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Online since: July 2015
Authors: Qiang Xia, Ting Kang Xing, Rui Sun, Hong Zhang
Resveratrol has been intensively researched by health professionals in the past decades, the interest in resveratrol has increased due to several other pharmacological effects and properties, which include neuroprotection, anti-inflammatory effects, chemopreventive and antiaging properties, and its potential role in diabetes and obesity prevention [6].
However, resveratrol is chemical unstable and low water solubility, which keeps it from widely application.
At the same time, a certain amount of emulsifiers were dissolved in ultrapure water at the same temperature.
As a result of the smallest particle size, NLC-8 may possess the highest occlusion effect, which could reduce the corneum water losing and increase water content in the skin, leading to the disturbance of barrier function.
Dynamic surface tension and adsorption mechanisms of surfactants at the air-water interface.
Online since: June 2020
Authors: Alokesh Pramanik, Moola Mohan Reddy, Sujan Debnath, Anslem Wong Tsu An, Vincent Lee Chieng Chen
In the engineering field, the alternative reinforcement of natural fibers has raised high interest by professionals, researchers and scientists due to the superior properties such as high specific strength, low cost, low weight and good mechanical properties [1].
Next, the mixture was immersed in the disposal cup into a beaker of warm water at 60℃ for 5 minutes.
For instance, the water absorption has reduced from 17% to 12% after exposure to plain water for six weeks for the composites with nanosilica.
"Effect of water absorption on the mechanical and dielectric properties of nano-alumina filled epoxy nanocomposites.”
"Effect of water absorption on dimensional stability and impact energy of jute fibre reinforced polypropylene
Online since: December 2013
Authors: Yan Feng, Bing Feng Xu, Yue Xue, Guo Juan Wu
Basin Rural Water Environment Condition Basin Rural Water Environment Problem Analysis.
Water was polluted since the late 1970s.
Pesticides and fertilizers use, sewage irrigation, mulch residue cause water pollution in soil, surface water and underground water.
Because sewage discharges intermittently and randomly, the region sets low water standards and the quanlity and quantity of water fluctuate.
In the case of relatively week economics, complex geographical conditions, lack of professional management in Dianchi Lake Basin, based on site survey and rural sewage treatment technique in other place,this paper try to find out the most economical technique equipped with less investment, low energy consumption, convenient management, good effect, well anti-impact capability. 1) Enhanced Ecological Wetland Technique.
Online since: January 2014
Authors: Chong Zheng, Qing Liu
However, due to the difficulty of maritime control in inland complex waters and the lack of attention to inland waters development, there are some problems in the maritime control in inland complex waters.
Firstly, as the lower barriers to entry than seafarers, inland crews’ qualities are generally low and they are short of professional training.
The indexes must be selected based on the complexity of the inland complex waters.
The complex waters there have more tidal flats and long fog period.
Conclusions According to the maritime control status in inland complex waters, this paper established a performance evaluation model of maritime control in inland complex waters.
Online since: September 2013
Authors: Xin Hong Zhang, Chun Fang Lei, Hong Fei Li
From June to September every year, the concentrated rainfall in their drainage area, especially the strong rainfall, usually increased the anabranches runoff sharply in short time and caused water level of the Yellow River trunk stream rise quickly at the city district, and that usually brought out flood disasters accordingly.
In 1805, "water level of the Yellow River rose suddenly and sharply at Lanzhou city during the evening time in June 19th...
The earthquake disaster and secondary disasters would seriously damaged buildings, roads, electricity facilities, water supply and drainage facilities, and also would sharply reduce the suitable construction land in city district.
Simultaneously, the city prevention disaster planning is only a professional planning in city general planning, and not a statutory planning, and its content is appeared with several single disaster preventions, which are earthquake disaster reduction planning, flood control planning, geology disaster prevention planning, etc.
And formulate integrated disaster prevention planning and disaster emergency plan by organizing professionals and relevant departments.
Online since: May 2011
Authors: Meng Liu, Chun Yu Huang, Qun Ying Cheng
Therefore, the energy consumption in buildings will increase as the whole country goes[1], attracting great attention from relevant professionals and policy-makers.
In which, the power is the dominant carrier for HVAC, lighting, other services appliances; natural gas is mainly used for restaurant, hot water supply and winter heating and the oil is only for winter heating when the oil-fired boiler is adopted.
Online since: September 2011
Authors: Xin Hua Zhao, Xue Wei Zhao, Xi Zheng Zhang
But until 1990 Rau and other professors really begins to use professional design of water knife in clinical applications in Germany [1].
Industrial water jet has a wide working pressure range, therefore the nozzle materials of water jet are various.
“A new study of water knife debridement equipment”.
“High pressure water cutting nozzles research”.
Water jet cutting technology and application”.
Online since: May 2012
Authors: Hai Bo Jiang, Hang Guo, Jie Liu
If the tower is installed on the reefs, its bottom will be in direct contact with air and sea water hence its corrosion is easier than a single environment.
We suggest take measures focusing on coatings system which includes isolation of materials, anti-rust sealing [4], complete sealing of wind turbine's cabin, to prevent high-salt high-water air into the cabin with shell cooling mode in stead of air cooling mode. 3) While installation one of the critical factors is to consider how to balance the overturning moment from typhoon.
As the density of water is over 800 times of the air and considering the above data, we conclude that the South China Sea wave energy and ocean current energy resources are relatively abundant.
Fourth, all the components are different with their corresponding available ones in market on the structure, materials, processing technology, thus are required to re-design, manufacturing alone, so the cost of the wave or ocean current power generation equipment is times or even hundreds of times of cost of the same power wind equipment in the market. 3) Installation is difficult There has to be professional divers for submarine installation, so foundation construction is extremely difficult.
On the other hand, people on coral reefs lacks management experience, professional repair knowledge or diving skill which would probably cause permanent dysfunction of the equipments [6]. 2.3 Application feasibility analysis With the comprehensive analysis of the pros and cons of wave and ocean current energy for power generation, we conclude the infeasibility of power generation in coral reefs within future ten years.
Online since: June 2014
Authors: Xin Wu, Liu Yang, Jian Ping Shi, Yang Yan
Many people, including some professionals, have such misunderstanding of environmental-friendly buildings today: new techniques must be used and the cost must be high.
In order to prevent the steam getting into insulating layer through the structural layer, and making water-drops, which damages the function of heat preservation moisture barrier can be put under the layer.
Usually, waterproofing paint and brushing matched with rubber roll-roofing 2mm,or adding a layer of stones or ceramsite as ventilate layer onto the insulating layer, or making screen-coat and water-proof coiled material.
Using solar energy to provide hot water, heating and air conditioning is an effective method to realize the adaptation to cold climate, thermal insulation and energy saving of the buildings like solar-thermal wall and roof, etc.
Moreover, renewable energy such as wind energy, biomass energy, water energy in cold district can play an important role in climate adaptability of the buildings.
Online since: January 2013
Authors: Yu Wen Ju, Yu Cong Zhang, Ji Yuan Wu
The coastal areas of soft clay generally have a large thickness, high water content, void ratio, low-intensity, high-sensitivity, high compression resistance, low permeability characteristics.
Cement mixing pile construction quality control points Application of cement mixing pile technology must pay attention to the choice of the construction site, one must be a case of normal consolidation, and the second be mud soil, plain fill, organic soil, peat soil and a high water content foundation and its bearing capacity of the standard value must be less than 120kpa the soft ground.
The reasonable position excavation formulated grout mortar pool with cement mortar surface waterproofing treatment; water to clean the entire pipe and test whether the pipeline clogging, until the water is drained before drilling.
Applications in cement mixed piles of soft ground treatment needs to pay attention to several matters In cement mixing pile construction should be selected professional staff responsible for, and full implementation of monitoring.
It should be selected site construction records of professional personnel at the construction, detailed records the construction pile Date, shotcrete depth, the rig speed, stop pulp elevation, slurry flow and complex mix depth matters[7].
Showing 921 to 930 of 3745 items