摘要:
In a field effect transistor, an Si layer, an SiC (Si1-yCy) channel layer, a CN gate insulating film made of a carbon nitride layer (CN) and a gate electrode are deposited in this order on an Si substrate. The thickness of the SiC channel layer is set to a value that is less than or equal to the critical thickness so that a dislocation due to a strain does not occur according to the carbon content. A source region and a drain region are formed on opposite sides of the SiC channel layer, and a source electrode and a drain electrode are provided on the source region and the drain region, respectively.
摘要:
In a two-position pushbutton switch, a cushioning member is placed on at least one of first and second click springs, and the click spring is pressed via the cushioning member, thereby making a first press stroke long. A guide member is provided to guide the motion of a driving member. The driving member is slid along the guide member in the pressing direction of a key top.
摘要:
A liquid discharging method of regulating and directing an air bubble to a discharge port by a substrate having a heat generating surface for generating heat for creating an air bubble in a liquid disposed in face-to-face relationship with a liquid discharge port, a movable member provided so as to intervene between the heat generating surface and the discharge port, and having a free end displaceable by the air bubble, the free end or a changing portion being located in an area opposed to the minimum area region of the discharge port or upstream of the opposed area, and an opposed surface opposed to a surface which provides the heat generating surface side of the movable member when the free end of the movable member is displaced by the air bubble, and fixed to cooperate with the movable member during the displacement of the movable member to direct the air bubble toward the discharge port.
摘要:
A method of recording (preserving) and reproducing an image is disclosed. The x and y axes are assumed on the plane of an original image, the z axis (density axis) is assumed to be perpendicular to the x and y axes, and a space defined by the x, y, and z axes is divided into rectangular solid cells. The volume ratio below a density distribution curved surface of the volume of each rectangular solid is recorded. Upon reproduction, the curved surface is reproduced based on the volume ratios of the rectangular solids which the density distribution curved surface crosses, and those of rectangular solids adjacent thereto.In a four-dimensional Euclidean space defined by an image plane (x,y), a density or brightness D, and time or a frame f, an image is expressed by a solid in this space. This space is divided into four-dimensional rectangular solids, and an amount proportional to the volume of the solid in each rectangular solid is recorded or transmitted. Upon reproduction, the solid is reproduced based on the volume amounts of the rectangular solids and those of rectangular solids adjacent thereto, thereby reproducing a dynamic image.
摘要:
(E)-N-(3-Chloro-2-propenyl)-N-methyl-1naphthylenemethanamine and (E)-3-chloro-N-(3-chloro-2-propenyl)-N-methylbenzo[b]thiophene-7-methanamine which are useful as intermediates in the production of enyne compounds which exhibit squalene epoxidase inhibiting activity and anti-Eumycetes activity.
摘要:
A process for producing an enyne derivative, and intermediate, which is useful for preparing compounds showing strong inhibiting activities against squalane epoxidase of Eumycetes and strong anti-cholesterol activities. The process comprises reacting a compound of the formula: ##STR1## wherein W is a halogen atom, with an acetylene derivative, in the presence of a palladium catalyst, to obtain a compound of the formula: ##STR2## and, if necessary, N-alkylating this compound.
摘要翻译:一种生产烯炔衍生物和中间体的方法,其可用于制备显示对Eumycetes的角鲨烷环氧酶的强抑制活性的化合物和强的抗胆固醇活性。 该方法包括在钯催化剂存在下使下式的化合物(*化学结构*)(Ⅳ)(其中W是卤素原子)与乙炔衍生物反应,得到下式化合物:(* CHEMICAL 结构*)(VII),如果需要,N-烷基化该化合物。
摘要:
Novel DC-89 derivatives as shown below have an excellent anti-tumor activity, and thus are useful as anti-tumor agent ##STR1## wherein L represents chlorine or bromine; R represents ##STR2## (wherein n represents an integer of 4 to 7) or ##STR3## (wherein Y represents oxygen or N--M).
摘要:
The present invention relates to a compound having the formula: ##STR1## wherein R is a hydrogen atom, a carboxyl-protecting group or a negative charge and Q is a hydrogen atom, a halogen atom, a hydroxyl group, an acetoxy group, a carbamoyloxy group, an azide group, a substituted or unsubstituted quarternary ammonio group or a substituted or unsubstituted heterocyclic thio group having at least one hetero atom selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, or a non-toxic salt or physiologically hydrolyzable non-toxic ester thereof; a process for producing it; and an antibacterial agent comprising it as an active ingredient.Further, the present invention also relates to a compound having the formula: ##STR2## wherein R.sup.3 is a hydrogen atom or an amino-protecting group, and each of R.sup.4 and R.sup.5 which may be the same or different is a hydrogen atom or a carboxyl-protecting group, or a salt thereof; and a process for producing it.
摘要:
A liquid jet method for ejecting liquid using a bubble created by heating the liquid in a passage, characterized in that a non-dimensional number Z which is determined by the nature of the liquid, a heat flux and a configuration of the passage and which is specific to a recording head is not less than 0.5 and not more than 16; whereZ.ident.(.pi./6).sup.1/2 Tgk(p.sub.g /q.sub.0).sup.3/2 /(.rho..sub.g Lg.multidot.a.multidot.S.sub.H A).sup.1/2 ;Tg is a superheat limit temperature of the major component of the liquid;Pg is a saturated vapor pressure of the major component of the liquid at temperature Tg;.rho.g is a saturated vapor density of the major component of the liquid at temperature Tg;Lg is a latent image of vaporization of the major component of the liquid at temperature Tg;k is a heat conductivity of the major component of the liquid at the temperature of the recording head before heating;a is a thermal diffusivity of the major component of the liquid at the temperature of the recording head before heating;q.sub.0 is a flux of the heat which heats the liquid;S.sub.H is an area of that part (heating surface of the heat generating element) which heats the liquid;A is an inertance of the passage under the conditions that the heating surface is a pressure source, that the liquid supply opening and the liquid ejection opening are open boundaries, and that the wall defining the passage is a wall (fixed) boundary;.pi. is the number .pi.;W is the work done by a bubble on the liquid, andQ is the heat applied from the heat generating element to the liquid from the start of the heating to the creation of the bubble.