Abstract:
A driving method for a direct addressing type liquid crystal display device for displaying gradation by changing the amplitude of voltages applied to pixels, wherein a series of voltage pulses, as signal voltages, composed of a plurality of different voltage levels are applied in order to display a specified gradation, and for a display, a plurality of kinds of gradation in which a part of the voltage levels is commonly used are selected.
Abstract:
A selection pulse sequence obtained by arranging time-sequentially selection pulse vectors which are applied to simultaneously selected scanning electrodes is formed by repeating a subsequence which has a time period of 1/n (n is an integer of n >/= 2) times of one frame (a time period in which addressing operations are finished).
Abstract:
A method of driving a picture display device having a plurality (an M number) of row electrodes and a plurality of column electrodes, by selecting an L number (L >/= 3) of row electrodes simultaneously and by applying to the row electrodes voltages based on signals obtained by developing in time sequence column vectors of an M row - N column orthogonal matrix S (having elements 1, -1 and 0), wherein column electrode display pattern vectors (x = x1, x2, ... xM) which have as elements display patterns (1: OFF, -1: ON), corresponding to simultaneously selected row electrodes, on a specified column electrode, and column electrode voltage sequence vectors (y) = (y1, y2, ... yN) which have as elements voltage levels, on the column electrode which consists of an N number of voltage pulses arranged in time sequence in a display cycle, have a relation of (y1, y2, ... yN) = (x1, x2, ... xM)(S), wherein when DELTA y1 = | y1, - y1-1 | (i = 2-N), the sum Q of the maximum value DELTA yMAX1 of DELTA y1 to (x) = (1, 1, ... 1) and the maximum value DELTA yMAX2 of DELTA y1 to (1, -1, 1, -1, ...) substantially satisfies Q
Abstract:
An expression vector capable of expressing in a fission yeast Schizosaccharomyces pombe; a multicloning vector for constructing the expression vector; a method of constructing the expression vector; a transformant holding the expression vector; and a process for producing a foreign protein by using the transformant. The multicloning vector has a sequence of -ACATGT- starting with the 5' side at the tip of the multicloning site as the restriction enzyme recognition site for introducing a structural gene of a foreign protein. An expression vector is constructed by introducing a structural gene of a foreign protein by using the above recognition site in such a manner that the tip of the structural gene will have a sequence of -ACATGN- (N being an arbitrary base) starting with the 5' side and that the ATG region of the sequence will function as a translation initiation site of the structural gene. Since it is possible to use an arbitrary base as the N in the sequence of ATGN of the expression vector, it becomes possible to introduce a structural gene of any foreign protein and to express the structural gene to a high level.
Abstract:
A method of treating an outdoor article which comprises forming athin coating on the surface of a hydrophobic synthetic resin coating of an outdoor article by treating the surface with a surface treatment comprising 0.01 - 100 parts by weight of a silane compound (A) having a silanol group formed by hydrolyzing a tetraalkoxysilane or oligomer thereof and 100 parts by weight of a medium. It can prevent streaky stain from occurring in the part where raindrops gather and flow , such as the lower part of a window frame of a building.
Abstract:
A process for producing a fluoropolymer containing a fluoroolefin unit as the principal constitutional unit, which comprises employing CF3(CF2)nCH2CH3 or CF3(CF2)nH (wherein n is an integer from 1 to 8) as a polymerization medium and CF2ClCF2CHClF and/or CF3CF2CHCl2 as a chain transfer agent. The process affords a fluoropolymer having favorable resistances to heat, solvents, chemicals, etc., by the use of a polymerization medium which is less apt to cause environmental destruction. The chain transfer agent has good compatibility with the polymerization medium which is less apt to cause environmental destruction and thus can effectively produce a fluoropolymer having favorable resistances to heat, solvents, etc. Moreover, it has high affinities for both the objective polymer and the polymerization medium, and can easily be handled in the post-treatment step such as granulation and drying.
Abstract:
A process for producing a dichloropentafluoropropane, which comprises subjecting CF2=CF2 and CCl3X (wherein X is Cl, F or H) to an addition reaction, and reducing and/or fluorinating the resulting C3Cl3F4X to obtain C3Cl2F5H.
Abstract:
A polyol composition for use in the production of a rigid polyurethane foam by the spray process, and a method of producing said foam from said composition by said process. This composition is characterized by comprising a polyol based on an ethylene-diamine/alkylene oxide adduct, a blowing agent based on a halogenated hydrocarbon in an amount smaller than that used in the conventional production or a rigid polyurethane foam by the spray process, and a large amount of water. More specifically the polyol composition comprises a polyol containing at least 45 % by weight of a polyol based on an ethylenediamine/alkylene oxide adduct and having a mean hydroxyl value of 250 to 550, and a blowing agent comprising at most 45 % by weight of a blowing agent based on a low-boiling halogenated hydrocarbon and 1 to 6 parts by weight of water per 100 parts by weight of said polyol.
Abstract:
The invention provides peptide derivatives comprising synthetic cyclic peptides represented by formula (I), or salts thereof, wherein R represents an amino acid residue or an oligo- or polypeptide residue, and a pharmaceutical agent containing said derivative as an active ingredient and inhibiting adhesion of animal cells to a substrate. The peptide derivatives are stable to hydrolysis by enzymes, and the pharmaceutical agent is effective in inhibiting adhesion of animal cells to a substrate, depressing metastasis of cancer cells, and inhibiting agglutination of platelets.
Abstract:
A plasma display protective plate provided over the front surface of a plasma display to block near-infrared radiation and electromagnetic waves which are emitted from the plasma display, to prevent external light from reflecting and to protect the display main part. An electromagnetic wave shielding conductive film (2) which is a multilayer film made of an oxide and a metal, electrodes (3) which are electrically connected to the conductive film (2), scattering-preventive resin films (5), and a near-infrared absorbing resin film (6) are formed on a substrate (1) of a glass plate to provide the protective plate.