Results 31 to 40 of about 783,699 (277)

Study on ratcheting of beams under the combination of gravity and seismic load

Mechanical Engineering Journal, 2019
Ratcheting is one common phenomenon under excessive earthquakes. This study focuses on clarifying the ratcheting mechanism of beams subjected to the combination of gravity and seismic loadings. The sinusoidal excitations or their combinations represented
Jinqi LYU, Masakazu ICHIMIYA, Md Abdullah Al BARI, Ryunosuke SASAKI, Naoto KASAHARA   +4 more
doaj   +1 more source

Perancangan Sensor Gerak Benda pada Benturan Berlebihan untuk Pengujian Pre-Straining Spring Momentum Exchange Impact Dumper (PSMEID) Dengan Metoda Prediksi Waktu Benturan (Preview)

Jurnal Nasional Teknik Elektro, 2020
Vibration that occurs due to excessive impact can damage the construction of an object. Excessive Impact which usually occurs at certain times such as aircraft landing gear collisions with runways that can be fatal if the vibrations produced cannot be ...
Darmawan Darmawan, Lovelyson Lovelyson, Pharmayeni Pharmayeni   +2 more
doaj   +1 more source

Workshop: Excess Growth and Apoptosis [PDF]

Hypertension, 2001
Several groups including ours have demonstrated cardiac hyperplasia in neonates from genetically hypertensive rat strains. We have shown that similar problems exist in the kidney as well. More recently, we found that excessive heart and kidney weight is neonatally related to inhibition of apoptosis.
P, Hamet, N, Thorin-Trescases, P, Moreau, P, Dumas, B S, Tea, D, deBlois, V, Kren, M, Pravenec, J, Kunes, Y, Sun, J, Tremblay   +10 more
openaire   +2 more sources

Acceleration in turbulent channel flow

, 2010
We use Direct Numerical Simulations of turbulent channel flow to study the acceleration A corresponding to the full fluid velocity u and the acceleration a corresponding to the fluctuating velocity u? ? u?hui where hui is the mean flow.
S. W. Coleman, Z. Hu, Chen, L., Vassilicos, J.C., L. Chen, Hu, Zhiwei, Coleman, S.W., J. C. Vassilicos   +7 more
core   +1 more source

Impact of Excessive Screen-Based Media Use on Early Childhood Development: A Short Review

Yaşam Becerileri Psikoloji Dergisi, 2018
Over the recent years, a significant increase has been observed in screen based media use among different age groups. Unregulated and excessive use of technological instruments such as smart phones, tablets or computers also leads to a number of health ...
Yunus Pinar, Fatma Unal, Nihal Kubilay Pinar   +2 more
doaj   +1 more source

A hierarchical approach for rigid-body dynamics model simplification of a high-speed parallel robot by considering kinematics performance

Science Progress, 2021
Considering the real-time control of a high-speed parallel robot, a concise and precise dynamics model is essential for the design of the dynamics controller.
Jinlu Ni, Jiangping Mei, Weizhong Hu
doaj   +1 more source

A New Track Association Model Based on Uncertainty Distribution

IEEE Access, 2023
Aiming at the problem of degradation of correlation quality caused by excessive idealization of noise in the traditional track correlation model, this paper introduces the uncertainty theory in the track correlation process, and uses the uncertainty ...
Qiu Jianjie, Cai Yichao, Li Hao, Han Yu
doaj   +1 more source

Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion [PDF]

, 2013
We study theoretically and numerically the acceleration of protons by a combination of laser radiation pressure acceleration and Coulomb repulsion of carbon ions in a multi-ion thin foil made of carbon and hydrogen.
He, Minqing, Wang, Jyhpung, Liu, Tung-Chang, Shao, Xi, Chen, Shih-Hung, Liu, Chuan-Sheng, Su, Jao-Jang, Eliasson, Bengt, Tripathi, Vipin   +8 more
core   +4 more sources

Photon acceleration by laser produced wakefields on Astra [PDF]

, 2004
This chapter looks at photon acceleration by laser produced wakefields on ...
Thomas, A.G.R., Trines, Raoul M. G. M., Mangles, S.P.D., Norreys, P.A., Bingham, Robert, Divall, E.J., Najmudin, Z, Foster, P.S., Langley, A.J., Collier, J.L., Hooker, C.J., Viskup, Richard, Jaroszynski, Dino, Reitsma, Albert, Gallacher, J. G., Krushelnick, K., Murphy, C.D., Smith, J,M.   +17 more
core   +4 more sources

Development of Acceleration Factors to Evaluate the Across-Wind and Torsional Accelerations for Wind-Sensitive Buildings

Buildings
Wind-induced acceleration represents one of the main challenges in the dynamic behavior of tall buildings. Its estimation can be carried out through experimental wind tunnel tests or using the analytical expressions proposed in various international ...
Daniel Corona-González, Adrián Pozos-Estrada   +1 more
doaj   +1 more source