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伊森伯格管理学院商业创新中心

当代建筑 2020年第2期 122-127页

作者：无 Yu Inamoto Pauline Lavie-Luong Hung kai Liao Alice Cladet Amina Blacksher Barbara Stallone Cheyenne Vandevoorde Daniel Kidd Davide Maggio Deborah Campbell Denys Kozak Derek Wong Domenic Schmid Douglass Alligood Elena Bresciani Emily Mohr Fabian Lorenz Francesca Portesine Ibrahim Salman Jan Leenknegt Justyna Mydlak kai-uwe bergmann Ku Hun Chung Linda Halim Lucas Hong Manon Otto Maria Eugenia Dominguez Mustafa Khan Nicolas Gustin Pei Pei Yang Peter Lee Seoyoung Shin Simon Lee Terrence Chew Tianqi Zhang Yixin Li BIG建筑事务所不详

位于马萨诸塞州艾摩斯特市的商业创新中心外墙为覆铜设计,极具现代艺术之感。该建筑为伊森伯格管理学院(全美排名前30的公立商学院)增加了7万***(约为0.6万m2)的超协作研究与社交空间。此次扩建和部分翻新使得伊森伯格管理学院的既有空... 详细信息

位于马萨诸塞州艾摩斯特市的商业创新中心外墙为覆铜设计,极具现代艺术之感。该建筑为伊森伯格管理学院(全美排名前30的公立商学院)增加了7万***(约为0.6万m2)的超协作研究与社交空间。此次扩建和部分翻新使得伊森伯格管理学院的既有空间几乎扩大了一倍,不仅能够满足该学院在过去十年间的快速发展需求,同时也为学院150多名教职人员和5000名本科、硕士及博士生引进了新的设施。

关键词：商业创新教职人员马萨诸塞州协作研究外墙社交空间伊森商学院

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伊森伯格管理学院商业创新中心

城市环境设计 2019年第2期118卷 54-61页

作者： Alice Cladet Amina Blacksher Barbara Stallone Beat Schenk Cheyenne Vandevoorde Daniel Kidd Davide Maggio Deborah Campbell Denys Kozak Derek Wong Domenic Schmid Douglass Alligood Elena Bresciani Emily Mohr Fabian Lorenz Francesca Portesine Ibrahim Salman Jan Leenknegt Justyna Mydlak kai-uwe bergmann Kristoffer Negendahl Ku Hun Chung Linda Halim Lucas Hong Manon Otto Maria Eugenia Dominguez Mustafa Khan Nicolas Gustin Pei Pei Yang Peter Lee Seoyoung Shin Simon Lee Terrence Chew Tianqi Zhang Tore Banke Yehezkiel Wiliardy Yixin Li Max Touhey Laurian Ghinitoiu 曲鸿

这座有着铜质外观的商业创新中心坐落于马萨诸塞大学阿默斯特分校的核心地带,是由BIG建筑事务所和建筑师Goody Clancy共同设计的。它的建成为这所全美排名前30的商学院增加了70000平方英尺(约6503平方米)的学习合作和社交的空间。新的... 详细信息

这座有着铜质外观的商业创新中心坐落于马萨诸塞大学阿默斯特分校的核心地带,是由BIG建筑事务所和建筑师Goody Clancy共同设计的。它的建成为这所全美排名前30的商学院增加了70000平方英尺(约6503平方米)的学习合作和社交的空间。新的扩建和部分翻新使伊森伯格管理学院现有的空间扩大了近一倍,为学院过去十

关键词：建筑事务所阿默斯特商业创新

Conceptual exploration of a gravity-assisted electrorheological fluid-based gripping methodology for assistive technology

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Bio-Design and Manufacturing 2019年第3期2卷 145-152页

作者： Ivo Radice Jeroen H.M.bergmann Department of Engineering Science Old Road Campus Research BuildingInstitute of Biomedical EngineeringUniversity of OxfordHeadingtonOxfordUK

Gripping devices help patients carry out everyday tasks and increase their ***,there seems to be a lack of bionic gripping technologies that can fully adapt to any possible shape,as the use of artificial fingers and predetermined grip settings limits the operating *** development of a more agile device,which is operated by a simple control paradigm,could greatly benefit *** electrorheological(ER)fluid system should be able to adapt to the shape of an object and then hold that *** aim of this study was to explore if a conceptual prototype of an ER system could hold a geometric shape when it is activated.A test rig was constructed with a moving part(set in different silicone oils)that could be displaced using a *** particles were dispersed in the silicone oils,and a field with a voltage of 4 kV mm?1 was generated to activate the *** results show that the developed system can support an increased force when activated and hold a simple geometric position without any noticeable *** outcome provides an initial proof of concept for a possible new(gravity-assisted)gripping approach using smart fluids,which could be developed with materials that are biocompatible and widely available.

关键词： Smart materials Prosthetics Exoskeleton Grasping Manipulation Assistive technologies

Semi-analytical calculation model for friction of polymers on the example of POM|PE-UHMW and steel|PE-UHMW

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Friction 2024年第10期12卷 2355-2369页

作者： André bergmann Jens SUMPF Niels DALLINGER Martin MONEKE Markus GOLDER Professorship of Conveying Engineering and Materials Handling Chemnitz University of TechnologySachsen 09126Germany Institute of Plastics Engineering Darmstadt University of Applied SciencesDarmstadt 64295Germany

In this paper,a semi-analytical calculation model for the coefficient of friction(COF)of single spherical protrusions is *** allows the prediction of the deformative friction part(μ_(def))and adhesive friction part(μ_(def))of the friction pairings steel|polyethylene with ultra-high molecular weight(PE-UHMW)and polyoxymethylene(POM)|*** experimental studies included unlubricated friction tests,which served to determine the total COF(μ_(def)),as well as tests being lubricated with silicone oil,from whichμ_(def)is *** on the verification tests,it could be shown that both states of lubrication result in the same deformation and that the relationship between the rear angle(w)andμ_(def)postulated in the calculation model is ***,friction tests with segmented spheres were carried out,which allow a specific variation of *** can be concluded that for both pairings theμ_(def)is generally of minor significance(approx.1/3μ_(tot))and the influence of theμ_(adh)predominates(approx.2/3μ_(tot))the friction *** themtot decreases with increasing contact pressure especially in the low pressure range and depends on the form of motion(continuous and discontinuous).

关键词： tribology friction polymers model contact polyoxymethylene(POM) polyethylene with ultra-high molecular weight(PE-UHMW)

Technological Options to Ameliorate Waste Treatment of Intensive Pig Production in China:An Analysis Based on Bio-Economic Model

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Journal of Integrative Agriculture 2014年第2期13卷 443-454页

作者： LU Wen-cong MA Yong-xi Holger bergmann China Academy of Rural Development Zhejiang University School of Economics and Management Zhejiang Sci-Tech University Department of Agricultural Economics and Rural Development University of Goettingen

Ameliorating waste treatment by technological improvements affects the economic and the ecological-environment benefits of intensive pig production. The objective of the research was to develop and test a method to determine the technical optimization to ameliorate waste treatment methods and gain insight into the relationship between technological options and the economic and ecological effects. We developed an integrated bio-economic model which incorporates the farming production and waste disposal systems to simulate the impact of technological improvements in pig manure treatment on economic and environmental benefits for the case of a pilot farm in Beijing, China. Based on different waste treatment technology options, three scenarios are applied for the simulation analysis of the model. The simulation results reveal that the economic-environmental benefits of the livestock farm could be improved by reducing the cropland manure application and increasing the composting production with the current technologies. Nevertheless, the technical efficiency, the waste treatment capacity and the economic benefits could be further improved by the introduction of new technologies. It implies that technological and economic support policies should be implemented comprehensively on waste disposal and resource utilization to promote sustainable development in intensive livestock production in China.

关键词： technological options waste treatment pig production bio-economic model economic-environmental effects

High Order ADER-IPDG Methods for the Unsteady Advection-Diffusion Equation

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Communications on Applied Mathematics and Computation 2024年第3期6卷 1954-1977页

作者： Michel bergmann Afaf Bouharguane Angelo Iollo Alexis Tardieu Centre Inria de l'Universite de Bordeaux Memphis TeamTalenceFrance Institut de Mathématiques de Bordeaux UMR CNRS 5251TalenceFrance Universitéde Bordeaux BordeauxFrance

We present a high-order Galerkin method in both space and time for the 1D unsteady linear advection-diffusion equation. Three Interior Penalty Discontinuous Galerkin (IPDG) schemes are detailed for the space discretization, while the time integration is performed at the same order of accuracy thanks to an Arbitrary high order DERivatives (ADER) method. The orders of convergence of the three ADER-IPDG methods are carefully examined through numerical illustrations, showing that the approach is consistent, accurate, and efficient. The numerical results indicate that the symmetric version of IPDG is typically more accurate and more efficient compared to the other approaches.

关键词： Advection-diffusion Galerkin Arbitrary high order DERivatives(ADER)approach Interior Penalty Discontinuous Galerkin(IPDG) High-order schemes Empirical convergence rates

An Accurate Cartesian Method for Incompressible Flows with Moving Boundaries

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Communications in Computational Physics 2014年第5期15卷 1266-1290页

作者： M.bergmann J.Hovnanian A.Iollo Inria F-33400 TalenceFranceUniv.BordeauxIMBUMR 5251F-33400 TalenceFranceCNRSIMBUMR 5251F-33400 TalenceFrance.

An accurate cartesian method is devised to simulate incompressible viscous flows past an arbitrary moving *** Navier-Stokes equations are spatially discretized onto a fixed Cartesian *** body is taken into account via the ghost-cell method and the so-called penalty method,resulting in second-order accuracy in *** accuracy and the efficiency of the solver are tested through two-dimensional reference *** show the versatility of this scheme we simulate a threedimensional self propelled jellyfish prototype.

关键词： Viscous incompressible flow immersed boundary method penalty method cartesian grid self-propelled jellyfish.

Living in a High Mountain Border Region:the Case of the'Bhotiyas'of the Indo-Chinese Border Region

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Journal of Mountain Science 2008年第3期5卷 209-217页

作者： Christoph bergmann Martin Gerwin Marcus Nüsser William S.Sax Department of Social Anthropology South Asia InstituteUniversity of Heidelberg Im Neuenheimer Feld 330 69120 HeidelbergGermany Department of Geography South Asia InstituteUniversity of Heidelberg

This article introduces one of South Asia's most important border regions into academic discourse, namely, the Central Himalayan mountain rim separating India and the Tibetan Autonomous Region (People's Republic of China). What makes this border region so interesting is a tangled interplay of changing environmental, cultural, and political forms to which the local populations constantly have to adapt in order to make a living there. We focused on the so-called 'Bhotiyas' of Uttarakhand, former trans-Himalayan traders whose ethnicity and livelihood was traditionally associated with the Indo-Chinese border that was sealed as a result of the India-China war in 1962. Drawing on the work of borderland scholarship, we identified the key processes and developments that changed the perspective of this area. Competing political aspirations as well as the 'Bhotiyas' countervailing strategies were considered equally important for understanding local livelihoods and identities within the dynamics of a 'high mountain border region'. Through an exemplary analysis of historical differences of power in one 'Bhotiya' valley, we further explored the ways in which shifting socio-spatial constellations are creatively re-interpreted by the borderlanders.

关键词： Uttarakhand trans-Himalayan trade Bhotiyas borderland study

Modeling uncertainties of reservoir flushing simulations

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International Journal of Sediment Research 2023年第5期38卷 698-710页

作者： Camila bergmann Goulart Tobias Bleninger Hugo de Oliveira Fagundes Fernando Mainardi Fan Department of Environmental Engineering Federal University of Parana Institute of Hydraulic Research Federal University of Rio Grande do Sul

Every dam or barrage construction affects the watercourse and the retention of sediment that previously was carried by the river, which can lead to siltation of the reservoir and obstruction of water intakes over time, reducing their capacities. However, the information available regarding the effect of sediment and drawdown parameters, sediment management at reservoirs, as well as different equational approaches,is scarce. The current research aims to evaluate the effect of parameters associated with numerical modeling of sediment management in reservoirs considering scenarios with different drawdowns,transport equations, sediment size distributions, and thickness of the initial sediment layer. The case study of the Aimore s Hydropower Plant(HPP) is used, applying the Delft3D-FLOW model for twodimensional modeling. All parameters influenced the volume of mobilized sediment, among which the initial layer thickness was the parameter that resulted in the greatest changes in simulated results. In general, the results show that the uncertainties in the input parameters outweigh the uncertainties between the techniques, which found large variations in results when evaluating the use of different transport equations. These results indicate the importance of proper estimation of model parameters for predicting effects with accuracy and the need for such studies before planning and management operations are evaluated to avoid environmental harm and energy waste.

关键词： Reservoir sedimentation Sediment transport modeling Flushing Sediment management