Abstract: A method for preparing methyl formate in which a raw material containing formaldehyde, methanol and/or dimethyl ether is introduced into a first reaction zone to come into contact with a catalyst A, and a component I is obtained by separation, the component I is introduced into a second reaction zone to come into contact with a catalyst B so as to obtain, by separation, methyl formate as a product, dimethyl ether that is returned to the first reaction zone and a component II that is returned to the second reaction zone, the catalysts have a long service life, the reaction conditions are mild, and the utilization rate of the raw material is high, thus enabling a continuous production for large-scale industrial application.

Abstract: A method for preparing a polyoxymethylene dimethyl ether carbonyl compound and/or methyl methoxyacetate as intermediates for producing ethylene glycol, which comprises passing a raw material: polyoxymethylene dimethyl ether or methylal together with carbon monoxide and hydrogen gas through a reactor carrying an acidic molecular sieve catalyst, and performing a reaction to prepare a corresponding product under an appropriate condition where no other solvent is added, in which the process of the reaction is a gas-liquid-solid three-phase reaction, the raw material of polyoxymethylene dimethyl ether or methylal has a high conversion rate, each product has a high selectivity, the catalyst has a long service life, additional solvents are not required to be used, and reaction conditions are relatively mild.

Abstract: A method for preparing a polyoxymethylene dimethyl ether carbonyl compound and/or methyl methoxyacetate as intermediates for producing ethylene glycol, which comprises passing a raw material: polyoxymethylene dimethyl ether or methylal together with carbon monoxide and hydrogen gas through a reactor carrying an acidic molecular sieve catalyst, and performing a reaction to prepare a corresponding product under an appropriate condition where no other solvent is added, in which the process of the reaction is a gas-liquid-solid three-phase reaction, the raw material of polyoxymethylene dimethyl ether or methylal has a high conversion rate, each product has a high selectivity, the catalyst has a long service life, additional solvents are not required to be used, and reaction conditions are relatively mild.

Abstract: A method for producing ethanol and coproducing methanol on a catalyst in a reactor using a co-feed of a synthesis gas and acetate as a reaction raw material comprising passing a raw material gas containing an acetate and a synthesis gas through a reactor loaded with a catalyst to produce ethanol and coproduce methanol under conditions of a reaction temperature of 150-350° C., a reaction pressure of 0.1-20.0 MPa, a reaction volume hourly space velocity of 100-45000 mlg?1h?1, and an acetate weight hourly space velocity of 0.01-5.0 h?1; and the active components of the catalyst are copper and optionally zinc and/or aluminum, which greatly facilitates the conversion of carbon monoxide to methanol, while an extremely high activity of acetate hydrogenation is maintained.

Abstract: The present invention provides a method for preparing methyl acetate, in which a feed gas containing an organic amine, dimethyl ether, carbon monoxide and optional hydrogen gas goes through a reactor loaded with a H-type mordenite catalyst, to produce methyl acetate; wherein said H-type mordenite catalyst is a H-type mordenite catalyst with adsorption of an organic amine. The method in the present invention improves the catalyst stability and prolongs the catalyst life, by using the H-type mordenite catalyst with adsorption of an organic amine as the catalyst and adding the organic amine in the feed gas to replenish the organic amine desorbed from the catalyst during the reaction.

Abstract: The present invention provides a method for preparing methyl acetate, in which a feed gas containing an organic amine, dimethyl ether, carbon monoxide and optional hydrogen gas goes through a reactor loaded with a H-type mordenite catalyst, to produce methyl acetate; wherein said H-type mordenite catalyst is a H-type mordenite catalyst with adsorption of an organic amine. The method in the present invention improves the catalyst stability and prolongs the catalyst life, by using the H-type mordenite catalyst with adsorption of an organic amine as the catalyst and adding the organic amine in the feed gas to replenish the organic amine desorbed from the catalyst during the reaction.

Abstract: Initially the amount of data is checked to determine whether a sufficient history is present for the method. Credit card accounts are classified as new, relatively new, and old cards, i.e. opened within six months, within twelve months, and over twelve months ago. The balances for each of the three categories are calculated for each month. The average balance percentages of cards opened within six months and twelve months for the last twenty-four months is calculated and teaser surfers are defined as either having average percentages within the last twenty-four months for all credit cards opened within six and twelve months are greater than predefined percentages.

Abstract: A method and apparatus to enable a position of an image to be identified and to enable the image to be recognized reliably even when the image is unclean or external disturbance light is irradiates the image. On a assumption that a binarization threshold value is calculated for every block based on the maximum and minimum values of the brightness values in code symbol data, plural adjacent blocks, the threshold values of which are calculated, are grouped to generate groups. The area of each of the groups thus generated is compared with a predetermined area for a comparison standard and if the area of each of the groups thus compared is larger than that, these groups are selected. The position of the selected groups is identified. Brightness value of the code symbol data are binarized using the threshold value for every block in the selected groups.

Abstract: In an optical code reader, at least a selected one of AGC processing and automatic focus control is performed in parallel with optical code decoding. Preferably, the selected process is initiated ahead of any signal which initiates decoding. Preferably, the selected process is performed periodically and independently of any signal which initiates decoding. In an embodiment, decoding and the selected processes are performed by different first and second processors, respectively, which operate in parallel, and the second processor performs the selected process without the first processor exercising any control over the performance of the selected process.

Abstract: A method and apparatus to enable a position of an image to be identified and to enable the image to be recognized reliably even when the image is unclean or external disturbance light is irradiates the image. On a assumption that a binarization threshold value is calculated for every block based on the maximum and minimum values of the brightness values in code symbol data, plural adjacent blocks, the threshold values of which are calculated, are grouped to generate groups. The area of each of the groups thus generated is compared with a predetermined area for a comparison standard and if the area of each of the groups thus compared is larger than that, these groups are selected. The position of the selected groups is identified. Brightness value of the code symbol data are binarized using the threshold value for every block in the selected groups.

Abstract: In an optical code reader, at least a selected one of AGC processing and automatic focus control is performed in parallel with optical code decoding. Preferably, the selected process is initiated ahead of any signal which initiates decoding. Preferably, the selected process is performed periodically and independently of any signal which initiates decoding. In an embodiment, decoding and the selected processes are performed by different first and second processors, respectively, which operate in parallel, and the second processor performs the selected process without the first processor exercising any control over the performance of the selected process.

Abstract: Initially the amount of data is checked to determine whether a sufficient history is present for the method. Credit card accounts are classified as new, relatively new, and old cards, i.e. opened within six months, within twelve months, and over twelve months ago. The balances for each of the three categories are calculated for each month. The average balance percentages of cards opened within six months and twelve months for the last twenty-four months is calculated and teaser surfers are defined as either having average percentages within the last twenty-four months for all credit cards opened within six and twelve months are greater than predefined percentages.

Abstract: Initially the amount of data is checked to determine whether a sufficient history is present for the method. Credit card accounts are classified as new, relatively new, and old cards, i.e. opened within six months, within twelve months, and over twelve months ago. The balances for each of the three categories are calculated for each month. The average balance percentages of cards opened within six months and twelve months for the last twenty-four months is calculated and teaser surfers are defined as either having average percentages within the last twenty-four months for all credit cards opened within six and twelve months are greater than predefined percentages.

Abstract: A method and apparatus for identifying cross-selling opportunities based on profitability analysis in addition to association analysis are provided. With the apparatus and method, product holding and service information is extracted for each customer of an enterprise. The product or service profits are then calculated and categorized into profit levels. These profit levels are then embedded into the product/service information and is formatted for data mining. Data mining is then performed on the embedded and formatted data. The data mining results in an association analysis generating association rules. The association rules that result in a net profit for the enterprise as determined from the embedded profit levels, are identified. These association rules are then used to identify the customers to which cross-selling of the products/services in the association rule may be offered.

Abstract: A method and apparatus for identifying cross-selling opportunities based on profitability analysis in addition to association analysis are provided. With the apparatus and method, product holding and service information is extracted for each customer of an enterprise. The product or service profits are then calculated and categorized into profit levels. These profit levels are then embedded into the product/service information and is formatted for data mining. Data mining is then performed on the embedded and formatted data. The data mining results in an association analysis generating association rules. The association rules that result in a net profit for the enterprise as determined from the embedded profit levels, are identified. These association rules are then used to identify the customers to which cross-selling of the products/services in the association rule may be offered.

Abstract: Initially, customer time series credit files are acquired. The credit files are organized in a data mart environment for supporting a query system. Time series utilization attributes are created and a neural network time series segmentation process is applied and N×N dimension segments are generated for analysis. The chart may be modified to more accurately depict profitable credit revolvers. Credit data from each potential new customer is processed in a similar fashion by the neural network segmentation process. Profitable credit revolvers are identified by having credit utilization patterns belonging to profitable segments previously identified.