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A High StablePolyoxometalate-Based Metal-Organic Frameworkwith ABW Zeolite-Like Structure

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A High StablePolyoxometalate-Based Metal-Organic Frameworkwi...

The High Precise Optimization Algorithm and Rational Construct Study of Multi-Layered Feed-forward Neural Network

中国化学会第八届全国配位化学会议

作者： Xiao-Xin Li Jiang liu ya-Qian Lan School of Chemistry and Materials Science Nanjing Normal University

Lithium-ion batteries(LIBs) as one kind of new-type power source,accounted strong commercial development potential in energy supply of portable electronics and new energy *** for a stable material possessing both high energy density and splendid rate performance has recently aroused widely concern from ***,asteady polyoxometalate-based metal-organic framework(POMOF) with ABW zeolite-like topology ,NENU-601,was successfully ***-601 can be not only stable in air for nearly 180 days,but also it’s obviously revealed that the crystalline integrity of NENU-601 can be kept in aqueous solution in different pH values(pH=1,3,9 and 12,adjust by HCl or NaOH) for 24 hours and electrolyte for 12 *** to its structural stability and potential redox ability,under a current density of100 mA g,NENU-601 delivered reversible capacity of 770 mA h g,indicating it is an excellent material for LIBs with high and stable ***,POMOFs with zeolite framework has great potential and wide application prospect in the energy storage,which is still a long way to go.

关键词： POMOFs Zeolite-like Lithium-ion batteries

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The High Precise Optimization Algorithm and Rational Constru...

视频头脉冲试验和冷热试验对前庭疾病评估相关性及差异性分析

第26届中国控制与决策会议

作者： HOU Xiang-lin liu ya-li LI qi School of Traffic ＆ Mechanical Engineering Shenyang Jianzhu University

In this paper, a High Precise Optimization Algorithm for manipulating multi-layered feed-forward neural network is studied. Its basic principle is: defining neural network average error as objective function, weights and thresholds as design variables, through design variables rationally sorted, objective function is dynamically formed. Compared the new method with BP, the optimum step-length can be not only acquired per time computing and objective function is gradually decreased, but also oscillation phenomenon can be overcome by the new algorithm. A high precision computing program of multi-layered feed-forward neural network is programmed. Rational construct of multi-layered feed-forward neural network is analyzed by optimization. Through computing neural network of typical engineering question, its validity and application prospect is showed.

关键词： optimizations algorithm multi-layered neural network weights and threshold network rational construct analysis

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临床耳鼻咽喉头颈外科杂志 2021年第9期35卷 802-806页

作者：刘嘉胡亚汪芹丁艳李娟唐海兰中南大学湘雅二医院耳鼻咽喉头颈外科长沙410011

目的:探讨视频头脉冲试验(vHIT)与冷热试验各参数在常见周围性眩晕疾病及健康人群中的相互关系及差异性,评估其在周围性眩晕中的临床诊断价值。方法:对85例受试者(17例健康受试者、68例眩晕患者)进行分析。询问病史,并进行耳镜检查、听... 详细信息

目的:探讨视频头脉冲试验(vHIT)与冷热试验各参数在常见周围性眩晕疾病及健康人群中的相互关系及差异性,评估其在周围性眩晕中的临床诊断价值。方法:对85例受试者(17例健康受试者、68例眩晕患者)进行分析。询问病史,并进行耳镜检查、听力学检查后,再行冷热试验和vHIT检查。将vHIT参数中前庭眼反射(VOR)增益、增益不对称比(GA)与冷热试验中同侧慢相速度之和(SPVs)、半规管轻瘫值(UW)分别进行比较。并用受试者操作特征曲线(ROC曲线)计算vHIT的VOR增益值,评估两种检查方法在周围性眩晕中的临床诊断价值。结果:所有耳(n=170)中,同侧SPVs与VOR增益值呈显著正相关(r=0.568,P<0.0001);健康受试者所有耳(n=34)中,同侧SPVs与VOR增益不相关(r=-0.05,P=0.778);患侧耳(n=76)中,同侧SPVs及VOR增益呈正相关(r=0.571,P<0.0001);健侧耳(n=94)中,同侧SPVs与VOR增益呈正相关(r=0.286,P=0.005)。单侧前庭病患者患侧耳(n=60)中,VOR增益与UW呈显著负相关(r=-0.513,P<0.0001);GA与UW呈显著正相关(r=0.713,P<0.0001)。在波动性眩晕组中(n=34),患侧耳VOR增益和UW呈显著负相关(r=-0.516,P=0.002);GA和UW呈显著正相关(r=0.529,P=0.001);非波动性眩晕组中(n=26),患侧耳VOR增益与UW存在负相关(r=-0.428,P=0.029);GA与UW呈显著正相关(r=0.743,P<0.0001)。在前庭神经疾病组,患侧耳VOR增益和UW呈负相关(r=-0.462,P=0.030);GA和UW呈显著正相关(r=0.757,P<0.0001);在前庭末梢疾病组,患侧耳VOR增益与UW呈负相关(r=-0.516,P=0.002);GA与UW呈显著正相关(r=0.529,P=0.001)。孤立性显性扫视的患者组UW均值高于正常组,差异有统计学意义(P=0.006)。按UW损伤程度分级,vHIT的异常检出率差异有统计学意义(χ^(2)=17.76,P<0.05)。以冷热试验为"金标准",vHIT的VOR增益界值为0.865,上述两种检查中的参数结果有28.3%的分离。结论:vHIT和冷热试验的参数密切相关,发生孤立性显性扫视的患者UW值高,说明前庭功能损伤可能更严重。vHIT和冷热试验可能是综合评估前庭疾病的互补性检查工具。

关键词：前庭疾病视频头脉冲试验冷热试验前庭眼反射眩晕

Partial recovery of disturbed V-J pairing profiles of T-cell receptor in people living with HIV receiving long-term antiretroviral therapy

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Science China(Life Sciences) 2021年第1期64卷 152-161页

作者： Guoli Li Jiarui Li Henghui Zhang Yu Zhang Di liu Yu Hao Junyan Han juan Du liuluan Zhu Yongqin Zeng Bei Li Rui Li Chuan Song Fujie Zhang Chen Chen Hongxin Zhao Hui Zeng Institute of Infectious Diseases Beijing Ditan HospitalCapital Medical UniversityBeijing100015China Beijing Key Laboratory of Emerging Infectious Diseases Beijing100015China Clinical and Research Center of Infectious Diseases Beijing Ditan HospitalCapital Medical UniversityBeijing100015China Computational Virology Group Center for Bacteria and Virus Resources and ApplicationWuhan Institute of VirologyChinese Academy of SciencesWuhan430071China University of Chinese Academy of Sciences Beijing101408China

Chronic human immunodeficiency virus(HIV) infection not only causes a gradual loss of CD4~+T cells but also leads to a disturbance of the T cell receptor(TCR) repertoire. In people living with HIV(PLWH), monitoring TCR repertoire is challenged by the inconsistency of complementarity determining region 3(CDR3) and limited cell numbers in clinical samples. Thus, a quantitative method is necessary for monitoring the TCR repertoire in *** characterized the TCR V-J pairing profile of na?ve and memory CD4~+T cells in healthy donors, HIV-infected antiretroviral therapy(ART)-na?ve patients and long-term(over5 years) ART-experienced patients by performing TCR sequencing. We developed a V-J index with 18 parameters which were subdivided into five categories(expression coverage, cumulative percentage of the top tenth percentile, diversity, intra-individual similarity and inter-individual similarity). In ART-na?ve patients, 14 of the 18 parameters were significantly ***-term ART recovered ten parameters. The four unrecovered parameters were related to inter-individual ***, these findings indicate that long-term ART could only partially recover TCR V-J pairs and introduce newly impacted V-J pairs. Moreover, these results provide new insights into the V-J pairing of the TCR and into the disturbance of TCR repertoire in HIV infection.

关键词： acquired immune deficiency syndrome human immunodeficiency virus antiretroviral therapy T cell receptor V-J pairing

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乙型肝炎病毒感染的实验室诊断:现在与未来

中华检验医学杂志 2020年第9期43卷 849-854页

作者：傅亚刘灿欧启水福建医科大学附属第一医院福建医科大学第一临床医学院检验科福建省检验医学重点实验室福建医科大学基因诊断研究室福州350005

我国目前乙型肝炎病毒(HBV)感染的防治工作形势依然严峻。影响HBV感染的进程和结局的因素主要包括病毒和宿主两个方面。在不断挖掘HBV感染经典诊断指标如乙型肝炎表面抗原、乙型肝炎核心抗体、乙型肝炎病毒DNA等新的临床意义的同时,更... 详细信息

我国目前乙型肝炎病毒(HBV)感染的防治工作形势依然严峻。影响HBV感染的进程和结局的因素主要包括病毒和宿主两个方面。在不断挖掘HBV感染经典诊断指标如乙型肝炎表面抗原、乙型肝炎核心抗体、乙型肝炎病毒DNA等新的临床意义的同时,更要关注新的指标如乙型肝炎病毒RNA、乙型肝炎核心相关抗原等的应用价值与前景。随着组学概念的提出与技术的发展,人们开始以组学的理念关注HBV感染,并整合基因组学、代谢组学、蛋白组学等,以达到精准诊断的目标。

关键词：乙型肝炎病毒乙型肝炎临床实验室技术乙型肝炎表面抗原乙型肝炎核心抗原基因组学代谢组学

基于PIA的非均匀三次B样条曲线Hermite插值

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计算机学报 2023年第11期46卷 2463-2475页

作者：吴硕琳李亚娟邓重阳杭州电子科技大学理学院杭州310018

提出基于渐进迭代逼近(Progressive Iteration Approximation,PIA)的非均匀三次B样条曲线Hermite插值算法.首先,以给定数据点作为初始控制顶点,采用累加弦长法得到节点序列,通过构造误差向量更新控制顶点,迭代生成插值数据点的非均匀三... 详细信息

提出基于渐进迭代逼近(Progressive Iteration Approximation,PIA)的非均匀三次B样条曲线Hermite插值算法.首先,以给定数据点作为初始控制顶点,采用累加弦长法得到节点序列,通过构造误差向量更新控制顶点,迭代生成插值数据点的非均匀三次B样条曲线.当需要同时插值数据点和单位切向时,在每个节点区间上插入一个节点;当需要同时插值数据点、单位切向和曲率向量时,在每个节点区间上插入两个节点;更新初始控制顶点,进而迭代得到插值B样条曲线.理论分析表明算法是收敛的.数值算例结果说明,与均匀三次B样条曲线插值算法相比,当相邻数据点间距离变化程度越大时,该算法的收敛速度越快,在相同误差条件下迭代次数更少.

关键词：非均匀三次B样条曲线迭代算法 Hermite插值渐进迭代逼近控制顶点

Enlarged fins of Tibetan catfish provide new evidence of adaptation to high plateau

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Science China(Life Sciences) 2023年第7期66卷 1554-1568页

作者： Liandong yang Ning Sun Honghui Zeng Ying Wang Wenjun Chen Zufa Ding yang liu Jing Wang Minghui Meng yanjun Shen Jingliang Kang Xiuhui Ma Wenqi Lv juan Chen Axel Meyer Baocheng Guo Shunping He State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan430072China Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China Academy of Plateau Science and Sustainability Qinghai Normal UniversityXining810016China Hubei Engineering Research Center for Protection and Utilization of Special Biological Resources in the Hanjiang River Basin School of Life SciencesJianghan UniversityWuhan430056China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunming650223China University of Chinese Academy of Sciences Beijing100049China Department of Biology University of Konstanz78457KonstanzGermany Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming650223China

The uplift of the Tibetan Plateau significantly altered the geomorphology and climate of the Euroasia by creating large mountains and *** are more likely to be affected relative to other organisms,as they are largely restricted to river *** with the rapidly flowing water in the Tibetan Plateau,a group of catfish has evolved greatly enlarged pectoral fins with more numbers of fin-rays to form an adhesive ***,the genetic basis of these adaptations in Tibetan catfishes remains *** this study,we performed comparative genomic analyses based on the chromosome-level genome of Glyptosternum maculatum in family Sisoridae and detected some proteins with conspicuously high evolutionary rates in particular in genes involved in skeleton development,energy metabolism,and hypoxia *** found that the hoxd12a gene evolved faster and a loss-of-function assay of hoxd12a supports a potential role for this gene in shaping the enlarged fins of these Tibetan *** genes with amino acid replacements and signatures of positive selection included proteins involved in low temperature(TRMU)and hypoxia(VHL)*** assays reveal that the *** TRMU allele generates more mitochondrial ATP than the ancestral allele found in low-altitude *** assays of VHL alleles suggest that the *** allele has lower transactivation activity than the low-altitude *** findings provide a window into the genomic underpinnings of physiological adaptations that permit *** to survive in the harsh environment of the Tibetan Himalayas that mirror those that are convergently found in other vertebrates such as humans.

关键词： Glyptosternum maculatum enlarged fins adaptation Tibetan Plateau

Ambient stable FAPbI3-based perovskite solar cells with a 2D-EDAPbI4 thin capping layer

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Science China Materials 2020年第1期63卷 47-54页

作者： ya-Han Wu Yong Ding Xiao-yan liu Xi-Hong Ding Xue-Peng liu Xu Pan Song-Yuan Dai Beijing Key Laboratory of Novel Thin-Film Solar Cells North China Electric Power UniversityBeijing 102206China Key Laboratory of Photovolatic and Energy Conservation Materials Institute of Applied TechnologyHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China School of Economics and Management North China Electric Power UniversityBeijing 102206China

Two-dimensional(2D) lead halide perovskite materials are emerging as one of promising light-absorbing materials in perovskite solar cells(PSCs), which show outstanding stability and defect passivation. Unfortunately, the power conversion efficiency(PCE) of those stable 2D PSCs is still far behind that of 3D PSCs. Herein, we reported a simple in-situ growth technique for the ethylenediamine lead iodide(EDAPbI4) layer on the top of formamidinium lead iodide(FAPbI3) layer. The rationally designed layered architecture of2D-3 D perovskite film could improve the PCE of the PSCs. In addition, benefiting from the high moisture resistance and inhibited ion migration of EDAPbI4 layer, the 2D-3D-based devices showed obviously enhanced long-term stability,keeping the initial PCE value for 200 h and 90% of its initial PCE even after 500 h.

关键词： EDAPbI4 FAPbI3 2D-3D perovskite solar cell stability

公司并购的动因理论:一个基于价值视角的述评

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金融理论与实践 2010年第6期 20-24页

作者：毛雅娟米运生华南农业大学经济管理学院广东广州510642 中山大学管理学院广东广州510275

迄今为止,多数公司并购动因理论无法对毁损股东价值的并购现象作出合理解释。本文认为,基于价值视角对于并购动因问题展开探索有益于揭开并购之谜。因此,本文将西方并购动因理论重新整合为两大分支——公司并购的价值创造理论与公司并... 详细信息

迄今为止,多数公司并购动因理论无法对毁损股东价值的并购现象作出合理解释。本文认为,基于价值视角对于并购动因问题展开探索有益于揭开并购之谜。因此,本文将西方并购动因理论重新整合为两大分支——公司并购的价值创造理论与公司并购的价值毁损理论。并且,本文在梳理国内相关研究后发现,随着我国制度环境与并购市场的完善,西方成熟并购理论在我国并购问题上的适用性必将加强,尤其是公司并购的价值毁损理论尚有较大研究空间。

关键词：公司金融学公司并购并购动因价值创造价值毁损