http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Asmat Nawaz,Rehana Sharif,이희우,Pramod K. Singh 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.33 No.-
Electrode and electrolytes are always playing a key role in developing good efficient devices. This paperreports the synthesis, characterization and application of low viscosity ionic liquid (1-ethyl 3-methylimidazolium dicyanamide) incorporated into polymer matrix (PVDF–HFP). The samples werecharacterized using various experimental tools. Complex impedance spectroscopy shows thatconductivity of polymer host increases with increasing ionic liquid (IL) concentration attains maximaand then decreases. Optical microscopy and scanning electron microscopy (SEM) reveals the reduction ofcrystalline matrix of polymer host by adding IL. The primarily fabricated devices using maximumconductivity film affirms that this material is promising candidate for dye sensitized solar cell (DSSC) andsupercapacitor application.
Software architecture and algorithm for reliable RPC for geo-distributed mobile computing systems
Khan, Asmat Ullah,Bagchi, Susmit North-Holland 2018 Future generations computer systems Vol.86 No.-
<P><B>Abstract</B></P> <P>Remote Procedure Call (RPC) is a computing as well as communication model for distributed processes to execute client routines on remote servers in the distributed systems. Due to the evolution of geo-distributed mobile cloud computing systems, mobile devices are exposed to frequent disconnection due to limited battery lifetime, processing capacity and network bandwidth while roaming globally. The existing standard RPC and mobile RPC frameworks are not completely suitable for applications in geo-distributed mobile cloud computing. This paper proposes a novel software architecture and associated algorithms for realizing reliable RPC under global mobility of clients. The stateful server chaining and multiple authentication primitives are employed in the proposed design to achieve security as well as location transparency. The software architecture is implemented on heterogeneous testbed and evaluated with promising results. The heterogeneity of mobile cloud platform is considered in the design by employing specific XDR format enhancing portability. A detailed comparative analysis of the proposed design is included in the paper.</P> <P><B>Highlights</B></P> <P> <UL> <LI> GMCC-RPC: Reliable mobile RPC for geo-distributed systems. </LI> <LI> Software architecture for mobile and reliable RPC for geo-distributed systems. </LI> <LI> Mobile and Reliable RPC using server chains in geo-distributed systems. </LI> </UL> </P>
Energy Recycling Voltage Scaler Based on Reconfigurable Capacitive Array
Syed Asmat Ali Shah,A.N. Ragheb,HyungWon Kim(김형원) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6
This paper introduces a novel architecture of voltage scaler based on a reconfigurable capacitive array. While its reconfigurable structure allows it to scale the output voltage to any target level, its energy recycling process permits the voltage scaler to supply the voltage even after the input voltage is turned off. This architecture stores the energy in the capacitor array during the voltage scaling stage, then it reconfigures these charges step-wise to boost the lost voltage level during the energy recycling stage. Using the proposed architecture, an example voltage scaler was implemented using 65 nm CMOS process, which generates an output voltage of a range 500 mV to 1.16 V from an input voltage of 500 mV. Simulations were conducted with a 32-bit adder circuit as a load, which showed a reduction in energy consumption by 45.8% compared to a conventional converter.
Low-Power Voltage Converter Using Energy Recycling Capacitor Array
Shah, Syed Asmat Ali,Ragheb, A.N.,Kim, HyungWon The Korea Institute of Information and Commucation 2017 Journal of information and communication convergen Vol.15 No.1
This paper presents a low-power voltage converter based on a reconfigurable capacitor array. Its energy recycling capacitor array stores the energy during a charge stage and supplies the voltage during an energy recycle stage even after the power source is disconnected. The converter reconfigures the capacitor array step-wise to boost the lost voltage level during the energy recycle stage. Its energy saving is particularly effective when most of the energy remaining in the charge capacitors is wasted by the leakage current during a longer sleep period. Simulations have been conducted using a voltage source of 500 mV to supply a $V_{DD}$ of around 800 mV to a load circuit consisting of four 32-bit adders in a 65-nm CMOS process. Results demonstrate energy recycling efficiency of 85.86% and overall energy saving of 40.14% compared to a conventional converter, when the load circuit is shortly active followed by a long sleep period.
A Low Power Mixed Signal Convolutional Neural Network for Deep Learning SoC
말릭 수메르,Syed Asmat Ali Shah,김형원 한국과학기술원 반도체설계교육센터 2023 IDEC Journal of Integrated Circuits and Systems Vol.9 No.3
Convolutional Neural Networks (CNNs) are getting fame due to their simpler design and higher performance. However, CNNs suffer from a large area and power consumption constraints. The multiply-and-accumulate (MAC) unit, which performs the convolution operation inside a CNN, consumes a significant amount of power consumption. In this study, we propose a mixed-signal approach for implementing analog MAC unit that can replace the digital MAC unit in CNNs. The Analog MAC unit architecture is constituted from binary weighted current steering digital-to-analog (DAC) circuit and capacitors. A digital parallel interface is designed to provide input image and filter values to the MAC unit. To realize a complete CNN model a low-power analog-to-digital (ADC) is then employed at the output to convert the final value back to a digital value. When a 3×3 convolution is performed, the analog MAC unit offers a 10.7% reduction in area and a 59.2% reduction in power consumption compared to its fully digital counterparts.
Seed priming with selenium improves the maize performance
Sardar Alam Cheema,Asmat Ulllah,Muhammad Farooq 단국대학교 국제농업협력연구소 2012 단국대학교 국제농업협력연구소 학술대회 Vol.2012 No.1
A field experiment was conducted to study the effect of selenium priming on growth and productivity of maize at Agronomy Research Area, University of Agriculture, Faisalabad. Maize seeds were primed with different concentrations of selenium (0, 5, 25, 50 and 100 JlM) while untreated seeds were taken as control. Results showed that seed priming with all levels of selenium improved the germination parameters, growth and yield of maize. Seed priming with 50 JlM of selenium recorded maximum grain yield (2.35 t ha- 1) while minimum (1.66 t ha-1) grain yield was observed in case of untreated seeds (control). Further research should be carried out to find out mechanisms of growth and yield improvement of maize as a result of seed priming with selenium.