摘要:
A phase-locked loop (PLL) architecture (100) is provided that includes a voltage-controlled oscillator (VCO) (116). The PLL architecture (100) also includes a digital calibration loop (132) coupled to the VCO (116). The digital calibration loop (132) implements a digital filter (126) to provide a digital control to the VCO (116) for centering a VCO frequency output. The PLL architecture (100) also includes an analog calibration loop (130) coupled to the VCO (116). The analog calibration loop (130) provides an analog control to the VCO (116) for adjusting the centered VCO frequency output.
摘要:
A mallet-style golf ball putter with a hollow pipe component that has generally the same diameter as a golf ball, is positioned about the sweet spot in the vertical and lateral dimensions on the putter striking face, and extends longitudinally towards the rear of the putter to assist the golfer to align the striking face of the putter with the golf ball when in an address position and with the intended line of putt during takeback and follow-through. Peripheral weighting further enhances the moment of inertia of the golf putter head. The pipe component so designed permits a visual alignment of the striking face with the golf ball in the lateral and vertical dimensions and for a smooth perpendicular stroke along an axis of the pipe.
摘要:
An oral care composition having a first phase of clinically efficacious 2,4,4′-trichloro 2′-hydroxydiphenyl ether admixed in a first orally acceptable aqueous vehicle, and a second phase having a stannous salt (such as stannous fluoride) admixed in a second orally acceptable aqueous vehicle. The second phase has no less than 10 molar percent of soluble stannous ion respective to a mathematical sum of moles of the soluble stannous ion and moles of the stannous salt in the second phase. In one embodiment, the two phases are provided in a dual-tube toothpaste oral care kit.
摘要:
A method of using heat resistant hollow sphere polymers having a core stage that has been swollen with a hard or fixed base, in applications in which the hollow sphere polymer is exposed to temperatures of from 100° C. to 350° C., is disclosed. Articles made by the method are also disclosed.
摘要:
The present invention relates to a coated paper product and the method for producing the same. High levels of an organic pigment, an inorganic pigment, relatively high levels of a binder, as well as, water are combined to form a coating composition which is applied to a low weight paper web. Then, the coated paper web is dried and calendered at relatively low calender intensity. A high bulk low weight or ultra-low weight coated paper product results which exhibits optical and printing properties comparable to its heavier counterparts.
摘要:
A control device processes or agricultural sprayer. A slip member biased by a retaining member and springs to an initial neutral position produces a signal by a sensor upon initiation or cessation of angular forces from rotation of a machine driven shaft. The signal is caused by movement of the slip member from friction produced by an impeller situated within the grease filled slip member. The impeller is coupled directly or indirectly to the machine driven shaft and rotates upon rotation of the shaft. Upon initiation of angular forces on the impeller, the signal produced may cause a valve on an agricultural sprayer to open and initiate spraying therefrom. Upon cessation of angular forces on the impeller, the valve may be closed to turn off the spraying.
摘要:
A power supply comprising a switching converter capable of being controlled by a control signal to provide a desired output from a DC input voltage, an analog to digital converter receiving as analog inputs a gate drive voltage of at least one switch of the switching converter, a temperature related measurement of the switching converter, the DC input voltage and an output current of the switching converter and converting the analog inputs to digital input signals, a digital processor receiving the digital input signals and generating the control signal to drive at least one switch of the switching converter to drive the output of the switching converter to the desired output and a memory storing data relating the digital input signals to the desired output of the switching converter and providing to the digital processor a memory output signal to enable the processor to generate the control signal to drive the at least one switch to provide the desired output from the switching converter.
摘要:
The present invention is directed to an apparatus for grinding or polishing at least one edge of a glass substrate. The apparatus includes an air bearing support member configured to pivot about an axis of rotation with zero frictional resistance opposing said pivotal movement. A grinding unit is coupled to the air bearing support member. The grinding unit is configured to apply a predetermined force normal to the at least one edge to remove a predetermined amount of material from the at least one edge. The predetermined force is directly proportional to the predetermined amount of material and less than a normal force resulting in glass substrate breakage.
摘要:
A fiber redirect system for use with a multi-axis robotic wrist and fiber placement system and methods of using the same. The fiber redirect system may include one or more redirect mechanisms configured to alter the path of one or more fiber tows fed from a creel assembly to a fiber placement head. The redirect mechanism may be located and configured so as to be centered about either the intersection of the pitch and yaw axes or the robotic wrist or the intersection of the yaw and roll axes of the robotic wrist. In one exemplary embodiment, a first redirect mechanism is centered about the intersection of the pitch and yaw axes, a second redirect mechanism is centered about the intersection of the yaw and roll axes and a third redirect mechanism may be centered about the roll axis.
摘要:
Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a trifluoromethyl-containing component and a hardenable material. Weatherable coatings are also provided by compositions comprising a mobile non-volatile fluorinated component and a hardenable material. Processes are also provided for forming hydrophobic coatings on articles.