摘要:
A photovoltaic device has a high photoelectric conversion efficiency with a material for a photovoltaic device including an electron donating organic material having a structure represented by Formula (1):
摘要:
Disclosed are novel HP530 compounds, their derivatives or their pharmaceutically permissible salts, a process for preparing them and an antitumor substances containing them as active ingredient. The HP530 compounds and their derivatives expressed by the general formula below can be prepared by cultivating Streptomyces sp. HP530 (FERM BP-2786) or and chemically derivation. ##STR1## where X is a C.sub.2 -C.sub.4 acyl group or a hydrogen atom, Y is a C.sub.2 -C.sub.4 acyl group or a hydrogen atom and Z is a group expressed by the formula (II), (III) or (IV). ##STR2##
摘要:
An optical material formed of a copolymer is disclosed. The copolymer is obtained by polymerizing a monomer composition composed of a particular N-substituted trifunctional monomer having a triazine ring structure and a monomer copolymerizable with the isocyanurate. Where the copolymerizable monomer is a specific aliphatic bifunctional monomer, the monomer composition additionally contains a further monomer which is copolymerizable with the aforementioned components and contains at least one ethylenically-unsaturated group.
摘要:
A polysaccharide RON substance having the ultraviolet absorption spectrum depicted in FIG. 1, the infrared absorption spectrum depicted in FIG. 2 and the .sup.13 C-NMR spectrum depicted in FIG. 3 is obtained from rice bran by extraction and purification; and pharmacological composition containing said RON substance.
摘要:
Composite abrasive particles for use in magnetic abrasive polishing in which three phases of corundum-phase alumina, .alpha.-iron and iron-alumina spinel are detected by the powder X-ray diffractometry and which contains 48 wt % or more of iron and 11 wt % or more of aluminum. The composite abrasive particles are prepared by mixing starting materials of powders of aluminum and an iron oxide in such a ratio that three phases of corundum-phase alumina, .alpha.-iron and iron-alumina spinel may coexist and so that iron may be contained in an amount of 48 wt % or more and aluminum may be contained in an amount of 11 wt % or more, subjecting the materials to a solid-phase exothermic reaction, and breaking the resultant solid product.
摘要:
A guide groove has two protrusions on a side face, and a slider has three concave grooves, into which the two protrusions are capable of being fitted, on a sidewall. When the slider is located at a lock position, the two protrusions are fitted into two of the three concave grooves on one end side of the guide groove to restrict movement of the slider. When the slider is located at an unlock position, the two protrusions are fitted into two of the three concave grooves on the other end side of the guide groove to restrict movement of the slider.
摘要:
A guide groove (31) has two protrusions (4) on a side face (311), and a slider (32) has three concave grooves (5), into which the two protrusions (4) are capable of being fitted, on a sidewall (324). When the slider (32) is located at a lock position, the two protrusions (4) are fitted into two of the three concave grooves (5) on one end side of the guide groove (31) to restrict movement of the slider (32). When the slider (32) is located at an unlock position, the two protrusions (4) are fitted into two of the three concave grooves (5) on the other end side of the guide groove (31) to restrict movement of the slider (32).
摘要:
A self-standing type golf bag comprising a light-weight main body and a pair of support legs is disclosed wherein the support legs are pushed out and spread with ease even if the weight of golf clubs and other items placed in the golf bag is heavy. The golf bag comprises a main body 12, support legs 30 attached to the main body, a push-up plate 34 attached to a lower end of the main body 12, push-up rods 36 whose upper ends are coupled to the support legs and whose lower ends are coupled to the push-up plate, and a support belt 102 attached to the main body 12 for supporting the push-up rods 36 from an inner side of the push-up rods.
摘要:
A photovoltaic device has a high photoelectric conversion efficiency with a material for a photovoltaic device including an electron donating organic material having a structure represented by Formula (1):
摘要:
A plastic lens is made of a copolymer which has been obtained by copolymerizing 10-80 wt. % of a first monomer represented by the general formula (I) given below and 20-90 wt. % of a second monomer copolymerizable with the first monomer. General formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 mean individually a hydrogen atom or methyl group, and n and m denote integers of 0-4 in total.