Status of Ferro Alloy Industry in the Liberalised Economy

I wish you a very good morning and look forward to a very interesting and frank exchange of ideas during the next two days for the benefit of the FERRO ALLOYS INDUSTRY in our country. I consider it a great honour and privilege that the National Metallurgical Laboratory and Jamshedpur chapter of Indian Institute of Metals have given me this opportunity to present the Inaugural Address at the National workshop on "The Status of Ferro Alloys Industry in the Liberalised Economy"

Does Long-Term Macrophyte Management in Lakes Affect Biotic Richness and Diversity?

We hypothesize that the richness and diversity of the biota in Lake Moraine (42°50’47”N, 75°31’39”W) in New York have been negatively impacted by 60 years of macrophyte and algae management to control Eurasian watermilfoil ( Myriophyllum spicatum L.) and associated noxious plants. To test this hypothesis we compare water quality characteristics, richness and selected indicators of plant diversity, zooplankton, benthic macroinvertebrates and fish in Lake Moraine with those in nearby Hatch Lake (42°50’06”N, 75°40’67”W). The latter is of similar size and would be expected to have similar biota, but has not been subjected to management. Measurements of temperature, pH, oxygen, conductivity, Secchi transparency, calcium, total phosphorus and nitrites + nitrates are comparable. Taxa richness and the diversity indices applied to the aquatic macrophytes are similar in both lakes. (PDF has 8 pages.

Problems and Prospects of carbonaceous reducing agents in ferro alloys production

The paper emphasizes the need for development of special carbon reductants for ferroalloy production. Various physical and chemical properties desired for the carbon-aceous reductants are discussed as compared to their present availability and usage in ferro-alloy production. Establishment of LTC coke plant based on washed coals and production of formed coke should be considered to meet the requirement of ferro-alloy industry. Washed coal with low phosphorus and ash contents will not only help in producing quality ferro alloys but also contribute to energy conservation measures

A Strategy for utilisation of low grade high phosphorus manganese ores in the production of high carbon ferro manganese

A two step process is outlined to utilise low grade high phosphorus ores containing Mn 31-35%, Fe 11-13%, S102 8-10%, P 0.35% to 0.5%, whereby in the first step, smelting is carried out in an Electric furnace to produce High MnO containing slag with equivalent Mn 45 to 50% which can be used as synthetic high grade ore and is almost free from phosphorus and iron.The metal obtained is "Spiegeleisen" containing 14 to 18% Mn and 1.5 - 2.0% phosphorus. In the second step the high manganese slag from the first step is blended with additional quantities of low and medium grade manganese ores and smelled to produce high grade High carbon ferro manganese and a discard slag containing about 16.0% Mn. The smelting trials carried out at FACOR is briefly mentioned

Fighting HIV/AIDS: Reconfiguring the State?

The author wishes to thank the anonymous reviewers of the article and the ESRC for funding part of this research

Access to improve the muon mass and magnetic moment anomaly via the bound-muon gg factor

A theoretical description of the $g$ factor of a muon bound in a nuclear potential is presented. One-loop self-energy and multi-loop vacuum polarization corrections are calculated, taking into account the interaction with the binding potential exactly. Nuclear effects on the bound-muon $g$ factor are also evaluated. We put forward the measurement of the bound-muon $g$ factor via the continuous Stern-Gerlach effect as an independent means to determine the free muons magnetic moment anomaly and mass. The scheme presented enables to increase the accuracy of the mass by more than an order of magnitude

X-ray fluorescence spectrum of highly charged Fe ions driven by strong free-electron-laser fields

The influence of nonlinear dynamical effects is analyzed on the observed spectra of controversial 3C and 3D astrophysically relevant x-ray lines in neonlike Fe${}^{16+}$ and the A, B, C lines in natriumlike Fe${}^{15+}$ ions. First, a large-scale configuration-interaction calculation of oscillator strengths is performed with the inclusion of higher-order electron-correlation effects. Also, quantum-electrodynamic corrections to the transition energies are calculated. Further considered dynamical effects provide a possible resolution of the discrepancy between theory and experiment found by recent x-ray free-electron-laser measurements of these controversial lines. We find that, for strong x-ray sources, the modeling of the spectral lines by a peak with an area proportional to the oscillator strength is not sufficient and nonlinear dynamical effects have to be taken into account. Thus, we advocate the use of light-matter-interaction models also valid for strong light fields in the analysis and interpretation of the associated astrophysical and laboratory spectra. We investigate line-strength ratios distinguishing between the coherent and incoherent parts of the emission spectrum. In addition, the spectrum of Fe${}^{15+}$, an autoionizing ion which was also present in the recent laboratory experiment, is also analized

Facile Si–H bond activation and hydrosilylation catalysis mediated by a nickel–borane complex

Metal–borane complexes are emerging as promising systems for study in the context of bifunctional catalysis. Herein we describe diphosphineborane nickel complexes that activate Si–H bonds and catalyze the hydrosilylation of aldehydes. Treatment of [^(Mes)DPB^(Ph)]Ni (1) ([^(Mes)DPB^Ph] = ^(Mes)B(o-Ph_2PC_6H_4)_2) with organosilanes affords the complexes [^(Mes)DPB^(Ph)](μ-H)NiE (E = SiH_2Ph (3), SiHPh_2 (4)). Complex 4 is in solution equilibrium with 1 and the thermodynamic and kinetic parameters of their exchange have been characterized by NMR spectroscopy. Complex 1 is a catalyst for the hydrosilylation of a range of para-substituted benzaldehydes. Mechanistic studies on this reaction via multinuclear NMR spectroscopy are consistent with the intermediacy of a borohydrido-Ni-siloxyalkyl species

Testing standard-model extensions with isotope shifts in few-electron ions

When collecting spectroscopic data on at least four isotopes, nonlinearitiesin the King plot are a possible sign of Physics beyond the Standard Model. Inthis work, an improved approach to the search for hypothetical new interactionswith isotope shift spectroscopy of few-electron ions is presented. Very carefulaccount is taken of the small nuclear corrections to the energy levels and thegyromagnetic factors, which cause deviations from King linearity within theStandard Model and are hence a possible source of confounds. In this newapproach, the experimental King nonlinearity is not compared to the vanishingprediction of the Standard Model at the leading order, but to the calculatedfull Standard Model contribution to King nonlinearity. This makes searching forbeyond-the-Standard-Model physics with King linearity analysis possible in avery-high-precision experimental regime, avoiding confounds. The bounds whichcan be set on beyond-the-Standard-Model parameters remain limited by theuncertainties on the small Standard Model nuclear corrections which cause Kingnonlinearity. Direct comparison between theory and experiment on a single pairof isotopes is advocated as a more suitable approach for few-electron ions.<br

Thermoelectric three-terminal hopping transport through one-dimensional nanosystems

A two-site nanostructure (e.g, a "molecule") bridging two conducting leads and connected to a phonon bath is considered. The two relevant levels closest to the Fermi energy are connected each to its lead. The leads have slightly different temperatures and chemical potentials and the nanos- tructure is also coupled to a thermal (third) phonon bath. The 3 x 3 linear transport ("Onsager") matrix is evaluated, along with the ensuing new figure of merit, and found to be very favorable for thermoelectric energy conversion.Comment: Accepted by Phys. Rev.