Feasibility of SNMP OID compression

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Title: Feasibility of SNMP OID compression

Authors: Hari TS Narayanan a, , Geetha Ilangovan a , Sumitra Narayanan b

Abstract: Simple network management protocol (SNMP) object identi?er (OID) compression can improve bandwidth usage and response time. The current literature includes several OID compres- sion algorithms to reduce redundancy in SNMP protocol data units (PDUs). The overhead of OID compression could outweigh the bene?ts it offers if its tradeoffs are not well understood. The main objective of this paper is to investigate the OID compression as a viable feature for SNMP libraries. This is done by adding an OID compression algorithm to Net-SNMP, which is one of the popular open source implementations of the SNMP framework. Change to image size, lines of code added, complexity of compression code, the effect of compression on response time, and testing effort required are the parameters presented to understand the viability of OID compression.   

Publish Year: 2013

Number of Published in: Information Sciences - Science Direct

Pages: 8

موضوع: فشرده سازی تصویر، فشرده سازی داده ها

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Interface-Based Object-Oriented Design with Mock Objects

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Title: Interface-Based Object-Oriented Design with Mock Objects

Authors: Nandigam, J.; Gudivada, V.N.; Hamou-Lhadj, A.; Yonglei Tao

Abstract: Interfaces are fundamental in object-oriented systems. One of the principles of reusable object-oriented design, according to Gamma et al., is program to an interface, not an implementation. Interface-based systems display three key characteristics - flexibility, extensibility, and pluggability. Designing with interfaces is therefore a better way of building object-oriented systems. Getting students in introductory software engineering and design courses to program to interfaces and develop interface-based systems is a challenge. This paper presents our experiences with the use of mock objects to promote interface-based design and effective unit testing in software engineering and design courses.   

Publish Year: 2009

Publisher: ITNG - IEEE

Number of Pages: 6

موضوع: طراحی و تحلیل شی گرا

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Solution blown nanofibrous membrane for microfiltration

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Title: Solution blown nanofibrous membrane for microfiltration

Authors: Xupin Zhuang a,b , Lei Shi a , Kaifei Jia a , Bowen Cheng b,n , Weimin Kang

Abstract: Nanofibrous membranes have been paid attention in microfiltration. Solution blowing process is a new nanofiber fabricating method with high productivity. In this study, polyvinylidene fiuoride (PVDF) nanofibrous mat was successfully solution blown using a multiorifices die. The fibers were mostly 60 280 nm in diameter and three-dimensional curly which resulted in a loose construction with high porosity of 95.8%. The nanofibrous mat was further hot-pressed to increase its integrality. The structure and microfiltration performance was evaluated. The results showed the crystallinity of the membranes increased, the porosity and pore size decreased after hot-pressing treatment. The hot-pressed membranes showed high retention ratio against microparticles and high pure water fiux which will help the solution blown membrane find application in high fiux microfiltration.   

Publish Year: 2013

Published in: Journal of Membrane Science - Science Direct

Number of Pages: 5

موضوع: فناوری نانو

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Traffic Information Based Power Saving Mechanism

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Title: Traffic Information Based Power Saving Mechanism

Authors: Ju No Han, Seong Gon Choi

Abstract: This paper proposes the standby power saving mechanism that the user can terminate home network appliance (Le. Personal Computer) power and standby power at the remote site. Generally, for the power management of the home appliance, it has to be put through the physical contact. In the proposed mechanism, the smartphone is offered the power on/off state information of the home network appliance on a real-time basis. The user can transmit the power-termination order to the home network appliance through the smartphone. If the home gateway receives the power-termination order from the smartphone, the power-termination order is sent to the home network appliance and the standby power is blocked. Its power and standby power can be blocked through the method to be proposed even through the user is not physically contacted with the home appliance. That is, the proposed mechanism gives convenience to the user in electric power management aspect. In addition, the power saving can be done, because reducing the unnecessary operation time and blocking the standby power of the home network appliance.   

Publish Year: 2013

Published in: ICACT - IEEE

Number of Pages: 4

موضوع: مهندسی برق – الکترونیک

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