Results 31 to 40 of about 785,802 (144)
Zhejiang Daxue xuebao. Lixue ban, 2003 陆相断陷湖盆陡坡带发育各种成因的砂砾岩扇体,其储集性能具有极强的非均质性,已成为高成熟勘探区重要的勘探目标,钻前对有利沉积相带的预测以及钻后对储集性能的分析,已成为提高勘探开发效益的关键.针对胜利油田济阳坳陷陡坡带发育的各种成因的砂砾岩扇体,综合应用测井相、多种测井响应交会法、储层参数的测井定量解释、含油渗透层的测井判识等多种技术和方法,有效地对砂砾岩扇体的成因类型和储层岩性进行了判识,建立了孔隙度、渗透率等储层参数解释的理论模型并进行了定量解释,划分了有效渗透层,取得了明显的勘探开发效果 ...
LUXi-xue(吕希学) +3 more
doaj +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Early diagnosis of liver cancer demands high sensitivity, high specificity, convenience and real‐time monitoring capabilities. However, it encounters challenges such as low concentration of markers, numerous interfering factors, and limitations of detection technologies.
Changsheng Shi +10 more
wiley +1 more source
Guangtongxin yanjiu, 2010 海缆的路由探测和故障点定位技术是海缆维护工作中的关键技术之一。文章针对目前常用探测方法的缺点和不足,提出了被动式海缆路由探测技术。首先介绍了被动式海缆路由探测的系统原理,然后在此基础上提出了该系统的设计方案,最后,给出了该系统的有效仿真方法及仿真结果。仿真结果表明:电压衰落斜率越大,线圈与光缆间的距离越远。因此被动式海缆路由探测系统可有效地对海缆进行路由跟踪和定位。
谢慧, 严承华, 聂峰
doaj
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Recovering palladium (Pd) from low‐concentration metallurgical wastewater still poses significant challenges. In this study, triaminoguanidine hydrochloride was used as the key functional site, and three guanidine‐functionalized covalent organic frameworks (GCOFs) were successfully constructed by adjusting the substituents (–H, –OH, and –OCH3)
Jiaxing Xiong +9 more
wiley +1 more source
Gongye shui chuli, 2000 作者介绍了一种腐蚀检测技术。详细叙述了该技术在现场中的应用方法及应用情况。研制了一种电化学腐蚀在线监测探头,采用一条屏蔽线将安装在现场探头与CMB— 1 51 0B腐蚀仪接口相连,进行循环腐蚀状况监测,取得了与实际情况相吻合的结果。
郑立群 +5 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Ti3C2Tx MXene, with its exceptional electrical conductivity, mechanical flexibility, and processability, compatible with wearable and integrated systems, plays a crucial role in advancing flexible photodetectors for intelligent perception systems and bioinspired artificial vision.
Chu‐Qiao Hu +10 more
wiley +1 more source
, 1984 本文主要叙述红外线轴温探测器及其扫描方案;运行列车轮对和轴箱等的信息特征;轴温信号脉冲序列的能量谱,给出过热轴箱自动判别的方法和不同类型轴承的识别方式。介绍几种红外线探测轴温装置的原理方框图 ...
马玉林
core
Dianci bileiqi, 2013 低压电源SPD现有脱扣技术的缺点:基于极限状态的脱扣,脱扣不及时,不精确,不可再用,加工制造质量管理的复杂性,智能脱扣技术实现的难点:在线实时监测SPD性能的复杂性,通过TRIZ理论分析指出智能脱扣技术是低压SPD脱扣技术发展的必然方向,并探讨了智能脱扣技术的优点:精确、及时和可重用性;探讨了其实现方法:基于微弱信号检测技术实时在线检测压敏电阻的性能,通过程序控制判断SPD的性能实现精确脱扣。
胡喜, 胡勇坚
doaj
近邻宜居行星巡天计划: 利用空间天体测量法寻找下一个“地球”
Kongjian kexue xuebao近邻宜居行星巡天计划(Closeby Habitable Exoplanet Survey, CHES)采用空间微角秒级别的高精度天体测量技术, 普查太阳系近邻(10 pc内)约100颗FGK等类型恒星, 探测宜居带类地行星或超级地球; 详细普查宜居行星的数目、真实质量和三维轨道等信息, 这将是国际上首次近邻宜居带类地行星的空间探测任务.
季 江徽 +12 more
doaj +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT High‐capacity SiOx/graphite (SiO/G) anodes offer great potential for advancing lithium‐ion battery technology; however, their practical application is limited by low initial coulombic efficiency (ICE) and rapid capacity decay. These challenges primarily arise from unstable phase transitions and the formation of the solid electrolyte interphase
Wan‐Xing Zhang +14 more
wiley +1 more source