- Characterization of trabecular bone structure using 2D Fourier transformation and fractal analysis
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Lee KI
- KMID: 1537415
- J Korean Acad Oral Maxillofac Radiol.
- 1998 Aug;28(2):339-353.
The purpose of this study was to investigate whether a radiographic estimate of osseous fractal dimension and power spectrum of 2D discrete Fourier transform is useful in the characterization of... -
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- Fourier Analysis of Maxillary Dental Arch Forms
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Nakatsuka , Tsujibayashi T, Kumabe S, Jue SS, Shin JW, Iwai-Liao
- KMID: 2283421
- Korean J Phys Anthropol.
- 2008 Jun;21(2):137-148.
Our previous principal component analysis conducting on reference points, lines and angles, and a vectordeveloped polar coordinate system has elucidated that the components of eigenvectors had positive relationships in the... -
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- Efficient QRS complex detection algorithm based on Fast Fourier Transform
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Kumar A, Ranganatham R, Komaragiri R, Kumar M
- KMID: 2448404
- Biomed Eng Lett.
- 2019 Feb;9(1):145-151.
- doi: 10.1007/s13534-018-0087-y
An ECG signal, generally filled with noise, when de-noised, enables a physician to effectively determine and predict the condition and health of the heart. This paper aims to address the... -
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- Fourier Analysis of Doppler Arterial Waveforms of Lower Extremity
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Lee HG, Yum MK
- KMID: 2324540
- J Korean Soc Vasc Surg.
- 2001 Apr;17(1):56-62.
PURPOSE: Although it is well known that the pulsatile Doppler waveforms change in shape with disturbed flow, interpretation of the waveforms has largely been subjective. We aimed to describe the... -
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- Quantitative Analysis of Quartz, Mica, and Feldspar in Respirable Coalmine Dust in Taebaek Area by Fourier Transform Infrared Spectrophotometry
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Choi HC, Cheon YH, Kim HJ, Lee JJ
- KMID: 2282338
- Korean J Prev Med.
- 1988 Nov;21(2):271-283.
A Fourier transform infrared spectrophotometric method was described for the determination of quartz, mica(sericite) and feldspar(potassium feldspar) in respirable dust in Taebaek area. The results were as follows; 1) The... -
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- Silhouette differences among cats do not suggest a general selection for paedomorphosis
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Pares-Casanova PM
- KMID: 1884014
- Korean J Vet Res.
- 2013 Sep;53(3):155-158.
Paedomorphosis is the retention of juvenile morphology at maturity and is important in generating evolutionary change in domestic species and species in the wild. This preliminary study compared morphological characteristics... -
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- Electroretinographic Findings in Diabetics with No Observable Retinopathy
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Lee SH, Kim SH
- KMID: 2205205
- J Korean Ophthalmol Soc.
- 1997 Jun;38(6):985-991.
Five common electroretinograms and Fourier transform of the oscillatory potentials were recorded in adult diabetic patients with no observable retinopathy. To describe the limits of normal, we listed the median... -
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- The Calculation of the Electroretinographic Power
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Won CH, Cho JH, Kim SH, Lim JH
- KMID: 2147747
- J Korean Ophthalmol Soc.
- 1997 May;38(5):817-823.
To promote the electrophysiologic diagnostic efficiency, the program for calculation of the total power in the frequency domain and of the area in the time domain of the electroretinogram was... -
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- Fourier transform infrared spectroscopy for analysis of kidney stones
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Khan AH, Imran S, Talati J, Jafri L
- KMID: 2399262
- Investig Clin Urol.
- 2018 Jan;59(1):32-37.
- doi: 10.4111/icu.2018.59.1.32
PURPOSE: To compare the results of a chemical method of kidney stone analysis with the results of Fourier transform infrared (FT-IR) spectroscopy. MATERIALS AND METHODS: Kidney stones collected between June and... -
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- Digitalized Eye Movement recording and Verification of its Reproducibility
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Han SH, Kim HB, Lee JB, Kwon OW, Yoo SK
- KMID: 2336755
- J Korean Ophthalmol Soc.
- 1999 Jan;40(1):197-210.
Many diagnostic tools, which record eye movement, are available for diagnosis and treatment of the patients with impaired eye movement. Most of these tools cannot record directly the eye movement... -
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- Improvement of Fourier Transform Arteriography by Use of Ramped RF Profile and Dual Projections
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Jung KJ, Kim IY, Lee MW, Yi Y
- KMID: 1595669
- J Korean Soc Magn Reson Med.
- 2002 Jun;6(1):41-46.
The Fourier transform arteriography (FTA) exploits the periodic variation of arterial flow velociety of arterial flow velocity in stnchronized with cardiac cycles. This technique is intrinsically unique compared to... -
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- Noninvasive ambulatory blood pressure monitoring in 22 healthy normotensive young adolescents
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Lee DI, Shin JA, Chun KJ, Moon CH, Hwang BU, Hong TJ, Shin YW, Shin YK
- KMID: 2229228
- Korean Circ J.
- 1993 Jun;23(3):363-372.
- doi: 10.4070/kcj.1993.23.3.363
BACKGROUND: Ambulatory blood pressure monitoring is widely available in clinical practice. To evaluate the pattern of normal 24 hour variation of blood pressure and the problems in analysis of data... -
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- Spectral Analysis of Polysomnography in Narcolepsy
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Yun SH, Choi HD, Seo WS
- KMID: 2371800
- Psychiatry Investig.
- 2017 Mar;14(2):193-197.
- doi: 10.4306/pi.2017.14.2.193
OBJECTIVE: This study was conducted to identify differences between people with narcolepsy and the normal control of delta and theta activity using electroencephalogram (EEG) spectrum analysis of nocturnal polysomnography (PSG). METHODS:... -
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- Motor Activity in Adult Patients with Attention Deficit Hyperactivity Disorder
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Fasmer OB, Mjeldheim , Forland W, Hansen AL, Dilsaver S, Oedegaard , Berle JO
- KMID: 2391819
- Psychiatry Investig.
- 2015 Oct;12(4):474-482.
- doi: 10.4306/pi.2015.12.4.474
OBJECTIVE: Hyperactivity is a core symptom of attention-deficit hyperactivity disorder (ADHD), but limited information is available on analysis of activity patterns in this disorder. The aim of the study was... -
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- MRI Technique for the Detection of Acoutic Neuroma
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Chae SW, Kim MG, Choi JH, Hwang SJ
- KMID: 2274702
- Korean J Otolaryngol-Head Neck Surg.
- 2000 May;43(5):488-492.
The mortality and morbidity associated with the surgery of acoustic neuroma (schwannoma) are intimately related to the tumor size. Therefore, early detection of acoustic neuroma greatly influences the postoperative result.... -
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- Automatic heart activity diagnosis based on Gram polynomials and probabilistic neural networks
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Beritelli , Capizzi G, Lo Sciuto , Napoli C, Scaglione
- KMID: 2439536
- Biomed Eng Lett.
- 2018 Feb;8(1):77-85.
- doi: 10.1007/s13534-017-0046-z
The paper proposes a new approach to heart activity diagnosis based on Gram polynomials and probabilistic neural networks (PNN). Heart disease recognition is based on the analysis of phonocardiogram (PCG)... -
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- Effect of water content on the flexural strength during refiring in dental porcelain
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Park HY
- KMID: 2321714
- J Korean Acad Prosthodont.
- 2003 Oct;41(5):656-673.
STATEMENT OF PROBLEM: Long-term exposure of dental porcelain to saliva during temporary cementation of a porcelain-fused to metal (PFM) restoration could affect mechanical strength of dental porcelain if the restoration... -
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- An Introduction to Quantitative Analyses of Sleep EEG Via a Wavelet Method
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Kim JW
- KMID: 2317513
- Sleep Med Psychophysiol.
- 2012 Jun;19(1):11-17.
OBJECTIVE: Among various methods developed to quantitatively explore electroencephalograms (EEG), we focused on a wavelet method that was known to yield robust results under nonstationary conditions. The aim of this... -
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- Assessment of Gastric Contraction by Surface Electrogastrography
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Paik SW, Rhee JC, Kim IY, Kim JJ, Koh KC, Sohn CI, Lee WY, Jun SK, Rhee PL, Han WT
- KMID: 2240602
- Korean J Gastroenterol.
- 1998 Jul;32(1):8-14.
Backgroud/Aims: The aim of this study was to identify gastric contraction by surface electrogastrography (EGG). METHODS: Ten functional dyspeptic patients were included. Antropyloroduodenal manometry and EGG for functional dyspeptic patients... -
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- Clinical Usefulness of Cepstral Analysis in Dysphonia Evaluation
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Park MC, Mun MK, Lee SH, Jin SM
- KMID: 1855838
- Korean J Otorhinolaryngol-Head Neck Surg.
- 2013 Sep;56(9):574-578.
- doi: 10.3342/kjorl-hns.2013.56.9.574
BACKGROUND AND OBJECTIVES: With the present methods for assessing speech, there are procedures that make effective diagnostics possible for voice disorders. One such procedure is cepstrum. Spectrum is produced by... -
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