圆弧插补对数算法及误差分析

提出了一种采用对数算法的圆弧插补方法，并对插补误差进行了分析，插补软件利用ＭＣＳ－５１汇编语言编制。     

用汇编语言实现PC机与工控机之间通讯的研究

汇编语言具有面向机器、最便于开发高效的设备驱动程序。本文分析了PC机、工控机之间实时通讯的几种方法,着重讨论了RS422、RS485的硬件接口连接和软件的实现。用汇编语言编制的通讯程度具有程序代码短、运行高效性强。对分布式控制系统的研究、开发具有较高的实用价值。     

有助于形象化教学的汇编语言上机习题集的设计

汇编语言是高等学校计算机通讯专业的一门重要专业基础课。本文从上机实践和上机指导各环节 ,试图以可见的辅助手段促进汇编语言的形象教学 ,编制有助于形象化教学的汇编语言上机习题集 ,探讨提高高校汇编语言教学效果的理论和方法     

新型岩体声发射监测系统的研制

介绍一种基于单片机的智能化岩体声发射监测系统的软、硬件设计及其特点。硬件部分以8031单片机为核心,包括模拟电路和数字电路;软件部分采用MCS－51汇编语言编制.     

APPLEⅡ数据采集接口卡和汇编图形软件

本文在简要分析ADCO809模数转换器结构原理基础上,阐明其和APPLEⅡ的连接方法,提出全IC的廉价数据采集接口电路,并用6502汇编语言编制了数据采集,显示地址计算和逐点显示软件。可用于物理实验中瞬态过程和慢变化过程的检测和显示。     

单片机C语言与汇编语言的混合编程

汇编语言的机器代码生成效率高、执行速度快,但可读性却并不强;而C语言的可读性和可移植性却远远超过汇编语言,用C语言开发中大型软件的周期要比用汇编语言短很多。但C语言很难解决高时效性等代码编写的问题。此时便可利用汇编语言来实现。本文便是针对这一问题．详细介绍了单片机C语言与汇编语言混合编程的实现方法。     

用汇编语言实现PC机与工控机之间通讯的研究

汇编语言具有面向机器，最便于开发高效的设备驱动程序。本文分析了ＰＣ机工控机之间实现通讯的几种方法，着重讨论了ＲＳ４２２、ＲＳ４８５的硬件接口连接和软件的实现。用泄编语言编制的通讯程度具有程序代码短，运行高效性强。对分布式控制系统的研究、开发具有较高的实用价值。     

平板显示器用作微机的显示终端

本文分析了CRT显示器的不足,采用平板显示器作为微机的显示终端,研制了支持电致发光显示器的字符/图形卡,实现了混合显示模式。最后,用8088宏汇编语言和高级语言编制了管理软件和显示软件,在电致发光显示器上实现了字符和图形的混合显示。     

一种检测与分析心电波形的算法

介绍了心电图波形自动识别的软件设计,着重讨论了用特征识别法对心电图波形进行检测,并提出了自学习算法,最后给出了１０种常见的心律失常的判别准则．所有软件均用８０９８汇编语言编制完成．实验表明,本软件对提高ＱＲＳ波检测率及一些基本心律失常的诊断具有良好的效果,适用于心电自动监护系统．     

图形液晶显示模块在励磁控制系统中的应用

根据图形液晶显示模块在励磁控制系统中的应用,介绍用AT89C52实现液晶显示模块DMF50174图文显示的软硬件设计方法.硬件采用液晶显示控制器SED1335与DMF50174的直接控制方式;软件采用汇编语言编程实现液晶的初始化和图文显示.该方法硬件接口简单方便,软件采用汇编语言编写,程序执行效率高,有较高的参考价值.     

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-