摘要:
A method for stabilizing an enzyme during freezing, wherein the enzyme is in a zwitterionic buffer solution. The zwitterionic buffer is able to maintain the activity of the enzyme during freezing and thawing.
摘要:
A process for extracting metal values especially zinc values from aqueous solutions of metal salts which comprises contacting the aqueous solution with an organic phase comprising a compound of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4, independently, represents an optionally substituted hydrocarbyl or hydrocarbyloxy group or R.sup.1 and R.sup.2 together with the attached phosphorus atom and/or R.sup.3 and R.sup.4 together with the attached phosphorus atom form a 5- to 8-membered heterocyclic ring.
摘要:
A wheel assembly and a picnic table with the wheel assembly attached thereto includes a bracket which has an arm portion and a mounting flange portion. The mounting flange portion is inclined at an angle of about 65.degree. with respect to the longitudinal extent of the upper edge of the arm portion. The flange portion is attached to inner face of the leg of the article of furniture such that the wheel which is located at the distal end of the arm portion is in close proximity to the underlying support surface. When attached to the leg of the article of furniture, the wheel is aligned with a side edge of the leg so that it does not form an obstruction which would be encountered by the legs of a person seated on the furniture in use.
摘要:
An underreamer including a body having a bore therethrough, an arm mounted at its upper end to the body, a conical cutter mounted for rotation on the lower end of each arm, a cup-shaped thrust bearing between the cutter and the arm, means extending through the arm to secure the cutter on the arm including pin elements that extend into a groove in the cutter to prevent rotation movement between the arm and the thrust bearing to lock the thrust bearing to the arm. The arms are pivotally mounted in slots in the body and means are provided for moving the arms to their cutting position with their lower ends positioned radially outward from the body.
摘要:
Different gestures and actions are used to interact with spreadsheets. The gestures are used in manipulating the spreadsheet and performing other actions in the spreadsheet. For example, gestures may be used to move within the spreadsheet, select data, filter, sort, drill down/up, zoom, split rows/columns, perform undo/redo actions, and the like. Sensors that are associated with a device may also be used in interacting with spreadsheets. For example, an accelerometer may be used for moving and performing operations within the spreadsheet.
摘要:
The present invention relates to a dosing module (1) for dosing an urea-based reducing agent into a exhaust gas stream of combustion engine and addressed to an after-treatment system, (30) e.g. SCR or SCRT system. The module (1) comprises an housing (20) which develops along a longitudinal axis (X) and an inlet opening (19) for conveying the exhaust gas. Dosage means (55) are provided for dosing the reducing agent. According to the invention, the inlet opening is annular and inclined with respect to the axis (X) of the housing (20) so as to generate an exhaust gas inlet jet (AJ). Moreover the dosage means are designed so as to generate, inside the housing (20), an urea-based reducing agent spray (UWS) coaxial to the axis (X) of the housing (20).
摘要:
Solvent extraction compositions having an orthohydroxyaryloxime extractant, an anti-degradation agent, and a water-immiscible organic solvent, processes for extracting a metal from an aqueous acidic solution using same, and methods of reducing degradation of such compositions are provided herein.
摘要:
Processes for improving copper/iron selectivity in a solvent extraction circuit by contacting an acidic aqueous solution containing dissolved copper and iron ions with a solvent extraction composition including an orthohydroxyaryloxime, a selectivity modifier, and an equilibrium modifier, wherein the ratio of selectivity modifier to orthohydroxyaryloxime is from 0.001 to 0.05, thereby decreasing the copper:iron transfer ratio, are provided herein.
摘要:
A computerized system and method for managing parts shortages is disclosed. The computerized system and method analyzes inventory and production demand data over a period of time to whether the parts in inventory are sufficient to meet production demand. The projections allow a logistics provider to determine when parts shortages are likely to occur and the nature of the potential shortages. Information about the type and time of potential parts shortages allow the logistics provider to take action to prevent shortages entirely or minimize their impact on production. Some shortages may be covered by requesting delivery of parts from various locations within the site inventory or by locating parts within the site inventory. Other shortages may be covered by ordering more parts from suppliers. The ability to detect various types of shortages and take mitigating actions allow a logistics provider to maintain a flow of parts to production.
摘要:
A spreadsheet includes a native spreadsheet object that represents a person. The person object may be used within a spreadsheet just as any other spreadsheet objects are utilized. For example, the person object may be integrated with spreadsheet formulas and other spreadsheet objects such as charts, tables, pivot tables, sheets, and the like. Spreadsheet formulas may perform operations specific to a person object (e.g. send message, get contact information, get status, get other person specific information, sort, and the like). Common actions may be associated with the person object, such as initiating communication with the person represented by the person object (e.g. phone call, email, text message, collaboration invite, and the like). Social networking information may also be associated with a person object. For example, social networking posts may be included within a spreadsheet, a user may post to a social network from the spreadsheet, and the like.