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Prussian Blue Analogue‑Templated Nanocomposites for Alkali‑Ion Batteries:Progress and Perspective

Nano-Micro Letters 2025年第1期17卷 216-261页

作者： Jian‑en Zhou Yilin Li Xiaoming Lin Jiaye Ye Key Laboratory of Theoretical Chemistry of environment Ministry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006People’s Republic of China school of Chemistry and Physics Faculty of ScienceQueensland University of Technology2 George StreetBrisbaneQLD 4000Australia Centre for Materials science Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia

Lithium-ion batteries(LIBs)have dominated the portable electronic and electrochemical energy markets since their commercialisation,whose high cost and lithium scarcity have prompted the development of other alkali-ion batteries(AIBs)including sodium-ion batteries(sIBs)and potassium-ion batteries(PIBs).Owing to larger ion sizes of Na^(+)and K^(+)compared with Li^(+),nanocomposites with excellent crystallinity orientation and well-developed porosity show unprecedented potential for advanced lithium/sodium/potassium *** enticing open rigid framework structures,Prussian blue analogues(PBAs)remain promising self-sacrificial templates for the preparation of various nanocomposites,whose appeal originates from the well-retained porous structures and exceptional electrochemical activities after thermal *** review focuses on the recent progress of PBA-derived nanocomposites from their fabrication,lithium/sodium/potassium storage mechanism,and applications in AIBs(LIBs,sIBs,and PIBs).To distinguish various PBA derivatives,the working mechanism and applications of PBA-templated metal oxides,metal chalcogenides,metal phosphides,and other nanocomposites are systematically evaluated,facilitating the establishment of a structure–activity correlation for these *** on the fruitful achievements of PBA-derived nanocomposites,perspectives for their future development are envisioned,aiming to narrow down the gap between laboratory study and industrial reality.

关键词： Prussian blue analogues self-sacrificial template Lithium-ion batteries sodium-ion batteries Potassium-ion batteries

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On the Variation of a Metric and Its Application

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Acta Mathematica sinica,english series 2010年第10期26卷 2003-2014页

作者： fa.en WU Department of Mathematics School of Science Beijing Jiaotong University Beijing 100044 P. R. China

some of the variation formulas of a metric were derived in the literatures by using the local coordinates system, In this paper, We give the first and the second variation formulas of the Riemannian curvature tensor, Ricci curvature tensor and scalar curvature of a metric by using the moving frame method. We establish a relation between the variation of the volume of a metric and that of a submanifold. We find that the latter is a consequence of the former. Finally we give an application of these formulas to the variations of heat invariants. We prove that a conformally flat metric g is a critical point of the third heat invariant functional for a compact 4-dimensional manifold M, then （M, g） is either scalar flat or a space form.

关键词： Riemannian functional variation of a metric volume variation space form heat invariant

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salinity Distribution at Canal Istanbul and Its Possible Impacts on the Northern Marmara sea

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China Ocean engineering 2020年第6期34卷 881-888页

作者： Şehriban saÇU Tarkan ERDIK OlgayŞen Istanbul Technical University MaslakIstanbul 34467Turkey

Turkey has announced its plan to construct a new waterway, Canal Istanbul, parallel to the Bosphorus. In this study,the influence of Canal Istanbul on salinity distribution in the northern Marmara sea is investigated using a previously calibrated 3 D hydrodynamic and salinity model. Moreover, the salinity field of the canal and its propagation are examined based on various meteorological cases. Finally, the flow structure of the canal is determined. It is calculated that at the southern end of the canal, mainly unidirectional flow(from the Black sea to the Marmara sea)occurs during 68% of the simulation period. A two-layer flow is seen only 28% of the time with a weak lower layer flow, whereas this value decreases to 4% at the north end of the canal. In the southward direction(to the Marmara sea), velocities higher than 1.5 m/s are rarely observed along the canal. The average surface salinity difference in the northern Marmara sea due to the construction of the canal is calculated to be smaller than 0.50 ppt. The salinity difference gradually diminishes as water depth increases and after 25 m(from the surface) almost no difference is observed.

关键词： Canal Istanbul Marmara sea salinity distribution hydrodynamic modeling

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Optimal Control Problem Governed by semilinear Parabolic Equation and its Algorithm

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Acta Mathematicae Applicatae sinica 2008年第1期24卷 29-40页

作者： Chun-fa Li Xue Yang en-min Feng school of Management Tianjin University of Technology Tianjin 300191 China school of Management Tianjin University Tianjin 300072 China Department of Applied Mathematics Dalian University of Technology Dalian 116024 China

In this paper, an optimal control problem governed by semilinear parabolic equation which involves the control variable acting on forcing term and coefficients appearing in the higher order derivative terms is formulated and analyzed. The strong variation method, due originally to Mayne et al to solve the optimal control problem of a lumped parameter system, is extended to solve an optimal control problem governed by semilinear parabolic equation, a necessary condition is obtained, the strong variation algorithm for this optimal control problem is presented, and the corresponding convergence result of the algorithm is verified.

关键词： Distributed parameter system strong variation method optimal control adjoint system semilinear parabolic equations

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Deciphering the mechanobiology of microglia in traumatic brain injury with advanced microsystems

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Neural Regeneration Research 2025年第8期20卷 2304-2306页

作者： Anthony Procès sylvain Gabriele Univ.Grenoble Alpes InsermU1216Grenoble Institut des NeurosciencesGrenobleFrance Mechanobiology&Biomaterials Group CIRMAPResearch Institute for BiosciencesUniversity of MonsMonsBelgium

Advanced microsystems in traumatic brain injury research:Traumatic brain injury(TBI)results from a mechanical insult to the brain,leading to neuronal and axonal damage and subsequently causing a secondary *** minutes ... 详细信息

关键词： traumatic injury damage

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Microbiological assessment of indoor air of a teaching hospital in Nigeria

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Asian Pacific Journal of Tropical Biomedicine 2012年第6期2卷 465-468页

作者： Awosika sa Olajubu fa Amusa NA Department of Microbiology Olabisi Onabanjo University Department of Medical Microbiology & Parasitology Olabisi Onabanjo University Teaching Hospital Department of Plant science & Applied Zoology Olabisi Onabanjo University

Objective:To investigate the quality of indoor air of different wards and units of Olabisi Onabanjo University Teaching Hospital, sagamu, to ascertain their contribution to infection rate in the ***:The microbial quality of indoor air of nine wards/units of Olabisi Onabanjo University Teaching Hospital, sagamu, Nigeria was conducted. sedimentation technique using open Petri-dishes containing different culture media was employed and samplings were done twice daily, one in the morning shortly after cleaning and before influx of people/patients into the wards/units and the other in the evening when a lot of activities would have taken place in these wards. Isolates were identified according to standard ***:Results showed that there was a statistically significant difference(氈2= 6.0167) in the bacteria population of the different sampling time whereas it was not so for fungi population(氈2= 0.2857). Male medical ward(MMW) and male surgical general(MsG) recorded the highest bacterial and fungal growth while the operating theatre(OT) was almost free of microbial burden. The bacteria isolates were staphylococcus aureus, Klebsiellasp., Bacillus cereus, Bacillus subtilis, streptococcus pyogenes andserratia marscenceswhile the fungi isolates includedAspergillus flavus, Penicilliumsp.,Fusariumsp.,Candida *** aureuswas the predominantly isolated bacterium whilePenicilliumsp. was the most isolated ***:Though most of the microbial isolates were potential and or opportunistic pathogens, there was no correlation between the isolates in this study and the surveillance report of nosocomial infection during the period of study, hence the contribution of the indoor air cannot be established. From the reduction noticed in the morning samples, stringent measures such as proper disinfection and regular cleaning, restriction of patient relatives' movement in and out of the wards/units need to be enforced so as to imp

关键词： Indoor air OOUTH Open-plate technique Nosocomial infections staphylococcus aureus Microbiological assessment Microbial quality Bacterial isolate Fungal isolate Opportunistic pathogen Nosocomial infection Infection rate Microbial isolate Penicilliumsp sedimentation technique

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symmetries and symmetry reductions of the combined KP3 and KP4 equation

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Communications in Theoretical Physics 2023年第1期75卷 15-20页

作者： fa-ren Wang s Y Lou school of Physical science and Technology Ningbo UniversityNingbo315211China

To find symmetries,symmetry groups and group invariant solutions are fundamental and significant in nonlinear *** this paper,the finite point symmetry group of the combined KP3 and KP4(CKP34)equation is found by means of a direct *** related point symmetries can be obtained simply by taking the infinitesimal form of the finite point symmetry *** point symmetries of the CKP34 equation constitute an infinite dimensional KacMoody-Virasoro *** point symmetry invariant solutions of the CKP34 equation are obtained via the standard classical Lie point symmetry method.

关键词： symmetry reduction integrable system Lie algebra

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Complete Formulas for the Volumes of Tubes about Curves in a Riemannian Manifold

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Acta Mathematica sinica,english series 2001年第2期17卷 243-252页

作者： fa.en WU Department of Mathematics. Northern Jiaotong University. Beijing 100044, P. R. China Department of Mathematics Northern Jiaotong University Beijing 100044 P. R. China

By using the Taylor expansions of the solutions of Jacobi equations, we obtain the complete formulas for the volumes of tubes about curves in a Riemanuian manifold. This unifies the known results and simplifies the computations involved in this direction. In the special case of surfaces, we also obtain the corresponding complete formulas which generalize the known results.

关键词： Fermi coordinates N-Jacobi field Taylor expansion Volumes of tubes

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Design of 1.9 GHz RF CMOs VCO

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The Journal of China Universities of Posts and Telecommunications 2009年第3期16卷 103-107页

作者： LI en-ling WANG Xue sONG Lin-hong YUAN Yong-xia YU fa-da LIU Man-cang school of sciences XJ'an University of Technology Xi'an 710048 China

A voltage controlled oscillator （VCO） module is designed, which can be used for the third generation mobile communication （3G） system. The circuit is simulated by spectre radio frequency （RF） by TsMC 0.25 μm CMOs process. During the simulation, the performance parameters of the designed VCO are as follows： tuning range 1.804 GHz-2.039 GHz, phase noise - 136.457 dBc/Hz @1 MHz, - 146.045 dBc/Hz@3 MHz, supply voltage 2.5 V, voltage output rate of 0.8 V-2.6 V, power consumption 25 roW. The layout of the related circuit is drawn by the Virtuoso Layout Editor.

关键词： LC voltage controlled oscillator on-chip inductor on-chip varactor phase noise

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A novel Li-ion supercapattery by K-ion vacant ternary perovskite fluoride anode with pseudocapacitive conversion/insertion dual mechanisms

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Rare Metals 2022年第7期41卷 2491-2504页

作者： Yong-fa Huang Rui Ding Dan-Feng Ying Yu-Xi Huang Tong Yan Cai-Ni Tan Xiu-Juan sun en-Hui Liu Key Laboratory of environmentally Friendly Chemistry and Applications of Ministry of Education College of ChemistryXiangtan UniversityXiangtan 411105China

An innovative K+vacant ternary perovskite fluoride(K_(0.89)Ni_(0.02)Co_(0.03)Mn_(0.95)F_(3.0),KNCMF-3#)anode was designed for advanced Li-ion supercapattery(i.e.,Li-ion capacitors/batteries,LIC/Bs).Owing to the conversion/insertion dual mechanisms and fast pseudocapacitive con-trol dynamics,the KNCMF-3#electrode exhibits superior electrochemical performance,especially the excellent cycle performance(467%(229 mAh·g^(-1))/1000 cycles/2 A·g^(-1)).Moreover,the hybrid KNCMF-3#/reduced gra-phene oxide(rGO)electrode can further increase the electrochemical performance(217-97 mAh·g^(-1)/0.1-3.2 A·g^(-1),150%(197 mAh·g^(-1))/1000 cycles/2 A·g^(-1)).Also,a novel capacitor/battery cathode,activated carbon(AC)+LiFePO_(4)+graphene(AC+LFP+G),exhibits impres-sive performance(128-82 mAh·g^(-1)/0.1-3.2 A·g^(-1),84%/1000 cycles/2 A·g^(-1)).By the synergistic optimization of anode and cathode,the Li-ion supercapattery KNCMF-3#@rGO//AC+LFP+G demonstrates remarkable per-formance,for example,111.9-23.8 Wh·kg^(-1)/0.4-8.0 kW·kg^(-1)/82%/2000 cycles/5 A·g^(-1)/0-4 V,which is superior to KNCMF-3#//AC LICs,KNCMF-3#@rGO//AC LICs,KNCMF-3#//AC+LFP+G LIC/*** all,the novel Li-ion supercapattery idea adds a promising per-spective to develop advanced energy storage devices.

关键词： Perovskite fluoride Defect Anode Li-ion supercapattery Pseudocapacitive

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