摘要:
A process for crosslinking a polycarbonate resin involves heating the polycarbonate resin in the presence of an organic copper compound at a temperature higher than the glass transition point of the polycarbonate resin.
摘要:
The invention is related to a container for holding liquids such as a 200 liter removable head steel drum. The drum is provided with an inner bag which lines the inside periphery of the drum and thereby prevents the sealing or coating liquid contained or being dumped into the drum from contacting the inside periphery of the drum. The inner bag is disposable. Thus the drum can be recycled or regenerated for reuse at a reasonable cost. Further, the inner bag prevents the liquid from being contaminated by the foreign matter located on the drum inner surface. The inner bag is removably fitted to the inside of the drum by a fixing means. The fixing means is removably fitted to at least one annular recess normally present on the inside periphery of the drum with or without the presence of the inner bag disposed between the recess and the fixing means. The fixing means fixes the inner bag and prevents it from slipping out while the liquid filled drum is being shipped or carried about or while the liquid inside the drum is being stirred or dumped from the drum. For the regeneration of the drum, the used inner bag is simply removed and replaced with a new one.
摘要:
Proposed in this application is a device for attenuating vibrations in a drive shaft of a motor vehicle of a type, in which driving force of an engine is transmitted to both left and right drive shafts through a clutch, a transmission mechanism, and differential gears. This vibration attenuating device is constructed with a vibration absorbing device having a resilient member and a weight combined together as an integral whole, and both members are provided at one of the drive shafts having a length longer than the other to the end part thereof where wheel is to be fitted.
摘要:
This invention provides a novel process for producing cyclodextrin by reacting cyclodextrin glycosyl transferase having an optimum pH on the alkaline side with gelatinized starch. According to this invention, cyclodextrin can be obtained in the form of a pure crystal in a high yield by reacting a glucomylase with the reaction mixture liquid formed by the above enzymatic reaction to decompose unreacted starch, concentrating the liquid, adding a small amount of cyclodextrin as a seed crystal and recovering the precipitated cyclodextrin.
摘要:
A semiconductor device includes an isolation portion penetrating a semiconductor substrate from a first surface to a second surface positioned opposite the first surface. The isolation portion includes a first insulating film and a second insulating film. The first insulating film has a slit portion at a side of the first surface and the slit portion is buried with the second insulating film. The semiconductor device further includes an electrode penetrating the semiconductor substrate that is surrounded by the isolation portion.
摘要:
A semiconductor device comprises an active region formed in a semiconductor substrate and a gate electrode formed on the active region via a gate insulating film formed on a surface of the active region. A peripheral portion of the gate electrode and a peripheral portion of the active region overlap each other at a position where the active region is not divided by the gate electrode when viewed in plan view, thus forming an overlap region.
摘要:
A server in a network system generates packets including payload data and at least one capability field, and sends the packets on a traffic path in a communication network. The capability field may indicate the capability of the server to provide the payload data, as determined by the server itself, or the capability of the traffic path to transfer the packets. In the latter case, network devices that transfer the packets update the capability field, or add a new capability field reporting their individual packet transfer capability. A client device receiving the packets can use the information in the capability field(s) to isolate quality problems to the server or the communication network, or to specific network devices in the communication network, and take appropriate action such as canceling a service request or reducing the requested level of service.
摘要:
The present invention provides an ultra soft high carbon hot-rolled steel sheet. The ultra soft high carbon hot-rolled steel sheet contains 0.2% to 0.7% of C, 0.01% to 1.0% of Si, 0.1% to 1.0% of Mn, 0.03% or less of P, 0.035% or less of S, 0.08% or less of Al, 0.01% or less of N, and the balance being Fe and incidental impurities and further contains 0.0010% to 0.0050% of B and 0.05% to 0.30% of Cr in some cases. In the texture of the steel sheet, an average ferrite grain diameter is 20 μm or more, a volume ratio of ferrite grains having a grain diameter of 10 μm or more is 80% or more, and an average carbide grain diameter is in the range of 0.10 to less than 2.0 μm. In addition, the steel sheet is manufactured by the steps, after rough rolling, performing finish rolling at a reduction ratio of 10% or more and at a finish temperature of (Ar3−20° C.) or more in a final pass, then performing first cooling within 2 seconds after the finish rolling to a cooling stop temperature of 600° C. or less at a cooling rate of more than 120° C./sec, then performing second cooling so that the steel thus processed is held at 600° C. or less, then performing coiling at 580° C. or less, followed by pickling, and then performing spheroidizing annealing at a temperature in the range of 680° C. to the Ac1 transformation point.
摘要:
In a method for classifying the types of applications on an IP network, packets are received, and statistical information on at least TCP flags and TCP packet sizes of the received packets are gathered to store. On the basis of the statistical information on the stored TCP flags, the applications are classified into two types, while, on the basis of the statistical information on the stored TCP packet sizes, the applications are classified into two other types. Further on the basis of results of the classification; the applications are classified into four types.
摘要:
A method for preparing a protein or peptide encoded by a foreign gene by expressing a foreign gene, which comprises the steps of: preparing a recombinant vector comprising in an expressible state a gene encoding an aminoacyl-tRNA synthetase, in which a desired foreign gene has been inserted in an expressible state; preparing a mutant host cell or the like in which a chromosomal gene encoding an aminoacyl-tRNA synthetase has been knocked out; transforming the mutant host cell with the recombinant vector to obtain a transformant; and culturing the transformant to prepare the protein or peptide encoded by the foreign gene. It becomes possible to provide a novel means for permitting the retention of a recombinant DNA cloning vector without employing an antibiotic and without limiting the composition of the medium; and a method for preparing a protein or peptide encoded by a foreign gene by using the means.