Physical Sciences and Mathematics Commons^™

Astronomy Matters For Chemistry Teachers, Terry Smith, Jay Huebner, Robert Vergenz

Jay S Huebner

The purpose of this paper is to encourage more chemistry teachers to become familiar with some of the basic ideas described in typical introductory astronomy courses (1 - 9), including those about the origin of elements and forms of matter. These ideas would enrich chemistry courses and help resolve some basic misconceptions that are expressed in many introductory texts (10 - 16) and journal articles for chemistry teachers (17, 18). These misconceptions are typified by statements such as "we can classify all substances as either elements or compounds," and "nature has provided 92 elements out of which all matter is …

Emisja Zanieczyszczeń Ze Spalania Odpadów Ściekowych W Piecu Półkowym, Robert Oleniacz, Marian Mazur, Marek Bogacki

Robert Oleniacz

The article presents incineration tests of silty-tar sludge produced in the wastewater treatment plant for coke industry. Sewage sludges were incinerated in a full-scale multiple hearth incinerator equipped with a wet flue-gas cleaning system (alkaline scrubber). Measurements of air pollutant emissions were carried out both before and after the cleaning system. The obtained results allow to conclude that the thermal utilization of sewage sludge in this type of installation might be just a little cumbersome for the environment, using the appropriate equipment for the purification of exhaust gases. The paper also specifies minimum exhaust gas cleaning performance that guarantees compliance …

Wdrażanie Monitoringu Zanieczyszczeń Powietrza Atmosferycznego W Kielcach, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

Assumptions for regional environmental monitoring in the province of Kielce were developed as early as 1992. Since the beginning of particular attention were monitoring the air. The article presents the next step in the implementation of this monitoring, associated with verification of the location and the measuring range of points to measure the concentrations of air pollutants in Kielce. As a result of analysis and calculations, it was found that the original location is not always correct and does not reflect the spatial differentiation of pollutant concentrations. The proposed changes in the position of monitoring points or measurement methods were …

Zastosowanie Metody Obliczeniowo-Pomiarowej Do Oceny Stanu Zanieczyszczenia Powietrza W Nowym Sączu, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

Assessment of the state of air pollution in the urban area is a difficult and complex task. Depending on the method of assessment the procedure requires a comprehensive research and calculations of air emissions from all sources occurring in the area and the use of atmospheric dispersion models or large-scale implementation of direct measurements of air pollutant concentrations. Both of these methods may also be applied simultaneously to their mutual verification.

The article presents the results of such a comprehensive assessment of air pollution on the example of the city of Nowy Sacz (Poland). This involved determining the emissions of …

Obliczanie Emisji Par Węglowodorów Z Przemysłu Rafineryjnego, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

The negative effects of the refining industry for ambient air quality is mainly related to emissions of hydrocarbon vapors. Calculation methodology and estimates, the level of emissions from several years has been the research subject of many institutions and environmental agencies, including The Oil Companies’ European association for health, safety and environment in refining and distribution (CONCAWE) and American Petroleum Institute (API).

The article describes the main sources of emissions of hydrocarbons occurring in a typical refinery. In summary form also shows how to calculate the volume of a mixture of hydrocarbons emissions from these sources based on empirically validated …

Badania Emisji Chlorowodoru I Związków Fluoru Podczas Spalania Odpadów Niebezpiecznych, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

The paper presents the results of measurements of the concentration of hydrogen chloride (HCl) and fluoride compounds (as HF) in raw and purified combustion gases discharged from the incineration of selected hazardous wastes. The study included two installations operating on an industrial scale: a multiple hearth furnace and a rotary kiln incinerator equipped with a single wet flue gas cleaning systems. In the multiple hearth furnace was being incinerated sludge from coke industry. In the rotary kiln were being incinerated coal (coke) tars, contaminated cleaning rags, sawdust, used gloves, outdated pharmaceuticals and medicines, hospital waste, waste paints, varnish and lubricant, …

Emisja Zanieczyszczeń Ze Spalania Odpadów Farmaceutycznych I Poszpitalnych W Piecu Obrotowym, Robert Oleniacz, Marian Mazur, Marek Bogacki

Robert Oleniacz

The work presents the problem of management and thermal treatment of medicines and hospital wastes and investigation results of incineration of these waste in the full-scale rotary kiln with wet gas cleaning equipment (alkaline scrubber). On the basis of measurements of air pollutant concentrations in combustion gases, maximum dose of these wastes in the feed to the kiln was specified in order to ensure a relatively low stack emissions using the hypothetical high-efficiency flue-gas treatment system.

English title: Pollutant emissions from incineration of pharmaceutical and hospital waste in a rotary kiln.

Emisja Zanieczyszczeń Ze Spalania Odpadów Przemysłowych W Piecu Obrotowym, Robert Oleniacz, Marian Mazur, Marek Bogacki

Robert Oleniacz

The paper presents the results of measurements of the concentration of selected pollutants in the flue gases from the incineration of industrial wastes in a full-scale rotary kiln. The study included three waste mixtures introduced into the kiln: 1) coal tar waste (tar origin of coke); 1) waste paints, varnish and lubricant; 3) resin and rubber waste. The article also assesses the effectiveness of the existing wet flue gas cleaning system (alkaline scrubber) and specifies minimum exhaust gas purifying performance guarantees compliance with European emission standards for waste incineration.

English title: Pollutant emissions from incineration of industrial waste in a …

Coarsening And Persistence In The Voter Model, E. Ben-Naim, L. Frachebourg, P.L. Krapivsky

Eli Ben-Naim

No abstract provided.

Auroral Electrojet Irregularity Theory And Experiment: A Criticalreview Of Present Understanding And Future Directions, J. D. Sahr, Bela G. Fejer

Bela G. Fejer

We review the experimental observations of meter scale plasma irregularities in the auroral E region and the status of their theoretical understanding. Most of the experimental data is derived from VHF radar scatter experiments, but sounding rockets also provide crucial information not obtainable from radars. Linear theories correctly predict the altitude of occurence, strong magnetic aspect sensitivity, marginal instability, and typical phase velocities. Subsequent nonlinear theories have been developed to account for other observed features but with less satisfying application. Further understanding of auroral electrojet irregularities is impeded by precision limitations of existing instruments, by radar data which may seem …

International Symposium On Macromolecular Architecture, Otto Vogl, Jane C. Vogl, Tatsuki Kitayama

Otto Vogl

No abstract provided.

Polymer Science In Vietnam, Otto Vogl, Dang Van Luyen, Dang Mai-Huong

Otto Vogl

No abstract provided.

45. Minoru Imoto, Otto Vogl, Tatsuro Ouchi

Otto Vogl

No abstract provided.

Emisja Związków Siarki Z Procesu Wielkopiecowego, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

The paper describes the problem of the presence of sulfur in the blast furnace process and identifies emission sources of sulfur compounds in this process. On the basis of the measurements and calculations, the types and quantities of these compounds emitted to the air were determined. It was found that pig iron smelting in a blast furnace causes emissions of COS, SO2 and H2S. These emissions occur by losses of blast furnace gas (COS and SO2), transport of blast furnace slag inside the furnace hall (SO2) and treatment of the slag by granulation (H2S). However, the most important are only …

Wpływ Komponentów Alkalicznych W Procesach Spiekania I Wielkopiecowym Na Technologię I Emisję Zanieczyszczeń, Marian Mazur, Ryszard Benesch, Andrzej Łędzki, Robert Oleniacz

Robert Oleniacz

The paper presents the impact of alkali metals on sintering and blast furnace processes and air pollutant emissions including particulate matter. On the basis of the balance calculations, it was found that the main source of alkali (Na2O and K2O) in the sintering process is a raw mixture unweathered. The calculations showed that the level of dust emissions from the sinter strand to a large extent depends on: the total alkali content in a mixture of sinter, ash content in coke breeze, K2O concentration in coke ash and alkalinity of the produced sinter. Alkali metals are introduced into the blast …

Out Of Focus, John C. Dernbach

John C. Dernbach

No abstract provided.

Quantitative Structure-Activity Relationships For Polychlorinated Hydroxybiphenyl Estrogen Receptor Binding Affinity: An Assessment Of Conformer Flexibility, Steven P. Bradbury, Ovanes G. Mekenyan, Gerald T. Ankley

Steven P. Bradbury

A diverse group of xenobiotics has a high binding affinity to the estrogen receptor (ER), suggesting that it can accommodate large variability in ligand structure. Relationships between xenobiotic structure, binding affinity, and estrogenic response have been suggested to be dependent on the conformational structures of the ligands. To explore the influence of conformational flexibility on ER binding affinity, a quantitative structure—activity relationship (QSAR) study was undertaken with estradiol, diethylstilbestrol, and a set of polychlorinated hydroxybiphenyls (PCHBs) of environmental concern. Although the low-energy minima of the PCHB congeners suggested that interconversions among conformers were likely, the electronic parameters associated with the …

46. Milan Lazar, Otto Vogl, Lyda Rychla

Otto Vogl

No abstract provided.

Polymer Science In Croatia, Otto Vogl, Franjo Flajsman, Zvonomir Janovic, Helena Jasna Mencer

Otto Vogl

No abstract provided.

International Symposium On Ionic Polymerization, Istanbul, Turkey, Otto Vogl, Yusuf Yagci

Otto Vogl

No abstract provided.

Electrochemistry Of C82: Relationship To Metallofullerene Electrochemistry, Paul Burbank, James Gibson, Harry Dorn, Mark Anderson

Mark R. Anderson

Square-wave voltammetry of C82 in pyridine solutions containing 0.10 M tetra-n-butyl ammonium perchlorate indicates that C82 is reduced in four one-electron steps prior to the onset of electrolyte decomposition. The first reduction occurs at potentials positive of the reported first reduction potentials of other empty cage fullerenes, and at approximately the same reported potential for the first reduction of the endohedral metallofullerenes La@C82 and Y@C82. No oxidations were observed for the C82 under these conditions.

Frozen Disorder In A Driven System, Beate Schmittmann, K. E. Bassler

Beate Schmittmann

We investigate the effects of quenched disorder on the universal properties of a randomly driven Ising lattice gas. The Hamiltonian fixed point of the pure system becomes unstable in the presence of a quenched local bias, giving rise to a new fixed point which controls a novel universality class. We determine the associated scaling forms of correlation and response functions, quoting critical exponents to two-loop order in an expansion around the upper critical dimension dc=5.

Jual Obat Aborsi Di Bali Langsung Tuntas ( Call : 0855 7636 186)-Antar Gojek, Ibnu Suab

ibnu suab

Fourth Pacific Polymer Conference: Koloa, Kauai, Otto Vogl, Jane C. Vogl

Otto Vogl

No abstract provided.

47. Zbigniew Jedlinski, Otto Vogl

Otto Vogl

No abstract provided.

Murnaghan-Nakayama Rules For Characters Of Iwahori-Hecke Algebras Of Classical Type, Thomas Halverson, A. Ram

Thomas M. Halverson

No abstract provided.

Monitoring Zanieczyszczeń Powietrza Wokół Elektrowni "Jaworzno Iii", Marian Mazur, Robert Oleniacz, Marek Bogacki, Ryszard Kozakiewicz

Robert Oleniacz

The article presents the concept of system of monitoring of air pollution around the Power Plant "Jaworzno III" in Jaworzno (Poland), whose objective is to evaluate the impact of this object on air quality. This system is based on a few measuring points and a mobile station should also allow for the assessment of ecological effects associated with the use of low-emission burners in power boilers (reduction of NOx emission) and run the wet installation of flue gas desulfurization (reduction of SO2 emission). An additional aim of the measurements is to identify the possible effects of a changes in the …

Kompleksowa Ocena Jakości Powietrza W Nowym Sączu Przy Pomocy Metody Obliczeniowo-Pomiarowej, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

The paper presents the results of a comprehensive assessment of air pollution in the city of Nowy Sącz (Poland). This involved determining the emissions of selected pollutants from various sources with their percentages of the total emission and immission on the area under consideration. As a result of measurement of concentrations of particulate matter and benzo(a)pyrene in several parts of the city were verified results of theoretical calculations and determined the size of the inflow of pollutants from outside the area in question.

English title: A comprehensive assessment of air quality in Nowy Sącz using computational and measuring methods.

Prognozowanie Wpływu Motoryzacji Na Poziom Stężenia Ozonu W Przyziemnej Warstwie Atmosfery, Marek Bogacki, Marian Mazur, Robert Oleniacz

Robert Oleniacz

The paper presents an approach for assessing the impact of road transport on the level of ozone concentrations in the ground layer of the atmosphere. The developed method consists in emission inventory on the analyzed area for road transport and calculations using the model of chemical reactions in the troposphere.

Using this method it is possible to display waveforms daily ozone concentrations in the air, and evaluate the effectiveness of the decisions related to the prevention of occurrence of photochemical smog in urban and industrial agglomerations.

English title: Predicting the impact of motoring on the level of ozone concentration in …

Observationsof Inner-Plasmasphere Irregularities With A Satellite Beacon Interferometer Array, A. R. Jacobsen, G. Hogeveen, R. C. Carlos, G. Wu, Bela G. Fejer, M. C. Kelley

Bela G. Fejer

A radio-interferometer array illuminated by 136-MHz beacons of several geosynchronous satellites has been used to study small (≥ 1013 m−2) transient disturbances in the total electron content along the lines of sight to the satellites. High-frequency (ƒ> 3 mHz) electron content oscillations are persistently observed, particularly during night and particularly during geomagnetically disturbed periods. The oscillations move across the array plane at speeds in the range 200–2000 m/s, with propagation azimuths that are strongly peaked in lobes toward the western half-plane. Detailed analysis of this azimuth behavior, involving comparison between observations on various satellite positions, indicates compellingly that the phase …