• ETRI Journal
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• 제39권3호
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• pp.398-405
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• 2017

In this paper, an artificial stereo extension method that creates stereophonic sound from a mono sound source is proposed. The proposed method first trains deep neural networks (DNNs) that model the nonlinear relationship between the dominant and residual signals of the stereo channel. In the training stage, the band-wise log spectral magnitude and unwrapped phase of both the dominant and residual signals are utilized to model the nonlinearities of each sub-band through deep architecture. From that point, stereo extension is conducted by estimating the residual signal that corresponds to the input mono channel signal with the trained DNN model in a sub-band domain. The performance of the proposed method was evaluated using a log spectral distortion (LSD) measure and multiple stimuli with a hidden reference and anchor (MUSHRA) test. The results showed that the proposed method provided a lower LSD and higher MUSHRA score than conventional methods that use hidden Markov models and DNN with full-band processing.

• 한국콘텐츠학회논문지
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• 제10권8호
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• pp.11-17
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• 2010

본 논문은 HMM기반의 상반신 제스처 인식에 대하여 연구하였다. 공간상의 제스처를 인식하기 위해서는 일단 제스처를 구성하고 있는 포즈에 대한 구분이 우선되어야 한다. 인터페이스에 사용되는 포즈를 구분하기 위해서 정면과 옆면에 설치한 적외선 카메라 두 대를 실험에 사용하였다. 그리고 각각의 적외선 카메라에서 하나의 포즈에 대한 정면 포즈와 옆면 포즈로 나눠서 획득한다. 획득한 적외선 포즈 영상은 SVM의 비선형 RBF 커널 함수를 이용하여 구분하였다. RBF 커널을 사용하면 비선형적 분류 포즈들간의 오분류 현상을 구분할 수 있다. 이렇게 구분된 포즈들의 연속은 HMM의 상태천이행렬을 이용하여 제스처로 인식된다. 인식된 제스처는 OS Value에 매핑하여 기존의 Application에 적용할 수 있다.

• 대한간호학회지
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• 제41권3호
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• pp.382-392
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• 2011

Purpose: This study was done to identify some natural meaning through the dosage experience of psychoactive drugs in women patients with schizophrenia. Methods: The Hermeneutic phenomenology written by van Manen was used. The period for data collection was from November 2009 to January 2010. This study took place in mental health hospitals and mental health centers in two cities in North Jeolla Province. Nine patients with schizophrenia participated. Data collection was done through individual in-depth interview. Results: The seven natural subjects demonstrated by participants from this study were 'Pills forcibly taken like veiled threats', 'A terrible side effect, a side effect rooted slowly', 'Shame which cannot be hidden as a woman', 'A bad medicine took away from motherhood', 'The fate of a wife who can't be equal', 'A struggle for the complete recovery without promise', and 'Participants want the future without medicine'. Conclusion: The results of this study indicate that the urgent need to develop a safe and believable psychoactive drug for woman patients considering the time of menstruation, pregnancy, childbirth, and child raising.

• 한국기계가공학회지
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• 제20권5호
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• pp.55-60
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• 2021

We applied an artificial neural network (ANN) and evaluated surface roughness prediction in lateral milling using an endmill. The selected workpiece was AL6061-T4 to obtain data of surface roughness measurement based on the spindle speed, feed, and depth of cut. The Bayesian optimization algorithm was applied to the number of nodes and the learning rate of each hidden layer to optimize the neural network. Experimental results show that the neural network applied to optimize using the Expected Improvement(EI) algorithm showed the best performance. Additionally, the predicted values do not exactly match during the neural network evaluation; however, the predicted tendency does march. Moreover, it is found that the neural network can be used to predict the surface roughness in the milling of aluminum alloy.

• 융합보안논문지
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• 제10권2호
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• pp.19-26
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• 2010

본 연구에서는 정보은닉을 위한 스테가노그라피에 대한 연구로서 은닉기법에서 비트 플레인 추출방법을 통하여 쉽게 나타나지는 문제점을 보완하였다. 즉, Cover 이미지에 Logo 이미지를 은닉함에 있어 비트 플레인 분산방식 후 Pack 형식을 이용한 코드 빈도 조사와 연속값 조사 등을 통해 압축하여 용량을 줄인 후, Embedding하며 그때 seed 값을 주어 암호화를 높임으로써 쉽게 추출당하지 않을 수 있도록 하였다. 비트 플레인 추출방법은 (0-7)비트 중 어느 한 해당하는 비트에 값을 넣기 때문에 특정 비트에서 값이 보여 지는 문제점이 발생하기 하므로 이를 보완하기 위해 Premutaion 후 흩어져 있는 로고 이미지를 한쪽으로 쉬프트 시키는 Permutation 보완작업과 비트 플레인 분산삽입 방식, 팩 형식의 압축 프로그램 등을 적용하였다.

• 한국농촌건축학회논문집
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• 제24권4호
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• pp.125-132
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• 2022

It can be seen that Traditional house of Jeong Si-yeong is located in a place where Saenggi(good energy), which is important in Pungsu(Feng Shui), can be gathered and that energy can be properly maintained. According to the theory of feng shui, a place that is not easily exposed by the surrounding mountains and is well protected by the strong wind was selected, and the main room was placed on the south side so that the sunlight was adequate while facing the north, so that you can live a comfortable life for a long time. Located on such a relatively well-hidden site, it is a location that can cope well with the invasion of Japanese invaders through the sea in the past, and even today, it is seen as a reasonable base that can be properly protected from strong sea winds in reality. On the other hand, if we look at the Hyungguk theory, it was a house built in the late Joseon Dynasty, and we could see the hidden hopes of the nobles at the time. The mountain behind the house is a haebok-type with a crab lying on the seashore, and what the crab symbolizes is the past national exam for official. Considering that the name of the place where the house is located is also Oyat(cucumber tree)-ri, where many cucumber trees closely related to the royal family of the Joseon Dynasty were planted, it seems that the family wished for prosperity by producing many Sadaebu(upper class gentry) in the past and forming a good relationship with the royal family.

• 한국가구학회지
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• 제23권2호
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• pp.122-129
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• 2012

This article was intended as fundamental materials to recognize the current status of furniture hard ware in Korean market and to fix the identity of Korean furniture, by investigating and comparing the furniture hard ware used in the Joseon era and in modern times by type, function, shape and material. The analysis of furniture hard ware of the Joseon era and modern times from the view of functional aspects was oriented to the hard ware necessary to open and close the door & drawer on one side, and to that being attached to the main body of furniture not to scratch the wood by another wood on the other side, and from this the following conclusion was drawn. First of all, "Gwangdoojung" - a kind of spike- and metal decoration on the edge of the furniture disappeared, while the function-oriented hard wares have been diversified in modern times, from the perspective of the change of kinds. Second, the functional aspect of the furniture hard ware was emphasized in modern times than the Joseon era. In other words, the hard wares of the Joseon era came into view due to their strong appeal to decoration, whereas those of modern times were mostly hidden or moderated, keeping the function substantially. Third, the hard wares from the Joseon era were shown in concrete and detailed shape motivated by natural objects and furthermore even gloriously, but the modern hard wares are simple & basic geometry, from a formative point of view. Fourth, the material aspects present that the Joseon era's hard ware was mainly cast iron, whereas that of modern times shows the diversification from metal to even plastic. Finally, the recent trend in naming of the hard wares is the words of foreign origin. This resulted from that the foreign names of hard wares are valid also after import process in Korean market, so the domestic development of hard ware as the essential factor for the furniture design is urgently necessary to establish the identity of Korean modern furniture.

• 대한두개안면성형외과학회지
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• 제22권4호
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• pp.183-192
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• 2021

Background: The purse-string suture (PSS) is a simple and rapid wound closure method that results in minimal scarring. It has been used to treat circular or oval skin defects caused by tumor excision or trauma. However, due to obscurity, it is not widely used, especially for the head and neck. This study aimed to modify the PSS to obtain predictable and acceptable results. Methods: A total of 45 sites in 39 patients with various types of skin and soft tissue defects in the head and neck were treated with PSS. We used PDS II (2-0 to 5-0), which is an absorbable suture. Minimal dissection of the subcutaneous layer was performed. The suture knot was hidden by placing it in the dissection layer. Depending on the characteristics of the skin and soft tissue defects, additional surgical interventions such as side-to-side advancement sutures, double PSS, or split-thickness skin graft were applied. Results: All wounds healed completely without any serious complications. Large defects up to 45 mm in diameter were successfully reconstructed using only PSS. Postoperative radiating folds were almost flattened after approximately 1-2 months. Conclusion: PSS is simple, rapid, and relatively free from surgical design. Owing to the circumferential advancement of the surrounding tissue, PSS always results in a smaller scar than the initial lesion and less distortion of the body structures around the wound in the completely healed defect. If the operator can predict the process of healing and immediate radiating folds, PSS could be a favorable option for round skin defects in the head and neck.

• 한방안이비인후피부과학회지
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• 제13권2호
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• pp.140-151
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• 2000

Acne is a common chronic disease which most frequently affects the face, appearing in both males and females near puberty, and in most cases becomes less active as adolescence ends. The intensity and duration of activity vary for each individual. The disease may be minor, with only a few comedones or papules, or it may occur as the highly inflammatory and diffusely scarring acne conglobation. Permanent scarring of the skin and psyche can result from such inaction. The disease, however, has implications far beyond the few marks that may appear on the face. The lesions cannot be hidden under clothing; each is prominently displayed and detracts significantly from one's personal appearance and self-esteem. Recently many of acne patients are visiting to Oriental Medicine Hospitals. They want to receive the treatment of acne related another disease and causes, or worry about side effects of antibiotics and hormone therapy. This study was performed at Pundang Cha Oriental Medicine Hospital Department of Dermatology from March 1, 1997 to February 29, 2000 in 31 patients with recurrent acne. We investigated the clinical findings, included distribution of age & sex, severity of acne, sites on face, related causes, duration of disease and causes of visiting Oriental Medicine Hospital and so on. The results were as follows : The peak age at onset was 20-29 years old in females with 16 cases reported. The 22 total cases patients had severe signs with most frequently sites being forehead & chin. They visited Oriental Medicine Hospital because they want to take the treatment of acne related with another body problems(12 cases) and worry about side effects of antibiotics. Twenty cases were diagnosed 肺熱血熱(20 cases). And given acupuncture treatment, herb-medication and sometimes we used external applications. Relatively, their satisfaction grade was high. Dermatologists are trying to treat new methods in order to remove scar and decrease sebaceous gland secretion,. And we, Oriental Medicine doctors, have to develop and offer to patients the most effective management and successful treatment of this disease.

• 한국응용곤충학회지
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• 제37권1호
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• pp.39-48
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• 1998

한국산 부전나비과 40종 2,850여 개체를 재료로 광학현미경으로 발향린의 유무 및 분포를 확인하였다. 이중 발향린이 확인, 관찰된 8종을 대상으로 주사전자현미경을 이용하여 미세구조를 비교하였다. 발향린이 관찰된 종은 Pseudozizera maha(K.), Celasrtina argiolus(L.), Everes argiades (P.), Lycaeides argyronmon(B.), Zizina otis(F.), Maculinea arionides(S.), M. teleius(B.), Niphanda fusca(B. et G.)등 8종이었다. 암컷에서는 발향린이 관찰되지 않았고 수컷에서만 확인되었으며, 앞날개의 표면과 이면, 그리고 뒷날개의 표면에서 관찰되었다. 발향린은 주로 중맥, 주맥, 둔맥에 분포하였으며 종별로 형태적 차이를 보였다. 확인, 관찰된 8종의 발향린은 잎새, 자루병반만을 가지는 단순한 모양을 나타내었다. Niphanda fusca는 잎새모양과 자루병반의 위치 등 많은 차이점이 확인되었으며, Pseudozizeera maha, Everes argiades등 2종에서는 두가지 형태의 발향린이 관찰되었다. 본 연구에서는 관찰된 8종은 모두 Polymmatina아과에 속하였다. 이중 Niphanda fusca는 Niphandini족에 속하며 나머지는 Polymmatini족에 속하였다.