Results 21 to 30 of about 12,026,905 (318)

Distribution Characteristics and Source Analysis of “Three Nitrogen” in Shallow Groundwater in Hailun Area of Heilongjiang Province

Yankuang ceshi, 2023
BACKGROUNDWith the increase of population, urbanization development, the large discharge of industrial wastewater and the excessive application of agricultural nitrogen fertilizer, the problem of “three nitrogen” (nitrate nitrogen, ammonia nitrogen, and ...
Lijun LI, Qiang LIU
doaj   +1 more source

Distribution Characteristics of Petroleum in Water Quality of Hangzhou Bay

Haiyang Kaifa yu guanli, 2023
Based on the water quality monitoring data of 12 voyages in Hangzhou Bay from 2017 to 2019, the distribution characteristics of petroleum in the water quality survey project were analyzed. It was found that the content range of petroleum in the waters of
Mengnan YU, Lin'an YE, Yudi JIN, Weisheng CHEN   +3 more
doaj  

Horizontal Distribution of Temperature Effect in Rubberized Concrete Pavement: A Case Study

Buildings, 2023
Temperature distribution and the deformation behavior under temperature are important parameters in the design and evaluation of concrete pavements. In this paper, in order to study the horizontal distribution of the temperature effect on rubberized ...
Gaowang Zhang, Jiake Zhang, Jie Yuan, Shijiang Ye   +3 more
doaj   +1 more source

The chemical characteristic and distribution of brassinosteroids in plants

Phytochemistry, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Bajguz, Andrzej, Tretyn, Andrzej
openaire   +3 more sources

Characteristics of the Spatial Structure of Traditional Villages in the Xinjiang Uygur Autonomous Region in China and Their Influence Mechanisms

Buildings
Traditional villages are one of the basic types of rural revitalisation and one of the important carriers of cultural inheritance. This research is based on the data of 53 traditional villages in the Xinjiang Uyghur Autonomous Region with the aid of the ...
Yanlong Guo, Siqi Zhai, Jie Huang, Haoyuan Guo   +3 more
doaj   +1 more source

Research on the temperature and humidity distribution characteristics in potato storage facilities: experimental analysis and numerical simulation

Frontiers in Sustainable Food Systems
Potatoes rank among the world’s most important food crops. Traditional storage methods often lack precise environmental control, rendering potatoes vulnerable to rot and spoilage.
Qi Zhen, Qi Zhen, Chao Xu, Tana, Hongzhi Wang, Xinwei Yue, Caixia Yan, Caixia Yan, Yunfeng Sun   +8 more
doaj   +1 more source

Characteristic, Maximum Modulus and Value Distribution [PDF]

Transactions of the American Mathematical Society, 1984
Let f f be an entire function such that
Hayman, W. K., Rossi, J. F.
openaire   +2 more sources

Analysis of Characteristics and Driving Mechanisms of Non-Grain Production of Cropland in Mountainous Areas at the Plot Scale—A Case Study of Lechang City

Foods
With the continuous advancement of urbanization and industrialization, non-grain production on cropland (NGPCL) is gradually becoming more widespread. This phenomenon will compress the space for grain production and trigger a global food crisis.
Zhaojun Wu, Shengfa Li, Dafang Wu, Jun Song, Tong Lin, Ziya Gao   +5 more
doaj   +1 more source

Distribution patterns and environmental risk assessments of microplastics in the lake waters and sediments from eight typical wetland parks in Changsha city, China

Frontiers in Public Health
The quality of water in urban parks is closely related to people’s daily lives, but the pollution caused by microplastics in park water and sediments has not been comprehensively studied.
Junyi Yao, Jiang Li, Jialing Qi, Mengrui Wan, Liling Tang, Hui Han, Kai Tian, Shaobo Liu   +7 more
doaj   +1 more source

Characteristics, Progress and Trends of Urban Microclimate Research: A Systematic Literature Review and Bibliometric Analysis

Buildings, 2022
Climate change has been a hot topic in recent years. However, the urban microclimate is more valuable for research because it directly affects people’s living environments and can be adjusted by technological means to enhance the resilience of cities in ...
Yichen Zhou, Na An, Jiawei Yao
doaj   +1 more source