{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"为了实现光的非互易效应,本文设计了四种周期性结构的一维光子晶体,利用基于旋磁材料的传输矩阵公式,计算结构的传输谱.通过外加磁场的作用,破坏系统的时间<span style=\"color:red\">反演对称</span>.研究发现时间<span style=\"color:red\">反演对称</span>的破缺必须结合<span style=\"color:red\">空间</span>结构<span style=\"color:red\">对称</span>的破缺,才可实现单向传输,并且这种<span style=\"color:red\">对称</span>性破坏的越严重,正反方向透射谱的分离度越高.旋磁材料作为一维光子晶体缺陷层,不仅结构简单,而且正向透射率接近100％.在入射角为45°时,正反方向透射消光比在缺陷层厚度为400 μm时达到最大值0.98.","authors":[{"authorName":"徐青松","id":"1127ba09-b502-4fec-8ef4-d4a8cb8b4f73","originalAuthorName":"徐青松"},{"authorName":"方云团","id":"68786e97-5263-493a-844f-2eb0c01edc4a","originalAuthorName":"方云团"},{"authorName":"周骏","id":"1c4986ee-15cb-4711-a843-970e6c88cd28","originalAuthorName":"周骏"}],"doi":"","fpage":"1131","id":"129517b8-3895-457c-8df1-5a0aa9a375f0","issue":"4","journal":{"abbrevTitle":"RGJTXB","coverImgSrc":"journal/img/cover/RGJTXB.jpg","id":"57","issnPpub":"1000-985X","publisherId":"RGJTXB","title":"人工晶体学报"},"keywords":[{"id":"99154955-b139-44c6-8027-b3a9f439ab32","keyword":"非互易效应","originalKeyword":"非互易效应"},{"id":"f60bdca1-82c8-4651-b902-150b94b13034","keyword":"旋磁材料","originalKeyword":"旋磁材料"},{"id":"ebacb555-9b54-47a2-b2df-3a111e0f0847","keyword":"时间<span style=\"color:red\">反演对称</span>","originalKeyword":"时间反演对称"},{"id":"34cfb087-378d-43d9-aaae-b8a756402a7b","keyword":"<span style=\"color:red\">空间反演对称</span>","originalKeyword":"空间反演对称"},{"id":"af6d8487-9f5f-494b-9d1c-b226d947a57c","keyword":"消光比","originalKeyword":"消光比"}],"language":"zh","publisherId":"rgjtxb98201604049","title":"基于旋磁材料一维光子晶体单向传输","volume":"45","year":"2016"},{"abstractinfo":"运用BDG近似,在引入相对论效应的基础上,运用微扰理论给出高温超导体中二向色性起源的一般提法.同时,在混合波理论框架下,对其中由于超导序参量时间<span style=\"color:red\">反演</span>不<span style=\"color:red\">对称</span>性引起的自发二向色性进行具体讨论,以获得对实验中解释不足的补充.","authors":[{"authorName":"瞿海","id":"1c891617-f1cf-4485-b84f-d66ddfc5016a","originalAuthorName":"瞿海"},{"authorName":"周世平","id":"62aa225d-ac34-4ef2-b0dd-6f44292288d7","originalAuthorName":"周世平"},{"authorName":"黄颂翔","id":"1912be92-4f46-47f9-aac5-56e167a3a60f","originalAuthorName":"黄颂翔"}],"doi":"10.3969/j.issn.1000-3258.2000.05.002","fpage":"340","id":"752d4ee4-d673-477b-88e0-5344200f5525","issue":"5","journal":{"abbrevTitle":"DWWLXB","coverImgSrc":"journal/img/cover/DWWLXB.jpg","id":"19","issnPpub":"1000-3258","publisherId":"DWWLXB","title":"低温物理学报   "},"keywords":[{"id":"d2bda085-927d-4d75-8989-2a7de8c66ca8","keyword":"","originalKeyword":""}],"language":"zh","publisherId":"dwwlxb200005002","title":"混合波时间<span style=\"color:red\">反演</span>不<span style=\"color:red\">对称</span>性与超导二向色性","volume":"22","year":"2000"},{"abstractinfo":"光子晶体Dirac点周围的性质是国际的一个研究热点,我们基于厄米算符本征方程形式的麦克斯韦方程和微扰论,引入破坏<span style=\"color:red\">空间反演对称</span>性和时间<span style=\"color:red\">反演对称</span>性的扰动,严格推导出Dirac点被打开后其周围的等效哈密顿量,并指出前人工作的一些基本错误.该哈密顿量具有广泛的用途,例如,可以用来描述光在光子晶体块材(bulk)中的传播性质和求解有限光子晶体的边界态等等.","authors":[{"authorName":"刘淼","id":"dd2babcb-0e4d-4633-89d9-39b74272306d","originalAuthorName":"刘淼"},{"authorName":"张小刚","id":"1f57113f-c53f-450e-9fc6-87f8cea3282f","originalAuthorName":"张小刚"},{"authorName":"林旭林","id":"8cbfc336-1b8b-4d7d-a91c-7b8cd7735348","originalAuthorName":"林旭林"},{"authorName":"蒋寻涯","id":"0fbdfe29-e471-4156-8e5b-b35d6a891755","originalAuthorName":"蒋寻涯"}],"doi":"","fpage":"161","id":"5916a4d2-2bd5-4791-be96-f65687704bd4","issue":"4","journal":{"abbrevTitle":"GNCLYQJXB","coverImgSrc":"journal/img/cover/GNCLYQJXB.jpg","id":"34","issnPpub":"1007-4252","publisherId":"GNCLYQJXB","title":"功能材料与器件学报   "},"keywords":[{"id":"f50204b0-ef61-4ec4-b922-d708b2a54c8d","keyword":"","originalKeyword":""}],"language":"zh","publisherId":"gnclyqjxb201304002","title":"光子晶体狄拉克点周围的等效哈密顿量","volume":"19","year":"2013"},{"abstractinfo":"数值研究了克尔双周期宇称-时间(Parity-time,PT)<span style=\"color:red\">对称</span>光晶格中能存在的<span style=\"color:red\">空间</span>光孤子,通过平面波展开法详细研究了此光品格的带隙结构并获得其相变点.数值研究了此光晶格中能存在的<span style=\"color:red\">空间</span>光孤子及其传播稳定性,数值结果显示位于不同周期波导上的<span style=\"color:red\">空间</span>光孤子其稳定性区间不同.","authors":[{"authorName":"林洽武","id":"182042f6-44b8-41b8-a145-fcc06d73c87c","originalAuthorName":"林洽武"},{"authorName":"谢庆文","id":"07687a40-cdb6-4fd3-adc9-f5237433cbc6","originalAuthorName":"谢庆文"},{"authorName":"罗质华","id":"77f2198b-4b1b-4d1c-8e03-4e9155c67bc7","originalAuthorName":"罗质华"},{"authorName":"石智伟","id":"dabd1df5-b98f-421a-ba54-fd0a422dd178","originalAuthorName":"石智伟"},{"authorName":"李华刚","id":"49017f54-ac5a-4705-8d0c-486dc23ab031","originalAuthorName":"李华刚"}],"doi":"10.3969/j.issn.1007-5461.2014.04.016","fpage":"507","id":"21c06742-d85c-4e6f-aea5-e740436a7946","issue":"4","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":"1f7065ad-66df-4b58-8088-b083d3ac12a3","keyword":"非线性光学","originalKeyword":"非线性光学"},{"id":"420df15a-0a0c-4d88-a26a-b57d17e1e833","keyword":"克尔介质","originalKeyword":"克尔介质"},{"id":"93ae7b31-ca29-452a-80ce-57f0cc099600","keyword":"宇称-时间<span style=\"color:red\">对称</span>光晶格","originalKeyword":"宇称-时间对称光晶格"},{"id":"152fc0e4-6073-4a7f-8bb5-664834e423a1","keyword":"<span style=\"color:red\">空间</span>光孤子","originalKeyword":"空间光孤子"},{"id":"bc4fb309-496e-4024-9c81-3644ac259739","keyword":"稳定性","originalKeyword":"稳定性"}],"language":"zh","publisherId":"lzdzxb201404016","title":"克尔双周期PT<span style=\"color:red\">对称</span>光晶格中的<span style=\"color:red\">空间</span>光孤子","volume":"31","year":"2014"},{"abstractinfo":"用群论方法导出具有SO(2)群<span style=\"color:red\">对称</span>性的一般三阶、四阶张量形式;进而给出具有这种<span style=\"color:red\">对称</span>性的压电、线性电光、二阶非线性极化、弹光、二次电光、电致伸缩、弹性及三阶非线性极化系数矩阵的一般形式.指出含有4度或6度转轴的非中心<span style=\"color:red\">对称</span>晶类的压电、线性电光及二阶非线性极化性质,以及所有六方晶类的弹光、二次电光、电致伸缩、弹性及三阶非线性极化性质具有关于晶体中唯一高次轴的任意旋转<span style=\"color:red\">对称</span>性.对所得结果作了讨论.","authors":[{"authorName":"江少林","id":"e6b0ae6d-7d0b-4854-984b-5819a4dbf266","originalAuthorName":"江少林"},{"authorName":"华保盈","id":"2cde346c-895d-46a2-a8f7-c2fb0d323101","originalAuthorName":"华保盈"}],"doi":"10.3969/j.issn.1000-985X.1998.01.003","fpage":"14","id":"274f0415-6a77-43de-bcb3-f4679b54a0b8","issue":"1","journal":{"abbrevTitle":"RGJTXB","coverImgSrc":"journal/img/cover/RGJTXB.jpg","id":"57","issnPpub":"1000-985X","publisherId":"RGJTXB","title":"人工晶体学报"},"keywords":[{"id":"31ceb667-b1ef-4f12-a53f-3ffa2fde7986","keyword":"晶体","originalKeyword":"晶体"},{"id":"def5c861-21f8-4199-853b-c7d04750b0b1","keyword":"物理性质","originalKeyword":"物理性质"},{"id":"507e8503-d6e5-4506-92cc-7d30575fda38","keyword":"轴转动<span style=\"color:red\">对称</span>性","originalKeyword":"轴转动对称性"},{"id":"7e42d784-6186-41b0-983b-24009b857579","keyword":"SO(2)群<span style=\"color:red\">对称</span>性","originalKeyword":"SO(2)群对称性"}],"language":"zh","publisherId":"rgjtxb98199801003","title":"晶体物理性质的<span style=\"color:red\">空间</span>轴转动<span style=\"color:red\">对称</span>性","volume":"27","year":"1998"},{"abstractinfo":"采用普通的偏振片和向列相液晶制作的夹层结构液晶盒,一个基板表面单向摩擦,另一个基板表面通过圆形摩擦或两个基板圆形摩擦实现液晶分子的同心圆<span style=\"color:red\">对称</span>排列.该液晶器件可获得具有<span style=\"color:red\">空间</span>轴<span style=\"color:red\">对称</span>偏振特性的线偏振光,作为一种新型的偏振光器件使用.利用琼斯矩阵分析解释了出现该偏振特性的原理和该偏振光器件的类型.","authors":[{"authorName":"才勇","id":"738edce5-5d95-4c96-8cb3-61d8c3043458","originalAuthorName":"才勇"},{"authorName":"黄锡珉","id":"38e111a3-1788-4b71-b25d-b709eb4a188b","originalAuthorName":"黄锡珉"}],"doi":"10.3969/j.issn.1007-2780.1999.03.004","fpage":"175","id":"0d7bc987-cd76-425c-bedb-42e51a64572b","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":"d5befe94-52b9-4acf-b4b0-1ba80dfeef5a","keyword":"<span style=\"color:red\">空间</span>变化","originalKeyword":"空间变化"},{"id":"8bd3b5a5-16d0-408a-b941-7b13da2e6985","keyword":"轴<span style=\"color:red\">对称</span>偏振","originalKeyword":"轴对称偏振"},{"id":"bbf64ccd-9566-4b58-8bad-33096f1bce80","keyword":"同心圆形摩擦","originalKeyword":"同心圆形摩擦"},{"id":"f742240a-22d3-432b-9d56-19acaae2924e","keyword":"液晶偏振光器件","originalKeyword":"液晶偏振光器件"}],"language":"zh","publisherId":"yjyxs199903004","title":"一种具有<span style=\"color:red\">空间</span>变化的轴<span style=\"color:red\">对称</span>偏振特性的液晶偏振光器件","volume":"14","year":"1999"},{"abstractinfo":"针对在重力梯度张量正演中计算耗时过长和核矩阵内存消耗过大等制约<span style=\"color:red\">反演</span>实施的瓶颈问题,在L1范数的基础上,引入种植<span style=\"color:red\">反演</span>,用累加求和分析替换迭代求解,避免计算或存储<span style=\"color:red\">反演</span>核矩阵,以减少内存占用和加快<span style=\"color:red\">反演</span>迭代;针对种植<span style=\"color:red\">反演</span>容易导致相邻异常源相互侵入的问题,引入一个基于位场水平衰减特性加权函数来限制密度吸引子的作用范围,以期使密度吸引子忽略较远的异常源,抑制相邻异常源相互干扰.<span style=\"color:red\">反演</span>结果及分析表明重力及重力梯度张量种植<span style=\"color:red\">反演</span>所需计算机内存小和水平衰减特性加权函数能有效的抑制相邻异常源的侵入.","authors":[{"authorName":"曹书锦","id":"e97f58fa-97bd-4027-971f-c4011a995ca1","originalAuthorName":"曹书锦"},{"authorName":"朱自强","id":"3ba81658-c57e-4074-8425-1ea06ef451ec","originalAuthorName":"朱自强"},{"authorName":"鲁光银","id":"4df26e0d-46a3-42ab-893a-a29ae2916a72","originalAuthorName":"鲁光银"}],"doi":"10.19476/j.ysxb.1004.0609.2017.05.017","fpage":"997","id":"0143cb4d-333b-4cc7-afc2-8d7951bfefff","issue":"5","journal":{"abbrevTitle":"ZGYSJSXB","coverImgSrc":"journal/img/cover/ZGYSJSXB.jpg","id":"88","issnPpub":"1004-0609","publisherId":"ZGYSJSXB","title":"中国有色金属学报"},"keywords":[{"id":"46f6105c-65bf-4f6a-8575-9cefe5619a84","keyword":"种植<span style=\"color:red\">反演</span>","originalKeyword":"种植反演"},{"id":"f9249c27-f760-43f3-8f9a-b4e45f1a5155","keyword":"水平加权特性函数","originalKeyword":"水平加权特性函数"},{"id":"a21d3f30-3b7b-459e-9a2c-53672d6645a3","keyword":"重力梯度张量","originalKeyword":"重力梯度张量"},{"id":"f9c48f36-2a64-484a-b149-3e0504336a0b","keyword":"L1范数","originalKeyword":"L1范数"}],"language":"zh","publisherId":"zgysjsxb201705017","title":"重力梯度张量种植<span style=\"color:red\">反演</span>","volume":"27","year":"2017"},{"abstractinfo":"粒子群优化算法是一种启发式的全局优化算法，将其与 BP 神经网络结合，能够有效地改善 BP 神经网络在进行电阻率层析<span style=\"color:red\">反演</span>中的收敛速度和求解质量。提出一种基于混沌振荡的粒子群算法，使用混沌振荡曲线来自适应调整惯性权重w以提高PSO算法的全局寻优能力，并使用其训练和优化BP神经网络的权值和阈值。比较不同隐含层节点数目和惯性权重w值对<span style=\"color:red\">反演</span>结果的影响，并给出混沌振荡PSO-BP算法非线性<span style=\"color:red\">反演</span>的具体实现方案。对均匀半<span style=\"color:red\">空间</span>中异常体理论模型进行<span style=\"color:red\">反演</span>，实验结果表明：混沌振荡PSO-BP不依赖初始模型，在稳定性和准确性上优于BP<span style=\"color:red\">反演</span>和标准PSO-BP<span style=\"color:red\">反演</span>，成像质量优于最小二乘法<span style=\"color:red\">反演</span>的。","authors":[{"authorName":"戴前伟","id":"1d81e9b5-b973-4076-8619-0e35fc6f92f6","originalAuthorName":"戴前伟"},{"authorName":"江沸菠","id":"b4541ca2-a85d-4406-87e7-21a6b83d800a","originalAuthorName":"江沸菠"}],"doi":"","fpage":"2897","id":"a3f0eb60-9e25-41e6-853e-af9a83eb7aad","issue":"10","journal":{"abbrevTitle":"ZGYSJSXB","coverImgSrc":"journal/img/cover/ZGYSJSXB.jpg","id":"88","issnPpub":"1004-0609","publisherId":"ZGYSJSXB","title":"中国有色金属学报"},"keywords":[{"id":"0f52a786-3d48-431d-9cd1-650a70d4a0cb","keyword":"电阻率层析成像","originalKeyword":"电阻率层析成像"},{"id":"e7cc4c78-4910-45a3-b10a-3daab72fee68","keyword":"非线性<span style=\"color:red\">反演</span>","originalKeyword":"非线性反演"},{"id":"f53e73fb-1882-4764-bca3-ba424a615471","keyword":"粒子群优化","originalKeyword":"粒子群优化"},{"id":"156be7da-43b4-4963-90a4-fd12b213e05b","keyword":"反向传播网络","originalKeyword":"反向传播网络"},{"id":"ea0a6c83-3c68-43ad-805e-f9bd51ff43ec","keyword":"混沌序列","originalKeyword":"混沌序列"}],"language":"zh","publisherId":"zgysjsxb201310023","title":"基于混沌振荡PSO-BP算法的电阻率层析成像非线性<span style=\"color:red\">反演</span>","volume":"","year":"2013"},{"abstractinfo":"功能梯度材料的材料参数随位置变化,以目前的实验手段来看,逐一测定各个材料参数的分布曲线工作量很大,有些材料常数的测定十分困难(特别是沿厚度材料常数梯度分布).本文利用细观元法探讨功能梯度材料参数的<span style=\"color:red\">反演</span>识别问题,即在获知实测位移或固有频率的情况下,对功能梯度材料的内部参数及其分布进行<span style=\"color:red\">反演</span>识别.显然,这可大大简化功能梯度材料的基本力学性能测试工作,为功能梯度材料的进一步研究奠定基础.","authors":[{"authorName":"程红梅","id":"9d1b8fbf-3735-40e2-89e6-b2995f760ca4","originalAuthorName":"程红梅"},{"authorName":"曹志远","id":"5877c303-3b50-426f-9ab0-5a6265f2a82b","originalAuthorName":"曹志远"}],"doi":"10.3969/j.issn.1003-0999.2009.03.005","fpage":"16","id":"42fad816-3d22-4daf-89bb-575389352faf","issue":"3","journal":{"abbrevTitle":"BLGFHCL","coverImgSrc":"journal/img/cover/BLGFHCL.jpg","id":"6","issnPpub":"1003-0999","publisherId":"BLGFHCL","title":"玻璃钢/复合材料"},"keywords":[{"id":"a87938ac-d125-4abc-a296-2e9bce39c1ef","keyword":"功能梯度材料","originalKeyword":"功能梯度材料"},{"id":"f62f4ffb-869b-4c0f-826c-c45de4321a3c","keyword":"细观元法","originalKeyword":"细观元法"},{"id":"8245c584-38a2-494b-8216-3c76ba3c00d5","keyword":"<span style=\"color:red\">反演</span>","originalKeyword":"反演"}],"language":"zh","publisherId":"blgfhcl200903005","title":"功能梯度材料单参数<span style=\"color:red\">反演</span>分析","volume":"","year":"2009"},{"abstractinfo":"在实际地下地质构造是一类多尺度的构造(如断层和褶皱等)，而传统的正则化方法多基于最小光滑策略，其<span style=\"color:red\">反演</span>密度模型一般不易辨识以上构造。为此在分裂Bregman迭代正则化框架下引入混合正则化方法以充分利用非光滑<span style=\"color:red\">反演</span>和小波多尺度<span style=\"color:red\">反演</span>算子的特性，引入与衰减系数无关的深度加权矩阵以更好地描述深部异常；针对非光滑<span style=\"color:red\">反演</span>中异常幅值易于超出现实及理论异常范围，引入密度成像中的约束以确保<span style=\"color:red\">反演</span>具有物理意义。通过设置两类模型，对比多类正则化<span style=\"color:red\">反演</span>方法。<span style=\"color:red\">反演</span>结果显示：混合正则化<span style=\"color:red\">反演</span>能有效地勾勒异常边界；在处理埋深不同的异常源时，相对于聚焦<span style=\"color:red\">反演</span>出现的过度聚焦现象而导致的<span style=\"color:red\">反演</span>深度描述不准确、异常歪斜，混合正则化<span style=\"color:red\">反演</span>的聚焦效应相对较弱、但深度描述准确。这表明本研究<span style=\"color:red\">反演</span>确实可行、有效，且具有更强的适应性。","authors":[{"authorName":"朱自强","id":"ac75d957-a66b-4b82-8bb0-5a1066d730c0","originalAuthorName":"朱自强"},{"authorName":"曹书锦","id":"f12d6a18-9dec-4dc7-849e-50f33167ee31","originalAuthorName":"曹书锦"},{"authorName":"鲁光银","id":"c1d6c50f-29f0-4292-8084-919c8d9f86df","originalAuthorName":"鲁光银"}],"doi":"","fpage":"2601","id":"239e8642-5bd1-4ce1-a931-be3c68faaafa","issue":"10","journal":{"abbrevTitle":"ZGYSJSXB","coverImgSrc":"journal/img/cover/ZGYSJSXB.jpg","id":"88","issnPpub":"1004-0609","publisherId":"ZGYSJSXB","title":"中国有色金属学报"},"keywords":[{"id":"142731e7-2b02-4a63-adcd-c1b1c3f1ec43","keyword":"深度加权","originalKeyword":"深度加权"},{"id":"51d4a904-fd51-4b4c-a452-7c0ad5d5de24","keyword":"密度约束","originalKeyword":"密度约束"},{"id":"4e69bad8-05d7-4bb5-a6ea-c4984d2d22b8","keyword":"聚焦<span style=\"color:red\">反演</span>","originalKeyword":"聚焦反演"},{"id":"a6d3ca1c-b9dc-424d-828d-d8857ec60d80","keyword":"混合正则化","originalKeyword":"混合正则化"},{"id":"7be77cd6-f9c5-44b9-aa47-d19e80218277","keyword":"边界识别","originalKeyword":"边界识别"}],"language":"zh","publisherId":"zgysjsxb201410024","title":"基于混合正则化的重力场约束<span style=\"color:red\">反演</span>","volume":"","year":"2014"}],"totalpage":534,"totalrecord":5339}