preparation

摘要： Difenoconazole(DIF)is a representative variety of broad-spectrum triazole fungicides and liposoluble pesticides.However,the water solubility of DIF is so poor that its application is limited in plant protection.In addition,the conventional formulations of DIF always contain abundant organic solvents,which may cause pollution of the environment.In this study,two DIF/cyclodextrins(CDs)inclusion complexes(ICs)were successfully prepared,which were DIF/β-CD IC and DIF/hydroxypropyl-β-CD IC(DIF/HP-β-CD IC).The effect of cyclodextrins on the water solubility and the antifungal effect of liposoluble DIF pesticide were investigated.According to the phase solubility test,the molar ratio and apparent stability constant of ICs were obtained.Fourier transform infrared spectroscopy,thermal gravity analysis,X-ray diffraction and scanning electron microscopy were used systematically to characterize the formation and characteristics of ICs.The results noted that DIF successfully entered the cavities of two CDs.In addition,the antifungal effect test proved the better performance of DIF/HP-β-CD IC,which exceeded that of DIF emulsifiable concentrate.Therefore,our study provides informative direction for the intelligent use of liposoluble pesticides with cyclodextrins to develop water-based environmentally friendly formulations.

摘要： With the advantages of abundant resources,high specific capacity,and relatively stable cycling performance,silicon suboxides(SiO_(x) ,x<2)have been recently suggested as promising anodes for next-generation lithium-ion batteries(LIBs).SiO_(x) exhibits superior storage capability because of the presence of silicon and smaller volume change upon charge/discharge than Si owing to the buffering effect of the initial lithiation products of inert lithium oxide and lithium silicates,enabling a stable cycle life of electrodes.However,significant improvements such as overcoming issues related to volume changes in cycling and initial irreversible capacity loss and enhancing the ionic and electronic charge transport in poorly conducting SiO_(x) electrodes,are still needed to achieve the satisfactory performance required for commercial applications.This review summarizes recent progress on the cycling performance and initial coulombic efficiency of SiO_(x) .Advances in the design of particle morphology and composite composition,prelithiation and prereduction methods,and usage of electrolyte additives and optimized electrode binders are discussed.Perspectives on the promising research directions that might lead to further improvement of the electrochemical properties of SiO_(x) -based anodes are noted.This paper can serve as a basis for the research and development of high-energy-density LIBs.

摘要： The isolation of graphene and subsequent studies showed that obtaining atomically thin crystalline sheets was feasible and possessed extraordinary properties.This result opened the door to an entirely new family of materials known as two-dimensional or 2D materials.Research in this field is intense:the emergence of new 2D materials,the properties of their combinations and the ability of graphene to reinvent itself,showing novel and exciting properties,make it likely that this field will continue to be one of the leading topics of materials science and condensed matter physics.

摘要： Li Ming(李明)Prof.Li is a tenured professor in the School of Materials Science and Engineering at Shanghai Jiao Tong University,and the founder of the Institute of Electronics Materials and Technology.He received his Ph D degree from Kyushu Institute of Technology(Japan)in 1998.He then worked in a Japanese manufacturing company Mitsui High-Tec Inc.for many years.Currently,his research interest mainly focused 3D packaging materials and technology(lead-free solder,interconnection,low temperature bonding),nanostructured materials and functional thin films preparation routed by electrochemical method(electrodeposition,electro-grafting).

摘要： Crumble rubber(CR)can be used to prepare CR and styrene-butadiene-styrene(SBS)composite modified asphalt with a good high-and low-temperature performance,meanwhile the addition of CR could work as the substitute for SBS and help reduce the content of SBS.This study contains three main parts:effect of preparation and effect of material composition as well as rheological performance characterization.Factors during the preparation,including shearing temperature,shearing time,mixing time and swelling time,were selected,while base binder,CR content,CR particle size and SBS content in material composition were considered.The effects of these factors were assessed in terms of the conventional performance(penetration,softening point,ductility and storage stability).After identifying these effects,the sample of CR and SBS modified asphalt at the selected preparing condition and material composition(CR/SBSMA)was made,and the corresponding SBS modified and CR modified asphalt(SBSMA and CRMA)were produced for the comparing reason.Subsequently,temperature sweeps from 0°C to 80°C were utilized to depict the viscoelasticity of these modified asphalt binders by complex modulus and phase angle.Multiple stress creep recovery tests(MSCR)at 64°C and bending beam rheometer tests(BBR)at various low temperatures were employed to evaluate the high-and low-temperature performance,respectively.Results highlight that that CR/SBSMA could exhibit an excellent high-temperature performance(better than SBSMA),and a good low-temperature performance(reaching the level of base binder).

摘要： Shenzhou-14 Crew Enters Tianzhou-5 Cargo Craft The Shenzhou-14 crew entered the Tianzhou-5 cargo craft on November 13,according to the China Manned Space Agency(CMSA),which also announced China will launch the Tianzhou series every six months in the future.The crew opened the hatch door of Tianzhou-5 at 2:18 p.m.(Beijing Time)and entered the cargo spacecraft at 3:03 p.m.following preparation work,the CMSA said.

摘要： Emergencies can happen anytime,so being prepared for a home first aid kit(急救箱)is important for your family.Having a proper one in your home is an easy but necessary part of good emergency preparation.

摘要： cqvip:Emergencies can happen anytime,so being prepared for a home first aid kit(急救箱)is important for your family.Having a proper one in your home is an easy but necessary part of good emergency preparation.

摘要： Do you like traveling by bike?Even if you are an expert cyclist,deciding to travel by bike on an adventure will demand thorough preparation and research.Here are some tips for you.

摘要： We present an optimal and reproducible protocol by which the whole mount myenteric plexus(MP)preparation of adult rat stomach and intestine can be isolated with integrity.We also investigate whether the rat MP contains intrinsic catecholaminergic neurons.Critical steps of the whole mount preparation were optimized,including tissue clearing,fixation,size,placement and the detailed dissection procedures.Additionally,whole mount fluorescent immunohistochemistry of tyrosine hydroxylase(TH),the rate-limiting enzyme of catecholaminergic biosynthesis was used as aneuronal marker to ascertain the existence of intrinsic catecholaminergic neurons.

摘要： N-butylpyridinium chloride (BPC) and aluminum chloride-n-butylpyridinium chloride (A1C13-BPC) ionic liquids were prepared in this paper. The obtained intermediate BPC was identified by H NMR and Raman spectra. The electrochemical windows and electric conductivities of acidic, neutral and basic AlCl3-BPC ionic liquids were determined. The electrochemical window of neutral ionic liquids is the widest of the three A1C13-BPC ionic liquids. The electric conductivities are increased with increasing temperature, and can be described by Arrhenius equation. The sequence of electric conductivities can be expressed as KA > Kb > KC, where ka, kb, and KC are electric conductivities for acidic, basic and neutral AIC13-BPC ionic liquids, respectively.

摘要： N-butylpyridinium chloride (BPC) and aluminum chloride-n-butylpyridinium chloride (A1C13-BPC) ionic liquids were prepared in this paper. The obtained intermediate BPC was identified by H NMR and Raman spectra. The electrochemical windows and electric conductivities of acidic, neutral and basic AlCl3-BPC ionic liquids were determined. The electrochemical window of neutral ionic liquids is the widest of the three A1C13-BPC ionic liquids. The electric conductivities are increased with increasing temperature, and can be described by Arrhenius equation. The sequence of electric conductivities can be expressed as KA > Kb > KC, where ka, kb, and KC are electric conductivities for acidic, basic and neutral AIC13-BPC ionic liquids, respectively.

摘要： N-butylpyridinium chloride (BPC) and aluminum chloride-n-butylpyridinium chloride (A1C13-BPC) ionic liquids were prepared in this paper. The obtained intermediate BPC was identified by H NMR and Raman spectra. The electrochemical windows and electric conductivities of acidic, neutral and basic AlCl3-BPC ionic liquids were determined. The electrochemical window of neutral ionic liquids is the widest of the three A1C13-BPC ionic liquids. The electric conductivities are increased with increasing temperature, and can be described by Arrhenius equation. The sequence of electric conductivities can be expressed as KA > Kb > KC, where ka, kb, and KC are electric conductivities for acidic, basic and neutral AIC13-BPC ionic liquids, respectively.

摘要： N-butylpyridinium chloride (BPC) and aluminum chloride-n-butylpyridinium chloride (A1C13-BPC) ionic liquids were prepared in this paper. The obtained intermediate BPC was identified by H NMR and Raman spectra. The electrochemical windows and electric conductivities of acidic, neutral and basic AlCl3-BPC ionic liquids were determined. The electrochemical window of neutral ionic liquids is the widest of the three A1C13-BPC ionic liquids. The electric conductivities are increased with increasing temperature, and can be described by Arrhenius equation. The sequence of electric conductivities can be expressed as KA > Kb > KC, where ka, kb, and KC are electric conductivities for acidic, basic and neutral AIC13-BPC ionic liquids, respectively.

摘要： N-butylpyridinium chloride (BPC) and aluminum chloride-n-butylpyridinium chloride (A1C13-BPC) ionic liquids were prepared in this paper. The obtained intermediate BPC was identified by H NMR and Raman spectra. The electrochemical windows and electric conductivities of acidic, neutral and basic AlCl3-BPC ionic liquids were determined. The electrochemical window of neutral ionic liquids is the widest of the three A1C13-BPC ionic liquids. The electric conductivities are increased with increasing temperature, and can be described by Arrhenius equation. The sequence of electric conductivities can be expressed as KA > Kb > KC, where ka, kb, and KC are electric conductivities for acidic, basic and neutral AIC13-BPC ionic liquids, respectively.

摘要： N-butylpyridinium chloride (BPC) and aluminum chloride-n-butylpyridinium chloride (A1C13-BPC) ionic liquids were prepared in this paper. The obtained intermediate BPC was identified by H NMR and Raman spectra. The electrochemical windows and electric conductivities of acidic, neutral and basic AlCl3-BPC ionic liquids were determined. The electrochemical window of neutral ionic liquids is the widest of the three A1C13-BPC ionic liquids. The electric conductivities are increased with increasing temperature, and can be described by Arrhenius equation. The sequence of electric conductivities can be expressed as KA > Kb > KC, where ka, kb, and KC are electric conductivities for acidic, basic and neutral AIC13-BPC ionic liquids, respectively.

摘要： A siloxane-acrylate micro-emulsion of muhipolymer was prepared by using of seed emulsion polymerization. The effects main factors such as emulsifier and initiator amounts, polymerization temperature, functional monomers amounts influencing the performances of emulsion have been discussed. The controlling parameters of high performances of micro-emulsion have been given.

摘要： A siloxane-acrylate micro-emulsion of muhipolymer was prepared by using of seed emulsion polymerization. The effects main factors such as emulsifier and initiator amounts, polymerization temperature, functional monomers amounts influencing the performances of emulsion have been discussed. The controlling parameters of high performances of micro-emulsion have been given.

摘要： A siloxane-acrylate micro-emulsion of muhipolymer was prepared by using of seed emulsion polymerization. The effects main factors such as emulsifier and initiator amounts, polymerization temperature, functional monomers amounts influencing the performances of emulsion have been discussed. The controlling parameters of high performances of micro-emulsion have been given.

摘要： A siloxane-acrylate micro-emulsion of muhipolymer was prepared by using of seed emulsion polymerization. The effects main factors such as emulsifier and initiator amounts, polymerization temperature, functional monomers amounts influencing the performances of emulsion have been discussed. The controlling parameters of high performances of micro-emulsion have been given.