Abstract: Embodiment of the present invention discloses a kind of methionine lyase and its encoding gene and biosynthetic method. According to the present invention, the gene encoding methionine lyase as shown in SEQ ID No. 1 is separated from the genome of C. rosea. Embodiment of the present invention further provides an efficient biosynthetic method of methionine lyase, comprising: (1) cloning gene (shown in SEQ ID No. 1) encoding methionine degradation enzyme into a yeast expression vector to construct recombinant yeast expression vector; (2) transforming the recombinant yeast expression vector into Saccharomyces cerevisiae to obtain expression strain; (3) inducing the expression strain to express the methionine lyase, collecting induced strains, purifying expressed recombinant methionine lyase. Purity of recombinant methionine lyase prepared according to the present invention is above 90%, and its efficiency of degradating methionine can reach 0.53±0.0030 ?M MTL·h?1·mg protein?1.

Abstract: A cylinder includes a curved cylinder body, a first support member, and a piston assembly. The curved cylinder body defines a gas chamber passing through opposite ends. The first support member includes a support housing slidably mounted on the outer circumferential surface of the cylinder body and a first permanent magnet securely mounted in the support housing. The piston assembly received in the gas chamber includes a first piston member and a second piston member rotatably coupled to the first piston member. The first and second piston members respectively have a second permanent magnet which is arranged to be attracted to the first permanent magnet. When the piston assembly moves along the curved cylinder body from the first end to the second end in the gas chamber, the first support member moves with the piston assembly on the outer circumferential surface of the curved cylinder body.

Abstract: It discloses an application of a fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands. The fermentation broth of Potamogeton crispus is prepared by the following method: collecting, draining off and grinding the Potamogeton crispuses, then, placing the grinded Potamogeton crispuses into a fermentation tank, mixing them with domesticated fermented sludge, and then adding water and fermenting the mixed liquor at a constant temperature, removing the residue of the Potamogeton crispuses, and obtaining the prepared fermentation broth of Potamogeton crispus. The present invention also discloses an application of the fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands.

Abstract: A system for tracking mobile subscribers, the system includes an aircraft having an on-board virtual BTS that substitutes for a stationary BTS. The virtual BTS emulates a behavior of the stationary BTS so as to be indistinguishable from the stationary BTS to the mobile device, including emulation of communication protocols and billing operations The virtual BTS communicate with the mobile devices. The virtual BTS includes a processor running Software Defined Radio (SDR) and a signal amplifier, the SDR receiving identifiers of the mobile devices. The aircraft includes a high-gain antenna for determining directions of signals from the mobile devices. A camera on board the aircraft takes images or video of an area on the ground. The processor collects and processes the images or video, the directions of the signals and the identifiers of the mobile devices to locate a specific subscriber. The processor transmits the processed information to a server.

Abstract: The present invention relates to the uses of sesquiterpene lactone compounds and their derivatives in preparing drugs. It belongs to the field of drug technology, specifically relates to the uses of the compounds of Formula (I) in preparing the drugs, especially the uses in preparing the drugs to treat rheumatoid arthritis and treat cancers through inhibiting cancer stem cells.

Abstract: A cylinder includes a curved cylinder body, a first support member, and a piston assembly. The curved cylinder body defines a gas chamber passing through opposite ends. The first support member includes a support housing slidably mounted on the outer circumferential surface of the cylinder body and a first permanent magnet securely mounted in the support housing. The piston assembly received in the gas chamber includes a first piston member and a second piston member rotatably coupled to the first piston member. The first and second piston members respectively have a second permanent magnet which is arranged to be attracted to the first permanent magnet. When the piston assembly moves along the curved cylinder body from the first end to the second end in the gas chamber, the first support member moves with the piston assembly on the outer circumferential surface of the curved cylinder body.

Abstract: An electro-optical system, apparatus, and method allow long-term, ambulatory measurements to be made on a patient using light transmitted into the patient and resulting light received from the patient.

Abstract: A positional stop device includes a base body, a lever, a driving element, and a retaining member. The lever is rotatablely arranged on the base body, a first end of the lever couples to the driving element, and a second end of the lever couples to the retaining member. The driving element is partially exposed out of the base body. The retaining member is moveablely received in the base body. When the slider of a pneumatic rodless cylinder slides along a first direction, the driving element is driven by the slider to move along a second direction and be fully received in the base body. The lever is driven by the driving element to rotate around the base body. The retaining member is driven by the lever to move along a third direction and to be partially exposed out of the base body to stops the slider from sliding.

Abstract: A self-stabilizing gas lift valve apparatus for oil and gas production. The apparatus includes a valve body having at least one gas inlet in communication with an elongated gas chamber in the valve body. An impingement disk is moveable in the elongated gas chamber. A conical plug extends from the impingement disk with the conical plug having a valve plug extending axially therefrom. A conical cup terminates in a valve seat wherein the conical cup receives the conical plug therein. A valve closure force mechanism urges the valve plug toward the valve seat. Gas injected through the gas inlet provides a force upon the impingement disk to overcome the force of the valve closure force mechanism in order to open the valve plug. When the gas injected exceeds a predetermined force, the impingent disk is moved and a conical space between the conical plug and the conical cup is reduced.

Abstract: A system and method for measuring and monitoring blood pressure is provided. The system includes a wearable device and a tonometry device coupled to the wearable device. The Tonometry device is configured to compress a superficial temporal artery (STA] of a user. A sensor pad is attached to the wearable device adjacent the tonometry device. A blood pressure sensor is integrated within the sensor pad for continuous, unobtrusive blood pressure monitoring.

Abstract: A low-wear microporous friction material with a high stability coefficient and a manufacturing method thereof are provided. The formula of the friction material includes GM-15 resin 15-50 wt %, rubber 0-10 wt %, shaping aid 0.5-5 wt %, sintering aid 0.5-5 wt %, foaming aid 0.5-5 wt %, kaolin powder 0.5-20 wt %, barite powder 5-40 wt %, carbon fiber 2-20 wt %, KEVLAR 1-5 wt %, zinc oxide 1-10 wt %, and iron oxide red 0-2 wt %. By adjusting the hydrophilicity of the friction material and controlling the surface tension of the material, the friction coefficient of the material is kept from lowering under wet conditions and is rendered stable in dry and wet conditions. More specifically, the friction coefficient of the friction material stays above 0.25 under wet conditions, and the stability coefficient of the friction coefficient can reach 85% or above on an MM 1000 tester.

Abstract: A motor vibration device includes a motor having a rotating shaft and an eccentric fixed to the shaft. The eccentric includes multiple stacked eccentric plates fixed together by engaging mounting protrusions and mounting recesses formed on adjacent eccentric plates. Each eccentric plate includes a connection portion and an eccentric portion connected to the connection portion. The connection portion has a through hole into which the shaft is pressed. The eccentric portion includes a first straight edge and a second straight edge respectively extending from two sides of the connection portion, and a circular arc edge connecting the first and second straight edges. An included angle between the first and second straight edges ranges from 150 degrees to 180 degrees.

Abstract: An embodiment of the present invention discloses a method for controlling presentation of an application. The method comprises: a first client sending, to a server, a purchase request carrying the allowed number of times of using an application (APP); the server generating an APP redeeming code according to the purchase request, storing a correspondence between the APP redeeming code and the allowed number of times of use, and returning the APP redeeming code to the first client; the first client sending the APP redeeming code to a second client; the server receiving a redeeming request sent by the second client and carrying the APP redeeming code, and after the server determines that the redeeming is allowed according to the allowed number of times of use corresponding to the APP redeeming code, the server sending downloading information of a corresponding APP to the second client. Embodiments of the prevent invention also provide a device and a system for controlling presentation of an application.

Abstract: Various embodiments may relate to a hot plug module for an illuminating device, including a detection unit for detecting a hot plug state to obtain a detecting state, and an impedance adjusting unit for adjusting an impedance state of the hot plug module in accordance with the detecting state, and wherein the impedance adjusting unit includes an impedance conversion unit whose impedance can be converted, and a conversion drive unit converting the impedance of the impedance conversion unit in accordance with the detecting state to adjust the impedance state. Further, various embodiments relate to a driver for an illuminating device and an illuminating device.

Abstract: A system for tracking mobile subscribers, the system includes an aircraft having an on-board virtual BTS that substitutes for a stationary BTS. The virtual BTS emulates a behavior of the stationary BTS so as to be indistinguishable from the stationary BTS to the mobile device, including emulation of communication protocols and billing operations The virtual BTS communicate with the mobile devices. The virtual BTS includes a processor running Software Defined Radio (SDR) and a signal amplifier, the SDR receiving identifiers of the mobile devices. The aircraft includes a high-gain antenna for determining directions of signals from the mobile devices. A camera on board the aircraft takes images or video of an area on the ground. The processor collects and processes the images or video, the directions of the signals and the identifiers of the mobile devices to locate a specific subscriber. The processor transmits the processed information to a server.

Abstract: Various embodiments relate to a drive circuit for an illumination device and an illumination device. The drive circuit includes a first drive module, wherein the first drive module is configured to convert an alternating current signal from a power supply to a constant current drive signal supplied to a light-emitting unit of the illumination device, and wherein the drive circuit further includes a second drive module, and wherein the second drive module is in series connection with the first drive module and the light-emitting unit and is configured to hold a voltage which is applied across the second drive module by the constant current drive signal, and the second drive module further includes a first switch means which is driven by the held voltage to turn on such that a current signal output from the second drive module is a direct current signal.

Abstract: A system and a method is provided for assessing motion of a biological tissue of a subject including one or more superficial biological layers and a targeted biological layer. An optical perturbation is introduced within the one or more superficial biological layers but not within the targeted biological layer. A set of optical signal data is acquired preceding, during, or following the optical perturbation and, using the set of optical signal data, a set of optical characteristics is determined that is representative of light transiting the biological layers. Using the set of optical characteristics and a model of the biological layers, a target optical signal consistent with a target biological layer is separated and a movement of the desired biological tissue is determined using the target optical signal.

Abstract: A light emitting device includes first, second and third LED arrays and a wavelength-based light combination device. The first LED array includes blue LEDs; the second LED array includes yellow fluorescent LEDs or green fluorescent LEDs and green LEDs; the third LED array includes red LEDs and amber LEDs. The light combination device includes first and second filters. The first filter reflects wavelengths below or equal to ?1 and transmits other wavelengths; the second filter transmits wavelengths below or equal to ?2 and reflects other wavelengths, where 470 nm??1?500 nm, 560 nm??2?590 nm. The first and second filters combine the lights from the first, second and third LED arrays into one beam. The light emitting device can emit a white light with high color rendering index. Also disclosed is a stage lighting system employing the light emitting device.

Abstract: Joint structure includes a joint plug assembly and a joint outlet assembly. The joint plug assembly includes a plug body, a sealing member, and a flexible member. The plug body defines a receiving channel including a first receiving hole and a second receiving hole communicating with the first receiving hole. A diameter of the second receiving hole is smaller than that of the first receiving hole. The plug body includes a spherical outer surface. The flexible member biases the sealing member to block the second receiving hole. The joint outlet assembly includes an outlet body and a pin. The outlet body defines a latching groove, and the latching groove forms a spherical inner surface. The pin is received in the latching groove and defines at least one groove along a longitudinal direction thereof.

Abstract: Various embodiments relate to a drive circuit for an illumination device and an illumination device. The drive circuit includes a first drive module, wherein the first drive module is configured to convert an alternating current signal from a power supply to a constant current drive signal supplied to a light-emitting unit of the illumination device, and wherein the drive circuit further includes a second drive module, and wherein the second drive module is in series connection with the first drive module and the light-emitting unit and is configured to hold a voltage which is applied across the second drive module by the constant current drive signal, and the second drive module further includes a first switch means which is driven by the held voltage to turn on such that a current signal output from the second drive module is a direct current signal.