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High Areal Capacity and Long Cycle Life Flexible Mild Quasi-Solid-State Ag-Zn Battery with Dendrite-Free Anode

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Energy & Environmental Materials 2024年第1期7卷 34-41页

作者： Yanzhe Zhu Renbo Zhu Fandi Chen Shuo Zhang Yu-Chieh Kuo peiyuan Guan Mengyao Li Yunjian liu Zhaojun Han Tao Wan Dawei Wang Caiyun Wang Dewei Chu School of Materials Science and Engineering The University of New South WalesSydneyNew South Wales 2052Australia School of Material science and Engineering Jiangsu UniversityZhenjiang 212013China School of Chemical Engineering The University of New South WalesSydneyNew South Wales 2052Australia Intelligent Polymer Research Institute AIIMInnovation CampusUniversity of WollongongNorth Wollongong New South Wales 2522Australia

Silver-zinc(Ag-Zn)batteries are a promising battery system for flexible electronics owing to their high safety,high energy density,and stable output ***,poor cycling performance,low areal capacity,and inferior flexibility limit the practical application of Ag-Zn ***,we develop a flexible quasi-solid-state Ag-Zn battery system with superior performance by using mild electrolyte and binder-free *** foam current collector is introduced to impede the growth of Zn dendrite,and the structure of Ag cathode is engineered by electrodeposition and chloridization process to improve the areal *** novel battery demonstrates a remarkable cycle retention of 90%for 200 cycles at 3 mA cm^(-2).More importantly,this binder-free battery can afford a high capacity of 3.5 mAh cm^(-2)at 3 mA cm^(-2),an outstanding power density of 2.42 mW cm^(-2),and a maximum energy density of 3.4 mWh cm^(-2).An energy management circuit is adopted to boost the output voltage of a single battery,which can power electronic ink display and Bluetooth temperature and humidity *** developed battery can even operate under the extreme conditions,such as being bent and sealed in solid *** work offers a path for designing electrodes and electrolyte toward high-performance flexible Ag-Zn batteries.

关键词： binder-free electrodes dendrite-free flexible Ag-Zn battery mild electrolyte quasi-solid-state

Cloning of human XAF1 gene promoter and assay of its transcription activity in a variety of cell lines

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Frontiers of Medicine 2009年第2期3卷 148-152页

作者： Qiong CHEN Qing YU Yuhu SONG peiyuan Li Ying CHANG Zhijun WANG Lifeng liu Wei WU Jusheng LIN Institute of Liver Diseases Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

To investigate the regulation of tumor sup-pressor XAF1 gene expression in digestive system cancers,we studied XAF1 gene promoter transcription activity and mRNA level in digestive system cancer cell lines(human hepatoma cell line HepG2,human colon cancer cell line LoVo,and human gastric cancer cell line AGS)and nontumor cell lines(human embryonic liver cell line L02(L02 cells)and human embryonic kidney 293 cells[HEK293 cells])as controls.1395-bp-promoter fragment of XAF1 gene was ampliﬁed by polymerase chain reaction(PCR)and cloned into pGL3-basic vector and pEGFP-1 vector to assay its promoter transcription *** plasmids were transfected into a variety of cell lines by lipofectamine *** promoter transcription activity was determined by dual-luciferase report assay,and enhanced greenﬂuorescent protein(EGFP)-positive cells were detected byﬂuorescence *** expression of XAF1 mRNA in HEK293 and L02 were signiﬁcantly higher than that in any of the three digestive system cancer cell *** dual-luciferase reporter assay showed that the promoter transcription activity in digestive system tumor cell lines transfected with pGL3-XAF1p promoter was apparently lower than that of both HEK293 and L02 *** of greenﬂuorescent protein(GFP)under the control of XAF1 promoter in the three digestive system cancer cell lines was lower than that of both HEK293 and L02 *** activities of pGL3-XAF1p in the three digestive system cancer cell lines after treatment with heat stress were signiﬁcantly lower than those in the unstressed *** results suggested that remarkably down-regulated XAF1 mRNA expression in digestive system cancer cell lines may be due to loss of transcription activity of XAF1 promoter.

关键词： gene X-linked inhibitor of apoptosis protein associated factor-1(XAF1) promoter transcription regulation

MXene Lubricated Tribovoltaic Nanogenerator with High Current Output and Long Lifetime

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Nano-Micro Letters 2023年第12期15卷 36-48页

作者： Wenyan Qiao Linglin Zhou Zhihao Zhao peiyuan Yang Di liu Xiaoru liu Jiaqi liu Dongyang liu Zhong Lin Wang Jie Wang Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 100083People’s Republic of China School of Nanoscience and Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Tribovoltaic nanogenerators(TVNGs)have the characteristics of high current density,low matched impedance and continuous output,which is expected to solve the problem of power supply for small electronic ***,wear occurrence in friction interface will seriously reduce the performance of TVNGs as well as ***,we employ MXene solution as lubricate to improve output current density and lifetime of TVNG simultaneously,where a high value of 754 mA m^(-2)accompanied with a record durability of 90,000 cycles were *** comparing multiple liquid lubricates with different polarity,we show that conductive polar liquid with MXene as additive plays a crucial role in enhancing the electrical output performance and durability of ***,the universality of MXene solution is well demonstrated in various TVNGs with Cu and P-type Si,and Cu and N-GaAs as material *** work may guide and accelerates the practical application of TVNG in future.

关键词： Tribovoltaic nanogenerators Ultra-robust Interface wear Interface lubricant

Effects of Angelica sinensis extracts on lipid oxidation in fish feeds and growth performance of juvenile Jian carp(Cyprinus carpio var. Jian)

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Animal Nutrition 2019年第1期5卷 109-114页

作者： Huatao Li Dandan Yang Zhihao Li Mingquan He Fengyi Li Jun Jiang Siyi Tang peiyuan Peng Wenhao Du Yuting Ma Ying liu Key Laboratory of Sichuan Province for Conservation and Utilization of Fishes Resources in the Upper Reaches of the Yangtze River Neijiang Normal University College of Life Sciences Neijiang Normal University College of Animal Science and Technology Sichuan Agricultural University

The study was to explore the effect of the extracts of Angelica sinensis(EAs) on lipid oxidation in fish feeds compared with ethoxyquin(EQ) and the effect of dietary EAs on growth performance of carp(Cyprinus carpio var. Jian). Firstly, fish feeds were respectively added with EQ, and ethyl ether extract ethyl acetate extract(EAE), acetone extract, ethanol extract(EE) and aqueous extract(AQE) of Angelica sinensis, except for the control. The results showed that EAs and EQ inhibited lipid oxidation in fish feed(P < 0.05). Of all of the examined EAs, EAE showed the strongest protective effects against lipid oxidation(P < 0.05). Moreover, EAE at high concentrations showed a stronger effect on lipid oxidation compared with EQ(P < 0.05). Then, 7 experimental diets respectively supplemented with 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 g/kg of EAE were fed to the respective treatment groups for 30 d. Four replicates were performed for each treatment group; 20 carp(mean weight: 12.10 ± 0.13 g) were in each replicate. The result indicated that dietary EAE improved the growth performance in carp(P < 0.05). The appropriate con centration of EAE for carp growth was estimated to be 3.643 g/kg diet. Thus, EAE could be used as a natural antioxidant in feeds for Jian carp.

关键词： Angelica sinensis Extracts Ethoxyquin Lipid oxidation Growth performance

IMO第二代完整稳性骑浪/横甩评估软件研发

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中国造船 2015年第A1期56卷 22-28页

作者：封培元范佘明刘小健中国船舶工业集团公司第七〇八研究所上海200011

国际海事组织(IMO)目前正在制定的第二代完整稳性衡准将对我国船舶工业产生重大影响。针对衡准草案中的骑浪/横甩这一稳性失效模式展开了研究,参考新一代完整稳性的衡准技术框架,采用三层结构提出了一个系统的骑浪/横甩评估体系。为方... 详细信息

国际海事组织(IMO)目前正在制定的第二代完整稳性衡准将对我国船舶工业产生重大影响。针对衡准草案中的骑浪/横甩这一稳性失效模式展开了研究,参考新一代完整稳性的衡准技术框架,采用三层结构提出了一个系统的骑浪/横甩评估体系。为方便用户能更直观清晰地完成整个稳性评估过程,开发了IMO第二代完整稳性骑浪/横甩评估软件,着重对第二层衡准的评判进行了阐述与探讨,并以一条远洋围网渔船为例对软件进行了展示。所开发出的评估软件具有一定的实用价值,为国内船舶工业界应对IMO第二代完整稳性新规范要求提供了相应的技术支撑。

关键词：第二代完整稳性骑浪/横甩软件研发

Practice and Cognition of Midway VSP in High Temperature and High Pressure Field of South China Sea

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Open Journal of Geology 2018年第5期8卷 489-498页

作者： Aiqun liu peiyuan Zhu Bing liu Yunpeng Wu Bentian Ou Zhanjiang Branch of China National Offshore Oil Corporation Ltd. Zhanjiang China

Ying-Qiong Basin is a typical high-temperature and overpressure basin, which is the main battlefield of oil and gas exploration in South China Sea and has made great breakthroughs in recent years. During drilling process in high pressure, the relationship between the deep and the pressure is directly related to the drilling safety and costs. In order to improve prediction accuracy, the VSP operation is carried out through the midway, and three points have been obtained: 1) The VSP has a higher accuracy of the interface depth in certain depth range of the drill bit. 2) When the low-frequency trend prediction is accurate before the drill bit, interval velocity of the VSP inversion is consistent with the formation velocity. 3) The VSP pressure forecast is based on the inversion layer velocity and under-compaction pressure. If the velocity prediction is not accurate, the pressure forecast must be erroneous. If the pressure has other sources, the formation pressure is not accurate even if the inversion velocity is accurate. The application scope and exploration effect of midway VSP operation are summarized and applied to Ledong 10-1 block in Yinggehai basin, which realize the breakthrough in the field of high temperature overpressure and provide the basis for other similar exploration areas to do VSP operation.

关键词： High Temperature and High Pressure Well Midway VSP Interval Velocity Inversion Low Frequency Trend Pressure Prediction

骑浪/横甩稳性失效评估软件开发及样船计算研究

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中国造船 2016年第1期57卷 160-168页

作者：封培元范佘明刘小健中国船舶及海洋工程设计研究院上海200011 喷水推进技术国防重点实验室上海200011 上海市船舶工程重点实验室上海200011

论文针对国际海事组织(IMO)目前正在制定的第二代完整稳性衡准中的骑浪/横甩稳性失效模式展开研究。在详细阐述最新草案规范要求及校核流程的基础上,开发了"IMO第二代完整稳性骑浪/横甩评估软件"以方便用户更直观清晰地完成骑浪/横甩稳... 详细信息

论文针对国际海事组织(IMO)目前正在制定的第二代完整稳性衡准中的骑浪/横甩稳性失效模式展开研究。在详细阐述最新草案规范要求及校核流程的基础上,开发了"IMO第二代完整稳性骑浪/横甩评估软件"以方便用户更直观清晰地完成骑浪/横甩稳性失效模式评估。利用该软件对多艘样船进行了衡准校核,分析了草案的合理性。研究所得结论对于IMO最终确立新衡准规范具有参考价值,所开发出的评估软件可服务于船舶设计,为国内船舶工业界应对IMO第二代完整稳性的新规范要求提供了相应的技术支撑。

关键词：第二代完整稳性骑浪/横甩软件开发样船计算船舶设计

基于生物电阻抗分析的膝关节退变程度预测模型构建及评价

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中华现代护理杂志 2023年第1期29卷 7-13页

作者：王梦琪陈泓伯鲁寒王翠邹子秋梁叶田陈可欣金仕达刘沛源王宇光尚少梅北京大学护理学院北京100191 河北医科大学第四医院护理教学办公室石家庄050011 北京大学口腔医院口腔数字化医疗技术和材料国家工程实验室北京100081

目的基于生物电阻抗指标构建膝关节骨关节炎患者的膝关节退变程度预测模型,并对模型的预测能力和应用效能进行评价。方法本研究为横断面调查研究。采用便利抽样法选取2021年5—7月石家庄市裕强社区卫生服务中心参与体检的124例社区居家... 详细信息

目的基于生物电阻抗指标构建膝关节骨关节炎患者的膝关节退变程度预测模型,并对模型的预测能力和应用效能进行评价。方法本研究为横断面调查研究。采用便利抽样法选取2021年5—7月石家庄市裕强社区卫生服务中心参与体检的124例社区居家膝关节骨关节炎患者的248个膝关节为对象建立模型,根据Kellgren-Lawrence(K-L)分级系统将其分为K-L1级(19个)、K-L2级(103个)、K-L3级(96个)、K-L4级(30个)4组。通过方差分析或Kruskal-Wallis检验筛选纳入模型的指标,利用支持向量机建立膝关节退变程度预测模型,采用网格参数寻优法对模型进行优化。采用受试者工作特征(ROC)曲线下面积及敏感度、特异度、准确率、阳性预测值、阴性预测值评价模型的预测效能。结果纳入模型的指标包括年龄、合并症、合并腰/背/髋部疼痛、从事高危职业、西安大略和麦克马斯特大学骨关节炎指数(WOMAC)-疼痛、WOMAC-功能、电抗值和相位角。训练集中模型的ROC曲线下面积为0.999,预测准确率为0.920,95%置信区间为0.868~0.957;测试集中模型的ROC曲线下面积为0.833,预测准确率为0.682,95%置信区间为0.572~0.780。结论本研究构建的膝关节退变程度预测模型具有较好的预测能力且易于使用,可作为膝关节骨关节炎患者的膝关节退变程度的筛查工具。

关键词：骨关节炎,膝膝关节退变程度生物电阻抗支持向量机预测模型

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基于动态规划-遗传算法的防空部署优化模型

系统工程与电子技术 2018年第10期40卷 2249-2255页

作者：颜培远刘曙王君空军工程大学防空反导学院陕西西安710051

随着高新武器的研制和投入使用,战场环境变得越来越复杂,正确有效地进行防空部署成为防空作战的难点问题。从进攻方的角度分析影响要地防空部署的主要因素,提出将动态规划算法用于求解攻击最小危险航线,并将其融入遗传算法的适应度函数... 详细信息

随着高新武器的研制和投入使用,战场环境变得越来越复杂,正确有效地进行防空部署成为防空作战的难点问题。从进攻方的角度分析影响要地防空部署的主要因素,提出将动态规划算法用于求解攻击最小危险航线,并将其融入遗传算法的适应度函数,得到一种基于动态规划-遗传算法的防空部署优化模型。该模型可对要地防空部署进行优化,能够得到基于进攻方的最优部署方案。实验结果表明,该模型是有效可行的,为防空作战中指挥人员实施战前部署提供参考和借鉴。

关键词：防空部署优化动态规划算法遗传算法