摘要:
A cementing assembly is mounted to a lower end of a running string. The running string has an obstruction in it such as a cable preventing a wiper dart from passing through. A production string liner wiper plug is secured to the running tool with a shear pin or other device. A dart is temporarily suspended above the liner wiper plug in a manner that cement can be pumped around the dart and through an open bore in the wiper plug. Picking up to let dogs extend followed by setting down releases the dart. Picking up again exposes a lateral port to circulate out contaminated cement. Setting down closes the port and pressure launches the plug to push the cement into the annulus surrounding the string being run in. A passage without restrictions results at the top of the cemented string after the running tool is pulled out of the hole.
摘要:
A composition is formed by the step of feeding a molecule that has an active oxygen-forming species into a silicone based polymer. The silicone-based polymer is substantially free of pendant groups that are reactive with active oxygen species. Silicone-based polymers have proven scar-healing properties. As such, the composition is useful for treating skin disorders, especially scars, to reduce the appearance of the scars. Furthermore, bacteria and infections may contribute to the formation of scars. The active oxygen-forming species form active oxygen species, which oxidize pathogens including bacteria, viruses, and fungus to sterilize an area in contact with the composition. As a result, the appearance of scars treated with the composition may be even further reduced due to the presence of the molecule having the active oxygen-forming species.
摘要:
According to the system and the method of the present invention, a display's visibility is maintained depending on lighting conditions that are sensed by an ambient light sensor (16). Logic (10) is applied to the output of the light sensor (16) and in conjunction with a headlight status indicator (14) to determine whether daytime (D) or nighttime (N) lighting condition exists and to determine a brightness level (18) to be commanded to the display. The logic (10) of the present invention maintains a visible display even in situations where a vehicle's headlights are active during daylight lighting conditions.
摘要:
A drilling wedge that has, in addition to a normal connector rod, two wings that extend from the sides of the wedge. These wings are angular members that fill much of the space in the larger casing around the wedge. These wings prevent a milling assembly from sliding past the wedge or from moving off to the side, where an exit through the pipe or casing in the wrong place can occur. Instead, the wings help to keep the milling assembly in the proper position on the tray of the wedge to ensure that the milling assembly reaches the proper exit point in the casing. The wings are retracted when the HEW is deployed through the narrower pipe. Once the HEW is properly positioned, the guide cone is extended and the wings are deployed.
摘要:
The present invention relates to a photosensitive composition comprising synthetic nanocrystalline hydroxyapatite or a synthetic precursor thereof doped with a rare earth ion, the use of the composition in restorative or cosmetic dentistry, a process for preparing the composition and a method of generating an image of an exposed dentinal surface of a tooth.
摘要:
A method and computer program product for scheduling product lots through operations of a manufacturing line. The method including: selecting a set of sequential operations required to manufacture the lots; partitioning the product lots into designated lots and non-designated lots; and generating a release schedule for each of the non-designated lots into one or more operations of the set of sequential operations; generating a release schedule for each of the designated lots into each operation of set of sequential operations such that for each designated lot a total amount of time measured from completion of a first operation of the set of sequential operations through start of a last operation of the set of sequential operations does not exceed a target amount of time for the designated lots.
摘要:
A method and computer program product for scheduling product lots through operations of a manufacturing line. The method including: selecting a set of sequential operations required to manufacture the lots; partitioning the product lots into designated lots and non-designated lots; and generating a release schedule for each of the non-designated lots into one or more operations of the set of sequential operations; generating a release schedule for each of the designated lots into each operation of set of sequential operations such that for each designated lot a total amount of time measured from completion of a first operation of the set of sequential operations through start of a last operation of the set of sequential operations does not exceed a target amount of time for the designated lots.
摘要:
The invention provides a brightness control system for a backlight display device that uses the efficiency of the backlight to control the backlight to a desired brightness or luminance. The backlight display device may have a display panel, a backlight, a temperature measurement device, and control circuitry. The control circuitry provides a drive current to the backlight in response to a backlight efficiency and a desired brightness signal. The backlight efficiency is a function of the backlight temperature. The brightness control system may maintain the desired brightness throughout the dynamic range of the backlight display device.
摘要:
Removal of iron from aluminous material such as bauxite is effected by treatment with a gas mixture comprising sulphur dioxide and carbon monoxide in a first step, followed by chlorination in a second step whereby ferric chloride is produced and removed by volatilization. Aluminium chloride of low iron content may be obtained from the purified aluminous material by chlorination.