摘要:
There is provided a network appliance, methods and systems which intercept web and email traffic, extract executables, compare the executables with a policy and wrap the executables. Then, the wrapped executables are delivered to a client system in a manner to protect the network and end point devices, where the wrapped executables are run in a sandbox with all file system, registry accesses, communication and traffic isolated.
摘要:
A lens driving device, includes a shell providing an accommodating space, a supporting frame accommodated in the accommodating space, a lens module received in the supporting frame and comprising at least one lens and a lens holder for holding the at least one lens, a circuit board accommodated in the accommodating space and having at least two adjacent surfaces, each of the at least two adjacent surfaces having a position sensor and an anti-shake coil arranged thereon and apart from each other, a magnet assembly having at least two first magnets and at least two second magnets fixed to the supporting frame, each of the at least two second magnets abutting against a corresponding first magnet and be adjacent to a corresponding position sensor. Comparing to the relevant technologies, the lens driving device has good performance and high reliability.
摘要:
The invention discloses a Pseudonocardia sp. and a method for preparing Deoxynyboquinone by utilizing the same. Pseudonocardia sp. SCSIO 01299 was collected in China Center for Type Culture Collection (CCTCC) (Address: Wuhan University, Wuhan City, China) with the collection number of CCTCC NO: M 2011255 on Jul. 18, 2011. The Pseudonocardia sp. SCSIO 01299 can produce antibiotic Deoxynyboquinone, so that the Pseudonocardia sp. SCSIO 01299 can be utilized for preparing Deoxynyboquinone and a new way is provided for producing antibiotic Deoxynyboquinone with anti-tumor activity.
摘要:
An integrated circuit includes a saw-tooth generator including a saw tooth node configured to have a saw-tooth voltage generated thereon; and a first switch having a first end connected to the saw tooth node. The integrated circuit further includes a second switch coupled between an output node and an electrical ground, wherein the first switch and the second switch are configured to operate synchronously. A first current source is connected to the saw tooth node. A second current source is connected to the output node.
摘要:
A polycrystalline abrasive composite cutter, including a tool body with a top cutting surface and a flank surface. The composite cutter, joined to a substrate, constitute a shear cutter for a PDC bit, roller-cone bit insert, or other tool that can be highly useful for petroleum drilling or other applications. The body of the polycrystalline abrasive composite cutter includes a plurality of polycrystalline abrasive layers (90) and a plurality of arresting layers (100). The polycrystalline abrasive layers (90) and the arresting layers (100) are arranged to alternate throughout the tool body in a direction normal to the top cutting surface (92) and in a direction normal to a flank surface (94).
摘要:
A zero current detector for a DC-DC converter includes a first transistor having a drain, a gate, and a source for sensing the voltage of a first terminal of a power transistor; a second transistor having a drain, a gate, and a source for sensing the voltage of a second terminal of a power transistor; and a third transistor having a coupled gate and drain for receiving a reference current that is coupled to the gates of the first and second transistors and a source coupled to the source of the first transistor, wherein an output signal is provided by the drains of the first and second transistors. A load is coupled to the drains of the first and second transistors. The zero current detector also includes a fourth transistor having a current path coupled between the source of the second transistor and the second terminal of the power transistor and a gate for receiving a control signal.
摘要:
A multicast test of an Internet Protocol (IP) network is performed with an initial multicast probing frequency. The multicast probing frequency of the multicast test is increased, and an impairment of the IP network based on the multicast test is detected based on the multicast test. Based on detecting the impairment, a unicast test is performed at one or more segments of the IP network. Based on the unicast test, an impaired segment of the IP network is identified.
摘要:
Systems and devices relating to an integrated housing for microinverters. The housing has a cavity for housing the circuitry of the microinverter. The housing is mountable on a back sheet of a PV module by way of the housing's top cover. An opening at the back of the housing accommodates DC contacts coming from the PV module while a void configured for an output port is also present in the housing. When mounted on the PV module, the housing is spaced apart from the module.
摘要:
Disclosed are pyrimidine derivatives for use as a sphingosine 1-phosphate 1 (S1P1) receptor agonists, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of conditions or diseases mediated by S1P1 receptors, particularly multiple sclerosis.
摘要:
A boost converter includes an input terminal and an output terminal. A first switch is connected between a first intermediate node and a reference potential node. An inductive component is connected between the input terminal and the first intermediate node. A rectifying component is connected between the first intermediate node and a second intermediate node. A multi-state module is connected between the second intermediate node and the output terminal, and has at least a low resistance state and a high resistance state. A control module is coupled to the output terminal, the first switch and the multi-state module, and is operable in response to an output voltage to control the first switch and the multi-state module so that the first switch is open and the multi-state module is in the high resistance state if the output voltage is lower than a threshold value.