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Multi-Objective Optimization Based on Life Cycle Assessment for Hybrid Solar and Biomass Combined Cooling,Heating and Power System

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Journal of Thermal Science 2024年第3期33卷 931-950页

作者： LIU Jiejie LI Yao MENG xianyang WU Jiangtao Key Laboratory of Thermo-Fluid Science and Engineering Ministry of EducationXi’an Jiaotong UniversityXi’an710049China

The complementary of biomass and solar energy in combined cooling,heating and power(CCHP)system provides an efficient solution to address the energy crisis and environmental *** work aims to propose a multi-objective optimization model based on the life cycle assessment(LCA)method for the optimal design of hybrid solar and biomass *** life-cycle process of the poly-generation system is divided into six phases to analyze energy consumption and greenhouse gas *** comprehensive performances of the hybrid system are optimized by incorporating the evaluation criteria,including environmental impact in the whole life cycle,renewable energy contribution and economic *** non-dominated sorting genetic algorithmⅡ(NSGA-Ⅱ)with the technique for order preference by similarity to ideal solution(TOPSIS)method is employed to search the Pareto frontier result and thereby achieve optimal *** developed optimization methodology is used for a case study in an industrial *** results indicate that the best performance from the optimized hybrid system is reached with the environmental impact load reduction rate(EILRR)of 46.03%,renewable energy contribution proportion(RECP)of 92.73%and annual total cost saving rate(ATCSR)of35.75%,*** comparing pollutant-eq emissions of different stages,the operation phase emits the largest pollutant followed by the phase of raw material ***,this study reveals that the proposed multi-objective optimization model integrated with LCA method delivers an alternative path for the design and optimization of more sustainable CCHP system.

关键词： combined cooling heating and power system solar-biomass multi-objective optimization life cycle assessment optimal design

Effects of BN on the Mechanical and Thermal Properties of PP/BN Composites

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Journal of Wuhan university of Technology(Materials Science) 2024年第2期39卷 345-352页

作者：陈厚振王艳芝 NAN Yu WANG Xu YUE xianyang ZHANG Yifei FAN Huiling School of Textiles Zhongyuan University of TechnologyZhengzhou 451191China Kaifeng Power Supply Company State Grid Henan Electric Power CompanyKaifeng 475000China School of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China Zhengzhou Hengtian Copper Co. Ltd.Zhengzhou 451100China

In order to explore the thermal conductivity of polypropylene(PP)/hexagonal boron nitride(BN) composites,PP composites filled with different proportions of BN were prepared through extrution compounding,injection moulding and compression *** composites were filled with BN particles of 5 and 2. μm respectively,and their mass fractions in composites were *** of BN was varied from 0 to 2.wt% in steps of 5wt%.The effects of BN filler on mechanical properties of the composites were *** thermal behaviors were studied using DSC and TGA,and the thermal conductivity was also investigated by Laser Flash Device and the Model of 3D Heat Conduction *** experimental results show that impact strength of PP/BN can be enhanced with the addition of BN,but that composites exhibit lower breaking elongation & tensile strength when compared to unfilled *** is found that mass fraction of BN influenced the final thermal stability and degree of crystallization of PP matrix,the degree of crystallization of PP with 15wt% of 2. μm BN can be improved by 2.% than neat ***,crystallization temperatures of PP composites are elevated by about 10 ℃.The thermal conductivity results demonstrate that the maximum value of the thermal conductivity is achieved from PP/BN with 2.wt% of 2. μm BN,higher than that of pure PP by 95.65%,close to the simulation one.

关键词： thermal properties polypropylene composites hexagonal boron nitride

Immune checkpoint inhibitors:breakthroughs in cancer treatment

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Cancer Biology & Medicine 2024年第6期21卷 451-472页

作者： Xueqing Kong Jinyi Zhang Shuwei Chen xianyang Wang Qing Xi Han Shen Rongxin Zhang Laboratory of Immunology and Inflammation School of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhou 510006China Department of Biology School of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhou 510006China

Over the past two decades,immunotherapies have increasingly been considered as first-line treatments for most *** such treatment is immune checkpoint blockade(ICB),which has demonstrated promising results against various solid tumors in clinical *** antibodies(mAbs)are currently available as immune checkpoint inhibitors(ICIs).These ICIs target specific immune checkpoints,including cytotoxic T-lymphocyte-associated antigen-4(CTLA-4)and programmed cell death protein 1(PD-1).Clinical trial results strongly support the feasibility of this immunotherapeutic ***,a substantial proportion of patients with cancer develop resistance or tolerance to treatment,owing to tumor immune evasion mechanisms that counteract the host immune ***,substantial research focus has been aimed at identifying additional ICIs or synergistic inhibitory receptors to enhance the effectiveness of anti-PD-1,anti-programmed cell death ligand 1(anti-PD-L1),and anti-CTLA-4 ***,several immune checkpoint molecular targets have been identified,such as T cell immunoreceptor with Ig and ITIM domains(TIGIT),mucin domain containing-3(TIM-3),lymphocyte activation gene-3(LAG-3),V-domain immunoglobulin suppressor of T cell activation(VISTA),B and T lymphocyte attenuator(BTLA),and signal-regulatory proteinα(SIRPα).Functional m Abs targeting these molecules are under ***-4,PD-1/PD-L1,and other recently discovered immune checkpoint proteins with distinct structures are at the forefront of *** review discusses these structures,as well as clinical progress in m Abs targeting these immune checkpoint molecules and their potential applications.

关键词： Immunotherapy cancer ICIs PD-1 CTLA-4

Modified NiFe-MOF with defects induced by-NH_(2.and-SH for enhanced adsorption and photocatalytic reduction of CO_(2.

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Journal of Materials Science & Technology 2024年第3期170卷 167-176页

作者： Ruting Huang Yeyin Zhang Wenqiang Li Wanxia Zhang Yong Fang Wenrui Zhang Anqi Cui Yu Ying xianyang Shi Information Materials and Intelligent Sensing Laboratory of Anhui Province Anhui Province Key Laboratory of Wetland Ecosystem Protection and RestorationSchool of Resource and Environmental EngineeringAnhui UniversityHefei230601China Key Laboratory of Nutrient Cycling Resources and Environment of Anhui Institute of Soil and FertilizerAnhui Academy of Agricultural SciencesHefei230001China

In this study,a Ni-Fe metal-organic framework modified by-NH_(2.and-SH was synthesized using a sim-ple hydrothermal process for enhancing photocatalytic CO_(2.*** expected,the N2.-NiFe(NH_(2.-BDC/H_(4)DSBDC,2.1)displayed excellent photocatalytic CO_(2.reduction activity and high CO selectivity(12.412.2.μmol g^(−1)h^(−1))under visible light irradiation(λ≥42. nm),which is 5 times that of ***,the excellent photocatalytic performance of N2.-NiFe can benefit from the rich defect trap site caused by the introduction of amino and sulfhydryl groups,accelerating charge transfer and promoting space charge separation,as supported by the photo-electrochemical *** better understand the CO_(2.adsorption mechanism,density functional theory calculations were performed,which revealed that the Niov site has more negative adsorption energy compared with the Feov *** study provides a simple strategy to establish efficient photocatalysts for CO_(2.reduction through the modification of organic ligands.

关键词： NiFe-MOF CO_(2.reduction Defect structure Photocatalytic

Exploration of the Teaching Reform of Computer Composition Principles with Ideological and Political Education at Anqing normal university

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Journal of Contemporary Educational Research 2024年第10期8卷 294-299页

作者： Liangliang Zhang Liefu Ai Xin Zheng xianyang Wang Qingfeng Tang School of Computer and Information Anqing Normal UniversityAnqing 246133Anhui ProvinceChina

The teaching mode of the Computer Composition Principles includes theoretical and practical *** present,there is a problem of inconsistency in the teaching content of the two methods in our *** this end,this paper conducts online and offline hybrid teaching based on the learning platform and the virtual simulation experiment platform,and cleverly applies ideological and political elements to theoretical and practical teaching to practice ideological and political ***,the combination of theoretical and practical teaching modes can further help students firmly grasp the core knowledge points and improve the teaching quality and level of this course.

关键词： Theoretical teaching Practical teaching Ideological and political education Online and offline

Design and testing research of LiDAR for detecting atmospheric turbulence

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Optoelectronics Letters 2024年

作者： QIU Duoyang LI xianyang YANG Hao ZHU Xiaomeng FANG Zhiyuan XU Xiang School of Advanced Manufacturing Engineering， Hefei university Anhui Provincial Engineering Technology Research Center of Intelligent Vehicle Control and Integrated Design Technology， Hefei university Science Island Branch of Graduate School， university of Science and Technology of china School of Mechanical and Energy Engineering， Ningbo Tech university Key Laboratory of Atmospheric Optics， Anhui Institute of Optics and Fine Mechanics， Chinese Academy of Sciences

Atmospheric turbulence is an important parameter affecting laser atmospheric transmission. This paper reports on a self-developed atmospheric turbulence detection LiDAR system (scanning DIM-LiDAR system). By designing and simulating the optical system of atmospheric turbulence detection LiDAR， the basic optical imaging accuracy has been determined; By designing through electronics， the delay and gating time jitter of the system are kept within a small range， ensuring the accuracy of the sampling thickness of the optical column. The comparison observation results between the scanning DIM-LiDAR system and the ultrasonic anemometer show that both have the same trend of change， and the error is small. Long term observation results indicate that the scanning DIM-LiDAR developed based on optical and electronic design can effectively detect atmospheric turbulence profiles. This article can provide theoretical and experimental basis for subsequent related research.

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Near infrared lights emission of ^(40)Ar^(16+) impacting on metal surfaces

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Science china(Physics,Mechanics & Astronomy) 2009年第7期52卷 1021-1026页

作者： ZHANG XiaoAn1,2. XIAO GuoQing2. YANG ZhiHu2. WANG Li1 & ZHAN WenLong2.1 Department of Physics, xianyang normal university, xianyang 712000,{2. 2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000,{2. Department of Physics Xianyang Normal University Xianyang China Institute of Modern Physics Chinese Academy of Sciences Lanzhou China

The highly charged ion 40Ar16+ with the velocity (kinetic energy EK=150 keV, velocity V=8.5×105 m/s) smaller than Bohr velocity (VBohr=2.9×106 m/s) was found to hove impacts on the surfaces of metals Ni, Mo, Au and Al, and the Ar atomic infrared light lines and X-rays spectra were simultaneously measured. The experimental results show that the highly charged ion that captures electrons is neutralized, and the multiply-excited hollow atom forms. The hollow atom cascade decay radiates lights from infrared to X-ray spectrum. The intensity of infrared lights shows that the metallic work functions play an important role in the neutralization process of highly charged ions during their interaction with metallic surfaces, which verifies the classical over-the-barrier model.

关键词： infrared light lines X-ray neutralization highly charged ions

基于多级注意力机制融合的电能质量扰动点分类及时间定位方法研究

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中国电机工程学报 2024年第11期44卷 4298-4310,I0010页

作者：刘宇龙崔宪阳袁丁金涛福州大学电气工程与自动化学院福建省福州市350108 智能配电网装备福建省高校工程研究中心福建省福州市350108

随着新能源渗透率的不断提高,电网所受电能质量扰动(power quality disturbances,PQD)变得更加复杂,传统方法难以准确识别扰动类型并定位扰动时间。因此,该文提出一种基于多级注意力机制融合的PQD点分类及时间定位方法。该方法以卷积神... 详细信息

随着新能源渗透率的不断提高,电网所受电能质量扰动(power quality disturbances,PQD)变得更加复杂,传统方法难以准确识别扰动类型并定位扰动时间。因此,该文提出一种基于多级注意力机制融合的PQD点分类及时间定位方法。该方法以卷积神经网络为基础建立分类模型,在预处理和模型内部分别嵌入局部特征注意力机制(local feature attention mechanism,LFAM)和双尺度注意力机制(dual-scale attention mechanism,DSAM)。其中,LFAM根据幅值包络线追踪信号的幅值变化,以加权方式增强信号波形的局部特征;DSAM则从通道和神经元两个尺度协助模型学习各维度特征的重要性。最后,模型以多类别-多输出的形式对每个采样点进行分类,并完成扰动时间定位。为了验证所提方法的有效性,该文建立含63种PQD类型的仿真数据库对模型进行测试。在30 dB白噪声环境下,该模型平均分类准确率为99.10%,时间定位误差均为毫秒级,具有更强的泛化性能和鲁棒性。同时,基于交流电源搭建硬件平台来测试模型,其平均准确率为99.03%,进一步验证了所提方法的可靠性。

关键词：电能质量扰动点分类时间定位深度学习注意力机制融合模型

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Study on Green Residential Space Design

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IJLAI Transactions on Science and Engineering

IJLAI Transactions on Science and Engineering 2024年第1期2卷 32-37页

作者： Yu Jiang Shenyang normal university No.2.3 Huanghe North Street Shenyang 110034China

With the ever-changing nature,green ecology has become an international trend of ***,the green ecological design of residential space has become the main melody of people’s *** always implement the concept of ecological and environmental protection in the design process,attach importance to the ecological effect of residential space,carry out reasonable budget and use of environmentally friendly decorative materials,reduce the waste of materials,save money and save resources at the same time,and protect the *** the same time,people began to put their hopes on the residential space design,which made the green residential space design began to *** the bold exploration and practice of designers,the design of green residential space will be endowed with more distinctive characteristics and unique *** from the concept of green design,this paper explores the method of green space design through typical analysis.

关键词： Green Residential space Haze