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      • KCI등재

        BASIC 언어를 사용한 Hill-Sliding 무감독 분류법 Algorithm 개발

        정몽현 ( Mong Hyun Chung ),최규홍 ( Kyu Hong Choi ),박경윤 ( J. Kyoungyoon Park ) 大韓遠隔探査學會 1985 大韓遠隔探査學會誌 Vol.1 No.1

        Hill-Sliding Clustering이라는 다변량 자료의 무감독 분류방법을 Apple Ⅱ personal computer의 BASIC 언어를 사용한 Algorithm으로 개발하였다. 이 Algorithm으로 다변량 multimode를 갖는 정규 분포 자료에서 사전 지식없이 자료를 집단화하여 구분해 낼 수 있게 되었다. 한국 연안 지역의 Landsat (지구 자원 탐사 위성)의 다중 Spectrum 영상자료에 적용한 시험결과, 매우 고무적 결론을 얻었다. An algorithm for the Hill-Sliding Clustering (HSC) method was developed using the BASIC language for Apple II personal computer. It was designed for initialization of clusters from multivariate multimodal Gaussian data. Landsat multispectral imagery data of a Korean coastal area were used for its performance test. The test showed encouraging results.

      • KCI등재

        성인의 급성 심장사에서 정상 심장례의 분석

        강신몽,이원태,이한영,서중석,최영식,권일훈,정낙은 大韓法醫學會 2000 대한법의학회지 Vol.24 No.2

        The authors analysed 53 cases of sudden cardiac death(SCD) without prominent structural abnormalies of heart out of witnessed 300 cases. Thirty four cases were associated with sleep and 19 with activity or rest. Twenty one cases were classified as having normal hearts, and the rest as structurally mild abnormal ones. Male was predominant, and almost of the victims were suffered in their twenties or thirties. All cases collapsed instantaneously or in very short time with various and not specific terminal symptoms. Inducing or trigger factors are not clarified in almost of the cases. Mechanisms or causes of death could not be defined clearly. We concluded that careful heart examination with detailed clinical history under the appropriate postmortem investigation system is only effective approach for the true mechanism and cause of death.

      • 一部勤勞者의 自覺的疲勞症狀에 關한 調査

        方蒙淑,方聖祐,文宰奎,鄭耀翰 朝鮮大學校 醫學硏究所 1982 The Medical Journal of Chosun University Vol.7 No.-

        This study is an attempt to investigate questionaires on physical, mental and neuro-sensory subjective fatigue symptoms, which were answered by 1,339 workers(male : 758, female : 581) in industries located in Choellanamdo Province between March 1, 1981 and April 30, 1981. All data from this study was classified and collected according to length of work in industry, age, sex and type. The results obtained from this data were as follows ; 1. Subjective fatigue symptoms for most of the total workers were type Ⅱ deminant. 2. Subjective fatigue symptoms increased in male workers more than in female workers both before and after work. 3. The rate for the male workers by occupation were most increased in miners and quaryman for before work(physical : 24.0%, mental : 14.5%, neuro-sensory : 16.7%) and after work(physical : 56.7%, mental : 43.2%, neuro-sensory : 42.7%), and second-most increased in chemical processors, food processors, weavers and spinners, electrial fitters and releated workers. These symptoms were lowest in clerks in both before work(physical : 10.0%, mental : 13.0%, neuro-sensory : 7.0 %) and after work(physical : 25.5%, mental : 16.8%, neuro-sensory : 15.6%) 4. The rate of subjective fatigue symptoms in female workers was highest in weavers and spinners both before work(physical : 19.8%, mental : 16.8%, neuro-sensory : 15.6%), and after work(physical : 42.8%, mental : 34.9%, neuro-sensory : 29.5%). Food processor and clerks were next to the weavers and spinners and dry and handcraft manufacturers were the lowest in both before work(physical : 16.0%, mental : 2.2%, neuro-sensory : 5.0%) and after work (physical : 28.5%, mental : 16.9%, neuro-sensory : 10.2%). 5. According to years of continuous service, the rates of subjective fatigue symptoms for male workers before work were not specific in physical and mental fatigue symptoms only. But the rates of subjective fatigue symptoms increased in proportion to length of service. 6. According to age of workers, the rates of subjective fatigue symptoms before work and after work in both male and female workers increased on the basis of worker's age. 7. No relationship between blood type and subjective fatigue symptoms was observed.

      • 영상압축을 위한 SPIHT 알고리즘의 효율적인 하드웨어 설계

        유몽 ( Mong Yu ),송문빈 ( Moonbin Song ),정연모 ( Yunmo Chung ) 한국정보처리학회 2004 한국정보처리학회 학술대회논문집 Vol.11 No.2

        This paper proposes an efficient hardware implementation of SPIHT(Set Partitoning In Hierarchical Tree) algorithm for image compression with the discrete wavelet transform. An efficient technique to scan the coefficients which are located in partitioned spatial orientation trees by DWT is considered in terms of counter fields for sorting pass and refinement pass. The proposed image compression method using SPIHT has been modeled in VHDL and has been implemented by use of both TMS320C6000 as a DSP and Virtex2 as a Xilinx FPGA.

      • 소아 천식에서의 IgG 아형에 대한 조사

        이몽영(Mong Young Lee),김창근(Chang Geun Kim),함영백(Young Baek Hahm),정철영(Churl Young Chung) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 1995 소아알레르기 및 호흡기학회지 Vol.5 No.1

        N/A The importance of respiratory infection in precipitating attacks of asthma is well known . Recently , deficiencies ofIgG limited to one or more subclasses have been recognized in children with recurrent infections . We report the results of measurements of serum immunoglobulins and IgG subclasses in young children with recurrent wheezy bronchitis(RWB) . We studies 40 patients , all of whom visited the Department of Pediatrics , Sanggye Paik Hospital . Serum immunoglobulins and IgG subclasses were measureed in children who had 3 or more recurrent wheezy bronchitis under 24 months of age(Group A) were comp ared with age matched normal control subjects(Group B) , and RWB patients over 24 months of age(GroupC)There was significant decreased IgG₄ level in RWB patients under 24 months of age compared with age matched normal control group . Therefore, IgG₄ deficiency is one of the most important precipitating cause of RWB patients under 24 months of age. But , older children over 24 months of age, IgE mediated allergic response is more important cause of RWB.

      • 一部農村住民의 傷病에 關한 考察

        方蒙淑,文宰奎,鄭耀翰 朝鮮大學校 醫學硏究所 1982 The Medical Journal of Chosun University Vol.7 No.-

        In order to study the morbidity rate, kind of sickness and demand for medical care in a rural area of Cheonnam province, the survey was performed on 82 households comprising 408 persons during a one month period of April 1 to 30, 1981. The findings from the study was as follows: 1. The number of persons per household was approximately 5.0 person. 2. For the poulation composition, the age group of 10 to 14 years constituted 19.1% of the population, the group of 5 to 9 years was 11.8% and the group of 0 to 4 years was 6.6%. The worthy of notice was the proportion gradually decreased as age decrease. 3. During the period of survey(Apr. 1 to 30, 1981), the morbidity rate reached 247.2 per 1,000 persons. At the age group of 10 to 14 years was lowest at 153.8 and gradually increased by aging. At the group of 60 to 69 years was highest at 394.7. The morbidity rate of male persons at the group of 10 to 14 years was lowest at 137.0. Especially the morbidity of female person was higher conspicuously than that of male person after the group of 25 to 29 years and it was a matter for consideration on maternal health care. 4. The distribution of the disease showed 24.8% in the gastrointestinal system, 20.2% in the respiratory system, 11.9% in the dental cases, 8.2% in the disease of skin and subcutaneous tissue in respectively. 5. The demand for medical care showed that 51.4% utilized drug store, 25.7% utilized hospitals and heath center, 8.3% utilized herb drugs and the rest without medical care was 9.1% out of patients.

      • SCOPUSKCI등재

        우췌양혈관종 ( Verrucous Hemangioma ) 의 2 예

        조정구,이철현,차몽기,김홍직,김도한,서원필 대한피부과학회 1982 大韓皮膚科學會誌 Vol.20 No.2

        Verrucous hemangioma is a variant of a capillary, cavernous, or mixed hemangioma which undergoes a reactive proliferative epidermal change. Most verrucous hemangiomas appear on the lower extremities, and most are present at birth or appear during childhood. We observed two patients who showed typical clinical and histopathological findings of verrucous hemangioma. Treatment was done by wide surgical excision and skin graft. The first male patient had a good therapeutic result but the second female patient had a recurrence at one month post-operative.

      • SCIESCOPUSKCI등재

        Oral rehabilitation for a patient with oligodontia and maxillary hypoplasia

        Da-Woon Chung,Mong-Sook Vang,Sang-Won Park,Hyun-Pil Lim,Hong-So Yang 대한치과보철학회 2009 The Journal of Advanced Prosthodontics Vol.1 No.1

        An 18 year old female with oligodontia and maxillary hypoplasia was treated using an interdisciplinary team approach involving orthodontists, maxillofacial surgeons and prosthodontists. Full mouth one-piece fixed partial dentures were the final restoration. The fixed partial dentures fabricated for the maxilla and mandible using the concept of a shortened dental arch resulted in improved esthetics and the masticatory function. This paper describes the treatment procedures for an oligodontia patient with alveolar bone hypoplasia.

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