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Journal of Materials Science & Technology 2010年第10期26卷 957-960页

作者： Ying Li Changzhen wang Zhongli Zhang jiangxin wang College of Materials and Metallurgy Northeastern University Shenyang 110004 China

The steel contains a small amount of hydrogen which will escape during the heat *** hydrogen pressure in 16MnRE steel was investigated with a hydrogen sensor,which used SrCe0.95Yb0.05O3-α proton conductor as a solid electrolyte,YHx＋YH2z as a solid state reference electrode and Ni wire as electrode constructing a hydrogen concentration cell,shown as Ni｜YHx＋YH2z ｜SrCe0.95Yb0.05O3-α ｜[H] steel ｜*** response time of sensor is less than *** relational expression of hydrogen partial pressure with temperatures was determined using two shape proton *** results showed the regularity in experimental temperature range,and the hydrogen partial pressure increased as its temperature was raised.

关键词： Hydrogen sensor Proton conductor Solid electrolyte

Al_(2)O_(3)/HfO_(2) Nanolaminate Dielectric Boosting IGZO-Based Flexible Thin-Film Transistors

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Nano-Micro Letters 2022年第12期14卷 79-90页

作者： Qiuwei Shi Izzat Aziz Jin-Hao Ciou jiangxin wang Dace Gao Jiaqing Xiong Pooi See Lee School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore School of Chemistry and Materials Science Nanjing University of Information Science and TechnologyNanjing 210044People’s Republic of China

Flexible thin-film transistors(TFTs)have attracted wide interest in the development of flexible and wearable displays or ***,the conventional high processing temperatures hinder the preparation of stable and reliable dielectric materials on flexible ***,we develop a stable laminated Al_(2)O_(3)/HfO_(2) insulator by atomic layer deposition at a relatively lower temperature of 150℃.A sputtered amorphous indium-gallium-zinc oxide(IGZO)with the stoichiometry of In_(0.37)Ga_(0.20)Zn_(0.18)O_(0.25) is used as the active channel *** flexible TFTs with bottom-gate top-contacted configuration are further fabricated on a flexible polyimide substrate with the Al_(2)O_(3)/HfO_(2) *** from the unique structural and compositional configuration in the nanolaminates consisting of amorphous Al_(2)O_(3),crystallized HfO_(2),and the aluminate Al-Hf-O phase,the as-prepared TFTs present the carrier mobilities of 9.7 cm^(2) V^(−1) s^(−1),ON/OFF ratio of-1.3×10^(6),subthreshold voltage of 0.1 V,saturated current up to 0.83 mA,and subthreshold swing of 0.256 V dec^(−1),signifying a high-performance flexible TFT,which simultaneously able to withstand the bending radius of 40 *** TFTs with nanolaminate insulator possess satisfactory humidity stability and hysteresis behavior in a relative humidity of 60-70%,a temperature of 25-30℃ *** yield of IGZO-based TFTs with the nanolaminate insulator reaches 95%.

关键词： Nanolaminate dielectric Al_(2)O_(3)/HfO_(2) Thin-film transistors Flexible electronic

Occurrence and light response of residual plastid genes in a Euglena gracilis bleached mutant strain OflB2

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Journal of Oceanology and Limnology 2020年第6期38卷 1858-1866页

作者： QIN Huan GUO Qingqing LIU Chenchen LI Fenglan ZHANG Hua CHU Zihan wang jiangxin LEI Anping Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science Shenzhen Engineering Laboratory for Marine Algal BiotechnologyGuangdong Provincial Key Laboratory for Plant EpigeneticsCollege of Life Sciences and OceanographyShenzhen UniversityShenzhen 518000China Basis International School SZ Shenzhen 518000China

Euglena gracilis is a unicellular green eukaryotic microalga that features characteristics of both plants and *** photosynthetic function of its chloroplast is easily lost under stress resulting in bleached mutants,while the physiological role of their residual plastid DNAs remains *** this study,we obtained five bleached mutants by ofloxacin(Ofl)treatment,identified 12 residual plastid genes in five bleached mutants,and determined the mRNA levels in the wild type ***(WT)and one bleached mutant(OflB2)under dark and light stimulation conditions by quantitative reverse transcribed PCR(qRTPCR).Results show that the expression of all selected plastid genes in both WT and OflB2 mutant did not change significantly in darkness,while their responses to light stimulation were *** the light stimulation conditions,half of the genes did not change significantly,while most of the other genes were down-regulated in OflB2 mutant and up-regulated in ***,the bleached mutant retains part of the plastid genome and the plastid relic is responsive to *** research will help to understand the functions of residual plastid DNA and evolution of chloroplasts.

关键词： Euglena gracilis bleached mutant residual plastid genes light response

Ultra-high temperature tolerant flexible transparent electrode with embedded silver nanowires bundle micromesh for electrical heater

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npj Flexible Electronics 2022年第1期6卷 489-497页

作者： Bowen Sun Ruixue Xu Xu Han Jing Xu wang Hong Yimeng Xu Zhiwei Fu He Zhu Xin Sun jiangxin wang Peng Cui Jingjing Chang Jiaqing Xiong Kai Qian School of Microelectronics Shandong Technology Center of Nanodevices and IntegrationShandong UniversityJinan 250100China School of Mechanical Engineering Sichuan UniversityChengdu 610041China Key Lab for Special Functional Materials of Ministry of Education School of Materials Science and EngineeringHenan UniversityKaifeng 475004China State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology Shaanxi Joint Key Laboratory of GrapheneSchool of MicroelectronicsXidian University2 South Taibai RoadXi’an 710071China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Shenzhen Research Institute of Shandong University Shenzhen 518057China

To realize high performance flexible transparent electronics with extreme environmental adaptivity,Ag nanowires(Ag NWs)electrodes should simultaneously meet the requirements of high-temperature tolerance,chemical and mechanical ***,a scalable Ag NWs bundle micro-meshes embedded in polyimide(Ag BMs/ePI)conducting film via a facile spray coating and transfer method is *** to the synergistic effect of bundle micromesh and embedded architecture,the Ag BMs/ePI electrode exhibits high thermal stability(370℃ and 400℃ under ambient and nitrogen atmosphere conditions,respectively),low sheet resistance variation(<4%),good corrosion and deformation *** an electrical heater,the Ag BMs/ePI can achieve~204℃ with the fast thermal response time of~8 s at 8 V,and exhibits good heating stability under bent *** work offers a promising platform for the emerging flexible transparent electronics to adapt extreme environments,especially for those devices which require high-temperature processing.

关键词： nanowires transparent bundle

Residual diverse ensemble for long-tailed multi-label text classification

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Science China(Information Sciences) 2024年第11期67卷 92-105页

作者： jiangxin SHI Tong WEI Yufeng LI National Key Laboratory for Novel Software Technology Nanjing University School of Artificial Intelligence Nanjing University School of Computer Science and Engineering Southeast University Key Laboratory of Computer Network and Information Integration Southeast UniversityMinistry of Education

Long-tailed multi-label text classification aims to identify a subset of relevant labels from a large candidate label set, where the training datasets usually follow long-tailed label distributions. Many of the previous studies have treated head and tail labels equally, resulting in unsatisfactory performance for identifying tail labels. To address this issue, this paper proposes a novel learning method that combines arbitrary models with two steps. The first step is the “diverse ensemble” that encourages diverse predictions among multiple shallow classifiers, particularly on tail labels, and can improve the generalization of tail *** second is the “error correction” that takes advantage of accurate predictions on head labels by the base model and approximates its residual errors for tail labels. Thus, it enables the “diverse ensemble” to focus on optimizing the tail label performance. This overall procedure is called residual diverse ensemble(RDE). RDE is implemented via a single-hidden-layer perceptron and can be used for scaling up to hundreds of thousands of labels. We empirically show that RDE consistently improves many existing models with considerable performance gains on benchmark datasets, especially with respect to the propensity-scored evaluation ***, RDE converges in less than 30 training epochs without increasing the computational overhead.

关键词： multi-label learning extreme multi-label learning long-tailed distribution multi-label text classification ensemble learning

Residual plastids of bleached mutants of Euglena gracilis and their effects on the expression of nucleus-encoded genes

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Progress in Natural Science:Materials International 2004年第3期14卷 21-25页

作者： wang jiangxin, SHI Zhixin and XU Xudong(Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China) Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China

Bleached mutants of Euglena gracilis were obtained by treatment with ofloxacin (Ofl)and streptomycin (Sm) respectively. As shown by electron microscopy, the residual plastids contain prothylakoids in an Ofl mutant, and the highly developed and tightly stacked membranous structure found in cells of two Sm mutants. Nine genes of the plastid genome were examined with PCR, showing that ribosomal protein genes and most other plastid genes were lost in all but one Sm mutant. Using differential display and RT PCR, it was shown that chloroplast degeneration could cause changes in transcription of certain nucleus encoded genes during heterotrophic growth in darkness.

关键词： Euglena gracilis bleached mutant residual plastids tightly stacked membranous structure nucleus encoded genes regulation.

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气候变化耦合海洋污染的生态毒理学研究进展

科学通报 2018年第5期63卷 521-534页

作者：董芳朱小山王江新林光辉深圳大学生命与海洋科学学院深圳518060 深圳大学光电工程学院光电子器件与系统(教育部/广东省)重点实验室深圳518060 清华大学深圳研究生院深圳518055 清华大学地球系统科学系地球系统数值模拟教育部重点实验室北京100084

工业化以来,海洋污染已成为全球性环境问题;CO_2浓度持续增加下,气候变化也给海洋环境带来了显著改变.目前,大量的研究集中在气候变化或者环境污染各自单独对海洋生物及生态系统的影响,并已取得一些广泛认可的结论.然而,现实环境中,生... 详细信息

工业化以来,海洋污染已成为全球性环境问题;CO_2浓度持续增加下,气候变化也给海洋环境带来了显著改变.目前,大量的研究集中在气候变化或者环境污染各自单独对海洋生物及生态系统的影响,并已取得一些广泛认可的结论.然而,现实环境中,生物实际处在气候变化与海洋污染的双重胁迫下,生物与生态系统受到的影响极有可能更加复杂和严峻.因此,气候变化耦合海洋污染的生态毒理学研究越来越受到关注.本文在概述气候变化与海洋污染的基础上,总结了气候变化下海洋环境的改变,特别是海水升温、酸化、低氧等对典型海洋污染物如重金属和持久性有机污染物(persistent organic pollutants,POPs)等的生物毒性的影响,分析了气候变化与海洋污染的交互作用,提出当前研究所面临的问题并展望未来的研究前景,为准确评估全球气候变化下的海洋生态风险以及促进我国全球气候变化应对提供基础.

关键词：气候变化海洋污染耦合胁迫重金属持久性有机污染物(POPs) 生物毒性

不栉进士,名姝亦文杰——王微与柳如是诗词创作之比较

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铜仁学院学报 2019年第2期21卷 86-93页

作者：汪江欣安徽大学文学院安徽合肥230601

晚明及清,是中国文学史上女性作家迭出且具有相当影响力的时期,其中以青楼才女的创作和影响尤为突出。青楼才女中以柳如是最为著名。而王微与柳如是交好,在当时与柳如是齐名,同为明清著名的女性诗词作家。二者身份相同,在明清诗词史上... 详细信息

晚明及清,是中国文学史上女性作家迭出且具有相当影响力的时期,其中以青楼才女的创作和影响尤为突出。青楼才女中以柳如是最为著名。而王微与柳如是交好,在当时与柳如是齐名,同为明清著名的女性诗词作家。二者身份相同,在明清诗词史上都有相当影响,都得到时人及后人的高度评价。我们从突出意象、主题思想和艺术风格三个方面对此二人的诗词作品加以比较,可以发现二者的创作有一些相似之处,这缘于特定的时代背景、社会环境和身份特征;同时又因生平经历、受到的影响以及个性思维的不同而导致二者创作存在很多差异。藉由对此二人诗词创作的比较研究,我们不仅可以对此二人的诗词创作有更好的认识,更可以深入了解明清女性作家文学创作的基本风貌。

关键词：王微柳如是青楼才女女性作家创作个性解放

基于四阶段DEA模型的中国环境现状效率评价

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科技和产业 2022年第2期22卷 100-105页

作者：高阳王江鑫河北经贸大学数学与统计学学院石家庄050062

社会发展中需要实时注重各个地区的环境发展问题。在已有的理论条件下,构建影响环境的指标体系,通过数据,采用四阶段DEA模型测算全国31个省区市环境效率,对所测算出来的效率值进行分析,探究部分地区的环境效率值低下的原因,并对各个省... 详细信息

社会发展中需要实时注重各个地区的环境发展问题。在已有的理论条件下,构建影响环境的指标体系,通过数据,采用四阶段DEA模型测算全国31个省区市环境效率,对所测算出来的效率值进行分析,探究部分地区的环境效率值低下的原因,并对各个省区市进行聚类整理,分析各地区环境现状影响的大致方向,为各地区的环境发展提供改进方向。研究结果表明,全国只有7个省市环境效率达标,小部分省市效率不达标是由于改善环境的实施规模并不广泛而造成的,大部分省市效率不达标是因为实施措施有问题,治理技术不适合当前治理地区,同时实施管理方面也存在问题。

关键词：环境效率四阶段DEA 环境现状聚类分析

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集胞藻缺氮驯化株的代谢组学分析

深圳大学学报（理工版） 2019年第5期36卷 564-569页

作者：胡浪刘烨蓉许伟钊王璐胡章立王江新雷安平深圳大学生命与海洋科学学院

集胞藻Synechocystis ***6803是一种非固氮蓝藻,它是重要的模式生物,可作为实验室驯化的研究材料.实验室驯化是指生物为适应人工环境而改变其遗传性状的过程.为研究生物在胁迫环境下的适应机制,以缺氮胁迫为选择压力对野生型Synechocyst... 详细信息

集胞藻Synechocystis ***6803是一种非固氮蓝藻,它是重要的模式生物,可作为实验室驯化的研究材料.实验室驯化是指生物为适应人工环境而改变其遗传性状的过程.为研究生物在胁迫环境下的适应机制,以缺氮胁迫为选择压力对野生型Synechocystis ***6803进行了长达615 d的实验室驯化,最终获得了8株缺氮驯化株.这些驯化株在缺氮条件下的比生长速率与对照株无显著差异.用气相色谱-质谱检测这些驯化株的代谢物,共检测到52种代谢物,主要为氨基酸、脂肪酸、糖类及其衍生物.根据代谢物的组成对这些藻株进行分层聚类分析,结果显示,藻株形成3个聚类,分别由比生长速率较高的驯化株、比生长速率较低的驯化株和对照株构成.实验表明,由相同方式得到的驯化株的代谢组不同,这些驯化株可能以不同的代谢模式来应对缺氮胁迫.

关键词：微生物学集胞藻蓝藻缺氮胁迫实验室驯化代谢组