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C. S. Venkata Ram 《Cellular and molecular life sciences : CMLS》1957,13(7):284-284
Zusammenfassung Durch biologische und papierchromatographische Methoden konnte nachgewiesen werden, dassauchFusarium orthoceras den Welkestoff Fusarinsäure in die Kulturflüssigkeit abscheidet. Unter den angegebenen Bedingungen werden relativ grosse Mengen dieses Stoffes gebildet (300 mg/l gegenüber 65 mg/l durchF. moniliforme und 35 mg/l durchF. vasinfectum). 相似文献
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Danda Srinivas Rao Tadiparthi Venkata VijayaKumar Sripada Subba Rao Swarna Prabhakar Guntamadugu Bhaskar Raju 《矿物冶金与材料学报》2011,18(5):515-522
The recovery of iron from the screw classifier overflow slimes by direct flotation was studied. The relative effectiveness of sodium silicates with different silica-to-soda mole ratios as depressants for silica and silicate bearing minerals was investigated. Silica-to-soda mole ratio and silicate dosage were found to have significant effect on the separation efficiency. The results show that an increase of Fe content in the concentrate is observed with concomitant reduction in SiO2 and Al2O3 levels when a particular type of sodium silicate at a proper dosage is used. The concentrate of 58.89wt% Fe, 4.68wt% SiO2, and 5.28wt% Al2O3 with the weight recovery of 38.74% and the metal recovery of 41.13% can be obtained from the iron ore slimes with 54.44wt% Fe, 6.72wt% SiO2, and 6.80wt% Al2O3, when Na2SiO3 with a silica-to-soda mole ratio of 2.19 is used as a depressant at a feed rate of 0.2 kg/t. 相似文献
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R. V. Krishnamoorthy V. Venkata Reddy 《Cellular and molecular life sciences : CMLS》1968,24(10):1019-1020
Zusammenfassung Im Hepatopankreas der Krabben sind Fermentsysteme, die eine Wärmeadaptation besitzen. Diese lässt sich mit ähnlichen physiologischen Erscheinungen bei kaltblütigen Vertebraten vergleichen. 相似文献
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Ji Li Akshita Maradapu Vera Venkata Sai Xiuzhen Cheng Wei Cheng Zhi Tian Yingshu Li 《清华大学学报》2021,26(2):219-229
The ever increasing requirements of data sensing applications result in the usage of Io T networks. These networks are often used for efficient data transfer. Wireless sensors are incorporated in the Io T networks to reduce the deployment and maintenance costs. Designing an energy efficient data aggregation method for sensor equipped Io T to process skyline query, is one of the most critical problems. In this paper, we propose two approximation algorithms to process the skyline query in wireless sensor networks. These two algorithms are uniform samplingbased approximate skyline query and Bernoulli sampling-based approximate skyline query. Solid theoretical proofs are provided to confirm that the proposed algorithms can yield the required query results. Experiments conducted on actual datasets show that the two proposed algorithms have high performance in terms of energy consumption compared to the simple distributed algorithm. 相似文献
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Rasmussen SG Choi HJ Rosenbaum DM Kobilka TS Thian FS Edwards PC Burghammer M Ratnala VR Sanishvili R Fischetti RF Schertler GF Weis WI Kobilka BK 《Nature》2007,450(7168):383-387
Structural analysis of G-protein-coupled receptors (GPCRs) for hormones and neurotransmitters has been hindered by their low natural abundance, inherent structural flexibility, and instability in detergent solutions. Here we report a structure of the human beta2 adrenoceptor (beta2AR), which was crystallized in a lipid environment when bound to an inverse agonist and in complex with a Fab that binds to the third intracellular loop. Diffraction data were obtained by high-brilliance microcrystallography and the structure determined at 3.4 A/3.7 A resolution. The cytoplasmic ends of the beta2AR transmembrane segments and the connecting loops are well resolved, whereas the extracellular regions of the beta2AR are not seen. The beta2AR structure differs from rhodopsin in having weaker interactions between the cytoplasmic ends of transmembrane (TM)3 and TM6, involving the conserved E/DRY sequences. These differences may be responsible for the relatively high basal activity and structural instability of the beta2AR, and contribute to the challenges in obtaining diffraction-quality crystals of non-rhodopsin GPCRs. 相似文献
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