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"ABSTRAKThe photocatalytic decolorization of real textile wastewater using pine wood (PW), bamboo (BB) and coconut shell (CS) charcoals TiO2-coated under UV irradiation were investigated. Biomass charcoals TiO2-coated were synthesized by the sol-gel and dip-coating technique. The structure features of biomass charcoals TiO2-coated were investigated by X-ray diffractometer (XRD) and scanning electron microscopy (SEM). our finding indicated that XRD data characteristic anatase phase reflections and SEM showed that TiO2 thin films distributed in the pores and cover on biomass charcoals. BB-TiO2 and CS- TiO2 showed high covering films of TiO2 on surface and filled full in the small pores but PW- TiO2 still had many large pores. decolorization of real textile wastewater using photocatalytic process was measured by Space Unit Method; S.U. with UV-VIS spectrophotometer. the photocatalytic tests indicated that decolorization of biomass-TiO2 were CS-TiO2, BB-TiO2 and PW-TiO2, respectively. details of the synthesis of biomass charcoals TiO2-coated and results of the characterization and decolorization studies are presented in this paper."

"besides physical test normally, early detection on the condition of the body by using the image processing of iris is an alternative method to observe the health of human's body, especially the internal organ of the body. in this paper, some image processing methodes are used to enhance the quality of iris image so that the problem that happens in area of pancreas can be detected clearly. the problem is represented by the form of broken tissue in iris. by using genetic programming, this iris image will be used as an input of an artificial intelligence system in detecting the internal organ disorder. the result of this detecting will be compared with the insulin normally test"

"Solar drying provides an alternative to the use of fossil fuel. Solar drying system is one of the most promising applications of crop drying. However, there are problems associated with the intermittent natural of solar radiation and the low intensities of solar radiation. The problems can be remedied by the use of heat storage, auxiliary energy source, control system, larger surface collector and hybrid system. However, this will result in a high capital investment. Economic indicators such as cost ofmaintenance, payback period, internal rate of return can be used to calculate the economic of it application.This paper presents the experience in Malaysia on crop drying. We also present the performance of four solar assisted drying systems for crop drying using different collector types, (a) V-groove solar collector with cabinet dryer, (b) double-pass solar collector with porous media in the lower channel and a flat bed drying chamber, (c) Solar dehumidification system and (d) Photovoltaic-thermal solar drying system."

"Pada artikel ini dibahas mengenai pengaruh mole fraction (x) dan profit germanium pada basis SiGe HBT terhadap unjuk kerja frekuensi dan noise figure (fn) devais."