friction adhesion and wear

Tribology of polymer film with hard interlayers on si surface   role of surface energy on adhesion and static friction

Tribology of polymer film with hard interlayers on si surface role of surface energy on adhesion and static friction

... Nanoscratching and nanoindentation analysis 59 4.3.4 Comparison of UHMWPE film with and without DLC interface for friction and wear 61 4.3.5 Effect of UHMWPE thickness on the friction and wear 67 4.3.6 Wear ... chariots Generally, high adhesion and friction tend to increase wear of surfaces by debris particle generation The effective way to reduce adhesion and friction and thus also reduce wear is to provide ... characterizations 104 6.1.4 Friction and wear tests 104 6.1.5 Scratch tests 105 6.2 Results and discussion 105 x Table of Contents 6.2.1 Friction and wear results 107 6.2.3 Study on wear track morphology...

Ngày tải lên: 14/09/2015, 08:45

213 593 0
Functions and variables as symbols

Functions and variables as symbols

... defined elsewhere (like the C standard library) and makes the code executable Athena is MIT's UNIX-based computing environment OCW does not provide access to it Functions and variables as symbols • ... dynamic library are allocated memory and loaded from shared library file 16 Loading shared libraries on demand • In Linux, can load symbols from shared libraries on demand using functions in dlfcn.h ... code) 17 Loading shared libraries on demand • Get the address of a symbol loaded from the library: void ∗ dlsym(void ∗ handle, const char ∗ symbol_name); handle from call to dlopen; returned address...

Ngày tải lên: 25/04/2013, 08:07

46 291 0
Headway - Phrasal verbs and idioms - upper intermediate

Headway - Phrasal verbs and idioms - upper intermediate

... preposition and adverb collocations and idiomatic expressions Students will find staged guidance in understanding the systems, and are given a variety of exercise practice in recognition and production ... and Idioms will find its place in self-access centres, for learners to study on their own: and teachers will welcome the texts, listenings, explanations, and exercises which hare clear aims and ... nouns adjectives past participles, and verbs, without rules or logic Students simply have to learn that interested is followed by in, and good is followed by at and go home has no preposition Multi-word...

Ngày tải lên: 04/09/2013, 14:57

98 961 8
Tài liệu Headway - Phrasal Verbs and Idioms Upper-Intermediate pdf

Tài liệu Headway - Phrasal Verbs and Idioms Upper-Intermediate pdf

... preposition and adverb collocations and idiomatic expressions Students will find staged guidance in understanding the systems, and are given a variety of exercise practice in recognition and production ... and Idioms will find its place in self-access centres, for learners to study on their own: and teachers will welcome the texts, listenings, explanations, and exercises which hare clear aims and ... nouns adjectives past participles, and verbs, without rules or logic Students simply have to learn that interested is followed by in, and good is followed by at and go home has no preposition Multi-word...

Ngày tải lên: 24/01/2014, 08:20

98 1,1K 15
Báo cáo khoa học: Halogenated benzimidazoles and benzotriazoles as inhibitors of the NTPase/helicase activities of hepatitis C and related viruses ppt

Báo cáo khoa học: Halogenated benzimidazoles and benzotriazoles as inhibitors of the NTPase/helicase activities of hepatitis C and related viruses ppt

... released strand and to the nonunwound substrate were cut out and 32 P radioactivity counted Alternatively, the films were scanned and the radioactivity associated with the released strand and with ... as described by Hames and Rickwood [33] Kinetic parameters were determined by nonlinear-regression analysis using ENZFITTER (BioSoft) and SIGMA PLOT (Jandel Corp.) ATPase and helicase assays Fig ... properties of TBBT, and a number of related benzotriazoles and benzimidazoles, at the NTPase/helicase sites of HCV and the related viruses Japanese encephalitis virus (JEV) and WNV, as well as...

Ngày tải lên: 08/03/2014, 02:20

9 659 0
optimisation of artemia biomass production in salt ponds in vietnam and use as feed ingredient in local aquaculture

optimisation of artemia biomass production in salt ponds in vietnam and use as feed ingredient in local aquaculture

... 1992; Sodha and Chandra 1994; Chua and Chou, 2003) Moreover, the construction details and operational principles of different solar dryers have been reviewed by Ekechukwu and Norton (1999) and Farkas ... brackish and fresh waters, all of which are widely available throughout much of the country There are 3,260 km of coastline, 12 lagoons, straits and bays, 112 estuaries, canals and thousands of big and ... instance, Philippines (De Los Santos et al., 1980), Thailand (Tarnchalanukit and Wongrat, 1987), Vietnam (Quynh and Lam, 1987; Brands et al., 1995) and other countries such as India, Sri Lanka, Iran...

Ngày tải lên: 13/03/2014, 18:58

296 663 0
Báo cáo khoa học: PCSK9 is phosphorylated by a Golgi casein kinase-like kinase ex vivo and circulates as a phosphoprotein in humans doc

Báo cáo khoa học: PCSK9 is phosphorylated by a Golgi casein kinase-like kinase ex vivo and circulates as a phosphoprotein in humans doc

... followed by phosphorimaging (Fig 5) Lanes and and and represent immunoprecipitated PCSK9 from media and total cell lysates of HepG2, respectively PCSK9 and its co-immunoprecipitating propeptide ... insulin growth factor-binding proteins and osteopontin [25], and is unlike the complete modification reported for phosphoproteins secreted from mammary and salivary glands [25] Interestingly, MS analyses ... in the absence and presence of SAP (Fig 6B, lanes and 2, respectively) MS analyses of immunoprecipitates using preimmune sera (Fig 6C) and immune 3486 sera against PCSK9 (Fig 6D) and human plasma...

Ngày tải lên: 16/03/2014, 06:20

14 454 0
Investigation of au and in as solvents for the growth of silicon nanowires on si(1 1 1)

Investigation of au and in as solvents for the growth of silicon nanowires on si(1 1 1)

... diffusion coefficients of gold and indium on silicon, the solubility of substrate atoms in the two metals, the surface tension of gold and indium and the surface energy of silicon and silicon oxide Fig ... different behavior of gold and indium on Si(1 1) has been described and analyzed An explanation based on differences of solubilities of surface atoms in gold and indium and on the different surface ... temperatures around 550 1C for indium and gold on a clean Si(1 1) surface are 0.30 and 0.12 m2/s, respectively [9,10] They are of the same order of magnitude and thus cannot account for our very...

Ngày tải lên: 16/03/2014, 15:17

6 566 0
Báo cáo khoa học: Molecular characterization of recombinant mouse adenosine kinase and evaluation as a target for protein phosphorylation potx

Báo cáo khoa học: Molecular characterization of recombinant mouse adenosine kinase and evaluation as a target for protein phosphorylation potx

... previously described [11] PKG and cGMP were purchased from Promega; MAPK, CaMKII, and calmodulin from Upstate; and CK1, CK2, and Cdk1 from New England Biolabs Cdk5 and p25 were coexpressed in insect ... these and other sites using a standard kit (Stratagene) and following the manufacturer’s recommendations for mutagenic primer design Mutations were confirmed by DNA sequencing along both strands, ... acetate, and 0.2 mgÆmL)1 bovine serum albumin; PKG reactions in 40 mM Tris/HCl, pH 7.4, 20 mM magnesium acetate, and lM cGMP; MAPK reactions in 50 mM Tris/HCl, pH 7.4, 10 mM MgCl2, and 20 mM EGTA; and...

Ngày tải lên: 16/03/2014, 18:20

9 497 0
Báo cáo khoa học: Coenzyme A affects firefly luciferase luminescence because it acts as a substrate and not as an allosteric effector pot

Báo cáo khoa học: Coenzyme A affects firefly luciferase luminescence because it acts as a substrate and not as an allosteric effector pot

... between L-CoA and CoA, these compounds were added (to nal concentrations of 20 and 100 lm, respectively) into assay tubes that contained Hepes pH 8.2, MgCl2 and LUC (60 nm) and after 30 s, and 10 of ... (L-dephospho-CoA) and FEBS Journal 272 (2005) 52065216 ê 2005 FEBS H Fraga et al Fig Effect of the concentration of CoA and dephospho-CoA on the velocity of formation of L-CoA and L-dephospho-CoA (A) and on ... dephospho-CoA and acetylCoA In this work, we have investigated the inhibitory effects of chemically synthesized L-AMP [17] and dehydroluciferyl-CoA (L-CoA) [18] on light production and the role of CoA and...

Ngày tải lên: 16/03/2014, 23:20

11 475 0
Báo cáo Y học: Synthesis of phosphoenol pyruvate (PEP) analogues and evaluation as inhibitors of PEP-utilizing enzymes pot

Báo cáo Y học: Synthesis of phosphoenol pyruvate (PEP) analogues and evaluation as inhibitors of PEP-utilizing enzymes pot

... analogues 1c and 1d The last two isomers and the chlorinated analogues 2g and 3c are candidates for the irreversible inactivation of PEP-utilizing enzymes MATERIALS AND METHODS Enzyme I, and the rest ... 1.1) (d, 1.1) (dq, 7.4, 2.2) Scheme PEP carboxylase, and enolase Compounds 2a–e, 2g–i and 3c are new, and for that reason their synthesis and characterization is also reported, as well as an ... between 4f and trimethyl phosphite Therefore 2b and 2d, as well as 2i were prepared by alkaline hydrolysis of the esters 2a, 2c and h, respectively However, 2a was stable to hydrolysis at pH 12 and...

Ngày tải lên: 18/03/2014, 01:20

11 643 0
composite of tio2 nanowires and nafion as humidity sensor material

composite of tio2 nanowires and nafion as humidity sensor material

... stability and optical transparency of the composite films The IR spectrum of the hydrated titanium dioxide [h-TiO2 ] shows a large broad band between 3250 and 3490 cm−1 and narrow bands at 1641 and ... Sensors and Actuators B 115 (2006) 198–204 where Msat and Mdry were the flow rates of saturated air and dry air, and ‘f’ was the coefficient of this system which was dependent on temperature and flow ... spectrum The peaks at 800 and 969 cm−1 are due to Si–O–Si and Si–OH, respectively, also from TEOS In addition there were also less significant IR peaks at 509, 611, 755 and 805 cm−1 and a prominent peak...

Ngày tải lên: 19/03/2014, 16:47

7 562 0
Báo cáo khoa học: "Parsing and Generation as Datalog Queries" doc

Báo cáo khoa học: "Parsing and Generation as Datalog Queries" doc

... the left, λx.λy.M is abbreviated to λxy.M, and α → β → γ stands for α → (β → γ) We refer the reader to Hindley, 1997 or Sørensen and Urzyczyn, 2006 for standard notions used in simply typed λ-calculus ... Det → (e→t)→(e→t)→t, N → e→t}) A rule that has A on the left-hand side and B1 , , Bn as right-hand side nonterminals has its left-hand side annotated with a well-formed λ-term M that has type ... Institute of Science and Technology Beeri, Catriel and Raghu Ramakrishnan 1991 On the power of magic Journal of Logic Programming 10, 255–299 Engelfriet, J and E M Schmidt 1977 IO and OI, part I The...

Ngày tải lên: 23/03/2014, 18:20

8 305 1
Báo cáo khoa học: A novel plant protein disulfide isomerase family homologous to animal P5 – molecular cloning and characterization as a functional protein for folding of soybean seed-storage proteins docx

Báo cáo khoa học: A novel plant protein disulfide isomerase family homologous to animal P5 – molecular cloning and characterization as a functional protein for folding of soybean seed-storage proteins docx

... are composed of the two major globulins glycinin and b-conglycinin They are folded and assembled into trimers in the ER, and then transported and deposited in the protein storage vacuoles [13] ... GmPDIM by western immunoblot (Fig 2A, lane 1), and also to two bands from cotyledon cell extract of 50 and 52 kDa (Fig 2A, lane 2) The intensity of these bands decreased when antiGmPDIM serum was pre-incubated ... analyzed by western immunoblot with anti-GmPDIM serum (lanes and 2), anti-BiP serum (lanes and 4) and anti-calreticulin serum (lanes and 6) anti-GmPDIM serum by western immunoblot (Fig 6A) The...

Ngày tải lên: 30/03/2014, 04:20

12 348 0
Báo cáo khoa học: Modular metabolic control analysis of large responses The general case for two modules and one linking intermediate docx

Báo cáo khoa học: Modular metabolic control analysis of large responses The general case for two modules and one linking intermediate docx

... inside the supply module and measure the changes in the intermediate and the demand rate and, second, to perturb the demand module and measure the changes in the intermediate and the supply rate This ... 2B) J S Next, we represent Cv1 and Cv1 as a function of r1, J S and Cv2 and Cv2 as a function of r2 in two parametric J J S S plots: Cv1 and Cv2 in Fig 3A and Cv1 and Cv2 in Fig 3B These are useful ... S, and measure the rates of the supply and demand modules, v1 and v2 Applying fitting procedures to the table of experimental values v1, v2 and S, continuous functions, represented by v1(S) and...

Ngày tải lên: 30/03/2014, 10:20

14 312 0
Báo cáo khoa học: RNA helicase A interacts with nuclear factor jB p65 and functions as a transcriptional coactivator pot

Báo cáo khoa học: RNA helicase A interacts with nuclear factor jB p65 and functions as a transcriptional coactivator pot

... 48 h after transfection, and immunoprecipitated with 10 lL of anti-Flag M2 Affinity Gel, and the resulting precipitates were disrupted and immunoblotted with anti-p65 Ig and anti-Flag Ig (D, upper ... Leu, and His, and containing 25 mM 3-aminotriazole Plasmids were rescued from clones that were positive for b-galactosidase activity and identified by nucleotide sequencing cDNA sequences and their ... medium lacking His, Leu and Trp, and containing 25 mM 3-aminotriazole (Fig 1B) pGBT-p65(1–286), pGBT-p65(286–442), and Table Yeast two–hybrid interaction assays between p65 and RHA Yeast Y190 cells...

Ngày tải lên: 30/03/2014, 15:20

11 485 0
2005 Health and Food Technology Intermediate 2 Finalised Marking Instructions doc

2005 Health and Food Technology Intermediate 2 Finalised Marking Instructions doc

... Paper for the Year 2005 Content Health and Food Technology Lifestyle and Consumer Technology Fashion and Textile Technology Analysis of question content and question choice Question Content (Brief ... for the boy as he is active Protein is essential for the repair of body cells and the five-year-old may suffer cuts and grazes when playing Highest in carbohydrate will provide energy for an active ... pastry Course skills: Recall and use of knowledge x mark for each correct explanation Mark allocation: marks (i) Too much sugar in a sauce • (Gelling will not take place) and a thin, runny mixture...

Ngày tải lên: 31/03/2014, 22:20

22 276 0
Thrombolysis and PCI as major treatment options_part1 doc

Thrombolysis and PCI as major treatment options_part1 doc

... Journal, and the New England Journal of Medicine, and is a co-editor of several French reviews This is trial version www.adultpdf.com Kurt Huber is Professor of Internal Medicine and Cardiology, and ... medical editor and writer, with extensive experience in the conception, writing, proof-reading and editing of medical articles and books for print and online Director of medical editing and writing, ... medical journals including the European Heart Journal, Thrombosis and Haemostasis, and the Journal of Thrombosis and Thrombolysis, and serves as main editor of the Austrian Journal of Cardiology...

Ngày tải lên: 18/06/2014, 12:20

12 269 0
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