نتایج جستجو برای: میرایی heave

تعداد نتایج: 2480  

Journal: :Cold Regions Science and Technology 1981

Journal: :Journal of King Saud University - Engineering Sciences 1989

2004
Donald A. Walker Howard E. Epstein William A. Gould Alexia M. Kelley Anja N. Kade Julie A. Knudson William B. Krantz Gary Michaelson Rorik A. Peterson Chien-Lu Ping Martha K. Raynolds Vladimir E. Romanovsky Yuri Shur

Frost boils in northern Alaska vary from large, 2–3-m diameter, barren non-sorted circles to completely vegetated hummocks. Summer warmth increases southwards from the coast. Average thaw-layer thickness shows the opposite trend. Frost heave shows no trend along the climate gradient but is affected by soil texture. Heave is greatest on frost boils with fine-grained sediments. Biomass increases ...

2012
Lotta Winter Tillmann H. C. Kruger Jean Laurens Harald Engler Manfred Schedlowski Dominik Straumann M. Axel Wollmer

We are familiar with both pleasant and unpleasant psychotropic effects of movements associated with vestibular stimulation. However, there has been no attempt to scientifically explore the impact of different kinds of vestibular stimulation on mood states and biomarkers. A sample of 23 healthy volunteers were subjected to a random sequence of three different passive rotational (yaw, pitch, roll...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2015
Arnt G Fredriksen Trygve Kristiansen Odd M Faltinsen

Regular wave-induced behaviour of a floating stationary two-dimensional body with a moonpool is studied. The focus is on resonant piston-mode motion in the moonpool and rigid-body motions. Dedicated two-dimensional experiments have been performed. Two numerical hybrid methods, which have previously been applied to related problems, are further developed. Both numerical methods couple potential ...

2016
Qinghai Li Weiping Shi Zhongcheng Qin

In mine roadway support operations, floor bolting not only played a role in floor heave control, but also in reinforcing roof and its two sides. Correspondingly, bolting of roof and two sides also played a part in floor heave control. To quantify the effect of such bolting, based on roadway support in extremely weak rock, three physical models were produced and tested in laboratory. Through com...

2013
Shahid Qamar Laiq Khan Saima Ali

The main role of a car suspension system is to improve the ride comfort and road holding. The traditional spring-damper suspension is currently being replaced by either a semi-active or active suspension system, because, passive suspension system cannot give better ride comfort and handling property. In order to improve the capability of active suspension systems, a robust Adaptive B-spline Neu...

2018
Ying Guo Liqin Liu Xifeng Gao Wanhai Xu

Abstract: Aerodynamics and motion performance of the floating vertical wind turbine (VAWT) were studied in this paper, where the wind turbine was H-type and the floating foundation was truss spar type. Based on the double-multiple-stream-tube theory, the formulae were deduced to calculate the aerodynamic loads acting on the wind turbine considering the motions of the floating foundation. The su...

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