Abstract: Magnetic resonance imaging methods and apparatuses that can enhance and speed up acquisition of functional magnetic resonance images are provided. An imaging system can generate a functional image from a magnetic resonance image collecting a magnetic resonance signal from a patient who does one or more tasks as directed. A plurality of functional images along a time series can be generated by separating a plurality of magnetic resonance images generated along the time series during a collecting period into image groups, each corresponding to a predetermined temporal phase. The resting period and a task-execution period can be repeated a plurality of times along the time series during the collection period. A statistical process can then be performed on each of the image groups, and the functional images can be displayed by a display unit.

Abstract: There is provided a scan condition determining apparatus for a magnetic resonance imaging system comprising accepting means for accepting specification of a desired scan time; and searching means for searching for a second scan condition based on a first scan condition defined before the specification, by adjusting values of parameters affecting a scan time or a signal-to-noise ratio of signals obtained by a scan, said second scan condition being one with which the scan time approximates within an allowable range or matches the desired scan time, and besides, a lowest value of a relative signal-to-noise ratio of the signals approximates within an allowable range or matches a lowest value of the relative signal-to-noise ratio of the signals estimated based on the first scan condition. The parameters include, for example, any one of a number of times of addition, a y-axis direction resolution, a repetition time, and a number of data acquisition passes.

Abstract: A system and method acquiring images of a region of interest (ROI) of a subject using a magnetic resonance imaging system. The system or method are capable of acquiring pathological data from tissue in the ROI believed to be pathological tissue and acquiring baseline data from tissue in the subject believed to not be pathological tissue. The system or method are also capable of determining correlation parameters from baseline data, generating corrected data using the baseline correlation parameters to correct the pathological data at least for intrinsic heterogeneity, and generating a report using the corrected data.

Abstract: An Adaptive Positioning System provides a method for directing and tracking position, motion and orientation of mobile vehicles, people and other entities using multiple complementary positioning components to provide seamless positioning and behavior across a spectrum of indoor and outdoor environments. The Adaptive Positioning System (APS) provides for complementary use of peer to peer ranging together with map matching to alleviate the need for active tags throughout an environment. Moreover, the APS evaluates the validity and improves the effective accuracy of each sensor by comparing each sensor to a collaborative model of the positional environment. The APS is applicable for use with multiple sensors on a single entity (i.e. a single robot) or across multiple entities (i.e. multiple robots) and even types of entities (i.e. robots, humans, cell phones, cars, trucks, drones, etc.).

Abstract: A method and system for time-of-flight (ToF) positioning in an IEEE 802.11 network comprises a responder station to transmit samples of preambles as the preambles are received. The samples represent channel information. The preambles comprise extension high-throughput long training fields (HT-LTFs). An initiator station is arranged to perform a time-of-arrival calculation based at least in part on an analysis of the channel information.

Abstract: Broadband signal transmissions may be used for object detection and/or ranging. Broadband transmissions may comprise a pseudo-random bit sequence or a bit sequence produced using, a random process. The sequence may be used to modulate transmissions of a given wave type. Various types of waves may be utilized, pressure, light, and radio waves. Waves reflected by objects within the sensing volume may be sampled. The received signal may be convolved with a time-reversed copy of the transmitted random sequence to produce a correlogram. The correlogram may be analyzed to determine range to objects. The analysis may comprise determination of one or more peaks/troughs in the correlogram. Range to an object may be determines based on a time lag of a respective peak.

Abstract: In a frequency-modulated continuous-wave radar processing system and method, a linear frequency ramp signal is defined. The linear ramp signal is divided into a plurality of time sections. The sections of the linear ramp signal are rearranged in time such that the plurality of sections define a transmit control signal different than the linear ramp signal. A radar transmission signal is generated having a frequency varying with time according to the transmit control signal, and the radar transmission signal is transmitted into the region of interest. An intermediate frequency (IF) signal is generated using the radar transmission signal and radar receive signals received from the region of interest, a frequency of the IF signal being a difference between the frequency of the radar transmission signal and a frequency of the radar receive signals. The IF signal is low-pass filtered. Radar processing is performed on the low-pass-filtered IF signal.

Abstract: The disclosure provides a radar apparatus for estimating a position and a velocity of a plurality of obstacles. The radar apparatus includes a slave radar chip. A master radar chip is coupled to the slave radar chip. The master radar chip includes a local oscillator that generates a transmit signal. The slave radar chip receives the transmit signal on a first path and sends the transmit signal back to the master radar chip on a second path. A delay detect circuit is coupled to the local oscillator and receives the transmit signal from the slave radar chip on the second path and the transmit signal from the local oscillator. The delay detect circuit estimates a routing delay from the transmit signal received from the slave radar chip on the second path and from the transmit signal received from the local oscillator.

Abstract: A computer-implemented method is provided for filtering clutter from a radar signal received by an antenna. The method includes determining a transient clutter voltage at first and second times separated by a time interval, determining a clutter correlation for the time interval, and dividing a received signal correlation by the clutter correlation. In alternate embodiments, the clutter correlation can be combined with a noise correlation and the sum divided by the signal correlation.

Abstract: An integrative multi-sensors Lidar scanning system includes GPS, Lidar sensor, inertial measurement unit and control and storage system; POS system is used to acquire pose and coordinate position and realize time synchronization of the system; control and storage system is produced by integrated development based on low-power development board, which is used to store the collected data and communicate with ground station through wireless network; it could also include one or several external sensors; the parts described above are all fixed on mounting rack to form the integrative multi-sensors Lidar scanning system, and the system connects to platform through the mounting rack. This system is small in size, light in weight and low in power consumption; it is of higher stability and security; it is more convenient for the users to acquire various remote sensing data; it can be widely applied to the 3D data acquisition field.

Abstract: An optical apparatus includes a photosensitive diode unit, a lens and a microstructure unit. The microstructure unit is arranged between the photosensitive diode unit and the lens. After plural light beams passing through the lens are received by the microstructure unit, travelling directions of the plural light beams are changed. Consequently, at least a portion of the plural light beams is guided to the photosensitive diode unit. In such way, the light collecting efficacy of the photosensitive diode unit is enhanced.

Abstract: The invention presents methods and instrumentation for measurement or imaging of a region of an object with waves of a general nature, for example electromagnetic (EM) and elastic (EL) waves, where the material parameters for wave propagation and scattering in the object depend on the wave field strength. The invention specially addresses suppression of 3rd order multiple scattering noise, referred to as pulse reverberation noise, and also suppression of linear scattering components to enhanced signal components from nonlinear scattering. The pulse reverberation noise is divided into three classes where the invention specially addresses Class I and Class II 3rd order multiple scattering that are generated from the same three scatterers, but in opposite sequence.

Abstract: A method and an apparatus for performing a beamforming by using unfocused ultrasounds are disclosed. Some embodiments of the present disclosure provide a method and an apparatus for performing a beamforming, when processing an ultrasound image obtained by transmitting unfocused ultrasounds to a field-of-view and receiving reflection signals from the field-of-view, which include calculating transmission delay times taken by ultrasounds transmitted by transmit elements of a transducer to arrive at a receive focusing point, calculating reception delay times taken by reflection ultrasound signals reflected at the receive focusing point to arrive at receive elements of the transducer, and applying the calculations of the transmission delay times and the reception delay times to reception signals at the receive elements.

Abstract: Various implementations described herein are directed to a non-transitory computer-readable medium having stored thereon a plurality of computer-executable instructions which, when executed by a computer, cause the computer to perform various actions. The actions may include receiving sonar data from a sonar transducer, identifying a subset of the received sonar data to be displayed on the screen, and identifying a deepest level from the subset. The actions may further include determining a depth range that includes the deepest level, and rendering an image of the subset based on the depth range.

Abstract: A radar system comprising a transmitter controller, configured to control an oscillator such that the oscillator provides a transmit-radar-signal a transmit-first-overlapping-portion and a transmit-second-overlapping-portion that corresponds to the instantaneous frequency of the transmit-first-frequency-overlapping-portion. The transmitter controller is configured to reconfigure the oscillator from a first-operating-mode to a second-operating-mode between a transmit-first-ramp-frequency-portion and a transmit-second-ramp rising-frequency-portion. The radar system also includes a receiver controller configured to receive a received-radar-signal that represents a reflected version of the transmit-radar-signal, and provide a combined-overlapping-portion based on a combination of the transmit-first-overlapping-portion, the transmit-second-overlapping-portion, a received-first-overlapping-portion, and a received-second-overlapping-portion.

Abstract: A ground penetrating radar antenna array is consistently maintained at a spacing of less than or equal to about 4 inches above the target surface. As a result, the antenna array may be moved up to 75 mph while maintaining accuracy of data collection. The apparatus includes a wooden support from which non-elastic straps are suspended. The straps are attached to a housing containing the ground penetrating radar antenna array and receiver. The housing is supported from below by a pair of skis that have wear plates attached to their undersides with the wear plates engaging the target surface. The wear plates maintain the distal ends of the antennas within the antenna array at a spacing from the target surface of less than or equal to 4 inches, preferably 3.75±0.25 inches. The method of operation is also disclosed.

Abstract: Certain features relate to using a distributed antenna system as a hybrid system for providing wireless communications coverage and operating in a radar security mode. A remote unit is configured for extending wireless communications coverage by communicating signals between a head-end unit and one or more user equipment devices located within the remote unit's coverage area. The remote unit can be configured to obtain motion detection radar information based on movement of persons or objects located within the coverage area of the remote unit. The hybrid distributed antenna system can be configured to selectively operate between modes of providing wireless coverage and providing radar security.

Abstract: A method and system for generating an image of a scene behind a wall, wherein the scene is represented as a grid, by first transmitting a radar pulse through the wall using a transmitter and receiving a set of echoes corresponding to the radar pulse being reflected by the scene in a receiver at a known location. Based on the location, an imaging operator that relates the set of echoes to the grid is determined. Using the imaging operator, a sparse delay kernel that matches a response of a current image to a similar response in the set of echoes is determined. Then, the current image is updated, based on the set of echoes, the imaging operator, and the sparse delay kernel. The transmitting, the receiving, the determining, the obtaining, and the updating steps are repeated for different locations until a termination condition is reached.

Abstract: A vehicle is provided with a forward-looking radar (FLR) assembly. The assembly includes a radar module mounted to a bracket or frame of the vehicle. Because precision in the angular positioning of the radar is desirable, the radar module is designed such that its vertical angular orientation can be adjustable. An adjustment screw connects the radar module and the bracket. The adjustment screw is provided with a plurality of annular flat engagement surfaces between the radar module and the bracket. Rotation of the engagement surfaces rotates the adjustment screw, causing the radar module to angularly adjust relative to the bracket. The engagement surfaces being between the radar module and the bracket allow for adjustment of the adjustment screw from its side in addition to its end surfaces.

Abstract: A parallel running vehicle detecting apparatus is provided, which includes a first distance sensor for detecting distance of an object in a first detection area on a rear lateral side of a vehicle, a second distance sensor for detecting distance of an object in a second detection area, a parallel running vehicle detector for detecting a parallel running vehicle based on detections of the first and second distance sensors, and a storage for storing a detection distance history of the second distance sensor. The parallel running vehicle detector is provided with multiple determination conditions for determining whether the object detected by the first distance sensor is the parallel running vehicle, and changes the parallel running vehicle determination condition based on the detection distance history stored in the storage.

Abstract: Various implementations described herein are directed to a castable sonar device that may include a housing. The housing may include a buoyant component and a sonar transducer element configured to produce compressed high intensity radar pulse (CHIRP) sonar. The housing may include a wireless data communication module for communicating with one or more wireless computing devices enabled to display sonar images.

Abstract: Optical ground tracking apparatus for use with buried object locators or other instruments or devices are disclosed. In one embodiment, a buried object locator includes a locator module disposed in our coupled to the housing to sense a buried object based on emitted magnetic fields, and a surface tracking module for determining motion information of the buried object locator based on light reflected from a tracking surface.

Abstract: A sensor system for a vehicle for detecting bridges and tunnels is described, which includes a lateral LIDAR sensor, which is located on a first side of the vehicle and has a detection area covering a lateral surrounding area of the vehicle, and a control unit for evaluating the measuring data from the lateral LIDAR sensor. The lateral LIDAR sensor is positioned rotated about a vertical axis so that part of the detection area of the lateral LIDAR sensor at the front in the travel direction detects an upper spatial area located at a predefined distance ahead of the vehicle. The lateral LIDAR sensor is tilted about its transverse axis with respect to the horizontal, so the detection area of the lateral LIDAR sensor detects the remote upper spatial area at a predefined height above the vehicle using its part which is at the front in the direction of travel.

Abstract: The invention is directed to a device and method for conducting measurement of a Doppler shift caused by molecular and aerosol movement while simultaneously providing measurement of temperature using LIDAR. The device incorporates a light source; and a Fabry-Perot etalon having a resonant cavity formed with two plane parallel reflecting surfaces, wherein the light source is positioned relative to the a Fabry-Perot etalon such that light is injected into a plane parallel resonant cavity of the Fabry-Perot etalon at an angle of incidence other than normal to the reflecting surfaces. The Fabry-Perot etalon may be formed with each of the parallel reflecting surfaces having different reflectivities. The light source may be positioned to direct the light to bypass a first reflective surface of the plane parallel resonator cavity, and/or implemented using a divergent light source.

Abstract: A portable and wearable radiation dosimeter has a wearable housing. There is an optically stimulated luminescent (OSL) radiation sensing element removably mounted in the wearable housing so that the OSL radiation sensing element can be removed and read by an external OSL reader. There is also a fluorescent nuclear track detector (FNTD) radiation sensing element removably mounted in the wearable housing so that the FNTD radiation sensing element can be removed and read by an external FNTD reader. At least one on-board reader for at least one of the OSL and FNTD radiation sensing element for determining information about the radiation exposure of the sensing element while the sensor remains mounted in the housing, preferably using a different mode of reading than either OSL or FNTD.

Abstract: Described is a self-indicating instant radiation dosimeter (1001) for monitoring high energy radiations, such as X-ray. The dosimeter contains a radiation sensitive, color changing, indicating composition (10), e.g., a diacetylene (R—C?C—C?C—R?, where R and R? are substituents groups) or a radiochromic dye, a polymeric binder (20) and optionally a shelf life extender (50) or an activator (40). The radiation sensitive composition (10) changes color instantly when exposed to high energy radiation. The dose is estimated by comparing the color with a color reference chart or more accurately with a spectrophotometer or an optical densitometer. The radiation sensitive composition (10) is protected from low energy radiation such as UV light, by a layer of low energy absorbing materials, such as UV absorbers.

Abstract: An x-ray image detector includes a light image sensor having a depth, a front side comprising a sensing surface, and a back side. The x-ray image detector further includes a substrate plate on the back side and surrounding the depth of the light image sensor such that the substrate plate forms a lip around the light image sensor. The lip is level with the front side of the light image sensor. The x-ray image detector further includes a scintillator over the sensing surface of the light image sensor and at least a portion of the lip.

Abstract: An image processing apparatus includes: a measurement data acquiring unit that acquires data obtained by using an imaging apparatus to capture an image formed by an electromagnetic wave transmitted through an object, as measurement data of the object; an image generating unit that generates a first image and a second image that represent information on different physical quantities, from the measurement data; a filter characteristics determining unit that determines, based on the first image, filter characteristics to be set when an anisotropic filter is applied, for each position in the image; and a filtering unit that applies the anisotropic filter to the second image while varying the filter characteristics of the anisotropic filter for each position in the image in accordance with the filter characteristics determined based on the first image.

Abstract: A fissile neutron detection system includes a neutron moderator and a neutron detector disposed proximate such that a majority of the surface area of the neutron moderator is disposed proximate the neutron detector. Fissile neutrons impinge upon and enter the neutron moderator where the energy level of the fissile neutron is reduced to that of a thermal neutron. The thermal neutron may exit the moderator in any direction. Maximizing the surface area of the neutron moderator that is proximate the neutron detector beneficially improves the reliability and accuracy of the fissile neutron detection system by increasing the percentage of thermal neutrons that exit the neutron moderator and enter the neutron detector.

Abstract: Improved methods of providing acoustic source signals for seismic surveying, wherein a plurality of signals can be easily separated from one another after data acquisition, wherein the source signals are not sweep based.

Abstract: Prediction and subtraction of multiple diffractions may include transforming previously acquired seismic data from a time-space domain to a transformed domain using a dictionary of compressive basis functions and separating, within the transformed previously acquired seismic data, a first portion and a second portion of the transformed previously acquired seismic data. Prediction and subtraction of multiple diffractions may also include predicting a plurality of multiple diffractions based on the separated first and second portions and adaptively subtracting the predicted multiple diffractions from the previously acquired seismic data. Prediction and subtraction of multiple diffractions may also include inverse transforming a particular seismic data set from the transformed domain to the time-space domain.

Abstract: The invention comprises a method of imaging a volume of the earth's subsurface. A selected volume of the earth's subsurface is divided into a three-dimensional grid of voxels. Seismic signals representing seismic energy emanating from the earth's subsurface and detected by sensors deployed in proximity to said selected subsurface volume and conducted to a recorder for recording. The recorded signals are transformed into a grid of discrete voxel signals representing energy emanating from voxels included in said three-dimensional grid of voxels in the earth's subsurface. A smooth analytic function is defined in three dimensional space based on the grid of discrete voxel signals; and fracture surfaces are derived from the smooth analytic function.

Abstract: The present disclosure is directed to detecting subsurface features via a seismic survey. A system can obtain seismic data from nodes separated from each other by at least a threshold distance on a ground surface. The seismic data can include image trace data based on field trace data detected from each of the plurality of seismic data acquisition units. The system retrieves a sample interval and a parameter. The system configures a bandlimited binning function with the sampling interval and the predetermined parameter. The system applies the bandlimited binning function to a plurality of image traces of the image trace data to generate a bandlimited angle gather value for a bin in an angle gathers grid. The system generates an image based on the angle gathers grid and provides the image for display.

Abstract: Mechanical and elastic rock properties of a subsurface are predicted using actual physical samples from the subsurface as an alternative to wireline data obtained from wells. Geological rock data are generated from a physical geological sample of the subsurface. These geological rock data include elemental data, mineralogical data and textural data for the subsurface. The geological rock data are used in a rock physics model to generate elastic and mechanical rock properties of the subsurface.

Abstract: A method for removing ocean bottom and/or geology related contamination. The method includes receiving first measurements corresponding to first seismic sensors mounted on a first source array; receiving second measurements corresponding to second seismic sensors mounted away from the first source array; processing the second measurements to determine a contamination model related to the ocean bottom and geology; removing the contamination model from the first measurements to obtain cleaned data; and calculating a source signature of the first source array based on the cleaned data.

Abstract: A method, apparatus, and program product model stress characteristics of a subsurface formation based at least in part on acoustic data and image data associated with the subsurface formation. The acoustic data is analyzed to determine acoustic based stress values, and the image data is analyzed to determine image based stress values. The acoustic based stress values and the image based stress values are integrated to generate an integrated stress profile that includes one or more modeled stress characteristics of the subsurface volume.

Abstract: A system and method of for estimating the depth of a marker may include a marker locator. The marker locator may include a first transmitter that generates a first activation signal, second transmitter that generates a second activation signal, a receiver that detects first and second response signals, and a processor that determines a depth of a marker based on the first and second response signals. The first transmitter is located at a first position, and the second transmitter is located at a second position apart from the first position. The first and second response signals respectively correspond to the first and second activation signals. The processor is coupled to the receiver. According to some embodiments, the first and second activation signals and the first and second response signals may be separated by time division multiplexing.

Abstract: In a general aspect, an airborne geophysical prospection device can include a support structure having a surface area of several hundred square meters and an electromagnetic antenna disposed on the support structure. The electromagnetic antenna can have a surface area of several hundred square meters. The electromagnetic antenna can include one or more loops disposed on the support structure. The support structure can be configured to be towed behind an aircraft with a towing cable. The support structure can be supple, deployable under traction and substantially planar after deployment.

Abstract: There is described an improvement of the signal-to-noise ratio of an airborne/ground time-domain electromagnetic apparatus and a measuring/interpretation method for the voltage signal recorded. The system comprises: at least one embedded transmitter-receiver structure with at least one large receiver element allowing low system base frequency excitation and discrimination of targets at depths of at least 1 km; wherein the receiver element is positioned throughout the electromagnetic cavity created by transmitter elements whereas no bucking or suspension means are required; a computer network comprising: a microprocessor, a controller from the microprocessor and a host computer controls transmission of primary magnetic field intensities and reception of secondary magnetic field intensities with least 500 kS/s. A method of interpreting of the voltage recorded by receivers elements based on new sensitivity magnetic kernels is disclosed.

Abstract: A method and apparatus for generating a low distortion sinusoidal signal with controllable amplitude for use with downhole tools, such as an array laterolog. In preferred embodiment, a signal-generating digital-to-analog converter is provided to produce a sinusoidal or other waveform at full scale. An amplitude-controlling digital-to-analog converter provides a voltage reference for the signal-generating digital-to-analog converter. The tandem combination of two digital-to-analog converters allows the generation of low distortion signals, even at low amplitudes. The amplitude-controlling digital-to-analog converter is provided digital codes by the downhole tool system processor. A high-speed dedicated controller provides digital codes to the signal-generating digital-to-analog converter, which relieves the system processor from the intensive task of providing signal generating codes, thereby freeing processor bandwidth for other system tasks.

Abstract: The present specification describes a compact, hand-held probe or device that uses the principle of X-ray backscatter to provide immediate feedback to an operator about the presence of scattering and absorbing materials, items or objects behind concealing barriers irradiated by ionizing radiation, such as X-rays. Feedback is provided in the form of a changing audible tone whereby the pitch or frequency of the tone varies depending on the type of scattering material, item or object. Additionally or alternatively, the operator obtains a visual scan image on a screen by scanning the beam around a suspect area or anomaly.

Abstract: Disclosed is a method and device for estimating weight of an object to be inspected in an inspection system. An effective atomic number and a high-energy gray value of the dual-energy corresponding to each pixel of the object to be inspected are obtained by a dual-energy radiation scanning. A mass-thickness value for a corresponding pixel is obtained from a pre-created mass-thickness attenuation curve by utilizing the effective atomic numbers and the high-energy gray value of the dual-energy for respective pixels. Weight information for at least a part of the object to be inspected is calculated by multiplying the mass-thickness value by the area of the pixel. Such a method may accurately calculate the weight of the object to be inspected and save the cost for a conventional weighing hardware.

Abstract: The present specification discloses a high speed scanning system for scanning cargo carried by rail. The system uses of a two-dimensional X-ray sensor array with, in one embodiment, a cone-beam X-ray geometry. The pulse rate of X-ray source is modulated based on the speed of the moving cargo to allow a distance traveled by the cargo between X-ray pulses to be equal to the width of the detector, for a single energy source, and to half the width of the detector for a dual energy source. This ensures precise timing between the X-ray exposure and the speed of the passing object, and thus accurate scanning of cargo even at high speeds.

Abstract: A method for ascertaining a valve position of a valve of an internal combustion engine having a multiplicity of valves. The method includes illuminating a combustion chamber of the internal combustion engine, detecting light emerging from the illuminated combustion chamber on a side, averted from the combustion chamber, of the valve for ascertainment, and determining the valve position of the valve for ascertainment by way of the detected light.

Abstract: Disclosed is a method of modelling a subsurface volume. History data for one or more parameters over a first period of time is obtained. The first period of time comprises a plurality of schedule periods, each schedule period having associated with it a sampled value of the considered parameter at the corresponding time. A merge error value is attributed to plural pairs of consecutive schedule periods, the merge error value representing a magnitude of the error in a merged value of each parameter over the duration corresponding to a pair of schedule periods being considered, relative to the sampled values for said pair of schedule periods being considered. The pair of schedule periods which have the smallest error value attributed thereto is merged, and the merged schedule period has attributed to it, the corresponding merged value of the corresponding parameter. The error value calculation and merger steps are repeated so as to reduce the total number of schedule periods.

Abstract: The present invention relates to the determination of damage to a geological model (100) comprising a plurality of nodes (200) and a plurality of links (300) each linking two nodes from the plurality of nodes. For each link from the plurality of links, the determination of damage comprises determining a force applied to said link. If the force is greater than a force threshold value, for each node of the two nodes from the plurality of nodes linked together by said link, the determination of damage comprises creating a contact sphere (400) associated with said node, and eliminating the link. Finally, the determination of damage comprises determining a plurality of contacts between spheres comprising at least one contact between spheres, each contact between spheres associating two contact spheres from the plurality of contact spheres.

Abstract: A sensor based system for capturing localized weather data and a server system for communicating with a plurality of reporting and recipient mobile communication devices. The communication devices are enabled to capture additional weather information to supplement the sensor based system.

Abstract: An aircraft expendable instrument, an apparatus for launching an aircraft expendable instrument, and a method for detecting the launch of an aircraft expendable instrument are provided. The aircraft expendable instrument launch system an aircraft expendable instrument, a launch tube, a magnetic field generator positioned in the launch tube, a magnetic field detector positioned in the aircraft expendable instrument, and an electronics electrically coupled to the magnetic field detector. The electronics operable to detect a signal provided by the magnetic field detector when the aircraft expendable instrument an air travels through a magnetic field generated by the magnetic field generator.

Abstract: A polymerizable composition suitable for producing a molding that maintains a high refractive index and a low Abbe's number, discoloration (thermal yellowing) resulting from high thermal hysteresis can be reduced, no Tg and a low CTE are exhibited, and has good mold release properties. A polymerizable composition having: 100 parts by mass of a reactive silicone compound (a) obtained by polycondensation, in the presence of an acid or a base, of a polycondensable compound containing at least a diarylsilicic acid compound A, an alkoxy silicon compound B having a phenyl group or a naphthyl group having at least one group having a polymerizable double bond, and an alkoxy silicon compound C containing a fluoro group; and 1 part by mass to 200 parts by mass of a (meth) acrylate compound (b), and a cured product and material for high refractive index resin lens which are obtained from the polymerizable composition.

Abstract: Provided is an anti-glare/antireflection member having excellent visibility. The anti-glare/antireflection member (1) includes a base material (10) and an antireflection layer (20). The base material (10) is provided in a surface layer thereof with an anti-glare layer (10a) having a concavo-convex configuration. The antireflection layer (20) is provided on the anti-glare layer (10a).