模糊综合评判在肝脏病变中的应用

试用模糊数学的原理和方法，对52例慢性肝炎病变进行多层次多因素综合评价，结果与病理学家诊断相一致。 为临床病理综合评价病变提供了简便、准确、合理而全面的科学方法。     

动物界十大同性恋

雌猕猴；秘鲁岩鸟；长颈鹿；美洲野牛；宽吻海豚；黑猩猩；非洲雌水羚；黑天鹅；雄海象；灰鲸；     

海豚抚慰你受伤的心灵

让受过专门训练的狗和猫陪伴孤独的老人,把一只能捧在手里的小荷兰鼠带给因患病而精神忧郁的儿童, 给他们些许抚慰,水簇箱内鱼儿自由自在的游弋让工作压力过大的经理们疲劳顿消……在国外,现在越来越多的家庭宠物作为人类的伴侣发挥着不可低估的作用。在以色列就有这样一群“海豚医生”,它们的出现使那些患上绝症或因残疾而心存     

小熊猫肝脏和胆囊的解剖研究

对小熊猫的肝脏和胆囊进行了解剖研究,小熊猫肝脏分为右叶、叶叶和左叶。右叶包括在右外叶、右中叶和右内叶。左叶包括左内叶、左外叶。中叶包括方叶和尾叶,方叶小,尾叶的乳状突粗大。胆囊位于右内叶或右内叶与方叶形成的胆囊窝内,胆囊管有直管和曲管两种类型。肝内结缔组织少,肝小叶分界极不明显。肝细胞呈多边形,具大而圆的细胞核,核仁明显,并将小熊猫与大熊猫的肝脏和胆囊作了比较研究。     

机器海豚的机构设计与运动控制

研制了一种装配有机械鳍肢的新型仿生机器海豚系统。根据海豚典型的背腹式推进的特点,提出一种工程化的推进模型。机器海豚的运动被建模为三节的摆动运动：刚性头部、弹性软体和摆动的尾叶。用一个串联的、多关节的上下摆动机构来实现背腹式运动,用左右摆动的转弯机构和两自由度运动的鳍肢机构来实现机动运动。在此基础上,开发研制了机器海豚样机。实验结果验证了背腹式游动在推进和机动运动中的有效性。     

Information extraction and CT reconstruction of liver images based on diffraction enhanced imaging

X-ray phase-contrast imaging (PCI) is a new emerging imaging technique that generates a high spatial resolution and high contrast of biological soft tissues compared to conventional radiography. Herein a biomedical application of diffraction enhanced imaging (DEI) is presented. As one of the PCI methods, DEI derives contrast from many different kinds of sample information, such as the sample's X-ray absorption, refraction gradient and ultra-small-angle X-ray scattering (USAXS) properties, and the sample information is expressed by three parametric images. Combined with computed tomography (CT), DEI-CT can produce 3D volumetric images of the sample and can be used for investigating micro-structures of biomedical samples. Our DEI experiments for liver samples were implemented at the topography station of Beijing Synchrotron Radiation Facility (BSRF). The results show that by using our provided information extraction method and DEI-CT reconstruction approach, the obtained parametric images clearly display the inner structures of liver tissues and the morphology of blood vessels. Furthermore, the reconstructed 3D view of the liver blood vessels exhibits the micro blood vessels whose minimum diameter is on the order of about tens of microns, much better than its conventional CT reconstruction at a millimeter resolution. In conclusion, both the information extraction method and DEI-CT have the potential for use in biomedical micro-structures analysis.     

罕见的海洋掠食

水下摄影师亚历山大·萨弗诺维拍摄的一组海豚群捕食沙丁鱼群的壮观照片,曾获得了莫斯科国际潜水摄影大腱——“金色海豚”的最高奖项。每年6月份,许多海豚都聚集到南非海域,它们和其他海洋猎食者一样,期待着美咪的沙丁鱼鱼群的出现,就如同在食章排队,等待领取食物的进餐者。     

线粒体热化学研究Ⅴ.鳙鱼肝脏线粒体代谢热动力学

用微量热法研究了不同温度下鳙鱼肝脏线粒体代谢的产热曲线,建立了热动力学方程,得到了线粒体在活性增长期的增长速率常数ｋ,平均比增长速率ｋ／ｍ等．实验结果表明,同一动物的同一器官线粒体,其不同温度下的产热曲线的形状相同,反映了线粒体的固有特征;不同温度下线粒体代谢各阶段的时间不同,其单位线粒体产热量亦不同