A beam such as a laser beam a known polarization state is passed through the container. An electrical field is created in the container to reduce optical interference while preserving the ability to more accurately measure the concentration of one or more gasses in the container. A change in the polarization state of the beam after passage through the container is detected. Based on the detected change in the polarization state of the beam, the presence of the one or more gasses can be determined.
An analytical method of and system for monitoring cell status whereby excitation energy is focused to an excitation cytometry volume in a cell sample to fluoresce first and second fluorophores of a cell. Fluorescence signals from the first and second fluorescing cell fluorophores are directed to a detection subsystem. A first peak in fluorescence intensity for the first fluorophore is detected as is a second peak in fluorescence intensity for the second fluorophore. The fluorescence signals are processed to identify when the first and second peaks occur substantially simultaneously indicating the presence of a cell at the excitation cytometry volume instead of background fluorescence and in response, the cellular status of the cell is measured using the intensity of the levels of the first and second peaks.
G01N 15/01 - Investigating characteristics of particlesInvestigating permeability, pore-volume or surface-area of porous materials specially adapted for biological cells, e.g. blood cells
An analytical method and system for monitoring cellular status wherein excitation energy is focused into an excitation cytometry volume within a cell sample that is located within a bioreactor or fermenter to induce optical signals from intracellular compounds. The resulting optical signals are directed to a detection subsystem that has at least two detection channels. One channel detects the elastic (Rayleigh or Mie) scattering signal from the cell that identifies the presence of the cell within the excitation volume. Another channel detects the fluorescence and/or Raman scattering signal of intracellular compounds of the cells. The elastic scattering signals associated with individual cells are used as event-triggers to gate the detection of the intracellular fluorescence and/or Raman signal to eliminate the background noises from the suspension media. The intracellular fluorescence and/or Raman scattering signal are used to characterize cellular status based on the fluorescence intensities at specific fluorescence wavelengths and peak analysis of Raman scattering spectra.
A method of and system for monitoring the level of hydrogen peroxide gas in a system such as an isolation barrier. Gas is sampled from the system to a gas cell. The sampled gas may include hydrogen peroxide gas and water vapor. A laser beam from a laser source at a known polarization state is passed through the gas cell and the hydrogen peroxide gas and water vapor therein. An electrical field is created in the gas cell to reduce optical interference from water vapor while preserving the ability to more accurately measure the concentration of hydrogen peroxide gas in the gas cell. A change in the polarization state of the laser beam after passage through the gas cell is detected. Based on the detected change in the polarization state of the laser beam, the concentration of the hydrogen peroxide gas in the gas cell is determined.
A method of and system for monitoring the level of hydrogen peroxide gas in a system such as an isolation barrier. Gas is sampled from the system to a gas cell. The sampled gas may include hydrogen peroxide gas and water vapor. A laser beam from a laser source at a known polarization state is passed through the gas cell and the hydrogen peroxide gas and water vapor therein. An electrical field is created in the gas cell to reduce optical interference from water vapor while preserving the ability to more accurately measure the concentration of hydrogen peroxide gas in the gas cell. A change in the polarization state of the laser beam after passage through the gas cell is detected. Based on the detected change in the polarization state of the laser beam, the concentration of the hydrogen peroxide gas in the gas cell is determined.
A handheld gas detector comprising a housing including therein a laser beam source for outputting a laser beam, a microelectromechanical mirror in the path of the laser beam and actuatable in one or two angular directions that reflects the laser beam towards a target remote from the housing, a controller configured to actuate the microelectromechanical mirror to direct the reflected laser beam to a predetermined pattern of locations on the target, a photodetector for detecting backscattered laser energy from the target, and a processing subsystem configured to process outputs of the photodetector at selected locations of the pattern. The processed photodetector outputs are utilized to render a visible depiction of a gas plume on a display screen.
A method for determining a calibration factor in Doppler flowmetry velocity measurements in the living eye includes imaging the eye with Doppler flowmetry and processing data to obtain blood velocity, volume, and flow maps using Doppler flowmetry formulas that provide velocity as a mean frequency expressed in Hz, and volume and flow in arbitrary units. A selected blood vessel is probed with Doppler OCT to measure the absolute velocity of blood at that location expressed in mm/s to determine a calibration factor used to convert the velocity measured with Doppler flowmetry expressed in Hz to velocity expressed in mm/s.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
8.
Process for the production of high conductivity, carbon-rich materials from coal
A method of producing high conductivity carbon material from coal includes subjecting the coal to a dissolution process to produce a solubilized coal material, and subjecting the solubilized coal material to a pyrolysis process to produce the high conductivity carbon material.
A method of separating scandium from a feedstock wherein a scandium enriched solution is produced from the feedstock and the scandium enriched solution is extracted to produce an organic phase of the scandium enriched solution. The organic phase of the scandium enriched solution is re-extracted to produce an aqueous phase including scandium chloride. The aqueous phase is precipitated and calcinated to produce scandium oxide powder.
A method for producing a coated powder including homogeneously mixing an electrochemically active material including electrochemically active particles with nanosize particles in a ratio determined by the surface area of the electrochemically active particles to form a homogeneous powder, adding a polymer and mixing to form a homogeneous solid mixture, adding a solvent to dissolve the polymer and form a viscous slurry, mixing the viscous slurry, and drying the viscous slurry to cause the nanosize particles to become localized adjacent to an outer surface of the electrochemically active particles with the polymer maintaining the proximity between the nanosize conductive particles and the outer surface of the electrochemically active particles.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
An antimicrobial composition including low molecular weight dendrimers of formula (1):
2 is a molecular spacer between the linker X and the nitrogen atom.
A handheld optical coherence tomography imaging and tissue sampling system and method of imaging and sampling a tissue is disclosed. The method includes inserting a catheter probe into a biopsy needle. The biopsy needle can be attached to a hand-held scanning and sampling device. The biopsy needle is maneuvered to an investigation site. A three-dimensional image of the tissue at the investigation site is captured with the catheter probe.
A lightweight flexible patient litter includes, in one example, spaced compression longerons each foldable at spaced legs, a bed between the compression longerons, and a longitudinal truss structure on each side of the litter each including a longeron, its spaced legs, and one or more flexible tension members connected thereto. One or more lateral truss structures may each include opposing legs on each side of the litter and one or more flexible tension members connected thereto. A bed truss structure may include one or more tension members.
A method of operating a Tm:doped fiber amplifier including selecting a length of Tm:doped optical fiber to be less than one hundred meters, doping the optical fiber with active ions at a doping level of greater than one percent, optically pumping the doped optical fiber with a first laser beam having a wavelength longer than the wavelength where a maximum absorption cross section is provided by the active ions, and creating a population inversion between two active ion energy levels with the first laser beam, the active ions providing a gain to a second laser beam.
H01S 3/30 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
A method for producing a coated powder including homogeneously mixing an electrochemically active material including electrochemically active particles with nanosize particles in a ratio determined by the surface area of the electrochemically active particles to form a homogeneous powder, adding a polymer and mixing to form a homogeneous solid mixture, adding a solvent to dissolve the polymer and form a viscous slurry, mixing the viscous slurry, and drying the viscous slurry to cause the nanosize particles to become localized adjacent to an outer surface of the electrochemically active particles with the polymer maintaining the proximity between the nanosize conductive particles and the outer surface of the electrochemically active particles.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
17.
Electrolytic system and method for filtering an aqueous particulate suspension
An apparatus for the concentration of suspended algae particles in an aqueous solution. The apparatus includes an electrolytic cell containing at least an anode and a cathode, and a filter. The electrolytic cell receives a solution containing suspended algae particles therein. A power supply is near the filter. A zone of depleted suspended algae particles is near the filter, formed under the influence of an applied electric field from the power supply.
The coal ash can be sorted into groups of substantially unburned carbon and substantially burned carbon. The substantially unburned carbon or the substantially burned carbon can be magnetically treated to cause separation into a substantially magnetic portion and a substantially non-magnetic portion. The substantially magnetic portion or the substantially non-magnetic portion can be filtered into a substantially course portion and a substantially fine portion. The substantially coarse portion or the substantially fine portion can be treated with a mineral acid to form an aqueous mineral acid solution. The aqueous mineral acid solution can be extracted to form an organic solution that includes the rare earth salts. The organic solution can be mixed with water to form an aqueous solution that includes the rare earth salts. The rare earth salts can be separated from the aqueous solution.
An apparatus for detecting leaks from a gas pipeline or storage system includes a light source configured to emit a beam with at least one spectral component capable of interacting with pipeline gas, a reflector configured to reflect a portion of the beam, an optical detector configured to detect the reflected beam, a signal processing module coupled to the output of the optical detector configured to analyze the detected beam and output a measured concentration value that characterizes the amount of target gas in the beam path, and a statistical processing module coupled to the signal processing module configured to store and analyze the measured concentration value. The statistical processing module is further configured to compute a value based on statistical information associated with the stored plurality of concentration values and compare the computed value to a first predetermined threshold, and transmit a first alarm signal if the computed value is greater than the first predetermined threshold.
G01M 3/20 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
G01M 3/22 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for valves
F17D 5/02 - Preventing, monitoring, or locating loss
20.
Combined reflectance confocal microscopy-optical coherence tomography system for imaging of biological tissue
A dual-modality apparatus for imaging of biological tissue includes a reflectance confocal microscopy (RCM) imaging apparatus and an optical coherence tomography (OCT) imaging apparatus. A first optical component reflects a first beam of light provided by a RCM imaging apparatus towards a sample and passes a second beam of light provided by an OCT imaging apparatus towards the sample, such that the first and second beam of lights share at least a portion of an imaging path.
Rare earth elements are recovered from coal ash. The coal ash with rare earth elements can be treated with a mineral acid to form an aqueous mineral acid solution. The aqueous mineral acid solution can be extracted to form an organic solution that includes the rare earth salts. The organic solution can be mixed with water to form an aqueous solution that includes the rare earth salts. The rare earth elements are separated from the aqueous solution.
A retinal imaging device includes an optical system configured to (i) scan a portion of the retina of the eye with a line of light, (ii) descan reflected light from the scanned portion of the retina, and (iii) provide output light in a line focus configuration. The device includes a detection device including a linear array of asymmetric pixels having at least a 2: 1 ratio of length to width, a detection device with multiple adjacent linear arrays, and/or a detection device using a time delay and integration (TDI) architecture.
A catalyst free method of igniting an ionic liquid is provided. The method can include mixing a liquid hypergol with a HAN-based ionic liquid to ignite the HAN-based ionic liquid in the absence of a catalyst. The HAN-based ionic liquid and the liquid hypergol can be injected into a combustion chamber. The HAN-based ionic liquid and the liquid hypergol can impinge upon a stagnation plate positioned at top portion of the combustion chamber.
C06B 47/00 - Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosivesSuspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
C06B 31/00 - Compositions containing an inorganic nitrogen-oxygen salt
C06B 29/00 - Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
C06C 9/00 - Chemical contact ignitersChemical lighters
F02K 9/95 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant thereforControl thereof characterised by starting or ignition means or arrangements
A method of forming a metalized polymeric bubble in a space, microgravity environment is described. A liquid polymer bubble having a predetermined diameter is formed from a mixture comprising a liquid polymer and at least one of a UV curing material, a stabilizer, a UV absorber, or a surfactant. The liquid polymer bubble is cured with radiation to form a rigid polymer bubble. The rigid polymer bubble is then metalized with a metal to form the metalized polymeric bubble.
A product critical temperature during freeze drying is determined. The product is imaged using optical coherence tomography (“OCT”). The product is freeze dried while the temperature of the product is measured. The product critical temperature is the temperature at which a product structure event occurs during freeze drying.
G01N 25/02 - Investigating or analysing materials by the use of thermal means by investigating changes of state or changes of phaseInvestigating or analysing materials by the use of thermal means by investigating sintering
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
G01K 7/00 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
G01K 13/00 - Thermometers specially adapted for specific purposes
A product critical temperature during freeze drying is determined. The product is imaged using optical coherence tomography ("OCT"). The product is freeze dried while the temperature of the product is measured. The product critical temperature is the temperature at which a product structure event occurs during freeze drying.
The invention features a method of forming a metal phosphate coated cathode. Either a metal salt or a phosphate salt is dissolved in a nonaqueous solvent to form a first solution. The other of the metal salt or the phosphate salt (e.g., whichever compound is not dissolved in the nonaqueous solvent) is dissolved in a second solvent to form a second solution. The first solution and the second solution are mixed to form a precursor solution. A cathode material is added to the precursor solution to form a cathode-precursor solution. The cathode-precursor solution is dried to form the metal phosphate coated cathode.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/05 - Accumulators with non-aqueous electrolyte
H01M 4/02 - Electrodes composed of, or comprising, active material
28.
Electrolytic system and method for filtering an aqueous particulate suspension
An electrolytic filtration method and apparatus for the concentration and collection of suspended particulates from aqueous solutions is disclosed. The electrolytic cell contains at least an anode and a cathode, and in one embodiment contains a plurality of anodes and cathodes. The electrolytic cell also contains a filter, and in one embodiment the filter is a moving belt filter. While not bound by theory, the electrolytic filtration method and apparatus is based on the electrophoretic movement of algae particles suspended in an aqueous solution away from the filter under the influence of an electric field. In one embodiment the electric field is a pulsed waveform with unidirectional voltage or current pulses. In another embodiment, the electric field is a pulsed waveform with bidirectional voltage or current pulses.
A method of forming an azido energetic alcohol includes converting an energetic diol to a cyclic sulfite, oxidizing the cyclic sulfite to a cyclic sulfate, and opening the cyclic sulfate. The cyclic sulfate is opened, followed by hydrolysis, to form an azido energetic alcohol.
An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina. The first scanning device is configured to move the first imaging beam along the retina in the slow axis of the SLO mode to acquire the first image and (ii) to move the second imaging beam along the retina in the fast axis of the OCT mode to acquire the second image.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina. The first scanning device is configured to move the first imaging beam along the retina in the slow axis of the SLO mode to acquire the first image and (ii) to move the second imaging beam along the retina in the fast axis of the OCT mode to acquire the second image.
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion.
A carbon nanofiber can have a surface and include at least one crystalline whisker extending from the surface of the carbon nanofiber. A battery anode composition can be formed from a plurality of carbon nanofibers each including a plurality of crystalline whiskers.
An optical device for integrated photonic applications includes a substrate (100), a dielectric waveguide (200) and a surface plasmon waveguide (400). The dielectric waveguide includes a dielectric waveguide core (240) disposed relative to a dielectric waveguide cladding (220) and a common cladding (320). The surface plasmon waveguide includes a surface plasmon waveguide core (440) disposed relative to the common cladding and a surface plasmon waveguide cladding (425). The common cladding couples the dielectric waveguide and the surface plasmon waveguide. The optical device can be configured as an optical isolator (10), a frequency converter (50), or an amplitude modulator (80).
G02B 6/122 - Basic optical elements, e.g. light-guiding paths
G02F 1/095 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour
G02F 1/065 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on electro-optical organic material in an optical waveguide structure
A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye.
A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye.
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
Methods and devices for distraction osteogenesis are disclosed employing an energy storage device and a controlled release of energy to provide a separating force. For example, bone expansion devices can include a first anchor element attachable to a first segment of bone, a second anchor element attachable to a second segment of bone, and an actuator for applying a separating force between the first and second anchor elements. The actuator can include a potential energy storage device and a controller for releasing energy from the energy storage device to provide the separating force.
An embodiment of a launch/recovery device for both surface and underwater vehicles includes a plurality of driven wet-traction members (55) arranged to form a low drag (e.g., water flow-through) ramp design. The wet-traction members provide traction even when wet between the water vehicle and the launch/recovery device. As a result of utilizing driven wet-traction members, the use of conventional hoists, special capture devices such as hooks and tow lines, and personnel located within the water to attach the capture devices to the water vehicle is eliminated. The wet-traction members provide both strength and flexibility to the launch/recovery device. That is, while the wet-traction members are strong enough to support the weight of the water vehicle, they are at the same time flexible enough to deflect a distance to accommodate a soft landing of the water vehicle on the ramp, while providing recovery forces and motion.
09 - Scientific and electric apparatus and instruments
Goods & Services
Industrial and scientific apparatus, namely, a spectrometer for measuring, detecting, sensing, monitoring, controlling, and/or regulating mass flux, density, surface area, velocity, acceleration, current, voltage, resistance, temperature, pressure, particle concentration, kinematic viscosity, dynamic viscosity, mass, momentum, time, force, torque, energy, heat conduction, heat convection, stress, strain, or work of matter in a thermodynamic system or components thereof, and replacement parts therefor; industrial and scientific apparatus, namely, an absorption spectrometer for measuring, detecting, monitoring, and sensing mass flux for refrigeration systems, freeze dryer systems and vacuum pump systems; industrial and scientific apparatus, namely, an infrared absorption spectrometer for measuring, detecting, monitoring and sensing mass flux for pharmaceutical freeze dryer systems
