bluuebunny/crossref_metadata_2025 huggingface dataset:
A harci helikopterek túlélőképesség-növelésének lehetőségei
Authors: Nagy László
Published: June 2020

A Zrínyi 2026 Honvédelmi és haderőfejlesztési program olyan mértékű képességfejlesztést tesz lehetővé, amely páratlan a Magyar Honvédség történelmében. 2018-ban a helikopteres kultúra megújulása megkezdődött a könnyű- és közepes, többcélú helikopterek beszerzésével, amely csak akkor válhat teljessé, ha folytatásként a harcihelikopter-képesség fejlesztésére is sor kerül. Ezen eszközök harci hatékonysága és a megfelelő műszaki megbízhatósága mellett a helikoptervezető állomány, valamint maga a harci helikopter sérülékenységének csökkentése kiemelt jelentőséggel bír. A légierő számára leginkább megfelelő típus kiválasztása során elengedhetetlen vizsgálni azon konstrukciós kialakításokat, amelyekkel a harci helikopterek túlélőképessége növelhető.
Pilóta nélküli légi járművek alkalmazásának történelmi pillanatai és ezekből levonható következtetések
Authors: Szalkai László István
Published: June 2020

Egy ország légvédelmének biztosítása folyamatos kihívás elé állítja az ilyen feladatokat ellátó személyeket és szervezeteket. Ennek egyik speciális területe a kis magasságon repülő, kezdetleges, pilóta nélküli légi járművekre telepített robbanóeszközök elleni minden irányú védelem ügye, amely légvédelmi tevékenységként értelmezhető. A cikkben részletesen bemutatom a települési légvédelem szervezésének és kezdeti működésének kérdéseit, történelmi távlatokból vizsgálva és az első alkalmazások kudarcaiból kiindulva, rámutatva azok társadalmi fontosságára. A cikk megírásának alapja a témakörhöz kapcsolódó hazai és nemzetközi szakirodalom tanulmányozása és elemzése, valamint a szerző hadtörténeti témakörben szerzett tapasztalatai. A cikk eredményeként megfogalmazható, hogy az aszimmetrikus hadviselés légitámadásai során bekövetkezett halálesetek és egyéb balesetek a jövőben megelőzhetők lehetnek egy, az egész országra kiterjedő, alapvetően pilóta nélküli légi járművek ellen gyorsreagálású egységként kitelepülő mobil légvédelmi elhárító rendszer kiépítésével.
Overview of the International Radar Symposium Best Papers, 2019, Ulm, Germany
Authors: Balajti István
Published: June 2020

Nowadays, the interference cancellation or mitigation plays a key important role in the effective use of the advanced radar technology. This article is focused on the symposium presentations related to Electromagnetic Spectrum Operations (EMSO) of the radar systems. The modernisation of the Hungarian Army, the success of the Zrínyi 2026 program, basically depends on the understanding and the professional service of new technologies during their lifecycle. In civilian applications, the inter-radar interference of automotive radars is an emerging problem for automotive radar applications in case of dense deployment. Consequently, it is a priority task to gather, evaluate and transfer collected expertise on the advanced research findings and concepts related to emerging sensor technologies. It looks like the permanent engineering/scientific policies should be implemented to monitor and maximise radar performance to support safety measures required within EMSO. The article summarises the most recent results of the radars taking into account the domesticexpectations.
探究市政工程技术的通病与措施
Authors: 王 胜杰
Published: June 2020

市政工程建设的公益性较强,同时市政工程建设是当前城市化建设中的重要部分,对人们的生活有着重要作用,因此市政工程建设的质量影响着人们的日常生活,因此加强市政工程施工管理是保证工程质量的重要措施,因此如何加强市政施工管理保证市政工程的质量,是当前市政工程建设的重要工作。而在市政施工管理工作中,如何改进市场工程技术的通病是当前保证市政建设工作质量的重要内容,虽然市政工程建设施工技术仍在不断的提升,但是由于市政工程自身的特点也使得实施工程技术仍然存在相应的问题,因此要对这些存在问题进行分析研究,提出相应的解决措施,去改善市政工程技术,从而加强市政工程施工的质量,从而推动城市化的高质量建设。
工程测绘中激光雷达测绘技术的应用分析研究
Authors: 何 平
Published: June 2020

当前经济水平的快速提升不断地推动着我国现代化建设进程的建设步伐,因此我国的各项水利工程建设、道路工程建设、城镇化建设、矿区开采项目的数量都有所增加。而人们当前生活质量的提升使得人们逐渐重视相应的安全问题,因此为了保证工程的安全,在各种工程建设中要运用到不可缺少的工程测绘技术从而保证获取的数据信息的准确程度。随着技术的发展,工程测绘技术也不断的完善,使得测绘所测量的数据越来越准确,测绘人员在测量过程中的安全也逐渐得到保障。而当前在激光雷达测绘技术在各种工程中广泛运用,激光雷达测绘技术的测量速度虽然迅速但是同时也能保证测量数据的准确性,同时激光雷达测绘技术还可以在水下进行测绘工作,从而扩展了传统的工程测绘范围,这种充分具有优势的测绘技术,为工程的建设提供了完善的数据,有效的促进了相关工程的建设,保证工程建设的质量,为人们的生活带来便利。
浅析测绘工程中测绘新仪器、新技术的应用
Authors: 杨 尚武
Published: June 2020

我国这几年的经济和科技不断发展,各种各样的测绘新仪器和新技术出现在人们面前。在测绘工程中,为了将工程质量提升,应该根据新仪器、新技术的使用方法,将测绘工程中需要使用的测绘技术进行研究。这样可以将测绘工程的整体质量不断提升,解决之前存在的问题,从而展现出新仪器和新技术的使用价值,可以让测绘工程拥有完善的施工。本文将就测绘工程中使用的测绘新仪器、新技术的重要性和特点展开分析,提出测绘工程中测绘新仪器、新技术的具体应用,希望可以帮助相关人员。
浅析测绘工程测量中无人机遥感技术的运用
Authors: 李 光超
Published: June 2020

随着科学技术不断发展,无人机遥感技术由于自身具有数据信息处理速度快和灵敏度高等优点,所以它在各个领域都得到了一定的应用,特别是在测绘工程中的应用。它在测绘工程测量中的应用,不仅提高了其测量的准确性,还对其中的问题进行了有效地分析。因此,本文对无人机遥感技术在测绘工程测量中的应用进行了分析,希望能够给相关的学者提供帮助。
多媒体辅助教学在小学数学教学中的优势和策略
Authors: 伍 培
Published: June 2020

快速发展的多媒体信息技术，为我国教学工作的顺利开展提供了先进的技术支持。多媒体教学方式，可以将抽象的数学知识以直观且富有趣味性的方式展现出来，降低了学习难度，提升了学习趣味性。本文分析了多媒体辅助教学在小学数学教学中的优势与策略。以期给相关工作者带来借鉴与参考。
探究野生植物保护的意义、现状及管理措施
Authors: 蔺 小慧
Published: June 2020

社会经济的快速发展使得生态环境遭到了破坏,而求由于当时对于生态环境保护的认识不足以及为了促进经济发展大肆开发砍伐树木,导致许多的野生植物资源被破坏,从而又加剧了生态环境问题,如此恶性循环,生态环境愈发恶劣,导致了野生植物的生存环境更加困难,使得有大部分野生植物的种类和数量迅速降低,甚至濒临灭绝。这种现象需要人们急切的认识到坚决环境问题、保护生态环境的重要性,从而增强对野生植物保护的重视程度,加强对野生植物的保护措施,保护生物多样性,推动生态环境的恢复、建设,从而促进人们的生存环境质量的提升。
市政园林工程施工管理研究
Authors: 杨 洁
Published: June 2020

市政园林工程是城市建设的重要组成部分,对于城市绿化建设和改善人们的生活环境发挥着重要的作用。随着人们生活水平的不断提高,对于市政园林工程的要求也越来越高,因此,对于市政园林施工管理中出现的各种问题,需要尽快得到解决。本文主要从市政园林工程建设的实际情况出发,分析了施工管理中存在的问题,并针对这些问题提出了一些解决措施,以期更好的促进市政园林工程的施工管理,希望能为同行提供一些参考。
Controle interno municipal como ferramenta de planejamento e acompanhamento da Gestão do Município de Santo Antônio de Pádua/RJ
Authors: Mello Carla Berenice Eiras de Oliveira , Ramada Maria Lilian Eiras de Oliveira , Silva Valéria Pereira da
Published: June 2020

O presente artigo teve por objetivo analisar os meios utilizados pela Prefeitura Municipal de Santo Antônio de Pádua para realizar o seu controle interno e externo. Esse controle é entendido como uma ferramenta crucial para o planejamento e acompanhamento da gestão municipal. De modo a atingir o objetivo proposto, foi realizada uma pesquisa com o Controlador Geral do município de Santo Antônio de Pádua, que é um município composto com menos de cinquenta mil habitantes, localizado no interior do Estado do Rio de Janeiro. Os principais resultados da presente pesquisa indicaram que o sistema utilizado para controle interno alinha-se ao recomendado pela literatura relacionada, sobretudo o que tange a lei orgânica do município. Constatou-se, ainda, que algumas limitações têm apontado, aos gestores municipais, os erros em termos de controle. Assim, o estudo propõe algumas soluções para otimizar o controle dessa gestão. Verificou-se, também, que os gestores possuem autonomia para desenvolver suas atividades e, dessa forma, ajuda o poder executivo a desempenhar suas atividades com mais efetividade, maior eficiência e eficácia servindo, portanto, como uma ferramenta indispensável para o planejamento e acompanhamento da gestão municipal de Santo Antônio de Pádua.
Ecological Virtue: Articulating Tolerance as a Mutual-Respect Between Human Being and Environment
Authors: Setyabudi Muhammad Nur Prabowo
Published: June 2020

This paper elaborates the meaning of eco-tolerance in the context of ecological community between human and environment. Tolerance is often discussed as theological conception related to the relationship between religion (religious virtue) or socio-political conception related to the relationship between community or identity (political virtue). But how to build a tolerant relationship between human and their environment? What kind of wisdom that we need? I discuss about tolerance as an ecological wisdom or, “ecological virtue”, and a need for human to become a moral subject who has an ecological insight. I will elaborate ethical arguments from the perspective of virtue ethics, one of important disciplines in normative ethics, and environmental ethics, the most important branch in applied ethics, which describe that humans really need to have a mindset of ecocentric oriented, be wise and respectful toward the nature and the environment, build a mutual respect relationship, tolerance is not only a main value in political community, but also a main value in ecological community in a mutual respect ecosystem atmosphere and the existence of mutual recognition between human and nature.
Effects of Timetable Change on Job Accessibility
Authors: Wu Hao
Published: June 2020

Accessibility is seldom used as a performance measure when planning transit services. This study is conducted following introduction of new timetables intended to improve passenger throughput for Sydney’s transit services, but resulted in major delays throughout the system. Cumulative accessibility to jobs at 30-minute travel threshold before and after the timetable change are calculated between 8 and 9 am, to measure change in accessibility. The results show the person-weighted accessibility dropped by 3%, from 45,070 to 43,730, and 63.3% of the population’s access to jobs were adversely affected by timetable change. This study advocates for the inclusion of accessibility metrics into transit performance measures.
Song song hóa thuật toán Lamport trong loại trừ tương hỗ phân tán
Authors: Vĩ Đặng Hùng , Sơn Lê Văn , Huy Nguyễn Xuân
Published: June 2020

Hệ phân tán là hệ thống cung cấp tài nguyên dùng chung với quy mô lớn. Hệ phân tán sử dụng cơ chế truyền thông điệp để hợp lực trong môi trường truyền thông. Trong hợp lực, nhiều tiến trình cùng tương tranh tài nguyên dùng chung dễ dẫn đến bế tắc trong cung cấp tài nguyên. Loại trừ tương hỗ phân tán cho phép chỉ có một tiến trình duy nhất được thực thi trong miền găng tại một thời điểm đối với một tài nguyên để giải quyết bế tắc. Để đạt được loại trừ tương hỗ phân tán, các tiến trình phải được gắn dấu đồng hồ lô-gic để xác lập trật tự và loại trừ các tiến trình gây ra bế tắc. Bài báo trình bày giải pháp song song hóa thuật toán Lamport trong loại trừ tương hỗ phân tán. Kết quả giải pháp là xác lập giá trị đồng hồ lô-gic dựa trên song song hóa thuật toán Lamport và xác định các tiến trình thực thi trong đảm bảo tính nhất quán và gắn bó trong hệ phân tán.
Ukrainian NPP Seismic Resistance Assessment Using Provisions of Regulatory Guideline NP 306.2.208-2016
Authors: Buryak R. , Ryzhov D. , Horodnichenko O. , Shugaylo O-r , Shugailo O-i , Mustafin M. , Pidhaietskyi T.
Published: June 2020

Since November 2016, the new Regulatory Guideline NP 306.2.208-2016 “Requirements for Seismic Resistance Design and for Evaluation of Seismic Safety of Ukrainian NPPs” [1] has been in force in Ukraine. This Guideline was developed to improve requirements for NPP site seismic hazard assessment, NPP seismic resistance design and assessment/review of Ukrainian NPP seismic safety.

Energoatom developed the Organizational and Technical Measures for Implementation of NP 306.2.208-2016 [2] approved by State Nuclear Regulatory Inspectorate of Ukraine to perform NP 306.2.208-2016 [1] requirements.

The paper considers the status of Energoatom in implementation of the main organizational and technical measures [2] on increasing seismic resistance of Ukrainian NPP units according to NP 306.2.208-2016 [1]. In particular, these measures are the following: specification of NPP site seismicity considering results of new studies; introduction of changes into classification (seismic categorization) of systems and components; analysis of necessity to consider additional load combinations with seismic loads, specification of assessing seismic resistance of structures, systems and components; seismic probabilistic safety assessment of NPP units.
Harmonization of Methodological Approaches and Real Time Radiological Consequence Forecasting Tools
Authors: Balashevska Yu. , Kyrylenko Yu. , Pecherytsia O. , Shevchenko I. , Bogorad V.
Published: June 2020

Determination of urgent countermeasures to protect the public in early phase of the accident at NPP requires providing of radiological impact assessment at different distances in real time. These activities involve current meteorological forecast data and information about source term parameters as one of the main part of the emergency сenters functioning worldwide for prompt notification about the radiological or nuclear event in the country, as well as abroad in the case of transboundary impact.

Experts’ background in the assessment and forecasting of radiological consequences area may vary from country to country in terms of methodological approaches, the use of atmospheric dispersion models, doses assessment models, databases, organization procedures, calculation process etc. Possible deviations in the results of assessments performed by experts from different countries may be caused by a number of factors. Their reasons can vary from the use of different information sources to the specifics of protective actions criteria in accordance with national requirements. These factors should be identified both in practice and scientifically. Radiological consequence assessment activities are harmonized at the international level. It is the target of a wide range of international projects.

The paper provides information on modern scientific initiatives aimed at improving assessments and forecasts of radiological consequences to determine urgent countermeasures to protect the public at early phases of an accident at nuclear power plant, in particular, approaches to the initial data preparation and the conduct of assessments and forecasting. A review of international benchmarking activities as well as past emergency exercise overview is presented in the paper. Relevant problems of forecasting radiological consequences in real time are highlighted.
Safety and Reliability Assessment of NPP Instrumentation and Control Systems Considering Different Communication Architectures
Authors: Babeshko E. , Illiashenko O. , Kharchenko V. , Ruchkov E.
Published: June 2020

Safety and reliability assessment of instrumentation and control (I&C) systems used in different safety-critical industries is a responsible and challenging task. Different assessment models recommended by international and national regulatory documents and used by experts worldwide still have disadvantages and limitations. Therefore, studies of assessment model improvements and refinements are essential. This paper proposes that the assessment models be improved by taking into account different architectures of communications both between different systems and within one particular system. In most models, communication lines are considered absolutely reliable, but the analysis performed shows that the communications should be necessarily addressed. Several analytical models are described to assess the reliability of safety-critical systems for nuclear power plants with different communication options.
LAYANAN KONSELING KELOMPOK DALAM MENINGKATKAN PSYCHOLOGICAL WELL-BEING REMAJA DI LEMBAGA PEMBINAAN KHUSUS ANAK (LPKA) PANGKALPINANG
Authors: Paramitha Siska Dwi
Published: June 2020

Psychological well-being is needed by every individual. Psychological services are needed to achieve prosperity in psychology, one of which is group counseling services. In this case, adolescents who are in the Special Correctional Institution for Child (Lembaga Pembinaan Khusus Anak, LPKA) need to improve psychological well-being which hopes of being able to return to their role and get good acceptance in the community or social environment. This research is experimental research by a pre-experimental design-one group pretest-posttest design. The treatment given in the form of group counseling services and given questionnaires before and after treatment was given. There were 17 subjects in which group counseling services had never been done before at LPKA. Data analysis used the t-test and Gain Score. The results showed the psychological well-being of adolescents significantly no increase given to group counseling services. But, if you see the gain score data, it was found that 7 of 17 subjects experienced an increase before and after being given group counseling services.
Study on the Mechanical Cumulative Damage Model of Slope Fault Fracture Zone under the Cumulative Effect of Blasting Vibration
Authors: Wu Tingyao , Chuanbo Zhou , Nan Jiang , Yuqing Xia , Zhu Bin
Published: June 2020

As for the slope with fault fracture zone, the fault fracture zone is the main sliding surface, whose shear strength parameter is the main calculation parameter of landslide occurrence. In this paper, shaking table model tests and damage theory were used to study the change of shear strength and mechanical cumulative damage model of fault fracture zone under the blasting vibration cyclic load. At first, the slope of Daye Iron Mine is selected as a case to study the shear strength weakening law of fault fracture zone by the similarity theory and the principle of the orthogonal test, in which the influence of the characteristics of vibration loading on the shear strength parameters of fault fracture zone with different thicknesses was studied. Secondly, by the assumption of Lemaitre strain equivalence and according to the extreme value characteristics of the normal stress-shear stress curve, the damage theory model of the fault fracture zone was reconstructed, and the microelement of fault was selected for analysis and divided into two parts, including damaged and undamaged materials. Finally, the results of the shaking table model tests were compared with the results of the shear cumulative damage model to verify the rationality of the theoretical model. Moreover, the predicted results of the theoretical model can better reflect the degradation trend of the fault fracture zone with the loading amplitude, normal stress, and loading times. It can be used as a reference for slope stability prediction under the action of cumulative static and dynamic loads.
Exploring the Convergence of House Museums and Community Archives
Authors: Sarah Leeves
Published: June 2020

Current trends in the heritage field suggest that libraries, archives, and museums may benefit from working together, sharing resources, and sharing spaces – be it on the web or physically. This paper will argue that one type of museum, the house museum, would benefit especially from converging with local community archives. Community archives provide visitors with a direct connection to their community through their specialized collections and intimate focus. Meanwhile, house museums allow for a level of immersion in the exhibit that purpose-built museums do not. Their local focus also ties them to a specific community, just as community archives are tied to their local community. Together, house museums and community archives can provide a more nuanced understanding of history to their community and improve the social standing, resources, and outreach of both institutions.
Powering digital communities: How Public Libraries Can Foster Digital Inclusion and Digital Literacy in Ontario
Authors: Panzarella Lauren
Published: June 2020

In the digital age, many aspects of life increasingly rely on the use of technology. In response to this shift toward digitization, it is important to ensure that the people of Ontario not only have adequate access to digital tools, but also the skills to operate such equipment. However, several segments of Ontario’s population, including seniors, low-income individuals, and those living in rural communities, face greater barriers to meaningful participation in the digital economy because of a lack of exposure to digital tools and digital literacy. Numerous institutions and community organizations in the province, including public libraries, are working to bridge the gap in terms of skills and access. As institutions that connect patrons to technologies and digital literacy programs taught by trained literacy professionals, libraries are a crucial resource for fostering a digitally inclusive environment that prepares Ontarians with the skills required to partake in the digital economy.
Afogamento infantil: uma abordagem do Enfermeiro frente à acidentes domésticos
Authors: Neves Keila do Carmo , Pontes Edite Eugenia dos Santos , Fassarella Bruna Porath Azevedo , Ribeiro Wanderson Alves , Maia Ana Carolina Mendes Soares Benevenuto , Silva Julyana Gall da , Lugão Nátale Carvalho de Souza
Published: June 2020

A precaução dos acidentes que acontecem em domicílio em foco ao afogamento infantil é um recurso em que depende de conhecimentos profissionais para que tais sejam evitados, com orientações de um enfermeiro frente a medidas indispensáveis para estes eventos. Sendo necessária aplicação de medidas preventivas eficientes em todos os graus de cuidados, em prudência primarias com o intuito de reduzir esses acidentes, encontrando-se ações educacionais sobre estes inesperáveis acontecimentos, sendo de grande importância a ampliação destes cuidados, tendo o objetivo de avaliar também as ações elaboradas e os resultados alcançados. Objeto de estudo tem como finalidade atuação do Enfermeiro Frente às Necessidades de Cuidados Domiciliares como afogamento infantil. Objetivo analisar as condutas do enfermeiro na assistência com cuidados domésticos frente ao afogamento infantil. Este estudo se justifica, mediante as causas e consequências destes eventos, observei o quanto é essencial medida relacionada a ações de prevenções para tal ocorrido.
Que anda nas cabeças, anda nas bocas
Authors: Igreja Paula , Furtado Joaci Pereira
Published: June 2020

O senso comum diz que “os jovens não leem” ou não gostam de ler, assim como crê que os universitários da atualidade não se dedicam aos estudos. Contudo, os novos paradigmas da chamada “revolução digital” evidenciam um novo perfil de leitor, particularmente importante no Brasil com o expressivo aumento do público universitário entre 2008 e 2018. Para entender ao menos uma fração desse público, a partir das respostas de 2.126 alunos da Universidade Federal Fluminense ao questionário aplicado via formulários Google entre 15 de setembro e 5 de novembro de 2017, o presente artigo busca investigar e discutir as práticas e o comportamento de leitura entre estudantes da UFF. Destacaram-se as respostas às perguntas (1) “Você leu parte ou a íntegra de um ou mais livros das bibliografias das disciplinas do seu curso nos últimos 30 dias?”, (2) “Qual/quais? (Autor e/ou título)”, (3) “Você leu um ou mais livros impressos não técnicos, que escolheu espontaneamente, para seu lazer ou diversão, nos últimos três meses?” e (4) “Qual/quais? (Autor e/ou título)”. Os resultados estatísticos são analisados no presente estudo.
Age-Dependent Salt Hypertension in Dahl Rats: Fifty Years of Research
Authors: ZICHA J. , DOBEŠOVÁ Z. , VOKURKOVÁ M. , RAUCHOVÁ H. , HOJNÁ S. , KADLECOVÁ M. , BEHULIAK M. , VANĚČKOVÁ I. , KUNEŠ J.
Published: June 2020

Fifty years ago, Lewis K. Dahl has presented a new model of salt hypertension – salt-sensitive and salt-resistant Dahl rats. Twenty years later, John P. Rapp has published the first and so far the only comprehensive review on this rat model covering numerous aspects of pathophysiology and genetics of salt hypertension. When we summarized 25 years of our own research on Dahl/Rapp rats, we have realized the need to outline principal abnormalities of this model, to show their interactions at different levels of the organism and to highlight the ontogenetic aspects of salt hypertension development. Our attention was focused on some cellular aspects (cell membrane function, ion transport, cell calcium handling), intra- and extrarenal factors affecting renal function and/or renal injury, local and systemic effects of renin-angiotensin-aldosterone system, endothelial and smooth muscle changes responsible for abnormal vascular contraction or relaxation, altered balance between various vasoconstrictor and vasodilator systems in blood pressure maintenance as well as on the central nervous and peripheral mechanisms involved in the regulation of circulatory homeostasis. We also searched for the age-dependent impact of environmental and pharmacological interventions, which modify the development of high blood pressure and/or organ damage, if they influence the salt-sensitive organism in particular critical periods of development (developmental windows). Thus, severe self-sustaining salt hypertension in young Dahl rats is characterized by pronounced dysbalance between augmented sympathetic hyperactivity and relative nitric oxide deficiency, attenuated baroreflex as well as by a major increase of residual blood pressure indicating profound remodeling of resistance vessels. Salt hypertension development in young but not in adult Dahl rats can be attenuated by preventive increase of potassium or calcium intake. On the contrary, moderate salt hypertension in adult Dahl rats is attenuated by superoxide scavenging or endothelin-A receptor blockade which do not affect salt hypertension development in young animals.
Analysis of electrocoagulation process efficiency of
compost leachate with the first order kinetic model
Authors: Simonič Marjana , Čurlin Mirjana , Fras Zemljič Lidija
Published: June 2020

Large quantities of leachate are generated from the water release during the decomposition of the biodegradable waste. The composition of compost leachate is very complex and its treatment is necessary before releasing into the environment. The possibilities of treating compost leachate by electrocoagulation have been extensively studied. The scope of this work was to investigate applicability of the first order kinetic model for degradation of metal and organic compounds from compost leachate by electrocoagulation process. Experimental results showed 75 % removal efficiency of Cu2+ and 65 % of Zn2+, while chemical oxygen demand was reduced by 36 %. According to obtained kinetic parameters, simulation of metal removal efficiency was performed in batch reactor. This way optimal electrocoagulation time which is needed for 95 % efficiency of metal removal was determined at 120th min for Zn2+ and 102nd min for Cu2+.
MEASURING THE COMPETENCE AND THE INDEPENDENCE OF AD HOC COMMITTEE AND ITS EFFECT ON THE PERFORMANCE OF GENERAL ELECTION
Authors: Arif Ahmad
Published: June 2020

The success of the election is very closely related to the way each election is held and carried out correctly. The human resource factor (SDM) is not only regarded as the determination of the success of election but also as the quality of the general election and democracy. The process of a general election in 2019 has been found that the ad hoc committee faced many obstacles, which were generally related to the voter data collection process, election socialization, voting and counting process, the recapitulation of the voting election, etc. To improve the quality of human resources in conducting the elections was necessary to be appropriately implemented in which it must be directed and planned. However, it became a significant barrier to a large number of ad hoc (temporary) committees. This research aimed to see the competence and independence of the ad hoc committee in the 2019 Simultaneous Elections in the City of Depok. This research used descriptive quantitative in which it was based on survey results, document reviews, and observations. The results showed that the competence and independence of the ad hoc committee effected significantly to support the success of the general election.
Special Issue on Ensemble Learning and Applications
Authors: Pintelas Panagiotis , Livieris Ioannis E.
Published: June 2020

During the last decades, in the area of machine learning and data mining, the development of ensemble methods has gained a significant attention from the scientific community. Machine learning ensemble methods combine multiple learning algorithms to obtain better predictive performance than could be obtained from any of the constituent learning algorithms alone. Combining multiple learning models has been theoretically and experimentally shown to provide significantly better performance than their single base learners. In the literature, ensemble learning algorithms constitute a dominant and state-of-the-art approach for obtaining maximum performance, thus they have been applied in a variety of real-world problems ranging from face and emotion recognition through text classification and medical diagnosis to financial forecasting.
Animal Welfare and Production Challenges Associated with Pasture Pig Systems: A Review
Authors: Pietrosemoli Silvana , Tang Clara
Published: June 2020

A review of published literature was conducted to identify pasture pig production system features that pose risks to animal welfare, and to develop recommendations aimed at improving the wellbeing of the animals managed in those systems. Pasture pig production systems present specific challenges to animal welfare that are inherent to the nature of these systems where producers have little room to make improvements. However, these systems present other challenges that could be reduced with a carefully designed system, by adopting appropriate management strategies and by avoiding management practices that are likely to negatively affect animal wellbeing. In pasture pig production systems, exposure to extreme temperatures, potential contact with wildlife and pathogens (especially parasites), vulnerability to predators, risk of malnutrition, pre-weaning piglet mortality, complexity of processes for monitoring and treating sick animals, and for cleaning and disinfection of facilities and equipment are among the main threats to animal welfare.
Influence of Cover Crop, Tillage, and Crop Rotation Management on Soil Nutrients
Authors: Haruna Samuel I. , Nkongolo Nsalambi V.
Published: June 2020

Cover cropping, tillage and crop rotation management can influence soil nutrient availability and crop yield through changes in soil physical, chemical and biological processes. The objective of this study was to evaluate the influence of three years of cover crop, tillage, and crop rotation on selected soil nutrients. Twenty-four plots each of corn (Zea mays) and soybean (Glycine max) were established on a 4.05 ha field and arranged in a three-factor factorial design. The three factors (treatments) were two methods of tillage (no-tillage (NT) vs. moldboard plow [conventional] tillage (CT)), two types of cover crop (no cover crop (NC) vs. cover crop (CC)) and four typess of rotation (continuous corn, continuous soybean, corn/soybean and soybean/corn). Soil samples were taken each year at four different depths in each plot; 0–10 cm, 10–20 cm, 20–40 cm and 40–60 cm, and analyzed for soil nutrients: calcium (Ca), magnesium (Mg), nitrogen (NO3 and NH4), potassium (K), phosphorus (P), sulfur (S), sodium (Na), iron (Fe), manganese (Mn) and copper (Cu). The results in the first year showed that CT increased NO3-N availability by 40% compared with NT. In the second year, NH4-N was 8% lower under CC compared with NC management. In the third year, P was 12% greater under CC management compared with NC management. Thus, CC can enhance crop production systems by increasing P availability and scavenging excess NH4-N from the soil, but longer-term studies are needed to evaluate long-term effects.
Antifungal and Phytotoxic Activities of Essential Oils: In Vitro Assays and Their Potential Use in Crop Protection
Authors: El-Alam Imad , Raveau Robin , Fontaine Joël , Verdin Anthony , Laruelle Frédéric , Fourmentin Sophie , Chahine Ramez , Makhlouf Hassane , Lounès-Hadj Sahraoui Anissa
Published: June 2020

(1) Background: The use of natural products based on essential oils (EO) is nowadays arousing great interest as an alternative method to control plant pathogens and weeds. However, EO possess low bioavailability and are highly volatile, and their encapsulation in hydroxypropyl-ß-cyclodextrin (HP-β-CD) could be a means to enhance their stability and maintain their bioactivity. Thus, the current study aims at investigating, in the presence and the absence of HP-β-CD, the antifungal and phytotoxic activities of nine EO, distilled from plant species belonging to Alliaceae, Apiaceae, and Cupressaceae families, with considerations for their chemical composition. (2) Methods: EO antifungal activity was assessed by direct contact and volatility assays against Fusarium culmorum, a major phytopathogenic fungi, while phytotoxic effects were evaluated against lettuce (Lactuca sativa L.) and rye-grass (Lolium perenne L.), by seedling’s emergence and growth assays. (3) Results: These EO inhibit fungal growth in both direct contact and volatility assays, with half-maximal inhibitory concentrations (IC50) ranging from 0.01 to 4.2 g L−1, and from 0.08 up to 25.6 g L−1, respectively. Concerning phytotoxicity, these EO have shown great potential in inhibiting lettuce (IC50 ranging from 0.0008 up to 0.3 g L−1) and rye-grass (IC50 ranging from 0.01 to 0.8 g L−1) seedlings’ emergence and growth. However, the EO encapsulation in HP-β-CD has not shown a significant improvement in EO biological properties in our experimental conditions. (4) Conclusion: All tested EO present antifungal and phytotoxic activities, with diverse efficacy regarding their chemical composition, whilst no increase of their biological effects was observed with HP-β-CD.
Genome-wide Identification and Expression Analysis of TALE Gene Family in Pomegranate (Punica granatum L.)
Authors: Wang Yuying , Zhao Yujie , Yan Ming , Zhao Honglian , Zhang Xinhui , Yuan Zhaohe
Published: June 2020

The three-amino-acid-loop-extension (TALE) gene family is a pivotal transcription factor that regulates the development of flower organs, flower meristem formation, organ morphogenesis and fruit development. A total of 17 genes of pomegranate TALE family were identified and analyzed in pomegranate via bioinformatics methods, which provided a theoretical basis for the functional research and utilization of pomegranate TALE family genes. The results showed that the PgTALE family genes were divided into eight subfamilies (KNOX-Ⅰ, KNOX-Ⅱ, KNOX-Ⅲ, BELL-Ⅰ, BELL-Ⅱ, BELL-Ⅲ, BELL-Ⅳ, and BELL-Ⅴ). All PgTALEs had a KNOX domain or a BELL domain, and their structures were conservative. The 1500 bp promoter sequence had multiple cis-elements in response to hormones (auxin, gibberellin) and abiotic stress, indicating that most of PgTALE were involved in the growth and development of pomegranates and stress. Function prediction and protein-protein network analysis showed that PgTALE may participate in regulating the development of apical meristems, flowers, carpels, and ovules. Analysis of gene expression patterns showed that the pomegranate TALE gene family had a particular tissue expression specificity. In conclusion, the knowledge of the TALE gene gained in pomegranate may be applied to other fruit as well.
Screening and Characterization of Antiglycoxidant Anthocyanins from Vaccinium myrtillus Fruit Using DPPH and Methylglyoxal Pre-Column HPLC Assays
Authors: Fraisse Didier , Bred Alexis , Felgines Catherine , Senejoux François
Published: June 2020

Vaccinium myrtillus fruit (bilberry) is well known for its high richness in anthocyanins, which may be responsible for its preventive effects on several oxidative and carbonyl stress-related pathologies. However, limited data are available regarding the antioxidant and antiglycative contributions of its constituents. Spectrometric analyses were performed to evaluate anthocyanin content, radical scavenging and antiglycative properties of an anthocyanin-rich extract from bilberries. Additionally, original DPPH and methylglyoxal pre-column HPLC methods were instigated to allow straightforward identification of the main contributors to radical and carbonyl trapping effects. Finally, representative pure anthocyanins were evaluated using classical DPPH and antiglycation assays. Delphinidin, petunidin and cyanidin glycosides were identified as the most effective radical scavenging constituents in both HPLC and spectrometric DPPH evaluations. Potent antiglycative activities were also assessed for cyanidin, delphinidin and petunidin glucosides as attested by their respective IC50 values of 114.2 ± 7.8, 130.5 ± 2.8, and 132.4 ± 3.7 µM. Interestingly, methylglyoxal spiking evaluation demonstrated that all bilberry anthocyanins exerted noticeable and comparable α-dicarbonyl trapping effects. Anthocyanins can be regarded as potent antiglycoxidant agents that might account for some health benefits of bilberries consumption. Besides, significant differences in their contributions were successfully highlighted by the employed pre-column HPLC assays.
Structural Modifications in Epitaxial Graphene on SiC Following 10 keV Nitrogen Ion Implantation
Authors: Kaushik Priya Darshni , Yazdi Gholam Reza , Lakshmi Garimella Bhaskara Venkata Subba , Greczynski Grzegorz , Yakimova Rositsa , Syväjärvi Mikael
Published: June 2020

Modification of epitaxial graphene on silicon carbide (EG/SiC) was explored by ion implantation using 10 keV nitrogen ions. Fragments of monolayer graphene along with nanostructures were observed following nitrogen ion implantation. At the initial fluence, sp3 defects appeared in EG; higher fluences resulted in vacancy defects as well as in an increased defect density. The increased fluence created a decrease in the intensity of the prominent peak of SiC as well as of the overall relative Raman intensity. The X-ray photoelectron spectroscopy (XPS) showed a reduction of the peak intensity of graphitic carbon and silicon carbide as a result of ion implantation. The dopant concentration and level of defects could be controlled both in EG and SiC by the fluence. This provided an opportunity to explore EG/SiC as a platform using ion implantation to control defects, and to be applied for fabricating sensitive sensors and nanoelectronics devices with high performance.
Analysis of Streptococcal Infection and Correlation with Climatic Factors in Cultured Tilapia Oreochromis spp. in Taiwan
Authors: Liao Pei-Chih , Tsai Yi-Lun , Chen Yao-Chung , Wang Pei-Chi , Liu Shu-Chu , Chen Shih-Chu
Published: June 2020

Tilapia (Oreochromis spp.), a prominent warm water food fish, is one of the major fish species grown in the aquaculture industry in south-east Asia. Tilapia can tolerate adverse water quality and other stressors, like diverse salinity and fluctuation of pH value, better than most other commercial aquaculture species. Environmental fluctuations are one of the main factors that affect the outbreak of infectious diseases in cultured tilapia. Cultured tilapia in Taiwan appears to be more susceptible to infections caused by Streptococci during the summer season. The present study emphasizes the Streptococcus spp. infection in tilapia in Taiwan and is the first study on the analysis of the potential impact of climate change on streptococcal infection in cultured tilapia in Asia. The data collected from the treatment and diagnosis system (TDS) of the aquatic animal diseases database from 2006 to 2015 were used to analyze the endemic streptococcal infection and the effect of climatic factors. Based on the results, the factor, average atmospheric pressure, is negatively correlated to streptococcal infection, while the other three, including average temperature, ultraviolet (UV) index, and rainfall, are positively correlated to streptococcal infection. A multivariate logistic regression model with these four factors was also built. When the average temperature is above 27.0 °C, the average atmospheric pressure is lower than 1005.1 hPa, or the UV index is above 7.2, the percentage of cumulated positive farms from all submitted tilapia cases was more than 50%. In addition, within 3 days of rain, rainfall is relevant to the occurrence of Streptococcus in tilapia. Using TDS to alert the occurrence of streptococcal infection in tilapia can be a very useful tool for veterinary aquatic animal inspection stations, and reducing economic losses and labour costs in aquatic agriculture.
A Palm-Jacobaeus Loss Formula for Multi-Service Systems with Separated Resources
Authors: Głąbowski Mariusz , Kaliszan Adam , Stasiak Maciej
Published: June 2020

This article presents a method to determine the blocking probability (non-availability) for strictly determined multi-service resources that belong to a group of multi-service resources. The dependencies obtained during the process correspond to the Palm-Jacobaeus formula derived for the group of resources servicing single-service traffic. The approach to determining the blocking probability is based on the determination of the availability of resources at the occupancy level of allocation units. The analytical results are compared with the obtained results of the simulation experiments for a number of selected parameters of multi-service groups of resources. The results of the present study indicate a high accuracy of the proposed solutions. The elaborated extension of the Palm-Jacobaeus formula can be used in the modeling of separated wireless resources in cellular networks.
Reliability Analysis of Layered Soil Slopes Considering Different Spatial Autocorrelation Structures
Authors: Zhang Shaohe , Li Yuehua , Li Jingze , Liu Leilei
Published: June 2020

It is widely recognized that different geological formations often vary differently in space. Therefore, soil properties from different layers should be modeled by different autocorrelation functions (ACFs) to reflect such soil heterogeneity. However, the same ACFs are frequently used for different soil layers in slope reliability analysis for simplicity purpose in the literature. The present work is a study on the effects of ACFs on the reliability analysis of layered soil slopes, where the soil properties of different layers are considered by different ACFs. Five commonly used classical ACFs and the non-classical Whittle–Matérn model were investigated in this study. Cholesky decomposition and Monte Carlo simulation were used to simulate the spatial variability of the soil properties and estimate the probability of failure (Pf) of slopes, respectively. Illustrative examples with various parametric studies show that when the soil properties from different layers are characterized by the same ACFs, the Pf of the studied slopes is comparable with that estimated using different ACFs for different soil layers. This indicates that the type of ACF has only a small impact on the slope reliability assessment. However, the Pf may be underestimated by the single exponential ACF and overestimated by the cosine exponential ACF. The scale of fluctuation of the soil properties influences the slope reliability more than the ACFs. In addition, the smoothness parameter in the non-classical model has a significant influence on the reliability of the slope, where Pf increases with the increase of the smoothness parameter.
Magnesium Oxybromides MOB-318 and MOB-518: Brominated Analogues of Magnesium Oxychlorides
Authors: Lauermannová Anna-Marie , Lojka Michal , Antončík Filip , Sedmidubský David , Pavlíková Milena , Pavlík Zbyšek , Jankovský Ondřej
Published: June 2020

The search for environmentally sustainable building materials is currently experiencing significant expansion. It is increasingly important to find new materials or reintroduce those that have been set aside to find a good replacement for Portland cement, which is widely used despite being environmentally insufficient and energy-intensive. Magnesium oxybromides, analogues to well-known magnesium oxychloride cements, fit both categories of new and reintroduced materials. In this contribution, two magnesium oxybromide phases were prepared and thoroughly analyzed. The stoichiometries of the prepared phases were 5Mg(OH)2∙MgBr2∙8H2O and 3Mg(OH)2∙MgBr2∙8H2O. The phase analysis was determined using X-ray diffraction. The morphology was analyzed with scanning and transmission electron microscopy. The chemical composition was studied using X-ray fluorescence and energy dispersive spectroscopy. Fourier transform infrared spectroscopy was also used. The thermal stability and the mechanism of the release of gasses linked to the heating process, such as water and hydrobromic acid evaporation, were analyzed using simultaneous thermal analysis combined with mass spectroscopy. The obtained results were compared with the data available for magnesium oxychlorides.
Climatology of the Linke and Unsworth–Monteith Turbidity Parameters for Greece: Introduction to the Notion of a Typical Atmospheric Turbidity Year
Authors: Kambezidis Harry D. , Psiloglou Basil E.
Published: June 2020

Solar rays are attenuated by the Earth’s atmosphere. This attenuation can be expressed by the turbidity parameters; two of them are the Linke turbidity factor (TL) and the Unsworth–Monteith turbidity coefficient (TUM). In this sudy, both parameters are estimated for 33 sites across Greece, and the notion of a Typical Atmospheric Turbidity Year (TATY) is also introduced. Use of the modified clearness index (k’t) is made, while a suggestion for a modified diffuse fraction (k’d) is given. The adoption of the four climatic zones in Greece for energy purposes is made, where the variation of TL and TUM is studied during a TATY under all and clear-sky conditions. The analysis shows maximum levels in both parameters in late winter–early spring in morning and evening hours, with minimum values at midday. The intra-annual variation of the parameters shows maximum values around March and August and minimum values in summertime and late winter. Maps of annual mean TL and TUM values over Greece show persistent minimum values over Peloponnese and maximum values over South Ionian Sea. Linear expressions of TUM vs. TL are derived for all sites under all and clear-sky conditions. Finally, linear expressions for k’d vs. k’t are given for all sites and sky conditions.
Needle Transportable Semi-Automatic Hair Follicle Implanter and Image-Based Hair Density Estimation for Advanced Hair Transplantation Surgery
Authors: Bae Tae Wuk , Jung Yong Chul , Kim Kyu Hyung
Published: June 2020

As the number of hair follicles transplanted in a patient is approximately 2000 or more, hair transplantation by a manual implanter requires a considerable amount of time and money and demands a great amount of patience and pain tolerance from both patients and surgeons. In addition, many surgeons frequently experience musculoskeletal disorders owing to the numerous simple repetitive motions of the shoulder and wrist during the procedure. Moreover, the results of the surgery may vary depending on the skill of the surgeon. Although the hair follicle extraction technology has advanced in recent years, the hair follicle transplantation technology still uses a simple hand-held implanter owing to the difficulty of transplanting hair follicles and hair. In this study, a needle transportable semi-automatic hair follicle implanter that can continuously transplant hair follicles is introduced to alleviate the inconvenience of the existing manual implanter. In the developed semi-automatic implanter, a plurality of needles, into which the hair follicles are inserted, are sequentially supplied from the needle supply magazine to the implanter body by the guide groove. The hair follicles in the supplied needles are transplanted to the scalp through the forward and backward movement of the needle gripper and driving motors. The developed implanter can transplant several hair follicles without any replacement, which can shorten surgery time and reduce the fatigue experienced by patients and surgeons. The effectiveness of the proposed implanter was verified through the results of animal and clinical experiments.
Overlap Avoidance of Mobility Models for Multi-UAVs Reconnaissance
Authors: Jo Yong-il , Lee Seonah , Kim Kyong Hoon
Published: June 2020

As avionics technologies have advanced, it is possible to perform many aerial applications which demand cooperative work with multiple Unmanned Aerial Vehicles (UAVs). Since one of the basic applications is reconnaissance, we focus on efficient cooperative reconnaissance. While random mobility models are useful for multi-UAVs reconnaissance, they suffer from overlapped reconnaissance problem that two or more UAVs reconnoiter a region at the same time. The overlapped reconnaissance also leads to imbalanced reconnaissance in which an area scanned by one UAV may be re-visited soon by the other UAV. Thus, we provide overlap avoidance schemes for the existing reconnaissance mobility models and enhance their performance. Throughout the simulations, we evaluate the effect of applying overlap avoidance in the existing models. The simulation results show that overlapped area is reduced by up to 20 times and 90%-coverage reaching time is improved by up to 19%.