摘要:
A cement dispersant (especially a dispersant for concretes with ultrahigh performance) comprising as a main component a water-soluble amphoteric copolymer obtained by copolymerizing (A) a polyamide-polyamine of an alkylene oxide adduct thereof with (B) (meth)acrylic acid or an alkali metal, ammonium, or alkanolamine salt thereof and (C) a polyalkylene glycol ester of (meth)acrylic acid in an A/B/C ratio of (10-40)/(10-40)/(50-80) (wt. %); and a concrete composition (especially an ultral high-performance concrete) containing the dispersant. The dispersant satisfies all of a water-reducing effect, slump flow retention, strength development, etc.
摘要:
A superior cement dispersant and a concrete composition containing the cement dispersant, the cement dispersant being a water-soluble amphoteric copolymer which contains an alkylene oxide adduct of a polyamide polyamine having an unsaturated group and at least two types of polyalkylene glycol ester. When the cement dispersant is compounded with a concrete composition, the dispersion performance thereof increases with time, and the concrete viscosity is effectively decreased. The cement dispersant composition contains a water-soluble amphoteric copolymer or the neutralized salt thereof as an essential component, which is obtained by copolymerizing an alkylene oxide adduct of a polyamide polyamine having an unsaturated group, (meta)acrylic acid or an alkali metal, ammonium, or alkanolamine salt thereof, an ester of an alkylene glycol and methacrylic acid, and an ester of an alkylene glycol and acrylic acid. In addition, the concrete composition containing the above cement dispersant is also disclosed.
摘要:
[Object] To provide a cement dispersant and a concrete composition containing the cement dispersant, the cement dispersant having a superior effect of decreasing a high concrete paste viscosity while a water reducing effect, a slump flow retention, and rapid strength development are being satisfied in a region having a low water/binder ratio. [Solving Means] The cement dispersant for ultrahigh performance concrete is provided which is a water-soluble amphoteric copolymer obtained by copolymerizing (A) an alkylene oxide adduct of a polyamide polyamine having an unsaturated group, (B) (meta)acrylic acid or a salt thereof, (C) an ester of a short-chain alkylene glycol and (meth)acrylic acid, and (D) an ester of a long-chain alkylene glycol and (meth)acrylic acid at ratios A:B:C:D of 5 to 25:5 to 30:5 to 40:20 to 80 (percent by weight), in which the total is 100% percent by weight. In addition, the concrete composition containing the above cement dispersant is provided.
摘要:
An object of the present invention is to clone a gene which is involved in synthesis of fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bone at position Δ12. The present invention provides a gene having any one of the following nucleotide sequences: (A) a nucleotide sequence encoding an amino acid sequence shown in SEQ ID NO: 1 or 12; (B) a nucleotide sequence encoding an amino acid sequence comprising a deletion, addition or substitution of one or several amino acids with respect to the amino acid sequence shown in SEQ NO: 1 or 12, and having an ability of synthesizing fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bond at position Δ12; (C) a nucleotide sequence shown in SEQ ID NO: 2 or 13; (D) a nucleotide sequence comprising a deletion, addition or substitution of one or several nucleotides with respect to the nucleotide sequence shown in SEQ ID NO: 2 or 13, and encoding a protein having an ability of synthesizing fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bond at position Δ12; and (E) a nucleotide sequence hybridizing with the nucleotide sequence shown in SEQ ID NO: 2 or 13 or a complementary sequence thereof under stringent conditions, and encoding a protein having an ability of synthesizing fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bond at position Δ12.
摘要翻译:本发明的一个目的是克隆一个基因,该基因参与合成具有在位置Delta12处具有双重骨的脂肪酸的具有反式11-,顺式-13-共轭双键的脂肪酸。 本发明提供具有以下核苷酸序列之一的基因:(A)编码SEQ ID NO:1或12所示氨基酸序列的核苷酸序列; (B)编码氨基酸序列的核苷酸序列,所述氨基酸序列包含相对于SEQ ID NO:1或12所示的氨基酸序列缺失,添加或取代一个或几个氨基酸,并且具有合成具有反式 -11-,顺式-13-共轭双键,在位置Delta12具有双键的脂肪酸; (C)SEQ ID NO:2或13所示的核苷酸序列; (D)包含相对于SEQ ID NO:2或13所示的核苷酸序列的一个或多个核苷酸的缺失,添加或取代的核苷酸序列,并编码具有合成具有反式-11- ,在位置Delta12处具有双键的脂肪酸的顺式-13-共轭双键; 和(E)在严格条件下与SEQ ID NO:2或13所示核苷酸序列或其互补序列杂交的核苷酸序列,并编码具有合成具有反式-11-顺式-13 在位置Delta12具有双键脂肪酸的共轭双键。
摘要:
An RFID evaluation system which evaluates an RFID system is disclosed, the RFID evaluation system including a tag position and posture varying unit which accepts a manual operation from an operator to vary a position of an RFID tag and automatically varies a posture of the RFID tag; an antenna unit which transmits a radio signal for testing to the RFID tag and which receives the radio signal transmitted from the RFID tag; and a control unit which, for each combination of the position and the posture of the RFID tag, controls the antenna unit to measure a response radio wave strength of the RFID tag, wherein the control unit includes a position measuring unit which measures the position of the RFID tag; and an information providing unit which provides information for moving the RFID tag to a target position.
摘要:
The object of the present invention is to isolate Rf gene, particularly Rf1 gene derived from radish, and identify its structure. The present invention provides a protein involved in restoration of a cytoplasmic male sterile individual to fertility which has 14 or more pentatricopeptide repeat (hereafter may be abbreviated to PPR) motifs, wherein a group of the motifs is divided into 3 or more blocks, each of the individual blocks has at least 2 or more PPR motifs, and the block in a carboxyl terminal (C terminal) side has 4 PPR motifs.
摘要:
A novel gene that can be used to identify male-sterile cytoplasm in plants, for example, of the Cruciferae family, and a method for producing hybrid plants using this gene are provided. This novel cms cytoplasmic gene is valuable in that it can be utilized in the production of hybrid plant seeds. This invention is also useful for rapidly identifying Kosena cms cytoplasm, a novel cytoplasm which exhibits characteristics valuable in plant breeding. In addition, this gene may possibly be used to confer cms onto a broad range of plant species, not limited to those of the Cruciferae family, by its introduction into nuclear or mitochondrial genomes.
摘要:
The object of the present invention is to isolate Rf gene, particularly Rf1 gene derived from radish, and identify its structure. The present invention provides a protein involved in restoration of a cytoplasmic male sterile individual to fertility which has 14 or more pentatricopeptide repeat (hereafter may be abbreviated to PPR) motifs, wherein a group of the motifs is divided into 3 or more blocks, each of the individual blocks has at least 2 or more PPR motifs, and the block in a carboxyl terminal (C terminal) side has 4 PPR motifs.
摘要:
An oilseed crop with altered amino acid composition and/or fatty acid composition is provided. The crop is prepared by introducing antisense gene of a seed storage protein into the oilseed crop.
摘要:
A silicon-containing high strength steel sheet having isotropic high ductility and toughness in all directions independently of the rolling direction comprising 0.03 to 0.15% C, 0.7 to 2.3% Si, 0.7 to 2.0% Mn with the balance being iron and unavoidable impurities, in which the ratio of Si/Mn is between 0.6 and 1.5 and the content of S is maintained in an amount as low as possible below that normally contained as an unavoidable impurity.