摘要:
This invention discloses a type of charging system for electric cars which includes an AC electric grid power supply system and an electric car charging equipment. The AC electric grid power supply system couples energy outputs to the electric car charging equipment; its characteristics are: it also includes an battery power system and an electrical energy control module. The electrical energy input of the battery power system is controlled by and connected to the AC electric grid power supply system. The output is controlled by the electrical energy control module and coupled to the electric car charging equipment. With the addition of one or more battery packs to the battery charging system, instantaneous current increase can be provided through the use of the battery packs in order to alleviate the demand on the electric grid. The design capacity of the battery charging system is more ideal and it reduces the instantaneous capacity overload. Meanwhile when the external electric grid fails, it can rely on the battery packs to charge electric cars and thus resolving any urgent charging needs.
摘要:
A solar charger for charging a power battery is provided, comprising: a photo-sensitive unit configured to detect light intensity; a charging unit configured to receive a voltage transformed from solar energy and to boost the voltage for charging the power battery; a switch unit coupled between the charging unit and the power battery and configured to disconnect the charging unit from the power battery or connect the charging unit with the power battery; and a control unit coupled to each of the photo-sensitive unit, the switch unit, and the charging unit, and configured to switch on the charging unit and the switch unit when the light intensity is higher than a first predetermined value to charge the power battery.
摘要:
A low temperature, low cost method of encapsulating organic light emitting diodes (OLED) that avoids damage to the OLED device. A metal passivation layer is formed using a plasma, UV-ozone, or wet chemical treatment, wherein the metal passivation layer serves to encapsulate and protect the OLED from moisture and oxygen. Alternatively, a buffer layer and a metal layer are formed onto the OLED and the metal layer is treated using a plasma, UV-ozone, or wet chemical treatment, to form a metal passivation layer that serves to encapsulate and protect the OLED from moisture and oxygen.
摘要:
A three-dimensional microwell system that supports long term pluripotent cell culture and formation of homogeneous embryoid bodies (EBs) is described. Microwell-cultured pluripotent cells remain viable and undifferentiated for several weeks in culture and maintain undifferentiated replication when passaged to Matrigel®-coated, tissue culture-treated polystyrene dishes. Microwell-cultured pluripotent cells maintain pluripotency, differentiating to each of the three embryonic germ layers. Pluripotent cell aggregates released from microwells can be passaged for undifferentiated replication or differentiated to monodisperse EBs. The ability to constrain pluripotent cell growth in three dimensions advantageously provides for more efficient, reproducible culture of undifferentiated cells, high-throughput screening, and the ability to direct pluripotent cell differentiation by generating monodisperse EBs of a desired size and shape. Cardiomyocyte-rich EBs are obtained from pluripotent cells cultured in microwells of defined size and shape.
摘要:
Methods for culturing the pluripotent stem cells to undergo epithelial-to-mesenchymal transition and for generating high-yield, high-purity cardiomyocyte cultures from pluripotent stem cells are described. Pluripotent stem cells are cultured on a support with an overlaid matrix and, optionally, exposed to one or more factors to induce epithelial-to-mesenchymal transition and cardiogenesis.
摘要:
Provided herein are methods and compositions for promoting neuroprotection in a subject and for treating a neural disorder associated with protein aggregation comprising administering to the subject an agent that increases expression or activity of cathepsin-D. Also provided are methods of screening for agents that increase expression or activity of cathepsin-D and methods of screening for neuroprotective agents.
摘要:
Noise and vibrations associated with a common rail fuel system drive linkage are reduced by synchronizing a high pressure common rail supply pump with engine operation. This may be accomplished by selecting a linkage associated with a desired ratio of engine speed to pump speed along with selecting a number of pump plungers and cam lobes that results in synchronizing action of the pump with engine combustion events. In particular, a pattern of pumping events per engine cycle repeats during each engine cycle. In a more sophisticated version, the pattern of pumping events per engine cycle includes a sub-pattern of pumping events that repeats an integer number of times each engine cycle, where the integer number equals the number of engine cylinders.
摘要:
A telescoping shoring post having an inner tube having a plurality of projections spaced longitudinally thereon, longitudinally adjacent projections forming a groove there between to create a plurality of grooves on the inner tube; a hollow outer tube, the outer tube dimensions to allow the inner tube to slide therein; a load plate, the load plate having a collar adapted to affix the load plate to the outer tube and tongues projecting from the load plate, the tongues adapted to project over a hollow portion of the outer tube when the load plate is affixed to the outer tube, wherein the inner tube can slide within the outer tube to a gross adjustment extension length and wherein the tongues on the load plate are adapted to engage the grooves on the inner tube.
摘要:
A high volume high pressure common rail pump for a fuel system includes pairs of pump head assemblies in phase with each other but oriented in opposition to one another about a rotating cam shaft. Pump pistons in the pump head assemblies simultaneously undergo pumping strokes via a shared two lobe cam of the rotating cam shaft. The pump may include two pairs of pump head assemblies, and each head assembly may include two pump pistons. The cam shaft includes two cams sufficiently out of phase with one another that the cam shaft always has a positive torque even when the cam lobes are symmetrical. In addition, because the pumping is done simultaneously on opposite sides of the cam shaft, the forces on the cam shaft are balanced and its support bearings experience less wear and tear.