期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
“实物量法”——国际社会编制工程造价的惯例 被引量:5
1
作者 朱光明 钱善扬 《中国建设信息》 2002年第258期55-57,共3页
一、“单位估价法”与“实物量法”目前世界上通行的预测建设工程造价的基本方法大致有两种:“单价估价法”和“实物量法”。我国从五十年代开始引进了苏联的定额及概预算制度,五十多年来,几经沿革,工程定额繁多,既有国家统一定额,行业... 一、“单位估价法”与“实物量法”目前世界上通行的预测建设工程造价的基本方法大致有两种:“单价估价法”和“实物量法”。我国从五十年代开始引进了苏联的定额及概预算制度,五十多年来,几经沿革,工程定额繁多,既有国家统一定额,行业定额又有地方定额,既有投资估算指标,又有概算定额,预算定额。因而采用“单位估价法”编制工程造价已是轻车熟路,十分方便。 展开更多
关键词 工程造价 “实物量法” 建筑市场 工程成本
下载PDF
Parity Symmetry and Parity Breaking in the Quantum Rabi Model with Addition of Ising Interaction
2
作者 王琼 贺志 姚春梅 《Communications in Theoretical Physics》 SCIE CAS CSCD 2015年第4期510-514,共5页
We explore the possibility to generate new parity symmetry in the quantum Rabi model after a bias is introduced. In contrast to a mathematical treatment in a previous publication [J. Phys. A 46(2013) 265302], we consi... We explore the possibility to generate new parity symmetry in the quantum Rabi model after a bias is introduced. In contrast to a mathematical treatment in a previous publication [J. Phys. A 46(2013) 265302], we consider a physically realistic method by involving an additional spin into the quantum Rabi model to couple with the original spin by an Ising interaction, and then the parity symmetry is broken as well as the scaling behavior of the ground state by introducing a bias. The rule can be found that the parity symmetry is broken by introducing a bias and then restored by adding new degrees of freedom. Experimental feasibility of realizing the models under discussion is investigated. 展开更多
关键词 parity symmetry parity breaking Rabi model scaling behavior
原文传递
Calorimetry is not color-blind. Molecular insights on association processes in surfactant-polymer mixtures derived from calorimetric experiments
3
作者 LOH Watson BRINATTI Cesar 《Science China Chemistry》 SCIE EI CAS 2011年第12期2024-2027,共4页
This comment will review and discuss recent results obtained with the use of calorimetry in assessing molecular information from complex phenomena such as association in surfactant/polymer mixtures. These examples wer... This comment will review and discuss recent results obtained with the use of calorimetry in assessing molecular information from complex phenomena such as association in surfactant/polymer mixtures. These examples were selected to support the view that it is possible to ally the great sensitivity of modem calorimeters with carefully planned experiments and, sometimes, ancillary techniques in order to derive detailed information on molecular interactions. 展开更多
关键词 CALORIMETRY polymer-surfatant interaction SELF-ASSEMBLY
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部