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  • Open Access

    ARTICLE

    NUMERICAL ANALYSIS OF NATURAL CONVECTION IN INTERNALLY FINNED HORIZONTAL ANNULI

    Quanfu Gaoa,b , Kun Zhanga,b,*, Liang Bi Wanga,b

    Frontiers in Heat and Mass Transfer, Vol.14, No.1, pp. 1-10, 2020, DOI:10.5098/hmt.14.29

    Abstract Detailed numerical analysis is presented for natural convection heat transfer in internally finned horizontal annuli. Governing equations are discretized using the finite volume method, and solved using SIMPLE algorithm with Quick scheme. The results show that the flow and heat transfer can reach steady state when the Rayleigh number is below 2×104. When the Rayleigh number is greater than 3×104 , two different types of numerical solutions under the same parameters can be obtained for different initial conditions. The critical Rayleigh numbers with two different initial conditions are different from steady to unsteady solutions. The oscillatory flow undergoes several bifurcations… More >

  • Open Access

    ARTICLE

    CRITICAL MULTISCALE FLOW FOR INTERFACIAL SLIPPAGE IN MICROCHANNEL

    Zhipeng Tanga, Yongbin Zhangb,*

    Frontiers in Heat and Mass Transfer, Vol.14, No.1, pp. 1-5, 2020, DOI:10.5098/hmt.14.26

    Abstract The critical flow rate through a micro/nano slit pore for starting the adsorbed layer-fluid or adsorbed layer-wall interfacial slippage is calculated by a multiscale scheme. There are the physical adsorbed layers on the channel walls and the intermediate continuum fluid which are respectively in noncontinuum and continuum flows. The flow factor approach model for nanoscale flow is used to simulate the adsorbed layer flow, and a continuum model describes the continuum fluid flow. The boundary between the adsorbed layer and the continuum fluid or the boundary between the adsorbed layer and the channel wall are treated as the interfacial slippage.… More >

  • Open Access

    ARTICLE

    EFFECTS OF SERRATED PULSATING AIRFLOW ON LIQUID FILM EVAPORATION IN A VERTICAL CHANNEL: A NUMERICAL STUDY

    Changming Linga,b,*, Yin Zhonga,b

    Frontiers in Heat and Mass Transfer, Vol.14, No.1, pp. 1-6, 2020, DOI:10.5098/hmt.14.25

    Abstract Effects of serrated pulsating airflow on liquid film evaporation in a falling film channel was numerically studied based on a two-dimensional model. The mechanism of pulsating airflow evaporation was studied as the pulsating airflow swept across the vertical liquid film surface at the stagnant temperature. Effects of amplitude, frequency, and velocity of the serrated pulsating airflow at certain evaporation time on evaporation were analyzed. Compared with the uniform airflow, the highest relative evaporation of liquid film on vertical pipe inner surface was increased by about 0.3 %. When the airflow was pulsating, the cycle of vapor mass flow rate was… More >

  • Open Access

    ARTICLE

    CFD-BASED STUDY ON HEAT TRANSFER ENHANCEMENT BEHIND A PROJECTION IN A MINIATURIZED FLOW CHANNEL BY PULSATING FLOW

    Wakana Hiratsukaa , Takashi Fukueb,*, Hidemi Shirakawac, Katsuyuki Nakayamad, Yasushi Koitoe

    Frontiers in Heat and Mass Transfer, Vol.15, No.1, pp. 1-8, 2020, DOI:10.5098/hmt.15.16

    Abstract This paper describes a possibility of heat transfer enhancement in a mm-scale flow channel by using a combination of some projections and pulsating flow. The objective of this research is to develop a novel heat exchanger for miniaturized productions such as high-density packaging electronic equipment by applying pulsating flow to enhance heat transfer while inhibiting an increase of pressure drop. In order to evaluate the possibility of applying pulsating flow to miniature water channels, a three-dimensional flow and heat transfer analysis was performed. Heat transfer performance of a combination of pulsating water flow and a projection was investigated. The mechanism… More >

  • Open Access

    ARTICLE

    MULTISCALE OR NO MULTISCALE ANALYSIS FOR MASS TRANSFER IN A MICRO/NANOCHANNEL?

    Zhipeng Tanga, Yongbin Zhangb,*

    Frontiers in Heat and Mass Transfer, Vol.15, No.1, pp. 1-6, 2020, DOI:10.5098/hmt.15.11

    Abstract The mass flow rate through a micro/nano channel is calculated by a multiscale analysis when the thickness of the adsorbed layer on the channel wall is comparable to the channel height and the interfacial slippage on the adsorbed layer-wall surface interface occurs or not. The calculation is compared with that from conventional continuum flow theory. It is found that when the ratio More >

  • Open Access

    ARTICLE

    Impact of Precariousness and Perceived Social Support, on the Return to Work of Women with Breast Cancer, in the Year Following the Beginning of Adjuvant Treatments

    Influence de la précarité sociale et du soutien social perçu, sur le retour au travail des femmes ayant un cancer du sein, dans l’année suivant le début des traitements adjuvants

    B. Porro, A. Michel, F. Cousson-Gélie

    Psycho-Oncologie, Vol.16, No.2, pp. 273-281, 2022, DOI:10.3166/pson-2022-0181

    Abstract The aim is to assess the associations between social precariousness, perceived social support, and the return to work (RTW) in the first year following the beginning of adjuvant breast cancer treatment. Sixty-eight breast cancer patients encountered when starting their adjuvant treatment (T0) were followed up at 3 (T1) and 12 months (T2). Friends’ informative support at T0 favours the RTW at T1. Precariousness and negative support at T0 and T2 decrease the likelihood of RTW at T2. RTW support should be offered and tailored at the outset of treatment.

    Résumé
    L’objectif est d’étudier les liens entre précarité sociale, soutien… More >

  • Open Access

    ARTICLE

    La honte d’être soignant face à la mort annoncée en oncologie

    Caregiver Shame When Death Is Announced in Oncology

    B. Karcher

    Psycho-Oncologie, Vol.16, No.3, pp. 319-321, 2022, DOI:10.3166/pson-2022-0201

    Abstract In this article, we attempt to shed light on the function that shame can have for the oncology caregiver. Toward this aim, we put forward the hypothesis that shame functions to safeguard subjectivity. We demonstrate that caregiver shame can be a sign of suffering but also a defense allowing to resubjectify oneself. This happens through a call for the gaze of the “other” and a request for union, sometimes bringing up a “demand” in the psychoanalytic sense of the term.

    Résumé
    Dans cet article, nous tenterons d’éclairer la fonction de la honte en déterminant ce que peut recouvrir cet… More >

  • Open Access

    ARTICLE

    Support the Professional Life of People Followed in Oncology: an Experience in a Cancer Center

    Accompagner la vie professionnelle des personnes suivies en cancérologie : une expérience en centre de lutte contre le cancer

    E. Renault-Tessier, A. Du Crest, A.-L. Lieb, E. Picod, E. Nebenzahl

    Psycho-Oncologie, Vol.17, No.1, pp. 5-10, 2023, DOI:10.3166/pson-2022-0223

    Abstract Maintaining or returning to work for people with cancer is a major issue. One in five people lose their job 5 years after diagnosis. The problem is complex, in connection with the consequences of the disease, the treatments, the partial knowledge of the aid devices, and the socioprofessional particularities. First of all, an update on the state of play in France is made, to understand the situation on the demographic level, the material and psychological consequences. Then, the article traces the experience of a cancer care center in the establishment of a system to support the professional life of people… More >

  • Open Access

    ARTICLE

    Artificial Neural Network-Based Development of an Efficient Energy Management Strategy for Office Building

    Payal Soni, J. Subhashini*

    Intelligent Automation & Soft Computing, Vol.37, No.1, pp. 1225-1242, 2023, DOI:10.32604/iasc.2023.038155

    Abstract In the current context, a smart grid has replaced the conventional grid through intelligent energy management, integration of renewable energy sources (RES) and two-way communication infrastructures from power generation to distribution. Energy management from the distribution side is a critical problem for balancing load demand. A unique energy management strategy (EMS) is being developed for office building equipment. That includes renewable energy integration, automation, and control based on the Artificial Neural Network (ANN) system using Matlab Simulink. This strategy reduces electric power consumption and balances the load demand of the traditional grid. This strategy is developed by taking inputs from… More >

  • Open Access

    ARTICLE

    Cognitive Granular-Based Path Planning and Tracking for Intelligent Vehicle with Multi-Segment Bezier Curve Stitching

    Xudong Wang1,2, Xueshuai Qin1, Huiyan Zhang2,*, Luis Ismael Minchala3

    Intelligent Automation & Soft Computing, Vol.37, No.1, pp. 385-400, 2023, DOI:10.32604/iasc.2023.036633

    Abstract Unmanned vehicles are currently facing many difficulties and challenges in improving safety performance when running in complex urban road traffic environments, such as low intelligence and poor comfort performance in the driving process. The real-time performance of vehicles and the comfort requirements of passengers in path planning and tracking control of unmanned vehicles have attracted more and more attentions. In this paper, in order to improve the real-time performance of the autonomous vehicle planning module and the comfort requirements of passengers that a local granular-based path planning method and tracking control based on multi-segment Bezier curve splicing and model predictive… More >

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