{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"基于金属栅,建立了一种加入阻性毯面的多层堆积、金属条周期格栅吸波结构.将单层传输线模型引入多层堆积复杂吸波结构,建立传输线理论电路模型.验证结果表明,模型精确度较高.理论模型对多层吸波结构透射谱的物理机制可以用最简单有效的计算和测量方式反映出来.不同极化波下,所建电路模型在2~15 GHz频率范围内可以完全拟合此结构的微波吸收特性.金属栅基底的加入,使反射极点消失,带宽展宽约5 GHz,吸收极点频率随入射角变化的漂移量较不加阻性毯面小很多.","authors":[{"authorName":"卢健","id":"dd0a0549-62a2-4955-b912-d452d1bba6f9","originalAuthorName":"卢健"},{"authorName":"高正平","id":"6b5315bc-a9fb-4dc9-b716-b0698ad433cc","originalAuthorName":"高正平"},{"authorName":"颜学源","id":"a8c70af5-c715-4b50-81ca-a62312684808","originalAuthorName":"颜学源"},{"authorName":"王运灿","id":"f949c09d-3158-49f8-9d3c-44e652221024","originalAuthorName":"王运灿"}],"doi":"","fpage":"134","id":"573678dc-eed5-4d35-b0fd-554e1bbe6737","issue":"4","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"67dc4361-03cc-4247-b48e-da0c13058790","keyword":"频率选择表面","originalKeyword":"频率选择表面"},{"id":"6dfadb11-16a5-44f8-aeec-3d6aea0cc23a","keyword":"电路模型","originalKeyword":"电路模型"},{"id":"d15ff50d-75c1-4a72-947f-3140c284d1c6","keyword":"输入阻抗","originalKeyword":"输入阻抗"},{"id":"c304ddd6-43e8-4a30-aff3-706dfa7691e9","keyword":"传输系数","originalKeyword":"传输系数"}],"language":"zh","publisherId":"cldb201304034","title":"层堆积二维金属网格吸波结构及电路模型","volume":"27","year":"2013"},{"abstractinfo":"利用谐振吸收原理和传输线理论分析了超薄金属膜的吸波性能.测量了Al,Ni薄膜的方块电阻及其用于不同厚度泡沫结构的平板反射率,实验结果表明:超薄金属膜结构可以实现谐振吸收;吸波性能由介质材料和金属薄膜共同决定.讨论了超薄金属膜结构中泡沫厚度对吸收峰位的影响,及金属薄膜的方块电阻对吸收峰值的影响.","authors":[{"authorName":"王铁钢","id":"5ec4b3d8-bf7c-4890-91b8-15fda971812a","originalAuthorName":"王铁钢"},{"authorName":"宫骏","id":"6b8d2810-b6b0-4372-bab4-97ffbd624376","originalAuthorName":"宫骏"},{"authorName":"杜昊","id":"c92f0cb3-658c-473f-9b71-991d8b04f626","originalAuthorName":"杜昊"},{"authorName":"刘健钢","id":"0c21a68e-20bc-4200-ae4e-3d0f87353c70","originalAuthorName":"刘健钢"},{"authorName":"孙超","id":"43986e27-826f-4c6f-9ba9-a8e95e6a2337","originalAuthorName":"孙超"},{"authorName":"闻立时","id":"1f9a5f92-5156-4caf-8c3f-5f0e3d32c587","originalAuthorName":"闻立时"}],"doi":"10.3321/j.issn:0412-1961.2005.08.007","fpage":"814","id":"de69fdb4-175f-4a54-b5c8-ce8f8872ef7c","issue":"8","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"824a1394-61a1-48ac-a1d8-04316c891645","keyword":"超薄金属膜","originalKeyword":"超薄金属膜"},{"id":"44396b92-4341-4db0-ba02-89e69e455b09","keyword":"谐振吸收","originalKeyword":"谐振吸收"},{"id":"82d62f4f-25e4-4514-88c0-4a04a55d6892","keyword":"输入阻抗","originalKeyword":"输入阻抗"},{"id":"dc6837e5-68f3-41ab-a817-77870149a8fe","keyword":"方块电阻","originalKeyword":"方块电阻"}],"language":"zh","publisherId":"jsxb200508007","title":"超薄金属膜电磁波传输性能的研究","volume":"41","year":"2005"},{"abstractinfo":"利用直流电弧等离子体法在甲烷气氛中制备碳包覆磁性镍纳米胶囊(Carbon-coated Ni nanocapsules,Ni(C) NCs),将它作为电磁波吸收剂,按照质量比10%、20%、30%和40%与有机石蜡基体复合,在0.1~18 GHz范围内测定其复介电常数和复磁导率,并对其电磁波响应特性及吸收机制进行了研究.研究结果表明,Ni(C)纳米胶囊具有明显的极化损耗特征,其介电常数在低频范围内随频率提高而急剧衰减,而磁导率具有宽化的多重共振峰;随着Ni(C)纳米胶囊添加量的增加,其介电常数逐渐增加,其复磁导率实部和虚部分别在0.1~8 GHz、0.1~10 GHz出现增加,而在8~18 GHz和10~18 GHz范围内出现实部减小和虚部平缓变化的特征.根据极化、涡流以及反射损耗的理论分析,发现Ni(C)纳米胶囊以介电损耗为主,并对相关机制进行了探讨.","authors":[{"authorName":"张黎","id":"454babc1-8624-4e27-a3cf-290f90fbbdc6","originalAuthorName":"张黎"},{"authorName":"周远良","id":"791f5e60-dae0-4cf4-b758-f0d41f80f655","originalAuthorName":"周远良"},{"authorName":"张彬","id":"65843844-8b88-4ece-b655-e266b1b6da92","originalAuthorName":"张彬"},{"authorName":"史桂梅","id":"05384f48-f3ed-4d39-a572-7a910caf21cc","originalAuthorName":"史桂梅"},{"authorName":"赛义德","id":"49197011-0179-4579-b154-070a097d13f2","originalAuthorName":"赛义德"},{"authorName":"贾韦迪","id":"5c8f9e2d-2bdb-434e-a396-2c25370c45e8","originalAuthorName":"贾韦迪"},{"authorName":"王东星","id":"fcb7d40c-9af9-40e1-bf42-43c8ec7ad6f5","originalAuthorName":"王东星"},{"authorName":"董星龙","id":"844b6e51-28f8-4d6f-9fd3-296f179737b7","originalAuthorName":"董星龙"}],"doi":"10.11896/j.issn.1005-023X.2016.12.008","fpage":"31","id":"626a4774-5cae-48d4-8c12-c4807cc07270","issue":"12","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"a05e65a1-84f1-471a-b087-058a6a6fdfe0","keyword":"碳包覆镍纳米胶囊","originalKeyword":"碳包覆镍纳米胶囊"},{"id":"e6502dcd-9310-4108-ad2c-f36c734c9515","keyword":"电磁参数","originalKeyword":"电磁参数"},{"id":"8f92e7c5-5f2c-4dcb-8f13-eb9f310eca59","keyword":"电磁波吸收机制","originalKeyword":"电磁波吸收机制"},{"id":"e0680d2e-b90e-4755-a087-a1f7ddb0def6","keyword":"输入阻抗","originalKeyword":"输入阻抗"}],"language":"zh","publisherId":"cldb201612008","title":"碳包覆镍纳米胶囊/石蜡复合材料电磁波吸收机制","volume":"30","year":"2016"},{"abstractinfo":"采用Smith圆图对尖晶石镍铁氧体的输入阻抗进行表征,并根据传输线理论计算不同涂层厚度下尖晶石镍铁氧体的反射率。结果表明,Smith圆图中输入阻抗越接近点(α=1,β=0),阻抗匹配性越好,反射率也越小。这为基于Smith圆图的吸波材料阻抗匹配设计应用奠定了基础。","authors":[{"authorName":"陈鑫","id":"b63aa050-b784-4084-bfd0-4b5d7fea7f1b","originalAuthorName":"陈鑫"},{"authorName":"刘祥萱","id":"430b9781-f2e3-4620-9f6f-b092d64bab3f","originalAuthorName":"刘祥萱"}],"doi":"","fpage":"98","id":"6d81b304-3dbd-4931-a104-84f224c2f6b7","issue":"6","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":"74e67cc1-e00f-46db-a8a2-adc2f3205058","keyword":"吸波材料","originalKeyword":"吸波材料"},{"id":"510036be-ca3a-4bd9-8858-82c33a05eb28","keyword":"阻抗匹配","originalKeyword":"阻抗匹配"},{"id":"1057a131-4122-4043-8a74-3ae918c664ad","keyword":"Smith圆图","originalKeyword":"Smith圆图"},{"id":"28786311-d98f-4fba-af75-6706930341f5","keyword":"设计","originalKeyword":"设计"}],"language":"zh","publisherId":"bqclkxygc201306036","title":"基于Smith圆图的吸波材料阻抗匹配设计","volume":"","year":"2013"},{"abstractinfo":"为了研究超声键合中在超声能量作用下金属间形成键合界面而构成键合力的机理,确定金属间吸收的超声能量与形成的界面质量的关系,在超声楔焊键合试验中,对Al-Ni楔焊通过改变焊接参数而获得完全键合和半键合的界面,并对其界面特征进行扫描电镜测试分析;同时,利用示波器采集超声键合机焊接时的电信号,分析了PZT驱动的输入阻抗和功率特性,并与界面质量对比.研究结果表明:超声键合而形成的Al-Ni界面为中央未键合的椭圆界面;相同参数条件下,一焊输入阻抗和吸收功率大于二焊,一焊的界面质量也高于二焊.","authors":[{"authorName":"陈新","id":"65deef29-610a-4b4b-86bf-1395054f55f3","originalAuthorName":"陈新"},{"authorName":"李军辉","id":"6c329394-4d45-48f3-a6a7-c77f62e90ca1","originalAuthorName":"李军辉"},{"authorName":"钟泽辉","id":"cfeb61c4-6ea9-4303-a52f-7dd8562119e2","originalAuthorName":"钟泽辉"}],"doi":"10.3969/j.issn.1005-0299.2006.04.021","fpage":"416","id":"29227fa2-08ff-4a3e-a6df-e0fc08632ff6","issue":"4","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":"dbb3b79c-940e-490e-9bd7-31e09ea53485","keyword":"超声键合","originalKeyword":"超声键合"},{"id":"5e30f8c0-9c96-4158-ac7f-9ba9d81e7242","keyword":"界面特征","originalKeyword":"界面特征"},{"id":"0345fa02-efc0-415e-865b-c08332f386e0","keyword":"功率特性","originalKeyword":"功率特性"}],"language":"zh","publisherId":"clkxygy200604021","title":"Al-Ni超声楔焊中输入功率与界面键合的特征分析","volume":"14","year":"2006"},{"abstractinfo":"当今,实际工程中缺乏现场快速简便测量涂层、钢筋混凝土状态的仪器。利用高速单片机、数字信号发生器、双通道同步高速AD和高输入阻抗模拟电路,设计了一套电池供电、适于现场应用的便携式电化学阻抗(EIS)测试仪。考虑到涂层或钢筋混凝土的高阻抗以及现场测试过程易受外部噪声干扰的特点,仪器电路设计中采取了双通道8阶低通滤波器和前置放大器来提高电流分辨率;采用相关积分算法,借助具有电磁屏蔽特性的护环电极探头减小了外部耦合噪声对微弱信号的干扰,实现了高精度阻抗测试。仪器通过频率扫描测量涂层/金属界面的阻抗谱,计算出涂层电阻、电荷传递电阻和界面电容,进而监测金属构件的腐蚀状态。对室内涂层钢板的测试表明,该仪器测量的阻抗谱与PAR273电化学测试系统的测量结果有良好的一致性。","authors":[{"authorName":"杨尊壹","id":"a8fb2f64-4e5c-4c83-909f-5f137c085f29","originalAuthorName":"杨尊壹"},{"authorName":"孔德杰","id":"2f4ea125-d960-40b2-abd5-6a71d3258694","originalAuthorName":"孔德杰"},{"authorName":"董泽华","id":"7f6c7e68-5996-409b-87fd-e870fde70c8e","originalAuthorName":"董泽华"},{"authorName":"刘世海","id":"61df10ba-3f58-4d6c-a639-fe7ddde83a50","originalAuthorName":"刘世海"},{"authorName":"韩红涛","id":"ccc76db6-01a0-4898-9ece-a1cafa348d8a","originalAuthorName":"韩红涛"}],"doi":"","fpage":"63","id":"8d3efecf-1ef8-4542-ae78-a9b59d06a359","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":"c8af380d-9235-4631-bb6a-fd43d65537e9","keyword":"电化学阻抗测试仪","originalKeyword":"电化学阻抗测试仪"},{"id":"783f51ac-dd37-4f14-8018-f0664b6b970c","keyword":"涂层","originalKeyword":"涂层"},{"id":"5cfdfb52-474a-4434-9b77-951274baaecf","keyword":"钢筋混凝土","originalKeyword":"钢筋混凝土"},{"id":"1ee7e96e-bc64-483a-bdd6-6059205ebb04","keyword":"相关积分算法","originalKeyword":"相关积分算法"}],"language":"zh","publisherId":"clbh201108022","title":"涂层、钢筋混凝土电化学阻抗现场测试仪的研制","volume":"44","year":"2011"},{"abstractinfo":"焊接熔池形态对焊接过程和焊接质量有着重要影响,熔池的形状不仅决定了焊缝的形状,而且对焊缝的组织、力学性能和焊接质量均有重要影响.本文使用ANSYS有限元软件,采用“生死单元”技术,对X80管线钢复合型坡口多层焊的焊接过程进行二维模拟,研究各填充焊层受后一焊层热影响后,其高温停留时间和熔深随焊接热输入的影响规律.结果表明,焊层的峰值温度随着热输入的增加而增大,填充焊层焊接热输入从13.25 kJ/cm增加到14.57 kJ/cm,高温停留时间的百分比增量是热输入从12.04 kJ/cm增加到13.25 kJ/cm的一半;而各焊层熔深的增加值不变,均为0.45 mm.","authors":[{"authorName":"童莉葛","id":"ca138da9-d6be-417b-bb18-4b156dcc80e2","originalAuthorName":"童莉葛"},{"authorName":"黎磊","id":"36e55714-8f5f-4920-9447-3fbbb3353b39","originalAuthorName":"黎磊"},{"authorName":"谷京晨","id":"e562217e-077f-4781-ad51-cf4d71775b1e","originalAuthorName":"谷京晨"},{"authorName":"白芳","id":"d811cbe5-b068-4d11-ab6a-8671975a0061","originalAuthorName":"白芳"},{"authorName":"尹少武","id":"aa22b070-7c96-49ec-a6be-a2b66ee75d05","originalAuthorName":"尹少武"},{"authorName":"王立","id":"3ba4fb8d-3651-43b0-9245-dfbb7783fed0","originalAuthorName":"王立"}],"doi":"","fpage":"120","id":"da23dd29-b96a-462e-be8d-2887b2f98a5d","issue":"1","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":"5194a56a-8188-474a-864f-081dc7bc4366","keyword":"多层焊","originalKeyword":"多层焊"},{"id":"9cd959e6-2e13-46e2-9567-4cdbe8b5bf5f","keyword":"焊接熔池","originalKeyword":"焊接熔池"},{"id":"1a85bc7d-7bad-4b9c-828d-5f95f3ccd480","keyword":"固液相变","originalKeyword":"固液相变"},{"id":"806d3054-872a-4e87-ae36-1bf24f3b014c","keyword":"熔深","originalKeyword":"熔深"}],"language":"zh","publisherId":"gcrwlxb201501026","title":"焊接热输入对高温熔池形态的影响","volume":"36","year":"2015"},{"abstractinfo":"为分析CMT焊接方法的工艺特点,采用高速CCD摄像机建立了电弧形态和熔滴过渡视觉传感系统并且通过电流、电压传感器建立了波形采集系统,以此分析其能量输入特点和熔滴过渡行为.结果显示,CMT焊接波形控制呈现典型的直流脉冲特征,焊接时热输入较低;在CMT短路过渡过程中,熔滴尺寸随焊接电流的增加幅度不大,将熔滴尺寸控制在一定范围内可实现稳定的短路过渡.CMT短路过渡通过焊丝回抽,避免了大的电磁力,有效地消除了飞溅.当电流增大到一定值时,其过渡形式将转变为射滴过渡和短路过渡的混合过渡.","authors":[{"authorName":"张洪涛","id":"a9bdcdaa-5c6c-4530-9c5b-f3cbc3f586e7","originalAuthorName":"张洪涛"},{"authorName":"冯吉才","id":"b195d9cd-9844-4acc-b004-3863ba2dc24d","originalAuthorName":"冯吉才"},{"authorName":"胡乐亮","id":"c3f6e11e-2f2c-4542-b08e-175b665f0887","originalAuthorName":"胡乐亮"}],"doi":"","fpage":"128","id":"8946830d-ad93-4dc3-ac9e-176964c21562","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":"7ddd06bc-650b-4954-9e2d-ae0b6b732621","keyword":"CMT","originalKeyword":"CMT"},{"id":"e12c5398-f7c4-49cb-8a7d-1bcc7dc64edf","keyword":"熔滴过渡","originalKeyword":"熔滴过渡"},{"id":"6b158618-7a56-4be6-89bf-5786d2f9a6ea","keyword":"能量输入","originalKeyword":"能量输入"},{"id":"e8280803-6a35-470e-940a-42f8db0ee62c","keyword":"电弧形态","originalKeyword":"电弧形态"}],"language":"zh","publisherId":"clkxygy201202024","title":"CMT能量输入特点与熔滴过渡行为","volume":"20","year":"2012"},{"abstractinfo":"主要研究了大角速度信号输入对栅结构振动式微陀螺及其检测电路分辨率的影响.在0.01-200o/s的动态范围内,按照设计值,陀螺器件与检测电路组成的系统能够分辨0.01o/s的输入角速度变化.考虑到驱动电压和积分电容与敏感电容的特性差异的影响后,当输入角速度大于10o/s时,整个系统即无法分辨0.01o/s的输入角速度变化.针对这种情况,提出了在传感器件上集成关键元件的方法来解决大角速度信号输入下整个系统分辨率降低的问题.","authors":[{"authorName":"付盛荣","id":"f34e0288-1d26-4ead-b1ba-72e4bca15342","originalAuthorName":"付盛荣"},{"authorName":"熊斌","id":"d87d5261-b9f2-40bf-87c9-83649a96c9da","originalAuthorName":"熊斌"},{"authorName":"车录锋","id":"bc8ca7cb-eae4-44d6-811f-3ea86f3c619d","originalAuthorName":"车录锋"},{"authorName":"王跃林","id":"2826ef12-b045-40b7-a9db-d15be821b5a8","originalAuthorName":"王跃林"}],"doi":"10.3969/j.issn.1007-4252.2003.04.012","fpage":"423","id":"385505e8-125b-495a-9583-c8656f8470b1","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":"167cc080-0c00-4575-904a-e73355434018","keyword":"陀螺","originalKeyword":"陀螺"},{"id":"bc7438d9-223a-44f1-80a1-7ac804c957b0","keyword":"电容式","originalKeyword":"电容式"},{"id":"b5db8793-92d1-4b7b-873e-6f0fd9526ff6","keyword":"检测","originalKeyword":"检测"},{"id":"187c503b-4e43-4131-a331-dff9ac5516b5","keyword":"分辨率","originalKeyword":"分辨率"}],"language":"zh","publisherId":"gnclyqjxb200304012","title":"栅结构微陀螺大角速度信号输入下分辨率的研究","volume":"9","year":"2003"},{"abstractinfo":"针对国内某钢厂最新研制的Q890高强钢,采用三种不同的热输入对其进行气体保护焊接,研究了不同热输入对焊缝金属组织、硬度及冲击韧性的影响.结果表明,3种热输入下,焊缝组织主要以板条贝氏体为主,并含有粒状贝氏体、少量的板条马氏体和残余奥氏体.随着热输入的增大,焊缝组织中贝氏体铁素体板条粗化,板条马氏体逐渐减少,而粒状贝氏体逐渐增多,部分残余奥氏体由薄膜状向块状转变;焊缝金属硬度随着热输入的增大而下降;焊缝金属的冲击韧性亦呈逐渐下降的趋势.","authors":[{"authorName":"杜全斌","id":"176ccb4b-6359-44e0-b50b-983c5dadbe54","originalAuthorName":"杜全斌"},{"authorName":"马成勇","id":"33b678cc-095a-41b6-9b35-f10fd66a7734","originalAuthorName":"马成勇"},{"authorName":"彭云","id":"336516d1-0751-41a5-99a2-1afd58ee9cfe","originalAuthorName":"彭云"},{"authorName":"张元杰","id":"52393f1f-00ad-408c-b9fc-b319bade9837","originalAuthorName":"张元杰"},{"authorName":"王华昆","id":"bd6fe807-4194-4566-b862-aa423c0d6aa8","originalAuthorName":"王华昆"}],"doi":"","fpage":"143","id":"79d46240-b93c-4d6e-bea1-a550ecb30775","issue":"5","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":"5e23bdf3-62dc-4ccb-bfd2-7cc081b7ee9c","keyword":"Q890高强钢","originalKeyword":"Q890高强钢"},{"id":"5fdff705-f2d0-416a-99f9-839b99317804","keyword":"热输入","originalKeyword":"热输入"},{"id":"4a4ac0eb-55fe-40a8-9820-6e9215489477","keyword":"焊缝金属","originalKeyword":"焊缝金属"},{"id":"f8de9323-f4c4-4477-af7e-02d1dc6d47b1","keyword":"板条贝氏体","originalKeyword":"板条贝氏体"}],"language":"zh","publisherId":"clkxygy201305024","title":"热输入对Q890高强钢焊缝组织及性能的影响","volume":"21","year":"2013"}],"totalpage":538,"totalrecord":5376}