Abstract: A method for registering a location of a device with a floor plan of an indoor space determines a portion of the floor plan specifying a coarse location of the device using strength of WiFi signals received from at least three access points (APs). The location of each AP is registered with the floor plan. The method determines at least one distance between the device and at least one object registered with the floor plan using a time-of-flight of at least one acoustic signal and registers the location of the device within the portion of the floor plan at the distance from the object.

Abstract: An image ranging system has a light source module having a light source diode and a light source lens, and an image sensing module, placed near the light source, having an image sensing device and an image sensing lens. An optical signal emitted from the light source diode passes through the light source lens with a luminous intensity profile which is characterized by intensity I1 and then reaches an object. A reflection signal is generated by the object. The relationship between the intensity I1 and the emission angle ? of the optical signal is I1=1/cos7 ?. The reflection signal into the image source lens has an incident angle ? the same as the emission angle of the optical signal, and images the object onto the image sensing device. The ratio of the height of object image to the effective focal length of image sensing lens is proportional to sin 0.

Abstract: The invention provides a surveying system, which comprises a surveying instrument, wherein the surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from the object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of the distance measuring light and for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the measuring unit and for detecting a tilt angle with respect to the horizontal of the measuring unit, a coordinates acquiring unit for detecting a position of the surveying instrument and an arithmetic processing unit, wherein a first image of the object to be measured is acquired by the image pickup unit from a first position where coordinates of the first position are acquired by the coordinates acquiring unit, a second i

Abstract: A method of operating a depth sensor includes generating a first photo gate signal and second through fourth photo gate signals respectively having 90-, 180- and 270-degree phase differences from the first photo gate signal, applying the first photo gate signal and the third photo gate signal to a first row of a pixel array and the second photo gate signal and the fourth photo gate signal to a second row adjacent to the first row in a first frame using a first clock signal, and applying the first photo gate signal and the third photo gate signal to a first column of the pixel array and the second photo gate signal and the fourth photo gate signal to a second column adjacent to the first column in a second frame using a second clock signal.

Abstract: The present disclosure provides a differential positioning method based on an intelligent vehicle infrastructure cooperative system and the intelligent vehicle infrastructure cooperative system. The system includes: a road side unit for obtaining a differential positioning correction parameter and broadcasting the differential positioning correction parameter to an on board unit within a preset range; and the on board unit for obtaining original positioning data of the on board unit, and correcting the original positioning data based on the differential positioning correction parameter to obtain final positioning data of the on board unit.

Abstract: A method of advanced receiver autonomous integrity monitoring of a navigation system is discussed and two modifications facilitating its implementation in a hybrid navigation system are disclosed. In the first approach, relations describing the effect of unmodeled biases in pseudo-measurement on the Kalman filter state estimate are analytically derived and their incorporation into the integrity monitoring algorithm is described. The method comprises receiving a plurality of signals transmitted from space-based satellites, determining a position full-solution and sub-solutions, specifying a pseudorange bias, computing a transformation matrix for the full-solution and all sub-solutions using a Kalman filter, computing a bias effect on an error of filtered state vectors of all sub-solutions, and adding the effect to computed vertical and horizontal protection levels.

Abstract: An observation data screening unit (103) executes least squares method positioning using, as an observation amount, n (n is an integer of 3 or larger) number of single difference amounts of an L1-wave pseudorange obtained from n pieces of observation data from n number of positioning satellites and n pieces of correction data corresponding to the n pieces of the observation data. The observation data screening unit (103) calculates a sum of squares of n residuals obtained for each positioning satellite by executing the least squares method positioning and normalizes the n residuals. The observation data screening unit (103) then evaluates the sum of squares of the residuals and the n normalized residuals.

Abstract: A method of determining location of a user device includes receiving global navigation satellite system (GNSS) fix data that represents GNSS calculated position of the user device. The method further includes receiving signal strength data associated with each satellite communicating with the user device, and receiving map information regarding environment surrounding the user device. The received GNSS fix data and signal strength data is provided to a non-linear filter, wherein the non-linear filter fuses the GNSS fix data and signal strength data to generate an updated position estimate of the user device. In addition, the non-linear filter utilizes probabilistic shadow matching estimates that represent a likelihood of received signal strength data as a function of hypothesized user device locations within the environment described by the received map information.

Abstract: A mobile device may use one or more outlier detectors to detect likelihoods that an outlier condition exists for a satellite positioning system (SPS) position fix. In some implementations, a method may comprise checking a position fix of a SPS receiver for consistency with assistance data used to generate a position fix. The method may further comprise determining whether to generate a new position fix using less than all of the assistance data based, at least in part, on results of the checking of the position fix.

Abstract: A method of detecting an unknown signal and estimating a source location of the unknown signal using aircraft based on an automatic dependent surveillance-broadcast (ADS-B) system is provided. The method includes a first step (S100?) for obtaining from a plurality of airborne aircrafts provided with a network system, an aircraft signal transmitted to neighboring aircraft. The method further includes a second step (S200?) for detecting, by one of the plurality of aircraft, a presence of the unknown signal in the aircraft signal based on one of a time difference of arrival (TDOA) method, a time of arrival (TOA) method, and an angle of arrival (AOA) method. The method further includes a third step (S300?) for estimating the source location of the unknown signal and a fourth step (S400?) for transmitting unknown signal generation information and the source to neighboring aircraft and the ATC through a flight information services-broadcast (FIS-B).

Abstract: A gamma ray detector includes a gamma ray detecting rod elongated along a longitudinal axis, wherein gamma ray detection is enhanced along the longitudinal axis, and a gamma ray shield encapsulating the rod, the shield having an aperture at an end of the detecting rod along the longitudinal axis to admit gamma rays substantially parallel to the longitudinal axis of the elongated detecting rod, wherein gamma ray detection is enhanced along the longitudinal axis and aperture to substantially collimate the sensitivity of the gamma ray detector along the combined aperture and longitudinal axis of the detecting rod.

Abstract: Provided is a technique that reduces patterning defects of data lines in an imaging panel and drain electrodes in thin film transistors without lowering the aperture ratio of the imaging panel. The imaging panel captures scintillation light, which are X-rays that have passed through a specimen and been converted by a scintillator. The imaging panel includes a plurality of gate lines 11 and a plurality of data lines 12. The imaging panel includes, in each of the pixels 13, a conversion element 15 that converts scintillation light to electric charge, and a thin film transistor 14 connected to the gate line 11, data line 12, and conversion element 15. A drain electrode 144 of the thin film transistor 14 is formed such that edges 144E1 and 144E2 of the drain electrode 144 near the data line 12 are more inside the pixel 13 than edges 15E1 and 15E2 of the conversion element 15 near the data line 12.

Abstract: Embodiments of the present disclosure relate to a scintillator array including a reflector disposed between the scintillator pixels, and methods of forming the scintillator array and radiation detector. In an embodiment, the reflector can be used in the scintillator array without an adhesive. In another embodiment, the reflector can be disposed in a zigzag pattern between the scintillator pixels.

Abstract: A device has planar components forming part of a stack on a support frame, such as a substrate and upper layer, for example a fiber optic scintillator/fiber optic plate, bonded together by an adhesive layer of well-defined thickness. The device is made by providing a trench in a peripheral recess extending in a marginal portion of the support frame. Excess adhesive is applied to one of the planar components, which are then brought together such that the adhesive layer of well-defined thickness is formed between the two components and surplus adhesive is collected in the trench.

Abstract: A system and method for detecting underground inhomogeneities, the system including at least one transmitting transducer arranged to transmit pre-selected acoustic signals of at least 2 Watts into the ground; at least three receiving transducers disposed at a selected distance from the transmitting transducer and arranged to receive acoustic signals transmitted by the transmitting transducer and reflected by an inhomogeneity in the ground, one of the receiving transducers being disposed in proximity to the transmitting transducer; and a processor; each receiving transducer being coupled to the processor and arranged to transfer the received signals to the processor; the processor configured to process the received reflected acoustic signals and determine, from characteristics of the signals and from the selected distance between the transmitting transducer and the receiving transducer, at least one of: the existence of an underground inhomogeneity; the distance from the receiving transducer to the underground

Abstract: A method for performing a seismic survey using at least one carrier which includes a seismic source. The method includes: deploying each of the at least one carriers by the delivery vehicle, wherein each of the at least one carriers includes: a plurality of supports configured to enable a baseplate to contact ground, wherein the baseplate is formed by each foot of the plurality of supports; a seismic source which includes a lower portion configured to push through unconsolidated materials and configured to contact the ground; and a power source configured to operate the seismic source; and transmitting at least one seismic signal from the seismic source.

Abstract: Computing device, computer instructions and method for determining an image of a surveyed subsurface. The method includes receiving recorded wave fields D recorded with seismic sensors over the subsurface; generating a series of modified recorded wave fields Dn based on the recorded wave fields D; iteratively applying an objective function Fi to (1) one element Di of the series of modified recorded wave fields Dn and (2) predicted wave fields Pmi, where “i” is an index associated with a given iteration; calculating with a computing device an updated velocity model mi+1 based on a previous velocity model mi and a step length; and producing the image of the subsurface based on the recorded wave fields D and the updated velocity model mi+1. The predicted wave fields Pmi are predicted by the previous velocity model mi.

Abstract: In some aspects, a stimulated reservoir volume (SRV) parameter for a stimulation treatment applied to a subterranean region is identified. A parameter of a fracture-plane network generated by application of the stimulation treatment is identified. A correlation between the SRV parameter and the fracture-plane network parameter is identified. In some implementations, the SRV and the fracture-plane network are computed based on microseismic event data associated with the stimulation treatment.

Abstract: The present disclosure provides a prestack separating method for a seismic wave, including: receiving P-wave, S1-wave and S2-wave of the seismic wave, wherein the P-wave, S1-wave and S2-wave are reflected from different points; projecting the P-wave, S1-wave and S2-wave into a Z-R-T coordinate system, so as to generate a projection matrix, wherein Z is a vertical component, R is a component of a source-to-receiver azimuth and T is a component orthogonal to the R component; forming vectors of the P-wave, S1-wave and S2-wave as a composite vector; transforming the composite vector to an anisotropic wave vector matrix according to base vectors on the vector directions of the P-wave, S1-wave and S2-wave; and performing a rotation transformation of an affine coordinate system on the anisotropic wave vector matrix to generate a wave separation matrix, thereby solving a problem of error prediction result of fracture parameters caused by the “mode leakage” phenomenon.

Abstract: Predicting downhole acoustic tool responses due to stress-induced anisotropy by performing at least the following: receiving a plurality of input data corresponding to at least one well site comprising a wellbore; constructing a three-dimensional geomechanical model based at least in part on the input data; creating at least one near field versus far field stress distribution that corresponds to the wellbore from the three-dimensional geomechanical model; creating, at least one near wellbore versus far-field velocity distribution using the at least one near field versus far field stress distribution; comparing the downhole acoustic tool response property that indicates a downhole acoustic tool's penetration depth for a subsurface geological formation with the near-wellbore velocity fields; and flagging, where the downhole acoustic tool response property stays within the near-wellbore velocity field.

Abstract: This disclosure is directed to utility locating systems, devices, and methods using frequency suites of simultaneously processed signals emitted from buried utilities to locate the buried utilities or other hidden or buried conductors.

Abstract: Apparatus, systems, and methods are disclosed for utility locating with tracking of movement over the ground or other surfaces using a dodecahedral antenna array and a stereo-optical ground tracker having two or more spaced apart cameras and an associated processing element to detect ground features in images from the cameras and determine tracking parameters based on the position of the detected ground features.

Abstract: Sondes and sonde arrays for use with portable buried object locating systems are disclosed.

Abstract: Buried object locator systems including transmitters and associated buried object locators using phase-synchronized signals are disclosed. A transmitter may generate output current signals that are phase-synchronized with a corresponding locator for improved utility locating.

Abstract: An imaging locating device includes a first locating apparatus, a position sensor, and an evaluation apparatus. The first locating apparatus is configured to detect locating data in relation to objects to be located. The objects are concealed under an examination surface. The position sensor is configured to detect position data of the locating device in relation to the examination surface. The evaluation apparatus is configured to determine a first at least two-dimensional map information items by assigning the locating data of a first category from the first locating apparatus to the position data. The evaluation data is further configured to determine at least one further at least two-dimensional map information item. The at least one further at least two-dimensional map information item differs from the first at least two-dimensional map information item.

Abstract: Systems, methods, and devices for evaluation of an earth formation intersected by a borehole using a logging tool. Methods include generating an excitation in the formation with an electromagnetic (EM) signal from a transmitter assembly at at least one frequency; making EM measurements using an EM tool on a tool string in the borehole by receiving a signal at at least one receiver assembly responsive to the excitation; wherein the at least one receiver assembly includes an induction antenna comprising a first winding and a second winding that share a common center tap, and wherein the average potential on the induction antenna is substantially the same as a ground potential. The receiver assembly or transmitter assembly may comprise a receiver or transmitter electrically connected to the induction antenna by a balun transformer, and a capacitive shield encompassing the induction antenna, the capacitive shield comprising a meander shaped isolation gap.

Abstract: The present specification discloses systems for a compact and portable X-ray transmission imaging system that is used for security inspection of small items. The system includes a housing with an X-ray tunnel for receiving an article to be inspected, a conveyor for conveying the article through the tunnel, a dual source X-ray system, with a central target, for generating two overlapping cone beams, and a two-dimensional X-ray detector system for detecting the generated dual energy X-rays.

Abstract: An apparatus for determining density of fluid returning from a wellbore (“return fluid”) during drilling of the wellbore being drilled using a drill string having a drill bit at an end thereof is disclosed. The apparatus in one embodiment includes a first nucleonic densitometer placed on outside of a return line carrying the return fluid from the wellbore that includes drilling fluid supplied to the drill string and cuttings cut by the drill bit during drilling of the wellbore and a processor that determines the density the return fluid from measurements provided by first nucleonic densitometer.

Abstract: An optical computing device comprising a plurality of electromagnetic radiation sources, each at a unique angular displacement about an optical train and each at at least one unique electromagnetic radiation wavelength; an integrated computational element (ICE) located in the optical train before or after a sample located in the optical train to generate modified electromagnetic radiation in the optical train; a broadband angle-selective filter (BASF) located in the optical train that is rotatable about an axis to a plurality of unique orientations to transmit the electromagnetic radiation and/or the modified electromagnetic radiation in the optical train at a target incident angle corresponding to one of the plurality of electromagnetic radiation sources to generate angle selected-modified electromagnetic radiation (ASMR); and a detector to receive the ASMR and to generate an output signal corresponding to a characteristic of the sample.

Abstract: A system includes distributed sensors and a receiver that receives signals from the distributed sensors and that produces one or more interferometry signals from the received signals. The system also includes a digitizer to digitize each of the one or more interferometry signals. The system also includes at least one processing unit that processes each digitized interferometry signal to obtain unwrapped phase information and related parameter values. The unwrapped phase information is obtained based on a comparison of a current phase measurement with a reference phase predicted using a dynamic phase change model.

Abstract: A pop-up monitoring base station for seafloor heat flow includes a recovery unit, a discarding unit and a cable chopping mechanism. The recovery unit includes a recovery support, internally accommodating two acoustic release devices provided with closable hooks on bottoms thereof and loaded with floating balls. The discarding unit includes a discarding support, below which a heat flow probe is fixedly connected. The recovery unit and the discarding unit are fixed together through a steel wire rope with two ends connected with the closable hooks at the bottoms of the acoustic release devices. A cable extends from the discarding unit through the cable chopping mechanism fixed on the bottom of the recovery support and connects with the floating balls. The cable can be chopped off and/or pulled out automatically to realize successful separation between the recovery unit and the discarding unit.

Abstract: An embodiment of a system for estimating a parameter of an earth formation includes at least one formation parameter sensor disposed at a first downhole component and configured to measure a parameter of an earth formation to generate formation parameter data, and one or more processors in operable communication with the at least one formation parameter sensor. The one or more processors are configured to perform: generating a mechanics model of at least one of the first downhole component and a second downhole component, the mechanics model based on geometrical data representing at least one of the first downhole component and the second downhole component; estimating a misalignment of the at least one formation parameter sensor by using the mechanics model; and correcting the formation parameter data based on the misalignment.

Abstract: Disclosed is a method of modelling a subsurface volume.

Abstract: A computer implemented method for predicting localised weather for a location of interest using a plurality of different sources of weather variables associated with the location of interest, including multiple sources of weather observation variables and multiple sources of weather forecast variables, the method comprising: repeatedly retrieving using a computer processor weather observation variables and weather forecast variables from the identified plurality of different sources over time; storing the captured weather observation variables and weather forecast variables in a memory as a function of time; identifying using the computer processor specific observation variables and specific forecast variables from the stored variables for each specific weather variable that has to be predicted, wherein the weather variable to be predicted includes a specified time; and building using the computer processor and the identified specific observation variables and identified specific forecast variables a predicti

Abstract: An anti-reflection coating having an three-layer structure comprising first to third layers formed in this order on a substrate, the substrate having a refractive index of 1.6-1.9, the first layer having a refractive index of 1.37-1.57, the second layer having a refractive index of 1.75-2.5, and the third layer having a refractive index of 1.18-1.32, to light in a wavelength range of 550 nm; the third layer being formed by silica aerogel; and the first and second layers containing no Al2O3.

Abstract: A method for creating a nanostructure in a transparent substrate, including a) applying a first structure carrier layer having a defined thickness onto at least one surface of the substrate; b) forming a nanostructure in the first structure carrier layer; and c) oxidizing the first structure carrier layer.

Abstract: A spectacle lens exhibiting excellent weather resistance and a method for manufacturing the same. In the spectacle lens and the method for manufacturing the same, the spectacle lens includes a lens substrate having a refractive index of from 1.58 to 1.74 and a hard coat layer that is obtained by curing a mixture containing silica particles and a silane compound and has a refractive index of from 1.49 to 1.51.

Abstract: Provided is a resin film, etc. not having the film strength thereof being easily degraded, even when an additive is used. Further, provided is a resin film, etc. having a lower reflectivity. A low refractive index layer (the resin film) comprises a binder. Further, the low refractive index layer comprises hollow particles distributed in the binder. Further, the low refractive index layer comprises a fluorine-containing polymer which is immiscible with the hollow particles. The fluorine-containing polymer which is immiscible with the hollow particles is mostly distributed on the surface of the low refractive index layer.

Abstract: A lens array fabrication method for fabricating a lens array includes: receiving pins (16) of a film attaching instrument (jig) in second guide holes (10) of a film-containing base plate; bonding a placement area and an adhesion layer (F); removing the pins (16); causing a detachment between a first detachment film (C) and a pressure-sensitive adhesive optical film (D); separating three layers (D) to (F) from two layers (B) and (C); receiving the pins (16) in first guide holes (7) of a lens array main unit; fitting a film holding protrusion (15) in a depression part (6); bonding the film (D) to a bonding region (i); removing the pins (16); and causing a detachment between the film (D) and a second detachment film (E).

Abstract: The prism, which is used particularly for optical data communication by means of a modulated light beam, is furnished with a transmissive prism body (60) which has two triangular first side faces (69) on its outer side and a base surface (77) therebetween, and two second side faces rising up from the base surface and inclined toward one another as light incidence and light exit faces (74, 76). The two second side faces (74, 76) are inclined oppositely, relative to an axis (79) running parallel to the base surface (77) and penetrating the planes in which the first side faces (69) lie, and each run at an acute angle (78, 80) to the axis (79) such that reflection radiation is reflected to the side.

Abstract: A marker composition and a package using same. The marker composition can include retroreflective particles and a dispersion medium, the blending ratio of the retroreflective particles being from 50 to 90 mass % on the basis of the total marker composition.

Abstract: The present invention aims to provide a retroreflective material that exhibits high reflective luminance for incident light with a large incident angle, and has excellent retroreflective performance for incident light with a wide incident angle. A retroreflective material includes a support, a fixing resin layer held on the support, transparent microspheres embedded in the fixing resin layer, and a reflective layer provided between the transparent microspheres and the fixing resin layer. In the retroreflective material, the transparent microspheres used have a refractive index of 1.6 to 2.5, and are exposed in air with an exposure ratio of 53 to 70%. The retroreflective material can thus have excellent retroreflective performance for incident light with a wide incident angle.

Abstract: Retroreflective articles include a layer of optical elements, and a bead bond layer (140). The optical elements include transparent microspheres (110), a transparent polymeric polyurethane layer (120), and at least one reflective layer (130), where the transparent polymeric polyurethane layer (120) comprises a dried layer prepared from an aqueous polyurethane dispersion. The retroreflective articles have improved wash durability.

Abstract: An object of the invention is to provide an optical film having thermochromic properties capable of regulating the near-infrared shield factor depending on the temperature environment, having a low haze value, and having excellent cracking resistance and adhesiveness even if put to use for an extended period of time, and a method for manufacturing the optical film. The optical film of the invention includes, on a transparent substrate, an optically functional layer containing at least vanadium dioxide-containing fine particles and a binder resin, wherein the number average particle size of all the particles including primary particles and secondary particles of the vanadium dioxide-containing fine particles in the optically functional layer is less than 200 nm.

Abstract: A solar-radiation-shielding material for vehicle windows reduces the visible light transmittance, and reduces the value of solar radiation transmittance/visible light transmittance. The visible light transmittance of the solar-radiation-shielding material is in the range of 5%. The transmission color of the solar-radiation-shielding material satisfies the Expression 2: ?14<a*<2, and ?8<b*<2.

Abstract: A color filter comprising a cured layer of a photosensitive resist composition comprising a highly reactive polyacrylate monomer and a process for the preparation thereof are provided. The color filter is especially useful for low temperature applications such as electrophoretic displays, polymer dispersed liquid crystal displays, OLED devices and the like.

Abstract: The present invention relates to a method for manufacturing a polarizing plate, the method including: preparing a polarizing plate where a protection film is laminated on one surface of a polyvinyl alcohol-based polarizer dyed with at least one or more of iodine and dichromatic dyes; and forming a depolarization region having single transmittance of 80% or more at a wavelength band in a range of 400 nm to 800 nm by bringing a decoloring solution including 1 to 30 wt % of a decolorant into local contact with the other surface of the polarizer, and a polarizing plate manufactured by using the same.

Abstract: A long polarizing film laminate capable of producing a polarizer that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, that shows no variation in quality when provided as a final product, and that is excellent in yield in its production. A polarizing film laminate according to an embodiment of the present invention includes: a long polarizer; and a surface protective film arranged on one surface side of the polarizer. The polarizing film laminate has, on the one surface side, exposed portions where the polarizer is exposed. The exposed portions are arranged in a lengthwise direction and/or a widthwise direction of the polarizer at predetermined intervals.

Abstract: The present invention provides an ultra thin polarizing plate comprising a polarizer, a protective film formed on one surface of the polarizer, and an adhesive layer formed on the other surface of the polarizer, wherein the protective film has a resisting force of 2.1 to 18.7 N, and a liquid crystal display device having the ultra thin polarizing plate. The ultra thin polarizing plate according to the present invention can inhibit curl occurrence to prevent bonding defects by the curl in the process that the polarizing plate is bonded to a liquid crystal cell, and can make the thickness of the protective film thin, and therefore it can be effectively used in a flexible display.

Abstract: A long polarizer that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, that shows no variation in quality when provided as a final product, and that is excellent in yield in its production. A polarizer including a long resin film containing a dichromatic substance, the polarizer having non-polarization portions arranged in a lengthwise direction and/or a widthwise direction at predetermined intervals, the non-polarization portions including decolored portions formed through partial decoloring.