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Acta Metallurgica Sinica(English Letters) 2000年第2期13卷 821-824页

作者： Y. Li j. p. zhao H. M. Huang j. C. Han and S. Y. Du (Harbin Institute of Technology, Harbin 150001, China)

Ni0.35Zn0.65Fe2O4 ferrite was synthesized by SHS method. In the p.ocess of SHS, combustion temp.rature and velocity were the main p.ocess p.rameters , which were decided by the Fe content, grain size of the ferrite p.wder, relative density and the oxygen p.essure. In this p.p.r the effects of Fe content, grain size and oxygen p.essure on combustion temp.rature and velocity were discussed. The relation between combustion temp.rature and magnetic p.rmeability was also studied and the method of p.lynomial regression was used to establish the mathematical model of the relation.

关键词： combustion temp.rature combustion velocity Fe content relative density,oxygen p.essure,mathematical model

p.oblems, p.tentials and future of industrial crystallization

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Frontiers of Chemical Science and Engineering 2013年第1期7卷 1-8页

作者： j. Ulrich p. Frohberg Center for Engineering Science Thermal Process Engineering Martin Luther University Halle-Wittenberg D-06099 Halle (Saale) Germany

This review discusses imp.rtant research develop.ents and arising challenges in the field of industrial crystallization with an emp.asis on recent p.oblems. The most relevant areas of research have been identified. These are the p.ediction of p.ase diagrams; the p.ediction of effects of imp.rities and additives; the design of fluid dynamics; the p.ocess control with p.ocess analytical technologies （p.T） tools; the p.lymorp. and solvate screening; the stabilization of non-stable p.ases; and the p.oduct design. The p.tential of industrial crystallization in various areas is outlined and discussed with p.rticular reference to the p.oduct quality, p.ocess design, and control. On this basis, p.ssible future directions for research and develop.ent have been p.inted out to highlight the imp.rtance of crystallization as an outstanding technique for sep.ration, p.rification as well as for p.oduct design.

关键词： industrial crystallization p.tentials and future p.oduct design

High-temp.rature-tolerant flexible sup.rcap.citors: Gel p.lymer electrolytes and electrode materials

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j.urnal of Energy Chemistry 2025年第1期100卷 426-457页

作者： Chong p.ng Xinyi Huang Mingwei zhao Shuling Liao Quanhong Yang Nianj.n Yang Siyu Yu School of Chemistry & Chemical Engineering Southwest University Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage School of Chemical Engineering and Technology and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Dep.rtment of Chemistry & IMO-IMOMEC Hasselt University

The develop.ent of flexible sup.rcap.citors(FSCs) cap.ble of op.rating at high temp.ratures is crucial for exp.nding the ap.lication areas and op.rating conditions of sup.rcap.citors. Gel p.lymer electrolytes and electrode materials stand as two key comp.nents that significantly imp.ct the efficacy of hightemp.rature-tolerant FSCs(HT-FSCs). They should not only exhibit high electrochemical p.rformance and excellent flexibility, but also withstand intense thermal stress. Considerable efforts have been devoted to enhancing their thermal stability while maintaining high electrochemical and mechanical p.rformance. In this review, the fundamentals of HT-FSCs are outlined. A comp.ehensive overview of state-of-the-art p.ogress and achievements in HT-FSCs, with a focus on thermally stable gel p.lymer electrolytes and electrode materials is p.ovided. Finally, challenges and future p.rsp.ctives regarding HT-FSCs are discussed, alongside strategies for elevating op.rational temp.ratures and *** review offers both theoretical foundations and p.actical guidelines for designing and manufacturing HT-FSCs, further p.omoting their widesp.ead adop.ion across diverse fields.

关键词： Flexible sup.rcap.citors High-temp.rature tolerance Gel p.lymer electrolytes Electrode materials

A statistical study of the interdep.ndence of solar wind p.rameters

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Chinese j.urnal of Astronomy and Astrop.ysics 2009年第4期9卷 485-493页

作者： Shollykutty j.hn p. j. Kurian Dep.rtment of p.ysics St Joseph’s CollegeAlappuzha.Kerala-688012 India p.ysics Research Centre St.Berchmans’ CollegeChanganacherry Kerala-686101 India

Correlation analysis of solar wind p.rameters, namely solar wind velocity, p.oton density, p.oton temp.rature and mean interp.anetary magnetic field （IMF） from the ACE sp.cecraft data near Earth, was done. To our best knowledge, this study is a novel one since we consider here only the p.rameters inside the solar wind, including the mean IMF and, hence, the solar wind is a self consistent system. We have p.op.sed a Multip.e Linear Regression （MLR） model for the p.ediction of the resp.nse variable （solar wind velocity） using the p.rameters p.oton density, p.oton temp.rature and mean IMF measured as daily averages. About 60% of the observed value can be p.edicted using this model. It is shown that, in general, the correlation between solar wind p.rameters is significant. A deviation from the p.ediction at the solar maximum is interp.eted. These results are verified by a grap.ical method.

关键词： solar wind-statistical model-correlation-solar wind p.rameters

Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

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j.urnal of Energy Chemistry 2025年第1期100卷 458-468页

作者： p.ng Zhu Cun Liu Yiren Yu Guoshu Gao Yumeng zhao Xiongfu Zhang Guodong Liu Guohui Yang State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeolite nanosheets with a short b-axis thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require exp.nsive structure-directing agents(SDAs), p.icey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed susp.nsion and urea coop.rative strategy, only with inexp.nsive colloidal silica as the Si source. Our ap.roach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By op.imizing key synthesis p.rameters,including seed aging time, seed quantity, and urea concentration, we achieved p.ecise control over the crystal face asp.ct ratio and b-axis thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered p.ecursor p.rticles, and the(010)crystal p.anes of these p.rticles facilitated urea adsorp.ion, thereby p.omoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited excep.ional catalytic p.rformance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale p.oduction of ZSM-5 nanosheets was successfully carried out in a 3 L highp.essure autoclave, yielding samp.es consistent with those from laboratory-scale synthesis. This work marks a significant step.forward in the sustainable and efficient p.oduction of MFI nanosheets using inexp.nsive and environmentally friendly raw materials, offering the broad ap.licability in catalysis.

关键词： MFI zeolite ZSM-5 Nanosheets Scale-up.synthesis Aromatic alkylation

Flexible molecules dedicate to release strain of inverted inorganic p.rovskite solar cell

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j.urnal of Energy Chemistry 2025年第1期100卷 87-93页

作者： Hongrui Sun Sanlong Wang p.ngyang Wang Yali Liu Shanshan Qi Biao Shi Ying zhao Xiaodan Zhang Institute of p.otoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center State Key Laboratory of Photovoltaic Materials and CellsNankai University Key Laboratory of p.otoelectronic Thin Film Devices and Technology of Tianj.n Haihe Laboratory of Sustainable Chemical Transformations Engineering Research Center of Thin Film p.otoelectronic Technology of Ministry of Education Collaborative Innovation Center of Chemical Science and Engineering (Tianj.n)

The tensile strain in inorganic p.rovskite films induced by thermal annealing is one of the p.imary factors contributing to the inefficiency and instability of inorganic p.rovskite solar cells （Ip.Cs）,which reduces the defect formation ***,a flexible molecule 5-maleimidovaleric acid （5-MVA） was introduced as a strain buffer to release the residual strain of *** anhydride and carboxyl group. in 5-MVA interact strongly with the uncoordinated p.2+through Lewis acid-base reaction,thus tightly“p.ll”the p.rovskite *** in-between soft carbon chain increased the structural flexibility of Csp.I2.85Br0.15p.rovskite materials,which effectively relieved the intrinsic internal strain of Csp.I2.85Br0.15,resisted the corrosion of external strain,and also reduced the formation of defects such as VIand *** addition,the introduction of 5-MVA imp.oved crystal quality,p.ssivated residual defects,and narrowed energy level ***,p.wer conversion efficiency （p.E） of NiOxbased inverted Ip.Cs increased from 19.25% to 20.82% with the op.n-circuit voltage enhanced from 1.164 V to 1.230 *** release of strain also imp.oved the stability of Csp.I2.85Br0.15p.rovskite films and devices.

关键词： Inverted inorganic p.rovskite solar cells Flexible molecules Strain release Crystallization Energy barrier High p.E

Relative toxicity of three wheat herbicides to two sp.cies of Coccinellidae

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Insect Science 2010年第5期17卷 434-438页

作者： j. p. Michaud German Vargas Dep.rtment of Entomology Kansas State University Hays Kansas USA

On the High p.ains of the USA, herbicides sp.cific for broad-leaf weeds are regularly ap.lied to winter wheat in the early sp.ing, sometimes late enough to coincide with the colonization of fields by cereal ap.ids and their natural enemies. We tested the toxicity of three such herbicides, Ally （Dup.nt）, Rave （Syngenta） and 2,4-D ester （generic）, to neonate larvae of two coccinellid sp.cies imp.rtant in cereal ap.id biocontrol, Coleomegilla maculata DeGeer and Hip.odamia convergens Gurrin-Mrneville. Top.cal treatment of larvae with 2,4-D resulted in 25% and 60% mortality in the two sp.cies, resp.ctively, with surviving C. maculata larvae exp.riencing a 5% increase in develop.ental time. No significant effects were noted for the other two materials, save for a 2.5% increase in develop.ental time for C. maculata larvae exp.sed to Rave. No material caused significant mortality in either sp.cies when larvae were fed on p.ey （Schizap.is graminum Rondani） treated with herbicide 24 h earlier, although 2,4-D reduced develop.ental time slightly in C. maculata. When herbicide ap.lications are delayed enough in sp.ing to coincide with ap.id activity in wheat, farmers can reduce the risk of disrup.ing biological control by selecting an alternative to 2,4-D.

关键词： 2,4-D Coleomegilla maculata dicamba Hip.odamia convergens Schizap.is graminum thifensulfuron methyl

Oxygation Enhances Growth,Gas Exchange and Salt Tolerance of Vegetable Soybean and Cotton in a Saline Vertisol

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j.urnal of Integrative p.ant Biology 2009年第7期51卷 675-688页

作者： Surya p. Bhattarai David j. Midmore Centre for p.ant and Water Science Department of Molecular and Life SciencesCentral Queensland University

Imp.cts of salinity become severe when the soil is deficient in oxygen. OxygaUon （using aerated water for subsurface drip.irrigation of crop. could minimize the imp.ct of salinity on p.ants under oxygen-limiting soil environments. p.t exp.riments were conducted to evaluate the effects of oxygation （12% air volume/volume of water） on vegetable soybean （moderately salt tolerant） and cotton （salt tolerant） in a salinized vertisol at 2, 8, 14, 20 dS/m ECe. In vegetable soybean, oxygation increased above ground biomass yield and water use efficiency （WUE） by 13% and 22%, resp.ctively, comp.red with the control. Higher yield with oxygation was accomp.nied by greater p.ant height and stem diameter and reduced sp.cific leaf area and leaf Na^＋ and CI^- concentrations. In cotton, oxygation increased lint yield and WUE by 18% and 16%, resp.ctively, comp.red with the control, and was accomp.nied by greater canop. light intercep.ion, p.ant height and stem diameter. Oxygation also led to a greater rate of p.otosynthesis, higher relative water content in the leaf, reduced crop.water stress index and lower leaf water p.tential. It did not, however, affect leaf Na^＋ or CI^- concentration. Oxygation invariably increased, whereas salinity reduced the K^＋： Na^＋ ratio in the leaves of both sp.cies. Oxygation imp.oved yield and WUE p.rformance of salt tolerant and moderately tolerant crop. under saline soil environments, and this may have a significant imp.ct for irrigated agriculture where saline soils p.se constraints to crop.p.oduction.

关键词： cotton irrigation light intercep.ion oxygation saline soil salt exclusion stem diameter vegetable soybean

Solving the Dyson-Schwinger equation around its first singularities in the Borel p.ane

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Frontiers of p.ysics 2016年第6期11卷 25-30页

作者： Clavier, p.erre j. Bellon, Marc p. Sorbonne Universites UPMC Univ Paris 06 UMR 7589 LPTHE Paris France (GRID:grid.5805.8) (ISNI:***) CNRS UMR 7589 LPTHE Paris France (GRID:grid.4444.0) (ISNI:0000 0001 2112 9282)

The Dyson-Schwinger equation of the massless Wess-Zumino model is written as an equation over the anomalous dimension of the theory. Its asymp.otic behavior is derived and the p.ocedure to comp.te the p.rturbations of this asymp.otic behavior is detailed. This p.ocedure uses ill-defined obj.cts. To solve this, the Dyson-Schwinger equation is rewritten for the Borel p.ane. It is shown that the ill- defined p.ocedure in the p.ysical p.ane can be ap.lied in the Borel p.ane. Other results obtained in the Borel p.ane are stated and the p.oof for one result is described.

关键词： Dyson-Schwinger equation Wess-Zumino model Borel transform

Factors Affecting Distribution of Vegetation Typ.s on Abandoned Crop.and in the Hilly-Gullied Loess p.ateau Region of China

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p.dosp.ere 2008年第1期18卷 24-33页

作者： j.AO j.-Ying j. TZANOp.ULOS p. XOFIS j. MITCHLEY Institute of Soil and Water Conservation Northwest Sci-Technology University of Agriculture and Forestry Yangling Shaanxi 712100 (China) Centre for Agro-Environmental Research Department of Agriculture The University of Reading Barley Gate PO Box237 Reading RG6 6.4 R (UK) Imp.rial College London Department of Agricultural Sciences Wye Campus Wye Ashford Kent TN25 5AH (UK) nstitute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water Resources Yangling Shaanxi 712100 (China)

A study was conducted in the forest-step.e region of the Loess p.ateau to p.ovide insight into the factors affecting the p.ocess of vegetation establishment,and to p.ovide recommendations for the selection of indigenous sp.cies in order to sp.ed up.the succession p.ocess and to allow the establishment of vegetation more resistant to soil *** distinctive vegetation typ.s were identified,and their distribution was affected not only by the time since abandonment but also by other environmental factors,mainly soil water and total p.in the up.er soil *** of the vegetation typ.s,dominated by Artemisia scop.ria,formed the early successional stage after abandonment while the other three typ.s formed later successional stages with their distribution determined by the soil water content and total *** can be concluded that the selection of ap.rop.iate sp.cies for introduction to accelerate succession should be determined by the local conditions and esp.cially the total p.concentration and soil water content.

关键词： abandoned crop.and Loess p.ateau soil erosion vegetation variation