Abstract:
A solar cell and method for producing same is disclosed. The solar cell includes a multijunction solar cell structure and a notch filter designed to reflect solar energy that does not contribute to the current output of the multijunction solar cell. By reflecting unused solar energy, the notch filter allows the solar cell to run cooler (and thus more efficiently) yet it still allows all junctions to fully realize their electrical current production capability.
Abstract:
The fluorinated curcuminoid (3,5-bis-(2-fluorobenzylidene)-piperidin-4-one-acetate is about ten times more effective at arresting the growth of tumor cells than cisplatin. The present invention provides methods to deliver a cytotoxic compound, such as a curcuminoid, specifically to cancer cells and to the vascular endothelial cells that nourish solid tumors. The method involves tethering the drug to a protein such as in factor VIIa that retains high affinity for the surface protein tissue factor. Upon complexation, the resulting heterodimer is endocytosed and the drug is subsequently liberated inside the target cell via proteolytic cleavage. The present invention further provides for the synthesis of novel curcuminoid-tether-linker-factor VIIa compositions and for methods of delivery of effective doses of the novel compositions to target tumor or endothelial cells in a patient
Abstract:
A method and system for controlling the wavelength of light emitted by a tunable laser. The system includes a wavelength tuner that provides information of a desired wavelength; a coupler for tapping a portion of the light from the tunable laser; and an apparatus for measuring the actual wavelength of the light. The apparatus takes the portion of the light as an input signal and splits the input signal into two beams that are directed through two paths of different optical lengths. Then, the two beams are interfered with each other in order to form a fringe pattern at an observation plane, where the fringe pattern is detected and analyzed to determine the wavelength of the light. A processor compares the difference between the desired and determined wavelengths, and sends a tuning signal to the tunable laser forming a feedback control of the tunable laser.
Abstract:
A system and method for transmitting data over a channel, in which the data are categorized in at least two different categories. For example, the data are categorized according to the effect on perceived degradation on the data when error mitigation is performed on the data. Corrupted data of the first category are replaced using a first replacement method, such as retransmission and forward error correction. The corrupted data of the second category are replaced using a second replacement method different from the first replacement method, e.g., error mitigation or interpolation.
Abstract:
Described is a novel relational database architecture that is adapted to storing information regarding the terms of one or more contracts, and the actions required to be performed under it. The database resides on a computer-readable storage medium as part of a multi-user computer network. By using simple subroutines readily apparent to one skilled in the computer arts, one can automatically generate alerts whenever an action needs to be performed. These alerts are then transmitted to users along the multi-computer network, appearing in an e-mail message that specifies the action, the individuals performing it, and the duties of each of these individuals. In this manner, one can ensure timely execution of the actions required under a contract.
Abstract:
A solar cell and method for producing same is disclosed. The solar cell includes a multijunction solar cell structure and a notch filter designed to reflect solar energy that does not contribute to the current output of the multijunction solar cell. By reflecting unused solar energy, the notch filter allows the solar cell to run cooler (and thus more efficiently) yet it still allows all junctions to fully realize their electrical current production capability.
Abstract:
The present invention provides synthetic methods and compositions for treatment of autoimmune and anti-inflammatory disorders comprising administering an effective amount of a derivative of triptolide alone or in combination or alternation with other anti-autoimmune or anti-inflammatory compounds.
Abstract:
Constrained paclitaxel derivatives include a bridge extending from the C-3′ phenyl to either the C4 or -3 positions. Many of the constrained paclitaxel derivatives provide activity comparable or superior to the natural product paclitaxel.
Abstract:
A heavy-duty flame propagation engine has control systems and exhaust aftertreatment systems adapted to provide ultra-low emissions relative to Diesel engines while achieving comparable fuel consumption at reduced emission levels. The control systems include exhaust gas circulation, variable valve actuation, cylinder deactivation, pilot fuel injection, high energy ignition systems and combinations thereof to provide substantially stoichiometric combustion conditions over an entire load range of the engine. In one embodiment, the engine has direct in-cylinder fuel injection, is adapted for lean air-fuel mixture operation, and includes an oxidation catalyst and a lean NOx adsorber.
Abstract:
A conveyor travels in a helical path and is driven by a plurality of drive sprockets which are mounted on a common drive shaft. Each drive sprocket includes a yieldable portion which moves relative to a ring gear of the sprocket when the conveyor encounters an unyielding resistance. A sensor is activated in response to relative movement of the yieldable portion of the sprocket to provide an indication of which drive sprocket has sensed the resistance to conveyor travel.