摘要:
Methods for separating casein from soluble proteins in a composition. The method includes: adding a phosphate solution to the composition, mixing to form a mixture, freezing the mixture to obtain a frozen mixture, thawing the frozen mixture to obtain casein-containing aggregates in the mixture, and then centrifuging the mixture to obtain a supernatant traction and a casein-precipitate fraction. The supernatant fraction contains the soluble protein, which may be isolated by subjecting the supernatant fraction to a purification process. The method can be applied to purify a recombinant protein from the milk of a transgenic mammal.
摘要:
A method for precipitating casein from a suspension comprising milk is disclosed. The method includes the following steps: adding a phosphate solution to a suspension; mixing the phosphate solution with the suspension to form a mixture having a phosphate concentration greater or equal to 40 mM; freezing the mixture having a phosphate concentration greater or equal to 40 mM to obtain a frozen mixture; and thawing the frozen mixture to obtain casein-containing aggregates in the mixture, in which the phosphate solution is buffered at a pH value of no less than 4.4.
摘要:
A cursor controlling device and the method thereof, the moving and positioning of the cursor on the computer display are controlled by said cursor controlling device through a controlling circuit, wherein said cursor controlling device is comprised of a case, an information carrier set, a reading set and a sliding bar set, wherein the information carriers are located on the same plane in parallel or are serially connected within the proper position of said case and they are overlapped with each other, another, each of the information carriers has a driving portion for being driven by said sliding bar set, and when said driving portions of the information carriers are serially connected and overlapped with each other, they may be installed internal or external the case. Besides, in the cursor control method of the present invention, there are two operating mode on the control circuit, wherein in the first operation mode, the movement of a finger controllable element is detected, and then the cursor is moved correspondingly; in the second operation mode, a virtual pointer area is installed so that as the finger controllable element is moved into this area, it is automatically converted into the operation of specified instruction to perform a bidirectional movement containing at least a scrolling operation, or it may be separated specially to increase a function in which the cursor may arrive at the boundry of hte virtual display, thus the moving area of said control device may be design within an area about 0.5 inch, and it may be mapped into the whole display by absolute coordinate. Besides, it has further space for programming the function of automatic scrolling and arriving at the boundary fast.
摘要:
The present invention discloses a high resolution finger controlling input device in an arbitrarily defined range which comprises a finger controlling element having a plurality of thin layered sensing surface, which when closely scribed, can produce 0 and 1 binary signals of displacement; and a formative positioning unit, capable of producing 0 and 1 signals in any defined range divided by the coordinate axes so that the cursor may correspondingly acquire the effective displacement and positioning in absolute coordinate mode. The finger controlling element may be formed with a touch input board with a input medium thereon. The input medium has a stopping end provided on touch input board in a short distance. The stopping end is formed into a rod or on end thereof is formed into a top pin for touching with finger to transmit finger force or human static electric charges, so that the cursor may stably perform fine displacement to correspond to each point on the display at any degree of resolution while the input medium is working at the limited region on the touch input board. The device of the present invention is a convenient, stable, precisely working and compact sized saving cost product.
摘要:
A finger-controlled device for pushing slide bars, including two sets of data carriers, two slide bars and a finger-controlled section for moving the slide bars. Each data carrier corresponds to a sensor for reading 0, 1 signals. Each data carrier has a central shaft disposed with a gear. A face of each slide bar is formed with a rack facing the central shaft for meshing with the gears. The finger-controlled section is movable relative to a housing having an interior chambers for receiving the data carriers, sensors and slide bars. Four side walls of the chamber are formed with through holes for the slide bars to pass therethrough. The housing restrains the slide bars to move relative to and across each other. In operation, the slide bars are moved relative to each other as the finger-controlled section is moved, whereby the data carriers are rotated by a fixed number of circles for use in absolute coordinate input alignment. The slide bars can be widened and thickened to have greater bending strength.
摘要:
A cursor control device for controlling the movement and positioning of a cursor on a computer includes a finger controllable member formed on the cursor positioning device. The cursor on the display is controllable either in X-axis or Y-axis direction by means of sliding the finger controllable member on the device. The cursor positioning device includes a displacement detecting structure for detecting the movement of the finger controllable member, and photo encoder detectors for detecting the operating situation of the X-axis and Y-axis photo encoders which are arranged in 90 degrees phase deference in space. In such an arrangement, the displacement of the finger controllable member in X-axis and Y-axis direction may be detected as coordinate date. The detected coordinate data is transmitted to a control circuit for further processes and then sent to a computer device.
摘要:
A method for managing tie-down information in a network management system for a telecommunications network including: providing tie-down information to the network management system associated with a plurality of tie-down demarcations using a tie-down information template comprising a plurality of tie-down information parameters associated with each of the plurality of tie-down demarcations, wherein the plurality of tie-down information parameters comprises a status; and updating the status associated with each of the plurality of tie-down demarcations based on network activity associated with the plurality of tie-down demarcations.
摘要:
A cursor control device, the input device thereof may be a mouse, a track ball, a hand writing plate, etc. Since at least two registers are installed on each axis of the input for counting the number of the signals 0 and 1, and presetting the rotary distance of each axis, and by a single operating mode, the movement of the input device may be detected, therefore, by the dedicated two axial mouse input device, the mouse may move in a very small range to generate an effect of an absolute coordinate positioning, and the controlled cursor may wholly correspond to any point on the display screen for accurate positioning.
摘要:
A finger rest structure of computer mouse, including a housing having a profile substantially suitable for manual operation of a user and a finger rest unit including at least one rest plate transversely projecting from a lateral side of the housing for a finger to rest thereon. Two rest plates are respectively disposed on left and right sides of the housing near front and rear ends. Alternatively, the rest plate is integrally connected along the rear side and a part of lateral side of the housing. Alternatively, the rest plates are pivotally and foldably connected with the housing or disposed at two ends of a rotary plate which is rotatably disposed under the housing, whereby the rest plate can be selectively extended or retracted. The rest plate serves to bear most of the weight of the hand and reduce the frictional force of the hand against the table face. Also, the rest plate enlarges the bottom area of the mouse, whereby the mouse can more closely attach to the table face during moving and the control of the mouse is facilitated.