鍛辭成章: 「閱讀促進學習」教學法中筆記摘錄與共同建構在香港非華 語初中課堂的實踐與成效

Loh Ka Yee Elizabeth,Shum Shui Kee Mark,Lai Kwok Chang,Leung Tit Hei Nixon,Lam Ka Chun 단국대학교 한문교육연구소 2019 International Han-character Education Research Vol.1 No.1

최근 홍콩에서 중국어를 모국어로 사용하지 않는 학생들을 합격시킨 주류 중등학교들이 급증하고 있다.(2016, 입법회). 이 학교는 이러한 학생의 학습 차이를 고려하여 다양한 대처를 필요로 하고 있다. 다양한 방식을 채택하여 학생들이 중국어 학습을 잘 마칠 수 있게 지원하여, 그들의 진학이 구직난을 해소하고 사회 상류로의 진출 기회가 될 수 있도록 해야 한다.(Leung et al 2017; Loh & Tam, 2016). (중국은) 중국어를 사용하지 않는 학생들에게 적합한 중국어 교육법을 제공하 는 것이 필요하다고 판단하고 있으며, 이는 해결해야 할 급선무 문제가 되었다.(shum, 2015). 본 연구는 이러한 홍콩의 상황에 집중하였다. 「阅读促进学习」(Rose&Martin, 2012) 교수법은 비 중국어 사용자 학생들의 비율이 비교적 높은 중등학교 한 곳을 선정하고, 제2외국어 교육 과정을 중국어로 하는 대외한어교육현장에서 제 2외국어 학습 기관(홍콩교육국, 2014) 및 국제 일반 중등학교 교육 증서(IGCSE)의 교육과정 개요를 참조하여, 본 교육과정(커리큘럼)을 수정 하였다. 협업과 회의를 통해 공동으로 수업을 준비하고 교육현장을 관찰하는데, 교사와 학생들이 모인 소그룹 인터뷰, 필기 및 수업 원본 분석 등의 방법을 진행하였다. 이를 통해 본 교수법이 학생들에게 설명문 종류의 글을 읽고 쓰는 능력을 향상시키고 학습 동기를 높일 수 있는지의 여부를 검토하였다. 교사는 학생들이 본문을 자세하게 읽도록 한 후, 그룹 협업을 통해 그 문장에 서 핵심 키워드를 발췌하여 노트에 기록하도록 학생들을 지도하는 방법(Note Making)을 시행하고, 이어서 학생들은 상호 간의 교류와 협력에 의해 문장 속에 등장한 핵심 단어들과 구 형식, 문장 형식을 활용하여, 협업을 통해 새로운 글을 창작하고, 마지막으로 학생들이 각자 개별적으로 작문을 수행하게 하였다. 본 연구를 통해, 상술한 단계가 학생들이 문장 형식에 따른 다양한 언어 능력의 차이를 이해하도록 돕는데 효과적이며, 서로 다른 글쓰기 활동에 활용할 수 있음을 발견했다. 원전 분석 및 소그룹 인터뷰 또한 위 교수법이 학생들의 중국어 학습 동기를 향상시키는 데 효과가 있음과 학생들의 학습에 대한 믿음이 증가한 것을 보여주었다. 본 연구는 阅读促进学习 교수법이 학생들의 읽기와 쓰기 능력을 개선하고, 각 교육 절차의 실천적 성과들이 모두 시사성이 있음을 검증하였다는데 그 의의가 있다. In Hong Kong, the number of secondary schools admitting Non-Chinese Speaking (NCS) students has increased tremendously in recent years (LegCo, 2016), in which most of them are mainstream schools. To cater the learning differences of NCS students, various supportin g programs have been employed to help NCS students to improve their Chinese so as to ease their difficulties in applying for universities and finding jobs (Loh & Tam, 2016), and hence enhancing upward social mobility (Leung et al, 2017). Thus developing suitable Chinese as a Second Language (CSL) pedagogies has caught much scholarly attention with pressing needs. Under such backdrop, the paper discusses the use of “Reading to Learn (R2L)” Pedagogy (Rose & Martin, 2012) to support the junior secondary CSL teaching and learning in a secondary school with high NCS density. The research team developed school-based teachin g and learning materials based on Chinese Language Curriculum Second Language Adapted Learning Framework (EDB, 2014) and International General Certificate of Secondary Educat ion (IGCSE) syllabus. Based on collaborative lesson preparation, class observation, teachers and students focus groups, close examination of students’work, the study aims at finding the effectiveness of R2L in enhancing students’ reading and writing abilities of explanatory essays, as well as their motivation. Through Detailed Reading, Note-making, Joint Rewriting and Joint Construction, with extensive scaffolding and teacher-student interaction, students are able to understand the register variables and transfer to individual writing of explanatory essays. Discourse analysis and focus group interviews also show that R2L can enhance the motivation of students and their confidence in learning Chinese. The study explores the potential of applying R2L pedagogy to enhance the reading and writing of explanatory essay s, as well as discerning the praxis and effectiveness of various teaching stages.

Vibration-based identification of rotating blades using Rodrigues' rotation formula from a 3-D measurement

Loh, Chin-Hsiung,Huang, Yu-Ting,Hsiung, Wan-Ying,Yang, Yuan-Sen,Loh, Kenneth J. Techno-Press 2015 Wind and Structures, An International Journal (WAS Vol.21 No.6

In this study, the geometrical setup of a turbine blade is tracked. A research-scale rotating turbine blade system is setup with a single 3-axes accelerometer mounted on one of the blades. The turbine system is rotated by a controlled motor. The tilt and rolling angles of the rotating blade under operating conditions are determined from the response measurement of the single accelerometer. Data acquisition is achieved using a prototype wireless sensing system. First, the Rodrigues' rotation formula and an optimization algorithm are used to track the blade rolling angle and pitching angles of the turbine blade system. In addition, the blade flapwise natural frequency is identified by removing the rotation-related response induced by gravity and centrifuge force. To verify the result of calculations, a covariance-driven stochastic subspace identification method (SSI-COV) is applied to the vibration measurements of the blades to determine the system natural frequencies. It is thus proven that by using a single sensor and through a series of coordinate transformations and the Rodrigues' rotation formula, the geometrical setup of the blade can be tracked and the blade flapwise vibration frequency can be determined successfully.

Factors Associated with Resolution of Hypertension after Adrenalectomy in Patients with Primary Aldosteronism

Wann Jia Loh,Dawn Shao Ting Lim,Lih Ming Loh,Peng Chin Kek 대한내분비학회 2018 Endocrinology and metabolism Vol.33 No.3

Background: The aim of this study was to investigate the factors associated with resolution of hypertension after adrenalectomy inpatients with primary aldosteronism. A secondary aim was to describe our use of the contralateral ratio in adrenal venous sampling(AVS) in the setting of suboptimal successful cannulation rates. Methods: A retrospective review of patients who underwent AVS followed by unilateral adrenalectomy for primary aldosteronismwas performed. Results: Complete resolution of hypertension and hypokalemia was seen in 17 of 40 patients (42.5%), while a clinical improvementin hypertension was seen in 38 of 40 (95%). Shorter duration of hypertension, mean aldosteronoma resolution score (ARS), and ahigh ARS of 3 to 5 were associated with resolution of hypertension after adrenalectomy (P=0.02, P=0.02, and P=0.004, respectively). Of the individual components of ARS, only a duration of hypertension of ≤6 years was associated with resolution of hypertensionafter adrenalectomy (P=0.03). Conclusion: A shorter duration of hypertension was significantly associated with resolution of hypertension after adrenalectomy inpatients with primary aldosteronism.

Vibration-based identification of rotating blades using Rodrigues’ rotation formula from a 3-D measurement

Chin-Hsiung Loh,Yu-Ting Huang,Wan-Ying Hsiung,Yuan-Sen Yang,Kenneth J. Loh 한국풍공학회 2015 Wind and Structures, An International Journal (WAS Vol.21 No.6

In this study, the geometrical setup of a turbine blade is tracked. A research-scale rotating turbine blade system is setup with a single 3-axes accelerometer mounted on one of the blades. The turbine system is rotated by a controlled motor. The tilt and rolling angles of the rotating blade under operating conditions are determined from the response measurement of the single accelerometer. Data acquisition is achieved using a prototype wireless sensing system. First, the Rodrigues' rotation formula and an optimization algorithm are used to track the blade rolling angle and pitching angles of the turbine blade system. In addition, the blade flapwise natural frequency is identified by removing the rotation-related response induced by gravity and centrifuge force. To verify the result of calculations, a covariance-driven stochastic subspace identification method (SSI-COV) is applied to the vibration measurements of the blades to determine the system natural frequencies. It is thus proven that by using a single sensor and through a series of coordinate transformations and the Rodrigues' rotation formula, the geometrical setup of the blade can be tracked and the blade flapwise vibration frequency can be determined successfully.

Calibration of Portable Particulate Mattere-Monitoring Device using Web Query and Machine Learning

Loh, Byoung Gook,Choi, Gi Heung Occupational Safety and Health Research Institute 2019 Safety and health at work Vol.10 No.4

Background: Monitoring and control of PM_2.5 are being recognized as key to address health issues attributed to PM_2.5. Availability of low-cost PM_2.5 sensors made it possible to introduce a number of portable PM_2.5 monitors based on light scattering to the consumer market at an affordable price. Accuracy of light scatteringe-based PM_2.5 monitors significantly depends on the method of calibration. Static calibration curve is used as the most popular calibration method for low-cost PM_2.5 sensors particularly because of ease of application. Drawback in this approach is, however, the lack of accuracy. Methods: This study discussed the calibration of a low-cost PM_2.5-monitoring device (PMD) to improve the accuracy and reliability for practical use. The proposed method is based on construction of the PM_2.5 sensor network using Message Queuing Telemetry Transport (MQTT) protocol and web query of reference measurement data available at government-authorized PM monitoring station (GAMS) in the republic of Korea. Four machine learning (ML) algorithms such as support vector machine, k-nearest neighbors, random forest, and extreme gradient boosting were used as regression models to calibrate the PMD measurements of PM_2.5. Performance of each ML algorithm was evaluated using stratified K-fold cross-validation, and a linear regression model was used as a reference. Results: Based on the performance of ML algorithms used, regression of the output of the PMD to PM_2.5 concentrations data available from the GAMS through web query was effective. The extreme gradient boosting algorithm showed the best performance with a mean coefficient of determination (R²) of 0.78 and standard error of 5.0 ㎍/㎥, corresponding to 8% increase in R² and 12% decrease in root mean square error in comparison with the linear regression model. Minimum 100 hours of calibration period was found required to calibrate the PMD to its full capacity. Calibration method proposed poses a limitation on the location of the PMD being in the vicinity of the GAMS. As the number of the PMD participating in the sensor network increases, however, calibrated PMDs can be used as reference devices to nearby PMDs that require calibration, forming a calibration chain through MQTT protocol. Conclusions: Calibration of a low-cost PMD, which is based on construction of PM_2.5 sensor network using MQTT protocol and web query of reference measurement data available at a GAMS, significantly improves the accuracy and reliability of a PMD, thereby making practical use of the low-cost PMD possible.

Relationships of Plasma and Very Low Density Lipoprotein Lipids and Subfractions with Abdominal Fat in Chickens

Loh, Teck Chwen,Tan, Bee Koon,Foo, Hooi Ling,Norhani, Abdullah,Zulkifli, Idrus Asian Australasian Association of Animal Productio 2011 Animal Bioscience Vol.24 No.1

A study was conducted to determine the relationships between triacylglycerol (TAG) of plasma, very low density lipoprotein (VLDL) and fat deposition in two different breeds of chickens. The VLDL apolipoproteins of both breeds were also characterised. The breeds used were crossbred village chicken (AK) (Sasso crossed) and commercial broiler (CB) (Avian). They were housed in six pens with 30 female and 30 male birds of each breed per pen. Three male and three female birds from each pen were slaughtered and the blood was collected. The VLDL was isolated and sub-fractionated using Fast Protein Liquid Chromatography (FPLC). VLDL TAG of CB was significantly lower than AK. The particle size was negatively correlated with VLDL TAG and positively correlated with abdominal fat. Sub-fraction 2 contained more apo E that will enhance the lipolysis process of the VLDL TAG than subfraction 1. CB had a higher proportion of sub-fraction 2 than AK. The results showed that the proportion of sub-fraction 2 was negatively correlated with VLDL TAG concentration and positively correlated with abdominal fat.

Enhancement of Structural Safety Using Piezoelectric Bimorph

Loh, Byoung-Gook The Korean Society of Safety 2007 International Journal of Safety Vol.6 No.1

Damping out high frequency low amplitude structural vibrations using PZT bimorph is presented. Static and Dynamic analyses of the piezoelectric bimorph bender were performed. Three layer piezoelectric actuators were modeled with SOLID5 coupled-field elements using ANSYS. Static deflection and modal analyses of the piezoelectric bimorph bender are presented. Proper tuning of the values of the resistor and inductor in the shunt circuit is required for maximum vibration suppression.

ROCKET: A Robust Parallel Algorithm for Clustering Large-Scale Transaction Databases

LOH, Woong-Kee,MOON, Yang-Sae,AHN, Heejune The Institute of Electronics, Information and Comm 2011 IEICE transactions on information and systems Vol.94 No.10

<P>We propose a robust and efficient algorithm called ROCKET for clustering large-scale transaction databases. ROCKET is a divisive hierarchical algorithm that makes the most of recent hardware architecture. ROCKET handles the cases with the small and the large number of similar transaction pairs separately and efficiently. Through experiments, we show that ROCKET achieves high-quality clustering with a dramatic performance improvement.</P>

A preliminary study on the role of suspended particulate matter in the bioavailability of oil-derived polycyclic aromatic hydrocarbons to oysters

Loh, Andrew,Yim, Un Hyuk,Ha, Sung Yong,An, Joon Geon Elsevier 2018 Science of the Total Environment Vol.643 No.-

<P><B>Abstract</B></P> <P>Suspended particulate matter (SPM) refers to fine-grained materials that are suspended in water columns. By providing a surface for the adsorption of non-polar organic compounds, SPM is a carrier for persistent and toxic contaminants. A wide range of organic pollutants, including polycyclic aromatic hydrocarbons (PAHs), can be adsorbed onto SPM. The formation of particle-associated PAHs can sequentially increase the potential for exposure to and bioaccumulation by organisms. Until recently, most oil exposure studies were performed using freely dissolved and dispersed forms, and therefore the role of SPM in influencing the bioavailability and bioaccumulation of PAHs has not been considered. This study found that SPM influences the bioavailability of petrogenic PAHs in the water column and their potential for accumulation in oysters. SPM significantly enhanced the water column entrainment of petrogenic PAHs, thus increasing the potentials for uptake by exposed organisms. PAHs in the water column was highest from mechanically dispersed oil (MDO; 2.27 μg/mL) ≥ oil-SPM aggregate (OSA; 1.96 μg/mL) > water accommodated fraction (WAF; 0.19 μg/mL) but the percentage of PAHs accumulated in oysters were highest from WAF (18.3%) > MDO (14.2%) > OSA (9.62%). Despite the high water column available PAHs, oysters exposed to SPM-associated oil accumulated PAHs at half the accumulation efficiency compared with those exposed to PAHs without SPM.</P> <P><B>Highlights</B></P> <P> <UL> <LI> SPM increased entrainment of dissolved and dispersed PAHs in the water column. </LI> <LI> SPM significantly increased uptake of PAHs by oysters through ingestion of particle-bound PAHs. </LI> <LI> Strong SPM-PAHs bonds retarded dissolution of PAHs into the water column. </LI> <LI> SPM played significant roles on inhibiting accumulation of PAHs by oysters. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Evaluation and Simulation of a Waste Heat Driven Pressurized Solid-Sorption Chiller

Loh, W.S.,Rahman, K.A.,Chakraborty, A.,Saha, B.B.,Ng, K.C.,Chun, W.G. JAPAN SOCIETY OF REFRIGERATING AND AIR CONDITIONIN 2011 日本冷凍空調學會論文集 Vol.28 No.3