检索结果-南通市图书馆

Review of natural products with hepatoprotective effects

World journal of Gastroenterology 2014年第40期20卷 14787-14804页

作者： Eduardo Madrigal-Santillán Eduardo Madrigal-Bujaidar Isela álvarez-González María Teresa Sumaya-Martínez josé Gutiérrez-Salinas Mirandeli Bautista ángel Morales-González Manuel García-Luna y González-Rubio j leopoldo aguilar-faisal josé A Morales-González Laboratorio Medicina de Conservación Escuela Superior de Medicina Instituto Politécnico Nacional Plan de San Luis y Díaz Mirón Col. Casco de Santo Tomás Del. Miguel Hidalgo México DF 11340 México Laboratorio de Genética Escuela Nacional de Ciencias Biológicas Instituto Politécnico Nacional Unidad profesional Adolfo López Mateos Col. Lindavista Delegación Gustavo A. Madero México DF 07738 México Secretaria de Investigación y Estudios de Posgrado Universidad Autónoma de Nayarit "Ciu-dad de la Cultura Amado Nervo" Nayarit 28000 México Laboratorio de Bioquímica y Medicina Experimental División de Investigación Biomédica Centro Médico Nacional "20 de Noviembre" ISSSTE México DF 03100 México área Académica de Farmacia Instituto de Ciencias de la Salud UAEH Pachuca Hidalgo 42000 México Escuela Superior de Cómputo Instituto Politécnico Nacional Av. Juan de Dios Bátiz s/n esquina Miguel Othón de Mendizabal Unidad Profesional Adolfo López Mateos México DF 07738 Mexico Facultad de Odontología UNAM México DF 04510 Mexico

The liver is one of the most important organs in the body,performing a fundamental role in the regulationof diverse processes,among which the metabolism,secretion,storage,and detoxification of endogenous and exogenous substances are *** to these functions,hepatic diseases continue to be among the main threats to public health,and they remain problems throughout the *** enormous advances in modern medicine,there are no completely effective drugs that stimulate hepatic function,that offer complete protection of the organ,or that help to regenerate hepatic ***,it is necessary to identify pharmaceutical alternatives for the treatment of liver diseases,with the aim of these alternatives being more effective and less *** use of some plants and the consumption of different fruits have played basic roles in human health care,and diverse scientific investigations have indicated that,in those plants and fruits so identified,their beneficial effects can be attributed to the presence of chemical compounds that are called *** present review had as its objective the collecting of data based on research conducted into some fruits(grapefruit,cranberries,and grapes)and plants[cactus pear(nopal)and cactus pear fruit,chamomile,silymarin,and spirulina],which are consumed frequently by humans and which have demonstrated hepatoprotective capacity,as well as an analysis of a resin(propolis)and some phytochemicals extracted from fruits,plants,yeasts,and algae,which have been evaluated in different models of hepatotoxicity.

关键词： Hepatoprotection Grapefruit Vaccinium spp Vitis vinifera L Opuntia ficus-indica Spirulina Propolis Glucans Alcoholic liver disease

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

A review of recent advancements in finite element formulation for sandwich plates

引用

Chinese journal of Aeronautics 2019年第4期32卷 785-798页

作者： Shehzaib IRFAN faisal SIDDIQUI Aerospace Engineering Department College of Aeronautical Engineering National University of Sciences and TechnologyRisalpur

Use of composite structures is exponentially growing in different fields due to their higher strength-to-weight ratio. This application trend requires that accurate theoretical explanations and their finite element models be developed for analyzing sandwich plates before finalizing the designs. This paper reviews the recent research trends of finite element formulations developed for analyzing sandwich plates. This paper reviews the finite element models developed after the year 2000. Initially, the finite element formulations based on first order shear deformation theory, higher order shear deformation theories, mixed solid-shell elements, zig-zag theories and global–local theories are presented. Then, some finite element formulations developed to analyze a very new class of structures called piezoelectric structures are presented. At the end, some formulations to analyze a very critical phenomenon called buckling are presented.

关键词： Buckling Finite element FSDT HSDT Laminated composites Piezoelectric Sandwich plates Zig-zag theory

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

A pulse shape discrimination of CsI(Tl) crystal with ~6He beam

引用

Nuclear Science and Techniques 2010年第1期21卷 35-38页

作者： faisal jamil-Qureshi School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University

The performance test of a CsI(Tl) crystal (70×27×23 mm3) was performed by applying the pulse shape discrimination technique for identification of light charged particles .The crystal is coupled to a photomultiplier tube during an experiment with 6He *** pulse waveform is fully recorded by employing a high precision digital *** fast and slow gates are used for the pulse shape discrimination and the best values for the gate widths were determined to be 0.5 μs and 1.67 μs,*** 6He,4He and 3He are successfully discriminated with this technique.

关键词：脉冲形状甄别次级束流晶体 CsI TI 识别技术光电倍增管数字示波器

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

Application of Micronutrients in Rice-Wheat Cropping System of South Asia

引用

Rice science 2019年第6期26卷 356-371页

作者： faisal NADEEM Muhammad FAROOQ Department of Agronomy University of Agriculture Faisalabad 38040 Pakistan Department of Crop Science College of Agricultural and Marine Sciences Sultan Qaboos University Al-Khoudh 123 Oman

Rice-wheat cropping system (RWCS) is one of the most important cropping systems in South Asia. However, sustainability of this system is under threat owing to several factors, of which deficiency of micronutrients particularly zinc (Zn), boron (B) and manganese (Mn) is one of the major problems. Continuous rotation of rice and wheat, imbalanced fertilizer use and little/no use of micronutrient-enriched fertilizers induce deficiencies of Zn, B and Mn in the RWCS of South Asia. Here we review that (i) imbalanced fertilizer use and organic matter depletion deteriorate soil structure resulting in low efficiency of applied macro- and micro-nutrients in RWCS.(ii) The micronutrients (Zn, B and Mn) are essentially involved in metabolism of rice and wheat plants, including chlorophyll synthesis, photosynthesis, enzyme activation and membrane integrity.(iii) Availability and uptake of Zn, B and Mn from rhizosphere depend on the physico-chemical soil properties (which differ under aerobic and anaerobic conditions) including soil pH, soil organic matter, soil moisture and interaction of these micronutrients with other nutrients.(iv) Plant ability to uptake and utilize the nutrients is affected by several plant factors such as root architecture, root hairs, transport kinetics parameter and root exudates.(v) Crop management and application of these microelements can help correct the micronutrients deficiency and enhance their grain concentration.

关键词： micronutrient deficiency rice-wheat cropping system agronomic approach

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

A comprehensive survey on weed and crop classification using machine learning and deep learning

引用

Artificial Intelligence in Agriculture 2024年第3期13卷 45-63页

作者： faisal Dharma Adhinata Wahyono Raden Sumiharto Department of Computer Science and Electronics Faculty of Mathematic and Natural SciencesUniversitas Gadjah MadaYogyakartaIndonesia Faculty of Informatics Institut Teknologi Telkom PurwokertoCentral JavaIndonesia

Machine learning and deep learning are subsets of Artificial Intelligence that have revolutionized object detection and classification in images or *** technology plays a crucial role in facilitating the transition from conventional to precision agriculture,particularly in the context of weed *** agriculture,which previously relied on manual efforts,has now embraced the use of smart devices for more efficient weed ***,several challenges are associated with weed detection,including the visual similarity between weed and crop,occlusion and lighting effects,as well as the need for early-stage weed ***,this study aimed to provide a comprehensive review of the application of both traditional machine learning and deep learning,as well as the combination of the two methods,for weed detection across different crop *** results of this review show the advantages and disadvantages of using machine learning and deep ***,deep learning produced superior accuracy compared to machine learning under various *** learning required the selection of the right combination of features to achieve high accuracy in classifyingweed and crop,particularly under conditions consisting of lighting and early growth ***,a precise segmentation stage would be required in cases of *** learning had the advantage of achieving real-time processing by producing smaller models than deep learning,thereby eliminating the need for additional ***,the development of GPU technology is currently rapid,so researchers are more often using deep learning for more accurate weed identification.

关键词： Deep learning Machine learning Precision agriculture Weed control Weed detection

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

Superplastic deformation behavior of Mg alloys: A-review

引用

journal of Magnesium and Alloys 2022年第1期10卷 107-121页

作者： faisal Nazeer jianyu Long Zhe Yang Chuan Li School of Mechanical Engineering Dong guan University of TechnologyDongguan 523808China

The magnesium alloys are the next-generation lightweight metal materials;however, the production of the complex shape components of thermo-mechanical processed magnesium alloys is very limited in comparison to their die-casted counterparts. Both high strain rate and low-temperature processing are required to save time and cost for the project. Uniaxial tensile testing has been vastly used for determining the plasticity of magnesium alloys at elevated temperatures. Therefore, this review article sheds light on superplastic behaviors under the uniaxial tensile loading of different magnesium alloys. This review also emphasizes low and high-temperature superplasticity, high strain rate superplasticity, deformation mechanism, thermal stability, texture evaluation, and fracture mechanism of extruded/rolled and severe plastic deformed magnesium alloys. At the end of the review, some technical issues have been addressed which can be beneficial for further enhancement in the superplasticity of magnesium alloys.

关键词： Superplasticity LTSP HSRSP Thermal stability Texture Fracture

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

Development of multi-physics numerical simulation model to investigate thermo-mechanical fatigue crack propagation in an autofrettaged gun barrel

引用

Defence Technology（防务技术） 2021年第5期17卷 1579-1591页

作者： Naveed Hussain faisal Qayyum Riffat Asim Pasha Masood Shah Department of Mechanical Engineering University of Engineering and TechnologyTaxilaPakistan Institut für Metallformung Technische Universitat BeragakademieFreibergGermany

In this research,a detailed multi-physics study has been carried out by numerically simulating a solid fractured gun barrel for 20 thermo-mechanical *** numerical model is based on thermal effects,mechanical stress fields and fatigue crack ***-plastic material data of modified AISI 4340 at temperatures ranging from 25 to 1200℃and at strain rates of 4,16,32 and 48 s^(-1) was acquired from high-temperature compression *** was used as material property data in the simulation *** boundary conditions applied are kept similar to the working gun barrel during continuous firing.A methodology has been provided to define thermo-mechanically active surface-to-surface type interface between the crack faces for a better approximation of stresses at the crack *** of results from non-autofrettaged and autofrettaged simulation models provide useful information about the evolution of strains and stresses in the barrel at different points under combined thermo-mechanical loading cycles in both *** effect of thermal fatigue under already induced compressive yield due to autofrettage and the progressive degradation of the accumulated stresses due to thermo-mechanical cyclic loads on the internal surface of the gun barrel(mimicking the continuous firing scenario)has been *** between energy release rate at tips of varying crack lengths due to cyclic thermo-mechanical loading in the non-autofrettaged and autofrettaged gun has been carried out.

关键词： Steel Autofrettage Gun barrel Crack propagation Thermo-mechanical fatigue Numerical simulation Residual stress dissipation

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

COLONIZATION OF VIGNA RADIATA ROOTS BY CHROMIUM RESISTANT BACTERIAL STRAINS OF OCHROBACTRUM INTERMEDIUM,BACILLUS CEREUS AND BREVIBACTERIUM SP.

引用

应用与环境生物学报 2005年第5期11卷 528-530页

作者： MUHAMMAD faisal SHAHIDA Hasnain Department of Botany University of the Punjab Quaid-e-Azam Campus Lahore-54590PakistanDepartment of BotanyUniversity of the Punjab Quaid-e-Azam Campus Lahore-54590Pakistan

The present study deals with colonization potential of plant growth promoting bacterial strains (Ochrobactrum intermedium, Bacillus cereus and Brevibacterium sp.) on Vigna radiata roots. The roots were heavily colonized with O. intermedium and B. cereus as compared to Brevibacterium sp. O. intermedium mainly colonized rhizoplane while B. cereus occurred both on the rhizoplane and near root zone. O. intermedium and B. cereus were found to be present both on the rhizoplane and near root zone, while Brevibacterium only in the rhizosphere in the form of groups. The cells of B. cereus were found more in the sites where root exudates were existed. From the above results it was observed that the number of O. intermedium cells were large at root exudate site. Fig 2, Tab 1, Ref

关键词：豇豆辐射动物铬元素细菌感染仙人掌环境生物学

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

Mesoporous WO_3-graphene photocatalyst for photocatalytic degradation of Methylene Blue dye under visible light illumination

引用

journal of Environmental Sciences 2018年第4期30卷 328-337页

作者： Adel A.Ismail M.faisal Adel Al-Haddad Wastewater Treatment and Reclamation Technologies (WTRT) Water Research Center Kuwait Institute for Scientific Research Advanced Materials and Nano-Research Centre Najran University

Advanced oxidation technologies are a friendly environmental approach for the remediation of industrial wastewaters. Here, one pot synthesis of mesoporous WO3 and WO3-graphene oxide（GO） nanocomposites has been performed through the sol–gel method. Then, platinum（Pt） nanoparticles were deposited onto the WO3 and WO3-GO nanocomposite through photochemical reduction to produce mesoporous Pt/WO3 and Pt/WO3-GO nanocomposites. X-ray diffraction（XRD） findings exhibit a formation of monoclinic and triclinic WO3 phases. Transmission Electron Microscope（TEM） images of Pt/WO3-GO nanocomposites exhibited that WO3 nanoparticles are obviously agglomerated and the particle sizes of Pt and WO3 are ~ 10 nm and 20–50 nm, respectively. The mesoporous Pt/WO3 and Pt/WO3-GO nanocomposites were assessed for photocatalytic degradation of Methylene Blue（MB） as a probe molecule under visible light *** findings showed that mesoporous Pt/WO3, WO3-GO and Pt/WO3-GO nanocomposites exhibited much higher photocatalytic efficiencies than the pure WO3. The photodegradation rates by mesoporous Pt/WO3-GO nanocomposites are 3, 2 and 1.15 times greater than those by mesoporous WO3, WO3-GO, and Pt/WO3, respectively. The key factors of the enhanced photocatalytic performance of Pt/WO3-GO nanocomposites could be explained by the highly freedom electron transfer through the synergetic effect between WO3 and GO sheets, in addition to the Pt nanoparticles that act as active sites for O2 reduction, which suppresses the electron hole pair recombination in the Pt/WO3-GO nanocomposites.

关键词： Mesoporous Pt/WO3 nanocomposites Graphene oxide Methylene Blue photodegradation Visible light

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

Defining failure of endoluminal biliary drainage in the era of endoscopic ultrasound and lumen apposing metal stents

引用

World journal of Gastroenterology 2024年第29期30卷 3534-3537页

作者： faisal S Ali Sushovan Guha Department of Gastroenterology Hepatologyand NutritionUniversity of Texas Health Science Center at HoustonHustonTX 77054United States Department of Clinical Sciences Tilman J.Fertitta Family College of MedicineUniversity of HoustonHoustonTX 77204United States

The role of endoscopy in pathologies of the bile duct and gallbladder has seen notable advancements over the past two *** advancements in stent technology,such as the development of lumen-apposing metal stents,and adoption of endoscopic ultrasound and electrosurgical principles in therapeutic endoscopy,what was once considered endoscopic failure has transformed into failure of an approach that could be salvaged by a second-or third-line endoscopic *** of these advancements in routine patient care will require formal training and multidisciplinary acceptance of established techniques and collaboration for advancement of experimental techniques to generate robust evidence that can be utilized to serve patients to the best of our ability.

关键词： Endoscopic ultrasound Guided biliary drainage Gallbladder Biliary obstruction Lumen-apposing metal stent

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：