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Landscape ecology of the region around Qinghai Lake,Qinghai Province of China based on romote sensing

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Journal of Environmental Sciences 1999年第2期11卷 84-88页

作者： Ni Shao xiang, Jiang Jian jun, Wang Jie cheng College of Geographic Science, Nanjing Normal University, Nanjing 210097, China Gong Ai qi, Wang Wei jun General Grassland Station of Qinghai Province, Xining 810001, China f.voss Institute of

A region surrounding Qinghai Lake was chosen as the study area and nine ecological landscape types that were recognized based on Landsat TM image classification of land cover/use types along with the ancillary data, and their ecological features and the measures dealing with the eco environmental problems are presented in this paper. The study has shown that using this approach the ecological landscape types in a region like the study area can be readily recognized and their ecological features can be rather accurately derived. Moreover, the deterioration in near all landscape ecological types in the area is quite serious. Therefore, effective and proper measures have to be taken in order to realize a sustainable development of the region.

关键词： landscape ecology remote sensing Qinghai Lake.

Quantitative measurement of the mechanical properties of human antibodies with sub-lO-nm resolution in a liquid environment

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Nano Research 2015年第6期8卷 1987-1996页

作者： Agnieszka voss Center of Smart Interfaces Technische Universitot Darmstadt Alarich-Weiss-Str 10 64287 Darmstadt Germany Physics of Surfaces Institute of Materials Science Technische Universit~t Darmstadt Alarich-Weiss-Str. 16 64287 Darmstadt Germany

The nanomechanical properties of single human immunoglobulin G and M antibodies were measured in a liquid environment using a fast force-volume technique with sub-10-nm spatial resolution. The ultrastructural details of these molecules were resolved in the images. Simultaneously, important physical properties, including elasticity, adhesion, and deformation were measured. The dimensions and adsorption of the immunoglobulin M antibodies onto the substrate indicated that they are highly by a low elastic stiffness （34 ± 10 MPa） flexible. The antibodies were characterized and high deformability （1.5 ± 0.5 nm）.

关键词： atomic force microscopy structure and physicalproperties piconewton forces flexibility antibodies immunoglobulin

Blind Spots on Achilles’ Heel:The Limitations of Vulnerability and Resilience Mapping in Research

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International Journal of Disaster Risk Science 2014年第1期5卷 74-85页

作者： Jessica Heesen Daniel f.Lorenz Michael Nagenborg Bettina Wenzel Martin voss International Center for Ethics in the Sciences and Humanities(IZEW) University of Tu¨bingen72074 TubingenGermany Disaster Research Unit(DRU) Freie Universita¨t Berlin12165 BerlinGermany Department of Philosophy University of Twente7500 AE EnschedeNetherlands

The mapping of vulnerability and resilience has become an important tool for vulnerability and resilience *** definition,maps are selective ***,the predominant methods of mapping also have *** addressing vulnerability and resilience,these limitations,barriers,and blind spots have to be taken into *** aspects cannot be easily mapped,such as specific forms of knowledge and interpretation,the processuality of vulnerability and resilience,the dynamics of social processes,the context of origin,the establishment of contingent interpretations,and so *** limitations are not only theoretically important,but also are practically significant,since maps themselves become *** are regarded as representations of reality,shape particular interpretations of vulnerability and resilience,and are used as a basis for *** the unmapped preconditions of mapping remain unconsidered,this can lead to problematic side effects.

关键词： Cartographic bias foucault Mapping constraints Vulnerability mapping

Merging bound states in the continuum in an open acoustic resonator

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 124-131页

作者： Lujun Huang Bin Jia Artem S.Pilipchuk Sibo Huang Chen Shen Almas f.Sadreev Yong Li Andrey E.Miroshnichenko School of Physics and Electronic Sciences East China Normal University Institute of Acoustics Tongji University L.V.Kirensky Institute of Physics Department of Mechanical Engineering Rowan University School of Engineering and Technology University of New South Wales at Canberra

Bound states in the continuum （BICs） are perfectly localized resonances despite embedding in the continuum ***,an isolated BIC is very sensitive to the structure ***,we report merging acoustic BICs in a single open resonator,robust against the structure *** find that both symmetry-protected BIC and friedrich-Wintgen BIC are sustained in a single coupled waveguide-resonator *** varying the height and length of the resonator,these two BICs move toward each other and merge into a single one at a critical *** to an individual BIC,the merged BIC is robust against fabrication error because its Q-factor is proportional to ΔL-4,whereΔL embodies the structure *** essence of this extraordinary phenomenon is perfectly explained by the two-and three-level approximations of the effective nonHermitian ***,we present direct experimental demonstrations of the moving and merging of BICs in a coupled 3D waveguide-resonator,which are evidenced by the vanishing of the linewidth of fano resonance in the transmission *** results may find exciting applications in designing high-quality acoustic sources,sensors and filters.

关键词： acoustic resonances bound state in the continuum high-Q resonances

Analysis and Efficient Solution of Stationary Schrodinger Equation Governing Electronic States of Quantum Dots and Rings in Magnetic field

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Communications in Computational Physics 2012年第5期11卷 1591-1617页

作者： Marta M.Betcke Heinrich voss Department of Computer Science University College LondonGower StreetLondon WC1E 6BTUK Institute of Numerical Simulation Hamburg University of TechnologyD-21071 HamburgGermany

In this work the one-band effective Hamiltonian governing the electronic states of a quantum dot/ring in a homogenous magnetic field is used to derive a pair/quadruple of nonlinear eigenvalue problems corresponding to different spin orientations and in case of rotational symmetry additionally to quantum number±ℓ.We show,that each of those pair/quadruple of nonlinear problems allows for the minmax characterization of its eigenvalues under certain conditions,which are satisfied for our examples and the common InAs/GaAs *** the minmax property we devise efficient iterative projection methods simultaneously handling the pair/quadruple of nonlinear problems and thereby saving up to 40%of the computational time as compared to the nonlinear Arnoldi method applied to each of the problems separately.

关键词： Quantum dot quantum ring nonlinear eigenvalue problem minmax characterization iterative projection method electronic state spin orbit interaction magnetic field

GOAL: ZERO ENERGY BUILDING Exemplary Experience Based on the Solar Estate Solarsiedlung freiburg am Schlierberg, Germany

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Journal of Green Building 2009年第4期4卷 93-100页

作者： Mira Heinze Karsten voss University of Wuppertal Department D ArchitectureBuilding Physics and Technical Services

Zero energy *** goal sounds simple and is presented excessively in variations all over the *** and environmental politics demand zero consumption as a long-term goal,marketing has discovered the concept and fi rst buildings and settlements aiming at balanced energy or emission budgets have been *** an example,the German federal Government specifi es in its fi fth energy research programme(2005):for new buildings,the goal is to reduce the primary energy demand,*** energy demand for heating,domestic hot water,ventilation,air-conditioning,lighting and auxiliary energy,again by half compared to the current state of the *** long-term goal is zero-emission *** and the USA aim for zero carbon developments and net-zero energy buildings(DOE,2009)in political *** Vatican accepted the offer of climatic“indulgence”—and thus became the fi rst country in the world to completely compensate its carbon emission(Spiegel online,2007).Megaprojects in the growth regions of the Arabian Gulf and China advertise with a CO2-neutral balance.A Zero Carbon Community is to be created in Masdar,Abu Dhabi(foster,2007),and the fi rst Chinese carbon-neutral ecocity was planned for Dongtan,Shanghai(Pearce,2009).Not only to aid international communication,but also to further the processes required to solve energy-related problems,it is essential that key words,central concepts,their usage and their relationships be clarifi *** article intends to contribute to this clarifi cation based on the monitored example of a solar *** zero energy building,equilibrium building,carbon neutral city—the accounting method varies,depending on motivation and point of *** the focus is on fi nite and scarce resources,energy is the currency;CO2-equivalent emissions are considered if global warming and public health is the issue;the cost of energy is what concerns a tenant paying for heating and electricity.A balance in one set of units can be

关键词： net zero energy zero emission solar estate solarsiedlung freiburg am schlierberg monitoring

Inside the China-EU fDI Bond

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China & World Economy 2011年第4期19卷 92-108页

作者： Jeremy Clegg Hinrich voss European Integration and International Business Management Center for International BusinessLeeds University Business SchoolUniversity of Leeds Center for International Business Leeds University Business SchoolUniversity of Leeds

for some 20 years, the rate of investment by EU enterprises into China has been rising, reaching an annual average of some US$5bn over the 10 years to 2009. Conversely, the EU has not been a focus for Chinese investments, nor has Chinese investment been important to the EU despite the wide attention given to recent landmark cross-border acquisitions. Therefore, the overall impact of Chinese investment on the European economy is small. However, this situation might now be changing following institutional changes in the EU. In light of the potential for Chinese foreign direct investment to the EU, in this paper we outline the motives for, and patterns of Chinese outward investments to the EU, and the impacts that these investments might exert on the recipient.

关键词： China EU foreign direct investment multinational enterprises

Modulation of tau phosphorylation by environmental copper

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Translational Neurodegeneration 2014年第1期3卷 169-178页

作者： Kellen voss Christopher Harris Martina Ralle Megan Duffy Charles Murchison Joseph f Quinn Department of Neurology and Parkinson’s Disease Research Education and Clinical Care Center(PADRECC) Portland Veterans Affairs Medical CenterPortlandORUSA Department of Neurology Oregon Health and Sciences University3181 SW Sam Jackson Park RoadPortlandOR 97201USA Department of Molecular and Medical Genetics Oregon Health and Sciences UniversityPortlandORUSA

Background:The transition metal copper enhances amyloidβaggregation and neurotoxicity,and in models of concomitant amyloid and tau pathology,copper also promotes tau *** it is not clear if the effects of environmental copper upon tau pathology are dependent on the presence of pathological amyloidβ,we tested the effects of copper overload and complexing in disease models which lack pathological amyloidβ.Methods:We used cell culture and transgenic murine models to test the effects of environmental copper on tau *** used oral zinc acetate as a copper lowering agent in mice and examined changes in blood and brain metals through inductively coupled plasma mass *** effects of copper lowering were assessed with Morris water maze and novel object recognition *** in tau phosphorylation were examined by phosphorylation specific antibodies on Western ***:In human neuroblastoma cells,excess copper promoted tau phosphorylation and a copper complexing agent,tetrathiomolybdate,attenuated tau *** a transgenic mouse model expressing wild type human tau,copper-lowering by oral zinc suppressed plasma and brain levels of copper,and resulted in a marked attenuation of tau *** significant changes in behavior were observed with copper lowering,but a trend to improved recognition of the novel object was observed in zinc acetate treated ***:We propose that reduction of brain copper by blocking uptake of copper from the diet may be a viable strategy for modulating tau pathology in Alzheimer’s *** potential benefits of this approach are tempered by the absence of a behavioral benefit and by the health risks of excessive lowering of copper.

关键词： Copper Alzheimer’s disease Tau protein Transgenic mice

Integrated Disaster Risk Management(IDRM):Elements to Advance Its Study and Assessment

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International Journal of Disaster Risk Science 2023年第3期14卷 343-356页

作者： Vicente Sandoval Martin voss Verena florchinger Stephan Lorenz Parisa Jafari Disaster Research Unit Freie Universitat Berlin12165 BerlinGermany

This study analyzed the international key literature on integrated disaster risk management(IDRM),considering it a dynamic sociocultural process subjected to the historical process of social formation,offering a closer look at the concept while exploring conceptual elements and ideas to advance IDRM in both national and international ***,the study adopted a literature review strategy,following the Preferred Reporting Items for Systematic Reviews and MetaAnalyses(PRISMA)approach,combined with qualitative content *** article examines the history of IDRM,discusses current challenges for implementation,looks at some experiences,and proposes avenues for further *** findings point out the lack of an overarching IDRM approach,which is characterized by a rather disperse set of ideas and experiences concerning what IDRM is and how it should be operationalized,thereby revealing the need for a more comprehensive theory and methodologies to further advance *** findings highlight that IDRM encompasses different kinds and levels of"integrations"that go from internal(that is,disaster risk reduction and management domains)to external(that is,all societal processes such as sustainable development),including temporal and spatial ***,we are talking about a multidimensional integration of disaster risk *** this regard,the article proposes four dimensions for integration:sectoral,spatial/hierarchical,temporal,and externally with other cross-cutting societal challenges,especially climate change and sustainable *** dimensions cover 29 ideas for indicators or"proto-indicators"to guide the discussion,exploration,and analysis of IDRM in specific contexts.

关键词： Integrated disaster risk management Literature review Proto-indicators Sustainable development