We computationally demonstrate a new method for coherently controlling the rotation-axis direction in asymmetric top molecules with an optical centrifuge. Appropriately chosen electric-field strengths and centrifuge's acceleration rate allow to generate nearly arbitrary rotational wavepacket. For D$_2$S 2H-imidazole (C$_3$H$_4$N$_2$) we created wavepackets at large values of quantum number $J$ ...

The seismic response of underground structures such as subway stations is critical. However, the complex structure experiments under a dynamic centrifuge shaking table are significantly limited. This study conducts test two-story three-span 50 g gravitational acceleration to investigate soil–structure interaction effects (SSI). performed on sand soil-structural model using laminar shear box wit...

Centrifuge modeling of one-step outflow tests for unsaturated parameter estimations H. Nakajima ∗ and A. T. Stadler ∗∗ Geoscience Research, Idaho National Laboratory, Idaho Falls, Idaho, USA ∗ now at: Center for Deep Geological Environments, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan ∗∗ now at: URS Corporation, Cleveland, Ohio, USA Received:...

We propose a theory for axial segregation of suspensions of non-neutrally buoyant particles in a rotating cylinder. The cylinder is oriented in the horizontal plane, so that any axial forces must arise from interparticle interactions. We show that the hydrodynamic interaction between pairs of particles produces a relative motion in the axial direction, independent of the gravitational force. If...

Abstract Rainfall-induced slope instabilities are ubiquitous in nature, but simulation of this type hazards with centrifuge modelling still poses difficulties. In paper, we introduce a rainfall device for initiating failure medium-sized centrifuge. This system is simple, robust and affordable. An array perforated hoses placed close above the model surface to generate raindrops. The intensity de...

This study aims to find out how the effectiveness of using a simple manual centrifuge as laboratory tool and teaching aid in science learning affects student outcomes at SMPN 14 Bengkulu City. The research method is included Quasi Experimental Design form Nonequivalent Control Group Design. Based on results testing hypothesis post-test data for experimental control classes calculation t test In...