摘要:
A method is provided of calibrating a system that detects presence of a pollution component within exhaust gases proceeding along an exhaust passageway. A measurement cell of a probe is isolated by movement of either the entire probe or a shield within the probe from the exhaust gas to allow reference gas to be detected by a laser beam in the mid-infrared range in the measurement cell to calibrate the system. In another example, a laser source is placed on one side of an exhaust passageway and a detector is placed on the other side. A reference cell is provided that is used to receive reference gas and calibrate the system. In yet another example, the exhaust gas is extracted from the passageway and is measured in a reference cell. The reference cell is also filled with reference gas when it is desired to calibrate the system.
摘要:
The present invention relates to the technical field of ships, and particularly relates to an underwater floating body and an installation method thereof. The floating body includes sub-cabins and pressure resistant cabins, symmetrically arranged sub-cabins are arranged at the left and right sides of the floating body, the sub-cabins are arranged at the front and back sides of the floating body, the buoyant force provided by the sub-cabins at the front side of the floating body is larger than the buoyant force provided by the sub-cabins at the back side of the floating body. According to the underwater floating body and the installation method thereof provided by the present invention, the underwater floating body can arrive at the working water area at one step, thereby saving a large amount of manpower and material resources.
摘要:
This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x(M1/nXO2):yYO2:gGeO2:(1−g)SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.
摘要:
This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x(M1/nXO2):yYO2:gGeO2:(1−g)SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.
摘要:
Processes are described for the preparation of tubulysins. The processes are useful for preparing predetermined mixtures of tubulysins, preparing single tubulysins from mixtures of tubulysins, and for converting one tubulysin into a different tubulysin. The tubulysins described herein are useful in treating diseases and disease states that include pathogenic cell populations.
摘要:
A system, method and computer-readable mediums for replicating data, are provided. A replication logic description describing how data is replicated in a replication path and a resource description describing a replication environment are specified. The replication logic description is bound to at least one resource in the resource description. Once bound, an object representing a bound replication logic description and the resource description is generated and deployed in the replication environment. Once deployed the object replicates data in the replication path while ensuring transaction consistency and delivery during replication of the data.
摘要:
A method of making a doped titanium oxide coating in a float glass manufacturing process and the coated glass article made thereby wherein the dopant is a niobium or tantalum compound. The doped titanium oxide coating preferably exhibits an electrical conductivity >1×10−3 S/cm.
摘要翻译:在浮法玻璃制造工艺中制造掺杂的氧化钛涂层的方法和由此制成的涂覆的玻璃制品,其中掺杂剂是铌或钽化合物。 掺杂的氧化钛涂层的电导率优选> 1×10 -3 S / cm。
摘要:
A semiconductor device wafer includes a test structure. The test structure includes a layer of material having an angle-shaped test portion disposed on at least a portion of a surface of the semiconductor wafer. A ruler marking on the surface of the semiconductor wafer proximate the test portion is adapted to facilitate measurement of a change in length of the test portion.
摘要:
A system and method for allocating transmitter power to subcarriers of a multicarrier signal is provided. First, the subcarriers are transmitted with an initial set of power levels and an initial set of constellation assignments. Next, quantized SNR metric values are measured at the receiver for each subcarrier. The measured subcarrier quantized SNR metric is compared with the respective allocated constellation quantized SNR metric, for determining the excess SNR per subcarrier. The transmitter power of the subcarriers whose excess SNR is above a predetermined threshold is adjusted, while keeping the total transmitter power constant. The transmitter power may be adjusted for increasing throughput or robustness of the system. For increased accuracy, several training frames may be used. Advantageously, only constellations equally spaced, such as square or cross constellations, are used. According to a preferred embodiment, OFDM/DMT multicarrier system use IFFT prescalers in the transmitter power adjustment.
摘要:
The present invention relates to a preparation method of a high-stable non-ionic N-vinyl butyrolactam iodine, wherein non-ionic N-vinyl butyrolactam, iodine and at least one grinding aid are stirred at 150-800 r/min at a temperature of 50° C.-90° C. for 1 to 12 hours to prepare the high-stable non-ionic N-vinyl butyrolactam iodine, wherein the K value of the non-ionic N-vinyl butyrolactam is 32±1, the PD value of the main peak of the non-ionic N-vinyl butyrolactam is ≦1.6, the moisture content of the non-ionic N-vinyl butyrolactam is ≦2.5%, preferably, the grinding aid is selected one or several from sodium chloride, sodium citrate, sodium carbonate and sodium phosphate, the amount of the grinding aid added is 0.02 to 2% of the total amount of the non-ionic N-vinyl butyrolactam and the iodine, the non-ionic N-vinyl butyrolactam is PVP-K32, the high-stable non-ionic N-vinyl butyrolactam iodine prepared by the above mentioned method is also provided, the stability of the high-stable non-ionic N-vinyl butyrolactam iodine of the present invention is high, thereby facilitating long-term storage and use, thus the high-stable non-ionic N-vinyl butyrolactam iodine is suitable for large-scale popularization.