Abstract: A radiation detection device includes a sensor having a first electrode and a second electrode. The first and second electrode each defines a plurality of fingers comprising a nanotube material, and the fingers of each electrode are interdigitated with one another. A voltage source may be configured to apply a voltage across the first and second electrodes. A chamber contains the sensor with a gas, one or more walls of the chamber enabling passage of radiation external to the chamber. A detection circuit detects radiation within the chamber based on a change in current across the first and second electrodes resulting from ionization of the gas by the radiation.

Abstract: The present invention relates to a ruthenium precursor compound, and more particularly, to a ruthenium precursor compound which is for providing ruthenium to an ammonia decomposition reaction catalyst and is represented by Formula CxHyOzNmRun, wherein x is an integer of 3 to 20, y is an integer of 0 to 32, z is an integer of 0 to 20, m is an integer of 0 to 10, and n is an integer of 1 to 3. In addition, the present invention relates to an ammonia reaction catalyst using the ruthenium precursor, and to a method for preparing the ammonia reaction catalyst, and provides an ammonia reaction catalyst having an excellent ammonia conversion rate at low temperatures, thereby being capable of efficient hydrogen production.

Abstract: A pharmaceutical composition comprising udenafil is disclosed.

Abstract: An apparatus for quantum-based physically unclonable functions is disclosed. The apparatus for quantum-based physically unclonable functions according to an embodiment of the present embodiment comprises a random nanostructure formed on a substrate by hydrothermal synthesis, wherein the random nanostructure emits a laser light of a predetermined pattern through the quantum activity of the random nanostructure.

Abstract: The present invention relates to a novel preparation. The present invention has an advantage of enabling bitterness of the raw material medicine to be masked by only the physical shape thereof. The present invention breaks away from general knowledge, and is a concept having never been conceived of thus far and is a novel preparation, which can be widely used in the pharmaceutical industry in the future.

Abstract: A carbon nanotube-based micron scale chemical sensor or sensor array is provided that enables the remote detection of hydrogen sulfide and other chemicals in a gas stream. The sensor is suitable for use in harsh environments of high temperature and pressure such as those encountered during petrochemical exploration and recovery. Multiplex sensor devices detect two or more chemical agents simultaneously, or they can detect conditions such as pressure, salinity, humidity, pH, or scale-forming ions. Incorporation of read out electronics and an RF signal generator into the sensor device enables it to communicate to a relay station or receiver for 3D mapping or other analysis. Methods are also provided for fabricating the chemical sensor device and using the device for detection.

Abstract: Heterojunctions of single-walled carbon nanotubes and p-doped silicon produce a photocurrent when irradiated with visible light under reverse bias conditions. In optoelectronic devices utilizing the heterojunctions, the output current can be controlled completely by both optical and electrical inputs. The heterojunctions provide a platform for heterogeneous optoelectronic logic elements with high voltage-switchable photocurrent, photo-voltage responsivity, electrical ON/OFF ratio, and optical ON/OFF ratio. The devices are combined to make switches, logic elements, and imaging sensors. An assembly of 250,000 sensor elements on a centimeter-scale wafer is also provided, with each sensor element having a heterojunction of single-walled carbon nanotubes and p-doped silicon, and producing a current dependent on both the optical and the electrical input.

Abstract: A carbon nanotube-based micron scale chemical sensor or sensor array is provided that enables the remote detection of hydrogen sulfide and other chemicals in a gas stream. The sensor is suitable for use in harsh environments of high temperature and pressure such as those encountered during petrochemical exploration and recovery. Multiplex sensor devices detect two or more chemical agents simultaneously, or they can detect conditions such as pressure, salinity, humidity, pH, or scale-forming ions. Incorporation of read out electronics and an RF signal generator into the sensor device enables it to communicate to a relay station or receiver for 3D mapping or other analysis. Methods are also provided for fabricating the chemical sensor device and using the device for detection.

Abstract: An alignment measuring system includes a focusing diode, a light source, an image sensor, first and second splitters, and a controller. The first splitter directs a portion of light from the light source toward a wafer, and directs light returned by the wafer to the second splitter. The second splitter directs a first portion of the light toward the image sensor, and a second portion of the light toward the focusing diode, and control the ratio of the first and second portions in response to a control signal from the controller. The image sensor receives the first portion of light and produces a detection signal. The controller receives the detection signal, determines an alignment state of the wafer, and controls a stage to align and position the wafer.

Abstract: An alignment measuring system includes a focusing diode, a light source, an image sensor, first and second splitters, a focusing diode, and a controller. The first splitter directs a portion of light from the light source toward a wafer, and directs light returned by the wafer to the second splitter. The second splitter directs a first portion of the light toward the image sensor, and a second portion of the light toward the focusing diode, and control the ratio of the first and second portions in response to a control signal from the controller. The image sensor receives the first portion of light and produces a detection signal. The controller receives the detection signal, determines an alignment state of the wafer, and controls a stage to align and position the wafer.