{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"淬火过程换热系数的求解是反向热传导问题中的一种不适定和非线性问题.\n本文提出了一种求解淬火过程随温度变化的换热系数的新方法, 该方法把\n有限元方法引入反向热传导问题, 根据实验测量的温度曲线, 结合使用最\n优化方法中的进退法和试探法确定合理的边界换热系数. 为了使进退法适\n用于该类反传热问题, 对其算法进行了改进, 并用其确定换热系数优化的\n搜索区间, 然后用试探法(黄金分割法)在搜索区间内找到换热系数的最佳\n值. 在计算过程中, 利用有限元法可以方便地计算出各个单元在整个过程\n的相变情况, 得到各单元在相应时间段所产生相变潜热, 并将各单元的相\n变潜热与单元温度场进行耦合计算.","authors":[{"authorName":"李辉平","id":"aa366fb7-bfac-409d-83f5-e3ccfc537d5d","originalAuthorName":"李辉平"},{"authorName":"赵国群","id":"1845e584-482b-4125-8e52-3297599cbeb1","originalAuthorName":"赵国群"},{"authorName":"<span style=\"color:red\">牛</span><span style=\"color:red\">山</span><span style=\"color:red\">廷</span>","id":"83aa7f25-a256-4d6f-8e8f-d04e2077155a","originalAuthorName":"牛山廷"},{"authorName":"栾贻国","id":"860e0e28-01f4-4349-9efc-4039d7d0b16f","originalAuthorName":"栾贻国"}],"categoryName":"|","doi":"","fpage":"167","id":"1dfd9ac9-6077-49d1-8978-e8dcfd4ba021","issue":"2","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"1a2cc38b-b117-4fc2-a8aa-68aa9082d19f","keyword":"淬火","originalKeyword":"淬火"},{"id":"5cebd74a-75a3-4159-b7b2-6fc5753489ea","keyword":"null","originalKeyword":"null"},{"id":"3378639e-520e-49cf-93d0-615c21c37d3f","keyword":"null","originalKeyword":"null"},{"id":"6e0e498f-f864-4570-bb03-ffabdd3b25ed","keyword":"null","originalKeyword":"null"}],"language":"zh","publisherId":"0412-1961_2005_2_17","title":"基于有限元和最优化方法的淬火冷却过程反传热分析","volume":"41","year":"2005"},{"abstractinfo":"以轴对称问题气体淬火过程为研究对象, 提出了阶段换热系数模型,进行了五因子三水平Box--Behnken实验设计。根据实验设计结果,将设计的变量水平代入本文开发的淬火过程有限元分析软件进行计算, 用逐步回归法和响应曲面方法对实验结果进行拟合, 建立了拟合变形程度、表面单元平均等效残余应力、等效残余应力标准差、平均表面硬度和表面硬度标准差的响应曲面公式。以变形程度为目标, 建立了相应的优化目标函数, 用Lagrange乘子法对优化目标函数进行了带上下限及约束函数的非线性优化。优化后, 五项目标中的四项得到了有利的结果, 使用优化后工艺参数进行气体淬火, 可以提高零件的淬火质量。","authors":[{"authorName":"李辉平","id":"264405b3-904e-4d54-a838-376f5b45cda8","originalAuthorName":"李辉平"},{"authorName":"赵国群","id":"c0ec0804-2819-44e6-98a4-54ff1a870ed3","originalAuthorName":"赵国群"},{"authorName":"<span style=\"color:red\">牛</span><span style=\"color:red\">山</span><span style=\"color:red\">廷</span>","id":"98fa3e2c-32f7-4735-9f74-b9362910c7a6","originalAuthorName":"牛山廷"},{"authorName":"栾贻国","id":"cc21eaca-0aa6-485f-af89-e069633f5188","originalAuthorName":"栾贻国"}],"categoryName":"|","doi":"","fpage":"1095","id":"89282f0c-7d82-4555-90c1-2929addda3b9","issue":"10","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"b8af1d81-60e5-4442-8b33-f45531f3c8c2","keyword":"气体淬火","originalKeyword":"气体淬火"},{"id":"d9cce0a4-c711-42ad-8ecb-49566de2cbd1","keyword":"null","originalKeyword":"null"},{"id":"39bc850e-ef22-495c-bf32-877255fbf36d","keyword":"null","originalKeyword":"null"}],"language":"zh","publisherId":"0412-1961_2005_10_20","title":"响应曲面法优化气体淬火过程中的工艺参数","volume":"41","year":"2005"},{"abstractinfo":"以轴对称问题气体淬火过程为研究对象,提出了阶段换热系数模型,进行了五因子三水平Box-Behnken实验设计.根据实验设计结果,将设计的变量水平代入本文开发的淬火过程有限元分析软件进行计算,用逐步回归法和响应曲面方法对实验结果进行拟合,建立了拟合变形程度、表面单元平均等效残余应力、等效残余应力标准差、平均表面硬度和表面硬度标准差的响应曲面公式.以变形程度为目标,建立了相应的优化目标函数,用Lagrange乘子法对优化目标函数进行了带上下限及约束函数的非线性优化.优化后,五项目标中的四项得到了有利的结果,使用优化后工艺参数进行气体淬火,可以提高零件的淬火质量.","authors":[{"authorName":"李辉平","id":"1c2af52d-ff20-4cd2-a93d-bc1f53c91156","originalAuthorName":"李辉平"},{"authorName":"赵国群","id":"0450290a-035e-48af-a45f-4233bb1ef835","originalAuthorName":"赵国群"},{"authorName":"<span style=\"color:red\">牛</span><span style=\"color:red\">山</span><span style=\"color:red\">廷</span>","id":"13653604-26ba-4f57-bb34-cb2fd0998908","originalAuthorName":"牛山廷"},{"authorName":"栾贻国","id":"7c234371-8a78-42fc-8609-beeb6c5b2426","originalAuthorName":"栾贻国"}],"doi":"10.3321/j.issn:0412-1961.2005.10.018","fpage":"1095","id":"f93314a4-7819-485a-8aa7-0b9e69bd8dd6","issue":"10","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"bd3a0c99-19fc-4e13-be66-c49b35e55289","keyword":"气体淬火","originalKeyword":"气体淬火"},{"id":"c8259d6e-74df-4384-89cc-b0437eb2b3ca","keyword":"响应曲面法","originalKeyword":"响应曲面法"},{"id":"1cbdb1c3-7f6b-42c0-8df2-bccddf00a366","keyword":"工艺参数","originalKeyword":"工艺参数"},{"id":"18846d09-adda-41dd-8f80-b8b43a7be050","keyword":"优化","originalKeyword":"优化"}],"language":"zh","publisherId":"jsxb200510018","title":"响应曲面法优化气体淬火过程中的工艺参数","volume":"41","year":"2005"},{"abstractinfo":"淬火过程换热系数的求解是反向热传导问题中的一种不适定和非线性问题.本文提出了一种求解淬火过程随温度变化的换热系数的新方法,该方法把有限元方法引入反向热传导问题,根据实验测量的温度曲线,结合使用最优化方法中的进退法和试探法确定合理的边界换热系数.为了使进退法适用于该类反传热问题,对其算法进行了改进,并用其确定换热系数优化的搜索区间,然后用试探法(黄金分割法)在搜索区间内找到换热系数的最佳值.在计算过程中,利用有限元法可以方便地计算出各个单元在整个过程的相变情况,得到各单元在相应时间段所产生相变潜热,并将各单元的相变潜热与单元温度场进行耦合计算.","authors":[{"authorName":"李辉平","id":"8a48fc82-93af-4f42-ad19-b0be740a9919","originalAuthorName":"李辉平"},{"authorName":"赵国群","id":"86d7d6a2-2fa3-4d7f-b93a-7997eb4bf9b4","originalAuthorName":"赵国群"},{"authorName":"<span style=\"color:red\">牛</span><span style=\"color:red\">山</span><span style=\"color:red\">廷</span>","id":"633323da-2f1f-462d-a52e-1bd22a61d0ff","originalAuthorName":"牛山廷"},{"authorName":"栾贻国","id":"214b01cc-0675-41f5-91ac-e39480b418ed","originalAuthorName":"栾贻国"}],"doi":"10.3321/j.issn:0412-1961.2005.02.011","fpage":"167","id":"f1fa7228-311b-4dea-9d9f-5bd55086a4d4","issue":"2","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"4163fe68-eb4a-4381-a0e8-52c3bec7e15e","keyword":"淬火","originalKeyword":"淬火"},{"id":"7e02fc9d-386f-4916-a536-a159c5abdc8a","keyword":"反传热","originalKeyword":"反传热"},{"id":"5fcf5d02-51ca-4515-90c4-cbda7c36996d","keyword":"有限元","originalKeyword":"有限元"},{"id":"0e055028-1122-4e0a-9080-216d74f85dc9","keyword":"最优化","originalKeyword":"最优化"}],"language":"zh","publisherId":"jsxb200502011","title":"基于有限元和最优化方法的淬火冷却过程反传热分析","volume":"41","year":"2005"},{"abstractinfo":"对连铸板坯辊道输送和堆冷过程的变形问题进行了有限元热力分析。分析结果表明,冷却初期辊道输送和堆冷过程铸坯都会发生两端翘曲变形,冷却后期辊道输送过程铸坯会恢复平直而堆冷过程铸坯会发生反向弯曲。堆冷过程中加盖保温罩能使铸坯在冷却后期恢复平直而不发生反向弯曲,并且铸坯内残余应力也变小了。","authors":[{"authorName":"<span style=\"color:red\">牛</span><span style=\"color:red\">山</span><span style=\"color:red\">廷</span>","id":"21186cbb-c742-4efa-8562-386631920fd8","originalAuthorName":"牛山廷"},{"authorName":"张兴中","id":"9cc0c76e-f740-4d49-a200-cd89bb7d2548","originalAuthorName":"张兴中"},{"authorName":"干勇","id":"11573462-13c5-4167-bc7e-b81139fe0827","originalAuthorName":"干勇"}],"doi":"","fpage":"21","id":"18fae41d-2815-4c67-8f68-829e4b299a5c","issue":"8","journal":{"abbrevTitle":"GTYJXB","coverImgSrc":"journal/img/cover/GTYJXB.jpg","id":"30","issnPpub":"1001-0963","publisherId":"GTYJXB","title":"钢铁研究学报"},"keywords":[{"id":"cc955f06-1d83-406a-97f1-38241a2f0c46","keyword":"连铸坯","originalKeyword":"连铸坯"},{"id":"b55057d8-6c18-4b39-a3d8-293f7072f989","keyword":"辊道输送","originalKeyword":"辊道输送"},{"id":"76b7916d-a005-4c1a-87e7-5540b80e39fa","keyword":"堆冷","originalKeyword":"堆冷"},{"id":"c5cffde0-b8af-4154-8297-a3599aa40433","keyword":"变形","originalKeyword":"变形"},{"id":"cd7a749a-50af-4219-b148-cd10ee27d2e9","keyword":"热力分析","originalKeyword":"热力分析"}],"language":"zh","publisherId":"gtyjxb201108004","title":"连铸板坯辊道输送和堆冷过程热力分析","volume":"23","year":"2011"},{"abstractinfo":"中国矿业企业越来越多地走出国门参与国际矿业投资活动,需要更多掌握国际矿业并购投资知识的中国律师提供法律服务.文中根据笔者参与中国某大型企业集团,通过股权并购方式投资阿根<span style=\"color:red\">廷</span>铁矿项目的实践经验,对阿根<span style=\"color:red\">廷</span>的矿业投资法律法规和法律操作实务进行了比较全面的介绍,尤其对于中国律师应发挥的作用和提供的法律服务作出了较详细的阐述.","authors":[{"authorName":"李庆保","id":"970333be-781f-4bb7-85f9-321bb19ee420","originalAuthorName":"李庆保"},{"authorName":"孙豁然","id":"bc39fbfa-02d9-41fe-b58a-96483127046d","originalAuthorName":"孙豁然"}],"doi":"10.3969/j.issn.1001-1277.2007.10.001","fpage":"1","id":"de5b751e-e569-4005-a42c-8c5e15e8c1f5","issue":"10","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"5c5784bd-39b6-4458-a933-b5e8459fa91a","keyword":"国际矿业投资","originalKeyword":"国际矿业投资"},{"id":"c7a68754-b57e-4ee2-9972-db85d3a6fa52","keyword":"律师","originalKeyword":"律师"},{"id":"29afaeee-fd25-456b-97f9-6b6a6eff0299","keyword":"法律实务","originalKeyword":"法律实务"}],"language":"zh","publisherId":"huangj200710001","title":"阿根<span style=\"color:red\">廷</span>矿业立法概述及矿业投资项目操作法律实务","volume":"28","year":"2007"},{"abstractinfo":"简要介绍了冬瓜<span style=\"color:red\">山</span>矿床开采情况,探讨了冬瓜<span style=\"color:red\">山</span>矿床实现深井安全、高效、合理开采所需解决的难题,并提出了解决问题的措施和建议.","authors":[{"authorName":"余茂杰","id":"72b67937-bfa2-4ad3-88ef-ee6ac15fa4c2","originalAuthorName":"余茂杰"},{"authorName":"孙坚刚","id":"9b261a1f-becb-4697-99c7-c7393f1adead","originalAuthorName":"孙坚刚"}],"doi":"10.3969/j.issn.1001-1277.2006.11.007","fpage":"22","id":"dda08d88-eafc-4a3d-b095-8ee1409be862","issue":"11","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"2ab6e43b-5f2b-4ae2-81d7-31e08e581ab7","keyword":"冬瓜<span style=\"color:red\">山</span>矿床","originalKeyword":"冬瓜山矿床"},{"id":"bdad33d2-a968-437b-b2af-bcac1f97f69e","keyword":"深井开采","originalKeyword":"深井开采"},{"id":"e2956675-f5ce-410d-8f54-8779693c29ae","keyword":"安全生产","originalKeyword":"安全生产"}],"language":"zh","publisherId":"huangj200611007","title":"冬瓜<span style=\"color:red\">山</span>矿床深井开采安全生产问题的探讨","volume":"27","year":"2006"},{"abstractinfo":"豫西地区是中国仅次于胶东地区的第二大产金基地,而熊耳山地区则是豫西重要的黄金成矿带之一.研究区内燕山期五丈<span style=\"color:red\">山</span>、花山、合峪三大花岗岩体与区内金的成矿作用有着十分密切的关系.从三大岩体与金矿分布、成矿时间、物质来源等方面研究了二者之间的成生关系.研究认为:五丈<span style=\"color:red\">山</span>、花山、合峪花岗岩体与区内众多金矿床(点)显示出同空间的分布关系;岩体和金矿床均形成于燕山期,成矿与成岩在同阶段或稍晚于成岩阶段;在岩体和矿床铅同位素、硫同位素、氧同位素特征方面,显示出金成矿与五丈<span style=\"color:red\">山</span>、花山、合峪花岗岩体的同源关系.","authors":[{"authorName":"王卫星","id":"a4d12063-a1f1-4b03-9d3a-dfe30d31b928","originalAuthorName":"王卫星"},{"authorName":"邓军","id":"21b72592-594c-46ca-a925-8315b7b9d5e9","originalAuthorName":"邓军"},{"authorName":"龚庆杰","id":"b2b386e6-aaa7-42a6-9590-30f703b732ea","originalAuthorName":"龚庆杰"},{"authorName":"韩志伟","id":"e359106f-344d-4b92-8320-2d6d68780343","originalAuthorName":"韩志伟"},{"authorName":"吴发富","id":"a3bf4c23-56e2-48d9-a818-775516288035","originalAuthorName":"吴发富"},{"authorName":"张改侠","id":"d56e6af7-6e34-4136-83e1-185733f85154","originalAuthorName":"张改侠"}],"doi":"10.3969/j.issn.1001-1277.2010.04.004","fpage":"12","id":"c3ede502-d83f-48be-8060-f2dd4c5db842","issue":"4","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"4aea59de-924d-4eea-a51d-306cda55e013","keyword":"豫西熊耳<span style=\"color:red\">山</span>","originalKeyword":"豫西熊耳山"},{"id":"dc50eb77-682b-4127-adb1-139f7f438a48","keyword":"五丈<span style=\"color:red\">山</span>、花山、合峪花岗岩","originalKeyword":"五丈山、花山、合峪花岗岩"},{"id":"01f00427-1528-4852-94cf-11de1c1594cc","keyword":"金成矿","originalKeyword":"金成矿"}],"language":"zh","publisherId":"huangj201004004","title":"豫西熊耳<span style=\"color:red\">山</span>五丈<span style=\"color:red\">山</span>、花山、合峪花岗岩体与金成矿关系","volume":"31","year":"2010"},{"abstractinfo":"采用电喷雾质谱技术对<span style=\"color:red\">山</span>奈酚的质谱过程进行了表征,并用量子化学方法对<span style=\"color:red\">山</span>奈酚的质谱裂解途径进行了理论研究. 依据密度泛函理论,在B3LYP/6-31G(d)水平,对<span style=\"color:red\">山</span>奈酚的各质谱碎片离子进行了几何结构优化,确定了各碎片的稳定结构;然后,在ROB3LYP/ 6-311 + + G(2d,2p)水平计算了形成各碎片离子所需的键断裂能,进而推导出了<span style=\"color:red\">山</span>奈酚的质谱碎裂途径. 计算结果显示,<span style=\"color:red\">山</span>奈酚主要通过C环碎裂而发生裂解,出现碎片m/z 284.7、256.7、228.7、210.7、184.8、168.7和150.7,其中m/z 210.7的碎片离子键断裂能最小,m/z 150.7的碎片离子键断裂能最大,说明前者很容易由母离子碎片形成,后者较难由母离子碎片形成.","authors":[{"authorName":"梁艳","id":"eeefca80-3b4e-421a-9c01-46df193f376b","originalAuthorName":"梁艳"},{"authorName":"于世锋","id":"ef9b649b-f17e-4083-a3cb-fdd8c5cc14fe","originalAuthorName":"于世锋"},{"authorName":"陈卫军","id":"55d11c62-69f3-466b-bb35-6fd79e122c24","originalAuthorName":"陈卫军"},{"authorName":"曹炜","id":"f81926b8-36bd-468b-bfa6-527b575dd2b3","originalAuthorName":"曹炜"}],"doi":"10.3969/j.issn.1000-0518.2009.10.026","fpage":"1250","id":"d501fab5-e291-428b-93b4-73753ee44f46","issue":"10","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"90ad501e-610e-4bc9-8bdf-459d6d887b21","keyword":"<span style=\"color:red\">山</span>奈酚","originalKeyword":"山奈酚"},{"id":"a0a2353f-5249-4b5a-826d-2bafc96609a4","keyword":"电喷雾质谱","originalKeyword":"电喷雾质谱"},{"id":"00609d18-bab9-47c4-bded-01c0addfaf73","keyword":"裂解途径","originalKeyword":"裂解途径"},{"id":"8ecdd551-eec4-4fe5-b24b-a85dcbc72b5a","keyword":"键断裂能","originalKeyword":"键断裂能"},{"id":"69c1e16b-8aac-4352-991b-2c4e00c65f76","keyword":"量子化学","originalKeyword":"量子化学"}],"language":"zh","publisherId":"yyhx200910026","title":"<span style=\"color:red\">山</span>奈酚的电喷雾质谱裂解途径","volume":"26","year":"2009"},{"abstractinfo":"以玛瑙<span style=\"color:red\">山</span>磁铁精矿为原料,进行了制备氧化球团的成球、焙烧和冶金性能等试验研究.试验结果表明,该精矿的上述各项性能优良,适合生产氧化球团矿.","authors":[{"authorName":"彭志坚","id":"263cfcb8-8de8-47d4-a862-77dd2282c479","originalAuthorName":"彭志坚"},{"authorName":"陈铁军","id":"3281c5cc-d188-4475-a855-22005d7ec96c","originalAuthorName":"陈铁军"},{"authorName":"曾小宁","id":"78a47ff7-8c9a-4f92-a28b-b3d0f769b138","originalAuthorName":"曾小宁"}],"doi":"10.3969/j.issn.1001-1447.2004.01.002","fpage":"5","id":"7bff5676-8027-473d-a84a-41838df4a08e","issue":"1","journal":{"abbrevTitle":"GTYJ","coverImgSrc":"journal/img/cover/GTYJ.jpg","id":"29","issnPpub":"1001-1447","publisherId":"GTYJ","title":"钢铁研究"},"keywords":[{"id":"152abd2b-7e0d-4737-b098-bf37773c0471","keyword":"氧化球团","originalKeyword":"氧化球团"},{"id":"0670c0f5-953f-4efa-aecc-b4c8fc1c59d9","keyword":"试验研究","originalKeyword":"试验研究"},{"id":"c0123bfe-3859-4ea3-abca-2339c2004d6b","keyword":"成球性","originalKeyword":"成球性"},{"id":"03cd7599-f838-481b-9944-cedc1d931a43","keyword":"预热焙烧","originalKeyword":"预热焙烧"},{"id":"1928c094-6f5b-4901-aad4-ed26d04732e2","keyword":"冶金性能","originalKeyword":"冶金性能"}],"language":"zh","publisherId":"gtyj200401002","title":"玛瑙<span style=\"color:red\">山</span>磁铁精矿氧化球团试验研究","volume":"32","year":"2004"}],"totalpage":61,"totalrecord":605}