{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"高频熔敷是以高频感应为热源来熔化金属粉样的一种工艺.本文介绍了高频熔敷的原理及试样制取方法,并以高铬铸铁和低合金耐磨钢两种耐磨材料的制取为例,论述了高频熔敷法研制耐磨材料的可行性.","authors":[{"authorName":"吕奎清","id":"b5fb7126-a75f-40e5-b980-298272dc23dd","originalAuthorName":"吕奎清"},{"authorName":"冯腊初","id":"c2c681fa-36f8-4c4b-9ab2-115feccd425d","originalAuthorName":"冯腊初"},{"authorName":"胡道雄","id":"8f30f95d-0246-469e-87d0-152ed4a3d621","originalAuthorName":"胡道雄"}],"doi":"10.3969/j.issn.1003-1545.2001.04.008","fpage":"28","id":"5947b98a-0baf-4aab-b427-39d9bad1f8d1","issue":"4","journal":{"abbrevTitle":"CLKFYYY","coverImgSrc":"journal/img/cover/CLKFYYY.jpg","id":"10","issnPpub":"1003-1545","publisherId":"CLKFYYY","title":"材料开发与应用"},"keywords":[{"id":"ad4dc142-9b5d-4435-8833-5e2200dce197","keyword":"高频熔敷","originalKeyword":"高频熔敷"},{"id":"fa03f65d-42d4-48c1-9d0c-c35619353518","keyword":"高铬铸铁","originalKeyword":"高铬铸铁"},{"id":"dbb83df8-03e3-403f-b63a-2d15642bcabb","keyword":"低合金耐磨钢","originalKeyword":"低合金耐磨钢"}],"language":"zh","publisherId":"clkfyyy200104008","title":"用高频熔敷法研制耐磨材料","volume":"16","year":"2001"},{"abstractinfo":"以醋酸去氢表雄酮为起始原料,于温度为65~70℃的DMSO-甲苯混合溶剂中,反应时间为22 h,利用二碘酰基苯甲酸(IBX)对醋酸去氢表雄酮的选择性脱氢简便高效地合成了曲螺酮关键中间体3β-乙酰氧基-雄甾-△4,15-二烯-17-酮;探讨了IBX与醋酸去氢表雄酮的摩尔比对目标化合物的收率影响.实验表明.在n(IBX):n(醋酸去氢表雄酮)=1.5∶1.0时,目标化合物的收率最佳,达到73%.目标化合物经紫外光谱、红外光谱、核磁共振氢谱、质谱及元素分析测试技术确证了其化学结构.","authors":[{"authorName":"贺诗华","id":"10e09bce-0f1c-4da2-a46e-8f4a52ddc3d0","originalAuthorName":"贺诗华"},{"authorName":"WANG Chun-Ting","id":"bdce8fe1-6816-44fc-be7c-745d0561e9a4","originalAuthorName":"WANG Chun-Ting"}],"doi":"10.3969/j.issn.1000-0518.2008.08.028","fpage":"992","id":"7f557618-a2da-4590-9eaa-731450d12c72","issue":"8","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"443eb0f0-e283-49f5-9eee-85ef2b28b31f","keyword":"醋酸去氢表雄酮","originalKeyword":"醋酸去氢表雄酮"},{"id":"531409dd-8d3f-4e1d-a203-959cb2b26fe9","keyword":"IBX","originalKeyword":"IBX"},{"id":"d2f377e1-52cc-4022-b8d4-860fd9e5cfb1","keyword":"β-乙酰氧基-雄甾-△5","originalKeyword":"β-乙酰氧基-雄甾-△5"},{"id":"582d52ac-7d46-4c8e-8a6e-2b9faff38d29","keyword":"15-二烯.酮","originalKeyword":"15-二烯.酮"},{"id":"8e8795d5-a2d3-438c-bee5-ba81fc378b71","keyword":"αβ-不饱和羰基甾体","originalKeyword":"αβ-不饱和羰基甾体"},{"id":"b8d1f8c6-e9a5-4a8c-96f0-3982a60608c4","keyword":"中间体","originalKeyword":"中间体"}],"language":"zh","publisherId":"yyhx200808028","title":"用IBX对醋酸去氢表雄酮选择性脱氢合成3β-乙酰氧基-雄甾-△5,15-二烯-17-酮","volume":"25","year":"2008"},{"abstractinfo":"去氢表雄酮醋酸酯经过氧甲酸环氧化、高碘酸开环、IBX氧化、脱水和碱性水解等5步反应,以55%的总收率合成得到了非雄性激素芳香化酶抑制剂3β-羟基雄甾-4-烯-6,17-二酮.在环氧化反应中,利用价廉、易制备的过氧甲酸以几乎定量的收率得到了环氧化合物.使用IBX氧化邻二醇,以98.5%的收率得到氧化产物,避免了使用处理困难并且污染环境的铬试剂.","authors":[{"authorName":"江敏","id":"e478bfe0-208e-4d40-a891-eedb9cf14a31","originalAuthorName":"江敏"},{"authorName":"崔鹏","id":"91ed401e-c66f-41df-ba36-6f08c9699a8d","originalAuthorName":"崔鹏"},{"authorName":"于涛","id":"dffde2e4-50e3-4398-be98-215e1e3e278a","originalAuthorName":"于涛"},{"authorName":"杨帆","id":"e7bdeb82-e4d2-42bc-a46a-8613db59cac6","originalAuthorName":"杨帆"},{"authorName":"汤杰","id":"463f6e76-b476-41cd-bcf8-ec1e609dab13","originalAuthorName":"汤杰"}],"doi":"10.3969/j.issn.1000-0518.2006.12.028","fpage":"1422","id":"bb4b6099-3bef-4f3f-ae66-f1f81d5a1cf8","issue":"12","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"fb0499b0-9a73-4045-887b-8e6206996906","keyword":"3β-羟基雄甾烯二酮","originalKeyword":"3β-羟基雄甾烯二酮"},{"id":"736c2718-509a-4751-a5d8-3fd2eff0bb2d","keyword":"IBX","originalKeyword":"IBX"},{"id":"b13d7ec9-7e89-4df5-91fe-02c2a29babe6","keyword":"合成","originalKeyword":"合成"}],"language":"zh","publisherId":"yyhx200612028","title":"3β-羟基雄甾-4-烯-6,17-二酮的合成","volume":"23","year":"2006"},{"abstractinfo":"通过对采油五厂胡五块生产系统腐蚀因素调查,摸清了胡五块腐蚀原因是产出液中Cl-,HCO3等强腐蚀性离子含量高,同时含有一定量的CO2(最高达4.68%),并含硫酸盐还原菌(SRB),从而形成弱酸性腐蚀水体.经向套管中注入KY-2高效缓性剂(加药浓度100 mg·L-1)后,腐蚀速率由0.0970mm·a-1降为0.0215 mm·a-1,总铁值由38.1 mg·L-1降为16.5 mg·L-1,治理后减少腐蚀作业5井次,取得较好的防腐蚀效果.","authors":[{"authorName":"丁其杰","id":"a726fd07-29b8-44e9-ad8c-d794e8cb40ae","originalAuthorName":"丁其杰"},{"authorName":"韩长喜","id":"2c7adb72-966b-4311-a324-a94a65656839","originalAuthorName":"韩长喜"},{"authorName":"刘生福","id":"026bb2ca-5601-4bfc-aa8a-2903be33cf2d","originalAuthorName":"刘生福"},{"authorName":"王红","id":"05eabf3b-9623-41fa-9353-e57398dcce5e","originalAuthorName":"王红"},{"authorName":"陈慧丽","id":"aaacc03d-0bd4-4484-a79e-40b2463bcaed","originalAuthorName":"陈慧丽"}],"doi":"","fpage":"430","id":"fa6b50c5-fc8d-4a34-a988-1e2286e3384c","issue":"5","journal":{"abbrevTitle":"FSYFH","coverImgSrc":"journal/img/cover/FSYFH.jpg","id":"25","issnPpub":"1005-748X","publisherId":"FSYFH","title":"腐蚀与防护"},"keywords":[{"id":"250af674-c501-4552-8164-351206ec28e3","keyword":"腐蚀因素","originalKeyword":"腐蚀因素"},{"id":"81d7048b-390a-4926-89a3-c9872eea4a80","keyword":"缓蚀剂","originalKeyword":"缓蚀剂"},{"id":"77f74e64-8796-4b22-967c-efb512d794a0","keyword":"综合治理","originalKeyword":"综合治理"},{"id":"967ef120-eb87-4f34-9e38-4738fdf733cd","keyword":"现场试验","originalKeyword":"现场试验"},{"id":"29e68cf8-1da8-4fdc-9ec1-3214dedc76c1","keyword":"采油五厂","originalKeyword":"采油五厂"}],"language":"zh","publisherId":"fsyfh201305016","title":"KY-2缓蚀剂在采油五厂胡七南块的应用","volume":"34","year":"2013"},{"abstractinfo":"以去氢表雄酮(1)为原料,经过氯铬酸吡啶(PCC)氧化得到雄甾-4-烯-3,6,17-三酮(2),然后在Co2+存在下用NaBH4还原,得到芳香酶的强效抑制剂3β-羟基雄甾-4-烯-6,17-二酮(3). 与文献合成方法相比,反应步骤缩短,反应产率提高. 化合物3的结构经NMR和IR测试技术进行了表征,与文献结果一致.","authors":[{"authorName":"张晓佳","id":"a0e3f7d2-e402-4a37-aba8-0f80dc2d5b48","originalAuthorName":"张晓佳"},{"authorName":"崔建国","id":"768d7ce8-02b0-479c-97c6-e6cc70f98388","originalAuthorName":"崔建国"},{"authorName":"李莹","id":"f3549be9-434c-4b1f-a284-604430db6b60","originalAuthorName":"李莹"},{"authorName":"范建春","id":"1c6c993e-32db-4cd3-ba64-9301f4a7a512","originalAuthorName":"范建春"}],"doi":"10.3724/SP.J.1095.2010.90429","fpage":"615","id":"3e32b24d-4ae2-4cfc-95ac-0496eaea79c5","issue":"5","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"84cb8df9-fa7f-430f-af32-283b5de84ad7","keyword":"去氢表雄酮","originalKeyword":"去氢表雄酮"},{"id":"cf0aa859-4ca0-4f2b-a3fe-d0c278518532","keyword":"3β-羟基雄甾烯二酮","originalKeyword":"3β-羟基雄甾烯二酮"},{"id":"02f9c6df-2b66-4f6a-a31e-35af35ed0f98","keyword":"合成","originalKeyword":"合成"}],"language":"zh","publisherId":"yyhx201005024","title":"3β-羟基雄甾-4-烯-6,17-二酮合成的一种新方法","volume":"27","year":"2010"},{"abstractinfo":"辊道是连铸机中不可或缺的部分.辊道不仅需要满足铸坯的输送能力,更重要的是能满足其所处位置的速度调节要求.在实际运用过程中辊道除了由于本身结构不合理导致故障外,辊道控制上的不合理同样也会发生故障.通过在辊道调试和生产过程中发生的问题,从辊道的结构、辊道齿轮马达的选型以及辊道的控制这3个方面,来分析辊道设计时需要考虑的因素.辊道的结构除了分析固定式和吊挂式辊道的区别外还着重分析了减速箱和辊道轴的联接方式.文章详细阐述了辊道齿轮马达的选型步骤,并就不同控制要求对齿轮马达选型的影响进行了分析,从而进一步指出了辊道设计中齿轮马达选型与控制之间相辅相成的重要性.","authors":[{"authorName":"沙晔","id":"9c8aed6f-e389-4145-bc8d-625014abd98c","originalAuthorName":"沙晔"}],"doi":"","fpage":"12","id":"5d4fd966-6b87-4bc3-9c8b-c7ea0ea84876","issue":"4","journal":{"abbrevTitle":"LZ","coverImgSrc":"journal/img/cover/LZ.jpg","id":"52","issnPpub":"1005-4006","publisherId":"LZ","title":"连铸"},"keywords":[{"id":"ecaa6a21-c505-4ed7-b5a8-73169686ee41","keyword":"辊道","originalKeyword":"辊道"},{"id":"23930ffc-b9e2-4827-b9bf-3ba76bcc4d63","keyword":"辊道齿轮马达","originalKeyword":"辊道齿轮马达"},{"id":"d11972f3-1394-46ab-8bd2-32e20588149c","keyword":"辊道控制","originalKeyword":"辊道控制"}],"language":"zh","publisherId":"lz201404003","title":"浅谈辊道设计","volume":"","year":"2014"},{"abstractinfo":"采用对甲苯磺酸(pTsOH)和i氟乙酸(TFA)为催化剂,邻碘酰苯甲酸(IBX)为氧化剂,于40-45℃,在T01.DMSO混合溶剂中,将醋酸去氢表雄酮选择性脱氢,简便高效地制备了3β-乙酰氧基.雄甾-5.15-二烯-17-酮(I),产率分别为77%和89%.本合成线路有效避免了经溴代脱溴和发酵等合成线路反应繁多、试剂毒性大、成本高以及单纯IBX选择性脱氢反应温度高、反应时间长等不足.然后将化合物I在碱性条件下水解得到3β-羟基.雄甾-5,15-二烯-17-酮(Ⅱ),产率92%.最后将化合物Ⅱ与碘化三甲基氧化锍进行迈克尔共轭加成制得目的物15β,16β-亚甲基.雄甾-5-烯-3β-醇-17-酮(Ⅲ),产率89%.中间体和目的物经紫外光谱、红外光谱、核磁共振氧谱、质谱及元素分析确证了其化学结构.","authors":[{"authorName":"贺诗华","id":"2b14f0e0-fde8-4e8a-9ec8-d52a03a85213","originalAuthorName":"贺诗华"}],"doi":"10.3969/j.issn.1000-0518.2009.04.008","fpage":"405","id":"2fd086f4-7e54-4847-8967-f93367e2121b","issue":"4","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"77f7c9ee-7c9f-40c7-9f9e-5f80a26dc617","keyword":"醋酸去氢表雄酮","originalKeyword":"醋酸去氢表雄酮"},{"id":"ba4fe187-e69d-4cc2-86be-81d24c3bdb7d","keyword":"IBX","originalKeyword":"IBX"},{"id":"d51fa099-b86a-47b6-bbd4-db9f43e7b3ac","keyword":"15β","originalKeyword":"15β"},{"id":"cad463b9-5284-48e8-94a2-5186846f3d94","keyword":"16β-亚甲基-雄甾烯-3β-醇酮","originalKeyword":"16β-亚甲基-雄甾烯-3β-醇酮"},{"id":"4e882fea-712c-4dad-930f-fc8ee3da9e4e","keyword":"α","originalKeyword":"α"},{"id":"24e47773-c5a2-48d7-b1cf-9dfb73b19575","keyword":"β-不饱和羰基甾体","originalKeyword":"β-不饱和羰基甾体"},{"id":"d13311f5-a635-4804-a9cd-fb20816d58aa","keyword":"中间体","originalKeyword":"中间体"}],"language":"zh","publisherId":"yyhx200904008","title":"简便高效合成15β,16β-亚甲基-雄甾-5-烯-3β-醇-17-酮","volume":"26","year":"2009"},{"abstractinfo":"随着纳米碳管(CNTs)的广泛应用,其不可避免地进入环境中,天然有机质与CNTs的相互作用增大了CNTs的分散性,可能带来更大的环境风险.本研究系统考察了溶解胡敏酸(HA)对CNTs的悬浮效果,发现随着悬浮次数的增加,HA的累积吸附量不断增大,而CNTs的悬浮量先增加后减少,表明CNTs确实存在分级悬浮的现象.通过透射电子显微镜和热重分析对高悬浮量和低悬浮量的CNTs进行表征发现,高悬浮量的CNTs相比低悬浮量的CNTs短且碎,说明具有较多缺陷的CNTs可能是易悬浮的部分;尽管高悬浮量的CNTs对HA的累积吸附量较低,但其较早的出现了明显的失重平台,具有较差的热稳定性.两方面的证据可以证实CNTs自身性质的差异是其分级悬浮的控制性因素.","authors":[{"authorName":"魏超贤","id":"763376ea-2448-4547-bac0-80ec19040b45","originalAuthorName":"魏超贤"},{"authorName":"张凰","id":"ef50f9b4-3744-4d99-aff6-7857b144cd2f","originalAuthorName":"张凰"},{"authorName":"张迪","id":"f0acfb07-9e5a-49d8-972c-708411258223","originalAuthorName":"张迪"},{"authorName":"杨晓磊","id":"26d8c99a-9cf5-4743-b0c8-db29854a74c7","originalAuthorName":"杨晓磊"}],"doi":"","fpage":"252","id":"2fdfda36-fcce-4a68-8dc3-514fcd180646","issue":"3","journal":{"abbrevTitle":"XXTCL","coverImgSrc":"journal/img/cover/XXTCL.jpg","id":"70","issnPpub":"1007-8827","publisherId":"XXTCL","title":"新型炭材料"},"keywords":[{"id":"f89293b1-e366-47f8-a046-b5e210588eae","keyword":"纳米碳管","originalKeyword":"纳米碳管"},{"id":"78e1c012-4a87-4723-8c61-4e467c003f4f","keyword":"分级悬浮","originalKeyword":"分级悬浮"},{"id":"dc55b4c3-889e-4ad6-92cd-f67e6d1c6dd1","keyword":"透射电镜","originalKeyword":"透射电镜"},{"id":"45aafcc6-3606-4cac-a8ad-f1ba1624c673","keyword":"热重分析","originalKeyword":"热重分析"}],"language":"zh","publisherId":"xxtcl201703009","title":"纳米碳管在胡敏酸中的分级悬浮","volume":"32","year":"2017"},{"abstractinfo":"胡家峪铜矿床大地构造位置处于华北克拉通中部造山带南缘的中条山地区,矿床主要赋存于古元古界中条群篦子沟组含碳片岩、不纯大理岩和硅质钠长岩等岩石中,次为余家山组白云石大理岩中。对矿区内的含矿岩系进行了全岩地球化学测试分析,主量元素特征表明矿区内的含矿岩系均表现出富镁、富铝的特征;微量元素特征显示,所有样品均呈现出Nb、Ta、Ti负异常的现象,显示出与俯冲带岩浆地球化学类似的特征;稀土元素特征显示出一定程度的轻重稀土分馏,轻稀土富集,所有样品都表现出不同程度的铕负异常,表明这些含矿岩系形成于还原沉积环境中。研究认为,胡家峪铜矿床的成矿构造背景为俯冲后形成的弧后盆地;容矿岩石与国内典型热水喷流矿床相比,在地球化学特征方面有一定相似之处。因此,胡家峪铜矿床应为热水喷流沉积矿床。","authors":[{"authorName":"王子维","id":"ad0e6313-d4d6-4dc0-abbc-371068f119b9","originalAuthorName":"王子维"},{"authorName":"杨言辰","id":"fa6e5af9-31d8-4d28-b1af-18d546d8ab54","originalAuthorName":"杨言辰"},{"authorName":"韩世炯","id":"b700d724-a8a3-4d42-b26b-454049959c36","originalAuthorName":"韩世炯"},{"authorName":"张国宾","id":"517404e2-1f0d-4776-82dd-6ba27096d546","originalAuthorName":"张国宾"}],"doi":"10.11792/hj20140306","fpage":"26","id":"96823248-4ad8-4d6d-ab8a-555c99566f98","issue":"3","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"603922d4-cc44-4fda-bb47-6823130fa04c","keyword":"中条山","originalKeyword":"中条山"},{"id":"bf949b0b-54a2-4d58-9ff5-6002214136b9","keyword":"胡家峪铜矿床","originalKeyword":"胡家峪铜矿床"},{"id":"8c83c06b-9063-4f0b-9086-cf4fe1f30f43","keyword":"地球化学","originalKeyword":"地球化学"},{"id":"df2e6d76-c8a2-4b84-8264-265ce7b71582","keyword":"热水喷流沉积矿床","originalKeyword":"热水喷流沉积矿床"}],"language":"zh","publisherId":"huangj201403006","title":"中条山胡家峪铜矿区含矿岩系的地球化学特征及其地质意义","volume":"","year":"2014"},{"abstractinfo":"多环芳烃(Polycyclic aromatic hydrocarbons,PAHs)对人类健康和生态环境的危害近年来备受关注,有关PAHs在DOM上吸附特征的研究已有大量报道.但DOM构成成分的复杂性给PAHs与DOM相互作用的研究工作带来了困难.将DOM分离为不同化学结构和元素组成的组分,并分析其不同组分对与PAHs相互作用的具体贡献十分必要.本研究利用离子交换树脂将胡敏酸(Humic acid,HA)按照疏水性和酸碱性分离为不同组分,使用透析平衡法确定不同结构的HA与菲(PHE)的结合平衡常数,并对结合后样品进行傅里叶变换红外光谱(FTIR)分析.结果显示,HA组分中的极性和脂肪族含量对PHE在HA上的结合有重要影响和不同的贡献机制.疏水性HA组分对PHE的结合亲和力高于亲水性HA组分,疏水性中性组分(HoN)与PHE之间的结合系数最高,亲水性酸性组分(HiA)对PHE在HA上的结合贡献最少,HoN对PHE的环境风险有重要影响.研究中首次通过对结合前后不同有机质组分的FTIR光谱图的对比分析,进一步证明脂肪族是HA中与PHE发生相互作用的主要组分.","authors":[{"authorName":"王琳","id":"3b5d9548-8ed4-4ed5-b54f-af24076c50a3","originalAuthorName":"王琳"},{"authorName":"田路萍","id":"86da6f16-d4ee-4f52-ae3b-ed9d04e3474b","originalAuthorName":"田路萍"},{"authorName":"李芳芳","id":"9301c727-eac8-41eb-9725-93815d4544f4","originalAuthorName":"李芳芳"},{"authorName":"吴敏","id":"0e8d96c3-ac49-464c-99d0-fab5e90c650f","originalAuthorName":"吴敏"}],"doi":"10.7524/j.issn.0254-6108.2017.04.2016081902","fpage":"745","id":"36c3ac72-435d-418a-9603-812a691f5498","issue":"4","journal":{"abbrevTitle":"HJHX","coverImgSrc":"journal/img/cover/HJHX.jpg","id":"43","issnPpub":"0254-6108","publisherId":"HJHX","title":"环境化学 "},"keywords":[{"id":"6eda2fbc-7c54-4623-a99f-09a8ba85cf46","keyword":"胡敏酸","originalKeyword":"胡敏酸"},{"id":"d67dac65-54a9-48da-83d6-48f58000ab11","keyword":"离子交换树脂","originalKeyword":"离子交换树脂"},{"id":"729c4a44-5d7a-469e-aab0-9c4186a9a22d","keyword":"多环芳烃","originalKeyword":"多环芳烃"},{"id":"4cc7df56-04ee-465a-8b48-4d85935568d3","keyword":"吸附","originalKeyword":"吸附"},{"id":"9dcb7c53-fecd-4935-884d-6e1a9e28d7e4","keyword":"疏水性中性组分(HoN)","originalKeyword":"疏水性中性组分(HoN)"}],"language":"zh","publisherId":"hjhx201704008","title":"脂肪族在不同组分胡敏酸与菲结合中的作用","volume":"36","year":"2017"}],"totalpage":166,"totalrecord":1656}