• Transactions of the Korean Society of Mechanical Engineers B
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• v.22 no.7
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• pp.1030-1040
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• 1998

One of the main unresolved issues in large-eddy simulation(LES) of wall-bounded turbulent flows is the requirement of high spatial resolution in the near-wall region, especially in the spanwise direction. Such high resolution required in the near-wall region is generally used throughout the computational domain, making simulations of high Reynolds number, complex-geometry flows prohibitive. A grid-embedding strategy using a nonconforming spectral domain-decomposition method is proposed to address this limitation. This method provides an efficient way of clustering grid points in the near-wall region with spectral accuracy. LES of transitional and turbulent channel flow has been performed to evaluate the proposed grid-embedding technique. The computational domain is divided into three subdomains to resolve the near-wall regions in the spanwise direction. Spectral patching collocation methods are used for the grid-embedding and appropriate conditions are suggested for the interface matching. Results of LES using the grid-embedding strategy are promising compared to LES of global spectral method and direct numerical simulation. Overall, the results show that the spectral domain-decomposition grid-embedding technique provides an efficient method for resolving the near-wall region in LES of complex flows of engineering interest, allowing significant savings in the computational CPU and memory.

• Journal of Korea Multimedia Society
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• v.17 no.12
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• pp.1393-1401
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• 2014

This paper presents an adaptive image interpolation method using a pixel-based neighbor embedding which is modified from the patch-based neighbor embedding of contemporary super resolution algorithms. Conventional interpolation methods for high resolution detect at least 16-directional edges in order to remove zig-zaging effects and selectively choose the interpolation strategy according to the direction and value of edge. Thus, they require much computation and high complexity. In order to develop a simple interpolation method preserving edge's directional shape, the proposed algorithm adopts the simplest Haar wavelet and suggests a new pixel-based embedding scheme. First, the low-quality image but high resolution, magnified into 1 octave above, is acquired using an adaptive 8-directional interpolation based on the high frequency coefficients of the wavelet transform. Thereafter, the pixel embedding process updates a high resolution pixel of the magnified image with the weighted sum of the best matched pixel value, which is searched at its low resolution image. As the results, the proposed scheme is simple and removes zig-zaging effects without any additional process.

• The Journal of Internal Korean Medicine
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• v.34 no.3
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• pp.312-321
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• 2013

Objectives : This study was to report the effect of catgut-embedding therapy on scalp acupoints in stroke patients with hemiparesis. Methods : Three stroke patients with hemiparesis were treated by catgut -embedding therapy on scalp acupoints twice a week. After three weeks, the score of manual muscle test (MMT) and modified Barthel index (MBI) were improved compared with the first examination. Results and Conclusions : After the treatment, MMT and MBI score improved in all three patients. These results showed that catgut-embedding therapy on scalp acupoints is possible to be effective for treating hemiparesis in stroke patients, and further studies should be conducted to provide more valuable information.

• Journal of Acupuncture Research
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• v.30 no.4
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• pp.219-224
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• 2013

Objectives : The object of this study is to observe the effect of needle-embedding and acupuncture therapy on shoulder pain in Behcet disease. Methods : Needle-embedding therapy and acupuncture therapy was used to treat shoulder pain. We evaluated the patient through visual analog scale(VAS) and shoulder range of movement(ROM). Results : After weekly four times of needle-embedding therapy and daily acupuncture therapy, patient's VAS was decreased to 4 and ROM of shoulder was also improved. Conclusions : Needle-embedding and acupuncture therapy could be effective to decrease shoulder pain and improve movement of shoulder in Behcet disease patient.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.33 no.3
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• pp.138-152
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• 2020

Objectives : The aim of this study is to report a case of idiopathic oculomotor nerve palsy improved by Korean Medicine therapy including needle-embedding therapy. Methods : We treated a 69-year old male patient who has Rt. ptosis, Rt. eye movement impairment, and dizziness with various Korean medical therapy including acupuncture, Bojungikgitanggami, and Hominis Placenta pharmacopuncture. To promote recovery, we additionally performed needle-embedding therapy to periocular acupoints. Results : Ptosis started to remarkably improve after performing needle-embedding therapy. After 54 days of treatment, ptosis and eye movement impairment of Rt. eye were significantly improved similar to the normal eye. Dizziness was cured in a few days after administration. Conclusions : This case suggests Korean medicine including needle-embedding therapy is effective against oculomotor nerve palsy symptoms especially for ptosis.

• Journal of Physiology & Pathology in Korean Medicine
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• v.32 no.4
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• pp.291-297
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• 2018

The purpose of pilot clinical trial is to evaluate the efiicacy and safety of Needle-Embedding acupuncture therapy on TEWL(Transepidermal Water Loss) and Skin hydration. A total of 24 human who visited Dongshin Oriental Medical Center from December 1st, 2016 to July 31st, 2017 were included in the pilot clinical trial. Needle-Embedding acupuncture therapy performed at Gokji(LI11). We observed change of TEWL(Transepidermal Water Loss), Skin hydration before and after Needle-Embedding acupuncture therapy. In the primary endpoint, index of TEWL showed a statistically insignificant decline ($8.5{\pm}2.12{\rightarrow}7.8{\pm}1.53g/h/m^2$). Index of skin hydration showed a statistically significant result ($38.2{\pm}6.77{\rightarrow}36.8{\pm}6.64$). To evaluate the safety, Adverse events and Vital sign check were conducted and there were no problem. And when the physical response, self-awareness, skin system, musculoskeletal pain, and other abnormal responses were assessed 60 minutes and 24 hours and 7 days after Needle-Embedding acupuncture therapy at Gokji(LI11) for stability assessment, Adverse events disappeared during a pilot clinical trial. According to the above pilot clinical trial, it is suggested Needle-Embedding acupuncture therapy were effective for Skin moisturizing and safe.

• Journal of Oriental Neuropsychiatry
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• v.23 no.3
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• pp.99-116
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• 2012

Objectives : The purpose of this study is to evaluate the effects of Needle-Embedding Therapy on dementia patients. Methods : We recruited 3 dementia patients who have been experiencing memory disorder and orientation disorder. The patients had been evaluated with Mini-Mental State Examination-K (MMSE-K), Global Deterioration Scale (GDS) and Clinical Dementia Rating (CDR). The patients were treated with herbal medication (Sunghyangjunggi-san) and acupuncture. After 15 days, the patients were added to Needle-Embedding Therapy. We measured MMSE-K, GDS and CDR for every 15 days. The effects of additional Needle-Embedding Therapy were compared with the effects of acupuncture and herbal medicine. Results : After Needle-Embedding Therapy was added, Patients' memory and orientation have been improved and the score of MMSE-K ascended. The grade of GDS and CDR were maintained or decreased. Conclusions : This study suggests that Needle-Embedding Therapy is significantly effective on Dementia patients.

• Journal of KIISE
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• v.43 no.6
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• pp.678-685
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• 2016

Named Entity Recognition and Classification (NERC) is a task for recognition and classification of named entities such as a person's name, location, and organization. There have been various studies carried out on Korean NERC, but they have some problems, for example lacking some features as compared with English NERC. In this paper, we propose a method that uses word embedding as features for Korean NERC. We generate a word vector using a Continuous-Bag-of-Word (CBOW) model from POS-tagged corpus, and a word cluster symbol using a K-means algorithm from a word vector. We use the word vector and word cluster symbol as word embedding features in Conditional Random Fields (CRFs). From the result of the experiment, performance improved 1.17%, 0.61% and 1.19% respectively for TV domain, Sports domain and IT domain over the baseline system. Showing better performance than other NERC systems, we demonstrate the effectiveness and efficiency of the proposed method.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.2
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• pp.148-155
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• 2014

In this paper a commute time embedding is implemented by organizing patches according to the graph-based metric, and its properties are investigated via changing the number of nodes on the graph.. It is shown that manifold embedding methods generate the intrinsic geometric structures when waveforms such as speech or music instrumental sound signals are embedded on the low dimensional Euclidean space. Basically manifold embedding algorithms only project the training samples on the graph into an embedding subspace but can not generalize the learning results to test samples. They are very effective for data clustering but are not appropriate for classification or recognition. In this paper a commute time guided transform is adopted to enhance the generalization ability and its performance is analyzed by applying it to the classification of 6 kinds of music instrumental sounds.

• The Journal of Korean Medicine
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• v.36 no.2
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• pp.43-49
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• 2015

Objectives: We evaluated the effect of the traditional Korean medical therapy of catgut-embedding therapy in patients with carpal tunnel syndrome (CTS). Methods: Thirteen patients(20 hands) with CTS underwent catgut-embedding therapy once per week for a total of 1-4 sessions. We measured the time to tingling in the fingers on performing Phalen's test. We also had patients use a visual analog scale (VAS) to indicate the severity of tingling. We also asked about the awakening time at night due to pain and tingling. We controlled the treatment as being limited to four sessions. Even if a patient had not been treated for four sessions, we ended the patient's treatment if symptoms resolved. Results: Patients who received catgut-embedding therapy showed significant improvements in the clinical symptoms of CTS. After treatment, in a total of 19 hands, the status of fourteen was changed from positive to negative in Phalen's test and the average of tingling occurrence time in that test was delayed. Among the 20 hands, the VAS in eight hands changed to zero and the average of VAS score decreased. Furthermore, in nine patients, four could sleep well without the use of a splint. Conclusions: Patients undergoing this traditional Korean medical therapy showed alleviation of finger tingling after even a single treatment. We thus concluded that this traditional Korean catgut-embedding therapy, may be effective for treating CTS. However, to confirm the effects of catgut-embedding therapy on CTS, further tests are required, including under the defined, strict conditions of a randomized controlled trial.