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7589529 Method of and apparatus for in-situ measurement of degradation of automotive fluids and the like by micro-electron spin resonance (ESR) spectrometry  
A method of and miniaturized apparatus adapted for in-situ measurement of degradation of automotive fluids and the like by micro-electron spin resonance (ESR) spectrometry, wherein the use of a...
7570055 Molecular identification and electron resonance system and method  
A method of calculating an electron resonance spectra data value for each of one or more chemical constituents. In one embodiment, one or more potential electron capture orbitals is identified for...
7403008 Electron spin resonance microscope for imaging with micron resolution  
ESR microscope systems and methods for examining specimens using both continuous wave and pulsed modes in the 9 to 60 GHz range. The ESR microscope uses an image probe comprising gradient coils in...
7391212 Resonator apparatus for electron spin resonance (ESR) measurements and method for measuring electron spin resonance (ESR) signals  
A resonator apparatus and a method for electron spin resonance (ESR) measurements are disclosed. The resonator apparatus comprises a dielectric resonator and a sample vessel extending through the...
7378847 Efficiently cryo-pumped NMR cryogenic probe  
The vacuum properties of a cryogenic NMR probe maintained at a desired operating temperature by a cold head heat exchanger are improved by a separate heat exchanger operating below the temperature...
7366559 Nuclear magnetic resonance apparatus and method for assessing whole body composition  
A method is disclosed for measuring whole body composition. The method includes confining movement of the body to a selected volume, inducing a static magnetic field in the volume, inducing a...
7292035 NMR.ESR antennas and spectrometers using these  
An NMR/ESR antenna is inserted into a magnet device for generating a static magnetic field, and irradiates a sample with an electromagnetic wave to detect a signal generated from the sample. The...
7268549 Magnetic resonance spectrometer  
EPR spectrometer comprising a ferroelectric single crystal resonator, a rectangular channel with holes in its narrow sides for inserting a sample and wires, a permanent magnet with planar poles,...
7199584 Method and apparatus for high resolution nuclear magnetic resonance imaging and spectroscopy  
A probe, device, and methods for performing nuclear magnetic resonance (NMR) measurements on a suitable sample are provided. The probe includes a hyper polarized tip positioned to cause a dipolar...
7109706 Integrated EWP-STM spin resonance microscope  
A novel spin resonance microscope is disclosed, the microscope design comprising an integrated evanescent wave probe and scanning tunneling microscope tip. The probe and tip may be either the same...
7092706 Apparatus and method for signal strength compensation of highly time-variant mobile radio channels and reception unit for mobile radio transmission  
A signal strength compensation unit for mobile radio receivers is connected upstream of the channel estimator and the channel equalizer and compensates for, in particular, the great, brief signal...
7088101 Aqueous sample holder for EPR and MR spectroscopy  
A sample holder for use in an EPR spectrometer is extruded using a material having a low dielectric constant. The extruded sample holder has a plurality of channels formed in it for holding sample...
7084628 Methods and apparatus for post-exposure determination of ionizing radiation dose  
The instant invention provides in-vivo methods and apparatus for radiation dosimetry assessment in individuals exposed to potentially harmful radiation, based on measurements in-situ of the teeth....
7069067 Method for operating a magnetic resonance apparatus and magnetic resonance apparatus for implementing the method  
A method is provided for operating a magnetic resonance apparatus comprising a magnetic stimulation device, the method comprising bearing a region of a central nervous system of a living...
7057390 Linear beam raster magnet driver based on H-bridge technique  
An improved raster magnet driver for a linear particle beam is based on an H-bridge technique. Four branches of power HEXFETs form a two-by-two switch. Switching the HEXFETs in a predetermined...
6952098 Method of evaluating green malt qualities by electron spin resonance spectrometry and method of evaluating malt qualities  
A method is provided in which a correlation is made between a parameter indicating modification of a sampled malt in a germination process in which barley is germinated, and an ESR signal intensity...
6828789 Cavity resonator for electron paramagnetic resonance spectroscopy having axially uniform field  
A uniform-field resonator includes a central cavity section having a cross-section which is set to the cutoff frequency for a particular microwave propagation mode and a pair of end sections which...
6791324 Probehead and a sample substance for an electron spin resonance dosimeter  
A probehead for an electron spin resonance (ESR) dosimeter comprises a resonator and an insert extending into the resonator. The insert has a guide channel for bringing a sample into the resonator....
6741077 Electron spin resonance measurement method and measurement device for measuring ESR within the interior of large samples  
Disclosed are a method of measuring ESR in a sample located outside a resonator using the B 1 leaking to the exterior from the end of the resonator; and an ESR device comprised of at least a...
6618607 MRI imaging methods using a single excitation  
Signal recovery in functional magnetic resonance imaging (fMRI) is provided by generating a single excitation pulse and exciting a target region of a subject with the generated excitation pulse. A...
6614227 Scanning microwave microscope capable of realizing high resolution and microwave resonator  
In a scanning microwave microscope including a microwave resonator, an exciting unit for exciting the microwave resonator, a first detecting unit for detecting a first detection amount relating to...
6573720 Resonant structure for spatial and spectral-spatial imaging of free radical spin probes using radiofrequency time domain electron paramagnetic resonance spectroscopy  
A radiofrequency (RF) coil design, suitable for detecting time domain electron paramagnetic resonance (EPR) responses from spin probes after pulsed excitation using radiofrequency irradiation...
6472874 EPR imaging device using microwave bridge translator  
A device is described which permits the acquisition of Electron Paramagnetic Resonance Images without employing additional hardware for generation of magnetic field gradients. It incorporates a...
6462546 Method and apparatus for investigating the imperishability of liquid foodstuffs by means of electron spin resonance  
A method and an apparatus for investigating the imperishability of n liquid foodstuffs using electron spin resonance (ESR) exposes samples of the foodstuffs to an elevated temperature for an...
6452372 Duet jfet rf oscillator-detector for flow cytometer  
A junction field effect transistor (JFET) RF oscillator-detector circuit generates an RF signal for an apparatus for conducting electrical measurements of particles contained in a carrier fluid...
6430040 Foldable bicycle computer  
A bicycle computer includes a base member structured to mount to a structural member of a bicycle. A cover having an inner surface is swingably coupled to the base so that the inner surface may be...
6387332 Safety system  
A safety system for a gas process or facility for measuring the concentration of a specified gas in an area or chamber and determining whether it is safe to allow access to such area or chamber. In...
6335625 Programmable active microwave ultrafine resonance spectrometer (PAMURS) method and systems  
A preferred embodiment of the present invention includes a system for detecting a presence of a macromolecule having one or more resonant frequencies. The system includes a pulse generator (a...
6323632 Solid state RF oscillator-detector for flow cytometer  
A junction field effect transistor (JFET) RF oscillator-detector circuit generates an RF signal for an apparatus for conducting electrical measurements of particles contained in a carrier fluid...
6101015 Variable-coupling quasioptical electron resonance apparatus  
A variable-coupling quasioptical electron paramagnetic resonance apparatus. In one embodiment, the variable-coupling quasioptical electron paramagnetic resonance apparatus includes a variable...
6025718 RF power calibration for an MRI system using local coils  
An MRI system performs a calibration prescan in which NMR projection signals are produced using a calibration pulse sequence. The readout gradient employed during the acquisition of each NMR...
5952831 Automatic sample exchange device  
A small-sized, inexpensive automatic sample exchange device for use with an NMR spectrometer. The exchange device has a mechanism acting to convey sample tubes and also to grip them. The exchange...
5926021 Method of magnetic resonance imaging for the time-resolved imaging of pulsatile vessels (projection angiography)  
A magnetic resonance imaging method comprises exciting spins in an investigation volume via a radio frequency pulse and the signal produced thereby is subsequently read-out after appropriate...
5889402 Ferromagnetic resonance measuring cavity resonator and electron spin resonance measuring apparatus having same  
A ferromagnetic resonance measuring cavity resonator comprises a cavity resonator having a cavity formed by a side wall. The side wall is provided with an input/output hole and a through-hole. A...
5882304 Method and apparatus for determining probe location  
A magnetic probe (1) for use with a magnetic resonance imaging apparatus comprises an electron spin resonance (ESR) magnetometer. The position of the probe (1) tracked by measuring the resonant...
5833601 Methodology for determining oxygen in biological systems  
The invention provides apparatus and methods for measuring oxygen tensions in biological systems utilizing physiologically acceptable paramagnetic material, such as India ink or carbon black, and...
5811305 Analytical method for evaluating flavor stability of fermented alcoholic beverages using electron spin resonance  
Quantitative determination and evaluation of the flavor stability of fermented alcoholic beverages are performed by measuring the changes of the amount of spin adduct from the formation behavior of...
5781011 Dielectric resonator-based electron paramagnetic resonance probe  
An apparatus for use in electron paramagnetic spectroscopy having a resonant structure with one or more dielectric resonators, the resonant frequency of which may be varied by varying the distance...
5668734 Method for analyzing 2D transferred noesy spectra of molecules undergoing multistate conformational exchange  
Disclosed is a method of determining two-dimensional nuclear- or rotating frame-Overhauser effect spectroscopy intensities for a ligand-enzyme system having flexible active cites, wherein the...
5629625 Process for adjusting as to frequency, particularly microwave bridges, and device embodying such a process  
A process for frequency tuning microwave bridges and a device for practicing such a process. The process is characterized in that it consists in subjecting a resonator (3) to the radiation...
5621322 VHF/RF volume antenna for magnetic resonance imaging including VHF applicator and RF coil arranged to provide perpendicular fields  
A transducer for Overhauser magnetic resonance imaging comprises a cylindrical NMR coil 11 and a two part VHF applicator 12, 13. The applicator and coil are arranged such that the electric field...
5596276 Cavity resonator for an electron spin resonator  
The invention provides a cavity resonator for an electron spin resonance device in which modulation coils for generating a modulation magnetic field to be applied to a sample in the cavity...
5564421 VHF applicator for magnetic resonance imaging  
An applicator for coupling an electromagnetic field to a sample to be imaged by magnetic resonance imaging, comprising an electrical periodic structure constructed so as to oscillate with...
5548217 Microwave spectrometers  
A microwave spectrometer includes a sensing chamber into which is introduced a gas or constituent to be analyzed. Microwave radiation is introduced into the chamber and any of the chamber resonant...
5528146 Method and apparatus for detecting electron spin transitions in zero field  
A method and apparatus for detecting spin transitions for a paramagnetic substance that are induced in the absence of a magnetic field. The method includes the steps of placing a substance under...
5512829 Method of measuring pulsed electron spin resonance signals and pulsed electron spin resonance spectrometer  
A pulsed electron spin resonance spectrometer is provided with a first microwave oscillator for generating measuring signals of a high microwave frequency of about 80 GHz or above. A second...
5504429 Probe for detecting and dosing molecular oxygen by means of electronic paramagnetic resonance spectrometry  
A probe for detecting and dosing molecular oxygen by the electronic paramagnetic resonance spectrometry of a sample of lithium phthalocyanine in contact with the atmosphere to be tested. The probe...
5502386 Pulsed low frequency EPR spectrometer and imager  
An EPR imager and spectrometer includes pulse generating system for generating broadband pulses having an RF carrier frequency that is not highly absorbed by biological samples. The pulse...
5494030 Apparatus and methodology for determining oxygen in biological systems  
The invention provides apparatus and methods for measuring oxygen tensions in biological systems utilizing physiologically acceptable paramagnetic material, such as India ink or carbon black, and...
5488950 Stabilizer for MRI system  
An electron spin resonator (ESR) is used to compensate for temporally varying instabilities in the main magnetic field B o of a nuclear magnetic resonance imaging apparatus during the derivation...
Matches 1 - 50 out of 148 1 2 3 >