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In order to convey bionic image semantics of the intelligent projection TV efficiently and accurately, and improve the matching of users' perceptual cognitive needs with the bionic image of intelligent projection TV. An image coupling bionic design method was proposed. Firstly, the intelligent projection TV target image was obtained by KJ, Semantic difference method (SD) and K-means clustering method. Secondly, the primary, secondary and general target images were distinguished by anallytic hierarchy process(AHP), and the bionic prototype was selected according to the coupling of the primary target images. Thirdly, by means of morphological analysis and AHP, the decline structure of multi-feature coupled images was established and the judgment matrix was constructed. The contribution of coupled image of biological features was obtained. The main features were integrated into the intelligent projection TV styling to form a visual scheme. Finally, the reliability of image coupling styling method was verified by Delphi and fuzzy comprehensive evaluation method. The research process provides a reference for related product innovation design.

In this letter, a method of designing quasi‐elliptic bandpass filter with ultrabroad reflectionless bandwidth and high selectivity is proposed. It is implemented on the basis of a quasi‐elliptic absorptive lowpass filter (ALPF) prototype that features both a low‐reflection response over all normalized frequencies and two controllable transmission zeros near the passband. A distributed‐element absorptive bandpass filter (ABPF) scheme using coupled‐line units is derived from this quasi‐elliptic ALPF prototype. With this distributed‐element ABPF scheme, both ultrabroad reflectionless bandwidth and compact size can be realized. Equations for closed‐form design are derived. A microstrip ABPF operating at 2.0 GHz (i.e., f0) is designed for validation. The measured roll‐off rates of the upper and lower transition bands are 116.44 and 157.41 dBc/GHz, respectively. The return loss is better than 10 dB from direct current to 6.25f0. The size of the overall circuit is 0.12λg2. [ABSTRACT FROM AUTHOR]

This article presents a generative model for the inverse design of dual-band filters based on a type of modified complementary split-ring resonator (CSRR). It consists of a series of convolutional neural networks that incorporate the conditional deep convolutional generative adversarial network (GAN) technique. The filters are designed by etching the modified CSRRs on the surface of substrate-integrated waveguides. This design allows us to achieve two passbands with a compact size. In this GAN-based generative model, the CSRRs are represented as two-dimensional matrices. Each matrix corresponds to a training sample of the designed filter, and its S-parameters are extracted through an HFSS simulation. Both the matrices and the S-parameters are fed into the model as the training datasets. Different CSRRs with various sizes are employed for a wider applicable frequency band. Normalized matrices and normalized S-parameters are utilized to simplify the complex generative model resulting from the variations in CSRR sizes. The effectiveness of the generative model is validated through four design examples of dual-band filters, with their center frequencies located within 5 to 18 GHz. The inference time for each design is approximately 18.5 min. The measurement results of the fabricated filters are in good agreement with the simulation ones. [ABSTRACT FROM AUTHOR]

A self‐equalized linear‐phase microstrip bandpass filter (BPF) utilizing negative group delay (NGD) parallel‐coupled three‐line (PCTL) units is presented in this letter. The NGD PCTL unit possesses an NGD valley in its frequency response of group delay (GD). By a combination of two or more NGD valleys, the sharp positive GD peaks at passband edges of a conventional coupled‐line BPF are counterbalanced, resulting in a linear phase response over the entire passband. A prototype of linear‐phase BPF in S‐band is designed by replacing two coupled‐line units in a three‐pole conventional BPF with the proposed NGD PCTL units. Measured passband GD fluctuation of the BPF utilizing NGD PCTL units is 0.5 ns while that of the BPF using conventional coupled‐line units is 1.7 ns, a considerable improvement of 70.5% is achieved with no increase in overall time delay. The out‐of‐band suppression is well retained, and the circuit size is 0.18 λg2. [ABSTRACT FROM AUTHOR]

The prevention and control of rice bacterial leaf blight (BLB) disease has not yet been achieved due to the lack of effective agrochemicals and available targets. Herein, we develop a series of novel bissulfones and a novel target with a unique mechanism to address this challenge. The developed bissulfones can control Xanthomonas oryzae pv. oryzae (Xoo), and 2-(bis(methylsulfonyl)methylene)-N-(4-chlorophenyl) hydrazine-1-carboxamide (B7) is more effective than the commercial drugs thiodiazole copper (TC) and bismerthiazol (BT). Pyruvate kinase (PYK) in Xoo has been identified for the first time as the target protein of our bissulfone B7. PYK modulates bacterial virulence via a CRP-like protein (Clp)/two-component system regulatory protein (regR) axis. The elucidation of this pathway facilitates the use of B7 to reduce PYK expression at the transcriptional level, block PYK activity at the protein level, and impair the interaction within the PYK-Clp-regR complex via competitive inhibition, thereby attenuating bacterial biology and pathogenicity. This study offers insights into the molecular and mechanistic aspects underlying anti-Xoo strategies that target PYK. We believe that these valuable discoveries will be used for bacterial disease control in the future. [ABSTRACT FROM AUTHOR]

In this letter, the design of a centrosymmetric absorptive bandpass filter (ABPF) with ultra‐wide reflectionless band at both input and output port and wide stopband is reported. It is based on a balanced‐circuit structure, consisting of a pair of 3‐dB couplers and two channels of conventional reflective bandpass filters (BPFs). The bandwidth of the 3‐dB couplers is maximized, which covers from C‐band up to beyond Ku‐band, to extend the reflectionless band of the ABPF. It is realized by introducing a cross‐fingered defected ground structure (DGS) into the classical coupled‐line coupler to strongly enhance the coupling effect while maintaining a compact size. To suppress the harmonics outside the passband, two C‐shaped DGSs are employed at the input and output ends of the coupled‐line‐based BPF which introduces extra transmission zeros in the stopband. A prototype of the proposed ABPF is fabricated and tested. Measured input/output return loss are better than 10 dB over 3.94–18.63 GHz, which is commonly viewed as the reflectionless band. Moreover, the upper stopband is extended up to 40 GHz with suppression higher than 23 dB. The presented ABPF features advantages in convenient integration, dual‐port ultra‐wide reflectionless band and broad stopband. [ABSTRACT FROM AUTHOR]

The polyethylene oxide (PEO) solid electrolyte is a promising candidate for all solid state lithium-ion batteries (ASSLIBs), but its low ionic conductivity and poor interfacial compatibility against lithium limit the rate and cycling performance of the cell. Herein, the novel and efficient TiO 2 @polydopamine (PDA) fillers have been synthesized by coating PDA onto the surface of the TiO 2 nanofibers, which are then incorporated into PEO matrices to form the composite electrolyte. The composite electrolyte displays a higher ionic conductivity of 4.36 × 10 -4 S cm -1 , a wider electrochemical window up to about 5 V and a higher t Li + of 0.190 at 55 °C compared to the PEO electrolyte. Additionally, the Li/composite electrolyte/Li batteries show a stable Li plating/stripping cycle performance, indicating good interfacial compatibility between the composite electrolyte and lithium. Thus, the LiFePO 4 /Li ASSLIBs display a fantastic rate performance and cycling stability, and deliver superior discharge specific capacities of 153.83 and 136.45 mA h g -1 at current densities of 0.5C and 2C, achieving good capacity retentions of 93.27% and 91.23% at 0.5C and 1C after 150 cycles, respectively. Therefore, the PEO-TiO 2 @PDA composite electrolyte is a potential solid electrolyte for ASSLIBs.

Tomato chlorosis virus (ToCV) has caused great harm to the production of tomato worldwide. To develop efficient anti-ToCV agents, some novel 4(3 H )-quinazolinone derivatives containing dithioacetal were designed and synthesized, and their anti-ToCV activities were evaluated by microscale thermophoresis (MST) using ToCV coat protein (ToCV-CP) as a new target. The results showed that some compounds had a strong binding capacity to ToCV-CP. In particular, compounds C5 and C22 have an excellent binding capacity to ToCV-CP, with binding constant values of 0.24 and 0.25 μM, respectively. Additionally, reduced ToCV-CP gene expression levels of 81.05 and 87.59% could be achieved when tomato was treated with compounds C5 and C22 , respectively, which were obviously higher than the levels after ningnanmycin (NNM) treatment (43.88%) and lead compound Xiangcaoliusuobingmi (XCLSBM) treatment (63.56%). Therefore, this work indicates that 4(3 H )-quinazolinone derivatives containing dithioacetal moiety can be used as novel anti-ToCV agents.