Results 151 to 160 of about 1,016,619 (289)
Energy Science &Engineering, EarlyView.A stress wave propagation model for coal‐rock combinations under in situ stress was established. Taking a coal mine in Huainan, China as the engineering background, isotropic and anisotropic numerical models were constructed. Field engineering practices were carried out to verify the reliability of the conclusions.
Jianyu Zhang +6 more
wiley +1 more source
Roof Coatings Manufacturers Association
Created by the Roof Coatings Manufacturers Association, a trade association which represents manufacturers of cold-applied coatings and cements used in the roofing industry, this site provides users with a useful assortment of materials as well as some ...
core
Thermal performance in green roof retrofit
, 2016 Green areas has diminished in big cities. Increasing temperatures and deterioration of air quality is a common result. Consequently, there is a rise in air pollution and greenhouse gas emissions, costs with air conditioning, and mortality and heat ...
Feitosa, RC, Wilkinson, SJ
core
Study on Roof‐Control Technology for Gob‐Side Entry Retaining Under Composite Roofs
Energy Science &Engineering, EarlyView.This study develops a roof‐control technology system for gob‐side entry retaining under composite roofs. By integrating field measurements, theoretical analysis, and numerical simulation, it reveals the spatiotemporal evolution of the plastic zone and proposes a targeted support method, providing theoretical and practical guidance for safe and ...
Dong Li +4 more
wiley +1 more source
League-ally Speaking was a newsletter published by the Toledo League for the Hard of Hearing in Toledo, Ohio. Incorporated in 1920, the organization was also an agency of the Toledo Community Chest. In 1947 the organization changed its name to the Toledo
Toledo League for the Hard of Hearing
core
Energy Science &Engineering, EarlyView.This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley +1 more source
League-ally Speaking was a newsletter published by the Toledo League for the Hard of Hearing in Toledo, Ohio. Incorporated in 1920, the organization was also an agency of the Toledo Community Chest. In 1947 the organization changed its name to the Toledo
Toledo League for the Hard of Hearing
core
Energy Science &Engineering, EarlyView.Glazed transpired solar collectors achieve 48–75% efficiency and 11% more seasonal heat than unglazed designs by cutting convective losses, while both offer complementary benefits for ventilation preheating and dynamic wall insulation, with paybacks of 5.5–6.8 years.
Mohammad Fawaier +7 more
wiley +1 more source
Structural characteristics of double layer hard roof and effects on coal pillar and roadway stability. [PDF]
iScienceLi H, Liu C, Liu H, Chen Y, Wu F.
europepmc +1 more source
In the process of mining, a large area of hard roof will be exposed above a goaf and may suddenly break. This can easily induce rock burst and has a significant impact on production safety.
Chungang Wang +3 more
core +1 more source