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Evidence for Magnetic Fractional Excitations in a Kitaev Quantum-Spin-Liquid Candidate α-RuCl_(3)

Chinese Physics Letters 2022年第2期39卷 72-77页

作者： Kejing Ran Jinghui Wang Song Bao Zhengwei Cai Yanyan Shangguan Zhen Ma Wei Wang Zhao-Yang Dong P.Cermak A.Schneidewind Siqin Meng Zhilun Lu Shun-Li Yu Jian-Xin Li Jinsheng Wen School of Physical Science and Technology and ShanghaiTech Laboratory for Topological PhysicsShanghaiTech UniversityShanghai 200031China National Laboratory of Solid State Microstructures and Department of Physics Nanjing UniversityNanjing 210093China Institute for Advanced Materials Hubei Normal UniversityHuangshi 435002China School of Science Nanjing University of Posts and TelecommunicationsNanjing 210023China Department of Applied Physics Nanjing University of Science and TechnologyNanjing 210094China Julich Centre for Neutron Science(JCNS)at Heinz Maier-Leibnitz Zentrum(MLZ) Forschungszentrum Jülich GmbHLichtenbergstr.185748 GarchingGermany Charles University Faculty of Mathematics and PhysicsDepartment of Condensed Matter PhysicsKe Karlovu 512116PrahaCzech Republic Helmholtz-Zentrum berlin fur Materialien und Energie gmbh Hahn-Meitner-Platz 1D-14109BerlinGermany China Institute of Atomic Energy(CIAE) Beijing 102413China The Henry Royce Institute and Department of Materials Science and Engineering The University of SheffieldSir Robert Hadfield BuildingSheffieldS13JDUnited Kingdom Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

It is known that α-RuCl_(3) has been studied extensively because of its proximity to the Kitaev quantum-spin-liquid(QSL)phase and the possibility of approaching it by tuning the competing *** we present the first polarized inelastic neutron scattering study on α-RuCl_(3) single crystals to explore the scattering continuum around the Γ point at the Brillouin zone center,which was hypothesized to be resulting from the Kitaev QSL state but without concrete *** polarization analyses,we find that,while the spin-wave excitations around the Γ point vanish above the transition temperature T_(N),the pure magnetic continuous excitations around the Γ point are robust against ***,by calculating the dynamical spin-spin correlation function using the cluster perturbation theory,we derive magnetic dispersion spectra based on the K-Γ model,which involves with a ferromagnetic Kitaev interaction of −7.2 meV and an off-diagonal interaction of 5.6 *** find this model can reproduce not only the spin-wave excitation spectra around the Γ point,but also the non-spin-wave continuous magnetic excitations around the Γ *** results provide evidence for the existence of fractional excitations around the Γ point originating from the Kitaev QSL state,and further support the validity of the K-Γ model as the effective minimal spin model to describe α-RuCl_(3).

关键词： temperature excitation diagonal

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A harmonised European driver's desk for cross-border traffic

A harmonised European driver's desk for cross-border traffic

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第十七届国际工效学大会暨中国人类工效学会成立20周年庆祝大会

作者： Manfred Rentzsch Denis Miglianico Didier Georget Thomas Meissner IAS Institut für Arbeits-und Sozialhygiene Stiftung Allee der Kosmonauten 47 12681 BerlinGermany Alstom Transport 11-13 avenue de Bel Air69627 Villeurbanne CedexFrance SNCF Direction de la Traction-TMS46 Rue St Lazare75009 ParisFrance FAV TSB Innovationsagentur Berlin GmbH Forschungs-und Anwendungsverbund Verkehrssystemtechnik(FAV) Berlin Fasanenstr.8510623 Berlin

As part of the EU;funded research project MODTRAIN,system integrators and suppliers(***,Bombardier,Siemens),railway operators(DB,SNCF,TI,UIC) as well as various railway research centres and universities worked together at "Innovative Modular Concepts for an Integrated European Railway System".The aim of subproject EUCAB was to facilitate cross border railway traffic with a harmonised,modular and ergonomic design of the driver’s cab with the main focus on the essential elements of the driver’s *** on substantial analysis concerning existing driver’s cabs and desks design guidelines were developed and finally realised in a design mock-up(scale 1:1).This mock-up was assessed by engine drivers and *** of these "mock-up tests" led to change *** on these requests and on new operator requirements the desk was *** adapted driver’s desk was tested in three test phases(2 layouts for locomotives and one layout for EMU) at the railway simulator "SIMUFER" in Lille,*** tests were performed all together by 51 test *** test persons were engine drivers,mainly experienced,from 11 different European *** test phase lasted approximately 1 *** test duration for each test person was 1 *** engine drivers had to drive in several scenarios with different tasks and partly with unexpected *** each of the scenarios the driver was surveyed by means of a *** main focus for the assessment comprised controls used most frequently during this scenario as well as complex tasks that had to be performed in this *** the end of the test day the engine drivers had to complete a comprehensive final questionnaire with the aim of summarising and recording the impressions received during the *** data concerning the strain of the engine drivers was collected twice during the test day(at the beginning and at the end).The aim of the tests was to find critical points in terms of ergonomic

关键词： MODTRAIN harmonisation driver’s desk man-machine-interaction simulator tests

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Smartline—开发和使用高压液相色谱（HPLC）的最聪明手段

Smartline—开发和使用高压液相色谱（HPLC）的最聪明手段

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第六届化学工程与生物技术展览暨会议

作者： Dr.Christian Schmidt 林仙钦 Knauer gmbh Hegauer Weg 3814163 Berlin

＜正＞ Smartline,KNAUER推出的一条完全新颖的产品线,这一产品线是30多年开发HPLC仪表的经验与采用最新现代技术相结合的产物。通过Smartline的构思,用户的许多建议和要求被吸纳。模型的设计和KNAUER仪表的特性,使您能够建立特别紧凑

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通过麦汁分级煮沸来提升酒花的利用率

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中外酒业 2019年第3期 50-64页

作者：王成(译) Nele Bastgen Tobias Becher Klaus Wasmuht 中国食品发酵工业研究院 Ziemann Holvrieka gmbh 71636 LudwigsburgGermany Technical University of berlin 10623 BerlinGermany

我们首次开发了含有四个转盘过滤器(模块1到4)的连续麦汁过滤系统,这是第一次利用麦汁自身的物理和化学特性进行分级过滤。这不仅节省了30%的糖化时间,而且还提高了原料的利用率,特别是酒花及其将α-酸转化为异-α-酸(异构化)的转化率... 详细信息

我们首次开发了含有四个转盘过滤器(模块1到4)的连续麦汁过滤系统,这是第一次利用麦汁自身的物理和化学特性进行分级过滤。这不仅节省了30%的糖化时间,而且还提高了原料的利用率,特别是酒花及其将α-酸转化为异-α-酸(异构化)的转化率方面。在实验室规模(5L)进行了一系列实验。对各模块生产的麦汁与传统的麦汁过滤槽方法进行了对比,结果表明模块3和模块4生产的麦汁可以提高酒花异构化速率。这是由pH值、原浓以及其他潜在的影响因素造成的。与传统的麦汁制备方法相比,新方法的麦汁(模块3和模块4)酒花的异构化率平均高出85%。

关键词：酒花 α酸异-α-酸麦汁分级异构化连续糖化醪过滤

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Comparison of Protein Expression Profiles of Novel Halomonas smyrnensisAAD6Tand Halomonas salinaDSMZ 5928T

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Natural Science 2014年第9期6卷 628-640页

作者： Aydan Salman Dilgimen Kazim Yalcin Arga Volker A. Erdmann Brigitte Wittmann-Liebold Aziz Akin Denizci Dilek Kazan Bioengineering Department Faculty of Engineering Marmara University (Goztepe Campus) Istanbul Turkey Bioengineering Department Faculty of Engineering Marmara University (Goztepe Campus) Istanbul Turkey Institute for Chemistry/Biochemistry Freie University Berlin Germany Present Address: Department of Biochemistry & Molecular Biology University of Calgary Calgary Canada Institute for Chemistry/Biochemistry Freie University Berlin Germany The Scientific and Technological Research Council of Turkey (TUBITAK) Marmara Research Center (MAM) Genetic Engineering and Biotechnology Institute Gebze Turkey Wita gmbh Berlin Germany

In this work, the protein pattern of novel Halomonas smyrnensis AAD6T was compared to that of Halomonas salina DSMZ5928T, which is the closest species on the basis of 16S rRNA sequence, to understand how AAD6T differs from type strains. Using high resolution NEPHEGE technique, the whole cell protein composition patterns of both Halomonas salina DSMZ5928T and H. smyrnensis AAD6T were mapped. The expressed proteins of the two microorganisms were mostly located at the acidic side of the gels, at molecular weight values of 60 to 17 kDa, and at isoelectric points 3.8 to 6.0, where they share a significant number of common protein spots. Identification and characterization of protein spots via whole genome sequencing data indicated that these two microorganisms used similar pathways, especially TCA cycle, for their survival;in other words, for their energy requirements. On the other hand, the protein expression differences in AAD6T and H. salina DSMZ 5928T showed that they prefer different metabolic pathways for lipid biosynthesis and in adaptation to extreme environments. Thus, we suggested that phylogenetic dissimilarities between these microorganisms could be related to the protein expression differences;in other words, metabolic flux differences in AAD6T and H. salina DSMZ 5928T. This is the first study to explain the dissimilarities of phenotypic characters and DNA-DNA hybridization between type strain and novel strain AAD6T by using protein expression differences.

关键词： Proteomics Halomonas salina DSMZ 5928T Halomonas smyrnensis AAD6T NEPHGE Technique Genome

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Identification of Early Nuclear Target Genes of Plastidial Redox Signals that Trigger the Long- Term Response of Arabidopsis to Light Quality Sh∽ts

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Molecular Plant 2015年第8期8卷 1237-1252页

作者： Lars Dietzel Christine Glaeer Monique Liebers Stefan Hiekel Florence Courtois Olaf Czarneckit Hagen Schlicke Yan Zubo Thomas Borner Klaus Mayer Bernhard Grimm Thomas Pfannschmidt Department of Plant Physiology Institute of General Botany and Plant Physiology Friedrich-Schiller-University of Jena Domburger Strasse 159 07743 JenaGermany MIPS/IBI Helmholtz Zentrum MGnchen German Research Center for Environmental Health (GmbH) Ingolst~dter Landstrasse 1 85764 Neuherberg Germany Institute of Biology/Plant Physiology Humboldt-University Berlin Philippstrasse 13 Building 12 10115 Berlin Germany Institute of Biology Genetics Humboldt-University Berlin Chausseestrasse 117 10115 Berlin Germany present address: Institut fer Molekulare Biowissenschaften Pflanzliche Zellphysiologie Max-von-Laue-Strasse 9 Biozentrum Goethe-Universit~t Frankfurt 60438Frankfurt am Main Germany Present address: Zentrum fur Molekulare Biologie an der Universitat zu Heidelberg (ZMBH) Im Neuenheimer Feld 282 69120 Heidelberg Germany present address: Universite Grenoble-Alpes F-38000 Grenoble France Present address: CNRS UMR5168 F-38054 Grenoble France present address: CEA iRTSV Laboratoire de Physiologie Cellulaire & Vgetale F-38054 Grenoble France Present address: INRA USC1359 F-38054 Grenoble France Present address: Plant Reproductive Biology Group Department of Physiology and Ceil-Biology Leibniz Institute of Rant Genetics and Crop Plant Research (IPK)OT Gatersleben Corrensstrasse 3 D-06466 Stadt Seeland Germany present address: KWS Saat AG Grimsehlstrasse 31 37555 Einbeck Germany present address: Dartmouth College Department of Biological Sciences Ufe Sciences Center 78 College Street Hanover NH 03755 USA

Natural illumination conditions are highly variable and because of their sessile life style, plants are forced to acclimate to them at the cellular and molecular level. Changes in light intensity or quality induce changes in the reduction/oxidation （redox） state of the photosynthetic electron chain that acts as a trigger for compen- satory acclimation responses comprising functional and structural adjustments of photosynthesis and metabolism. Such responses include redox-controlled changes in plant gene expression in the nucleus and organelles. Here we describe a strategy for the identification of early redox-regulated genes （ERGs） in the nucleus of the model organism Arabidopsis thaliana that respond significantly 30 or 60 min after the generation of a reduction signal in the photosynthetic electron transport chain. By comparing the response of wild-type plants with that of the acclimation mutant stn7, we could specifically identify ERGs. The results reveal a significant impact of chloroplast redox signals on distinct nuclear gene groups including genes for the mitochondrial electron transport chain, tetrapyrrole biosynthesis, carbohydrate metabolism, and signaling lipid synthesis. These expression profiles are clearly different from those observed in response to the reduction of photosynthetic electron transport by high light treatments. Thus, the ERGs identified are unique to redox imbalances in photosynthetic electron transport and were then used for analyzing potential redox-responsive cis-elements, trans-factors, and chromosomal regulatory hot spots. The data identify a novel redox-responsive element and indicate extensive redox control at transcriptional and chromosomal levels that point to an unprecedented impact of redox signals on epigenetic processes.

关键词： plastidial redox signaling,early redox-regulated gene Arabidopsis thaliana Molecular Plant

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古巴哈瓦那城市生活垃圾沼气发电工程技术分析

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中国科技成果 2009年第15期10卷 17-19页

作者：闫志英刘晓风 Tong Boitin 廖银章袁月祥中国科学院成都生物研究所四川成都610041 BEB BioEnergy berlin gmbh Berlin12555

本文从工艺流程、技术参数以及效益分析等方面对古巴哈瓦那城市生活垃圾沼气发电示范工程进行了技术分析。运行结果说明，利用城市生活垃圾进行沼气发电是切实可行的，该项目的成功为古巴城市生活垃圾治理，环境卫生的净化提供了一条有... 详细信息

本文从工艺流程、技术参数以及效益分析等方面对古巴哈瓦那城市生活垃圾沼气发电示范工程进行了技术分析。运行结果说明，利用城市生活垃圾进行沼气发电是切实可行的，该项目的成功为古巴城市生活垃圾治理，环境卫生的净化提供了一条有效途径。

关键词：生活垃圾沼气发电工艺流程 CSTR工艺

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Field-tuned quantum effects in a triangular-lattice Ising magnet

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Science Bulletin 2022年第1期67卷 38-44,M0003页

作者： Yayuan Qin Yao Shen Changle Liu Hongliang Wo Yonghao Gao Yu Feng Xiaowen Zhang Gaofeng Ding Yiqing Gu Qisi Wang Shoudong Shen Helen C.Walker Robert Bewley Jianhui Xu Martin Boehm Paul Steffens Seiko Ohira-Kawamura Naoki Murai Astrid Schneidewind Xin Tong Gang Chen Jun Zhao State Key Laboratory of Surface Physics and Department of Physics Fudan UniversityShanghai 200433China Condensed Matter Physics and Materials Science Department Brookhaven National LaboratoryUptonNew York 11973USA Shanghai Qizhi Institute Shanghai 200232China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China Materials and Life Science Division J-PARC CenterTokaiIbaraki 319-1195Japan Physik-Institut Universität ZürichZürich CH-8057Switzerland ISIS Facility Rutherford Appleton LaboratorySTFCChiltonDidcotOxon OX110QXUK Helmholtz-Zentrum berlin für Materialien und Energie gmbh Berlin D-14109Germany Institut Laue-Langevin Grenoble 9Cedex 38042France Jülich Centre for Neutron Science(JCNS)at Heinz Maier-Leibnitz Zentrum(MLZ) Forschungszentrum Jülich GmbHGarching 85748Germany Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong The University of Hong KongHong KongChina Institute of Nanoelectronics and Quantum Computing Fudan UniversityShanghai 200433China Shanghai Research Center for Quantum Sciences Shanghai 201315China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

We report thermodynamic and neutron scattering measurements of the triangular-lattice quantum Ising magnet TmMgGaO_(4)in longitudinal magnetic *** experiments reveal a quasi-plateau state induced by quantum *** state exhibits an unconventional non-monotonic field and temperature dependence of the magnetic order and excitation *** the high field regime where the quantum fluctuations are largely suppressed,we observed a disordered state with coherent magnon-like excitations despite the suppression of the spin excitation *** detailed semi-classical calculations,we are able to understand these behaviors quantitatively from the subtle competition between quantum fluctuations and frustrated Ising interactions.

关键词： Neutron scattering Quantum magnet Magnetic frustration Transverse field Ising model

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The new Surgical Instrument in Peritoneal Endometriosis Resection

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Surgical Science 2012年第8期3卷 403-405页

作者： Garri Tchartchian Andreas Hackethal Bernd Bojahr Rudy Leon De Wilde Klinik fur Minimal Invasive Chirurgie BerlinGermany Zentrum fur Frauenheilkunde und Geburtshilfe Universitätsklinikum GieBen und Marburg GmbHGiessenGermany Pius-Hospital Klinik für FrauenheilkundeGeburtshilfe und Gynakologische OnkologieOldenburgGermany

Purpose: Peritoneal resection for the therapy of oncological diseases as well as endometriosis is associated with major problems as injury to neighboring organs and difficulties in the establishment of the necessary hemostasis. In this paper we present a new dissection tool, the “Jet Grasper” (KARL STORZ?), which represents a further step towards simple, safe and effective laparoscopic peritoneal resection. Methods: The “Jet Grasper”, was developed to enable selective dissection of the peritoneum and, if necessary, other organs in the case of adhesions. For the tissue resection different techniques can be applied (e.g. ultrasound, mechanical or electrosurgical energy). Results: The tool features a dissection forceps with a narrow slit at the end of the jaw. Further selective dissection is achieved by applying water pressure retroperitoneally via a controlled water pressure pump. Furthermore a diameter difference between the jaw and the sheath potentiates dissection. The thin jaws are introduced precisely to separate and/or dissect layers in a physiological manner to enable further dissection of the peritoneum at a safe distance. Larger vessels can subsequently be targeted for bipolar coagulation in the opened retroperitoneal area. As we are exclusively presenting a completely new device, no patient data are included here. However, a prospective randomized study already started in April 2012, and will be reported after completion in two years. Conlusion: The new dissection tool combines selective dissection and resection under controlled water pressure, known from aquadissection. It provides enhanced and atraumatic possibilities in performing pelvic peritoneal resection via selective dissection and reduction of blood loss.

关键词： Jet Grasper Peritoneal Resection Complication Reduction Aquadissection Laparoscopic Surgery Endometriosis

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Suspension- and powder-based derivation of Hansen dispersibility parameters for zinc oxide quantum dots

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Particuology 2019年第3期17卷 71-79页

作者： Sebastian Siüβ Wei Lin Olga Getmanenko Lukas Pflug Titus Sobisch Wolfgang Peukert Dietmar Lerche Doris Segets Institute of Particle Technology (LFG) Friedrich-Alexander-Universitat Erlangen-Niimberg (FAU) Cauerstr. 4 91058 Erlangen Germany Interdisciplinary Center for Functional Particle Systems (FPS) Friedrich-Alexander-Universitat Erlangen-Niimberg (FAU) HaberstraJSe 9a 91058 Erlangen Germany Institute of Applied Mathematics 2 Friedrich-Alexander-Universitat Erlangen-Nümberg (FAU) Cauerstrajβe 11 91058 Erlangen Germany LUM gmbh Justus-von-Liebig StraJSe 3 12489 Berlin Germany Process Technology for Electrochemical Functional Materials Institute for Combustion and Gas Dynamics - Reactive Fluids (1VG) University Duisburg-Essen (UDE) Carl-Benz-StraJSe 199 47057 Duisburg Germany

For most particle-based applications, formulation in the liquid phase is a decisive step, and thus, particle interactions and stability in liquid media are of major importance. The concept of Hansen solubility parameters (HSP) was initially invented to describe the interactions of (polymer) molecules and their solubility in different liquids and is increasingly being used in particle technology to describe dispersibility. Because dispersions are not thermodynamically stable, the term Hansen dispersibility parameters (HDP) is used instead of HSP (SiiE, Sobisch, Peukert, Lerche,& Segets, 2018). Herein, we extend a previously developed standardized and non-subjective method for determination of Hansen parameters based on analytical centrifugation to the important class of quantum materials. As a technically relevant model system, zinc oxide quantum dots (QDs) were used to transfer our methodology to nanoparticles (NPs) with sizes below lOnm. The results obtained using the standard procedure starting from a dried powder were compared with those obtained through redispersion from the wet sediment produced during the typical washing procedure of QDs, and drying was observed to play an important role. In conclusion, our study reveals the high potential of HDP for quantifying the interfacial properties of NPs as well as their link to dispersibility.

关键词： Hansen solubility parameter Functionalization Semiconductor nanoparticles Colloidal stability Quantum material

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