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Online since: November 2012
Authors: Pichet Limsuwan, Alonggot Limcharoen, Chupong Pakpum, Nirun Witit-Anun, Surasing Chaiyakun
Introduction
Nowadays, there are intensive researches in Heat-assisted magnetic recording (HAMR) in data storage industry.
The technology to increase data storage densities exceeding 1 Tb/in2 requires a recorded mark size of ~25 nm.
The medium then rapidly cools down to the room temperature where its large anisotropy ensures thermal stability of the data.
The simple designed for a whole system fabrication will affect to the cost reduction.
It is expected that this design is able to implement in the data storage industry.
The technology to increase data storage densities exceeding 1 Tb/in2 requires a recorded mark size of ~25 nm.
The medium then rapidly cools down to the room temperature where its large anisotropy ensures thermal stability of the data.
The simple designed for a whole system fabrication will affect to the cost reduction.
It is expected that this design is able to implement in the data storage industry.
Online since: January 2014
Authors: Ihor Dzioba, Andrzej Neimitz, Tadeusz Pala
The determination of the MC formula for high-strength steels requires experimental data received in the temperature range from −20°C to −150°C, while the traditional MC requires data from the temperature range ±50°C [10].
The MC computed according to [7] does not properly represent the experimental data.
Ductile-brittle fracture surface at -50 OC (a) and at -100 OC (b) In Figs 6, all experimental data obtained both for specimens made of plates with different original thicknesses (triangulars) and for specimens after thickness reduction (circles) are shown along with the standard (Fig. 6a) and a new version of the MC (Eq. 3) (Fig. 6b).
Wallin, Master Curve Analysis of Ductile to Brittle Transition Region Fracture Toughness Round Robin Data (The Euro Fracture Toughness Curve), VTT Technical Document 367.58P, Espoo, Finland,1998
Wallin, Recommendations for the Application of Fracture Toughness Data for Structural Integrity Assessments.
The MC computed according to [7] does not properly represent the experimental data.
Ductile-brittle fracture surface at -50 OC (a) and at -100 OC (b) In Figs 6, all experimental data obtained both for specimens made of plates with different original thicknesses (triangulars) and for specimens after thickness reduction (circles) are shown along with the standard (Fig. 6a) and a new version of the MC (Eq. 3) (Fig. 6b).
Wallin, Master Curve Analysis of Ductile to Brittle Transition Region Fracture Toughness Round Robin Data (The Euro Fracture Toughness Curve), VTT Technical Document 367.58P, Espoo, Finland,1998
Wallin, Recommendations for the Application of Fracture Toughness Data for Structural Integrity Assessments.
Online since: February 2011
Authors: Ting Li, Xiao Ming Li, Jian Hui Wu, Guo Li Wang
It is necessary to consider the suitable statistical methods for cost data characterri- stics.
(1)BP net training regulations, the verification collection and test collection's determination divides into the data set the training regulations (60%), confirmation collection (20%), test collection (20%), prevents the model fitting.
Withdraws from his system in primary data after reorganization, carries on the analysis with the Excel2003 database to compile.
But the traditional t analysis often has each kind of supposition condition request to the data distribution, when does not satisfy the request, possibly (how can make the variable transformation to the primary data including to cause misalignment relations transformation for linear relationship), but which one kind of functional generation in fact chooses is very difficult, possibly must use the complex statistical method.
But the BP net takes a misalignment mathematical model, has the superiority in these aspects, it is good at dealing with the complex fuzzy mapping relations especially, does not need to know the data the distributed form.
(1)BP net training regulations, the verification collection and test collection's determination divides into the data set the training regulations (60%), confirmation collection (20%), test collection (20%), prevents the model fitting.
Withdraws from his system in primary data after reorganization, carries on the analysis with the Excel2003 database to compile.
But the traditional t analysis often has each kind of supposition condition request to the data distribution, when does not satisfy the request, possibly (how can make the variable transformation to the primary data including to cause misalignment relations transformation for linear relationship), but which one kind of functional generation in fact chooses is very difficult, possibly must use the complex statistical method.
But the BP net takes a misalignment mathematical model, has the superiority in these aspects, it is good at dealing with the complex fuzzy mapping relations especially, does not need to know the data the distributed form.
Online since: November 2014
Authors: Wen Yang, Li Liu
(2) Laid the empty container on the stands, read and recorded the displaying data(G1) of electronic scale
(4) Laid the container which filled with fresh concrete on the stands at a uniformly speed in 5 seconds (we could also set some effects such like keeping still or vibrating for a period of time if necessary before this step) and record the electronic scale’s displaying data (Gx) soon
Fig.2 The ready device (4) Superplasticizer and viscosity modifier: The polycarboxylate superplasticizer was produced by China Construction Ready Mixed Concrete Corporation, its solid content was 10% and water reduction was 13.3%.
The test data and notes were listed in Table 3.
According to the data and notes of C30-2, C30-6 and C40-4, segregation happened and the concrete would have poor homogeneity and workability if its Cv≥1.10, oppositely, the other samples showed the concrete would have preferable homogeneity if the difference between Cv and 1 less than 0.10.
(4) Laid the container which filled with fresh concrete on the stands at a uniformly speed in 5 seconds (we could also set some effects such like keeping still or vibrating for a period of time if necessary before this step) and record the electronic scale’s displaying data (Gx) soon
Fig.2 The ready device (4) Superplasticizer and viscosity modifier: The polycarboxylate superplasticizer was produced by China Construction Ready Mixed Concrete Corporation, its solid content was 10% and water reduction was 13.3%.
The test data and notes were listed in Table 3.
According to the data and notes of C30-2, C30-6 and C40-4, segregation happened and the concrete would have poor homogeneity and workability if its Cv≥1.10, oppositely, the other samples showed the concrete would have preferable homogeneity if the difference between Cv and 1 less than 0.10.
Online since: November 2014
Authors: Fei Fei Xiang, Zhong Ke Xiang, Wen Ming Cheng
When the car ahead suddenly brake, the existing automobile brake signals using a single brake lights, according to basically can only remind drivers behind the vehicle ahead has brake action, don't know how much the braking force size and reduction rate slowing down that cannot judge the front vehicle brake light and heavy, slow, urgent situation.
Power down mode, save RAM data, the clock oscillation stop, stop chip inside other functions at the same time.
The design system of single chip microcomputer not noly control the quenched state of brake light, but also show the braking force by digital display used to observe the corresponding relationship between size and high power brake lamp. 3 Micro Control unit System software is mainly composed of the main program, data acquisition and A/D conversion subroutine and display subroutine, The interrupt subroutine, etc, using C language programming.
The main program is used to complete the hardware initialization, call subroutine and data processing function, the flow chart shown in figure 5.The corresponding analog signal sampling and conversion in data acquisition and A/D conversion subroutine, and entered into the main program.
start Power on reset Data Collection A/D conversion Data Processing signal display Figure 5 Main program flow chart Conclusions Driving security relationship with the happiness of every family and the harmony of the whole society.
Power down mode, save RAM data, the clock oscillation stop, stop chip inside other functions at the same time.
The design system of single chip microcomputer not noly control the quenched state of brake light, but also show the braking force by digital display used to observe the corresponding relationship between size and high power brake lamp. 3 Micro Control unit System software is mainly composed of the main program, data acquisition and A/D conversion subroutine and display subroutine, The interrupt subroutine, etc, using C language programming.
The main program is used to complete the hardware initialization, call subroutine and data processing function, the flow chart shown in figure 5.The corresponding analog signal sampling and conversion in data acquisition and A/D conversion subroutine, and entered into the main program.
start Power on reset Data Collection A/D conversion Data Processing signal display Figure 5 Main program flow chart Conclusions Driving security relationship with the happiness of every family and the harmony of the whole society.
Online since: August 2020
Authors: Loeslakkhana Sriklang, Siam Thongnak, Tanongsak Yingnakorn, Sakhob Khumkoa
Finally, the CCT diagram will be developed by combination of phase transformation data of different cooling test.
The data from TTT diagram will be used in calculating term y1 and y4 by JMatPro software.
The data from TTT diagram will be used to calculate in this equation, term k and n are calculated from the diagram as well.
Then, critical point from TTT diagram is input data to develop the CCT diagram that construct in DEFORM 2D-Post mode software
The input data of finite element software are the same as input in Deformation Dilatometer.
The data from TTT diagram will be used in calculating term y1 and y4 by JMatPro software.
The data from TTT diagram will be used to calculate in this equation, term k and n are calculated from the diagram as well.
Then, critical point from TTT diagram is input data to develop the CCT diagram that construct in DEFORM 2D-Post mode software
The input data of finite element software are the same as input in Deformation Dilatometer.
Online since: May 2025
Authors: Jaya Christian, Babu L. Sunith, Bangarpet Shankar Sridhar
Time plot, a Data Acquisition Card (DAC) of NI 6210 from National Instruments is utilized, with time measurements recorded in milliseconds.
Data collection was conducted at a high sampling rate of 50kHz, facilitated by an optical sensor responsible for measuring the experimental velocity of the impactor upon striking the laminate.
This instrumentation allowed for precise measurement and understanding of the forces involved in the Low-Velocity Impact tests, contributing valuable insights to the research. 3.1 Force Vs Time In a low velocity impact test, the primary data is the force vs time data, it is from this data the analysis is carried out such as force vs displacement, velocity vs time, absorbed energy vs time.
The force vs time data is presented in Fig 4.
Analyzing the data from Table 2, we observe a pronounced difference in contact durations for glass and Kevlar, with glass exhibiting a lengthier span.
Data collection was conducted at a high sampling rate of 50kHz, facilitated by an optical sensor responsible for measuring the experimental velocity of the impactor upon striking the laminate.
This instrumentation allowed for precise measurement and understanding of the forces involved in the Low-Velocity Impact tests, contributing valuable insights to the research. 3.1 Force Vs Time In a low velocity impact test, the primary data is the force vs time data, it is from this data the analysis is carried out such as force vs displacement, velocity vs time, absorbed energy vs time.
The force vs time data is presented in Fig 4.
Analyzing the data from Table 2, we observe a pronounced difference in contact durations for glass and Kevlar, with glass exhibiting a lengthier span.
Online since: August 2013
Authors: Li Hui Tian, Xian Zhang Ling, Juan Wan, Guang Yi Sun, Zi Yu Wang
The principal objective of this study is to make use of medium and strong motion data from instrumented shaking table tests to evaluate the effects of kinematic soil-structure interaction on foundation input motion (FIM).
Ishii et al (1984) used the observed data investigated the kinematic interaction of soil-structure system.
Shaking table model tests were performed using MTS shaking table facility at the state key laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China.
Measurement of accelerations in the soil away from the foundation was unaffected by the presence of the piles and can be considered free field data.
Kinematic Interaction of Soil-Structure System based on Observed Data: Proc. 8th World Conf.
Ishii et al (1984) used the observed data investigated the kinematic interaction of soil-structure system.
Shaking table model tests were performed using MTS shaking table facility at the state key laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China.
Measurement of accelerations in the soil away from the foundation was unaffected by the presence of the piles and can be considered free field data.
Kinematic Interaction of Soil-Structure System based on Observed Data: Proc. 8th World Conf.
Online since: March 2009
Authors: Giuseppe Pellegrini, Giancarlo Maccarini, Gianluca Danilo D'Urso
Several tests were carried
out by varying bending conditions and collecting load-displacement data.
In addition, a study based on foam density showed a remarkable data scatter that can be considered as a characteristic of the state of the art in foamed panels manufacturing (in terms of process control and product variability).
Several tests were carried out by varying bending geometry and collecting data about the deformed geometry and about the punch load-displacement.
When observing Fig.4-F, evaluated from load-displacement data, some remarks can be made.
Material flow stress data were selected from Deform database.
In addition, a study based on foam density showed a remarkable data scatter that can be considered as a characteristic of the state of the art in foamed panels manufacturing (in terms of process control and product variability).
Several tests were carried out by varying bending geometry and collecting data about the deformed geometry and about the punch load-displacement.
When observing Fig.4-F, evaluated from load-displacement data, some remarks can be made.
Material flow stress data were selected from Deform database.
Online since: October 2014
Authors: Jong Jo Lee, Yong Ki Cho, Weon Jin Song
PV module cooling system performance test
The prototype data was measured in the following conditions for its performance test.
Performance measurement] Measurement date & time Oct. 28,29,30,31, and Nov. 1, 2013 (5 days) - 9 hours a day (9 am~ 6 pm) Measured elements - Internal/external temperatures of PV collector - Insolation - Power use & power output - Power generation efficiency Measurement device - Insolation meter, temperature sensor, wattmeter, inverter Measurement method - Auto temperature measurement by a control system - Power measurement and generating efficiency calculation - Real-time PC recording of power, current and voltaic data from PV generator through inverter and PLC Cooling system operation - Generating efficiency, internal temperature, etc. are measured at the same time both before and after the cooling system operation.
[Figure 8] and [Figure 9] are data on daily power generation amount of the prototype module herein.
Daily power generation of PV cooling system (Comp, Fan operated)] As a result of comparing those data, under Comp and Fan non operation, its daily power generation was 2,505W and under their operation, the amount was 2,638W, [Figure 10] and [Figure 11] are the graphs of comparing the measurement data.
If non-cooling system and cooling system generation amounts are compared to analyze their system efficiency, temperature, economic data, the necessity and economic favorability of the cooling system are expected to emerge more clearly. 2) Power generation and temperature reduction data according to the kinds of refrigerant gas inside a cooling system need to be analyzed in experiments to select an optimal refrigerant material for the system developed herein. 3) In addition, by applying a control system that manages refrigerant gas injection according to temperature rise, a more efficient and economic system can be established. 4) If a cooling system is used, PV module cell temperature could be lowered by 3~5℃ and it could be even cooler depending upon chilling time. 5) The daily power generation amounts were analyzed based on the developed PV module herein and power production was found to increase by about 130W/h with the cooling system in place.
Performance measurement] Measurement date & time Oct. 28,29,30,31, and Nov. 1, 2013 (5 days) - 9 hours a day (9 am~ 6 pm) Measured elements - Internal/external temperatures of PV collector - Insolation - Power use & power output - Power generation efficiency Measurement device - Insolation meter, temperature sensor, wattmeter, inverter Measurement method - Auto temperature measurement by a control system - Power measurement and generating efficiency calculation - Real-time PC recording of power, current and voltaic data from PV generator through inverter and PLC Cooling system operation - Generating efficiency, internal temperature, etc. are measured at the same time both before and after the cooling system operation.
[Figure 8] and [Figure 9] are data on daily power generation amount of the prototype module herein.
Daily power generation of PV cooling system (Comp, Fan operated)] As a result of comparing those data, under Comp and Fan non operation, its daily power generation was 2,505W and under their operation, the amount was 2,638W, [Figure 10] and [Figure 11] are the graphs of comparing the measurement data.
If non-cooling system and cooling system generation amounts are compared to analyze their system efficiency, temperature, economic data, the necessity and economic favorability of the cooling system are expected to emerge more clearly. 2) Power generation and temperature reduction data according to the kinds of refrigerant gas inside a cooling system need to be analyzed in experiments to select an optimal refrigerant material for the system developed herein. 3) In addition, by applying a control system that manages refrigerant gas injection according to temperature rise, a more efficient and economic system can be established. 4) If a cooling system is used, PV module cell temperature could be lowered by 3~5℃ and it could be even cooler depending upon chilling time. 5) The daily power generation amounts were analyzed based on the developed PV module herein and power production was found to increase by about 130W/h with the cooling system in place.