Results 81 to 90 of about 836 (213)
ABSTRACT This scoping review asked: What is known about the scope and nature of research on the COVID‐19 pandemic and its effects on older youth with foster care experience in the United States, including the types of studies, samples and outcomes examined?
Johanna K. P. Greeson +6 more
wiley +1 more source
Abstract Firm innovation and corporate social responsibility (CSR) are key strategic considerations that shape a firm's competitiveness and sustainability. However, studies exploring the relationship between the two are heterogeneous and sometimes obtain contradictory results, making it difficult to draw clear conclusions.
Daniel Alonso‐Martínez +2 more
wiley +1 more source
For the issue of excessive mass in the chain drive system of long-distance scraper conveyors, this paper proposes a method to optimize the scraper chains by integrating discrete element simulation (DEM) with topological optimization. The aim is to reduce
Qiang Zhang +5 more
doaj +1 more source
ABSTRACT Background Population ageing has increased the number of frail older adults living independently and retaining their natural dentition. To support oral healthcare professionals in caring for this patient group, the Royal Dutch Dental Association published the practice guideline Care for Frail Older Adults in the Dental Practice.
Ellen Dekkers +4 more
wiley +1 more source
Longitudinal torsional vibrations of the chain drive system of mine scraper conveyor. [PDF]
Lu J, Yang R, Mao J, Xie C.
europepmc +1 more source
ABSTRACT “I felt as if my body was being occupied by the factory.” The words of one woman working in Turkey's heavy industry were repeated in many accounts, capturing how industrial infrastructures calibrated to male norms press directly into women's bodies.
Esra Kasap +2 more
wiley +1 more source
This scraper conveyor was made by the Jeffrey Manufacturing of Columbus, Ohio, ca. 1905.
The Jeffrey Manufacturing Company (Photographer)
core
Research on Dynamic Tension Control Theory for Heavy Scraper Conveyor
To control the tension dynamic behaviors of heavy scraper conveyor self-adjusting system used for the chain initial tension of the scraper conveyor was considered. Hydraulic control system according to the principle was designed and the control theory of
Jian Guo Shi, Xiao Hua Wei, Jun Mao
core +1 more source
Dynamic Tension Control System for Chain of Scraper Conveyor and Its Applicatio
For problem of frequent faults of scraper and chain breakage caused by traditional artificial tension mode for chain of scraper conveyor, the paper introduced composition, working principle and operation mode of a dynamic tension control system for chain
CHEN Ju
doaj
Technical status and development trend of domestic armored face conveyor for ultra-long working face
The optimal solution to increase the output of a single working face is to lengthen the length of the working face. If conditions permit, it is possible to increase the yield of the working face, facilitate roadway layout, reduce roadway excavation rate,
Yongnian ZHU +4 more
doaj +1 more source

