i—a simple game of air hockey
Shaking a box of sand I – a simple lattice model
Ngày tải lên :
01/11/2013, 08:20
... mass of the pile (consisting of grains of unit mass) above grain (i, j) For a rectangular grain, H = − a is the height difference between the initial horizontal and the final vertical state of the ... absent 96 Shaking a box of sand I – a simple lattice model 0.5 5.0 3.0 2.0 φ−φ 00 0.0 1.0 0.5 −0.5 0.2 0.1 −1.0 ln t Fig 7.2 Plot of φ − φ∞ versus ln t, for different values of , indicated on the ... In this section, we examine the behaviour of the packing fraction of the model, as a function of the vibration intensity Let N − and N + be the numbers of vertical and horizontal grains in the...
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![Báo cáo khoa học: Properties and significance of apoFNR as a second form of air-inactivated [4Fe-4S]ÆFNR of Escherichia coli pot](https://media.store123doc.com/images/document/14/rc/at/medium_ata1395562826.jpg)
Báo cáo khoa học: Properties and significance of apoFNR as a second form of air-inactivated [4Fe-4S]ÆFNR of Escherichia coli pot
Ngày tải lên :
23/03/2014, 15:20
... redox state of the cysteinyl residues of apoFNR should be relevant for function and properties of the protein Therefore the redox state of the cysteinyl residues of the various forms of apoFNR – ‘aerobic’ ... FNR inactivation 4265 Disulfides of apoFNR ApoFNR is a product of the reaction of ([4Fe-4S]ÆFNR) with air The in vitro rate for the conversion of [4Fe-4S]ÆFNR to apoFNR (via [2Fe-2S]ÆFNR) is either ... phase of about min, air causes formation of disulfides in FNR which is finished within about Formation of the disulfides has to be accompanied by the loss of the FeS cluster of FNR due to the loss of...
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A SIMPLE EXPLANATION OF MONEY By Isuru Abeysinghe potx
Ngày tải lên :
27/06/2014, 23:20
... Jane would never think of this system of indirect barter Image the situation where there is a much higher variety of goods and services, and hundreds if not thousands of people – all wanting ... valuable as the quantity and quality of the goods and services that are available in exchange for it Having a lot of money, a quantity of money with a lot of zeros behind it, does not intrinsically ... the supply of apples remained constant This is why simply printing more money does not make anybody richer The actual act of making more money has the effect of diluting the value of the money...
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Báo cáo toán học: "Random Cayley graphs are expanders: a simple proof of the Alon–Roichman theorem" potx
Ngày tải lên :
07/08/2014, 08:20
... the expected expansion of the Cayley graph formed from k = O(log |G|) random elements In this article, we give a simple proof of the result based on tail bounds for sums of independent operator-valued ... proof of the Alon-Roichman theorem We shall demonstrate tail bounds on the distribution of λ2 (X(G, S)) and conclude from these a strengthened version (Corollary 3) of the following theorem of ... For a regular graph G, we let λ2 (G) denote the second largest element of the multiset of absolute values of eigenvalues of A(G) As mentioned above, a strong relationship between λ2 (·) and expansion...
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Báo cáo toán học: "A Simple Proof of the Aztec Diamond Theorem" potx
Ngày tải lên :
07/08/2014, 08:22
... Kirkland [2] give a proof by considering a matrix of order n(n + 1) the determinant of which gives an Their proof is reduced to the computation of the determinant of a Hankel matrix of order n that ... the set of domino tilings of the Aztec diamond of order n and the set of n-tuples (π1 , , πn ) of large Schr¨der paths satisfying o conditions (A1) and (A2) Proof: Given a tiling T of ADn , ... center of the right-hand edge of the ith row Namely, each step of the path is from the center of a domino edge (where a domino is regarded as having six edges of unit length) to the center of another...
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A GEOGRAPHICAL ANALYSIS OF AIR HUBS IN SOUTHEAST ASIA
Ngày tải lên :
16/09/2015, 12:42
... examine the operations of selected airlines and airports and the pattern of air services through an analysis of spatial networks, establishing the degree of “hubness” of the airports examined Thirdly, ... and airports and the pattern of air services through an analysis of spatial networks, establishing the degree of “hubness” of the airports examined Finally, this research uses the case study of ... backbone of this thesis Of all the different modes of transport known to man, air transport is arguably one of the most impactful and revolutionary Together with shipping, air transport is one of the...
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Báo cáo y học: "Surgical Treatment of Depressed Scar: A Simple Technique"
Ngày tải lên :
25/10/2012, 11:00
... mind, in the presence of adherent scars, after having infiltrated the whole area with a solution of Lidocaine 0.5% and Epinephrine 1:200,000 very close to one of the two edges of the scar, a small ... the mobility of the recuperated tissue 378 Fig.2: A small incision with an undermining scissor inside it Fig.3: The scar is completely undermined Fig.1: An example of a depressed scar of the abdomen ... below Infact, the use of the stitches in depth is performed in order to prevent that the adhesion can recreate again: this relapse could promote the formation of a layer of reactive collagen in...
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A CFD study of hygro-thermal stresses distribution in tubular-shaped ambient air-breathing PEM micro fuel cell during regular cell operation
Ngày tải lên :
05/09/2013, 14:58
... dehumidification of the membrane may occur, resulting in deterioration of protonic conductivity In the extreme case of complete drying, local burnout of the membrane can result Figure shows profiles for ... pressure Inlet fuel and air temperature Relative humidity of inlet fuel and air Air stoichiometric flow ratio Fuel stoichiometric flow ratio ψ ξc ξa Figure Water content profiles through the MEA ... production in the cathode for the humidification of the membrane; (xi.) the circulating ambient air facilitates the cooling of the fuel cell in lieu of a dedicated heat management system The model...
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Novel design of a compacted micro-structured air-breathing PEM fuel cell as a power source for mobile phones
Ngày tải lên :
05/09/2013, 14:58
... and design of air- breathing PEM fuel cells Litster and Djilali [1] developed a single-phase one-dimensional semi-analytical model of the membrane electrode assembly (MEA) of planar air- breathing ... density, a high fraction of the current is generated at the catalyst layer near the air inlet area, leading to under-utilization of the catalyst at the end of the cell width of the electrode For ... natural convection at the cathode of an air breathing fuel cell Their result confirms the strong effect of self-heating on the water balance within passive air- breathing fuel cells Rajani and...
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The simple economics of easter island a ricardo malthus model of renewable resource use
Ngày tải lên :
13/12/2013, 11:36
... Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited ... without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited ... without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited...
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Tài liệu BONDS OF BLOOD AND HONOUR: A DUAL-STATTED INTRODUCTORY ADVENTURE FOR A GAME OF THRONES RPG WRITTEN BY JASON DURALL pptx
Ngày tải lên :
15/02/2014, 13:20
... Sorcery Studios and Guardians of Order, focuses on the travails of House Flint, another Northern house as they become involved in the affairs of the game of thrones As allies of the Flints through their ... during the Age of the First Men, or so it is said Blood of the First Men runs through the veins of many of Locke House Holdings Oldcastle is located near the terminus of the west fork of the White ... in A Game of Thrones), it can be similarly placed at any juncture in time The events depicted herein take place sometime before the beginning of A Game of Thrones Certain details from the of cial...
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Tài liệu EFFECTS OF AIR POLLUTION FROM A NICKEL-COPPER INDUSTRIAL COMPLEX ON BOREAL FOREST VEGETATION IN THE JOINT RUSSIAN-NORWEGIAN-FINNISH BORDER AREA ppt
Ngày tải lên :
17/02/2014, 22:20
... consists of 3–4 circular subplots One subplot was selected as a sample plot to represent the ground vegetation of the whole cluster The size of the subplot is 300 m2, with a radius of 9.8 m A total of ... emissions of pollutants into the atmosphere in cities and regions of the Russian Federation in 2003] Institute of Ambient Air Protection, St Petersburg [In Russian] Moen A 1999 National Atlas of Norway: ... affected by air pollution (Table and Fig 1) These plots consist of a rectangular 25 m 40 m area for the assessment of tree vitality, forest growth and ground vegetation Analysis of epiphytic...
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Tài liệu Báo cáo Y học: Granule-bound starch synthase I A major enzyme involved in the biogenesis of B-crystallites in starch granules ppt
Ngày tải lên :
22/02/2014, 07:20
... presence of the 69 kDa GBSSI protein (data not shown) Restoration of amylose synthesis is likely to come as a consequence of the random integration of the wild-type STA2 gene in the nuclear genome of ... followed the kinetics of amylose synthesis over a 5-day period of nitrogen starvation and measured the amounts of starch, amylose, the kmax of the starch fractions, the degree of crystallinity and ... in the same set of experiments Because of this high activity, we were able to double the amount of polysaccharide by a 24 h incubation of purified starch granules in the presence of 3.2 mM ADP-glucose...
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Knut Einar Rosendahl (ed.) Social Costs of Air Pollution and Fossil Fuel Use – A Macroeconomic Approach pdf
Ngày tải lên :
06/03/2014, 16:20
... Costs of Air Pollution fieldwork was carried out on surveying the condition and material-mix of various types of buildings One of the conclusions was that the mix of materials for various types of ... analyses of the Norwegian economy.11 Both the choice of industries, commodities and input factors in the model reflect the kind of use of the model Thus, MSG-EE offers interesting studies of e.g ... Studies 99 Social Costs of Air Pollution of Norway, and the rest of the country (mainly rural) In the north the values for sulphur dioxide, ozone, rain, time of wetness and acidity of precipitation...
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The Treatment of Uncertainty in EPA’s Analysis of Air Pollution Rules: A Status Report pot
Ngày tải lên :
06/03/2014, 19:20
... identifies The NRC report also noted that “Because of the lack of consideration of other sources of uncertainty, the results of the primary analysis often appear more certain than they actually are.” ... 2002, 5-6) Air Quality Modeling: Air quality modeling—that is, the effect of emissions on ambient air quality—represents another critical step in estimating the benefits of proposed air pollution ... and Bryan J Hubbell 2009 The influence of location, source, and emissions type in estimates of the human health benefits of reducing a ton of air pollution Air Quality, Atmosphere & Health 2(3):...
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Báo cáo khoa học: A simple in vivo assay for measuring the efficiency of gene length-dependent processes in yeast mRNA biogenesis doc
Ngày tải lên :
07/03/2014, 12:20
... on the GLAM ratios of any major impairment of transcription, regardless of the step of mRNA biogenesis where it occurs To rule out this possibility, we assayed a wide variety of mutants affected ... exclusively impairing the initial steps of transcription influence equally the Assay for gene length-dependent mRNA biogenesis expression of the reporters, independently of the length of their 3¢-UTR ... evaluation of gene expression is the use of a reporter system Available reporter systems allow detection of defects in gene expression, but cannot distinguish between an impairment of the initial...
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Báo cáo khoa học: "A Uniform Treatment of Pragmatic Inferences in Simple and Complex Utterances and Sequences of Utterances" pot
Ngày tải lên :
08/03/2014, 07:20
... computational approach that offers a unified explanation for the cancellability of pragmatic inferences in general, and of no approach that handles cancellations that occur in sequences of utterances It ... the existence, for each type of pragmatic inference, of a set of necessary conditions that must be true in order for that inference to be triggered Once such a set of conditions is met, the corresponding ... and the translation of an utterance or set of utterances uttered(u) The Mgorithm builds the set of all possible interpretations for a given utterance, using a generalization of the semantic tableau...
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Báo cáo Y học: Functional assignment of motifs conserved in b1,3-glycosyltransferases A mutagenesis study of murine UDP-galactose:b-N-acetylglucosamine b1,3-galactosyltransferase-I pptx
Ngày tải lên :
08/03/2014, 16:20
... one of the most versatile amino acids in enzymes as it can be used for substrate binding, be part of the catalytic mechanism and be used for the maintenance of proper conformation The loss of ... Hennet, T & Esko, J.D (2001) Biosynthesis of the linkage region of glycosaminoglycans: cloning and activity of galactosyltransferase II, the sixth member of the b1,3galactosyltransferase family ... basis of the histo-blood group ABO system Nature 345, 229±233 Higuchi, R., Krummel, B & Saiki, R.K (1988) A general method of in vitro preparation and speci®c mutagenesis of DNA fragments: study of...
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The Temporal Pattern of Mortality Responses to Air Pollution: A Multicity Assessment of Mortality Displacement potx
Ngày tải lên :
15/03/2014, 20:20
... association of air pollution at multiple lags simultaneously, providing a direct estimate of Figure Because air pollution is generally correlated, putting a large number of lags of a pollutant ... ill people, air pollution increased the size of the pool over longer time scales by increasing the intensity of illness in general None of these studies provided any direct estimate of what the ... and death out of the risk pool Hence, the direction of the effect of an air pollution episode on the size of the risk pool, and the effect of the risk pool on the death rate over time, may be...
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Development of a simple
Ngày tải lên :
15/03/2014, 23:56
... studies of SPM associated trace metals Firstly, the procedures often use g of dry material, an amount which is often dif®cult to obtain for SPM by ®ltration of natural waters Furthermore, parts of ... requirement of SPM, and is simple and requires a minimal amount of reagents and sample handling and hence has an inherent low risk of sample contamination The occurrence of readsorption of metals ... the competitive action of EDTA, and (b) the slow dissolution of Al from the lattices of clay particles The slow release of Al is most likely responsible for its t95% value of 149 h The calculated...
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