IN THIS RESEARCH, TIO2 NANOFIBERS WERE SYNTHESIZED USING POLYMERIZED GRAPHEME OXIDE (GO-G-PCA) AND POLY VINYL PYROLIDONE (PVP) / TITANIUM TETRA ISOPROPOXIDE (TI (OIPR)4 AS PRECURSORS WITH ELECTROSPINNING TECHNIQUE...

THE ACTIVATED HYDROGEN OF GLYOXIME IS CAPABLE OF REACTING WITH NITRIC ACID CONTAINING HNO3 [1] OR WITH NITROGEN DIOXIDE ITSELF [2] YIELDING NITROGLYOXIME, AN EXPLOSIVE NITROLIC ACID.NITROGLYOXIME (FIGURE 1) IS TOO UNSTABLE TO BE OF ANY PRACTICAL USE. IT MELTS AT 111OC WITH DECOMPOSITION AND EXPLODES ON FURTHER HEATING [1]. IT IS SOLUBLE IN WATER (DECOMPOSED BY HOT WATER) ALCOHOL, ETHER AND ACETONE, VERY SLIGHTLY SOLUBLE IN BENZENE, MORE SO IN BOILING BENZENE. IT IS INSOLUBLE IN CHLOROFORM AND PETROLEUM ETHER [1]. THE BASIC LEAD SALT OF NITROGLYOXIME (C2H2N3O4.PB.O.PB.C2H2N3O4) WAS FIRST REPORTED BY BAMBERGER [1] AS BEING THE YELLOW PRECIPITATE THAT FORMS FROM COMBINING AQUEOUS SOLUTIONS OF NITROGLYOXIME AND LEAD ACETATE, AND IS SAID TO EXPLODE WHEN IGNITED [2]. BAMBERGER ALSO FORMED EXPLOSIVE HYDRAZINE, POTASSIUM AND SILVER SALTS methodS: PLEASE INCLUDE SPECIFIC EXPERIMENTAL SETUP AND THE PROCEDURE OF THE WORK DONE. PLEASE NOTE TO NOT INCLUDE THE NAME OF THE INSTRUMENTS AND THE REAGENTS. [2].5 G GLYOXIME WAS DISSOLVED INTO 150 ML DIETHYL ETHER AND POURED INTO A 250 ML MEASURING CYLINDER. NITROGEN DIOXIDE WAS PRODUCED BY REACTING A PIECE OF COPPER PIPE WITH 85 ML OF 70% NITRIC ACID. THE NITROGEN DIOXIDE WAS PASSED THROUGH THE SOLUTION UNTIL THE REACTOR WAS EXHAUSTED. THE ETHER SOLUTION WAS FILTERED AND EVAPORATED IN A 1000 ML WIDE FORM BEAKER IN THE SUN UNTIL DRY. THE ONLY PRODUCT OBTAINED WAS A YELLOWISH RED EXPLOSIVE OIL THAT SMELLED OF NITROGEN OXIDES AND FLASHED WHEN HEATED ON A SPOON. TO RECLAIM ANY NITROGLYOXIME THAT MAY HAVE BEEN PRESENT IN THE OIL, IT WAS POURED INTO AN AQUEOUS SOLUTION OF LEAD ACETATE. THIS PRODUCED A RED SOLUTION AND A SMALL QUANTITY OF YELLOW PRECIPITATE THAT WAS FILTERED AND DRIED. GLYOXIME ITSELF WILL NOT FORM A PRECIPITATE FROM LEAD ACETATE. THE SYNTHESIS OF NITROGLYOXIME WAS ALSO ATTEMPTED BY THE ACTION OF N2O4 ON SOLID GLYOXIME, WHEN A STREAM OF NO2 WAS PIPED OVER THE GLYOXIME IN AN IMPROVISED GLASS CONDENSOR COOLED BY NH4NO3/H2O. THE REACTION WAS HYPERGOLIC, BURSTING INTO FLAMES.

CCD PHOTOMETRY IS A NEW WAY THAT TODAY IS USED IN ASTRONOMICAL MEASUREMENTS FAIRLY EXTENSIVELY. PHOTOMETERS BASED ON CCD TECHNOLOGY CAN BE REPLACED WITH PHOTOELECTRIC PHOTOMETERS. THESE PHOTOMETERS HAVE VARIOUS ADVANTAGES TO PHOTOELECTRIC PHOTOMETERS. IN THE MEASUREMENTS MADE BY CCD, IT RESPONSE TO DIFFERENT INTENSITIES, IS CONSIDERED TO BE LINEAR. IN THE SATURATION STATE BECAUSE OF THE OVERLOADING FROM THE NEXT PIXELS, THE RESPONSE IS NOT LINEAR. PHOTOGRAPHY FROM DIFFERENT STARS SO BECAUSE OF THAT NO PIXEL IS SATURATED WILL BE DIFFICULT. SPECIALLY FOR SHINY OBJECTS, THE PIXELS WILL BE SATURATED. IN THIS PAPER, WE HAVE TRIED TO IDENTIFY THE NONLINEAR EFFECTS OF SATURATION. THE SENSITIVITY CURVE OF THE INTENSITY OF SBIG ST6 CCD CAMERA WITH DIFFERENT OBSERVATIONS, AND CALCULATIONS IS CONSIDERED, THAT THE CURVE IS NOT LINEAR. IN THE PRESENTED SOLUTION, WE CAN REDUCE THE EFFECT OF STARLIGHT AND THE EXPOSURE TIME ON THE MEASUREMENTS. ALL OF THE CALCULATIONS ARE MADE IN MATLAB 6.5.

THIS PAPER REPRESENTS THE AIR DEHUMIDIFICATION PROCESS OCCURRING IN AN ABSORPTION COLUMN WITH RANDOM PACKING USING AQUEOUS CALCIUM CHLORIDE DESICCANT. THE EFFECT OF FOUR CONTROL FACTORS INCLUDING CONCENTRATION OF DESICCANT, FLOW RATE RATIO, TEMPERATURE AND HUMIDITY OF AIR, EACH IN FIVE LEVELS, WERE STUDIED USING CENTRAL COMPOSITE DESIGN (CCD) method. A QUADRATIC MATHEMATICAL EQUATION WAS DERIVED FOR PREDICTION OF DEHUMIDIFICATION MASS RATE. THE OPTIMUM CONDITION DETERMINED BY THE ANALYSIS OF VARIANCE (ANOVA) RESULTED IN 0.11864 G/S FOR THE MAXIMUM DUHUMIDIFICATION MASS RATE WHERE DESICCANT CONCENTRATION IS 0.47KG/KG, THE FLOW RATE RATIO IS 1.1, AIR TEMPERATURE IS 32.7 OC AND AIR HUMIDITY RATIO IS 0.0195KG/KG. OBTAINED RESULTS SHOWED A REASONABLE AGREEMENT BETWEEN THE MODEL AND EXPERIMENTAL DATA WITH ACCEPTABLE R2 (COEFFICIENT OF DETERMINATION).