492 research outputs found
Paper roof
No full textThis report covers the development of my Final Year Project, a short film titled Paper
Roof. Paper Roof is a short film about two young sisters running away from trouble at home
to build a cardboard house together, and a heavy downpour threatened to put an end to their
escapade. It is a 12-minute long short film directed by Judith Tong and produced by myself.
We worked in a core team of six, namely the Director, Producer, Director-ofPhotography,
Production Designer, Editor and Sound Supervisor. Our production is
supervised by co-mentors Nicole Midori Woodford and Ross Adrian Williams. This is the
core group of people who followed through and supported the project from pre-production to
post-production.
Here is a name list of our core team-
• Director: Tong Shi Ya, Judith
• Producer: Kua Yi Ting, Evon
• Director-of-Photography: Jeth Heng Guan Seng
• Production Designer: Evelyn Ng Miao Ling
• Editor: Chan Zi Xin (Shermaine)
• Sound Supervisor: Brenda Jean Yong
This report comprises of my workflow from pre-production to post-production as the
role of a Producer. It will also act as an objective reflection of my responsibilities in this
project. It is important to note that we had a writer, Lou Mei Jun, as part of our initial core
crew. Judith took over the role in the later part of pre-production, assuming the position of a
writer-director.Bachelor of Fine Art
Simulations of drone aerodynamics in an indoor environment
No full textAdvancements in Technology in the recent years has brought about convenience for the people and is in some cases has saved lives. Some examples will be the usage of robots to aid bomb disposal units, Unmanned Aerial Vehicle (UAV) in the military as surveillance and reconnaissance and even usage of drones to snap aerial videos and photos. This has in turn give rise to the increase in usage of drones within the general population. Furthermore,
drones are small enough to navigate through tight spaces and corners which are unreachable by man and even able respond to emergencies faster than any man. Hence, with studies conducted to allow a single operator to control a swamp of drones, this study aims to incorporate this technology as an emergency system to aid data centers in times of power failure through investigating the effects of drone aerodynamics using computational fluid dynamics (CFD). Using the open source OpenFOAM 4.1 and RANS turbulence modelling method, an operating scenario of the drone aerodynamic in the data centre was simulated. A simplified computational domain was created to represent the geometries of the drone downwash in a walkway, 1m by 1m, with 2m racks on 2 sides. Boundary conditions and other domain properties were chosen to represent the real scenario as close as possible. For the geometry,
it is generated using double grading to provide for a finer meshes close to the walls and floor. The drone is tested at different hovering heights (y = 2m / 1.5m / 1m). Temperature evaluation of the downwash is obtained through the simulation in OpenFOAM to determine the heat transfer efficiency through convection and conduction, which are the only mechanisms affecting the outcome. In conclusion, the lower the hovering height of the drone, the higher the overall change in temperature will be.Bachelor of Engineering (Mechanical Engineering
Investigation of High Efficient THz Phase Shifter
No full textThe fused silica substrate coated with Indium Tin Oxide (ITO), has been widely used as electrode for modulating liquid crystal THz phase shifter. However, the absorption of the ITO limits its application, leading to the request of efficient electrode for electric modulation or other way for effective controlling liquid crystal in THz region. In this work, novel schemes for modulating the liquid crystal THz phase shifter are developed and investigated. First, using copper chromium dioxide (CuCrO2, Copper Chromium Dioxide) films to replace ITO, the performance of phase shifter is characterized. The 2\uef\ub0 phase shifter for 1THz is realized with the transmittance as high as 70%, leading to the nature of low loss in THz region. In addition, the modulation depth per voltage as larger as 25.7 (degree\ue2V-1) also reveal the potential for real application. To explore the feasibility of free conductive film, the silicon substrates were used as substrates and also electrodes, which can simplify the manufacturing process. Besides, the role of the Schoottky/Ohmic contact within the electric controlled THz phase shifter are studied in detail. The experimental results not only successfully demonstrate the high performance of THz phase shifter based on Si as the electrode also discuss the inevitable contact issue within the shifter. In the last part, by doping the azo-dye into the cell of phase shifter, the orientation of the liquid crystal was driven by lightening with the blue/UV laser, indicating the potential of electrode-free photon driving mechanism. In this thesis, a device of 100\uef\uadm is successfully manufactured. The time delay of the terahertz electric field signal of the device can reach 0.1ps, and the amount of phase shift is about 36 degrees at 1THz. Despite of the nature of free electrode, the short absorption depth result in the limited phase-shift. Meanwhile, the feasibility and the future of optical modulation were also discussed as well.transmittance as high as 70%, leading to the nature of low loss in THz region. In addition, the modulation depth per voltage as larger as 25.7 (degree\ue2V-1) also reveal the potential for real application. To explore the feasibility of free conductive film, the silicon substrates were used as substrates and also electrodes, which can simplify the manufacturing process. Besides, the role of the Schoottky/Ohmic contact within the electric controlled THz phase shifter are studied in detail. The experimental results not only successfully demonstrate the high performance of THz phase shifter based on Si as the electrode also discuss the inevitable contact issue within the shifter. In the last part, by doping the azo-dye into the cell of phase shifter, the orientation of the liquid crystal was driven by lightening with the blue/UV laser, indicating the potential of electrode-free photon driving mechanism. In this thesis, a device of 100\uef\uadm is successfully manufactured. The time delay of the terahertz electric field signal of the device can reach 0.1ps, and the amount of phase shift is about 36 degrees at 1THz. Despite of the nature of free electrode, the short absorption depth result in the limited phase-shift. Meanwhile, the feasibility and the future of optical modulation were also discussed as well
Design of a miniature fan for industrial application
No full textThis project studies on the heat transfer enhancement due to turbulent flow in the test rig. The fluid properties are set to be at a constant rate in order to achieve a fair result for all testing. The testing involved ribs installed into the conduit with a set of different configuration arrangements. The results from previous experiment shows that no aero foil and with the enhancement of tapered conduit produced better efficiency in heat transfer. However, the study of heat transfer efficiency can be further improved. Therefore the study to enhance heat transfer is being made in this project by creating turbulent flow within the conduit. The velocity and temperature of the heat sink were observed to increase or decrease depending on the arrangement of the turbulators. Experimental result shows that single turbulator configuration achieved the best heat transfer rate. The single turbulator create turbulent flow within the conduit which improved the heat transfer rate. However, the arrangement of a pair of turbulator did not improve the heat transfer rate. The arrangement of a pair of turbulator has higher temperature compared to single turbulator. The pair of turbulator has created flow blockage instead of turbulent flow. Nevertheless, the key aspect to improve heat transfer is to create turbulent flow.Bachelor of Engineering (Mechanical Engineering
Class of 2009, Indiana University School of Law Graduate Legal Studies
No full textPictured:
Hasan Alaz, Yazeed Almohsen, Han-Chih Chan, Bo Chen, Jun Chen, Ko-Chang Chen, Le Chen, Meida Chen, Mei-chen Cheng, Huan Ting Chiu, Yung-Chen Chiu, Shih-Lan Chou, Shaoqi He, Lea Heimbeck, Byoung Jo Heo, Po Wan Ho, Chia-Yi Hsieh, Kai-Yu Hsu, Eve Huchon, Jungwon Hur, HyungHoon Jang, Woo-Hyouk Jeong, Bonakele Jora, Se Hee Jung, Nu Ri Jung, Minho Kang, Boakai N. Kannah, Wookbai Kim, Xianghui Kim, Xianghui Kong, Wen-Hsiang Kung, Chankoog Kwon, James Lalremruata, Chae Joon Lee, In Sang Lee, Yoon Jung Lee, Jiawei Li, Mengyang Li, Yongyuan Li, Chang Liu, Qian Liu, Jia Lu, Junthorn Meechuen, Sotaro Murai, Raheela Narchoor, Huong Nguyen, Andono Nugrahadi, Warittha Papangkorn, Junsun Park, Huaying Piao, Magdalena Poltorak, Gustavo Ribeiro, Yerkebulan Shirkinbay, Ruo-Ci Shu, Chun-Chang Su, Piyarudee Suebpetch, Monai Supanit, Chan Tang, Chayasorn Tanthawewongs, Pamela Tibihikirra-Kalyegira, Nareenad Tongbuaban, Max van der Klaauw, Zeng Wan, Shih-Chieh Wang, Fu-Jung Wang, Fu-Jung Wu, Ganlin Xia, Jong-Sam Yang, Xiaoye Yang, Bing-Syin Ye, Jui-Chi Yen
The Recognition Ceremony Program for the Class of 2008 can be found here.https://www.repository.law.indiana.edu/composite/1079/thumbnail.jp
Class of 2009, Indiana University School of Law Graduate Legal Studies
No full textPictured:
Hasan Alaz, Yazeed Almohsen, Han-Chih Chan, Bo Chen, Jun Chen, Ko-Chang Chen, Le Chen, Meida Chen, Mei-chen Cheng, Huan Ting Chiu, Yung-Chen Chiu, Shih-Lan Chou, Shaoqi He, Lea Heimbeck, Byoung Jo Heo, Po Wan Ho, Chia-Yi Hsieh, Kai-Yu Hsu, Eve Huchon, Jungwon Hur, HyungHoon Jang, Woo-Hyouk Jeong, Bonakele Jora, Se Hee Jung, Nu Ri Jung, Minho Kang, Boakai N. Kannah, Wookbai Kim, Xianghui Kim, Xianghui Kong, Wen-Hsiang Kung, Chankoog Kwon, James Lalremruata, Chae Joon Lee, In Sang Lee, Yoon Jung Lee, Jiawei Li, Mengyang Li, Yongyuan Li, Chang Liu, Qian Liu, Jia Lu, Junthorn Meechuen, Sotaro Murai, Raheela Narchoor, Huong Nguyen, Andono Nugrahadi, Warittha Papangkorn, Junsun Park, Huaying Piao, Magdalena Poltorak, Gustavo Ribeiro, Yerkebulan Shirkinbay, Ruo-Ci Shu, Chun-Chang Su, Piyarudee Suebpetch, Monai Supanit, Chan Tang, Chayasorn Tanthawewongs, Pamela Tibihikirra-Kalyegira, Nareenad Tongbuaban, Max van der Klaauw, Zeng Wan, Shih-Chieh Wang, Fu-Jung Wang, Fu-Jung Wu, Ganlin Xia, Jong-Sam Yang, Xiaoye Yang, Bing-Syin Ye, Jui-Chi Yen
The Recognition Ceremony Program for the Class of 2008 can be found here.https://www.repository.law.indiana.edu/composite/1079/thumbnail.jp
Data from: Leaf litter decomposition in tropical freshwater swamp forests is slower in swamp than non-swamp conditions
No full textDecomposition is a key ecosystem function, and the rate of decomposition in forests affects their carbon storage potentials. Processes and factors determining leaf litter decomposition rates in dry-land and temperate forests are well understood, but these are generally poorly studied in tropical wetland forests, especially freshwater swamp forests (FSF). The home-field advantage (HFA) hypothesis predicts that soil microbes specialize in decomposing leaf litter produced by the tree species in their immediate vicinity. However, empirical support for the HFA is equivocal, and the HFA has never been tested in the highly heterogeneous and biodiverse ecosystems of tropical FSFs. We collected leaf litter from swamp and non-swamp tree species in a tropical FSF in Singapore and monitored the decomposition rates of these in swamp and non-swamp plots for a period of eight months. Leaf litter decomposed 3.7 times more slowly in swamp plots. Leaf litter from swamp tree species were significantly poorer in quality (higher C:N ratio) than those of non-swamp FSF tree species, but this had only a weak effect on decomposition rates. There was also only weak evidence for the HFA and only in non-swamp conditions. Our results show that while the leaf litter of tropical FSF swamp and non-swamp tree species differ significantly in chemical traits, litter decomposition rate is ultimately determined by local abiotic conditions, such as hydrology. Additionally, the high FSF tree diversity may prevent decomposer communities from specializing on any group of leaf litter types and thus limit the extent of HFA observed in such heterogeneous forests.</span
Arsenic trioxide inhibits Ewing's sarcoma cell invasiveness by targeting p38(MAPK) and c-Jun N-terminal kinase
No full textEwing's sarcoma is the second most frequent primary malignant bone tumor, mainly affecting children and young adults. The notorious metastatic capability of this tumor aggravates patient mortality and remains a problem to be overcome. We investigated the effect of arsenic trioxide (As2O3) on the metastasis capability of Ewing's sarcoma cells. We performed 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl-2H-tetrazolium bromide assays to choose appropriate concentrations of As2O3 for the experiments. Migration, invasion, and adhesion assays were performed to assess the effect of As2O3 on the metastasis of Ewing's sarcoma. Immunofluorescent staining was used to observe cytoskeleton reorganization in Ewing's sarcoma cells treated with As2O3. Changes in matrix metalloproteinase-9 expression and the mitogen-activated protein kinase (MAPK) pathway were investigated using western blot. Inhibitors of p38(MAPK) (sb202190) and c-Jun NH2-terminal kinase (JNK, sp600125) were used in invasion assays to determine the effect of p38(MAPK) and JNK. We found that As2O3 may markedly inhibit the migration and invasion capacity of Ewing's sarcoma cells with structural rearrangements of the actin cytoskeleton. The expressions of matrix metalloproteinase-9, phosphor-p38(MAPK), and phosphor-JNK were suppressed by As2O3 treatment in a dose-dependent manner. The inhibitors of p38(MAPK) (sb202190) and JNK (sp600125) enhanced the inhibition induced by As2O3, which was counteracted by anisomycin, an activating agent of p38(MAPK) and JNK. Taken together, our results demonstrate that As2O3 can inhibit the metastasis capability of RD-ES and A-673 cells and may have new therapeutic value for Ewing's sarcoma. Anti-Cancer Drugs 23:108-118 (C) 2011 Wolters Kluwer Health | Lippincott Williams & Wilkins.OncologyPharmacology & PharmacySCI(E)PubMed4ARTICLE1108-1182
[[alternative]]Using Digital Teaching Portfolios for Teacher Evaluation
No full text[[abstract]]The teacher evaluation has already been implemented for many years abroad, and a lot of domestic scholars are catching up on the research about the subject as well. Nevertheless, most of them did not point out the concrete methods in their studies.
The purpose of this research is: setting up a digital teaching portfolio system that can make the teacher evaluation in elhi schools. This research consults some methods of the National Board for Professional Teaching Standards (NBPTS) and the relative studies of some domestic scholars, and design a “appraisingly digital teaching portfolio system. The followings are the characteristics of this system. First, it contains clear appraising portfolio items. Second, it possesses exact criteria. Third, it provides an user-friendly interface. The participants of this research contained three domestic teachers in the field of linguistics, four in comprehensive fields, three mathematics teachers, and two experts in linguistic field. The researcher did the empirical study on the basis of the teachers’ and experts’ using condition. The teachers set up digital teaching portfolio according to the system items which integrated the aspects of teaching and learning. After completing the study, two experts in linguistic field were invited to evaluate the portfolio system according to the scales which integrated the aspects of teaching and learning. Finally, the researcher interviewed the teachers and experts separately to acquaint the using condition and gain suggestions about modifications.
The followings are the results and discovery of the research: first, the items of the portfolio system comprise teachers’ professional capability. Second, teachers consider it easy to set up the editorial page of the digital teaching portfolio. Third, the experts are generally satisfied with the scales of evaluation. However, they also point out that the scales need to be revised partly. Fourth, the experts are satisfied with the operation of the evaluator interface. Fifth, the digital teaching portfolio can evaluate teachers’ teaching capability effectively. Sixth, it takes much time to collect relative material. Even so, it does help teachers achieve self-understanding and modify teaching methods. Seventh, it needs clear directions while shooting teaching films. Eighth, further instructions and guides are needed while setting up the portfolio.
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