directional simulation, among techniques for reliability analysis of engineering structures, is well known. in this context, directional simulation in load space, because of the considerable advantages of lower dimension of working space, is of considerable interest. as is expected due to structural resistance variability, the location of the relevant limit state(s) is no longer constant and mu...

high temperatures are often encountered in almost all of the combustion systems, therefore, thermal radiation heat transfer can influence the droplets heat up rate and consequently their life time. in this paper, the effect of thermal radiation heat transfer is investigated for two cases of directional and spherically symmetric illuminations. the flow and temperature fields insdie and outside o...

This article has focused on evaluation and identification of effective parameters in positioning performance with an odometry approach of an omni-directional mobile robot. Although there has been research in this field, but in this paper, a new approach has been proposed for mobile robot in positioning performance. With respect to experimental investigations of different parameters in omni-dire...

Directional excitation of guidance modes is central to many applications ranging from light harvesting, optical information processing quantum technology. Of paramount interest, especially, the active control near-field directionality provides a new paradigm for real-time on-chip manipulation light. Here, it found that given dipolar source, its can be toggled efficiently via tailoring polarizat...

To analyze the multi-dimensional seismic mitigation performance and torsional vibration characteristic of an L-shaped frame structure with a magnetorheological damper (MRD). Firstly, mechanical property MRD is experimentally studied. Then, calculation models without MRDs are found through theoretical analysis, programs compiled. Finally, time history responses calculated during excitation bi-di...

Determination and analysis of vibration behavior of structures for at least first few natural frequencies and mode shapes needs several sensors to be connected at different non node points and exciting the structure at one point. Other method for determination of first few mode shapes is to excite several points of the structure at once and sensing the response from one point.  Both methods nee...

In the development of microwave-to-optical (MO) quantum transducers, suppressing added noise induced by optical excitation remains a major challenge. Here we report an integrated superconducting cavity electro-optic circuit based on single crystalline thin-film aluminum nitride ultralow microwave and losses. We demonstrate efficient bi-directional MO conversion at milli-Kelvin temperatures, wit...

background: solid targets that consist of powder and electrodeposited targets are used commonly to produce radionuclides by accelerators. since silver is easily electrodeposited in cyanide baths and has a very excellent thermal conductivity, the electrodeposited target is preferable to produce 109cd. to avoid cracking or peeling of the target during bombardment, it should have a level surface a...

neural mass models are computational nonlinear models that simulate the activity of a population of neurons as an average neuron, in such a way that different inhibitory post synaptic potential (ipsp) and excitatory post synaptic potential (epsp) signals could be reproduced. these models have been developed either to simulate the recognized neural mechanisms or to predict some physiological fac...

Excitation in the outer loop is adjusted to obtain a minimum detected signal at the centered probe. This can be done quite accurately and defines antisymmetric excitation for the antennas (az = —aJ. Antenna #2 is then shorted at the ground plane resulting in (bl/aJ= – 1, and the phase bridge is balanced to produce a null at the detector. This balance occurs when b,= –uZ = al and establishes a p...