Two types of TiO2 powders of water-to-TPT ratios (Powder 1: water/TPT = 1 and Powder 2: water/TPT= 2) were synthesized via sol-gel method. The effect of hydrolysis degree on the formation of TiO2 powder particles was investigated using various physical-chemical characterization methods. The synthesized powders were then immobilised by mixing them w

This paper proposes a new multistage evacuated solar distillation system that was designed to increase the productivity and improve the efficiency of the simple solar still. The solar still works by virtue of the higher evaporation rate under vacuum conditions. A mathematical model for the system was developed and used to optimize the system design

It is known that polystyrene must be chemically modified to make its surface enable to covalent cross-linking with protein. The aim of this study was to develop UV/Ozone treatment system and investigate the effects of treatment system on surface of polystyrene beads. The surface of polystyrene beads with an average size of 150μm was modified by UV

In the past two decades, the global environment and community worldwide has reached great compromise that human activities for government earning more economically are causing changes to the global climate. Increased levels of carbon dioxide (CO2), methane (CH4)' sulphur dioxide (SO2) and other greenhouse gases in the last century have raised t

In the present work, powdered activated carbon (PAC) was modified and used for the production of carbon nanofibers (CNFs). The modification of PAC was done by the impregnation of nickel on the surface of the activated carbon using the wet impregnation method. Variable weight percentage ratios of the catalyst (nickel) ratio were used. The nanofibers

In the present work, the production and characterization of carbon nanofibers (CNFs) composite is reported. Carbon nanofibers (CNF) were produced on powdered activated carbon PAC—impregnated with nickel—by Chemical Vapor Deposition (CVD) of a hydrocarbon in the presence of hydrogen at ~780° C. The flow rates of carbon source and hydrogen were

Background review: The WHO estimates that, currently, more than 246 million people worldwide have diabetes. The number is anticipated to increase to 380 million by the year of 2050. Natural products are excellent sources of lead compounds in the search for novel drugs for the treatment of various diseases. T. scandens Linn., (Mempelas Kesar)is an i

إنّ الأدب جزء لا يتجزأ من تعلّم أي لغة من اللغات المنطوقة في العالم. فبتعلّم الأدب تتوسّع قدرة المتعلّم في فهم تلك اللغة المدروسة. ومن المعروف أنّ مجال الأدب واسع، فلا نستطيع أنّ نخصّه بالأشعار

We employed the contingent valuation method to estimate the willingness to pay of the respondents to improve the waste collection system in Dhaka city, Bangladesh. Our objective was to estimate how WTP differs between respondents who received or did not receive door to door waste collection. The methodology consisted of asking people directly about

Purpose – The purpose of this paper is to review the accounting treatments for corporate zakat, as advocated by accounting standards and guidelines, as well as those been practised by relevant corporations. The aim is to determine their appropriateness and adherence to both the Islamic as well as the accounting theoretical perspectives. Design/me