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Novel microphone-like ZnO microstructures were grown at a very high density via a simple thermal evaporation process using commercially available ZnO powder in ambient air at ∼ 1050 ± 20 °C in 1 h. The unique as-grown microstructures were characterized in detail in terms of their structural and optical properties. The structural properties of the synthesized products confirmed that they were wurtzite hexagonal phase for the as-grown products. Raman-scattering spectra exhibited a strong and dominated Raman-active E2 (high) mode at 441 cm− 1, confirming the wurtzite hexagonal phase for the as-grown microphone-like ZnO morphologies. The cathodoluminescence (CL) spectrum shows a suppressed near band edge emission at ∼ 380 nm and strong green emission at ∼ 500 nm. 相似文献
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Hansang Bae Dheya Mustafa Jae-Woo Lee Aurangzeb Hao Lin Chirag Dave Rudolf Eigenmann Samuel P. Midkiff 《International journal of parallel programming》2013,41(6):753-767
This paper provides an overview and an evaluation of the Cetus source-to-source compiler infrastructure. The original goal of the Cetus project was to create an easy-to-use compiler for research in automatic parallelization of C programs. In meantime, Cetus has been used for many additional program transformation tasks. It serves as a compiler infrastructure for many projects in the US and internationally. Recently, Cetus has been supported by the National Science Foundation to build a community resource. The compiler has gone through several iterations of benchmark studies and implementations of those techniques that could improve the parallel performance of these programs. These efforts have resulted in a system that favorably compares with state-of-the-art parallelizers, such as Intel’s ICC. A key limitation of advanced optimizing compilers is their lack of runtime information, such as the program input data. We will discuss and evaluate several techniques that support dynamic optimization decisions. Finally, as there is an extensive body of proposed compiler analyses and transformations for parallelization, the question of the importance of the techniques arises. This paper evaluates the impact of the individual Cetus techniques on overall program performance. 相似文献
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Arshad Hasna Shaheen Saima Khan Javed Ali Anwar Muhammad Shahid Aurangzeb Khursheed Alhussein Musaed 《Cognition, Technology & Work》2023,25(2-3):305-324
Cognition, Technology & Work - Requirements prioritization is essential for development of quality software products. Requirements prioritization helps focus on the most important requirements... 相似文献
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Javaid Sakeena Javaid Nadeem Alhussein Musaed Aurangzeb Khursheed Iqbal Sohail Anwar Muhammad Shahid 《Cognition, Technology & Work》2023,25(2-3):291-304
Cognition, Technology & Work - Maintaining the records of domestic consumers’ electricity consumption patterns is very complex task for the utilities, especially for extracting the... 相似文献