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  • Open Access

    ARTICLE

    THERMAL MANAGEMENT OF DATA CENTERS UNDER STEADY AND TRANSIENT CONDITIONS

    Yogesh Jaluriaa,*, Arvindh Sundera, Jingru Z. Bennerb

    Frontiers in Heat and Mass Transfer, Vol.15, pp. 1-12, 2020, DOI:10.5098/hmt.15.12

    Abstract Data centers are of crucial importance today in the storage and retrieval of large amounts of data. Most organizations and firms, ranging from banks and online retailers to government departments and internet companies, use data centers to store information that can be recovered efficiently and rapidly. As the deployment of data centers has increased, along with their capacity for data storage, the demands on thermal management have also increased. It is necessary to remove the energy dissipated by the electronic circuitry since the temperature of the components must not rise beyond acceptable levels that could… More >

  • Open Access

    ARTICLE

    Vers une approche psychoacoustique et qualitative des paysages sonores de la commune de Sidi Bou Saïd

    Mohamed Amin Hammami1 , Christophe Claramunt2

    Revue Internationale de Géomatique, Vol.30, No.2, pp. 215-243, 2020, DOI:10.3166/rig.2021.00113

    Abstract La recherche présentée dans cet article propose une approche qualitative de qualification d’ambiances sonores dans un espace urbain. La démarche combine une série de mesures psychoacoustiques réalisées in situ à partir d’une gamme complémentaire de capteurs sonores avec une évaluation qualitative réalisée par les acteurs de ces environnements. Les expérimentations menées dans la commune de Sidi Bou Saïd montrent la faisabilité de la démarche, l’intérêt de combiner mesures quantitatives et réalités sonores perçues, tout comme l’opérationnalisation possible de l’approche qualitative permettant de qualifier des ambiances sonores dans un riche environnement urbain. More >

  • Open Access

    ARTICLE

    Vers une mesure des « vides alimentaires » dans un contexte urbain hétérogène

    Réflexion méthodologique et application à Lyon-Saint-Étienne

    Luc Merchez1 , Hélène Mathian2 , Julie Le Gall3

    Revue Internationale de Géomatique, Vol.30, No.1, pp. 85-104, 2020, DOI:10.3166/rig.2020.00103

    Abstract La question de l’alimentation et de la caractérisation des environnements alimentaires a déjà fait l’objet de nombreuses études et développements méthodologiques pour rendre compte des différentiels d’accessibilité. Aux Etats-Unis, essentiellement à l’aune de questions sur la santé, ces études ont conduit à identifier des « déserts alimentaires . Cette question éminemment spatiale, qui repose sur la notion d’accessibilité, est souvent approchée par des enquêtes et entretiens ou des approches quantitatives basées sur des calculs d’accessibilités géographiques. Dans la lignée de ces travaux, nous proposons d’explorer la transférabilité de cette notion de « désert » à More >

  • Open Access

    ARTICLE

    Articuler cognition spatiale et cognition environnementale pour saisir les représentations socio-cognitives de l’espace

    Thierry Ramadier

    Revue Internationale de Géomatique, Vol.30, No.1, pp. 13-35, 2020, DOI:10.3166/rig.2020.00101

    Abstract Cet article s’appuie sur un ensemble de recherches sur la cognition spatiale afin de montrer, d’une part, que des résultats encore éparses plaident un faveur d’une construction sociale des « cartes mentales , et d’autre part, que c’est en conjuguant l’analyse des significations sociales de l’espace géographique (cognition environnementale) avec celle des distributions topologiques des éléments géographiques intériorisées par les individus (cognition spatiale) qu’il est possible de rendre compte de cette socialisation de la cartographie cognitive. L’auteur interroge ainsi les raisons qui font obstacle à une analyse socio-cognitive des « cartes mentales , alors que, More >

  • Open Access

    ARTICLE

    Microenvironment Analysis of Prognosis and Molecular Signature of Immune-Related Genes in Lung Adenocarcinoma

    Bo Ling, Zuliang Huang, Suoyi Huang, Li Qian, Genliang Li, Qianli Tang

    Oncology Research, Vol.28, No.6, pp. 561-578, 2020, DOI:10.3727/096504020X15907428281601

    Abstract There is growing evidence on the clinical significance of tumor microenvironment (TME) cells in predicting prognosis and therapeutic effects. However, cell interactions in tumor microenvironments have not been thoroughly studied or systematically analyzed so far. In this study, 22 immune cell components in the lung adenocarcinoma (LUAD) TME were analyzed using gene expression profile from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). The TME-based molecular subtypes of LUAD were defined to evaluate further the relationship between molecular subtypes, prognosis, and clinical characteristics. A TME risk score model was constructed by using the More >

  • Open Access

    ARTICLE

    Random Forests Algorithm Based Duplicate Detection in On-Site Programming Big Data Environment

    Qianqian Li1, Meng Li2, Lei Guo3,*, Zhen Zhang4

    Journal of Information Hiding and Privacy Protection, Vol.2, No.4, pp. 199-205, 2020, DOI:10.32604/jihpp.2020.016299 - 07 January 2021

    Abstract On-site programming big data refers to the massive data generated in the process of software development with the characteristics of real-time, complexity and high-difficulty for processing. Therefore, data cleaning is essential for on-site programming big data. Duplicate data detection is an important step in data cleaning, which can save storage resources and enhance data consistency. Due to the insufficiency in traditional Sorted Neighborhood Method (SNM) and the difficulty of high-dimensional data detection, an optimized algorithm based on random forests with the dynamic and adaptive window size is proposed. The efficiency of the algorithm can be More >

  • Open Access

    ARTICLE

    A Pursuit of Sustainable Privacy Protection in Big Data Environment by an Optimized Clustered-Purpose Based Algorithm

    Norjihan Binti Abdul Ghani1, Muneer Ahmad1, Zahra Mahmoud1, Raja Majid Mehmood2,*

    Intelligent Automation & Soft Computing, Vol.26, No.6, pp. 1217-1231, 2020, DOI:10.32604/iasc.2020.011731 - 24 December 2020

    Abstract Achievement of sustainable privacy preservation is mostly very challenging in a resource shared computer environment. This challenge demands a dedicated focus on the exponential growth of big data. Despite the existence of specific privacy preservation policies at the organizational level, still sustainable protection of a user’s data at various levels, i.e., data collection, utilization, reuse, and disclosure, etc. have not been implemented to its spirit. For every personal data being collected and used, organizations must ensure that they are complying with their defined obligations. We are proposing a new clustered-purpose based access control for users’… More >

  • Open Access

    REVIEW

    Melatonin and its protective role against male reproductive toxicity induced by heavy metals, environmental pollutants, and chemotherapy: A review

    TIECHENG SUN1,#, LINGLI SONG1,#, JING MA2,#, HONG YU1, SHANJIE ZHOU1, SHUSONG WANG2, LI TIAN1,3,*

    BIOCELL, Vol.44, No.4, pp. 479-485, 2020, DOI:10.32604/biocell.2020.011675 - 24 December 2020

    Abstract Melatonin, as a ubiquitous indoleamine hormone, is synthesized primarily by the pineal gland. It has diverse biological effects through quite complex mechanisms. More recently, studies have focused on the mechanism of melatonin in anti-reproductive toxicity/damage. Since melatonin possesses strong antioxidant and anti-apoptotic properties, researchers have examined its potential role in protecting against male reproductive toxicity/damage, which may be induced by chemotherapy or environmental toxicants and can lead to male infertility. In this article, recent progress regarding the protective effects of melatonin on male reproductive toxicity/damage is reviewed. More >

  • Open Access

    ARTICLE

    Microenvironment and related genes predict outcomes of patients with cervical cancer: evidence from TCGA and bioinformatic analysis

    WENXI GAO1,2,#, QIANQIAN MA3,#, CHENYU TANG2,#, YUELI ZHAN4, YINONG DUAN2, HUIHUA NI5,*, YUNZHAO XU5,6,*

    BIOCELL, Vol.44, No.4, pp. 597-605, 2020, DOI:10.32604/biocell.2020.011328 - 24 December 2020

    Abstract Cervical cancer (CESC) is one of the most common cancers and affects the female genital tract. Consistent HPV infection status has been determined to be a vital cause of tumorigenesis. HPV infection may induce changes to the immune system and limit the host’s immune response. Immunotherapy is therefore essential to improving the overall survival of both locally advanced and recurrent CESC patients. Using 304 relevant samples from TCGA, we assessed immune cell function in CESC patients to better understand the status of both tumor micro-environment cells and immune cells in CESC. Functional enrichment analysis, pathway… More >

  • Open Access

    ARTICLE

    Low-Carbon Efficiency Model Evaluation of China’s Iron and Steel Enterprises Based on Data and Empirical Evidence

    Xuesong Xu, Hongyan Shao, Shengjie Yang*, Rongyuan Chen

    Intelligent Automation & Soft Computing, Vol.26, No.5, pp. 1063-1072, 2020, DOI:10.32604/iasc.2020.010137

    Abstract The aim of this study is to consider the economic, resource, energy and environmental factors in a low-carbon economic efficiency evaluation system and to analyze the factors affecting iron and steel enterprises. A combined data envelopment analysis and Malmquist index model have been used in this paper. We empirically investigate the low-carbon efficiency of the Chinese steel industry using observations of 17 listed enterprises from 2009 to 2013. The results show that the economic efficiency of China’s iron & steel enterprises is generally low. The Malmquist productivity index also shows a decreasing trend. Based More >

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