为了研究金黄色葡萄球菌诱导的乳腺炎中乳腺微动脉的变化,在东北细毛绵羊左侧的乳腺注射1 m L金黄色葡萄球菌(109 CFU/m L),而在右侧乳腺注射1 m L生理盐水作为对照。48 h后,屠宰东北细毛绵羊并取其乳腺做成血管铸型标本,对乳腺微动脉...为了研究金黄色葡萄球菌诱导的乳腺炎中乳腺微动脉的变化,在东北细毛绵羊左侧的乳腺注射1 m L金黄色葡萄球菌(109 CFU/m L),而在右侧乳腺注射1 m L生理盐水作为对照。48 h后,屠宰东北细毛绵羊并取其乳腺做成血管铸型标本,对乳腺微动脉进行管径测量和扫描电镜观察。结果显示,东北细毛绵羊左侧乳腺的微动脉内膜表面呈粗糙状和有球状细胞黏附现象,对球状细胞直径进行测量后,推测该细胞为中性粒细胞。结果表明,金黄色葡萄球菌诱导的乳腺炎能够改变乳腺微动脉的结构。展开更多
The Al/a-C nanocomposite thin films are synthesized on Si substrates using a dense plasma focus device with alu- minum fitted anode and operating with CH4/Ar admixture. X-ray diffractometer results confirm the formati...The Al/a-C nanocomposite thin films are synthesized on Si substrates using a dense plasma focus device with alu- minum fitted anode and operating with CH4/Ar admixture. X-ray diffractometer results confirm the formation of metallic crystalline Al phases using different numbers of focus shots. Raman analyses show the formation of D and G peaks for all thin film samples, confirming the presence of a-C in the nanocomposite thin films. The formation of Al/a-C nanocomposite thin films is further confirmed using X-ray photoelectron spectroscopy analysis. The scanning electron microscope results show that the deposited thin films consist of nanoparticles and their agglomerates. The sizes of th agglomerates increase with increasing numbers of focus deposition shots. The nanoindentation results show the variations in hardness and elastic modulus values of nanocomposite thin film with increasing the number of focus shots. Maximum values of hardness and elastic modulus of the composite thin film prepared using 20 focus shots are found to be about 10.7 GPa and 189.2 GPa, respectively.展开更多
文摘为了研究金黄色葡萄球菌诱导的乳腺炎中乳腺微动脉的变化,在东北细毛绵羊左侧的乳腺注射1 m L金黄色葡萄球菌(109 CFU/m L),而在右侧乳腺注射1 m L生理盐水作为对照。48 h后,屠宰东北细毛绵羊并取其乳腺做成血管铸型标本,对乳腺微动脉进行管径测量和扫描电镜观察。结果显示,东北细毛绵羊左侧乳腺的微动脉内膜表面呈粗糙状和有球状细胞黏附现象,对球状细胞直径进行测量后,推测该细胞为中性粒细胞。结果表明,金黄色葡萄球菌诱导的乳腺炎能够改变乳腺微动脉的结构。
文摘The Al/a-C nanocomposite thin films are synthesized on Si substrates using a dense plasma focus device with alu- minum fitted anode and operating with CH4/Ar admixture. X-ray diffractometer results confirm the formation of metallic crystalline Al phases using different numbers of focus shots. Raman analyses show the formation of D and G peaks for all thin film samples, confirming the presence of a-C in the nanocomposite thin films. The formation of Al/a-C nanocomposite thin films is further confirmed using X-ray photoelectron spectroscopy analysis. The scanning electron microscope results show that the deposited thin films consist of nanoparticles and their agglomerates. The sizes of th agglomerates increase with increasing numbers of focus deposition shots. The nanoindentation results show the variations in hardness and elastic modulus values of nanocomposite thin film with increasing the number of focus shots. Maximum values of hardness and elastic modulus of the composite thin film prepared using 20 focus shots are found to be about 10.7 GPa and 189.2 GPa, respectively.
