Abstract: A field of asymmetric catalytic synthesis, and in particular a preparation method for a high optical indoxacarb intermediate includes reacting 5-chloro-2-methoxycarbonyl-1-indanone ester (or indanone ester for short) with an oxidizing agent in the presence of a chiral Zr-salen polymer to obtain an indoxacarb intermediate (2S)-5-chloro-2,3-dihydro-2-hydroxy-1-oxo-1H-indole-2-carboxylic acid methyl ester. The yield is stabilized between 86% and 90%, and the S-enantiomer content is up to 99%. Such catalyst can replace catalysts such as cinchonine, and greatly increase the content of the effective S-enantiomer of the indoxacarb, so that the content of the hydroxyl intermediate S-enantiomer of the indoxacarb is raised from 75% to 99% or more. In addition, the chiral Zr-salen polymer catalyst is recycled without retreatment, and can be recycled at least 5 times or more, greatly reducing the production cost and laying a foundation for the industrial production of high quality indoxacarb.

Abstract: Adhesion-promoting compositions and the use of the adhesion-promoting compositions to provide adhesion-promoting interlayers to enhance adhesion between adjoining layers of sulfur-containing sealants are disclosed. In repair applications, the adhesion-promoting compositions can enhance the adhesion of an overlying radiation-curable sulfur-containing sealant to a damaged or aged sulfur-containing sealant.

Abstract: The present invention relates to a lining material of a nonmetal flexible composite pipe and a preparation method. The lining material consists of the following components in the following proportions: 89.5-99.4 wt % of a polymer matrix, 0.5-10 wt % of inorganic particles and 0.1-0.5 wt % of an antioxidant. The preparation method comprises the following steps: (1) preparation of raw materials: raw materials are weighed in a mass ratio for later use; (2) compounding and plasticizing: inorganic particles, a polymer matrix and an antioxidant are added into a twin-screw extruder or a mixer at an extruding or mixing temperature of 190-360° C., and extruded and cooled for later use; and (3) pelleting: the materials after the compounding and plasticizing obtained in the step (2) are pelleted in a pelletizer to obtain the lining material of a nonmetal flexible composite pipe.

Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.

Abstract: Adhesion-promoting compositions and the use of the adhesion-promoting compositions to provide adhesion-promoting interlayers to enhance adhesion between adjoining layers of sulfur-containing sealants are disclosed. In repair applications, the adhesion-promoting compositions can enhance the adhesion of an overlying radiation-curable sulfur-containing sealant to a damaged or aged sulfur-containing sealant.

Abstract: Adhesion-promoting compositions containing organic titanates and/or organic zirconates and the use of the adhesion-promoting compositions to provide adhesion-promoting layers to enhance adhesion between metal substrates and an overlying free radical-polymerized sealant are disclosed.

Abstract: A catalyst and a method for preparing S-indoxacarb using the catalyst. The catalyst is prepared using 3-tert-butyl-5-(chloromethyl)salicylaldehyde and cyclohexanediamine as raw materials, where an original quinine catalyst such as cinchonine is replaced with the catalyst for application in the asymmetric synthesis of tert-butyl hydroperoxide and 5-chloro-2-methoxycarbonyl-1-indanone ester, greatly improving selection in the asymmetric synthesis process, with the S-enantiomer content increasing from 75% to over 98%, achieving the recycling of a high-efficiency chiral catalyst, and greatly reducing production costs. The synthesis process of the catalyst is simple and is favorable for industrialization, and lays good foundations for the production of high-quality indoxacarb.

Abstract: To enable fast startup of an audio/video receiver device and quick receipt of a first audio/video stream, is provided a method in an intermediate device in between a router device and the receiver device. The intermediate device snoops the communication between the audio/video receiver device and the router device to determine the protocol version of the router device to subscribe to a transmission of an audio/video stream and to determine that the receiver device is starting up. If the protocol version is a version not supporting Source Specific Multicast and the receiver device is booting, a message indicating the protocol version is transmitted to the receiver device during starting up of the receiver device so that the latter can switch to a protocol version supported by the IP multicast router device without further delay.

Abstract: Compositions that are curable by free radical redox reactions are disclosed. Free radical curing reactions between polythiols and polyalkyenyls are initiated by the reaction of metal complexes and organic peroxides. The compositions are useful as sealants.

Abstract: A floating drilling platform for offshore oil/gas drilling and exploration in ice-infested polar areas comprises a deck module, a hard compartment, and a soft compartment sequentially connected from top to bottom. The bottom of the deck module is connected to the top of the hard compartment by evenly distributed column. Both the hard and the soft compartments are cylinders centrally arranged with center wells. The deck module is also centrally arranged with a center well. The hard compartment, the soft compartment and the deck module are coincident with a centerline. The outer diameter of the soft compartment, as well as that of the deck module, is larger than that of the hard compartment. The top of the hard compartment is designed with a circular inclined plane upwardly and outwardly arranged at the outer edge. The top of the circular inclined plane is connected to the bottom of the deck module.

Abstract: A floating drilling platform for offshore oil/gas drilling and exploration in ice-infested polar areas comprises a deck module, a hard compartment, and a soft compartment sequentially connected from top to bottom. The bottom of the deck module is connected to the top of the hard compartment by evenly distributed column. Both the hard and the soft compartments are cylinders centrally arranged with center wells. The deck module is also centrally arranged with a center well. The hard compartment, the soft compartment and the deck module are coincident with a centerline. The outer diameter of the soft compartment, as well as that of the deck module, is larger than that of the hard compartment. The top of the hard compartment is designed with a circular inclined plane upwardly and outwardly arranged at the outer edge. The top of the circular inclined plane is connected to the bottom of the deck module.

Abstract: An offshore floating platform for operating in ice-infested waters and harsh environment for oil/gas drilling and exploration in Arctic area comprises four (4) sections, i.e., an upper cone, a transition section, a lower cone and a bottom frame. The upper cone, the transition section, the lower cone and the bottom frame are coincident with a centerline, and a through center well is designed around the centerline from top to bottom. The diameter at the bottom frame is smaller than that of the main body of the center well. The upper cone, the transition section and the lower cone are internally connected and divided into plural compartments. Through ballast compartments are designed outside the sidewall of the upper cone, the transition section and the lower cone vertically connected with a consistent cross-sectional area from top to bottom. Plural ballast compartments and void compartments are arranged within the bottom frame.

Abstract: The present invention is directed to rigid or semi-rigid trays having a bulk layer comprising a crystalline aromatic polyester and a capping layer which is in direct contact with the bulk layer. The capping layer comprises a polyethylene-based polymer and is surface-treated to increase its surface tension. It has been discovered that the bulk layer and the capping layer of the present invention can be readily laminated together and have sufficient bond strength to each other despite their chemical dissimilarity. In some preferred embodiments, the capping layer acts as a heat seal layer and is formulated to heat seal to conventional polyolefin-based lidstock.

Abstract: There is provided a method for generating alarm interruption and alarm clearing interruption for a monitored parameter, the method comprising: generating a first interruption as an alarm interruption for the monitored parameter if the monitored parameter increases to exceed a high threshold or decreases to be lower than a low threshold, the low threshold being stored in a first specified memory address and having a first low alarm value and the high threshold being stored in a second specified memory address and having a first high alarm value; wherein the method further comprising: in response to the first interruption, writing a second low alarm value being same as the first high alarm value into the first specified memory address as a modified low threshold if the alarm interruption is a high alarm interruption, and writing a second high alarm value being same as the first low alarm value into the second specified memory address as a modified high threshold if the alarm interruption is a low alarm interrup

Abstract: The present invention is directed to rigid or semi-rigid trays having a bulk layer comprising a crystalline aromatic polyester and a capping layer which is in direct contact with the bulk layer. The capping layer comprises a copolymer having a first structural repeating unit of ethylene and a second structural repeating unit selected from the following: (i) an acrylate-based moiety: fit) at least 12% by weight relative to the total weight of the copolymer of vinyl acetate; and (iii) an anhydride or carboxylic acid. It has been discovered that the bulk layer and the capping layer of the present invention can be readily co-extruded together and have sufficient bond strength to each other despite their chemical dissimilarity. In some preferred embodiments, the capping layer acts as a heat seal layer and is formulated to heat seal to conventional polyolefin-based lidstock.

Abstract: Provided are a message interaction processing method and device. The method includes: a first buffer with a preset size is applied for to a Central Processing Unit (CPU) and/or a chip; and message interaction is performed between the CPU and the chip through the first buffer, wherein the first buffer is used for storing at least two messages. By the disclosure, the problem that frequent switching between states may cause high resource overhead and low message transmission efficiency under the condition of large message interaction between the CPU and the chip is solved, and the effect of remarkably improving message sending and receiving efficiency and performance of network equipment is further achieved.

Abstract: Provided are a method for implementing counting control of a counter in a network chip, and a network chip. The method includes: periodically generating a counting value scanning message; reading a counting value of a corresponding counter item according to the generated counting value scanning message; analyzing and judging whether the read counting value is less than a preset overflow threshold; and informing the processor to handle counting abnormality of the counter when the read counting value is not less than the preset overflow threshold. The system can realize the periodic diagnosis on the counting state of the counter in the network chip by using a packet generator and a message processing engine, so as to prevent the processor from constantly sampling the counter to check the state of the counter, and ensure the calculation performance of the processor.

Abstract: In the environment where a network attached unit can be controlled by 2 different 1st and 2nd protocols, a method for notifying another protocol of the configuration change of the unit by one protocol. For example, the 1st protocol is OMCI and the 2nd protocol is TR069. The method may comprise the steps of; a) checking whether a 1st message is to change the configuration of the unit or not, if the 1st message is issued by the 1st protocol; b) checking whether the 1st message is common for both 1st and 2nd protocols, if the result of the step a) is yes; c) configuring the unit itself according to the 1st message, if the 1st message is common; d) checking whether the step c) was successful or not; and e) issuing a notifying message by the 2nd protocol, if the step d) was successful.

Abstract: Provided are a message interaction processing method and device. The method includes: a first buffer with a preset size is applied for to a Central Processing Unit (CPU) and/or a chip; and message interaction is performed between the CPU and the chip through the first buffer, wherein the first buffer is used for storing at least two messages. By the disclosure, the problem that frequent switching between states may cause high resource overhead and low message transmission efficiency under the condition of large message interaction between the CPU and the chip is solved, and the effect of remarkably improving message sending and receiving efficiency and performance of network equipment is further achieved.

Abstract: Provided are a method for implementing counting control of a counter in a network chip, and a network chip. The method includes: periodically generating a counting value scanning message; reading a counting value of a corresponding counter item according to the generated counting value scanning message; analyzing and judging whether the read counting value is less than a preset overflow threshold; and informing the processor to handle counting abnormality of the counter when the read counting value is not less than the preset overflow threshold. The system can realize the periodic diagnosis on the counting state of the counter in the network chip by using a packet generator and a message processing engine, so as to prevent the processor from constantly sampling the counter to check the state of the counter, and ensure the calculation performance of the processor.