检索结果-南通市图书馆

Ozone pollution threatens bird populations to collapse:an imminent ecological threat?

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 Forestry Research 2023年第6期34卷 1653-1656页

作者： Evgenios Agathokleous Pierre Sicard Zhaozhong Feng elena Paoletti School of Applied Meteorology Nanjing University of Information Science&Technology(NUIST)Nanjing 210044People’s Republic of China ARGANS Sophia AntipolisFrance IRET-CNR Via Madonna del Piano 1050019 Sesto FiorentinoItaly

While bird populations are declining,the factors associated with this decline are *** on laboratory experiments,air pollution has long been recognized as a factor causing oxidative stress and adversely aff ecting bird ***,studies employing an epidemiological approach have reported signifi cant declines in avian populations in Central Europe and the United States due to air pollution,and ozone in *** advocate that urgent actions are needed to mitigate these eff ects,which threaten biodiversity and environmental health,and propose a series of measures which can enlighten the path toward mitigating air pollution eff ects on avian populations.

关键词： Air pollution Biosecurity Bird population Biodiversity Ornithology Ozone risk

维普期刊数据库

Bleeding with the artificial heart: Gastrointestinal hemorrhage in CF-LVAD patients

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2017年第22期23卷 3945-3953页

作者： Grigoriy E Gurvits elena Fradkov Division of Gastroenterology New York University School of Medicine/Langone Medical Center Department of Medicine New York University School of Medicine/Langone Medical Center

Continuous-flow left ventricular assist devices(CF-LVADs)have significantly improved outcomes for patients with end-stage heart failure when used as a bridge to cardiac transplantation or,more recently,as destination ***,its implantations carries a risk of complications including infection,device malfunction,arrhythmias,right ventricular failure,thromboembolic disease,postoperative and nonsurgical bleeding.A significant number of left ventricular assist devices(LVAD)recipients may experience recurrent gastrointestinal hemorrhage,mainly due to combination of antiplatelet and vitamin K antagonist therapy,activation of fibrinolytic pathway,acquired von Willebrand factor deficiency,and tendency to develop small intestinal angiodysplasias due to increased rotary speed of the *** bleeding in LVAD patients remains a source of increased morbidity including the need for blood transfusions,extended hospital stays,multiple readmissions,and overall *** of gastrointestinal bleeding in LVAD patients involves multidisciplinary approach in stabilizing the patients,addressing risk factors and performing structured endoluminal evaluation with focus on upper gastrointestinal tract including jejunum to find and eradicate culprit *** and procedural intervention is largely successful and universal bleeding cessation occurs in transplanted patients.

关键词： Gastrointestinal bleeding Left ventricular assist devices Heart failure Angioectasia Endoscopy

GREEN STAR—LEED’S AUSTRALIAN COUSIN

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 2007年第3期2卷 32-40页

作者： elena Bondareva Green Building Council of Australia

INTRODUCTION Within the global green building family,if one likens the US and the Australian Green Building Councils to siblings,Green Star and LEED can be viewed as *** sharing much of the same conceptual“genome,”they are appropriately different because they have“grown up”in different“families”and reflect unique sets of aspirations,influences,and *** in 2002,the Green Building Council of Australia(GBCA)is a dynamic not-for-profit organisation that is uniquely supported by all sectors of the industry(including Australia’s largest and most influential building owners,developers,and contractors),as well as all levels of government,academia,and non-government(NGO)*** GBCA was created with a mission to transition the property industry towards sustainability and drive the uptake of green building practices across *** GBCA achieves this,and grows a strong green platform to support both the local and international green building movement,through its environmental rating system for buildings,Green Star,as well as through its educational and knowledge-transfer activities,advocacy work,and research.

关键词： LEED Australia uniquely

Success Factors of Asia‐Pacific Fast‐Developing Regions’Technological Innovation Development and Economic Growth

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Innovation Studies 2017年第1期1卷 72-88页

作者： elena Litsareva Department of Oriental Studies Tomsk State UniversityTomsk 634050Russia

Asia‐Pacific’s fast‐developing countries and regions(FDCs)—South Korea,Taiwan Province of China,Singapore,Malaysia,and Thailand—demonstrate the most successful economic development *** government represents the primary guarantee of FDCs’economic and social *** and foreign investments and government policies to stimulate local and foreign businesses play a decisive role in the development of technological innovations in these *** these countries,basic research is increasing through the development of knowledge‐based industries,the role of research institutes,the applied research undertaken,and the value of educational *** cooperation between science and industry led to a change in the structure and nature of the economy,which has become increasingly dependent on new knowledge and ideas.

关键词： Fast‐developing countries Innovative environment Knowledge‐based economy Human resources

Unsettled Territories: Ruins and Cities in Chinese Contemporary Landscape Representation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Literary Studies in China-Selected Publications from Chinese Universities 2019年第1期13卷 25-48页

作者： elena Macri Independent Scholar

In his book Time in Ruins, the French anthropologist Marc Auge pointed out that Hhumanity is not in ruins, it is being built." These words well fit both the present-day Chinese context and the figurative trend of new shanshuihua in which construction sites, cityscapes and artificial nature territories become the subject of depiction. New iconic elements that provide a visual and conceptual framework for artists' construction of a different shanshui-type heavily indebted to Chinese social and environmental changes, these new coded depictions substitute the traditional representation of natural landscape, reflect the rise of a new sensibility about nature and challenge the idea of what landscape is in the context of Chinese contemporary art. By focusing on a variety of works related to the theme of art讦icial nature and representing paradigmatic images of physical and allegorical landscape, this paper aims to explore this visual and conceptual innovations introduced in the context of new shanshuihua and analyze the way in which artists use nature, trying to find a new aesthetic categorization for this artistic genre.

关键词： Chinese contemporary art new shanshuihua ecocriticism ruins landscape

Recent developments in Boolean networks control

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 Control and Decision 2016年第1期3卷 1-18页

作者： Ettore Fornasini Maria elena Valcher Dipartimento di Ingegneria dell’Informazione Universitàdi PadovaPadovaItaly

The aim of this survey paper is to provide the state of the art of the research on control and optimal control of Boolean control networks,under the assumption that all the state variables are accessible and hence available for *** and sufficient conditions for stabilisability to a limit cycle or to an equilibrium point are ***,it is shown that when such conditions are satisfied,stabilisation can always be achieved by means of state *** results are obtained for the safe control problem that is investigated for the first time in this *** and infinite horizon optimal control are subsequently considered,and solution algorithms are provided,based on suitable adaptations of theRiccati difference and algebraic ***,an appropriate definition of the cost function allows to restate and to solve both stabilisation and safe control as infinite horizon optimal control problems.

关键词： Boolean control networks algebraic representation controllability stabilisation optimal control safe control

The Fifth Edition of the General Catalogue of Variable Stars:experiences in the constellation Centaurus

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2018年第7期18卷 93-100页

作者： Nikolay N.Samus elena N.Pastukhova Olga V.Durlevich elena V.Kazarovets Institute of Astronomy Russian Academy of Sciences Sternberg Astronomical Institute Lomonosov Moscow University

We have recently announced that the General Catalogue of Variable Stars enters the stage of its fifth, purely electronic edition （GCVS 5.1）. We have included 1408 variable stars in the constellation Centaurus in this new version, GCVS 5.1. Working on this revision, we applied current possibilities from data mining, suggested new variability types for many variable stars and found new light elements for a large number of periodic variables. This paper describes the work completed during the preparation of GCVS 5.1 for Centaurus and discusses in detail a number of the most astrophysically significant cases.

关键词： catalogs - techniques photometric - stars variables general - binaries eclipsing

维普期刊数据库

Glyphosate Dissipation in Different Soils Under No-Till and Conventional Tillage

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2019年第6期29卷 773-783页

作者： elena OKADA JoséLuis COSTA Francisco BEDMAR Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Balcarce 7620(Argentina Estación Experimental Agropecuaria Balcarce Instituto Nacional de Tecnología Agropecuaria(INTA)Balcarce 7620(Argentina Facultad de Ciencias Agrarias Universidad Nacional de Mar del PlataBalcarce 7620(Argentina

Glyphosate is the most used herbicide in Argentina, accounting for 62% of the commercialized pesticides on the market. It is used as a weed controller in no-till systems, and it is also applied to various genetically modified crops ( e.g., soybean, corn, and cotton). Although it has a high solubility in water, it tends to adsorb and accumulate in agricultural soils. The main objectives of this work were to compare the dissipation of glyphosate and the accumulation of its metabolite aminomethylphosphonic acid (AMPA) over time in three soils from agricultural areas of Argentina under long-term management with no-till (NT) and conventional tillage (CT) practices. There were no differences in dissipation between NT and CT, indicating that the glyphosate-degrading microflora was not modified by the different tillage managements. Moreover, tillage practices did not alter the general soil properties;therefore, glyphosate bioavailability was not affected by NT or CT practice. Forty percent of the applied glyphosate was degraded within the first three days in all soils, indicating a fast initial dissipation rate. However, the dissipation rate considerably decreased over time, and the degradation kinetics followed a bi-exponential (or two-compartment) kinetic model. No differences were found between tillage practices. Dissipation was not related to the microbial activity measured as soil respiration. The fast decrease in the concentration of glyphosate at the beginning of the dissipation study was not reflected in an increase in the concentration of AMPA. The estimated half-lives for glyphosate ranged between 9 and 38 d. However, glyphosate bioavailability decreases over time, as it is strongly adsorbed to the soil matrix. This increases its residence time, which may lead to its accumulation in agricultural soils.

关键词： Aminomethylphosphonic acid Bioavailability Biodegradation Herbicide Metabolite Pesticide Two-compartment kinetic model

维普期刊数据库

The H∞ Robust Stability and Performance Conditions for Uncertain Robot Manipulators

在线全文

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2025年第1期 270-272页

作者： Geun Il Song Hae Yeon Park Jung Hoon kim the Department of Electrical Engineering Pohang University of Science and Technology (POSTECH) the Department of Electrical Engineering Pohang University of Science and Technology (POSTECH) the Institute for Convergence Research and Education in Advanced Technology Yonsei University

Dear Editor,H∞This letter develops a new framework for the robust stability and performance conditions as well as the relevant controller synthesis with respect to uncertain robot *** often exist model uncertainties between the nominal model and the real robot manipulator and disturbances. Hence, dealing with their effects plays a crucial role in leading to high tracking performances, as discussed in [1]–[5].

关键词：