Abstract: The present invention relates to a normal incidence ellipsometer and a method for measuring the optical properties of a sample by using same. The purpose of the present invention is to provide: a normal incidence ellipsometer in which a wavelength-dependent compensator is replaced with a wavelength-independent linear polarizer such that equipment calibration procedures are simplified while a measurement wavelength range expansion can be easily implemented; and a method for measuring the optical properties of a sample by using same.

Abstract: A compact, low power cryo-cooler for cryogenic systems capable of cooling gas to at least as low as 2.5 K. The cryo-cooler has a room temperature compressor followed by filtration. Within the cryostat, four counterflow heat exchangers precool the incoming high-pressure gas using the outflowing low-pressure gas. The three warmest heat exchangers are successively heat sunk to three stages of a pulse tube to absorb residual heat from the slight ineffectiveness of the heat exchangers. The pulse tube cold head also absorbs loads from instrumentation leads and radiation loads. The pulse tube stages operate at around 80 K, 25 K, and 10 K. The entire system—cryo-cooler, drive and control electronics, and detector instrumentation, fits in a standard electronics rack mount enclosure, and requires around 300 W or less of power.

Abstract: The present disclosure is related to a system and a method for 3D shape measurement of a freeform surface based on high-speed deflectometry using composite patterns. More particularly, a system for profile measurement based on high-speed deflectometry using composite patterns includes: a composite pattern generation part to project a composite pattern generated by synthesizing patterns having different frequencies to a measurement object; a detector to acquire images of a deformed composite pattern reflected from the measurement object; and a phase acquisition part to acquire wrapped phases by each frequency from the composite pattern and unwrapped phases from the respective wrapped phases.

Abstract: A mechanized store uses a mobile device to authenticate the user. Items removed from one or more displays of the mechanized store by the user are tracked and a list of items removed by the user is updated. The list of items removed is linked with an account of the user.

Abstract: The present invention provides, in a first aspect, an electrical generation system which includes an electrolyzer and a fuel cell system. The electrolyzer is coupled to a source of water and a power source. The electrolyzer is configured to generate oxygen and hydrogen utilizing water from the water source and electrical power from the power source. The fuel cell system is coupled to the electrolyzer to receive a flow of the hydrogen from the electrolyzer at an anode thereof. The fuel cell system includes a cathode having a cathode chamber coupled to a source of ambient air. The cathode chamber is coupled to the electrolyzer to selectively allow a flow of the oxygen from the electrolyzer to the cathode chamber and to selectively allow a flow of air from the source of ambient air to the cathode chamber. The fuel cell system is configured to generate electricity in a fuel cell reaction utilizing the hydrogen and the oxygen.

Abstract: A system for sensing a physical property of a medium inside a conduit includes a radio frequency identification (RFID) reader arranged to transmit electromagnetic signals in at least one radio frequency. An RFID tag receives the least one radio frequency and exchanges the received radio frequency to electrical energy powering the RFID tag. An included sensor electrically connected to the RFID tag receives the electrical energy from the RFID tag and powers the sensor to obtain measurement data of at least one physical property of the medium and transmit the measurement data to the RFID tag. The RFID tag transmits the measurement data to the RFID reader using the at least one radio frequency.

Abstract: An extrusion apparatus includes a diagnostic system with a material processing section and an extruder screw disposed for rotation in a barrel and surrounded by a shroud assembly. The apparatus includes a temperature control system with heater sand cooler. The apparatus includes a speed control apparatus that has a drive unit and a speed variation device that is coupled to the extruder screw. The apparatus includes a diagnostic system in communication with the material processing section and/or the speed control apparatus. The diagnostic system includes a sensor system in communication with the material processing section and/or the speed control apparatus; and a computer processor in communication with the sensor system and a computer. The computer processor includes a computer readable medium that employs one or more algorithms and that are executable by the computer to generate signals characterizing performance of the material processing section and/or the speed control apparatus.

Abstract: Provided is a method of preparing composite nanoparticles, which includes: a) preparing a metal nanocore having a nano-star shape from a first reaction solution in which a first metal precursor is mixed with a first buffer solution; b) fixing a Raman reporter in the metal nanocore; and c) forming a metal shell, which surrounds the nanocore in which the Raman reporter is fixed, from a second reaction solution in which the nanocore in which the Raman reporter is fixed, and a second metal precursor are mixed with a second buffer solution.

Abstract: A collar and shaft assembly utilizing a ring and a multi-stepped groove. The multi-stepped groove permits the ring to be compressed into one groove while the collar is being assembled and then to expand into a different groove that permits the ring to contact surfaces on both the collar and the shaft.

Abstract: The present invention relates to an apparatus and a method for measuring a thickness and a refractive index of a multilayer thin film using an angle-resolved spectral interference image according to polarization.

Abstract: A soot sensing system includes a soot sensor having a first element, and circuitry to an amount of soot accumulated on the element and to control heating of the element in response to the soot accumulation. An electrostatic repelling voltage (ERV) may be applied to a sensor/heater element(s) during a contamination prevention mode (CPM) to repel ash and reduce contamination of the sensor. A pulsed heating voltage (PHV) may be applied to the elements during the CPM and a pulsed ERV may be applied to the elements during the “off” period of the PHV. All voltage to the elements may be turned off during the CPM and the elements may be floating/ground. A PHV may be applied to the elements during the CPM and no voltage may be applied to the elements during the “off” period of the PHV. A heating voltage may be applied to the elements during a CPM corresponding to a cold start.

Abstract: A vaccine spray equipment includes a frame, a conveying device, a spray device and two liquid supply devices. The conveying device is disposed on the frame, and is configured to support and convey a chick frame. The spray device is provided on the frame and includes two rows of spray heads provided along the conveying direction perpendicular to the conveying device, the two rows of spray heads are provided side by side above the conveying device. The two liquid supply devices are provided on the frame. The two liquid supply devices are respectively connected to the two rows of spray heads in a one-to-one correspondence, and each of the liquid supply devices is configured to provide the spray device with vaccine suspension liquid.

Abstract: A system for preventing unwanted tissue migration in surgical staplers includes a surgical stapler having an end effector including an upper jaw and a lower jaw. A distal end of the upper jaw is connected to a distal end of the lower jaw, and a proximal end of the upper jaw is connected to a proximal end of the lower jaw. First and second tissue stops are formed on the distal and proximal ends of the lower jaw, respectively. The second tissue stop and the proximal end of the upper jaw define a no cut zone when the surgical stapler is in an open position. The surgical stapler also includes a tissue cutting device disposed within the lower jaw for resecting tissue. The system also includes a warning, blocking, impeding, or barrier forming device for preventing the unwanted migration of tissue into the no tissue zone.

Abstract: The present invention relates to a guide rail, a device and a method for the manufacture thereof. This rail (1) is remarkable in that it is made from an injected plastic material and in that it comprises at least one portion having the shape of a tubular profile (10) longitudinally split over at least one portion of its length, this rail able to be straight or curved in the shape of an arc of a circle.

Abstract: A method and system for detecting a target component by using a mobile terminal, and a detection method for simultaneously screening multiple target objects.

Abstract: A detection device, the device comprising a sample liquid bearing device (300), test strips (200), a test strips bearing plate (100) and a signal acquisition positioning assisting device, wherein the sample liquid bearing device (300) comprises two or more samples cells (320) used for containing sample liquid, each of the test strips (200) at least comprises an identity information bearing part (250), a developing part (220) and a capillary part (210), the test strip bearing plate (100) is used for placing the test strips (200) in the same circular ring in a circumferential array radial manner, and the signal acquisition positioning assisting device is arranged on the test strip bearing plate and is used for positioning the test strips.

Abstract: The present invention relates to an ultra-thin acoustic lens for subwavelength focusing in a megasonic range and a design method thereof. More particularly, the present invention relates to a super-oscillatory planar ultra-thin acoustic lens for subwavelength focusing in the megasonic range, which includes a plurality of concentric regions arranged in a concentric shape with reference to the center point, wherein the concentric regions include a plurality acoustic insulation region for insulating incident acoustic waves, and a plurality of transmission regions for transmitting acoustic waves, the acoustic insulation regions and the transmission regions being formed alternatively in a radial direction from the center point so as to focus incident acoustic wave energy onto a subwavelength region.

Abstract: Provided are an apparatus and method for measuring quantum efficiency of a detector using a single pulse laser. Quantum efficiency of the measurement target detector may be measured from 420 nm to 1600 nm having uncertainty of 2% to 4% (K=2) by comparing the reference detector and the measurement target detector significantly different in sensitivity using a single laser pulse as a spectral light source. Also, it is possible to directly compare the two detectors with a significant difference in sensitivity through a very simple setup that causes a portion of a laser pulse output from a light source part to be absorbed by the reference detector and the laser pulse reflected from the reference detector to be irradiated to the measurement target detector.

Abstract: A method for reproducing ultra-short media content includes receiving, by a first computing device of a user, media content items associated with the same event or object. Each of the media content items includes self-contained media fragments. The received media content items are generated by two or more different computing devices. The first computing device sorts the self-contained media fragments based on camera angles of the different computing devices generating corresponding self-contained media fragments with respect to the event or object. The first computing device combines self-contained media fragments into a new media content item based on user-specified criteria to generate a multiple-angle recording of the event or object. Each of the self-contained media fragments is received one by one at the first computing device and displayed as the uninterrupted media stream while subsequent self-contained media fragments are being received from the different computing devices.

Abstract: Systems and techniques are provided for determining an improved camera coverage plan including a number, a placement, and a pose of cameras that are arranged to track puts and takes of items by subjects in a three-dimensional real space. The method includes receiving an initial camera coverage plan including a three-dimensional map of a real space, an initial number and initial pose of a plurality of cameras and a camera model including characteristics of the cameras. The method can iteratively apply a machine learning process to an objective function of number and poses of cameras, and subject to a set of constraints, obtain an improved camera coverage plan. The improved camera coverage plan is provided to an installer to arrange cameras to track puts and takes of items by subjects in the three-dimensional real space.