摘要:
A substituted aryloxyurea of the formula: ##STR1## wherein Ar represents ##STR2## in which X.sup.7 represents a hydrogen atom, a halogen atom, a cyano group, a lower alkoxy group or a trifluoromethyl group, andR.sup.1 and R.sup.2 together form together with carbon and the nitrogen atom to which they are bonded a 4-8 membered heterocyclic ring.The substituted aryloxyureas exhibit an excellent herbicidal efficacy against weeds when applied, for example, to the weeds in a wide range of period from a preemergence stage to a growth stage.The substituted aryloxyureas of the invention have the excellent advantage of maintaining high safety on crops or crop plants in spite of their herbicidal efficacy.
摘要:
A data transmission system has plural transmission units or nodes with respective addresses, for transmitting data by token passing method. Each node is capable, upon receiving the transmitted data, of confirming the presence or absence of another node of a same address, in order to avoid transmission errors, resulting from overlapping addresses.
摘要:
Disclosed is a focus detection apparatus including a light source; focusing means for focusing a light beam emitted from the light source onto an object; a prism for reflecting the light beam from the light source by its surface and for allowing return light from the object to pass therethrough to cause an astigmatism; and detection means for detecting a focusing state of the light beam on the object from the astigmatism of the return light. In this apparatus, the detection means is arranged at a position opposite to the light source to sandwich the prism therebetween, and the return light emerges from a surface thereof different from the incident surface to be guided to the detection means.
摘要:
A copying apparatus capable of effecting duplex copying and composite copying and including an intermediate tray member for storing a plurality of copy paper sheets each having one copied face and refeeding the stored copy paper sheets one sheet by one sheet and a mounting member for detachably mounting the intermediate tray member on an apparatus housing of the copying apparatus in a direction perpendicular to a transport direction of the copy paper sheets. The intermediate tray member includes a storage portion for storing the copy paper sheets, first and second transport portions for transporting the copy paper sheets to the storage portion at the time of duplex copying and composite copying, respectively and a paper feeding device for feeding the copy paper sheets stored in the storage portion.
摘要:
A hydrogenation catalyst composition useful for the hydrogenation of an oxalate diester, said composition being composed of a reduction product of a copper-containing silica gel formed by contacting an amine complex of copper with silica gel having an average particle diameter of not more than 200.mu. and a process for producing the aforesaid composition. Using a catalyst composed of the aforesaid composition, ethylene glycol and/or a glycolic acid ester can be produced from an oxalate diester efficiently with high conversions and selectivities and without causing pollution attributed to the use of a chromium-containing catalyst composition.
摘要:
In a process for producing ethylene glycol and/or a glycollic acid ester by the vapor phase catalytic hydrogenation of an oxalic acid diester in the presence of a catalyst and hydrogen gas, the improvement wherein the catalyst has the following composition formulaCuMo.sub.k Ba.sub.p O.sub.qwherein k, p and q represent gram-atoms of Mo, Ba and O, respectively, per gram-atom of Cu, k is a number of from 0 to 3, p is a number of from 0 to 6, and q is a number determined depending upon the atomic valence and gram-atoms of Cu, Mo and Ba, provided that k and p are not zero at the same time; and the aforesaid catalyst.
摘要:
A photosensitive printing plate forming material having on its surface a matting layer composed of a resin and a fine particulate material dispersed therein, said resin being at least one member selected from rosin and rosin esters.
摘要:
Propylene or isobutylene is catalytically oxidized into the corresponding nitrile with improved conversions and yields. The catalyst consists essentially of the metals; (A) Mo, (B) Bi, (C) Co, (D) Fe and (E) Zr in the predetermined atomic ratios.
摘要:
To provide a light-emitting element or a light-emitting device in which power is not consumed wastefully even if a short-circuit failure occurs. The present invention focuses on heat generated due to a short-circuit failure which occurs in a light-emitting element. A fusible alloy which is melted at temperature T2 by heat generated due to the short-circuit failure when the short-circuit failure occurs is used for at least one of a pair of electrodes in a light-emitting element, and a layer containing an organic composition which is melted at temperature T1 is formed on a surface of the electrode opposite to a surface facing the other electrode. The present inventors have reached a structure in which the temperature T2 is lower than temperature T3 at which the light-emitting element is damaged and the temperature T1 is lower than the temperature T2, and this structure can achieve the objects.
摘要:
A light emitting device having a structure in which oxygen and moisture are prevented from reaching light emitting elements, and a method of manufacturing the same, are provided. Further, the light emitting elements are sealed by using a small number of process steps, without enclosing a drying agent. The present invention has a top surface emission structure. A substrate on which the light emitting elements are formed is bonded to a transparent sealing substrate. The structure is one in which a transparent second sealing material covers the entire surface of a pixel region when bonding the two substrates, and a first sealing material (having a higher viscosity than the second sealing material), which contains a gap material (filler, fine particles, or the like) for protecting a gap between the two substrates, surrounds the pixel region. The two substrates are seated by the first sealing material and the second sealing material. Further, reaction between electrodes of the light emitting elements (cathodes or anodes) and the sealing materials can be prevented by covering the electrodes with a transparent protective layer, for example, CaF2, MgF2, or BaF2.