Environmental reduction factors of BFRP bars in coral aggregate concrete in high temperature and high humidity environments

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 3017-3024
Author(s):  
Xiangzhou Liang ◽  
Shiping Yin ◽  
Changshun Hu
2020 ◽  
Vol 86 (3) ◽  
pp. 228-232
Author(s):  
Zofia Książkiewicz-Parulska

ABSTRACT This laboratory study investigated behavioural differences between adults and juveniles of the wetland land snail species Vertigo moulinsiana with respect to temperature and humidity. Juveniles of V. moulinsiana, for example, tend to remain within the shaded, humid and cool layer of the litter, while adults usually climb above wet vegetation to a height of over 2 m. Adults are thus exposed to greater variation in temperature and humidity than juveniles. My experiments showed that adults of V. moulinsiana remain active longer than juveniles when subject to high temperature (36 °C) and low relative humidity (RH 30%). Conversely, juveniles stay active longer than adults in high humidity (22 °C, RH 100%). A short period of starvation lengthened the time needed for the juveniles to become active after dormancy, possibly indicating a different response between adults and juveniles to lack of nutritional reserves. These behavioural differences to food availability and the risk of water loss correspond to the microhabitat differences observed between adults and juveniles in the wild.


1989 ◽  
Vol 67 (10) ◽  
pp. 2352-2357 ◽  
Author(s):  
C. Haldar ◽  
R. Pandey

The effects of different humidity, photoperiod, and temperature regimes on the testicular function of the tropical water snake Natrix piscator were investigated in both sham-operated and pinealectomized snakes. Moderate humidity (50 ± 5%) had no effect on the testis, but high humidity (85 ± 5%) increased the testicular weight and activity of sham-operated snakes after 3, 6, and 9 weeks. Exposures to 14L:10D or 24L:0D and high temperature (42 ± 2 °C) inhibited testicular weight and activity in sham-operated snakes, whereas exposure to 10L:14D or 0L:24D and a low temperature (20 ± 2 °C) had no effect. Pinealectomized snakes did not respond to any of these experimental conditions, but their testicular weight remained the same as that of the pinealectomized controls under natural environmental conditions. The pineal gland showed an opposite response to that of the testes. Pineal gland weight decreased under high humidity and increased under 14L:10D, 24L:0D, and high temperature. These findings suggest that the ecofactors humidity, photoperiod, and temperature play a role in the regulation of testicular function in this snake, and that the pineal gland is implicated in the mediation of these factors.


1944 ◽  
Vol 22c (1) ◽  
pp. 7-10 ◽  
Author(s):  
T. Johnson ◽  
W. A. F. Hagborg

Results of experiments performed in the greenhouse have shown that, under conditions of a high temperature especially when combined with a high humidity, melanistic areas may develop on the glumes, lemmas, peduncles, and internodes of Apex and Renown wheat in the absence of any infection by pathogenic organisms.


2019 ◽  
Vol 7 (5) ◽  
pp. 1345-1352 ◽  
Author(s):  
Suqian Meng ◽  
Yayun Zhou ◽  
Wei Wan ◽  
Shi Ye ◽  
Qinyuan Zhang

Stability test shows that the luminous efficiency of WLED with CSFM-Y reduces only 4% after duration of 120 h in the testing condition of high humidity (85%) and high temperature (85 °C), while the one with pure CSFM declines 28%.


2012 ◽  
Vol 472-475 ◽  
pp. 3182-3187
Author(s):  
Jing Yang ◽  
Xiao Hui Wang ◽  
Yong Wu

High temperature, high humidity, corrosive substances in the air and a variety of fungus are devastating for the product, so how to correctly evaluate the impact of three defenses of the product is particularly important. Basing on the failure of the salt fog, humidity, and fungus, this paper will analyse the product’s failure mechanism and failure mode and then use fuzzy satisfactory optimization method to evaluate the product’s environmental adaptability in the humidity, salt fog and fungus condition.


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