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Online since: June 2011
Authors: Mei Hua Zhao, Xiao Ping Zhang
However, mulberry silk could be damaged by heat and water.
Ironing shrinking of the fabric means the change in sizes caused by heat and water after steam pressing.
Not like sample production, for bulk production, it is quite difficult to evenly and completely carry out ironing shrinking treatment to a large quantity of fabric and it can not be carried out with normal equipments so special professional equipment is needed.
Table 1 References value of the dimensional stability of silk to steam pressing Fabric Warp(%) Weft(%) silk-cotton/ satin 0.5 0.5 Pearl satin 1.2-1.5 0.8 Suzhou satin 1.2-1.5 0.8 Suzhou spandex satin 1.5-1.8 1 Crepe de Chine 2 1.2 Chiffon 1.5 1.5 Crepon 3-4 2-5 Silk crepe georgette 1.5 1 Habutae 〈=0.5 〈=0.5 water-wash Habutae 2.5 2.5 Polyester Chiffon 0.5 No shrinking Georgette 2 1 Crepe satin plain 2 1.2 Finish Ironing to the garment.
Online since: October 2012
Authors: Qing Jiang, Rong Guo Ma, Zhen Ye
Introduction Highway maintenance is a capital intensive, labor intensive, technology intensive industry, therefore it not only requires workers to have both theoretical knowledge and professional knowledge, but also requires workers to have a strong practical ability.
At present our country has built freeway is about 75% of semi rigid base asphalt concrete surface layer structure of advanced, the highway was completed, by the traffic rapid growth, large-scale vehicle, overloading, travel channel and water damage of pavement effect, have different degree of early damage, cause maintenance task.
slurry seal Construction technology of slurry seal is defined by certain grading aggregate, asphalt, emulsifier, water and additive in certain proportion mixing a slurry mixture, timely, uniformly spread on the road surface layer.
Micro table place Micro table place is dedicated to a freeway, city lines; airport pavement on high grade road surface design of maintenance technology, which is composed of polymer modified asphalt emulsion, 100% crushed aggregate, mineral filler, water and the necessary additives.
Online since: March 2015
Authors: Ping Lv, Cui Ping Li
Research on Separation and Purification of Total Anthraquinones in Radix Et Rhizoma Rhei by D301 Macroporous Resin Li cuiping1a Lv ping 2b* 1 Chengdu industrial vocational technical College, ChengDu, China 2 Tianjin professional college, TianJin, China a1789397694@qq.com bbestman_0429@163.com *corresponding author Keywords: Separation and Purification, Total Anthraquinones, Radix Et Rhizoma Rhei, D301 Macroporous Resin Abstract.
Then, put the flask into 20˚Cthermostatic water bath.
Then, use distilled water whose amount is 5 times as much as the amount of solution to wash the packing column until the water becomes clear.
Online since: May 2011
Authors: Zhen Guo Li, Bo Zhang, Jin Song Gui, Qing Meng
As a professional analysis tool, it is specifically developed for geotechnical engineering, with powerful functions, a friendly interface for users.
Its step-by-step construction mode can be given by activating or frozen soil type groups, structures, loads or changing the water level, to achieve the real simulation of construction and the excavation process.
The sheet pile is precast reinforced concrete pile , its thickness is 400mm; The anchorage structure is a cast-in-situ concrete anchorage wall , its average thickness is 650mm ;bars with a diameter 55mm are made of Q235 steel, spacing 1.5 m; through the construction process, uniformly distributed load on wharf surface is 10Kpa; the construction method is first driving the sheet pile with last digging basin;the calculated water level has considered the most unfavorable condition, taking the design low water level.
Online since: November 2012
Authors: Zhi Hao Wang, Jian Liu, Peng Fei Han, Xiao Ke Li
Testing and Control for Strands Embedded in Annular Concrete Foundation Beam of Steel Archaize Tower Xiaoke Li a, Jian Liu b, Zhihao Wang c and Pengfei Han d North China University of Water Resources and Electric Power, Zhengzhou 450011, China alixk@ncwu.edu.cn, b59993455@163.com, cwangzhihao916@126.com, d531834812@qq.com Keywords: pre-stressed concrete; annular anchor; friction coefficient; circumferential stress; field test.
Introduction Annular anchor is a special anchor system for prestressed concrete structures used in water conservancy project, municipal engineering, silo, gas and oil storage tanks, reactor containment, and so on.
More than that, the actual effects of prestressing steel reinforcement could be tested by embedded professional sensors in the structure.
Zhao, Method of designing steel-lined prestressed concrete penstock, Water Resources and Hydropower Engineering, 4 (2004) 25-29.
Online since: November 2015
Authors: Milan Nikolić, Dragan Jocić, Zoran Nikolić, Predrag Dašić
It produces heating energy distributed by heat water network, which consists of three main water lines to the HTS.
In the HTS the consumed heat energy reading is performed and flow control reading so that all users have a quality heating and domestic hot water.
In heating technology, the term heat exchanger implies the apparatus in which the exchange of steam, warm water or hot water is performed [3].
For forced circulation of water in heat water network circulation pumps are used.
The main form reflects the structure of the hot-water system where, as noted in the first part of the paper, the produced heating energy is distributed to the HTS by hot water pipeline network, which consists of three main pipelines (Fig. 3).
Online since: February 2013
Authors: Luo Jun Gong, Gui Ping Li, Qian Qian Yan, Lei Wang, Wen Chao Li, Wei Han
Artificial wetland sewage treatment system has the characteristics including adapted to scale flexible, low construction cost and maintenance requirements is not high, Particularly suit for the the rural area where have certain drought or waste land, Lack of financial and professional and technical personnel and the sewage is more dispersed[3].
The early work in design. 1) Determine the discharge water quality standards.
According to the area of the sewage treatment facilities and the requirement of receiving water bodies after the sewage treatment to determine the standard of the effluent standard discharge, in order to determine the level of the sewage treatment facilities. 2) Population surveys, water amount definition, water quality measurement, to determine the scale of construction. 3) Field survey, selected sites.
Water is a precious resource, sewage is also needed to effectively use.
Therefore, in the treatment of sewage discharge, to focus on water to, saving the precious water resource.
Online since: August 2009
Authors: S.J. Li, K.C. Tzeng, C.Y. Chiu, C.Y. Liao, J.J. Hsu, Z.P. Lin, Kuo Shan Yao, Ta Chih Cheng, Chen Yu Chang
In this study, silica nanoparticles were prepared using the water-in-oil (w/o) microemulsion method.
However, the operation procedure is time-consuming, expensive and requires professional technicians to operate the instruments.
However, semiconductor nanoparticles are limited in application due to sticking and glistening quantum dots, and poor solubility in water [2, 3].
Subsequently the FSNP were acquired by centrifuging and repeatedly washing three times with ethanol and de-ionized water to remove any surfactant and un-reacted chemicals.
The activation FSNP was obtained through centrifugation at 6,000 rpm for 10 min and then completely washed with deionized water for three times.
Online since: December 2012
Authors: Wu Di Zhang, Qiu Min Li, Fang Yin, Fa Gen Yang, Xing Ling Zhao, Jing Liu
China 2Baoshan Medium Professional School, Baoshan 678000, P.
Organic fertilizer is release fertilizer, and is conducive to the transformation of the production area of the soil to enhance retain water and nutrients capacity, it not only can reduce the irrigation water, also reduce the leaching of nitrate to the soil to reduce the pollution of groundwater.
and/or insectaries Enhances biodiversity, supports biological pest management, provides wildlife habitat Buffer areas Improves water quality, enhances biodiversity, prevents wind erosion Organic agriculture is good for soil improvement and protection of water environment.
Soil organic matter is essential to the air and water quality.
[14] Biao Xie, Xiaorong Wang, Zhuhong Ding.Soil and Water Conservation.vol2 (2002),p.71-74.
Online since: January 2012
Authors: Qiu Yue Hua
View from the village’s infrastructure development, there still exist some problems such as poor infrastructure conditions, no guarantee of water and electricity, the level of the roads relatively low, hardening rate of tractor roads very small, lack of irrigation and conservancy development.
Joint development between industry and agriculture by the industrial sector push forward agriculture sector, the modern transformation of agriculture, promotion agricultural production and facilities of the scale, take the road of intensive development; the promotion of agricultural planting and management of modern science and technology, improve the efficiency of agricultural production, to go eco-cycle development; promote regional market integration and agricultural products into the market, vigorously promote the industry chain of the scale of agriculture, ecological agriculture, to improve the market ability to adapt, refine and reasonable division of labor in agriculture , take the road of professional production.
Under the background of overall plan the urban and rural, regional industry and market integration, technology trading company guide professional farmers planting decentralized production.
Farmers’ organizations promote the formation of professional planting.
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