不用熊胆不行吗?

在中医的药典中,熊胆是一种名贵的中药材,具有清热、消炎、镇痉、明目、杀虫等功用。实际上,熊胆的药效并非传说的那样神奇,也绝不是一种必需的救命良药。医学实践表明,至少有50多种草药可以替代熊胆的各种功用,     

以鸡胆为原料制取熊去氧胆酸

熊去氧胆酸是名贵中药熊胆所含的主要成分，具有极强的促进脂肪及脂肪酸水解的作用，可抑制肝细胞内脂肪的沉积，增进其解毒功能，还可促进胆汁分泌，肝阮合成，在增大维生素B1、B2吸收的同时，还能促进肝的酯化，有降低血糖和利尿等功能。但由于天然熊胆来源日趋稀少，目前我国主要采用活能取胆方法获得熊胆汁，再经干燥后得到熊胆粉，主要应用于制成中成药。而熊胆中的有效成分一熊去氧胆酸的人工合成及研制在西药方面的研究与开发在国内又处于起步阶段。目前纳品熊去氧胆酸的制取主要有两种：以天然熊胆中提取；从牛羊胆中制取。制得纯…     

谈科研管理的价值特征

价值工程是一门管理技术、由于它的科学性和实效性,目前已在全世界得到广泛的应用。价值工程引进到我国只有短短十几年的历史。但它已在新产品设计研究,现产品改进,工程设计方案论证,企业管理方法改革,节能消除污染技术措施分析,军工产品产供及军事作业效率提高等领域的应用中获得显著的经济效益。近几年来我们学院在科研管理工作中,初步运用价值分析的理论和原则,在指导科研项目     

太赫兹科学技术的研究和应用新进展

太赫兹波技术在物理、化学、生命科学等基础研究学科,以及医学成像、安全检查、产品检测、空间通信、武器制导等应用学科都具有重要的研究价值和应用前景。从THz辐射源、THz波的检测及标定、THz波与物质相互作用和THz波的应用4个方面概述了太赫兹科学技术的研究和应用新进展。     

价值工程理论在产品设计中的应用分析

本文分析了价值工程理论在产品设计中的应用的基本思想和步骤,从产品功能的价值分析、材质选择、工艺设计、色彩设计、供应设计角度论述了价值工程理论在产品造型设计中的应用内容。     

基于网络平台的智能冰箱应用探讨

探讨基于网络平台的智能冰箱功能应用功能性,构建实现智能冰箱开放式网络连接系统平台方案,智能冰箱的功能设置和功能模块的实现,探讨功能增值应用对厂商、用户、产品、服务及社会等层面带来的价值提升.     

36个欧美观赏海棠品种(种)应用价值的综合评价

为指导欧美观赏海棠在我国北方地区的推广应用,运用层次分析法(AHP)建立了观赏海棠资源综合评价模型,从观赏性、适应性及抗寒性等方面筛选出15个评价因子,对36个欧美观赏海棠品种(种)的应用价值进行了综合评价。结果表明:花色、花期、果期及果色性状是影响欧美观赏海棠应用价值的主要因子。根据AHP评价结果,将36个引种观赏海棠划分为4个等级:Ⅰ级包括‘红丽’海棠等6个品种(种),推广应用价值最高;Ⅱ级共17个品种,应用价值较高;Ⅲ级共11个品种(种),应用价值中等;Ⅳ级仅有‘莱姆’和‘蒂娜’品种,综合应用价值最低。     

依人工智能相关产品设计观点探讨大数据应用研究

该文旨在探讨人工智能相关产品设计与大数据应用之间的关系。研究结果发现,生产差异化的产品、创造产品价值与迎合人工智能相关产品消费者的需要等三项人工智能相关产品设计与大数据应用具有显著的正向关系;而最受人工智能相关产品消费者认同与重视的是创造产品价值特征,其次是建立差异化的产品特征,最后则为迎合人工智能相关产品消费者的需要。     

药用和食用的“宠儿”——15种高附加值农副产品急待开发

1.兔胆 近年来,随着保护野生动物法规的贯彻执行,熊也随之成为重点保护动物,致使制药所需的熊胆货源紧缺。现开发兔胆热门,它的药用价值高,药理性能与熊胆相似。因此,兔胆已成为熊胆替代品。目前,国内外有不少制药厂,开始用兔胆制药,需求将大幅度增长。我国是养兔大国,加工兔胆将是有发展前途的产业。 2.辣椒叶 辣椒叶作为食物已     

柑桔果皮的深加工与综合利用

桔皮精油、色素、果胶、橙皮甙是目前桔皮的几种主要深加工产品,在化学工业和食品工业中有很高的应用价值.分别从它们的物理化学性质、功能特性、提取方法及影响产率的主要因素等方面进行综述.     

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