Search Results 1-20 of 165

  • NUMERICAL EVALUATION OF THE INFLUENCE OF SALT DAMAGE BY IMPROVEMENT OF THE SHELTER:-Study on the conservation of a stone Buddha carved into a cliff at Motomachi PART 2-  [in Japanese]

    TAKATORI Nobumitsu , OGURA Daisuke , WAKIYA Soichiro , ABUKU Masaru , KIRIYAMA Kyoko

    … <p> In this study, we clarified how the shelter suppresses salt damage at Motomachi Sekibutsu, that is stone Buddha directly carved into a cliff at Motomachi, by calculating the hygro-thermal environment in the shelter. … By numerical analysis, we modeled the cliff including the stone Buddha in two dimensions and the wall of the shelter in one dimension, and analyzed the heat and moisture behavior. …

    Journal of Environmental Engineering (Transactions of AIJ) (768), 137-147, 2020-02

    J-STAGE  AIJ 

  • DEVELOPMENT OF DYNAMIC MOISTURE CONTENT MEASUREMENT SYSTEM FOR WOODEN MEMBERS EXPOSED TO FIRE HEATING  [in Japanese]

    SUZUKI Tatsuro , HASEMI Yuji , KAMIKAWA Daisuke , YASUI Noboru , KAKU Chihiro , SUZUKI Jun-ichi

    … <p> A small sensor for the dynamic measurement of local moisture content within a wooden member exposed to fire heating is developed. … Time variation of local moisture content of a wooden member during fire tests has not been grasped for the lack of non-destructive measurement system suitable for high temperature. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (762), 1123-1133, 2019-08

    J-STAGE  AIJ 

  • STUDY ON PREDICTION METHOD FOR INSULATION OF DOUBLE-LAYER STRUCTURE USING “INCLUSIVE THERMAL CONDUCTIVITY” IN FIRE-RESISTANCE TEST  [in Japanese]

    YOSHITANI Kimie , SHIMIZU Takafumi , YOSHIDA Masatomo

    …  In this study, a method for predicting the unexposed surface temperature of a double-layer wall is proposed based on "inclusive thermal conductivity," which considers heat and moisture transfer and influence of cracks in materials containing water. … On the estimation of the inclusive thermal conductivity, the calculated internal temperatures of the materials, temperature between materials, and unexposed surface temperature were compared with the experimental results. …

    Journal of Environmental Engineering (Transactions of AIJ) (755), 1-10, 2019-01

    J-STAGE  AIJ 

  • Approach to Reducing Steam Consumption in Dryer Section  [in Japanese]

    Lin Qian , Ujiie Shogo

    … ous integrated eff orts are demanded to reduce the energy consumption. To dry the wet paper to a targeted moisture value in the dryer section requires a large amount of energy. The energy effi ciency will be worse enough to aff ect the whole production process in the winter season, since at the lower temperature extra steam energy is required, which deteriorates the steam consumption rate. As a res …

    JAPAN TAPPI JOURNAL 73(7), 629-633, 2019

    J-STAGE 

  • Effects of wet heating using large-scale cooking equipment on food properties  [in Japanese]

    Kikuchi Ryoko , Yoshinaga Natsuki , Fujii Shunsuke , Yuasa Masahiro , Takako Koga

    … In stecon cooking, ingredients were heated by condensing heat transfer and steamed by hot air, leading to a small temperature rise from surface to inside. … Although carrots were heated at high temperatures for longer durations, they had lower vitamin C contents. …

    Abstracts of the Annual Meeting of the Japan Society of Cookery Science 31(0), 100, 2019

    J-STAGE 

  • Penetration of Moisture, CO<sub>2</sub>, and Cl Ions in Concrete after Exposure to High Temperature

    Daungwilailuk Totsawat , Kitagawa Tatsuya , Bui Phuong Trinh , Ogawa Yuko , Kawai Kenji

    … <p>This study aims to understand how moisture, CO<sub>2</sub>, and chloride ions penetrate usable postfire concrete by using electrical resistivity data. … One surface of each specimen was placed on a hot plate and exposed to 350°C for 15 min. The moisture transfer in the specimens stored at 20°C and 60% relative humidity was assessed by measuring their electrical resistance. …

    Journal of Advanced Concrete Technology 17(1), 1-15, 2019

    J-STAGE 

  • EFFECT OF AIR PRESSURE ON MOISTURE TRANSFER INSIDE POROUS BUILDING MATERIALS  [in Japanese]

    FUKUI Kazuma , IBA Chiemi , HOKOI Shuichi , OGURA Daisuke

    …  The effect of air pressure on moisture transfer inside porous building materials cannot be ignored in cases where air cannot escape through the surfaces of the materials; … in such cases, air is compressed by the movement of the moisture. … Such a situation can be brought about by the sealing or surface-protecting materials that prevent water from penetrating into a surface, which is often seen in a typical water absorption test. …

    Journal of Environmental Engineering (Transactions of AIJ) (743), 39-47, 2018-01

    J-STAGE  AIJ 

  • STUDY ON PREDICTION METHOD FOR INSULATION OF GYPSUM BOARD USING “INCLUSIVE THERMAL CONDUCTIVITY” IN FIRE-RESISTANCE TEST  [in Japanese]

    YOSHITANI Kimie , SHIMIZU Takafumi , YOSHIDA Masatomo

    …  In this study, a prediction method of the unexposed surface temperature of a wall is proposed using "inclusive thermal conductivity" that takes into consideration heat and mass transfer in a material containing moisture. … On the estimation of the inclusive thermal conductivity, the calculated internal temperatures of the materials and exposed surface temperature on the non-heated side were compared with the experimental results. …

    Journal of Environmental Engineering (Transactions of AIJ) (741), 915-925, 2017-11

    J-STAGE  AIJ 

  • NUMERICAL ANALYSIS OF THE INFLUENCE OF HYGROTHERMAL VARIATION ON SALT WEATHERING OF A BUDDHA STATUE CARVED INTO A CLIFF:-Study on the conservation of a stone Buddha carved into a cliff at Motomachi PART1-  [in Japanese]

    TAKATORI Nobumitsu , OGURA Daisuke , WAKIYA Soichiro , ABUKU Masaru , KIRIYAMA Kyoko

    … and thus there has been a great concern in its moisture-related problems such as salt damage and growth of bryophytes.<br> As an onset to proposing a conservation environment that is the most appropriate to suppress the salt damage, this paper is dedicated to environmental measurement to obtain the essential data set and numerically quantifying influences of the heat and moisture behavior in the cliff on potential salt damages mainly at and near the surfaces of the main Buddha statue, …

    Journal of Environmental Engineering (Transactions of AIJ) 82(733), 215-225, 2017

    J-STAGE 

  • Quantitative soil profile-scale assessment of the sustainability of long-term maize residue and tillage management

    Kinoshita Rintaro , Schindelbeck Robert R. , van Es Harold M.

    … Both surface and subsoil layers can be a significant source of soil moisture and nutrients for crop growth, but the changes in subsoil properties due to management are rarely assessed. …

    Soil and Tillage Research (174), 34-44, 2017

    IR 

  • Effect of Finishing on Heat and Moisture Transfer Properties of Lining Leather for Shoes  [in Japanese]

    角田 由美子 , Yumiko TSUNODA

    … The effect of the different treatments on the heat and moisture transfer properties of the lining leather was investigated at 20℃ and 65% RH using an apparatus that simulates the microclimate of the shoes. … In addition, measured thermograms showed that the unfinished leather dried faster than the finished leather due to a rapid increase in the sample surface temperature and due to the heat of adsorption. …

    学苑 (909), 24-30, 2016-07

    IR 

  • Modelling of Drying Kinetics During Non-isothermal Convective Drying of Passion Fruit Seeds

    VÁQUIRO Henry , RODRÍGUEZ Óscar , SIMAL Susana , SOLANILLA-DUQUE José F. , TELIS-ROMERO Javier

    … The governing equations for coupled mass and heat transfer phenomena were expressed in a generalized coordinate system in order to obtain a one-dimensional model suitable for the non-regular geometry of the seeds. …

    Japan Journal of Food Engineering 17(4), 117-121, 2016

    J-STAGE 

  • PBPK-CFD HYBRID APPROACH FOR ESTIMATING AIRWAY TISSUE DOSIMETRY:Development of Computer Simulated Person with numerical respiratory tract model - part3  [in Japanese]

    YOO Sung-Jun , ITO Kazuhide

    … (i) thermo-regulation model for controlling skin surface temperature and (ii) respiratory tract model coupled with pharmacokinetics, for indoor environmental quality assessment. …

    Journal of Environmental Engineering (Transactions of AIJ) 81(729), 971-978, 2016

    J-STAGE 

  • Transient Analysis of Heat and Moisture Transfer around Human Body Considering Ventilation in Air Layer in Clothing  [in Japanese]

    OSAKI Tomohiro , TAKADA Satoru

    … In this paper, the human thermal model considering heat and moisture transfer in clothing is modified by taking into account the ventilation in the air layer in clothing, based on a ventilation calculation due to the temperature difference between the air layer in clothing and the ambient air, and wind pressure from the assumed air flow. …

    人間-生活環境系シンポジウム報告集 = Proceedings of Symposium on Human-Environment System 39, 87-90, 2015-11-20

    NDL Digital Collections 

  • DEVELOPMENT OF THE OPTIMIZATION SCHEME OF THE HYDROLOGICAL - ECOLOGICAL COUPLING MODEL ASSIMILATING MICROWAVE SIGNAL  [in Japanese]

    SAWADA Yohei , KOIKE Toshio

    … To improve the skill of reproducing land-atmosphere interactions in the weather forecasting system, simultaneous modeling of surface soil moisture (SSM) and leaf area index (LAI) is strongly needed. … The model parameters including land surface, vegetation and radiative transfer processes are estimated by using microwave satellite data and the optimization scheme. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 70(4), I_577-I_582, 2014

    J-STAGE 

  • DEVELOPMENT OF A SATELLITE LAND AND CLOUD DATA ASSIMILATION SYSTEM COUPLED WITH WRF, AND ITS APPLICATION TO KANTO AREA  [in Japanese]

    SETO Rie , KOIKE Toshio , RASMY Mohamed

    … The CALDAS-WRF includes Simple Biosphere model version 2 (SiB2) as a land surface driver, radiative transfer models for surface soil layer and atmosphere as observation operators, and Ensemble Kalman Filter (EnKF) and 1DVAR as assimilation algorithms for land and cloud, respectively. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 70(4), I_535-I_540, 2014

    J-STAGE 

  • MODELING OF TRANSIENT RESPONSE OF SKIN MOISTURE CONTENT TO CHANGE IN INDOOR HUMIDITY  [in Japanese]

    KAIHARA Noriko , TAKADA Satoru , MATSUSHITA Takayuki

    … Based on the measurement of the moisture content in the stratum corneum, the transient model of the moisture transfer in skin was proposed with using the simultaneous heat and moisture transfer equations for hygroscopic range. …

    Journal of Environmental Engineering (Transactions of AIJ) 79(697), 233-239, 2014

    J-STAGE 

  • P-21 CFD Analysis on Ventilation in Air Layer in Clothing : Influence of Airflow Resistance of Clothing  [in Japanese]

    SASAKI Ayaha , TAKADA Satoru

    … The purpose of this study is to clarify the effect of heat and moisture transfer in air layer between clothing and skin by ventilation on thermal comfort. … We investigated the influence of the airflow at the clothing surface on ventilation in air layer in clothing and air temperature in clothing. …

    人間-生活環境系シンポジウム報告集 38, 119-122, 2014

    NDL Digital Collections 

  • Measurement of Thickness of Air Layer in Clothing Based on Surface Shape Data  [in Japanese]

    Takada Satoru

    … It was shown that the air layer is thick at the waist, and its thickness is almost zero around the shoulder not depending on the differences in the aspect of dressing, in the physique, and in the kind of the clothing. … The possibility of determining the distribution of heat and moisture transfer resistance in the air layer based on the thickness was suggested to evaluate the local effect by the air layer formed by clothing on the thermophysiological responses. …

    Journal of human and living environment 21(1), 1-7, 2014

    J-STAGE 

  • Experimental Observations and Numerical Modeling of a Single Coarse Lignite Particle Dried in Superheated Steam

    KIRIYAMA Tsuyoshi , SASAKI Hideaki , HASHIMOTO Akira , KANEKO Shozo , MAEDA Masafumi

    … The particles were dried with superheated steam at temperatures ranging from 110 to 170°C under atmospheric pressure, and their weights and temperatures were measured with electronic balance, thermocouples and infrared thermograph. … Condensation of water droplets on the surface was observed initially, then constant drying rate period (CDRP) and decreasing drying rate period (DDRP) were observed successively. …

    MATERIALS TRANSACTIONS 54(9), 1725-1734, 2013-09-01

    J-STAGE  References (20)

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