• Title/Summary/Keyword: Deviation

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A Study on the Optimization of Temperature Deviation of Loads in Smart Reefer Container (스마트냉동컨테이너의 적재부 온도 편차 최적화에 관한 연구)

  • SangWon Park;TaeHoon Kim;DoMyung Park;DongSeop Han
    • Journal of Korea Society of Industrial Information Systems
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    • v.28 no.6
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    • pp.83-90
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    • 2023
  • In a reefer container, temperature deviation occurs between the front of the loading part with the refrigerator and the rear of the loading part with the container door due to the external environment. In particular, this temperature deviation in the transport of fresh cargo has a great influence on the freshness of the cargo. In this study, we propose a method to minimize the temperature deviation by partially shielding the T-Floor to reduce the temperature deviation and evaluating the effect of the T-Floor shielding rate on the temperature change of the reefer container loading part. The subject of the experiment was a 40 feet smart reefer container, and the T-Floor shielding rates were set to 0%, 50%, 60%, 70%, and 80%. As a result of the experiment, it occurred differently in the temperature deviation of the reefer container loading part according to the shielding rate, and it was confirmed that the temperature deviation was the most uniform when the shielding rate was 60%. By minimizing the temperature deviation of the loading part, it is possible to prevent corruption and cold damage of cargo during transportation of fresh cargo by using the smart reefer container.

Acquisition Method for Deviation Coefficients Band B and C at a Single Bearing (단일 침로에서의 자차 계수 B 와 C 획득방법)

  • Yim Jeong-Bin;Sim Yeong-Ho
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2004.11a
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    • pp.23-32
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    • 2004
  • This paper describes a new estimation method for deviation coefficients, B and C. using only measured single deviation at a fixed compass bearing. At first, some problems in the deviation synthesis with only two coefficients, B and C, are discussed using observed deviation values measured in the four USS warships. Then, acquisition theories and procedures to obtain optimal coefficients, B and C, are expanded and then the efficiencies of the proposed prediction method are evaluated. As results from evaluations, it is shown that the approximated coefficients, B and C, can give optimal approximation to observed single deviation.

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Analysis about Deviation of Upper Cervical of Patients with Whiplash injuries (교통사고로 인한 편타손상환자의 상부경추분석을 통한 고찰)

  • Lee, Kyung-yun;Park, Min-jung;Cho, Won-young;Park, Koae-hwan
    • Journal of Acupuncture Research
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    • v.20 no.6
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    • pp.27-35
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    • 2003
  • Objective: We intended to show the relation between whiplash injury and deviation of upper cervical through analysing patients having deviation of upper cervical injuried by whiplash. Methods: We chose 40 patients who have been admitted for whiplash injury syndrome in vertebral-joint center of Conmaul oriental medical hospital during 2001.10.1-2003.10.15. We examined cervical simple X-ray of them according to the traffic accident patterns and the position in the veicle. Results: The 97% of the cases showed AS deviation and the 95% of them complained neck pain. The first cases collided from the back on the driving seat showed AS deviation. The second cases collided from the front on the back seat showed AS deviation of left lateral misalignment of atlas. The third cases collided from the front on the assistant seat showed AS deviation of right lateral misalignment of atlas.

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Surgical correction of septal deviation after Le Fort I osteotomy

  • Shin, Young-Min;Lee, Sung-Tak;Kwon, Tae-Geon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.38
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    • pp.21.1-21.6
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    • 2016
  • Background: The Le Fort I osteotomy is one of the most widely used and useful procedure to correct the dentofacial deformities of the midface. The changes of the maxilla position affect to overlying soft tissue including the nasal structure. Postoperative nasal septum deviation is a rare and unpredicted outcome after the surgery. There are only a few reports reporting the management of this complication. Case Presentation: In our department, three cases of the postoperative nasal septum deviation after the Le Fort I osteotomy had been experienced. Via limited intraoral circumvestibular incision, anterior maxilla, the nasal floor, and the anterior aspect of the septum were exposed. The cartilaginous part of the nasal septum was resected and repositioned to the midline and the anterior nasal spine was recontoured. Alar cinch suture performed again to prevent the sides of nostrils from flaring outwards. After the procedure, nasal septum deviation was corrected and the esthetic outcomes were favorable. Conclusion: Careful extubation, intraoperative management of nasal septum, and meticulous examination of preexisting nasal septum deviation is important to avoid postoperative nasal septum deviation. If it existed after the maxillary osteotomy, septum repositioning technique of the current report can successfully correct the postoperative septal deviation.

Correction of the deviated tip and columella in crooked nose

  • Suh, Man-Koon
    • Archives of Plastic Surgery
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    • v.47 no.6
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    • pp.495-504
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    • 2020
  • The primary procedural components of deviated nose correction are as follows: osteotomy to correct bony deviation, septal deviation correction, manipulation of the dorsal septum to correct upper lateral cartilage deviation, and correction of functional problems (manipulation for correction of internal valve collapse and hypertrophy of the inferior turbinate). The correction of tip and nostril asymmetry cannot be overemphasized, because if tip and nostril asymmetry is not corrected, patients are unlikely to provide favorable evaluations from an aesthetic standpoint. Tip asymmetry, deviated columella, and resulting nostril asymmetry are primarily caused by lower lateral cartilage problems, which include deviation of the medial crura, discrepancy in the height of the medial crura, and asymmetry or deformity of the lateral crura. However, caudal and dorsal septal deviation, which is a more important etiology, should also be corrected. A columellar strut graft, correction of any discrepancy in the height of the medial crura, or lateral crural correction is needed to correct lower lateral cartilage deformation depending on the type. In order to correct caudal septal deviation, caudal septal shortening, repositioning, or the cut-and-suture technique are used. Surgery to correct dorsal septal deviation is performed by combining a scoring and splinting graft, a spreader graft, and/or the clocking suture technique. Moreover, when correcting a deviated nose, correction of asymmetry of the alar rim and alar base should not be overlooked to achieve tip and nostril symmetry.

Clinical study on deviation of upper cervical of patients with cervical syndrome (경추 증후군 환자에서 상부경추변위에 대한 임상적 고찰)

  • Cho, Meoung-Jae;Kim, Dong-Il;Park, Koae-Hwan
    • Journal of Acupuncture Research
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    • v.17 no.3
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    • pp.188-198
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    • 2000
  • Objectives : We perform this study for help to recovery of cervical syndrome by analyzing structural deviation and cervical curvature in upper cervical vertebrae and definiting functional change through cervical body heat change in cevical lesion which is estimated by DITI. Methods : From sep. 1st. 1998 to aug, 31th. 1999, I make an experiment with the 102 OPD patients of this hospital vertebral-joint center, which were judged as a cervical syndrome and confirmed in upper cervical deviation by motion palpation and then were taken cervical simple X-ray and cervical thermograpy. Results : In the classfication of upper cervical deviation, AS deviation took 98% and abnormal cervical curvature took 68%. in the Chief complain neck-shoulder pain took 78%. In the results of DITI, average value of all objects show $032{\pm}0.18$ as a meaning result. Conclusions : In medical treatment of cervical syndrome, this result shows necessity of keeping pace with remedy of upper cervical deviation and medical treatment of functional change and We can learn necessity of detailed assessment through continual clinical examination.

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Estimation of Allowable Path-deviation Time in Free-space Optical Communication Links Using Various Aircraft Trajectories

  • Kim, Chul Han
    • Current Optics and Photonics
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    • v.3 no.3
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    • pp.210-214
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    • 2019
  • The allowable path-deviation time of aircraft in a free-space optical communication system has been estimated from various trajectories, using different values of aircraft speeds and turn rates. We assumed the existence of a link between the aircraft and a ground base station. First, the transmitter beam's divergence angle was calculated through two different approaches, one based on a simple optical-link equation, and the other based on an attenuation coefficient. From the calculations, the discrepancy between the two approaches was negligible when the link distance was approximately 110 km, and was under 5% when the link distance ranged from 80 to 140 km. Subsequently, the allowable path-deviation time of the aircraft within the tracking-error tolerance of the system was estimated, using different aircraft speeds, turn rates, and link distances. The results indicated that the allowable path-deviation time was primarily determined by the aircraft's speed and turn rate. For example, the allowable path-deviation time was estimated to be ~3.5 s for an aircraft speed of 166.68 km/h, a turn rate of $90^{\circ}/min$, and a link distance of 100 km. Furthermore, for a constant aircraft speed and turn rate, the path-deviation time was observed to be almost unchanged when the link distance ranged from 80 to 140 km.

Study on Motor Characteristics due to Deviation of the Wheel Diameters with Parallel Operation

  • Lee, Hyung-Woo
    • Journal of Electrical Engineering and Technology
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    • v.8 no.1
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    • pp.106-109
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    • 2013
  • It is desirable and advantageous to feed parallel propulsion with induction motors by a single voltage source inverter. However, effects of deviation of the wheel diameters on motor current, rotor speed and torque should be also considered for parallel operation. In order to understand the behavior and characteristics, a simple simulation model is developed by using a commercial Matlab Simulink. From the results, it is clear to manage the diameter deviation of the wheels which are connected to traction motors.

LEAST ABSOLUTE DEVIATION ESTIMATOR IN FUZZY REGRESSION

  • KIM KYUNG JOONG;KIM DONG HO;CHOI SEUNG HOE
    • Journal of applied mathematics & informatics
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    • v.18 no.1_2
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    • pp.649-656
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    • 2005
  • In this paper we consider a fuzzy least absolute deviation method in order to construct fuzzy linear regression model with fuzzy input and fuzzy output. We also consider two numerical examples to evaluate an effectiveness of the fuzzy least absolute deviation method and the fuzzy least squares method.

Asymptotic Properties of LAD Esimators of a Nonlinear Time Series Regression Model

  • Kim, Tae-Soo;Kim, Hae-Kyung;Park, Seung-Hoe
    • Journal of the Korean Statistical Society
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    • v.29 no.2
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    • pp.187-199
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    • 2000
  • In this paper, we deal with the asymptotic properties of the least absolute deviation estimators in the nonlinear time series regression model. For the sinusodial model which frequently appears in a time series analysis, we study the strong consistency and asymptotic normality of least absolute deviation estimators. And using the derived limiting distributions we show that the least absolute deviation estimators is more efficient than the least squared estimators when the error distribution of the model has heavy tails.

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