Abstract: An electric power protection circuit connected in series to a secondary side circuit of a transformer in a switch mode power supply includes a voltage/current limiting device to get an electric power signal output from the secondary side circuit of the transformer that goes through current and voltage limitation before being output and a constant current/voltage controller to get the electric power signal which has the current and voltage limited by the voltage/current limiting device. The electric power signal further is undergone constant voltage/current control to achieve voltage overshoot protection.

Abstract: An electric power protection circuit connected in series to a secondary side circuit of a transformer in a switch mode power supply includes a voltage/current limiting device to get an electric power signal output from the secondary side circuit of the transformer that goes through current and voltage limitation before being output and a constant current/voltage controller to get the electric power signal which has the current and voltage limited by the voltage/current limiting device. The electric power signal further is undergone constant voltage/current control to achieve voltage overshoot protection.

Abstract: A method of determining a molecular descriptor of absorption for a candidate compound is disclosed. The method includes: providing a test solution comprising one or more candidate compounds; contacting the test solution with a simulated biological membrane to partition the one or more candidate compounds into the membrane detecting the presence or amount of the one or more candidate compound in the membrane at one or more permeation times; and determining a molecular descriptor of absorption using the presence or amount of the one or more candidate compound in the membrane at the one or more permeation times. In one aspect the invention provides a skin-imitating membrane, and one or more percutaneous absorption parameters are determined. In another aspect the membrane is disposed on a fiber. In another aspect the test solution is contacted with two or more simulated biological membranes to partition the one or more candidate compounds into the membranes.

Abstract: A protective cover is used for protecting thermal conducting mediums on two heat sinks from being damaged simultaneously. The protective cover includes a plate body and two holding portions. The plate body has two opposite plate surfaces respectively covering the sides of the two heat sinks coated with a thermal conducting medium. The two holding portions are formed on the periphery of the two plate surfaces and surround the two plate surfaces to form an accommodation space respectively. The holding portions are engaged with the two heat sinks and cover the thermal conducting mediums in the accommodation space respectively.

Abstract: A thermal conductive medium cover is covered on the bottom of a heat sink for protecting a thermal conductive medium on the bottom of the heat sink, and is latched by a latching member for the heat sink. The thermal conductive medium cover includes a tray body covered on the bottom of the heat sink for protecting the thermal conductive medium, and two latched portions formed on two opposite lateral edges of the tray body. Two ends of the latching member respectively latch the two latched portions, so as to fix the tray body to the bottom of the heat sink. Thus, the thermal conductive medium cover is firmly fixed and will not fall off. Meanwhile, the latching member is also fixed and will not shake relative to the heat sink, thus preventing the latching member from colliding with the heat sink.

Abstract: An electric power protection circuit connected in series to a secondary side circuit of a transformer in a switch mode power supply includes a voltage/current limiting device to get an electric power signal output from the secondary side circuit of the transformer that goes through current and voltage limitation before being output and a constant current/voltage controller to get the electric power signal which has the current and voltage limited by the voltage/current limiting device. The electric power signal further is undergone constant voltage/current control to achieve voltage overshoot protection.

Abstract: A method of determining a molecular descriptor of absorption for a candidate compound is disclosed. The method includes: providing a test solution comprising one or more candidate compounds; contacting the test solution with a simulated biological membrane to partition the one or more candidate compounds into the membrane detecting the presence or amount of the one or more candidate compound in the membrane at one or more permeation times; and determining a molecular descriptor of absorption using the presence or amount of the one or more candidate compound in the membrane at the one or more permeation times. In one aspect the invention provides a skin-imitating membrane, and one or more percutaneous absorption parameters are determined. In another aspect the membrane is disposed on a fiber. In another aspect the test solution is contacted with two or more simulated biological membranes to partition the one or more candidate compounds into the membranes.

Abstract: The present invention is a wind chute escape system using a wind pressure to control the descending speed of a person inside a wind chute. A strong landing pressure produced by a landing blower is used to decelerate the descending body to a safe landing speed. The wind pressure inside the wind chute is produced and controlled by a wind blower and the landing blower or by one of them. There are mainly two forces acted on the descending body inside the wind chute, the downward gravity and the upward wind pressure. The balance of theses two forces determines the descending speed of the escapee. Since the wind pressure inside the wind chute is under control, the descending body can be control to a desired speed. Since the wind pressure loss is small in large wind chutes of 1 to 5 feet. in diameter, and the wind pressure transfers inside the wind chute in a speed of sound, this wind chute escape system can be used for high-rise buildings or skyscrapers of hundreds, even thousands of feet high.