微电阻率成像测井仪电扣刻度装置改进

微电阻率成像测井仪电扣刻度盒是通过模拟井下地层电阻率来检查仪器好坏的刻度装置。在地面检维修作业时,现有电扣刻度盒存在易损坏、精度不匹配、检测繁琐等问题;通过阐述现有电扣刻度盒存在的问题,提出了解决这些问题的改进方案;最后,发明了一种新型电扣刻度装置;此装置有效解决了现存的问题,使得微电阻率成像测井仪的刻度过程更加快速、精确。

富锂锰基锂离子电池电解液开发与优化

近年来锂离子电池被广泛的用于社会的方方面面,包括消费类锂离子电池、汽车动力电池、储能设备等。随着社会科技的进步,对锂离子电池的能量密度也逐步有了更高的要求,进一步提升电池能量密度成为了研究的热点和难点。富锂锰基正极材料具有高可逆容量,但目前传统电解液难以耐受其适用的4.6 V及以上高电压。本研究通过减少普通碳酸酯的含量,增加对电压具有更高耐受性的其他类型的有机物质,如氟代酯、氟醚类化合物,并通过优化添加剂进一步提升了电解液性能。扣电中高氟代溶剂电解液最优,M2电解液200 cls 93%。单片电池中全氟电解液最优,H1电解液循环172 cls容量保持80%。本研究确认氟代电解液在富锂正极电池中具有优良的性能,为富锂电池的商业化应用指明了未来开发方向。

浅析如何缩短小额支付电费处理时间

销账工作作为电费回收的末端,公司要求要加快销帐工作中小额支付工作进程,以更为科学、专业的方法管理营销电费资金,最终实现客户电子小额支付自动化、电子化,达到正确率100%。而小额支付电费处理工作却主要依靠人工操作,销账的工作效率处在较低水平。为了达到缩短小额支付电费处理时间的目的,我们积极与各大银行沟通,开通银行电子托收电费业务,最终实现实时委托、快速销账。此项研究的运用,简化工作,降低工作强度,工作量降低了50%-80%。

Comparison of pre- and post-operational multifocal electroretinograms of retinal detachment

OBJECTIVES: To explore the changes of multifocal electroretinograms (mfERG) before and after retinal detachment surgery and to evaluate its clinical significance. METHODS: Twenty-three patients (23 eyes) with rhegmatogenous retinal detachment underwent mfERG before and after surgery. The latencies and average response densities of N(1)-wave and P(1)-wave of mfERGs in detached areas, attached areas, fovea and the entire tested area were compared before and after surgery. RESULTS: Preoperatively, the average response densities of N(1)-wave and P(1)-wave in the detached area were significantly smaller than those in attached areas (t = 3.68, t = 4.26, P 0.05). CONCLUSIONS: The mfERG is a useful tool to evaluate the recovery of posterior retinal function after retinal detachment surgery. The response density is a more sensitive index than latency to evaluate retinal function of retinal detachment.

Comparison of pre-and post-operational multifocal electroretinograms of retinal detachment

s To explore the changes of multifocal electroretinograms (mfERG) before and after retinal detachment surgery and to evaluate its clinical significance Methods Twenty three patients (23 eyes) with rhegmatogenous retinal detachment underwent mfERG before and after surgery The latencies and average response densities of N 1 wave and P 1 wave of mfERGs in detached areas, attached areas, fovea and the entire tested area were compared before and after surgery Results Preoperatively, the average response densities of N 1 wave and P 1 wave in the detached area were significantly smaller than those in attached areas ( t =3 68, t =4 26, P 【0 01), and the latencies of N 1 wave and P 1 wave in detached areas were significantly longer than those in attached areas ( t =3 07, t =3 89, P 【0 01) Postoperatively, the average response densities of N 1 wave and P 1 wave in detached areas, fovea and the entire tested area increased, and there were significant differences pre and postoperatively ( P 【0 05) However, the latencies of N 1 wave and P 1 wave before and after surgery showed no significant differences ( P 】0 05) Conclusions The mfERG is a useful tool to evaluate the recovery of posterior retinal function after retinal detachment surgery The response density is a more sensitive index than latency to evaluate retinal function of retinal detechment