Digital inkjet printing on high-class wool textiles is in line with the trend, but challenge such as reducing impact of scales print quality still worth attention. In this study, a novel environment-friendly method was applied to pretreatment without any generation hazardous substances. H2O2 and papain were adopted pretreat fabric before process. Both wettability zeta potential treated improved obviously. Moreover, Fourier-transform infrared spectroscopy spectra X-ray photoelectron proved...

Cooperative jamming (CJ) can effectively improve the security of wireless communication system in physical layer, but such improvement is conditional on effective CJ cancellation at authorized receiver. In this letter, by considering point-to-point system, a architecture provided, and testbed designed implemented to verify its feasibility. lab environment under line-of-sight (LOS) propagation, experimental results demonstrate that proposed provide about 51 dB capability, while noise floor...

Nonlinear self-interference (SI) cancellation is crucial for eliminating the impact of transmitter-side nonlinearity on comprehensive SI performance in full-duplex radios. However, propagation environment with rich reflection paths signals, number delayed taps required time-domain nonlinear booms exponentially increase multi-path number, leading to unacceptable complexity. In this paper, a novel frequency-domain canceller based successive interference (SIC) technique proposed orthogonal...

In order to realize robust communication in complicated interference electromagnetic environments, an intelligent transmitter design is proposed this paper, where auxiliary wideband receiver senses the distribution information a wide bandwidth range decide optimal working frequency. One of key issues suppressing self-interference high-power signals co-platform sensing receiver. Due multipath effect channel, perfect time synchronization not achievable, which reduces cancelation performance...

Spatially randomly distributed unmanned aerial vehicles (UAVs) cooperate with each other to form a virtual array and implement collaborative beamforming, which can improve communication distance. However, due limitations in location algorithm airflow disturbances, the of UAV is difficult estimate accurately, leads degradation beamforming performance. Hence, this letter, by considering UAVs random adopts relative position-based formation, where error one may accumulate subsequent UAVs,...

In full-duplex radios, delay alignment errors result in random mismatch between the self-interference (SI) signal and reconstructed cancellation signal, leading to performance degradation of SI cancellation. this letter, a variable fractional (VFD) FIR filter with more precise is exploited suppress digital domain. The closed-form expressions VFD coefficients are reformulated by minimizing residual power. Based on obtained capability, influence order then characterized. Simulations show that...

Known interference (KI) is commonly used in many scenarios, where the original data known to receiver advance. Unfortunately, due impacts of hardware imperfections and propagation environment, received KI may suffer frequency offset, phase noise, multi-path with different time delays channel gains. However, perfect time-frequency synchronization estimation are hard implement practice, making it challenging cancel completely. In this paper, comprehensive effects impairments on cancellation...

The artificial noise (AN) shielded frequency-hopping (FH) architecture can effectively resist wiretapping and electromagnetic interference, but its wide hopping bandwidth will raise a non-negligible in-phase quadrature (IQ) imbalance at transceiver oscillators, yielding significant signal distortions during IQ mixing. Considering this, first, raised by imbalances are modelled in this study, their characteristics mathematically investigated as well. Next, the to distortion-plus-noise ratio...

Cooperative jamming (CJ) can reduce the receiving performance of eavesdroppers and will be reconstructed canceled at licensed receiver to ensure reliable communication. However, due hardware impairments limited accuracy frequency synchronization algorithms, a offset exists between CJ transmitter receiver, yielding imperfect cancellation receiver. In this letter, assume channel state information eavesdropper (CSIE) is perfect, joint transceiver optimization algorithm for with mismatch...

Plantamajoside (PMS) has shown potential in mitigating cell damage caused by high glucose (HG) levels. Despite this, the precise therapeutic effects of PMS on type 2 diabetes mellitus (T2DM) and underlying regulatory mechanisms require further exploration. To investigate T2DM mice elucidate its action through vivo vitro experiments. An model MIN6 cells was established using HG palmitic acid (PA). PMS's protective effect assessed. Next, transcriptomics employed to examine how treatment...

Ordered ZnFe 2 O 4 nanotube arrays with the average outer diameter of 100 nm were prepared in porous anodic aluminum oxide template using an improved sol-gel approach. The morphology was studied by transmission electron and field emission scanning microscope. X-ray diffraction result shows that nanotubes polycrystalline structure. magnetic properties also studied. results show sample typical superparamagnetism at room temperature obvious ferromagnetism below blocking temperature.

It is known that the keyhole or pinhole effect can severely degrade performance of multiple-input-multiple-output (MIMO) communication systems. In this paper, outage probability and error orthogonal space-time block codes with <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">m</i> transmit xmlns:xlink="http://www.w3.org/1999/xlink">n</i> receive antennas over fading channels are analyzed. Closed-form symbol/bit rate expressions derived...

Considering a broadband co-frequency and co-time full duplex (CCFD) transceiver, which transmits receives at the same time frequency resources, previous studies propose many self-interference cancellation algorithms in radio (RF) domain, but lack their performance analysis. Therefore, we make an attempt to analyze optimal RF domain of CCFD by adopting general multi-tap structure. In detail, transceiver is derived using parameters canceller. By analysis simulation, related with signal...

In physical layer security, imperfect time synchronization results in random mismatch between the received cooperative jamming (CJ) and reconstructed CJ, leading to performance degradation of CJ cancellation at authorized receiver. this letter, with is analyzed evaluated by ratio (JCR). Then, assuming that timing error uniformly distributed within accuracy, expectation cumulative distribution function (CDF) JCR are provided. Experimental confirm theoretical analysis causes dramatic...

In this letter, we propose an eigen domain interference rejection combining (E-IRC) algorithm to suppress the narrowband (NBI). The proposed E-IRC explores difference between time autocorrelation matrices of NBI and desired signal implements IRC in domain. Compared with traditional IRC, which rejects spatial domain, exploits characteristics received both thus yields better performance. Simulation results are presented demonstrate advantage algorithm.

Considering the radio frequency (RF) self-interference cancellation of full duplex transceiver, which can transmit and receive simultaneously at same band. The current studies mainly focus on feasibility verification, most are realized by manual adjustment parameters, lack theoretical analysis interference capability. To solve this problem, an adaptive least mean square (ALMS) algorithm for RF stage is presented in paper. Besides, convergence steady state performances ALMS proved analyzed,...

In virtual multiple-input-multiple-output (V-MIMO) systems, employing a user-pairing algorithm can significantly improve system capacity and spectral efficiency using multiuser diversity. The optimal pairing achieve performance, but it is not feasible to implement in practice due its huge complexity. To solve the problem, an efficient suboptimal with lower complexity proposed, which maximizes throughput by selecting users one one. Furthermore, good balance between user fairness, novel...

Ambient backscatter (AB) communication enables the devices to modulate and transmit data by reflecting surrounding digital video broadcasting (DVB) signals, has emerged as a promising solution connect low-power small-sized in Internet of Things (IoT). Unfortunately, AB receiver may suffer from strong direct-link interference (DLI) transmitted ambient DVB station, making it difficult decode backscattered signal (BS) directly. In this paper, tackle issue, we propose DLI cancellation method for...