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Metamorphic Evolution of Chloritoid-Bearing Micaschist from the Variscan Elstergebirge: Evidences for Stacking of High-Pressure Rocks in the Saxothuringian Zone of Central Europe

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Journal of Earth Science 2020年第3期31卷 425-446页

作者： Gelareh Rahimi hans-Joachim Massonne Fakultat Chemie Universitat Stuttgart70569 StuttgartGermany School of Earth Sciences China University of GeosciencesWuhan 430074China

A chloritoid-garnet-bearing micaschist from the southern part of the Elstergebirge was studied to better understand the Variscan orogenic evolution in the Saxothuringian zone of the northwestern Bohemian *** on the textural relations and compositions of minerals,especially of zoned garnet and potassic white mica,a P-T path was reconstructed using contoured P-T *** U-Th-Pb dating of monazite in the micaschist was undertaken with the electron *** micaschist experienced P-T conditions along a clockwise path between 16 kbar at 510℃and 5 kbar at 555℃followed by isobaric heating to about 600℃.Monazite ages range between 315 and 480 Ma with the most prominent maxima and side maxima at 346.0±1.1(2σ),357.3±2.3,and 368.3±1.7 *** older than 380 Ma were related to detrital monazite pointing to a Devonian sedimentary *** ages around 325 Ma were assigned to the isobaric heating by nearby post-tectonic *** high-pressure event,being the result of the collision of Laurussia and Gondwana after closure of the Rheic Ocean,occurred in the Late *** exhumation to 15-20 km(5 kbar)ended probably in the Early *** high-pressure micaschists from the Fichtelgebirge to the Erzgebirge crystalline complexes are suggested to represent a single nappe within a metamorphic nappe *** nappe is composed of metasedimentary slices,which experienced different peak pressures rather than representing a coherent crustal section.

关键词： Saxothuringian micaschist chloritoid garnet monazite dating Variscan P-T path

Novel components for tunable micro-optics

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Optoelectronics Letters 2008年第2期4卷 86-88页

作者： hans Zappe Laboratory for Micro-optics Department of Microsystems Engineering-IMTEK University of Freiburg Georges-Kohler-Allee 102 79110 Freiburg Germany

We will present some technologies and devices employed for the fabrication of tunable micro-optics. Tunable liquid lenses and lens arrays as well as polymer membrane-based microlenses and scanning mirrors are of both ... 详细信息

关键词：微光学纳米技术子源集成光学

The GIOME:Concept and current role in gastrointestinal tract studies

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World Journal of Gastroenterology 2007年第9期13卷 1333-1334页

作者： Gregersen, hans

The goal of the Physiome Project is to understand and describe the physiology and pathophysiology of the human organism. Multiscale mathematical and computer models are developed within this concept to help understand human health. From its beginning about 15 years ago, most of the focus has been in the cardiac field (the Cardiome project) but other areas are developing as well now.

关键词： Gastroenterology

Identification of two ABCC transporters involved in malathion detoxification in the red flour beetle,Tribolium castaneum

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Insect Science 2022年第4期29卷 1096-1104页

作者： Janin Rösner hans Merzendorfer Department of Chemistry-Biology Institute of BiologyUniversity of SiegenSiegenGermany

ABC transporters have been suggested to be involved in insecticide detoxification in different insect species mainly based on the indirect observation of transcriptional upregulation of ABC gene expression in response to insecticide *** studies performed by us and others in the red flour beetle,Tribolium castaneum,have analyzed the function of TcABCA-C and TcABCG-H genes using RNA interference(RNAi)and demonstrated that specific TcABCA and TcABCC genes are involved in the elimination of the pyrethroid tefluthrin and the benzoylurea diflubenzuron,because gene silencing increased the beetle's susceptibility to the *** this study,we focused on the potential functions of TcABCA-C genes in detoxification of the pyrethroid cyfluthrin(CF),the organophosphate malathion(MAL)and the diacylhdyazine tebufenozide(TBF).Analysis of transcript levels of selected TcABCA-C genes in response to treatment with these three chemically unrelated insecticides revealed that some genes were particularly upregulated after insecticide *** addition,the ABC inhibitor verapamil synergized significantly the toxicity of MAL but only negligibly CF and TBF ***,silencing of two TcABCC genes by RNAi revealed a significant increase in susceptibility to *** contrast,we did not observe a significant increase in insecticide-induced mortalities when knocking down TcABC genes in larvae treated with CF or TBF,although they were upregulated in response to insecticide *** results suggest that two pleiotropic ABCC transporters expressed in metabolic and excretory tissues contribute to the elimination of MAL.

关键词： ATP-binding assette transporters(ABC transporter) B-cy fluthrin insecti-cide deoxification malathion tebufenozide Tribolium castaneum

Relationship between oxygen concentration, respiration and filtration rate in blue mussel Mytilus edulis

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Journal of Oceanology and Limnology 2018年第2期36卷 395-404页

作者： TANG Baojun hans Ulrik RIISGARD Marine Biological Research Centre University of Southern Denmark Hindsholmvej 11 DK-5300 Kerteminde Denmark East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Shanghai 200090 China

The large water-pumping and particle-capturing gills of the filter-feeding blue mussel Mytilus edulis are oversized for respiratory purposes. Consequently, the oxygen uptake rate of the mussel has been suggested to be rather insensitive to decreasing oxygen concentrations in the ambient water, since the diffusion rate of oxygen from water flowing through the mussel determines oxygen uptake. We tested this hypothesis by measuring the oxygen uptake in mussels exposed to various oxygen concentrations. These concentrations were established via N2-bubbling of the water in a respiration chamber with mussels fed algal cells to stimulate fully opening of the valves. It was found that mussels exposecl to oxygen concentrations decreasing from 9 to 2 mg O2/L resulted in a slow but significant reduction in the respiration rate, while the filtration rate remained high and constant. Thus, a decrease of oxygen concentration by 78% only resulted in a 25% decrease in respiration rate. However, at oxygen concentrations below 2 mg O2/L M. edulis responded by gradually closing its valves, resulting in a rapid decrease of filtration rate, concurrent with a rapid reduction of respiration rate. These observations indicated that M. edulis is no longer able to maintain its normal aerobic metabolism at oxygen concentration below 2 mg O2/L, and there seems to be an energy-saving mechanism in bivalve molluscs to strongly reduce their activity when exposed to low oxygen conditions.

关键词： Mytilus edulis filtration rate respiration rate oxygen concentration valve-opening degree

Prediction of and for new environments: What's your model?

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Molecular Plant 2022年第4期15卷 581-582页

作者： hans-Peter Piepho University of Hohenheim Institute of Crop ScienceBiostatistics UnitFruwirthstrasse 2370599 StuttgartGermany

Genomic prediction(GP)and genome-wide association studies(GWAS)employ genetic variants(markers)to predict phenotypic performance and identify superior *** plants,due to genotype-environment interaction(GEI),performance is usually assessed across multiple environments,giving rise to phenotypic data matrices with genotypes in rows and environments in columns(Figure 1).The standard approaches to GP and GWAS employ genotype(row)means across environments as a response and analysis focuses on the *** et al.,2022 proposed to apply the same idea using environment(column)means across genotypes as the response and scanning environmental variants for their ability to predict environmental performance.

关键词： environments Figure performance

Industrial Experience with Case Hardening of Stainless Steels by Solution Nitriding

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材料热处理学报 2004年第5期25卷 354-359页

作者： hans Berns Bernd Edenhofer Roland Zaugg Ruhr University Materials Technology D-44780 Bochum GermanyIPSEN Industries International GmbH D-47514 Kleve GermanyHdrterei GersterA.G. CH-4622 Egerkingen Switzerland

SolNit(R) is a novel heat treatment to case harden stainless steels with nitrogen instead of carbon. The calculated equilibrium pressure of N2 corresponds well with the nitrogen content in the steel surface. The process is carried out in vacuum furnaces with pressurized gas quenching. Numerous parts of different stainless steels have been successfully SolNit(R) treated in industry leading to superior properties in respect to hardness/strength and corrosion

关键词：不锈钢渗氮表面硬化热处理

Recycling of automotive aluminum

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Transactions of Nonferrous Metals Society of China 2010年第11期20卷 2057-2063页

作者： Jirang CUI hans J.ROVEN Department of Materials Science and Engineering Norwegian University of Science and Technology(NTNU)

With the global warming of concern,the secondary aluminum stream is becoming an even more important component of aluminum production and is attractive because of its economic and environmental *** this work,recycling of automotive aluminum is reviewed to highlight environmental benefits of aluminum recycling,use of aluminum alloys in automotive applications,automotive recycling process,and new technologies in aluminum scrap *** survey shows that newly developed techniques such as laser induced breakdown spectroscopy(LIBS) and solid state recycling provide promising alternatives in aluminum scrap *** with conventional remelting and subsequent refinement,solid state recycling utilizing compression and extrusion at room or moderate temperature can result in significant energy savings and higher metal yield.

关键词： recycling automotive aluminum sorting mechanical separation solid state recycling

Hepatitis C virus core antigen testing: Role in diagnosis, disease monitoring and treatment

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World Journal of Gastroenterology 2014年第22期20卷 6701-6706页

作者： hans L Tillmann GI/Hepatology Duke Clinical Research Institute and Duke UniversityDurhamNC 27708United States

While hepatitis B virus(HBV)screening relies on hepatitis B surface antigen to confirm HBV infection since the early days of hepatitis B disease management,hepatitis C virus(HCV)infection screening is based on anti-HCV testing which does not discriminate active from past *** to confirm infection HCV RNA testing has been required;recently a HCV core antigen assay became widely commercially available which could serve to confirm *** assay is less sensitive than current HCV RNA assays,but as more than 50%of anti-HCV positive persons will be HCV core antigen positive,HCV core antigen testing can be a cost effective and reflex test to confirm HCV infection in anti-HCV positive individuals and will be easier as it can be applied on the same *** treatment monitoring,more data need to be generated,but the early data available at present suggest that HCV core antigen may be an alternative to HCV RNA *** direct antivirals,HCV core antigen could even be superior to HCV RNA testing,as direct antivirals might already prevent virus formation when HCV core antigen is still produced and thereby correlates better with eventual viral clearance.

关键词： Hepatitis C virus Hepatitis C Diagnostic assay Diagnostic accuracy Hepatitis C virus core antigen Treatment monitoring