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Online since: March 2017
Authors: Nicuşor Baroiu, Virgil Gabriel Teodor, Florin Iftode
The paper describes the method that can be used to monitoring of a water feeding system of a civil building and its subsystems, using a graphic interface of a soft-ware pack – SCADA (Supervisory Control and data Acquisition), WinCC Flexible.
In the paper, also is analysed the situation in which three centrifugal pumps are utilized as execution elements, a pressure sensor – to measure the pressure of the water feeding system of the consumer, three sensors that detect the presence of water in each well and a Siemens programmable automaton, from the SIMATIC S7-300 series, which controls the process and a PC for the acquisition of data and for monitoring.
It has been used a pressure sensor for pressure measurement to consumer, 3 water sensors presence in each well, three centrifugal pumps as actuators, PLC Siemens S7-300 series for process management and a PC for data acquisition and monitoring.
The value 2 bars controls the reduction of the rotational speed of pump 3 from 652,44 rpm, to 326,37 rpm representing 33% of the capacity and the rest of the pumps work at 100 % of their capacity.
Pump 3 - shut down Conclusions By automating and monitoring such a pumping system, substantial reductions of costs can be obtained for the following: spare parts – reduced wear – the working tension does not run unless it is necessary; electric power – depending on the water consumption, one, two or all three pumps work; the consumption of water is rationalized; the work conditions of the staff that operates the pumps are improved.
In the paper, also is analysed the situation in which three centrifugal pumps are utilized as execution elements, a pressure sensor – to measure the pressure of the water feeding system of the consumer, three sensors that detect the presence of water in each well and a Siemens programmable automaton, from the SIMATIC S7-300 series, which controls the process and a PC for the acquisition of data and for monitoring.
It has been used a pressure sensor for pressure measurement to consumer, 3 water sensors presence in each well, three centrifugal pumps as actuators, PLC Siemens S7-300 series for process management and a PC for data acquisition and monitoring.
The value 2 bars controls the reduction of the rotational speed of pump 3 from 652,44 rpm, to 326,37 rpm representing 33% of the capacity and the rest of the pumps work at 100 % of their capacity.
Pump 3 - shut down Conclusions By automating and monitoring such a pumping system, substantial reductions of costs can be obtained for the following: spare parts – reduced wear – the working tension does not run unless it is necessary; electric power – depending on the water consumption, one, two or all three pumps work; the consumption of water is rationalized; the work conditions of the staff that operates the pumps are improved.
Online since: September 2014
Authors: Ling Ji
In switch input and output, the use of the instruction redundancy methods to achieve the switch signal input and output filtering; in data collection, based on the hardware anti-interference taken arithmetic average filtering method, in order to strengthen its anti-jamming capability.
Summarizes the experimental phenomena encountered, the effect of interference on the work of the computer system can be divided into three cases, the first one is the data collection errors; second is control state failure; third, and most severe cases, can cause change the value of the program counter.
For interference may cause errors in the case of data acquisition, during the collection, the collected data can be low-pass filtering, as shown in equation (1) : (1) In equation (1) x is a digital filter input signal; y is a digitally filtered output signal; M is average filter points
Input data information in the interface are detected repeatedly, if the test results were in agreement, the input signal is true; if adjacent detected inconsistent, or more consistent test results, the input signal is false.
Reduction in Conducted EMI Noises of a Switching Power Supply after Thermal Management Design.
Summarizes the experimental phenomena encountered, the effect of interference on the work of the computer system can be divided into three cases, the first one is the data collection errors; second is control state failure; third, and most severe cases, can cause change the value of the program counter.
For interference may cause errors in the case of data acquisition, during the collection, the collected data can be low-pass filtering, as shown in equation (1) : (1) In equation (1) x is a digital filter input signal; y is a digitally filtered output signal; M is average filter points
Input data information in the interface are detected repeatedly, if the test results were in agreement, the input signal is true; if adjacent detected inconsistent, or more consistent test results, the input signal is false.
Reduction in Conducted EMI Noises of a Switching Power Supply after Thermal Management Design.
Online since: July 2014
Authors: Hao Ling Wu, Zhen Zhou Yuan, Guang Yuan Nie
With the survey data, this paper fits flow-density curves and establishes corresponding function models.
The data was collected during the morning rush hour from 7 a.m. to 9 a.m.
The pedestrian flow and density were calculated with the survey data.
Based on the pedestrian flow and density data, the flow-density scatterplot was drawn to show the traffic conditions of upward stairway in urban rail transit hub (Figure 1).
Disscussion on Traffic Capacity Reduction Factor of the Escalators and Stairs in Code for Metro Design.
The data was collected during the morning rush hour from 7 a.m. to 9 a.m.
The pedestrian flow and density were calculated with the survey data.
Based on the pedestrian flow and density data, the flow-density scatterplot was drawn to show the traffic conditions of upward stairway in urban rail transit hub (Figure 1).
Disscussion on Traffic Capacity Reduction Factor of the Escalators and Stairs in Code for Metro Design.
Online since: August 2012
Authors: Deng Yue Sun, Jing Li, Feng Chao Liu, Ming Zhang, Fu Cheng Zhang
However, it was very difficult to obtain high strain rate data (≥ 104 s-1) by experimental techniques.
Base on experimental data, a modified Johnson-Cook equation for Hadfield steel under various strain rate was fitted.
A 3D linear reduction integration continuum element with eight nodes (C3D8R) was selected.
A constructive model and data for metal subjected to large strains, high strain rates and high temperature.
Base on experimental data, a modified Johnson-Cook equation for Hadfield steel under various strain rate was fitted.
A 3D linear reduction integration continuum element with eight nodes (C3D8R) was selected.
A constructive model and data for metal subjected to large strains, high strain rates and high temperature.
Online since: December 2013
Authors: Ting Ting Yang, Tao Shi, Jing He, Guo Zheng Yao
Soil microbial plays a very important role in the grassland ecosystems, but measured data is very lack.
In this paper, based on the ground survey data microbial dynamic changes in growing seasons of Desert steppe in 2012 was estimated.
Hope it can provide reference data for rational utilization of the region.
The worsening of the vegetation structure, soil physical and chemical properties reduce nutrients of microbial in the soil environment, which may lead to a reduction in the number of soil microbial breeding.
In this paper, based on the ground survey data microbial dynamic changes in growing seasons of Desert steppe in 2012 was estimated.
Hope it can provide reference data for rational utilization of the region.
The worsening of the vegetation structure, soil physical and chemical properties reduce nutrients of microbial in the soil environment, which may lead to a reduction in the number of soil microbial breeding.
Online since: September 2024
Authors: Tatjana Charkova, Vytautas Taurelė
The paper provides a detailed explanation of the synthesis, analysis, and application of the silver core-tin oxide shell nanoparticles based on data from UV-Vis, HR-TEM, and SHINERS.
Optimization data of SnO2 formation.
However, additional HR-TEM data and the distribution histogram of particle size revealed that produced Ag@SnO2 NPs were mostly 80 ± 5 nm nanospheres coated with 8 – 12 nm SnO2 (Fig. 2 B, C).
UV-Vis spectra of Ag@SnO2 NPs in (A) acidic (pH = 5), (B) neutral (pH = 7), and (C) basic (pH = 9) media; time dependence of average of the absorption maximum (data from three experiments) in (D) acidic, (E) neutral, and (F) basic media.
UV-Vis spectra of Ag@SnO2 NPs in (A) acetone, and (B) ethanol; time dependence of average of the absorption maximum (data from three experiments) in (C) acetone, and (D) ethanol.
Optimization data of SnO2 formation.
However, additional HR-TEM data and the distribution histogram of particle size revealed that produced Ag@SnO2 NPs were mostly 80 ± 5 nm nanospheres coated with 8 – 12 nm SnO2 (Fig. 2 B, C).
UV-Vis spectra of Ag@SnO2 NPs in (A) acidic (pH = 5), (B) neutral (pH = 7), and (C) basic (pH = 9) media; time dependence of average of the absorption maximum (data from three experiments) in (D) acidic, (E) neutral, and (F) basic media.
UV-Vis spectra of Ag@SnO2 NPs in (A) acetone, and (B) ethanol; time dependence of average of the absorption maximum (data from three experiments) in (C) acetone, and (D) ethanol.
Online since: June 2025
Authors: Chaira Chaira, Meidia Refiyanni, Akhyar Akhyar, M. Isya
The data used for this exploration included information on accessibility, traffic volume, road capacity, and road pavement conditions.
Based on 2021year data, the condition of road infrastructure varied from good to seriously damaged.
Accessibility Index Data were processed to determine accessibility levels between zones, the connectivity index, movement potential, and the availability of road infrastructure [9,15,16].
However, when traveling from one location to another using a specific mode, data such as travel route, distance, time, and traffic conditions are achievable.
Disaster Risk Reduction. , p. 104093, Nov. 2023, doi: 10.1016/j.ijdrr.2023.104093
Based on 2021year data, the condition of road infrastructure varied from good to seriously damaged.
Accessibility Index Data were processed to determine accessibility levels between zones, the connectivity index, movement potential, and the availability of road infrastructure [9,15,16].
However, when traveling from one location to another using a specific mode, data such as travel route, distance, time, and traffic conditions are achievable.
Disaster Risk Reduction. , p. 104093, Nov. 2023, doi: 10.1016/j.ijdrr.2023.104093
Online since: October 2012
Authors: Zhou Dao Lu, Jiang Tao Yu, Min Xia
In the first module, the beams, columns and slabs in the frame structure are modeled by the finite element software SAP2000, in which the model data are read into ABAQUS depending on the program written in this paper.
In the second module, the position, heated faces and duration of members suffering fire in the concrete frame can be specified according to the actual inspection data of members after fire.
In the pre-processing stage, a mass of original data should be inputted by the user that is to be read by calculation stage so as to calculate the mechanical properties of the concrete frame under different working conditions.
After the finite element calculation, plenty of data are produced, such as displacements, stresses and strains at the element nodes, etc.
Shanghai: Institute of Structural Engineering and Disaster Reduction of Tongji University, 1989,3
In the second module, the position, heated faces and duration of members suffering fire in the concrete frame can be specified according to the actual inspection data of members after fire.
In the pre-processing stage, a mass of original data should be inputted by the user that is to be read by calculation stage so as to calculate the mechanical properties of the concrete frame under different working conditions.
After the finite element calculation, plenty of data are produced, such as displacements, stresses and strains at the element nodes, etc.
Shanghai: Institute of Structural Engineering and Disaster Reduction of Tongji University, 1989,3
Online since: September 2012
Authors: Yeshaiahu Fainman, V. Lomakin, Q. Gu, J. Lee, M. Khajavikhan, B. Slutsky, D. Tan, S. Zamek, O. Bondarenko, A. Simic, A. Mizrahi, M. Nezhad
The same data set is shown as a log–log plot (bottom inset, red symbols) together with the slopes for the PL, ASE and lasing regions.
The blue curve is offset from the red by a constant amount (0.102 RIU), which was chosen for best fit to the lasing data.
The index reduction is consistent with the estimated free-carrier effects.
The same data set is shown in a log-log plot (Fig. 7a, red inset graph), with the slopes of different regions of operation indicated on the plot.
For the light-light curve, our rate equation model with β=0.95 (solid line) gives the best fit to the experimental data (circles).
The blue curve is offset from the red by a constant amount (0.102 RIU), which was chosen for best fit to the lasing data.
The index reduction is consistent with the estimated free-carrier effects.
The same data set is shown in a log-log plot (Fig. 7a, red inset graph), with the slopes of different regions of operation indicated on the plot.
For the light-light curve, our rate equation model with β=0.95 (solid line) gives the best fit to the experimental data (circles).
Online since: June 2023
Authors: Christian Schleich, Tibor Grasser, Michael Waltl, Aleksandr Vasilev, Dominic Waldhoer, Maximilian Wolfgang Feil
Therefore, the defect parameters of a two-state non-radiative
multi-phonon model to capture the charge trapping kinetics of oxide and interface defects is calibrated
within our simulation framework Comphy by data extracted from measure-stress-measure (MSM) sequences.
A large data set measured on a commercially available DMOSFET [6] consisting of longterm DC and short-term AC MSM sequences is used to extract defect parameters by employing an efficient, effective single defect decomposition (ESiD) algorithm [7].
MSM data (circles) is interpolated by the Comphy simulation (lines) using the ESiD method for optimized defect parameter extraction (right).
Figure 1 shows the resulting long-term DC ∆Vth data for standard operating conditions and accelerated VG and T stress conditions.
Summary In summary, our calibrated simulations predict an on-state loss reduction of about 30 % at bipolar VG operation compared to using unipolar VG gate-drive signals.
A large data set measured on a commercially available DMOSFET [6] consisting of longterm DC and short-term AC MSM sequences is used to extract defect parameters by employing an efficient, effective single defect decomposition (ESiD) algorithm [7].
MSM data (circles) is interpolated by the Comphy simulation (lines) using the ESiD method for optimized defect parameter extraction (right).
Figure 1 shows the resulting long-term DC ∆Vth data for standard operating conditions and accelerated VG and T stress conditions.
Summary In summary, our calibrated simulations predict an on-state loss reduction of about 30 % at bipolar VG operation compared to using unipolar VG gate-drive signals.