In recent years,as China's rapid economic development,vocational and technical education has been gradually recognized by the society.As highly educated people,vocational and technical education graduate is an imp...In recent years,as China's rapid economic development,vocational and technical education has been gradually recognized by the society.As highly educated people,vocational and technical education graduate is an important force in the development of vocational education.But in reality,their employment orientation deviate from the trend of the profession and only a small part of them do related work after graducation.Combined with the current development status of vocational education,the article analysis the reasons of this problem and give policy recommendations,so as to create a good environment for vocational and technical education talented people.展开更多
In the present work,transparent and anti-fogging AlPO_(4)-5 films were prepared on glass substrates using a novel developed process.The process entails a simple in-situ sol–gel followed by vapor phase transport.The i...In the present work,transparent and anti-fogging AlPO_(4)-5 films were prepared on glass substrates using a novel developed process.The process entails a simple in-situ sol–gel followed by vapor phase transport.The in-situ sol–gel process was implemented by coating the precursor sols for the synthesis of AlPO4-5 on the glass substrates successively using the spin-coating method.The films and powders scribed from the films were characterized by X-Ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),scanning electron microscope(SEM),atomic force microscope(AFM),X-ray photoelectron spectroscopy and transmission electron microscope(TEM).The unique films were composed of oblique oriented nanoflake AlPO_(4)-5 crystals with the thickness of about 20 nm.The formation of nano-flake crystals can be ascribed to the high concentration of the precursors,resulting in the formation of a supersaturation system.The obtained films showed high antifogging performance due to the superhydrophilicity with a water contact angle of lower than 1.0°.The silicone oil contact angle was also low about 8.2°.In addition,heteroatom-substituted AlPO_(4)-5 films showing different colors can be obtained easily by simply adding transition metal ions in the phosphate acid solution during the preparation that can extend the application of the method for different coating demand.展开更多
A new approach to synthesize liquid crystalline polymer with narrow polydispersity index（PDI） was developed.Photopolymerization of 4-cyanophenyl-4＇-（6-acryloyloxyhexyloxy）benzoate（RM23） in nematic liquid crysta...A new approach to synthesize liquid crystalline polymer with narrow polydispersity index（PDI） was developed.Photopolymerization of 4-cyanophenyl-4＇-（6-acryloyloxyhexyloxy）benzoate（RM23） in nematic liquid crystals with macroscopic orientation was studied.The effects of the monomer concentration on the molecular weight and PDI of the resulting polymers were studied through gel permeation chromatography（GPC） and polarized optical microscopy.The low PDI of 1.19 and 1.22 was obtained in the reverse and normal modes,respectively.The PDI and molecular weight increased with monomer concentration.展开更多
With the development of China’s economy,the demand for English talents are also gradually increasing.Flexible use of English skills is the basic quality that college students in various vocational colleges should hav...With the development of China’s economy,the demand for English talents are also gradually increasing.Flexible use of English skills is the basic quality that college students in various vocational colleges should have at present,it is also the key to the successful employment of graduates in vocational colleges,and facing the current severe employment form,vocational colleges should take employment as the guide,and deeply explore the problems encountered in English teaching,through the adoption of targeted teaching measures to increase the reform of English teaching,so as to improve the students’English level and practical application ability,which is conducive to the students occupy a strong core competitiveness in the huge employment market.This paper will take the employment as the basic guide,focusing on the reform measures of English teaching in vocational colleges.展开更多
文摘In recent years,as China's rapid economic development,vocational and technical education has been gradually recognized by the society.As highly educated people,vocational and technical education graduate is an important force in the development of vocational education.But in reality,their employment orientation deviate from the trend of the profession and only a small part of them do related work after graducation.Combined with the current development status of vocational education,the article analysis the reasons of this problem and give policy recommendations,so as to create a good environment for vocational and technical education talented people.
基金financial support from the Key University Science Research Project of Jiangsu Province(16KJA430007)Opening Topic of Key Laboratory of Attapulgite Resources Utilization in Jiangsu Province(HPK201804)Opening Topic of National Local Joint Engineering Research Center for Deep Utilization of Mineral and Salt Resources(SF201804)。
文摘In the present work,transparent and anti-fogging AlPO_(4)-5 films were prepared on glass substrates using a novel developed process.The process entails a simple in-situ sol–gel followed by vapor phase transport.The in-situ sol–gel process was implemented by coating the precursor sols for the synthesis of AlPO4-5 on the glass substrates successively using the spin-coating method.The films and powders scribed from the films were characterized by X-Ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),scanning electron microscope(SEM),atomic force microscope(AFM),X-ray photoelectron spectroscopy and transmission electron microscope(TEM).The unique films were composed of oblique oriented nanoflake AlPO_(4)-5 crystals with the thickness of about 20 nm.The formation of nano-flake crystals can be ascribed to the high concentration of the precursors,resulting in the formation of a supersaturation system.The obtained films showed high antifogging performance due to the superhydrophilicity with a water contact angle of lower than 1.0°.The silicone oil contact angle was also low about 8.2°.In addition,heteroatom-substituted AlPO_(4)-5 films showing different colors can be obtained easily by simply adding transition metal ions in the phosphate acid solution during the preparation that can extend the application of the method for different coating demand.
基金The authors are grateful to NSF of China(No.50703013)Independent Innovative Position of Hubei Province for financial support of this work
文摘A new approach to synthesize liquid crystalline polymer with narrow polydispersity index（PDI） was developed.Photopolymerization of 4-cyanophenyl-4＇-（6-acryloyloxyhexyloxy）benzoate（RM23） in nematic liquid crystals with macroscopic orientation was studied.The effects of the monomer concentration on the molecular weight and PDI of the resulting polymers were studied through gel permeation chromatography（GPC） and polarized optical microscopy.The low PDI of 1.19 and 1.22 was obtained in the reverse and normal modes,respectively.The PDI and molecular weight increased with monomer concentration.
文摘With the development of China’s economy,the demand for English talents are also gradually increasing.Flexible use of English skills is the basic quality that college students in various vocational colleges should have at present,it is also the key to the successful employment of graduates in vocational colleges,and facing the current severe employment form,vocational colleges should take employment as the guide,and deeply explore the problems encountered in English teaching,through the adoption of targeted teaching measures to increase the reform of English teaching,so as to improve the students’English level and practical application ability,which is conducive to the students occupy a strong core competitiveness in the huge employment market.This paper will take the employment as the basic guide,focusing on the reform measures of English teaching in vocational colleges.
