检索结果-南通市图书馆

Construction of a broad-host-range Anderson promoter series and particulate methane monooxygenase promoter variants expand the methanotroph genetic toolbox

引用

Synthetic and Systems Biotechnology 2024年第2期9卷 250-258页

作者： Etash H.Bhat Jessica M.Henard Spencer A.Lee dustin McHalffey Mahith S.Ravulapati Elle v.rogers Logan Yu david Skiles Calvin A.Henard department of Biological Sciences and Biodiscovery Institute University of North TexasDentonTXUSA

Methanotrophic bacteria are currently used industrially for the bioconversion of methane-rich natural gas and anaerobic digestion-derived biogas to valuable *** bacteria may also serve to mitigate the negative effects of climate change by capturing atmospheric greenhouse *** genetic tools have previously been developed for genetic and metabolic engineering of ***,the available tools for use in methanotrophs are significantly underdeveloped compared to many other industrially relevant bacteria,which hinders genetic and metabolic engineering of these *** such,expansion of the methanotroph genetic toolbox is needed to further our understanding of methanotrophy and develop biotechnologies that leverage these unique microbes for mitigation and conversion of methane to valuable ***,we determined the copy number of three broad-host-range plasmids in Methylococcus capsulatus Bath and Methylosinus trichosporium OB3b,representing phylogenetically diverse Gammaproteobacterial and Alphaproteobacterial methanotrophs,***,we show that the commonly used synthetic Anderson series promoters are functional and exhibit similar relative activity in *** and *** OB3b,but the synthetic series had limited ***,we mutagenized the native *** particulate methane monooxygenase promoter and identified variants with activity that expand the activity range of synthetic,constitutive promoters functional not only in ***,but also in Escherichia ***,the tools developed here advance the methanotroph genetic engineering toolbox and represent additional synthetic genetic parts that may have broad applicability in Pseudomonadota bacteria.

关键词： Methanotroph Methane monooxygenase Promoter Metabolic engineering Synthetic biology

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

Assessing the Sustainability of Underground Space Usage——A Toolkit for Testing Possible Urban Futures

引用

Journal of Mountain Science 2011年第2期8卷 211-222页

作者： d.v.L.HUNT I.JEFFERSON C.d.F.rogers The University of Birmingham

A description of the future as it might be without forecasts, predictions and trend analysis can be referred to as a 'future scenario'. An abundance of scenarios literature exists in which numerous pictures have been painted of changed future worlds. However, upon closer inspection it becomes apparent that virtually all of this literature refers to changes occurring above ground, ignoring the inevitable consequences (or opportunities) for sustainable use of underground space, not least in densely populated urban areas, some of which may be underlain by complex geological conditions. This paper reports on the development (to date) of an 'Urban Futures' (UF) toolkit for sub-surface environments (including infrastructure and utilities) which, through use of 'key' questions 'sustainable' indicators and a 'contextual' narrative, allows for better definition and measured performance of underground space in the UK, both today and in the future. The toolkit explores possible uses for underground space within 4 plausible and well-cited future scenarios (i.e. New Sustainability Paradigm, Fortress World, Market Forces and Policy Reform). This forms part of a much larger generic toolkit which the UF research team are developing for exploring possible future scenarios over a range of UK urban regeneration case study areas.

关键词： urban futures toolkit underground space sustainability

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

Challenges and opportunities in flexible,stretchable and morphable bio-interfaced technologies

引用

National Science Review 2022年第10期9卷 10-13页

作者： Abraham vázquez-Guardado Yiyuan Yang John A.rogers Center for Bio-Integrated Electronics Northwestern University Querrey Simpson Institute for Bioelectronics Northwestern University department of Mechanical Engineering Northwestern University department of Materials Science and Engineering Northwestern University department of Biomedical Engineering Northwestern University department of Neurological Surgery Feinberg School of Medicine Northwestern University

Living organisms operate on the basis of dynamic biochemical processes elicited by a rich diversity of endogenous and exogenous *** higher-level forms of life,the result manifests as complex patterns of behavior and ultimately in the form of intelligence and *** classes of biocompatible electronic interfaces support expanding possibilities in bidirectional communication.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Urban heat mitigation by green and blue infrastructure:drivers,effectiveness,and future needs

引用

The Innovation 2024年第2期5卷 145-166页

作者： Prashant Kumar Sisay E.debele Soheila Khalili Christos H.Halios Jeetendra Sahani Nasrin Aghamohammadi Maria de Fatima Andrade Maria Athanassiadou Kamaldeep Bhui Nerea Calvillo Shi-Jie Cao Frederic Coulon Jill L.Edmondson david Fletcher Edmilson dias de Freitas Hai Guo Matthew C.Hort Madhusudan Katti Thomas Rodding Kjeldsen Steffen Lehmann Giuliano Maselli Locosselli Shelagh K.Malham Lidia Morawska Rajan Parajuli Christopher d.F.rogers Runming Yao Fang Wang Jannis Wenk Laurence Jones Global Centre for Clean Air Research(GCARE) School of SustainabilityCivil and Environmental EngineeringFaculty of Engineering and Physical SciencesUniversity of SurreyGuildford GU27XHUK Institute for Sustainability University of SurreyGuildford GU27XHSurreyUK School of Built Environment University of ReadingWhiteknightsReading RG66BUUK School design and the Built Environment Curtin University Sustainability Policy InstituteKent StBentley 6102Western Australia Harry Butler Institute Murdoch UniversityMurdoch 6150Western Australia Atmospheric Sciences department Institute of AstronomyGeophysics and Atmospheric SciencesUniversity of Sao PauloSao Paulo 05508-090Brazil Met Office FitzRoy RoadExeter EX13PBUK department of Psychiatry and Nuffield department of Primary Care Health Sciences Wadham CollegeUniversity of OxfordOxfordUK Centre for Interdisciplinary Methodologies University of WarwickWarwickUK School of Architecture Southeast University2 SipailouNanjing 210096China Cranfield University School of WaterEnvironment and EnergyCranfield MK430ALUK Plants PhotosynthesisSoil ClusterSchool of BiosciencesUniversity of SheffieldSheffield S102TNUK UK Centre for Ecology&Hydrology Environment Centre WalesDeiniol RoadBangor LL572UWUK Air Quality Studies Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic UniversityHong KongChina department of Forestry and Environmental Resources Faculty Excellence Program for Leadership in Public ScienceNorth Carolina State UniversityChancellorRaleighNC 27695USA departments of Architecture&Civil Engineering and Chemical EngineeringUniversity of BathBath BA27AYUK School of Architecture University of NevadaLas VegasNV 89154USA department of Tropical Ecosystems Functioning Center of Nuclear Energy in AgricultureUniversity of São PauloPiracicaba 13416-000Sao PauloBrazil School of Ocean Sciences Bangor UniversityMenai BridgeAnglesey LL595 ABUK International Laboratory for Air Quality and Health Science and Engine

The combination of urbanization and global warming leads to urban overheating and compounds the frequency and intensity of extreme heat events due to climate ***,the risk of urban overheating can be mitigated by urban green-blue-grey infrastructure(GBGI),such as parks,wetlands,and engineered greening,which have the potential to effectively reduce summer air *** many reviews,the evidence bases on quantified GBGI cooling benefits remains partial and the practical recommendations for implementation are *** systematic literature review synthesizes the evidence base for heat mitigation and related co-benefits,identifies knowledge gaps,and proposes recommendations for their implementation to maximize their *** screening 27,486 papers,202 were reviewed,based on 51 GBGI types categorized under 10 main *** GBGI(green walls,parks,street trees)have been well researched for their urban cooling ***,several other GBGI have received negligible(zoological garden,golf course,estuary)or minimal(private garden,allotment)*** most efficient air cooling was observed in botanical gardens(5.0±3.5℃),wetlands(4.9±3.2℃),green walls(4.1±4.2℃),street trees(3.8±3.1℃),and vegetated balconies(3.8±2.7℃).Under changing climate conditions(2070–2100)with consideration of RCP8.5,there is a shift in climate subtypes,either within the same climate zone(e.g.,dfa to dfb and Cfb to Cfa)or across other climate zones(e.g.,dfb[continental warm-summer humid]to BSk[dry,cold semi-arid]and Cwa[temperate]to Am[tropical]).These shifts may result in lower efficiency for the current GBGI in the *** the importance of multiple services,it is crucial to balance their functionality,cooling performance,and other related co-benefits when planning for the future *** global GBGI heat mitigation inventory can assist policymakers and urban planners in prioritizing effective interventions to reduce the risk of urban overheating,fi

关键词： estuary walls extreme

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

Theoretical and Experimental Studies of Schottky diodes that Use Aligned Arrays of Single-Walled Carbon Nanotubes

引用

Nano Research 2010年第6期3卷 444-451页

作者： Xinning Ho Lina Ye Slava v.Rotkin Xu Xie Frank du Simon dunham Jana Zaumseil John A.rogers department of Materials Science and Engineering Beckman Instituteand Frederick Seitz Materials Research LaboratoryUniversity of Illinois at Urbana-Champaign1304 West Green StreetUrbanaIllinois 61801USA department of Chemistry University of Science and Technology of ChinaHefei 230026China department of Physics Lehigh UniversityBethlehemPennsylvania 18015 and Centre for Advanced Materials and NanotechnologyLehigh UniversityBethlehemPennsylvania 18015USA Center for Nanoscale Materials Argonne National LaboratoryArgonneIllinois 60439USA department of Chemistry University of Illinois at Urbana-ChampaignUrbanaIllinois 61801USA department of Electrical and Computer Engineering Mechanical Science and EngineeringUniversity of Illinois at Urbana-ChampaignUrbanaIllinois 61801USA

We present theoretical and experimental studies of Schottky diodes that use aligned arrays of single-walled carbon nanotubes. A simple physical model, taking into account the basic physics of current rectification, can adequately describe the single-tube and array devices. We show that for as-grown array diodes, the rectification ratio, defined by the maximum-to-minimum-current-ratio, is low due to the presence of metallic-single-walled nanotube (SWNT) shunts. These tubes can be eliminated in a single voltage sweep resulting in a high rectification array device. Further analysis also shows that the channel resistance, and not the intrinsic nanotube diode properties, limits the rectification in devices with channel length up to 10 μm.

关键词： Schottky diodes aligned arrays single-walled carbon nanotubes

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

Light concentration using hetero-junctions of anisotropic low permittivity metamaterials

引用

Light(Science & Applications) 2013年第1期2卷 18-26页

作者： Mohammad Memarian George v Eleftheriades The Edward S.rogers Sr.department of Electrical and Computer Engineering University of TorontoTorontoOnt.M5S 2E4Canada

Focusing incident power into an area of high concentration is of significant interest for various *** optics,this has been traditionally achieved with lenses where a higher curvature and lens permittivity typically result in shorter focal distances(low f/d).In this work,we present designs and techniques for collecting,refracting and guiding incident light into an area of high power concentration(a hot spot)at extremely short ***,a flat low-profile focusing mechanism is presented using a hetero-junction of anisotropic metamaterials(MTMs).The hetero-junction is formed from two cleaved finite slabs of low(near zero)permittivity anisotropic MTMs with rotated optical *** MTMs have near zero longitudinal permittivity while matched in the transverse *** MTMs are shown to provide a unique ability to bend the transverse magnetic or p-polarized light away from the normal and along the interface,contrary to conventional dielectrics,and with minimal reflections;hence allowing for a low profile *** in the optical regime are presented using periodic bilayers of metal and *** proposed hetero-junction focusing device concentrates the normally incident plane wave and/or beam into a corresponding focal region similar to a lens via multiple *** hetero-junction is capable of creating a hot spot very close to the device,much closer than dielectric lenses and it significantly outperforms the size requirements of thick high curvature lenses with low f/d *** proposed designs can find applications in various scenarios including solar and thermo photovoltaics,photodetectors,concentrated photovoltaics,non-imaging optics,micro-and nano-Fresnel lenses.

关键词： epsilon near zero focusing light concentration metamaterials non-imaging optics photovoltaics

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

The Peer Review Process

The Peer Review Process

引用

中国化学会第二十五届学术年会

作者： david G.Whitten Leonard v.Interrante Prashant v.Kamat Robin d.rogers Center for Biomedical Engineering department of Chemical and Nuclear Engineering Editor Langmuir The University of New Mexico Albuquerque New Mexico 87131-0001 USA Editor-in-Chief Chemistry of Materials Department of Chemistry and Molecular Biology Rensselaer Polytechnic Institute Troy NY 12180 USA Senior Editor J. Physical Chemistry B Dept. of Chemistry ＆ Biomolecular Engineering University of Notre Dame Notre Dame IN 46556-0579 Editor-in-Chief Crystal Growth and Design Department of Chemistry and Center for Green Manufacturing The University of Alabama Tuscaloosa AL 35487 USA

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

Getting Involved in the Scientific Publishing Process:What does it Take?

Getting Involved in the Scientific Publishing Process:What D...

引用

中国化学会第二十五届学术年会

作者： Robin d.rogers Leonard v.Interrante Prashant v.Kamat david G.Whitten Editor-in-Chief Crystal Growth and Design Department of Chemistry and Center for Green Manufacturing The University of Alabama Tuscaloosa AL 35487 USA Editor-in-Chief Chemistry of Materials Department of Chemistry and Molecular Biology Rensselaer Polytechnic Institute Troy NY 12180 USA Senior Editor J. Physical Chemistry B Dept. of Chemistry ＆ Biomolecular Engineering University of Notre Dame Notre Dame IN 46556-0579 Editor-in-Chief Langmuir Department of Chemical and Nuclear Engineering University of New Mexico MSC01 1120 209 Farris Engineering Center Albuquerque NM 87131

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

What Constitutes Publishable Science?

What Constitutes Publishable Science?

引用

中国化学会第二十五届学术年会

作者： Leonard v.Interrante Prashant v.Kamat Robin d.rogers david G.Whitten Editor Chemistry of Materials Department of Chemistry and Molecular Biology Rensselaer Polytechnic Institute Troy NY 12180 USA Editor J. Physical Chemistry B Dept. of Chemistry & Biomolecular Engineering University of Notre Dame Notre Dame IN 46556-0579 Editor Crystal Growth & Design Department of Chemistry Box 870204 The University of Alabama Tuscaloosa AL 35487 Editor Langmuir Department of Chemical and Nuclear Engineering University of New Mexico MSC01 1120 209 Farris Engineering Center Albuquerque NM 87131

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

Metasurfaces: physics and applications in wireless communications

引用

National Science Review 2023年第8期10卷 48-63页

作者： vasileios G. Ataloglou Sajjad Taravati George v. Eleftheriades The Edward S.rogers Sr.department of Electrical and Computer Engineering University of Toronto Clarendon Laboratory Department of Physics University of Oxford

The ever increasing number of wireless devices and systems has led to a crowded spectrum and increased the demand for versatile and multi-functional wireless apparatuses. Recently, metasurfaces have been explored as a prominent technological solution to the current paradigm of spectrum scarcity by opportunistically sharing the spectrum with various users. In general, metasurfaces are passive/dynamic,ultra-compact, multi-functional and programmable structures that are capable of both reciprocal and nonreciprocal signal-wave transmissions. The controllability and programmability of such metasurfaces are governed through dC bias and occasionally a radio-frequency modulation applied to the active components of the unit cells of the metasurface, e.g. diodes and transistors. This article overviews some of the recently proposed passive and dynamic metasurfaces and shows that metasurfaces can enhance the performance of wireless communication systems thanks to their unique physical features such as real-time signal coding,nonreciprocal-beam radiation, nonreciprocal beamsteering amplification and advanced pattern-coding multiple access communication.

关键词： metasurface beamsteering beamforming wireless communication time modulation wave engineering

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：