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ACSW-SGC相似材料单轴压裂声发射特性研究 被引量:2
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作者 赵鹏翔 李树刚 +1 位作者 高锦彪 肖鹏 《采矿与安全工程学报》 EI CSCD 北大核心 2017年第4期775-781,共7页
为了对相似材料的声发射特性进行研究,选取沙子作为骨料,水泥及淀粉作为胶结剂,水为溶剂来制作ACSW-SGC(Amylum淀粉,Cement水泥,Sand沙子,Water水,Solid固体,Gas气体,Couple耦合)相似材料,利用YYW-II及声发射测试仪对ACSW-SGC相似材料... 为了对相似材料的声发射特性进行研究,选取沙子作为骨料,水泥及淀粉作为胶结剂,水为溶剂来制作ACSW-SGC(Amylum淀粉,Cement水泥,Sand沙子,Water水,Solid固体,Gas气体,Couple耦合)相似材料,利用YYW-II及声发射测试仪对ACSW-SGC相似材料试件单轴压裂过程的声发射特性开展研究。结果表明:声发射能量释放与试件压缩过程中裂隙发育之间存在着密切的联系,经历了储存能量阶段、弹性能释放阶段、破裂能量释放阶段、二次破裂能释放阶段及能量平衡阶段;相似材料主裂隙产生在骨胶比由1∶10~1∶50过程中随淀粉含量的不断增大,其释放能量的平均变化率为5.85%~9.83%,而淀粉含量为0~50 g时随着骨胶比的不断变大,其释放能量的平均变化率为-5.92%^-3.78%;试件主裂隙产生释放的能量随着试件抗压强度的不断增大而变大,而且变化同步性较好。为深入开展采动覆岩破断与瓦斯运移的"固-气"耦合物理相似模拟实验提供了测试基础。 展开更多
关键词 acsw-SGC相似材料 力学参数 声发射特性 能量变化率
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A Review and Prospects on Collaborative Ontology Editing Tools 被引量:3
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作者 XIAN Guo-jian ZHAO Rui-xue 《Journal of Integrative Agriculture》 SCIE CSCD 2012年第5期731-740,共10页
Building ontology is a fundamental but also hard work. Collaborative ontology editing tools can make ontology development more efficiently. In this paper, the important features of collaborative ontology development w... Building ontology is a fundamental but also hard work. Collaborative ontology editing tools can make ontology development more efficiently. In this paper, the important features of collaborative ontology development were analyzed, and several tools such as AGROVOC Concept Server Workbench (ACSW), Collaborative Prot6g6 and WebProt6g6 were studied. Besides, some comparisons among them from several aspects were made and some prospects for the further improvement of these tools were given. Finally, we show it is a good way to build agricultural ontology with these tools collaboratively and simultaneously. 展开更多
关键词 collaborative ontology editing agricultural ontology acsw Collaborative Prot6g6 WebProt6g6
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