Investigations were carried out to evaluate the performance of direct injection diesel engine with medium grade low heat rejection (LHR) combustion chamber and 3 mm air gap insulated piston, 3 mm air gap insulated liner, and ceramic coated cylinder head [ceramic coating with the thickness of 500 µ was made on the inside portion of the cylinder head].The engine had different operating conditions...

PURPOSE To investigate the refractive and biometric changes associated with adult-onset and adult-progression of myopia in an occupational group. METHODS The sample population consisted of 251 clinical microscopists aged 21 to 63 years. Subjects had their refraction and ocular dimensions measured on four occasions during a 2-year period, and a total of 166 subjects (332 eyes) completed the lo...

in this work, the feasibility study for design of a laboratory sample rde which has an annular geometry with diameter of 76 mm and length of 101 mm has been performed. detonation engines are expected to be used as propulsion system in aerospace applications in the future. several types of detonation engines are currently under examination, including the rotating detonation engine (rde). first, ...

In Uzbekistan, at present, there are more than 9,000 non-governmental non-profit organizations in the country, as well branches and representative offices of 29 international foreign organizations. 2017, such Nuroniy Foundation, Youth Union, Council Farmers, Dehkan Farms Landowners Chamber Commerce Industry, Republican for Coordination Self-Government Bodies Special decrees resolutions were ado...

The purpose of this paper is to examine the association between corporate social responsibility (CSR) and earning management listed Vietnamese companies. Both accrual (AEM) real (REM) are calculated on yearly basis from 2016–2020. Information CSR extracted top 100 sustainable businesses announced by Vietnam Chamber Commerce Industry (VCCI). Using Feasible Generalized Least Squares (FGLS) method...