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Export Restrictions and COVID-19
Mamadou Thiam,Jean-Claude Kouakou Brou,Benur Andrade Varela 세종대학교 경제통합연구소 2021 Journal of Economic Integration Vol.36 No.4
As a result of COVID-19, the export of medical goods has been subject to various global restrictions. Consequently, several countries have increased the supply of medical goods to alleviate the effects of this health crisis. This study entails a theoretical and empirical analysis of the effects of such remedial measures. To this end, we have utilized a consistent conjectural variation in a three-country model entailing firms competing in two reciprocal markets in Cournot. When the restrictions are unilateral, the number of medical goods available in the exporting country tends to increase, culminating in better management of the pandemic. In contrast, bilateral restrictions typically reduce the total output of medical goods; therefore, they are inappropriate in a pandemic situation.
Beyond Factory Asia: Fuelling Growth in a Changing World
Ramesh Subramaniam,Thiam Hee Ng 한국경제연구원 2013 한국경제연구원 세미나자료 Vol.13 No.18
Factory Asia-these two simple words help define Asia’s phenomenal economic growth over the past 2 decades. A growing population eager to earn more provided relatively cheap and abundant labor in the last decade of the 20th century and the early part of the current century, producing many of the manufactured consumer goods the world needed. East Asia’s exports surged, particularly final goods destined for the United States (US) and eurozone economies. The array of goods produced and traded evolved rapidly-from agricultural to (low-value) manufacturing, and into services in a few cases. However, the global financial crisis and uncertain growth prospects in the United States and the eurozone have dampened demand for Asian exports. At the same time, rising wages threaten to erode the cost advantage that the region once had, managing supply chains has become more complex, and new technologies are transforming manufacturing. This paper aims to explore how Asia economies can move beyond Factory Asia. It will examine the strategies that Asian economies can pursue to meet these challenges. The paper concludes by discussing a range of policy, institutional, legal, and regulatory issues relating to reforms that will drive Asia’s economic and social transformation in its quest for a new Factory Asia model.
Sean WL Ho,Keng Thiam Lee 대한정형외과학회 2017 Clinics in Orthopedic Surgery Vol.9 No.4
The EndoButton is a commonly used device for femoral fixation of anterior cruciate ligament grafts. Complications from its usage remain rare. Incorrect femoral tunnel placement may increase the risk of intra-articular displacement of the EndoButton. We present a case of anterior femoral tunnel placement resulting in intra-articular displacement of the EndoButton after failure. A 24-yearold man presented to us after failure of anterior cruciate ligament reconstruction performed 3 years prior. Radiographs revealed an intra-articular displacement of the EndoButton. Intraoperatively, it was noted that the femoral tunnel exit was within the suprapatellar pouch, with the displaced EndoButton lodged between the posterior aspect of the lateral tibial plateau and the capsule. Intra-articular displacement of the EndoButton is a rare complication and has only been reported twice in the literature. Anterior placement of the femoral tunnel may predispose patients to this complication and it is recommended to check the EndoButton position intraoperatively to avoid such a complication, especially for the unexperienced surgeon.
Initial Study of a Wire Mesh Tomography Sensor for Liquid/Gas Component Investigation
Mohd Hafiz Fazalul Rahiman,Siow Lean Thiam,Ruzairi Abdul Rahim,Zulkarnay Zakaria,Vernoon Ang Wei Neng 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.5
Experimental studies have been carried out to study the principle operation of the conductive type wire-mesh tomography sensor and analyse the wire-mesh tomography sensor for the liquid/gas two-phase flow interface and void fraction distribution in a process column. The measurement of the two-phase flows in the process column is based on the cross-sectional local instantaneous conductivity. The sensor consists of two planes of parallel electrode wires with 16 electrodes each and was placed orthogonally with each plane. The sensor electrode wires were made of tinned copper wire with an outer diameter of 0.91 mm which stretched over the sensor fixture. Therefore, this result in the mesh grid size with 5.53×5.53mm². The wire-mesh sensor was tested in a horizontal liquid/gas two-phase flows process column with nominal diameter of 95.6 mm and the sampling frequency of 5882.3529 Hz. The tomogram results show that the wire-mesh tomography provides significant results to represent the void fraction distribution in the process column and estimation error was found in the liquid/gas interface level.
Explicit controller of a single truck stability and rollover mitigation
Fitri Yakub,Pauziah Muhammad,Hoong Thiam Toh,M. Sofian Abu Talip,Yasuchika Mori 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.9
This study’s aim was to enhance the maneuverability safety in the coordination of active rear steering and differential braking control for untripped rollover prevention, which performs a panic lane change maneuver to bypass the obstacle encountered in the path. In avoiding rollover accidents, there are several guidance preventions, such as to secure the vehicle from the intention o f the driver and to position the vehicle in the actual lane. A crosswind effect is also found to be a crucial factor since this may cause other accidents. Therefore, there is a need to monitor the driver’s actual path and maintaining the stability of the vehicle along the desired path in order to avoid rollover accidents. We extended the analysis of Yakub and Mori (2015) [1], by suggesting an explicit model of predictive control, which includes an active rear steering and braking control for each wheel. Our main focus was on the general trade-off between rollover prevention and path tracking. The effectiveness of the explicit control model invented for this study was measured and validated by the simulation results for a heavy vehicle proposed in this research.
Shane Tan,Jacklyn Yek,Wei Chen Ong,Chor Hoong Hing,Jane LIM,Thiam Chye LIM 대한성형외과학회 2013 Archives of Plastic Surgery Vol.40 No.3
Background Our objective was to compare the complication rates of two common breast reconstruction techniques performed at our hospital and the cost-effectiveness for each test group. Methods All patients who underwent deep inferior epigastric perforator (DIEP) flap and transverse rectus abdominis myocutaneous (TRAM) flap by the same surgeon were selected and matched according to age and mastectomy with or without axillary clearance. Patients from each resultant group were selected, with the patients matched chronologically. The remainder were matched for by co-morbidities. Sixteen patients who underwent immediate breast reconstruction with pedicled TRAM flaps and 16 patients with DIEP flaps from 1999to 2006 were accrued. The average total hospitalisation cost, length of hospitalisation, and complications in the 2 year duration after surgery for each group were compared. Results Complications arising from both the pedicled TRAM flaps and DIEP flaps included fat necrosis (TRAM, 3/16; DIEP, 4/16) and other minor complications (TRAM, 3/16; DIEP, 1/16). The mean hospital stay was 7.13 days (range, 4 to 12 days) for the pedicled TRAM group and 7.56 (range, 5 to 10 days) for the DIEP group. Neither the difference in complication rates nor in hospital stay duration were statistically significant. The total hospitalisation cost for the DIEP group was significantly higher than that of the pedicled TRAM group (P<0.001). Conclusions Based on our study, the pedicled TRAM flap remains a cost-effective technique in breast reconstruction when compared to the newer, more expensive and tedious DIEP flap
Tan, Shane,Lim, Jane,Yek, Jacklyn,Ong, Wei Chen,Hing, Chor Hoong,Lim, Thiam Chye Korean Society of Plastic and Reconstructive Surge 2013 Archives of Plastic Surgery Vol.40 No.3
Background Our objective was to compare the complication rates of two common breast reconstruction techniques performed at our hospital and the cost-effectiveness for each test group. Methods All patients who underwent deep inferior epigastric perforator (DIEP) flap and transverse rectus abdominis myocutaneous (TRAM) flap by the same surgeon were selected and matched according to age and mastectomy with or without axillary clearance. Patients from each resultant group were selected, with the patients matched chronologically. The remainder were matched for by co-morbidities. Sixteen patients who underwent immediate breast reconstruction with pedicled TRAM flaps and 16 patients with DIEP flaps from 1999 to 2006 were accrued. The average total hospitalisation cost, length of hospitalisation, and complications in the 2 year duration after surgery for each group were compared. Results Complications arising from both the pedicled TRAM flaps and DIEP flaps included fat necrosis (TRAM, 3/16; DIEP, 4/16) and other minor complications (TRAM, 3/16; DIEP, 1/16). The mean hospital stay was 7.13 days (range, 4 to 12 days) for the pedicled TRAM group and 7.56 (range, 5 to 10 days) for the DIEP group. Neither the difference in complication rates nor in hospital stay duration were statistically significant. The total hospitalisation cost for the DIEP group was significantly higher than that of the pedicled TRAM group (P<0.001). Conclusions Based on our study, the pedicled TRAM flap remains a cost-effective technique in breast reconstruction when compared to the newer, more expensive and tedious DIEP flap.