• Title/Summary/Keyword: Rotation Operation

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Shoulder Range of Motion in Postmastectomy Patients (유방암 절제술 후 환자의 어깨관절 가동범위 조사)

  • Eom, Ae-Yong;Lee, Eun-Ok
    • Asian Oncology Nursing
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    • v.4 no.1
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    • pp.62-70
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    • 2004
  • The purpose of this study was to use as a basic data to develop suitable nursing intervention program and decide an appropriate intervention time after assessing shoulder range of motion in postmastectomy from 2 weeks to 3 month. 147 patients are chosen as study subject among patients who were in recovery of 2weeks, 1month, 2months and 3 months after surgical operation which is modified radical mastectomy. Data were collected at oncology medicine local and general surgery local in Seoul National University Hospital from May, 2003 to October, 2003. The range of motion of the shoulder(flexion, extension, abduction, internal rotation, external rotation) were examined. Analysis of data that shoulder range of motion average and standard deviation, percentage of the unaffected side and affected side compare with normal shoulder range of motion. Paired t-test was adopted to analyze the difference between affected side and unaffected side. Conclusion from this study is as following, 1. The most serious problem was external rotation (0.56%) and internal rotation is the next (19.9%) in 5 kinds of shoulder range of motion in 2 weeks after surgical operation 2. There was no difference in internal rotation after post operation 3 months but there were differences and shown to recover more than 90% in flexion and abduction. Also shoulder function incresed in flextion less than 80% and more than 80% in external rotation. As this study finding was shown that shoulder range of motion did not get back perfectly except of internal rotation and extension in point of 3 months after breast cancer surgical operation. External rotation was specially shown the lowest result so it is needed to exercise for improving their physical functioning recovery in postmastectomy patients. And it is suggested to study for helping to postmastectomy patients' physical and psycosocial functions with the early rehabilitation program which is based on these results.

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An Efficient In-Place Block Rotation Algorithm and its Complexity Analysis (효율적 In-Place Block Rotation 알고리즘과 복잡도 분석)

  • Kim, Pok-Son;Kutzner, Arne
    • Journal of the Korean Institute of Intelligent Systems
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    • v.20 no.3
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    • pp.428-433
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    • 2010
  • The notion "block rotation" denotes the operation of exchanging two consecutive sequences of elements uv to vu. There are three already well-known block rotation algorithms called BlockRotation, Juggling and Reversal algorithm. Recently we presented a novel block rotation algorithm called QuickRotation. In this paper we compare QuickRotation to these three known block rotation algorithms. This comparison covers a complexity analysis as well as benchmarking and shows that a switch to QuickRotation is almost always advantageous.

The Surgical Treatment of Acute Acromioclavicular Joint Dislocation Using C-C Sling Method and Modified Phemister Operation (급성 견봉쇄골관절 탈구에서 변형된 Phemister 술식과 C-C sling 술식의 결과 비교)

  • Chun, Churl-Hong;Shim, Dae-Moo;Jeung, Ul-Oh;Lee, Jong-Myoung;Lee, Byung-Chang;Kim, Joung-Woo
    • Clinics in Shoulder and Elbow
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    • v.9 no.1
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    • pp.60-67
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    • 2006
  • Purpose: The purpose of this study was to compare the method of using coraco-clavicular (C-C) sling with modified Phemister operation by postoperative clinical results, radiologic analysis and complications. Materials and Methods: 33 patients of acromioclavicular joint dislocation were included in this study. Thirteen patients were treated with simple C-C sling method and twenty patients were treated with modified Phemister operation. The assesment of clinical and radiological evaluation were performed and the final results were examined by using the Weitzman's classification. Results: In the final result of C-C sling method group, forward elevation $161^{\circ}$, external rotation $70^{\circ}$, internal rotation T8 level, Visual Analogue Scale (VAS) 83.3 points were checked. In modified Phemister operation group, forward elevation $155^{\circ}$, external rotation $67^{\circ}$, internal rotation T6 level, VAS 83.8 points were checked. In coracoclavicular distance of C-C sling method group, pre-operation 12.82 mm and last follow up 8.37 mm were checked. In modified Phemister operation group, pre-operation 12.8 mm and last follow up 7.7 mm were checked. In functional evaluation by the Weitzman criteria, C-C sling group had excellent 8, good 1, fair 1 and modified Phemister group had excellent 13, good 4, fair 3. Conclusion: C-C sling method would be the better than the Modified Phemister operation because of short operation time and smaller skin incision.

Offset Phase Rotation Shift Keying and Phase Silence Rotation Shift Keying Modulation for Medical In-Body WBAN Systems (의료용 In-Body WBAN 시스템을 위한 Offset Phase Rotation Shift Keying 및 Phase Silence Sotation Shift Keying 변조 방식)

  • Choi, Il-Muk;Won, Kyung-Hoon;Kim, Ki-Yun;Choi, Hyung-Jin
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37 no.5A
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    • pp.290-297
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    • 2012
  • In this paper, we proposed new modulation schemes, Offset Phase Rotation Shift Keying (OPRSK) and Phase Shift Rotation Shift Keying (PSRSK), for medical in-body wireless body area network (WBAN) systems. In IEEE, the WBAN system is assigned as 802.15. Task Group (TG) 6, and the related standardization is being progressed. Recently, in this Group, Phase Silence Shift Keying (PSSK), Phase Silence Position Keying (PSPK) and Phase Rotation Shift Keying (PRSK), which can obtain higher power efficiency, are proposed as new modulation schemes for low-power operation of WBAN system. However, they have a disadvantage for non-linear amplifier distortion. Therefore, in this paper, we proposed OPRSK and PSRSK, which are robust to non-linear amplification, by employing a phase offset in constellation and a power distribution in symbol duration, and verified that the proposed methods have good perfomance and stable operation through performance evaluation.

QRD-RLS Algorithm Implementation Using Double Rotation CORDIC (2회전 CORDIC을 이용한 QRD-RLS 알고리듬 구현)

  • 최민호;송상섭
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.29 no.5C
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    • pp.692-699
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    • 2004
  • In this paper we studied an implementation of QR decomposition-based RLS algorithm using modified Givens rotation method. Givens rotation can be obtained with a sequence of the CORDIC operations. In order to reduce the computing time of QR decomposition we restricted the number of iterations of the CORDIC operation per a Givens rotation and used double-rotation method to remove the square-root in the scaling factor.

THE EVALUATION OF REPRODUCIBILITY OF OPERATION PLAN WITH THE COMPARISON BETWEEN STO AND POST-OPERATIVE JAW POSITION IN ORTHOGNATHIC SURGERY (악교정 수술에서 STO와 술 후 악골위치 비교를 통한 이동량 재현성에 대한 평가)

  • Kwon, Seok-Woo;Jee, Yu-Jin;Lee, Baek-Soo;Lee, Deok-Won
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.34 no.6
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    • pp.628-634
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    • 2008
  • The purpose of this study is to examine reproducibility of operation plan and 3-dimentional jaw movement patterns by comparing jaw position of STO with post-operative jaw position. Twenty patients with class III dental and skeletal malocclusion who were treated with Le-Fort I osteotomy and B-SSRO were reviewed. Lateral cephalometric radiographs were taken within two weeks before operation and two days after operation. Cephalometric radiographs were compared and analyzed with orthognathic computer program '$V-Ceph^{TM}$'. Post-operative maxillary advancement was insufficient compared to maxillary advancement through STO. Post-operative setback movement was over compared to mandibular setback movement through STO. But statistically this is not significant. Maxillary vertical location is insignificant on the whole. Especially post-operative maxillary clockwise rotation is significant compared to maxillary rotation through STO. Post-operative maxillary clockwise rotation tendency is generally observed in all patients. So surgeons and staffs must consider this tendency when operation plan is established ans operation is being performed. Using intra or extra oral marking points, face bow, and bite plate will make exact surgery possible.

A Study on the Rotation Accuracy According to Unbalance Variation of High Precision Spindle Unit for Machine Tool (고정밀 회전체의 불평형 변동에 따른 회전정밀도 영향에 관한 연구)

  • Kim, Sang-Hwa;Kim, Byung-Ha;Jin, Yong-Gyoo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.11 no.3
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    • pp.174-181
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    • 2012
  • The spindle unit is a core part in high precision machine tool. Rotation accuracy of spindle unit is needed for high dignity cutting and improving the performance of machine tool. However, there are many factors to effect to rotational error motion(rotation accuracy). This study studied how rotational error motion is variation when unbalance amount is variation. Rotation accuracy of initial spindle unit is decided depending on parts and assembly such as bearing. When it is rotation, vibration and noise is appeared depending on volume of unbalance amount, so it works to decrease unbalance amount. The purpose of the study tests that unbalance amount how much effects to initial rotation condition. The result of the study shows that accuracy of parts and assembly is highly necessary to reach high rotation accuracy and unbalance amount hardly effects to initial rotation accuracy. However, it shorten spindle's life because vibration and noise is increasing by increasing unbalance amount and we can expect situation that rotation accuracy is falling by long time operation.

A design of Floating Point Arithmetic Unit for Geometry Operation of Mobile 3D Graphic Processor (모바일 3D 그래픽 프로세서의 지오메트리 연산을 위한 부동 소수점 연산기 구현)

  • Lee, Jee-Myong;Lee, Chan-Ho
    • Proceedings of the IEEK Conference
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    • 2005.11a
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    • pp.711-714
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    • 2005
  • We propose floating point arithmetic units for geometry operation of mobile 3D graphic processor. The proposed arithmetic units conform to the single precision format of IEEE standard 754-1985 that is a standard of floating point arithmetic. The rounding algorithm applies the nearest toward zero form. The proposed adder/subtraction unit and multiplier have one clock cycle latency, and the inversion unit has three clock cycle latency. We estimate the required numbers of arithmetic operation for Viewing transformation. The first stage of geometry operation is composed with translation, rotation and scaling operation. The translation operation requires three addition and the rotation operation needs three addition and six multiplication. The scaling operation requires three multiplication. The viewing transformation is performed in 15 clock cycles. If the adder and the multiplier have their own in/out ports, the viewing transformation can be done in 9 clock cycles. The error margin of proposed arithmetic units is smaller than $10^{-5}$ that is the request in the OpenGL standard. The proposed arithmetic units carry out operations in 100MHz clock frequency.

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A Study on the Rotation-Induced Birefringence in Plastic Disk Substrate (회전에 의해 플라스틱 기판에 추가로 발생하는 복굴절의 측정에 관한 연구)

  • 김종선;윤경환
    • Transactions of Materials Processing
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    • v.12 no.8
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    • pp.730-737
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    • 2003
  • Extensive studies have been conducted for reducing the residual stresses and birefringence in injection-molded optical disk substrate Flow-induced and thermally-induced stresses and birefringence have been found as two main sources during injection molding process. However, high speed rotation also induces extra stresses and birefringence in real operation of disk drives. In the present paper rotation-induced in-plane birefringence has been measured and presented for CD and DVD substrates at different radial position. About 10 - 15 nm of extra retardation in one pass has been measured up to 4,800 rpm. The distribution of extra rotation-induced birefringence will be valuable data for designing an optimal optical disk substrate. Finally, experimental results were compared with the extra stresses calculated from simple formulation.

Management of Irrigation Reservoir to Overcome Drought by Operation Rule Curve and WWW (이수관리곡선과 WWW 에 의한 관개저수지의 이수관리)

  • 민진우;문종필;김영식;박승기;김태철
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 1998.10a
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    • pp.81-86
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    • 1998
  • It is difficult to know how to restrict the amount of water supply in the drought season, because there is no objective standard rules. The purpose of the study is to present management rules to overcome the drought in the irrigation reservoir by forecasting the water level and restricting water supply according to the operation rule curve and the pattern of rotation-irrigation system. From the operation rule curve drawn up by analyzing the observed water level of reservoir, the water supply rules and rotation-irrigation patterns using WWW and GIS are suggested.

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