检索结果-南通市图书馆

HOTSPOTS OF NUTRIENT LOSSES TO AIR AND WATER:AN INTEGRATED MODELING APPROACH FOR EUROPEAN RIVER BASINS

Frontiers of Agricultural Science and Engineering 2023年第4期10卷 579-592页

作者： Aslihan URAL-janssen Carolien KROEZE jan Peter LESSCHEN Erik MEERS Peter j.T.M.VANPUIjENBROEK Maryna STROKAL Water Systems and Global Change Group Wageningen University&ResearchPO Box 476700AA Wageningenthe Netherlands Environmental Systems Analysis Group Wageningen University&ResearchPO Box 476700AA Wageningenthe Netherlands Wageningen Environmental Research PO Box 476700AA Wageningenthe Netherlands. Laboratory of Bioresource Recovery(RE-soURCE LAB) Ghent UniversityCoupure Links 6539000 GhentBelgium. PBL The Netherlands Environmental Assessment AgencyPO Box 303142500GH The Haguethe Netherlands.

Nutrient pollution of air and water is a persistent problem in ***,the pollution sources are often analyzed separately,preventingthe formulation of integrative *** study aimed to quantify the contribution of agriculture to air,river and coastal water pollution by nutrients.A new MARINA-Nutrients model was developed for Europe to calculate inputs of nitrogen(N)and phosphorus(P)to land and rivers,N emissions to air,and nutrient export to seas by river *** current practice,inputs of N and P to land were 34.4 and 1.8 ***^(-1),***,only 12%of N and 3%of P reached the *** was responsible for 55%of N and sewage for 67%of P in *** N emissions to air from agriculture were calculated at 4.0 ***^(-1).Almost twofifths of N emissions to air were from animal housing and *** a third of the basin area was considered as pollution hotspots and generated over half of N emissions to air and nutrient pollution in *** 25%of river export of N ended up in the Atlantic Ocean and of P in the Mediterranean *** results could support environmental policies to reduce both air and water pollution simultaneously,and avoid pollution swapping.

关键词： agriculture air-water modeling European rivers nutrient pollution sewage systems source attribution

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

Optimization of Metal Coverage on the Emitter in n-Type Interdigitated Back Contact Solar Cells Using a PC2D Simulation

引用

Chinese Physics Letters 2013年第7期30卷 254-257页

作者： ZHANG Wei CHEN Chen jIA Rui janssen G.j.M. ZHANG Dai-Sheng XING Zhao Bronsveld P.C.P. Weeber A.W. jIN Zhi LIU Xin-Yu Institute of Microelectronics Chinese Academy of SciencesBeijing 100029 ECN Solar Energy P.O.X1NL-1755 ZGPettenThe Netherlands

In interdigitated back contact(IBC)solar cells,the metal-electrode coverage on a p-type emitter is optimized by a PC2D *** result shows that the variation of the metal coverage ratio(MCR)will affect both the surface passivation and the electrode-contact properties for the p-type emitter in IBC solar *** find that when R_(c) ranges from 0.08 to 0.16Ω·cm^(2),the MCR is optimized with a value of 25%and 33%,resulting in a highest energy-conversion *** dependences of both Voc and fill factor on MCR are simulated in order to explore the mechanism of the IBC solar cells.

关键词： emitter digit electrode

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

Computational analysis of deleterious missense mutations in aspartoacylase that cause Canavan's disease

引用

Science China(Life Sciences) 2012年第12期55卷 1109-1119页

作者： SREEVISHNUPRIYA K. CHANDRASEKARAN P. SENTHILKUMAR A. SETHUMADHAVAN R. SHANTHI V. daisy P. NISHA j. RAMANATHAN K. RAjASEKARAN R. Bioinformatics Division School of Biosciences and Technology Vellore Institute of TechnologyVellore 632014 Tamil Nadu India Department of Biotechnology Holy Cross CollegeTrichy 620002 Tamil Nadu India

In this work, the most detrimental missense mutations of aspartoacylase that cause Canavan's disease were identified computationally and the substrate binding efficiencies of those missense mutations were analyzed. Out of 30 missense mutations, I-Mutant 2.0, SIFT and PolyPhen programs identified 22 variants that were less stable, deleterious and damaging respectively. Subsequently, modeling of these 22 variants was performed to understand the change in their conformations with respect to the native aspartoacylase by computing their root mean squared deviation (RMSD). Furthermore, the native protein and the 22 mutants were docked with the substrate NAA (N-Acetyl-Aspartic acid) to explain the substrate binding efficiencies of those detrimental missense mutations. Among the 22 mutants, the docking studies identified that 15 mutants caused lower binding affinity for NAA than the native protein. Finally, normal mode analysis determined that the loss of binding affinity of these 15 mutants was caused by altered flexibility in the amino acids that bind to NAA compared with the native protein. Thus, the pre- sent study showed that the majority of the substrate-binding amino acids in those 15 mutants displayed loss of flexibility, which could be the theoretical explanation of decreased binding affinity between the mutant aspartoacylases and NAA.

关键词： missense mutation Canavan's disease aspartoacylase NAA flexibility

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

Optimization of the Photovoltaic Performance of Diketopyrrolopyrrole Polymer Solar Cells with Efficiency Approaching 10%

Optimization of the Photovoltaic Performance of Diketopyrrol...

引用

中国化学会第三届中国能源材料化学研讨会

作者： Mengmeng Li René A.j.janssen Molecular Materials and Nanosystems Eindhoven University of Technology

＜正＞The influence of device polarity on the photovoltaic performance is still under debate,although the inverted（n-i-p） device structure is becoming more popular than the conventional（p-i-n） *** has been reported that in the conventional device configuration,the acidic poly（ethylenedioxythiophene）:poly（styrene sulfonate）

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Dual-functional porous and cisplatin-loaded polymethylmethacrylate cement for reconstruction of load-bearing bone defect kills bone tumor cells

引用

Bioactive Materials 2022年第9期7卷 120-130页

作者： Zhule Wang Liebert Parreiras Nogueira Håvard jostein Haugen Ingrid CM.Van Der Geest Patricia Caetano de Almeida Rodrigues Dennis janssen Thom Bitter jeroen j.j.P.van den Beucken Sander CG.Leeuwenburgh Radboud University Medical Center Department of Dentistry-Regenerative BiomaterialsRadboud Institute for Molecular Life SciencesNijmegenthe Netherlands University of Oslo Department of BiomaterialsInstitute of Clinical DentistryFaculty of DentistryOsloNorway Radboud University Medical Center Department of OrthopedicsRadboud Institute for Health SciencesNijmegenthe Netherlands

Malignant bone tumors are usually treated by resection of tumor tissue followed by filling of the bone defect with bone graft ***(PMMA)cement is the most commonly used bone substitute in clinical orthopedics in view of its ***,the dense nature of PMMA renders this biomaterial unsuitable for local delivery of chemotherapeutic drugs to limit the recurrence of bone ***,we introduce porosity into PMMA cement by adding carboxymethylcellulose(CMC)to facilitate such local delivery of chemotherapeutic drugs,while retaining sufficient mechanical properties for bone reconstruction in load-bearing *** results show that the mechanical strength of PMMA-based cements gradually decreases with increasing CMC *** incorporation of≥3%CMC,the PMMA-based cements released up to 18%of the loaded cisplatin,in contrast to cements containing lower amounts of CMC which only released less than 2%of the cisplatin over 28 *** release of cisplatin efficiently killed osteosarcoma cells in vitro and the fraction of dead cells increased to 91.3%at day 7,which confirms the retained chemotherapeutic activity of released cisplatin from these PMMA-based ***,tibias filled with PMMA-based cements containing up to 3%of CMC exhibit comparable compressive strengths as compared to intact *** conclusion,we demonstrate that PMMA cements can be rendered therapeutically active by introducing porosity using CMC to allow for release of cisplatin without compromising mechanical properties beyond critical *** such,these data suggest that our dual-functional PMMA-based cements represent a viable treatment option for filling bone defects after bone tumor resection in load-bearing sites.

关键词： Porous polymethylmethacrylate cement Bone tumor treatment Local drug delivery Chemotherapeutic drug Ex vivo biomechanical assessment

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

一种新型的高频半导体量子点单电子泵

引用

物理学报 2008年第3期57卷 1878-1885页

作者：李玲 Kaestner B Blumenthal M D Giblin S janssen T j B M Pepper M Anderson D jones G Ritchie D A 高洁四川大学物理科学与技术学院成都610064 四川师范大学物理学院与固体物理研究所成都610066 Physikalisch-Technische Bundesanstalt 38100 BraunschweigGermany National Physical Laboratory Hampton RoadTeddington TWI 1 0LWUK Cavendish Laboratory University of CambridgeCambridge CB30HEUK

除了直流负电压外,还在浅法刻蚀出的GaAs/AlGaAs量子线上的两个金属指形门上分别叠加两个相位相差π的正弦信号,从而对形成量子点的两个势垒作不等幅调制.在无源漏偏压的情况下,通过周期形成的量子点实现了单电子的搬运.由于新的半导体... 详细信息

除了直流负电压外,还在浅法刻蚀出的GaAs/AlGaAs量子线上的两个金属指形门上分别叠加两个相位相差π的正弦信号,从而对形成量子点的两个势垒作不等幅调制.在无源漏偏压的情况下,通过周期形成的量子点实现了单电子的搬运.由于新的半导体量子点单电子泵不是依赖库仑阻塞效应通过隧穿进行单电子输运,因此,该器件就不会受到固定隧穿时间引起的低工作频率限制.在1.7K温度下,频率达到3GHz仍然可以观测到量子化电流平台,对应的电流值达到0.5nA量级.这种新器件提供了实现高速度、高精度搬运单电子的另一种可能途径.

关键词：单电子输运单电子旋转门单电子泵量子化电流平台

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

Carbon nanotube micropillars trigger guided growth of complex human neural stem cells networks

引用

Nano Research 2019年第11期12卷 2894-2899页

作者： Gabriela S.Lorite Laura Yla-Outinen Lauriane janssen Olli Pitkanen Tiina joki janne T.Koivisto Minna Kellomaki Robert Vajtai Susanna Narkilahti Krisztian Kordas Microelectronics Research Unit University of OuluOuluPO BOX 4500FI 90014Finland NeuroGroup BioMediTech and Faculty of Medicine and Health technologyTampere UniversityArvo Ylpön katu 34TampereFI 33520Finland Biomaterials&Tissue Engineering Group BioMediTechFaculty of Medicine and Health TechnologyTampere UniversityPO Box 527TampereFI 33101Finland Department of Materials Science and Nanoengineering Rice UniversityP.O.Box 1892HoustonTX77251-1892USA

New strategies for spatially controlled growth of human neurons may provide viable solutions to treat and recover peripheral or spinal cord *** topography cues are known to promote attachment and direct proliferation of many cell types,guided outgrowth of human neurites has been found difficult to achieve so ***,three-dimensional(3D)micropatterned carbon nanotube(CNT)templates are used to effectively direct human neurite stem cell *** exploiting the mechanical flexibility,electrically conductivity and texture of the 3D CNT micropillars,a perfect environment is created to achieve specific guidance of human neurites,which may lead to enhanced therapeutic effects within the injured spinal cord or peripheral *** is found that the 3D CNT micropillars grant excellent anchoring for adjacent neurites to form seamless neuronal networks that can be grown to any arbitrary shape and *** from clear practical relevance in regenerative medicine,these results using the CNT based templates on Si chips also can pave the road for new types of microelectrode arrays to study cell network electrophysiology.

关键词： carbon nanotubes multiple cues guided neurite outgrowth human neural stem cells neuronal networks

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

生物除磷设计与运行手册 1

引用

丛书名： = Biological phosphorus removal manual for design and operation eng

2005年

作者： P.M.j.janssen等祝贵兵彭永臻译

本书共七章，主要内容包括：概述、生物除磷基础、生物除磷系统模型的设计、生物除磷处理构筑物、生物除磷处理体系、生物除磷污水处理厂的设计与优化运行等。

ISBN: (数字)7112073235

ISBN: (纸本)7112073235

关键词：生物处理脱磷技术手册

来源：汇雅图书（南通市图书馆... 评论

在线全文

汇雅图书（南通市图书馆）

学校读者我要写书评

暂无评论

Antiferromagnetism and p-type conductivity of nonstoichiometric nickel oxide thin films

引用

InfoMat 2020年第4期2卷 769-774页

作者： Mari Napari Tahmida N.Huq Tuhin Maity daisy Gomersall Kham M.Niang Armin Barthel juliet E.Thompson Sami Kinnunen Kai Arstila Timo Sajavaara Robert L.ZHoye Andrew j.Flewitt judith L.MacManus-Driscoll Department of Materials Science and Metallurgy University of CambridgeCambridgeUK Electrical Engineering Division Department of EngineeringUniversity of CambridgeCambridgeUK Department of Physics University of JyvaskylaJyvaskylaFinland Zepler Institute for Photonics and Nanoelectronics University of SouthamptonSouthamptonUK

Nickel oxide(NiO)is one of the most studied transition metal oxides due to its versatile chemical and electronic properties,enabling it to be used in a wide variety of *** its stoichiometric form,NiO is an antiferromagnetic insulator,with resistivity up to 10^13Ωcm.1 When Ni vacancies are introduced,the nonstoichiometric nickel oxide becomes a semiconductor.

关键词： atomic layer deposition chemical vapor deposition nickel oxide solution deposition thin films

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

断路器的寿命管理

引用

江苏电力译文 2001年第4期 18-25页

作者： A.L.j.janssen 龙禹

1996年CIGRE第13SC（开关设备）组成立了一个新的工作小组即13．08小组（断路器的寿命管理），来研究断路器寿命管理的情况并就如何延长运行中和改进中的开关设备的剩余预期寿命提出详细的建议。要研究的问题如下：过去和现在设计的高... 详细信息

1996年CIGRE第13SC（开关设备）组成立了一个新的工作小组即13．08小组（断路器的寿命管理），来研究断路器寿命管理的情况并就如何延长运行中和改进中的开关设备的剩余预期寿命提出详细的建议。要研究的问题如下：过去和现在设计的高、中压断路器的现有寿命经验；剩余预期寿命、可能性和步骤的确定和评估；风险评估；寿命延长的可能性，例如监控、维护方法、安全性、可维护性；试验；经济的影响，采取预防措施所带来的额外支出，可靠性降低等等；法律、环境和政策方面；电网状况的变化；本文介绍了CIGRE第13．08小组的研究摘要。

关键词：断路器寿命管理诊断监测

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：