检索结果-南通市图书馆

ECOLOGICALLY ENGINEERING CITIES THROUGH INTEGRATEd SUSTAINABLE SYSTEMS PLANNING

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 Green Building 2009年第1期4卷 58-75页

作者： isaac Brown Steve Kellenberg the EdAW Inc

INTROdUCTION Every day more evidence surfaces about the dire state of the *** and more,sustainable development is fundamentally about meeting human needs while restoring balance to the global ecosystem that is *** gas emissions reductions targets and other new environmental performance targets are rapidly being adopted across the globe to try to shore up this degradation.

关键词： environment. sustainable emissions

The Precarious Person in Pierre Bourdieu, Helmuth Plessner, and Psychocentric Culture

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Language and Semiotic Studies 2021年第3期7卷 130-160页

作者： isaac E.Catt duquesne University USA

Trends in human science seek to expand and situate the concept of the psychological individual emphasizing biology,society,or culture as causes,catalysts,or contexts.I enter the conversation,synthesizing Bourdieu and Plessner especially regarding ambivalent positionality,habitus,and the experience of ***’s conception of the cleft habitus/hexis of bodies in social space is interpreted alongside Plessner’s rendering of the lived-body(leib)and body-lived(körper).Beyond the materiality of the body(human being),both reject any essentialist ontology of the human person(being human)in a liberating axiology of communication in which life is lead and done as an open ***(1992,p.72)describes habitus as anti-individualist,anti-deterministic,and“anti-narcissistic”.Likewise,we must resist a bio-semiotic temptation to read Plessner as a proponent of culture’s origins in the *** and Plessner focus on structuralist-semiotic and constructivist-phenomenological conditions constraining and enabling the experience of *** fluid boundaries of human identity are grounded in the perception and expression of culture in social *** psychological,then,is an ongoing,emergent product of *** perspective is consequential,nurturing the contemporary critique of psychocentric discourse and opening possibilities for postpsychological culture.

关键词： Bourdieu Plessner semiotic phenomenology bio-semiotics habitus positionality psychocentric culture communication

Energy flexibility characteristics of centralized hot water system in university dormitories

在线全文

学校读者我要写书评

暂无评论

Building Simulation 2023年第4期16卷 641-662页

作者： Zhiqin Rao Shuqin Chen isaac Lun Lizhi Shen Ang Yu Huijun Fu College of Civil Engineering and Architecture Zhejiang UniversityHangzhou 310012China Center for Balance Architecture Zhejiang UniversityHangzhou 310012China department of Architecture and Built Environment University of Nottingham Ningbo ChinaNingbo 315100China department of General Affairs Zhejiang UniversityHangzhou 310012China

The large-scale application of renewable energy is an important strategy to achieve the goal of carbon neutrality in the building *** flexibility is essential for ensuring balance between energy demand and supply when targeting the maximum penetration rate of renewable energy during the operation of regional integrated energy *** the energy flexibility characteristics of centralized hot water systems,which are an important source of such flexibility,is of great significance to the optimal operation of regional integrated energy ***,in this study,based on the annual real-time monitoring data,the energy flexibility of the centralized hot water system in university dormitories is evaluated from the perspective of available storage capacity(C_(AdR)),recovery time(t_(recovery)),and storage efficiency(η_(AdR)),by the data-driven simulation *** factors influencing the energy flexibility of the centralized hot water system are also *** storage capacity has a strong positive correlation with daily water consumption and a strong negative correlation with daily mean outdoor *** associations indicate that increased water use on the energy flexibility of the centralized hot water system is conducive to optimal *** contrast,higher outdoor temperature is *** hourly mean value of the available storage capacity in spring and winter is found to be around 80 kWh in the daytime,and about twice that in summer and *** time is evenly distributed throughout the year,while t_(recovery)/C_(AdR)in spring and winter is about half that in *** storage efficiency was significantly higher in spring,summer,and winter than in *** hourly mean storage efficiency was found to be about 40%in the *** benefits of activating energy flexibility in spring and winter are the best,because these two seasons have higher available storage capacity and storage efficiency,while the benefit

关键词： energy flexibility centralized hot water system university dormitory back propagation(BP)neural network

Perspectives on the clinical management ocalized prostate cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2014年第4期16卷 511-514页

作者： Joel B nelson department of Urology University of Pittsburgh School of Medicine Pittsburgh Pennsylvania USA.

defined broadly, prostate cancer has two states： An indolent histologicalmanifestation of a locally proliferative and invasive process or a clinically relevant, potentially lethal disease. Likewise, the management of clinically localized prostate cancer must address two questions： what sort of disease is this and what needs to be done.

关键词： @@

Nonlinear oscillation characteristics of magnetic microbubbles under acoustic and magnetic fields

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2022年第3期31卷 329-341页

作者： Lixia Zhao Huimin Shi isaac Bello Jing Hu Chenghui Wang Runyang Mo Shaanxi Key Laboratory of Ultrasonics School of Physics and Information TechnologyShaanxi Normal UniversityXi'an 710119China department of Chemistry Ahmadu Bello UniversityZaria 810001Nigeria

Microbubbles loaded with magnetic nanoparticles(MMBs) have attracted increasing interests in multimode imaging and drug/gene delivery and targeted therapy. However, the dynamic behaviors generated in diagnostic and therapeutic applications are not clear. In the present work, a novel theoretical model of a single MMB was developed, and the dynamic responses in an infinite viscous fluid were investigated under simultaneous exposure to magnetic and acoustic fields. The results showed that the amplitude reduces and the resonant frequency increases with the strength of the applied steady magnetic field and the susceptibility of the magnetic shell. However, the magnetic field has a limited influence on the oscillating. It is also noticed that the responses of MMB to a time-varying magnetic field is different from a steady magnetic field. The subharmonic components increase firstly and then decrease with the frequency of the magnetic field and the enhanced effect is related to the acoustic driving frequency. It is indicated that there may be a coupling interaction effect between the acoustic and magnetic fields.

关键词： magnetic microbubbles ultrasound magnetic field nonlinear oscillation

Border Work in Precarity and Boundary Play in Communicology

在线全文

学校读者我要写书评

暂无评论

Language and Semiotic Studies 2018年第2期4卷 93-109页

作者： isaac E. Catt duquesne University USA

This essay considers borders as symbols of precarity and the possibility of re-framing them through boundary play. While borders were historically installed as military defenses they are now chiefly used to prevent and control migrants. My argument is against the either-or thinking that prevails in bordering and othering. Prominent social science perspectives are considered. By focusing on the semiotic phenomenological relations of homeland, homeworld, and lifeworld the possibilities of play at the boundaries of conscious experience are revealed. My disciplinary perspective is communicology, the human science of embodied discourse.

关键词： homeland homeworld lifeworld play semiotic phenomenology Plessner communicology

Nitrogen doped Lotus-stem and Porous Carbonized Egg as Electrocatalyst for Oxygen Reduction Reaction

在线全文

学校读者我要写书评

暂无评论

Nitrogen Doped Lotus-stem and Porous Carbonized Egg as Elect...

作者： isaac KESSE 江苏大学

学位级别：硕士

燃料电池是一种将燃料的化学能转化为电能的装置。燃料电池因其对环境的友好性而受到人们的广泛关注。燃料电池的副产品主要是是废热和水,是一种无污染的能源技术。阴极氧还原反应（ORR）主要使用贵金属为催化剂,价格昂贵。为实现燃料...

燃料电池是一种将燃料的化学能转化为电能的装置。燃料电池因其对环境的友好性而受到人们的广泛关注。燃料电池的副产品主要是是废热和水,是一种无污染的能源技术。阴极氧还原反应（ORR）主要使用贵金属为催化剂,价格昂贵。为实现燃料电池的商业化,需要发展低成本ORR催化剂。N、S等杂原子掺杂的碳材料价格低廉,活性与商业Pt/C催化剂相当,稳定性优异,是潜在地能够替代贵金属的燃料电池ORR催化剂。本文进行了低成本N、S等异质原子掺杂的多孔碳（石墨）材料的制备,发现骑在碱性介质中催化ORR活性和稳定性的均明显优于商业Pt/C催化剂。本论文主要包括以下两方面的内容:一、合成了N、S和Fe掺杂的荷花茎石墨碳（NSFe-LG）。研究了孔径大小、石墨化程度、N含量、Fe含量、S含量等因素对ORR活性和稳定性的影响。结果表明,N含量对ORR活性有至关重要的影响,S能促进N的掺杂,NSFe-LG在碱性介质中的ORR活性优于商业Pt/C,并具有优异的稳定性。二、合成了多级孔结构的蛋清碳（EW）;其中在650 o C合成的EW（EW-650）具有超高的比表面积（1904 m2 g-1）、大的平均孔径（9.8 nm）、高浓度的杂原子（N、O和S）、较高的石墨化度和高浓度的缺陷,这对应着高浓度的的活性位以及优异的物料传输性能和导电性。电化学测试结果表明,在碱性介质中,EW-650比商业Pt/C具有更高的催化ORR的活性和稳定性。异质原子的掺杂能够改变碳基体的电荷中心,产生显著的ORR催化活性。而较高的异质原子掺杂浓度、大的比表面积和较高的导电性大大提高了所合成材料的活性和稳定性。本工作制得的非贵金属催化剂成本低、活性和稳定性优异、制备方法简单,其孔径、石墨度和异质原子含量等可控,具有潜在的商业应用价值。

关键词：

Refining spatial neighbourhoods to capture terrain effects

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Ecological Processes 2012年第1期1卷 98-108页

作者： Trisalyn A nelson Colin Robertson Spatial Pattern Analysis and Research Lab Department of GeographyUniversity of VictoriaPO Box 3060VictoriaBritish ColumbiaV8W 3R4SCanada department of Geography and Environmental Studies Wilfrid Laurier UniversityWaterlooOntarioN2L 3C5Canada

Introduction:Spatially explicit ecological research has increased substantially in the past 20 *** spatial approaches require the definition of a spatial neighbourhood or the region over which spatial relationships are modelled or *** neighbourhood definitions impact analysis results,and there are benefits in considering neighbourhood definitions that better capture ecological *** goal of this research is to present a simple and flexible approach in constraining ecological spatial neighbourhoods using terrain ***:Using watershed boundaries,we can restrict spatial neighbourhoods from combining populations or processes that should be separated by terrain *** demonstrate the need for ecological constraints by way of a simulation study and highlight our approach with a case study examining mountain pine beetle(dendroctonus ponderosae,Coleoptera;Hopkins)infestation hot ***:Our results demonstrate how failure to constrain neighbourhoods can lead to errors when the spatial signals from unrelated populations are ***,unconstrained spatial neighbourhoods can unintentionally detect spatial relationships across many ***:There will be benefits to studies that develop new,ecology-based approaches in defining spatial neighbourhoods that better illuminate ecological function of phenomena under study.

关键词： spatial weights spatial analysis spatial ecology hot spots topography

A review of friction stir welding of steels： Tool, material flow, microstructure, and properties

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 Materials Science & Technology 2018年第1期34卷 39-57页

作者： F.C. Liu Y. Hovanski M.P. Miles C.d. Sorensen T.W. nelson department of Mechanical Engineering Brigham Young University Provo UT 84602. USA Manufacturing Engineering Technology Brigham Young University Provo UT 84602 USA

Considerable progress has been achieved in friction stir welding （FSW） of steels in every aspect of tool fab- rication, microstructure control and properties evaluation in the past two decades. With the development of reliable welding tools and precise control systems, FSW of steels has reached a new level of technical maturity. High-quality, long welds can be produced in many engineering steels. Compared to traditional fusion welding, FSW exhibits unique advantages producing joints with better properties. As a result of active control of the welding temperature and/or cooling rate, FSW has the capability of fabricating steel joints with excellent toughness and strength. For example, unfavorable phase transformations that usu- ally occur during traditional welding can be avoided and favorable phase fractions in advanced steels can be maintained in the weld zone thus avoiding the typical property degradations associated with fusion welding. If phase transformations do occur during FSW of thick steels, optimization of microstructure and properties can be attained by controlling the heat input and post-weld cooling rate.

关键词： Joining Stainless steels Carbon steels High strength low alloy (HSLA) steels Advanced high strength steels (AHSS) Oxide dispersion strengthened (OdS) steels