摘要:
A method of recovering ethylene sulfide from a hydrous stock solution (solution) containing ethylene sulfide, toluene (hydrophobic organic compound) having a higher boiling point than ethylene sulfide, and a compound having a higher boiling point than toluene, by distilling the stock solution continuously using a continuous fractionating tower 2, a fractionating tower 4, and a rectifying tower 5. Ethylene sulfide is distilled out with toluene and water from the continuous fractionating tower 2, and the distillate is allowed to separate into an oil layer and a water layer in a separating tank 3. The oil layer is distilled continuously by the fractionating tower 4 without being subjected to a reflux operation to distill out water with a part of ethylene sulfide. The bottom product from the fractionating tower 4 is rectified by the rectifying tower 5 to recover ethylene sulfide. Consequently, the polymerization reaction of ethylene sulfide can be suppressed and ethylene sulfide can be separated and recovered continuously in an efficient and stable manner. Also, the clogging of fractionating towers and pipes can be prevented.
摘要:
Each of electric cells constituting a battery assembly is provided with external terminals. The upper end of the electric cell is covered with an upper cap surrounding the external terminals whereas the lower end of the electric cell is covered with a lower cap. The electric cell is held between an upper holder and a lower holder via the upper cap and the lower cap. The upper cap includes a protector including ribs projecting along both sides of an inspecting terminal projecting through a terminal opening. The upper ends of the ribs are located above the inspecting terminal. Consequently, a metallic tool or the like cannot be brought into contact with the inspecting terminal, thereby preventing short-circuiting. Thus, it is possible to secure an excellent assembling performance while enhancing the safety of assembling work.
摘要:
The operation rate of a circuit pattern inspecting apparatus is prevented from deteriorating by measuring image noise of the circuit pattern inspecting apparatus and detecting the sign that the apparatus is to be in an abnormal state. Provided is the circuit pattern inspecting apparatus wherein circuit pattern abnormalities are detected by irradiating a substrate having a circuit pattern formed thereon with an electron beam and detecting generated secondary electrons or reflected electrons. The circuit pattern inspecting apparatus is provided with: an image processing section wherein an image is generated based on the signal intensities of the detected secondary electrons or those of the reflected electrons and the image is displayed for a display apparatus of the interface; and a control section which analyzes the frequency of noise included in the image.
摘要:
A circuit pattern inspection apparatus and inspection method facilitate the creation of a recipe and the confirmation of a defect. The apparatus and method employ a dialogue-based operation for the creation of a recipe and the confirmation of a defect. Input items (such as contrast, calibration, etc.) for the recipe creation and their purposes are clarified. Input items (such as clustering, filtering, etc.) for the defect confirmation and their purposes are also clarified. The results obtained on the basis of these inputs are registered in the recipe.
摘要:
In a capacitive physical quantity sensor, a C-V converter converts a variation in a capacitance between a movable electrode and a fixed electrode into a voltage to output the converted voltage in a first operating mode. The C-V converter also outputs a constant voltage in a second operating mode. An amplifier amplifies the converted voltage to output a first voltage, and amplifies the constant voltage to output a second voltage. A first sample and hold circuit operates in the first operating mode to sample and hold the first voltage. A second sample and hold circuit operates in the second operating mode to sample and hold the second voltage. A first differential amplifier obtains a difference voltage between the first voltage held by the first sample and hold circuit and the second voltage held by the second sample and hold circuit.
摘要:
A transaction management system for configurating an on-line shopping system. The on-line shopping system including the transaction management system also includes an IPS-RADIUS server, an account management system operated by a carrier, and an article supplier server. The transaction management system has contract DB storing plural sets of contract information each having a user ID, a customer code, an ISP code, an accounted party code specifying carrier (or account management system), and so on. When a customer buys an article by accessing to an article supplier server, the server transmits an accounting process request containing a customer code to the transaction management system. The transaction management system, when receiving the accounting process request, attempts to authenticate the identity of the customer. If the customer is authenticated, the transaction management system functions so that the carrier collects a fee of the bought article together with a fee charged for the service provided by the carrier.
摘要:
A polyester resin for a full color toner which comprises a) from 0.5 to 5% by mole, based on all the acid components, of a tribasic or higher carboxylic acid component and/or a trihydric or higher alcohol component, b) at least 95% by mole, based on all the acid components, of a dibasic carboxylic acid component, c) from 10 to 80% by mole, based on all the acid components, of an aromatic diol component consisting of or containing a bisphenol A derivative having ethylene oxide added thereto, and d) from 20 to 110% by mole, based on all the acid components, of an aliphatic diol component; and has a softening temperature of 95 to 115.degree. C., a glass transition temperature of 50 to 70.degree. C., an acid value of 6 to 20 mgKOH/g, a melt viscosity at 118.degree. C. of 1000 to 52,000 poises, a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) of 1.5 to 5 in the molecular weight distribution determined by gel permeation chromatography, a peak TOP molecular weight of 20,000 or less and a gel fraction of 0.5% by weight or less.
摘要:
Toner resin consisting of a polymer which comprises (a) an aromatic vinyl unit, (b) an acrylic or methacrylic compound unit and (c) a polyfunctional compound unit, and which has a tetrahydrofuran insoluble content of 5-60%, a maximum peak molecular weight of no more than 20,000 in the molecular weight distribution of the tetrahydrofuran soluble portion as measured by gel permeation chromatography, and a weight average polymerization degree of no more than 180, as well as a process for its production. The resulting toner resin has an excellent fixing property, non-offsetting property, blocking resistance and image stability.
摘要:
An optical pickup includes a movable unit supported in such a manner that the movable unit can move in tracking directions as well as in focusing directions. The movable unit has a laser unit including an objective lens, a reflecting mechanism, a light source, and a light detecting mechanism all constructed in an integral fashion. An axis of rotation of the movable unit intersects an optical axis of a light beam emitted by the laser unit. Also provided are two rotating mechanisms (for example, pivot pins or hinges) separately disposed in a direction along the axis of rotation, both rotating mechanisms having a common axis of rotation. Such an arrangement makes it possible to realize a small-sized, optical pickup having a driving mechanism suitable for high speed seeking. Such an optical pickup makes it possible to realize an optical recording/reproducing apparatus that can transfer data at a high rate of speed over a short access time.
摘要:
The present invention is directed to a process for purifying alpha-1-PI. The process comprises providing an impure protein fraction which comprises alpha-1-PI. The impure protein fraction is suspended in an aqueous solution at pH 6. Insoluble proteins are recovered and resuspended in aqueous solution at pH 8.5. PEG is added to precipitate .alpha.-2 proteins. To the PEG supernatant precipitation, which comprises alpha-1-PI, is added ZnCl.sub.2 to precipitate crude alpha-1-PI. The crude alpha-1-PI is resolubilized and applied to an anion-exchange medium. A fraction comprising alpha-1-PI is recovered from the anion-exchange medium. Alpha-1-PI purified by the process has a specific activity about 1.0 units/OD.sub.280.