Entity

Time filter

Source Type

Islamabad, Pakistan

Ahmad L.,Allama Iqbal Open University | Aslam M.,Forman Christian College | Jun C.-H.,Pohang University of Science and Technology
Transactions of the Institute of Measurement and Control | Year: 2014

A control chart, being an important tool of statistical process control, has been used for process monitoring and detection of any out-of-control process situation. In this paper, the Shewhart X̄ chart, also known as the traditional control chart, in combination with the process capability index Cp proposed by Subramani and Balamurali, is presented under the repetitive sampling scheme. The optimal design parameters of the proposed control chart are calculated. The performance of the proposed control chart is evaluated through the average run lengths (ARLs). Numerical tables have been constructed for the purpose of comparing the in-control ARL and the out-of-control ARL with the single sampling scheme. The findings of the study show that the newly suggested sampling scheme is better than the existing single sampling scheme in detection of mean shift of the process. © The Author(s) 2013. Source


Saeed S.,Allama Iqbal Open University | Jasinski J.P.,Keene State College | Butcher R.J.,Howard University
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

In the title compound, C 13H 9BrN 2O 3, the dihedral angle between the mean planes of the two benzene rings is 3.6 (7)°. The amide group is twisted by 28.1 (6) and 31.8 (3)° from the mean planes of the 4-bromophenyl and 4-nitrobenzene rings, respectively. The crystal packing features weak intermolecular N -H⋯O and C -H⋯O hydrogen bonds resulting in a threedimensional network. Source


Arif M.,Allama Iqbal Open University | Mahmood K.,University of Punjab
Electronic Library | Year: 2012

Purpose -The aim of this study was to explore the pattern and extent of the adoption of Web 2.0 technologies by Pakistani librarians. Design/methodology/ approach -A survey was conducted using web-based surveying software (SurveyMonkey) and Pakistan based LIS e-mail discussion groups. Professional librarians serving in all types of libraries participated in the study. Findings -Instant messaging, blogs, social networking and wikis were the most popular Web 2.0 technologies. Librarians adopted such technologies in their professional and personal lives. Gender, length of professional experience and place of work have no effect on the frequency of use, while perceived skill level of internet use and perceived ease of Web 2.0 use have a significant effect on the frequency. Lack of computer literacy, and lower availability of computers and internet facilities were the major hindrances of Web 2.0 adoption by librarians. Awareness and training programs could enable librarians to cope with Web 2.0 technologies. Research limitations/implications -Due to the use of a non-probability/non-representative sampling method, the results cannot be generalized. Practical implications -This study will create awareness among LIS professionals toward the use of advanced technology in their professional environment. The findings of this study will contribute to the successful adoption of Web 2.0 in libraries. Originality/value -This is the first study on the adoption of Web 2.0 technologies in Pakistani librarianship. © Emerald Group Publishing Limited. Source


Ghafoor A.,Pakistan National Agricultural Research Center | Sultana T.,The University of Faisalabad | Rizvi Z.F.,Allama Iqbal Open University
Pakistan Journal of Botany | Year: 2012

Thirty seven pure-lines of blackgram were studied for Randomly Amplified Polymorphic DNA (RAPD) markers to investigate diversity. Among 53 primers 36 produced polymorphic fragments in blackgram, hence could be used for investigating genetic diversity. Ninety four markers were observed from 11 primers and out of these 72% were polymorphic. The genotypes acquired from Korea, Afghanistan and AVRDC grouped together, whereas genotypes from Pakistan and India were scattered. The RAPD markers were found useful for studying genetic diversity but clustering did not exhibited indication for agronomic performance, whereas quantitative traits contributed more towards agronomic performance. Cluster revealed that only a portion of genetic diversity has been exploited for blackgram improvement that should broaden involving diverse parents from various clusters. Source


A series of variously substituted 1,3-thiazole heterocyclic compounds (3a-3d) were prepared by base-catalyzed S-cyclization of corresponding 2,4-dichloro-N-{[(4-substitutedphenyl)amino]carbonothioyl}benzamide (2a-2d) with acetophenone in the presence of bromine. The structure of all compounds was established by IR, 1H-NMR, 13C-NMR, elemental analysis, and X-ray crystallographic analysis. © 2012 Hetero Corporation. Source

Discover hidden collaborations