Manufacturing processes yielding stronger, yet lighter structures are sought for in many industries and scientific applications. Freeze casting is a fabrication process that offers way to achieve these strong, lightweight structures, but only single direction (the of the templating-ice growth). Applying uniform magnetic field allows increased strength an additional direction, thus allowing them...

We present a formulation of mean-field approximation for layered feed-forward stochastic networks. In this formulation, one can obtain not only estimates of averages for state variables of the networks but also those of intra-layer correlations, the latter of which cannot be obtained by the conventional mean-field approximation. Moreover, this formulation provides a framework to treat “conditio...

The magneto-optical trap (MOT) is an essential tool for collecting and preparing cold atoms with a wide range of applications. We demonstrate planar-integrated MOT by combining optical grating chip magnetic coil chip. flat simplifies the conventional six-beam configuration down to single laser beam, replaces anti-Helmholtz coils cylindrical geometry. Up ${10}^{6}$ ${}^{87}\mathrm{Rb}$ are trapp...

Surface coils for exciting and detecting NMR signals are often used in place of the traditional solenoid or Helmholtz coils in situations where only a small region of a large sample is of interest (I). In particular, this is the situation in many in vivo studies (1-5). Typically, it is desirable to observe signals from a single organ without interference from the surrounding tissue. The degree ...

Electromagnetic induction imaging has wide potential application in the disciplines of medicine, security, industry, geophysics and scientific research in general. The present study focuses on the applications in the security industry and in particular on providing a new tool for cargo screening in the context of the detection of illicit trafficking of special nuclear materials. The thesis repo...

There are no specific recommendations in clinical guidelines about the best time, imaging tests, or intervals for following up patients with intracranial aneurysms treated with endovascular techniques. We reviewed the literature, using the following keywords to search in the main medical databases: cerebral aneurysm, coils, endovascular procedure, and follow-up. Within the Cerebrovascular Disea...

Previous research showed that pulsed functional magnetic stimulation can activate brain tissue with optimum intensity and frequency. Conventional coils are always set as a figure-8 type or Helmholtz. However, the fields generated by these uniform around target, their performance still needs improvement. In this paper, novel of coil is proposed to shrink irritative zone strengthen intensity. Fur...

The design and testing of a Helmholtz prototype probe with relatively homogeneous radiofrequency field that can be used for MRI are presented in this paper. It consists two coaxial separately tuned ellipsoidal rings wire symmetric arrangement. developed structure is tested experimentally free space compared the results obtained an equivalent circular standard coil. Complete electrical modeling ...

Introduction Signal intensity uniformity in a magnetic resonance (MR) image indicates how well the MR imaging (MRI) system represents an object. One of the major sources of image non-uniformity in high-field MRI scanners is inhomogeneity of radio-frequency coil. The aim of this study was to investigate non-uniformity in head, head and neck, and body coils and compare the obtained results to det...