Mary Anne White

Dalhousie University

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Michel B. Johnson

Dalhousie University

Bojan A. Marinković

Pontifical Catholic University of Rio de Janeiro

Dominic Groulx

Dalhousie University

Samer Kahwaji

Dalhousie University

Carl P. Romao

University of Tübingen

Bi‐Zeng Zhan

Lawrence Berkeley National Laboratory

Michael B. Jakubinek

National Research Council Canada

Catherine A. Whitman

Dalhousie University

Louis Desgrosseilliers

Dalhousie University

John A. Noël

Dalhousie University

Cooperative Institutions

Dalhousie University

117

National Research Council Canada

Pontifical Catholic University of Rio de Janeiro

Northwestern University

McMaster University

University of California, Berkeley

University College Cork

Osaka University

Oak Ridge National Laboratory

Lawrence Berkeley National Laboratory

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A comprehensive study of properties of paraffin phase change materials for solar thermal energy storage and thermal management applications

Energy (2018)

Samer Kahwaji Michel B. Johnson Ali C. Kheirabadi Dominic Groulx Mary Anne White

Paraffin wax

Phase-change material

Thermal Stability

10.1016/j.energy.2018.08.068

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Citations (159)

Investigation of factors affecting crystallization of cyclopentane clathrate hydrate

The Journal of Chemical Physics (2008)

Catherine A. Whitman Roman Mysyk Mary Anne White

We report the results of systematic investigations of the influence of thermal history and other factors on crystallization of a model clathrate hydrate (cyclopentane hydrate) studied as water-in-oil and oil-in-water emulsions to remove the nucleation influence of substrates other than ice and hydrates. Hydrate and ice seem to form simultaneously under the conditions of these experiments, with ice forming preferentially. Thermal treatment, melting the ice, and leaving only the hydrate, promotes further hydrate formation. Not all the hydrate formed can be accounted for by the recrystallization of water freed by melting ice.

Clathrate hydrate

Cyclopentanes

Recrystallization (geology)

Water of crystallization

Ice Ih

10.1063/1.3005379

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Citations (16)

SPECIFIC HEAT OF MTa₂O₆ (M = Co, Ni, Fe, Mg) EVIDENCE FOR LOW DIMENSIONAL MAGNETISM

Le Journal de Physique Colloques (1988)

Reinhard K. Kremer J. E. Greedan E. Gmelin Wei Dai Mary Anne White

We report the heat capacities of MTa2O6 (M = Co,Ni,Fe,Mg). Antiferromagnetic ordering is observed at 6.67 K (Co), 10.55 K (Ni) and 8.1 K (Fe). Short range correlations above Tc contribute substantially to the heat capacity of the magnetic compounds. The magnetic part in the heat capacity of the Co and Ni compound can be described by a very anisotropic square planar S = 1/2 Ising model. Magnetic ordering in FeTa2O6 takes place in a S = 1 triplet ground state. The short range order contributions are compared to the heat capatities of S = 1 afm chains.

Magnetism

Specific heat

10.1051/jphyscol:19888688

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Citations (18)

Polymorphism in bicyclo[3.3.1]nonan-9-one: A molecular solid that can exist in both its ordered and its disordered phases at room temperature

Journal of Solid State Chemistry (1991)

Mary Anne White Allyson L. Perrott

Thermal hysteresis

10.1016/0022-4596(91)90175-h

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Citations (3)

A novel, organic-additive-free synthesis of nanometer-sized NaX crystals

Chemical Communications (2001)

Bi‐Zeng Zhan Mary Anne White Katherine N. Robertson T. Stanley Cameron Michael A. Gharghouri

Ultra-fine NaX zeolite crystals of dimensions ca. 20–100 nm have been synthesized with a novel, efficient, organic-additive-free hydrothermal approach.

Nanometre

Organic Synthesis

10.1039/b102733f

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Citations (45)

Thermal properties of the pyrochlore, Y2Ti2O7

Journal of Solid State Chemistry (2009)

Michel B. Johnson David D. James Alex Bourque H. A. Dabkowska B. D. Gaulin

Debye model

Atmospheric temperature range

10.1016/j.jssc.2008.12.027

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Citations (54)

Crystallinity of Hybrid Nanozeolite-Poly(ethylene oxide) Composites

Journal of Composite Materials (2005)

Catherine Kennedy Bi‐Zeng Zhan Mary Anne White

New materials that contain both organic and inorganic components have potentially new chemical and physical properties that can even lie outside those bracketed by their constituents. A series of hybrid polymer-inorganic nanocomposite materials was synthesized using various poly(ethylene oxide), LiCF 3 SO 3 , and zeolite mixtures. The series included mixtures of SiO 2 , PEO-LiX, and PEO-GLYLiX, of varying concentrations (where GLY 1 /4 3-glycidoxypropyltrimethoxysi-lane, LiX is lithiated faujasite zeolite, and the Li + source was LiCF 3 SO 3 ; for all the LiCF 3 SO 3 -containing samples, the PEO oxygen: lithium mole ratio was 12: 1). Their degrees of crystallinity and glass transition temperatures relative to pure semicrystal-line PEO were found to be reduced on the addition of the inorganic components.

Faujasite

Hybrid material

10.1177/0021998305046439

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Citations (3)

Thermographic validation of a novel, laminate body, analytical heat conduction model

Heat and Mass Transfer (2014)

Louis Desgrosseilliers Dominic Groulx Mary Anne White

Fin

10.1007/s00231-014-1295-3

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Citations (2)

Rates of teacher verbal approval and disapproval to higher and lower ability classes.

Journal of Educational Psychology (1975)

Marc S. Heller Mary Anne White

To determine whether teachers' rates of verbal approval and disapproval vary with the ability level of a class, 5 social studies teachers and 5 mathematics teachers were observed teaching both higher ability and lower ability classes in an inner-city junior high school. Teachers emitted more disapprovals in lower ability classes than in higher ability classes, and the extra disapprovals in the former were predominantly of the managerial type (aimed at controlling social behavior). Also, in general, teachers almost never praised pupils for behaving well socially, but they did approve of instructional behaviors more frequently than they disapproved of these behaviors. Both teacher and pupil behaviors are discussed in terms of social learning theory. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

Social approval

10.1037/0022-0663.67.6.796

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Citations (56)

A linear entropy relationship for fusion of n-alkyl chains

Thermochimica Acta (1985)

Michiel J. M. Van Oort Mary Anne White

Entropy of fusion

Homologous series

10.1016/0040-6031(85)87027-1

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Citations (18)