Advanced Materials Research Vols. 332-334

Abstract: This document he 20-25 years old female university students from Jiangsu province in China and Seoul in South Korea were chosen as the subjects. The method of simple random sampling and analyzing questionnaires was employed and the questionnaire content are following: 50 questions referring body cognition and figure satisfaction and 11 questions investigating subjects’ acceptence of various clothing styles. Responses data were collected and processed by the SPSS (17.0 for Windows) statistical software and statistical methods of Descriptive analysis, Crosstabs, Mean multiple comparison (Duncan) was employed. This study focused on female college students’ self-figure cognition, self-figure satisfaction and dressing desire and would offer reference and advice about developing China’s and South Korea’s apparel trade.

Abstract: China is the world's largest producer of business wear, and it is also the world's largest potential consumer of business wear. Business wear as sign and image symbol, which is the direct reflection of an industry (corporate) overall strength. With the entry of foreign banks, domestic banks in our country have an unprecedented impact. They are facing many challenges as well as many opportunities. Business wear in China's banking system will have a new attitude in front of the world.

Abstract: This study discussed the use of gelatin microspheres (GMSs) prepared by the inverse suspension cross-linking reaction for the removal of direct dye from aqueous solution. The Biot number was determined using internal mass transfer coefficient and the external mass transfer coefficient estimated using Mathews and Weber model. The Biot number estimated provides that internal mass transfer controls the mechanism of adsorption of direct dye onto GMSs. The Langmuir and Freundlich adsorption models were applied to describe the equilibrium isotherms. The Langmuir monolayer adsorption capacity of GMSs was estimated as 584.2 mg/g for direct red 81 (DR81) and 566.5 mg/g for direct blue 78 (DB78). The quite high adsorption capacity GMSs will provide an important advantage for use of this material in the treatment of direct wastewater.

Abstract: A combined process of flocculation and Fenton oxidation was studied for the treatment of polymerization effluents (PME) from the manufacture of dry-spun acrylic fibers. 5 inorganic and 3 organic flocculants were investigated and the optimal regents and conditons were PAC (at 25°C, pH=8 and a dosage of 150 mg/L), and Z7650 (at 25°C, pH=6 and a dosage of 10 mg/L). Under this condition, the COD was removed by 23.1% of the initial 1824 mg/L. The optimum efficiency of Fenton process was determined at 25°C and pH=4 with a reaction time of 90 min. The dosage of H₂O₂ and the rate of c(H₂O₂)/c(FeSO₄) were respectively 0.53 mol/L and 20:1. Finally, the removal of COD, total nitrogen, ammonia, SO₃^2- and turbidity by the combined process were 64.0%, 99.3%, 99.6%, 99.7% and 89.4% respectively. BOD/COD was also improved from 0.09 to 0.25.

Abstract: Based on the textile industry, the author utilized the regression analysis theory to conduct the regression analysis of wastewater reduction intensity to capital asserts investment, wastewater reduction intensity to the global market share of textiles and the Revealed Comparative Advantages Index (RCA )respectively, and finally drew a conclusion that the correlation between cleaner production investment and wastewater reduction remains positive, so does the correlation between wastewater reduction intensity and the global market share of textiles. The relationship between RCA of export textiles and the wastewater reduction intensity appears positive, and then negative and eventually positive again. The improvement of Chinese textiles competitive power in the globe is stimulated by cleaner production.

Abstract: Polymerization effluents (PME) from dry-spun acrylic fiber manufacturing are hard to degrade. This paper evaluated the distribution characteristics of PME pollutants by means of multi scale membrane filtrations, including microfiltration (5 μm and 1 μm), ultrafiltration (50 KD, 10 KD and 6 KD), nanofiltration and reverse osmosis. Scanning electron microscopy (SEM) and laser particle size analyzer (LPSA) tests were also used as assistant measurements. The majority of particles in PME are mainly categorized as supracolloidal structures. 70% of them rage from 5 μm to 20 μm with a median size of 9.99 μm. Particulate, colloidal and soluble portions contribute 7.6%, 8.2% and 75.2% to the initial COD, meaning that the soluble fraction, which is also poor in biodegradability, plays a key role in PME treatment. 26.8% of TN, mainly consisting of various acrylonitrile copolymers, exists in the colloidal portion; while 70.5% of it, mainly comprised of ammonia, cyanide and nitrile, distributes in the soluble portion. The distribution characteristics of ammonia and SO₃^2- are similar. Respectively 92.7% and 94.7% distributes in the soluble portion.

Abstract: The effect and law of photocatalytic degradation of reactive gaudy red X-3B dye were investigate and the applied process parameters were determined.Using self-synthesized immobilized Fe³⁺- TiO₂ photocatalyst,self-made catalytic oxidation reactor was made to research on reactive gaudy red X-3B dye wastewater by using light source of 20W UV sterilization light.The effects of immobilized Fe³⁺- TiO₂ catalyst content、pH value、Fe³⁺doping content and adding trace H₂O₂ on photocatalytic degradation were discussed.The experimental result show that reactive gaudy red X-3B dye wastewater decolorization rate and the removal rate of COD are more than 99% and 90% when the initial reactive gaudy red X-3B dye wastewater concentration was 50mg/L,pH value was 3,input amount of catalyst was 10g/L,Fe³⁺doping content was 0.5% and the dosage of H₂O₂ was 0.6mL/L(3%).Immobilized Fe³⁺- TiO₂ photocatalyst can remove the color and persistent organic pollutants in reactive gaudy red X-3B dye wastewater effectively.

Abstract: In this paper, it uses a manikin to test effect of wind velocity on the surface of clothing thermal resistance, and concludes that with the increase of wind velocity, the heat resistance of the clothing decrease rapidly. A seven-point thermal sensation scale was used to evaluate thermal sensation in Tianjin area, the result shows that the neutral temperature is 27.2 °C when the wind velocity is 0.82 m/s . Above 3.2°C is higher than the current specification recommended indoor temperature 24°C. It shows an appropriate increase indoor air velocity can improve the building comfortable temperature. Saving energy 29.7％一41.6％.So provides an effective way reducing the energy consumption of the air conditioning system.

Abstract: Carbon fibers combine low weight and exceptional mechanical properties,making them ideal reinforcements forpolymer composite materials. An attempt has been made to review and analyze the development and problems made during last few decades in the field of carbon fiber reinforced polyamide composites. The recent advance of research, structure and property, the advanced techniques were summarized in this paper. In accordance with the hot spots of the research, the interface behavior, reinforcement and toughening of this type of material were expounded specially. Finally, the prospect and development of this composite were analyzed.

Abstract: An unsteady-state heat transfer numerical model of the microclimate between human skin and clothing is set up. Air-gap thickness less than 17mm is considered. Matlab pde toolbox is chosen to compute the numerical model. The numerical results of the model agrees well with a set of published experimental data.