文章旨在探索建筑信息模型(BIM)技术在城市商业空间运维中的应用潜力,重点通过概念验证(Proof of Concept,POC)方法,以商业公寓为案例展开深入分析。随着城市化进程加快,商业空间的复杂性与多样性日益提升,提高设计、施工和运营管理效...文章旨在探索建筑信息模型(BIM)技术在城市商业空间运维中的应用潜力,重点通过概念验证(Proof of Concept,POC)方法,以商业公寓为案例展开深入分析。随着城市化进程加快,商业空间的复杂性与多样性日益提升,提高设计、施工和运营管理效率成为关键问题。通过构建BIM的POC模型,验证了其在商业公寓项目中对多专业协同、设计优化、施工管理及后期运维的支撑效果。研究结果表明,BIM技术可显著提升项目各阶段效率,尤其在减少设计冲突、提升资源利用率及实现精准管理方面优势突出。通过该案例分析,以期为BIM技术在城市商业空间的进一步推广应用提供理论支持与实践参考。展开更多
为有效解决信息产品实际应用过程中时常出现的程序错乱、功能性匹配不佳等问题,相关技术人员要组织开展概念验证(proof of concept,PoC)测试工作,在测试过程中明确信息系统实际应用程序,并制定更合理的系统优化创新策略,真正发挥出信创...为有效解决信息产品实际应用过程中时常出现的程序错乱、功能性匹配不佳等问题,相关技术人员要组织开展概念验证(proof of concept,PoC)测试工作,在测试过程中明确信息系统实际应用程序,并制定更合理的系统优化创新策略,真正发挥出信创产品的良好价值,为我国信创事业的不断改进和创新提供动力。深入探讨PoC测试在制定信创改造升级策略中的应用,分析信创改造升级的风险,并提出应对策略,以期为相关人员提供参考。展开更多
Irregular seismic data causes problems with multi-trace processing algorithms and degrades processing quality. We introduce the Projection onto Convex Sets （POCS） based image restoration method into the seismic data...Irregular seismic data causes problems with multi-trace processing algorithms and degrades processing quality. We introduce the Projection onto Convex Sets （POCS） based image restoration method into the seismic data reconstruction field to interpolate irregularly missing traces. For entire dead traces, we transfer the POCS iteration reconstruction process from the time to frequency domain to save computational cost because forward and reverse Fourier time transforms are not needed. In each iteration, the selection threshold parameter is important for reconstruction efficiency. In this paper, we designed two types of threshold models to reconstruct irregularly missing seismic data. The experimental results show that an exponential threshold can greatly reduce iterations and improve reconstruction efficiency compared to a linear threshold for the same reconstruction result. We also analyze the anti- noise and anti-alias ability of the POCS reconstruction method. Finally, theoretical model tests and real data examples indicate that the proposed method is efficient and applicable.展开更多
文摘文章旨在探索建筑信息模型(BIM)技术在城市商业空间运维中的应用潜力,重点通过概念验证(Proof of Concept,POC)方法,以商业公寓为案例展开深入分析。随着城市化进程加快,商业空间的复杂性与多样性日益提升,提高设计、施工和运营管理效率成为关键问题。通过构建BIM的POC模型,验证了其在商业公寓项目中对多专业协同、设计优化、施工管理及后期运维的支撑效果。研究结果表明,BIM技术可显著提升项目各阶段效率,尤其在减少设计冲突、提升资源利用率及实现精准管理方面优势突出。通过该案例分析,以期为BIM技术在城市商业空间的进一步推广应用提供理论支持与实践参考。
文摘为有效解决信息产品实际应用过程中时常出现的程序错乱、功能性匹配不佳等问题,相关技术人员要组织开展概念验证(proof of concept,PoC)测试工作,在测试过程中明确信息系统实际应用程序,并制定更合理的系统优化创新策略,真正发挥出信创产品的良好价值,为我国信创事业的不断改进和创新提供动力。深入探讨PoC测试在制定信创改造升级策略中的应用,分析信创改造升级的风险,并提出应对策略,以期为相关人员提供参考。
基金financially supported by National 863 Program (Grants No.2006AA 09A 102-09)National Science and Technology of Major Projects ( Grants No.2008ZX0 5025-001-001)
文摘Irregular seismic data causes problems with multi-trace processing algorithms and degrades processing quality. We introduce the Projection onto Convex Sets （POCS） based image restoration method into the seismic data reconstruction field to interpolate irregularly missing traces. For entire dead traces, we transfer the POCS iteration reconstruction process from the time to frequency domain to save computational cost because forward and reverse Fourier time transforms are not needed. In each iteration, the selection threshold parameter is important for reconstruction efficiency. In this paper, we designed two types of threshold models to reconstruct irregularly missing seismic data. The experimental results show that an exponential threshold can greatly reduce iterations and improve reconstruction efficiency compared to a linear threshold for the same reconstruction result. We also analyze the anti- noise and anti-alias ability of the POCS reconstruction method. Finally, theoretical model tests and real data examples indicate that the proposed method is efficient and applicable.
