Article
Physics, Multidisciplinary
Jialiang Yu, Sebastian Hafner, Thomas Legero, Sofia Herbers, Daniele Nicolodi, Chun Yu Ma, Fritz Riehle, Uwe Sterr, Dhruv Kedar, John M. Robinson, Eric Oelker, Jun Ye
Summary: Thermodynamically induced length fluctuations limit the sensitivity and stability of precision optical interferometers, and Al0.92Ga0.08As/GaAs crystalline mirror coatings are expected to reduce this limitation. However, new noise contributions must be carefully considered in precision interferometry experiments using similar coatings.
Article
Polymer Science
Xiaomin Sun, Jisi Chen, Yanan Yin, Huan Chen, Jinxing Wu, Zhaodongfang Gao, Chuanxi Xiong
Summary: In this study, a two-step autocatalytic deposition method was used to prepare a highly reflective Ag/PVC composite film with the introduction of Pd metal as a catalytic center. By adjusting various process parameters, the reflectivity of the composite film was improved, with a maximum reflectivity reaching 93%. The method used in this study proved to be a simple, efficient, and low-energy approach for preparing highly reflective films, highlighting the importance of optimizing process parameters for future research in this area.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Hsing-Yu Wu, Shao-Rong Huang, Chih-Hsuan Shih, Li-Jen Hsiao, Hong-Wei Chen, Ming-Chung Cheng, Jin-Cherng Hsu
Summary: This study explores a technology of forming protected enhanced high reflective Ag coatings through a combination of thermal and electron beam evaporation, achieving high reflectivity and sulfurization inhibition.
Article
Mathematics
Yu-Jing Chiu, Yi-Chung Hu, Chia-Yin Yao, Chia-Hung Yeh
Summary: In a study on the development of new products in enterprises, a research framework was developed based on literature and expert interviews. The relationships and importance of risks were determined using DEMATEL and ANP methods. The case study identified six key risks in product development projects and suggested focusing on improving project completion time as a starting point for performance improvement.
Article
Chemistry, Physical
Ying Wang, Junhui He
Summary: A novel liquid-repellent anti-smudge hybrid coating was fabricated using TEOS and DMDEOS under acid catalysis, showing advantages of high transmittance, low sliding angles, and high sliding velocity. It effectively repels contamination and bacteria adhesion, with excellent durability and mechanical properties.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Environmental Studies
Jenny Weitzman, Ramon Filgueira, Jon Grant
Summary: This study investigates the opinions and influencing factors of salmon aquaculture in rural and urban Nova Scotia. The results show that individual characteristics and perceptual variables have the most important influence on opinion, with age, environmental value orientation, salmon consumption patterns, perception of risks, and trust in government all affecting opinions. Geographic differences between urban and rural areas also play a role in shaping opinions. The study highlights the need to build public trust with decision makers and mitigate risks to foster more socially acceptable salmon aquaculture.
Article
Engineering, Marine
Jianzhou Liu, Huaiwei Zhu, Chaoxu Yang, Tian Chai
Summary: By analyzing the causes of ship collisions, maritime authorities can provide targeted safety management solutions, which is crucial for preventing ship collisions. To identify the key causal factors, a network model of ship collisions is constructed, where nodes represent the causal factors and edges represent the interrelationships. A successive safety analysis method is proposed to quantify the importance of each causal factor and identify the key factors. The validity of the model is verified using numerical cases.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Jozsefne Mara, Attila-Ede Bodnar, Laszlo Trif, Judit Telegdi
Summary: This infrared reflective coating can keep objects cooler and reduce heat, resulting in significant benefits in various applications.
APPLIED SCIENCES-BASEL
(2023)
Article
Education & Educational Research
Sofia Moya, Mar Camacho
Summary: This study aims to identify, categorize, and evaluate key factors shaping the adoption and sustainable use of mobile learning. The study found that leadership, personal character, digital literacy, pedagogical, and technological resources are the most challenging and least impactful categories in mobile learning adoption. Findings indicate that the lack of contextualization is a major limitation, but the results offer insights for further research and efficient, sustainable mobile learning adoption.
EDUCATION AND INFORMATION TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Huangjun Liu, Fajun Wang, Dongjie Yang, Junfei Ou, Alberto Baldelli
Summary: A white Portland cement based composite coating was developed with the addition of building glue, phase change microcapsules, TiO2 particles, polymethylhydrosiloxane, and SiO2 particles. The optimized coating showed stable superhydrophobicity and a significant cooling effect under simulated solar radiation. The phase change coating also prevented large fluctuation of coating surface temperature and achieved a high energy saving rate in Guangzhou, China.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Computer Science, Information Systems
Mu-Yen Chen, Jing-Rong Chang, Long-Sheng Chen, Ying-Jung Chuang
Summary: This study explores the key success factors for movie crowdfunding projects using text mining and data mining methods. By employing feature selection and support vector machine, valuable suggestions can be provided to fundraisers for increasing the success rate.
MULTIMEDIA TOOLS AND APPLICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Paul C. Uzoma, Salman Shabbir, Huan Hu, Paul C. Okonkwo, Oleksiy V. Penkov
Summary: The development of microelectronics has always been driven by reducing transistor size and increasing integration, which requires the photolithography technique for manufacturing transistors to evolve as well. The use of lithography based on beyond extreme ultraviolet radiation (BEUV) with solutions such as periodic multilayer film X-ray mirrors (PMMs) has become crucial for decreasing the working wavelength.
Article
Energy & Fuels
Wei Zhang, Tianhao Li, Erxiao Wu, Ke Chen, Shiyu Du, Wenlong Yang, Qing Huang, Xin Su, Wangqiao Chen, Ming Liu, Yujie Song
Summary: Urban heat island effects are caused by thermal radiation in the near infrared region produced by sunlight. Cooling coatings containing NIR reflective pigments can reduce heat accumulation. In this study, environmentally friendly methods were used to synthesize 4-tert-butyl phthalocyanines. The NIR reflectance of these phthalocyanines can be adjusted by modifying their structures, and the distribution of electrons in d orbitals plays a key role in determining the intensity of NIR reflectance. Among the synthesized phthalocyanines, 4-tert-butyl Cu(II) phthalocyanine showed the highest total solar reflectance (73%) and exhibited good heat resistance and weathering stability. Mixing polydimethylsiloxane and 4-tert-butyl Cu(II) phthalocyanine produced a film with a temperature difference of 7.5 degrees Celsius compared to a pure polydimethylsiloxane film in a model house study, demonstrating potential applications as cooling coatings.
Article
Cell & Tissue Engineering
Chiara Giannasi, Stefania Niada, Elena Della Morte, Sara Casati, Marica Orioli, Alice Gualerzi, Anna Teresa Brini
Summary: The study evaluated the characteristics of 3 CM samples from adipose-derived MSCs, including size and distribution of EVs, protein and lipid concentrations, demonstrating high homogeneity among samples suitable for EV retention and concentration. The study identified key ingredients and consistent levels in the ASC-CM samples, which may represent a promising quality control for clinical applications.
STEM CELLS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Paul Schmitt, Nadja Felde, Thorsten Dohring, Manfred Stollenwerk, Ingo Uschmann, Kevin Hanemann, Marie Siegler, Georg Klemm, Nancy Gratzke, Andreas Tunnermann, Stefan Schwinde, Sven Schroder, Adriana Szeghalmi
Summary: Metallic coatings, especially iridium, are crucial for infrared optical systems due to their high reflectivity and thermal stability. The properties of iridium coatings deposited by atomic layer deposition (ALD) and magnetron sputtering (MS) differ due to their different topography and microstructure.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Engineering, Environmental
Yonggang Lei, Kim Hoong Ng, Yucheng Zhu, Yingzhen Zhang, Zengxing Li, Shen Xu, Jianying Huang, Jun Hu, Zhong Chen, Weilong Cai, Yuekun Lai
Summary: In this study, a new cocatalyst design and synthesis approach was proposed. By activating VC with Mo, the hydrogen generation activity of CdS was significantly improved. The CdS/Mo(0.38)-VC(5 wt%) photocatalyst exhibited excellent photocatalytic hydrogen production rate, hydrogen production quantum efficiency, stability, and recyclability. This work provides an economic alternative for solar-derived hydrogen production by replacing precious metals.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Biomedical
Lei Yu, Yiping Sun, Yusheng Niu, Pengfei Zhang, Jun Hu, Zhong Chen, Gong Zhang, Yuanhong Xu
Summary: An atomic-dispersion Fe-doped oxygen-deficient molybdenum oxide nanozyme (ADFM) with peroxidase-like and enhanced catalase-like activity is developed for prevention of bacterial infection and promotion of wound healing. ADFM exhibits high aqueous dispersity and pH-adaptive ROS regulation, allowing it to fully exert enzyme-like activity in the wound microenvironment. In vivo experiments show that ADFM achieves efficient healing of drug-resistant bacteria-infected wounds with a wound-healing efficiency of approximately 10 mm(2) per day.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Polymer Science
Wei-Feng Sun, Wen Kwang Chern, John Chok You Chan, Zhong Chen
Summary: In this study, reactive molecular dynamics simulations were used to investigate the decomposition process of crosslinked epoxy resin under high electric field and thermal degradation conditions. The effect of active molecular species, such as nitric acid and ozone, generated by electrical partial discharges on the synergetic thermal-electrical degradation of epoxy resin was analyzed. It was found that these active products oxidize hydroxyl groups and carbon-nitrogen bridge bonds in the epoxy molecular chains, leading to accelerated decomposition and increased decomposition products.
Article
Materials Science, Multidisciplinary
Zhiqiang Li, Vincent Gill, Alexis Lambourne, Zhili Dong, Maxim Avdeev, Joo Tien Oh, Zhong Chen
Summary: The effect of heat treatment on the mechanical properties of FeCo-2V alloy was investigated. The study found that the yield strength decreases with increasing heating temperature and holding time, and decreasing cooling rate. Fast cooling improves the mechanical strength and ductility. The microstructural characteristics of the fracture surface differ between quenched and slow-cooled samples.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yucheng Zhu, Xiaofei Cao, Yuan Tan, Yao Wang, Jun Hu, Baotong Li, Zhong Chen
Summary: In this study, a two-dimensional material (space group R3 over bar m) with a negative Poisson's ratio (NPR) and a maximum NPR of -0.0846 in-plane was discovered using first-principles calculations. The NPR is mainly attributed to its unique zigzag structure and the strong interaction between Mo's 4d orbital and S's 3p orbital. Molecular dynamics simulations indicate the thermodynamic stability of this material. This research reveals the potential of layered MoS2 as a promising 2D NPR material for nanodevice applications.
Article
Chemistry, Physical
Yuexing Chen, Ming Ma, Jun Hu, Zhong Chen, Peng Jiang, Lilac Amirav, Shihe Yang, Zheng Xing
Summary: A coherent CdS(010)|CoS(010) interface was achieved by growing CoS nanoflakes onto CdS nanowires, resulting in efficient photoexcited charge carrier separation and photochemical solar-to-hydrogen conversion. This discovery provides a feasible design strategy for nanojunctions with atomic level coherency, offering great application prospects in catalysis, nanoelectronics, and more.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Xinghua Wu, Minghao Xiao, Junting Zhang, Guohuang Tan, Yutong Pan, Yuekun Lai, Zhong Chen
Summary: In this study, a stable superhydrophobic surface with pressure resistance, chemical stability, biocompatibility, and biofouling resistance was demonstrated. The surface maintained superhydrophobicity under a water pressure of 13.72 kPa for 27 days and could withstand water flush and biological attacks for over 35 days. The mechanical stability of the surface was superior to state-of-the-art coatings. The stable long-lasting underwater superhydrophobic surface is of great importance to marine applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Mechanical
Hongjian Guo, Pengxun Yan, Zhiguo Wu, Bo Li, Fuli Li, Jun Hu, Zhong Chen
Summary: The lubrication mechanisms of Nb-contained oxides were investigated using density functional theory (DFT) computation. It was found that a series of Nb-contained oxides, such as Nb2O5, AgNbO3, and NiNb2O6, were generated during the friction process of NiAl/Nb/Ag coatings as the temperature increased. The friction coefficients decreased from 0.51 to 0.54 at low temperatures to 0.24-0.27 at elevated temperature. The computational results showed that AgNbO3 and NiNb2O6 exhibited better lubrication performances than Nb2O5 due to the lower bonding energy of Ag-O and Ni-O bonds, which were more susceptible to fracture under friction force. This study contributes to understanding the high-temperature lubrication mechanisms of Nb-contained oxides.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Polymer Science
Yan Yang, Jielin Ma, Malvern Yap, Qi Wang, Wen Kwang Chern, Yi Shyh Eddy Foo, Zhong Chen
Summary: In this study, the hygrothermal aging of an epoxy composite insulation material was conducted at different temperatures and relative humidity levels. Electrical properties, including volume resistivity, electrical permittivity, dielectric loss, and breakdown strength, were measured. It was found that the IEC 60216 standard, which uses breakdown strength as a criterion, is inadequate for estimating the lifetime of the material due to the minimal changes in breakdown strength during hygrothermal aging. However, significant increases in dielectric loss correlated well with the mechanical strength-based lifetime prediction, leading to the proposal of a new criterion for determining the end of life of the material.
Article
Chemistry, Physical
Minzhi Ma, Zeai Huang, Lina Li, Wenda Zhang, Rui Guo, Ruiyang Zhang, Wenjun Fa, Chunqiu Han, Yuehan Cao, Shan Yu, Ying Zhou
Summary: By engineering the coordination environment, a Pr single-atom catalyst was developed to enhance the photogenerated electron density for efficient CO2 photoreduction to CH3OH. The optimized Pr-1-N4O2/CN catalyst exhibited significantly higher activity compared to other reference catalysts, with a 28.9 and 1.9-fold increase, promising innovative single-atom catalysts for CO2 photoreduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Yuyu Guo, Shuting Li, Dianyu Xu, Jinxi Han, Zhengqiang Xia, Sanping Chen, Jun Hu, Liping Wei, Zhong Chen, Gang Xie, Shengli Gao, Qi Yang
Summary: This study reports a strategy to regulate the surface charge distribution in carbon-based electrocatalyst to enhance its activity and stability in oxygen reduction reaction (ORR). The sample synthesized, Co9S8@CNS-S, exhibited excellent ORR performance. The improved activity was attributed to the exposed positive charge of surface carbon atoms by N, S elements doping synergistic with Co9S8 nanoparticles (NPs), and the enhanced stability was due to the suppression of H2O2 generation by the combination of carbon layer and Co9S8 NPs.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Shuai Dong, Jun Hu, Zhao Qin, Hui Li, Suhang Chen, Zhong Chen, Kangzhen Xu
Summary: A novel WO3-based composite (CuX-WO3/Biochar) was designed by doping and loading. Cu as a dopant has the advantages of producing multiple bands and inhibiting grain growth. Biochar, as a carrier, effectively inhibits the agglomeration of nanomaterials. The CuX-WO3/Biochar was applied to catalytic decomposition and laser ignition of energetic materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Mario Muralles, Joo Tien Oh, Zhong Chen
Summary: In this study, interatomic potentials for binary systems were developed using the second nearest-neighbor modified embedded-atom method (2NN MEAM) formalism. These potentials accurately reproduce essential physical properties and can be used to study multicomponent alloys and high entropy alloys, deepening our understanding of their unique properties at the atomic scale.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Chemistry, Applied
Xiaofei Cao, Siqian Xing, Duo Ma, Yuan Tan, Yucheng Zhu, Jun Hu, Yao Wang, Xi Chen, Zhong Chen
Summary: Rational design of high-performance electrocatalysts for hydrogen evolution reaction (HER) is crucial for future renewable energy systems. This study developed a multi-level screening methodology to search for stable and active dopants for CoP catalysts. Theoretical and experimental results showed that the difference in work function (Delta phi) and the d-band center (d-BC) of the doped system play important roles in regulating the adsorption free energy (Delta G(H*)) of HER. The discovery of these regulatory parameters can drive the development of high-performance ion-doped electrocatalysts for electrocatalytic water splitting.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Yingzhen Zhang, Denglong Ma, Yonggang Lei, Tianxue Zhu, Jun Hu, Yu Tang, Zhong Chen, Jianying Huang, Yuekun Lai, Zhiqun Lin
Summary: This study reports the substitution of oxygen evolution reaction (OER) with ammonia oxidation reaction (AOR) to enhance hydrogen evolution reaction (HER) efficiency. The experimental results demonstrate the important role of AOR in enhancing interfacial charge transfer and promoting active species generation. Compared to traditional OER-HER water splitting, the AOR-HER system shows a significant increase in hydrogen production.