Passive solar design is an economical way of using solar energy in buildings. The thermal behavior of the buildings within its environment over a period of time can easily be predicted using accurate and simple analytical tools. This provides designers the information necessary to satisfy the occupant’s needs, reduce peak cooling/heating power demands, reduce the size of air conditioning/heatin...

For modern VLSI/ULSI fabrication the use of multilevel interconnects is of crucial importance. For electromigration reliability characterizations, time-consuming stress measurements have to be carried out [1,2]. During these measurements a via-hole chain is stressed because of high temperature and high current densities, and the resistance is determined. This type of measurement usually takes m...

J. Visser Th. J. M. Jeurnink NIZO, 6710 BA Ede, Netherlands N A general overview is given of the main factors in the fouling of processing equipment used for heating dairy fluids. The data collected indicate that the primary step in fouling is the adsorption of a monolayer of proteins onto the wall of the heating equipment at room temperature. Real fouling (i.e., the formation of macroscopic la...

This paper describes the design of power electronic converter circuit and simulating the power electronic converter circuit using Matlab/Simulink for induction heating equipment. The circuit designed has the load as induction coil and high frequency electricity is required to heat the workpiece placed within the induction coil. The output power of the load coil is varied by changing the frequen...

A practical method to determine the heating and cooling curves of x-ray tube assemblies with rotating anode x-ray tube is proposed. Available procedures to obtain these curves as described in the literature are performed during operation of the equipment, and the precision of the method depends on the knowledge of the total energy applied in the system. In the present work we describe procedure...

A test equipment was designed to study thermal shock and thermal fatigue of ceramic materials subjected to fast heating (ascending). The equipment was designed to generate thermal stress in a test specimen by heating one surface of it by an oxy-hydrogen flame while cooling the opposite surface. The sample cracked when thermal stress exceeded its mechanical strength. The in situ crack formation ...

Industrial evolution brings major new challenges due to increasing energy demands. This phenomenon encourages the improvement of control methodologies that reduce resource requirements. Lately, it has been observed that the building sector contributes considerably to final energy demand. Consequently, studies have been conducted on the technical systems and solutions applied in this sector to t...

OBJECTIVE Transradial access is widely used for both diagnostic and interventional cardiac procedures. The use of transradial access offers several advantages, including decreased bleeding, fewer vascular complications, and reduced length of hospital stay and cost. However, the small size of the radial artery limits the size of the equipment that can be used via this approach. In this study we ...