查询词典 nacre

Secondly, we conducted an in vitro experiment to simulate the growth of aragonite on nacre surface via the vapor diffusion method in the absence of any other additional additives.

其次，本文采用传统的气相扩散方法，在没有任何添加剂的溶液中，进行了珍珠质基底上CaCO_3晶体的体外沉积实验。

The sun is setting fast. The colors die. They shift from purple to dried blood, from nacre to bister, from cool dead grays to pigeon shit.

太阳很快要落下去了，天空中的色彩也消失了，紫色变成干血色，青贝色变成褐色，黯淡的灰色变成鸽粪色。

The immunochemical study showed that CaLP may locate around the prisms and in the organic layer sandwiched between the prismatic layer and the nacre.

贝壳原位免疫实验显示，CaLP可能分布在贝壳棱柱层的棱柱周围以及棱柱层和珍珠层之间的有机夹层中。

Nacre, or mother-of-pearl, a main structural material forming the inner layer of mollusc shells, displays excellent mechanical properties. It became a hot research topic recently in biomimetic design and synthesis for advanced engineering materials.

珍珠母(nacre或mother-of-pearl)是软体动物贝壳内层的主要结构材料，具有优异的力学性能，已成为当前先进工程材料仿生设计和制备的研究热点。

Biomimetic laminated composite was fabricated by mimicking the cyclical matrix control process to form the highly structured Mollusca nacre, the structure and growth period of the biomimetic laminated obtained was similar to Mollusca nacre, it can be considered as a model for the research of the formation of Mollusca nacre.

获得的该复合材料与珍珠的结构和生长周期与珍珠具有一定的相似性，为研究珍珠的形成过程提供了参考模型，并通过研究珍珠的形成过程，掌握和了解珍珠形成的各种影响因素。

Elastic modulus test of nacre is significant to understanding the behavior of nacre and the biomimetic designing of materials.

研究天然生物材料的组织结构特征与其性能之间的关系对于材料的仿生有重要意义。

In this paper, we summarize relevant studies on the microstructures, mechanical properties, and mechanical modeling of nacre. Problems in the study of nacre are pointed out and discussed briefly.

本文从珍珠母的微结构、实验研究以及力学模型3个方面对珍珠母的研究现状进行了概述，并指出目前研究中一些仍待解决的关键问题。

Microstructure of nacre is significant to understand the behavior of nacre and the biomimetic designing of materials.

本文利用扫描电镜原位观察了受拉伸载荷作用下珍珠层中裂纹的萌生及扩展方式，并结合SEM和TEM技术研究了贝壳珍珠层微观组织结构，探讨了裂纹扩展过程中的增韧机制。

The nacre shell also known as mother of pearl is made from crushed oyster shells which are rich in nacre, concholin and proteins.

贝壳珍珠层又称珍珠母，由富含珍珠层、concholin和蛋白质的牡砺壳碾碎而成。

The biomechanical tests showed that two kinds of artificial bones had not significant difference on compressive strength and Young\'s modulus(P＞0.05),while the flexural strength of nano-nacre artificial bone was less than the control group(P＜0.05).3.The results of CCK-8 showed that the difference were not significant in each group,the proliferation of osteoblast reached the peak at the 5th day;7 days after being co-cultured,the total protein content of study group was higher than control group and blank group(P＜0.05),while the difference between control group and blank group was not significantP＞0.05The difference of alkaline phosphatase activities among three groups was not significant(P＞0.05The SEM view showed that osteoblast attached and grew well in two kinds of artificial bone.4.X-ray photography showed that two kinds of powder started to degrade in 2 weeks;this phenomenon became more appear in 4 weeks,nano-nacre powder degraded faster than micron-nacre powder,while the hole shadow was easy to be found;in 8 weeks,all the femoral holes recovered and returned to normal bone mineral density in all groups.Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone grew fastest around the bone defect area in study group,while most slowly in blank groupP＜0.05 SEM(scanning electron microscope observation showed that nano-nacre powder degraded more quickly.The same result can be found through the demineralized sections morphometric analysis,and both of the composite artificial bones made from those two kinds of nacre powder had the good connection with the adjacent tissue in rats body without apparent inflammatory response.5.X-ray photography showed that rabbit\'s bone defects healed faster in study group since NNAB implanted than in control group since MNAB implanted.At 24 weeks after operation,bone density in radial defects had nearly accessed to the normal area,while lower in control group,and turned up nonunion in blank group;The checking of BMD showed that results in study group were higher than those in control group at 8,16 and 24 week(P＜0.05), and the difference between the BMD values in study group at 24 week and those in blank group was not significant(P＞0.05).The gross specimens showed satisfactory histocompatibility both in study group and in control group,with bone tissue growing from two sides into the center of implanted materials; Normal slices in HE stain and hard tissue grinding slices in Stevenel\'s blue/Van Geison\'s picro-fuchsin stain showed that the bone growth tendency was better in study group than that in control group,and the medullary cavity had been penetrated to the implanted materials in study group at 24 week;Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone in both groups grew fastest 8 weeks after surgery,while slow down at 16 week.

纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨分别与成骨细胞共培养后，其各时间点CCK-8法检测值与空白对照无显著差异(P＞0.05)，成骨细胞均在第5天达到增殖高峰期；培养7天后，实验组细胞蛋白含量高于对照组及空白组(P＜0.05)，后两者之间则无显著差异P＞0.05碱性磷酸酶活性在三组间均无显著差异(P＞0.05电镜下可见成骨细胞在两种人工骨上都有良好生长贴附能力。4.X-ray显示两种粉体在大鼠股骨骨洞植入第2周时都开始出现了降解，第4周时更为明显，纳米珍珠层粉较之微米珍珠层粉降解更快，而空白对照组骨洞阴影仍可见，至8周时，则所有组骨洞均己闭合修复，X-ray下已不可见原钻孔痕迹，恢复正常骨质密度；硬组织磨片四环素荧光双标记结果显示纳米珍珠层粉植入组较其余两组在骨缺损区周围新骨生长速度更快，空白组速度最慢P＜0.05电镜观察及常规脱钙切片亦可见到纳米粉体降解较快；由以上两种原材料制得的纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨在大鼠体内均与周围组织结合良好，无明显炎症反应。5.X-ray显示纳米珍珠层/消旋聚乳酸复合人工骨植入兔桡骨缺损区后其骨愈合速度较对照组微米珍珠层/消旋聚乳酸复合人工骨植入的快，至植入术后24周，实验组骨缺损区接近正常骨密度，对照组骨缺损区密度较低，空白组则呈现骨不连状态；骨密度测量结果显示术后8周、16周、24周实验组的骨密度值高于对照组(P＜0.05，24周实验组的骨密度值与术前所测得的正常值无显著性差异P＞0.05动物取材大体所见均显示组织相容性良好，骨组织逐渐由植入材料两端向中央生长；常规切片HE染色及硬组织磨片Stevenel\'s blue/Van Geison\'s picro-fuchsin联合染色均可见实验组骨缺损区长势优于对照组，至术后24周，实验组骨髓腔与材料已呈相交通状；硬组织磨片荧光显微镜下观察，两组材料在术后8周处于骨生长最快速时期，16周时速度开始减慢，术后4、8、16周时实验组的新骨生长速度均较对照组的快

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。