2,864 research outputs found
Rotor Eddy-Current loss in permanent-magnet brushless AC machines
This paper analyzes rotor eddy-current loss in permanent-magnet brushless ac machines. It is shown that analytical or finite-element techniques published in literature for predicting rotor eddy-current loss using space harmonic based approaches may not yield correct results in each magnet segment when one magnet-pole is circumferentially segmented into more than two pieces. It is also shown that the eddy-current loss in each equally segmented piece may differ by a large margin, which implies that the temperature distribution in the magnets will be uneven and the risk of demagnetization has to be carefully assessed. The theoretical derivation is validated by time-stepped transient finite-element analysis
2-Chloro-4-(2-iodobenzenesulfonamido)benzoic acid
In the title compound, C13H9ClINO4S, the dihedral angle between the aromatic rings is 81.04 (17)°. The disposition of the I and Cl atoms attached to the two rings is anti. In the crystal, molecules are connected via O—H⋯O and N—H⋯O hydrogen bonds
POTENTIAL ROLE OF CARICA PAPAYA AND THEIR ACTIVE CONSTITUENTS IN THE PREVENTION AND TREATMENT OF DISEASES
Natural products or products from the plant source show pivotal role in the diseases prevention and treatment since ancient. Numerous plants and their ingredients such as Nigella sativa, curcumin, olive and dates fruits have proven health promoting effects. In this vista, Papaya (C. Papaya family Caricaceae) is a medicinal plant that has been extensively used in traditional medicine due to their versatile approach in diseases treatment and prevention. The health-promoting activities of papaya and their constituents are recognized due to antioxidant activity. C. Papaya holds a range of valuable constituents such as vitamin, flavonoids and minerals in the different parts of plants and each constituent shows role in the disease management. Earlier reports have proven that C. papaya fruits and its ingredients shows role in health management via prevention of the pathogenesis of diseases. Its leaf juice also contains significant constituents, and they shows very effective role in the management of dengue fever with platelet increasing property. In this review, we aimed to evaluate the applications of papaya in cancer, diabetes, wound healing, malaria, dengue fever and other various disease prevention and treatment.Â
FICUS CARICA AND ITS CONSTITUENTS ROLE IN MANAGEMENT OF DISEASES
Alternative medicines or formulation based on natural sources are good option in diseases cure and prevention. Ficus carica is member of Moraceae family and its health management properties have been mentioned in religious books and traditional medicines. It holds various constituents including phenolic compounds, minerals and vitamins and such ingredient shows role in disease cure. Studies based on in vivo and in vitro reported that figs fruits, stem, leaves, and latex have health management effect through antioxidant, anti-inflammatory effects, antimicrobial, anticarcinogenic, and anti-inflammatory effects. Moreover, an inverse correlation between figs use and development of disease has been noticed. Despite its implications in disease management, little is known about their mechanism of action. In this review, efforts are made based on in vivo and in vitro studies to illuminate the role of F. carica leaves and fruits in the prevention of diseases
Methyl 4-hydroxy-2-methoxycarbonylmethyl-1,1-dioxo-1,2-dihydro-1λ6,2-benzothiazine-3-carboxylate1
There are two independent molecules in the asymmetric unit of the title compound, C13H13NO7S, which have almost identical geometries. The thiazine ring adopts a sofa conformation in both molecules and the molecular conformations are stabilized by intramolecular O—H⋯O hydrogen bonds. Intermolecular C—H⋯O hydrogen bonds stabilize the crystal packing
Embedded Parallel Systolic Architecture For Multi-Filtering Techniques Using FPGA.
Computing systems typically suffer from delay in data processing
Geometry of Valley Growth
Although amphitheater-shaped valley heads can be cut by groundwater flows
emerging from springs, recent geological evidence suggests that other processes
may also produce similar features, thus confounding the interpretations of such
valley heads on Earth and Mars. To better understand the origin of this
topographic form we combine field observations, laboratory experiments,
analysis of a high-resolution topographic map, and mathematical theory to
quantitatively characterize a class of physical phenomena that produce
amphitheater-shaped heads. The resulting geometric growth equation accurately
predicts the shape of decimeter-wide channels in laboratory experiments,
100-meter wide valleys in Florida and Idaho, and kilometer wide valleys on
Mars. We find that whenever the processes shaping a landscape favor the growth
of sharply protruding features, channels develop amphitheater-shaped heads with
an aspect ratio of pi
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