This paper presents the theoretical and experimental investigations on the transient stress of the suspension spring in a reciprocating hermetic refrigeration compressor. The torques acting to the compressor body of a multi-cylinder compressor and the transient vibration of the compressor body are analyzed over a wide range of start and stop operations. The dynamic stresses of the suspension sp...

A multi band sleeve dipole antenna for jammer application is proposed. The antenna can cover band in which mobile and other wireless devices operate. The design antenna shows very good omnidirectional characteristics and scattering parameter S11 value less than -10db. The dipole is made of two concentric hallow cylinder with different radius and different lengths. The antenna is fed at the cent...

The three phase catalyst is popularly employed in modern engines for exhaust control and its catalytic efficiency is determined by the Air-Fuel ratio (A/F). In this paper, individual A/F control problem is addressed for a multi-cylinder SI engine, of which one exhaust pipe is shared by many cylinders. Firstly, an overlap model to describe the dynamics from individual fuel injection to A/F value...

The rheology of granular materials near an interface is investigated through proton magnetic resonance imaging. A new cylinder shear apparatus has been inserted in the magnetic resonance imaging device, which allows the control of the radial confining pressure exerted by the outer wall on the grains and the measurement of the torque on the inner shearing cylinder. A multi-layer velocimetry sequ...

We present a novel approach for hardware-accelerated collision detection. This paper describes the design of the hardware architecture for primitive inference testing components implemented on a multi-FPGA Xilinx Virtex-II prototyping system. This paper focuses on the acceleration of ray-triangle intersection operation which is the one of the most important operations in various applications su...

This paper studies the impact of mechanisation on employment patterns in coffee plantations Indian state Karnataka. study attempts to highlight fact that farm developing countries decreases with agricultural mechanisation, particularly for women workers. To measure technology workers Karnataka, unit level data from employment-unemployment survey was collected National Sample Survey Office (NSSO...

We present an algorithm of finding numerical solutions of pulsar equation. The problem of finding the solutions was reduced to finding expansion coefficients of the source term of the equation in a base of orthogonal functions defined on the unit interval by minimizing a multi-variable mismatch function defined on the light cylinder. We applied the algorithm to Scharlemann & Wagoner boundary co...

New pneumatic actuators developed in the author's laboratory will be presented with their applications to new mechatronics. Examples of them are a pneumatic rubber actuator for compliant robots, a micro pneumatic tube actuator assisting the colonscope insertion, a pneumatic stepping motor with high torque and resolution, a pneumatic drive bicycle, an intelligent pneumatic cylinder which has enc...

In this paper, we present a multi-source nanonetwork model for biomedical diagnosis applications, based on the Localized Surface Plasmon Resonance by different shape gold nanoparticles (i.e., cylinder, cube, and rod). We present the process of multi-source emission, diffusion, and reception of nanoparticles, based on the ligand/receptor binding. Then, a multi-detection process of DNA alteration...