摘要:
An olefin hydration process and reactor are provided, wherein an integrated membrane selectively removes alcohol product from the reactor, thereby allowing for increased yields.
摘要:
Exemplary methods, apparatuses, and systems receive a first user action, by a user within a network service, with respect to a first object displayed or referenced on the network service. Demographic information for the user is received and a counter for a category representing the first user action, the first object, and the demographic information is identified and incremented. The demographic information may include a history of a second user action with respect to a second object. Counters with the highest values for a category represent the highest ranked objects in the category. Upon receipt of a request for a number of objects for the category, objects that correspond to counters with the highest values for the category are selected and transmitted as a ranked list of recommended objects for display by a user.
摘要:
Methods, systems, and apparatus, including computer program products, in which an input method editor receives Roman character inputs, identifies keywords for candidate sets of a non-Roman character, and identifies an associated resource location. Upon identifying an associated resource location, associating the resource location with the candidate set of non-Roman characters.
摘要:
Disclosed are a method and a device utilizing barcode images to communicate between a mobile terminal and a backend server and a mobile terminal thereof, which can correctly decode a barcode image of any code format, ensure the security of user information, and provide services on the side of the mobile terminal in the absence of the backend server. The method of the present invention includes the following steps: registering as a user of the backend server through the mobile terminal; taking a picture of the barcode image by using a camera disposed in the mobile terminal; decoding the taken barcode image to obtain coding information; parsing the coding information to determine whether the barcode image is generated according to a preset coding rule; the mobile terminal extracting service information corresponding to the coding information; the mobile terminal sending a service providing request message to the backend server; and the backend server providing a service to the mobile terminal according to content of the service providing request message.
摘要:
The present invention relates to a process for the preparation of 4-aminobenzoamidine (4-AMBA) salts of general formula (I) preferably the salts thereof with hydrochloric or hydrobromic acid, particularly preferred the dichloride salt.
摘要:
The invention is directed to a process for the production of high density polyethylene by polymerization of ethylene in the presence of a supported chromium oxide based catalyst and an activator characterized in that the activator comprises the reaction mixture of a boron compound and/or an alkyl aluminum compound and a nitrogen containing compound wherein the boron compound is a (C1-C10) alkyl boron compound or a (C5-C20) aromatic boron compound, wherein the alkyl aluminum compound is an organo aluminum compound having the formula AIR3 in which R is a hydrocarbon radical containing 1-10 carbon atom and wherein the nitrogen containing compound comprises —NH2, —NHR, —NR2, wherein R may be an alkyl or a substituted alkyl having from 1 to 40 carbon atoms.
摘要:
Mixed butenes from a cracking process, or raffmates of MTBE or tert-butyl alcohol (TBA), are simultaneously hydrated using water in the presence of a catalyst to produce sec-butyl alcohol (SBA) and ter-butyl alcohol as the principal products, the mixed butanols having utility as fuel additives, e.g., as oxygenates and octane enhancers to replace MTBE, and as a neat fuel.
摘要:
Processes for producing mixed alcohols from mixed olefins and the catalyst systems for making such alcohols are provided. Additionally, processes for producing fuel compositions having mixed alcohols prepared from mixed olefins are also provided as embodiments of the present invention. The catalyst systems include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.
摘要:
In response to a map task distributed by a job tracker, a map task tracker executes the map task to generate a map output including version information. The map task tracker stores the generated map outputs. The map task tracker informs the job tracker of related information of the map output. In response to a reduce task distributed by the job tracker, the reduce task tracker acquires the map outputs for key names including given version information from the map task trackers, wherein the acquired map outputs include the map outputs with the given version information and historical map outputs with the version information prior to the given version information. The reduce task tracker executes the reduce task on the acquired map outputs.
摘要:
Compression programming of a shape memory polymer without the requirement of added heat, wherein the programming occurs at a temperature below the glass transition of the shape memory polymer. The shape memory polymer can be either a thermoset or a thermoplastic shape memory polymer.