Spartan Daily, March 7, 1944

Volume 32, Issue 95https://scholarworks.sjsu.edu/spartandaily/10900/thumbnail.jp

Calibration of CR-39 solid state nuclear track detector

Nowadays there are increasing uses of SSNTD on scientific works in Thailand. Currently we are using SSNTD as an important tool for confirming active fault zones in a province in which a new nuclear research reactor has been proposed to come up. Soil gas radon was measured by both active and passive methods. In the latter case CR-39 SSNTD was installed in a PVC tube of 50 cm long by 5 cm in diameter. The tubes were placed in 50-cm deep holes lining perpendicular to the faults’ trace for one week. In this paper we describe the method and the results on calibrating these detectors using a radon chamber and a NIST-traceable radium-226 standard source.Author Affiliation: P Wanabongse, B Sola, J Jamsangtong and S Rattanabussayaporn 1. Thailand Institute of Nuclear Technology, 16 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900, Thailand 2Department of Nuclear Technology, Chulalongkorn University, Payathai Road, Patoomwon Bangkok 10330, Thailand 3Office of Atoms for Peace, 16 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900, Thailand E-mail : [email protected] Institute of Nuclear Technology, 16 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900, Thailand 2Department of Nuclear Technology, Chulalongkorn University, Payathai Road, Patoomwon Bangkok 10330, Thailand 3Office of Atoms for Peace, 16 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900, Thailan

The Montana Kaimin, November 30, 1939

Student newspaper of the University of Montana, Missoula.https://scholarworks.umt.edu/studentnewspaper/10900/thumbnail.jp

La Cátedra Metrovalencia en Bellas Artes presenta la exposición "Libros Artísticos en un Metro de Colores"

Lugar: Estación Metro Colón ;Protagonistas:cátedra Metrovalencia ;Tipo de evento:exposiciónMartín García, S. (2011). La Cátedra Metrovalencia en Bellas Artes presenta la exposición "Libros Artísticos en un Metro de Colores". http://hdl.handle.net/10251/10900

Stress-rupture strength and microstructural stability of W-HF-C wire reinforced superalloy composites

W-Hf-C/superalloy composites were found to be potentially useful for turbine blade applications on the basis of stress-rupture strength. The 100-and 1000-hour rupture strengths obtained for 70 volume percent fiber composites tested at 1090 C were 420 and 280 MN/sq m (61,000 and 41,000 psi). The investigation indicated that with better quality fibers, composites having 100- and 1000-hour rupture strengths of 570 and 370 MN/sq m (82,000 and 54,000 psi) may be obtained. Metallographic studies indicated sufficient fiber-matrix compatibility for long time applications at 1090 C for 1000 hours or more

Evaluation of cermet materials suitable for lithium lubricated thrust bearings for high temperature operation

Cerment materials (HfC - 10 wt% W; HfC - 10 wt% TaC - 10 wt%W; HfC - 2 wt% CbC - 8 wt% Mo;Hfn - 10 wt% W; Hfn - 10 wt% TaN - 10 wt% W; and ZrC - 17 wt% W) were evaluated for possible use as lithium-lubricated bearings in the control system of a nuclear reactor. Tests of compatibility with lithium were made in T-111 (Ta-8W-2Hf) capsules at temperatures up to 1090 C. The tendencies of HfC-TaC-W, HfC-CbC-Mo, and HfN-W to bond to themselves and to the refractory alloys T-111 and TZM when enclosed in lithium-filled capsules under a pressure of 2000 psi at 980 and 1200 C for 1933 hours were evaluated. Thermal expansion characteristics were determined for the same three materials from room temperature to 1200 C. On the basis of these tests, HfC-10 TaC-10W and HfN-10W were selected as the best and second best candidates, respectively, of the materials tested for the bearing application

J/ψ(ηc)NJ/\psi (\eta_c) N and Υ(ηb)N\Upsilon (\eta_b) N cross sections

Inspired by the recent findings of the two $P_c^+$ states in the $J/\psi p$ mass spectrum at LHCb, we investigate the elastic and inelastic cross sections of the $J/\psi N$, $\eta_c N$, $\Upsilon N$ and $\eta_b N$ channels within the constraints from heavy quark spin and flavour symmetry. The $\bar{D}^{(*)} \Sigma_c^{(*)}$ ($B^{(*)} \Sigma_b^{(*)}$) bound states predicted in earlier works should be accessible in elastic and/or inelastic processes of the $J/\psi N$ and/or $\eta_c N$ ($\Upsilon N$ and/or $\eta_b N$) interactions.Comment: Minor correction

Catalog of Nearby Isolated Galaxies in the Volume z<0.01

We present a catalog of 520 most isolated nearby galaxies with radial velocities V_LG<3500 km/s covering the entire sky. This population of "space orphans" makes up 4.8% among 10900 galaxies with measured radial velocities. We describe the isolation criterion used to select our sample, called the "Local Orphan Galaxies" (LOG), and discuss their basic optical and HI properties. A half of the LOG catalog is occupied by the Sdm, Im and Ir morphological type galaxies without a bulge. The median ratio M_gas/M_star in the LOG galaxies exceeds 1. The distribution of the catalog galaxies on the sky looks uniform with some signatures of a weak clustering on the scale of about 0.5 Mpc. The LOG galaxies are located in the regions where the mean local density of matter is approximately 50 times lower than the mean global density. We indicate a number of LOG galaxies with distorted structures, which may be the consequence of interaction of isolated galaxies with massive dark objects

Enigma of EUS: consultation on epizootic ulcerative syndrome vis-à-vis the environment and the people, 25-26 May 1992, Institute of Management in Government, Vikas Bhavan, Trivandrum 695 033, Kerala, India. Summary of proceedings

In the last two decades a serious and severely damaging fish disease has been spreading through countries of the Asia Pacific region with dangerous consequences. Not only is this disease- now officially termed Epizootic Ulcerative Syndrome (EUS)- a scientific puzzle, it is also a worrisome social problem. Hundreds of inland fishermen, often the more marginalized amongst the fishworker communities in the affected countries, have been overnight deprived of their incomes, as consumers began to totally reject the disfigured, disease-stricken fish. It was in this context that the International Collective in Support of Fishworkers (ICSF), in co-operation with the Network of Aquaculture Centres in Asia-Pacific (NACA), Bangkok, organized a two-day consultation on " EUS vis-á-vis the Environment and the People" in Trivandrum, India, during 25 and 26 May 1992. Enigma of EUS is a report of the consultation. While it does not purport to be a verbatim account of the two-day deliberations, it does record the important issues raised, the experiences exchanged and shared, and suggests how grand conclusions about as enigmatic a disease as EUS are ultimately elusive