A novel approach for quality control system using sensor fusion of infrared and visual image processing for laser sealing of food containers

This paper presents a new mechatronic approach of using infrared thermography combined with image processing for the quality control of a laser sealing process for food containers. The suggested approach uses an on-line infrared system to assess the heat distribution within the container seal in order to guarantee the integrity of the process. Visual image processing is then used for quality assurance to guarantee optimum sealing. The results described in this paper show examples of the capability of the condition monitoring system to detect faults in the sealing process. The results found indicate that the suggested approach could form an effective quality control and assurance system

Biology and utilization of anadromous alosids: Annual progress report (October 1, 1969 - September 30, 1970)

This report is a completion report in the contractual sense, but progress report in the scientific sense. It includes the annual progress report on work accomplished during the period October l, 1969 and September 30, 1970 in addition to a summary of work done since the inception of the project in March, 1967

Investigation of potential for expansion of the industrial fishery of the Mid-Atlantic Bight : completion report of project Virginia 3-5-D

Winter and spring distribution of ground fishes of potential industrial use on the continental shelf between Cape May and Cape Hatteras Winter distribution of fishes, by Jackson Davis and Edwin B. Joseph. -- Spring distribution of fishes, by Jackson Davis and Edwin B. Joseph. -- Age and growth of the striped searobin, by John D. McEachran and Jackson Davis. -- Age and growth of the northern searobin, by Robert S.P. Wong. -- Age and growth of the spotted hake, by Charles A. Barans. -- Summer distribution of fishes, by Jackson Davis and Edwin B. Joseph. -- Assessment of availability, by Jackson Davis. -- Seasonal distribution of major species of demersal fishes in Chesapeake Bight, by J.A. Musick and J.D. McEachran. -- Autumn and winter occurrence of decapod crustaceans in Chesapeake Bight, U.S.A., by J.A. Musick and J.D. McEachran

Electronic states and optical properties of PbSe nanorods and nanowires

A theory of the electronic structure and excitonic absorption spectra of PbS and PbSe nanowires and nanorods in the framework of a four-band effective mass model is presented. Calculations conducted for PbSe show that dielectric contrast dramatically strengthens the exciton binding in narrow nanowires and nanorods. However, the self-interaction energies of the electron and hole nearly cancel the Coulomb binding, and as a result the optical absorption spectra are practically unaffected by the strong dielectric contrast between PbSe and the surrounding medium. Measurements of the size-dependent absorption spectra of colloidal PbSe nanorods are also presented. Using room-temperature energy-band parameters extracted from the optical spectra of spherical PbSe nanocrystals, the theory provides good quantitative agreement with the measured spectra.Comment: 35 pages, 12 figure

Source partitioning using stable isotopes: coping with too much variation.

Final published version of the article deposited in accordance with SHERPA RoMEO guidelinesStable isotope analysis is increasingly being utilised across broad areas of ecology and biology. Key to much of this work is the use of mixing models to estimate the proportion of sources contributing to a mixture such as in diet estimation

Zeta potential in oil-water-carbonate systems and its impact on oil recovery during controlled salinity water-flooding

Jackson was funded by the TOTAL Chairs Programme at Imperial College London, and Vinogradov through the TOTAL Laboratory for Reservoir Physics at Imperial College London.Peer reviewedPublisher PD

Quadrupole collective modes in trapped finite-temperature Bose-Einstein condensates

Finite temperature simulations are used to study quadrupole excitations of a trapped Bose-Einstein condensate. We focus specifically on the m=0 mode, where a long-standing theoretical problem has been to account for an anomalous variation of the mode frequency with temperature. We explain this behavior in terms of the excitation of two separate modes, corresponding to coupled motion of the condensate and thermal cloud. The relative amplitudes of the modes depends sensitively on the temperature and on the frequency of the harmonic drive used to excite them. Good agreement with experiment is found for appropriate drive frequencies.Comment: 4 pages, 3 figure