Search Results 1-20 of 1030

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HIGH TEMPERATURE BEHAVIOR OF H-SHAPED STEEL BEAM WITH CIRCULAR OPENINGS IN WEB (PART 1): ANALYSIS OF COLLAPSE BEHAVIOR BY EXPERIMENTS [in Japanese]

YOON Unggi , MURAKAMI Haruhiko , KOHNO Mamoru , SUZUKI Jun-ichi

… Many of the newly constructed buildings are becoming intelligent, thus required equipment for building service such as air conditioning, electrical and information lines is diversified. … In such a case, it is more likely that more holes will be installed to accommodate design changes during construction or future facility renewal than the minimum requirements of the initial design. …

Journal of Structural and Construction Engineering (Transactions of AIJ) (778), 1677-1685, 2020-12

J-STAGE AIJ
2

Study on an Evaporative Cooling Vest for Farm Workers

Maqsood Aarish , Riaz Mahmood , Muhammad H. Mahmood , Sultan Muhammad

… A model is developed work on the principle of indirect evaporative cooling (IDEC) provides cooled air without adding humidity i.e. latent heat of vaporization is transferred to working air, which makes more doable over the direct evaporative cooling (DEC). …

Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) (6), 116-121, 2020-10-22

IR DOI
3

IMPACT OF WAVE INDUCED OCEAN UPPER LAYER MIXING ON HEAT TRANSPORT IN NUMERICAL TYPHOON SIMULATIONS [in Japanese]

TAKAGI Masashi , MORI Nobuhito , NINOMIYA Junichi

… The results indicate that differences in sea surface temperature (SST) arise depending on the applied bulk formula used. … The changes of both heat flux and wind energy are strongly correlated with that of minimum SLP . …

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76(2), I_253-I_258, 2020

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4

LCCO2 AND THERMAL ENVIRONMENT OF LIVING ROOM MODEL FOR PASSIVE SOLAR HOUSE WITH THERMAL MASS [in Japanese]

TOKI Kensuke , MURATA Ryo

… emitted from the air-conditioning load is calculated by the Solar Designer which is a thermal environment simulation tool. … Furthermore, the qualities of thermal environment focusing on the change of room temperature on sunny day in winter and summer are investigated by considering the Degree・Hour (D・H) which integrates the fluctuation of room temperature. …

Journal of Architecture and Planning (Transactions of AIJ) 85(776), 2065-2074, 2020

J-STAGE
5

Risk of vegetable crop freezing injury due to winter temperature regime in the Sanriku coastal region [in Japanese]

OKADA Masumi , MATSUSHIMA Uzuki , OKADA Maki

… As a measure of freezing tolerance, we used the daily mean and/or the daily maximum air temperature, averaged over 10 days, before the daily minimum air temperature dropped below freezing point during early winter. … For the vegetable crop, we assumed a freezing temperature of -3°C or -5°C. …

Climate in Biosphere 20(0), 117-120, 2020

J-STAGE
6

An Updated Estimate of the Urban Heat Island Effect on Observed Local Warming Trends in Mainland China's 45 Urban Stations

JIN Kai , WANG Fei , ZONG Quanli , QIN Peng , LIU Chunxia

… Observed surface air temperature (SAT) warming at urban stations often contains both the signal of global warming and that of local urban heat island (UHI) effects; … In this study, an urban impact indicator (Uii) developed by the authors was modified to represent the extent to which the observed temperature from a given station was influenced by UHI effects. …

Journal of the Meteorological Society of Japan. Ser. II 98(4), 787-799, 2020

J-STAGE
7

Practical study on heat stress reduction by parasols [in Japanese]

WATANABE Shinichi , ISHII Jin

… Air temperature, relative humidity, wind velocity, and upward and downward long and short-wave radiation fluxes were measured under the sun and parasols. … The maximum solar shading rate was identified to be 99.7% for the white polyester (100%) parasol laminated with polyurethane film, and the minimum was 48.3% for the white polyester (65%) and cotton (35%) mixture parasol. …

JAPANESE JOURNAL OF BIOMETEOROLOGY 56(4), 133-144, 2020

J-STAGE
8

Combination Effects of Sowing and Transplanting Time on Harvest Time in Some Onion (Allium cepa L.) Cultivars with Different Photoperiod Requirements in Hokkaido

Tanaka Shizuyuki , Iritani Masaki , Araki Hajime

… The daily minimum soil temperature was kept at almost 0°C, even when the air temperature in the plastic tunnel inside the greenhouse fell to −14.4°C in mid-winter. …

The Horticulture Journal 89(4), 432-444, 2020

J-STAGE
9

Cool Temperature Increases Spikelet Number per Panicle in Oryza sativa L. "Tachiayaka", a Short-Panicle Rice for Whole-Crop Silage Use [in Japanese]

Nakagomi Koji , Fujimoto Hiroshi , Kanda Noriaki , Fukushima Akira , Sasahara Hideki , Shigemune Akiko , Ideta Osamu

… Comparison of the samples transplanted at various periods and harvested at different altitudes or latitudes revealed negative correlations between spikelet number per panicle and average of daily minimum air temperature from 30 days to 11 days before heading. …

Japanese Journal of Crop Science 89(3), 211-217, 2020

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10

Proposition of heat-stroke risk assessment based on potential effective sweating possible to measure with portable equipment and its application to the Tokyo 2020 Summer Olympic marathon event

TAKAYAMA Naru , BANDO Takahiro , KUWANA Tsuyoshi , TAMADA Takuya , ISHITSUBO Kento , OZAKI Yozo , TSURUTA Ken , OKADA Kohtaro , SHIBATA Yusuke , FUJIU Kazuki

… indicates the minimum effective sweating required to maintain a constant body temperature when undertaking an activity in the outdoor environment. … Additionally, we propose the concept of globe PES (PESg) and PESWBGT, which can be measured using portable equipment, such as a wet-bulb globe temperature (WBGT) meter. …

Journal of Agricultural Meteorology 76(2), 69-80, 2020

J-STAGE
11

Development of a measurement method to determine the ceiling exposure concentration of ortho-phthalaldehyde handling workers

Yamamoto Shinobu , Takeuchi Akito , Ishidao Toru , Ohkuma Hiroaki , Ichiba Masayoshi , Hori Hajime

… A 50-µL aliquot of phosphoric acid/acetonitrile solution (2%, v/v) was added to 950 µL of the extraction solution and allowed to stand for 30 minutes at room temperature. …

Journal of Occupational Health 62(1), n/a, 2020

J-STAGE
12

MULTIVARIATE ANALYSIS OF PERCEIVED INDOOR TEMPERATURE AND AGE AT NEED FOR LONG-TERM CARE INSURANCE:A field survey on the effect of winter indoor thermal environment on care requirements: Part 2 [in Japanese]

NAKAJIMA Yukie , IKAGA Toshiharu , ONO Mari , HOSHI Tanji , ANDO Shintaro

… Participants completed a self-report questionnaire about personal characteristics, housing, and perceived indoor temperature in their home during winter. … Participants were divided into a Cold group and a Warm group based on perceived indoor temperature. … Mean and minimum living room and bedroom temperatures differed between the Cold group and Warm group. …

Journal of Environmental Engineering (Transactions of AIJ) (763), 795-803, 2019-09

J-STAGE AIJ
13

Development of application programs for 50m grid meteorological data for daily air temperature, daily accumulated solar radiation, daily relative humidity and daily accumulated reference evapotranspiration [in Japanese]

植山秀紀

… I therefore developed some application programs to compile a grid data with 50m resolution: daily mean, maximum and minimum air temperature, daily accumulated solar radiation, daily relative humidity and daily accumulated reference evapotranspiration. …

農研機構研究報告西日本農業研究センター = Bulletin of the NARO, Agricultural Research for Western Region (19), 13-43, 2019-03-31

IR DOI
14

COMPREHENSIVE EVALUATION OF THE INFLUENCE OF OUTDOOR TEMPERATURE CHANGE ON HUMAN HEALTH AROUND THE URBAN AREA [in Japanese]

NARUMI Daisuke , IHARA Tomohiko , FUKUDA Sanae , SHIMODA Yoshiyuki

… Therefore, it is important to understand the effect of temperature increase on urban dwellers to take action for preventing the occurrence of adverse impact. … In this regard, the authors have shown the overall perspective of the effect of temperature change on urban dwellers by relation diagram, and evaluated the influence on energy, resources, health, air pollution etc. …

Journal of Environmental Engineering (Transactions of AIJ) (756), 205-214, 2019-02

J-STAGE AIJ
15

Factors explaining the yearly changes in minimum bottom dissolved oxygen concentrations in Lake Biwa, a warm monomictic lake

福島武彦 , 松下文経 , Takehiko Fukushima , Tomohiro Inomata , Eiji Komatsu , Bunkei MATSUSHITA

… Vertical profiles of dissolved oxygen (DO) and water temperature (WT) measured bi-monthly for 36 years (1980–2015) near the deepest part of a warm monomictic lake were analyzed with special reference to yearly minimum DO at bottom (DOmin). …

Scientific Reports (9), 298, 2019-01

IR
16

Sensitivity experiments for the factors of temperature decrease inhibition during winter night in urban area [in Japanese]

川端康弘 , 清野直子 , 田中泰宙 , 青栁曉典

日本ヒートアイランド学会誌 = Heat Island Institute International annual issue 14, 7-15, 2019
17

Study on Energy System of a Plant Factory for Savoy Processing using Spot Cooling of Spinach [in Japanese]

KIKUCHI Naoki , OBARA Shin'ya

… Spinach increases sugar content when exposed to a low temperature (less than 7 ℃) environment. … The maximum temperature from December to March of Kitami is less than 7 ℃. … Therefore, in this period, a ventilation fan is used to air cooling the plant factory. … Furthermore, when the spot cooling system is used for processing by exposure to coldness of spinach, the minimum payback period was about 7.13 years, and the profit rate was about 4.59. …

The Proceedings of Mechanical Engineering Congress, Japan 2019(0), S06105P, 2019

J-STAGE
18

Near-wall flame propagation characteristics and the effect of surface reactions [in Japanese]

Minamoto Yuki , Narukawa Kosuke , Tanaka Shota , Shimura Masayasu , Tanahashi Mamoru

… To investigate near-wall flame behavior, two-dimensional direct numerical simulations (DNS) of methane/air and hydrogen/air premixed flames between two parallel walls are conducted under several conditions. … Using the DNS results, the flame front position nearest to the wall and defined based on the OH gradient or temperature, and the flame displacement speed defined by the temporal evolution of the position are evaluated. …

The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J05112, 2019

J-STAGE
19

Investigation of soil environments in the vicinity of Tricholoma matsutake mycelium in Abies sachalinensis stands [in Japanese]

GISUSI Seiki , AZUMA Tomonori , YOSHIDA Shigeichi , YONEYAMA Shozo , HARADA Akira , TSUDA Mayumi , TAMAI Yutaka

… In addition, soil temperature was maintained over 0℃ even in the mid-winter despite the minimum air temperature recoded below −20℃, due to snow cover on the forest floor. …

Japanese Journal of Mycology 60(2), 43-48, 2019

J-STAGE
20

Cold Hardiness of Wine Grape Variety 'Kiyomi' during Dormant Season in Tokachi Area

TSUMURA Yusuke , AZUMA Hakaru , TAKAHASHI Yu , ATUCHA Amaya , HIRANO Natsuki , KASUGA Jun

… The objective of this study was to evaluate seasonal changes in bud cold hardiness of Kiyomi during the dormant season (fall-winter) of 2018/2019, and to identify environmental conditions, i.e. timing and ambient temperature, that could cause freezing damage of unprotected grapevines. …

Cryobiology and Cryotechnology 65(2), 75-79, 2019

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