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bone     
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    Experimental studies on anti-infective reconstituted bone xenograft and its preliminary clinical use
    抗感染重组合异种系列实验研究及初步临床应用
短句来源
    The Preparation of the Cuttlebone-transformed Hydroxyapatite (CBHA) and the Basic Studies on Its Application as the Scaffold in Bone Tissue-engineering
    乌贼转化羟基磷灰石材料(CBHA)的制备及其作为组织工程支架材料的应用基础研究
短句来源
    The Experimental Studies in Reparation of the Segmental Bone Defects with Tissue Engineering Technology
    利用组织工程技术修复长节段性缺损的实验研究
短句来源
    Studies on the New Type Bio-composites of Calcium Phosphate System for Bone Prosthesis
    磷酸钙系新型修复复合材料的研究
短句来源
    The Preparation of Multiphasic Calcium Phosphate Ceramic Transformed by Ostrich Bone and the Basic Studies on Its Application as the Scaffold in Bone Tissue Engineering
    鸵鸟转化多相钙磷陶瓷制备及用于组织工程支架材料基础研究
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  骨骼
    Biomechanics and Ultrastructure of Bone in Ovariectomized Rats
    雌性大鼠卵巢切除后骨骼生物力学研究和超微结构观察
短句来源
    Rapid Prototyping and Its Application in Bone's Three Dimensional Reconstruction
    快速成型技术及其在骨骼三维重构中的应用
短句来源
    An Investigation of Mechanical Properties of Human Bone
    人体骨骼力学特性探讨
短句来源
    The finite analysis of adaptive remodeling of bone
    给定荷载下的骨骼重建的有限元分析
短句来源
    Research on RP-oriented bone CT image processing
    面向RP的骨骼CT图像处理技术研究
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  骨的
    The Preparation of, and Experimental Study on Compound Bioactive Artificial Bone(CBAB)
    复合型生物活性人工骨的研制和实验研究
短句来源
    The Biocompatibility of Nacre Artificial Bone and Application in the Spinal Fusion
    珍珠层可降解人工骨的生物相容性及其在脊柱融合中的应用
短句来源
    The Solid-Liquid Two-Phase Theory of Cancellous Bone and It's Application
    松质骨的固——液二相理论及其应用
短句来源
    Study on Optimized Screening Conditions for Immediate Construction of Tissue-engineered Bone and Mechanism of eNOS
    快速构建组织工程化骨的条件优选及eNOS对其作用机制的研究
短句来源
    Experimental Study of Plastic Engineered Bone
    可塑形组织工程骨的实验研究
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  骨组织
    The Preparation of the Cuttlebone-transformed Hydroxyapatite (CBHA) and the Basic Studies on Its Application as the Scaffold in Bone Tissue-engineering
    乌贼骨转化羟基磷灰石材料(CBHA)的制备及其作为骨组织工程支架材料的应用基础研究
短句来源
    The Preparation of Multiphasic Calcium Phosphate Ceramic Transformed by Ostrich Bone and the Basic Studies on Its Application as the Scaffold in Bone Tissue Engineering
    鸵鸟骨转化多相钙磷陶瓷制备及用于骨组织工程支架材料基础研究
短句来源
    Experimental Study on the Stress and Remodeling Adaptation of Vivo Bone Tissue and Its Biological Model
    活骨组织应力与重建适应实验及其生物模型研究
短句来源
    The Studies of Application Platelet Rich Plasma to Bone Tissue Engineering
    富含血小板血浆应用于骨组织工程的研究
短句来源
    The Experimental Study of the Adipose Mesenchymal Stem Cells as the Seeding Cells of Bone Tissue Engineering
    脂肪间充质干细胞作为骨组织工程种子细胞的实验研究
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      bone
    Biomimetic strengthening polylactide scaffold materials for bone tissue engineering
          
    The novel composite mainly consists of nano-hydroxyapatite (n-HA), which is the main inorganic content in natural bone tissue for the PLA.
          
    The crystal degree of the n-HA in the composite is low and the crystal size is very small, which is similar to that of natural bone.
          
    The biomimetic three-dimensional porous composite can serve as a kind of excellent scaffold material for bone tissue engineering because of its microstructure and properties.
          
    The effects of hematopoietic stem/progenitor cells (HSPCs) expanded in the two step coculture with human bone marrow mesenchymal stem cells (hMSCs) on the hematopoietic reconstruction of irradiated NOD/SCID mice were studied.
          
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    Porous titanium is a kind of new biomaterial. After being implanted into the bone, the ingrowth of the bone was demonstrated. This ingrowth of bone tissuse was thought to be beneficial to fixation of a prosthesis and filling of a bone cavity.In this study, the porous sample was abtained from sintered amorphous titanium powder, with the mean size of pores larger than 150μ in diameter, and the porosity in the range of 45-47%. It was implanted into the femurs of rabbits and dogs, and specimons...

    Porous titanium is a kind of new biomaterial. After being implanted into the bone, the ingrowth of the bone was demonstrated. This ingrowth of bone tissuse was thought to be beneficial to fixation of a prosthesis and filling of a bone cavity.In this study, the porous sample was abtained from sintered amorphous titanium powder, with the mean size of pores larger than 150μ in diameter, and the porosity in the range of 45-47%. It was implanted into the femurs of rabbits and dogs, and specimons were taken for examination 2, 4, 6 and 12 weeks after operation.It was shown that the shear strength of the samples at the implant bone surface was 7.51kg/cm2 2 weeks after surgery. It was demonstrated that bone tissue had begun to grow into the meshwork 2 weeks after surgery, and deeper penetration was seen after 4 weeks. Scanning electron microscopy was done to show the appearance of bony growth into the meshwork. Bony growth was verified by x-ray diffraction scan analysis for calcium. Bone ingrowth could be seen in the majority of the interstices of the meshwork 12 weeks after surgery. Bone lacuna and tubules could be seen when stained with silver nitrate. The deepest penetration of bone ingrowth was 1400μ. There was no obvious tissue reaction or formation of fibrous membrane.The use of the porous material may help to prevent loosening of a prosthesis. It is believed that porous titanium we used possesses the characteristics that a porous material should possess. Further research should be done to ascertain its clinical usefulness.

    本实验系将无定形粉末烧结体多孔钛植入兔和狗的股骨内,术后定期采取标本,测定骨质与多孔钛界面结合力,对骨磨片酸性复红染色进行光学显微镜检查及扫描电镜观察骨质长入情况。 结果试样与骨质界面结合力达7.51kg/cm~2,骨质长入孔隙,深度1,400μm,扫描电镜显示骨质长入,钙的K_αX线照象证实为钙化的骨质。未发现明显的组织反应和包膜形成。证明国产多孔钛生物相容性良好,具有多孔材料特点,可作为进一步研究应用的基础。

    The mechanical character of human skull structure (HSS) is the mechanical response for the complete HSS. It is very important in studies on injury mechanism of the head and its protection. This paper calculated the mechanical responses of the loadbearing human skull on the frontal、parietal、occipital and temporal bones respectively by the finite element method and electrical measurement. Stress distribution and maximum stress active region were determined and the prominent locations to be protected were...

    The mechanical character of human skull structure (HSS) is the mechanical response for the complete HSS. It is very important in studies on injury mechanism of the head and its protection. This paper calculated the mechanical responses of the loadbearing human skull on the frontal、parietal、occipital and temporal bones respectively by the finite element method and electrical measurement. Stress distribution and maximum stress active region were determined and the prominent locations to be protected were suggested. The HSS dynamic characters, free-running frequency、viscous-damping coefficient and vibration shape et, were measured and calculated by the finite element method. The calculated and measured results shown good agreement. The results indicated that HSS belongs to the type of small damped structure showing marked elastic changes and very small viscosity variations in small defermation. It can therefore be considered as an elastic damped thin shell structure in dynamic analysis.

    本文采用有限元方法计算了在人颅骨的额、顶、枕和颞骨区域承受静载荷时力学响应,并做了电测试验。给出了各工况下的应力分布规律和最大应力作用区域。从力学的角度提出了重点防护部位。对人颅骨结构的动力特性,包括固有频率、粘滞阻尼系数、振型等,进行了有限元分析和实验测定。计算和实测结果相比较仅差2.8%,表现出良好的一致性。结果表明人颅骨结构属于小阻尼结构。在小变形情况下,主要表现出弹性,但粘性影响很小,因此在进行动力分析时完全可以把人颅骨抽象成弹性阻尼象薄壳结构。

    The article intruduced a new measurement system, The present data showed that (1) a certain electric potential gradiant existed on the surfaces of rabbit tibia. The epiphyeal plate region near the knee appeared to be electronegative and gradully turned to be electropositive in the midshaft. (2) Separation midshaft from the body did not affect curve pattern immediately. ( 3 ) Soft tissue especially muscle injury may change the curve pattern of electrical distribution. ( 4 )No similar specific electrical distribution...

    The article intruduced a new measurement system, The present data showed that (1) a certain electric potential gradiant existed on the surfaces of rabbit tibia. The epiphyeal plate region near the knee appeared to be electronegative and gradully turned to be electropositive in the midshaft. (2) Separation midshaft from the body did not affect curve pattern immediately. ( 3 ) Soft tissue especially muscle injury may change the curve pattern of electrical distribution. ( 4 )No similar specific electrical distribution was demonstrated on the moist bone surfaces outside the body.

    本文介绍了一种新的骨电信号测试系统。测量结果表明:1.在兔胫骨表面存在着由近膝的骺板附近至骨干由负向正的直流电位梯度;2.骨骼离体后片刻电位梯度无明显变化;3.肌肉等软组织损伤会使骨的生物电位向正值改变。在损伤处达正电位峰值;4.湿骨表面不存在这种电位梯度。

     
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