Literatura académica sobre el tema "Face logging"
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Artículos de revistas sobre el tema "Face logging"
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Yang, Jian Hua, Guang Xue Zhang, Yu Feng Mao, Hao Li y Biao Yang. "An Orientation Method Fit for the Photogrammetry of the Excavating Face in a Coal Mine". Advanced Materials Research 1065-1069 (diciembre de 2014): 2239–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.2239.
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Geological logging is a fundamental technical practice in a coal mine and also one of the most important technical jobs for the production of the coal mine, having important significance for the coal mine’s safe production and source recycling. Irregular shapes of the excavating faces make current photographic geological logging mode and methods unfeasible, so this paper studies critical techniques and methods of underground excavating face photographic geological logging in coal mines and proposes a new close-range photogrammetry control method, orienting the excavating face’s stereoscopic image using the directing laser and the plumb line, and proves through experiments that the positional accuracy of this method meets the requirement of the geological logging and that this photogrammetry orientation method is suitable for geological logging of the roadway excavating face images of coal mines.
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Li, Hao, Yun Cai, Biao Yang y Ming Fei Wu. "A Fast Geological Logging Technique of Underground Coal Mines Based on Photogrammetry". Advanced Materials Research 663 (febrero de 2013): 661–67. http://dx.doi.org/10.4028/www.scientific.net/amr.663.661.
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Aiming at the deficiency of current geological logging method on the coal working face, the geological logging information system for coal mines based on digital camera is developed, integrating techniques of photogrammetry, graphic and image processing, and GIS. Emphasis is mainly placed on the fast acquisition of images from coal mining and excavation faces, photographic information processing and geological logging method, thus achieving the integrated work pattern of data acquisition, computer-aided processing and logging mapping. The experiment shows that by applying the fast geological logging technique of coal mines, the logging result which is accurate, authentic, reliable and satisfies the current requirements can be obtained, improving the work efficiency and result quality, therefore providing a new means and approach for geological logging of underground coal mines.
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Zhao, Jian Feng, Wen Hua Zeng y Min Liu. "Comparison System of Face Identification Algorithms under Application-Specific". Advanced Materials Research 268-270 (julio de 2011): 2072–76. http://dx.doi.org/10.4028/www.scientific.net/amr.268-270.2072.
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It has been the academic researching subject how to objectively compare the various face identification algorithms. This paper design a system based on the Colorado State University identification evaluation system, which can compare face identification algorithms under application-specific. First of all, introduced the old system; then taken the logging system for desktop of PC as an example, designed the comparing system of face identification algorithms under application-specific, coded the process of achieving and pre-processed data and described the steps of processing data; at last tested PCA_MahCosine, LDA_ldaSoft, Bayesian_ML, PCA_Euclidean and Bayesian_MAP five common face identification methods, conclude Bayesian_ML algorithm is the best algorithm in face recognition logging system for logging on PC desktop and give the parameter in the system, provide a sample for testing face identification algorithms under application-specific.
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Bagdanov, Andrew D., Alberto Del Bimbo, Fabrizio Dini, Giuseppe Lisanti y Iacopo Masi. "Posterity Logging of Face Imagery for Video Surveillance". IEEE MultiMedia 19, n.º 4 (octubre de 2012): 48–59. http://dx.doi.org/10.1109/mmul.2012.15.
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Gamon, T. I. y R. P. Finn. "Simplified Descriptive Scheme and Classification System for the Logging of Cut Slope Faces". Geological Society, London, Engineering Geology Special Publications 2, n.º 1 (1986): 253–60. http://dx.doi.org/10.1144/gsl.1986.002.01.46.
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AbstractA simplified descriptive scheme and classification system is currently being used for the systematic logging of cut slopes for a 22 ha site formation project in weathered granitic rocks in Hong Kong.The site formation comprises the removal of some 1.5 million m3 of soft granitic soil and 3.5 million m3 of sound rock, and the formation of approximately 60,000 m2 of slope face. The cut slope faces are logged as they are exposed, and the slope protection and stabilisation works designed and installed as the site is lowered.A simplified descriptive scheme was considered essential to reduce the time for logging and eliminate the need for specialist logging personnel.Existing descriptive schemes were compared and the most useful, compatible indices selected. Additional indices from other authors were added where appropriate. This descriptive scheme was simplified after the site investigation stage of the works and the resultant scheme checked against the faces exposed during the excavation of 300,000 m3 of weathered granite as part of the advanced works.The finalised simplified scheme was documented as a manual, which has been used on site to standardise the descriptions, abbreviations and presentation. Once logged, the exposed weathered profile is classified into zones, and the distribution of the zones compared with a number of standard profiles to rapidly assess the stability of the ‘soil’ slopes.To date, 40,000 m2 of slope face have been logged at a scale of 1:100, and appropriate slope protection and stabilisation works designed and installed.
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Xing, Xiang, Feng Cai y Wang Shui Hu. "Research on Sedimentary Facies of Formation of Neogene in Oilfield". Applied Mechanics and Materials 340 (julio de 2013): 920–23. http://dx.doi.org/10.4028/www.scientific.net/amm.340.920.
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The paper studied the sedimentary system of No.1 and No.2 structure in Nanpu oil field with methods of geological, logging, seismic and chemical analysis, associated with core characteristics, sedimentary structure, profile structure and logging facies. The results demonstrate the following three points. First, Minghuazhen Formation in Nanpu field is meandering river sedimentary, and the channel subphase can be further divided into channel bottom lag deposits, beach, abandoned channel and natural levee. Second, the isopach and sedimentary face map of Minghuazhen Formation are generated based on each well's thickness of sand body and curve characteristics, and show the trend of North West and South West distribution. Third, sand body distribution can be predicted though spatial distribution of sedimentary face. And linear reservoir and Barrage-type reservoir are the two typical zones of Minghuazhen Formation.
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Mozahem, Najib Ali. "Using Learning Management System Activity Data to Predict Student Performance in Face-to-Face Courses". International Journal of Mobile and Blended Learning 12, n.º 3 (julio de 2020): 20–31. http://dx.doi.org/10.4018/ijmbl.2020070102.
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Higher education institutes are increasingly turning their attention to web-based learning management systems. The purpose of this study is to investigate whether data collected from LMS can be used to predict student performance in classrooms that use LMS to supplement face-to-face teaching. Data was collected from eight courses spread across two semesters at a private university in Lebanon. Event history analysis was used to investigate whether the probability of logging in was related to the gender and grade of the students. Results indicate that students with higher grades login more frequently to the LMS, that females login more frequently than males, and that student login activity increases as the semester progresses. As a result, this study shows that login activity can be used to predict the academic performance of students. These findings suggest that educators in traditional face-to-face classes can benefit from educational data mining techniques that are applied to the data collected by learning management systems in order to monitor student performance.
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Stassen, Gerrit, Christopher Grieben, Ingo Froböse y Andrea Schaller. "Engagement with a Web-Based Health Promotion Intervention among Vocational School Students: A Secondary User and Usage Analysis". International Journal of Environmental Research and Public Health 17, n.º 7 (25 de marzo de 2020): 2180. http://dx.doi.org/10.3390/ijerph17072180.
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Engagement with web-based interventions is both generally low and typically declining. Visits and revisits remain a challenge. Based on log data of a web-based cluster randomized controlled trial conducted in vocational schools, the present secondary analysis aimed to identify influencing factors on initially logging in to a health promotion platform among young adults and to examine the engagement over the course of an eight-week intervention. Data of 336 students (62.2% female, age span 18–25) from two intervention arms (web-based intervention and web-based intervention with an additional initial face-to-face contact) was included. Binary logistic regression and log-data visualization were performed. An additional initial face-to-face contact (odds ratio (OR) = 2.971, p = 0.005), female sex (OR = 2.237, p = 0.046) and the health-related skill “dealing with health information” (OR = 2.179, p = 0.030) significantly increased the likelihood of initially logging in. Other variables showed no influence. 16.6% of all potential users logged in at least once, of which 57.4% revisited the platform. Most logins were tracked at the beginning of the intervention and repeated engagement was low. To increase the engagement with web-based interventions, health-related skills should be fostered. In addition, a strategy could be to interlink comparable interventions in vocational schools more regularly with everyday teaching through multi-component interventions.
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Wiryadinata, Romi, Raya Sagita, Siswo Wardoyo y Priswanto Priswanto. "Pengenalan Wajah Pada Sistem Presensi Menggunakan Metode Dynamic Times Wrapping, Principal Component Analysis dan Gabor Wavelet". Dinamika Rekayasa 12, n.º 1 (6 de febrero de 2016): 1. http://dx.doi.org/10.20884/1.dr.2016.12.1.138.
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<p align="justify">Presensi is a logging attendance, part of activity reporting an institution, or a component institution itself which contains the presence data compiled and arranged so that it is easy to search for and used when required at any time by the parties concerned. Computer application developed in the presensi system is a computer application that can recognize a person's face using only a webcam. Face recognition in this study using a webcam to capture an image of the room at any given time who later identified the existing faces. Some of the methods used in the research here is a method of the Dynamic Times Wrapping (DTW), Principal Component Analysis (PCA) and Gabor Wavelet. This system, used in testing with normal facial image expression. The success rate of the introduction with the normal expression of face image using DTW amounting to 80%, 100% and PCA Gabor wavelet 97%</p>
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Hartman, G. F., J. C. Scrivener y T. E. McMahon. "Saying That Logging is Either 'Good' or 'Bad' for Fish Doesn't Tell You How to Manage the System". Forestry Chronicle 63, n.º 3 (1 de junio de 1987): 159–64. http://dx.doi.org/10.5558/tfc63159-3.
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A 16-year multi-disciplinary watershad study at Carnation Creek, British Columbia, revealed that different activities in a forest harvest program had different impacts on the physical and biological components of the system. Changes in stream temperature, as a result of logging and a climatic warming trend, and changes in the distribution and volume of woody debris in the channel caused complex sequence of processes to influence salmonid production in both a positive and negative manner. The influence depended on the type of physical change, the fish species and its life history stage, and on the elapsed time after the logging activity. Some direct implications of the research to the problems of managing in the face of complexity are discussed.
Tesis sobre el tema "Face logging"
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Montouroy, Yves. "Enjeux forestiers globalisés et territoires : les acteurs européens face à la régulation politique multiscalaire". Thesis, Bordeaux 4, 2012. http://www.theses.fr/2012BOR40034/document.
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La thèse a pour objectif de participer à l’étude de l’Union européenne et à celle des relations internationales en ciblant spécifiquement la régulation du secteur forêt-bois-papier. La question de fond est de savoir comment la gestion des forêts est construite en problème public européen. Prenant acte d’un agenda mondial qui donne à voir un problème forestier globalisé et des processus de gouvernance opposant multilatéralisme et acteurs transnationaux, la thèse propose de porter la focale sur les acteurs européens qui définissent et politisent les enjeux forestiers selon leur propre relation à la ressource. Pour ce faire, le travail de recherche s’appuie sur une hypothèse centrale selon laquelle l’institutionnalisation des territoires forestiers constitue une ressource d’action publique pour les acteurs face à la régulation politique multiscalaire. Afin de mettre en avant la capacité des acteurs européens à circuler parmi les échelles de régulation pour participer à la construction des politiques publiques sectorielles, la thèse s’appuie sur un cadre théorique empruntant aux Théories des relations internationales et à l’Analyse des politiques publiques. Forte d’une telle grille d’analyse sociologisée, une seconde partie s’articule autour de trois études de cas de politiques européennes de la forêt (la protection des forêts contre les feux, la valorisation énergétique de la biomasse forestière et la lutte contre le commerce international de bois illégal). Au total, elles montrent toutes trois la capacité des acteurs locaux à territorialiser des enjeux globalisés de gestion d’une ressource naturelleThis work aims at contributing to the study of the European Union and International Relations. Through analyzing the regulation of forest-based industries and the globalization of forest issues, the aim is to identify how both have been constructed as a European public problem. This is implemented around a central hypothesis: forest territories are institutionalized by actors who participate in its regulation. In order to ascertain the ability of actors to move between scales of regulation, the thesis is grounded on theoretical tools derived from the Theories of international relations and Public policy analysis. After a first part dedicated to defining this approach, a second is presents three case studies of European public policy (forest protection against fire, t renewable energy and actions to counter the trade of illegal wood). In sum, each one shows the ability of actors to territorialize a globalized forest issue
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MATEUS, CRISLENE. "Radônio como indicador de contaminação ambiental por hidrocarbonetos em fase livre". reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26610.
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As áreas contaminadas por NAPL (Non-Aqueous Phase-Liquids ou fase líquida não aquosa ou ainda fase livre) podem causar riscos à saúde humana e aos ecossistemas, restrições para o desenvolvimento urbano e diminuição do valor imobiliário das propriedades. Este trabalho utilizou o gás radônio como um indicador para a análise de gás subsuperficial do solo, uma vez que este gás nobre apresenta boa solubilidade em uma ampla gama de NAPL, sendo parcialmente retido na contaminação NAPL. Portanto, uma diminuição da atividade de gás radônio no solo contaminado pode ser esperada, devido à elevada capacidade de particionamento do radônio em NAPL, o que permite que o NAPL retenha uma parte do radônio anteriormente disponível nos poros do solo. O levantamento foi realizado em uma indústria abandonada, contaminada por NAPL pouco volátil, localizada na zona sudeste da cidade de São Paulo, entre junho de 2014 e maio de 2015. A concentração de radônio foi avaliada pela metodologia de detecção passiva com detectores sólidos de traços nucleares (SSNTD) tipo CR-39 em dez estações de monitoramento instaladas na área contaminada investigada e nomeadas de A até J. A média das concentrações de atividade de radônio para as oito estações de monitoramento em locais supostamente não contaminados variou de (22 ± 4) kBq.m-3 a (39 ± 4) kBq.m-3. Para as duas estações de monitoramento supostas como locais contaminados, as concentrações de radônio foram (1,4 ± 0,4) kBq.m-3 e (13 ± 9) kBq.m-3. Os resultados demonstraram que o método utilizado foi consistente com as técnicas convencionais de investigação ambiental para a maioria das estações de monitoramento em diferentes estações do ano. Resultados obtidos com CR-39 variam ao longo dos períodos de exposição, devido à sazonalidade. Não foi observada relação entre as oscilações das concentrações de atividade de radônio e o volume de chuva acumulada nos diferentes períodos de exposição dos detectores CR-39. As menores concentrações de atividade do 222Rn ocorreram nas estações de monitoramento G e H e verificou-se por espectrometria gama, que a baixa atividade não está relacionada à concentração de atividade de seu pai 226Ra na série do decaimento radioativo do 238U, reforçando a teoria de retenção do gás radônio nos locais contaminados por NAPL. Resultados da etapa de remediação comprovaram que a técnica utilizada neste trabalho foi mais eficiente que as técnicas convencionais de investigação ambiental, especialmente para as estações de monitoramento D e G na área contaminada investigada.
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
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DINI, FABRIZIO. "Target detection and tracking in video surveillance". Doctoral thesis, 2010. http://hdl.handle.net/2158/574120.
Texto completoLibros sobre el tema "Face logging"
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Bugnet, Anne. Perceptions des chasseurs d'orignaux face à l'exploitation forestière en Abitibi-Témiscamingue. Québec: Direction de la faune et des habitats, Service de la faune terrestre, 1998.
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Francis, Turcotte, ed. Réactions du tétras du Canada (Dendrapagus [i.e. Dendragapus] canadensis) face à l'exploitation forestière en forêt boréale. Québec: Gouvernement du Québec, Ministère de l'environnement et de la faune, Direction de la faune et des habitats, 1994.
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Office, General Accounting. Canadian timber: Cost and pricing data for timber harvested in British Columbia : fact sheet for the Vice Chairman, Joint Economic Committee, U.S. Congress. Washington, D.C: U.S. General Accounting Office, 1986.
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Institute, Oregon Forest Resources, ed. Forest fact book: Answers to frequently asked questions about forests and forestry in Oregon. Portland, Or: Oregon Forest Resources Institute, 1999.
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Office, General Accounting. Forest Service: Difficult choices face the future of the recreation program : report to the chairman, Subcommittee on National Parks and Public Lands, Committee on Interior and Insular Affairs, House of Representatives. [Washington, D.C.]: GAO, 1991.
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Office, General Accounting. Federal land management: The extent of oil and gas activities on BLM and Forest Service lands : fact sheet for congressional requesters. Washington, D.C: The Office, 1990.
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Michel, Jean-Baptiste. UNCHARTED: Big data as a lens on human culture. New York, USA: Riverhead Books, 2013.
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Office, General Accounting. Forest service: Distribution of timber sales receipts fiscal years 1992-94 : fact sheet for the Ranking Minority Member, Subcommittee on Interior and Related Agencies, Committee on Appropriations, House of Representatives. Washington, D.C. (700 4th St., N.W., Washington 20548-0001): The Office, 1995.
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Hendriks, Thomas. Rainforest Capitalism. Duke University Press, 2022. http://dx.doi.org/10.1215/9781478022473.
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Congolese logging camps are places where mud, rain, fuel smugglers, and village roadblocks slow down multinational timber firms; where workers wage wars against trees while evading company surveillance deep in the forest; where labor compounds trigger disturbing colonial memories; and where blunt racism, logger machismo, and homoerotic desires reproduce violence. In Rainforest Capitalism Thomas Hendriks examines the rowdy world of industrial timber production in the Democratic Republic of the Congo to theorize racialized and gendered power dynamics in capitalist extraction. Drawing on ethnographic fieldwork among Congolese workers and European company managers as well as traders, farmers, smugglers, and barkeepers, Hendriks shows how logging is deeply tied to feelings of existential vulnerability in the face of larger forces, structures, and histories. These feelings, Hendriks contends, reveal a precarious side of power in an environment where companies, workers, and local residents frequently find themselves out of control. An ethnography of complicity, ecstasis, and paranoia, Rainforest Capitalism queers assumptions of corporate strength and opens up new ways to understand the complexities and contradictions of capitalist extraction.
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Groenendijk, Jessica, Frank Hajek, Paul J. Johnson y David W. Macdonald. Giant otters: using knowledge of life history for conservation. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198759805.003.0022.
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The giant otter is an endangered South American carnivore with a facultatively cooperative social system that may be affected by local ecology. This chapter synthesises demographic data arising from a 16 year study of a population inhabiting patchily distributed and resource-rich oxbow lakes in the floodplain of Manu National Park, in the Department of Madre de Dios, Peru. It explores how giant otter group size and composition relates to territory size, and how reproductive success is affected by territory quality. The chapter concludes with a discussion on the implications of these findings for giant otter conservation in southeastern Peru, in the face of increased human/giant otter conflict; tourism; and mining, logging and agricultural pressures, and highlights the need for a giant otter habitat conservation corridor along the Madre de Dios River.
Capítulos de libros sobre el tema "Face logging"
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do Nascimento Dias, Bárbara. "Munduruku Cosmopolitics and the Struggle for Life". En Indigenous and Minority Populations - Perspectives From Scholars and Writers across the World [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.109926.
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The mythical narratives of the Munduruku people in the Tapajós region are permeated by metamorphic transformations from humans to nonhuman beings into vegetables, animals, or spirits. Today, while these beings live as other forms in the world they still have an agency in the lives of humans and can intervene directly in the social life of the villages. The Munduruku strategies used to negotiate with these beings undergo ritualized actions that are also part of everyday life. Most of these actions are intended to bring joy to the spirits, who in return provide them with an abundance of food from the fields, hunt, and fish. This cosmopolitical relationship with these beings, however, is today threatened in the face of logging and mining operations that are advancing on indigenous lands. The pursuit of the defense and demarcation of the territory, in this sense, is intrinsically linked to the sacred places and to nonhuman beings that help to direct the strategies of struggle and political resistance. Thus, the war that the Munduruku people face is to protect the multiple worlds or existing plans, the multiple histories and scenarios where they live.
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Van Pham, Hai y Philip Moore. "A Proposal for Information Systems Security Monitoring Based on Large Datasets". En Research Anthology on Artificial Intelligence Applications in Security, 1399–409. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7705-9.ch062.
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This article describes how the objective of recent advances in soft computing and machine learning models is the resolution of issues related to security monitoring for information systems. Most current techniques and models face significant limitations, in the monitoring of information systems. To address these limitations, the authors propose a new model designed to detect potential security breaches at an early stage using logging data. The proposed model uses unsupervised training techniques with a rule-based system to analyse data file logs. The proposed approach has been evaluated using a case study based on the learning of data file logs to determine the effectiveness of the proposed approach. Experimental results show that the proposed approach performs well, the results demonstrate that the proposed approach performs better than other conventional security methods in the identification of the correct decisions related to potential security in information systems.
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Van Pham, Hai y Philip Moore. "A Proposal for Information Systems Security Monitoring Based on Large Datasets". En Research Anthology on Artificial Intelligence Applications in Security, 1399–409. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7705-9.ch062.
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This article describes how the objective of recent advances in soft computing and machine learning models is the resolution of issues related to security monitoring for information systems. Most current techniques and models face significant limitations, in the monitoring of information systems. To address these limitations, the authors propose a new model designed to detect potential security breaches at an early stage using logging data. The proposed model uses unsupervised training techniques with a rule-based system to analyse data file logs. The proposed approach has been evaluated using a case study based on the learning of data file logs to determine the effectiveness of the proposed approach. Experimental results show that the proposed approach performs well, the results demonstrate that the proposed approach performs better than other conventional security methods in the identification of the correct decisions related to potential security in information systems.
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O. Olorunnisola, Abel. "The Past, Present and Future Outlook of the Wood Industry in Nigeria". En Wood Industry - Past, Present and Future Outlook. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.105794.
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Nigeria’s vegetational diversity ranging from mangrove swamp along the southern coast through freshwater swamp, lowland rainforest and savanna, progressively into the interior of the country makes possible the growth of over 560 indigenous species of tropical hardwoods, many of which grow to merchantable dimensions. Hence, wood processing for domestic consumption and exportation played a vital role in the Nigerian economy from the late 1700s up till early 1970s, with the 1960s often referred to as the golden age of Nigerian forestry. However, due to forest resources mismanagement, infrastructural deficiencies, economic recession and other factors, the industry fell on hard times beginning from the mid-1970s. While primary wood processing establishments including timber logging, sawmilling and charcoal making managed to survive, virtually all the secondary wood processing factories, excluding those involved in furniture production, became defunct by the year 2000. Although a set of newer medium-sized plywood and match production factories have emerged in recent years, massive importation of secondary wood products has become inevitable in the face of rapid population growth, urbanization, deforestation and desertification. This chapter discusses the past, the present and the future of the wood industry in Nigeria.
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Koh, Elizabeth. "Online Education and Cultural Background". En Encyclopedia of Multimedia Technology and Networking, Second Edition, 1080–85. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch146.
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Online education is growing rapidly. Online education is a Web-based form of education where students gain access to online materials and communicate with instructors and other students. There are four distinguishing characteristics that separate it from e-learning and other modes of learning (Paulsen, 2003). First, there is a physical separation of teachers and learners in online education. This differentiates it from face-toface education. Second, online education is regulated or instituted by an educational organization, hence disqualifying it from the self-study mode of learning. Third, educational content is distributed over a computer network, unlike e-learning, which includes educational content distributed by CD-ROMS and DVD-ROMS. Fourth, students and instructors communicate with each other over a computer network. There is a twoway flow of information which is not always available in e-learning. Indeed, the communicative element is a unique feature of online education and is an extension of the individualized experience of earlier technologies (Piccoli, Ahmad, & Ives, 2001). Not solely an interaction between the student and the system, online education allows communication between peers and instructors and even collaborative learning communities. Online education also provides high levels of student control and supports participant contact and interaction continuously during the learning process. There are different levels of “onlineness” (Hosie & Schibeci, 2005). The most basic level is Web supplemented. It is optional for students to interact with the education content, and to communicate with instructors and other students. These online learning resources are a component in addition to their face-to-face learning. The intermediate level is Web dependent. Students need to participate online as part of the course requirement, besides some face-to-face component. Students should utilize the online education content, which includes course descriptions, study guides, examination details, assessment overview, reading lists, and online quizzes. Also, students are expected to interact with lecturers and peers by participating in the online discussion forum or other computer-mediated communications (CMC). This is the most popular form of online education today. The advanced level is fully online. This final level requires no face-to-face meetings with the students. Education content, learning activities, assessment, and support services can only be referred to vis-à-vis the computer network. Distance education could occur in this manner, but the term “distance education” also includes the use of other types of media which may not be electronic. Online education is supported by various systems. The core system in most educational institutes is the learning management system or the virtual learning environment. Learning management systems grant access to online learning resources for students and instructors; they register users, provide communication tools for users, manage courses, evaluate learners, and provide administrative reports (Paulsen, 2003). They can be commercial software like Blackboard or developed in-house. Online education can also require library and digital resources, learner support services, accounting, security, the Internet and e-commerce technology, which may be integrated with the core system Online educational technologies can be categorized into synchronous or asynchronous. Synchronous applications require users to be available at the same time. They include networked group decision support systems (GDSS), e-meetings, e-conferences, and features like whiteboards, text-based chat, and video conferencing. Asynchronous technologies are time independent and comprise discussion boards or Web boards, document repositories, Web logging, podcast audio content, and Web cast lectures.
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"6 The Public Face of Justice". En Cellini's Perseus and Medusa and the Loggia dei Lanzi, 109–26. BRILL, 2015. http://dx.doi.org/10.1163/9789004296787_007.
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Atkinson, Martin E. "Skin and fascia". En Anatomy for Dental Students. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199234462.003.0013.
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Skin is a specialized boundary tissue which forms the entire external surface of the body and is continuous with mucosa lining the respiratory, gastrointestinal, and urinogenital tracts at their respective openings. Skin is the largest organ in the body but is often overlooked in this respect. Skin has many functions, some of which are not immediately obvious. • It minimizes damage from mechanical, thermal, osmotic, chemical, and sunlight insults. • It forms a barrier against microorganisms. • It has a major function in thermoregulation. • It is a sensory surface equipped with touch, pressure, temperature, and pain receptors. • It has good frictional properties useful in locomotion and handling objects. • It is waterproof. • It is the site of vitamin D synthesis. • It also plays a role in non-verbal communication when we blush, alter our facial expression, or use tactile communication such as touching or kissing. Skin has two distinct parts when seen under a microscope, the superficial epidermis and the deeper dermis. The epidermis is a surface epithelium in which the outer cells are keratinized. Keratinization is the deposition of tough mats of keratin which are intracellular fibrous proteins that make the cells tough; keratinization also kills the superficial cells so the outer layers of your skin are dead. The epidermis varies in thickness. The thickest and most heavily keratinized areas are on the soles of the feet and palms of the hands whereas the epidermis on the face and back of the hand is much thinner and less heavily keratinized. Habitual activity, such as holding a pen, digging with a shovel or using scissors, may produce localized thickenings of thick skin by increasing the thickness of keratin to produce calluses. Cells below the keratin layer have a special coating that forms a permeability barrier, preventing water moving between cells, thus preventing water loss from the body and water-logging when exposed to water. Epithelium does not contain blood vessels, which is why you do not bleed when you lightly knock your skin. To bleed, you need to expose the blood vessels that lie in the dermis and supply the overlying epidermis by diffusion of nutrients through fenestrated capillaries.
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Gupta, Brij B., Somya Ranjan Sahoo, Vaibhav Bhatia, Adil Arafat y Abhik Setia. "Auto Fill Security Solution Using Biometric Authentication for Fake Profile Detection in OSNs". En Handbook of Research on Intrusion Detection Systems, 237–62. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2242-4.ch012.
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This chapter discusses a model that allows the user to access social networking sites through login using smart phone-based biometric authentication. Currently, social networking websites permit the user to access their page through login and some sites provide auto fill system to login into users account through browser by permit. The browser saves the password in password protected space and automatically auto fills the password to access the account by user. This facility is not highly reliable due to the auto fill system for laptop users. When someone uses the laptop of others and visits any website, the auto fill system opens the content with saved password. Secondly, elderly people have problems logging into today's websites. To remember the password for every account is very difficult for elderly people. This chapter describes a model for security and authenticity. Authors used a hybrid model with android as the application with fingerprint authentication and chrome extension as the auto fill process for user access.
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Aikins, Stephen K. "Practical Measures for Securing Government Networks". En Handbook of Research on Public Information Technology, 386–94. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59904-857-4.ch037.
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The modern network and Internet security vulnerabilities expose state and local government networks to numerous threats such as denial of service (DoS) attacks, computer viruses, unauthorized access, confidentiality breaches, and so forth. For example, in June 2005, the state of Delaware saw a spike of 141,000 instances of “suspicious activity” due to a variant of the mytopb worm, which could have brought the state’s network to its knees had appropriate steps not been taken (Jarrett, 2005; National Association of State Chief Information Officers [NASCIO], 2006b). On an average day, the state of Michigan blocks 22,059 spam e-mails, 21,702 e-mail viruses, 4,239 Web defacements, and six remote computer takeover attempts. Delaware fends off nearly 3,000 attempts at entering the state’s network daily (NASCIO, 2006b). Governments have the obligation to manage their information security risks by securing mission- critical internal resources such as financial records and taxpayer sensitive information on their networks. Consequently, public-sector information security officers are faced with the challenge to contain damage from compromised systems, prevent internally and Internet-launched attacks, provide systems for logging and intrusion detection, and build frameworks for administrators to securely manage government networks (Oxlenhandler, 2003). This chapter discusses some of the cost-effective measures needed to address government agency information security vulnerabilities and related threats.
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McClain, Michael. "The Relevance of Biogeochemistry to Amazon Development and Conservation". En The Biogeochemistry of the Amazon Basin. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195114317.003.0004.
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To read the press of recent years, one might imagine that the fate of the world rests in the hands of those who would develop the Amazon basin. Waves of incoming colonists are blamed for the bulk of the deforestation and development (Schomberg 1998), but Asian logging firms, multinational oil companies, and gold miners are also portrayed as destructive agents hacking down the forest, systematically undermining its biodiversity, and severely contaminating its myriad ecosystems (Althaus 1996, Ferreira 1996, James 1998). The effects of these varied threats are regularly broadcast in alarming tones. Rueters News Service warned in January 1998 that “Brazil’s Amazon rain forest, the world’s richest trove of biological diversity and source of much of the Earth’s oxygen, continues to be ravaged” (Craig 1998). And, in April 1999, a writer for the Associated Press communicated the “fear” of unspecified scientists that “damage to the rain forest... could throw the Earth’s climate out of balance” (Donn 1999). Clearly, the fate of the Amazon and the implications of its fate to the overall Earth system are topics of enormous scientific and popular interest. While there is little disagreement that the complete destruction of Amazon forests would be catastrophic, what about partial deforestation of the region? How much, and which parts, of the Amazon can be converted to sustainable human land uses without compromising the ecological integrity of the conserved areas? How might this development impact regional climate, adjoining coastal systems, and overall global processes? Answers to these volatile questions remain elusive and seemingly endless strands of controversy swirl about them. At the heart of the matter, yet largely beyond the public discussion, are biogeochemical cycles that support and regulate the functioning of the Amazonia’s biological systems. Moreover, it is the incomplete understanding of these cycles that promotes uncertainty and feeds the controversy. The purpose of this book is to present a coherent assessment of our current understanding of the biogeochemical functioning of the Amazon basin. Although it is surely presumptuous to assume that this presentation will shed sufficient light on the uncertainties to eliminate the current controversies, we hope that it will provide a basis for lifting the discussion to a higher level.
Actas de conferencias sobre el tema "Face logging"
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Del Bimbo, A., F. Dini y G. Lisanti. "A real time solution for face logging". En 3rd International Conference on Imaging for Crime Detection and Prevention (ICDP 2009). IET, 2009. http://dx.doi.org/10.1049/ic.2009.0238.
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Wang, Rui, Andrew T. Campbell y Xia Zhou. "Using opportunistic face logging from smartphone to infer mental health". En the 2015 ACM International Joint Conference. New York, New York, USA: ACM Press, 2015. http://dx.doi.org/10.1145/2800835.2804391.
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Gaikwad, Bipin, PVBSS Prakash y Abhijit Karmakar. "Edge-based real-time face logging system for security applications". En 2021 12th International Conference on Computing Communication and Networking Technologies (ICCCNT). IEEE, 2021. http://dx.doi.org/10.1109/icccnt51525.2021.9579758.
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Basilio, John Kenneth, Jerome Maniacup y Jesus Martinez. "Face Mask and Face Shield Detection Using Image Processing with Deep Learning and Thermal Scanning for Logging System". En 2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM). IEEE, 2021. http://dx.doi.org/10.1109/hnicem54116.2021.9731972.
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Naveena-Chandran, Rohin, Farrukh Hamza, Gibran Hashmi, Jason Rogers, John Meyer y Sara Chapman. "ENHANCING THE UNDERSTANDING OF ASPHALTENE PRECIPITATION: A NOVEL APPROACH UNDER IN-SITU CONDITIONS". En 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0012.
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Flow assurance is a vital challenge that affects the viability of an asset in all oil producing environments. A proper understanding of asphaltene precipitation leading to deposition lends itself to reliable completions planning and timely remediation efforts. This ultimately dictates the production life of the reservoir. The Wireline Formation Tester (WFT) has traditionally aided the understanding of asphaltene composition in reservoir fluids through the collection of pressurized fluid samples. Moreover, the use of Downhole Fluid Analysis (DFA) during a fluid pumpout has augmented the understanding of soluble asphaltenes under in-situ flowing conditions. However, an accurate and representative measurement of Asphaltene Onset Pressure (AOP) has eluded the industry. Traditionally, this measurement has been determined post-acquisition through different laboratory techniques performed on a restored fluid sample. Although sound, there are inherent challenges that affect the quality of the results. These challenges primarily include the need to restore samples to reservoir conditions, maintaining samples at equilibrium composition, and the destruction of fluid samples through inadvertent asphaltene precipitation during transporting and handling. Hence, there is a need for WFT operations to deliver a source of reliable analysis, particularly in high-pressure/high-temperature (HP/HT) reservoirs, to avoid costly miscalculations. A premiere industry method to determine AOP under in-situ producible conditions is presented. Demonstrated in a Gulf of Mexico (GOM) reservoir, this novel technique mimics the gravimetric and light scattering methods, where a fluid sample is isothermally depressurized from initial reservoir pressure; simultaneously, DFA monitors asphaltene precipitation from solution and a high-precision pressure gauge records the onset of asphaltene precipitation. This measurement is provided continuously and in real time. An added advantage is that experiments are performed individually after obtaining a pressurized sample in distinct oil zones. Therefore, the execution of this downhole AOP experiment is independent of an already captured fluid sample and does not impact the quality of any later laboratory-based analysis. Once the measurements are obtained, these can be utilized in flow assurance modeling methods to describe asphaltene precipitation kinetics, and continuity of complex reservoirs. For the first time in literature, this study applies these modeling methods in combination with the AOP data acquired from a downhole WFT This approach has the potential to create a step change in reservoir analysis by providing AOP at the sand-face, along with insight that describe performance from asphaltene precipitation. The results of which have tremendous economic implications on production planning.
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Bloemenkamp, Richard, Elia Haddad, Nadege Bize-Forest, Laetitia Comparon y Peter Schlicht. "FIELD-TESTING A THROUGH-THE-BIT HIGH-DEFINITION ELECTRICAL BOREHOLE IMAGER FOR OIL-BASED MUD". En 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0009.
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A new, through-the-bit, ultra-slim wireline borehole-imaging tool for use in oil-based mud provides photorealistic images. The imager is designed to be conveyed through drill-pipe. At the desired well section, it exits the drill pipe through a portal drill bit and starts the logging. Field test measurements in several horizontal, unconventional wells in North America show images of fine detail with a large amount of geological information and high value for well development. A relatively new solution for conveying tools to the deepest point of a high angle or horizontal wells uses a drill bit with a portal hole at the bit face. As soon as the bit reaches the total depth, a string of logging tools is pumped down through the drill pipe. The tools exit the bit through the portal hole, arriving in the open hole and are ready for the up log. The tools operate on battery and store the log data in memory so that no cable is interfering as the drill pipe is tripped out of the well while the tools are acquiring data. The quality of wireline electrical borehole images in wells drilled with oil-based mud has significantly improved in recent years. Modern microresistivity imagers operate in the megahertz-frequency range, radiating the electromagnetic signal through the non-conductive mud column. A composite processing scheme produces high-resolution impedivity images. The new, ultra-slim borehole-imager tool uses these measurement principles and processing methods. Innovating beyond the existing tool designs the tool is now re-engineered to dimensions sufficiently slim to fit through drill pipes and to use through-the-bit logging techniques. The new, ultra-slim tool geometry proves highly reliable and, due to the deployment technique, highly effective in challenging hole conditions. The tool did not suffer any damage and showed only minute wear over more than twenty field test wells. The tool’s twelve-pad geometry provides 75% coverage in a six-inch diameter borehole and its image quality compares very well with existing larger tools. The field test of this borehole imaging tool covers all scenarios from vertical to deviated and to long-reach, horizontal wells. Geological structures, sedimentary heterogeneities, faults and fractures are imaged with detail matching benchmark wireline images. The interpretation answers allow operators of unconventional reservoirs to employ intelligent stimulation strategies based on geological reality and effective well development. A new high-frequency borehole imager for wells drilled with oil-based mud is introduced. Deployed through the drill pipe and its portal bit, the imager carries photorealistic microresistivity images into wells where conventional wireline conveyance techniques reach their limits in both practicality and viability.
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Timonin, Andrey y Eldar Mollaniyazov. "Locating Source of Water Production and Performing Cost-Effective Rigless Remedial Operations in Deviated Wells Completed with Standalone Sand Screens". En SPE Eastern Europe Subsurface Conference. SPE, 2021. http://dx.doi.org/10.2118/208547-ms.
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Abstract Wells that are already drilled and producing are the most viable sources of future earnings for all oilfield operating companies. Keeping these wells producing economically at optimal rates throughout their lifetimes is top priority. With time, some oilfield operating companies face with production related problems, such us water breakthrough. Production logging is well known technique for locating source of water breakthrough in oil and gas producers. In near-vertical, or slightly deviated wells, producing at high rates, traditional production logging tool string can deliver reliable results. On the other side, in deviated wells, producing at small rates, advanced production logging tool is required, due to presence of fluid segregation and recirculation within borehole. Our experience shows that wisely selected logging technique, depending on downhole logging environment, allows to locate source of water production with confidence for planning water shut-off remedial operations. In wells completed with standalone sand screens water shut-off operation might be complicated as often rig is required for pulling out of hole tubing with sand screens. Another method is to perform chemical water shut-off treatment that might be expensive in some cases. Alternative method is to confirm compact sand accumulation in the annulus and set through tubing bridge plug inside sand screens in wells that producing water from bottommost layers. Plug is deployed in wells without pulling out of hole tubing, as it can pass through restrictions, making this rigless intervention fifty times cheaper compared to intervention with rig. Field examples, presented in this paper, describe fit-for-purpose logging approach for locating source of water production accurately and executing unique rigless water shut-off operations in cased wells completed with standalone sand screens to increase hydrocarbons production in cost-effective way. After remedial operations we observed significant decline in water production and increase in oil rates in all wells that were intervened.
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Maganov, I., Evgeniy Tihonov y V. Syunev. "ECHNOLOGICAL ASPECTS OF THE USE OF WOOD CHIPS FOR THE PRODUCTION OF ELECTRICITY AND HEAT". En Ecological and resource-saving technologies in science and technology. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2022. http://dx.doi.org/10.34220/erstst2021_139-144.
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In the current energy environment, with an expected increase in energy consumption in the face of depletion of fossil fuel reserves, more attention is being paid to renewable energy sources for electricity generation. One of the most attractive alternatives is biomass, which can be effectively used to generate electricity, as well as heat using cogeneration technologies that increase the efficiency of the entire energy conversion process. The North-western region of the Russian Federation is a region with recognized potential for electricity and heat production, using primary forest biomass and waste from the forest industry, among which wood chips are distinguished for their ease of obtaining, processing and drying, as well as for their good and stable behavior during combustion or gasification. However, in order to use the available resources efficiently, that is, to minimize the material and technical requirements to reduce the energy required for the electricity generation process, biomass obtained in the conditions of logging enterprises must be used locally in order to comply with sustainable forest management methods. This article is aimed at describing various technological alternatives for converting wood chips into electricity and heat, as well as comparing these technologies for use in logging enterprises.
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Ungemach, Pierre, Miklos Antics, Davide Di Tommaso y Filippo Casali. "Real Time Geosteering Integrated Services. A Key Issue in Maximizing Geothermal Exposure and Minimizing Drilling and Completion Risks. A Paris Basin Case Study". En SPE/IADC International Drilling Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204012-ms.
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Abstract Geothermal District Heating (GDH) doublets in the Central part of the Paris Basin, particularly in the Capital City suburban areas, face two major concerns: The replacement of aging and declining, when not damaged, well infrastructures and productive/injective capacities; GDH doublets density, approaching overpopulation in some areas, which limits well replacement opportunities and clouds new development issues bearing in mind the space limitations in urban areas and the thermal breakthrough/reservoir cooling shortcomings. The Paris suburban Cachan site was considered a relevant candidate for a first implementation of an alternative well architecture design. In March 2018, the second sub-horizontal geothermal injection well, GCAH2, was successfully tested at the Paris suburban Cachan site, thus validating this innovative sub-horizontal well (SHW) architecture, initiated on the previously drilled production well, GCAH1, recorded as a world first with 1000 m 8-1/2 in. open hole horizontal drain. The sub-horizontal drain sections of the wells were drilled using the geosteering technique in place of the usual geometric pre-planned trajectory. Geosteering was successfully used for optimal well placement of the geothermal injection/production doublet. The real-time data was correlated to reservoir model to design and implement a reliable well trajectory and to increase reservoir exposure. Alongside LWD (logging while drilling), advanced near real-time cuttings analysis utilizing elemental and mineralogical measurements and custom software was used to improve decision making while drilling. The integration of chemo-stratigraphy, mud logging, wireline, logging while drilling and production test results improved the correlation between wells, supporting the building of a proper geological model and reservoir characterization.
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Al-Dhaferi, Yousef, Anes Usman, Abdullah Al-Fawwaz, Rehab Al-Khalifah y Ahmed Taher. "Reservoir Evaluation Utilizing Integrated Formation Pressure Testing while Drilling Along with Flow Testing Across Burgan Formation". En SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210386-ms.
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Abstract Logging-While-Drilling (LWD) formation testers have been successfully used for years in measuring formation pressure and estimating formation mobility. In terms of applications, among many others, this data has been useful for mud weight optimization while drilling, reservoir fluid characterization, and selecting intervals for injectivity tests based on mobility variation. Recently, an LWD formation-pressure-testing-while-drilling (FTWD) tool was deployed in an onshore water-disposal injection well with minimal offset data. An intensive LWD program was utilized across the Burgan formation, including gamma ray, triple combo, multipole sonic, and FTWD, along with mud-logging and geomechanics services for pore-pressure prediction. Both LWD triple combo and surface logging data were used to confirm lithology for optimum pressure-point selection while drilling, prior to any wellbore damage, evaluating the reservoir for any potential compartmentalization and selection of potential water-injection zones. Due to an unfortunate wellbore collapse, flow testing was not an option to estimate the wellbore injectivity; therefore, the FTWD results were used to select where to drill a sidetrack lateral. The FTWD direct formation pressure and mobility measurements enriched the understanding of the reservoir by establishing pressure gradients. By interpreting the results of the selected points, reservoir zonation was estimated based on the calculated mobility, which indicated a high degree of permeability variation. Along with consistent formation-pressure measurements, the established water gradient from the measured FTWD pressure-test results while drilling were used as a baseline for comparison with FTWD pressure-test results repeated after a wiper trip. This comparison allowed the evaluation of pressure changes between the two runs and identification of time-lapse effects at the sand face. The challenging conditions in the drilled wellbore resulted in an unfortunate loss of the main borehole due to hole collapse across some shale intervals. As a result of losing the wellbore, it was not possible to obtain crucial reservoir flow-testing information. The FTWD interpreted data gave crucial insight, facilitating the decision on where to drill a sidetrack lateral that would meet the injectivity requirements. Based on the measured mobility, the sidetrack was drilled and tested for injectivity, yielding favorable results. This paper focuses on enhancing permeability estimation, along with fluid and mobility identification in clastic formations, utilizing an integrated approach of FTWD and injection testing for better formation evaluation and reservoir characterization. The integration of the LWD data with the water injectivity profile evaluation highlighted the importance of proper characterization of the mobility/permeability of the formation. This in turn provided clue to the observed variation in injection profile with time as shown by periodic PLT logging.