A novel transfer learning-based short-term solar forecasting approach for India

Neural Computing and Applications - Deep learning models in recent times have shown promising results for solar energy forecasting. Solar energy depends heavily on local weather conditions, and as...     

Design and testing of a reversible ALU by quantum cells automata electro-spin technology

The Journal of Supercomputing - Arithmetic logic unit (ALU), a core component of a processor, is one of the thrust areas of the current research. Presently, ALU is designed by transistor-based CMOS...     

WTAOF-ILPB Based Feature Learning and LFSSOA-RBFNN Based Classification for Facial Micro-Expression Recognition

Wireless Personal Communications - The cloud computing paradigm offers several services to handle a large amount of data. These services include data storage, exploration, and analysis. Due to the...     

Benefits of sliceable photonic-based transponders in metro and long-haul networks

The multicast paradigm offers tremendous benefits in efficiency for transmitting data across optical networks, allowing a single client to send information to an entire set of endpoints. A multicast request is most efficiently provisioned through the creation of a tree, with the endpoints, or resources, occasionally serving as branching points. This practice can lead to the source of the request becoming disconnected from the associated resources should one of those branching resources fail. In cases where a large amount of data are currently in transmission, the ramifications of this failure can be severe. We propose an optimal solution through integer linear programming for the static protected multicast routing and wavelength assignment problem, where an entire set of requests is provisioned with built-in redundancy against single resource node failure. We compare the optimal performance against several heuristics and find that protection against this type of failure can be provided with the trade-off of increased wavelength consumption, compared to less-protected solutions.     

Clarification of Stevia extract by ultrafiltration: Selection criteria of the membrane and effects of operating conditions

Clarification of pre-treated Stevia extract using ultrafiltration is presented in this study. Performance of four different ultrafiltration membranes, namely 5, 10, 30 and 100 kDa were investigated in terms of permeate flux and permeate quality, mainly the recovery of Stevioside in the permeate. In this regard, the 30 kDa membrane was found to be most suitable. A systematic set of experiments under steady state were conducted to analyze the effects of the operating conditions, transmembrane pressure drop and stirrer speed on the permeate flux and permeate quality. Steady state was reached in between 8 and 16 min depending on the operating conditions. Steady state was reached earlier at higher stirring speed. A simple resistance in series model was used to quantify the fouling resistance. Membrane resistance was found to be negligible compared to the fouling resistance. It was a strong function of the stirrer speed but remained almost invariant with transmembrane pressure drop. The steady state permeate flux increased with pressure drop as well as the stirrer speed. 45% average recovery of Stevioside was obtained during stirred steady state experiments at lower operating pressures (276 and 414 kPa). At higher operating pressures, recovery of Stevioside in the permeate decreased remarkably.     

Evolution of nonlinear interfacial structure induced by combined effect of Rayleigh-Taylor and Kelvin-Helmholtz instability

The nonlinear evolution of two fluid interfacial structures such as bubbles and spikes arising due to the combined action of Rayleigh-Taylor and Kelvin-Helmholtz instability is investigated. Using Layzer's model analytic expressions for the asymptotic value of the combined growth rate are obtained in both cases for spikes and bubbles. However, if the overlying fluid is of lower density the interface perturbation behaves in different ways. Depending on the magnitude of the velocity shear associated with Kelvin-Helmholtz instability both the bubble and spike amplitude may simultaneously grow monotonically (instability) or oscillate with time.     

Synthesis of 4-Nitro-o-Xylene by Selective Nitration of o-Xylene

Nitration of o-xylene in the presence of fuming nitric acid and a combination of 115?% polyphosphoric acid, nitrobenzene, and H-Y zeolite catalyst provides a selectivity of 4-nitro-o-xylene of 71 at 85?mol% conversion of o-xylene. The present process has the potential to be an environmentally-friendly, sustainable, safe, and selective aromatic nitration process compared to the incumbent process.     

Influence of Oxygen Annealing in the Superconductivity and Electronic States of Mo0.3Cu0.7Sr2YCu2O y

We report the effect of oxygen-annealing in the superconductivity and electronic states for the Mo_0.3Cu_0.7Sr₂YCu₂O _y compound. The influence of oxygen annealing in the electronic states for Mo_0.3Cu_0.7Sr₂YCu₂O _y associated with a nonsuperconducting to superconducting state transformation has been investigated by means of X-ray photoelectron spectroscopy, powder X-ray diffraction, magnetic susceptibility, and resistivity measurements. We unambiguously show the preeminence of the Mo^V state over the Mo^VI one; annealing under an oxygen atmosphere enhances both the Mo^VI and Cu^II amounts. The enhancement of Mo^VI after oxygen annealing is in close relation with the decrease in the O 2p→Cu 3d charge-transfer energy resulting in superconducting properties. Oxygen annealing is then seemed to reduce the copper plane hole concentration of the overdoped as-prepared sample, which induces superconductivity in the Cu–O planes.     

Rhodium‐Catalyzed Enantioselective Conjugate Addition of Arylboronic Acids to Dihydronitronaphthalenes

A highly enantioselective (up to 91% ee) rhodium‐catalyzed asymmetric addition of arylboronic acids has been achieved leading to the challenging dihydro‐3‐nitronaphthalenes using one equivalent of phosphoramidite ligand to rhodium catalyst. A concise formal asymmetric synthesis of the dopamine D1 agonist, dihydrexidine was accomplished using the method.