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Dissertations / Theses on the topic 'Plucking'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Rea, Brice R. "Plucking and abrasion beneath temperate plateau icefields." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239228.

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2

Bento, Pedro. "Harpsichord : its timbre, its tuning process, and their interrelations." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/9773.

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At the Edinburgh University Collection of Historical Instruments (EUCHMI) there are two virginals where the strings are plucked extremely close to 1/4 of their length over a substantial part of the compass. Principles of Acoustics dictate that in such cases the fourth partial of the resulting sound is unlikely to be produced with any appreciable magnitude. Similar situations affecting different partials also occur when the plucking point is located at other fractional parts of the string length, such as 1/3 or 1/5. A database of plucking points, based on museum catalogues, was created and anal

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3

Piçarra, João Pedro dos Santos Carvalho. "Estudo sobre a detecção do circovirus aviário psitacídeos domésticos na região de Barcelona – Espanha." Bachelor's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2010. http://hdl.handle.net/10400.5/2397.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>A dissertação aqui presente estuda pela primeira vez, a infecção pelo circovirus aviário (Beak and Feather Disease Virus - BFDV) em aves psitacídeas na região espanhola da Catalunha, entre 2005 e 2008. O BFDV provoca a doença do bico e penas dos psitacídeos (Psittacine Beak and Feather Disease - PBFD), cuja apresentação clínica depende de vários factores relativos à ave infectada, ao ambiente e ao genótipo viral. A doença é observada em aves de cativeiro de todo o mundo e em aves selvagens de África e do Pacífico, colocando em risco

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4

Hardman, James Brian. ""Plucking roses from a cabbage patch"| Class dynamics in progressive era Louisville as understood through the contested relationship of Mary Bass and Alice Hegan Rice." Thesis, The University of North Carolina at Charlotte, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10247404.

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<p> In 1901, Alice Hegan Rice, a wealthy socialite reformer, published the novel <i>Mrs. Wiggs of the Cabbage Patch</i> which dealt her experiences working with the poor. By the end of 1902 her novel had become a national phenomenon and finished the decade as one of its five bestselling books. Though the novel was fictional in nature, the book’s heroine, Mrs. Wiggs, was based on the life of a real woman, who inhabited the one of the poorest neighborhoods in Louisville, Kentucky at the turn of the twentieth-century, a slum known as the Cabbage Patch. Shortly after the book’s publica

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5

Chung, Li-Chuan, and 鍾里泉. "Numerical simulation of bedrock incision by plucking." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/91171398513308015752.

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碩士<br>國立交通大學<br>土木工程學系<br>99<br>During flood season, river discharge in Taiwan varies significantly, stream power sometimes can become very high. The outcrop in the western foothill of Taiwan contains mostly young formation with low resistance and poor cementation. Once the armor layer in river channel becomes eroded away, the exposed rock bed will be subjected to irrecoverable erosion. Intensive incision or widening of riverbed causes the instability of river channels and threatens the safety of cross-river or near bank structures. The erosive mechanisms of bedrock and alluvium are very diffe

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6

Tsung-HsiWu and 吳宗錫. "Analysis and Implementation of a Piezoelectric Harvester Using Plucking Force." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/80929042412382159801.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>99<br>Piezoelectric energy harvesters are capable of capturing and storing the energy derived from external vibrations. The captured energy can be used to operate low-power electric devices such as LEDs or wireless transmitters. The development of low-power electric devices has recently been advanced, a great deal of research pertaining to this area has therefore been investigated. Examples of low frequency vibrations in daily life include human’s motions, moving train, and flying flags. Such vibrations can be directly converted into electrical energy; however, lo

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7

Chiang, Chien-Yu, and 江前昱. "Numerical Simulation and Simplified Analysis of Bedrock Incision by Plucking." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/29846847764619700843.

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碩士<br>國立交通大學<br>土木工程學系<br>100<br>Plucking is often the dominant mechanism of bedrock erosion when the rock riverbed is composed of heavily jointed rock masses. This thesis made use of particle flow simulation to model the bedrock incision by plucking. Through numerical simulation, the thesis looked into the microscopic features of the plucking mechanism and explored the important factors that may affect the kinematics and the kinetics of rock-block plucking in block scale. This study first simulated the direct shear on modeled weak plane to properly model the mechanical behavior on a discont

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8

Chen, Qiu-Yan, and 陳秋燕. "Study of Timbre with Plucking the String of Classical Guitar." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/9e7dp7.

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碩士<br>國立中央大學<br>光電科學與工程學系<br>107<br>In the past, the tristimulus was used for the timbre analysis of musical instruments. The intensity ratio between the fundamental oscillating mode and the overtones are used to define the coordinates in the tristimulus. The timbre can be approximately classified by the coordinates. In this study, we found that the different types of the vibration decay of the string at the fundamental frequency could significantly result in the different timbres. In our experiment by exciting the first, second and third strings of the classical guitar, at the fundamental fr

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9

Chang, Yung-Pang, and 張永邦. "Application of Rotating Magnetic Plucking to Array of Piezoelectric Energy Harvesting." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/n54bt3.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>106<br>The thesis investigate the array of piezoelectric energy harvesting under rotational magnetic plucking used for energy harvesting, with an intention to improve the stability of power output and reduce ripples in the output frequency response.The first attempt is to choose the parallel connection of multiple piezoelectric oscillators attached to a single rectifier for overall electrical rectification. However, the result shows the significant power reduction due to serious charge cancellation by the different timing of magnetic plucking.Then, an array of piezoe

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10

Coke, Geoffrey Bryan. "Business cycle asymmetry: state-space models with Markov switching." Thesis, 2012. http://hdl.handle.net/1828/4042.

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This thesis extends Kim and Nelson's (1999) plucking model for real GDP to include correlated innovations. The resulting correlated innovations unobserved components (UC) model allows for both asymmetric transitory movements and correlation between the permanent and transitory innovations. Applying the extended model to U.S., Canadian and Australian GDP, I show that the GDP series can be usefully decomposed into a permanent component, a symmetric transitory component, and an additional occasional asymmetric transitory shock. Incorporating correlated innovations in the model changes the allocat

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11

Yan, Chih-lung, and 顏志龍. "Development of PC Based Control System for Cutter-Height of Tea plucking Machine." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/33477298088467167538.

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碩士<br>國立臺灣大學<br>生物產業機電工程學研究所<br>91<br>ABSTRACT The purpose of this study is to develop an accurate automatic control system for the cutter-height of tea-plucker. To establish a feedback automatic control system and an arithmetic model, this system is combined with a personal computer, a hydraulic pressure device, A/D, D/A converters and a height-variation sensor. Some parameters of the arithmetic model were identified by MATLAB on off-line method. The parameters of PID were calculated by Ziegler-Nichols process. Under PID control, the system has accurate dynamic responses to the ste

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12

Chen, Yu-Ting, and 陳昱婷. "Application of Deep Convolutional Neural Networks for the Identification of Tea Plucking Points." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7y953r.

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碩士<br>國立臺灣大學<br>生物產業機電工程學研究所<br>106<br>Tea (Camellia sinensis) has mainly two plucking types: hand plucking and machine plucking. Although mechanical tea harvester boosts the harvesting efficiency by 12 to 15 times compared with hand-plucking method, it cannot avoid broken or old leaves and achieve the specific points (e.g., one tip with two leaves, one tip with three leaves, one tip with three leaves). High value tea is usually harvested by hand, which is labor intensive. However, tea farmers have faced the problem of labor shortage. To achieve efficient harvesting and specific plucking point

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13

OU, YANG-FENG, and 歐陽鋒. "A study on the control system of cutter-height of the tea-plucking machine." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/42174670362257425138.

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14

Yen, Cheng-Yang, and 顏晨陽. "A Stochastic Frontier Approach to the Plucking Business Cycle Model with Structural Changes in Cyclicality." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/42e2me.

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碩士<br>國立臺灣大學<br>經濟學研究所<br>103<br>The globalization of markets and the increasing complexity of financial products, the magnitude of fluctuations in the economy cycle has become more difficult to predict, so this thesis will focus on the short-term cycle. In this thesis, we used the stochastic frontier model to estimate Friedman (1964) plucking model, and further analyzed break points of business cycle. We use the US quarterly data from 1955:Q1 to 2014:Q3 as the empirical sample, and also considered the effect of variables leading business index, the federal funds rate, and the government finan

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15

Hsiao, Yu-Jen, and 蕭又仁. "Experimental Validation of Two Approaches Adopted for Examining Harvesting Energy from Rotary Magnetic Plucking Dynamics." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/mtuazd.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>107<br>The thesis presents an experimental validation of two different theories adopted for examining harvesting energy from rotary magnetic plucking dynamics. The energy harvester device includes a piezoelectric bimorph mounted on a stationary base with a magnet attached to its free end. Energy is harvested by vibration of beam induced by non-contact rotary magnetic plucking. Assuming small tip displacement, the first theory estimating the harvested power is based on the fundamental mode of the magnetic interaction force applied to the resonant modal formulations of

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16

XIAO, XIAO-SHENG, and 蕭校生. "Synaptic alteration within C3 barrel of primary somatosensory cortex after of neonatal plucking of principal whisker." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/64428145210404693094.

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17

Huang, Po-Hao, and 黃柏豪. "Application of Improved Synchronized Electric Charge Extraction Circuit to Piezoelectric Energy Harvesting Induced by Magnetic Plucking." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/qhj7v8.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>107<br>The thesis develops an improved SECE (synchronized electric charge extraction)　interface circuit suitable for extracting energy from a rotary magnetic plucking dynamic system. Indeed, the device consists of a piezoelectric cantilever beam fixed on a stationary base and attached to an SECE circuit. A tip magnet is excited by a rotating magnet, giving rise to harvesting energy by non-contact magnetic plucking. The proposed improved SECE circuit allows the piezoelectric voltage exceeding 20 Volt, and therefore, harvested energy is enhanced in comparison with our

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18

Guo-Hao, Wu, and 吳國豪. "Influences of Plucking Crops on Agronomic Characters and Individual Catechins Contents with The Investigation of Their Correlations in Tea." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/10522153059360711873.

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碩士<br>國立嘉義大學<br>農學研究所<br>95<br>This study aimed to investigate the influences of varieties (lines) and plucking crops on agronomic characters and individual catechins contents of young tea shoots or green teas, and correlations among individual catechins contents and agronomic characters. These informations could be then used as an indirect selecting index for breeding high catechin content varieties. One hundred and eighty-seven varieties (lines) planted in the germplasm garden of Yuchih Branch, Taiwan Tea Research and Extension Station were used, including small-leaf, large-leaf and wild t

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19

Tsai, Cheng-Hsin, and 蔡政信. "Changes in chemical and sensory quality paramenters of black tea due to variations of processing condition, plucking seasons and varities(lines)." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/79573071159821165144.

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碩士<br>國立中興大學<br>農藝學系所<br>98<br>Black tea is fully fermented. Withered leaves undergo biochemical reactions during distortion and fermentation stages in the manufacturing process, after which they are subjected to drying. Tea composition and also the taste and aroma vary with variety, climate, soil, plucking season, age of the leaf, agronomic practices, and manufacture process. In the present study, the effects of variety, plucking seasons, and manufacturing process, on tea liquor sensory characteristics and chemical quality are investigated. Chemical composition, total free amino acid content,

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20

Yu-Feng, Shih, and 石榆鳳. "Effects of Different Processing, Plucking Crops and Varieties (Lines) on Polyphenolic Compounds of Camellia sinensis var. assamica and Camellia sinensis f. formosensis." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/68947332839035794990.

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碩士<br>國立嘉義大學<br>農學研究所<br>95<br>This study aimed to investigate the effects of different year, plucking crops and varieties (lines) on polyphenolic compounds of young tea shoots and derived Paochung tea in large leaf type and wild type. Correlations between individual catechins contents of Paochung tea and agronomic characters of young tea shoots were also studied. Besides, the changes of individual catechins during processing were investigated to provide information for catechins extraction. The results were summarized as follows： Ⅰ. The changes in the content of Caffeine, Gallate acid (GA)

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