Results 241 to 250 of about 3,902,635 (273)

Estuary-shelf interactions off the Changjiang Delta during a dry-wet seasonal transition

Marine Geology, 2020
Abstract Estuary-shelf interaction is very complex and vital for maintaining healthy ecosystem in the estuaries and adjacent seas. The topic has been intensively studied through cruise observations and numerical models, but less by long-term observations at a fixed station.
Yue Zhang, Daidu Fan, Rufu Qin
openaire   +1 more source

Ammonium and phosphate enrichment across the dry–wet transition and their ecological relevance in a subtropical reservoir, China

Environmental Science: Processes & Impacts, 2016
Small river reservoirs are widespread and can be ecologically sensitive across the dry–wet transition under monsoon climate with respect to nutrient loading and phenology.
Qiongli, Mo, Nengwang, Chen, Xingpeng, Zhou, Jixin, Chen, Shuiwang, Duan   +4 more
openaire   +2 more sources

Observed Intensification of Temporally Compound Dry–Wet Transitions and Serial Combinations Across East Asia

Science of the Total Environment
Rapid transitions between dry and wet spells, referred to as hydroclimatic swing events (HSEs), pose significant threats to human health, infrastructure, and ecosystems, particularly across East Asia. These risks are further amplified when HSEs are preceded by additional dry or wet spells, forming serially combined events; however, such complex cases ...
Mohammad Reza Najafi, Jinwook Lee, Changhyun Jun   +2 more
exaly   +3 more sources

Three-dimensional reconstruction and sulfate ions transportation of interfacial transition zone in concrete under dry-wet cycles

Construction and Building Materials, 2021
Abstract The interface transition zone (ITZ) is widely recognized as the weakest phase in cement-based materials, and playing a critical role in the durability of concrete. The purpose of this paper is to investigate the performance difference and the diffusion of sulfate ions in cement matrix and ITZ under dry-wet cycles.
Suining Zheng, Rui He, Huaxin Chen, Zhendi Wang, Xin Huang, Shaowen Liu   +5 more
openaire   +1 more source

Erosion damage and expansion evolution of interfacial transition zone in concrete under dry-wet cycles and sulfate erosion

Construction and Building Materials, 2021
Abstract Interfacial transition zone (ITZ) is of paramount importance to the durability of concrete. However, the evolution of damage characteristics and mechanical properties of ITZ under dry-wet cycles and sulfate erosion were not fully investigated in the literature.
Suining Zheng, Lin Qi, Rui He, Jiangtao Wu, Zhenjun Wang   +4 more
openaire   +1 more source

Performance Evolution of the Interfacial Transition Zone (ITZ) in Recycled Aggregate Concrete Under External Sulfate Attacks and Dry-Wet Cycling

Construction and Building Materials, 2019
Abstract Performance evolution of different types of interfacial transition zones (ITZs) contained in recycled aggregate concrete (RAC) under external sulfate attacks coupled with dry-wet cycling is experimentally studied in the labotrary. Comparisons are made between different ITZs in the erosion products, the morphology changes, and the ...
Tao Ji, Hongru Zhang
exaly   +2 more sources

Decadal-Scale Dry-Wet Transitions and Vegetation Responses in Northeastern China Over the Past Millennium

Palaeogeography, Palaeoclimatology, Palaeoecology
Shiwei Jiang, Anze Chen, Hongfei Zhao
exaly   +2 more sources

Effects of coarse aggregates on chloride diffusion coefficients of concrete and interfacial transition zone under experimental drying-wetting cycles

Construction and Building Materials, 2018
Abstract Chloride ions diffusion into concrete is one of the most significant factors for reinforced concrete (RC) structures exposed to marine environment, and this can deteriorate reinforcing steel in concrete and cause steel corrosion, ultimately, shorten the durability and serviceability of RC structures.
Yuanzhan Wang, Linjian Wu, Yuchi Wang, Chenxi Liu, Qingmei Li   +4 more
openaire   +1 more source

Evaluation of Dry-Wet Transition in PEFC Under Load Changes Based on Laser Spectroscopy Using Fiber-Optic Probe

ECS Transactions, 2019
The low-humidity operations of a polymer electrolyte fuel cell (PEFC) unfortunately induce the membrane dehydration and deteriorate the proton conductivity through the membrane. Especially, when the output current rapidly rises in steps under load-change conditions, the remarkable decrease of the water concentration on the anode side temporarily ...
Kosuke Nishida, Ryoga Nakauchi, Yuma Tabata, Toyofumi Umekawa, Masahiro Kawasaki   +4 more
openaire   +1 more source

The Alcoholic Family at Home

Archives of General Psychiatry, 1981
Thirty-one alcoholic families were observed in their homes on nine separate occasions over a six-month period. During each occasion, behavioral observers made systematic recordings of interactional behavior using the Home Observation Assessment Method, a method that concentrates on the family's style of regulating its home environment.
openaire   +2 more sources