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Transactions of Nonferrous Metals Society of China 2014年第7期24卷 2157-2167页

作者： Ahmad FALAHATI Jun WU peter lang Mohammad Reza AHMADI Erwin POVODEN-KARADENIZ Ernst KOZESCHNIK Institute of Materials Science and Technology Vienna University of Technology Materials Center Leoben Forschung GmbH Christian Doppler Laboratory for Early Stages of Precipitation Institute of Materials Science and TechnologyVienna University of Technology

Differential scanning calorimetry （DSC） has been used extensively to study different solid state reactions. The signals measured in DSC are associated with the growth and dissolution of different precipitates during a specific heat cycle. The time-temperature dependence of heat cycles and the corresponding heat flow evolution measured in the sample by DSC provide valuable experimental information about the phase evolution and the precipitation kinetics in the material. The thermo-kinetic computer simulation was used to predict the DSC signals of samples taken from 6xxx and 2xxx alloys. In the model, the evolution of different metastable and stable phases and the role and influence of excess quenched-in vacancies in the early stage of precipitation were taken into account. Transmission electron microscopy （TEM） and high-resolution TEM were used to verify the existence of precipitates, their size and number density at specific points of the DSC curves.

关键词： differential scanning calorimetry aluminum alloys precipitation kinetics simulation vacancy MatCalc

Microvascular invasion of hepatocellular carcinoma predicts microvascular invasion of its recurrence: potential implications for salvage liver transplantation?

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Hepatobiliary Surgery and Nutrition 2023年第2期12卷 183-191页

作者： Stefan Heinrich Jens Mittler Juliane Theurer Dirk ARidder Jens UMarquardt Arndt Weinmann Uwe Scheuermann Gerd Otto peter RGalle Beate KStraub Hauke lang General Visceral and Transplantation SurgeryUniversity Hospital of MainzMainzGermany Institute of Pathology University Hospital of MainzMainzGermany Department of Medicine I University Medical Center Schleswig-HolsteinCampus LübeckGermany Department of Medicine I University Hospital of MainzMainzGermany Visceral TransplantationThoracic and Vascular SurgeryUniversity Hospital LeipzigLeipzigGermany

Background:Microvascular invasion(MVI)can only be assessed on a full surgical *** aimed at evaluating,whether the histology of the primary tumor is predictive of MVI in a hepatocellular carcinoma(HCC)***:Patients,who underwent liver resection or orthotopic liver transplantation(OLT)for recurrent HCC from January 2001 until June 2018 were eligible for this retrospective *** specimens were evaluated for HCC subtype/morphology,vessels encapsulating tumor clusters(VETC)-pattern and *** parameters were analyzed using χ^(2)-test andϕ-values,with P values<0.05 being considered ***:Of 230 HCC recurrences,37(16.1%)underwent repeated liver resection(n=22)or OLT(n=15).Of these,67.6%initially exceeded the Milan *** correlated Milan criteria(P=0.005),tumor size(P=0.015)and VETC-pattern(P=0.034)in the primary *** recurrences shared many features of the primary HCC such as tumor grade(P=0.002),VETC-pattern(P=0.035),and MVI(P=0.046).In recurrences,however,only the concordance with the Milan criteria correlated with MVI(P=0.018).No patient without MVI in the primary HCC revealed MVI on early recurrence(<2 years)(P=0.035).Conclusions:HCC recurrences share many biological features of the primary ***,early recurrences of MVI-negative HCC never revealed *** finding offers novel concepts,e.g.,patient selection for salvage OLT.

关键词： Microvascular invasion(MVI) resection selection vessels encapsulating tumor clusters(VETC) angioinvasion salvage transplantation

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甲硝唑棒在深牙周袋病损治疗中的作用

口腔医学纵横 2001年第3期17卷 220-222页

作者：欧阳翔英 Andrea Mombelli niklaus lang 北京大学口腔医学院北京100081 瑞士伯尔尼大学

目的 :评价牙康 (甲硝唑棒 )治疗深牙周袋的作用。方法 :牙康 +刮治治疗 7名牙周炎患者的 7个深牙周袋位点 ,单纯刮治另 7个位点为对照。治疗后 7天、2 8天观察龈下微生物变化及临床疗效。结果 :牙康治疗后龈下总细菌数及能动菌、梭形... 详细信息

目的 :评价牙康 (甲硝唑棒 )治疗深牙周袋的作用。方法 :牙康 +刮治治疗 7名牙周炎患者的 7个深牙周袋位点 ,单纯刮治另 7个位点为对照。治疗后 7天、2 8天观察龈下微生物变化及临床疗效。结果 :牙康治疗后龈下总细菌数及能动菌、梭形杆菌、螺旋体百分比显著降低 ,7天时显著低于对照 ,配合刮治 2 8天时探深显著低于治疗前 ;而单纯刮治后探深无显著降低。结论 :牙康 +刮治治疗深牙周袋 ,能快而有效地抑制龈下致病微生物 ,临床效果更佳。

关键词：牙周炎甲硝唑龈下微生物治疗

On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems—a study from SE China

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Journal of Plant Ecology 2017年第1期10卷 111-127页

作者： Thomas Scholten Philipp Goebes peter Kühn Steffen Seitz Thorsten Assmann Jürgen Bauhus Helge Bruelheide Francois Buscot Alexandra Erfmeier Markus Fischer Werner Härdtle Jin-Sheng He Keping Ma Pascal A.niklaus Michael Scherer-Lorenzen Bernhard Schmid Xuezheng Shi Zhengshan Song Goddert von Oheimb Christian Wirth Tesfaye Wubet Karsten Schmidt Department of Geosciences Soil Science and GeomorphologyUniversity of TübingenRümelinstraße 19-2372070 TübingenGermany Institute of Ecology Leuphana University LüneburgScharnhorststr.121335 LüneburgGermany Faculty of Forest and Environmental Sciences SilvicultureUniversity of FreiburgTennenbacherstraße 479085 Freiburg im BreisgauGermany Institute of Biology/Geobotany and Botanical Garden Martin Luther University Halle WittenbergAm Kirchtor 106108 HalleGermany German Centre for Integrative Biodiversity Research(iDiv)Halle-Jena-Leipzig Deutscher Platz 5e04103 LeipzigGermany Helmholtz Centre for Environmental Research UFZ Theodor-Lieser-Straße 406120 HalleGermany Department of Plant Sciences University of BernAltenbergrain 213013 BernSwitzerland Peking University No.5 Yiheyuan RoadHaidian DistrictBeijing 100871China Institute of Botany Chinese Academy of SciencesNo.20 NanxincunXiangshanBeijing 100093China Institute of Evolutionary Biology and Environmental Studies University of ZürichWinterthurerstrasse 1908057 ZürichSwitzerland Faculty of Biology Department of GeobotanyUniversity of FreiburgSchänzlestraße 179104 FreiburgGermany Institute of Soil Science Chinese Academy of SciencesNo.71 East Beijing RoadNanjingChina TU Dresden Biodiversity and Nature ConservationPienner Straße 701737 TharandtGermany Department of Systematic Botany and Functional Biodiversity University of LeipzigJohannisallee 2104103 LeipzigGermany

Aims The aim of our research was to understand small-scale effects of topography and soil fertility on tree growth in a forest biodiversity and ecosystem functioning(BEF)experiment in subtropical SE *** Geomorphometric terrain analyses were carried out at a spatial resolution of 5×5 *** samples of different depth increments and data on tree height were collected from a total of 566 plots(667 m2 each).The soils were analyzed for carbon(soil organic carbon[SOC]),nitrogen,acidity,cation exchange capacity(CEC),exchangeable cations and base saturation as soil fertility *** plots were classified into geomorphological *** of variance and linear regressions were applied to all terrain,soil fertility and tree growth *** Findings In general,young and shallow soils and relatively small differences in stable soil properties suggest that soil erosion has truncated the soils to a large extent over the whole area of the *** explains the concurrently increasing CEC and SOC stocks downslope,in hollows and in ***,colluvial,carbon-rich sediments are missing widely due to the convexity of the footslopes caused by uplift and removal of eroded sediments by adjacent *** results showed that soil fertility is mainly influenced by ***-Carlo flow accumulation(MCCA),curvature,slope and aspect significantly affected soil ***,soil fertility was affected by the different geomorphological positions on the experimental sites with ridge and spur positions showing lower exchangeable base cation contents,especially potassium(K),due to *** geomorphological effect of soil fertility is most pronounced in the topsoil and decreases when considering the subsoil down to 50 cm *** soil fertility attributes affect tree height after 1-2 years of growth,among which C stocks proved to be most important while pH_(KCl)and CEC only played minor ***,soil acidity and a hig

关键词： soil fertility topography soil erosion matter transport biodiversity DSM carbon stocks tree forest BEF-China China

Sugar concentration influences decision making in Apis mellifera *** during early-stage honey storage behaviour

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Open Journal of Animal Sciences 2013年第3期3卷 210-218页

作者： Mark K.Greco Johann lang peter Gallmann Nicholas Priest Edward Feil Karl Crailsheim Department of Biology and Biochemistry University of BathBathUK INVERT Group Department of Electrical and Electronic EngineeringUniversity of BathBathUK Department für Klinische Veterinarmedizin Vetsuisse-FakultatUniversitat BernBernSwitzerland Swiss Bee Research Institute Agroscope Liebefeld-Posieux Research Station(ALP)BernSwitzerland Institute for Zoology at the Karl-Franzens-Universitat Graz Austria

Decision making in honeybees is based on information which is acquired and processed in order to make choices between two or more alternatives. These choices lead to the expression of optimal behaviour strategies such as floral constancy. Optimal foraging strategies such as floral constancy improve a colony’s chances of survival, however to our knowledge, there has been no research on decision making based on optimal storage strategies. Here we show, using diagnostic radioentomology, that decision making in storer bees is influenced by nectar sugar concentrations and that, within 48 hours of collection, honeybees workers store carbohydrates in groups of cells with similar sugar concentrations in a nonrandom way. This behaviour, as evidenced by patchy spatial cell distributions, would help to hasten the ripening process by reducing the distance between cells of similar sugar concentrations. Thus, colonies which exhibit optimal storage strategies such as these would have an evolutionary advantage and im- prove colony survival expectations over less efficient colonies and it should be plausible to select colonies that exhibit these preferred traits.

关键词： Honey Floral Constancy Nectar Foraging Behaviour Decision Making

Wafer-level hermetically sealed silicon photonic MEMS

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Photonics Research 2022年第2期10卷 I0001-I0008页

作者： Gaehun Jo Pierre Edinger Simon J.Bleiker Xiacxjing Wang Alain Yuji Takabayashi Hamed Sattari Niels Quack Moises Jezzini Jun Su Lee peter Verheyen Iman Zand Umar Khan Wim Bogaerts Göran Stemme Kristinn B.Gylfason Frank niklaus Division of Micro and Nanosystems KTH Royal Institute of Technology11428 StockholmSweden École Polytechnique Federate de Lausanne(EPFL) 1015 LausanneSwitzerland Tyndall National Institute Lee Maltings Complex Dyke ParadeT12 R5CP CorkIreland imec vzw.3DSIP Department Si Photonics GroupKapeldreef 753001 LeuvenBelgium Department of Information Technology Photonics Research GroupGhent University-IMEC9052 GentBelgium

The emerging fields of silicon(Si) photonic micro–electromechanical systems(MEMS) and optomechanics enable a wide range of novel high-performance photonic devices with ultra-low power consumption, such as integrated optical MEMS phase shifters, tunable couplers, switches, and optomechanical resonators. In contrast to conventional SiO;-clad Si photonics, photonic MEMS and optomechanics have suspended and movable parts that need to be protected from environmental influence and contamination during operation. Wafer-level hermetic sealing can be a cost-efficient solution, but Si photonic MEMS that are hermetically sealed inside cavities with optical and electrical feedthroughs have not been demonstrated to date, to our knowledge. Here, we demonstrate wafer-level vacuum sealing of Si photonic MEMS inside cavities with ultra-thin caps featuring optical and electrical feedthroughs that connect the photonic MEMS on the inside to optical grating couplers and electrical bond pads on the outside. We used Si photonic MEMS devices built on foundry wafers from the iSiPP50G Si photonics platform of IMEC, Belgium. Vacuum confinement inside the sealed cavities was confirmed by an observed increase of the cutoff frequency of the electro-mechanical response of the encapsulated photonic MEMS phase shifters, due to reduction of air damping. The sealing caps are extremely thin, have a small footprint, and are compatible with subsequent flip-chip bonding onto interposers or printed circuit boards. Thus, our approach for sealing of integrated Si photonic MEMS clears a significant hurdle for their application in high-performance Si photonic circuits.

关键词： sealed sealing bonding

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德国铁路摆式列车的倾摆技术及其运用经验

国外内燃机车 2003年第6期 37-43,46页

作者： Hans peter lang 吴雅丽德

摆式列车是铁路运输的一种生产资料。它在运用和维护中的可靠性和经济性 ,是其长期有效运用的决定性的前提。本文从这些边界条件出发 ,结合实际运用经验 ,介绍了对摆式动车的主要要求 ,阐述了动车快速通过曲线时对铁路轨道及可靠性技术... 详细信息

摆式列车是铁路运输的一种生产资料。它在运用和维护中的可靠性和经济性 ,是其长期有效运用的决定性的前提。本文从这些边界条件出发 ,结合实际运用经验 ,介绍了对摆式动车的主要要求 ,阐述了动车快速通过曲线时对铁路轨道及可靠性技术的要求 ;同时 ,结合德国铁路在倾摆技术方面进一步发展的趋势。

关键词：内燃动车摆式列车倾摆装置可靠性经济性发展趋势

Liver transplantation in malignant disease

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World Journal of Clinical Oncology 2021年第8期12卷 623-645页

作者： Sven Arke lang Jan Bednarsch Zoltan Czigany Katharina Joechle Andreas Kroh Iakovos Amygdalos Pavel Strnad Tony Bruns Daniel Heise Florian Ulmer Ulf peter Neumann Department of Surgery and Transplantation University Hospital RWTH AachenAachen 52074Germany Department of Internal Medicine III University Hospital RWTH AachenAachen 52074Germany

Liver transplantation for malignant disease has gained increasing attention as part of transplant *** the implementation of the Milan criteria,hepatocellular carcinoma(HCC)was the first generally accepted indication for transplantation in patients with ***,more liberal criteria for HCC have been developed,and research on this topic is still *** evident success of liver transplantation for HCC has led to the attempt to extend its indication to other *** perihilar cholangiocarcinoma,more and more evidence supports the use of liver transplantation,especially after neoadjuvant *** addition,some data also show a benefit for selected patients with very early stage intrahepatic *** epithelioid hemangioendothelioma is a very rare but nonetheless established indication for liver transplantation in primary liver *** contrast,patients with hepatic angiosarcoma are currently not considered to be optimal *** secondary liver tumors,neuroendocrine cancer liver metastases are an accepted but comparability rare indication for liver ***,some evidence has been published supporting the use of liver transplantation even for colorectal liver *** review summarizes the current evidence for liver transplantation for primary and secondary liver cancer.

关键词： Liver transplantation Hepatocellular carcinoma Cholangiocellular carcinoma Hepatic epithelioid hemangioendothelioma Undifferentiated embryonal sarcoma of the liver Colorectal cancer liver metastases Neuroendocrine cancer liver metastases

Bonding, Structure and Uses of Metals

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Journal of Metallic Material Research 2023年第1期6卷 7-15页

作者： peter F.lang Birkbeck College(University of London) Malet StreetLondonUK

This work briefly describes some of the different features of groups of *** highlights recent progress in research into *** details the structures and defects in solid *** common theories of metals including the free electron theory,band theory,the ions in a sea of electrons model and the soft sphere model are discussed and their merits are *** describes distinctions between the bonding in metals and inter-metallic *** shows the influence of bonding on the properties of metals and alloys and provides a summary of tradition and newer uses of metals.

关键词： Metals Alloys Inter-metallic compounds Bonding strucuture

Integrated silicon ohotonic MEMS

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Microsystems & Nanoengineering 2023年第2期9卷 227-248页

作者： Niels Quack Alain Yuji Takabayashi Hamed Sttari Pieirre Edinger Gaehun Jo Simon JBleker Carlos Errando-Herranz Kristinn BGylfason Frank niklaus Umar Khan peter Verheyen Arun Kumar Malik Jun Su Lee Moises Jezzini Padraic Morrissey Cleitus Antony peter O'Brien Wim Bogaertso Ecole Polytechnique Federale de Lausanne(EPFL) 1015 LausanneSwitzerland school of Aerospace Mechanical and Mechatronic EngineeringThe University of SydneyCamperdownNSW 2006Australia swiss Center for Electronics and Microtechnology(CSEM) 2002 NeuchatelSwitzerland Division of Micro and Nanosystems KTH Royal Institute of Technology11428 StockholmSweden Department of Information Technology Photonics Research GroupGhent University-IMECTechnologiepark-Zwijnaarde 1269052 GentBelgium imec vzw.3DSIP Department Si Photonics GroupKapeldreef 753001 LeuvenBelgium Tyndall National Institute Lee Maltings Complex Dyke ParadeCork T12 R5CPIreland

Silicon photonics has emerged as a mature technology that is expected to play a key role in critical emerging applications,including very high data rate optical communications,distance sensing for autonomous vehicles,photonic-accelerated computing,and quantum information *** success of silicon photonics has been enabled by the unique combination of performance,high yield,and high-volume capacity that can only be achieved by standardizing manufacturing ***,standardized silicon photonics technology platforms implemented by foundries provide access to optimized library components,including low-loss optical routing,fast modulation,continuous tuning,high-speed germanium photodiodes,and high-effciency optical and electrical ***,silicon's relatively weak electro-optic effects result in modulators with a significant footprint and thermo-optic tuning devices that require high power consumption,which are substantial impediments for very large-scale integration in silicon *** systems(MEMS)technology can enhance silicon photonics with building blocks that are compact,low-loss,broadband,fast and require very low power ***,we introduce a silicon photonic MEMS platform consisting of high-performance nano-opto-electromechanical devices fully integrated alongside standard silicon photonics foundry components,with wafer-level sealing for long-term reliability,flip-chip bonding to redistribution interposers,and fibre-array attachment for high port count optical and electrical *** experimental demonstration of fundamental silicon photonic MEMS circuit elements,including power couplers,phase shifters and wavelength-division multiplexing devices using standardized technology lifts previous impediments to enable scaling to very large photonic integrated circuits for applications in telecommunications,neuromorphic computing,sensing,programmable photonics,and quantum computing.

关键词： tuning sealing photonics