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Articles 1291 - 1320 of 3180

Full-Text Articles in Engineering

Development Of Cone Testing Device For Improved Deep Foundation Design Protocols, Hai Minh Nguyen May 2017

Development Of Cone Testing Device For Improved Deep Foundation Design Protocols, Hai Minh Nguyen

Civil Engineering Dissertations - Archive

A novel cone penetration test device, the P-cone, has been developed to assist in deep foundation design and this P-cone device combines features of CPTU cone sounding technologies with capabilities to perform bidirectional loading at a given soil depth condition. Using two independent systems, the P cone measures shear stress versus movements of cone shaft and stress versus penetration of the cone tip at desired depths. The P-cone can also improve the penetration depth and offer a potential application for the in situ consolidation test. Laboratory experiments of the P-cone device were successful beyond the expectation. P-cone Tests performed on …

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The Mechanisms And Biomedical Applications Of An Nir Bodipy-Based Switchable Fluorescent Probe, Bingbing Cheng, Venugopal Bandi, Shuai Yu, Francis D’Souza, Kytai T. Nguyen, Yi Hong, Liping Tang, Baohong Yuan, Sundaresan Gobalakrishnan, William Chi-Shing Cho, Jamal Zweit Feb 2017

The Mechanisms And Biomedical Applications Of An Nir Bodipy-Based Switchable Fluorescent Probe, Bingbing Cheng, Venugopal Bandi, Shuai Yu, Francis D’Souza, Kytai T. Nguyen, Yi Hong, Liping Tang, Baohong Yuan, Sundaresan Gobalakrishnan, William Chi-Shing Cho, Jamal Zweit

Bioengineering Faculty Publications - Archive

Highly environment-sensitive fluorophores have been desired for many biomedical applications. Because of the noninvasive operation, high sensitivity, and high specificity to the microenvironment change, they can be used as excellent probes for fluorescence sensing/imaging, cell tracking/imaging, molecular imaging for cancer, and so on (i.e., polarity, viscosity, temperature, or pH measurement). In this work, investigations of the switching mechanism of a recently reported near-infrared environment-sensitive fluorophore, ADP(CA)2, were conducted. Besides, multiple potential biomedical applications of this switchable fluorescent probe have been demonstrated, including wash-free live-cell fluorescence imaging, in vivo tissue fluorescence imaging, temperature sensing, and ultrasound-switchable fluorescence (USF) imaging. The fluorescence …

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A Dual-Modality System For Both Multi-Color Ultrasound-Switchable Fluorescence And Ultrasound Imaging, Jayanth Kandukuri, Shuai Yu, Bingbing Cheng, Venugopal Bandi, Francis D’Souza, Kytai Truong Nguyen, Yi Hong, Baohong Yuan, Jamal Zweit Feb 2017

A Dual-Modality System For Both Multi-Color Ultrasound-Switchable Fluorescence And Ultrasound Imaging, Jayanth Kandukuri, Shuai Yu, Bingbing Cheng, Venugopal Bandi, Francis D’Souza, Kytai Truong Nguyen, Yi Hong, Baohong Yuan, Jamal Zweit

Bioengineering Faculty Publications - Archive

Simultaneous imaging of multiple targets (SIMT) in opaque biological tissues is an important goal for molecular imaging in the future. Multi-color fluorescence imaging in deep tissues is a promising technology to reach this goal. In this work, we developed a dual-modality imaging system by combining our recently developed ultrasound-switchable fluorescence (USF) imaging technology with the conventional ultrasound (US) B-mode imaging. This dual-modality system can simultaneously image tissue acoustic structure information and multi-color fluorophores in centimeter-deep tissue with comparable spatial resolutions. To conduct USF imaging on the same plane (i.e., x-z plane) as US imaging, we adopted two 90 -crossed ultrasound …

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Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 1. Theory And Different Model Concepts, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig Feb 2017

Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 1. Theory And Different Model Concepts, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig

Civil Engineering Faculty Publications - Archive

Evaporation is an important component of the soil water balance. It is composed of water flow and transport processes in a porous medium that are coupled with heat fluxes and free air flow. This work provides a comprehensive review of model concepts used in different research fields to describe evaporation. Concepts range from nonisothermal two-phase flow, two-component transport in the porous medium that is coupled with one-phase flow, two-component transport in the free air flow to isothermal liquid water flow in the porous medium with upper boundary conditions defined by a potential evaporation flux when available energy and transfer to …

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Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 2. Numerical Analysis, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig Feb 2017

Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 2. Numerical Analysis, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig

Civil Engineering Faculty Publications - Archive

In an accompanying paper, we presented an overview of a wide variety of modeling concepts, varying in complexity, used to describe evaporation from soil. Using theoretical analyses, we explained the simplifications and parameterizations in the different approaches. In this paper, we numerically evaluate the consequences of these simplifications and parameterizations. Two sets of simulations were performed. The first set investigates lateral variations in vertical fluxes, which emerge from both homogeneous and heterogeneous porous media, and their importance to capturing evaporation behavior. When evaporation decreases from parts of the heterogeneous soil surface, lateral flow and transport processes in the free flow …

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Lung Protection By Inhalation Of Exogenous Solubilized Extracellular Matrix, Jinglei Wu, Priya Ravikumar, Kytai Truong Nguyen, Connie C.W. Hsia, Yi Hong Feb 2017

Lung Protection By Inhalation Of Exogenous Solubilized Extracellular Matrix, Jinglei Wu, Priya Ravikumar, Kytai Truong Nguyen, Connie C.W. Hsia, Yi Hong

Bioengineering Faculty Publications - Archive

Decellularized extracellular matrix (ECM) contains complex tissue-specific components that work in concert to promote tissue repair and constructive remodeling and has been used experimentally and clinically to accelerate epithelial wound repair, leading us to hypothesize that lung-derived ECM could mitigate acute lung injury. To explore the therapeutic potential of ECM for noninvasive delivery to the lung, we decellularized and solubilized porcine lung ECM, then characterized the composition, concentration, particle size and stability of the preparation. The ECM preparation at 3.2 mg/mL with average particle size <3 μm was tested in vitro on human A549 lung epithelial cells exposed to 95% O2 for 24 hours, and in vivo by tracheal instillation or nebulization into the lungs of rats exposed intermittently or continuously to 90% O2 for a cumulative 72 hours. Our results showed that the preparation was enriched in collagen, reduced in glycosaminoglycans, and contained various bioactive molecules. Particle size was concentration-dependent. Compared to the respective controls treated with cell culture medium in vitro or saline in vivo, ECM inhalation normalized cell survival and alveolar morphology, and reduced hyperoxia-induced apoptosis and oxidative damage. This proof-of-concept study established the methodology, feasibility and therapeutic potential of exogenous solubilized ECM for pulmonary cytoprotection, possibly as an adjunct or potentiator of conventional therapy.

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Quality Assessment Of Adhesive Bond Based On Dielectric Properties, Muthu Ram Prabhu Elenchezhian, Vamsee Vadlamudi, Priyanshu Kumar Banerjee, Chaitanya Dave, Anik Mahmood, Rassel Raihan Jan 2017

Quality Assessment Of Adhesive Bond Based On Dielectric Properties, Muthu Ram Prabhu Elenchezhian, Vamsee Vadlamudi, Priyanshu Kumar Banerjee, Chaitanya Dave, Anik Mahmood, Rassel Raihan

Institute of Predictive Performance Methodologies (IPPM-UTARI)-Archive

Composite materials are widely used in Aerospace, Marine and Automotive structures to reduce weight and increase performance. Adhesive bonding improves the stress distribution between the composite materials / dissimilar materials and ensures a lighter structure than conventional fastener joints. But still there is not much research on the Non-Destructive strength estimation and life prediction, or the damage prognosis of the adhesive bond. One of the main problems when using adhesive bonding is a "kissing bond" which is a weak adhesion bond alternatively called zero volume disbond. Typically, convectional non-destructive methods cannot detect this kissing bond. Broadband Dielectric Spectroscopy, BbDS, is …

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Feature Selection Using An Extended Piecewise Linear Orthonormal Floating Search, Rohit Rawat Dec 2016

Feature Selection Using An Extended Piecewise Linear Orthonormal Floating Search, Rohit Rawat

Electrical Engineering Dissertations - Archive

The piecewise linear orthonormal floating search (PLOFS) is a wrapper method for feature selection that uses a piecewise linear network (PLN) to evaluate candidate subsets. PLOFS has difficulty working on high dimensional data due to overfitting and poor clustering in the PLN subset evaluation function (SEF), and high computational complexity. The presence of noise features aggravates these problems. In order to improve upon the SEF used by PLOFS we mapped the PLN to a SPLN. Then a second order embedded feature selection was used to generate improved distance measure weights. Next, a second order method for positioning center vectors was …

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The Influence Of The Interaction Of Carbon Based Materials With Ionic Liquid On The Tribological Performance Of Lubricating Grease And Oil, Kimaya Vyavhare Dec 2016

The Influence Of The Interaction Of Carbon Based Materials With Ionic Liquid On The Tribological Performance Of Lubricating Grease And Oil, Kimaya Vyavhare

Material Science and Engineering Theses - Archive

Stringent government regulation on environment emissions and demand to develop energy efficient and durable modern mechanical systems has imposed a significant challenge on the lubricant additive manufacturer to develop environment friendly and high performance additives for the lubricating medias like oil and grease. The current industrial additive technology is dominated by phosphorus and sulfur containing the liquid antiwear additive, Zinc dialkyl dithiophosphate and extreme pressure solid additives like Graphite, Molybdenum disulfide. This current additive package possesses harm to the environment and has already met performance limit for applications working under severe operating condition. A proposed solution to combat with this …

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Towards Artificial Proprioception In The Mandibular Full Arch Fixed Implant Prosthesis, Md Abu Hasan Dec 2016

Towards Artificial Proprioception In The Mandibular Full Arch Fixed Implant Prosthesis, Md Abu Hasan

Mechanical and Aerospace Engineering Dissertations - Archive

Full arch fixed implant prosthesis has been one of the most effective treatment modalities for fully edentulous patients over the last few decades. However, due to lack of proprioception occlusal overload is experienced by the prosthesis and its components causing major biomechanical complications such as screw/abutment fracture, framework fracture, and bone loss. The currently available approaches for the overload management rely on external appliances such as an occlusal splint or bite guard and result in occlusal discomfort and high patient dissatisfaction. In this research, an approach to induce artificial proprioception in the full arch fixed implant prosthesis is proposed. However, …

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A Novel Approach For Fabrication Of Single Silicon/Silicon Oxide Nanopillars At Precise Locations, Sravan Chowdary Talasila Dec 2016

A Novel Approach For Fabrication Of Single Silicon/Silicon Oxide Nanopillars At Precise Locations, Sravan Chowdary Talasila

Material Science and Engineering Theses - Archive

Nanopillars exhibit novel electrical and optical properties which could not be obtained from bulk materials. Many of their practical applications would require controlled placement of nanopillars at exact locations. However, precise placement and large scale fabrication of nanopillars have been challenging with conventional fabrication techniques. This thesis investigates a new approach to fabricate nanopillars at exact locations on a large scale. In this approach, fabrication of nanopillars is accomplished by first placing nanoparticles (NP) at exact locations and then performing anisotropic dry etching using these NPs as hard masks, resulting in formation of nanopillars on exact substrate positions. Precise placement …

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A Framework For Employing Femtosatellites In Planetary Science Missions, Including A Proposed Mission Concept For Titan, Tracie Renea Conn Perez Dec 2016

A Framework For Employing Femtosatellites In Planetary Science Missions, Including A Proposed Mission Concept For Titan, Tracie Renea Conn Perez

Mechanical and Aerospace Engineering Dissertations - Archive

Over the past 15 years, there has been a growing interest in femtosatellites, a class of tiny satellites having mass less than 100 grams. Research groups from Peru, Spain, England, Canada, and the United States have proposed femtosat designs and novel mission concepts for them. In fact, Peru made history in 2013 by releasing the first – and still only – femtosat tracked from LEO. However, femtosatellite applications in interplanetary missions have yet to be explored in detail. An interesting operations concept would be for a space probe to release numerous femtosatellites into orbit around a planetary object of interest, …

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Pilot Demonstration Based Reinforcement Learning With Application To Low Speed Airship Control, Onur Daskiran Dec 2016

Pilot Demonstration Based Reinforcement Learning With Application To Low Speed Airship Control, Onur Daskiran

Mechanical and Aerospace Engineering Dissertations - Archive

Designing control systems for airship has unique challenges as compared to conventional aircraft. Highly nonlinear dynamics, different mass/inertia relations, vast uncertainties in the model parameters and underactuation are the main reasons behind this. Airship dynamics is greatly influenced by the variations in the environmental (e.g.,room temperature) and internal (e.g., helium distribution in envelope) factors that can completely change the response characteristics of the blimp and make it infeasible for a model-based controller to perform. On the other hand, a skilled RC pilot can operate the manual flight easily under these conditions. This makes LfD (learning from demonstration) and RL (reinforcement …

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A Stochastic Distributed Control Allocation Method Using Probability Collectives, Christopher Michael Elliot Dec 2016

A Stochastic Distributed Control Allocation Method Using Probability Collectives, Christopher Michael Elliot

Mechanical and Aerospace Engineering Dissertations - Archive

The configuration of the aerospace vehicle of tomorrow marches forward in complexity in step with technological advances in computation, materials, propulsion, and beyond. One of many attributes resulting from this evolution is the multiple effector concept, replacing the traditional aircraft design approach of a dedicated four channel mixer where pitch-roll-yaw-speed is controlled by elevator-aileron-rudder-engine, respectively. Instead, for example on the propulsion front, a distributed suite of smaller engines can substitute the larger power plant and can be used in concert for multiple axis control with both simultaneous, collective thrust for force generation and differential cyclic thrust for moment generation. The …

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System Health Monitoring Using Multiple-Model Adaptive Estimation Techniques, Stanley Ryan Sifford Dec 2016

System Health Monitoring Using Multiple-Model Adaptive Estimation Techniques, Stanley Ryan Sifford

Mechanical and Aerospace Engineering Dissertations - Archive

Monitoring system health for fault detection and diagnosis by tracking system parameters concurrently with state estimates is approached using a new multiple-model adaptive estimation (MMAE) method. This novel method is called GRid-based Adaptive Parameter Estimation (GRAPE). GRAPE expands existing MMAE methods by using new techniques to sample the parameter space. GRAPE expands on MMAE with the hypothesis that sample models can be applied and resampled without relying on a predefined set of models. GRAPE is initially implemented in a linear framework using Kalman filter models. A more generalized GRAPE formulation is presented using extended Kalman filter (EKF) models to represent …

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Numerical Modeling Of Capillary Driven Microfluidic Flow, Md Ashraful Islam Dec 2016

Numerical Modeling Of Capillary Driven Microfluidic Flow, Md Ashraful Islam

Mechanical and Aerospace Engineering Dissertations - Archive

Capillary driven two dimensional axisymmetric and three dimensional asymmetric flow in various microfluidic applications have been modeled and analyzed numerically. The transient Navier-Stokes equations are solved using a finite-difference formulation with a two-step projection method on a fixed grid. The vapor-liquid interface of the micro-droplet is tracked by volume-of-fluid (VOF) and coupled level set and volume-of-fluid (CLSVOF) methods with the surface tension force determined by the continuum surface force (CSF) model. The static contact angle at the three phase contact line has been modeled using wall adhesion scheme within the CSF framework. The developed numerical method for capturing the microfluidic …

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Optimization Of Water And Energy Use In Indirect Evaporative Cooling System By Cfd, Mansi Vijay Prajapati Dec 2016

Optimization Of Water And Energy Use In Indirect Evaporative Cooling System By Cfd, Mansi Vijay Prajapati

Mechanical and Aerospace Engineering Theses - Archive

Data center cooling is becoming important to maintain environmental condition for ITE- Information technology equipment. Conventional evaporative wet cooling media lowers the temperature of the dry bulb temperature of incoming air in which heat transfer to water film and sensibly cool the product air by increasing moisture into air. Wet cooling media technique requires large quantity of clean water, which is reducing area where water is very less. Therefore, indirect evaporative cooling is good alternative. Chiller plants/Indirect Evaporative cooling(IEC) are used as a cooling source for larger data centers as they are more efficient in heat transfer without adding moisture …

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Self-Propulsion Of Liquid Drops Between Non-Parallel Structures At Leidenfrost State, Manjarik Mrinal Dec 2016

Self-Propulsion Of Liquid Drops Between Non-Parallel Structures At Leidenfrost State, Manjarik Mrinal

Mechanical and Aerospace Engineering Theses - Archive

In this work, we explored self-propulsion of a liquid drop between non-parallel structures at a temperature above its Leidenfrost point. A theoretical model was first developed to determine conditions for a drop to move away from the corner of two non-parallel plates. Subsequently, these results were validated by experiments. Finally, in Leidenfrost states, both lyophilic and lyophobic drops were shown to have the same dimensional movements away from the corner of two non-parallel plates.

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Effect Of Pcb Thickness On Solder Joint Reliability Of Qfn Package Under Power And Thermal Cycling, Srinivas Rahul Rao Dec 2016

Effect Of Pcb Thickness On Solder Joint Reliability Of Qfn Package Under Power And Thermal Cycling, Srinivas Rahul Rao

Mechanical and Aerospace Engineering Theses - Archive

Failure analysis and its effects are major reliability concerns in electronic packaging. More accurate fatigue life prediction can be obtained after the consideration of all affecting loads on the electronic devices. When an electronic device is turned off and then turned on multiple times, it creates a loading condition called power cycling. The die is the only heat source causing non-uniform temperature distribution. The solder joint reliability assessment of Quad Flat no-lead Package (QFN) is done through computational method i.e. Finite element analysis (FEA) under two different loads. In this paper, the power cycling and thermal cycling act as a …

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Finite Element Modeling And Stress Distribution Of Unidirectional Composite Materials Under Transversal Loading, Pavan Agarwal Dec 2016

Finite Element Modeling And Stress Distribution Of Unidirectional Composite Materials Under Transversal Loading, Pavan Agarwal

Mechanical and Aerospace Engineering Theses - Archive

Micromechanics of Composites analyze stresses inside any heterogeneous material. These stresses can not only be used for calculation of effective stiffness or compliance, but also for predicting strength and failure modes for these materials. This thesis is devoted to the stress analysis of unidirectional composites by finite element method. The key distinction from other finite element method modeling of the unidirectional composite was that the load on the cell was not prescribed, but was to be calculated taking into account the influence of the closest neighbors of the cell. Transversal unidirectional tension/compression and transversally symmetrical biaxial tension/compression were analyzed. In …

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Non-Invasive Measurement Of The Internal Temperature Of Heat-Generating Bodies, Dean Raymond Anthony Dec 2016

Non-Invasive Measurement Of The Internal Temperature Of Heat-Generating Bodies, Dean Raymond Anthony

Mechanical and Aerospace Engineering Theses - Archive

While the surface temperature of a heat-generating solid body can be measured using a variety of methods, there is a scarcity of techniques that exist for non-invasively measuring the temperature inside the solid body. Internal temperature measurement is very desirable as mere measurement of surface temperature gives no indication of the internal temperature. The highest temperature, usually located at the core of the body, dictates system performance and safety. For example, Li-ion cells provide good energy storage and conversion characteristics, but unfortunately suffer from safety problems related to overheating due to insufficient heat removal during operation. The following thesis presents …

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Remote Patient Monitoring Using Health Bands With Activity Level Prescription, Pranay Shirolkar Dec 2016

Remote Patient Monitoring Using Health Bands With Activity Level Prescription, Pranay Shirolkar

Mechanical and Aerospace Engineering Theses - Archive

With the advent of new commercially available consumer grade fitness and health devices, it is now possible and very common for users to obtain, store, share and learn about some of their important physiological metrics such as steps taken, heart rate, quality of sleep and skin temperature. For devices with this wearable technology, it is common to find these sensors embedded in a smart watch, or dedicated wearable wrist bands such that among other functionalities of a wearable device, it is capable of smartly assisting users about their activity levels by leveraging the fact that these devices can be, and …

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Evaluation Of Water Consumption And Savings Achieved In Datacenters Through Air Side Economization, Ravi Mishra Dec 2016

Evaluation Of Water Consumption And Savings Achieved In Datacenters Through Air Side Economization, Ravi Mishra

Mechanical and Aerospace Engineering Theses - Archive

Recent researches and a few facility owners have focused on eliminating the chiller plant altogether by implementing ‘Evaporative Cooling’, as an alternative or augmentation to compressor-based air conditioning since the energy consumption is dominated by the compressor work (around 41%) in the chiller plant. Because evaporative cooling systems consume water, when evaluating the energy savings potential of these systems, it is imperative to consider not just their impacts on electricity use, but also their impacts on water consumption as well since Joe Kava, Google’s head of data center operations, was quoted as saying that water is the “big elephant in …

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Design Optimization Of Pressure Vessel With Particular Design Considerations, Artik Patel Dec 2016

Design Optimization Of Pressure Vessel With Particular Design Considerations, Artik Patel

Mechanical and Aerospace Engineering Theses - Archive

The pressure vessels in industries are generally designed with a high safety factor because the rupture of a pressure vessel can be extremely dangerous. A vessel that is poorly designed or ineffectively designed to handle high pressure pose a very significant threat to life and property. Because of this, the design and verification of pressure vessels is governed by design codes specified by the ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code. The objective of this thesis work is to minimize the total weight of a real-world pressure vessel structure subjected to stress constraints specified by the …

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Smartwalker – Rolling Walker Instrumentation And Data Acquisition System Development To Monitor, Visualize And Store Rolling Walker Usage Data, Mauricio Jaguan Nieves Dec 2016

Smartwalker – Rolling Walker Instrumentation And Data Acquisition System Development To Monitor, Visualize And Store Rolling Walker Usage Data, Mauricio Jaguan Nieves

Mechanical and Aerospace Engineering Theses - Archive

The Smart Walker project was designed to fill a necessity of monitoring in real time the use of rolling walkers (RW) and study the causes that contribute to the high rate of fallings among its users. The main objectives of the project were to measure the major forces applied by RW users in real time and store it safely for further analysis. The first prototype of the Smart Walker includes the measurement of axial load, torque and gripping force applied on the handle as well as acceleration and rotation angles while it is being used. The axial load was measured …

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Automated System For The Characterization Of The Biomechanical Properties Of Human Soft Tissue, Michael R. Abraham Dec 2016

Automated System For The Characterization Of The Biomechanical Properties Of Human Soft Tissue, Michael R. Abraham

Mechanical and Aerospace Engineering Theses - Archive

Vaginal prolapse is a common condition that affects a large number (approximately 3.3 million in the US) of women, mainly above the age of 50 years. The condition is characterized by the weakening and breakdown of the pelvic support structures such as muscles and connective tissues, leading to the dislodging and prolapse of pelvic organs. Current examinations of the pelvic tissue are manually performed by the physician who assesses its rigidity. These exams are subjective and offer qualitative rather than quantitative results of the state of the pelvic tissue. In this research, a complete system was conceptualized and designed to …

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Automated Lattice Optimization Of Hinge Fitting With Displacement Constraint, Vignesh Dakshnamoorthy Dec 2016

Automated Lattice Optimization Of Hinge Fitting With Displacement Constraint, Vignesh Dakshnamoorthy

Mechanical and Aerospace Engineering Theses - Archive

Additive manufacturing enables fabrication of complex lattice cell structures that are not manufacturable using conventional methods. In order to exploit this lattice capability in structural designs, the effect on structural performance must be considered. This paper uses a goose neck door hinge component to illustrate the effects of lattice structure optimization when stiffness criteria drive part design. The effect of intermediate lattice cell density parameters on resulting lattice configurations from automated lattice structure optimization are studied and it is found that the compliance of the model depends upon the range of intermediate density elements present. The paper then compares the …

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Hole Size, Location Optimization In A Plate And Cylindrical Shell For Minimum Stress Points Interfacing Ansys And Matlab, Soundararaj Thangavel Dec 2016

Hole Size, Location Optimization In A Plate And Cylindrical Shell For Minimum Stress Points Interfacing Ansys And Matlab, Soundararaj Thangavel

Mechanical and Aerospace Engineering Theses - Archive

Discontinuities in Structures are inevitable. One such discontinuity in a plate and cylindrical shell is presence of a hole / holes. In Plates they are used for mounting bolts where as in Cylinder / Pressure Vessel, they provide provision for mounting Nozzles / Instruments. Location of these holes plays a primary role in minimizing the stress acting with out any external reinforcement. In this Thesis work, Location Parameters are optimized for the presence of one or more holes in a plate and cylindrical shell interfacing ANSYS and MATLAB with boundary constraints based on the geometry. Contour plots are generated for …

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A Methodology To Develop A Control System App For Data Center Cooling, Varun Rahul Dec 2016

A Methodology To Develop A Control System App For Data Center Cooling, Varun Rahul

Mechanical and Aerospace Engineering Theses - Archive

DCIM (Data Center Infrastructure Management), are tools that are available in the industry to serve the purpose of controlling different parameters in the data center. But their cost is significantly high. The idea of developing a tool that is easily accessible at highly competitive costs will be the USP for its development. While developing such a software tool, there will be a few points that will be thoroughly emphasized upon: The software tool will have the flexibility of being used on any Operating System. It will be portable i.e. it can be set up on any device that supports a …

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Interactive Analysis Of General Beam Configurations Using Finite Element Methods And Javascript, Christopher G. Hernandez Dec 2016

Interactive Analysis Of General Beam Configurations Using Finite Element Methods And Javascript, Christopher G. Hernandez

Mechanical and Aerospace Engineering Theses - Archive

Advancements in computer technology have contributed to the widespread practice of modelling and solving engineering problems through the use of specialized software. The wide use of engineering software comes with the disadvantage to the user of costs from the required purchase of software licenses. The creation of accurate, trusted, and freely available applications capable of conducting meaningful analysis of engineering problems is a way to mitigate to the costs associated with every-day engineering computations. Writing applications in the JavaScript programming language allows the applications to run within any computer browser, without the need to install specialized software, since all internet …

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