Дисертації з теми "Method of detecting influences"
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1
Кущ, Віталій Сергійович. "Метод підбору та виявлення впливів релаксуючих картин для коригування психофізіологічного стану людини". Master's thesis, КПІ ім. Ігоря Сікорського, 2020. https://ela.kpi.ua/handle/123456789/39383.
Повний текст джерелаАнотація:
Робота містить 70 сторінок, 25 рисунківта 19 таблиць. Було використано 12 джерел.
Мета роботи: підвищити швидкість та ефективність дослідження та коригування психофізіологічного стану людини за рахунок розробки методу підбору та виявлення впливів релаксуючих картин для коригування психофізіологічного стану людини.
Проведено огляд основних положень проведення досліджень, збору даних та коригування психофізіологічного стану людини. Описано основні проблеми обробки зібраних даних для аналізу, підбору релаксуючих картин та визначено необхідність у розробці методів для підбору та визначення впливів на психофізіологічний стан релаксуючих картин. Запропоновано метод підбору релаксуючих картин для коригування психофізіологічного стану людини на основі нейронних мереж. Застосування запропонованого методу дозволяє подати на вхід набір параметрів: кольорову преференцію, день народжень, суб’єктивні відчуття та отримати на виході релаксуючу картину для проведення сеансів коригування психофізіологічного стану. Запропоновано метод виявлення впливів на психофізіологічний стан людини, який дозволяє, за рахунок гнучкого механізму конфігурації побудови графіків, будувати різноманітні параметри дослідження психофізіологічного стану людини та виявляти їх залежності та впливи на людину. Розроблено програмне забезпечення запропонованих методів підбору та виявлення впливів релаксуючих картин на стан людини, яке збільшує ефективність роботи психологів з дослідження психофізіологічного стану людини, за рахунок швидких та точних обчислень. Розроблено стартап-проект програмного забезпечення та проведено аналіз ринку, потенційних клієнтів, з якого видно, що ринок поки вільний від аналогів такого продукту, але має у ньому потребу.The work contains 70 pages, 25 figures, and 19 tables. 12 sources have been used. Goal: to increase the speed and efficiency of research and adjustment of the psychophysiological state of a person by developing a method of matching and detecting influences of relaxing pictures for human psychophysiological state adjustment. A review of the main provisions of research, data collection, and adjustment of the psychophysiological state of humans. The main problems of processing the collected data for the analysis, matching of relaxing pictures are described and the necessity in the development of methods for matching and detecting influences on a psychophysiological condition of relaxing pictures is defined. A method of matching relaxing pictures for correction of the psychophysiological state of a human on the basis of neural networks is offered. The application of the proposed method allows you to submit a set of parameters: color preference, birthday, favorite color, subjective feelings and get a relaxing picture for sessions to correct the psychophysiological state. A method for detecting influences on the psychophysiological state of a person is proposed, which allows, due to a flexible configuration mechanism for plotting, to build various parameters of research of the psychophysiological state of a person and identify their dependencies and influences on a person. The software of the offered methods of matching and detecting influences of relaxing pictures on a condition of the human which increases the efficiency of work of psychologists on the research of a psychophysiological condition of the person is developed. A software startup project has been developed and an analysis of potential customers and the market has been conducted, which shows that the market is still free from analogs of such a product, but needs it.
2
Elva, Rochelle. "Detecting Semantic Method Clones in Java Code using Method IOE-Behavior." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5731.
Повний текст джерелаАнотація:
The determination of semantic equivalence is an undecidable problem; however, this dissertation shows that a reasonable approximation can be obtained using a combination of static and dynamic analysis. This study investigates the detection of functional duplicates, referred to as semantic method clones (SMCs), in Java code. My algorithm extends the input-output notion of observable behavior, used in related work [1, 2], to include the effects of the method. The latter property refers to the persistent changes to the heap, brought about by the execution of the method. To differentiate this from the typical input-output behavior used by other researchers, I have coined the term method IOE-Behavior; which means its input-output and effects behavior [3]. Two methods are defined as semantic method clones, if they have identical IOE-Behavior; that is, for the same inputs (actual parameters and initial heap state), they produce the same output (that is result- for non-void methods, and final heap state). The detection process consists of two static pre-filters used to identify candidate clone sets. This is followed by dynamic tests that actually run the candidate methods, to determine semantic equivalence. The first filter groups the methods by type. The second filter refines the output of the first, grouping methods by their effects. This algorithm is implemented in my tool JSCTracker, used to automate the SMC detection process. The algorithm and tool are validated using a case study comprising of 12 open source Java projects, from different application domains and ranging in size from 2 KLOC (thousand lines of code) to 300 KLOC. The objectives of the case study are posed as 4 research questions: 1. Can method IOE-Behavior be used in SMC detection? 2. What is the impact of the use of the pre-filters on the efficiency of the algorithm? 3. How does the performance of method IOE-Behavior compare to using only input-output for identifying SMCs? 4. How reliable are the results obtained when method IOE-Behavior is used in SMC detection? Responses to these questions are obtained by checking each software sample with JSCTracker and analyzing the results. The number of SMCs detected range from 0 45 with an average execution time of 8.5 seconds. The use of the two pre-filters reduces the number of methods that reach the dynamic test phase, by an average of 34%. The IOE-Behavior approach takes an average of 0.010 seconds per method while the input-output approach takes an average of 0.015 seconds. The former also identifies an average of 32% false positives, while the SMCs identified using input-output, have an average of 92% false positives. In terms of reliability, the IOE-Behavior method produces results with precision values of an average of 68% and recall value of 76% on average. These reliability values represent an improvement of over 37% (for precision) of the values in related work [4]. Thus, it is my conclusion that IOE-Behavior can be used to detect SMCs in Java code with reasonable reliability.Ph.D.
Doctorate
Computer Science
Engineering and Computer Science
Computer Science
3
Kalmar, Gabriel Bela. "A non-radioactive method of detecting nucleic acids." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/25896.
Повний текст джерелаАнотація:
Monoclonal antibodies (MCAs) specific for iodinated cytidine were produced and characterized for their possible application in the development of a serological, non-radioactive assay for nucleic acids. The method requires the modification of single-stranded ribonucleic acid (ss-RNA) by addition of an iodine to the C-5 position of cytidine via the Commerford reaction.. The level of iodination was followed by ultraviolet (UV) spectroscopy and X-ray diffraction (XRF) and was found to be higher for polyC than for cellular RNA or ss-RNA of southern bean mosaic and cowpea chlorotic mottle virus. No evidence was obtained for iodination of double-stranded (ds) RNA of turnip yellow mosaic virus. Only one hybridoma, (Rl), of 2,500, tested secreted MCAs specific for iodinated cytidine. The specificity and affinity of this MCA for iodinated and non-iodinated synthetic polynucleotides and iodinated cellular ss-RNA were assessed by solid-phase and inhibition assays, using the enzyme-1 inked immunosorbent assay (ELISA). Seven other hybridomas produced MCAs with varying specificities for iodinated nucleotide-carrier combinations. 'The binding of MCA Rl to iodocytidine-carrier was inhibited by iodocytidine or iodocytidine-5'-phosphate and by adenosine or adenosine-5'-phosphate (20 and 200 times less so, respectively) but not by guanosine, thymidine, and uridine, or their monophosphates. As little as 5 ng of iodocytidine-carrier bound to a nitrocellulose membrane could be detected by MCA Rl in an immune-blot assay whereas no reaction was observed with 1-1000 ng of cytidine-carrier. The lower levels of detection for iodinated cellular nucleic acid and iodinated polyC were 50 and 25 ng, respectively, in the same assay. The method may have applications in the development of a serological, non-radioactive assay for nucleic acids.Land and Food Systems, Faculty of
Graduate
4
Watson, Garrett (Garrett A. ). "A method for detecting nonequilibrium dynamics in active matter." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120209.
Повний текст джерелаАнотація:
Thesis: S.B., Massachusetts Institute of Technology, Department of Physics, 2018.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 55-56).
Active force generation is an important class of out-of-equilibrium activity in cells. These forces play a crucial role in vital processes such as tissue folding, cell division and intracellular transport. It is important to determine the extent of such nonequilibrium activity during cellular processes to understand cell function. Here we present a framework for measuring nonequilibrium activity in biological active matter using time reversal asymmetry based on the Kullbeck-Leibler Divergence (KLD), also known as relative entropy. We estimate the KLD from a stationary time series using a k-nearest neighbors estimator, comparing the time-forwards process to the time-reversed process Using time series data of probe particles embedded in the actin cortex, we establish a lower bound for the entropy production of cortical activity. Our results demonstrate a reliable way to measure the breaking of detailed balance in mesoscopic systems.
by Garrett Watson.
S.B.
5
Tasooji, Mohammad. "Novel Liquid extraction method for detecting Native-wood Formaldehyde." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/73511.
Повний текст джерелаАнотація:
New vigorous regulations have been established for decreasing the allowable formaldehyde emissions from nonstructural wood based composites. Two main sources of formaldehyde emission in non-structural wood based composites are adhesive and wood. Adhesives are quite well known and great efforts have been conducted to decrease their formaldehyde content; however formaldehyde emission from wood has received little attention and it is not completely understood. Wood-borne formaldehyde emission exists in a complex equilibrium in wood matrix. The reaction between formaldehyde and wood hydroxyl groups/water can hinder the complete formaldehyde extraction. In order to have a complete formaldehyde extraction, a stronger nucleophile than hydroxyl and water groups is needed.
In this study cross-linked poly (allylamine) (PAA) beads were synthesized and used as a strong nucleophile to extract all the biogenic and synthetic free-formaldehyde within the woody matrix of never-heated and heat-treated Virginia pines; the results were compared to simple water extraction. A new formaldehyde capturing device was also developed using a serum bottle.
Results showed that there was no advantage of using PAA beads over simple water extraction for extracting woody matrix free-formaldehyde. This means that simple water extraction can extract all the free-formaldehyde from the woody matrix. It was also found that thermal treatment resulted in generating more wood-borne formaldehyde. The other important finding was the new developed formaldehyde capturing device. The device was very promising for detecting wood-borne formaldehyde from very small pieces of wood (5-70 mg) and can be very useful in future studies.Master of Science
6
Gao, Chunwang. "Statisical method and simulation on detecting cracks in vibrothermography inspection." [Ames, Iowa : Iowa State University], 2010. 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:3403798.
Повний текст джерела
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Jung, Jeenah. "Development of optical imaging method for detecting RNA-protein interactions." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54278.
Повний текст джерелаАнотація:
The localization and translation of messenger ribonucleic acids (mRNAs) play crucial roles in cellular function and diseases, and are regulated by numerous RNA-binding proteins (RBPs) and small non-coding RNAs, called trans-acting factors. Biochemical and imaging methods used to study RNA interactions with these trans-acting elements have made important discoveries in characterizing how these factors regulate gene expression and determining the RNA sequence to which they bind. However, the spatiotemporal information regarding these interactions in subcellular compartments have been difficult to determine or to quantify accurately. To image and quantify native RNA and RNA–protein interactions simultaneously in situ, we developed a proximity ligation assay that combines peptide-modified RNA imaging probes. It can detect the RNAs in live cells and the interactions at a single-interaction level. Lastly, it can produce results that are easily quantifiable. We tested the specificity and sensitivity of this technique using two models: interactions between the genomic RNA and the N protein of human respiratory syncytial virus as well as those between exogenous transcripts with or without the Human antigen R (HuR) binding site and HuR. To validate this method, its accuracy and utility have been demonstrated in three models: poly(A)+ or β-actin mRNAs binding to different cytoskeleton for localization, poly(A)+ or β-actin mRNAs interacting with HuR for stabilization, and programmed cell death 4 (PDCD4) mRNA binding to HuR or T-cell intracellular antigen (TIA1) for translational regulation.
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Serra, Andreas. "A difference analysis method for detecting differences between similar documents." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-219566.
Повний текст джерелаАнотація:
Similarity analysis of documents is a well studied field. With a focus instead on the opposite concept, how can we try to define and distinguish the differences within documents? This project tries to determine if differences within documents can be detected as well as quantified based on their semantic qualities. We propose a method for quantifying differences by applying tf-idf based models with analysis methods for lemmatization and synonym extraction, together with utility ranking algorithms. The method is implemented and tested. The results show that the method has potential but that further studies are required in order to fully evaluate to what extent it could be of practical use. Such a method could though reap significant benefits within several different fields in which automatic difference detection could replace error prone manual labor in document management, as well as other beneficial purposes such as to provide automatically generated difference summaries.Likhetsanalys mellan dokument är ett välutforskat område. Med fokus istället på motsatsen, hur kan vi försöka definiera och särskilja skillnaderna mellan dokument? Detta projekt försöker undersöka om skillnader mellan dokument kan detekteras samt kvantifieras baserat på deras semantiska kvalitéer. Vi föreslår en metod för kvantifiering av skillnader genom att applicera tf-idf baserade modeller tillsammans med analysmetoder för lemmatisering och synonymextrahering, i kombination med utilitetsrankningsalgoritmer. Metoden implementeras och testas. Resultaten visar att metoden har potential men att det krävs ytterligare studier för att fullt ut avgöra till vilken grad den skulle kunna vara praktiskt användbar. En sådan metod skulle dock kunna erbjuda stora fördelar för ett flertal olika discipliner, där automatisk skillnadsdetektering skulle kunna ersätta felbenägen manuellt arbete gällande dokumentationshantering, samt också fylla andra förmånliga syften som t.ex. att kunna erbjuda automatgenererade skillnadssammanfattningar.
9
Saleh, Ahmed Dhary. "Development of a method for detecting TB-antibodies in patient serum." Thesis, Bangor University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664479.
Повний текст джерелаАнотація:
The main objective of the work was to develop a analytical method for the diagnosis of TB, and this was achieved in three parts.The first part was involved the synthesis of two oxygenated mycolic acids, a methoxy mycolic acid (I) and a keto mycolic acid (11). The successful synthesis of these mycolic acids led to the synthesis of the cord factors TDM (Ill), TMM (IV), TDM (V) and TMM (VI), which were used in modified ELISA assay as new antigens to detect TB-antibodies in serum. The second part was involved the synthesis of thiolated derivatives (VII), (VIII) and (IX) of methoxy mycolic acids. These compounds will be covalently attached to a gold surface so as to create a self assembled monolayer with antigenic properties. It is expected that this will create a stable surface for the binding of TB-antibodies in diagnosis tuberculosis tests. This will contribute to development of a new biosensor as a rapid and accurate method for detecting TB infection. The third part was concerned on analysing of TB positive and TB negative samples to detect TB-antibodies in patient serum using novel synthetic mycolic acids and their derivatives as antigens in modified ELISA assay, after determination of the optimisation conditions of the ELISA assay. Higher antibody binding signals were observed with cord factors. The sensitivity and selectivity for TDM (198) (80%, 87%), TDM (204) (75%, 90%) and TDM (254) (80%, 84%), respectively which showed good significant values in comparison with other synthetic antigens.
10
Rahimi, Sanaz. "A method for detecting and locating brain tumors in MRI images /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1467892381&sid=21&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Повний текст джерела
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Tamang, Sujan. "Empirical Evaluation of AdaBoost Method in Detecting Transparent and Occluded Objects." Youngstown State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1527599823503772.
Повний текст джерела
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Bilash, О. М., О. М. Galaichenko, O. A. Sushko, and M. M. Rozhitskii. "Benzo[a]pyrene its influence on human organism and new nanophotonic detection method." Thesis, Benzo[a]pyrene its influence on human organism and new nanophotonic detection method, 2011. http://openarchive.nure.ua/handle/document/8860.
Повний текст джерелаАнотація:
Benzo[a]pyrene (BaP) is representative of polycyclic aromatic hydrocarbons (PAHs) family, the substance of the first hazard class. In an environmental, BaP accumulates mainly in a soil and less in a water. It comes from soil to plants and human tissues and continues to move on in the food chain in living organisms where at each stage the BaP concentration is increasing sufficiently. To human organism BaP can come through skin, respiratory organs, digestive system and transplacental infections. Besides that BaP is the most typical chemical carcinogen in environmental, it is dangerous to humans even at low concentrations, since its metabolites are mutagenic and highly carcinogenic and has the property for bioaccumulation. Being chemically relatively stable, BaP can migrate for a long time from one object to another. As a result, many objects and process in the environmental objects which do not have the ability to synthesize the BaP, are the secondary sources of its production.
Content control of BaP in environmental can be accomplished by different assay among which the most wide-spread is liquid chromatography. Known methods possess both positive and negative characteristics the last are connected with assay complexity, not allowing of their used in a field conditions, duration, high cost. So new technologies especially based on nanotechnologies and nanomaterials are in great demand both for BaP and other hazardous organic PAHs compounds. Having in mind that BaP as most of PAH has high fluorescence yield in visible spectrum and is capable to emit electrogenerated chemiluminescence (ECL), it is quite possible to use this well-known assay method for both direct and indirect definition [1]. At the same time mentioned ECL methods of BaP definition provide not enough low limit of detection (LOD). Using luminescent nanomaterials such as semiconductor quantum dots (SCQD) as highly efficient detector elements in appropriate nanophotonic sensor can provide assay for BaP detection in surrounding objects water in the first turn with rather low LOD (10 nmol/l). The proposed combined photonic (electrochemiluminescent), nanotechnology (sensor’s electrode modification) and electrochemical (analytical signal excitation) techniques are possessing a number of advantages which are discussed in the given paper.
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Licitra, Edward J. (Edward Joseph). "The yeast three-hybrid system : a method for detecting ligand-protein interactions." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38836.
Повний текст джерела
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Jones, Mark Philip. "A low frequency acoustic method for detecting abnormalities in the human thorax." Thesis, University of Southampton, 1996. https://eprints.soton.ac.uk/253034/.
Повний текст джерела
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Lacorazza, Camila. "Evaluation of environmental samples as a sampling method for detecting pathogens in zebrafish." Thesis, Uppsala universitet, Institutionen för kvinnors och barns hälsa, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-385875.
Повний текст джерелаАнотація:
Zebrafish are becoming increasingly popular to use in different kinds of research projects as research animals, replacing rodents in many fields. When using animals for research, it is important to keep track of the animal health in order to get reliable results. The purpose of the study was to investigate whether these pathogens could be found analyzing environmental materials with real-time PCR instead of euthanizing fish and submitting them for histopathology. Also, to see if any material differentiated from the rest regarding accessibility to work with in a routine diagnostic laboratory. This study was performed on environmental samples, such as filters, swabs, detritus and water, from a recirculating water system holding zebrafish. The pathogens analyzed were Mycobacterium chelonae, M. haemophilum, M. abscessus, M. marinum, M. fortuitum and Pseudoloma neurophilia, all common pathogens that can affect zebrafish. All materials tested gave at least one positive result for most of the pathogens tested. Two pathogens were not detected, M. marinum and M. abscessus. Due to poorly working PCR-system for M. fortuitum, the results for that bacteria were deemed inconclusive. The filter materials and the swabs of the filter materials gave the best results in this small study, although all materials gave satisfactory results. In conclusion this study shows that environmental samples can be used to detect pathogens in zebrafish, but larger studies should be performed to better evaluate which material is the best one to use.
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Bartlome, Richard. "Vapor phase infrared laser spectroscopy a complementary method for detecting doping agents in urine /." kostenfrei, 2007. http://e-collection.ethbib.ethz.ch/view/eth:30168.
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Johnston, Paul Weir. "Transthoracic impedence cardiography : a method of detecting the loss of cardiac output during arrhythmias." Thesis, Queen's University Belfast, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387925.
Повний текст джерела
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LaBerge, Kelsen. "Exploratory research on a method for detecting shaft radial cracks severity, location, and feasibility /." online version, 2009. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=case1228403434.
Повний текст джерела
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Afrose, Sharmin. "A Negative Dielectrophoresis Based Method of Detecting Pancreatic Cancer Antigen CA 242 in Serum." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/31817.
Повний текст джерелаАнотація:
Patients with pancreatic cancer in metastasis rarely survive, thus the need for diagnostic tools for early stage detection. Current techniques such as ELISA and SPR are complex and expensive and cannot detect cancer in its early stages. Cancer Antigen 242 (CA 242) is a potential protein biomarker of pancreatic cancer with high sensitivity and specificity. This thesis presents a negative Dielectrophoresis (DEP) based method of detecting pancreatic cancer protein biomarker CA 242 in serum. A spectrum of concentration levels was generated with a cut off level 20 U/mL using a transduction mechanism with negative DEP spectroscopy, light scattering, and image processing. This was a fast and cost-effective method to diagnose early stage pancreatic cancer. This thesis also presents the design and simulation of an electrode modified to increase the electric field gradient with reduced heat generation and a concentration prediction model to predict concentrations from the generated spectrum of experiments.
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LaBerge, Kelsen. "Exploratory Research on a Method for Detecting Shaft Radial Cracks: Severity, Location, and Feasibility." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1228403434.
Повний текст джерела
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Shahri, Mehdi Abbaszadeh. "Detecting and modeling cement failure in high pressure/ high temperature wells using finite-element method." Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/3241.
Повний текст джерелаАнотація:
A successful cement job results in complete zonal isolation while saving time and money. To achieve these goals, various factors such as well security, casing centralization, effective mud removal, and gas migration must be considered in the design. In the event that high-pressure and high-temperature (HPHT) conditions are encountered, we must attempt to achieve permeability in the set cement to prevent gas migration and to prevent any other fluid passing through to collapse the entire structure. Therefore, the design of the cement must be such that it prevents: Micro-annuli formation Stress cracking Corrosive fluid invasion Fluid migration Annular gas pressure In HPHT cases, we need more flexible cement than in conventional wells. This cement expands more at least 2 to 3 times more in some special cases. The stress in the cement is strongly connected with temperature and pressure, as well as lithology and in-situ stress. If we can define a method which connects the higher temperature to the lower stress field, we would have the solution for one side of the equation, and then we could model the pressure (stress principles) at the designated depth and lithology. Since the stress is so dependent on temperature, the temperature variation must be accurately predicted to properly design the fluid and eliminate excessive time spent waiting on cement. In addition, a post-job analysis is necessary to ascertain zonal isolation and avoid unnecessary remedial work. By increasing the flexibility of the set cement (lowering the Young's modulus), we can reduce the tensile stress in the cement sheath during thermal expansion. This could be a solution to the problem of cement stability in high temperature cases. Here we report the use of the finite-element method (FEM) to investigate the stress fields around and inside the cement, and to forecast the time of failure and its affect on cement integrity. This method is more powerful than conventional stability methods since complex boundary conditions are involved as initial conditions and are investigated simultaneously to more accurately predict cement failure. The results of this study show the relevant dependency of stress principles with temperature and pressure. These results clarify the deformation caused by any disturbance in the system and the behavior of under-stress locations based on their relative solid properties.
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Sonti, Niharika. "A Unified Method for Detecting and Isolating Process Faults and Sensor Faults in Nonlinear Systems." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1292763603.
Повний текст джерела
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Blyth, Benjamin John, and benjamin blyth@flinders edu au. "Development and use of an adoptive transfer method for detecting radiation-induced bystander effects in vivo." Flinders University. School of Medicine, 2009. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20091008.150317.
Повний текст джерелаАнотація:
Ionising radiation can cause damage to DNA that can result in gene mutations contributing to carcinogenesis. Radiation-protection policy currently estimates cancer risks from exposures to radiation in terms of excess risk per unit dose. At very low radiation dose-rates, where not all cells are absorbing radiation energy, this formula carries the inherent assumption that risk is limited to those cells receiving direct energy depositions. Numerous studies have now called this assumption into question. Such low dose-rates are in the relevant range that the public receives from natural background and man-made sources, and, if this fundamental assumption proves unfounded, current estimations of radiation-induced cancer risk at low doses will be incorrect. Accurate predictions of stochastic cancer risks from low-dose radiation exposures are crucial to evaluating the safety of radiation-based technologies for industry, power generation and the increasing use of radiation for medical diagnostic and screening purposes.
This thesis explores phenomena known as radiation-induced bystander effects. The term bystander effects, as used here, describes biological responses to ionising radiation (hitherto observed in vitro) in cells not directly traversed by an ionising track, due to intercellular signals received from neighbouring cells that did receive energy depositions. This study aimed to determine whether radiation effects are communicated between irradiated and unirradiated cells in vivo, and if so, whether this effect alters current estimations of cancer risk following low-dose radiation exposures. In order to answer these questions, an in vivo experimental system for studying bystander effects in mice was developed. The method was based on the adoptive transfer of irradiated splenocytes into unirradiated hosts with simultaneous identification of irradiated donor cells, and biological endpoints in unirradiated bystander cells in situ using fluorescence microscopy and image analysis.
Splenocytes from donor mice were radiolabelled with 3H-thymidine or received an acute X-ray dose. The irradiated donor cells, labelled with a fluorescent probe, were then adoptively transferred into unirradiated recipient mice via the tail vein, whilst control mice received sham-irradiated donor cells. A proportion of the cells lodged in the recipient mouse spleens where they remained for a period before the tissues were cryopreserved. The locations of donor cells were identified in frozen spleen sections by the fluorescent probe, and the levels of apoptosis and proliferation were simultaneously evaluated in situ in the surrounding unirradiated bystander cells using fluorescence-based assays. Transgenic pKZ1 recipient mice were also used to quantify chromosomal inversions in bystander cells. Since three-dimensional spatial relationships were preserved, responses could be measured in the local area surrounding irradiated cells as well as further afield. Following the development of the irradiated-cell adoptive transfer protocol and validation of the sensitivity and reproducibility of the biological assays in situ, a series of experiments was performed. In the initial experiments, 500,000 radiolabelled cells (0.33 mBq.cell-1) were injected into recipient mice and the spleen tissues were isolated 22 h later. No changes in apoptosis or proliferation were detected in local bystander spleen cells or throughout the spleen, compared to mice receiving sham-radiolabelled donor cells. In subsequent experiments, the effects of a number of experimental conditions were explored including the injection of tenfold more donor cells, analysis of spleen tissues after three days lodging in vivo, radiolabelling of donor cells with 100-fold higher 3H dose-rate and irradiation of donor cells ex vivo with 0.1 or 1 Gy X-rays. In each case, no changes in apoptosis or proliferation were observed.
The in vivo method described here was designed to simulate the conditions of a bystander scenario from low dose-rate exposures relevant to public radiation protection. Contrary to the many reports of bystander effects in vitro, experiments using this sensitive method for examining the in vivo responses of unirradiated cells to neighbouring low-dose irradiated cells, have so far shown no changes in bystander cells in the spleen. This adoptive transfer method is the first in vivo method for examining the effects of known irradiated cells exposed to low radiation doses at low dose-rates, on neighbouring cells in situ that are truly unirradiated. Both the irradiated and bystander cells are normal, non-transformed primary spleen cells functioning in their natural environment. This in vivo experimental system allows the examination of tens of thousands of bystander cells and has shown a remarkable sensitivity, with statistical power to rule out changes in apoptosis <10% from the control.
The relevance of in vitro bystander findings is unclear. Many reported bystander effects are more analogous to the systemic communication of abscopal effects from highly irradiated tissues. Disagreement between experimental systems and difficulty in reproducing key results between laboratories further complicate the translation of bystander data in vitro to human risk-estimation. The radiation protection community has expressed its need for in vivo validation of the bystander phenomenon before it can be included into the appraisal of carcinogenic risk. This adoptive transfer method is now available to study a range of bystander endpoints and potential signalling mechanisms in vivo, and provides a way to translate the wealth of data previously collected in vitro into findings directly relevant to human risk-estimation.
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McQuaig, Shannon M. "Novel method for detecting human polyomaviruses in environmental waters as an indicator of human sewage pollution." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0012040.
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MacInnes, Jann Marie Wise. "The Mantel-Haenszel method for detecting differential item functioning in dichotomously scored items a multilevel approach /." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0041142.
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Hoffman, Rhonda M. "Pre-weaning diet and stall weaning method influences on stress response in foals." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/40651.
Повний текст джерелаАнотація:
The response of foals to the stress of weaning was examined in terms of
a behavioral protocol and the responses of plasma ascorbate, serun1 cortisol,
and the serum cortisol response to an ACTH challenge. Behavior scores (1 to
10) as an index of stress were assigned to each foal daily, with high scores
indicating less stress and better adjustment. The experimental plan was a 2 X 2
factorial of pre-weaning diet and stall weaning method. Foals were raised on
pasture supplemented with hay and a pelleted concentrate (PHC) or pasture
supplemented with hay only (PH). Foals were placed in stalls singly or in pairs
for weaning. Gender influences were also examined. The foals exhibited
characteristic behavioral and physiological responses to the social dislocative
stress of weaning. Behavior scores were lower in paired than in single foals (p =
.008) and tended to be lower in PH than PHC foals (p = .15). No differences in
post-weaning plasma ascorbate concentrations were found among treatments.
Responses of serum cortisol to an ACTH challenge were lower in PH than PHC
foals (p = .001) and in paired than single foals (p = .058), and lower responses
were taken to represent adrenal depletion arising from stress. Behavior scores
were positively correlated with the response of serum cortisol to ACTH. Both
behavioral data and the serum cortisol response to ACTH indicate that foals
were better able to cope with weaning stress when supplemented with
concentrate prior to weaning and when weaned singly.
Master of Science
27
Brodie, Kimberly Becknel. "Intrapersonal and community-related influences of rural adolescent pregnancy: A mixed-method approach." ScholarWorks, 2009. https://scholarworks.waldenu.edu/dissertations/674.
Повний текст джерелаАнотація:
The majority of data on adolescent pregnancy pertains to urban communities, therefore, the individual and social influences associated with adolescent pregnancy in rural communities have not been extensively explored. The pregnancy rate among adolescent women aged 15 to 19 in rural Vance County, North Carolina, is 113.7 per 1,000, nearly twice the state average. This sequential mixed-method study used the social ecological model to evaluate the intrapersonal and community-related factors associated with adolescent pregnancy in this rural area. A quantitative survey assessed intrapersonal factors, namely sexual health knowledge, sex-related attitudes, and self-esteem in pregnant or parenting and nonpregnant or nonparenting groups. Two sample t tests revealed significant differences between groups relative to personal sexual values and attitudes toward premarital sex. There were no significant differences between groups for sexual health knowledge scores or self-esteem scores. Qualitative focus group discussions with one group, consisting of pregnant, parenting, nonpregnant, and nonparenting participants, assessed community opportunity structure as a behavior-influencing dynamic. Open-coding analysis revealed perceptions of strained employment and education-related structures, low community expectations of pregnant adolescents, and the influence of peer-related normative beliefs in early sexual intercourse. To bring about social change, community organizations should collaborate to engage participant-driven research while prioritizing the implementation of county-wide, comprehensive sex education programs. Improved programming could repair social norms, increase sexual health knowledge, and encourage personal responsibility over sexual health decisions.
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Fraser, Arron Mark. "A MIXED METHOD STUDY OF WHAT INFLUENCES SUBSIDIARY MANAGERS’ COMPLIANCE WITH HEADQUARTERS INSTRUCTIONS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1522685464965911.
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29
Bengtsson, Bernander Karl. "A Method for Detecting Resident Space Objects and Orbit Determination Based on Star Trackers and Image Analysis." Thesis, Uppsala universitet, Avdelningen för visuell information och interaktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-236873.
Повний текст джерелаАнотація:
Satellites commonly use onboard digital cameras, called star trackers. A star tracker determines the satellite's attitude, i.e. its orientation in space, by comparing star positions with databases of star patterns. In this thesis, I investigate the possibility of extending the functionality of star trackers to also detect the presence of resident space objects (RSO) orbiting the earth. RSO consist of both active satellites and orbital debris, such as inactive satellites, spent rocket stages and particles of different sizes. I implement and compare nine detection algorithms based on image analysis. The input is two hundred synthetic images, consisting of a portion of the night sky with added random Gaussian and banding noise. RSO, visible as faint lines in random positions, are added to half of the images. The algorithms are evaluated with respect to sensitivity (the true positive rate) and specificity (the true negative rate). Also, a difficulty metric encompassing execution times and computational complexity is used. The Laplacian of Gaussian algorithm outperforms the rest, with a sensitivity of 0.99, a specificity of 1 and a low difficulty. It is further tested to determine how its performance changes when varying parameters such as line length and noise strength. For high sensitivity, there is a lower limit in how faint the line can appear. Finally, I show that it is possible to use the extracted information to roughly estimate the orbit of the RSO. This can be accomplished using the Gaussian angles-only method. Three angular measurements of the RSO positions are needed, in addition to the times and the positions of the observer satellite. A computer architecture capable of image processing is needed for an onboard implementation of the method.
30
Metcalfe, Elizabeth Ann. "How 'place' influences acute coronary syndrome outcome among older people : a mixed-method study." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/6881/.
Повний текст джерелаАнотація:
The impact of acute coronary syndrome has been increasingly recognised since the introduction of the National Service Framework in 2000. Interest in the relationship between place of residence and health has grown although a sound conception of what place is and how the health of older people with acute coronary syndromes relates to where they live is lacking. This thesis aims to understand the nature and effect of place in relation to health inequalities on daily lives for older people recently diagnosed with ACS. An exploratory sequential mixed methodology was utilised across Yorkshire and Humber. This consisted of iterations of quantitative and qualitative data collection, analysis and data synthesis. The relationship between place and survival was first explored using secondary data analysis. In-depth experiences and perceptions of the dimensions of place effect and recovery from ACS were then explored using postal questionnaires at two times and qualitative interviews and community mapping discussions with ten participants. Conceptual data synthesis was ongoing. This informed the development of the study and built a layered picture of place effect. A second iteration of secondary data analysis explored how representations of conceptual place effect were associated with survival rates. Where a person lived effected how they dealt with changes created by ACS and their survival. Conceptualisation of place was summarised from the synthesised data as: place usability; personal connection to place; level of adjustment; perceived level of support; support; and population density. By developing the different interrelated layers of place effect, these findings enable future evaluation to be more representative of the impact ACS has on an older person’s daily life within their place of residence.
31
Nixon, William. "Unsteady friction under the influence of external flows, and the implications to transient-based leak detection methods /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20NIXON.
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Kelbick, Nicole DePriest. "Detecting underlying emotional sensitivity in bereaved children via a multivariate normal mixture distribution." Columbus, Ohio : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5fnum=osu1064331329.
Повний текст джерелаАнотація:
Thesis (Ph. D.)--Ohio State University, 2003.Title from first page of PDF file. Document formatted into pages; contains xiv, 122 p.; also contains graphics. Includes abstract and vita. Advisor: Joseph, Dept. of Statistics. Includes bibliographical references (p. 119-122).
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Whitley, Annie R. "Method Development for Detecting and Characterizing Manufactured Silver Nanoparticles in Soil Pore Water Using Asymmetrical Flow Field-Flow Fractionation." UKnowledge, 2012. http://uknowledge.uky.edu/pss_etds/9.
Повний текст джерелаАнотація:
Recent advances in nanotechnology have led to the production of materials with nanoscale dimensions (nm) and properties distinctly different from their bulk (>100 nm) counterparts. With increased use, it is inevitable that nanomaterials will accumulate in the environment and there is concern that the novel properties of nanomaterials could result in detrimental environmental and human health effects. In particular, there has been concern recently regarding the use of silver (Ag) based nanomaterials as antimicrobial agents in consumer and medical products. Current regulations dealing with the discharge of metals into the environment are based on total concentrations with no consideration for the form (e.g., ionic, nanoparticle, colloid) which can largely determine toxicity. Methods for the identification and characterization of nanoparticulates within complex matrices are lacking and the development of robust methods for this purpose are considered a high priority research area. This research focuses on the development and application of a novel method for characterizing Ag manufactured nanoparticles (MNPs) within terrestrial environments, in particular in soil pore water, with applications relevant to other metal MNPs as well. The method was then applied to understand the dynamics and behavior of Ag MNPs in soil and soil amended with sewage sludge biosolids.
34
Huo, Shiyin. "Detecting Self-Correlation of Nonlinear, Lognormal, Time-Series Data via DBSCAN Clustering Method, Using Stock Price Data as Example." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1321989426.
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35
Deverson, Stephanie. "An investigation of the Doppler signal power method for detecting changes in the size of the middle cerebral artery." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/29354.
Повний текст джерелаАнотація:
The Transcranial Doppler ultrasound technique is widely used for detecting velocity changes in the middle cerebral artery. However, flow changes inferred from velocity alone may be subject to error if the cross-sectional area of the vessel changes during a recording. One potentially ideal method for measuring changes in middle cerebral artery size is the Doppler signal power method. This is based on the theory that the power of a Doppler signal is proportional to the volume of blood from which the signal originates. In practice a number of factors other than vessel size influence signal power and hence may invalidate the technique. This thesis documents an investigation of the feasibility of using the Doppler signal power to measure changes in middle cerebral artery size. The main factors influencing signal power were considered. In-vitro recordings from a wall-less flow phantom showed a non-proportional relationship between power and channel size. This was deduced to be caused primarily by non-uniform insonation and high pass filtering. Following from these results, non-uniform insonation was identified as the main source of error for in-vivo recordings. An investigation of the effects of temporal bone on beam shape showed that beam shape across the middle cerebral artery is likely to be highly distorted and vary unpredictably between individuals. Theoretical modelling was used to predict the errors caused by beam shape in power changes detected from the middle cerebral artery, and demonstrated a variable error magnitude dependent on beam shape, vessel size, vessel position and beam angle. A novel technique for correcting the Doppler power spectrum for the effects of beam shape was proposed, and performed well when tested with theoretical and in-vitro spectra. Finally, an initial investigation of the correction technique using in-vivo spectra provided important information regarding future investigations of the in-vivo use of the Doppler power method.
36
Wang, Lih-Min, and 王立民. "Detecting Influential Observations by Bootstrap Method." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/74114793168513195824.
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37
Yu-TingWei and 魏毓亭. "Application of ERT Method on Detecting UndergroundAbnormality." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/03743009011860739739.
Повний текст джерелаАнотація:
碩士國立成功大學
土木工程學系碩博士班
101
The purpose of this study is to use electrical resistivity tomography (ERT) method to survey the underground abnormal composition through different level of electrical resistivity. By applying electrical current through the soil and measuring the specific resistance of the underground soil, the resistance data of solid or rock can be analyzed. Thus, the underground profile can be obtained due to the difference resistivity of soil deposit. Two sites are investigated in this study. The first site is to explore the soil profile of the two dams of a new under construction reservoir, which used back-filled, rolled, and compacted methodology of construction. The results show that there are the same characteristics as the reservoir’s survey report. The second site is located at the north side of the civil engineering building in the National Cheng Kung University. The main purpose of this exploration is to determine the depth of foundation pile. After applying three different patterns of examinations, i.e. the Wenner array, Schlumberger array, and ipole-Dipole array, the results show that the depth of the foundation pile is not easy to be detected. This may be due to the soil profile under both sides of survey line is different. East side is a back-filled material, while the west side is pure soil deposits. In the measurement, the different metal electrodes, one is rebar (the east side) while the other is stainless steel (the west side), were used. The data of specific resistance of the back-filled material on the east side of the survey line is greater than those of the other side. For the purpose of comparison, the same soil site was used with different metal electrodes. The result shows that the survey depth is shallow as the rebar is used.
38
Zeng, Yi-Ting, and 曾乙庭. "Damage Detection of Beam by the Influence Line Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/2d9e57.
Повний текст джерелаАнотація:
碩士國立中央大學
土木工程研究所
97
Damage assessment of structure is an important task for the maintenance and management of bridge system. An influence line type inspection technique is developed in this thesis. The displacement influence line at a point in the span of a beam structure is measured first. Through the second derivative of this displacement influence line with respect to the spatial variable along the beam, both the locations and the severities of crack damage can be clearly identified. The feasibility and accuracy of this damage assessment technique are verified both theoretically and numerically of beams with various prestress states. The second Castigliano’s theorem is applied to calculate the displacement influence line of beams with various prestress conditions and damages. Due to the measurement noise, the capability of damage identification from experimental data is not as impressive as it shown in the numerical and theoretical investigations. However, this scanning type damage assessment technique by the influence line response provides a possible manner to improve the inspection efficiency if the effect from measurement noise can be reduced in the future.
39
Chang, chun-hwa, and 張俊華. "Establishment of detecting method for fluoroquinolone residue in." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/29388919127780328724.
Повний текст джерелаАнотація:
碩士國立中興大學
獸醫微生物學研究所
84
Fluoroquinolone (including Danofloxacin, Ofloxacin and Enrofloxacin) are widely used in controlling gram negative bacterial and mycoplasmal infectionsof livestock in Taiwan. Howere,the problem of drug residues will arise in meat hygiene if the farmers ignore the withdrawing peroid of these drugs before slaughtering their livestock. In this study, we determined the optimum conditionfor the application of high performance liquid chromatography(HPLC) to the analysis of drug residue in meat and withdrawing period. In the first part of our study, muscles and livers were taken from chickens experimentally treatedwith Danofloxacin, Ofloxacin and Enrofloxacin in drinking water at dosage of 10,10 and 5 mg/kg wt./day, respectively. Samples from the chickens of the three treated groups were pretreated with 0.5M dipotassium hydrogen phosphate solution, extracted with dichloromethane and then fractionated in 1% phosphobic acid.The last fraction was assayed for traces of the drug by HPLC. By comparing the results of the three tested fluoquinolones, the appropriate withdrawing period of Danofloxacin, Ofloxacin and Enrofloxacin were found to be 3, 7 and 9 days,respectively. These periods were the same as those recommended by the drug manufacturers. Since the drug residues were found to be below 0.001ug per gramof the samples tested, it is thought that the meat will be safe for human comsumption. In the second part of this study, of the three hundred muscle samplescollected from a commercial slaughterhouse that were assayed for drug residue,fluoroquinolones were observed in 104 muscles(34.67% of tested samples) at concentration ranging from 0.008 to 0.0122 ug/g. The number of the farms with chickens positive for drug residues were 11 of 15 farms surveyed(73.33%). Theestablishment of this drug residue assay method will make it possible for assaying routinely a large number of samples at the slauterhouse. In addition, our resultson the withdrawing period and the testing of market samples will provide the Department of Agriculture r reference for improving meat hygiene and the strengthening of public health.
40
Hsieh, Cheng-Kuang, and 謝承光. "Tree method for detecting zones of distributional differences." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/tfdzds.
Повний текст джерелаАнотація:
碩士國立中正大學
數學系統計科學研究所
103
We apply the subgroup identification method of Loh et al. (2015) to non-medical data for detecting zones of distributional differences. The subgroup identification method can find subgroups that show significant treatment effects. We apply the same procedure and use bootstrap confidence interval with the Bonferroni correction (Johnson and Wichern, 2014) for finding zones of distributional differences among years in the arson fire data. The analysis shows that this method can successfully detect zones of distributional differences among 4 years. Furthermore, it is feasible to adopt these methods in other fields.
41
Hawkins, Ilima R. "Detecting Leptospira in water : evaluation of a proposed method." Thesis, 2007. http://hdl.handle.net/10125/20765.
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42
LI, ZHI-GIANG, and 李志強. "A probe-based method for detecting distributed resource deadlocks." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/88602030732601112707.
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43
Lin, Hong-Yi, and 林泓毅. "Detecting the Meishan Fault by the Seismic Reflection Method." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/59164116762251718810.
Повний текст джерелаАнотація:
碩士國立中央大學
地球物理研究所
93
The Meishan fault is an earthquake fault which was displaced in the 1906 Meishan earthquake (M=7.1). The earthquake induced severe damages and killed 1,258 people. However, it is also signified as the first instrument-recorded and well-documented earthquake in Taiwan by civilized technologies. The fault was a right-lateral and slight-thrust oblique fault (1~2 m displacement) trending in the N75E direction. The northern side was lifted near Meishan and it changed to the southern side raised remote from Meishan. We revisit the Meishan fault to prepare for its 100th anniversary in 2004-2005. A relatively advanced and detailed reflection seismic survey was carried out to find new evidences which may lead better understanding of the peculiar behaviors of the fault. After collecting and analyzing 4 seismic profiles across the fault, we realize that it needs to put the Meishan fault in the regional geological framework to identify its role and meaning. The earthquake was initiated near Meishan where the fault intersected the Hsiaomei anticline by 50 degrees. There is also another significant thrust (the Chiuhsiungken fault, NS orientation) sited to the east. The merger of these three systems claims the focus of the earthquake. When the earthquake was set off, the northern side moved to the east and was hindered by the Hsiaomei anticline and the Chiuhsiungken thrust, thus was uplifted. On the other hand, far from Meishan to the west end, the southern side was relatively free to move and even uplift. An interesting compressive bending type of ‘flower structure’ was found along the fault trace given by Omori (1907). The rupture amplitudes decay quickly toward the western end, where is the Chungcheng university. The segmentation of fault occurred here and a branch (the Chenchuliaw fault) resumed. The investigation of the Meishan fault should be concentrated around Meishan, not to the western end. More investigations need be emphasized near the town of Meishan.
44
Lin, Ting-Ching, and 林廷璟. "A Method of Detecting Phishing Attacks for Auction Sites." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/23h859.
Повний текст джерелаАнотація:
碩士國立中興大學
資訊科學與工程學系所
101
Phishing attacks attract users to visit fake website to steal their personal information. Most phishing detection approaches adopt Uniform Resource Locator (URL) blacklists or phishing website features as a detection character to cope with phishing attacks. The existing approaches of using URL blacklists cannot detect the new phishing attacks because they are not existed in the blacklists. Similarly, the existing feature-based methods suffer high false positive rates and this leads to an inadequacy in the online transactions. To solve these problems, we use the feature of legitimate websites to detect phishing attacks to improve false negative rates and false positive rates.
45
Lin, LiangAn, and 林良安. "Detecting the Hokou Fault by Shallow Seismic Reflection Method." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/38962813520673292203.
Повний текст джерелаАнотація:
碩士國立中央大學
地球物理研究所
88
Detecting the Hukou Fault by Shallow Seismic Reflection Method Liang-An Lin ABSTRACT The Hukou fault is located at the northern border of the Hukou terrace. It runs almost in the east-western direction. Physiographically, the fault looks like a scarp along the terrace’s boundary and is generally attributed as an active fault. The purpose of this study is to detect the Hukou fault and the structures in its vicinity using the shallow seismic reflection method. Several long-range seismic lines (400 m long) are distributed perpendicular to the fault trace with the visible seismic images down to the depth of 700 meters. Besides this, we also used five short-range seismic lines across the Hukou anticline, from the edge of the terrace to Tienzuhu, to investigate the structure of this fault-related anticline. After carefully reserving the characteristics of each reflector, we are able to correlate different layers on different seismic profiles. On the seismic profiles, we find that all structure layers vary quite smoothly. The layers bend upward, but not broken at the suspected place of the Hokou fault. It seems that the scarp represents a boundary of curved stratum (i.e. part of an anticline), not a presentation of an actual fault. Furthermore, the positions where the structures bend are shifted to the east from the cliff of the terrace by about 50 m. The young Tienzuhu Formation has covered this shifted area. Thus, we tend to propose that a blind thrust fault might hide at the bottom and it makes the ‘fault-bend’ fold structure. We also found that the Hukou anticline is an asymmetric anticline. It is steeper in the north flank than in the south flank. The axis is extended toward the southeast of Pingchen and becomes closer to the fault with decreasing uplift. One important seismic images are obtained on the plane area where the young lateritic terrace deposits is obviously disturbed by the tectonic stress. Because of this, we intend to propose that the potential risk of the fault activity might not be ignored.
46
Lee, Jin Whai, and 李進輝. "Monte Carlo Method Applied to Detecting System And Related." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/01845423282251690191.
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47
Kuo, Yao-wen, and 郭耀文. "Detecting Moho Boundary under Taiwan by Ray-tracing Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/g22s49.
Повний текст джерелаАнотація:
碩士國立中央大學
地球物理研究所
97
Taiwan is located on the converging boundary of Eurasian and Philippine Sea plates, it is one of the most rapidly uplifting orogeny in the world. In this area, the pattern of the plate collision is occurred between two subducting systems, the geological structure here is quite complicate. So there are many models of the tectonic collision, from the typical thin-skinned thrust to the lithospheric collision, or some other models as uplifting of buoyancy. In this study, we attempt to describe the Moho depth beneath Taiwan by using amount of data from the project of Taiwan Integrated Geodynamic Reseach(TAIGER), and expect for the results can make some improvements to the construction of tectonic collision patterns of Taiwan orgoeny. The land-explosion of TAIGER project was carried out from Feb to March on 2008, and it includes：1) 3 W-E line linear seismic arrays which were consisted of 800 Texans with spacing in 200 meters at northern, middle and southern Taiwan; 2) 2 N-S linear seismic arrays which were consisted of seismometers with spacing in 6 kilometers at middle and eastern Taiwan; 3) 10 explosion sources with the dynamite from 750~3000 kilograms which were set at the depth of 80 meters in the hole with an aperture of 12 inches, and the sources were located on the northern and southern W-E line from the west to the east. We get 6 kinds of data from this experiment, including：1) the wide-angle reflections of Texans; 2) the N-S seismometer arrays; 3) the seismic network of Central Weather Bureau(CWB) and Institute of Earth Science(IES); 4) the seismic array of Reftek 130(RT130) from IRIS in TAIGER project; 5) the short period of Ocean Bottom Seimometer(OBS) array in the Taiwan Strait; 6) the temporary seismic array in mainland China. In this study, we handle the data from 3 W-E transects, 2 N-S transects and Taiwan Strait, and simulate the structure model from the first arrival time and more obvious reflections of these data by Ray-tracing method. The preliminary results are as follows：1) It is a standard layered structure beneath western Taiwan and the thickness of crust is 30 kilometers; 2) The crust thickens and becomes more than 40 kilometers in the mountain area, but it is narrow and deep here; 3) The structure beneath Hsuehshan Range and Central Mountain Range are different; 4) There are some boundary faults as deep as to the lower crust, especially the Li-shan fault; 5) The distribution of the Moho depth is basically thicker in the north, shallower in the south and getting deeper and deeper from the west to the east, but finally getting shallower rapidly in the area of Coast Range; 6) The Moho depth is shallower than 30 kilometers in the Peikang Height and deeper than 32 kilometers at the coast line of Fujian, there is no bulge in Taiwan Strait.
48
Liao, Ching-Min, and 廖敬民. "Bioassay Method for Detecting Imazapyr and Residual Activity in Soil." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/30648046674272411587.
Повний текст джерелаАнотація:
碩士朝陽科技大學
環境工程與管理系碩士班
95
Imazapyr is a major herbicide used on upland fields in Taiwan. It shows strong herbicidal activity at a low application rate against a wide range of weeds. Inadequate use of imazapyr could result in phytotoxicity of non-target plants due to its strong herbicidal activities on most species and relative longer residual activity. This research was conducted to investigate the bioactivity of tested herbicide in soil and the phytotoxicity potential of soil leachates on non-target crops. A bioassay method using radicle growth inhibition of cucumber and lettuce was developed to determine the concentration of imazapyr in soil and soil leachates. The method involved planting pre-germinated seeds of tested crops in soil treated with imazapyr or in filter papers soaked in 400 ml soil leachates. The radicle length of germination after 7, 14 and 21 days treatment was measured individually, dose-response relationship between radicle elongation and 500 ppm imazapyr was existed, but not between hypocotyl elongation and imazapyr concentration. When imazapyr was detected in soil leachates by HPLC, an apparent inhibition in radicle length of cucumber and lettuce by high concentration of imazapyr was observed. Differential sensitivity of tested plants to imazapyr was quantified by determining the herbicide rates required to reduce radicle length 20% and 50% (I20 and I50 values). Data indicated that sorghum and cabbage were generally more sensitive than other plant species tested. Cucumber and tomato were intermediate sensitivity, and mungbean and lettuce were the most tolerant species tested. Soil treated with imazapyr and its leachate affected negatively on radicle elongation. However, the soil leachate caused less inhibition than the tested soil. The suppression effects of treated soil and leachate on radicle elongation were similar, indicating that imazapyr may leach from the soil into the soil water. In the field experiment, the soil was sprayed with 750 g ha-1, 1.5 kg ha-1 and 3 kg ha-1 imazapyr, individually. The soil samples was collected after treatment. Imazapyr residue in soil sample was analyzed by HPLC and bioassay method. The residue of imazapyr in soil decreased as spraying time increase. The degradation rate of 3 kg ha-1 imazapyr in soil was more rapid than 1.5 kg ha-1. The degradation rate of imazapyr in soil decreased in cold and less rainy season. The tendency of sensitivity of three crops to imazapyr residual in soil was almost the same between the hot and cold season. The sensitive degree of three crops to imazapyr residual in soil sequentially was cabbage,cucumber and mungbean. In conclusion, imazapyr residue in soil and rate of radicle elongation in hot season was more less than cold season by HPLC analysis and bioassay method. Cabbage could be used as an indicator crop for detecting imazapyr residue in field soil under the rainy hot season, otherwise cucumber was recommended as an indicator crop under dry cold season.
49
Ning, Chen Chih, and 陳智寧. "A Method for Detecting ECoG Electrodes’ Locations from CT Image." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/88993809742137293466.
Повний текст джерелаАнотація:
碩士長庚大學
電機工程學研究所
97
Epilepsy is one kind of common brain pathological symptom, usually due to certain sub-area pathological change , or brain injury , etc. In this study , an algorithm for identifying electrodes from brain CT image proposed , in order to incorporate electrode information into brain image . The major work is to find the locations of electrodes from brain CT images which are composed of massive brain tissues , bone electrical lines , and electrodes . The proposed algorithm can reduce the efforts and errors in manual identification of electrodes.
50
Gung, Fu-Ren, and 龔莆壬. "A Method for Detecting the State of Charge of Batteries." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/94894395814054071397.
Повний текст джерелаАнотація:
碩士東海大學
電機工程學系
102
Generally, the estimation and prediction methods of E-bike’s battery are easily impacted by aging, effective measurement also reliedon on high-end commercial impedance spectroscopy. The method that can be used on battery resistance and state of charge (SOC) detecting is described, which is based on specific battery chemistries and focused on the internal impedance without complex chemical model. By using switched circuit, corresponding parameters can be measured. The method uses Labview and DAQ-6008 to modulate sinusoidal signals at 100 Hz, which is converted to a constant-current excitation signal. By measuring the response of voltage, the battery internal resistance can be found. The relationship between cell impedance and SOC is also identified.