Abstract: The present disclosure provides a risk assessment method of water inrush in tunnels constructed in water-rich grounds. The method includes the following steps: simulating a tunnel excavation process by finite element software MIDAS GTS NX and fluid-structure interaction; according to a research method of control variables, analyzing effects of a groundwater level, an elastic modulus and advanced pipe shed grouting on the stability of surrounding rock, and improving an algorithm of a radial basis function (RBF) neural network using a Grey Relation Analysis (GRA)-based Partitioning Around Medoid (PAM) clustering algorithm to assess risks of water inrush occurring in Qingdao area.

Abstract: A self-calibration detection device and a temperature demodulation method oriented to a fiber Raman temperature sensing system. The self-calibration detection device comprises a fiber Raman thermodetector, thermostatic baths, a multi-mode sensing fiber, and a multi-mode reflector. The fiber Raman thermodetector comprises a pulsed laser whose output end is connected to the input end of a WDM. Two output ends of the WDM are respectively connected to input ends of a first and second APDs. Output ends of the first and second APDs are respectively connected to input ends of a first and second LNAs. Output ends of the first and second LNAs are connected to the input end of a data acquisition card whose output end is connected with the input end of a computer. The temperature demodulation method can solve the problems of low temperature measuring accuracy, lower temperature measurement stability and low temperature measurement efficiency.

Abstract: An operating mechanism of a circuit breaker that includes a bracket, a rocker arm assembly, a jump buckle, a latch, a re-buckle, a first crank, a first spring and a first connecting rod, the jump buckle is in latching fit with the latch, and the re-buckle is in limiting fit with the latch; one end of the first crank is pivotally disposed on the jump buckle around a first axis, and the other end of the first crank is rotatably connected to one end of the first connecting rod around a second axis; the rocker arm assembly is driving fit with the first crank through the first spring; and slide rails disposed on the bracket and a slider slidably disposed on the slide rails, rotatably connected to the other end of the first connecting rod, and in driving fit with a moving contact mechanism of the circuit breaker.

Abstract: A moving contact mechanism with a contact support that rotates around a third axis, a moving contact pivotable around a contact axis, and both ends of the contact spring are a third end of the spring and a fourth end of the spring, respectively, which are rotatably connected to the moving contact and the contact support respectively. A geometric axis of the contact spring is a second axis line located on one side of the third axis when the moving contact is normally on or off. The contact spring keeps the moving contact in an on or off state. The moving contact rotates relative to the contact support when repelled, drives the contact spring to rotate around the fourth end of the spring, so that the second axis line swings to the other side of the third axis, and remains in a temporary breaking position.

Abstract: An operating mechanism of a circuit breaker, wherein two ends of a first spring are rotationally connected to a rocker arm assembly and a first crank through a first spring shaft and a second spring shaft respectively, and one end of a jump buckle is rotationally connected to a bracket and is a jump buckle pivoting end; a jump buckle hole of the jump buckle is aligned with a bracket hole of the bracket; the first spring shaft is in limiting fit with the jump buckle; and one end of the first crank swings in a direction away from the jump buckle pivoting end, such that a spacing between the first spring shaft and the second spring shaft is smaller than or equal to the length of the first spring, and a first assembly state is formed.

Abstract: Embodiments of the present invention provide a virtual machine specification adjustment method and apparatus, where the virtual machine specification adjustment method includes: acquiring running status information of a virtual machine; determining, according to the running status information of the virtual machine, whether the virtual machine is a to-be-adjusted virtual machine; and if the virtual machine is a to-be-adjusted virtual machine, adjusting a specification of the to-be-adjusted virtual machine by using a resource in a reserved resource pool. By using the technical solutions of the present invention, efficiency of virtual machine specification adjustment is improved, thereby increasing a resource utilization rate of a data center.

Abstract: The present invention relates to the preparation of anti-tumor drugs with andrographolide derivatives, which belongs to the field of pharmaceutical technology, and involves 15-benzylidene substituted derivatives of 14-deoxy-11,12-didehydro-andrographolide and their 3,19-ester derivatives. Proved by the experiments, these compounds significantly inhibited the colony formation and migration ability of various cancer cells, and also inhibited the migration ability of vascular endothelial cells in vitro. The compounds of this invention significantly inhibited the tumor growth, invasion, metastasis and angiogenesis on mouse xenograft models, and inhibited the experimental lung metastasis of B16-F10 malignant melanoma cells. Therefore, this class of compounds could be used as the active ingredients for the preparation of antineoplastic drugs, which are of efficiency and low-toxicity.

Abstract: Embodiments of the present invention provide a virtual machine specification adjustment method and apparatus, where the virtual machine specification adjustment method includes: acquiring running status information of a virtual machine; determining, according to the running status information of the virtual machine, whether the virtual machine is a to-be-adjusted virtual machine; and if the virtual machine is a to-be-adjusted virtual machine, adjusting a specification of the to-be-adjusted virtual machine by using a resource in a reserved resource pool. By using the technical solutions of the present invention, efficiency of virtual machine specification adjustment is improved, thereby increasing a resource utilization rate of a data center.

Abstract: A process is described for producing a hydrocarbon product. In examples, the process comprising contacting a feedstock with a catalyst composition in the presence of hydrogen, the feedstock including a lipid, and the catalyst composition being active for conversion of the lipid to the hydrocarbon product in a single step. The catalyst composition comprises an M1-8 Sup] catalyst, where M1 is an active metal and [Sup] comprises an acidic support. In examples described, the process is used in the production of diesel-range fuel and/or jet fuel from lipid having a high yield of C11-C24 branched alkanes with high cetane value and low freeing point. In examples, the hydrocarbon product includes greater than 70% measured by weight of C11-C24 alkanes based on the weight of the lipid, and the content of branched alkanes of the C11-C24 alkanes is greater than 60% measured by weight of branched C11-C24 alkanes based on the weight of the C11-C24 alkanes.

Abstract: The present invention relates to a method for producing lubricating base oil with a low cloud point and a high viscosity index. In the method, a lubricating base oil with a low pour point, a low cloud point and a high viscosity index is produced by a hydrorefining-isomerization/asymmetrical cracking-hydrofinishing in the presence of hydrogen, wherein a highly waxy heavy fraction oil having an initial boiling point of 300° C. to 460° C., a wax content of 5% or more, a pour point of ?20° C. or more and a cloud point of ?5° C. or more is used as a raw material, and naphtha and middle fraction oil being co-produced. The method is characterized mainly in the high yield of heavy base oil, a low pour point and cloud point, a high viscosity and viscosity index of the base oil.

Abstract: The present invention relates to the preparation of anti-tumor drugs with andrographolide derivatives, which belongs to the field of pharmaceutical technology, and involves 15-benzylidene substituted derivatives of 14-deoxy-11,12-didehydro-andrographolide and their 3,19-ester derivatives. Proved by the experiments, these compounds significantly inhibited the colony formation and migration ability of various cancer cells, and also inhibited the migration ability of vascular endothelial cells in vitro. The compounds of this invention significantly inhibited the tumor growth, invasion, metastasis and angiogenesis on mouse xenograft models, and inhibited the experimental lung metastasis of B16-F10 malignant melanoma cells. Therefore, this class of compounds could be used as the active ingredients for the preparation of antineoplastic drugs, which are of efficiency and low-toxicity.

Abstract: An apparatus and a method that increase the concentration of recycled hydrogen in the hydrogenation unit are disclosed having a hydration separation unit included between the high-pressure separator and hydrocracking reactor. A part of the recycled hydrogen contacts with the water-in-oil microemulsion to form hydrates from which the light hydrocarbon components are removed. The gas flow entering into the hydration separation unit is present in amount of 20%˜100% of the total gas flow coming from the high-pressure separator; the water-in-oil microemulsion, in which the volume ratio of oil and water is 1:1 to 5:1 may increase hydrogen partial pressure in the reactor and thus upgrade the performance of hydrogenation.

Abstract: An apparatus and a method that increase the concentration of recycled hydrogen in the hydrogenation unit are disclosed having a hydration separation unit included between the high-pressure separator and hydrocracking reactor. A part of the recycled hydrogen contacts with the water-in-oil microemulsion to form hydrates from which the light hydrocarbon components are removed. The gas flow entering into the hydration separation unit is present in amount of 20%˜100% of the total gas flow coming from the high-pressure separator; the water-in-oil microemulsion, in which the volume ratio of oil and water is 1:1 to 5:1 may increase hydrogen partial pressure in the reactor and thus upgrade the performance of hydrogenation.

Abstract: This application provides processes for recovering hydrogen, ethylene and ethane from dry gas or separating ethylene cracked gas from dry gas of refinery plants, wherein a hydrating separation may be combined with for example a freezing or absorbing separation so as to separate a multiple gas mixture.