Fluoro-substitution solvents have achieved great success in electrolyte engineering for high-energy lithium metal batteries, which, however, is beset by low solvating power, thermal and chemical instability, possible battery swelling. Instead, we herein introduce cyanogen as the electron-withdrawing group to enhance oxidative stability of ether solvents, which oxygen form chelating structure with Li + not notably undermining power. Cyano-group strongly bonds transition metals (TMs) NCM811...

Currently, the preparation of high-performance electrode materials is urgently needed for supercapacitors. As a new kind organic porous material, covalent frameworks (COFs) with an ordered pore structure, high specific surface area and designability, have shown great potential application value as However, their in supercapacitors limited by poor conductivity COFs. Here, we situ grew highly crystalline triazine-based framework DHTA-COF on modified θ-Al2O3 substrate to obtain composites...

The desperate pursuit of high gravimetric specific energy leads to the ignorance volumetric density that is one basic requirements for batteries. Due capacity, less-prone formation dendrite, and low reduction potential Mg metal, rechargeable batteries are considered with innately density. Nevertheless, substantial elevation in compromised by extremely excessive metal anode. Herein, proof-of-concept anode-free

Along with the development of cloud computing, cloud-based RFID is receiving more and attentions researchers engineers. However, there no research in which computing applied to authentication schemes. Most current works lay emphasis on functionalities, lacking considerations about security privacy. Classical schemes fail meet special privacy requirements RFID. The basic postulates traditional backend-sever-based authentication, i.e. secure backend channel entirely trustworthy database, are...

With the development of Internet Things(IoT), more and smart devices are connected into Internet. The security privacy issues IoT have received increasingly academic industrial attentions. Vulnerability detection is key technology to protect from zero-day attacks. However, traditional methods tools vulnerability cannot be directly used in analyzing firmware. This paper firstly reviews related works on firmware, previous researches classified four types i.e. static analysis, symbolic...

Cyber-physical systems (CPSs) are next-generation intelligent that integrate computing, communication, and control. Malicious attacks on CPSs can lead to both property damage casualties. Therefore, it is worth surveying CPS security by reviewing analyzing the latest high-quality related works. In this paper, we provide an overview of studies from last five years select 142 works A- or B-level conferences/journals recommended China Computer Federation (CCF). First, review main contents...

This paper presents a novel methodological framework, called the Actor-Simulator, that incorporates calibration of digital twins into model-based reinforcement learning for more effective control stochastic systems with complex nonlinear dynamics. Traditional often relies on restrictive structural assumptions (such as linear state transitions) and fails to account parameter uncertainty in model. These issues become particularly critical industries such biopharmaceutical manufacturing, where...

Web application fuzzing faces significant challenges in achieving comprehensive test interface (attack surface) coverage, primarily due to the complexity of user interactions and dynamic website architectures. While web crawlers can automatically access extract critical information—including form fields request parameters—which are essential for generating effective cases, current crawler technologies exhibit three primary limitations: (i) insufficient capabilities analyzing page...

Cross-site scripting attacks represent one of the major security threats facing web applications, with Stored XSS becoming predominant form. Compared to reflected XSS, stored attack payloads exhibit temporal and spatial asynchrony between injection execution, rendering traditional browserside defenses based on request–response differential analysis ineffective. This paper presents XSShield, first detection framework that leverages a Large Language Model understand JavaScript semantics defend...

The salen-based Salen-TAPT-COF was prepared and used as a modified separator for boosting the performance of Li–S batteries.

POMs/DTQ-COF composites were prepared by post-synthesis strategy and applied to the improvement of lithium–sulfur battery separator. The electrochemical performance was effectively improved.

A plasma synthetic jet (PSJ) actuator (PSJA) with a Laval-shaped exit is investigated using numerical method alongside PSJA straight-shaped for comparison. The accuracy of the first verified by comparing simulation results experimental schlieren images and pressure measurement values. performance then in quiescent air. show that when dimensionless energy ε > 5.06, maximum velocity becomes supersonic higher than exit. opposite true ≤ 5.06. front PSJ much lower velocity, no obvious...

Experimental and numerical studies are carried out to validate the potential of opposing Plasma Synthetic Jet (PSJ) for drag reduction a hemisphere. Firstly, flow field changes PSJ analyzed by comparing experimental schlieren images simulation results in supersonic free stream Mach number 3. As is kind unsteady pulsed jet, shock standoff distance increases initially then decreases under control PSJ, which corresponds change strength PSJ. Accordingly, amount hemisphere decreases. It found...

Fe-based sulfides are a promising type of anode material for sodium-ion batteries (SIBs) due to their high theoretical capacities and affordability. However, these materials often suffer from issues such as capacity deterioration poor conductivity during practical application. To address challenges, an N-doped Fe7S8 with N, S co-doped porous carbon framework (PPF-800) was synthesized using template-assisted method. When serving SIBs, it delivers robust ultrafast sodium storage performance,...