{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"本文在回热器边界<span style=\"color:red\">声场</span><span style=\"color:red\">调制</span>理论的基础上，考虑了两端换热器和谐振管变径的影响，推导出热声系统（谐振管和回热器）内<span style=\"color:red\">声场</span>与双声源复声压相关的<span style=\"color:red\">声场</span><span style=\"color:red\">调制</span>关系式。理论和实验分析了双声源复声压对谐振管中的行波比率以及回热器中的声阻抗的<span style=\"color:red\">调制</span>，并给出通过复声压<span style=\"color:red\">调制</span>后的系统内<span style=\"color:red\">声场</span>分布图。对比结果表明该<span style=\"color:red\">声场</span><span style=\"color:red\">调制</span>关系式的适用性，通过双声源复声压的调节，能<span style=\"color:red\">调制</span>出谐振管及回热器所期望的工作<span style=\"color:red\">声场</span>。","authors":[{"authorName":"周立华","id":"b4eda521-f53c-4ab3-a2b6-1435c2bca1cd","originalAuthorName":"周立华"},{"authorName":"谢秀娟","id":"41dd85e4-9615-48a5-a6bb-9a0e804221ef","originalAuthorName":"谢秀娟"},{"authorName":"李雷","id":"92548b0b-c0d8-46d0-8565-84a88acced3c","originalAuthorName":"李雷"},{"authorName":"李青","id":"0f70951c-ac4c-4924-8c41-24eef1fab4e2","originalAuthorName":"李青"}],"doi":"","fpage":"27","id":"0d4ff761-1710-45b0-bc83-e39d3837f8c0","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":"b7aaf849-f8c4-4696-9d97-cf8f43d13bcb","keyword":"双声源驱动","originalKeyword":"双声源驱动"},{"id":"0580a375-f435-41c0-b490-662f13f84e8a","keyword":"回热器","originalKeyword":"回热器"},{"id":"14dce504-ab6c-4f55-b2b4-ecaa998ce51a","keyword":"<span style=\"color:red\">声场</span><span style=\"color:red\">调制</span>","originalKeyword":"声场调制"},{"id":"7d897b08-3330-4448-8163-f0fc495e6ade","keyword":"行波比率","originalKeyword":"行波比率"},{"id":"1d573b6d-217a-483b-9e6e-914fafc01707","keyword":"声阻抗","originalKeyword":"声阻抗"}],"language":"zh","publisherId":"gcrwlxb201201007","title":"双声源驱动热声系统<span style=\"color:red\">声场</span><span style=\"color:red\">调制</span>研究","volume":"33","year":"2012"},{"abstractinfo":"研究了<span style=\"color:red\">声场</span>对3种不同结晶形态的四钼酸铵结晶过程的影响,揭示了<span style=\"color:red\">声场</span>对钼酸铵溶液结晶的晶型、热化学性质和晶体形貌的影响规律.对于结晶速度较慢的反应体系,<span style=\"color:red\">声场</span>的影响非常显著,无<span style=\"color:red\">声场</span>作用下需 1～2天制得产物,而在<span style=\"color:red\">声场</span>作用下只需十几分钟即可完成,对于结晶速度较快的反应体系,<span style=\"color:red\">声场</span>的影响则相对不明显.<span style=\"color:red\">声场</span>对结晶产物的晶体形貌有显著的影响,无<span style=\"color:red\">声场</span>作用下制得的样品颗粒大而不均匀,<span style=\"color:red\">声场</span>作用下制得的样品颗粒细而均匀.","authors":[{"authorName":"吴争平","id":"9598e43a-f644-4f32-86b6-7513e6b55b33","originalAuthorName":"吴争平"},{"authorName":"尹周澜","id":"df08be7d-d781-42f3-96ca-45fd67bca322","originalAuthorName":"尹周澜"},{"authorName":"陈启元","id":"c7612a6b-510d-4369-a139-16248f0b8eb2","originalAuthorName":"陈启元"},{"authorName":"张平民","id":"5b9a4191-7947-40fd-9e56-be3951058748","originalAuthorName":"张平民"},{"authorName":"李洁","id":"c6275efb-8011-48d6-89b8-d0c961366ca8","originalAuthorName":"李洁"}],"doi":"10.3969/j.issn.0258-7076.2001.06.002","fpage":"404","id":"1142287c-1e79-4bfc-b4b4-ea298f37fe69","issue":"6","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"425e3775-0c7c-4e49-92bd-acd8d70ea928","keyword":"<span style=\"color:red\">声场</span>","originalKeyword":"声场"},{"id":"2f8799c6-f4d8-428c-b899-172b99c81f29","keyword":"钼酸铵","originalKeyword":"钼酸铵"},{"id":"77e11373-0c6d-4ab8-ac15-e52285d4b61b","keyword":"晶型","originalKeyword":"晶型"}],"language":"zh","publisherId":"xyjs200106002","title":"<span style=\"color:red\">声场</span>对钼酸铵溶液结晶影响的研究","volume":"25","year":"2001"},{"abstractinfo":"在超<span style=\"color:red\">声场</span>作用下,以聚乙烯吡咯烷酮为保护剂,硝酸银为前驱物,经硼氢化钾还原制备了稳定的银胶体.研究了保护剂和还原剂用量、超声时间和超声功率等因素对银胶体稳定性的影响,利用透射电镜、选区电子衍射和分光光度等技术对制备的银胶体进行了表征.结果表明:银纳米粒子为面心立方(fcc)结构;PVP与AgNO3质量比为1:1时,PVP可有效保护银粒子,获得了球形颗粒;AgNO3与KBH4摩尔比为1:2时,可制得分散较好的直径约为20 nm的类球形银纳米颗粒;在超<span style=\"color:red\">声场</span>作用下,银胶体的分散性和稳定性增强.随着超声功率的增大,银纳米粒子直径变小,粒径分布变窄.超声50 min制得的银胶体主要以球形纳米颗粒形式存在,粒径在10 nm～20 nm范围内,稳定性好.","authors":[{"authorName":"程敬泉","id":"32c226ba-82fb-473c-9daa-ad0685b54eac","originalAuthorName":"程敬泉"},{"authorName":"姚素薇","id":"90dbc94e-d2d2-44cb-b7cd-e54d4f69f945","originalAuthorName":"姚素薇"}],"doi":"","fpage":"1717","id":"fa78ce0e-755b-4c46-a717-5ef7860fae91","issue":"11","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"2a10f466-23f8-47de-a2a3-15288c9ec746","keyword":"银胶体","originalKeyword":"银胶体"},{"id":"3c9ac1e1-47f6-44f4-88c5-d6de869e3a54","keyword":"制备","originalKeyword":"制备"},{"id":"bd4e5c9d-4db8-47a8-a403-1f8964bd7976","keyword":"超声化学法","originalKeyword":"超声化学法"},{"id":"58bbdb03-53ad-4b2b-a8e6-025bf26ae7ff","keyword":"PVP","originalKeyword":"PVP"}],"language":"zh","publisherId":"xyjsclygc200511009","title":"超<span style=\"color:red\">声场</span>下银胶体的制备","volume":"34","year":"2005"},{"abstractinfo":"两能级原子置于噪<span style=\"color:red\">声场</span>中,噪<span style=\"color:red\">声场</span>用热库态描述.得出原子与噪<span style=\"color:red\">声场</span>相互作用过程中原子约化密度算符非对角元,讨论原子相干性的衰变.如果在相互作用系统中外加驱动场,当外加驱动场的时间演化满足一定条件时,可保持原子的相干性.","authors":[{"authorName":"张登玉","id":"033f5dac-4be3-48a8-958f-b28a64007fb6","originalAuthorName":"张登玉"}],"doi":"10.3969/j.issn.1007-5461.2003.04.015","fpage":"454","id":"f4ce0e61-5737-4f60-8543-775d80eb3ac1","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":"2bc51b18-7943-43be-af82-39051d6074ac","keyword":"两能级原子","originalKeyword":"两能级原子"},{"id":"c32ce51c-7bce-4fcc-8cbf-6b2ea248e859","keyword":"噪<span style=\"color:red\">声场</span>","originalKeyword":"噪声场"},{"id":"dc44e489-aa8e-44ca-a97a-043d3876880d","keyword":"相干性","originalKeyword":"相干性"},{"id":"56cba89e-2185-43c8-93e4-6fe2369b32b9","keyword":"外加驱动场","originalKeyword":"外加驱动场"}],"language":"zh","publisherId":"lzdzxb200304015","title":"噪<span style=\"color:red\">声场</span>中两能级原子相干特性研究","volume":"20","year":"2003"},{"abstractinfo":"提出了实验上在特定光路条件下测量液晶空间光<span style=\"color:red\">调制</span>器的偏振<span style=\"color:red\">调制</span>特性的原理与方法,探索了定标液晶空间光<span style=\"color:red\">调制</span>器对入射偏振光分别进行相位<span style=\"color:red\">调制</span>与振幅<span style=\"color:red\">调制</span>时<span style=\"color:red\">调制</span>特性的原理与实验方法,实验测定了LC-SLM在特定光路条件下分别进行偏振<span style=\"color:red\">调制</span>、相位<span style=\"color:red\">调制</span>与振幅<span style=\"color:red\">调制</span>时的<span style=\"color:red\">调制</span>特性参数.","authors":[{"authorName":"周琦","id":"3b1d8e16-4524-4de1-ad3d-d809ce53c34f","originalAuthorName":"周琦"},{"authorName":"陆俊发","id":"7d1565c2-d9d3-45b6-bf7e-c85d98be12f6","originalAuthorName":"陆俊发"},{"authorName":"印建平","id":"37e25f6f-7969-4954-bb67-3b51992ce2b2","originalAuthorName":"印建平"}],"doi":"10.3788/YJYXS20132803.0349","fpage":"349","id":"39d9a1e0-d6d8-4063-b0c0-9f376ba271d6","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":"82d343da-6afe-45dd-8fb7-1f95da1b3739","keyword":"空间光<span style=\"color:red\">调制</span>器","originalKeyword":"空间光调制器"},{"id":"629474a9-8e1c-4805-aff4-49b227b3e83a","keyword":"<span style=\"color:red\">调制</span>特性","originalKeyword":"调制特性"},{"id":"718f7390-1aae-4392-a065-3832957ce02f","keyword":"相位<span style=\"color:red\">调制</span>","originalKeyword":"相位调制"}],"language":"zh","publisherId":"yjyxs201303009","title":"空间光<span style=\"color:red\">调制</span>器对入射光场<span style=\"color:red\">调制</span>特性的实验研究","volume":"28","year":"2013"},{"abstractinfo":"研究了在超<span style=\"color:red\">声场</span>作用下冶金级硅粉分别经过盐酸、硝酸、氢氟酸处理后,Al、Fe、Ti、Ca、Cu等主要金属杂质的含量变化,并与普通机械搅拌进行了对比.实验结果表明,在盐酸、硝酸、氢氟酸的酸洗情况下,杂质的去除率分别提高了16.2%、7.1%、6.8%.实验同时研究了在超<span style=\"color:red\">声场</span>作用下酸洗时间对金属杂质去除的影响.探讨了超<span style=\"color:red\">声场</span>湿法提纯冶金级硅粉的原理.","authors":[{"authorName":"马晓东","id":"d56cfa9c-2bdd-4930-ad78-a9f316caaa9a","originalAuthorName":"马晓东"},{"authorName":"张剑","id":"2dff5a8f-06a6-4736-8b68-66d9ca9d5612","originalAuthorName":"张剑"},{"authorName":"吴亚萍","id":"b348b831-335c-410a-b1e9-213563c5cd43","originalAuthorName":"吴亚萍"},{"authorName":"李廷举","id":"be1a7f2f-5ba0-4720-84d4-36b1595ab907","originalAuthorName":"李廷举"}],"doi":"","fpage":"1071","id":"20c25ad5-cef5-4237-8fcf-ecdb7a8bdbaf","issue":"7","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"1182cdf2-44c9-4d8b-94b0-719cf872e300","keyword":"超<span style=\"color:red\">声场</span>","originalKeyword":"超声场"},{"id":"ed6ac126-25d5-45aa-958d-8895557bd014","keyword":"酸洗","originalKeyword":"酸洗"},{"id":"8df46332-9345-444f-b3e7-d693f553a0fd","keyword":"冶金级硅","originalKeyword":"冶金级硅"},{"id":"7c8cf78b-aef0-44a8-893f-234e022874d6","keyword":"金属杂质","originalKeyword":"金属杂质"}],"language":"zh","publisherId":"gncl200807004","title":"超<span style=\"color:red\">声场</span>湿法提纯冶金级硅的研究","volume":"39","year":"2008"},{"abstractinfo":"将超<span style=\"color:red\">声场</span>引入7050铝合金半连续铸造过程中，用Leica光学显微镜观察了铸锭的组织，结合RDG热裂纹判据和凝固补缩理论分析了超<span style=\"color:red\">声场</span>对热裂纹形成的影响机理。结果表明：在未施加超<span style=\"color:red\">声场</span>的铸锭中心发现有热裂纹，而施加超<span style=\"color:red\">声场</span>的铸锭中没有发现热裂纹；施加超<span style=\"color:red\">声场</span>的铸锭组织均匀，晶粒显著细化，组织由未加超<span style=\"color:red\">声场</span>时的柱状晶变为等轴晶；施加超<span style=\"color:red\">声场</span>可有效抑制热裂纹的形成。","authors":[{"authorName":"张立华","id":"00504f77-5344-4143-b098-c5d9db038952","originalAuthorName":"张立华"},{"authorName":"易雪雄","id":"643b0056-9294-4aec-aab7-d048f3ccc721","originalAuthorName":"易雪雄"},{"authorName":"胡谦谦","id":"864dd9b4-5d52-4251-a260-866da101aa81","originalAuthorName":"胡谦谦"},{"authorName":"朱彪","id":"156f4def-fbfb-4b9f-bf94-ba473bba393a","originalAuthorName":"朱彪"}],"doi":"","fpage":"32","id":"194518f8-1044-4295-ac34-105daf8a776c","issue":"11","journal":{"abbrevTitle":"JXGCCL","coverImgSrc":"journal/img/cover/JXGCCL.jpg","id":"45","issnPpub":"1000-3738","publisherId":"JXGCCL","title":"机械工程材料"},"keywords":[{"id":"df91aaaf-3d83-4e39-88ac-354cbcc946d7","keyword":"7050铝合金","originalKeyword":"7050铝合金"},{"id":"b04a37e7-ef02-4d69-83de-57348d4ac606","keyword":"超<span style=\"color:red\">声场</span>","originalKeyword":"超声场"},{"id":"e83fa869-3af1-4fdd-bb00-11761daa0e3d","keyword":"热裂纹","originalKeyword":"热裂纹"},{"id":"2f2d99c8-034c-44e3-9412-4467b813a968","keyword":"铸锭","originalKeyword":"铸锭"}],"language":"zh","publisherId":"jxgccl201211009","title":"超<span style=\"color:red\">声场</span>对半连续铸造铝合金铸锭热裂纹形成的影响机理","volume":"36","year":"2012"},{"abstractinfo":"介绍了一种测量电磁超声<span style=\"color:red\">声场</span>分布的方法.它采用一组置于直流永久磁场中的并行紧密排列的线圈作为接收线圈,对回折形发射线圈所激发的电磁超声表面波<span style=\"color:red\">声场</span>强度进行了测量.给出了电磁超声表面辐射<span style=\"color:red\">声场</span>的指向性规律.并对电磁超声表面波<span style=\"color:red\">声场</span>指向性分布规律与压电超声波进行了比较.","authors":[{"authorName":"姚君","id":"c1512e96-77bc-4c91-886b-1deb820c8b2b","originalAuthorName":"姚君"},{"authorName":"范弘","id":"93640f44-98ce-497a-9df0-919d51fccc06","originalAuthorName":"范弘"},{"authorName":"贾慧明","id":"dc6e6793-cdf3-4894-83fb-e4b9d20242ac","originalAuthorName":"贾慧明"}],"doi":"","fpage":"55","id":"a1d6b1d2-e29d-4682-b6ae-efbd0573b740","issue":"1","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"1fcb256b-ca6a-476b-bca9-213d4c55228d","keyword":"电磁超声","originalKeyword":"电磁超声"},{"id":"952d4d8e-1abe-47dc-b20a-28e0b904ea7d","keyword":"表面波","originalKeyword":"表面波"},{"id":"048a182f-aef4-430a-b8c8-60332ea4074b","keyword":"<span style=\"color:red\">声场</span>","originalKeyword":"声场"}],"language":"zh","publisherId":"gt200501013","title":"电磁超声表面波<span style=\"color:red\">声场</span>指向性的试验研究","volume":"40","year":"2005"},{"abstractinfo":"本文采用时空守恒(CE/SE)格式求解Navier-Stoks方程与Euler方程,数值模拟了绕圆柱流动引发的气动噪声源及传播问题.对近<span style=\"color:red\">声场</span>与远<span style=\"color:red\">声场</span>采用了不同的控制方程和边界条件,分别得到了流场与<span style=\"color:red\">声场</span>解.将其与采用大涡模拟和FW-H方程得到的结果进行了对比,表明本文的数值方法能够很好地反映流场与<span style=\"color:red\">声场</span>的形态,能较好地模拟<span style=\"color:red\">声场</span>指向性及流场中的拟声现象,相比LES/FW-H方法能更精确地反映流场与<span style=\"color:red\">声场</span>的相互关系.","authors":[{"authorName":"刘敏","id":"9778e7c3-1a0f-40a8-b272-7e833400d2a9","originalAuthorName":"刘敏"},{"authorName":"吴克启","id":"c2323e17-4cf0-416e-92b2-9380bada5621","originalAuthorName":"吴克启"}],"doi":"","fpage":"227","id":"375cf2fb-19f8-46ef-b767-5dfe6cec594b","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":"86559462-bc35-49c3-9e59-b19dc9a189ca","keyword":"CE/SE算法","originalKeyword":"CE/SE算法"},{"id":"23e0ae0a-6590-4422-97a1-01e780bde5a2","keyword":"方柱绕流","originalKeyword":"方柱绕流"},{"id":"337277f2-fcb1-422d-b66a-fa09c939981e","keyword":"气动声学直接数值模拟","originalKeyword":"气动声学直接数值模拟"}],"language":"zh","publisherId":"gcrwlxb200902013","title":"基于非结构网格CE/SE算法圆柱绕流气动<span style=\"color:red\">声场</span>模拟","volume":"30","year":"2009"},{"abstractinfo":"本文通过对二维轴对称射流场进行直接数值模拟，探讨了不同滤波策略对噪<span style=\"color:red\">声场</span>的影响。空间导数的离散采用六阶紧致差分格式，数值非稳定性的控制采用紧致10阶低滤波格式，时间推进采用四步四阶Runge—Kutta格式。对比分析了显式10阶与紧致10阶滤波格式，低存储3阶Runge—Kutta格式与四步四阶Runge—Kutta格式，交错网格与同位网格方法等几种抑制寄生波方案。分析结果表明，在上述诸多抑制寄生波的方案中，采用交错网格法，计算过程最稳定、最有效。","authors":[{"authorName":"涂运冲","id":"516af482-fb60-4d99-8865-c7f41daa93d8","originalAuthorName":"涂运冲"},{"authorName":"甘加业","id":"e4d622c4-9493-4057-a535-c3274b60dd60","originalAuthorName":"甘加业"},{"authorName":"吴克启","id":"4717e8ce-123e-4f93-a455-e8e694401871","originalAuthorName":"吴克启"}],"doi":"","fpage":"1703","id":"f34a327c-e41d-4d48-8ee6-89f1908741ab","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":"18a98764-b555-4e10-9e33-7b7061a37d0c","keyword":"计算气动声学","originalKeyword":"计算气动声学"},{"id":"7b276053-aa1b-4e3b-b0ee-80662bb76425","keyword":"数值非稳定性","originalKeyword":"数值非稳定性"},{"id":"a7e78b29-8bb6-4224-814b-cd53a21bf132","keyword":"高阶滤波格式","originalKeyword":"高阶滤波格式"}],"language":"zh","publisherId":"gcrwlxb201210015","title":"滤波策略对噪<span style=\"color:red\">声场</span>影响的研究","volume":"33","year":"2012"}],"totalpage":84,"totalrecord":839}