检索结果-南通市图书馆

Functional Studies of Castor(Ricinus communis L.)PLC Family Genes in Arabidopsis Inflorescence Development

Phyton-International Journal of Experimental Botany 2023年第11期92卷 3091-3112页

作者： Yanpeng Wen Rui Luo lili li Xiaotian liang Xuemei Hu Ruxin li Zhiyan Wang Fenglan Huang College of life Science and Food Engineering Inner Mongolia University for the NationalitiesTongliao028000China Key Laboratory of Castor Breeding of the State Ethnic Affairs Commission Inner Mongolia University for the NationalitiesTongliao028000China Inner Mongolia Industrial Engineering Research Center of Universities for Castor Inner Mongolia University for the NationalitiesTongliao028000China Inner Mongolia Key Laboratory of Castor Breeding and Comprehensive Utilization Inner Mongolia University for the NationalitiesTongliao028000China Inner Mongolia Engineering Research Center of Industrial Technology Innovation of Castor Inner Mongolia University for the NationalitiesTongliao028000China

Castor(Ricinus communis L.)is one of the top 10 oil crops in the world,and inflorescence is a trait that directly affects its *** C(PLCs)is involved in many plant activities and metabolic *** study the functions of PLC family genes in the regulation of the inflorescence development of the female line of Lm-type castor aLmAB2,we determined the expression levels of six PLC family genes of three types of inflorescences of aLmAB2(isofemale line,female line,bisexual line)at different developmental *** results showed that the 6 genes of the castor PLC family had relative expression levels at different developmental stages of the three types of *** subcellular location of all six protein products was the cell *** six genes were heterologously overexpressed in Arabidopsis thaliana to obtain the T3 generation-resistant Arabidopsis thaliana *** results showed that the overexpression of six genes significantly promoted the maturation of Arabidopsis thaliana,the growth of lateral moss,and the development of flowers and pods,but the development of basal leaves and stem leaves of Arabidopsis thaliana was significantly *** to homology analysis,it is speculated that PLC2,PLC2M,PLC2N,PLC4,PLC4X2,and PLC6 genes have the same regulatory function.

关键词： Castor PLC family genes the female line of Lm-type castor inflorescence development

来源：

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

Solid Solution Sm_(1+x)Ba_(2-x)Cu_3O_y and Effect of Quench Temperature on SmBa_2Cu_3O_y

引用

Journal of Materials Science & Technology 1994年第4期10卷 269-272页

作者： Xianran XING Zhiyu qiao Wenxia YUAN and Shoukun WEI (University of Science and Technology Beijing, Beijing, 100083, China)(To whom correspondence should be addressed)Xiaolong CHEN, Guanghui RAO and Jingkui liang (Institute of Physics, Chinese Academy o Univ of Science and Technology Beijing China

By X-ray powder diffraction technique and oxygen content analysis, a solid solution Sm1+xBa2-xCu3Oy has been determined in the range 0≤x≤0.4. When x<0.25. the Sm1+xBa2-xCu3Oy presents orthorhombic symmetry, and the orthorhombic-tetragonaJ transition ocCurs at x = 0.25. With the increase of x, TC decreases and finally breaks. The correlation between ox ygen content and phase structure at different quench temperatures related to Sm Ba2Cu3Oy has been investigated as well

关键词： x)Ba x)Cu3Oy and Effect of Quench Temperature on SmBa2Cu3Oy Cu Solid Solution Sm

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ultrafast Response and Threshold Adjustable Intelligent Thermoelectric Systems for Next‑Generation Self‑Powered Remote IoT Fire Warning

引用

Nano-Micro Letters 2024年第11期16卷 413-428页

作者： Zhaofu Ding Gang li Yejun Wang Chunyu Du Zhenqiang Ye lirong liang Long‑Cheng Tang Guangming Chen College of Materials Science and Engineering&College of Civil and Transportation Engineering Shenzhen UniversityShenzhen 518055People’s Republic of China College of Material Chemistry and Chemical EngineeringKey Laboratory of Organosilicon Chemistry and Material Technology of MoEHangzhou Normal UniversityHangzhou 311121People’s Republic of China

Fire warning is vital to human life,economy and ***,the development of effective warning systems faces great challenges of fast response,adjustable threshold and remote ***,we propose an intelligent self-powered remote IoT fire warning system,by employing single-walled carbon nanotube/titanium carbide thermoelectric composite *** flexible films,prepared by a convenient solution mixing,display p-type characteristic with excellent high-temperature stability,flame retardancy and TE(power factor of 239.7±15.8μW m^(-1) K^(-2))*** comprehensive morphology and structural analyses shed light on the underlying *** the assembled TE devices(TEDs)exhibit fast fire warning with adjustable warning threshold voltages(1–10 mV).Excitingly,an ultrafast fire warning response time of~0.1 s at 1 mV threshold voltage is achieved,rivaling many state-of-the-art ***,TE fire warning systems reveal outstanding stability after 50 repeated cycles and desired durability even undergoing 180 days of air ***,a TED-based wireless intelligent fire warning system has been developed by coupling an amplifier,analogto-digital converter and Bluetooth *** combining TE characteristics,high-temperature stability and flame retardancy with wireless IoT signal transmission,TE-based hybrid system developed here is promising for next-generation self-powered remote IoT fire warning applications.

关键词： Thermoelectric Self-powered IoT fire warning Ultrafast response Threshold adjustable

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Prognostic value of the neutrophil-to-lymphocyte ratio for hepatocellular carcinoma patients with portal/hepatic vein tumor thrombosis

引用

World Journal of Gastroenterology 2017年第17期23卷 3122-3132页

作者： Shao-Hua li qiao-Xuan Wang Zhong-Yuan Yang Wu Jiang Cong li Peng Sun Wei Wei Ming Shi Rong-Ping Guo State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer MedicineCancer Center of Sun Yat-Sen University Department of Hepatobiliary Surgery Cancer Center of Sun Yat-Sen University Department of Radiation Oncology Cancer Center of Sun Yat-Sen University Department of Head and Neck Surgery Cancer Center of Sun Yat-Sen University Department of Colorectal Surgery Cancer Center of Sun Yat-Sen University Department of Anesthesia Cancer Center of Sun YatSen University

AIM To investigate whether the preoperative neutrophil-tolymphocyte ratio(NLR) could predict the prognosis of hepatocellular carcinoma(HCC) patients with portal/hepatic vein tumor thrombosis(PVTT/HVTT) after *** The study population included 81 HCC patients who underwent hepatectomy and were diagnosed with PVTT/HVTT based on pathological examination. The demographics, laboratory analyses, and histopathology data were *** Overall survival(OS) and disease-free survival(DFS) were determined in the patients with a high(> 2.9) and low(≤ 2.9) NLR. The median OS and DFS duration in the high NLR group were significantly shorter than those in the low NLR group(OS: 6.2 mo vs 15.7 mo, respectively, P = 0.007; DFS: 2.2 mo vs 3.7 mo, respectively, P = 0.039). An NLR > 2.9 was identified as an independent predictor of a poor prognosis of OS(P = 0.034, HR = 1.866; 95%CI: 1.048-3.322) in uni-and multivariate analyses. Moreover, there was a significantly positive correlation between the NLR and the Child-Pugh score(r = 0.276, P = 0.015) and the maximum diameter of the tumor(r = 0.435, P liP score for DFS in these patients. CONCLUSION The preoperative NLR is a prognostic predictor after hepatectomy for HCC patients with PVTT/HVTT. NLR > 2.9 indicates poorer OS and DFS.

关键词： Hepatocellular carcinoma Portal/hepatic vein tumor thrombosis Neutrophil-to-lymphocyte ratio Prognosis

来源：

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

结构用定向刨花板与云杉-松-冷杉规格材混合组坯正交胶合木的抗弯性能

引用

林业科学 2021年第11期57卷 158-168页

作者：李桥王志强梁芝君李龙南京林业大学材料科学与工程学院南京210037 湖北天欣木结构房屋制造有限公司汉川431600

【目的】探究国产结构用定向刨花板(COSB)与云杉-松-冷杉(SPF)规格材混合组坯正交胶合木(HCLT)的抗弯性能,明确组坯结构和层数对HCLT抗弯性能的影响,以拓宽国内正交胶合木(CLT)产品原材料来源、促进COSB在木结构建筑领域的应用。【方法... 详细信息

【目的】探究国产结构用定向刨花板(COSB)与云杉-松-冷杉(SPF)规格材混合组坯正交胶合木(HCLT)的抗弯性能,明确组坯结构和层数对HCLT抗弯性能的影响,以拓宽国内正交胶合木(CLT)产品原材料来源、促进COSB在木结构建筑领域的应用。【方法】利用COSB和SPF规格材以不同组坯结构与层板位置混合形成不同层数(3层和5层)、5种组坯结构的CLT和HCLT试件,对试件进行四点弯曲性能测试,评价CLT/HCLT材料主、次方向的抗弯强度、抗弯模量和破坏模式;采用剪切类比法计算抗弯性能理论值,并建立HCLT有限元模型分析HCLT的抗弯性能。【结果】不同组坯结构HCLT破坏模式不同,主方向试件主要为横向层锯材滚动剪切破坏和底层层板拉伸破坏;由于层板侧面未涂胶胶合,次方向试件主要在底层层板缝隙处发生拉伸破坏。HCLT的抗弯性能普遍高于SPF规格材CLT,对于主方向抗弯强度,所有HCLT试件的抗弯强度均高于SPF规格材CLT,与SPF规格材CLT相比(A1组),3层和5层HCLT试件(A3组)的抗弯刚度分别高10%和31%,抗弯强度分别高76%和48%;次方向抗弯性能提升更大,与SPF规格材CLT相比(B1组),3层和5层HCLT试件(B4组)的抗弯刚度分别高447%和83%,抗弯强度分别高118%和40%。随着COSB在HCLT中使用层数增加,HCLT次方向和双向力学性能均得到提升,主、次方向抗弯力学性能差异减少;综合考虑材料经济性和力学性能,A3/B3组坯结构,即仅将COSB作为横向层形成的HCLT材料具有更好的双向弯曲性能。随着CLT层数增加,试件抗弯刚度和次方向抗弯强度增加,主方向抗弯强度降低;采用剪切类比法可较好预测CLT主方向抗弯性能,但由于存在非侧面胶合的横向层等因素影响,次方向力学性能存在一定相对误差,理论值偏于保守;对于次方向试件抗弯性能理论计算,当表层层板为COSB时,可不忽略表层层板作用;建立的有限元模型能较好分析HCLT抗弯力学行为。【结论】相比实木锯材,COSB具有较好的次方向力学性能,可作为CLT层板使用(尤其作为横向层层板),提升CLT滚动剪切性能和抗弯力学性能。COSB在CLT中应用有很好的可行性。

关键词：正交胶合木混合层板结构用定向刨花板弯曲性能剪切类比法数值模拟

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Super-high bed sintering for iron ores: inhomogeneous phenomena and its mechanism during mineralizing

引用

Journal of Iron and Steel Research International 2024年第8期31卷 1850-1860页

作者： Hui-bo liu liang-ping Xu Xi-duan Yang Zhong-lin Dong Qiang Zhong Guang-hui li School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083HunanChina

The inhomogeneous sinter properties in super-high bed sintering have been reported in our previous *** inves-tigate the reasons for the inhomogeneous phenomena,detailed sampling and analysis of mixed material bed and sintered bed in super-high bed sintering plant were *** results indicated that the higher porosity and thinner dendrite of silico-ferrite of calcium and aluminum in the upper layer as well as dense structure and higher secondary hematite content in the lower layer led to the heterogeneities of mechanical strength and reduction properties exceeding 20%and 10%,*** the bed top downward,the basicity of mixed material decreased from 2.13 to 1.68 because the average particle size increased from 2.65 to 4.56 *** and fuels gathered in finer particles(-3 mm)of mixed material,and the-3 mm particles of mixed material generated more liquid phase than+3 mm *** heat input of super-high sintering bed was inhomogeneous due to the heat accumulation effect and unreasonable fuel *** inhomo-geneous sintering heat condition in sintering bed resulted in the different quantities and properties of liquid *** inhomogeneous quantities and properties of liquid phase that were influenced by inhomogeneous distribution of chemical composition,particle size,and heat input led to inhomogeneous mineralizing *** mineralizing condition is the key for homogeneous super-high bed sintering.

关键词： Iron ore Super-high bed sintering Mineralization Material segregation Heat accumulation

来源：

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

(Metal yolk)/(porous ceria shell)nanostructures for high-performance plasmonic photocatalysis under visible light

引用

Nano Research 2020年第5期13卷 1354-1362页

作者： Nina Jiang Danyang li lili liang Qing Xu Lei Shao Shi-Bin Wang Aizheng Chen Jianfang Wang College of Chemical Engineering Huaqiao UniversityXiamen 361021China Department of Physics The Chinese University of Hong KongShatinHong Kong SARChina Country Fujian Provincial Key Laboratory of Biochemical Technology(Huaqiao University) Xiamen 361021China

We describe a route to the preparation of(metal yolk)/(porous ceria shell)nanostructures through the heterogeneous growth of ceria on porous metal nanoparticles followed by the calcination-induced shrinkage of the *** approach allows for the control of the ceria shell thickness,the metal yolk composition and size,which is difficult to realize through common templating *** yolk/shell nanostructures with monometallic Pt and bimetallic PtAg yolks featuring plasmon-induced broadband light absorption in the visible region are rationally designed and *** superior photocatalytic activities of the obtained nanostructures are demonstrated by the selective oxidation of benzyl alcohol under visible *** excellent activities are ascribed to the synergistic effects of the metal yolk and the ceria shell on the light absorption,electron-hole separation and efficient mass *** synthesis of the(metal yolk)/(porous ceria shell)nanostructures points out a way to the creation of sophisticated heteronanostructures for high-performance photocatalysis.

关键词： yolk-shell nanostructures ceria metal nanoparticles plasmon resonance photocatalysis

来源：

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

Formation mechanism of fault accommodation zones under combined stress in graben basin:Implications from geomechanical modeling

引用

Petroleum Science 2024年第1期21卷 54-76页

作者： Qi-Qiang Ren Jin-liang Gao Rong-Tao Jiang Jin Wang Meng-Ping li Jian-Wei Feng Institute of Sedimentary Geology Chengdu University of TechnologyChengdu 610059SichuanChina PetroChina Research Institute of Petroleum Exploration and Development Beijing100083China Jianghan Oilfield Oil and Gas Production Capacity Construction Management Center Chongqing408000China Sinopec Chongqing Fuling Shale Gas Exploration and Development Company Chongqing408000China College of Energy Chengdu University of TechnologyChengdu 610059SichuanChina School of Geoscience China University of Petroleum(East China)Qingdao 266580ShandongChina

A fault accommodation zone is a type of structure that is defined as regulating displacement and strain between faults *** numbers of fault accommodation zones are being identified in graben basins,indicating the potential exploration target and petroleum accumulation *** study aims to analyze the formation mechanism and development of fault accommodation zones under combined stress by a numerical simulation method considering geomechanical *** three-dimensional(3-D)seismic interpretation and fractal dimension method,exampled with the Dongxin fault zone,the fault activity and fault combination pattern were conducted to quantitatively characterize the activity difference in fault accommodation *** with mechanical experiment test,a geomehcanical model was established for fault accommodation zones in a graben *** the paleostress numerical simulations and structural physical simulation experiment,the developmental characteristics and genetic mechanism of fault accommodation zones were *** by multi movements and combined stresses,three significant tectonic evolution stages of the Dongxing Fault Zone(DXFZ)were distinguished:During the E_(s)^(3)sedimentary period,the large difference in the stress,strain,and rupture distribution in various faults were significant,and this stage was the key generation period for the prototype of the DXFZ,including the FAZ between large-scale *** the E_(s)^(2)sedimentary period,the EW-trending symmetric with opposite dipping normal faults and the NE-SW trending faults with large scale were furtherly *** junction area of two secondary normal faults were prone to be ruptured,performing significant period for inheriting and developing characteristics of fault accommodation *** the Es1 sedimentary period,the high-order faults in the DXFZ exhibited the obvious fault depressions and strike-slip activity,and the fault accommodation zones were

关键词： Fault accommodation zone Graben basin Fault activity Tectonic physical simulation experiment Finite element numerical simulation Dongxin fault zone

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesis and Insecticidal Activity of Novel Camptothecin Derivatives Containing Analogs of Chrysanthemic Acid Moieties

引用

Journal of Integrative Agriculture 2014年第6期13卷 1320-1330页

作者： DENG li ZHANG Lan CAO li-dong XIE Ru-liang ZHANG Yan-ning HE Wei-zhi JIANG Hong-yun Hong-yun State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences

Creating high-efifcient and environment-friendly pesticides is very important to produce the pollution free agriculture food and maintain the balance of the survival environmental of the human being. According to reports, camptothecin （CPT） and its derivatives are now being explored as a class of botanical insecticide in agriculture due to its novel mode of action. In order to improve the insecticidal activity of CPT, ten novel camptothecin （1） and 10-hydroxycamptothecin （2） derivatives （1a, 1b, 1c, 1d, 1e;2a, 2b, 2c, 2d, 2e） were designed and synthesized via esteriifcation with analogs of chrysanthemic acid, which have outstanding insecticidal activity. The results showed that compound 2a exhibited potent antifeeding effect and the best contact toxicity among the target compounds against the third-instar larvae of beet armyworm, Spodoptera exigua H＆#252;bner. Compound 2a was also found to be the most effective cytotoxic compound to the tested insect cell lines, IOZCAS-Spex-II, which were established from the fat bodies of S. exigua. It was proposed that the 10-hydroxyl group in the camptothecin derivatives is a key factor for the antifeeding activity of a compound. The nature of the substituents was considered the major factor in determining the insecticidal activity of these compounds.

关键词： camptothecin analogs of chrysanthemic acid synthesis antifeeding activity contact toxicity cytotoxicity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

8.30%Efficiency P3HT-based all-polymer solar cells enabled by a miscible polymer acceptor with high energy levels and efficient electron transport

引用

Science China Chemistry 2023年第1期66卷 216-227页

作者： Ziqi liang Jiangting He Bin Zhao Mengyuan Gao Yu Chen Long Ye Miaomiao li Yanhou Geng School of Materials Science and Engineering and Tianjin Key Laboratory of Molecular Optoelectronic ScienceTianjin UniversityTianjin 300072China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China

P3HT stands out from numerous polymer donors owing to the merits of low cost and high scalability of ***,the photovoltaic performance of P3HT-based blends lags significantly behind the state-of-the-art systems,especially for all-polymer solar cells(APSCs) that generally show efficiency of around 3%–4% due to the lack of matched polymer ***,a polymer acceptor,named IDTBTC8-CN,was designed and synthesized with indacenodithiophene(IDT) and mono-cyano(CN)-substituted benzothiadiazole(BT-CN) as building *** a CN group endowed the polymer with decreased bandgap,and apparent n-type charge transport character despite the relatively high energy ***,IDTBTC8-CN showed largely improved miscibility with P3HT,compared with that of BT-based control polymer *** high miscibility between P3HT and IDTBTC8-CN as well as the amorphous aggregation behavior of IDTBTC8-CN enabled a broad manipulation room for the blend film to acquire favorable ***,a champion efficiency of 8.30% was achieved,in sharp contrast to that of the IDTBTC8-based system(1.21%).Such efficiency is a new record for P3HT-based APSCs reported so ***,P3HT:IDTBTC8-CN blend film also exhibited excellent mechanical *** study implies the guidance of molecular design of the polymer acceptors and morphology control for P3HT-based APSCs.

关键词： all-polymer solar cells poly(3-hexylthiophene) polymer acceptors energy levels film morphology

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：