A long-lived triplet charge separated state (3CS state lifetime: 0.56 μs) was observed in a compact electron donor-acceptor dyad with electron donor phenothiazine (PTZ) and acceptor anthraquinone (AQ) directly connec...
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As the ultimate goal of steganalysis, secret message extraction is a bottleneck and difficulty that has long plagued the development of steganalysis technology. Existing pioneering work on secret message extraction fo...
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The security research on Windows has received little attention in the academic circle. Most of the new methods are usually designed for Linux system, and are difficult to transplant to Windows. Fuzzing for Windows pro...
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Code clones are code fragments that are similar in composition or semantics of code statements, which can significantly improve software development efficiency and reduce costs by improving the quality of reusable cod...
Code clones are code fragments that are similar in composition or semantics of code statements, which can significantly improve software development efficiency and reduce costs by improving the quality of reusable code. However, existing code clone detection methods ignore the source code structure information and sequence information seriously. In this paper, we launched our research on the harder-to-break Type IV code clone detection, and propose a new method, namely Aug_Clone, to complete code clone detection task. Firstly, we utilize our published code semantic enhancement model to obtain the code semantic vector. Secondly, we perform code clone detection by calculating the similarity between these semantic vectors. At last, we evaluate our method on a large public data set, and experimental results show improvement over the state-of-the-art benchmarks, which demonstrates the effectiveness and efficiency of our method.
Moirépattern in twisted multilayers(tMLs)induces many emergent phenomena by subtle variation of atomic registry to modulate quasiparticles and their interactions,such as superconductivity,moiréexcitons,and m...
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Moirépattern in twisted multilayers(tMLs)induces many emergent phenomena by subtle variation of atomic registry to modulate quasiparticles and their interactions,such as superconductivity,moiréexcitons,and moiré*** periodic superlattice potential introduced by moirépattern also underlies patterned interlayer coupling at the interface of *** this arising patterned interfacial coupling is much weaker than in-plane atomic interactions,it is crucial in moirésystems,as captured by the renormalized interlayer phonons in twisted bilayer transitional metal ***,we determine the quantitative relationship between the lattice dynamics of intralayer out-of-plane optical(ZO)phonons and patterned interfacial coupling in multilayer graphene moirésuperlattices(MLG-MS)by the proposed perturbation model,which is previously challenging for MLGs due to their out-of-phase displacements of adjacent atoms in one atomic *** unveil that patterned interfacial coupling introduces profound modulations on Davydov components of nonfolded ZO phonon that are localized within the AB-stacked constituents,while the coupling results in layer-extended vibrations with symmetry of moirépattern for moiréZO *** work brings further degrees of freedom to engineer moiréphysics according to the modulations imprinted on the phonon frequency and wavefunction.
As an emerging photovoltaic technology, organic solar cells (OSCs) have attracted extensive attention in recent years due to the advantages of light weight, flexibility, semi-transparency, and potential for roll-to-ro...
As an emerging photovoltaic technology, organic solar cells (OSCs) have attracted extensive attention in recent years due to the advantages of light weight, flexibility, semi-transparency, and potential for roll-to-roll device fabrication. Currently, state-of-the-art OSCs have achieved over 20% power conversion efficiency (PCE), indicating their bright application prospects. Thus, stability becomes a critical issue for the commercialization of OSCs. In practical environments, light and heat are the main factors affecting the stability of OSCs. In this review, we first summarize the key degradation routes induced by thermal and light stresses. Then, recent strategies to enhance thermo- and photostability of OSCs are reviewed, focusing on material design and morphology control. Finally, some suggestions are provided for the development of next-generation OSCs with high efficiency and excellent stability.
In recent years, driven by huge engineering demands, industrial Cyber-Physical System (iCPS) has developed rapidly. As an important energy conversion device in iCPS, stable operation of permanent magnet synchronous mo...
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With the development and popularization of Internet technology, network security has become the focus of attention. Vulnerabilities and back doors are regarded as two of the main reasons of network security problems. ...
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