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The heterogeneity-diversity-system performance nexus

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National Science Review 2023年第7期10卷 251-260页

作者： Nico Eisenhauer Gerrit Angst Ana E.B.Asato Rémy Beugnon Elisabeth B?nisch Simone Cesarz peter dietrich Stephanie D.Jurburg Anna-Maria Madaj Rine C.Reuben Christian Ristok Marie Sünnemann Huimin Yi Carlos A.Guerra Jes Hines German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig Institute of Biology Leipzig University Institute of Soil Biology and Biogeochemistry Biology Centre of the Czech Academy of Sciences Leipzig Institute for Meteorology Universit?t Leipzig CEFE Univ Montpellier CNRS EPHE IRD Department of Environmental Microbiology Helmholtz Centre for Environmental Research – UFZ

Ever-growing human population and nutritional demands,supply chain disruptions,and advancing climate change have led to the re alization that changes in diversity and system performance are intimately linked.Moreover,diversity and system performance depend on heterogeneity.Mitigating changes in system performance and promoting sustainable living conditions requires transformative decisions.Here,we introduce the heterogeneity-diversity-system performance(HDP) nexus as the conceptual basis upon which to formulate transformative decisions.We suggest that managing the heterogeneity of systems will best allow diversity to provide multiple benefits to people.Based on ecological theory,we pose that the HDP nexus is broadly applicable across systems,disciplines,and sectors,and should thus be considered in future decision making as a way to have a more sustainable global future.

关键词： heterogeneity diversity biodiversity-ecosystem functioning global change homogenization

Diverse plant mixtures sustain a greater arbuscular mycorrhizal fungi spore viability than monocultures after 12 years

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Journal of Plant Ecology 2020年第4期13卷 478-488页

作者： peter dietrich Christiane Roscher Adam Thomas Clark Nico Eisenhauer Bernhard Schmid Cameron Wagg Institute of Ecology and Evolution Friedrich-Schiller-University JenaDornburger Strasse 15907743 JenaGermany Department of Evolutionary Biology and Environmental Studies University of ZurichWinterthurerstrasse 1908057 ZurichSwitzerland Department of Physiological Diversity UFZHelmholtz Centre for Environmental ResearchPermoserstrasse 1504318 LeipzigGermany German Centre of Integrative Biodiversity Research(iDiv)Halle-Jena-Leipzig Deutscher Platz 5e04103 LeipzigGermany Institute of Biology Leipzig UniversityDeutscher Platz 5e04103 LeipzigGermany Department of Geography University of ZurichWinterthurerstrasse 1908057 ZurichSwitzerland Fredericton Research and Development Center Agriculture and Agri-Food Canada850 Lincoln RoadFrederictonNew Brunswick E3B 1P9Canada

密集的土地管理可能损害土壤生物多样性,从而危害长期的土壤生产力。丛枝菌根真菌(AMF)通过与植物专一性的共生关系,在促进土壤生产力方面发挥着关键作用。然而,目前尚不清楚植物群落的性质,特别是植物物种丰富度和组成如何影响土壤中AM... 详细信息

密集的土地管理可能损害土壤生物多样性,从而危害长期的土壤生产力。丛枝菌根真菌(AMF)通过与植物专一性的共生关系,在促进土壤生产力方面发挥着关键作用。然而,目前尚不清楚植物群落的性质,特别是植物物种丰富度和组成如何影响土壤中AMF种群的生存能力。本研究中,我们测试了来自不同植物功能类群的8种植物的单一栽培和不同植物的混合种植,是否可以维持更有活力的AMF繁殖体。为了回答这个问题,我们从12年的单种植物和混种植物中提取AMF孢子,并通过因子设计将单株AMF孢子与单株植物配对,并考察与AMF孢子来源和植物物种特性的交互作用。研究结果表明,不同植物混合种植的AMF孢子比单一栽培的AMF孢子更能成功地定植于多种植物和植株个体中。此外,我们还发现,来自不同混合种植的AMF孢子比来自单一栽培的AMF更能显著提高白车轴草(Trifolium repens L.)的生物量。与单一栽培相比,起源于不同植物混合种植的AMF孢子的生存能力和与多种植物相互作用的能力更强。我们的研究结果首次表明,多样的植物群落可以维持土壤中AMF的活力,也证明了多样的植物群落有潜力维持AMF繁殖体的活力对土壤健康和生产力至关重要。

关键词：地上-地下相互作用生物多样性生物量生产互惠共生植物-丛枝菌根真菌相互作用根系定植

稳定、精确的流量检测更好地满足生物制药生产对检测技术的要求

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流程工业 2013年第5期 48-50页

作者： peter dietrich Endress+Hauser检测技术公司

生物制药技术在全世界范围内已得到广泛应用，而克利奥里流量检测仪在生物技术领域中的应用也越来越多，这～检测技术拥有功能多样、稳定、坚固耐用、易于保养、安装简单等优点，满足了该领域的卫生消毒要求。

关键词：生物技术领域流量检测仪检测技术制药生产稳定世界范围制药技术卫生消毒

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精确的气体流量测量

流程工业 2012年第19期 36-38页

作者： peter dietrich

在整个流程工业领域中，目前大约35％的气体都是利用流量计检测气体的流量。从简单的气体流量检测到复杂的压缩空气网络的气体流量检测，再到有特定检测要求的乙烯气体测量，检测的范围非常广泛，而且每一种应用都对检测系统提出了特殊... 详细信息

在整个流程工业领域中，目前大约35％的气体都是利用流量计检测气体的流量。从简单的气体流量检测到复杂的压缩空气网络的气体流量检测，再到有特定检测要求的乙烯气体测量，检测的范围非常广泛，而且每一种应用都对检测系统提出了特殊的的要求。但有一点在所有的气体检测技术中都是相同的，那就是必须精确!

关键词：气体流量测量气体流量检测气体检测技术工业领域压缩空气气体测量检测要求检测系统

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沼气生产过程中的关键性检测

流程工业 2012年第13期 40-41页

作者： peter dietrich Endress+Hauser公司

在生产沼气设备中，沼气的冷凝、较低的生产过程压力和较高的检测波动性等对流量计提出了很高的要求，尤其是直接在沼气生产设备中进行检测的情况下。对此，Endress＋Hauser公司专门研发生产了新型超声波流量计，它能够在原产料成分变... 详细信息

在生产沼气设备中，沼气的冷凝、较低的生产过程压力和较高的检测波动性等对流量计提出了很高的要求，尤其是直接在沼气生产设备中进行检测的情况下。对此，Endress＋Hauser公司专门研发生产了新型超声波流量计，它能够在原产料成分变化很大的情况下可靠、准确地检测出沼气的流量。

关键词：生产过程沼气检测超声波流量计生产设备成分变化波动性

未来型的流量检测技术利用超声波连续检测技术保障流量检测避免交叉污染

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流程工业 2012年第11期 100-100,102页

作者： peter dietrich 德国Weil市Endress+Hauser公司

利用Clamp．On超声波流量检测技术可在流程设备管道系统外部对管道流量进行检测，在超纯水生产设备和WFI—Loops注射用水生产设备中，这一技术保证了很高的产品安全性、并不会产生交叉污染。

关键词：检测技术流量检测交叉污染超声波利用未来型保障生产设备

GOBO projection for 3D measurements at highest frame rates: a performance analysis

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Light(Science & Applications) 2018年第1期7卷 379-391页

作者： Stefan Heist Patrick dietrich Martin Landmann peter Kühmstedt Gunther Notni Andreas Tünnermann Institute of Applied Physics Abbe Center of PhotonicsFriedrich Schiller University07745 JenaGermany Fraunhofer Institute for Applied Optics and Precision Engineering IOF 07745 JenaGermany Department of Mechanical Engineering Ilmenau University of Technology98693 IlmenauGermany

Aperiodic sinusoidal patterns that are cast by a GOBO(GOes Before Optics)projector are a powerful tool for optically measuring the surface topography of moving or deforming objects with very high speed and accuracy.We optimised the first experimental setup that we were able to measure inflating car airbags at frame rates of more than 50 kHz while achieving a 3D point standard deviation of~500μm.Here,we theoretically investigate the method of GOBO projection of aperiodic sinusoidal fringes.In a simulation-based performance analysis,we examine the parameters that influence the accuracy of the measurement result and identify an optimal pattern design that yields the highest measurement accuracy.We compare the results with those that were obtained via GOBO projection of phase-shifted sinusoidal fringes.Finally,we experimentally verify the theoretical findings.We show that the proposed technique has several advantages over conventional fringe projection techniques,as the easy-to-build and cost-effective GOBO projector can provide a high radiant flux,allows high frame rates,and can be used over a wide spectral range.

关键词： projection frame performance

Noninvasively diagnosing coronary artery disease with 61-channel MCG data

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Chinese Science Bulletin 2014年第11期59卷 1123-1128页

作者： Tuo Chen Chen Zhao Shiqin Jiang peter Van Leeuwen dietrich Grnemeyer School of Electronics and Information Engineering Tongji University Grnemeyer Institute for Microtherapy Faculty of HealthUniversity Witten/Herdecke

Magnetocardiography(MCG) has been investigated as a tool for noninvasive detection of coronary artery disease(CAD). In this study, the area ratio of positive and negative magnetic induction extracted from an extrema circle in the magnetocardiogram was analyzed at specific time points in the cardiac cycle: P maximum, R peak, J point, T onset, T peak and T end. The area of the positive proportion of the magnetic field relative to the total area within a circle encompassing the field extrema was determined and proposed for fast-speed CAD diagnosis. MCG was performed with a 61-channel biomagnetometer in a shielded environment in 38 healthy subjects and 15 CAD patients. A notable difference in area ratio was found between healthy and CAD subjects at the peak time of T wave: 0.416 ± 0.090 versus0.465 ± 0.065(p = 0.013). Using a cutoff value of 0.4506resulted in a sensitivity and specificity of 86.7 % and 73.8 %,respectively. This approach may enable a fast-speed CAD diagnosis in a clinical setting.

关键词：冠心病诊断通道冠状动脉疾病 CAD 心动周期峰值时间面积率

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Sparse current source reconstruction in MCG

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Science Bulletin 2015年第14期60卷 1235-1240页

作者： Mengpei Chen Shiqin Jiang Lu Bing Chen Zhao Birgit Hailer dietrich Gr nemeyer peter Van Leeuwen School of Electronics and Information Engineering Tongji University Department of Internal Medicine Philippusstift University Witten/Herdecke Faculty of Health Gro¨ nemeyer Institute for MicrotherapyUniversity Witten/Herdecke

Cardiac current source reconstruction is investigated by a fast greedy sparse(FGS) method applied to simulated and real magnetocardiography(MCG) data measured using 61-channel superconducting quantum interference device. The approach reduces the size of the lead field matrix based on a priori knowledge of dipolar magnetic field map. Consequently, the computational demands and the accuracy of sparse source reconstruction are improved simultaneously. The simulation results demonstrate that the FGS method is capable of reconstructing sparse equivalent current sources using the magnetic field data generated by a single current source with varying orientation or multiple current sources generated randomly. In addition, we analyze the cardiac current source reconstructed with real MCG data at typical instants and discuss the electrical excitation conduction during the QRS complex based on moving sparse source imaging.

关键词：稀疏流超导量子干涉器件计算精度电流源先验知识仿真结果 GS方法随机生成

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