Optical properties of ultrathin metal oxide and metal films : effect of free electrons, quantum confinement and localized surface plasmon resonance by Li, Xiao Dong

“…The comparison study of the free electrons between the undoped ZnO and AZO shows that free electrons could greatly suppress the excitonic absorption near the band edge and result in an expansion of band gap due to the free electrons effect. …”
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Terahertz conductivity of topological surface states in Bi1.5Sb0.5Te1.8Se1.2 by Tang, Chi Sin, Xia, Bin, Zou, Xingquan, Chen, Shi, Ou, Hong-Wei, Wang, Lan, Rusydi, A., Zhu, Jian-Xin, Chia, Elbert E. M.

“…Moreover, an impurity band is present about 30 meV below the Fermi level, and the surface and bulk carrier densities agree with those obtained from transport data. …”
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Multiband and wideband 90° polarization rotators by Omar, Ahmed Abdelmottaleb, Shen, Zhongxiang, Ho, Sheng Yu

“…Inspired by techniques utilized in the design of frequency-selective surfaces (FSSs), multi-band and wideband 90° polarization rotators are proposed in this letter. …”
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Reconfigurable antennas for GSM and WLAN applications by IHD Mavidu Nipunath Iddagoda

“…A prototype antenna was fabricated with commercially available diodes used for switching between the two frequency bands. DC biasing lines were drawn from the top surfaces of the nested antenna. …”
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Improved 3-D frequency-selective structures and their applications by Ahmed Abdelmottaleb Abdelfattah Attia Omar

“…By employing the 3-D concept, a multiband high-order bandstop frequency-selective surface, a wideband absorber with a thin structure, and an absorptive frequency-selective transmission structure with wide absorption bands are accomplished. …”
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Study of multidirectional forging and annealing on copper by Lim, Zi Xin.

“…The use of macroforming technology to produce microproducts has problem such as poor mechanical properties and rough surface due to relatively large grains and fewer grain boundaries. …”
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Electronic structure of topological quantum materials probed by angle-resolved photoelectron spectroscopy by Schröter, N

“…Our ARPES studies of intrinsically hole doped Sr₃SnO, Ca₃PbO, and Sr₃PbO find good agreement with bulk band structure calculations, but cannot probe the predicted bulk and surface Dirac cones in the unoccupied states. …”

Automotive radiators: An experimental analysis of hybrid nanocoolant by Hizanorhuda, Zurghiba, Kumaran, Kadirgama, Muhamad, Mat Noor, Rosli, Abu Bakar, Semin, S.

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Performance study of digital communication over high frequency channel by Andrews, Jinto

“…Because of the multi-path effect and turbulence in the ionosphere, it results in very bad bit error rates for the modulation schemes used. Different techniques are introduced to improve the bit error rate performance. …”
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TDSF: Two-phase tamper detection in semi-fragile watermarking using two-level integer wavelet transform by Amrullah, Agit, Ernawan, Ferda, Anis Farihan, Mat Raffei, Liew, Siau-Chuin

“…The proposed scheme performed two-level integer wavelets transform to obtain the LL, LH, HL, and HH sub-bands. The authentication bits of LL are embedded into the LH and HL sub-bands to generate a watermarked image. …”
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Atomistic simulation of deformation under extreme loading conditions by Sharuz Farooque Rahmatullah

“…Shock is applied to the metal by applying an impact with a surface at a specified velocity. The strain rates were varied by changing the impact velocity of the sample. …”
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Compact Substrate Integrated Waveguide Cubical Dielectric Resonator Antenna for fifth-generation applications by Nasir, Nida, Jamaluddin, Mohd. Haizal, Shahadan, Nor Hidayu, Abbas, Syed Muzahir, Ahmad, Hamza

“…A comprehensive analysis of a wideband Cubical Dielectric Resonator Antenna is presented, specifically designed for 5G-NR wireless communication applications, focusing on the N257, and N258 frequency bands. This antenna exhibits symmetrical radiation patterns, a wider bandwidth, improved efficiency, and substantial gain characteristics. …”

Electronic structures of twisted two-dimensional materials studied by angle-resolved photoemission spectroscopy by Pei, D

“…Chiral semimetals the PtGa family (PtGa, PtAl,PdGa) are expected to host topologically non-trivial electronic structure, such as the multi-fold band crossings with large Chern number at high symmetry points connected by long Fermi-arc surface states. …”

Market outlook of VLCCs in the next 5 years by Cheah, Peifang.

“…The report shall focus on analyzing the demand and supply factors and subsequently draw a conclusion based on their effect on the freight rates. This can be achieved by segmenting the market into 5 bands based on historical Time Charter Equivalent (TCE) namely very weak, weak, steady, strong and very strong condition and a forecast of the strength of the freight market will be derived (ie the band the market will fall in). …”
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Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems by Muhammad Faizal Razali

“…Following that we introduce multiple access interference to simulate and study the result of the bit error rate (BER) when multiple users and different number of frequency bands are included. …”
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Trust-aware resource allocation in a cognitive radio system by Qin, Tao, Leung, Cyril, Chen, Yiqiang, Miao, Chun Yan

“…A reliable strategy for the detection of unused spectrum bands is essential in a practical implementation of CR systems. …”
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Water-resonator-based metasurface : an ultrabroadband and near-unity absorption by Song, Qinghua, Zhang, Wu, Wu, Pin Chieh, Zhu, Weiming, Shen, Zhong Xiang, Chong, Peter Han Joo, Liang, Qing Xuan, Yang, Zhen Chuan, Hao, Yi Long, Cai, Hong, Zhou, Hai Feng, Gu, Yuandong, Lo, Guo-Qiang, Tsai, Din Ping, Bourouina, Tarik, Leprince-Wang, Yamin, Liu, Ai-Qun

“…However, they usually suffer from narrow bandwidth and only work on planar surfaces. Here, for the first time, this study demonstrates a soft water-resonator-based metasurface, which functions as an active absorbing material across an ultrabroadband range of Ku, K, and Ka bands. …”
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Ideal type-II Weyl points in topological circuits by Li, Rujiang, Lv, Bo, Tao, Huibin, Shi, Jinhui, Chong, Yidong, Zhang, Baile, Chen, Hongsheng

“…By stacking two-dimensional (2D) layers of inductor-capacitor (LC) resonator dimers with the broken parity inversion symmetry (P), we achieve a strongly tilted band structure with two group velocities in the same direction, and topological surface states in an incomplete bandgap. …”
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Signal processing for cooperative cognitive radio networks by Rabiee, Ramtin

“…In recent decades, cognitive radio has been introduced as a practical solution to solve the frequency scarcity problem by setting up a secondary network besides the primary one through a cognitive radio network (CRN) to increase the utilization rate of licensed frequency bands. There exist many parameters to achieve a reliable and practical CRN and it is necessary to conduct extensive signal processing studies to optimize them. …”
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Observation of an acoustic octupole topological insulator by Xue, Haoran, Ge, Yong, Sun, Hong-Xiang, Wang, Qiang, Jia, Ding, Guan, Yi-Jun, Yuan, Shou-Qi, Chong, Yidong, Zhang, Baile

“…Berry phase associated with energy bands in crystals can lead to quantised observables like quantised dipole polarizations in one-dimensional topological insulators. …”
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