长柄扁桃仁的营养成分分析

目的 深入研究长柄扁桃仁的营养价值.方法 使用原子吸收和氨基酸分析仪等方法对长柄扁桃仁的微量元素和氨基酸进行分析.结果 长柄扁桃仁中含有9种人体所需的微量元素,含量大小依次为K>Mg>Ca>P>Na>Fe>Zn>Mn>Cu,其中K,Ca,Fe,Zn的含量分别为6 930.9 mg/kg,3 396.8 mg/kg,8 162.74 mg/kg,44.19 mg/kg,未检出Pb,Cd,Hg,As等有害元素;含有18种氨基酸,总量为21.187%,8种人体必需氨基酸总量6.301%,其他具有特殊药理作用的氨基酸如谷氨酸、天冬氨酸及甘氨酸等含量也很丰富.结论 长柄扁桃仁营养丰富,具有进一步开发的价值.     

陕西扁桃仁的氨基酸和元素分析

目的研究陕西扁桃蛋白的氨基酸组成以及扁桃仁中的微量元素,以评价陕西扁桃仁的品质。方法采用氨基酸自动分析仪和原子吸收等方法分别进行氨基酸测定和元素分析。结果陕西蒲城产扁桃仁中含有18种氨基酸,总量为23.21%,8种人体必需氨基酸总量6.86%,其他具有特殊药理作用的氨基酸如谷氨酸、精氨酸、天冬氨酸及甘氨酸等含量也很丰富;扁桃仁中含有9种人体所需的矿质元素,含量大小依次为K>P>Mg>Ca>Na>Fe>Zn>Mn>Cu,其中K,Ca,Fe,Zn的含量分别为6 047.0 mg/kg,2 286.0 mg/kg,54.1 mg/kg,33.4mg/kg;未检出Pb,Cd,Hg,As等有害元素。结论扁桃仁属于高K,高Ca,富Fe,富Zn,含优质氨基酸和蛋白、不含Pb,Cd,Hg,As有害元素的健康食品。     

暗褐网柄牛肝菌子实体营养成分分析

测定了暗褐网柄牛肝菌子实体中的氨基酸、矿质元素、总糖、粗脂肪、粗纤维、灰分和蛋白质含量.结果表明,暗褐网柄牛肝菌子实体富含矿物质和蛋白质,并含有17种氨基酸.在矿质元素中,铁、磷和钾的含量相对较高.7种必需氨基酸占氨基酸总质量的38.08%,必需氨基酸与非必需氨基酸的质量比为0.61.     

沙地濒危植物长柄扁桃仁中维生素E含量分析

目的 研究高效液相色谱快速测定沙地濒危植物长柄扁桃仁中α-维生素E(α-生育酚)含量的方法.方法 采用色谱柱为Shim-pack VP-ODS柱(150 mm×4.6mm,5μm);流动相为甲醇-水(体积比为98:2),流速1.2 mL/min;检测波长为300 nm;柱温为室温.以保留时间定性,峰面积定量,标准曲线法计算样品中α-维生素E(α-VE)的含量.结果 方法的线性范围为1.298～103.84μg/mL,线性相关系数为0.999 9;检出限为0.19μg/mL;精密度为1.21%～3.26%;方法回收率为84.93%～90.53%,平均回收率为88.15%(RSD=2.68%).测得长柄扁桃仁中α-VE含量为2.82μg/g,α-VE,δ-VE,β,γ-VE的相对百分含量分别为0.94%,92.78%,6.28%.结论 长柄扁桃仁具有一定的经济价值,从中提取的天然维生素E为低α型混合生育酚,在医药、食品、饲料、化妆品方面可作为一种抗氧化剂,为全面评价长柄扁桃仁的营养品质及为产品开发利用提供科学依据.     

苦荞菜的营养与食疗作用

苦荞菜中含有丰富的营养物质,其中,蛋白质含量为18.94％,高于稻米、玉米、小麦等食物,还含有人体必需的8种氨基酸,与豆类及其制品和一般鱼类接近;苦荞菜中有含量较高的对人体有疗效作用的钙、镁等矿质元素、生物类黄酮和膳食纤维。     

竹叶菜不同处理样品营养成分比较

竹叶菜( 高大鹿药 Similacina atropurpurea) 的营养成分包括氨基酸、蛋白质、总糖、矿质元素, 不同的处理样品营养成分含量不同.结果显示: 竹叶菜营养丰富,在鲜竹叶菜中水分占总重量的 90%, 总氨基酸含量为 24.76%,包含有除色氨酸以外的17种氨基酸, 蛋白质含量占干重的41.6%,在竹叶菜中糖含量较少,只占鲜重的 2.56%, 此外, 竹叶菜亦含有较为丰富的矿质元素和维生素C旱粮以及少量的糖.盐渍样营养成分有较大损失,盐渍和清水加工对维持 Vc有较大影响.     

牵牛子(黑丑)化学成分的初步研究

对牵牛子的化学成分进行了研究，结果表明：牵牛子含油量为17．50％，其脂肪油含有大量 人体必需的不饱和脂肪酸，其主要成分为：棕榈酸（15．07％）、硬脂酸（10．02％）、油酸（29．55）、亚油酸（32．04％）、亚麻酸（7．03）等。此外，还测定了18种氨基酸，24种矿质元素等成分。种子含有8种必需氨基酸，占总氨基酸的34．98％，矿质元素种类齐全，Fe、Mn、Cu、Zn、Ca含量较高，其种子和种子油具有较高的营养价值和药用功效。     

薜荔花粉的营养成分研究

分析测定了薜荔分的营养成分，研究结果表明，其蛋白质含量３９．８８％，氨基酸总量为３９．４１％，必需基酸含量为１４．５６％，游离氨基酸含量为３０．０７ｍｇ／ｇ，氨基酸佞为９７分，并含有丰富的维生素、矿质元素、脂肪酸和总黄酮等营养物质，薜荔花粉资源丰富，营养成分全面，具有很高的开发利用价值。     

雅长铁皮石斛原生种与选育种的营养成分对比分析

为科学、合理地开发利用雅长铁皮石斛（Yachang''s Dendrobium officinale）资源,本研究对其原生种和选育种的基本营养成分、氨基酸和矿质元素进行测定,并采用氨基酸比值系数法对两种铁皮石斛进行营养价值评价。研究结果表明：两种铁皮石斛中共检测出4种常量元素和6种微量元素。除了B、Fe以外,原生种中的4种常量元素（Na、Mg、K、Ca）和4种微量元素（Zn、Mn、Cu、Se）含量均显著高于选育种。两种铁皮石斛中均以K的含量最高,分别为4 430、3 650 mg/kg,且都表现出“高钾低钠”的特点,原生种中K含量约是Na含量的103.5倍,选育种约为187.2倍。两种铁皮石斛共检测出16种氨基酸,包括6种必需氨基酸（EAA）,4种鲜味氨基酸（DAA）,8种苦味氨基酸（BAA）和9种药用氨基酸（MAA）。原生种和选育种氨基酸总量（TAA）分别为0.85、0.68 g/100 g。原生种氨基酸总量、必需氨基酸总量、药用氨基酸总量均显著高于选育种,两种铁皮石斛的第一限制氨基酸均为蛋氨酸+半胱氨酸（Met+Cys）。两种铁皮石斛的必需氨基酸营养价值差距不大,其必需氨基酸比值系数分（SRC）分别为54.9（原生种）、56.2（选育种）。在基本营养成分方面,原生种中除粗纤维和粗蛋白的含量显著高于选育种之外,其他成分含量的差异性均不显著。综上,雅长铁皮石斛原生种在基本营养成分、矿质元素和氨基酸含量方面均优于选育种,其中矿质元素含量的差异最大。因此,原生种的整体营养价值高于选育种。     

毛白杨雄花序营养成分分析及评价

对毛白杨雄花序的蛋白质、脂肪、膳食纤维、氨基酸、矿质元素、维生素等营养成分进行了分析测定，并与常用饲料的营养成分进行比较。结果表明，毛白杨雄花序中含有丰富的营养，其中蛋白质含量高达17．6％，脂肪含量达3．8％，粗纤维含量达12．1％，富含动物生长必需的微量元素和氨基酸，很值得进一步的开发利用。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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