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现有的YOLO目标检测模型是基于one-stage思想进行多目标的检测，对于双分类检测其有所不足，并且其检测时性能也消耗较大。为了能够在......
The ABCD law of parameter q for fundamental-mode Gaussian beam is deduced in this paper. The result shows that the chang......
研究亚波长负折射光栅透镜的柱矢量光束聚焦效应,探索并分析光栅的材料、几何参数等对聚焦效果的影响。亚波长光栅的-1级衍射效应......
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基于广义的惠更斯-菲涅耳原理得到的部分相干电磁涡旋光束经光阑透镜聚焦后的传输方程, 研究了聚焦场几何焦平面附近的光强分布和......
1. World Englishes and China English Nowadays， English has served as the internationally acknowledged lingua franca wh......
【Abstract】This paper discloses the theoretical basis and historical origin for extensive spread of Marxist philosophy ......
A case study of the language policies in Hubei province， China， with particular focus on the place o
【Abstract】English language learning and teaching have enjoyed a nearly 40 years’ history in China. During this time E......
On the Application of Task—based Language Teaching in Junior High School English Classes Xi’an Inter
【Abstract】Task-based Language Teaching was put forward in 1980s.The present paper aims to make a brief introduction ab......
Abstract:Acquiring the grammar system is vital in the foreign language learning, and there has always been the debate on......
Memory is very important in our daily life and study. Do you know how to improve memory quickly？ Here are some good ways ......
【Abstract】This paper discusses the previous and current research including different hypotheses or models towards inci......
In the past several decades，through the lasting effort of several generations，the English teaching and learning in China h......
1. Introduction Words are the basic foundation of a sentence， and as it is defined by Jensen （1990）： “a study of the int......
【Abstract】Miss Brill is a well-known short story of the English writer Katherine Mansfield who is adept in the descrip......
【Abstract】With the high speed development of modern information technology and the popularity of smart phones among co......
I will readily admit； it took me a long time to grow up. I graduated from Michigan State University in 1980 at the age of......
The COVID-19 pandemic is sweeping the globe， constituting a major test to building a community with a shared future for m......
Bookham公司发布了一款新型单波长紧凑激光控制器,它属于“New Focus SWL-7500”单波长激光器系列的一种。Bookham公司于2003年收......
尽管2008年全球经济增长遇到了油价上涨、消费者信心下滑的影响，但预计激光市场仍将保持增长态势。新型激光设计、成本下降及不断微......
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我想把对手KO，对手也想把我KO。职业拳击最吸引我的就是这种酣畅淋漓的感觉 北京时间4月7日凌晨，澳门威尼斯人金光综艺馆。 这......
不怕分心的写作 写作效率不高的一个重要原因在于，不时会受到屏幕上其他信息的干扰。软件FocusWriter（下载地址：http：//www.dwz.cn/......
美Judson公司造制了两种激光接收器件。锗器件响应波长0.6～1.8微米,D~*_λ≥5x10~(10),频响200兆赫(6伏)。J-16型用TO-18外壳,J-16......
Abstract: Juliana Shak and Sheena Gardner have recently provided information about children’s attitudes towards “focus......
日本工业分析家宣称,在世界光电子元件市场上,日本已超过美国,成为头号国家。对光电子市场,不同观察家有不同的定义,因而对世界市......
汉语的句中语气词作为汉语偏置结构重要的一部分,划分和标记了句子的话题和焦点。对句中语气词本身进行了分类,并详细探讨了其在标......
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It has been reported that transverse distribution shaping can help to further enhance the energy extraction efficiency i......
“每个人的青春乐章中，总会留下动人的旋律和音符。女军人、女飞行学员，是我在自己生命乐章中留下的一笔” 2012年7月29日，华北某......
1. Topics in Focus焦点访谈 2. News Probe新闻调查 3. News in 30 Minutes新闻30分 4. Twelve Studio 12演播室 5. ......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
随着光学投影光刻分辨力的提高，投影物镜的焦深在逐渐缩短。为充分利用物镜有限的焦深，一般采用调焦技术来调整硅片位置。作为调焦的......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
主要阐述了新修订教材与实验稿教材的变化,根据变化来有效教学。
Mainly elaborated the changes of the textbooks and experime......
in the industrial design method, basic user research methods can be divided into many forms, this paper mainly analyzes ......
为了提高TDI-CCD高分辨率空间相机离焦补偿的可靠性,保证相机的图像质量,提出一种多功能调焦控制系统。首先,详细分析离焦补偿的需......
在新时期建设是社会主义核心价值体系是我国当前构建社会主义和谐社会的重要条件，是兴国之魄，是社会主义先进文化的精髓，决定着我国社......
目的研究氨甲苯酸注射液中的特定杂质。方法对样品进行有关物质检查,利用半制备柱从样品中制备杂质,建立UHPLC-Q Exactive Focus M......
制造业服务化日益成为理论界和实践界关注焦点和研究热点,但为什么要实现制造业服务化,何谓制造业服务化,影响因素有哪些等都有待......
