论文部分内容阅读
[!--newstext--]
[!--title--]
【摘 要】
：
Self-healing hydrogels have attracted growing attention over the past decade due to their biomimetic structure,biocompatibility,as well as enhanced lifespan and reliability,thereby have been widely used in various biomedical,electrical and environmental e
【机 构】
：
Department of Chemical & Materials Engineering,University of Alberta,Edmonton,Alberta T6G 1H9,Canada
【出 处】
：
高分子科学（英文版）
【发表日期】
：
2021年10期
其他文献
利用高分辨率立体测绘卫星遥感影像进行地貌更新,因其覆盖面积大、更新周期短等优势,在中小比例尺地貌要素更新中具有极大的应用潜力。本文分别利用WorldView-2和资源三号卫星影像,探索基于高分辨率立体测绘卫星影像的中小比例尺地貌更新技术方案流程,并在不同的试验区开展试验验证。试验结果表明:本文方法能够满足1∶50 000比例尺地形图地貌更新精度要求,更新效率提升了约25%。
Photoinduced Reversible Solid-to-Liquid Transitions and Directional Photofluidization of Azobenzene-
Photoinduced reversible liquefaction and solidification of polymers enable processing and healing of polymers with light.Some azobenzene-containing polymers (azopolymers) exhibit two types of photoinduced liquefaction properties:photoinduced reversible so
The “solid-liquid” behavior of vitrimers have not been systematically investigated.Herein,a series of “solid-liquid” vitrimers bearing vanying contents of dynamic boronic ester bonds were synthesized via thiol-ene click reactions.These vitrimers allow for
[目的]建立具有非瞬时/瞬时脉冲收获与脉冲入侵的单种群模型.[方法]运用微分方程及频闪映射相关理论,得到了系统持续生存的条件.[结果]非瞬时脉冲收获率、瞬时脉冲收获率和脉冲入侵系数对系统持久起着重要的作用.[结论]为生物资源的管理提供一定的理论支持.
Oxime-urethane bond featuring with high reversibility even at room temperature and multiple reactivity is an emerging dynamic covalent bond,and has shown great potential for self-healing polymers,which are one of the most attractive development directions
The concept of self-healing that involves a built-in ability to heal in response to damage wherever and whenever it occurs in a material,analogous to the healing process in living organisms,has emerged a couple of decades ago.Driven primarily by the deman
[目的]为进一步对中国土蜂科(Scoliidae)昆虫种类进行系统分类研究.[方法]参考《动物学记录》(The Zoological Record)以及相关的种类记述文献,对土蜂科昆虫的系统地位、分类研究历史、生物学习性、经济意义等进行简述;同时整理土蜂科各属的种类数量及各种类在世界六大动物地理区系中的分布情况.[结果]目前土蜂科包括2个亚科2个族,共计44属560种220亚种,世界性分布,其中:1)分布于古北区的有12属66种39亚种,分别占世界种和亚种数量的11.78％,17.72％;2)分布于东洋区
[目的]研究Boussinesq系统弱解的存在唯一性以及强解的爆破准则.[方法]通过拟抛正规化方法建立Boussinesq系统在Sobolev空间Hs(R)×Hs-1 (R)(s≥1)中弱解的存在和唯一性,利用能量估计、输运方程理论等方法得到系统强解精确的爆破准则.[结果]首先得到了Boussinesq系统在Sobolev空间H s(R)×Hs-1(R)(s＞3/2)中强解的局部适定性,其次得到系统弱解在Sobolev空间Hs(R)×Hs-1(R)(s≥1)中的存在和唯一性,最后得到强解的爆破准则.[结论
We are delighted to present this special-themed issue of the Chinese Journal of Polymer Science (CJPS) devoted to the recent advances in self-healing polymeric materials.Self-healing has been recognized as one of the most attractive topics for advanced po
期刊
[目的]针对灾后救援问题,研究多直升机多任务含约束灾后救援任务分配问题,给出基于微粒群优化的问题求解方法,以获取各直升机的救援分配方案.考虑救援时间和直升机载荷有限,期望在有限的时间内救援最多的被困人员.[方法]首先,针对问题特性,考虑上述约束和目标,建立问题的数学模型;其次,采用改进的微粒群算法对所建模型进行求解,主要包括微粒的解码方法、微粒的位置和速度更新公式、全局极值更新方法以及局部搜索方法等.[结果]采用所提方法对不同的救援场景进行求解,并与自适应大规模邻域搜索算法进行了比较.[结论]仿真结果验证