Testing plug-in-based systems is challenging due to complex interactions among many different plug-ins, and variations in version and configuration. The objective of this paper is to increase our understanding of what testers and developers think and do when it comes to testing plug-in-based systems. To that end, we conduct a qualitative (grounded theory) study, in which we interview 25 senior ...

The installation and configuration of a new network component is a difficult task due to the heterogeneous nature of today’s telecommunication networks. This task requires substantial effort and extensive expertise on the part of the network administrator because he has to set hardware and software attributes for a variety of such components to make them work together. We propose a solution to ...

A monocationic plug-socket connector that is composed, at the molecular level, of three components, (1) a secondary dialkylammonium center (CH2NH2+CH2), which can play the role of a plug toward dibenzo[24]crown-8 (DB24C8), (2) a rigid and conducting biphenyl spacer, and (3) 1,4-benzo-1,5-naphtho[36]crown-10 (BN36C10), capable of playing the role of a socket toward a 4,4'-bipyridinium dicationic...

Oxygen transfer through a cotton plug follows Fick's law of diffusion. The apparent diffusion constant decreases as the density of cotton packing is increased. Formulas are derived which relate oxygen transfer to cotton-plug dimensions. Calculations indicate that the dimensions of a cotton plug can affect both the maximal oxygen uptake rate and the gas composition inside a shaken flask. In some...

Alkaline hydrolysis of ethyl acetate is essentially an irreversible and second order reaction. Industrial importance of the reaction product, sodium acetate, necessitate for process improvement in terms of maximum conversion and economical usage of raw materials. Statistical design of experiments was utilized to enhance conversion in both batch and plug flow reactors.A full two level factor...

plug-flow digesters with periodic loading mechanism are more enthusiastic than fully mechanized digestion plants for the majority of small or medium scale farms according to the costs and operational complexities. a dual-compartment plug-flow reactor equipped with a passive heating system was designed and experimentally operated by purpose of demonstrating a simple and low cost technology for h...

A typical heavy-duty diesel fuel injector comprises of a solenoid control valve, a plunger cylinder and a fuel passage linking the first two elements. Through this passage a fuel communication is established where the fuel is delivered into the plunger cylinder via control valve. The plunger pressurizes the fuel in excess of 32,000 psi and the high-pressure fuel is injected through spray nozzle...

Two mathematical models of vacuum aspiration, being a method widely used in various branches of medicine, are considered. In particular, vacuum aspiration is an effective method of prostatitis therapy. The purpose of vacuum aspiration in this urological procedure is to destroy the plug, which clogs up the ill acinus. We analyze plausible physical mechanisms of purification of prostatic acini an...

This paper presents a low-cost and flexible solution to control and monitor home appliances using Smart Plug devices. The Smart Plug is a power switch which can be accessed via WiFi connection. It integrates two temp sensors, a current sensor and an IRemitter. Users can plug devices into the Smart Plug to remotely switch power on/off, get information of device’s power consumption and ambient te...