نتایج جستجو برای: tungsten ore

تعداد نتایج: 21214  

2006
J. P. Marques F. Parente M. C. Martins P. Indelicato

Lβ2 X-ray satellite spectra of tungsten and gold are calculated using the Multi-Configuration Dirac-Fock energies and compared with recent experimental data. New calculations of L1-L3M5 Coster-Kronig transition energies for tungsten are presented, confirming the origin of the Lβ2 visible satellites reported by two experimental groups. We found the value 5.09 eV for the average energy of the L1-...

Journal: :international journal of mining and geo-engineering 0
omid asghari ut fatemeh amirpoursaeid simulation and data processing laboratory, school of mine engineering, college of engineering, university of tehran

truncated gaussian simulation (tgs) is a well-known method to generate realizations of the ore domains located in a spatial sequence. in geostatistical framework geological domains are normally utilized for stationary assumption. the ability to measure the uncertainty in the exact locations of the boundaries among different geological units is a common challenge for practitioners. as a simple a...

Journal: :dental research journal 0
sogra yassaei hossein aghili neda joshan

background: at the end of fi xed orthodontic treatment, the remnant of adhesive should be eliminated from the tooth surface. the purpose of this study was to compare the effect of three methods of removing adhesive on enamel surface roughness, dental pulp t emperature, and also on the time spent. materials and methods: the brackets on 90 extracted teeth were debonded using bracket removal plier...

2016
Daiane Cobianchi Costa Alessandra Arruda Schinaider Thais Mattos Santos Everaldo José Schörner Daniel Simon Sharbel Weidner Maluf Ana Carolina Rabello de Moraes Maria Claudia Silva Silva

P mparison with Brazilian populations. The genotypes RHCE*Ee, K ore prevalent in the population from the state of Santa Catarina i *Cc, RHCE*cc, RHCE*ee, FY*01/FY*02, FY*01/FY*02.N01, FY*02/FY*02, F ypes were more common in the population from the state of S erved in the comparison with Brazilian populations. The genot JK*02/02 were more prevalent in the population from the state of S ddition, ...

2015
Diego dos Ramos Diego dos Ramos Nunes Waldyr Lopes de Oliveira Filho José Margarida Silva

In the search for opportunities to decrease operational costs in iron ore mining, waste disposal by conveyor belt has been considered as an alternative. In this work, this form of waste dump is investigated by means of the construction of a test pile and the assessment of geotechnical characteristics such as shear strength and in situ densities. Results were compared with two other dumps built ...

2003
Alvin H. Moss Sara N. Davison

● 1-year unadjusted, all incident patients: 78%. ● 5-year unadjusted, all incident patients: 33%. ● 10-year unadjusted, all incident patients: 9%. ● Survival comparable or worse than patients with many types of cancer. ● Increasing number of incident patients with worse survival (median age, 64.5 years for incident patients in US Renal Data System [USRDS] Annual Data Report 2003). ● Younger pat...

2003
P. O’Shaughnessy B. W. Lee

The practice of manganese ferroalloy smelting has traditionally been based on utilising oxide ores which typically contain a high level of manganese. This preference for oxides has even been extended to the modification of natural carbonates into nodulized oxides. However smelting practices developed over the past 30 years have created a market for natural manganese carbonate ores, driven in pa...

Journal: :IACR Cryptology ePrint Archive 2016
David Cash Feng-Hao Liu Adam O'Neill Cong Zhang

We study practical order-revealing encryption (ORE) with a well-defined leakage profile (the information revealed about the plaintexts from their ciphertexts), a direction recently initiated by Chenette, Lewi, Weis, and Wu (CLWW). ORE, which allows public comparison of plaintext order via their ciphertexts, is a useful tool in the design of secure outsourced database systems. We first show a ge...

Journal: :Journal of immunology 2010
Ryoji Kojima Hajime Taniguchi Aya Tsuzuki Kanako Nakamura Yumi Sakakura Mikio Ito

MCP1 is upregulated by various stimuli, including LPS, high glucose, and hyperosmolality. However, the molecular mechanisms of transcriptional regulation of the MCP1 gene under hyperosmolar conditions are poorly understood. Treatment of NRK52E cells with NaCl or mannitol resulted in significant elevation of MCP1 mRNA and protein in a time- and dose-dependent manner. Treatment with a p38MAPK inh...

Introduction One of the best methods in the diagnosis and control of breast cancer is mammography. The importance of mammography is directly related to its value in the detection of breast cancer in the early stages, which leads to a more effective treatment. The purpose of this article was to calculate the X-ray spectrum in a mammography system with Monte Carlo codes, including MCNPX and MCNP5...

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