focus相关论文
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......
目的 讨论Focus(Field of view Constrained Undistorted Single-shot)技术在儿童胰腺病变中的应用与价值,并与普通DWI扫描进行对......
会议
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......
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......
【Abstract】Jane Austen （1775—1817），the famous writer in the early 19th century，she was well-known and regarded as one of f......
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......
目的对氨甲苯酸注射液的日晒降解产物进行研究。方法考察日晒对氨甲苯酸注射液有关物质和pH值的影响,建立UHPLC-Q Exactive Focus ......
Miniature single-photon microscopes have been widely used to image neuronal assemblies in the brain of freely moving ani......
<strong>Purpose:</strong> To clinically evaluate a new extended depth of focus intraocular lens (ISOPURE, PhysIOL) with ......
China\s technological research capabilities haveseen a steady growth from 2014 to 2019,according to 2021 Technology Foc......
We report a simple-to-perform technique to investigate the distribution of the azimuthal magnetic field induction,Bθ,an......
The COVID-19 pandemic is sweeping the globe， constituting a major test to building a community with a shared future for m......
本文研究了具有对称实焦点的分段线性类-Liénard系统的穿越周期轨.通过把系统约化成一个有更少参数的正规形并构造左右子系统的Po......
人类文明的演化以材料的跟进为标志。石器、青铜、铁器的相替代,蒸汽、电气、信息的相递进。就这样,一步步从混沌初开走进了信息时......
引言:从前,有一位捕鸟人见天空中有一群鸟儿即将飞过,便布下了罗网等待着。不一会儿,鸟儿飞进来,一下子被捕获了。这位捕鸟人收网......
重庆长安福特，一汽马自达，好象不着边际的关系，马自达Mazda 3怎么会在重庆长安福特下线，其实福特集团自1979年入股马自达公司。就在为......
理论上，大改换代的新一代车型肯定比上一代要好很多，车子的外形更漂亮、空间更大，性能更强，新技术、新装备也更多。道理很简单，科技在进......
<正> Under the guidauce of Prof. Chin Yuanshun, the author has studied a conjecture in the 16th problem of Hilbert’s &#......
分析和讨论了基模高斯激光束经适镜系统的聚焦及衍射的影响问题,给出了在光学系统设计中有实用价值的结论。......
期刊
The ABCD law for the complex parameter q of the TEM00 Gaussian beam is generally not valid for high-order modes. It can ......
【正】 Chlorfluazuron is a new insecticide withhigh effectiveness,low toxicity,low residueand environmental friendliness......
A 2.2-kJ compact plasma focus device was developed and its characteristics of neutron emission were investigated. A maxi......
中国自古就有为出嫁女儿陪送嫁妆的习俗。时代不同,陪嫁的内容也不同。旧时代的嫁妆有很多讲究。二十世纪六七十年代陪嫁“三大件......
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view......
The journal Science China Chemistry published 63 papers in polymer fields in 2010,leading to a percentage increase of 47......
过去的一年似乎是小型汽车在美国市场的翻身年。厂家们排着队推出小型新车;美国政府的“旧车换现金”政策也立竿见影式的提高了小......
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view......
下一代福特Focus以自适应安全气囊为特点来改善正面碰撞保护。OEM声称该技术将在未来几年推广应用到福特其他计划车型上。这项技术......
2013年9月25日,全球领先的特种化学品公司伊士曼化工公司旗下胶粘剂及增塑剂业务部门,携其先进的产品和技术亮相在广州举办的第16......
Autism spectrum disorder(ASD) is gathering concerns in socially developed countries. ASD is a neuropsychiatric disorder ......
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view......
Main Columns:Focus Chinese Market Global Market Industry Trend Foreign Company in China Intending Projects Statistics Ne......
配置升级和外形重新设计,是福克斯此次中期改款的最大亮点。新款福克斯更换了阿斯顿·马丁式的前格栅,前后大灯和前后保险杠都经过......
要想找到一款极具驾乘乐趣、既省油又实惠的车型实属不易,但全新2014马自达3(Mazda3)完全满足了这些需求,不仅是测试者评出的小型......
