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31.
This communication describes a simple, rapid and cost effective method of embedding a conductive and flexible material within microfluidic devices as a means to realize uniform electric fields within cellular microenvironments. Fluidic channels and electrodes are fabricated by traditional soft-lithography in conjunction with chemical etching of PDMS. Devices can be deformable (thus allowing for a combination of electro-mechanical stimulation), they are made from inexpensive materials and easily assembled by hand; this method is thus accessible to a wide range of laboratories and budgets. 相似文献
32.
A. Bertolini G. Carelli A. Moretti F. Strumia M.X. Qiu R. Corbalan C.M. Cojocaru 《Infrared Physics & Technology》1997,38(7):437-442
Eight new optically pumped far infrared laser transitions from ethyl bromide and 22 from trioxane are presented. For each new line we give the wavelength, the polarization relative to that of the pump laser and the absorption offset relative to the CO2 center frequency. The assignment of the rotovibrational states for the pump and the emission transitions of ethyl bromide are calculated. We also partly assigned the rotational levels of trioxane. 相似文献
33.
This is an Erratum to a Letter of ours [S. Moretti, M.R. Nolten, D.A. Ross, Phys. Lett. B 639 (2006) 513]. After its publication, we have discovered a mistake in a numerical program that affects the results presented therein. We provide here the corrected version. 相似文献
34.
Anodic growths on tungsten electrodes as a result of an applied electrostatic field with an atmosphere of benzonitrile (from about 5 × 10?4 to 10?5 torr) are studied as a function of many parameters. In order to observe the growth phenomena at high resolution in situ, the experiments were performed in an electron microscope. The growth rate of the dendrites is found to be irregular; an expression for dependence on the electric field is proposed to explain the evolution of needle length versus time t: The mechanism of branching is also discussed. 相似文献
35.
Pump saturation effects are reported for CH3 and CH3F optically pumped molecular lasers. The Lamb-dip of the pumping transition is observed directly in the optoacoustic absorption signal and as a transferred Lamb-dip in the emission of various FIR laser lines (CH3F 496 μm, CH3OH 119, 70.5 and 96.5 μm) . The offset of the absorbing transitions and their Stark effect are directly investigated. Results are also reported for the unassigned CH3OH 164 μm line. 相似文献
36.
37.
Akihiro Fukabori Takayuki Yanagida Federico Moretti Yuui Yokota Rayko Shimura Shuji Maeo Jan Pejchal Kei Kamada Akira Yoshikawa 《Radiation measurements》2010,45(3-6):453-456
Micro-pulling down (μ-PD) method allows to prepare single crystals quickly and relatively inexpensively. Since it is a melt growth and taking into account segregation phenomena, the μ-PD method allows also to obtain single crystals characterized by dopant concentration gradients. Especially, taking the advantage of the grown crystal high aspect ratio, it allows to prepare crystalline samples with variable and wide range concentrations of dopants. These samples can help in understanding the correlation between dopant concentration and luminescence properties. 相似文献
38.
M. Bisset N. Kersting J. Li F. Moortgat S. Moretti Q. L. Xie 《The European Physical Journal C - Particles and Fields》2006,45(2):477-492
Processes of the form pp → anything → XiXj →
+
+ notE are studied via a technique that may be viewed as an adaptation of time-honoured Dalitz plot analyses. Xi and Xj are new heavy states (with i, j =1, . . .,n), which may be identical or distinct; and
and
are necessarily distinct standard model (SM) fermion pairs whose invariant masses can be measured. A Dalitz-like plot of
said invariant masses,
versus
, exhibits a topology connected to the masses and specific decay chains of Xi and Xj. Aside from relatively minor details, observed patterns consist of a collection of box and wedge shapes. This collection
is model-dependent: comparison of the observed pattern to the possibilities for a specific model yields information on which
new particle pair combinations are actually being produced, information beyond that extractable from conventional one-dimensional
invariant mass distributions. The technique is illustrated via application to the minimal supersymmetric standard model (MSSM)
process pp →
→ e+e- + μ+μ- notE. Here the heavy states are neutralinos
(i = 2,3,4) - note that
is excluded - which are produced in gluino/squark (
/
) cascade decay chains. Even with fairly modest expectations for the LHC performance during the first few years, this method
still provides substantial insight into the neutralino mass spectrum and couplings if gluino/squark masses are relatively
low (≃ 400 GeV).
Arrival of the final proofs: 29 November 2005 相似文献
39.
Consider a finite dimensional complex Hilbert space ${\mathcal{H}}$ , with ${dim(\mathcal{H}) \geq 3}$ , define ${\mathbb{S}(\mathcal{H}):= \{x\in \mathcal{H} \:|\: \|x\|=1\}}$ , and let ${\nu_\mathcal{H}}$ be the unique regular Borel positive measure invariant under the action of the unitary operators in ${\mathcal{H}}$ , with ${\nu_\mathcal{H}(\mathbb{S}(\mathcal{H}))=1}$ . We prove that if a complex frame function ${f : \mathbb{S}(\mathcal{H})\to \mathbb{C}}$ satisfies ${f \in \mathbb{L}^2(\mathbb{S}(\mathcal{H}), \nu_\mathcal{H})}$ , then it verifies Gleason’s statement: there is a unique linear operator ${A: \mathcal{H} \to \mathcal{H}}$ such that ${f(u) = \langle u| A u\rangle}$ for every ${u \in \mathbb{S}(\mathcal{H}).\,A}$ is Hermitean when f is real. No boundedness requirement is thus assumed on f a priori. 相似文献
40.
Paolo Moretti Suyu Liu Claudio Castellano Romualdo Pastor-Satorras 《Journal of statistical physics》2013,151(1-2):113-130
We present a detailed investigation of the behavior of the nonlinear q-voter model for opinion dynamics. At the mean-field level we derive analytically, for any value of the number q of agents involved in the elementary update, the phase diagram, the exit probability and the consensus time at the transition point. The mean-field formalism is extended to the case that the interaction pattern is given by generic heterogeneous networks. We finally discuss the case of random regular networks and compare analytical results with simulations. 相似文献