Browsing Waterloo Research by Issue Date
Now showing items 21-40 of 2317
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A Simplified Numerical Method for Assessing the Condensation Resistance of Windows
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 1998)Methods have been established for calculating heat transfer in windows whereby a one-dimensional analysis is used for the center-glass area and a two-dimensional numerical calculation is used to model conduction in the ... -
Calculating Center-Glass Performance Indices of Windows
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 1998)Building envelope performance is strongly influenced by solar gain and heat transfer through windows. The majority of this energy gain or loss passes through the center-glass area of the glazing system. Various methods ... -
Magnetoconductance due to variable-range hopping in quasi-two-dimensional systems: Application to PrBa2Cu3O7-delta
(American Physical Society, 1998-01)In this paper, we have developed a theory of magnetoconductance (magnetoresistance) due to variable-range hopping for quasi-two-dimensional systems. We have included the effect of electric fields on the calculation of the ... -
Computer Simulation of Window Condensation Potential
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 1998-12)Condensation on windows creates obscured view, can cause building damage, and may lead to mold growth and poor indoor air quality. The Canadian Standards Association (CSA) has developed new procedures to evaluate window ... -
Calculating the Solar Heat Gain of Window Frames
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 1999)It is not practical to measure the solar heat gain of a window frame. It is more practical to do so by calculation. Typically, the frame solar heat gain is a small component of the total or is small in absolute terms so ... -
Small-polaron variable-range hopping in quasi-two-dimensional materials: application to PrBa2Cu3-xGax07-y
(Taylor & Francis, 1999-01)We have developed a theory for variable-rangehopping (VRH) due to small polarons in quasi-two-dimensionalsystems at high temperatures.We included the effects of temperature, electric fields, magnetic fields and scattering ... -
Witnessing-condition Heterogeneity and Witnesses’ Versus Investigators’ Confidence in the Accuracy of Witnesses’ Identification Decisions
(APA, 2000-06)Undergraduate participants were tested in 144 pairs, with one member of each pair randomly assigned to a “witness” role and the other to an “:investigator” role. Each witness viewed a target person on video under good or ... -
A Simplified Analysis of Radiant Heat Loss Through Projecting Fenestration Products
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2001)Current window analysis algorithms can deal with many features, including low-e coatings and substitute fill gases. These methods were developed for products with planar glazings. Results can be generated for projecting ... -
Predicting the Mesophases of Copolymer-Nanoparticle Composites
(American Association for the Advancement of Science, 2001)The interactions between mesophase-forming copolymers and nanoscopic par- ticles can lead to highly organized hybrid materials. The morphology of such composites depends not only on the characteristics of the copolymers, ... -
Block Copolymer-Directed Assembly of Nanoparticles: Forming Mesoscopically Ordered Hybrid Materials
(American Chemical Society, 2002)Mixtures of diblock copolymers and nanoscopic spherical particles can yield well-ordered hybrid materials, which can be used for separation processes, catalysis, and optoelectronic applications. Predicting the morphologies ... -
Effect of Nanoscopic Particles on the Mesophase Structure of Diblock Copolymers
(American Chemical Society, 2002)Introduction. The fabrication of novel biomimetic photonic and electronic materials requires the manipulation of both organic and inorganic materials at the nanometer length scale. One possible means of achieving this level ... -
Entropically Driven Formation of Hierarchically Ordered Nanocomposites
(American Physical Society, 2002)Using theoretical models, we undertake the first investigation into the rich behavior that emerges when binary particle mixtures are blended with microphase-separating copolymers. We isolate an example of coupled self-assembly ... -
Binary hard sphere mixtures in block copolymer melts
(American Physical Society, 2002)We perform a self-consistent-field/density-functional-theory hybrid analysis for a system of diblock copoly- mers mixed with polydisperse, hard, spherical particles of various chemical species. We apply this theory to study ... -
A Comparison of Calculated and Measured Indoor-Side Window Temperature Profiles
(American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2003)Computer-generated surface temperature profiles are presented for the indoor side, vertical centerline of two windows and a calibration transfer standard (CTS). These specific configurations were chosen because they match ... -
Self-assembly of a binary mixture of particles and diblock copolymers
(Royal Society of Chemistry, 2003)Using theoretical models, we undertake the first investigation into the synergy and rich phase behavior that emerges when binary particle mixtures are blended with microphase- separating copolymers. We isolate an example ... -
Well-Posedness of Boundary Control Systems
(Society for Industrial and Applied Mathematics, 2003-01-01)Continuity of the input/output map for boundary control systems is shown through the system transfer function. Our approach transforms the question of continuity of the input/output map of a boundary control system to ... -
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 ... -
Ordering mechanisms in triblock copolymers
(American Physical Society, 2004)The ordering mechanisms for an ABC triblock copolymer system are studied using self-consistent field theory. We find a two-phase mechanism, similar to what has been suggested experimentally two-step mecha- nism. Analysis ... -
Self-Assembly of Amphiphilic Nanoparticle-Coil “Tadpole” Macromolecules
(American Chemical Society, 2004)None.