贫铀
- 【电力】depleted uranium
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作为对比样的贫铀表面Al涂层则表现为粘着磨损行为,抗磨损性差。讨论了贫铀表面涂层的腐蚀和磨损行为。
The corrosion and abrasion behaviors of all coatings are discussed .
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Al2O3/Al复合涂层对贫铀的保护性能研究
Protection of Al_2O_3 / Al Multi-layer Coatings for Depleted Uranium
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利用离子注入方法,将CO2气体离解后的离子,在不同能量、束流下注入贫铀表面。
Decomposed CO2 gas is implanted to uranium at different energy , beam current and temperature .
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方法:采用不同剂量贫铀颗粒气管灌注大鼠3个月后,观察大鼠皮层及海马结构各区SS阳性神经元形态和数目的变化情况。
Methods : Rats were exposed to different doses of depleted uranium particles through intratracheal instillation .
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从富集铀工厂获得的贫铀呈粉末状,添加0.75%钛后制成DU合金。
Powder DU provided by uranium enrichment factory is turned into alloy after adding 0.75 % titanium .
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目的研究贫铀(DU)模拟撞击产生气溶胶的理化特性。
Objective To investigate the physical and chemical characteristics of depleted uranium ( DU ) aerosol formed by simulated impact .
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利用扫描电镜、X射线能谱仪及电化学测试技术对贫铀表面脉冲电镀镍层的腐蚀机理进行了研究。
Corrosion mechanism of nickel deposit on depleted uranium surface prepared by pulse plating was studied by scanning electron microscope ( SEM ), X-ray energy dispersion spectroscope ( EDS ) and electrochemical technology .
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目的通过研究贫铀(depleteduranium,DU)颗粒气管灌注大鼠肺中的诱导型一氧化氮合酶(iNOS)基因表达的变化,揭示DU对肺组织的毒性作用机制。
Objective To explore the changes of inducible nitric oxide synthase ( iNOS ) in lung of rats instilled with depleted uranium ( DU ) particles .
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结论:贫铀污染能引起大鼠皮层和海马结构SS阳性神经元数目减少,并可能通过此途径引起脑功能障碍。
Conclusion : Depleted uranium can significantly decrease the number of somatostatin positive neurons in cortex and hippocampus of rats , which may result in brain disability .
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采用盐雾腐蚀和磨损试验考核,结合SEM/EDS和XRD表征,分析了贫铀表面Al2O3/Al复合涂层的保护性能。
Protection of Al2O3 / Al multi-layer coatings for depleted uranium was investigated by using a combination of 5 % NaCI salt fog and abrasion test with SEM / EDS and XRD profiles .
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目的观察睡眠剥夺(Sleepdeprivation,SD)复合贫铀(depleteduranium,DU)污删对大鼠的行为学及皮层一氧化氮合酶(NOS)的影响。
Objective To explore the effects of sleep deprivation ( SD ) combined with exposure to depleted uranium ( DU ) on the behaviors and cortical neuronal nitric oxide synthase ( NOS ) in rats .
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贫铀中主要有三种铀同位素:238U、235U和234U,主要成分是238U,含量大于99.7%。
It contains three uranium isotope : 238U ( > 99.7 % )、 235U and 234U .
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采用变角度XPS(X射线光电子谱)技术研究了贫铀的初期氧化过程,获取了金属态贫铀表面U4f和O1s谱峰以及价带的XPS谱。
The angle resolved X-ray photoelectron spectra ( ARXPS ) were used to study the initial oxidation process . In the study , the U_ 4f , O_ 1s and valence band XPS peaks of depleted uranium were obtained .
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目的:探讨大鼠吸入贫铀(DU)气溶胶后肺组织病理和形态计量学改变,为贫铀武器损伤及其医学防护提供线索。
Objective : To investigate the pathological and morphometric alteration of rat lung after inhaling depleted uranium ( DU ) aerosol in order to provide certain means for protecting health of human from DU weapon induced harmfulness .
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目的:观察贫铀(DU)对体外培养细胞(BEAS-2B细胞)的损伤效应及二甲基亚砜(DMSO)的保护作用,并对可能的机制进行探索。
Objective : To investigate toxicity of depleted uranium ( DU ) on cultured human bronchial epithelial cells ( BEAS-2B ) and its protection by dimethyl sulfoxide ( DMSO ) .
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方法不同剂量贫铀颗粒气管灌注后3个月,采用小平台水环境法(flowerpot)建立大鼠SD模型,观察大鼠SD72h后Y迷宫正确百分率及大脑皮层NOS数目变化情况。
Methods SD of Wistar rats was induced by employing flower pot 3 months after they were exposed to different doses of DU particles by means of intratracheal instillation . The accuracy rate of Y-labyrinth experiment and number of NOS positive cortical neurons were observed after 72 h of SD .
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但中、高剂量组F0和F1代的精子畸形率、骨髓细胞微核率和彗星细胞率均增加(P<0.01),并与摄入贫铀的剂量和摄入时间呈一定的相关关系。
But the deformity rate of rat sperm , the micronucleus rate of bone marrow cells , Comet tail length and percentage of tail DNA increased in F_0 and F_1 generations of both medium-dose and high-dose groups ( P < 0.01 ) .
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由于具有良好的力学性能以及无放射性污染的特点,钨基高密度合金(WHAs)有望取代贫铀合金作为穿甲弹的弹芯材料。
The tungsten heavy alloys ( WHAs ) are expected to replace the depleted uranium penetrator materials due to their excellent mechanical properties and free of radioactive contamination .
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贫铀的细胞毒性口气清新人人亲
The Cytotoxic Effect of Depleted Uranium The tone is clear dry
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贫铀弹击中坦克致下风方向人员健康风险
Health risk assessment for personnels in downwind when DU hit tanks
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贫铀防护γ射线探伤装置
Gamma-Ray Radiographic Equipment for Nondestructive Testing Using the Depleted Uranium Shielding
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贫铀表面脉冲电镀镍层的腐蚀机理研究
Corrosion Mechanism of Pulse Plated Nickel Deposit on Depleted Uranium Surface
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贫铀气溶胶的理化特性研究
The research of physical and chemical properties of DU aerosol
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战场贫铀弹撞击气溶胶特性研究现状
Status on the research of properties of DU aerosol formed by impact
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长期摄入含贫铀的饲料对雄性大鼠的遗传毒性研究
Genotoxicity of chronic feeding of depleted uranium in male rats
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某贫铀花岗岩体中拍成矿的地球化学研究
A geochemical research on uranium metallization in a uranium-barren granite
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贫铀对细胞存活的影响及基因突变作用
Effects of depleted uranium on cell survival and gene mutation
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大鼠吸入贫铀气溶胶后肾组织病理和形态计量学改变
Histopathological and morphometric alterations of rat kidneys by inhaled depleted uranium aerosol
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铀在植入贫铀片和取片大鼠体内的动态变化和分布
Distribution of uranium in rats with implanted and removed depleted uranium fragments
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贫铀的细胞毒性汽油机稀薄混合气燃烧
The Cytotoxic Effect of Depleted Uranium Lean Mixture Combustion in Gasoline Engine