• Journal of the Korean Society of Food Science and Nutrition
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• v.37 no.11
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• pp.1452-1456
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• 2008

For the effective use of salmon processing by-products, the food components of salmon frame muscle were investigated and compared with those of fillet muscle. The proximate composition of salmon frame muscle was 73.2 g/100 g muscle for the moisture, 76.9 g/100 g dry material for the protein, 15.7 g/100 g dry material for the lipid and 4.1 g/100 g dry material for the ash. pH and volatile basic nitrogen (VBN) content of salmon frame muscle were 6.63 and 16 mg/100 g, respectively. The proximate composition, pH and VBN of salmon frame muscles were similar to those of salmon fillet muscle. The Hunter values of salmon frame muscle were 55.34 for L value, 16.60 for a value, 19.99 for b value and 48.83 for ${\Delta}E$ value, which were different compared to the salmon fillet muscle. The trichloroacetic acid (TCA) soluble-N content of salmon frame muscle was 542 mg/100 g, which was lower than that of salmon fillet muscle. No difference was found in fatty acid composition, total amino acid, calcium, phosphorus contents and sensory evaluation between salmon frame muscle and salmon fillet muscle. These results suggested that muscle from salmon frame could be used as resources for seafood processing.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.59 no.10
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• pp.1923-1928
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• 2010

The IEC 61850 protocol proposed for the interoperability between IEDs(intelligent electronic devices) adopts the prioritized switched ethernet as its communication channel because substation bus is utilized to exchange both real-time and non real-time messages. The prioritized switched ethernet uses IEEE 802.1Q/p QoS(Quality of Service) in addition to IEEE 802.3 ethernet to enhance the real-time characteristics. However, IEEE 802.1Q/p QoS has priority-blocking problem that occurs when higher-priority frame transmission request during lower-priority frame transmission. To resolve this problem, this paper proposes P(Preemptive)-Ethernet. P-Ethernet uses the modified IEEE 802.1Q/p frame format and new priority preemption mechanism. This paper also implements P-Ethernet controller using FPGA (Virtex-4) and MicroBlaze processor. From the implementation results, P-Ethernet controller shows a improved latency and jitter of transmission period compare to the normal ethernet controller.

• Proceedings of the IEEK Conference
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• 2000.09a
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• pp.215-218
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• 2000

디지털 비디오 데이터를 효율적으로 브라우징 하는데 필요한 비디오 분할에 관한 연구가 활발하게 진행되고 있다. 본 연구에서는 비디오 데이터를 Shot단위로 분할하고, Shot내부에서 카메라 동작과 객체 움직임 분석을 이용한 sub-shot으로 분할하고자 한다. 연구 방법으로는 I-frame의 DC 영상을 이용하여 픽쳐그룹을 Shot(장면이 바뀐 경우), Move(카메라 동작,객체움직임), Static(영상의 변화가 거의 없는 경우)로 세분화하고 해당 픽쳐 그룹의 P, B-frame을 검사하여 정확한 컷 발생 위치, 디졸브, 카메라동작, 객체 움직임을 검출하게 된다. 픽쳐그룹 분류에서 정확성을 높이기 위해 계층적 신경망과 다중 특징을 이용한다. 정확한 컷 발생위치 검출하기 위해서 P, B프레임의 메크로블럭 타입을 이용한 통계적 방법을 이용하고, 디졸브, 카메라 동작, 객체 움직임을 검출하기 위해서 P, B-frame의 메크로블럭 타입과 움직임 벡터를 이용한 신경망으로 검출한다. 본 연구에서는 계층적 탐색을 이용하여 시간을 단축할 수 있고, 계층적 신경망과 다중 특징을 이용하여 픽쳐 그룹을 세분화 할 수 있고, 메크로 블록 타입과 통계적 방법을 이용하여 정확한 컷 검출을 할수 있고, 신경망을 이용하여 디졸브, 카메라 동작, 객체움직임을 검출 할 수 있음을 확인한다.

• Journal of Fisheries and Marine Sciences Education
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• v.27 no.4
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• pp.973-980
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• 2015

This study was done to investigate the quality characteristics of salmon frame with citric acid pretreatment. Sliced salmon frame samples were cured in soy sauce, sugar, pepper, and sodium nitrate for 12 h and then dried at 3 h and then dried at $60^{\circ}C$ for 3 h. As the autoclaving at $130^{\circ}C$ for 15 min, the pH, moisture content, crude ash, crude fat, crude protein, acid value (AV), peroxide value (POV), volatile basic nitrogen (VBN), trimethylamine (TMA), total plate count and E. coli were measured at $4^{\circ}C$, $25^{\circ}C$ and $35^{\circ}C$ of storage days. The AV, POV, VBN, TMA and total plate count for all samples significantly increased as during storage days (p<0.05). All samples of storage, for autoclaving on salmon frame, there were no growth on E.coli. In the making of autoclaving on salmon frame, technologies for more safety from microbial growth should accompany pretreatment with citric acid.

• The KIPS Transactions:PartB
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• v.9B no.6
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• pp.745-752
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• 2002

The purpose of the paper is to enable a format transcoding between a heterogeneous compression format in a real time, and to enhance the compression ratio using characteristics of the compressed frame. In this paper, for the heterogeneous format transcoding, we tried to transcode from MPEG2 having a lower compression ratio to H.263 having a higher compression ratio. After analyzing MPEG 2 bit stream and H.263 bit stream of the same original video, we found that the number of intra coded macro blocks in MPEG 2 data is much higher than the number of the intra coded macro blocks in H.263 data. In the process of P frame generation, a intra coded macro block is generated when a motion estimation value representing the similarity between the previous frame and current frame does not meet a threshold. Especially the intra coded macro block has a great impact on the compression ratio. Hence the paper, we tried to minimize the number of intra coded macro blocks in H.263 data stream which is transcoded from MPEG 2 in a compressed domain. For the purpose, we propose a guided search method for transcoding the INTRA coded block into INTER coded block using the information about motion vectors surrounding the intra macro block in order to minimize the complexity of the motion estimation process. The experimental results show that the transcoding of MPEG 2 into H.263 can be done in a real time successfully.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.145-148
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• 2007

The video shot detection based on video picture type is presented in this paper. The detection algorithm is used MPEG compressed video frame directly, not reconstructed the original image. For shot detection, I and P frame of MPEG video bit stream are classified. The detecting scene cuts at I pictures are detected by reconstructed DC image. While scene cuts at P picture frame by monitoring the percentage of Intra-macroblocks per P picture. Experimental results on the test video bit stream is shown the detection rate of $85\sim98%$ and searching time is 4 times faster than the previously known video shot detection algorithm on the decompressed video shot.

• Structural Engineering and Mechanics
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• v.61 no.4
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• pp.511-518
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• 2017

This paper presents an experimental investigation on the contribution of RCC strip in the in-filled RC frames. In this research, two frames were tested to study the behavior of retrofitted RC frame under cyclic loading. In the two frame, one was three bay four storey R.C frame with central bay brick infill with RCC strip in-between brick layers and the other was retrofitted frame with same stiffened brick work. Effective rehabilitation is required some times to strengthened the RC frames. Ferrocement concrete strengthening was used to retrofit the frame after the frame was partially collapsed. The main effects of the frames were investigated in terms of displacement, stiffness, ductility and energy dissipation capacity. Diagonal cracks in the infill bays were entirely eliminated by introducing two monolithic RCC strips. Thus more stability of the frame was obtained by providing RCC strips in the infill bays. Load carrying capacity of the frame was increased by enlarging the section in the retrofitted area.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.9
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• pp.1009-1018
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• 2015

In video coding, the first frame of a GOP is encoded in intra mode which generates a larger number of bits. In addition, the first frame is used for the inter mode encoding of the following frames. Thus the intial QP for the first frame encoding affects the first frame as well as the following frames. To determine the initial QP that maximizes the PSNR of a GOP, several algorithms which uses the ratio of the PSNR of the I frame and the PSNR of P frames of a GOP have been proposed. In this paper, we propose a new traffic model that can be used to determine the optimal initial QP simply and exactly in algorithms that use the PSNR ratio. We first analyze the characteristics of the PSNR ratio of I and P frames and the PSNR of a GOP, and then propose a new traffic model which can represent the characteristics and determine the optimal intial QP. It is shown by experimental results that the initial QP determination method with the proposed model can predict an optimal initial QP whose difference from the optimal value is less than 2. The proposed scheme can also generate the PSNR performance better than that of the existing JVT algorithm.

• Journal of Korean Society of Steel Construction
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• v.11 no.1 s.38
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• pp.69-78
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• 1999

When the lateral forces are applied to a frame, columns in the frame are usually accompanied with sidesway. If this sidesway is large, the frame is subjected to buckling and an early yielding of members which reduces the overall frame stiffness. In this study, numerical analysis of frames were conducted to evaluate the ultimate lateral strength of steel moment resisting frames permitted to sidesway under axial and lateral forces, and develope the procedure for determining the limits of column slenderness ratios. In the numerical analysis, the effects of the relative stiffness ratio between beam and column, deterioration of overall frame stiffness, slenderness ratio and loading conditions were considered. The elasto-plastic analysis method in which the $P-{\Delta}$effect is implemented, presented by the author previously, was adopted in the analysis. Incremental lateral forces were applied to the frame under constant axial loads and the generalized inverse is employed for the post-ultimate behavior.

• Journal of Korea Multimedia Society
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• v.17 no.4
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• pp.405-412
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• 2014

Due to the popularity of mobile phones, Peer-to-Peer (P2P) content sharing in mobile phones is highly desirable, especially in a mobile data connection. In addition, there has been an increasing demand for content sharing applications for P2P communication in Android-based smartphones as ubiquitous mobile devices. However, due to wireless network limits, unstable characteristic and restricted storage space, mobile users confront challenges in establishing connections and sharing video frames with other users. To solve this issue, we propose an architectural design and implementation of key frame sharing application that uses Chord, a distributed lookup protocol to establish a content sharing platform for mobile devices, combined with the Chord SDK based on Android. Our proposed system enables users easily to share key information on video data in real-time over a wireless network without manual processing of devices which join or leave the group and cost associated with the 3G/4G network.