heat induced internal sulfate attack def or asr
Báo cáo khoa học: Small heat shock protein Hsp27 prevents heat-induced aggregation of F-actin by forming soluble complexes with denatured actin docx
... mutant imitates phosphorylation of Hsp27 by MAPKAP2 kinase [12], and this phosphorylation is induced by different stimuli and stress conditions [19,23,24] Phosphorylation (or mutations) induces ... Hsp27 and formation of small dimers and tetramers that are much more useful for investigation of interactions with denatured actin than large, variably sized oligomers formed by nonphosphorylated ... mixture are indicated for each point Rh of 16 nm under saturation conditions) is much smaller than the corresponding values for native actin filaments or actin aggregates formed upon thermal denaturation...
- 12
- 319
- 0
Sulfate Attack on Concrete - Chapter 0 docx
... forms of sulfate- related expansion Interaction of sulfates with the C-S-H phase Internal sulfate attack 4.8.1 Internal sulfate attack at ambient temperature 4.8.2 Heat- induced sulfate attack or ... techniques References Sulfate attack 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 Forms of sulfate attack 4.1.1 Manifestations of sulfate attack Source of sulfates in sulfate attack 4.2.1 Internal sources ... reprinted or reproduced or utilised in any form or by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying and recording, or in any information storage or...
- 11
- 639
- 0
Sulfate Attack on Concrete - Chapter 1 ppt
... to sulfate attack in concrete and related material ASTM Designation E 150 – Specification for Portland cement ASTM Designation C 452 – Test method for potential expansion of Portland cement mortars ... be required for low permeability or protection against corrosion or freezing and thawing Includes sea water Pozzolan that has been determined by test or service record to improve sulfate resistance ... community regarding the definition of sulfate attack For some, the term means only the process of possible expansion caused by formation of ettringite from external source of sulfate with the C3A...
- 10
- 426
- 0
Sulfate Attack on Concrete - Chapter 2 pot
... attack Sulfate attack (chemical attack involving sulfates) Ingress of aggressive chemicals into permeable concrete Permeable concrete Improper processing Reaction of internal or external sulfate ... (also portlandite or CH) In the presence of cement of fly ash, slag, or microsilica, the released portlandite may react with the available silica to form additional C-S-H For additional information ... calcium sulfate compounds of primary interest during sulfate attack in concrete are gypsum (formed during sulfate attack; not gypsum added during cement processing), ettringite, monosulfate,...
- 20
- 445
- 0
Sulfate Attack on Concrete - Chapter 3 pot
... Table 3.1 Factors influencing chemical attack on concrete Factors which accelerate or aggravate attack Factors which mitigate or delay attack (1) High porosity due to i high water absorption ii ... It should be noted that field experience shows ASR to often occur in combination with the DEF- type of internal sulfate attack More detailed information on this phenomenon is given in Chapters ... namely so-called delayed ettringite formation (DEF) , improper curing practices are the most probable cause of damage Learn more about this form of internal sulfate attack in a special section of this...
- 12
- 325
- 0
Sulfate Attack on Concrete - Chapter 5 pot
... removal of the contaminated concrete A typical dilation curve for a mortar sample subjected to heat- induced internal sulfate attack (or DEF) is presented in Figure 5.2 As can be seen, the kinetics ... formation) 5.4 CONSEQUENCES OF SULFATE ATTACK ON THE MECHANICAL PROPERTIES OF CONCRETE Reports on the consequences of composition -induced internal sulfate attack clearly indicate that this form ... resulting from external sulfate attack has often complicated the work of researchers In order to work on a relatively homogeneous material (for which degradation was more or less uniform throughout its...
- 19
- 378
- 0
Sulfate Attack on Concrete - Chapter 6 ppt
... PROTECT CONCRETE AGAINST HEAT- INDUCED INTERNAL SULFATE ATTACK Proper mixture design is one way of protecting concrete against degradation by heat- induced internal sulfate attack The materials used ... the protection of concrete against composition -induced internal sulfate attack It is therefore recommended to continuously monitor not only the sulfate content of the ground and shipped cement ... proven history of satisfactory performance The lowest possible w/cm is recommended Under proper conditions, to be defined below, there is no evidence showing that regular Portland or blended...
- 5
- 507
- 1
Sulfate Attack on Concrete - Chapter 7 doc
... performance of concrete subjected to sulfate attack Over the years, some authors have elaborated various kinds of empirical equations to describe, for instance, the relationship between sulfateinduced ... P., Sorensen, P and Klinghoffer, O (1996) “HETEK – Chloride penetration into concrete”, Report No 53, The Road Directorate, Copenhagen, Denmark Ouyang, C (1989) “A damage model for sulfate attack ... extent of deterioration of concretes buried in clay for about forty years An alteration zone of about cm was observed in the samples However, the authors mentioned that sulfate attack was probably...
- 24
- 275
- 0
Sulfate Attack on Concrete - Chapter 8 pot
... SLEEPERS: HEAT- INDUCED INTERNAL SULFATE ATTACK (DEF) OR ASR? As is the case with external sulfate attack, internal sulfate attack, caused by presence or renewed availability of reactive sulfate ... low-temperature sulfate attack is possible in cases such as over-sulfated cement, sulfates in aggregate, etc As discussed earlier, the actual mechanisms of internal sulfate attack or the differences, ... agrees today that (a) heat- induces sulfate attack is more prevalent in the presence of ASR; (b) there is no credible experimental evidence for “ambient-temperature DEF ; and (c) more data are needed...
- 29
- 427
- 1
Sulfate Attack on Concrete - Chapter 9 potx
... of magnesium sulfate, this effect may mask the sulfate attack Also, a combined sulfate acid attack may occur if the substance responsible for the attack is sulfuric acid or ammonium sulfate All ... prescriptive standards, performance standards describe standardized procedures for a direct assessment of the performance of the cement or concrete under sulfate attack For example, test specimens ... (C3A) in the binder This compound or its reaction product, monosulfate (Afm), are responsible for poor performance in a sulfate environment By reacting with sulfate ions, they yield ettringite...
- 10
- 400
- 0
Tài liệu Báo cáo khoa học: Analysis of oxidative events induced by expanded polyglutamine huntingtin exon 1 that are differentially restored by expression of heat shock proteins or treatment with an antioxidant ppt
... vector) or the vector encoding httEx1-25Q-EGFP (25Q EGFP vector), httEx1-72Q-EGFP (72Q EGFP vector) or httEx1-103Q-EGFP (103Q EGFP vector) Cotransfections were performed using the vectors encoding ... pCIneo-EGFP vector (EGFP vector), or the same vector encoding httEx1-25Q-EGFP (25Q EGFP), httEx1-72Q-EGFP (72Q EGFP) or httEx1-103Q-EGFP (103Q EGFP) Cotransfections were performed using the vectors encoding ... transfected with vectors encoding either httEx1-72Q-EGFP (72Q-EGFP) or httEx1-103Q-EGFP (103Q-EGFP) together with pCIneo vector or vectors bearing the Hsp70 ⁄ Hdj-1 (+ Hsp40 + Hsp70) or Hsp27 (+ Hsp27)...
- 18
- 721
- 0
DOD (Do Or Die) vì Brain Attack
... cho N ão quỵ Spirits - Alcohol: rượu nhiều nguy cho bệnh Tiểu đường N ão quỵ Tóm lại, "3 R for Yes + S for N o" giúp bệnh nhân phòng ngừa N ão quỵ, giảm hiểm nguy, biến chứng dư chứng Mong thay, ... định Bác sĩ Reduce body weight: Giảm ký, béo phì dễ bị cao huyết áp, tiểu đường đột quỵ DON'T: S for No: Salt - bớt muối thức ăn; không nên, không 2.5 gram ngày Saturate fat: kiêng mỡ (ngoại trừ...
- 2
- 399
- 0
Tài liệu Báo cáo khoa học: Reversible tetramerization of human TK1 to the high catalytic efficient form is induced by pyrophosphate, in addition to tripolyphosphates, or high enzyme concentration ppt
... dithiothreitol), incubated with or without mm of the respective nucleotide or phosphate compound for h at °C, and stored for at least weeks at )80 °C before use for kinetic and molecular mass analyses ... tetrameric and dimeric forms in Figs and exhibited low or high catalytic efficiency Therefore, the various incubated hTK1 forms from Figs and were analyzed for their kinetic behavior with dThd, and ... form is more open than hTK1 Therefore, at present, it appears that the adenosine group is very loosely bound to hTK1 In the present work, the part of the phosphate donor that is necessary for...
- 10
- 647
- 0
Báo cáo khoa học: Mammalian 105 kDa heat shock family proteins suppress hydrogen peroxide-induced apoptosis through a p38 MAPK-dependent mitochondrial pathway in HeLa cells potx
... Hsp105a or Hsp105b did not significantly affect cell death induced by heat shock, although apoptotic cell death was induced by heat shock treatment (Fig 2) Hsp105a and Hsp105b suppress H2O2 -induced ... mM H2O2 for 0.5 or h (A) or heat shock at 45 °C for h (B) Aliquots (20 lg of protein) of the cell extracts were separated by SDS–PAGE and immunostained using anti-Hsp105, anti-caspase-3 or anti-PARP ... overexpression on the activation of caspase-9 induced by treatment with H2O2 HeLa-tet ⁄ Hsp105 cells were treated with 0.5 mM H2O2 for 0.5 or h (A) or heat shock at 45 °C for h (B) Aliquots (20 lg of protein)...
- 13
- 215
- 0
Báo cáo khoa học: Calcium-induced activation and truncation of promatrix metalloproteinase-9 linked to the core protein of chondroitin sulfate proteoglycans pot
... cetylpyridinium chloride in H2O The precipitates were solubilized by incubation at 37 °C for 30 Vortexing was performed every 10 during the incubation The absorbance of the solubilized color was measured ... addition of these inhibitors to the complex after calcium activation, but prior to electrophoresis gave the same pattern as without inhibitors (data not shown) The CaCl2 induced conversion of the ... other than Cys75 in the prodomain and induced a conformational change prior to binding to the Cys75, followed by autoactivation It was also shown that if 63 or more amino acids in the prodomain of...
- 12
- 381
- 0
External or internal network adapters
... routers transfer data from the Internet to the home network • Allows for network-ready devices such as network printers or network attached storage (NAS) Copyright © 2011 Pearson Education, Inc Publishing ... may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission ... launched from Network and Sharing Center in Control Panel • Before running wizards: 1.Install network adapters on each node 2.For a wired network, plug all the cables into the router, network adapters,...
- 39
- 167
- 0
Báo cáo khoa học: Suppression of heat- and polyglutamine-induced cytotoxicity by nonsteroidal anti-inflammatory drugs potx
... cells to incorporate neutral red into lysozomes For the neutral red uptake assay, C3H10T1/2 cells (7 · 104 cells per well) in 24-well plates were treated with or without a drug or heat- shocked, ... hsps in mammalian cells (A) C3H10T1/2 cells were incubated with or without IND or NDGA at 37 °C for h, or heat- shocked at 42 °C for h (HS) as a positive control Cell extracts from these cells ... were incubated with or without IND or NDGA at 37 °C for h, and then further incubated at 37 °C for h without the drug As a positive control, cells were heat- shocked at 41 °C for h (HS) Cellular...
- 7
- 311
- 0
Báo cáo khoa học: Are UV-induced nonculturable Escherichia coli K-12 cells alive or dead? ppt
... samples were vortexed for min, placed in ice for 15 min, vortexed again for and finally centrifuged at room temperature at 8000 g for 15 Acid extracts were neutralized to pH with NaOH and stored at ... Molecular Cloning: A laboratory manual Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY 14 Kogure, K., Simidu, U & Taga, N (1979) A tentative direct microscopic method for counting living ... twice the mean length of cells before DVC were scored as elongated The proportion of DVC positive cells was corrected by the proportion of elongated cells detected before the DVC method At the same...
- 7
- 318
- 0
báo cáo hóa học: "Transmembrane potential induced on the internal organelle by a time-varying magnetic field: a model study" pdf
... stimulation In this theoretical work, we have provided the first analytical solution for the transmembrane potential in an internal organelle (i.e., mitochondrion) that is induced by a time-varying ... Figure Impact of the presence of internal organelle on ψcell Amplitude (A) and phase (B) of ψcell with the presence of the internal organelle (cycle) or after the organelle was removed from the ... its neighboring cells, without direct physical contact between the two cells [60] This work investigates another important factor that might affect ψcell, i.e., presence of the internal organelle...
- 15
- 413
- 0
Tìm thêm: xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 động cơ điện không đồng bộ một pha thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu