Smartphone processor architecture, operations, and functions: current state-of-the-art and future outlook: energy performance trade-off

Ginny,; Kumar, Chiranjeev; Naik, Kshirasagar

doi:10.1007/s11227-020-03312-z

Cited by 6 publications

(3 citation statements)

References 218 publications

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“…With the continuous increase in the performance and miniaturization of advanced electronic devices, generated heat has become a major problem that degrades the performance and reduces the lifetime of devices [ 1 ]. Thermal interface materials (TIMs) are crucial components that transfer heat from a heat source to a heat sink, ultimately improving the lifespan and safety of electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Thermal Pad Composites Using Densely Aligned MgO Nanowires

et al. 2023

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Owing to the increasing demand for the miniaturization and integration of electronic devices, thermal interface materials (TIMs) are crucial components for removing heat and improving the lifetime and safety of electronic devices. Among these, thermal pads are reusable alternatives to thermal paste-type TIMs; however, conventional thermal pads comprise a homogeneous polymer with low thermal conductivity. Composite materials of thermally conducting fillers and polymer matrices are considered suitable alternatives to high-performance pad materials owing to their controllable thermal properties. However, they degrade the thermal performance of the filler materials at high loading ratios via aggregation. In this study, we propose novel nanocomposites using densely aligned MgO nanowire fillers and polydimethylsiloxane (PDMS) matrices. The developed nanocomposites ensured the enhanced thermal conducting properties, while maintaining mechanical flexibility. The three-step preparation process involves the (i) fabrication of the MgO structure using a freeze dryer; (ii) compression of the MgO structure; and (iii) the infiltration of PDMS in the structure. The resulting aligned composites exhibited a superior thermal conductivity (approximately 1.18 W m−1K−1) to that of pure PDMS and composites with the same filler ratios of randomly distributed MgO fillers. Additionally, the MgO/PDMS composites exhibited adequate electrical insulating properties, with a room-temperature resistivity of 7.92 × 1015 Ω∙cm.

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Section: Introductionmentioning

confidence: 99%

Enhanced Thermal Pad Composites Using Densely Aligned MgO Nanowires

et al. 2023

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“…Decentralized information flow control (DIFC) [8] addresses the weaknesses of earlier approaches to the protection of secrecy and integrity in an operating system containing applications with potential exploits or thirdparty components [9], even in situations of mutual distrust [7]. DIFC allows processes to control the flow of their information without imposing the rigid constraints of a traditional multilevel security system [10].…”

Section: Introductionmentioning

confidence: 99%

A Noninterference Model for Mobile OS Information Flow Control and Its Policy Verification

Yuan

Yang

et al. 2021

Security and Communication Networks

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Mobile operating systems such as Android are facing serious security risk. First, they have a large number of users and store a large number of users’ private data, which have become major targets of network attack; second, their openness leads to high security risks; third, their coarse-grained static permission control mechanism leads to a large number of privacy leaks. Recent decentralized information flow control (DIFC) operating systems such as Asbestos, HiStar, and Flume dynamically adjust the label of each process. Asbestos contains inherent covert channels due to this implicit label adjustment. The others close these covert channels through the use of explicit label change, but this impedes communication and increases performance overhead. We present an enhanced implicit label change model (EILCM) for mobile operating systems that can close the known covert channel in these models with implicit label change and supports dynamic constraints on tags for separation of duty. We also formally analyze the reasons why EILCM can close the known covert channels and prove that abstract EILCM systems have the security property of noninterference with declassification by virtue of the model checker tool FDR. We also prove that the problem of EILCM policy verification is NP-complete and propose a backtrack-based search algorithm to solve the problem. Experiments are presented to show that the algorithm is effective.

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“…Por otro lado, a diferencia de la arquitectura x86, los procesadores ARM fueron concebidos teniendo en cuenta como pilar fundamental la eficiencia energética (Cristea et al, 2019;Pramanik et al, 2019), relegando en parte capacidad de cálculo (Ginny et al, 2020;Bhat et al, 2019) ya que estaban orientados a ser utilizados en móviles y microdispositivos alimentados mayormente por baterías. Estos equipos disponen de grandes lapsos de inactividad durante sus periodos de recarga, por lo que, si su capacidad se maneja adecuadamente, pueden ser reutilizados para convertirse en centros de datos masivos, consumiendo solo una fracción de la energía y otorgar una potencia informática similar a la de sus contrapartes (Gedawy et al, 2020;Barua y Mondal, 2019;Lavoie y Hendren, 2019;Hirsch et al, 2018;Schaffner et al, 2018;Mach y Becvar, 2017) En este trabajo, se tomó el sistema desarrollado (Petrocelli et al, 2019;) y se migró a una arquitectura de microservicios, lo que permitió que sus funciones fueran fragmentadas en servicios más pequeños y con responsabilidades mejor definidas (Hassan et al, 2020).…”

Section: Introductionunclassified

Plataforma Colaborativa, Elástica, De Bajo Costo Y Consumo Basada en Recursos De La Nube, Contenedores Y Móviles Para HPC

2020

IADIS Ibero American Conferences: WWW/Internet and Applied Computing 2020

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Smartphone processor architecture, operations, and functions: current state-of-the-art and future outlook: energy performance trade-off

Cited by 6 publications

References 218 publications

Enhanced Thermal Pad Composites Using Densely Aligned MgO Nanowires

Enhanced Thermal Pad Composites Using Densely Aligned MgO Nanowires

A Noninterference Model for Mobile OS Information Flow Control and Its Policy Verification

Plataforma Colaborativa, Elástica, De Bajo Costo Y Consumo Basada en Recursos De La Nube, Contenedores Y Móviles Para HPC

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