检索结果-南通市图书馆

Precision tuning of highly efficient Pt-based ternary alloys on nitrogen-doped multi-wall carbon nanotubes for methanol oxidation reaction

引用

Journal of Energy Chemistry 2024年第1期88卷 242-251,I0006页

作者： Xingqun Zheng Zhengcheng Wang Qian Zhou Qingmei Wang Wei He Shun Lu College of Safety Engineering Chongqing University of Science&TechnologyChongqing 401331China College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China School of Chemistry and Chemical Engineering Guizhou UniversityGuizhou 550025GuiyangChina Department of Chemistry University of Rhode IslandKingston 02881Rhode IslandUnited States Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China

The electrochemical methanol oxidation is a crucial reaction in the conversion of renewable *** enable the widespread adoption of direct methanol fuel cells(DMFCs),it is essential to create and engineer catalysts that are both highly effective and robust for conducting the methanol oxidation reaction(MOR).In this work,trimetallic PtCoRu electrocatalysts on nitrogen-doped carbon and multi-wall carbon nanotubes(PtCoRu@NC/MWCNTs)were prepared through a two-pot synthetic *** acceleration of CO oxidation to CO_(2) and the blocking of CO reduction on adjacent Pt active sites were attributed to the crucial role played by cobalt atoms in the as-prepared *** precise control of Co atoms loading was achieved through precursor *** physicochemical techniques were employed to analyze the morphology,element composition,and electronic state of the *** investigations and theoretical calculations confirmed that the Pt_(1)Co_(3)Ru_(1)@NC/MWCNTs exhibit excellent electrocatalytic performance and durability for the process of *** enhanced MOR activity can be attributed to the synergistic effect between the multiple elements resulting from precisely controlled Co loading content on surface of the electrocatalyst,which facilitates efficient charge *** interaction between the multiple components also modifies the electronic structures of active sites,thereby promoting the conversion of intermediates and accelerating the MOR ***,achieving precise control over Co loading in PtCoRu@NC/MWCNTs would enable the development of high-performance catalysts for DMFCs.

关键词： Ternary alloys Electrocatalysts Methanol oxidation reaction Electron transfer Theoretical calculations

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

Efficient DIPA-CRISPR-mediated knockout of an eye pigment gene in the white-backed planthopper,Sogatella furcifera

引用

Insect Science 2024年第4期31卷 1015-1025页

作者： Meng-Qi Zhang Lang-Lang Gong Ya-Qin Zhao Yun-Feng Ma Gui-Jun Long Huan Guo Xuan-Zheng Liu J.Joe Hull Youssef Dewer Chao Yang Ning-Ning Zhang Ming He Peng He National Key Laboratory of Green Pesticides Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyangChina Pest Management and Biocontrol research Unit US Arid Land Agricultural Research CenterUSDA Agricultural Research ServicesMaricopaArizonaUSA Phytotoxicity research Department Central Agricultural Pesticide LaboratoryAgricultural Research CenterDokkiGizaEgypt guizhou Jifeng Seed Industry Limited Liability Company XingyiGuizhou ProvinceChina Shandong Facility Horticulture Bioengineering research Center Weifang University of Science and TechnologyWeifangShandong ProvinceChina

Although CRISPR/Cas9 has been widely used in insect gene editing,the need for the microinjection of preblastoderm embryos can preclude the technique being used in insect species with eggs that are small,have hard shells,and/or are difficult to collect and maintain outside of their normal *** is the case with Sogatella furcifera,the white-backed planthopper(WBPH),a significant pest of Oryza sativa(rice)that oviposits inside rice *** extraction from the stem runs the risk of mechanical damage and hatching is heavily influenced by the micro-environment of the rice *** bypass these issues,we targeted embryos prior to oviposition via direct parental(DIPA)-CRISPR,in which Cas9 and single-guide RNAs(sgRNAs)for the WBPH eye pigment gene tryptophan 2,3-dioxygenase were injected into the hemocoel of adult *** at varying numbers of days posteclosion were evaluated to determine at what stage their oocyte might be most capable of taking up the gene-editing *** evaluation of the offspring indicated that the highest G0 gene-edited efficacy(56.7%)occurred in females injected 2 d posteclosion,and that those mutations were heritably transmitted to the G1 *** study demonstrates the potential utility of DIPA-CRISPR for future gene-editing studies in non-model insect species and can facilitate the development of novel pest management applications.

关键词： CRISPR/Cas9 DIPA-CRISPR gene editing tryptophan 2,3-dioxygenase WBPH

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

Genomics,transcriptomics,and peptidomics of the greater wax moth Galleria mellonella neuropeptides and their expression in response to lead stress

引用

Insect Science 2024年第3期31卷 773-791页

作者： Li-Lin Luo Yang Lin Jun-Hong Linghu Wei Gong Yuan-Hong Luo Man Liu Dao-Chao Jin Guy Smagghe Tong-Xian Liu Shun-Hua Gui Tian-Ci Yi guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region Institute of EntomologyGuizhou UniversityGuiyangGuizhouChina guizhou Institute of Biology Guizhou Academy of SciencesGuiyangChina Institute of Plant Health and Medicine Guizhou UniversityGuiyangChina

Neuropeptides are crucial in regulation of a rich variety of developmental,physiological,and behavioral functions throughout the life cycle of *** an integrated approach of multiomics,we identified neuropeptide precursors in the greater wax moth Galleria mellonella,which is a harmful pest of honeybee hives with a worldwide ***,a total of 63 and 67 neuropeptide precursors were predicted and annotated in the *** genome and transcriptome,in which 40 neuropeptide precursors were confirmed in the *** ***,we identified 12 neuropeptide precursor genes present in *** but absent in honeybees,which may be potential novel pesticide target *** hives were contaminated with heavy metals such as lead,enabling its bioaccumulation in *** bodies through the food chain,we performed transcriptome sequencing to analyze the effects of Pb stress on the mRNA expression level of *** neuropeptide *** treatment by Pb,the expression of neuropeptide F1 was found to be significantly downregulated,implying that this neuropeptide might be associated with responding to the heavy metal stress in *** study comprehensively identified neuropeptide precursors in ***,and discussed the effects of heavy metals on insect neuropeptides,with the example of *** results are valuable for future elucidation of how neuropeptides regulate physiological functions in *** and contribute to our understanding of the insect's environmental plasticity and identify potential new biomarkers to assess heavy metal toxicity in insects.

关键词： Galleria mellonella genomics heavy metal stress neuropeptide peptidomics transcriptomics

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

Life-Spans and Blow-Up Rates for aρ-Laplacian Parabolic Equation with General Source

引用

Journal of Partial Differential Equations 2024年第2期37卷 187-197页

作者： LONG Qunfei School of Mathematical Sciences Guizhou Normal UniversityGuiyang 550025China

This article investigates the blow-up results for the initial boundary value problem to the quasi-linear parabolic equation with p-Laplacian■where p≥2 and the function f(u)satisfies■for some positive constantsα,β,γwith 02;a new blow-up condition is given,which holds for p=2;some new lifespans and upper blow-up rates are given under certain conditions.

关键词： p-Laplacian parabolic equation blow-ups life-spans blow-up rates

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

Enrichment characteristics of normal-pressure marine shale gas in the complex tectonic zone: a case study of the Lower Cambrian Niutitang Formation in northern guizhou

引用

Journal of Earth Science 2024年

作者： Wenjibin Sun Zhonghu Wu Yujun Zuo Chao Pan Hao Liu Baofeng Lan Jianyun Lin Bin Chen Qinggang Chen guizhou Energy Industry research Institute Co. Ltd Mining College guizhou university College of Resource and Environmental Engineering guizhou university College of Civil Engineering guizhou university

The Lower Cambrian Niutitang Formation is a crucial stratum for the exploration of normal-pressure marine shale gas in southern China， with great development potential. To research the normal-pressure shale gas accumulation of the Niutitang Formation in the complex tectonic zone， the shale cores in northern guizhou were subjected to X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) observation， and tests were conducted to determine total organic content (TOC)， bitumen reflectance， and nitrogen isotopes. The results indicate that the equivalent vitrinite reflectance of cores varies from 2.30% to 3.73%， and the TOC content of cores varies from 3.8% to 7.8%. The total gas content of three wells in northern guizhou is 0.5 m3/t， 0.3 m3/t， and 1.4 m3/t， respectively. The TOC content of the shale in the syncline structure is higher than that of the shale in the anticline structure. Nitrogen in shale gas originates primarily from the thermal ammoniation of organic matter， the atmosphere， and the deep crust. Shale gas preservation is favourable in regions with a large range of lifting， and small lifting differences. The syncline is broad and gentle with few faults have better gas accumulation conditions. The Niutitang Formation in the residual syncline of the study area has better gas content than that of other structures. Exploration of shale gas accumulation sweet spots in northern guizhou should focus on the broad-gentle synclines with minimal changes in stratigraphic lifting， few faults， and no hydrothermal activity at the edges of paleo-uplifts.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

On monomial algebras with representation-finite enveloping algebras

引用

Acta Mathematica Sinica,English Series 2024年

作者： Jianguo ZHOU Yuzhe LIU Chao ZHANG School of Mathematics and statistics Guizhou University

The present paper mainly considers the representation type of the enveloping algebra of monomial *** A be a monomial algebra and Ae=A?kAopbe its enveloping *** is shown that Aeis representation-finite if and only if A～=An/rad2An,where Anis the path algebra k Q with Q=1-→2-→···-→***,we show that the number of all isoclasses of indecomposable (An/rad2An)e-modules is43n3+n2-73n+1,and classify all indecomposable modules over (An/rad2An)***,the Clebsch-Gordon problem over (A2n/radAn)eis studied.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Embedding Tensors on 3-Hom-Lie Algebras

引用

Journal of Mathematical research with Applications 2024年第2期44卷 187-198页

作者： Wen TENG Jiulin JIN Yu ZHANG School of Mathematics and Statistics Guizhou University of Finance and Economics School of Science Guiyang University

In this paper, we introduce the notion of embedding tensors on 3-Hom-Lie algebras and show that embedding tensors induce naturally 3-Hom-Leibniz algebras. Moreover, the cohomology theory of embedding tensors on 3-Hom-Lie algebras is defined. As an application,we show that if two linear deformations of an embedding tensor on a 3-Hom-Lie algebra are equivalent, then their infinitesimals belong to the same cohomology class in the first cohomology group.

关键词： 3-Hom-Lie algebra embedding tensor representation cohomology deformation

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Error Estimate of Full-Discrete Numerical Scheme for the Nonlocal Allen-Cahn Model

引用

Journal of Mathematical research with Applications 2024年第3期44卷 344-358页

作者： Jun ZHANG Xiaohu YANG Fulin MEI Zhimei JI Yu ZHANG School of Mathematics and Statistics Guizhou University of Finance and Economics The Meteorological Disaster Prevention Center of guizhou Province Xi'an Institute of Applied Optics Financial Department Guizhou University of Finance and Economics

In this work, we study the error estimates of the fully discrete Fourier pseudospectral numerical scheme for solving the nonlocal volume-conserved Allen-Cahn(AC) *** time marching method of the numerical scheme is based on the well-known Invariant Energy Quadratization(IEQ) method. We demonstrate that the proposed fully discrete numerical method is uniquely solvable, unconditionally energy stable, and obtain the optimal error estimate of the scheme for both space and time. Additionally, we conduct several numerical tests to verify the theoretical results.

关键词： nonlocal Allen-Cahn model uniquely solvable unconditionally energy stable error estimate numerical tests

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

The significance of long non-coding RNAs in the pathogenesis,diagnosis and treatment of inflammatory bowel disease

引用

Precision Clinical Medicine 2024年第1期7卷 34-53页

作者： Fei Jiang Min Wu Rongpeng Li Jiangsu Province Engineering research Center of Cardiovascular Drugs Targeting Endothelial Cells School of Life SciencesJiangsu Normal UniversityXuzhou 221000China Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221000China Drug Discovery Section Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou 325000China Department of Neurology Medical College of WisconsinMilwaukeeWI 53226USA

Inflammatory bowel diseases(IBD)are a group of chronic relapsing gastrointestinal inflammatory diseases with significant global *** the pathomechanism of IBD has been extensively investigated,several aspects of its pathogenesis remain *** non-coding RNAs(lncRNAs)are transcripts with more than 200 nucleotides in length that have potential protein-coding *** play important roles in biological processes such as epigenetic modification,transcriptional regulation and posttranscriptional *** this review,we summarize recent advances in research on IBD-related lncRNAs from the perspective of the overall intestinal microenvironment,as well as their potential roles as immune regulators,diagnostic biomarkers and therapeutic targets or agents for IBD.

关键词： lncRNAs inflammatory bowel diseases intestinal barrier intestinal microenvironment immune regulator diagnostic biomarker therapeutic target

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

Engineered extracellular vesicles: A new approach for targeted therapy of tumors and overcoming drug resistance

引用

Cancer Communications 2024年第2期44卷 205-225页

作者： Chen Ming-Kun Chen Zi-Xian Cai Mao-Ping Chen Hong Chen Zhuang-Fei Zhao Shan-Chao Department of Urology The Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongP.R.China The Third Clinical College Southern Medical UniversityGuangzhouGuangdongP.R.China Luoyang Key Laboratory of Organic Functional Molecules College of Food and DrugLuoyang Normal UniversityLuoyangHenanP.R.China Department of Urology Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdongP.R.China

Targeted delivery of anti-tumor drugs and overcoming drug resistance in malig-nant tumor cells remain significant clinical ***,there are only few effective methods to address these *** vesicles(EVs),actively secreted by cells,play a crucial role in intercellular information transmis-sion and cargo *** studies have demonstrated that engineered EVs can serve as drug delivery carriers and showed promising application ***,there is an urgent need for further improvements in the isolation and purification of EVs,surface modification techniques,drug assem-bly processes,and precise recognition of tumor cells for targeted drug delivery *** this review,we summarize the applications of engineered EVs in cancer treatment and overcoming drug resistance,and current challenges asso-ciated with engineered EVs are also *** review aims to provide new insights and potential directions for utilizing engineered EVs as targeted delivery systems for anti-tumor drugs and overcoming drug resistance in the near future.

关键词： drug delivery drug resistance extracellular vesicles nanoparticles

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

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：