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Online since: December 2010
Authors: Li Du, Ying Hua Wang, Bin Chen, Yu Qiang Wang
According to our current teaching methods, the vocational talents who are cultivated in this situation are qualified in their professional field.
Hydraulic engineering technology is a highly practical major course in water resources.
The teaching of water conservancy major concerns more on subject system and knowledge infusion and less on ability training and overall quality education.
There is not enough emphasis on knowledge application, creative spirits and practical ability, and professional training skills are relatively weak, which make students have mature professional skills and hardly adapt to profession changes.
(1)Let construction course teachers actively take part in practical exercises, get experience and improve professional skills.(2)Hold professional skills training courses and lectures.
Hydraulic engineering technology is a highly practical major course in water resources.
The teaching of water conservancy major concerns more on subject system and knowledge infusion and less on ability training and overall quality education.
There is not enough emphasis on knowledge application, creative spirits and practical ability, and professional training skills are relatively weak, which make students have mature professional skills and hardly adapt to profession changes.
(1)Let construction course teachers actively take part in practical exercises, get experience and improve professional skills.(2)Hold professional skills training courses and lectures.
Online since: September 2013
Authors: Shou Jun Wang, Shao Bo Fu, Xi Zheng Zhang, Lei Ting Cao, Cai Hong Shi
In this paper, cam mechanism is used as water jet transmission, and two sets of cam mechanism are used to guarantee the stability of medical water-jet pressure.
Introduction High-pressure water-jet dissection technology was originally developed in the steel and glass industries, where ultra-precise cutting and engraving were considered as professional demands[1].
The structural design of medical water-jet Fig.1 The whole structure chart of medical water-jet The whole structure chart of the medical water-jet is shown in Fig.1.
Fig.2 The schematic diagram of medical water-jet pressure The schematic diagram of medical water-jet pressure is shown in Fig.2.
“Reconstructive renal surgery using a water jet”.
Introduction High-pressure water-jet dissection technology was originally developed in the steel and glass industries, where ultra-precise cutting and engraving were considered as professional demands[1].
The structural design of medical water-jet Fig.1 The whole structure chart of medical water-jet The whole structure chart of the medical water-jet is shown in Fig.1.
Fig.2 The schematic diagram of medical water-jet pressure The schematic diagram of medical water-jet pressure is shown in Fig.2.
“Reconstructive renal surgery using a water jet”.
Online since: January 2012
Authors: Tai Xiang Peng, Yi Yong Sui, Qing Wang Yuan, Gui Shan Ren, Jian Lei Yang
At the same time, as to the popularization of information technology, there are a large number of valuable data in the processes of oil production, transportation, completion, water injection, down-hole operation, territory production.
The traditional predict methods in oil production project are based on professional model.
First the users must have the high professional knowledge, and then it ignores the usefulness of history data.
(2) It can save, expand, and mange every types of professional models.
It can be divided into two categories: professional model and decision making model.
The traditional predict methods in oil production project are based on professional model.
First the users must have the high professional knowledge, and then it ignores the usefulness of history data.
(2) It can save, expand, and mange every types of professional models.
It can be divided into two categories: professional model and decision making model.
Online since: March 2017
Authors: Jaroslav Topič, Zdeněk Prošek, Jaromír Hrůza
Recycled concrete crushed and milled to a coarser fraction used as a substitute aggregate in the concrete mix was examined by countless professionals and experts [2, 3, 4, 5], because it is a widely used method of application.
The grinding was carried out without water.
The increase of the amount of water (water/cement ratio) in the mixture is due to the higher demands of FGRC on water.
· More water in the mixture of the samples with the recycled concrete caused an increase of pores resulting from the water desiccation
· Shrinkage of cement mortar with fine ground recycled concrete is influenced by the water cement ratio, i.e. the amount of cement and mixing water
The grinding was carried out without water.
The increase of the amount of water (water/cement ratio) in the mixture is due to the higher demands of FGRC on water.
· More water in the mixture of the samples with the recycled concrete caused an increase of pores resulting from the water desiccation
· Shrinkage of cement mortar with fine ground recycled concrete is influenced by the water cement ratio, i.e. the amount of cement and mixing water
Online since: January 2012
Authors: Yi Wei, Yue Qiao, Yan Zhuo Xue
The Research on Ship Intelligence Navigation in Confined Waters
Yanzhuo Xue1,a , Yi Wei2, b and Yue Qiao3,c
1Harbin Engineering University, China
axueyanzhuo@yahoo.com.cn, bwy608760@163.com, cqiaoyue_1988@sina.com
Keywords: confined waters; intelligent collision avoidance system; artificial potential field method; turning point
Abstract.
This paper utilizes the artificial potential field method to solve ship intelligence navigation in restricted waters.
The reasons and principles of setting them are proposed to improve algorithm of ship path planning in confined waters.
Especially for inland waters, collisions and shipwreck accidents have frequently happened.
Since the end of 1980s, professional system for ship collision avoidance had been researched in Japan, England and other countries[3].
This paper utilizes the artificial potential field method to solve ship intelligence navigation in restricted waters.
The reasons and principles of setting them are proposed to improve algorithm of ship path planning in confined waters.
Especially for inland waters, collisions and shipwreck accidents have frequently happened.
Since the end of 1980s, professional system for ship collision avoidance had been researched in Japan, England and other countries[3].
Online since: December 2012
Authors: Ling Yu
Planning Method
Planning full consideration of Suzhou region characteristic, combined with Suzhou hold lake waters of the natural environment factors, outstanding water, vegetation of ecological elements regional environment of the important role.
Take the landscape of the water quality of the ecological management, coast and road the ecological design as the means, overall improve water environment.
Advocate open rules row, much professional coordination and the whole through the design of open mode and organized way and will rules row, architecture, ecological [11], ring its territory, the professional landscape member of various professional to provide for handle effectively the and group close, through several different subject, form for “ecological” this altogether with the target to the planning and design of the power.
Vertical structure more mainly reflects in wetland plant community perpendicular arranges, in the water, from shallow water and sank vegetation and vegetation floating a water vegetation riverbeds, wetland and wetland thickets, wetland meadow arbor, form a in the vertical space of the ecological sequence.
In addition in the west more visitors area, coast the rugged, will lead to the shore reed marshland serves, people can through the laid deep water plank road reed marshland serves, realize natural habitat, and overlooking 5000 the main body of waters.
Take the landscape of the water quality of the ecological management, coast and road the ecological design as the means, overall improve water environment.
Advocate open rules row, much professional coordination and the whole through the design of open mode and organized way and will rules row, architecture, ecological [11], ring its territory, the professional landscape member of various professional to provide for handle effectively the and group close, through several different subject, form for “ecological” this altogether with the target to the planning and design of the power.
Vertical structure more mainly reflects in wetland plant community perpendicular arranges, in the water, from shallow water and sank vegetation and vegetation floating a water vegetation riverbeds, wetland and wetland thickets, wetland meadow arbor, form a in the vertical space of the ecological sequence.
In addition in the west more visitors area, coast the rugged, will lead to the shore reed marshland serves, people can through the laid deep water plank road reed marshland serves, realize natural habitat, and overlooking 5000 the main body of waters.
Online since: July 2014
Authors: Jie Tan, Meng Lin Wang
There are also some cases of destroying the surrounding environment of ancient buildings, such as constructing tall buildings, chimneys, water towers, cable cars and cableways within the scope of ancient landscape.
The lack of technical professionals has made the protection work even harder.
Protection Contents and Principles The protection work of ancient buildings must obey some regulars and principles which are effective experiences concluded by many professionals.
Once again, governments should train abundant protection professionals which undertake a lot of responsibility in carrying out surveys, making complete scientific record files, and studying protection technology and maintenance method.
The lack of technical professionals has made the protection work even harder.
Protection Contents and Principles The protection work of ancient buildings must obey some regulars and principles which are effective experiences concluded by many professionals.
Once again, governments should train abundant protection professionals which undertake a lot of responsibility in carrying out surveys, making complete scientific record files, and studying protection technology and maintenance method.
Study and Application of Information Management System for Government-Invested Construction Projects
Online since: August 2013
Authors: Shao Hua Jiang, Hong Nan Li, Xiao Hui Wang, Hong Chao Ma, Jun Liu
To solve this problem, many professional management agencies have been set up by many local governments of China to be responsible for the implementation and management of construction projects invested by government.
The management mode of seting up professional management agency to be responsible for the management of construction projects invested by government, has its own characteristics.
High quality professional organizations and professional talents are introduced, the cultivation of professional technical and managerial talents are emphasized to conduct professional and fine management. (5) Informatization.
On the basis of learning from government-invested project management modes of Hong Kong, Singapore, etc., Shenzhen take the lead in establishing a professional management organization for government-invested projects (Bureau of Public Works of Shenzhen Municipality) in China to implement centralized and professional management.
So various project-related procedure of the enterprise with misbehavior is restricted and the misbehavior is recorded to professional qualification of the person.
The management mode of seting up professional management agency to be responsible for the management of construction projects invested by government, has its own characteristics.
High quality professional organizations and professional talents are introduced, the cultivation of professional technical and managerial talents are emphasized to conduct professional and fine management. (5) Informatization.
On the basis of learning from government-invested project management modes of Hong Kong, Singapore, etc., Shenzhen take the lead in establishing a professional management organization for government-invested projects (Bureau of Public Works of Shenzhen Municipality) in China to implement centralized and professional management.
So various project-related procedure of the enterprise with misbehavior is restricted and the misbehavior is recorded to professional qualification of the person.
Online since: February 2012
Authors: Yan Yan Zhang, Guang Xiang Xu, Wu Gao
(a) needle water level meter (b)ultrasonic water level meter (c)resistive water level meter
Fig.1 Present water level measurement instruments
All the water level meters mentioned above have these common characteristics: (1)The water level z is determined based on a zero point elevation z0 and the vertical distance h to the water surface, then z=z0-h; (2)Each water level meter is mounted at a fixed position and can only measure the water level just at a single point; (3)The elevation of zero point z0 is a static value.
(2)Rubber pipe: used to connect water tank and pressure sensor to transmit water pressure
Firstly mounting the water level meter at a static water tank and then use needle meter or other fixed water level gauges to measure the water level z.
The water level is then specified by the vertical distance h which is given out from zero point to water surface by the ultrasonic water level meter.
References [1] PRC Ministry of Water Resources, PRC Professional Standard of Ultrasonic Water Level Gauge(SL/184-1997)[S], China machine press,1998.6.
(2)Rubber pipe: used to connect water tank and pressure sensor to transmit water pressure
Firstly mounting the water level meter at a static water tank and then use needle meter or other fixed water level gauges to measure the water level z.
The water level is then specified by the vertical distance h which is given out from zero point to water surface by the ultrasonic water level meter.
References [1] PRC Ministry of Water Resources, PRC Professional Standard of Ultrasonic Water Level Gauge(SL/184-1997)[S], China machine press,1998.6.
Online since: September 2013
Authors: Min Li, Jian She Song, Hong Hui Sun
The atmospheric transmittance of infrared radiation is the important parameter on the studies of infrared radiation, the Computation of atmospheric transmittance is professional and complicated and it is inconvenient for the application of engineering and technology.
The precision of the atmospheric transmittance of infrared radiation is different for the different trade scientific workers, it are currently used to compute the atmospheric transmittance of infrared radiation by the professional LOWTRAN, MODTRAN and HITRAN infrared emulational software.
A mass of parameters are required for these professional software and it is difficult and inconvenient to be used for other trade scientific workers [2,3].
In the infrared emulational model , the observer height is 4 the down range distance is 9, and the object height is 1,the model atmosphere is mid latitude summer and execute with multiple scattering, the atmospheric components mainly comprise water vapor, ozone, methane, nitrous oxide, carbon monoxide and the CO2 mixing ratio is 330 , the aerosol model used is rural zone and the visible spectrometry is 23 .
The precision of the atmospheric transmittance of infrared radiation is different for the different trade scientific workers, it are currently used to compute the atmospheric transmittance of infrared radiation by the professional LOWTRAN, MODTRAN and HITRAN infrared emulational software.
A mass of parameters are required for these professional software and it is difficult and inconvenient to be used for other trade scientific workers [2,3].
In the infrared emulational model , the observer height is 4 the down range distance is 9, and the object height is 1,the model atmosphere is mid latitude summer and execute with multiple scattering, the atmospheric components mainly comprise water vapor, ozone, methane, nitrous oxide, carbon monoxide and the CO2 mixing ratio is 330 , the aerosol model used is rural zone and the visible spectrometry is 23 .