نتایج جستجو برای: trap state
تعداد نتایج: 881693 فیلتر نتایج به سال:
This paper is focused on the incorporation of recent techniques for multi-layer perceptron (MLP) based feature extraction in Temporal Pattern (TRAP) and Hidden Activation TRAP (HATS) feature extraction scheme. The TRAP scheme has been origin of various MLP-based features some of which are now indivisible part of state-of-the-art LVCSR systems. The modifications which brought most improvement – ...
Slow antihydrogen (H) is produced within a Penning trap that is located within a quadrupole Ioffe trap, the latter intended to ultimately confine extremely cold, ground-state H[over ] atoms. Observed H[over ] atoms in this configuration resolve a debate about whether positrons and antiprotons can be brought together to form atoms within the divergent magnetic fields of a quadrupole Ioffe trap. ...
A commercial, position-sensitive ion detector was used for the rst time for the time-ofight ion-cyclotron resonance detection technique in Penning trap mass spectrometry. In this work, the characteristics of the detector and its implementation in a Penning trap mass spectrometer will be presented. In addition, simulations and experimental studies concerning the observation of ions ejected from ...
A novel dipole force trap was developed for trapping caesium atoms in the lower hyperfine level of the ground state and in preliminary experiments a cloud of ≈1000 atoms was trapped. The viability of the trap is discussed, including suggestions for amendments to the trap design and problems that might occur which are intrinsic to the caesium atom.
a faunistic list of syrphidae sampled in the agroecosystems of neyshabur (khorasan-razavi province) through malaise, yellow water traps and hand net is hereby presented for the first time. a total of 22 species were collected, including 13 species through malaise trap, 5 through yellow water trap as well as representatives of all species sampled through hand net. among the species collected, 8 ...
حدت استافیلوکوکوس اورئوس اساساً توسط پروتئینهای مرتبط با دیوارهی سلولی و ترشح توکسینها تعیین میگردد، که بیان آنها تا حد زیادی توسط سیستمهای تنظیمی دو جزئی (tcrss) مثل سیستمهای تنظیم ژنی فرعی (agr) و rap-trap تنظیم میشود. تاکنون چهار واریانت آللی از agr (agr i-iv) و trap (trap 1-4) شناسایی شده است. برخی از گزارشها اظهار داشتهاند که تمایلات بالینی بر طبق هر گروه agr وجود دارد، اما اطل...
Ground state cooling and coherent manipulation of ions in an rf-(Paul) trap is the prerequisite for quantum information experiments with trapped ions. With resolved sideband cooling on the optical S1/2 -D5/2 quadrupole transition we have cooled one and two Ca ions to the ground state of vibration with up to 99.9% probability. With a novel cooling scheme utilizing electromagnetically induced tra...
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