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Si-C Foam Porous-Medium Combustion Power-Generation System for Low-Calorific-Value Biomass Syngas

Journal of Thermal Science 2025年第1期34卷 206-222页

作者： YANG Jianwen CHEN Wei CAO Bingwei liu Xinhui LI Hang College of Mechanical and Aerospace Engineering Jilin University School of Mechanical and Vehicle Engineering Changchun University

Syngas produced from the gasification of organic feedstocks from biomass is one of the clean and sustainable sources of *** advantages of simple access and renewability of biomass energy can meet the energy needs of temporary power *** study presents a biomass power-generation system for vehicular *** biomass and a free-piston Stirling engine generator（FPSEG） as the primary material and prime mover,respectively,biomass energy is converted into electricity by combusting the syngas to heat the *** and key parameter design for biomass gasification and thermoelectric conversion systems within a power generation system were performed.A porous medium area was constructed using Si-C foam ceramics to obtain an energy-conversion experimental *** effects of bed height,porosity,porous-region diameter,and air-intake conditions on the power-generation performance were investigated,and optimisations were performed for the thermoelectric conversion *** rate of increase during FPSEG power generation first increased and then decreased with increasing bed height,peaking at a bed height of 40 *** increasing porous-region diameter accelerated FPSEG power generation,whereas porosity changes in the porous media did not significantly affect the rate of change during FPSEG power *** increasing air intake,the rate of increase during power generation first increased and then *** maximum change rate and the highest thermoelectric conversion efficiency of the power-generation system occurred at 9.5 m3/h and 6.5 m3/h（～45.1%）air intakes,*** the thermal inertia and combustion structure of the thermoelectric conversion system significantly increased the power-generation rate of the system,with 1.8 W/s being observed at a 9.7 m3/h air intake.

关键词： biomass combined heat and power (CHP) gasification porous media combustion power generation

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Traditional Chinese herbal extracts inducing autophagy as a novel approach in therapy of nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2017年第11期23卷 1964-1973页

作者： cong liu Jia-zhi Liao Pei-Yuan Li Division of Gastro-enterology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030Hubei ProvinceChina

Non-alcoholic fatty liver disease(NAFLD) is one of the leading causes of chronic liver diseases around the world due to the modern sedentary and food-abundant lifestyle, which is characterized by excessive fat accumulation in the liver related with causes other than alcohol abuse. It is widely acknowledged that insulin resistance, dysfunctional lipid metabolism, endoplasmic reticulum stress, oxidative stress, inflammation, and apoptosis/necrosis may all contribute to NAFLD. Autophagy is a protective self-digestion of intracellular organelles, including lipid droplets(lipophagy), in response to stress to maintain homeostasis. Lipophagy is another pathway for lipid degradation besides lipolysis. It is reported that impaired autophagy also contributes to NAFLD. Some studies have suggested that the histological characteristics of NAFLD(steatosis, lobular inflammation, and peri-sinusoid fibrosis) might be improved by treatment with traditional Chinese herbal extracts, while autophagy may be induced. This review will provide insights into the characteristics of autophagy in NAFLD and the related role/mechanisms of autophagy induced by traditional Chinese herbal extracts such as resveratrol, Lycium barbarum polysaccharides, dioscin, bergamot polyphenol fraction, capsaicin, and garlic-derived S-allylmercaptocysteine, which may inhibit the progression of NAFLD. Regulation of autophagy/lipophagy with traditional Chinese herbal extracts may be a novel approach for treating NAFLD, and the molecular mechanisms should be elucidated further in the near future.

关键词： Traditional Chinese herbal extracts Nonalcoholic fatty liver disease Autophagy

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A monolithic 3D IGZO-RRAM-SRAM-integrated architecture for robust and efficient compute-in-memory enabling equivalent-ideal device metrics

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Science China(Information Sciences) 2025年

作者： Shengzhe YAN Zhaori cong Zi WANG Zhuoyu DAI Zeyu GUO zhihang QIAN Xufan LI Xu ZHENG Chuanke CHEN Nianduan LU Chunmeng DOU Guanhua YANG Xiaoxin XU Di GENG Jinshan YUE Lingfei WANG Ling LI Ming liu Institute of Microelectronics of the Chinese Academy of Sciences University of Chinese Academy of Sciences

Abstract Compute-in-memory (CIM) based on various devices such as static random access memory (SRAM) and resistive random access memory (RRAM) and other emerging devices such as indium-gallium-zinc-oxide (IGZO) transistor, magnetoresistive RAM (MRAM), and ferroelectric RAM (FeRAM) has been explored for better performance and energy efficiency on neural networks applications. However, CIM based on a single-type device suffers a variety of non-ideal metrics to reach the simultaneous optimal accuracy, density, and energy efficiency. This work presents equivalent-ideal CIM (Eq-CIM), a monolithic 3D(M3D) IGZO-RRAM-SRAM integrated architecture for robust and efficient compute-in-memory enabling equivalent-ideal device metrics. To overcome the non-ideality (variation, endurance, temperature, etc.) of the single-type devices, system-technology co-optimization (STCO) is performed. This work highlights the non-ideality-aware functionality breakdown for robust high accuracy and simultaneous high density/efficiency, by utilizing 2T0C IGZO for temporal activation storage, RRAM for high-density weight storage, and SRAM for accurate CIM. Device-to-algorithm variation transfer is applied to analyze the system-level accuracy. We benchmark Eq-CIM architecture on CIFAR-10/ImageNet, with 5.06×storage density and 5.05×/2.45×area/energy efficiency compared with single-type-device-based CIM, and high robustness (<0.27%accuracy loss) from-40℃ to 120℃.

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“One stone, two birds”: Salt template enabling porosity engineering and single metal atom coordinating toward high-performance zinc-ion capacitors

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Journal of Energy Chemistry 2025年第1期100卷 637-645页

作者： Chunliu Zhu Huanyu Liang Ping Li Chenglong Qiu Jingyi Wu Jingwei Chen Weiqian Tian Yue Zhu zhi Li Huanlei Wang School of Materials Science and Engineering Ocean University of China Department of Chemical and Materials Engineering University of Alberta

Zinc-ion hybrid capacitors （ZIHCs） have received increasing attention as energy storage devices owing to their low cost,high safety,and environmental ***,their progress has been hampered by low energy and power density,as well as unsatisfactory long-cycle stability,mainly due to the lack of suitable electrode *** this context,we have developed manganese single atoms implanted in nitrogen-doped porous carbon nanosheets （MnSAs/NCNs） using a metal salt template method as cathodes for *** metal salt serves a dual purpose in the synthesis process:It facilitates the uniform dispersion of Mn atoms within the carbon matrix and acts as an activating agent to create the porous *** applied in ZIHCs,the MnSAs/NCNs electrode demonstrates exceptional performance,including a high capacity of 203 m Ah g-1,an energy density of 138 Wh kg-1at 68 W kg-1,and excellent cycle stability with 91%retention over 10,000 *** calculations indicate that the introduced Mn atoms modulate the local charge distribution of carbon materials,thereby improving the electrochemical *** work demonstrates the significant potential of carbon materials with metal atoms in zinc-ion hybrid capacitors,not only in enhancing electrochemical performance but also in providing new insights and methods for developing high-performance energy storage devices.

关键词： Zinc ion hybrid capacitors Cathodes Carbon materials Heteroatoms Single atoms

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Preparation of Modified Composite Nanofiltration Membrane Synergistically Using Carboxylic Multi- walled Carbon Nanotube and β-cyclodextrin

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 232-239页

作者： liu Peng MAO Junpeng FANG Yanfeng YU Yunwu CHEN Changxiu TANG Ning WAN Ye GU Yaxin liu Yunxue WANG Lihua School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China

A new modified blend ultrafiltration(UF)membrane with good hydrophilicity,high porosity and excellent anti-fouling performance was developed by using carboxylic multi-walled carbon nanotube(CMWCNT)as casting solution ***,a composite nanofiltration(NF)membrane with large water flux and good retention rate was fabricated by using the PVDF/CMWCNT blend UF membrane as the substrate,and polyvinyl alcohol(PVA),β-cyclodextrin(β-CD)and polyethylenimine(PEI)as the coating *** results show that with the appropriate addition of CMWCNT in the casting solution,the surface roughness,porosity and recovery rate of the PVDF/CMWCNT blend UF membrane is obviously *** water flux of blend UF membrane is significantly improved when the CMWCNT content increases from 0 wt%to 0.2 wt%.The water flux of blend UF membrane with 0.2 wt%CMWCNT is 162.7 L/(m^(2)·h),which is 44.3%higher than that of the pure PVDF ***β-CD content is 0.8 wt%,the retention rate of congo red by PVDF/CMWCNT/β-CD composite NF membrane reaches 98.7%,which is 28.3%higher than that of single PVA/PEI modified *** research will provide a new idea and simple method for developing novel high-performance composite NF membranes.

关键词： CMWCNT cyclodextrin nanofiltration membrane

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Resolving the developmental mechanisms of cardiac microthrombosis of SARS-CoV-2 based on single-cell transcriptome analysis

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Science China Life Sciences 2025年第1期68卷 103-115页

作者： Xizi Luo Nan Zhang Yuntao liu Beibei Du Xuan Wang Tianxu Zhao Bingqiang liu Shishun Zhao Jiazhang Qiu Guoqing Wang State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases Key Laboratory for Zoonosis Research of the Ministry of EducationCollege of Basic MedicineJilin University State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases Key Laboratory for Zoonosis Research of the Ministry of EducationCollege of Veterinary MedicineJilin University College of Mathematics Jilin University Bioinformatic Lab School of MathematicsShandong University Department of Cardiology China-Japan Union HospitalJilin University

The coronavirus disease 2019（COVID-19） outbreak caused by the severe acute respiratory syndrome coronavirus-2（SARS-CoV-2） developed into a global health emergency. Systemic microthrombus caused by SARS-CoV-2 infection is a common complication in patients with COVID-19. Cardiac microthrombosis as a complication of SARS-CoV-2 infection is the primary cause of cardiac injury and death in patietns with severe COVID-19. In this study, we performed single-cell sequencing analysis of the right ventricular free wall tissue from healthy donors,patients who died during the hypercoagulable period of characteristic coagulation abnormality（CAC）, and patients who died during the fibrinolytic period of CAC. We collected 61,187 cells enriched in 24 immune cell subsets and 13 cardiac-resident cell subsets. We found that in the course of SARS-CoV-2 infected heart microthrombus, MYO1EhighRASGEF1Bhighmonocyte-derived macrophages promoted hyperactivation of the immune system and initiated the extrinsic coagulation pathway by activating chemokines CCL3, CCL5. This series of events is the main cause of cardiac microthrombi following SARS-CoV-2 infection. In a SARS-CoV-2 infected heart microthrombus, excessive immune activation is accompanied by an increase in cellular iron content, which in turn promotes oxidative stress and intensifies intercellular competition. This induces cells to alter their metabolic environment, resulting in increased sugar uptake via the glycosaminoglycan synthesis pathway. In addition, high levels of reactive oxygen species generated by elevated iron levels promote increased endogenous malondialdehyde synthesis in a subpopulation of cardiac endothelial cells. This exacerbates endothelial cell dysfunction and exacerbates the coagulopathy process.

关键词： SARS-CoV-2 cardiac microthrombosis immune hyperactivation cell competition

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高效液相色谱法测定食品用尼龙膜中己内酰胺迁移量不确定度的评定

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食品安全质量检测学报 2018年第12期9卷 3072-3076页

作者：张玉芳刘志聪赵宏强刘文涛许书珍河南产品质量监督检验院郑州450047 郑州大学材料科学与工程学院郑州450001

目的评定高效液相色谱法(high performance liquid chromatography,HPLC)测定食品用尼龙膜中己内酰胺迁移量的不确定度。方法依据GB 31604.19-2016《食品安全国家标准食品接触材料及制品己内酰胺的测定和迁移量的测定》,采用高效液相色... 详细信息

目的评定高效液相色谱法(high performance liquid chromatography,HPLC)测定食品用尼龙膜中己内酰胺迁移量的不确定度。方法依据GB 31604.19-2016《食品安全国家标准食品接触材料及制品己内酰胺的测定和迁移量的测定》,采用高效液相色谱法分析研究食品用尼龙膜水基模拟液己内酰胺迁移量不确定度的大小。并建立数学模型,从测量结果的重复性、标准溶液配制、样品预处理、标准曲线拟合、空白溶液等方面,分析不确定度的来源,然后计算合成不确定度。结果测量结果的重复性、标准溶液配制、标准曲线拟合、样品预处理的相对不确定度分别为:0.00048、0.00916、0.01082、0.00289,合成不确定度为0.01448。样品中己内酰胺迁移量测量值的平均值为10.731 mg/L,其扩展不确定度为0.31 mg/L(k=2),则测量结果和不确定度的描述为(10.73±0.31)mg/L(k=2)。结论校准曲线拟合求浓度对己内酰胺迁移量的影响最大。日常检验中要保持仪器的稳定性、高灵敏度,并对仪器及时进行检定和期间核查。

关键词：食品用尼龙膜己内酰胺迁移量不确定度高效液相色谱法

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V形槽式低倍聚光光伏光热一体化组件性能

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科学技术与工程 2018年第13期18卷 191-199页

作者：吴小龙舒碧芬连榕海汪婧杨晴川郭银刘志聪徐朝阳中山大学太阳能系统研究所广东省光伏技术重点实验室广州510006

设计搭建了一种V形槽式低倍聚光光伏光热一体化(PV/T)组件,将V形槽式聚光器与无空腔型PV/T组件结合起来。通过Trace Pro软件模拟发现,V形槽式低倍聚光PV/T系统单日制热量的增加百分比随安装角度的增大呈先增大后减小的趋势。当安装角度... 详细信息

设计搭建了一种V形槽式低倍聚光光伏光热一体化(PV/T)组件,将V形槽式聚光器与无空腔型PV/T组件结合起来。通过Trace Pro软件模拟发现,V形槽式低倍聚光PV/T系统单日制热量的增加百分比随安装角度的增大呈先增大后减小的趋势。当安装角度为23°时,增强作用最明显,聚光后光热转化功率能提高8.57%。实验结果表明,安装角度23°时总发电量比原来提高了19%。通过动态调整反光铝板安装角度,发现在太阳光照强度最强时V形槽安装角度在20°~30°之间移动时,整体的聚光效率最高。V形槽式低倍聚光PV/T组件的光伏光热效率均高于原有的无空腔PV/T组件和有空腔PV/T组件,具有较大的应用价值。

关键词： V形槽式聚光器性能模拟低倍聚光器

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嵌入式系统的需求描述综述

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软件学报 2025年第1期36卷 27-46页

作者：陈小红刘少彬金芝上海市高可信计算重点实验室(华东师范大学) 高可信软件技术教育部重点实验室(北京大学) 北京大学计算机学院

随着嵌入式系统的广泛应用,其需求正变得越来越复杂,需求分析成为嵌入式系统开发的关键阶段,如何准确地建模和描述需求成为首要问题.系统地调研嵌入式系统的需求描述,并进行全面的比较分析,以便更深入地理解嵌入式系统需求的核心关注点... 详细信息

随着嵌入式系统的广泛应用,其需求正变得越来越复杂,需求分析成为嵌入式系统开发的关键阶段,如何准确地建模和描述需求成为首要问题.系统地调研嵌入式系统的需求描述,并进行全面的比较分析,以便更深入地理解嵌入式系统需求的核心关注点.首先采用系统化文献综述方法,对1979年1月–2023年11月间发表的相关文献进行识别、筛选、汇总和分析.通过自动检索和滚雪球等检索过程,筛选出150篇与主题密切相关的文献,力求文献综述的全面性.其次,从需求描述关注点、需求描述维度、需求分析要素等方面,分析现有嵌入式需求描述语言的表达能力.最后,总结现有嵌入式系统软件需求描述所面临的挑战,并针对嵌入式软件智能合成任务,提出对嵌入式系统需求描述方法表达能力的要求.

关键词：嵌入式系统需求描述需求描述语言需求分析系统需求

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硬碳负极材料储钠性能的影响因素分析

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化学试剂 2025年第1期47卷 45-50页

作者：杨耀陈平施志聪广东工业大学材料与能源学院广东广州510000 深圳市电科电源股份有限公司广东深圳518000 衡阳电科电源有限公司湖南衡阳421000

以木质素磺酸钠和酚醛树脂为前驱体,采用喷雾干燥和油浴干燥两种方法制备硬碳前驱体,前驱体在预氧化、碳化及清洗步骤后得到硬碳材料。通过扫描电子显微镜、X射线衍射、氮气吸附/脱附测试和拉曼光谱等方法探究采用不同制备方法合成的硬... 详细信息

以木质素磺酸钠和酚醛树脂为前驱体,采用喷雾干燥和油浴干燥两种方法制备硬碳前驱体,前驱体在预氧化、碳化及清洗步骤后得到硬碳材料。通过扫描电子显微镜、X射线衍射、氮气吸附/脱附测试和拉曼光谱等方法探究采用不同制备方法合成的硬碳材料在结构形貌和物相上的差别,并通过电化学测试分析所制备的硬碳材料的电化学性能。结果表明,采用喷雾干燥法合成的硬碳前驱体制备的硬碳材料具有更稳定的球形结构和较小的比表面积。作为钠离子电池负极材料,这种硬碳材料在电池中展现出更高的首次库伦效率,并且具有更稳定的循环性能。

关键词：硬碳钠离子电池负极材料喷雾干燥油浴干燥

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