关于杨乐不等式的一点注记

在亚纯函数值分布论中,有重要的杨乐不等式。本文基于Nevanlinna理论将杨乐不等式中计数函数的常数推广为多项式函数。     

关于杨乐不等式的一点注记

在亚纯函数值分布论中,有重要的杨乐不等式.本文基于Nevanlinna理论将杨乐不等式中计数函数的常数推广为多项式函数.     

杨乐不等式的推广

基于Nevanlinna理论对杨乐不等式进行推广，把原不等式中的计算函数的常数易为超越小整函数，得到了另一个形式的杨乐不等式。     

关于精密的杨乐不等式与亏量和

在亚纯函数值分布论中,有一类重要的精密的杨乐不等式.为求得亚纯函数相对于多项式函数的值分布,基于Nevanlinna理论和函数论分析的方法将杨乐不等式中计数函数的常数推广为多项式函数,并得到了相应的亏量和的上界,结果显示亚纯函数相对于多项式的值分布的不等式也是精密的.     

单项式f(f(k))n与正规族

本文继续杨重骏，杨乐等人的研究．杨重骏，杨乐，王跃飞猜测对于平面上的超越亚纯函数f，f(f     

代数体函数的几个定理

定义并研究了代数体函数的对应加法,结合杨乐、孙道椿的研究亚纯函数的方法,将仪洪勋联系重值的亚纯函数唯一性定理推广到了多值的代数体函数.     

两个代数体函数恒等的条件

研究了两个不可约代数体函数相等的条件,并结合杨乐,Lahiri研究亚纯函数重值的方法将仪鸿勋关于亚纯函数唯一性定理的几个结论推广到多值的代数体函数。     

亚纯函数在单位圆内的辐角分布

本文推广了杨乐关于单位圆内有穷正级的亚纯函数辐角分布的一个结果,同时讨论了单位圆内零级亚纯函数的辐角分布。     

张庆德—杨乐定理的推广

本文把幅角分布论中的张庆德—杨乐定理推广到了一部分零级和无穷级亚纯函数类。     

亚纯函数的正规族

研究了亚纯函数族的正规性,在改进顾永兴、杨乐、方明亮等人的相关结果的基础上获得了亚纯函数族的几个正规定则.在涉及例外函数a(z)其中a(z)≠0的条件下,主要证明了定理1和定理2.     

Further support for a Cretaceous age for the feathered-dinosaur beds of Liaoning,China:New 40Ar/39Ar dating of the Yixian and Tuchengzi Formations

We report new 40Ar/39Ar dating results obtained from total fusion and incremental-heating analyses of sanidine and biotite from three tuffs found interbedded within the fossil-bearing deposits of Liaoning, northeast China. The first is a new sample of the Bed 6 Sihetun tuff from the Yixian Formation, previously dated by our team as middle Early Cretaceous, and recently considered by Lo et al., partially reset due to metamorphism from a nearby basaltic sill. The second is the Yixian Bed 9 tuff from Hengdaozi considered by Lo et al. to be unaffected by metamorphism and whose age, based on total fusion 40Ar/39Ar dating of biotite, argues for a Jurassic age for the Yixian Formation.The third tuff is a previously undated tuff from the upper part of the underlying Tuchengzi Formation. Single crystal total fusion 40Ar/39Ar analyses of the Sihetun sanidine showed homogeneous radiogenic Ar, Ca/K ratios, excellent reproducibility and gave a mean age of 125.0 ± 0.18 (1SD) ±0.04 (SE) Ma. Single sanidine crystal total fusion 40Ar/39Aranalyses of the Hengdaozi tuff gave a mean age of 125.0 +0.19 (1SD) ± 0.04 (SE) Ma, which is indistinguishable from the Sihetun tuff. The Tuchengzi Formation tuff gave a mean age of 139.4 ± 0.19 (1SD) ± 0.05 (SE) Ma. Detailed laser incremental-heating analyses of biotite from Sihetun, Hengdaozi, and Tuchengzi tuffs show disturbed Ar release patterns and evidence of trapped argon components. We conclude from these analyses that the total fusion dates on biotite by Lo et al. are erroneously old and isotopic dating of both biotite and sanidine from tuffs of the Yixian Formation point to a middle Early Cretaceous age. The upper part of the Tuchengzi Formation can be referred to the Early Cretaceous.``     

代数体函数的唯一性定理

定义了代数体函数的加法及乘法,并证明了运算后的结果仍是代数体函数. 并应用新定义的加法,将联系重值的唯一性定理推广到多值的代数体函数.     

微分多项式具有重值的亚纯函数的奇异方向

给出了一类亚纯函数在涉及微分多项式具有重值情况下的正规定则与奇异方向,分别推广了杨乐、顾永兴、陈怀惠、柏盛桄和作者的结果.     

汉源新县城段水库塌岸与工程治理研究

由于瀑布沟水电站工程的修建,汉源县城将被淹没,汉源县城新址选在大渡河支流流沙河右岸萝卜岗场地,水库塌岸区就位于县城新址下坡处。本文根据汉源新县城水库消落区和塌岸区的实际地质资料,利用卡秋金公式预测了汉源新县城水库塌岸区的塌岸宽度,分析了此工程段内工程地质问题对水库塌岸的影响;最后结合汉源新县城建设的工程实际,提出了具体的工程治理措施。     

Further support for a Cretaceous age for the feathered-dinosaur beds of Liaoning,China:New 40Ar÷39Ar dating of the Yixian and Tuchengzi Formations

We report new ⁴⁰Ar÷³⁹Ar dating results obtained from total fusion and incremental-heating analyses of sanidine and biotite from three tuffs found interbedded within the fossil-bearing deposits of Liaoning, northeast China. The first is a new sample of the Bed 6 Sihetun tuff from the Yixian Formation, previously dated by our team as middle Early Cretaceous, and recently considered by Lo et al., partially reset due to metamorphism from a nearby basaltic sill. The second is the Yixian Bed 9 tuff from Hengdaozi considered by Lo et al. to be unaffected by metamorphism and whose age, based on total fusion ⁴⁰Ar÷³⁹Ar dating of biotite, argues for a Jurassic age for the Yixian Formation. The third tuff is a previously undated tuff from the upper part of the underlying Tuchengzi Formation. Single crystal total fusion ⁴⁰Ar÷³⁹Ar analyses of the Sihetun sanidine showed homogeneous radiogenic Ar, Ca÷K ratios, excellent reproducibility and gave a mean age of 125.0±0.18 (1SD)±0.04 (SE) Ma. Single sanidine crystal total fusion ⁴⁰Ar÷³⁹Ar analyses of the Hengdaozi tuff gave a mean age of 125.0±0.19 (1SD)±0.04 (SE) Ma, which is indistinguishable from the Sihetun tuff. The Tuchengzi Formation tuff gave a mean age of 139.4±0.19 (1SD)±0.05 (SE) Ma. Detailed laser incremental-heating analyses of biotite from Sihetun, Hengdaozi, and Tuchengzi tuffs show disturbed Ar release patterns and evidence of trapped argon components. We conclude from these analyses that the total fusion dates on biotite by Lo et al. are erroneously old and isotopic dating of both biotite and sanidine from tuffs of the Yixian Formation point to a middle Early Cretaceous age. The upper part of the Tuchengzi Formation can be referred to the Early Cretaceous.     

水分胁迫下亚麻种子萌发的生理响应

为了解水分胁迫对亚麻种子萌发的影响以及为亚麻抗旱栽培技术和育种方法提供理论依据,以亚麻076、075、陇亚8号的种子为试验材料,分别用不同质量分数(0%、10%、15%、20%、25%、30%)的聚乙二醇(PEG-6000)处理,研究水分胁迫对亚麻种子的萌发的影响。结果显示:随着PEG质量分数的增加,亚麻种子的发芽势、发芽率下降,其中陇亚8号下降幅度最大。亚麻种子在PEG质量分数增加时,电导率呈现了低高低的趋势,其中076的电导率的变化较明显。适宜质量分数的PEG胁迫可以提高种子的活力指数,而较高质量分数的PEG则降低种子的活力指数。试验可知,这3个品种的种子在抗旱性上有明显的差异,076抗旱性强,075较抗旱,陇亚8号不抗旱。     

Further support for a Cretaceous age for the feathered-dinosaur beds of Liaoning, China: New 40Ar/39Ar dating of the Yixian and Tuchengzi

We report new ⁴⁰Ar/³⁹Ar dating results obtained from total fusion and incremental-heating analyses of sanidine and biotite from three tuffs found interbedded within the fossil-bearing deposits of Liaoning, northeast China. The first is a new sample of the Bed 6 Sihetun tuff from the Yixian Formation, previously dated by our team as middle Early Cretaceous, and recently considered by Lo et al., partially reset due to metamorphism from a nearby basaltic sill. The second is the Yixian Bed 9 tuff from Hengdaozi considered by Lo et al. to be unaffected by metamorphism and whose age, based on total fusion ⁴⁰Ar/³⁹Ar dating of biotite, argues for a Jurassic age for the Yixian Formation. The third tuff is a previously undated tuff from the upper part of the underlying Tuchengzi Formation. Single crystal total fusion ⁴⁰Ar/³⁹Ar analyses of the Sihetun sanidine showed homogeneous radiogenic Ar, Ca/K ratios, excellent reproducibility and gave a mean age of 125.0 ± 0.18 (1SD) ± 0.04 (SE) Ma. Single sanidine crystal total fusion ⁴⁰Ar/³⁹Ar analyses of the Hengdaozi tuff gave a mean age of 125.0 ± 0.19 (1SD) ± 0.04 (SE) Ma, which is indistinguishable from the Sihetun tuff. The Tuchengzi Formation tuff gave a mean age of 139.4 ± 0.19 (1SD) ± 0.05 (SE) Ma. Detailed laser incremental-heating analyses of biotite from Sihetun, Hengdaozi, and Tuchengzi tuffs show disturbed Ar release patterns and evidence of trapped argon components. We conclude from these analyses that the total fusion dates on biotite by Lo et al. are erroneously old and isotopic dating of both biotite and sanidine from tuffs of the Yixian Formation point to a middle Early Cretaceous age. The upper part of the Tuchengzi Formation can be referred to the Early Cretaceous.     

基于路基沉降变形规律的预测新模型及其应用

针对山区高速公路路基沉降变形规律复杂而难以预测的实际情况,通过整理大量现场试验监测数据,深入探讨不同工况条件下路基沉降变形发展趋势,总结得出其变形发展规律。在此基础上,基于指数函数曲线模型,提出了DR曲线预测新模型;并运用数值分析方法,结合实际工程实例与泊松曲线、Logistic曲线的预测结果进行对比;其结果表明:DR曲线预测模型精度更高,能更好的适应实际情况的变化,为山区高速公路路基沉降发展预测提供了一种有效而实用的方法,具有一定的工程实用价值。