搜索结果: 1-15 共查到“理学 conventional”相关记录22条 . 查询时间(0.078 秒)
Researchers show that protein from microbes uses a fraction of the resources of conventional farming
solar-powered microbes protein ecosystem
2021/8/5
An international research team has shown that using solar-panels to produce microbial protein -- which is rich not just in proteins but also in other nutrients -- is more sustainable, efficient and en...
Physicists at the University of Illinois at Urbana-Champaign announced they have observed a magnetic phenomenon called the "anomalous spin-orbit torque," or ASOT, for the first time. The team's findin...
Unconventional quasiparticles predicted in conventional crystals
Unconventional quasiparticles predicted conventional crystals
2016/8/1
An international team of researchers has predicted the existence of several previously unknown types of quantum particles in materials. The particles — which belong to the class of particles known as ...
Maximum entropy estimation of values at Mt. Etna: comparison with conventional least squares and maximum likelihood results and correlation with volcanic activity
frequency-magnitude distribution maximim entropy method Mt. Etna
2015/10/8
The variations of the b coefficient in the frequency-magnitude relationship for earthquakes which occurred at Mt. Etna from 01/01/90 to 31/12/92 are analyzed; the completeness threshold for our earthq...
Physicists defy conventional wisdom to identify ferroelectric nanomaterial
Physicists conventional wisdom ferroelectric nanomaterial
2015/9/25
A team of physicists has defied conventional wisdom by inducing stable ferroelectricity in a sheet of strontium titanate only a few nanometers thick.
The discovery could open new pathways to find new...
Quantification of Vibrio vulnificus in shellfish by conventional *PCR and real time PCR
Vibrio vulnificus gram-negative bacteria sepsis gastroenteritis pathogens seafood nucleic acid dye
2015/1/28
Vibrio vulnificus is a Gram-negative estuarine bacterium that can cause wound infection, primary septicemia and gastroenteritis in susceptible individuals. Since it is a notably lethal pathogen associ...
Conventional tillage versus organic farming in relation to soil organic carbon stock in olive groves in Mediterranean rangelands (southern Spain)
Conventional tillage organic farming soil organic carbon stock olive groves Mediterranean rangelands
2015/1/6
Soil organic carbon (SOC) concentration is a soil variable subject to changes. The management system is a key factor that influences these changes. To determine the long-term effects of the management...
Conventional and charge six superfluids from melting hexagonal Fulde-Ferrell-Larkin-Ovchinnikov phases in two dimensions
Fulde-Ferrell-Larkin-Ovchinnikov two dimensions
2011/9/13
We consider defect mediated melting of Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) and pair density wave (PDW) phases in two dimensions. Examining mean-field ground states in which the spatial oscillation...
An alternative to the conventional micro-canonical ensemble
alternative conventiona micro-canonical ensemble
2010/11/11
Usual approach to the foundations of quantum statistical physics is based on conventional micro-canonical ensemble as a starting point for deriving Boltzmann-Gibbs (BG) equilibrium. It leaves, howeve...
Impact of the assimilation of conventional data on the quantitative precipitation forecasts in the Eastern Mediterranean
data Eastern Mediterranean
2010/1/27
This study is devoted to the evaluation of the role of assimilation of conventional data on the quantitative precipitation forecasts at regional scale. The conventional data included surface station r...
The Use of Environmental Isotope Techniques together with Conventional Methods in Regional Groundwater Studies
Environmental Isotope Techniques Conventional Methods Regional Groundwater Studies
2009/10/29
Regional hydrological investigations of the subsurface drainage in the neovolcanic
area around lake Thorisvatn on the central Icelandic plateau have been
carried out as well as geological exploratio...
Comparison of conventional Lagrangian stochastic footprint models against LES driven footprint estimates
conventional Lagrangian stochastic footprint models LES footprint estimates
2009/8/7
In this study we introduce a comparison method for footprint model results by evaluating the performance of conventional Lagrangian stochastic (LS) footprint models that use parameterised flow field c...
Microwave-Assisted Synthesis of Some Metal-Free Phthalocyanine Derivatives and a Comparison with Conventional Methods of their Synthesis
Synthesis metal-free phthalocyanines microwave irradiation conventional heating lithium pentanol
2010/4/9
Synthesis of metal-free 2,9(10),16(17),23(24)-tetra(3,5- dimethylphenoxy) phthalocyanine, 2,9(10),16(17), 23(24)-tetra(4- tert-butylphenoxy) phthalocyanine, and 2,9(10),16(17),23(24)-tetra(3,5- di-ter...
A Planetary Wave Analysis Using the Acoustic and Conventional Arrays in the 1981 Ocean Tomography Experiment
Planetary Wave Analysis Conventional Arrays Ocean Tomography Experiment
2009/1/8
Using the maximum likelihood estimation method, quasi-geostrophic wave solutions are fitted to the observations of the 1981 Ocean Acoustic Tomography Experiment. The experiment occupied a 300 km squar...
Valuable mineral resources are widely distributed throughout the seabed. autonomous underwater vehicles (AUVs) are preferable to remotely-operated vehicles (ROVs) when probing for such mineral resources as the extensive exploration area makes it difficult to maintain contact with operators. AUVs depend on batteries, so their power consumption should be reduced to extend exploration time. Power for conventional marine instrument systems is incorporated in their waterproof sealing. External intermittent control of this power source until termination of exploration is challenging due to limitations imposed by the underwater environment. Thus, the AUV must have a power control system that can improve performance and maximize use of battery capacity. The authors developed such a power control system with a three-step algorithm. It automatically detects underwater operational states and can limit power, effectively decreasing power consumption by about 15%.
surface piercing propeller boundary element method hydrodynamic characteristics
2011/9/13
Demand for high-speed marine vehicles (HSMVs) is high among both commercial and naval users. It is the duty of the marine vessel’s designer to provide a hull and propulsion system that diminishes drag...