Abstract: Adaptive gyroscope bias compensation allows a vehicle navigation module to estimate position and velocity reliably during temperature changes.

Abstract: A system for monitoring a transportation network includes one or more processors that are configured to determine origin and destination pairs for different vehicle systems formed from different groups of vehicles and traveling in a transportation network formed from interconnected routes, identify the vehicles included in the different vehicle systems, and display different graphical representations of the vehicle systems based on the vehicles included in the vehicle systems on a map of the transportation network that is displayed on a display device.

Abstract: A method for calculating the surface vector of at least one vessel progressing under engine at cruising speed. When the vessel is in a defined position, the parameters of the vessel, including its position, its heading, its speed over ground and its course over ground, are obtained. Wind and/or current measurements in the proximity of the vessel are obtained using a device external to the vessel. The drift vector is determined from wind and/or current measurements. The over-ground vector is determined from the parameters selected from the position, the speed over ground and the course over ground of the vessel. The magnitude and the direction of the surface vector of the vessel is calculated.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: A method and system for creating Bounded Geographic Regions (“BGRs”) in a navigation system using BGRs is presented. Various methods for creating BGRs are disclosed. Additionally, the implications of minimizing the area of a BGR is discussed and disclosed. The method and system allows for easier convergence for creation of BGRs.

Abstract: A navigation method includes: obtaining status information of one or more tires of a vehicle; obtaining road condition information in real time; and performing a route navigation for the vehicle according to the status information, the road condition information, and a preset navigation strategy.

Abstract: Various embodiments coordinate travel among members of a group. In one embodiment, a destination that is common to each user in a plurality of users is identified. An arrival time for the plurality of users to arrive at the destination is determined. The arrival time is common to each user in the plurality of users. A current location of each user in the plurality of users is identified. A departure time is determined, for each user in the plurality of users, for the user to arrive at the destination by the arrival time based on at least the current location of the user. The departure time, for each user in the plurality of users, is transmitted to the user.

Abstract: A navigation system includes: a control unit configured to calculate a non-terrestrial navigation route for guiding a multimodal vehicle during a non-terrestrial travel segment; calculate a ground navigation route for guiding the multimodal vehicle during a ground travel segment beyond a mode-transition point; generate a composite navigation route based on the non-terrestrial navigation route and the ground navigation route for continuously guiding the multimodal vehicle over the non-terrestrial travel segment and the ground travel segment; and an interface unit, coupled to the control unit, configured to communicate the composite navigation route.

Abstract: Disclosed are a method, system, and recording medium for connecting a public transportation route service and a map service. A map providing method includes providing a mode switching function at a first service that provides a public transportation map and a second service that provides a road map, and switching a service mode to the public transportation map or the road map through interconnection between the first service and the second service in response to executing the mode switching function.

Abstract: Embodiments of the present invention provide methods, systems, and computer program products for generating a linear projection of a route. In one embodiment, route information is received and parsed. Supplementary route data is received. A linear route is generated and provided to a user, the linear route comprising a straight line and one or more segments extending form the straight line, where ends of the straight line represent a starting point and destination of the linear route, and the one or more segments represent turns.

Abstract: A method and an apparatus of displaying a point on a map of route guidance includes receiving an entry of a user, determining a point based on the entry of the user, determining an address number of the point, retrieving map data indicating a road segment which includes the address number of the point from map information storage, estimating a position of the location based on the street address number of the point and position data of the road segment, and displaying the point with an icon at the estimated position on the map. While estimating the position of the point, a side of the street at which the point is located is estimated and a shape of the icon graphically indicates a direction corresponding to the side of the street at the estimated position.

Abstract: An approach for a route stabilization scrolling mode is provided. The approach displays a map window, wherein the map window includes a visible region of a map, the map including a plotted route originating at a source location and ending at a destination location. The approach receives one or more swipe gestures within the map window. The approach determines whether the one or more swipe gestures exceeds an escape velocity threshold. Responsive to a determination that the one or more swipe gestures exceeds the level of intensity to progress the map window into an area of the map away from the plotted route, the approach generates one or more custom pegs, wherein the one or more custom pegs is a compressed snapshot of a last position on the plotted route prior to exceeding the escape velocity threshold.

Abstract: An approach for a route stabilization scrolling mode is provided. The approach displays a map window, wherein the map window includes a visible region of a map, the map including a plotted route originating at a source location and ending at a destination location. The approach receives one or more swipe gestures within the map window. The approach determines whether the one or more swipe gestures exceeds an escape velocity threshold. Responsive to a determination that the one or more swipe gestures exceeds the level of intensity to progress the map window into an area of the map away from the plotted route, the approach generates one or more custom pegs, wherein the one or more custom pegs is a compressed snapshot of a last position on the plotted route prior to exceeding the escape velocity threshold.

Abstract: Disclosed is a method and system for providing a route search service based on a public transportation map, such as a subway map, a bus map, a rail map, etc. A route search service providing method includes searching for a route from a departure location to a destination using public transportation in response to a route search request, providing a screen displaying the found route on a public transportation map, determining a movement direction of the public transportation map in response to a user input for changing the found route, moving and providing the public transportation map along the movement direction on the screen, changing the departure location or the destination with a point selected on the moved public transportation map, searching again for the route based on the changed departure location or destination, and changing the screen including the moved public transportation map with a screen displaying the route found through a re-search, on the public transportation map.

Abstract: An event information memory stores an occurrence time of an event so as to cause the occurrence time of the event to correspond to each of monitoring targets in which the events occurred (or are scheduled to occur) among a plurality of the monitoring targets. Based on position information for displaying each of a plurality of monitoring targets on a general view, a controller instructs control to draw an event display image on the general view so as to cause the event display image to correspond to the monitoring target in which the event occurred (or scheduled to occur), the monitoring target being stored in the event information memory. The event display image includes: a circular portion indicating a predetermined time in a circumferential direction, an indicator indicating a current hour or minute, and an event occurrence time display portion caused to correspond to the occurrence time of the event.

Abstract: Systems and methods for attitude fault detection in an inertial measurement unit (IMU) are disclosed. In one embodiment, an avionics system comprises: an IMU configured to produce a calculated pitch solution, a calculated roll solution, or both; a monitor coupled to the IMU and configured to produce an estimated pitch solution, an estimated roll solution, or both; a comparator, wherein the comparator determines the difference between the calculated pitch solution and the estimated pitch solution, the difference between the calculated roll solution and the estimated roll solution, or both; and a display device communicatively coupled to the comparator; wherein the display device receives a warning message from the comparator when the difference between the calculated pitch solution and the estimated pitch solution is greater than a pitch threshold, or when the difference between the calculated roll solution and the estimated roll solution is greater than a roll threshold, or both.

Abstract: Systems and methods for attitude fault detection based on integrated GNSS/inertial hybrid filter residuals are provided. In one embodiment, a fault detection system for aircraft attitude measurement system comprises: a sensor monitor coupled to a first inertial measurement unit, the sensor monitor comprising: a navigation error model for the first inertial measurement unit, the model configured to model a plurality of error states including at least an attitude error state vector, an velocity error state vector, and a position error state vector determined from data generated by the first inertial measurement unit; and a propagator-estimator configured to propagate and update error states based on GNSS data; and a residual evaluator configured to input measurement error residual values generated by the propagator-estimator, wherein the residual evaluator outputs an alert signal when the measurement error residual values exceed a threshold.

Abstract: A method includes generating a first flight management computer (FMC) data request at a data capture component of a control display unit (CDU). The method includes sending the first FMC data request from the data capture component of the CDU to the FMC. The method also includes receiving, at the data capture component of the CDU, first FMC data from the FMC responsive to the first FMC data request. The method further includes sending the first FMC data from the CDU to a portable electronic device via a wireless interface of the CDU.

Abstract: A method for inspecting a physical quantity sensor includes: applying a test drive signal while changing a voltage level, to an angular velocity sensor as a physical quantity sensor having a detection portion which performs detection vibration according to a physical quantity; detecting an output signal from the detection portion corresponding to the test drive signal, as a test detection signal; and performing pass/fail determination based on a change in the test detection signal in relation to the change in the voltage level.

Abstract: A delivery server includes: a reception unit of receiving meter indication data of an existing gas meter and meter indication data of a new gas meter from a mobile terminal; a modification unit causing the new gas meter to be managed as a gas meter to be managed that is installed in a supply facility; and a meter reading processing unit performing a gas meter reading processing for the supply facility, when meter indication data of the new gas meter on a current meter indication date from the mobile terminal after gas meter replacement, on the basis of the received meter indication data, respective meter indication data of the new gas meter and the existing gas meter in the gas meter replacement, and meter indication data of the existing gas meter in the supply facility on a previous meter indication date of earlier than the gas meter replacement.

Abstract: Described embodiments provide a magnetic field sensor has a circular vertical Hall (CVH) sensing element with a plurality of vertical Hall elements disposed over a common implant region in a substrate. The magnetic field sensor generates output signals responsive to a magnetic field generated by a multi-pole magnet having a plurality of north poles and also a plurality of south poles. An angle sensor generates an angle signal representative of an angle of a direction component of the magnetic field. A pole pair counter generates a count signal representative of a count of a number of the pole pairs of the multi-pole magnet that move past the CVH sensing element. An angle interpolation module generates a reconstructed angle signal representative of an angular position of the multi-pole magnet relative to the CVH sensing element based upon the count signal and the angle signal. Corresponding methods are also described.

Abstract: A position sensor for a bearing arrangement is provided. The position sensor includes at least one shaft or bearing ring, an inductive sensor, and a marking ring connected to the at least one shaft or bearing ring. The position sensor includes at least one shaft or bearing ring, an inductive sensor, and a marking ring connected to the at least one shaft or bearing ring. The marking ring is spaced apart from and aligned with the inductive sensor, and includes a non-ferrous body with ferrous material inserts located in the non-ferrous body adapted to pass in proximity to the inductive sensor upon rotation of the marking ring. The inductive sensor detects a rotational angle position of the at least one shaft or bearing ring based on at least one of a size or location of the ferrous material inserts as they pass the inductive sensor.

Abstract: A method for aligning a vehicle with an inductive charging system is characterized by the addition of alignment coils to a secondary coil on the vehicle. For efficient inductive charging, it is necessary that the vehicle mounted secondary coil be aligned with a stationary primary coil of a transformer of the inductive charging system. When the primary coil is energized, it produces a magnetic field which induces a voltage in the alignment coils as a function of the proximity of the alignment coils to the central axis of the primary coil. The voltage differential between opposed pairs of alignment coils is determined by a comparator which then generates a directional signal which can be used by the operator of the vehicle to position the vehicle for closer alignment of the vehicle secondary coil with the primary coil and more efficient charging.

Abstract: A sensor includes a source including an electromagnetic structure generating an electromagnetic near-filed upon receiving energy and a detecting unit including at least one coil arranged in proximity to the source such that the electromagnetic near-filed induces, via an inductive coupling, a current passing through the coil. The sensor also includes a measuring unit for measuring a voltage across the coil and a processor for detecting a presence of a target structure in proximity to the source upon detecting a change in a value of the voltage. The target structure is an electromagnetic structure moving at a distance from the source.

Abstract: A distance measuring device comprises a motor (120), a control box (130) and a code disc (150). Relative rotation occurs between the control box (130) and the code disc (150) driven by the motor. A point position tooth (151A) is comprised on the code disc (150). The control box (130) comprises a distance measuring unit (142), a detection part (144) and a control unit (140). The detection part (144) comprises a light emitter (1440) and a light receiver (1441) which are correspondingly arranged. The control box (130) is rotated relative to the code disc (150), so that the point position tooth (151A) passes through a corresponding position between the light emitter (1440) and the light receiver (1441); the control unit (140) receives the signal output of the light receiver (1441), judges the information on alignment status of the point position tooth (151A) with the corresponding position, and sends a start or stop operation instruction to the distance measuring unit (142) on the basis of the status information.

Abstract: A fiber optic cable system wherein one or more elongate metal strips extend parallel to each other in a longitudinal direction and at least one fiber optic cable is disposed adjacent to each of the one or more elongate metal strips. The at least one fiber optic cable also extends along the longitudinal direction. The one or more elongate metal strips and the at least one fiber optic cable are together encapsulated in an encapsulation, to form an encapsulated fiber optic cable extending in the same longitudinal direction.

Abstract: A proximity sensor includes a body, a coil, a cap being cylindrical and having a bottom, a hollow housing, and a ring-shaped sealing member. The body includes the coil bobbin at a first end. The coil is wound around the coil bobbin. The cap is to be placed to a body so as to cover a coil bobbin. The housing includes, at a fist end, a circular-cylinder portion having an opening. The housing is to be placed to the body in such a manner that the cap protrudes from the opening. The sealing member is disposed between the outer peripheral surface of the cap and the inner peripheral surface of the circular-cylinder portion of the housing.

Abstract: A sensor operates to produce a differential signal with a voltage regulated that generates a regulated voltage to a first sensor element for detecting a physical parameter. A current mirror circuit is configured to provide a first sensor current to the first sensor element, detect the first sensor current at the first sensor element and duplicate the detected current to provide a second sensor current to a second sensor element. The second sensor element detects the physical quantity with the replicated current.

Abstract: A mobile device includes a transceiver coupled to an antenna configured to send wireless signals to and receive wireless signals from a fluid meter that is battery powered that has stored security information. The mobile device includes a processor coupled to the transceiver, a mobile display and a memory device. The memory device stores a fluid meter configuration and data collection (FMCDC) program that is implemented by the processor. The mobile device wirelessly transmits a connection request to the fluid meter. The fluid meter determines whether the connection request satisfies the stored security information. Provided the connection request satisfies the stored security information, the fluid meter transmits a wireless validation signal. Responsive to receiving the wireless validation signal at the mobile device, the mobile device wirelessly writes at least one parameter on the fluid meter or wirelessly reads stored meter data from the fluid meter.

Abstract: A self-rotating flow meter includes a housing, a rotating mechanism and a sensor. The rotating mechanism is disposed in a chamber of the housing between an inlet port and an outlet port. The sensor is disposed in the housing and near the rotating mechanism. The rotation mechanism contains inflow and outflow passages in a rotating shaft and a rotating disk respectively. The inlet flow passage has a centerline that is coincident with or parallel to the centerline of the rotating shaft. The centerline of any outlet flow passage in the rotating disk and the centerline of the rotating shaft are in two different planes and have a distance between them.

Abstract: A differential pressure fluid flow meter element for insertion between the connecting flanges of conduit sections of a fluid carrying conduit includes a flat orifice plate having a fluid contacting region for positioning in a flow of fluid through the conduit and a handle extending outward from an outer portion of the fluid contacting region. The flat orifice plate includes at least one pressure port formed in the fluid contacting region of the plate, and at least one impulse line channel formed in the flat orifice plate and extending from one of the at least one pressure port through the handle to a corresponding transmitter interface port. A plurality of apertures formed in the handle and disposed and arranged relative to the at least one transmitter interface port allow mounting of the process variable transmitter directly to the paddle style orifice plate handle, with the transmitter substantially perpendicular to a plane of the handle.

Abstract: A sensor of a multiphase flow meter is operated to determine a physical property attributable to multiphase fluid flow in a conduit of the multiphase flow meter. A stationarity of the multiphase fluid flow is determined based on the determined physical property in actual conditions compared to expected noise of the sensor in stationary flow conditions. A flow model variable is selected from a plurality of flow model variables based on a gas content of the multiphase fluid flow and the determined stationarity. The multiphase fluid flow is then modeled by adjusting the selected flow model variable.

Abstract: A method for operating a magneto-inductive measuring system, especially a magneto-inductive flow measuring device, in the case of which a magnetic field is produced by a field coil arrangement, through which electrical current flows, wherein the electrical current is a clocked direct current and the field coil arrangement is supplied during a clock interval with a time variable, direct voltage and wherein magnetic energy of the field coil arrangement is determined cyclically or sporadically.

Abstract: What is disclosed is an electromagnetic flowmeter for measuring a flow of liquid in a liquid-carrying line (107) having a magnet (104) for producing a magnetic field (111, 112, 113, 114) in the liquid-carrying line (107) and an electrode pair (103) for discharging an electrical voltage when the liquid flows through the liquid-carrying line (107). The flowmeter according to the disclosure allows the flow of liquid to be determined on the basis of the measured voltage. The magnet (104) can rotate about an axis in order to produce an alternating magnetic field.

Abstract: A magnetic flowmeter for measuring flow of a process fluid in a pipe includes a magnetic coil disposed adjacent to the pipe configured to apply a magnetic field to the process fluid. First and second electrodes are disposed within the pipe and electrically coupled to the process fluid and configured to sense an electromotive force (EMF) induced in the process fluid due to the applied magnetic field and flow of the process fluid. Input circuitry is coupled to the first and second electrodes and provides an output related to the sensed EMF. Diagnostic circuitry coupled to the input circuitry is configured to identify a saturation related condition and responsively provide a diagnostic output. In another embodiment, saturation prevention circuitry prevents saturation of the input circuitry.

Abstract: An ultrasonic flowmeter includes a main body that calculates components parallel to a pipe axis regarding the velocity of fluid on the basis of a first propagation time difference, which is the difference in time between the time that ultrasonic waves transmitted from a second ultrasonic transceiver and the time that ultrasonic waves transmitted from a first ultrasonic transceiver propagate through a first flow propagation path traversing inside the pipe in the radial direction for 2n?1 times (n is a positive integer), and a second propagation time difference, which is the difference in time between the time that ultrasonic waves transmitted from the second ultrasonic transceiver and the time that ultrasonic waves transmitted from the first ultrasonic transceiver propagate through the second flow propagation path traversing inside the pipe in the radial direction for 2m?1 times (m is a positive integer other than n).

Abstract: A method for inferring incident count rates of electromagnetic energy at a detector is provided. In one embodiment, the method includes transmitting electromagnetic radiation through a fluid and receiving a portion of the electromagnetic radiation at a detector. The method also includes measuring the energy spectrum of the portion of the electromagnetic radiation received by the detector and using the measured energy spectrum and a physical model of detector response to electromagnetic radiation to infer incident count rates for discrete energy levels of the portion of the electromagnetic radiation received by the detector. Additional systems, devices, and methods are also disclosed.

Abstract: A pulse-wave ultrasound production well tubing wireline logging method using a logging tool communicating via a wireline to a surface read-out unit, said logging tool provided with a frustoconical ring-shaped linear ultrasound transducer array comprising ultrasound transducer elements, the tool arranged for switching between a PW echo backscatter imaging processing mode and a Doppler measurement processing mode, for transmitting, generating a number of digital signals, and beam-forming said signals to represent ultrasound beams, converting said digital signals to voltage signals, connecting the voltage drive signal channels to oppositely directed consecutive series of said transducer elements, and transmitting wave pulses as said two opposite ultrasound beams (A) and (B) to the fluid in the tubing; and for receiving, receiving returning signals and converting to analogue voltage signals, amplifying the voltage signals, converting them to digital signals and beamforming them, and combining the digital signals

Abstract: Methods and systems for determining lubrication flow dispensed to lubrication points. Lubricant delivery is determined based upon the difference between volume measurements detected as the lubricant is delivered to the lubrication points, and volume measurements detected as the lubricant is vented after delivery. A flow sensor in the lubricant supply line measures lubricant delivered and lubricant vented and a controller determines the amount dispensed based upon the difference between the delivered and vented measurements.

Abstract: A measuring device which has at least a first component, in which an integral measurement duct is provided or the first component forms in connection with additional components a measurement duct integrally in the measuring device. The measurement duct is provided for conducting a measured medium through the measuring device, characterized in that the first component has a first sensor for determining a first thermophysical property selected from thermal conductivity, thermal diffusivity and/or specific heat capacity of the measured medium, and wherein the measuring device has a second sensor, which vibrates and is provided for determining viscosity and/or density of the measured medium. The measured medium is conducted through the measurement duct from the first sensor to the second sensor.

Abstract: A radar-operated level gauge comprising a signal generator for generating and emitting electromagnetic waves of a wavelength and comprising a straight measuring tube, which consists of at least two parts comprising a first measuring tube section and a second measuring tube section, both of which are joined together at a joining point, wherein the joining ends of the first measuring tube section and the second measuring tube section correspond to each other and are cut off at an angle, and that a circumferential end edge of each of the joining ends extends in the longitudinal direction of the measuring tube.

Abstract: An electrode-type liquid level detection device comprises: an electrode unit in which at least two liquid level measurement electrodes, which are used to detect a liquid level, and a calibration electrode, which is not used to detect the liquid level, are integrated; a record unit that records a pre-use resistance value of each electrode of the electrode unit as initial resistance value; a calculation unit that calculates a resistance value of a to-be-measured object based on the initial resistance value; and a control unit that controls in such a way as to adjust a threshold value for determining whether or not the to-be-measured object exists, based on a change in resistance values of the at least two liquid level measurement electrodes when in use. Therefore, the liquid level can be accurately detected corresponding to deterioration of the instrument.

Abstract: The system and method combine a large population of varying density pieces into sets that meet a specified target weight range. This is accomplished by creating a sample size of a pre-weighed payload of varying density pieces (“pieces”) for an automated system to determine optimal combinations sets based on piece weight data. The system combines pieces into the sets within a fixed weight tolerance. Significant hurdles overcome with this approach include avoiding damage to the fragile pieces, accurate measuring very low weights. All of this is achieved at extremely high speed and precision.

Abstract: As a weighing device which can not only make water and dust less likely to reach the sensor unit, but also simply discharge water having reached that position if any, and which further can improve the maintenance workability of water-washing of the sensor unit, an electronic balance includes a weighing pan, a load cell that measures a load of a measuring object placed on the weighing pan, and a scale main body case that supports the load cell. The load cell is disposed outside and over the scale main body case, a cylindrical transparent cover that covers the whole side face of the load cell is integrally provided for the weighing pan, and the lower end of the transparent cover is disposed with a clearance over an upper face of the scale main body case.

Abstract: A method of operating an apparatus for analysing the condition of a machine having a part rotating with a speed of rotation, includes receiving a first digital signal dependent on mechanical vibrations emanating from rotation of the part, analyzing the first digital signal so as to detect peak amplitude values during a finite time period, the finite time period corresponding to a certain amount of revolution of the part, the certain amount of revolution corresponding to more than one revolution of the monitored rotatable part, defining amplitude ranges, sorting the detected peak amplitude values into corresponding amplitude ranges so as to reflect occurrence of detected peak amplitude values within the plurality of amplitude ranges, and estimating a representative peak amplitude value in dependence on the sorted peak amplitude values and the certain amount.

Abstract: A device and method for sensing including a sensor having a functional surface layer located to interact with a material to be sensed, the sensor having an output that produces a signal responsive one or more of inertia, stiffness, acceleration, pressure, radiation, chemical compounds, and biological compounds; and further including electronics including: an input coupled to the sensor to receive a first signal therefrom; and a non-linearity provider that applies one or more non-linear operations to the input signal to generate a non-linear second signal.

Abstract: A light converter for a light source is disclosed, having a substrate and a light converting layer disposed thereon for receiving laser radiation and converting the same into visible light. A sensor is functionally integrated with the light converting layer for purposes of detecting the condition of the light converting layer and modifying an operation of the laser radiation source in response thereto.

Abstract: A measuring apparatus includes a light source unit configured to generate probe light, a bifurcating unit configured to cause Brillouin backscattered light occurring from the probe light to bifurcate into first light, which propagates through a first optical path, and second light, which propagates through a second optical path, a delay unit configured to delay one of the first light and the second light, an optical multiplexer configured to multiplex the first light and the second light to generate multiplexed light, and a coherent detector configured to perform homodyne detection of the multiplexed light and to output a difference frequency obtained as a result of the detection as a phase-difference signal.

Abstract: A photosensor is provided with a sensor circuit assembly. The sensor circuit assembly includes alight emitter, a light receiver, a light-emitter support, a light-receiver support, and a connecting part. The light emitter and the light receiver face each other. The light-emitter support extends from and supports the light emitter. The light-receiver support extends from and supports the light receiver. The connecting part connects one end of the light-emitter support with one end of the light-receiver support. The connecting part includes a seal and a connection terminal that protrudes from the seal. The connection terminal includes a first press-contact part, and a first pressure part that presses the first press-contact part in a press-contact direction.

Abstract: A process for improving sensitivity of a film base, coated with a dispersion of a normally crystalline polyacetylenic compound in a non-solvating liquid which is dried on the film surface, to particular photon energy band, specifically, long wavelength UV; the polyacetylenic compound preferably having at least two conjugated acetylenic linkages and containing from 12 to 60 carbon atoms. The sensitization of the film to long wavelength UV is achieved via the addition of photoinitiator(s) capable of absorbing UV energy and converting it to free radicals.