• 한국안광학회지
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• 제10권2호
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• pp.133-138
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• 2005

비구면렌즈는 구면렌즈계의 단점을 보완하여 결상 성능을 향상시키며, 렌즈의 사용매수를 경감시키고 이로 인하여 광학계의 무게와 부피를 줄이는 소형경량화를 목적으로 하여 사용되고 있다. 비구면 광학소자의 생산기술과 측정기술은 현대의 첨단기술로 부각되고 있다. 비구면으로 구성된 원광학계는 넓은 시야와 고성능, 양질의 상을 얻을 수 있고, 또한 소형, 경량화 시킬 수 있는 등 많은 장점을 가지고 있다. 이러한 비구면 소자의 급증하는 필요성에 부응하여 비구면 가공 기술과 측정 기술에 대하여 연구하고자 한다. 비구면 생산 기술과 측정 및 평가 기술은 끊임없이 발전하고 있음을 밝혀둔다.

• 한국문헌정보학회지
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• 제42권4호
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• pp.5-31
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• 2008

본 연구에서는 학교도서관 활용수업을 설계하고 실행한 후 학습태도와 생애능력을 측정하여 두 변인 간에 어떤 관계가 있고 어떤 영향을 미치는지 검증하였다. 연구결과 학교도서관 활용수업에 대한 학습태도와 생애능력은 밀접한 상관관계를 가지고 있으며, 학습태도는 생애능력(의사소통능력, 문제해결능력, 자기주도적 학습능력)의 신장에 영향을 미치는 것으로 나타났다. 또한 본 연구에서는 학교도서관 활용수업 활성화와 생애능력의 신장을 위한 방안으로서 협동수업모형, 정보처리모형, 구성주의 학습 원리를 적용해야 한다는 점을 제안하였다.

• 한국지역사회생활과학회지
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• 제14권3호
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• pp.99-109
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• 2003

This study was conducted to collect basic marketing and management data from businesses run by farmers producing traditional Kanjang and Doenjang, fermented soybean products. The actual conditions of the fermentation processing sites at farmhouses participating in the production of soybean fermentation products were investigated. The subjects of this survey were 130 small size farmhouse Kanjang and Doenjang processing sites nationwide. The frequency, percentage, t-value, chi-square, and ANOVA were used for statistical analysis. The farmhouse business surveyed were generally operated by rural women for non-farming business income. The percentage of co-worked sites was 71.2 while the percentage of sites operating with permits was 39.2. Generally, the the facilities, size, number of working people, and output were very small. The areas in which the products were sold, site-located regions and region metropolises, were equally weighted. Sales volumes in region metropolises for sites with permits were a little higher than sites without permits. Without regard to operation type, the percentage of sales was highest in cases of direct sale by customer order. Co-worked sites have been found to have more experience in publicity than individually operated sites. As for methods of publicity, co-worked sites use mass media such as newspapers and broadcasting. Individually operated sites usually use social organizations and acquaintances. It was found that the average sales of each site totaled 25 million Won. The average income of each site was 12 million Won, and average income per participant was 3 million Won. Total sales income for sites with permits was significantly higher than sites without permits. But personal income was much higher at individually operated sites without regard to whether the site had a permit or not. This kind of business was found to contribute to an individual's time management skills as well as instill a sense of pride.

• 정보교육학회논문지
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• 제26권5호
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• pp.439-448
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• 2022

본 연구에서는 공공데이터포털에서 제공하는 교육관련 데이터를 검색하고 토픽모델링 기법을 활용한 분류를 통해 어떠한 데이터의 종류가 구축되어 있으며 활용이 가능한지를 살펴보고자 하였다. 공공데이터포털의 데이터에 대하여 분류체계를 기준으로 교육분야의 파일데이터는 3,072건이 수집되었으며, 검색어를 활용하여 '교육'을 검색하여 나타난 파일데이터 2,361건으로 나타났다. 각각의 데이터셋에 대하여 불용어처리를 실시하고 데이터 전처리를 수행하여 LDA기반 토픽모델링을 활용하여 텍스트마이닝 분석을 실시하였다. 사전에 교육으로 분류된 데이터셋에서는 현재 재학중인 학교급별 학생을 대상으로 지원하는 프로그램과 정보에 대한 내용이 제공되고 있었다. 한편, 교육으로 검색하여 수집된 데이터셋에서는 장애인, 학부모, 노인, 아동 등 평생교육의 관점으로 제공되는 교육 프로그램 및 지원현황이라는 특징이 나타났다. 데이터과학기반의 의사결정 및 문제해결력을 기르기 위해 공공데이터포털이 제공하는 데이터에서 교육과정 및 내용이 충분히 제공되는 것도 좋은 기회가 될 것이다.

• International Journal of Computer Science & Network Security
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• 제21권2호
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• pp.212-220
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• 2021

The objectives of this research were to identify the digital competencies required for information science specialists at Saudi universities and to examine whether there existed conspicuous differences in the standpoint of these specialists due to years of work experience with regard to the importance of these competencies. A descriptive analytical method was used to accomplish these objectives while extracting the required digital competency list and ascertaining its importance. The research sample comprised 24 experts in the field of information science from several universities in the Kingdom of Saudi Arabia. The participants in the sample were asked to complete a questionnaire prepared to acquire the pertinent data in the period between January 5, 2021 and January 20, 2021. The results reveal that the digital competencies required for information science specialists at Saudi universities encompass general features such as the ability to use computer, Internet, Web2, Web3, and smartphone applications, digital learning resource development, data processing (big data) and its sharing via the Internet, system analysis, dealing with multiple electronic indexing applications and learning management systems and its features, using electronic bibliographic control tools, artificial intelligence tools, cybersecurity system maintenance, ability to comprehend and use different programming languages, simulation, and augmented reality applications, and knowledge and skills for 3D printing. Furthermore, no statistically significant differences were observed between the mean ranks of scores of specialists with less than 10 years of practical experience and those with practical experience of 10 years or more with regard to conferring importance to digital competencies.

• 대한지구과학교육학회지
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• 제5권1호
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• pp.124-133
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• 2012

Modern society requires people with practical knowledge that is able to recognize actual problems in the complex reality and solve the problems. Due to that reason, the 7th National Curriculum aims to basically cultivate ability adaptable to information-oriented global age by maximizing students' individuality and creativity. However, as existing education is hard to improve creativity, logical thinking, information processing skills, and problem-solving ability in the information-oriented age, self-directed learning is getting highlighted. Therefore, this study aimed to look into how learner-oriented IPER for self-directed learning and problem-based learning(PBL) in middle school science affected academic achievement of science and self-directed learning characteristics. As the results of the study are as follows. First, as the result of pre-and post-test to compare and analyze the effects of IPER instruction model and PBL instruction model on learners' academic achievement increase, it showed that the class with IPER instruction model was more effective. Second, as the result of pre-and post-test to compare and analyze the effects of IPER instruction model and PBL instruction model on self-directed learning characters, IPER was more effective than PBL overall, and among sub-areas, 'openness', 'self-concept', 'initiative', 'future-oriented self-understanding', and 'self-evaluation' were more effective in IPER while 'creativity' was more effective in PBL. However, among sub-areas 'responsibility' and 'learning enthusiasm' didn't show statistically significant difference. Third, the results of the post-survey to compare and analyze learners' perception regarding the application of IPER instruction model and PBL instruction model, the two models were positively affective. In addition, as the result of comparing the two models, IPER was more positive than PBL.

• 영어어문교육
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• 제10권3호
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• pp.89-112
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• 2004

This article examines the ways in which language can be exploited in the manipulation of the reader's interpretation of a text to make him/her take certain lines of thought according to the writer's persuasive intents. Such functions of language provide valid foundations to support the teaching of critical reading skills and to explore an adequate approach to discourse analysis. A pilot study was conducted to find out the extent to which the reader can be coaxed into thinking in some fashions guided by specific linguistic devices employed for ideological texts. Forty-seven subjects divided into two groups (humanities majors and natural science majors at undergraduate level) joined the two-fold questionnaire surveys intended to look at their critical reading abilities. The empirical results indicate that college students whose majors are humanities were more inclined to take a holistic approach in processing commercial advertisement texts and their abilities for critical interpretation appeared to be lower than those of the subjects whose majors are natural sciences, who showed a relatively high tendency to take an analytical approach in decoding the textual facts. As a consequence, pedagogic implications for increasing critical reading abilities have resulted in a set of analytical procedures concerning ideological texts which is linked with instructional guidelines to emphasize the importance of the reader's logical and analytical reasoning power, entirely accepted as a general prerequisite for cracking the covert language gambits.

• 정보처리학회논문지B
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• 제12B권2호
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• pp.143-150
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• 2005

가상 필드는 초등학생들이 수학이나 과학에서 많이 필요로 하는 관찰력과 과학적 탐구 능력을 키워주기 위해 만들어진 시뮬레이션 가상현실 환경이다. 지난 4년간 가상 필드는 한 초등학교의 여러 학년 학생들을 상대로 사용되었는데, 가상 필드에서 탐색을 하던 학생들이 방향감을 잃어버리거나 또 자료 수집에 어려움을 보이는 등 여러 가지 문제점이 발견되었다. 이렇게 발견된 문제들을 해결하고 학생들이 좀 더 원활하게 자료 수집을 쉽게 할 수 있도록 도와주기 위해 처음에는 단순히 종이를 이용하는 형태에서 점진적으로 다양한 멀티미디어 환경을 이용하는 프로그램들을 개발하여 학생들에게 제공하였다. 이 논문에서는 초등학생들이 가상현실을 교육에 사용하면서 발생했던 문제점들을 기술하고 그것을 해결하기 위해 제공된 프로그램들을 설명한다. 또한 이런 프로그램들이 어떻게 사용자들의 행동에 영향을 주었는가에 대해서 설명한다.

• Animal Bioscience
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• 제37권4_spc호
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• pp.730-741
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• 2024

Pig production is one of the viable enterprises of the livestock sub-sector of agriculture. It contributes significantly to the economy and animal protein supply to enhance food security in Africa and globally. This article explored the present status of pig production in Africa, the challenges, prospects and potentials. The pig population of Africa represents 4.6% of the global pig population. They are widely distributed across Africa except in Northern Africa where pig production is not popular due to religio-cultural reasons. They are mostly reared in rural parts of Africa by smallholder farmers, informing why majority of the pig population in most parts of Africa are indigenous breeds and their crosses. Pig plays important roles in the sustenance of livelihood in the rural communities and have cultural and social significance. The pig production system in Africa is predominantly traditional, but rapidly growing and transforming into the modern system. The annual pork production in Africa has grown from less than a million tonnes in year 2000 to over 2 million tonnes in 2021. Incidence of disease outbreak, especially African swine fever is one of the main constraints affecting pig production in Africa. Others are lack of skills and technical know-how, high ambient temperature, limited access to high-quality breeds, high cost of feed ingredients and veterinary inputs, unfriendly government policies, religious and cultural bias, inadequate processing facilities as well as under-developed value-chain. The projected human population of 2.5 billion in Africa by 2050, increasing urbanization and decreasing farming population are pointers to the need for increased food production. The production systems of pigs in Africa requires developmental research, improvements in housing, feed production and manufacturing, animal health, processing, capacity building and pig friendly policies for improved productivity and facilitation of export.

• 정보교육학회논문지
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• 제17권2호
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• pp.147-156
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• 2013

컴퓨터과학은 정보처리의 연구, 자동화될 수 있는 것에 대한 연구, 컴퓨터계산의 연구, 자연적 인공적 모두의 정보처리의 연구로 발전하고 있다. 컴퓨터과학의 발전에 따라 정보교육의 모습도 변해 왔고, 최근에는 계산적사고 교육을 강조하고 있다. 본 논문은 정보교육의 발전과정을 살펴보고, 계산적사고의 교육방법으로 언플러그드 컴퓨팅을 적용하는 것에 대해 탐색해 본다. 연구자는 또한 언플러그드 컴퓨팅 방법을 적용하는데 있어서의 고려사항을 교사준비, 교육내용, 교수자원의 측면으로 나눠 살펴본다. 교사준비 측면에서는 교사의 인식전환, 컴퓨터과학 내용의 이해, 학생의 사고 촉진방법에 대한 이해가 필요하고, 내용 측면에서는 추상화 수준 설정, 내용 난이도 조절, 내용 심화 및 통합이 필요하다. 그리고 교수자원의 측면에서는 시간관리 및 자료준비 방법에 대한 고려도 필요하다.