Investigating the EM performance of building materials for mid-band 5G in urban built environment: an exploratory study by Ng, Sean Jake Peng

“…This comprehensive study encompasses various factors, including the choice of aggregate types (FAC and fine sand), different levels of Fe2O3 inclusions (2 wt% and 4 wt%), and channel frequencies within the 3300 to 3800 MHz frequency band (divided into five 100 MHz channels). Prior to the statistical analysis, |S21| parameters were measured using an S-band waveguide experiment setup. …”
Get full text

End-fire surface wave antenna with metasurface coating by Wang, Ping, Shen, Zhongxiang

“…This paper describes a wideband and low-profile end-fire surface wave antenna embedded into a large metallic platform. …”
Get full text
Get full text

A multi-beam circularly polarised Fabry-Perot resonator antenna array using SIW for X-Band applications by Khajeh Mohammad Lou, Reza, Aribi, Tohid, Sedghi, Tohid, Virdee, Bal Singh

“…Enhanced characteristics of the antenna array are realised by inserting an electromagnetic andgap (EBG) structure between the radiating elements and a superstrate constituted from two complementary frequency selective surfaces (FSS) that forms a Fabry-Perot resonator (FPR). …”
Get full text

Performance evaluations of fast frequency-hopped spread-spectrum communication systems with partial-band noise jamming and multitone jamming by Teh, Kah Chan.

“…Two types of commonly encountered jamming waveforms, namely, the partial-band noise jamming (PBNJ)and the multitone jamming (MTJ), are studied in de-tail. …”
Get full text

Bit-error rate simulation for frequency-hopped multiple-access systems over fading channels by Le, Thi Ngoc Anh.

“…In this report, bit-error-rate (BER) performance of a fast frequency-hopped binary frequency-shift-keying (FFH/BFSK) system using diversity-combining over multiple-access interference (MAI), partial-band jamming (PBJ), additive white Gaussian noise (AWGN) and fading channels is presented. …”
Get full text

Plastic Instability in Co-Cr-Ni-Mo alloy wires drawn with different drawing practices by GVK, Sai Srikanth, Tan, Ming Jen, Liu, Zhenyun

“…The wires were subjected to different plastic deformations, by varying the amount of cold work (CW) reduction, and the strain hardening exponent (γ) and strain rate sensitivity (m) were determined from the logarithmic plots of the true stress and strain curves. …”
Get full text

Doodles and Blobs on a Ruled Page: Convex Quasi-envelops of Traversing Flows on Surfaces by Katz, Gabriel

“…We consider 2-moderate immersions of closed curves (“doodles”) and compact surfaces (“blobs”) in A, up to cobordisms that also are 2-moderate immersions in $$A \times [0, 1]$$ A × [ 0 , 1 ] of surfaces and solids. …”
Get full text

In-band RCS reduction and isolation enhancement of a 24 GHz radar antenna using metamaterial absorber for sensing and automotive radar applications by Sharma, A., Dwari, S., Kanaujia, B.K., Gangwar, D., Kumar, S., Singh, Satya P., Lay-Ekuakille, A.

“…An array of MA is placed in between and around the transmit/receive antennas to suppress surface current and reduce in-band RCS of the radar sensor. …”
Get full text

In-situ infrared spectroscopy studies of surface reactions over irradiated photocatalysts by Gong, Dangguo

“…However, deviations from the power law are attributed to partial trapping at surface Ti4+ sites. Under inert gas, and depending on the humidity level, photo-adsorption of water is promoted by surface-trapped holes and repelled (or substantially weakened) by surface-trapped electrons. …”
Get full text

Interpolation of quaternary III-V alloy parameters with surface bowing estimations by Mei, Ting

“…We present the weighted-sum expression of quaternary parameter estimations via balancing surface bowing estimation errors. Expressions have been derived for both quaternary alloys AxByCzD and AxB1-xCyD1-y and applied to the band gaps of AlGaInAs, AlGaInP, InAsPSb, GaInAsP, and GaInAsSb. …”
Get full text
Get full text

Experimental observation of optical Weyl points and Fermi arc-like surface states by Chong, Yi Dong, Chen, Kevin P., Rechtsman, Mikael C., Noh, Jiho, Huang, Sheng, Leykam, Daniel

“…Weyl fermions are hypothetical two-component massless relativistic particles in three-dimensional (3D) space, proposed by Hermann Weyl in 1929. Their band-crossing points, called ‘Weyl points’, carry a topological charge and are therefore highly robust. …”
Get full text
Get full text

Multi-IRS empowered terahertz wireless communication over generalized fading by Premanand, Rithwik, Vishwakarma, Narendra, Singh, Ranjan, Madhukumar, A. S.

“…Intelligent reflecting surfaces (IRS) have emerged as a promising technology for addressing the inherent challenges associated with terahertz (THz) bands, thereby enhancing system performance and offering immense potential for future wireless systems. …”
Get full text

Tunable surface-plasmon-polariton filter constructed by corrugated metallic line and high permittivity material by Luo, Jiang, He, Jin, Apriyana, Alit, Feng, Guangyin, Huang, Qijun, Zhang, Yue Ping

“…This paper presents the development of a novel surface plasmon polariton band-stop filter with tunable operating frequency. …”
Get full text
Get full text

Quantum oscillations probe the Fermi surface topology of the nodal-line semimetal CaAgAs by Coldea, A, Kwan, Y, Reiss, P

“…<p>These data accompany the manuscript entitled:</p> <p>"Quantum oscillations probe the Fermi surface topology of the nodal-line semimetal CaAgAs" arXiv:2001.02434 by Y. …”

Quantum oscillations probe the Fermi surface topology of the nodal-line semimetal CaAgAs by Kwan, Y, Reiss, P, Han, Y, Bristow, M, Prabhakaran, D, Graf, D, McCollam, A, Ashok Parameswaran, S, Coldea, A

“…Nodal semimetals are a unique platform to explore topological signatures of the unusual band structure that can manifest by accumulating a nontrivial phase in quantum oscillations. …”

Surface-Enhanced Raman Scattering (SERS) of Nitrothiophenol isomers chemisorbed on TiO2 by Teguh, Jefri S., Liu, Fang, Xing, Bengang, Yeow, Edwin Kok Lee

“…Surface-enhanced Raman scattering (SERS) spectroscopy and density functional theory (DFT) calculations were used to investigate the nature of the charge-transfer (CT) process between nitrothiophenol (NTP) isomers and the n-type semiconductor, TiO2. …”
Get full text
Get full text

Elucidating surface and bulk emission in 3D hybrid organic – inorganic lead bromide perovskites by Chi, Xiao, Leng, Kai, Wu, Bo, Shi, Dong, Choy, Yufong, Chen, Zhongxin, Chen, Zhihui, Yu, Xiaojiang, Yang, Ping, Xu, Qing-Hua, Sum, Tze Chien, Rusydi, Andrivo, Loh, Kian Ping

“…This study provides the unambiguous identification of a phase‐modified surface region with a larger band gap than the bulk and which dominates the excitonic emission in HOIP crystals.…”
Get full text

Quantum scale biomimicry of low dimensional growth : an unusual complex amorphous precursor route to TiO2 band confinement by shape adaptive biopolymer-like flexibility for energy... by Choi, Dahyun, Sonkaria, Sanjiv, Fox, Stephen John, Poudel, Shivraj, Kim, Sung-yong, Kang, Suhee, Kim, Seheon, Verma, Chandra, Ahn, Sung Hoon, Lee, Caroline Sunyong, Khare, Varsha

“…Further, we show the change in optoelectronic properties under quantum confinement is intrinsically related to size that affects their optical absorption band energy range in DSSC.…”
Get full text

Surface composition dependent ligand effect in tuning the activity of nickel–copper bimetallic electrocatalysts toward hydrogen evolution in alkaline by Wei, Chao, Sun, Yuanmiao, Scherer, Günther G., Fisher, Adrian C., Sherburne, Matthew, Ager, Joel W., Xu, Zhichuan Jason

“…By studying the alkaline HER at a series of NiCu bimetallic surfaces, where the electronic structure is modulated by ligand effect, we demonstrate that alkaline HER activity can be correlated with either the calculated or the experimental-measured d band center (an indicator of hydrogen binding energy) via a volcano-type relationship. …”
Get full text

Synergy of Nb doping and surface alloy enhanced on water–alkali electrocatalytic hydrogen generation performance in Ti‐based MXene by Du, Cheng‐Feng, Sun, Xiaoli, Yu, Hong, Liang, Qinghua, Dinh, Khang Ngoc, Zheng, Yun, Luo, Yubo, Wang, Zhiguo, Yan, Qingyu

“…Presented are the theoretical calculation and experimental studies of a Ti3C2Tx MXene‐based nanohybrid with simultaneous Nb doping and surface transition metal alloy modification. Guided by the density functional theory calculation, the Nb doping can move up the Fermi energy level to the conduction band, thus enhancing the electronic conductivity. …”
Get full text
Get full text