During a software project's lifetime, the software goes through many changes, as components are added, removed and modified to fix bugs and add new features. This paper is intended as a lightweight introduction to some of the issues arising from an `archaeological' investigation of software evolution. We use our own work to look at some of the challenges faced, techniques used, findings obtained, and lessons learnt when measuring and visualising the historical changes that happen during the evolution of software

Rusllim Mohammad, M.

Sharkh, S.M.

Walsh, F.C.

English

Crossref

Redox flow batteries for hybrid electric vehicles: Progress and challenges

Wermelinger, Michel

Yu, Yijun

Open Research Online

Some issues in the 'archaeology' of software evolution

Electric vehicles have been the focus of muchresearch over the last two decades as the world has sought improved energy utilization and reduced emissions. However, the lengthy charging time, modest range and relatively sluggish
performance of batteries have restricted the commercialization of electric vehicles. Hybrid propulsion can overcome most of these shortcomings, with improved energy efficiency and reduced emissions compared to conventional internal combustion engine vehicles (ICEVs). Nonetheless, energy storage issues are still critical. Redox flow batteries (RFB), which continue to mature, have the potential to be fast recharging contenders. Refuelling is possible by rapid pumping of the reactants into the batteries’ tanks. Another feature of RFBs that makes them attractive for EV applications is the separation, in terms of physical location and sizing, of the energy and power components. This adds a
degree of flexibility that allows the optimization of the power and
energy components for a specific vehicle configuration and
performance. This paper concisely reviews RFBs and assesses their potential as a power source for hybrid electric vehicles. Experimental performance data from a 100 cm2 laboratory, unit cell, allvanadium redox flow battery (V-RFB) are presented. Based on these results, the size and performance of a V-RFB, suitable for a series hybrid electric vehicle, are estimated and compared with lithium-ion and conventional lead-acid alternatives. The results suggest that V-RFB performance could be improved to match that of the conventional lead-acid, with the added advantage of very rapid rechargin

Southampton (e-Prints Soton)

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A dynamic performance model for redox-flow batteries involving soluble species,&quot;

A novel flow battery - a lead-acid battery based on an electrolyte with soluble lead (II). Part VI. studies of the lead dioxide positive electrode,&quot;

A retail and lifecycle cost analysis of hybrid electric vehicles,&quot;

All Vanadium Redox Battery.&quot;

Applications of a vanadium redox-flow battery to maintain power quality &quot;

Battery powered vehicles : Don't rule them out,&quot; Available: www.engin.umich.edu/dept/che/research/schwank/people/Papers/Batte ryPower.pdf Retrieved by

BP statistical review of world energy,&quot;

Characteristics and performance of 1 kW UNSW vanadium redox battery,&quot;

Characteristics and performance of 10 kW class all-vanadium redoxflow battery stack,&quot;

Characterization of the reaction environment in a filter-press redox flow reactor,&quot;

Development of a hybrid electric vehicle with a hydrogen-fueled IC engine,&quot; Vehicular Technology,

Development of prototype phosphoric acid fuel cell pick-up electric vehicle,&quot;

Development of redox flow battery system,&quot;

Electric and hybrid vehicles: Design fundamentals.

Electric vehicle battery systems.

Electric vehicle technology explained. West Sussex:

Electric vehicles charge forward,&quot;

Energy storage devices for future hybrid electric vehicles,&quot;

Energy Storage Systems for Automotive Applications,&quot; Industrial Electronics,

Energy storage systems for unmanned underwater vehicles,&quot;

Evaluation of control maintaining electric power quality by use of rechargeable battery system,&quot;

Fuel cell systems for electrical vehicles,&quot;

Fuel cells for road transportation purposes -- yes or no?,&quot;

Fuel price determination in transportation sector using predicted energy and transport demand,&quot;

Hybrid electric vehicles: The next generation automobile revolution,&quot;

Integrating a redox flow battery system with a wind-diesel power system,&quot;

Introduction to fuel cells and hydrogen technology,&quot;

Key challenges and recent progress in batteries, fuel cells, and hydrogen storage for clean energy systems,&quot;

Novel vanadium chloride/polyhalide redox flow battery,&quot;

Possible use of vanadium redox-flow batteries for energy storage in small grids and stand-alone photovoltaic systems,&quot;

R a d f o r d , J . C o x , R . G . A . W i l l s , a n d F . C . W a l s h , &quot;Electrochemical characterisation of activated carbon particles used in redox flow battery electrodes,&quot;

Recent progress with the USNW vanadium battery&quot;Available:http://www.arizonaenergy.org/Analysis/FuelCell/Va nadium%20Battery/recent_progress_with_the_unsw_va.htm,

Redox flow cells for energy conversion,&quot;

Research Associates Inc, &quot;Peak oil theory – “World running out of oil soon” – is faulty; could distort policy

System modeling and simulation as a tool for developing a vision for future hybrid electric vehicle drivetrain configurations,&quot;

Systems for hybrid cars &quot;

The end of cheap oil,&quot;

The future mobility of the world population,&quot;

The hype about hydrogen: Fact and fiction in the race to save the climate. Washington DC:

The state of the art of electric, hybrid, and fuel cell vehicles,&quot;

Vanadium redox-flow battery for a variety of applications,&quot;

Redox flow batteries for hybrid electric vehicles: progress and challenges

http://oro.open.ac.uk/22105/1/wermelinger10gttse.pdf

Some issues in the 'archaeology' of software evolution

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