• 디지털융복합연구
• /
• 제17권10호
• /
• pp.433-438
• /
• 2019

본 논문은 중국의 Mobil Device Platform 기반 영상콘텐츠 Application에 대해 분석하였으며 향후 발전 방안에 대해 연구하였다. 조사에 따르면 2019년 현재 중국의 인터넷 서비스 가입자와 앱 사용자는 전체 인구의 78%를 기록하였다. 독자적으로 Mobil Device Platform을 개발하여 영상콘텐츠 Application 서비스를 제공하고 있으며, 2013년부터 현재까지 동영상 앱 사용자 수가 6억 4천만 명으로 집계되었다. 이중 65%의 사용자는 두 개 이상의 영상콘텐츠 앱을 설치해 사용하는 것으로 나타났다. 중국의 TikTok, Kuai Shou, MeiPai 등 영상콘텐츠 앱은 조작이 간편한 User Interface와 사용자가 손쉽게 영상콘텐츠를 직접 제작 가능하도록 촬영, 편집, 특수효과 등의 기능을 제공함으로서 10대, 20대, 30대 뿐만 아니라 40대 이상의 사용자까지도 끌어들이고 있다. 영상콘텐츠 제작기능 제공은 미국의 유명 동영상 플랫폼 You Tube와는 다른 차별화 된 특징이라 할 수 있다. 동영상 플랫폼 시장에서 핵심 경쟁력은 콘텐츠 창작에 달려있다. VR, AR 등의 영상공학을 융합한 영상콘텐츠는 동영상 플랫폼 시장을 더욱 활성화 시킬 전망이다.

• 한국HCI학회:학술대회논문집
• /
• 한국HCI학회 2008년도 학술대회 1부
• /
• pp.612-617
• /
• 2008

DMB를 위한 데이터 방송 애플리케이션을 개발할 때 서비스 될 콘텐츠를 직접 작성해야 하므로 뉴스와 같이 실시간으로 업데이트가 이루어지는 콘텐츠의 경우 지속적인 반영이 어렵다. 이에 본 논문에서는 실시간으로 바뀌는 웹 뉴스 콘텐츠를 가져와 DMB 데이터 방송용 뉴스 어플리케이션을 생성할 수 있는 시스템을 설계하였다. 이 시스템을 통해 웹 콘텐츠의 배급을 위한 XML 기반의 RSS를 이용하여 빠르게 업데이트 되는 뉴스 콘텐츠를 실시간으로 수집하여 데이터 방송용 어플리케이션에 적용 가능한 형대로 변환한 후 DMB 기기에서 실행할 수 있는 MPEG-4 BIFS 프로그램을 저작할 수 있다.

• 한국멀티미디어학회:학술대회논문집
• /
• 한국멀티미디어학회 2012년도 춘계학술발표대회논문집
• /
• pp.123-126
• /
• 2012

In general, there are 3 subjects of discussion in education field; namely past, present and future. Related with those facts, there is several information or knowledge that relatively hard to be presented in the real world. In this matter, digital content shows its contribution especially in the education field. Digital content can virtually represent the information or knowledge that seems to be difficult to be visualized in the real world before. In this project, researcher develops a mobile device's application that consist the skeleton's 3D virtual content. This application is expected to solve the above explained problem that usually appears during learning human skeleton in senior high-school's biology class. Besides, the application of digital content will make the learning process become easier because the student will have a visual learning tool. Last, the mobile device that is used in this prototype has offer an important beneficial namely mobility beneficial, so that the user can access the content anytime and anywhere.

• 한국초지조사료학회지
• /
• 제14권3호
• /
• pp.223-229
• /
• 1994

To find out the effects of phosphatic fertilizer application levels on the botanical composition, mineral contents and mineral nutrient deprivation of grasses and the chemical properties of soil, this expriment was arranged as a randomized complete block design with six treatments(0, 50, 100, 150, 200 and 250kg $P_2O_5$/ha) and conducted at hilly land in Gwangju, Gyeonggi Province from September, 1989 to October, 1992. The results obtained are summarized as follows: The botanical composition of grasses without posphatic fertilizer application was poor but with 150kg $P_2O_5$/ha application, remarkably increased in legume of grasses and decreaed in weed. As the phophatic fertilizer levels increase, P, Ca and Mg content of grasses were increased but N and K content tended not to be regular, and Ca/p and K/Ca+ Mg equivalent ratio were lowered. Up to 150kg $P_2O_5$/ha application level, the mineral nutrient content deprived by dry matter yield was increased but with that over application, tend not to be increased. Most of applied mineral elements were accumulated at a subsurface of grassland and as the phosphatic fertilizer application levels increase, the available $P_2O_5$ and exchangeable Mg contents of the soil tended to be remarkably increased and exchangeable K content tended to be decreased, but pH, OM and exchangeable Ca content tended not to be regular.

• International Journal of Computer Science & Network Security
• /
• 제23권6호
• /
• pp.1-12
• /
• 2023

With the rapid increase of user generated data on digital platforms, the task of categorizing and classifying theses huge data has become difficult. Topic modeling is an unsupervised machine learning technique that can be used to get a summary from a large collection of documents. Topic modeling has been widely used in English content, yet the application of topic modeling in Arabic language is limited. Therefore, the aim of this paper is to provide a systematic review of the application of topic modeling algorithms in Arabic content. Using a well-known and trusted databases including ScienceDirect, IEEE Xplore, Springer Link, and Google Scholar. Considering the publication date from 2012 to 2022, we got 60 papers. After refining the papers based on predefined criteria, we resulted in 32 papers. Our result show that unfortunately the application of topic modeling techniques in Arabic content is limited.

• 한국초지조사료학회지
• /
• 제12권3호
• /
• pp.138-144
• /
• 1992

This study was carried out to determine the effects of lime(0, 300 kg/lOa) and phosphate application( 0, 20, 40, 80 kg/lOa) on mineral contents in herbage when 5 pasture species(orchardgrass, tall fescue, perennial ryegrass, redtop and ladino clover) were grown in pot of black(B) and very dark brown (VDB) volcanic ash soil of Cheju island, respectively. P content of orchardgrass and perennial ryegrass were higher in VDB than in B (P<0.01), but other grasses were not different between two soil types. Also, Ca and Mg contents of ladino clover were higher in VDB than in B, but other grasses were not different between two soil types. P and K contents were not affected by lime but Ca and Mg contents were increased by lime application in most of the pasture species. P, Ca, Mg and Na contents of all pasture spesies were increased by phosphate application(P< 0.Ol)except for Ca content of tall fescue. K and Fe content were decreased, with increasing phosphate application but Zn content was not changed by phosphate application.

• 한국약용작물학회지
• /
• 제12권6호
• /
• pp.454-458
• /
• 2004

잇꽃 종실의 품질 향상에 효과적인 황 시용방법을 구명하고자 황분말 20 kg/10a와 유안의 시용방법 및 시용량을 달리하여 종실의 영양적 품질에 미치는 영향을 비교 조사한 결과는 다음과 같다. 1. 종실의 질소와 황 함량은 황 무시용구에 비해 시용구에서 높은 경향이었다. 황 처리간에는 질소 함량은 차이가 없었으나, 황 함량은 유안 토양시비량이 증가할수록 높아졌다. 유안 시비방법 간에는 토양시비 33 kg/10a와 엽면시비 간에 큰 차이는 없었다. 질소/황 비율은 황 시용으로 질소/황 비율이 저하되었고, 유안 토양시비 간에는 시용량이 증가할수록 감소하여 유안 49.5 kg/10a 처리시 가장 낮았다. 2. 종실의 조지방과 조단백질 함량은 황 시용시 무시용에 비하여 높았으며, 황 유형 간에는 조지방이 유안 엽면시비에서 가장 높았고, 조단백질이 유안 16.5 kg/10a에서 가장 낮았던 것을 제외하고 차이가 없었다. 3. 총페놀성 화합물 함량과 항산화 활성은 황 시용으로 증가하였다. 황 처리 간에는 총페놀성 화합물 함량은 차이가 없었으나, 항산화 활성은 황분말과 유안 33.0 kg/10a 처리에서 다소 높았다.

• Journal of Biosystems Engineering
• /
• 제28권4호
• /
• pp.361-368
• /
• 2003

This study was intended to investigate the temporal and spatial variabilities of dry matter, nitrogen content, chlorophyll of paddy rice and yield caused by different rates of nitrogen application. An experimental field was divided into 45 plots of 3.48 ${\times}$ 12 m in size and application rate of nitrogen varied from 0 to 235% with an increment of 25% based on the standard rate of N-P$_2$O$_{5}$-K$_2$O=12-8-8 kg/10a. The measurements were made 8 times every 9-10 days after the transplanting. About 60 days after the transplanting, there exhibited little variabilities in the dry matter caused by different rates of nitrogen application. After that. however, there showed large variabilities and the dry matter increased with the application rate. The nitrogen content of paddy also increased with the application rate but it was inconsistent. After the tillering period, the nitrogen content remained constant. In the early stage of the tillering period the nitrogen content decreased in spite of increase in the dry matter. However. after a certain period of time it increased with the dry matter. There were little variabilities of chlorophyll after the transplanting. However, the SPAD increased with application rate of nitrogen as the paddy grew. After the tillering period SPAD was not affected by the different rates. More yield was obtained at the plots where larger nitrogen content was measured.d.

• 한국잠사곤충학회지
• /
• 제37권2호
• /
• pp.109-113
• /
• 1995

와그너폿트(1/20,000a)에 묘목을 심고 유리온실내에서 황(98% S함유)의 시비량을 0, 30, 60, 120kg/10a의 4수준으로 하고 황시용이 뽕나무 생육, 토양 및 뽕잎의 화학성에 미치는 영향을 조사한 결과는 다음과 같다. 1. 뽕나무의 가지길이는 황 30kg/10a시용구에서 무시비구 대비 3.2cm 더 자랐으나, 60kg/10a 이상 다량시용한 구에서는 3.7cm 자람이 떨어졌다. 2. 토양의 pH는 황시비에 따라 떨어졌으며, 황 120kg/10a시용구에서 가장 많이 떨어져 무시비구 대비 pH3.0이 떨어졌으며, 시용된 황의 용해는 시비후 4~11일 사이에 일어나는 것으로 판단되었다. 3. 황시비는 뽕잎중의 수분율, 전질소, No3-N, K, S의 함량을 떨어뜨렸으며 F, Ca은 증가시켰다. 황시비량이 60kg/10a 이상이면 P, S, K, 함량은 증가하였으며, Ca는 감소하는 경향을 보였다.

• Asian-Australasian Journal of Animal Sciences
• /
• 제24권3호
• /
• pp.439-448
• /
• 2011

Oxalic acid is synthesized by a wide range of plants. A few of them are forage plants that can cause oxalate poisoning in ruminants under certain conditions. In this paper, the role of some agronomic, climatic and genetic factors in minimizing oxalate accumulation in forage plants has been discussed. Research indicates that the content of oxalate in forage can be controlled by fertilizer application. For example, nitrate application resulted in higher contents of soluble and insoluble oxalates than ammonium application. With an increased rate of potassium application, soluble oxalate content showed an increasing trend and insoluble oxalate content showed a decreasing trend. With an increased rate of calcium application, soluble oxalate content showed a decreasing trend and insoluble oxalate content showed a reverse trend. Other agronomic factors such as growing season, harvesting practices, plant maturity, plant species, plant variety and plant parts can also have a large effect on oxalate accumulation. However, the potential benefits of the above approaches for improving forage quality have not been fully exploited. In addition, there is still insufficient information to fully utilize means (e.g. plant nutrients, season and soil moisture) to minimize oxalate accumulation in forage plants. Therefore, more research is required for a better understanding of the interactions between oxalate and the above-mentioned factors in forage plants.