用最大熵法进行沥青路面工程实例的结构可靠性分析     

时海涛 《林业科技情报》2010,42(4):65-67

结合工程实例以蒙特卡罗分析法为基本出发点,首先通过计算机根据弯沉和弯拉应力的功能函数来生成1000个功能函数的一个随机抽样,然后用大熵法拟合沥青路面的弯沉功能函数的密度函数,求出两种失效模式的失效概率。同时,把整个路段看作是一个由弯沉失效和弯拉应力失效的两种失效模式串联组成的网络系统,对整个系统进行了可靠性评估。  相似文献   

Tea pests in Southern India and their control     

G. N. Rao 《国际虫害防治杂志》2013,59(4):667-672

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Pharmacokinetics of Enrofloxacin and Its Metabolite Ciprofloxacin after Intramuscular Administration of Enrofloxacin in Goats     

Rao GS  Ramesh S  Ahmad AH  Tripathi HC  Sharma LD  Malik JK 《Veterinary research communications》2001,25(3):197-204

The pharmacokinetics of enrofloxacin and its active metabolite ciprofloxacin were investigated in goats after a single intramuscular administration of enrofloxacin at 2.5 mg/kg body weight. The plasma concentrations of enrofloxacin and ciprofloxacin were determined simultaneously by a HPLC method. The peak concentrations (C _max) of enrofloxacin (1.13 g/ml) and ciprofloxacin (0.24 g/ml) were observed at 0.8 and 1.2 h, respectively. The elimination half-life (t _1/2), volume of distribution (V _d(area)), total body clearance (Cl_B) and mean residence time (MRT) of enrofloxacin were 0.74 h, 1.42 L/kg, 1329 ml/h per kg and 1.54 h, respectively. The t _1/2, area under the plasma concentration–time curve (AUC) and the MRT of ciprofloxacin were 1.38 h, 0.74 g h/ml and 2.73 h, respectively. The metabolic conversion of enrofloxacin to ciprofloxacin was appreciable (36%) and the sum of the plasma concentrations of enrofloxacin and ciprofloxacin was maintained at or above 0.1 g/ml for up to 4 h. Enrofloxacin appears to be useful for the treatment of goat diseases associated with pathogens sensitive to this drug.  相似文献   

Conditional expression of harpin_Psscauses yeast cell death that shares features of cell death pathway with harpin_Pss-mediated plant hypersensitive response (HR)     

Appa Rao Podile  Hao-Jan Lin  Vanisree Staniforth  Paranthaman Sripriya  Long-Fang Oliver Chen  Teng-Yung Feng 《Physiological and Molecular Plant Pathology》2001,58(6):267

Conditional expression of harpin_Psscauses yeast cell death that shares features of cell death pathway with harpin_Pss-mediated plant hypersensitive response (HR).Pseudomonas syringae pv.syringae 61 hrp Z gene encodes harpin_Pss, a 34.7 kD extracellular protein that elicits a hypersensitive response (HR) in plants. Conditional expression of either full-length or truncated hrp Z sequences under the GAL1 promoter caused cell death in Saccharomyces cerevisiae Y187. Plating of pYEUT- hrp Z transformants on a medium containing galactose resulted in complete inhibition of colony formation, whereas their growth on a glucose-based medium was unaffected. Western blot analysis confirmed the expression of harpin_Pssin yeast cells transformed with pYEUT- hrp Z and grown in galactose-containing medium. A time-dependent decline in the percentage of trypan blue-excluding cells in cultures of pYEUT- hrp Z transformants was observed when cultured on galactose-containing medium. Similarly, the number of viable cells reduced to about 50% within 6 h. There were similarities in the harpin_Pss-mediated cell death in plants and yeast cell death (YCD). Galactose-induced cell death in pYEUT-hrp Z transformants of S. cerevisiae Y187 was suppressed by a protein kinase inhibitor K252a (10 μ M). The viability of pYEUT- hrp Z transformants was prolonged in the presence of 100 U ml⁻¹catalase suggesting a role for the oxidative burst in YCD that was further supported by the flow cytometric patterns of propidium iodide uptake by yeast cells. Overall, it appears that yeast provides a useful model system to understand the molecular mechanism of harpin_Pss-mediated cell death.  相似文献   

Bovine urolithiasis in Andhra Pradesh     

S V Rao  A Unmack 《Acta veterinaria Scandinavica》1973,14(3):410-420

Urinary calculi from three bulls, six bullocks and one male buffalo from the Guntur district were investigated. By chemical analysis only CO₃², Ca²⁺, Mg²⁺, and a trace of PO¾^- were found. X-ray analysis showed that all samples consisted of magnesian calcite with an atomic percentage of magnesium between 14.5 and 21.9. The size of the crystallites varied approx. from 200 to 400 Å.  相似文献   

The lesions of plasmocid [6-methoxy-8-(-3-diethylamino) quinoline] intoxication in the rabbit     

R R Rao  J B Henson 《The Indian veterinary journal》1968,45(2):109-114

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Recent advances in immunization against fowl spirochaetosis     

B R Gupta  S B Rao 《The Indian veterinary journal》1969,46(6):470-474

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Incidence and serotypes of bovine leptospira in Andhra Pradesh     

G S Rao  N S Surendran 《The Indian veterinary journal》1970,47(4):296-298

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Abortion associated with mycotic infection in a cow in Hyderabad     

Z Ahmed  G Pandurang  V Rao 《The Indian veterinary journal》1971,48(5):446-449

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Study of antibiotic sensitivity pattern of mastitis milk.     

T Suri Babu  V N Pargaonkar  K Gopalakrishna Murthy  V Panduranga Rao 《The Indian veterinary journal》1979,56(3):211-213

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