摘要:
A potential generating circuit comprises a capacitor (4); a ferroelectric capacitor (6) connected in series to the capacitor (4); an output terminal (11); a capacitor (10) for grounding the output terminal (11); a switch (9) for connecting a connecting node (5) between the two capacitors (4, 6) to the output terminal (11); and a switch (1) for connecting the connecting node (5) to the ground; wherein during a first period, with the switches (1) and (9) placed in the OFF state, a terminal (3) is provided with a positive potential and a terminal (7) is grounded; wherein during a second period following the first period, the terminal (3) is grounded and the switch (9) is placed in the ON state; wherein during a third period following the second period, the switch (9) is placed in the OFF state, the switch (1) is placed in the ON state, and the terminal (7) is provided with a positive potential; wherein during a fourth period following the third period, the terminal (7) is grounded; and wherein the first through fourth periods are repeated.
摘要:
A powdered material spraying device comprising a quantitative spraying device provided for a material discharge port of the powdered material storage hopper via a material feed valve, a cover being provided for the material feed port of the powdered material storage hopper. The spraying device includes a cylindrical body connected with the material discharge port of the powdered material storage hopper, an elastic membrane with a penetrating aperture provided so as to form a bottom of the cylindrical body at its lower opening end, and a dispersion chamber connected under the lower opening end of the cylindrical body via the elastic membrane. The dispersion chamber has a pulsating vibration air supply port for supplying a positive pulsating vibration air to the dispersion chamber and a discharge port. A bypass pipe is connected between the cylindrical body and the dispersion chamber and the powdered material is sprayed from a tip end of a conduit connected with the discharge port of the dispersion chamber.
摘要:
A silver halide photographic light-sensitive emulsion containing, at a ratio of 50% or more of the total projected area of silver halide grains, tabular silver halide grains each having faces as parallel major faces and an aspect ratio of 2 or more and including 10 or more dislocation lines per grain, and containing at least one compound represented by formula (1) or (2) below: wherein A represents an atomic group required to form a nitrogen-containing hetero ring, each of B and E independently represents a divalent group containing at least one divalent group selected from the group consisting of alkylene, arylene, —O—, —S—, —SO2—, —CO2—, and —N(R5)-, wherein R5 represents a hydrogen atom, an alkyl group, or an aryl group, provided that each of —O—, —S—, —SO2—, —CO2—, and —N(R5)- is adjacent to and connects with alkylene or arylene, and that B does not bond to the nitrogen atom which forms a hetero ring and which bonds to the carbon atom by a double bond, each of R1 and R2 independently represents an alkyl group or an aralkyl group, each of R3 and R4 represents a substituent, and X represents an anion group, provided that no X exists in the case of intramolecular salt.
摘要翻译:一种卤化银摄影感光乳剂,其以卤化银颗粒的总投影面积的50%或更多的比例,各自具有平面主面的平面状卤化银颗粒和2倍以上的纵横比包括10 或更多的位错线,并且含有至少一种由下式(1)或(2)表示的化合物:其中A表示形成含氮杂环所需的原子团,B和E各自独立地表示二价 含有至少一个选自亚烷基,亚芳基,-O - , - S - , - SO 2 - , - CO 2 - 和-N(R 5) - 的二价基团,其中R 5表示氢原子,烷基 基团或芳基,条件是-O - , - S - , - SO 2 - , - CO 2 - 和-N(R 5) - 中的每一个与亚烷基或亚芳基相邻并连接,并且B不键合 与形成杂环的氮原子并且通过双键与碳原子键合,R1和R2各自独立地表示 y表示烷基或芳烷基,R3和R4各自表示取代基,X表示阴离子基,条件是在分子内盐中不存在X。
摘要:
A Silver halide photographic material high in sensitivity and decreased in residual color is disclosed, which comprises at least one compound represented by the following formula (I): wherein Z1 represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, a carbon atom or a nitrogen atom; Q represents a group necessary for forming a methine dye; M1 represents a charge equilibrium counter ion; m1 represents the number necessary for neutralizing a charge of the molecule; Vp represents a group having a log P value lower than that of Cl; q1 represents 1, 2, 3 or 4; and R1 is represented by following: R1=(La)k1CONHSO2R11, R1=(Lb)k2SO2NHCOR12, R1=(Lc)k3CONHCOR13, R1=(Ld)k4SO2NHSO2R14 wherein R11, R12, R13 and R14 each represents an alkyl group, an aryl group, a heterocyclic group, an alkoxyl group, an aryloxy group, a heterocyclyloxy group or an amino group; La, Lb, Lc and Ld each represents a methylene group; and k1, k2, k3 a nd k4 each represents an integer of 1 to 18.
摘要:
A mixing and blending method for powdered or granular material includes supplying pulsating vibration air into an airtight tank from a bottom thereof. An airtight tank having a porous bottom plate on which the material is stored is provided for the mixing and blending method. In the system pulsating vibration air is generated by periodically increasing and decreasing the amount of blowing air at a low frequency. Pulsating vibration air is introduced into the airtight tank from the bottom of the airtight tank so as to generate air flow going upward through the porous bottom of the airtight tank. As a result, powdered or granular material stored on the porous bottom plate in the airtight tank is uniformly mixed and blended in the airtight tank while continuously moving up and down as in a convectional manner.
摘要:
A rear projection screen is used for a projection optical system where projected lights perpendicularly enter the screen from the rear face of the screen includes a Fresnel lens sheet incorporating a prism and a lenticular lens sheet that horizontally disperses lights emitted from the Fresnel lens sheet incorporating a prism. The Fresnel lens sheet incorporating a prism has a linear prism, which acts as a linear Fresnel lens for converging image lights in the screen height direction, at the projection light source side, and has a circular Fresnel lens, which acts to converge image lights in the direction of the screen center, at the observer side. According to the rear projection screen, the peak screen gain is increased and the peripheral luminance ratio is improved without degrading light utilization efficiency.
摘要:
The method for forming a semiconductor microstructure of this invention includes the steps of: forming a mask pattern having a first opening and a second opening on a substrate having a semiconductor layer as an upper portion thereof; and selectively etching the semiconductor layer using the mask pattern to form a semiconductor microstructure extending in a first direction parallel to a surface of the substrate, wherein, in the step of selectively etching the semiconductor layer, an etching rate in a second direction vertical to the first direction and parallel to the surface of the substrate is substantially zero with respect to an etching rate in the first direction, and a width of the semiconductor microstructure is substantially equal to a shortest distance between the first opening and the second opening in the second direction.
摘要:
A silver halide photographic material is processed with a developing solution containing at least one kind of developing agent represented by the following general formula (A): ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different, and each represents a hydrogen atom or a substituent group, with the proviso that R.sub.1 and R.sub.2 are not methyl groups at the same time nor a combination of a hydrogen atom and a methyl group, thereby providing a novel method for forming an image by use of the developing solution not using a dihydroxybenzene compound as the developing agent, and more particularly a superhigh contrast negative image by use of the photographic material containing a hydrazine compound.
摘要:
The present invention discloses a method and an apparatus for removing deposits from materials. By feeding unidirectional pulsating air pulsating while flowing in one direction, porous member (4), to materials (m) supplied from above the porous member (4) stretched laterally in a main body case (1A) of a removing apparatus main body (1), the deposits from the materials (m) are removed by the action of the unidirectional pulsating air. The apparatus comprises a removing apparatus main body (1) possessing a feed port (5) and a product outlet (11) disposed above a porous member (4) stretched laterally in a main body case (1A), and an air vibration generating device (30) for feeding unidirectional pulsating air pulsating while flowing in one direction, toward the porous member (4) from above the porous member (4).
摘要:
By etching, a first groove and a second groove are formed in a silicon substrate. Surfaces of the side walls of these grooves have a surface orientation of (111). The first and second grooves sandwich a silicon thin plate therebetween, which is formed as a part of the silicon substrate. The silicon thin plate is sufficiently thin so as to act as a quantum well. Further, a pair of silicon oxide films acting as tunneling barriers are formed on the surfaces of the side walls of the silicon thin plate, thus forming a double barrier structure. In addition, a pair of polysilicon electrodes are formed and sandwich the double barrier structure. As a result, the structure of a resonance tunneling diode, which utilizes the resonance tunneling effect, is provided. Adding a third electrode to the above structure provides a hot electron transistor. In the quantization functional devices having the above-described configuration, the satisfactory resonance effect is obtained due to a high crystallinity of the quantum well, a high potential barrier brought by the high quality silicon oxide films used as the tunneling barriers and a smooth interface between the quantum well and the tunneling barriers.