检索结果-南通市图书馆

Science Bulletin 2018年第4期63卷 209-212页

作者： jian-qing lin Qi Zhou Hai-Qiong Yang Li-Ming Fang Ke-Yi Tang Li Sun Qiu-Hong Wan Sheng-Guo Fang The Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education and State Conservation Center for Gene Resources of Endangered WildlifeCollege of Life SciencesZhejiang UniversityHa ngzhou 310058China Life Sciences Institute Zhejiang UniversityHangzhou 310058China Changxing Yinjiahian Chinese Alligator Nature Reserve Changxing 313100China

Sex determination(SD)is a critical embryonic development process that has profound impacts on the morphology of individuals and the survival of populations[1].In vertebrates,sex can be determined by either genetic or environmental factors[2],with the underlying molecular mechanism unknown for most species except for a few model organisms[3,4].Unlike mammals and birds,

关键词：温度依赖短吻鳄性别中国机制分子性染色体脊椎动物

Differential diagnosis of pancreatic cancer by single-shot echo-planar imaging diffusion-weighted imaging

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2015年第20期21卷 6374-6380页

作者： Ben-Zu Hong Xin-Feng Li jian-qing lin Department of General Surgery Second Affiliated Hospital of Fujian Medical University Department of Oncological Surgery Second Affiliated Hospital of Fujian Medical University

AIM: To investigate the diagnostic ability of single-shot echo-planar imaging(EPI) diffusion-weighted imaging (DWI) to differentiate between malignant and benign pancreatic lesions. METHODS: A computerized search was performed on Pub Med, MEDlinE and EMBASE up to August 2014. Nine studies(10 sets of data) with a total of 304 malignant pancreatic lesions and 188 benign pancreatic lesions were included. The characteristics of each study included the study name, year of publication, magnetic resonance modalities used, patient population, strength of field, pulse time, repetition time, echo time(TE), maximum b factor, mean age, mean body weight, fat suppression, number of benign and malignant lesions, and true positive, true negative, false positive and false negative results. All analyses were performed using Meta-Di Sc and Stata ***: The pooled sensitivity and specificity of singleshot EPI DWI were 0.83(95%CI: 0.79-0.87) and 0.77(95%CI: 0.70-0.83), respectively. The positive likelihood ratio and negative likelihood ratio were 5.09(95%CI: 2.19-11.84) and 0.23(95%CI: 0.15-0.36), respectively. The P value for the χ2 heterogeneity for all pooled estimates was 0.05). CONCLUSION: Single-shot EPI DWI is useful to differentiate between malignant and benign pancreatic lesions. Lesion size ≥ 2 cm is the limit for the diagnosis of early lesions.

关键词： Meta-analysis Single-shot echo-planarimaging Diffusion-weighted imaging Pancreatic cancer Differential diagnosis

Electrocatalytic oxidation and determination of dopamine at a carbon ionic liquid electrode modified with nafion-L-aspartic acid composite film

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 Pharmaceutical Analysis 2010年第1期22卷 1-6页

作者： Xiao-Dong Shangguan,jian-Bin Zheng,qing-lin Sheng,Ya-Ping He Institute of Analytical Science,Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry,Northwest University,Xi’an 710069,China Institute of Analytical Science Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an 710069 China

The electrocatalytic oxidation of dopamine(DA)was studied by electrochemical approaches at a carbon ionic liquid electrode(CILE)modified with the composite film of nafion and L-aspartic acid(NL-CILE).The CILE was fabricated by replacing non-conductive organic binders with a room-temperature hydrophobic ionic liquid,1-butyl-3-methyl-imidazolium *** composite film of NL was used as matrix to adsorb DA and catalyze the oxidation of DA in phosphate buffer solution(PBS).The electrochemical response of DA was investigated at the NL-CILE,the traditional carbon paste electrode(TCPE),CILE and the nafion modified CILE(N-CILE)in 0.1M PBS(pH 7.4),*** results showed the superiority of NL-CILE to N-CILE,CILE and TCPE in terms of provision of higher sensitivity,faster electron transfer and better *** optimum condition,the oxidation peak current was rectilinear with DA concentration range from 0.1μM to 0.1mM,with a detection limit of 0.03μM(S/N=3)by differential pulse *** proposed method was applied to determine DA in samples successfully.

关键词： voltammetry Ionic liquid nafion L-aspartic acid dopamine

A PRELIMINARY STUDY ON METALLOGENESIS OF THE LAMASU COPPER POLYMETALLIC ORE DEPOSIT, XINjianG

在线全文

学校读者我要写书评

暂无评论

Geotectonica et Metallogenia 2001年第1期25卷 156-159页

作者： LAI jian qing, PENG Sheng lin, SHAO Yong jun, WANG He (Institute of Geology, Central South University, Changsha 410083, China) Institute of Geology Central South UniversityChangsha 410083China

The Lamasu copper polymetallic mineralized region lies in the south of Wenquan County, Xinjiang and in the Northwest lakeside of the Sailimu Lake. Seen from the geotectonic position, it belongs to North Tianshan geodome system, Tianshan diwa region, Central Asian crustobody. Copper and zinc polymetallic ore bodies had been formed in the skarn of the contact, between the metamophic carbonate rocks of the Kuximqiek Group, Jixian System and early mid Varisean acidic rockbodies. The formation of the ore deposit was the result of the successive activities of the crust and mantle and the tectonic and magmatic activities.

关键词： rock A PRELIMINARY STUDY ON METALLOGENESIS OF THE LAMASU COPPER POLYMETALLIC ORE DEPOSIT XINjianG ORE

Prussian Blue Analogue‑Templated Nanocomposites for Alkali‑Ion Batteries:Progress and Perspective

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 216-261页

作者： jian‑En Zhou Yilin Li Xiaoming lin Jiaye Ye Key Laboratory of Theoretical Chemistry of Environment Ministry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006People’s Republic of China School of Chemistry and Physics Faculty of ScienceQueensland University of Technology2 George StreetBrisbaneQLD 4000Australia Centre for Materials Science Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia

Lithium-ion batteries(LIBs)have dominated the portable electronic and electrochemical energy markets since their commercialisation,whose high cost and lithium scarcity have prompted the development of other alkali-ion batteries(AIBs)including sodium-ion batteries(SIBs)and potassium-ion batteries(PIBs).Owing to larger ion sizes of Na^(+)and K^(+)compared with Li^(+),nanocomposites with excellent crystallinity orientation and well-developed porosity show unprecedented potential for advanced lithium/sodium/potassium *** enticing open rigid framework structures,Prussian blue analogues(PBAs)remain promising self-sacrificial templates for the preparation of various nanocomposites,whose appeal originates from the well-retained porous structures and exceptional electrochemical activities after thermal *** review focuses on the recent progress of PBA-derived nanocomposites from their fabrication,lithium/sodium/potassium storage mechanism,and applications in AIBs(LIBs,SIBs,and PIBs).To distinguish various PBA derivatives,the working mechanism and applications of PBA-templated metal oxides,metal chalcogenides,metal phosphides,and other nanocomposites are systematically evaluated,facilitating the establishment of a structure–activity correlation for these *** on the fruitful achievements of PBA-derived nanocomposites,perspectives for their future development are envisioned,aiming to narrow down the gap between laboratory study and industrial reality.

关键词： Prussian blue analogues Self-sacrificial template Lithium-ion batteries Sodium-ion batteries Potassium-ion batteries

Ideal Bi-Based Hybrid Anode Material for Ultrafast Charging of Sodium-Ion Batteries at Extremely Low Temperatures

在线全文

学校读者我要写书评

暂无评论

NANO-MICRO LETTERS 2025年第1期17卷 1-16页

作者： Bai, Jie Jia, jian Hui Wang, Yu Yang, Chun Cheng jiang, qing Jilin Univ Key Lab Automobile Mat Sch Mat Sci & Engn Minist Educ Changchun 130022 Peoples R China

Metallic nanoparticles with excellent size controllability and high loading rate are obtained via ultrafast high temperature shock *** Bi/CNRs-15 electrode exhibits an unprecedented rate performance (237.9 mAh g-1 at 2 A g-1) at - 60 degrees C, while the energy density of the full cell can reach to 181.9 Wh kg-1 at - 40 degrees C.A novel strategy of high-rate activation is proposed to obtain high capacity and superior stability at low temperature by creating new active sites for interfacial reaction. Sodium-ion batteries have emerged as competitive substitutes for low-temperature applications due to severe capacity loss and safety concerns of lithium-ion batteries at - 20 degrees C or lower. However, the key capability of ultrafast charging at ultralow temperature for SIBs is rarely reported. Herein, a hybrid of Bi nanoparticles embedded in carbon nanorods is demonstrated as an ideal material to address this issue, which is synthesized via a high temperature shock method. Such a hybrid shows an unprecedented rate performance (237.9 mAh g-1 at 2 A g-1) at - 60 degrees C, outperforming all reported SIB anode materials. Coupled with a Na3V2(PO4)3 cathode, the energy density of the full cell can reach to 181.9 Wh kg-1 at - 40 degrees C. Based on this work, a novel strategy of high-rate activation is proposed to enhance performances of Bi-based materials in cryogenic conditions by creating new active sites for interfacial reaction under large current.

关键词： Bi nanoparticles High temperature shock High-rate activation Ultrafast charging Low-temperature sodium-ion batteries

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

清漆光泽对涂膜颜色的影响

涂料工业 2004年第12期34卷 49-50页

作者：王健犀马庆林 PPG涂料(天津)公司 300457

在不同测色几何条件下,讨论不同光泽的清漆喷涂在相同的面漆上,对面漆的颜色的影响。并通过最小二乘法线性拟合后进行显著性检验。

关键词：清漆涂膜面漆光泽喷涂线性拟合显著性检验测色颜色

在线全文

学校读者我要写书评

暂无评论

利用腔内位相调制改善固体激光器的光束质量

中国激光 2001年第11期28卷 966-970页

作者：王立刚蔡阳健江晓清林强浙江大学物理系光学研究所杭州310028

提出一种新的利用腔内位相调制的方法来改善激光器输出的光束质量。位相调制用铌酸锂 (linbO3 )电光晶体实现 ,所用激光器为连续氪灯抽运的Nd∶YAG激光器。实验结果表明 ,利用腔内位相调制的方法。

关键词：位相调制光束质量固体激光器

Dielectric-ion-conductive ZnNb2O6 layer enabling rapid desolvation and diffusion for dendrite-free Zn metal batteries

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 693-701页

作者： Haifeng Yang jian Wang Panpan Zhang Xiaomin Cheng qinghua Guan Jing Dong Bixian Chen Lujie Jia Jing Zhang Yongzheng Zhang Yunjian Liu Hongzhen lin School of Materials Science and Engineering Jiangsu University i-Lab & CAS Key Laboratory of Nanophotonic Materials and Devices Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Helmholtz Institute Ulm (HIU) Karlsruhe Institute of Technology (KIT) School of Materials Science and Engineering Xi'an University of Technology State Key Laboratory of Chemical Engineering East China University of Science and Technology

Rechargeable aqueous zinc-metal batteries （AZMBs） are promising candidates for large-scale energy storage systems due to their low cost and high ***,their performance and sustainability are significantly hindered by the sluggish desolvation kinetics at the electrode/electrolyte interface and the corresponding hydrogen evolution reaction where active water molecules tightly participate in the Zn（H2O）62+solvation ***,learnt from self-generated solid electrolyte interphase （SEI） in anodes,the dielectric but ion-conductive zinc niobate nanoparticles artificial layer is constructed on metallic Zn surface （ZNB@Zn）,acting as a rapid desolvation *** zincophilic and dielectric-conductive properties of ZNB layer accelerate interfacial desolvation/diffusion and suppress surface corrosion or dendrite formation,achieving uniform Zn plating/stripping behavior,as confirmed by electronic/optical microscopies and interface spectroscopical measurements together with theoretical ***,the as-prepared ZNB@Zn electrode exhibits excellent cycling stability of over 2000 h and robust reversibility （99.54%） even under high current density and depth of discharge ***,the assembled ZNB@Zn-based full cell displays high capacity-retention rate of 80.21%after 3000 cycles at 5 A g-1and outstanding rate performance up to 10 A *** large-areal pouch cell is stabilized for hundreds of cycles,highlighting the bright prospects of the dielectric but ion-conductive layer in further application of AZMBs.

关键词： Zn metal battery Dielectric artificial layer Rapid ion diffusion Zincophilic diffusion Active water inhibition

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

军医大学建立文职人员绩效考评体系的思考

西北医学教育 2007年第3期15卷 432-433页

作者：许灵蹇清林向焱彬第三军医大学政治部

文职人员是新形势下我军体制编制调整改革和军队干部人事制度改革的产物，是我军武装力量的一类新的人才群体和重要组成部分，建立科学、合理、高效的绩效考评体系，对贯彻和推进文职人员制度具有重要作用和意义。本文对军医大学建立文... 详细信息

文职人员是新形势下我军体制编制调整改革和军队干部人事制度改革的产物，是我军武装力量的一类新的人才群体和重要组成部分，建立科学、合理、高效的绩效考评体系，对贯彻和推进文职人员制度具有重要作用和意义。本文对军医大学建立文职人员绩效考评体系提出了初步的思考和看法。

关键词：军医大学文职人员绩效考评