The research led by Gali (AER 1999) and Basu et al. (AER 2006) raises two important questions regarding the validity of the RBC theory: (i) How important are technology shocks in explaining the business cycle? (ii) Do impulse responses to technology shocks found in the data reject the assumption of ‡exible prices? This paper argues that the conditional impulse responses of the U.S. economy to t...

The impulse sources are heat impulses or force impulses lengthways the arrangements. They are represented mathematically by Delta functions and Dirac impulses of finite duration. Conventional fitting conditions are compared hereby. The successive time integration of the PDE provides a system of two equations. A Dirac impulse changes into a Ramp function this way and the Delta function becomes t...

OBJECTIVE Osteochondral graft transplantation has garnered significant attention because of its ability to replace the lesion with true hyaline cartilage. However, surgical impaction of the graft to anchor it into the defect site can be traumatic and lead to cell death and cartilage degeneration. This study aimed to test the hypothesis that increasing impulse magnitude during impaction of osteo...

To assemble a heavy payload to the spacecraft (free-floating base), present study proposes scheme of multiobjective trajectory planning for preimpact motion redundant space manipulator (mounted on base). Force impulse self-assembly is derived as function joint angles/velocities, base pose, and impact direction. The problem formulated optimization minimize force impulse, attitude disturbance, en...

In this paper we report the results of simulations of a 2D gravity driven, dissipative granular flow through a hopper system. Measurements of impulse distributions P (I) on the simulated system show flow-velocity-invariant behavior of the distribution for impulses larger than the average impulse < I >. For small impulses, however, P (I) decreases significantly with flow velocity, a phenomenon w...

Radiation force-based elasticity imaging is currently being investigated as a possible diagnostic modality for a number of clinical tasks, including liver fibrosis staging and the characterization of cardiovascular tissue. In this study, we evaluate the relationship between peak displacement magnitude and image quality and propose using a Bayesian estimator to overcome the challenge of obtainin...

Squat jump (SJ) has been extensively used in training, yet analysis in trained athletes is scarce. Therefore, main research question was: what strength parameters can better explain the best SJ performance in trained athletes? Thirty five athletes performed 3 maximal SJ (using a 17kg bar) weighted jumps while ground reaction forces were sampled using a force platform synchronized with a linear ...

Multiple sclerosis (MS) has a multifactorial etiology located at the interaction point of environmental factors--nutritional, geographic, infectious, etc.--with genetic factors, which confers susceptibility to disease or alters its development. This research presents a case study focused on complex assessment of a patient using clinical and functional assessment, biomechanical gait evaluation u...

In order to be successful in karate, it is necessary to apply the highest punch impulse at impact while maintaining dynamic body stability during the entire action. Here we test two different techniques to execute a specific karate punch and we compare expert and novice performances to explore the punch efficacy at different skill levels. Each participant, standing on a force platform, was aske...

In this paper, we perform an input-output analysis of the linearized Navier-Stokes equations by investigating their spatio-temporal ’impulse response’. Our first motivation for this problem comes from experimental work, where transition to turbulence is observed to occur either naturally, with so-called ’turbulent spots’, or when these spots are intentionally induced in the flow by deliberate e...