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Online since: January 2020
Authors: Sabah Hatam Obaid, Adnan Noori Ahmed, Hadi Raheem Ibrahim
Analytical Study of the Effect of NaCl Solution on Fatigue Resistance of Rotating Shafts Sabah Hatam Obaid1,a*, Adnan Noori Ahmed2,b and Hadi Raheem Ibrahim3,c 1,2,3Al-Mussaib Technical Institute, Al-Furat Al-Awsat Technical University, 51009 Babylon, Iraq ainm.sbh@atu.edu.iq, binm.ad1@atu.edu.iq, cinm.hadi@atu.edu.iq *The corresponding author Keywords: Dynamic shear stress, Heat treatment, Chloride corrosion.
Fig. 1 Fatigue Tester by bending at Technical Institute, AL-Musaib, mechanic department.
Content (% Volume/ Volume of fixed oil) Function Material 80 Base oil Fixed oil 10 Emulsifier Washing soap 5 Disinfectant Phenol 5 Extreme pressure agent Sulphur 2.3 Examination of models with fatigue tester by bending After the immersion of unhardened and hardened models at temperature of 47C0 to conform bending has been conducted in mechanic department laboratory at technical institute, Al-musaib.
El-Sayed, M.
El-Souhily, Internal torsion resistance in deflected shafts, Alexandria Engineering Journal. (2017) [2] S.
Online since: February 2012
Authors: Inigo Pombo, J.A. Sánchez, B. Izquierdo, N. Ortega, Soraya Plaza, U. Alonso
The first model that considered material removal was presented by Webber et al [10].
Anderson et al. [12] presented two finite element models of a conventional grinding and a Creep Feed grinding using the software ANSYS©.
(3) where: Rw: energy fraction evacuated through the piece, dimensionless qt: total heat generated during the process, [W/m2] Fc: tangential force, [N] vw: feed speed, [m / s] bs: wheel width, [m] lc: contact length obtained by Marinescu et al [15], [m] To adjust the FEM model, and following the experience of the authors and the recommendations of the literature, values of 0.4, 0.5 and 0.6 for Rw have been used.
In these models the value of the contact length has been taken from Marinescu et al. [15] (Eq.5).
Acknowledgements The special contribution of the Inovation and Science Ministry of Spain (MICINN) is especially appreciated for its subvention of the research proyect “Integración de modelos numéricos y técnicas experimentales para el aumento del valor añadido en el rectificado de componentes de precisión” (DPI-2010-21652-C02-00).
Online since: September 2011
Authors: Zhen Yu, Ai Li Jiang
Enzyme activity AChE activity was determined at 412 nm at 25oC by the method of Ellman et al.[4].
Balint et al. [2] reported 90 ~ 92% inhibition following methidathion exposure.
For example, Alves et al. [15] reported that furadan induced increase in the activity of CAT as an adaptive response.
Grune and Starton, New York [7] Lowry, O.H., Rosenbrough, N.J., Farr, A.L., Randall, R. 1951.
Environment International 27: 673-679 [20] Handy, R.D., Abd-El-Samez, H.A., Bayomy, M.F.F., Mahran, A.M., Abdeen, A.M., El-Elaimy, E.A. 2000.
Online since: August 2004
Authors: Young Tae Kim, Young Soo Choi, Jae Hoon Sung, Sang Ryong Suh
A spectral based optical sensor using a diodearray spectrometer was tested by Wang et al. [4] and showed a good result.
Andreasen et al. [5] Title of Publication (to be inserted by the publisher) proposed a non-linear regression model to determine the automatic weed density estimate from the relative frequencies of transformed pixel values of RGB gray values.
Steward and Tian [6] and Tang et al. [7] developed procedures to estimate weed population in real-time by applying a Bayes classifier and genetic algorithm respectively to color image data obtained under varying outdoor lighting conditions.
El-Faki et al. [8] tried to discriminate weeds from crop plants, using color machine vision.
El-Faki, N.
Online since: February 2014
Authors: Li Fang Xu, Li Jiao Yang, Yao Hong Jin, Yun Zhu
Li Xing et al. [6] divided Chinese punctuations into two.
Xue et al. [7] treated Chinese sentence segmentation as a comma disambiguation problem and trained a model using data derived from the Chinese Treebank to solve the disambiguation.
Song Qianqian et al. [8] proposed a rule-based method for disambiguating Chinese commas in patent text.
LC_E_SCORE[EL,VOOV_HIGH,ER]}+ (0)CHN[yi,lai]&!
First, a verb whose score is higher than E_TAIL and not EL, VOOV_HIGH or ER is found when goes backward.
Online since: August 2019
Authors: M.N. Bouaziz, Mhamed Tayeb, Salah Hanini
The same studies were presented by Akhtar et al. [24].
Our results concur perfectly with other studies, including those of Partha [50], Kameswaran et al. [54] and Samuel et al. [51].
El-Amin, Magnetohydrodynamic free convection and mass transfer flow in micropolar fluid with constant suction, J.
El-Amin, Magnetohydrodynamic free convection and mass transfer flow in micropolar fluid with constant suction, J.
El-Gamal, A study of a journal bearing lubricated by fluids with couple stress considering the elasticity of the liner, Wear. 224 (1999) 194‑201
Online since: August 2014
Authors: Roberto B. Figueiredo, Cleber Granato de Faria, Tércio Assunção Pedrosa, Paulo Roberto Cetlin, Maria Teresa Paulino Aguilar
This has already been detected for ARMCO iron [9, 10], commercial purity Copper [11-13], Titanium [14] and Aluminum alloys 1100 [4], 6060 [15], Al – 5% Zr [16], Al-6061 and Al 7034 [7].
Fig. 2 Shearing in the ECAP process Materials and Methods The material was comercial purity Aluminum (99.7% Al), received as cast billets; samples with dimensions 15.8 x 15.8 x 100 mm³.were machined out of this billet, with the 100 mm dimension parallel to the billet axis.
El-Hadad, H.
Online since: October 2011
Authors: He Ning, Zhang Qi
The physical state of conservation of energy of the fired zone is determined by the Hugoniot equation: (3) JWL equation of state (EOS) was advanced by Lee E.L. with Lawrence Livermore National Laboratory in 1965 based on the work of Jones and Wilkins[1].
Numerical calculation of Detonation and JWL EOS parameters can apply to explosives containing 11 elements, namely, C, H, O, N, Cl, F, S, Na, K, Al, and Mg.
[4] Kury J W,et al.Metal Acceleration by Chemical Explosives,4th Symp. on Detonation, 1965:3-13
Online since: November 2014
Authors: Xiao Liu, Kui Xia Han, Ji Fang Liu, Xiao Cui, Xiao Cun Jiang
., et al., Construction of customized redundant multiwavelet via increasing multiplicity for fault detection of rotating machinery.
Yan, G., et al., Structural damage detection using residual forces based on wavelet transform.
Schukin, E.L., R.U.
Online since: September 2013
Authors: Shu Xia Zhang, Yu Zhong Zhang
In the objective function field of the notation of Graham et al. ([1]), we write the above four model as, , and , respectively.
Following Chen et al. ([2]), we also useandto characterize SCCP and SDCP, respectively.
Graham, E.L.
Showing 3331 to 3340 of 9914 items