In this study an analytical model for open loop pulsating heat pipes (PHPs) is presented. The model predicts the effect of different parameters such as evaporator temperature, length of evaporator, filling ratio, number of turn and tube diameter on PHP's performance. The governing equations in two phase flow including mass, momentum and energy equations are solved for both one dimensional liqu...

Today, PHP is one of the most popular programming languages and is commonly used in the open source community and in industry to build large application frameworks and web applications. In this paper, we discuss our ongoing work on PHP AiR, a framework for PHP Analysis in Rascal. PHP AiR is focused especially on program analysis and empirical software engineering, and is being used actively and...

iranian traditional medicine (itm) manuscripts contain prescriptions that have long been used for healing of wounds. the present study evaluates the healing effect of a poly herbal paste (php), retrieved from itm sources, containing aloe vera, commiphora myrrha and boswellia carteri using rat excision wound model. excision wounds were induced in six groups consisting of six rats each. group 1 r...

This paper is has addressed the Single Flexible Link Robot. The dynamical model is derived using Euler-Lagrange equation and then a proper controller is designed to suppress a  vibration based-on Input-Shaping (IS) method. But, IS control method is an open loop strategy. Due to the weakness of open loop control systems, a closed loop IS control system is proposed. The achieved closed loop c...

As an open source server-side scripts language, PHP is used more and more widely by Web developers now. Protecting PHP code from being plagiarized is also a hot research issue especially with the rapid development of dynamic web industry and people’s copyright protection consciousness. Usually the developers use PHP encoders to encrypt the PHP codes before selling them out. There are several di...

in this paper, distributed parameter process systems behavior is studied in frequency domain. based on the dominant gain concept that is developed for such studies, a method is presented to control distributed parameter process systems. by using dominant gain concept, the location of open loop zeros, resulted from the time delay parameter in the process model, were changed from the right half p...

While Java and PHP are two of the most popular languages for open source web applications found at freshmeat.net, Java has had a much better security reputation than PHP. In this paper, we examine whether that reputation is deserved. We studied whether the variation in vulnerability density is greater between languages or between different applications written in a single language by comparing ...

While Java and PHP are two of the most popular languages for open source web applications found at freshmeat.net, Java has had a much better security reputation than PHP. In this paper, we examine whether that reputation is deserved. We studied whether the variation in vulnerability density is greater between languages or between different applications written in a single language by comparing ...

This technical report describes the design and implementation of a front-end for phc, the open source PHP compiler. This front-end provides an excellent basis for developing tools which process PHP source code, and consists of a well-defined Abstract Syntax Tree (AST) specification for the PHP language, a lexical analyser and parser which construct the AST for a given script, and a visitor and ...