A contrastive study of the adnominal Content Complex in Japanese and German

PDF/A形式により利用可能アクセス:WWWによる東京外国語大学大学院総合国際学研究科博士 (学術) 論文 (2018年6月)博甲第250号参考文献: p214-219東京外国語大学 (Tokyo University of Foreign Studies)博士 (学術

Impact of ultraviolet irradiation processing on quality of fresh beef meat during cold storage.

Meat is an excellent source of many nutrients, especially protein, B vitamins, iron and zinc. As a nutrient dense food, meat provides major nutritive contributions to your diet relative to the amount of calories it contains. The objective is studying the effect of ultraviolet (UV) radiation on the fresh beef quality during cold storage with respect to survival and growth of bacteria, shelf-life, chemical, physical and color properties. Fresh beef was exposed to three doses (12.7, 25.5 and 38.2W.s/cm2) of ultraviolet (254nm). The obtained results were indicated that: 1) the UV radiation was leaded to reduce the total number of microorganisms 3.7x104, 5.8x103 and 103.  Meanwhile, the shelf lives of the treated samples were increased 10, 15 and 20 days in the irradiated beef samples at UV radiation doses of 12.7, 25.5 and 38.2W.s/cm2 respectively. 2) For the chemical properties the moisture content was decreasing in from 77.63 to 74.8, 73.82 and 73.6%; protein content from 21.31 to 19.61, 19.22 and 18.15%; collagen content from 2.29 to 1.7, 1.58 and 1.55 and fat content form 2.87 to 2.67, 2.53 and 2.41%. Meanwhile, there were increasing in the pH values from 5.86 to 6.73, 6.79 and 6.74, and TBA values increased from 0.73 to 1.86, 2.45 and 2.53mg malonaldehyde/1kg by UV radiation during cold storage period for control and UV radiation doses 12.7, 25.5 and 38.2W.s/cm2 respectively. 3) The physical parameters like cooking loss were slightly decreasing from 46.44 to 35.21, 36.28 and 35.39%; share force form 2.86 to 1.01, 0.93 and 1.22 Kgf and water holding capacity from 77.69 to 73.61, 73.51 and 72.91% for control and UV radiation doses 12.7, 25.5 and 38.2W.s/cm2 of treated beef samples during cold storage respectively. 4) For color properties UV irradiated samples had higher Hue degree from 25.04 to 31.7, 32.51 and 33.07 degree. Meanwhile, lightness values were decreased from 37.21 to 28.76, 29.05 and 28.66 and saturation values from 31.05 to 19.67, 19.92 and 20.03 for control and UV radiation doses 12.7, 25.5 and 38.2W.s/cm2 respectively. 5) It was concluded that UV radiation had significant impacts on microbial quality, extend shelf-life of fresh beef, chemical and physical parameters and color attributes of fresh beef during cold storage.

Investigation on the Relationship between Fracture dimensions and Proppant Selection for Shale Gas Reservoir

The Search for new sources of energy has always been motivated by both economical and political reasons. This made the oil and gas industry look into resources that was overlooked before. Shale gas reservoirs represent a huge potential for gas reserves. However, the production process from shale gas is very complex due to the low permeability and the dual porosity nature of shale formation. Many parameters affect the process which in turn make the optimization of these parameters a very complex process. This project aims to create a matlab program to solve for a model of equations to arrive at the optimal parameters for the fracturing stimulation. This program uses the unified fracture design model to calculate the optimum fracture width and length for maximum fracture conductivity. In this project, the fracturing process of the reservoir is analyzed while explaining the role of the proppant agent selection and the fracture width for an optimal productivity after the process. The selection of the proppant is also discussed to arrive to the best proppant selection based on the type, size and concentration of the proppant

Performance comparison of conventional synchronous reluctance machines and PM-assisted types with combined star-delta winding

This paper compares four prototype Synchronous Reluctance Motors (SynRMs) having an identical geometry of iron lamination stacks in the stator and rotor. Two different stator winding layouts are employed: a conventional three-phase star connection and a combined star-delta winding. In addition, two rotors are considered: a conventional rotor without magnets and a rotor with ferrite magnets. The performance of the four SynRMs is evaluated using a two-dimensional (2D) Finite Element Model (FEM). For the same copper volume and current, the combined star-delta-connected stator with Permanent Magnets (PMs) in the rotor corresponds to an approximately 22% increase in the output torque at rated current and speed compared to the conventional machine. This improvement is mainly thanks to adding ferrite PMs in the rotor as well as to the improved winding factor of the combined star-delta winding. The torque gain increases up to 150% for low current. Moreover, the rated efficiency is 93.60% compared to 92.10% for the conventional machine. On the other hand, the impact on the power factor and losses of SynRM when using the star-delta windings instead of the star windings is merely negligible. The theoretical results are experimentally validated using four identical prototype machines with identical lamination stacks but different rotors and winding layouts

Performance evaluation of synchronous reluctance motors with and without permanent magnets

Nowadays, a growing interest in the efficiency and the cost of electrical machines has been noticed. Therefore, Synchronous Reluctance Motors (SynRMs) have become more attractive, thanks to their higher efficiency and nevertheless acceptable cost compared to induction machines. The rotor design of SynRMs with or without permanent magnets (PMs) has a huge effect on the motor efficiency, torque density and power factor. This paper introduces an evaluation for the performance of SynRMs with and without PMs in terms of efficiency, torque and power factor maps. Three different rotor designs for the same machine have been compared. For one machine, the experimental measurements have been obtained and the validation of the simulation results have been confirme

エジプトシナイ半島西央部に分布する下部石炭系Um Bogma層(ビゼー統)の岩相層序および古生物(四射サンゴと異放サンゴ)の研究

博士(理学)大阪市立大

The impact of using produced water for plant irrigation and its effects on plants and soil characteristics

In this study, locally produced water was physically and chemically characterized. The results showed high concentration of total dissolved solids (TDS), chloride, sodium, boron ions and sodium adsorption ratio as 300, 122, 61, 0.038 g/L and 139.9 meq/L respectively. The generated water was used after different dilution:0, 10, 20, 30, 40 and 50% for plant irrigation in greenhouse for Medicago sativa, Zea mays, Helianthus annus, Sorghum bicolor, Phramites australis and Salsola baryosma using a complete randomized design with three replications. The results showed that all plants could not survive except Medicago sativa which tolerated up to 10% produced water with a decrease in intensity, length and biomass. Salsola baryosma tolerated up to20% produced water without any significance differences on the morphological characteristics. The FTIR results for Salsola tissues showed that cellulose structure has the great role in metals adsorption and transportation inside the plant tissue through the shifting or disappearance in transmission bands at 1028, 1334, 2852 and 2921 cm-1. The soil used in this study was sandy loam which showed a huge accumulation of sodium ions with increase in salinity and sodium adsorption ratio (SAR). The organic contents of produced water were below detection limits of gas chromatography (GC) and ultra-performance liquid chromatography (UPLC) instruments after dilutions at different levels. The results of polycyclic aromatic hydrocarbons (PAHs) extraction showed accumulation of less polar PAHs in 30% irrigated soil