iPhone의 SNS 데이터 수집 및 디지털 포렌식 분석 기법

정진형,변근덕,이상진,Jung, Jin-Hyung,Byun, Keun-Duck,Lee, Sang-Jin 한국정보처리학회 2011 정보처리학회논문지 C : 정보통신,정보보안 Vol.18 No.4

최근 다양한 스마트폰이 개발 보급되면서 SNS(Social Network Service)를 사용하는 사용자 또한 급격히 증가하였다. SNS는 기존 모바일 기기에서 수집할 수 있었던 문자 및 통화내역과 같은 단순한 사용자 데이터 외에도 주고 받은 사진 및 동영상, 음성쪽지나 위치 공유, 대화 내역 등 다양한 정보가 저장되어 디지털 포렌식 관점에서 유용한 데이터 획득이 가능하다. 본 논문에서는 최근 많이 사용하고 있는 아이폰을 대상으로 스마트폰에서 이용할 수 있는 SNS 클라이언트와 각 클라이언트 별로 수집할 수 있는 데이터의 종류를 살펴본다. 또, 각 데이터간의 연관관계를 통해 수집된 데이터의 효율적인 분석 방법을 제시한다. As a diverse range of smartphones has been recently developed and diffused, the users of SNS (Social Network Service) also have been sharply increased. The SNS saves a variety of information such as exchanged pictures and videos, voice mails or location sharing, chat history, etc. as well as simple user data, so that the acquisition of data that are useful in the aspect of digital forensic is achievable. This thesis reviews the types of SNS that are available for the iPhone, a recent example of highly used smartphones, and types of data by each client. Also, efficient data analysis method for digital forensic investigations is suggested by analyzing the relationships within the collected data by each client.

위암의 중의약 치료에 대한 문헌적 고찰

정진형,서정철,곽민아,손기철,Jung, Jin-Hyung,Seo, Jung-Chul,Kwak, Min-Ah,Sohn, Ki-Cheul 대한한방내과학회 2014 大韓韓方內科學會誌 Vol.35 No.3

Objectives: This study was investigated in order to analyse the characteristics of recent Chinese medicine treatment of gastric cancer, and provide literature basis for the development of effective therapy of gastric cancer by reviewing Chinese journals. Methods: The literature on Chinese medicine treatment of gastric cancer were collected, analyzed and summarized from the China National Knowledge Infrastructure (CNKI) from 2000 to 2013. Results: Physicians have not shown consistent opinion with the pattern identification of gastric cancer. Recently, traditional Chinese Medicine patent prescriptions have been much used in the treatment of gastric cancer, which is classified into the reinforcement of healthy qi and elimination of the pathogenic factors. Chinese medicine combined with western medicine can improve the immune system and quality of life, while reducing toxic side effects. Conclusions: Further studies on traditional Chinese Medicine are needed to increase the survival rate of gastric cancer and effectiveness of combination therapy with western medicine.

갑상선암 환자에서 전절제술 후 I-131 치료에서 미만성 간침착 정도의 분석

정진형(Jin Hyung Jung),배금석(Keum Seok Bae),강성준(Seong Joon Kang) 대한두경부종양학회 2000 대한두경부 종양학회지 Vol.16 No.2

Objectives: Any uptake of I-131 after total thyroidectomy means the remant thyroid tissue or distant metastasis of the thyroid cancer. However diffuse hepatic uptake of I-131 without abnormal uptake was showen in many cases on I-131 whole body scan. The aim of this study was to classify the liver uptake after I-131 scan and to evaluate the analysis of this finding. Materials and Methods: Between 1982 and 1998, 104 patients(l4 males, 90 females) with normal liver function underwent I-131 scan after total thyroidectomy. Prospectively we reviewed the films of the whole body scan and analysed the correlations between results of radioiodine uptake, pathologic diagnosis, prognostic factors, lymphatic metastasis, and thyroid function test. Result: Diffuse hepatic uptake was found in 44 of 104(42%) patients. 10 of 39(26%) patients on I-131 100mCi, and 34 of 63(54%) on I-131 150mCi showed hepatic uptake. 52 of 104(50%) patients was locally invasive thyroid cancer. The rate of the hepatic uptake was no significant differences with the thyroid hormone levels(T3, Free T4) and thyroglobulin between uptake group and non-uptake group. Conclusion: The rate of I-131 uptake was high in high-dose radioiodine treatment group. However, we can not find any correlation among the thyroid functions, the extent of metastasis or the extent of local invasion. We need further study to find out the causes of the hepatic uptake of I-131 after total thyroidectomy, besides liver metabolism of I-131 attached thyroid hormones.

불면증 변증도구 신뢰도와 타당도 평가 및 심리검사와의 상관성에 대한 초기연구

정진형 ( Jin-hyung Jeong ),이지윤 ( Ji-yoon Lee ),김주연 ( Ju-yeon Kim ),김시연 ( Si-yeon Kim ),강위창 ( Wee-chang Kang ),임정화 ( Jung Hwa Lim ),김보경 ( Bo Kyung Kim ),정인철 ( In Chul Jung ) 대한한방신경정신과학회 2020 동의신경정신과학회지 Vol.31 No.1

Objectives: The purpose of this study was to evaluate the reliability and validity of the instrument on pattern identification for insomnia (PIT-Insomnia) and verify the correlation between PIT-Insomnia and psychological tests. Methods: Two evaluators examined the pattern identification of the participants who met insomnia disorder diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorder, Fifth Edition (DSM-5) and took the Insomnia Severity Index (ISI) score over 15 once manually and twice using the PIT-Insomnia to measure the inter-rater and test-retest reliability. We also conducted the following surveys: the Pittsburgh Sleep Quality Index (PSQI), the Korean version of Beck’s depression inventory (K-BDI), the Korean version of the State-Trait Anxiety Inventory (STAI-K), the Korean Symptom checklist- 95 (KSCL-95), and the EuroQol-5 dimension (EQ-5D), to measure concurrent validity and correlation between the PTI-Insomnia and psychological tests. Results: 1. The test-retest reliability analysis of the pattern identification results showed moderate agreement, and test-retest reliability analysis of each pattern identification score showed agreements from poor to moderate. 2. The inter-rater reliability analysis of the pattern identification results via manual showed slight agreement, when analysis was performed with calibration, the inter-rater reliability analysis of the pattern identification results via manual showed fair agreement. 3. The concordance analysis between results via manual and the PIT-Insomnia showed poor agreement, when the analysis was performed with calibration, concordance analysis showed fair agreement. 4. The concordance analysis between the PIT-Insomnia and the PSQI showed positive linear correlation. 5. The concordance analysis between the PIT-Insomnia and the PSQI, K-BDI, STAI-K, KSCL-95, and EQ-5D showed that non-interaction between the heart and kidney have positive linear correlation with the K-BDI, anxiety item of KSCL-95, dual deficiency of the heart-spleen have positive linear correlation with somatization item of KSCL-95, paranoia item of KSCL-95, heart deficiency with timidity have positive linear correlation with stress vulnerability item of KSCL-95, parania item of KSCL-95, phlegm-fire harassing the heart have positive linear correlation with K-BDI, paranoia item of KSCL-95, depressed liver qi transforming into fire have positive linear correlation with the anxiety item of KSCL-95, parania item of KSCL-95, all pattern identification have negative linear correlation with EQ-5D. Conclusions: The PIT-Insomnia has moderate agreement of reliability and reflects the severity of insomnia since it has some concurrent validity with the PSQI. There are some correlations between the PTI-Insomnia with specific psychological tests, so we could suggest it can be used appropriately in the clinical situation.

수면다원검사를 적용한 호흡관련 수면장애 한약 치료 3례 증례 보고

정진형 ( Jin-hyung Jeong ),정인철 ( In-chul Jung ),김원일 ( Won-il Kim ),김보경 ( Bo-kyung Kim ) 대한한방신경정신과학회 2020 동의신경정신과학회지 Vol.31 No.4

Objectives: This case report intended to examine how herbal medicine treatment for breathing-related sleep disorders applied with polysomnography affected the structure of sleep. Methods: From January to November 2019, we retrospectively reviewed the progress records and polysomnography reports of patients who visited Korean medical hospitals in Daejeon and Cheonan. Results: In case 1, the patient complained of daytime sleepiness and snoring and was diagnosed with obstructive sleep apnea disorder and treated with Ukgan-san-gami. There were significant changes in the polysomnographic parameters, such as sleep efficiency, waking after sleep onset, sleep latency, the total arousal index, and the apnea-hypopnea index after herbal treatment. In case 2, the patient complained of frequent waking after sleep onset, daytime sleepiness, and snoring, and was diagnosed with obstructive sleep apnea disorder and treated with Yeoldahanso-tang-gami. There were significant changes in the polysomnographic parameters, such as the total arousal index and the apnea-hypopnea index after herbal treatment. In case 3, the patient complained of daytime sleepiness and was diagnosed with obstructive sleep apnea disorder and treated with Bangpungtongsung-san. There was no significant change in the polysomnographic parameters after herbal treatment. Conclusions: It is meaningful to note that objectively identifying the outcome of treatment for breathing- related sleep disorders is necessary in the clinical practice of Korean medicine.

연구보문 : 한국과 호주의 쇠고기 이력시스템 운영사례 조사 비교 연구

정진형 ( Jin Hyung Cheong ),손경자 ( Kyung Ja Son ),이상수 ( Sang Soo Lee ),김철중 ( Cheol Jung Kim ),김기범 ( Ki Beom Kim ),윤영권 ( Young Kwon Yun ) 한국국제농업개발학회 2011 韓國國際農業開發學會誌 Vol.23 No.2

이 연구에서는 호주의 쇠고기 이력시스템 운영사례를 조사한 결과를 제시하였다. 호주의 경우, 쇠고기 이력시스템은 1999년 빅토리아 주에서 처음 도입하여, 2004년부터 의무 시행되고 있다. 추진체계는 정부와 민간으로 구성된 SAFEMEAT에 의해 관리되고 있으며, 개체식별방법은 RFID에 의한 귀표를 부착하고 있다. 정보의 관리범위는 질병 등 문제발생을 사전 방지하기 위해 농장에 소가 거주하게 되면 해당 토양의 화학성분, 질병잔여물, 호르몬 성장요법 잔여물 등에 대한 이상이 없는 경우에만 농장등록이 가능토록 되어있고, 귀표는 RFID시스템에 의해 관리되고 있고, 소의 신고방법은 양도시 양도자에게만 신고의 의무를 부여하고 있다. 또한 유통단계에서는 도축이후 표준화된 EAN·UCC바코드 체계를 구축하고 있었다. 이러한 호주의 Traceability System사례조사를 통하여 우리나라에서도 이력관리의 문제발생시 신속한 추적과 문제발생을 최소화하기 위해서는 향후 동물건강을 고려 한 이력시스템에 대한 신고범위 확대를 통한 가칭 "출하이동증명서(NVD)" 시스템의 도입과 신속하고 정확한 이력관리가 가능한 RFID 기술의 연차적 도입 및 축산물의 물류관리에 필요한 속성 정보가 포함되어 적용될 수 있는 국가단위의 바코 드 표준 가이드라인 마련이 필요하다고 하겠다. This study was conducted to compare the cattle and beef traceability systems between Korea and Australia. The Beef Traceability System in Korea has started from December 2008 as a mandatory system. Korean system adopted an animal identification number consisting of 12 digit numbers fitted for a bar-code system. The system also adopted DNA identity inspection scheme on breeding step, slaughtering step, processing step, and selling step. However, our system does not have National Vendor Declaration(NVD), Radio Frequency Identification(RFID) system and uniform barcording system for meat products. On the other hand, Australia has performed the traceability system since 2004 after the pilot program which was first introduced to Victoria in 1999. Australian Beef Traceability System has been operated by RFID, NVD and uniform barcoding system. RFID devices applied prior to calves leaving the property on which they were born. These RFID devices can be either ear tags or rumen bolus/ear tag combinations. NVD system has been introduced to document the history of chemical use and treatment of animals. From Australian beef traceability experiences, introducing NVD, RFID and uniform barcoding system in korea is important to extend a health-related record and save trace-back time. This paper suggests that introducing NVD, RFID and uniform barcoding system can provide information efficiently for the meat industry supply chain and maximize consumers` satisfaction.

주거개발사업의 환경영향평가제도 개선방향

김흥식,정진형,최명수,안정근,김상규,김종대,전주영 ( Heung Sik Kim,Jin Hyung Jeong,Myung Soo Choi,Jung Geun An,Sang Gyu Kim,Jong Dae Kim,Chu Young Chun ) 한국환경영향평가학회 1998 환경영향평가 Vol.7 No.1

The present study was performed to improve the Environmental Impact Assessment system by comparing and analysing EIA systems for Residential Developments in the light of the business practice. For the improvement of EIA system, future strategies from each of three part ; the organ of approval(Construction&Transportation Dept.) for residential developments, the organ of consultation(Environment Dept.) for EIA and a developer(Korea Nation Housing Corp.), were analysed, and EIA systems and the processes of Residential developments were analysed. Results from the analysis of problems have provided a proposal for improvement of the Environmental Impact Assessment.

백두옹 추출물의 치주조직 세포에 활성도 및 항염 효과에 관한 연구

정진광,정진형,임성빈,김정근,소은희,Jung, Jin-Gwang,Chung, Chin-Hyung,Lim, Sung-Bin,Kim, Jung-Keun,So, Eun-Hee 대한치주과학회 2001 Journal of Periodontal & Implant Science Vol.31 No.1

This study was performed to define the cytotoxicity and the anti-inflammatory action of Pulsatilla koreana extracts. To analyze cytotoxic effects, gingival and periodontal ligament fibroblasts were used, and anti-inflammatory actions related to reduction of $IL-1{\beta}$ and $PGE_2$ production were performed in vitro, for the suggestion of efficacy and safety on periodontal therapeutic use of Pulsatilla koreana extracts. We extracted ethylacetate and butylalcohol from well-dried and ground Pulsatilla koreana throughout multiple processing, then used different concentration solution(0.1 %, 0.2 %, 0.4 %, 0.01 %, 0.02 %, 0.04 %, 1 %, 2 %) of ethylacetate and butylalcohol extracts to examine eytotoxic effects and anti-inflammatory actions Cytotoxic effects were examined by ELISA reader using MTT(Methyl Thiazol-2-YL-2, 5-diphenyl Tetrazolium bromide)solution following culture of human gingival and periodontal ligament fibroblasts. Synthesis of $IL-1{\beta}$was examined by $IL-1{\beta}$ enzyme-immunoassay(EIA)system after separation and culture of monocyte, and $PGE_2$ was examined by $PGE_2EIA$ system after culture of gingival fibroblasts. The results were as follows: 1. In the MTT test of gingival fibroblasts, the change of optical density was decreased significantly at 2 % of butylalcohol extracts and 0.04 %, 0.1 %, 0.2 %, 0.4 %, 1 %, 2 % of ethylacetate extracts.(p<0.05) 2. In the MTT test of periodontal ligament cells, the change of optical density were not differ significantly. but butylalcohol and ethylacetate extracts except from butylalcohol 0.01 % showed high cell cytotoxity. 3. Both ethylacetate and butylalcohol extracts from Pulsatilla koreana inhibited the synthesis of $IL-1{\beta}$and inhibition effect of ethylacetate extracts were higher than butylalcohol extracts. 4. Both ethylacetate and butylalcohol extracts from Pulsatilla koreana inhibited the synthesis of $PGE_2$, and ethylacetate extracts were higher than butylalcohol extracts. In conclusion, ethylacetate and butylalcohol extracts from Pulsatilla koreana showed little cell cytotoxity for gingival and periodontal ligament fibroblasts, and the inhibition of $IL-1{\beta}$ and $PGE_2$ sysnthesis, therefore it is considered that these extracts can be developed as the therapeutics of the periodontal disease.

주거개발사업의 환경영향평가제도 개선방향

김흥식,정진형,최명수,안정근,김상규,김종대,전주영,Kim, Heung-Sik,Jeong, Jin-Hyung,Choi, Myung-Soo,An, Jung-Geun,Kim, Sang-Gyu,Kim, Jong-Dae,Chun, Chu-Young 한국환경영향평가학회 1998 환경영향평가 Vol.7 No.1

The present study was performed to improve the Environmental Impact Assessment system by comparing and analysing EIA systems for Residential Developments in the light of the business practice. For the improvement of EIA system, future strategies from each of three part ; the organ of approval(Construction&Transportation Dept.) for residential developments, the organ of consultation(Environment Dept.) for EIA and a developer(Korea Nation Housing Corp.), were analysed, and EIA systems and the processes of Residential developments were analysed. Results from the analysis of problems have provided a proposal for improvement of the Environmental Impact Assessment.

어린 백서에서 패혈증으로 유발된 다발성 장기 부전증의 특성

유수영,노광수,정진형,김일호,고용택,Yoo, Soo-Young,Roh, Kwang-Soo,Jung, Jin-Hyung,Kim, Il-Ho,Ko, Yong-Taek 대한소아외과학회 2000 소아외과 Vol.6 No.1

Multisystem organ failure resulting from gram negative bacterial sepsis is associated with high morbidity and mortality in surgical neonates. There are differences in the clinical characteristics of organ failure in neonates and adults. The purpose of this study is to identify the differences and determine the order of organ failure between baby rats and adult rats after induction of gram negative sepsis. Fifty baby rats less than 30-day-old and another 50 adult rats more than 2-month-old were divided into control group (G1) and experimental group (G2). The G1 consisted of 10 baby- and 10 adult-rats, and the G2 consisted of 40 babies and 40 adults. E. coli ($10^8/mL$ per 100g of body weight) were injected into the peritoneal cavity in G2 and same amount of saline was injected in G 1. Blood samples were obtained before injection, 24 hour, 48 hour, 72 hour and after death. WEC, platelet, $PaO_2$, $PaCO_2$, total bilirubin, BUN, creatinine, albumin and abdominal wall thickness were measured to evaluate the sequence of organ failure. The mortality was 55.0 % in G2-babies and 32.5 % in G2-adults. In baby rats, microvascular, hematologic and renal failure appeared within 24 hours after injection and pulmonary failure followed. Pulmonary, renal and liver failure developed within 24-48 hours in adult rats; however, microvascular failure did not appear until they were moribund. Thrombocytopenia, hypoalbuminemia, increased BUN and generalized edema was the earlist sign of sepsis in baby rats.