Abstract: Reverse blocking apparatus for electronic devices and switch apparatus including the same. In some embodiments, a blocking system for an electronic device can include a determining unit configured to generate an indication signal indicative of a condition associated with an undesirable current in the electronic device. Such an undesirable current can be a reverse current which can damage electronic devices such as transistors. The blocking system can further include a blocking unit in communication with the determining unit. The blocking unit can be configured to be coupled to a terminal of the electronic device. The blocking unit can be further configured to inhibit or reduce passage of the undesirable current in the electronic device based on the indication signal. Examples of applications of such a blocking system and related methods are disclosed.

Abstract: A detection apparatus and method for an ion migration spectrum include acquiring an ion migration spectrum of pure carrier gas and an ion migration spectrum of carrier gas containing a test substance sample and performing differential process on the ion migration spectrum of the pure carrier gas and the ion migration spectrum of the carrier gas containing the test substance sample to acquire a differential spectrum. The value of a characteristic peak of the differential spectrum represents properties of the sample of substances. The method avoids interferences on the migration spectrum from interference sources of the apparatus itself, thereby improving detection sensitivity and accuracy of the ion migration spectrum, and migration spectrum shift caused by variations in the environmental conditions can be found and corrected through the differential process on the migration spectrum of the pure carrier gas, thereby achieving self-stableness and self-correction of the ion migration spectrometer.

Abstract: A method and system for detecting special nuclear materials are disclosed. Said method and system detect the special nuclear materials by making use of the photofission characteristic and thermal neutron induced fission characteristic thereof. In one preferred embodiment, the high density and/or high atomic number region in the object to be detected is also detected first as a suspicious region.

Abstract: A photoneutron conversion target for generating photoneutrons by directing an x-ray beam at the photoneutron conversion target includes an elongated body having a first end and a second end. When the photoneutron conversion target is in use, the x-ray beam enters the body and propagates in a direction from the first end to the second end. The body of the photoneutron conversion target is shaped such that propagation of the x-ray beam is substantially proportionate to an intensity distribution of the x-ray beam, so that the greater an intensity of x-rays of the x-ray beam, the greater the propagation distance of the x-rays within the body of the photoneutron conversion target. The photoneutron conversion target according to the invention can make full use of the x-ray beam so as to increase a yield of photoneutrons.

Abstract: The invention discloses a data storage system and managing method thereof. The data storage system according to the invention includes N storage devices, a backup memory and a controller where N is a natural number. Each storage device has a respective write cache. Once the data storage system suffers from power failure, the backup memory still reserves data stored therein. The controller receives data transmitted from an application I/O request unit, executes a predetermined operation for the received data to generate data to be written, transmits the data to be written to the write caches of the storage devices, duplicates the data to be written into the backup memory, and labels the duplicated data in the backup memory as being valid in response to a writing confirm message sent from the storage devices.

Abstract: A mounting apparatus includes a chassis and a mounting piece. The chassis includes a rear plate. An expansion slot is defined in the rear plate, and a clipping portion extends from an edge of the expansion slot. The mounting piece includes a main body, an engaging piece extending from a first end of the main body, and an inserting portion extending from a second opposite end of the main body. The engaging piece defines a clipping slot, and two blocking portions are located on the opposite side of entrance of the clipping slot. The clipping portion is engaged in the clipping slot, and the two blocking portions prevent the clipping portion from being disengaged from the clipping slot.

Abstract: An electrostatic discharge (ESD) protection apparatus includes at least one first transistor and at least one second transistor. The first transistor includes a control terminal, a first terminal, a second terminal, and a bulk. The control terminal and the second terminal of the first transistor are coupled to each other. The first terminal of the first transistor is coupled to one of a pad and a power rail line. Likewise, the second transistor also includes a control terminal, a first terminal, and a second terminal. The first terminal of the second transistor is coupled to the bulk of the first transistor, the bulk of the second transistor is coupled to the second terminal of the first transistor, and the second terminal of the second transistor is coupled to the other of the pad and the power rail line.

Abstract: ESD protection circuit including a resistor and at least one protection transistor; the resistor coupled between an I/O signal node and an internal node of internal circuit, the protection transistors serially coupled between the internal node and a voltage node with each protection transistor comprising a gate and a drain which is coupled to the gate.

Abstract: Electrostatic discharge (ESD) protection circuit including a first silicon controlled rectifier (SCR) and a trigger circuit; the trigger circuit including a first MOS transistor and a second transistor, triggering the first SCR and providing a second SCR shunt with the first SCR during ESD.

Abstract: The present invention relates to a method of improving detection sensitivity of an ion mobility spectrometer, comprising: inserting a sample into a sample receiving device of the ion mobility spectrometer; triggering an operation of spectra acquisition through an optocoupler; when the number of the acquired spectra reaches the level required to contain enough information for accurate detection of explosives with relatively high vapor pressure, adding a dopant instantly to the ionization region by controlling the ON/OFF-state of an electromagnetic valve; when the number of the acquired spectra reaches the level required to contain enough information for accurate detection of explosives with relatively low vapor pressure, stopping the acquisition operation, and turning off the electromagnetic valve so as to stop adding the dopant to the ionization region; analyzing all of the acquired spectra to obtain the detection result.

Abstract: A method and system for detecting special nuclear materials are disclosed. Said method and system detect the special nuclear materials by making use of the photofission characteristic and thermal neutron induced fission characteristic thereof. In one preferred embodiment, the high density and/or high atomic number region in the object to be detected is also detected first as a suspicious region.

Abstract: An ion mobility tube comprises an ionization source chamber having a center ionization source chamber hole, an ion door, a mobility region unit having a center mobility tube chamber, a constraining grid, and a Faraday disk, and the ionization source chamber, the ion door, the mobility region unit, the constraining grid, and the Faraday disk are laminated together in sequence in a front-rear direction, wherein the mobility region unit comprises a first insulator and first metal electrode sheets concentrically fixed to a front surface and a back surface of the first insulator respectively. The mobility region unit comprises the first insulator and the first metal electrode sheets which are integral. Therefore, the ion mobility tube is advantageous in simplified manufacturing, and convenient for detachment and assembly.

Abstract: Thermal responsive compositions for treating bone diseases are provided. The thermal responsive composition for treating bone diseases includes a bone growth factor and a biodegradable copolymer. The biodegradable copolymer has a structure of Formula (I) or Formula (II): A-B-BOX-B-A??Formula (I) B-A-B-(BOX-B-A-B)n-BOX-B-A-B??Formula (II) wherein, A includes a hydrophilic polyethylene glycol polymer, B includes a hydrophobic polyester polymer, BOX is a bifunctional group monomer of 2, 2?-Bis(2-oxazoline) and used for coupling the blocks A-B or B-A-B, and n is an integer and the same or more than 0.

Abstract: Disclosed is detection system for detection an object being conveyed along a convey path, the detection system comprises a DR imaging apparatus and a CT imaging apparatus which is provided at the downstream or upstream of the DR imaging apparatus along the convey path, wherein an average speed at which the object passes the DR imaging apparatus is higher than an average speed at which the object passes the CT imaging apparatus.

Abstract: A sampling component including a sampling body that can be electrically heated and an outer surface of which has a wiping sampling area to receive a sample; and an insulated handle that is connected to one longitudinal end of the sampling body. The sampling component contacts directly electrical contacts of an external power supply after being positioned in a analysis chamber, the power supply is turned on to vaporize the sample, and the power is turned off immediately after the sampling component removed from the chamber. The power consumption and a malfunction caused by long-term use of the sampling device under a high temperature can be avoided. A sampling device having the sampling component and an ion mobility spectrometer having the sampling device are also provided.

Abstract: An electronic device enclosure includes a main enclosure, a cable holding device received in the main enclosure, and a cable which held by the cable holding device in different orientations. A first positioning slot and a second positioning slot are defined in the cable holding device. The cable is guided out of the cable holding device in one or more predetermined directions.

Abstract: The present invention relates to a pre-concentration device and method for an ion mobility detection apparatus. According to an aspect of the invention, there is provided a pre-concentration device comprising: a collecting passage configured to collect a gas mixture including substances to be detected: a sieve provided, in a deploy state, within the collecting passage and configured to separate the substances from the gas mixture, the separated substances being absorbed to the sieve; at least one desorption unit configured to desorb the substances that have been absorbed to the sieve, the sieve being received in a wound state in the desorption unit; and a driving device configured to drive movement of the sieve between an absorption position in which the substances are absorbed to the sieve in the collecting passage, and a desorption position in which the substances are desorbed from the sieve in the at least one desorption unit.

Abstract: An ion mobility tube comprises an ionization source chamber having a center ionization source chamber hole, an ion door, a mobility region unit having a center mobility tube chamber, a constraining grid, and a Faraday disk, and the ionization source chamber, the ion door, the mobility region unit, the constraining grid, and the Faraday disk are laminated together in sequence in a front-rear direction, wherein the mobility region unit comprises a first insulator and first metal electrode sheets concentrically fixed to a front surface and a back surface of the first insulator respectively. The mobility region unit comprises the first insulator and the first metal electrode sheets which are integral. Therefore, the ion mobility tube is advantageous in simplified manufacturing, and convenient for detachment and assembly.

Abstract: A PCI riser card includes a printed circuit board and an array of PCI connectors located on the printed circuit board. A plug portion extends from an edge of the printed circuit board and may be inserted into a PCI connector of a system board. The array of PCI connectors includes a first PCI connector and a second PCI connector. The first PCI connector is parallel to the second PCI connector is arranged in inverse relative to the second PCI connector.

Abstract: A mounting apparatus includes a chassis and a mounting piece. The chassis includes a rear plate. An expansion slot is defined in the rear plate, and a clipping portion extends from an edge of the expansion slot. The mounting piece includes a main body, an engaging piece extending from a first end of the main body, and an inserting portion extending from a second opposite end of the main body. The engaging piece defines a clipping slot, and two blocking portions are located on the opposite side of entrance of the clipping slot. The clipping portion is engaged in the clipping slot, and the two blocking portions prevent the clipping portion from being disengaged from the clipping slot.