Cold Region Hydrology

2014 ◽  
pp. 39-56 ◽  
Keyword(s):  
Cold Region

Development and Cytogenetic Analysis of Perennial Wheat in Cold Region

2013 ◽  
Vol 38 (8) ◽  
pp. 1378-1386 ◽  
Author(s):  
Hai-Bin ZHAO ◽  
Yan-Ming ZHANG ◽  
Chun-Long SHI ◽  
Xiao-Dan YAN ◽  
Chao TIAN ◽  
...  
Keyword(s):  
Cytogenetic Analysis ◽  
Cold Region ◽  
Perennial Wheat

A large-scale shift of cropland structure profoundly affects grain production in the cold region of China

2021 ◽  
pp. 127300
Author(s):  
Tao Pan ◽  
Chi Zhang ◽  
Wenhui Kuang ◽  
Geping Luo ◽  
Guoming Du ◽  
...  
Keyword(s):  
Large Scale ◽  
Grain Production ◽  
Cold Region ◽  
Scale Shift

Outdoor thermal benchmarks and thermal safety for children: A study in China’s cold region

2021 ◽  
pp. 147603
Author(s):  
Boze Huang ◽  
Bo Hong ◽  
Yu Tian ◽  
Tingting Yuan ◽  
Meifang Su
Keyword(s):  
Thermal Safety ◽  
Cold Region

Airborne Algal growth on roofs of membrane-structured residences in cold area of Japan

2020 ◽  
pp. 174425912098003
Author(s):  
Makiko Nakajima ◽  
Daisuke Masueda ◽  
Shuichi Hokoi ◽  
Takayuki Matsushita
Keyword(s):  
Algal Growth ◽  
Residential Building ◽  
Growth Conditions ◽  
Building Structure ◽  
Transparent Film ◽  
Cold Region ◽  
Algal Population ◽  
Building Facades ◽  
Cold Area ◽  
Survey Results

The discoloration of building facades due to airborne algae is observed in our surroundings. The growth conditions of these algae are not yet fully understood, and efficient measures for preventing the growth of the algae are not presently available. The objective of this study was to investigate the effects of the ambient environment and building structure on algal growth. A residential building in a cold region of Japan was surveyed. The roof was a multi-layered structure comprising a semi-transparent film, an air layer, and a layer of insulation from the outside, supported by rafters. The soiled state was visually observed by taking photographs. On the northeast (NE) and northwest (NW) roofs, several black stripes appeared 4 months after cleaning. The soiling increased in the spring and autumn. The soiling first appeared on the film backed by the rafter and then extended to the film backed by the air layer. The condensation time during the day in the rafter part was longer than that in the air-layer part. Condensation occurred during the night, but its frequency exhibited no dependence on the orientation of the roof. Algae tend to die when exposed to an environment with a temperature higher than 45°C. The NE roof had the shortest period with a surface temperature of >45°C. These measurements agreed well with the survey results, which indicated that the soiling mainly occurred on the NE and NW sides of the roofs. The time for algal growth was estimated under the assumption that algae can grow at surface temperatures ranging from 0 to 45°C, in agreement with the observed soiling. The observed soiling changes were well explained by the algal population calculated via a growth predictive model according to the algal temperature and relative humidity.

Geothermal distribution characteristics and sedimentary basin geothermal system in the severe cold region of Northeast China

2020 ◽  
Vol 17 (3) ◽  
pp. 321-337
Author(s):  
Zhen-Yu Fan ◽  
Sheng-Qing Xiong ◽  
Chang-Chun Yu ◽  
Gui-Bin Zhang ◽  
Xin-Yong Zhang ◽  
...  
Keyword(s):  
Northeast China ◽  
Sedimentary Basin ◽  
Geothermal System ◽  
Distribution Characteristics ◽  
Cold Region
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