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Article
Covalent post-synthetic modification of MOFs as a fluorescent sensor for the efficient detection of the biomarker of cystinuria
Cystinuria is a genetic disorder, and in severe cases, it might lead to kidney failure. As an important biomarker for cystinuria, the level of arginine (Arg) in urine is a vital indicator for cystinuria screen...
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Article
A novel electrochemical sensing platform based on double-active-center polyimide covalent organic frameworks for sensitive analysis of levofloxacin
The development of a simple and sensitive electrochemical sensing platform for levofloxacin (LVF) analysis is of great significance to human health. In this work, a covalent organic framework (TP-COF) was in s...
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Article
A layered triazinyl-COF linked by −NH− linkage and resulting N-doped microporous carbons: preparation, characterization and application for supercapacitance
A layered triazinyl-COF(COF-TP) linked by − NH − bond was synthesized by condensation of 2,4,6 − trichloro − 1,3,5 − triazine and p − phenylenediamine. The BET specific surface area of COF-TP was 43.65 m2·g− 1 an...
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Article
Analytical Approximation for Capacity in Massive MIMO Systems
In most existing research on massive multiple-input multiple-output (MIMO) systems, theoretical analysis relies on the assumption that the number of antennas at the base station is infinite. Under this assumpt...
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Article
Multi-pair massive MIMO amplify-and-forward relaying system with low-resolution ADCs: performance analysis and power control
In this paper, we focus on a general multi-pair massive MIMO amplify-and-forward (AF) relaying system where the relay antennas employ low-resolution analog-to-digital converters (ADCs) to reduce the hardware c...
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Article
Modeling the Channel Time Variation Inside Moving Vehicle
In this letter, we propose a new stochastic model for the time variation of wireless channel inside the moving vehicle. In the classical Jakes’ model, the receiver is assumed to move at a certain speed relativ...
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Article
Parameter Based Channel Estimation for OFDM Systems Over Time-Varying Channels
This paper investigates the parameter-based (PB) channel estimation for orthogonal frequency division multiplexing over time-varying channels. The time-varying channel impulse response (CIR) can be represented...