Gender inequality persists in the workplace, including in the Canadian Armed Forces (CAF). The CAF is struggling to attain their goal of increasing the representation of women in uniform from 16% to 25%. One factor that may be contributing to their struggle is the cultural response of empowerment messaging to gender inequality. Empowerment messaging coveys that women can succeed in life through personal agency and optimism about the future. However, this seemingly positive messaging has the negative effect of increasing attributions of women’s responsibility for gender inequality while disregarding systemic barriers (i.e., women should overcome sexism because they have personal agency and the individual choice to do so). I contend that the CAF is using empowerment messaging in some of their public messaging, and I propose that the negative effects of empowerment messaging will generalize to the CAF context. In two experiments (total N = 812), exposure to empowerment messaging from a CAF video directly increased the burden placed on women to solve gender inequality in the CAF and indirectly predicted more blame placed on women for causing gender inequality in the CAF. This research suggests that institutional empowerment messaging meant to motivate and inspire women may in fact harm women. The CAF and other institutions struggling with gender inequality should avoid using empowerment messaging in their public communications to prevent harming women, especially with their focus on increasing the number of women in their organizations. / Graduate / 2023-08-10

This study examined the curriculum evolution process of the Industrial College of the Armed Forces (ICAF) and its predecessor, the Army Industrial College (AIC), as it was influenced by a variety of factors between the years 1924 and 1988. Most of the published material used for this study was found in the library of the National Defense University, Fort Lesley J. McNair, Washington, DC. Additionally, current and past College faculty and staff members were interviewed. Six main questions served to guide and focus inquiry for this study. These questions concerned how the curriculum evolution process was affected by (1) various influential persons, (2) recommendations of commissions and boards, (3) social, economic, and political phenomena, (4) military and civilian faculty, (5) educational philosophy, and (6) technological advances. Using the historical method, the study identified five distinct periods in ICAF's curriculum history: 1924-1941, during which AIC's original curriculum sought to forestall a recurrence of industrial mobilization problems; 1943-1964, which saw the emergence of economic mobilization as the overarching curriculum theme; 1964-1975, a time when a strong leader completely restructured the curriculum theme to emphasize management and active learning; 1975-1984, a period when NDU was created as the joint college umbrella, applied behavioral science was introduced, and the curriculum theme returned to mobilization; and 1984-1988, during which the conceptual frameworks of joint and combined warfare and the systems approach guided the continuing search for academic excellence and rigor. The study found that each of the potential change agents affected the way the curriculum evolved. However, the most influential factor was the occasional person who interpreted the significance of a multiplicity or phenomena in an innovative fashion, and consciously chose to restructure curriculum. Commandant, Lieutenant General August Schomburg and Dean of Faculty and Academics, Colonel Barry M. Landson, were the two most effective individuals in this regard. Consequently, the study concluded that, for the most part, curriculum planning was not an orderly, systematic, and analytical process. Generally, curriculum change was found to be incremental and often based on which subjects received greatest media attention or the relative argumentative forcefulness of proponents. / Ed. D.

This study assessed the changing mission of the Industrial College of the Armed Forces as it evolved from the institution's founding as the Army Industrial College in 1924 to its 70th anniversary in 1994. The study drew heavily from archival materials in the Special Collections of the National Defense University in Washington, DC. The problem investigated in this research was to analyze how and why the institution's mission changed over time within the context of internal and external forces and events. Based upon the historical method of research, the study identified six periods in the institution's development over seven decades: its origins in the aftermath of World War I from 1918 to 1924; its growth in the interwar years, 1924 to 1940; the institution's temporary closure and subsequent reconstitution as the Industrial College of the Armed Forces during and after World War II, from 1940 to 1947; a formative period during the Cold War from 1947 to 1962; its continuing evolution throughout the Vietnam era from 1962 to 1974; and finally the College's modern development as a joint service educational institution from 1974 to 1994. The study found that the institution has changed dramatically over much of this century, just as the world and the country's national security concerns have changed profoundly in the same period. The mission of the College has evolved from a narrow focus on training military officers in procurement and industrial mobilization to that of a graduate institution dedicated to educating a select group of promising senior military and civilian officials in the political, economic, and resource dimensions of national security. Over time, the focus has shifted from training to education, from military to national issues, from internal and external educational programs to primarily internal ones, and from a predominant interest in domestic issues to an equally strong concern for international matters. The study finds that a variety of internal and external events and forces have impelled these changes. A wide range of influential individuals and stakeholders, bureaucratic power structures, governmental agencies, special review boards, and various political, economic, military, and social considerations have influenced the mission of the College. The study also concludes that several factors have likely contributed to the institution's relatively unusual longevity as a government entity. Its dual identity as an educational institution and a government organization set apart from the mainstream bureaucracy has had a favorable influence. So too has the institution been aided by the unique service it has provided to multiple customer constituencies. In fact, the College's mission has made it unique as an institution of adult education and learning in this country and perhaps the world. / Ph. D.

<p> We address a functional analysis-based method for the estimation of driving-forces from nonlinear dynamic systems in this thesis. The driving-forces account for the perturbation inputs or the irregular variations in the internal variables of a dynamic system. These inputs are hidden from the observer most of the time if not always. Reconstruction of such inputs when there is too little or no prior knowledge to build a mathematical model to describe the system's behavior is an important problem in many cases in physics and engineering. To this end, we propose a method for the recursive estimation of driving-forces without the availability of an analytic model of the unknown physical phenomenon. </p> <p> The underlying idea of the proposed estimator is to predict the observables onestep ahead of the current time instant, and then retrieve the driving-force from the prediction error. This idea is embodied by predicting the observables using a bank of echo state networks (ESN) in an online fashion, extracting the raw estimates from the prediction error, and then finally smoothing these estimates in separate adaptive filtering stages. The approach described herein distinguishes itself from the similar methods in the literature in its adaptivity and its greater immunity against varying environmental uncertainties. The adaptive nature of the estimator enables us to retrieve both slowly and rapidly varying driving-forces accurately in presence of model or sensor noises, which are illustrated by experiments in the subsequent chapters of this thesis. In particular, some chaotic/stochastic nonlinear models are studied in controlled experiments. The estimation quality of the proposed approach is judged with a reference to the Posterior Cramer-Rao Lower Bound as a theoretical lower limit on the estimation error. </p> <p> The Bayesian and Maximum-Likelihood (ML) methods are also studied for the estimation of driving-forces when partial or full information is available on the mathematical description of the unknown system. These methods serve as practical merits of assessment for the proposed driving-force estimator. Moreover, a direct performance comparison between the proposed estimator and a favorable estimation scheme of a similar kind is provided, which confirms the advantages of the proposed approach. The proposed method is tested on a real-world application on the extraction of sun's magnetic flux from the sunspot time series. It is illustrated that the results obtained by the proposed estimator are in close agreement with the results of two other analytical studies. </p> <p> Finally, a solution to a real problem in practice is proposed using the method. Specifically, extracting the signature of a small random target embedded in the sea surface is addressed using the live recorded data collected with the McMaster IPIX radar. This is the first specific realization of a radar scene analyzer for the cognitive radar reception in the literature to the author's best knowledge. </p> <p> The material in this thesis is presented in a sandwich thesis format, combining two peer reviewed, published journal articles, and another journal article that is prepared for submission. An additional chapter that provides the background material is included for the completeness of the presentation. </p> / Thesis / Doctor of Philosophy (PhD)

<p> We study the Coulomb effect on the proton-proton low-energy scattering parameters when all other effects are represented by a separable potential.</p> <p> For this purpose, we present a formulation for the scattering of two particles via a separable potential. We treat the same problem when any potential, particularly a Coulomb potential or a separable potential, is added to the separable potential. The properties of scattering from a separable potential plus a (local or non-local) potential lead us to the possibility of obtaining a one term separable potential equivalent to a two term separable potential, and a model for the nuclear potential as a sum of a separable potential and a non-separable potential.</p> <p> We determine, to the first order in Me^2/β where β^-1 is the range of the separable potential, the parameters for Yamaguchi's and Naqvi's separable potentials from proton-proton scattering data. We use these parameters to calculate the low-energy proton-proton scattering parameters when the Coulomb interaction is removed. Our results show that the shape dependence of these parameters are somewhat larger than obtained by Heller et al in their investigation on local potentials. Implications of our results concerning the charge symmetry and charge independence of the nuclear forces are discussed.</p> / Thesis / Master of Science (MSc)

Nonlinear frequency conversion provides essential tools for generating new colors and quantum states of light. Conventional nonlinear crystals have the problem of relative lower nonlinear susceptibilities, which result in the large footprint of devices and low efficient. Transition metal dichalcogenides possess huge nonlinear susceptibilities; further, 3R-stacked transition metal dichalcogenide crystals possess aligned layers with broken inversion symmetry, representing ideal candidates to boost the nonlinear optical gain with minimal footprint. Here we report the second-order nonlinear processes of 3R-MoS2 along the ordinary and extraordinary directions. Along the ordinary axis, by measuring the thickness-dependent second-harmonic generation, we present the first measurement of the second harmonic-generation coherence length of 3R-MoS2 and achieve record nonlinear optical enhancement from a van der Waals material, >104 stronger than a monolayer. It is found that 3R-MoS2 slabs exhibit similar conversion efficiencies of lithium niobate, but within 100-fold shorter propagation lengths. Furthermore, along the extraordinary axis, we achieve broadly tunable second-harmonic generation from 3R-MoS2 in a waveguide geometry, revealing the coherence length in such a structure. We characterize the full refractive-index spectrum and quantify its birefringence with near-field nanoimaging. In order to bring 3R-MoS2 into the application field, we have developed two fabrication methods: low-cost femtosecond laser etching and cleanroom nanolithography-based processes. The femtosecond laser writing setup offers a rapid, residue-free, and in-situ method for patterning grating structures. On the other hand, the cleanroom process can provide structures with higher resolution. The cleanroom fabrication process is based on SF6 RIE and E-beam lithography, which can narrow down the minimum linewidth to ~120nm. To achieve mode matching in waveguiding second-order nonlinear conversion, we utilized the mode dispersion relation calculated by an anisotropic model to find the overlapping of wavevectors among different photon energies. We proposed a molybdenum disulfide on silicon nitride structure (MOSS) to further unleash the potential of 3R-MoS2 in optical parametric conversion. Photonic structure optimization was performed using the Lumerical FDTD simulator, achieving a 90% coupling efficiency from SiN to 3R-MoS2 with a taper structure. With a taper length of 50μm, we successfully maintained a single mode of excitation wave in MoS2, which could provide a monotonoic mode source for nonlinear conversion. Our work highlights the potential of 3R-stacked transition metal dichalcogenides for integrated photonics, providing critical parameters, developing high-resolution fabrication processes, and offering initial designs for highly efficient on-chip nonlinear optical devices including periodically poled structures, optical parametric oscillators and amplifiers, and quantum circuits.

The hydrodynamic pressures acting on a floating guardwall can be considered to be a fluid-structure interaction problem. In this research, the fluid-structure system is decoupled assuming that the effects of the structural response on the fluid load pattern are negligible. Therefore, initially, the effects of the flow and pressure distribution, due to the presence of the structure, were computed and then used as boundary conditions for the structural analysis of the guardwall. The deformation of the guardwall was then used to recompute the fluid loads. Because the fluid loading did not change significantly, the decoupling is considered to be valid. In order to obtain the hydrodynamic pressures, an existing 2-D finite element model ? HIVEL2D ? was used with the lock wall being represented by a pressure field on the water surface. The structural system was modeled using the ANSYS finite element program.

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