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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 专题：兰州理工大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Global Progress in Oil and Gas Well Research Using Bibliometric Analysis Based on VOSviewer and CiteSpace 期刊论文 ENERGIES, 2022, 卷号: 15, 期号: 15 作者:  Zhang, Pan;  Du, Yongjun;  Han, Sijie;  Qiu, Qingan 收藏  |  浏览/下载：23/0  |  提交时间：2022/09/22 oil and gas well research  web of science  VOSviewer and CiteSpace  exponential growth  hotspots  research frontiers  technology trends   Optimum Post-Warranty Maintenance Policies for Products with Random Working Cycles 期刊论文 MATHEMATICS, 2022, 卷号: 10, 期号: 10 作者:  Du, Yongjun;  Shang, Lijun;  Qiu, Qingan;  Yang, Li 收藏  |  浏览/下载：6/0  |  提交时间：2022/06/21 product  random working cycle  renewing free-replacement warranty  two-dimensional renewing free-replacement warranty  post-warranty maintenance  cost rate   Post-Warranty Replacement Models for the Product under a Hybrid Warranty 期刊论文 MATHEMATICS, 2022, 卷号: 10, 期号: 10 作者:  Shang, Lijun;  Shang, Guojun;  Du, Yongjun;  Qiu, Qingan;  Yang, Li 收藏  |  浏览/下载：12/0  |  提交时间：2022/06/21 hybrid warranty  random working cycle  post-warranty replacement  depreciation expense  cost rate   Random replacement policies to sustain the post-warranty reliability 期刊论文 Journal of Quality in Maintenance Engineering, 2022 作者:  Shang, Lijun;  Qiu, Qingan;  C., Wu;  Y., Du 收藏  |  浏览/下载：31/0  |  提交时间：2022/07/20 Cost accounting  Cost benefit analysis  Costs  Maintenance  Product design  Cost rates  Post-warranty reliability  Product reliability  Random replacements  Reliability performance  Replacement first  Replacement last  Warranty  Warranty period  Working cycle   A random maintenance last model with preventive maintenance for the product under a random warranty 期刊论文 EKSPLOATACJA I NIEZAWODNOSC-MAINTENANCE AND RELIABILITY, 2022, 卷号: 24, 期号: 3, 页码: 544-553 作者:  Shang, Lijun;  Zou, Anquan;  Qiu, Qingan;  Du, Yongjun 收藏  |  浏览/下载：11/0  |  提交时间：2022/07/19 random RPRW  refund  replacement last  PM  failure frequency