摘要:
The present invention provides a water soluble vinyl monomer containing a vicinal diol group of the general formula: ##STR1## wherein R.sub.1 is hydrogen or methyl; R.sub.3 and R.sub.4 are independently methyl or ethyl; Y is oxygen or NH; X.sup.- is a halogen, sulfate, CH.sub.3 SO.sub.4.sup.- or C.sub.2 H.sub.3 SO.sub.4.sup.- or CH.sub.3 COO.sup.- and n is 2 or 3. Polymers containing the monomer when crosslinked in aqueous fluids form high viscosity gels which are stable at high temperatures and can be used in carrying out completion, stimulation, enhanced production and other treatments in subterranean formations.
摘要翻译:本发明提供一种水溶性乙烯基单体,其含有下列通式的连环二醇基团:其中R 1是氢或甲基; R3和R4独立地是甲基或乙基; Y是氧或NH; X-是卤素,硫酸根,CH 3 SO 4 - 或C 2 H 3 SO 4 - 或CH 3 COO-,n是2或3.在含水流体中交联时含有单体的聚合物形成高粘度凝胶,其在高温下是稳定的并且可以用于完成 ,刺激,增强生产和其他处理在地下地层。
摘要:
The present invention provides vicinal diol containing monomers and polymers and methods of preparing and using such monomers and polymers. When crosslinked in aqueous fluids, the polymers form high viscosity gels which are stable at high temperatures.
摘要:
A segmented display system in which the display devices are arranged in a N×1 array is described. The segmented display system includes a plurality of projection devices that each project a portion of an image on a corresponding one of the display devices in the N×1 array. Distortion at the seams between display devices in the N×1 array are minimized by aligning each projection device using a lens mounting based on the position of such projection device in the N×1 array.
摘要:
A method of making a processed cheese with improved firmness comprises mixing a protein cross-linking enzyme and optionally first other ingredients with a cheese material having a pH of less than 5.6, a moisture content of less than 60% and preferably containing one or more coagulating agents, to form a mixture; providing temperature and pH conditions and allowing time for the enzyme to react with protein in the mixture to cross link at least a portion of the protein; and combining one or more emulsifying agents and optionally second other ingredients with the mixture and heating the combination to thereby produce processed cheese from the combined cheese material contain cross-linked proteins, emulsifying agents and optional first and second other ingredients.
摘要:
One embodiment of the present invention provides a system that uses three-dimensional (3D) rendering effects within a 3D graphical user interface (GUI) to enable a user to efficiently visualize and navigate through complex source code structures. During operation, the system receives a request to display a set of source code files in a 3D GUI. Next, in response to the request, the system displays each source code file as a scaled-down version of the actual source code within a box in the 3D GUI, wherein the box is scaled to fit within a viewing window of the 3D GUI regardless of the length of the source code in the file. Note that the scaled-down source code within the box preserves the structure of the actual source code file, including line lengths and indentations. The system also displays calls between source code files as links between source code lines associated with the calls, wherein the links form a call-graph between the set of source code files.
摘要:
A combination mobile terminal and camera comprising a housing and a camera device integrated into a first portion of the housing. The camera device and the first portion of the housing in which the camera is integrated are moveable between a first position where the first portion of the housing is substantially aligned with a remaining second portion of the housing and a second misaligned position. In the first position, the camera may be oriented substantially parallel to a keypad, keyboard, or display in the housing. Individual buttons of a keypad on the housing may be used to control mobile terminal functions in one mode and camera functions in another mode. Certain individual buttons of the keypad may be rotatable with the camera. The alignment of the camera is such that it is possible to add additional optical elements to the optical path.
摘要:
An improved, unattended, liquid pumping device for oil and gas wells featuring a bellows controlled flow valve that opens and closes at preset pressures. The liquid pumping device may operate within a liner suspended into the well. The liquid pumping device may also include sealing elements configured to deform radially to allow the pumping device to pass through restrictions in the well or liner.
摘要:
A combination mobile terminal and camera comprising a housing and a camera device integrated into a first portion of the housing. The camera device and the first portion of the housing in which the camera is integrated are moveable between a first position where the first portion of the housing is substantially aligned with a remaining second portion of the housing and a second misaligned position. In the first position, the camera may be oriented substantially parallel to a keypad, keyboard, or display in the housing. Individual buttons of a keypad on the housing may be used to control mobile terminal functions in one mode and camera functions in another mode. Certain individual buttons of the keypad may be rotatable with the camera. The alignment of the camera is such that it is possible to add additional optical elements to the optical path.