查询词典 VAR
- 与 VAR 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Vegetation zones and 10 vegetation types were classified using TWINSPAN and DCA: Bischofia javanica‐Machilus japonica var. kusanoi type on Ficus‐Machilus zone; Engelhardia roxburghiana‐Castanopsis cuspidata var. carlesii type on Machilus‐Castanopsis zone; Rhododendron formosanum type and Pasania kawakamii‐Machilus thunbergii type on Quercus lower zone; Chamaecyparis obtusa var. formosana—Rhododendron formosanum type, Fagus hayatae type, Symplocos arisanensis‐Illicium anisatum type on Quercus upper zone; Tsuga chinensis var. formosana and Pinus taiwanensis type on Tsuga‐Picea zone; Abies kawakamii type on Abies zone.
经TWINSPAN分析及参考DCA结果,可将植物社会区分为6个植群带10个植群型,分别为榕楠林带的茄冬‐大叶楠型;楠槠林带的黄杞‐长尾尖叶槠型;栎林带下层的台湾杜鹃型、大叶石栎‐猪脚楠型;栎林带上层的台湾扁柏‐台湾杜鹃型、台湾水青冈型及阿里山灰木‐白花八角型;铁杉‐云杉林带的台湾铁杉型、台湾二叶松型;冷杉林带的台湾冷杉型。
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Var. pyramidalis is not positively correlated with ion concentration in growth environment, the capacity of selective absorption and transport of ions in Populus alba L. var. pyramidali under salt stress in drainage canal is higher than Populus alba L. var. pyramidal is of normal growth in irrigation canal. Under salt stress, the concentration of K(superscript +)、Na(superscript +) of roots and leave of Populus alba L. var. pyramidalis have changed, the concentration of K(superscript +) of roots and leave dropt the concentration of Na(superscript +) of roots markedly increased, the concentration of Ca(superscript 2+), Mg(superscript 2+) have slightly changed, the concentration of Ca(superscript 2+) of roots dropted, the concentration of Mg(superscript 2+) increased, the concentration of Ca(superscript 2+), Mg(superscript 2+) of leave increased.
主要结论为:新疆杨各器官的离子含量与生长环境中的离子浓度不存在正相关趋势;排渠盐胁迫下生长的新疆杨对离子选择吸收和运输的能力高于灌渠正常生长的新疆杨;盐胁迫下,新疆杨根和叶中K、Na的浓度发生了明显的变化,K浓度在根和叶中呈下降趋势,Na浓度在根中明显增加,根和叶中Ca(上标 2+)、Mg(上标 2+)浓度的变化趋势略缓,根中Ca(上标 2+)浓度下降,Mg(上标 2+)浓度增加,叶中Ca(上标 2+)、Mg(上标 2+)浓度有所上升。
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Value at Risk was main tool of market risk management but traditional VaR did not appreciate liquidity risk to make that VaR did not give correct information and was disvalue VaR to lead a large number of damages.
在现如今的风险管理工具中,风险值是应用最为广泛的一种,但在以往传统的风险值度量模型中,并不重视或是基本不考虑流动性不足问题所带来的风险,这使得风险值无法提供给投资者完全、真实、可靠的信息,更严重的问题是错估风险值会造成更大的损失。
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objective:to determine glucosinolates in draba nemorosa var.leiocarpa and provide the basic and science data for further development.methods:sulfate ion precipitation method was used.results:glucosinolate content was 0.95% in draba nemorosa var.leiocarpa.conclusion:there are more glucosinolates in draba nemorosa var.leiocarpa,which has greater value.
目的:测定光果葶苈全草中硫代葡萄糖苷的总含量,为进一步研究开发提供基础科学资料。方法:采用硫酸根离子沉淀法。结果:光果葶苈全草中硫代葡萄糖苷总含量为0.95%。结论:光果葶苈全草中硫代葡萄糖苷含量高,有较大的开发价值。
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The eco-physiological characteristics of drought endurance of Pinus sylvestris var.mongolica were studied under different climatic regions, soil water and leaf water condition.Furthemore,the response and adaptability of trees to water stress was done.The below showed the results. 1 The parameters of drought endurance of P. sylvestris var. mongolica was measure and studied by PV technology in the subhumid, semiarid and arid regions The results indicated the osmotic potentials at water saturation condition and at the initial loss turgor decreased as the climatic drought degree increased,and related linearly with the climatic moisture index.It was proved that the drought endurance of P. sylvetris var. mongolica was varible and the elevation of the osmotic adjust capability was a main way to the adaptation of trees to the drought climatic environment.
本文研究了樟子松(Pinus sylvestris var.mongolica)的主要耐旱生理生态特征在不同地区、不同土壤水分状况和叶水分状况下的变化,进而研究了樟子松对水分胁迫的反应和适应,结果如下: 1 应用 PV 技术对半湿润区、半干旱区和干旱区樟子松耐旱性指标测定研究指出,水饱和总体渗透势和初始失膨点总体渗透势随着气候干旱程度增加而增加,与气候湿度指标呈直线相关,证明了樟子松属于耐旱性可变的树种,渗透调节能力增加是其对干旱气候适应的主要途径。
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Compensating devices have developed from Synchronous Adjustive Phasic Device, Static Var Compensator to Advanced Static Var Generator nowadays. Today, Trinomial Three Lines pattern Static Var Generator is grown up. But the anisomerous problem becomes more and more serious.
目前用于三相三线制的静止无功发生器已经较为成熟,但随着不对称负荷问题的日益突出,对零线电流的补偿显得十分重要,这就要求使用三相四线制的静止无功发生器。
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The results indicate seawater concentration has no effect on absorbency, pH, relative density, dry matter and water contents in Aloe vera leaves. While, seawater stress causes increased MDA and membrane penetration, decreased phytochroms, prolines and NO_3~--N. It is beneficial to plant growth when irrigation was done with 10% seawater, because of higher ratio of K~+/Na~+ and lower ratio of Na~+/Ca~(2+). In addition, the polysaccharide contents in Aloe vera leaves increase twice and triplication under 25% and 50% seawater irrigation respectively, the barbaloin contents increase over triplication in var. 75% seawater and over twice in var. 50% seawater and var. 100% seawater. However, when seawater concentration exceeds 25% the growth of plant was inhibited, biomass decreased, flowering time was deferred, Ca~(2+) content decreased caused by Na~+ accumulation in leaves.
结果表明:在海水胁迫下,库拉索芦荟全叶汁的吸光度、酸度、相对密度、总固形物和水分含量总体上受海水浓度的影响不大;但芦荟叶的丙二醛含量和质膜透性增加,叶绿体色素、脯氨酸和硝态氮含量减少;在10%海水浇灌下,芦荟叶细胞具有较高的K~+/Na~+比和较低的Na~+/Ca~(2+)比,对库拉索芦荟的生长有一定的促进作用;在25%海水和50%海水浇灌下,芦荟多糖含量提高了2-3倍;在75%海水浇灌下芦荟甙含量增加了3倍多,在50%海水和100%海水灌溉下,其含量也增加了2倍多;当海水浇灌浓度超过25%后,库拉索芦荟的生长明显受到抑制,生物量降低,抽苔期推迟,同时,海水浓度的增加也导致芦荟叶中累积大量Na~+,从而使得芦荟叶中Ca~(2+)含量降低,但Mg~(2+)并没有受到海水浓度的影响;用浓度低于75%的海水浇灌库拉索芦荟可以降低剖面深度在0-100cm之间的土壤盐度;其抗氧化保护酶中超氧化歧化酶的酶活力相对保持稳定,过氧化物酶的酶活力在10%海水浇灌下明显提高,随后则下降,而过氧化氢酶的酶活力则随海水浓度的升高而下降。
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Because of characteristics of quantify, synthesis, earthliness of VaR's measuring risk, VaR has been widely applied in many banks, financial institutions and supervision institutions, and now has been becoming the international standard. Therefore, introducing VaR to Chinese is practically very important.
VaR方法因其测量风险的定量性、综合性、通俗性等特点而被许多银行、金融机构和监管机构广泛应用,目前正在成为金融风险管理的国际标准,将它引入到我国的风险管理中有重大的现实意义。
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Value at Risk was main tool of market risk management but traditional VaR did not appreciate liquidity risk to make that VaR did not give correct information and was misvalue VaR to lead a large number of damages.
摘要 风险值为现今主要风险管理下之衡量工具,但在传统的风险值模型中,并不重视流动性风险,使得风险值无法提供投资者真实的资讯,另外可能因错估风险值,而造成更大的损失。
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In view of the peaked and fat-tailed characteristics of financial return data distribution and its effect of clustering fluctuation and especially the "leverage effect" of fluctuation on VaR estimates and some efficiencies when estimating VaR with various assumptions of return data distribution,a semi-parameter approach based on EGARCH-VaR model is developed.
在综合考虑了金融收益数据分布的尖峰厚尾特征及其波动集群性,尤其是其波动的&杠杆效应&对VaR估计的影响以及各种假定收益率分布在计算风险价值时存在不足的基础上,提出了基于EGARCH-VaR的半参数方法,并且与正态分布和t分布假设下的GARCH模型的VaR计量方法进行比较,通过实证分析,并利用后验测试,表明基于EGARCH-VaR的半参数方法对风险价值的测度优于正态分布和t分布假设下GARCH模型的VaR计量方法。
- 相关中文对照歌词
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- On Tha Ground
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- 推荐网络例句
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Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.
您的推杆方式,通过36个有趣的填孔迷你的三维设计的课程,以提升绿党,掩体,桥梁和水的危害,除其他疯狂的障碍。
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Some participles can be used either as attributes or as predicatives.
有些分词既可当定语用,也可当表语用。
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Over time, the jaw crusher has been a significant improvement, it is a highly efficient, energy-efficient equipment often broken.
随着时间的推移,颚式破碎机得到很大的改进,已经是一种高效,节能的常用破碎设备。