Instrumental Effects in 21 cm Cosmology: One-point Statistics and Power Spectrum with the HERA Interferometer by Kim, Honggeun

“…I have simulated these calibration errors by modeling realistic perturbed primary beams for HERA Phase II observations. The chromatic calibration errors are critical since they can cause foreground emission to contaminate the region of Fourier space expected to be dominated by cosmological signals. …”
Get full text

Polymeric composites for powder-based additive manufacturing : materials and applications by Yuan, Shangqin, Shen, Fei, Chua, Chee Kai, Zhou, Kun

“…As one of the most important categories in the additive manufacturing (AM) field, powder-based techniques, such as selective laser sintering, electron beam melting and selective laser melting, utilize laser or electronic beams to selectively fuse polymeric, metallic, ceramic or composite powders layer-by-layer into desired products according to their computer-aided design models. …”
Get full text

A novel two-degrees-of-freedom piezoelectric energy harvester by Wu, Hao, Tang, Lihua, Yang, Yaowen, Soh, Chee Kiong

“…The harvester comprises one main cantilever beam and an inner secondary cantilever beam, each of which is bonded with piezoelectric transducers. …”
Get full text
Get full text

Developing a novel radical source for cold, controlled reaction studies by Wu, LY

“…The magnetic focusing effect was also demonstrated on a beam of OH molecules using an imaging system.</p> <p>The control of the alignment of radicals in space was also explored in the studies of the adsorption of O2 on a Cu(111) surface using an alignment-controlled beam. …”

Performance Characterization of High-Density Electrospray Thrusters by Corrado, Matthew N., Wangari, Charity, Finch, Michael R., Parameswaran, Lalitha, Cook, Matthew, Holihan, Eric C., Mathews, Richard, Kedzierski, Jakub, Racz, Livia M., Smith, Melissa A., Lozano, Paulo C.

Get full text

Ultra-thin bulk silicon thinning of advanced microprocessors & graphics processors fabricated in Sub-20 nm technology by Teo, Wee Siang

“…In particular, initial fault isolation techniques exploit infrared laser beams to probe the circuitry through silicon thinned mechanically to 50 um. …”
Get full text

OAM-based reconfigurable doppler shifts enable PAPR reduction for multi-carrier doppler diversity by Zhao, Yufei, Ge, Yao, Yang, Zhaojie, Ju, Gaohua, Ma, Lu, Lu, Yilong, Guan, Yong Liang

“…In a recent study, we discovered that even when the transceivers are stationary, a specific spatial Doppler shift can be generated by rotating the wavefront structure of the OAM helical beams. Furthermore, arbitrary integer rotational OAM Doppler shifts can be realized flexibly by using the recently popular digital encoding metasurfaces. …”
Get full text

Tunable quantum cascade lasers for midinfrared spectroscopic sensing by Li, Jinghao

“…Based on this beam combined tunable QCL array, we develop a portable sensor that integrates the modules of drivers, optical sensing, and signal processing in a box. …”
Get full text

Exploiting dynamic bifurcation in elastic ribbons for mode skipping and selection by Huang, Weicheng, Yu, Tian, Vella, Dominic, Hsia, K. Jimmy, Liu, Mingchao

“…The planar beam model is also employed for the asymptotic analysis of dynamic snap-through behaviors. …”
Get full text

Impact resistance of reinforced concrete members by Low, Kun Sheng

“…In this paper, we shall compare the impact resistance of 5 types of concrete beam. These 5 types of concrete beam are: 1) Normal concrete; 2) Normal concrete with steel fibre reinforcement; 3) Lightweight concrete; 4) Lightweight concrete with steel fibre reinforcement; 5) Normal concrete with steel fibre reinforcement and engineered cementitious composite protective layer. …”
Get full text

Cold atoms laboratory in a hollow core fiber by Leong, Wui Seng

“…Cold $^{85}\text{Rb}$ atoms of temperature $\sim$\SI{6}{\micro\kelvin} are loaded into a Kagome type photonic crystal hollow-core fiber (HCF) through an optical trapping beam coupled into the HCF. I first demonstrate an inertia-sensitive Mach-Zehnder atom interferometer using two counter-propagating Raman beams. …”
Get full text

USRP-based wireless communication demonstrations for capacity improvement: from coding and waveform design perspectives by Liu, Yile

“…Orbital Angular Momentum (OAM), a recent technology that utilizes vortex beams, provides a new dimension in mobile communication by enabling high-speed data transmission through superimposing multiple vortex waves. …”
Get full text

100 THz optical switching with plasmonic metamaterial by Venkatram, Nalla, Stefano, Vezzol, João, Valente, Sun, Handong, Nikolay, Zheludev

“…Alloptical modulation is control of the phase or intensity of one light beam by another.1 Although modulation can be achieved using nonlinear optical materials, it can be also obtained using constructive or destructive interference of a coherent beam. …”
Get full text
Get full text
Get full text

Non-contact actuated snap-through buckling of a pre-buckled bistable hard-magnetic elastica by Zhang, Yingchao, Ma, Yinji, Yu, Jing, Gao, Huajian

“…We identify an optimal position for the single M−interface and direction for the uniform actuation field for pre-buckled beams with two-ends fixed, which can reduce the required actuation field for snapping to nearly half in comparison with the symmetric cases. …”
Get full text

Investigation of low coherence interferometry techniques for biomedical applications by Chow, Tzu Hao

“…A common-path LCI system was incorporated into an optical tweezers system. The light beams of LCI and optical tweezers are collinear, thereby ensuring a good axial accuracy. …”
Get full text

Engineering quantum control with optical transitions induced by twisted light fields by Zanon-Willette, Thomas, Impens, François, Arimondo, Ennio, Wilkowski, David, Taichenachev, Aleksei V., Yudin, Valeriy I.

“…A form of quantum control is proposed by applying twisted light, also known as optical vortex beams, to drive ultranarrow atomic transitions in neutral Ca, Mg, Yb, Sr, Hg, and Cd bosonic isotopes. …”
Get full text

A type of novel energy harvesting device by Deng, J

“…</p> <p>This has led to the development of a new mechanical system which consists of a central shim with four identical beams bonded by two blocks and magnetic buttons. …”

Dynamic fracture mechanics of FRP-concrete interface by Li, Gen

“…The model was applied in finite element analysis (FEA) of various dynamic tests with FRP-concrete interface bond, e.g. single-lap shear tests, three-point bending tests, FRP strengthened RC beams subjected to dynamic loading and an FRP strengthened RC wall under blast load. …”
Get full text

Hybrid free space optics/radio frequency communication for next generation wireless networks by Sharma, Shubha

“…Free space optical (FSO) communication is a point to point transmission using laser beams that supports high data rate (up to GBPS) for short range transmission up to few kilometers. …”
Get full text

Integration of LoRa IoT with cloud platform in stingless beehive remote monitoring system by Ahmad, Yasser Arul, Nurul Salshabila, Mustapa, Anis Hannani, Razaman, Muhammad Nasrin Aqil, Abdul Hamid, Noreha, Abdul Malik, Mohd Faizal, Jamlos

“…Stingless bee colonies require constant monitoring to ensure hive health and optimal honey production. …”
Get full text