Results 11 to 20 of about 1,210,792 (120)
Auto-focus technology and its application based on image processing [PDF]
, 2009 Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
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, 2006 对水合物开采引起的地层变形和稳定性进行了初步分析.给出了设沿水平方向按一定间距保留原状土体不予开采而作为竖向支撑情况的结果.研究发现,最大沉陷发生于开采区中央,最大水平位移发生于上覆地层与含水合物地层交界面处.最大应力发生于开采区,即保留的土体中.因此保留一定含水合物土体不开采 ...
矫滨田, 鲁晓兵
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, 2003 在深入调查油田现场实际情况的基础上,对胜利油田采出水处理技术的现状做了详细的论述。针对现有采出水处理工艺技术尚存在一定的局限性和许多不足之处,提出了胜利油田今后应在加强工艺技术完善配套研究、加强电絮凝技术攻关研究、进行高效过滤技术攻关研究 ...
卢明昌
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, 2015 本发明公开一种绞吸式水合物开采装置及开采方法，其中，绞吸式水合物开采装置包括绞碎装置、软管、活塞式推进装置、吸力装置、输水管道、注海水系统和开采平台。本发明可以将较软的水合物沉积物、气和水的混合物吸入管道，然后在管道中实现热水掺混搅拌、水合物的分解、气体膨胀做功、沉积物分离的过程，最终通过开采平台将气体进行收集。本发明不需要机械在深水中开挖，使得开采范围扩大，因此具有较高的开采效率，能够实现软粘土质沉积物中水合物的大规模商业开采 ...
鲁晓兵, 张旭辉
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Policy &Internet, Volume 18, Issue 4, December 2026.ABSTRACT This paper examines the practices ordinary social media users employ to influence the content served to them by platform algorithms, and the relationship between these practices and levels of algorithmic literacy. Practices were documented across TikTok, Facebook, Instagram, Twitter (now X), YouTube and Reddit during 65 sessions, conducted as ...
Agata Stepnik, Joanne Gray
wiley +1 more source
Gongye shui chuli, 1985 目前我国油田采油大多采用二次采油法,即向地层注水,增加地层压力,提高出油率。而在采油过程中,油水同时采出,污水含量达60%以上。
徐寿昌, 许学文
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World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Agricultural development initiatives in sub‐Saharan Africa have emphasized improved crop varieties as a pathway to food security, resilience, and rural poverty reduction. However, empirical evidence often focuses narrowly on plot‐level outcomes and overlooks whole‐farm effects and the substantial heterogeneity in farmers' management practices,
Kodjo Kondo +4 more
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Gongye shui chuli, 2011 针对油田采出水的水质特点, 介绍了超滤膜技术及其应用特点以及超滤对采出水中悬浮物、油、细菌和有机物等污染物的去除特点和效果。讨论了一直制约着超滤膜技术处理油田采出水应用中的膜污染问题, 提出了其改进措施和相关切实可行的超滤膜污染清洗方法, 并指出了今后超滤技术在油田采出水处理中的发展研究方向。
高学理, 潘振江
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Gongye shui chuli, 1999 微生物诱导腐蚀（MIC）是油田采出水处理系统腐蚀的主要原因之一。为了减少MIC,一般采用投加杀菌剂的方法。二氧化氯是一种广泛用于循环冷却水和饮用水的高效杀菌剂，作者对二氧化氯用于油田采出水杀菌处理的可能性进行了研究探讨。实验证明，在采出水中还原物质含量较低时，二氧化氯对油田采出水有较好的杀菌效果 ...
王升坤
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World Water Policy, Volume 12, Issue 4, November 2026.ABSTRACT Biochemical oxygen demand (BOD) remains a core indicator of organic pollution in freshwater monitoring, but its role in water policy and practice is changing as water‐quality assessment moves toward predictive, integrative, and decision‐support approaches.
Isadora Favero Roque Cenci +5 more
wiley +1 more source