{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"运用弱散射体产生的部分显现散斑场相位差自由标准偏差的近似表达式,分析了双会聚透镜组成的成像系统产生的部分显现高斯散斑场相位差的自由统计分布.","authors":[{"authorName":"汪千凯","id":"382a85e7-5889-4ad7-827e-43c87e072ed5","originalAuthorName":"汪千凯"}],"doi":"10.3969/j.issn.1007-5461.2004.05.007","fpage":"583","id":"88bd3506-faf1-416b-b61c-dd515146386e","issue":"5","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"ba51078c-2fe0-477b-b813-14a84312ad1e","keyword":"散斑","originalKeyword":"散斑"},{"id":"aee83c4e-d015-465a-84a6-20eb8989f365","keyword":"双会聚透镜成像系统","originalKeyword":"双会聚透镜成像系统"},{"id":"2496d5bd-dd86-493a-95fc-234b5be83a1e","keyword":"像场散斑场","originalKeyword":"像场散斑场"},{"id":"7d1be2e1-a51f-4097-b5d8-f89155878290","keyword":"相位差统计性质","originalKeyword":"相位差统计性质"}],"language":"zh","publisherId":"lzdzxb200405007","title":"像场散斑场相位差的统计性质","volume":"21","year":"2004"},{"abstractinfo":"为提供一种能够全场测量整个焊接过程动态位移场的工具,建立了激光电子散斑法测量系统.应用于实际TIG焊接过程中,获得了焊接位移场的散斑原始图像.利用自开发软件,对图像进行灰度变换和直方图均衡化处理后,采用频域同态滤波的方法对图像进行降噪滤波处理.经降噪、二值化、细化、平整、拟合、标定等一系列处理后,即可自动生成相对动态位移场.结果表明,激光电子散斑法能够胜任焊接动态位移场的测量,且具有非接触、测量精度高、对环境的防震要求低、可在明光下操作、能进行全场测量的特点.","authors":[{"authorName":"陶军","id":"4ec459bd-896f-4103-842b-82cce4a3638d","originalAuthorName":"陶军"},{"authorName":"李冬青","id":"e90ccabf-7644-4cc2-b80a-80df38d8122b","originalAuthorName":"李冬青"},{"authorName":"方洪渊","id":"d6564e79-478e-4564-a26c-635bbb4bcf96","originalAuthorName":"方洪渊"},{"authorName":"王凯","id":"730c91cd-c5aa-4bc8-8469-e1896830e25d","originalAuthorName":"王凯"}],"doi":"10.3969/j.issn.1005-0299.2006.02.019","fpage":"178","id":"5d2ecd65-722e-4391-9e4d-dcaa206371ca","issue":"2","journal":{"abbrevTitle":"CLKXYGY","coverImgSrc":"journal/img/cover/CLKXYGY.jpg","id":"14","issnPpub":"1005-0299","publisherId":"CLKXYGY","title":"材料科学与工艺"},"keywords":[{"id":"cc928d5c-de27-4c9d-9a4a-a1772c5ad3dc","keyword":"激光电子散斑法","originalKeyword":"激光电子散斑法"},{"id":"715378ef-bf3c-4ae7-a906-7eec7517f43a","keyword":"焊接动态位移场","originalKeyword":"焊接动态位移场"},{"id":"0f618c03-6948-47c6-9448-fc760ed9ba72","keyword":"同态滤波","originalKeyword":"同态滤波"}],"language":"zh","publisherId":"clkxygy200602019","title":"焊接动态位移场的激光电子散斑法测量","volume":"14","year":"2006"},{"abstractinfo":"简述了散斑的形成机理,具体分析了在近场条件下通过降低激光的时间或空间相干性来抑制散斑的方法,以及仅通过降低激光的相干性来减弱激光显示中散斑的缺陷.提出一种全新在远场条件下减弱散斑的超声光栅法,且详细说明了超声波减弱散斑的工作原理.当合成的激光束通过因超声波在液体媒介中的传播而形成的\"位相光栅\"时,激光发生衍射,通过一系列透镜将所有衍射光完全会聚到投影屏幕上,投影移动的干涉条纹在屏幕上产生\"沸腾\"的散斑图样,考虑到人眼的视觉暂留特性,散斑在人眼中得到均匀化.以绿光为例,说明了激光束通过\"位相光栅\"时,经过CCD相机和图像处理系统,显示屏幕上散斑对比度和光强的变化,显示了超声光栅法有效地抑制了激光显示中的散斑现象.","authors":[{"authorName":"李霞","id":"de515bda-1e26-4a3a-9dc6-c379b6a20788","originalAuthorName":"李霞"},{"authorName":"郝丽","id":"38b32b4b-d87b-49d3-9b39-769c026251a6","originalAuthorName":"郝丽"},{"authorName":"刘伟奇","id":"cf3f0553-e132-4572-8e65-97aea0afe924","originalAuthorName":"刘伟奇"},{"authorName":"柳华","id":"79e956f7-b1b3-42d0-a614-c9a87c427424","originalAuthorName":"柳华"},{"authorName":"冯睿","id":"e311b5a6-393b-489f-8240-5a502a4a59c1","originalAuthorName":"冯睿"},{"authorName":"魏忠伦","id":"857da766-aebd-441d-a08a-4dd7974a1d09","originalAuthorName":"魏忠伦"},{"authorName":"张岳","id":"bbc83798-c3c3-44ff-b551-941e9092e221","originalAuthorName":"张岳"},{"authorName":"田志辉","id":"1c75f399-1c9a-43be-a841-edfc69875551","originalAuthorName":"田志辉"}],"doi":"10.3969/j.issn.1007-2780.2007.03.017","fpage":"320","id":"c6b65387-2030-48ea-886c-200539757abe","issue":"3","journal":{"abbrevTitle":"YJYXS","coverImgSrc":"journal/img/cover/YJYXS.jpg","id":"72","issnPpub":"1007-2780","publisherId":"YJYXS","title":"液晶与显示 "},"keywords":[{"id":"98b34484-011b-48c4-a676-63a47051cf10","keyword":"激光显示","originalKeyword":"激光显示"},{"id":"47d7c09b-8012-4e45-9e26-e43540fa9b85","keyword":"激光散斑","originalKeyword":"激光散斑"},{"id":"ddf035be-fa4a-4916-8a71-7b4e84d24bc3","keyword":"散斑减弱","originalKeyword":"散斑减弱"},{"id":"f1b007df-e871-4137-83f0-e2e90fccf1d9","keyword":"超声光栅","originalKeyword":"超声光栅"}],"language":"zh","publisherId":"yjyxs200703017","title":"激光显示中散斑减弱的研究","volume":"22","year":"2007"},{"abstractinfo":"为了探究无导叶对转涡轮进口热斑径向作用位置的变化对其高压级温度场的影响,运用CFD方法对某无导叶对转涡轮模型级的流场进行了三维非定常多叶片排的数值模拟.结果表明,热斑流体在高压导叶中未发生周向和展向迁移;进口热斑径向作用位置的差异直接影响到热斑流体通过涡轮叶片时的温度耗散度;进口热斑径向作用位置的变化对高压动叶中控制热斑迁移的冷热气流掺混效应、通道二次流和浮力三种因素的作用效果产生了一定程度的影响.","authors":[{"authorName":"赵庆军","id":"55636a78-c842-49d3-9bf6-2f4bc391aaca","originalAuthorName":"赵庆军"},{"authorName":"杨中","id":"9b8ecd64-d783-4d97-ad5d-599862d5f7cf","originalAuthorName":"杨中"},{"authorName":"王会社","id":"938b9508-d7a3-47d5-80a3-afda57a8c50e","originalAuthorName":"王会社"},{"authorName":"赵晓路","id":"3102ea74-f88b-4b9b-bd39-dbd26f20156d","originalAuthorName":"赵晓路"},{"authorName":"徐建中","id":"cd9dd80e-a4c3-4ea5-b21a-2bc212b4a108","originalAuthorName":"徐建中"}],"doi":"","fpage":"1649","id":"46b42e23-9937-46ff-94c5-26c4f5888a8f","issue":"10","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"d8c71028-8a7d-4eb7-be91-af2f18a18c59","keyword":"对转涡轮","originalKeyword":"对转涡轮"},{"id":"45004c04-e5b7-4d94-bd77-be3e4e22f586","keyword":"热斑","originalKeyword":"热斑"},{"id":"ee133af2-9daf-49ce-b7fa-1cc136d28814","keyword":"二次流","originalKeyword":"二次流"},{"id":"b7026aa4-a1d8-4e70-8580-55dc3a136b9f","keyword":"浮力","originalKeyword":"浮力"}],"language":"zh","publisherId":"gcrwlxb200810008","title":"进口热斑径向作用位置对无导叶对转涡轮高压级温度场的影响","volume":"29","year":"2008"},{"abstractinfo":"为了探究无导叶对转涡轮进口热斑径向作用位置的变化对其低压级温度场的影响,运用CFD方法对某无导叶对转涡轮模型级的流场进行了三维非定常多叶片排的数值模拟.结果表明,进入低压动叶中的热斑流体的迁移特性主要由通道二次流控制;进口热斑径向作用位置的变化将直接影响到低压动叶中的通道二次流结构,转子通道中的二次流与涡轮进口热斑直接相关;进口热斑径向作用位置的变化将对低压动叶吸力面上的附加高温区的强度产生显著影响.","authors":[{"authorName":"赵庆军","id":"95c59476-1a15-4d47-b696-eab384a09c28","originalAuthorName":"赵庆军"},{"authorName":"王会社","id":"f6e8824a-6154-46e9-a81f-244107da646d","originalAuthorName":"王会社"},{"authorName":"赵晓路","id":"f740accd-4736-4ef2-930c-62b6895f1dce","originalAuthorName":"赵晓路"},{"authorName":"徐建中","id":"7209cabd-2275-4a47-8acb-fa06be08a3e7","originalAuthorName":"徐建中"}],"doi":"","fpage":"214","id":"f7e1f388-295f-4d43-ae3b-e865afadd922","issue":"2","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"d9cb6e8a-27e4-4201-91e8-eec7ad0f8948","keyword":"对转涡轮","originalKeyword":"对转涡轮"},{"id":"49dfdae8-9e74-4f57-868b-a1f1d2447f7a","keyword":"热斑","originalKeyword":"热斑"},{"id":"fdcc3ee0-5e21-446f-95b1-b2c1e9f93adb","keyword":"二次流","originalKeyword":"二次流"},{"id":"ea3cd30a-bd98-4b0e-b505-3d7936bb3e30","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"gcrwlxb200902009","title":"进口热斑径向作用位置对无导叶对转涡轮低压级温度场的影响","volume":"30","year":"2009"},{"abstractinfo":"激光显示中,散斑的存在严重影响了画面质量,降低了图像的清晰度.文章阐述了散斑的形成机理,简要介绍了减弱散斑可采取的多种方法,详细介绍了引入旋转光纤对于减弱散斑噪声的作用,并以绿光为例用实验验证了此法的可行性.光纤的引入一方面利于激光传输,减小了能量损失,而且光纤的旋转使得散斑结构不断变化,屏幕上形成\"沸腾\"的散斑,散斑结构的叠加使散斑的对比度有了显著的降低.","authors":[{"authorName":"李霞","id":"3a7ca005-6d16-4735-885c-2458136c22e1","originalAuthorName":"李霞"},{"authorName":"刘伟奇","id":"6c6d5871-f019-499f-b103-6fbbcdf9abd7","originalAuthorName":"刘伟奇"},{"authorName":"田志辉","id":"bbda51bb-ae85-41b1-b675-bf374b9bde89","originalAuthorName":"田志辉"},{"authorName":"冯睿","id":"b96603b4-1b9f-4abb-ba65-cc93b0024e25","originalAuthorName":"冯睿"},{"authorName":"柳华","id":"fd8d2e15-5963-4359-9e4b-cc330829fe3d","originalAuthorName":"柳华"},{"authorName":"魏忠伦","id":"867dd38b-51a5-4e23-ae2b-33dd29d5c41e","originalAuthorName":"魏忠伦"}],"doi":"10.3969/j.issn.1007-2780.2008.02.006","fpage":"153","id":"c4ddeb7e-b723-4d19-ba80-275f18c40f58","issue":"2","journal":{"abbrevTitle":"YJYXS","coverImgSrc":"journal/img/cover/YJYXS.jpg","id":"72","issnPpub":"1007-2780","publisherId":"YJYXS","title":"液晶与显示 "},"keywords":[{"id":"83ede06d-d8be-499d-a045-597b0d2349cf","keyword":"激光显示","originalKeyword":"激光显示"},{"id":"142588de-0db4-4720-b692-7da838ce1baf","keyword":"散斑","originalKeyword":"散斑"},{"id":"351c68a7-7f87-4a84-821b-0e365fbddccb","keyword":"对比度","originalKeyword":"对比度"},{"id":"27acb69c-3830-4a51-8a2e-35d32da27df1","keyword":"光纤","originalKeyword":"光纤"}],"language":"zh","publisherId":"yjyxs200802006","title":"激光显示中散斑对比度的降低","volume":"23","year":"2008"},{"abstractinfo":"根据散射屏移动时动态主观散斑时间相关公式,分析了成像系统主要参数对动态主观散斑时间相关性的影响,一般情况下屏表面参数对散斑的时间相关性影响较小;激光光斑大于成像系统物面分辨斑时,散斑时间相关性由透镜孔径大小决定;激光光斑小于成像系统物面分辨斑的尺寸时,减小激光光斑尺寸能减弱散斑时间相关性.对以上结果进行了相关的理论模拟和部分实验验证,通过模拟发现,激光光斑小于成像系统物面分辨斑时,散斑时间相关长度和光斑尺寸大小成正比.结论对于激光投影系统中利用时间平均进行的散斑抑制具有指导意义.","authors":[{"authorName":"常宏","id":"ac6459af-03da-4820-9166-cf52bf7b399b","originalAuthorName":"常宏"},{"authorName":"杨福贵","id":"66623b94-ed1a-45d6-af4e-406e80fffa76","originalAuthorName":"杨福贵"},{"authorName":"董磊","id":"dbe5245d-7685-4ee4-b331-e10632ef669f","originalAuthorName":"董磊"},{"authorName":"王安廷","id":"cd404f9b-c7b8-43ac-b0c5-6ae1583b59da","originalAuthorName":"王安廷"},{"authorName":"谢建平","id":"0120601c-7f70-425f-88d5-f2e3198d1bcf","originalAuthorName":"谢建平"},{"authorName":"明海","id":"2353acfb-1c20-4443-9de7-b811970d654c","originalAuthorName":"明海"}],"doi":"10.3969/j.issn.1007-5461.2010.03.006","fpage":"288","id":"7df2c131-78a5-42d6-91c6-ccecaa963daf","issue":"3","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"5cedc84b-ec0c-4982-b1d6-b6b09c7e5e82","keyword":"激光技术","originalKeyword":"激光技术"},{"id":"b429ee95-fa69-4ee8-874d-5e078a52e210","keyword":"动态主观散斑","originalKeyword":"动态主观散斑"},{"id":"4c25a17f-f183-4de8-a879-5368868722fb","keyword":"时间相关性","originalKeyword":"时间相关性"},{"id":"2666d895-82bc-4e16-9b16-f944840edb49","keyword":"表面粗糙度","originalKeyword":"表面粗糙度"}],"language":"zh","publisherId":"lzdzxb201003006","title":"动态主观散斑的时间相关性研究","volume":"27","year":"2010"},{"abstractinfo":"本文介绍了场发射高分辨电子显微像的图像处理原理,用300 kV场发射电子显微镜的参数模拟了GaN完整晶体和缺陷晶体结构模型的显微像.经过处理的显微像上能够分辨间距为0.112nm的Ga和N原子,并能显示N原子空位.","authors":[{"authorName":"王怀斌","id":"9e7b5b70-f128-4224-b1ca-8e84a66d575e","originalAuthorName":"王怀斌"},{"authorName":"李方华","id":"66d19434-4bfd-4c44-b808-37917a47c8ff","originalAuthorName":"李方华"}],"categoryName":"|","doi":"","fpage":"589","id":"26cb96c3-85a6-4714-b067-90bc7d978a76","issue":"6","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"b5b5510b-f383-466e-898a-98fb75c20af8","keyword":"GaN","originalKeyword":"GaN"},{"id":"090d4cbd-b2d4-4a17-a76c-0bb02309b3c7","keyword":"null","originalKeyword":"null"},{"id":"2ad09183-e0fe-4545-a602-53bdf0a8c6e4","keyword":"null","originalKeyword":"null"}],"language":"zh","publisherId":"0412-1961_2002_6_4","title":"GaN场发射高分辨电子显微像的图像处理-显示GaN中原子分辨率晶体缺陷的可能性","volume":"38","year":"2002"},{"abstractinfo":"本文介绍了场发射高分辨电子显微像的图像处理原理,用300 kV场发射电子显微镜的参数模拟了GaN完整晶体和缺陷晶体结构模型的显微像.经过处理的显微像上能够分辨间距为0.112nm的Ga和N原子,并能显示N原子空位.","authors":[{"authorName":"王怀斌","id":"c0539200-42d1-4ab3-b28a-31a7a870074f","originalAuthorName":"王怀斌"},{"authorName":"李方华","id":"37889fc0-3c57-47f6-a367-4d67bf7b2988","originalAuthorName":"李方华"}],"doi":"10.3321/j.issn:0412-1961.2002.06.006","fpage":"589","id":"d2e7ade4-876e-46b5-99b0-6681442c6ef3","issue":"6","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"66ff5a0c-fd61-4894-ba1d-f26aea40359c","keyword":"GaN","originalKeyword":"GaN"},{"id":"fbbff452-f619-49bf-9d61-65393f4a7da8","keyword":"晶体缺陷","originalKeyword":"晶体缺陷"},{"id":"fcef5a93-3fc7-45c6-a48e-68eb2516d363","keyword":"高分辨电子显微学","originalKeyword":"高分辨电子显微学"},{"id":"aef9e57a-bfd7-46d7-b3be-f46ba220bc7c","keyword":"场发射电子显微镜","originalKeyword":"场发射电子显微镜"},{"id":"712cc72d-d56e-41d7-9199-1f483fd006c3","keyword":"解卷处理","originalKeyword":"解卷处理"}],"language":"zh","publisherId":"jsxb200206006","title":"GaN场发射高分辨电子显微像的图像处理-显示GaN中原子分辨率晶体缺陷的可能性","volume":"38","year":"2002"},{"abstractinfo":"根据粒子的光散射、散斑成像理论,建立了两相流动粒子相对数量浓度与粒子散斑图像强度之间的线性关系,通过数字图像分析和处理技术进行污染扩散相对瞬时全场浓度的测量.利用粒子散斑成像测量原理自行设计了大范围瞬时浓度场测量系统,并利用该系统对烟雾扩散的瞬时浓度场进行了实际测量.","authors":[{"authorName":"卢曦","id":"1ccd35b0-7b8f-41e3-89f7-9959334242c6","originalAuthorName":"卢曦"},{"authorName":"吴文权","id":"da991f68-0f7f-46f6-bc51-330037af8e31","originalAuthorName":"吴文权"}],"doi":"","fpage":"587","id":"0b78bcf8-abb5-4344-9553-de5287c85c9b","issue":"4","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"9b2bc29d-b298-4248-8739-af478382d169","keyword":"瞬时浓度场","originalKeyword":"瞬时浓度场"},{"id":"b09481b6-7e06-45ec-95d5-8595b472b27e","keyword":"粒子散射","originalKeyword":"粒子散射"},{"id":"d96b3ff6-f8a2-4d42-a298-4b43062bbc5c","keyword":"测量方法","originalKeyword":"测量方法"},{"id":"d4bc4e33-1e33-4d6e-bbc8-1f24ce974a6a","keyword":"数字图像处理","originalKeyword":"数字图像处理"}],"language":"zh","publisherId":"gcrwlxb200504014","title":"瞬时浓度场的激光片光测量研究","volume":"26","year":"2005"}],"totalpage":819,"totalrecord":8183}