• International Journal of Computer Science & Network Security
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• 제22권8호
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• pp.35-44
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• 2022

The Internet is extremely important to accomplish numerous items, from education to businesses and entertainment. Therefore, the quality of its performance must be efficient. Nowadays, there is a lack of information available for users to choose a suitable Internet service. What information is available might be insufficient, inaccurate, or regularly updated. Accordingly, there is a need to develop an electronic system that enables users to evaluate their current Internet service subscription. Several factors are used as evaluation criteria in the system that affect users' decisions. In this paper, a prototype of a design science research project is proposed to address a few objectives. First, it can help Internet service users in Saudi Arabia to make the best decision for themselves regarding Internet services subscriptions. Second, it can assist the Saudi government to seek one of the 2030 vision goals: the digital transformation that depends on having a good Internet connection. The proposed solution is a promising one that would help Internet service users to make the best decision for themselves and choose the best Internet service that fits their needs. A qualitative method has been used to evaluate the efficiency and the utility of the proposed system prototype. The results showed the extent of participants' acceptance of the Internet Service Evaluation System.

• The Journal of Asian Finance, Economics and Business
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• 제8권4호
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• pp.993-1001
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• 2021

This study aims to determine the factors influencing student performance using the teaching and learning process through e-learning based on the unified theory of acceptance and use technology (UTAUT). This study also sets out to propose additional variables to expand the UTAUT model to be more suitable to use in higher education. This research conducted a literature review, expert interviews, and a self-administered survey involving 200 students at tertiary institutions in Riau province, Indonesia. The questionnaire data were analyzed using SmartPLS 2. This study shows that UTAUT constructs, namely, social influence, facility conditions, and effort expectancy have a significant influence on student behavior and performance, while the performance expectancy variable shows no significant effect. The additional variables, including lecturer characteristics, external motivation, and organizational structure, directly affect student performance. However, concerning student behavior, motivation and environment are the only variables with a significant effect. The results of this study suggest the behavior deteminant such as lecturer characteristics, motivation and environment, and organizational structure improve student performance. This study investigates factors affecting the performance of university students through the learning employing e-learning by developing the UTAUT constructs to include the lecturer characteristics, motivation and environment, and organizational structure in improving student performance.

• The Journal of Asian Finance, Economics and Business
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• 제9권7호
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• pp.93-99
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• 2022

Nowadays, learning management systems (LMS) are an effective and efficient tool for providing students with a high-quality education. The current study examines the effect of different factors on the use of the blackboard application on mobile phones. The study selects four important factors after factor analysis, such as facilitating factor, performance factor, satisfaction factor, and difficulties factor. The data was collected through a structured questionnaire from 45 students as a sample in the college of business administration at Prince Sattam Bin Abdulaziz University. The study uses a logistic regression model to examine the empirical relationship between LMS adoption and different factors associated with blackboard adoption. The results show that 71 percent of the respondents are between the age of 18-20 years, and 100 percent of students have experience in using blackboard. The empirical results show that the satisfaction factor is positive and significant at the 10 percent level of significance and the difficulties factor is also positive and significant at the 1 percent level of significance. The results conclude that the students are satisfied with using the blackboard on mobile, nevertheless, the difficulties factor which is positive and significant shows that students are facing some difficulties in using the blackboard on their mobile.

• Asian-Australasian Journal of Animal Sciences
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• 제32권12호
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• pp.1923-1932
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• 2019

Objective: We investigated visual marbling level (VML) influence on pork loin physicochemical traits, consumer palatability responses, VML liking, purchase intent, and their relationships. Methods: For each of five slaughtering dates, at 24-h postmortem, nine paired Duroc castrated male boneless Longissimus dorsi (LD) muscles were categorized into low (LM, score 1 to 2, n = 3), medium (MM, score 3 to 4, n = 3), and high (HM, score 5 to 6, n = 3) VML. Meat physicochemical quality traits and consumer responses (n = 389) on palatability and VML liking, and purchase intent were evaluated. The experiment was in randomized complete block design. Analysis of variance, Duncan's multiple mean comparisons, and correlation coefficients were determined. Results: VML correspond to crude fat (r = 0.91, p<0.01), but both were reversely related to moisture content (r = -0.75 and -0.91, p<0.01, respectively). As VML increased, ash (p<0.05) and protein (p = 0.072) decreased, pH and $b^{\star}$ increased (p<0.05), but drip, cooking (p<0.05) and thawing (p = 0.088) losses decreased. Among treatments, muscle fiber diameter, sarcomere length, total and insoluble collagen contents, $L^{\star}$, and $a^{\star}$ did not differ (p>0.05). Compared to the others, HM had lower collagen solubility percentage (p<0.05), but similar (p>0.05) Warner-Bratzler shear force (WBSF). No differences (p>0.05) were found in juiciness, overall flavor, oiliness, and overall acceptability, but HM was more tender (p<0.05) than the others. Based on VML, consumers preferred MM to HM (p<0.05), while LM was similar to MM and HM (p>0.05). Corresponding to VML preference (r = 0.45, p<0.01), consumers (83%) would (p<0.01) definitely and probably buy MM, over LM (74%), and HM (68%), respectively. Conclusion: Increasing VML in pork LD altered its chemical composition, slightly increased pH, and improved water holding capacity, thereby improving its tenderness acceptability. Marbling might reduce chewing resistance, as lower collagen solubility in HM did not impact tenderness acceptability and WBSF. While HM was rated as most tender, consumers visually preferred and would purchase MM.

• 컴퓨터교육학회논문지
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• 제8권4호
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• pp.37-47
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• 2005

실업계 고등학교에서 특기 적성활동의 일환으로 운영되고 있는 컴퓨터 강좌는 학생들의 정보격차를 해소하는 한편 매우 저렴한 비용으로 관련 자격증의 획득을 지원해 줌으로써 다양한 기여를 하고 있다고 하겠다. 본 연구는 컴퓨터 특기적성 수업에 참여하는 학생들의 만족도 유인요인에 대해 실증적 분석을 목적으로 한다. 이를 위해, 컴퓨터 특기적성 수업의 만족도 또는 참여의도에 영향을 미친다고 생각하는 다양한 선행요인들을 체계적으로 분류 정리하고, 통계적 분석과정을 통해 유의한 요인들을 도출해 보고자 하였다. 전체적으로 연구모형의 타당성을 제시할 수 있었으며, 학생들의 참여의지에 영향을 미치는 요인으로 교육적 효과, 개인적 효과 그리고 즐거움 등을 도출하였다. 또한 교육환경은 교육적 효과와 즐거움에 영향을 미쳤으며, 교육컨텐츠의 질도 학습의 용이성과 즐거움에 큰 영향을 미치는 것으로 판명되었다.

• 분석과학
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• 제34권5호
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• pp.193-201
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• 2021

We have demonstrated a sensitive analytical method of measuring oleracone D in mouse plasma using a liquid chromatography-tandem mass spectrometry (LC-MS/MS). Oleracone D and oleracone F (internal standard) in mouse plasma samples were processed using a liquid-liquid extraction method with methyl tertbutyl ether, resulting in high and reproducible extraction recovery (80.19-82.49 %). No interfering peaks around the peak elution time of oleracone D and oleracone F were observed. The standard calibration curves for oleracone D ranged from 0.5 to 100 ng/mL and were linear with r² of 0.992. The inter- and intra-day accuracy and precision and the stability fell within the acceptance criteria. The pharmacokinetics of oleracone D following intravenous and oral administration of oleracone D at doses of 5 mg/kg and 30 mg/kg, respectively, were investigated. When oleracone D was intravenously injected, it had first-order elimination kinetics with high clearance and volume of distribution values. The absolute oral bioavailability of this compound was calculated as 0.95 %, with multi-exponential kinetics. The low aqueous solubility and a high oral dose of oleracone D may explain the different elimination kinetics of oleracone D between intravenous and oral administration. Collectively, this newly developed sensitive LC-MS/MS method of oleracone D could be successfully utilized for investigating the pharmacokinetic properties of this compound and could be used in future studies for the lead optimization and biopharmaceutic investigation of oleracone D.

• 한국축산식품학회지
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• 제39권2호
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• pp.309-323
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• 2019

Fish oil consists of omega-3 fatty acids which play an important role in human health. Its susceptibility to oxidation causes considerable degradation during the processing and storage of food products. Accordingly, encapsulation of this ingredient through freeze drying was studied with the aim of protecting it against environmental conditions. Gum arabic (GA) was used as the wall material for fish oil nanoencapsulation where tween 80 was applied as the emulsifier. A water-in-oil (W/O) emulsion was prepared by sonication, containing 6% fish oil dispersed in aqueous solutions including 20% and 25% total wall material. The emulsion was sonicated at 24 kHz for 120 s. The emulsion was then freeze-dried and the nanocapsules were incorporated into probiotic fermented milk, with the effects of nanocapsules examined on the milk. The results showed that the nanoparticles encapsulated with 25% gum arabic and 4% emulsifier had the highest encapsulation efficiency (EE) (87.17%) and the lowest surface oil (31.66 mg/100 kg). Using nanoencapsulated fish oil in fermented milk significantly (p<0.05) increased the viability of Lactobacillus plantarum as well as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) contents. The fermented milk sample containing fish oil nanoencapsulated with 25% wall material and 4% emulsifier yielded the greatest probiotic bacterial count (8.41 Log CFU/mL) and the lowest peroxide value (0.57 mEq/kg). Moreover, this sample had the highest EPA and DHA contents. Utilizing this nanoencapsulated fish oil did not adversely affect fermented milk overall acceptance. Therefore, it can be used for fortification of low fat probiotic fermented milk.

• 컴퓨터교육학회논문지
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• 제8권5호
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• pp.31-41
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• 2005

본 연구에서는 개인정보의 유출, 사이버 범죄와 일탈행위에 대한 이론적 배경을 살펴보고, 정보보호 및 사이버 범죄를 예방하는데 기여할 수 있는 다양한 예방의지에 영향을 미치는 요인들을 살펴보는데 주요 목적이 있다. 이를 위해 중 고등학생들을 대상으로 설문조사를 실시하고, 이들의 개인정보 유출경험, 정보보호 관련 ICT 활용에 대한 용이성 평가, 정보보호 및 사이버 일탈행위의 예방에 대한 유용성 인식, 사이버 범죄와 일탈행위에 대한 두려움 정도 등의 요인 간 인과관계를 실증적으로 분석해 보았다. 통계적 분석결과, 사이버 일탈행위에 대한 두려움과 예방대책에 대한 유용성이 최종 종속변수인 정보보호 및 사이버 범죄에 대한 예방노력 의지에 영향을 미치는 것으로 분석되었다. 또한 정보보호를 위한 예방적 노력의 유용성에 유의한 영향을 미치는 요인으로는 ICT 활용의 용이성, 두려움, 규범 등인 것으로 판명되었고 정보유출경험은 통계적으로 유의한 영향을 미치지 못하는 것으로 나타났다. 그 외 인터넷 사용시간은 두려움에 부의 영향을 미치는 것으로 판명되었다. 이 과정에서 정보보호 및 사이버일탈행위의 예방적 노력의 일환으로 운영될 필요가 있는 교육컨텐츠 개발을 위한 시사점 등도 논의되었다.

• 중소기업연구
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• 제42권4호
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• pp.251-283
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• 2020

본 연구는 우리나라의 중소기업들에 대하여 스마트 팩토리 관련 기술의 수용 및 사용의 수준을 제고하기 위한 관련 정책의 수립에 도움을 제공하기 위한 것이다. 이를 위하여 통합기술수용모델(UTAUT)을 확장하여 기술 수용의도에 영향을 미칠 수 있는 추가적인 영향요인들을 선정하였으며, 이를 실증하는 것이다. 연구목적의 달성을 위하여 리커트 7점 척도로 구성된 설문지를 작성하였으며, 제조 관련 기업을 대상으로 설문조사를 시행하였다. 통계처리에 활용된 설문지는 총 136부이다. 가설검정 결과 성과기대와 사회적 영향은 수(사)용의도에 정(+)의 유의한 영향을 미치지만, 노력기대와 촉진조건은 유의한 영향을 미치지 않는 것으로 검정되었다. 확장요인으로서 네트워크 효과, 조직특성은 정(+)의 유의한 영향을 미치며, 혁신저항은 부(-)의 유의한 영향을 미치지만 인지된 위험은 유의한 영향을 미치지 않는 것으로 검정되었다. 기업의 규모가 클수록 인지된 위험과 혁신저항의 수준은 낮으며, 이를 제외한 수(사)용의도 영향요인과, 수(사)용의도, 수(사)용행동의 수준은 높은 것으로 검정되었다. 본 연구를 통하여 스마트 팩토리 관련 기술의 수(사)용에 긍정적, 부정적 영향을 미칠 수 있는 요인들을 규명함으로서 제고되어야 하는 요인과 감소시켜야 하는 요인을 제시하였으며, 비교적 기업의 규모가 큰 기업들부터 우선적으로 스마트 팩토리 관련 기술이 수용될 수 있도록 하여야 한다는 연구결과를 제시한다.

• 대한한의학원전학회지
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• 제32권3호
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• pp.59-71
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• 2019

Objectives : This paper looks at the history of East Asian acupuncture and moxibustion in the context of the general orientations of craft and art. It is understood that acupuncture and moxibustion was the ultimate integration of reason and craft in which text and experience mutually influenced each other throughout its development. In Joseon, the pursuit of integration between the body and the order of the Heaven and Earth was particularly prominent. Methods : As in the words of Zhunagzi(莊子), the state in which something that deeply touches the mind manifests in the hands has been understood as the ultimate state in modern and ancient art. Starting here, I examined the possibility that Korean acupuncture and art has evolved from such foundations step by step. Major acupuncture and moxibustion texts were examined historically, starting with "Shenyingjing(神應經)", leading to "Junggan-Shenyingjing (重刊神應經)", "Chimgu-Gyeongheombang(鍼灸經驗方)", "Chijongjinam(治腫指南)", "Chijongjinam-Joseonchambon治腫指南朝鮮?本", "Chimgutaegilpyeonjip(鍼灸擇日編集)", "Chimgu-Myeonggam(鍼灸明鑑)". Introductions and main contents of the texts were analyzed and presented appropriately. Results : East Asian acupuncture and moxibustion has developed based on the study of pathways that correspond to Shen, of the accordance and harmony between body and the order of Heaven and Earth together with theoretical refinement, technical development, and acceptance of new discoveries. In the perspective of craft, this was motivated by artistic passions such as '得於心 應於手' and '醫者意也'. In the case of refined acupuncture methods, due to their difficulty in education and transmission there has been some fluctuation. Conclusions : Korea, China, and Japan share a largely similar philosophical and cultural basis. Reason and craft, text and experience mutually influenced each other while the core of refined acupuncture was widely shared. However, a certain bifurcation point could be detected.