Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: August 2012
Authors: Ming Gao, Chun Feng Sun
The mixture was washed with 1% of HCl and then washed with water, followed by alkaline wash using 2% of NaOH.
Then, the mixture was washed with water.
Finally, vacuum distilling was used to remove water and solvent.
Ellis, Chemistry and Technology of Epoxy Resins, Blackie Academic & Professional: London (1993) [3] H.
Online since: November 2012
Authors: Qing Lin Meng, Xu Yuan
Fig. 3 The surface infrared image taken by the thermal infrared imager carried by the airship Fig. 4 TH9260 thermal infrared imager Indoor work is achieving the operation of geometric correction, color processing and image mosaic to make infrared images meet the research standards by the professional software Image Processor Pro 2, which is taken by the infrared imager.
Point 1 is for water; point 2 for concrete ground; point 3 for white brick ground; point 4 for shale brick ground and point 5 for asphalt road.
Set the sampling interval as 1 min. when measure water surface temperature, put the thermocouple’s test point of the LuChang wind meter in water (about 1cm deep).
Online since: August 2013
Authors: Peng Li Li, Min Han, Ran Peng, Wei Ping Tian
The establishment of index system of Shaanxi highway debris flow risk First The causal factors of the highway debris flow risk The occurrence of debris flow would have three basic conditions: enormous loose debris, huge water supply in short time, and steep source catchment.
The causal analysis for subgrade subsidence (1) the internal causes include: poor choices of embankment filling, improper filling method, lack of compaction, embankment subsidence induced by loads, water, and temperature; the original ground is soft soil, but construction without replacement of soft soil, without strong compaction, or building by mixed different soils without layer-built, etc
(2) the exterior causes include: rainfall permeate into subgrade and reduce the strength and non-deformability of subgrade; surface water soak and stream washes out the foot of slopes; slopes without protective measures, etc.
Tab.1 The Index Hierarchy and the Number of the Effect Degrees of effect indexes no low moderate strong extrem The average gradient of ground (°) ≤3 3~10 10~15 15~25 >25 The cutting surface of ground surface (km/km2) ≤0.1 0.1~0.3 0.3~0.55 0.55~0.8 >0.8 precipitation (the number of days of AADP (24h) >25 mm) 1~3 d 3~5 d 5~7 d 7~9 d >9 d Coverage of vegetation (%) >80% 50%~80% 20%~50% 5%~20% 0%~5% Types of soil hard rock gravelly soil and soft rock clayish soil sandy soil loess, silty clay ground acceleration <0.05 0.05 0.1 0. 15 0.2 number for effect 1 3 5 7 10 *AADP is annual average daily precipitation The weight factors is decided by experts scoring, i.e. 75 highway experts with senior professional titles and rich experience were chose to give the scores, and then decide the weight factors.
Online since: June 2022
Authors: Alena Opálková Šišková, Jaroslava Frajová
The images have been taken by professional photographers Michal Jakubec from the BASE factory and by MFA Peter Ivančic.
Results and Discussion It has already been shown that the PET waste could be recycled by electrospinning into the air and water vapor permeable membrane with acceptable mechanical properties and excellent filtration effectivity [2, 12].
Szekely, Scavenging organic micropollutants from water with nanofibrous hypercrosslinked cyclodextrin membranes derived from green resources, Chem.
Lin, Electrospun water-borne polyurethane nanofibrous membrane as a barrier for preventing postoperative peritendinous adhesion, Int.
Online since: August 2014
Authors: Pavla Ryparová, Zuzana Rácová, Petr Bily, Alena Kohoutková
The big advantage of PVA for this purpose is the fact that it is water-soluble.
Mix composition was the same for both mixes (450 g of cement, 1350 g of sand, 225 g of water), the only difference was the cement type used.
Water solution of rhodamine B (0.05 g per liter) was prepared, 0.5 ml of the solution was applied to the area of approximately 22 cm2 in the middle of each sample.
Indoor photographic studio equipped with Nikon D300 camera and professional flashing lights was utilized.
Online since: May 2012
Authors: Jie Wang, Feng De Tang, Yan Li Yi, Xiao Yang Zhou, Xiang Rui Pang, Zhong Lin Chen, Li Man Peng, Chun Lu Yang
Acknowledgements This work was funded by the following projects: National Natural Science Foundation of China (No.41171192), Shengyang Science and Technology Plan Project (No.F11-264-1-02),Provincial Key Disciplines Construction of Liaoning University, and the Open Fund of the Key Laboratory of Water Environmental Biological Monitoring and Water Ecological Security of Liaoning Province.
Water Resour. 34 (2000) 3691-3698
[4] B.J.Alloway.Heavy meatals in soils.Blackie Academic & professional.1995
Online since: January 2016
Authors: Syahrul Affandi Saidi, Mohamad Suhaimi Jaafar, Mohammad Khairul Azhar Abdul Razab, Mazlan Mohamed, Sarizam Mamat, Hamzah Hussin, Mohammad Sukhairi Mat Rasat, Muhammad Iqbal Ahmad
Being in gaseous state, 222Rn is easily released into the atmosphere, either directly from the U-238 decay or from underground materials like soil, stones, sands, flow water and etc. [2-4].
The foam material was diluted with water using the ratio of 1:19 (0.2 L Foam material + 3.8 water = 4.0 L foam material solution).
The building material sample, LFC 1 together with the professional radon monitor model number 1027, thermometer and hygrometer were placed inside a closed fabricated perspex box.
Online since: October 2012
Authors: Dong Xiao Niu, Mei Lin, Yong Chang Lao, Yuan Lin Song
Wind power in The Taiwan Strait has the most abundant resources, followed by eastern Guangdong, Zhejiang offshore and north-central Bohai bay, relatively speaking, offshore wind resources less regional distribution in the offshore waters of the North bay, Hainan island, south and southeast northwest.
The wind energy resources in China have two characteristics:(1) The complementation between the wind energy resources season distribution and water resources.
Offshore (water depth less than 15 meters) wind resources is three times estimated than it on land in China, that is 750 million kW.
[3] Chinese renewable energy to wind power professional committee. 2011 Chinese wind power capacity statistics [EB/OL]. http://www.cwea.org.cn/upload/2011 years wind power capacity statistics.
Online since: December 2013
Authors: Bao Dong Cheng, Xiang Jie Song, Yue Wang, Wen Hua Song
This method to guide the word as the core, the more relevant professional analysis team to review systematically the analysis object, this method has the advantages of comprehensive, system, can effectively identify the potential risk of process device, to prevent accidents, especially major workplace accidents have very good effect[1][2].
Workpiece through the transmission line from treated by heat treatment furnace and into the quenching oil pool, oil pool: 2.5×5.4 × 2 m3) quenching, control the oil temperature 60 ˚C (quenching oil pool are circulating cooling water jacket and adjusting temperature).
Artifacts with the oil transmission pipeline out continue to slow, to the workpiece temperature below 30 ˚C, in clear water tank with water after cleaning, artifacts into the tempering furnace, tempering temperature control at 400 ˚C or so, and the mechanical cooling, blasting.
Online since: September 2013
Authors: Ariz Ahmad Azmy, Saravanan Karuppanan, Azmi Abdul Wahab
Corrosion occurs due to the presence of carbon dioxide (CO2), hydrogen sulphide (H2S) and free water.
Furthermore, it is also influenced by temperature, amounts of CO2 and H2S, water chemistry, flow velocity, oil or water wetting, and composition and surface condition of the steel [4].
Muhlbauer, Pipeline Risk Management Manual: Ideas, Techniques, and Resources, 3rd edition, Gulf Professional Publishing, Oxford, 2004
Showing 2311 to 2320 of 3725 items