摘要:
A self-energizing and de-energizing adjustable gripping tool for engaging a work piece to impart work thereto includes a first element and second element connected for relative movement. The second element includes an actuation portion having a plurality of slots. The first element includes gripping elements which are each associated with a force transfer element which engages one of the slots such that movement of the second element relative to the first element actuates the gripping elements to engage the work piece.
摘要:
The invention provides a method of verifiable generation of public keys. According to the method, a self-signed signature is first generated and then used as input to the generation of a pair of private and public keys. Verification of the signature proves that the keys are generated from a key generation process utilizing the signature. A certification authority can validate and verify a public key generated from a verifiable key generation process.
摘要:
An apparatus and method are disclosed for operating a narrow band short pulse duration gas discharge laser output light pulse beam producing system, producing a beam comprising laser output light pulses at a selected pulse repetition rate, which may comprise: a dispersive center wavelength selection optic selecting at least one center wavelength for each pulse determined at least in part by the angle of incidence of the laser light pulse beam containing the respective pulse on the dispersive wavelength selection optic; a tuning mechanism operative to select at least one angle of incidence of a first spatially defined portion of the laser light pulse beam containing the respective pulse upon the dispersive center wavelength selection optic; and, the tuning mechanism comprising a variably refractive optical element defining a plurality of refractive angular displacements of the first spatially defined portion of the laser light pulse beam passing through the variably refractive optical element at one of a plurality of positions of incidence of the laser light pulse beam on the variably refractive optical element. The variably refractive optical element may comprise: a first generally flat face defining a surface of incidence for the laser light pulse beam; and, a second multifaceted or curved face defining a plurality of generally flat surfaces of exit or a continuously varying surface of exit for the laser light beam. Other aspects of pulse parameter metrology and pulse modulation control, including in response to signals from the utilization tool are disclosed, e.g., relating to proper dose control with differing center wavelength spectra.
摘要:
A nozzle assembly having a mixing nozzle that dispenses foam in a particular pattern. A spray tip detachably fixable to the mixing nozzle that produces a foam spray pattern that is different from the spray pattern produced by the mixing nozzle alone
摘要:
A computer system is provided that includes a database storing user histories of selected products, and a database associating products with assessments of their content in a number of different categories. The computer system generates user profile data reflecting the underlying characteristics of user preferences by identifying categories and groups of categories corresponding to products in the user histories whose content assessments are one of an extremely high and low evaluation. In the user profile data, larger groups of categories having extremely high or low content evaluations are weighted more heavily than smaller groups of categories and singly identified categories having extremely high or low content evaluations. The generated user profile data can be utilized to provide targeted advertising and/or to automatically select products are identified with similar underlying characteristics of the user. preferences. In one example, a television recording apparatus is provided that automatically records television programs based on a correspondence between program profile data associated with the television programs and user profile data that has been generated based on a past history of the user's viewing habits.
摘要:
The invention pertains to a novel ionophore having the general structure: wherein R1, R2, R3 and R4 are independently straight or branched chain alkyl having 4 to 12 carbon atoms or the alkyl groups may optionally contain a cycloalkyl group having 3 to 8 carbon atoms or R1 and R2 or R3 and R4 together with N to which they are attached, can form a ring having 5 to 8 carbon atoms. This ionophore has increased selectivity for carbonate ions over other ions, especially salicylate. The invention includes membranes containing effective amounts of the novel ionophores and -sensors containing these membranes.
摘要:
An x86 based computer system that implements an advanced firmware based boot process without a conventional x86 BIOS. The computer system includes an x86 processor coupled to a volatile memory and a non-volatile memory via a bus, wherein the non-volatile memory includes an advanced firmware. The advanced firmware is executed by the processor to implement a boot sequence. During the boot sequence, the computer system initializes device drivers using the advanced firmware and interfaces with advanced firmware compliant program with the device drivers of the computer system. The computer system also initializes a virtual compatibility machine for supporting legacy software programs. The virtual compatibility machine includes a plurality of compatibility models. The compatibility models function by interfacing with legacy software programs and by translating functions received from the legacy software programs via the compatibility models into corresponding functions performed by the device drivers of the computer system, thus allowing the computer system to run both legacy software programs and advanced firmware compliant software programs natively.
摘要:
Nucleoside analogues in which a group M replaces the natural base where M is (1) or (2) or (3), where each of X1, X2 and X3 are C or N, each of R6 and R7 is the same or different and each is H, NO2, CO, COR8, OR8, CN, O, CON(R8)2, COOR8, SO2R8, SO3R8, SR8, NHCHO, (CH2)n(R8)2, halogen, or a reporter moiety, each of R8 and R9 is H or hydrocarbyl or a reporter moiety, and n is 0-4. The analogues are substrates for polymerase and terminal transferase enzymes.
摘要翻译:其中M代替M为(1)或(2)或(3)的天然碱的核苷类似物,其中X1,X2和X3各自为C或N,R6和R7各自相同或不同, 各自为H,NO 2,CO,COR 8,OR 8,CN,O,CON(R 8)2,COOR 8,SO 2 R 8,SO 3 R 8,SR 8,NHCHO,(CH 2)n(R 8)2,卤素或报道分子 R8和R9是H或烃基或报道部分,n是0-4。 类似物是聚合酶和末端转移酶的底物。
摘要:
During generation of a signature on a message to create a signed message, a signer determines one of the signature components such that particular information can be extracted from the signature component. The particular information may be related to one or more of the signer and the message to be signed. After receiving a signed message purported to be signed by the signer, a verifier can extract the particular information from the signature component.