Browsing Waterloo Research by Issue Date
Now showing items 41-60 of 2462
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Self-Assembly of Amphiphilic Nanoparticle-Coil “Tadpole” Macromolecules
(American Chemical Society, 2004)There has been considerable fascination with the self-assembling behavior of amphiphilic chainlike molecules that range from short-chain surfactants to high molecular weight block copolymers. The self-assembly of simple ... -
Heat Transfer Analysis of a Between-Panes Venetian Blind Using Effective Longwave Radiative Properties
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2004)Center-glass thermal analysis programs based on one-dimensional models have proved to be exceptionally useful. Recently efforts have been made to extend the analysis to include venetian blinds. It is convenient to model ... -
Methods for Calculating the Effective Longwave Radiative Properties of a Venetian Blind Layer
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2004)Window solar gain can strongly influence building energy consumption, peak loads, and comfort. Shading devices are routinely used to control solar gain. The use of venetian blinds is particularly common. There is a strong ... -
The Erdős Theorem and the Halberstam Theorem in function fields
(Institute of Mathematics of the Polish Academy of Sciences, 2004)Introduction. For n ∈ N, define ω(n) to be the number of distinct prime divisors of n. The Tur´an Theorem [9] concerns the second moment of ω(n) and it implies a result of Hardy and Ramanujan [4] that the normal order of ... -
Elastic moduli of multiblock copolymers in the lamellar phase
(AIP Publishing, 2004-02-22)We study the linear elastic response of multiblock copolymer melts in the lamellar phase, where the molecules are composed of tethered symmetric AB diblock copolymers. We use a self-consistent field theory method, and ... -
Effect of water table drawdown on northern peatland methane dynamics: Implications for climate change
(Wiley, 2004-10-07)As natural sources of methane (CH4), peatlands play an important role in the global carbon cycle. Climate models predict that evapotranspiration will increase under a 2 x CO2 scenario due to increased temperatures leading ... -
A Generalization of the Erdös-Kac Theorem and its Applications
(Cambridge University Press, 2004-12-01)We axiomatize the main properties of the classical Erdös-Kac Theorem in order to apply it to a general context. We provide applications in the cases of number fields, function fields, and geometrically irreducible varieties ... -
A Generalization of the Turán Theorem and Its Applications
(Cambridge University Press, 2004-12-01)We axiomatize the main properties of the classical Turan Theorem in order to apply it to a general context. We provide applications in the cases of number fields, function fields, and geometrically irreducible varieties ... -
Prime Divisors of the Number of Rational Points on Elliptic Curves with Complex Multiplication
(Wiley, 2005)Let E/Q be an elliptic curve. For a prime p of good reduction, let E(Fp) be the set of rational points defined over the finite field Fp. Denote by ω(#E(Fp)) the number of distinct prime divisors of #E(Fp). For an elliptic ... -
Methods for Calculating the Effective Solar-Optical Properties of a Venetian Blind Layer
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2005)Window solar gain can strongly influence building energy consumption, peak loads, and comfort. Shading devices are routinely used to control solar gain. The use of venetian blinds is particularly common. There is a strong ... -
Dynamics of biogenic gas bubbles in peat and their effects on peatland biogeochemistry
(American Geophysical Union, Wiley, 2005-01-18)Production and emission of peat gas has attracted great interest because substantial amounts of methane (CH4) are emitted to the atmosphere from peat soils. Many studies indicate supersaturation of CH4 in peat water, ... -
Sieve methods in combinatorics
(Elsevier, 2005-07)We develop the Turán sieve and a ‘simple sieve’ in the context of bipartite graphs and apply them to various problems in combinatorics. More precisely, we provide applications in the cases of characters of abelian groups, ... -
A prime analogue of the Erdös-Pomerance conjecture for elliptic curves
(European Mathematical Society, 2005-12-31)Let E/Q be an elliptic curve of rank ≥ 1 and b ∈ E(Q) a rational point of infinite order. For a prime p of good reduction, let gb(p) be the order of the cyclic group generated by the reduction b of b modulo p. We denote ... -
Solar Absorption by Each Element in a Glazing/Shading Layer Array
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2006)Window solar gain can strongly influence building energy consumption and peak cooling load. Shading devices such as venetian blinds, roller blinds, and drapes are routinely used to control solar gain. There is a strong ... -
Simplified Solar Optical Calculations For Windows With Venetian Blinds
(2006)Solar gain through a window represents the most variable heat gain imposed on an indoor space. It is also likely to represent the largest heat gain of the indoor space. Shading devices like venetian blinds roller blinds ... -
Thermal Resistance of a Window with an Enclosed Venetian Blind: Guarded Heater Plate Measurements
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2006)Window solar gain is known to have a strong influence on building energy consumption and peak cooling load. Venetian blinds are routinely used to control solar gain. Software based on one-dimensional models is available ... -
Calculating Center-Glass Performance Indices of Windows with a Diathermanous Layer
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2006)The fenestration chapter of the 2005 ASHRAE Hand-book—Fundamentals (ASHRAE 2005) has long included methods for determining the U-factor and solar heat gain coef-ficient (SHGC), or window performance indices, using the ... -
Hierarchical RLE level set: A compact and versatile deformable surface representation
(Association for Computing Machinery, 2006-01)This article introduces the Hierarchical Run-Length Encoded (H-RLE) Level Set data structure. This novel data structure combines the best features of the DT-Grid (of Nielsen and Museth [2004]) and the RLE Sparse Level Set ... -
A weighted Turán sieve method
(Elsevier, 2006-01)We develop a weighted Turán sieve method and applied it to study the number of distinct prime divisors of f (p) where p is a prime and f (x) a polynomial with integer coefficients. -
Predicting nonpolymeric materials structure with real-space self-consistent field theory
(APS publishing, 2006-02-17)Polymer self-consistent field theory of the Edwards-Helfand kind is the state-of-the-art method for predicting the morphologies of block copolymer materials. The methodology of block copolymer self-consistent field theory ...