摘要:
The present invention provides norbornene-based copolymers for which one monomer is at least selected from a group consisting of norbornene and dicyclopentadiene, and the other from norbornene-based comonomers of Formula 1 shown below: In Formula 1, R1, R2 and a are defined in this specification. The present invention provides insulating elements for multi-chip packages and antireflection films for the exposure process of semiconductor fabrication using said norbornene-based copolymers. Norbornene-based copolymers according to the present invention have low dielectric constant as well as high thermal stability and excellent solubility to various organic solvents.
摘要:
Provided are a nanoporous membrane and a method of fabricating the same. The nanoporous membrane includes a support, and a separation layer including a plurality of nano-sized pores at a density of 1010/cm2 or greater and a matrix. The nanoporous membrane has a high flux and a high selectivity.
摘要:
A washer and a method of controlling operation of the washer is provided. The washer includes a main body; a washing chamber which is disposed in the main body and accommodates a stuff to be washed, including a water outlet formed on the bottom surface thereof and a water feed inlet on one end of which a shower nozzle is formed; an ultrasonic oscillator generating vibration in the washing chamber; and a control unit which can control a washing process, wherein the washing chamber includes an overflow hole through which washing water can overflow from the washing chamber. The washer performs an initial washing operation and a main washing operation in combination. In the initial washing operation, stuffs to be washed such as fruits and vegetables are contained in the washing chamber and then water is supplied on the stuffs to be washed through the shower nozzle in a showering manner to then be discharged so that foreign matter stick to the stuffs can be primarily removed. In the main washing operation, water is re-supplied into the washing chamber to fill the washing chamber up, to then perform the main washing operation called an ultrasonic washing operation through the ultrasonic oscillator. During performing the main washing operation, water is additionally fed in every period of time in a manner that a certain amount of floating matter can be flown out through the overflow hole. As a result, light foreign matter floating in the water among the foreign matter detached from the stuffs to be washed is flown out together with the water, to thereby prevent floating foreign matter from sticking again to the stuffs during washing and improve a washing effect. The washer can automatically and cleanly wash stuffs such as fruits and vegetables to be washed which requires a long washing time, to thereby provide an effect of shortening the whole washing time.
摘要:
A volatile copper aminoalkoxide complex of formula (I) can form a copper thin film having an improved quality by metal organic chemical vapor deposition (MOCVD): wherein, R1, R2, R3 and R4 are each independently C1-4 alkyl optionally carrying one or more fluorine substituents; and m is an integer in the range of 1 to 3.
摘要:
A method of manufacturing new UO2-based fuel pellets by recycling irradiated UO2-based fuel pellets. Irradiated UO2-based fuel pellets are oxidized so as to make U3O8-based powder, and then the U3O8 -based powder is mixed with an additive which contains at least one oxide of an element selected from the group consisting of niobium, titanium, vanadium, aluminum, magnesium, chromium, silicon and lithium. Green pellets are formed from the mixed powder, and then sintered, preferably at 1500° C. or higher, in a reducing gas atmosphere to produce UO2-based fuel pellets with high densities.
摘要:
The present invention is directed to a pharmaceutical compositions improving percutaneous absorbability by absorption assistants, which remarkably increase permeation and dissolution of piroxicam, and penetration enhancers. A further surprising feature of the present invention resides in the fact that absorption assistant which assists penetration enhancer is able to include the active substance excessively in adhesive matrix as solvent of the active substance.
摘要:
Techniques involving selective modification of keyboard presentation and functionality. A commanding mode is selectively activated on a virtual keyboard. Activating the commanding mode attributes commands to respective individual keys of the virtual keyboard. Also in response to the commanding mode, indicia suggestive of the command is presented on those individual keys to which the commands were attributed. The commands can be executed in an application in response to selection of the respective individual keys when in commanding mode.
摘要:
Provided are a complementary metal oxide semiconductor (CMOS) device and a method of manufacturing the same. In the CMOS device, a buffer layer is disposed on a silicon substrate, and a first layer including a group III-V material is disposed on the buffer layer. A second layer including a group IV material is disposed on the buffer layer or the silicon substrate while being spaced apart from the first layer.
摘要:
A method and device for performing a service. The method includes detecting whether an identifier approaches an approach recognition area, receiving identifier information from the identifier, when it is detected that the identifier approaches the approach recognition area, obtaining an address of a service provider based on the identifier information, and receiving a relevant service from the service provider based on the address of the service provider.
摘要:
Provided are a complementary metal oxide semiconductor (CMOS) device and a method of manufacturing the same. In the CMOS device, a buffer layer is disposed on a silicon substrate, and a first layer including a group III-V material is disposed on the buffer layer. A second layer including a group IV material is disposed on the buffer layer or the silicon substrate while being spaced apart from the first layer.