检索结果-南通市图书馆

Wave profile analysis of a couple of(3+1)-dimensional nonlinear evolution equations by sine-Gordon expansion approach

引用

Journal of Ocean Engineering and Science 2022年第3期7卷 272-279页

作者： md.rezwan ahamed fahim Purobi Rani Kundu md.Ekramul Islam M.Ali Akbar M.S.Osman Department of Mathematics Pabna University of Science and TechnologyBangladesh Department of Applied Mathematics University of RajshahiBangladesh Department of Mathematics Faculty of ScienceCairo UniversityGiza 12613Egypt Department of Mathematics Faculty of Applied ScienceUmm Alqura UniversityMakkah 21955Saudi Arabia

The(3+1)-dimensional Kadomtsev-Petviashvili and the modified KdV-Zakharov-Kuznetsov equations have a significant impact in modern science for their widespread applications in the theory of long-wave propagation,dynamics of shallow water wave,plasma fluid model,chemical kinematics,chemical engineering,geochemistry,and many other *** this article,we have assessed the effects of wave speed and physical parameters on the wave contours and confirmed that waveform changes with the variety of the free factors in *** a result,wave solutions are extensively analyzed by using the balancing condition on the linear and nonlinear terms of the highest order and extracted different standard wave configurations,containing kink,breather soliton,bell-shaped soliton,and periodic *** extract the soliton solutions of the high-dimensional nonlinear evolution equations,a recently developed approach of the sine-Gordon expansion method is used to derive the wave solutions *** sine-Gordon expansion approach is a potent and strategic mathematical tool for instituting ample of new traveling wave solutions of nonlinear *** study established the efficiency of the described method in solving evolution equations which are nonlinear and with higher dimension(HNEEs).Closed-form solutions are carefully illustrated and discussed through diagrams.

关键词： Sine-Gordon expansion approach Kadomtsev-Petviashvili equation modified KdV-Zakharov-Kuznetsov equation soliton solutions

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

Pharmacokinetics and Bioequivalence of Dienogest in Healthy Bangladeshi Female Volunteers: An Open-Label, Single-Dose, Randomized, Two-Way Crossover Study

引用

Open Journal of Obstetrics and Gynecology 2024年第5期14卷 779-789页

作者： Nusrat Mahmud Nafisa ahamed Uttom Kumar Bhowmik Sabrina Akter Tushi Nayan Ghosh Nithon Chandra Sahana Arifa Akram md. Alimur Reza BIRDEM General Hospital Dhaka Bangladesh Medical College for Women & Hospital Dhaka Bangladesh Novus Clinical Research Services Ltd. Dhaka Bangladesh National Institute of Laboratory Medicine & Referral Centre (NILMRC) Dhaka Bangladesh

Background: Dienogest is a potential treatment for pelvic pain associated with endometriosis, a condition of significant concern in gynaecology. The current study was conducted as a crossover-randomized bioequivalence assessment of two oral Dienogest 2 mg formulations, aiming to provide valuable insights for healthcare professionals and researchers in this field. Objective: The primary aim of this research was to evaluate and compare the pharmacokinetic characteristics of Dienogest 2 mg tablets. Dinogest (Dienogest 2 mg) tablets, manufactured by Nuvista Pharma Limited in Bangladesh, and Visanne (Dienogest 2 mg) tablets, manufactured by Bayer Pharma in Germany, were the test and reference formulations, respectively. Materials and Method: The study was an open-label, balanced, randomized, two treatments, two sequences, two periods, two-way crossover, laboratory blind, single oral dose bioequivalence study conducted in healthy adult females under fasting conditions. The study was carried out on 13 healthy, non-pregnant female subjects, and all the subjects completed both study periods with a 15-day washout in between. Randomization was used to assign the test and reference formulations to the subjects. Following each oral administration, a series of blood samples were obtained at different time intervals from pre-dose to 72 hours post-dose and analyzed for Dienogest concentrations using a validated bio-analytical method. A standard non-compartmental model was used to analyze the pharmacokinetic parameters. The primary pharmacokinetic parameters were peak plasma drug concentration (Cmax), the area under the plasma concentration-time curve from time zero to time t (AUC0–t), and AUC from t = 0 to infinity (AUC0–∞). The other PK parameters included time to reach Cmax (Tmax), terminal elimination rate constant (Kel), and half-life (t1/2). Result: The ratios and 90% CI for the geometric mean test/re

关键词： Dienogest Bioequivalence Study Endometriosis Novus CRSL

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

Screening and Assessment of Selected Chilli (Capsicum annuum L.) Genotypes for Drought Tolerance at Seedling Stage

引用

Phyton-International Journal of Experimental Botany 2021年第5期90卷 1425-1443页

作者： md.rezwan Molla md.Motiar Rohman Mahmuda Binte Monsur Mirza Hasanuzzaman Lutful Hassan Plant Genetic Resources Centre Bangladesh Agricultural Research InstituteGazipur1701Bangladesh Molecular Breeding Laboratory Plant Breeding DivisionBangladesh Agricultural Research InstituteGazipur1701Bangladesh Department of Agronomy Faculty of AgricultureSher-e-Bangla Agricultural UniversityDhaka1207Bangladesh Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh2202Bangladesh

This study was undertaken to investigate oxidative stress tolerant mechanisms in chilli(Capsicum annuum L.)under drought genotypes through evaluating morphological,physiological,biochemical and stomatal *** genotypes were evaluated for their genetic potential to drought stress tolerant at seedling *** days old seedlings were exposed to drought stress induced by stop watering for the following 10 days and rewatering for the following one week as *** on their survival performance,two tolerant genotypes ***-10906 and BD-109012 and two susceptible genotypes ***-10902 and RT-20 were selected for studying the oxidative stress tolerance *** reduced root and shoot length,dry weight,ratio,petiole weight and leaf area in both tolerant and susceptible genotypes,and a higher reduction was observed in susceptible *** reduction of leaf area and photosynthetic pigments were also found in tolerant ***,tolerant genotypes showed higher recovery than susceptible genotypes after the removal of stress.A higher reduction of relative water content(RWC)may cause an imbalance between absorbed and transpirated water in susceptible *** accumulation of proline in tolerant genotypes might be helpful to for better osmotic maintenance than that in susceptible *** genotypes showed higher antioxidant activity as they showed DPPH radical scavenging percentage than the susceptible ***,closer stomata in tolerant genotypes than susceptible ones helped to avoid dehydration in tolerant ***,the above morphological,physiological,biochemical and stomatal parameters helped to show better tolerance in chilli under drought stress.

关键词： Chilli drought stress tolerance morphology physiology biochemical altern

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

Data-driven next-generation smart grid towards sustainable energy evolution: techniques and technology review

引用

Protection and Control of Modern Power Systems 2023年第3期8卷 97-138页

作者： Faiaz Ahsan Nazia Hasan Dana Subrata K.Sarker Li Li S.M.Muyeen md.Firoj Ali Zinat Tasneem md.Mehedi Hasan Sarafat Hussain Abhi md.Robiul Islam md.Hafiz ahamed md.Manirul Islam Sajal K.Das md.Faisal R.Badal Prangon Das Department of Mechatronics Engineering Rajshahi University of Engineering and TechnologyRajshahiBangladesh School of Electrical and Data Engineering Faculty of Engineering and ITUniversity of Technology SydneyUltimoAustralia Electrical Engineering Department Qatar UniversityDohaQatar

Meteorological changes urge engineering communities to look for sustainable and clean energy technologies to keep the environment safe by reducing CO_(2) *** structure of these technologies relies on the deep inte-gration of advanced data-driven techniques which can ensure efficient energy generation,transmission,and *** conducting thorough research for more than a decade,the concept of the smart grid(SG)has emerged,and its practice around the world paves the ways for efficient use of reliable energy ***,many developing features evoke keen interest and their improvements can be regarded as the next-generation smart grid(NGSG).Also,to deal with the non-linearity and uncertainty,the emergence of data-driven NGSG technology can become a great initiative to reduce the diverse impact of *** paper exhibits the conceptual framework of NGSG by enabling some intelligent technical features to ensure its reliable operation,including intelligent control,agent-based energy conversion,edge computing for energy management,internet of things(IoT)enabled inverter,agent-oriented demand side management,***,a study on the development of data-driven NGSG is discussed to facilitate the use of emerging data-driven techniques(DDTs)for the sustainable operation of the *** prospects of DDTs in the NGSG and their adaptation challenges in real-time are also explored in this paper from various points of view including engineering,technology,et ***,the trends of DDTs towards securing sustainable and clean energy evolution from the NGSG technology in order to keep the environment safe is also studied,while some major future issues are *** paper can offer extended support for engineers and researchers in the context of data-driven technology and the SG.

关键词： Data-driven technology Smart grid Sustainable energy evolution Next-generation smart grid Intelligent

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

Next-generation blockchain enabled smart grid: Conceptual framework, keytechnologies and industry practices review

引用

能源与人工智能(英文) 2023年第2期12卷 187-205页

作者： Shekh S.Uddin Rahul Joysoyal Subrata K.Sarker S.M.Muyeen md.Firoj Ali md.Mehedi Hasan Sarafat Hussain Abhi md.Robiul Islam md.Hafiz ahamed md.Manirul Islam Sajal K.Das md.Faisal R.Badal Prangon Das Zinat Tasneem Department of Mechatronics Engineering Rajshahi University of Engineering&TechnologyRajshahi 6204Bangladesh Department of Electrical Engineering Qatar UniversityQatar

Technological advancements in smart grid energy systems (SGESs) are introducing sustainable frameworksto meet the demand for the fourth industrial energy revolution. These frameworks are planned to be usedin the forthcoming future to maintain the energy network operation with optimization, energy trading, gridautomation, and so on. Blockchain (BCn), developing after passing a diverse period of the research journey,comes to the mind of researchers and its integration in SGES paves the way to reach the goal of energydemand. However, still of interest is ongoing in the improvement of BCn features which can be regarded asthe next-generation blockchain framework. This paper exhibits the technical framework of the next-generationBCn framework and explores its benefits and challenges in performing the emerging aspects of SGES. Thisframework enables some advanced features for the sustainable operation of SGES like smart metering, peer-topeer (P2P) energy trading, self-operation, and transparency. The technical explanation of this BCn technologyestablished on essential features and requisites is also presented in this paper from various points of viewwhich include smart mechanism, intelligent storage system, and interoperability. We also highlight the recentprogress and limitations of the current BCn framework in SGES. Finally, some challenges towards integratingthe next-generation BCn technology in SGES are reported. This work can provide extended support for thepractitioner and researcher in the context of BCn technology and SGES.

关键词： Blockchain Smart grid energy system Smart contract

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

Towards electric digital twin grid: Technology and framework review

引用

能源与人工智能(英文) 2023年第1期11卷 179-195页

作者： md.Mhamud Hussen Sifat Safwat Mukarrama Choudhury Sajal K.Das md.Hafiz ahamed S.M.Muyeen md.Mehedi Hasan md.Firoj Ali Zinat Tasneem md.Manirul Islam md.Robiul Islam md.Faisal R.Badal Sarafat H.Abhi Subrata K.Sarker Prangon Das Department of Mechatronics Engineering Rajshahi University of Engineering&TechnologyRajshahi6204Bangladesh Department of Electrical Engineering Qatar UniversityDoha2713Qatar

The major hindrances in the energy system are ecological consciousness, lack of clean and sustainableenergy management, insufficient energy distribution–transmission–optimization, expensive power transfercosts, and increased customer knowledge of energy charges. Thus why, universal access to the grid with highcybersecurity, and reliability is needed to solve all these challenges. The digital twin concept turns a newdimension of technology into the world. Electric Digital Twin grid can perform online analysis of the grid inreal-time and integrates all the past and present data and express the current grid status to the producers andconsumers and also predicts the future grid status. Thus, the power grid transmission loss and location of theoverheated line and power connection missing can be detected in addition decision-making and self-healingcan possible. The future prediction saves the power grid from small to long accidents such as power outagesand even blackout problems. The whole consumers and nation feel relief from these types of accidents andsaves from large economic and business loss. The blockchain-enabled digital twin grid provides high securityfor the grid from cyberattacks. The paper conveys the framework of the electric digital twin grid and theconcept of the DT grid processing and the way of serving the producer, prosumers, consumers even the wholenation in infrastructure, education, research, economic, business, and political development.

关键词： Electric digital twin grid Online analysis of grid Cloud platform of grid Real-time grid analysis Self-healing Cybersecurity

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 quasi-steady state model for predicting the heating requirements of conventional greenhouses in cold regions

引用

Information Processing in Agriculture 2018年第1期5卷 33-46页

作者： md Shamim ahamed Huiqing Guo Karen Tanino Division of Environmental Engineering University of SaskatchewanCanada Department of Mechanical Engineering University of SaskatchewanCanada Department of Plant Sciences University of SaskatchewanCanada

A time-dependent,quasi-steady state thermal model(GREENHEAT)based on the lumped estimation of heat transfer parameters of greenhouses has been developed to predict the hourly heating requirements of conventional *** model was designed to predict the hourly heating requirements based on the input of greenhouse indoor environmental control parameters,physical and thermal properties of crops and construction materials,and hourly weather data including temperature,relative humidity,wind speed,and cloud *** model includes all of the heat transfer parameters in greenhouses including the heat loss for plant evapotranspiration,and the heat gain from environmental control *** show that the predicted solar radiation data from the solar radiation sub-model are a reasonable fit with the data from the National Solar Radiation Database(NSRDB).Thermal analysis indicates environmental control systems could reduce 13–56%of the total heating requirements over the course of a year in the study *** the winter season,the highest amount of greenhouse heat is lost due to conduction and convection,and the heat used for evapotranspiration is dominant in the ***,the model was validated with actual heating data collected from a commercial greenhouse located in Saskatoon,and the results show that the model satisfactorily predicts the greenhouse heating requirements.

关键词： Heating model Solar radiation Supplemental lighting Evapotranspiration

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

Heating demand and economic feasibility analysis for year-round vegetable production in Canadian Prairies greenhouses

引用

Information Processing in Agriculture 2019年第1期6卷 81-90页

作者： md Shamim ahamed Huiqing Guo Lisa Taylor Karen Tanino Department of Farm Power and Machinery Bangladesh Agricultural UniversityBangladesh Department of Mechanical Engineering University of SaskatchewanCanada Department of Plant Sciences University of SaskatchewanCanada

Greenhouse vegetable production in Canadian Prairies is important for creating a sustainable regional food economy,especially in northern *** study included the estimation of heating demand for year-round production and evaluation of the economic feasibility of greenhouse vegetable production(tomato,cucumber,and pepper)in a conceptually designed greenhouse(0.6 ha)located in remote northern communities in Saskatchewan,*** heating simulation was based on a greenhouse heating simulation model(GREENHEAT)developed by the authors *** simulation results showed that the annual heating requirement for the production of tomato,cucumber,and pepper are 1486 MJ m^2,1657 MJ m^2,and 1754 MJ m^2,*** economic analysis indicates the net return(NR)from the production of tomato,cucumber,and pepper,are C$69.2/m^2(in Canadian dollar,CAD),C$41.5/m^2,and C$43.8/m^2,respectively,based on the market price C$3.5/kg,C$2.7/kg,and C$8.0/kg,and yields of 55.0 kg m^-2,65.0 kg m^-2,and 23.0 kg m^-*** net present value(NPV)for the tomato,cucumber,and pepper production are C$1.9 M,C$1.2 M,and C$1.1 M,respectively,and the benefit-cost ratio(BCR)are 1.38,1.21,and *** economic feasibility analysis indicates the year-round production of vegetables in a greenhouse at remote northern Saskatchewan would be economically profitable.

关键词： Northern latitudes Heating requirement Economic analysis Sensitivity analysis Year-round production

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

磁流变阻尼器最新进展综述:优化设计和应用（英文）

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2017年第12期18卷 991-1010页

作者： Mahmudur RAHMAN Zhi Chao ONG Sabariah JULAI md Meftahul FERDAUS Raju ahamed Department of Mechanical Engineering Faculty of Engineering University of Malaya Department of Mechatronics Engineering Faculty of Engineering International Islamic University Malaysia

本文对各种磁流变阻尼器的优化设计、制造和智能应用以及自供电和自感应技术的最新进展进行了综述。本文讨论了磁流变阻尼器的基本设计和结构以及各种类型的配置,以了解它们在各种环境和目的下的多功能性。为了应对不同的应用,本文介绍... 详细信息

本文对各种磁流变阻尼器的优化设计、制造和智能应用以及自供电和自感应技术的最新进展进行了综述。本文讨论了磁流变阻尼器的基本设计和结构以及各种类型的配置,以了解它们在各种环境和目的下的多功能性。为了应对不同的应用,本文介绍了设计的修改、优化和改进。节能是当前的终极需求,是对现代技术的挑战。磁流变阻尼器需要改进,以确保较低的电流供应得到较高的效力。这项工作将有助于在各种结构中使用磁流变阻尼器,使其以最小的电流供应进行振动控制,并在优化中获得最佳结果。

关键词：磁流变阻尼器自供电振动控制节能优化和提升

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 Survey on Fault Diagnosis and Fault Tolerant Methodologies for Permanent Magnet Synchronous Machines

引用

International Journal of Automation and computing 2020年第6期17卷 763-787页

作者： Erphan A.Bhuiyan md.Maeenul Azad Akhand Sajal K.Das md.F.Ali Z.Tasneem md.R.Islam D.K.Saha Faisal R.Badal md.H.ahamed S.I.Moyeen Department of Mechatronics Engineering Rajshahi University of Engineering and TechnologyRajshahi 6204Bangladesh

This paper presents a comprehensive survey of fault diagnosis and fault tolerant approaches for permanent magnet synchronous machines(PMSM).PMSMs are prominent in the pervading usage of electric motors,for their high efficiency,great robustness,reliability and low torque *** spite of their extensive appliance,they can be quite non-resilient and inadequate in operation when faults appear in motor drive apparatus such as inverters,stator windings,sensors,*** may lead to insulation failure,torque fluctuations,overcurrent or even system *** that account,fault diagnosis and fault tolerant methods are equipped to enhance the stability and robustness in *** methodologies of PMSM fault diagnosis and tolerance are classified,discussed,reviewed and compared in this paper,beginning with mat hematical modeling of PMSM and then scrutinizing various fault conditions in ***,the scope of research on the topic is *** contribution of this review is to emphasize optimistic schemes and to assist researchers with the latest trends in this field for future directions.

关键词： Permanent magnet synchronous machine(PMSM) fault diagnosis fault tolerant control system(FTCS) fault detection stability.

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：