Papers by Keyword: Organic

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Authors: T.S. Lee, H.B. Choong
Abstract: This paper compares the cutting process characteristics of organic and inorganic coolant for milling process. RBD(refined, bleached & deodorized) palm olein, refined canola and soy bean oil were selected as based oil for soluble mixture(organic) while Jetkool SC95 as inorganic metalworking fluid (MWF). Throughout the research, carbide coated cutting tool and JIS SS400 mild steel are used with various feed rate, depth of cut and fixed spindle speed to determine the cutting temperature, forces and also surface roughness. Heat capacity, pH and tool wear assessment are carried out as well with same material. From the research, cutting temperature, cutting force and surface roughness are proportional to the feed rate and depth of cut. The MWFs pH level also drops after cutting process. Each MWFs showing their different strength on different assessments, overall from the results obtained, palm oil has a high potential to be marketed as organic MWF.
Authors: Guan Qin Chen, Zhang Lian Hong
Abstract: Low frequency ultrasonic treatment was applied to desorb surface organics from the surface of nanosized TiO2 photocatalyst, which was prepared by hydrothermal method using a mixture of different amounts of Ti(OBu)4, ethanol, acetone and pyridine raw materials. The UV-Vis, TG-DTA and GC-MS analysis were used to investigate the surface organics. It was found that the absorption intensity around 250nm in UV-Vis spectra of the upper transparent solution, which represents the amount of organics desorbed from the TiO2 surface, increased with increasing treatment time. Along with the TG-DTA and GC-MS analysis, the kinds and amounts of partial surface organics were roughly clarified, and these organics may correspond with the photocatalytic degradation rate for methyl orange (MO) solution under visible light irradiation (≥450nm).
Authors: Gang Cheng, Zengqi Xie, Ying Fang Zhang, Yuguang Ma, Shi Yong Liu
Abstract: A novel derivative of oligo(phenylenvinylene) (OPV), 2,5-diphenyl -1, 4-distyrylbenzene with two trans-double bonds (trans-DPDSB), is used as a blue emitting material in blue and white organic light-emitting devices (OLEDs). Blue devices with a configuration of indium-tin oxide (ITO)/N,N´-diphenyl-N,N´-bis(1-naphthyl)-(1,1´-biphenyl)-4,4´-diamine (NPB)/ trans-DPDSB / tris (8-hydroxyquinoline) aluminum (Alq3)/LiF/Al are constructed, where NPB, Alq3 and trans-DPDSB are used as hole-transporting, electron-transporting and light-emitting layers, respectively. The color of emission is changed from blue-green to pure blue when the trans-DPDSB layer is thicker. By inserting an ultrathin 5,6,11,12-tetraphenylnaphthacene (rubrene) yellow light-emitting layer between the Alq3 and trans-DPDSB layers, white OLEDs are obtained. The maximum efficiency and luminance of the blue and white devices are 1.2, 3.0 cd/A, and 1400, 7000 cd/m2, respectively.
Authors: Jin Fang Liu, Satoshi Hayakawa, Kanji Tsuru, Jian Zhong Jiang, Akiyoshi Osaka
Abstract: Rutile films were deposited on polyethylene terephatalate (PET), polytetrafluoroethylene (PTFE), Silicone, poly6-caprolactam (Nylon6), polyhexamethylene adipamide (Nylon6,6) and Nylon fiber substrates using 0.03 M TiOSO4 and 0.03 M H2O2 aqueous solution at 80°C for 24 h. The rutile films exhibited excellent in vitro bioactivity as they induced apatite deposition in a simulated body fluid (SBF).
Authors: A. Hussain, P. Akhter, A.S. Bhatti
Abstract: Gold/Zinc Phthalocyanine/n-Si metal semiconductor contact with organic interfacial layer have been developed and characterized by Current–Voltage-Temperature (I-V-T) measurements, to study its junction and charge transport properties. The junction parameters, of diode ideality factor (n), barrier height (b) and series resistance (R¬S), of the device are found to shift with device temperature. The barrier height and the diode ideality factor are found to increase and the series resistance is found to decrease with increasing device temperature. The activation energy of the charge carriers is found to be 44 meV and the peak of interface state energy distribution curves is found to shift in terms of Ess-Ev value from 0.582 eV to 0.776 eV with increasing device temperature. The data analysis implies that the Fermi level of the organic interfacial layer shifts as function of device temperature by 100 meV in the device temperature range of 283K to 343K. In terms of dominant conduction mechanism, the I-V-T data analysis confirms the fit of data to the relationship log (IV4)  V1/2 for higher device temperatures and the Poole-Frenkel type is found to be the dominant conduction mechanism for the hybrid device.
Authors: Bo Liu, Ping Xu, Ya Jun Zhang, Tao Wang, Nai Te Su
Abstract: Microorganism control has a great significance for the safety of drinking water and reclaimed water. Disinfectants and its dosing quantity are particularly important. Several common chlorine disinfectants decay models were analyzed firstly in the paper. Results showed that a combined first and second-order model was more precise than the conventional first-order model. Then, effects of water quality and pipe conditions on chlorine decay model were also researched in the paper.
Authors: A. Roche, S. Marthon, J.F. Ple, Névine Rochat, Adrien Danel, M. Olivier, M. Juhel, F. Tardif
Authors: Adrien Danel, Névine Rochat, M. Olivier, A. Roche, F. Tardif
Authors: Komila Negmatova, Shodilbek Isakov, Nodir Kobilov, Malika Negmatova, Jakhongir Negmatov, Jahongir Haydarov, Gulom Sharifov, Shuhrat Rahimov
Abstract: In this article are shown the results of researches of development of effective composite chemical reagents based on organic and inorganic ingredients for drilling fluids, used for the drilling of oil wells. In this article will give comparative properties of local drilling fluids compared with drilling fluids used in Russia, USA.
Authors: Dominic Prime, Shashi Paul
Abstract: Organic and polymer based electronic devices are currently the subject of a great deal of scientific investigation and development. This interest can be attributed to the low cost, easy processing steps and simple device structures of organic electronics when compared to conventional silicon and inorganic electronics. In the field of organic electronic memories, non-volatile, rewritable polymer memory devices (PMDs) have shown promise as a future technology where cost and compatibility with flexible substrates are important factors. In this paper PMDs based on active layers containing an admixture of polystyrene, gold nanoparticles and 8-hydroxyquinoline will be presented, showing the devices’ electrical characteristics and memory performance attributes, and where possible discussing possible mechanisms of operation.
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