{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"在<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>序列灰色预测的基础上,提出了适用于输气管道腐蚀的<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>最优组合灰色预测模型.首先,选用两种模型精度较高的<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>灰色预测方法建立了输气管道腐蚀预测的单项模型,然后,利用最小二乘意义下的模型误差最小化方法确定出各单项灰色预测模型的权重,建立了最优组合预测模型.此预测模型综合利用了参与组合的各单一模型的有效信息,因而可以更加客观地反映输气管道腐蚀变化趋势.通过实例对比分析结果表明,此模型预测精度较高,可以作为输气管道腐蚀预测的有效工具.","authors":[{"authorName":"王晓光","id":"798b3152-e208-47bd-b378-a17fcb9005f2","originalAuthorName":"王晓光"},{"authorName":"周慧","id":"a9c884bd-2886-43dd-b072-78a5e94d8a9c","originalAuthorName":"周慧"}],"doi":"10.3969/j.issn.1002-6495.2009.05.018","fpage":"496","id":"f8dbad4f-d55e-4fab-999f-b81552e3eaae","issue":"5","journal":{"abbrevTitle":"FSXB","coverImgSrc":"journal/img/cover/腐蚀学报封面.jpg","id":"24","issnPpub":"2667-2669","publisherId":"FSXB","title":"腐蚀学报（英文）"},"keywords":[{"id":"9561a858-6609-4ca9-864f-f4bfc2a8204b","keyword":"腐蚀","originalKeyword":"腐蚀"},{"id":"20c964e9-93b3-4202-92df-2b79f91dd0ff","keyword":"<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>","originalKeyword":"不等时距"},{"id":"4d6ad14e-12b2-4ffc-a9e3-3a2661817867","keyword":"灰色模型","originalKeyword":"灰色模型"},{"id":"2aecfb72-b731-46b4-a0a0-f506b4c0803e","keyword":"最优组合预测","originalKeyword":"最优组合预测"}],"language":"zh","publisherId":"fskxyfhjs200905018","title":"输气管道腐蚀的最优灰色组合预测模型","volume":"21","year":"2009"},{"abstractinfo":"金属在海水中的腐蚀机理及变化规律十分复杂,且采集腐蚀数据存在时间间隔不均匀、数据量小等问题,难以获取准确数据.基于灰色系统理论,提出运用能够适应具有无规律的采集时序数据的<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>GM(1,1)模型对金属海水腐蚀速率进行建模,并引入了BP人工神经网络模型对预测结果进行残差修正,以提高预测精度.以A3钢与15MnMoVN钢腐蚀行为作为实例,进行预测和分析.结果显示:<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>GM(1,1)与BP神经网络组合预测模型的预测效果明显优于单一预测模型,能更真实地反映海水腐蚀的变化趋势,因而具有较高应用价值.","authors":[{"authorName":"经建芳","id":"97cb7157-dd62-463b-9099-b9939efdd4c0","originalAuthorName":"经建芳"},{"authorName":"邓富康","id":"376be8d8-5f66-4952-99d4-58b3b1b9aa41","originalAuthorName":"邓富康"},{"authorName":"李康春","id":"5bd49a49-ed40-41f6-b44f-16de91f0c1ed","originalAuthorName":"李康春"},{"authorName":"黄福川","id":"1a2b01ca-4cc9-4250-962b-3f2411421f37","originalAuthorName":"黄福川"}],"doi":"","fpage":"33","id":"bb01c3fc-d140-417e-92d9-c0cd06a14817","issue":"8","journal":{"abbrevTitle":"CLBH","coverImgSrc":"journal/img/cover/CLBH.jpg","id":"7","issnPpub":"1001-1560","publisherId":"CLBH","title":"材料保护"},"keywords":[{"id":"1f4ce4ca-9edd-4b63-b31c-6d8f40957b5e","keyword":"海水腐蚀","originalKeyword":"海水腐蚀"},{"id":"b532640d-7b0b-4f4c-9065-b0d880be0cc4","keyword":"<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>GM(1,1)模型","originalKeyword":"不等时距GM(1,1)模型"},{"id":"8c134f46-c0f6-4113-932f-360f74765c68","keyword":"BP神经网络模型","originalKeyword":"BP神经网络模型"},{"id":"b7bd5e3b-1ddc-4479-a306-94945815eee9","keyword":"预测","originalKeyword":"预测"}],"language":"zh","publisherId":"clbh201508009","title":"海水腐蚀速率的<span style=\"color:red\">不等</span><span style=\"color:red\">时</span><span style=\"color:red\">距</span>灰色模型与BP神经网络模型组合预测","volume":"48","year":"2015"},{"abstractinfo":"贯流风机的通过频率(BPF)是其重要的噪声频率.降低BPF噪声可以降低基频处的声压级,其中一种方法是采用<span style=\"color:red\">不等</span>距叶片.本文采用3种叶片<span style=\"color:red\">距</span>分布形式,采用realizable k-ε两方程和大涡模拟(LES)湍流模型模拟了风机的内流场,计算线性欧拉方程(LEE)中声源项得到声源位置及强度,采用基于Lighthill声类比的FW-H积分方程获得了叶轮和蜗舌处偶极子型的离散噪声频谱.比较了不同叶片<span style=\"color:red\">距</span>对风机性能,噪声特别是BPF噪声的影响.计算结果表明在对性能影响较小的情况下,<span style=\"color:red\">不等</span>距叶轮可降低BPF噪声和总A声级噪声.","authors":[{"authorName":"刘敏","id":"54ad88ca-1e71-4abb-a5c9-df442a3e6946","originalAuthorName":"刘敏"},{"authorName":"王嘉冰","id":"2af66a26-f110-424f-aa6f-4616f4ecf4d0","originalAuthorName":"王嘉冰"},{"authorName":"吴克启","id":"08665ab3-869a-457f-a863-87c94ea0ba52","originalAuthorName":"吴克启"}],"doi":"","fpage":"211","id":"7a146e46-e3be-40ec-a419-db8572113195","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":"016d7c90-2286-4766-9ada-f025e38bf112","keyword":"贯流风机","originalKeyword":"贯流风机"},{"id":"74467381-4770-4c14-957d-c4f294a396dc","keyword":"CFD/CAA","originalKeyword":"CFD/CAA"},{"id":"662bf0ee-ba00-43f6-8536-8c3daa66f3f8","keyword":"<span style=\"color:red\">不等</span>距叶片","originalKeyword":"不等距叶片"},{"id":"3f6183c3-16c0-41ec-99e1-055f52c5c876","keyword":"气动噪声","originalKeyword":"气动噪声"},{"id":"043adac9-ed1f-4e34-8187-2de14d59536d","keyword":"离散基频","originalKeyword":"离散基频"}],"language":"zh","publisherId":"gcrwlxb200702010","title":"数值模拟<span style=\"color:red\">不等</span>距叶片对贯流风机的影响","volume":"28","year":"2007"},{"abstractinfo":"针对钢质药筒<span style=\"color:red\">不等</span>厚焊缝缺陷提出了一种超声检测技术,利用正交超声探头组对焊缝进行扫描检测,可较好解决钢质药筒<span style=\"color:red\">不等</span>厚薄板焊缝缺陷的在线自动无损检测.","authors":[{"authorName":"杨录","id":"3a1f6d85-4de4-4e5c-92ea-e5084bbab1a2","originalAuthorName":"杨录"},{"authorName":"韩焱","id":"288c5342-ae98-4f02-b4e6-8e4528351ded","originalAuthorName":"韩焱"},{"authorName":"程耀瑜","id":"4c9b21bc-f4d6-42e7-9c66-70c74955c08b","originalAuthorName":"程耀瑜"}],"doi":"10.3969/j.issn.1004-244X.2003.05.012","fpage":"46","id":"fa776fd3-4389-4389-baf6-b221bc8b19d3","issue":"5","journal":{"abbrevTitle":"BQCLKXYGC","coverImgSrc":"journal/img/cover/BQCLKXYGC.jpg","id":"4","issnPpub":"1004-244X","publisherId":"BQCLKXYGC","title":"兵器材料科学与工程   "},"keywords":[{"id":"827a4e56-c25d-45ad-82b4-7d459fdd5ac5","keyword":"焊缝","originalKeyword":"焊缝"},{"id":"53282bcc-04ae-4ad0-a0b6-bcb129ae883f","keyword":"缺陷","originalKeyword":"缺陷"},{"id":"d761127e-8c5c-4c2e-9df3-482f05553b0b","keyword":"板波","originalKeyword":"板波"},{"id":"e34d502f-69d8-4d9f-b9d8-4798d2ad3304","keyword":"超声检测","originalKeyword":"超声检测"}],"language":"zh","publisherId":"bqclkxygc200305012","title":"钢质药筒<span style=\"color:red\">不等</span>厚焊缝超声检测技术研究","volume":"26","year":"2003"},{"abstractinfo":"测试了 MESFET工艺条件下制作的霍尔片的基本性能.对设计出的 GaAs集成霍尔元件进 行了<span style=\"color:red\">不等</span>位电势的测试,采用霍尔元件并联和自旋电流的方法对 GaAs方形霍尔元件的<span style=\"color:red\">不等</span>位电 势进行了静态和动态调制消除.实验结果表明 GaAs霍尔元件的<span style=\"color:red\">不等</span>位电势引起的偏差可以控制 在可以忽略的范围内.","authors":[{"authorName":"冯明","id":"24062db3-7338-45b8-81cd-f283779c9f42","originalAuthorName":"冯明"},{"authorName":"夏冠群","id":"f470c648-4c11-4f53-8786-8127cc573aee","originalAuthorName":"夏冠群"},{"authorName":"胡少坚","id":"b72626fd-60ee-4827-b340-1c2167a46558","originalAuthorName":"胡少坚"}],"doi":"10.3969/j.issn.1007-4252.2004.04.012","fpage":"455","id":"a767d909-c153-4f41-8e02-83c87bee360b","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":"1f2278b5-88b2-4b64-8ae6-9c0b6340ad47","keyword":"霍尔效应","originalKeyword":"霍尔效应"},{"id":"4a9ee7d5-a783-49d4-a18c-c7610fe6b431","keyword":"磁传感器","originalKeyword":"磁传感器"},{"id":"6c409367-91c7-4fa1-8e4e-9b9aba54281a","keyword":"<span style=\"color:red\">不等</span>位电势","originalKeyword":"不等位电势"}],"language":"zh","publisherId":"gnclyqjxb200404012","title":"GaAs霍尔元件<span style=\"color:red\">不等</span>位电势的调制消除","volume":"10","year":"2004"},{"abstractinfo":"本文从现象和机理方面研究承受静态均布横向荷载的PVB夹层玻璃板的力学响应,发现:一般不可忽略PVB与玻璃间传递层间剪力的影响,层间剪力是导致对称夹层结构应力不对称的根本原因.当PVB厚度较小导致层间剪力不可忽略<span style=\"color:red\">时</span>,<span style=\"color:red\">不等</span>厚结构设计一般应满足:上层板比下层板厚的要求;随着PVB厚度增加,PVB传递层间剪力减弱,层间剪力可忽略<span style=\"color:red\">时</span>,<span style=\"color:red\">不等</span>厚结构设计可放宽为:保持对称夹层结构,可交换上下层玻璃板厚度.静态横向荷载下,夹层玻璃<span style=\"color:red\">不等</span>厚度结构设计比等厚度设计具有明显的优势,建议应用中设计成<span style=\"color:red\">不等</span>厚结构.","authors":[{"authorName":"邓汉国","id":"6972f82e-e33a-47e6-b846-f970f1310098","originalAuthorName":"邓汉国"},{"authorName":"张红","id":"199a7469-702a-448a-8831-4f666529fb65","originalAuthorName":"张红"},{"authorName":"姚小虎","id":"8c5a6f27-f0da-43f6-a770-ff83a858e371","originalAuthorName":"姚小虎"}],"doi":"","fpage":"2113","id":"2027b9b5-c830-4365-ac76-c0c4f2d84c36","issue":"8","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报   "},"keywords":[{"id":"e65a80f9-c881-4797-a832-04d6594397e2","keyword":"夹层玻璃","originalKeyword":"夹层玻璃"},{"id":"5866c6e5-1d65-4e92-97ed-de07a644b5e2","keyword":"层间剪力","originalKeyword":"层间剪力"},{"id":"dad27031-4930-4072-b384-535e81023c6a","keyword":"<span style=\"color:red\">不等</span>厚设计","originalKeyword":"不等厚设计"}],"language":"zh","publisherId":"gsytb201508007","title":"考虑层间剪力的PVB夹层玻璃<span style=\"color:red\">不等</span>厚结构设计","volume":"34","year":"2015"},{"abstractinfo":"在空气-水两相流实验回路上对油田注汽管线上的一种<span style=\"color:red\">不等</span>径水平三通进行了相分离特性实验研究.结果表明,侧支管的出口干度X3并非始终高于主管进口干度,当分流比超过某一临界值<span style=\"color:red\">时</span>X3将低于主管入口干度.该临界值随入口气相折算流速的提高而增大,同时通过在三通上游布置挡板也显著提高了临界分流比,证明流体惯性是影响水平三通相分离特性的最主要因素.与等径三通相比,<span style=\"color:red\">不等</span>径三通的特性曲线随着侧支管相对内径的缩小逐渐向左下方移动.","authors":[{"authorName":"王栋","id":"3cdcea09-0505-4a83-ad6f-3969b66b4024","originalAuthorName":"王栋"},{"authorName":"张修刚","id":"d31ba1ce-b55c-49d4-846f-adf7ae70c0f8","originalAuthorName":"张修刚"},{"authorName":"林益","id":"8b404537-a94d-4afd-b09f-9addbbc3a8e3","originalAuthorName":"林益"},{"authorName":"林宗虎","id":"36bfa6d5-54de-4b74-8cbe-832c95ae1b39","originalAuthorName":"林宗虎"}],"doi":"","fpage":"259","id":"741c7d94-9fdf-4542-b532-43cb60474442","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":"80ebcb97-f42a-44c8-9d4c-5e343c8fa6b1","keyword":"相分离","originalKeyword":"相分离"},{"id":"87bc0775-2702-42ea-a924-96b5599a09e2","keyword":"三通管","originalKeyword":"三通管"},{"id":"47961686-8f9e-4fbb-b9fb-9a7b8a197a60","keyword":"两相流","originalKeyword":"两相流"}],"language":"zh","publisherId":"gcrwlxb200302022","title":"<span style=\"color:red\">不等</span>径水平三通的相分离特性研究","volume":"24","year":"2003"},{"abstractinfo":"以螺钉夹紧SCLCR2020K09型号车刀为研究对象,采用marc有限元软件分析偏心<span style=\"color:red\">距</span>e取值对可转位车刀刀杆和螺钉静态及动态切削<span style=\"color:red\">时</span>应力、应变和变形量的影响,揭示了偏心<span style=\"color:red\">距</span>e变化对车刀刀杆和螺钉应力、应变和变形的影响规律:车刀刀杆和螺钉所受应力、应变和变形量有随偏心<span style=\"color:red\">距</span>增大而增大的趋势,仿真得到e=0.15 mm和e=0.2mm<span style=\"color:red\">时</span>应力应变和变形量变化较平缓,是该型号车刀较好的偏心<span style=\"color:red\">距</span>值.在此基础上进行了车削实验,比较了各偏心<span style=\"color:red\">距</span>下刀片的寿命和磨损情况.实验结果表明:在e=0.1 mm、e=0.15 mm、e=0.2 mm、e=0.25 mm和e=0.3 mm偏心<span style=\"color:red\">距</span>下,e=0.15 mm和e=0.2 mm<span style=\"color:red\">时</span>刀具可获得最长的寿命,确定最优偏心<span style=\"color:red\">距</span>为e=0.15 mm和e=0.2 mm,与有限元仿真结果相一致.","authors":[{"authorName":"罗胜","id":"d480b219-2733-4f0e-a662-43da2fcb66a8","originalAuthorName":"罗胜"},{"authorName":"胡自化","id":"1ece3f2d-1f6e-4074-b660-b7f6a3728c70","originalAuthorName":"胡自化"},{"authorName":"陈长贵","id":"ec1adf80-f4cf-48fb-a135-ae8f97450d65","originalAuthorName":"陈长贵"},{"authorName":"杨志峰","id":"98568cbf-cd2b-4dc2-82fa-c172e95d0b7a","originalAuthorName":"杨志峰"}],"doi":"10.3969/j.issn.1003-7292.2016.04.005","fpage":"238","id":"d0cbd723-5628-441b-9135-34a578edb262","issue":"4","journal":{"abbrevTitle":"YZHJ","coverImgSrc":"journal/img/cover/YZHJ.jpg","id":"75","issnPpub":"1003-7292","publisherId":"YZHJ","title":"硬质合金"},"keywords":[{"id":"4a47645b-27ed-4b11-ad1c-e00afbee8b69","keyword":"螺钉夹紧","originalKeyword":"螺钉夹紧"},{"id":"9d430f6b-8d13-4d35-a411-f060591176c6","keyword":"偏心<span style=\"color:red\">距</span>e","originalKeyword":"偏心距e"},{"id":"71194ad8-5a1f-4edd-88cd-cf8211314e07","keyword":"有限元","originalKeyword":"有限元"},{"id":"639cd076-7902-47f8-a339-98335e354a5a","keyword":"车削试验","originalKeyword":"车削试验"}],"language":"zh","publisherId":"yzhj201604005","title":"车削刀具偏心<span style=\"color:red\">距</span>的有限元仿真与试验研究","volume":"33","year":"2016"},{"abstractinfo":"拼焊板Tailor welded blanks(TWB)作为一种先进的制造工艺技术,在满足零件不同性能要求的同时,还能满足减少重量,节约能源要求.文章就<span style=\"color:red\">不等</span>厚异质高强钢拼焊板的拉伸性能进行了研究,结果表明:当焊缝平行于拉伸方向<span style=\"color:red\">时</span>,断后伸长率较大,与焊缝垂直于拉伸方向相比较,板材有较大的拉伸变形能力,较好的成形性能;焊缝平行于拉伸方向<span style=\"color:red\">时</span>,断口为韧性断裂与解理断裂的混合型形貌,焊缝垂直于拉伸方向<span style=\"color:red\">时</span>,断口形貌为等轴韧窝.","authors":[{"authorName":"刘广达","id":"78092eec-30f4-40ea-a207-266fae086954","originalAuthorName":"刘广达"},{"authorName":"李云涛","id":"cea4e538-b150-41d3-a3b9-78fae92e22c1","originalAuthorName":"李云涛"},{"authorName":"张建","id":"08745f71-cedc-410c-9f45-19197c0af39e","originalAuthorName":"张建"},{"authorName":"毕大森","id":"18f3b311-2770-4f4c-a136-a96e7939a13c","originalAuthorName":"毕大森"},{"authorName":"褚亮","id":"3e66ac54-48b1-4fd2-a629-496decb7c72f","originalAuthorName":"褚亮"}],"doi":"","fpage":"5","id":"d7664ebc-56d0-404d-836e-88c721eeb521","issue":"1","journal":{"abbrevTitle":"WLCS","coverImgSrc":"journal/img/cover/WLCS.jpg","id":"64","issnPpub":"1001-0777","publisherId":"WLCS","title":"物理测试"},"keywords":[{"id":"d62318b5-5708-46b5-95a4-a0293c48ce06","keyword":"<span style=\"color:red\">不等</span>厚","originalKeyword":"不等厚"},{"id":"43526d73-fca7-4efe-a739-31723af5817f","keyword":"异质高强钢","originalKeyword":"异质高强钢"},{"id":"43e403cf-8903-4c5d-9084-5ea15fa9e2be","keyword":"拼焊板","originalKeyword":"拼焊板"},{"id":"de50f178-74e9-4f44-9288-ab20fe7d233d","keyword":"拉伸变形","originalKeyword":"拉伸变形"}],"language":"zh","publisherId":"wlcs200901002","title":"<span style=\"color:red\">不等</span>厚异质高强钢拼焊板塑性变形性能研究","volume":"27","year":"2009"},{"abstractinfo":"拼焊板Tailor welded blanks(TWB)作为一种先进的制造工艺技术，在满足零件不同性能要求的同时，还能满足减少重量，节约能源要求。文章就<span style=\"color:red\">不等</span>厚异质高强钢拼焊板的拉伸性能进行了研究，结果表明：当焊缝平行于拉伸方向<span style=\"color:red\">时</span>，断后伸长率较大，与焊缝垂直于拉伸方向相比较，板材有较大的拉伸变形能力，较好的成形性能；焊缝平行于拉伸方向<span style=\"color:red\">时</span>，断口为韧性断裂与解理断裂的混合型形貌，焊缝垂直于拉伸方向<span style=\"color:red\">时</span>，断口形貌为等轴韧窝。","authors":[{"authorName":"刘广达","id":"3c124b95-6739-4fa5-8043-17a5cda792ec","originalAuthorName":"刘广达"},{"authorName":"李云涛","id":"0660c71a-c34b-488d-a7b6-5455f6e515c5","originalAuthorName":"李云涛"},{"authorName":"张建","id":"91474695-aaa9-47cb-b3c9-56d57250781f","originalAuthorName":"张建"},{"authorName":"毕大森","id":"7c99bd1c-c480-4747-b691-dc671411d620","originalAuthorName":"毕大森"},{"authorName":"褚亮","id":"ee14548f-2a56-4002-bc43-cc3b980bb5ad","originalAuthorName":"褚亮"}],"categoryName":"|","doi":"","fpage":"5","id":"d9c51ecf-7532-4f1f-9c07-8ac108ec63d3","issue":"1","journal":{"abbrevTitle":"WLCS","coverImgSrc":"journal/img/cover/WLCS.jpg","id":"64","issnPpub":"1001-0777","publisherId":"WLCS","title":"物理测试"},"keywords":[{"id":"05a3af77-fb20-465f-8471-399a32135ebd","keyword":"<span style=\"color:red\">不等</span>厚","originalKeyword":"不等厚"},{"id":"9e37d793-da12-4c4d-891b-efd3bc97ffc5","keyword":"high strength steel with different qualities","originalKeyword":"high strength steel with different qualities"},{"id":"78d38d8d-cc78-48fa-865f-74aac04d93e4","keyword":"tailor welded blanks","originalKeyword":"tailor welded blanks"},{"id":"06e70160-6128-423d-8d36-684bdc93d940","keyword":"tensile deformation","originalKeyword":"tensile deformation"}],"language":"zh","publisherId":"1001-0777_2009_1_4","title":"<span style=\"color:red\">不等</span>厚异质高强钢拼焊板塑性变形性能研究","volume":"27","year":"2009"}],"totalpage":4869,"totalrecord":48682}