As a typical carbon-based material, activated carbon (AC) has satisfied adsorption performance and is of great significance in the field volatile organic compounds (VOCs) pollutants removal. In order to further reveal optimization mechanism AC performance, coconut shell-based was selected as research object, different concentrations HNO 3 coupled with microwave were used for rapid modification ...

In this study, we evaluated the use of prickly pear seed cake, a by-product oil extraction, as new precursor for producing activated carbon by phosphoric acid activation, and obtained carbon’s capacity heavy metal removal from aqueous solution. Response surface methodology based on full factorial design at two levels (24) was developed to reduce number experiments reach optimal preparation cond...

In the Böhm theorem workshop on Crete island, Zoran Petric called Statman’s “Typical Ambiguity theorem” typed Böhm theorem. Moreover, he gave a new proof of the theorem based on set-theoretical models of the simply typed lambda calculus. In this paper, we study the linear version of the typed Böhm theorem on a fragment of Intuitionistic Linear Logic. We show that in the multiplicative fragment ...

This paper demonstrates the advantages of extending the scope of prototyping to the requirements capture phase of a project. Prototyping has long been used to elicit users’ responses to ready-formed designs (Boehm, 1988), but only recently has the use of concept demonstrators (Sanderson, 1997) and early throw-away prototypes (Smith et al., 1990) been suggested as a means to capture response to ...

The concerns of teenagers calling a peer listening phone service have previously been documented (Boehm & Campbell, 1995; Boehm, Chessare, Valko, & Sager, 1991; Boehm, Schondel, Marlowe, & Rose, 1995). The purpose of the present study was to determine if those calls were representative of the concerns of teenagers in the area served. Calls to Teen Line from September 1933 to May 1994 were compa...

Using qualitative data and historical methods, Barry Friedman asserts with confidence that “we the people” influence the decisions of the U.S. Supreme Court. Using quantitative data and statistical methods, political scientists are not so sure. Despite their best efforts to validate basic claims about the effect of public opinion on the Court, the evidence remains mixed at best. We enter this d...

Ahmed Abd-Allah, Barry Boehm ([email protected], [email protected]) USC Center for Software Engineering Computer Science Department University of Southern California Los Angeles, CA 90089-0781 Abstract: A persistent problem in software engineering is how to put software systems together out of smaller subsystems: the problem of software composition. The emergence of software architectures ...

2 Summary • Boehm [Boehm81] is credited to have formulated the " Two Rights " of software: – the problem of getting the right software – and – the problem of getting the software right. • The development processes needed – to achieve software that is right, to us, * requires that a proper study of the application domain * be done before a serious requirements study is attempted; and – to achiev...