bluuebunny/crossref_metadata_2025 huggingface dataset:
Use by polar bear (ursus maritimus) of the habitat along coastline throughout the year according to satellite monitoring data
Authors: Platonov N. G. , Mizin I. A. , Ivanov E. A. , Mordvintsev I. N. , Naydenko S. V. , Rozhnov V. V.
Published: June 2019

A polar bear female (Ursus maritimus) was captured and marked by satellite collar of the Argos system on Vaygach Island. Data of location relative to the coastline in the Kara Gate from April 2016 to September 2017 was analyzed. An analysis of the polar bear trajectory revealed periods of its greater (when on ice) and less (on land) mobility and directed of movement. The largest area of the polar bear habitat on an average monthly scale was in May 2016, when moving on small-hit ice, the smallest – in January 2017, when on land with no ice. We estimated the distance to the coast to analysis for resource use (27% of the time on the coast, 33% on land, 40% in the water area). Comparison with our previous studies has shown, there is a commitment to land, even during the season of sea ice presence.
Ecologically safe protective coatings for transport
Authors: Shevchenko V. Ya. , Shilova O. A. , Kochina T. A. , Barinova L. D. , Belyi O. V.
Published: June 2019

Ways to protect vehicles and transport infrastructure from the effects of negative climate impacts, corrosion, icing, radiation, marine fouling, and biodestruction are considered based on scientific developments of Russian Academy of Sciences’ Institute of Silicate Chemistry. New methods and approaches to develop environmentally friendly protective coatings are considered.
Anthrax: actual problems of elaboration and introduction in practice of medical defense means
Authors: Kulichenko A. N. , Buravceva N. P.
Published: June 2019

The 2nd edition of the book “Anthrax: Actual Problems of Developing and Implementing Medical Protection Means” has been published under the editorship of RAS Academician G. G. Onishchenko, Professor I. V. Darmov and Corresponding Member of RAS S.V. Borisevich. The main reason for the release of the first edition was the increased attention to the anthrax problem after the terrorist attack in the USA in 2001 using Bacillus anthracis as a bacteriological agent [1]. These events have become a significant incentive for research in many countries, including Russia.
Method of calculating the heat and stress-deformed state of the cylinder head of a transport diesel with liquid cooling
Authors: Gotz A. N , Klevtsov V. S
Published: June 2019

In an internal combustion engine (ICE), stresses arise from the action of a variable gas force and from a variable temperature due to the combustion of fuel in the combustion chamber in the cylinder head and piston, while the thermal stresses are much higher than the stresses from the power load. Therefore, at the design stage of a new engine design, they are calculating the durability of heat-stressed parts, since they limit the reliability of a piston engine. The paper discusses the method of selecting source data when calculating the thermal and stress-strain state of the cylinder head of a diesel engine using the finite element method and using the Solid Works software package. The stages of creating and preparing a solid model of a cylinder head to create a finite element model are described using the example of the 8ChN12 / 13 diesel engine (KAMAZ 740.75-440). The main loads acting on the cylinder head during the assembly period are considered: efforts from pressing in valve seats and bushings, as well as from tightening the bolts for fastening the head to the crankcase. The shape of the elements for the finite element model of the cylinder head was chosen from the condition of reducing the estimated time. This condition was suited to the shape of a finite element in the form of a tetrahedron with four nodal points. These elements made it possible to reduce the computational grid in cross sections, for example, stress concentration. It is shown that high-frequency temperature fluctuations that occur as a result of the flow of the working process of a piston engine do not affect the thermal strength of the cylinder head, and high-frequency temperature fluctuations due to changes in the engine operating conditions affect. The changes in the basic characteristics of the aluminum alloy from which the cylinder head is made with temperature and cyclic thermomechanical loading of low frequency are given. It is shown that with increasing temperature, the endurance limit of the material decreases at low frequency loads.
Design and development of a new sensor system for assistive powered wheelchairs
Authors: Nuttin Marnix , Claes Victor
Published: June 2019

Many disabled people experience considerable difficulties when driving a powered wheelchair. Disabled people who are not able to drive a powered wheelchair are seriously limited in their mobility. Several robotic assistive wheelchairs have been devised in the past. These wheelchairs are equipped with range sensors, which detect obstacles and measure the distance to the closest object. The authors are involved in this kind of projects but, although many sensors exist commercially, they never found satisfactory range sensors for wheelchair applications. After identifying these sensor requirements, this paper presents the design of an optical ranging system, more in particular a lidar (Light Detection and Ranging) scanner for wheelchair applications. Test results are reported to show that this scanner meets the identified requirements.
Product review of alternative computer workstations as possible workplace accommodations for people with chronic low back pain
Authors: Haynes Scott , Williams Karen
Published: June 2019

Problems with chronic low back pain (LBP) impact the lives of many working age adults. The condition can leave people frustrated when their desire to work conflicts with their need to relieve the chronic discomfort. Because physical labor can aggravate the condition, persons with LBP may seek a more sedentary type of employment, such as video display terminal (VDT) operator. Unfortunately, typical VDT workstations require the operator to sit upright, which may increase the discomfort of an operator with LBP. Alternative computer workstations have been designed to allow the VDT operator to access the computer from a significantly reclined or supine posture. These postures have been shown to relieve some forms of LBP. This paper describes a comparison between twenty-four alternative computer workstations as potential workplace accommodations for people with LBP. Just under half (46% of the systems reviewed, are designed for use only with a laptop computer, and will not support full-size monitor and keyboard. Only 33% allow access to full-size computer components from both a reclined and a supine posture. Complexity of component adjustment and awkward positioning for ingress and egress make these systems less than optimal for accommodating people with LBP in a typical VDT workplace environment.
Pilot on evaluating social participation following the use of an assistive technology designed to facilitate face-to-face communication between deaf and hearing persons
Authors: Vincent Claude , Deaudelin Isabelle , Hotton Mathieu
Published: June 2019

We know very little about social participation following the use of an assistive technology, and nothing reagarding device designed to facilitate face-to-face communication between hearing persons and deaf people who use sign language, and cannot speak and write. A pilot on evaluating social participation following the use of a new assistive technology is proposed. Fifteen deaf adults completed a three-month field study, with pre and post intervention measures. Three standardized instruments (LIFE-H, FACS, QUEST) were adapted for sign language interpretation and pretested. One month into the study, all participants had used the AT in 40% of ADL and 33% of social roles. AT use in life habits subsequently declined. The results for social participation showed only one significant improvement (p=0.026) after one month of AT use: the item concerning conversation with a hearing person. For functional communication, we found a significant improvement after 8 (p=0.016) and 12 weeks (p=0.012) for “social communication” only. The users were “neither dissatisfied nor satisfied” with the AT. Effectiveness, ease of use and follow-up services are considered critical. Methodological and technical improvements are suggested for researchers, developers, promoters and clinicians.
Web accessibility design recommendations for people with cognitive disabilities
Authors: Friedman Mark G. , Bryen Diane Nelson
Published: June 2019

Web accessibility for people with Cognitive Disabilities has generated increasing interest in the professional web development, scholarly and advocacy communities in recent years, although there is little acknowledged agreement on how to proceed. This article conducts a review of the current understanding of experts in the field as exemplified by Web design guidelines. It provides current Web design recommendations that have achieved a high degree of agreement as well as four recommendations for implementation. Twenty existing Web design guidelines from Web accessibility experts, government and advocacy organizations were identified in an extensive literature review. Those disabilities specifically addressed by these guidelines included: cognitive disabilities (9), cognitive impairments (2), learning disabilities (4), dyslexia (3), aphasia (1), and mental retardation or intellectual disabilities (1). The authors of the Guidelines came from Australia (1), the United Kingdom (7), and the United States (12). The 20 guidelines contained 187 separate design recommendations which were combined due to duplications and organized for analysis. The top recommendations included: 1) Use pictures, graphics, icons and symbols along with text (75% agreement), 2) Use clear and simple text (70% agreement), 3) Use consistent navigation and design on every page (60% agreement), and 4) Use headings, titles, and prompts (50% agreement).
Peculiarities of application of rebars with various periodic profile as per GOST 34028–2016
Authors: Kvasnikov A. A. , Savrasov I. P. , Kharitonov V. A.
Published: June 2019

In the GOST 34028–2016 “Rebar for concrete structures. Technical specifications”, forms and parameters of periodic profiles are specified, providing solving a wide range of problems from high indices of cohesion for reliable joint rebars and concrete servicing until meeting all the requirement of logistics, related to economic industrial production of reinforcing products. Application of it assumes a free choice out of four standard periodic profile configurations. Production and particularly application the periodic profiles with various configuration need additional clarification. A review of the periodic profile standard forms of rebars as per GOST 34028–2016 presented. Classification of the periodic profile standard forms and designation of rebars quoted. Optimal criteria values of cross rib relative surface rumpling of various profiles. Non-standard kinds of profiles, elaborated in Russia for industrial production, but not included into GOST 34028–2016, quoted. Recommendations on standard and non-standard forms of the periodic profile in case of concrete structures designing, including those for seismic regions, quoted.
Study of contact interaction of highcarbon wire and drawing die in the process of combined deformation
Authors: Lisovenko D. S. , Polykova M. A. , Stolyarov A. Yu. , Gulin A. E. , Nikitenko O. A.
Published: June 2019

Study of contact interaction of an instrument of a processed wire is an actual task, since the interaction controls the efficiency of the combined action on a material. Studies of peculiarities of contact interaction of Steel-70 grade high-carbon wire with a drawing die in the process of combined deformation by drawing with twisting. Analysis of factors, influencing the resource of drawing die workability was the purpose of the work. Values of radial stresses on the drawing die surface at the combination of drawing with twisting were obtained by a method of finite-element simulation. As a result of the simulation it was determined, that at the combined deformation of the wire by drawing and twisting, the values of radial stresses on the drawing die surface do not reach critical values. Calculation of estimation of average resource of the drawing instrument was accomplished for various modes of combined deformation. The results obtained indicate a high reliability and workability of the applied deformation instrument. It was shown by a method of optical metallography, that a white layer is formed on the surface of the high–carbon wire, which is not subjected to etching. Thickness of the layer depends on intensity of the combined deformation. Influence of the combined deformation by the drawing at various twisting speeds on mechanical properties of the Steel-70 grade high-carbon wire studied, peculiarities of micro-hardness gradient from the wire surface at various twisting speeds determined. The obtained results can be used for theoretical justification of peculiarities of the high-carbon steel behavior at the contact with conical deformation area drawing die at various modes of combined deformation by drawing with twisting.
CRISE DU FINANCEMENT DE L'ENSEIGNEMENT SUPÉRIEUR: LE CAS DE L'UNIVERSITÉ D'ÉTAT DE PARAÍBA (UEPB, BRÉSIL) DANS LA VALIDITÉ DE LA LOI N° 7.643/2004
Authors: Ferreira Giovana Carneiro Pires , Furtado Gil Dutra
Published: June 2019

L’Université d’État de Paraíba - UEPB est une autorité supérieure de l’enseignement supérieur, liée au Secrétaire d’État à l’éducation, gérée principalement avec des ressources du gouvernement de l’État. Passer par des crises financières successives au cours des dernières années, en raison de la diminution de sa participation à la perception des recettes ordinaires de l'État. L’étude porte principalement sur les liens de l’université publique pour le développement. Notre objectif est de vérifier l'application de la loi 7 643/2004 et plus précisément, en tant qu'étude de cas, d'analyser la matérialisation de l'afflux de ressources de l'État dans l'UEPB en raison de la validité de cette loi, qui réglementait son principal mode de financement: état public. C'est une recherche de type exploratoire et descriptif, ayant comme méthode d'approche le problème de la recherche quantitative. Une étude de cas a été réalisée sur la base de recherches bibliographiques et documentaires, car outre l'enquête sur les références théoriques déjà analysée et publiée à travers des articles scientifiques, des livres, la page Web de l'institution, l'analyse des sources était également effectuée, sans traitement analytique, rapports de comptabilité et de gestion. La crise financière dont souffre cet IES est le résultat d'une réalité historique d'exploitation, implantée par le capitalisme dépendant qui perdure jusqu'à nos jours, dans laquelle les nations hégémoniques se sont avancées vers ces pays à la recherche de nouveaux marchés pour dominer et jouir de leurs richesses. L'UEBP reflète le processus national qui réduit le volume de ressources publiques investies par son sponsor dans ses activités, précaires. En ce sens, le modèle de développement dépendant adopté a une influence sur la routine interne des établissements publics d’enseignement supérieur et compromet son destin.
Hubungan Durasi Penggunaan PlayStation dengan De Quervain’s Syndrome pada Pemain PlayStation di Rental PlayStation Kelurahan Puncak Sekuning Palembang Tahun 2016
Authors: Rohideta M. Sasini , Asnawi Herry , Irfanuddin Irfanuddin
Published: June 2019

De Quervain’sSyndrome adalah nyeri pada daerah prosesus stiloideus bagian distal tulang radius akibat inflamasi pembungkus tendo otot abductor pollicis longus dan extensor pollicis brevis yang disebabkan repetitive strain injuries (RSI) ataupun overuse, dengan tanda-tanda klasik positif tes Finkelstein. Pengguna PlaysStation melakukan kegiatan berulang (repetitive) yang berpotensi menyebabkan RSI. Penelitian ini dilakukan untuk mengetahui hubungan penggunaan PlayStation dengan De Quervain’s Syndrome pada pemain PlayStation di rental PlayStation Kelurahan Puncak Sekuning Palembang. Penelitian ini merupakan penelitian analitik observasional dengan desain  cross-sectional yang dilakukan pada bulan Agustus-November 2016. Sampel penelitian ini berjumlah 97 pengguna PlayStation yang di ambil dengan cara consecutive sampling. Data didapatkan dari wawancara dan pemeriksaan tes Finkelstein. Hasil yang diperoleh dianalisis dengan uji statistik Chi-Square.Dari penelitian ini didapatkan 69 (71,1%) kasus De Quervain’s Syndrome. Uji statistik menunjukkan variabel durasi penggunaan PlayStation (p=0,034) memiliki pengaruh yang bermakna terhadap kejadian De Quervain’s Syndrome.Terdapat hubungan yang bermakna antara durasi penggunaan PlayStation terhadap De Quervain’s Syndrome.
Causes of Energy Wastage in Cloud Data Centre Servers : A Survey
Authors: Mosoti Derdus Kenga , Oteke Omwenga Vincent , Job Ogao Patrick
Published: June 2019

Datacenters are becoming the indispensable infrastructure for supporting the services offered by cloud computing. Unfortunately, datacenters consume a lot of energy, which currently stands at 3% of global electrical energy consumption. Consequently, cloud service providers (CSP) experience high operating costs (in terms of electricity bills), which is, in turn, passed to the cloud users. In addition, there is an increased emission of carbon dioxide to the environment. Before one embarks on addressing the problem of energy wastage in a datacenter, it is important to understand the causes of energy wastage in datacenter servers. In this paper, we elaborate on the concept of cloud computing and virtualization. Later, we present a survey of the main causes of energy wastage in datacenter servers as well as proposed solutions to address the problem.
Developing an Approach to Evaluate and Observe Sentiments of Tweets
Authors: Agarwal Parinita
Published: June 2019

Social media are computer- mediated tools that allow people or companies to create, share or exchange information, career interests, ideas and the form of text, audio, video, image in virtual communities and networks. Twitter is a trendy microblogging service where many users procreate various status messages called tweets. Twitter is the fastest way to get real time information from the around the world. Tweets themselves are short and compact, like newspaper headlines. Analysis of sentiment is widely observed on numerous social networking websites. Nowadays, microblogging sites deed as a base to perceive the actual social opinion. The task of sentimental analysis is often known by many other names as opinion extraction, opinion mining, sentiment mining, subjectivity analysis.
Parenting Styles as a Function of Academic Achievement.
Authors: Tekle Woldearegai Bisrat , Babita Das Dr.
Published: June 2019

The study investigated the relationionship between parenting behaviors and academic achievement. The objective of the study was to inquire the functions of parenting on academic achievement. The study was conducted in Tulu Yombo Junior School, Oromia regional state, Ethiopia. The study was conducted from January 2018 up to September 2018. The study employed a cross-sectional research design. The population of the study was 200 students of grade 7 and 8. Subsequently, 50(25%) samples were selected using stratified random sampling. The study was a pure quantitative research type. For this reason, it used a survey questionnaire which is close-ended to identify the styles of parenting the parents of the students employed. The questions were prepared to be responded in “Likert Scales”. On the other hand, record scores of academic achievement were used as secondary data. The data were analyzed and interpreted using One-way ANOVA and Honestly Significance Difference (HSD) statistical test. The result of the study revealed that children of Authoritative (democratic) parents scored (x̅ =80.75) significantly higher in their academic achievement than did children from Non-authoritative. However, no substantial difference was observed in the academic achievement of students from authoritarian (x̅ =61.3), indulgent (x̅ =53.8) and neglectful parents (x̅ =52.4).
Critical Success Factors for AIS Change: A Case Study in an Agricultural Company.
Authors: Muhammad Kamaruzzaman , Mastuki Nor’Azam , Darus Faizah , K Ghani Erlane
Published: June 2019

This study investigates the critical success factors of AIS change in an agricultural company. This study adopts the case study approach in achieving its objectives. The findings of this study show that the company has adopted several strategies to ensure the upgrading of the new AIS structure was successful. Several strategies were adopted. The strategies are allocation of sufficient resources and funds, hands-on training, user participation, proper management of resistance, effective project management, top management support, use of external and internal experts, system requirement analysis, established new policies and procedures, and system migration and integration. The findings of this study serve as a guideline for business practices and contribute to the academic knowledge and literature. In addition, this study contributes to the organisational change literature as well as to practitioners in understanding the critical success factors of AIS change. Understanding such a process provides further insight and serves as guidance to companies in managing future organisational and AIS change effectively.
Perception of Locals on Management and Improvement of Forest Resources and Timber Exploitation in Akwa Ibom State, Nigeria
Authors: Sampson Ebong Mbuotidem , Udoh Victory , Ansa Iniubong , Sampson Nsidibe Mbuotidem , Ogbobula Joseph N.
Published: June 2019

A study was carried out in Imo River Estuary, Akwa Ibom State of Nigeria to evaluate the perception of the local people on the environmental and socio-economic effects of timber harvesting and management. Five local government areas were purposively selected based on their proximity to the Imo River Estuary. Despite the high effect rates of timber exploitation, most of the locals of the study area have little or no knowledge of the severity of these effects on their environmental and socio-economic well-being; thereby, limiting the required rate and application of necessary mitigation measures as revealed by the Cmax of 0.89 affirming of the relationship of the perception of the locals to the implications of timber exploitation in the study area. Based on the findings, the constraints hindering effective timber utilization and management in the study area are lack of public awareness and poor value system supported, respectively, by 180 and 165 of the respondents out of 300. Hence, the study suggests that the local people of the study area should be educated about sustainable utilization and management of forest resources. Moreover, state government and logging companies should embark on reforestation, afforestation and regeneration programmes in order to replace extracted tree species and regenerate extinct species.
СOMPLEX FOR СULTIVATION AND РROCESSING OF АLGAE AS РART OF THE PROJECT TO CREATE IN UKRAINE A HIGH-TECH COMPLEX FOR THE PRODUCTION OF SYNTHETIC MOTOR FUEL
Authors: Orshansky Yu.R. , H. Al-Delaimi Abdul Aziz , Bondarenko B.I. , Rudykа V.I. , Soloviev M.A.
Published: June 2019

The International Investment Project «Creation in Ukraine of a High-Tech Complex for Processing Coal into Motor Fuels» provides for the use of a technological line for growing algaes, by utilizing significant technological waste from the main technological lines of the Project (low potential heat; methane gas from degassing of a raw mine; the remainder of the air distribution for the production of process oxygen; carbon dioxide obtained from coal gasification, etc.). Hydrothermal carbonization is currently the most advanced biomass processing technology. It completely prevents pollution and has a number of significant advantages over other methods of biomass treatment. These advantages make it possible to consider hydrothermal carbonization to be the best available technology for the production of biochar, liquid biofuel and other products from non-food biomass. Bibl. 11, Fig. 6.
DEEP OXIDATION OF METHANE OVER MULTICOMPONENT CoO BASED CATALYSTS ON CERAMIC MONOLITHS
Authors: Kosmambetova G.R. , Trypolskyi A.I. , Soloviev S.O. , Kapran A.Yu. , Strizhak P.E.
Published: June 2019

Multicomponent CoO-CeO2(SrO)-Pd(Pt) catalysts on ceramic monoliths of a honeycomb structure (synthetic cordierite) were shown to be efficient for the deep oxidation of methane. Based on the results of the studying the effect of Al2O3 as a second carrier-substrate, the content of CoO, modifying/promoting additives of strontium and cerium oxides, palladium, platinum on catalyst activities, it was found that a 4,9%CoO-4,9%CeO2-0,1%Pd/cordierite specimen is optimal for use in catalytic heat generators. The catalyst of this composition, with increased mechanical strength, thermal resistance and resistance to carbonization, provides CO free oxidation of methane in the stoichiometric mixture with oxygen. Bibl. 33, Fig. 4.
物流成本及其管理模式的研究
Authors: 徐 昊
Published: June 2019

对于现代企业来说，物流管理是不可忽视的问题。物流管理的先进理论进入我们国家的时间并不长，相关的研究工作还在深入展开，物流成本管理则是研究的重点所在。在对物流活动相关内容展开全面分析的基础上，将ABC核算法予以充分应用，进而构建起更为完善的物流成本管理体系，这样就能够对物流成本所呈现出的特点有切实的了解，进而使得企业的成本投入切实降低，经济效益则大幅提升，在市场中的竞争实力能够得到增强。
浅谈建筑施工企业成本管理存在的问题及对策
Authors: 张 立梅
Published: June 2019

当前，随着我国经济及建筑行业的快速发展，建筑施工企业也逐渐增多，市场竞争变得愈发激烈，很多建筑施工企业为了在市场竞争中占据优势，在工程招标时往往会采用低价中标手段，这样就给建筑施工企业的利润率带来了很大的影响。在工程建设阶段，如果没有加强对成本的管理，那么将很容易导致亏损问题的发生。所以，建筑施工企业必须要加强对成本管理的重视，提高自身的成本管理能力，只有这样，才能使自身在市场竞争中立于不败之地。
浅谈居住小区环境设计
Authors: 张 高德
Published: June 2019

随着物质水平的逐渐提高与人们日益满足的生活条件，现今对居民小区的要求大大不同于以往，在追求上逐渐偏靠于功能与美观并存，要求其居住的生态环境优美、具有传统的古典山水风格、符合精神文明的可持续发展、能够展现较高的物质底蕴等。因此，小区中对景观设计的重视程度日益提高，在其设计方面：立意、主题、手法、景观范围等对小区的景观进行介绍，并通过对其内涵进行深层次的讲解，在绿地、绿化方面进行着重分析，用以改善城市居民的生活水准、质量、甚至环境。
物联网的无线通信技术（NB-IoT）
Authors: 周 旭 , 喻 钢锥
Published: June 2019

当前物联网技术发展的非常迅速，通过物联网可以将现实场景与网络平台连接，从而形成有效的互联互通效果，这有利于提高管理效率与远距离控制水平。常见的包括短距离通信和广域网通信两种，这两种技术类型不同、适应的场景也不同，对此进行探讨。
5G网络规划
Authors: 张 卫刚 , 李 树磊
Published: June 2019

本文分析了5G网络规划的流程，重点分析了5G的覆盖能力、容量能力及相关参数，并针对网络建设给出给出相关建议。移动无线网络建设的基础和前提就是无线网络规划，网络规划的合理性和优劣性直接决定了网络的性能。尤其在5G网络即将大规模建设的前期，5G的网络规划研究极为重要。
BIM技术在建筑工程施工管理中的应用解析
Authors: 秦 海港
Published: June 2019

经济的发展，社会的进步，不仅促进了建筑行业的发展也给建筑工程施工管理工作提出了新的要求。再加之建筑工程的施工量、复杂程度逐渐增加对施工技术的要求也越来越高，因此建筑工程施工管理人员应不断强化管理工作，并跟紧时代发展的步伐，提升管理工作的效率与质量，在此基础上提升自身企业在建筑市场中的竞争力，促进企业的长远发展。在这样大的发展环境下BIM技术得到了广泛的应用，企业在进行施工管理时可以充分的利用BIM技术对管理方式等进行优化与完善，充分的显现出其在施工管理中的作用，并在今后的使用中不断的进行拓展，以此来促进整体建筑行业的信息化水平，加快建筑行业的发展。
Multiple Colors Making System Using PLC
Authors: Farhi Lubna , Ali Zain Anwar , Zia Saud
Published: June 2019

This paper presents an automated multiple color making system. The various stages of work operations included in the adaptation of manually operated color mixing systems towards fully automated multiple colors making system. The proposed system can extract color features of an image and returns the intensities of Red, Green and Blue colors for a specified pixel in the given image. Since RGB Color Model is used for digital communications like televisions and computer monitors, and CMYK Color Model is used for printing and painting. So, for mixing purpose; the intensities of RGB are then converted into the intensities of Cyan, Magenta, Yellow and Black colors which then further converted into the form of electrical signals. Generally, from three primary colors CMY, a wide range of colors will be made with different proportions. The electrical signals will then be transmitted serially to our Logic Controller for mixing process, that sense the level of primary colors to be mixed and then mix colors proportionally in a container accordingly up to a fixed level in order to make different multiple colors of fixed quantity.  Simulation results shows that the proposed methodology removes the chances like variation in quantity or inaccuracy which happened with the manually color sensing and mixing. It reduces the labor efforts and makes 7% more accurate with minimum error and achieve good retrieval performance.

 

Index Terms— Programmable Logic Controller (PLC), Python Image Library (PIL), Color Histogram, RGB / CMYK Color Model, Features Extraction Techniques.
Learning Analytics: A Data Mining and Machine Learning Perspective
Authors: Khan Salam Ullah , Ullah Kifayat , Lodhi Mahvash Arsalan , Bangash Sadaqat Ali Khan
Published: June 2019

Tremendous proliferation in data generation in the past few years has paved the way for new research and the development of new and improved techniques and algorithms in different fields of science and education. Initially terms like educational data mining emerged as a branch of data mining borrowing techniques from its ancestor. The challenges brought about by this large and heterogeneous data are diverse and needs a greater serious technical treatment. New and emerging fields like learning analytics have been introduced to manage the complexities of this data deluge. Learning analytics deals with data in the context of learner and the learning environment to improve the overall learning experience.  The ultimate aim of the field is to make use of the data about learners and their environments to gain insights into the learning process using some of the well-known techniques and algorithms from the fields of data mining and machine learning.  The process involves collecting, analysis of data and reporting the results to understand and optimize the learning experience.  The fields of data mining and academic analytics closely related to learning analytics. Systematic Literature Review (SLR) is a robust, organized and rigorous literature review and reporting process aimed at identifying, collecting and synthesizing the relevant literature on a research question according to specified criteria. The process is more unbiased and balanced by systematic sequence of steps. This paper presents a systematic literature review by first developing the systematic literature review protocol and then discussing the main findings of the literature review by especially focusing on the applications and uses of machine learning and data mining techniques in the domain of learning analytics.

 

Index Terms—Systematic Literature Review (SLR), Learning Analytics (LA), Big Data, Educational Data Mining (EDM), Machine Learning (ML).
El Catálogo General del Patrimonio Histórico Andaluz en las hoyas de Guadix y Baza.
Authors: Viñuales Meléndez Olga , Montejo Ráez Alfonso
Published: June 2019

Resumen no disponible
The Coping Mechanism (Source) in Mothers Who Have Baby Blues Syndrome In The Hospital. Elim Rantepao
Authors: Tulak Lulu Alang , Yusriani Yusriani , Idris Fairus Prihatin
Published: June 2019

Maternity blues classified as mild psychological disorders that are sometimes experienced by postpartum mothers. To cope with maternity blues, the mother can adopt coping mechanisms. This study aims to determine coping mechanisms in mothers who experienced maternity blues in Elim Rantepao Hospital. Type this study is a qualitative study with descriptive approach. The participants consisted of five main informants that mothers who experienced maternity blues, 3 participants support (family), and one key participant (midwife who cared for). Research results obtained show that how mother cope with stress is also highly dependent on the resources available, such as family support mothers serve as the source of the greatest coping, besides spiritual beliefs, social support, balance of energy and material, also used as a source her coping. But things are different are obtained, is heir belief or trust in which the mother perform rituals or believe to get a peace, for that in the face of maternity blues, it needed the support of the coping resources that mothers do not continue in conditions more severe disorders.
Gestão dos acidentes e incidentes de trabalho em serviços de saúde
Authors: Martins Victor Hugo da Silva , Lima Kedma de Magalhães , Belfort Lucas Rafael Monteiro , Souza Fernanda Emília Xavier de , Bezerra Nadyr Cristina
Published: June 2019

Saúde ocupacional consiste na promoção de condições laborais que garantam o mais elevado grau de qualidade de vida no trabalho, protegendo a saúde dos trabalhadores, promovendo o bem-estar físico, mental e social, prevenindo e controlando os acidentes e as doenças através da redução das condições de risco. Os problemas mais frequentes dos profissionais que lidam com a saúde ocupacional são as fraturas, os cortes e as distensões por acidentes no trabalho, os distúrbios por movimentos repetitivos, os problemas de visão e de audição e as doenças causadas pela exposição a substâncias anti-higiênicas ou radioativas. Também se podem deparar com o stress causado pelo trabalho ou pelas relações laborais. A saúde ocupacional é um tema importante para os governos, os quais devem garantir o bem-estar dos trabalhadores e o cumprimento das normas no âmbito do trabalho. Objetivamos revisar como ocorrem as inspeções periódicas nos diversos setores da saúde, de modo a determinar as condições mediante as quais são desenvolvidos os vários tipos de atividades laborais. Assim, faz-se importante considerar como atua a gestão de acidentes de trabalho dentro das empresas que prestam serviço de saúde. Através da revisão foi possível observar que, além do reconhecimento das falhas técnicas de segurança, ocorre falta na gestão de segurança do sistema, que precisam ser consideradas no elenco de recomendações de prevenção a serem apresentadas à empresa no desfecho da intervenção de vigilância, e assim, registar, tratar, analisar e definir planos de melhoria para diminuir acidentes e incidentes de trabalho nas empresas do setor de saúde.
Estudo do processo corrosivo e prospecção da vida útil do aço API 5L X70 com e sem revestimento de nióbio em solo quimicamente tratado
Authors: França Fernanda Menezes , Souza Gustavo Victor , Guedes Fabrícia Nunes de Jesus
Published: June 2019

A diversidade do emprego do aço corrobora a sua grande importância para a sociedade. Devido à sua versatilidade e o seu amplo campo de atuação, o aço pode ser utilizado submerso no solo na construção de extensas tubulações, minerodutos e tanques para o transporte de combustíveis. O constante contato entre a tubulação de aço e o solo, com o passar do tempo, torna-o exposto à ação corrosiva. Em decorrência, são envolvidos custos diretos elevados com inspeção, manutenção e a substituição de peças, e custos indiretos devido a problemas de saúde oriundos de contaminação, exaurimento de recursos minerais, perfurações com perdas de materiais, além de danos ambientais. O estudo dos processos corrosivos tem crescido bastante e o conhecimento tanto dos princípios da corrosão quanto da proteção anticorrosiva é fundamental na busca de soluções para mitigar os efeitos advindos da corrosão, prevenir sua ocorrência e desenvolver materiais com maior resistência. Os aços API 5L X70 são utilizados em malhas dutoviárias que transportam gases, petróleo e seus derivados onde se exige elevada resistência mecânica e à corrosão. Desta forma, estes aços são suscetíveis ao processo corrosivo, pois ficam em contato direto com diversos solos e ambientes brasileiros. No presente trabalho, avaliou-se o comportamento do aço API 5L X70 com e sem revestimento de nióbio em solo quimicamente tratado com soluções ácidas (simulando a chuva ácida) e básicas (simulando a calagem do solo). Foram empregadas técnicas como a aspersão térmica (para revestimento das amostras), ensaios experimentais de corrosão e microscopia eletrônica de varredura, com a finalidade de identificar os produtos de corrosão. Ao final, classificou-se as formas e tipos de corrosão obtidas nos corpos de prova, calculou-se a taxa de corrosão e foi avaliada a eficiência e a viabilidade técnica do revestimento com nióbio além de suas propriedades anticorrosivas. Como resultado, as amostras com revestimento em meio ácido apresentaram corrosão elevada, e as que estavam em meio básico, revelaram uma boa resitência ao processo corrosivo. Para as amostras sem revestimento, uma corrosão moderada foi evidenciada com a adição de ácido sulfúrico, enquanto que, com a adição de hidróxido de cálcio, a corrosividade foi alta.
Gerenciamento e caracterização dos recursos hídricos na comunidade do Barro Preto no município de Santa Maria de Itabira MG
Authors: Vitorino Diego Carlos Ferreira Rosa , Almeida Vinícius Geraldo , Guimarães Juliana Caroni Silva , Silva Athos Carlos , Moraes Lúcia Aparecida Rosa , Souza Gleice Kele dos Santos
Published: June 2019

Com a baixa disponibilidade de estudo sobre a situação dos recursos hídricos do povoado quilombola do Barro Preto, município de Santa Maria de Itabira MG, foram analisados em campo, parâmetros de qualidade da água, das questões do uso e ocupação do solo e algumas ações antrópicas do consumo ao descarte de esgoto no córrego do Barro Preto. Desta forma, este artigo visou analisar a gestão dos recursos hídricos da comunidade tanto para abastecimento quanto da qualidade da água do ribeirão. Para tanto, a pesquisa foi realizada de forma quali-quantitativa e descritiva, por meio de levantamentos realizados em campo sobre o uso e ocupação do solo na comunidade do Barro Preto. Assim, a observação e a pesquisa experimental foram utilizadas como coleta de dados, usando como unidade de análise o curso de água do manancial. Através da pesquisa em campo foram identificadas as formas desordenadas de uso e ocupação do solo, como a criação de gados em locais destinados a matas ciliares e a proximidade de casas ao ribeirão com descarte direto de esgoto bruto. As análises de água comprovaram a precariedade do manancial com interferências nas taxas de O², além da presença de organismos patogênicos como Escherichia Coli, que podem causar doenças à população consumidora da água do córrego do Barro Preto.
Exploring forestry options with M?ori landowners: an economic assessment of radiata pine, rimu, and m?nuka
Authors: Pizzirani Stefania , Monge Juan J , Hall Peter , Steward Gregory A , Dowling Les , Caskey Phil , McLaren Sarah J
Published: June 2019

Background: A quarter of New Zealand’s land area is currently covered in indigenous forest although only indigenous forests on private land can be harvested. In addition, planted exotic forests (~90% Pinus radiata D.Don) cover a further 7% of the land, and these form the main basis of New Zealand’s forestry industry. However, some landowners are seeking to plant a more diverse range of species (including New Zealand indigenous species) that can be managed in different ways to produce a range of products.

Methods: A “cradle-to-gate” life cycle-based economic assessment of three forestry scenarios was undertaken in collaboration with members of Ng?ti Porou, an indigenous M?ori tribe. The three scenarios were: (1) “business as usual” (i.e. intensive management of radiata pine); (2) continuous-cover forestry management of the indigenous coniferous tree species rimu (Dacrydium cupressinum Lamb.); and (3) intensive production-scale forestry of the indigenous scrub species m?nuka (Leptospermum scoparium J.R.Forst. & G.Forst.). Using a 120-year timeframe, discount rates and opportunity costs were applied and a flat- and steep-land comparative analysis was performed (for radiata pine and rimu).

Results: The Net Present Value (NPV) was calculated for each scenario and showed that, on flat land, only the m?nuka scenario is profitable. However, applications of discount rates can result in a negative NPV, as is the case with the radiata pine and rimu scenarios. On steep land, both the radiata pine and rimu steep-land scenarios have improved NPV returns due to a lower opportunity cost. On steep land, radiata pine is generally profitable with a discount rate of 6% or lower and a stumpage rate of over $100 m3 and rimu is generally profitable with a discount rate of 2% or lower and a stumpage rate of over $650 m-3.

Conclusions: This analysis demonstrates the importance of strategically considering what tree species to plant, what slope of land to plant them on, and what forest management technique to utilise. Furthermore, this analysis highlights the importance of choosing appropriate discount rates and the effect of other inherent assumptions, such as opportunity cost.
Measurement problems: contemporary discussions and models
Authors: Pronskikh V S
Published: June 2019

The review discusses the basic concepts of measurement that have existed from the end of the 19th century to the present day, such as representational theory; realistic, operationalist, conventionalist, theoretical-informational, and theoretical-operational model approaches to measurement; and their advantages and weaknesses. Such characteristics of measurement as accuracy, precision, and various aspects of their application, related to agreement among measurement results, measurements and standards, measurement and ‘true’ values, as well as internal and external reproducibility of measurements, are considered. The theoretical-operational model approach to experiment (and measurement), based on V A Fock’s three-part scheme, proposed by him for quantum mechanics, is discussed in detail using an example from the physics of elementary particles. Advantages of the last approach over the others, as well as its possible applications for determining systematic uncertainty, are examined.
Neurilemmoma of the tongue – a case report
Authors: Joseph Immanuel , Rooban Thavarajah , Elizabeth Joshua , Rao K Umadevi , Ranganathan Kannan
Published: June 2019

Schwannomas (neurilemmomas) are benign tumours of Schwann cells. They can arise from peripheral, cranial, or autonomic nerves. Malignant transformation of benign schwannoma is very rare. Schwannoma is treated by complete surgical excision. In this case report, we present the demographics and clinico-pathological profile of a case of Schwannoma in the tongue. A 40-year-old male patient presented with a slow-growing swelling beneath the tongue for the past 5 weeks. On intraoral examination, a 2.5×1.5 cm mass was seen at the ventral aspect of tongue. There was no enlargement of lymph nodes. Excisional biopsy was done under local anaesthesia. Histopathological features were suggestive of schwannoma. Despite its rarity of occurrence intra-orally, a differential diagnosis of Schwanomma should be considered for proper management as it favours good prognosis. Key Words : Schwannoma, Neurilemmoma, Schwann cells, Neurofibroma.
Estimating Milkweed Abundance in Metropolitan Areas Under Existing and User-Defined Scenarios
Authors: Johnston Mark K. , Hasle Aster F. , Klinger Karen R. , Lambruschi Marc P. , Derby Lewis Abigail , Stotz Douglas F. , Winter Alexis M. , Bouman Mark J. , Redlinski Izabella
Published: June 2019

Metropolitan areas play an undetermined role in supporting migratory monarch butterfly (Danaus plexippus) populations despite providing habitat areas rich with milkweed (Asclepias spp.), the obligate host plants for monarch larvae. Researchers from the US Geological Survey and collaborating institutions have called for an “all hands on deck” approach to establishing monarch butterfly habitat by focusing on potential contributions from all land use sectors at levels necessary to sustain the eastern migratory monarch butterfly population. To understand the current and potential contribution of milkweed stems in metropolitan areas, our research teams surveyed milkweed densities using a new “metro-transect” protocol and conducted interviews and surveys across a diverse set of stakeholder groups in four major metropolitan areas (Chicago, Minneapolis-St. Paul, Kansas City, and Austin). We developed Geographic Information System (GIS) tools that use these data to model existing milkweed stems in metropolitan areas, and to estimate the potential to add additional milkweed stems with the adoption of milkweed-friendly planting practices across different land use classes (e.g., residential, institutional, and commercial). By extrapolating metropolitan Chicago milkweed densities across US Census urbanized areas in the northern US range of the eastern monarch butterflies, we estimate that approximately 29.8 million stems of milkweed can be added under modest “enhanced” milkweed densities, and up to 271 million stems may be added under “exemplary” milkweed densities. Both estimates are derived from a two percent “adoption rate,” or landowner conversion of green spaces. These findings show that metropolitan areas provide important habitat opportunities and should be included prominently in monarch conservation strategies when working toward national goals to increase the amount of milkweed stems and monarch habitat across the Midwest. Municipal decision-makers and planners can estimate their capacity to add stems across the metropolitan landscape by identifying where the biggest opportunities exist with help from our Urban Monarch Conservation Planning Tools.
Strengthening Tourists’ Engagement in Guided Hiking and Trekking
Authors: Leister Wolfgang
Published: June 2019

Many providers in adventure travel promote organised hiking and trekking tours. Such guided tours shall be engaging for the tourists and evoke positive attitudes towards enjoying nature. We present the Trekking Engagement Profile as a tool to evaluate engagement factors of such guided tours, based on engagement research performed in a different domain, namely evaluating engagement in museums and science centres. This tool shall strengthen the guides’ soft skills and enable them to increase engagement during an ongoing arrangement. For instance, the Trekking Engagement Profile can be applied when tourists indicate that the quality of a guided tour is not entirely to their liking. We show the viability of using the Trekking Engagement Profile in a small study with guides and participants of trekking tours offered by the Norwegian Trekking Association. Further, we offer guidance and charts to promote its practical use.
Post-Harvest Regulated Deficit Irrigation in Chardonnay Did Not Reduce Yield but at Long-Term, It Could Affect Berry Composition
Authors: Prats-Llinàs Maria , Bellvert Joaquim , Mata Mercè , Marsal Jordi , Girona Joan
Published: June 2019

Future increases in temperatures are expected to advance grapevine phenology and shift ripening to warmer months, leaving a longer post-harvest period with warmer temperatures. Accumulation of carbohydrates occurs during post-harvest, and has an influence on vegetative growth and yield in the following growing season. This study addressed the possibility of adopting regulated deficit irrigation (RDI) during post-harvest in Chardonnay. Four irrigation treatments during post-harvest were applied over three consecutive seasons: (i) control (C), with full irrigation; (ii) low regulated deficit irrigation for sparkling base wine production (RDIL SP), from harvest date of sparkling base wine, irrigation when stem water potential (Ψstem) was less than −0.9 MPa; (iii) mild regulated deficit irrigation for sparkling base wine production (RDIM SP), from harvest date of sparkling base wine, irrigation when Ψstem was less than −1.25 MPa; (iv) mild regulated deficit irrigation for wine production (RDIM W), from harvest data of wine, irrigation when Ψstem was less than −1.25 MPa. Root starch concentration in full irrigation was higher than under RDI. Yield parameters did not differ between treatments, but differences in berry composition were detected. Considering that the desirable berry composition attributes of white varieties are high in titratable acidity, it would seem inappropriate to adopt RDI strategy during post-harvest. However, in a scenario of water restriction, it may be considered because there was less impact on yield and berry composition than if RDI had been adopted during pre-harvest.