Angular distribution, kinetic energy distributions, and excitation functions of fast metastable oxygen fragments following electron impact of CO2

Dissociative excitation of CO2 by electron impact was studied using the methods of translational spectroscopy and angular distribution analysis. Earlier time of flight studies revealed two overlapping spectra, the slower of which was attributed to metastable CO(a3 pi) fragments. The fast peak is the focus of this study. Threshold energy, angular distribution, and improve time of flight measurements indicate that the fast peak actually consists of five overlapping features. The slowest of the five features is found to consist of metastable 0(5S) produced by predissociation of a sigma u + state of CO2 into 0(5S) + CO(a3 pi). Oxygen Rydberg fragments originating directly from a different sigma u + state are believed to make up the next fastest feature. Mechanisms for producing the three remaining features are discussed

Monitoring System Building Plan for Risk of Civil Office

The development of increasingly rapid information technology requires companies to have a system that is able to provide data and information quickly and accurately. Tangerang Regency Education Office is a government agency in charge of controlling the education sector. In its business process, the Education Office still faces difficulties in obtaining reports on employment in periodic salary increases, because the system used is still using the help of Microsoft excel application software that is semi computerized, so that every data reported often has errors in providing civil servant salaries. Based on these problems Tangerang District Education Office is in dire need of an automated computer system that can control the regular salary increases of civil servants effectively and efficiently. As a tool to help in object-oriented programming language, Unified Modeling Language (UML) is used to describe the system, while data collection techniques use observation, interview, and literature study methods, so that the system can be monitored properly, effectively and efficiently using MySql databases, and PHP. Keywords: Staffing, Periodic Salary Increase, Controlling, Web

Future benefits and applications of intelligent on-board processing to VSAT services

The trends and roles of VSAT services in the year 2010 time frame are examined based on an overall network and service model for that period. An estimate of the VSAT traffic is then made and the service and general network requirements are identified. In order to accommodate these traffic needs, four satellite VSAT architectures based on the use of fixed or scanning multibeam antennas in conjunction with IF switching or onboard regeneration and baseband processing are suggested. The performance of each of these architectures is assessed and the key enabling technologies are identified

Ensaio preliminar de sorgo granífero.

O objetivo deste trabalho foi o de testar 45 variedades de sorgo em Afrânio-PE, oriundos de uma seleção anterior realizada pelo Programa de Sorgo e Milheto-IPA-PE, em Serra Talhada. Foram incluidas 4 variedades já testadas na região, como controle, perfazendo um total de 49 repetições

Holographic optical trapping Raman micro-spectroscopy for non-invasive measurement and manipulation of live cells

We present a new approach for combining holographic optical tweezers with confocal Raman spectroscopy. Multiple laser foci, generated using a liquid-crystal spatial light modulator, are individually used for both optical trapping and excitation of spontaneous Raman spectroscopy from trapped objects. Raman scattering from each laser focus is spatially filtered using reflective apertures on a digital micro-mirror device, which can be reconfigured with flexible patterns at video rate. We discuss operation of the instrument, and performance and viability considerations for biological measurements. We then demonstrate the capability of the instrument for fast, flexible, and interactive manipulation with molecular measurement of interacting live cell systems

Political Change in the Digital Age: The Fragility and Promise of Online Organizing

We conclude that policymakers and scholars that have been most optimistic about the impact of digital tools have over-emphasized the role of information, specifically access to alternative and independent sources of information and unfiltered access to the Internet. We argue, in contrast, that more attention should be paid to the means of overcoming the difficulties of online organization in the face of authoritarian governments in an increasingly digital geopolitical environment

Is there any chlorine monoxide in the stratosphere?

A ground based search for the 856.50137/cm R(9.5) and for the 859.76765 R(12.5) transitions of stratospheric (Cl-35)O was made in the solar absorption mode using an infrared heterodyne spectrometer. Lines due to stratospheric HNO3 and tropospheric OCS were detected, at about 0.3% absorption levels. The expected lines of ClO in this same region were not detected, even though the optical depth of the ClO lines should be on the order of 0.2% using currently accepted ClO abundances. These infrared measurements suggest that stratospheric ClO is at least a factor of 7 less abundant than is indicated by indirect in situ fluorescence measurements, and the upper limit of 2.4x10 to the 13th power molecules/sq cm to the integrated column density of ClO is a factor of over 4 less than is indicted by microwave measurements. Results imply that the release of fluorocarbon precursors of ClO may be significantly less important for the destruction of stratospheric ozone than was previously thought

Resonances for "large" ergodic systems in one dimension: a review

The present note reviews recent results on resonances for one-dimensional quantum ergodic systems constrained to a large box. We restrict ourselves to one dimensional models in the discrete case. We consider two type of ergodic potentials on the half-axis, periodic potentials and random potentials. For both models, we describe the behavior of the resonances near the real axis for a large typical sample of the potential. In both cases, the linear density of their real parts is given by the density of states of the full ergodic system. While in the periodic case, the resonances distribute on a nice analytic curve (once their imaginary parts are suitably renormalized), In the random case, the resonances (again after suitable renormalization of both the real and imaginary parts) form a two dimensional Poisson cloud