搜索结果: 1-13 共查到“工学 TRAP”相关记录13条 . 查询时间(0.609 秒)
Zeolites are a class of minerals used in everything from industrial catalysts and chemical filters to laundry detergents and cat litter. They are mostly composed of silicon and aluminum — two abundant...
'Like a fishing net,' nanonet collapses to trap drug molecules（图）
nanonet collapses trap drug molecules
2020/10/10
Scientists are casting a net for nanoparticles.A Northwestern University team has discovered a new, rapid method for fabricating nanoparticles from a simple, self-assembling polymer. This re...
针对目前常用的连续数据保护系统仅直接备份变化数据,从而需消耗大量存储空间的问题,设计并实现了一种基于TRAP-4的连续数据保护(CDP)系统。该系统通过卷过滤驱动捕获用户对数据卷的修改,并使用TRAP-4的方式对变化数据进行计算压缩,最终将压缩后的数据备份至备份中心;恢复时只需对压缩后的数据进行逆向解压重组便能将数据卷恢复至任意时间点。实验结果表明,在卷分块大小固定的情况下相对目前常用的CDP系统...
Stochastic dynamics of an electron in a Penning trap: phase flips correlated with amplitude collapses and revivals
Stochastic dynamics electron amplitude
2011/9/28
We study the effect of noise on the axial mode of an electron in a Penning trap under parametric-resonance conditions. Our approach, based on the application of averaging techniques to the description...
NOx Reduction on Fully Formulated Lean NOx Trap Catalysts Subjected to Simulated Road Aging: Insights from Steady-State Experiments（图）
lean NOx trap NOx storage-reduction catalyst steady state NOx reduction ceria-zirconia catalyst aging
2013/10/13
Fully formulated lean NOx trap (LNT) catalysts of the type Pt/Rh/BaO/Al2O3 were prepared with and without incorporation of CeO2-ZrO2 in the washcoat, and their NOx reduction behavior was evaluated in ...
Extraction of Gaseous VOCs Using Passive Needle Trap Samplers
Solid phase microextraction (SPME) Needle trap Volatile organic compound (VOC)
2016/3/28
Gaseous toluene, ethylbenzene and o-xylene (TEX) were extracted by using the divinylbenzene (DVB) particle of
60–80 mesh as a sorbent packed in series of needle trap samplers (NTS). The feasibility o...
为了快速确定大型Petri网模型中的trap (siphon) 逻辑结构，提出一种由Petri网关联矩阵寻找最小trap和siphon集合的有效算法。通过分析Petri网中trap和siphon集合对应的库所子集在关联矩阵中的特征，根据变迁的输入输出库所组合规则和目的，提出一种二元操作算子，由此构造计算最小trap和siphon集合的矩阵求解算法，以实例详细阐述了算法的具体步骤。通过与已有求解方法...
Production of spinor condensates of 87Rb released from a magnetic trap
spinor condensates Bose–Einstein condensate
2011/5/9
Most of spinor condensates studied so far were produced in situ in dipole optical traps. Our
new method allows production of spinor condensates in an expanding atomic cloud. Since
the spinor condens...
Diagnostics and loading of an atomic optical dipole trap
cold atoms atom trapping optical dipole trap
2011/5/9
We describe diagnostic techniques used for optimization of loading of an optical dipole trap with
CO2 laser and 87Rb atoms. Atoms, precooled in a magneto-optical trap, were loaded into the trap
form...
开发TRAP 标记的新策略
TRAP 分子标记开发 烟草 类香料烟特殊高香气
2010/9/1
烟草作为重要的经济作物和生物工程研究领域的模式植物，由于基因组庞大、结构复杂、重复序列较多以及缺少理想的分子标记，致使大量重要农艺、品质性状缺少分子水平上的遗传研究。因此开发适合烟草的分子标记对其遗传研究具有重要意义。本研究在以往TRAP 标记开发经验的基础上，探索了一种直接利用EST-SSR 引物作为固定引物开发TRAP 标记的新方法，降低了TRAP 标记的开发难度和成本，在短期内能开发出丰富的...
Nonlinear Resonances of Laser Cooled Ions in a Linear Paul Trap due to the Anharmonicity of the Trap Potential
Linear Paul trap Anharmonicity Nonlinear resonance Laser cooling
2009/6/12
The anharmonicity of the trap potential influences the motion of trapped and laser-cooled ions. The magnitudes of higher-order components of the trap potential depend on the electrode geometry. In thi...
Occurrence patterns of the Pliocene to Pleistocene planktonic foraminiferal marker beds with relation to the timing of hydrocarbon trap formation, offshore and coastal areas of Akita Prefecture, Japan
foraminifera marker bed Pliocene Pleistocene Akita Prefecture deep sea erosion
2009/5/7
Planktonic foraminiferal marker beds such as Globorotalia ikebei bed, No.3 and No.2 Globorotalia inflata beds and Neogloboquadrina asanoi bed, have been useful for correlation and age determination ...
为了快速确定大型Petri网模型中的trap (siphon) 逻辑结构，提出一种由Petri网关联矩阵寻找最小trap和siphon集合的有效算法。通过分析Petri网中trap和siphon集合对应的库所子集在关联矩阵中的特征，根据变迁的输入输出库所组合规则和目的，提出一种二元操作算子，由此构造计算最小trap和siphon集合的矩阵求解算法，以实例详细阐述了算法的具体步骤。通过与已有求解方法...