摘要:
The present invention relates to a recombinant expression vector, pSSA-K or pSSA-H, containing oxidative stress inducible promoter, such as sweetpotato peroxidase anionic 2 (SWEPA2), a nucleotide encoding superoxide dismutase (SOD) and a nucleotide sequence encoding ascorbate peroxidase (APX) linked to the promoter, antibiotics resistant gene, tobacco etch virus leader sequence, a polynucleotide encloding a transit peptide for chloroplast targeted expression, CaMV 35S transcription terminator, and T-DNA boarder sequence, and a method for preparing multiple stress tolerant transgenic plants using the recombinant expression vector.
摘要:
Provided are a photoreactive polymer that includes a multi-cyclicmulticyclic compound at as its main chain and a method of preparing the same. The photoreactive polymer exhibits excellent thermal stability since it includes a multi-cyclicmulticyclic compound having a high glass transition temperature at as its main chain. In addition, the photoreactive polymer has a relatively large vacancy so that a photoreactive group can move relatively freely in the main chain therein. As a result, a slow photoreaction rate, which is a disadvantage of a conventional polymer material used to form an alignment layer for a liquid crystal display device, can be overcome.
摘要:
In a six-speed manual transmission, a plurality of first synchronizers are disposed to an input shaft and at least one second synchronizer is disposed to an output shaft. Reflected inertia can be reduced, power delivery efficiency can be improved, and manufacturing costs can be reduced.
摘要:
The present invention relates to a recombinant expression vector for production of multiple stress tolerant plants, which is prepared by attaching multiple stress tolerant genes to oxidative stress inducible promoter, multiple stress tolerant plants transformed with the expression vector and a preparation method for the plants, more precisely, a recombinant expression vector for production of multiple stress tolerant plants that is prepared by combining oxidative stress inducible peroxidase promoter (SWPA2) originated from sweetpotato with multiple stress tolerant genes (SOD (superoxide dismutase) and APX (ascobate peroxidase)) to express the multiple stress tolerant genes in chloroplasts, multiple stress tolerant plants transformed with the expression vector above and a preparation method for the plants. The recombinant expression vector of the present invention is very useful for the production of transformed plants having very strong resistance against multiple stresses caused by oxidative stress inducible herbicides, cold injury, high temperature, salt damage, or various environmental pollutions generating active oxygen, so that the vector can be a great contribution to the increase of productivity of agricultural crops or mass-production of useful components.
摘要:
A multi-chip package is provided. The multi-chip package includes a plurality of chips including at least one bad chip and at least one good chip that are stacked and a plurality of through electrodes each penetrating the chips. A logic circuit included in the at least one bad chip is isolated from each of the plurality of through electrodes.
摘要:
A semiconductor memory device includes a memory cell array having a plurality of memory cells coupled between a plurality of word lines and a plurality of bit line pairs, a bit line selection circuit configured to transmit data between a selected bit line pair and a local input/output line pair in response to a column selection signal, a local global input/output gate circuit configured to transmit data between the local input/output line pair and a global input/output line pair in response to a local global input/output selection signal, and a controller configured to drive the word lines, output the column selection signal having a first voltage level to the bit line selection circuit, and output the local global input/output selection signal having a second voltage level that is lower than the first voltage level to the local global input/output gate circuit, in response to an external address signal and an external command.
摘要:
The present invention relates to a novel polyimide copolymer, a method of preparing the polyimide copolymer, a liquid crystal aligning layer including the polyimide copolymer, a method of producing the liquid crystal aligning layer, and a liquid crystal display including the liquid crystal aligning layer. The liquid crystal aligning layer that includes the polyimide copolymer according to the present invention is advantageous in that when ultraviolet rays are radiated on movable chains of the polyamic acid copolymer to perform alignment before a polyimide copolymer is imidized and heat treatment is then performed to conduct imidization, thermal stability is excellent, residual images are not formed, and alignment of liquid crystals is excellent.
摘要:
Disclosed is polyimide of the following Formula 1, a polyamic acid which is a precursor of the polyimide, and a method for preparing thereof. In Formula 1, R is a tetravalent organic group, and n is an integer of 1 to 1000. A liquid crystal alignment layer which contains the polyimide according to the present invention has excellent thermal stability, no residual images, and excellent alignment of liquid crystals.
摘要:
In a six-speed manual transmission, a plurality of first synchronizers are disposed to an input shaft and at least one second synchronizer is disposed to an output shaft. Reflected inertia can be reduced, power delivery efficiency can be improved, and manufacturing costs can be reduced.
摘要:
Disclosed is a method of producing a liquid crystal aligning layer, a liquid crystal aligning layer produced using the same, and a liquid crystal display including the liquid crystal aligning layer. In the liquid crystal aligning layer that is produced using the method, ultraviolet rays are radiated on movable chains of a polyamic acid polymer while the polyamic acid polymer is not imidized to perform alignment, and heat treatment is then performed to conduct imidization. Thus, thermal stability is excellent, residual images are not formed, and alignment of liquid crystals is excellent.