摘要:
The present invention provides a preparation method of fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether by reacting CH2FX with 1,1,1,3,3,3-hexafluoroisopropanol in the presence of acid-binding agent. The reaction can be also preformed in the presence of solvent and/or phase-transfer catalyst. The present method has the advantages of simple reaction, manageable control condition, high material conversion and product yield, and the product can be easily separated. The obtained fluoromethyl 1,1,1,3,3,3-hexafluoroisoprophyl ether can be used as a safe inhalation anesthetics.
摘要:
A computerized method for detecting fraud includes obtaining frequency information on entities in transaction data for at least one individual account, converting frequency information to a frequency variable, and predicting whether an activity is fraudulent in response to the frequency variable. In some embodiments, the frequency variable is used with at least one other variable to predict fraudulent activity.
摘要:
A capacitance touch screen with mesh electrodes includes a first electrode group and a second electrode group made of transparent conductive material. Particularly, at least either the first electrode or the second electrode includes at least two sub-electrode plates, all the sub-electrode plates in the electrodes which are the same are arranged in accordance with a mesh structure. The capacitance distribution of the prior art is changed from concentrated capacitance to decentralized distributed capacitance through the mesh electrodes, to ensure the touch screen to have higher effective capacitivity even in suspended state, the waterproof performance of the touch screen is increased, and the properties including ESD resistance, aging resistance, etc. of the capacitance touch screen are enhanced.
摘要:
A card edge connector assembly is provided with a first connector, a second connector and a printed circuit board (PCB). The first/second connector respectively comprises a first/second insulative housing with a plurality of first/second terminals mounted therein. The first/second insulative housing has a first/second upper wall, a first/second lower wall and a first/second mating cavity defined therebetween for receiving the first/second memory module therein. The PCB defines a first and a second solder regions at a top face thereof, on which the first and second terminals are respectively soldered. The first and second memory modules are respectively inserted into the first and second mating cavities along different directions so as to avoid interference between the memory modules during the assembling process.
摘要:
An electrical connector (1) for receiving an electrical card assembly (3) which having at least one first cable connecting member (31), includes an insulative housing (10), a plurality of contacts (11) received in the housing and at least one extending portion (4). The insulative housing defines a longitudinal main body (100) with a slot (101) extending along a longitudinal direction. The at least one extending portion is disposed at one end of the main body. The at least one extending portion is used for receiving and retaining a second cable connecting member therein to connect with the first cable connecting member.
摘要:
An electrical connector assembly is provided for electrically connecting at least a pair of stacked memory cards to a printed circuit board. The assembly includes a first insulative housing and a lower insulative housing positioned below the first insulative housing. Each of the two insulative housings has an elongated slot. A metal peg interconnecting the two insulative housings with each other is provided to enhance the intensity of the electrical connector assembly and prevent it from being broken.
摘要:
An external cavity laser apparatus and method wherein wavelength or channel selection is carried independently from adjustment of external cavity optical path length. The apparatus comprises a wavelength or channel selector tuner and an external cavity tuner, wherein the wavelength tuner is uncoupled from the external cavity tuner. The tuning mechanisms for wavelength selection and cavity optical path length are configured to operate independently or orthogonally with respect to each other. The wavelength tuner may operate according to a first, channel selection signal, while the external cavity tuner operates according to a second, external cavity adjustment signal. The wavelength tuner and external cavity tuner may operate under the control of the same, or of separate controllers. The channel selection signal may be derived from a look-up table of adjustment parameter data accessed by a controller, and the external cavity adjustment signal may be derived from an error signal from a detector configured to measure external cavity loss.
摘要:
The present invention discloses a novel candle body composition for colored flame candles, which can be directly press-molded or provided in any containers in a form of bulk materials and combined with a candle combustion wick to form a colored flame candle. The candle body composition according to the present invention is also suitable for DIY articles. Compared with conventional solid colored flame candles, the colored flame candle according to the present invention can be manufactured in a simple manner, with the heat shaping step being dispensed with and the problem of environmental pollution being largely avoided. Furthermore, the colored flame candle according to the present invention has a good ignition property, a pure and sharp flame and a high retention of flame, and is an environmentally friendly product.
摘要:
The present invention relates to nucleic acids encoding peripheral-type benzodiazepine receptor (PBR)-associated proteins (PAPs), and nucleic acids that hybridize or are variant of nucleic acids encoding the peripheral-type benzodiazepine receptor (PBR)-associated proteins (PAPs), which are capable of encoding proteins that regulate the function of PBRs affecting both steroid biosynthesis and mediating cholesterol delivery as well as other PBR-mediated functions.
摘要:
The present invention is directed to methods for identification of compounds that affect wakefulness, attention deficit hyperactivity disorder, chronic fatigue syndrome and mood disorders (e.g., depression) through interaction with the hypocretin receptor system. The present invention is also directed to detection of abnormal levels of hypocretin in a subject, as well as detection of an abnormal immune response against hypocretin (orexins) and/or their receptors, where detection of abnormal hypocretin levels or detection of an abnormal immune response is indicative of a sleep disorder, particularly of narcolepsy. The present invention is also directed to a methods relating to the detection of a mutation or polymorphism in the gene encoding the hypocretin receptors, the detection of antibodies disrupting the function of gene encoding hypocretin receptors and hypocretin polypeptides, and the use of hypocretin biological markers in predicting treatment response using compounds interacting with the hypocretin receptor system.