Physical Sciences and Mathematics Commons^™

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 …

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 …

Ecological Economics: Reintegrating The Study Of Humans And Nature, Robert Costanza

Institute for Sustainable Solutions Publications and Presentations

Ecological economics is a transdisciplinary effort to link the natural and social sciences broadly, and especially ecology and economics. The goal is to develop a deeper understanding of the complex linkages between ecological and economic systems, and to use that understanding to develop effective policies that will lead to a world that is ecologically sustainable, has a fair distribution of resources (both among groups and generations of humans and between humans and other species), and efficiently allocates scarce resources including natural capital. This will require new approaches that are comprehensive, adaptive, integrative, multi-scale, and pluralistic, and that acknowledge the huge …

Center For Sustainable Agricultural Systems Newsletter, November/December 1996

Center for Sustainable Agricultural Systems -- Newsletters 1993-2000

Contents:

Nebraska IMPACT Project Update

North Central Region Evaluates Sustainable Agriculture Training

Annual Meetings in Nebraska to Showcase Innovative Strategies for Successful Farming

Integrated Farm Update: To Graze or Not to Graze?

USDA Announces Policy Directive Committing Agency to Sustainable Ag

Transformation of Land Grant Universities

Food Circles: A Bioregional Approach

Fund for Rural America

Ag Production and Nutrition Conference

Richard Olson Named Presidential Fellow

The Probe, Issue 171 – November 1996

The Probe: Newsletter of the National Animal Damage Control Association

Park Service Thwarts Cat Allies, by Marilyn Davis, Native Species Network, Bodega Bay, California
Jim Miller Elected VP of Wildlife Society
ADC Aerial Hunting Accident Kills 2
Obituary: Carl R. Gustavson
HSUS Former Employee File Lawsuits
Rats Shut Down Internet at Stanford
Call for Papers: A Symposium on Mammal Trapping August 1997 in Edmonton, Alberta
Fur in Cyberspace: The Fur Institute of Canada announces it has established a site on the World Wide Web, at the following address: http://www.fur.ca.
Book Review: Beaver and Otter: Open Water Techniques, by Charles Dobbins 1992. Beaver Pond Publishing and Printing, P.O. Box 224, Greenville, …

แนะนำโครงการ : โครงการการศึกษาผลกระทบสิ่งแวดล้อมของการก่อสร้างพิพิธภัณฑ์สถานแห่งชาติไดโนเสาร์ ภูกุ้มข้าว จังหวัดกาฬสินธุ์, ลือชัย ครุธน้อย

Environmental Journal

No abstract provided.

รายงานสิ่งแวดล้อม : "ฟินิคซ พัลพ" อุตสาหกรรมกับปัญหาสิ่งแวดล้อมชุมชน, อ้อย พันธเดช

Environmental Journal

No abstract provided.

การป้องกันมลพิษ - ยุทธศาสตร์ใหม่ของการรักษาคุณภาพสิ่งแวดล้อม, ธีรพล คังคะเกตุ

Environmental Journal

No abstract provided.

แผ่นทำความสะอาดมลพิษทางอากาศ, จันทรา ทองคำเภา

Environmental Journal

No abstract provided.

สัมภาษณ์พิเศษ: ดร.เกษมสันติ์ สุวรรณรัต รองผู้อำนวยการสำนักงานนโยบายและ แผนกรุงเทพมหานคร

Environmental Journal

No abstract provided.

การใช้ไม้สักสร้างเส้นปริมาณน้ำฝนและอุณหภูมิในอดีต, นาฏสุดา ภูมิจำนงค์

Environmental Journal

No abstract provided.

จับตากฎหมายใหม่ : ระเบียบสำนักนายกรัฐมนตรีว่าด้วยการรับฟังความคิดเห็นสาธารณะโดยวิธีประชาพิจารณ์ พ.ศ. 2539, อุษณีย์ ศิริสุนทรไพบูลย์

Environmental Journal

No abstract provided.

โลกเขียวด้วยฉลากเขียว, เชิดพันธ์ สุคนธ์พงษ์เผ่า

Environmental Journal

No abstract provided.

ธุรกิจสิ่งแวดล้อม : "กองทุนสีเขียว" อุตสาหกรรมควบคู่สิ่งแวดล้อม, อ้อย พันธเดช

Environmental Journal

No abstract provided.

Directory Of Water Related Courses Offered At Colleges And Universites In Arkansas, Kenneth F. Steele

Technical Reports

This publication lists the water and water-related courses at several universities and colleges in Arkansas as reported during the Fall of 1996. It Is anticipated that users of this directory will extend beyond college students, and will include professionals seeking continuing education, and professors desiring to exchange information on courses. This directory is not an "absolute" source of water and water-related courses because all of the higher learning institutions in Arkansas are not listed, and, secondly, because the definition of "water and water-related" varies from institution to institution. None-the-less this directory provides a very valuable and impressive reference on water …

Public Beach Assessment Report Gloucester Point Public Beach, Gloucester County, Virginia, Donna A. Milligan, C. Scott Hardaway Jr., George R. Thomas

Reports

Gloucester Point Public Beach is located at the southern end of Gloucester County, Virginia on the York River. It is a southeastward facing shoreline about 960 ft long and it is part of a larger stretch of moderately low shore between Sarah Creek and the George P. Coleman Bridge. While no shoreline improvement projects have taken place at the public beach, shore protection projects updrift and including the Virginia Institute of Marine Science (VIMS) affect it. In 1983, erosion along the shoreline at VIMS just updrift of the public beach led to the installation of a riprap revetment in front …

Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1995, Robert J. Orth, Judith F. Nowak, Gary F. Anderson, David J. Wilcox, Jennifer R. Whiting, Leah S. Nagy

Reports

No abstract provided.

Public Beach Assessment Report Yorktown Public Beach, Yorktown, Virginia, Donna A. Milligan, C. Scott Hardaway Jr., George R. Thomas

Reports

No abstract provided.

กิจกรรมสิ่งแวดล้อม

Environmental Journal

No abstract provided.

สรุปข่าวสิ่งแวดล้อม

Environmental Journal

No abstract provided.

แก้มลิงเอกชน : การจัดระบบในพื้นที่ลุ่มเพื่อแก้ไขปัญหาน้ำท่วมในชุมชน, เกษมสันติ์ สุวรรณรัต

Environmental Journal

No abstract provided.

น้ำที่ท่านใช้ปลอดภัยจริงหรือ, สิริกร เกรอต

Environmental Journal

No abstract provided.

ไขปัญหาสารพัน

Environmental Journal

No abstract provided.

ศัพท์น่ารู้

Environmental Journal

No abstract provided.

Reductive Dehalogenation Of Chlorinated Aromatic And Aliphatic Hydrocarbons Under Anaerobic Conditions, Monica Turner Togna

Dissertations

The process of reductive dehalogenation involves the removal of a halogen substituent from a molecule with the concurrent addition of electrons to the molecule, resulting in a more reduced and often less toxic product. Anaerobic bacteria have the potential to utilize hazardous chlorinated aromatic and aliphatic hydrocarbons as electron acceptors in metabolic reductive dehalogenation processes.

In experiments performed with chlorinated aromatic compounds a highly enriched anaerobic culture stoichiometrically converted 2,4,6-trichlorophenol (2,4,6-TCP) to 4-monochlorophenol. Dehalogenation occurred only in alkaline media (pH 8-9) at concentrations of 2,4,6-TCP up to 1 mM. Data indicated that the dehalogenating organism did not fit into any …

Scaling Up Of Water-Based Organic Reactions, Chen Gu

Dissertations

Three water-based organic reactions, Diels-Alder, epoxidation of olefins, and free-radical bromination have been investigated as an approach to pollution prevention. The first two systems were scaled-up by at least a factor of 20. These reactions are of special interest to the pharmaceutical and speciality chemical industries. The photo-induced free-radical bromination of alkanes with bromine in water was studied in a two-phase system. Experimental results show that all reactions have advantages resulting from being conducted in water, such as reaction rate acceleration, reaction selectivity increase, and the absorption of water-soluble gas byproduct by solvent water.

The effects of stirring rates, temperature, …

Effect Of Vitamin Supplementation On Biodegradation Of Aliphatic Hydrocarbons And Diesel Fuel, Susmita Guptapal

Dissertations

Bioremediation of hazardous wastes is proven to be environmentally benign and most cost effective technology when proper conditions are provided. However, commercialization of this method still requires comprehensive research to enhance the degradation rate to make the technology more acceptable for implementation. In this research a unique approach to increase the rate of biodegradation by vitamins supplementation was studied.

Five vitamins, niacin, biotin, folic acid, thiamin and pantothenic acid were selected for the present study. Different short chain (C₈ and C₉), and long chain (C₁₆ and C₁₇) aliphatic hydrocarbons and diesel fuel (a mixture …

Factors That Influence Changes In Temporal And Spatial Accumulation Of Debris On An Estuarine Shoreline, Cliftwood Beach, New Jersey, Usa, Laura Pace

Theses

A field investigation was conducted on an estuarine shoreline in Raritan Bay, New Jersey to identify the temporal and spatial distribution changes in accumulation of marine debris, and the factors that influence these changes. Methodology consists of 12-monthly collections of debris and profile data, and collection of local climatological and tide data. Debris was classified by type, length, weight, fragmentation, and probable function and weathering noted for each collected item. Wind roses were constructed to determine dominant wind speed and direction and wind characteristics for time intervals between field sampling.

Plastics are the primary component of debris; glass and styrofoam …

Age Classification Of Laughing Gulls Based On Summer Plumage, Jerrold L. Belant, Richard A. Dolbeer

USDA Wildlife Services: Staff Publications

We described quantitatively 19 summer plumage characteristics and bill and foot pigmentation of 247 known-age Laughing Gulls (Larus atricilla) collected in New York during 1992-1994. There were no differences in characteristics measured for male and female Laughing Gulls. Ninety percent of 2-yr-old Laughing Gulls and 96% of ≥ 3-yr-old birds had full hoods. Fifty-seven percent of 2-yr-old Laughing Gulls possessed at least partial tail bands in contrast to 4% of 3-yr-old and 0% of ≥ 4-yr-old gulls. Thus 2-and ≥ 3-yr-old Laughing Gulls cannot be separated reliably by the presence or absence of a tail band. Pink pigmentation on the …

Promoting The Flow Of Investment Resources Into Nigeria's Petroleum Industry, M O. Ojo, C. M. Anyanwu

CBN Occasional Papers

The objective of the paper is to review the investment climate and policy incentives designed for the Nigerian oil industry with a view to evaluating how supportive they have been in terms of attracting investment funds into the sector. The industry has grown over the years to become the backbone of the economy. Given its strategic role, recent revelations of possible distress in the sector attributable to fast declining investment expenditure, deserves analysis and remedial actions. The investment needs of the industry are massive. A survey of the. sector shows that there is a large resource gap between its needs …