检索结果-南通市图书馆

Enhanced hydrogen production activity over BiOX–TiO2 under solar irradiation:Improved charge transfer through bismuth oxide clusters

引用

Journal of Energy Chemistry 2017年第3期26卷 390-397页

作者： Police Anil Kumar Reddy Chennaiahgari Manvitha Pullagurala Venkata Laxma Reddy Ki-Hyun Kim valluri durga kumari Department of Civil&Environmental Engineering Hanyang University222WangsimniRoSeoul 133-791Republic of Korea Inorganic and Physical Chemistry Division Indian Institute of Chemical TechnologyHyderabad 500 607India Sarojini Naidu Vanitha Mahavidyala Osmania UniversityHyderabad 500 001India Program in Environmental Science and Engineering University of Texas El PasoEl PasoTexas 799038USA

A series of titania nanoparticles and nanotubes deposited with various quantities of bismuth（Bi） were prepared via sol-gel and hydrothermal methods, respectively. They were then characterized using X-ray diffraction spectroscopy（XRD）, X-ray photo electron spectroscopy（XPS）, UV–Vis diffused reflectance spectra（DRS）, photoluminescence spectra（PLS）, transmission electron microscopy（TEM）, energy dispersive analysis of X-rays（EDAX）, and BET surface analysis. These catalysts were employed for the photocatalytic production of hydrogen from a mixture of pure water and glycerol under solar light irradiation. The presence of the Bispecies was found to play a vital role in enhancing activity while minimizing electron hole recombination（relative to bare TiO）. The nanotubes exhibited better activity than the nanoparticles of Bi-deposited TiO, showing the significance of the morphology; however, photocatalytic activity is predominantly dependent on the deposition of bismuth. The activity increased by approximately an order of magnitude at the optimum concentration of Bi deposited over TiO（2 wt%）. The presence of the Bispecies played a vital role in minimizing electron hole recombination, resulting in higher activity compared to bare TiO.

关键词： Bismuth TiO2 nanotubes Visible photocatalysis Water splitting Hydrogen

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

Photocatalytic Degradation of Isoproturon Pesticide on C, N and S Doped TiO2

引用

Journal of Water Resource and Protection 2010年第3期2卷 235-244页

作者： Police Anil Kumar Reddy Pulagurla Venkata Laxma Reddy Vutukuri Maitrey Sharma Basavaraju Srinivas valluri durga kumari Machiraju Subrahmanyam 不详

TiO2 doped with C, N and S (TCNS photocatalyst) was prepared by hydrolysis process using titanium iso-propoxide and thiourea. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photo electron spectroscopy (XPS), BET surface area, FTIR and diffuse reflectance spectra (DRS). The results showed that the prepared catalysts are anatase type and nanosized par-ticles. The catalysts exhibited stronger absorption in the visible light region with a red shift in the adsorption edge. The photocatalytic activity of TCNS photocatalysts was evaluated by the photocatalytic degradation of isoproturon pesticide in aqueous solution. In the present study the maximum activity was achieved for TCNS5 catalyst at neutral pH with 1 g L-1 catalyst amount and at 1.14 x 10-4 M concentration of the pesticide solution. The TCNS photocatalysts showed higher phtocatalytic activity under solar light irradiation. This is attributed to the synergetic effects of red shift in the absorption edge, higher surface area and the inhibition of charge carrier recombination process.

关键词： Isoproturon Pesticide Degradation C N and S Doped TiO2 Visible Light Active Catalysts

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

Lipid-nanoparticle-enabled nucleic acid therapeutics for liver disorders

引用

Acta Pharmaceutica Sinica B 2024年第7期14卷 2885-2900页

作者： Porkizhi Arjunan durga Kathirvelu Gokulnath Mahalingam Ashish Kumar Goel Uday George Zacharaiah Alok Srivastava Srujan Marepally Center for Stem Cell Research(A Unit of inStem Bengaluru)Christian Medical College CampusBagayamVellore 632002Tamil NaduIndia Manipal academy for higher education Mangalore 576104KarnatakaIndia Department of Hematology Christian Medical College&HospitalVellore 632004Tamil NaduIndia Department of Hepatology Christian Medical College&HospitalVellore 632004Tamil NaduIndia

Inherited genetic disorders of the liver pose a significant public health *** transplantation is often limited by the availability of donor livers and the exorbitant costs of immunosuppressive *** overcome these limitations,nucleic acid therapy provides a hopeful alternative that enables gene repair,gene supplementation,and gene silencing with suitable *** viral vectors are the most efficient and preferred for gene therapy,pre-existing immunity debilitating immune responses limit their *** a potential alternative,lipid nanoparticle-mediated vectors are being explored to deliver multiple nucleic acid forms,including pDNA,mRNA,siRNA,and ***,we discuss the broader applications of lipid nanoparticles,from protein replacement therapy to restoring the disease mechanism through nucleic acid delivery and gene editing,as well as multiple preclinical and clinical studies as a potential alternative to liver transplantation.

关键词： Lipid nanoparticle Liver disorders Gene therapy Gene editing Nucleic acid delivery pDNA mRNA siRNA ASO Clinical trials

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

Bismuth Modified Porous Silica Preparation,Characterization and Photocatalytic Activity Evaluation for Degradation of Isoproturon

引用

Journal of Materials Science & Technology 2013年第7期29卷 639-646页

作者： Anil Kumar Reddy Police Srinivas Basavaraju durga kumari valluri Subrahmanyam Machiraju Inorganic and Physical Chemistry Division Indian Institute of Chemical TechnologyHyderabad 500607India

Porous silica prepared by using an acrylic emulsion has been impregnated with bismuth ion resulting in Bi2Si05 species containing surface. The as-prepared materials have been characterized by X-ray diffraction spectroscopy （XRD）, X-ray photoelectron spectroscopy （XPS）, UV-Vis diffuse reflectance spectroscopy （UV-Vis DRS）, scanning electron microscopy （SEM）, energy dispersive analysis of X-ray （EDAX）, transmission electron microscopy （TEM）, Fourier transform infrared spectroscopy （FTIR） and N2 adsorption/desorption techniques. EDAX analysis confirms the penetration of bismuth ions into the framework of silica to form Bi2SiO5, which is substantiated by XRD. The UV-Vis DRS shows that the catalysts are optically active and XPS confirms the inclusion of bismuth into the framework of silica. FTIR spectra illustrate the formation of Bi-O-Si linkages in the porous silica framework. SEM and TEM show the spherical morphology, whereas N2 adsorption/desorption study confirms the porosity of the prepared materials. The photocatalytic activity of the material is evaluated for the degradation of isoproturon herbicide and it is found that the material is active as compared to the commercial P-25 Degussa TiO2.

关键词： Acrylic emulsion Emulsion polymerization technique Porous silica Bi2SiO5 Photocatalyfic degradation lsoproturon

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

Attention boosted autoencoder for building energy anomaly detection

引用

Energy and AI 2023年第4期14卷 479-489页

作者： durga Prasad Pydi S.Advaith Department of Mechanical Engineering Indian Institute of Technology MadrasChennai600036India

Significant energy savings can be realised from buildings if deviations from the usual operating conditions are detected early,and appropriate measures are *** anomaly detection techniques automate identifying such instances by leveraging the high dimensional data collected from the installed smart *** allow for dimensionality reduction and also model the underlying data ***,these models treat features as independent *** contrast,the current work investigates an attention mechanism with an autoencoder to include the correlations among the *** value addition from the attention mechanism is demonstrated by comparing the model’s reconstruction ability with an ANN-based autoencoder on synthetic *** study identifies that adding an attention layer enables the encoder–decoder architecture to be robust to outliers in training data,thereby reducing the preprocessing ***,the model is tested on a real-world dataset,and the attention maps generated from the model are used to interpret the correlations among the features and across the time dimension,thereby establishing a human-interpretable way to understand the reconstruction from the model.

关键词： Artificial intelligence UN Sustainable Development Goals Interpretable model Multivariate time series HVAC

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

Dynamics of additional food provided predator-prey system with habitat fragmentation

引用

International Journal of Biomathematics 2023年第4期16卷 45-80页

作者： K.durga Prasad B.S.R.V.Prasad Department of Mathematical and Computational Sciences Sri Sathya Sai University for Human Ercellence Kamalapur KalaburagiKarnataka 585313India Department of Mathematics School of Advanced Sciences VIT(Deemed to be University)Vellore Tamilnadu 632014India

Due to human-caused deforestation,global warming,and other environmental factors,habitat fragmentation became *** fragmentation has a variety of detrimental repercussions for many species as well as humans,especially in the agricultural *** causes insect outbreaks,the expansion of alien species,and disrupts biological management by rendering the habitat unsuitable for natural enemies in *** natural enemies with additional food is one method to improve the ecosystem and support *** this study,we assumed that the ecosystem is separated into two patches and that predators can easily migrate from one patch to the next,while prey stays inside its patch's *** looked at the impact of offering more food to predators in a patchy environment using dynamical systems *** permanence,stability,and various bifurcations that occur in the system are studied using a rigorous mathematical *** study looks at how predator's access to other food sources affects pest *** adjusting the provided food's characteristic qualities,such as(nutritional)quality and quantity,one can limit and manage the pest in one or both patches,as well as eliminate predators from the *** research reveals that providing predators with additional food(of specified quality and quantity)can help in controlling chaotic behavior in the *** findings of the study are supported by numerical simulations.

关键词： Pest predator additional food habitat fragmentation Hopf bifurcation chaos biological control

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

An integrated fuzzy production inventory model for manufacturer–retailer coordination under simple carbon tax system

引用

Journal of Management Analytics 2023年第1期10卷 38-88页

作者： G.durga Bhavani G.S.Mahapatra Akhilesh Kumar Department of Mathematics National Institute of Technology PuducherryKaraikalIndia Department of Mathematics Arignar Anna Government Arts and Science CollegeKaraikalIndia

This paper develops twin models towards integrated production inventory planning for manufacturer–retailer ecosystem in a sustainable supply chain ***-making models are developed in fuzzy environment and under purview of carbon taxation *** conception of Fermatean fuzzy numbers is introduced for handling parameters *** first model addresses planning problem without considering green investments,whereas the second one additionally identifies optimal green investments for each player of *** are formulated as nonlinear optimization problems with objective of maximizing *** of results from both models enables decision-makers to figure out the profitability of green investment *** instance with data from the existing literature is solved using Mathematica *** results for studied case report profitability of green investments for supply chain partners and significant reduction in carbon emissions as *** analysis demonstrates stability of the proposed *** models equip small-scale retailer-manufacture tie-ups prevalent in developing economies for discussed decisions.

关键词： sustainable supply chain carbon emission reduction production and inventory systems green investments organic ingredients Fermatean fuzzy numbers

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

Anti-thymocyte globulin for treatment of T-cell-mediated allograft rejection

引用

World Journal of Transplantation 2023年第6期13卷 299-308页

作者： Sumit Acharya Suraj Lama durga Anil Kanigicherla Department of Nephrology Shahid Dharmabhakta National Transplant CenterBhaktapur 44800Nepal Department of Renal Medicine Manchester University NHS Foundation TrustManchester M139WLUnited Kingdom

Anti-thymocyte globulin(ATG)is a pivotal immunosuppressive therapy utilized in the management of T-cell-mediated rejection and steroid-resistant rejection among renal transplant *** available as Thymoglobulin(rabbit-derived,Sanofi,United States),ATG-Fresenius S(rabbit-derived),and ATGAM(equine-derived,Pfizer,United States),these formulations share a common mechanism of action centered on their interaction with cell surface markers of immune cells,imparting immunosuppressive *** the prevailing mechanism predominantly involves T-cell depletion via the complement-mediated pathway,alternate mechanisms have been *** dosing and treatment duration of ATG have exhibited variance across randomised trials and clinical reports,rendering the establishment of standardized guidelines a *** spectrum of risks associated with ATG administration spans from transient adverse effects such as fever,chills,and skin rash in the acute phase to long-term concerns related to immunosuppression,including susceptibility to infections and *** comprehensive review aims to provide a thorough exploration of the current understanding of ATG,encompassing its mechanism of action,clinical utility in the treatment of acute renal graft rejections,specifically steroid-resistant cases,efficacy in rejection episode reversal,and a synthesis of findings from different eras of maintenance ***,it delves into the adverse effects associated with ATG therapy and its impact on long-term graft ***,the review underscores the existing gaps in evidence,particularly in the context of the Banff classification of rejections,and highlights the challenges faced by clinicians when navigating the available literature to strike the optimal balance between the risks and benefits of ATG utilization in renal transplantation.

关键词： Anti-thymocyte globulin T-cell-mediated rejection Steroid-resistant rejection Biopsy confirmed acute rejection

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

New Concepts on Quadripartitioned Bipolar Single Valued Neutrosophic Graph

引用

Computer Modeling in Engineering & Sciences 2022年第1期130卷 559-580页

作者： S.Satham Hussain G.Muhiuddin N.durga D.Al-Kadi PG and Research Department of Mathematics Jamal Mohamed College(Autonomus)Tiruchirappalli620020India Department of Mathematics University of TabukTabuk71491Saudi Arabia Division of Mathematics School of Advanced SciencesVellore Institute of Technology-Chennai CampusChennai600127India Department of Mathematics and Statistic College of ScienceTaif UniversityTaif21944Saudi Arabia

The partition of indeterminacy function of the neutrosophic set into the contradiction part and the ignorance part represent the quadripartitioned single valued neutrosophic *** this work,the new concept of quadripartitioned bipolar single valued neutrosophic graph is established,and the operations on it are *** Cartesian product,cross product,lexicographic product,strong product and composition of quadripartitioned bipolar single valued neutrosophic graph are *** proposed concepts are illustrated with examples.

关键词： Quadripartitioned bipolar single valued neutrosophic graph operations of quadripartitioned bipolar single valued neutrosophic graph Cartesian product

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

Thermal and Electrical Properties of Liquid Metal Gallium During Phase Transition

引用

Transactions of Tianjin University 2023年第3期29卷 209-215页

作者： Xizu Wang durga Venkata Maheswar Repaka Ady Suwardi Qiang Zhu Jing Wu Jianwei Xu Institute of Materials Research&Engineering Agency for ScienceTechnology and Research(A*STAR)Singapore 138632Singapore Institute of Sustainability for Chemicals Energy and EnvironmentAgency for ScienceTechnology and Research(A*STAR)Singapore 627833Singapore

Liquid metal gallium has been widely used in numerous fields, from nuclear engineering, catalysts, and energy storage to electronics owing to its remarkable thermal and electrical properties along with low viscosity and nontoxicity. Compared with high-temperature liquid metals, room-temperature liquid metals, such as gallium(Ga), are emerging as promising alternatives for fabricating advanced energy storage devices, such as phase change materials, by harvesting the advantageous properties of their liquid state maintained without external energy input. However, the thermal and electrical properties of liquid metals at the phase transition are rather poorly studied, limiting their practical applications. In this study, we reported on the physical properties of the solid–liquid phase transition of Ga using a custom-designed, solid–liquid electrical and thermal measurement system. We observed that the electrical conductivity of Ga progressively decreases with an increase in temperature. However, the Seebeck coefficient of Ga increases from 0.2 to 2.1 μV/K, and thermal conductivity from 7.6 to 33 W/(K·m). These electrical and thermal properties of Ga at solid–liquid phase transition would be useful for practical applications.

关键词： Liquid metal Gallium Electrical conductivity Thermal conductivity Seebeck coefficients Phase transition

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：