简易山楂去核机的设计

通过对山楂的物理结构分析及山楂去核的受力分析,提出以山楂核的中心进行定位的方案,以解决山楂去核时因定位不准而造成的破碎率高,惨档剩余率高的问题。设计制造了适合中小罐头厂生产需要的山楂去核机,该机以山楂果实的上下凹点为定位基准的中心定位方式。以上下工作头完成定位加工,保证了加工精度。该机工作效率比人工去核提高了9倍多,达72.0kg/h。     

新型山楂去核机的研制

为了满足市场需求,提高山楂食品制作工艺中去核步骤工作的效率,研制一款新型的山楂去核机替代人工手动完成山楂去核工作,摒弃日常小型工具手动人工去核的方案,使用更简便的机构设计提高去核效率。本机器由主传动系统和果核去除系统两部分组成。利用更加先进的机械结构以及传动方案进行改进,并且融合多种现代化科学技术,可以代替人工完成山楂的去核工作。此机器的机械结构设计采用SolidWorks三维软件,在软件环境下可以进行三维运动仿真。     

农副产品加工机械

1.打瓜取籽机主要有喂入辊、破碎辊和由铁丝绕制成的八棱锥筒回转筛及一个圆筒冲孔筛构成。该机可与小四轮拖拉机配套在田间作业.实现打瓜瓜籽分离的机械加工,具有较高的生产率和取净率以及较低的损失率。2.山楂捅核机采用了山楂花萼孔为定位基准的方式,使山楂在做间歇运转的转盘上能得到可靠的定位,能自动     

山楂制品的现状分析

对现有山楂制品现状和目前山楂产品滞销问题进行了分析。通过降低山楂汁中的有机酸和山楂汁中的单宁含量来改善产品的口感,加工出适合中年老人享用的保健食品,从而带动我国山楂产业发展。     

山楂罐头褪色因素与护色研究

分析了影响山楂罐头褪色的一些因素，指出罐头果皮中红色褪去的主要原因是由于罐头在加工和贮藏过程中山楂红色素溶解出来造成的。在此基础上研究了山楂罐头护色的方法，并取得了一定的效果。     

金柑去核机研制成功

宁波蜜饯厂试制一种新型的金柑去核机,为金柑的多层次深加工闯出了一条新路。金柑,是宁波市的传统名果,加工制成的蜜饯金柑饼,畅销于国内外市场。但金柑是多核果品,加工金柑饼时,去核工艺是生产中的一大难题。宁波蜜饯厂在宁波市滨海区科委的支持下,开展了金柑深度加工的综     

ZTP62-A/L电机机座方孔加工机床的设计

针对ZTP62－A／L电机机座方孔加工的问题，设计出的集机、液、电于一体的机座方孔切割机床，给出了该机床机械及液压系统的工作原理和结构组成，论述了设计该机床的基本思想。应用该机床加工该机座方孔，效果较好。     

几种轻糖山楂加工品的研制

山楂富含维生素、矿物质、黄酮等,被我国人民视为“长寿食品”。近年来,我国山楂栽培面积扩大,产量大增,但因山楂含酸量高,生产山楂果酱、山楂果冻、山楂果脯等加工品时需添加大量的食糖才能平衡其酸度,增加了成本,影响了山楂的生产及加工。为此我们进行了轻糖山     

山楂制品开发的现状及展望

1989年我国山楂栽培面积达到530万亩,2.37亿株,山楂果产量达到18.4万吨,预计到1992年占山楂总株数70%的幼树进入盛果期,山楂产量将达到41万吨.山楂产量的迅猛增长,形成了资源发展和加工能力的不适应,山楂增长速度大大超过加工转化能力,若不解决加工利用和开拓市场销路问题,这种产销矛盾将日益突出.要解决上述矛盾出路在哪里?我们认为出路在于采用新技术,开展山楂加工综合利用、开发食用药用系列食品,改造老产品、提高产品质量.立足于国内加工生产既适合于我国人民口味又容易保存的小包装山楂食品,着眼于国外发展果茶类、果肉类高档的作为主食的辅助食品.只有这样,才能保住市场的稳定和长期占领目标市场,解决来势迅猛的产销矛盾.     

台湾林檎果脯加工工艺技术研究

台湾林檎Malus doumeri (Bois) Chev为蔷薇科苹果属植物,民间也称其为大果山楂,用其代替山楂食用已有近百年。目前用野生台湾林檎加工果脯,并没有现成的工艺技术,因此需要进行探索、创新。本实验采用2步法工艺技术进行试验研究,探索出了野生台湾林檎果脯加工工艺技术,其中得到了3个自创工艺,即去核工艺Ⅰ、软化工艺Ⅱ、干燥前预处理工艺。通过实验研究发现,当加工物料的厚度为1. 5 mm同心圆时,进行软化工艺Ⅱ处理3 min得到的物料填充效果最佳;其中物料填充因素的最优效果组合为A3B3C2即糖含量为45%,真空时间为1 h,静置时间为12 h;为了防止物料在加工过程中发生褐变,探索出了最佳护色试验参数,通过2%盐水浸泡0. 5 h,然后用0. 3%柠檬酸+0. 08%Vc叠加进行护色,护色时间为0. 5 h,提高了护色效果的同时缩短了加工时间。这些关键技术及其参数的解决,并得到了理想产品,为野生台湾林檎进一步商品化、农业产业化提供了可靠的技术支撑。     

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