摘要：为了降低多值逻辑电路的功耗,采用开关级设计技术设计一种新型三值绝热计数器.该方案以电路三要素理论为指导,并通过对多值计数器结构及工作原理的分析,分别推导出构成三值绝热计数器的三值绝热触发器、三值绝热正循环门、三值绝热进位电路的开关级函数表达式,利用具有不同阈值的NMOS管和交叉存贮型结构实现相应的电路.将所设计的计数器进行PSPICE模拟,结果表明,三值绝热计数器具有正确的逻辑功能及明显的低功耗特性.

摘要：通过对多值逻辑、绝热电路和三值触发器工作原理及结构的研究,提出一种新颖的三值绝热JKL触发器的设计方案.该方案首先以电路三要素理论为指导,推导出三值绝热JKL触发器的元件级函数式,采用不同阈值的MOS管实现相应的电路结构.然后结合三值绝热文字电路,应用三值绝热JKL触发器进一步设计绝热九进制异步计数器.最后,HSPICE模拟结果表明,所设计电路具有正确的逻辑功能,与传统三值JKL触发器和九进制异步计数器相比,节省能耗均在75%以上.

摘要：Based on multi-valued logic,adiabatic circuits and the structure of ternary static random access memory （SRAM）,a design scheme of a novel ternary clocked adiabatic SRAM is *** scheme adopts bootstrapped NMOS transistors,and an address decoder,a storage cell and a sense amplifier are charged and discharged in the adiabatic way,so the charges stored in the large switch capacitance of word lines,bit lines and the address decoder can be effectively restored to achieve energy recovery during reading and writing of ternary *** PSPICE simulation results indicate that the ternary clocked adiabatic SRAM has a correct logic function and low power *** with ternary conventional SRAM,the average power consumption of the ternary adiabatic SRAM saves up to 68%in the same conditions.

摘要：By research on the switch-signal theory for multiple-valued logic circuits, the theory of three essential elements and the principle of adiabatic circuits, a design scheme for a double power clock ternary clocked transmission gate adiabatic logic （DTCTGAL） circuit is presented. The energy injection and recovery can be conducted by the bootstrapped NMOSFET, which makes the circuit maintain the characteristics of energy recovery as well as multiple-valued input and output. An XOR/XNOR circuit based on DTCTGAL is also presented using this design scheme. Finally, using the parameters of a TSMC 0.25μm CMOS device, PSPICE simulation results indicate that the proposed circuits have correct logic and significant low power characteristics.

摘要：以早熟高产玉米新品种牡单13为试验材料,采用双因素裂区设计,探索其适宜的种植密度和施肥量,旨在挖掘牡单13的高产潜力。结果表明:在密度为67 500株/hm2、肥力水平为400kg/hm2时,A2B3小区产量最高。

摘要：近年来，医学专业英语授课方法多沿用老师台上讲(翻译课文)，学生台下听，课堂以教师为中心，学生被动接受书本知识。师生互动少，情境对话少，缺乏语言环境的支持，结果是选课的学生多，听课的少。为扭转这一局面，承担99级本科护生专业英语教学后，分析了外语教学中存在的问题，明确了改革的方法和手段，教师努力为学生创造参与课堂语言交际活动的机会，

摘要：2003年8月,我科自行设计和建立了住院患者费用管理医护联系本,应用1年来收到了很好的效果,现介绍如下。