• Title/Summary/Keyword: overall time

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The Study of Acceptance and Physicochemical Characteristics of Beef Consomme by Boiling Time (가열시간에 따른 Beef Consomme의 기호도 및 이화학적 특성에 관한 연구)

  • 김용식;장명숙
    • Korean journal of food and cookery science
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    • v.19 no.3
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    • pp.271-279
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    • 2003
  • This study was conducted to investigate the sensory and physicochemical properties of beef consomme made with different boiling times (1, 2, 3 and 4hrs). The sensory properties were evaluated with respect to both the acceptability (color, smell, mouth feel, taste, overall acceptability) and intensity characteristics (color, smell, clarify, taste). From the results, the 3hr treatment was most favored for color, smell, mouth feel, taste and overall acceptability, from the sensory evaluation tests. According to a quantitative descriptive analysis of the sensory evaluation for the product, the color, smell and taste gave higher scores with increases in the boiling time. As for the physicochemical characteristics, the pH was increased with increasing boiling time. The reducing sugars, turbidity and viscosity increased with increasing boiling time. The colorimetric lightness values (L) decreased, and redness (a), yellowness(b) and color difference values (ΔE) increased with increasing boiling time. There were 18 free amino acids identified; the alanine, glutamic acid, arginine and leucine contents were high in the free amino acids of the consomme made with different boiling times. There were 3 free sugars identified, glucose, fructose and sucrose. The free sugar contents increased with increasing boiling time. There were changes in the mineral contents of the consomme made with different boiling time; with high K, Na and P contents. The mineral contents increased with increasing, boiling time. The results showed the consomme made by boiling for 3hrs was superior in both its sensory and physicochemical qualities.

Hardware-Aware Rate Monotonic Scheduling Algorithm for Embedded Multimedia Systems

  • Park, Jae-Beom;Yoo, Joon-Hyuk
    • ETRI Journal
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    • v.32 no.5
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    • pp.657-664
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    • 2010
  • Many embedded multimedia systems employ special hardware blocks to co-process with the main processor. Even though an efficient handling of such hardware blocks is critical on the overall performance of real-time multimedia systems, traditional real-time scheduling techniques cannot afford to guarantee a high quality of multimedia playbacks with neither delay nor jerking. This paper presents a hardware-aware rate monotonic scheduling (HA-RMS) algorithm to manage hardware tasks efficiently and handle special hardware blocks in the embedded multimedia system. The HA-RMS prioritizes the hardware tasks over software tasks not only to increase the hardware utilization of the system but also to reduce the output jitter of multimedia applications, which results in reducing the overall response time.

Effects of Different Patterns of Progress Spinner on Perceived Downloading Speed and Overall Satisfaction (Progress Spinner의 진행 패턴 차이가 사용자의 인지 진행 속도 및 만족도에 미치는 영향 연구)

  • Park, Kyeongjin;Kim, Kyungdoh
    • Journal of Korean Institute of Industrial Engineers
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    • v.43 no.3
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    • pp.184-191
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    • 2017
  • Progress indicators provide information about downloading progress and the remaining time. Two common forms of indicator are bar and spinner. However, most studies have focused on the form of bar. Therefore, we are going to investigate which patterns of progress spinner show better perceived speed and satisfaction. Also the effects of provision of time information were studied. This study provided the progress spinner with different patterns with 4 seconds and 12 seconds download latencies. The participants evaluated overall satisfaction and perceived downloading speed. As a result, 'Speed Up' patterns showed the higher perceived downloading speed and satisfaction than 'Speed Down' patterns. In 4s situation, it was better with time information was absent. In 12s situation, it was higher in terms of the perceived downloading speed when time information was provided.

Improved Response of Time-Delay System with Integrator (적분기를 갖는 시간지연 시스템의 응답특성 개선)

  • Lee, Suk-Won;Yang, Seung-Hyun;Lee, Kyu-Yong
    • Proceedings of the KIEE Conference
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    • 1999.07b
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    • pp.930-932
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    • 1999
  • Recently a new modified Smith predictor is proposed for a time-delay system with an integrator. It is shown that the approximate model yields the zero-steady state error and the disturbance compensator improved the transient response. But in case of mismatch between the plant's time-delay and model's time-delay, the overall response is not satisfactory. In this paper, it is proposed that the proper pole is added to the new modified smith predictor to improve the overall response.

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The effects of partial replacement of rice flour with wheat flour and fermentationi time on the characteristics of Jeung-Pyun (밀가루 첨가 및 발효시간에 따른 증편의 특성)

  • 김영희
    • Journal of the Korean Home Economics Association
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    • v.23 no.3
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    • pp.63-73
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    • 1985
  • This study was conducted to investigate the effects of fermentation time and the proportion of wheat flour to rice flour on Jeung-Pyun's texture. Textural characteristics were examined through sensory Evaluation and Instron Universal testing machine. The properties examined through sensory evaluation were grain, softness, sourness, chewiness and overall quality. Wigh Instron, hardness, cohesivenessm elasticity, gumminess and chewiness were measured. RESULTS : 1. Sensory evaluation data indicated that Jeung-Pyun containing 25% wheat flour and fermented 2 hrs were obtained higher scores than any other Jeug-Pyuns in the grain, softness and overall quality. 2. pHs of Jeung-pyundough and Jeung-Pyun containing 100% rice flour were lower than pHs of those with wheat flour added. 3. Volume of Jeung-Pyun increased as the proportion of wheat flour to rice flour and the length of fermentation time increased. 4. Instron measurement indicated that the hardness of Jeung-Pyun with 50% wheat flour added and 2hrs fermentation time was higher than of others.

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Performance Enhancement of IEEE 802.15.3 MAC for Simultaneously Operating Piconets

  • Peng, Xue;Peng, Gong;Kim, Duk-Kyung
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.32 no.1A
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    • pp.34-43
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    • 2007
  • In the IEEE 802.15.3 Medium Access Control (MAC) protocol, Simultaneously Operating Piconets (SOPs) are linked by the parent/child (P/C) or parent/neighbor (P/N) configuration, which work on a Time Division Multiple Access (TDMA) basis. This provides interference mitigation but the overall throughput is limited because the SOPs share the channel time exclusively. The protocol is not efficient for SOPs if we focus on the combination of interference mitigation and high throughput maintenance. In this paper Public Channel Time Allocation (Public CTA) is proposed, which is able to greatly reduce the inter-piconet interference (IPI) and achieve greater throughput without much loss of link success probability (LSP) in the SOPs. The simulation results based on the SOPs of Direct Sequence Ultra Wideband (DS-UWB) system demonstrate that the proposed scheme effectively supports the coexistence of SOPs, and it can not only significantly improve the overall throughput of SOPs but also maintain high LSP.

대기시간이 서비스 품질평가에 영향을 미치는 과정에 있어서 매개변수 및 조절변수에 관한 연구

  • Jo, Jeong-Eun;Kim, Su-Uk
    • Proceedings of the Korean Society for Quality Management Conference
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    • 2006.04a
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    • pp.14-19
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    • 2006
  • This study examined the effect of waiting in a service queue on the evaluation of service quality focused on its overall process, mediators and moderators The conceptual model of this paper integrates key variables derived from previous studies of consumer waiting behavior. Data obtained from actual customers in service queue at a hospital was used to test the theoretical framework. First, results from the path analysis confirm that negative affect and acceptability of the wait function as mediators in the process that the perceived duration of the wait affects customer's evaluation of overall service quality. Second, the analysis of the data, with the use of moderate regression shows that disconfirmation of wait time expectations, transaction importance, stability of wait time and wait environment work as moderate variables for the relationship between perceived duration of wait and negative affect. For the relationship between perceived wait time and acceptability of the wait, on the other hand, only transaction import ante shows a significant effect as a moderator.

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Query Processing based Branch Node Stream for XML Message Broker

  • Ko, Hye-Kyeong
    • International journal of advanced smart convergence
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    • v.10 no.2
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    • pp.64-72
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    • 2021
  • XML message brokers have a lot of importance because XML has become a practical standard for data exchange in many applications. Message brokers covered in this document store many users. This paper is a study of the processing of twig pattern queries in XML documents using branching node streams in XML message broker structures. This work is about query processing in XML documents, especially for query processing with XML twig patterns in the XML message broker structure and proposed a method to reduce query processing time when parsing documents with XML twig patterns by processing information. In this paper, the twig pattern query processing method of documents using the branching node stream removes the twigging value of the branch node that does not include the labeling value of the branch node stream when it receives a twig query from the client. In this paper, the leaf node discovery time can be reduced by reducing the navigation time of nodes in XML documents that are matched to leaf nodes in twig queries for client twig queries. Overall, the overall processing time to respond to queries is reduced, allowing for rapid question-answer processing.

Similarity Comparison of Mechanical Parts (다중해상도 개념을 이용한 기계 부품의 유사성 비교)

  • Hong, T.S.;Lee, K.W.;Kim, S.C.
    • Korean Journal of Computational Design and Engineering
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    • v.11 no.4
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    • pp.315-325
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    • 2006
  • It is very often necessary to search for similar parts during designing a new product because its parts are often easily designed by modifying existing similar parts. In this way, the design time and cost can be reduced. Thus it would be nice to have an efficient similarity comparison algorithm that can be used anytime in the design process. There have been many approaches to compare shape similarity between two solids. In this paper, two parts represented in B-Rep is compared in two steps: one for overall appearances and the other for detail features. In the first step, geometric information is used in low level of detail for easy and fast pre-classification by the overall appearance. In the second step, feature information is used to compare the detail shape in high level of detail to find more similar design. To realize the idea above, a multi resolution algorithm is proposed so that a given solid is described by an overall appearance in a low resolution and by detail features in high resolution. Using this multi-resolution representation, parts can be compared based on the overall appearance first so that the number of parts to be compared in high resolution is reduced, and then detail features are investigated to retrieve the most similar part. In this way, computational time can be reduced by the fast classification in the first step while reliability can be preserved by detail comparison in the second step.

A Study on Dimension Optimization of Injection-molded Automotive Bumper by Six Sigma (6시그마를 이용한 자동차 범퍼의 치수 최적화에 대한 연구)

  • Kim, Joo-Kwon;Kim, Jong-Sun;Lee, Jun-Han;Kwak, Jae-Seob
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.16 no.6
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    • pp.109-116
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    • 2017
  • In this study, the optimization of the overall dimensions of an automobile bumper was investigated through CAE and experiment using the Six Sigma method and design of experiment (DOE) method, respectively. Injection pressure, injection speed, injection time, cooling time, holding time, injection temperature, and holding pressure were selected as the vital parameters affecting the overall width of product through analysis of trivial many using CAE. The optimal values were determined using the DOE method, and we analyzed the improvement by applying the optimal conditions to the production process. As a result, the mean value of the overall width was close to the target value, with a deviation of 0.05mm, and the processability and I-MR control were remarkably improved. Finally, the dimension pass rate of the product improved by 20%.