A Selective Bibliography on School Materials: Selection and Censorship.
ERIC Educational Resources Information Center
Folke, Carolyn, Comp.
Prepared as a guide for Wisconsin school administrators selecting school instructional materials, this bibliography provides annotations of 57 useful readings on the selection and censorship of school materials. Journal articles, monographs, and ERIC documents are included. (RAA)
Personal Finance Resource Guide.
ERIC Educational Resources Information Center
Oregon State Dept. of Education, Salem.
This personal finance guide assists teachers and curriculum committees in the selection of appropriate materials. The listings follow a common format: title; a brief description of the materials; the areas covered; the cost of materials; and information on how to obtain them. Materials cover the following areas: financial planning; purchase of…
A Resource Guide for Information/Library Education in Developing Countries.
ERIC Educational Resources Information Center
Zahari, Noor Liza Ahmad
This annotated guide to resources on library and information science education in developing countries includes materials on library schools, training and education of library staff, and the progress of libraries in specific countries. Materials in the guide were selected from the indexes of Library Literature, Library and Information Science…
Selected Technology Lab Activities Implementation Guide.
ERIC Educational Resources Information Center
Portland Public Schools, OR.
These materials supplement state guides for junior high or middle school technology education programs. The materials show instructors how to implement 81 hours of new technology-related activities into existing programs. Introductory materials include a rationale, philosophy, and goals for technology education. Areas of instruction are as…
ERIC Educational Resources Information Center
Center for Applied Linguistics, Washington, DC. Language and Orientation Resource Center.
An annotated bibliography of materials for the orientation of refugees and their sponsors is a supplement to "A Guide to Orientation Materials for Indochinese Refugees and their Sponsors," and includes 40 entries for materials pertinent to many other, non-Indochinese refugee groups. The materials are grouped alphabetically by the…
ERIC Educational Resources Information Center
Creswell, William H., Jr.; And Others
The following resource guide is one in a series which presents extensive bibliographic material oriented around a specific concept, in this guide, food selection and eating patterns. A section is devoted to selected materials related to the concept; grade levels for which each resource might be useful are indicated beside each citation. A second…
Individualized Materials for the Handicapped: A Guide for Selection.
ERIC Educational Resources Information Center
Eastern Pennsylvania Regional Resources Center for Special Education, King of Prussia.
Intended for teachers of the handicapped, the booklet provides a guide for choosing individualized instructional materials. Materials are noted to generally fall into six program categories: reading, mathematics, language arts, social studies, science, and other resources. Information on each instructional kit/program (listed alphabetically under…
A Guide to Selecting Learning Resource Materials and Equipment.
ERIC Educational Resources Information Center
Dequin, Henry C.
The process is discussed and helpful publications are reviewed for the selection of materials in three areas--learning resource materials for library media programs, materials for special education, and equipment. In the first section, such factors as the need for suitable materials, the abundance of materials available, and financial limitations…
Resource Guide: Selected Early Childhood/Early Intervention Training Materials. 8th Edition.
ERIC Educational Resources Information Center
Catlett, Camille, Comp.; Winton, Pamela J., Comp.
This resource guide is intended to identify both primary and supplementary resources for designing preservice and inservice training on early intervention programs for children with disabilities. The instructional materials are described and listed in three sections. The first section provides annotated descriptions of instructional materials in…
A Guide to Employability Skills Materials.
ERIC Educational Resources Information Center
Kromhout, Ora M.; And Others
This guide identifies existing employability skills materials and provides annotations to assist the reader in selecting materials. To assist Florida educators in relating employability skills to educational goals, Florida goals and standards are presented. A Topic Index to Titles first provides a topic outline of skills areas based on The Florida…
The Right Stuff for Children Birth to 8: Selecting Play Materials To Support Development.
ERIC Educational Resources Information Center
Bronson, Martha B.
This book serves as a guide to selecting play materials for individuals providing education and care for young children. The introductory chapter of the book discusses child play and the importance of selection of play materials based on needs of children and the purposes they serve. The next six chapters provide information on play materials,…
ERIC Educational Resources Information Center
McLaughlin, Elaine Casserly, Comp.; And Others
This resource guide to evaluated print and audiovisual nutrition materials has been developed to assist state and local staff of the Special Supplemental Program for Women, Infants and Children (WIC) and the Commodity Supplemental Foods Program (CSFP), in selecting, acquiring, and developing accurate and appropriate materials for nutrition…
Seafood Products Teacher Resource Guide.
ERIC Educational Resources Information Center
Wheeler, Jacqueline D., Ed.; Hebard, Chieko E., Ed.
This guide presents practical information about the characteristics and uses of seafood. The material can be used in several ways: as a seafood products program and teaching guide for home economics teachers, home demonstration club leaders, and extension agents; as a practical guide to the selection and preparation of seafood for consumers; and…
The Guide for Choosing Native American Parenting Curricula.
ERIC Educational Resources Information Center
Wingo, Robin R.; Mertensmeyer, Carol
This guide is designed to help professionals working with Native American parents to be better prepared to select culturally sensitive materials, to program more effectively, and to draw from the richness within the Native American culture. The guide is one in a series of culturally specific guides produced as part of ParentLink's Review of…
ERIC Educational Resources Information Center
Catlett, Camille, Ed.; Winton, Pamela J., Ed.
This resource guide identifies and describes early childhood education teaching, training, and staff development materials that meet three basic criteria: good, readily available, and inexpensive. It is designed to provide educators, trainers, supervisors, and other personnel preparation decision makers with resources for designing quality…
Resource Guide: Selected Early Childhood/Early Intervention Training Materials. 10th Edition.
ERIC Educational Resources Information Center
Catlett, Camille, Comp.; Winton, Pamela J., Comp.
The purpose of this resource guide is to identify and describe teaching, training, and staff development materials that meet three basic criteria: they are good, they are readily available, and they are inexpensive. These resources may assist educators, trainers, supervisors, and other personnel preparation decisionmakers in designing quality…
ERIC Educational Resources Information Center
Rich, John H.
This reference guide was designed to assist business, marketing, and management educators in locating textbook/instructional materials for use in teaching duty areas and task lists for grades 11-14. Duty areas and task lists are matched with selected textbook/instructional publications for the secretarial, general office clerk, and information…
Technical advisory guide (TAG) for microsurfacing pilot projects.
DOT National Transportation Integrated Search
2003-10-01
This document provides an overview of the types of microsurfacing presently used in California, including information on materials and specifications, mix design, project selection, details regarding construction, and a troubleshooting guide to assis...
ERIC Educational Resources Information Center
New York Friends Group, Inc., New York. Center for War/Peace Studies.
The purpose of this compilation of teacher-developed descriptive evaluations of curriculum materials is to provide practical guidance to available materials dealing with the selected themes of interdependence, conflict, and change. Each of six conceptual units presented on change, conflict, identity, interdependence, power and authority, and…
Mass Communication: A Guide to Reference Sources.
ERIC Educational Resources Information Center
McGill Univ., Montreal (Quebec). McLennan Library.
For the study of mass communication in social, cultural and political contexts, this annotated resource guide presents a list of materials available in the McGill University Libraries in Montreal, Canada. As a select bibliography, the guide concentrates on current sources, although some historical coverage of newspaper and journalism is included.…
ERIC Educational Resources Information Center
New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.
This teaching guide offers illustrative and reference materials that are both narrative and graphic on the three topics of Mass Media, Conflicting Ideologies, and Social Control. The objective is to furnish primary materials on these topics not easily available to teachers. Emphasis is on organizing the selections as short cases or studies.…
ERIC Educational Resources Information Center
ACKERMAN, JAMES S.; HAWLEY, JANE STOUDER
WRITTEN FOR USE WITH SECONDARY SCHOOL STUDENTS, THIS GUIDE TO THE SECULAR AND OBJECTIVE TEACHING OF BIBLICAL LITERATURE EMPHASIZES THE HISTORICAL AND LITERARY CONTEXT OF THE BIBLE RATHER THAN THEOLOGICAL INTERPRETATIONS, AND PRESENTS HISTORICAL, TEXTUAL, AND CULTURAL BACKGROUND MATERIAL FOR SELECTED OLD TESTAMENT NARRATIVES. PART 1 OF THE GUIDE…
Note Launchers: Promoting Active Reading of Mathematics Textbooks
ERIC Educational Resources Information Center
Helms, Josh W.; Helms, Kimberly Turner
2010-01-01
Note launchers, an instructor-designed reading guide, model how to select, decide, and focus upon what textbook material is important to learn. Reading guides are specially-designed study aids that can steer students through difficult parts of assigned readings (Bean, 1996) while encouraging advance preparation. As an example of a reading guide,…
China: A Guide to Reference Sources in English and Chinese.
ERIC Educational Resources Information Center
Chen, Su, Comp.; Slavin, Suzy M., Ed.
This guide to selected reference sources in the McGill University (Quebec) Library for Sinology (the study of the language, history, literature, and civilization of China) contains annotated listings for English and Chinese language materials in the following categories: (1) guides to the literature (6 references); (2) encyclopedias (3…
Handbook for Teachers of the Visually Handicapped.
ERIC Educational Resources Information Center
Napier, Grace D.; Weishahn, Mel W.
Designed to aid the inexperienced teacher of the visually handicapped, the handbook examines aspects of program objectives, content, philosophy, methods, eligibility, and placement procedures. The guide to material selection provides specific information on the acquisition of Braille materials, large type materials, recorded materials, direct…
Biology--Chemistry--Physics, Students' Guide, A Three-Year Sequence, Parts I and II.
ERIC Educational Resources Information Center
Scott, Arthur; And Others
Parts I and II of the students' guide to the three-year integrated biology, chemistry, and physics course being prepared by the Portland Project Committee are contained in this guide. A committee reviewed and selected material developed by the national course improvement groups--Physical Science Study Committee, Chemical Bond Approach, Chemical…
ERIC Educational Resources Information Center
Linhardt, Richard E.; Hunter, Bill
This instructor's guide is intended for use in teaching the agricultural mechanics unit of a plant science core curriculum. Covered in the individual units of the guide are the following topics: arc welding (following safety procedures, controlling distortion, selecting and caring for electrodes, identifying the material to be welded, and welding…
A Technical Guide to Ground-Water Model Selection at Sites Contaminated with Radioactive Substances
This report addresses the selection of ground-water flow and contaminant transport models and is intended to be used by hydrogeologists and geoscientists responsible for selecting transport models for use at sites containing radioactive materials.
Collection Development Policy.
ERIC Educational Resources Information Center
Wright, Dianne H., Ed.
This detailed written guide of the Valdosta State College Library coordinates the library's collection development policies with specific teaching and research needs of the college. It identifies subject subdivisions supporting the work of the departments, guides daily book selection, and provides guidance in the duplication of materials, location…
DOT National Transportation Integrated Search
2012-10-01
A guide specification and commentary have been prepared that lay out current state-of-the art thinking with respect to materials and : mixture selection, proportioning, and acceptance. These documents take into account the different environments, pra...
Selective and self-guided micro-ablation of tissue with plasmonic nanobubbles
Lukianova-Hleb, Ekaterina Y.; Koneva, Irina I.; Oginsky, Alexander O.; La Francesca, Saverio; Lapotko, Dmitri O.
2010-01-01
Background The accuracy, selectivity and safety of surgical and laser methods for tissue elimination are often limited at microscale. Materials and methods We developed a novel agent, the plasmonic nanobubble (PNB), for optically guided selective elimination of the target tissue with micrometer precision. PNBs were tested in vitro in the two different models of superficial tumors and vascular plaques. Results PNBs were selectively generated around gold nanoparticles (delivered to the target tissues) with short laser pulses. Monolayers of cancerous cells and atherosclerotic plaque tissue were eliminated with PNBs with micrometer accuracy and without thermal and mechanical damage to collateral normal tissues. The effect of the PNB was dynamically controlled through the fluence of laser pulses (532 nm, duration 0.5 and 10 ns) and was guided through the optical scattering by PNB. Conclusions plasmonic nanobubbles were shown to provide precise, tunable, selective and guided ablation of tissue at a microcscopic level and could be employed as a new generation of surgical tools. PMID:21176913
Design, durability and low cost processing technology for composite fan exit guide vanes
NASA Technical Reports Server (NTRS)
Blecherman, S. S.
1979-01-01
A lightweight composite fan exit guide vane for high bypass ratio gas turbine engine application was investigated. Eight candidate material/design combinations were evaluated by NASTRAN finite element analyses. A total of four combinations were selected for further analytical evaluation, part fabrication by two ventors, and fatigue test in dry and wet condition. A core and shell vane design was chosen in which the unidirectional graphite core fiber was the same for all candidates. The shell material, fiber orientation, and ply configuration were varied. Material tests were performed on raw material and composite specimens to establish specification requirements. Pre-test and post-test microstructural examination and nondestructive analyses were conducted to determine the effect of material variations on fatigue durability and failure mode. Relevant data were acquired with respect to design analysis, materials properties, inspection standards, improved durability, weight benefits, and part price of the composite fan exit guide vane.
Farmworker Nutrition Education Resource Guide.
ERIC Educational Resources Information Center
Association of Farmworker Opportunity Programs, Raleigh, NC.
This guide describes publications and other resources suitable for use in a nutrition-related health education program for migrant farmworkers and their families. Materials were selected to serve farmworker populations with low literacy levels or limited knowledge of English. Included are pamphlets, manuals, videos, fact sheets, and booklets…
Arkansas' Office Procedures Curriculum Guide.
ERIC Educational Resources Information Center
Clayton, Dean
This curriculum guide provides teachers of office procedures classes with unit lesson plans and information about resource materials that can be examined, selected, and integrated into the instructional program. Contents are mainly established for the following two types of secondary-level programs: cooperative office education and intensive…
ERIC Educational Resources Information Center
Creswell, William H., Jr.; And Others
The following resource guide is one in a series which presents extensive bibliographic material oriented around a specific concept, in this guide, the predictability and uniqueness of growing and developing. A section is devoted to selected materials related to the concept; grade levels for which each resource might be useful are indicated beside…
ERIC Educational Resources Information Center
Creswell, William H., Jr.; And Others
The following resource guide is one in a series which presents extensive bibliographic material oriented around a specific concept, in this guide, forces affecting personal health practices. A section is devoted to selected materials related to the concept; grade levels for which each resource might be useful are indicated beside each citation. A…
ERIC Educational Resources Information Center
Manchel, Frank
This resource guide describes six popular approaches to the study of the cinema and provides a practical analysis of selected books, materials, and information about motion picture rentals. Highlighting this extensive survey of film studies are the annotated, critical bibliographies and filmographies of significant books, articles and films by and…
San Jose Unified School District Health & Safety Guide for Facilities and Construction.
ERIC Educational Resources Information Center
2001
This guide from the San Jose Unified School District describes recommended procedures to promote and maintain a healthy and safe school environment during maintenance, modernization, or construction. Guidelines are presented in the following areas: (1) construction safety; (2) communication; (3) material selection; (4) heating, ventilation, and…
Social Science Curriculum Guide and Selected Multi-Media, 7-9.
ERIC Educational Resources Information Center
Gaydosh, Ronald; And Others
GRADES OR AGES: Grades 7-9. SUBJECT MATTER: Social science; history. ORGANIZATION AND PHYSICAL APPEARANCE: The extensive introductory material includes rationale, definitions of the social science core disciplines, glossary of terms, guidelines for teaching, behavioral and long-range objectives, guide format, and descriptions of concepts. The…
Competency-Based Adult Education: A Guide to Classroom Management.
ERIC Educational Resources Information Center
Guglielmino, Lucy M.; And Others
Developed as part of a 310 Special Demonstration and Teacher Training Project undertaken at Brevard Community College in 1984-85, this training guide for new Competency-Based Adult Education (CBAE) teachers offers information on the CBAE concept, individualized instruction, selection of instructional materials, student orientation, and procedures.…
THE ELECTRONIC CLASSROOM--A GUIDE FOR PLANNING.
ERIC Educational Resources Information Center
CROSSMAN, DAVID M.
GUIDES TO AID ADMINISTRATORS IN THE SELECTION AND INSTALLATION OF ELECTRONIC CLASSROOMS ARE PRESENTED. ADVANTAGES OF AN ELECTRONIC CLASSROOM ARE THAT A VARIETY OF MATERIALS CAN BE USED, SPEECH PATTERNS CAN BE RECORDED FOR SUBSEQUENT EVALUATION, RECORDED LESSONS CAN BE USED AGAIN AND AGAIN, PROGRESS OF INDIVIDUAL STUDENTS CAN BE MONITORED WITHOUT…
ERIC Educational Resources Information Center
Smith, Paul G., Ed.
2008-01-01
"California Library Laws 2008" is a selective guide to state laws and related materials that most directly affect the everyday operations of public libraries and organizations that work with public libraries. It is intended as a convenient reference, not as a replacement for the annotated codes or for legal advice. The guide is organized…
35 Strategies for Guiding Readers through Informational Texts
ERIC Educational Resources Information Center
Moss, Barbara; Loh, Virginia S.
2010-01-01
This practical guide presents inspiring, research-based activities for teaching students in grades K-12 how to read and think critically about informational texts. With five essential types of strategies, seasoned and preservice teachers learn ways to help students select engaging, challenging reading materials; develop their knowledge of history,…
El Espanol de Cuba: Situacion bibliografica (Spanish in Cuba: Bibliographies).
ERIC Educational Resources Information Center
Lopez Morales, Humberto
1968-01-01
Analytical and critical commentaries on books about the Spanish language in Cuba are presented here. Bibliographies, dictionaries, glossaries, readers, and linguistic studies are treated, and a selective bibliography of materials is presented. Most of the materials covered are also in M. W. Nichols'"A Bibliographical Guide to Materials on…
ERIC Educational Resources Information Center
Center for Applied Linguistics, Washington, DC. Language and Orientation Resource Center.
This is an annotated bibliography of orientation materials for Indochinese refugees and their sponsors. The materials have been grouped under fourteen headings: community services, consumer education, culture, education, employment, family planning and child care, finances, health, housing, legal problems, nutrition, sponsorship and resettlement,…
Focus on Perinatal Substance Abuse. MCH Program Interchange.
ERIC Educational Resources Information Center
MCH Program Interchange, 1991
1991-01-01
This document provides information about selected materials related to perinatal substance abuse. Materials include books, reports, directories, and other items issued from 1987 to 1991. Most citations provide author, title, date, contact, ordering information, and a brief abstract. The resource guide describes 13 materials from state and local…
The Internet: A Selective Annotated Bibliography of Print Material.
ERIC Educational Resources Information Center
Giguere, Marlene
1993-01-01
Describes 38 introductory print materials the novice may consult before using the Internet, including guides and directories to resources; general information about the Internet; materials about Internet applications such as electronic mail, remote login, and file transfer; and information about Internet tools such as Archie, Gopher, and WAIS…
Teaching about Asia: Professional Materials and Reference Books.
ERIC Educational Resources Information Center
Hantula, James N.
This two-part document serves as a guide to basic materials on Asia. The first part provides the teacher of Asian studies with nonserial examples of pertinent professional materials and reference books in print since 1979. Criteria used in selecting the items are given and a brief comparison between materials available in 1969 and 1985 is made.…
Guide for Materials Selection and Design for Metals Used in Contact with Copper-Treated Wood
Samuel L. Zelinka
2013-01-01
This design guide summarizes recent research on the corrosion of metals in treated wood, presents design strategies to minimize corrosion of metals in contact with treated wood, and is targeted toward engineers, architects, builders, and homeowners. The guide is organized as a âquestion and answerâ document. While the questions are arranged in a logical order, each...
The Community College Foundation Manual & Guide.
ERIC Educational Resources Information Center
Anderson, James M., Comp.; Snyder, Tom, Comp.
This collection of resources and information about community college foundations includes brief articles, selected data, materials from foundations, sample mission statements and articles of incorporation, sample forms and correspondence, relevant educational legislation, and other related materials from specific active foundations at two-year…
A Selected Special Education Bibliography and Resource Guide.
ERIC Educational Resources Information Center
Draper, Ingrid L., Comp.
Presented is a bibliography and resource guide to assist Head Start personnel who are not experienced in special education to locate helpful resources and to provide listings of current literature and training materials for special educators. Listed in Chapter (1) are several national, state, and local sources of information and resources in each…
Caregivers of Infants and Toddlers: Instructor's Guide.
ERIC Educational Resources Information Center
Texas Tech Univ., Lubbock. Home Economics Instructional Materials Center.
This guide for postsecondary child development instructors is intended for use in courses on caring for infants and toddlers in a child care setting. The materials are most effective when coordinated with a carefully selected textbook. Access to a quality care center for laboratory work is essential. An introduction describes the instructor's…
Nutrition, Health, and Safety for Child Caregivers: Instructor's Guide.
ERIC Educational Resources Information Center
Texas Tech Univ., Lubbock. Home Economics Instructional Materials Center.
This guide for postsecondary child development instructors is intended for use in courses on nutrition, health, and safety in a child care setting. The materials are most effective when coordinated with carefully selected textbooks. Access to a quality care center for laboratory work is essential. An introduction describes the instructor's guide…
Southwestern Native American Studies: A Selected Bibliography.
ERIC Educational Resources Information Center
Stabler, Karen, Comp.
Conducting research in the field of Native American studies requires the use of many different materials in the library. This guide provides a bibliography of useful tools as well as a basic strategy to follow when researching the topic. The types of documents listed include: dictionaries and encyclopedias, guides and handbooks, journal articles,…
ERIC Educational Resources Information Center
Gerber, Michael, Ed.
This directory is designed to help locate energy and environmental resource materials, print and nonprint. The directory lists private and government information sources and provides an annotated guide to periodical literature. Citations of selected book titles published in 1973 include the topics of air pollution, chemical and biological…
Social Science Curriculum Guide and Selected Multi-Media, K-6.
ERIC Educational Resources Information Center
Gaydosh, Ronald; And Others
GRADES OR AGES: K-6. SUBJECT MATTER: Social science. ORGANIZATION AND PHYSICAL APPEARANCE: The introductory material includes an explanation of the rationale, definitions of the social science core disciplines, glossary of terms, guidelines for teaching, and descriptions of concepts. The main body of the guide is designed in a five-column…
ERIC Educational Resources Information Center
Smith, Paul G., Ed.
2009-01-01
California Library Laws 2009 is a selective guide to state laws and related materials that most directly affect the everyday operations of public libraries and organizations that work with public libraries. It is intended as a convenient reference, not as a replacement for the annotated codes or for legal advice. The guide is organized as follows.…
Selected References and Aids for Teaching Animal Science to Students of Agricultural Education.
ERIC Educational Resources Information Center
Miller, Larry E.
The resource guide for animal science education is divided into six subject areas: general animal science, beef, dairy, poultry, sheep, and swine. Within each of these areas, the guide provides bibliographic and availability data for relevant materials in the following forms: bulletins and circulars; textbooks; films, filmstrips, and slides; and…
Global Change Education Resource Guide.
ERIC Educational Resources Information Center
Mortensen, Lynn L., Ed.
This guide is intended as an aid to educators who conduct programs and activities on climate and global change issues for a variety of audiences. The selected set of currently available materials are appropriate for both formal and informal programs in environmental education and can help frame and clarify some of the key issues associated with…
ERIC Educational Resources Information Center
Consumer Product Safety Commission, Washington, DC.
A consumer product safety monthly planning guide for community organizations is provided. The material is organized into suggested monthly topics with seasonal emphasis. Each section highlights selected information about how to identify potential hazards associated with categories of products. Each section also includes recommendaitons of ways to…
What Shall I Read on Japan? An Introductory Guide. Twelfth Edition.
ERIC Educational Resources Information Center
Marks, Alfred H.
This highly selective annotated list of works may be read with profit by the serious beginning student or casual reader interested in things Japanese. As many entries as possible from the earlier editions have been retained. All new materials cited were reviewed. Included are reference books, guides, fiction, novels, translations, research…
Reading Materials in Large Print: A Resource Guide. Reference Circular No. 97-02.
ERIC Educational Resources Information Center
Mendle, Gillian, Comp.
This reference circular contains information about large-print materials. Section 1 is an annotated list of selected sources of large-print materials available for purchase or loan. The sources are publishers or distributors, specialized libraries, and associations for persons with visual impairments. Several of these sources also provide general…
Teaching Students to Infer Meaning through Material Culture
ERIC Educational Resources Information Center
Brewer, Ernest Andrew; Fritzer, Penelope
2011-01-01
Social studies students can learn to glean historical information from the study of material culture through active engagement as curators. Teachers can guide students through a pre-survey of helpful reading materials and then through selecting items of personal significance to them: creating labels that objectively describe the chosen items as to…
Animal Rights: Selected Resources and Suggestions for Further Study.
ERIC Educational Resources Information Center
Davidoff, Donald J.
1989-01-01
Presents an annotated list of selected resources intended to serve as a guide to the growing amount of material on animal rights. Suggestions to aid in additional research include subject headings used to find books, indexes used to locate periodical articles, sources for locating organizations, and a selected list of animal rights organizations.…
Fiber optic assembly and method of making same
Kramer, D.P.; Beckman, T.M.
1997-09-02
There is provided an assembly having a light guiding medium sealed to a holder. Preferably the holder is a metal shell and a light guiding medium is an optical fiber of glass or sapphire whisker. The assembly includes a sealing medium which sealingly engages the metal holder to the fiber. In the formation of the assembly, the seal is essentially hermetic having a capability of minimizing leakage having a helium leak rate of less than 1{times}10{sup {minus}8} cubic centimeters per second and high strength having a capability of withstanding pressures of 100,000 psi or greater. The features of the assembly are obtained by a specific preparation method and by selection of specific starting materials. The fiber is selected to have a sufficiently high coefficient of thermal expansion which minimizes strains in the component during fabrication, as a result of fabrication, and during use. The other components are selected to be of a material having compatible coefficients of thermal expansion (TEC) where the TEC of the holder is greater than or equal to the TEC of the sealing material. The TEC of the sealing material is in turn greater than or equal to the TEC of the fiber. It is preferred that the materials be selected so that their respective coefficients of thermal expansion are as close as possible to one another and they may all be equal. 4 figs.
Fiber optic assembly and method of making same
Kramer, Daniel P.; Beckman, Thomas M.
1997-09-02
There is provided an assembly having a light guiding medium sealed to a her. Preferably the holder is a metal shell and a light guiding medium is an optical fiber of glass or sapphire whisker. The assembly includes a sealing medium which sealingly engages the metal holder to the fiber. In the formation of the assembly, the seal is essentially hermetic having a capability of minimizing leakage having a helium leak rate of less than 1.times.10.sup.-8 cubic centimeters per second and high strength having a capability of withstanding pressures of 100,000 psi or greater. The features of the assembly are obtained by a specific preparation method and by selection of specific starting materials. The fiber is selected to have a sufficiently high coefficient of thermal expansion which minimizes strains in the component during fabrication, as a result of fabrication, and during use. The other components are selected to be of a material having compatible coefficients of thermal expansion (TEC) where the TEC of the holder is greater than or equal to the TEC of the sealing material. The TEC of the sealing material is in turn greater than or equal to the TEC of the fiber. It is preferred that the materials be selected so that their respective coefficients of thermal expansion are as close as possible to one another and they may all be equal.
Manufacture of ultra high precision aerostatic bearings based on glass guide
NASA Astrophysics Data System (ADS)
Guo, Meng; Dai, Yifan; Peng, Xiaoqiang; Tie, Guipeng; Lai, Tao
2017-10-01
The aerostatic guide in the traditional three-coordinate measuring machine and profilometer generally use metal or ceramics material. Limited by the guide processing precision, the measurement accuracy of these traditional instruments is around micro-meter level. By selection of optical materials as guide material, optical processing method and laser interference measurement can be introduced to the traditional aerostatic bearings manufacturing field. By using the large aperture wave-front interference measuring equipment , the shape and position error of the glass guide can be obtained in high accuracy and then it can be processed to 0.1μm or even better with the aid of Magnetorheological Finishing(MRF) and Computer Controlled Optical Surfacing (CCOS) process and other modern optical processing method, so the accuracy of aerostatic bearings can be fundamentally improved and ultra high precision coordinate measuring can be achieved. This paper introduces the fabrication and measurement process of the glass guide by K9 with 300mm measuring range, and its working surface accuracy is up to 0.1μm PV, the verticality and parallelism error between the two guide rail face is better than 2μm, and the straightness of the aerostatic bearings by this K9 glass guide is up to 40nm after error compensation.
Exploring the Pacific States through Literature.
ERIC Educational Resources Information Center
Doll, Carol A., Ed.
The "Exploring the United States through Literature Series" comprises seven annotated regional resource guides to selected print and nonprint materials for grades K-8. Each regional resource is divided into state sections identifying materials that relate to the history, culture, geography, resources, industries, literature and lore, and…
Mode perturbation method for optimal guided wave mode and frequency selection.
Philtron, J H; Rose, J L
2014-09-01
With a thorough understanding of guided wave mechanics, researchers can predict which guided wave modes will have a high probability of success in a particular nondestructive evaluation application. However, work continues to find optimal mode and frequency selection for a given application. This "optimal" mode could give the highest sensitivity to defects or the greatest penetration power, increasing inspection efficiency. Since material properties used for modeling work may be estimates, in many cases guided wave mode and frequency selection can be adjusted for increased inspection efficiency in the field. In this paper, a novel mode and frequency perturbation method is described and used to identify optimal mode points based on quantifiable wave characteristics. The technique uses an ultrasonic phased array comb transducer to sweep in phase velocity and frequency space. It is demonstrated using guided interface waves for bond evaluation. After searching nearby mode points, an optimal mode and frequency can be selected which has the highest sensitivity to a defect, or gives the greatest penetration power. The optimal mode choice for a given application depends on the requirements of the inspection. Copyright © 2014 Elsevier B.V. All rights reserved.
Military Curriculum Materials for Vocational and Technical Education. Diet Therapy Specialist, 9-6.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This plan of instruction, teaching guide, and student study guides/workbooks for a secondary-postsecondary level course for diet therapy specialists comprise one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. Purpose of the 114-hour course is…
Preparing for the Market. Teacher Edition. Fashion Buying Series.
ERIC Educational Resources Information Center
Collins, Cindy
This teacher's guide presents material for a unit on preparing for the retail fashion market. Content focuses on merchandise plans, computing open-to-buy, computing turnover, the components of a model stock plan, and criteria used when selecting a supplier. The guide contains 5 objectives, 6 group learning activities keyed to the objectives, 21…
German as a Second Language: Annotated Bibliography of Learning Resources, Grades 1-12.
ERIC Educational Resources Information Center
Alberta Dept. of Education, Edmonton. Language Services Branch.
The annotated bibliography of print and non-print materials for students and teachers of German includes standard student texts, audiovisual materials, student and teacher references, and other media. It is intended to guide teachers in the selection of student and instructional materials for the teaching and learning of German at the elementary…
Updating Classifications of Ceramic Dental Materials: A Guide to Material Selection.
McLaren, Edward A; Figueira, Johan
2015-06-01
The indications for and composition of today's dental ceramic materials serve as the basis for determining the appropriate class of ceramics to use for a given case. By understanding the classifications, composition, and characteristics of the latest all-ceramic materials, which are presented in this article in order of most to least conservative, dentists and laboratory technicians can best determine the ideal material for a particular treatment.
ERIC Educational Resources Information Center
Case, Beau David
2000-01-01
Library literature from the late 19th century to the present offers numerous guides to materials selection. Yet, collection development policies and lists of selection criteria are inadequate for humanities electronic texts. Libraries, humanities disciplines, and electronic texts are too complex for any rigid approach to acquisition. To meet goals…
Social Science Curriculum Guide and Selected Multi-Media, 10-12.
ERIC Educational Resources Information Center
Gaydosh, Ronald
GRADES OR AGES: Grades 10-12. SUBJECT MATTER: Social science. ORGANIZATION AND PHYSICAL APPEARANCE: The extensive introductory material includes rationale, definitions of the social science core disciplines, glossary of terms, and descriptions of concepts. The course material includes political science, history, economics, geography, sociology,…
NASA Astrophysics Data System (ADS)
Bortolotti, P.; Adolphs, G.; Bottasso, C. L.
2016-09-01
This work is concerned with the development of an optimization methodology for the composite materials used in wind turbine blades. Goal of the approach is to guide designers in the selection of the different materials of the blade, while providing indications to composite manufacturers on optimal trade-offs between mechanical properties and material costs. The method works by using a parametric material model, and including its free parameters amongst the design variables of a multi-disciplinary wind turbine optimization procedure. The proposed method is tested on the structural redesign of a conceptual 10 MW wind turbine blade, its spar caps and shell skin laminates being subjected to optimization. The procedure identifies a blade optimum for a new spar cap laminate characterized by a higher longitudinal Young's modulus and higher cost than the initial one, which however in turn induce both cost and mass savings in the blade. In terms of shell skin, the adoption of a laminate with intermediate properties between a bi-axial one and a tri-axial one also leads to slight structural improvements.
Application of composite materials to turbofan engine fan exit guide vanes
NASA Technical Reports Server (NTRS)
Smith, G. T.
1980-01-01
A program was conducted by NASA with the JT9D engine manufacturer to develop a lightweight, cost effective, composite material fan exit guide vane design having satisfactory structural durability for commerical engine use. Based on the results of a previous company supported program, eight graphite/epoxy and graphite-glass/epoxy guide vane designs were evaluated and four were selected for fabrication and testing. Two commercial fabricators each fabricated 13 vanes. Fatigue tests were used to qualify the selected design configurations under nominally dry, 38 C (100 F) and fully wet and 60 C (140 F) environmental conditions. Cost estimates for a production rate of 1000 vanes per month ranged from 1.7 to 2.6 times the cost of an all aluminum vane. This cost is 50 to 80 percent less than the initial program target cost ratio which was 3 times the cost of an aluminum vane. Application to the JT9D commercial engine is projected to provide a weight savings of 236 N (53 lb) per engine.
A Selected List of Business and Economic Sources. Bibliographic Series No. 27.
ERIC Educational Resources Information Center
Ahrens, Joan
Selected information sources in business and economics held by the Arkansas University library are listed. Items are organized by material type, including indexes, directories, atlases, bibliographies, dictionaries, encyclopedias, guides, handbooks, and newspapers. Separate listings of Moody's and Standard and Poor's looseleaf publications are…
Material Selection Guidelines to Limit Atomic Oxygen Effects on Spacecraft Surfaces
NASA Technical Reports Server (NTRS)
Dooling, D.; Finckenor, M. M.
1999-01-01
This report provides guidelines in selecting materials for satellites and space platforms, designed to operate within the Low-Earth orbit environment, which limit the effects of atomic oxygen interactions with spacecraft surfaces. This document should be treated as an introduction rather than a comprehensive guide since analytical and flight technologies continue to evolve, flight experiments are conducted as primary or piggyback opportunities arise, and our understanding of materials interactions and protection methods grows. The reader is urged to consult recent literature and current web sites containing information about research and flight results.
Marketing the Arts: A Selected and Annotated Bibliography.
ERIC Educational Resources Information Center
Nakamoto, Kent, Comp.; Levin, Kathi, Comp.
Compiled from the marketing, arts, and arts management literature, this selected list includes materials ranging from theoretical articles and reports of studies to practical guides for marketing techniques. It consists of three sections: Primary Sources, Secondary Sources, and Surveys. Of particular interest to the arts administrator, the first…
Collection Development in Public Health: A Guide to Selection Tools
ERIC Educational Resources Information Center
Wallis, Lisa C.
2004-01-01
Public health librarians face many challenges in collection development because the field is multidisciplinary, the collection's users have varied needs, and many of the essential resources are grey literature materials. Further, little has been published about public health selection tools. However, librarians responsible for these areas have a…
Consumer Resource Guide: A Selected Bibliography.
ERIC Educational Resources Information Center
Nyheim, Charlotte, Comp.; Smith-Hansgen, Sharon, Comp.
The selective bibliography contains over 1,000 citations of books, pamphlets, audiovisual materials, and teaching resources related to consumer education. It is designed not only for educators but also for individual consumers and members of consumer organizations. Contents are arranged by subject matter under ten general topics: consumer and the…
ERIC Educational Resources Information Center
Burkart, Grace Stovall; Sheppard, Ken
The 15 guides included in this training packet were compiled from data gathered during a 3-year study of content-English-as-a-Second-Language (content-ESL) programs across the United States. These 15 guides are intended as stepping stones and idea-generators and include information on curriculum development, material selection and adaptation, and…
United States and New York State History, Grade 7. A Multicultural Perspective. Volume I.
ERIC Educational Resources Information Center
New York City Board of Education, Brooklyn, NY.
This resource guide, designed for use by New York City teachers, provides a wide range of suggested approaches and materials from which teachers can select as they teach the grade 7 and grade 8 course "United States and New York State History." The resource guide strives to include the histories, perspectives, and contributions of all…
Selecting and Equipping a Home Workshop. Capsules 1-5. Teacher's Guide [and] Student Material.
ERIC Educational Resources Information Center
Sack, Richard
This unit of study provides teaching guidelines and student material intended for use in high school advanced industrial arts programs. The objective is to help students plan and purchase equipment for a home workshop. A necessary prerequisite is a knowledge of the operations and uses of the equipment involved. The material is divided into five…
Using Cross-Polarized Photography as a Guide for Selecting Resin Composite Shade.
Villavicencio-Espinoza, C A; Narimatsu, M H; Furuse, A Y
The restoration of single discolored maxillary anterior teeth is still a difficult task, as not only shape and surface characterization play an important role in the success of the treatment, but the propagation of light throughout the restorative material does as well. In some cases, small changes in morphology, color, and brightness will be noticeable. These factors are sometimes very tricky, and shade guides alone are difficult to use for color selection. This article proposes a protocol of employing cross-polarization imaging for improving the accuracy of the shade selection of resin composites. The step-by-step technique is presented for the restoration of a single discolored tooth.
Course Development. A Manual for Editors of Distance-Teaching Materials.
ERIC Educational Resources Information Center
Jenkins, Janet
This manual is intended to train distance education staff in how to develop and edit teaching materials. Addressed in the individual units of the guide are the following topics: appointing writers, preparing to write, developing a course outline, selecting the structure of a unit, presenting the subject matter, developing student activities,…
A Guide for Selecting Bilingual Bicultural Resource Materials. [Volume I].
ERIC Educational Resources Information Center
Watt, Michael
This is the first of three volumes reporting a project to develop an instrument to evaluate instructional materials used in bilingual education, community language education, and bicultural education programs in Australian schools. The project had three purposes: (1) to examine the research literature on the development of models and instruments…
The High School Mathematics Library. Seventh Edition.
ERIC Educational Resources Information Center
Schaaf, William L.
This document was designed as a guide for the selection of library books for high school students of all levels of ability. It also contains materials dealing with the professional interests of students and teachers involved with mathematics in junior and community colleges. The material is categorized into: (1) Expository Mathematics; (2)…
Recruiting and Selecting a Superintendent.
ERIC Educational Resources Information Center
Lueders, Wayne J.
This manual is a resource document and guide for school boards to use in recruiting and selecting a superintendent. The material provides a basis to first identify the critical decisions that need to be made and, second, to consider alternatives or options to each of the major decision areas. The following factors are discussed: (1) the board's…
The Best Years of Their Lives: A Resource Guide for Teenagers in Crisis. Second Edition.
ERIC Educational Resources Information Center
Zvirin, Stephanie
This is a guide to nonfiction, selective fiction, and videos for young people searching for answers. Its assortment of titles can give adolescents, ages 12 to 18, a better understanding of growing up in a rapidly changing world. With a few exceptions, most of the material included here has been published since 1990 and is currently available. The…
ERIC Educational Resources Information Center
Andrews, Elaine; And Others
Water quality is an environmental issue that has received increased attention in recent years and for which there is now a variety of educational materials. This guide was developed by the Water Curriculum Needs Assessment Project to help curriculum coordinators select and develop water quality training programs and curricula. The initial sections…
1988-07-01
Skylights 33 OGS Section No. 07840: Ventilators, Roof: Gravity Type 33 SOGS Section No. 07951: Calking and Sealants 34 4 CONTENTS (Cont’d) Page 7 DOORS...shall be fully bonded to the primed surface. The finished surface shall be smooth, lustrous, and impervious to moisture. Dull or porous spots shall be...Type 1 21, Type I Gloss, TT-P-645 TT-E-1593 TT-E-1593 Sunlight Resistant SOGS Section No. 07810: Skylights Environment - Exposure Materials Selection
Concrete pavement mixture design and analysis (MDA).
DOT National Transportation Integrated Search
2012-10-01
A guide specification and commentary have been prepared that lay out current state-of-the art thinking with respect to materials and : mixture selection, proportioning, and acceptance. These documents take into account the different environments, pra...
ERIC Educational Resources Information Center
Wu, Connie
This handbook identifies the major reference sources for various engineering fields at the Library of Science and Medicine (LSM) at Rutgers University. The resources are divided into 15 categories and provide full call numbers and locations for every title. These categories include: (1) Card Catalog and Online Catalog; (2) Guide to the Literature…
ERIC Educational Resources Information Center
Dynneson, Thomas L.
This thesis examines anthropology teaching materials for public schools in light of their characteristics -- subject content, rationale and objectives, antecedent conditions, evaluation, background of materials development -- and the determination of their accuracy and representation. The study also serves as a guide to types of anthropology…
ERIC Educational Resources Information Center
Schlosser, Grace A.
With the growing popularity of comprehensive guidance and counseling programs in the schools, school personnel need model programs to guide them. An annotated list of suggested resources, designed to assist schools in the selection of materials to support comprehensive counseling and guidance programs, is provided here. All of the materials have…
ERIC Educational Resources Information Center
Air Training Command, Randolph AFB, TX.
These instructor materials and student study guide for a secondary/postsecondary level course in metal-bonded repair comprise one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. The purpose stated for the course is to train students in the…
Caribbean Connections: Overview of Regional History. Classroom Resources for Secondary Schools.
ERIC Educational Resources Information Center
Sunshine, Catherine A., Ed.; Menkart, Deborah, Ed.
This book was prepared to enable schools to incorporate material on the Caribbean into existing curricula. Four aims guided the editors in their selection and presentation of materials: (1) to show Caribbean history and contemporary realities through the eyes of ordinary people, both real and fictional; (2) to promote critical thinking rather than…
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This teacher guide, student materials, and text for a secondary-postsecondary level course for steelworker gas welding and cutting comprise one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. The purpose stated for the course is to provide…
Core IV Materials for Rural Agriculture Programs. Units H-I.
ERIC Educational Resources Information Center
Courson, Roger; And Others
This curriculum guide, the second part of a core curriculum for a rural agriculture program, consists of materials for use in presenting the final two units in a nine-unit course for high school vocational agriculture students living in rural areas. Addressed in the first unit are the following aspects of agricultural mechanics: selecting and…
A Selected and Annotated Resource List of Materials on the Holocaust.
ERIC Educational Resources Information Center
B'nai B'rith, New York, NY. Anti-Defamation League.
This guide for students, teachers, and librarians in secondary schools lists over 200 books and films about the Holocaust. The contents have been selected to help students and others find out what happened during the Holocaust, understand some of the reasons for it, develop a better understanding of the Jewish people, and reflect on their own…
The SUPERCOMET 2 Project: Teacher Seminar and Teacher Guide
NASA Astrophysics Data System (ADS)
Engstrom, V.; Ireson, G.; Latal, H.; Mathelitsch, L.; Michelini, M.; Peeters, W.; Rath, G.
2008-05-01
The Leonardo da Vinci pilot projects SUPERCOMET (2001-2004) and SUPERCOMET 2 (2004-2007) developed and tested teacher training materials for active, minds-on learning of electromagnetism and superconductivity at the level of upper secondary school. New multimedia materials for the pupils supported the teacher materials, including a teacher seminar in 4 half-day modules detailing the scientific contents, teaching methods, using ICT in physics teaching and learning, online collaboration and further resources for exploring the selected topics. The aim of these projects were to improve the quality of physics teaching on a European level, involving a combined total of 45 partners in 16 countries, and conducting trials at 67 schools with approx. 230 teachers, 280 trainee teachers and 2200 pupils. New follow-up projects develop hands-on materials for carrying out the activities described in the teacher guide and seminars and additional teacher materials involving modelling, simulations and data logging.
Dalum, Peter; Schaalma, Herman; Kok, Gerjo
2012-02-01
The objective of this project was to develop a theory- and evidence-based adolescent smoking cessation intervention using both new and existing materials. We used the Intervention Mapping framework for planning health promotion programmes. Based on a needs assessment, we identified important and changeable determinants of cessation behaviour, specified change objectives for the intervention programme, selected theoretical change methods for accomplishing intervention objectives and finally operationalized change methods into practical intervention strategies. We found that guided practice, modelling, self-monitoring, coping planning, consciousness raising, dramatic relief and decisional balance were suitable methods for adolescent smoking cessation. We selected behavioural journalism, guided practice and Motivational Interviewing as strategies in our intervention. Intervention Mapping helped us to develop as systematic adolescent smoking cessation intervention with a clear link between behavioural goals, theoretical methods, practical strategies and materials and with a strong focus on implementation and recruitment. This paper does not present evaluation data.
Woven TPS Mechanical Property Evaluation
NASA Technical Reports Server (NTRS)
Gonzales, Gregory Lewis; Kao, David Jan-Woei; Stackpoole, Margaret M.
2013-01-01
Woven Thermal Protection Systems (WTPS) is a relatively new program funded by the Office of the Chief Technologist (OCT). The WTPS approach to producing TPS architectures uses precisely engineered 3-D weaving techniques that allow tailoring material characteristics needed to meet specific mission requirements. A series of mechanical tests were performed to evaluate performance of different weave types, and get a better understanding of failure modes expected in these three-dimensional architectures. These properties will aid in material down selection and guide selection of the appropriate WTPS for a potential mission.
ERIC Educational Resources Information Center
Marquez, Benjamin, Ed.
Compiled to facilitate research in the field of Chicano Studies, this bibliography cites approximately 197 books and periodical articles published between 1937 and 1974. This bibliography is intended as a guide to select items which are part of the Chicano Materials Collection at the University of Texas at El Paso. Arranged alphabetically by the…
ERIC Educational Resources Information Center
Bebermeyer, Jim; Edmond, Mary, Ed.
Reflecting a need to prepare students for working in diverse organizations, this document was developed to increase school officials' awareness of bias in instructional materials and help them select bias-free materials. A number of the examples illustrate situations dealing with diversity in the workplace. The guide is divided into three parts:…
ERIC Educational Resources Information Center
Schlueter, Jane A.; Davis, Cyndie M.
This curriculum guide contains course materials for the seven courses of the child development curriculum at McLennan Community College (Waco, Texas). The courses, which provide information on children from birth through school age, were completely revised in 1986-1987. Course titles are Introduction to Child Development, Growth and Development I…
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
These instructor materials (curriculum outline, lesson plans) and student guide for a high school-postsecondary level course in miniature/microminiature electronic repair are one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. The course…
ERIC Educational Resources Information Center
Modig, Zeau D., Ed.
This annotated bibliography was compiled as a guide for educators, administrators, counselors, parents, and everyone concerned about the opponents of sexuality education in schools, their arguments, and their tactics. Entries were chosen to represent a variety of materials in terms of both format and content. This bibliography is divided into…
Concrete patching guide : final report.
DOT National Transportation Integrated Search
2003-09-01
Maintenance personnel often select a material for patching concrete based on what they have used in the past. However, each patching job has particular demands, which may be different from what was required in past applications. Also, the list of ava...
Research notes : concrete patching guide.
DOT National Transportation Integrated Search
2004-05-01
Maintenance personnel often select a material for patching concrete based on what they have used in the past. However, each patching job has particular demands, which may be different from what was required in past applications. Also, the list of ava...
NASA Astrophysics Data System (ADS)
Syamsuri, B. S.; Anwar, S.; Sumarna, O.
2017-09-01
This research aims to develop oxidation-reduction reactions (redox) teaching material used the Four Steps Teaching Material Development (4S TMD) method consists of four steps: selection, structuring, characterization and didactical reduction. This paper is the first part of the development of teaching material that includes selection and structuring steps. At the selection step, the development of teaching material begins with the development concept of redox based on curriculum demands, then the development of fundamental concepts sourced from the international textbook, and last is the development of values or skills can be integrated with redox concepts. The results of this selection step are the subject matter of the redox concept and values can be integrated with it. In the structuring step was developed concept map that provide on the relationship between redox concepts; Macro structure that guide systematic on the writing of teaching material; And multiple representations which are the development of teaching material that connection between macroscopic, submicroscopic, and symbolic level representations. The result of the two steps in this first part of the study produced a draft of teaching material. Evaluation of the draft of teaching material is done by an expert lecturer in the field of chemical education to assess the feasibility of teaching material.
Galileo Teacher Training Program - GTTP Days
NASA Astrophysics Data System (ADS)
Heenatigala, T.; Doran, R.
2012-09-01
Despite the vast availability of teaching resources on the internet, finding a quality and user-friendly materials is a challenge. Many teachers are not trained with proper computing skills to search for the right materials. With years of expertise training teachers globally, Galileo Teacher Training Program (GTTP) [1] recognize the need of having a go-to place for teachers to access resources. To fill this need GTTP developed - GTTP Days - a program creating resource guides for planetary, lunar and solar fields. Avoiding the imbalance in science resources between the developed and undeveloped world, GTTP Days is available both online and offline as a printable version. Each resource guide covers areas such as scientific knowledge, exploration, observation, photography, art & culture and web tools. The lesson plans of each guide include hands-on activities, web tools, software tools, and activities for people with disabilities [2]. Each activity indicate the concepts used, the skills required and age level which guides the teachers and educators to select the correct content suitable for local curriculum.
NASA Scope and Subject Category Guide
NASA Technical Reports Server (NTRS)
2011-01-01
This guide provides a simple, effective tool to assist aerospace information analysts and database builders in the high-level subject classification of technical materials. Each of the 76 subject categories comprising the classification scheme is presented with a description of category scope, a listing of subtopics, cross references, and an indication of particular areas of NASA interest. The guide also includes an index of nearly 3,000 specific research topics cross referenced to the subject categories. The portable document format (PDF) version of the guide contains links in the index from each input subject to its corresponding categories. In addition to subject classification, the guide can serve as an aid to searching databases that use the classification scheme, and is also an excellent selection guide for those involved in the acquisition of aerospace literature. The CD-ROM contains both HTML and PDF versions.
NASA Astrophysics Data System (ADS)
Guns, Christine
Guided reading, as developed by Fountas and Pinnell (2001), has been a staple of elementary reading programs for the past decade. Teachers in the elementary school setting utilize this small group, tailored instruction in order to differentiate and meet the instructional needs of the students. The literature shows academic benefit for students who have special needs, such as learning disabilities, autism, and hearing impairments but consideration of academic impact has not been investigated for regular education students. The purpose of this quasi-experimental study was to investigate the academic impact of the use of content-related (Group C) and the traditional literature-based (Group L) reading materials. During the Living Systems and Life Processes unit in science, two teachers self-selected to utilized science-related materials for guided reading instruction while the other three teacher participants utilized their normal literature-based guided reading materials. The two groups were compared using an ANCOVA in this pre-test/post-test design. The dependent variables included the Reading for Application and Instruction assessment (RAI) and a Living Systems and Life Processes assessment (LSA). Further analysis compared students of different reading levels and gender. The data analyses revealed a practical but not statistical significance for students in science performance. It was discovered that below level male and female students performed better on the LSA when provided with content-related guided reading materials. As far as reading achievement is concerned, students in both groups had comparable results. The teachers provided guided reading instruction to their students with fidelity and made adjustments to their practices due to the needs of their students. The content-related teachers utilized a larger number of expository texts than the literature-based teachers. These teachers expressed the desire to continue the practice of providing the students with content-related materials.
Microgravity: A Teacher's Guide with Activities in Science, Mathematics, and Technology
NASA Technical Reports Server (NTRS)
Rogers, Melissa J.B.; Vogt, Gregory L.; Wargo, Michael J.
1997-01-01
Microgravity is the subject of this teacher's guide. This publication identifies the underlying mathematics, physics, and technology principles that apply to microgravity. The topics included in this publication are: 1) Microgravity Science Primer; 2) The Microgravity Environment of Orbiting Spacecraft; 3) Biotechnology; 4) Combustion Science; 5) Fluid Physics; 6) Fundamental Physics; and 7) Materials Science; 8) Microgravity Research and Exploration; and 9) Microgravity Science Space Flights. This publication also contains a glossary of selected terms.
1992-09-01
PI) 297 S S S S 15 Polyamideimide (PAI) 297 S S S S 14 Polyamide 6:6 (PA 6:6) 297 S S S S 35 Perfluoroakloxyethylene ( PFA ) 297 S S S S 42 Phenol...Procedures for the Measurement of Vapor Sorption Followed by Desorption and Comparisons with Polymer Cohesion Parameter and Polymer Coil Expansion Values
A Selected Bibliography of Educational Sources.
ERIC Educational Resources Information Center
Campbell, Janet; And Others
Focusing on materials available at the California State University at Long Beach Library, this annotated bibliography lists resources in seven subject categories pertaining to education: (1) guides to the professional educational literature; (2) books about education research methodology; (3) encyclopedias and dictionaries; (4) tests and…
Guided and magnetic self-assembly of tunable magnetoceptive gels
NASA Astrophysics Data System (ADS)
Tasoglu, S.; Yu, C. H.; Gungordu, H. I.; Guven, S.; Vural, T.; Demirci, U.
2014-09-01
Self-assembly of components into complex functional patterns at microscale is common in nature, and used increasingly in numerous disciplines such as optoelectronics, microfabrication, sensors, tissue engineering and computation. Here, we describe the use of stable radicals to guide the self-assembly of magnetically tunable gels, which we call ‘magnetoceptive’ materials at the scale of hundreds of microns to a millimeter, each can be programmed by shape and composition, into heterogeneous complex structures. Using paramagnetism of free radicals as a driving mechanism, complex heterogeneous structures are built in the magnetic field generated by permanent magnets. The overall magnetic signature of final structure is erased via an antioxidant vitamin E, subsequent to guided self-assembly. We demonstrate unique capabilities of radicals and antioxidants in fabrication of soft systems with heterogeneity in material properties, such as porosity, elastic modulus and mass density; then in bottom-up tissue engineering and finally, levitational and selective assembly of microcomponents.
Guided and magnetic self-assembly of tunable magnetoceptive gels
Tasoglu, S.; Yu, C.H.; Gungordu, H.I.; Guven, S.; Vural, T.; Demirci, U.
2014-01-01
Self-assembly of components into complex functional patterns at microscale is common in nature, and used increasingly in numerous disciplines such as optoelectronics, microfabrication, sensors, tissue engineering and computation. Here, we describe the use of stable radicals to guide the self-assembly of magnetically tunable gels, which we call ‘magnetoceptive’ materials at the scale of hundreds of microns to a millimeter, each can be programmed by shape and composition, into heterogeneous complex structures. Using paramagnetism of free radicals as a driving mechanism, complex heterogeneous structures are built in the magnetic field generated by permanent magnets. The overall magnetic signature of final structure is erased via an antioxidant vitamin E, subsequent to guided self-assembly. We demonstrate unique capabilities of radicals and antioxidants in fabrication of soft systems with heterogeneity in material properties, such as porosity, elastic modulus and mass density; then in bottom-up tissue engineering and finally, levitational and selective assembly of microcomponents. PMID:25175148
LDEF materials data analysis: Representative examples
NASA Technical Reports Server (NTRS)
Pippin, Gary; Crutcher, Russ
1993-01-01
Part of the philosophy which guided the examination of hardware from the Long Duration Exposure Facility (LDEF) was that materials present at multiple locations should have fairly high priority for investigation. Properties of such materials were characterized as a function of exposure conditions to obtain as much data as possible for predicting performance lifetimes. Results from examination of several materials from interior locations of LDEF, selected measurements on silverized teflon blanket specimens, and detailed measurements on the copper grounding strap from tray D11 are summarized. Visual observations of interior locations of LDEF made during deintegration at KSC showed apparent changes in particular specimens. This inspection lead to testing of selected nylon clamps, fiberglass shims, and heat shrink tubing from wire harness clamps, and visually discolored silver coated hex nuts.
Rural Workplace Literacy Demonstration Project. Welding Curriculum. Dorsey Trailers, Inc.
ERIC Educational Resources Information Center
Enterprise State Junior Coll., AL.
This curriculum guide contains workplace-specific instructional materials developed for use in a rural workplace literacy demonstration project, specifically with welders. Contents include a student assessment form, instructional objectives, pre- and posttests, learning activities (some locally developed and some selected from commercially…
Personnel Practices for Small Colleges.
ERIC Educational Resources Information Center
Bouchard, Ronald A.
Personnel administration in higher education is the focus of this "hands-on, how-to-do-it" guide that provides fundamental materials for developing and maintaining a sound personnel program. Part One (Employment) examines government regulations, employee recruitment and selection, pre-employment inquiries and screening, post-employment process,…
ERIC Educational Resources Information Center
New Hampshire Educational Media Association, Concord.
This is a guide to policies and procedures for instructional material selection and reconsideration for school media personnel. It includes the basic statements, interpretations, writings, and forms from national library and teacher organizations. A major section discusses legal precedents in the area of intellectual freedom, in addition to…
MANAGEMENT AND TREATMENT OF WATER FROM HARD-ROCK MINES {ENGINEERING ISSUE}
This Engineering Issue document on treatment of mining waters is a practical guide to understanding and selecting technologies for the environmental management of waste materials and effluents at hard-rock mines. For the purposes of this discussion, hard-rock mining primarily ref...
NASA Astrophysics Data System (ADS)
Chawla, Viveak Kumar; Chanda, Arindam Kumar; Angra, Surjit
2018-03-01
The flexible manufacturing system (FMS) constitute of several programmable production work centers, material handling systems (MHSs), assembly stations and automatic storage and retrieval systems. In FMS, the automatic guided vehicles (AGVs) play a vital role in material handling operations and enhance the performance of the FMS in its overall operations. To achieve low makespan and high throughput yield in the FMS operations, it is highly imperative to integrate the production work centers schedules with the AGVs schedules. The Production schedule for work centers is generated by application of the Giffler and Thompson algorithm under four kind of priority hybrid dispatching rules. Then the clonal selection algorithm (CSA) is applied for the simultaneous scheduling to reduce backtracking as well as distance travel of AGVs within the FMS facility. The proposed procedure is computationally tested on the benchmark FMS configuration from the literature and findings from the investigations clearly indicates that the CSA yields best results in comparison of other applied methods from the literature.
High-throughput search for caloric materials: the CaloriCool approach
NASA Astrophysics Data System (ADS)
Zarkevich, N. A.; Johnson, D. D.; Pecharsky, V. K.
2018-01-01
The high-throughput search paradigm adopted by the newly established caloric materials consortium—CaloriCool®—with the goal to substantially accelerate discovery and design of novel caloric materials is briefly discussed. We begin with describing material selection criteria based on known properties, which are then followed by heuristic fast estimates, ab initio calculations, all of which has been implemented in a set of automated computational tools and measurements. We also demonstrate how theoretical and computational methods serve as a guide for experimental efforts by considering a representative example from the field of magnetocaloric materials.
High-throughput search for caloric materials: the CaloriCool approach
Zarkevich, Nikolai A.; Johnson, Duane D.; Pecharsky, V. K.
2017-12-13
The high-throughput search paradigm adopted by the newly established caloric materials consortium—CaloriCool ®—with the goal to substantially accelerate discovery and design of novel caloric materials is briefly discussed. Here, we begin with describing material selection criteria based on known properties, which are then followed by heuristic fast estimates, ab initio calculations, all of which has been implemented in a set of automated computational tools and measurements. We also demonstrate how theoretical and computational methods serve as a guide for experimental efforts by considering a representative example from the field of magnetocaloric materials.
Guided ultrasonic wave beam skew in silicon wafers
NASA Astrophysics Data System (ADS)
Pizzolato, Marco; Masserey, Bernard; Robyr, Jean-Luc; Fromme, Paul
2018-04-01
In the photovoltaic industry, monocrystalline silicon wafers are employed for solar cells with high conversion efficiency. Micro-cracks induced by the cutting process in the thin wafers can lead to brittle wafer fracture. Guided ultrasonic waves would offer an efficient methodology for the in-process non-destructive testing of wafers to assess micro-crack density. The material anisotropy of the monocrystalline silicon leads to variations of the guided wave characteristics, depending on the propagation direction relative to the crystal orientation. Selective guided ultrasonic wave excitation was achieved using a contact piezoelectric transducer with custom-made wedges for the A0 and S0 Lamb wave modes and a transducer holder to achieve controlled contact pressure and orientation. The out-of-plane component of the guided wave propagation was measured using a non-contact laser interferometer. The phase slowness (velocity) of the two fundamental Lamb wave modes was measured experimentally for varying propagation directions relative to the crystal orientation and found to match theoretical predictions. Significant wave beam skew was observed experimentally, especially for the S0 mode, and investigated from 3D finite element simulations. Good agreement was found with the theoretical predictions based on nominal material properties of the silicon wafer. The important contribution of guided wave beam skewing effects for the non-destructive testing of silicon wafers was demonstrated.
Teacher’s Mathematical Communication Profile in Facilitating and Guiding Discussion
NASA Astrophysics Data System (ADS)
Umami, R.; Budayasa, I. K.; Suwarsono, St.
2018-01-01
Teacher’s communication skill plays an important role, one of which is to guide a class discussion for teaching purposes. This study aimed to investigate a teacher’s mathematical communication profile in facilitating and guiding a class discussion. This study is qualitative. A junior teacher of high school (i.e., a teacher with 1 to 5 year teaching experience) teaching mathematics at X-Social Class was selected as the subject of this study. The data was collected by observing the teacher’s mathematical communication in facilitating and guiding a discussion with the rules of sinus as the teaching material, and it was followed by a deep interview. The result showed that the junior teacher facilitated and guided a class discussion include providing responses (answer) addressing students’ difficulties and providing chances for students to propose and explain their ideas and be active in discussion. The junior teacher provides responses at sharp, optimal, and specific manner. In addition, she provides chances for her students to explain their thinking and have a discussion in anticipative, observative, selective, and connective manner. However, the study found that some of high-school teachers develop mathematical communication skills and use them to develop students’ mathematical communication skills.
West Valley College Vocational and Technical Advisory Committees.
ERIC Educational Resources Information Center
West Valley Coll., Saratoga, CA.
This brochure describes junior college advisory committees as groups of persons who represent industry and assist in organizing curriculum, advise on material procurement, keep the college current on industry practices, coordinate programs with the community, assist in student selection, guide instructors, provide moral support and public…
Building Whales in Sand and Mind.
ERIC Educational Resources Information Center
Warner, Carolyn
1980-01-01
Describes two-week summer workshops on evolution, adaptation, and behavior of whales, conducted for children by Cold Spring Harbor Whaling Museum (New York), and culminating in creation of life-size sand sculptures of whales. Provides selected list of periodicals, teaching materials, identification guides, records, and societies devoted to whales…
ERIC Educational Resources Information Center
Tatsuki, Donna
Popular films can be used successfully in a wide range of language, content, and culture classes. Creating support materials in order to use a movie in such a class is an enormous task, but with careful planning it can be broken into four manageable components: contemplation, selection, segmentation, and construction. This brief paper provides a…
Children's Film Programming: A Handbook.
ERIC Educational Resources Information Center
Gallery Association of New York State, Inc.
Directed at the staffs of art institutions, community centers, libraries, historical societies, and schools, this practical guide is intended to help in the selection and use of films for children. "Film," in this handbook refers to 16mm films presented in public screenings--not videotape versions of films, and not material originally…
A Guide to Instructional Resources for Consumers' Education.
ERIC Educational Resources Information Center
Johnston, William L.; Greenspan, Nancy B.
This annotated bibliography lists 295 selected instructional references, resources, and teaching aids for consumer education. It includes a variety of both print and nonprint materials, such as films, filmstrips, multimedia kits, games and learning packages for classroom and group instruction, textbooks for all age levels, and references for both…
ERIC Educational Resources Information Center
Alberta Education Response Centre, Edmonton.
This resource guide provides an annotated bibliography of 101 articles and newsletters of interest to parents and teachers of children in preschool through grade 3. The bibliography contains the titles and short descriptions of materials, selected with the assistance of parents and teachers from across Alberta (Canada), on a wide range of topics…
The ABE/AMH Manual. An Instructional Guide for ABE Programs Serving Mentally Handicapped Adults.
ERIC Educational Resources Information Center
Lehman, Scott C.; Edgar, S. Keith
This handbook provides adult basic education teachers with instructional materials for working with adult mentally handicapped students. Section 1 examines planning programs for adult mentally retarded students (getting started, specific considerations, various kinds of program sites) and implementing instruction (staff selection and training).…
A Bibliography on American Indians. Bibliographic Series No. 36.
ERIC Educational Resources Information Center
Perry, Larry S.
The information sources on Indians of North and South America which are listed were selected from the holdings of the Arkansas University library. Materials are grouped by type, including bibliographies, biographies, catalogs and directories, documentary histories, laws and treaties, encyclopedias and guides, handbooks and sourcebooks, microfilm,…
GUIDE FOR OPPORTUNITY CLASSES.
ERIC Educational Resources Information Center
JENNINGS, H. MARVIN; AND OTHERS
TO MEET THE NEEDS OF THE SLOW LEARNER AT THE SECONDARY LEVELS, CAREFULLY PLANNED AND TESTED GUIDELINES ARE SET FORTH FOR SELECTION OF PUPILS, STANDARDS FOR GRADING, AND GRADUATION REQUIREMENTS. LESSON PLANS AND SUGGESTIONS, MATERIALS, AND TEXTBOOKS ARE INCLUDED. COURSES COVERED ARE LANGUAGE ARTS, JUNIOR HIGH ARITHMETIC, MATHEMATICS IN HIGH SCHOOL,…
Counselor's Guide to Manpower Information; An Annotated Bibliography of Government Publications.
ERIC Educational Resources Information Center
Smith, Gerard C.
This selected bibliography of materials published by all Federal and many state agencies from 1962 to 1968 is divided into four sections. One deals with occupational and industry manpower literature, including occupational outlook service information, occupational and industry manpower studies, job descriptions, and Federal government careers. The…
Military Curricula for Vocational & Technical Education. Communications Computer Programmer, 4-2.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
These student materials--study guides, handouts (some are manuals), a workbook, and programmed texts--for a secondary-postsecondary-level course for communications computer programmer are one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. A…
ERIC Educational Resources Information Center
MARTONFFY, ANDREA PONTECORVO; AND OTHERS
A CURRICULUM GUIDE IS PRESENTED FOR A 10-WEEK STUDY OF ANCIENT GREEK CIVILIZATION AT THE 10TH-GRADE LEVEL. TEACHING MATERIALS FOR THE UNIT INCLUDE (1) PRIMARY AND SECONDARY SOURCES DEALING WITH THE PERIOD FROM THE BRONZE AGE THROUGH THE HELLENISTIC PERIOD, (2) GEOGRAPHY PROBLEMS, AND (3) CULTURAL MODEL PROBLEM EXERCISES. THOSE CONCEPTS WITH WHICH…
An Annotated Bibliography for Health Occupations: A Guide for Teachers and Students.
ERIC Educational Resources Information Center
Solon, Lindy
The bibliography is designed to assist teachers and students at the secondary level in selecting printed and audiovisual materials related to health occupations. The 115 items relate to the following occupations: dental assistant, medical laboratory aide, practical nurse, nurse assistant, rehabilitation aide, physical therapy aide, radiologic…
Resource Letter PD-1 on Particle Detectors
ERIC Educational Resources Information Center
Trower, W. Peter
1970-01-01
Intended to guide college physicists to literature on nuclear and sub-nuclear particle detectors. The paper contains a discussion of (1) interactions of particles with matter and (2) individual particle detectors, each section being followed by an annotated bibliography of selected reference materials. Rankings are given to the articles on the…
Alaska. Part I: Bibliographies, History and Natural Sciences.
ERIC Educational Resources Information Center
Hubbard, Terry E., Comp.
The bibliographies in this series constitute a preliminary guide to the circulating and reference Alaskana collection of the Elmer E. Rasmuson library at the University of Alaska, Fairbanks. The material was selected using the triple criteria of information value, availability, and suitability for a small general interest collection. No childrens'…
Taking the Law into Your Own Hands.
ERIC Educational Resources Information Center
Pedzich, Joan
1993-01-01
Describes how to select materials needed by the growing legal self-help movement, the importance of currency, and publishers in the field. An annotated bibliography of 25 titles includes general guides and books focusing on estate planning, going to court, contracts, animals, immigration, domestic issues, real estate, and bankruptcy. (KRN)
Entrepreneurship Training in Vocational Education.
ERIC Educational Resources Information Center
South Carolina State Dept. of Education, Columbia. Office of Vocational Education.
This guide on entrepreneurship is designed for use as a unit within an existing course. The unit is best used as individualized instruction, although small groups could be used; class discussions should precede individual work. Material is organized into six parts: entrepreneurship as a career, legal considerations of entrepreneurship, selecting a…
Guide to Reference Materials for School Library Media Centers. Fifth Edition.
ERIC Educational Resources Information Center
Safford, Barbara Ripp
This publication lists current reference sources that serve the information needs of school library users, including books, CD-ROMs, and World Wide Web sources in all curricular and some extracurricular areas. Criteria for selection include usefulness for curricular applications by elementary and secondary students and teachers, interest for…
Soft Skills Training: An Annotated Guide to Selected Programs.
ERIC Educational Resources Information Center
Leigh, Wilhelmina A.; Lee, Deitra H.; Lindquist, Malinda A.
This guidebook presents data from a two-part study that reviewed existing literature on soft work skills, defined soft skills, and determined their importance to employers. The study also identified programs that were teaching those skills. Researchers contacted 90 organizations, asking for detailed written materials about themselves. The 53 that…
Surface materials map of Afghanistan: iron-bearing minerals and other materials
King, Trude V.V.; Kokaly, Raymond F.; Hoefen, Todd M.; Dudek, Kathleen B.; Livo, Keith E.
2012-01-01
This map shows the distribution of selected iron-bearing minerals and other materials derived from analysis of HyMap imaging spectrometer data of Afghanistan. Using a NASA (National Aeronautics and Space Administration) WB-57 aircraft flown at an altitude of ~15,240 meters or ~50,000 feet, 218 flight lines of data were collected over Afghanistan between August 22 and October 2, 2007. The HyMap data were converted to apparent surface reflectance, then further empirically adjusted using ground-based reflectance measurements. The reflectance spectrum of each pixel of HyMap data was compared to the spectral features of reference entries in a spectral library of minerals, vegetation, water, ice, and snow. This map shows the spatial distribution of iron-bearing minerals and other materials having diagnostic absorptions at visible and near-infrared wavelengths. These absorptions result from electronic processes in the minerals. Several criteria, including (1) the reliability of detection and discrimination of minerals using the HyMap spectrometer data, (2) the relative abundance of minerals, and (3) the importance of particular minerals to studies of Afghanistan's natural resources, guided the selection of entries in the reference spectral library and, therefore, guided the selection of mineral classes shown on this map. Minerals occurring abundantly at the surface and those having unique spectral features were easily detected and discriminated. Minerals having similar spectral features were less easily discriminated, especially where the minerals were not particularly abundant and (or) where vegetation cover reduced the absorption strength of mineral features. Complications in reflectance calibration also affected the detection and identification of minerals.
Lightweight Composite Materials for Heavy Duty Vehicles
DOE Office of Scientific and Technical Information (OSTI.GOV)
Pruez, Jacky; Shoukry, Samir; Williams, Gergis
The main objective of this project is to develop, analyze and validate data, methodologies and tools that support widespread applications of automotive lightweighting technologies. Two underlying principles are guiding the research efforts towards this objective: • Seamless integration between the lightweight materials selected for certain vehicle systems, cost-effective methods for their design and manufacturing, and practical means to enhance their durability while reducing their Life-Cycle-Costs (LCC). • Smooth migration of the experience and findings accumulated so far at WVU in the areas of designing with lightweight materials, innovative joining concepts and durability predictions, from applications to the area of weightmore » savings for heavy vehicle systems and hydrogen storage tanks, to lightweighting applications of selected systems or assemblies in light–duty vehicles.« less
ERIC Educational Resources Information Center
Wisconsin State Dept. of Public Instruction, Madison.
This resource document provides information about technical assistance and educational materials that can guide the development, implementation, and evaluation of acquired immunodeficiency syndrome (AIDS) education. The resources also offer information about programs whose goals are to prevent the spread of human immunodeficiency virus (HIV) and…
Fiber optic device for sensing the presence of a gas
Benson, D.K.; Bechinger, C.S.; Tracy, C.E.
1998-01-13
A fiber-optic device for sensing the presence of a gas in an environment is provided. The device comprises a light source for directing a light beam to a layer system having a first surface and a second surface opposite the first surface. The first surface is exposable to the light beam and the second surface is exposable to the environment. A first light portion encounters and reflects from the first surface at an angle of incidence free from optical wave guide resonance phenomenon and the second light portion encounters and reflects from the first surface at an angle of incidence enabling an optical wave guide resonance phenomenon. The layer system is selected to reversibly react with the gas to be detected. The reaction between the gas and the material changes the material`s optical properties and the wavelength at which the optical wave guide resonance occurs. Furthermore, a mechanism for measuring the intensity of the reflected first light portion relative to the reflected second light portion is provided with the ratio of the first and second light portions indicating the concentration of the gas presence in the environment. 5 figs.
Women and American Politics: A Selected Bibliography, 1965-1974.
ERIC Educational Resources Information Center
Chrisman, Sara B.
This bibliography is intended to serve as a guide to information about women's participation in American politics. Emphasis is on materials published since 1965, but landmark works published earlier are also included. Many documents are from unpublished sources; information on obtaining them is available from the Center for the American Woman and…
Designs for Living and Learning: Transforming Early Childhood Environments.
ERIC Educational Resources Information Center
Curtis, Deb; Carter, Margie
While the early childhood field has formed standards to help in recognizing quality programs for children, practitioners seldom use values to guide in selection of materials or to help plan early childhood environments. This book draws on a variety of educational approaches, including Waldorf, Montessori, and Reggio Emilia, to outline hundreds of…
Advisory List of Reference Books for Grades K-6.
ERIC Educational Resources Information Center
North Carolina State Dept. of Public Instruction, Raleigh. Div. of Educational Media.
Intended to serve as a guide rather than as a comprehensive listing, this advisory list includes reference books appropriate for school media collections for grades K-6. Entries included on the list were selected from those materials submitted by publishers which received favorable reviews by educators. Single volumes and sets of books are listed…
Instructional Computing. An Action Guide for Educators.
ERIC Educational Resources Information Center
Dennis, J. Richard; Kansky, Robert J.
This book is directed to any educator who is interested in the use of the computer to improve classroom instruction. It is a book about the materials, human factors, and decision-making procedures that make up the instructional application of computers. This document's single goal is to promote educators' thoughtful selection and use of both…
HOW TO FIND OUT ABOUT PHYSICS.
ERIC Educational Resources Information Center
YATES, B.
SOURCES OF PHYSICS INFORMATION ARE INCLUDED IN THIS GUIDE. IT WAS WRITTEN FOR STUDENTS AND TEACHERS OF PHYSICS, AT BOTH THE COLLEGE AND SECONDARY LEVELS, PHYSICISTS, LIBRARIANS, AND THE GENERAL PUBLIC. MATERIALS QUOTED WERE PUBLISHED PRIOR TO 1963 AND WERE SELECTED ON THE BASIS OF THE AUTHOR'S EXPERIENCE AS AN INFORMATION SCIENTIST. DEWEY DECIMAL…
Military Curriculum Materials for Vocational and Technical Education. Electrician Part I, 3-17.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This plan of instruction, lesson plans, workbooks, study guides, and programmed texts for a secondary-postsecondary course for electricians comprise one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. It contains the first two blocks of a…
Military Curriculum Materials for Vocational and Technical Education. Electrician, 3-18.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This plan of instruction, lesson plans, workbooks, and study guides for a secondary-postsecondary course for electricians comprise one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. It contains the final three blocks of a five-block course…
A Middle School Teacher's Guide for Selecting Picture Books
ERIC Educational Resources Information Center
Costello, Bill; Kolodziej, Nancy J.
2006-01-01
The use of picture books as supplementary material for middle level classrooms is becoming more common. Picture books are being created specifically to address the needs and interests of middle school students. Society is becoming more visually oriented and the visual format of picture books appeals to adolescents, who today are exposed to various…
NASA Astrophysics Data System (ADS)
Zhang, Bo; Cui, Qingfeng; Piao, Mingxu
2018-05-01
The effect of substrate material selection for multilayer diffractive optical elements (MLDOEs) on polychromatic integral diffraction efficiency (PIDE) is studied in the oblique incident situation. A mathematical model of substrate material selection is proposed to obtain the high PIDE with large incident angle. The extended expression of the microstructure heights with consideration of incident angle is deduced to calculate the PIDE difference Δ η bar(λ) for different substrate material combinations. The smaller value of Δ η bar(λ) indicates the more optimal substrate material combination in a wide incident angle range. Based on the deduced mathematical model, different MLDOEs are analyzed in visible and infrared wavebands. The results show that the three-layer DOEs can be applied in larger incident angle situation than the double-layer DOEs in visible waveband. When the two substrate materials are the same, polycarbonate (PC) is more reasonable than poly(methyl methacrylate) (PMMA) as the middle filling optical material for the three-layer DOEs. In the infrared waveband, the PIDE decreases in the LWIR are obviously smaller than that in the MWIR for the same substrate material combination, and the PIDE cannot be calculated when the incident angle larger than critical angle. The analysis results can be used to guide the hybrid optical system design with MLDOEs.
A process-oriented guided inquiry approach to teaching medicinal chemistry.
Brown, Stacy D
2010-09-10
To integrate process-oriented guided-inquiry learning (POGIL) team-based activities into a 1-semester medicinal chemistry course for doctor of pharmacy (PharmD) students and determine the outcomes. Students in the fall 2007 section of the Medicinal Chemistry course were taught in a traditional teacher-centered manner, with the majority of class time spent on lectures and a few practice question sets. Students in the fall 2008 and fall 2009 sections of Medicinal Chemistry spent approximately 40% of class time in structured self-selected teams where they worked through guided-inquiry exercises to supplement the lecture material. The mean examination score of students in the guided-inquiry sections (fall 2008 and fall 2009) was almost 3 percentage points higher than that of students in the fall 2007 class (P < 0.05). Furthermore, the grade distribution shifted from a B-C centered distribution (fall 2007 class) to an A-B centered distribution (fall 2008 and fall 2009 classes). The inclusion of the POGIL style team-based learning exercises improved grade outcomes for the students, encouraged active engagement with the material during class time, provided immediate feedback to the instructor regarding student-knowledge deficiencies, and created a classroom environment that was well received by students.
Industrial Catalysis: A Practical Guide
NASA Astrophysics Data System (ADS)
Farrauto, Robert J.
Every student of chemistry, material science, and chemical engineering should be schooled in catalysis and catalytic reactions. The reason is quite simple; most products produced in the chemical and petroleum industry utilize catalysts to enhance the rate of reaction and selectivity to desired products. Catalysts are also extensively used to minimize harmful byproduct pollutants in environmental applications. Enhanced reaction rates translate to higher production volumes at lower temperatures with smaller and less exotic materials of construction necessary. When a highly selective catalyst is used, large volumes of desired products are produced with virtually no undesirable byproducts. Gasoline, diesel, home heating oil, and aviation fuels owe their performance quality to catalytic processing used to upgrade crude oil.
User guide for luminescence sampling in archaeological and geological contexts
Nelson, Michelle S.; Gray, Harrison J.; Johnson, Jack A.; Rittenour, Tammy M.; Feathers, James K.; Mahan, Shannon
2015-01-01
Luminescence dating provides a direct age estimate of the time of last exposure of quartz or feldspar minerals to light or heat and has been successfully applied to deposits, rock surfaces, and fired materials in a number of archaeological and geological settings. Sampling strategies are diverse and can be customized depending on local circumstances, although all sediment samples need to include a light-safe sample and material for dose-rate determination. The accuracy and precision of luminescence dating results are directly related to the type and quality of the material sampled and sample collection methods in the field. Selection of target material for dating should include considerations of adequacy of resetting of the luminescence signal (optical and thermal bleaching), the ability to characterize the radioactive environment surrounding the sample (dose rate), and the lack of evidence for post-depositional mixing (bioturbation in soils and sediment). Sample strategies for collection of samples from sedimentary settings and fired materials are discussed. This paper should be used as a guide for luminescence sampling and is meant to provide essential background information on how to properly collect samples and on the types of materials suitable for luminescence dating.
Cartilage grafting in nasal reconstruction.
Immerman, Sara; White, W Matthew; Constantinides, Minas
2011-02-01
Nasal reconstruction after resection for cutaneous malignancies poses a unique challenge to facial plastic surgeons. The nose, a unique 3-D structure, not only must remain functional but also be aesthetically pleasing to patients. A complete understanding of all the layers of the nose and knowledge of available cartilage grafting material is necessary. Autogenous material, namely septal, auricular, and costal cartilage, is the most favored material in a free cartilage graft or a composite cartilage graft. All types of material have advantages and disadvantages that should guide the most appropriate selection to maximize the functional and cosmetic outcomes for patients. Copyright © 2011 Elsevier Inc. All rights reserved.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This plan of instruction, lesson plans, and student materials (programed texts, workbooks, and study guides) for a secondary-postsecondary level course in engine mechanics is one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. It is the third…
ERIC Educational Resources Information Center
BEAUMONT, JOHN A; AND OTHERS
DESIGNED TO ASSIST ADMINISTRATORS, SUPERVISORS, AND TEACHERS TO PLAN, DEVELOP, AND EVALUATE PROGRAMS, THIS CURRICULUM GUIDE OFFERS COURSE OUTLINES, PROCEDURES, LABORATORY LAYOUTS, TEXTS AND REFERENCES, LISTS OF LABORATORY EQUIPMENT AND ITS COST, AND A SELECTED LIST OF SCIENTIFIC AND TECHNICAL SOCIETIES. BASIC MATERIALS WERE PREPARED AT THE…
ERIC Educational Resources Information Center
Environmental Protection Agency, Washington, DC.
Instructions for building owners on the selection and application of appropriate asbestos control and abatement actions are presented in this guidebook. Chapter 1 offers background information on the asbestos problem. Chapter 2 describes the purpose and scope of an operations and maintenance (O&M) program. The third chapter discusses planning…
Activities for Teaching Positive Psychology: A Guide for Instructors
ERIC Educational Resources Information Center
Froh, Jeffrey J., Ed.; Parks, Acacia C., Ed.
2012-01-01
Positive psychology is a rapidly expanding area of study that is of great interest to students at the graduate, undergraduate, and high school levels. But the field is so broad that teachers who want to cover all the bases when designing a positive psychology course may have difficulty locating and selecting materials. "Activities for Teaching…
ERIC Educational Resources Information Center
Heinrichs, Wally; And Others
Despite their large numbers, environmental education resources can be difficult to find. The purpose of this catalogue is to broaden the awareness of available resources among educators and curriculum developers and facilitate their accessibility. This first edition of the catalogue contains approximately 1,200 of the more than 4,000 titles that…
Core III Materials for Metropolitan Agriculture/Horticulture Programs. Units A-I.
ERIC Educational Resources Information Center
Biondo, Ron; And Others
This first volume of a two-volume curriculum guide contains 11 problem areas selected for study to be included in a core curriculum for 11th-grade or third-year students enrolled in a metropolitan agricultural program. The 11 problem areas are divided into eight units: Orientation to Agricultural Occupations (Gaining Employment), Supervised…
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This plan of instruction, lesson plans, and student materials (study guides, workbooks, and programed texts) for a secondary-postsecondary level course in engine mechanics is one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. It is the second…
Optometry Specialist, 10-7. Military Curriculum Materials for Vocational and Technical Education.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
These lesson plans and study guides for a secondary/postsecondary level course in optometry comprise one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. The purpose stated for the 128-hour course is to train students in basic ocular anatomy…
ERIC Educational Resources Information Center
Williams, Ora
In this bibliography of works by and about black women, books, stories, essays, poems, visual artistic works, musical compositions, and audio-visual materials are listed. Reference works and guides to collections are also included. A chronology of some significant dates in the history of American black women and selected individual bibliographies…
Kinder Lernen Deutsch Materials Evaluation Project: Grades K-8.
ERIC Educational Resources Information Center
American Association of Teachers of German.
The Kinder Lernen Deutsch (Children Learn German) project, begun in 1987, is designed to promote German as a second language in grades K-8. The project is premised on the idea that the German program will contribute to the total development of the child and the child's personality. Included in this guide are a selection of recommended core…
ERIC Educational Resources Information Center
Raphael, Katherine
This packet contains both teacher and student materials for a unit on poultry production in vocational agriculture courses and covers the following lessons: (1) overview of the poultry industry; (2) selection and evaluation; (3) production; (4) reproduction; (5) health issues; and (6) processing and marketing. The lessons include the following…
ERIC Educational Resources Information Center
Blank, Ruth
The 178 titles in the annotated bibliography represent a variety of American Indian and Alaska Native topics and literature from 1953 to 1980 (primarily the 1970's). Serving as a guide for teachers and Native American parents, the bibliography alphabetically lists published material non-stereotypic of American Indians and suitable for teaching…
Military Curricula for Vocational & Technical Education. Veterinary Specialist, Blocks III-VI.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
These instructor materials and student texts, study guides, and workbooks for a postsecondary-level course to train veterinary specialists are one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. It is the first half of a two-part course (see…
Military Curricula for Vocational & Technical Education. Veterinary Specialist, Blocks VII-XI, 1-4.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
These instructor materials and student texts, study guides, and workbooks for a postsecondary-level course to train veterinary specialists are one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. It is the second half of a two-part course (see…
Choosing a Microcomputer for Use as a Teaching Aid.
ERIC Educational Resources Information Center
Visniesky, Cheryl; Hocking, Joan
A step-by-step guide to the selection of a microcomputer system is provided for educators having made the decision to implement computer-assisted instruction. The first step is to clarify reasons for using a microcomputer rather than conventional instructional materials. Next, the degree of use (e.g., types of courses and number of departments…
Guide to Reading for Social Studies Teachers. Bulletin 46.
ERIC Educational Resources Information Center
McLendon, Jonathon C., Ed.
This major reference tool aims to identify for social studies teachers the best available reading materials selected from the overwhelming outpouring of writings of the 1960's and early 1970's. Organized by sections and topics of the sort that social studies educators are likely to explore, the book's thirty one chapter focus on (1) The Social…
English Department Midi Course Curriculum for Juniors and Seniors at Norton High School.
ERIC Educational Resources Information Center
Zwicker, Lucille; And Others
This curriculum guide presents syllabi for seventeen ten-week "midi-courses" for juniors and seniors in high school. For each course, the syllabi contain a course description, goals, subject matter, materials, an annotated list of audio-visual aids, a list of behavioral objectives, some suggested activities, a glossary of terms, and a selection of…
Phenotypic Variation in Specific Gravity and Fiber Length of Cherrybark Oak
R. E. Farmer
1969-01-01
Knowledge of variation in oakwood properties that are related to pulp yield and quality is essential in genetic improvement research. Two important properties that can be studied easily are specific gravity and fiber length. This paper reports a study made to develop a guide to field selection of breeding material in cherrybark oak (Quercus falcala...
ERIC Educational Resources Information Center
Illinois Univ., Urbana. Office of Agricultural Communications and Education.
This curriculum guide contains five units with relevant problem areas for horticulture. These problem areas have been selected as suggested areas of study to be included in a core curriculum for secondary students enrolled in an agricultural education program. Each problem area includes some or all of the following components: related problem…
ERIC Educational Resources Information Center
Center for Applied Linguistics, Arlington, VA.
The purpose of this bulletin is to provide the American teacher or sponsor with information on the use, limitations and availability of dictionaries that can be used by Indochinese refugees. The introductory material contains descriptions of both monolingual and bilingual dictionaries, a discussion of the inadequacies of bilingual dictionaries in…
The Prediction of Performance in Navy Signalman Class "A" School. TAEG Report No. 90.
ERIC Educational Resources Information Center
Mew, Dorothy V.
A study designed to develop a selection model for the prediction of Signalman performance in sending and receiving Morse code and to evaluate training strategies was conducted with 180 Navy and Coast Guard enlisted men. Trainees were taught to send Morse code using innovative training materials (mnemonics and guided practice). High and average…
Selective Removal of Natural Occlusal Caries by Coupling Near-infrared Imaging with a CO2 Laser
Tao, You-Chen; Fried, Daniel
2011-01-01
Laser removal of dental hard tissue can be combined with optical, spectral or acoustic feedback systems to selectively ablate dental caries and restorative materials. Near-infrared (NIR) imaging has considerable potential for the optical discrimination of sound and demineralized tissue. Last year we successfully demonstrated that near-IR images can be used to guide a CO2 laser ablation system for the selective removal of artificial caries lesions on smooth surfaces. The objective of this study was to test the hypothesis that two-dimensional near-infrared images of natural occlusal caries can be used to guide a CO2 laser for selective removal. Two-dimensional NIR images were acquired at 1310-nm of extracted human molar teeth with occlusal caries. Polarization sensitive optical coherence tomography (PS-OCT) was also used to acquire depth-resolved images of the lesion areas. An imaging processing module was developed to analyze the NIR imaging output and generate optical maps that were used to guide a CO2 laser to selectively remove the lesions at a uniform depth. Post-ablation NIR images were acquired to verify caries removal. Based on the analysis of the NIR images, caries lesions were selectively removed with a CO2 laser while sound tissues were conserved. However, the removal rate varied markedly with the severity of decay and multiple passes were required for caries removal. These initial results are promising but indicate that the selective removal of natural caries is more challenging than the selective removal of artificial lesions due to varying tooth geometry, the highly variable organic/mineral ratio in natural lesions and more complicated lesion structure. PMID:21909225
Selective removal of natural occlusal caries by coupling near-infrared imaging with a CO II laser
NASA Astrophysics Data System (ADS)
Tao, You-Chen; Fried, Daniel
2008-02-01
Laser removal of dental hard tissue can be combined with optical, spectral or acoustic feedback systems to selectively ablate dental caries and restorative materials. Near-infrared (NIR) imaging has considerable potential for the optical discrimination of sound and demineralized tissue. Last year we successfully demonstrated that near-IR images can be used to guide a CO2 laser ablation system for the selective removal of artificial caries lesions on smooth surfaces. The objective of this study was to test the hypothesis that two-dimensional near-infrared images of natural occlusal caries can be used to guide a CO2 laser for selective removal. Two-dimensional NIR images were acquired at 1310-nm of extracted human molar teeth with occlusal caries. Polarization sensitive optical coherence tomography (PS-OCT) was also used to acquire depth-resolved images of the lesion areas. An imaging processing module was developed to analyze the NIR imaging output and generate optical maps that were used to guide a CO2 laser to selectively remove the lesions at a uniform depth. Post-ablation NIR images were acquired to verify caries removal. Based on the analysis of the NIR images, caries lesions were selectively removed with a CO2 laser while sound tissues were conserved. However, the removal rate varied markedly with the severity of decay and multiple passes were required for caries removal. These initial results are promising but indicate that the selective removal of natural caries is more challenging than the selective removal of artificial lesions due to varying tooth geometry, the highly variable organic/mineral ratio in natural lesions and more complicated lesion structure.
Selective Removal of Natural Occlusal Caries by Coupling Near-infrared Imaging with a CO(2) Laser.
Tao, You-Chen; Fried, Daniel
2008-03-01
Laser removal of dental hard tissue can be combined with optical, spectral or acoustic feedback systems to selectively ablate dental caries and restorative materials. Near-infrared (NIR) imaging has considerable potential for the optical discrimination of sound and demineralized tissue. Last year we successfully demonstrated that near-IR images can be used to guide a CO(2) laser ablation system for the selective removal of artificial caries lesions on smooth surfaces. The objective of this study was to test the hypothesis that two-dimensional near-infrared images of natural occlusal caries can be used to guide a CO(2) laser for selective removal. Two-dimensional NIR images were acquired at 1310-nm of extracted human molar teeth with occlusal caries. Polarization sensitive optical coherence tomography (PS-OCT) was also used to acquire depth-resolved images of the lesion areas. An imaging processing module was developed to analyze the NIR imaging output and generate optical maps that were used to guide a CO(2) laser to selectively remove the lesions at a uniform depth. Post-ablation NIR images were acquired to verify caries removal. Based on the analysis of the NIR images, caries lesions were selectively removed with a CO(2) laser while sound tissues were conserved. However, the removal rate varied markedly with the severity of decay and multiple passes were required for caries removal. These initial results are promising but indicate that the selective removal of natural caries is more challenging than the selective removal of artificial lesions due to varying tooth geometry, the highly variable organic/mineral ratio in natural lesions and more complicated lesion structure.
Atomically precise (catalytic) particles synthesized by a novel cluster deposition instrument
Yin, C.; Tyo, E.; Kuchta, K.; ...
2014-05-06
Here, we report a new high vacuum instrument which is dedicated to the preparation of well-defined clusters supported on model and technologically relevant supports for catalytic and materials investigations. The instrument is based on deposition of size selected metallic cluster ions that are produced by a high flux magnetron cluster source. Furthermore, we maximize the throughput of the apparatus by collecting and focusing ions utilizing a conical octupole ion guide and a linear ion guide. The size selection is achieved by a quadrupole mass filter. The new design of the sample holder provides for the preparation of multiple samples onmore » supports of various sizes and shapes in one session. After cluster deposition onto the support of interest, samples will be taken out of the chamber for a variety of testing and characterization.« less
Selective removal of esthetic composite restorations with spectral guided laser ablation
NASA Astrophysics Data System (ADS)
Yi, Ivana; Chan, Kenneth H.; Tsuji, Grant H.; Staninec, Michal; Darling, Cynthia L.; Fried, Daniel
2016-02-01
Dental composites are used for a wide range of applications such as fillings for cavities, adhesives for orthodontic brackets, and closure of gaps (diastemas) between teeth by esthetic bonding. Anterior restorations are used to replace missing, diseased and unsightly tooth structure for both appearance and function. When these restorations must be replaced, they are difficult to remove mechanically without causing excessive removal or damage to enamel because dental composites are color matched to teeth. Previous studies have shown that CO2 lasers have high ablation selectivity and are well suited for removal of composite on occlusal surfaces while minimizing healthy tissue loss. A spectral feedback guidance system may be used to discriminate between dental composite and dental hard tissue for selective ablation of composite material. The removal of composite restorations filling diastemas is more challenging due to the esthetic concern for anterior teeth. The objective of this study is to determine if composite spanning a diastema between anterior teeth can be removed by spectral guided laser ablation at clinically relevant rates with minimal damage to peripheral healthy tissue and with higher selectivity than a high speed dental handpiece.
Topological materials discovery using electron filling constraints
NASA Astrophysics Data System (ADS)
Chen, Ru; Po, Hoi Chun; Neaton, Jeffrey B.; Vishwanath, Ashvin
2018-01-01
Nodal semimetals are classes of topological materials that have nodal-point or nodal-line Fermi surfaces, which give them novel transport and topological properties. Despite being highly sought after, there are currently very few experimental realizations, and identifying new materials candidates has mainly relied on exhaustive database searches. Here we show how recent studies on the interplay between electron filling and nonsymmorphic space-group symmetries can guide the search for filling-enforced nodal semimetals. We recast the previously derived constraints on the allowed band-insulator fillings in any space group into a new form, which enables effective screening of materials candidates based solely on their space group, electron count in the formula unit, and multiplicity of the formula unit. This criterion greatly reduces the computation load for discovering topological materials in a database of previously synthesized compounds. As a demonstration, we focus on a few selected nonsymmorphic space groups which are predicted to host filling-enforced Dirac semimetals. Of the more than 30,000 entires listed, our filling criterion alone eliminates 96% of the entries before they are passed on for further analysis. We discover a handful of candidates from this guided search; among them, the monoclinic crystal Ca2Pt2Ga is particularly promising.
Fiber optic device for sensing the presence of a gas
Benson, David K.; Bechinger, Clemens S.; Tracy, C. Edwin
1998-01-01
A fiber-optic device for sensing the presence of a gas in an environment is provided. The device comprises a light source for directing a light beam to a layer system having a first surface and a second surface opposite the first surface. The first surface is exposable to the light beam and the second surface is exposable to the environment. A first light portion encounters and reflects from the first surface at an angle of incidence free from optical wave guide resonance phenomenon and the second light portion encounters and reflects from the first surface at an angle of incidence enabling an optical wave guide resonance phenomenon. The layer system is selected to reversibly react with the gas to be detected. The reaction between the gas and the material changes the material's optical properties and the wavelength at which the optical wave guide resonance occurs. Furthermore, a mechanism for measuring the intensity of the reflected first light portion relative to the reflected second light portion is provided with the ratio of the first and second light portions indicating the concentration of the gas presence in the environment.
Fritz, Jan; Dellon, A Lee; Williams, Eric H; Rosson, Gedge D; Belzberg, Allan J; Eckhauser, Frederick E
2017-10-01
Purpose To determine if 3-T magnetic resonance (MR) neurography-guided retroperitoneal genitofemoral nerve (GFN) blocks are safe and effective for the diagnosis of genitofemoral neuralgia. Materials and Methods Following institutional review board approval and informed consent, 26 subjects (16 men, 10 women; mean age, 42 years [range, 24-78 years]; mean body mass index, 28 kg/m 2 [range, 20-35 kg/m 2 ]) with intractable groin pain were included. By using a 3-T MR imaging system, intermediate-weighted turbo spin-echo pulse sequences, and MR-conditional needles, diagnostic MR neurography-guided GFN blocks were performed in the retroperitoneum. Outcome variables included technical success, procedure time, complications, and rates of positive and negative GFN blocks in association with therapeutic outcomes. For the assessment of a learning curve, Mann-Whitney test was used. P values ≤ .05 were considered to indicate a statistically significant difference. Results In 26 subjects, 30 retroperitoneal GFN blocks were performed. Twelve (40%) were performed with an anterior needle path, 12 (40%) with a lateral needle path, and six (20%) with a posterior needle path. GFN blocks were technically successful in 24 of 26 (92%) subjects, achieving appropriate scrotal anesthesia. No complications occurred. The time required for a GFN block was 40 minutes (range, 18-67 minutes). The rate of a successful GFN intervention after a positive GFN block was 88% (14 of 16). The rate of a successful intervention of an alternative target after a negative GFN block was 71% (five of seven). Conclusion Selective retroperitoneally directed MR neurography-guided GFN blocks are safe and effective with high technical success and positive effect on surgical decision making in patients with presumed genitofemoral neuralgia. © RSNA, 2017 Online supplemental material is available for this article.
Kokaly, Raymond F.; King, Trude V.V.; Hoefen, Todd M.; Dudek, Kathleen B.; Livo, Keith E.
2012-01-01
This map shows the distribution of selected carbonates, phyllosilicates, sulfates, altered minerals, and other materials derived from analysis of HyMap imaging spectrometer data of Afghanistan. Using a NASA (National Aeronautics and Space Administration) WB-57 aircraft flown at an altitude of ~15,240 meters or ~50,000 feet, 218 flight lines of data were collected over Afghanistan between August 22 and October 2, 2007. The HyMap data were converted to apparent surface reflectance, then further empirically adjusted using ground-based reflectance measurements. The reflectance spectrum of each pixel of HyMap data was compared to the spectral features of reference entries in a spectral library of minerals, vegetation, water, ice, and snow. This map shows the spatial distribution of minerals that have diagnostic absorption features in the shortwave infrared wavelengths. These absorption features result primarily from characteristic chemical bonds and mineralogical vibrations. Several criteria, including (1) the reliability of detection and discrimination of minerals using the HyMap spectrometer data, (2) the relative abundance of minerals, and (3) the importance of particular minerals to studies of Afghanistan's natural resources, guided the selection of entries in the reference spectral library and, therefore, guided the selection of mineral classes shown on this map. Minerals occurring abundantly at the surface and those having unique spectral features were easily detected and discriminated. Minerals having similar spectral features were less easily discriminated, especially where the minerals were not particularly abundant and (or) where vegetation cover reduced the absorption strength of mineral features. Complications in reflectance calibration also affected the detection and identification of minerals.
Effects of shade tab arrangement on the repeatability and accuracy of shade selection.
Yılmaz, Burak; Yuzugullu, Bulem; Cınar, Duygu; Berksun, Semih
2011-06-01
Appropriate and repeatable shade matching using visual shade selection remains a challenge for the restorative dentist. The purpose of this study was to evaluate the effect of different arrangements of a shade guide on the repeatability and accuracy of visual shade selection by restorative dentists. Three Vitapan Classical shade guides were used for shade selection. Seven shade tabs from one shade guide were used as target shades for the testing (A1, A4, B2, B3, C2, C4, and D3); the other 2 guides were used for shade selection by the subjects. One shade guide was arranged according to hue and chroma and the second was arranged according to value. Thirteen male and 22 female restorative dentists were asked to match the target shades using shade guide tabs arranged in the 2 different orders. The sessions were performed twice with each guide in a viewing booth. Collected data were analyzed with Fisher's exact test to compare the accuracy and repeatability of the shade selection (α=.05). There were no significant differences observed in the accuracy or repeatability of the shade selection results obtained with the 2 different arrangements. When the hue/chroma-ordered shade guide was used, 58% of the shade selections were accurate. This ratio was 57.6% when the value-ordered shade guide was used. The observers repeated 55.5% of the selections accurately with the hue/chroma-ordered shade guide and 54.3% with the value-ordered shade guide. The accuracy and repeatability of shade selections by restorative dentists were similar when different arrangements (hue/chroma-ordered and value-ordered) of the Vitapan Classical shade guide were used. Copyright © 2011 The Editorial Council of the Journal of Prosthetic Dentistry. Published by Mosby, Inc. All rights reserved.
Chan, Kenneth H; Fried, Daniel
2012-02-09
Lasers can ablate/remove tissue in a non-contact mode of operation and a pulsed laser beam does not interfere with the ability to image the tooth surface, therefore lasers are ideally suited for integration with imaging devices for image-guided ablation. Laser energy can be rapidly and efficiently delivered to tooth surfaces using a digitally controlled laser beam scanning system for precise and selective laser ablation with minimal loss of healthy tissues. Under the appropriate irradiation conditions such laser energy can induce beneficial chemical and morphological changes in the walls of the drilled cavity that can increase resistance to further dental decay and produce surfaces with enhanced adhesive properties to restorative materials. Previous studies have shown that images acquired using near-IR transillumination, optical coherence tomography and fluorescence can be used to guide the laser for selective removal of demineralized enamel. Recent studies have shown that NIR reflectance measurements at 1470-nm can be used to obtain images of enamel demineralization with very high contrast. The purpose of this study was to demonstrate that image guided ablation of occlusal lesions can be successfully carried out using a NIR reflectance imaging system coupled with a carbon dioxide laser operating at 9.3-μm with high pulse repetition rates.
Materials Research Capabilities
NASA Technical Reports Server (NTRS)
Stofan, Andrew J.
1986-01-01
Lewis Research Center, in partnership with U.S. industry and academia, has long been a major force in developing advanced aerospace propulsion and power systems. One key aspect that made many of these systems possible has been the availability of high-performance, reliable, and long-life materials. To assure a continuing flow of new materials and processing concepts, basic understanding to guide such innovation, and technological support for development of major NASA systems, Lewis has supported a strong in-house materials research activity. Our researchers have discovered new alloys, polymers, metallic composites, ceramics, coatings, processing techniques, etc., which are now also in use by U.S. industry. This brochure highlights selected past accomplishments of our materials research and technology staff. It also provides many examples of the facilities available with which we can conduct materials research. The nation is now beginning to consider integrating technology for high-performance supersonic/hypersonic aircraft, nuclear space power systems, a space station, and new research areas such as materials processing in space. As we proceed, I am confident that our materials research staff will continue to provide important contributions which will help our nation maintain a strong technology position in these areas of growing world competition. Lewis Research Center, in partnership with U.S. industry and academia, has long been a major force in developing advanced aerospace propulsion and power systems. One key aspect that made many of these systems possible has been the availability of high-performance, reliable, and long-life materials. To assure a continuing flow of new materials and processing concepts, basic understanding to guide such innovation, and technological support for development of major NASA systems, Lewis has supported a strong in-house materials research activity. Our researchers have discovered new alloys, polymers, metallic composites, ceramics, coatings, processing techniques, etc., which are now also in use by U.S. industry. This brochure highlights selected past accomplishments of our materials research and technology staff. It also provides many examples of the facilities available with which we can conduct materials research. The nation is now beginning to consider integrating technology for high-performance supersonic/hypersonic aircraft, nuclear space power systems, a space station, and new research areas such as materials processing in space.
Food and Nutrition. Volume II. Units VI-VIII: Fruit, Fats, Vegetables, Legumes, Grains, Meats.
ERIC Educational Resources Information Center
Honse, Elizabeth Linsenbardt
These instructional materials are intended as a guide for the instructor of a secondary home economics course in food and nutrition. Topics covered in the three units are time, energy, and resource management; selection, care, preparation, and storage of food (seven lessons on dairy foods; fats and oils; cereals and breads; fruits and vegetables;…
Arc Welding-Pipe, 3-25. Military Curriculum Materials for Vocational and Technical Education.
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This instructor guide and text for a secondary-postsecondary level course in arc welding-pipe comprise one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. Purpose of the course is to teach students to weld 5-inch mild steel schedule 80 pipe,…
A Summary--The Economics of Carpeting and Resilient Flooring. An Evaluation and Comparison.
ERIC Educational Resources Information Center
Parks, George M.
Of use to those concerned with the economics of flooring selection and maintenance, this comparison may prove useful as an estimating guide in the preparation of cost estimates for any flooring area where economics is a factor in the choice of materials. All costs attributed to carpet or resilient flooring have been obtained either by survey or…
ERIC Educational Resources Information Center
Illinois Univ., Urbana. Office of Agricultural Communications and Education.
This curriculum guide contains 5 teaching units for 44 agricultural business and management cluster problem areas. These problem areas have been selected as suggested areas of study to be included in a core curriculum for secondary students enrolled in an agricultural education program. The five units are as follows: (1) agribusiness operation and…
Strand I: Physical Health Nutrition. Health Curriculum Materials. Grades 4-6.
ERIC Educational Resources Information Center
New York State Education Dept., Albany. Bureau of Elementary Curriculum Development.
GRADES OR AGES: Grades 4-6. SUBJECT MATTER: Physical health and nutrition. ORGANIZATION AND PHYSICAL APPEARANCE: The guide is divided into five sections: factors determining what people eat, the role of food in growth and development, the uses of nutrients in food, selection of foods to meet bodily needs, and food in the history of man. The…
ERIC Educational Resources Information Center
Renard, Colette; And Others
Principles of the "St. Cloud" audiovisual language instruction methodology based on "Le Francais fondamental" are presented in this guide for teachers. The material concentrates on course content, methodology, and application--including criteria for selection and gradation of course content, a description of the audiovisual and written language…
Things You "Auto" Know When Buying a Car. Teacher's Guide [and] Student Material.
ERIC Educational Resources Information Center
Bookout, Janet
This unit provides high school students with criteria for deciding to buy a new or used car and selecting a reputable dealer. It is divided into three sections. In the first section students analyze uses and identify car sizes, options, and appearances that are important. The second section describes advantages and disadvantages of new and used…
ERIC Educational Resources Information Center
Boon, Belinda
The method called CREW (Continuous Review, Evaluation, and Weeding) integrates material selection and acquisition, cataloging and processing, and circulation and reference into one ongoing routine that assures that all the necessary indirect services are accomplished in an effective way. This revision of the original guide, published in 1976,…
Quasi-Uniform High Speed Foam Crush Testing Using a Guided Drop Mass Impact
NASA Technical Reports Server (NTRS)
Jones, Lisa E. (Technical Monitor); Kellas, Sotiris
2004-01-01
A relatively simple method for measuring the dynamic crush response of foam materials at various loading rates is described. The method utilizes a drop mass impact configuration with mass and impact velocity selected such that the crush speed remains approximately uniform during the entire sample crushing event. Instrumentation, data acquisition, and data processing techniques are presented, and limitations of the test method are discussed. The objective of the test method is to produce input data for dynamic finite element modeling involving crash and energy absorption characteristics of foam materials.
A Wide Band Absorbing Material Design Using Band-Pass Frequency Selective Surface
NASA Astrophysics Data System (ADS)
Xu, Yonggang; Xu, Qiang; Liu, Ting; Zheng, Dianliang; Zhou, Li
2018-03-01
Based on the high frequency advantage characteristics of the Fe based absorbing coating, a method for designing the structure of broadband absorbing structure by using frequency selective surface (FSS) is proposed. According to the transmission and reflection characteristic of the different size FSS structure, the frequency variation characteristic was simulated. Secondly, the genetic algorithm was used to optimize the high frequency broadband absorbing materials, including the single and double magnetic layer material. Finally, the absorbing characteristics in iron layer were analyzed as the band pass FSS structure was embedded, the results showed that the band-pass FSS had the influence on widening the absorbing frequency. As the FSS was set as the bottom layer, it was effective to achieve the good absorbing property in low frequency and the high frequency absorbing performance was not weakened, because the band-pass FSS led the low frequency absorption and the high frequency shielding effect. The results of this paper are of guiding significance for designing and manufacturing the broadband absorbing materials.
Asphaltic concrete overlays of rigid and flexible pavements
NASA Astrophysics Data System (ADS)
Kinchen, R. W.; Temple, W. H.
1980-10-01
The development of a mechanistic approach to overlay thickness selection is described. The procedure utilizes a deflection analysis to determine pavement rehabilitation needs. Design guides for selecting the overlay thickness are presented. Tolerable deflection-traffic load relationships and the deflection attenuation properties of asphaltic concrete were developed, representing the subgrade support conditions and properties of materials used in Louisiana. All deflection measurements on asphaltic concrete were corrected for the effect of temperature. Deflection measurements taken before and after overlay were also adjusted to minimize the effects of seasonal subgrade moisture variation.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-06-15
... Receiving Packages of Radioactive Material AGENCY: Nuclear Regulatory Commission. ACTION: Notice of... Guide (RG) 7.3, ``Procedures for Picking Up and Receiving Packages of Radioactive Material.'' The guide..., ``Administrative Guide for Verifying Compliance with Packaging Requirements for Shipment and Receipt of Radioactive...
Molecular biomimetics: utilizing nature's molecular ways in practical engineering.
Tamerler, Candan; Sarikaya, Mehmet
2007-05-01
In nature, proteins are the machinery that accomplish many functions through their specific recognition and interactions in biological systems from single-celled to multicellular organisms. Biomolecule-material interaction is accomplished via molecular specificity, leading to the formation of controlled structures and functions at all scales of dimensional hierarchy. Through evolution, molecular recognition and, consequently, functions developed through successive cycles of mutation and selection. Using biology as a guide, we can now understand, engineer and control peptide-material interactions and exploit these to tailor novel materials and systems for practical applications. We adapted combinatorial biology protocols to display peptide libraries, either on the cell surface or on phages, to select short peptides specific to a variety of practical materials systems. Following the selection step, we determined the kinetics and stability of peptide binding experimentally to understand the bound peptide structure via modeling and its assembly via atomic force microscopy. The peptides were further engineered to have multiple repeats or their amino acid sequences varied to tailor their function. Both nanoparticles and flat inorganic substrates containing multimaterials patterned at the nano- and microscales were used for self-directed immobilization of molecular constructs. The molecular biomimetic approach opens up new avenues for the design and utilization of multifunctional molecular systems with wide ranging applications, from tissue engineering, drug delivery and biosensors, to nanotechnology and bioremediation. Here we give examples of protein-mediated functional materials in biology, peptide selection and engineering with affinity to inorganics, demonstrate potential utilizations in materials science, engineering and medicine, and describe future prospects.
Towards improved NDE and SHM methodologies incorporating nonlinear structural features
NASA Astrophysics Data System (ADS)
Chillara, Vamshi Krishna
Ultrasound is widely employed in Nondestructive Evaluation (NDE) and Structural Health Monitoring (SHM) applications to detect and characterize damage/defects in materials. In particular, ultrasonic guided waves are considered a foremost candidate for in-situ monitoring applications. Conventional ultrasonic techniques rely on changes/discontinuities in linear elastic material properties, namely the Young's modulus and shear modulus to detect damage. On the other hand, nonlinear ultrasonic techniques that rely on micro-scale nonlinear material/structural behavior are proven to be sensitive to damage induced microstructural changes that precede macro-scale damage and are hence capable of early damage detection. The goal of this thesis is to investigate the capabilities of nonlinear guided waves --- a fusion of nonlinear ultrasonic techniques with the guided wave methodologies for early damage detection. To that end, the thesis focuses on two important aspects of the problem: 1. Wavemechanics - deals with ultrasonic guided wave propagation in nonlinear waveguides; 2. Micromechanics - deals with correlating ultrasonic response with micro-scale nonlinear material behavior. For the development of efficient NDE and SHM methodologies that incorporate nonlinear structural features, a detailed understanding of the above aspects is indispensable. In this thesis, the wavemechanics aspect of the problem is dealt with from both theoretical and numerical standpoints. A generalized theoretical framework is developed to study higher harmonic guided waves in plates. This was employed to study second harmonic guided waves in pipes using a large-radius asymptotic approximation. Second harmonic guided waves in plates are studied from a numerical standpoint. Theoretical predictions are validated and some key aspects of higher harmonic generation in waveguides are outlined. Finally, second harmonic guided waves in plates with inhomogeneous and localized nonlinearities are studied and some important aspects of guided wave mode selection are addressed. The other part of the work focused on developing a micromechanics based understanding of ultrasonic higher harmonic generation. Three important aspects of micro-scale material behavior, namely tension-compression asymmetry, shearnormal coupling and deformation induced asymmetry are identified and their role in ultrasonic higher harmonic generation is discussed. Tension-compression asymmetry is identified to cause second (even) harmonic generation in materials. Then, shearnormal coupling is identified to cause generation of secondary waves of different polarity than the primary waves. In addition, deformation induced anisotropy due to the presence of residual stress/strain and its contribution to ultrasonic higher harmonic generation is qualitatively discussed. Also, the tension-compression asymmetry in the material is quantified using an energy based measure. The above measure is employed to develop a homogenization based approach amenable to multi-scale analysis to correlate microstructure with ultrasonic higher harmonic generation. Finally, experimental investigations concerning third harmonic SH wave generation in plates are carried out and the effect of load and temperature changes on nonlinear ultrasonic measurements are discussed in the context of SHM. It was found that while nonlinear ultrasound is sensitive to micro-scale damage, the relative nonlinearity parameter may not always be the best measure to quantify the nonlinearity as it is subject to spurious effects from changes in environmental factors such as loads and temperature.
NASA Astrophysics Data System (ADS)
Hasanian, Mostafa; Lissenden, Cliff J.
2017-08-01
The extraordinary sensitivity of nonlinear ultrasonic waves to the early stages of material degradation makes them excellent candidates for nondestructive material characterization. However, distinguishing weak material nonlinearity from instrumentation nonlinearity remains problematic for second harmonic generation approaches. A solution to this problem is to mix waves having different frequencies and to let their mutual interaction generate sum and difference harmonics at frequencies far from those of the instrumentation. Mixing of bulk waves and surface waves has been researched for some time, but mixing of guided waves has not yet been investigated in depth. A unique aspect of guided waves is their dispersive nature, which means we need to assure that a wave can propagate at the sum or difference frequency. A wave vector analysis is conducted that enables selection of primary waves traveling in any direction that generate phase matched secondary waves. We have tabulated many sets of primary waves and phase matched sum and difference harmonics. An example wave mode triplet of two counter-propagating collinear shear horizontal waves that interact to generate a symmetric Lamb wave at the sum frequency is simulated using finite element analysis and then laboratory experiments are conducted. The finite element simulation eliminates issues associated with instrumentation nonlinearities and signal-to-noise ratio. A straightforward subtraction method is used in the experiments to identify the material nonlinearity induced mutual interaction and show that the generated Lamb wave propagates on its own and is large enough to measure. Since the Lamb wave has different polarity than the shear horizontal waves the material nonlinearity is clearly identifiable. Thus, the mutual interactions of shear horizontal waves in plates could enable volumetric characterization of material in remote regions from transducers mounted on just one side of the plate.
NASA Astrophysics Data System (ADS)
Hwang, Hayoung; Shin, Jung-ho; Lee, Kang Yeol; Choi, Wonjoon
2018-01-01
Precise phase-transformation can facilitate control of the properties of various materials, while an organic coating surrounding inorganic materials can yield useful characteristics. Herein, we demonstrate facile, selective manipulation of micro-nanostructured bismuth oxide (Bi2O3) for phase transformation from microflower-like β-Bi2O3 to micropill-like α-Bi2O3, with carbon-coating layer deposition, using structure-guided combustion waves (SGCWs). Microflower-like β-Bi2O3 are synthesized as core materials and nitrocellulose is coated on their surfaces for the formation of core-shell hybrid structures of Bi2O3 and chemical fuel. The SGCWs, which propagate along the core-material and fuel interfaces, apply high thermal energy (550-600 °C) and deposit incompletely combusted carbonaceous fuel on the microflower-like β-Bi2O3 to enable transformation to α-phase and carbon-coating-layer synthesis. SGCW-induced improvements to the electrochemical characteristics of the developed micropill-like α-Bi2O3@C, compared with the microflower-like β-Bi2O3, are investigated. The enhanced stability from the α-phase Bi2O3 and micropill-like structures during charge-discharge cycling improves the specific capacitance, while the carbon-coating layers facilitate increased electrical conductivity. SGCW-based methods exhibit high potential for selective phase manipulation and synthesis of carbon coatings surrounding micro-nanomaterials. They constitute a low-cost, fast, large-scale process for metal oxides, ceramics, and hybrid materials, implemented through control of the processing parameters by tuning the temperature, chemical fuel, and ambient conditions.
School Site Selection and Approval Guide.
ERIC Educational Resources Information Center
California State Dept. of Education, Sacramento. Div. of School Facilities Planning.
This guide is designed to assist school districts in selecting school sites that provide both a safe and supportive environment for the instructional program and the learning process, and gain state approval for the selected sites. The guide includes a set of selection criteria that have proven helpful to site selection teams, information about…
The effect of interface properties on nickel base alloy composites
NASA Technical Reports Server (NTRS)
Groves, M.; Grossman, T.; Senemeier, M.; Wright, K.
1995-01-01
This program was performed to assess the extent to which mechanical behavior models can predict the properties of sapphire fiber/nickel aluminide matrix composites and help guide their development by defining improved combinations of matrix and interface coating. The program consisted of four tasks: 1) selection of the matrices and interface coating constituents using a modeling-based approach; 2) fabrication of the selected materials; 3) testing and evaluation of the materials; and 4) evaluation of the behavior models to develop recommendations. Ni-50Al and Ni-20AI-30Fe (a/o) matrices were selected which gave brittle and ductile behavior, respectively, and an interface coating of PVD YSZ was selected which provided strong bonding to the sapphire fiber. Significant fiber damage and strength loss was observed in the composites which made straightforward comparison of properties with models difficult. Nevertheless, the models selected generally provided property predictions which agreed well with results when fiber degradation was incorporated. The presence of a strong interface bond was felt to be detrimental in the NiAI MMC system where low toughness and low strength were observed.
ERIC Educational Resources Information Center
Nesbitt, William A., Ed.
A broad coverage of the war/peace field is represented by the items in this annotated bibliography and resource guide. It attempts to provide some solutions to questions about what to teach, how to teach it, and, of course, where to find materials. Both disciplines and topics appropriate to social studies courses are represented by books of…
NASA Technical Reports Server (NTRS)
Hadden, G. B.; Kleckner, R. J.; Ragen, M. A.; Dyba, G. J.; Sheynin, L.
1981-01-01
The material presented is structured to guide the user in the practical and correct implementation of PLANETSYS which is capable of simulating the thermomechanical performance of a multistage planetary power transmission. In this version of PLANETSYS, the user can select either SKF or NASA models in calculating lubricant film thickness and traction forces.
ERIC Educational Resources Information Center
Housmam, John L.; And Others
The instructor's guide is coordinated for use with the student guide. The guide includes suggestions for teacher preparation, equipment and supply needs, suggested references, available audiovisual materials, open-ended questions for classroom discussion, educational opportunities for students, and a form for student evaluation of the study guide.…
ERIC Educational Resources Information Center
Woolman, David C.
This guide provides an introduction to many different types and sources of social studies materials. The guide is divided into three sections representing classroom material, outreach activities, and professional resources. Each section is subdivided by resource type. Larger sections use categories to facilitate location of material by curriculum…
Implementation of the Leaching Environmental Assessment ...
LEAF provides a uniform and integrated approach for evaluating leaching from solid materials (e.g., waste, treated wastes such as by solidification/stabilization, secondary materials such as blast furnace slags, energy residuals such as coal fly ash, soil, sediments, mining and mineral processing wastes). Assessment using LEAF applies a stepwise approach that considers the leaching behavior of COPCs in response to chemical and physical factors that control and material properties across a range of plausible field conditions (US EPA, 2010). The framework provides the flexibility to tailor testing to site conditions and select the extent of testing based on assessment objectives and the level of detailed information needed to support decision-making. The main focus will be to discuss the implementation of LEAF in the US and the How to Guide that has recently been completed. To present the How To Guide for the implementation of the leaching environmental assessment framework to an international audience already familiar with comparable leaching tests in use in Europe. Will be meeting with European colleagues on their interest in expanding methods to include organics.
1992-01-01
Southern Asian population education programs have developed common materials on population and family life education. Countries involved were Bangladesh, India, Nepal, Pakistan, and Sri Lanka. The development of materials occurred as a byproduct of workshop conducted in Nepal from December 3-7, 1990 and December 2-10, 1991 in Sri Lanka. The 1st meeting was organized by UNESCO's Population Education Advisory team, and 6 curriculum topics were identified. Pretesting of materials was conducted between meetings. The final product was a set of 10 posters and 2 comic strips on the quality of life developed by India for elementary level use; a family life and sex education syllabus developed by Sri Lanka for secondary school use; 5 modules with teacher's guides and sample lessons for secondary school use; 5 modules and a teacher's guide on transmission of values on population education by Pakistan; 25 flip charts on maternal and child health for illiterates developed by Nepal; and a field guide on environmental protection for nonformal field workers developed by Bangladesh. Materials were designed through brainstorming sessions, designing of materials by experts, review by other groups, and retesting on target audiences. Revision followed pretesting. The plan for assuring use of materials was to have UNESCO print prototypes and then participants would seek financial support for country supplies. A suggestion was made to leave ample space for insertion of local language captions. Another suggestion was that the cartoon strip "Girls are Pearls" be printed on students' exercise books for all member countries. Member countries should also have available selected materials translated into English and distributed. UNESCO should continue to play the role of facilitator of information and expertise exchange among member countries. Another mutually cooperative activity was the Group Training Course on Population Education for the South Asian subregion held in December 1991.
Wiseman working with BASS-II Experiment
2014-06-26
ISS040-E-021546 (26 June 2014) --- NASA astronaut Reid Wiseman, Expedition 40 flight engineer, conducts a combustion experiment known as the Burning and Suppression of Solids (BASS) inside the Microgravity Science Glovebox (MSG) located in the International Space Station?s Destiny laboratory. Without gravity, materials burn quite differently, with a spherical flame instead of the conical shape seen on Earth. BASS is studying the hypothesis that some materials may actually become more flammable in space. Results from BASS will help guide spacecraft materials selection and improve strategies for putting out accidental fires aboard spacecraft. The research also provides scientists with improved computational models that will aid in the design of fire detection and suppression systems here on Earth.
76 FR 11288 - Draft Regulatory Guide: Issuance, Availability
Federal Register 2010, 2011, 2012, 2013, 2014
2011-03-01
... Guide, DG-7008, ``Leakage Tests on Packages for Shipment of Radioactive Materials.'' FOR FURTHER... regulatory guide (DG), entitled, ``Leakage Tests on Packages for Shipment of Radioactive Materials'' is... Radioactive and Nonnuclear Hazardous Materials, N14, Subcommittee of the American National Standards Institute...
Application of scanning laser Doppler vibrometry for delamination detection in composite structures
NASA Astrophysics Data System (ADS)
Kudela, Pawel; Wandowski, Tomasz; Malinowski, Pawel; Ostachowicz, Wieslaw
2017-12-01
In this paper application of scanning laser Doppler vibrometry for delamination detection in composite structures was presented. Delamination detection was based on a guided wave propagation method. In this papers results from numerical and experimental research were presented. In the case of numerical research, the Spectral Element Method (SEM) was utilized, in which a mesh was composed of 3D spectral elements. SEM model included also a piezoelectric transducer. In the experimental research guided waves were excited using the piezoelectric transducer whereas the sensing process was conducted using scanning laser Doppler vibrometer (SLDV). Analysis of guided wave propagation and its interaction with delamination was based on a full wavefield approach. Attention was focused on interactions of guided waves with delamination manifested by A0 mode reflection, A0 mode entrapment, and S0/A0 mode conversion. Delamination was simulated by a teflon insert located between plies of composite material. Results of interaction with symmetrically and nonsymmetrical placed delamination (in respect to the composite sample thickness) were presented. Moreover, the authors investigated different size of delaminations. Damage detection was based on a new signal processing algorithm proposed by the authors. In this approach the weighted RMS was utilized selectively. It means that the summation in RMS formula was performed only for a specially selected time instances. Results for simple composite panels, panel with honeycomb core, and real stiffened composite panel from the aircraft were presented.
Favier-Archinard, Camille; Leguelinel-Blache, Géraldine; Dubois, Florent; Le Gall, Tanguy; Bourquard, Pascal; Passemard, Nadège; Tora, Sandrine; Rey, Aurélie; Rossi, Marie; Chevallier, Thierry; Cousin, Christelle; Favier, Mireille
2018-05-01
The safety of the community treatment with oral anticancer therapies is a strong theme of the cancer plan 2014-2019. The objective of this study was to develop a Pharmaceutical Counseling Guide to improve medication adherence in patients treated for multiple myeloma with oral anticancer therapies. A multidisciplinary professional working group selected a list of relevant medication adherence-related items that served as the framework for the design of the pharmaceutical counseling support materials in patient-accessible language. The readability, understanding and memorization of the information were validated in ten patients treated for myeloma. Twelve items were selected for treatment information (5 items), treatment planning (5 items), and adverse drug effects (2 items). A pharmacist guide, a patient guide, a medication schedule, and three self-questionnaires to evaluate medication knowledge and understanding of patients were developed. The patient test resulted in changes in these documents. This study carried out the initial validation of documents to standardize the pharmaceutical counseling for patients treated for myeloma so that it can be reproduced from one patient to another regardless of the pharmacist, by standardizing the information issued. This study needs to be completed by a final validation in myeloma patients, free from oral anticancer therapies. Copyright © 2018 Société Française du Cancer. Published by Elsevier Masson SAS. All rights reserved.
Plans, Patterns, and Move Categories Guiding a Highly Selective Search
NASA Astrophysics Data System (ADS)
Trippen, Gerhard
In this paper we present our ideas for an Arimaa-playing program (also called a bot) that uses plans and pattern matching to guide a highly selective search. We restrict move generation to moves in certain move categories to reduce the number of moves considered by the bot significantly. Arimaa is a modern board game that can be played with a standard Chess set. However, the rules of the game are not at all like those of Chess. Furthermore, Arimaa was designed to be as simple and intuitive as possible for humans, yet challenging for computers. While all established Arimaa bots use alpha-beta search with a variety of pruning techniques and other heuristics ending in an extensive positional leaf node evaluation, our new bot, Rat, starts with a positional evaluation of the current position. Based on features found in the current position - supported by pattern matching using a directed position graph - our bot Rat decides which of a given set of plans to follow. The plan then dictates what types of moves can be chosen. This is another major difference from bots that generate "all" possible moves for a particular position. Rat is only allowed to generate moves that belong to certain categories. Leaf nodes are evaluated only by a straightforward material evaluation to help avoid moves that lose material. This highly selective search looks, on average, at only 5 moves out of 5,000 to over 40,000 possible moves in a middle game position.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Achey, R.; Rivera, O.; Wellons, M.
Microporous zeolite adsorbent materials are widely used as a medium for separating gases. Adsorbent gas separation systems can run at ambient temperature and require minimal pressure to flow the input gas stream across the adsorbent bed. This allows for low energy consumption relative to other types of separation systems. Specific zeolites also have a high capacity and selectivity for the gases of interest, leading to compact and efficient separation systems. These characteristics are particularly advantageous for the application of signatures detection for non-proliferation, which often requires portable systems with low power draw. Savannah River National Laboratory currently is the leadermore » in using zeolites for noble gas sampling for non-proliferation detection platforms. However, there is a constant customer need for improved sampling capabilities. Development of improved zeolite materials will lead to improved sampling technology. Microwave-assisted and conventional hydrothermal synthesis have been used to make a variety of zeolites tailored for noble gas separation. Materials characterization data collected in this project has been used to help guide the synthesis of improved zeolite materials. Candidate materials have been down-selected based on highest available surface area, maximum overall capacity for gas adsorption and highest selectivity. The creation of improved adsorbent materials initiated in this project will lead to development of more compact, efficient and effective noble gas collectors and concentrators. The work performed in this project will be used as a foundation for funding proposals for further material development as well as possible industrial applications.« less
Air Force Systems Engineering Assessment Model (AF SEAM) Management Guide, Version 2
2010-09-21
gleaned from experienced professionals who assisted with the model’s development. Examples of the references used include the following: • ISO /IEC...Defense Acquisition Guidebook, Chapter 4 • AFI 63-1201, Life Cycle Systems Engineering • IEEE/EIA 12207 , Software Life Cycle Processes • Air...Selection criteria Reference Material: IEEE/EIA 12207 , MIL-HDBK-514 Other Considerations: Modeling, simulation and analysis techniques can be
Photonic guiding structures in lithium niobate crystals produced by energetic ion beams
NASA Astrophysics Data System (ADS)
Chen, Feng
2009-10-01
A range of ion beam techniques have been used to fabricate a variety of photonic guiding structures in the well-known lithium niobate (LiNbO3 or LN) crystals that are of great importance in integrated photonics/optics. This paper reviews the up-to-date research progress of ion-beam-processed LiNbO3 photonic structures and reports on their fabrication, characterization, and applications. Ion beams are being used with this material in a wide range of techniques, as exemplified by the following examples. Ion beam milling/etching can remove the selected surface regions of LiNbO3 crystals via the sputtering effects. Ion implantation and swift ion irradiation can form optical waveguide structures by modifying the surface refractive indices of the LiNbO3 wafers. Crystal ion slicing has been used to obtain bulk-quality LiNbO3 single-crystalline thin films or membranes by exfoliating the implanted layer from the original substrate. Focused ion beams can either generate small structures of micron or submicron dimensions, to realize photonic bandgap crystals in LiNbO3, or directly write surface waveguides or other guiding devices in the crystal. Ion beam-enhanced etching has been extensively applied for micro- or nanostructuring of LiNbO3 surfaces. Methods developed to fabricate a range of photonic guiding structures in LiNbO3 are introduced. Modifications of LiNbO3 through the use of various energetic ion beams, including changes in refractive index and properties related to the photonic guiding structures as well as to the materials (i.e., electro-optic, nonlinear optic, luminescent, and photorefractive features), are overviewed in detail. The application of these LiNbO3 photonic guiding structures in both micro- and nanophotonics are briefly summarized.
THE CONCISE GUIDE TO PHARMACOLOGY 2017/18: Overview.
Alexander, Stephen Ph; Kelly, Eamonn; Marrion, Neil V; Peters, John A; Faccenda, Elena; Harding, Simon D; Pawson, Adam J; Sharman, Joanna L; Southan, Christopher; Buneman, O Peter; Cidlowski, John A; Christopoulos, Arthur; Davenport, Anthony P; Fabbro, Doriano; Spedding, Michael; Striessnig, Jörg; Davies, Jamie A
2017-12-01
The Concise Guide to PHARMACOLOGY 2017/18 is the third in this series of biennial publications. This version provides concise overviews of the key properties of nearly 1800 human drug targets with an emphasis on selective pharmacology (where available), plus links to an open access knowledgebase of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. Although the Concise Guide represents approximately 400 pages, the material presented is substantially reduced compared to information and links presented on the website. It provides a permanent, citable, point-in-time record that will survive database updates. The full contents of this section can be found at http://onlinelibrary.wiley.com/doi/10.1111/bph.13882/full. In addition to this overview, in which are identified 'Other protein targets' which fall outside of the subsequent categorisation, there are eight areas of focus: G protein-coupled receptors, ligand-gated ion channels, voltage-gated ion channels, other ion channels, nuclear hormone receptors, catalytic receptors, enzymes and transporters. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading. The landscape format of the Concise Guide is designed to facilitate comparison of related targets from material contemporary to mid-2017, and supersedes data presented in the 2015/16 and 2013/14 Concise Guides and previous Guides to Receptors and Channels. It is produced in close conjunction with the Nomenclature Committee of the Union of Basic and Clinical Pharmacology (NC-IUPHAR), therefore, providing official IUPHAR classification and nomenclature for human drug targets, where appropriate. © 2017 The Authors. British Journal of Pharmacology published by John Wiley & Sons Ltd on behalf of British Pharmacological Society.
Paksoy, Nadir; Ozbek, Busra
2018-01-01
Over the last few decades, fine needle aspiration cytology (FNA) has emerged as a SAFE (Simple, Accurate, Fast, Economical) diagnostic tool based on the morphologic evaluation of cells. The first and most important step in obtaining accurate results from FNA is to procure sufficient and representative material from the lesion and to appropriately transfer this material to the laboratory. Unfortunately, the most important aspect of this task occurs beyond the control of the cytopathologist, a key reason for obtaining unsatisfactory results with FNA. There is growing interest in the field of cytology in "cytopathologist-performed ultrasound (US)-guided FNA," which has been reported to yield accurate results. The first author has been applying FNA in his own private cytopathology practice with a radiologist and under the guidance of US for more than 20 years. This study retrospectively reviews the utility of this practice. We present a selection of didactic examples under different headings that highlight the application of FNA by a cytopathologist, accompanied by US, under the guidance of a radiologist, in the form of an "outpatient FNA clinic." The use of this technique enhances diagnostic accuracy and prevents pitfalls. The highlights of each case are also outlined as "take-home messages."
A Data Envelopment Analysis Model for Selecting Material Handling System Designs
NASA Astrophysics Data System (ADS)
Liu, Fuh-Hwa Franklin; Kuo, Wan-Ting
The material handling system under design is an unmanned job shop with an automated guided vehicle that transport loads within the processing machines. The engineering task is to select the design alternatives that are the combinations of the four design factors: the ratio of production time to transportation time, mean job arrival rate to the system, input/output buffer capacities at each processing machine, and the vehicle control strategies. Each of the design alternatives is simulated to collect the upper and lower bounds of the five performance indices. We develop a Data Envelopment Analysis (DEA) model to assess the 180 designs with imprecise data of the five indices. The three-ways factorial experiment analysis for the assessment results indicates the buffer capacity and the interaction of job arrival rate and buffer capacity affect the performance significantly.
Characterization of the interfacial heat transfer coefficient for hot stamping processes
NASA Astrophysics Data System (ADS)
Luan, Xi; Liu, Xiaochuan; Fang, Haomiao; Ji, Kang; El Fakir, Omer; Wang, LiLiang
2016-08-01
In hot stamping processes, the interfacial heat transfer coefficient (IHTC) between the forming tools and hot blank is an essential parameter which determines the quenching rate of the process and hence the resulting material microstructure. The present work focuses on the characterization of the IHTC between an aluminium alloy 7075-T6 blank and two different die materials, cast iron (G3500) and H13 die steel, at various contact pressures. It was found that the IHTC between AA7075 and cast iron had values 78.6% higher than that obtained between AA7075 and H13 die steel. Die materials and contact pressures had pronounced effects on the IHTC, suggesting that the IHTC can be used to guide the selection of stamping tool materials and the precise control of processing parameters.
Long-term pavement performance project laboratory materials testing and handling guide
DOT National Transportation Integrated Search
2007-09-01
The Long Term Pavement Performance (LTPP) Laboratory Material Testing Guide was originally prepared for laboratory material handling and testing of material specimens and samples of asphalt materials, portland cement concrete, aggregates, and soils u...
Water Worlds. 4-H Member's Guide M-5-18; 4-H Leaders Guide L-5-18.
ERIC Educational Resources Information Center
Hawkes, Janet E.; And Others
This pocket folder of materials is designed to provide children aged 9 to 12 with an opportunity to explore and observe aquatic environments. The package includes a 4-H Leader's guide, member's guide, and supplementary materials. The leader's guide contains safety considerations, tips and techniques, and additional activities for getting started…
Career Opportunities Instructional Guide. Spanish Student Materials.
ERIC Educational Resources Information Center
Hendrix, Mary W.; And Others
This document is the Spanish language version of the student materials component designed to accompany the Career Opportunities Instructional Guide. Page numbers are consistent with numbering in that guide. Seventeen units are provided. The materials in Unit 1 concern various aspects of locating information about occupations; Unit 2 provides an…
Career Opportunities Instructional Guide. Student Materials.
ERIC Educational Resources Information Center
Hendrix, Mary W.
These student materials are designed to accompany the Career Opportunities Instructional Guide. Page numbers are consistent with the numbering in that guide. Seventeen units are provided. The materials in Unit 1 concern aspects of locating information about occupations; Unit 2 provides an introduction to the 15 occupational clusters. Each of the…
In Focus: Alcohol and Alcoholism Audiovisual Guide.
ERIC Educational Resources Information Center
National Clearinghouse for Alcohol Information (DHHS), Rockville, MD.
This guide reviews audiovisual materials currently available on alcohol abuse and alcoholism. An alphabetical index of audiovisual materials is followed by synopses of the indexed materials. Information about the intended audience, price, rental fee, and distributor is included. This guide also provides a list of publications related to media…
NASA Astrophysics Data System (ADS)
Wu, W.; Zhou, D. J.; Adamski, D. J.; Young, D.; Wang, Y. W.
2017-09-01
A study of die wear was performed using an uncoated dual phase, 1,180 MPa ultimate tensile strength steel (DP1180) in a progressive die. The objectives of the current study are to evaluate the die durability of various tooling materials and coatings for forming operations on uncoated DP1180 steel and update OEM’s die standards based on the experimental results in the real production environment. In total, 100,800 hits were performed in manufacturing production conditions, where 33 die inserts with the combination of 10 die materials and 9 coatings were investigated. The die inserts were evaluated for surface wear using scanning electron microscopy and characterized in terms of die material and/or coating defects, failure mode, failure initiation and propagation. Surface roughness of the formed parts was characterized using a WYKO NT110 machine. The analytical analysis of the die inserts and formed parts, combined with the failure mode and service life, provide a basis for die material and coating selection for forming AHSS components. The conclusions of this study will guide the selection of die material and coatings for high-volume production of AHSS components.
[Study on sustained release preparations of Epimedium component].
Yan, Hong-mei; Ding, Dong-mei; Zhang, Zhen-hai; Sun, E; Song, Jie; Jia, Xiao-bin
2015-04-01
The formulation for sustained release tablet of Epinedium component was selected and the evaluation equation of in vitro release was established. The liquidity of component was improved with the help of colloidal silica aided by spray drying, which would be the main drug in the sustained release tablets. Dissolution was selected as an evaluation index to investigate skeletal material type, fillers, impact porogen, lubricants and other materials on the quality of sustained release tablet. The sustained release tablets were prepared by dry compression. Formulation of sustained release preparations was main drug 35%, HPMC K(4M) 20% and HPMC K(15M) 10% as skeleton material, MCC 31% as filler, PEG6000 2% as porogen and magnesium stearate 2% as lubricant. The sustained release tablets released up to 80% in 8 h. The zero order equation, primary equation and Higuchi equation could simulate the release characteristics of sustained release tablets in vitro, the correlation coefficients r were larger than 0.96. The primary equation was most similar in vitro release characteristics and its correlation coefficient r was 0.9950. The preparation method is simple and the results of formulation selection are reliable. It can be used to guide the production of Epimedium component sustained release preparations.
Missouri Introduction to Materials and Processing Technology. Instructor Guide.
ERIC Educational Resources Information Center
Missouri Univ., Columbia. Instructional Materials Lab.
This guide is intended to support a high school specialization course in materials and processing technology. The document contains three sections: (1) information on using the material; (2) a set of instructor guides for eight instructional units; (3) 15 technological activity modules and teacher and student instructions for their use; and (4)…
Economic and Societal Factors Instructional Guide. Spanish Student Materials.
ERIC Educational Resources Information Center
Hendrix, Mary W.; And Others
This document is the Spanish language version of the student materials component designed to accompany the Economic and Societal Factors Instructional Guide. Page numbers are consistent with the numbering in that guide. The guide's nine units deal with the following topics: (1) job acquisition (sources of employment, job application, completing…
Economic and Societal Factors Instructional Guide. Student Materials.
ERIC Educational Resources Information Center
Hendrix, Mary W.
These student materials are designed to accompany the Economic and Societal Factors Instructional Guide. Page numbers are consistent with the numbering in that guide. The guide's nine units deal with the following topics: (1) job acquisition (sources of employment, job application, completing the application form, resume, job interview, follow-up…
Diesel Equipment Department. Student Learning Guide.
ERIC Educational Resources Information Center
Palm Beach County Board of Public Instruction, West Palm Beach, FL.
Eleven student learning guides are provided for the duty entitled "completing core curriculum" of the diesel equipment program. Each learning guide concerns one of the tasks that comprise the duty. Introductory materials for each guide include the purpose and performance and enabling objectives. For each enabling objective, these materials are…
Cui, Z; Wang, Z; Ye, G; Zhang, C; Wu, G; Lv, J
2018-01-01
The aim was to test the feasibility of a novel three-dimensional (3D) printed guiding device for electrode implantation of sacral neuromodulation (SNM). A 3D printed guiding device for electrode implantation was customized to patients' anatomy of the sacral region. Liquid photopolymer was selected as the printing material. The details of the device designation and prototype building are described. The guiding device was used in two patients who underwent SNM for intractable constipation. Details of the procedure and the outcomes are given. With the help of the device, the test needle for stimulation was placed in the target sacral foramen successfully at the first attempt of puncture in both patients. The time to implant a tined SNM electrode was less than 20 min and no complications were observed. At the end of the screening phase, symptoms of constipation were relieved by more than 50% in both patients and permanent stimulation was established. The customized 3D printed guiding device for implantation of SNM is a promising instrument that facilitates a precise and quick implantation of the electrode into the target sacral foramen. Colorectal Disease © 2017 The Association of Coloproctology of Great Britain and Ireland.
Micromechanics Analysis Code (MAC) User Guide: Version 1.0
NASA Technical Reports Server (NTRS)
Wilt, T. E.; Arnold, S. M.
1994-01-01
The ability to accurately predict the thermomechanical deformation response of advanced composite materials continues to play an important role in the development of these strategic materials. Analytical models that predict the effective behavior of composites are used not only by engineers performing structural analysis of large-scale composite components but also by material scientists in developing new material systems. For an analytical model to fulfill these two distinct functions it must be based on a micromechanics approach which utilizes physically based deformation and life constitutive models and allows one to generate the average (macro) response of a composite material given the properties of the individual constituents and their geometric arrangement. Here the user guide for the recently developed, computationally efficient and comprehensive micromechanics analysis code, MAC, who's predictive capability rests entirely upon the fully analytical generalized method of cells, GMC, micromechanics model is described. MAC is a versatile form of research software that 'drives' the double or triple ply periodic micromechanics constitutive models based upon GMC. MAC enhances the basic capabilities of GMC by providing a modular framework wherein (1) various thermal, mechanical (stress or strain control), and thermomechanical load histories can be imposed; (2) different integration algorithms may be selected; (3) a variety of constituent constitutive models may be utilized and/or implemented; and (4) a variety of fiber architectures may be easily accessed through their corresponding representative volume elements.
Micromechanics Analysis Code (MAC). User Guide: Version 2.0
NASA Technical Reports Server (NTRS)
Wilt, T. E.; Arnold, S. M.
1996-01-01
The ability to accurately predict the thermomechanical deformation response of advanced composite materials continues to play an important role in the development of these strategic materials. Analytical models that predict the effective behavior of composites are used not only by engineers performing structural analysis of large-scale composite components but also by material scientists in developing new material systems. For an analytical model to fulfill these two distinct functions it must be based on a micromechanics approach which utilizes physically based deformation and life constitutive models and allows one to generate the average (macro) response of a composite material given the properties of the individual constituents and their geometric arrangement. Here the user guide for the recently developed, computationally efficient and comprehensive micromechanics analysis code's (MAC) who's predictive capability rests entirely upon the fully analytical generalized method of cells (GMC), micromechanics model is described. MAC is a versatile form of research software that 'drives' the double or triply periodic micromechanics constitutive models based upon GMC. MAC enhances the basic capabilities of GMC by providing a modular framework wherein (1) various thermal, mechanical (stress or strain control) and thermomechanical load histories can be imposed, (2) different integration algorithms may be selected, (3) a variety of constituent constitutive models may be utilized and/or implemented, and (4) a variety of fiber and laminate architectures may be easily accessed through their corresponding representative volume elements.
Novel methodology to obtain salient biomechanical characteristics of insole materials.
Lavery, L A; Vela, S A; Ashry, H R; Lanctot, D R; Athanasiou, K A
1997-06-01
Viscoelastic inserts are commonly used as artificial shock absorbers to prevent neuropathic foot ulcerations by decreasing pressure on the sole of the foot. Unfortunately, there is little scientific information available to guide physicians in the selection of appropriate insole materials. Therefore, a novel methodology was developed to form a rational platform for biomechanical characterizations of insole material durability, which consisted of in vivo gait analysis and in vitro bioengineering measurements. Results show significant differences in the compressive stiffness of the tested insoles and the rate of change over time in both compressive stiffness and peak pressures measured. Good correlations were found between pressure-time integral and Young's modulus (r2 = 0.93), and total energy applied and Young's modulus (r2 = 0.87).
Near-infrared image-guided laser ablation of artificial caries lesions.
Tao, You-Chen; Fan, Kenneth; Fried, Daniel
2007-01-01
Laser removal of dental hard tissue can be combined with optical, spectral or acoustic feedback systems to selectively ablate dental caries and restorative materials. Near-infrared (NIR) imaging has considerable potential for the optical discrimination of sound and demineralized tissue. The objective of this study was to test the hypothesis that two-dimensional NIR images of demineralized tooth surfaces can be used to guide CO(2) laser ablation for the selective removal of artificial caries lesions. Highly patterned artificial lesions were produced by submerging 5 × 5 mm(2) bovine enamel samples in demineralized solution for a 9-day period while sound areas were protected with acid resistant varnish. NIR imaging and polarization sensitive optical coherence tomography (PS-OCT) were used to acquire depth-resolved images at a wavelength of 1310-nm. An imaging processing module was developed to analyze the NIR images and to generate optical maps. The optical maps were used to control a CO(2) laser for the selective removal of the lesions at a uniform depth. This experiment showed that the patterned artificial lesions were removed selectively using the optical maps with minimal damage to sound enamel areas. Post-ablation NIR and PS-OCT imaging confirmed that demineralized areas were removed while sound enamel was conserved. This study successfully demonstrated that near-IR imaging can be integrated with a CO(2) laser ablation system for the selective removal of dental caries.
Near-infrared image-guided laser ablation of artificial caries lesions
Tao, You-Chen; Fan, Kenneth; Fried, Daniel
2012-01-01
Laser removal of dental hard tissue can be combined with optical, spectral or acoustic feedback systems to selectively ablate dental caries and restorative materials. Near-infrared (NIR) imaging has considerable potential for the optical discrimination of sound and demineralized tissue. The objective of this study was to test the hypothesis that two–dimensional NIR images of demineralized tooth surfaces can be used to guide CO2 laser ablation for the selective removal of artificial caries lesions. Highly patterned artificial lesions were produced by submerging 5 × 5 mm2 bovine enamel samples in demineralized solution for a 9-day period while sound areas were protected with acid resistant varnish. NIR imaging and polarization sensitive optical coherence tomography (PS-OCT) were used to acquire depth-resolved images at a wavelength of 1310-nm. An imaging processing module was developed to analyze the NIR images and to generate optical maps. The optical maps were used to control a CO2 laser for the selective removal of the lesions at a uniform depth. This experiment showed that the patterned artificial lesions were removed selectively using the optical maps with minimal damage to sound enamel areas. Post-ablation NIR and PS-OCT imaging confirmed that demineralized areas were removed while sound enamel was conserved. This study successfully demonstrated that near-IR imaging can be integrated with a CO2 laser ablation system for the selective removal of dental caries. PMID:22866210
Near-infrared image-guided laser ablation of artificial caries lesions
NASA Astrophysics Data System (ADS)
Tao, You-Chen; Fan, Kenneth; Fried, Daniel
2007-02-01
Laser removal of dental hard tissue can be combined with optical, spectral or acoustic feedback systems to selectively ablate dental caries and restorative materials. Near-infrared (NIR) imaging has considerable potential for the optical discrimination of sound and demineralized tissue. The objective of this study was to test the hypothesis that two-dimensional NIR images of demineralized tooth surfaces can be used to guide CO II laser ablation for the selective removal of artificial caries lesions. Highly patterned artificial lesions were produced by submerging 5 x 5 mm2 bovine enamel samples in demineralized solution for a 9-day period while sound areas were protected with acid resistant varnish. NIR imaging and polarization sensitive optical coherence tomography (PS-OCT) were used to acquire depth-resolved images at a wavelength of 1310-nm. An imaging processing module was developed to analyze the NIR images and to generate optical maps. The optical maps were used to control a CO II laser for the selective removal of the lesions at a uniform depth. This experiment showed that the patterned artificial lesions were removed selectively using the optical maps with minimal damage to sound enamel areas. Post-ablation NIR and PS-OCT imaging confirmed that demineralized areas were removed while sound enamel was conserved. This study successfully demonstrated that near-IR imaging can be integrated with a CO II laser ablation system for the selective removal of dental caries.
High Temperature Shear Horizontal Electromagnetic Acoustic Transducer for Guided Wave Inspection
Kogia, Maria; Gan, Tat-Hean; Balachandran, Wamadeva; Livadas, Makis; Kappatos, Vassilios; Szabo, Istvan; Mohimi, Abbas; Round, Andrew
2016-01-01
Guided Wave Testing (GWT) using novel Electromagnetic Acoustic Transducers (EMATs) is proposed for the inspection of large structures operating at high temperatures. To date, high temperature EMATs have been developed only for thickness measurements and they are not suitable for GWT. A pair of water-cooled EMATs capable of exciting and receiving Shear Horizontal (SH0) waves for GWT with optimal high temperature properties (up to 500 °C) has been developed. Thermal and Computational Fluid Dynamic (CFD) simulations of the EMAT design have been performed and experimentally validated. The optimal thermal EMAT design, material selection and operating conditions were calculated. The EMAT was successfully tested regarding its thermal and GWT performance from ambient temperature to 500 °C. PMID:27110792
Materials and Nondestructive Evaluation Laboratoriers: User Test Planning Guide
NASA Technical Reports Server (NTRS)
Schaschl, Leslie
2011-01-01
The Materials and Nondestructive Evaluation Laboratory process, milestones and inputs are unknowns to first-time users. The Materials and Nondestructive Evaluation Laboratory Planning Guide aids in establishing expectations for both NASA and non- NASA facility customers. The potential audience for this guide includes both internal and commercial spaceflight hardware developers. It is intended to assist their project engineering personnel in materials analysis planning and execution. Material covered includes a roadmap of the analysis process, roles and responsibilities of facility and user, major milestones, facility capabilities, and inputs required by the facility. Samples of deliverables, products, and inputs necessary to define scope of analysis, cost, and schedule are included as an appendix to the guide.
A Teacher's Guide to Selective Service Registration.
ERIC Educational Resources Information Center
Selective Service System, Washington, DC.
This guide is designed to assist high school teachers in their preparation of lessons covering the Selective Service System. The guide is organized into seven chapters. Chapter 1 describes Selective Service as it exists today, explains the registration process and its role in the national defense system, details who must register, and emphasizes…
Kim, Junkyeong; Lee, Chaggil; Park, Seunghee
2017-06-07
Concrete is one of the most common materials used to construct a variety of civil infrastructures. However, since concrete might be susceptible to brittle fracture, it is essential to confirm the strength of concrete at the early-age stage of the curing process to prevent unexpected collapse. To address this issue, this study proposes a novel method to estimate the early-age strength of concrete, by integrating an artificial neural network algorithm with a dynamic response measurement of the concrete material. The dynamic response signals of the concrete, including both electromechanical impedances and guided ultrasonic waves, are obtained from an embedded piezoelectric sensor module. The cross-correlation coefficient of the electromechanical impedance signals and the amplitude of the guided ultrasonic wave signals are selected to quantify the variation in dynamic responses according to the strength of the concrete. Furthermore, an artificial neural network algorithm is used to verify a relationship between the variation in dynamic response signals and concrete strength. The results of an experimental study confirm that the proposed approach can be effectively applied to estimate the strength of concrete material from the early-age stage of the curing process.
Kim, Junkyeong; Lee, Chaggil; Park, Seunghee
2017-01-01
Concrete is one of the most common materials used to construct a variety of civil infrastructures. However, since concrete might be susceptible to brittle fracture, it is essential to confirm the strength of concrete at the early-age stage of the curing process to prevent unexpected collapse. To address this issue, this study proposes a novel method to estimate the early-age strength of concrete, by integrating an artificial neural network algorithm with a dynamic response measurement of the concrete material. The dynamic response signals of the concrete, including both electromechanical impedances and guided ultrasonic waves, are obtained from an embedded piezoelectric sensor module. The cross-correlation coefficient of the electromechanical impedance signals and the amplitude of the guided ultrasonic wave signals are selected to quantify the variation in dynamic responses according to the strength of the concrete. Furthermore, an artificial neural network algorithm is used to verify a relationship between the variation in dynamic response signals and concrete strength. The results of an experimental study confirm that the proposed approach can be effectively applied to estimate the strength of concrete material from the early-age stage of the curing process. PMID:28590456
[Guided bone regeneration: general survey].
Cosyn, Jan; De Bruyn, Hugo
2009-01-01
The principle of 'guided bone regeneration' was first described in 1988 on the basis of animal-experimental data. Six weeks after transmandibular defects had been created and protected by non-resorbable teflonmembranes, complete bone regeneration was found. The technique was based on the selective repopulation of the wound: every infiltration of cells outside the neighbouring bone tissue was prevented by the application of the membrane. Additional animal experiments showed that guided bone regeneration was a viable treatment option for local bone defects surrounding dental implants. Clinical practice, however, showed that premature membrane exposure was a common complication, which was responsible for a tremendous reduction in regenerated bone volume. In addition, a second surgical intervention was always necessary to remove the membrane. As a result, resorbable alternatives were developed. Since these are less rigid, bone fillers are usually used simultaneously. These comprise autogenous bone chips and bone substitutes from allogenic or xenogenic origine. Also alloplastic materials could be used for this purpose. Based on their characteristics this article provides an overview of the biomaterials that could be considered for guided bone regeneration. Specific attention goes to their application in clinical practice.
ERIC Educational Resources Information Center
Department of Agriculture, Washington, DC. Office of the Secretary.
This resource guide provides a list of materials available from public and private sources on agriculture and related issues. More than 300 organizations and publishers were asked what materials they were producing that could help regular K-12 classroom teachers incorporate more information about agriculture into their instruction. This guide is…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Beardsley, M B
2008-03-26
The feasibility to coat large SNF/HLW containers with a structurally amorphous material (SAM) was demonstrated on sub-scale models fabricated from Type 316L stainless steel. The sub-scale model were coated with SAM 1651 material using kerosene high velocity oxygen fuel (HVOF) torch to thicknesses ranging from 1 mm to 2 mm. The process parameters such as standoff distance, oxygen flow, and kerosene flow, were optimized in order to improve the corrosion properties of the coatings. Testing in an electrochemical cell and long-term exposure to a salt spray environment were used to guide the selection of process parameters.
Cost-driven materials selection criteria for redox flow battery electrolytes
NASA Astrophysics Data System (ADS)
Dmello, Rylan; Milshtein, Jarrod D.; Brushett, Fikile R.; Smith, Kyle C.
2016-10-01
Redox flow batteries show promise for grid-scale energy storage applications but are presently too expensive for widespread adoption. Electrolyte material costs constitute a sizeable fraction of the redox flow battery price. As such, this work develops a techno-economic model for redox flow batteries that accounts for redox-active material, salt, and solvent contributions to the electrolyte cost. Benchmark values for electrolyte constituent costs guide identification of design constraints. Nonaqueous battery design is sensitive to all electrolyte component costs, cell voltage, and area-specific resistance. Design challenges for nonaqueous batteries include minimizing salt content and dropping redox-active species concentration requirements. Aqueous battery design is sensitive to only redox-active material cost and cell voltage, due to low area-specific resistance and supporting electrolyte costs. Increasing cell voltage and decreasing redox-active material cost present major materials selection challenges for aqueous batteries. This work minimizes cost-constraining variables by mapping the battery design space with the techno-economic model, through which we highlight pathways towards low price and moderate concentration. Furthermore, the techno-economic model calculates quantitative iterations of battery designs to achieve the Department of Energy battery price target of 100 per kWh and highlights cost cutting strategies to drive battery prices down further.
Dornish, M; Kaplan, D; Skaugrud, O
2001-11-01
The American Society for Testing and Materials (ASTM) is making a concerted effort to establish standards and guidelines for the entire field of tissue-engineered medical products (TEMPS). Safety, consistency, and functionality of biomaterials used as matrices, scaffolds, and immobilizing agents in TEMPS are a concern. Therefore, the ASTM has established a number of task groups to produce standards and guidelines for such biomaterials. Alginate is a naturally occurring biomaterial used for immobilizing living cells to form an artificial organ, such as encapsulated pancreatic islets. In order to aid in successful clinical applications and to help expedite regulatory approval, the alginate used must be fully documented. The ASTM alginate guide gives information on selection of testing methodologies and safety criteria. Critical parameters such as monomer content, molecular weight, and viscosity, in addition to more general parameters, such as dry matter content, heavy metal content, bioburden, and endotoxin content are described in the ASTM document. In a like manner, the characterization parameters for chitosan, a bioadhesive polycationic polysaccharide, are described in a separate guide. For chitosan, the degree of deacetylation is of critical importance. Control of protein content and, hence, potential for hypersensitivity, endotoxin content, and total bioburden are important in chitosan preparations for TEMPS. Together these two guides represent part of the effort on behalf of the ASTM and other interested parties to ensure quality and standardization in TEMPS.
Color related to ceramic and zirconia restorations: a review.
Vichi, Alessandro; Louca, Chris; Corciolani, Gabriele; Ferrari, Marco
2011-01-01
The requirement to achieve natural looking restorations is one of the most challenging aspects of dentistry, and the shade matching of dental restorations with the natural dentition is a difficult task due to the complex optical characteristics of natural teeth. Dental porcelain is considered the reference material for prosthetic rehabilitation, but it is not easy to handle and aesthetic excellence is quite difficult to obtain. For these reasons, shade matching with dental porcelain is often considered to be more artistic than scientific. Shade matching is considered unpredictable due to several variables that may influence the final appearance of a restoration. In order to improve this situation, over the last decade new shade guides and instruments have been developed and the aesthetic aspects of dental porcelain have been further investigated. In this review some aspects of color selection and color reproduction have been examined. Color selection has advanced through the development of new shade guides and electronic shade taking devices, although visual assessment has still not been entirely replaced by electronic instruments. Color reproduction with dental porcelain has improved thanks to advances in the performance and knowledge of dental porcelain, but is still not easy to achieve. The difficulties of achieving good aesthetics with PFM restorations and the desire for metal free solutions have resulted in the increased use of zirconia. The unique optical properties of zirconia have introduced new opportunities for achieving superior aesthetics, however further research is required with this material. Copyright © 2010 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
Kinder Lernen Deutsch. Materials Project Part I. Revised.
ERIC Educational Resources Information Center
American Association of Teachers of German.
The Kinder Lernen Deutsch (LKD) materials evaluation project identifies materials appropriate for the elementary school German classrooms in grades K-8. This guide consists of an annotated bibliography, with ratings, of these materials. The guiding principles by which the materials were assessed were: use of the communicative approach; integration…
Ecological Modeling Guide for Ecosystem Restoration and Management
2012-08-01
may result from proposed restoration and management actions. This report provides information to guide environmental planers in selection, development...actions. This report provides information to guide environmental planers in selection, development, evaluation and documentation of ecological models. A
Intrarater repeatability of shade selections with two shade guides.
Hammad, Ihab A
2003-01-01
Color research has shown that shade guides do not always represent the color of natural teeth. Moreover, visual evaluation has been found to be unreliable and inconsistent. This investigation evaluated the effects of 2 shade guides on the intrarater repeatability (reliability) of prosthodontists and general practitioners with regard to shade selection. Ten prosthodontists and ten general practitioners (all men, 35-45 years old) with an average practice experience of 14 years participated in this study. Examiners were tested to eliminate color blindness. Each clinician used Vita Lumin Vacuum and Vitapan 3D-Master shade guides to determine the shades of the maxillary right canines of 20 patients following a standard protocol. The identification codes of the shade tabs were masked to prevent shade memory. All teeth were polished before each shade selection, and the selection process was standardized for controlled lighting and procedures. Shade selections were randomly repeated 1 month later by the same practitioners on the same group of patients in accordance with the same shade-selection protocol. Analysis of variance and t tests for individual comparisons among means were performed (P<.05). Significant interactions were found between the effects of shade guide system and specialty training on intrarater repeatability (P<.0001, analysis of variance). The intrarater repeatability of prosthodontists was significantly higher than that of general practitioners when the Vita Lumin Vacuum shade guide was used (P<.0001, t test). Use of the Vitapan 3D-Master shade guide significantly improved the intrarater repeatability of general practitioners compared with the Vita Lumin Vacuum shade guide (P<.0005). This improvement was not significant, however, among prosthodontists (P=.2861). Within the limitations of this study, the prosthodontists demonstrated superior intrarater repeatability in shade selection, especially when the Vita Lumin Vacuum shade guide was used. Use of the Vitapan 3D-Master shade guide notably improved intrarater repeatability among the general practitioners.
ERIC Educational Resources Information Center
Fee, Margery, Ed.
Forty-four English language anthologies are included in this index and guide to Canadian poetry. The introduction discusses the selection of the anthologies and the function of the index. The book contains (1) a guide to Canadian poetry anthologies that includes biographical sources, history, and criticism; (2) a selective list of Canadian poetry…
Fabrication and comparison of selective, transparent optics for concentrating solar systems
NASA Astrophysics Data System (ADS)
Taylor, Robert A.; Hewakuruppu, Yasitha; DeJarnette, Drew; Otanicar, Todd P.
2015-09-01
Concentrating optics enable solar thermal energy to be harvested at high temperature (<100oC). As the temperature of the receiver increases, radiative losses can become dominant. In many concentrating systems, the receiver is coated with a selectively absorbing surface (TiNOx, Black Chrome, etc.) to obtain higher efficiency. Commercial absorber coatings are well-developed to be highly absorbing for short (solar) wavelengths, but highly reflective at long (thermal emission) wavelengths. If a solar system requires an analogous transparent, non-absorbing optic - i.e. a cover material which is highly transparent at short wavelengths, but highly reflective at long wavelengths - the technology is simply not available. Low-e glass technology represents a commercially viable option for this sector, but it has only been optimized for visible light transmission. Optically thin metal hole-arrays are another feasible solution, but are often difficult to fabricate. This study investigates combinations of thin film coatings of transparent conductive oxides and nanoparticles as a potential low cost solution for selective solar covers. This paper experimentally compares readily available materials deposited on various substrates and ranks them via an `efficiency factor for selectivity', which represents the efficiency of radiative exchange in a solar collector. Out of the materials studied, indium tin oxide and thin films of ZnS-Ag-ZnS represent the most feasible solutions for concentrated solar systems. Overall, this study provides an engineering design approach and guide for creating scalable, selective, transparent optics which could potentially be imbedded within conventional low-e glass production techniques.
ERIC Educational Resources Information Center
Beyer, Barry K.
This guide cites instructional materials on Africa south of the Sahara which have become available since February 1969. Acknowledging the probability of inaccuracies in the majority of the materials cited, the guide neither evaluates nor promotes items, but simply presents annotations of readings, textbooks, fact sheets, atlases, African…
Marketing Education Curriculum Guide.
ERIC Educational Resources Information Center
Michigan State Univ., East Lansing. Coll. of Agriculture and Natural Resources Education Inst.
This curriculum guide is intended to provide a common core of competencies from which to design an effective secondary marketing education program. Introductory materials include a definition of marketing education, objectives, outline of instructional content, and questions and answers regarding the curriculum guide. These practical materials are…
Guide to Packaging Your Educational Programs.
ERIC Educational Resources Information Center
Hunt, Janice M.; And Others
This guide to planning, producing, and disseminating instructional materials includes topics on (1) planning content and form; (2) planning personnel requirements, budget, and scheduling needs; (3) producing printed materials; (4) producing audiovisual materials; and (5) distribution. The main emphasis is on developing printed materials and on the…
ERIC Educational Resources Information Center
Utah State Univ., Logan. Utah Protocol Materials Project.
This student guide is part of a protocol learning module designed to teach the prospective teacher to make smooth transitions from one activity to another, in order to deter disruptive behavior in the course of the transition. The entire module consists of this guide, a protocol film, and testing materials. The student guide contains: (a)…
Selective Guide to Literature on Software Review Sources. Engineering Literature Guides, Number 8.
ERIC Educational Resources Information Center
Bean, Margaret H., Ed.
This selective literature guide serves as a directory to software evaluation sources for all sizes of microcomputers. Information is provided on review sources and guides which deal with a variety of applications such as library, engineering, school, and business as well as a variety of systems, including DOS and CP/M. This document is intended to…
Projects procedure guide : sampling frequencies for materials testing and inspection
DOT National Transportation Integrated Search
2002-02-01
The Bureau of Materials and Physical Research's Project Procedures Guide (PPG) is used as a resource for determining reasonable inspection procedures and sampling frequencies for materials used in highway construction. This Manual seeks to establish ...
NASA Astrophysics Data System (ADS)
Kirkby, K. C.; Phipps, M.
2011-12-01
While it may seem counterintuitive, sometimes stepping back is one of the more effective pedagogical approaches instructors can make. On museum visits, an instructor's presence fundamentally alters students' experiences and can curtail student learning by limiting questions or discouraging students from exploring their own interests. Students often rely on the instructor and become passive observers, rather than engaged learners. As an alternative to instructor-led visits, self-guided student explorations of museum exhibits proved to be both popular and pedagogically effective. On pre-instruction and post-instruction surveys, these ungraded, self-guided explorations match or exceed the efficacy of traditional graded lab instruction and completely eclipse gains normally achieved by traditional lecture instruction. In addition, these explorations achieve the remarkable goal of integrating undergraduate earth science instruction into students' social lives. Based on the success of the self-guided museum explorations, this fall saw the debut of an attempt to expand this concept to field experiences. A self-guided student field exploration of Saint Anthony Falls focuses on the intersections of geological processes with human history. Students explore the waterfalls' evolution, its early interpretation by 18th and 19th century Dakota and Euro-America societies, and its subsequent social and economic impacts on Upper Midwest societies. Self-guided explorations allow students to explore field settings on their own or with friends and family in a more relaxed manner. At the same time, these explorations give students control over, and responsibility for, their own learning - a powerful pedagogical approach. Student control over their learning is also the goal of an initiative to use scanning technologies, such as linear bar codes, 2D barcodes and radio-frequency identification (RFID), to revolutionize sample identification and study. Scanning technology allows students to practice pattern recognition of earth materials even before they begin to check their properties. As importantly, scanning systems allow students to select a physical earth material sample and link that sample with web page content about its origin, geologic setting, economic uses, or its social and historical relevance. With scanning systems, students are not dependent on instructors for clarification or confirmation, so they can explore earth materials at their own pace and in ways that fit their individual learning style. Despite a greatly reduced emphasis on sample identification in laboratory activities, students who integrated scanning technology and web content with earth material samples did better on unannounced end-of-term identification quizzes than students taught traditional identification methods. Integrating scanning technologies into earth material study represents the first transformative change in how geoscientists have taught introductory sample identification since the 1800's.
A Study on Developing a Guide Material for Science Classes Supported by Out-of-School Learningi
ERIC Educational Resources Information Center
Bakioglu, Büsra; Karamustafaoglu, Orhan
2017-01-01
The main purpose of this research was to develop a guide material in line with learning outcomes of the unit for the 5th Graders titled Solving the Puzzle: Our Body in order to be utilized during out-of-school learning activities by science teachers. There is no guide material developed in our country for science teachers to be used in out-of…
Image-guided fine-needle aspiration of retroperitoneal masses: The role of the cytopathologist.
Mehdi, Ghazala; Maheshwari, Veena; Afzal, Sheerin; Ansari, Hena A; Ahmad, Ibne
2013-01-01
Retroperitoneal tumors constitute a difficult diagnostic category as they are not easily accessible. The advent of image-guided fine-needle aspiration (FNA) has resolved this problem significantly. We present a short study based on guided aspiration of retroperitoneal tumors, in which we have tried to assess the role of image-guided fine-needle aspiration cytology as a tool for pre-operative diagnosis. The study was conducted on patients diagnosed with retroperitoneal masses. FNA was performed under image guidance with the help of ultrasonography and/or computed tomography; smears were prepared and meticulously screened according to a fixed protocol. The results were analyzed to determine sensitivity, specificity, and diagnostic efficacy of cytopathological diagnosis using image-guided FNA techniques. We assessed 38 patients with retroperitoneal masses. In all cases, adequate cellular material was obtained. No major complications were encountered. Statistical analysis was carried out in 35 cases; sensitivity, specificity, and diagnostic accuracy were 100% in these cases. FNA under image guidance should be considered a first-line diagnostic approach for retroperitoneal and other abdominal tumors, although caution should be exercised in case selection. In areas where advanced tests are not available, the cytotechnologist and cytopathologist have a very important role to play in ensuring accurate diagnoses.
Puthillath, Padmakumar; Galan, Jose M; Ren, Baiyang; Lissenden, Cliff J; Rose, Joseph L
2013-05-01
Ultrasonic guided wave inspection of structures containing adhesively bonded joints requires an understanding of the interaction of guided waves with geometric and material discontinuities or transitions in the waveguide. Such interactions result in mode conversion with energy being partitioned among the reflected and transmitted modes. The step transition between an aluminum layer and an aluminum-adhesive-aluminum multi-layer waveguide is analyzed as a model structure. Dispersion analysis enables assessment of (i) synchronism through dispersion curve overlap and (ii) wavestructure correlation. Mode-pairs in the multi-layer waveguide are defined relative to a prescribed mode in a single layer as being synchronized and having nearly perfect wavestructure matching. Only a limited number of mode-pairs exist, and each has a unique frequency range. A hybrid model based on semi-analytical finite elements and the normal mode expansion is implemented to assess mode conversion at a step transition in a waveguide. The model results indicate that synchronism and wavestructure matching is associated with energy transfer through the step transition, and that the energy of an incident wave mode in a single layer is transmitted almost entirely to the associated mode-pair, where one exists. This analysis guides the selection of incident modes that convert into transmitted modes and improve adhesive joint inspection with ultrasonic guided waves.
Foods from an Iowa Farm. A Resource Guide.
ERIC Educational Resources Information Center
Iowa State Dept. of Agriculture and Land Stewardship, Des Moines.
Prepared for elementary and secondary teachers, this guide provides an annotated list of 72 instructional materials for teaching about farming and the products of Iowa farms. Entries, listed under the organization that provides the materials, state type of instructional material, major topics addressed, grades for which materials are appropriate,…
78 FR 38739 - Special Nuclear Material Control and Accounting Systems for Nuclear Power Plants
Federal Register 2010, 2011, 2012, 2013, 2014
2013-06-27
... NUCLEAR REGULATORY COMMISSION [NRC-2012-0109] Special Nuclear Material Control and Accounting... Guide (RG) 5.29, ``Special Nuclear Material Control and Accounting Systems for Nuclear Power Plants... material control and accounting. This guide applies to all nuclear power plants. ADDRESSES: Please refer to...
Mechnical Drawing/Drafting Curriculum Guide.
ERIC Educational Resources Information Center
Gregory, Margaret R.; Benson, Robert T.
This curriculum guide consists of materials for teaching a course in mechanical drawing and drafting. Addressed in the individual units of the guide are the following topics: the nature and scope of drawing and drafting, visualization and spatial relationships, drafting tools and materials, linework, freehand lettering, geometric construction,…
Energy Education Materials Inventory (e.e.m.i.). Part One: Print Materials.
ERIC Educational Resources Information Center
Energy and Man's Environment, Inc., Portland, OR.
This publication is one of a six-part inventory of energy education materials. Included in this part is a listing of print materials, including the following: teacher's guides, curriculum guides, ditto masters, textbooks, pamphlets, and posters. For each of the materials listed, the following information is included when available: (1) Title; (2)…
Oosterhout, S. D.; Kopidakis, N.; Owczarczyk, Z. R.; ...
2015-04-07
There have been remarkable improvements in the power conversion efficiency of solution-processable Organic Photovoltaics (OPV) have largely been driven by the development of novel narrow bandgap copolymer donors comprising an electron-donating (D) and an electron-withdrawing (A) group within the repeat unit. The large pool of potential D and A units and the laborious processes of chemical synthesis and device optimization, has made progress on new high efficiency materials slow with a few new efficient copolymers reported every year despite the large number of groups pursuing these materials. In our paper we present an integrated approach toward new narrow bandgap copolymersmore » that uses theory to guide the selection of materials to be synthesized based on their predicted energy levels, and time-resolved microwave conductivity (TRMC) to select the best-performing copolymer–fullerene bulk heterojunction to be incorporated into complete OPV devices. We validate our methodology by using a diverse group of 12 copolymers, including new and literature materials, to demonstrate good correlation between (a) theoretically determined energy levels of polymers and experimentally determined ionization energies and electron affinities and (b) photoconductance, measured by TRMC, and OPV device performance. The materials used here also allow us to explore whether further copolymer design rules need to be incorporated into our methodology for materials selection. For example, we explore the effect of the enthalpy change (ΔH) during exciton dissociation on the efficiency of free charge carrier generation and device efficiency and find that ΔH of -0.4 eV is sufficient for efficient charge generation.« less
A Selective United Nations Guide.
ERIC Educational Resources Information Center
Petty, Johnese G.
This annotated, selective bibliography is a guide to the history of the United Nations, its publications, and four of the 14 specialized agencies and their publications. It is organized under the following headings: biographies, guides, official records, indexes and abstracts, laws, yearbooks, bibliographies, directories, statistics, periodicals,…
3'-End labeling of nucleic acids by a polymerase ribozyme.
Samanta, Biswajit; Horning, David P; Joyce, Gerald F
2018-06-13
A polymerase ribozyme can be used to label the 3' end of RNA or DNA molecules by incorporating a variety of functionalized nucleotide analogs. Guided by a complementary template, the ribozyme adds a single nucleotide that may contain a fluorophore, biotin, azide or alkyne moiety, thus enabling the detection and/or capture of selectively labeled materials. Employing a variety of commercially available nucleotide analogs, efficient labeling was demonstrated for model RNAs and DNAs, human microRNAs and natural tRNA.
Code of Federal Regulations, 2010 CFR
2010-01-01
..., magnetic, graphic matter, or other documentary material, regardless of form or characteristic. Documentary... documentary material shall be guided by the topical guidelines in the applicable NRC Regulatory Guide. DOE... Network means the combined system that makes documentary material available electronically to parties...
Theory-Guided Synthesis of a Metastable Lead-Free Piezoelectric Polymorph
DOE Office of Scientific and Technical Information (OSTI.GOV)
Garten, Lauren M; Ndione, Paul F; Beaton, Daniel A
Many technologically critical materials are metastable under ambient conditions, yet the understanding of how to rationally design and guide the synthesis of these materials is limited. This work presents an integrated approach that targets a metastable lead-free piezoelectric polymorph of SrHfO3. First-principles calculations predict that the previous experimentally unrealized, metastable P4mm phase of SrHfO3 should exhibit a direct piezoelectric response (d33) of 36.9 pC N-1 (compared to d33 = 0 for the ground state). Combining computationally optimized substrate selection and synthesis conditions lead to the epitaxial stabilization of the polar P4mm phase of SrHfO3 on SrTiO3. The films are structurallymore » consistent with the theory predictions. A ferroelectric-induced large signal effective converse piezoelectric response of 5.2 pm V-1 for a 35 nm film is observed, indicating the ability to predict and target multifunctionality. This illustrates a coupled theory-experimental approach to the discovery and realization of new multifunctional polymorphs.« less
Theory-Guided Synthesis of a Metastable Lead-Free Piezoelectric Polymorph.
Garten, Lauren M; Dwaraknath, Shyam; Walker, Julian; Mangum, John S; Ndione, Paul F; Park, Yoonsang; Beaton, Daniel A; Gopalan, Venkatraman; Gorman, Brian P; Schelhas, Laura T; Toney, Michael F; Trolier-McKinstry, Susan; Persson, Kristin A; Ginley, David S
2018-05-10
Many technologically critical materials are metastable under ambient conditions, yet the understanding of how to rationally design and guide the synthesis of these materials is limited. This work presents an integrated approach that targets a metastable lead-free piezoelectric polymorph of SrHfO 3 . First-principles calculations predict that the previous experimentally unrealized, metastable P4mm phase of SrHfO 3 should exhibit a direct piezoelectric response (d 33 ) of 36.9 pC N -1 (compared to d 33 = 0 for the ground state). Combining computationally optimized substrate selection and synthesis conditions lead to the epitaxial stabilization of the polar P4mm phase of SrHfO 3 on SrTiO 3 . The films are structurally consistent with the theory predictions. A ferroelectric-induced large signal effective converse piezoelectric response of 5.2 pm V -1 for a 35 nm film is observed, indicating the ability to predict and target multifunctionality. This illustrates a coupled theory-experimental approach to the discovery and realization of new multifunctional polymorphs. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Testing atomic mass models with radioactive beams
DOE Office of Scientific and Technical Information (OSTI.GOV)
Haustein, P.E.
1989-01-01
Significantly increased yields of new or poorly characterized exotic isotopes that lie far from beta-decay stability can be expected when radioactive beams are used to produce these nuclides. Measurements of the masses of these new species are very important. Such measurements are motivated by the general tendency of mass models to diverge from one another upon excursions from the line of beta-stability. Therefore in these regions (where atomic mass data are presently nonexistent or sparse) the models can be tested rigorously to highlight the features that affect the quality of their short-range and long-range extrapolation properties. Selection of systems tomore » study can be guided, in part, by a desire to probe those mass regions where distinctions among mass models are most apparent and where yields of exotic isotopes, produced via radioactive beams, can be optimized. Identification of models in such regions that have good predictive properties will aid materially in guiding the selection of additional experiments which ultimately will provide expansion of the atomic mass database for further refinement of the mass models. 6 refs., 5 figs.« less
Adopt-A-Stream Teacher's Guide for Grades K-12.
ERIC Educational Resources Information Center
Georgia State Dept. of Natural Resources, Atlanta.
This guide comprises materials largely drawn from existing environmental education materials. The four major subject areas discussed mirror the Adopt-A Stream activities and include watersheds, nonpoint source pollution, and biological and chemical monitoring of stream conditions. The activities in this guide are grouped according to grade levels.…
Biotechnology: Applications in Agriculture. Instructor Guide [and] Student Reference.
ERIC Educational Resources Information Center
Nevils, Aaron
This curriculum guide incorporates the needed components to aid agriculture teachers in the implementation of the Vocational Instructional Management System in biotechnology: applications in agriculture. The guide begins with a list of the competencies/objectives found in the six units; list of references and materials; list of materials and…
Teacher Resource Guide, 2002: A Guide to Educational Materials about Agriculture.
ERIC Educational Resources Information Center
Emery, Pamela, Ed.
This teacher guide provides resources for teaching about agriculture. The content of the book is divided into three sections. Section 1, "California Foundation for Agriculture in the Classroom Programs, Services, and Instructional Materials," provides information on the conferences, workshops, lesson plans, summer programs, and newsletters offered…
ERIC Educational Resources Information Center
Livonia Public Schools, MI.
This working guide for Livonia's Public Schools provides detailed instructions in preparing and handling catalog cards, a supplemental cataloging and classification guide, and typing rules for technical processing. Standard abbreviations are given for making classification entries, and separate cataloging instructions are given for charts,…
NASA Technical Reports Server (NTRS)
Pepper, Stephen V.; Jones, William R., Jr.; Kingsbury, Edward; Jansen, Mark J.
2007-01-01
The spiral orbit tribometer (SOT) bridges the gap between full-scale life testing and typically unrealistic accelerated life testing of ball-bearing lubricants in conjunction with bearing ball and race materials. The SOT operates under realistic conditions and quickly produces results, thereby providing information that can guide the selection of lubricant, ball, and race materials early in a design process. The SOT is based upon a simplified, retainerless thrust bearing comprising one ball between flat races (see figure). The SOT measures lubricant consumption and degradation rates and friction coefficients in boundary lubricated rolling and pivoting contacts. The ball is pressed between the lower and upper races with a controlled force and the lower plate is rotated. The combination of load and rotation causes the ball to move in a nearly circular orbit that is, more precisely, an opening spiral. The spiral s pitch is directly related to the friction coefficient. At the end of the orbit, the ball contacts the guide plate, restoring the orbit to its original radius. The orbit is repeatable throughout the entire test. A force transducer, mounted in-line with the guide plate, measures the force between the ball and the guide plate, which directly relates to the friction coefficient. The SOT, shown in the figure, can operate in under ultra-high vacuum (10(exp -9) Torr) or in a variety of gases at atmospheric pressure. The load force can be adjusted between 45 and 450 N. By varying the load force and ball diameter, mean Hertzian stresses between 0.5 and 5.0 GPa can be obtained. The ball s orbital speed range is between 1 and 100 rpm.
Globes: A Librarian's Guide to Selection and Purchase.
ERIC Educational Resources Information Center
Coombs, James
1981-01-01
Provides a guide for librarians to use in selecting globes by discussing how globes are made, types of globes, special and extraterrestrial globes, selecting criteria, and comparing such features as aesthetic appeal, readability, and currency of political information. A list of globe manufacturers and a selected bibliography are provided. (CHC)
Spontaneously amplified homochiral organic-inorganic nano-helix complexes via self-proliferation.
Zhai, Halei; Quan, Yan; Li, Li; Liu, Xiang-Yang; Xu, Xurong; Tang, Ruikang
2013-04-07
Most spiral coiled biomaterials in nature, such as gastropod shells, are homochiral, and the favoured chiral feature can be precisely inherited. This inspired us that selected material structures, including chirality, could be specifically replicated into the self-similar populations; however, a physicochemical understanding of the material-based heritage is unknown. We study the homochirality by using calcium phosphate mineralization in the presence of racemic amphiphilic molecules and biological protein. The organic-inorganic hybrid materials with spiral coiling characteristics are produced at the nanoscale. The resulted helixes are chiral with the left- and right-handed characteristics, which are agglomerated hierarchically to from clusters and networks. It is interesting that each cluster or network is homochiral so that the enantiomorphs can be separated readily. Actually, each homochiral architecture is evolved from an original chiral helix, demonstrating the heritage of the matrix chirality during the material proliferation under a racemic condition. By using the Ginzburg-Landaue expression we find that the chiral recognition in the organic-inorganic hybrid formation may be determined by a spontaneous chiral separation and immobilization of asymmetric amphiphilic molecules on the mineral surface, which transferred the structural information from the mother matrix to the descendants by an energetic control. This study shows how biomolecules guide the selective amplification of chiral materials via spontaneous self-replication. Such a strategy can be applied generally in the design and production of artificial materials with self-similar structure characteristics.
A Guide for Evaluating Consumer Education Programs and Materials.
ERIC Educational Resources Information Center
Lucht, Linda Lou, Ed.
The booklet was developed by the Committee on Criteria for Consumer Education Programs and Materials of the American Home Economics Association as a guide for the evaluation of consumer education programs and materials and for the development of such materials. A series of rating scales are presented, with discussion and explanation, in five…
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-25
... Releases of Airborne Radioactive Materials To the Environment for Licensees Other Than Power Reactors... Regulatory Guide (DG)-4018, ``Constraint on Releases of Airborne Radioactive Materials to the Environment for..., ``Constraint on Releases of Airborne Radioactive Materials to the Environment for Licensees Other than Power...
ERIC Educational Resources Information Center
Department of Agriculture, Washington, DC. Office of the Secretary.
Designed to help teachers bring more information about agriculture into their classrooms, this resource guide provides a listing of materials relating to agriculture available from private and public sources. It describes materials available from more than 300 organizations and publishers who responded to a request regarding materials they were…
High frequency guided wave propagation in monocrystalline silicon wafers
NASA Astrophysics Data System (ADS)
Pizzolato, Marco; Masserey, Bernard; Robyr, Jean-Luc; Fromme, Paul
2017-04-01
Monocrystalline silicon wafers are widely used in the photovoltaic industry for solar panels with high conversion efficiency. The cutting process can introduce micro-cracks in the thin wafers and lead to varying thickness. High frequency guided ultrasonic waves are considered for the structural monitoring of the wafers. The anisotropy of the monocrystalline silicon leads to variations of the wave characteristics, depending on the propagation direction relative to the crystal orientation. Full three-dimensional Finite Element simulations of the guided wave propagation were conducted to visualize and quantify these effects for a line source. The phase velocity (slowness) and skew angle of the two fundamental Lamb wave modes (first anti-symmetric mode A0 and first symmetric mode S0) for varying propagation directions relative to the crystal orientation were measured experimentally. Selective mode excitation was achieved using a contact piezoelectric transducer with a custom-made wedge and holder to achieve a controlled contact pressure. The out-of-plane component of the guided wave propagation was measured using a noncontact laser interferometer. Good agreement was found with the simulation results and theoretical predictions based on nominal material properties of the silicon wafer.
Effect of skew angle on second harmonic guided wave measurement in composite plates
NASA Astrophysics Data System (ADS)
Cho, Hwanjeong; Choi, Sungho; Lissenden, Cliff J.
2017-02-01
Waves propagating in anisotropic media are subject to skewing effects due to the media having directional wave speed dependence, which is characterized by slowness curves. Likewise, the generation of second harmonics is sensitive to micro-scale damage that is generally not detectable from linear features of ultrasonic waves. Here, the effect of skew angle on second harmonic guided wave measurement in a transversely isotropic lamina and a quasi-isotropic laminate are numerically studied. The strain energy density function for a nonlinear transversely isotropic material is formulated in terms of the Green-Lagrange strain invariants. The guided wave mode pairs for cumulative second harmonic generation in the plate are selected in accordance with the internal resonance criteria - i.e., phase matching and non-zero power flux. Moreover, the skew angle dispersion curves for the mode pairs are obtained from the semi-analytical finite element method using the derivative of the slowness curve. The skew angles of the primary and secondary wave modes are calculated and wave propagation simulations are carried out using COMSOL. Numerical simulations revealed that the effect of skew angle mismatch can be significant for second harmonic generation in anisotropic media. The importance of skew angle matching on cumulative second harmonic generation is emphasized and the accompanying issue of the selection of internally resonant mode pairs for both a unidirectional transversely isotropic lamina and a quasi-isotropic laminate is demonstrated.
The Effectiveness of Guided Inquiry-based Learning Material on Students’ Science Literacy Skills
NASA Astrophysics Data System (ADS)
Aulia, E. V.; Poedjiastoeti, S.; Agustini, R.
2018-01-01
The purpose of this research is to describe the effectiveness of guided inquiry-based learning material to improve students’ science literacy skills on solubility and solubility product concepts. This study used Research and Development (R&D) design and was implemented to the 11th graders of Muhammadiyah 4 Senior High School Surabaya in 2016/2017 academic year with one group pre-test and post-test design. The data collection techniques used were validation, observation, test, and questionnaire. The results of this research showed that the students’ science literacy skills are different after implementation of guided inquiry-based learning material. The guided inquiry-based learning material is effective to improve students’ science literacy skills on solubility and solubility product concepts by getting N-gain score with medium and high category. This improvement caused by the developed learning material such as lesson plan, student worksheet, and science literacy skill tests were categorized as valid and very valid. In addition, each of the learning phases in lesson plan has been well implemented. Therefore, it can be concluded that the guided inquiry-based learning material are effective to improve students’ science literacy skills on solubility and solubility product concepts in senior high school.
Back-to-School Countdown: A Planning Guide for Time-Conscious Teachers.
ERIC Educational Resources Information Center
Spann, Mary Beth
1991-01-01
This planning guide for efficient use of the last weeks before school opens offers ideas for interactive hall and wall displays, a guide to self-made math manipulatives, a materials checklist, a four-week task planning countdown, and a listing of teacher resource books and other classroom materials. (SM)
African Heritage Curriculum Materials. Teacher's Manual.
ERIC Educational Resources Information Center
Museum of African Art, Washington, DC.
This guide for secondary teachers focuses on sub-Saharan (Black) African history and culture. Although the guide is intended to be used in conjunction with the audiovisual materials on African heritage produced by the Museum of African Art, it can also be used as a source of background reading for teachers and as a guide to additional…
ERIC Educational Resources Information Center
Zuckerman, Karen, Ed.
This resource guide provides information for counselors, physical therapists, and mental health professionals about alcohol and other drug problems of individuals with physical disabilities. The guide begins with 26 listings of prevention materials, including brochures, videotapes, classroom materials, and other items. Information provided for…
English as a Second Language for Adults: A Curriculum Guide.
ERIC Educational Resources Information Center
Selman, Mary; And Others
To help improve English as a Second Language (ESL) programs for adult learners, this curriculum guide provides informative materials for the teacher and 30 sections of lessons suitable for adaptation by the teacher. Teacher information includes materials on language teaching and learning, use of the guide, needs assessment, adapting lesson plans,…
The Holocaust and Genocide: A Search for Conscience. A Curriculum Guide.
ERIC Educational Resources Information Center
Flaim, Richard F., Ed.; Reynolds, Edwin W., Jr., Ed.
Designed to facilitate teacher development of a secondary unit on the Holocaust and genocide, this multidisciplinary curriculum guide provides a wide variety of classroom-tested objectives, learning activities, and materials. The guide is organized into six units which may be taught in sequence or used in part as supplementary materials: the…
ERIC Educational Resources Information Center
Northeast Wisconsin Technical Inst., Green Bay.
This curriculum guide contains 18 units for a course to assist apprentices in learning the pipefitting trade. Introductory materials include lists of suggested audiovisual materials, competencies, and textbooks and approximate times for each unit. Each instructional unit includes some or all of the following components: competencies, instructional…
Earth and Space Science. A Guide for Secondary Teachers.
ERIC Educational Resources Information Center
Bolles, William H.; And Others
Designed for use in Pennsylvania secondary school science classes, this guide is intended to provide fundamental information in each of the various disciplines of the earth sciences. Some of the material contained in the guide is intended as background material for teachers. Five units are presented: The Earth, The Oceans, The Space Environment,…
ERIC Educational Resources Information Center
Bennett, Mick; Wakeford, Richard
This guide is intended to help those responsible for choosing health care trainees to develop and improve their selection procedures. Special reference is given to health workers in maternal and child health. Chapter 1 deals with health care policy implications for selection of trainees, the different functions of selection and conflicts that…
NASA Technical Reports Server (NTRS)
Moore, Thomas C., Sr.
1997-01-01
The NASA Langley Research Center uses more than 10000 strain gages per year in supporting its various research programs. The character of the testing at LaRC is such that the types of strain gage installations, the materials they are applied to, and the test environments encountered, require many varied approaches for installing strain gages. These installations must be accomplished in the most technically discerning and appropriate manner. This technical memorandum is offered as an assisting guide in helping the strain gage user to determine the appropriate approach for a given strain gage application requirement. Specifically, this document offers detailed recommendations for strain gaging the following: LaRC-Designed balances, LARC custom transducers, certain composite materials and alloys, high-temperature test articles, and selected non-typical or unique materials or test conditions.
Advanced Materials Laboratory User Test Planning Guide
NASA Technical Reports Server (NTRS)
Orndoff, Evelyne
2012-01-01
Test process, milestones and inputs are unknowns to first-time users of the Advanced Materials Laboratory. The User Test Planning Guide aids in establishing expectations for both NASA and non-NASA facility customers. The potential audience for this guide includes both internal and commercial spaceflight hardware/software developers. It is intended to assist their test engineering personnel in test planning and execution. Material covered includes a roadmap of the test process, roles and responsibilities of facility and user, major milestones, facility capabilities, and inputs required by the facility. Samples of deliverables, test article interfaces, and inputs necessary to define test scope, cost, and schedule are included as an appendix to the guide.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-03-28
... Packaging Requirements for Shipment and Receipt of Radioactive Material AGENCY: Nuclear Regulatory... with Packaging Requirements for Shipment and Receipt of Radioactive Material.'' This regulatory guide... for transporting licensed material under 10 CFR part 71, ``Packaging and Transportation of Radioactive...
ERIC Educational Resources Information Center
Byrd, Patricia, Ed.
This guide is a collection of essays on the writing of English-as-a-Second-Language (ESL) textbooks and other instructional materials. Articles include: "Writing and Publishing Textbooks (Patricia Byrd); "The Craft of Materials Writing" (Fraida Dubin); "Considering Culture: Guidelines for ESL/EFL Textbook Writers" (Gayle Nelson); "Issues in the…
ERIC Educational Resources Information Center
National Council of Teachers of English, Urbana, IL.
This guide contains 550 annotations for English anthologies, textbooks, workbooks, multimedia packages, and other materials for grades 7-12. Works of literature, audiovisual materials, and professional publications are included only when integrally related to specific, listed instructional materials. Entries are grouped into the following subject…
Guide to Regeneration of Bottomland Hardwoods
Martha R. McKevlin
1992-01-01
This guide will help landowners, consulting foresters, and public service foresters regenerate bottomland hardwoods. It discusses (1) interpretation of site characteristics, (2) selection of species, and (3) selection of regeneration methods. A dichotomous key for selection of appropriate regeneration methods under various conditions is presented.
Assessment strategies for municipal selective waste collection schemes.
Ferreira, Fátima; Avelino, Catarina; Bentes, Isabel; Matos, Cristina; Teixeira, Carlos Afonso
2017-01-01
An important strategy to promote a strong sustainable growth relies on an efficient municipal waste management, and phasing out waste landfilling through waste prevention and recycling emerges as a major target. For this purpose, effective collection schemes are required, in particular those regarding selective waste collection, pursuing a more efficient and high quality recycling of reusable materials. This paper addresses the assessment and benchmarking of selective collection schemes, relevant to guide future operational improvements. In particular, the assessment is based on the monitoring and statistical analysis of a core-set of performance indicators that highlights collection trends, complemented with a performance index that gathers a weighted linear combination of these indicators. This combined analysis underlines a potential tool to support decision makers involved in the process of selecting the collection scheme with best overall performance. The presented approach was applied to a case study conducted in Oporto Municipality, with data gathered from two distinct selective collection schemes. Copyright © 2016 Elsevier Ltd. All rights reserved.
Change Detection via Selective Guided Contrasting Filters
NASA Astrophysics Data System (ADS)
Vizilter, Y. V.; Rubis, A. Y.; Zheltov, S. Y.
2017-05-01
Change detection scheme based on guided contrasting was previously proposed. Guided contrasting filter takes two images (test and sample) as input and forms the output as filtered version of test image. Such filter preserves the similar details and smooths the non-similar details of test image with respect to sample image. Due to this the difference between test image and its filtered version (difference map) could be a basis for robust change detection. Guided contrasting is performed in two steps: at the first step some smoothing operator (SO) is applied for elimination of test image details; at the second step all matched details are restored with local contrast proportional to the value of some local similarity coefficient (LSC). The guided contrasting filter was proposed based on local average smoothing as SO and local linear correlation as LSC. In this paper we propose and implement new set of selective guided contrasting filters based on different combinations of various SO and thresholded LSC. Linear average and Gaussian smoothing, nonlinear median filtering, morphological opening and closing are considered as SO. Local linear correlation coefficient, morphological correlation coefficient (MCC), mutual information, mean square MCC and geometrical correlation coefficients are applied as LSC. Thresholding of LSC allows operating with non-normalized LSC and enhancing the selective properties of guided contrasting filters: details are either totally recovered or not recovered at all after the smoothing. These different guided contrasting filters are tested as a part of previously proposed change detection pipeline, which contains following stages: guided contrasting filtering on image pyramid, calculation of difference map, binarization, extraction of change proposals and testing change proposals using local MCC. Experiments on real and simulated image bases demonstrate the applicability of all proposed selective guided contrasting filters. All implemented filters provide the robustness relative to weak geometrical discrepancy of compared images. Selective guided contrasting based on morphological opening/closing and thresholded morphological correlation demonstrates the best change detection result.
The Environment Film Review. A Critical Guide to Ecology Films.
ERIC Educational Resources Information Center
Environment Information Center, New York, NY.
Critical reviews of more than 600 environmental films selected from a field of several thousand are contained in this reference guide. Designed to provide a comprehensive selection of films covering all aspects of environmental affairs, from air pollution to wildlife, the guide is primarily user-oriented. It consists of two parts: a Review…
ERIC Educational Resources Information Center
Sharman, Ronald M.
This lesson is an introduction to disposal of sludge by landfill. A brief explanation of the complete process is provided, including discussions of sludge suitability, site selection, method selection and operation, site closure, and ultimate reuse. The lesson includes an instructor's guide and student workbook. The instructor's guide contains a…
Acoustic guide for noise-transmission testing of aircraft
NASA Technical Reports Server (NTRS)
Vaicaitis, Rimas (Inventor)
1987-01-01
Selective testing of aircraft or other vehicular components without requiring disassembly of the vehicle or components was accomplished by using a portable guide apparatus. The device consists of a broadband noise source, a guide to direct the acoustic energy, soft sealing insulation to seal the guide to the noise source and to the vehicle component, and noise measurement microphones, both outside the vehicle at the acoustic guide output and inside the vehicle to receive attenuated sound. By directing acoustic energy only to selected components of a vehicle via the acoustic guide, it is possible to test a specific component, such as a door or window, without picking up extraneous noise which may be transmitted to the vehicle interior through other components or structure. This effect is achieved because no acoustic energy strikes the vehicle exterior except at the selected component. Also, since the test component remains attached to the vehicle, component dynamics with vehicle frame are not altered.
Diversified Cooperative Training. A Bibliography.
ERIC Educational Resources Information Center
Florida State Univ., Tallahassee. Center for Instructional Development and Services.
This bibliography describes 52 materials available for use in cooperative education classes and career and guidance counseling. The materials include books, pamphlets, and brochures, films, curriculum guides, study guides, and workbooks. A few are suited for use with special needs students. Materials for inclusion in the bibliography were located…
Home and Family Management. A Bibliography.
ERIC Educational Resources Information Center
Florida State Univ., Tallahassee. Center for Instructional Development and Services.
This bibliography describes 133 materials available for use in home economics classes. The materials include books, pamphlets and brochures, films curriculum guides, study guides, and workbooks. A few are suited for use with special needs students. Materials for inclusion in the bibliography were located through the Florida Educational Information…
The 4M comPany: Make Mine Metric Marvels. Third Grade Teacher's Guide.
ERIC Educational Resources Information Center
Hawaii State Dept. of Education, Honolulu.
This is one of several teacher's guides for the 4M Company, a set of materials for teaching metric concepts and computation skills to elementary school students. Included in this guide are sections on needed materials, length (ancient Hawaiian units, meter decimeter, centimeter, addition, subtraction), decimals related to meters (measurement,…
The 4M companY: Make Mine Metric Mission! Sixth Grade Teacher's Guide.
ERIC Educational Resources Information Center
Hawaii State Dept. of Education, Honolulu.
This is one of several teacher's guides for the 4M Company, a set of materials for teaching metric concepts and computation skills to elementary school students. Included in the guide are sections on needed materials, metric symbols, length, perimeter, area, volume, capacity, mass (weight), decimals, conversion between metric units, temperature,…
Curriculum Guide for Marketing and Distributive Education (Second Year).
ERIC Educational Resources Information Center
South Carolina State Dept. of Education, Columbia. Office of Vocational Education.
This curriculum guide consists of materials for use in teaching the second year of a two-year course in marketing and distributive education. Included in the guide are field review information, an introduction, a course outline, a series of unit outlines, a bibliography, and a list of audiovisual materials. The following topics are addressed in…
Marketing and Distributive Education Curriculum Guide: Hardware-Building Materials, Farm and Garden.
ERIC Educational Resources Information Center
Cluck, Janice Bora
Designed to be used with the General Marketing Curriculum Planning Guide (ED 156 860), this guide is intended to provide the curriculum coordinator with a basis for planning a comprehensive program in the field of marketing for farm and garden hardware building materials; it is designed also to allow marketing and distributive education…
Germany: The Search for Unity. Guide for Workshop Leaders.
ERIC Educational Resources Information Center
Blankenship, Glen
This document is designed to support teachers in the use of instructional materials related to contemporary Germany. The materials in this guide provide the basis for a one-day, 5 hour inservice session. The workshop agenda begins the guide and sets out the schedule of times for different activities and instruction. The suggested format can be…
Kastenmayer, Robin J; Moore, Rashida M; Bright, Allison L; Torres-Cruz, Rafael; Elkins, William R
2012-01-01
In the interval between the publication of the seventh and eighth editions of the Guide for the Care and Use of Laboratory Animals (Guide), much has changed with regard to the regulation and funding of highly pathogenic biologic agents and toxins (Select Agents). Funding of research involving highly pathogenic agents has increased dramatically during this time, thus increasing the demand for facilities capable of supporting this work. The eighth edition of the Guide briefly mentions Select Agents and provides a limited set of references. Here we provide some background information regarding the relevant laws and regulations, as well as an overview of the programmatic requirements pertaining to the use of Select Agents, with a focus on use in animals. PMID:22776191
NRT-1: Hazardous Materials Planning Guide
The NRT issued Hazardous Materials Emergency Planning Guide (NRT1) in 1987, as required by EPCRA, to provide planning guidance for state and local governments in the development of local emergency response plans.
A Guide to Drug Abuse Education and Information Materials.
ERIC Educational Resources Information Center
National Inst. on Drug Abuse (DHEW/PHS), Rockville, MD. National Clearinghouse for Drug Abuse Information.
Drug-abuse-prevention materials developed by and available from the National Institute of Mental Health, National Clearinghouse for Drug Abuse Information are described in this guide. The materials are television and radio spots, print ads, posters, a federal source book, flyers, special audience publications, information for the professional,…
Data Processing Volume I. Instructor's Guide.
ERIC Educational Resources Information Center
Vittetoe, Jerry
These instructional materials are intended as a guide for the instructor of a block course in introductory vocational data processing. A textbook and supplementary materials of the instructor's choice would probably be used in conjunction with these materials. Topics covered in the 11 units are background and uses of data processing, input/output…
Guided wave phased array sensor tuning for improved defect detection and characterization
NASA Astrophysics Data System (ADS)
Philtron, Jason H.; Rose, Joseph L.
2014-03-01
Ultrasonic guided waves are finding increased use in a variety of Nondestructive Evaluation and Structural Health Monitoring applications due to their efficiency in defect detection using a sensor at a single location to inspect a large area of a structure and an ability to inspect hidden and coated areas for example. With a thorough understanding of guided wave mechanics, researchers can predict which guided wave modes will have a high probability of success in a particular nondestructive evaluation application. For example, in a sample problem presented here to access bond integrity, researchers may choose to use a guided wave mode which has high in-plane displacement, stress, or other feature at the interface. However, since material properties used for modeling work may not be precise for the development of dispersion curves, in many cases guided wave mode and frequency selection should be adjusted for increased inspection efficiency in the field. In this work, a phased array comb transducer is used to sweep over phase velocity - frequency space to tune mode excitation for improved defect characterization performance. A thin polycarbonate layer bonded to a thick metal plate is considered with a contaminated surface prior to bonding. Physicallybased features are used to correlate wave signals with defect detection. Features assessed include arrival time and the frequency of maximum amplitude. A pseudo C-scan plot is presented which can be used to simplify data analysis. Excellent results are obtained.
ERIC Educational Resources Information Center
Havas, George D.
This brief guide to materials in the Library of Congress (LC) on computer aided design and/or computer aided manufacturing lists reference materials and other information sources under 13 headings: (1) brief introductions; (2) LC subject headings used for such materials; (3) textbooks; (4) additional titles; (5) glossaries and handbooks; (6)…
Microfabricated bragg waveguide
Fleming, James G.; Lin, Shawn-Yu; Hadley, G. Ronald
2004-10-19
A microfabricated Bragg waveguide of semiconductor-compatible material having a hollow core and a multilayer dielectric cladding can be fabricated by integrated circuit technologies. The microfabricated Bragg waveguide can comprise a hollow channel waveguide or a hollow fiber. The Bragg fiber can be fabricated by coating a sacrificial mandrel or mold with alternating layers of high- and low-refractive-index dielectric materials and then removing the mandrel or mold to leave a hollow tube with a multilayer dielectric cladding. The Bragg channel waveguide can be fabricated by forming a trench embedded in a substrate and coating the inner wall of the trench with a multilayer dielectric cladding. The thicknesses of the alternating layers can be selected to satisfy the condition for minimum radiation loss of the guided wave.
The fundamentals of biotribology and its application to spine arthroplasty
Harper, Megan L.; Dooris, Andrew; Paré, Philippe E.
2009-01-01
The biological effect of wear of articulating surfaces is a continued concern with large joint replacements and, likewise, of interest for total disc replacements. There are a number of important biotribological testing parameters that can greatly affect the outcome of a wear study in addition to the implant design and material selection. The current ASTM and ISO wear testing standards/guides for spine arthroplasty leave many choices as testing parameters. These factors include but are not limited to the sequence of kinematics and load, phasing, type of lubricant, and specimen preparation (sterilization and artificial aging). The spinal community should critically assess wear studies and be cognizant of the influence of the selected parameters on the test results. PMID:25802638
Directed-Assembly of Carbon Nanotubes on Soft Substrates for Flexible Biosensor Array
NASA Astrophysics Data System (ADS)
Lee, Hyoung Woo; Koh, Juntae; Lee, Byung Yang; Kim, Tae Hyun; Lee, Joohyung; Hong, Seunghun; Yi, Mihye; Jhon, Young Min
2009-03-01
We developed a method to selectively assemble and align carbon nanotubes (CNTs) on soft substrates for flexible biosensors. In this strategy, thin oxide layer was deposited on soft substrates via low temperature plasma enhanced chemical vapor deposition, and linker-free assembly process was applied onto the oxide surface where the assembly of carbon nanotubes was guided by methyl-terminated molecular patterns on the oxide surface. The electrical characterization of the fabricated CNT devices exhibited typical p-type gating effect and 1/f noise behavior. The bare oxide regions near CNTs were functionalized with glutamate oxidase to fabricate selective biosensors to detect two forms of glutamate substances existing in different situations: L-glutamic acid, a neuro-transmitting material, and monosodium glutamate, a food additive.
Magnetic Resonance Lymphography-Guided Selective High-Dose Lymph Node Irradiation in Prostate Cancer
DOE Office of Scientific and Technical Information (OSTI.GOV)
Meijer, Hanneke J.M., E-mail: H.Meijer@rther.umcn.nl; Debats, Oscar A.; Kunze-Busch, Martina
2012-01-01
Purpose: To demonstrate the feasibility of magnetic resonance lymphography (MRL) -guided delineation of a boost volume and an elective target volume for pelvic lymph node irradiation in patients with prostate cancer. The feasibility of irradiating these volumes with a high-dose boost to the MRL-positive lymph nodes in conjunction with irradiation of the prostate using intensity-modulated radiotherapy (IMRT) was also investigated. Methods and Materials: In 4 prostate cancer patients with a high risk of lymph node involvement but no enlarged lymph nodes on CT and/or MRI, MRL detected pathological lymph nodes in the pelvis. These lymph nodes were identified and delineatedmore » on a radiotherapy planning CT to create a boost volume. Based on the location of the MRL-positive lymph nodes, the standard elective pelvic target volume was individualized. An IMRT plan with a simultaneous integrated boost (SIB) was created with dose prescriptions of 42 Gy to the pelvic target volume, a boost to 60 Gy to the MRL-positive lymph nodes, and 72 Gy to the prostate. Results: All MRL-positive lymph nodes could be identified on the planning CT. This information could be used to delineate a boost volume and to individualize the pelvic target volume for elective irradiation. IMRT planning delivered highly acceptable radiotherapy plans with regard to the prescribed dose levels and the dose to the organs at risk (OARs). Conclusion: MRL can be used to select patients with limited lymph node involvement for pelvic radiotherapy. MRL-guided delineation of a boost volume and an elective pelvic target volume for selective high-dose lymph node irradiation with IMRT is feasible. Whether this approach will result in improved outcome for these patients needs to be investigated in further clinical studies.« less
Micromechanics Analysis Code With Generalized Method of Cells (MAC/GMC): User Guide. Version 3
NASA Technical Reports Server (NTRS)
Arnold, S. M.; Bednarcyk, B. A.; Wilt, T. E.; Trowbridge, D.
1999-01-01
The ability to accurately predict the thermomechanical deformation response of advanced composite materials continues to play an important role in the development of these strategic materials. Analytical models that predict the effective behavior of composites are used not only by engineers performing structural analysis of large-scale composite components but also by material scientists in developing new material systems. For an analytical model to fulfill these two distinct functions it must be based on a micromechanics approach which utilizes physically based deformation and life constitutive models and allows one to generate the average (macro) response of a composite material given the properties of the individual constituents and their geometric arrangement. Here the user guide for the recently developed, computationally efficient and comprehensive micromechanics analysis code, MAC, who's predictive capability rests entirely upon the fully analytical generalized method of cells, GMC, micromechanics model is described. MAC/ GMC is a versatile form of research software that "drives" the double or triply periodic micromechanics constitutive models based upon GMC. MAC/GMC enhances the basic capabilities of GMC by providing a modular framework wherein 1) various thermal, mechanical (stress or strain control) and thermomechanical load histories can be imposed, 2) different integration algorithms may be selected, 3) a variety of material constitutive models (both deformation and life) may be utilized and/or implemented, and 4) a variety of fiber architectures (both unidirectional, laminate and woven) may be easily accessed through their corresponding representative volume elements contained within the supplied library of RVEs or input directly by the user, and 5) graphical post processing of the macro and/or micro field quantities is made available.
Joshi, Niranjan; Shetty, Sridhar N; Prasad, Krishna D
2013-01-01
The use of different materials and techniques has been studied to decide the safest quantum of reduction of the occlusal surfaces. However, these methods provide limited information as to the actual amount of reduction with limitations in accuracy, accessibility and complexity. The objective of this study was to compare and evaluate the reliability of the most commonly used occlusal registration wax that with polyether bite registration material as a guide for occlusal reduction required during tooth preparations. For the purpose of this study, 25 abutment teeth requiring tooth preparation for fixed prosthesis were selected and tooth preparations carried out. Modeling wax strips of specific dimensions were placed onto the cast of prepared tooth, which was mounted on maximum intercuspation on the articulator and the articulator was closed. The thickness of the wax registration was measured at three zones namely two functional cusps and central fossa. Similar measurements were made using the polyether bite registration material and prosthesis at the same zones. The data was tabulated and was subjected to statistical analysis using anova test and Tukey honestly significant difference test. The differences in thickness between wax record and prosthesis by 0.1346 mm, whereas the difference between polyether and prosthesis was 0.02 mm with a P value of 0.042, which is statistically significant. This means that the wax record was 8.25% larger than the prosthesis while polyether was just 1.27% larger than the prosthesis. The clinical significance of the above analysis is that Ramitec polyether bite registration material is most suitable material when compared with commonly used modeling wax during the tooth preparation.
Power and Energy: Industrial Arts Curriculum Guide. Grades 9-12. Curriculum Guide 1335 (Tentative).
ERIC Educational Resources Information Center
Louisiana State Dept. of Education, Baton Rouge.
The tentative guide in power and energy for senior high school use is part of a series of industrial arts curriculum materials developed by the State of Louisiana. The course is designed to provide "hands-on" experience with tools and materials along with a study of the industrial processes in power and energy. In addition, the student…
Oh, Ji-Hyeon
2018-12-01
With the development of computer-aided design/computer-aided manufacturing (CAD/CAM) technology, it has been possible to reconstruct the cranio-maxillofacial defect with more accurate preoperative planning, precise patient-specific implants (PSIs), and shorter operation times. The manufacturing processes include subtractive manufacturing and additive manufacturing and should be selected in consideration of the material type, available technology, post-processing, accuracy, lead time, properties, and surface quality. Materials such as titanium, polyethylene, polyetheretherketone (PEEK), hydroxyapatite (HA), poly-DL-lactic acid (PDLLA), polylactide-co-glycolide acid (PLGA), and calcium phosphate are used. Design methods for the reconstruction of cranio-maxillofacial defects include the use of a pre-operative model printed with pre-operative data, printing a cutting guide or template after virtual surgery, a model after virtual surgery printed with reconstructed data using a mirror image, and manufacturing PSIs by directly obtaining PSI data after reconstruction using a mirror image. By selecting the appropriate design method, manufacturing process, and implant material according to the case, it is possible to obtain a more accurate surgical procedure, reduced operation time, the prevention of various complications that can occur using the traditional method, and predictive results compared to the traditional method.
Peace through health II: a framework for medical student education.
Arya, Neil
2004-01-01
The world's first university course in Peace through Health (PtH) recently finished at McMaster University, Hamilton, Canada. Medical students and academic staff in Canada and Europe have expressed interest in developing this course for other medical schools. Seven medical students were selected to do an unofficial 'audit' in return for 'in kind' work, developing the course materials for the web and adaptation to the medical curriculum. This article sets out the goals and structure of the course as a guide for similar teaching models.
The control of float zone interfaces by the use of selected boundary conditions
NASA Technical Reports Server (NTRS)
Foster, L. M.; Mcintosh, J.
1983-01-01
The main goal of the float zone crystal growth project of NASA's Materials Processing in Space Program is to thoroughly understand the molten zone/freezing crystal system and all the mechanisms that govern this system. The surface boundary conditions required to give flat float zone solid melt interfaces were studied and computed. The results provide float zone furnace designers with better methods for controlling solid melt interface shapes and for computing thermal profiles and gradients. Documentation and a user's guide were provided for the computer software.
Guided elastic waves in a pre-stressed compressible interlayer
Sotiropoulos
2000-03-01
The propagation of guided elastic waves in a pre-stressed elastic compressible layer embedded in a different compressible material is examined. The waves propagate parallel to the planar layer interfaces as a superposed dynamic stress state on the statically pre-stressed layer and host material. The underlying stress condition in the two materials is characterized by equibiaxial in-plane deformations with common principal axes of strain, one of the axes being perpendicular to the layering. Both materials have arbitrary strain energy functions. The dispersion equation is derived in explicit form. Analysis of the dispersion equation reveals the propagation characteristics and their dependence on frequency, material parameters and stress parameters. Combinations of these parameters are also defined for which guided waves cannot propagate.
PACE (Revised). Resource Guide. Research & Development Series No. 240D.
ERIC Educational Resources Information Center
Ashmore, M. Catherine; Pritz, Sandra G.
This resource guide contains information on the Program for Acquiring Competence in Entrepreneurship (PACE) materials, a glossary, and listings of sources of information. Introductory materials include a description of PACE, information on use of PACE materials, and objectives of the 18 units for all three levels at which they are developed. An…
ERIC Educational Resources Information Center
Zimmerman, Joy, Comp.
This guide lists resource materials that address agricultural occupational injuries and diseases and their prevention. Many of the entries were derived from the AGRICOLA database produced by the National Agricultural Library and include journal articles, books, government reports, training materials, and audiovisual materials. The first section…
Staff Manual for Instructional Material Centers. Fourth Revised Edition.
ERIC Educational Resources Information Center
Petrucci, Martha
For media center volunteers or inexperienced technicians, a workshop training guide provides reference and assistance in everyday problems and situations that arise in an instructional material center (IMC). Two five-hour days of instruction and participation, using the guide, are suggested for workshops. Step-by-step processing of book materials,…
The Market System: Does It Work? Teacher's Edition.
ERIC Educational Resources Information Center
O'Neill, James B.
This document is the teacher's guide for SO 008 864. Developed for secondary students, the materials aid students in the understanding of the United States economic system. Along with the narrative found in the student materials, the guide presents objectives, concepts, procedures, and evaluation for completing the unit. The materials are arranged…
Electronics. Module 1: Electronic Safety. Instructor's Guide.
ERIC Educational Resources Information Center
Tharp, Bill
This guide contains instructor's materials for a three-unit secondary school course on electronic safety. The units are shop safety principles, hand tools, and alternating current safety and protection devices. The document begins with advice on its use and a cross-referenced table of instructional materials that show which materials in the guide…
An Annotated Guide to Audio-Visual Materials for Teaching Shakespeare.
ERIC Educational Resources Information Center
Albert, Richard N.
Audio-visual materials, found in a variety of periodicals, catalogs, and reference works, are listed in this guide to expedite the process of finding appropriate classroom materials for a study of William Shakespeare in the classroom. Separate listings of films, filmstrips, and recordings are provided, with subdivisions for "The Plays"…
Unit: Sticking Together, First Trial Materials, Inspection Set.
ERIC Educational Resources Information Center
Australian Science Education Project, Toorak, Victoria.
These materials, including teacher's guide, student test booklet and laboratory guide, student workbook, test booklet, and a booklet explaining the answers to the questions in the test booklet, are first trial versions of a unit that will form part of the Australian Science Education Project instructional materials for grades seven through ten.…
ERIC Educational Resources Information Center
North Carolina State Dept. of Public Instruction, Raleigh. Div. of Vocational Education.
This guide is intended for use in teaching an introductory course in manufacturing materials and processes. The course centers around four basic materials--metallics, polymers, ceramics, and composites--and seven manufacturing processes--casting, forming, molding, separating, conditioning, assembling, and finishing. Concepts and classifications of…
Educating for Peace: A Resource Guide for Teachers and Community Workers.
ERIC Educational Resources Information Center
Educating for Peace, Ottawa (Ontario).
This resource guide provides educators and community workers with a listing of written materials, audio-visual materials, and Ottawa-Carleton (Canada) area speakers dealing with peace education. The first of three parts lists 27 books, kits, and curriculum materials. For each listing, appropriate grade level, annotation, ordering address, and…
Photonic Switching Devices Using Light Bullets
NASA Technical Reports Server (NTRS)
Goorjian, Peter M. (Inventor)
1999-01-01
A unique ultra-fast, all-optical switching device or switch is made with readily available, relatively inexpensive, highly nonlinear optical materials. which includes highly nonlinear optical glasses, semiconductor crystals and/or multiple quantum well semiconductor materials. At the specified wavelengths. these optical materials have a sufficiently negative group velocity dispersion and high nonlinear index of refraction to support stable light bullets. The light bullets counter-propagate through, and interact within the waveguide to selectively change each others' directions of propagation into predetermined channels. In one embodiment, the switch utilizes a rectangularly planar slab waveguide. and further includes two central channels and a plurality of lateral channels for guiding the light bullets into and out of the waveguide. An advantage of the present all-optical switching device lies in its practical use of light bullets, thus preventing the degeneration of the pulses due to dispersion and diffraction at the front and back of the pulses. Another advantage of the switching device is the relative insensitivity of the collision process to the time difference in which the counter-propagating pulses enter the waveguide. since. contrary to conventional co-propagating spatial solitons, the relative phase of the colliding pulses does not affect the interaction of these pulses. Yet another feature of the present all-optical switching device is the selection of the light pulse parameters which enables the generation of light bullets in nonlinear optical materials. including highly nonlinear optical glasses and semiconductor materials such as semiconductor crystals and/or multiple quantum well semiconductor materials.
Developing a virtual community for health sciences library book selection: Doody's Core Titles.
Shedlock, James; Walton, Linda J
2006-01-01
The purpose of this article is to describe Doody's Core Titles in the Health Sciences as a new selection guide and a virtual community based on an effective use of online systems and to describe its potential impact on library collection development. The setting is the availability of health sciences selection guides. Participants include Doody Enterprise staff, Doody's Library Board of Advisors, content specialists, and library selectors. Resources include the online system used to create Doody's Core Titles along with references to complementary databases. Doody's Core Titles is described and discussed in relation to the literature of selection guides, especially in comparison to the Brandon/Hill selected lists that were published from 1965 to 2003. Doody's Core Titles seeks to fill the vacuum created when the Brandon/Hill lists ceased publication. Doody's Core Titles is a unique selection guide based on its method of creating an online community of experts to identify and score a core list of titles in 119 health sciences specialties and disciplines. The result is a new selection guide, now available annually, that will aid health sciences librarians in identifying core titles for local collections. Doody's Core Titles organizes the evaluation of core titles that are identified and recommended by content specialists associated with Doody's Book Review Service and library selectors. A scoring mechanism is used to create the selection of core titles, similar to the star rating system employed in other Doody Enterprise products and services.
Characterization of the new neutron imaging and materials science facility IMAT
NASA Astrophysics Data System (ADS)
Minniti, Triestino; Watanabe, Kenichi; Burca, Genoveva; Pooley, Daniel E.; Kockelmann, Winfried
2018-04-01
IMAT is a new cold neutron imaging and diffraction instrument located at the second target station of the pulsed neutron spallation source ISIS, UK. A broad range of materials science and materials testing areas will be covered by IMAT. We present the characterization of the imaging part, including the energy-selective and energy-dispersive imaging options, and provide the basic parameters of the radiography and tomography instrument. In particular, detailed studies on mono and bi-dimensional neutron beam flux profiles, neutron flux as a function of the neutron wavelength, spatial and energy dependent neutron beam uniformities, guide artifacts, divergence and spatial resolution, and neutron pulse widths are provided. An accurate characterization of the neutron beam at the sample position, located 56 m from the source, is required to optimize collection of radiographic and tomographic data sets and for performing energy-dispersive neutron imaging via time-of-flight methods in particular.
Manimaran, P; Sadan, D Sai
2016-10-01
Smile is one of the most important interactive communication skills of a person. A smile is the key factor for an aesthetic appearance. Hence aesthetics is one of the motivating factor for the patients to seek dental care. Correction of unaesthetic appearance gives a positive effect to the self esteem of the patient. The aim of this study was to compare the difference in the shade between the commercially available shade guides namely Vita Classical And Ivoclar Chromascop and the fired porcelain samples fabricated using Vita Zahnfabrik VMK 95 and Ivoclar Classic Materials respectively. The objective of this study was to obtain a matching brand of material that has a particular shade tab among the brands used. To conclude, Ivoclar material matched the chromascop shade guide better than the vita material matched the vita classic shade guide.
Kalantari, Mohammad Hassan; Ghoraishian, Seyed Ahmad; Mohaghegh, Mina
2017-01-01
Objective: The aim of this in vitro study was to evaluate the accuracy of shade matching using two spectrophotometric devices. Materials and Methods: Thirteen patients who require a full coverage restoration for one of their maxillary central incisors were selected while the adjacent central incisor was intact. 3 same frameworks were constructed for each tooth using computer-aided design and computer-aided manufacturing technology. Shade matching was performed using Vita Easyshade spectrophotometer, Shadepilot spectrophotometer, and Vitapan classical shade guide for the first, second, and third crown subsequently. After application, firing, and glazing of the porcelain, the color was evaluated and scored by five inspectors. Results: Both spectrophotometric systems showed significantly better results than visual method (P < 0.05) while there were no significant differences between Vita Easyshade and Shadepilot spectrophotometers (P < 0.05). Conclusion: Spectrophotometers are a good substitute for visual color selection methods. PMID:28729792
ERIC Educational Resources Information Center
National Council of Teachers of English, Urbana, IL.
This supplement to the "NCTE Guide to Teaching Materials for English, Grades 7-12" contains annotations for English anthologies, textbooks, workbooks, multimedia packages, and other materials for the junior high and high school levels. Works of literature, audiovisual materials, and professional publications are included when related to specific,…
Fusion Sciences Education Outreach in the Middle Schools, an Unplanned Case Study
NASA Astrophysics Data System (ADS)
Danielson, C. A.
1997-11-01
Before bringing a class to General Atomics (GA) for the DIII--D educational tour, the teacher is provided with pre-tour materials which include a videotape, curriculum notebook and fusion poster. These materials are used in the classroom to familiarize students with fusion concepts before the tour. This presentation will focus on the results of projects of 7th grade students of Chula Vista Junior High School (a magnet school for performing arts with a majority of Hispanic students). The assignment given by Physics Teacher Caryn Hoffman to her students prior to the tour was to focus on one or two of the DIII--D tour guides, ask questions relating to their careers in science and then prepare a presentation based on their interviews and their tour experience. The completed projects were very diverse -- calendars, comic strips, newspapers, plays, and board games were some of the media the students used. Tour guides selected by the students ranged from physicists, designers and computer support personnel. Project results reflected a surprisingly good understanding of fusion science concepts. Subsequent classroom interviews with the students demonstrated an overall increase in science interest and a specific interest in plasma and fusion research.
Guiding nanocrystal organization within mesoscale lipid thin-film templates
NASA Astrophysics Data System (ADS)
Steer, Dylan; Zhai, You; Oh, Nuri; Shim, Moonsub; Leal, Cecilia
Recently a great deal of interest has been established in the cooperative intermolecular interactions in hard and soft meso-structured composite materials. Much of this research has focused on the effects of nanoparticle incorporation into block copolymers that otherwise self-assemble into periodic mesostructures through microphase separation. Through careful selection of the polymer components the nanoparticles can be directed to also microphase separate and therefore exhibit symmetry induced by the block copolymers. Such systems are promising for enabling the organization of nanoparticle superstructures. Although this is useful in many applications such as in bottom-up assembly of opti-electronic materials, most of these applications would benefit from interplay between structure and dynamics. Much like block-copolymers, lipids can self-assembly into a variety of structures with 1D lamellar, 2D Hexagonal, and 3D cubic symmetry. However, unlike block-copolymers phase stabilization and conversion from one geometry to another happens under a minute. We will show our recent efforts into using lipid thin films to guide the assembly of nanoparticle superstructures resembling those displayed by lipid polymorphs and how they distort lipid equilibrium phase behavior. Funding from the Office of Naval Research.
Guiding principles for printed education materials: design preferences of people with aphasia.
Rose, Tanya A; Worrall, Linda E; Hickson, Louise M; Hoffmann, Tammy C
2012-02-01
The objectives of this study were to obtain the preferences of people with aphasia for the design of stroke and aphasia printed education materials (PEMs) and to compare these preferences with recommendations in the literature for developing written information for other populations. A face-to-face quantitative questionnaire was completed with 40 adults with aphasia post-stroke. The questionnaire explored preferences for: (1) the representation of numbers, (2) font size and type, (3) line spacing, (4) document length, and (5) graphic type. Most preferences (62.4%, n = 146) were for numbers expressed as figures rather than words. The largest proportion of participants selected 14 point (28.2%, n = 11) and Verdana ref (33.3%, n = 13) as the easiest font size and type to read, and a preference for 1.5 line spacing (41.0%, n = 16) was identified. Preference for document length was not related to the participant's reading ability or aphasia severity. Most participants (95.0%, n = 38) considered graphics to be helpful, with photographs more frequently reported as a helpful graphic type. The identified preferences support many of the formatting recommendations found within the literature. This research provides guiding principles for developing PEMs in preferred formats for people with aphasia.
Selective and self-guided micro-ablation of tissue with plasmonic nanobubbles.
Lukianova-Hleb, Ekaterina Y; Koneva, Irina I; Oginsky, Alexander O; La Francesca, Saverio; Lapotko, Dmitri O
2011-03-01
The accuracy, selectivity, and safety of surgical and laser methods for tissue elimination are often limited at microscale. We developed a novel agent, the plasmonic nanobubble (PNB), for optically guided selective elimination of the target tissue with micrometer precision. PNBs were tested in vitro in the two different models of superficial tumors and vascular plaques. PNBs were selectively generated around gold nanoparticles (delivered to the target tissues) with short laser pulses. Monolayers of cancerous cells and atherosclerotic plaque tissue were eliminated with PNBs with micrometer accuracy and without thermal and mechanical damage to collateral normal tissues. The effect of the PNB was dynamically controlled through the fluence of laser pulses (532 nm, duration 0.5 and 10 ns) and was guided through the optical scattering by PNB. Plasmonic nanobubbles were shown to provide precise, tunable, selective, and guided ablation of tissue at a microscopic level and could be employed as a new generation of surgical tools. Copyright © 2011 Elsevier Inc. All rights reserved.
Expert-guided optimization for 3D printing of soft and liquid materials.
Abdollahi, Sara; Davis, Alexander; Miller, John H; Feinberg, Adam W
2018-01-01
Additive manufacturing (AM) has rapidly emerged as a disruptive technology to build mechanical parts, enabling increased design complexity, low-cost customization and an ever-increasing range of materials. Yet these capabilities have also created an immense challenge in optimizing the large number of process parameters in order achieve a high-performance part. This is especially true for AM of soft, deformable materials and for liquid-like resins that require experimental printing methods. Here, we developed an expert-guided optimization (EGO) strategy to provide structure in exploring and improving the 3D printing of liquid polydimethylsiloxane (PDMS) elastomer resin. EGO uses three steps, starting first with expert screening to select the parameter space, factors, and factor levels. Second is a hill-climbing algorithm to search the parameter space defined by the expert for the best set of parameters. Third is expert decision making to try new factors or a new parameter space to improve on the best current solution. We applied the algorithm to two calibration objects, a hollow cylinder and a five-sided hollow cube that were evaluated based on a multi-factor scoring system. The optimum print settings were then used to print complex PDMS and epoxy 3D objects, including a twisted vase, water drop, toe, and ear, at a level of detail and fidelity previously not obtained.
Expert-guided optimization for 3D printing of soft and liquid materials
Abdollahi, Sara; Davis, Alexander; Miller, John H.
2018-01-01
Additive manufacturing (AM) has rapidly emerged as a disruptive technology to build mechanical parts, enabling increased design complexity, low-cost customization and an ever-increasing range of materials. Yet these capabilities have also created an immense challenge in optimizing the large number of process parameters in order achieve a high-performance part. This is especially true for AM of soft, deformable materials and for liquid-like resins that require experimental printing methods. Here, we developed an expert-guided optimization (EGO) strategy to provide structure in exploring and improving the 3D printing of liquid polydimethylsiloxane (PDMS) elastomer resin. EGO uses three steps, starting first with expert screening to select the parameter space, factors, and factor levels. Second is a hill-climbing algorithm to search the parameter space defined by the expert for the best set of parameters. Third is expert decision making to try new factors or a new parameter space to improve on the best current solution. We applied the algorithm to two calibration objects, a hollow cylinder and a five-sided hollow cube that were evaluated based on a multi-factor scoring system. The optimum print settings were then used to print complex PDMS and epoxy 3D objects, including a twisted vase, water drop, toe, and ear, at a level of detail and fidelity previously not obtained. PMID:29621286
Learning from data to design functional materials without inversion symmetry
Balachandran, Prasanna V.; Young, Joshua; Lookman, Turab; Rondinelli, James M.
2017-01-01
Accelerating the search for functional materials is a challenging problem. Here we develop an informatics-guided ab initio approach to accelerate the design and discovery of noncentrosymmetric materials. The workflow integrates group theory, informatics and density-functional theory to uncover design guidelines for predicting noncentrosymmetric compounds, which we apply to layered Ruddlesden-Popper oxides. Group theory identifies how configurations of oxygen octahedral rotation patterns, ordered cation arrangements and their interplay break inversion symmetry, while informatics tools learn from available data to select candidate compositions that fulfil the group-theoretical postulates. Our key outcome is the identification of 242 compositions after screening ∼3,200 that show potential for noncentrosymmetric structures, a 25-fold increase in the projected number of known noncentrosymmetric Ruddlesden-Popper oxides. We validate our predictions for 19 compounds using phonon calculations, among which 17 have noncentrosymmetric ground states including two potential multiferroics. Our approach enables rational design of materials with targeted crystal symmetries and functionalities. PMID:28211456
ERIC Educational Resources Information Center
Jorstad, Helen
This packet of instructional materials, intended for advanced French students, contains a guide for teachers as well as a section of student materials focusing on ecology in France. The teacher's guide outlines the educational objectives and course components, and provides sample evaluation materials. Students are required to read several articles…
An overview of clinical tools used to assess neonatal abstinence syndrome.
Orlando, Susan
2014-01-01
Several clinical tools have been developed to quantify the severity of withdrawal signs and symptoms exhibited by infants born to substance-using mothers. Scores from the systematic assessments are used to guide treatment of infants with moderate to severe clinical signs. This article provides an overview of published assessment tools developed for infants with neonatal abstinence syndrome. Nurses caring for infants at risk for neonatal abstinence syndrome should be knowledgeable about the tools used to evaluate these infants and guide their treatment. The ideal assessment tool should be published and include item definitions and a protocol for administering the tool. Nurses need education and training to achieve competency and interobserver reliability in the use of a selected tool. Tool-specific materials should be used to standardize training and improve accuracy in assessments. Competent and knowledgeable nurses play a critical role in improving outcomes for infants with neonatal abstinence syndrome.
Fernández, Maria E; Gonzales, Alicia; Tortolero-Luna, Guillermo; Partida, Sylvia; Bartholomew, L Kay
2005-10-01
This article describes the development of the Cultivando La Salud program, an intervention to increase breast and cervical cancer screening for Hispanic farmworker women. Processes and findings of intervention mapping (IM), a planning process for development of theory and evidence-informed program are discussed. The six IM steps are presented: needs assessment, preparation of planning matrices, election of theoretic methods and practical strategies, program design, implementation planning, and evaluation. The article also describes how qualitative and quantitative findings informed intervention development. IM helped ensure that theory and evidence guided (a) the identification of behavioral and environmental factors related to a target health problem and (b) the selection of the most appropriate methods and strategies to address the identified determinants. IM also guided the development of program materials and implementation by lay health workers. Also reported are findings of the pilot study and effectiveness trial.
ERIC Educational Resources Information Center
Potterfield, James E.; And Others
This social studies unit includes a teaching guide, student text, study guide, teacher background material, and composite pretest/posttest covering archaeological methods, evolution, fossils and man, and development of culture during the prehistoric periods in the Old World. It is part of the Anthropology Curriculum Project and is designed for…
Developing Health and Family Planning Print Materials for Low-Literate Audiences: A Guide.
ERIC Educational Resources Information Center
Zimmerman, Margot; And Others
This manual offers guidelines for developing health and family planning support materials for illiterate and low-literate groups. The techniques used rely heavily on involvement of the target audience. Following the introduction, each of the nine sections of the guide discusses a separate step in the materials development process: (1) "target…
BIBLIOGRAPHIC GUIDE FOR ADVANCED PLACEMENT, CHEMISTRY.
ERIC Educational Resources Information Center
WILLIAMS, HARRY; KING, CLYDE
REFERENCES AND AUDIOVISUAL MATERIALS ARE LISTED IN THIS GUIDE FOR SECONDARY SCHOOL ADVANCED PLACEMENT CHEMISTRY TEACHERS AND LIBRARIANS. BOOKS, PERIODICALS, WALL CHARTS, FILMS, AND FILMSTRIPS ARE INCLUDED. CITATIONS ARE COMPLETE AND INCLUDE INFORMATION PERTINENT TO THE ACQUISITION OF THE MATERIALS. (AG)
Huang, Yan; Huang, Yang; Meng, Wenjun; Zhu, Minshen; Xue, Hongtao; Lee, Chun-Sing; Zhi, Chunyi
2015-02-04
The performance of many stretchable electronics, such as energy storage devices and strain sensors, is highly limited by the structural breakdown arising from the stretch imposed. In this article, we focus on a detailed study on materials matching between functional materials and their conductive substrate, as well as enhancement of the tolerance to stretch-induced performance degradation of stretchable supercapacitors, which are essential for the design of a stretchable device. It is revealed that, being widely utilized as the electrode material of the stretchable supercapacitor, metal oxides such as MnO2 nanosheets have serious strain-induced performance degradation due to their rigid structure. In comparison, with conducting polymers like a polypyrrole (PPy) film as the electrochemically active material, the performance of stretchable supercapacitors can be well preserved under strain. Therefore, a smart design is to combine PPy with MnO2 nanosheets to achieve enhanced tolerance to strain-induced performance degradation of MnO2-based supercapacitors, which is realized by fabricating an electrode of PPy-penetrated MnO2 nanosheets. The composite electrodes exhibit a remarkable enhanced tolerance to strain-induced performance degradation with well-preserved performance over 93% under strain. The detailed morphology and electrochemical impedance variations are investigated for the mechanism analyses. Our work presents a systematic investigation on the selection and matching of electrode materials for stretchable supercapacitors to achieve high performance and great tolerance to strain, which may guide the selection of functional materials and their substrate materials for the next-generation of stretchable electronics.
Nature-Inspired Structural Materials for Flexible Electronic Devices.
Liu, Yaqing; He, Ke; Chen, Geng; Leow, Wan Ru; Chen, Xiaodong
2017-10-25
Exciting advancements have been made in the field of flexible electronic devices in the last two decades and will certainly lead to a revolution in peoples' lives in the future. However, because of the poor sustainability of the active materials in complex stress environments, new requirements have been adopted for the construction of flexible devices. Thus, hierarchical architectures in natural materials, which have developed various environment-adapted structures and materials through natural selection, can serve as guides to solve the limitations of materials and engineering techniques. This review covers the smart designs of structural materials inspired by natural materials and their utility in the construction of flexible devices. First, we summarize structural materials that accommodate mechanical deformations, which is the fundamental requirement for flexible devices to work properly in complex environments. Second, we discuss the functionalities of flexible devices induced by nature-inspired structural materials, including mechanical sensing, energy harvesting, physically interacting, and so on. Finally, we provide a perspective on newly developed structural materials and their potential applications in future flexible devices, as well as frontier strategies for biomimetic functions. These analyses and summaries are valuable for a systematic understanding of structural materials in electronic devices and will serve as inspirations for smart designs in flexible electronics.
Nondestructive Evaluation and Health Monitoring of Adhesively Bonded Composite Structures
NASA Astrophysics Data System (ADS)
Roth, William Walker
As the growth of fiber reinforced composite materials continues in many industries, structural designers will have to look to new methods of joining components. In order to take full advantage of composite materials, such as increased stiffness, decreased weight, tailored material properties and increased fatigue life, mechanical fasteners will need to be replaced by adhesive bonding or welding, when possible. Mechanical fasteners require the drilling of holes, which damages the laminate and becomes the source of further fatigue damage. Also, an increase in laminate thickness or inclusion of other features is required for the material to withstand the bearing stress needed to preload fasteners. Adhesives transfer the load over a large area, do not require additional machining operations, provide increased stiffness through the joint, provide corrosion protection when joining dissimilar materials, and provide vibrational damping. Additionally, the repair of composite structures, which will become a major concern in the near future, will require the use of adhesive bonding for thermoset composites. In order for adhesives to be used to join primary aerospace structures they must meet certification requirements, which includes proof that the joint can withstand the required ultimate load without structural failure. For most components, nondestructive inspection is used to find critical flaws, which is combined with fracture mechanics to ensure that the structure can meet the requirements. This process works for some of the adhesive flaws, but other critical defects are not easily detected. Weak interface bonding is particularly challenging. This type of defect results in an interphase zone that may be only a dozen microns in thickness. Traditional bulk wave ultrasonic techniques cannot easily distinguish this zone from the interface between adherend and adhesive. This work considers two approaches to help solve this problem. Guided elastic wave propagation along laminate structures is highly dependent on the boundary conditions at the surface and between plies, especially at high frequencies. This work investigates how interfacial defects can alter the propagation of guided waves through bonded fiber reinforced composite materials. As well as how this information can be used to determine the interface properties and correlate the results with fracture parameters. The second approach investigates how structural health monitoring can be used to detect the growth of disbonds from service loads. A mode selection technique is proposed for selecting frequency ranges for electromechanical impedance spectroscopy.
Charge Density Engineering: A Feasibility Study
2013-11-22
15. Statistical Learning Guided Design of Materials Fritz Haber Institute – Theory Group Berlin , Germany June 17th 2013 16...Technology San Diego, CA June 6th 2013 15. Statistical Learning Guided Design of Materials Fritz Haber Institute – Theory Group Berlin
ERIC Educational Resources Information Center
Moore, Charles G.; And Others
This curriculum guide provides materials for a nine-duty course in carpentry. The nine duties are estimating materials, preparing building site, sharpening tools, building and installing foundation forms, installing rough framing, installing roof components, installing exterior finishes, installing interior finishes, and assembling and…
DOT National Transportation Integrated Search
2007-01-01
The proposed Mechanistic-Empirical Pavement Design Guide (MEPDG) procedure is an improved methodology for pavement design and evaluation of paving materials. Since this new procedure depends heavily on the characterization of the fundamental engineer...
Developing a virtual community for health sciences library book selection: Doody's Core Titles
Shedlock, James; Walton, Linda J.
2006-01-01
Purpose: The purpose of this article is to describe Doody's Core Titles in the Health Sciences as a new selection guide and a virtual community based on an effective use of online systems and to describe its potential impact on library collection development. Setting/Participants/Resources: The setting is the availability of health sciences selection guides. Participants include Doody Enterprise staff, Doody's Library Board of Advisors, content specialists, and library selectors. Resources include the online system used to create Doody's Core Titles along with references to complementary databases. Brief Description: Doody's Core Titles is described and discussed in relation to the literature of selection guides, especially in comparison to the Brandon/Hill selected lists that were published from 1965 to 2003. Doody's Core Titles seeks to fill the vacuum created when the Brandon/Hill lists ceased publication. Doody's Core Titles is a unique selection guide based on its method of creating an online community of experts to identify and score a core list of titles in 119 health sciences specialties and disciplines. Results/Outcome: The result is a new selection guide, now available annually, that will aid health sciences librarians in identifying core titles for local collections. Evaluation Method: Doody's Core Titles organizes the evaluation of core titles that are identified and recommended by content specialists associated with Doody's Book Review Service and library selectors. A scoring mechanism is used to create the selection of core titles, similar to the star rating system employed in other Doody Enterprise products and services. PMID:16404471
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kroes, Maarten W., E-mail: Maarten.Kroes@radboudumc.nl; Busser, Wendy M. H.; Hoogeveen, Yvonne L.
PurposeTo assess whether laser guidance can reduce fluoroscopy and procedure time of cone-beam computed tomography (CBCT)-guided radiofrequency (RF) ablations of osteoid osteoma compared to freehand CBCT guidance.Materials and Methods32 RF ablations were retrospectively analyzed, 17 laser-guided and 15 procedures using the freehand technique. Subgroup selection of 18 ablations in the hip–pelvic region with a similar degree of difficulty was used for a direct comparison. Data are presented as median (ranges).ResultsComparison of all 32 ablations resulted in fluoroscopy times of 365 s (193–878 s) for freehand and 186 s (75–587 s) for laser-guided procedures (p = 0.004). Corresponding procedure times were 56 min (35–97 min) and 52 min (30–85 min) (p = 0.355).more » The subgroup showed comparable target sizes, needle path lengths, and number of scans between groups. Fluoroscopy times were lower for laser-guided procedures, 215 s (75–413 s), compared to 384 s (193–878 s) for freehand (p = 0.012). Procedure times were comparable between groups, 51 min (30–72 min) for laser guidance and 58 min (35–79 min) for freehand (p = 0.172).ConclusionAdding laser guidance to CBCT-guided osteoid osteoma RF ablations significantly reduced fluoroscopy time without increasing procedure time.Level of EvidenceLevel 4, case series.« less
The studies on gas adsorption properties of MIL-53 series MOFs materials
NASA Astrophysics Data System (ADS)
Jiao, Yuqiu; Li, Zhenyu; Ma, Yue; Zhou, Guanggang; Wang, Shuangxi; Lu, Guiwu
2017-08-01
Molecular dynamics (MD), grand canonical Monte Carlo (GCMC) and ideal adsorbed solution theory (IAST) were used to study the structures and gas adsorption properties of MIL-53(M)[M=Cr, Fe, Sc, Al] metal organic framework (MOF) materials. The results show that the volumes of those MOF materials increase significantly at high temperature. By analyzing the adsorption isotherms, we found that the temperature had a paramount effect on the gas adsorption behaviors of these MOF materials. For MIL-53(Cr), the orders of the quantities of adsorbed gases were CH4>N2>CO2>H2S, CH4>H2S>CO2>N2 and CH4>CO2>H2S>N2 at 100K, 293K and 623K, respectively. We also calculated the adsorption of several combinations of two gases by MIL-53(Cr) at 293K, the results indicate that the material had selective adsorption of CH4 over CO2, H2S and N2. Our calculations provide microscopic insights into the gas adsorption performances of these MOFs and may further guide the practice of gas separation.
Ge, Liangpeng; Cao, Chuan; Chen, Shixuan; Shao, Bin; Li, Qianyong; Li, Qingtao; Liu, Lubin; Liang, Zhiqing; Huang, Yong
2017-01-01
Pelvic organ prolapse (POP) is a serious health issue that affects many adult women. A common strategy for POP reconstruction is to use scaffold materials to reconstruct the prolapsed pelvic organ. However, the existing materials for pelvic reconstruction do not meet the clinical requirements for biocompatibility, mechanics and immunological rejection. To address these concerns, urinary bladder decellularized materials (UBDM) was selected due to their good strain-stress resistance. To enhance its biocompatibility, laminin/nidogen was used to modify the UBDM with a mussel-inspired polydopamine coating. We found that the biocompatibility and mechanical properties of laminin/nidogen-Dopamine-UBDM were significantly enhanced and that the degradation rate of laminin/nidogen-Dopamine-UBDM was markedly reduced. Moreover, the expression of CD31 in the laminin/nidogen-Dopamine-UBDM group was higher than that in the normal UBDM group. The laminin/nidogen-Dopamine-UBDM treatment mainly guided M2 type macrophages and led to an inflammatory response. These results indicate that laminin/nidogen adsorbed urinary bladder decellularized materials are promising for use in pelvic reconstruction. PMID:29312483
ERIC Educational Resources Information Center
North Dakota State Board for Vocational Education, Bismarck.
The series of programmed teaching guides for the enterprise analysis of selected enterprises was prepared by the participants in a Farm Management Education In-Service Workshop at North Dakota State University. The guide should be useful to teachers of adult Farm Managment classes in helping to teach farmers to make a thorough analysis of the…
Nuclear fuel alloys or mixtures and method of making thereof
Mariani, Robert Dominick; Porter, Douglas Lloyd
2016-04-05
Nuclear fuel alloys or mixtures and methods of making nuclear fuel mixtures are provided. Pseudo-binary actinide-M fuel mixtures form alloys and exhibit: body-centered cubic solid phases at low temperatures; high solidus temperatures; and/or minimal or no reaction or inter-diffusion with steel and other cladding materials. Methods described herein through metallurgical and thermodynamics advancements guide the selection of amounts of fuel mixture components by use of phase diagrams. Weight percentages for components of a metallic additive to an actinide fuel are selected in a solid phase region of an isothermal phase diagram taken at a temperature below an upper temperature limit for the resulting fuel mixture in reactor use. Fuel mixtures include uranium-molybdenum-tungsten, uranium-molybdenum-tantalum, molybdenum-titanium-zirconium, and uranium-molybdenum-titanium systems.
Directed assembly of carbon nanotubes on soft substrates for use as a flexible biosensor array.
Koh, Juntae; Yi, Mihye; Yang Lee, Byung; Kim, Tae Hyun; Lee, Joohyung; Jhon, Young Min; Hong, Seunghun
2008-12-17
We have developed a method to selectively assemble and align carbon nanotubes (CNTs) on soft substrates for use as flexible biosensors. In this strategy, a thin oxide layer was deposited on soft substrates via low temperature plasma enhanced chemical vapor deposition, and a linker-free assembly process was applied on the oxide surface where the assembly of carbon nanotubes was guided by methyl-terminated molecular patterns on the oxide surface. The electrical characterization of the fabricated CNT devices exhibited a typical p-type gating effect and 1/f noise behavior. The bare oxide regions near CNTs were functionalized with glutamate oxidase to fabricate selective biosensors to detect two forms of glutamate substances existing in different situations: L-glutamic acid, a neurotransmitting material, and monosodium glutamate, a food additive.
NASA Technical Reports Server (NTRS)
Tibbetts, J. G.
1980-01-01
Detailed instructions for using the near field cruise noise prediction program, a program listing, and a sample case with output are presented. The total noise for free field lossless conditions at selected observer locations is obtained by summing the contributions from up to nine acoustic sources. These noise sources, selected at the user's option, include the fan/compressor, turbine, core (combustion), jet, shock, and airframe (trailing edge and turbulent boundary layers). The effects of acoustic suppression materials such as engine inlet treatment may also be included in the noise prediction. The program is available for use on the NASA/Langley Research Center CDC computer. Comparisons of the program predictions with measured data are also given, and some possible reasons for their lack of agreement presented.
Sun, Ming-Hui; Huang, Shao-Zhuan; Chen, Li-Hua; Li, Yu; Yang, Xiao-Yu; Yuan, Zhong-Yong; Su, Bao-Lian
2016-06-13
Over the last decade, significant effort has been devoted to the applications of hierarchically structured porous materials owing to their outstanding properties such as high surface area, excellent accessibility to active sites, and enhanced mass transport and diffusion. The hierarchy of porosity, structural, morphological and component levels in these materials is key for their high performance in all kinds of applications. The introduction of hierarchical porosity into materials has led to a significant improvement in the performance of materials. Herein, recent progress in the applications of hierarchically structured porous materials from energy conversion and storage, catalysis, photocatalysis, adsorption, separation, and sensing to biomedicine is reviewed. Their potential future applications are also highlighted. We particularly dwell on the relationship between hierarchically porous structures and properties, with examples of each type of hierarchically structured porous material according to its chemical composition and physical characteristics. The present review aims to open up a new avenue to guide the readers to quickly obtain in-depth knowledge of applications of hierarchically porous materials and to have a good idea about selecting and designing suitable hierarchically porous materials for a specific application. In addition to focusing on the applications of hierarchically porous materials, this comprehensive review could stimulate researchers to synthesize new advanced hierarchically porous solids.
South Carolina Guide for Selling.
ERIC Educational Resources Information Center
Elliott, Ronald T.
This curriculum guide provides materials for a secondary course in salesmanship. It contains 6 units that cover 33 competencies. Each competency is presented in a standard format: performance objective, resources, teaching activities, evaluation, and supplementary materials, including an information sheet, exercises, and checklists. Units and…
Energy Guide: A Directory of Information Resources.
ERIC Educational Resources Information Center
Bemis, Virginia; And Others
This guide is a collection of various information sources pertaining to energy. The chapters separate references according to the type of material (instructional aids, texts, periodicals, reference materials), or the issuing organization (non-government organizations, government services, courses, programs, centers, and research projects). One…
Maldives. Package on population education for special interest groups developed.
1995-01-01
The Population Education Program of the Non-Formal Education Center has developed a package of Population Education for Special Interest Groups comprising a learning package and fieldworker's guide. The learning package is especially developed for teaching population education for out-of-school populations. Special interest groups in Maldives include newly married couples, adolescents, and working youth. Produced under the guidance of UNESCO, Bangkok, the package contains 36 different materials such as posters, charts, leaflets, booklets, stories, and illustrated booklets which may be taught in 36 to 45 periods. The materials deal with eight themes, namely, family size and family welfare, population and resources, delayed marriage and parenthood, responsible parenthood, population-related values and beliefs, women in development, AIDS/STD, and respect for old people. Accompanying the learning package is the fieldworker's guide used to teach the package. It contains individual guides for each of the 36 learning materials. The guide gives the titles of the materials, format, objectives of the materials, messages, target groups, and an overview of the content of each learning materials. The methodologies used for teaching the learning materials include role playing, group discussion, questioning, brainstorming, survey, creative writing, problem-solving and evaluation. The package will be used by fieldworkers to conduct island-based population education courses. full text
Rostami, Javad; Chen, Jingming; Tse, Peter W.
2017-01-01
Ultrasonic guided waves have been extensively applied for non-destructive testing of plate-like structures particularly pipes in past two decades. In this regard, if a structure has a simple geometry, obtained guided waves’ signals are easy to explain. However, any small degree of complexity in the geometry such as contacting with other materials may cause an extra amount of complication in the interpretation of guided wave signals. The problem deepens if defects have irregular shapes such as natural corrosion. Signal processing techniques that have been proposed for guided wave signals’ analysis are generally good for simple signals obtained in a highly controlled experimental environment. In fact, guided wave signals in a real situation such as the existence of natural corrosion in wall-covered pipes are much more complicated. Considering pipes in residential buildings that pass through concrete walls, in this paper we introduced Smooth Empirical Mode Decomposition (SEMD) to efficiently separate overlapped guided waves. As empirical mode decomposition (EMD) which is a good candidate for analyzing non-stationary signals, suffers from some shortcomings, wavelet transform was adopted in the sifting stage of EMD to improve its outcome in SEMD. However, selection of mother wavelet that suits best for our purpose plays an important role. Since in guided wave inspection, the incident waves are well known and are usually tone-burst signals, we tailored a complex tone-burst signal to be used as our mother wavelet. In the sifting stage of EMD, wavelet de-noising was applied to eliminate unwanted frequency components from each IMF. SEMD greatly enhances the performance of EMD in guided wave analysis for highly contaminated signals. In our experiment on concrete covered pipes with natural corrosion, this method not only separates the concrete wall indication clearly in time domain signal, a natural corrosion with complex geometry that was hidden and located inside the concrete section was successfully exposed. PMID:28178220
Rostami, Javad; Chen, Jingming; Tse, Peter W
2017-02-07
Ultrasonic guided waves have been extensively applied for non-destructive testing of plate-like structures particularly pipes in past two decades. In this regard, if a structure has a simple geometry, obtained guided waves' signals are easy to explain. However, any small degree of complexity in the geometry such as contacting with other materials may cause an extra amount of complication in the interpretation of guided wave signals. The problem deepens if defects have irregular shapes such as natural corrosion. Signal processing techniques that have been proposed for guided wave signals' analysis are generally good for simple signals obtained in a highly controlled experimental environment. In fact, guided wave signals in a real situation such as the existence of natural corrosion in wall-covered pipes are much more complicated. Considering pipes in residential buildings that pass through concrete walls, in this paper we introduced Smooth Empirical Mode Decomposition (SEMD) to efficiently separate overlapped guided waves. As empirical mode decomposition (EMD) which is a good candidate for analyzing non-stationary signals, suffers from some shortcomings, wavelet transform was adopted in the sifting stage of EMD to improve its outcome in SEMD. However, selection of mother wavelet that suits best for our purpose plays an important role. Since in guided wave inspection, the incident waves are well known and are usually tone-burst signals, we tailored a complex tone-burst signal to be used as our mother wavelet. In the sifting stage of EMD, wavelet de-noising was applied to eliminate unwanted frequency components from each IMF. SEMD greatly enhances the performance of EMD in guided wave analysis for highly contaminated signals. In our experiment on concrete covered pipes with natural corrosion, this method not only separates the concrete wall indication clearly in time domain signal, a natural corrosion with complex geometry that was hidden and located inside the concrete section was successfully exposed.
NASA Astrophysics Data System (ADS)
Lynch, Christopher
2009-10-01
The rapid development of the field of Smart Materials, Adaptive Structures, and Materials Systems led the Aerospace Division ASMS TC to launch the new annual SMASIS conference in 2008. The conference focuses on the multi-disciplinary challenges of developing new multifunctional materials and implementing them in advanced systems. The research spans length scales from nano-structured materials to civil, air, and space structures. The first conference consisted of six symposia, each focusing on a different research area. This special issue of Smart Materials and Structures summarizes some of the top research presented at the 2008 SMASIS conference in the materials-focused symposia. These symposia focused on the behavior and mechanics of active materials, on multifunctional materials, and on bio-inspired materials. The behavior and mechanics of active materials is an approach that combines observed material behavior with mechanism-based models that not only give insight into the observed behavior, but guide the development of new materials. This approach has been applied to shape memory metals and polymers, ferroelectrics, ferromagnetics, and recently to multiferroic materials, and has led to considerable improvements in our understanding of multi-field phenomena. Multifunctional materials are the next generation of active materials. These materials include structural, sensing, and actuation components integrated into a material system. A natural extension of multifunctional materials is a new class of bio-inspired materials. Bio-inspired materials range from detailed bio-mimicry of sensing and self healing materials to nano and microstructures that take advantage of features observed in biological systems. The Editors would like to express their sincere thanks to all of the authors for their contributions to this special issue on 'Adaptive and Active Materials' for Smart Materials and Structures. We convey our gratitude to all of the reviewers for their time and dedication. We thank IOP Publishing for their support and encouragement of this special issue and the staff for their special attention and timely response.
Marketing and Society. Study Guide.
ERIC Educational Resources Information Center
Welsh, Robert S.; Blake, Rowland S.
This self-instructional study guide is part of the materials for a college-level programmed course entitled "Marketing and Society." The study guide is intended for use by students in conjunction with a related textbook, a workbook, a review guide, and a series of instructional tape casettes. The study guide contains a brief introductory section…
Sociology: A Student's Guide to Reference Sources.
ERIC Educational Resources Information Center
Waiser, Joni, Comp.
This guide lists selective reference sources which are useful for research in sociology. The guide is arranged by document type: guides, dictionaries, encyclopedias, directories and biographical sources, statistics, book reviews, theses and dissertations, general social science bibliographies, sociology bibliographies, special subject…
ERIC Educational Resources Information Center
Irving Independent School District, TX.
This guide is intended to be used for instruction in communication skills from the seventh grade through the twelfth. Each section of the guide is identified by grade level and includes instructional objectives, suggestions for introducing and motivating the unit, required material, suggested activities, audiovisual aids, resource materials, and…
Systematic Sensor Selection Strategy (S4) User Guide
NASA Technical Reports Server (NTRS)
Sowers, T. Shane
2012-01-01
This paper describes a User Guide for the Systematic Sensor Selection Strategy (S4). S4 was developed to optimally select a sensor suite from a larger pool of candidate sensors based on their performance in a diagnostic system. For aerospace systems, selecting the proper sensors is important for ensuring adequate measurement coverage to satisfy operational, maintenance, performance, and system diagnostic criteria. S4 optimizes the selection of sensors based on the system fault diagnostic approach while taking conflicting objectives such as cost, weight and reliability into consideration. S4 can be described as a general architecture structured to accommodate application-specific components and requirements. It performs combinational optimization with a user defined merit or cost function to identify optimum or near-optimum sensor suite solutions. The S4 User Guide describes the sensor selection procedure and presents an example problem using an open source turbofan engine simulation to demonstrate its application.
Delamination Defect Detection Using Ultrasonic Guided Waves in Advanced Hybrid Structural Elements
NASA Astrophysics Data System (ADS)
Yan, Fei; Qi, Kevin ``Xue''; Rose, Joseph L.; Weiland, Hasso
2010-02-01
Nondestructive testing for multilayered structures is challenging because of increased numbers of layers and plate thicknesses. In this paper, ultrasonic guided waves are applied to detect delamination defects inside a 23-layer Alcoa Advanced Hybrid Structural plate. A semi-analytical finite element (SAFE) method generates dispersion curves and wave structures in order to select appropriate wave structures to detect certain defects. One guided wave mode and frequency is chosen to achieve large in-plane displacements at regions of interest. The interactions of the selected mode with defects are simulated using finite element models. Experiments are conducted and compared with bulk wave measurements. It is shown that guided waves can detect deeply embedded damages inside thick multilayer fiber-metal laminates with suitable mode and frequency selection.
ERIC Educational Resources Information Center
Austin, Carol E.; And Others
The social studies unit includes a teaching guide, teacher background material, student text, study guide, and composite pretest/posttest. Subject matter focuses on archaeological methods, history of man in America, and the Hopi Indians in the past and present. The unit is part of the Anthropology Curriculum Project and is designed to be used in…
High accuracy electronic material level sensor
McEwan, T.E.
1997-03-11
The High Accuracy Electronic Material Level Sensor (electronic dipstick) is a sensor based on time domain reflectometry (TDR) of very short electrical pulses. Pulses are propagated along a transmission line or guide wire that is partially immersed in the material being measured; a launcher plate is positioned at the beginning of the guide wire. Reflected pulses are produced at the material interface due to the change in dielectric constant. The time difference of the reflections at the launcher plate and at the material interface are used to determine the material level. Improved performance is obtained by the incorporation of: (1) a high accuracy time base that is referenced to a quartz crystal, (2) an ultrawideband directional sampler to allow operation without an interconnect cable between the electronics module and the guide wire, (3) constant fraction discriminators (CFDs) that allow accurate measurements regardless of material dielectric constants, and reduce or eliminate errors induced by triple-transit or ``ghost`` reflections on the interconnect cable. These improvements make the dipstick accurate to better than 0.1%. 4 figs.
High accuracy electronic material level sensor
McEwan, Thomas E.
1997-01-01
The High Accuracy Electronic Material Level Sensor (electronic dipstick) is a sensor based on time domain reflectometry (TDR) of very short electrical pulses. Pulses are propagated along a transmission line or guide wire that is partially immersed in the material being measured; a launcher plate is positioned at the beginning of the guide wire. Reflected pulses are produced at the material interface due to the change in dielectric constant. The time difference of the reflections at the launcher plate and at the material interface are used to determine the material level. Improved performance is obtained by the incorporation of: 1) a high accuracy time base that is referenced to a quartz crystal, 2) an ultrawideband directional sampler to allow operation without an interconnect cable between the electronics module and the guide wire, 3) constant fraction discriminators (CFDs) that allow accurate measurements regardless of material dielectric constants, and reduce or eliminate errors induced by triple-transit or "ghost" reflections on the interconnect cable. These improvements make the dipstick accurate to better than 0.1%.
ERIC Educational Resources Information Center
Regional Resource Center Program, 2014
2014-01-01
One component of the recently required State Systemic Improvement Plan (SSIP) for State Departments of Education calls for the selection and implementation of evidence-based practices (EBPs). This report provides six steps to guide the process of selecting evidence based practices (EBP): (1) Begin with the End in Mind--Determine Targeted Outcomes;…
General Electronics Technician: Basic Electronics.
ERIC Educational Resources Information Center
Hilley, Robert
These instructional materials include a teacher's guide designed to assist instructors in organizing and presenting an introductory course in general electronics and a student guide. The materials are based on the curriculum-alignment concept of first stating the objectives, developing instructional strategies for teaching those objectives, and…
75 FR 79049 - Final Regulatory Guide: Issuance, Availability
Federal Register 2010, 2011, 2012, 2013, 2014
2010-12-17
... (RG) 5.80, ``Pressure-Sensitive and Tamper-Indicating Device Seals for Material Control and Accounting... and licenses. Regulatory Guide 5.80, ``Pressure-Sensitive and Tamper-Indicating Device Seals for... and Use of Pressure-Sensitive Seals on Containers for Onsite Storage of Special Nuclear Material...
A Guide to Southern Pine Seed Sources
Clark W. Lantz; John F. Kraus
1987-01-01
The selection of an appropriate seed source is critical for successful southern pine plantations. Guides for selection of seed sources are presented for loblolly, slash, longleaf, Virginia, shortleaf, and sand pines. Separate recommendations are given for areas where fusiform-rust hazard is high.
Performance-Based Assessment Resource Guide.
ERIC Educational Resources Information Center
Gilbert, Judith C.; Burger, Patricia
This resource guide reviews a variety of performance-based student assessment strategies, and provides examples of, and references for, the strategies. Strategies include anecdotal records, interviews, peer report and group evaluations, and portfolios. Materials in the guide include: (1) a resource guide update form for teachers; (2) department…
ERIC Educational Resources Information Center
National School Resource Network, Washington, DC.
This program resource guide is a compilation of all programs and projects on preventing school violence and vandalism referenced in National School Resource Network (NSRN) materials. The programs cited are described in NSRN trainers' guides, participant guides, technical assistance bulletins, an "Aha" listing, and a compendium. The index is…
Review of electronic transport models for thermoelectric materials
NASA Astrophysics Data System (ADS)
Bulusu, A.; Walker, D. G.
2008-07-01
Thermoelectric devices have gained importance in recent years as viable solutions for applications such as spot cooling of electronic components, remote power generation in space stations and satellites etc. These solid-state devices have long been known for their reliability rather than their efficiency; they contain no moving parts, and their performance relies primarily on material selection, which has not generated many excellent candidates. Research in recent years has been focused on developing both thermoelectric structures and materials that have high efficiency. In general, thermoelectric research is two-pronged with (1) experiments focused on finding new materials and structures with enhanced thermoelectric performance and (2) analytical models that predict thermoelectric behavior to enable better design and optimization of materials and structures. While numerous reviews have discussed the importance of and dependence on materials for thermoelectric performance, an overview of how to predict the performance of various materials and structures based on fundamental quantities is lacking. In this paper we present a review of the theoretical models that were developed since thermoelectricity was first observed in 1821 by Seebeck and how these models have guided experimental material search for improved thermoelectric devices. A new quantum model is also presented, which provides opportunities for the optimization of nanoscale materials to enhance thermoelectric performance.
Serra, Yolanda A; Colón-López, Vivian; Savas, Lara S; Vernon, Sally W; Fernández-Espada, Natalie; Vélez, Camille; Ayala, Alelí; Fernández, María E
2017-01-01
Colorectal cancer (CRC) is a leading cause of cancer-related mortality in Puerto Rico (PR). Although largely preventable through screening and treatment of precancerous polyps, CRC screening rates in PR remain low while CRC incidence and mortality continue to increase. We used intervention mapping (IM), a systematic framework using theory and evidence to plan a health promotion intervention to increase colorectal cancer screening (CRCS) among Puerto Rican adults 50 years and older who are patients of Federally Qualified Health Centers (FQHCs) in PR. To inform the development of a logic model of the problem during the needs assessment phase, we determined the CRC incidence and mortality rates in PR using recent data from the PR Cancer Registry, conducted a literature review to better understand behavioral and environmental factors influencing CRC among Hispanics in general and in Puerto Ricans, and collected new data. We conducted seven focus groups to identify community needs and resources, specific sub-behaviors related to CRCS (performance objectives) and the determinants of CRCS. We then developed matrices of change objectives that would guide the content, behavioral change method selection, and the practical applications that would be included in the program. We selected two overarching methods: entertainment education and behavioral journalism and developed practical applications, materials, and messages containing several other methods including modeling, persuasion, information, and tailoring. We developed and pretested a Tailored Interactive Multimedia Intervention, newsletter, an action plan, and supplemental print materials for patients. We also developed a patient mediated provider prompt to increase provider recommendation and improve patient provider communication. The use of IM for systematic planning produced a detailed coherent plan for the CRCS educational intervention. Guided by IM processes, steps, and tasks, we used community level information, existing literature, theory, and new data to develop health education materials that were well received by the priority population and will likely increase CRCS among FQHC patients in PR.
Podiatric medical resources on the internet: a fifth update.
Fikar, Charles R
2006-01-01
An updated selection of high-quality Internet resources of potential use to the podiatric medical practitioner, educator, resident, and student is presented. Internet search tools and general Internet reference sources are briefly covered, including methods of locating material residing on the "invisible" Web. General medical and podiatric medical resources are emphasized. These Web sites were judged on the basis of their potential to enhance the practice of podiatric medicine in addition to their contribution to education. Podiatric medical students, educators, residents, and practitioners who require a quick reference guide to the Internet may find this article useful.
Automated Guided-Wave Scanning Developed to Characterize Materials and Detect Defects
NASA Technical Reports Server (NTRS)
Martin, Richard E.; Gyekenyeski, Andrew L.; Roth, Don J.
2004-01-01
The Nondestructive Evaluation (NDE) Group of the Optical Instrumentation Technology Branch at the NASA Glenn Research Center has developed a scanning system that uses guided waves to characterize materials and detect defects. The technique uses two ultrasonic transducers to interrogate the condition of a material. The sending transducer introduces an ultrasonic pulse at a point on the surface of the specimen, and the receiving transducer detects the signal after it has passed through the material. The aim of the method is to correlate certain parameters in both the time and frequency domains of the detected waveform to characteristics of the material between the two transducers. The scanning system is shown. The waveform parameters of interest include the attenuation due to internal damping, waveform shape parameters, and frequency shifts due to material changes. For the most part, guided waves are used to gauge the damage state and defect growth of materials subjected to various mechanical or environmental loads. The technique has been applied to polymer matrix composites, ceramic matrix composites, and metal matrix composites as well as metallic alloys. Historically, guided wave analysis has been a point-by-point, manual technique with waveforms collected at discrete locations and postprocessed. Data collection and analysis of this type limits the amount of detail that can be obtained. Also, the manual movement of the sensors is prone to user error and is time consuming. The development of an automated guided-wave scanning system has allowed the method to be applied to a wide variety of materials in a consistent, repeatable manner. Experimental studies have been conducted to determine the repeatability of the system as well as compare the results obtained using more traditional NDE methods. The following screen capture shows guided-wave scan results for a ceramic matrix composite plate, including images for each of nine calculated parameters. The system can display up to 18 different wave parameters. Multiple scans of the test specimen demonstrated excellent repeatability in the measurement of all the guided-wave parameters, far exceeding the traditional point-by-point technique. In addition, the scan was able to detect a subsurface defect that was confirmed using flash thermography This technology is being further refined to provide a more robust and efficient software environment. Future hardware upgrades will allow for multiple receiving transducers and the ability to scan more complex surfaces. This work supports composite materials development and testing under the Ultra-Efficient Engine Technology (UEET) Project, but it also will be applied to other material systems under development for a wide range of applications.
Facultative Lagoons. Instructor's Guide. Biological Treatment Process Control.
ERIC Educational Resources Information Center
Andersen, Lorri
This instructor's guide contains materials needed to teach a two-lesson unit on the structure and components of facultative lagoons, the biological theory of their operation, and factors affecting their operation. Control testing recommendations, maintenance guidelines, and troubleshooting hints are also provided. These materials include: (1) an…
Exploring Technology Education: Exploring Communication Technology.
ERIC Educational Resources Information Center
Joerschke, John D.
These instructional materials include a teacher's guide designed to assist instructors in organizing and presenting a unit of study on communication technology and a student guide. The materials are based on the curriculum-alignment concept of first stating the objectives, developing instructional strategies for teaching those objectives, and then…
Generalizable Communications Skills Resource Directory.
ERIC Educational Resources Information Center
Greenan, James P.; And Others
This directory is designed to serve as a resource guide for vocational educators who need additional instructional material in the teaching of communications or vocationally oriented communications in their classes. The user guide explains the organization and use of the manual. The Communications Resource Materials section is divided into topic…
How Dollars Make Cents. Teacher's Guide [and] Student Materials.
ERIC Educational Resources Information Center
Auman, L. Charles
This unit provides secondary school students with methods for comparison shopping of savings institutions. It contains both student materials and teacher's guide and is designed for individualized instruction. Approximate time for the unit is six hours. Activities include analyzing cartoons, defining the terms "savings" and…
Exploring Technology Education: Introduction to Technology Education.
ERIC Educational Resources Information Center
Joerschke, John D.
These instructional materials include a teacher's guide designed to assist instructors in organizing and presenting an introductory course in technology education and a student guide. The materials are based on the curriculum-alignment concept of first stating the objectives, developing instructional strategies for teaching those objectives, and…
WOW! The Wonders of Wetlands: An Educator's Guide. [Revised.
ERIC Educational Resources Information Center
Slattery, Britt Eckhardt; And Others
This educator's guide contains background material and stimulating activities pertaining to wetlands that classroom teachers, refuge managers, nature center interpreters, park service educators, and others will find useful. The first part, background material for teachers preparing wetland study units, is divided into six chapters: "Wetlands and…
General Electronics Technician: Semiconductor Devices and Circuits.
ERIC Educational Resources Information Center
Hilley, Robert
These instructional materials include a teacher's guide designed to assist instructors in organizing and presenting an introductory course in general electronics focusing on semiconductor devices and circuits and a student guide. The materials are based on the curriculum-alignment concept of first stating the objectives, developing instructional…
Exploring Technology Education: Exploring Manufacturing Technology.
ERIC Educational Resources Information Center
Joerschke, John D.
These instructional materials include a teacher's guide designed to assist instructors in organizing and presenting a unit of study on manufacturing technology and a student guide. The materials are based on the curriculum-alignment concept of first stating the objectives, developing instructional strategies for teaching those objectives, and then…
Fiscal Officer Training Workshop, 1997. Participant's Guide.
ERIC Educational Resources Information Center
Department of Education, Washington, DC.
Extensive workshop materials are presented in this 1997 training guide for fiscal officers, business officers, bursars, loan managers, and others who have responsibility for Title IV college student financial aid programs. Workbook type material is provided for nine workshop sessions that cover the following topics: (1) Institutional…
Creation of the selection list for the Experiment Scheduling Program (ESP)
NASA Technical Reports Server (NTRS)
Deuermeyer, B. L.; Shannon, R. E.; Underbrink, A. J., Jr.
1986-01-01
The efforts to develop a procedure to construct selection groups to augment the Experiment Scheduling Program (ESP) are summarized. Included is a User's Guide and a sample scenario to guide in the use of the software system that implements the developed procedures.
Comprehensive Guide for Middle School Programs. Instructor's Guide.
ERIC Educational Resources Information Center
Hansen, Joan
This instructor's guide contains materials for use in teaching a middle school exploratory home economics course. Addressed in the individual units of the guide are the following topics: nutrition education and food management, parenting education, resource management, clothing management, and personal management. Each section contains a unit…
Managerial Accounting. Study Guide.
ERIC Educational Resources Information Center
Plachta, Leonard E.
This self-instructional study guide is part of the materials for a college-level programmed course in managerial accounting. The study guide is intended for use by students in conjuction with a separate textbook, Horngren's "Accounting for Management Control: An Introduction," and a workbook, Curry's "Student Guide to Accounting for Management…
Breaking the glass ceiling: hollow OmniGuide fibers
NASA Astrophysics Data System (ADS)
Johnson, Steven G.; Ibanescu, Mihai; Skorobogatiy, Maksim A.; Weisberg, Ori; Engeness, Torkel D.; Soljacic, Marin; Jacobs, Steven A.; Joannopoulos, John D.; Fink, Yoel
2002-04-01
We argue that OmniGuide fibers, which guide light within a hollow core by concentric multilayer films having the property of omnidirectional reflection, have the potential to lift several physical limitations of silica fibers. We show how the strong confinement in OmniGuide fibers greatly suppresses the properties of the cladding materials: even if highly lossy and nonlinear materials are employed, both the intrinsic losses and nonlinearities of silica fibers can be surpassed by orders of magnitude. This feat, impossible to duplicate in an index-guided fiber with existing materials, would open up new regimes for long-distance propagation and dense wavelength-division multiplexing (DWDM). The OmniGuide-fiber modes bear a strong analogy to those of hollow metallic waveguides; from this analogy, we are able to derive several general scaling laws with core radius. Moreover, there is strong loss discrimination between guided modes, depending upon their degree of confinement in the hollow core: this allows large, ostensibly multi-mode cores to be used, with the lowest-loss TE01 mode propagating in an effectively single-mode fashion. Finally, because this TE01 mode is a cylindrically symmetrical ('azimuthally' polarized) singlet state, it is immune to polarization-mode dispersion (PMD), unlike the doubly-degenerate linearly-polarized modes in silica fibers that are vulnerable to birefringence.
Martin-Biggers, Jennifer; Spaccarotella, Kim; Delaney, Colleen; Koenings, Mallory; Alleman, Gayle; Hongu, Nobuko; Worobey, John; Byrd-Bredbenner, Carol
2015-01-01
Home environment is key to the development of obesity-preventing behaviors during childhood, yet few resources help preschool parents address factors at home associated with obesity risk. This paper describes creation of materials for an in-home intervention (HomeStyles) with this population. An advisory group of stakeholders and target audience members determined salient factors affecting childhood obesity to address in-home and developed program materials. The Social Cognitive Theory, Faith’s Core Behavior Change Strategies to Treat Childhood Obesity, Adult Learning Theory and motivational interviewing techniques guided development of 12 guides targeting strategies parents can use to shape the home environment. Interviews were conducted to determine effectiveness of the guides. Cognitive testing of guide design (n = 251) and content (n = 261) occurred in English and Spanish in New Jersey and Arizona with parents and home visitation staff who would present the guides. Interviews investigated perceptions of content usefulness and parent comprehension. Findings were also examined in light of theoretical underpinnings. Both home visitation staff and parents felt the guides were very readable and useful. Parents appreciated use of motivational interviewing techniques and Adult Learning Theory. Current research is testing these guides through an in-home, randomized control trial. PMID:26266419
Serra, F; Janeiro, A; Calderone, G; Rojas, J M Moreno; Rhodes, C; Gonthier, L A; Martin, F; Lees, M; Mosandl, A; Sewenig, S; Hener, U; Henriques, B; Ramalho, L; Reniero, F; Teixeira, A J; Guillou, C
2007-03-01
This study was directed towards investigating suitable compounds to be used as stable isotope reference materials for gas chromatography combustion isotope ratio mass spectrometry (GC-C-IRMS) calibration. Several compounds were selected from those used in the 'Grob-test' mixture. Oxygen- and nitrogen-containing substances were added to these compounds to allow the mixture to be used as a possible multi-isotopic calibration tool for 2H/1H, 13C/12C, 15N/14N and 18O/16O ratio determinations. In this paper we present the results of delta13C measurements performed by the consortium of the five laboratories taking part in this inter-calibration exercise. All the compounds were individually assessed for homogeneity, short-term stability and long-term stability by means of EA-IRMS, as required by the bureau communitaire de reference (BCR) Guide for Production of Certified Reference Materials. The results were compared then with the GC-C-IRMS measurements using both polar and non-polar columns, and the final mixture of selected compounds underwent a further certification exercise assessing limits of accuracy and reproducibility under specified GC-C-IRMS conditions. Copyright 2007 John Wiley & Sons, Ltd.
Battery Data MI Importer Template Quick Start Guide
NASA Technical Reports Server (NTRS)
Levinson, Laurie H.
2017-01-01
In order to ensure the persistent availability and reliability of test data generated over the course of the project, the M-SHELLS Project has decided to store acquired test data, as well as associated pedigree information, in the Granta Materials Intelligence (MI) database. To facilitate that effort, an importer template and associated graphical user interface (GUI) software have been developed, with this guide providing the operating instructions for their use. The template and automation software GUI are contained in the BatteryDataImporter.xlsm Excel workbook, and are to be used to import M-SHELLS summary, or pedigree, data and the associated raw test data results into an importer template-based file, formatted in such a way as to be ready for immediate upload to the Test Data: Battery Performance table of the Granta MI database. The provided GUI enables the user to select the appropriate summary data file(s), with each file containing the required information to identify any associated raw test data file(s) to be processed. In addition to describing the setup and operation of the importer template and GUI software, this guide also provides instructions for uploading processed data to the database and for viewing the data following upload.
Evaluation of an optimized shade guide made from porcelain powder mixtures.
Wang, Peng; Wei, Jiaqiang; Li, Qing; Wang, Yining
2014-12-01
Color errors associated with current shade guides and problems with color selection and duplication are still challenging for restorative dentists. The purpose of this study was to evaluate an optimized shade guide for visual shade duplication. Color distributions (L*, a*, and b*) of the maxillary left central incisors of 236 participants, whose ages ranged from 20 to 60, were measured with a spectrophotometer. Based on this color map, an optimized shade guide was designed with 14 shade tabs evenly distributed within the given color range of the natural incisors. The shade tabs were fabricated with porcelain powder mixtures and conventional laboratory procedures. A comparison of shade duplication by using the optimized and Vitapan Classical shade guides was conducted. Thirty Chinese participants were involved, and the colors of the left maxillary incisors were selected by using 2 shade guides. Metal ceramic crowns were fabricated according to the results of the shade selection. The colors of the shade tabs, natural teeth, and the ceramic crowns were measured with a spectrophotometer. The color differences among the natural teeth, the shade tabs, and the corresponding metal ceramic crowns were calculated and analyzed (α=.017). Significant differences were found in both phases of shade determination and shade duplication (P<.017). The total number of color errors with the optimized shade guide was 3.5, which was significantly less than that of Vitapan, 5.1 (P<.001). The optimized shade guide system improved performance not only in the color selection phase but also in the color of the fabricated crowns. Copyright © 2014 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.
NASA Technical Reports Server (NTRS)
McElroy, Mark W.
2017-01-01
This document serves as a user guide for the AF-Shell 1.0 software, an efficient tool for progressive damage simulation in composite laminates. This guide contains minimal technical material and is meant solely as a guide for a new user to apply AF-Shell 1.0 to laminate damage simulation problems.
Reviewing a Reading Program: Professional Development Module. Facilitator's Guide
ERIC Educational Resources Information Center
Kosanovich, Marcia; Jordan, Georgia; Arndt, Elissa; VanSciver, Mary; Wahl, Michelle; Rissman, Lila
2008-01-01
This "Facilitator's Guide" has been prepared for presenters of the Reviewing a Reading Program professional development training. It is one of three pieces comprising a suite of materials on reviewing reading programs: this "Guide", the "Reviewing a Reading Program Participant's Guide" and the "Reviewing a Reading Program" Professional Development…
The Chesapeake Bay through Ebony Eyes. Curriculum Guide.
ERIC Educational Resources Information Center
Quillin, Holli S.
This curriculum guide contains eight lessons which complement "The Chesapeake Bay through Ebony Eyes," a book that recounts the contributions blacks have made to Maryland's Chesapeake Bay's maritime and seafood industries. The guide is for use as supplemental material or as cultural enrichment. Lesson plans in the guide are: (1)…
The Vietnam Era: A Guide to Teaching Resources.
ERIC Educational Resources Information Center
Indochina Curriculum Group, Cambridge, MA.
This annotated resource guide contains information and learning activities on the Vietnam War for use by high school history teachers. Annotations of primary source materials, resource materials, textbooks, general interest books, and film and slide shows from several competing points of view are included. The developers believe that students who…
Resource Materials for Consumer Education, A Revision.
ERIC Educational Resources Information Center
Foxwell, V. Susan
This guide to resources in consumer education for grade levels K-12 is a revision and updating of a previous guide, ED 070 719. Resources are described in the following categories: multimedia; films; filmstrips; slides, pictures, and transparencies; booklets and study materials; books; records and tapes; teaching units, guidelines, and…
Food Processing Curriculum Material and Resource Guide.
ERIC Educational Resources Information Center
Louisiana State Dept. of Education, Baton Rouge.
Intended for secondary vocational agriculture teachers, this curriculum guide contains a course outline and a resource manual for a seven-unit food processing course on meats. Within the course outline, units are divided into separate lessons. Materials provided for each lesson include preparation for instruction (student objectives, review of…
Food Marketing: Cashier-Checker. Teacher's Guide. Competency Based Curriculum.
ERIC Educational Resources Information Center
Froelich, Larry; And Others
This teacher's guide is designed to accompany the Competency Based Cashier-Checker Curriculum student materials--see note. Contents include a listing of reference materials, tool and equipment lists, copy of the table of contents for student competency sheets, teacher's suggestions, and answer keys for information sheets and exercises.…
ERIC Educational Resources Information Center
Kukuk, Marvin; Mathis, Joe
This curriculum guide is part of a series designed to teach students about diesel engines. The materials in this power trains guide apply to both on-road and off-road vehicles and include information about chain and belt drives used in tractors and combines. These instructional materials, containing nine units, are written in terms of student…
Solar Energy Applications for Agriculture. A Curriculum Guide.
ERIC Educational Resources Information Center
Nebraska Univ., Lincoln. Dept. of Agricultural Education.
This curriculum guide contains five units for a course in solar energy applications for vocational agriculture. Each unit is organized in a format containing some or all of the following materials: unit objective, specific objectives, suggested instructor and student activities, list of instructional materials, assignment sheets, answers to…
Coastal Awareness: A Resource Guide for Teachers in Elementary Science.
ERIC Educational Resources Information Center
Rasmussen, Frederick A.
Intended to encourage elementary teachers to explore coastal ecology with their students, this guide presents background material, activity suggestions, and recommended resource materials that could be used in designing a week-long unit on Coastal Awareness. Discussed is how various physical processes such as waves, tides, and currents affect…
Training Manual: Vocational Skills. Vocational Strategies for Special Needs Students.
ERIC Educational Resources Information Center
Blanc, Doreen V.
Instructional materials included in this guide were developed to provide vocational services to mildly handicapped special needs students mainstreamed into regular schools. Material represents strategies or directions in specific areas of occupational education, rather than specific curriculum guides; it is addressed to both the teacher and the…
Educator's Guide: Food Experiences for Young Children.
ERIC Educational Resources Information Center
Randell, Jill; And Others
The purpose of the materials and experiences presented in this guide is to help preschool aged children develop healthful food habits through food and nutrition activities. Many of the materials may be familiar, but some original suggestions have been developed in response to contemporary nutritional issues, particularly television advertising and…
Educators Resource Guide to WP Material for the Classroom.
ERIC Educational Resources Information Center
Potts, Peggy J.
This guide lists materials to be used in the classroom instruction of word processing technology. A listing of international, national, and regional word processing associations is followed by an annotated enumeration of resources under nine headings: (1) booklets and brochures, (2) books, (3) films, (4) handbooks, (5) machine transcription…
Anthropology: A Student's Guide to Reference Sources.
ERIC Educational Resources Information Center
Slavin, Suzy M., Comp.
The guide identifies approximately 100 anthropology source materials in the reference department of McLennan Library at McGill University. It was designd to help students doing anthropological research and to illustrate the variety of materials on social and cultural anthropology in the McLennan Library. Physical anthropolgy, linguistics, and…
ERIC Educational Resources Information Center
Manitoba Dept. of Education, Winnipeg.
Manitoba's curriculum guide for German 100, 200, and 300 is designed to (1) make teachers of these courses aware of the official policy concerning the nature, goals, and objectives of the courses and approved teaching materials, and (2) provide instructional guidelines. The guide provides information about three sets of teaching materials from…
A Guide to Using Popular Culture to Teach Composition.
ERIC Educational Resources Information Center
Smelstor, Marjorie, Ed.
The purpose of this guide is to offer possible answers to questions concerning popular culture that teachers might have and to offer suggestions on utilizing popular culture materials that are available. Lesson plans are presented using materials from advertising, newspapers, comics, film, television, popular music, radio, popular literature,…
School Health Program. Interim Guide. Grade 9.
ERIC Educational Resources Information Center
Northwest Territories Dept. of Education, Yellowknife.
This interim guide, a component of the Northwest Territories (Canada) School Health Program, includes instructional strategies, lesson plans, reproducibles, and teacher background materials for ninth grade classes. The material is organized around the three curriculum units: (1) the mental and emotional well-being unit which has three lessons on…
Administration of Child Care Programs: Business Management. Instructor's Guide.
ERIC Educational Resources Information Center
Texas Tech Univ., Lubbock. Home Economics Curriculum Center.
Designed for use by postsecondary child development instructors, this guide is organized into four units that expose students to the general competencies and business management aspects of child care program administration. Introductory materials discuss the use of the materials and provide guidelines for evaluating students. The four units cover…
Agricultural Construction Volume I. Arc Welding Project Construction. Instructor's Guide.
ERIC Educational Resources Information Center
Brzozowski, Dick; Admire, Myron
This guide contains instructor's materials for teaching a secondary agricultural construction course consisting of instructional units on arc welding (8 lessons) and project construction (14 lessons). The materials for each unit include student objectives, a list of competencies from which the objectives were derived, suggestions for motivating…
ERIC Educational Resources Information Center
Bolton, Earle; Gueringer, June
Enclosed is a number of booklets containing lesson outlines of materials in mathematics and science. These outlines are designed to give teachers and students an idea of what to expect when a telecast is schedules for their classes. The tele-lessons are given for the purpose of providing enrichment activities and giving coherence to the entire…
Molecular origins of scintillation in organic scintillators (Conference Presentation)
NASA Astrophysics Data System (ADS)
Feng, Patrick; Mengesha, Wondwosen; Myllenbeck, Nicholas
2016-09-01
Organic-based scintillators are indispensable materials for radiation detection owing to their high sensitivity to fast neutrons, low cost, and tailorable properties. There has been a recent resurgence of interest in organic scintillators due to exciting discoveries related to neutron discrimination and gamma-ray spectroscopy, which represent capabilities previously thought not possible in these materials. I will discuss our development of crystalline and polymer-based scintillators for these applications. Structure-property relationships related to intermolecular interactions and host-guest electronic exchange will be discussed in the context of energy-transfer pathways relevant to scintillation. An emphasis will be placed on the rational design of these materials, as guided by first principles and DFT calculations. Two related topics will be discussed: 1) Incorporation of organometallic triplet-harvesting additives to plastic scintillator matrices to confer a 'two-state' (singlet and triplet) luminescence signature to different types of ionizing radiation. This approach relies upon energetic and spatial overlap between the donor and acceptor excited states for efficient electronic exchange. Key considerations also include synthetic modification of the luminescence spectra and kinetics, as well as the addition of secondary additives to increase the recombination efficiency. 2) Design of organotin-containing plastic scintillators as a route towards gamma-ray spectroscopy. Organometallic compounds were selected on the basis of distance-dependent quenching relationships, phase compatibility with the polymer matrix, and the gamma-ray cross sections. This approach is guided by molecular modeling and radiation transport modeling to achieve the highest possible detection sensitivity luminescence intensity.
Three-dimensional Printing of Silver Microarchitectures Using Newtonian Nanoparticle Inks.
Lee, Sanghyeon; Kim, Jung Hyun; Wajahat, Muhammad; Jeong, Hwakyung; Chang, Won Suk; Cho, Sung Ho; Kim, Ji Tae; Seol, Seung Kwon
2017-06-07
Although three-dimensional (3D) printing has recently emerged as a technology to potentially bring about the next industrial revolution, the limited selection of usable materials restricts its use to simple prototyping. In particular, metallic 3D printing with submicrometer spatial resolution is essential for the realization of 3D-printed electronics. Herein, a meniscus-guided 3D printing method that exploits a low-viscosity (∼7 mPa·s) silver nanoparticle (AgNP) ink meniscus with Newtonian fluid characteristics (which is compatible with conventional inkjet printers) to fabricate 3D silver microarchitectures is reported. Poly(acrylic acid)-capped AgNP ink that exhibits a continuous ink flow through a confined nozzle without aggregation is designed in this study. Guiding the ink meniscus with controlled direction and speed enables both vertical pulling and layer-by-layer processing, resulting in the creation of 3D microobjects with designed shapes other than those for simple wiring. Various highly conductive (>10 4 S·cm -1 ) 3D metallic patterns are demonstrated for applications in electronic devices. This research is expected to widen the range of materials that can be employed in 3D printing technology, with the aim of moving 3D printing beyond prototyping and into real manufacturing platforms for future electronics.
Liu, Jui-Nung; Schulmerich, Matthew V.; Bhargava, Rohit; Cunningham, Brian T.
2011-01-01
An alternative to the well-established Fourier transform infrared (FT-IR) spectrometry, termed discrete frequency infrared (DFIR) spectrometry, has recently been proposed. This approach uses narrowband mid-infrared reflectance filters based on guided-mode resonance (GMR) in waveguide gratings, but filters designed and fabricated have not attained the spectral selectivity (≤ 32 cm−1) commonly employed for measurements of condensed matter using FT-IR spectroscopy. With the incorporation of dispersion and optical absorption of materials, we present here optimal design of double-layer surface-relief silicon nitride-based GMR filters in the mid-IR for various narrow bandwidths below 32 cm−1. Both shift of the filter resonance wavelengths arising from the dispersion effect and reduction of peak reflection efficiency and electric field enhancement due to the absorption effect show that the optical characteristics of materials must be taken into consideration rigorously for accurate design of narrowband GMR filters. By incorporating considerations for background reflections, the optimally designed GMR filters can have bandwidth narrower than the designed filter by the antireflection equivalence method based on the same index modulation magnitude, without sacrificing low sideband reflections near resonance. The reported work will enable use of GMR filters-based instrumentation for common measurements of condensed matter, including tissues and polymer samples. PMID:22109445
Computer Applications in Instruction: A Teacher's Guide to Selection and Use.
ERIC Educational Resources Information Center
Edwards, Judith B.; And Others
Intended for upper elementary and secondary teachers in all subject areas, this guide provides practical advice on determining the appropriate application of computer technology and on the selection of specific, subject-related computer-based instruction units. Under the heading of hardware and software, topics discussed include communicating with…
Public Administration: A Bibliography of Selected Reference Sources.
ERIC Educational Resources Information Center
Brustman, Mary Jane
This guide presents an annotated list of selected reference sources in public administration. All of the sources listed are found at the Graduate Library for Public Affairs and Policy (GLPP) located at the State University of New York, Albany. Detailed, exhaustive guides in literature, research, indexes, abstracts, statistical sources, government…
A Planning Guide for Instructional Networks, Part I.
ERIC Educational Resources Information Center
Daly, Kevin F.
1994-01-01
Discusses three phases in implementing a master plan for a school-based local area network (LAN): (1) network software selection; (2) hardware selection, network topology, and site preparation; and (3) implementation time table. Sample planning and specification worksheets and a list of planning guides are included. (Contains six references.) (KRN)
ARBA Guide to Biographical Resources 1986-1997.
ERIC Educational Resources Information Center
Wick, Robert L., Ed.; Mood, Terry Ann, Ed.
This guide provides a representative selection of biographical dictionaries and related works useful to the reference and collection development processes in all types of libraries. Three criteria were used in selection: (1) each item included was published within the past 12 years; (2) each item has been included in American Reference Books…
Direct-patterned optical waveguides on amorphous silicon films
Vernon, Steve; Bond, Tiziana C.; Bond, Steven W.; Pocha, Michael D.; Hau-Riege, Stefan
2005-08-02
An optical waveguide structure is formed by embedding a core material within a medium of lower refractive index, i.e. the cladding. The optical index of refraction of amorphous silicon (a-Si) and polycrystalline silicon (p-Si), in the wavelength range between about 1.2 and about 1.6 micrometers, differ by up to about 20%, with the amorphous phase having the larger index. Spatially selective laser crystallization of amorphous silicon provides a mechanism for controlling the spatial variation of the refractive index and for surrounding the amorphous regions with crystalline material. In cases where an amorphous silicon film is interposed between layers of low refractive index, for example, a structure comprised of a SiO.sub.2 substrate, a Si film and an SiO.sub.2 film, the formation of guided wave structures is particularly simple.
NASA Astrophysics Data System (ADS)
Wendt, Klaus; Gottwald, Tina; Hanstorp, Dag; Mattolat, Christoph; Raeder, Sebastian; Rothe, Sebastian; Schwellnus, Fabio; Havener, Charles; Lassen, Jens; Liu, Yuan
2010-02-01
Laser ion sources based on resonant excitation and ionization of atoms are well-established tools for selective and efficient production of radioactive ion beams. A recent trend is the complementary installation of reliable state-of-the-art all solid-state Ti:Sapphire laser systems. To date, 35 elements of the Periodic Table are available at laser ion sources by using these novel laser systems, which complements the overall accessibility to 54 elements including use of traditional dye lasers. Recent progress in the field concerns the identification of suitable optical excitation schemes for Ti:Sapphire laser excitation as well as technical developments of the source in respect to geometry, cavity material as well as by incorporation of an ion guide system in the form of the laser ion source trap LIST.
Applying learning theories and instructional design models for effective instruction.
Khalil, Mohammed K; Elkhider, Ihsan A
2016-06-01
Faculty members in higher education are involved in many instructional design activities without formal training in learning theories and the science of instruction. Learning theories provide the foundation for the selection of instructional strategies and allow for reliable prediction of their effectiveness. To achieve effective learning outcomes, the science of instruction and instructional design models are used to guide the development of instructional design strategies that elicit appropriate cognitive processes. Here, the major learning theories are discussed and selected examples of instructional design models are explained. The main objective of this article is to present the science of learning and instruction as theoretical evidence for the design and delivery of instructional materials. In addition, this article provides a practical framework for implementing those theories in the classroom and laboratory. Copyright © 2016 The American Physiological Society.
Hart, Susan; Marnane, Claire; McMaster, Caitlin; Thomas, Angela
2018-01-01
There is limited evidence to inform nutrition and dietetic interventions for individuals with eating disorders even though it is recommended as an essential part of multidisciplinary management. There is minimal guidance, an absence of standardised nutrition educational material, and no research on how best to educate patients on healthy eating and how to achieve nutrition adequacy. Therefore the REAL Food Guide was developed. The REAL Food Guide is a pyramid with four layers and key nutrition messages beside each layer that was conceived to address gaps in nutrition education and intervention for individuals with eating disorders. Written and verbal consumer feedback was obtained from consumers receiving treatment regarding the acceptability and usefulness of the REAL Food Guide. A unique database was developed to reflect the types of foods and realistic portion sizes that patients are likely to select. This database was used for nutrition modelling to assess the nutrition adequacy of three meal patterns (meat containing, vegetarian and semi-vegan) for both weight maintenance and weight regain. Each meal pattern was compared to the Nutrient Reference Values for Australia and New Zealand. Nutritional analysis demonstrated nutritional adequacy of meal patterns for energy, macronutrients and most micronutrients when the recommended number of serves from the REAL Food Guide were assessed. All meal patterns were adequate in micronutrients except for the semi-vegan meal pattern that was inadequate in vitamin D. Feedback from individuals with eating disorders demonstrates the nutrition education tool was acceptable to them as they felt it was more helpful for their recovery than general nutrition guidelines. The REAL Food Guide is a comprehensive and user-friendly guide that clinicians can use to educate patients about components of a balanced and healthy diet. The guide can educate all eating disorder clinicians, including those who are new to the field, about the basics of nutrition. Clinicians using the guide can be confident that, if followed, patient's energy and nutritional requirements will be met and important nutrition education messages are reinforced, that are tailored to the beliefs and concerns of individuals with eating disorders.
Aztec Ruins National Monument. Teacher's Guide, Grades 4-7.
ERIC Educational Resources Information Center
Nichols, Theresa, Comp.
This teacher's guide is for educators in classrooms, outdoor education, youth groups, scouting, and after-school programs to teach about the Aztec Ruins National Monument (New Mexico). The teaching materials in the guide support the New Mexico educational standards in science, social studies, language arts, mathematics, and art. Since the guide's…
Improving the Impact of Extension through the Use of Anticipation Guides
ERIC Educational Resources Information Center
Smith, Rebecca C.; Lemley, Stephanie M.
2017-01-01
In this article, we present the anticipation guide as a tool for preparing Extension audiences to learn the main points of Extension materials. Anticipation guides improve learner comprehension by appealing to an individual's natural curiosity and helping the individual focus on key ideas. Anticipation guides can be used with all types of…
The Live Oak Curriculum: A Guide to Preschool Planning in the Heterogeneous Classroom.
ERIC Educational Resources Information Center
Meyers, Celeste, Ed.
Presented is a curriculum guide for preschool programs serving both handicapped and nonhandicapped children. It is explained that the guide is intended to suggest classroom activities which will strengthen existing skills and encourage development of new skills. The guide presents information on objectives, materials and procedures for the…
ERIC Educational Resources Information Center
Schaap, Eileen, Ed.; Fresen, Sue, Ed.
This teacher's guide and student guide unit contains supplemental readings, activities, and methods adapted for secondary students who have disabilities and other students with diverse learning needs. The materials differ from standard textbooks and workbooks in several ways: simplified text; smaller units of study; reduced vocabulary level;…
Managerial Finance. Unit Study Guides.
ERIC Educational Resources Information Center
Billingham, Carol J.
This self-instructional study guide is part of the materials for a college-level programmed course in managerial finance. The study guide is intended for use by students in conjunction with a separate student manual and a series of instructional tape casettes. The study guide contains seven major units that focus in turn on the goal of financial…
Welder's Helper. Coordinator's Guide. Individualized Study Guide. General Metal Trades.
ERIC Educational Resources Information Center
Dean, James W.
This guide provides information to enable coordinators to direct learning activities for students using an individualized study guide on being a welder's helper. The study material is designed for students enrolled in cooperative part-time training and employed, or desiring to be employed, as welders' helpers. Contents include a sample progress…
Leader's Guide: Facilitating Inquiry in the Classroom.
ERIC Educational Resources Information Center
Newton, Fred E.
This is the leader's guide and training materials for conducting workshops on an instructional system which utilizes the process of inquiry. The guide is designed for leaders of these workshops and lists the leader's activities. It is organized according to the 18 major workshop experiences, referred to as subset. Each subset guide is organized…
Apparatus for loading a band saw blade
Reeves, Steven R.
1990-01-01
A band saw blade is loaded between pairs of guide wheels upon tensioning the blade by guiding the blade between pairs of spaced guide plates which define converging slots that converge toward the guide wheels. The approach is particularly useful in loading blades on underwater band saw machines used to cut radioactive materials.
The Development of a Vocational Safety Guide for Missouri's Practitioners. Final Report.
ERIC Educational Resources Information Center
Dyrenfurth, Michael; Linhardt, Richard
A project was conducted to develop a comprehensive vocational education safety guide for local administrators and teachers. To generate the guide, the following steps were completed: (1) a review of key related research, literature, and federal and state legislation, including vocational safety guides from 18 states; reference material from the…
ERIC Educational Resources Information Center
Walford, Sylvia B.; Thomas, Portia R.
This teacher's guide and student guide are designed to accompany a consumer mathematics textbook that contains supplemental readings, activities, and methods adapted for secondary students who have disabilities and other students with diverse learning needs. The materials are designed to help these students succeed in regular education content…
Ground Instructor Written Test Guide--Basic-Advanced. Revised 1972.
ERIC Educational Resources Information Center
Federal Aviation Administration (DOT), Washington, DC. Flight Standards Service.
The test guide was prepared to assist applicants who are preparing for the Ground Instructor Written Test. It supersedes the 1967 examination guide. The guide outlines the scope of the basic aeronautical knowledge requirements for a ground instructor; acquaints the applicant with source material that may be used to acquire this basic knowledge;…
Law 20-30. Business Education Curriculum Guide.
ERIC Educational Resources Information Center
Alberta Dept. of Education, Edmonton. Curriculum Branch.
This curriculum guide is one of nine such guides developed for an Alberta high school business education program. Its content covers the main subject area or strand of law. Subject to the constraints outlined in the guide, the modules are to be formatted into three- or four-credit courses within each strand. Introductory materials include a…
The Effects of Guided Notes on Pre-Lecture Quiz Scores in Introductory Psychology
ERIC Educational Resources Information Center
Glodowski, Kathryn; Thompson, Rachel
2018-01-01
Guided notes covering lectures have been shown to improve note quality and increase scores on quizzes covering lecture material. We sought to determine whether guided notes would also be beneficial in helping students prepare for quizzes covering assigned readings. We evaluated the efficacy of guided notes for reading assignments on…
Lathe Operator. Coordinator's Guide. Individualized Study Guide. General Metal Trades.
ERIC Educational Resources Information Center
East Texas State Univ., Commerce. Occupational Curriculum Lab.
This guide provides information to enable coordinators to direct learning activities for students using an individualized study guide on operating a lathe. The study material is designed for students enrolled in cooperative part-time training and employed, or desiring to be employed, as lathe operators. Contents include a sample progress chart,…
ERIC Educational Resources Information Center
Danner, Greg, Ed.; Fresen, Sue, Ed.
This teacher's guide and student guide unit contains supplemental readings, activities, and methods adapted for secondary students who have disabilities and other students with diverse learning needs. The materials are designed to help these students succeed in regular education content courses and include simplified text and smaller units of…
Marketing 20-30. Business Education Curriculum Guide.
ERIC Educational Resources Information Center
Alberta Dept. of Education, Edmonton. Curriculum Branch.
This curriculum guide is one of nine such guides developed for an Alberta high school business education program. Its content covers the main subject area or strand of marketing. Subject to the constraints outlined in the guide, the modules are to be formatted into three- or four-credit courses within each strand. Introductory materials include a…
Radiological Defense. Planning and Operations Guide. Revised.
ERIC Educational Resources Information Center
Office of Civil Defense (DOD), Washington, DC.
This guide is a reprint of published and draft materials from the Federal Civil Defense Guide. This guide is intended to assist the student in planning, developing, implementing and operating a local, county, or state radiological defense (RADEF) system. The state and local radiological defense program objectives are to create an effective and…
Apparel. Vocational Home Economics Education.
ERIC Educational Resources Information Center
Texas Tech Univ., Lubbock. Home Economics Curriculum Center.
This curriculum guide for apparel is one of a number of guides developed for use in vocational home economics education in Texas. Introductory materials address use of the guide and list the essential elements upon which the content is based. The guide is divided into six units: individual and family apparel decisions, apparel management,…
Shorthand 20-30. Business Education Curriculum Guide.
ERIC Educational Resources Information Center
Alberta Dept. of Education, Edmonton. Curriculum Branch.
This curriculum guide is one of nine such guides developed for an Alberta high school business education program. Its content covers the main subject area or strand of shorthand. Subject to the constraints outlined in the guide, the modules are to be formatted into three- or four-credit courses within each strand. Introductory materials include a…
Medical Secretary and Medical Office Assistant Curriculum Guide.
ERIC Educational Resources Information Center
Michigan State Univ., East Lansing. Coll. of Agriculture and Natural Resources Education Inst.
This curriculum guide consists of materials for use in teaching a competency-based course to prepare students for employment as medical secretaries or medical office assistants. The first part of the guide contains introductory information, including a description of the development of the guide, an equipment list, a list of criteria for…
NASA Astrophysics Data System (ADS)
Rutigliani, Vito; Lorusso, Gian Francesco; De Simone, Danilo; Lazzarino, Frederic; Rispens, Gijsbert; Papavieros, George; Gogolides, Evangelos; Constantoudis, Vassilios; Mack, Chris A.
2018-03-01
Power spectral density (PSD) analysis is playing more and more a critical role in the understanding of line-edge roughness (LER) and linewidth roughness (LWR) in a variety of applications across the industry. It is an essential step to get an unbiased LWR estimate, as well as an extremely useful tool for process and material characterization. However, PSD estimate can be affected by both random to systematic artifacts caused by image acquisition and measurement settings, which could irremediably alter its information content. In this paper, we report on the impact of various setting parameters (smoothing image processing filters, pixel size, and SEM noise levels) on the PSD estimate. We discuss also the use of PSD analysis tool in a variety of cases. Looking beyond the basic roughness estimate, we use PSD and autocorrelation analysis to characterize resist blur[1], as well as low and high frequency roughness contents and we apply this technique to guide the EUV material stack selection. Our results clearly indicate that, if properly used, PSD methodology is a very sensitive tool to investigate material and process variations
Controlling conflict from interfering long-term memory representations.
Jost, Kerstin; Khader, Patrick H; Düsel, Peter; Richter, Franziska R; Rohde, Kristina B; Bien, Siegfried; Rösler, Frank
2012-05-01
Remembering is more than an activation of a memory trace. As retrieval cues are often not uniquely related to one specific memory, cognitive control should come into play to guide selective memory retrieval by focusing on relevant while ignoring irrelevant information. Here, we investigated, by means of EEG and fMRI, how the memory system deals with retrieval interference arising when retrieval cues are associated with two material types (faces and spatial positions), but only one is task-relevant. The topography of slow EEG potentials and the fMRI BOLD signal in posterior storage areas indicated that in such situations not only the relevant but also the irrelevant material becomes activated. This results in retrieval interference that triggers control processes mediated by the medial and lateral PFC, which are presumably involved in biasing target representations by boosting the task-relevant material. Moreover, memory-based conflict was found to be dissociable from response conflict that arises when the relevant and irrelevant materials imply different responses. The two types of conflict show different activations in the medial frontal cortex, supporting the claim of domain-specific prefrontal control systems.
Oxidation Ditches. Instructor's Guide. Biological Treatment Process Control.
ERIC Educational Resources Information Center
Nelsen, David
This instructor's guide contains materials needed for teaching a two-lesson unit on oxidation ditches. These materials include: (1) an overview of the two lessons; (2) lesson plans; (3) lecture outlines; (4) student worksheet (with answers); and (5) two copies of a final quiz (with and without answers). The first lesson: reviews the theory,…
Teacher's Guide: Educational Materials in Resource Recovery: Grades K-12. Second Edition.
ERIC Educational Resources Information Center
Berg, Cathy A.
This guide contains a bibliography of curricula (available from agencies, organizations, and through ERIC), audiovisual aids, children's books, and publications about resource recovery. Resource recovery is presented as a strategy to reduce air and water pollution, to conserve natural resources, and to save energy. These materials (suitable for…
Parts Counter. Pre-Apprenticeship Phase 1 Training. Instructor's Guide.
ERIC Educational Resources Information Center
Lane Community Coll., Eugene, OR.
This instructor's guide is designed to accompany self-paced student training modules on the Parts Counter Trade. Introductory materials include an introduction to pre-apprenticeship training, and a course outline. Teaching outlines are then provided for the 11 modules that comprise this course. For each module some or all of this material may be…
Space Shuttle. Teacher's Guide [and] Student Material.
ERIC Educational Resources Information Center
Butler, Della
The teacher's guide and student materials provide elementary and junior high school students with an understanding of the space shuttle as a new kind of transportation for conveying goods and performing services in space. The unit is appropriate for a learning center approach, individual instruction, or use with the entire class. It is organized…
Locating Asian Materials in the Meramec Library. Asian Studies Module.
ERIC Educational Resources Information Center
Finkelston, Candy
This curriculum guide introduces the different components of a library science course which provides students with the basic skills to search Asian sources and materials. The first part of the curriculum guide discusses the student objectives of the course, which is designed to provide students with expanded knowledge of searching CD-ROM programs…
ERIC Educational Resources Information Center
Oregon Vocational Association, Gervais.
Intended as a resource tool for integrating energy and conservation education into the vocational skills areas, this resource guide consists of listings of instructional and technical materials pertaining to 14 vocational curriculum areas. These areas are agriculture, agriculture/agribusiness, architecture, automotive, business, construction,…
Materials for Serving Homeless Adult Learners. A Resource Guide.
ERIC Educational Resources Information Center
Office of Vocational and Adult Education (ED), Washington, DC. Div. of Adult Education and Literacy.
This guide is intended to assist in linking service providers to existing resources and models and to build awareness of the body of innovative work that has been developed to respond to needs of homeless adult learners. It describes materials for instruction, outreach, and program management that were primarily developed in projects funded under…
Exploration of Public Service Occupations. Curriculum Guide.
ERIC Educational Resources Information Center
California State Dept. of Education, Sacramento. Div. of Vocational Education.
The guide contains the basic concepts and instructional materials recommended for the exploration of public service occupations at the junior high school level (grades 7-9). The materials can be used as a separate course or can be integrated into the subject areas suggested. The 17 units deal with the functioning of Federal, State, and local…
Industrial Electricity: Motors. Oklahoma Trade and Industrial Education.
ERIC Educational Resources Information Center
Teague, Cash; Pewewardy, Garner
This curriculum guide provides competency-based instructional materials for training in the field of industrial electricity. Materials are not geared to a specific grade level and may be used with secondary and postsecondary students as well as part- and full-time adult students. The guide includes three sections and ten instructional units. Each…
Dr. Penny. Teacher's Guide [and] Student Material.
ERIC Educational Resources Information Center
Butler, Della
This unit, which contains a teacher's guide and student materials, is designed for students with limited acquaintance with money (Grades K-1). Activities reinforce the basic concept of recognizing a penny, counting pennies, and associating monetary value with pennies from one to ten cents. These activities include listening to a taped read-along…
Graphic Arts: Process Camera, Stripping, and Platemaking. Teacher Guide.
ERIC Educational Resources Information Center
Feasley, Sue C., Ed.
This curriculum guide is the second in a three-volume series of instructional materials for competency-based graphic arts instruction. Each publication is designed to include the technical content and tasks necessary for a student to be employed in an entry-level graphic arts occupation. Introductory materials include an instructional/task…
Agriculture--Forestry. Kit No. 31. Instructor's Manual [and] Student Learning Activity Guide.
ERIC Educational Resources Information Center
Sloan, Lee
An instructor's manual and student activity guide on forestry are provided in this set of prevocational education materials which focuses on the vocational area of agriculture. (This set of materials is one of ninety-two prevocational education sets arranged around a cluster of seven vocational offerings: agriculture, home economics, distributive…
ERIC Educational Resources Information Center
The bibliography provides listings of currently available curriculum guides, course outlines, instructional and reference materials, and visual aids relevant to all areas of vocational education. The major areas under which listings are grouped include business and office occupations, trade and technical vocations, health education and…
Cosmetology. Kit No. 3. Instructor's Manual [and] Student Learning Activity Guide.
ERIC Educational Resources Information Center
Wilkins, Thelma
An instructor's manual and student activity guide on cosmetology are provided in this set of prevocational education materials which focuses on the vocational area of trade and industry. (This set of materials is one of ninety-two prevocational education sets arranged around a cluster of seven vocational offerings: agriculture, home economics,…
78 FR 26289 - Guides for the Jewelry, Precious Metals, and Pewter Industries: Public Roundtable
Federal Register 2010, 2011, 2012, 2013, 2014
2013-05-06
... indicate in descriptive marketing materials (e.g., advertisements, labels, tags) that a below-standard... evaluate whether any change or additional guidance is necessary to prevent consumer deception and, if so... recommended a revision to the Guides that would allow sellers to indicate in descriptive marketing materials...
ERIC Educational Resources Information Center
National Accreditation Council for Agencies Serving the Blind and Visually Handicapped, New York, NY.
The guide provides accreditation standards for programs which transcribe printed matter into alternate media for blind and visually handicapped persons. Presented in a self study format, the booklet touches upon six aspects of the production of reading materials (sample subtopics in parentheses): planning and organization (administration,…