Magnetic Levitation Gives Computer Users Sense Of Touch ScienceDaily (Mar. 5, 2008) — Computers, long used as tools to design and manipulate three-dimensional objects, may soon provide people with a way to sense the texture of those objects or feel how
Animate Projects explores the relationship between art and animation, and the place of animation and its concepts in contemporary art practice. We offer artists a unique space to create work, and develop initiatives that allow an international audience to
The secret lives of invisible magnetic fields are revealed as chaotic ever-changing geometries . All action takes place around NASA's Space Sciences Laboratories, UC Berkeley, to recordings of space scientists describing their discoveries .
A very-high-sensitivity magnetometer is described in detail. The sensitivity of the apparatus is typically of the order of 10−9 A cm2/(Hz)1/2, so that changes in magnetic moment of 10−10 A cm2 can be detected. The magnetic moment can be calculated by simulation of the measurement system. An example of a hysteresis loop is shown. The size of the sample is determined by electron microscopy. The physical limits of the measurement system are worked out and discussed.
A laser fiber was delivered via a catheter inserted through a perineal template and guided to the target with MRI. The tissue temperature was monitored during laser ablation by MRI thermometry. Accumulated thermal damage was calculated in real time. Immediate post-treatment contrast-enhanced MRI confirmed devascularization of the target. No adverse events were noted. MRI-guided focal laser therapy of low-risk PCa is feasible and may offer a good balance between cancer control and side effects.
Materials Sciences and Applications is an international journal dedicated to the latest advancement of materials. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of materials sciences and applications.
Twine is the simplest possible way to get the objects in your life texting, tweeting or emailing. A durable, battery-powered 2.5" square provides WiFi connectivity and internal and external sensors. A simple web app lets you quickly set up your Twine with human-friendly rules — no programming needed.
A tomographic metal detection and characterization system has been designed and built for recovering information about magnetic and/or conductive objects within the detector space. This information is gathered as a result of a ‘walk-through’ scan of a candidate in the same manner as for a typical security metal detector archway. Following the passage of the candidate, the system uses measurements from an array of coils to calculate the polarizability tensor, which describes the low frequency electromagnetic characteristic of a small metallic object when it interacts with an ac magnetic field. In addition to the magnetic polarizability dyadic tensor, the position of the perturbation is also determined as a product of the inversion algorithm. The system has been tested and is capable of inverting object tensors with <20% typical parameter variation, and determines three-dimensional object location with a typical error of less than ±3 cm. In this paper, results are shown from a set of four different test object examples, each with a different magnetic polarizability tensor. This object set consists of a ferrite sphere, a ferrite rod and phantom aluminium and steel handgun shapes.
The industry of window embellishments has changed as a result of magnetic blinds. It has given renters and homeowners alike access to a practical and fashionable option. Blinds have grown in popularity as a means of increasing seclusion since they are useful and versatile. Controlling the lighting in the spaces is another benefit. They are user-friendly choices that are also flexible.
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