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Online since: September 2010
Authors: Alexis Daniel Negrea, Gabi Dobra, Viviana Filip
The data for this mechanism are: - ϕ - the angle of the element 1 at some point in time; - the movement rule: φ = π/3+ω0t+(1/2) ε0 t2, where ω0= 3,5 rad/s, ε0 = 5 rad/s2 - Fr = 10 kN - the resistance force which taks action over element 5; - the elements' weights m1 = 0,3 kg, m2 = 0,1 kg, m3 = 1 kg, m4 = 0,4 kg, m5 = 0,1 kg; Fig. 1 The plan mechanism linked with five bars - the inertia moments of the elements regard their weight' centers J1 = 10-3 kg⋅m2, J2 ≈ 0, J3=3⋅10-2 kg⋅m2, J4=2,1⋅10-3 kg⋅m2, J5 ≈ 0; - the length of the elements AC=a=300mm, AB=l1=200mm, CC'=b=400mm, CD=l3=500mm, DE=l4=250mm.
Write and solve matrix equation for determining the reactions (forces and moments) from links and torque Mm We solve the equation for the kinetostatic equilibrium of the entire system in a matrix form: [R] ⋅{X}+{F}= {0} (26) {X} = - [R]-1 ⋅ {F} (27) where: {F} - is the vector of the reduction elements in point A of the forces and inertia moments and it is written as a column matrix with 15x1 dimensions and contains the elements: R1x, R1y, M1A, R2x, R2y, Fig. 2 The plan mechanism with five bars.
Having all the necessary condition in order, we roll the calculation module for the mechanism' complete rotation, then using Results and Plots command we obtain data regarding the elements' displacements, the velocities and the accelerations.
Online since: June 2012
Authors: R.B. Morgunov, F.B. Mushenok, O.V. Koplak, S.L. Chernyshova
It is indicate on good reproducibility of the AC data.
To separate different regimes of domain wall motion in chiral crystals we analyzed the obtained data using the Cole-Cole diagram [5].
Further increase of the frequency leads to reduction of c``.
Online since: December 2012
Authors: W. Deligeer, Hong Liang Wan, S. Asuha, Si Qin Zhao
The Langmuir adsorption model was employed for the analysis of the experimental data (Fig. 6).
As shown in the figure, a good linear relation with correlation coefficient (R2) of 0.9948 was obtained, indicating that experimental data fit well with the Langmuir adsorption model.
Ogawa, Facile synthesis of Fe3O4 nanoparticles by reduction phase transformation from g-Fe2O3 nanoparticles in organic solvent, J.
Online since: June 2025
Authors: Chun Yan Su, Min Li, Lin Feng Wang, Jia Ni Yang
Therefore, it is very meaningful to remove hexavalent chromium in water, and the commonly methods are reduction method and adsorption method.
The MMT and MnO2/MMT composites were tested by using an adsorption and desorption isothermometer.The MMT and MnO2/MMT composites specific area of surface and pore characteristics were obtained from the test data, as shown in Table 1.
From the data, MnO2/MMT composites have enlarged the pore structure to a certain extent compared with MMT.
Online since: February 2011
Authors: Pan Li Hua, Rui Cheng Yang
Even though the knowledge of corrosion process of the Ni-Cr-Mo-Cu alloy in HCl solution have been hardly known, the corrosion reaction has been extensively studied on other Ni-based alloy in HCl solution, it can be firmly established that the basic corrosion reactions are alloy dissolution and hydrogen reduction.
This relationship can also be developed by the testing data, and shown as fig.7 at -0.5V.
The dependence of logarithm of hydrogen evolution current density on the logarithm of the H+ ion concentration are presented by the experimental data in fig8, that of equations were shown as the followings, and that should agree with Eq. (1).
Online since: May 2004
Authors: H. Güler, B. Keşanlı, Ö. Pamuk, A. Morkan, M. Kızılyallı
Results and Discussion Synthesis of Pb2Sr2CaCu3Sx The X-Ray powder diffraction data of the product (Fig.1 ) was almost the same as PbS ( galena ) reported in JCPDS Card No. 5-592 which has rock salt structure with the space group Fm3m and a= 5.936(2) Å [11].
This shows the reduction of Cu2+ to Cu 1+ .
X-Ray Powder Diffraction Data of Pb2Sr2CaCu3-ySx , Radiation, Co Kα Figure 2.
Online since: July 2011
Authors: Hong Qin Liu, Xu Yan, Hai Yan Duan, Xian En Wang
Hence, the article selects the relevant data of Japan from 1960 to 2007, use the LMDI model to analyze the energy consumption and its influence factors of three typical period, researches the energy consumption characteristic and discipline in the process of industrialization and post-industrial, hoping to find a way to improve the energy saving and emission reduction in the process of industrialization of our country.
All the basic data are from the World Bank Group web.
Online since: October 2006
Authors: M. Sánchez Carrilero, Miguel Álvarez, M.J. Cano, J.R. Astorga, Mariano Marcos Bárcena, Enrique Ares
This weight reduction involves the application of new development lighter materials.
Additionally, data were acquired, treated and processed through the Perthometer Concept software.
This software also allows carrying out a flexible measurement data management.
Online since: November 2012
Authors: Xue Gong Huang, Lin Huang
Because of the long control channel, the magneto-rheological fluid can generate congestion, which leads to the reduction of control flexibility.
The old and new MR damper structure sizes are as shown in table 1: Table1 Structure parameters of old and new damper Effective length [mm] Skeleton length [mm] Gap [mm] Stage Piston diameter [mm] Coil number One stage Connection type old new 40 50 40 10 1.5 1 4 5 37 38 500 91 serial parallel According to the data shown in table 1, the newly designed MR damper coil connection is changed from serial to parallel.
Table2 Current i(A) and τy (KPa) i 0.10 0.33 0.54 0.75 1.03 1.36 1.68 2.03 2.41 τy 0.95 5.1 11.1 19.5 28.8 35.1 39 42.4 45.9 Fitting the data in table 2, the electronmagnetic model of the new damper can be gotten, as in Eq.4, (4) Fig.2 The curve of i-τy The figure 2 shows the relationship curve between input current and shear yield stress, providing the reference for the current output from the control system.
Online since: February 2014
Authors: Long Cheng Que, Lin Hai Wei, Jian Lv, Ya Dong Jiang
Single slope ADC with half-period counter Conventional counter taking use of the rising or falling edge of the clock only generates one data within a clock circle.
It means that two data will be generated in one period.
A CMOS Imager With Column-Level ADC Using Dynamic Column Fixed-Pattern Noise Reduction.
Showing 22061 to 22070 of 40389 items