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320排CTDSA技术在脑血管病变中的应用价值 被引量:7
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作者 田龙海 陈志辉 刘璇辉 《中国医疗设备》 2012年第10期178-179,45,共3页
目的探讨320排CTDSA(计算机断层扫描数字血管减影造影术)技术在脑血管病变中的应用价值。方法利用320排CT对90例疑似脑血管病例进行头颅动态容积增强扫描。结果所有病例均获取良好的平扫容积图像、动态CTA图像及全脑灌注图像。90例中发... 目的探讨320排CTDSA(计算机断层扫描数字血管减影造影术)技术在脑血管病变中的应用价值。方法利用320排CT对90例疑似脑血管病例进行头颅动态容积增强扫描。结果所有病例均获取良好的平扫容积图像、动态CTA图像及全脑灌注图像。90例中发现病变75例,包括动脉狭窄或闭塞15例,动脉瘤40例;脑膜瘤4例;三叉神经鞘瘤2例;动静脉畸形(AVM)10例;静脉窦血栓4例;正常的15例。结论 320排CTDSA技术对脑血管病变的诊断及随访具有极高的临床价值。 展开更多
关键词 CT ctdsa 血管成像 颅内动静脉
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Cache Memory Design for Single Bit Architecture with Different Sense Amplifiers
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作者 Reeya Agrawal Anjan Kumar +3 位作者 Salman A.AlQahtani Mashael Maashi Osamah Ibrahim Khalaf Theyazn H.H.Aldhyani 《Computers, Materials & Continua》 SCIE EI 2022年第11期2313-2331,共19页
Most modern microprocessors have one or two levels of on-chip caches to make things run faster,but this is not always the case.Most of the time,these caches are made of static random access memory cells.They take up a... Most modern microprocessors have one or two levels of on-chip caches to make things run faster,but this is not always the case.Most of the time,these caches are made of static random access memory cells.They take up a lot of space on the chip and use a lot of electricity.A lot of the time,low power is more important than several aspects.This is true for phones and tablets.Cache memory design for single bit architecture consists of six transistors static random access memory cell,a circuit of write driver,and sense amplifiers(such as voltage differential sense amplifier,current differential sense amplifier,charge transfer differential sense amplifier,voltage latch sense amplifier,and current latch sense amplifier,all of which are compared on different resistance values in terms of a number of transistors,delay in sensing and consumption of power.The conclusion arises that single bit six transistor static random access memory cell voltage differential sense amplifier architecture consumes 11.34μW of power which shows that power is reduced up to 83%,77.75%reduction in the case of the current differential sense amplifier,39.62%in case of charge transfer differential sense amplifier and 50%in case of voltage latch sense amplifier when compared to existing latch sense amplifier architecture.Furthermore,power reduction techniques are applied over different blocks of cache memory architecture to optimize energy.The single-bit six transistors static random access memory cell with forced tack technique and voltage differential sense amplifier with dual sleep technique consumes 8.078μW of power,i.e.,reduce 28%more power that makes single bit six transistor static random access memory cell with forced tack technique and voltage differential sense amplifier with dual sleep technique more energy efficient. 展开更多
关键词 Current differential sense amplifier(CDSA) voltage differential sense amplifier(VDSA) voltage latch sense amplifier(VLSA) current latch sense amplifier(CLSA) charge-transfer differential sense amplifier(ctdsa) new emerging technologies
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