the work is focused on the problem of vibrating beams with a variable cross-section fixed on a rotational rigid disk. the beam is loaded by a transversal time varying force orthogonal to an axis of the beam and simultaneously parallel to the disk's plane. there are many ways of usage of...
The car seat belt anchoring system comprises a rail (5) with a U-shaped cross-section which is fixed to the floor (4). A plate (1) attached to the belt fits into the rail and has a rib (3) which fits into a groove (6) in it. A wedge-shaped section (11) on a second plate...
The main difference is that the general parametric shapes have no limit on the value of these parameters, whereas the dimensions of standardized sections are fixed by the manufacturer and availability of sections. Common parametric shapes include Tee, I, L, pipe, etc., in addition to the ...
Yang and Land (2006) and Yang (forthcoming-b) developed a mixed (fixed and random) effects model for the age-period-cohort (APC) analysis of micro data sets in the form of a series of repeated cross-section sample surveys that are increasingly available to demographers. The authors compare...
atrading blocs or regional trading agreements 贸易的团体或地方贸易的协议[translate] aBottleneck costs are calculated with one fixed or several relevant capacity levels in the crosssection 瓶颈费用在横断面计算与一个固定的或几个相关的容量水平[translate]...
The main difference is that the general parametric shapes have no limit on the value of these parameters, whereas the dimensions of standardized sections are fixed by the manufacturer and availability of sections. Common parametric shapes include Tee, I, L, pipe, etc., in addition to the ...
The proposed tests are based on average of pair-wise correlation coefficients of the OLS residuals from the individual regressions in the panel, and can be used to test for cross section dependence of any fixed order p, as well as the case where no a priori ordering of the cross section ...
3) fixed nozzle 固定喷嘴,恒截面喷嘴4) CL 恒定液面5) specified cross-section 指定截面6) section agreement 截面约定 1. At the last,3-D fractal dimension value of the particle is given according to section agreement method. 使用计算机最小图形单元——像素为数据单位,利用周界直径关系法和...
Many researchers have addressed concerns of omitted variable bias in hedonic price models through the use of spatial fixed effects. We argue that this appr... JK Abbott,HA Klaiber - 《Review of Economics & Statistics》 被引量: 65发表: 2011年 ...
radar cross section; fixed wing; small wingspan; detection; classification1. Introduction In recent years, more and more users have obtained access to small and cheap aerial vehicles, especially multicopters [1]. Along with the useful operations that these vehicles perform, many times they pose ...