基于图像分析法对喷墨打印机墨点保真度的研究

喷墨打印墨点的保真度通常通过墨点的圆度、面积变化率及打印位置的准确度来衡量．研究了墨点的保真度分析原理，设计了基于图像分析法的打印质量显微图像分析系统．利用显微图像分析系统对HP、Canon和Epson喷墨打印机分别在三种涂布纸上打印墨点效果进行了分析．实验表明，该方法可用于涂布和印刷图像质量的评价．     

电话复印文件笔画边缘墨点形态特征定量检验方法

现有的墨点形态特征检验方法由于在提取特征前缺少形态学滤波过程,使得墨点图像色度不均,导致检验结果受噪声影响大、检验结果不可靠,对此提出一种复印文件笔画边缘墨点形态特征定量检验方法。把膨胀与腐蚀运算依据不同顺序级联组成开启与闭合运算,分别利用开、闭运算去除较小的过亮和过暗细节,通过形态学滤波使得图像色度均匀;选择8×8方形结构算子,通过膨胀运算与腐蚀运算实现墨点图像边缘提取,结合二值化处理获得边缘信息,并检验墨点边界周长、直径、面积、圆度、矩形度及伸长度6个形态特征,实现特征定量检验。实验结果表明:该方法可有效滤除噪声、均匀图像色度,边缘的提取效果较好,并且通过该方法获取的边缘墨点形态特征检验结果与实际结果最为接近,应用价值最高。     

喷墨打印机术语

喷墨式打印机 喷墨式打印机(Ink-jet Printer)使用大量的喷咀，将墨点喷射到纸张上。由于喷嘴的数量较多，且墨点细小，能够做出比撞击式打印机更细致、混合更多种色彩的效果。不单如此，亦由于墨点喷射的方式并不会对色带或印头造成损耗，而且并不需要如针式打印机一样重复打印数遍来做成混色的效果，所以这种技术很适合用来制造高速的彩色打印机。     

美术作品中的色彩

美术作品中的色彩是画家主观创造的产物,色彩和谐是画家对色彩巧妙搭配的结果。从远古时期有限的色彩选择,到今天可以随心所欲使用色彩;从象化模式东方到量化模式的西方,人们一直潜心研究色彩的科学和艺术表现。而色彩情感一直为画家们最富有表现的手段,它时而是设定好的程序,时而又是不可知和不确定的创造过程。     

论油画色彩的情感表现

色彩是油画的灵魂。一个当代画家的绘画创作活动的主要目的,在于使色彩能充分表达画家的情感意念和内心体验。仅凭画家的感觉创作出的绘画色彩,已不能满足于现代人的审美需要。因此研究和探索油画色彩的情感表现是当今油画创新与发展的一个重要课题。     

油画人体教学中的色彩因素

油画人体写生课程是高等学校美术类油画专业所必修的一门重要的专业课。油画人体课程一般是油画专业本科教学计划中的高级阶段,难度较大。油画人体也是绘画创作中较难的绘画题材,许多画家都以自己独特的色彩表现方式和方法来表现人体,通过色彩的丰富表现,传达出画家在油画人体创作中的色彩表达思想和个人情感,那么对色彩的认识和表现力是关系到学生提高的一个重要问题。     

个性化语言在油画中的表现透析

油画个性化语言表达与创作是相辅相成的,反映了画家对整幅画面的形、色、线的节奏韵律构成、画面空间的处理,乃至每块色彩,用笔和肌理的把握.画家不仅考虑要画什么,而且要更多地考虑如何表现出个人的风格,考虑所应采取的能表现画家个性的绘画语言.文章对油画个人风格语言进行了思考,从绘画语言的造型、色彩、笔触等表现手法方面分析了油画个性化语言的形成.     

中国画"意象造型"辨析

意象造型的"意象"是画家主观的审美意念与客观的事物形象的统一体,是主体的"意"和客体的"象"的复合物.意象造型",就是画家不满足于停留在对客观物象的自然描绘上,而把所表现的自然物象的形经过画家主观审美加工提炼而变为意识中的形,即以意造型.     

论画家乡土情感之变迁

以乡土为题材的画家，早期多以美丽的家园、纯朴的乡俗民风为描绘对象，展示出画家对乡土主观性的赞美。随着社会的发展与时代的变化，画家的情感出现了转折——直面乡土中的苦涩、野性与粗犷。从乡土写实到乡土表现，体现出画家的情感转折。     

浅谈传统绘画创作中笔墨意境的应用

中国画表现物象，反映生活，有自己独到的价值标准，中国画家对生活中的实体形象在于提炼概括当中，追求的往往不是形象的真实性、典型性；而是形象的概括性和类型性；通过形象的“意似”和“神韵”，揭示其本质特征，传达画家胸中的意。因此，在国画创作过程中，意境手法是画家必备的能力，提高画家自身的精神文化涵养，让情思在活泼的心灵中飞跃，进而跃然纸上传达给观众。     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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-