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Optimal center-of-Mass Pivot Effect of Spinal Motion in Feline Galloping

Journal of Bionic engineering 2020年第5期17卷 970-977页

作者： Young Kook Kim dongwon Yun LV R&D team Electro-technology R&D CenterLS ELECTRIC Co.LtdCheongju 28437South Korea Department of Robotics Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988South Korea

In this paper,we studied the acceleration behavior of a quadruped animal during a galloping *** the development of many quadruped robotic systems has been focused on dynamic movements,it is obvious that guidance from the dynamic behavior of quadruped animals is needed for robotics *** fulfill this demand,this paper deals with analysis of the galloping motions of a domestic cat,which is well known for its excellent acceleration performance among four-legged *** on the planar motion capture environment,the movement data of a galloping feline was acquired and the dynamic motions were estimated using a spring-mass *** particular,the effects of the position and angle of the center-of-mass of the cat,angular displacement of the spine,and angular velocity of the spine were analyzed and are discussed *** this process,it was possible to understand the dynamic movement characteristics of the cat,and to understand the relationships between,and the influences of,these *** this analysis,we provide significant data applicable to the design of joint movements in quadruped robot systems.

关键词： quadrupedalism feline galloping domestic cat center-of-mass

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2,3,4-Trihydroxybenzophenone-induced cardiac and neurological toxicity: Heart-brain interaction mediated by regulation of pgam1a and pgk1 involved in glycolysis and gluconeogenesis in zebrafish

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Science of the Total Environment 2025年 974卷 179212页

作者： Xia, Lijie Stoika, rostyslav Li, Yuqing Zheng, Yuanteng Liu, Yanao Li, dong Liu, Kechun Zhang, Xiujun Shang, Xueliang Jin, Meng Shandong Province Jinan250103 China Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Jinan Shandong Province 250103 China School of Psychology and Mental Health North China University of Science and Technology Hebei Province Tangshan063210 China R&D Department Jinan Perfect Biological Technology Co. Ltd. Shandong Province Jinan250101 China Department of Regulation of Cell Proliferation and Apoptosis Institute of Cell Biology National Academy of Sciences of Ukraine Lviv Ukraine

2,3,4-trihydroxybenzophenone (2,3,4-THBP) is a benzophenone-type UV filter commonly used in sunscreens. However, the widespread application of BP-UV filters has led to an appearance of this chemical in the environment and living organisms. despite of this, there is poor understanding of the bio-toxicity of 2,3,4-THBP. Here, we investigated the adverse effects of 2,3,4-THBP in varying doses (115, 230, 460, 920, and 1840 μg/L) in zebrafish experimental model. Specifically, we assessed its impact on the cardio- and neuro-development, including pericardiac area, heart rate, as well as brain vessels and differentiation of dopaminergic and central nervous system (CNS) neurons. The expression of genes whose products are involved in cardio- and neuro-development was also monitored. It was found that 2,3,4-THBP caused heart failure (HF)-like symptoms in zebrafish embryos including pericardial edema, reduced heart rate, and yolk sac malformation. It also induced dramatic neurotoxicity, namely defective neuron differentiation, cerebrovascular loss, cognition and behavior defects. It disrupted the vascular system, leading to potentially toxic interactions between the heart and brain, further worsening the state of both organs. Notably, rNA-seq findings indicated that 2,3,4-THBP damaged the energy metabolic function via upregulating the expression of phosphoglycerate mutase 1a (pgam1a) and phosphoglycerate kinase 1 (pgk1) whose protein products are involved in regulation of glycolysis and gluconeogenesis, highlighting their role in the interplay between heart and brain. Summarizing, 2,3,4-THBP triggered cardiac and neurological toxicity, which is possibly associated with heart-brain interaction mediated by regulation of pgam1a and pgk1 involved in glycolysis and gluconeogenesis. © 2025 Elsevier B.V.

关键词： Gene expression

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Pressure swing adsorption/membrane hybrid processes for hydrogen purification with a high recovery

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Frontiers of Chemical Science and engineering 2016年第2期10卷 255-264页

作者： Baojun Li Gaohong He Xiaobin Jiang Yan dai Xuehua ruan State Key Laboratory of Fine Chemicals R&D Center of Membrane Science and Technology School of Chemical Engineering Dalian University of Technology Dalian 116012 China

Hydrogen was recovered and purified from coal gasification-produced syngas using two kinds of hybrid processes： a pressure swing adsorption （PSA）- membrane system （a PSA unit followed by a membrane separation unit） and a membrane-PSA system （a mem- brane separation unit followed by a PSA unit）. The PSA operational parameters were adjusted to control the product purity and the membrane operational parameters were adjusted to control the hydrogen recovery so that both a pure hydrogen product （〉 99.9%） and a high recovery （〉 90%） were obtained simultaneously. The hybrid hydrogen purification processes were simulated using HYSYS and the processes were evaluated in terms of hydrogen product purity and hydrogen recovery. For comparison, a PSA process and a membrane separation process were also used individually for hydrogen purifica- tion. Neither process alone produced high purity hydrogen with a high recovery. The PSA-membrane hybrid process produced hydrogen that was 99.98% pure with a recovery of 91.71%, whereas the membrane-PSA hybrid process produced hydrogen that was 99.99% pure with a recovery of 91.71%. The PSA-membrane hybrid process achieved higher total H2 recoveries than the membrane-PSA hybrid process under the same H2 recovery of membrane separation unit. Meanwhile, the membrane-PSA hybrid process achieved a higher total H2 recovery （97.06%） than PSA-membrane hybrid process （94.35%） at the same H2 concentration of PSA feed gas （62.57%）.

关键词： hydrogen purification PSA membrane separation hybrid process

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Spontaneous Formation and Oxidation of Metal-Phenolic Networks by Zinc Oxide: Expanding Photoprotection and Suppressing Photoreactivity

SSRN

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SSrN 2025年

作者： Choi, Saehan rahman, rafia Tasnim Kim, Jeonga Kang, Juyeon Shin, Kyounghee Kim, Jin Woong Shim, Jongwon Nam, Yoonsung Daejeon34141 Korea Republic of Department of Applied Chemistry Dongduk Women’s University Seoul02748 Korea Republic of R&D Center Sunjin Beauty Science Co. Ltd. Seoul08588 Korea Republic of School of Chemical Engineering Sungkyunkwan University Suwon16419 Korea Republic of Department of Biological Sciences Korea Advanced Institute of Science and Technology Daejeon34141 Korea Republic of

Wide-bandgap metal-oxide nanoparticles are promising candidates for broad-spectrum sunscreens, yet their application is limited by photocatalytic activity and insufficient high-energy visible (HEV) light absorption. Here, we report a simple, scalable one-pot strategy for the spontaneous formation of a metal-phenolic network (MPN) on zinc oxide (ZnO) nanoparticles (ZnO/MPN NPs), utilizing intrinsic Zn2+ ion release from ZnO to initiate tannic acid (TA) complexation and in situ oxidation. This process forms a nanoscale MPN layer on the ZnO surface, while ZnO-mediated TA oxidation and dimerization (inspired by natural fruit browning) enhance electron delocalization, extending light absorption to the HEV region. The resulting browned MPN-coated ZnO nanoparticles (ZnO/MPN-B NPs) exhibit a ~ 3-fold increase in sun protection factor (SPF) and UVA protection factor (UVAPF) compared to uncoated ZnO and unbrowned ZnO/MPN NPs. Additionally, the MPN layer effectively suppresses over 99% of photogenerated reactive oxygen species (rOS) through its intrinsic rOS scavenging properties, significantly improving photostability. Cell viability assays further demonstrate that the MPN layer mitigates photoinduced cytotoxicity, supporting the safety and biocompatibility of these hybrids. This study suggests ZnO/MPN-B NPs as eco-friendly, high-performance candidates for next-generation sunscreen formulations, offering a scalable, efficient route to address the dual challenges of photoprotection and safety in inorganic sunscreen agents. © 2025, The Authors. All rights reserved.

关键词： Light absorption

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Experimental study on durability fracture behavior and vibration modal sweep for vehicle rear axle

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Journal of Beijing Institute of technology 2013年第2期22卷 207-212页

作者：门玉琢于海波霍娜 School of Mechatronics Engineering Changchun Institute of Technology China FAW Company Limited R&D Center

In order to study the fatigue fracture behavior of the rear axle of certain China-made car, the strain loading spectrum near the rear axle fracture location is collected, the modified Neuber rule and the cyclic stress-strain hysteresis loop curve equation are used to convert the nominal strain his- tory into the local stress-strain response. The impact of mean stress on fatigue damage is corrected according to the Manson-Coffin model, and programming calculation of the fatigue damage of the fracture crack is conducted in the INFIELd software, the electromagnetic vibrators are used to sweep the vibration modal frequencies of the rear axle and car body. The enhancement test and fre- quency sweep results show that the rear axle fatigue damage mainly concentrates on the washboard road, and when the forced vibration excitation frequency is 24. 07 Hz, the vibration modal frequency of the rear axle is close to the excitation frequency of the washboard road, leading to resonance and making the rear axle subjected to large strain and fatigue damage, and then vibration fatigue fracture due to high stress concentration.

关键词： fatigue damage durability fracture vibration sweep loading spectrum forced vibra- tion

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A new type of lipophilic hydrophobic self-repairing cellulose insulating paper developed with ST-110/FAS/PTFE ternary system as coating substrate

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High Voltage 2024年第2期9卷 474-483页

作者： Zhenglin Zeng Jinshan Qin Zuhao Wang Weimin Tan Chao Tang College of Engineering and Technology Southwest UniversityChongqingChina International R&D Center for New Technologies of Smart Grid and Equipment ChongqingChina

The moisture generated by the ageing of the oil-paper insulating system can easily lead to the deterioration of the performance of the insulating *** order to alleviate the impact of moisture on the performance of the insulating paper,we developed a kind of lipophilic hydrophobic self-repairing cellulose insulating paper(new insulating paper)based on the ternary system of polytetrafluoroethylene,fluorocarbon surfactant and fluorinated alkyl silane,and accelerated thermal ageing test for 45 days at 130°C was carried *** experimental results show that the new insulating paper with excellent lipophilic property can realise hydrophobic self-repairing through heat treatment after physical *** tensile strength and elongation at break of the new insulating paper increased by 5%–8%and 6.25%–27%respectively compared with the original cellulose insulating *** the end of ageing,the relative dielectric constant and dielectric loss factor of new insulating paper are 10.4%and 9.9%lower than that of the original cel-lulose insulating paper,while the breakdown voltage is 6.8%*** acid and moisture content produced during the ageing process of the insulating oil impregnated with new insulating paper are also less,indicating that the coating can delay the ageing of the insulating paper.

关键词： coating moisture cellulose

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Comparison Between different Finite Element Analyses of Unbonded Flexible Pipe via different Modeling Patterns

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Journal of Shanghai Jiaotong university(Science) 2019年第3期24卷 357-363页

作者： PANG Guoliang CHEN Chaohe SHEN Yijun LIU Fuyong Naval Architecture and Ocean Engineering R&D Center of Guangdong Province South China University of Technology

Three kinds of models based on the same flexible pipe with 8 layers have been separately created to investigate the effects of different modeling approaches on numerical simulation results of finite element(FE)models for unbonded flexible *** the mechanical property of the unbonded flexible pipe under tension,torsion and bending load has been analyzed and compared via ABAQUS software on the basis of three created *** research shows that different modeling methods of flexible pipes make a great difference in the ***,modeling simplifications of the carcass and pressure armor have a great impact on the accuracy of the *** 3,in which the carcass is simulated by spiral isot ropic shell and other layers are Simula ted by solid element,possesses good adaptability,which has been proved by comparing the experiment data and other *** paper can offer a reference for the FE modeling methods,selection and mechanical property analysis of unbonded flexible pipe.

关键词： unbonded flexible pipe numerical simulation methods finite element(FE) analysis

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Coach Simplified Structure Modeling and Optimization Study Based on the PBM Method

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Chinese Journal of Mechanical engineering 2016年第5期29卷 1010-1018页

作者： ZHANG Miaoli rEN Jindong YIN Ying dU Jian State Key Lab of Automotive Simulation and Control Jilin University Hyundai Motor Technology & Engineering Center (China) Ltd. R&D Center FAW Group

For the coach industry, rapid modeling and efficient optimization methods are desirable for structure modeling and optimization based on simplified structures, especially for use early in the concept phase and with capabilities of accurately expressing the mechanical properties of structure and with flexible section forms. However, the present dimension-based methods cannot easily meet these requirements. To achieve these goals, the property-based modeling （PBM） beam modeling method is studied based on the PBM theory and in conjunction with the characteristics of coach structure of taking beam as the main component. For a beam component of concrete length, its mechanical characteristics are primarily affected by the section properties. Four section parameters are adopted to describe the mechanical properties of a beam, including the section area, the principal moments of inertia about the two principal axles, and the torsion constant of the section. Based on the equivalent stiffness strategy, expressions for the above section parameters are derived, and the PBM beam element is implemented in HyperMesh software. A case is realized using this method, in which the structure of a passenger coach is simplified. The model precision is validated by comparing the basic performance of the total structure with that of the original structure, including the bending and torsion stiffness and the first-order bending and torsional modal frequencies. Sensitivity analysis is conducted to choose design variables. The optimal Latin hypercube experiment design is adopted to sample the test points, and polynomial response surfaces are used to fit these points. To improve the bending and torsion stiffness and the first-order torsional frequency and taking the allowable maximum stresses of the braking and left turning conditions as constraints, the multi-objective optimization of the structure is conducted using the NSGA-II genetic algorithm on the ISIGHT platform. The result of the Paret

关键词： coach structure property-based modeling （PBM） simplification modeling multi-objective optimization

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Electrokinetic and permeation characterization of hydrolyzed polyacrylonitrile (PAN) hollow fiber ultrafiltration membrane

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Science China Chemistry 2009年第5期52卷 683-689页

作者： BAO WenXuan XU ZhenLiang YANG Hu Membrane Science and Engineering R&D Laboratory Chemical Engineering Research CenterEast China University of Science and TechnologyShanghai 200237China

PAN membrane and hydrolyzed PAN membranes with the same pore size were used to investigate the relationship between the electrokinetic property and permeation performance by streaming potential measurement and ion exchange technology. SEM and FT-Ir/ATr spectra were employed to analyze the reaction and the presence of the amide groups. The thickness of the polyacrylic acid (PAA) layer on the membrane surface measured by ion-exchange titration technology increased with the reaction time, and that on membrane hydrolyzed for 50 min could reach 10.8 nm. Streaming potential measurement was used to study the influence of the carboxylic and nitrile group on the membrane surface on their separation property. Zeta potential measured in pure water had close relationship with the permeation property. This measurement also proved that there was a maximum zeta potential between zero and the concentration tested. For the ionization or dissociation of the carboxylic group on the membrane surface, treated membranes had a more flexible zeta potential range than that of the untreated membrane in the pH range of 3-9. They were all negative in pure water and 1 g·L-1 KCl solution, while the membranes hydrolyzed for 30 min and 50min had IEPs at pH 5.5 and 6.1 in 1 g·L-1 MgCl2 solution. Special inflection points of all the membranes were observed in AlCl3 solution for the positive colloid structure of Al(OH)3.

关键词： polyacrylonitrile (PAN) zeta potential ultrafiltration hollow fiber membrane

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A review of life cycle assessment and techno-economic analysis of methanol and ethanol reforming for hydrogen production to achieve carbon credit and combat global warming

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International Journal of Hydrogen Energy 2025年 138卷 705-722页

作者： Chen, Wei-Hsin Biswas, Partha Pratim Sharma, Amit Kumar Lamba, Bhawna Yadav Chang, Jo-Shu Department of Aeronautics and Astronautics National Cheng Kung University Tainan 701 Taiwan Department of Chemical and Materials Engineering Tunghai University Taichung 407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung 411 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung 407 Taiwan College of Engineering Tunghai University Taichung 407 Taiwan Department of Chemistry Applied Sciences Cluster School of Advance Engineering and Centre for Alternate and Renewable Energy Research (CAER) R&D University of Petroleum & Energy Studies (UPES) Energy Acres Building Bidholi Uttarakhand Dehradun 248007 India School of Advanced Engineering University of Petroleum and Energy Studies (UPES) Dehradun 248007 India

This review article aims to (1) conduct a life cycle assessment (LCA) study of different thermochemical processes of methanol and ethanol reforming;(2) investigate the comparative global warming potential (GWP), environmental sustainability, and human health impacts of these processes;and (3) explore the techno-economic analysis of methanol and ethanol reforming. The methanol steam reforming (MSr) process demonstrates a GWP ranging from 17.9 to 34 kg CO_2-eq·kg⁻¹ of H₂. In contrast, ethanol steam reforming (ESr) exhibits a GWP of 1.3–12.2 kg CO_2-eq·kg⁻¹ of H₂. These processes' GWP and other environmental impacts depend on the experimental routes, feedstocks, emissions, and energy consumption considered in the inventory database. ESr exhibits lower GWP, as it benefits from CO₂ sequestration associated with ethanol production. The TEA study reveals that membrane reactor-based MSr is a cost-effective method for hydrogen production. The connection between hydrogen production and carbon credits may have socio-economic impacts, particularly in developing countries. © 2025 Hydrogen Energy Publications LLC

关键词： Ethanol reforming Global warming potential Life cycle assessment Methanol reforming Net-zero Techno-economic analysis

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