We fabricated a superhydrophobic modified ZnO/PVC nanocomposite cluster with antibacterial properties using the chemi-cal precipitation method and selected solvent/non-solvent(THF/ethanol)to PVC.The effects of ethanol content(47％,50％,53％,and 56％)on nanoco
High wear resistance,low cytotoxicity and excellent antibacterial properties are the basis for osseointegration of implant materials.Polyetheretherketone(PEEK)has been considered as a potential implant material due to its excellent biocom-patibility,natur
融合打造“品质教育”的改革实践,需要教师在进行道德与法治这门课程的教学中,要将繁琐的理论知识融入到现实生活中的实际案例,让学生在情感产生共鸣,使得学生真正地将道德与法治这门课程的知识来学以致用.
3D porous scaffold could provide suitable bone-like structure for cell adhesion and proliferation;however,surgical suffer-ing from large volume implantation is a great challenge for patients.In this study,a shape programmable porous poly(ε-caprolactone)(P
统编版小学语文教材的习作单元,是以培养习作能力为核心编排的单元,单元中的“精读课文”直接指向表达.怎样教好习作单元的“精读课文”,助力学生更好地完成单元习作任务?现以六年级下册第三单元《那个星期天》为例,谈谈习作单元精读课文的教学.
In this study,nano-biocomposites of polycaprolactone(PCL)as the matrix and different amounts of nanofluorapatite(nFA)(0,10,20 and 30 wt.％)as the reinforcement were prepared for possible scaffold fabrication using the fused filament fabrica-tion(FFF)3D pri
Porous structure in orthopedic prosthesis may reduce micromotion and increase the service life of implants.The purposes of this study were to compare the influence of the tibial stems with solid and porous structures in Total Knee Arthroplasty(TKA)on knee
Image fusion is a key technology in the field of digital image processing.In the present study,an effect-based pseudo color fusion model of infrared and visible images based on the rattlesnake vision imaging system(the rattlesnake bimodal cell fusion mech
叶圣陶老先生指出“多读书”的重要性,认为学生阅读不主动,读的书少,是导致学生语文知识学不好、作文写不好的重要原因.在语文主题学习过程中,围绕主题内容展开海量阅读教学,并通过海量阅读对语文知识进行学习和思考,能够锻炼学生的阅读能力,培养学生的语文核心素养.通过多读书,读好书,借助于海量阅读,使学生的阅读能力和写作能力得到有效的提高.通过分析语文主题学习之海量阅读策略,为学生开展海量阅读学习提供有效的参考和指引,使学生在阅读学习过程中,明确阅读的关键点,以切实有效地提升语文教学质量.
The Salp Swarm Algorithm(SSA)may have trouble in dropping into stagnation as a kind of swarm intelligence method.This paper developed an adaptive barebones salp swarm algorithm with quasi-oppositional-based learning to compensate for the above weakness ca