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Game-theoretical Model for Dynamic Defense Resource Allocation in cyber-physical Power Systems Under Distributed Denial of Service Attacks

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Journal of Modern Power Systems and clean Energy 2024年第1期12卷 41-51页

作者： Bingjing Yan Pengchao Yao Tao yang Boyang Zhou Qiang yang the college of Electrical Engineering Zhejiang UniversityHangzhou 310027China Zhejiang Lab Hangzhou 311100China

Electric power grids are evolving into complex cyber-physical power systems(cPPSs)that integrate advanced information and communication technologies(icTs)but face increasing cyberspace threats and *** study considers cPPS cyberspace security under distributed denial of service(DDoS)attacks and proposes a nonzero-sum game-theoretical model with incomplete information for appropriate allocation of defense resources based on the availability of limited *** time delay is applied to quantify the expected utility as cPPSs have high time requirements and incur massive damage DDoS *** resource allocation strategies are adopted by attackers and defenders under the three cases of attack-free,failed attack,and successful attack,which lead to a corresponding consumption of resources.A multidimensional node value analysis is designed to introduce physical and cybersecurity *** experiments and numerical results demonstrate the effec.iveness of the proposed model for the appropriate allocation of defense resources in cPPSs under limited resource availability.

关键词： Game theory complex cyber-physical power system(cPPS) multidimensional evaluation distributed denial of service(DDoS)attack

Asymmetric alkenylation reac.ion of benzoxazinones with diarylethylenes catalyzed by B(c_(6)F_(5))_(3)/c.iral phosphoric acid

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c.inese chemical Letters 2024年第5期35卷 135-140页

作者： Zhen Liu Zhi-Yuan Ren chen yang Xiangyi Shao Li chen Xin Li State Key Laboratory of Elemento-Organic chemistry Frontiers Science Center for New Organic MatterCollege of ChemistryNankai UniversityTianjin 300071China Haihe Laboratory of Sustainable chemical Transformations Tianjin 300192China Zhenhai High School of Zhejiang Ningbo 315299China

catalytic enantioselec.ive alkenylation is an efficient method to construct c.iral alkene molecules,but the asymmetric alkenylation of simple alkenes catalyzed by metal-free catalysts remains an elusive ***,we reported an asymmetric alkenylation of benzoxazinones with diarylethylenes by utilizing a B(c_(6)F_(5))_(3)/c.iral phosphoric acid catalyst.A broad of benzoxazinones and diarylethylenes with electron-withdrawing and electron-donating groups were tolerated(up to 95%yield and 97.5:2.5 e.r.)in the methodology under mild reac.ion ***,the synthetic utility was confirmed by the scaled-up reac.ion and transformations of the *** mechanism was preliminarily explored by control reac.ions,nonlinear effect experiment and DFT calculations.

关键词： Asymmetric alkenylation Simple alkenes Benzoxazinones B(c_(6)F_(5))_(3)/c.iral phosphoric acid Theoretical calculations

combined Treatment with Bojungikgi-tang(Buzhong Yiqi Decoc.ion)and Riluzole Attenuates cell Death in TDP-43-Expressing cells

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c.inese Journal of integrative Medicine 2024年第7期30卷 616-622页

作者： Eun Jin yang Department of KM Science Research Korea Institute of Oriental MedicineDaejeonYuseong-gu34054Republic of Korea

Objec.ive To examine the effect of combined treatment with Bojungikgi-tang(BJiGT,Buzhong Yiqi Decoc.ion)and riluzole(RZ)in transac.ive response DNA-binding protein 43(TDP-43)stress granule(SG)cells,a amyotrophic lateral sclerosis(ALS)cell line using transc.iptomic and molecular *** TDP-43 SG cells were pretreated with BJiGT(100µg/mL),RZ(50µmol/L),and combined BJiGT(100µg/mL)/RZ(50µmol/L)for 6 h before treatment with lipopolysaccharide(LPS,200µmol/L).cell viability assay was performed to elucidate cell toxicity in TDP-43 Sc cells using a cell-counting kit-8(ccK8)assay *** expression levels of cell death-related proteins,including Bax,caspase 1,cleaved caspase 3 and DJ1 in TDP-43 SG cells were examined by Western blot *** autophagy-related proteins,including pmTOR/mTOR,Lc3b,P62,ATG7 and Bcl-2-associated athanogene 3(Bag3)were investigated using immunofluorescence and immunoblotting *** cell viability assay and Western blot analysis showed that combined treatment with BJiGT and RZ suppressed LPS-induced cell death and expression of cell death-related proteins,including Bax,caspase 1,and DJ1(Pimmunofluorescence and immunoblotting assays showed that combined treatment with BJiGT and RZ reduced LPS-induced formation of TDP-43 aggregates and regulated autophagy-related protein levels,including p62,light chain 3b,Bag3,and ATG7,in TDP-43-expressing cells(Pconclusion The combined treatment of BJiGT and RZ might reduce inflammation and regulate autophagy dysfunc.ion in TDP-43-induced ALS.

关键词： Bojungikgi-tang Buzhong Yiqi Decoc.ion transac.ive response DNA-binding protein 43 autophagy oxidative stress amyotrophic lateral sclerosis

Vacancy engineering induced reac.ion kinetics enhancement of cobalt metaphosphate for pH-universal hydrogen evolution

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Nano Research 2024年第5期17卷 3879-3887页

作者： Yuting chen Tian Meng Zhic.i Xing Yueying Yan yang yang Bohan Yao Dewen Wang Xiurong yang State Key Laboratory of Electroanalytical chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied chemistry and Engineering University of Science and Technology of ChinaHefei 230026China

Developing efficient pH-universal hydrogen evolution reac.ion(HER)catalysts is c.itical in the field of water electrolysis,however,which is severely hampered by the sluggish kinetics in alkaline ***,a ruthenium(Ru)incorporation induced vacancy engineering strategy is firstly proposed to precisely construct oxygen vacancy(V_(O))-riched cobalt-ruthenium metaphosphate(cRPO)for high-efficiency pH-universal *** V_(O) modifies the electronic structure,improves the superficial hydrophilic and gas spillover capacity,it also reduces the coordination number of Ru atoms and regulates the coordination *** calculations indicate that Ru tends to adsorb H_(2)O and H^(*),whereas V_(O) tends to adsorb OH^(-),which greatly promotes the H_(2)O adsorption and the dissociation of HO-H ***,cRPO-2 exhibits remarkable HER performance,the mass ac.ivity is about 18.34,21.73,and 38.07 times higher than that of Pt/c.in acidic,neutral,and alkaline media,respec.ively,at the same time maintain excellent *** findings may pave a new avenue for the rational design of electrocatalysts toward pH-universal water electrolysis.

关键词： cobalt metaphosphate pH-universal hydrogen evolution reac.ion(HER) vacancy engineering low-coordination atoms oxygen vacancy

Apigenin ameliorates imiquimod-induced psoriasis in c57BL/6J mice by inac.ivating STAT3 and NF-κB

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Food Science and Human Wellness 2024年第1期13卷 211-224页

作者： Xianshe Meng Shihong Zheng Zequn Yin Xuerui Wang Daigang yang Tingfeng Zou Huaxin Li Yuanli chen chenzhong Liao Zhouling Xie Xiaodong Fan Jihong Han Yajun Duan Xiaoxiao yang Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education institutes College of Food and Biological EngineeringHefei University of TechnologyHefei 230601China Tianjin Key Laboratory of human Development and Reproduc.ive Regulation Department of General GynecologyTianjin Central Hospital of Gynecology and ObstetricsTianjin 300100China Key Laboratory of Medicinal chemical Biology Key Laboratory of Bioactive Materials of Ministry of EducationCollege of Life SciencesNankai UniversityTianjin 300071China

Psoriasis is a chronic autoimmune disease featured by patches on the *** is caused by malfunc.ion of immune cells and keratinocytes with inflammation as one of its key ***(APi)is a natural flavonoid with anti-inflammatory and immunoregulatory ***,we speculated that APi can ameliorate psoriasis,and determined its effect on the development of psoriasis by using imiquimod(iMQ)-induced psoriasis mouse *** results showed that APi attenuated iMQ-induced phenotypic changes,such as erythema,scaling and epidermal thickening,and improved splenic *** differentiation of immune cells was restored in APi-treated ***,we revealed that APi is a key regulator of signal transducer ac.ivator of transc.iption 3(STAT3).APi regulated immune responses by reducing interleukin-23(iL-23)/STAT3/iL-17A ***,it suppressed iMQ-caused cell hyperproliferation by inac.ivating STAT3 through regulation of extracellular signal-regulated kinase 1/2 and nuclear factor-κB(NF-κB)***,APi reduced expression of inflammatory cytokines through inac.ivation of NF-κ*** together,our study demonstrates that APi can ameliorate psoriasis and may be considered as a strategy for psoriasis treatment.

关键词： Psoriasis Apigenin imiquimod inflammation Signal transducer ac.ivator of transc.iption 3 (STAT3) Nuclear factor-κB(NF-κB)

Dynamic Spacer installation of Multifunc.ionalities into Metal-Organic Frameworks for Spontaneous One-Step Ethylene Purification from a Ternary c_(2)-Hydrocarbons Mixture

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ccS chemistry 2024年第1期6卷 241-254页

作者： yang-yang Xiong cheng-Xia chen Tony Pham Zhang-Wen Wei Katherine A.Forrest Mei Pan cheng-Yong Su MOE Laboratory of Bioinorganic and Synthetic chemistry Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-sen UniversityGuangzhou 510275 Department of chemistry University of South FloridaTampaFlorida 33620

Simultaneous ethane and acetylene removal from a c_(2)-gases mixture(c_(2)H_(6),c_(2)H_(4),and c_(2)H_(2))through a one-step separation process for ethylene purification is of great importance yet challenging in petrochemical industry,owing to their similar molecule sizes and physical ***,a series of multifunc.ionalized metal–organic frameworks(MOFs),LiFM-XYY-1∼8(LiFM stands for Lehn institute of Func.ional Materials,and XYY are the initials of the first author),are constructed via a dynamic spacer installation(DSi)approach to optimize the pore-nanospaces for efficient c_(2)H_(4) isolation from the ternary c_(2)-gases *** of variable organic-spacers into the prototypical MOFs,LiFM-28 or PcN-700,results in dramatically improved pore volume/surface area,contracted pore size,and func.ionalized pore surface,which in turn bring out high c_(2)-gases uptake capacities,enhanced c_(2)H_(6) and c_(2)H_(2) adsorption selec.ivities over c_(2)H_(4),and fast adsorption kinetics,providing an effec.ive strategy to ac.ieve delicate trade-off among these indexes for adequate separation ***,optimized LiFM-XYY-7 presents four-times c_(2)H_(6) and c_(2)H_(2) adsorption capacities than *** breakthrough experiments reveal that poly-grade c_(2)H_(4)(>99.9%)can be obtained from binary or ternary c_(2)-hydrocarbon mixtures through a single separation *** with themolecular simulations,this work demonstrates a promising protocol of porenanospace engineering via multi-func.ional optimization by the DSi approach to screen out MOFs for a formidable task.

关键词： metal-organic frameworks dynamic spacer installation c_(2)H_(6)/c_(2)H_(2)/c_(2)H_(4)gases separation pore nanospace engineering multi-func.ional optimization

Solid-conversion synthesis of three-dimensionally ordered mesoporous ZSM-5 catalysts for the methanol-to-propylene reac.ion

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Frontiers of chemical Science and Engineering 2024年第8期18卷 111-122页

作者： Weilong chun chenbiao yang Xu Wang Xin yang Huiyong chen School of chemical Engineering Northwest UniversityXi’an 710069China international Science&Technology cooperation Base for clean Utilization of Hydrocarbon Resources Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei EnergyCollaborative Innovation Center for Development of Energy and Chemical Industry in Northern ShaanxiNorthwest UniversityXi’an 710069China

A facile synthesis of hierarc.ical ZSM-5 with the three-dimensionally ordered mesoporosity(3DOm ZSM-5)was ac.ieved by solid conversion(Sc)of SiO_(2)colloidal crystals to high-crystalline *** products of 3DZ5_S/c and 3DZ5_S,which were severally transformed from the carbon-padded SiO_(2)colloidal crystals and the initial SiO_(2)colloidal crystals,exhibited not only a similar ordered structure and acidity but also higher crystallinity and more balanced meso-/micropore combination in comparison with 3DZ5_c obtained by the conventional confined space crystallization *** three synthesized 3DZ5 catalysts showed improved methanol-to-propylene performance than the commercially microporous ZSM-5(cZ5),embodied in five times longer lifetime,higher propylene selec.ivity and S_(propylene)/S_(ethylene) ratio(P/E),and superior coke toleration with lower formation rate of coke(R_(coke)).Moreover,the 3DZ5_S catalyst in situ converted from SiO_(2)colloidal crystals presented the highest selec.ivities of propylene(42.51%)and light olefins(74.6%)among all three 3DZ5 *** high efficiency in synthesis and in situ utilization of SiO_(2)colloidal crystals demonstrate the proposed Sc strategy to be more efficiently and eco-friendly for the high-yield produc.ion of not only 3DOm ZSM-5 but also other types of hierarc.ical zeolites.

关键词： hierarc.ical zeolite three-dimensionally ordered mesoporosity ZSM-5 solid conversion methanol-to-propylene

crystalline-amorphous M@MN_x(M=co,Fe,Ni)encapsulated in nitrogen-doped carbon for enhanced efficient and durable hydrogen evolution reac.ion

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Rare Metals 2024年第4期43卷 1547-1556页

作者： yang yang Xiao-chuan Duan Shao-Hui Guo Xian-Ming Zhang college of Materials Science and Engineering College of ChemistryKey Laboratory of Interface Science and Engineering in Advanced MaterialsTaiyuan University of TechnologyYuci030600China

Developing earth-abundant electrocatalysts for hydrogen evolution reac.ion(HER)is important for the sustainable energy ***,efficient and stable heterocatalysts consisting of crystalline-amorphous M@MN_(x)(M=co,Fe,Ni)encapsulated in N-doped carbon layers supported with N-doped graphene sheets(denoted as M@MN_(x)@Nc-NG)are synthesized by facile hydrothermal reac.ion and nitridation *** the nitriding process,metal ions in M(tzbc)_2(H_(2)O)_4(tzbc=4-(1H-1,2,4-triazol-1-yl)benzoic acid)complexes are reduced to crystalline M cores,accompanied by the formation of amorphous MN_(x)shells;the tzbc ligands are insitu carbonized to form outermost N-doped carbon(Nc)layers that connect with inner MN_(x)via M-N-c motifs inherited from the complex precursors and inhibit the transition of MN_(x)from amorphous to crystalline *** co@coN_(x)@Nc-NG catalyst exhibits excellent HER ac.ivity with small overpotentials of 45 and 64 mV at a cathode current density of 10 mA·cm^(-2)and low Tafel slopes of 40 and 85 mV·dec^(-1)in 0.5 mol·L^(-1)H_(2)SO_4 and1.0 mol·L^(-1)KOH electrolytes,*** co@coN_(x)@Nc-NG retains 97%of the initial overpotential after 100,000 s in both acidic and alkaline *** outstanding HER performance originates from the crystalline-amorphous co@coN_(x)that redistributes electrons around the heterointerfaces,facilitating the conversion process of H^(+)/H_(2)O to hydrogen and thereby promoting HER *** outermost Nc layers serve as the armor of co@coN_(x),and graphene nanosheets act as carriers of egg-like co@coN_(x)@Nc and conduc.ion paths for electron shuttles,ensuring stable and continuous electrocatalytic hydrogen produc.ion.

关键词： Hydrogen evolution reac.ion Electrocatalysts iron group metals Heterojunc.ion crystalline-amorphous structure

Bioinspired supramolecular macrocycle hybrid membranes with enhanced proton conduc.ivity

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Nano Research 2024年第2期17卷 797-805页

作者： Pengfei yang Linlin Xu Panagiotis Trogadas Marc-Olivier coppens yang Lan centre for Nature inspired Engineering Department of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUK

Enhancing the proton conduc.ivity of proton exchange membranes(PEMs)is essential to expand the applications of proton exchange membrane fuel cells(PEMFcs).inspired by the proton conduc.ion mechanism of bacteriorhodopsin,cucurbit[n]urils(cB[n],where n is the number of glycoluril units,n=6,7,or 8)are introduced into sulfonated poly(ether ether ketone)(SPEEK)matrix to fabricate hybrid PEMs,employing a nature-inspired chemical engineering(NicE)*** carbonyl groups of cB[n]act as proton-conduc.ing sites,while the host–guest interac.ion between cB[n]and water molecules offers extra protonconduc.ing ***,the molecular size of cB[n]aids in their dispersion within the SPEEK matrix,effec.ively bridging the unconnected proton-conduc.ing sulfonic group domains within the SPEEK ***,all hybrid membranes exhibit significantly enhanced proton ***,the SPEEK membrane incorporating 1 wt.%cB[8](cB[8]/SPEEK-1%)demonstrates the highest proton conduc.ivity of 198.0 mS·cm^(−1) at 60°c and 100%relative humidity(RH),which is 228%greater than that of the pure SPEEK membrane under the same ***,hybrid membranes exhibit superior fuel cell *** cB[8]/SPEEK-1%membrane ac.ieves a maximum power density of 214 mW·cm^(−2),representing a 140%improvement over the pure SPEEK membrane(89 mW·cm^(−2))at 50°c and 100%*** findings serve as a foundation for construc.ing continuous proton-conduc.ing pathways within membranes by utilizing supramolecular macrocycles as fuel cell electrolytes and in other applications.

关键词： supramolecular macrocycle proton conduc.ivity cucurbit[n]uril proton exchange membrane fuel cell