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Why Open Government Data? The Case of a Swedish Municipality

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Journal of Data and Information Science 2021年第1期6卷 120-138页

作者： Koraljka golub Arwid Lund Linnaeus University 35195 VäxjöSweden Södertörn University 14189 HuddingeStockholmSweden

Purpose: The purpose of this exploratory study is to provide modern local governments with potential use cases for their open data, in order to help inform related future policies and decision-making. The concrete context was that of the vaxjo municipality located in southeastern ***/methodology/approach: The methodology was two-fold: 1) a survey of potential end users(n=151) from a local university;and, 2) analysis of survey results using a theoretical model regarding local strategies for implementing open government ***: Most datasets predicted to be useful were on: sustainability and environment;preschool and school;municipality and politics. The use context given is primarily research and development, informing policies and decision making;but also education, informing personal choices, informing citizens and creating services based on open data. Not the least, the need for educating target user groups on data literacy emerged. A tentative pattern comprising a technical perspective on open data and a social perspective on open government was identified. Research limitations: In line with available funding, the nature of the study was exploratory and implemented as an anonymous web-based survey of employees and students at the local university. Further research involving(qualitative) surveys with all stakeholders would allow for creating a more complete picture of the matter. Practical implications: The study determines potential use cases and use contexts for open government data, in order to help inform related future policies and ***/value: Modern local governments, and especially in Sweden, are faced with a challenge of how to make their data open, how to learn about which types of data will be most relevant for their end users and what will be different societal purposes. The paper contributes to knowledge that modern local governments can resort to when it comes to attitudes of local citizens to open government da

关键词： Open data E-government Open government

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Effects of Heavy Metal Ions (Fe3+, Cu2+, Zn2+and Cr3+) on the Productivity of Biogas and Biomethane Production

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Advances in Bioscience and Biotechnology 2022年第1期13卷 1-14页

作者： N. B. golub A. v. Shynkarchuk O. A. Kozlovets M. v. Kozlovets Department of Environmental Biotechnology and Bioenergy Igor Sikorsky KPI Kyiv Ukraine

It was shown that the concentration of heavy metal ions Fe3+, Cu2+, Cr3+ and Zn2+, which are contained in the fermentation medium, affects the process of biogas production. The aim of this paper was to establish the concentration of ions, which makes it possible to increase the yield of biogas and the methane content in it. The total yield of biogas per unit of dry organic matter, methane and the kinetics of changes in the yield of biogas during fermentation of cattle manure in the presence of different concentrations of metal ions in the anaerobic environment. It was established that the content of Fe3+, Cu2+ is up to 80 mg/dm3, Cr3+ and Zn2+ is up to 50 mg/dm3 in the medium lead to increased methane production by anaerobic association of microorganisms due to the effect on the activity of enzyme systems in comparison with the sample without the addition of metal ions. It was found that the rational concentrations to increase the methane yield in the biogas obtained by fermentation of cattle manure are: Fe3+-20 - 40 mg/dm3, Cu2+-40 - 60 mg/dm3, Cr3+-10 mg/dm3. The increase in the concentration of metal ions above rational values leads to a decrease in the methane content in biogas. It was shown that zinc ions have a positive effect on methane production, but reduce the total biogas yield and, accordingly, the degree of conversion of organic raw materials. Therefore, the rational concentration of Zn2+ in the fermentation medium is 10 mg/dm3.

关键词： Heavy Metal Iron Zinc Copper Сhromium Biogas Biomethane

vectorial spin-orbital Hall effect of light upon tight focusing and its experimental observation in azopolymer films

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Opto-Electronic Science 2023年第7期2卷 12-30页

作者： Alexey Porfirev Svetlana Khonina Andrey Ustinov Nikolay Ivliev Ilya golub Image Processing Systems Institute of RAS—Branch of the FSRC"Crystallography and Photonics"RAS Samara 443001Russia School of Advanced Technology Algonquin CollegeOttawaOntario K2G 1V8Canada

Hall effect of light is a result of symmetry breaking in spin and/or orbital angular momentum(OAM)possessing optical system and is caused by *** index gradient/interface between media or focusing of a spatially asymmetrical beam,similar to the electric field breaking the symmetry in spin Hall effect for *** angular momentum(AM)conservation law in the ensuing asymmetric system dictates redistribution of spin and orbital angular momentum,and is manifested in spin-orbit,orbit-orbit,and orbit-spin conversions and reorganization,***-orbit and orbit-orbit *** AM restructuring in turn requires shifts of the barycenter of the electric field of *** the present study we show,both analytically and by numerical simulation,how different electric field components are displaced upon tight focusing of an asymmetric light beam having OAM and *** relation between field components shifts and the AM components shifts/redistribution is presented ***,we experimentally demonstrate,for the first time,to the best of our knowledge,the spin-orbit Hall effect of light upon tight focusing in free *** is achieved using azopolymers as a media detecting longitudinal or z component of the electrical field of *** findings elucidate the Hall effect of light and may broaden the spectrum of its applications.

关键词： spin-orbital Hall effect of light symmetry breaking spin-orbit interaction azopolymers optical vortex polarization

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A Spectral Time-Domain Method for Computational Electrodynamics

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Advances in Applied Mathematics and Mechanics 2009年第6期1卷 781-798页

作者： James v.Lambers Department of Mathematics University of Southern MississippiHattiesburgMS 39406-0001 USA

Ever since its introduction by Kane Yee over forty years ago,the finitedifference time-domain(FDTD)method has been a widely-used technique for solving the time-dependent Maxwell’s equations that has also inspired many other *** paper presents an alternative approach to these equations in the case of spatially-varying electric permittivity and/or magnetic permeability,based on Krylov subspace spectral(KSS)*** methods have previously been applied to the variable-coefficient heat equation and wave equation,and have demonstrated high-order accuracy,as well as stability characteristic of implicit timestepping schemes,even though KSS methods are *** methods for scalar equations compute each Fourier coefficient of the solution using techniques developed by golub and Meurant for approximating elements of functions of matrices by Gaussian quadrature in the spectral,rather than physical,*** show how they can be generalized to coupled systems of equations,such as Maxwell’s equations,by choosing appropriate basis functions that,while induced by this coupling,still allow efficient and robust computation of the Fourier coefficients of each spatial component of the electric and magnetic *** also discuss the application of block KSS methods to problems involving non-self-adjoint spatial differential operators,which requires a generalization of the block Lanczos algorithm of golub and Underwood to unsymmetric matrices.

关键词： Spectral methods Gaussian quadrature block Lanczos method Maxwell’s equations

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生产1K以下温度的连续吸附制冷机

低温与超导 1975年第4期 59-64页

作者： v·P·Babiichuk ,A·A·golub ,B·N·Esel'son ,I·A·Serbin ,郑树湘

本文介绍的是一种蒸发型制冷机,其液体He3或He4上部的蒸汽抽空是通过两个交替工作的吸附泵来实现的。这样最多用10升氦蒸汽就能在较长的时间里使温度保持不变,其准确度达0.003K。它的制冷量也已确定。通过吸附泵和抽气管路使He3循环也... 详细信息

本文介绍的是一种蒸发型制冷机,其液体He3或He4上部的蒸汽抽空是通过两个交替工作的吸附泵来实现的。这样最多用10升氦蒸汽就能在较长的时间里使温度保持不变,其准确度达0.003K。它的制冷量也已确定。通过吸附泵和抽气管路使He3循环也计算出了稀释制冷机的特性（He3的循环率、起动和工作温度）。这个系统表明,在He3的循环率达10-5—10-4克分子/秒时生产极低温是成功的。

关键词：制冷机吸附泵蒸馏器限流器冰机制冷装置真空泵实验室仪器电流限制器稀释制冷

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一种谐振式称重传感器数学模型的建立

仪表技术与传感器 2000年第5期 1-2,12页

作者：张卫民王克勇米.德.格列姆丘克维.维.格鲁布北京理工大学北京市100081 乌克兰基辅国立技术大学精仪系

文中介绍了一种由双平行梁和振弦组成的新型谐振式称重传感器。根据这种传感器的特点 ,重点分析了传感器所称物体重量和振弦所受张力之间的关系。

关键词：谐振式振弦双平行梁称重传感器数学模型

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Nature:研究利用单细胞分析阐明癌症干细胞在脑癌中的关键角色

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现代生物医学进展 2017年第6期17卷 I0003-I0003页

作者： Itay Tirosh, Andrew S. venteicher, Christine Hebert, Leah E. Escalante, Keren Yizhak, Jonathan M. Fisher, Christopher Rodman, Mariella G. Filbin, Cyril Neftel, Jackson Nyman, Benjamin Izar, Joshua M. Francis, Kenneth J. Livak, Dave Gennert, Rahul Satija, Todd R. golub, Miguel N. Rivera, Gad Getz, Orit Rozenblatt-Rosen, Bradley E. Bernstein, Aviv Regev Mario L. Suv agrave Andrew S. venteicher, Christine Hebert, Leah E. Escalante, Keren Yizhak, Mariella G. Filbin, Cyril Neftel, Niyati Desai, Christina C. Luo, Aanand A. Patel, Maristela L. Onozato, Nicolo Riggi, Ravindra Mylvaganam, A. John Iafrate, Matthew P. Frosch, Miguel N. Rivera, Gad Getz, Bradley E. Bernstein, David N. Louis Mario L. Suv agrave Andrew S. venteicher, Anoop P. Patel, Brian v. Nahed, William T. Curry, Robert L. Martuza Daniel P. Cahill Christopher Mount Michelle Monje Mariella G. Filbin Todd R. golub Joshua M. Francis Todd R. golub Aviv Regev Broad Institute of Harvard and MIT Cambridge Massachusetts 02142 USA Department of Pathology and Center for Cancer Research Massachusetts General Hospital and Harvard Medical School Boston Massachusetts 02114 USA Department of Neurosurgery Massachusetts General Hospital and Harvard Medical School Boston Massachusetts 02114 USA Departments of Neurology Neurosurgery Pediatrics and Pathology Stanford University School of Medicine Stanford California 94305 USA Department of Pediatric Oncology Dana-Farber Cancer Institute and Children’s Hospital Cancer Center Boston Massachusetts 02215 USA Department of Medical Oncology Dana-Farber Cancer Institute Boston Massachusetts 02215 USA Howard Hughes Medical Institute Koch Institute Department of Biology MIT Cambridge Massachusetts 02139 USA

近日。来自麻省总医院、博德研究所及哈佛大学的研究人员通过联合研究，在单细胞水平上对脑瘤基因组进行了分析。他们发现。癌症干细胞或许能够诱发少突神经胶质瘤的发生，少突神经胶质瘤是一种缓慢发展但却非常难以治愈的脑癌，相关研... 详细信息

近日。来自麻省总医院、博德研究所及哈佛大学的研究人员通过联合研究，在单细胞水平上对脑瘤基因组进行了分析。他们发现。癌症干细胞或许能够诱发少突神经胶质瘤的发生，少突神经胶质瘤是一种缓慢发展但却非常难以治愈的脑癌，相关研究刊登于Nature杂志上。同时研究者还首次在人类脑瘤样本中鉴别出了癌症干细胞及其分化的后代细胞。

关键词：干细胞单细胞分析癌症脑瘤神经胶质瘤键角利用研究人员