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Commas
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作者 费沃尔 《初中生必读》 2003年第Z2期42-43,共2页
It was a Monday morning.As a teacher walked into the ___1___,he heard a low voice(说话声):"here is the teacher.I am___2___this boring fellow(烦人的家伙)is going to talk about putting in commas(逗号).”It was___3_... It was a Monday morning.As a teacher walked into the ___1___,he heard a low voice(说话声):"here is the teacher.I am___2___this boring fellow(烦人的家伙)is going to talk about putting in commas(逗号).”It was___3___voice.His name was Bill.He was talking__4__the boy next to him. 展开更多
关键词 commas
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基于FPGA的多路光纤数据同步技术 被引量:3
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作者 牛戴楠 史俊宏 +1 位作者 黄鏐 方振发 《雷达与对抗》 2014年第4期39-41,共3页
针对当前相控阵雷达数字TR组件的设计,提出了一种基于光纤信号的同步方法,使得数据传输和雷达主触发同步集成在同一根光纤中,从而省去了传统采用专用触发进行同步控制的大量触发线,简化了相控阵系统有源面阵设计。经在实验板FPGA验证,... 针对当前相控阵雷达数字TR组件的设计,提出了一种基于光纤信号的同步方法,使得数据传输和雷达主触发同步集成在同一根光纤中,从而省去了传统采用专用触发进行同步控制的大量触发线,简化了相控阵系统有源面阵设计。经在实验板FPGA验证,该光纤同步技术能有效实现多板多片FPGA间的信号同步控制及处理,为后续的数字相控阵有源面阵的同步设计提供了更多的选择空间。 展开更多
关键词 光纤数据同步 COMMA字符对齐 高速数据传输
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广义Comma范畴的Recollement
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作者 辛林 郑琳 《数学杂志》 CSCD 北大核心 2016年第4期820-830,共11页
本文研究广义Comma范畴上Recollement问题.利用Abel范畴上Recollement及其伴随函子,诱导出广义Comma范畴,并利用比较函子构造出广义Comma范畴上的Recollement.这些结果推广了一般Abel范畴上的Recollement,丰富了Comma范畴研究.
关键词 广义Comma范畴 ABEL范畴 伴随函子 RECOLLEMENT
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The Use of Punctuation
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作者 马占祥 《内蒙古师范大学学报(哲学社会科学版)》 1999年第S3期11-14,共4页
The purpose of punctuaion is to make the reading of the sentences easier and to make the meaning of the writing clear for readers. But how to use it correctly and what is the real function of it are still problems for... The purpose of punctuaion is to make the reading of the sentences easier and to make the meaning of the writing clear for readers. But how to use it correctly and what is the real function of it are still problems for writers. The following article is that how the punctuation style shows up in liters- ature and how the tiny mark-comma is used in writing. 展开更多
关键词 punctuaion COMMA SENTENCES
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英语逗号(comma)的使用技巧初探
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作者 金品卓 《沈阳工程学院学报(自然科学版)》 1998年第2期31-34,共4页
受汉语标点符号的影响,英语的逗号(comma)经常被用错,但却很少引起英(?)者足够的重视.本文作者在教学实践中总结归纳了以下数条规律,便于大家了解英语逗号的使用方法.
关键词 逗号(comma) 标点符号 规则
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关于拉回函子的一个注记
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作者 钟琴娣 辛林 《武夷学院学报》 2012年第5期12-14,共3页
本文在余Comma范畴上引进拉回函子概念,并讨论了拉回函子的性质.
关键词 余Comma范畴 拉回 函子
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由伴随函子对导出的Comma范畴
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作者 许丽丽 辛林 《宁德师专学报(自然科学版)》 2009年第3期225-227,共3页
设C、D是范畴,F:C→D,G:D→C是共变函子,且(F,G)是一个伴随函子对.对于C中任意给定的对象C.主要研究Comma范畴GC与FF(C)之间的关系.
关键词 Comma范畴 伴随函子对 满子范畴
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基于LabVIEW的串行通信接口设计 被引量:3
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作者 张晖 高萍萍 《通信电源技术》 2020年第4期92-93,102,共3页
针对传统接口误比特率较高的问题,提出基于LabVIEW的串行通信接口设计研究。运用LabVIEW技术对接收端口进行编程设计,利用鉴相器、压控振荡器、环路滤波器等设备实现时钟信号提取,通过Comma序列设计完成串行数据并行,运用多相时钟法实... 针对传统接口误比特率较高的问题,提出基于LabVIEW的串行通信接口设计研究。运用LabVIEW技术对接收端口进行编程设计,利用鉴相器、压控振荡器、环路滤波器等设备实现时钟信号提取,通过Comma序列设计完成串行数据并行,运用多相时钟法实现串并数据转换,通过相位对齐的设计实现XCLK并行时钟与USJDLK并行时钟的同步,以此完成了基于LabVIEW的串行通信接口设计。经实验证明,该接口具有较低的误比特率,能够良好的满足串行数据的通信。 展开更多
关键词 LABVIEW 串行通信接口 压控振荡器 Comma序列
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A 14.5Gb/s word alignment circuit in 0.18μm CMOS technology for high-speed SerDes
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作者 阮伟华 Hu Qingsheng 《High Technology Letters》 EI CAS 2014年第3期328-332,共5页
This paper presents a word alignment circuit for high speed SerDes system.By using pipeline structure and circuit optimization techniques,the speed of the aligner is increased,and its performance is improved further t... This paper presents a word alignment circuit for high speed SerDes system.By using pipeline structure and circuit optimization techniques,the speed of the aligner is increased,and its performance is improved further through adopting the full custom design method.The proposed word aligner has fabricated in 0.18μm CMOS technology with total area of 1.075 ×0.775mm^2 ̄ including I/O pad.Measurement results show that this circuit achieves the maximum data rate of 14.5Gb/s,while consuming a total power of 34.9mW from a 1.8V supply. 展开更多
关键词 comma detection word alignment PIPELINE full custom parallel structure
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The Generalized Pythagorean Comma Harmonic Powers of a Fundamental Frequency Are Equivalent the Standing Wave Harmonic Fraction System
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作者 Donald Chakeres 《Advances in Pure Mathematics》 2018年第7期652-665,共14页
Purpose: The Pythagorean Comma refers to an ancient Greek musical, mathematical tuning method that defines an integer ratio of exponential coupling constant harmonic law of two frequencies and a virtual frequency. A C... Purpose: The Pythagorean Comma refers to an ancient Greek musical, mathematical tuning method that defines an integer ratio of exponential coupling constant harmonic law of two frequencies and a virtual frequency. A Comma represents a physical harmonic system that is readily observable and can be mathematically simulated. The virtual harmonic is essential and indirectly measurable. The Pythagorean Comma relates to two discrete frequencies but can be generalized to any including infinite harmonics of a fundamental frequency, vF. These power laws encode the physical and mathematical properties of their coupling constant ratio, natural resonance, the maximal resonance of the powers of the frequencies, wave interference, and the beat. The hypothesis is that the Pythagorean power fractions of a fundamental frequency, vF are structured by the same harmonic fraction system seen with standing waves. Methods: The Pythagorean Comma refers to the ratio of (3/2)12 and 27 that is nearly equal to 1. A Comma is related to the physical setting of the maximum resonance of the powers of two frequencies. The powers and the virtual frequency are derived simulating the physical environment utilizing the Buckingham Π theorem, array analysis, and dimensional analysis. The powers and the virtual frequency can be generalized to any two frequencies. The maximum resonance occurs when their dimensionless ratio closest to 1 and the virtual harmonic closest to 1 Hz. The Pythagorean possible power arrays for a vF system or any two different frequencies are evaluated. Results: The generalized Pythagorean harmonic power law for any two different frequencies coupling constant are derived with a form of an infinite number of powers defining a constant power ratio and a single virtual harmonic frequency. This power system has periodic and fractal properties. The Pythagorean power law also encodes the ratio of logs of the frequencies. These must equal or nearly equal the power ratio. When all of the harmonics are powers of a vF the Pythagorean powers are defined by a consecutive integer series structured in the identical form as standard harmonic fractions. The ratio of the powers is rational, and all of the virtual harmonics are 1 Hz. Conclusion: The Pythagorean Comma power law method can be generalized. This is a new isomorphic wave perspective that encompasses all harmonic systems, but with an infinite number of possible powers. It is important since there is new information: powers, power ratio, and a virtual frequency. The Pythagorean relationships are different, yet an isomorphic perspective where the powers demonstrate harmonic patterns. The coupling constants of a vF Pythagorean power law system are related to the vFs raised to the harmonic fraction series which accounts for the parallel organization to the standing wave system. This new perspective accurately defines an alternate valid physical harmonic system. 展开更多
关键词 Power LAWS HARMONIC Systems STANDING Wave HARMONIC FRACTIONS Dimensional Analysis Buckingham Pi Theorem PYTHAGOREAN COMMA
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Comma和Dash用法小议
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作者 李卫荣 于艳红 《大学英语》 2000年第11期45-46,共2页
关键词 破折号 同位语 COMMA
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The“Dragging Foot”of Jose Garcia Villa’s Performative“Comma Poems”
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作者 Katie Bradshaw 《Journal of Foreign Languages and Cultures》 2022年第2期121-131,共11页
Jose Garcia Villa’s "comma poem,"in which he introduces“a new,special and poetic use”for the comma,is arguably the poet's most contentious innovation.Starting from an appropriation of Leonard Caspar’... Jose Garcia Villa’s "comma poem,"in which he introduces“a new,special and poetic use”for the comma,is arguably the poet's most contentious innovation.Starting from an appropriation of Leonard Caspar’s description of the comma poems as "demonstrably malfunctional as a dragging foot,"this essay argues that the comma poem was a visual performance whereby Villa dis-oriented and de-naturalized poetic“flows”through a quccr/crip aesthetic of hesitation and brokenness.Read as footsteps and/or footnotes,the comma’s minor mark interrupts and dis-ablcs normative flow,forcing the reader to adopt a nonnormative“gait.”Utilizing Sara Ahmed’s phenomenological theory of "queer orientation,"I examine how the comma poems’specific incongruity extends beyond modem grammars:anticipating readings of his“foreignness”and"insensitivity"to the English language.Villa performs the essentiality of the“minor mark”through linguistic experimentation.In doing so,he queers not only the“direction”of modem poetry and its canonicity,but also a contemporary politics of recuperation. 展开更多
关键词 JoséGarcia Villa modernist poetry commas Sara Ahmed queer/erip theory
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Withdraw:Preparation of Papers for Additive Manufacturing Frontiers
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作者 Editorial Office Given Name Surname +1 位作者 Given Name Surname Given Name Surname 《Chinese Journal of Mechanical Engineering(Additive Manufacturing Frontiers)》 2023年第4期122-123,共2页
These instructions are guidelines for preparing papers for Journal of Additive Manufacturing Frontiers(CJEE:AMF).The length of your paper are at least 7 pages(The review length should be more than 10 pages).Please do ... These instructions are guidelines for preparing papers for Journal of Additive Manufacturing Frontiers(CJEE:AMF).The length of your paper are at least 7 pages(The review length should be more than 10 pages).Please do not be less than these limitations.Use this document as a template if you are using Word 2013 or later.Or,use this document as an instruction set.The manuscript of yours will be formatted further at Format-ting guidelines.(Note:Abstract should include all key elements like background,objective,methods,results,and conclusions.Define all symbols used in the abstract.Do not cite references,nor use formulas,figures and tables in the abstract.). 展开更多
关键词 or phrases in alphabetical order separated by commas no adjective three to five words is preferred
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Comma范畴与完全范畴 被引量:1
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作者 杨晓红 陈清华 《福建师范大学学报(自然科学版)》 CAS CSCD 北大核心 2016年第5期1-5,共5页
探讨Abel范畴和的(半)完全性与它们的Comma范畴F的(半)完全性之间的关系,得到了Abel范畴和是(半)完全范畴当且仅当F是(半)完全范畴.并将其应用在环上,得到了环R和环S是(半)完全环当且仅当环Λ=R 0()M S是(半)完全环.
关键词 ABEL范畴 Comma范畴 (半)完全范畴 (半)完全环
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Special precovering classes in comma categories 被引量:4
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作者 Jiangsheng Hu Haiyan Zhu 《Science China Mathematics》 SCIE CSCD 2022年第5期933-950,共18页
Let T be a right exact functor from an abelian category B into another abelian category A.Then there exists a functor p from the product category A×B to the comma category(T↓A).In this paper,we study the propert... Let T be a right exact functor from an abelian category B into another abelian category A.Then there exists a functor p from the product category A×B to the comma category(T↓A).In this paper,we study the property of the extension closure of some classes of objects in(T↓A),the exactness of the functor p and the detailed description of orthogonal classes of a given class p(X,Y)in(T↓A).Moreover,we characterize when special precovering classes in abelian categories A and B can induce special precovering classes in(T↓A).As an application,we prove that under suitable conditions,the class of Gorenstein projective leftΛ-modules over a triangular matrix ringΛ=(R M 0 S)is special precovering if and only if both the classes of Gorenstein projective left R-modules and left S-modules are special precovering.Consequently,we produce a large variety of examples of rings such that the class of Gorenstein projective modules is special precovering over them. 展开更多
关键词 abelian category comma category special precovering class cotorsion pair Gorenstein projective object
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广义Comma范畴的局部化
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作者 郑琳 辛林 《福建师范大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第2期1-5,共5页
借由两个函子诱导出广义Comma范畴,并找到该范畴中的局部类,从而建立局部化范畴.在此基础上,根据局部化范畴所对应标准函子的泛性得到的两个函子可诱导出另一个广义Comma范畴.最后证明该范畴与前面所建立的局部化范畴是等价的.
关键词 广义Comma范畴 局部化 标准函子
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向Photoshop致敬·快捷键 成为PS钢琴家 被引量:1
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作者 刘可为 《摄影之友》 2014年第3期106-107,共2页
有没有想过如何让旁人对你的后期技术加以膜拜,靠PS出完美的照片么?你错了,最简单有效地速成方式就是将快捷键烂熟于心。使用PS的时候左手在键盘上飞舞右手操作鼠标,双眼认真地看着屏幕的时候,即使你的后期技术再一般,也会羡煞旁人。你... 有没有想过如何让旁人对你的后期技术加以膜拜,靠PS出完美的照片么?你错了,最简单有效地速成方式就是将快捷键烂熟于心。使用PS的时候左手在键盘上飞舞右手操作鼠标,双眼认真地看着屏幕的时候,即使你的后期技术再一般,也会羡煞旁人。你要知道的常用功能在了解快捷键之前,你最需要知道的就是,在PS中哪些功能是最常用的,之后针对功能记住快捷键。了解常用功能后,才可以有针对性地开始默背下快捷键。别对自己太有自信,妄图记住所有的键位。记下常用的功能就足矣在旁人面前"露一手"了,而且这些快捷键里也有十分相似的, 展开更多
关键词 常用功能 左手小指 PS PHOTOSHOP 单手操作 左手中指 向下合并 复制图 色阶 COMMA
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