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Dissertations / Theses on the topic 'Mass loading'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Lidström, Viktor. "Mass Loading of Space Plasmas." Thesis, Luleå tekniska universitet, Rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-62094.

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The solar wind interaction with an icy comet is studied through a model problem. A hybrid simulation is done of a box with evenly distributed water ions and protons, where initially the water ions are stationary, and protons move with the speed of the solar wind. The purpose of the thesis is to investigate the interaction between the two species through the convective electric field, and focus is on early acceleration of pick-up ions, and deflection of the solar wind. It is relevant to the cometary case, because it enables study of the physics of this interaction, without involving other mecha

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2

Cowee, Misa Melina. "Mass-loading of the Jovian magnetosphere by Io." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1459915751&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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3

Booker, David Paul Alan. "Secular changes in Earth's shape and surface mass loading." Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1691.

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The changing distribution of surface mass (oceans, atmosphere, hydrology and cryosphere) causes detectable changes to the solid Earth’s shape on timescales from hours to millennia. Transient changes in Earth’s shape can be readily identified, but the tectonic plate movements and Glacial Isostatic Adjustment (GIA) will also influence the secular trends of Earth’s shape. To analyse secular trends in surface mass loading, these two confounding factors must be quantified. A suite of GPS-derived surface loading models, including both secular and transient terms is presented. Raw velocities are esti

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4

SALVI, Jonathan. "Optimisation of Tuned Mass Damper Devices Towards Structural Vibration Reduction: Theoretical Settings and Numerical Analyses." Doctoral thesis, Università degli studi di Bergamo, 2014. http://hdl.handle.net/10446/224063.

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The present doctoral thesis concerns theoretical concepts and numerical studies on the optimisation of Tuned Mass Damper (TMD) devices towards the control and reduction of structural dynamic responses, with specific reference to the context of civil and seismic engineering. The fundamental background of the optimisation of the TMD parameters, also called tuning, is presented first in its main features, based on reference to the mainstream literature, and in the assessing the relevance of the structural properties and of the role of the characteristics of the external excitation. A comprehensi

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5

Nichol, Eric Andrew. "Experimental behaviour of inelastic mass-asymetric multi-storey buildings under seismic loading." Thesis, University College London (University of London), 1999. http://discovery.ucl.ac.uk/1318017/.

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Buildings with non coincident centres of mass and stiffness respond in both translation and rotation during seismic ground excitations. This translational and rotational interaction (torsional coupling) can lead to excessive forces in some structural members. This could possibly lead to structural failure if the building is not properly designed to accommodate this response interaction. Previous elastic analytical studies have determined the structural parameters that govern the degree of torsional coupling. However, the parameters found influencing torsional coupling during inelastic response

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6

Sandhu, Jasmine Kaur. "A statistical study of magnetospheric plasma mass loading using the Cluster spacecraft." Thesis, University of Leicester, 2016. http://hdl.handle.net/2381/37954.

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Using Cluster data, from the WHISPER and CODIF instruments, for the interval spanning 2001 { 2012, empirical models describing the electron density, average ion mass, and plasma mass density distribution along closed geomagnetic field lines are determined. The models represent the region spanning 5:9 ≤ L < 9:5, with dependences on L shell and MLT (Magnetic Local Time) included. An average mass density model, describing spatial variations for typical quiet time conditions, was produced by independently modelling field-aligned variations in the electron density and average ion mass, and combinin

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7

Andersson, J. Christer. "Rock mass response to coupled mechanical thermal loading : Äspö pillar stability experiment, Sweden /." Stockholm : Division of Soil and Rock Mechanics, Department of Civil and Architectural Engineering, Royal Institute of Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4287.

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8

Andersson, J. Christer. "Rock Mass Response to Coupled Mechanical Thermal Loading : Äspö Pillar Stability Experiment, Sweden." Doctoral thesis, KTH, Jord- och bergmekanik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4287.

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The geological disposal of nuclear waste, in underground openings and the long-term performance of these openings demand a detailed understanding of fundamental rock mechanics. A full scale field experiment: Äspö Pillar Stability Experiment was conducted at a depth of 450 m in sparsely fractured granitic rock to examine the rock mass response between two deposition holes. An oval shaped tunnel was excavated parallel to the σ3 direction to provide access to the experiment and also provide elevated stress magnitudes in the floor. In the tunnel floor two 1.75-m diameter 6-m deep boreholes were ex

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9

Nortje, Desiree. "The anti-dynamic tube in mass flow silos /." Connect to this title, 2002. http://theses.library.uwa.edu.au/adt-WU2005.0042.

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10

Nortje, Desiree. "The anti-dynamic tube in mass flow silos." University of Western Australia. School of Civil and Resource Engineering, 2003. http://theses.library.uwa.edu.au/adt-WU2005.0042.

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Storage of granular solids in silos has been the practice for many years. Engineers have been faced with the problem of making the silos empty more efficiently and minimising the forces acting on the walls of the silo during material discharge. To this end the anti-dynamic tube was invented. The tube has a smaller diameter than the silo and consists of several portholes along its height and around its circumference. When the discharge gate of the silo is opened the granular material enters the tube through the portholes, flows down the inside of the tube and exits the silo through the discharg

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11

McDonald, Benjamin. "A novel approach to the identification of osteoarthritis biomarkers using mass-spectrometry based proteomics." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/212037/1/Benjamin_McDonald_Thesis.pdf.

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This research explored the relationship between joint loading and the expression of osteoarthritis related biomarkers in subjects at risk of developing the disease. The aim of the project was to determine whether there are certain biomarkers in early arthritis that may be useful targets for early diagnosis and management. The outcome was that while some biomarkers showed promise, more work is required to determine their significance.

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12

Liu, Albert Darien. "THE EFFECT OF SENSOR MASS, SENSOR LOCATION, AND DELAMINATION LOCATION OF DIFFERENT COMPOSITE STRUCTURES UNDER DYNAMIC LOADING." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/917.

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This study investigated the effect of sensor mass, sensor location, and delamination location of different composite structures under dynamic loading. The study pertains to research of the use of accelerometers and dynamic response as a cost-effective and reliable method of structural health monitoring in composite structures. The composite structures in this research included carbon fiber plates, carbon fiber-foam sandwich panels, and carbon-fiber honeycomb sandwich panels. The composite structures were manufactured with the use of a Tetrahedron MTP-8 heat press. All work was conducted in the

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13

Husovitz, Kari J. "The Influence of Hydraulic Loading Rate on Nitrification Performance in a Two-Stage Biological Aerated Filter Pilot Plant." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/40626.

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A two-stage (carbon oxidation stage one, ammonia oxidation stage two) biological aerated filter was operated for 10 months on-site at a domestic wastewater treatment plant. Over the study, the system was operated at different hydraulic loading rates that resulted in a range of applied organic and ammonia mass loadings. Performance was monitored regularly for water quality parameters in the effluent and along the length of the reactors. It was found that nitrification performance was significantly influenced by organic loading rates greater than 1.2 kg cBOD5/m3-d. Additional experiments were co

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14

Nielsen, Mark. "Design of aerospace laminates for multi-axis loading and damage tolerance." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760971.

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Acknowledging the goal of reduced aircraft weight, there is a need to improve on conservative design techniques used in industry. Minimisation of laminate in-plane elastic energy is used as an appropriate in-plane performance marker to assess the weight saving potential of new design techniques. MATLAB optimisations using a genetic algorithm were used to find the optimal laminate variables for minimum in-plane elastic energy and/or damage tolerance for all possible loadings. The use of non-standard angles was able to offer equivalent, if not better in-plane performance than standard angles, an

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15

Seshadri, Satyanarayanan. "Solid particle transport behavior and the effect of aerosol mass loading on performance of a slit virtual impactor." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/538.

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Transport of solid particles in a slit virtual impactor has been analyzed using visualization techniques. Particle trajectories were observed using laser-induced fluorescence of monodisperse particles seeded in the virtual impactor flow. It was observed from these trajectories that for smaller inertia particles essentially followed the flow streamlines, whereas higher inertia particles tend to deflect from their initial streamlines. These transport characteristics were used to determine particle collection efficiency curves, and the percentage of defect particle transmission, particles transmi

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16

Omidvar, Pourya. "Wave loading on bodies in the free surface using smoothed particle hydrodynamics (SPH)." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/wave-loading-on-bodies-in-the-free-surface-using-smoothed-particle-hydrodynamics-sph(9d744522-6ecf-4496-a784-4ab08292e344).html.

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This thesis investigates wave loading on bodies in the free surface using smoothed particle hydrodynamics (SPH). This includes wave loading on fixed bodies, waves generated by heaving bodies in still water and the heave response of a body in waves, representing a wave energy device. SPH is a flexible Lagrangian technique for CFD simulations, which in principle applies to steep and breaking waves without special treatment allowing us to simulate highly nonlinear and potentially violent flows encountered in a real sea. However few detailed tests have been undertaken even with small amplitude wav

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17

Wang, Miaoyu. "A SILICON SECONDARY PARTICLES FOR ANODES OF LITHIUM-ION BATTERIES." University of Akron / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=akron1591023621201677.

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18

PUREKAR, DHANESH MADHUKAR. "A STUDY OF MODAL TESTING MEASUREMENT ERRORS, SENSOR PLACEMENT AND MODAL COMPLEXITY ON THE PROCESS OF FINITE ELEMENT CORRELATION." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132015246.

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19

Mandalaparthi, Likhitha. "numerical problems in the calculation of electric field and charge density profiles for mass impregnated non-draining hvdc cables subjected to fast polarity reversals." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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The goal of this simulation thesis is to present a tool for studying and eliminating various numerical problems observed while analyzing the behavior of the MIND cable during fast voltage polarity reversal. The tool is built on the MATLAB environment, where several simulations were run to achieve oscillation-free results. This thesis will add to earlier research on HVDC cables subjected to polarity reversals. Initially, the code does numerical simulations to analyze the electric field and charge density behavior of a MIND cable for certain scenarios such as before, during, and after pola

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20

Kotzeva, Lilia Dimitrova. "Copper and nickel toxicity and metal loading capacity of larval haemolymph in Aedes aegypti, using a novel small volume laser ablation inductively coupled plasma mass spectrometry method." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44331.

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Much of the current literature focuses on fish as models for waterborne metal toxicology, yet few studies examine invertebrate or insect metal toxicology. The present study examined copper and nickel waterborne toxicity in Aedes aegypti larvae. The 24-hour LC₅₀ for copper in fouth instar larval Aedes aegypti was 2.28 mmol L-¹ (95% C. I. 1.97, 2.67) and 4.63 mmol L-¹ (95% C. I. 4.25, 5.05) in the unfed and fed treatments respectively. The 24-hour LC₅₀ for nickel in fouth instar larval Aedes aegypti was 17.2 mmol L-¹ (95% C. I. 15.58, 18.66) and 27.2 mmol L-¹¹ 1 (95% C. I. 25.49, 29.11) in the u

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21

Lambert, Conor. "A comparison of the bone response to impact loading and resistance training in young adult women: The OPTIMA-Ex trial." Thesis, Griffith University, 2019. http://hdl.handle.net/10072/389686.

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Many factors are linked to developing osteoporosis; however, the inadequate accumulation of peak bone mass prior to skeletal maturity is considered an important factor. As peak bone mass is often achieved by the end of the third decade, young adulthood provides an important and possibly final opportunity for its augmentation. Physical activity has been proposed as one of the most effective strategies to improve bone mass, however, the bone response to physical activity is highly dependent on the nature of the loads imposed. The most osteogenic loads are those that induce high magnitude bone st

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22

Zakhem, Eddy. "Relations entre le niveau de performance physique, le niveau d'activité physique usuel, les apports nutritionnels, les caractéristiques anthropométriques, le sommeil et les paramètres osseux chez les jeunes adultes sains." Thesis, Littoral, 2015. http://www.theses.fr/2015DUNK0417.

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Le but de cette thèse était d'explorer les relations entre le niveau de performance physique, le niveau d'activité physique usuel, les apports nutritionnels, les caractéristiques anthropométriques et le sommeil d'un côté et la densité minérale osseuse, la géométrie osseuse de la hanche et le trabecular bone score (TBS) de l'autre chez les jeunes adultes Libanais et Français agés de 18 à 35 ans. Dans un premier temps, nous avons mené 10 études préliminaires chez les jeunes adultes Libanais. Ces études ont montré que le poids, la masse maigre, la pratique d'activités physiques à impacts, la forc

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23

Siegel, Kristy. "Fate of polybrominated diphenyl ethers during wastewater treatment process producing reclaimed water." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4943.

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Polybrominated diphenyl ethers (PBDEs), flame retardants, have been applied to consumer goods, such as furniture, electrical devices, textiles, and appliances for decades. Due to their physico-chemical properties, PBDEs are semi-volatile and easily leach off the consumer good during aging, stress, or normal wear and tear of the good. Once airborne, they pose an environmental health threat because they can adsorb onto dust particles, soil, or other particulates that can be inhaled, ingested, or come into contact with the dermal layer. Additionally, PBDEs have a molecular structure similar to ot

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24

Yapar, Ozgur. "Analysis Of Earthquake Loading, Wind Loading And Ice Loading Effects On Guyed Masts." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/2/12612137/index.pdf.

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Guyed masts are special type of structures that are widely used in the telecommunication industry. In the past, there was no guideline for seismic design of these types of structures in the corresponding design codes. On the other hand, in the latest &ldquo<br>G&rdquo<br>revision of the ANSI/TIA-EIA code there is a comprehensive design criterion for the seismic design of the guyed masts. However, during the design process of these structures the most common approach is to ignore the effect of seismic loading and use only the internal forces developed from the wind load and ice load analysis. I

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25

Alexa, Martin. "Vliv mnohonásobného zatěžování na vybrané parametry lehkého betonu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371809.

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The diploma thesis deals with the observation of the values of selected parameters (especially the static modulus of elasticity) of light-weight concrete in compression before and after multiple cyclic loading. The deformation of test specimens during multiple cyclic loading were measured with resistive strain gauges. Test specimens (cylinders with a diameter of 150 mm and height of a 300 mm) were cyclically loaded and up to 4 500 loading cycles were performed. The aim of this thesis is assessment changes in the values of static modulus of elasticity depending on the number of loading cycles.

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26

Wagner, Erika Brown. "Musculoskeletal adaptation to Partial Weight Suspension : studies of Lunar and Mars loading." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42203.

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Thesis (Ph. D.)--Harvard-MIT Division of Health Sciences and Technology, 2007.<br>Includes bibliographical references.<br>As human spaceflight extends in both duration and scope, it is critical to better understand the physiologic effects of this novel environment. In the weight bearing structures of the body, bone loss and muscle atrophy far in excess of age-related declines are hallmarks of microgravity adaptation. However, while the physiological effects of such disuse unloading are well-described, the effects of partial weight bearing, such as expected on the moon (16% of Earth's gravity)

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27

Du, Fang. "Gene flow - dependent introgression and species delimitation : evidence from mtDNA & cpDNA variation in spruce." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14179/document.

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L'introgression est un processus fréquent et qui a d'importantes conséquences évolutives. L'objectif de ce travail était de tester un modèle neutre d'introgression chez des épicéas du Plateau tibétain et des régions voisines. Le travail a permis de mettre en évidence que la direction de l'introgression pouvait être prédite par la dynamique passée des populations d'arbres, et que l'importance de cette introgression était inversement proportionnelle à l'intensité des échanges génétiques au sein de l'espèce invasive, grâce à la comparaison de la structure génétique basée sur des marqueurs chlorop

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28

Літвін, Роман Григорович. "Покращання експлуатаційних властивостей трансмісії автомобіля застосуванням двомасового маховика". Diss., Національний університет "Львівська політехніка", 2020. https://ena.lpnu.ua/handle/ntb/56117.

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29

Ulmer, Kristin Jane. "Development of a Simplified Performance-Based Procedure for Assessment of Liquefaction Triggering Using Liquefaction Loading Maps." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5600.

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Seismically-induced liquefaction has been the cause of significant damage to infrastructure and is a serious concern in current civil engineering practice. Several methods are available for assessing the risk of liquefaction at a given site, each with its own strengths and limitations. One probabilistic method has been shown to provide more consistent estimates of liquefaction risk and can be tailored to the specific needs of a given project through hazard-targeted (i.e. based on return periods or likelihoods) results. This type of liquefaction assessment is typically called “performance-ba

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30

Magnusson, Mikael S. "Testing and Evaluation of Interfibre Joint Strength under Mixed-Mode Loading." Licentiate thesis, KTH, Hållfasthetslära (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116700.

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The failure properties of interfibre bonds are the key for the build-up of strength in fibrous materials such as paper and paperboard. In order to tailor the properties of such materials by chemical or mechanical treatments and to learn how such modifications influence the properties at a microscopic level, direct measurement of individual fibre--fibre crosses are typically performed. However, the state of loading in the interfibre joint, in testing of individual fibre--fibre crosses, is in general very complex and a greater understanding for how to evaluate the mechanical properties of interf

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31

Error, Braden Michael. "Development of a Simplified Performance-Based Procedure for the Assessment of Liquefaction-Induced Settlements Using Liquefaction Loading Maps." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/7210.

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Liquefaction-induced settlement can cause extensive damage to infrastructure. Quantifying the amount of settlement that may occur after an earthquake is crucial to seismic design. The Pacific Earthquake Engineering Research (PEER) Center developed performance-based earthquake engineering (PBEE) as a probabilistic framework to characterize the risks associated with a seismic event. When applied to liquefaction-induced settlement, the PBEE framework provides a more complete and accurate representation of liquefaction hazard than other more conventional evaluation methods. Performance-based engi

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32

Alletto, Michael [Verfasser]. "Numerical Investigation of the Influence of Particle-Particle and Particle-Wall Collisions in Turbulent Wall-Bounded Flows at High Mass Loadings / Michael Alletto." Hamburg : Helmut-Schmidt-Universität, Bibliothek, 2014. http://d-nb.info/1052225020/34.

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Motte, Naren. "A STUDY TO EVALUATE NON-UNIFORM PHASE MAPS IN SHAPE MEMORY ALLOYS USING FINITE ELEMENT METHOD." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3986.

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The unique thermo-mechanical behavior of Shape Memory Alloys (SMAs), such as their ability to recover the original shape upon heating or being able to tolerate large deformations without undergoing plastic transformations, makes them a good choice for actuators. This work studies their application in the aerospace and defense industries where SMA components can serve as release mechanisms for gates of enclosures that have to be deployed remotely. This work provides a novel approach in evaluating the stress and heat induced change of phase in a SMA, in terms of the transformation strain tensor.

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34

Adamson, Louise. "An investigation into the cement content of stabilised pavement." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/2366.

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Motor vehicles dominate Australia's transport system, for both travel and freight; consequently the road network in Australia is of critical importance to the social and economic welfare of our nation and to national and regional growth. About 90% of this network is constructed of compacted unbound granular materials with thin bituminous seals. Many of these granular pavements were not designed to carry the current traffic volumes or increased axle mass loadings; and are therefore highly likely to require some form of remedial works in the near future.Stabilisation with cement is becoming incr

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35

Ching-Hung, Jian, and 簡慶宏. "EFFECTIVE FOOT MASS DURING IMPACT LOADING OF DROP JUMP." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/86352440572792110164.

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碩士<br>國立臺灣體育運動大學<br>體育研究所<br>99<br>The main purpose of this study is to discuss the variable traits of effective foot mass during loading phase at different drop jump height, and to analyze the variation of kinetic and kinematic paraments at each phases of drop jump. The subjects of this study are college students majoring in physical education (average height 167.3 ± 5.4 cm, average weight 65.1 ± 5.5 kg, average age 21.7 ± 1.9 yrs), and were requested to drop jump at the height of 20cm, 40cm, 60cm, using Kistler 9260AA6 forceplate (1000Hz) and Vicon MXF-40 infrared video camera (200Hz) to col

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Esmaeili, Sara. "Comprehensive Simulation Assessment of Nitrate Mass Loading to Groundwater from Agricultural Landscapes." Thesis, 2013. http://hdl.handle.net/10012/7853.

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The goal of this research was to evaluate the ability of two agricultural system models, the Root Zone Water Quality Model (RZWQM) and the Coupled Model (CoupModel), to simulate temporal nitrate mass loading below the root zone. To tackle this evaluation effort the following research objectives were developed: (1) determine the sensitivity of key model output responses for a selected agricultural system model to the variability of input parameters over different vertical-spatial and temporal domains; (2) compare and elucidate the ability of two agricultural system models to simulate water flux

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Liang, Jun Ming, and 梁鈞銘. "Study of Phase Shift on SH-SAW with Fluid Loading: Mass Loading and Viscosity by Method of Coupling of Modes." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/17291215523657855861.

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碩士<br>國立中正大學<br>機械系<br>93<br>Surface acoustic wave devices have been widely applied to the fields of communications and sensing mechanisms. Traditional surface acoustic wave devices are not suited for liquid detectors due to high acoustic energy loss as placing liquid on the propagating path of surface acoustic wave. Shear horizontal surface acoustic wave devices are suited for liquid detectors by guiding the wave in the specific direction of polarization. So far most of the research has been done on experimental investigation on the frequency shift with respect to time; no theoretical model h

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Fu, Chi-Cheng, and 傅琪鉦. "Measurement of Surface Mass and Liquid Loading by QCM with Dual Frequency Method." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/09788427893439053374.

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碩士<br>國立臺灣大學<br>醫學工程學研究所<br>91<br>Quartz crystal microbalance (QCM) is commonly used for biological measurements in liquid, which is with a challenge because multiple effects occur simultaneously. The total frequency change measured by QCM is resulted from the mass and liquid loading on the surface. The mass loading reflects the change of surface mass caused by bio-particles interaction, and the liquid loading reflects the change in liquid density and viscosity. The measurement accuracy of mass loading effect is interfered by added samples, which change liquid conditions, and this draws the li

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Foreman, Richard J. "Mass loading and Stokes number effects in steady and unsteady particle-laden jets." Thesis, 2008. http://hdl.handle.net/2440/59015.

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In single phase, steady, turbulent axisymmetric jets, the time-averaged velocity field can be characterised by the decay in centreline velocity and increased spread with increasing distance from the jet orifice. In a two-phase or ‘particle-laden’ jet, the particles will modulate the jet turbulence and exchange momentum with the gas phase. Consequently, these effects reduce both the centreline velocity decay and spreading rates with respect to the single-phase jet. Empirical exponential scaling factors were found by previous authors to describe the reduced centreline decay and spreading rates w

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40

Foreman, Richard J. "Mass loading and Stokes number effects in steady and unsteady particle-laden jets." 2008. http://hdl.handle.net/2440/59015.

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In single phase, steady, turbulent axisymmetric jets, the time-averaged velocity field can be characterised by the decay in centreline velocity and increased spread with increasing distance from the jet orifice. In a two-phase or ‘particle-laden’ jet, the particles will modulate the jet turbulence and exchange momentum with the gas phase. Consequently, these effects reduce both the centreline velocity decay and spreading rates with respect to the single-phase jet. Empirical exponential scaling factors were found by previous authors to describe the reduced centreline decay and spreading rates w

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41

Wu, Shiuann-Hsiang, and 吳鉉祥. "Time History Response of Long-Span Bridges with Tuned Mass Dampers under Wind Loading." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/18920581684528205737.

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碩士<br>淡江大學<br>土木工程學系<br>87<br>The developments of bridge construction techniques and the improvements of high strength materials have made the modern bridges designed and built towards long spans with slender sections. Because these types of bridges are more flexible than the other types, they are more susceptible to wind excitation and need some devices to control the aerodynamic effects. Among these devices, tuned mass dampers (TMDs) have been installed in some existed bridges, and their performance is proven to be effective against wind-induced vibrations. However, previous studi

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Riaz, ul Haq Muhammad. "Contributions from Healthcare Facilities to the overall Mass Loading of Pharmaceuticals on Wastewater Treatment Plants." Thesis, 2010. http://hdl.handle.net/10012/5634.

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The presence of human pharmaceuticals in the aquatic environment is now becoming a well-established fact. The identified problems associated with their presence include the fact that these compounds are biologically active, some of them are toxic in nature, and a number of compounds have potential to foster and maintain drug resistant microorganisms. They are discharged into the aquatic environment from a variety of sources, but mainly by the excretion of incompletely metabolized pharmaceuticals by individuals into the wastewater. This situation makes finding a source-control strategy difficul

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Chen, Chun-Kuang, and 陳俊光. "Phase compensated Quartz Crystal Microbalance for Simultaneous Measurement of Bio-mass loading and liquid damping." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/26912867652213045630.

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博士<br>臺灣大學<br>應用力學研究所<br>96<br>The application of Quartz Crystal Microbalance (QCM) in the liquid phase condition usually subjected to two major problems. The first one is the extra damping in liquid phase that causes the mechanical quality factor drop to a level that may induce unstable oscillation frequency. The second one is the self oscillation zero phase condition will be lost due to the shunt capacitance effect. In this study, a novel phase compensated quartz crystal oscillation circuit is proposed and will try to resolve these problems. According to the traditional theoretical analys

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CHAI, CHENG-RON, and 蔡鎮隆. "The Implementation of Controllers Applied to Variable Loading Position Control in a Hydraulic Servos'' Mass-Spring System." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/43973516428613199881.

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Chen, Pei-Chun, and 陳姵君. "Development and application of a 3D-printed cell for loading a spray-brush in electrospray ionization/mass spectrometry." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/95074434224746888028.

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碩士<br>國立臺灣師範大學<br>化學系<br>103<br>A novel type of electro-spray ionization technique for mass spectrometer measurement was developed by using a writing brush which can be loaded on a 3D-printed plastic cell. It can not only stabilize the spray phenomenon but also provide to the long time mass spectrometer measurement. The cotton can transfer the volatile solvent to the brush tip by capillary phenomenon. Electrically spraying can be done by applying high voltage at the brush tip. The result of this electro-spray method is better than traditional chromatography paper in PS-MS because the brush tip

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Liu, Jen-Ying, and 劉人瑛. "Development and application of a 3D-printed kit for loading a spray-brush in electrospray ionization/mass spectrometry." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/32420646564098457533.

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碩士<br>國立臺灣師範大學<br>化學系<br>104<br>A novel type of a sampling/ionization kit was successfully developed for use in electrospray ionization/mass spectrometry, for the first time. Based on the similar theory with paper-spray mass spectrometry, the analytes were evaporated and then ionized through the surface of a small nylon writing-brush. A part of the nylon writing-brush was embedded inside a 3D-printed plastic cell, in which methanol was provided for rinsing the brush by means of capillary action. Although various brushes were examined, we finally selected nylon fiber in this study. This is beca

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Martens, Hilary Rose. "Using Earth Deformation Caused by Surface Mass Loading to Constrain the Elastic Structure of the Crust and Mantle." Thesis, 2016. https://thesis.library.caltech.edu/9666/1/Martens_Hilary_2016.pdf.

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Surface mass loads come in many different varieties, including the oceans, atmosphere, rivers, lakes, glaciers, ice caps, and snow fields. The loads migrate over Earth's surface on time scales that range from less than a day to many thousand years. The weights of the shifting loads exert normal forces on Earth's surface. Since the Earth is not perfectly rigid, the applied pressure deforms the shape of the solid Earth in a manner controlled by the material properties of Earth's interior. One of the most prominent types of surface mass loading, ocean tidal loading (OTL), comes from the periodic

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Héroux, MARTIN. "The effect of contraction type and intensity, mass loading and visual feedback on wrist tremor in individuals with essential tremor." Thesis, 2008. http://hdl.handle.net/1974/6894.

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Objectives: Determine the effect of contraction type and intensity, inertial loading, and visual feedback on various measures of hand tremor in subjects with essential tremor. Methods: Study 1. Twenty-three ET subjects and 22 controls held their hand in an outstretched position while supporting various submaximal loads (no-load, 5%, 15% and 25% 1-repetition maximum). Hand postural tremor and wrist extensor neuromuscular activity (EMG) were recorded. Study 2. Twenty-one ET subjects and 22 controls applied isometric wrist extension contractions with and without visual feedback. Various subma

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Wei, Xuan. "Printable 3D MoS2 Architected Foam with Multiscale Structural Hierarchies for High-rate, High-capacity and High-mass-loading Energy Storage." Diss., 2021. http://hdl.handle.net/10754/671245.

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Materials with three-dimensional (3D) hierarchical architectures exhibit attractive mechanical, energy conversion and thermal radiative cooling properties not found in their bulk counterparts. However, implementation of hierarchically structured 3D transition metal dichalcogenides (TMDs) is widely deemed not possible, by the lack of manufacturing solutions that overcome the hierarchy, quality, and scalability dilemma. Here we report dewetting-driven destabilization (DDD) process that enables simple, template-free, high throughput printing of 3D architected MoS2 Foam with hierarchy spanning sev

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Madry, William Lansing. "Modeling the generation, transport, and microphysical processes of the sea salt aerosol: Mass loading and optical thickness comparisons in a three-dimensional model." Thesis, 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3354611.

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