材料科学

College of Materials Science and Technology, Nanjing University of Aeronautic and

南京航空航天大学材料科学与技术学院，江苏南京 210016

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

北京航空航天大学材料科学与工程学院，北京 100083

With the development of quantum mechanics and solid state physics, materials design by agency of computation aid has been the trend to materials science.

随着量子力学、固体物理学、材料科学的发展，借助于计算机对材料进行设计已经成为材料科学发展的趋势。

"application of computer in materials science" is an intercross course which forms based on the development of computer and materials science.

《计算机在材料科学中的应用》是随着计算机和材料科学发展而形成的一门交叉课程，具有较强的综合性和实践性。

"Application of computer in materials science" is an intercross course which forms based on the development of computer and materials science. It is an integrated and practical course.

《计算机在材料科学中的应用》是随着计算机和材料科学发展而形成的一门交叉课程，具有较强的综合性和实践性。

The composition, crystal shape, morphology, magnetic characteristic and thermal stability of the samples were characterized by powder X-ray diffraction, transmission electron microscopy, scanning electron microscopy, vibrating sample magnetometry and thermogravimetric analysis, respectively.

张佳 大连理工大学材料科学与工程学院，大连 116085刘顺华大连理工大学材料科学与工程学院，大连 116085冀志江中国建筑材料科学研究总院，北京 100024采用水热合成法，以(NH4)2S2O8作氧化剂，以MnSO4·H2O为锰源，制备了自生核壳结构MnO2粉体。

With the development of the computer technology and theory of micromechanics, it is expected that materials design can be completed in a much more micro level. Due to this expectation, the computational materials science has been rapidly developed and becomes one of the most important directions in the field of materials science.

随着计算机技术的迅速发展以及微观力学研究方法和理论的成熟，人们迫切期望材料的设计能够达到更微观的程度，计算材料科学由此而迅速崛起，目前已成为材料科学发展的重要方向之一。

Nanomaterials have many new characterizes which different from the normal materials for their small size, big surface area ratio and quanta dimension domino effect, for examples, the metal with good conductor will be turned into nonmetal when the size is reduced tonanometer levels; the resistance of originally nonconductor will be descended greatly when its size is reduced several nanometers or so, and loss the nonconductor property; the general solid is steady under certain conditions, while under nanometer conditions, the capabilities will be effected greatly by the granule sizes, the newness characteristics made nanomaterials have great appliance foreground on catalyze, optics, and industry produce and so on, therefore the nanomaterials have been the hotspot for materials science, chemistry science and so on.

纳米材料由于尺寸小、比表面积大和量子尺寸效应使它具有不同于常规固体材料的新的特征，如原来是良导体的金属，当尺寸减小到纳米量级时就变成非金属型；原来是绝缘体的物质，当尺寸减小到几纳米或几十纳米时电阻大大下降，失去了绝缘体特性；常规固体在一定条件下物理性能是稳定的，在纳米状态下，颗粒尺寸对性能产生强烈的影响等等，这些新奇的特点使得纳米材料在催化、光学、工业生产等各个方面都有着广阔的应用前景，因此，纳米材料目前已经成为材料科学、物理学及化学等学科的前沿热点。1990年7月在美国巴尔基摩召开了国际第一届纳米科学技术会议，正式把纳米材料科学作为材料科学的一个新的分支公布于世。

BACKGROUND: The injectable and shapable tissue engineering bone with osteoconduction and osteoinduction nature can be constructed by combining nano-hydroxyapatite, collagen and calcium alginate according to the bionics.

南方医科大学珠江医院骨科中心；南方医科大学珠江医院骨科中心；南方医科大学珠江医院骨科中心；南方医科大学珠江医院骨科中心；南方医科大学珠江医院骨科中心；南方医科大学珠江医院骨科中心；清华大学材料科学与工程系；清华大学材料科学与工程系

For the x=0.03 sample, both the minimum of sound velocity and attenuation peaks shift to a lower temperature. The results indicate that the charge ordering and CE-type AFM state in Nd0.5Ca0.5MnO3 are both partially suppressed by replacing Mn with Al.

中国科学技术大学材料科学与工程系；中国科学技术大学材料科学与工程系；中国科学技术大学材料科学与工程系；中国科学技术大学材料科学与工程系合肥 230026；合肥 230026；合肥 230026；合肥 230026

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。