摘要:
An apparatus for performing communication by a dual network terminal is disclosed. The dual network terminal is a dual network and dual standby terminal, and the apparatus includes an application subsystem, a 3G wireless communication subsystem, a 2G wireless communication subsystem and an identity identification module. The 3G wireless communication subsystem is connected with 2G wireless communication subsystem, and wireless protocol stacks of the 3G wireless communication subsystem and 2G wireless communication subsystem include a virtual identity identification card administration module respectively. A method for performing communication by a dual network terminal is disclosed, including the 3G wireless communication subsystem reading information of identity identification card in the first virtual identity identification card administration module of 2G wireless communication subsystem into an owned second virtual identity identification card administration module, communicating with 3G network by using information of identity identification card in the second virtual identity identification card administration module.
摘要:
A method for preparing catalyst coating on a metal base plate comprising: thermal-spraying a layer of a-aluminum oxide nano-particles on a metal base plate using a high temperature flame powder spray gun, at a temperature of 2500-3500° C. and a pressure of 0.2-1.2 MPa; coating an aluminum sol, the weight concentration of the aluminum sol aqueous solution being 2-30%, at a pH of 0.5-4, the drying temperature being 50-150° C., the drying time being 0.5-24 hours, the calcination temperature being 200-1200° C., and the calcination time being 0.5-24 hours; immersing in an active component, the immersing temperature being 20-120° C., the duration being 0.5-24 hours, the drying temperature being 50-150° C., the drying time being 0.5-24 hours, the calcination temperature being 200-1200° C., and the calcination time being 0.5-24 hours. The method is suitable for the preparation of various catalyst coatings with active components.
摘要:
A method of detecting arsenic comprising acidifying at least one sample comprising a known arsenic concentration, reducing arsenic in the sample having the known arsenic concentration to arsine, contacting the arsine in the sample having the known arsenic concentration with a reagent to produce a chemiluminescent emission, measuring the intensity of chemiluminescent emission produced by the sample having the known arsenic concentration, acidifying at least one sample comprising an unknown arsenic concentration, reducing arsenic in the sample having the unknown arsenic concentration to arsine, contacting the arsine in the sample having the unknown arsenic concentration with a photoagent to produce a chemiluminescent emission, measuring the intensity of chemiluminescence emission produced by the sample having the unknown arsenic concentration, and determining the arsenic content in the sample having an unknown arsenic concentration by comparing the intensity of chemiluminescent emission of the sample comprising a known arsenic concentration to the chemiluminescent emission of the sample comprising an unknown arsenic concentration, wherein the arsine is not subjected to a low-temperature trap prior to the reaction with a photoagent.
摘要:
A system of transactional processing between an information processing server and a plurality of workstations, constituted on the one hand by three files that reflect the states of progress of tasks assigned to the actor using this interface, that is, the "new" file (40), the "ongoing" file (50), and the "executed" file (60) that are stored in memory, the first containing the tasks newly assigned to the actor, the second containing the tasks accepted, that are in the course of being executed or have temporarily been suspended, and the third containing the tasks accomplished, sent to others or abandoned, and on the other hand, means with which the files can be opened, means for describing the files, and means for representing the notes received.
摘要:
A device for communication between at least one client and at least one server who are exchanging messages, characterized in that it includes a router which routes the messages between at least one client and at least one server with the aid of three message queues, including a first queue assigned to the router assuring the storage of the messages from clients or servers; a second queue assigned to the server enabling the reading of messages of requests formulated to the server; a third queue assigned to the client enabling the reading of response messages.
摘要:
The present invention provides feed additive to promote the growth of sows and piglets, which comprises serine, astragalus and ginseng leaves. The feed additive preferably contains: 50-60 wt % of the serine, 20-25 wt % of the astragalus, 20-25 wt % of the ginseng leaves and the balance of rice bran meal as a carrier. The invention also provides applications of the above-mentioned feed additive in promoting the growth of sows and piglets, that is, before feeding, make the serine content in the diet reach 0.69 wt % and incorporate it into the diet of gestational sows, and/or make the serine content in the diet reach 0.82 wt % and incorporate it into the diet of lactating sows.
摘要:
A method for preparing catalyst coating on a metal base plate comprising: thermal-spraying a layer of α-aluminum oxide nano-particles on a metal base plate using a high temperature flame powder spray gun, at a temperature of 2500-3500° C. and a pressure of 0.2-1.2 MPa; coating an aluminum sol, the weight concentration of the aluminum sol aqueous solution being 2-30%, at a pH of 0.5-4, the drying temperature being 50-150° C., the drying time being 0.5-24 hours, the calcination temperature being 200-1200° C., and the calcination time being 0.5-24 hours; immersing in an active component, the immersing temperature being 20-120° C., the duration being 0.5-24 hours, the drying temperature being 50-150° C., the drying time being 0.5-24 hours, the calcination temperature being 200-1200° C., and the calcination time being 0.5-24 hours. The method is suitable for the preparation of various catalyst coatings with active components.
摘要:
An apparatus for performing communication by a dual network terminal is disclosed. The dual network terminal is a dual network and dual standby terminal, and the apparatus includes an application subsystem, a 3G wireless communication subsystem, a 2G wireless communication subsystem and an identity identification module. The 3G wireless communication subsystem is connected with 2G wireless communication subsystem, and wireless protocol stacks of the 3G wireless communication subsystem and 2G wireless communication subsystem include a virtual identity identification card administration module respectively. A method for performing communication by a dual network terminal is disclosed, including the 3G wireless communication subsystem reading information of identity identification card in the first virtual identity identification card administration module of 2G wireless communication subsystem into an owned second virtual identity identification card administration module, communicating with 3G network by using information of identity identification card in the second virtual identity identification card administration module.
摘要:
Disclosed is a method for preparing 1-octene in the presence of a catalyst system for ethylene oligomerization, which includes: premixing a part of ethylene gas as raw material with a solvent, mixing with the components a+b, c and d of the catalyst system, and then sending in a reactor; directly sending the rest of ethylene gas in the reactor; discharging the resultant liquid from the upper part of the reactor into an overflow channel; adding a catalysis stopping agent to the overflow channel; and then separating the resultant liquid. The advantages of the method are high selectivity of 1-octene and high catalytic activity.
摘要:
The present invention relates to a catalyst composition for ethylene oligomerization and the use thereof. Such catalyst composition includes chromium compound, ligand containing P and N, activator and accelerator; wherein the chromium compound is selected from the group consisting of acetyl acetone chromium, THF-chromium chloride and Cr(2-ethylhecanoate)3; general formula of the ligand containing P and N is shown as: in which R1, R2, R3 and R4 are phenyl, benzyl, or naphthyl. R5 is isopropyl, butyl, cyclopropyl, cyclopentyl, cyclohexyl or fluorenyl; the activatior is methyl aluminoxane, ethyl aluminoxane, propyl aluminoxane and/or butyl aluminoxane; the accelerator is selected from the group consisting of 1,1,2,2,-tetrachloroethane, 1,1,2,2-tetrabromoethane, 1,1,2,2-tetrafluoroethane, and compounds having a formula of X1R6X2, in which X1 and X2 are F, Cl, Br, I or alkoxyl, R6 is alkylene or arylene group; the molar ratio of chromium compound, ligand containing P and N, activator and accelerator is 1:0.5˜10:50˜3000:0.5˜10. After mixing the four components mentioned previously under nitrogen atmosphere for 10 minutes, they are incorporated to the reactor, or these four components are incorporated directly into the reactor. Then ethylene is introduced for oligomerization. Such catalyst can be used in producing 1-octene through ethylene oligomerization. It is advantageous in high catalysing activity, high 1-octene selectivity, etc. The catalytic activity is more than 1.0×106 g product·ma−1 Cr·h−1, the fraction of C8 linear α-olefin is more than 70% by mass.