体密度

The treatment of CaCl〓 made the electron dense bigger in plastid during the early period of fruit development, while in the period of fruit rapid growth and fruit ripening stage, the amounts of amyloplast increased. On the other hands, the treatment of EGTA and LaCl〓 decreased the amounts of plastid or amyloplast, made the structure of plastid abnormal.

CaCl〓处理使前期果实细胞中质体上电子密度大，中后期则使造粉体数量增加，EGTA和LaCl〓处理减少了质体数量，使质体结构异常。

In present work, the coincidence Doppler broadening spectra of positron annihilation radiation of NiTi, NiAl alloys, single crystal of Si, and pure metals, such as Fe, Co, Al, Nb, Cu, Ni, Ti have been measured.

利用正电子寿命谱参数研究了NiTi合金马氏体转变及其奥氏体转变过程中的微观缺陷和电子密度的变化，从而揭示NiTi合金马氏体转变的微观机制。

Results Under optical lens positive products of ACP reaction were brown particles scattered in cyton and process;under electron lens its positive products were black precipitates with high electron density scattered in lysosome and Golgi bodies in different shapes,and often companied by linear lysosome and some cell organs.

结果光镜下可见 ACP 反应阳性产物为棕色颗粒，散在分布于神经元的胞体及突起内；电镜可见其阳性产物为电子密度高的黑色沉淀，分布于不同形状的溶酶体及高尔基体内，并常见线状溶酶体与一些细胞器相伴行。

The patients were recalled 6 months to 5years post operation. 8 cases healed with well face form,could masticate pap after denture restoration,without incision dehiscence or titaniumplate exposure. X -ray photographs showed no absorption of the transplanted bone, no image of lowdensity between titani-um plate and transplanted bone.

结果：钛板携带种植体植入下颌骨后切口一期愈合，6个月至5年随访，8例面部形态恢复良好，安装基台行义齿修复后可咀嚼软食，未见伤口裂开和钛板外露，X线拍片见种植体周围的植骨生存良好，植骨与种植体之间无低密度影

The structure of uncured mix and vulcanite, physical and chemical interaction between filler and matrix, mechanical property of composites were investigated It was found and explained that the compact relationship among bound rubber, cross-linkage density and physical property in mineral filler/silicone rubber composite In detail, BR〓, D〓(cross-linkage density using basic solvent as swell liquid) and module have direct relationship, because they all show chemical interaction between filler and matrix from different angles, respectively BR〓(bound rubber in toluene solvent), D〓(cross-linkage density using toluene solvent as swell liquid) and tensile strength have compact relationship also, because they all show total interaction from different angles, respectively

研究了未硫化胶和硫化胶的结构、填料与基体的物理化学作用、及这些结构和作用的表现形式，发现和解释矿物填料/硅橡胶复合材料中结合橡胶、交联密度与复合材料的力学性能密切关系。具体说，BR〓、D〓和弹性模量均从某个侧面反映复合材料中填料与基体间的化学作用，三者的关系比较密切：BR〓、D〓和抗拉强度均反映复合材料中填料与基体间总体相互作用，三者的关系比较密切。

In this paper, two assemblies of special test equipments have been designed and fabricated by authors in our laboratory: namely Catalyst Molding Process Analyzer and Catalyst Mechanical Process Tester. These new skills are developed for the dynamic studies on whole mold forming process and crushing process of Fe-Cr WGHS catalyst pellet. Based on the orthogonal experimental design, the effects of some factors during the forming process of solid catalyst, such as predensification proportion, calcination time, calcination temperature and content of graphite on the mechanical strength of catalyst pellets are systematically examined, and the molding conditions have been optimized. Based on the experimental data, the relationship between catalyst density and forming pressure are educed, and the physical significances of some related parameters are described. The parameter of macro scopic elastic moduls has been suggested to character the mechanical properties of molding catalyst. The effects of molding pressure on mechanical properties of catalyst pellets are discussed, and results show that there exists a optimal molding pressure for the ideal mechanical properties: when over-high or over-low pressure is applied, the specific surface area and side crushing strength of catalyst pellets will decreased. The "rebound effect" will be undermined by the unsuitable pressure maintain process, resulting in the apparent decrease of mechanical strength of catalyst pellets.

本研究通过自行设计制造的催化剂模压成型过程分析仪（Catalyst Molding Process Analyzer， CMPA）和催化剂力学性质测试仪（Catalyst Mechanical Properties Tester， CMPT），以Fe-Cr系高温变换催化剂片剂为研究对象，对成型过程和受压破碎过程提供了全过程动态研究的新手段；本研究利用正交实验设计方法考察了固体催化剂成型过程中诸因素（包含预密致比例、煅烧时间、煅烧温度和石墨含量等）对催化剂成型体强度的影响，并对成型条件进行了优化；根据实验结果，关联确定了固体催化剂成型过程中的密度－压力关系式，并对方程中诸因子的物理意义进行了描述；提出了一种利用宏观弹性模量来表征成型催化剂的力学性质的方法；研究讨论了成型压力对催化剂成型体强度性质的影响，结果表明：对于催化剂成型体的强度和比表面性质，成型压力存在着一个最佳值，过高的成型压力会导致比表面积和侧压强度的降低；不适当的成型压力的维持时间会破坏&压力回弹&作用，造成催化剂成型体的机械强度明显降低。

Results: SAH were presented real image of brain cistern and brain sulcus; Hemorrhage in the interhemispheric fissure cistern presented as a slightly widening hyperdense line; zigzag hyperdense line; elongation of hyperdense line within the anterior segment of the interhemispheric fissure, which was longer than 25mm or half the depth of the genu; thickening of the tentorial incisure margin.

结果：蛛网膜下腔出血可显示脑池、脑沟、脑裂呈高密度改变；纵裂池出血呈一稍宽线影；高密度&Z&字征；前纵裂池高密度线影延长或大于1／2胼胝体膝部深度或大于25mm；天幕缘切迹增厚。

Results: In the 13 cases, the CT diagnosis show that five cases of low-density lesions of Bilateral hepatolenticular, five cases of globus pallidus, one case of Bilateral hepatolenticular with corpus callosum, one cases of External capsule putamen, one case of Putamen with the caudate nucleus, three cases of low-density of Bilateral lobi frontalis and lobi parietalis, one case of unilateral putamen hemorrhage, three cases of cerebral atrophy.

目的 探讨双侧基底节区对称性低密度病变的CT诊断价值。方法回顾性分析肝豆状核变性5例、中毒性病变5例、Wernicke脑病2例、Huntington氏大舞蹈病1例的CT平扫表现及临床意义。结果 13例中，CT示双侧豆状核低密度5例、苍白球5例、双侧豆状核伴胼胝体1例、壳核伴外囊1例、壳核伴尾状核1例；双额顶叶低密度3例、单侧壳核出血1例、大脑萎缩3例。

The influence of key factors, including properties of parent metal, relative densities of truss core, an alternative core topology, heat treatment of sandwich panels and the influence of joining technique of truss core and panels on mechanical properties, are analyzed.

分析了基体金属的性能、芯体的相对密度、芯体的拓扑结构、夹芯板的热处理以及芯体和面板的连接方式因素对夹芯板力学性能的影响。

ACP is membrane-bounded, its formation is the result of the progressive coalescence of the smaller pigmented vesicles in vacuole and fully developed ACP is typically spherical and more deeply red-colored than the vacuole. In vacuole, ACP is high density and insoluble globule highly concentrated with anthocyanins. The emergence of ACP can provide intense coloration in the vacuole.

花色苷体由膜包裹，其形成是液泡中小的有色囊泡逐渐合并的结果，发育完全的花色苷体为典型的球状、具比液泡更深的红色；液泡里的花色苷体具高密度，呈现为含高浓度花色苷的不溶性小球；花色苷体的存在可导致液泡的强烈色彩。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。