Learn all 26 letters of the alphabet with Blippi while he opens the ABC boxes with letters o...

Blippi helps children‘s understanding of the world and encourages vocabulary development. Blippi loves visiting exciting places such as children’s museums and the zoo! He loves singing, dancing,...

Blippi shows you the ice cream truck while making it educational. This compilation of educational videos for toddlers of Blippi videos will keep your child educated and entertained for 1.5 hours....

Come join me on adventures and learn new things as we make the world our playground. We'll go on incredible journeys to faraway places.

Blippi Wonders is an animated series that answers kids’ questions while encouraging laughter, fun, and adventure. Kids get to sing, play, dance, and learn about the world around them in …

异戊烯基焦磷酸是一种化学物质，固醇类或多 萜类化合物 生物合成的前体中间代谢物，由 甲羟戊酸 激活后脱羧而产生。 低温下为白色结晶固体，室温下为无色液体。 为游离基型引发剂，用作氯乙烯及其他单体聚合或共聚的低温引发剂。 异戊烯二磷酸是所有类萜化合物生物合成的前体。 一般认为 乙酰辅酶A 是合成途径的起始材料，通过一系列酶促反应而形成。 生物体内的 乙酰辅酶A 合成酶可以将醋酸盐转变为乙酰辅酶A，同时 糖酵解 、脂肪酸代谢也能形成乙酰辅酶A。 在乙 …

Blippi helps children‘s understanding of the world and encourages vocabulary development. Blippi loves visiting exciting places such as children’s museums and the zoo! He loves singing, dancing, playing and exploring. His contagious curiosity engages young viewers in learning adventures that help them both grow and develop.

Blippi is excited to play in the pool with friends, but needs to learn about important pool safety. Enjoy this compilation of the best Blippi episodes and educational videos for kids! For more Blippi videos and Blippi songs be sure to SUBSCRIBE to Blippi at Brand New Blippi Episodes Every Saturday! Website Facebook …

2017年7月2日 · 在等规聚丙烯（iPP）中制备的β晶体具有优良的韧性，目前，制备高浓度β晶体最高效便捷的方法是在制备体系中加入β成核剂（β-NA）。 但是，实际情况是，在iPP和β-NA的混合物中制备β晶体的条件（例如压力和流量）尚不清楚，因为压力和流量对β晶体的形成具有非常复杂的影响。 近日，四川大学李忠明教授和雷军教授等人，利用一种压力和剪切装置（PSD），研究了压力和流量对β晶体在iPP和β-NA混合物中形成的影响。 研究发现，当流场存在时，压力对β …

Busico等利用C2对称的锆催化剂催化合成了二嵌段共聚物PE-b-iPP。 实验结果表明，该催化剂通过β-氢消除，使链生长受限，结构简单，其中iPP嵌段被证明是显著有规立构的。