检索结果-南通市图书馆

Toward a typology of sustainability for cities

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 Traffic and Transportation Engineering(English Edition) 2014年第3期1卷 180-195页

作者： ken Doust Windana Research Pty Ltd & Research Centre for Integrated Transport Innovation(rCITI) University of New South WalesSydneyAustralia

Sustainability responses must accelerate to avoid major risks to cities. Climate change impact on cities, likely to be significant if global sustainability initiatives are not quickened, is a paramount example of the risk. World wide meetings of city planning practitioners and researchers agree that an urgent agenda is to work together to empower cities and their governments with funds, tools and mentoring to make the responses needed. In the spirit of this urgent agenda, this paper introduces some prac- tical methods for assessing sustainability associated with transport and urban form in our cities. A concept of strategic scans of future scenarios, which underpins the backcasting approach, has been introduced at the 12th World Conference on Transport Research（WCTR） in 2010 and has broken urban and transport planning trend. These strategic scans are based on a sustainability framework, the elements of which provide evidence based drivers of sustainability. The framework culminates in metric visualisations for each of the three pillars of sustainability. The paper details some of the operational aspects of these metrics in the form of environmental sustainability-accessibility space, putting into practice measures of environmental stewardship, social equity, economic efficiency, and the relationship among them. The paper concludes with a call of developing a typology of sustainability performance using the strategic scan methodology to extend the principles of the methodology into a useful tool for city governments and contribute to assembling a database of city forms, transport structures, and their sustainability performances.

关键词： transport sustainability cities backcasting climate change metrics

Connecting Concepts of Cultural Landscape and Historic Urban Landscape: The Politics of Similarity

在线全文

学校读者我要写书评

暂无评论

Built Heritage 2018年第3期2卷 53-67页

作者： ken Taylor College of Arts and Social Sciences Australian National UnivesityCanberraAustralia

This paper projects the concept of cultural landscapes into the realm of urban conservation in the context of the Historic Urban Landscape(HUL)*** do this I take an historical overview of how,during the latter half of the 1980s and early 1990s,academic and professional interest in heritage studies started to embrace the cultural landscape *** movement continued through the 2000s with increasing links between theory and practice on urban conservation concerns and the concept of cities as cultural *** this connection the move in 2011 by UNESCO with the Recommendation on the Historic Urban Landscape is particularly *** were two significant *** was increasing questioning of heritage as focusing narrowly on the monuments and sites *** has been the growing appreciation that urban conservation locking onto separate historic towns or specific parts of cities is counter-productive;it ignores towns and cities as holistic entities isolating historic areas virtually as museum pieces separate from the rest of the urban fabric and lacking *** contrast HUL with its landscape approach is a process1 that embraces-city-wide-cultural,natural,tangible and intangible,social,economic,visual and experiential aspects of the physical morphology of the city and the image of the city;it underpins the fundamental concept of urban areas as a series of layers through time that link past,present and future as in the construct of cultural landscape.

关键词： cultural landscape urban conservation historic urban landscape heritagisation charters values communities

Correlation of the largest craters,stratigraphic impact signatures,and extinction events over the past 250 Myr

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

Geoscience Frontiers 2017年第6期8卷 1241-1245页

作者： Michael R.Rampino ken Caldeira Department of Biology New York University100 Washington Square EastNew YorkNY 10003USA NASA Goddard Institute for Space Studies2880 BroadwayNew YorkNY 10025USA Carnegie Institute for Science Department of Global Ecology260 Panama St.StanfordCA 94305USA

The six largest known impact craters of the last 250 Myr(≥70 km in diameter),which are capable of causing significant environmental damage,coincide with four times of recognized extinction events at 36(with 2 craters),66,and 145 Myr ago,and possibly with two provisional extinction events at 168 and215 Myr *** impact cratering events are accompanied by layers in the geologic record interpreted as impact *** occurrences of impacts and extinctions can be rejected at confidence levels of99.96%(for 4 impact/extinctions)to 99.99%(for 6 impact/extinctions).These results argue that several extinction events over the last 250 Myr may be related to the effects of large-body impacts.

关键词： Extinctions Impact craters Ejecta layers

New Lives, New Landscapes. Landscape, Heritage and Rural Revitalisation: Whose Cultural Values?

在线全文

学校读者我要写书评

暂无评论

Built Heritage 2019年第2期3卷 50-63页

作者： ken Taylor College of Arts and Social Sciences Australian National UniversityCanberraAustralia

Worldwide interest in the cultural landscape concept-covering rural and urban spheres-is now a major theme in considerations of the management of cultural heritage *** roots of this interconnection lie in the social,political and economic relationships between people and landscape which,in turn,is related to how human attachment to landscape plays a major role in determining our sense of *** the fundamental actuality of place attachment through landscape is cross *** it crosses the boundaries of differing values across diverse cultures underscoring the fundamental cross cultural significance of ***incidentally the phenomenon of the‘rise of cultural landscapes’(Jacques 1995)has been intimately interconnected with the way in which thinking has changed-philosophically and professionally-on what heritage *** is in effect a clear link between heritage and *** is in this context that this paper addresses challenges of thinking and acting associated with China’s commitment to a rural revitalisation program.

关键词： landscape culture heritage identity authenticity rural revitalisation tourism traditional villages

Effects of selenium-containing compounds on Cu^(2+)/Zn^(2+)-induced neuronal cell death and potential application as therapeutic agents for neurological diseases

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

Neural Regeneration Research 2022年第2期17卷 311-312页

作者： ken-ichiro Tanaka Mikako Shimoda Masahiro Kawahara Department of Bio-Analytical Chemistry Faculty of PharmacyMusashino UniversityShinmachiNishitokyoTokyoJapan

In many tissues, trace metals such as iron(Fe), zinc(Zn), and copper(Cu) are important for various physiological functions such as immune function, cell division, and enzyme function. However, it has been shown in humans and experimental animal models that excessive amounts of these trace metals in the body can induce various diseases in the central nervous system, liver.

关键词： metals potential copper

Chitosan and chemically modified chitosan beads for acid dyes sorption

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2009年第3期21卷 296-302页

作者： AZLAN Kamari WAN SAIME Wan Ngah LAI ken Liew Department of Chemistry Faculty of Science and Technology Universiti Pendidikan Sultan Idris School of Chemical Sciences Universiti Sains Malaysia

The capabilities of chitosan and chitosan-EGDE （ethylene glycol diglycidyl ether） beads for removing Acid Red 37 （AR 37） and Acid Blue 25 （AB 25） from aqueous solution were examined. Chitosan beads were cross-linked with EGDE to enhance its chemical resistance and mechanical strength. Experiments were performed as a function ofpH, agitation period and concentration of AR 37 and AB 25. It was shown that the adsorption capacities of chitosan for both acid dyes were comparatively higher than those of chitosan- EGDE. This is mainly because cross-linking using EGDE reduces the major adsorption sites -NH3＋ on chitosan. Langmuir isotherm model showed the best conformity compared to Freundlich and BET. The kinetic experimental data agreed very well to the pseudo second-order kinetic model. The desorption study revealed that after three cycles of adsorption and desorption by NaOH and HCl, both adsorbents retained their promising adsorption abilities. FT-IR analysis proved that the adsorption of acid dyes onto chitosan-based adsorbents was a physical adsorption. Results also showed that chitosan and chitosan-EGDE beads were favourable adsorbers and could be employed as low-cost alternatives for the removal of acid dyes in wastewater treatment.

关键词： cross-linking acid dyes adsorption capacities adsorption rates adsorption isotherm desorption

A pulse of the Earth: A 27.5-Myr underlying cycle in coordinated geological events over the last 260 Myr

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2021年第6期12卷 236-242页

作者： Michael R.Rampino ken Caldeira Yuhong Zhu Departments of Biology and Environmental Studies New York University100 Washington Square EastNew YorkNY 10003USA Department of Global Ecology Carnegie Institution for Science290 Panama StreetStanfordCA 94305USA Center for Data Science New York University60 Fifth AvenueNew YorkNY 10011USA

We performed spectral analyses on the ages of 89 well-dated major geological events of the last 260 Myr from the recent geologic literature. These events include times of marine and non-marine extinctions,major ocean-anoxic events, continental flood-basalt eruptions, sea-level fluctuations, global pulses of intraplate magmatism, and times of changes in seafloor-spreading rates and plate reorganizations. The aggregate of all 89 events shows ten clusters in the last 260 Myr, spaced at an average interval of ~ 26.9 Myr, and Fourier analysis of the data yields a spectral peak at 27.5 Myr at the ≥96% confidence level. A shorter period of ~ 8.9 Myr may also be significant in modulating the timing of geologic *** results suggest that global geologic events are generally correlated, and seem to come in pulses with an underlying ~ 27.5-Myr cycle. These cyclic pulses of tectonics and climate change may be the result of geophysical processes related to the dynamics of plate tectonics and mantle plumes, or might alternatively be paced by astronomical cycles associated with the Earth’s motions in the Solar System and the Galaxy.

关键词： Global geological events Fourier analysis Cyclic pulses Tectonics Correlations

Low-loss wide-bandwidth planar transmission line with a laminated conductor

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2023年第5期66卷 248-256页

作者： ken NING Xiao-Chun LI Yan SHAO Junfa MAO Key Laboratory of Ministry of Education of Design and Electromagnetic Compatibility of High-Speed Electronic Systems Shanghai Jiao Tong University

In this paper, the laminated conductor technology is first introduced to planar-integrated transmission lines. The laminated conductor is composed of multilayers of metal and insulator, which has a lower conductor loss than a solid conductor. Based on the silicon-based micro electromechanical system technology,a laminated coplanar waveguide(CPW) with wide bandwidth and low loss is proposed, which uses a laminated conductor for signal lines and grounds. A laminated CPW and its transition are designed, fabricated,and measured. The simulation results show that the laminated CPW with many insulator layers has a low conductor loss. The measurement results illustrate that the average insertion loss of the laminated CPW is0.65 d B from DC to 40 GHz, which is 44.4% smaller than that of the solid CPW.

关键词： coplanar waveguide (CPW) laminated conductor conductor loss skin effect silicon-based technology wide-bandwidth

In situ formation of an intimate solid-solid interface by reaction between MgH_(2) and Ti to stabilize metal hydride anode with high active material content

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2024年第8期12卷 3193-3203页

作者： Yixin Chen Atsushi Inoishi Shigeto Okada Hikari Sakaebe ken Albrecht Interdisciplinary Graduate School of Engineering Sciences Kyushu UniversityKasuga-koen 6-1KasugaFukuoka 816-8580Japan Institute for Materials Chemistry and Engineering Kyushu UniversityKasuga-koen 6-1KasugaFukuoka 816-8580Japan Transdisciplinary Research and Education Centre for Green Technology Kyushu UniversityKasuga-koen 6-1KasugaFukuoka 816-8580Japan

MgH_(2) and TiH_(2) have been extensively studied as potential anode materials due to their high theoretical specific capacities of 2036 and 1024 mAh/g,***,the large volume changes that these compounds undergo during cycling affects their performance and limits practical *** present work demonstrates a novel approach to limiting the volume changes of active *** effect is based on mechanical support from an intimate interface generated in situ via the reaction between MgH_(2) and Ti within the electrode prior to lithiation to form Mg and TiH_(2).The resulting Mg can be transformed back to MgH_(2) by reaction with LiH during *** addition,the TiH_(2) improves the reaction kinetics of MgH_(2) and enhances electrochemical *** intimate interface produced in this manner is found to improve the electrochemical properties of a MgH_(2)-Ti-LiH *** exceptional reversible capacity of 800 mAh/g is observed even after 200 cycles with a high current density of 1 mA/cm^(2) and a high proportion of active material(90 wt.%)at an operation temperature of 120℃.This study therefore showcases a new means of improving the performance of electrodes by limiting the volume changes of active materials.

关键词： All-solid-state battery In situ formation of solid electrolyte In situ formed intimate interface MgH_(2)anode