Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (9644)
- Physical Sciences and Mathematics (4962)
- Social and Behavioral Sciences (3670)
- Education (3096)
- Law (2418)
-
- Life Sciences (2406)
- Civil and Environmental Engineering (2198)
- Arts and Humanities (2127)
- Computer Sciences (1969)
- Electrical and Computer Engineering (1718)
- Medicine and Health Sciences (1560)
- Mechanical Engineering (1539)
- Computer Engineering (1428)
- Business (1251)
- Higher Education (1103)
- Civil Engineering (890)
- Biomedical Engineering and Bioengineering (857)
- Materials Science and Engineering (768)
- History (746)
- Environmental Engineering (727)
- Library and Information Science (659)
- Physics (651)
- Public Affairs, Public Policy and Public Administration (630)
- Environmental Sciences (612)
- Communication (604)
- Chemistry (599)
- Chemical Engineering (584)
- Agriculture (557)
- Aerospace Engineering (543)
- Hydraulic Engineering (495)
- Institution
-
- Purdue University (1899)
- University of Nebraska - Lincoln (1123)
- Utah State University (846)
- Brigham Young University (842)
- Missouri University of Science and Technology (699)
-
- California Polytechnic State University, San Luis Obispo (591)
- Engineering Conferences International (589)
- TÜBİTAK (588)
- University of South Florida (577)
- University of New Hampshire (517)
- Singapore Management University (487)
- University of Kentucky (468)
- University of Plymouth (457)
- Louisiana State University (439)
- Walden University (434)
- Embry-Riddle Aeronautical University (429)
- Portland State University (427)
- Clemson University (422)
- University of New Mexico (406)
- University of Mississippi (405)
- Technological University Dublin (400)
- Georgia Southern University (399)
- City University of New York (CUNY) (387)
- University of Arkansas, Fayetteville (366)
- Old Dominion University (364)
- University of Texas at Arlington (359)
- Changsha University of Science and Technology (354)
- University of Central Florida (330)
- Virginia Commonwealth University (315)
- Western University (311)
- Keyword
-
- Applied sciences (443)
- Education (278)
- Newspaper (195)
- Georgia Southern University (160)
- Engineering (151)
-
- Higher education (145)
- Technology (144)
- Optimization (139)
- Climate change (134)
- News Releases (132)
- Simulation (122)
- Sustainability (112)
- 2016 (111)
- Design (109)
- STEM (101)
- Student newspaper (99)
- Research (96)
- Machine learning (90)
- Modeling (87)
- Biological sciences (86)
- Pure sciences (85)
- Newsletter (83)
- Security (83)
- History (81)
- Newspapers (81)
- Agriculture (79)
- Leadership (79)
- United States (78)
- Social media (77)
- Social sciences (76)
- Publication
-
- Theses and Dissertations (1308)
- Electronic Theses and Dissertations (560)
- Faculty Publications (486)
- Walden Dissertations and Doctoral Studies (421)
- Open Access Dissertations (414)
-
- Turkish Journal of Electrical Engineering and Computer Sciences (372)
- International Congress on Environmental Modelling and Software (361)
- Research Collection School Of Computing and Information Systems (357)
- Food and Machinery (354)
- Theses (288)
- Canadian Society for Civil Engineering (278)
- Articles (248)
- Cell Culture Engineering XV (245)
- International Refrigeration and Air Conditioning Conference (239)
- Open Access Theses (231)
- Dissertations (230)
- Master's Theses (230)
- Doctoral Dissertations (222)
- Masters Theses (220)
- Publications and Research (219)
- The 8th International Conference on Physical and Numerical Simulation of Materials Processing (207)
- University of Mississippi News (193)
- USF Tampa Graduate Theses and Dissertations (189)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (186)
- Applied Mathematics & Information Sciences (181)
- Publications (180)
- Faculty Scholarship (177)
- Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions) (166)
- Graduate Theses and Dissertations (160)
- Honors Theses (160)
- Publication Type
Articles 1321 - 1350 of 36010
Full-Text Articles in Entire DC Network
The Family History Of Jerab Abraham Pino, Jerab Abraham Pino
The Family History Of Jerab Abraham Pino, Jerab Abraham Pino
Your Family in History: HIST 550/700
This paper recounts the history of several generations of the family of Jerab Abraham Pino. Included is a structured genealogy that covers five generations of his family tree.
Dilation Behavior Of Thermal Spray Coatings, Miryan Lorena Bejarano
Dilation Behavior Of Thermal Spray Coatings, Miryan Lorena Bejarano
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Thermal Spray (TS) is a very versatile manufacturing process to deposit thick coatings on a variety of substrates. Coatings are used in protective (i.e. wear, chemical attack, high temperature, etc.) and functional (i.e. sensors) applications. TS coatings have a unique lamellar microstructure as a result of the overlapping of millions of molten and partially-molten particles. During processing, high deformation by impact, high temperature, and rapid solidification lead to a complex hierarchical material system that contains a high amount of microstructural defects. The presence of defects in the microstructure contribute to differences in property values in comparison to bulk materials. Thermal …
Interrogation Of Possible Imaging Conditions For Radiation Sensitive Metal Organic Frameworks In Transmission Electron Microscopes, Wei-Yu Pan
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Although transmission electron microscopy (TEM) is extremely powerful at the characterization of materials on the nano- and atomic scales, the advantages introduce accompanying drawbacks. That is, high energy electrons offer the structural information while imparting radiation damage to the samples. Metal organic frameworks are a new class of materials that have potential applications in gas storage and catalysis. A direct imaging of their lattice structures is highly desired. However, these samples are extremely radiation sensitive. In order to characterize their structures, low-dose TEM need to be performed. To date, there is a lack of a systematic of radiation study of …
On The Fracture Toughness And Crack Growth Resistance Of Bio-Inspired Thermal Spray Hybrid Composites, Michael Murray Resnick
On The Fracture Toughness And Crack Growth Resistance Of Bio-Inspired Thermal Spray Hybrid Composites, Michael Murray Resnick
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Nature has presented a remarkable bill of materials which show excellent mechanical properties. Among those which have been extensively studied are wood, bone, rocks, spider silk, nacre etc. Interestingly all of these materials are primarily known to have great fracture resistance and present excellent example of natural and layer-by-layer evolution of materials. These materials have inspired the current research society to synthesize new generation materials with mechanical properties beyond the conventional materials such as metal, ceramic and polymers. Nacre, one of the most researched natural materials, is present in particular sea-shells and shows a layered brick-and-mortar structure. Designing nacre-like structures …
Application Of Lattice Boltzmann Methods In Complex Mass Transfer Systems, Ning Sun
Application Of Lattice Boltzmann Methods In Complex Mass Transfer Systems, Ning Sun
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Lattice Boltzmann Method (LBM) is a novel computational fluid dynamics method that can easily handle complex and dynamic boundaries, couple local or interfacial interactions/reactions, and be easily parallelized allowing for simulation of large systems. While most of the current studies in LBM mainly focus on fluid dynamics, however, the inherent power of this method makes it an ideal candidate for the study of mass transfer systems involving complex/dynamic microstructures and local reactions. In this thesis, LBM is introduced to be an alternative computational method for the study of electrochemical energy storage systems (Li-ion batteries (LIBs) and electric double layer capacitors …
The Role Of Nanofillers In Polymer Nanocomposites, Di Xu
The Role Of Nanofillers In Polymer Nanocomposites, Di Xu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Polymer nanocomposites have been widely used in many fields. By introducing nanoparticles as fillers, researchers are able to get reinforced materials and new materials with novel properties, such as stronger mechanics, enhanced optical properties and improved conductivity. Though experimental techniques have rapidly advanced to enable better control of materials at atomic level, there is still a lack of a fundamental understanding of the dynamics and structure-properties relations in polymer nanocomposites. In this thesis, we use computer simulations to study the molecular structure and connections between microstate to macro properties of a variety of nanocomposites. Our goal is to understand the …
Manipulation Of Dna At Polymer Surfaces: Electric-Field Controlled Adsorption, Patterned Cutting And Stretching, Ke Zhu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Recent developments in next generation DNA sequencing and optical restriction mapping involve manipulation of DNA molecules on surfaces. Here we propose a novel method that can control the adsorbed DNA density on polymer surfaces by applying an electric field. The efficiency of deposition was optimized with respect to DNA concentration in solution, electric field type and electric field strength. Enhancement of adsorption density of greater than twenty-fold was found. In addition, DNA molecules are fragmented on a polymer surface by soft lithography. Several experimental conditions have been tested to optimize the polydimethylsiloxane (PDMS) stamp fabrication and DNA cutting method. Fragmented …
Evolution Of Surface Morphology And Chemistry In Zno Thin Films And Steel Surfaces Studied By Synchrotron X-Ray Spectroscopy And Imaging, Hua Jiang
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Thin film and surface treatment play an important role in developing materials with unique properties. They have been widely used in energy generation and storage, optical devices, LEDS, electrical semiconductor devices, etc. The stability and functionality of them under operational environment are important, especially the surface morphology and chemical evolution at micro-scale. This information is critical to understand the behaviors of the materials under various environments for a wide range of applications. Synchrotron x-ray fluorescence (XRF) and x-ray absorption near edge structure (XANES) are suitable techniques on investigating surface morphology and chemical evolution. Here, we use both techniques to investigate …
An Investigation Into The Effects Of Process Parameters On The Quality Of Laminates, Haomin Liu
An Investigation Into The Effects Of Process Parameters On The Quality Of Laminates, Haomin Liu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
In this work curing process for glass fiber reinforced polymer composite laminates is studied. Curing temperature, time and pressure were selected as the cure parameters for optimization. Central composite design (CCD) of design of experiment (DOE) approach was adopted for conducting the experiments. Flexural strength and flexural modulus of the composite laminate were the response measures to select the final cure parameters. Analysis of variance (ANOVA), surface plots and contour plots clearly demonstrate that temperature, time and pressure contribute greatly to the response functions. This establishes two models that can be used to predict the mechanical properties of composite laminated …
Synthesis Of Binary Nanocrystalline Aluminum Alloys Through High Energy Ball Milling, Lacey Lynn Schwab
Synthesis Of Binary Nanocrystalline Aluminum Alloys Through High Energy Ball Milling, Lacey Lynn Schwab
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Nanocrystalline metals have useful mechanical properties such as high strength, improved wear resistance, and longer fatigue life; however, they are relatively unstable – grain boundary doping is a viable method towards stabilization [1-3]. After comparing the work of Murdoch and Schuh, that used a thermodynamic model to estimate grain boundary segregation enthalpy to the experimental work of Umbrajkar et al. | it was realized that mechanical alloying is a processing route for grain boundary stabilization [10,11]. Whether or not chemical mixing has occurred is a good indicator of a powder system’s potential for grain boundary doping. 99Al1Si, 99Al1Mg, 99Al1Zr, and …
Synchrotron X-Ray Topography Analysis Of Dislocation Line Directions In 4h-Sic Single Crystals, Jianing Yan
Synchrotron X-Ray Topography Analysis Of Dislocation Line Directions In 4h-Sic Single Crystals, Jianing Yan
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
This thesis presents a Synchrotron White Beam X-ray Topography study of dislocations in 4H- SiC single crystals. Basic introduction is given including the crystal structure and atomic arrangement, crystal growth techniques, and the dislocation types. The commonly observed dislocations, including Micropipes (MPs), Basal Plane Dislocations (BPDs), Threading Screw Dislocations (TSDs), Threading Edge Dislocations (TEDs), Threading Mixed Dislocations (TMDs), in 4H-SiC single crystals have been reviewed. Since the extensive application of SiC for power devices is limited by the presence of these dislocations, the minimization, and eventually elimination of these dislocations, have been a major impetus in both research and commercial …
The Role Of Nanofillers In Polymer Nanocomposites, Di Xu
The Role Of Nanofillers In Polymer Nanocomposites, Di Xu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Polymer nanocomposites have been widely used in many fields. By introducing nanoparticles as fillers, researchers are able to get reinforced materials and new materials with novel properties, such as stronger mechanics, enhanced optical properties and improved conductivity. Though experimental techniques have rapidly advanced to enable better control of materials at atomic level, there is still a lack of a fundamental understanding of the dynamics and structure-properties relations in polymer nanocomposites. In this thesis, we use computer simulations to study the molecular structure and connections between microstate to macro properties of a variety of nanocomposites. Our goal is to understand the …
Novel Adhesion Properties Of Irreversibly Adsorbed Polymer Chains, Zhizhao Chen
Novel Adhesion Properties Of Irreversibly Adsorbed Polymer Chains, Zhizhao Chen
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Interpenetrations (or entanglements) between chemically identical polymers are important parameters in fundamental physics and industrial applications. However, little is known about the interaction between free polymer chains and chemically identical, but otherwise highly adsorbed chains on solid surfaces. Here we report an unusual interaction between free chains and chemically identical flattened chains which have many surface-segmental contacts with solids. Based on the mechanical adhesion measurements, we found the 2.5 nm-thick equilibrium polyethylene-oxide (PEO) flattened layer show no adhesion with the PEO melts even at T >Tm. Liquid contact angle measurements further revealed that the flattened layer has the same macroscopic …
Characterization Of Structural Defects In Wide Band-Gap Compound Materials For Semiconductor And Opto-Electronic Applications, Ouloide Yannick Goue
Characterization Of Structural Defects In Wide Band-Gap Compound Materials For Semiconductor And Opto-Electronic Applications, Ouloide Yannick Goue
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Single crystals of binary and ternary compounds are touted to replace silicon for specialized applications in the semiconductor industry. However, the relative high density of structural defects in those crystals has hampered the performance of devices built on them. In order to enhance the performance of those devices, structurally perfect single crystals must be grown. The aim of this thesis is to investigate the interplay between crystal growth process and crystal quality as well as structural defect types and transport property. To this end, the thesis is divided into two parts. The first part provides a general review of the …
3d Printing Of Metals, Ying Mu
3d Printing Of Metals, Ying Mu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Additive manufacturing (AM), widely known as 3D printing, is a manufacturing method that produces parts from powders layer by layer. Many techniques have been developed to achieve this. In this thesis, the historical development and general principles of additive manufacturing are covered. The techniques for producing metal parts are explored, with a focus on the defects, processing parameters, mechanical properties and the relationships between them and the influences on each other. The various metal AM techniques are compared with the analysis of their strength, limitations and applicable conditions. The applications and mechanical properties of the most studied metal/alloys is another …
An Investigation Into The Effects Of Process Parameters On The Quality Of Laminates, Haomin Liu
An Investigation Into The Effects Of Process Parameters On The Quality Of Laminates, Haomin Liu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
In this work curing process for glass fiber reinforced polymer composite laminates is studied. Curing temperature, time and pressure were selected as the cure parameters for optimization. Central composite design (CCD) of design of experiment (DOE) approach was adopted for conducting the experiments. Flexural strength and flexural modulus of the composite laminate were the response measures to select the final cure parameters. Analysis of variance (ANOVA), surface plots and contour plots clearly demonstrate that temperature, time and pressure contribute greatly to the response functions. This establishes two models that can be used to predict the mechanical properties of composite laminated …
Synthesis Of Binary Nanocrystalline Aluminum Alloys Through High Energy Ball Milling, Lacey Lynn Schwab
Synthesis Of Binary Nanocrystalline Aluminum Alloys Through High Energy Ball Milling, Lacey Lynn Schwab
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Nanocrystalline metals have useful mechanical properties such as high strength, improved wear resistance, and longer fatigue life; however, they are relatively unstable – grain boundary doping is a viable method towards stabilization [1-3]. After comparing the work of Murdoch and Schuh, that used a thermodynamic model to estimate grain boundary segregation enthalpy to the experimental work of Umbrajkar et al. | it was realized that mechanical alloying is a processing route for grain boundary stabilization [10,11]. Whether or not chemical mixing has occurred is a good indicator of a powder system’s potential for grain boundary doping. 99Al1Si, 99Al1Mg, 99Al1Zr, and …
Transport Studies Of Superconducting Materials, Cheng Zhang
Transport Studies Of Superconducting Materials, Cheng Zhang
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Superconducting materials are promising for future applications on energy transport and storage. The key properties for superconductors are critical temperature Tc, critical current density Jc and upper critical field Hc2. In this dissertation, detailed transport studies were performed on two superconducting materials: FeSe0.5Te0.5 thin films and the second generation YBa2Cu3O7-δ coated conductors, in order to determine what limits the broad applications of these superconductors. High quality of FeSe0.5Te0.5 thin films were grown by pulsed laser deposition. Low temperature oxygen annealing and proton irradiation were conducted on the films, as the post-treatment techniques in order to improve the transport performance. Jc …
Engineering Interface And Analysis In Orthopedic Surgery: Resection Of Bone Tumors And Reconstruction Using Biomimetic Implants, Carlos Gabriel Helguero Alcivar
Engineering Interface And Analysis In Orthopedic Surgery: Resection Of Bone Tumors And Reconstruction Using Biomimetic Implants, Carlos Gabriel Helguero Alcivar
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
As healthcare grows more advanced, the next step is an individualized approach to patient care. Skeletal tumor resection provides complex challenges for surgeons. The goal of providing an accurate wide resection in sarcomas from preoperative plans while trying to preserve as much functionality remains a difficult task. We propose to leverage new devel- opments in 3-D printing, computer aided design (CAD), and finite element analysis (FEA) to design and manufacture personalized cutting guides in order to increase the accuracy of childhood bone cancer resections, minimize post-resection fracture risk, and maximize al- lograft osteointegration. On the other side, after proper resection, …
A Quantitative Policy Analysis Of Bronx County Public High School Students’ Mathematics Course Completion | A Quantitative Policy Analysis Of Bronx County Public High School Students’ Mathematics Course Completion, Ramon Emilio Fernandez
A Quantitative Policy Analysis Of Bronx County Public High School Students’ Mathematics Course Completion | A Quantitative Policy Analysis Of Bronx County Public High School Students’ Mathematics Course Completion, Ramon Emilio Fernandez
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Education reform remains a work in progress. Research, government, and policy reports emphasize that a high-quality high school mathematics education is key to the future of the nation. Technical and research work in science, technology, engineering, mathematics (STEM), social sciences, and life sciences have been identified as essential requirements to bolster the economic growth, national competitiveness, and security of the United States. The academic preparedness, college aspiration, persistence, graduation, as well as earnings of high school graduates who complete college preparatory and advanced math courses are all positively, strongly, and significantly correlated to their math course completion. Despite various efforts …
A Medical Decision Model For Tinnitus Treatment Assessment, Hong Don Ihn
A Medical Decision Model For Tinnitus Treatment Assessment, Hong Don Ihn
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Tinnitus means objective somatosounds, and subjective auditory or sensorineural perception of noise without external physical sounds. There are several tinnitus treatments, but it is difficult to ascertain how otorhinolaryngologists rank the alternatives of treatments due to the insufficiency of available evidence and standards. A hierarchical decision model (HDM), a popular multi-criteria decision analysis (MCDA) method, can help to implement a comprehensive assessment of tinnitus treatments and rational decision-making to select the appropriate tinnitus treatments. The HDM considers a holistic approach using multiple dimensions, criteria and expert judgments to acquire the relative ranking of candidate tinnitus treatments. The four dimensions selected …
The Role Of The Kin28 Protein Kinase In Chromatin Remodeling And Transcription Termination, Daniel Roy Labuz
The Role Of The Kin28 Protein Kinase In Chromatin Remodeling And Transcription Termination, Daniel Roy Labuz
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
The Kin28 subunit of the general transcription factor complex, TFIIH, is a kinase that phosphorylates the heptapeptide repeats at serine position 5 (Ser5) on the C-terminal domain of RNA polymerase II (Pol II). Optimal Ser5 phosphorylation is important during transcription for Pol II to transition from the initiation step to the elongation step in a process called promoter escape. During transcription initiation, the nucleosome directly downstream of the promoter, called +1, must be disassembled before Pol II can engage the transcription start site. Previous work showed that the transcription machinery plays a direct role in the disassembly of the +1 …
Evaluation Of Contrast Agents Used In Computed Tomography, Michael Joseph Bonvento
Evaluation Of Contrast Agents Used In Computed Tomography, Michael Joseph Bonvento
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Contrast agents have been routinely employed in radiographic applications for more than 80 years and in computed tomography (CT) for more than 50 years. These agents have high atomic number increasing the photoelectric interaction probability thereby reducing photon intensity projected through the contrast containing structure and improving available image contrast. A wide variety of contrast agents have been examined over the years, however, iodine and barium containing agents make up the vast majority of applications. Other agents are or may become available which may find utility due to reduced toxicity, better characteristics for imaging or dose reduction. This is particularly …
Diffuse Correlation And Optical Spectroscopies For The Monitoring Of Spinal Cord Hemodynamics, Angela Sofia Kogler
Diffuse Correlation And Optical Spectroscopies For The Monitoring Of Spinal Cord Hemodynamics, Angela Sofia Kogler
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Spinal cord ischemia, caused by a prolonged loss of blood flow to the spinal cord, can occur as a result of direct trauma to the spinal cord or as a complication of major vascular, spine and spinal cord surgery, and surgeries for the stabilization of spinal cord trauma, often resulting in partial or complete paresis/paralysis. Current electrophysiological methods employed to detect spinal cord ischemia, namely somatosensory and motor evoked potentials, are indirect, temporally insensitive, nonspecific, and cumbersome. There is no technology currently available that can directly and immediately detect the onset of spinal cord ischemia, nor provide immediate feedback on …
Oxidized Graphene Nanoparticles As A Delivery System For The Bioactive Sphingolipid Ceramide, Cassandra Suhrland
Oxidized Graphene Nanoparticles As A Delivery System For The Bioactive Sphingolipid Ceramide, Cassandra Suhrland
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
In recent years there has been a growing appreciation for the active functions certain lipids have in cellular metabolism. These "bioactive lipids" have been found to be an important part of many cell signaling processes. In particular, the bioactive sphingolipid ceramide has emerged as an important player in cancer biology. Dysregulation of ceramide metabolism has been shown to impart resistance to drug and radiation treatment in certain types of cancer, with low levels of specific ceramide species conferring resistance to apoptosis. It has also been shown that restoring levels of these ceramides in cancer cells through exogenous delivery also restores …
Carbon Nanotubes As Localized Microwave Hyperthermia Agents, Shawn Xie
Carbon Nanotubes As Localized Microwave Hyperthermia Agents, Shawn Xie
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Carbon nanotubes (CNTs) in recent years have been cited to provide great potential for biomedical applications such as drug delivery, imaging and hyperthermia. In particular, it has been shown that they are able to interact with a broad array of electromagnetic radiation, including microwaves. The latter is of great interest for cancer imaging and therapy due to its non-ionizing nature and unique balance of spatial resolution and penetration depth, as well as ability to thermally ablate tumor tissue. Combined with microwaves, CNTs can serve as a platform with high selectivity of microwave absorption, enabling selective microwave thermal therapy, and effective …
Understanding Structure And Response In Thermally Responsive Block Copolymer Assemblies, Zhe Sun
Understanding Structure And Response In Thermally Responsive Block Copolymer Assemblies, Zhe Sun
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
There has been considerable and growing interest in the field of stimulus-responsive polymers over the last two decades, as they can be exploited in many applications including biomedicine, sensing, and separations. Temperature remains the most extensively investigated physical stimulus due to its ease of application and monitoring. In this dissertation, a new class of thermally responsive ABC poly(ethylene oxide)-block-poly(N,N-diethylacrylamide)-block-poly(N,N-dibutylacrylamide) (PEO-b-PDEAm-b-PDBAm) triblock copolymers has been synthesized by reversible addition−fragmentation chain-transfer (RAFT) polymerization. In aqueous solution, PEO-b-PDEAm-b-PDBAm copolymers self-assemble into a wide range of different aggregated structures including spherical micelles, cylindrical micelles, vesicles and large compound micelles. The precise morphology mainly depends …
In Situ Ambient Pressure Studies Of Dynamic Surface Transformations On Cu-Based Model Catalysts, Fang Xu
In Situ Ambient Pressure Studies Of Dynamic Surface Transformations On Cu-Based Model Catalysts, Fang Xu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Copper-based heterogeneous catalysts are widely used in many industrial applications across the fields of fuels and energy. In order to probe the catalyst structure under reaction conditions, state-of-the-art ambient pressure techniques have been implemented. This dissertation is focused on room temperature in situ ambient pressure (AP) (10 mTorr to 2 Torr) studies on Cu-based model catalysts including Cu(111), Cu2O/Cu(111), potassium modified Cu2O/Cu(111) and CeO2/Cu2O/Cu(111). It investigates their surface dynamic transformations using scanning tunneling microscopy (STM), infrared reflection adsorption spectroscopy (IRRAS), and X-ray photoelectron spectroscopy (XPS). Under ambient pressures, Cu(111) surface is roughened by CO, or O2. Atomic H can heal …
Rapid Mobile Software Development For Field Data Collection Applications, Sushal Penugonda
Rapid Mobile Software Development For Field Data Collection Applications, Sushal Penugonda
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
The purpose of this paper is to describe a template system that can be used to design and deploy mobile applications for the purposes of collecting large volumes of data. The implementation referred to in this paper pertains to phone sensor data collected for research studies in the field of indoor localization conducted at Stony Brook University, however many of the concepts can be generalized to other applications. The system is described through team structure, coordination methods, progress evaluation methods, and system integration techniques. Coordination methods involve a custom implementation of agile development, a version control software, knowledge transfer methods …
An Exploratory Study On Process Representations, Chetan Naik
An Exploratory Study On Process Representations, Chetan Naik
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Knowledge about processes is essential for AI systems to understand and reason about the real world events. And, the systems need some form of semantic representation to perform reasoning. At the simplest level, even knowing which class of entities play key roles can be helpful in recognizing and reasoning about events. For instance, given a description ``a puddle drying in the sun", one can recognize this as an instance of the evaporation process using simple role knowledge which asserts (among other things) that the undergoer is a kind of liquid (the puddle), and the enabler is a heat source (the …