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Online since: June 2010
Authors: Soon Jong Yoon, So Young Park, Seung Cheol Baek, Hyo Jin Kim, Hoon Choi
Table 2 The average of rebound hardness (R) in each measuring point Measuring point No. 1 No. 2 No. 3 No. 4 No. 5 Average of R 58.5 60.8 50 56.7 61.3 ' 2 9.37 (0.987) (1.3 109)( / ) t ckf R t kgf cm = ⋅ ⋅ + − (2) Strength Reduction Factor.
The equation for the coefficient e3 considering the impact of changes in strength reduction factor recommended by ACI 318-02 is given as Eq. 3 [3].
Table 3 The strength reduction factor (φ) by year year 1995 1999 2002 2005 Strength reduction factor (φ) 0.70 0.70 0.65 0.65 3 07 /e φ φ= (3) 07φ is the strength reduction factor in 2007 and φ is the strength reduction factor by year.
In the safety evaluation, 29.43MPa of the compressive strength and 4.20MPa of the tensile strength are adopted from the design data [4].
Online since: June 2014
Authors: Jiang Li, Yuan Tao Sun, Mei Yu Shi, Rong Fu Zhu
In Fig.2, data measured for B10 are shown.
Compared with B0 blended fuel in Fig.1, CO emission after 100s was reduced between 5% and 10%, but the reduction of HC emission was not observed significantly.
The HC and CO reduction of B10 performed was not observed much significantly from the B0 (gasoline), while B30 clearly reduced HC and CO emissions.
In Fig.4 and Fig.5, at 100 s, for B30, the percentage of the reduction of HC and CO was about 15% and 20% respectively.
Fuel conservation and emission reduction through novel waste heat recovery for internal combustion engines: Fuel Vol.102(2012), p.247–255
Online since: August 2013
Authors: Yong Feng Xu, Wei Tong Guo, Teng Fei He
(see table 2.2) Table 2 The Failure Load Number KWL1-1 KWL1-2 KWL2-1 KWL2-2 Test Specimen(KN) 76.5 79.2 136.1 132.6 78.4 81.6 152.7 151.9 Average Value(KN) 77.85 131.85 80.0 152.3 According to data in table 2.2, compare KWL1-1with KWL1-2 and KWL2-1with KWL2-2, it showed that when the amount of FRP bars added, the bearing capacity increase obviously, but compare KWL1-1with KWL2-1 and KWL1-2with KWL2-2, it showed that when the ratio of FRP bars enhanced but the amount of bars keep the same, the bearing capacity increase unconspicuous.
Theoretical Computation 3.1Computation Model According to the mode maken by Malek, and combine with near surface mounted, we got the new computation model (see figure 2).Think about the reduction of bearing capacity result of stiffness degradation which influence by cracking of concrete, we assume that: (1) Normal stress and shear stress are mutual independence; (2) Debonding failure is result of bond failure between the adhesive layer and concrete for shear stress concentration at the ends of FRP bar.
So in the equation 3-23, it should add a reduction factor ‘’, the formula show like this: (3-24) =, : reduction factor; : amount of FRP bars 4.
Bearing capacity do not increase manifold as the amount of FRP bars increase, it needs some reduction.. 3.
Research the variation trend of of the reduction factor ‘’ while amount of FRP bars increase, and also provide the numeric area of the reduction factor ‘’ by experiment..
Online since: December 2012
Authors: De Jun Li, Hao Fang
Data acquisition system According to the requirements of power department, the installation of a set of power generation and environmental monitoring equipment(is shown in Fig.1 )is stalled at Technology park, its composition including: power data acquisition system, environmental index acquisition system (temperature and humidity, wind direction, irradiation degree)[3] . for the analogue signal that get from the systems are switched into digital signal by the A/D converter, being connected to WINCC by the 485 bus and being saved, and Query the data that collected by Each sensor by Data query software in real-time.
The system data from inverter boot began gathering at 6:30, to inverter shutdown over at 18:30.
Power data are recorded by every 30s, environmental data are recorded once every 5 minutes, the daily capacity get from accumulation of the real-time duration .
Annual accumulative quantity that instead of the conventional energy quantity: (1) =31.30 TON(Standard Coal Equivalent) Among them, W = 4217.14 MJ/ M2 is solar radiation quantity throughout the year for Wuhan area, Ac is Mono-si silicon and polycrystalline silicon PV power system components area.[4] One year time all the data analysis of the power station 4.1 power data analysis Getting A-si cells cumulative capacity from the data of power generation that collected throughout the year by Data acquisition system is 337813 kWh, Mono-si PV modules accumulative capacity is 303895kWp Among it, including the daily average polycrystalline system capacity of925.51 kWh, the daily average capacity of Mono-si silicon system is 832.58kWp.
The Fig.3(b) is China international exchange stand daily radiation data set from October.2010 to October.2011.
Online since: June 2020
Authors: Nurul Hayati Abdul Halim, Nurul Syuhadah Khusaini, Nor Hayati Saad, Qhairunisha Mohd Khalid
The aim of Rasch analysis is to find the extent to which observed rating scale data satisfy the measurement [14].
A preliminary study was done to gather all the data on the current practice at Company X.
Data for analysis is captured from both the IATF 16949 and TPS internal audit checklist.
Data for both internal audit checklists were collected from the internal audit checklist at the same production plant.
The comparison is important for reasonable and practical data.
Online since: July 2011
Authors: Yi Jiung Lin, Hsien Te Lin, Chong Yi Chou
(6) Reduction in carbon dioxide.
After the 96 pieces of data were collected, one optimum combination was and applied on the green roof as planting substrate to evaluate the performance of thermal insulation.
Apart from the surface temperature, air temperature, relative humidity, solar radiation, and precipitation data were observed as weather conditions at a separate measuring station on the roof.
A GRAPHTEC data logger (GL-450AS) with 20 channels and a GRAPHTEC midi LOGGER (GL200-UM-151) with 10 channels were employed to record the data.
The data of September 13, 2010 are used for the detailed discussion because it has the highest temperature in that month.
Online since: October 2014
Authors: Hong Seok Park, Trung Thanh Nguyen
On the contrary, the optimization-based approach requires only experimental or simulated data that can reduce energy use with a lower cost.
The Pareto plot obtained by engineering data mining, in which the data file is collected from the solution of the NSGA2 algorithm.
Collecting manufacturing data - Analysis of whole process chain In the first step, the profound analysis related to whole process chain is conducted.
The objective of this survey, a key starting point for research, is to gain not only an overview of the general on-site of target values but also specifically manufacturing data.
For this purpose, the relevant data was collected in the KOFCO company (industrial project partner).
Online since: August 2018
Authors: Sri Ismiyati Damayanti, Simparmin B. Ginting, Amelia Virgiyani Sofyan, Alip Tania Putri, Wiratni Budhijanto
According the data, it is estimated that Indonesia’s palm oil production will increase to 45 million tonnes of total CPO production in 2020.
According to the data, ZAL Mg2+ had SiO2/Al2O3 mole ratio of 8.8 and ZAL- Fe2+ of 9.957, while physical activated ZAL’s mole ratio was 8.913.
Initial condition data is shown in Table 6.
Initial Condition Data Modified ZAL pH SCOD [mg/L] VFA [mg/L] [%]VS [%]TS Physical Act.
[6] Asriani, Profil Lampung Mencakup Data Penduduk Sumber Daya Alam dan Ekonomi Makro, 2008
Online since: September 2016
Authors: Ilya Vlasov, Boris Ovechkin, Viktor Sergeev, Vasilii Naidfeld, Sergey Panin, Pavlo Maruschak
According to the data of pyrometric monitoring during the treatment the surface layer of the specimens experienced a short-term heating up to temperature of 600...900 °C.
As is known from pyrometer measurement data this layer experienced short term heating up to the temperature of 900° C that can give rise to grain growth.
This agrees well with metallography data (Fig. 1b, c).
According to the testing data the fatigue life-time of specimens under cyclic alternating bending is also increased due to the modification of surface layer by ~ 2 times.
It is manifested primarily in reduction of the average rate of shear strain.
Online since: October 2016
Authors: Toshiki Hirogaki, Takakazu Ikegami, Eiichhi Aoyama
Since the DDM has no reduction gears, it can be presumed that it is easier to estimate the condition, such as inertia and resonance frequency of a workpiece on a table, by using the servo data of the electric current flowing through the DDM than a motor with reduction gears.
The present angular acceleration is calculated by the position data from the rotary encoder employed for a DDM.
Therefore resonance frequency can be measured more accurately from the position data of the rotary encoder.
(2) It is found to be effective for improving kinematic performance of rotary axes to introduce the method of estimating the inertia of a rotary axis by using the servo data obtained form the DDM.
Since the DDM has no reduction gears, more accurate date can be obtained from it and inertia of a rotary axis is estimated more accurately than a motor which has reduction gears.
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