Co-located face-to-face social interaction using multiple smartphones by Tee, Yu Chao

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Comparison of text messaging data collection vs face-to-face interviews for public health surveys : a cluster randomized crossover study of care-seeking for childhood pneumonia and... by van Velthoven, Michelle Helena, Wang, Wei, Wu, Qiong, Li, Ye, Scherpbier, Robert W, Du, Xiaozhen, Chen, Li, Zhang, Yanfeng, Car, Josip, Rudan, Igor

“…Background: To compare text messaging and face-to-face interviews to conduct a survey on childhood diarrhoea and pneumonia. …”
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Study of face detection and tracking by Khew, Zong Jie.

“…During the last decades, there had been numerous proposition and research on methods for face detection and face tracking. …”
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Comparing the effectiveness of online and face-to-face teaching and learning methods in an engineering course during and after the COVID-19 pandemic by Diana Che Lat, Doris Asmani Mat Yusof, Nurul Ainain Mohd Salim, Roslizayati Razali

“…Overall, there was a drastic decrease in assessment grades for semesters that experienced a change in the teaching and learning process from online to face-to-face.…”
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An experimental setup for physiological evaluation of face mask by Joseph, Frank Gerard

“…The COVID-19 pandemic has increased public awareness on the importance of using face masks to control the spread of diseases. This had resulted in increased public interest in face mask construction and effectiveness to prevent the spread of airborne pathogens. …”
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Tunnel face stability in non-homogeneous soil by Khezri, Nima

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The blue green algal bloom in the nearshore waters of Cukai bay facing the South China Sea by Shamsudin, Lokman

“…The Cukai bay, facing the South China Sea, has inflows from the Cukai river estuaries and other numerous small river tributaries. …”
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A 1-bit 16×16 reconfigurable intelligent surfaces array for C-band by Zhang, Yucheng

“…Reconfigurable Intelligent Surfaces (RIS) are the recent essential technologies to achieve the goal of manipulating electromagnetic waves for transmissions and reflections of signals. …”
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Single plasmonic structure enhanced dual-band room temperature infrared photodetection by Tong, Jinchao, Luo, Yu, Zhang, Dawei, Zhang, Dao Hua, Tobing, Landobasa Yosef Mario

Subjects: “…Dual-band Photodetection…”
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Bond order resolved 3d 5/2 and valence band chemical shifts of Ag surfaces and nanoclusters by Sun, Changqing, Qin, Wei, Wang, Yan, Huang, Yongli, Zhou, Zhaofeng, Yang, Chao

“…Incorporating the tight-binding theory and the bond order–length–strength (BOLS) correlation into the X-ray photoelectron spectra of Ag(111) and (100) surfaces and the Auger electron spectra of Ag nanoparticles deposited on Al2O3 and CeO2 substrates has led to quantitative information of the 3d5/2 and the valence binding energies of an isolated Ag atom and their shifts upon bulk, defect, surface, and nanocrystal formation. …”
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Experimental demonstration of a band-notched line-defect waveguide in a surface-wave photonic crystal by Xu, Hongyi, Zhang, Youming, Zhang, Baile, Gao, Zhen, Gao, Fei

“…We propose and experimentally demonstrate a band-notched line-defect waveguide in a surface-wave photonic crystal, which consists of a straight line-defect waveguide and side-coupled defect cavities. …”
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Nontrivial quantum oscillation geometric phase shift in a trivial band by Datta, Biswajit, Adak, Pratap Chandra, Shi, Li-kun, Watanabe, Kenji, Taniguchi, Takashi, Song, Justin Chien Wen, Deshmukh, Mandar M.

“…We find this arises due to an unusual filling enforced constraint between the quadratic band and linear band Fermi surfaces. Our work indicates how additional bands can be exploited to tease out the effect of often subtle quantum mechanical geometric phases.…”
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Investigation of flow over rough surfaces by Gan, Kee Poh

“…Superhydrophobic surfaces structure can be created by sanding the surface with sandpaper. …”
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Band-gap engineering for multi-colored perovskite solar cell windows by Tay, Yu Xian

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Design and optimization of Frequency Selective Surfaces (FSS) by Luo, Xingfang

“…The analysis method for Frequency Selective Surfaces (FSS), the spectral-domain Method of Moments (MoM) is improved to be applicable to normal incidence. …”
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Evaporation and crystallisation of saline droplet with surfactant on smooth surfaces by Wong, Dennis Kin Wai

“…In the case of 0.8 mM CTAB with varying SDS concentration, an unexpected result was observed where 1.6 mM SDS had the highest initial contact angle, followed by 0.32 mM SDS. …”
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Droplet impingement on a heated surface by Chia, Patrick Chee Leong

“…Droplet impingement behaviours affects the surface performance for multiple applications such as heat transfer, boiling and anti-icing and condensation. …”
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Broadband surface-wave transformation cloak by Xu, Su, Xu, Hongyi, Gao, Hanhong, Jiang, Yuyu, Yu, Faxin, Joannopoulos, John D., Soljačić, Marin, Chen, Hongsheng, Sun, Handong, Zhang, Baile

“…A partial realization has been achieved by exploiting topological electromagnetic surface states, but this approach is limited to narrow-band light transmission and subject to phase disturbances in the presence of disorder. …”
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Plasmonic semiconductor nanogroove array enhanced broad spectral band millimetre and terahertz wave detection by Tong, Jinchao, Suo, Fei, Zhang, Tianning, Huang, Zhiming, Chu, Junhao, Zhang, Dao Hua

“…In addition, such a single device can perform broad spectral band detection from 0.9 mm (0.330 THz) to 9.4 mm (0.032 THz). …”
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Fabrication of hydrophobic surfaces using micro-electro discharge machining by Ching, Zai Ting

“…From the results gathered, the choice of electrode and work piece material had a more pronounced effect on the roughness and therefore contact angle of machined surface.…”
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