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Preprint ARTICLE | doi:10.20944/preprints202310.1770.v1

An Exploration on a Normed Space called r-Normed Space: Some Properties and an Application

Rizal Purnawan

Subject: Computer Science And Mathematics, Analysis Keywords: r-normed space; r-norm; Lp-space; measure theory; functional analysis; coefficient of determination

Online: 27 October 2023 (11:08:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202204.0019.v1

A Quantum Space Model of Cosmic Evolution: Dark Energy and the Fate of the Universe

Carlos Melendres

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Quantum Space; spaceons; cosmic evolution; Friedmann equation; cyclic eternal universe; gravitational force; space force

Online: 4 April 2022 (14:39:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1399.v1

Phase Transitions in the Making of an Elementary Master Equation

Angelo Plastino, Diana Monteoliva

Subject: Physical Sciences, Mathematical Physics Keywords: master equation; phase transitions; entropy; disequilibrium

Online: 23 October 2023 (10:05:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1050.v1

Temperature-Stable Energy Storage Properties of Tungsten Bronze Type Compounds

Xi Shi, Neamul Hayet Khansur

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Energy storage properties; Tungsten bronze phase

Online: 14 June 2023 (13:45:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0319.v1

Analyses and the cause of corrosion and materials loss at the base of a three-phase separator in petroleum-based processing

Han Ding, Houbu Li, Dongtao Qi, Zhao Zhang, Guoquan Qi, Bin Wei, Xuehua Cai

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Three-phase separator; Perforation; Corrosion; Galvanic

Online: 25 February 2022 (01:46:40 CET)

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Working Paper ARTICLE

Decentralized Phase-Shedding with Low Power Mode for Multiphase Converter

Marc Cousineau, Martin Monroy, William Lorenzi Pol, Loïc Hureau, Guillaume Aulagnier, Philippe Goyhenetche, Eric Rolland, Didier Flumian

Subject: Engineering, Electrical And Electronic Engineering Keywords: Multiphase converter; Phase-Shedding; Decentralized Control

Online: 17 August 2021 (08:25:32 CEST)

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Working Paper ARTICLE

Dual-Functional Dielectric Metasurface Doublets

Kai Bian, Daquan Lu, Wei Hu

Subject: Chemistry And Materials Science, Nanotechnology Keywords: metasurface; Pancharatnam-Berry phase; dual-functionality

Online: 14 August 2019 (09:30:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0473.v1

The Quasi Steady State Cosmology in a Radiation Dominated Phase

Raj Bali

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Quasi Steady State Cosmology, Radiation Phase

Online: 19 November 2018 (16:48:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints201612.0073.v1

Shape Evolution of Hierarchical W₁₈O₄₉ Nanostructures: A Systematic Investigation of the Growth Mechanism, Properties and Morphology-Dependent Photocatalytic Activities

Guojuan Hai, Jianfeng Huang, Liyun Cao, Yanni Jie, Jiayin Li, Xing Wang

Subject: Chemistry And Materials Science, Nanotechnology Keywords: W18O49; microstructure; phase transformation; photocatalytic activity

Online: 14 December 2016 (08:33:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202305.0861.v1

Temperature Effect on the Dynamic Young’s Modulus, Shear Modulus, Internal Friction, and Dilatometric Changes in Quenched and Annealed AISI4130 Steel

Lioudmila A. Matlakhova, Emanuel C. Pessanha, Henrique Alves, Natalia A. Palii, Sergio N. Monteiro

Subject: Engineering, Metallurgy And Metallurgical Engineering Keywords: Elastic Properties; Low alloy Steel; Heat Treatment; Structural Stability; Martensitic Phase; Phase Transformation; Impulse Excitation Technique

Online: 11 May 2023 (13:39:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0893.v1

Effects of the Volume Fraction of the Secondary Phase After So-Lution Annealing on Electrochemical Properties of Super Duplex Stainless Steel UNS S32750

Byung-Hyun Shin, Wonsub Chung, Dohyung Kim

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Electrochemical properties; Super duplex stainless steel; Secondary phase; Volume fraction of secondary phase; Critical pitting temperature

Online: 25 April 2023 (07:09:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0131.v1

The Phase Diagram of the API Benzocaine and Its Highly Persistent, Metastable Crystalline Polymorphs

Ivo B. Rietveld, Hiroshi Akiba, Osamu Yamamuro, María Del Barrio, René Céolin, Josep Lluís Tamarit

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: active pharmaceutical ingredient; phase behaviour; pressure-temperature phase diagram; thermodynamics; crystal structure; thermal expansion; adiabatic calorimetry

Online: 10 April 2023 (02:51:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202212.0421.v1

The Guided Ultrasonic Wave Oscillation Phase Relation Between the Surfaces of Plate-Like Structures of Different Material Settings

Liv Rittmeier, Natalie Rauter, Andrey Mikhaylenko, Rolf Lammering, Michael Sinapius

Subject: Engineering, Mechanical Engineering Keywords: Guided Ultrasonic Waves; Continuous Wavelet Transformation; Instantaneous Phase Angle; Oscillation Phase; Numerical Simulation; Finite Element Method

Online: 22 December 2022 (06:45:27 CET)

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Preprint COMMUNICATION | doi:10.20944/preprints202210.0257.v1

Single Shot Lensless Interferenceless Phase Imaging of Biochemical Samples Using Synchrotron Near Infrared Beam

Molong Han, Daniel Smith, Soon Hock Ng, Tomas Katkus, Aravind Simon John Francis Rajeswary, Praveen P A, Keith R Bambery, Mark J Tobin, Jitraporn Vongsvivut, Saulius Juodkazis, Vijayakumar Anand

Subject: Physical Sciences, Optics And Photonics Keywords: Phase imaging, bioimaging; synchrotron; near infrared beam; holography; incoherent optics; chemical imaging; phase retrieval; 3D imaging.

Online: 18 October 2022 (08:28:25 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202105.0539.v1

Mechanical Properties Enhancement of the Au-Cu-Al Alloys via Phase Constitution Manipulation

Kang Wei Goo, Wan–Ting Chiu, Ayano Toriyabe, Masahiro Homma, Akira Umise, Masaki Tahara, Kenji Goto, Takumi Sannomiya, Hideki Hosoda

Subject: Chemistry And Materials Science, Biomaterials Keywords: α-phase; Au-Cu-Al system; fcc annealing twin; martensite phase; mechanical properties; microstructure; reflectance analysis

Online: 24 May 2021 (08:22:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.0450.v1

Suppressing Sidelobes in Metasurface-Based Antennas Using Cross-Entropy Method Variant and Full Wave Electromagnetic Simulations

Khushboo Singh, Karu Esselle

Subject: Engineering, Electrical And Electronic Engineering Keywords: metasurface; beam-steering; metamaterial; optimization; phase-shifting-surface; beam-steering, beam-scanning, phase-gradient surface; artificial surface; phase-correcting structure, cross-entropy method, sidelobes, grating lobes

Online: 6 September 2023 (14:48:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202207.0188.v1

Nanocomposites and Semiconductor Devices Based on Recycled Radioactive Waste

Valeriy Kizka

Subject: Physical Sciences, Radiation And Radiography Keywords: recycling; radioactive waste; radioactive nanopowders; radioactive nanocomposites; radioactive semiconductor devices; radioactive space microelectronics; space industry

Online: 12 July 2022 (10:08:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202204.0239.v1

Gray Public Space Under Urban Bridge - A Case Study of Public Arts Space Micro-Transformation Focusing on "Regional Culture" and "Art for All"

Ting Liu Liu, Wu Cao, Yuyi Liu

Subject: Arts And Humanities, Art Keywords: Urban grey space; Space under bridge; Public Art; Micro-transformation; Regional culture; Art for all

Online: 26 April 2022 (10:55:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202008.0620.v2

Parks are Critical Urban Infrastructure: Perception and Use of Urban Green Spaces in NYC During COVID-19

Bianca Lopez, Christopher Kennedy, Timon McPhearson

Subject: Business, Economics And Management, Accounting And Taxation Keywords: Urban green space; COVID-19; urban parks; open space; New York City; urban infrastructure; equity

Online: 30 September 2020 (10:00:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0570.v1

Both Classical and Quantum Information: Both Bit and Qubit. Both Physical and Transcendental Time

Vasil Penchev

Subject: Physical Sciences, Quantum Science And Technology Keywords: bit and qubit, classical and quantum information, epoché, physical and mathematical transcendentalism, qubit space (qubit Hilbert space), separable complex Hilbert space, the totality, transcendental time

Online: 23 June 2021 (11:12:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0263.v1

Phase Change and Regeneration Behaviors of Amino Acid Ionic Liquids Absorbents

Xueqin Chen, Hui Guo, Huang Ouyang, Qiongfang Song, Zhengguang Sun, Ziqiang Xu, Cao Li, Bingbing Jiang

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: Amino acid ionic liquid; phase change solvent; high CO2 absorption capacity; mechanism of phase change; recycling ability

Online: 21 December 2018 (15:26:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints201704.0108.v1

Non-Equilibrium Phase Behavior of Hydrocarbons in Compositional Simulations and Upscaling

Ilya M. Indrupskiy, Olga A. Lobanova, Vadim R. Zubov

Subject: Engineering, Energy And Fuel Technology Keywords: non-equilibrium phase behavior; compositional flow simulations; phase transitions; upscaling; hydrocarbon mixtures; non-equilibrium constant volume depletion

Online: 18 April 2017 (04:05:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1704.v1

Vision System for the Mars Sample Return Capture, Containment and Return System (CCRS)

Brent Jon Bos, David Donovan, John Capone, Chen Wang, Terra Hardwick, Dylan Bell, Yuqing Zhu, Robert Podgurski, Bashar Rizk, Ireneusz Orlowski, Rachel Edison, David Harvey, Brianna Dizzon, Lindsay Haseltine, Kristoffer Olsen, Chad Sheng, Robert Bousquet, Luan Vo, Georgi Georgiev, Kristen Washington, Michael Singer, Stefan Ioana, Anloc Le, Elena Georgieva, Michael Hackett, Michael Ravine, Michael Caplinger, Phillip Coulter, Erin Percy, Charles Torisky, Jean Lauenstein, Kaitlyn Ryder, Michael Campola, Dillon Johnstone, William J. Thomes, Richard G. Schnurr, John McCloskey, Eugenia DeMarco, Ellen Lee, Calinda Yew, Bo Yang, Mingyu Han, Bartosz Blonski

Subject: Aerospace Engineering, Engineering Keywords: Mars; cameras; sample return; space optics

Online: 26 April 2024 (09:33:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0342.v1

Nonlinear Heisenberg-Robertson-Schrodinger Uncertainty Principle

K. MAHESH KRISHNA

Subject: Computer Science And Mathematics, Analysis Keywords: Uncertainty Principle; Lipschitz map; Banach space

Online: 6 February 2024 (09:28:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.0799.v1

Hypersurfaces in a Euclidean Space with a Killing Vector Field

Mohammed Guediri, Sharief Deshmukh

Subject: Computer Science And Mathematics, Geometry And Topology Keywords: Euclidean space; Hypersurface; Killing vector field

Online: 13 November 2023 (10:21:04 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.0918.v1

Categorical Join and Generating Families in Diffeological Spaces

Enrique Macías -Virgós, Reihaneh Mehrabi

Subject: Computer Science And Mathematics, Geometry And Topology Keywords: Diffeological space; Generating family; Categorical join

Online: 14 September 2023 (08:36:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.0445.v1

Antigravity in the Six Dimensional Space-Time

seyed kazem mousavi

Subject: Physical Sciences, Applied Physics Keywords: antigravity; electromagnetic; six dimensional space-time

Online: 7 September 2023 (02:49:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1108.v1

An Endpoint Functional Continuous Uncertainty Principle

K. MAHESH KRISHNA

Subject: Computer Science And Mathematics, Analysis Keywords: Uncertainty Principle, Parseval Frame, Banach space.

Online: 15 August 2023 (09:08:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.1643.v1

Functional Continuous Uncertainty Principle

K. MAHESH KRISHNA

Subject: Computer Science And Mathematics, Analysis Keywords: Uncertainty Principle; Parseval Frame; Banach space

Online: 25 July 2023 (04:15:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.1569.v1

Gravity as a Result of Symmetry between Matter Energy and Space Energy

Amrit Sorli, Štefan Čelan

Subject: Physical Sciences, Theoretical Physics Keywords: space; matter; symmetry; gravity; gravitational singularities

Online: 24 July 2023 (08:52:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.1108.v1

High-Sensitivity Seismometer Development for Lunar Applications

Leandro De Paula, Ronald Norton, Ho Jung Paik, Nicholas Schmerr, Roger Williamson, Talso Chui, Hahn Inseob

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: lunar seismology; instrumentation; seismometer; planets; space

Online: 17 July 2023 (11:54:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202109.0323.v6

The Morphology of the Active Galactic Nucleus and its Impact on Accretion Flows and Relativistic Jets

Mohammed Al-Fadhli

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Relativistic Jets; Conformal Space-time Background.

Online: 12 January 2023 (13:50:25 CET)

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The G2 gas cloud motion data and the scarcity of observations on the event horizon-scale distances have challenged the comprehensiveness of the central supermassive black hole model. In addition, the Planck Legacy 2018 release has preferred a positively curved early Universe with a confidence level higher than 99%. This study investigates the impact of the background curvature and its evolution over the conformal time on the formation and morphological evolution of central compact objects and the consequent effect on their host galaxies. The formation of a galaxy from the collapse of a supermassive gas cloud in the early Universe is modeled based on interaction field equations as a 4D relativistic cloud-world that flows and spins through a 4D conformal bulk of a primordial positive curvature considering the preference of the Planck release. Owing to the curved background, this scenario of galaxy formation reveals that the core of the galaxy undergoes a forced vortex formation with a central event horizon leading to opposite vortices (traversable wormholes) that spatially shrink while evolving in the conformal time. It indicates that the galaxy and its core are formed in the same process whereas the surrounding gas clouds form the spiral arms due to the frame-dragging induced by the fast-rotating core. It demonstrates that the accretion flow onto the central supermassive compact object only occurs at the central event horizon of the two opposite vortices while their other ends eject the relativistic jets. This can elucidate the relativistic jet formation and explain the G2 gas cloud motion if its orbit is around one of the vortices but at a distance from the central event horizon. The gravitational potential of the early curved bulk could contribute to galaxy formation while the present spatial flatness deprives the potential of bulk which could lead to galaxy quenching. The formation of a galaxy and its core simultaneously could explain the growth of the supermassive compact galaxy core to a mass of ~10⁹ M_⊙ at just 6% of the current Universe age.

Preprint ARTICLE | doi:10.20944/preprints202212.0402.v1

Cultural Space Methodology on Assessment of Authenticity of Indigenous Community Forest and Conservation Area in Indonesia

Rizqi Abdulharis, Susilo Kusdiwanggo, Ida Nurlinda, Gustaff Harriman Iskandar, Angga Dwiartama, Andri Hernandi, Teguh Purnama Sidiq

Subject: Social Sciences, Geography, Planning And Development Keywords: cultural space; indigenous community; Indonesia; methodology

Online: 21 December 2022 (11:53:49 CET)

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Indigenous knowledge is proven to be one of the foundations of sustainable land and marine management. While indigenous knowledge is acknowledged as of important factors on maintenance of biodiversity of the planet, it also ensures the sustenance of social and economic system of indigenous community. To facilitate the application of indigenous knowledge on management of customary forest in Indonesia, since 2012, the Government of Indonesia has been providing formal access for indigenous communities to their forests to maintain forest sustainability and to enhance the welfare of indigenous community. Nonetheless, the achievement of sustainable development goals in the scope of forest and conservation area management is threatened by various competing interests and power imbalance, which mostly leads to conversion of naturally vegetated area, as well as the inability of the community to integrate new economic opportunities to its institution. Moreover, the Government of Indonesia has not been regulating the involvement of indigenous community on the management of conservation area. Most importantly, such a program provides no reference on indigenous community, especially on the assessment of authenticity of indigenous community’s forest. Cultural space methodology may fill the aforementioned gaps. The methodology was developed based on the notion of cultural space and land administration, particularly the people-and-land/marine space relationship. Moreover, such a methodology was also constructed based on the experiences of agricultural and maritime communities in Indonesia on the administration of their territories. The methodology provides a procedure to convert information on the interrelation of indigenous community, its cultural space in forest and conservation area, and indigenous knowledge into geospatial information and data that represent the cultural space unit as a geographic feature. Therefore, such methodology may be utilised to assess the authenticity of a long-existing relationship between a community, especially an indigenous one, and its land, particularly that serves conservational function.

Preprint ARTICLE | doi:10.20944/preprints202209.0438.v1

Indefinite Halmos, Egervary and Sz.-Nagy Dilations

K. MAHESH KRISHNA

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: Dilation; Indefinite inner product space; Module

Online: 29 September 2022 (02:48:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0348.v1

Novel State-Space Realization Generalized from Turbine Blade Modeling

Andrew van Paridon, Timothy Sands

Subject: Engineering, Mechanical Engineering Keywords: transfer function; state-space; realization; conversion

Online: 28 February 2022 (07:23:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0693.v1

Measuring and Evaluating the Quality of Urban Walkways from the Perspective of the Creative Urban Space

Ameneh Ekrasardashti, Hassan Sajadzadeh, Farshid Aram

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Urban walkways; Creative city, Urban Space

Online: 28 May 2021 (10:57:07 CEST)

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Working Paper ARTICLE

Biocosmology - Multiverse, Life, and Consciousness

Amrit Srecko Sorli, Štefan Čelan

Subject: Physical Sciences, Acoustics Keywords: cosmology, life, superfluid quantum space, consciousness.

Online: 15 April 2021 (13:38:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0727.v1

Art in Urban Spaces

Mehrdad Karimimoshaver, Bahare Eris, Farshid Aram, Amir Mosavi

Subject: Social Sciences, Anthropology Keywords: meaning; urban space; urban art; Tehran

Online: 30 March 2021 (10:48:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0676.v1

Conformal Symmetry and Supersymmetry in Rindler Space

J.W. Van Holten

Subject: Physical Sciences, Particle And Field Physics Keywords: Conformal field theory; supersymmetry; Rindler space

Online: 28 July 2020 (10:28:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201804.0038.v1

Characterization of Caristi Type Mapping through its Absolute Derivative

Mohamad Muslikh, Adem Kilicman, Siti Hasana, Norfifah Bachok

Subject: Computer Science And Mathematics, Analysis Keywords: Fixed point theorem; Differentiation; Metric space

Online: 3 April 2018 (15:30:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0164.v1

Analysis of Dark Current in BRITE Nanostellite CCD Sensors

Adam Popowicz

Subject: Environmental And Earth Sciences, Space And Planetary Science Keywords: CCD defects; space telescopes; nano-satellites

Online: 18 January 2018 (04:31:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints201612.0144.v1

Temporal Changes of Per Capita Green Space of Colombo District, Sri Lanka

Lin Li, Pgrni Pussella

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Green Space; NDVI; Per Capita; Urbanization

Online: 29 December 2016 (16:04:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0060.v1

The RadioAstron dedicated DiFX distribution

Gabriele Bruni, James M. Anderson, Walter Alef, Helge Rottmann, Andrei P. Lobanov, J. Anton Zensus

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: VLBI; Space-VLBI; Correlation; RadioAstron; AGN

Online: 19 July 2016 (04:54:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.0285.v1

Trajectory Smoothing Planning of Delta Parallel Robot Combining Cartesian and Joint Space

Zhu Dachang, He Yonglong, Yu Xuezhe, Li Fangyi

Subject: Engineering, Mechanical Engineering Keywords: Delta parallel robot; kinematic and dynamic modelling; trajectory smoothing planning; combining Cartesian space with joint space

Online: 9 October 2023 (02:58:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.1602.v1

The Convergence of Discrete Models for Nonlinear Schrödinger Equation in Dark Solitons Motion

Yazhuo Li, Qian Luo, Quandong Feng

Subject: Computer Science And Mathematics, Mathematics Keywords: Nonlinear schrödinger equation; Space discretization models; Time-space discretization models; Crank-Nicolson method; New-Difference method.

Online: 23 May 2023 (07:45:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0371.v1

Orthogonal Gyrodecompositions of Real Inner Product Gyrogroups

Milton Ferreira, Teerapong Suksumran

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: real inner product gyrogroup; orthogonal decomposition; gyroprojection; coset space; partitions; quotient space; gyrolines; cogyrolines; fiber bundles

Online: 23 May 2020 (10:32:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0371.v1

Dynamic Path in C⁴ Space-Time

Dimitris Mastoridis, K. Kalogirou

Subject: Physical Sciences, Mathematical Physics Keywords: dynamic path; ADM formalism; complex space-time; extended space-time; unied theories; geometric unication

Online: 19 September 2018 (08:30:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.2028.v1

Phase Change Material Thermoelectric Generator

Carlos Armenta-Déu

Subject: Engineering, Energy And Fuel Technology Keywords: thermoelectric generation; phase change material; thermal conductivity

Online: 27 December 2023 (09:36:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1759.v1

Constraints on Phase Transitions in Neutron Star Matter

Len Brandes, Wolfram Weise

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: dense baryonic matter; neutron stars; phase transitions

Online: 25 December 2023 (09:55:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.1438.v1

The Multivariate Regression Models Suggested as Tools for Categorizing Solitarious and Gregarious Groups of the Main Pest Locust, Schistocerca gregaria, Produce Reproducible Results

Somia Saadi, Noureddine Bakkali, Rubén Martín Blázquez, Abdelmounim Badih, Mohammed Bakkali

Subject: Biology And Life Sciences, Insect Science Keywords: Locust; Phase change; Outbreak; Solitarious; Gregarious; Model

Online: 21 September 2023 (08:49:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.0191.v1

Phase Portraits of the Families VII and VIII of the Quadratic Systems

Laurent Cairó, Jaume Llibre

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: quadratic vector fields; quadratic systems; phase portraits

Online: 4 July 2023 (10:05:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0873.v1

Target Selection Strategies for Demucs-Based Speech Enhancement

Caleb Rascon, Gibran Fuentes-Pineda

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: demucs; target selection; embeddings; phase-based beamforming

Online: 13 June 2023 (04:19:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0460.v1

Thermal Disorder in Finite-Length Carbon Nanowire

Chi Ho Wong, Evgeny Buntov, Wai Sze YIP, Suet To, Malvina Guseva, Anatoly Zatsepin

Subject: Physical Sciences, Condensed Matter Physics Keywords: Carbon nanowire; phase transition; Monte Carlo simulation

Online: 18 April 2023 (02:53:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0005.v1

Modelling Microsegregation during Metal Additive Manufacturing: Impact of Dendrite Tip Kinetics and Finite Solute Diffusion

V. S. Hariharan, Baler Nithin, L. Ruban Raj, Surendra Kumar Makineni, B.S. Murty, Gandham Phanikumar

Subject: Engineering, Metallurgy And Metallurgical Engineering Keywords: Additive Manufacturing; Microsegregation; Solidification; Calphad; Phase-field

Online: 3 April 2023 (04:09:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202207.0128.v1

Effect of Co and Cr on the Stability of Strengthening Phases in Nickelbase Superalloys

Martin Bäker, Joachim Rösler

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: nickelbase alloys; phase stability; density functional theory

Online: 8 July 2022 (03:12:45 CEST)

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Working Paper ARTICLE

Symmetry Modulates the Amplitude Spectrum Slope Effect on Visual Preference

Chia-Ching Wu, Chien-Chung Chen

Subject: Social Sciences, Cognitive Science Keywords: amplitude spectrum; image statistics; complexity; aesthetics; phase

Online: 23 October 2020 (20:47:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0389.v1

The TanDEM-X Change DEM: the New Temporal DEM of the TanDEM-X Mission

Marie Lachaise, Markus Bachmann, Thomas Fritz, Martin Huber, Barbara Schweißhelm, Birgit Wessel

Subject: Engineering, Automotive Engineering Keywords: TanDEM-X Mission; Change DEM; delta-phase

Online: 19 October 2020 (14:53:16 CEST)

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Preprint REVIEW | doi:10.20944/preprints202004.0530.v1

Role of CDK1 in Translational Regulation in the M-Phase

Jaroslav Kalous, Denisa Jansova, Andrej Susor

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: CDK1; eIF4F; mTOR; mRNA translation; M-phase

Online: 30 April 2020 (13:46:44 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202004.0206.v2

An Approach to Screen COVID-19 Patients Using Diagnostic Kits: With Special Reference to Pakistan

Faiza Durrani, Farhat Zaheer

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: COVID-19; RT-qPCR; liquid phase immunoassay

Online: 30 April 2020 (05:10:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0120.v1

Science and Technology of High Performance Ferritic (HiperFer) Stainless Steels

Bernd Kuhn, Michal Talik, Torsten Fischer, Xiuru Fan, Yukinori Yamamoto, Jennifer Lopez Barrilao

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: HiperFer; fatigue; creep; reactive strengthening; Laves phase

Online: 7 March 2020 (09:45:31 CET)

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Preprint ARTICLE | doi:10.20944/preprints201812.0047.v1

Effect of Y/Mg Ion Ratio and Phase Assemble on Ionic Conductivity of Multi-Doped Zirconia Ceramic Solid Electrolytes

Y.G. Hoo, Yusheng Shi, Wenzhong Lu

Subject: Chemistry And Materials Science, Electrochemistry Keywords: phase assemble, zirconia electrolyte, ionic conductivity, SOFCs

Online: 4 December 2018 (08:43:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints201804.0200.v1

The Difference of Corrosion Behavior in Initial Period for the Hot-Rolled and Cold-Rolled 2205 Duplex Stainless Steel

Tao Gao, Jian Wang, Qi Sun, Peide Han

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: pitting; sigma phase; 2205; duplex stainless steel

Online: 16 April 2018 (09:32:02 CEST)

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Preprint REVIEW | doi:10.20944/preprints202305.0509.v1

Sensitivity Enhancement for Separation-Based Analytical Techniques Utilizing Large Volume Injection and Analyte Derivatization for Trace Analysis in Bio-Fluids

Hanan Farouk, Hager Ebrahim, Heba Sonbol, Monika Malak, Maha Kamal, Noha Ibrahim, Ahmed Shawky, Walaa Zarad, Ahmed Emad, Samy Emara

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: separation-based analytical techniques; large volume injection; solid phase enrichment; solid phase analytical derivatization; packed reactor; trace analysis

Online: 8 May 2023 (10:17:13 CEST)

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Preprint REVIEW | doi:10.20944/preprints202402.1154.v1

3D Printing Modules for Self-Assembling Space Systems

Alex Ellery, Abdurr Elaskri

Subject: Engineering, Aerospace Engineering Keywords: additive manufacturing; 3D printed electric motors; self-assembly; reconfigurable robotics; flat-pack space structures; space debris resources

Online: 20 February 2024 (14:25:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.0821.v1

Hybrid FSO/RF Communications in Space–Air–Ground Integrated Networks: A Reduced Overhead Link Selection Policy

Petros S. Bithas, Hector E. Nistazakis, Athanassios Katsis, Liang Yang

Subject: Engineering, Telecommunications Keywords: Composite fading; free space optical communications; hybrid FSO/RF communications; link selection; space-air-ground integrated networks

Online: 11 January 2024 (02:38:46 CET)

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Preprint CASE REPORT | doi:10.20944/preprints202401.1348.v1

Perirectal Abscess with Upward Extension to the Extraperitoneum and Space of Retzius: A Case Report

Hsiang Teng, Po-Hsien Wu

Subject: Medicine And Pharmacology, Surgery Keywords: perirectal abscess; extraperitoneal extension; space of Retzius

Online: 17 January 2024 (16:13:43 CET)

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A perirectal abscess, while typically considered benign, has the potential to invade extraperitoneal spaces, including the space of Retzius, resulting in complications with severe systemic illness. It is postulated that there is communication within adipose tissue between the pararectal spaces and the vesical extraperitoneal space anteriorly, secondary to the termination of the umbilical-vesical fascia at the reflection of the vesical peritoneum. While occurrences of perirectal abscess ex-tending to the extraperitoneal space are infrequent, a thorough understanding of the anatomical structure, physiology, and the subsequent therapeutic approach remains crucial. For assessment, a computed tomography scan with intravenous contrast is preferred for evaluation, given the probable insidious and nonspecific nature of the clinical presentation, physical exam signs, and even laboratory studies. Primary therapeutic modalities involve immediate resuscitation, intra-venous administration of broad-spectrum antibiotics, and percutaneous drainage. Surgical in-tervention may become necessary in cases where there is no prompt improvement in septic progression. Additionally, the underlying comorbidities and baseline illness could be indicative of unfavorable outcomes. If fever or sepsis is not efficiently controlled, a more comprehensive workup or intervention should be contemplated, considering the associated higher risks of complications and mortality rates. In this study, we presented the case of a 68-year-old male with diffuse pain located in the lower abdomen. Fortunately, an immediate computed tomography scan played a pivotal role in iden-tifying a perirectal abscess with upward extension to the space of Retzius, which was subse-quently treated appropriately. Above all, this rare case presentation underscores the anatomic complexity within pelvic compartments and emphasizes the importance of maintaining high-index suspicions and analyzing overall differential diagnosis.

Preprint ARTICLE | doi:10.20944/preprints202305.1070.v1

P2P Coordinated Control Between SPV and STATCOM in a Microgrid for Power Quality Compensation using LSTM-Genetic Algorithm

Durgamadhab Swain, Meera Viswavandya, Ritesh Dash, Kalvakurthi Jyotheeswara Reddy, Dhanamjayulu C, Arunkumar Gopal, Baseem Khan, Dr M Ravindra

Subject: Engineering, Electrical And Electronic Engineering Keywords: Algorithm; GA; PSO; PSO-LSTM; Search Space

Online: 16 May 2023 (03:26:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0437.v1

Electronic Waste Collection Incentivization Scheme Based on the Blockchain

Ala Abdulsalam Alarood, Adamu Abubakar Ibrahim, Abdulrahman Alzahrani, Faisal S. Alsubaei

Subject: Computer Science And Mathematics, Software Keywords: Incentivization; E-waste; Vector space; Smart contract

Online: 8 May 2023 (04:04:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.1251.v1

Improved Curve–Flattening for Flexible Space Robotics

Wenxin Li, Timothy Sands

Subject: Engineering, Aerospace Engineering Keywords: robotics; flexible; control; structural filter; space robotics

Online: 30 April 2023 (03:39:25 CEST)

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Preprint REVIEW | doi:10.20944/preprints202301.0266.v1

Astrovirology: how viruses will enhance our understanding of life in the universe

Gareth Trubl, Kenneth Stedman, Kathryn Bywaters, Emily Matula, Pacifica Sommers, Simon Roux, Nancy Merino, John Yin, Jason Kaelber, Aram Avila-Herrera, Peter Johnson, John Johnson, Schuyler Borges, Peter Weber, Jennifer Pett-Ridge, Penelope Boston

Subject: Biology And Life Sciences, Virology Keywords: LIFE; Origin; Exobiology; Evolution; Ecology; Astrobiology; Space

Online: 16 January 2023 (03:44:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202207.0175.v1

Orthogonal Frames in Krein Spaces

Osmin Oberto Ferrer Villar, Arley Yessit Sierra Acosta, Osvaldo De Jesus Polo Flórez

Subject: Computer Science And Mathematics, Analysis Keywords: Krein space; fundamental symmetry; Hilbert associated; frames

Online: 12 July 2022 (08:10:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202206.0077.v1

The Origin of the Fundamental Constants

José Garrigues-Baixauli

Subject: Physical Sciences, Mathematical Physics Keywords: Fundamental Constants; Planck length; Discrete Space-Time

Online: 6 June 2022 (09:36:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0398.v1

A Survey and Evaluation Model for Generative Software Development (GSD)

Mohammad Reza Besharati

Subject: Computer Science And Mathematics, Information Systems Keywords: Generative Software Development; Code Generation; Complexty Space

Online: 30 May 2022 (11:32:07 CEST)

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Preprint TECHNICAL NOTE | doi:10.20944/preprints202106.0226.v1

Global Ocean Studies from CALIOP/CALIPSO by Removing Polarization Crosstalk Effects

Xiaomei Lu, Yongxiang Hu, Ali Omar, Rosemary Baize, Mark Vaughan, Sharon Rodier, Jayanta Kar, Brian Getzewich, Patricia Lucker, Charles Trepte, Chris Hostetler, David Winker

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: CALIPSO; space lidar; ocean; depolarization ratio; crosstalk

Online: 8 June 2021 (13:05:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0533.v2

Formulation Of Quantum Mechanics On Poincaré Disks

Arturo Tozzi

Subject: Physical Sciences, Acoustics Keywords: Einstein; manifold; Hilbert space; observer; measurement; matrix

Online: 4 June 2021 (11:59:08 CEST)

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Working Paper ARTICLE

Type II Vacuum Spacetime Admitting Closed Timelike Curves

Faizuddin Ahmed

Subject: Physical Sciences, Mathematical Physics Keywords: closed timelike curves; Misner space; vacuum spacetime

Online: 1 June 2021 (09:44:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0215.v1

The Trojan Initiative: A Proposal for a Research Settlement on 2011 HM₁₀₂ and a Framework for Future Settlement on Asteroids

Briana Chen, Geetika Chitturi, Archit Kalra, Raghav Sriram

Subject: Engineering, Automotive Engineering Keywords: 2011 HM102; trojan asteroid; settlement; space exploration

Online: 7 April 2021 (17:22:25 CEST)

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Humankind has yearned for hundreds of thousands of years to explore and truly understand the dynamics of our enigmatic universe. However, we have often been limited by our hindsight here on Earth, or the limitations of human travel to further destinations. Having the ability to send humans to deep space would arguably set us millions of years ahead in our scientific understanding of various physical processes, including insight on some of the key mysteries that we still face. Perhaps a settlement further away from the Sun, Earth, and limiting optical resolution could provide us with greater ability to collect more meaningful data through our telescopes or other instruments. Moreover, one of the most significant abilities of such a settlement could be slightly easier access to sites of research within our own solar system that could be essential in the forthcoming years, such as Jupiter, Titan, the Kuiper Belt, and some Oort Cloud objects. Here we describe a unique option and set of goals to pursue and achieve just that via a mission to an L5 Trojan asteroid of Neptune, 2011 HM102. In this paper, we propose a number of possible challenges presented by traveling to the base, modeling its layout, maintaining the presence of life, and opportunities for research on the asteroid as well as possible solutions to these challenges. We begin our journey by outlining some motivations for creating a settlement on the asteroid, then outline a few key technological goals that must be achieved before we are capable of efficiently sending a colony of people to the settlement. We describe materials necessary for its construction as well as a novel mechanism for artificial gravity utilizing the Roche limit of the asteroid and multiple applications of quark-gluon plasma. From there we explore more aspects of settlement design, including key considerations for the layout of our settlement, sources of power, and protection from high-energy radiation from sources such as galactic cosmic rays. Then, we embark on a detailed discussion on the measures needed to maintain life on the settlement, such as hydroponic crop growth, a cycle for water recovery and oxygen generation, temperature maintenance, and air purification. Some remarks on the sustainability of life on the settlement follow, as well as some recommendations for entertainment, social life, economics, and governmental systems on the settlement.

Working Paper ARTICLE

Olfactory Perception in Relation to the Physicochemical Odor Space

Antonie Louise Bierling, Ilona Croy, Thomas Hummel, Gianaurelio Cuniberti, Alexander Croy

Subject: Social Sciences, Behavior Sciences Keywords: physicochemical odor space; olfactory perception; molecule structure

Online: 31 March 2021 (14:59:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0299.v1

A Graph-Theoretic Approach to Understanding Emergent Behavior in Physical Systems

Alyssa Adams

Subject: Physical Sciences, Acoustics Keywords: Emergence; Ising Model; Information; Computation; State Space

Online: 12 February 2021 (11:11:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints201908.0037.v6

Algebraic Polynomial Sum Solver Over $\{0, 1\}$

Frank Vega

Subject: Computer Science And Mathematics, Computer Science Keywords: complexity classes; polynomial time; reduction; logarithmic space

Online: 11 February 2021 (11:56:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0087.v1

Supporting Children’s Independent Activities in Smart and Playable Public Places

Chiara Garau, Alfonso Annunziata

Subject: Social Sciences, Geography, Planning And Development Keywords: public space; smart-city; children; affordance; Sardinia

Online: 4 September 2020 (07:41:08 CEST)

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Preprint REVIEW | doi:10.20944/preprints202009.0086.v1

Molecular Pharming to Support Human Life on the Moon, Mars, and Beyond

Matthew J. McNulty, Yongao Xiong, Kevin Yates, Kalimuthu Karuppanan, Jacob M. Hilzinger, Aaron J. Berliner, Jesse Delzio, Adam P. Arkin, Nancy E. Lane, Somen Nandi, Karen A. McDonald

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: life support for space; plant molecular pharming

Online: 4 September 2020 (07:31:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0160.v1

Space Habitat Data Centers – For Future Computing

Ayodele Periola, Akintunde Alonge, Kingsley Ogudo

Subject: Engineering, Electrical And Electronic Engineering Keywords: Space Habitats; Data Centers; Computing Platforms Asteroids

Online: 8 July 2020 (18:44:54 CEST)

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Preprint ARTICLE | doi:10.3390/sci2020041

Organic Molecules: Is It Possible to Distinguish Aromatics from Aliphatics Collected by Space Missions in High-Speed Impacts?

Mark Burchell, Kathryn Harriss

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Astrobiology; Enceladus; space-missions; organic; aromatic; aliphatic

Online: 8 June 2020 (00:00:00 CEST)

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A prime site of astrobiological interest within the Solar System is the interior ocean of Enceladus. This ocean has already been shown to contain organic molecules, and is thought to have the conditions necessary for more complex organic biomolecules to emerge and potentially even life itself. This sub-surface ocean has been accessed by Cassini, an unmanned spacecraft that interacted with the water plumes ejected naturally from Enceladus. The encounter speed with these plumes and their contents, was between 5 and 15 km s⁻¹. Encounters at such speeds allow analysis of vapourised material from submicron-sized particles within the plume, but sampling micron-sized particles remains an open question. The latter particles can impact metal targets exposed on the exterior of future spacecraft, producing impact craters lined with impactor residue, which can then be analysed. Although there is considerable literature on how mineral grains behave in such high-speed impacts, and also on the relationship between the crater residue and the original grain composition, far less is known regarding the behaviour of organic particles. Here we consider a deceptively simple yet fundamental scientific question: for impacts at speeds of around 5–6 kms⁻¹ would the impactor residue alone be sufficient to enable us to recognise the signature conferred by organic particles? Furthermore, would it be possible to identify the organic molecules involved, or at least distinguish between aromatic and aliphatic chemical structures? For polystyrene (aromatic-rich) and poly(methyl methacrylate) (solely aliphatic) latex particles impinging at around 5 km s⁻¹ onto metal targets, we find that sufficient residue is retained at the impact site to permit identification of a carbon-rich projectile, but not of the particular molecules involved, nor is it currently possible to discriminate between aromatic-rich and solely aliphatic particles. This suggests that an alternative analytical method to simple impacts on metal targets is required to enable successful collection of organic samples in a fly-by Enceladus mission, or, alternatively, a lower encounter speed is required.

Working Paper ARTICLE

On Stability of Iterative Sequences with Error

Salwa Salman Abed, Noor Saddam Taresh

Subject: Computer Science And Mathematics, Analysis Keywords: Banach space; iterative sequences; stability; fixed points

Online: 11 June 2019 (08:38:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0021.v1

Unification of Commutative Relativity and Noncommutative Quantum Dynamics Via Cyclic Groupoids and Spacetime Fusion Categories

Arturo Tozzi, James F. Peters

Subject: Physical Sciences, Quantum Science And Technology Keywords: Einstein; manifold; Hilbert space; Abelian; dagger category

Online: 3 September 2018 (10:51:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0474.v1

Bijective Analysis of Symmetry in Physics

Amrit Sorli, Patro Santanu

Subject: Physical Sciences, Thermodynamics Keywords: symmetry; time; space; entropy; bijective analysis; supersymmetry

Online: 28 August 2018 (11:11:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201806.0070.v1

Theory of g-T_g-Sets

Mohammad Irshad Khodabocus, Noor-Ul-Hacq Sookia

Subject: Computer Science And Mathematics, Geometry And Topology Keywords: generalized topological space; generalized operations; generalized sets

Online: 5 June 2018 (13:34:42 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202401.0929.v1

The Economics Of A Research Town

Shreyas Kamath

Subject: Business, Economics And Management, Economics Keywords: Research Town, Tech Cluster, Diversity in Work Space, Inclusivity in Work Space, Network Effect, Knowledge Spillover, Technology Transfer

Online: 11 January 2024 (12:00:33 CET)

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Preprint REVIEW | doi:10.20944/preprints202210.0275.v1

Biodiversity and Human Health: A Scoping Review and Case Studies on Underrepresented Linkages

Jake Robinson, Andrew Breed, Araceli Camargo, Nicole Redvers, Martin Breed

Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: biodiversity; human health; green space; urban green space; microbiome; urban microbiome; COVID-19; EcoHealth; planetary health; nature connectedness

Online: 19 October 2022 (09:55:39 CEST)

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Mounting evidence supports the connections between exposure to environment types––such as green spaces and biodiversity––and human health. However, the mechanistic links that connect biodiversity (the variety of life) and human health, plus the level of supporting evidence, are less clear. Here, we undertook a scoping review to map the links between biodiversity and human health and summarise the levels of associated evidence using an established weight of evidence framework. Distinct from other reviews, we provide additional context regarding the environment-microbiome-health axis, evaluate the environmental buffering pathway (e.g., biodiversity impacts on air pollution), and draw upon expert opinion to provide case studies on three underrepresented linkages. The case studies include (1) biodiversity and Indigenous Peoples’ health, (2) biodiversity and urban social equity, and (3) biodiversity and COVID-19. We observed a moderate level of evidence to support the environmental microbiota-human health pathway and a moderate-high level of evidence to support broader nature pathways (e.g., green space) to various health outcomes, from stress reduction to enhanced wellbeing and improved social cohesion. However, studies of broader nature pathways did not typically include specific biodiversity metrics, indicating clear research gaps. Further research is required to understand the connections and causative pathways between biodiversity (e.g., using metrics such as taxonomy, diversity/richness, structure, and function) and health outcomes. There are well-established frameworks to assess the effects of broad classifications of nature on human health. These can assist future research in linking biodiversity metrics to human health outcomes. Our case studies on underrepresented linkages highlight the roles of biodiversity and its loss on urban lived experiences, infectious diseases, and Indigenous Peoples’ sovereignty and livelihoods. More research and awareness of these socioecological interconnections are needed.

Preprint ARTICLE | doi:10.20944/preprints202107.0310.v1

Analysis and Research on the Node Space of Ancient Villages Based on Space Syntax

Yile Chen, Junzhang Chen

Subject: Social Sciences, Anthropology Keywords: Ancient villages; historical locations; node space; convex space method, field of view analysis method, Baidu time machine; parameters

Online: 13 July 2021 (14:16:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0363.v1

Extension of Equivalent System Mass for Human Exploration Missions on Mars

Aaron Berliner, George Makrygiorgos, Avery Hill

Subject: Engineering, Automotive Engineering Keywords: Space Systems Bioengineering; Equivalent System Mass; ESM; Environmental Control and Life Support Systems; ECLSS; Space Logistics; Uncertainty; Risk

Online: 18 January 2021 (17:39:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.1711.v1

Conformational Analysis of Trifluoroacetyl Triflate, CF₃C(O)OSO₂CF₃: Experimental Vibrational and DFT Investigation

Agustín Spaltro, Melina G. Peluas, Carlos O. Della Védova, Rosana M. Romano

Subject: Inorganic And Nuclear Chemistry, Chemistry And Materials Science Keywords: conformations; matrix-FTIR; gas-phase FTIR; Raman; DFT

Online: 26 April 2024 (07:43:27 CEST)

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Preprint REVIEW | doi:10.20944/preprints202404.1677.v1

Features of adaptive phase correction of optical wave distortions under conditions of intensity fluctuations

Vladimir Petrovich Lukin

Subject: Optics And Photonics, Physical Sciences Keywords: optical waves, turbulence, amplitude, phase, dislocations, measurement, correction

Online: 25 April 2024 (12:40:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.1676.v1

Squeezing Droplet Formation in a Flow-Focusing Micro Cross-Junction

Filippo Azzini, Beatrice Pulvirenti, Massimiliano Rossi, Gian Luca Morini

Subject: Engineering, Other Keywords: Two-phase flow; OpenFOAM; droplet simulation; micro-junction

Online: 23 January 2024 (09:46:14 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1554.v1

Analyzing Blood Cells of High-Risk Myelodysplastic Syndrome Patients Using Interferometric Phase Microscopy and Fluorescent Flow Cytometry

Itay Barnea, Lior Luria, Arik Girsault, Ofira Dabah, Matan Dudaie, Drorit Merkel, Natan T Shaked

Subject: Engineering, Bioengineering Keywords: myelodysplastic syndromes (MDS); interferometric phase microscopy (IPM); hematology

Online: 22 January 2024 (09:47:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.1943.v1

Determination of Active Pharmaceutical Ingredients in Saridon Tablets Using an Economical and Sensitive TLC Method Combined with Densitometry

Alina Pyka-Pająk

Subject: Medicine And Pharmacology, Pharmacy Keywords: APIs; Saridon; normal phase thin layer chromatography; densitometry

Online: 30 November 2023 (04:08:14 CET)

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Preprint REVIEW | doi:10.20944/preprints202311.0998.v1

Polymeric Materials in Speciation Analysis Based on Solid Phase Extraction

Ivanka Dakova, Tanya Yordanova, Irina Karadjova

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: polymeric materials; speciation; chemical elements; solid phase extraction

Online: 15 November 2023 (14:27:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.1167.v1

Phase Transition in Ant Colony Optimization

Shintaro Mori, Shogo Nakamura, Kazuaki Nakayama, Masato Hisakado

Subject: Physical Sciences, Theoretical Physics Keywords: Ant colony optimization; Polya urn process; phase transition

Online: 19 October 2023 (08:04:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1084.v1

An Eccentricity Error Separation Method for Rotary Table Based on Phase Feature of Moiré Signal of Single Reading Head

Yao Huang, Shuangliang Che, Weibin Zhu, Cheng Ma, Yi Zhou, Wei Zou, Zi Xue

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: rotary table; eccentricity error; moiré signal; phase feature

Online: 17 October 2023 (11:25:50 CEST)

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