Abstract: A power-free passive stabilizing device working at an interface of different media includes a hollow chamber body, a limiting structure and a valve cover. The hollow chamber body has a first end, a second end, a first opening at the first end and a second opening at the second end. The limiting structure is connected to the first end of the hollow chamber body. The valve cover is limited by the limiting structure and movably disposed on the first end of the hollow chamber body to close and open the first opening. A passive stabilizing system using the passive stabilizing device is also disclosed.

Abstract: A method for sounding-interval adaptation using link quality for use in an apparatus is provided. The apparatus includes a sounding transceiver. The method includes the following steps: periodically transmitting a sounding packet to a beamformee through a downlink channel from the apparatus to the beamformee according to a first sounding interval; in response to the sounding transceiver receiving a data packet or a report packet from the beamformee, obtaining a current first channel profile from the received data packet or the received report packet; and adaptively adjusting the first sounding interval according to a first mobility indicator which is calculated according to the current first channel profile and the previous first channel profile.

Abstract: A stator includes a stator core and at least one fastener, the stator core includes a lamination, a shaft disposed through the lamination, and at least one insulator disposed on the lamination and configured to be wound with a wire. The fastener is disposed on the at least one insulator and configured for the wire to be wound thereon and for fixing at least one cable coming out from the shaft so as to electrically couple the wire and the at least one cable.

Abstract: A method for sounding-interval adaptation using link quality for use in an apparatus is provided. The apparatus includes a sounding transceiver. The method includes the following steps: periodically transmitting a sounding packet to a beamformee through a downlink channel from the apparatus to the beamformee according to a first sounding interval; in response to the sounding transceiver receiving a data packet or a report packet from the beamformee, obtaining a current first channel profile from the received data packet or the received report packet; and adaptively adjusting the first sounding interval according to a first mobility indicator which is calculated according to the current first channel profile and the previous first channel profile.

Abstract: A method for sounding-interval adaptation using link quality for use in an apparatus is provided. The apparatus includes a sounding transceiver. The method includes the following steps: periodically transmitting a sounding packet to a beamformee through a downlink channel from the apparatus to the beamformee using a first sounding interval; in response to the sound transceiver successfully receiving a report packet from the beamformee to respond to the sounding packet, obtaining a current first channel profile from the report packet, and calculating a first LQ (link quality) value of the beamformee using the current first channel profile and a previous first channel profile; searching an LQ-mapping table using the first LQ value to obtain a second sounding interval; and adaptively adjusting the first sounding interval using the second sounding interval in response to a comparison result of the current first channel profile and the previous first channel profile.

Abstract: A method for sounding-interval adaptation using link quality for use in an apparatus is provided. The apparatus includes a sounding transceiver. The method includes the following steps: periodically transmitting a sounding packet to a beamformee through a downlink channel from the apparatus to the beamformee using a first sounding interval; in response to the sound transceiver successfully receiving a report packet from the beamformee to respond to the sounding packet, obtaining a current first channel profile from the report packet, and calculating a first LQ (link quality) value of the beamformee using the current first channel profile and a previous first channel profile; searching an LQ-mapping table using the first LQ value to obtain a second sounding interval; and adaptively adjusting the first sounding interval using the second sounding interval in response to a comparison result of the current first channel profile and the previous first channel profile.

Abstract: A maintaining device and a maintenance method for maintaining the normal operation of a resistive random access memory are disclosed. The maintenance method can be executed by the maintaining device. Said memory includes first and second electrodes. The first electrode is not grounded. The maintaining device is connected to the first electrode so that the first electrode receives an operational signal and a restoring signal generated by the maintaining device. The operational signal transits from a zero voltage to a non-zero voltage and then to the zero voltage. If the operational signal has already transited from the non-zero voltage to the zero voltage, the maintenance method controls the restoring signal to transit from the zero voltage to a negative voltage, controls the restoring signal to remain the negative voltage for a period of restoring time, and controls the restoring signal to transit from the negative voltage to the zero voltage.

Abstract: A method for isolating nucleic acids is provided. The method includes providing a biological sample containing at least one nucleic acid, and mixing the biological sample with an isolating agent under a suitable condition to isolate the nucleic acids from the biological sample in single step, wherein the isolating agent contains 1-40 wt % of PEG and/or more than 30 wt % of low molecular weight alcohol, a salt, and a detergent. Isolated nucleic acids are bound to a solid support by changes in the solubility of nucleic acids. Additionally, the present invention further provides an isolating agent and kit for isolating nucleic acids.

Abstract: A method for isolating nucleic acids is provided. The method includes providing a biological sample containing at least one nucleic acid, and mixing the biological sample with an isolating agent under a suitable condition to isolate the nucleic acids from the biological sample in single step, wherein the isolating agent contains 1-40 wt % of PEG and/or more than 30 wt % of low molecular weight alcohol, a salt, and a detergent. Isolated nucleic acids are bound to a solid support by changes in the solubility of nucleic acids. Additionally, the present invention further provides an isolating agent and kit for isolating nucleic acids.

Abstract: The present invention relates to a X-form crystal of 17-cyclopropylmethyl-3,14?-dihydroxy-4,5?-epoxy-6?-[N-methyl-trans-3-(3-furyl)acrylamido]morphinan hydrochloride and the manufacturing method thereof, wherein the X-form crystal of the compound has characteristic diffraction peaks at positions of 2? of 13.6°(±0.2°), 17.2°(±0.2°), 19.1°(±0.2°), 23.2°(±0.2°), and 23.8°(±0.2°) in a powder X-ray diffraction pattern thereof. The present invention also relates to a pharmaceutical composition comprising the above-mentioned X-form crystal of morphinan derivative hydrochloride.

Abstract: Disclosed are a chaotropic agent; a reagent including a chaotropic agent and a lithium salt; a reagent kit including a chaotropic agent; a chaotropic agent, a reagent, a reagent kit, and a method for isolating a nucleic acid by use of a magnetic cellulose material; a method for binding a nucleic acid to a magnetic cellulose material; a method for isolating a nucleic acid; and a method for purifying a chromosome DNA. It is required that each of the chaotropic agents, the reagents, and the reagent kits works with at least one solid-phase, magnetic cellulose-containing carrier to isolate a nucleic acid from non-nucleic acid substances. In addition, each chaotropic agent includes an alcohol substance and a substrate solution for adjusting the alcohol substance to an appropriate concentration and thereby promoting binding of the nucleic acid in a sample to the magnetic cellulose.

Abstract: Disclosed are a chaotropic agent; a reagent including a chaotropic agent and a lithium salt; a reagent kit including a chaotropic agent; a chaotropic agent, a reagent, a reagent kit, and a method for isolating a nucleic acid by use of a magnetic cellulose material; a method for binding a nucleic acid to a magnetic cellulose material; a method for isolating a nucleic acid; and a method for purifying a chromosome DNA. It is required that each of the chaotropic agents, the reagents, and the reagent kits works with at least one solid-phase, magnetic cellulose-containing carrier to isolate a nucleic acid from non-nucleic acid substances. In addition, each chaotropic agent includes an alcohol substance and a substrate solution for adjusting the alcohol substance to an appropriate concentration and thereby promoting binding of the nucleic acid in a sample to the magnetic cellulose.

Abstract: A method for isolating nucleic acids is provided. The method includes providing a biological sample containing at least one nucleic acid, and mixing the biological sample with an isolating agent under a suitable condition to isolate the nucleic acids from the biological sample in single step, wherein the isolating agent contains 1-40 wt % of PEG and/or more than 30 wt % of low molecular weight alcohol, a salt, and a detergent. Isolated nucleic acids are bound to a solid support by changes in the solubility of nucleic acids. Additionally, the present invention further provides an isolating agent and kit for isolating nucleic acids.