cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci
Creators: name: Muvea, Alexander M.
name: Meyhöfer, Rainer
name: Subramanian, Sevgan
name: Poehling, Hans-Michael
name: Ekesi, Sunday
name: Maniania, Nguya K.
Publisher: name: San Francisco : Public Library Science
Year: 2014
Subjects: subject: yellow-spot-virus
subject: beauveria-bassiana ascomycota
subject: banana musa-spp.
subject: frankliniella-occidentalis
subject: metarhizium-anisopliae
subject: thysanoptera thripidae
subject: cosmopolites-sordidus
subject: balsamo vuillemin
subject: damage
subject: inoculation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Endophytic fungi, which live within host plant tissues without causing any visible symptom of infection, are important mutualists that mediate plant-herbivore interactions. Thrips tabaci (Lindeman) is one of the key pests of onion, Allium cepa L., an economically important agricultural crop cultivated worldwide. However, information on endophyte colonization of onions, and their impacts on the biology of thrips feeding on them, is lacking. We tested the colonization of onion plants by selected fungal endophyte isolates using two inoculation methods. The effects of inoculated endophytes on T. tabaci infesting onion were also examined. Seven fungal endophytes used in our study were able to colonize onion plants either by the seed or seedling inoculation methods. Seed inoculation resulted in 1.47 times higher mean percentage post-inoculation recovery of all the endophytes tested as compared to seedling inoculation. Fewer thrips were observed on plants inoculated with Clonostachys rosea ICIPE 707, Trichoderma asperellum M2RT4, Trichoderma atroviride ICIPE 710, Trichoderma harzianum 709, Hypocrea lixii F3ST1 and Fusarium sp. ICIPE 712 isolates as compared to those inoculated with Fusarium sp. ICIPE 717 and the control treatments. Onion plants colonized by C. rosea ICIPE 707, T. asperellum M2RT4, T. atroviride ICIPE 710 and H. lixii F3ST1 had significantly lower feeding punctures as compared to the other treatments. Among the isolates tested, the lowest numbers of eggs were laid by T. tabaci on H. lixii F3ST1 and C. rosea ICIPE 707 inoculated plants. These results extend the knowledge on colonization of onions by fungal endophytes and their effects on Thrips tabaci.
Virtual potentials for feedback traps
Creators: name: Jun, Yonggun
name: Bechhoefer, John
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The recently developed feedback trap can be used to create arbitrary virtual potentials, to explore the dynamics of small particles or large molecules in complex situations. Experimentally, feedback traps introduce several finite time scales: there is a delay between the measurement of a particle's position and the feedback response; the feedback response is applied for a finite update time; and a finite camera exposure integrates motion. We show how to incorporate such timing effects into the description of particle motion. For the test case of a virtual quadratic potential, we give the first accurate description of particle dynamics, calculating the power spectrum and variance of fluctuations as a function of feedback gain, testing against simulations. We show that for small feedback gains, the motion approximates that of a particle in an ordinary harmonic potential. Moreover, if the potential is varied in time, for example by varying its stiffness, the work that is calculated approximates that done in an ordinary changing potential. The quality of the approximation is set by the ratio of the update time of the feedback loop to the relaxation time of motion in the virtual potential.
description: 9 pages, 6 figures. Published version format is 8 pages. Available at http://pre.aps.org/abstract/PRE/v86/i6/e061106 and http://www.sfu.ca/chaos/papers/2012/jun_pre12.pdf
Untersuchungen zur Klärung der Funktion der "early light-inducible proteins" (ELIPs) bei höheren Pflanzen
Creators: name: Schröder, Melanie
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: ELIP
subject: xanthophyll cycle
subject: Vitis vinifera
subject: Arabidopsis thaliana
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Analytical determination of the turn-to-turn capacitances for the prediction of voltage peaks in a PWM-fed motor winding
Creators: name: Stockbrügger, Jan Ole
name: Ponick, Bernd
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2020
Subjects: subject: Insulation stress
subject: Surge voltage distribution
subject: Traction motor
subject: Turn-to-turn capacitance
subject: Winding failure
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The number of inverter-fed motors is increasing due to the good controllability of the motor and the meanwhile low acquisition costs. The steep voltage slopes of the converters lead to an uneven voltage distribution along the winding and thus to voltage peaks between the conductors, which stresses the insulation. The voltage distribution can be predicted by means of equivalent circuit diagrams, which take into account the capacitive coupling between the conductors. This paper presents a novel approach for an analytical determination of the turn-to-turn capacitances, which, in addition to the geometry and the placement of the conductors, considers the influence of materials with different permittivities.The conductors are simulated by means of line charges discretely placed inside the electrodes and receptor points attached to the conductor surfaces. The capacitances are determined by means of the Maxwell capacitance matrix. The method is validated by means of FEM simulations for different geometries and materials.
Correlation between total pressure losses of highly loaded annular diffusers and integral stage design parameters
Creators: name: Mimic, Dajan
name: Jätz, Christoph
name: Herbst, Florian
Publisher: name: Zug : GPPS
Year: 2018
Subjects: subject: Analytical chemistry
subject: Correlation
subject: Physics
subject: Total pressure
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Diffusers convert kinetic flow energy into a rise in static pressure. This pressure recovery is the primary aerodynamic design objective for exhaust gas diffusers in power-generating steam and gas turbines. The total pressure loss is an equally important diffuser design parameter. It is strongly linked to the pressure recovery and the residual kinetic energy of the diffuser outlet flow. A reduction benefits the overall thermodynamic cycle, which requires the adjacent components of a diffuser to be included in the design process.; This paper focuses on the total pressure losses in the boundary layer of a highly loaded annular diffuser. Due to its large opening angle the diffuser is susceptible to flow separation under uniform inlet conditions, which is a major source for total pressure losses. However, the unsteady tip leakage vortices of the upstream rotor, which are a source of losses, stabilise the boundary layer and prevent separation. Experiments and unsteady numerical simulation conducted show that the total pressure loss reduction caused by the delayed boundary layer separation exceed the vortex-induced losses by far. This flow interaction between the rotor and diffuser consequently decreases the overall total pressure losses.The intensity of the tip leakage vortex is linked to three rotor design parameters, namely work coefficient, flow coefficient and reduced blade-passing frequency. Based on these parameters, we propose a semi-empiric correlation to predict and evaluate the change in total pressure losses with regards to design operating conditions.
THE ROLE OF THE HUMAN FACTOR IN THE MARKET ECONOMY
Creators: name: Berkaeva, Albina
name: Yablochnikova, Irina
name: Kutsuri, Georgi
name: Tinikashvili, Tengiz
name: Stativa, Ekaterina
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: labor power
human factor
labor
market economy
information technologies

description: One of the basic resources of economic growth is the human factor, the relevance of which in the modern economic system is actively increasing. This is primarily because every day many companies are becoming more and more aware of the importance of the considered category in any business for efficient and successful operation. Indeed, in the current realities, it is the human factor that is responsible for the well-being and success of enterprises due to the competence and professionalism of employees. In this regard, in our opinion, the main task of any management team is to find ways to manage the company's employees as efficiently as possible by creating favorable mutually beneficial conditions for both the labor power and the entire business as a whole.
Optimal Multiuser Zero-Forcing with Per-Antenna Power Constraints for Network MIMO Coordination
Creators: name: Kaviani, Saeed
name: Krzymien, Witold A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider a multi-cell multiple-input multiple-output (MIMO) coordinated downlink transmission, also known as network MIMO, under per-antenna power constraints. We investigate a simple multiuser zero-forcing (ZF) linear precoding technique known as block diagonalization (BD) for network MIMO. The optimal form of BD with per-antenna power constraints is proposed. It involves a novel approach of optimizing the precoding matrices over the entire null space of other users' transmissions. An iterative gradient descent method is derived by solving the dual of the throughput maximization problem, which finds the optimal precoding matrices globally and efficiently. The comprehensive simulations illustrate several network MIMO coordination advantages when the optimal BD scheme is used. Its achievable throughput is compared with the capacity region obtained through the recently established duality concept under per-antenna power constraints.
description: 14 pages, 8 figures
THE PROBLEM OF POVERTY IN THE MODERN WORLD IN THE CONTEXT OF SUSTAINABLE DEVELOPMENT
Creators: name: Ayna Salamova
name: Khodjaliev, Saleh
name: Dokholyan, Sergey
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: problem of poverty
social stratification

description: The problem of poverty is the deepest social issue with a two-hundred year history. During the period of economic reforms in our country, social structure of society has changed since economic reforms took place in our country recently. A rapid social stratification occurred, there were layers of poor and rich people. People who have lost social protection of state and losing need to adapt living in conditions market instability are most common. It is more common that people who lose the social protection of state and losing need to adapt life in conditions of market volatility, as. The expansion of much poor people was inevitable. Because of this conditions, the expansion of many poor people was inevitable. An analysis of poverty used in the middle twentieth century showed its complex and ambiguity. The knowledge of multiple dimensionalities in the phenomenon implies a systematic approach for study about Poverty. Described figures from official statistics: towards the present time, approximately 40% of us live below this poverty line. It created the choice of topic and its relevance. To study this problem in detail, it is necessary to conduct an in-depth scientific study, a thorough theoretical analysis and the development of practical guidelines based on the presented basis. These guidelines could be used to develop and implement an effective economic and social policy that would undoubtedly be aimed at reducing poverty to the lowest level.
Züchtung mit transgenen Pflanzen : Kombination rekombinanter Pilzresistenzgene mittels Kreuzung transgener Erbsenlinien (Pisum sativum L.)
Creators: name: Richter, Andrea
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Transgenic pea
subject: gene stacking
subject: antifungal resistance
subject: PGIP
subject: vst1
subject: expression stability
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
THE USE OF NATURAL FILTRATION SORBENTS TO SOLVE THE SAFETY PROBLEMS OF INDUSTRIAL POLLUTION FACILITIES
Creators: name: Belousov, Peter
name: Rumyantseva, Anastasia
name: Kim, Ksenia
name: Pokidko, Boris
name: Milyutin, Vitaliy
name: Izosimova, Yulia
name: Tyupina, Ekaterina
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: sorption
sorbents
glauconite
zeolite
diatomite
vermiculate
coal
peat

description: This work is devoted to the review of mineral and organic natural sorbents for the purpose of purification of polluted waters of industrial enterprises. Structural features, differences in the composition and properties of the most common natural sorbents, features of their application and sorption mechanisms of pollutants are shown. The main mechanisms of sorption for clay minerals and zeolite is ion exchange; for siliceous rocks such as diatomite, tripoli and gaize physical adsorption on the surface of pores and reaction with silonol groups. Organic natural sorbents have both mechanisms of complex formation and physical adsorption, as well as ion exchange. It is shown that the creation of multicomponent granular permeable granules can significantly increase the efficiency of natural sorbents and will make their use more accessible and improve the safety of the industrial sector and nuclear legacy facilities.
UP-TO-DATE DETAILED SEISMIC ZONING OF REGIONS IN KAZAKHSTAN (PGA CASE)
Creators: name: Silacheva, Natalya
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: probabilistic seismic hazard assessment
seismic zoning
peak ground acceleration

description: The results of the first project in Kazakhstan on the Detailed Seismic Zoning of regions on a new methodological basis are presented. The Probabilistic Seismic Hazard Assessment is carried out for the territories of East Kazakhstan (since 2022 EKO and Abay), Almaty (since 2022 Almaty and Zhetysu) and Zhambyl regions using a methodology consistent with the main provisions of Eurocode 8 and updated compared to that used in maps of the recent General Seismic Zoning of Kazakhstan territory. Modern methods and tools of analysis were used, as well as the most complete and up-to-date information available for the territories under consideration. The seismic source model included areal sources and active faults. The developed maps are discussed and hazard curves and uniform hazard spectra for the main cities in the considered regions are presented. The obtained results are generally consistent with the General Seismic Zoning but display some differences in PGA distribution due to including active faults and a comprehensively revised catalogue. Zoning maps will be the basis for the development of new state building regulations of the Republic of Kazakhstan.
USE OF SECONDARY ENERGY RESOURCES OF MODULAR POWER PLANTS WITH A GAS ENGINE AND REDUCTION OF HARMFUL EMISSIONS
Creators: name: Jamala Mamedova
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: modular power plants
exhaust gases
heat supply
efficiency
fuel economy

description: The paper considers the use of exhaust gas heat in modular power plants. In this regard, fuel consumption at power plants will decrease, efficiency of power plant will increase the emission of harmful gases into the atmosphere and environmental burden will reduce.
ПАТОФИЗИОЛОГИЯ ИНСУЛЬТА И ЕГО ЛЕЧЕНИЕ
Creators: name: Суюнова, Замира
name: Сафоева, Зебо
Publisher: name: Zenodo
Year: 2023

description: Статья "Патофизиология инсульта и его лечение" представляет собой обзор текущего состояния знаний о патофизиологии и методах лечения инсульта. Инсульт является одной из ведущих причин смерти и инвалидности, и необходимость более глубокого понимания его патологических механизмов становится все более существенной.
A New Tool Concept for Milling Automotive Components
Creators: name: Denkena, Berend
name: Grove, Thilo
name: Krödel, Alexander
Publisher: name: Amsterdam : Elsevier
Year: 2016
Subjects: subject: end-milling
subject: milling
subject: steel
subject: tool geometry
subject: wear
subject: Automotive industry
subject: Cutting
subject: Cutting tools
subject: Geometry
subject: Iterative methods
subject: Steel
subject: Thin walled structures
subject: Wear of materials
subject: Automotive component
subject: Cutting performance
subject: End milling
subject: Flexible production process
subject: Iterative development
subject: Secondary processing
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Due to the rising number of car variants, the production systems in automobile industry are driven by a strong demand for flexible production processes. In the production of thin-walled workpieces, forming and cutting processes stand in concurrence to each other. In many applications, cutting processes facilitate higher flexibility regarding possible workpiece geometries. However, the required productivity is demanding. In this paper, a multi-sectional milling tool is developed to reach the required cutting performance by minimizing secondary processing times. Tool geometry is optimized with statistical methods to enable a target oriented tool development and reduce iterative development steps in milling tool design processes.
MPEC 2023-F94 : 2023 FV2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FV2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Correlation between process load and deep rolling induced residual stress profiles
Creators: name: Denkena, Berend
name: Grove, Thilo
name: Breidenstein, Bernd
name: Abrão, A.
name: Meyer, K.
Publisher: name: Amsterdam : Elsevier B.V.
Year: 2018
Subjects: subject: deep rolling
subject: mechanical load
subject: Residual stresses
subject: surface integrity
subject: Manufacture
subject: Compressive residual stress
subject: Deep rolling
subject: Manufacturing process
subject: Mechanical loads
subject: Process loads
subject: Residual stress profiles
subject: Subsurface properties
subject: Surface integrity
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Deep rolling is often used as a finishing step after cutting because of its beneficial influence on surface and subsurface properties, which lead to an increase in performance and lifecycle behavior. This manufacturing process is suitable to reduce roughness and to induce compressive residual stresses. As thermal effects only play a minor role in the deep rolling process, it is possible to link the resulting residual stresses to the analytically determined internal process loads. The boundaries of these relationships are investigated on hardened AISI 4140 using different mechanical loads and overlap factors.
Aktive Dämpfung von Triebstrangschwingungen
Creators: name: Schwenger, Andreas
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Triebstrangregelung
subject: Reibschwingung
subject: linear optimaler Regler
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
A Harris-type van der Waals density functional scheme
Creators: name: Berland, Kristian
name: Londero, Elisa
name: Schroder, Elsebeth
name: Hyldgaard, Per
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Large biomolecular systems, whose function may involve thousands of atoms, cannot easily be addressed with parameter-free density functional theory (DFT) calculations. Until recently a central problem was that such systems possess an inherent sparseness, that is, they are formed from components that are mutually separated by low-electron-density regions where dispersive forces contribute significantly to the cohesion and behavior. The introduction of, for example, the van der Waals density functional (vdW-DF) method [PRL 92, 246401 (2004)] has addressed part of this sparse-matter system challenge. However, while a vdW-DF study is often as computationally efficient as a study performed in the generalized gradient approximation, the scope of large-sparse-matter DFT is still limited by computer time and memory. It is costly to self-consistently determine the electron wavefunctions and hence the kinetic-energy repulsion. In this paper we propose and evaluate an adaption of the Harris scheme [PRB 31, 1770 (1985)]. This is done to speed up non-selfconsistent vdW-DF studies of molecular-system interaction energies. Also, the Harris-type analysis establishes a formal link between dispersion-interaction effects on the effective potential for electron dynamics and the impact of including selfconsistency in vdW-DF calculations [PRB 76, 125112 (2007)].
description: 15 pages
title: Elucidation of the anaerobic biosynthesis of vitamin B₁₂ in Bacillus megaterium
Creators: name: John Moore, Simon
Publisher: name: University of Kent
Year: 2023

description: Vitamin B₁₂ (cobalamin) is one of Nature's most complex small molecules. It is a cobalt-containing modified tetrapyrrole that plays a number of key metabolic roles in many prokaryotic systems and is also essential to the biochemistry of higher animals. However, it is made by only certain bacteria, requiring around thirty enzymatic steps for its complete de novo construction. Surprisingly, the nutrient is synthesised by one of two related, though genetically distinct, pathways that represent aerobic or anaerobic routes. The anaerobic pathway has remained poorly characterised due to the instability of the pathway intermediates to oxygen and the low activity of enzymes, and is the focus of the research reported in this thesis. The Gram-positive aerobe Bacillus megaterium has previously been used for the commercial production of cobalamin and has a complete anaerobic pathway. Several genes, (termed chi for cobinamide biosynthesis) from the cobalamin biosynthetic pathway have been cloned and overexpressed individually within the host B. megaterium DSM319. One of the major bottlenecks in the anaerobic pathway is the ring contraction step, where only limited yields (<5 %) of product had previously been obtained using crude-lysate based incubations. By studying the purified B. megaterium CbiH60 enzyme, an efficient method was developed to allow the generation of the ring-contracted product cobalt-factor IV in high yields. This breakthrough then permitted the characterisation of many of the down-stream steps in the pathway to be characterised by using other purified cobalamin biosynthetic enzymes from B. megaterium, by incubating combinations of purified enzymes with cobalt-factor IV and the appropriate cofactors (SAM, NADH). This has resulted in the successful step-by-step elucidation of the anaerobic cobalamin pathway, including the isolation of the long sought-after and elusive intermediates cobaltprecorrin- 5, -6A, -6B, -7 and -8. An enzyme-cocktail approach has also resulted in a full in vitro synthesis of cobyrinic acid (the first known stable intermediate in the pathway) from 5-aminolevulinic acid has been demonstrated, involving a full 15 enzymatic steps. The exposition of the anaerobic pathway has been interpreted with respect to the chemical logic of the metabolic process and the evolution of multifaceted biochemical pathways.
Interference Induced Asymmetric Transmission Through A Monolayer of Anisotropic Chiral Metamolecules
Creators: name: Zhang, Shuang
name: Liu, Fu
name: Zentgraf, Thomas
name: Li, Jensen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that asymmetric transmission for linear polarizations can be easily achieved by a monolayer of anisotropic chiral metamolecules through the constructive and destructive interferences between the contributions from anisotropy and chirality. Our analysis is based on the interaction of electromagnetic waves with the constituent electric and magnetic dipoles of the metamaterials, and an effective medium formulation. In addition, asymmetric transmission in amplitude can be effectively controlled by the interference between spectrally detuned resonances. Our findings shed light on the design of metamaterials for achieving strong asymmetric transmission.
description: 15 pages, 4 figures
Helianthemum salicifolium
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: H. salicifolium (L.) Miller Cat. 35. In der var. macrocarpum Willk. Die aus Distr. l angegebene Fundstelle: Les Marques bei Martigny, scheint erloschen. 2: Ob Branson-Fully bis 750 m (Garns); Fully-Saillon (Gams u. a.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Performance of jet substructure techniques for large-R jets in proton-proton collisions at sqrt(s) = 7 TeV using the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper presents the application of a variety of techniques to study jet substructure. The performance of various modified jet algorithms, or jet grooming techniques, for several jet types and event topologies is investigated for jets with transverse momentum larger than 300 GeV. Properties of jets subjected to the mass-drop filtering, trimming, and pruning algorithms are found to have reduced sensitivity to multiple proton-proton interactions, are more stable at high luminosity and improve the physics potential of searches for heavy boosted objects. Studies of the expected discrimination power of jet mass and jet substructure observables in searches for new physics are also presented. Event samples enriched in boosted W and Z bosons and top-quark pairs are used to study both the individual jet invariant mass scales and the efficacy of algorithms to tag boosted hadronic objects. The analyses presented use the full 2011 ATLAS dataset, corresponding to an integrated luminosity of 4.7 +/- 0.1 /fb from proton-proton collisions produced by the Large Hadron Collider at a center-of-mass energy of sqrt(s) = 7 TeV.
description: 72 pages plus author list (93 pages total), 125 figures, 2 tables, submitted to JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/PERF-2012-02/
Serendipitous discovery of a massive cD galaxy at z=1.096: Implications for the early formation and late evolution of cD galaxies
Creators: name: Liu, F. S.
name: Guo, Yicheng
name: Koo, David C.
name: Trump, Jonathan R.
name: Barro, Guillermo
name: Yesuf, Hassen
name: Faber, S. M.
name: Giavalisco, M.
name: Cassata, P.
name: Koekemoer, A. M.
name: Pentericci, L.
name: Castellano, M.
name: Cheung, Edmond
name: Mao, Shude
name: Xia, X. Y.
name: Grogin, Norman A.
name: Hathi, Nimish P.
name: Huang, Kuang-Han
name: Kocevski, Dale
name: McGrath, Elizabeth J.
name: Wuyts, Stijn
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have made a serendipitous discovery of a massive cD galaxy at z=1.096 in a candidate rich cluster in the HUDF area of GOODS-South. This brightest cluster galaxy is the most distant cD galaxy confirmed to date. Ultra-deep HST/WFC3 images reveal an extended envelope starting from ~10 kpc and reaching ~70 kpc in radius along the semi-major axis. The spectral energy distributions indicate that both its inner component and outer envelope are composed of an old, passively-evolving stellar population. The cD galaxy lies on the same mass-size relation as the bulk of quiescent galaxies at similar redshifts. The cD galaxy has a higher stellar mass surface density but a similar velocity dispersion to those of more-massive, nearby cDs. If the cD galaxy is one of the progenitors of today's more massive cDs, its size and stellar mass have had to increase on average by factors of $3.4\pm1.1$ and $3.3\pm1.3$ over the past ~8 Gyrs, respectively. Such increases in size and stellar mass without being accompanied by significant increases in velocity dispersion are consistent with evolutionary scenarios driven by both major and minor dry mergers. If such cD envelopes originate from dry mergers, our discovery of even one example proves that some BCGs entered the dry merger phase at epochs earlier than z=1. Our data match theoretical models which predict that the continuance of dry mergers at z<1 can result in structures similar to those of massive cD galaxies seen today. Moreover, our discovery is a surprise given that the extreme depth of the HUDF is essential to reveal such an extended cD envelope at z>1 and, yet, the HUDF covers only a minuscule region of sky. Adding that cDs are rare, Our serendipitous discovery hints that such cDs may be more common than expected. [Abridged]
description: 9 pages, 6 figures, accepted for publication in ApJ
Conceptual comparison between standard Si solar cells and back contacted cells
Creators: name: Ali, Adnan
name: Ohrdes, Tobias
name: Wagner, Hannes
name: Altermatt, Pietro P.
Publisher: name: Amsterdam : Elsevier
Year: 2014
Subjects: subject: Back surface field
subject: Cz
subject: IBC
subject: Short cirucit current density
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: It is often stated that one of the main advantages of back-contacted (BC) Si solar cells over standard cells is that shading due to the front-finger metallization is avoided - while it is also often stated that BC cells are prone to "electronic shadowing", which means that the carrier collection efficiency in front of the back-surface-field (BSF) may be reduced. We compare these two cell concepts in two ways: by means of an extensive collection of measured IV data from literature, and by interpreting as well as quantifying the differences with the aid of numerical device simulation. Both literature data and simulations indicate that BC cells have a Jsc-advantage of maximally about 1 mA/cm2, but in Voc and FF there is no clear advantage or disadvantage over standard cells. With a parameter study, we reveal the main design advantages and weaknesses in each cell type. Our numerical device modeling indicates that one of the most crucial design advantages of BC over standard cells is that the collection of minority carriers in the emitter is rather unimportant, which leaves greater flexibility in emitter design than in standard cells.
Magnetism and electronic properties of BiFeO3 under lower pressure
Creators: name: Feng, Hong-Jian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ab initio calculations show an antiferromagnetic-ferromagnetic phase transition around 9-10 GPa and a magnetic anomaly at 12 GPa in BiFeO3. The magnetic phase transition also involves a structural and insulator-metal transition. The G-type AFM configuration under pressure leads to an increase of the y component and decrease of the z component of the magnetization, which is caused by the splitting of the dz2 orbital from doubly degenerate eg states. Our results agree with recent experimental results.
New formulas for decreasing rearrangements and a class of Orlicz-Lorentz spaces
Creators: name: Kamińska, Anna
name: Raynaud, Yves
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 26D07, 39B62, 42B25, 46B10, 46E30

description: Using a nonlinear version of the well known Hardy-Littlewood inequalities, we derive new formulas for decreasing rearrangements of functions and sequences in the context of convex functions. We use these formulas for deducing several properties of the modular functionals defining the function and sequence spaces $M_{φ,w}$ and $m_{φ,w}$ respectively, introduced earlier in \cite{HKM} for describing the Köthe dual of ordinary Orlicz-Lorentz spaces in a large variety of cases ($φ$ is an Orlicz function and $w$ a {\it decreasing} weight). We study these $M_{φ,w}$ classes in the most general setting, where they may even not be linear, and identify their Köthe duals with ordinary (Banach) Orlicz-Lorentz spaces. We introduce a new class of rearrangement invariant Banach spaces $\mathcal{M}_{φ,w}$ which proves to be the Köthe biduals of the $M_{φ,w}$ classes. In the case when the class $M_{φ,w}$ is a separable quasi-Banach space, $\mathcal{M}_{φ,w}$ is its Banach envelope.
description: 25 pages
Mass acquisition of Dirac fermions in Cr-doped topological insulator Sb2Te3 films
Creators: name: Jiang, Yeping
name: Li, Zhi
name: Song, Canli
name: Chen, Mu
name: Greene, Richard L.
name: He, Ke
name: Wang, Lili
name: Chen, Xi
name: Ma, Xucun
name: Xue, Qi-Kun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We introduce time-reversal-symmetry breaking by doping Cr atoms into the topmost quintuple layer or into the bulk of Sb2Te3 thin films. We find that even at a high Cr-doping level the Landau level spectrum keeps a good quality, enabling the first demonstration of deviation of the zero-mode Landau level, induced by the acquisition of a mass term in the surface states in the presence of surface or bulk magnetic doping. The magnitude of the mass term in the surface states increases with increasing Cr-doping level. Our observation suggests Cr-doped Sb2Te3 is a promising candidate for the realization of the proposed novel magnetoelectric effects.
description: 18 pages, 4 figures
Assessment of Surface-Layer Coherent Structure Detection in Dual-Doppler Lidar Data Based on Virtual Measurements
Creators: name: Stawiarski, Christina
name: Träumner, Katja
name: Kottmeier, Christoph
name: Knigge, Christoph
name: Raasch, Siegfried
Publisher: name: Berlin : Kluwer Academic Publishers
Year: 2015
Subjects: subject: Coherent structures
subject: Dual Doppler
subject: Large-eddy simulation
subject: Lidar
subject: Doppler effect
subject: Large eddy simulation
subject: Wavelet analysis
subject: Wind
subject: Coherent structure
subject: Correlation lengths
subject: Dual-Doppler-lidar
subject: In-situ measurement
subject: Reliable results
subject: Two dimensional plane
subject: Virtual measurements
subject: Optical radar
subject: boundary layer
subject: Doppler lidar
subject: surface layer
subject: wind velocity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Dual-Doppler lidar has become a useful tool to investigate the wind-field structure in two-dimensional planes. However, lidar pulse width and scan duration entail significant and complex averaging in the resulting retrieved wind-field components. The effects of these processes on the wind-field structure remain difficult to investigate with in situ measurements. Based on high resolution large-eddy simulation (LES) data for the surface layer, we performed virtual dual-Doppler lidar measurements and two-dimensional data retrievals. Applying common techniques (integral length scale computation, wavelet analysis, two-dimensional clustering of low-speed streaks) to detect and quantify the length scales of the occurring coherent structures in both the LES and the virtual lidar wind fields, we found that, (i) dual-Doppler lidar measurements overestimate the correlation length due to inherent averaging processes, (ii) the wavelet analysis of lidar data produces reliable results, provided the length scales exceed a lower threshold as a function of the lidar resolution, and (iii) the low-speed streak clusters are too small to be detected directly by the dual-Doppler lidar. Furthermore, we developed and tested a method to correct the integral scale overestimation that, in addition to the dual-Doppler lidar, only requires high-resolution wind-speed variance measurements, e.g. at a tower or energy balance station.
Cubature on Wiener space: pathwise convergence
Creators: name: Bayer, Christian
name: Friz, Peter K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Computational Finance (q-fin.CP)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 65C05, 65C30

description: Cubature on Wiener space [Lyons, T.; Victoir, N.; Proc. R. Soc. Lond. A 8 January 2004 vol. 460 no. 2041 169-198] provides a powerful alternative to Monte Carlo simulation for the integration of certain functionals on Wiener space. More specifically, and in the language of mathematical finance, cubature allows for fast computation of European option prices in generic diffusion models. We give a random walk interpretation of cubature and similar (e.g. the Ninomiya--Victoir) weak approximation schemes. By using rough path analysis, we are able to establish weak convergence for general path-dependent option prices.
Recombination at local aluminum-alloyed silicon solar cell base contacts by dynamic infrared lifetime mapping
Creators: name: Müller, Jens
name: Bothe, Karsten
name: Gatz, Sebastian
name: Plagwitz, Heiko
name: Schubert, Gunnar
name: Brendel, Rolf
Publisher: name: Amsterdam : Elsevier BV
Year: 2011
Subjects: subject: Carrier lifetime
subject: Laser ablation
subject: Local back surface field
subject: Silicon solar cells
subject: Back surface fields
subject: Charge carrier recombination
subject: Contact geometry
subject: Contact opening
subject: Dielectric stack
subject: Float zone silicon
subject: High quality
subject: Lifetime mapping
subject: Line contact
subject: P-type
subject: Recombination velocity
subject: Reverse-saturation currents
subject: Ablation
subject: Aluminum
subject: Crystalline materials
subject: Laser applications
subject: Photovoltaic effects
subject: Aluminum alloys
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The application of local aluminum (Al)-alloyed contacts to the p-type base of silicon solar cells reduces minority charge carrier recombination due to the formation of a local back surface field (LBSF). We study the recombination properties and formation of base contacts, which are realized by local laser ablation of a dielectric stack (laser contact opening - LCO) and subsequent full area screen printing of Al paste. Based on charge carrier lifetime measurements using the camera-based and calibration-free dynamic infrared lifetime mapping (ILM) technique, we determine contact recombination velocities at the contacts as low as Scont = 65 cm/s on 200 Ωcm float-zone silicon (FZ-Si) and corresponding reverse saturation current densities of J0,cont = 900 fA/cm2 on 1.5 Ωcm FZ-Si. As a result we show that local contact geometries with point contact radii r > 100 μm and line contact widths a > 80 μm are appropriate for lowest contact recombination employing local Al alloyed contacts. Furthermore, complete and high quality laser ablation of the dielectric stack is necessary for the formation of a sufficiently thick LBSF.
Thermopower of few-electron quantum dots with Kondo correlations
Creators: name: Ye, LvZhou
name: Hou, Dong
name: Wang, Rulin
name: Zheng, Xiao
name: Yan, YiJing
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The thermopower of few-electron quantum dots with Kondo correlations is investigated via a hierarchial equations of motion approach. The thermopower is determined by the line shape of spectral function within a narrow energy window defined by temperature. Based on calculations and analyses on single-level and two-level Anderson impurity models, the underlying relations between thermopower and various types of electron correlations are elaborated. In particular, an unconventional sign reversal behavior is predicted for quantum dots with a suitable inter-level spacing. The new feature highlights the significance of multi-level effects and their interplay with Kondo correlations. Our finding and understanding may lead to novel thermoelectric applications of quantum dots.
description: 5 pages, 4 figures
Technik und Einsatz von hochtemperatur-supraleitenden Leistungstransformatoren
Creators: name: Sissimatos, Emmanuel
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: HTS-transformer
subject: superconductivity
subject: SFCL-transformer
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Quantifizierung diffuser Nährstoffeinträge : vergleichende Bewertung mesoskaliger Modelle
Creators: name: Scheer, Carsten
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Diffuse Nährstoffeinträge
subject: Bewertung mesoskaliger Modelle
subject: EG-Wasserrahmenrichtlinie
subject: Bewertungsmatrix
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen

description: [no abstract]
Ontogenese und funktionelle Charakterisierung immunregulatorischer T-Zellen in einem transgenen Mausmodell
Creators: name: Sorge, Yanina
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Intermediate T cells
subject: regulatory
subject: infectious tolerance
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
The hottest superfluid and superconductor in the Universe: Discovery and nuclear physics implications
Creators: name: Ho, Wynn C. G.
name: Andersson, Nils
name: Espinoza, Cristobal M.
name: Glampedakis, Kostas
name: Haskell, Brynmor
name: Heinke, Craig O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present recent work on using astronomical observations of neutron stars to reveal unique insights into nuclear matter that cannot be obtained from laboratories on Earth. First, we discuss our measurement of the rapid cooling of the youngest neutron star in the Galaxy; this provides the first direct evidence for superfluidity and superconductivity in the supra-nuclear core of neutron stars. We show that observations of thermonuclear X-ray bursts on neutron stars can be used to constrain properties of neutron superfluidity and neutrino emission. We describe the implications of rapid neutron star rotation rates on aspects of nuclear and superfluid physics. Finally, we show that entrainment coupling between the neutron superfluid and the nuclear lattice leads to a less mobile crust superfluid; this result puts into question the conventional picture of pulsar glitches as being solely due to the crust superfluid and suggests that the core superfluid also participates.
description: 8 pages, 4 figures; Proceedings of Xth Quark Confinement and the Hadron Spectrum, M. Berwein, N. Brambilla, S. Paul (eds.); v2 same as v1; correction to editor list
Robust Joint Precoder and Equalizer Design in MIMO Communication Systems
Creators: name: Kaviani, Saeed
name: Krzymien, Witold A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We address joint design of robust precoder and equalizer in a MIMO communication system using the minimization of weighted sum of mean square errors. In addition to imperfect knowledge of channel state information, we also account for inaccurate awareness of interference plus noise covariance matrix and power shaping matrix. We follow the worst-case model for imperfect knowledge of these matrices. First, we derive the worst-case values of these matrices. Then, we transform the joint precoder and equalizer optimization problem into a convex scalar optimization problem. Further, the solution to this problem will be simplified to a depressed quartic equation, the closed-form expressions for roots of which are known. Finally, we propose an iterative algorithm to obtain the worst-case robust transceivers.
description: 2 figures, 5 pages, conference
Helianthemum canum
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: H. canum X nummularium - 2: Branson (nach Gams).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Chemical Capping Synthesis of Nickel Oxide Nanoparticles and their Characterizations Studies
Creators: name: rifaya, M. Nowsath
name: Theivasanthi, T.
name: Alagar, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This work reports aspect related to chemical capping synthesis of nano-sized particles of nickel oxide. It is a simple, novel and cost effective method. The average particle size, specific surface area, crystallinity index are estimated from XRD analysis. The structural, functional groups and optical characters are analyzed with using of SEM, FTIR and UV- visible techniques. XRD studies confirm the presence of high degree of crystallinity nature of nickel oxide nanoparticles. Their particle size is found to be 12 nm and specific surface area (SSA) is 74m2 g-1. The optical band gap energy value 3.83ev has also been determined from UV-vis spectrum.
description: 11 Pages, 5 Figures and 2 Tables
title: Wybrane problemy zarządzania rozwojem organizacji w przemyśle 4.0
Creators: name: Lachiewicz, Stefan
name: Flaszewska, Sylwia
Publisher: name: Wydawnictwo Politechniki Łódzkiej
Year: 2019

description: Procesy rozwoju organizacji gospodarczych przybierają szczególną postać w warunkach współczesnej gospodarki, która cechuje się znaczącym postępem technologicznym i jest określana często mianem przemysłu czy rewolucji 4.0. Różnym aspektom tak pojmowanych procesów rozwojowych jest poświęcona niniejsza monografia. Jej celem jest identyfikacja, analiza i ocena wybranych wyzwań rozwojowych, jakie stoją przed pracownikami, organizacjami i innymi podmiotami w warunkach współczesnej gospodarki.
Vergleichende Untersuchungen der suprachiasmatischen Nuclei von rhythmischen und arrhythmischen Dsungarischen Zwerghamstern (Phodopus sungorus)
Creators: name: Perl, Frauke
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Arrhythmia
subject: clock genes
subject: Phodopus sungorus
subject: Dewey Decimal Classification::500 | Naturwissenschaften::590 | Tiere (Zoologie)

description: [no abstract]