cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cotton in Zambia: 2007 Assessment of its Organization, Performance, Current Policy Initiatives, and Challenges for the Future
Creators: name: Tschirley, David L.
name: Kabwe, Stephen
name: Tschirley, David L.
name: Kabwe, Stephen
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: food security
subject: policy
subject: Zambia
subject: Africa
subject: cotton

description: Cotton is one unquestioned success of Zambia’s turn towards a market economy. After liberalization in late 1994, production rose from 20,000 mt to over 100,000 mt in the 1998 harvest year. After collapsing to less than 50,000 mt in 2000, it has risen steadily, nearing 200,000 mt in 2005. Over 2002-2005, exports of cotton lint were first among all agricultural exports in value, 30% higher than any other agricultural export (Export Board of Zambia 2006). The closest competitor to cotton during this time –raw cane sugar –is primarily produced on large operations, while cotton is almost entirely a smallholder crop. Its potential role in poverty alleviation and food security is, thus, very large. The success of this sector has been achieved despite persistent declines in international cotton prices since 1995, serious problems of credit default during the late 1990s, the departure in 1999 of the sector’s biggest company, Lonrho, and a very recent crisis brought on by the appreciation of the Zambian Kwacha during 2006.
The 3 E's - Three key concepts in the context of sustainability
Creators: name: fnma KI-PW
Publisher: name: Universität Innsbruck
Year: 2025
Subjects: classificationCode: https://w3id.org/oerbase/vocabs/oefos2012/502022
subject: Nachhaltiges Wirtschaften

description: Diese Präsentation führt in die drei zentralen Aspekte der Nachhaltigkeit ein: Umwelt (Environment), Gerechtigkeit (Equity) und Wirtschaft (Economy). Sie erklärt auf einfache Weise, wie diese drei Elemente miteinander verbunden sind und warum ein Gleichgewicht zwischen ihnen notwendig ist, um nachhaltige Entwicklung zu erreichen.

Texte wurden mittels ChatGPT4 erstellt und Bilder wurden mittels Canva Magic Studio erstellt im Rahmen des fnma OER-KI-Projektes.
Additional file 3 of Comparative analyses of DNA repeats and identification of a novel Fesreba centromeric element in fescues and ryegrasses
Creators: name: Zwyrtková, Jana
name: Alžběta Němečková
name: Čížková, Jana
name: Kateřina Holušová
name: Kapustová, Veronika
name: Svačina, Radim
name: Kopecký, David
name: Till, Bradley John
name: Doležel, Jaroslav
name: Hřibová, Eva
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Table S2. Representation of the RT domain and non-coding part of the LTR region of the Fesreba element estimated by ddPCR. Copy numbers of the reverse transcriptase (RT) domain and non-coding part of the LTR region of the Fesreba element were estimated with droplet digital PCR. Values are averages of three independent experiments with standard deviations.
Synchrotron X-Ray Reflectivity Study of the Adsorption Film of Octadecanamide at the Toluene-Water Interface
Creators: name: Tikhonov, Aleksey M.
name: Volkov, Yurii O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The structure of an adsorption octadecanamide film at the planar toluene-water interface is studied by X-ray reflectometry using synchrotron radiation with photon energy of 15 keV. The electron density (polarizability) profiles, according to which the interface structure is determined by the pH level in the water subphase, are reconstructed from experimental data with the help of a model-independent approach. For a high pH~11, the adsorption film is a crystalline octadecanamide monolayer with a thickness of about 2.6 nm, in which aliphatic tails of surfactant are extended along the normal to the surface. For low pH ~ 2, the thickness of the surface structure consisting of the crystalline monolayer directly on the toluene-water interface and a thick layer of deposited octadecanamide micelles reaches about 50 nm. In our opinion, the condensation of nonionogenic surfactant micelles for which the surface concentration of the surfactant increases significantly is caused by a change in the polarization direction upon a decrease in the pH level in the electric double layer at the interface between the water subphase and the octadecanamide monolayer. The shape of the reconstructed electron density profiles also indicates the existence of a plane of the closest approach of surfactant micelles to the interface at a distance of about 7 nm from it.
description: 8 pages, 6 figures
title: Validation of experimental setup for aerostatic bearing simulation
Creators: name: Miettinen, Mikael
name: Vainio, Valtteri
name: Haverinen, Petteri
name: Leutonen, Onni
name: Viitala, Raine
name: Theska, René
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: Aerostatic bearings are extensively used in precision engineering applications that require high positional accuracy and low friction motion. In these bearings, externally pressurized gas is fed through a restrictor into the bearing gap. The viscous shear in the gap restricts the flow, thus forming a pressurized film between the bearing and the guide surface. In the development of models and in investigations of, for example, effects of manufacturing errors and porous material permeability properties, characterization of bearing performance is required. The performance is commonly characterized with a measurement setup, either under static or dynamic conditions. In the present study, an experimental setup for the measurement performance of aerostatic bearings is presented. The investigated measurement setup is validated with a comparison to a literature model. The results of the present study include the load capacity, stiffness, air consumption, and pressure distribution of a commercially available axisymmetric graphite thrust bearing. The results show good agreement between the measurements and the model. Thus, the results show corroborative evidence on the usability of the measurement setup in future aerostatic bearing research.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
title: Учебно-методическое пособие по дисциплине Сети и системы радиосвязи
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2015

description: Задачей дисциплины «Сети и системы радиосвязи» является изучение принципов построения информационно-телекоммуникационных систем и сетей, видов передаваемых по ним сообщений, методов их передачи и аппаратуры, обеспечивающей эффективную передачу информации.
Carbon Nitrogen, and Oxygen Galactic Gradients: A Solution to the Carbon Enrichment Problem
Creators: name: Carigi, L.
name: Peimbert, M.
name: Esteban, C.
name: Garcia-Rojas, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Eleven models of Galactic chemical evolution, differing in the carbon, nitrogen,and oxygen yields adopted, have been computed to reproduce the Galactic O/H values obtained from H II regions. All the models fit the oxygen gradient, but only two models fit also the carbon gradient, those based on carbon yields that increase with metallicity due to stellar winds in massive stars (MS) and decrease with metallicity due to stellar winds in low and intermediate mass stars (LIMS). The successful models also fit the C/O versus O/H evolution history of the solar vicinity obtained from stellar observations. We also compare the present day N/H gradient and the N/O versus O/H and the C/Fe, N/Fe, O/Fe versus Fe/H evolution histories of the solar vicinity predicted by our two best models with those derived from H II regions and from stellar observations. While our two best models fit the C/H and O/H gradients as well as the C/O versus O/H history, only Model 1 fits well the N/H gradient and the N/O values for metal poor stars but fails to fit the N/H values for metal rich stars. Therefore we conclude that our two best models solve the C enrichment problem, but that further work needs to be done on the N enrichment problem. By adding the C and O production since the Sun was formed predicted by Models 1 and 2 to the observed solar values we find an excellent agreement with the O/H and C/H values of the solar vicinity derived from H II regions O and C recombination lines. One of the most important results of this paper is that the fraction of carbon due to MS and LIMS in the interstellar medium is strongly dependent on time and on the galactocentric distance; at present about half of the carbon in the interstellar medium of the solar vicinity has been produced by MS and half by LIMS.
description: 34 pages, 6 tables, 7 figures. Accepted for publication in ApJ
title: A laser beam deflection system for heat treatments in large scale additive manufacturing
Creators: name: Layher, Michel
name: Bliedtner, Jens
name: Theska, René
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: Large Scale Additive Manufacturing (LSAM) based on plastic raw material is known for high material output and thus, increased productivity. For an improvement of part properties LSAM is combined with a laser process. Depending on the deposition direction, the laser beam needs to be repositioned to reach the space between two adjacent and consecutively printed strands. Therefore, an optomechanical design is required that allows variable orientation of the laser beam. It consists of a combination of an elliptical, tube-like mirror with an additional, rotatable flat mirror in one of its focal axes. The deflected laser beam hits the second focal axis where the extruder nozzle is located. Thus, > 75% of the nozzle circumference is covered during a laser beam treatment. Both mirrors are individually designed custom-made parts. Its functional verification lays the foundation for an improved additive manufacturing process, which aims to homogenize the component structures to improve the mechanical properties of 3D-printed components.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
Orbital Graph Convolutional Neural Network for Material Property Prediction
Creators: name: Karamad, Mohammadreza
name: Magar, Rishikesh
name: Shi, Yuting
name: Siahrostami, Samira
name: Gates, Ian D.
name: Farimani, Amir Barati
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Material representations that are compatible with machine learning models play a key role in developing models that exhibit high accuracy for property prediction. Atomic orbital interactions are one of the important factors that govern the properties of crystalline materials, from which the local chemical environments of atoms is inferred. Therefore, to develop robust machine learningmodels for material properties prediction, it is imperative to include features representing such chemical attributes. Here, we propose the Orbital Graph Convolutional Neural Network (OGCNN), a crystal graph convolutional neural network framework that includes atomic orbital interaction features that learns material properties in a robust way. In addition, we embedded an encoder-decoder network into the OGCNN enabling it to learn important features among basic atomic (elemental features), orbital-orbital interactions, and topological features. We examined the performance of this model on a broad range of crystalline material data to predict different properties. We benchmarked the performance of the OGCNN model with that of: 1) the crystal graph convolutional neural network (CGCNN), 2) other state-of-the-art descriptors for material representations including Many-body Tensor Representation (MBTR) and the Smooth Overlap of Atomic Positions (SOAP), and 3) other conventional regression machine learning algorithms where different crystal featurization methods have been used. We find that OGCNN significantly outperforms them. The OGCNN model with high predictive accuracy can be used to discover new materials among the immense phase and compound spaces of materials
description: 3 figures in main text. 7 figures in SI. Accepted for publication by Physical Review Materials. The template used for the latex has been taken from: https://github.com/brenhinkeller/preprint-template.tex
Local and Regional Food Aid Procurement: An Assessment of Experience in Africa and Elements of Good Donor Practice
Creators: name: Tschirley, David L.
name: Del Castillo, Anne Marie
name: Tschirley, David L.
name: Del Castillo, Anne Marie
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: food security
subject: policy
subject: Zambia
subject: Africa
subject: food aid

description: This report discusses the potential for procurement of food aid in local/regional markets to improve the effectiveness of response to food emergency victims. The paper examines the relevance of local/regional procurement (LRP) to donors and the rationale for using it, reviews LRP’s efficiency relative to in-kind food aid and to local prices in the markets in which it occurs (focusing on Africa), proposes a classification of risks involved in LRP, discusses a range of potential LRP modalities, and closes by proposing a framework of guiding principles, information systems, and operational procedures for responsible and effective LRP.
title: Fabrication of asymmetric multimode splitters in glass by planar ion exchange and laser ablation
Creators: name: Schaeffer, Daniel
name: Klenkert, Daniel
name: Stauch, Julian
name: Kufner, Maria
name: Foerg, Raimund
name: Ebbecke, Jens
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: The fabrication of planar lightwave circuits (PLC) using the laser-ablated ridge waveguide technique is explored. In particular, asymmetric multimode splitter structures are designed and fabricated. The experimental work is accompanied by modeling the relevant parameters. An ion exchange model determines a suitable set of ion exchange duration, temperature, electric field, and ridge geometry. In the simulation, special attention is paid to a good match of the waveguide shape between the PLC components and commercially available GRIN fibers. Wave-optical simulations of the light propagation in the PLC devices are performed using a scalar beam propagation method. Based on the simulation, asymmetric splitter devices are designed for a variety of splitting ratios. A 70:30 splitter is fabricated and attached to optical fibers for characterization. As indicated by a low excess loss, low intrinsic waveguide losses are achieved. The experimental splitting ratio is in good agreement with the simulation.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
transcriptiones – Create, Share and Access Transcriptions of Historical Manuscripts
Creators: name: Fuchs, Yvonne
name: Weber, Dominic
Publisher: name: Zenodo
Year: 2024
Subjects: Transcriptions
Open Research Data
FAIR Data
Crowdsourcing

description: Transcriptions are crucial for historical research but largely inaccessible, leading to redundant work. transcriptiones revolutionizes the access to transcriptions and metadata of historical sources through a collaborative platform, empowering researchers, students, and citizen scientists to contribute. Thus, it takes transcriptions to the age of FAIR and open research data.
title: Учебно-методическое пособие по выполнению курсовой работы по дисциплине Системное программное обеспечение защищенных инфокоммуникационных систем
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2015

description: Курсовая работа студента завершает изучение курса «Системное программное обеспечение защищенных инфокоммуникационных систем».
Deep Learning for Classifying and Characterizing Atmospheric Ducting within the Maritime Setting
Creators: name: Sit, Hilarie
name: Earls, Christopher J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Real-time characterization of refractivity within the marine atmospheric boundary layer can provide valuable information that can potentially be used to mitigate the effects of atmospheric ducting on radar performance. Many duct characterization models are successful at predicting parameters from a specific refractivity profile associated with a given type of duct; however, the ability to classify, and then subsequently characterize, various duct types is an important step towards a more comprehensive prediction model. We introduce a two-step approach using deep learning to differentiate sparsely sampled propagation factor measurements collected under evaporation ducting conditions with those collected under surface-based duct conditions in order to subsequently estimate the appropriate refractivity parameters based on that differentiation. We show that this approach is not only accurate, but also efficient; thus providing a suitable method for real-time applications.
description: 13 pages, 3 figures
Common and domain-specific cognitive characteristics of gifted students : a hierarchical structural model of human abilities
Creators: name: Song, Kwang-Han
Publisher: name: University of British Columbia
Year: 2009

description: The present study identified common and domain-specific characteristics of gifted students through a hierarchical structural model of human abilities that was established through integrating major models of human abilities by a conceptual analysis based on interrelationships between abilities. The proposed common and domain-specific abilities in the major models were identified, compared and evaluated in terms of definitions or functions, and finally connected by interrelationships found between the abilities. The conceptual analysis resulted in a hierarchical structural model of human abilities, which shows two levels of common and domain-specific abilities: activation level and performance level. For the common abilities, there is an ability to find relationships between stimuli on the activation level, an ability to execute cognitive processes, and an ability to reason or process information (or stimuli). The domain-specific abilities consist of three abilities on the activation level and seven abilities on the performance level. The common and domain-specific abilities and observable characteristics of gifted students were conceptually analyzed in terms of interrelationships, and finally common and domain-specific characteristics of gifted students were identified and structured into a hierarchical model of the characteristics of gifted students. The model shows that unusual curiosity (on the activation level), creativity, intensity, comprehension (or learning or understanding), and retentiveness (on the performance level) belong to the common characteristics of gifted students; for the domain-specific characteristics, there are practical-, social-, and ideal-relevant characteristics on the activation level and language-, number-, space-, visual-, auditory-, taste and olfactory-, and tactile-relevant characteristics on the performance level. The implications in theory in terms of the concepts of "intelligence" (i.e., general intelligence or multiple intelligences), "IQ testing" and "rationalistic or empiricist perspective" (i.e., genetic or environmental), and in practice regarding identification of gifted students are described. Research directions for further studies follow.
Anisotropic Diamagnetic Response in Type-II Superconductors with Gap and Fermi-Surface Anisotropies
Creators: name: Adachi, H.
name: Miranović, P.
name: Ichioka, M.
name: Machida, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Effects of anisotropic gap structures on a diamagnetic response are investigated in order to demonstrate that the field-angle-resolved magnetization ($M_L(χ)$) measurement can be used as a spectroscopic method to detect gap structures. Our microscopic calculation based on the quasiclassical Eilenberger formalism reveals that $M_L(χ)$ in a superconductor with four-fold gap displays a four-fold oscillation reflecting the gap and Fermi surface anisotropies, and the sign of this oscillation changes at a field between $H_{c1}$ and $H_{c2}$. As a prototype of unconventional superconductors, magnetization data for borocarbides are also discussed.
description: 5 pages, 4 figures
Doping dependence of the vortex glass and sublimation transitions in the high-$T_{c}$ superconductor La$_{2-x}$Sr$_{x}$CuO$_{4}$ as determined from macroscopic measurements
Creators: name: Gilardi, R.
name: Streule, S.
name: Mesot, J.
name: Momono, N.
name: Oda, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magnetization and ac-susceptibility measurements are used to characterize the mixed phase of the high-temperature cuprate superconductor La$_{2-x}$Sr$_{x}$CuO$_{4}$ over a large range of doping (0.075 $\leq x\leq$ 0.20). The first order vortex lattice phase transition line $H_{FOT}(T)$, the upper critical field $H_{c2}(T)$ and the second peak $H_{sp}(T)$ have been investigated up to high magnetic fields (8 Tesla applied perpendicular to the $CuO_2$ planes). Our results reveal a strong doping dependence of the magnetic phase diagram, which can mainly be explained by the increasing anisotropy with underdoping. Within our interpretation, the first order vortex lattice phase transition is due to the sublimation (rather than melting) of the vortex lattice into a gas of pancake vortices, whereas the second peak is related to the transition to a more disordered vortex glass state.
description: 7 pages, 5 figures
title: Системы обнаружения вторжений в компьютерные сети
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2013

description: В учебном пособии введены основные определения и понятия систем обнаружения вторжений и компьютерных атак. Рассмотрены принципы построения и структура систем обнаружения вторжений. Анализируются способы развертывания, достоинства и недостатки существующих систем обнаружения вторжений.
Normal and Anomalous Averages for Systems with Bose-Einstein Condensate
Creators: name: Yukalov, V. I.
name: Yukalova, E. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The comparative behaviour of normal and anomalous averages as functions of momentum or energy, at different temperatures, is analysed for systems with Bose-Einstein condensate. Three qualitatively distinct temperature regions are revealed: The critical region, where the absolute value of the anomalous average, for the main energy range, is much smaller than the normal average. The region of intermediate temperatures, where the absolute values of the anomalous and normal averages are of the same order. And the region of low temperatures, where the absolute value of the anomalous average, for practically all energies, becomes much larger than the normal average. This shows the importance of the anomalous averages for the intermediate and, especially, for low temperatures, where these anomalous averages cannot be neglected.
description: Latex file, 17 pages, 6 figures
title: Социология
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2011

description: В учебном пособии изложен курс современной социологии. Учебный материал пособия базируется на результатах обобщения множества источников, что позволяет последовательно формировать представление о целях и задачах социологии, социальных структурах и процессах. Учебное пособие предназначено для студентов дневного отделения.
Masses of Doubly Heavy Tetraquarks with Error Bars
Creators: name: Braaten, Eric
name: He, Li-Ping
name: Mohapatra, Abhishek
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the heavy-quark limit, the two heavy quarks in a doubly heavy baryon or a doubly heavy tetraquark are bound by their color-Coulomb potential into a compact diquark. The doubly heavy hadrons are related by the approximate heavy-quark--diquark symmetry of QCD to the heavy hadrons obtained by replacing the heavy diquark by a heavy antiquark. Effective field theories can be used to expand the masses of singly heavy hadrons and doubly heavy hadrons in inverse powers of the heavy quark masses. The coefficients in the expansions for doubly heavy tetraquarks can be determined from those for heavy mesons, heavy baryons, and doubly heavy baryons using heavy-quark--diquark symmetry. We predict the masses of the ground-state doubly heavy tetraquarks with error bars using as inputs the masses of heavy mesons and heavy baryons measured in experiments and the masses of doubly heavy baryons calculated using lattice QCD. The only doubly heavy tetraquarks predicted to be stable with respect to strong decays are $bb$ tetraquarks with light flavor $\bar u \bar d$, $\bar s \bar u$ and $\bar s \bar d$.
description: 28 pages, 7 tables, Minor revisions, published in Phys. Rev. D
Solitons of Sigma Model on Noncommutative Space as Solitons of Electron System
Creators: name: Otsu, H.
name: Sato, T.
name: Ikemori, H.
name: Kitakado, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the relationship of soliton solutions for electron system with those of the sigma model on the noncommutative space, working directly in the operator formalism. We find that some soliton solutions of the sigma model are also the solitons of the electron system and are classified by the same topological numbers.
description: 12 pages, LaTeX2e, improvements to discussions, Version to be published in JHEP
title: Preliminary characterization of anelastic effects in the flexure mechanism for a new Kibble balance at NIST
Creators: name: Keck, Lorenz
name: Seifert, Frank
name: Newell, David
name: Theska, René
name: Haddad, Darine
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: A new Kibble balance is being built at the National Institute of Standards and Technology (NIST). For the first time in one of the highly accurate versions of this type of balance, a single flexure mechanism is used for both modes of operation: the weighing mode and the velocity mode. The mechanism is at the core of the new balance design as it represents a paradigm shift for NIST away from using knife edge-based balance mechanisms, which exhibit hysteresis in the measurement procedure of the weighing mode. Mechanical hysteresis may be a limiting factor in the performance of highly accurate Kibble balances approaching single digit nanonewton repeatability on a nominal 100 g mass, as targeted in this work. Flexure-based mechanisms are known to have very good static hysteresis when used as a null detector. However, for larger and especially longer lasting deformations, flexures are known to exhibit anelastic drift. We seek to characterize, and ideally compensate for, this anelastic behavior after deflections during the velocity mode to enable a 10 accurate Kibble balancemeasurement on a nominal 100 g mass artifact with a single flexure-based balance mechanism.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
Smoothed Particle Magnetohydrodynamics III. Multidimensional tests and the div B = 0 constraint
Creators: name: Price, D. J.
name: Monaghan, J. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In two previous papers (Price & Monaghan 2004a,b) (papers I,II) we have described an algorithm for solving the equations of Magnetohydrodynamics (MHD) using the Smoothed Particle Hydrodynamics (SPH) method. The algorithm uses dissipative terms in order to capture shocks and has been tested on a wide range of one dimensional problems in both adiabatic and isothermal MHD. In this paper we investigate multidimensional aspects of the algorithm, refining many of the aspects considered in papers I and II and paying particular attention to the code's ability to maintain the div B = 0 constraint associated with the magnetic field. In particular we implement a hyperbolic divergence cleaning method recently proposed by Dedner et al. (2002) in combination with the consistent formulation of the MHD equations in the presence of non-zero magnetic divergence derived in papers I and II. Various projection methods for maintaining the divergence-free condition are also examined. Finally the algorithm is tested against a wide range of multidimensional problems used to test recent grid-based MHD codes. A particular finding of these tests is that in SPMHD the magnitude of the divergence error is dependent on the number of neighbours used to calculate a particle's properties and only weakly dependent on the total number of particles. Whilst many improvements could still be made to the algorithm, our results suggest that the method is ripe for application to problems of current theoretical interest, such as that of star formation.
description: Here is the latest offering in my quest for a decent SPMHD algorithm. 26 pages, 15 figures, accepted for publication in MNRAS. Version with high res figures available from http://www.astro.ex.ac.uk/people/dprice/pubs/spmhd/spmhdpaper3.pdf
title: Структурированные кабельные системы
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2010

description: Рассмотрены основные положения стандартов, регламентирующих принципы и правила построения структурированных кабельных систем (СКС). Приводятся сведения о компонентах, применяемых при создании СКС: электрических и оптических кабелях, коммутационно-распределительных устройствах, шнурах. Рассмотрены принципы администрирования смонтированных СКС. Предназначается для студентов электротехнических вузов связи специальностей 210401, 210404, 210406 направления 210400.
title: Applying named data networking in mobile ad hoc networks
Creators: name: Perez Aruni, Percy Dante
Publisher: name: University of St Andrews
Year: 2019

description: This thesis presents the Name-based Mobile Ad-hoc Network (nMANET) approach to content distribution that ensure and enables responsible research on applying named data networking protocol in mobile ad-hoc networks. The test framework of the nMANET approach allows reproducibility of experiments and validation of expected results based on analysis of experimental data. The area of application for nMANETs is the distribution of humanitarian information in emergency scenarios. Named-Data Networking (NDN) and ad-hoc mobile communication allow exchange of emergency information in situations where central services such as cellular towers and electric systems are disrupted. The implemented prototype enables researchers to reproduce experiments on content distribution that consider constraints on mobile resources, such as the remaining power of mobile devices and available network bandwidth. The nMANET framework validates a set of experiments by measuring network traffic and energy consumption from both real mobile devices and those in a simulated environment. Additionally, this thesis presents results from experiments in which the nMANET forwarding strategies and traditional wireless services, such as hotpost, are analysed and compared. This experimental data represents the evidence that supports and validates the methodology presented in this thesis. The design and implementation of an nMANET prototype, the Java NDN Forwarder Daemon (JNFD) is presented as a testing framework, which follows the principles of continuous integration, continuous testing and continuous deployment. This testing framework is used to validate JNFD and IP-based technologies, such as HTTP in a MANET using the OLSR routing protocol, as well as traditional wireless infrastructure mode wireless. The set of experiments executed, in a small network of Android smart-phones connected in ad-hoc mode and in a virtual ad-hoc network simulator show the advantages of reproducibility using nMANET features. JNFD is open source, all experiments are scripted, they are repeatable and scalable. Additionally, JNFD utilises real GPS traces to simulate mobility of nodes during experiments. This thesis provides experimental evidence to show that nMANET allows reproducibility and validation of a wide range of future experiments applying NDN on MANETs.
title: Технико-экономическое обоснование выпускных квалификационных работ
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2011

description: В учебном пособии рассматриваются методологические принципы и приемы технико-экономического обоснования проектируемых решений в области оборудования, систем, сетей электрической связи, телерадиовещания, модернизации и информатизации производственных процессов, внедрения инфокоммуникационных технологий и программного обеспечения; приводятся методики и примеры расчетов показателей оценки экономической эффективности и целесообразности выбора научно-технических решений, содержащихся в выпускных квалификационных работах. Пособие предназначено для студентов направлений «Телекоммуникации», «Инфокоммуникационные технологии и системы связи» технических факультетов МТУСИ.
Random graph model with power-law distributed triangle subgraphs
Creators: name: Sergi, Danilo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Clustering is well-known to play a prominent role in the description and understanding of complex networks, and a large spectrum of tools and ideas have been introduced to this end. In particular, it has been recognized that the abundance of small subgraphs is important. Here, we study the arrangement of triangles in a model for scale-free random graphs and determine the asymptotic behavior of the clustering coefficient, the average number of triangles, as well as the number of triangles attached to the vertex of maximum degree. We prove that triangles are power-law distributed among vertices and characterized by both vertex and edge coagulation when the degree exponent satisfies $2
description: 4 pages, 2 figure; v2: major conceptual changes
Supervised learning from noisy observations: Combining machine-learning techniques with data assimilation
Creators: name: Gottwald, Georg A.
name: Reich, Sebastian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (cs.LG)
subject: Computational Physics (physics.comp-ph)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Data-driven prediction and physics-agnostic machine-learning methods have attracted increased interest in recent years achieving forecast horizons going well beyond those to be expected for chaotic dynamical systems. In a separate strand of research data-assimilation has been successfully used to optimally combine forecast models and their inherent uncertainty with incoming noisy observations. The key idea in our work here is to achieve increased forecast capabilities by judiciously combining machine-learning algorithms and data assimilation. We combine the physics-agnostic data-driven approach of random feature maps as a forecast model within an ensemble Kalman filter data assimilation procedure. The machine-learning model is learned sequentially by incorporating incoming noisy observations. We show that the obtained forecast model has remarkably good forecast skill while being computationally cheap once trained. Going beyond the task of forecasting, we show that our method can be used to generate reliable ensembles for probabilistic forecasting as well as to learn effective model closure in multi-scale systems.
Additional file 1 of Comparative analyses of DNA repeats and identification of a novel Fesreba centromeric element in fescues and ryegrasses
Creators: name: Zwyrtková, Jana
name: Alžběta Němečková
name: Čížková, Jana
name: Kateřina Holušová
name: Kapustová, Veronika
name: Svačina, Radim
name: Kopecký, David
name: Till, Bradley John
name: Doležel, Jaroslav
name: Hřibová, Eva
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. List of clusters containing putative tandem repeats identified in Festuca and Lolium.
Additional file 2 of Laser capture microdissection coupled mass spectrometry (LCM-MS) for spatially resolved analysis of formalin-fixed and stained human lung tissues
Creators: name: Herrera, Jeremy A.
name: Mallikarjun, Venkatesh
name: Rosini, Silvia
name: Montero, Maria Angeles
name: Lawless, Craig
name: Warwood, Stacey
name: O’Cualain, Ronan
name: Knight, David
name: Schwartz, Martin A.
name: Swift, Joe
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: 60506 Virology

description: Additional file 2: Table S1. ECM constituents shared between morphologically normal alveoli and blood vessels.
Patient characteristics in Behçet’s Syndrome and their associations with major organ involvement: a single-centre experience of 2118 cases
Creators: name: Torgutalp, M
name: Eroğlu, DŞ
name: Sezer, S
name: Yayla, ME
name: Karataş, G
name: Özel, EM
name: Dinçer, ABK
name: Yüksel, ML
name: Gülöksüz, EGA
name: Yılmaz, R
name: Turgay, TM
name: Kınıklı, G
name: Ateş, A
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Objectives: To evaluate the demographic and clinical characteristics of patients with Behçet’s syndrome (BS), and to define their associations with the presence of major organ involvement (MOI). Method: Medical records of 2118 patients (964 males, 1154 females) were analysed retrospectively. MOI was defined as the presence of at least one of vascular, eye, nervous, or gastrointestinal system involvement. Univariable and multivariable binary and ordinal logistic regression analyses were applied to assess the factors that were potentially associated with MOI. Results: The mean ± sd age at diagnosis was 30.5 ± 9.4 years. Genital ulcer and joint involvement were more common in females (both p Conclusion: Male gender and positive smoking history have a significant influence on the presence of MOI in patients with BS.
title: Aerostatic bearing for large rotor
Creators: name: Vainio, Valtteri
name: Majuri, Jaakko
name: Haverinen, Petteri
name: Miettinen, Mikael
name: Viitala, Raine
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: In cardboard and paper manufacturing, the paper web is handled with large scale rolls. From the machine design point of view, those rolls are large rotors with high stiffness, accuracy and balance requirements. In paper machines, the rotors not only guide the web but also are used to perform different treatments for the manufactured product. In the cases where highest load and straightness is required, deflection compensated rolls are applied. Commonly, deflection compensated paper machine rolls consist of stationary axle in the middle of the roll and hydrostatically supported rotating shell. Main downside of the traditional deflection compensated roll is high energy consumption. High friction occurs in the hydrostatic system supporting the rotating shell. In this research, test device was built to perform conceptual investigation of suitability of aerostatic bearings to be applied in the deflection compensated rolls. Porous material aerostatic bearing was built in concave shape to interact with the shell of a roll. The bearing design was a combination of a bearing and a sealed chamber restricted with the bearing itself from the ambient. Air consumption, load and drive motor current were measured at various rotating speeds. The results of the research show the performance of the investigated bearing at various operating parameters, from which the point of highest performance can be determined. The results suggest that the porous material based aerostatic bearings as a technology is feasible to be applied in the deflection compensation systems. The validation of the feasibility of the concept of the aerostatic deflection compensation enables further investigations into optimizing the performance of the system for widespread utilisation.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
Influence of Homeotropic Anchoring Walls upon Nematic and Smectic Phases
Creators: name: Torikai, Masashi
name: Yamashita, Mamoru
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: McMillan liquid crystal model sandwiched between strong homeotropic anchoring walls is studied. Phase transitions between isotropic, nematic, and smectic A phases are investigated for wide ranges of an interaction parameter and of the system thickness. It is confirmed that the anchoring walls induce an increase in transition temperatures, dissappearance of phase transitions, and an appearance of non-spontaneous nematic phase. The similarity between influence of anchoring walls and that of external fields is discussed.
description: 5 pages, 6 figures
Adoption and Impacts of Zero-Tillage in the Rice-Wheat Zone of Irrigated Haryana, India
Creators: name: Erenstein, Olaf
name: Malik, R.K.
name: Singh, Sher
name: Erenstein, Olaf
name: Malik, R.K.
name: Singh, Sher
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: Wheat
subject: Rice
subject: Agricultural development
subject: Innovation adoption
subject: Drilling equipment
subject: Farming systems
subject: Zero tillage
subject: Production costs
subject: Credit
subject: Income
subject: India

description: This study documents the adoption and impacts of zero-tillage (ZT) wheat in the rice-wheat systems of India’s Haryana State primarily drawing on a detailed empirical survey of 400 rice-wheat farmers. Our random stratified sample revealed 34.5% to be ZT wheat adopters and a quarter of the wheat area in the surveyed communities to be under ZT. The study suggests the potential for further diffusion but also flags the issue of disadoption (10%). ZT adopters, non-adopters, and disadopters differ significantly in terms of their resource bases, with adopters typically showing the most favorable values. ZT drastically reduces tractor operations in farmers’ ZT wheat fields from an average of 8 passes to a single pass, implying a saving of 6 tractor hours and 36 liters of diesel per hectare. At 4.4 tons per hectare, ZT achieved the highest wheat yields in the survey year, a significant 4.0% yield increase over conventional tillage. The higher yield and lower water use resulted in significantly higher water productivity indicators for ZT wheat. ZT did not have any significant spillover effect on the subsequent rice crop. The combination of a significant “yield effect” and “cost-saving effect” makes ZT adoption worthwhile and is the driving force behind its rapid spread and widespread acceptance, providing a much needed boost to economic returns to wheat cultivation. Based on these findings, the study provides a number of recommendations for research and development in Haryana’s rice-wheat systems.
Constraining the final merger of contact binary(486958) Arrokoth with soft-sphere discrete element simulations
Creators: name: Marohnic, J. C.
name: Richardson, D. C.
name: McKinnon, W. B.
name: Agrusa, H. F.
name: DeMartini, J. V.
name: Cheng, A. F.
name: Stern, S. A.
name: Olkin, C. B.
name: Weaver, H. A.
name: Spencer, J. R.
name: team, the New Horizons Science
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The New Horizons mission has returned stunning images of the bilobate Kuiper belt object (486958) Arrokoth. It is a contact binary, formed from two intact and relatively undisturbed predecessor objects joined by a narrow contact region. We use a version of pkdgrav, an N-body code that allows for soft-sphere collisions between particles, to model a variety of possible merger scenarios with the aim of constraining how Arrokoth may have evolved from two Kuiper belt objects into its current contact binary configuration. We find that the impact must have been quite slow (less than 5 m/s) and grazing (impact angles greater than 75 degrees) in order to leave intact lobes after the merger, in the case that both progenitor objects were rubble piles. A gentle contact between two bodies in a close synchronous orbit seems most plausible.
description: 34 pages, 9 figures