摘要:
A supercritical fluid chromatography system comprises a first pump for pumping a first flow stream comprising a compressible fluid and a second pump for pumping a second flow stream comprising a modifier fluid. The second pump is in parallel with the first pump. A column is located in a combined flow stream. The column is located downstream of the first and second pumps. The combined flow stream comprises the first flow stream, the second flow stream, and a sample. A detector is located downstream of the column. A gas-liquid separator is located downstream of the detector. The gas-liquid separator is configured to vent a majority of the compressible fluid while maintaining a majority of the sample, thus preventing aerosolization of the flow stream and minimizing sample loss as well as cross contamination. An open bed collector is located after the gas-liquid separator.
摘要:
A USB receptacle connector (1) comprises an insulative housing (10), a plurality of terminals (14) received in the insulative housing and a shell (11) covering the insulative housing. The frond end of the shell forms a mating port (111) for insertion of a mating plug connector (1′). Either of two sidewalls (112) of the mating port defines a contact tab (115) which makes the shell of the USB receptacle connector always contact with a shell (11′) of the mating plug connector. Thus, the two shells are continuously grounded so as to ensure reliable grounding and EMI shielding.
摘要:
A method of pre-controlling the shapes of a continuous-casting slab head and tail for reducing the cut amount of the head and tail of the hot rolling intermediate slab. The continuous-casting slab head and tail, is cut into a shape such that an end surface of the head concaves inwards and the tail projects outwards. The head and tail of a slab is cut in a curve that is symmetric to the center line in width thereof. Arc height, i.e. a maximum value of the concave amount at the head or that of the projection amount at the tail, is controlled within 0 mm-50 mm.
摘要:
A supercritical fluid chromatography system comprises a first pump for pumping a first flow stream comprising a compressible fluid and a second pump for pumping a second flow stream comprising a modifier fluid. The second pump is in parallel with the first pump. A column is located in a combined flow stream. The column is located downstream of the first and second pumps. The combined flow stream comprises the first flow stream, the second flow stream, and a sample. A detector is located downstream of the column. A gas-liquid separator is located downstream of the detector. The gas-liquid separator is configured to vent a majority of the compressible fluid while maintaining a majority of the sample, thus preventing aerosolization of the flow stream and minimizing sample loss as well as cross contamination. An open bed collector is located after the gas-liquid separator.
摘要:
A base station includes multiple edge nodes and a central node. The edge nodes are configured to perform communication with a user equipment, and execute baseband processing and mutual conversion between baseband data and radio data, in which the multiple edge nodes belong to one or more edge node groups, and each edge node group includes at least one edge node. The central node is configured to perform communication with the multiple edge nodes, manage the multiple edge nodes, and perform resource sharing so that resources are shared by the multiple edge nodes. The base station is divided into two levels of architecture, namely, a central node and an edge node, and the central node implements resource sharing so that resources are shared by the edge nodes, so that a resource sharing degree in the base station is enhanced.
摘要:
A method of pre-controlling the shapes of a continuous-casting slab head and tail for reducing the cut amount of the head and tail of the hot rolling intermediate slab. The continuous-casting slab head and tail, is cut into a shape such that an end surface of the head concaves inwards and the tail projects outwards. The head and tail of a slab is cut in a curve that is symmetric to the center line in width thereof. Arc height, i.e. a maximum value of the concave amount at the head or that of the projection amount at the tail is controlled within 0 mm-50 mm.
摘要:
A collection system for collecting samples from a flowstream (5) exiting a supercritical fluid chromatography system is provided. The collection system comprises: (i) a first back pressure regulator (10) on the flowstream as it exits the chromatography system, (ii) a gas-liquid separator (30) having a tapered and angled dripper (65), which introduces the flow into the separator at an angle tangential to the separator wall; and (iii) one or more fraction collectors (15), wherein the fraction collector is at a reduced pressure collection point, between 100 bar and atmospheric pressure. A collection system for HPLC is also provided, as well as a process for collection of samples from a flowstream.
摘要:
A base station includes multiple edge nodes and a central node. The edge nodes are configured to perform communication with a user equipment, and execute baseband processing and mutual conversion between baseband data and radio data, in which the multiple edge nodes belong to one or more edge node groups, and each edge node group includes at least one edge node. The central node is configured to perform communication with the multiple edge nodes, manage the multiple edge nodes, and perform resource sharing so that resources are shared by the multiple edge nodes. The base station is divided into two levels of architecture, namely, a central node and an edge node, and the central node implements resource sharing so that resources are shared by the edge nodes, so that a resource sharing degree in the base station is enhanced.
摘要:
A method and system of data communication, switching network board are disclosed. The data communication system includes multiple line card chassis, each including multiple line cards, at least one switching chip and at least one relay chip. The line card is respectively connected to the switching chip and the relay chip of the same line card chassis. The switching chip of one line card chassis is connected to the relay chip of at least one of other line card chassis. The relay chip of the one line card chassis is connected to the switching chip of the at least one of other line card chassis. The switching network board includes a switching chip and a relay chip. By implementing the above embodiments, the networking complexity is reduced, the networking cost is saved and the system reliability is enhanced in the case that a few line card chassis are cascaded.
摘要:
A collection system for collecting samples from a flowstream (5) exiting a supercritical fluid chromatography system is provided. The collection system comprises: (i) a first back pressure regulator (10) on the flowstream as it exits the chromatography system, (ii) a gas-liquid separator (30) having a tapered and angled dripper (65), which introduces the flow into the separator at an angle tangential to the separator wall; and (iii) one or more fraction collectors (15), wherein the fraction collector is at a reduced pressure collection point, between 100 bar and atmospheric pressure. A collection system for HPLC is also provided, as well as a process for collection of samples from a flowstream.