摘要：
Pyroptosis has garnered significant interest due to its involvement in cancer progression and potential to trigger inflammation and host immune responses. While many efforts have been made to induce pyroptosis using chemotherapeutic agents, these approaches often result in off-target effects, drug resistance, and unwanted systemic toxicity. Furthermore, the non-specific activation of pyroptosis could lead to pro-inflammatory death, creating a microenvironment that potentially heightens the chances of cancer proliferation and metastasis. To solve these limitations, photon-evoking pyroptosis engineering has emerged as a promising approach due to its precise spatiotemporal control, non-invasiveness, and reduced side effects. In this context, this work provides an overview of recent advancements in the molecular mechanisms of pyroptosis, and explore various effective strategies associated with different mode of photon-evoked pyroptosis based on the pyroptosis pathway. Thereafter, we put forth our perspectives on the challenges and prospects of utilizing photon-evoked pyroptosis in anticancer therapy.
期刊：
Journal of Environmental Management,2024年351:119729 ISSN：0301-4797
通讯作者：
Yang, S
作者机构：
[Peng, Kaida; Yang, Shao; Yang, Hongyan; Xu, Min; Cheng, Hu; Liu, Yi; Yang, S; Liu, Pan; Liu, Xiaofeng] Cent China Normal Univ, Sch Life Sci, Wuhan 430079, Peoples R China.
通讯机构：
[Yang, S ] C;Cent China Normal Univ, Sch Life Sci, Wuhan 430079, Peoples R China.
关键词：
Anthropogenic activities;Bloom-forming cyanobacterial genera;Climate change;Driving factors;Sedimentary ancient DNA;Thresholds
摘要：
Cyanobacterial blooms pose a global environmental concern, with various genera contributing to their formation. The harmfulness of cyanobacterial blooms varies depending on the specific genus, yet the factors triggering their formation remain incompletely understood. This study conducted qPCR of sediment DNA in Lake Erhai to reconstruct the historical succession of three common bloom-forming cyanobacterial genera (i.e., Microcystis, Dolichospermum, and Aphanizomenon). The driving factors and their corresponding thresholds were identified, and human activities related to driving factors were evaluated. The results revealed two successions in the past century. The first succession transitioned from Aphanizomenon (1902-1978) to Microcystis and Dolichospermum (1978-1999), driven by TN:TP and TP. The second succession shifted from Microcystis and Dolichospermum (1978-1999) to Microcystis (1999-2010), driven by TP, TN:TP, and temperature. The thresholds of TP and TN:TP for the Microcystis bloom were 0.023mg/L and 17, respectively. TN:TP was significantly influenced by domestic pollution and crop farming in both successions, while TP was significantly impacted by domestic pollution in the first succession and by pollution from crop and dairy farming in the second succession. These results shed light on the underlying mechanism responsible for the blooms of various cyanobacterial genera and could serve as a valuable reference for effectively preventing and controlling nutrient input in the watershed.
摘要：
In this paper, we suggest an empirical likelihood -based test for the autoregressive coefficient of an integer -valued AR(1) model, i.e., INAR(1). We derive the limit distributions of the resulting test statistic under both null and alternative hypotheses. It turns out that regardless of whether the INAR process is stable or unstable, the statistic is always chi -squared distributed asymptotically under the null hypothesis, and as a result, it can offer unified inferences for the autoregressive coefficient. The performance of its finite sample is also demonstrated using simulations and an empirical example.
摘要：
Interictal epileptiform discharges (IED) as large intermittent electrophysiological events are associated with various severe brain disorders. Automated IED detection has long been a challenging task, and mainstream methods largely focus on singling out IEDs from backgrounds from the perspective of waveform, leaving normal sharp transients/artifacts with similar waveforms almost unattended. An open issue still remains to accurately detect IED events that directly reflect the abnormalities in brain electrophysiological activities, minimizing the interference from irrelevant sharp transients with similar waveforms only. This study then proposes a dual-view learning framework (namely V2IED) to detect IED events from multi-channel EEG via aggregating features from the two phases: (1) Morphological Feature Learning: directly treating the EEG as a sequence with multiple channels, a 1D-CNN (Convolutional Neural Network) is applied to explicitly learning the deep morphological features; and (2) Spatial Feature Learning: viewing the EEG as a 3D tensor embedding channel topology, a CNN captures the spatial features at each sampling point followed by an LSTM (Long Short-Term Memories) to learn the evolution of these features. Experimental results from a public EEG dataset against the state-of-the-art counterparts indicate that: (1) compared with the existing optimal models, V2IED achieves a larger area under the receiver operating characteristic (ROC) curve in detecting IEDs from normal sharp transients with a 5.25% improvement in accuracy; (2) the introduction of spatial features improves performance by 2.4% in accuracy; and (3) V2IED also performs excellently in distinguishing IEDs from background signals especially benign variants.
摘要：
A graph G has a
$${\mathcal {P}}_{\geqslant k}$$
-factor if G has a spanning subgraph H such that every component of H is a path of order at least k. A graph G is
$${\mathcal {P}}_{\geqslant k}$$
-factor deleted if
$$G-e$$
has a
$${\mathcal {P}}_{\geqslant k}$$
-factor for each edge e of G. In this paper, we give two necessary and sufficient conditions defining a
$${\mathcal {P}}_{\geqslant 2}$$
-factor deleted graph and a
$${\mathcal {P}}_{\geqslant 3}$$
-factor deleted graph, respectively. Based on the result of
$${\mathcal {P}}_{\geqslant 2}$$
-factor deleted graphs, we establish respectively a lower bound on the size and a lower bound on the spectral radius to ensure whether or not a graph is
$${\mathcal {P}}_{\geqslant 2}$$
-factor deleted. Furthermore, by constructing extremal graphs, we show that all the above bounds are best possible.
期刊：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2024年72(8):3884-3893 ISSN：0021-8561
通讯作者：
Lin, Hong-Yan;Wang, DW
作者机构：
[Ye, Bao-Qing; Yang, Guang-Fu; Cai, Zhuo-Mei; Chen, Li-Jun; Wang, Da-Wei; Dong, Jin; Huang, Guang-Yi; Lin, Hong-Yan; Lin, HY] Cent China Normal Univ, Natl Key Lab Green Pesticide, Wuhan 430079, Peoples R China.;[Ye, Bao-Qing; Yang, Guang-Fu; Cai, Zhuo-Mei; Chen, Li-Jun; Wang, Da-Wei; Dong, Jin; Huang, Guang-Yi; Lin, Hong-Yan; Lin, HY] Cent China Normal Univ, Coll Chem, Int Joint Res Ctr Intelligent Biosensor Technol &, Wuhan 430079, Peoples R China.
通讯机构：
[Wang, DW ; Lin, HY] C;Cent China Normal Univ, Natl Key Lab Green Pesticide, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Coll Chem, Int Joint Res Ctr Intelligent Biosensor Technol &, Wuhan 430079, Peoples R China.
摘要：
4-Hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) is one of the most valuable herbicide targets due to its unique biological functions. In search of HPPD inhibitors with promising biological performance, we designed and synthesized a series of novel tetrazolamide-benzimidazol-2-ones using a structure-based drug design strategy. Among the synthesized compounds, 1-(2-chlorobenzyl)-3-methyl-N-(1-methyl-1H-tetrazol-5-yl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carboxamide, <bold>25</bold>, IC50 = 10 nM, was identified to be the most outstanding HPPD inhibitor, which showed more than 36-fold increased Arabidopsis thaliana HPPD (AtHPPD) inhibition potency than mesotrione (IC50 = 363 nM). Our AtHPPD-<bold>25</bold> complex indicated that one nitrogen atom on the tetrazole ring and the oxygen atom on the amide group formed a classical bidentate chelation interaction with the metal ion, the benzimidazol-2-one ring created a tight pi-pi stacking interaction with Phe381 and Phe424, and some hydrophobic interactions were also found between the ortho-Cl-benzyl group and surrounding residues. Compound <bold>32</bold> showed more than 80% inhibition against all four tested weeds at 150 g ai/ha by the postemergence application. Our results indicated that the tetrazolamide-benzimidazol-2-one scaffold may be a new lead structure for herbicide discovery.
通讯机构：
[Pan, FF ] C;[Dong, XY ] H;Henan Polytech Univ, Coll Chem & Chem Engn, Jiaozuo 454000, Peoples R China.;Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Peoples R China.;Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.
摘要：
Materials exhibiting X-ray-induced photochromism have consistently piqued the interest of researchers. Exploring the photochromic properties of such materials is valuable for understanding the structural changes and electron transfer processes that occur under high energy radiation, such as X-ray irradiation. Here, a crystalline silver(I) nanocluster synthesized from tert-butylacetylene silver was found to have the ability to exhibit color and photoluminescence changes upon exposure to X-ray radiation. The responsive behavior was observed across a wide temperature range of 100-300 K, with the ability to respond particularly well to soft X-rays (lambda > 1 & Aring;) and exhibit light responsiveness to hard X-rays (lambda < 1 & Aring;). By combining experimental findings including X-ray diffraction, X-ray photoelectron spectroscopy, electron spin resonance, etc. with theoretical calculations, we have proposed that X-ray irradiation induces electron transfer from chloride (Cl-) located in the center of the silver(I) nanocluster to the surrounding Ag-14 in the skeleton. This represents the first documented example in which electron transfer induced by X-ray excitation has been observed, accompanied by a photochromism process, in silver nanoclusters. This study contributes to our understanding of X-ray-induced photochromism and the electron transfer process in silver cluster compounds. It also provides valuable insights and potential design strategies for applications such as photochromism, photoluminescence color change, and photoenergy conversion.
摘要：
Linear complementary dual (LCD) codes can provide an optimum linear coding solution for the two-user binary adder channel. LCD codes also can be used to against side-channel attacks and fault non-invasive attacks. Let dLCD(n,k) denote the maximum value of d for which a binary [n,k,d] LCD code exists. In \cite{BS21}, Bouyuklieva conjectured that dLCD(n+1,k)=dLCD(n,k) or dLCD(n,k)+1 for any lenth n and dimension k >= 2. In this paper, we first prove Bouyuklieva's conjecture \cite{BS21} by constructing a binary [n,k,d-1] LCD codes from a binary [n+1,k,d] LCDo,e code, when d >= 3 and k >= 2. Then we provide a distance lower bound for binary LCD codes by expanded codes, and use this bound and some methods such as puncturing, shortening, expanding and extension, we construct some new binary LCD codes. Finally, we improve some previously known values of d(LCD)(n,k) of lengths 38 <= n <= 40 and dimensions 9 <= k <= 15. We also obtain some values of d(LCD)(n,k) with 41 <= n <= 50 and 6 <= k <= n-6.
期刊：
Journal of Mathematical Analysis and Applications,2024年530(1):127636 ISSN：0022-247X
通讯作者：
Duan, R
作者机构：
[Duan, Ran; Chang, Shengchuang] Cent China Normal Univ, Sch Math & Stat, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.
通讯机构：
[Duan, R ] C;Cent China Normal Univ, Sch Math & Stat, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.
关键词：
Navier-Stokes-quantum equations;Rayleigh-Taylor instability;Hadamard sense
摘要：
Consider the linear and nonlinear Rayleigh-Taylor instability of the three-dimensional incompressible viscous Navier-Stokes-Quantum equations. For linearized problem, we determine the critical number.cprecisely. Then, we construct a linear growth solution by a modified variational method for k <.k(c). In addition, we show that.cis infinite for a special steady state <(rho)over bar>, which implies that quantum potential inhibit the instability instead of cutting it off. Based on this unstable linear solution and the priori estimates of the smooth solution to the perturbed problem, we establish the nonlinear instability of the density and the velocities in the sense of Hadamard. Compared with the related study on Navier-Stokes-Korteweg equations (Zhang (2022) [41]), we do not ask the capillarity coefficient to be small. (c) 2023 Elsevier Inc. All rights reserved.
期刊：
JOURNAL OF NATURAL PRODUCTS,2024年 ISSN：0163-3864
通讯作者：
Ruan, HL
作者机构：
[Ruan, Han-Li; Xie, Zuo-Ye; Chang, Jin-Ling; Peng, Xiao-Gang; Ruan, HL; Gan, Yu-Tian; Zhou, Yin-Hui] Huazhong Univ Sci & Technol, Tongji Med Coll, Sch Pharm, Hubei Key Lab Nat Med Chem & Resource Evaluat, Wuhan 430030, Peoples R China.;[Gan, Yu-Tian] Xiangyang Hosp Tradit Chinese Med, Xiangyang 441000, Peoples R China.;[Meng, Xianggao] Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.;[Li, Shu-Ming] Philipps Univ Marburg, Fachbereich Pharm, Inst Pharmazeut Biol & Biotechnol, D-35037 Marburg, Germany.
通讯机构：
[Ruan, HL ] H;Huazhong Univ Sci & Technol, Tongji Med Coll, Sch Pharm, Hubei Key Lab Nat Med Chem & Resource Evaluat, Wuhan 430030, Peoples R China.
摘要：
Ten new (1-10) and nine known (11-19) austocystins, along with four known anthraquinones (20-23), were isolated from the culture of Aspergillus ustus NRRL 5856 by bioactivity-guided fractionation. The structures of the new compounds were elucidated by spectroscopic data analysis, X-ray crystallographic study, the modified Mosher's method, [Rh(2)(OCOCF3)(4)]-induced ECD spectral analysis, and comparison of the experimental ECD spectra with those of the similar analogues. Compounds 1-8 represent the first examples of austocystins with a C-4' oxygenated substitution. The absolute configuration of 1″-hydroxy austocystin D (11) was determined by single-crystal X-ray diffraction and consideration of its biosynthetic origin. Compounds 5, 9, and 11 exhibited significant inhibitory effects against the proliferation of ConA-induced T cells with IC(50) values of 1.1, 1.0, and 0.93 μM, respectively. Furthermore, these compounds suppressed the expression of IL-6 in a dose-dependent manner. Compounds 10-12 and 14 showed pronounced cytotoxicities against MCF-7 with IC(50) values of 3.9, 1.3, 0.46, and 2.3 μM, respectively.
摘要：
Let
$$A\in M_2({\mathbb {Z}})$$
be an expanding integer matrix and
$$D=\{d_1={\textbf{0}},d_2,d_3\}\subset {\mathbb {Z}}^2$$
. It follows from Hutchinson (Indiana Univ Math J 30:713–747, 1981) that the generalized Sierpinski self-affine set
$${\textbf{T}}(A,D)$$
is the unique compact set determined by the pair (A,D) satisfing the set-valued equation
$$A{\textbf{T}}(A,D)=\bigcup _{i=1}^3({\textbf{T}}(A,D)+d_i)$$
. In this paper, we show that Fuglede’s conjecture holds on
$${\textbf{T}}(A,D)$$
, which states that
$${\textbf{T}}(A,D)$$
is a spectral set if and only if
$${\textbf{T}}(A,D)$$
is a translational tile. For the classical Sierpinski self-affine set
$${\textbf{T}}(A,D_{c})$$
with
$$D_{\text {c}}=\{(0,0)^t,(1,0)^t, (0,1)^t\}$$
, a finer characterization of tiling set is given. As an application, we find that the classical Sierpinski self-affine tile
$${\textbf{T}}(A,D_{\text {c}})$$
is suitable for Kolountzakis’ conjecture on product domain. This enriches the results that are now known.
摘要：
As one of the most widely used disinfectants, active chlorine is synthesized predominantly through electrolysis of saturated sodium chloride solutions, an industrial process known as the chlor-alkali process, with high energy consumption. Seawater is an abundant source of chloride and thus an ideal alternative electrolyte. However, substantial challenges are to be addressed, notably the competing oxygen evolution reaction and progressive anode passivation due to the presence of rich cations in seawater. Here, we show durable and efficient active chlorine electrosynthesis directly from natural seawater with intrinsic turnover frequency and mass activity two orders of magnitude higher than the state of the art. The essential chemistry is an Fe-doped Ti4O7 anode that strengthens the electrophilicity of lattice oxygen to allow for site-selective chloride activation at remarkably lowered kinetic overpotentials relative to the oxygen evolution reaction, while also impeding the precipitation of alkaline earth metal cations on the Ti4O7 surface. A seawater splitting device with an integrated commercial silicon photovoltaic cell delivers an impressive active chlorine production rate of 3.15 mg min-1 for effective simulated ballast water disinfection. This work suggests the possibility to substantially improve the sustainability of the chlor-alkali process without compromising the synthetic performance for the mass production of disinfectants. This work shows a delicate titanium suboxide-based anode design for electrolysis of seawater, delivering selective production of active chlorine for on-site disinfection.
作者机构：
[Yang, Xi-Yan] Yangtze Univ, Sch Phys & Optoelect Engn, Jingzhou 434023, Peoples R China.;[Lai, Xiao-Yu; Tan, Wei-Wei; Yang, Xi-Yan] Hubei Univ Educ, Res Ctr Astron, Wuhan 430205, Peoples R China.;[Tan, Wei-Wei] Cent China Normal Univ, Key Lab Quark & Lepton Phys, Minist Educ, Wuhan 430079, Peoples R China.;[Xu, Ren-Xin] Peking Univ, Sch Phys, Beijing 100871, Peoples R China.;[Xu, Ren-Xin] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China.
通讯机构：
[Lai, XY ] H;Hubei Univ Educ, Res Ctr Astron, Wuhan 430205, Peoples R China.
关键词：
dense matter;(stars:) pulsars: general;(stars:) gamma-ray burst: general
摘要：
Strangeon stars, which are proposed to describe the nature of pulsar-like compact stars, have passed various observational tests. The maximum mass of a non-rotating strangeon star could be high, which implies that the remnants of binary strangeon star mergers could even be long-lived massive strangeon stars. We study rigidly rotating strangeon stars in the slowly rotating approximation, using the Lennard-Jones model for the equation of state. Rotation can significantly increase the maximum mass of strangeon stars with unchanged baryon numbers, enlarging the mass-range of long-lived strangeon stars. During spin-down after merger, the decrease of radius of the remnant will lead to the release of gravitational energy. Taking into account the efficiency of converting the gravitational energy luminosity to the observed X-ray luminosity, we find that the gravitational energy could provide an alternative energy source for the plateau emission of X-ray afterglow. The fitting results of X-ray plateau emission of some short gamma-ray bursts suggest that the magnetic dipole field strength of the remnants can be much smaller than that of expected when the plateau emission is powered only by spin-down luminosity of magnetars.
作者机构：
[Liu, Sannyuya; Yuan, Xin; Yue, Jieyu; Li, Zhen; Li, Qing; Liu, SNYY; Hu, Tianhui; Chen, Sijing; Sun, Jianwen] Cent China Normal Univ, Natl Engn Res Ctr Educ Big Data, Wuhan 430079, Peoples R China.;[Liu, Sannyuya; Liu, SNYY] Cent China Normal Univ, Natl Engn Res Ctr E Elearning, Wuhan 430079, Peoples R China.
通讯机构：
[Liu, SNYY ; Chen, SJ] C;Cent China Normal Univ, Natl Engn Res Ctr Educ Big Data, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Natl Engn Res Ctr E Elearning, Wuhan 430079, Peoples R China.
摘要：
The purpose of this study was to investigate the frontier, science, and public engagement of educational science research. This paper conducted a systematic literature review of 101 educational science research articles published in Nature and Science in 1982-2021 based on the Web of Science database and analyzed the current status of research in terms of basic publication characteristics, research themes, and research processes. Five research topics were recognized, namely, education policy evaluation and reform, learning mechanisms and learning interventions, science education, educational technology, and education equity. Content of each topic had a distinctive emphasis. Findings revealed that most studies were dominated by empirical research, involving causal relationships between various educational phenomena, diverse range of research subjects, rigorous scientific randomized experiments, and quantitative analysis. We encourage more research on educational science in the future from four feasible directions, namely, developing active learning approaches to promoting effective learning, extending the research subjects and objectives of science education, conducting long-term, large-scale and practice-oriented research, and introducing new research methods into educational research.
作者机构：
[Wan, Qing-Yu; Li, Min; Shu, Wen-Ming; Lin, Ri-Lan; Yu, Wei-Chu; Peng, Yan-Qing] Yangtze Univ, Coll Chem & Environm Engn, Hubei Engn Res Ctr Clean Prod & Pollut Control Oil, Jingzhou 434023, Peoples R China.;[Wu, An-Xin] Cent China Normal Univ, Int Joint Res Ctr Intelligent Biosensor Technol &, Natl Key Lab Green Pesticide, Wuhan 430079, Peoples R China.
通讯机构：
[Shu, WM; Yu, WC ] Y;Yangtze Univ, Coll Chem & Environm Engn, Hubei Engn Res Ctr Clean Prod & Pollut Control Oil, Jingzhou 434023, Peoples R China.
摘要：
An iodine-mediated cyclization has been developed to 4-aryl-NH-1,2,3-triazoles, with p-toluenesulfonyl hydrazide and sulfamic acid used as nitrogen sources. Sulfamic acid plays a crucial role in this reaction by both acting as a substrate and providing an acidic environment. This reaction offers a metal- and azide-free strategy to access NH-1,2,3-triazoles.
作者机构：
[Yi, Cong; Yi, C; Pu, Shi] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.;[Wu, Xiang -Yu; Qin, Guang-You] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.;[Wu, Xiang -Yu; Qin, Guang-You] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.;[Yang, Di-Lun] Acad Sinica, Inst Phys, Taipei 11529, Taiwan.;[Gao, Jian-Hua] Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Envi, Weihai 264209, Shandong, Peoples R China.
通讯机构：
[Yi, C ] U;Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.
摘要：
We investigate the azimuthal angle dependent local hydrodynamic helicity polarization of Λ hyperons, defined as the projection of the spin polarization vector along the directions of particle momenta, at BNL Relativistic Heavy Ion Collider beam energy scan energies by utilizing the relativistic ( 3+1 )D CLVisc hydrodynamics framework with SMASH initial conditions. As opposed to local spin polarization at high energy collisions, our hydrodynamic simulations demonstrate that the azimuthal angle dependent helicity polarization induced by the kinetic vorticity dominates over other contributions at intermediate and low collision energies. Our findings provide an opportunity to probe the fine structure of local kinetic vorticity as a function of azimuthal angle at intermediate and low collision energies by mapping our predictions to the future measurements in experiments.
作者机构：
[Wu, Yanwen; Cao, Shuangshuang; Ma, Yanmei; Ge, Di] Cent China Normal Univ, Sch Phys Sci & Technol, Wuhan 430079, Peoples R China.;[Cheng, Yuhang] Shaanxi GSXZ Technol Co Ltd, Xian 710018, Peoples R China.;[Wu, Yanwen] Cent China Normal Univ, Natl Digital Learning Engn Technol Res Ctr, Wuhan 430079, Peoples R China.
通讯机构：
[Wu, YW ] C;Cent China Normal Univ, Sch Phys Sci & Technol, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Natl Digital Learning Engn Technol Res Ctr, Wuhan 430079, Peoples R China.
关键词：
Anomaly detection;Multivariate time-series;Spatiotemporal;Abnormal information expression;Graph contrastive learning
摘要：
The detection of anomalies in high-dimensional time-series has always played a crucial role in the domain of system security. Recently, with rapid advancements in transformer model and graph neural network (GNN) technologies, spatiotemporal modeling approaches for anomaly detection tasks have been greatly improved. However, most methods focus on optimizing upstream time-series prediction tasks by leveraging joint spatiotemporal features. Through experiments, we found that this modeling approach not only risks the loss of some original anomaly information during data preprocessing, but also focuses on optimizing the performance of the upstream prediction task and does not directly enhance the performance of the downstream detection task. We propose a spatiotemporal anomaly detection model that incorporates an improved attention mechanism in the process of temporal modeling. We adopt a heterogeneous graph contrastive learning approach in spatio modeling to compensate for the representation of anomalous behavioral information, thereby guiding the model through thorough training. Through validation on two widely used real-world datasets, we demonstrate that our model outperforms baseline methods. We also explore the impact of multivariate time-series prediction tasks on the detection task, and visualize the reasons behind the benefits gained by our model.
摘要：
Ammonia (NH3) is an essential chemical and a promising fuel, but its industrially produced process is carbon-intensive and highly energy-consuming. Developing a green and sustainable NH3 synthesis route is extremely urgent. Electrochemical ammonia synthesis (EAS) powered by renewable electricity energy under ambient conditions is fascinating, while exploring the efficient electrocatalysts and suitable nitrogen source is critical. Due to the unique characteristics of adjustable porosity and component, large specific surface area and diverse structure, metal-organic frameworks (MOFs) and their various derivatives have captured immense interest in EAS. Herein, the advance in EAS via electrocatalytic reduction reactions (ERRs) from various nitrogen source under ambient conditions over MOF-based electrocatalysts is timely summarized, aiming to offer a deep insight to the structure-activity relationship of MOF-based electrocatalysts for EAS. Current challenges and future prospects for EAS are proposed at the end of this review as well.
期刊：
Nonlinear Analysis: Real World Applications,2024年77:104046 ISSN：1468-1218
通讯作者：
Wang, YT
作者机构：
[Ma, Xuan] Wuhan Text Univ, Res Ctr Nonlinear Sci, Sch Math & Phys Sci, Wuhan 430200, Peoples R China.;[Wang, Yating] Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Peoples R China.;[Wang, Yating] Cent China Normal Univ, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.
通讯机构：
[Wang, YT ] C;Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.
摘要：
The dynamics of a rarefied gas in a finite channel with the same temperatures and opposite velocities is a fundamental problem in kinetic theory. The relative motion of the planar boundaries can induce a non-equilibrium state which is referred to as the Couette flow. In this paper, we demonstrate that the unsteady Couette flow for the Boltzmann equation in 3D finite channel time asymptotically converges to the 1D steady state constructed in Duan et al. (2022), we also prove the exponential time decay rate as a byproduct. The validity of the analysis is established for all hard potentials.
通讯机构：
[Xue, Q ] C;[Xie, GH ] X;Xiamen Univ, Inst Flexible Elect Future Technol, Xiamen 361005, Peoples R China.;Wuhan Univ, Sauvage Ctr Mol Sci, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China.;Cent China Normal Univ, Dept Phys Sci & Technol, Wuhan 430079, Peoples R China.
摘要：
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a widely used conductive polymer in organic light-emitting devices. However, its strong acidity and fluorescence quenching effect seriously affect the overall device performance. We report a cost-effective method to address the above concerns by diluting PEDOT:PSS with deionized water, which effectively reduced the film thickness and the acidity. Therefore, the fluorescence quenching occurring at the interface was alleviated. Using the modified PEDOT:PSS as the hole injection layer, the external quantum efficiency of the device could be effectively improved by a factor of 81%, reaching a considerably higher value of 23.5%, compared with the device consisting of the original PEDOT:PSS solution used as received. A cost-effective method to address the issues of strong acidity and exciton quenching of PEDOT:PSS was developed by diluting it with deionized water. The solution-processed organic LEDs achieved almost doubled efficiencies with the modified PEDOT:PSS.
