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Articles 23911 - 23940 of 25075
Full-Text Articles in Entire DC Network
Hong Kong's Basic Law: The Path To 1997, Paved With Pitfalls, Anna M. Han
Hong Kong's Basic Law: The Path To 1997, Paved With Pitfalls, Anna M. Han
Faculty Publications
No abstract provided.
Ethical Integrity In The Legal Profession: Survey Results Regarding Law Students' Veracity On Resumes And Recommendations For Enhancing Legal Ethics Outside The Classroom, Nancy A. Wright
Faculty Publications
No abstract provided.
Regulating Broadband Communication Networks, Allen S. Hammond Iv
Regulating Broadband Communication Networks, Allen S. Hammond Iv
Faculty Publications
No abstract provided.
Victims' Rights In California, Gerald F. Uelmen
Victims' Rights In California, Gerald F. Uelmen
Faculty Publications
No abstract provided.
Id., Gerald F. Uelmen
The Influence Of Content Development On The Effectiveness Of Instruction, Judith E. Rink, Karen E. French, Peter H. Werner, Susan Lynn, Amy Mays
The Influence Of Content Development On The Effectiveness Of Instruction, Judith E. Rink, Karen E. French, Peter H. Werner, Susan Lynn, Amy Mays
Faculty Publications
The purpose of this study was to investigate the effect on student learning of different ways of structuring student practice of complex motor skills. Previous research indicated that students who practiced the volleyball set and serve with a four-step progression learned more than students who practiced only the final test for the same number of practice trials; the effect of motivation and practice focused on specific learning cues was unclear. The present study investigated the specific role of progression, refinement, and motivation in learning the volleyball set and serve. Ninth-grade students were randomly assigned to one of five groups: (a) …
Thermal Mathematical Modeling Of A Multicell Common Pressure Vessel Nickel-Hydrogen Battery, Junbom Kim, T. V. Nguyen, Ralph E. White
Thermal Mathematical Modeling Of A Multicell Common Pressure Vessel Nickel-Hydrogen Battery, Junbom Kim, T. V. Nguyen, Ralph E. White
Faculty Publications
A two-dimensional and time-dependent thermal model of a multicell common pressure vessel (CPV) nickel-hydrogen battery was developed. A finite element solver called PDE/Protran was used to solve this model. The model was used to investigate the effects of various design parameters on the temperature profile within the cell. The results were used to help find a design that will yield an acceptable temperature gradient inside a multicell CPV nickel-hydrogen battery. Steady-state and unsteady-state cases with a constant heat generation rate and a time-dependent heat generation rate were solved.
Comparison Of Heat-Fin Materials And Design Of A Common-Pressure-Vessel Nickel-Hydrogen Battery, Junbom Kim, Ralph E. White
Comparison Of Heat-Fin Materials And Design Of A Common-Pressure-Vessel Nickel-Hydrogen Battery, Junbom Kim, Ralph E. White
Faculty Publications
A two-dimensional, axisymmetric, and time-dependent thermal model was developed to study the temperature behavior of the cylindrically shaped common-pressure-vessel nickel-hydrogen cell. A differential-energy-balance equation was used as the governing equation. A finite-element software package called PDE/Protran was used to solve this model. Different materials such as copper, copper beryllium, silver, and sterling silver were compared as heat-fin materials. The heat-fin geometry (thickness and height) and spacing were tested to find a design that yielded an acceptable temperature gradient inside a nickel-hydrogen cell. Pulse heat-generation rates were tested and correlated with the time-dependent heat-generation cases.
Mathematical Modeling Of A Primary Zinc/Air Battery, Z. Mao, Ralph E. White
Mathematical Modeling Of A Primary Zinc/Air Battery, Z. Mao, Ralph E. White
Faculty Publications
The mathematical model developed by Sunu and Bennion has been extended to include the separator, precipitation of both solid ZnO and K2Zn(OH)4, and the air electrode, and has been used to investigate the behavior of a primary Zn-Air battery with respect to battery design features. Predictions obtained from the model indicate that anode material utilizationis predominantly limited by depletion of the concentration of hydroxide ions. The effect of electrode thickness on anode material utilization is insignificant, whereas material loading per unit volume has a great effect on anode material utilization; a higher loading lowers both the …
Child Abuse Reporting Laws And Attorney-Client Confidences: The Reality And The Specter Of Lawyer As Informant, Robert P. Mosteller
Child Abuse Reporting Laws And Attorney-Client Confidences: The Reality And The Specter Of Lawyer As Informant, Robert P. Mosteller
Faculty Publications
No abstract provided.
Characterizations Of Antimony Tri‐Sulfide Chemically Deposited With Silicotungstic Acid, O. Savadogo, K. C. Mandal
Characterizations Of Antimony Tri‐Sulfide Chemically Deposited With Silicotungstic Acid, O. Savadogo, K. C. Mandal
Faculty Publications
No abstract provided.
Parameter Sensitivity And Optimization Predictions Of A Hydrogen/Oxygen Alkaline Fuel Cell Model, Michael C. Kimble, Ralph E. White
Parameter Sensitivity And Optimization Predictions Of A Hydrogen/Oxygen Alkaline Fuel Cell Model, Michael C. Kimble, Ralph E. White
Faculty Publications
A mathematical model is used to predict parameter sensitivities and optimal design parameters for a hydrogen/oxygen alkaline fuel cell. A sensitivity analysis of the various transport and electrode kinetic parameters indicates which parameters have the most influence on the predicted current density and over which range of potentials these parameters affect the fuel-cell performance the most. This information can be used to decide which parameters should be optimized or determined more accurately through further modeling or experimental studies. The effect of various design parameters on the limiting current density are investigated to determine if optimal values exist for the parameters. …
The Self-Discharge Of The Niooh/Ni(Oh)2 Electrode Constant Potential Study, Z. Mao, Ralph E. White
The Self-Discharge Of The Niooh/Ni(Oh)2 Electrode Constant Potential Study, Z. Mao, Ralph E. White
Faculty Publications
Hydrogen oxidation currents at a NiOOH/Ni(OH)2 electrode were measured directly at constant potentials for various hydrogen pressures and states of charge. It was found that the hydrogen oxidation current is linearly proportional to the hydrogen pressure at all electrode potentials and that the logarithm of the anodic current is a linear function of electrode potential. It was also found that hydrogen oxidation on the nickel substrate material was strongly inhibited by the presence of nickel hydroxide on the substrate surface. By comparing the currents for hydrogen oxidation and oxygen evolution on the NiOOH/Ni(OH)2 electrode and on a nickel …
Mathematical Modeling Of Cathodic Protection Using The Boundary Element Method With A Nonlinear Polarization Curve, J. F. Fan, S. N. R Pakalapati, T. V. Nguyen, Ralph E. White, R. B. Griffin
Mathematical Modeling Of Cathodic Protection Using The Boundary Element Method With A Nonlinear Polarization Curve, J. F. Fan, S. N. R Pakalapati, T. V. Nguyen, Ralph E. White, R. B. Griffin
Faculty Publications
The distributions of potential and current density around a cathodically protected pipeline in seawater were determined using the boundary element technique. A nonlinear polarization curve for a low carbon steel in artificial sea water was obtained from dc-potentiodynamic measurements and was fitted for use as the boundary condition on the pipe. The program was used to evaluate cases in which one or two aluminum sacrificial anodes are used to protect a low carbon steelpipe in seawater. The results show that the number of anodes, the sizes of the anodes, and the distance between the anodes and the cathode are of …
Hydrogen Diffusion, Solubility, And Water Uptake In Dow's Short-Side-Chain Perfluorocarbon Membranes, Yu-Min Tsou, M. C. Kimble, Ralph E. White
Hydrogen Diffusion, Solubility, And Water Uptake In Dow's Short-Side-Chain Perfluorocarbon Membranes, Yu-Min Tsou, M. C. Kimble, Ralph E. White
Faculty Publications
Hydrogen gas diffusion coefficients and solubilities as well as water uptake values are reported for Dow's short-side-chain perfluoro-sulfonic and -carboxylic membranes of different equivalent weight (EW). The diffusion coefficients and solubilities were determined with an electrochemical test cell. Hydrogen solubility decreases with increasing EW in the lower EW range and tends to level off at higher EWs for both types of membranes. Both hydrogen solubility and diffusion coefficients of a sulfonic membrane with EW higher than 800 are higher than the corresponding values of a carboxylic membrane of similar EW. An unusual maximum is observed in the diffusion coefficient-EW plot …
Calorimetric Determination Of The Thermoneutral Potential Of Li/Bcx And Li/Socl2 Cells, E. E. Kalu, Ralph E. White, E. C. Darcy
Calorimetric Determination Of The Thermoneutral Potential Of Li/Bcx And Li/Socl2 Cells, E. E. Kalu, Ralph E. White, E. C. Darcy
Faculty Publications
Through a continuous recording of the cell voltage, heat flow, and current, the effective thermoneutral potential, Eetpof Li/BCX and Li/SOCl2 cells were determined in the temperature range, 0–60°C. The depth of discharge (DOD), temperature (T), and cell type (cell chemistry) affect the effective thermoneutral potential. The effective thermoneutral potential, Eetp differs from the classical thermoneutral potential of a cell because it takes into account the heat flow due to non-faradaic processes. The average effective thermoneutral potential at 25°C (determined by selecting the most constant region of Eetp vs. time of discharge) was 4.0 …
Comparing Electrochemical Impedance Spectroscopy Methods For Estimating The Degree Of Delamination Of Organic Coatings On Steel, S. A. Mccluney, S. N. Popova, Branko N. Popov, Ralph E. White, R. B. Griffin
Comparing Electrochemical Impedance Spectroscopy Methods For Estimating The Degree Of Delamination Of Organic Coatings On Steel, S. A. Mccluney, S. N. Popova, Branko N. Popov, Ralph E. White, R. B. Griffin
Faculty Publications
Electrochemical impedance spectroscopy (EIS) was used to evaluate the degree of delamination of the epoxy primer Uniprime ED-41 electrocoated on phosphate-treated cold-rolled steel in 3.5% NaCl exposed to air. Specimens with coating thicknesses of 20.3 and 20.8 µm and surface areas of 78.5 cm2 were used. Coating parameters were obtained using a circuit-analog model. The area of delamination was estimated using several EIS parameters, including the pore resistance and the break point frequency. These values were compared to the corroded area determined visually. All methods considered exhibited a strong correlation over some or all of the range of …
Reduction Of Chromium (Vi) When Solar Selective Black Chromium Is Deposited In The Presence Of Organic Additive, Branko N. Popov, Ralph E. White, D. Slavkov, Z. Koneska
Reduction Of Chromium (Vi) When Solar Selective Black Chromium Is Deposited In The Presence Of Organic Additive, Branko N. Popov, Ralph E. White, D. Slavkov, Z. Koneska
Faculty Publications
Electrochemical dc methods were used to study the reduction of chromium (VI) in the presence of organic additives. It is shown that F–, thiourea, and citric acid are essential to enable deposition of black chrome from concentrated chromic acid solutions. A new formulation of the plating bath is defined. The optimum operating conditions under which spectrally selective surface of black chrome is deposited have been determined.
Measurements Of The Fundamental Thermodynamic Parameters Of Li/Bcx And Li/Socl2 Cells, E. E. Kalu, Ralph E. White, E. C. Darcy
Measurements Of The Fundamental Thermodynamic Parameters Of Li/Bcx And Li/Socl2 Cells, E. E. Kalu, Ralph E. White, E. C. Darcy
Faculty Publications
The thermodynamic data needed to estimate the heat generation characteristics of Li/BCX and Li/SOCl2 cells were determined using two experimental techniques, equilibrium or reversible cell discharge and measurement of open circuitpotential as a function of temperature. The results obtained showed that the reversible cell potential (Er), the temperature dependence of the reversible cell potential (dEr/dT) and thermoneutral potential (Eh) of the BCX cell were respectively, Er,25oc = 3.74 V, dEr/dT = –0.857 ± 0.198 mV/K and Eh = 3.994 …
A Mathematical Model Of A Cuo/Cu Vaporvolt Cell, Makoto Kawanami, Trung V. Nguyen, Ralph E. White
A Mathematical Model Of A Cuo/Cu Vaporvolt Cell, Makoto Kawanami, Trung V. Nguyen, Ralph E. White
Faculty Publications
A new battery named "Vaporvolt"b cell is in the early stage of its development. A mathematical model of a CuO/CuVaporvolt cell is presented that can be used to predict the potential and the transport behavior of the cell during discharge.A sensitivity analysis of the various transport and electrokinetic parameters indicates which parameters have the mostinfluence on the predicted energy and power density of the Vaporvolt cell. This information can be used to decide whichparameters should be optimized or determined more accurately through further modeling or experimental studies. Theoptimal thicknesses of electrodes and separator, the concentration of the electrolyte, and …
Laurence G. Thompson: Biographical And Bibliographical Footnotes, Christian Jochim, Rodney Taylor
Laurence G. Thompson: Biographical And Bibliographical Footnotes, Christian Jochim, Rodney Taylor
Faculty Publications
No abstract provided.
Confucius And Capitalism: Views Of Confucianism In Works On Confucian Ethics And Economic Development, Christian Jochim
Confucius And Capitalism: Views Of Confucianism In Works On Confucian Ethics And Economic Development, Christian Jochim
Faculty Publications
No abstract provided.
What Is The Relationship Between Workplace Literacy And Content-Based Instruction?, Rosemary C. Henze, Anne Katz
What Is The Relationship Between Workplace Literacy And Content-Based Instruction?, Rosemary C. Henze, Anne Katz
Faculty Publications
No abstract provided.
The Ute Mode Of War In The Conflict Of 1865-1868, Albert Winkler
The Ute Mode Of War In The Conflict Of 1865-1868, Albert Winkler
Faculty Publications
The Ute Indians of Utah rebelled in 1865 which led to war for the next three years. Throughout the conflict, small numbers of Utah warriors showed great skill in raiding white settlements of central Utah and in keeping their enemies at bay.
An Approach To The Evaluation Of Elt Preparation Programs, Stephen J. Gaies
An Approach To The Evaluation Of Elt Preparation Programs, Stephen J. Gaies
Faculty Publications
Discussion of the evaluation of training programs for teachers of English as a Second Language consists of: (1) characterization of general approaches; (2) review of reasons for interest in program evaluation; and (3) description of a University of Northern Iowa (UNI) evaluation project that uses a portfolio approach extending 3 years beyond program completion. At UNI; assessment of teacher trainees occurs at four points in the trainee's career: at declaration of undergraduate ESL major; at approximately the second semester of the junior year; during the last undergraduate semester; and 1-3 years after graduation. The principal method used is evaluation of …
Math Student Teachers: How Well Prepared Are They?, Richard G. Stahlhut
Math Student Teachers: How Well Prepared Are They?, Richard G. Stahlhut
Faculty Publications
This study was conducted to find out how well mathematics majors at the University of Northern Iowa were prepared in the foundations of effective teaching practices and how well they performed during the student teaching experience. Data were gathered from mathematics student teachers (N=22) who were observed; interviewed; and asked to keep daily journals. Results suggest that mathematics teacher education students: (1) be required to create practical problems for pupils for every mathematics course in grades 7-12; (2) be required to take a course that deals with writing across the curriculum so they can better incorporate English into their classroom …
Creating Informal Play Opportunities: Are Parents' And Preschoolers' Initiations Related To Children's Competence With Peers?, Gary W. Ladd, Craig H. Hart
Creating Informal Play Opportunities: Are Parents' And Preschoolers' Initiations Related To Children's Competence With Peers?, Gary W. Ladd, Craig H. Hart
Faculty Publications
Preschoolers' social competence may depend on the frequency with which informal play activities are initiated by parents', children, and playmates. In this study, measures ofchildren's peer relations in informal and school contexts and the frequency of parents', children's, and peers' play initiations were obtained with 83 preschool children and their families on 2 occasions. Frequent parent initiations were associated with higher levels of prosocial behavior, lower levels of nonsocial behavior and, among boys, greater peer acceptance in preschool. Children who were more initiating of informal peer contacts displayed less anxious behavior in school and were better liked by their classmates. …
Deerly, Departed (On The Lighter Side), Paul A. Lebel
Deerly, Departed (On The Lighter Side), Paul A. Lebel
Faculty Publications
No abstract provided.
Divided Justice: A Commentary On The Nomination And Confirmation Of Justice Thomas, Michael J. Gerhardt
Divided Justice: A Commentary On The Nomination And Confirmation Of Justice Thomas, Michael J. Gerhardt
Faculty Publications
No abstract provided.
Justice In The Black Hawk War: The Trial Of Thomas Jose, Albert Winkler
Justice In The Black Hawk War: The Trial Of Thomas Jose, Albert Winkler
Faculty Publications
During Utah’s Black Hawk War 1865-1868 there were some instances of whites murdering Indians, and these people were never brought to trial. In 1866, Thomas Jose was brought to trial for killing an Indian, and he was convicted for murder. Even though his punishment was relatively mild, the justice system was made to work in defense of the Indians.