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确定服务时间预约系统联合能力计划与调度方法 被引量:3
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作者 阎崇钧 唐加福 +1 位作者 姜博文 刘锋 《中国管理科学》 CSSCI 北大核心 2015年第S1期15-22,共8页
文章以医院门诊预约服务为研究背景,以系统收益与患者候诊成本、科室的空闲成本和加班成本的差作为目标效用,建立带有爽约患者的医疗预约系统联合计划与调度问题模型。当候诊成本与加班成本为单调非减的凸函数时,本文证明目标函数是多... 文章以医院门诊预约服务为研究背景,以系统收益与患者候诊成本、科室的空闲成本和加班成本的差作为目标效用,建立带有爽约患者的医疗预约系统联合计划与调度问题模型。当候诊成本与加班成本为单调非减的凸函数时,本文证明目标函数是多模函数,并基于多模函数的性质,给出求解该类问题最优解的精确算法。数值实验显示最优调度策略超额预定首个时段,且患者爽约概率对最优调度方案中超额预定比例、目标效用值、医院空闲成本、加班成本以及患者的候诊成本有显著影响,研究结果对于医院预约系统的设计和评估有指导意义。 展开更多
关键词 医疗运作管理 预约调度 多模函数
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Secure and Energy Efficient Design of Multi-Modular Exponential Techniques for Public-Key Cryptosystem
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作者 Utkarsh Tiwari Satyanarayana Vollala +2 位作者 N.Ramasubramanian B.Sameedha Begum G.Lakshminarayanan 《Journal of Communications and Information Networks》 EI CSCD 2022年第3期309-323,共15页
The present paper proposes a secure design of the energy-efficient multi-modular exponential techniques that use store and reward method and store and forward method.Computation of the multi-modular exponentiation can... The present paper proposes a secure design of the energy-efficient multi-modular exponential techniques that use store and reward method and store and forward method.Computation of the multi-modular exponentiation can be performed by three novel algorithms:store and reward,store and forward 1-bit(SFW1),and store and forward 2-bit(SFW2).Hardware realizations of the proposed algorithms are analyzed in terms of throughput and energy.The experimental results show the proposed algorithms SFW1 and SFW2 increase the throughput by orders of 3.98% and 4.82%,reducing the power by 5.32% and 6.15% and saving the energy in the order of 3.95% and 4.75%,respectively.The proposed techniques can prevent possible side-channel attacks and timing attacks as a consequence of an inbuilt confusion mechanism.Xilinx Vivado-21 on Virtex-7 evaluation board and integrated computer application for recognizing user services(ICARUS)Verilog simulation and synthesis tools are used for field programmable gate array(FPGA)for hardware realization.The hardware compatibility of proposed algorithms has also been checked using Cadence for application specific integrated circuit(ASIC). 展开更多
关键词 public-key cryptography RSA multimodular exponentiation modular multiplication Montgomery multiplication
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