Workability and stability of lightweight aggregate concrete from rheology perspective
Workability and stability of lightweight aggregate concrete from rheology perspective
... study on workability and stability of fresh lightweight aggregate concrete (LWAC) from rheology perspective It involves using rheological parameters of Bingham model, which are yield stress and plastic ... particles (Du and Folliard, 2005) and aggregate in normal-weight aggregate concrete In lightweight aggregate concrete (LWAC), however, the floatation forces of the air bubbles and lightweight aggregates ... 150 7.3 EFFECT OF FREQUENCY AND AMPLITUDE ON STABILITY OF CONCRETE .155 7.4 EFFECT OF VIBRATORY ACCELERATION ON STABILITY OF CONCRETE 162 7.5 INTRODUCTION 150 SUMMARY AND CONCLUSIONS...
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Penetrability of lightweight aggregate concrete
... ratio, size of lightweight aggregate, density of lightweight aggregate and volume of lightweight aggregate has reasonable effects on penetrability properties of lightweight aggregate concrete The ... penetrability of concrete for three different types of concretes: normal weight granite concrete (NWC), lightweight aggregate concrete (LWAC) and recycled aggregates concrete (RAC) The penetrability of concrete ... strength of recycled aggregate concrete 82 Table 4.3: Summary of recycled concrete aggregate penetrability properties 86 Table 4.4: Summary of R2 Values 87 Table 4.5: Summary of Penetrability of concrete...
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Báo cáo khoa học: Thermodynamic analysis of the unfolding and stability of the dimeric DNA-binding protein HU from the hyperthermophilic eubacterium Thermotoga maritima and its E34D mutant pdf
... studied the thermal unfolding of both the wild-type HUTmar protein and its E34D mutant in acidic solutions (pH 4.00, 3.75 and 3.50) to improve the reversibility of unfolding and avoid postunfolding ... We report here the results of an extensive thermalstability study of a hyperthermophilic protein, the histonelike protein from T maritima (HUTmar-wt) and its E34D mutant, carried out using differential ... represented by the empiric equation: Fig The temperature dependence of the unfolding heat effect for the HUTmar proteins The solid line corresponds to the common DHU(T) for HUTmar-wt and its E34D mutant...
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Báo cáo khoa học: Solution structure and stability of the full-length excisionase from bacteriophage HK022 pot
... Val48–Lys49) form the second b-sheet The Ó FEBS 2003 Structure and stability of HK022 excisionase (Eur J Biochem 270) 4853 Fig Solution state structure of HK022 Xis_C28S (A) Stereoview of the 20 conformers ... the role of the C-terminal tail, remained unclear In order to better understand the functional organization of excisionases, a structural and thermodynamic study of the excisionase from the k-like ... molecular mass of 6.070 kDa instead of 8.635 for full-length Xis), the DHspecific of 50 JÆg)1 at 130 °C corresponds well with the expected value Ó FEBS 2003 Structure and stability of HK022 excisionase...
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Báo cáo khoa học: Stereoselectivity and conformational stability of haloalkane dehalogenase DbjA from Bradyrhizobium pdf
... Stereochemistry and conformational stability of DbjA Effect of temperature The effect of temperature on DbjA activity and enantioselectivity was determined by performing activity and enantioselectivity ... Stereochemistry and conformational stability of DbjA R Chaloupkova et al Fig pH-dependent dissociation, deactivation and denaturation of DbjA: , melting temperature evaluated from measured changes ... indicate unique properties of DbjA compared with other known and characterized members of haloalkane dehalogenases Catalytic activity and structural stability in a broad range of pH conditions combined...
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Báo cáo khoa học: Role of the surface charges D72 and K8 in the function and structural stability of the cytochrome c6 from Nostoc sp. PCC 7119 potx
... protein–protein interactions [6], as well as in the structural stability of proteins [23–25] Inspection of a preliminary structural model of cyt c6, based on the known structure of cytochrome c6 from ... oxygen of D72 Taking the functionally and structurally interesting mutant D72K as a material starting point, we aimed to study the contribution of the electrostatic charges at positions D72 and K8 ... traces at the three pH conditions for (A) wild-type ( ), K8A (s), D72A ⁄ K8D (n), D72K ⁄ K8D (,) and D72A ⁄ K8A (e), and for (B) K8D ( ), D72K (s), D72N (n), D72A (,) and D72K ⁄ K8A (e) The lines...
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guide for the use of preplaced aggregate concrete for structural and mass concrete applications
... view of the lack of any performance history, the use of PA concrete was limited to the repair of bridges and tunnel linings to extend their usefulness After extensive laboratory testing, the Bureau ... requirements limit the amount of fine aggregate (sand) that can be used in the grout For PA concrete for use in beams, columns, and thin sections, the ratio of cementitious material to sand 304.1R-8 ... reveal the weakening effect of excessive bleeding of the grout within the preplaced aggregate, nor does it account for the restraining effect on the expansion of the gas bubbles The next step is the...
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Tài liệu Báo cáo khóa học: Mutations in the hydrophobic core and in the protein–RNA interface affect the packing and stability of icosahedral viruses doc
... hydrophobic core (M88V) and the other in the protein–RNA interaction (T45S), decrease the stability of the capsid Our findings illuminate the role of packing in the icosahedral lattice of the virus ... middle of the central b-strand of the coat protein dimer and its side-chain projects into the protein’s interior (Figs 1B and 8) The two Met88 residues are in close proximity to one another at the ... with valine (C and D), the cavity volume increased to 43 A3, reflecting a reduction in the surface area of the residue (% 59 A2) and in the interactions occurring there (corresponding to the b-sheet)...
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Tài liệu Báo cáo Y học: Structural diversity and transcription of class III peroxidases from Arabidopsis thaliana docx
... ortholog of HRPC2 (91% amino acid identity) Shinmyo et al [64] have studied the promoter activity and wound-induction of HRPC and -E types, and of AtPCa and AtPEa Most remarkably, C2, and only C2, ... (2001) Differential activity and structure of highly similar peroxidases Spectroscopic, crystallographic, and enzymatic analyses of lignifying Arabidopsis thaliana peroxidase A2 and horseradish peroxidase ... sequencing and mRNA expression analyses of class III Arabidopsis peroxidase transcripts mostly obtained from the EST projects, and the predicted protein structures derived from all 73 Arabidopsis...
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Báo cáo khoa học: Identification and characterization of 1-Cys peroxiredoxin from Sulfolobus solfataricus and its involvement in the response to oxidative stress pdf
... thioredoxins were found In this study we examined the involvement of the peroxiredoxin Bcp2 in oxidative stress in the hyperthermophilic aerobic archaeon Sulfolobus solfataricus Furthermore, ... clarified in detail and could play a key role in the detoxification processes In this study we examined the role of Bcp2 in order to increase the knowledge of the enzymatic activity involved in the oxidative ... Furthermore, we report the cloning, the expression and the characterization of the recombinant protein rBcp2 in order to shed light on its role in the detoxification process and on its catalytic mechanism...
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Báo cáo khóa học: Localization, purification and properties of a tetrathionate hydrolase from Acidithiobacillus caldus pot
... These data indicated that the fractionation procedure was satisfactory and that the tetrathionate hydrolase is a periplasmic enzyme Purification of the tetrathionate hydrolase from tetrathionate- grown ... properties of tetrathionate hydrolase of A caldus were similar to those of other acidithiobacilli (Table 4) The specific activity of tetrathionate hydrolase from A caldus (2.3 UÆmg protein)1) is comparable ... 2003 Tetrathionate hydrolase of A caldus (Eur J Biochem 271) 273 In A thiooxidans [19] and A ferrooxidans strain Funis 2–1 [20], tetrathionate hydrolase decomposed tetrathionate to thiosulfate and...
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Báo cáo khoa học: Expression and characterization of the protein Rv1399c from Mycobacterium tuberculosis A novel carboxyl esterase structurally related to the HSL family docx
... of parallel b strands associated to an antiparallel strand (b2) and is surrounded by helices (a1 , a2 , a3 , a7 and a8 ) The second domain consists of helices a4 , a5 and a6 all clustered on the top ... indicating that Rv1399c is composed of 22% of a- helices, 25% of b-strand and 39% of random coil The catalytic triad is located at the bottom of a small ˚ ˚ pocket, 20 A length and 10 A wide The pocket ... hydrolases (Fig 3) These enzymes share a functional catalytic triad made of a catalytic nucleophile serine, associated to a proton carrier histidine and a charge relaying aspartic (or glutamic) acid...
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Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc
... (5) and b-elemene (6) (Fig 1) from the essential oil of C wenyujin GC-MS analysis showed that the six isolated compounds except curcumol (2) were the major components in the essential oil of C wenyujin ... total of mg of curdione (1), mg of curcumol (2), 10 mg of germacrone (3), 18 mg of curzerene (4), mg of 1,8-cineole (5) and 17 mg of b-elemene (6) from the essential oil (300 mg) in 2.4 mL of the ... 60–901C) of analytical grade was purchased from Uni-Chem (Guangzhou, China) Acetonitrile and acetone of chromatographic grade were purchased from Merck (Darmstadt, Germany) The essential oil of Curcuma...
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Báo cáo Y học: Cloning and expression of sterol D14-reductase from bovine liver potx
... localization of the enzymes involved in cholesterol biosynthesis and with the puri®cation of the bovine protein from the ER Determination of D14-SR activity To demonstrate that the cloned bovine liver ... presence of signature patterns conserved from yeast D14-SR (ERG24 gene) and sterol D24(28)-reductase (ERG4 gene), as well as the degree of similarity with human LBR and D14-SR from plants and yeast, ... was synthesized according to Fieser & Ourisson [24] Diacylglycerol was prepared from egg yolk as described previously [25] Other reagents were from Gibco-BRL and Sigma Isolation of sterol D14-reductase...
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Báo cáo Y học: Identification and characterization of a new gene from Variovorax paradoxus Iso1 encoding N -acyl-D-amino acid amidohydrolase responsible for D-amino acid production pdf
... towards N- acetyl-D-methionine, N- acetyl-D-alanine, N- acetyl-D-leucine and N- chloroacetyl-D-phenylalanine than towards N- acetyl-D-valine, N- acetyl-D-phenylalanine, N- acetyl-D-tryptophan, N- acetyl-D-tyrosine ... A- 6-D50061: Alcaligenes xylosoxydans ssp xylosoxydans A- 6 N- acylD-glutamate amidohydrolase; Alicaligenes faecalis-DA1: Alcaligenes faecalis DA1 N- acyl D-amino acid amidohydrolase; V paradoxus Iso1: Variovorax ... proteins A- 6-D45918: Alcaligenes xylosoxydans ssp xylosoxydans A- 6 N- acyl -D-amino acid amidohydrolase; A- 6-D45919: Alcaligenes xylosoxydans ssp xylosoxydans A- 6 N- acyl-D-Asparate amidohydrolase; A- 6-D50061:...
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Từ khóa: positive forms and stability of linear timedelay systemsisolation and characterization of vascular endothelial cells from murine heart and lungsafety efficacy and stability of tcm products through constructing network models and network analysisch07 isolation differentiation and characterisation of skeletal stem cells from human bmisolation differentiation and characterisation of skeletal stem cells from human bone marrow in vitro and in vivoonsite extraction and stability of herbicides on spe materialsdetection quantification and purification of halocins peptide antibiotics from haloarchaeal extremophiles2—lightweight aggregate concrete in jointshygric thermal and durability properties of autoclaved aerated concretestability and control of time delay systems pdfthe protection of the marine environment from landbased pollution and activitiessearching and retrieval of information from the world wide webgrowth and development of fetus from fertilization to birthdelay dependent robust stability and stabilization of uncertain neutral systemshow is the wto different from gatt explain the scope and functions of the wtoBáo cáo quy trình mua hàng CT CP Công Nghệ NPVNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namNghiên cứu tổ chức pha chế, đánh giá chất lượng thuốc tiêm truyền trong điều kiện dã ngoạiNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namBiện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọQuản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninhPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhPhát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ longNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Thơ nôm tứ tuyệt trào phúng hồ xuân hươngChuong 2 nhận dạng rui roKiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)BT Tieng anh 6 UNIT 2Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtHIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMMÔN TRUYỀN THÔNG MARKETING TÍCH HỢPTÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲ