نتایج جستجو برای: depth at above
تعداد نتایج: 3924486 فیلتر نتایج به سال:
Background and Objective: Nitrate is one of the dissolved anions having great health importance in water. Human activities and natural sources are considered as the main roots of nitrate intrusion in to water bodies. The main objective of this paper was to study nitrate removal by packed bed column filled with (PAN)-oxime-nano Fe2O3. Materials and Methods: PAN-oxime-nano Fe2O3 were synthesized ...
In models based on large extra dimensions where massive spin 2 exchange can dominate at high energies, the neutrino-proton cross section can rise to typical hadronic values at energies above 10 eV. The neutrino then becomes a candidate for the primary that initiates the highest energy cosmic ray showers. We investigate characteristics of neutrino-induced showers compared to proton-induced showe...
Satellite retrievals of cloud optical depth and effective radius are shown to be underestimated in the South Atlantic Ocean, where biomass-burning aerosols typically reside above low-level, liquid water stratocumulus clouds. A radiative transfer model is used to calculate top of the atmosphere (TOA) reflectances for a case where an aerosol layer is elevated above a liquid cloud in the South Atl...
Introduction: The varying amount of airborne dust particles observed at high latitudes directly affects the polar energy balance of Mars [1]. The behavior of aerosols above the south polar cap differs from that seen in equatorial and mid-latitude regions ([2], [3], [4]). It can however not be determined by classical thermal infrared methods of optical depth retrieval as the thermal contrast bet...
abstract background and aims. the aim of this study was to evalute the effect of double pedicle graft (dpg) with and without plasma rich in growth factor (prgf) in the treatment of miller's cl i and ii gingival recessions. materials and methods. thirty two bilateral buccal gingival miller’s cl i and ii recessions were selected. sixteen of the recessions were treated with dpg and prgf (test grou...
The delay fault testing has become an important part of the overall test development process. But delay fault testing is not so mature as stuck-at fault testing. The paper surveys various delay fault models, their advantages and limitations. The current trends in test pattern generation for delay faults are analyzed, too. The test pattern generation is directly related to the coverage metrics. ...
Greenhouse and field experiments with American ginseng (Panax quinquefolius L.) stratified seed sown at depths of 10 to 100 mm were carried out to determine effects of seeding depth on seedling emergence, growth and development and to calculate optimum seeding depth. The time to 50% seedling emergence (E50) in the field increased linearly from 17 d at 20 mm seeding depth to 42.5 d at 80 mm. See...
We describe the measurement of the depth of maximum, X{max}, of the longitudinal development of air showers induced by cosmic rays. Almost 4000 events above 10;{18} eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one surface detector station are selected for the analysis. The average shower maximum was found to evolve with energy at a rate o...
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