Fluorescence is a promising technique adopted as a large number of optical sensing probes. Here, a facile and rapid fluorometric 3-mercaptopropionic acid capped zinc sulfide (MZnS) quantum dots (QDs) based...

Processing cores and the accompanying main memory working in tandem enable the modern processors. Dissipating heat produced from computation remains a significant problem for processors. Therefore, the thermal management of processors continues to be an active subject of research. Most thermal management research is performed using simulations, given the challenges in measuring temperatures in real processors. Fast yet accurate interval thermal simulation toolchains remain the research tool of choice to study thermal management in processors at the system level. However, the existing toolchains focus on the thermal management of cores in the processors since they exhibit much higher power densities than memory. The memory bandwidth limitations associated with 2D processors lead to high-density 2.5D and 3D packaging technology. 2.5D packaging technology places cores and memory on the same package. 3D packaging technology takes it further by stacking layers of memory on the top of cores themselves. These new packagings significantly increase the power density of the processors, making them prone to overheating. Therefore, mitigating thermal issues in high-density processors (packaged with stacked memory) becomes even more pressing. However, given the lack of thermal modeling for memories in existing interval thermal simulation toolchains, they are unsuitable for studying thermal management for high-density processors. To address this issue, we present the first integrated Co re and Me mory interval T hermal simulation toolchain called CoMeT . CoMeT comprehensively supports thermal simulation of high- and low-density processors corresponding to four different core-memory (integration) configurations – off-chip DDR memory, off-chip 3D memory, 2.5D, and 3D. CoMeT supports several novel features that facilitate overlying system research. CoMeT adds only an additional ∼ 5% simulation-time overhead compared to an equivalent state-of-the-art core-only toolchain. The source code of CoMeT has been made open for public use under the MIT license.

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Attempt is made to understand the impact of tanneries on ground water quality of Unnao. Study was undertaken to evaluate physico-chemical parameters and chromium, lead iron concentration in ground water near tannery industries. The results revealed that only two parameters fluoride and chromium are present in slight high concentration than permissible limit. Ground water quality % sample compliance / violation with respect to BIS standard were also studied.