424 research outputs found
Mongolia's National Security Challenges
Mongolian Journal of International Affairs Vol.2 1995: Â 3-1
Optimizing Handover of As-Built Data Using BIM for Highways
An efficient maintenance of the UK’s transportation network is of critical importance to the
country’s economy and among the top priorities of the government and public agencies (e.g.
Network Rail, Highways England). The public transportation agencies have huge data sets
related to asset management and maintenance. However, those data sets are usually held in
disparate platforms and have been historically developed using multiple standards and
formats. As a result, full value of such data is often not fully realized. Effective management
of asset data and availability of reliable information as and when needed, could bring in key
benefits for effective management of the transportation network. This paper aims to present
the initial findings of a research effort understanding the potential of Building Information
Modelling (BIM) in handover processes for a more efficient maintenance of highways
assets, and discuss the way forward. The research methodology applied is systematic
literature review and two recent best practice cases in the Highways Sector. The research
findings suggest that efficient data management through BIM could provide a structured
framework to improve asset handover and maintenance. However, it is important to capture
the current handover practices between the construction and maintenance phase, and
maintenance processes in the UK’s highways sector, both of which seem to be absent in the
literature at the moment
Scalar Quarkonia at Finite Temperature
Masses and decay constants of the scalar quarkonia, with
quantum numbers are calculated in the framework of
the QCD sum rules approach both in vacuum and finite temperature. The masses
and decay constants remain unchanged up to but they start to
diminish with increasing the temperature after this point. At near the critic
or deconfinement temperature, the decay constants reach approximately to 25% of
their values in vacuum, while the masses are decreased about 6% and 23% for
bottom and charm cases, respectively. The results at zero temperature are in a
good consistency with the existing experimental values and predictions of the
other nonperturbative approaches. Our predictions on the decay constants in
vacuum as well as the behavior of the masses and decay constants with respect
to the temperature can be checked in the future experiments.Comment: 12 Pages, 9 Figures and 2 Table
VACCINATION PRACTICES OF ADULT FAMILIAL MEDITERRANEAN FEVER PATIENTS IN TURKEY.
[Abstract Not Available
Strategy to find the two states from lattice QCD simulations
Theoretical studies within the chiral unitary approach, and recent
experiments, have provided evidence of the existence of two isoscalar states in
the region of the . In this paper we use the same chiral
approach to generate energy levels in a finite box. In a second step, assuming
that these energies correspond to lattice QCD results, we devise the best
strategy of analysis to obtain the two states in the infinite volume case, with
sufficient precision to distinguish them. We find out that using energy levels
obtained with asymmetric boxes and/or with a moving frame, with reasonable
errors in the energies, one has a successful scheme to get the two
poles.Comment: Published version (more discussions added based on referee's
suggestions, giving rise to a new section: IV
Effects of different levels of dietary zinc supplementation on the testis parameters of the Japanese quail males
This study was conducted in poultry farm of Agriculture College, University of Anbar, Iraq to assess the effects of different levels of zinc as dietary supplementation in volume density and relative weight of Japanese quail, Coturnix japonica testis contents. Sixty males of 35 day-olds were used in this study. Quails distributed randomly in four treatments and three replicates, each including 5 males. Birds fed balanced diets contain four levels of metal zinc as: T1: control diet without any addition of zinc; T2: diet by adding 25 mg kg-1; T3: 50 mg kg-1; and T4: 75 mg kg-1. Males were slaughtered at 147th day-old then testes weight, testes relative weight, seminiferous tubules, interstitial cells volume density and relative weights (mg g-1) as well as diameters of seminiferous tubules were measured. Results exhibited no significant differences in testis weight and relative weights in all treatments compared to control group. Significant elevation (p < 0.0001) in volume density of spermatogonia was observed in T3 and T4. Significant differences (p < 0.0001) was found in volume density of spermatocytes in all treatments. There was also significant increasing (p < 0.1433) in total sperm contents in T4. Data refers to significant rise (p < 0.0024) in relative weight of spermatogonia in T3, and also significant elevation (p < 0.0453) in volume density of spermatocytes in T3 and T4
Gamma ray and neutron radiation effects on the electrical and structural properties of n-ZnO/p-CuGaO2 schottky diode
This research focuses on the radiation tolerance of ZnO and CuGaO2 based semiconductor application for space borne application. In this research, n-ZnO/p-CuGaO2 based semiconductor devices were fabricated and exposed to gamma rays with increasing total ionizing dose (TID) and neutron fluence at different flux. Based on the I-V properties, the decrease in the turn-on voltage of the diode is noticeable with increasing radiation dose for both gamma and neutron flux exposure. The maximum turn-on-voltage of the fabricated diode was shown to be 1.5 V. Exposure towards gamma, shows that the turn-on is increased to 4.7 V at 200 kGy. However, the effect of neutron flux at 6.5 × 1015 n cm−2 shows a small significant effect on the turn on voltage of 1.7 V after irradiation. Results show moderate mitigation towards irradiation, indicating that n-ZnO/p-CuGaO2 thin film is capable of withstanding harsh radiation environment while still retaining its semiconductor as the changes in band gap ranges between 3 eV to 4 eV at post-irradiation
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