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Institution

Taisei Corporation

CompanyTokyo, Japan
About: Taisei Corporation is a company organization based out in Tokyo, Japan. It is known for research contribution in the topics: Sea ice & Pile. The organization has 749 authors who have published 650 publications receiving 9926 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors present guidelines for using computational fluid dynamics (CFD) techniques for predicting pedestrian wind environment around buildings in the design stage, based on cross-comparison between CFD predictions, wind tunnel test results and field measurements.

1,619 citations

Journal ArticleDOI
TL;DR: In this paper, a working group was organized by the Architectural Institute of Japan (AIG) to make a guideline for CFD prediction of the wind environment, and various comparative studies were carried out as follows.

383 citations

Journal ArticleDOI
TL;DR: In this paper, the authors show that ABA levels in imbibed seeds are elevated at high temperature and that this increase is correlated with up-regulation of the zeaxanthin epoxidase gene ABA1/ZEP and three 9-cis-epoxycarotenoid dioxygenase genes, NCED2,NCED5, and NCED9.
Abstract: Suppression of seed germination at supraoptimal high temperature (thermoinhibiton) during summer is crucial for Arabidopsis (Arabidopsis thaliana) to establish vegetative and reproductive growth in appropriate seasons. Abscisic acid (ABA) and gibberellins (GAs) are well known to be involved in germination control, but it remains unknown how these hormone actions (metabolism and responsiveness) are altered at high temperature. Here, we show that ABA levels in imbibed seeds are elevated at high temperature and that this increase is correlated with up-regulation of the zeaxanthin epoxidase gene ABA1/ZEP and three 9-cis-epoxycarotenoid dioxygenase genes, NCED2, NCED5, and NCED9. Reverse-genetic studies show that NCED9 plays a major and NCED5 and NCED2 play relatively minor roles in high temperature-induced ABA synthesis and germination inhibition. We also show that bioactive GAs stay at low levels at high temperature, presumably through suppression of GA 20-oxidase genes, GA20ox1, GA20ox2, and GA20ox3, and GA 3-oxidase genes, GA3ox1 and GA3ox2. Thermoinhibition-tolerant germination of loss-of-function mutants of GA negative regulators, SPINDLY (SPY) and RGL2, suggests that repression of GA signaling is required for thermoinibition. Interestingly, ABA-deficient aba2-2 mutant seeds show significant expression of GA synthesis genes and repression of SPY expression even at high temperature. In addition, the thermoinhibition-resistant germination phenotype of aba2-1 seeds is suppressed by a GA biosynthesis inhibitor, paclobutrazol. We conclude that high temperature stimulates ABA synthesis and represses GA synthesis and signaling through the action of ABA in Arabidopsis seeds.

382 citations

Journal ArticleDOI
TL;DR: In this article, the authors simulate the co-injection of H 2 S or SO 2 with CO 2 into an arkose formation at a depth of about 2 km and 75°C.

376 citations

Journal ArticleDOI
TL;DR: The present study used an articulated thermal manikin with 16 body segments to generate radiative heat transfer coefficients as well as natural- and forced-mode convective coefficients to simulate both transient and spatial inhomogeneities in the thermal environment.
Abstract: Human thermal physiological and comfort models will soon be able to simulate both transient and spatial inhomogeneities in the thermal environment With this increasing detail comes the need for anatomically specific convective and radiative heat transfer coefficients for the human body The present study used an articulated thermal manikin with 16 body segments (head, chest, back, upper arms, forearms, hands, pelvis, upper legs, lower legs, feet) to generate radiative heat transfer coefficients as well as natural- and forced-mode convective coefficients The tests were conducted across a range of wind speeds from still air to 50 m/s, representing atmospheric conditions typical of both indoors and outdoors Both standing and seated postures were investigated, as were eight different wind azimuth angles The radiative heat transfer coefficient measured for the whole-body was 45 W/m2 per K for both the seated and standing cases, closely matching the generally accepted whole-body value of 47 W/m2 per K Similarly, the whole-body natural convection coefficient for the manikin fell within the mid-range of previously published values at 34 and 33 W/m2 per K when standing and seated respectively In the forced convective regime, heat transfer coefficients were higher for hands, feet and peripheral limbs compared to the central torso region Wind direction had little effect on convective heat transfers from individual body segments A general-purpose forced convection equation suitable for application to both seated and standing postures indoors was hc=103v06 for the whole-body Similar equations were generated for individual body segments in both seated and standing postures

369 citations


Authors

Showing all 752 results

NameH-indexPapersCitations
Kazuya Watanabe5517212253
Hiroshi Jinnai483188220
Satoshi Goto361475675
Kazunari Sei331213152
Tadahiro Ohmi252922802
Hajime Yamamoto16581085
Yumiko Kodama15211153
Tomoyuki Takabatake1353470
Koji Kitazawa1246462
Katsuharu Iinuma1033276
Kouki Yoshida1018573
Shunji Kanie1045276
Hiroyasu Ogawa1054382
Yoh Takahata1019682
Yuki Kasai99574
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20232
20223
202117
202026
201914
201820