摘要:
A method and device for determining ionizing radiation. The method for determining ionizing radiation comprises the steps of applying a constant voltage across an organic semiconducting material sensor prior to and after exposure of the sensor to the ionizing radiation; measuring and converting the current passing through the sensor proportional to the conductivity or resistivity of the sensor which in turn is proportional to the ionizing radiation in the sensor, into a proportional analog voltage value; and if desired converting the analog voltage value into digital value; and comparing the analog/digital values obtained prior to and after exposure of the sensor to the ionizing radiation and computing the ionizing radiation based on the change in the analog/digital values. The electronic device for determining ionizing radiation comprises an organic semiconductor resistor (2) connected to a constant voltage source (3) and to a current to voltage converter (4), an analog to digital converter (5) connected to the current to voltage converter and a microprocessor (6) connected to the analog to digital converter.
摘要:
A method for determining ionizing radiation including applying a constant voltage across an organic semiconducting material sensor prior to and after exposure of the sensor to the ionizing radiation; measuring and converting the current passing through the sensor proportional to the conductivity or resistivity of the sensor which in turn is proportional to the ionizing radiation in the sensor, into a proportional analog voltage value; and comparing the value obtained prior to and after exposure of the sensor to the ionizing radiation and computing the ionizing radiation based on the change in the value. An electronic device for determining ionizing radiation including an organic semiconductor resistor, a constant voltage source, and to a current to voltage converter, an analog to digital converter, and a microprocessor.
摘要:
Chiral 1-(4-methylphenylmethyl)-5-oxo-{N-[(3-t-butoxycarbonyl-aminomethyl)]-piperidin-1-yl}-pyrrolidine-2-carboxamides as inhibitors of collagen induced platelet activation and adhesion The present invention provides chiral (2S)-1-(4-methyl-phenylmethyl)-5-oxo-(3S)—{N-[(3-t-butoxycarbonyl aminomethyl)]-piperidin-1-yl}-pyrrolidine-2-carboxamide, and (2S)-1-(4-methylphenylmethyl)-5-oxo-(3R)—{N-[(3-t-butoxycarbonyl amino methyl)]-piperidin-1-yl}-pyrrolidine-2-carboxamide of formula 6 and 7 respectively. The present invention also relates to use of these moieties as inhibitors of collagen induced platelet adhesion and aggregation mediated through collagen receptors. The present invention provides a process for preparation of chiral carboxamides of formula 6 and 7 using the process which has advantage to avoid any racemization at the a-carboxylic center, during N-alkylation. The reagent LiHMDS is used at low temperatures to furnish methyl N-(p methylphenylmethyl)lpyroglutamate in good chiral purity.
摘要:
Chiral 1-(4-methylphenylmethyl)-5-oxo-{N-[(3-t-butoxycarbonyl-aminomethyl)]-piperidin-1-yl}-pyrrolidine-2-carboxamides as inhibitors of collagen induced platelet activation and adhesion The present invention provides chiral (2S)-1-(4-methyl-phenylmethyl)-5-oxo-(3S)-{N-[(3-t butoxycarbonyl aminomethyl)]-piperidin-1-yl}-pyrrolidine-2-carboxamide, and (2S)-1-(4-methylphenylmethyl)-5-oxo-(3R)-{N-[(3-t-butoxycarbonyl amino methyl)]-piperidin-1-yl}-pyrrolidine-2-carboxamide of formula 6 and 7 respectively. The present invention also relates to use of these moieties as inhibitors of collagen induced platelet adhesion and aggregation mediated through collagen receptors. The present invention provides a process for preparation of chiral carboxamides of formula 6 and 7 using the process which has advantage to avoid any racemization at the a-carboxylic center, during N-alkylation. The reagent LiHMDS is used at low temperatures to furnish methyl N-(p methylphenylmethyl)lpyroglutamate in good chiral purity.
摘要:
The present disclosure provides for new photoalignment (co)polymer materials which demonstrate improved adhesion to a substrate. The (co)polymeric structure includes at least one photochemically active chromophore and at least one adhesion promoter group. Articles of manufacture, optical elements, ophthalmic elements and liquid crystal cells which include at least one photoalignment layer made from the photoalignment (co)polymer materials and methods for formation are also disclosed.
摘要:
Systems and methods to exchange data between a vehicle and a remote computer system, are disclosed. In one embodiment, a system to exchange data between a vehicle and a remote computer system comprises at least one power line adapted to couple to the vehicle, a local area network, a modem coupled to the local area network and the at least one power line, and a power line interference server comprising logic to allocate communication channels within a specified frequency range on the power line. Other embodiments may be described.
摘要:
In embodiments, apparatuses, methods and storage media are described that are associated with controlling production of images on a camera. In embodiments, a device with a camera, such as a content consumption device, may determine a current orientation of the camera and may adjust production of images from the camera to account for the orientation. The device may determine the orientation based on physical data, such as data from an accelerometer, compass, and/or gyroscope. the device may also determine the orientation from image data. The device may adjust production of images by either before capture, such as by physically adjusting the orientation of the camera, or after capture, such as by panning, tilting, and/or zooming captured images. Other embodiments may be described and claimed.
摘要:
Described herein are compounds generally comprising an indeno[2′,3′:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles.
摘要:
In embodiments, apparatuses, methods and storage media are described that are associated with remote control of media devices. In embodiments, a remote control and a content player may be configured to facilitate a secured pairing process. The remote control may be configured to send non-secured signals (such as through an IR transmitter) as well as send and receive secured signals (such as via Bluetooth™ using an RF transceiver). The remote control, in response to being turned on or asked to pair, may send a pairing request to the player that includes an identifier for the remote control and which identifies the remote control as an eligible pairing device without requiring separate entry of a security code by a user. The remote control and player may then perform a pairing process without requiring additional action on the part of a user. Other embodiments may be described and/or claimed.
摘要:
Provided are phase-separating polymer systems including a cured polymeric liquid crystal matrix phase and a guest phase including at least one photoactive material where the guest phase separates from the matrix phase during the curing process. Optical elements, including ophthalmic elements and other articles of manufacture including the phase-separating polymer systems are also disclosed. Methods of forming a liquid crystal phase-separating photoactive polymer system are also described.