Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: August 2010
Authors: Wei Wang, Ai Zhao Zhou, Na Li
Introduction
Prevention and reduction the safety risk of building is one of the most important parts of building
design, and it is the most interesting topic to engineers in the profession [1,2].
What's more, initial settlement would be enlarged because of foundation soil strength reduction during building construction disturbance.
What's more, we can adopt mathematics function to predict future settlement based on monitored settlement data, one typical function is[9]: 2 ( ) ( )exp[ ( ) ] c s t s s m m t = − − − (6) where s(t) is settlement at time point t; s is total settlement same to the equation (1); m1, m2, and c are positive determined calculating parameters which can be obtained by analysis on monitored data.
Differential settlement is most dangerous to building, and its reduction is a effective way to plus reliability of building safety.
Reliability of building relies on development of soil mechanism, superstructure analysis theory and back analysis from field monitoring data.
What's more, initial settlement would be enlarged because of foundation soil strength reduction during building construction disturbance.
What's more, we can adopt mathematics function to predict future settlement based on monitored settlement data, one typical function is[9]: 2 ( ) ( )exp[ ( ) ] c s t s s m m t = − − − (6) where s(t) is settlement at time point t; s is total settlement same to the equation (1); m1, m2, and c are positive determined calculating parameters which can be obtained by analysis on monitored data.
Differential settlement is most dangerous to building, and its reduction is a effective way to plus reliability of building safety.
Reliability of building relies on development of soil mechanism, superstructure analysis theory and back analysis from field monitoring data.
Online since: October 2014
Authors: Zulkarnain Abdul Latiff, Azhar Abdul Aziz, Mohd Farid Muhamad Said, Amin Mahmoudzadeh Andwari
One high-speed data acquisition system called DEWE5000, which is connected to DEWESoft and DEWECa software are used to logging the data.
Amongst each variation of the In/Ex EGR and the AFR, all of the data are recorded.
On account of induced CAI combustion, the engine could be run with considerable reduction of variation of IMEP, when the fractions of the In/Ex-EGR were applied.
Results depict substantial reduction of fuel consumption and exhaust emissions, since the engine is run at ultra-lean charge operation condition.
Okada, Analysis on fuel economy improvement and exhaust emission reduction in a two-stroke engine by using an exhaust valve, SAE Technical Paper. 951764 (1995)
Amongst each variation of the In/Ex EGR and the AFR, all of the data are recorded.
On account of induced CAI combustion, the engine could be run with considerable reduction of variation of IMEP, when the fractions of the In/Ex-EGR were applied.
Results depict substantial reduction of fuel consumption and exhaust emissions, since the engine is run at ultra-lean charge operation condition.
Okada, Analysis on fuel economy improvement and exhaust emission reduction in a two-stroke engine by using an exhaust valve, SAE Technical Paper. 951764 (1995)
Online since: October 2014
Authors: Florin Pantilimonescu, Stefan Grigoras, Lucian Constantin Hanganu, Mihaita Peptanariu, Irina Ionescu, Georgeta Lidia Potop, Alina Iovan-Dragomir, Stela Carmen Hanganu
This study demonstrates clear that ultrasounds can be used to improve the consumption of the coloring substances, the reduction of the offal’s pollution and the quality improving of coloring leather.
In order to design these systems we had to put in mind the following aspects: monitoring module’s parameters UFS; monitoring ultrasonic generator – UG; displaying the process values UFS on the display of system control ECC and communication them in GSM; control and command by GSM of hole finishing ensemble based on ultrasonic processes; taking the technological options by the utilize on a control monitor (keyboard and/or sensitive monitor); Making the process data base on a record process by correlation the entering and finishing parameters depending on the time functioning USF module; processing the system ESS information in order to assure the necessary feed-back for the implementation of the best processing algorithms.
Technical solutions of the system assure: · Interconnecting architecture for optimum information exchange; · Designing the algorithms for dedicated software for controlling the dynamic of the working elements of textile machines; · Using energy from unconventional sources; · Textile processes monitoring using the data communication systems based on GSM/Internet networks; · Designing based on versatility criteria for the three intelligent mechatronics systems STH for textile machines and NTS and DRC complementary systems.
All these implications contribute to the reduction of unproductive time.
Comer, Physical data acquisition for digital processing: components, parameters, and specifications, Prentice Hall: Englewood Cliffs, New Jersey, 1992
In order to design these systems we had to put in mind the following aspects: monitoring module’s parameters UFS; monitoring ultrasonic generator – UG; displaying the process values UFS on the display of system control ECC and communication them in GSM; control and command by GSM of hole finishing ensemble based on ultrasonic processes; taking the technological options by the utilize on a control monitor (keyboard and/or sensitive monitor); Making the process data base on a record process by correlation the entering and finishing parameters depending on the time functioning USF module; processing the system ESS information in order to assure the necessary feed-back for the implementation of the best processing algorithms.
Technical solutions of the system assure: · Interconnecting architecture for optimum information exchange; · Designing the algorithms for dedicated software for controlling the dynamic of the working elements of textile machines; · Using energy from unconventional sources; · Textile processes monitoring using the data communication systems based on GSM/Internet networks; · Designing based on versatility criteria for the three intelligent mechatronics systems STH for textile machines and NTS and DRC complementary systems.
All these implications contribute to the reduction of unproductive time.
Comer, Physical data acquisition for digital processing: components, parameters, and specifications, Prentice Hall: Englewood Cliffs, New Jersey, 1992
Online since: September 2017
Authors: Milan Dermek
This can be made impossible by major losses in hose line, those lead to the decrease of required overpressure in front of a nozzle, and thereby to reduction of range distance and reduction of the effectivity of extinguishing.
Data have been written into data files using datalogger Almemo 2590, which were processed by a computer into the desired shape.
The difference between the old value of the simplified calculation and the measured data from the experiment is expressed in % relative to the old values in Figure 5.
Significant reduction of pressure losses results from the given picture, which affects the possibility of water transfer using hose line to longer distance.
Data have been written into data files using datalogger Almemo 2590, which were processed by a computer into the desired shape.
The difference between the old value of the simplified calculation and the measured data from the experiment is expressed in % relative to the old values in Figure 5.
Significant reduction of pressure losses results from the given picture, which affects the possibility of water transfer using hose line to longer distance.
Online since: January 2015
Authors: Artem Korsun, Volodymyr I. Korsun
Thus, according to the data [3, 8, 16, 18, 20], the level of precompression h = 0.2¸0.3 at the first short-term heating up to 200°C increases the prism strength of normal heavy concrete by 14¸20 %, at the long-term isothermal heating – by 8¸22 % compared with the strength of previously unloaded concrete.
Experimental data: [16]: +20°С – ; [18]: +90°С – , ; +150°С – , ; [3]: +60°С – , ; +120°С – , ; +200°С – , .
Further increase of precompression to the level of h = (0.4¸0.5) leads to the stable reduction of this characteristic (Fig. 1).
For the case of long-term precompression of concrete at normal temperature a significant reduction of concrete mechanical properties is more characteristic at elevated temperatures than compression directly before heating [20].
The values of the concrete properties which are calculated according to the expressions (1) ¸ (13) correspond to the experimental data (Fig. 1).
Experimental data: [16]: +20°С – ; [18]: +90°С – , ; +150°С – , ; [3]: +60°С – , ; +120°С – , ; +200°С – , .
Further increase of precompression to the level of h = (0.4¸0.5) leads to the stable reduction of this characteristic (Fig. 1).
For the case of long-term precompression of concrete at normal temperature a significant reduction of concrete mechanical properties is more characteristic at elevated temperatures than compression directly before heating [20].
The values of the concrete properties which are calculated according to the expressions (1) ¸ (13) correspond to the experimental data (Fig. 1).
Online since: April 2018
Authors: Kazuhiko Kitamura, Nobukazu Hayashi, Keisuke Goto, Kazuhito Asai
The reduction in cross-sectional area is 50%.
In stage 1, the data such as stress-strain curves, strain rate, temperature, mechanical and thermal properties, and coefficients of friction mp and mc are input to the FEM calculations.
This indicates an agreement within ±10%, wherefore all data are transferred from the 1st stage to the 2nd stage. 2.
The data are transferred from the 2nd stage to the 3rd stage. 3.
The reduction in friction is probably due to the increasing temperature melting the soap lubricant.
In stage 1, the data such as stress-strain curves, strain rate, temperature, mechanical and thermal properties, and coefficients of friction mp and mc are input to the FEM calculations.
This indicates an agreement within ±10%, wherefore all data are transferred from the 1st stage to the 2nd stage. 2.
The data are transferred from the 2nd stage to the 3rd stage. 3.
The reduction in friction is probably due to the increasing temperature melting the soap lubricant.
Online since: July 2014
Authors: Yan Gang Jia, San Fu Su, Yu Qiang Han, Hai Yang Liu, Yi Liu, Shi Lei Ding, Xiao Song Zhang
The research and application of optimizing the system efficiency will drive the development of building integrated PV and promote building energy efficiency and emission reduction.
For building integrated PV, the industry generally as shown in Fig. 6, to estimate the different orientation of the PV efficiency .In local best inclination towards 100% as standard, the different direction of PV phalanx efficiency will have different degree of reduction.
In order to get a more scientific and detailed component installation area, according to nearly 15 years of meteorological data in the Nanjing area, combined with the conditions of the above theory and the actual irradiation using PV system design and analysis software, in the shadow analysis model on the basis of the above, for each area of the solar radiation conducted a more detailed analysis of the radiation.
For building integrated PV, the industry generally as shown in Fig. 6, to estimate the different orientation of the PV efficiency .In local best inclination towards 100% as standard, the different direction of PV phalanx efficiency will have different degree of reduction.
In order to get a more scientific and detailed component installation area, according to nearly 15 years of meteorological data in the Nanjing area, combined with the conditions of the above theory and the actual irradiation using PV system design and analysis software, in the shadow analysis model on the basis of the above, for each area of the solar radiation conducted a more detailed analysis of the radiation.
Online since: April 2014
Authors: P.N. Preeta, A.A. Faieza, Z. Norzima, M.Y. Rosnah
The third suggestion of cross checking the data by the immediate supervisor is also being implemented.
Control In the control phase, the following year’s data is collected.
All data indicates 100% compliance to ASME standards.
As a comparison the data before the improvement initiative is compared to after improvement initiative.
The corresponding data is tabulated in the Figure 2 as below.
Control In the control phase, the following year’s data is collected.
All data indicates 100% compliance to ASME standards.
As a comparison the data before the improvement initiative is compared to after improvement initiative.
The corresponding data is tabulated in the Figure 2 as below.
Online since: October 2014
Authors: Li Wei Huang, Mi Mi Wang, Hui Qin Chen, Li Zhen Zhang, Ying Zheng
And the data will be realized multi-hop transmission.
According to the key’s information, the terminal device send data through invoking function from ZigBee protocol stack.
An AF_INCOMING_MSG_CMD OSAL handles the data received in coordinator device.
The coordinator node handles the data packet through the AF_INCOMING_MSG_CMD OSAL.
If the timer starts, the pin’s edge signal(rising edge, falling edge) will trigger the counter to count and store the data in register accordingly.
According to the key’s information, the terminal device send data through invoking function from ZigBee protocol stack.
An AF_INCOMING_MSG_CMD OSAL handles the data received in coordinator device.
The coordinator node handles the data packet through the AF_INCOMING_MSG_CMD OSAL.
If the timer starts, the pin’s edge signal(rising edge, falling edge) will trigger the counter to count and store the data in register accordingly.
Online since: September 2013
Authors: Kiatfa Tangchaichit, Jarupol Suriyawanakul
Regularly LES is used to capture instantaneous data and send them to the finite element method (FEM) for a vibration calculation of a head stack assembly (HSA).
The researchers use convergence information of steady k-e for initial data to reduce the calculation time [1,2,3].
Flow-induced vibration reduction in HDD by using a spoiler.
Flow-Induced Vibration Reduction for Hard Disk Drive with a Window Spoiler.
The researchers use convergence information of steady k-e for initial data to reduce the calculation time [1,2,3].
Flow-induced vibration reduction in HDD by using a spoiler.
Flow-Induced Vibration Reduction for Hard Disk Drive with a Window Spoiler.