检索结果-南通市图书馆

reduced tillage with residue retention improves soil labile carbon pools and carbon lability and management indices in a seven-year trial with wheat-mung bean-rice rotation

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2022年第6期32卷 916-927页

作者： rafeza BEGUM Mohammad M.r.JAHANGIr Mohammad JAHIrUDDIN Mohammad rafiqul islam Shaikh M.BOKHTIAr Khandakar r.islam Department of Soil Science Bangladesh Agricultural UniversityMymensingh 2202(Bangladesh) Soil resource Development Institute Dhaka 1215(Bangladesh) South Asian Association for regional Cooperation(SAArC)Agriculture Center Dhaka 1215(Bangladesh) The Ohio State University Columbus OH 43235(USA)

Soil total organic carbon(TOC)is a composite indicator of soil quality with implications for crop production and the regulation of soil ecosystem *** reports on the dynamics of TOC as a consequence of soil management practices in subtropical climatic conditions,where microbial carbon(C)loss is high,are very *** objective of our study was to evaluate the impact of seven years of continuous tillage and residue management on soil TOC dynamics(quantitative and qualitative)with respect to lability and stratification under an annual wheat-mung bean-rice cropping *** soil samples were collected at 0-15 and 15-30 cm depths from a three-replicate split-plot experiment with tillage treatment as the main plots and crop residue levels as the *** tillage treatments included conventional tillage(CT)and strip tillage(ST).residue levels were high residue level(Hr),30%of the plant height,and low residue level(Lr),15%.In addition to TOC,soil samples were analyzed for particulate organic C(POC),permanganate oxidizable C(POXC),basal respiration(Br),specific maintenance respiration rate(qCO_(2)),microbial biomass C(MBC),potentially mineralizable C(PMC),and TOC lability and management *** ST treatment significantly increased the TOC and labile C pools at both depths compared with the CT treatment,with the effect being more pronounced in the surface *** Hr treatment increased TOC and labile C pools compared with the Lr *** ST+Hr treatment showed significant increases in MBC,metabolic quotient(qr),C pool index(CPI),C lability index(CL_(I)),and C management index(CMI),indicating improved and efficient soil biological activities in such systems compared with the CT ***,the stratification values,a measure of soil quality improvement,for POC and MBC were>2,indicating improved soil quality in the ST+Hr treatment compared with the CT *** ST+Hr treatment not only significantly increased the contents o

关键词： basal respiration carbon management index carbon stratification particulate organic carbon permanganate oxidizable carbon total organic carbon

Identification of Wheat-Barley 2H Alien Substitution Lines

在线全文

学校读者我要写书评

暂无评论

Acta Botanica Sinica 2003年第9期45卷 1096-1102页

作者：原亚萍陈孝肖世和 A.K.M.r.islam 辛志勇中国农业科学院作物育种栽培研究所农业部作物遗传育种重点开放实验室北京100081 长春农牧大学长春130062 澳大利亚阿德莱德大学植物科学系澳大利亚

The genetic constitution of fifteen materials derived from the cross wheat (Triticum aestivum L. cv. 'Chinese Spring') X barley (Hordeum vulgare L. cv. 'Betzes') was analyzed, and six disomic alien substitution lines were screened by GISH. The chromosome configurations in pollen mother cells at meiotic metaphase I (PMCs M I) of F, from each disomic substitution line respectively crossed with double ditelocentric lines 2A, 2B and 2D of 'Chinese Spring' were observed, and a set of wheat-barley disomic alien substitution lines 2H(A), 2H(B) and 2H(D) were obtained. The rFLP analysis with the probe psr131 on the short arm of wheat homeologous group 2 combining with four restriction enzymes were carried out. The results indicated that the probe psr131 could be used as molecular marker to tag the barley chromosome 2H. The barley chromosome 2H had good genetic compensation ability for wheat chromosomes 2B and 2D in vitality and other agronomic characters. The result of testing seed was that the wheat appearance starch quality had been changed from the half-farinaceous of 'Chinese Spring' to the half-cutin of substitution lines by transferring the barley chromosome 2H to wheat.

关键词： wheat barley substitution line genomic in situ hybridization (GISH) rFLP

No-till and conservation agriculture in the United States:An example from the David Brandt farm,Carroll,Ohio

在线全文

学校读者我要写书评

暂无评论

International Soil and Water Conservation research 2014年第1期2卷 97-107页

作者： r.islam r.reeder Soil Water and Bioenergy ResourcesOhio State University South CentersOH Agricultural and Biological Engineering Dept. Ohio State University

No-till(NT)farming(conservation agriculture)began in the US in the *** state of Ohio has a university research location that began no-till research in 1962.A few innovative Ohio farmers,including NT pioneers David Brandt and Bill richards,were early adopters of the new conservation ***,no-till was most successful on sloping,well drained soils,then with improvements to the system,including cover crops,it became more widely adopted on all soil *** Brandt was an enthusiastic learner and teacher of no-till practices,working with chemical company representatives and Cooperative Extension Specialists to demonstrate the *** Brandt’s cooperation with Ohio State University researchers continues to provide a valuable site for studying the long term changes in soil health and ecosystem *** showed that total microbial biomass as one of the soil biological health indicators significantly increased with an associated decrease in carbon(C)loss under NT compared with conventional tilled soil(CT).Under NT,there was significantly higher total C and total N compared to *** C,as a composite measure of soil health,significantly increased with *** cover crops,especially cover crop cocktail mixes,were used,NT substantially improved soil ***-term NT with cover crop cocktail mixes significantly increased the soil aggregate stability,compared with *** overall rate of C sequestration by NT suggested that the soils on the Brandt farm act as a consistent sink of atmospheric CO2 although this tends to level off after about 20 *** Brandt farm showed that crop yields are increased under long-term NT with cover crops *** suggested that starting with a cover crop when switching from CT to NT,is more likely to ensure success and to maintain economic crop *** early adopter,Bill richards,from Circleville,Ohio,also became a national leader and promoter of no-till *** served as head of the United Sta

关键词： Innovation Eco-farming Corn Soybeans Wheat Cover crops Carbon sequestration Soil organic matter Agroecosystems Carbon management index Farm bill Government policy

User-centered development and performance assessment of a modular full-body exoskeleton (AXO-SUIT)

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

Biomimetic Intelligence & robotics 2022年第2期2卷 9-16页

作者： Shaoping Bai M.r.islam Valerie Power Leonard OŚullivan Department of Materials and Production Aalborg UniversityAalborg 9220Denmark School of Design Health Research Institute and CONFIRM Smart Manufacturing CentreUniversity of LimerickIreland

This paper presents the design and preliminary performance assessment of a full-body assistive exoskeleton(AXO-SUIT)for older ***-SUIT is a system that consists of separate lower-body and upper-body modular exoskeletons,which can be combined to form a full-body system to provide flexible physical assistance as *** full-body exoskeleton comprises 27 degrees of freedom(dof),of which 17 are passive and 10 *** can assist people in walking,standing,carrying and handling tasks.A user-centered design approach was adopted throughout the development of the *** paper describes the design process of AXOSUIT,involving a review of user needs,a kinematic and kinetic motion study,and innovative system *** with the developed systems were conducted on selected end-user subjects,covering both performance evaluations at different levels and useability ***-user testing results show the effectiveness of the exoskeleton in providing flexible physical assistance.

关键词： Exoskeletons Physical assistance for the elderly User-centered design Performance assessment

Power Quality Improvement of Distribution Network Using BESS and Capacitor Bank

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

Journal of Modern Power Systems and Clean Energy 2021年第3期9卷 625-632页

作者： F.r.islam A.Lallu K.A.Mamun K.Prakash N.K.roy University of Sunshine Coast Sip-py DownsAustralia University of South Pacific SuvaFiji KJiulna University of Engineering and Technology KhulnaBangladesh

The power demand around the world is increasing *** aging distribution network architectures are used by the existing utility companies to deliver power to the consumers,which significantly affects the reliability,stability and quality of the delivered *** techniques such as compensation devices have been used by power system engineers and researchers to maintain the quality of power transmitted to end *** this paper,wattage and volt-amp reactive(VAr)planning scheme has been proposed by using the combination of battery energy storage systems(BESS)and compensators to deal with the vulnerability of networks to voltage drop and system *** cost-effective combination of BESS and shunt capacitor bank will then be analyzed to indicate the benefit of the proposed scheme.

关键词： Battery energy storage system(BESS) shunt capacitor bank reliability stability quality volt-amp reactive(VAr)planning distribution network

Stimuli-responsive polymeric materials for human health applications

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2014年第32期59卷 4237-4255页

作者： Molla r.islam Yongfeng Gao Xue Li Qiang Matthew Zhang Menglian Wei Michael J.Serpe Department of Chemistry University of Alberta Edmonton AB T6G 2G2 Canada

Stimuli-responsive polymers have the extraordinary ability to change their physical and/or chemical state after they‘‘detect’’a change in their environment;their response depends dramatically on their chemical *** property has been used for a plethora of applications;this review highlights their utility for human ***,this review will highlight efforts in the areas of sensing and biosensing,antimicrobial/antifouling coatings,tissue engineering and regenerative medicine,and drug *** examples are given in each of these areas,with some focus on our work engineering poly(Nisopropylacrylamide)-based microgels and other responsive systems.

关键词：聚合物材料刺激响应性人体健康应用 N-异丙基丙烯酰胺化学状态生物传感组织工程

The removal of arsenic from (ground)-water by adsorbent loaded in polymeric microspheres

在线全文

学校读者我要写书评

暂无评论

Journal of Harbin Institute of Technology(New Series) 2012年第1期19卷 63-66页

作者： FIGOLI A HOINKIS J CrISCUOLI A FrANZ C DE rYCKE M BLOCK C DEOWAN S A islam r DrIOLI E Institute on Membrane Technology (ITM-CNr) Via Pietro BucciCubo 17C87030 Rende ( CS) Italya Karlshrue University of Applied Sciences Moltkestr. 30 76133KarlshrueGermany Sustainable Process Materials Engineering GROUP T-Leuven Engineering CollegeVesaliusstraat 133000 LeuvenBelgium

Arsenic is a natural tasteless and odourless element,existing in the earth's crust at average levels of between two and five thousands micrograms per liter (parts per million) . Arsenic is highly toxic to humans, who are exposed to it primarily from air,food and water. The occurrence of arsenic in groundwater is due to geological composition of soil. High concentrations of arsenic in water are the result of dissolution or desorption of ferric oxides and the oxidation of mineral arsenopyrites. Arsenic in drinking water has an important impact on the human health,especially in the less developed countries. Different methods exist to remove arsenic from aquatic media,and one of them is by adsorption. In this work,the adsorption of both As(III) and As(V) by means of novel microspheres has been investigated. In particular,TiO2 has been embedded into polymeric microspheres PES (PolyEtherSulphone) and PEEK-WC (PolyEtherEther-Ketone) . The main advantages of this encapsulation adsorption material are: no loss of adsorbents into the water stream,easy to be used and scaled-up.

关键词： arsenic removal adsorption TiO2 polymeric microspheres

Genetic Diversity and Yield Stability of Potato(Solanum tuberosum L.)

在线全文

学校读者我要写书评

暂无评论

中国马铃薯 2008年第1期22卷 1-8页

作者： Biswas M K Hossain M islam r National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhanHubei 430070China Department of Botany University of RajshahiBangladesh

The present study was under taken to investigate the genetic distance and the performance of thirty one potato genotypes in diverse *** and canonical analysis were used to study genetic diversity among the genotypes and stability parameters were estimated according to Eberhart and russell,Parkinge and Jinks and Freeman and Perkins models for plant height,branch number per plant,tuber number and tuber *** one genotypes were grouped in to six clusters with the help of Mahalonobis distance and canonical *** stability analysis revealed that yield was greatly influenced by the *** of the studied genotypes were sensitive for yield with the *** over-all performance 'Hera','Chamak','Patnai','Lala pakri','TPS-7','TPS-364','Somerset' and 'Superior' were the best genotypes for tuber yield and breeding material for potato breeding.

关键词：遗传多样性产量稳定性马铃薯基因型-环境互作决定系数

Towards next generation Internet of Energy system: Framework and trends

在线全文

学校读者我要写书评

暂无评论

Energy and AI

Energy and AI 2023年第4期14卷 660-681页

作者： Muqit Farhan Tanzim N.reza Faisal r.Badal Md.r.islam S M Muyeen Z.Tasneem Md.Mehedi Hasan Md.F.Ali Md.H.Ahamed S.H.Abhi Md.Manirul islam Subrata K.Sarker Sajal K.Das Prangon Das Department of Mechatronics Engineering Rajshahi University of Engineering TechnologyRajshahi 6204Bangladesh Department of Electrical Engineering Qatar UniversityDohaQatar

The quickening propensity of growth within the areas of information and communications technology and en-ergy networks has triggered the emergence of a central idea termed as Internet of Energy(IoE).Such a concept relates the internet of things,which is the term used in describing the usage of sophisticated digital control devices with the capability of transmitting data via IT *** concept of an interconnected energy network is being formed in the upcoming days through upgrades in the field of intelligent energy systems to control real-time energy optimization and *** energy industry has had a sustained expansion,reaching the IoE milestone and continuing to this cutting-edge power system,which is the next generation of IoE.A directional pathway from the traditional power system to the IoE has been conducted in this research work by addressing the importance of integrating the smart transmission and communication infrastructure,smart metering,pricing and energy management scheme.A detailed investigation of the IoE with respect to technical angles,such as communication architecture,IoE on the supply&demand side,and IoE protocol based on fundamental elements and essential technologies has been carried out to indicate the blueprint and jurisdiction *** inte-gration,security and energy management challenges may deviate the performance of the IoE technology that has been focused with proper control issues and ***,a directional framework to establish the next-generation IoE system has been constructed with future scopes to insure higher resiliency,cyber-security and stability.

关键词： Internet of Energy IoT Microgrid Smart grid Virtual power plant Next generation power system