Results 21 to 30 of about 85,583 (314)

Bedding-generated particulate matter: implications for rodent studies

, 2020
Objectives: Rodents used in scientific research are typically housed in cages containing natural bedding materials. Despite extensive evidence of biological harm from inhaled particulate matter (PM), relatively little work has been performed to measure ...
John L. Durant (315646), Neelakshi Hudda (1322790), Benjamin C. Nephew (8230848), Douglas Brugge (8230845), Jocelyn Petitto (8230842), Alexandra Nemeth (8230836), Phyllis Mann (8230839)   +6 more
core   +1 more source

Mechanical Properties of Longmaxi Black Organic-Rich Shale Samples from South China under Uniaxial and Triaxial Compression States

Energies, 2016
With the exploitation of shale gas booming all over the world, more and more studies are focused on the core technology, hydraulic fracturing, to improve commercial exploitation. Shale gas resources in China are enormous.
Yusong Wu, Xiao Li, Jianming He, Bo Zheng   +3 more
doaj   +1 more source

Deformation anisotropy of soft rock

Građevinar, 2023
Bedding, being a typical feature of sedimentary rocks, is a cause of inherent anisotropy of deformation properties of rock mass. Results of uniaxial and triaxial, short-term and creep tests conducted by the authors on the specimens of a soft sedimentary ...
Slobodan Živaljević, Zvonko Tomanović, Borko Miladinović   +2 more
doaj   +1 more source

The influence of the bedding angle under passive confining pressure on the dynamic strength and energy consumption of shale

矿业科学学报, 2021
In order to analyze the strength characteristics, damage characteristics and energy dissipation laws of the bedding shale specimens under passive confining pressure, the Hopkinson Pressure Bar(SHPB)device was used to perform different impact pressures ...
Yang Guoliang, Bi Jingjiu, Zhang Zhifei, Li Xuguang, Liu Jie, Hong Peixuan   +5 more
doaj   +1 more source

Maintaining Optimal Mammary Gland Health and Prevention of Mastitis

Frontiers in Veterinary Science, 2021
In dairy industry, quality of produced milk must be more important than quantity without a high somatic cells count (SCC) or pathogens causing mastitis of dairy cows and consumer diseases. Preserving the good health of dairy cows is a daily challenge for
František Zigo, Milan Vasil', Silvia Ondrašovičová, Jana Výrostková, Jolanta Bujok, Ewa Pecka-Kielb   +5 more
doaj   +1 more source

Study on effective extraction radius of bedding borehole under the impact of normal fault

Gong-kuang zidonghua, 2022
The reasonable effective extraction radius of borehole is the key to ensure gas extraction effect. However, the research of effective extraction radius mainly focuses on the measurement method of effective extraction radius of borehole, and there is a ...
JIANG Mingquan, KANG Xiangtao, YAN Chaoxing, TANG Meng, WANG Ziyi   +4 more
doaj   +1 more source

Choosing a Manure Recycling System for a Dairy Farm with Tied Housing

Сельскохозяйственные машины и технологии, 2019
Development and testing of new more effi cient and environmentally friendly waste management technologies is one of the priorities of agroecology aimed at introducing the basic principles of the sustainable use of natural resources.
R. A. Uvarov
doaj   +1 more source

Creep Instability and Acoustic Emission Responses of Bedded Coal Subjected to Compressive Loads and Acidic Water Saturation

Applied Sciences
This study investigates the creep behavior and acoustic emission (AE) characteristics of bedded coal samples under acidic water environments. Uniaxial graded creep tests coupled with AE monitoring were conducted on samples with bedding angles of 0°, 30°,
Zhenhua Zhao, Lin Han, Hongjie Sun, Hongtao Li, Rui Zhang, Xinyu Bai, Yu Wang   +6 more
doaj   +1 more source

Fracture characteristics based on discrete element method

Youqicang pingjia yu kaifa, 2023
In order to explore the characteristics of fracturing fractures of shale with weak plane development, a fracture propagation model of shale reservoirs taking the weak plane of bedding and natural fractures into account is established by the three ...
LI Xiaogang, HE Jiangang, YANG Zhaozhong, YI Liangping, HUANG Liuke, DU Bodi, ZHANG Jingqiang   +6 more
doaj  

Bacterial Load of the Teat Apex Skin and Associated Factors at Herd Level

Animals, 2020
In order to reduce antimicrobial treatment and prevent environmental mastitis, the aim of the present study was to investigate associations between herd level factors and microbial load on teat ends with environmental mastitis pathogens.
Maria-Franziska Hohmann, Nicole Wente, Yanchao Zhang, Volker Krömker   +3 more
doaj   +1 more source