{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"硅灰是超高强混凝土(UHSC)中最难被分散的组分,超高强混凝土性能提升需要硅灰的有效分散.通过自由基反应,将乙烯基三乙氧基硅烷接枝引入了主链结构中,合成了一种含有硅烷基团的聚羧酸减水剂(PCES).采用微坍落度法研究了 PCES 对水泥-硅灰浆体流动性的影响规律.用有机碳分析仪研究了PCES在水泥净浆和硅灰表面的吸附性能.研究结果表明,聚羧酸减水剂分子结构中引入硅烷基团后,分散水泥-硅灰浆体的能力明显提高,在水泥颗粒表面吸附量增加幅度不大,而在硅灰表面的吸附量有较大幅度增加.PCES能够在含有羟基的硅灰表面同时发生物理吸附和化学吸附,硅灰表面吸附更多的减水剂分子后,其空间排斥能增加,这可能是PCES分散能力提升一个机理.相较普通聚羧酸减水剂,硅烷改性的聚羧酸减水剂更适宜配制超高强混凝土.","authors":[{"authorName":"顾越","id":"c8deaf8a-23dc-48ec-9da8-f49e07451773","originalAuthorName":"顾越"},{"authorName":"冉千平","id":"fb5bb9c7-dd13-4d2e-bf46-48edbe65fa81","originalAuthorName":"冉千平"},{"authorName":"舒鑫","id":"9f9492df-743d-4fc4-bf75-883691696475","originalAuthorName":"舒鑫"},{"authorName":"于诚","id":"8bb53fc7-2c7b-47b3-ba21-44562a9b94d9","originalAuthorName":"于诚"},{"authorName":"","id":"62c010d5-6a26-4dc9-bf15-1da273b3a506","originalAuthorName":"常洪雷"}],"doi":"10.3969/j.issn.1001-9731.2015.12.018","fpage":"12087","id":"23d2829b-af15-4ae0-a279-e659bf717a34","issue":"12","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"48600c19-3842-4faa-9946-caa2afa0df31","keyword":"聚羧酸减水剂","originalKeyword":"聚羧酸减水剂"},{"id":"c56a5291-df8e-4f37-9235-c6c9ab585a09","keyword":"硅烷改性","originalKeyword":"硅烷改性"},{"id":"07c4fa00-3bbe-4a43-83fd-8d7eeee038cd","keyword":"硅灰","originalKeyword":"硅灰"},{"id":"0704050d-6048-454a-8c04-5726a09fcf62","keyword":"吸附","originalKeyword":"吸附"}],"language":"zh","publisherId":"gncl201512018","title":"硅烷改性聚羧酸减水剂对水泥-硅灰浆体分散性能影响及机理?","volume":"","year":"2015"},{"abstractinfo":"干湿交替下氯离子分布曲线中可能存在氯离子浓度峰。本文主要研究了不同水灰比对氯离子浓度峰的影响,以及适合这种氯离子分布曲线计算扩散参数的方法。实验结果显示,峰值氯离子浓度( Cmax )随水灰比呈双曲线关系增大,而浓度峰出现的位置与水灰比呈较好线性增长关系。此外,去掉氯离子增大阶段并以浓度峰出现的深度为零点拟合氯离子下降阶段的方法较为适合被应用于出现浓度峰的氯离子分布曲线中来获得扩散参数。","authors":[{"authorName":"","id":"155a47cd-031e-4e96-9423-b6def50bcc5a","originalAuthorName":"常洪雷"},{"authorName":"穆松","id":"fc8acc3e-47cc-4c14-9f3d-b30d63e7622d","originalAuthorName":"穆松"},{"authorName":"刘玉静","id":"f618d116-c60d-4bbb-a768-ac6c154f8d04","originalAuthorName":"刘玉静"},{"authorName":"刘建忠","id":"daa6b52c-18da-488b-a6cd-cd0151bc9032","originalAuthorName":"刘建忠"}],"doi":"","fpage":"14","id":"20c75e4f-6586-4044-9c6a-cb58d59ea5b7","issue":"1","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报 "},"keywords":[{"id":"1942bc06-d8f2-42c7-afdd-e7d7ea62297a","keyword":"水泥净浆","originalKeyword":"水泥净浆"},{"id":"6712201e-089a-476f-8454-f2478d9f9809","keyword":"干湿交替","originalKeyword":"干湿交替"},{"id":"e3e5fb77-916f-4a77-8489-3845954bbdd2","keyword":"峰值氯离子浓度","originalKeyword":"峰值氯离子浓度"},{"id":"6289686a-8531-4303-a6ab-513f9cf25828","keyword":"氯离子扩散系数","originalKeyword":"氯离子扩散系数"},{"id":"a0830991-96ef-4c3b-ad2f-64dbc445ae30","keyword":"表面氯离子浓度","originalKeyword":"表面氯离子浓度"}],"language":"zh","publisherId":"gsytb201701003","title":"存在浓度峰的氯离子分布曲线及其扩散参数的计算方法","volume":"36","year":"2017"},{"abstractinfo":"在旋转蒸发体系中,研究酸金的制备方法,并探索了不同条件下酸金产品的金含量。实验结果表明在105℃下蒸发45 min 为相对最优制备条件;用90℃蒸馏水洗涤90 min 为酸金最佳后续处理条件。","authors":[{"authorName":"王大维","id":"2386af00-2848-4f6d-88c7-856f413d5351","originalAuthorName":"王大维"},{"authorName":"李岩松","id":"d9654b8f-2017-4879-83df-0ca51f7ca825","originalAuthorName":"李岩松"}],"doi":"","fpage":"127","id":"cec5875d-c75c-4651-8f79-5d9a2ff0c406","issue":"z1","journal":{"abbrevTitle":"GJS","coverImgSrc":"journal/img/cover/GJS.jpg","id":"38","issnPpub":"1004-0676","publisherId":"GJS","title":"贵金属"},"keywords":[{"id":"44c405cf-9cd4-4923-80c3-852911bd01df","keyword":"无机化学","originalKeyword":"无机化学"},{"id":"8a9139aa-1cf7-4217-9625-bf738392e292","keyword":"酸金","originalKeyword":"雷酸金"},{"id":"8cac939c-32b9-4d5f-8ee6-7954bc2c31e1","keyword":"金含量","originalKeyword":"金含量"},{"id":"fdb1b20b-51e3-433d-acd1-49e6d94ced07","keyword":"洗涤水","originalKeyword":"洗涤水"},{"id":"58702bd2-3385-4f3e-ac76-53c46e66966e","keyword":"洗涤处理","originalKeyword":"洗涤处理"}],"language":"zh","publisherId":"gjs2013z1026","title":"制备高纯度酸金的工艺研究","volume":"","year":"2013"},{"abstractinfo":"对江西州窑从东汉晚期至晚唐五代8期400个瓷胎样品进行了中子活化分析, 分析结果显示碱金属元素Na和Rb、碱土金属元素Ba及Fe等作为胎的助熔剂元素随年代的变化趋势相似, 都呈现出两头高中间低的U字形变化规律, 其中Fe作为呈色元素, 其含量的高低与瓷胎颜色的深浅是一致的.分析结果还揭示州窑的发展与衰落以及窑址的不断变迁可能都与制瓷原料的发现与消耗有关.对分析数据进行主成分分析, 可以将不同时期烧制的瓷胎样品大致分为5组: (1)东汉晚期东吴时期; (2)两晋和南朝时期; (3)隋代; (4)初唐和盛唐时期; (5)晚唐五代时期.","authors":[{"authorName":"冯向前","id":"bb73e52d-559b-4aa0-9509-23f003727157","originalAuthorName":"冯向前"},{"authorName":"冯松林","id":"13c25759-1db8-425f-b21e-84ae056cff1f","originalAuthorName":"冯松林"},{"authorName":"张文江","id":"8d96cc12-6a67-4944-817b-215bb3dec0c3","originalAuthorName":"张文江"},{"authorName":"樊昌生","id":"e5d11a72-233a-41c4-a38d-1904e5cfad2a","originalAuthorName":"樊昌生"},{"authorName":"权奎山","id":"1f96e504-74c9-4ce8-88b5-559409c26f07","originalAuthorName":"权奎山"}],"doi":"10.3969/j.issn.1007-4627.2005.01.043","fpage":"142","id":"70359f2b-8369-4007-987f-7444de816237","issue":"1","journal":{"abbrevTitle":"YZHWLPL","coverImgSrc":"journal/img/cover/YZHWLPL.jpg","id":"78","issnPpub":"1007-4627","publisherId":"YZHWLPL","title":"原子核物理评论 "},"keywords":[{"id":"5d15414d-1511-4f0b-9870-b7212e945429","keyword":"核分析技术","originalKeyword":"核分析技术"},{"id":"b1f77f43-f953-4410-ad65-387980a986c6","keyword":"州窑古瓷","originalKeyword":"洪州窑古瓷"},{"id":"3118b21f-e76c-44d6-895c-ff785bb4462d","keyword":"元素特征","originalKeyword":"元素特征"}],"language":"zh","publisherId":"yzhwlpl200501043","title":"历代州窑古瓷的元素组成特征的中子活化分析研究","volume":"22","year":"2005"},{"abstractinfo":"利用MCNPx程序计算了宽能谱中子姆仪的响应曲线. 计算表明, 增加铅层对低能中子的响应没有明显的影响, 但在高能区(几百MeV以上)宽能谱中子姆仪的响应与铅层的厚度有关. 铅层厚度为0.6 cm时响应比普通姆仪提高约3倍, 当铅层厚度增加到1.2 cm时响应高约5倍. 虽然计算结果与ICRP建议书中的H*(10)曲线相比还有一定的差别, 但改变慢化体的结构对提高高能中子的探测效率是有明显效果的.","authors":[{"authorName":"苏有武","id":"b13a53a6-9e3d-478b-aa47-be1279e4bc72","originalAuthorName":"苏有武"},{"authorName":"朱小龙","id":"c4f288a9-88bf-4500-82a9-9e8d80afa250","originalAuthorName":"朱小龙"},{"authorName":"李武元","id":"2eb78d01-91d4-405e-b775-6a5f84375216","originalAuthorName":"李武元"}],"doi":"10.3969/j.issn.1007-4627.2005.02.008","fpage":"198","id":"c12e5d19-4f9b-4747-a56c-01d872bed355","issue":"2","journal":{"abbrevTitle":"YZHWLPL","coverImgSrc":"journal/img/cover/YZHWLPL.jpg","id":"78","issnPpub":"1007-4627","publisherId":"YZHWLPL","title":"原子核物理评论 "},"keywords":[{"id":"73d0fcfc-edbb-467d-9361-51dde18eb7d5","keyword":"MCNPx","originalKeyword":"MCNPx"},{"id":"c7ffb226-b301-4457-bf52-0778554f43a8","keyword":"高能中子","originalKeyword":"高能中子"},{"id":"259b1325-a1f2-47f5-9744-16330e2531f9","keyword":"姆仪","originalKeyword":"雷姆仪"}],"language":"zh","publisherId":"yzhwlpl200502008","title":"用MCNPx程序计算宽能谱中子姆仪的响应曲线","volume":"22","year":"2005"},{"abstractinfo":"研究了在35 kV输电线路雷电\"易击段\"绝缘子串上并接线路避雷器来提高线路耐水平的方法.建立了雷电波作用下35 kV输电线路电磁暂态仿真计算模型,借助电磁暂态软件(ATP-EMTP)仿真分析了线路避雷器对35 kV输电线路耐水平的影响.计算结果表明,在\"易击段\"架设线路避雷器后.可明显提高35kV输电线路的耐水平,尤其直击导线时,线路避雷器的作用效果更加明显;雷击杆塔塔顶时,杆塔接地电阻是影响35 kV输电线路耐水平的重要因素.最后,仿真估算了不同避雷器架设方案下35 kV输电线路的耐水平.本研究对于平原地区35 kV输电线路的线路防雷具有重要意义.","authors":[{"authorName":"张要强","id":"b29609cd-7c7a-4613-aad8-0b0e780e2067","originalAuthorName":"张要强"},{"authorName":"张帆","id":"0a58b80a-d923-485f-8ba8-df2c40059b17","originalAuthorName":"张帆"}],"doi":"10.3969/j.issn.1009-9239.2008.01.011","fpage":"33","id":"241df99d-a2b3-4e8e-8c05-cbe6200bcb34","issue":"1","journal":{"abbrevTitle":"JYCL","coverImgSrc":"journal/img/cover/JYCL.jpg","id":"50","issnPpub":"1009-9239","publisherId":"JYCL","title":"绝缘材料"},"keywords":[{"id":"ee64f5db-9638-4cda-b3a9-a1dc771ed6f0","keyword":"输电线路","originalKeyword":"输电线路"},{"id":"a6b520df-352c-4acb-bf87-66b94f8823b6","keyword":"杆塔接地电阻","originalKeyword":"杆塔接地电阻"},{"id":"50d1b573-08f7-4603-9285-eb2996f244fc","keyword":"线路型避雷器","originalKeyword":"线路型避雷器"},{"id":"d99c2bae-e251-4776-9bdf-feb7bf5e5c1a","keyword":"耐水平","originalKeyword":"耐雷水平"}],"language":"zh","publisherId":"jycltx200801011","title":"采用线路型避雷器提高35 kV输电线路的耐水平","volume":"41","year":"2008"},{"abstractinfo":"建立了高效离子交换色谱和紫外检测系统快速分离青枯尔氏菌的细菌色谱方法.通过比较青枯尔氏菌悬浮在哌嗪-HCl缓冲体系和双蒸水后的菌体数变化及细胞形态变化,分析该缓冲液对青枯尔氏菌生长活性及细胞表面特性的影响.结果表明,青枯尔氏菌悬浮在乎衡缓冲液、洗脱缓冲液和双蒸水中的菌体数量无明显差异,分别为6.467× 109、6.267× 109和6.233× 109 cfu/mL.透射电镜观察发现,3种溶液处理后,青枯尔氏菌均保持完整的细胞结构研究了缓冲液pH值、流速及菌体细胞浓度对青枯尔氏菌色谱分离效果的影响,确定青枯尔氏菌的最佳色谱分离条件为:缓冲液pH值为8.0,流速为2 mL/min,菌体浓度大于1.0× 108 cfu/mL且小于1.0× 1010cfu/mL.该分离条件缩短了分离时间,提高了分离效率,为快速分离青枯尔氏菌提供了一种有效的手段,同时也为细菌等微生物的分离提供了新途径.","authors":[{"authorName":"郑雪芳","id":"907ee62c-28b3-4325-a2f4-aea6a26488dd","originalAuthorName":"郑雪芳"},{"authorName":"刘波","id":"7b47ae6a-ad67-480c-b51d-b6918a864235","originalAuthorName":"刘波"},{"authorName":"朱育菁","id":"b9952f82-94d5-4c37-be07-402a2792101a","originalAuthorName":"朱育菁"},{"authorName":"陈德局","id":"be26aac8-6ec0-4c4c-a3b6-4b85cdf7b49e","originalAuthorName":"陈德局"}],"doi":"10.3724/SP.J.1123.2016.06044","fpage":"1091","id":"24aac966-5573-476b-962a-6a4211c989ec","issue":"11","journal":{"abbrevTitle":"SP","coverImgSrc":"journal/img/cover/SP.jpg","id":"58","issnPpub":"1000-8713","publisherId":"SP","title":"色谱 "},"keywords":[{"id":"f0f84c50-e3f7-4689-8ac4-62421666b585","keyword":"高效离子交换色谱","originalKeyword":"高效离子交换色谱"},{"id":"25b2cf27-fc1a-450d-816a-5aaebf69732f","keyword":"分离","originalKeyword":"分离"},{"id":"27393040-9df5-45df-9b69-9af420d98220","keyword":"青枯尔氏菌","originalKeyword":"青枯雷尔氏菌"},{"id":"58f11eb5-6a94-4566-9b66-7779b03dc09b","keyword":"细胞表面特性","originalKeyword":"细胞表面特性"}],"language":"zh","publisherId":"sp201611011","title":"青枯尔氏菌特征菌株高效离子交换色谱快速分离条件的优化","volume":"34","year":"2016"},{"abstractinfo":"提出了坡密子就是质量~2.2 GeV、量子数为IGJPC=0 +2++的张量胶子球的其轨迹. 高能质子-质子弹性散射微分截面的研究表明, 这个猜想与张量胶子球的实验材料完全一致的.","authors":[{"authorName":"马维兴","id":"c36f6671-425b-4546-916d-86d1b38e6ecf","originalAuthorName":"马维兴"},{"authorName":"刘龙章","id":"878166a6-0d97-42c5-b750-1a5404004206","originalAuthorName":"刘龙章"},{"authorName":"周丽娟","id":"14959fca-d206-4012-94f1-6948459acbc4","originalAuthorName":"周丽娟"},{"authorName":"胡朝晖","id":"07098e95-1ee6-48c7-a785-f4b6ac3e3c49","originalAuthorName":"胡朝晖"}],"doi":"10.3969/j.issn.1007-4627.2001.04.021","fpage":"300","id":"bfd174d6-0086-4dcd-b632-70eb7eb4cc51","issue":"4","journal":{"abbrevTitle":"YZHWLPL","coverImgSrc":"journal/img/cover/YZHWLPL.jpg","id":"78","issnPpub":"1007-4627","publisherId":"YZHWLPL","title":"原子核物理评论 "},"keywords":[{"id":"09b84806-c2e9-4b99-9655-bcec2fd3caa6","keyword":"坡密子","originalKeyword":"坡密子"},{"id":"d0346eda-42b7-45aa-804b-8b646c817c48","keyword":"胶子球","originalKeyword":"胶子球"},{"id":"1e597ceb-49a4-44b4-a7f9-b80eaada16db","keyword":"质子质子散射","originalKeyword":"质子质子散射"},{"id":"e2170242-ef63-42ba-961f-877ed1ce392f","keyword":"量子色动力学","originalKeyword":"量子色动力学"}],"language":"zh","publisherId":"yzhwlpl200104021","title":"现代物理学研究中的一个新的前沿——坡密子是一个其化的张量胶子球","volume":"18","year":"2001"},{"abstractinfo":"以乳酸为原料,压下运用溶液直接缩聚法合成了具有一定粘均分子量的聚乳酸.实验过程中考察了不同带水剂、催化剂对聚乳酸分子量的影响以及反应时间与分子量的变化关系.结果表明,本实验条件下合成聚乳酸的最佳工艺条件为:选择氯化亚锡为催化剂,用量0.5wt%,在聚合温度120℃、压下反应20h.在此条件下,可获得较高分子量的聚乳酸.这也为探究如何生成分子量较高的聚乳酸提供一定的参考依据.","authors":[{"authorName":"张娜","id":"cf98a4f4-f7b2-4481-b79f-b989a0399ef9","originalAuthorName":"张娜"},{"authorName":"赵崇峰","id":"fc2832e8-1c5a-4a8f-a406-806a218eb30e","originalAuthorName":"赵崇峰"},{"authorName":"封瑞江","id":"b8ed0c7d-c06c-4906-9d07-7915bdd35073","originalAuthorName":"封瑞江"},{"authorName":"王强","id":"93aa9d58-aed5-47d8-b943-f052640a9452","originalAuthorName":"王强"}],"doi":"10.3969/j.issn.1671-5381.2006.01.007","fpage":"24","id":"6ead17c2-d695-4eac-ba19-f9843abfa43b","issue":"1","journal":{"abbrevTitle":"HCCLLHYYY","coverImgSrc":"journal/img/cover/HCCLLHYYY.jpg","id":"42","issnPpub":"1671-5381","publisherId":"HCCLLHYYY","title":"合成材料老化与应用"},"keywords":[{"id":"25df516a-f1c4-4051-bd21-e9c5e62a06eb","keyword":"聚乳酸","originalKeyword":"聚乳酸"},{"id":"8c19a8b4-04e8-497e-a0e0-1b7062776a25","keyword":"乳酸","originalKeyword":"乳酸"},{"id":"4fd5f18a-5cde-4490-a331-1949fedc3140","keyword":"直接缩聚","originalKeyword":"直接缩聚"},{"id":"a12073f6-dac2-4d10-b7d5-b870238056e6","keyword":"合成","originalKeyword":"合成"}],"language":"zh","publisherId":"hccllhyyy200601007","title":"乳酸压聚合研究","volume":"35","year":"2006"},{"abstractinfo":"对粘质沙氏菌脂肪酶进行了固定化研究,确定硅藻土和环氧树脂Eupergit C是较好的固定化载体. 固定化后酶的热稳定性、 pH稳定性及储存稳定性均明显提高. 以Eupergit C共价固定的脂肪酶,其操作稳定性比硅藻土吸附酶好,重复使用10批次后,剩余酶活力还有50%左右,戊二醛交联对Eupergit C固定化酶稳定性的提高没有明显效果,而硅藻土吸附酶经戊二醛交联后稳定性有所提高,经5批次反应后剩余酶活力还有50%. 使用交联后的硅藻土固定化酶(1 g, 200 U), 在两相搅拌反应器(工作体积200 ml, 甲苯∶水体积比=1)中对地尔硫卓手性前体(±)-反式3-(4'-甲氧苯基)缩水甘油酸甲酯((±)-MPGM)(有机相浓度为0.5 mol/L)进行了催化拆分,经5批次反应后,共得纯(2R,3S)-(-)-MPGM 18.6 g, 产品光学纯度(对映体过量)>99%, 总收率为37.2%.","authors":[{"authorName":"龙章德","id":"e27f653e-6a49-4f94-8274-27364dda5c6e","originalAuthorName":"龙章德"},{"authorName":"许建和","id":"d79acb69-3bfa-4efa-ab4a-b0500b029e42","originalAuthorName":"许建和"},{"authorName":"潘江","id":"034df00c-874d-4d0b-abb5-ebdfd1204e00","originalAuthorName":"潘江"}],"doi":"","fpage":"175","id":"c5ed66b5-b317-4509-bef2-759e9d72248c","issue":"2","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报 "},"keywords":[{"id":"87f94e01-370c-409e-85df-31c246568d89","keyword":"粘质沙氏菌","originalKeyword":"粘质沙雷氏菌"},{"id":"506dfe35-8f7d-40e0-bd24-d929e392bd9b","keyword":"脂肪酶","originalKeyword":"脂肪酶"},{"id":"e12141b4-2c78-4837-a293-b27d9d437ef1","keyword":"固定化","originalKeyword":"固定化"},{"id":"ee5239e9-6c1a-4b65-8c96-f92e82ec66d3","keyword":"对映选择性水解","originalKeyword":"对映选择性水解"},{"id":"92bfee8e-085c-4f16-aee3-8156f4ebf653","keyword":"反式3-(4'-甲氧苯基)缩水甘油酸甲酯","originalKeyword":"反式3-(4'-甲氧苯基)缩水甘油酸甲酯"},{"id":"8ba9553a-3c38-4b61-9fb6-ecff67dc0398","keyword":"硅藻土","originalKeyword":"硅藻土"},{"id":"458a53f2-54f6-4a52-8008-06b5c849be58","keyword":"环氧树脂","originalKeyword":"环氧树脂"},{"id":"0cf2cddc-ffae-44da-8689-138f215c6a60","keyword":"Eupergit C","originalKeyword":"Eupergit C"}],"language":"zh","publisherId":"cuihuaxb200702017","title":"粘质沙氏菌脂肪酶的固定化及催化拆分反式3-(4'-甲氧苯基)缩水甘油酸甲酯","volume":"28","year":"2007"}],"totalpage":179,"totalrecord":1783}