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Preprint ARTICLE | doi:10.20944/preprints202307.1515.v1

Excited-State Dynamics Leading either to Triplet Formation or Coordinative Expansion following Photolysis of Cu(II)-5,10,15,20-meso-tetrakis(phenyl)porphyrin or Cu(II)-5,10,15,20-meso-tetrakis(N-methylpyridium-4-yl)porphyrin: A DFT, TD-DFT, Luminescence and Femtosecond Time-Resolved Absorbance Study

Ross McGarry, Lazaros Varvarezos, Mary T. Pryce, Conor Long

Subject: Chemistry And Materials Science, Inorganic And Nuclear Chemistry Keywords: Porphyrin; Copper; Photophysics; DFT; TD-DFT; Luminescence; Transient Absorption; Femptosecond

Online: 24 July 2023 (10:30:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1003.v1

Enhanced Energy Absorption in Bioinspired Combined TPMS-Gyroid and Walled TPMS-Gyroid Lattice Structure Manufactured via Fused Filament Fabrication (FFF)

Dawit Bogale Alemayehu, Masahiro Todoh

Subject: Engineering, Mechanical Engineering Keywords: Keywords; bio-inspired; gyroid lattice, Boolean subtraction; finite element analysis; plastic plateau; densification; energy absorption; relative density; size effect

Online: 18 March 2024 (10:39:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0170.v1

Self-Micellizing Solid Dispersion of Thymoquinone with Enhanced Biopharmaceutical and Nephroprotective Effects

Shimul Halder, Sanjida Afrose, Manik Chandra Shill, Nahid Sharmin, Patricia Prova Mollick, Madhabi Lata Shuma, Md. Abdul Muhit, S. M. Abdur Rahman

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: biopharmaceutical; nephroprotective; oral absorption; self-micellizing solid dispersion; thymoquinone.

Online: 10 January 2023 (03:09:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.0416.v1

Analysis of the Optical Properties and Electronic Structure of Semiconductors of the Cu2NiXS4 (X = Si, GE, Sn) Family as New Promising Materials for Optoelectronic Devices

Dilshod Nematov

Subject: Physical Sciences, Condensed Matter Physics Keywords: bandgap; kesterites; optical properties; solar cells; absorption coefficient; dielectric constant; photoelectric applications

Online: 4 January 2024 (15:15:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.0806.v1

In Vivo Absorption and Lymphatic Bioavailability of DHA from Microalgal Oil according to Its Physical and Chemical Form of Vectorization

Leslie Couëdelo, Stéphanie Lennon, Hélène Abrous, Ikram Chamekh, Corentin Bouju, Hugues Griffon, Carole Vaysse, Lionel Larvol, Gildas Breton

Subject: Biology And Life Sciences, Life Sciences Keywords: fatty acid vectorization; lymph; enterocyte; lipids; microalgal oil; long chain omega-3; bioavailability; PUFA absorption; chylomicrons

Online: 14 February 2024 (11:28:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.0730.v1

Ultrafast Nonlinear Optical Activities of Near-Infrared Aza-BODIPY Derivatives

Can Ren, Shuyu Xiao, Yanyan Cui, Juguang Hu, Xiaodong Lin, Tingchao He

Subject: Physical Sciences, Optics And Photonics Keywords: Near infrared emission; Aza-Bodipy derivatives; Saturable absorption; Nonlinear refraction; Two-photon absorption

Online: 23 April 2023 (02:41:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1544.v1

Graded Triply Periodic Minimal Surface Structures with Lightweight, High-Strength and Sound Absorption Produced by Laser Powder Bed Fusion

Mingkang Zhang, Chang Liu, Mingjian Deng, Yuhao Li, Jinwei Li, Di Wang

Subject: Physical Sciences, Acoustics Keywords: triply periodic minimal surface; porous structure; laser powder bed fusion; graded structure; sound absorption

Online: 25 September 2023 (04:47:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.2097.v1

Multivariate Analysis for Prediction of Splitting Tensile Strength in Concrete Paving Blocks

Vinicio Ramiro Benalcázar-Rojas, Wilman Jenny Yambay-Vallejo, Erick Patricio Herrera-Granda

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: Prediction of tensile splitting strength; quality in concrete paving blocks; density of the fresh paving block; water absorption of concrete paving blocks; weight of the fresh paving blocks

Online: 31 August 2023 (09:33:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints202309.0668.v1

Physiological Functions of Carbon Dots and Their Applications in Agriculture Production

Guohui Li, Jiwei Xu, Ke Xu

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: photosynthesis; nutrient and water absorption; abiotic stress resistance; yield; biosensor

Online: 11 September 2023 (10:11:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0894.v1

Investigation of Excited State Intramolecular Proton Transfer and Structural Dynamics in Bis-benzimidazole Derivative (BBM) Using Femtosecond Stimulated Raman Spectroscopy

Junhan Xie, Ziyu Wang, Ruixue Zhu, Jiaming Jiang, Tsu-Chien Weng, Yi Ren, Shuhua Han, Yifan Huang, Weimin Liu

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: excited state intramolecular proton transfer; structural dynamics; transient absorption; femtosecond fluorescence up-conversion; femtosecond stimulated Raman spectroscopy

Online: 25 April 2023 (07:10:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.1457.v1

A Quantitative Examination of the Efficiency of a Biogas-Based Cooling System in Rural Regions

Kenan SAKA

Subject: Engineering, Mechanical Engineering Keywords: Efficiency analysis; biogas-powered cooling system; energy and exergy analysis; small-scale plant; absorption cooling system; triple-effect; ECOP; animal species; methane content

Online: 22 May 2023 (03:43:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1352.v1

Oral Iron Absorption of Ferric Citrate Hydrate and Hepcidin-25 in Hemodialysis Patients: A Prospective, Multicenter, Observational Riona-Oral Iron Absorption Trial

Naohisa Tomosugi, Yoshitaka Koshino, Chie Ogawa, Kunimi Maeda, Noriaki Shimada, Kimio Tomita, Shoichiro Daimon, Tsutomu Shikano, Kazuyuki Ryu, Toru Takatani, Kazuya Sakamoto, Satonori Ueyama, Daisuke Nagasaku, Masato Nakamura, Shibun Ra, Masataka Nishimura, Chieko Takagi, Yoji Ishii, Noritoshi Kudo, Shinsuke Takechi, Takashi Ishizu, Takamoto Yanagawa, Masamichi Fukuda, Yutaka Nitta, Takayuki Yamaoka, Taku Saito, Suzuko Imayoshi, Momoyo Omata, Joji Oshima, Akira Onozaki, Hiroaki Ichihashi, Yasuhisa Matsushima, Hisahito Takae, Ryoichi Nakazawa, Koichi Ikeda, Masato Tsuboi, Keiko Konishi, Shouzaburo Kato, Maki Ooura, Masaki Koyama, Tsukasa Naganuma, Makoto Ogi, Shigeyuki Katayama, Toshiaki Okumura, Shigemi Kameda, Sayuri Shirai

Subject: Medicine And Pharmacology, Urology And Nephrology Keywords: oral iron absorption; ferric citrate hydrate; hemodialysis; hepcidin-25; iron shift

Online: 18 August 2023 (11:20:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0324.v1

Porous Gold Nanoparticles: Thermal Stability, Optical Response and Support-Free Synthesis

Laura Juhász, Zoltán Erdélyi, Csaba Cserháti

Subject: Chemistry And Materials Science, Nanotechnology Keywords: porous gold nanoparticles; plasmons, optical absorption,; dewetting, dealloying; support-free nanoparticles

Online: 5 June 2023 (13:20:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1287.v1

Innovations in Electrochemical Sensors for Lead Ion Detection: Applications in Wastewater Treatment and Cytotoxicity Assessment

Morris Kamel, Gehad Abd El-Fatah, Mohamed Zaky, Amal Zaher, Ahmed Farghali, Sarah I. Othman, Ahmed Allam, Hassan Ahmed Rudayni, Mohamed E. M. Hassouna, Rehab Mahmoud

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: lead ions (Pb+2); Zn-Fe LDH/PANI; Carbon paste electrode (CPE); differential pulse voltammetry (DPV); Zn/Mg/Fe LDH; Atomic absorption spectrophotometer (ASS); cytotoxicity

Online: 19 October 2023 (13:38:55 CEST)

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The requirement for developing tools capable of detecting and monitoring heavy metals (HMs) has recently taken on more significance due to worries about their toxic effect on human health and aquatic habitats. In this study, a simple electrochemical sensing carbon paste electrode (CPE) based on composite of Zinc/Iron layered double hydroxide (LDH) and polyaniline (PANI) was developed for the determination of lead ions in aquatic solutions. For this purpose, Zn-Fe LDH/PANI was prepared and characterized by Fourier transform infrared (FTIR), X ray diffraction (XRD), and scanning electron microscopy (SEM). Modified carbon electrode based Zn-Fe LDH/PANI was electrochemically characterized compared with unmodified electrode in FCN as a redox probe using cyclic voltammetry (CV). Thus, Zn-Fe LDH/PANI was utilized as sensing material for the electrochemical determination of lead ions using differential pulse voltammetry (DPV). Zn-Fe LDH/PANI/CPE show limits of detection (LOD) and quantification (LOQ) of 167.8 nM and 559.4 nM, respectively. Zn/Mg/Fe LDH was prepared using co-precipitation method and characterized by XRD, FTIR, SEM and BET, used for removal of Pb+2 ions. Removal process was investigated at different conditions as pH, metal ion concentrations, starting adsorbent dose at first and contact time. Zn/Mg/Fe LDH was evaluated as an effective adsorbent material for lead ions elimination in aquatic solutions, with capacity of adsorption 700 mg/g. The elimination of lead ions on Zn/Mg/Fe LDH fitted the pseudo first-order kinetics model and the isotherm was matched with Langmuir model. Studies revealed that the ideal removal conditions were pH = 5.0, an adsorbent mass of 0.05 g, and 20 ml of 50 ppm metal ion concentration at 60 min. The Zn-Fe LDH/PANI composite also showed potential anti-cancer properties against lung cancer cells (A549) while maintaining safety for normal lung fibroblast cells (WI-38). Collectively, advancements in electrochemical sensors offer promising solutions for lead ion detection, with wide-reaching applications in wastewater treatment and cytotoxicity assessment. These innovations have the potential to enhance environmental monitoring and public health safety.

Preprint ARTICLE | doi:10.20944/preprints202306.1261.v1

Angular patterns of nonlinear emission in dye water droplets stimulated by femtosecond laser pulse for LiDAR application

Yury E. Geints

Subject: Physical Sciences, Optics And Photonics Keywords: ultrashort laser pulse; water droplet; fluorescence; multiphoton absorption; plasma emission; angular diagram; remote diagnostics

Online: 16 June 2023 (16:24:57 CEST)

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Preprint REVIEW | doi:10.20944/preprints202308.0090.v1

Graphs Defined on Rings: A Review

S Madhumitha, Sudev Naduvath

Subject: Computer Science And Mathematics, Discrete Mathematics And Combinatorics Keywords: Unitary Cayley Graphs; Euler Totient Cayley Graphs; Unitary Addition Cayley Graphs; Unit Graphs; Absorption Cayley graphs; Nilpotent Cayley Graphs; Zero-divisor Cayley Graphs; Mixed unitary Cayley Graphs; Divisor Cayley Graphs; Involutory Cayley Graphs; Quadratic Residue Cayley Graphs

Online: 2 August 2023 (02:24:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1876.v1

Application of Successful EU Funds Absorption Models on Sustainable Regional Development

Marko Šostar, Vladimir Ristanović, Chamaru de Alwis

Subject: Business, Economics And Management, Business And Management Keywords: Sustainable regional development; EU funds; Development projects; Absorption

Online: 28 June 2023 (04:04:18 CEST)

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The research paper comprehensively and consistently addresses all relevant theoretical areas related to the topic and includes an extensive empirical analysis of the absorption of EU funds and their impact on the sustainable development of Croatia, Slovenia, Hungary, and Poland. The analysis aims to investigate the efficiency of the absorption of funds from the EU, the impact of these funds on regional development of countries, as well as the reasons for such impacts. The "Regional Development Model Based on EU Funds" was tested with the aim of applying the model to the Republic of Croatia, countries in the region, and other European countries to achieve a higher level of absorption of financial resources from the available EU funds. Data for the empirical analysis were collected using a highly structured survey questionnaire on a sample of 244 respondents involved in the preparation and implementation of EU-funded projects. The contribution of economic science in theoretical terms arises from the development of scientific knowledge and ideas about the importance of increasing the number of development projects that will increase the absorption of funds from the European Union, thereby increasing economic activities in Croatia and the region. The expected contribution of economic science in the applied sense is based on the formulation of the "Regional Development Model Based on EU Funds," which is based on the application of knowledge, good practices, and stakeholder experiences, considering relevant indicators from available sources. The greatest contribution is demonstrated through testing the "Regional Development Model Based on EU Funds," which is applicable to the Republic of Croatia, countries in the region, and other European countries over a longer period. Finally, research of the impact of EU funds on the regional development of recipient countries is considerably less represented and very modest, only in the "upswing" of systematic scientific research. The research aims to fill the gaps in research and encourage thinking of key stakeholders responsible for regional development, who should eventually realize the importance of defining a regional policy aimed at EU funds as a key to regional development and reducing regional disparities within countries.

Preprint ARTICLE | doi:10.20944/preprints202401.1669.v1

Shock Absorption Capacity of High-Performance Polymers for Dental Implant Prosthesis: In Vitro Study

Maria Menini, Francesca Delucchi, Francesco Bagnasco, Domenico Baldi, Luigi Canullo, Paolo Setti, Marco Migliorati, Paolo Pesce

Subject: Medicine And Pharmacology, Dentistry And Oral Surgery Keywords: dental implants; shock absorption; high-performance polymers; polyetherketoneketone

Online: 23 January 2024 (10:00:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.0965.v1

Luminescence Properties of Epitaxial Cu₂O Thin Films Electrodeposited on Metallic Substrates and Cu₂O Single Crystals

Laima Trinkler, Dajin Dai, Liuwen Chang, Mitch Ming Chi Chou, Tzu-Ying Wu, Jevgenijs Gabrusenoks, Dace Nilova, Rihards Ruska, Baiba Berzina, Ramunas Nedzinskas

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: cuprous oxide; single crystal; epitaxial thin films; electrodeposition; photoluminescence; optical absorption.

Online: 26 April 2023 (07:27:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1007.v1

Flux Growth and Characterization of Bulk InVO4 Crystals

Olesia Voloshyna, Mikhail V. Gorbunov, Daria Mikhailova, Andrey Maljuk, Silvia Seiro, Bernd Büchner

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: flux-growth; indium vanadate; XANES (X-ray absorption near edge spectroscopy); EXAFS (extended X-ray absorption fine structure)

Online: 14 September 2023 (11:43:28 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202306.1416.v1

Behavior of C₇₀ Fullerene in a Binary Mixture of Xylene and Tetrahydrofuran

Urol K Makhmanov, Shaxboz A Esanov, Dostonbek T Sidigaliev, Kayyum N Musurmonov, Bobirjon A Aslonov, Tohirjon A Chuliev

Subject: Physical Sciences, Optics And Photonics Keywords: C70 fullerene; xylene/tetrahydrofuran; self-organization; refractive index; DLS; UV-Vis absorption; nanocluster

Online: 20 June 2023 (09:35:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1265.v1

Predictive Modeling and CIGS Integration for Multi-Junction Solar Cell Efficiency Enhancement

Ziani Zakarya, Mahdad Moustafa Yassine, Baghdadli Tewfik, Sekkal Mohammed Chakib, Bessenouci Mohammed Zakaria, Ghellai Nassera

Subject: Engineering, Other Keywords: Multijunction solar cells; IIIV semiconductors; TCAD simulation; cell optimization; predictive profiling; CIGS absorbers; spectral utilization; currentvoltage characteristics; external quantum efficiency; GaAs replacement; bottom junction; thin films; high efficiency; photovoltaics; epitaxial growth; stacked junctions; light absorption

Online: 19 September 2023 (07:48:35 CEST)

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Preprint REVIEW | doi:10.20944/preprints202312.0352.v1

Recent Trends on Polymeric Foams and Porous Structures for Emi Shielding Applications

Marcelo Antunes

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: polymeric foams; porous structures; microcellular foams; 3D printing; carbon-based nanofillers; nanohybrids; EMI shielding; EM wave absorption

Online: 6 December 2023 (10:17:56 CET)

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Polymer-based (nano)composite foams, especially those having a microcellular structure, containing suitable conductive (nano)fillers, have been shown to act as good shielding materials, hence coming as promising to act as shields in electronic devices, limiting/avoiding electromagnetic interference (EMI) pollution. Nevertheless, due to their high (micro)structural complexity, related to their multiphase nature, there is still a lot of unawareness behind the shielding mechanisms acting in these materials, coming as a necessity to study their microstructure-cellular/porous structure-properties relations, especially in terms of their electrical conductivity and EMI shielding efficiency (EMI SE). To target and control the electrical conductivity through a controlled distribution/dispersion of conductive nanofillers, single or combined (nanohybrids), as there is a direct relation between electrical conductivity and EMI SE, as well as the main EMI shielding mechanisms working on the developed microcellular structure of the foams, which are expected to be absorption-dominated or absorption/multiple reflection-based, are two of the main objectives when combining polymer foaming with the addition of conductive nanofillers. The present review work considers the recent developments and trends on polymer-based foams containing conductive nanofillers, especially carbon-based such as carbon nanotubes or graphene-based materials, as well as similar porous structures created using trending technologies such as 3D printing, for EMI shielding applications. It is divided in different sections, starting with the strategy of microcellular foaming to develop polymer-based foams with enhanced EMI shielding characteristics, especially focusing on technologies and methods using supercritical CO2 (sCO2); continuing with the use of polymer foams as templates to synthesize carbon foams with improved EMI shielding performance for high use temperature applications; the recent strategy of combining different functional (nano)fillers to create hybrid nanofillers/nanohybrids to be used at lower amounts as conductive fillers in polymer foams; the control and selective distribution of the nanofillers in terms of favoring the formation of a more effective conductive network and hence promote the enhancement of the EMI SE; the very recent use of computational approaches to tailor the EMI shielding properties of composite foams; and the very trending possibility of creating cellular components with varied porous structures from these materials using 3D printing; to finish, some future perspectives are discussed.

Preprint COMMUNICATION | doi:10.20944/preprints202308.1124.v1

An Optical Micro-nano fiber Sensor Monitoring Exhaled Carbon Dioxide Gas

Tuo Chen, Yuxia Song, Xue Wang, Shiya Zhang, Jian-Jun He, Mingyu Li

Subject: Physical Sciences, Optics And Photonics Keywords: respiratory carbon dioxide; absorption theory; micro-nano fiber; optical sensor

Online: 16 August 2023 (08:54:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1219.v1

Recycling of Industrial Waste as Soil Binding Additives—Effects on Soil Mechanical and Hydraulic Properties during Its Stabilisation Prior to Road Construction

Ksawery Kuligowski, Witold Waciński, Marek Zając, Włodzimierz Urbaniak, Małgorzata Olejarczyk, Waldemar Cyske, Paweł Kazimierski, Robert Tylingo, Szymon Mania, Adam Cenian

Subject: Environmental And Earth Sciences, Soil Science Keywords: road construction; soil stabilization; soil binders; soil compressive strength; soil capillary forces; frost resistance; waste additives; industrial waste; pyrolytic wax; emulsions; soil water absorption

Online: 20 October 2023 (11:01:31 CEST)

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In road construction, before applying an asphalt or concrete surface, the ground must be compacted and stabilized. There are two basic methods of soil stabilization: in situ and in a stationary node (ex-situ). The method of performing stabilization in place (in-situ) is the most frequently used method due to its convenience and lower price. The most popular type of binder for stabilization is a hydraulic binder (most often cement and various ashes). Such stabilization is performed at a depth of 10-50 cm, achieving the desired load-bearing parameters. In order to improve them, various chemical additives for stabilization are often used, such as ion exchange compounds, additives based on sulfuric acid, additives based on vinyl polymers or even organic additives using lignosulfonates. However, the use of such additives is associated with much greater costs and environmental burden, resulting in seeking for cheaper and equally effective alternatives. The win-win situation would be for instance recycling the problematic waste-based materials that on one hand are landfilled or impossible to recycle and on the other hand cause problems for the waste producers. Therefore, an interesting issue is the production of stabilization additives from various types of waste materials. As a result of the extensive testing of various waste-based materials blends with soil, the mechanical (compressive strength after 7 and 28 days) and hydraulic (capillary rise, water absorption, frost resistance) soil properties were measured. The optimization process led to obtaining additives compositions ensuring the best strengthening and sealing properties. These were for sandy soil: Pure foil (wax emulsion), Pure foil (wax emulsion) + waste sulphuric acid, RDF from waste tires (wax emulsion), Pure foil (wax emulsion) + “by-pass” waste ash + NaOHx2 and for clayey soil: Pure foil (wax emulsion) + NaOH, Pure foil (wax emulsion) + waste sulphuric acid, Tequant, Pure foil (wax emulsion).

Preprint REVIEW | doi:10.20944/preprints202306.1136.v1

Research Status and Future Perspectives of Low Dimensional Electromagnetic Wave Absorption Materials

Huaping Xu, Tao Tang, Zengming Man, Xiaofeng Wu, Haiqiang Zhao, Xiaohui Liang, Chuanying Li

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: electromagnetic wave absorption; attenuation mechanism; low-dimensional materials

Online: 15 June 2023 (12:00:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0012.v1

Non-muscle Myosin Type-II Localization in the Mouse Intestinal Villi is Altered by B-Type Natriuretic Peptide

Anteneh Addisu, Yunus E. Dogan, Darrice Montgomery, Leeyu Addisu, Abdel A Alli

Subject: Medicine And Pharmacology, Medicine And Pharmacology Keywords: Non-Muscle Myosin; BNP; GI epithelia; Apical junctional complex; Absorption

Online: 1 May 2023 (04:09:57 CEST)

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Our prior studies have shown that B type Natriuretic Peptide (BNP) decreases absorption from the gastrointestinal (GI) tract. Since non-muscle myosin-type II (NMM-II) is known to have a role in epithelial tight junction regulation, we aimed to test whether BNP has an effect on the localization and expression of NMM-II in the intestinal villi. We treated wild type mice with a 10 ng/g intravenous bolus of BNP followed by infusion of BNP at 1ng/g/minute vs. vehicle control. The mice were then euthanized and intestinal tissue isolated and sectioned. The tissue was immune-stained for NMM-II and examined using fluorescence microscopy. The tissue section not treated with antibody to NMM-II was used as a methodological control to evaluate the non-specific binding. Scanning electron micrographic images were taken to compare structural differences between the two groups. Western blotting was performed to compare the regional protein expression of NMM-II and associated proteins including smooth muscle actin, kinesin, and E cadherin in small intestinal tissue between BNP vs. vehicle infused mice. Fluorescence microscopy revealed markedly increased localization of NMM-II at the crypts and core of intestinal villi of the jejunum, ileum and colon of BNP treated mice compared to vehicle. Transmission electron microscopy revealed that the microvilli of BNP treated mice assumed the distinctive appearance of ‘relaxed’ microvilli compared to vehicle. Such decrease in contractility was previously shown to decrease para-cellular permeability of epithelia. Our observation indicates that BNP alters the localization of NMM-II in intestinal villi and makes the intestinal villi structures assume a state of decreased permeability of the apical junctional complex. Further characterization of this process and understanding the specific mediators involved could lead to the identification of novel therapeutic targets for various disease states such as heart failure and malabsorption.

Preprint ARTICLE | doi:10.20944/preprints202312.0697.v1

Sustainable polypropylene-based composites with agro-waste fillers: thermal, morphological, mechanical properties, and dimensional stability.

Tatiana Zhiltsova, Jéssica Campos, Andreia Costa, Mónica S. A. Oliveira

Subject: Engineering, Mechanical Engineering Keywords: natural fibre-reinforced composites; olive pits; rice husk; non-destructive morphology assessment; polypropylene; short-term water absorption

Online: 11 December 2023 (11:52:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.1310.v1

Finite Element Analysis of Cold-Formed Steel Stud Wall Subjected to Blast Loading and Validation Using Artificial Neural Network and Response Surface Methodology

Vengadesh Subramanian S.A., Umamaheswari Nambiappan

Subject: Engineering, Civil Engineering Keywords: cold-formed steel; blast load; stud wall; strain energy; artificial neural network (ANN); energy absorption

Online: 20 September 2023 (04:44:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0289.v2

Numerical Analysis of SO₂ Absorption inside a Wet Scrubber

Amedeo Amoresano, Giuseppe Langella, Paolo Iodice, Silvia Roscioli

Subject: Engineering, Mechanical Engineering Keywords: Seawater scrubber; SOX; Absorption

Online: 29 April 2023 (02:47:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.1371.v1

The Influence of Geometry on the Energy Capture of a Point Absorber Wave Energy Converter in the Coast of Mexico

Alejandro Martinez Flores, Ayrton Alfonso Medina Rodríguez, Edgar Mendoza, Rodolfo Silva

Subject: Engineering, Other Keywords: Wave energy converter, heaving buoy, mild slope equation, hydrodynamic response, energy absorption.

Online: 23 February 2024 (11:14:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.1008.v1

Tunable Helmholtz Resonators using Multiple Necks

Nikolaos M. Papadakis, Georgios E. Stavroulakis

Subject: Physical Sciences, Acoustics Keywords: Helmholtz resonator; multi-neck Helmholtz resonator; sound absorber; architectural acoustics; room acoustics; musical acoustics; finite element method; sound absorption; acoustic transmission

Online: 15 September 2023 (03:59:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1397.v1

Vibrational Effects on the Acoustic Performance of Multi-Layered Micro-Perforated Metamaterials

Cédric Maury, Teresa Bravo

Subject: Engineering, Mechanical Engineering Keywords: sound absorption; micro-perforates; panels vibration; global optimization

Online: 21 August 2023 (09:49:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0371.v1

Enhanced Electromagnetic Wave Absorption Properties of FeCo-C Alloy by Exploiting Metamaterial Structure

Tang Xuan Duong, Do Khanh Tung, Bui Xuan Khuyen, Nguyen Thi Ngoc Anh, Bui Son Tung, Vu Dinh Lam, Liangyao Chen, Haiyu Zheng, YoungPak Lee

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: metamaterials; broad-band absorption; iron-cobalt alloy; electromagnetic coupling

Online: 6 June 2023 (03:56:25 CEST)

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Preprint REVIEW | doi:10.20944/preprints202308.0298.v2

Absorption of Light in Vertical III-V Semiconductor Nanowires for Solar Cell and Photodetector Applications

Nicklas Anttu

Subject: Physical Sciences, Applied Physics Keywords: III-V semiconductor; nanowire; absorption; solar cell; photodetector

Online: 17 August 2023 (07:53:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.1541.v1

Sound-Absorbing, Thermal-Insulating Material Based on Poly (methylsiloxane) Xerogel and Cellulose Nanofibers

Daiji Katsura, Tetsuya Maeda, Kazuyoshi Kanamori, Takashi Yamamoto, Joji Ohshita

Subject: Engineering, Automotive Engineering Keywords: porous material; sound absorption; thermal insulation; heat insulation; poly(methylsiloxane) xerogel; cellulose nanofiber; microstructure modeling; homogenization method

Online: 22 January 2024 (04:36:59 CET)

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Preprint REVIEW | doi:10.20944/preprints202402.0386.v1

Integrated Photonic Sensors with Enhanced Evanescent Field: Unveiling the Dynamic Interaction with the Ambient Medium

Muhammad A. Butt

Subject: Physical Sciences, Optics And Photonics Keywords: Evanescent field; photonic sensor; optical waveguide; light-matter interaction; absorption; mid-infrared.

Online: 6 February 2024 (15:36:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.0890.v1

Investigation of Broadband Optical Nonlinear Absorption and Transient Dynamics in Orange IV Containing Azobenzene

Quanhua Wu, Rui Ruan, Xingxing Li, Yujie Zhao, Yang Li, Yu Fang, Yongqiang Chen, Quanying Wu, Yinglin Song, Xingzhi Wu

Subject: Physical Sciences, Optics And Photonics Keywords: Nonlinear optics; Z-scan; Transient absorption and refraction; Pump probe

Online: 25 April 2023 (05:40:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0137.v1

Optical Window to Polarity of Electrolyte Solutions

Omar O'Mari, Valentine I. Vullev

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: Stokes’ shift; dipole; absorption; fluorescence; refractometry

Online: 3 May 2023 (10:49:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.1627.v1

Natural Gas Sweetening via Membrane-Assisted Gas Absorption. Part 1: A Hollow-Fiber Unit with MDEA-Based Absorbent

Anton Petukhov, Artem Atlaskin, Kirill Smorodin, Mariia Atlaskina, Dmitriy Mikhailovich Zarubin, Nikita S. Tsivkovsky, Sergey Kryuchkov, Anna Stepakova, Andrey Vorotyntsev, Olga Kazarina, Sergey Suvorov, Ekaterina Stepanova, Ilya Vorotyntsev

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: membrane-assisted gas absorption; natural gas processing; sweetening; gas separation; hollow fibers

Online: 21 December 2023 (08:37:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1547.v1

Electrical Conductivity, EMI Absorption Shielding Performance, Curing Process and Mechanical Properties of Rubber Composites

Ján Kruželák, Andrea Kvasničáková, Michaela Džuganová, Rastislav Dosoudil, Ivan Hudec, Henrich Krump

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: rubber; manganese-zinc ferrite; nickel-zinc ferrite; carbon black; carbon fibers; electromagnetic absorption shielding

Online: 22 January 2024 (04:29:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1014.v1

Structural and Optical Characterization of Porous NiV2O6 Films Synthesized by Nebulizer Spray Pyrolysis for Photodetector Applications

Ahmed Kotbi, Islam Radaf, Ilham Hamdi Alaoui, Anna Cantaluppi, Andreas Zeinert, Abdelilah LAHMAR

Subject: Physical Sciences, Applied Physics Keywords: NiV2O6 thin films; Porous microstructure; Absorption coefficient; Energy gap; Photodetector

Online: 18 March 2024 (10:37:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1863.v1

Adjoint Solver-Based Analysis of Mouth-Tongue Morphologies on Vapor Deposition in the Upper Airway

Mohamed Talaat, Xiuhua Si, Jinxiang Xi

Subject: Engineering, Bioengineering Keywords: morphological effect; adjoint solver; shape sensitivity; computational fluid dynamics (CFD); mu-cus-tissue layer; vapor transport; wall absorption; Acetaldehyde; Benzene

Online: 29 March 2024 (13:16:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.0803.v1

Use of Alkaline-Activated Energy Waste Raw Materials in Geopolymer Concrete

Marta Nalewajko, Michał Bołtryk

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: lightweight geopolymer concrete; aluminosilicate artificial aggregate; fly ashes; compressive strength of geopolymers; water absorption; bulk density

Online: 16 February 2024 (04:14:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.1005.v1

Measurement of the Acoustic Relaxation Absorption Spectrum of CO₂ Using an Optical Fiber DBR Laser

Kun Shen, Jixian Yuan, Min Li, Xiaoyan Wen, Haifei Lu

Subject: Physical Sciences, Optics And Photonics Keywords: acoustic relaxation absorption; gas relaxation acoustics; ultrasonic sensor; DBR fiber laser; carbon dioxide detection

Online: 27 April 2023 (02:32:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.1488.v1

Theoretical Study of Structure and Photophysics of Homologous Series of Bis(arylydene)cycloalkanones

Roman O. Starostin, Alexandra Ya. Freidzon, Sergey P. Gromov

Subject: Chemistry And Materials Science, Theoretical Chemistry Keywords: bis(arylydene)cycloalkanone dyes; photophysical properties; photochemical properties; absorption; luminescence; trans-cis isomerization; quantum chemistry; density functional theory; potential energy surface; conical intersection

Online: 21 July 2023 (08:49:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1593.v1

Comparative Simulation of Plasmonic Nanostructures: Optical Response of Periodic Metal Nanostrip and Nanodisk Arrays on Mirror

Niloofar Ebrahimzadeh Esfahani, Jaroslav Kováč, Jr., Giuseppe Maruccio, Silvia Rizzato, Soňa Kováčová

Subject: Engineering, Electrical And Electronic Engineering Keywords: Nanodisk; nanostrip; plasmonic; field enhancement; absorption; scattering cross section; extinction cross section

Online: 26 March 2024 (11:54:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.0201.v1

Improvement in the Hydrogen Storage Properties of MgH2 by Adding NaAlH4

Young Jun Kwak, Myoung Youp Song, Ki-Tae Lee

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: hydrogen storage; MgH2; NaAlH4; decomposition temperature; hydrogen absorption; release rates

Online: 3 January 2024 (07:45:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1234.v1

High-Resolution Nitrogen Dioxide Measurements from Airborne Fiber Imaging Spectrometer over Tangshan, China

Xiaoli Zhang, Liang Xi, Haijin Zhou, Wei Wang, Zhen Chang, Fuqi Si, Yu Wang

Subject: Environmental And Earth Sciences, Environmental Science Keywords: airborne; differential optical absorption spectroscopy (DOAS); imaging differential absorption spectrometer; NO2

Online: 16 January 2024 (12:34:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.2147.v1

Enhancing the Performance for Chilled Ammonia Carbon Dioxide Capture by Use of Crystallizerconfiguration: Thermodynamic Assessment

Nnadikwe johnson, Akuchie Chukwuma justin, , Onuabuchi Azunna

Subject: Engineering, Energy And Fuel Technology Keywords: CO₂; efficiency; chilled; ammonia; capturing; absorption

Online: 28 December 2023 (05:18:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.0264.v1

Optimization of the ANN model for Energy Consumption Prediction of Direct Fired Absorption Chiller for a Short-Term

Goopyo Hong, Namchul Seong

Subject: Engineering, Architecture, Building And Construction Keywords: ANN; energy consumption; optimization; direct fired absorption chiller; validation

Online: 5 September 2023 (11:28:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.0793.v1

Dynamics of Absorption and Concentration of Anthracene in Radishes

Haruki Shimazu

Subject: Environmental And Earth Sciences, Environmental Science Keywords: anthracene; radish; absorption; concentration

Online: 12 January 2024 (06:12:05 CET)

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Preprint BRIEF REPORT | doi:10.20944/preprints202211.0239.v2

Methylidyne Cavity Ring-Down Spectroscopy in a Microwave Plasma Discharge

László Nemes, Christian Parigger

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: molecular spectroscopy; diatomic molecules; cavity ring-down spectroscopy; absorption spectroscopy; methylidyne; line strength data; plasma physics; astrophysics

Online: 19 December 2022 (02:45:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.0550.v1

Techno-Economic Evaluation on Solar-Assisted Post-Combustion CO₂ Capture in Hollow Fiber Membrane Contactors

Junkun Mu, Jinpeng Bi, Yuexia Lv, Yancai Su, Wei Zhao, Hui Zhang, Tingting Du, Fuzhao Li, Hongyang Zhou

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: solar thermal energy; membrane gas absorption; hollow fiber membrane contactor; technical feasibility; economic assessment

Online: 9 April 2024 (07:19:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1593.v1

Cubic Nonlinearity of Graphene-Oxide Monolayer

Tikaram Neupane, Uma Poudyal, Bagher Tabibi, Wan-joong Kim, Felix Jaetae Seo

Subject: Physical Sciences, Optics And Photonics Keywords: One-photon; two-photon transition; Atomic layer; Nonlinear absorption; Nonlinear refraction

Online: 23 August 2023 (09:44:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.1671.v1

The Solid-Phase Transition of Carbapenem CS-023 Polymorphs and the Change of Helicity Observed in the Transition

Shinji Matsuura, Koichi Igarashi, Masayuki Azuma, Hiroshi Ooshima

Subject: Engineering, Chemical Engineering Keywords: antibiotics; carbapenem; pharmaceutical crystallization; polymorphism of carbapenem crystal; solid phase polymorphic transition; helicity change, over-absorption of water of anhydrous crystal

Online: 21 December 2023 (16:08:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.1173.v1

Dyes Confinement in the Nano Scale and Converting Poly Vinyl Alcohol to be Optical-active Polymeric Nanocomposites with High Thermal Stability

Adil Alshoaibi

Subject: Physical Sciences, Other Keywords: Zn-Al-Green Dyes Nanohybrids; PVA-Zn-Al-Dyes nanocomposite; UV–Vis absorption spectra; Band gap; Scanning electron microscopy; Thermal analyses

Online: 28 April 2023 (11:08:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0937.v1

Acoustic properties of surfaces covered by multipole resonators

Nikolay Kanev

Subject: Physical Sciences, Acoustics Keywords: acoustic metasurface; impedance; tangential impedance; monopole; dipole; linear multipole; reflection coefficient; absorption coefficient; high order impedance boundary condition (HOIBC); homogenization

Online: 15 March 2024 (14:41:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.0192.v1

Explicit Numerical Study on Dynamic Behavior of Threadbar under Impact Loading

L.Y. Marulanda, J.A. Vallejos, J.I. Velásquez

Subject: Engineering, Mining And Mineral Processing Keywords: Rockbursts; Threadbar; Dynamic testing; Numerical modelling; energy absorption

Online: 2 April 2024 (10:26:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1568.v1

Novel Testing Method for Absorbing Materials with Comparison of Efficiency and Gain

Feng Xu

Subject: Engineering, Electrical And Electronic Engineering Keywords: OTA antenna test; wave absorption; stealth material

Online: 25 September 2023 (05:14:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1208.v1

Cellulose, Rice Husk and Polyvinyl Acetate-Based Composite: Flame Retardancy and Fungi Growth Experimental Study

Sergio González-Serrud, Nacarí Marín-Calvo

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: recycled cellulose; rice husk waste; fire resistance; fungal growth; water absorption; density; natural fibers; resource sustainability; building sustainability

Online: 18 April 2024 (07:51:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1147.v1

Polarization and Incident Angle Independent Multifunctional and Multiband Tunable THz Metasurface Based on VO₂

Rehmat Iqbal, Cao Jie, Ubaid ur Rahman Qureshi, Zia Ur Rehman, Naveed Jafar

Subject: Engineering, Other Keywords: Metasurface; Terahertz (THz); Polarization Conversion; Absorption; Polarization angle; vanadium dioxide (VO₂)

Online: 17 April 2024 (13:33:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1506.v1

Validity of LiPON Conductivity Determined by Impedance Spectroscopy

Alexander Rudy, Alena Novozhilova, Julia Egorova

Subject: Electrochemistry, Chemistry And Materials Science Keywords: ; solid electrolyte; impedance spectroscopy; absorption current; electric double layer; Debye length; drift conductivity ;

Online: 23 April 2024 (09:47:23 CEST)

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