检索结果-南通市图书馆

Flexible printed three dimensional(3D) integrated carbon nanotube complementary metal oxide semiconductor(CMOS) thin film transistors and circuits

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2024年第9期67卷 280-293页

作者： Zhaofeng chen jiaqi LI Min LI Hongxuan GUO Jianwen ZHAO SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Southeast University Printable Electronics Research Center Division of Nanodevices and Related NanomaterialsSuzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences School of Nano Technology and Nano Bionics University of Science and Technology of China

The threshold voltage modulation of carbon nanotube thin-film transistors（TFTs） and flexible three-dimensional（3D） integration circuits has become hot research topics for carbon-based electronics. In this paper, a doping-free gate electrode technology is introduced to significantly modulate the threshold voltage of polymer-sorted semiconducting single-walled carbon nanotube（sc-SWCNT） TFTs in combination with the highly effective gate-controlling ability of solid-state electrolyte thin films as the dielectrics. A systematic investigation was conducted on the impact of printed silver, evaporated silver, and evaporated aluminum（Al） gate electrodes on the threshold voltage of flexible printed bottom-gate and top-gate SWCNT TFTs. The results indicate that the SWCNT TFTs with Al gate electrodes exhibit enhancement-mode characteristics with excellent electrical properties, such as the negative threshold voltages（-0.6 V）, high Ion/Ioff（up to 10～6）, low subthreshold swing(61.4 mV · dec-1), and small hysteresis. It is attributed to either the formation of lower work function thin films（Al2O3） at the electrode/dielectric layer interfaces through the natural oxidation of the Al bottom-gate electrodes or the dipole reaction of the Al top-gate electrodes from X-ray photoelectron spectroscopy（XPS） and ultraviolet photoelectron spectroscopy（UPS） data. In addition, 3D complementary metal-oxide-semiconductor（CMOS） inverters with common gate electrodes were constructed using the resulting enhancement-mode P-type SWCNT TFTs and matched N-type SWCNT TFTs, which shows high voltage gain（34）, rail-to-rail output and high noise margins(80.04%, VDD=-1 V)as well good mechanical flexibility at low operation voltages. It demonstrates that SWCNT TFTs have great advantages for building large-scale 3D flexible integrated circuits.

关键词： three-dimensional CMOS circuits printing technology polymer-sorted semiconducting carbon nanotubes enhancement-mode thin-filmtransistors threshold voltage modulation

树种重要值、树种多样性和土壤理化性质对土壤氨基糖的影响

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

浙江农林大学学报 2024年第4期41卷 778-786页

作者：黄海燕唐慧敏金鹭施宇宋晓倩陈嘉琦贺海升张衷华唐中华东北林业大学化学化工与资源利用学院黑龙江哈尔滨150040 东北林业大学森林植物生态学教育部重点实验室黑龙江哈尔滨150040 东北林业大学林业生物制剂教育部工程研究中心黑龙江哈尔滨150040 东北林业大学黑龙江省林源活性物质生态利用重点实验室黑龙江哈尔滨150040 沈阳师范大学实验教学中心辽宁沈阳110000

【目的】土壤氨基糖是土壤微生物死亡残体的特异性标志物,对土壤碳、氮固存有重要作用。探究树种多样性和优势树种重要值对土壤氨基糖的影响机制。【方法】以东北林业大学实验林场为研究样地,采取0~20 cm的表层土壤,测定土壤葡萄糖(Glu... 详细信息

【目的】土壤氨基糖是土壤微生物死亡残体的特异性标志物,对土壤碳、氮固存有重要作用。探究树种多样性和优势树种重要值对土壤氨基糖的影响机制。【方法】以东北林业大学实验林场为研究样地,采取0~20 cm的表层土壤,测定土壤葡萄糖(Glu)、土壤半乳糖(Gal)、土壤胞壁酸(Mur)及土壤总氨基糖(TA)质量分数,计算样地内树种多样性指数和优势树种重要值,通过相关分析、冗余分析、方差分解分析研究确定影响土壤氨基糖的主要因素及其贡献程度。【结果】(1)土壤葡萄糖、土壤半乳糖、土壤胞壁酸、土壤总氨基糖质量分数与土壤全氮质量分数、土壤电导率和土壤有机碳质量分数显著正相关(P<0.05);(2)土壤葡萄糖、土壤半乳糖、土壤胞壁酸、土壤总氨基糖质量分数与黑皮油松Pinus tabuliformis ***重要值显著负相关(P<0.01);土壤葡萄糖、土壤半乳糖、土壤总氨基糖质量分数与蒙古栎Quercus mongolica重要值显著负相关(P<0.05);土壤葡萄糖、土壤总氨基糖质量分数与黄檗Phellodendron amurense、金银忍冬Lonicera maackii、胡桃楸Juglans mandshurica重要值均显著正相关(P<0.05);土壤半乳糖、土壤胞壁酸、土壤总氨基糖质量分数与梣叶槭Acer negund重要值显著正相关(P<0.05)。冗余分析发现:黑皮油松、蒙古栎不利于氨基糖积累,而黄檗、梣叶槭、金银忍冬、胡桃楸有利于土壤氨基糖的积累。(3)方差分解分析表明:树种重要值对土壤氨基糖质量分数变化的贡献程度(35.4%)显著高于树种多样性(6.4%)和土壤理化性质(17.2%)。【结论】通过增加梣叶槭、金银忍冬、黄檗和胡桃楸等树种来为维持较高的树种多样性,能更好地促进人工林土壤氨基糖的积累,进而改善土壤碳氮固存能力。

关键词：树种多样性树种重要值土壤理化性质土壤氨基糖

Ir single atoms on NiFeZn-LDH matrix for exceptional oxygen evolution reaction

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第8期17卷 7039-7044页

作者： Muhammad Israr Muhammad Humayun jiaqi Zhang Khadim Shah Xin Tan chen chen Yadong Li Department of Chemistry Tsinghua UniversityBeijing 100084China Energy Water and Environment LabCollege of Humanities and SciencePrince Sultan UniversityRiyadh11586Saudi Arabia

To address the sluggish kinetics of the oxygen evolution reaction(OER),a potential approach is to rationally design and fabricate extremely effective single atom catalysts(SACs).Using an appropriate matrix to stabilize single-atom active centers with optimal geometric and electronic structures is crucial for enhancing catalytic ***,we report the design and fabrication of Ir single atoms on NiFeZn layered double hydroxide(Ir-SAC/NiFeZn-LDH)electrocatalyst for highly efficient and stable *** is investigated that the NiFeZn support exhibits abundant defect sites and unsaturated coordination *** sites function to anchor and stabilize single Ir single atoms on the *** strong synergetic electronic interaction between the Ir single atoms and the NiFeZn matrix resulted in remarkable OER performance of the as-fabricated Ir-SAC/NiFeZn *** a loading Ir content of 1.09 wt.%,this catalyst demonstrates a highly stable OER activity,with an overpotential of 196 mV at 10 mA·cm^(−2) and a small Tafel slope of 35 mV·dec^(−1) for the OER in a 1 M KOH *** results significantly surpass the performance of the commercially available IrO_(2) catalyst.

关键词： Ir single atoms layered double hydroxides rational design geometric optimization oxygen evolution reaction

Allelic functional variation of FimH among Salmonella enterica subspecies

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Animal Diseases 2023年第4期3卷 265-274页

作者： Xiamei Kang jiaqi chen Xiao Zhou Abdelaziz Ed-Dra Min Yue Instituteof Preventive Veterinary Sciences&Department of Veterinary Medicine Zhejiang University College of Animal SciencesHangzhou 310058China Laboratory of Engineering and Applied Technologies Higher School of TechnologySultan Moulay Slimane UniversityPB:591Mghila University Campus23000Beni MellalMorocco Hainan Institute of Zhejiang University SanyaChina Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine Hangzhou 310058China

Salmonella enterica has a wide diversity,with numerous serovars belonging to six different subspecies with dynamic animal-host *** FimH protein is the adhesin mediating binding to various cells,and slight amino acid discrepancy significantly affects the adherence *** date,the general function of FimH variability across dif-ferent subspecies of Salmonella enterica has not been *** investigate the biological functions of FimH among the six Salmonella enterica subspecies,the present study performed several assays to determine biofilm for-mation,Caenorhabditis elegans killing,and intestinal porcine enterocyte cell IPEC-J2 adhesion by using various FimH allele *** general,allelic mutations in both the lectin and pilin domains of FimH could cause changes in bind-ing affnity,such as the N79S *** also observed that the N79S variation in Salmonella Dublin increased the adhesive ability of IPEC-J2 ***,a new amino acid substitution,T260M,within the pilin domain in one subspecies llb strain beneficial to binding to cells was highlighted in this study,even though the biofilm-forming and Caenorhabditis elegans-killing abilities exhibited no significant differences in *** with point muta-tions being a natural tendency due to positive selection in harsh environments,we speculate that allelic variation T26oM probably contributes to pathoadaptive evolution in Salmonella enterica subspecies llb.

关键词： Salmonella subspecies FimH Amino acid substitution Binding Allelic variation

Real-time,single-particle chemical composition,volatility and mixing state measurements of urban aerosol particles in southwest China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第2期136卷 361-371页

作者： Luyao chen Junke Zhang jiaqi Li Xiaojuan Huang Yuzheng Xiang Jing chen Tingru Pan Wei Zhang Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengdu 611756China School of Atmospheric Sciences Chengdu University of Information TechnologyChengdu 610225China Sichuan Environmental Monitoring Center Chengdu 610074China

To investigate the volatility of atmospheric particulates and the evolution of other particulate properties(chemical composition,particle size distribution and mixing state)with temperature,a thermodenuder coupled with a single particle aerosol mass spectrometer was used to conduct continuous observations of atmospheric fine particles in chengdu,southwest *** of their complex sources and secondary reaction processes,the average mass spectra of single particles contained a variety of chemical components(including organic,inorganic and metal species).When the temperature rose from room temperature to280℃,the relative areas of volatile and semi-volatile components decreased,while the relative areas of less or non-volatile components ***(>80%)nitrate and sulfate existed in the form of NH_(4)NO_(3)and(NH_(4))_(2)SO_(4),and their volatilization temperatures were50–100℃and 150–280℃,*** contribution of biomass burning(BB)and vehicle emission(VE)particles increased significantly at 280℃,which emphasized the important role of regional biomass burning and local motor vehicle emissions to the core of *** the increase in temperature,the particle size of the particles coated with volatile or semi-volatile components was reduced,and their mixing with secondary inorganic components was significantly *** formation of K-nitrate(KNO_(3))and K-sulfate(KSO_(4))particles was dominated by liquid-phase processes and photochemical reactions,*** KNO_(3)and BB particles is the key to improving *** new results are helpful towards better understanding the initial sources,pollution formation mechanisms and climatic effects of fine particulate matter in this megacity in southwest China.

关键词： Atmospheric fine particles TD-SPAMS Chemical composition Volatility Mixing state

Scalable Temporal Dimension Preserved Tensor Completion for Missing Traffic Data Imputation With Orthogonal Initialization

在线全文

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2024年第10期11卷 2188-2190页

作者： Hong chen Mingwei Lin jiaqi Liu Zeshui Xu School of Mathematics and Statistics Fujian Normal UniversityFuzhou 350117China College of Computer and Cyber Security Fujian Normal UniversityFuzhou 350117China Business School Sichuan UniversityChengdu 610064China IEEE

Dear Editor,This letter puts forward a novel scalable temporal dimension preserved tensor completion model based on orthogonal initialization for missing traffic data(MTD)*** MTD imputation acts directly on accessing ... 详细信息

关键词： Dimension management traffic

新安医家固本培元理论在疫病康复中的应用探析

在线全文

学校读者我要写书评

暂无评论

现代中医临床 2024年第1期31卷 99-102页

作者：叶冠成赵歆陈佳祺王凤龙李峰毛萌北京中医药大学第二临床医学院北京100078 北京中医药大学中医学院首都医科大学附属北京中医医院皮肤科黄山市人民医院中医科

外感疫疠病邪侵犯人体后,正气本虚难以抗邪,邪气又耗伤人体正气,故恢复期患者多见元气大亏之象,新安医家将固本培元之法应用于疫病恢复期。固本培元理论是新安医学独具特色的理论,其核心在于既培补人体真元,又调补后天之本脾胃。在疫病... 详细信息

外感疫疠病邪侵犯人体后,正气本虚难以抗邪,邪气又耗伤人体正气,故恢复期患者多见元气大亏之象,新安医家将固本培元之法应用于疫病恢复期。固本培元理论是新安医学独具特色的理论,其核心在于既培补人体真元,又调补后天之本脾胃。在疫病康复中的具体应用包括:肺脾同治,共复升降;脾胃并重,培土御邪;滋养营卫,培元护本;滋补肾水,培护先天;养阴清润,护阴保津。

关键词：新安医学固本培元康复疫病

名中医王瑞平运用“培土生金法”治疗肺癌经验

在线全文

学校读者我要写书评

暂无评论

陕西中医 2024年第4期45卷 536-540页

作者：陈香颖宁永波王雅兴陈嘉齐吴存恩王瑞平南京中医药大学附属医院江苏南京210029

肺癌是具有高发病率、高病死率特点的常见恶性肿瘤之一,近年来中医药在肺癌的治疗中发挥出独特优势。江苏省名中医王瑞平长期从事中医药防治恶性肿瘤的临床与科研工作,积累了丰富的临床经验。王瑞平教授临床以“培土生金”为指导思想治... 详细信息

肺癌是具有高发病率、高病死率特点的常见恶性肿瘤之一,近年来中医药在肺癌的治疗中发挥出独特优势。江苏省名中医王瑞平长期从事中医药防治恶性肿瘤的临床与科研工作,积累了丰富的临床经验。王瑞平教授临床以“培土生金”为指导思想治疗肺部癌肿,倡导扶正抗癌、养正除积的理念,临证治疗肺癌、肺部结节、肺部毛玻璃样改变以及肺癌放化疗后防止癌肿复发等方面疗效显著。现从病因病机、理论认识、临证应用、处方特色等方面梳理总结王瑞平教授临床运用“培土生金法”治疗肺癌的经验,以期为中医药治疗肺癌提供更多的临床实践依据。

关键词：肺癌培土生金王瑞平名中医扶正抗癌肺脾同治

复方中草药对三穗麻鸭鸭坦布苏病毒净化后核心群生产性能及免疫指标的影响

在线全文

学校读者我要写书评

暂无评论

黑龙江畜牧兽医 2024年第2期 99-104,110页

作者：安而立嵇辛勤阮涌王晗晗罗晓宇龙丹丹陈佳琪杨纯培姚碧琼贵州大学动物科学学院贵阳550025 贵州省动物疫病研究所贵阳550025 贵州大学高原山地动物遗传育种与繁殖教育部重点实验室贵阳550025 贵州省动物遗传育种与繁殖重点实验室贵阳550025 三穗县动物疫病预防控制中心贵州三穗556500

为了开展三穗麻鸭鸭坦布苏病毒(Duck Tembusu virus,DTMUV)的净化及探索净化后复方中草药对核心群生产性能及免疫指标的影响,试验采集胎粪、血液、泄殖腔棉拭子、蛋清样本共170573份,应用ELISA、PCR方法进行鸭坦布苏病毒抗原检测。依据... 详细信息

为了开展三穗麻鸭鸭坦布苏病毒(Duck Tembusu virus,DTMUV)的净化及探索净化后复方中草药对核心群生产性能及免疫指标的影响,试验采集胎粪、血液、泄殖腔棉拭子、蛋清样本共170573份,应用ELISA、PCR方法进行鸭坦布苏病毒抗原检测。依据检测结果淘汰阳性鸭,结合禽病的综合防控措施,实施5个世代鸭坦布苏病毒净化方案,建立鸭坦布苏病毒核心净化群,并测定其繁殖性能指标(产蛋率、受精率、孵化率、雏鸭成活率、育成率)。在净化后4世代,从核心群中挑选7日龄三穗麻鸭共120只,分为4组,分别为低、中、高剂量组及对照组,每组3个重复,每个重复10只。低、中、高剂量组在基础日粮中分别添加0.1%、0.2%、0.3%的复方中草药,对照组只饲喂基础日粮,连续饲喂30 d后测定其生产性能指标(平均日增重、平均日采食量、料重比、平均终末体重、平均产蛋量)及免疫指标[免疫球蛋白A(IgA)、免疫球蛋白M(IgM)、免疫球蛋白G(IgG)、白细胞介素-2(IL-2)、白细胞介素-4(IL-4)、白细胞介素-6(IL-6)、γ干扰素(IFN-γ)]。结果表明:经过5个世代净化,三穗麻鸭鸭坦布苏病毒抗原阳性率由0世代的5.11%下降至4世代的0;与0世代相比,产蛋率、受精率、孵化率、雏鸭成活率、育成率分别增加21.53%、11.06%、2.87%、3.95%、5.38%。高剂量组三穗麻鸭平均日增重、平均日采食量、平均终末体重、平均产蛋量均显著高于对照组(P0.05)。说明该方案净化效果良好,在基础日粮中添加0.3%复方中草药可提高三穗麻鸭生产性能与机体免疫功能。

关键词：鸭坦布苏病毒三穗麻鸭净化复方中草药免疫指标