probable use of chemical and biochemical detergents to wash polysulphone membranes using in milk ultrafiltration needs a multidisciplinary investigation. by increasing use of these membranes in food processing, washing and recovery of initial permeate flux, in order to use for a longer time from this technology, has much importance. in this research, influence of chemical detergents including e...

abstract background: dyes are visible materials and are considered as one of the hazardous components that make up the industrial waste. dye compounds in natural water, even in very low concentrations, will lead to environmental problems. azo dyes are compounds with one or more –n=n– groups and are used in textile industry. because of its low price, solubility, and stability, azo dyes are widel...

Under the dual pressures of energy crisis and environmental pollution, China’s new power industry has become a focal point for management requires greater investment. In this context, as significant input investment projects, discount rate well-calibrated evaluation because projects are highly capital intensive. The main objective paper is to evaluate industry. First, we use Moving Average corr...

background: presently, the british-american tobacco company (bat) located in ibadan, oyo state is the only tobacco producing company in nigeria accounting for about nine different brands of cigarette tobacco smoked in the country. the tobacco leaves are produced from some farmlands located in oke-ogun area of ibadan where special fertilizers are used for the growing of the tobacco leaves. the u...

background: natural radiation is constantly present in the environment and is emitted from a variety of natural and artificial sources. it affects human body and environment. materials and methods: the activity concentrations of 238u, 232th and 40k have been determined by gamma ray spectrometer with an hpge detector in sediments of cauvery river, tamilnadu, india. results: the absorbed dose rat...

the corporate income tax rate plays a worthwhile role in developing fiscal and tax policies for companies, lawmakers and analysts. so, one of the most important issues in tax field, is to determine effective tax rates. the study and scientific calculations of the effective tax rates provide an enhanced tax justice and a careful study of tax pressure on taxpayers would be possible. the objective...

China has changed from the surviving stage to the developing stage. In developing stage, the demand for life quality has increased, more and more people are participating in sports, thus new challenges has presented themselves in the development of sports nutrition industry. This paper uses research methods such as literature research, field research, case study, comparative study and others, i...