bluuebunny/crossref_metadata_2025_split huggingface dataset:
Wheel vehicle dynamics real-time simulation for on-board stand-alone moving control system realization
Authors: Buzunov N V , Kotiev G O , Padalkin B V 
Published: June 2019

Abstract
The main problem of design on-board stand-alone moving control system is necessity of prototype object during all design stages. The real-time simulation models of wheel vehicle dynamics help to cope with such difficulties. These models must be similar to real wheel vehicle object sufficiently. The research describes the order of creation real-time simulation models of wheel vehicle dynamics using implicit numerical implementation method with application of higher order derivatives for solving differential equations system. Also the verification and proof of adequacy method is presented. It is noticed that the created real-time model corresponds to physical wheel vehicle object if the solving step of numerical implementation method no more than 0.001 second. Such real-time models can be used for design on-board stand-alone moving control systems.
Simulation of the tire enveloping properties in case of the unmanned car wheel interaction with a rigid uneven surface
Authors: Levenkov Y Y , Vol’skaya N S , Rusanov O A 
Published: June 2019

Abstract
A computational and experimental method is presented for assessing the influence of the roughness of a rigid surface on the stiffness and damping properties of automobile tires. The method is based on the solution of tire-ground contact problem using finite-element analysis. In the paper, the influence of two types of irregularities (peaks and pits), their size and shape and tire air pressure on tire enveloping properties is analyzed.
Study of the optimal reinforcing structure of the compressor wheel from composition material of the transport turbocharged engine
Authors: Fomin V M , Apelinskiy D V , Netrusov A N 
Published: June 2019

AbstractThe purpose of the study was to find the optimal configuration of the main parameters of the reinforcing layer of a compressor wheel made of composite material. The optimization problem for an anisotropic system was solved using the Gauss-Seidel method. According to the results of calculations, it was established that under the condition of preserving the strength of the wheel, there is the possibility of transition to reinforcing layers in which the fibers are oriented only in the circumferential direction, which makes it possible to significantly simplify the technology of its manufacture. The use of reinforcement for compressor wheels made of composite material can significantly reduce its mass and polar moment of inertia, which contributes to the improvement of strength and performance of the turbocharger and the engine as a whole.
Coal industry in Czech Republic
Authors: Cablik V , Hlavata M , Janakova I , Tora B 
Published: June 2019

Abstract
Coal reserved in Czech Republic are estimated to be 10 billion tones – bituminous coal about 37%, brown coal about 60% and lignite 3%. Bituminous coal is produced in Northern Moravia – in 2017 production of bituminous coal was 5.5 milion tons. Brown coal is mined in Nord-Wester Bohemia − production of brown coal in 2017 was 38.1 milion tons. Significant quantities of bituminous coal are exported to Slovakia, Austria, Germany and Hungary. In accordance with the National Energy Policy, coal will remain the main source of energy in the country in the future, despite the increased use of nuclear energy and natural gas. The government expects that in 2030 energy from coal will account for 30.5% of energy produced. There are five coal companies in the Czech Republic: OKD, a.s., the only bituminous coal producer and four brown coal mining companies: Severočeské doly a.s., owned by ČEZ, the largest producer of brown coal, Vršanská uhelná a.s., with coal resources until 2055, Severní energetická a.s. with the largest brown coal reserves in the Czech Republic and Sokolovska uhelná a.s., the smallest mining company extracting lignite. OKD operates coal in two mines Důlní závod 1 – (consists of three mines: ČSA Mine, Lazy Mine, Darkov Mine) and Mine Důlní závod 2 (two mines Sever, Jih). The article also presents a pro-ecological solution for the management of waste heaps after coal enrichment - a plant for the enrichment of coal waste from the Heřmanice heap.
Remediation and revitalisation of industrial areas - a method of promotion
Authors: Biegańska J 
Published: June 2019

Abstract
Mining and industrial activity causes adverse changes in the environment. The shift from industrial to post-industrial society has shaped the appearance of degraded areas. In a post-industrial society, there is a lower demand for production capabilities and higher for services, consumption and recreation. This study discusses projects involving the remediation and revitalisation of post-industrial post-mining areas.
Coal Images Database and Its Application for Selected Coal Grains Properties Analysis
Authors: Iwaszenko S , Róg L 
Published: June 2019

Abstract
The raw materials processing methods play important role in excavation industry. The area is nowadays a target for novel, innovative technology application. One of them is an image processing as an instrument for determination of different material properties. The paper proposes a tool – database system – dedicated for supporting images processing and computer vision methods application in the mining industry. The idea and implementation of the system is presented. The database was supplied with a set of coal images. The images were taken at a special stand, with the calibrated camera. The usefulness of system was tested by application of a pipeline of image processing algorithms. The goal was to estimate the grain size composition of coal and rock matter presented on images. Two algorithms for edges detection were tested: Sobel filter and Statistical Dominance Algorithm. After edges detection, a set of morphological operations were applied of determination of good starting markers for the watershed algorithm. The result showed that both algorithms tend to produce over segmented images. However, SDA performed noticeably better. The experiments proved the usefulness of developed database system dedicated to image processing.
Integration of a selected district heating system with an installation for cogasification of coal and biomass
Authors: Iluk T , Sobolewski A , Szul M , Billig T 
Published: June 2019

Abstract
The article presents a topic related to generation of heat and power in small and medium size coal power units which are able to comply with the emission benchmark of 550 g of CO2/kWh through utilization of biomass. The concept for coal and biomass cogasification installation is based on GazEla reactor, which has been developed by Institute for Chemical Processing of Coal. Authors also present a discussion on issues related to technological scheme of the gasification unit which has been integrated with a selected district heating system. The system has been set up for generation of hot technological water and electrical power. Focal point of the installation is a fixed bed gasification reactor. For the system to provide means enabling cogeneration of heat and power, downstream from the generator a high-temperature gas dedusting system, a unit for recovery of heat from process gas coupled with separation of tar contaminants as well as a gas engine were proposed. A sorted chart presenting historical data for annual demand for heat together with the most important assumptions used during the analyses are discussed. Finally authors present results of calculations for the integrated unit that are further broadened by sensitivity analyses for change of gasification reactor’s efficiency, as well as engine’s efficiency for heat and power generation.
Review of technologies for low-quality solid fuel gasification
Authors: Lutyński A , Lutyński M 
Published: June 2019

Abstract
The article discusses World’s current status of surface coal and other resources gasification technology. Examples of existing and planned gasification plants efficiencies up to the year 2022 along with the use of syngas for chemical resources production and distribution of plants are given. The SGT (SES Gasification Technology) gasification technology where produced syngas is used for energy production is described.
Underground coal mine workings as potential places for Compressed Air Energy Storage
Authors: Lutyński M , Bartela Ł , Smolnik G , Waniczek S 
Published: June 2019

Abstract
The article gives a brief overview of current developments and projects of Compressed Air Energy Storage (CAES). Typical CAES configurations such as Adiabatic CAES and Diabatic CAES are described. The concept of air storage in isolated workings of closed coal mine is presented taking into account availability of such places in the Silesian Coal Basin of southern Poland. The article also discusses major challenges of such concept such as insulation of underground workings, geomechanical stability of workings and site availability. As a proof of concept examples of underground coal mines converted into natural gas storage sites are given. Types of underground workings that could serve as a part of potential compressed storage site are listed and an example of volume calculation available in coal mine for storage is given.
Utilization of methane deposits from the liquidated mines in the aspect of environmentally friendly energy technologies
Authors: Trenczek S , Krause E 
Published: June 2019

Abstract
At the beginning of the article main factors occurring in polluted atmospheric air and their connection with the methods of energy production are discussed. Various energy sources in the aspect of energy production technologies, including primary energy sources are presented. Two main actions taken to improve the quality of atmospheric air in Poland are described: Clean Air Programme, assuming a subsidy for an exchange of individually-used coal boilers for ecological ones or for gas heating, and the Polish Energy Policy until 2040, which assumes a gradual reduction in the share of hard coal and lignite in energy production. Methane as a mineral accompanying coal seams as well as ways of its recognition and management are presented. An example of the conducted research project shows a significance of the resource recognition and dynamics of the deposit in planning an economically justified exploitation of the deposit from closed down mines. Finally, there is hope that due to a further process of efficient restructuring of the Polish mining industry, the importance of using methane from closed down mines as a green energy source will increase.
Genetic Testing in the Diagnosis and Biology of Acute Leukemia
Authors: Harris Marian H , Czuchlewski David R , Arber Daniel A , Czader Magdalena 
Published: June 2019

AbstractObjectivesThe 2017 Workshop of the Society for Hematopathology/European Association for Haematopathology examined the role of molecular genetics in the diagnosis and biology of acute leukemia.MethodsAcute leukemias were reviewed in two sessions: “Genetic Testing in Diagnosis of Acute Leukemias” (53 cases) and “Genetics Revealing the Biology of Acute Leukemias” (41 cases).ResultsCases included acute lymphoblastic leukemia, acute myeloid leukemia, and acute leukemia of ambiguous lineage. Many cases demonstrated genetic alterations of known diagnostic, prognostic, and/or therapeutic significance, while others exhibited alterations that illuminated disease biology. The workshop highlighted the complexity of acute leukemia diagnosis and follow-up, while illustrating advantages and pitfalls of molecular genetic testing.ConclusionsOur understanding of the molecular genetics of acute leukemias continues to grow rapidly. Awareness of the potential complexity of genetic architecture and environment is critical and emphasizes the importance of integrating clinical information with morphologic, immunophenotypic, and molecular genetic evaluation.
Focal mechanism and stress field in the northeastern Tibetan Plateau: insight into layered crustal deformations
Authors: Han Cunrui , Huang Zhouchuan , Xu Mingjie , Wang Liangshu , Mi Ning , Yu Dayong , Li Hua 
Published: June 2019

SUMMARYFocal mechanism solutions (FMSs) reflect the stress field underground directly. They provide essential clue for crustal deformations and therefore improve our understanding of tectonic uplift and expansion of the Tibetan Plateau. In this study, we applied generalized Cut and Paste and P-wave first-motion methods to determine 334 FMSs (2.0 ≤ Mw ≤ 6.4) with the data recorded by a new temporary network deployed in the NE Tibetan Plateau by ChinArray project. We then used 1015 FMSs (including 681 published FMSs) to calculate the regional stress field with a damped linear inversion. The results suggest dominant thrust and strike-slip faulting environments in the NE Tibetan Plateau. From the Qilian thrust belt to the Qinling orogen, the maximum horizontal stress orientations (${S_\mathrm{ H}}$) rotate clockwise from NNE to NE, and further to EW, showing a fan-shaped pattern. The derived minimum horizontal stress orientations (${S_\mathrm{ h}}$) are parallel to the aligned fabrics in the mantle lithosphere indicated by shear wave splitting measurements, suggesting vertically coherent deformation in the NE Tibetan Plateau. Beneath the SW Qinling adjacent to the plateau, however, the stress orientations in the shallow and deep crust are different, whereas the deep crustal stress field indicates possible ductile crustal flow or shear.
Recreation centre managers’ perceptions of pricing interventions to promote healthy eating
Authors: Huse Oliver , Zorbas Christina , Jerebine Alethea , Kurzeme Ari , Blake Miranda , Ferguson Megan , Palermo Claire , Peeters Anna , Orellana Liliana , Brimblecombe Julie , Moodie Marj , Backholer Kathryn 
Published: June 2019

Abstract
Retailers have the capacity to improve the food and beverage environment by making healthier options more affordable and attractive for their consumers. The perspectives of retailers on feasible and acceptable pricing strategies are not known. The aim of this study was to understand retailers’ perceptions of factors that are relevant to feasible and acceptable health-promoting food and beverage pricing interventions. A convenience sample of 11 aquatic and recreation centre managers in Victoria, Australia was recruited to participate in semi-structured interviews. We took a pragmatic approach with the aim of understanding retailers’ perceptions of factors that affect the feasibility and acceptability of pricing interventions within their facilities. Thematic analysis was used to synthesize and interpret retailers’ perceptions of pricing interventions. Key themes identified were: structural and organizational characteristics (the internal and external characteristics of aquatic and recreation centres), characteristics of feasible pricing changes (type, magnitude and products targeted by pricing strategies) and business outcomes (profits and customer feedback). Results suggest that pricing interventions to promote healthy food and beverage choices can be feasible and acceptable to retailers, though contextual considerations are likely to be important. Future studies should use these findings to design interventions most likely to be acceptable to retailers, work with retailers to implement health-promoting food and beverage pricing interventions, evaluate the impact on business outcomes including customer perspectives and profitability, and test transferability to other retail settings.
A mouse model of Proteus syndrome
Authors: Lindhurst Marjorie J , Brinster Lauren R , Kondolf Hannah C , Shwetar Jasmine J , Yourick Miranda R , Shiferaw Henoke , Keppler-Noreuil Kim M , Elliot Gene , Rivas Cecilia , Garrett Lisa , Gomez-Rodriguez Julio , Sebire Neil J , Hewitt Stephen M , Schwartzberg Pamela L , Biesecker Leslie G 
Published: June 2019

Abstract
Proteus syndrome is a mosaic, progressive overgrowth disorder caused by a somatic activating variant c.49G > A p.(E17K) in AKT1. The presentation in affected individuals is variable, with a diversity of tissues demonstrating abnormalities. Common manifestations include skin and bony overgrowth, vascular malformations (VMs), cysts and benign tumors. We used two methods to create mouse models that had endogenously-regulated mosaic expression of the Proteus syndrome variant. Variant allele fractions (VAFs) ranged from 0% to 50% across numerous tissues in 44 Proteus syndrome mice. Mice were phenotypically heterogeneous with lesions rarely observed before 12 months of age. VMs were the most frequent finding with a total of 69 found in 29 of 44 Proteus syndrome mice. Twenty-eight cysts and ectasia, frequently biliary, were seen in 22 of 44 Proteus syndrome mice. Varying levels of mammary hyperplasia were seen in 10 of 16 female Proteus syndrome mice with other localized regions of hyperplasia and stromal expansion noted in several additional animals. Interestingly, 27 of 31 Proteus syndrome animals had non-zero blood VAF that is in contrast to the human disorder where it is rarely seen in peripheral blood. Identification of variant-positive cells by green fluorescent protein (GFP) staining in chimeric Proteus syndrome mice showed that in some lesions, hyperplastic cells were predominantly GFP/Akt1E17K-positive and showed increased pAKT signal compared to GFP-negative cells. However, hyperplastic mammary epithelium was a mixture of GFP/Akt1E17K-positive and negative cells with some GFP/Akt1E17K-negative cells also having increased pAKT signal suggesting that the variant-positive cells can induce lesion formation in a non-cell autonomous manner.
Hippocampal Subfields in Acute and Remitted Depression—an Ultra-High Field Magnetic Resonance Imaging Study
Authors: Kraus Christoph , Seiger Rene , Pfabigan Daniela M , Sladky Ronald , Tik Martin , Paul Katharina , Woletz Michael , Gryglewski Gregor , Vanicek Thomas , Komorowski Arkadiusz , Kasper Siegfried , Lamm Claus , Windischberger Christian , Lanzenberger Rupert 
Published: June 2019

AbstractBackgroundStudies investigating hippocampal volume changes after treatment with serotonergic antidepressants in patients with major depressive disorder yielded inconsistent results, and effects on hippocampal subfields are unclear.MethodsTo detail treatment effects on total hippocampal and subfield volumes, we conducted an open-label study with escitalopram followed by venlafaxine upon nonresponse in 20 unmedicated patients with major depressive disorder. Before and after 12 weeks treatment, we measured total hippocampal formation volumes and subfield volumes with ultra-high field (7 Tesla), T1-weighted, structural magnetic resonance imaging, and FreeSurfer. Twenty-eight remitted patients and 22 healthy subjects were included as controls. We hypothesized to detect increased volumes after treatment in major depressive disorder.ResultsWe did not detect treatment-related changes of total hippocampal or subfield volumes in patients with major depressive disorder. Secondary results indicated that the control group of untreated, stable remitted patients, compared with healthy controls, had larger volumes of the right hippocampal-amygdaloid transition area and right fissure at both measurement time points. Depressed patients exhibited larger volumes of the right subiculum compared with healthy controls at MRI-2. Exploratory data analyses indicated lower baseline volumes in the subgroup of remitting (n = 10) vs nonremitting (n = 10) acute patients.ConclusionsThe results demonstrate that monoaminergic antidepressant treatment in major depressive disorder patients was not associated with volume changes in hippocampal subfields. Studies with larger sample sizes to detect smaller effects as well as other imaging modalities are needed to further assess the impact of antidepressant treatment on hippocampal subfields.
Spaces of Abelian Differentials and Hitchin’s Spectral Covers
Authors: Bertola M , Korotkin D 
Published: June 2019

Abstract
Using the embedding of the moduli space of generalized $GL(n)$ Hitchin’s spectral covers to the moduli space of meromorphic Abelian differentials we study the variational formulæ of the period matrix, the canonical bidifferential, the prime form and the Bergman tau function. This leads to residue formulæ which generalize the Donagi–Markman formula for variations of the period matrix. The computation of second derivatives of the period matrix reproduces the formula derived in [2] using the framework of topological recursion.
Association Between Single-Nucleotide Polymorphisms in HLA Alleles and Human Immunodeficiency Virus Type 1 Viral Load in Demographically Diverse, Antiretroviral Therapy–Naive Participants From the Strategic Timing of AntiRetroviral Treatment Trial
Authors: Ekenberg Christina , Tang Man-Hung , Zucco Adrian G , Murray Daniel D , MacPherson Cameron Ross , Hu Xiaojun , Sherman Brad T , Losso Marcelo H , Wood Robin , Paredes Roger , Molina Jean-Michel , Helleberg Marie , Jina Nureen , Kityo Cissy M , Florence Eric , Polizzotto Mark N , Neaton James D , Lane H Clifford , Lundgren Jens D 
Published: June 2019

AbstractThe impact of variation in host genetics on replication of human immunodeficiency virus type 1 (HIV-1) in demographically diverse populations remains uncertain. In the current study, we performed a genome-wide screen for associations of single-nucleotide polymorphisms (SNPs) to viral load (VL) in antiretroviral therapy–naive participants (n = 2440) with varying demographics from the Strategic Timing of AntiRetroviral Treatment (START) trial. Associations were assessed using genotypic data generated by a customized SNP array, imputed HLA alleles, and multiple linear regression. Genome-wide significant associations between SNPs and VL were observed in the major histocompatibility complex class I region (MHC I), with effect sizes ranging between 0.14 and 0.39 log10 VL (copies/mL). Supporting the SNP findings, we identified several HLA alleles significantly associated with VL, extending prior observations that the (MHC I) is a major host determinant of HIV-1 control with shared genetic variants across diverse populations and underscoring the limitations of genome-wide association studies as being merely a screening tool.