用HD38880语音合成芯片构成的汉语合成器

数字语音合成技术作为语音智能的一部分有着广泛的应用前景,它是利用语音的参数模型,从语音信号中提取若干个参数,存放在固定的内存中,再生时用语音合成芯片还原成语音的,我们的工作是将日语专用的语音合成芯片HD38880移植到汉语上来,获得了满意的效果。本文介绍的汉语合成器是用合成芯片 HD38880以及参数EPROM 等少量硬件制成,合成声音清晰自然,且具有体积小結构简单的特点,在仪器仪表语音智能化、计算机自动应答等方面都可以应用。汉语合成器中参数EPROM的制作直接影响合成声音的自然度。文中将对参数EPROM的研制过程,汉语合成器的硬件結构和软件流程作详细描述,同时对其应用实例“报时时钟”作简要介绍。     

ACM12864J液晶显示器在自动控制仪表中的应用

液晶显示技术重要而且实用，以液晶的光电效应制作的液晶显示器件是信息处理及显示的手段之一。本文重点介绍了ACM12864J显示器及其驱动器HD61202，并给出了一个应用实例。     

高清电视制作的探讨

随着数字化技术迅速发展,社会信息化进程不断加快。作为信息传播重要手段的电视技术从模拟向数字过渡成为必然的发展方向。众所周知,通过模拟技术处理的电视信号存在着信杂比低、多次复制信号损伤严重等无法克服的致命缺点,在对电视节目制作质量要求越来越高的今天,己难以满足人们对图像和声音质量上的需求。为此,本文首先讨论了高清电视发展现状,接着分析了环绕声声音制作技术﹑录制语音技术﹑高清电视拍摄技术和信号传输中的干扰因素,最后研究了非线性编辑在高清电视制作中的应用和明暗对比度与清晰度。因此本文具有深刻的理论意义和广泛的实际应用。     

LVDS技术在数字信号处理实验系统中的应用

本文讨论低电压差分信号(LVDS)技术,结合 LVDS 数据传输卡的设计制作,介绍 LVDS技术在信号处理实验系统中的应用。     

水稻组蛋白脱乙酰化酶HD2 HDACs蛋白质的生物信息学分析

HD2 HDACs家族成员是植物特异性的组蛋白脱乙酰化酶并参与基因的转录调控.本研究利用生物信息学方法对水稻组蛋白脱乙酰化酶HD2 HDACs家族成员(HDT701、HDT702、HDT2201和HDT2202)的生物学功能进行研究.结果表明,HD2 HDACs家族成员位于不同的染色体上,分布于细胞的不同部位;它们编码的蛋白均含有依赖于cAMP-和cGMP的蛋白激酶、蛋白激酶C、酪蛋白激酶II与酰胺化4个相同的位点;它们均无跨膜区,都为不稳定的亲水性蛋白质,都无信号肽.多序列比对发现粳稻与籼稻HD2 HDACs的同源性非常高;水稻HD2 HDACs蛋白质的结构域比较特殊;这些蛋白可能参与植物的基因复制、信号传导、转录过程和免疫应答等过程.     

ROCK1 与CD40相互作用的质谱分析及在CD40信号通路中功能的初探

为鉴定和验证ROCK1和CD40的相互作用,探索ROCK1在CD40通路中可能发挥的作用,应用HD质谱分析ROCK1和CD40的相互作用,用免疫共沉淀实验验证其相互作用, 用ROCK1抑制剂研究ROCK1对CD40通路的影响. 结果ROCK1与CD40存在相互作用;并参与CD40介导的信号通路.说明ROCK1能与CD40发生相互作用,为CD40信号通路的研究提供了新的线索.     

高清晰革命

《星战前传Ⅱ:克隆人的进攻》是美国首部全部采用数码摄像机拍摄的大制作影片,这部无人不知的影片也使得高清晰摄影技术得以名声大噪。但高清晰技术(HD)虽好,却太过昂贵。即便在影像技术发达的日本,全部采用高清晰技术为标准的电视台也只有 NHK电视台一家,因为价格实在太昂贵了。HD 技术何时走下专业的神坛走进民用 DV 领域呢?     

单接口射频信号输出监控摄像机关键芯片研发

利用频分复用技术、电源插入与分离技术和电路微型化技术研究并制作单接口射频信号输出监控摄像机的关键芯片,使摄像机中电源信号与视频信号共用一个接口、且监控输出信号为调制载波频率可调的射频信号；极大提高了监控系统的隐蔽性,节省大量电源线,抗干扰能力更强、封闭性更好、安装更简单.     

Effect of Hedyotis Diffusa on RPMI 8226 Cells Apoptosis

目的:通过对白花蛇舌草(hedyotis diffusa,HD)在体外抑制骨髓瘤细胞株RPMI 8226的增殖作用的观察,探讨HD治疗骨髓瘤患者的作用机制.方法:以多发性骨髓瘤细胞株(RPMI8226)为研究对象,应用MTT法观察不同浓度HD对RPMI 8226细胞增殖的影响作用,用AV/PI流式细胞检测术观察细胞凋亡,Hoechst染色观察形态学改变.结果:HD在1 ～4 mg/mL浓度范围内对RPMI8226细胞有明显的增殖抑制作用,最高抑制率达到了92.68％,呈时间、剂量依赖关系.以1、2、3 mg/mL的HD分别作用RPMI 8226细胞24h后,AV/PI流式细胞仪分析结果显示早期凋亡率分别为:22.52％、62.31％、69.94％,高于空白对照组8.93％.HD诱导RPMI8226细胞凋亡时,细胞核可见凋亡小体,且凋亡小体数量随HD浓度增加而增加.结论:HD在一定浓度下可抑制骨髓瘤细胞增殖,其作用机理可能是诱导细胞凋亡.此实验研究结果为HD作为治疗多发性骨髓瘤的辅助药物提供实验依据.     

电视台制作设备的录制处理技术

在电视新闻、节目和和广告制作过程中,若想视频清晰透亮、色彩艳丽、信号稳定,有细腻的质感、丰富的层次;音频圆润清晰、不出现各种失真故障,信号幅度标准统一。录入制作优良的视音频质量往往比拍摄难度更大,所以掌握电视制作设备的操作技术程序显得十分重要。如何达到广播级高效、高质量、高稳定的录制技术呢？     

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.     

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.     

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     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has