• 융합보안논문지
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• 제21권1호
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• pp.79-92
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• 2021

ICT기술이 융합되는 사회에서는 IoT 등 다양한 네트워크 연결기기의 사용이 확산되어지고 있다. 네트워크 연결 기기들은 필연적으로 정보 유출 등 해킹의 위협에 노출되며, 이를 대응하기 위한 대책 마련이 필요하다. 해외에서도 ICT 융합기기 대상 설계부터 보안을 고려한 제품 생산 및 판매를 촉진하기 위해 보안인증을 도입하고 있으며, 이를 위해 법제화 및 인증기준과 방법을 표준화하는 작업이 진행되고 있다. 국내에서도 이에 발맞추어 2020년 정보통신망법이 개정되면서 네트워크에 연결된 ICT 융합기기를 '정보통신망 연결기기등'으로 새롭게 정의하고, 보안인증제도 근거를 마련하였다. 관련 국내외 동향을 살펴보고 국내 보안인증 제도를 구현하기 위한 구체적인 고려사항들을 정리해 인증수행체계, 인증등급, 인증마크, 인증수수료, 변경관리, 인증유효기간 등과 중장기적 발전방향을 제안하였다.

• Safety and Health at Work
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• 제12권1호
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• pp.35-41
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• 2021

Introduction: Training standards for long-haul truck drivers (LHTD) are rapidly evolving in Canada, yet the opinions of the drivers themselves have not been adequately considered. The purpose was to survey LHTD on their work training history and to examine LHTD perceptions of driver training and licensing protocols. Methods: LHTD were recruited across two Western Canadian provinces from seven different truck stops. The sample completed 207 surveys and 67 semi-structured interviews. Results: The average age of the participants was 52.5 ± 11.5 years (range 24-79); 96% were men. Approximately 33% of the LHTD had at least one crash. Those who did not receive formal driver training were significantly more likely to crash than those who had received training. Participants stated that current training standards are inadequate for the industry, particularly for new drivers. According to participants, entry-level curriculums should consist of both classroom and practical training, as well as on-road observation with a senior mentor. LHTD reported that many new drivers are not equipped to drive in various contexts and settings (e.g., mountains, slippery roads). Conclusions: LHTD are not confident in the current training guidelines for novice truck drivers. Revisions to the training curriculum and standardization across Canada should be considered. Practical Application: A federal mandatory entry-level training program is needed in Canada to ensure that all new LHTD ascertain the necessary skills to drive safely. Such a program requires government involvement and input from LHTD to facilitate appropriate licensure and consistent training for all drivers.

• 한국정보통신학회논문지
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• 제25권4호
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• pp.603-610
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• 2021

본 논문에서는 사용자의 전력소비패턴을 추출하고 사용자의 환경 및 감성을 적용한 최적 소비패턴을 모델링한 후, 이 두 가지의 패턴을 비교 적용하여 사용자의 전력소비행위 변화를 통한 전력의 효율적 사용 방법을 제시한다. 유의미한 소비패턴을 추출하기 위하여 벡터 표준화 및 이진 데이터 변환방법을 사용하고, k-평균 군집화를 적용한 앙상블의 합집합에 대한 학습과 k값에 따른 지지도를 적용하였으며, 최적 전력소비패턴 모델은 상대적 평균 소비량이 적은 앙상블 합집합에 대한 학습 결과를 기준으로 강제 및 감성 제어를 적용하여 생성하였다. 실험을 통하여 전력소비행위 변화 유도대상 추출 시 클러스터의 수와 일치율 간의 상관관계를 파악함으로써, 사용자의 의도에 따라 강제 및 감성 기반의 제어가 가능하도록 클러스터의 수나 크기 조절을 통한 다양한 윈도우에 적용할 수 있음을 검증하였다.

• 산업진흥연구
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• 제6권2호
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• pp.11-20
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• 2021

본 연구는 지방대학 거점의 시대에 맞추어, 학교 주변 혁신파크 생태계 조성을 통해 지역경제 활성화와 일자리 창출 등 환경 기반 조성을 목적으로 2021년 02월 15일부터 02월 21일까지 6일간에 걸쳐 기업체, 개인사업자, 개인(창업예정자) 및 2021년 지방 S대 캠퍼스 혁신파크 입주의향서에 기재된 업체를 포함한 총 402명을 대상으로 고객 수요에 대한 현황을 조사하였다. 회귀분석 결과 캠퍼스 혁신파크 수요자 중심의 수립방안에 영향을 미치는 요인으로는 미래지향적(47%)으로 나타났고(p<.05), 표준화 계수 𝛽값은 미래지향적(𝛽=.479), 환경분석 및 정책(𝛽=.047)으로 분석되었으며, 혁신파크 수요자 중심에는 환경분석 및 정책 보다 미래지향적이 더 큰 영향력이 미치는 것으로 확인되었다. 본 연구는 지방 S대학교 캠퍼스 혁신파크 조성사업과 관련된 수요자와 기업체 요구사항을 파악하여 효율적인 혁신파크 조성 수립방안을 제시하는데 연구의 의의가 있다.

• 정보보호학회논문지
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• 제22권1호
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• pp.141-153
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• 2012

클라우드 컴퓨팅 서비스의 표준화 작업을 위해 클라우드 컴퓨팅 서비스에 대한 유즈 케이스와 요구사항 연구가 이루어지고 있지만 클라우드 컴퓨팅 환경의 운영 방법에 대한 연구 자체는 미비하다. 본 논문은 IaaS 클라우드 컴퓨팅 환경의 운영 방법을 기존의 통합보안관리시스템과 연계하여 제안한다. CloudStack 2.2.4 테스트베드를 활용하여 IaaS 클라우드 컴퓨팅 환경을 구축한 SWU-IaaS 클라우드 구조를 먼저 제안한다. 이러한 SWU-IaaS 클라우드 운영을 통해 IaaS 클라우드의 계층적인 구조와 구성요소들에 대한 속성 및 기능을 도출한다. 아울러 IaaS 클라우드 서비스를 정상(normal)적인 상태와 비정상(abnormal)적인 상태로 구분하여 각각의 시나리오를 제시한 후 통합보안 관리시스템으로부터 전달되는 보안 이벤트에 대하여 IaaS 클라우드 서비스의 운영 시나리오를 제안한다.

• Journal of Ginseng Research
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• 제45권2호
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• pp.246-253
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• 2021

Background: Ginseng is one of the most valuable herbal supplements. It is challenging to perform quality control of ginseng products due to the diversity of bioactive saponins in their composition. Acid or alkaline hydrolysis is often used for the structural elucidation of these saponins and sugars in their side chains. Complete transformation of the original ginsenosides into their aglycones during the hydrolysis is one of the ways to determine a total saponin group content. The main hurdle of this approach is the formation of various by-products that was reported by many authors. Methods: Separate HPLC assessment of the total protopanaxadiol, protopanaxatriol and ocotillol ginsenoside contents is a viable alternative to the determination of characteristic biomarkers of these saponin groups, such as ginsenoside Rf and pseudoginsenoside F₁₁, which are commonly used for authentication of P. ginseng Meyer and P. quinquefolius L. samples respectively. Moreover, total ginsenoside content is an ideal aggregated parameter for standardization and quality control of ginseng-based medicines, because it can be directly applied for saponin dosage calculation. Results: Different hydrolysis conditions were tested to develop accurate quantification method for the elucidation of total ginsenoside contents in herbal products. Linearity, limits of quantification, limits of detection, accuracy and precision were evaluated for the developed HPLC-MS method. Conclusion: Alkaline hydrolysis results in fewer by-products than sugar elimination in acidic conditions. An equimolar response, as a key parameter for quantification, was established for several major ginsenosides. The developed approach has shown acceptable results in the analysis of several different herbal products.

• 셀메드
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• 제11권3호
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• pp.14.1-14.9
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• 2021

Background: Cuscuta reflexa Roxb is a member of the Cuscutaceae family, and in Unani medicine, it is known as Aftimoon. It is a parasitic plant that can be found growing abundantly on various host plants in India up to 3000 metres in altitude during the rainy season. Unani physicians have been using it for years to cure a variety of illnesses, including psychiatric illnesses like melancholia, schizophrenia, and epilepsy. It has been used to cure hepatitis, palpitations, and skin disorders, among other things. Objective of the study: To evaluate anti-anxiety effect of Cuscuta reflexa Roxb in Swiss Albino mice of either sex. Materials and Methods: A total of 24 Swiss Albino mice weighing 25-35 g were used in this study. Animals were chosen at random and held in their cages for at least 7 days in a standard setting. Group A was given regular saline as a vehicle, Group B was given a hydro alcoholic extract of the lower dose of the test drug, Group C was given a hydro alcoholic extract of the higher dose of the test drug, and Group D was given the standard drug Diazepam 5 mg/kg orally. Aftimoon as hydro alcoholic extract (200 mg/kg and 400 mg/kg body wt.) was given in single and double doses and observed for 7 days. Results: For each parameter in each category, mean and standard deviations were computed. For multiple group comparisons, a one-way ANOVA was used, followed by Turkey's post hoc test. (p<0.05) was used as the significance standard. Conclusion: These results advocate that the Aftimoon as double dose (400 mg/kg body wt.) revealed anti-anxiety effect similar to standard drug.

• 대한한방소아과학회지
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• 제36권1호
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• pp.1-37
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• 2022

Objectives This study aimed to provide a basis for applying Korean medical treatment for childhood anorexia in clinical practice by examining Korean medical etiology, pattern differentiation, and treatment, and focusing on research articles on Chinese medicine. Methods Articles on Chinese medicine related to childhood anorexia published before November 4, 2021, in the China National Knowledge Infrastructure (CNKI), were analyzed. The etiology, pattern differentiation, and Chinese medical treatment were summarized. Results Of a total of 73 studies, 13 were randomized controlled trials (RCT), 32 were case studies, and 28 were review papers. The most common Chinese medical etiology of childhood anorexia was emotional instability, and the western medical etiology was problems with diet and lifestyle. The most frequently reported pattern differentiations were spleen-stomach-qi deficiency (脾胃氣虛), stomach-yin deficiency (胃陰不足), and spleen failing in transportation syndrome (脾失健運). The most frequent prescriptions were modified Yangwijeungaektang (养胃增液湯加減), Samryongbakchulsan (蔘苓白术散加减), and Ekongsan (異功散加減). As frequntly used tuina acupoints, Naepalgwae (内八卦), Joksamli (足三里), and Bigyeong (脾經) were mentioned. Conclusions This study analyzed the etiology, pattern differentiation, and Korean medical treatment of anorexia in children. Based on this study, standardization and well-designed clinical studies on Korean medical treatments for childhood anorexia can be expected in the future.

• Journal of Audiology & Otology
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• 제24권2호
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• pp.85-90
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• 2020

Background and Objectives: The present study aimed to compare thresholds of direct bone-conduction (BC direct) with those of behaviorally measured BC pure-tone audiometry (PTA) and objectively measured BC auditory brainstem response (ABR) to confirm the clinical feasibility of their relationships. Subjects and Methods: Young adults with normal hearing participated in the study to determine the thresholds from three measurements at four testing frequencies. In the BC direct, the vibrator of a bone-anchored hearing aid softband was placed on the right mastoid of each subject. In both PTA and ABR, a B71 bone oscillator was placed on the subject's right mastoid. While the subject's thresholds of BC direct and BC PTA were determined with a clinically routine 5-dB step procedure, BC ABR was conducted to determine the individual's hearing sensitivity by a peak V of the waveform using tone-burst and click stimuli. Results: The BC direct showed a different pattern between low and high frequencies. Precisely, its thresholds were 13.25 and 12.25 dB HL at 0.5 and 1 kHz, respectively, but 19 and 19.75 dB HL at 2 and 4 kHz, respectively. A significant positive correlation existed between BC direct and PTA at 1 kHz, which was also correlated with ABR. Conclusions: Based on the current data, the thresholds of BC direct were similar to BC PTA at low frequencies and BC ABR at high frequencies. The thresholds of BC direct might be predictable at approximately 5 dB higher (or lower) than that in PTA, although a large data set is required for standardization.

• 대한청각학회지
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• 제24권2호
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• pp.85-90
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• 2020

Background and Objectives: The present study aimed to compare thresholds of direct bone-conduction (BC direct) with those of behaviorally measured BC pure-tone audiometry (PTA) and objectively measured BC auditory brainstem response (ABR) to confirm the clinical feasibility of their relationships. Subjects and Methods: Young adults with normal hearing participated in the study to determine the thresholds from three measurements at four testing frequencies. In the BC direct, the vibrator of a bone-anchored hearing aid softband was placed on the right mastoid of each subject. In both PTA and ABR, a B71 bone oscillator was placed on the subject's right mastoid. While the subject's thresholds of BC direct and BC PTA were determined with a clinically routine 5-dB step procedure, BC ABR was conducted to determine the individual's hearing sensitivity by a peak V of the waveform using tone-burst and click stimuli. Results: The BC direct showed a different pattern between low and high frequencies. Precisely, its thresholds were 13.25 and 12.25 dB HL at 0.5 and 1 kHz, respectively, but 19 and 19.75 dB HL at 2 and 4 kHz, respectively. A significant positive correlation existed between BC direct and PTA at 1 kHz, which was also correlated with ABR. Conclusions: Based on the current data, the thresholds of BC direct were similar to BC PTA at low frequencies and BC ABR at high frequencies. The thresholds of BC direct might be predictable at approximately 5 dB higher (or lower) than that in PTA, although a large data set is required for standardization.