查询词典 ASA
- 与 ASA 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Nevettheless,152 people said the posters had upset their children, The ASA unheld those complaints,saying the.posters could easily be seen by children.
尽管如此,仍然有152个人表示他们的孩子被这些海报给吓到。广告标准管理局反驳这些投诉说,海报很容易被孩子看见。
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With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.
本论文本着科技创新、服务于生产实践的精神,以设计价格低廉,性能优越、结构合理简单的L-band EDFA为目标,依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目,展开了如下工作:首先,介绍了掺铒光纤放大器的工作原理,归纳总结了基于速率方程基础的EDFA的各种理论模型,分析比较了各个模型的特点和适用场合,最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础;针对实际实验条件提出了修正的EDFA模型的数值计算方法;创新地提出了增益—噪声系数全局分析法,直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系,并对各种EDFA的性能作了全面的比较;第二,介绍了掺铒光纤放大器特性参数的定义与测量方法,重点介绍了噪声系数和增益系数的测量方法及实验装置;介绍了组成掺铒光纤放大器各组件的特性测量方法,重点介绍了测量掺铒光纤参数的方法和实验装置;第三,针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求,我们创新地提出了四种不同的L-band EDFA结构,按设计思路可以分为两大类:一类是基于单抽运二级泵浦法,这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构;基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构;基于单根光纤光栅、泵浦分配、两段级联的EDFA;另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法,如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。
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We present an improved DP-MBE SAM; secondly, un-voice analysis is introduced to the DP-MBESAM, so that the improved ASA system can be used not only to separate concurrent vowels but concurrent speech signals with unvoice as well.
针对基于DP-MBE SAM的混叠浊音听觉场景分析系统存在的问题,提出了改进的基于DP-MBE SAM的混叠语音听觉场景分析系统,包括两部分内容,第一,针对DP-MBE SAM在实际的应用中存在的求解矩阵奇异引起的参数模糊及混叠信号谐波频率相同引起的参数模糊问题,借鉴多帧内插方法,提出了改进的DP-MBE SAM;第二,在基于DP-MBE SAM的混叠浊音听觉场景分析系统加入清音分离环节,将系统的应用从浊音推广到含有清浊音的语音信号。
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The ASA type wallboard is a new type of energy-saving wall material and suitable for apartment buildings.
随着国家对节能减排及可持续发展战略的实施,一种基于ASA的新型建筑材料被引入国内市场。
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When he was in the house, he asked them, \"What were you arguing about on the road \"","makaranes sira do Cyapaynong am, somdep sira do asa ka vahay, maniring si Yeso do macinanao jya am, ikongo
1427,&02&,&09&,33,他们来到迦百农,耶稣在屋里问门徒说:「你们在路上议论的是什麼?
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These indicate that ASA,as a main antioxidant,is maintained and improved by increasing DHAR activity during senescence of apple leaves to imped senescence.
说明在苹果叶片离体衰老过程中,抗氧化剂ASA代谢主要是通过提高DHAR活性来维持其高水平,抵制衰老。
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Faith in equipment has replacedfaith in oneself; a team is admired for the number of bivouacs itmakes, while the courage of those who still climb "free" is derided asa manifestation of lack of conscientiousness.
攀岩者对装备的信赖甚於对自己;而且只要多花了几天在岩壁上露宿就会受到尊敬。同时,那些仍自由攀登的人却被嘲弄不够认真。
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Methods Ninety ASA Ⅰ~Ⅱ patients undergoing UPPP surgery were randomly divided into three groups: F group (fentanyl 10 μg/kg), FL group (fentanyl 5 μg/kg + lornoxicam 0.4 mg/kg), or TL group (tramadol 5 mg/kg + lornoxicam 0.4 mg/kg). The drugs were diluted with normal saline to 100 mL (background 2 mL/h, PCIA bolos 1.5 mL, lockout time 15 min).
90例择期行UPPP的阻塞性睡眠呼吸暂停综合征(obstructive sleep apnea, syndrome, OSAS,即鼾症)患者,ASAⅠ~Ⅱ级,随机分为3组(n=30),F组:芬太尼10μg/kg;FL组:芬太尼5μg/kg+氯诺昔康0.4mg/kg;TL组:曲马多5mg/kg+氯诺昔康0.4mg/kg;每组镇吐药物均为氟哌啶5mg,均以生理盐水稀释至100mL,背景剂量2mL/h,PCIA1.5 mL/次,锁定时间15min。
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1 Asa had an army of three hundred thousand shield-and lance-bearers from Judah, and two hundred and eighty thousand from Benjamin who carried bucklers and were archers, all of them valiant warriors.
阿撒的军队,持盾持戈的犹大人三十万,持牌挽弓的本雅明人二十八万:这些人都是勇士。
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200 forepart pregnant women with ASA Ⅰ~Ⅱgrade who free will stop gestation,they were divided into 4 groups randomly :P group was simplicity propofol; F group, T group and K group was mainlined fentanyl 0.75μg/kg,tramadol 1mg/kg,ketamine0.2mg/kg respective before propofol abduction, and continuous d...
200例ASAⅠ~Ⅱ级、自愿终止妊娠的早孕妇女随机分为四组:P组,单纯异丙酚麻醉组;F组、T组、K组在异丙酚诱导前分别静注芬太尼 0.75μg/kg、曲马多1mg/kg、氯胺酮0.2mg/kg。
- 相关中文对照歌词
- Muévelo
- High As A Mother Fucker
- OH YEAH
- Chimie Intre Noi
- Perih
- Balada Penggangguran
- Narito
- 낯선자 (Stranger)
- Asa Branca
- Hagkan
- 推荐网络例句
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In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.
第二章阐述了光固化树脂结合剂磨具的相关理论研究。
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Do not use the program's indenting or margin-setting features; these will be added during typesetting.
不要使用缩排,页面边缘设置之类的选项,偶看不大懂。
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All booked shows will go on as scheduled with a session bassist.
经历了近10年的巡演生活,因为我个人的原因我选择离开乐队。