The transverse stability and broadening of the beam turn out to be the most problematic issues in the Spallation Neutron Source ring operation. The particle simulation code ORBIT, initially written for space charge and halo growth studies, now is able to cover a broad spectrum of the accumulator ring problems. Here we present an implementation of a collective force simulation due to impedance e...

We present here an accelerator modeling suite that integrates the capability of MAD-X and UAL packages, based on the Standard eXchange Format (SXF) interface. The resulting environment introduces a collection of accelerator applications ranging from the lattice design to complex beam dynamics studies. The extended capabilities of the MADX-UAL integrated approach have been tested and effectively...

An accumulator and cycling unit from the Electronic Numerical Integrator and Calculator (ENIAC) are implemented on a Field Programmable Gate Array (FPGA). The FPGA implementation is not architecturally identical to the original ENIAC, but the original architectural design is maintained where possible. The design maintains decimal number representation, ring counters to increment numbers, and te...

This paper presents a novel concept of active pneumatic suspension which uses an accumulator, airspring, and smart control system to actuate a variable orifice mechanism which connects the airspring to the accumulator. The main objective is to obtain a linear model for this pneumatic suspension so as to use existing advanced linear control methodologies to ascertain the closed loop performance ...

A new architecture of multiplier-and-accumulator (MAC) for high-speed arithmetic. By combining multiplication with accumulation and devising a hybrid type of carry save adder (CSA), the performance was improved. Since the accumulator that has the largest delay in MAC was merged into CSA, the overall performance was elevated. The proposed CSA tree uses 1’scomplement-based radix-2 modified Booth’...

The paper presents the investigation of a prototype cold accumulator using water–ice latent heat for storage process. concept was based on 200-L-capacity cylindrical tank in which spherical capsules filled with water were placed. Beds polypropylene diameters 80 mm, 70 and 60 mm used tests. operated water–air pump. Based test results, following parameters calculated: cooling capacity, power, ene...

A secondary battery (accumulator) employing molten metals or metal alloys as active masses at both electrodes and a salt electrolyte in between is called an all-liquid-metal accumulator (LMB). Separation of the liquid based on segregation caused by different densities immiscibility materials characteristic feature. High coulometric storage capabilities molten-metal combined with relatively low ...

The article presents the thermal technical calculation of underground heat accumulator, which is used to prevent a sharp increase in air temperature hothouses on sunny days and accumulate solar energy. coefficient transfer by air-pipe pipe-soil boundary layers between 20-35 °C air-driven accumulator with help ventilator was calculated analytical method. mathematical model change time length dur...