第 36 筆
國家圖書館索書號: 330 001M 87-19 系統編號: 86NTU00198012
研究生: 黃啟裕 Huang, Chi-Yu
(以研究生姓名查詢國家圖書館索書號 ,未查獲者表國圖尚未典藏)
(以研究生姓名查詢國科會科資中心微片資料庫)
(連結至全國圖書聯合目錄) (連結至政大圖書館館藏目錄)
論文名稱: 主動脈血壓波與血流波的模擬與分析
論文名稱: The analysis and simulation on the blood flow and
pressure wave in artery
指導教授: 陳義裕 Y.Y. Chen
王唯工 W.K. Wang
學位類別: 碩士
校院名稱: 國立台灣大學
系所名稱: 物理學系
學號: R85222035
學年度: 86
語文別: 中文
關鍵字: 主動脈 artery
血壓波 pressure wave
血流波 blood flow
相位差 phase difference
耦合振盪 coupled oscillation
血液動力學 hemodynamics
[摘要]
循環系統為維持生命的重要一環,而心臟將血液送出後即由動
脈所運送。心血管系統如何有效地分配血量至所需的各器官組織一
直是研究者所關注。
本文利用彈性管與豬主動脈進行各種模擬與體外實驗(in vitro)
嘗試探討單一主動脈的特性。實驗結果得知單一主動脈的特徵頻率
非呈現諸諧波的關係(即一倍、二倍、三倍…等),且長度愈長的
主動脈其自然頻率愈低。流體在幫浦打出流入主動脈後,血流波領
先血壓波的角度大都從45度開始。在較長的彈性管後面可發現血壓
波反而領先血流波且角度有愈漸增大的趨勢。
生理上,人體的脈波均呈現諧波關係,且血流波皆領先血壓波,
與單一模擬的主動脈性質不盡相同。因此我們認為動脈樹叢(器官)
之間的耦合振盪不僅會改變血壓波的頻譜也會改變血流波的分布。
所以由這些分析我們以清楚了解了單一彈性管的特性,也認知單一
彈性管對描述整個循環系統所能獲得的訊息。有了這些基礎,我們
將可更進一步探討不同特徵頻率的彈性管耦合時所能造成的效應,
以模擬器官的耦合振盪效果,期能更接近生理狀況以了解整個循環
系統的奧祕。
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第 37 筆
國家圖書館索書號: 448 001M 87-139 系統編號: 86NTU00442017
研究生: 陳桂榕 Chen, Kuei-Jung
(以研究生姓名查詢國家圖書館索書號 ,未查獲者表國圖尚未典藏)
(以研究生姓名查詢國科會科資中心微片資料庫)
(連結至全國圖書聯合目錄) (連結至政大圖書館館藏目錄)
論文名稱: 針刺穴道對脈波及微循環之影響-以傳輸線模型解釋
論文名稱: The Acupuncture Effect on the Pulse Spectrum and the
Microcirculation-Interpretation byTransmission Line Model
指導教授: 王唯工 Wang Wei-Kung
指導教授(中) 姓名:
學位類別: 碩士
校院名稱: 國立台灣大學
系所名稱: 電機工程學系研究所
學號: R84523123
學年度: 86
語文別: 英文
論文頁數: 57
關鍵字: 針刺穴道 acupuncture
血液流體力學 hemodynamics
傳輸線理論 transmission line
脈波 pulse
微循環 micro-circulation
雷射都卜勒 laser Doppler flowmeter
[摘要]
我們曾經假設經絡是一群共振的血管樹叢(即所謂的穴道),以動脈成串相連。針刺穴
道即是該血管樹叢受到壓迫,因而改變了該經絡原來之共振頻率,血壓波因而重新分配至
各經絡。過去我們已經實驗了中藥或針刺穴道對手上脈波的影響,其結果均顯示出脈波之
各共振頻率分配比率被改變了,且改變之比率狀況與中醫之古籍中之記載極為吻合。為進
一步證明我們的理論,
本篇論文分成兩個部份研究針刺穴道的影響。並根據血液流體力學
的理論,進一步提出傳輸線理論來解釋我們所得到的實驗結果。
第一個部份是針刺穴道對脈波的影響。我們發現針刺同一穴道但受試者姿勢不同於中醫之
古籍中對於取穴法之記載對脈波有不同之影響,此結果顯示了中醫之古籍中對於取穴法之
記載有著重要的參考意義。
第二部份是針刺穴道對微循環的影響。我們利用雷射都卜勒量測與針刺穴道相同、不同
經絡上的穴道點(鄰近上、下各取一個穴道)之微循環,結果發現與針刺穴道相同經絡之
穴道點在針刺之後其血流量顯著下降,而不同經絡之穴道點則無影響。此一結果與過去有
實驗顯示「與被壓迫之穴道相同經絡的穴道點其脈波壓力在壓下穴道之後均顯著下降,而
不同經絡上的穴道點則變化不明顯」之結果相當吻合。
利用傳輸線理論,我們假設動脈及靜脈是一連串的電阻、電感的組合,而中間以動脈血管
樹叢,即電容,相連接,輸入電壓則代表心臟推動血液之能量。此一傳輸線有其特定之共
振頻率,此時能量傳遞百分之百至負載。各經絡就如以各不同頻率共振之傳輸線,因此心
臟可根據其頻率選擇性分配血液。如果我們針刺穴道,相當於該傳輸線其中之電容值被改
變,則共振頻率被改變,便產生能量重新分配,因而我們可量到脈波變化;而且該經絡上
之血壓波會下降,故血流量會減少。
Previously, we proposed that each meridian is a group of resonance arterial
trees, which are acupoints, connected to the artery. Blood
pressure wave distri-
butes differently at different meridians according to its resonance frequency.
Acupuncture is like to modulating the physical properties of arterial trees,
therefore disturbing the original resonance frequency. Then the blood pressure
wave distributes differently. We had investigated both herb
treatments and acu-
puncture were able to redistribute blood around the body. The previous
investigations also showed that the therapeutic effect of
acupuncture was in coincidence with its effect on the amplitude
of the pressure pulse spectrum.
In this report, we investigated the acupuncture effects on
pulse and on micro-circulation to more improve our proportions
and proposed the resonance theory and its transmission line model
according to the hemodynamics to interpret our experiment results.
Part one is the acupuncture effects on pulse. We found that
the posture effect is related to the positions of the acupoints.
The different acupuncture effects by different postures could be
interpreted by the resonance theory or its transmission line model.
The acupoint is supposed to be a coupled arterial tree, which
behaves like the induced capacitance in the transmission lines.
It suggested that the acupoint was the vascular trees, which were
embedded in one muscle. Since the position of the muscle changes
with the posture, and so does the acupoint. This could be the
reason to the Chinese medicine textbooks emphasize the important
of posture to get the therapeutic effects of acupuncture.
Part two is the acupuncture effects on micro-circulation.
We used the laser Doppler flowmeter measuring the blood flow of
the acupoints, one of which was on the same meridian as the
acupuncture point needled and one was on the different meridian
from the acupoint needled. We found that the blood flux decreased
significantly on the same meridian that was needled and wasn't
affected much on the different meridian. The result showed that
it correspond to our previous study that when one acupuncture
point was pressed, the blood pressure intensity of the artery
decreased significantly, while it didn't react much when non-
acupoint was pressed.The resonance theory or its transmission
line model successfully solves these results. Sticking a needle
into an acupoint is similar to change the matching capacitance,
which can disturb the transportation of the pressure wave, that
is the blood pressure intensity of the artery will decrease.
From the equationΔP(ω) = KB f , the blood flux may decrease also.
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第 38 筆
國家圖書館索書號: 系統編號: 86NTU00442181
研究生: Lu胡志明 HU, CHI-MIN
(以研究生姓名查詢國家圖書館索書號 ,未查獲者表國圖尚未典藏)
(以研究生姓名查詢國科會科資中心微片資料庫)
(連結至全國圖書聯合目錄) (連結至政大圖書館館藏目錄)
論文名稱: 肺音擷取系統及氣喘之哮鳴分析
論文名稱: Lung sound recording system and analyzing of wheezing
指導教授: 王唯工 Wei-Kong Wang
李茂煇 Maw H. Lee
吳惠東 Huey-Dong Wu
郭德盛 Te-Son Kuo
學位類別: 碩士
校院名稱: 國立台灣大學
系所名稱: 電機工程學系
學號: R84523127
學年度: 86
語文別: 中文
論文頁數: 94
關鍵字: 肺音 Lung sound
氣喘 Asthma
哮鳴 Wheezing
時頻分析 Time-frequency
transformations
聲譜圖 Sonogram
音框判斷法則 Frame decision rule
[摘要]
中文摘要
氣喘病基本上是一種與呼吸道收縮有關的慢性支氣管發炎,乃是
一種臨床症候群。
氣喘主要症狀中,哮鳴是最典型的氣喘症狀。因此,以哮鳴作為氣喘監視器或警報器之
主要訊號來源乃是目前較可行的方式。
本論文以商品化之麥克風,配合自製的濾波器、放大器與類比數
位轉換器,記錄肺
音訊號,並將其數位化輸入個人電腦中作離線儲存及分析。所記錄的資料,分別分析其
時域上與頻域上之特徵。並引入可包含時間因素的時-頻轉換方法,包括以快速傅立葉轉
換為基礎的短時間傅立葉轉換及以自迴歸法為基礎的分析方法。
針對分析結果,我們選擇以聲譜圖方式顯示,其中以自迴歸法作
分析所得到的聲譜
圖效果最好。最後,我們使用自行開發的音框判斷法區分正常肺音與哮鳴現象,大量減
少所需要的運算量。
就區分正常肺音與哮鳴現象而言,本方法已經有初步可行的結果。本論文期望將來能夠
據此開發即時氣喘警報系統。並希望能以本論文為基礎,進一步針對其他不正常肺音作
進一步研究。
Abstract:
Wheezing is the cardinal medical finding of asthma. A
new device for recording lung sound
based on personal computer that is composed of a
microphone with stethoscope bell and
preamplifier, a high pass filter, a low pass anti-
aliasing filter, and an ADC with a main amplifier
and microprocessor for transmitting data is developed.
Breathing sounds were recorded in normal and athmatic
patient over the trachea in the neck.
The power spectra of the sounds were analyzed by FFT
based and AR based time-frequency
transforms.
Sonogram were used to present the results of analyzed
by time-frequency transform and
the feature of wheezing is apparent, especially in the AR based one.
We introduced the frame decision rule method to auto-
recognizing the wheezing signal pattern
from normal lung sound. It has less data than digital
image processing and performance as well.
We now can distinguish between normal lung sound and
wheezing successfully and the real-time
monitoring and alarm system is expected. We try to
analyze other abnormal lung sound on
the base we did as well.
Keywords: Lung sound, Asthma, Wheezing, FFT, AR modeling, Sonogram,
Time-frequency transformations, Frame decision rule.