摘要:
Disclosed herein is a selective metalorganic vapor phase growth method of a group III-V compound semiconductor containing at least Al and In, in which a ratio of an HCl gas supply amount to a supply amount of a group III metalorganic material (�HCl supply amount!/�group III supply amount!) is set in a range of 0.01-0.3. Hence, a polycrystal density is decreased to ensure a selectivity, and a grown crystal composition can be controlled so as not to be excessive in the Al composition so that composition control can be done easily.
摘要:
The present invention is directed to a silicon polyimide precursor composition which has a viscosity suitable for the formation of films by application or another mean and which is capable of forming hard and tough films having excellent heat resistance, low coefficient of thermal expansion and strong adhesive force by heating the films, the above-mentioned films being formed by the chemical bond between silicon and polyimide. Another feature of the present invention is directed to a method for preparing a crosslinked/cured material of the aforesaid silicon polyimide precursor composition.That is, the present invention is connected with a soluble silicon polyimide precursor composition which comprises 0.5 to 40% by weight of a silicon polyimide precursor represented by the following formula (I) on another precursor obtained by imidizing the compound represented by the formula (I) and having a logarithmic viscosity number of 0.05 to 5 dl/g, 0.5 to 40% by weight of a condensate of a silicon compound represented by the following formula (II) and having a logarithmic viscosity number of 0.01 to 0.5 dl/g, and 50 to 99% by weight of a solvent: ##STR1## wherein G is ##STR2## or a hydrogen atom (except the case of n=0), R.sup.1 is independently a tetravalent carbon cyclic aromatic group, R.sup.2 is independently a carbon cyclic aromatic group, R.sup.3 is ##STR3## R.sup.4 is independently methyl or phenyl, R.sup.7 is independently alkyl having 1 to 6 carbon atoms or hydrogen, X is alkoxy, acetoxy or hydroxyl, n is n.gtoreq.0, k is 2.5.ltoreq.k.ltoreq.3, and m is 3.5
摘要:
Agricultural fungicidal compositions containing as an active ingredient one or more 4-aminoquinazoline derivatives. The amino group is substituted, e.g., with a phenoxyalkylene, and the quinazoline nucleus may be substituted at 2- and or 6-positions.
摘要:
A communication game system includes a first computer and at least one second computer. When an operational designation has been performed, the second computer transmits to the first request a request for permission to perform an action corresponding to the operation. Until a conclusion to the request is received, the second computer produces an image in which a character performs a first act of the action. The first computer determines whether the action is permitted and transmits its conclusion to the second computer. When receiving the conclusion before the end of the first act, the second computer produces an image in which the player character performs a second act according to the conclusion. On the other hand, when the conclusion is received after the end of the first act, the second computer produces, at the end of the first act, an image in which the player character performs a third act until the reception of the conclusion.
摘要:
A communication game system includes a parent device and at least one child device. When a predetermined operational designation has been carried out with respect to an object at the child device, for example, the child device transmits to the parent device a request for permission to perform an action corresponding to the operation. Until a conclusion as to the request is received, the child device reproduces an image in which a player character is performing a first act of the action. The parent device determines whether the action can be permitted or not in response to the request from the child device, and transmits a conclusion of determination to the child device. When receiving the conclusion by the time of end of the first act, the child device reproduces an image in which the player character is performing a second act according to the conclusion after end of the first act. On the other hand, when not receiving the conclusion by the time of end of the first act, the child device reproduces an image in which the player character is performing a third act in conformity to the first act and the second act until the reception of the conclusion.
摘要:
Provided is a semiconductor laser including: a substrate (semiconductor substrate); an optical waveguide (active layer waveguide) with a mesa structure that includes an active layer (strain-compensated multiple quantum well active layer) including Al, is provided over the semiconductor substrate; a semiconductor protective layer that is provided so as to cover the top and the side of a mesa of the active layer waveguide; a current block layer that is provided so as to embed the active layer waveguide and the semiconductor protective layer; and a clad layer (p-type InP clad layer) that is provided over the semiconductor protective layer and the current block layer, wherein, the semiconductor protective layer has a semiconductor layer (p-type InGaAsP protective layer) that includes As, but does not include Al.
摘要:
A communication game system includes a parent device and at least one child device. When a predetermined operational designation has been carried out with respect to an object at the child device, for example, the child device transmits to the parent device a request for permission to perform an action corresponding to the operation. Until a conclusion as to the request is received, the child device reproduces an image in which a player character is performing a first act of the action. The parent device determines whether the action can be permitted or not in response to the request from the child device, and transmits a conclusion of determination to the child device. When receiving the conclusion by the time of end of the first act, the child device reproduces an image in which the player character is performing a second act according to the conclusion after end of the first act. On the other hand, when not receiving the conclusion by the time of end of the first act, the child device reproduces an image in which the player character is performing a third act in conformity to the first act and the second act until the reception of the conclusion.
摘要:
Characteristic of chronic myelogenous leukemia (CML) is the presence of the chimeric p120.sup.bcr-abl protein possessing elevated protein tyrosine kinase activity relative to normal c-abl tyrosine kinase. Hematopoietic progenitors isolated from CML patients in the chronic phase contain a constitutively tyrosine phosphorylated protein that migrates at approximately 62 kDa by SDS-PAGE and associates with the p120 ras GTPase-activating protein (GAP). This novel protein, called p62.sup.dok (p62 protein downstream of tyrosine kinases), was isolated from a hematopoietic cell line expressing p120.sup.bcr-abl. Association of p62.sup.dok with GAP correlates with its tyrosine phosphorylation. p62.sup.dok is rapidly tyrosine phosphorylated upon activation of the c-kit receptor, implicating it as a component of a signal transduction pathway downstream of receptor tyrosine kinases.
摘要:
Origin of Replication Complex (ORC) genes, nucleic acids which encode ORC proteins and hybridization reagents, probes and primers capable of hybridizing with ORC genes and methods for screening chemical libraries for lead compounds for pharmacological agents useful in the diagnosis or treatment of disease associated undesirable cell growth are provided. An exemplary screen involves forming a mixture comprising a recombinant ORC protein, a natural intracellular ORC protein binding target, and a candidate pharmacological agent; incubating the mixture under conditions whereby, but for the presence of said candidate pharmacological agent, said ORC protein selectively binds said binding target; and detecting the presence or absence of specific binding of said ORC protein to said binding target.
摘要:
The present invention provides diamino compounds and liquid crystal aligning films comprising polyimides which are obtained from the said diamino compounds represented by the general formula: ##STR1## wherein R.sub.1 indicates an alkyl group having 3 to 22 carbon atoms, R.sub.2 indicates a hydrogen atom or an alkyl group having 1 to 22 carbon atoms, and R.sub.3 -R.sub.10 indicate a hydrogen atom or a methyl group, respectively.The liquid crystal aligning films are useful for STN mode display cells in realizing a high pretilt angle.