活性钙对脐橙果实品质的影响

钙作为果实品质元素已经得到了广泛的研究和证实．本实验通过对“朋娜”、“纽荷尔”、“脐2—8”三个品种的脐橙树叶面喷施活性钙，通过方差分析研究活性钙对这三个品种果实的品质的影响．结果发现活性钙显著提高了“朋娜”、“纽荷尔”、“脐2—8”果实鲜果重、可溶性固形物、总糖的含量；并改善了“纽荷尔”果形指数等品质性状．     

脐橙果实和叶片发育中磷硫动态的研究

研究了赣南纽荷尔和朋娜脐橙果实及叶片中的磷硫含量的季节性变化.结果表明:(1)幼果期两品种果皮磷含量均居较高,之后趋明显下降,而对应果肉磷含量趋于稳定;两品种老叶磷含量动态均呈前升后降的趋势,膨大期内纽荷尔老叶磷含量相对较高,对应春梢叶磷含量均呈明显下降趋势.(2)两品种果皮和果肉硫含量整体上均趋下降;老叶硫含量虽于幼果期均出现较小的峰值,但总体变化较小,且纽荷尔老叶硫含量相对较高,而春梢叶硫含量整体均趋上升.本文还就纽荷尔脐橙果实和叶片发育过程中的磷硫动态与其生长发育及其缺硼表现的关系进行了讨论.     

银杏良种──江苏大佛手引种栽培研究

江苏大佛手在桂林引种表现生长快、长势好、生长期长、早实、丰产、质优等优良性状，是值得大力推广的优良品种．大砧嫁接、幼树整形修剪、加强肥水管理、人工辅助授粉及疏花疏果是江苏大佛手获得早实丰产的关键技术措施。     

黄瓜新组合“海大2098”遗传性状分析

对黄瓜亲本及F1代(海大2098)的植物学性状、商品性、抗病性、及丰产性进行遗传性状分析.结果表明:"海大2098"的植株长势旺,产量高(93796.9kg·hm-2),抗病性一般,抗逆性强,果实商品性好,极具市场竞争力.认为"海大2098"可作为海南夏秋季的主栽品种加以推广.     

朋娜脐橙幼壮树秋梢摘心促花增产试验初报

针对浙江省遂昌县井桐坞果园脐橙投产后因开花量少,产量不佳的实际情况,开展了不同方法的秋梢摘心促花增产试验。结果表明,朋娜脐橙幼壮树秋梢摘心促花增产效果明显,能使翌年抽发出质量好的结果枝,促进花芽分化,可极显著提高开花数量、座果率和产量。其中以秋梢生长至20cm～22cm时,摘去梢尖的1～2个节位,保留梢长约20cm最适宜,能提高产量77.9%。摘心时应避免留梢过短,否则,容易诱发大量的晚秋梢抽发,不利翌年的开花结果。     

樱桃番茄不同品系比较试验

通过对16份樱桃番茄材料比较试验,调查了各樱桃番茄的物候期、生长状况、产量及园艺性状指标。并进行了聚类分析。结果表明：16份材料可分成3类,其中第Ⅰ、Ⅱ类为优质品系,包括9604-11、9604-10、哈引红珍珠,其品质优良、性状稳定、商品性好,较适合上海地区载栽培,可在生产中作为特色品种推出。     

黄皮尖椒品种比较试验

对引进 9个黄皮尖椒品种的植物学性状、商品性状、抗病性及丰产性进行了比较试验 .结果表明 :苗丰 2 2号植株长势旺 ,产量高 (2 0 6 5 1kg·hm- 2 ) ,抗病性强 ,果实商品性好 ;9919较耐高温 ,商品外观好 ,果较长 ,产量较高 (2 0 0 87kg·hm- 2 ) ;优美 5号产量中等 ,但果色黄绿 ,果形美观 ,易为市场接受 ;茂椒 4号果色黄绿 ,果形美观 ,单果重达 4 5 .0 0g ,极具市场竞争力 .认为这 4个品种可作为海南冬季主栽辣椒品种并加以推广 .     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with