75 FR 53714 - Stainless Steel Butt-Weld Pipe Fittings From Japan, Korea, and Taiwan

Science.gov (United States)

2010-09-01

...)] Stainless Steel Butt-Weld Pipe Fittings From Japan, Korea, and Taiwan AGENCY: United States International... stainless steel butt-weld pipe fittings from Japan, Korea, and Taiwan. SUMMARY: The Commission hereby gives... butt-weld pipe fittings from Japan, Korea, and Taiwan would be likely to lead to continuation or...

Regulating the disposal of cigarette butts as toxic hazardous waste.

Science.gov (United States)

Barnes, Richard L

2011-05-01

The trillions of cigarette butts generated each year throughout the world pose a significant challenge for disposal regulations, primarily because there are millions of points of disposal, along with the necessity to segregate, collect and dispose of the butts in a safe manner, and cigarette butts are toxic, hazardous waste. There are some hazardous waste laws, such as those covering used tyres and automobile batteries, in which the retailer is responsible for the proper disposal of the waste, but most post-consumer waste disposal is the responsibility of the consumer. Concepts such as extended producer responsibility (EPR) are being used for some post-consumer waste to pass the responsibility and cost for recycling or disposal to the manufacturer of the product. In total, 32 states in the US have passed EPR laws covering auto switches, batteries, carpet, cell phones, electronics, fluorescent lighting, mercury thermostats, paint and pesticide containers, and these could be models for cigarette waste legislation. A broader concept of producer stewardship includes EPR, but adds the consumer and the retailer into the regulation. The State of Maine considered a comprehensive product stewardship law in 2010 that is a much better model than EPR. By using either EPR or the Maine model, the tobacco industry will be required to cover the cost of collecting and disposing of cigarette butt waste. Additional requirements included in the Maine model are needed for consumers and businesses to complete the network that will be necessary to maximise the segregation and collection of cigarette butts to protect the environment.

College Preparation for Students with Learning Disabilities: A Curriculum Approach.

Science.gov (United States)

Whinnery, Keith W.

1992-01-01

A college preparation curriculum relevant to the needs of students with learning disabilities is presented, focusing on early planning, instructional modifications, strategy instruction, and support services. (JDD)

Preparing Students for After-College Life: The Context

Science.gov (United States)

Smith, Kelli K.

2012-01-01

Historical context informs the work of student affairs professionals and others in higher education in striking the right balance in helping prepare students for life after college, but significant new pressures face students, their mentors, and educational institutions today. This chapter discusses the contexts that shape the work of student…

Deliberate Disequilibrium: Preparing for a Community College Presidency

Science.gov (United States)

McNair, Delores E.

2015-01-01

Anticipated retirements and relatively short tenure in office create a shortage of community college presidents in the United States. To fill the unprecedented number of vacancies requires a cadre of candidates well prepared for the demands of the position. Using Satir's change model as a theoretical framework, this year-long reflective study…

Supporting Geoscience Students at Two-Year Colleges: Career Preparation and Academic Success

Science.gov (United States)

McDaris, J. R.; Kirk, K. B.; Layou, K.; Macdonald, H.; Baer, E. M.; Blodgett, R. H.; Hodder, J.

2013-12-01

Two-year colleges play an important role in developing a competent and creative geoscience workforce, teaching science to pre-service K-12 teachers, producing earth-science literate citizens, and providing a foundation for broadening participation in the geosciences. The Supporting and Advancing Geoscience Education in Two-Year Colleges (SAGE 2YC) project has developed web resources for geoscience faculty on the preparation and support of students in two-year colleges (2YCs). Online resources developed from two topical workshops and several national, regional, and local workshops around the country focus on two main categories: Career Preparation and Workforce Development, and Supporting Student Success in Geoscience at Two-year Colleges. The Career Preparation and Workforce Development resources were developed to help faculty make the case that careers in the geosciences provide a range of possibilities for students and to support preparation for the geoscience workforce and for transfer to four-year programs as geoscience majors. Many two-year college students are unaware of geoscience career opportunities and these materials help illuminate possible futures for them. Resources include an overview of what geoscientists do; profiles of possible careers along with the preparation necessary to qualify for them; geoscience employer perspectives about jobs and the knowledge, skills, abilities and attitudes they are looking for in their employees; employment trends in sectors of the economy that employ geoscience professionals; examples of geotechnician workforce programs (e.g. Advanced Technological Education Centers, environmental technology programs, marine technician programs); and career resources available from professional societies. The website also provides information to support student recruitment into the geosciences and facilitate student transfer to geoscience programs at four- year colleges and universities, including sections on advising support before

77 FR 42697 - Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines: Continuation...

Science.gov (United States)

2012-07-20

...] Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines: Continuation of... from Italy, Malaysia, and the Philippines.\\2\\ \\1\\ See Antidumping Duty Orders: Stainless Steel Butt...), titled Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines (Investigation...

Radio and television use in Butte County, California: application to fire prevention

Science.gov (United States)

William S. Folkman

1975-01-01

A sample of Butte County residents were interviewed about their radio and television use habits. Their responses were analyzed in terms of demographic, social, and economic characteristics. The findings can be used in developing more effective fire prevention programs. Most people in Butte County listen to the radio or watch television but they differ widely in the way...

77 FR 14002 - Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines: Final Results...

Science.gov (United States)

2012-03-08

...] Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines: Final Results of the... Duty Orders on Stainless Steel Butt-Weld Pipe Fittings from Italy, Malaysia, and the Philippines'' from... Commerce (the Department) initiated sunset reviews of the antidumping duty orders on stainless steel butt...

Dormaier and Chester Butte 2007 Follow-up Habitat Evaluation Procedures Report.

Energy Technology Data Exchange (ETDEWEB)

Ashley, Paul R.

2008-01-01

Follow-up habitat evaluation procedures (HEP) analyses were conducted on the Dormaier and Chester Butte wildlife mitigation sites in April 2007 to determine the number of additional habitat units to credit Bonneville Power Administration (BPA) for providing funds to enhance, and maintain the project sites as partial mitigation for habitat losses associated with construction of Grand Coulee Dam. The Dormaier follow-up HEP survey generated 482.92 habitat units (HU) or 1.51 HUs per acre for an increase of 34.92 HUs over baseline credits. Likewise, 2,949.06 HUs (1.45 HUs/acre) were generated from the Chester Butte follow-up HEP analysis for an increase of 1,511.29 habitat units above baseline survey results. Combined, BPA will be credited with an additional 1,546.21 follow-up habitat units from the Dormaier and Chester Butte parcels.

Investigating Differences in Personality Traits and Academic Needs among Prepared and Underprepared First-Year College Students

Science.gov (United States)

Melzer, Dawn K.; Grant, Ruth M.

2016-01-01

Research has discovered that underprepared students are more likely to exhibit an external locus of control and low self-efficacy than those considered prepared. What differences exist between prepared and underprepared college students that may account for the variation in college performance? The objective of this study was to explore…

A study of fatigue life distribution of butt-welded joints

International Nuclear Information System (INIS)

Sakai, Tatsuo; Fujitani, Keizo; Kikuchi, Toshiro; Tanaka, Takao.

1981-01-01

Various kinds of welded joints are being used in many structures such as ships, bridges and constructions. It is important in reliability analysis of such structures to clarify the statistical fatigue property of the welded joints. In this study, fatigue tests were carried out on the butt-welded joints of SM50A steel and a theoretical interpretation on the fatigue life distribution was attempted, assuming that a butt-welded joint is composed of a number of sliced specimens with different fatigue strengths. Main results obtained are summarized as follows; (1) The median crack initiation life of the butt-welded joint specimens coincided with that of the sliced specimens, when the crack initiation was defined by a 0.2 mm crack in the sliced specimens or the equivalent state of stress intensity factor in the joint specimens. (2) The distribution of crack initiation lives of the butt-welded joints can be theoretically derived by combining the concept of extreme distribution and the distribution model on the number of fatigue cracks. The theoretical distribution of crack initiation lives of the joints is in good agreement with the general trend of the experimental results. (3) If the distribution of crack initiation lives and the crack growth law are given experimentally, one can obtain analytically the distribution of final fatigue lives. The fatigue life distribution of the sliced specimens can be explained by the theory established in this study. (author)

76 FR 67473 - Stainless Steel Butt-Weld Pipe Fittings from Italy, Malaysia, and The Philippines; Institution of...

Science.gov (United States)

2011-11-01

... Concerning the Antidumping Duty Orders on Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and... stainless steel butt-weld pipe fittings from Italy, Malaysia, and the Philippines would be likely to lead to... antidumping duty orders on imports of stainless steel butt-weld pipe fittings from Italy, Malaysia, and the...

GAP WIDTH STUDY IN LASER BUTT-WELDING

DEFF Research Database (Denmark)

Gong, Hui; Olsen, Flemming Ove

power : 2 and 2.6 kW and the focal point position : 0 and -1.2 mm. Quality of all the butt welds are destructively tested according to ISO 13919-1.Influences of the variable process parameters to the maximum allowable gap width are observed as (1) the maximum gap width is inversely related......In this paper the maximum allowable gap width in laser butt-welding is intensively studied. The gap width study (GWS) is performed on the material of SST of W1.4401 (AISI 316) under various welding conditions, which are the gap width : 0.00-0.50 mm, the welding speed : 0.5-2.0 m/min, the laser...... to the welding speed, (2) the larger laser power leads to the bigger maximum allowable gap width and (3) the focal point position has very little influence on the maximum gap width....

The Western Environmental Technology Office (WETO), Butte, Montana. Technology summary (Revised)

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

This document has been prepared by the US Department of Energy`s (DOE`s) Office of Environmental Management (EM) Office of Science and Technology (OST) to highlight its research, development, demonstration, testing, and evaluation (RDDT&E) activities funded through the Western environmental Technology Office (WETO) in Butte, Montana. Technologies and processes described in this document have the potential to enhance DOE`s cleanup and waste management efforts, as well as improve US industry`s competitiveness in global environmental markets. The information presented in this document has been assembled from recently produced OST documents that highlight technology development activities within each of the OST program elements and Focus Areas. This document presents one in a series for each of DOE`s Operations Office and Energy Technology Centers.

The Western Environmental Technology Office (WETO), Butte, Montana. Technology summary (Revised)

International Nuclear Information System (INIS)

1996-03-01

This document has been prepared by the US Department of Energy's (DOE's) Office of Environmental Management (EM) Office of Science and Technology (OST) to highlight its research, development, demonstration, testing, and evaluation (RDDT ampersand E) activities funded through the Western environmental Technology Office (WETO) in Butte, Montana. Technologies and processes described in this document have the potential to enhance DOE's cleanup and waste management efforts, as well as improve US industry's competitiveness in global environmental markets. The information presented in this document has been assembled from recently produced OST documents that highlight technology development activities within each of the OST program elements and Focus Areas. This document presents one in a series for each of DOE's Operations Office and Energy Technology Centers

Preparing Community College Leaders: The AACC Core Competencies for Effective Leadership & Doctoral Education

Science.gov (United States)

McNair, Delores E.

2010-01-01

Community colleges in the United States face shortages of leaders prepared to assume administrative positions in the 21st century. To respond to this shortage, graduate programs are emerging with a specific emphasis on community college leadership; other graduate programs offer broader curricula focused on educational leadership, policy, or higher…

Revisiting Constructivist Teaching Methods in Ontario Colleges Preparing for Accreditation

Science.gov (United States)

Schultz, Rachel A.

2015-01-01

At the time of writing, the first community colleges in Ontario were preparing for transition to an accreditation model from an audit system. This paper revisits constructivist literature, arguing that a more pragmatic definition of constructivism effectively blends positivist and interactionist philosophies to achieve both student centred…

75 FR 76025 - Stainless Steel Butt-Weld Pipe Fittings From Japan, Korea, and Taiwan

Science.gov (United States)

2010-12-07

... INTERNATIONAL TRADE COMMISSION [Investigation Nos. 731-TA-376 and 563-564 (Third Review)] Stainless Steel Butt-Weld Pipe Fittings From Japan, Korea, and Taiwan AGENCY: United States International... steel butt-weld pipe fittings from Japan, Korea, and Taiwan would be likely to lead to continuation or...

The Preparation of Master's-Level Professional Counselors for Positions in College and University Counseling Centers

Science.gov (United States)

Shaw, Brian M.; Remley, Theodore P., Jr.; Ward, Christine

2014-01-01

This study investigated college and university counseling center directors' perceptions of the adequacy of the preparation of master's-level counselors for work in college and university counseling centers. Results indicated that counselors were rated on average as prepared; however, many directors had concerns about counselors'…

Numerical estimation of temperature field in a laser welded butt joint made of dissimilar materials

Directory of Open Access Journals (Sweden)

Saternus Zbigniew

2018-01-01

Full Text Available The paper concerns numerical analysis of thermal phenomena occurring in the butt welding of two different materials by a laser beam welding. The temperature distribution for the welded butt-joint is obtained on the basis of numerical simulations performed in the ABAQUS program. Numerical analysis takes into account the thermophysical properties of welded plate made of two different materials. Temperature distribution in analysed joints is obtained on the basis of numerical simulation in Abaqus/Standard solver, which allowed the determination of the geometry of laser welded butt-joint.

78 FR 21582 - Revisions to the California State Implementation Plan, Butte County Air Quality Management...

Science.gov (United States)

2013-04-11

... the California State Implementation Plan, Butte County Air Quality Management District and Sacramento Metropolitan Air Quality Management District AGENCY: Environmental Protection Agency (EPA). ACTION: Proposed rule. SUMMARY: EPA is proposing to approve revisions to the Butte County Air Quality Management...

Microstructure and mechanical performance of autogenously fibre laser beam welded Ti-6242 butt joints

Energy Technology Data Exchange (ETDEWEB)

Kashaev, Nikolai, E-mail: nikolai.kashaev@hzg.de; Pugachev, Dmitry; Ventzke, Volker; Fomin, Fedor; Burkhardt, Irmela; Enz, Josephin; Riekehr, Stefan

2017-05-10

This work deals with the effects of laser beam power, focus position and advance speed on the geometry, microstructure and mechanical properties such as the tensile strength and microhardness of autogenously fibre laser beam welded Ti-6Al-2Sn-4Zr-2Mo (denoted as Ti-6242) butt joints used for high temperature applications. The Ti-6242 sheet employed here is characterized by a globular (α+β) microstructure. Laser beam welded butt joints consisted of a martensitic fusion zone, inhomogeneous heat affected zones and equiaxed base materials. The microhardness increased from 330 HV 0.3 in base material to 430 HV 0.3 in fusion zone due to the martensitic transformation. Butt joints showed the base material level of strength in tensile test. The local increase in microhardness provided a shielding effect that protected the Ti-6242 butt joint against mechanical damage during the static tensile load test. The predicted critical total underfill depth that does not reduce the tensile strength of the weld was determined to be 25% of the specimen thickness. - Highlights: • Autogenous fibre LBW of Ti-6242 was successfully achieved. • Butt joints showed low levels of porosity and an appropriate seam geometry. • Base material level of strength achieved for tensile strength. • Predicted critical underfill depth is 25% of the specimen thickness.

Burnout in College Seniors Preparing for the Human Services Professions.

Science.gov (United States)

Edwards, James G.

The Maslach Burnout Inventory (MBI) was used to assess the level and intensity of burnout in 165 California State University at Long Beach college seniors preparing for the human services professions, specifically teaching, nursing, criminal justice, and social welfare. A comparison group of 80 engineering seniors was also assessed. The 40-item…

Cigarettes butts and the case for an environmental policy on hazardous cigarette waste.

Science.gov (United States)

Novotny, Thomas E; Lum, Kristen; Smith, Elizabeth; Wang, Vivian; Barnes, Richard

2009-05-01

Discarded cigarette butts are a form of non-biodegradable litter. Carried as runoff from streets to drains, to rivers, and ultimately to the ocean and its beaches, cigarette filters are the single most collected item in international beach cleanups each year. They are an environmental blight on streets, sidewalks, and other open areas. Rather than being a protective health device, cigarette filters are primarily a marketing tool to help sell 'safe' cigarettes. They are perceived by much of the public (especially current smokers) to reduce the health risks of smoking through technology. Filters have reduced the machine-measured yield of tar and nicotine from burning cigarettes, but there is controversy as to whether this has correspondingly reduced the disease burden of smoking to the population. Filters actually may serve to sustain smoking by making it seem less urgent for smokers to quit and easier for children to initiate smoking because of reduced irritation from early experimentation. Several options are available to reduce the environmental impact of cigarette butt waste, including developing biodegradable filters, increasing fines and penalties for littering butts, monetary deposits on filters, increasing availability of butt receptacles, and expanded public education. It may even be possible to ban the sale of filtered cigarettes altogether on the basis of their adverse environmental impact. This option may be attractive in coastal regions where beaches accumulate butt waste and where smoking indoors is increasingly prohibited. Additional research is needed on the various policy options, including behavioral research on the impact of banning the sale of filtered cigarettes altogether.

Cigarettes Butts and the Case for an Environmental Policy on Hazardous Cigarette Waste

Directory of Open Access Journals (Sweden)

Richard Barnes

2009-05-01

Full Text Available Discarded cigarette butts are a form of non-biodegradable litter. Carried as runoff from streets to drains, to rivers, and ultimately to the ocean and its beaches, cigarette filters are the single most collected item in international beach cleanups each year. They are an environmental blight on streets, sidewalks, and other open areas. Rather than being a protective health device, cigarette filters are primarily a marketing tool to help sell ‘safe’ cigarettes. They are perceived by much of the public (especially current smokers to reduce the health risks of smoking through technology. Filters have reduced the machine-measured yield of tar and nicotine from burning cigarettes, but there is controversy as to whether this has correspondingly reduced the disease burden of smoking to the population. Filters actually may serve to sustain smoking by making it seem less urgent for smokers to quit and easier for children to initiate smoking because of reduced irritation from early experimentation. Several options are available to reduce the environmental impact of cigarette butt waste, including developing biodegradable filters, increasing fines and penalties for littering butts, monetary deposits on filters, increasing availability of butt receptacles, and expanded public education. It may even be possible to ban the sale of filtered cigarettes altogether on the basis of their adverse environmental impact. This option may be attractive in coastal regions where beaches accumulate butt waste and where smoking indoors is increasingly prohibited. Additional research is needed on the various policy options, including behavioral research on the impact of banning the sale of filtered cigarettes altogether.

77 FR 39735 - Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines

Science.gov (United States)

2012-07-05

... revocation of the antidumping duty orders on stainless steel butt-weld pipe fittings From Italy, Malaysia... INTERNATIONAL TRADE COMMISSION [Investigation Nos. 731-TA-865-867 (Second Review)] Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines Determination On the basis of the...

The Western Environmental Technology Office (WETO), Butte, Montana, technology summary

International Nuclear Information System (INIS)

1994-09-01

This document has been prepared by the DOE Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation activities funded through the Western Environmental Technology Office (WETO) in Butte, Montana. Technologies and processes described have the potential to enhance DOE's cleanup and waste management efforts, as well as improve US industry's competitiveness in global environmental markets. WETO's environmental technology research and testing activities focus on the recovery of useable resources from waste. Environmental technology development and commercialization activities will focus on mine cleanup, waste treatment, resource recovery, and water resource management. Since the site has no record of radioactive material use and no history of environmental contamination/remediation activities, DOE-EM can concentrate on performing developmental and demonstration activities without the demands of regulatory requirements and schedules. Thus, WETO will serve as a national resource for the development of new and innovative environmental technologies

Application Regarding the Butt-Welding Through Intermediate Melting

Directory of Open Access Journals (Sweden)

Tudorel Ene

2006-10-01

Full Text Available It consists in presenting butt welding procedure through intermediate melting and its usage for manufacturing cutting tools type drill, tap screw, reamer by welding the active part (made of high-speed steel to the tool tail (made of unalloyed steel wit low carbon.

Networks for Success: Preparing Mexican American AVID College Students for Credentials, Completion, and the Workforce

Science.gov (United States)

Kirk, Richard; Watt, Karen M.

2018-01-01

This qualitative study examines how Mexican American students participating in an AVID for Higher Education course perceived their preparation for the workforce and efficacy of completing a college credential. A focus group approach was used to explore how social and cultural networks (networks for success) contribute to college completion. The…

An Analytical Study of the Preparation of Community College Physics Teachers.

Science.gov (United States)

Ohm, Kenneth Ronald

Reported is a study of the type and nature of course offerings, student teaching practices, internships, and industrial experiences for the purpose of developing a curriculum necessary for adequate preparation of community college physics teachers. Similar questionnaires were submitted to participants of the 1968 and 1971 summer institutes held at…

The Western Environmental Technology Office (WETO), Butte, Montana, technology summary

Energy Technology Data Exchange (ETDEWEB)

1994-09-01

This document has been prepared by the DOE Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation activities funded through the Western Environmental Technology Office (WETO) in Butte, Montana. Technologies and processes described have the potential to enhance DOE`s cleanup and waste management efforts, as well as improve US industry`s competitiveness in global environmental markets. WETO`s environmental technology research and testing activities focus on the recovery of useable resources from waste. Environmental technology development and commercialization activities will focus on mine cleanup, waste treatment, resource recovery, and water resource management. Since the site has no record of radioactive material use and no history of environmental contamination/remediation activities, DOE-EM can concentrate on performing developmental and demonstration activities without the demands of regulatory requirements and schedules. Thus, WETO will serve as a national resource for the development of new and innovative environmental technologies.

ANSYS Simulation of Residual Strains in Butt-welded Joints

Directory of Open Access Journals (Sweden)

A. Atroshenko

2014-07-01

Full Text Available The effect of thermal-strain cycle on residual strains in thin-walled circular seams of cylindrical shells using TIG butt welds was studied. Estimates were calculated using numerical modelling. The structure was made of corrosion-resistant austenitic steels.

76 FR 43341 - Notice of Availability of the Record of Decision for the West Butte Wind Power Right-of-Way...

Science.gov (United States)

2011-07-20

... LVRWH09H0600; HAG 10-0338] Notice of Availability of the Record of Decision for the West Butte Wind Power Right... INFORMATION CONTACT: Steve Storo, BLM West Butte Wind Power Right-of-Way Project Lead: telephone (541) 416... INFORMATION: The applicant, West Butte Wind Power, LLC, filed right-of-way (ROW) application OR-065784 to...

A parametric study of residual stresses in multipass butt-welded stainless steel pipes

Energy Technology Data Exchange (ETDEWEB)

Brickstad, B. [SAQ Inspection Ltd., Stockholm (Sweden); Josefson, L. [Chalmers Univ. of Technology, Goeteborg (Sweden). Div. of Solid Mechanics

1996-06-01

Multipass circumferential butt-welding of stainless steel pipes is simulated numerically in a non-linear thermo-mechanical FE-analysis. In particular, the through-thickness variation at the weld and heat affected zone, of the axial and hoop stresses and their sensitivity to variation in weld parameters are studied. Recommendations are given for the through thickness variation of the axial and hoop stresses to be used when assessing the growth of surface flaws at circumferential butt welds in nuclear piping system. 31 refs, 12 tabs, 54 figs.

Analysis and Prediction of the Billet Butt and Transverse Weld in the Continuous Extrusion Process of a Hollow Aluminum Profile

Science.gov (United States)

Lou, Shumei; Wang, Yongxiao; Liu, Chuanxi; Lu, Shuai; Liu, Sujun; Su, Chunjian

2017-08-01

In continuous extrusions of aluminum profiles, the thickness of the billet butt and the length of the discarded extrudate containing the transverse weld play key roles in reducing material loss and improving product quality. The formation and final distribution of the billet butt and transverse weld depend entirely on the flow behavior of the billet skin material. This study examined the flow behavior of the billet skin material as well as the formation and evolution of the billet butt and the transverse weld in detail through numerical simulation and a series of experiments. In practical extrusions, even if the billet skin is removed by lathe turning shortly before extrusion, billet skin impurities are still distributed around the transverse weld and in the billet butt. The thickness of the scrap billet butt and the length of the discarded extrudate containing the transverse weld can be exactly predicted via simulation.

77 FR 10773 - Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines; Scheduling of...

Science.gov (United States)

2012-02-23

... Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines; Scheduling of Expedited Five-Year... orders on stainless steel butt-weld pipe fittings from Italy, Malaysia, and the Philippines would be... certificate of service. Determination.--The Commission has determined to exercise its authority to extend the...

76 FR 67146 - Stainless Steel Butt-Weld Pipe Fittings From Italy; Extension of Time Limit for Preliminary...

Science.gov (United States)

2011-10-31

... DEPARTMENT OF COMMERCE International Trade Administration [A-475-828] Stainless Steel Butt-Weld... antidumping duty order on stainless steel butt-weld pipe fittings from Italy in the Federal Register. See... preliminary results of this review within the original time frame because it needs to obtain additional...

Optimization and Prediction of Angular Distortion and Weldment Characteristics of TIG Square Butt Joints

Science.gov (United States)

Narang, H. K.; Mahapatra, M. M.; Jha, P. K.; Biswas, P.

2014-05-01

Autogenous arc welds with minimum upper weld bead depression and lower weld bead bulging are desired as such welds do not require a second welding pass for filling up the upper bead depressions (UBDs) and characterized with minimum angular distortion. The present paper describes optimization and prediction of angular distortion and weldment characteristics such as upper weld bead depression and lower weld bead bulging of TIG-welded structural steel square butt joints. Full factorial design of experiment was utilized for selecting the combinations of welding process parameter to produce the square butts. A mathematical model was developed to establish the relationship between TIG welding process parameters and responses such as upper bead width, lower bead width, UBD, lower bead height (bulging), weld cross-sectional area, and angular distortions. The optimal welding condition to minimize UBD and lower bead bulging of the TIG butt joints was identified.

The Western Environmental Technology Office (WETO), Butte, Montana. Technology summary

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

The Western Environmental Technology Office (WETO) is a multi-purpose engineering test facility located in Butte, Montana, and is managed by MSE, Inc. WETO seeks to contribute to environmental research by emphasizing projects to develop heavy metals removal and recovery processes, thermal vitrification systems, and waste minimization/pollution prevention technologies. WETO`s environmental technology research and testing activities focus on the recovery of usable resources from waste. In one of WETO`s areas of focus, groundwater contamination, water from the Berkeley Pit, located near the WETO site, is being used in demonstrations directed toward the recovery of potable water and metal from the heavy metal-bearing water. The Berkeley Pit is part of an inactive copper mine near Butte that was once part of the nation`s largest open-pit mining operation. The Pit contains approximately 25 billion gallons of Berkeley Pit groundwater and surface water containing many dissolved minerals. As part of DOE/OST`s Resource Recovery Project (RRP), technologies are being demonstrated to not only clean the contaminated water but to recover metal values such as copper, zinc, and iron with an estimated gross value of more than $100 million. When recovered, the Berkeley Pit waters could benefit the entire Butte valley with new water resources for fisheries, irrigation, municipal, and industrial use. At WETO, the emphasis is on environmental technology development and commercialization activities, which will focus on mine cleanup, waste treatment, resource recovery, and water resource management.

The Western Environmental Technology Office (WETO), Butte, Montana. Technology summary

International Nuclear Information System (INIS)

1996-03-01

The Western Environmental Technology Office (WETO) is a multi-purpose engineering test facility located in Butte, Montana, and is managed by MSE, Inc. WETO seeks to contribute to environmental research by emphasizing projects to develop heavy metals removal and recovery processes, thermal vitrification systems, and waste minimization/pollution prevention technologies. WETO's environmental technology research and testing activities focus on the recovery of usable resources from waste. In one of WETO's areas of focus, groundwater contamination, water from the Berkeley Pit, located near the WETO site, is being used in demonstrations directed toward the recovery of potable water and metal from the heavy metal-bearing water. The Berkeley Pit is part of an inactive copper mine near Butte that was once part of the nation's largest open-pit mining operation. The Pit contains approximately 25 billion gallons of Berkeley Pit groundwater and surface water containing many dissolved minerals. As part of DOE/OST's Resource Recovery Project (RRP), technologies are being demonstrated to not only clean the contaminated water but to recover metal values such as copper, zinc, and iron with an estimated gross value of more than $100 million. When recovered, the Berkeley Pit waters could benefit the entire Butte valley with new water resources for fisheries, irrigation, municipal, and industrial use. At WETO, the emphasis is on environmental technology development and commercialization activities, which will focus on mine cleanup, waste treatment, resource recovery, and water resource management

Theology for Citizenship: How a Catholic College in the Augustinian Tradition Prepares Citizens to Transform Society

Science.gov (United States)

Kelley, Joseph T.

2006-01-01

This article uses Vatican and papal documents to reflect on the distinctive mission of Catholic colleges and universities in light of their responsibility to prepare students for virtuous citizenship in a religiously and ethnically pluralistic society. It also shows how one Catholic college understands its academic community in light of such a…

Development of radiographic technique for examining k-type butt weld

International Nuclear Information System (INIS)

Barui, K.L.; Bhattacharyya, B.

1983-01-01

An attempt is made to develop a radiographic technique for examining K-type full penetration butt joints in heavy duty crane girders. The existing standard techniques of radiographic examination is found to be unsuitable to assess the internal defects properly. The examination technique reported here is successful in detecting not only the nature of the internal defects but also their degree of severities - from which clues for avoiding the most probable defects can be found out. The results of radiographic examination applied on the K-type butt joints of heavy duty crane girders have been discussed and it is specified that the acceptable limit of the defects must lie between 'blue' and 'green' according to the IIW colour code. Much work is yet to be done before standard specifications regarding the acceptibility of the defects in the actual job can be formulated. (author)

Computational Modeling of Microstructural-Evolution in AISI 1005 Steel During Gas Metal Arc Butt Welding

Science.gov (United States)

2013-05-01

H.K.D.H. Bhadeshia, A Model for the Microstruc- ture of Some Advanced Bainitic Steels , Mater. Trans., 1991, 32, p 689–696 19. G.J. Davies and J.G. Garland...REPORT Computational Modeling of Microstructural-Evolution in AISI 1005 Steel During Gas Metal Arc Butt Welding 14. ABSTRACT 16. SECURITY...Computational Modeling of Microstructural-Evolution in AISI 1005 Steel During Gas Metal Arc Butt Welding Report Title ABSTRACT A fully coupled (two-way

Predicting Success in College Mathematics from High School Mathematics Preparation

OpenAIRE

Shepley, Richard A.

1983-01-01

The purpose of this study was to develop a model to predict the college mathematics courses a freshman could expect to pass by considering their high school mathematics preparation. The high school information that was used consisted of the student's sex, the student's grade point average in mathematics, the highest level of high school mathematics courses taken, and the number of mathematics courses taken in high school. The high school sample was drawn from graduated Seniors in the State...

Incorporation of cigarette butts into nests reduces nest ectoparasite load in urban birds: new ingredients for an old recipe?

Science.gov (United States)

Suárez-Rodríguez, Monserrat; López-Rull, Isabel; Garcia, Constantino Macías

2013-02-23

Birds are known to respond to nest-dwelling parasites by altering behaviours. Some bird species, for example, bring fresh plants to the nest, which contain volatile compounds that repel parasites. There is evidence that some birds living in cities incorporate cigarette butts into their nests, but the effect (if any) of this behaviour remains unclear. Butts from smoked cigarettes retain substantial amounts of nicotine and other compounds that may also act as arthropod repellents. We provide the first evidence that smoked cigarette butts may function as a parasite repellent in urban bird nests. The amount of cellulose acetate from butts in nests of two widely distributed urban birds was negatively associated with the number of nest-dwelling parasites. Moreover, when parasites were attracted to heat traps containing smoked or non-smoked cigarette butts, fewer parasites reached the former, presumably due to the presence of nicotine. Because urbanization changes the abundance and type of resources upon which birds depend, including nesting materials and plants involved in self-medication, our results are consistent with the view that urbanization imposes new challenges on birds that are dealt with using adaptations evolved elsewhere.

Study on Tensile Fatigue Behavior of Thermal Butt Fusion in Safety Class III High-Density Polyethylene Buried Piping in Nuclear Power Plants

Energy Technology Data Exchange (ETDEWEB)

Kim, Jong Sung; Lee, Young Ju [Sunchon National University, Suncheon (Korea, Republic of); Oh, Young Jin [KEPCO E and C, Yongin (Korea, Republic of)

2015-01-15

High-density polyethylene (HDPE) piping, which has recently been applied to safety class III piping in nuclear power plants, can be butt-joined through the thermal fusion process, which heats two fused surfaces and then subject to axial pressure. The thermal fusion process generates bead shapes on the butt fusion. The stress concentrations caused by the bead shapes may reduce the fatigue lifetime. Thus, investigating the effect of the thermal butt fusion beads on fatigue behavior is necessary. This study examined the fatigue behavior of thermal butt fusion via a tensile fatigue test under stress-controlled conditions using finite element elastic stress analysis. Based on the results, the presence of thermal butt fusion beads was confirmed to reduce the fatigue lifetime in the low-cycle fatigue region while having a negligible effect in the medium- and high-cycle fatigue regions.

Study on Tensile Fatigue Behavior of Thermal Butt Fusion in Safety Class III High-Density Polyethylene Buried Piping in Nuclear Power Plants

International Nuclear Information System (INIS)

Kim, Jong Sung; Lee, Young Ju; Oh, Young Jin

2015-01-01

High-density polyethylene (HDPE) piping, which has recently been applied to safety class III piping in nuclear power plants, can be butt-joined through the thermal fusion process, which heats two fused surfaces and then subject to axial pressure. The thermal fusion process generates bead shapes on the butt fusion. The stress concentrations caused by the bead shapes may reduce the fatigue lifetime. Thus, investigating the effect of the thermal butt fusion beads on fatigue behavior is necessary. This study examined the fatigue behavior of thermal butt fusion via a tensile fatigue test under stress-controlled conditions using finite element elastic stress analysis. Based on the results, the presence of thermal butt fusion beads was confirmed to reduce the fatigue lifetime in the low-cycle fatigue region while having a negligible effect in the medium- and high-cycle fatigue regions

Ultrasonic wave propagation in real-life austenitic V-butt welds: Numerical modeling and validation

International Nuclear Information System (INIS)

Hannemann, R.; Marklein, R.; Langenberg, K. J.; Schurig, C.; Koehler, B.; Walte, F.

2000-01-01

In nondestructive testing the evaluation of austenitic steel welds with ultrasound is a commonly used method. But, since the wave propagation, scattering, and diffraction effects in such complicated media are hardly understood, computer simulations are very helpful to increase the knowledge of the physical phenomena in such samples. A particularly powerful numerical time domain modeling tool is the well established Elastodynamic Finite Integration Technique (EFIT). Recently, EFIT has been extended to simulate elastic waves in inhomogeneous anisotropic media. In this paper, the step-by-step evaluation of ultrasonic wave propagation in inhomogeneous anisotropic media will be described and the results will be validated against measurements. As a simplified model, a V-butt weld with perpendicular grain structure is investigated. The coincidence between the B Scans of the simulation and the measurement of an idealized V-butt weld is remarkable and even effects predicted by theory and simulation - the appearance of two coupled quasi-SV waves - can be observed. As a next step, an improved and more realistic model of the grain orientation inside the V-butt weld is introduced. This model has been implemented in the EFIT code and has been validated against measurements. For this verification, measured and simulated B-Scans for a real-life V-butt weld have been compared and a significant coincidence has been observed. Furthermore, the main pulses in the B-Scans are interpreted by analyzing the snapshot-movies of the wavefronts

Preliminary geologic map of the Sleeping Butte volcanic centers

International Nuclear Information System (INIS)

Crowe, B.M.; Perry, F.V.

1991-07-01

The Sleeping Butte volcanic centers comprise two, spatially separate, small-volume ( 3 ) basaltic centers. The centers were formed by mildly explosive Strombolian eruptions. The Little Black Peak cone consists of a main scoria cone, two small satellitic scoria mounds, and associated lobate lava flows that vented from sites at the base of the scoria cone. The Hidden Cone center consists of a main scoria cone that developed on the north-facing slope of Sleeping Butte. The center formed during two episodes. The first included the formation of the main scoria cone, and venting of aa lava flows from radial dikes at the northeast base of the cone. The second included eruption of scoria-fall deposits from the summit crater. The ages of the Little Black Peak and the Hidden Cone are estimated to be between 200 to 400 ka based on the whole-rock K-Ar age determinations with large analytical undertainty. This age assignment is consistent with qualitative observations of the degree of soil development and geomorphic degradation of volcanic landforms. The younger episode of the Hidden Cone is inferred to be significantly younger and probably of Late Pleistocene or Holocene age. This is based on the absence of cone slope rilling, the absence of cone-slope apron deposits, and erosional unconformity between the two episodes, the poor horizon- development of soils, and the presence of fall deposits on modern alluvial surfaces. Paleomagnetic data show that the centers record similar but not identical directions of remanent magnetization. Paleomagnetic data have not been obtained for the youngest deposits of the Hidden Cone center. Further geochronology, soils, geomorphic, and petrology studies are planned of the Sleeping Butte volcanic centers 20 refs., 3 figs

Investigation and control of factors influencing resistance upset butt welding.

NARCIS (Netherlands)

Kerstens, N.F.H.

2010-01-01

The purpose of this work is to investigate the factors influencing the resistance upset butt welding process to obtain an understanding of the metal behaviour and welding process characteristics, so that new automotive steels can be welded with reduced development time and fewer failures in

75 FR 60804 - Notice of Availability of the Final Environmental Impact Statement for the West Butte Wind Power...

Science.gov (United States)

2010-10-01

... Wind Power Right-of-Way, Crook and Deschutes Counties, OR AGENCY: Bureau of Land Management, Interior... Final Environmental Impact Statement (EIS) for the West Butte Wind Power Right-of-Way and by this Notice... Register notice. FOR FURTHER INFORMATION CONTACT: Steve Storo, BLM West Butte Wind Power Right of Way...

Geology of Pine and Crater Buttes: two basaltic constructs on the far eastern Snake River Plain

International Nuclear Information System (INIS)

Mazierski, P.F.; King, J.S.

1987-01-01

The emplacement history and petrochemical evolution of the volcanics associated with Pine Butte, Crater Butte, and other nearby vents are developed and described. Four major vents were identified in the study area and their associated eruptive products were mapped. All of the vents show a marked physical elongation or linear orientation coincident with the observed rift set. Planetary exploration has revealed the importance of volcanic processes in the genesis and modification of extraterrestrial surfaces. Interpretation of surface features has identified plains-type basaltic volcanism in various mare regions of the Moon and the volcanic provinces of Mars. Identification of these areas with features that appear analogous to those observed in the Pine Butte area suggests similar styles of eruption and mode of emplacement. Such terrestrial analogies serve as a method to interpret the evolution of volcanic planetary surfaces on the inner planets

A Methodology for the Assessment of Unconventional (Continuous) Resources with an Application to the Greater Natural Buttes Gas Field, Utah

International Nuclear Information System (INIS)

Olea, Ricardo A.; Cook, Troy A.; Coleman, James L.

2010-01-01

The Greater Natural Buttes tight natural gas field is an unconventional (continuous) accumulation in the Uinta Basin, Utah, that began production in the early 1950s from the Upper Cretaceous Mesaverde Group. Three years later, production was extended to the Eocene Wasatch Formation. With the exclusion of 1100 non-productive ('dry') wells, we estimate that the final recovery from the 2500 producing wells existing in 2007 will be about 1.7 trillion standard cubic feet (TSCF) (48.2 billion cubic meters (BCM)). The use of estimated ultimate recovery (EUR) per well is common in assessments of unconventional resources, and it is one of the main sources of information to forecast undiscovered resources. Each calculated recovery value has an associated drainage area that generally varies from well to well and that can be mathematically subdivided into elemental subareas of constant size and shape called cells. Recovery per 5-acre cells at Greater Natural Buttes shows spatial correlation; hence, statistical approaches that ignore this correlation when inferring EUR values for untested cells do not take full advantage of all the information contained in the data. More critically, resulting models do not match the style of spatial EUR fluctuations observed in nature. This study takes a new approach by applying spatial statistics to model geographical variation of cell EUR taking into account spatial correlation and the influence of fractures. We applied sequential indicator simulation to model non-productive cells, while spatial mapping of cell EUR was obtained by applying sequential Gaussian simulation to provide multiple versions of reality (realizations) having equal chances of being the correct model. For each realization, summation of EUR in cells not drained by the existing wells allowed preparation of a stochastic prediction of undiscovered resources, which range between 2.6 and 3.4 TSCF (73.6 and 96.3 BCM) with a mean of 2.9 TSCF (82.1 BCM) for Greater Natural Buttes

Et cigaretskod, en donation, en renere by: A cigarette butt, a donation, a cleaner city

OpenAIRE

Bengtsen, Monica; Patursson, Guttormur; Nedergaard, Sofie Tarpø; Madsen, Maria Chas; Drews, Anna Ørsted; Bach, Katrine Møller

2013-01-01

This project concerns an explanation of the problem of cigarette butts lying in the streets of Copenhagen. By using elements of the theory of nudging we have designed an ashtray ment to pledge smokers not to throw their butt in the streets. The design is a response to a design competition published by the municipality of Copenhagen, as an attempt to be the cleanest capital in Europe by the year 2015. The core of the design presentation is in cooperation with private firms, who have obligated ...

A Vision-Aided 3D Path Teaching Method before Narrow Butt Joint Welding.

Science.gov (United States)

Zeng, Jinle; Chang, Baohua; Du, Dong; Peng, Guodong; Chang, Shuhe; Hong, Yuxiang; Wang, Li; Shan, Jiguo

2017-05-11

For better welding quality, accurate path teaching for actuators must be achieved before welding. Due to machining errors, assembly errors, deformations, etc., the actual groove position may be different from the predetermined path. Therefore, it is significant to recognize the actual groove position using machine vision methods and perform an accurate path teaching process. However, during the teaching process of a narrow butt joint, the existing machine vision methods may fail because of poor adaptability, low resolution, and lack of 3D information. This paper proposes a 3D path teaching method for narrow butt joint welding. This method obtains two kinds of visual information nearly at the same time, namely 2D pixel coordinates of the groove in uniform lighting condition and 3D point cloud data of the workpiece surface in cross-line laser lighting condition. The 3D position and pose between the welding torch and groove can be calculated after information fusion. The image resolution can reach 12.5 μm. Experiments are carried out at an actuator speed of 2300 mm/min and groove width of less than 0.1 mm. The results show that this method is suitable for groove recognition before narrow butt joint welding and can be applied in path teaching fields of 3D complex components.

A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, Montana

Energy Technology Data Exchange (ETDEWEB)

Blackketter, Donald [Montana Tech of the Univ. of Montana, Butte, MT (United States)

2015-06-01

Executive Summary An innovative 50-ton ground-source heat pump (GSHP) system was installed to provide space heating and cooling for a 56,000 square foot (5,200 square meter) building in Butte Montana, in conjunction with its heating and chiller systems. Butte is a location with winter conditions much colder than the national average. The GSHP uses flooded mine waters at 78F (25C) as the heat source and heat sink. The heat transfer performance and efficiency of the system were analyzed using data from January through July 2014. This analysis indicated that for typical winter conditions in Butte, Montana, the GSHP could deliver about 88% of the building’s annual heating needs. Compared with a baseline natural-gas/electric system, the system demonstrated at least 69% site energy savings, 38% source energy savings, 39% carbon dioxide emissions reduction, and a savings of $17,000 per year (40%) in utility costs. Assuming a $10,000 per ton cost for installing a production system, the payback period at natural gas costs of $9.63/MMBtu and electricity costs of $0.08/kWh would be in the range of 40 to 50 years. At higher utility prices, or lower installation costs, the payback period would obviously be reduced.

Episodic Holocene eruption of the Salton Buttes rhyolites, California, from paleomagnetic, U-Th, and Ar/Ar dating

Science.gov (United States)

Wright, Heather M.; Vazquez, Jorge A.; Champion, Duane E.; Calvert, Andrew T.; Mangan, Margaret T.; Stelten, Mark E.; Cooper, Kari M.; Herzig, Charles; Schriener Jr., Alexander

2015-01-01

In the Salton Trough, CA, five rhyolite domes form the Salton Buttes: Mullet Island, Obsidian Butte, Rock Hill, North and South Red Hill, from oldest to youngest. Results presented here include 40Ar/39Ar anorthoclase ages, 238U-230Th zircon crystallization ages, and comparison of remanent paleomagnetic directions with the secular variation curve, which indicate that all domes are Holocene. 238U-230Th zircon crystallization ages are more precise than but within uncertainty of 40Ar/39Ar anorthoclase ages, suggesting that zircon crystallization proceeded until shortly before eruption in all cases except one. Remanent paleomagnetic directions require three eruption periods: (1) Mullet Island, (2) Obsidian Butte, and (3) Rock Hill, North Red Hill, and South Red Hill. Borehole cuttings logs document up to two shallow tephra layers. North and South Red Hills likely erupted within 100 years of each other, with a combined 238U-230Th zircon isochron age of: 2.83 ± 0.60 ka (2 sigma); paleomagnetic evidence suggests this age predates eruption by hundreds of years (1800 cal BP). Rock Hill erupted closely in time to these eruptions. The Obsidian Butte 238U-230Th isochron age (2.86 ± 0.96 ka) is nearly identical to the combined Red Hill age, but its Virtual Geomagnetic Pole position suggests a slightly older age. The age of aphyric Mullet Island dome is the least well constrained: zircon crystals are resorbed and the paleomagnetic direction is most distinct; possible Mullet Island ages include ca. 2300, 5900, 6900, and 7700 cal BP. Our results constrain the duration of Salton Buttes volcanism to between ca. 5900 and 500 years.

The geology of Pine and Crater Buttes: Two basaltic constructs on the far eastern Snake River Plain

Science.gov (United States)

Mazierski, Paul F.; King, John S.

1987-01-01

The emplacement history and petrochemical evolution of the volcanics associated with Pine Butte, Crater Butte, and other nearby vents are developed and described. Four major vents were identified in the study area and their associated eruptive products were mapped. All of the vents show a marked physical elongation or linear orientation coincident with the observed rift set. Planetary exploration has revealed the importance of volcanic processes in the genesis and modification of extraterrestrial surfaces. Interpretation of surface features has identified plains-type basaltic volcanism in various mare regions of the Moon and the volcanic provinces of Mars. Identification of these areas with features that appear analogous to those observed in the Pine Butte area suggests similar styles of eruption and mode of emplacement. Such terrestrial analogies serve as a method to interpret the evolution of volcanic planetary surfaces on the inner planets.

A Semi-analytical model for creep life prediction of butt-welded joints in cylindrical vessels

International Nuclear Information System (INIS)

Zarrabi, K.

2001-01-01

There have been many investigations on the life assessment of high temperature weldments used in cylindrical pressure vessels, pipes and tubes over the last two decades or so. But to the author's knowledge, currently, there exists no practical, economical and relatively accurate model for creep life assessment of butt-welded joints in cylindrical pressure vessels. This paper describes a semi-analytical and economical model for creep life assessment of butt-welded joints. The first stage of the development of the model is described where the model takes into account the material discontinuities at the welded joint only. The development of the model to include other factors such as geometrical stress concentrations, residual stresses, etc will be reported separately. It has been shown that the proposed model can estimate the redistributions of stresses in the weld and Haz with an error of less than 4%. It has also been shown that the proposed model can conservatively predict the creep life of a butt-welded joint with an error of less than 16%

Sleep Patterns and Academic Performance during Preparation for College Entrance Exam in Chinese Adolescents

Science.gov (United States)

Wang, Guanghai; Ren, Fen; Liu, Zhijun; Xu, Guangxing; Jiang, Fan; Skora, Elizabeth; Lewin, Daniel S.

2016-01-01

Background: Deficient sleep is linked to detrimental outcomes in health and school performance for adolescents. This study characterized sleep patterns in Chinese adolescents preparing for the College Entrance Exam (CEE) and evaluated the association between sleep patterns, self-rated academic performance, and the CEE scores. Methods: A sample of…

Preparation for College and Careers. Research Summary

Science.gov (United States)

Philadelphia Youth Network, 2009

2009-01-01

The financial benefits of a college degree are clear. Philadelphians with 1-3 years of college earn a third more than high school graduates over a working lifetime, and four-year degree-holders earn twice as much. Furthermore, college-goers contribute substantially more in tax revenues to support services provided through local, state and federal…

An Exploration of the Preparation and Organization of Teaching Practice Exercise to Prospective Science and Mathematics Teachers toward Improving Teaching Profession at Morogoro Teachers' College

Science.gov (United States)

Mungure, Daudi Mika

2016-01-01

This paper explored the preparation and organization of teaching practice exercise to prospective science and mathematics teachers in Tanzania teachers college specifically Morogoro Teachers' College toward improving teaching profession. Due to the challenges stated by different scholars on preparation and organization of teaching practice…

Modeling and control of a DC upset resistance butt welding process

NARCIS (Netherlands)

Naus, G.J.L.; Meulenberg, R.; Molengraft, van de M.J.G.

2007-01-01

This paper presents the analysis and synthesis of modeling and control of the DC upset resistance butt welding process used in rim production lines. A new control strategy is developed, enabling active control of the welding seam temperature and the upset size. As a result, set-up times and energy

A new method to butt weld pipes with laser at different angles

International Nuclear Information System (INIS)

Gualini, M.M.S.

1999-01-01

Laser butt welding of pipes at different angles may be cumbersome and may require very expensive tooling. The pipe size may not allow using the laser for large volume throughputs. We propose a rotary optical head composed by an adjustable focus lens system and two reflecting mirrors. The laser beam is bent at 90 deg. C. so that weld can be performed inwards outwards. The optic head design compensates the rotary backlash and vibrations, like a penta prism thus ensuring a perfect follow up of the weld track. The optic head can be inclined at 45 deg. C. to laser butt weld pipe each other at 90 deg. C. In this case the laser beam focus position is computer controlled in order to keep the focus point always on the elliptical weld profile. The paper covers theoretical and practical aspects of the proposed device. (author)

Teacher's Guide to Architectural Styles. Skinner's Butte Historical District. Revised Edition.

Science.gov (United States)

Bauer, Mary; Neimand, Hahn

This document is a teacher's guide to the historic buildings of Eugene, Oregon. Eighteen buildings in the Skinner's Butte Historical District are highlighted, including the U.S. Post Office, the Eagles Building, the Lane Hotel, the Oregon Electric Depot, the Southern Pacific Railroad Depot, and several houses. For each structure there is a brief…

Vision and spectroscopic sensing for joint tracing in narrow gap laser butt welding

Science.gov (United States)

Nilsen, Morgan; Sikström, Fredrik; Christiansson, Anna-Karin; Ancona, Antonio

2017-11-01

The automated laser beam butt welding process is sensitive to positioning the laser beam with respect to the joint because a small offset may result in detrimental lack of sidewall fusion. This problem is even more pronounced in case of narrow gap butt welding, where most of the commercial automatic joint tracing systems fail to detect the exact position and size of the gap. In this work, a dual vision and spectroscopic sensing approach is proposed to trace narrow gap butt joints during laser welding. The system consists of a camera with suitable illumination and matched optical filters and a fast miniature spectrometer. An image processing algorithm of the camera recordings has been developed in order to estimate the laser spot position relative to the joint position. The spectral emissions from the laser induced plasma plume have been acquired by the spectrometer, and based on the measurements of the intensities of selected lines of the spectrum, the electron temperature signal has been calculated and correlated to variations of process conditions. The individual performances of these two systems have been experimentally investigated and evaluated offline by data from several welding experiments, where artificial abrupt as well as gradual deviations of the laser beam out of the joint were produced. Results indicate that a combination of the information provided by the vision and spectroscopic systems is beneficial for development of a hybrid sensing system for joint tracing.

FIRE HAZARDS ANALYSIS - BUSTED BUTTE

International Nuclear Information System (INIS)

Longwell, R.; Keifer, J.; Goodin, S.

2001-01-01

The purpose of this fire hazards analysis (FHA) is to assess the risk from fire within individual fire areas at the Busted Butte Test Facility and to ascertain whether the DOE fire safety objectives are met. The objective, identified in DOE Order 420.1, Section 4.2, is to establish requirements for a comprehensive fire and related hazards protection program for facilities sufficient to minimize the potential for: (1) The occurrence of a fire related event. (2) A fire that causes an unacceptable on-site or off-site release of hazardous or radiological material that will threaten the health and safety of employees. (3) Vital DOE programs suffering unacceptable interruptions as a result of fire and related hazards. (4) Property losses from a fire and related events exceeding limits established by DOE. Critical process controls and safety class systems being damaged as a result of a fire and related events

Evaluation of Achievement, Self-Esteem, Depression and Anxiety Levels in Children who Preparing for College Examination

Directory of Open Access Journals (Sweden)

Cemaliye DIREKTOR

2017-12-01

Full Text Available The aim of this study was to investigate the relationship between academic achievement, self-esteem, depression and state-trial anxiety of children who were preparing for college examination. 285 students who were preparing for college examination were recruited in Northern Cyprus. All data were obtained by using Sociodemographical Questionnaire, Rosenberg Self-Esteem Inventory for Children, Childhood Depression Inventory, State and Trait Anxiety Inventory, during 15-23 October 2016. It has been found that male students have a higher academic achievement and self-esteem levels than female students’. There was a significant negative correlation between students’ self-esteem and depression levels. Results showed that self-esteem and depression predicted academic achievement. Also on the area of child education, extensive studies should be carried out on examination, how the national examinations affect psychological problems. Obtained results were discussed in the light of literature

An Investigation of the Teaching Approach Used by Tutors to Prepare Science and Mathematics Teachers during Training at Morogoro Teachers' College

Science.gov (United States)

Mungure, Daudi Mika

2017-01-01

This paper investigated the teaching approach used by tutors to prepare science and mathematics teachers during training at Morogoro teachers' college. For six years consecutive the performance of science and mathematics in secondary school has become very poor even though the training colleges produce science and mathematics teachers every year…

The role of physics departments in the recruitment, preparation and support of pre-college teachers of physics

Science.gov (United States)

Seeley, Lane

2008-05-01

The United States faces a critical shortage of qualified physics and physical science teachers. The number of high school students taking physics is increasing but the number of physics majors pursuing careers in pre-college teaching is not nearly sufficient to meet the demand. College and university physics departments have content expertise and ready access to potential future teachers of physics. In order to address the crisis in physics and physical science education, APS, AAPT, and AIP have developed the PhysTEC project. Seattle Pacific University is one of six fully funded PhysTEC sites. The PhysTEC project also supports a coalition of more than one hundred institutions that are committed to improving K-12 physics and physical science education. This talk will describe the national PhysTEC project along with our local PhysTEC program. We will explore ways in which physics departments can more fully integrate the preparation of pre-college physics teachers within existing departmental priorities. We will discuss opportunities for regional partnerships between 2-year and 4-year colleges, school districts, and teacher preparation programs. We will also highlight ways in which our research on the learning and teaching of physics informs the development of tools that teachers and teacher educators can use to diagnose student ideas and to design subsequent instruction that capitalizes on these ideas. In collaboration with Stamatis Vokos, Seattle Pacific University and Pam Kraus, Facet Innovations LLC.

Toolkit for US colleges/schools of pharmacy to prepare learners for careers in academia.

Science.gov (United States)

Haines, Seena L; Summa, Maria A; Peeters, Michael J; Dy-Boarman, Eliza A; Boyle, Jaclyn A; Clifford, Kalin M; Willson, Megan N

2017-09-01

The objective of this article is to provide an academic toolkit for use by colleges/schools of pharmacy to prepare student pharmacists/residents for academic careers. Through the American Association of Colleges of Pharmac (AACP) Section of Pharmacy Practice, the Student Resident Engagement Task Force (SRETF) collated teaching materials used by colleges/schools of pharmacy from a previously reported national survey. The SRETF developed a toolkit for student pharmacists/residents interested in academic pharmacy. Eighteen institutions provided materials; five provided materials describing didactic coursework; over fifteen provided materials for an academia-focused Advanced Pharmacy Practice Experiences (APPE), while one provided materials for an APPE teaching-research elective. SRETF members created a syllabus template and sample lesson plan by integrating submitted resources. Submissions still needed to complete the toolkit include examples of curricular tracks and certificate programs. Pharmacy faculty vacancies still exist in pharmacy education. Engaging student pharmacists/residents about academia pillars of teaching, scholarship and service is critical for the future success of the academy. Published by Elsevier Inc.

A Neural Network Approach for GMA Butt Joint Welding

DEFF Research Database (Denmark)

Christensen, Kim Hardam; Sørensen, Torben

2003-01-01

This paper describes the application of the neural network technology for gas metal arc welding (GMAW) control. A system has been developed for modeling and online adjustment of welding parameters, appropriate to guarantee a certain degree of quality in the field of butt joint welding with full...... penetration, when the gap width is varying during the welding process. The process modeling to facilitate the mapping from joint geometry and reference weld quality to significant welding parameters has been based on a multi-layer feed-forward network. The Levenberg-Marquardt algorithm for non-linear least...

A Neural Network Approach for GMA Butt Joint Welding

DEFF Research Database (Denmark)

Christensen, Kim Hardam; Sørensen, Torben

2003-01-01

penetration, when the gap width is varying during the welding process. The process modeling to facilitate the mapping from joint geometry and reference weld quality to significant welding parameters has been based on a multi-layer feed-forward network. The Levenberg-Marquardt algorithm for non-linear least......This paper describes the application of the neural network technology for gas metal arc welding (GMAW) control. A system has been developed for modeling and online adjustment of welding parameters, appropriate to guarantee a certain degree of quality in the field of butt joint welding with full...

Investigation and control of factors influencing resistance upset butt welding.

OpenAIRE

Kerstens, N.F.H.

2010-01-01

The purpose of this work is to investigate the factors influencing the resistance upset butt welding process to obtain an understanding of the metal behaviour and welding process characteristics, so that new automotive steels can be welded with reduced development time and fewer failures in production. In principle the welding process is rather simple, the materials to be joined are clamped between two electrodes and pressed together. Because there is an interface present with a higher resist...

Summary of investigations of uranium deposits in the Pumpkin Buttes area, Johnson and Campbell Counties, Wyoming

Science.gov (United States)

Troyer, Max L.; McKay, Edward J.; Soister, Paul E.; Wallace, Stewart R.

1954-01-01

Uranium minerals were discovered in the Pumpkin Buttes area, Campbell and Johnson Counties, Wyo., by the U. S. Geological Survey in October 1951. From June to November 1952, an area of about 750 square miles was examined for uranium deposits, and 211 localities having abnormally high radioactivity were found; uranium minerals are visible at 121 of these localities. All known uranium mineralization in the area is restricted to sandstones of the Wasatch formation, except sparsely disseminated uranium in the sandstone of the White River formation, which caps the Pumpkin Buttes, mid several localities on the Great Pine Ridge southwest of the Pumpkin Buttes where iron-saturated sandstone and clinker in the Fort Union formation have above-normal radioactivity. The uranium occurrences in the Wasatch formation are in a red sandstone zone 450 to 900 feet above the base of the formation and are of two types: small concretionary masses of uranium, iron, manganese and vanadium minerals in sandstone, and irregular zones in which uranium minerals are disseminated in sandstone. The second type is usually larger but of lower grade than the first. Most of the localities at which uranium occurs are in a north-trending belt about 60 miles long and 18 miles in maximum width.

Characterizing butt-rot fungi on USA-affiliated islands in the western Pacific

Science.gov (United States)

Phil Cannon; Ned B. Klopfenstein; Robert L. Schlub; Mee-Sook Kim; Yuko Ota; Norio Sahashi; Roland J. Quitugua; John W. Hanna; Amy L. Ross-Davis; J. D. Sweeney

2014-01-01

Ganoderma and Phellinus are genera that commonly cause tree butt-rot on USA-affiliated islands of the western Pacific. These fungal genera can be quite prevalent, especially in older mangrove stands. Although the majority of infections caused by these fungi lead to severe rotting of the heartwood, they typically do not directly kill the living tissues of the sapwood,...

A Study on the compensation margin on butt welding joint of Large Steel plates during Shipbuilding construction

International Nuclear Information System (INIS)

Kim, J; Jeong, K; Chung, H; Jeong, H; Ji, M; Yun, C; Lee, J

2015-01-01

This paper examines the characteristics of butt welding joint shrinkage for shipbuilding and marine structures main plate. The shrinkage strain of butt welding joint which is caused by the process of heat input and cooling, results in the difference between dimensions of the actual parent metal and the dimensions of design. This, in turn, leads to poor quality in the production of ship blocks and reworking through period of correction brings about impediment on improvement of productivity. Through experiments on butt welding joint's shrinkage strain on large structures main plate, the deformation of welding residual stress in the form of I, Y, V was obtained. In addition, the results of experiments indicate that there is limited range of shrinkage in the range of 1 ∼ 2 mm in 11t ∼ 21.5t thickness and the effect of heat transfer of weld appears to be limited within 1000 mm based on one side of seam line so there was limited impact of weight of parent metal on the shrinkage. Finally, it has been learned that Shrinkage margin needs to be applied differently based on groove phenomenon in the design phase in order to minimize shrinkage. (paper)

How Prepared Are America's Colleges and Universities for Major Crises? Assessing the State of Crisis Management

Science.gov (United States)

Mitroff, Ian I.; Diamond, Michael A.; Alpaslan, Murat C.

2006-01-01

This article outlines a set of recommendations to college and university leaders and governing bodies on how to develop crisis-management systems to ensure that their institutions are as well prepared as possible for a wide range of crises. These recommendations are based, in part, on crisis-management programs developed for various business…

Can Low-Cost Online Summer Math Programs Improve Student Preparation for College-Level Math? Evidence from Randomized Experiments at Three Universities

Science.gov (United States)

Chingos, Matthew M.; Griffiths, Rebecca J.; Mulhern, Christine

2017-01-01

Every year many students enter college without the math preparation needed to succeed in their desired programs of study. Many of these students struggle to catch up, especially those who are required to take remedial math courses before entering college-level math. Increasing the number of students who begin at the appropriate level of math has…

Metal loading in Soda Butte Creek upstream of Yellowstone National Park, Montana and Wyoming; a retrospective analysis of previous research; and quantification of metal loading, August 1999

Science.gov (United States)

Boughton, G.K.

2001-01-01

Acid drainage from historic mining activities has affected the water quality and aquatic biota of Soda Butte Creek upstream of Yellowstone National Park. Numerous investigations focusing on metals contamination have been conducted in the Soda Butte Creek basin, but interpretations of how metals contamination is currently impacting Soda Butte Creek differ greatly. A retrospective analysis of previous research on metal loading in Soda Butte Creek was completed to provide summaries of studies pertinent to metal loading in Soda Butte Creek and to identify data gaps warranting further investigation. Identification and quantification of the sources of metal loading to Soda Butte Creek was recognized as a significant data gap. The McLaren Mine tailings impoundment and mill site has long been identified as a source of metals but its contribution relative to the total metal load entering Yellowstone National Park was unknown. A tracer-injection and synoptic-sampling study was designed to determine metal loads upstream of Yellowstone National Park.A tracer-injection and synoptic-sampling study was conducted on an 8,511-meter reach of Soda Butte Creek from upstream of the McLaren Mine tailings impoundment and mill site downstream to the Yellowstone National Park boundary in August 1999. Synoptic-sampling sites were selected to divide the creek into discrete segments. A lithium bromide tracer was injected continuously into Soda Butte Creek for 24.5 hours. Downstream dilution of the tracer and current-meter measurements were used to calculate the stream discharge. Stream discharge values, combined with constituent concentrations obtained by synoptic sampling, were used to quantify constituent loading in each segment of Soda Butte Creek.Loads were calculated for dissolved calcium, silica, and sulfate, as well as for dissolved and total-recoverable iron, aluminum, and manganese. Loads were not calculated for cadmium, copper, lead, and zinc because these elements were infrequently

Seizing the Future: How Ohio's Career-Technical Education Programs Fuse Academic Rigor and Real-World Experiences to Prepare Students for College and Careers

Science.gov (United States)

Guarino, Heidi; Yoder, Shaun

2015-01-01

"Seizing the Future: How Ohio's Career and Technical Education Programs Fuse Academic Rigor and Real-World Experiences to Prepare Students for College and Work," demonstrates Ohio's progress in developing strong policies for career and technical education (CTE) programs to promote rigor, including college- and career-ready graduation…

78 FR 21540 - Revisions to the California State Implementation Plan, Butte County Air Quality Management...

Science.gov (United States)

2013-04-11

... the California State Implementation Plan, Butte County Air Quality Management District and Sacramento Metropolitan Air Quality Management District AGENCY: Environmental Protection Agency (EPA). ACTION: Direct... Quality Management District (BCAQMD) and Sacramento Metropolitan Air Quality Management District (SMAQMD...

Academic achievement in first-year Portuguese college students: the role of academic preparation and learning strategies.

Science.gov (United States)

Soares, Ana Paula; Guisande, Adelina M; Almeida, Leandro S; Páramo, Fernanda M

2009-06-01

This paper analyses the role of academic preparation and learning strategies in the prediction of first-year Portuguese college students' academic achievement, considering students' sex and academic field attended. A sample of 445 first-year college students (68.5% female) from the University of Minho (25.8% enrolled in economics, 35.3% in science/technology, and 38.9% in humanities degrees) participated in the study. Students answered a questionnaire on learning strategies in the classroom at the end of the first semester, which consisted of 44 items organized in five dimensions: comprehensive approach, surface approach, personal competency perceptions, intrinsic motivation, and organization of study activities. Academic achievement (grade point average at the end of first year) and academic preparation (students' higher education access mark) were obtained through the academic records of the university. Results showed that academic preparation was the strongest predictor of first-year academic achievement, and only marginal additional variance was explained by learning strategies as assessed by the self-reported questionnaire. There were sex and academic field differences, but these variables do not seem strong enough to affect the results, although the different percentages of variance captured by each model and the different weights associated to higher education access mark, stimulate the use of these and/or other personal and contextual variables when analysing the phenomenon.

The microstructure of aluminum A5083 butt joint by friction stir welding

International Nuclear Information System (INIS)

Jasri, M. A. H. M.; Afendi, M.; Ismail, A.; Ishak, M.

2015-01-01

This study presents the microstructure of the aluminum A5083 butt joint surface after it has been joined by friction stir welding (FSW) process. The FSW process is a unique welding method because it will not change the chemical properties of the welded metals. In this study, MILKO 37 milling machine was modified to run FSW process on 4 mm plate of aluminum A5083 butt joint. For the experiment, variables of travel speed and tool rotational speed based on capability of machine were used to run FSW process. The concentrated heat from the tool to the aluminum plate changes the plate form from solid to plastic state. Two aluminum plates is merged to become one plate during plastic state and return to solid when concentrated heat is gradually further away. After that, the surface and cross section of the welded aluminum were investigated with a microscope by 400 x multiplication zoom. The welding defect in the FSW aluminum was identified. Then, the result was compared to the American Welding Society (AWS) FSW standard to decide whether the plate can be accepted or rejected

The microstructure of aluminum A5083 butt joint by friction stir welding

Energy Technology Data Exchange (ETDEWEB)

Jasri, M. A. H. M.; Afendi, M. [School of Mechatronic Engineering, Universiti Malaysia Perlis, Pauh, 02600, Arau, Perlis (Malaysia); Ismail, A. [UniKL MIMET, JalanPantaiRemis, 32200, Lumut, Perak (Malaysia); Ishak, M. [Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 02600, Pekan, Pahang (Malaysia)

2015-05-15

This study presents the microstructure of the aluminum A5083 butt joint surface after it has been joined by friction stir welding (FSW) process. The FSW process is a unique welding method because it will not change the chemical properties of the welded metals. In this study, MILKO 37 milling machine was modified to run FSW process on 4 mm plate of aluminum A5083 butt joint. For the experiment, variables of travel speed and tool rotational speed based on capability of machine were used to run FSW process. The concentrated heat from the tool to the aluminum plate changes the plate form from solid to plastic state. Two aluminum plates is merged to become one plate during plastic state and return to solid when concentrated heat is gradually further away. After that, the surface and cross section of the welded aluminum were investigated with a microscope by 400 x multiplication zoom. The welding defect in the FSW aluminum was identified. Then, the result was compared to the American Welding Society (AWS) FSW standard to decide whether the plate can be accepted or rejected.

Stress Distribution in the Dissimilar Metal Butt Weld of Nuclear Reactor Piping due to the Simulation Technique for the Repair Welding

International Nuclear Information System (INIS)

Lee, Hweeseung; Huh, Namsu; Kim, Jinsu; Lee, Jinho

2013-01-01

During welding, the dissimilar metal butt welds of nuclear piping are typically subjected to repair welding in order to eliminate defects that are found during post-weld inspection. It has been found that the repair weld can significantly increase the tensile residual stress in the weldment, and therefore, accurate estimation of the weld residual stress due to repair weld, especially for dissimilar metal welds using Ni-based alloy 82/182 in nuclear components, is of great importance in order to assess susceptibility to primary water stress corrosion cracking. In the present study, the stress distributions of dissimilar metal butt welds in nuclear reactor piping subjected to repair weld were investigated based on detailed nonlinear finite element analyses. Particular emphasis was placed on the variation of the stress distribution in the dissimilar metal butt weld according to the finite element welding analysis sequence for the repair welding process

Asilomar Leadership Skills Seminar: The Career Preparation, Advancement, and Enhancement of Women in California Community College Leadership

Science.gov (United States)

Castillo-Garrison, Estella M.

2012-01-01

This mixed-methods research study examined the effects on the career preparation, advancement, and enhancement of women from California community college leadership who participated in the Asilomar Leadership Skills Seminar (Asilomar) from 2005-2011. Data were collected during the 2011-2012 academic year and were gathered from the results of 67…

Increased self-efficacy for vegetable preparation following an online, skill-based intervention and in-class tasting experience as a part of a general education college nutrition course.

Science.gov (United States)

Brown, Katie N; Wengreen, Heidi J; Vitale, Tamara S; Anderson, Janet B

2011-01-01

Assess the effectiveness of the integration of vegetable demonstration videos and tasting experiences into a college nutrition course to influence students' readiness to change vegetable intake, self-efficacy for vegetable preparation, and usual vegetable intake. Quasiexperimental, preintervention-postintervention comparisons. College nutrition course. Of the 376 students enrolled in the course, 186 completed the online assessments (145 female, 41 male; mean age, 20 years). Participants viewed online vegetable preparation videos and participated in vegetable tasting experiences that featured four target vegetables, one vegetable each month for 4 months. Preintervention and postintervention online surveys determined usual vegetable intake, readiness to change vegetable consumption, and self-efficacy of vegetable preparation. Chi-square distribution and paired sample t-tests were used to examine differences preintervention and postintervention. Stage of readiness to change vegetable intake shifted from contemplation toward preparation (p Online vegetable demonstration videos may be an effective and cost-efficient intervention for increasing self-efficacy of vegetable preparation and readiness to increase vegetable consumption among college students. More research is needed to determine long-term effects on vegetable consumption.

Age of the middle Palaeolithic site of La Butte d'Arvigny (Moissy-Cramayel, Seine-et-Marne); Datation du site paleolithique moyen de la Butte d'Arvigny (Moissy-Cramayel, Seine-et-Marne)

Energy Technology Data Exchange (ETDEWEB)

Laurent, M. [Ecole Nationale Superieure de Chimie, Lab. de Travaux Pratiques de Genie Chimique, 75 - Paris (France); Laurent, M.; Bahain, J.J.; Voinchet, P.; Ricard, J.L. [Lab. de Prehistoire du Museum National d' Histoire Naturelle, Institut de Paleontologie Humaine, UMR 6569 du CNRS, 75 - Paris (France); Rousseau, L. [Amiens Univ., Lab. de Sedimentologie et de Geochimie, 80 (France)

2000-04-01

The middle Palaeolithic site of La Butte d'Arvigny, close to Melun, was dated using electron spin resonance (ESR) method on burn flint. Five analysed burnt flints give a mean age of 90 000 years, which ascribes Arvigny to the Mousterian laminar complex of northern France. (authors)

Observations of elk movement patterns on Fossil Butte National Monument

Science.gov (United States)

Olexa, Edward M.; Soileau, Suzanna Carrithers.; Allen, Leslie A.

2014-01-01

The elk herd that frequents Fossil Butte National Monument, a subset of the West Green River elk population, provides visitors with seasonal opportunities to view an iconic species of the western United States. Throughout the year, these elk range across a variety of private, State, and Federal lands within close proximity to the Monument. These lands are managed differently for various uses which can create challenging wildlife-management issues and influence the herd’s seasonal movements and distribution. Research lead by the USGS investigates some of the factors associated with these seasonal changes.

TIG-dressing of High Strength Butt Welded Connection. Part 2 : Physical Testing and Modelling

NARCIS (Netherlands)

Van Es, S.H.J.; Kolstein, M.H.; Pijpers, R.J.M.; Bijlaard, F.S.K.

2014-01-01

Weld improvement techniques are aimed at reducing the notch effects of welds and generally focus on two aspects: a change of geometry of the weld toe and a change of the weld residual stresses. In this paper, fatigue tests are discussed, performed on butt welded specimens in steel grades ranging

TIG-dressing of high strength butt welded connection - Part 2: physical testing and modelling

NARCIS (Netherlands)

Es, S.H.J. van; Kolstein, M.H.; Pijpers, R.J.M.; Bijlaard, F.S.K.

2013-01-01

Weld improvement techniques are aimed at reducing the notch effects of welds and generally focus on two aspects: a change of geometry of the weld toe and a change of the weld residual stresses. In this paper, fatigue tests are discussed, performed on butt welded specimens in steel grades ranging

Use of pulsed arc welding for butt joint fabrication

International Nuclear Information System (INIS)

Merkulov, B.A.

1977-01-01

A technology of pulsed-arc butt welding with periodic wire feed to the welding zone has been developed. The pulsed arc is suitable both for submerged and gas-shielded weldings. The technology proposed has some advantages over the stationary-arc welding. Control of the amplitude-frequency characteristics of the process enables one to affect melting and crystallization conditions of the welding crater, weld shape, relation between melting and deposited metal section areas, etc., as well as to reduce heat contribution to the base metal. The new process is shown to be applicable in power engineering. Automatic submerged welding conditions are given for low-carbon and pearlitic heat-resistant steels

California State Implementation Plan; Butte County Air Quality Management District; New Source Review (NSR) Permitting Program

Science.gov (United States)

EPA is proposing to approve a revision to the Butte County Air Quality Management District (BCAQMD) portion of the California SIP concerning the District's New Source Review (NSR) permitting program for new and modified sources of air pollution.

Effect of the weld groove shape and pass number on residual stresses in butt-welded pipes

International Nuclear Information System (INIS)

Sattari-Far, I.; Farahani, M.R.

2009-01-01

This study used finite element techniques to analyze the thermo-mechanical behaviour and residual stresses in butt-welded pipes. The residual stresses were also measured in some welds by using the Hole-Drilling method. The results of the finite element analysis were compared with experimentally measured data to evaluate the accuracy of the finite element modelling. Based on this study, a finite element modelling procedure with reasonable accuracy was developed. The developed FE modelling was used to study the effects of weld groove shape and weld pass number on welding residual stresses in butt-welded pipes. The hoop and axial residual stresses in pipe joints of 6 and 10 mm thickness of different groove shapes and pass number were studied. It is shown that these two parameters may have significant effects on magnitude and distribution of residual stresses in welded pipes.

Moving from College Aspiration to Attainment: Learning from One College Access Program

Science.gov (United States)

Dyce, Cherrel Miller; Albold, Cheryll; Long, Deborah

2013-01-01

Using data from a survey of 75 parents and high school students who were eligible for a college access program, this article examines parents' and students' college aspirations and their confidence in fulfilling that goal. The authors argue that pre-college preparation programs can benefit from the non-economic forms of capital that these families…

Wrought stainless steel butt-welding fittings: including reference to other corrosion resistant materials - approved 1971

International Nuclear Information System (INIS)

Anon.

1975-01-01

ANSI B16.9 is the American Standard for steel butt-welding fittings and although not so stated, it is implied that its scope deals primarily with the schedules of wall thicknesses which are common to carbon steel and the grades of alloy steel piping that are selected for pressure and temperature considerations. The purpose of this standard is to provide industry with a set of dimensional standards for butt-welding fittings that can be used with these light wall pipes of corrosion resisting materials. The center-to-end dimensions of all fittings are identical with those in ANSI B16.9 which give to industry the advantage of uniform design room practice and a maximum utilization of existing die equipment. The only departure from this is in the lap-joint stub end where for purposes of economy the face-to-end of the product has been reduced for use with thin wall piping

77 FR 18266 - Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines; Revised...

Science.gov (United States)

2012-03-27

... INTERNATIONAL TRADE COMMISSION [Investigation Nos. 731-TA-865-867 (Second Review)] Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines; Revised Schedule for the Subject Reviews AGENCY: United States International Trade Commission. ACTION: Notice. DATES: Effective Date: March...

Butt Weldability for SS400 Using Laser-Arc Hybrid Welding

International Nuclear Information System (INIS)

Kim, Jong Do; Myoung, Gi Hoon; Park, Duck; Myoung, Gi Hoon; Park, In Duck

2016-01-01

This study presents results of an experimental investigation of the laser-arc, hybrid, butt welding process of SS400 structural steel. Welding parameters including laser power, welding current and speed were varied in order to obtain one-pass, full-penetration welds without defects. The conditions that resulted in optimal beads were identified. After welding, hardness measurements and microstructure observations were carried out in order to study weld properties. The mechanical properties of both the base material and welded specimen were compared based on the results of tensile strength measurements. The yield and tensile strengths were found to be similar

Butt Weldability for SS400 Using Laser-Arc Hybrid Welding

Energy Technology Data Exchange (ETDEWEB)

Kim, Jong Do; Myoung, Gi Hoon; Park, Duck [Korea Maritime and Ocean Univ., Busan (Korea, Republic of); Myoung, Gi Hoon; Park, In Duck [Korea Institute of Machinery and Materials, Busan (Korea, Republic of)

2016-07-15

This study presents results of an experimental investigation of the laser-arc, hybrid, butt welding process of SS400 structural steel. Welding parameters including laser power, welding current and speed were varied in order to obtain one-pass, full-penetration welds without defects. The conditions that resulted in optimal beads were identified. After welding, hardness measurements and microstructure observations were carried out in order to study weld properties. The mechanical properties of both the base material and welded specimen were compared based on the results of tensile strength measurements. The yield and tensile strengths were found to be similar.

BUSTED BUTTE TEST FACILITY GROUND SUPPORT CONFIRMATION ANALYSIS

International Nuclear Information System (INIS)

Bonabian, S.

1998-01-01

The main purpose and objective of this analysis is to confirm the validity of the ground support design for Busted Butte Test Facility (BBTF). The highwall stability and adequacy of highwall and tunnel ground support is addressed in this analysis. The design of the BBTF including the ground support system was performed in a separate document (Reference 5.3). Both in situ and seismic loads are considered in the evaluation of the highwall and the tunnel ground support system. In this analysis only the ground support designed in Reference 5.3 is addressed. The additional ground support installed (still work in progress) by the constructor is not addressed in this analysis. This additional ground support was evaluated by the A/E during a site visit and its findings and recommendations are addressed in this analysis

California Air Quality State Implementation Plans; Final Approval; Butte County Air Quality Management District; Stationary Source Permits

Science.gov (United States)

EPA is taking final action to approve a revision to the Butte County Air Quality Management District (BCAQMD) portion of the California State Implementation Plan (SIP). This revision concerns the District's New Source Review (NSR) permitting program.

The Significance of Family, Environment, and College Preparation: A Study of Factors Influencing Graduation and Persistence Rates of African American Males Playing Division I Basketball

Science.gov (United States)

Mitchell, Enzley, IV

2017-01-01

The purpose of this study was to identify specific external factors including family composition, pre-college environment, and college preparation that contribute to why some African American males playing basketball at the NCAA Division I level graduate and persist while others do not. Despite an aggressive advertising campaign from the NCAA…

Expanding the Role of Maryland Community Colleges in K-12 Teacher Preparation: Benefits and Costs of Implementing the Associate of Arts in Teaching (AAT) Degree

Science.gov (United States)

Frank, Jennifer Vest

2012-01-01

This study uses benefit-cost analysis to compare three alternative scenarios for implementing the Associate of Arts in Teaching (AAT) degree in Maryland community colleges. The first policy scenario is that community colleges retain their traditional role in K-12 teacher preparation by providing lower-division transfer courses and programs for…

Age of the middle Palaeolithic site of La Butte d'Arvigny (Moissy-Cramayel, Seine-et-Marne)

International Nuclear Information System (INIS)

Laurent, M.; Laurent, M.; Bahain, J.J.; Voinchet, P.; Ricard, J.L.; Rousseau, L.

2000-01-01

The middle Palaeolithic site of La Butte d'Arvigny, close to Melun, was dated using electron spin resonance (ESR) method on burn flint. Five analysed burnt flints give a mean age of 90 000 years, which ascribes Arvigny to the Mousterian laminar complex of northern France. (authors)

76 FR 5205 - Carbon Steel Butt-Weld Pipe Fittings from Brazil, China, Japan, Taiwan, and Thailand

Science.gov (United States)

2011-01-28

...)] Carbon Steel Butt-Weld Pipe Fittings from Brazil, China, Japan, Taiwan, and Thailand AGENCY: United... Thailand. SUMMARY: The Commission hereby gives notice of the scheduling of expedited reviews pursuant to..., Taiwan, and Thailand would be likely to lead to continuation or recurrence of material injury within a...

75 FR 60814 - Carbon Steel Butt-Weld Pipe Fittings From Brazil, China, Japan, Taiwan, and Thailand

Science.gov (United States)

2010-10-01

...)] Carbon Steel Butt-Weld Pipe Fittings From Brazil, China, Japan, Taiwan, and Thailand AGENCY: United... Thailand. SUMMARY: The Commission hereby gives notice that it has instituted reviews pursuant to section... Thailand would be likely to lead to continuation or recurrence of material injury. Pursuant to section 751...

Supplemental Instruction: The Effect of Demographic and Academic Preparation Variables on Community College Student Academic Achievement in STEM-Related Fields

Science.gov (United States)

Rabitoy, Eric R.; Hoffman, John L.; Person, Dawn R.

2015-01-01

This study evaluated variables associated with academic preparation and student demographics as predictors of academic achievement through participation in supplemental instruction (SI) programs for community college students in Science, Technology, Engineering, and Math (STEM) fields. The findings suggest a differential impact of SI outcome for…

PRE-COLLEGE EXPERIENCES AS PREPARATION FOR COLLEGE COURSES IN AGRONOMY.

Science.gov (United States)

BEEKS, JOHN C.

TO DETERMINE THE KNOWLEDGE OF AGRONOMY POSSESSED BY ENTERING FRESHMEN IN THE COLLEGE OF AGRICULTURE AT THE UNIVERSITY OF MISSOURI, STUDENTS ENROLLED IN THE REQUIRED COURSE AGRICULTURE IN THE ECONOMY DURING THE YEARS 1962 AND 1963 RESPONDED TO A 100-ITEM MULTIPLE CHOICE INSTRUMENT. A TOTAL OF 310 USABLE ANSWER SHEETS FURNISHED DATA ON STUDENTS--(1)…

A Precise Visual Method for Narrow Butt Detection in Specular Reflection Workpiece Welding

Directory of Open Access Journals (Sweden)

Jinle Zeng

2016-09-01

Full Text Available During the complex path workpiece welding, it is important to keep the welding torch aligned with the groove center using a visual seam detection method, so that the deviation between the torch and the groove can be corrected automatically. However, when detecting the narrow butt of a specular reflection workpiece, the existing methods may fail because of the extremely small groove width and the poor imaging quality. This paper proposes a novel detection method to solve these issues. We design a uniform surface light source to get high signal-to-noise ratio images against the specular reflection effect, and a double-line laser light source is used to obtain the workpiece surface equation relative to the torch. Two light sources are switched on alternately and the camera is synchronized to capture images when each light is on; then the position and pose between the torch and the groove can be obtained nearly at the same time. Experimental results show that our method can detect the groove effectively and efficiently during the welding process. The image resolution is 12.5 μm and the processing time is less than 10 ms per frame. This indicates our method can be applied to real-time narrow butt detection during high-speed welding process.

Special metallurgy - the electrical butt-welding by flashing of sintered magnesium-magnesium oxide composites (1963)

International Nuclear Information System (INIS)

Charleux, J.

1963-01-01

Electrical resistance welding has become quite important since World War II because of the need of a high yield in aeronautical production. Progress has been due in particular to the improvements made in electronically controlled apparatus making possible the automatic control of welding. For the butt-welding of sections requiring either a high production rate or a high quality weld, the flash butt-welding system has been very much developed these last few years. The use of this welding method is of great importance in the field of the bonding of oxidisable metals such as magnesium or aluminium and its alloys, because the welded joint is free from oxides. This study consists of general considerations on the flash-welding process with regard to temperature distribution in the parts during welding, and to electrical phenomena connected with flashing. Besides this general or theoretical section, we have applied the welding process to the bonding of sintered magnesium, a magnesium-magnesium oxide composite, whose use as a structural element in nuclear reactors is considered. (author) [fr

Are Homeschoolers Prepared for College Calculus?

Science.gov (United States)

Wilkens, Christian P.; Wade, Carol H.; Sonnert, Gerhard; Sadler, Philip M.

2015-01-01

Homeschooling in the United States has grown considerably over the past several decades. This article presents findings from the Factors Influencing College Success in Mathematics (FICSMath) survey, a national study of 10,492 students enrolled in tertiary calculus, including 190 students who reported homeschooling for a majority of their high…

76 FR 19788 - Carbon Steel Butt-Weld Pipe Fittings From Brazil, China, Japan, Taiwan, and Thailand

Science.gov (United States)

2011-04-08

...)] Carbon Steel Butt-Weld Pipe Fittings From Brazil, China, Japan, Taiwan, and Thailand Determinations On... fittings from Brazil, China, Japan, Taiwan, and Thailand would be likely to lead to continuation or recurrence of material injury to an industry in the United States within a reasonably foreseeable time. \\1...

Assessment of NDE Methods on Inspection of HDPE Butt Fusion Piping Joints for Lack of Fusion with Validation from Mechanical Testing

International Nuclear Information System (INIS)

Anderson, Michael T.; Cinson, Anthony D.; Crawford, Susan L.; Doctor, Steven R.; Moran, Traci L.; Watts, Michael W.

2010-01-01

Studies at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington, are being conducted to evaluate nondestructive examinations (NDE) coupled with mechanical testing of butt fusion joints in high-density polyethylene (HDPE) pipe for assessing lack of fusion. The work provides information to the U.S. Nuclear Regulatory Commission (NRC) on the effectiveness of volumetric inspection techniques of HDPE butt fusion joints in Section III, Division 1, Class 3, buried piping systems in nuclear power plants. This paper describes results from preliminary assessments using ultrasonic and microwave nondestructive techniques and mechanical testing with the high-speed tensile impact test and the side-bend test for determining joint integrity. A series of butt joints were fabricated in 3408, 12-in. IPS DR-11 HDPE material by varying the fusion parameters to create good joints and joints containing a range of lack-of-fusion conditions. Six of these butt joints were volumetrically examined with time-of-flight diffraction (TOFD), phased-array (PA) ultrasound, and the Evisive microwave system. The outer-diameter weld beads were removed for the microwave inspection. In two of the four pipes, both the outer and inner weld beads were removed and the pipe joints re-evaluated. The pipes were sectioned and the joints destructively evaluated with the side-bend test by cutting portions of the fusion joint into slices that were planed and bent. The last step in this limited study will be to correlate the fusion parameters, nondestructive, and destructive evaluation results to validate the effectiveness of what each NDE technology detects and what each does not detect. The results of the correlation will be used in identifying any future work that is needed.

In-process monitoring and adaptive control for gap in micro butt welding with pulsed YAG laser

International Nuclear Information System (INIS)

Kawahito, Yousuke; Kito, Masayuki; Katayama, Seiji

2007-01-01

A gap is one of the most important issues to be solved in laser welding of a micro butt joint, because the gap results in welding defects such as underfilling or a non-bonded joint. In-process monitoring and adaptive control has been expected as one of the useful procedures for the stable production of sound laser welds without defects. The objective of this research is to evaluate the availability of in-process monitoring and adaptive control in micro butt welding of pure titanium rods with a pulsed neodymium : yttrium aluminium garnet (Nd : YAG) laser beam of a 150 μm spot diameter. It was revealed that a 45 μm narrow gap was detected by the remarkable jump in a reflected light intensity due to the formation of the molten pool which could bridge the gap. Heat radiation signal levels increased in proportion to the sizes of molten pools or penetration depths for the respective laser powers. As for adaptive control, the laser peak power was controlled on the basis of the reflected light or the heat radiation signals to stably produce a sound deeply penetrated weld reduced underfilling. In the case of a 100 μm gap, the underfilling was greatly reduced by half smaller than those made with a conventional rectangular pulse shape in seam welding as well as spot welding with a pulsed Nd : YAG laser beam. Consequently, the adaptive control of the laser peak power on the basis of in-process monitoring could reduce the harmful effects due to a gap in micro butt laser welding with a pulsed laser beam

Nazareth College: Specialty Preparation for Speech-Language Pathologists to Work with Children Who Are Deaf and Hard of Hearing

Science.gov (United States)

Brown, Paula M.; Quenin, Cathy

2010-01-01

The specialty preparation program within the speech-language pathology master's degree program at Nazareth College in Rochester, New York, was designed to train speech-language pathologists to work with children who are deaf and hard of hearing, ages 0 to 21. The program is offered in collaboration with the Rochester Institute of Technology,…

"Context-Specific" Teacher Preparation for New York City: An Exploration of the Content of Context in Bard College's Urban Teacher Residency Program

Science.gov (United States)

Hammerness, Karen; Craig, Elizabeth

2016-01-01

In this article, we examine a residency program that was developed to prepare teachers specifically for New York City schools--the Bard College Master of Arts in Teaching Urban Teacher Residency program. This focused preparation on the particular urban context of New York City provides us with a unique opportunity to examine the nature of…

Noble Gas Isotope Evidence for Mantle Volatiles in the Cu-Mo Porphyry and Main Stage Polymetallic Veins at Butte, Montana

Science.gov (United States)

Hofstra, A. H.; Rusk, B. G.; Manning, A. H.; Hunt, A. G.; Landis, G. P.

2017-12-01

Recent studies suggest that volatiles released from mafic intrusions may be important sources of heat, sulfur, and metals in porphyry Cu-Mo-Au and epithermal Au-Ag deposits associated with intermediate to silicic stocks. The huge Cu-Mo porphyry and Main Stage polymetallic vein deposits at Butte are well suited to test this hypothesis because there is no geologic or isotopic evidence of basaltic intrusions in the mine or drill holes. The Butte porphyry-vein system is associated with quartz monzonite stocks and dikes within the southwest part of the Late Cretaceous Boulder batholith. The Boulder batholith was emplaced into Mesoproterozoic to Mesozoic sedimentary rocks and Late Cretaceous volcanic rocks. The Boulder batholith and Butte intrusions have Sri and eNd values indicative of crustal contamination. Eu and Ce anomalies in zircon from Butte intrusions provide evidence of oxidation due to magma degassing. To ascertain the source of volatiles in this system, 11 samples from the Cu-Mo porphyry and 16 from Main Stage veins were selected. The isotopic composition of Ar, Ne, and He extracted from fluid inclusions in quartz, magnetite, pyrite, chalcopyrite, sphalerite, galena, enargite, and covellite were determined. Helium isotopes exceed blank levels in all samples and Ne and Ar in some samples. On a 38Ar/36Ar vs. 40Ar/36Ar diagram, data plot near air. On a 20Ne/22Ne vs. 21Ne/22Ne diagram, data extend from air along the trajectories of OIB and MORB. On a 36Ar/4He vs. 3He/4He RA diagram, data extend from crust toward the air-mantle mixing line. The maximum 3He/4He RA values in the Cu-Mo porphyry (2.86) and Main Stage veins (3.46) are from pyrite and these values correspond to 36 and 43 % mantle helium. The Ne and He results show that fluid inclusions contain volatiles discharged from mantle magmas and that these volatiles were diluted by groundwater containing He derived from country rocks. Despite the lack of mafic intrusions in the Butte magmatic center, noble gas

Does College Focus Matter? Explaining Differences in Performance among Community Colleges in North Carolina: A CAPSEE Working Paper

Science.gov (United States)

Dunn, Michael; Kalleberg, Arne L.

2016-01-01

The evolution of community colleges from their origins as junior colleges to institutions with dual missions to provide both academic and workforce preparation raises questions about the impact of a college's mission focus on its students' labor market success. We examine this question using data from the 58 colleges in the North Carolina…

Factors Associated with Success in College Calculus II

Science.gov (United States)

Rosasco, Margaret E.

2013-01-01

Students are entering college having earned credit for college Calculus 1 based on their scores on the College Board's Advanced Placement (AP) Calculus AB exam. Despite being granted credit for college Calculus 1, it is unclear whether these students are adequately prepared for college Calculus 2. College calculus classes are often taught from a…

Features of residual stresses in duplex stainless steel butt welds

Science.gov (United States)

Um, Tae-Hwan; Lee, Chin-Hyung; Chang, Kyong-Ho; Nguyen Van Do, Vuong

2018-04-01

Duplex stainless steel finds increasing use as an alternative to austenitic stainless steel, particularly where chloride or sulphide stress corrosion cracking is of primary concern, due to the excellent combination of strength and corrosion resistance. During welding, duplex stainless steel does not create the same magnitude or distribution of weld-induced residual stresses as those in welded austenitic stainless steel due to the different physical and mechanical properties between them. In this work, an experimental study on the residual stresses in butt-welded duplex stainless steel is performed utilizing the layering technique to investigate the characteristics of residual stresses in the weldment. Three-dimensional thermos-mechanical-metallurgical finite element analysis is also performed to confirm the residual stress measurements.

The coal deposits of the Alkali Butte, the Big Sand Draw, and the Beaver Creek fields, Fremont County, Wyoming

Science.gov (United States)

Thompson, Raymond M.; White, Vincent L.

1952-01-01

Large coal reserves are present in three areas located between 12 and 20 miles southeast of Riverton, Fremont County, central Wyoming. Coal in two of these areas, the Alkali Butte coal field and the Big Sand Draw coal field, is exposed on the surface and has been developed to some extent by underground mining. The Beaver Creek coal field is known only from drill cuttings and cores from wells drilled for oil and gas in the Beaver Creek oil and gas field.These three coal areas can be reached most readily from Riverton, Wyo. State Route 320 crosses Wind River about 1 mile south of Riverton. A few hundred yards south of the river a graveled road branches off the highway and extends south across the Popo Agie River toward Sand Draw oil and gas field. About 8 miles south of the highway along the Sand Draw road, a dirt road bears east and along this road it is about 12 miles to the Bell coal mine in the Alkali Butte coal field. Three miles southeast of the Alkali Butte turn-off, 3 miles of oiled road extends southwest into the Beaver Creek oil and gas field. About 6 miles southeast of the Beaver Creek turn-off, in the valley of Little Sand Draw Creek, a dirt road extends east 1. mile and then southeast 1 mile to the Downey mine in the Big Sand Draw coal field. Location of these coal fields is shown on figure 1 with their relationship to the Wind River basin and other coal fields, place localities, and wells mentioned in this report. The coal in the Alkali Butte coal field is exposed partly on the Wind River Indian Reservation in Tps. 1 and 2 S., R. 6 E., and partly on public land. Coal in the Beaver Creek and Big Sand Draw coal fields is mainly on public land. The region has a semiarid climate with rainfall averaging less than 10 in. per year. When rain does fall the sandy-bottomed stream channels fill rapidly and are frequently impassable for a few hours. Beaver Creek, Big Sand Draw, Little Sand Draw, and Kirby Draw and their smaller tributaries drain the area and flow

Critical Gap distance in Laser Butt-welding

DEFF Research Database (Denmark)

Bagger, Claus; Olsen, Flemming Ove

1999-01-01

In a number of systematic laboratory experiments the critical gap distance that results in sound beads in laser butt welding is sought identified. By grinding the edges of the sheets, a number of "reference" welds are made and compared to the sheets with shear cut edges. In the tests the gap...... was set at 0.00, 0.02, 0.05, 0.08 and 0.10 mm. Mild steel (St 1203) with a thickness of 0.75 and 1.25 mm with and without zinc coating were analysed. A total of 120 welds were made at different welding speeds.As quality norm DIN 8563 was used to divide the welds into quality classes. A number of welds...... were also x-ray photographed.Of the weld combinations analysed 80 % were of high quality and 17 % of a non-acceptable quality. 90 % of the bad welds had a gap distance larger than 0.05 mm. The results showed that 85 % of the bad welds were shear cut and only 15 % grinded. Two third of the bad welds...

Critical Gap distance in Laser Butt-welding

DEFF Research Database (Denmark)

Bagger, Claus; Olsen, Flemming Ove

of "reference" welds are made and compared to sheets with the edges shear cut. The gap distance is precisely controlled by inserting spacers between the sheets. In the tests the gap is set at 0.00, 0.02, 0.05, 0.08 and 0.10 mm. Mild steel (St 1203) with thickness? of 0.75 and 1.25 mm with and without zinc......When butt-welding metal sheets with high power lasers the gap distance between the sheets determine the final quality of the seam. In a number of systematic laboratory experiments the critical gap distance that results in sound beads is identified. By grinding the edges of the sheets, a number...... coating were analysed. A total of 120 welds are made at different welding speeds.As quality norm DIN 8563 is used to divide the welds into quality classes. Since this norm only deals with surface defects a number of welds are also x-ray photographed.According to DIN 8563 the welds have classes of either B...

Analytical model of stress field in submerged arc welding butt joint with thorough penetration

Directory of Open Access Journals (Sweden)

Winczek Jerzy

2018-01-01

Full Text Available Analytical model of temporary and residual stresses for butt welding with thorough penetration was described assuming planar section hypothesis and using integral equations of stress equilibrium of the bar and simple Hooke’s law. In solution the effect of phase transformations (structure changes and structural strains has been taken into account. Phase transformations during heating are limited by temperature values at the beginning and at the end of austenitic transformation, depending on chemical composition of steel while the progress of phase transformations during cooling is determined on the basis of TTT-welding diagram. Temperature values at the beginning and at the end of transformation are conditioned by the speed of heating. Kinetics of diffusional transformation is described basing on Johnson-Mehl-Avrami-Kolmogorov equation, while martensitic transformation, basing on Koistinen-Marburger equation. Stresses in elasto-plastic state are determined by iteration, using elastic solutions method with changeable longitudinal modulus of elasticity, conditioned by stress-strain curve. Computations of stress field have been conducted for one-side butt welded of two steel flats made from S235 steel. It has enabled a clear interpretation of influence of temperature field and phase transformation on stresses caused by welding using Submerged Arc Welding (SAW method.

A novel weld seam detection method for space weld seam of narrow butt joint in laser welding

Science.gov (United States)

Shao, Wen Jun; Huang, Yu; Zhang, Yong

2018-02-01

Structured light measurement is widely used for weld seam detection owing to its high measurement precision and robust. However, there is nearly no geometrical deformation of the stripe projected onto weld face, whose seam width is less than 0.1 mm and without misalignment. So, it's very difficult to ensure an exact retrieval of the seam feature. This issue is raised as laser welding for butt joint of thin metal plate is widely applied. Moreover, measurement for the seam width, seam center and the normal vector of the weld face at the same time during welding process is of great importance to the welding quality but rarely reported. Consequently, a seam measurement method based on vision sensor for space weld seam of narrow butt joint is proposed in this article. Three laser stripes with different wave length are project on the weldment, in which two red laser stripes are designed and used to measure the three dimensional profile of the weld face by the principle of optical triangulation, and the third green laser stripe is used as light source to measure the edge and the centerline of the seam by the principle of passive vision sensor. The corresponding image process algorithm is proposed to extract the centerline of the red laser stripes as well as the seam feature. All these three laser stripes are captured and processed in a single image so that the three dimensional position of the space weld seam can be obtained simultaneously. Finally, the result of experiment reveals that the proposed method can meet the precision demand of space narrow butt joint.

Monogenetic volcanoes fed by interconnected dikes and sills in the Hopi Buttes volcanic field, Navajo Nation, USA

Science.gov (United States)

Muirhead, James D.; Van Eaton, Alexa R.; Re, Giuseppe; White, James D. L.; Ort, Michael H.

2016-01-01

Although monogenetic volcanic fields pose hazards to major cities worldwide, their shallow magma feeders (networks. Analysis of vent alignments using the pyroclastic massifs and other eruptive centers (e.g., maar-diatremes) shows a NW-SE trend, parallel to that of dikes in the region. We therefore infer that dikes fed many of the eruptions. Dikes are also observed in places transforming to transgressive (ramping) sills. Estimates of the observable volume of dikes (maximum volume of 1.90 × 106 m3) and sills (minimum volume of 8.47 × 105 m3) in this study reveal that sills at Hopi Buttes make up at least 30 % of the shallow intruded volume (∼2.75 × 106 m3 total) within 350 m of the paeosurface. We have also identified saucer-shaped sills, which are not traditionally associated with monogenetic volcanic fields. Our study demonstrates that shallow feeders in monogenetic fields can form geometrically complex networks, particularly those intruding poorly consolidated sedimentary rocks. We conclude that the Hopi Buttes eruptions were primarily fed by NW-SE-striking dikes. However, saucer-shaped sills also played an important role in modulating eruptions by transporting magma toward and away from eruptive conduits. Sill development could have been accompanied by surface uplifts on the order of decimeters. We infer that the characteristic feeder systems described here for the Hopi Buttes may underlie monogenetic fields elsewhere, particularly where magma intersects shallow, and often weak, sedimentary rocks. Results from this study support growing evidence of the important role of shallow sills in active monogenetic fields.

Who Takes College Algebra?

Science.gov (United States)

Herriott, Scott R.; Dunbar, Steven R.

2009-01-01

The common understanding within the mathematics community is that the role of the college algebra course is to prepare students for calculus. Though exceptions are emerging, the curriculum of most college algebra courses and the content of most textbooks on the market both reflect that assumption. This article calls that assumption into question…

Preparing for the SAT: A Review

Science.gov (United States)

Appelrouth, Jed I.; Zabrucky, Karen M.

2017-01-01

In 2016, more than 1.6 million students took the Scholastic Aptitude Test (SAT), a standardized college admissions test (College Board 2016a). Researchers have estimated that 33 percent of students who take the SAT participate in some mode of formal test preparation, such as private tutoring or classes, to prepare for the exam (Buchmann, Condron…

TIG-dressing of High Strength Steel Butt Welded Connections. Part 1 : Weld Toe Geometry and Local Hardness

NARCIS (Netherlands)

Van Es, S.H.J.; Kolstein, M.H.; Pijpers, R.J.M.; Bijlaard, F.S.K.

2014-01-01

This paper presents the results of extensive measurements on weld toe geometry of as-welded and TIG-dressed butt welded connections in high strength steels S460, S690 and very high strength steels S890 and S1100. Descriptions of the measurement techniques and data analysis are presented. Four weld

TIG-dressing of high strength steel butt welded connections - Part 1: weld toe geometry and local hardness

NARCIS (Netherlands)

Es, S.H.J. van; Kolstein, M.H.; Pijpers, R.J.M.; Bijlaard, F.S.K.

2013-01-01

This paper presents the results of extensive measurements on weld toe geometry of as-welded and TIG-dressed butt welded connections in high strength steels S460, S690 and very high strength steels S890 and S1100. Descriptions of the measurement techniques and data analysis are presented. Four weld

Control of Precambrian basement deformation zones on emplacement of the Laramide Boulder batholith and Butte mining district, Montana, United States

Science.gov (United States)

Berger, Byron R.; Hildenbrand, Thomas G.; O'Neill, J. Michael

2011-01-01

What are the roles of deep Precambrian basement deformation zones in the localization of subsequent shallow-crustal deformation zones and magmas? The Paleoproterozoic Great Falls tectonic zone and its included Boulder batholith (Montana, United States) provide an opportunity to examine the importance of inherited deformation fabrics in batholith emplacement and the localization of magmatic-hydrothermal mineral deposits. Northeast-trending deformation fabrics predominate in the Great Falls tectonic zone, which formed during the suturing of Paleoproterozoic and Archean cratonic masses approximately 1,800 mega-annum (Ma). Subsequent Mesoproterozoic to Neoproterozoic deformation fabrics trend northwest. Following Paleozoic through Early Cretaceous sedimentation, a Late Cretaceous fold-and-thrust belt with associated strike-slip faulting developed across the region, wherein some Proterozoic faults localized thrust faulting, while others were reactivated as strike-slip faults. The 81- to 76-Ma Boulder batholith was emplaced along the reactivated central Paleoproterozoic suture in the Great Falls tectonic zone. Early-stage Boulder batholith plutons were emplaced concurrent with east-directed thrust faulting and localized primarily by northwest-trending strike-slip and related faults. The late-stage Butte Quartz Monzonite pluton was localized in a northeast-trending pull-apart structure that formed behind the active thrust front and is axially symmetric across the underlying northeast-striking Paleoproterozoic fault zone, interpreted as a crustal suture. The modeling of potential-field geophysical data indicates that pull-apart?stage magmas fed into the structure through two funnel-shaped zones beneath the batholith. Renewed magmatic activity in the southern feeder from 66 to 64 Ma led to the formation of two small porphyry-style copper-molybdenum deposits and ensuing world-class polymetallic copper- and silver-bearing veins in the Butte mining district. Vein orientations

Application of ultrasonic NDT technique for butt fusion joints of plastic pipes

Energy Technology Data Exchange (ETDEWEB)

Kim, Tae Gyung; Lim, Hyung Taik; Choi, Jeong Guen; Lee, Jae Myung [ANSCO, Daejeon (Korea, Republic of)

2016-05-15

The long term-durability and the soundness of the plastic pipe have been sufficiently verified through use of the plastic pipe during the past several decades. Recently, as the pipe material have been constantly developed, the application of the plastic pipe is expanded to various industrial fields, such as an increase of a use pressure, the bigger diameter of the pipe, etc. In a nuclear power plant where a carbon steel pipe and a stainless steel pipe are mainly used as a safety class III buried pipe, safety in an operation is seriously threatened by abrasion, heat deterioration or the like, frequently generated in a metal pipe. Therefore, in order to provide an alternate to this problem there is a rising interest on using high-density polyethylene (HDPE) pipes which are known to provide much enhanced corrosion, abrasion and impact resistant properties. With polyethylene piping, one of the issue that is being looked into is the integrity of butt-fusion joint. At the present time the Referencing Code and Standard for the NDT technology of for butt fusion joint of the plastic pipe have not yet established. An optimum inspection parameters were determined according to the thickness of the HDPE pipe. It was also confirmed that most of the detection results of two techniques have matched with each other. In the PAUT, it is easy to distinguish signals with from the flaws made by the thin plate and the void. Also the resolving power of PAUT on the detection in the depth direction has been demonstrated to be satisfactory.

Geology of the Pumpkin Buttes Area of the Powder River Basin, Campbell and Johnson Counties, Wyoming

Science.gov (United States)

Sharp, William Neil; White, Amos McNairy

1956-01-01

About 200 uranium occurrences have been examined in the Pumpkin Buttes area, Wyoming. Uranium minerals are visible at most of these places and occur in red and buff sandstone lenses in the Wasatch formation of Eocene age. The uranium minerals are disseminated in buff sandstone near red sandstone, and also occur in red sandstone in manganese oxide concretions and uraninite concretions.

GENDER, DEBT, AND DROPPING OUT OF COLLEGE

OpenAIRE

DWYER, RACHEL E.; HODSON, RANDY; MCLOUD, LAURA

2012-01-01

For many young Americans, access to credit has become critical to completing a college education and embarking on a successful career path. Young people increasingly face the trade-off of taking on debt to complete college or foregoing college and taking their chances in the labor market without a college degree. These trade-offs are gendered by differences in college preparation and support and by the different labor market opportunities women and men face that affect the value of a college ...

Whose College Readiness Is It Anyway? College Readiness, Cultural, Economic and Social Capital, and Access to Pre-College Transition Programs

Science.gov (United States)

Gray-Nicolas, Nakia Marissa

2017-01-01

In the United States, the majority of high school graduates are not academically prepared for the rigor of postsecondary education or equipped with the skills necessary to enter the workforce (American College Test [ACT], 2012; Barnes & Slate, 2010; Conley, 2007a, 2007b). Often blamed for this lack preparation are inconsistent linkages between…

Butt-joint integration of active optical components based on InP/AlInGaAsP alloys

DEFF Research Database (Denmark)

Kulkova, Irina; Kuznetsova, Nadezda; Semenova, Elizaveta

2014-01-01

We demonstrate all-active planar high quality butt-joint (BJ) integration of a QW Semiconductor Optical Amplifier (SOA) and MQW Electro-Absorption Modulator (EAM) based on an InP/AlInGaAsP platform. The degradation of the optical properties in the vicinity of ~1 μm to the BJ interface was determi...

76 FR 21331 - Certain Carbon Steel Butt-Weld Pipe Fittings From Brazil, Japan, Taiwan, Thailand, and the People...

Science.gov (United States)

2011-04-15

... the People's Republic of China: Continuation of Antidumping Duty Orders AGENCY: Import Administration... butt-weld pipe fittings from Brazil, Japan, Taiwan, Thailand, and the People's Republic of China (PRC), pursuant to section 751(c) of the Tariff Act of 1930, as amended (the Act). See Initiation of Five-Year...

Strategic Decision Making in Community Colleges: An Exploration of Issues Relevant to Decision Making to Confer Community College Baccalaureate Degrees

Science.gov (United States)

Currier, Charles W.

2012-01-01

This qualitative case study explores the process community college senior administrators employ when assessing the complex strategic decision to confer community college baccalaureate degrees. Strategic opportunities, such as conferring baccalaureate degrees, occur infrequently thus community college leaders must be prepared to act quickly and…

Creep failure analysis of butt welded tubes

International Nuclear Information System (INIS)

Browne, R.J.; Parker, J.D.; Walters, D.J.

1981-01-01

As part of a major research programme to investigate the influence of butt welds on the life expectancy of tubular components, a series of internal-pressure, stress-rupture tests have been carried out. Thick walled 1/2Cr 1/2Mo 1/4V tube specimens were welded with mild steel, 1Cr 1/2Mo steel, 2 1/4Cr 1Mo steel or nominally matching 1/2Cr 1/2Mo 1/4V steel to give a wide range of weld metal creep strengths relative to the parent tube. The weldments were tested at 565 0 C at two values of internal pressure, and gave failure lives of up to 44,000 hrs. Finite element techniques have been used to determine the stationary state stress distribution in the weldment which was represented by a three material model. Significant stress redistribution was indicated and these results enabled the position and orientation of cracking and the rupture life to be predicted. The theoretical and experimental results have been used to highlight the limitations of current design methods which are based on the application of the mean diameter hoop stress to the parent material stress rupture data. (author)

The study on defects in aluminum 2219-T6 thick butt friction stir welds with the application of multiple non-destructive testing methods

International Nuclear Information System (INIS)

Li, Bo; Shen, Yifu; Hu, Weiye

2011-01-01

Research highlights: → Friction stir weld-defect forming mechanisms of thick butt-joints. → Relationship between weld-defects and friction stir welding process parameters. → Multiple non-destructive testing methods applied to friction stir welds. → Empirical criterion basing on mass-conservation for inner material-loss defects. → Nonlinear correlation between weld strengths and root-flaw lengths. -- Abstract: The present study focused on the relationship between primary friction stir welding process parameters and varied types of weld-defect discovered in aluminum 2219-T6 friction stir butt-welds of thick plates, meanwhile, the weld-defect forming mechanisms were investigated. Besides a series of optical metallographic examinations for friction stir butt welds, multiple non-destructive testing methods including X-ray detection, ultrasonic C-scan testing, ultrasonic phased array inspection and fluorescent penetrating fluid inspection were successfully used aiming to examine the shapes and existence locations of different weld-defects. In addition, precipitated Al 2 Cu phase coarsening particles were found around a 'kissing-bond' defect within the weld stirred nugget zone by means of scanning electron microscope and energy dispersive X-ray analysis. On the basis of volume conservation law in material plastic deformation, a simple empirical criterion for estimating the existence of inner material-loss defects was proposed. Defect-free butt joints were obtained after process optimization of friction stir welding for aluminum 2219-T6 plates in 17-20 mm thickness. Process experiments proved that besides of tool rotation speed and travel speed, more other appropriate process parameter variables played important roles at the formation of high-quality friction stir welds, such as tool-shoulder target depth, spindle tilt angle, and fixture clamping conditions on the work-pieces. Furthermore, the nonlinear correlation between weld tensile strengths and weld crack

Merging high resolution geophysical and geochemical surveys to reduce exploration risk at glass buttes, Oregon

Energy Technology Data Exchange (ETDEWEB)

Walsh, Patrick [Ormat Nevada, Inc., Reno, NV (United States); Fercho, Steven [Ormat Nevada, Inc., Reno, NV (United States); Perkin, Doug [Ormat Nevada, Inc., Reno, NV (United States); Martini, Brigette [Corescan Inc., Ascot (Australia); Boshmann, Darrick [Oregon State Univ., Corvallis, OR (United States)

2015-06-01

The engineering and studies phase of the Glass Buttes project was aimed at reducing risk during the early stages of geothermal project development. The project’s inclusion of high resolution geophysical and geochemical surveys allowed Ormat to evaluate the value of these surveys both independently and in combination to quantify the most valuable course of action for exploration in an area where structure, permeability, and temperature are the most pressing questions. The sizes of the thermal anomalies at Glass Buttes are unusually large. Over the course of Phase I Ormat acquired high resolution LIDAR data to accurately map fault manifestations at the surface and collected detailed gravity and aeromagnetic surveys to map subsurface structural features. In addition, Ormat collected airborne hyperspectral data to assist with mapping the rock petrology and mineral alteration assemblages along Glass Buttes faults and magnetotelluric (MT) survey to try to better constrain the structures at depth. Direct and indirect identification of alteration assemblages reveal not only the geochemical character and temperature of the causative hydrothermal fluids but can also constrain areas of upflow along specific fault segments. All five datasets were merged along with subsurface lithologies and temperatures to predict the most likely locations for high permeability and hot fluids. The Glass Buttes temperature anomalies include 2 areas, totaling 60 km2 (23 mi2) of measured temperature gradients over 165° C/km (10° F/100ft). The Midnight Point temperature anomaly includes the Strat-1 well with 90°C (194 °F) at 603 m (1981 ft) with a 164 °C/km (10°F/100ft) temperature gradient at bottom hole and the GB-18 well with 71°C (160 °F) at 396 m (1300 ft) with a 182°C/km (11°F/100ft) gradient. The primary area of alteration and elevated temperature occurs near major fault intersections associated with Brothers Fault Zone and Basin and Range systems. Evidence for faulting is

Establishing Astronomy in the Curriculum at a Teacher Preparation College: Some Successes and Some Challenges

Science.gov (United States)

French, L. M.; Borkovitz, D.

1999-12-01

At Wheelock College, a liberal arts college in Boston which prepares students for careers in elementary and early childhood teaching and social work, we are developing science and mathematics courses designed to prepare our students for their work with children while teaching them adult-level math and science. Our students arrive with varying skill levels and, often, a great deal of math and science anxiety. We must address the anxiety in order for the students to make progress as learners and, eventually, teachers of math and science. Two courses have been notable successes. A one-semester course entitled The Solar System has become a staple in the curriculum. Major topics covered include finding our way around the sky, the nature of light and color, the size and scale of the solar system, and the causes of the Earth’s seasons and the phases of the moon. Students report that it changes their minds about how science can be taught by modeling a style of teaching which is more interactive than the way they were taught. In the graduate school, astronomy is the focus for a course entitled Teaching and Learning. Co-taught by an education faculty member and an astronomer, the course immerses students in learning a new content area and asks them to consider their own learning process. Observations play an important role here, with students keeping journals of their own sky observations. We also describe two challenges. One is the establishment of more advanced courses; although an astrophysics class has been offered twice to overwhelmingly positive student reviews, it is not easy to “sell”. The other challenge is the establishment of an introductory level course in stars and galaxies for non-science majors. This work has been supported in part by a grant from the DUE of the National Science Foundation.

Utilizing the geochemical data from the National Uranium Resource Evaluation (NURE) program: an evaluation of the Butte quadrangle, Montana

International Nuclear Information System (INIS)

Van Eeckhout, E.M.

1980-12-01

Some 1370 water and 1951 sediment samples were collected from 1994 locations in the Butte quadrangle, Montana, in 1976 and 1977 by the University of Montana for the Los Alamos Scientific Laboratory (LASL). The LASL analyzed the water samples for uranium and the sediment samples for uranium plus 42 additional elements. The data were then released to the Montana College of Mineral Science and Technology (MCMS and T), which was responsible for the evaluation of the uranium data. The data have subsequently been released by the LASL in an open-file report (Broxton, 1980). Statistical evaluations of the data were undertaken for uranium, copper, lead, zinc, manganese, gold, and silver. The uranium evaluations indicated certain areas in the western part of the quadrangle to be favorable for further investigation (particularly along the Rock Creek), as well as anomalous areas just north of Anaconda. The entire Boulder Batholith area had a high uranium background, but there didn't appear to be any particular site in this area that might be worth pursuing. The multielement evaluations confirmed the known base and precious metal provinces within the quadrangle. A methodology for evaluating data tapes from the National Uranium Resource Evaluation (NURE) program was developed and presented throughout this report. This methodology could be developed further to define areas worth exploring for commodities other than uranium

The impact of taking a college pre-calculus course on students' college calculus performance

Science.gov (United States)

Sonnert, Gerhard; Sadler, Philip M.

2014-11-01

Poor performance on placement exams keeps many US students who pursue a STEM (science, technology, engineering, mathematics) career from enrolling directly in college calculus. Instead, they must take a pre-calculus course that aims to better prepare them for later calculus coursework. In the USA, enrollment in pre-calculus courses in two- and four-year colleges continues to grow, and these courses are well-populated with students who already took pre-calculus in high school. We examine student performance in college calculus, using regression discontinuity to estimate the effects of taking college pre-calculus or not, in a national US sample of 5507 students at 132 institutions. We find that students who take college pre-calculus do not earn higher calculus grades.

Primary water stress corrosion cracking resistance of alloy 690 heat affected zones of butt welds

International Nuclear Information System (INIS)

Fournier, L.; Calonne, O.; Toloczko, M.B.; Bruemmer, S.M.; Massoud, J.P.; Lemaire, E.; Gerard, R.; Somville, F.; Richnau, A.; Lagerstrom, J.

2015-01-01

A wide V-groove butt weld was fabricated from Alloy 690 plates using Alloy 152 filler material, maximum allowable heat input, and very stiff strong-backs. Alloy 690 heat affected zones (HAZ) was characterized in terms of microstructure and plastic strains induced by weld shrinkage. Crack initiation tests were carried out in pure hydrogenated steam at 400 C. degrees for 4000 h. Crack growth rate tests were performed in simulated PWR primary water at a temperature of 360 C. degrees. A maximum plastic strain around 5% was measured in the vicinity of the fusion line, which decreased almost linearly with the distance from the fusion line. Crack initiation tests on Alloy 690 HAZ specimens as well as on 30% cold-rolled Alloy 690 specimens were performed in pure hydrogenated steam at 400 C. degrees (partial pressure of hydrogen = 0.7 bar) for a total of 4000 h using cylindrical notched tensile specimens, reverse U-bends and flat micro-tensile specimens. No crack initiation was detected. Stress corrosion propagation rates revealed extremely low SCC (Stress Corrosion Cracking) growth rates both in the base metal and in the HAZ region whose magnitudes are of no engineering significance. Overall, the results indicated limited plastic strain induced by weld shrinkage in butt weld HAZ, and to no particular susceptibility of primary water stress corrosion cracking. (authors)

Wintercuring of Prunus dulcis cv ‘Butte,’ P. webbii and their interspecific hybrid in response to Xylella fastidiosa infections

Science.gov (United States)

Clonal replicates of Prunus dulcis cv ‘Butte,’ P. webbii and their interspecific hybrid P 63-61 were inoculated with Xylella fastidiosa strain M23 and evaluated for Almond Leaf Scorch Disease and subsequent wintercuring of infections during three growing seasons. Initial inoculations established gr...

Real Estate Curriculum for Community Colleges.

Science.gov (United States)

Nelson, Robert W.

The Oregon Department of Education has prepared this curriculum guide to assist community college personnel in developing or upgrading real estate programs. This fast-growing field has demanded that community colleges analyze the course content of such programs so that they are relevant to the actual needs of the industry. An Advisory Committee…

Examining the Impact of Redesigned Developmental Math Courses in Community Colleges

Science.gov (United States)

Okimoto, Hae; Heck, Ronald

2015-01-01

At community colleges, student preparedness for college-level work is a significant initial barrier. Over 70% of community college students are reported to be inadequately prepared for college mathematics. Because students need to pass college-level math in order to enroll in subsequent courses required for their majors or to complete general…

Self-Study Report for Candidacy. Prepared by Mennonite College of Nursing for the North Central Association of Colleges and Schools.

Science.gov (United States)

Mennonite Coll. of Nursing, Bloomington, IN.

A self-evaluation report by the Mennonite College of Nursing, which is applying for candidacy status with the North Central Association of Colleges and Schools, is presented. Information is provided on the evolution of the program and the program evaluation process, as well as strengths and concerns of the college and plans for further…

Residual-stress distributions near stainless steel butt weldments

International Nuclear Information System (INIS)

Elligson, W.A.; Shack, W.J.

1978-01-01

Concern for the integrity of stainless steel butt-weldments in boiling-water-reactor (BWR) piping systems has stimulated study of the conditions that cause stress corrosion cracking (SCC) in the heat-affected zones (HAZ) of the weldments. It is generally agreed that a high stress exceeding the initial yield strength is one of the essential elements for crack initiation. Since design procedures usually ensure that load stresses are below initial yield, the source of the high stresses necessary to produce SCC is thought to be the residual stresses due to welding. To examine the level of residual stresses in the weldments of interest, bulk residual stresses were measured on 100 mm (4-in.) and 254 mm (10-in.) diameter Schedule 80 piping weldments using strain relief techniques. Both laboratory welded specimens and field welded specimens from reactors in service were studied. Axial bulk residual stress distributions were obtained at 45 0 intervals around the circumference. At each azimuthal position, the residual stresses were measured at seven axial positions: on the weld centerline and 13, 20, and 25 mm on either side of the weld centerline on both the inside and outside surfaces

Dynamic Diversity in a Catholic Augustinian College

Science.gov (United States)

Kelley, Joseph T.

2010-01-01

This article shows how Merrimack College's Catholic heritage and Augustinian tradition provide intellectual and spiritual resources for the college to fulfill its educational responsibility to prepare students for virtuous citizenship in a religiously and culturally pluralistic society. It uses four major Vatican documents and several foundational…

PENGARUH BESAR ARUS LISTRIK DENGAN MENGGUNAKAN ELEKTRODA SMAW TERHADAP KEKUATAN SAMBUNGAN LAS BUTT JOINT PADA PLAT MILD STEEL

Directory of Open Access Journals (Sweden)

Sarjito Jokosisworo

2012-03-01

Full Text Available The influence of mechanic disposition, is one of the factor influence ship strength. This influence can be test by mechanical test in welding butt joint. The result test database analysis can be conclude that very helpful to increase safety and quality butt joint. With steel specification C= 0,15%, Si= 0,24%, Mn= 0,88%,P= 0,018%, S= 0,034%. This material give a 90, 110, 125 ampere with SMAW AC electrode diameter 3,2 mm x 350 mm with V root and 600 angle In the fabrication of mild steel products, components or equipment, manufacturers employ welding as the principal joining method. Mild steel are weldable materials, and a welded joint can provide optimum corrosion resistance, strength, and fabrication economy. However, designers should recognize that any metal, including stainless steels, may undergo certain changes during welding. It is necessary, therefore, to exercise a reasonable degree of care during welding to minimize or prevent any deleterious effects that may occur, and to preserve the same degree of corrosion resistance and strength in weld zone that is an intheren part of the base metal

Gas metal arc welding of butt joint with varying gap width based on neural networks

DEFF Research Database (Denmark)

Christensen, Kim Hardam; Sørensen, Torben

2005-01-01

penetration, when the gap width is varying during the welding process. The process modeling to facilitate the mapping from joint geometry and reference weld quality to significant welding parameters, has been based on a multi-layer feed-forward network. The Levenberg-Marquardt algorithm for non-linear least......This paper describes the application of the neural network technology for gas metal arc welding (GMAW) control. A system has been developed for modeling and online adjustment of welding parameters, appropriate to guarantee a certain degree of quality in the field of butt joint welding with full...

Factors Influencing Japanese Women to Choose Two-Year Colleges

Science.gov (United States)

Anzai, Shinobu

2009-01-01

Two-year colleges in Japan have traditionally absorbed the major portion of female college entrants due at least partially to long-held gender stereotypes: women are to prepare themselves for marriage and homemaking at a two-year college. Recently, Japanese women began to explore selfhood outside the traditional realm of motherhood and womanhood.…

Residual stress in a thick section high strength T-butt weld

International Nuclear Information System (INIS)

Pearce, S.V.; Linton, V.M.; Oliver, E.C.

2008-01-01

Residual stresses in a structure are generated as a result of the various fabrication and welding processes used to make the component. Being able to quantify these residual stresses is a key step in determining the continuing integrity of a structure in service. In this work, the residual stresses around a high strength, quenched and tempered steel T-butt web to curved plate weld have been measured using neutron strain scanning. The results show that the residual stresses near the weld were dominated by the welding residual stresses, while the stresses further from the weld were dominated by the bending residual stresses. The results suggest that the combination of welding-induced residual stress and significant pre-welding residual stress, as in the case of a thick bent section of plate can significantly alter the residual stress profile from that in a flat plate

Recreational Use and Value of Water at Elephant Butte and Navajo Reservoirs. New Mexico State University Agricultural Experiment Station Bulletin 535.

Science.gov (United States)

Coppedge, Robert O.; Gray, James R.

This document is a descriptive study of the recreational use and the value of water at Elephant Butte and Navajo Reservoirs. Previous research studies, as well as the study areas and recreational characteristics and procedures of investigation used in this study (sampling and data collection, data organization, analysis) are described. Discussions…

Achieving Your Vision: How to Make Sustainable Living a Reality on Campus

Science.gov (United States)

Orr, Andrea

2010-01-01

Located on a wildlife reserve in northern California, Butte College is an environmentally conscious community, complete with an extensive solar-power program and a transportation network built to keep cars off its roads. The college generates more solar power than any other community college in the country and is a nationally recognized leader in…

The Aspen Prize for Community College Excellence

Science.gov (United States)

Perlstein, Linda

2011-01-01

The nation's community colleges share a common and vital purpose: preparing students--young and working adults--for jobs and continued academic study. Today, over 7 million community college students strive to attain a degree that will expand their opportunity, whether they aim to graduate directly into the workforce or continue on to seek a…

Engaging college physics students with photonics research

Science.gov (United States)

Adams, Rhys; Chen, Lawrence R.

2017-08-01

As educators and researchers in the field of photonics, we find what we do to be very exciting, and sharing this passion and excitement to our university students is natural to us. Via outreach programs and college research funding, a new college and university collaboration has broadened our student audience: photonics is brought into the college classroom and research opportunities are provided to college students. Photonics-themed active learning activities are conducted in the college Waves and Modern Physics class, helping students forge relationships between course content and modern communications technologies. Presentations on photonics research are prepared and presented by the professor and past college student-researchers. The students are then given a full tour of the photonics university laboratories. Furthermore, funds are set aside to give college students a unique opportunity to assist the college professor with experiments during a paid summer research internship.

TEM analysis of a friction stir-welded butt joint of Al-Si-Mg alloys

International Nuclear Information System (INIS)

Cabibbo, M.; Meccia, E.; Evangelista, E.

2003-01-01

The microstructure evolution of a joint of Al-Si-Mg alloys A6056-T4 and A6056-T6 has been characterized by transmission electron microscopy (TEM). Metallurgical investigations, hardness and mechanical tests were also performed to correlate the TEM investigations to the mechanical properties of the produced friction stir-welded butt joint. After friction stir-welding thermal treatment has been carried out at 530 deg. C followed by ageing at 160 deg. C (T6). The base material (T4) and the heat-treated one (T6) were put in comparison showing a remarkable ductility reduction of the joint after T6 treatment

Aligning High School and College Instruction: Preparing Students for Success in College Level Mathematics

Science.gov (United States)

Alexander, Julie

2013-01-01

Across the United States, students are entering college with a need for improvement in basic mathematics and communication skills. In 2008, the Florida Legislature passed Senate Bill 1908 which changed the expectations for the senior year of high school for many students. Students who score within certain levels on the mandatory high school…

Assessment of undiscovered oil and gas resources in the Uteland Butte Member of the Eocene Green River Formation, Uinta Basin, Utah

Science.gov (United States)

Johnson, Ronald C.; Birdwell, Justin E.; Mercier, Tracey J.; Brownfield, Michael E.; Charpentier, Ronald R.; Klett, Timothy R.; Leathers, Heidi M.; Schenk, Christopher J.; Tennyson, Marilyn E.

2015-09-03

Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered resources of 214 million barrels of oil, 329 billion cubic feet of associated/dissolved natural gas, and 14 million barrels of natural gas liquids in the informal Uteland Butte member of the Green River Formation, Uinta Basin, Utah.

Instructional Experiences That Align with Conceptual Understanding in the Transition from High School Mathematics to College Calculus

Science.gov (United States)

Wade, Carol H.; Sonnert, Gerhard; Sadler, Philip M.; Hazari, Zahra

2017-01-01

Using data from the first National study on high school preparation for college calculus success, the Factors Influencing College Success in Mathematics (FICSMath) project, this article connects student high school instructional experiences to college calculus performance. The findings reported here reveal that students were better prepared for…

College Readiness in California: A Look at Rigorous High School Course-Taking

Science.gov (United States)

Gao, Niu

2016-01-01

Recognizing the educational and economic benefits of a college degree, education policymakers at the federal, state, and local levels have made college preparation a priority. There are many ways to measure college readiness, but one key component is rigorous high school coursework. California has not yet adopted a statewide college readiness…

High-quality MOVPE butt-joint integration of InP/AlGaInAs/InGaAsP-based all-active optical components

DEFF Research Database (Denmark)

Kulkova, Irina; Kadkhodazadeh, Shima; Kuznetsova, Nadezda

2014-01-01

In this paper, we demonstrate the applicability of MOVPE butt-joint regrowth for integration of all-active InP/AlGaAs/InGaAsP optical components and the realization of high-functionality compact photonic devices. Planar high-quality integration of semiconductor optical amplifiers of various epi...

High school and college biology: A multi-level model of the effects of high school biology courses on student academic performance in introductory college biology courses

Science.gov (United States)

Loehr, John Francis

The issue of student preparation for college study in science has been an ongoing concern for both college-bound students and educators of various levels. This study uses a national sample of college students enrolled in introductory biology courses to address the relationship between high school biology preparation and subsequent introductory college biology performance. Multi-Level Modeling was used to investigate the relationship between students' high school science and mathematics experiences and college biology performance. This analysis controls for student demographic and educational background factors along with factors associated with the college or university attended. The results indicated that high school course-taking and science instructional experiences have the largest impact on student achievement in the first introductory college biology course. In particular, enrollment in courses, such as high school Calculus and Advanced Placement (AP) Biology, along with biology course content that focuses on developing a deep understanding of the topics is found to be positively associated with student achievement in introductory college biology. On the other hand, experiencing high numbers of laboratory activities, demonstrations, and independent projects along with higher levels of laboratory freedom are associated with negative achievement. These findings are relevant to high school biology teachers, college students, their parents, and educators looking beyond the goal of high school graduation.

Post-GED-Credential College Prospects for Adults with Special Needs

Science.gov (United States)

Patterson, Margaret Becker

2014-01-01

Many adults with special needs, who did not finish high school, complete a GED® credential to go to college. As they prepare to transition, they may encounter barriers and likely require supports to succeed in college. The purpose of this qualitative research paper is to describe the college prospects of transitioning adults with a GED credential…

The Hathaway Scholarship and Academic Preparation: A Study of Perceptions of Academic Preparation and Academic Success

Science.gov (United States)

Aagard, Tammy Lindsay

2010-01-01

With the implementation of the Hathaway scholarship in the state of Wyoming, questions arose regarding the effectiveness of a prescribed set of high school courses (the Success Curriculum) in preparing students for success in college. This research sought to determine the perceptions of academic preparation of students who earned the Hathaway…

Generativity in College Students: Comparing and Explaining the Impact of Mentoring

Science.gov (United States)

Hastings, Lindsay J.; Griesen, James V.; Hoover, Richard E.; Creswell, John W.; Dlugosh, Larry L.

2015-01-01

Preparing college students to be active contributors to the next generation is an important function of higher education. This assumption about generativity forms a cornerstone in this mixed methods study that examined generativity levels among 273 college students at a 4-year public university. MANCOVA results indicated that college students who…

The College Student Today: A Social Portrait and Attitudes toward Schooling.

Science.gov (United States)

Dolzhenko, L.

1998-01-01

Discusses the view of education in Russia and college students' attitudes about their futures. Addresses how well prepared high school graduates are to enroll in a higher education institution, the social composition of college students, and the practice of bribes in relation to assessing student preparedness for college. Explores nonstate…

Is Your College Really Ready for a Crisis?

Science.gov (United States)

Connolly, Maureen

2012-01-01

Community colleges are responsible not only for the education but also for the safety and welfare of their students. That responsibility includes keeping students free from physical and psychological harm from the moment they enter the campus. In recent years, it has become distressingly apparent that colleges are not well prepared for this…

The Impact of Preparing Faculty in the Effective Use of Student Teams

Science.gov (United States)

Burbach, Mark E.; Matkin, Gina S.; Gambrell, Kem M.; Harding, Heath E.

2010-01-01

Companies increasingly rely on teams to improve productivity, and consequently employers expect colleges and universities to prepare graduates to effectively work in teams. To help with this need, instructors must be equipped to prepare students to fully capitalize on the power of teamwork. This study examines the effect of college instructor…

Yes We Can! A Community College Guide for Developing America's Underprepared.

Science.gov (United States)

McCabe, Robert H.

This book argues that most academically deficient students do not lack talent, but do lack preparation. Nearly half of students entering community colleges are underprepared, and fewer than half gain the competency needed to succeed in college-level courses. Community colleges have the capability to develop these talents for the benefit of the…

Transitions from high school to college.

Science.gov (United States)

Venezia, Andrea; Jaeger, Laura

2013-01-01

The vast majority of high school students aspire to some kind of postsecondary education, yet far too many of them enter college without the basic content knowledge, skills, or habits of mind they need to succeed. Andrea Venezia and Laura Jaeger look at the state of college readiness among high school students, the effectiveness of programs in place to help them transition to college, and efforts to improve those transitions. Students are unprepared for postsecondary coursework for many reasons, the authors write, including differences between what high schools teach and what colleges expect, as well as large disparities between the instruction offered by high schools with high concentrations of students in poverty and that offered by high schools with more advantaged students. The authors also note the importance of noncurricular variables, such as peer influences, parental expectations, and conditions that encourage academic study. Interventions to improve college readiness offer a variety of services, from academic preparation and information about college and financial aid, to psychosocial and behavioral supports, to the development of habits of mind including organizational skills, anticipation, persistence, and resiliency. The authors also discuss more systemic programs, such as Middle College High Schools, and review efforts to allow high school students to take college classes (known as dual enrollment). Evaluations of the effectiveness of these efforts are limited, but the authors report that studies of precollege support programs generally show small impacts, while the more systemic programs show mixed results. Dual-enrollment programs show promise, but the evaluation designs may overstate the results. The Common Core State Standards, a voluntary set of goals and expectations in English and math adopted by most states, offer the potential to improve college and career readiness, the authors write. But that potential will be realized, they add, only if the

Personal factors that influence deaf college students' academic success.

Science.gov (United States)

Albertini, John A; Kelly, Ronald R; Matchett, Mary Karol

2012-01-01

Research tells us that academic preparation is key to deaf students' success at college. Yet, that is not the whole story. Many academically prepared students drop out during their first year. This study identified entering deaf college students' personal factors as assessed by their individual responses to both the Noel-Levitz College Student Inventory Form B and the Learning and Study Strategies Inventory, second edition (LASSI). Entering students in 3 successive cohorts (total n =437) participated in this study. Results show that in addition to entry measurements of reading and mathematic skills, personal factors contributed to the academic performance of students in their first quarter in college. The Noel-Levitz provided the comparatively better predictive value of academic performance: Motivation for Academic Study Scale (e.g., desire to finish college). The LASSI also showed statistically significant predictors, the Self-Regulation Component (e.g., time management) and Will Component (e.g., self-discipline), but accounted for relatively less variability in the students' initial grade point averages. For this group of underprepared students, results show that personal factors can play a significant role in academic success. Deaf students' personal factors are discussed as they relate to other first-year college students and to their subsequent academic performance and persistence.

Wired for success: A history of the Butte, Anaconda & Pacific Railway, 1892--1985

Science.gov (United States)

Mutschler, Charles Vincent

The Butte, Anaconda & Pacific Railway (BA&P) was a standard gauge common carrier short line railroad within the state of Montana. A subsidiary of the Anaconda Copper Mining Company, the BA&P was built to carry ore from mines at Butte, Montana to Anaconda, twenty-six miles away, for concentrating and smelting. Other freight and passenger business was of secondary importance. In 1912, when General Electric contracted to convert the BA&P from steam to electric operation, the short line became a proving ground for main line railroad electrification, and the center of attention from advocates for electric power. Electric operation was demonstrated to be mechanically superior to the use of steam locomotives on the BA&P. Immediately after the BA&P proved the technological feasibility of high voltage direct current for moving heavy freight trains, the Chicago Milwaukee & St. Paul (CM&St.P) electrified over 600 miles of transcontinental main line using the basic technology demonstrated on the BA&P. However, on long distances of track with relatively few trains such as the CM&St.P, the capital cost of the electric distribution system exceeded the operational savings obtained by use of electric locomotives. Steam locomotives remained the primary form of railroad motive power in the United States until the 1950's, when the diesel-electric locomotive combined the mechanical efficiency of electric motors with an on-board diesel generating plant, eliminating the need for expensive electric power supply and distribution wires of conventional electrics. The BA&P purchased three diesels in the early 1950's, but relied primarily on its electric locomotives until 1967, when diesel operation became less costly than continued use of electric motive power. The BA&P offers a microcosmic view of the transformation of one industry in response to technological and economic forces as the United States moved from reliance on coal-burning steam power to electric power and internal combustion

Preparing technicians for photonics industries and organizations

Science.gov (United States)

Souders, John; Hull, Dan

2012-10-01

U.S. photonics organizations need about 800 new photonics technicians each year. Thirty-one community and technical colleges have approximately 700 students enrolled in photonics related programs; about 275 of them complete their coursework and enter the workforce each year. A disparity exists between the demand and supply of qualified photonics technicians in the U.S. OP-TEC, the National Center for Optics and Photonics Education is a consortium of seven colleges, under the leadership of the University of Central Florida, and sponsored by NSF. OP-TEC's mission is to increase the quantity and quality of photonics technicians prepared at two-year colleges. OP-TEC maintains the National Photonics Skill Standards for Technicians, provides curriculum models, teaching materials, faculty training/professional development and planning services to strengthen existing college photonics programs and to attract and support new ones. OP-TEC is converting its text materials to E-Books to support students in technical programs. Through OP-TEC's recruitment efforts 84 additional colleges are interested in initiating new photonics programs. The OP-TEC Photonics College Network (OPCN) consists of 28 colleges that are currently providing photonics education. This fall OPCN will lead an additional national effort to further educate employed photonics technicians through on-line courses, complemented by lab experiences at nearby colleges. OP-TEC is expanding its outreach to photonics employers and colleges by regionalizing its approach to offering its services. OP-TEC is also planning to develop new curricula and instructional materials for AAS programs to prepare Precision Optics Technicians. This paper will detail OP-TEC's work with particular emphases on its materials and services.

Preparing for College Success: Exploring Undergraduate Students' Perceptions of the Benefits of a College Reading and Study Skills Course through Action Research

Science.gov (United States)

Howard, Christy M.; Moret, Lanette; Faulconer, Johna; Cannon, Tanya; Tomlin, Amanda

2018-01-01

The purpose of this study was to examine undergraduate students' perceptions of the benefits of a college reading and study skills course. Researchers have found that even with increased emphasis on college readiness, many students continue to enter college unprepared for the rigorous academic expectations they may face. With this in mind, this…

Intervention for High School Latino Students in Preparing for College: Steps for Consideration

Science.gov (United States)

Rodriguez, Eric; Rhodes, Kent; Aguirre, Geoffrey

2015-01-01

Several factors contribute to a disproportionately lower Latino participation in college education. Foremost among those factors are policies that encourage quick job placement over career development, lack of understanding of the benefits of a college degree, lower expectations for Latino students, poor financial planning, and lack of guidance. A…

Career Development with Transgender College Students: Implications for Career and Employment Counselors

Science.gov (United States)

Scott, David A.; Belke, Stephanie L.; Barfield, Hannah G.

2011-01-01

The number of transgender college students continues to increase every year. These students face unique challenges that many college and university career centers are not prepared to handle. This article describes some of the challenges facing transgender students and college career centers. A professional development design is proposed to assist…

Interpreting Mathematics Scores on the New Jersey College Basic Skills Placement Test.

Science.gov (United States)

Dass, Jane; Pine, Charles

The New Jersey College Basic Skills Placement Test (NJCBSPT) is designed to measure certain basic language and mathematics skills of students entering New Jersey colleges. The primary purpose of the two mathematics sections is to determine whether students are prepared to begin certain college-level work without a handicap in computation or…

First-Year College Students with ADHD And/or LD: Differences in Engagement, Positive Core Self-Evaluation, School Preparation, and College Expectations

Science.gov (United States)

DuPaul, George J.; Pinho, Trevor D.; Pollack, Brittany L.; Gormley, Matthew J.; Laracy, Seth D.

2017-01-01

Students with attention-deficit/hyperactivity disorder (ADHD) and/or learning disabilities (LD) experience significant challenges in making the transition from high school to college. This study examined the ways first-year college students with ADHD, LD, ADHD+LD, and comparison peers differ in engagement, core self-evaluation, high school…

Changing Lives, Building a Workforce: Preparing Community College Students for Jobs and Careers

Science.gov (United States)

ACT, Inc., 2013

2013-01-01

The importance of community colleges has never been as recognized by the country's state and national elected officials as it is today. Community colleges are viewed as an essential, if not the most essential, resource in addressing the economic and workforce development needs of many regions and communities across the country. This paper examines…

Effects of Post-Weld Heat Treatment on the Microstructure and Toughness of Flash Butt Welded High-Strength Low-Alloy Steel

Science.gov (United States)

Shajan, Nikhil; Arora, Kanwer Singh; Asati, Brajesh; Sharma, Vikram; Shome, Mahadev

2018-04-01

Effect of post-weld heat treatment on the weld microstructure, texture, and its correlation to the toughness of flash butt welded joints were investigated. Upon flash butt welding, the α and γ-fiber in the parent material converted to Goss (110)[001], rotated Goss (110)[1 \\bar{1} 0], and rotated cube (001)[1 \\bar{1} 0], (001)[ \\overline{11} 0] textures along the fracture plane. Formation of these detrimental texture components was a result of shear deformation and recrystallization of austenite at temperatures above T nr resulting in a drop of toughness at the weld zone. Inter-critical and sub-critical annealing cycles proved to be less effective in reducing the Goss (110)[001], rotated Goss (110)[1 \\bar{1} 0], and rotated cube (001)[1 \\bar{1} 0], (001)[ \\overline{11} 0] texture components, and therefore, toughness values remained unaffected. Post-weld heat treatment in the austenite phase field at 1000 °C for 5 seconds resulted in the formation of new grains with different orientations leading to a reduction in the texture intensities of both Goss and rotated Goss components and therefore improved weld zone toughness. Prolonged annealing time was found to be ineffective in improving the toughness due to grain growth.

College of New Caledonia Three Year Plan, 1991-1994.

Science.gov (United States)

Seens, Paul

In 1991, the College of New Caledonia (CNC) (British Columbia, Canada) prepared this 3-year plan representing the college's vision of the future as it attempts to meet the educational needs of the region. Identifying key opportunities open to CNC, this nine-part plan describes CNC's mission, goals, plans, and objectives. Section I provides an…

For-profit colleges.

Science.gov (United States)

Deming, David; Goldin, Claudia; Katz, Lawrence

2013-01-01

For-profit, or proprietary, colleges are the fastest-growing postsecondary schools in the nation, enrolling a disproportionately high share of disadvantaged and minority students and those ill-prepared for college. Because these schools, many of them big national chains, derive most of their revenue from taxpayer-funded student financial aid, they are of interest to policy makers not only for the role they play in the higher education spectrum but also for the value they provide their students. In this article, David Deming, Claudia Goldin, and Lawrence Katz look at the students who attend for-profits, the reasons they choose these schools, and student outcomes on a number of broad measures and draw several conclusions. First, the authors write, the evidence shows that public community colleges may provide an equal or better education at lower cost than for-profits. But budget pressures mean that community colleges and other nonselective public institutions may not be able to meet the demand for higher education. Some students unable to get into desired courses and programs at public institutions may face only two alternatives: attendance at a for-profit or no postsecondary education at all. Second, for-profits appear to be at their best with well-defined programs of short duration that prepare students for a specific occupation. But for-profit completion rates, default rates, and labor market outcomes for students seeking associate's or higher degrees compare unfavorably with those of public postsecondary institutions. In principle, taxpayer investment in student aid should be accompanied by scrutiny concerning whether students complete their course of study and subsequently earn enough to justify the investment and pay back their student loans. Designing appropriate regulations to help students navigate the market for higher education has proven to be a challenge because of the great variation in student goals and types of programs. Ensuring that potential

Tobacco industry responsibility for butts: a Model Tobacco Waste Act.

Science.gov (United States)

Curtis, Clifton; Novotny, Thomas E; Lee, Kelley; Freiberg, Mike; McLaughlin, Ian

2017-01-01

Cigarette butts and other postconsumer products from tobacco use are the most common waste elements picked up worldwide each year during environmental cleanups. Under the environmental principle of Extended Producer Responsibility, tobacco product manufacturers may be held responsible for collection, transport, processing and safe disposal of tobacco product waste (TPW). Legislation has been applied to other toxic and hazardous postconsumer waste products such as paints, pesticide containers and unused pharmaceuticals, to reduce, prevent and mitigate their environmental impacts. Additional product stewardship (PS) requirements may be necessary for other stakeholders and beneficiaries of tobacco product sales and use, especially suppliers, retailers and consumers, in order to ensure effective TPW reduction. This report describes how a Model Tobacco Waste Act may be adopted by national and subnational jurisdictions to address the environmental impacts of TPW. Such a law will also reduce tobacco use and its health consequences by raising attention to the environmental hazards of TPW, increasing the price of tobacco products, and reducing the number of tobacco product retailers. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

Study of the joining of polycarbonate panels in butt joint configuration through friction stir welding

Science.gov (United States)

Astarita, Antonello; Boccarusso, Luca; Carrino, Luigi; Durante, Massimo; Minutolo, Fabrizio Memola Capece; Squillace, Antonino

2018-05-01

Polycarbonate sheets, 3 mm thick, were successfully friction stir welded in butt joint configuration. Aiming to study the feasibility of the process and the influence of the process parameters joints under different processing conditions, obtained by varying the tool rotational speed and the tool travel speed, were realized. Tensile tests were carried out to characterize the joints. Moreover the forces arising during the process were recorded and carefully studied. The experimental outcomes proved the feasibility of the process when the process parameters are properly set, joints retaining more than 70% of the UTS of the base material were produced. The trend of the forces was described and explained, the influence of the process parameters was also introduced.

Accelerating the College and Career Readiness of North Dakota's Students

Science.gov (United States)

Alliance for Excellent Education, 2011

2011-01-01

This paper captures the progress made by North Dakota in adopting both the common core state standards, subsequent work in ensuring those standards are accompanied by college- and career-ready assessments, and the potential benefits of preparing all students for success in college and a career. (Contains 11 endnotes.)

GENDER, DEBT, AND DROPPING OUT OF COLLEGE.

Science.gov (United States)

Dwyer, Rachel E; Hodson, Randy; McLoud, Laura

2013-02-01

For many young Americans, access to credit has become critical to completing a college education and embarking on a successful career path. Young people increasingly face the trade-off of taking on debt to complete college or foregoing college and taking their chances in the labor market without a college degree. These trade-offs are gendered by differences in college preparation and support and by the different labor market opportunities women and men face that affect the value of a college degree and future difficulties they may face in repaying college debt. We examine these new realities by studying gender differences in the role of debt in the pivotal event of graduating from college using the 1997 cohort of the national longitudinal Survey of youth. In this article, we find that women and men both experience slowing and even diminishing probabilities of graduating when carrying high levels of debt, but that men drop out at lower levels of debt than do women. We conclude by theorizing that high levels of debt are one of the mechanisms that sort women and men into different positions in the social stratification system.

Vocational Teacher Education at Ferris State College: Product of Constant Evaluation and Revision

Science.gov (United States)

Storm, George

1974-01-01

The trade-technical education program at Ferris State College, Big Rapids, Michigan, is reviewed. The curriculum of the college, its intern programs, and the teacher preparation technical programs are described. (DS)

Mass Media Use by College Students during Hurricane Threat

Science.gov (United States)

Piotrowski, Chris

2015-01-01

There is a dearth of studies on how college students prepare for the threat of natural disasters. This study surveyed college students' preferences in mass media use prior to an approaching hurricane. The convenience sample (n = 76) were from a university located in the hurricane-prone area of the central Gulf of Mexico coast. Interestingly,…

Effects of the Decline in Social Capital on College Graduates' Soft Skills

Science.gov (United States)

Andreas, Sarah

2018-01-01

Both businesses and recent college graduates in the United States attribute the lack of soft skills in recent college graduates to the colleges' inability to prepare students for the workforce. This article explores the literature on social capital, human capital and social learning theory, offering an alternative hypothesis for why recent…

 Ischemic Stroke Secondary to Aortic Dissection Following Rifle Butt Recoil Chest Injury: A Case Report

Directory of Open Access Journals (Sweden)

John Valiath

2011-11-01

Full Text Available  Ischemic stroke secondary to aortic dissection is not uncommon. We present a patient with left hemiplegia secondary to Stanford type A aortic dissection extending to the supra-aortic vessels, which was precipitated by rifle butt recoil chest injury. The diagnosis of aortic dissection was delayed due to various factors. Finally, the patient underwent successful Bentall procedure with complete resolution of symptoms. This case emphasizes the need for caution in the use of firearms for recreation and to take precautions in preventing such incidents. In addition, this case illustrates the need for prompt cardiovascular physical examination in patients presenting with stroke.

On Preparing for Squadron Command

Science.gov (United States)

1988-04-01

Gortler, Majur Gordon D. "Management Development---Could the Air Force Be Doing More?" Resear,;h Study, Air Command and Staff College. 1 07:3. 20...ABSTRACT (Continue on reverse If necessary and identify by block number) -This study addresses the broad issue of preparing Air Force officers for...are obsolete. SECURITY CLASSIFICATION OF THIS PAGE UNCLASSIFIED - - PREFACE This study addresses the broad Issue of preparing Air Force officers to

Increasing the Capacity of College Counseling through Video Game Design

Science.gov (United States)

Mathis, Jonathan D.

2010-01-01

This article discusses game design concepts suggested to foster engagement while considering the needs of underserved high school students preparing for the college admission process. The contextual nature of college counseling efforts in urban secondary school settings provides a backdrop for consideration of the manner in which game design and…

Tool material effect on the friction stir butt welding of AA2124-T4 Alloy Matrix MMC

Directory of Open Access Journals (Sweden)

Yahya Bozkurt

2018-01-01

Full Text Available The purpose of the present work is to study on the effect of material properties tool on friction stir butt welding of AA2124-T4 alloy matrix MMC. Uncoated tool, coated tool with a CrN, and coated tool with AlTiN were used to weld aluminum MMC plates. Macrostructure and microstructure observations, ultimate tensile strength, wear resistance, and chemical analysis were carried out to determine the appropriate tool for joining these composite plates. Results showed that the good welded joints could be obtained when a tool is coated with AlTiN.

Integrated FEM-DBEM simulation of crack propagation in AA2024-T3 FSW butt joints considering manufacturing effects

DEFF Research Database (Denmark)

Sonne, Mads Rostgaard; Carlone, P.; Citarella, R.

2015-01-01

This paper deals with a numerical and experimental investigation on the influence of residual stresses on fatigue crack growth in AA2024-T3 friction stir welded butt joints. An integrated FEM-DBEM procedure for the simulation of crack propagation is proposed and discussed. A numerical FEM model...... of the welding process of precipitation hardenable AA2024-T3 aluminum alloy is employed to infer the process induced residual stress field. The reliability of the FEM simulations with respect to the induced residual stresses is assessed comparing numerical outcomes with experimental data obtained by means...

Busted Butte Phase 2: Introduction and Analytical Modeling of Nonreactive Tracer and Lithium Breakthrough

International Nuclear Information System (INIS)

Turin, H.J.; Soll, W.E.

2002-01-01

The Busted Butte Unsaturated-Zone Transport Test Facility is located approximately 8 km southeast of Yucca Mountain, and was designed to address uncertainties associated with flow and transport in the UZ site-process models for Yucca Mountain. Busted Butte Phase 2 consisted of a 10m x 10m x 7m test block. From July 1988 through October 2000, complex tracer mixtures were injected continuously at 77 discrete points located along eight parallel 10-m boreholes arranged in two horizontal planes. In August 1999, iodide was added to the tracer mixture to explore the effects of initial hydraulic transients. During the course of the experiment, porewater samples were collected at regular intervals using sorbing-paper collection pads, emplaced into fifteen horizontal and inclined 10-m collection boreholes, oriented perpendicular to the injection boreholes. Potential travel distances ranged from 20 cm to over 500 cm. Nonreactive tracer and weakly sorbing lithium breakthrough was observed at most of the collection points during the injection period. Following termination of injection, approximately 800 rock samples were collected using overcore and mineback techniques, and analyzed for tracer concentration. Rock analyses are discussed in a subsequent paper. To complement complex 3-dimensional finite-element modeling of the entire block, bromide, iodide, and lithium breakthrough onto the collection pads has been modeled with CXTFIT. This simple 1-dimensional analytical code uses a non-linear curve-fitting routine to estimate transport parameters including apparent velocity, dispersivity, and field retardation factors. Preliminary results show that: (1) Bromide and iodide behaved similarly, despite the fact that bromide was injected in a strongly transient flow field, while iodide injection began after flow had approached steady state conditions. (2) With the exception of the closest collection points, tracer velocities remained relatively constant, indicating that transport was

Microstructure and mechanical properties of resistance upset butt welded 304 austenitic stainless steel joints

International Nuclear Information System (INIS)

Sharifitabar, M.; Halvaee, A.; Khorshahian, S.

2011-01-01

Graphical abstract: Three different microstructural zones formed at different distances from the joint interface in resistance upset butt welding of 304 austenitic stainless steel. Highlights: → Evaluation of microstructure in resistance upset welding of 304 stainless steel. → Evaluation of welding parameters effects on mechanical properties of the joint. → Introducing the optimum welding condition for joining stainless steel bars. -- Abstract: Resistance upset welding (UW) is a widely used process for joining metal parts. In this process, current, time and upset pressure are three parameters that affect the quality of welded products. In the present research, resistance upset butt welding of 304 austenitic stainless steel and effect of welding power and upset pressure on microstructure, tensile strength and fatigue life of the joint were investigated. Microstructure of welds were studied using scanning electron microscopy (SEM). X-ray diffraction (XRD) analysis was used to distinguish the phase(s) that formed at the joint interface and in heat affected zone (HAZ). Energy dispersive spectroscopy (EDS) linked to the SEM was used to determine chemical composition of phases formed at the joint interface. Fatigue tests were performed using a pull-push fatigue test machine and the fatigue properties were analyzed drawing stress-number of cycles to failure (S-N) curves. Also tensile strength tests were performed. Finally tensile and fatigue fracture surfaces were studied by SEM. Results showed that there were three different microstructural zones at different distances from the joint interface and delta ferrite phase has formed in these regions. There was no precipitation of chromium carbide at the joint interface and in the HAZ. Tensile and fatigue strengths of the joint decreased with welding power. Increasing of upset pressure has also considerable influence on tensile strength of the joint. Fractography of fractured samples showed that formation of hot spots at

Expanding Mathematics Preparation of Elementary and Middle School Teachers

Science.gov (United States)

Buck, Robert E.

2004-01-01

One of the major problems facing education today is the inadequate mathematics' preparation of pre-college students and their teachers. Most colleges and universities have well established programs for students planning to teach mathematics at the secondary schools; however, in many institutions pre-secondary mathematics has been addressed only…

On detection and automatic tracking of butt weld line in thin wall pipe welding by a mobile robot with visual sensor

International Nuclear Information System (INIS)

Suga, Yasuo; Ishii, Hideaki; Muto, Akifumi

1992-01-01

An automatic pipe welding mobile robot system with visual sensor was constructed. The robot can move along a pipe, and detect the weld line to be welded by visual sensor. Moreover, in order to make an automatic welding, the welding torch can track the butt weld line of the pipes at a constant speed by rotating the robot head. Main results obtained are summarized as follows: 1) Using a proper lighting fixed in front of the CCD camera, the butt weld line of thin wall pipes can be recongnized stably. In this case, the root gap should be approximately 0.5 mm. 2) In order to detect the weld line stably during moving along the pipe, a brightness distribution measured by the CCD camera should be subjected to smoothing and differentiating and then the weld line is judged by the maximum and minimum values of the differentials. 3) By means of the basic robot system with a visual sensor controlled by a personal computer, the detection and in-process automatic tracking of a weld line are possible. The average tracking error was approximately 0.2 mm and maximum error 0.5 mm and the welding speed was held at a constant value with error of about 0.1 cm/min. (author)

Anxiety and Self-Efficacy as Sequential Mediators in US College Students' Career Preparation

Science.gov (United States)

Deer, LillyBelle K.; Gohn, Kelsey; Kanaya, Tomoe

2018-01-01

Purpose: Current college students in the USA are reporting higher levels of anxiety over career planning than previous generations, placing pressure on colleges to provide effective career development opportunities for their students. Research has consistently found that increasing career-related self-efficacy is particularly effective at…

“How It’s Done”: The Role of Mentoring and Advice in Preparing the Next Generation of Historically Black College and University Presidents

Directory of Open Access Journals (Sweden)

Felecia Commodore

2016-06-01

Full Text Available The college and university presidency is one of the most coveted positions in academe. Due to the projected retirements of current Historically Black College and University (HBCU presidents, the researchers interviewed 21 current presidents, institutional board members, and presidential search firm personnel to explore what current HBCU leadership identifies as important mentoring/mentee practices, mentoring/mentee opportunities, and professional advice for HBCU presidential aspirants to consider. The findings, based on the coding and analysis of semi-structured qualitative interviews, revealed that self-awareness, focusing on the essential aspects of the job and not merely the perks, openness to being mentored and willingness to shadow a successful leader, experience in serving in various administrative capacities, participating in professional leadership development activities, earning of a terminal degree, displaying humility, understanding academic politics, and learning how to present oneself as an executive is important in the preparation of a leader of an HBCU.

Psychological Comparisons of Undergraduate and Graduate College of Education Students

Science.gov (United States)

Illovsky, Michael E.

2010-01-01

This is a study of 57 graduate students and 229 undergraduate students in classes preparing them to be teachers. The survey extended over a period of five years, involving 14 classes in a college of education. Using the Personality Research Form scales to compare the psychological aspects of undergraduate and graduate college of education…

Menu of College Readiness Indicators and Supports. College Readiness Indicator Systems (CRIS) Resource Series

Science.gov (United States)

John W. Gardner Center for Youth and Their Communities, 2014

2014-01-01

School communities across the country are working hard to comply with state and federal policies requiring that all students be prepared for success in college. Technological advances and new reporting requirements make data on students and schools more accessible than ever--but more and better data alone are not enough to meet the challenges…

Constraints in the preparation of mathematics teachers: the way ...

African Journals Online (AJOL)

The study investigated the constraints in the preparation of Mathematics teachers in the colleges of education and the possible way forward. It used an ex-post facto research design in the colleges of education in Nigeria. 165 final year students of Mathematics and 30 Mathematics lecturers were selected samples from the 6 ...

Composite Sunrise Butte pluton: Insights into Jurassic–Cretaceous collisional tectonics and magmatism in the Blue Mountains Province, northeastern Oregon

Science.gov (United States)

Johnson, Kenneth H.; Schwartz, J.J.; Žák, Jiří; Verner, Krystof; Barnes, Calvin G.; Walton, Clay; Wooden, Joseph L.; Wright, James E.; Kistler, Ronald W.

2015-01-01

The composite Sunrise Butte pluton, in the central part of the Blue Mountains Province, northeastern Oregon, preserves a record of subduction-related magmatism, arc-arc collision, crustal thickening, and deep-crustal anatexis. The earliest phase of the pluton (Desolation Creek unit) was generated in a subduction zone environment, as the oceanic lithosphere between the Wallowa and Olds Ferry island arcs was consumed. Zircons from this unit yielded a 206Pb/238U age of 160.2 ± 2.1 Ma. A magmatic lull ensued during arc-arc collision, after which partial melting at the base of the thickened Wallowa arc crust produced siliceous magma that was emplaced into metasedimentary rocks and serpentinite of the overthrust forearc complex. This magma crystallized to form the bulk of the Sunrise Butte composite pluton (the Sunrise Butte unit; 145.8 ± 2.2 Ma). The heat necessary for crustal anatexis was supplied by coeval mantle-derived magma (the Onion Gulch unit; 147.9 ± 1.8 Ma).The lull in magmatic activity between 160 and 148 Ma encompasses the timing of arc-arc collision (159–154 Ma), and it is similar to those lulls observed in adjacent areas of the Blue Mountains Province related to the same shortening event. Previous researchers have proposed a tectonic link between the Blue Mountains Province and the Klamath Mountains and northern Sierra Nevada Provinces farther to the south; however, timing of Late Jurassic deformation in the Blue Mountains Province predates the timing of the so-called Nevadan orogeny in the Klamath Mountains. In both the Blue Mountains Province and Klamath Mountains, the onset of deep-crustal partial melting initiated at ca. 148 Ma, suggesting a possible geodynamic link. One possibility is that the Late Jurassic shortening event recorded in the Blue Mountains Province may be a northerly extension of the Nevadan orogeny. Differences in the timing of these events in the Blue Mountains Province and the Klamath–Sierra Nevada Provinces suggest that

Lifelong Learning: Characteristics, Skills, and Activities for a Business College Curriculum

Science.gov (United States)

Love, Douglas

2011-01-01

The literature places great importance on lifelong learning, but leaves its meaning open to a wide range of interpretations. Much is written about lifelong learning after leaving school with little about business college preparation of lifelong learners. This is the departure point for the study's providing one college's operational definition of…

The Impact of Taking a College Pre-Calculus Course on Students' College Calculus Performance

Science.gov (United States)

Sonnert, Gerhard; Sadler, Philip M.

2014-01-01

Poor performance on placement exams keeps many US students who pursue a STEM (science, technology, engineering, mathematics) career from enrolling directly in college calculus. Instead, they must take a pre-calculus course that aims to better prepare them for later calculus coursework. In the USA, enrollment in pre-calculus courses in two- and…

Aluminum 6060-T6 friction stir welded butt joints: fatigue resistance with different tools and feed rates

International Nuclear Information System (INIS)

Baragetti, S.; D'Urso, G.

2014-01-01

The fatigue behavior of AA6060-T6 friction stir welded butt joints was investigated. The joints were produced by using both a standard and a threaded tri-flute cylindrical-tool with flat shoulder. The friction stir welding process was carried out using different feed rates. Preliminary tensile tests, micrograph analyses and hardness profile measurements across the welds were carried out. Welded and unwelded fatigue samples were tested under axial loading (R = 0.1) with upper limits of 10 4 and 10 5 cycles, using threaded and unthreaded (standard) tools at different feed rates. The best tensile and fatigue performance was obtained using the standard tool at low feed rate.

Butt pressure welding of wheels from vehicles consisting of steel and aluminium; Pressstumpfschweissen von Fahrzeugraedern aus Stahl und Aluminium

Energy Technology Data Exchange (ETDEWEB)

Grobelin, K. [Hess Engineering AG, Frauenfeld (Switzerland)

2001-07-01

Every year in Europe 35 million wheels for vehicles are produced. Most of them are wheels consisting of metal tapes, both of steel and of aluminium alloys. The manufacturing of wheels is explained, in detail the method known as DC upset welding used for butt joints of wheel-rims. The engaged machinery, the specials of welding various materials, the limits of the method, and the quality assurance are discussed. Advantages of the applied method are joints of first-class quality, high productivity, energy saving and environmental cleanness. (orig.)

Restaurant Training Recipe At Triton College

Science.gov (United States)

Quagliano, Joseph

1974-01-01

The successful restaurant training program at Triton College (Illinois) involves a broadly based, two-year curriculum offering practical training in nearly all the areas associated with a comprehensive food operation--management, food preparation, menu planning, nutrition, personnel vending, dining room service, and cost control. (Author/EA)

Oakton Community College Annual Report to the Community, Fiscal Year 1996.

Science.gov (United States)

Oakton Community Coll., Des Plaines, IL.

This 1996 annual report from Oakton Community College in Illinois was prepared to inform the community about the college's operations and finances, but in a more condensed, user friendly format than the comprehensive financial report. It includes statements from the board chairman and president, a mission statement, and a description of the board…

Predictors of College Readiness: An Analysis of the Student Readiness Inventory

Science.gov (United States)

Wilson, James K., III

2012-01-01

The purpose of this study was to better predict how a first semester college freshman becomes prepared for college. The theoretical framework guiding this study is Vrooms' expectancy theory, motivation plays a key role in success. This study used a hierarchical multiple regression model. The independent variables of interest included high school…

Food Follies: Food Safety for College Students

OpenAIRE

Osborne, Michelle

2010-01-01

This project involves the production and dissemination of a basic food storage and safety course geared toward college students. The course covers basic preparation, sanitation, proper cooking temperatures, chilling and storage, as well as common pathogens to be aware of. MALS

Requirements to gap widths and clamping for CO2 laser butt welding

DEFF Research Database (Denmark)

Gong, Hui; Juhl, Thomas Winther

1999-01-01

In the experimental study of fixturing and gap width requirements a clamping device for laser butt welding of steel sheets has been developed and tested. It has fulfilled the work and made the gap width experiments possible.It has shown that the maximum allowable gap width to some extent...... is inversely related to the welding speed. Also larger laser power leads to bigger allowable gap widths. The focal point position, though, has little influence on the maximum allowable gap width.During analysis X-ray photos show no interior porosity in the weld seam. Other methods have been applied to measure...... responses from variations in welding parameters.The table below lists the results of the study, showing the maximum allowable gap widths and some corresponding welding parameters.Maximum allowable Gap Width; Welding Speed; Laser Power:0.10 mm2 m/min2, 2.6 kW0.15 mm1 m/min2 kW0.20 mm1 m/min2.6 kW0.30 mm0.5 m...

The Search for Hot Jupiters using Red Buttes Observatory

Science.gov (United States)

Sorber, Rebecca L.; Kar, Aman; Hancock, Daniel A.; Leuquire, Jacob D.; Suhaimi, Afiq; Kasper, David; Jang-Condell, Hannah

2018-01-01

The goal of this research is to use the University of Wyoming’s Red Buttes Observatory (RBO) to perform manual, remote, or automated observations of transiting exoplanet candidates. The data contributes to discovery of star systems that include never before identified exoplanets. RBO houses a 0.6-meter telescope and is located approximately 10 miles south of the University of Wyoming’s campus. Our targets are catalogued by the KELT (Kilodegree Extremely Little Telescope) Survey, a photometric search for transiting exoplanets around bright main sequence stars. The KELT Follow-up Network (KELT-FUN), a collaboration of small-aperture telescope users located all over the world, confirms new exoplanet candidates. As part of KELT-FUN, students use the RBO to monitor candidates identified by the KELT team. RBO typically detects transits around stars that are 8-12 in V magnitude, with transit durations of ~1-4 hours and full depth relative changes in brightness above 2 mmags. Using AstroImageJ, we process the data and we look for any indication of a transit occurrence in the processed lightcurve which might confirm the presence of the potential exoplanet. Our team has contributed over 50 light curves to KELT-FUN to date. We are able to compare our data with simultaneous observations by other members of KELT-FUN to maximize the utility of our observations. This project gives undergraduates an authentic scientific research experience, learning how to operate an observatory, process data, and participate in a scientific collaboration.

Sleep Patterns and Academic Performance During Preparation for College Entrance Exam in Chinese Adolescents.

Science.gov (United States)

Wang, Guanghai; Ren, Fen; Liu, Zhijun; Xu, Guangxing; Jiang, Fan; Skora, Elizabeth; Lewin, Daniel S

2016-04-01

Deficient sleep is linked to detrimental outcomes in health and school performance for adolescents. This study characterized sleep patterns in Chinese adolescents preparing for the College Entrance Exam (CEE) and evaluated the association between sleep patterns, self-rated academic performance, and the CEE scores. A sample of 481 Chinese adolescents in 12th grade (ages 16-19 years) completed questionnaires about sleep patterns, academic performance, academic stress, and sociodemographic factors 4-6 weeks before the CEE in June 2013. The CEE scores for each student also were obtained. A total of 21% of the students had bedtimes after 12:00 am, 78.3% had sleep latency longer than 30 minutes, 14.6% had wake time earlier than 6:00 am, and the vast majority (94.4%) had sleep duration less than 8 hours. After adjusting for selected confounders such as academic stress, prolonged sleep latency was associated with poorer self-reported academic performance, and late bedtime was associated with higher CEE score. Our findings highlight the complex association between sleep and academic performance. Assessing and monitoring sleep patterns in adolescents during periods of high academic demand and stress may yield important recommendations for their health and safety as well as establishing optimal sleep and study habits. © 2016, American School Health Association.

Prediction of residual stresses and distortions due to laser beam welding of butt joints in pressure vessels

International Nuclear Information System (INIS)

Moraitis, G.A.; Labeas, G.N.

2009-01-01

A two-level three-dimensional Finite Element (FE) model has been developed to predict keyhole formation and thermo-mechanical response during Laser Beam Welding (LBW) of steel and aluminium pressure vessel or pipe butt-joints. A very detailed and localized (level-1) non-linear three-dimensional transient thermal model is initially developed, which simulates the mechanisms of keyhole formation, calculates the temperature distribution in the local weld area and predicts the keyhole size and shape. Subsequently, using a laser beam heat source model based on keyhole assumptions, a global (level-2) thermo-mechanical analysis of the LBW butt-joint is performed, from which the joint residual stresses and distortions are calculated. All the major physical phenomena associated to LBW, such as laser heat input via radiation, heat losses through convection and radiation, as well as latent heat are accounted for in the numerical model. Material properties and particularly enthalpy, which is very important due to significant material phase changes, are introduced as temperature-dependent functions. The main advantages of the developed model are its efficiency, flexibility and applicability to a wide range of LBW problems (e.g. welding for pressure vessel or pipework construction, welding of automotive, marine or aircraft components, etc). The model efficiency arises from the two-scale approach applied. Minimal or no experimental data are required for the keyhole size and shape computation by the level-1 model, while the thermo-mechanical response calculation by the level-2 model requires only process and material data. Therefore, it becomes possible to efficiently apply the developed simulation model to different material types and varying welding parameters (i.e. welding speed, heat source power, joint geometry, etc.) in order to control residual stresses and distortions within the welded structure

The Path to College Calculus: The Impact of High School Mathematics Coursework

Science.gov (United States)

Sadler, Philip; Sonnert, Gerhard

2018-01-01

This study addresses a longstanding question among high school mathematics teachers and college mathematics professors: Which is the best preparation for college calculus-- (a) a high level of mastery of mathematics considered preparatory for calculus (algebra, geometry, precalculus) or (b) taking calculus itself in high school? We used a data set…

Hunter College Dance Therapy Masters Program.

Science.gov (United States)

Schmais, Claire; White, Elissa Q.

Described is development of the Hunter College dance therapy 18-month 30-credit masters program involving 33 adult students, (in two classes beginning in 1971 and 1972), an educational model, internship in psychiatric institutions, and preparation of instructional materials. The dance therapist is said to incorporate the psychiatric patient's…

A Study on the Saving Method of Plate Jigs in Hull Block Butt Welding

Science.gov (United States)

Ko, Dae-Eun

2017-11-01

A large amount of plate jigs is used for alignment of welding line and control of welding deformations in hull block assembly stage. Besides material cost, the huge working man-hours required for working process of plate jigs is one of the obstacles in productivity growth of shipyard. In this study, analysis method was proposed to simulate the welding deformations of block butt joint with plate jigs setting. Using the proposed analysis method, an example simulation was performed for actual panel block joint to investigate the saving method of plate jigs. Results show that it is possible to achieve two objectives of quality accuracy of the hull block and saving the plate jig usage at the same time by deploying the plate jigs at the right places. And the proposed analysis method can be used in establishing guidelines for the proper use of plate jigs in block assembly stage.

A Correlation of Community College Math Readiness and Student Success

Science.gov (United States)

Brown, Jayna Nicole

Although traditional college students are more prepared for college-level math based on college admissions tests, little data have been collected on nontraditional adult learners. The purpose of this study was to investigate relationships between math placement tests and community college students' success in math courses and persistence to degree or certificate completion. Guided by Tinto's theory of departure and student retention, the research questions addressed relationships and predictability of math Computer-adaptive Placement Assessment and Support System (COMPASS) test scores and students' performance in math courses, persistence in college, and degree completion. After conducting correlation and regression analyses, no significant relationships were identified between COMPASS Math test scores and students' performance (n = 234) in math courses, persistence in college, or degree completion. However, independent t test and chi-squared analyses of the achievements of college students who tested into Basic Math (n = 138) vs. Introduction to Algebra (n = 96) yielded statistically significant differences in persistence (p = .039), degree completion (p college students' math competencies and degree achievement.

Rural/Nonrural Differences in College Attendance Patterns.

Science.gov (United States)

Byun, Soo-Yong; Irvin, Matthew J; Meece, Judith L

Using data from the National Education Longitudinal Study of 1988, this study documented college attendance patterns of rural youth in terms of the selectivity of first postsecondary institution of attendance, the timing of transition to postsecondary education, and the continuity of enrollment. The study also examined how these college attendance patterns among rural students differed from those among their non-rural counterparts and which factors explained these rural/nonrural differences. Results showed that rural youth were less likely than their nonrural counterparts to attend a selective institution. In addition, rural youth were more likely to delay entry to postsecondary education, compared to their urban counterparts. Finally, rural students were less likely than their urban counterparts to be continuously enrolled in college. Much of these rural/nonrural disparities in college attendance patterns were explained by rural/nonrural differences in socioeconomic status and high school preparation. Policy implications, limitations of the study, and future research directions are also discussed.

Unmarried parents in college.

Science.gov (United States)

Goldrick-Rab, Sara; Sorensen, Kia

2010-01-01

Noting that access to higher education has expanded dramatically in the past several decades, Sara Goldrick-Rab and Kia Sorensen focus on how unmarried parents fare once they enter college. Contrary to the expectation that access to college consistently promotes family stability and economic security, the authors argue that deficiencies in current policy lead college attendance to have adverse consequences for some families headed by unmarried parents. Although rates of college attendance have increased substantially among unmarried parents, their college completion rates are low. One explanation is inadequate academic preparation. Another is financial constraints, which can force unmarried students to interrupt their studies or increase their work hours, both of which compromise the quality of their educational experiences and the outcomes for their children. The authors point out that although many public programs offer support to unmarried parents attending college, the support is neither well coordinated nor easily accessed. Over the past three decades, loans have increasingly replaced grants as the most common form of federal and state financial aid. Confusion about what is available leads many low-income students to the two most "straightforward" sources of income--loans and work, both of which involve significant costs and can operate at cross-purposes with public forms of support. Too much work can lead to reductions in public benefits, and earnings do not always replace the lost income. A growing body of experimental evidence shows that providing social, financial, and academic supports to vulnerable community college students can improve achievement and attainment. Contextualized learning programs, for example, have enabled participants not only to move on from basic skills to credit-bearing coursework, but also to complete credits, earn certificates, and make gains on basic skills tests. Another successful initiative provided low-performing students with

Pamplin College partners with Deloitte to prepare students for sweeping changes to United States accounting profession

OpenAIRE

Ho, Sookhan

2008-01-01

Virginia Tech's Pamplin College of Business is one of two schools selected to partner with audit and consulting firm Deloitte to develop much needed college accounting curricula on the International Financial Reporting Standards (IFRS).

Math Readiness and Preparation for Competitive College Majors and Careers: The Case of Black Students.

Science.gov (United States)

Thomas, Gail E.

This study examines factors that determine the enrollment of black students in the high school math courses (i.e., advanced algebra, trigonometry, calculus) that are necessary for competitive college and major field access. The data are from a local college survey of juniors and seniors who were enrolled in eight (8) local public and private…

Accountancy, teaching methods, sex, and American College Test scores.

Science.gov (United States)

Heritage, J; Harper, B S; Harper, J P

1990-10-01

This study examines the significance of sex, methodology, academic preparation, and age as related to development of judgmental and problem-solving skills. Sex, American College Test (ACT) Mathematics scores, Composite ACT scores, grades in course work, grade point average (GPA), and age were used in studying the effects of teaching method on 96 students' ability to analyze data in financial statements. Results reflect positively on accounting students compared to the general college population and the women students in particular.

Thermo-mechanical FE-analysis of butt-welding of a Cu-Fe canister for spent nuclear fuel

International Nuclear Information System (INIS)

Josefson, B.L.; Karlsson, L.; Lindgren, L.E.; Jonsson, M.

1992-10-01

In the Swedish nuclear waste program it has been proposed that spent nuclear fuel shall be placed in composite copper-steel canisters. These canisters will be placed in holes in tunnels located some 500 m underground in a rock storage. The canisters consists of two cylinders of 4850 mm length, one inner cylinder made of steel and one outer cylinder made of copper. The outer diameter of the canister is 880 mm and the wall thickness for each cylinder is 50 mm. At the storage, the steel cylinder, which contains the spent nuclear fuel, is placed inside the copper cylinder. Thereafter, a copper end is butt welded to the copper cylinder using electron beam welding. To obtain penetration through the thickness with this weld method a backing ring is placed at the inside of the copper cylinder. In the present paper, the temperature, strain and stress fields present during welding and after cooling after welding are calculated numerically using the FE-code NIKE-2D. The aim is to use the results of the present calculations to estimate the risk for creep fracture during the subsequent design life. A large strain formulation is employed for the calculation of transient and residual stresses in the canister based on the calculated history of the temperature field present in the canister during the welding process. The contact algorithm available in NIKE-2D is used to detect possible contact between the steel and copper cylinders during the welding. To simplify the numerical calculations and reduce the computational time, rotational symmetry is assumed. For large gap distances between the steel and copper cylinders the residual stress field is calculated to have a shape similar to that observed in butt welded pipes with maximum axial stress values at the yield stress level. For small gap distances the backing ring will come in contact with the steel cylinder which leads to large residual stresses in the backing ring. The maximum accumulated plastic strain in the weld metal and

Preparing English as a Second Language Students for College Level Math

Science.gov (United States)

Valenzuela, Hector

2014-01-01

In a diverse classroom, there are students who are in need of both mathematics and English as a second language instruction. One of the challenges faced at Lake Washington Institute of Technology (LWIT) was the development of a pathway for English language learners into core academic courses at the college. In addition, English language learners…

INDONESIAN COLLEGE STUDENTS’ PERCEPTIONS OF TOEFL PREPARATION CLASS

Directory of Open Access Journals (Sweden)

Siti Masfufah

2018-02-01

Full Text Available This is the report of a pilot study of a dissertation. This study investigated what Indonesian students perceived of the TOEFL Preparation class.  The researcher interviewed 11 students of Economics. The students’ age ranged from 18 – 23 years old.  Seven of them had a job. Three of them were planning to have a job. The other one was a full-time student. This research revealed that the majority of the students were satisfied with the TOEFL Preparation class. The teacher helped them understand English compared to their knowledge before taking the TOEFL class. However, the students suggest that the duration for each meeting should be at least 120 minutes. Beside, the teacher should provide group work activities and homework. In addition, the teacher should come to class on time. Some recommendations of the findings are discussed in this paper.

Community College Leadership for the '80s. AACJC Leadership Bookshelf Series, Number 1.

Science.gov (United States)

Roueche, John E., Ed.; Baker, George A., III, Ed.

These essays were prepared by leaders with recognized success in community college and university management, who were asked to share their experiences, the techniques they have found useful, and their personal views about community college leadership. After an introduction by Dale Parnell to the importance of leadership in institutional success,…

Self-Directed Learning: College Students' Technology Preparedness Change in the Last 10 Years

Science.gov (United States)

Caravello, Michael J.; Jiménez, Joel R.; Kahl, Lois J.; Brachio, Brian; Morote, Elsa-Sofia

2015-01-01

This study compares a sample of approximately 44 first year college students in 2005 and 2015 on Long Island, New York, in their technology preparedness and self-directed instruction. The researchers used a survey instrument including demographic information focused upon students' preparation for classroom technology in high school and college.…

Petrographic Analysis and Geochemical Source Correlation of Pigeon Peak, Sutter Buttes, CA

Science.gov (United States)

Novotny, N. M.; Hausback, B. P.

2013-12-01

The Sutter Buttes are a volcanic complex located in the center of the Great Valley north of Sacramento. They are comprised of numerous inter-intruding andesite and rhyolite lava domes of varying compositions surrounded by a shallow rampart of associated tephras. The Pigeon Peak block-and-ash flow sequence is located in the rampart and made up of a porphyritic Biotite bearing Hornblende Andesite. The andesite blocks demonstrate a high degree of propylization in hornblende crystals, highly zoned plagioclase, trace olivine, and display a red to gray color gradation. DAR is an andesite dome located less than one mile from Pigeon Peak. Of the 15 to 25 andesite lava domes within four miles from Pigeon Peak, only DAR displays trace olivine, red to grey color stratification, low biotite content, and propylitized hornblende. These characteristic similarities suggest that DAR may be the source for Pigeon Peak. My investigation used microprobe analysis of the DAR and Pigeon Peak feldspar crystals to identify the magmatic history of the magma body before emplacement. Correlation of the anorthite zoning within the feldspars from both locations support my hypothesis that DAR is the source of the Pigeon Peak block-and-ash flow.

Influence of incorporation of ZrO2 nanoparticles on the repair strength of polymethyl methacrylate denture bases

Directory of Open Access Journals (Sweden)

Gad MM

2016-10-01

Full Text Available Mohammed M Gad,1 Ahmed Rahoma,2,3 Ahmad M Al-Thobity,1 Aws S ArRejaie4 1Department of Substitutive Dental Sciences, 2Department of Restorative Dental Sciences, College of Dentistry, University of Dammam, Dammam, Saudi Arabia; 3Department of Dental Materials, College of Dentistry, Al-Azhar University, Assiut, Egypt; 4Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia Background: Repeated fracture of the denture base is a common problem in prosthodontics, and it represents a nuisance and a time sink for the clinician. Therefore, the possibility of increasing repair strength using new reinforcement materials is of great interest to prosthodontists.Aim of the study: This study aimed to evaluate the effects of incorporation of zirconia nanoparticles (nano-ZrO2 on the flexural strength and impact strength of repaired polymethyl methacrylate (PMMA denture bases.Materials and methods: One hundred eighty specimens of heat-polymerized acrylic resin were fabricated (90 for each test and divided into three main groups: one control group (intact specimens and two groups divided according to surface design (45° bevels and butt joints, in which specimens were prepared in pairs to create 2.5 mm gaps. Nano-ZrO2 was added to repair resin in 2.5 wt%, 5 wt%, and 7.5 wt% concentrations of acrylic powder. A three-point bending test was used to measure flexural strength, and a Charpy-type test was used to measure impact strength. Scanning electron microscopy was used to analyze the fracture surfaces and nano-ZrO2 distribution. The results were analyzed with a paired sample t-test and an unpaired t-test, with a P-value of ≤0.05 being significant.Results: Incorporation of nano-ZrO2 into the repair resin significantly increased flexural strength (P<0.05. The highest value was found in the bevel group reinforced with 7.5% nano-ZrO2, whereas the lowest value was found in the butt group reinforced with 2.5% nano

Medicinal Plant Research Group, School of Pharmacy, College of ...

African Journals Online (AJOL)

Medicinal Plant Research Group, School of Pharmacy, College of Health Sciences, University of Nairobi,. P.O. Box 19676-00202, ... of plant used, the dosage form and procedures for preparation and ... by thermal gravimetric methods. In finely.

Preparing for the biggest experiment on earth

CERN Multimedia

2007-01-01

"An international team of over 2'000 scientists, led by Professor Tejinder Virdee from Imperial College London's Department of Physics is stepping up preparations for the world's largest ever physics experiment, starting next year at CERN near Geneva, Switzerland." (1 page)

Making It Happen: How Career Academies Can Build College and Career Exploration Programs

Science.gov (United States)

Visher, Mary G.; Altuna, Jacklyn N.; Safran, Stephanie

2013-01-01

The phrase "preparing students for college and career" has become so ubiquitous that it has become almost a mantra in educators' discourse in recent years. Whether mentioned in the Common Core State Standards, in the mission statements of high schools, or in political campaigns, improving the college and career readiness of young people…

Engaging New College Students in Metacognition for Critical Thinking: A Developmental Education Perspective

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Cummings, Chris

2015-01-01

Teaching students to think critically is one of the major goals of higher education. Many educators at the college level recognize this and expect students to demonstrate critical thinking early in their college experience, however for some students, a lack of preparation for these expectations poses an immediate and substantial challenge during…

Preparing Teachers to Teach Digital Citizenship

NARCIS (Netherlands)

Searson, Michael; Voogt, Joke; Whittier, David; Plants, Robert; Gibson, David; Sutton, Bonnie; Ochoa, Marilyn; Sutton, Vic; McBride, Ron; Searson, Michael

2013-01-01

A team of SITE leaders was awarded a highly competitive “Digital Citizenship Award” from Facebook to explore the role of digital citizenship in teacher education. The focus of the SITE “Preparing Teachers to Teach Digital Citizenship” project is the development of a college based course, available

The Managerial Activities and Leadership Roles of Five Achieving the Dream Leader College Presidents

Science.gov (United States)

Mace, Teresa Marie Taylor

2013-01-01

A significant increase in community colleges' (CC) presidential retirements is resulting in a huge loss of critical knowledge and experience. Recognition of this has led to numerous efforts and initiatives to prepare future community college leaders. These efforts have included numerous attempts to identify the competencies, skills, and leadership…

Teacher Educators' Views on Inclusive Education and Teacher Preparation in Ghana

Science.gov (United States)

Nketsia, William; Saloviita, Timo; Gyimah, Emmanuel Kofi

2016-01-01

The crucial role of initial teacher education programmes and teacher educators in preparing effective inclusive practitioners has been universally acknowledged. This study explored the attitudes of 125 teacher educators from four colleges of education towards inclusive education, their views and concerns about teacher preparation and the…

A Phenomenological Study of How High School Advanced Placement Classes Prepared First-Generation College Students for Postsecondary Education

Science.gov (United States)

Snyder, Scott

2013-01-01

This study investigated the lived experiences of first-generation college students and the perceived influence of taking high school Advanced Placement (AP) courses on their college education. The following research questions were addressed: (a) what motivated students to consider going to college, (b) what was their experience in taking AP…

Assessing the Transition of Transfer Students from Community Colleges to a University.

Science.gov (United States)

Berger, Joseph B.; Malaney, Gary D.

2003-01-01

Examines how pretransfer experiences and preparation, along with posttransfer experiences, influence the adjustment of community college transfer students to life on a four-year university campus. Results indicate that students who are best informed and who have most actively prepared for transfer are most likely to achieve higher grades and be…

A Three-Year Journey: Lessons Learned from Integrating Teacher Preparation and Urban Studies

Science.gov (United States)

Yontz, Brian D.

2012-01-01

This narrative outlines the process of how an independent liberal arts college integrated coursework and learning experiences focused on urban school teacher preparation with an existing university program in Urban Studies. Programmatic changes and additions to teacher education programs at independent liberal arts colleges are often very…

The Coming Challenge: Are Community Colleges Ready for the New Wave of Contextual Learners?

Science.gov (United States)

Hull, Dan; Souders, John C., Jr.

1996-01-01

Defines contextual learning, or presenting new information to students in familiar contexts. Argues that community colleges must be ready for an anticipated increase in contextual learners due to its use in tech prep programs. Describes elements of contextual learning, its application in the classroom, and ways that colleges can prepare for…

Success after College: What Students, Parents, and Educators Need to Know and Do

Science.gov (United States)

Humphreys, Debra

2013-01-01

A college education is expensive. While it is clearly worth the investment--and even worth going into at least some debt to achieve--students need to know that not all college degree programs are equal; not all are designed to prepare them for long-term success. This article presents how to bridge the awareness and communications gaps between…

Summer Institute in Biomedical Engineering for College Teachers

Science.gov (United States)

Cleaver, T. G.; And Others

1973-01-01

Discusses the objectives, curricula, and accomplishments of an interdisciplinary summer institute designed to prepare college teachers qualified in both the life sciences and engineering. Indicates that joint educational programs between engineering, science, and medical faculties are completely feasible if each group is interested in the other…

Broadening Participation: Mentoring Community College Students in a Geoscience REU

Science.gov (United States)

Smith, M.; Osborn, J.

2015-12-01

Increasingly, REUs are recruiting from community colleges as a means of broadening participation of underrepresented minorities, women, and low-income students in STEM. As inclusion of community college students becomes normalized, defining the role of science faculty and preparing them to serve as mentors to community college students is a key component of well-designed programs. This session will present empirical research regarding faculty mentoring in the first two years of an NSF-REU grant to support community college students in a university's earth and environmental science labs. Given the documented benefits of undergraduate research on students' integration into the scientific community and their career trajectory in STEM, the focus of the investigation has been on the processes and impact of mentoring community college STEM researchers at a university serving a more traditionally privileged population; the degree to which the mentoring relationships have addressed community college students needs including their emotional, cultural and resource needs; and gaps in mentor training and the mentoring relationship identified by mentors and students.

Ethical Dilemmas and Emergent Values Encountered by Working College Students: Implications for Marketing Educators

Science.gov (United States)

Bush, Victoria D.; Smith, Rachel Korthage; Bush, Alan J.

2013-01-01

A large body of pedagogical research exists on developing curricula and ethics training tools to prepare college graduates for entering the workforce. However, many college students are "already" in the workforce while they attend school. Many of these jobs are entry-level or frontline employee positions in retail or service industries,…

Principles for Community College Finance: Discussion Paper.

Science.gov (United States)

Keating, Joseph P.

In preparation for the 1987 demise of the current community college funding mechanism in California, this discussion paper reviews the current fiscal situation in the state and considers the needs that should be addressed in the finance mechanism that would become effective in July 1987. Background information is presented on the history of the…

Gender differences in the relationships among parenting styles and college student mental health.

Science.gov (United States)

Barton, Alison L; Kirtley, Michael S

2012-01-01

Levels of student depression may increase as stress increases; parenting styles may be one indirect source of stress. The authors examined the role of parenting style in relationship to student stress, anxiety, and depression, with focused attention on gender differences. Participants were 290 undergraduate students (58% female, mean age = 19). Cross-sectional design. Participants completed surveys containing measures of parenting styles, college stress, anxiety, and depression. Anxiety and stress acted as mediators between some maternal parenting styles and female student depression. No mediational relationships were found for male student ratings. Daughters may be more susceptible to the influences of maternal parenting styles, which can either prepare or fail to prepare them for management and avoidance of stressors that are encountered during the college transition. College counseling centers and student affairs personnel may wish to focus attention on the instruction of self-management and problem-solving skills for incoming students.

The First Year of College: Understanding Student Persistence in Engineering

Science.gov (United States)

Hayden, Marina Calvet

This research study aimed to expand our understanding of the factors that influence student persistence in engineering. The unique experiences of engineering students were examined as they transitioned into and navigated their first year of college at a public research university in California. Most students provided similar responses with respect to the way they experienced the transition to college and social life. There was, however, wide student response variation regarding their experience of academic life and academic policies, as well as in their level of pre-college academic preparation and financial circumstances. One key finding was that students' experiences during the first year of college varied widely based on the extent to which they had acquired organizational and learning skills prior to college. The study used a mixed methods approach. Quantitative and qualitative data were collected through an online survey and one-on-one interviews conducted with freshman students near the end of their first year of college. The theoretical foundations of this study included Astin's Theory of Student Involvement and Tinto's Theory of Student Departure. The design of the study was guided by these theories which emphasize the critical importance of student involvement with the academic and social aspects of college during the first year of college.

3 CFR 8404 - Proclamation 8404 of August 30, 2009. National Historically Black Colleges and Universities Week...

Science.gov (United States)

2010-01-01

..., to the growth of local communities, and to our Nation's overall economy. This week, we celebrate the... new, innovative, and ambitious strategies to help the next generation of Americans successfully complete college and prepare themselves for the global economy. During National Historically Black Colleges...

The speciation of iodine in the salt impacted Black Butte soil series along the Virgin river, Nevada, USA

International Nuclear Information System (INIS)

Steinberg, Spencer M.; Buck, Brenda; Morton, Janice; Dorman, James

2008-01-01

Salt-impacted soils occur in floodplains, wetlands and backswamps in arid climates. These soils become sinks or temporary storage sites for soluble salts and contaminants including agricultural chemicals, industrial pollutants and radionuclides such as 129 I. The vertical distribution of I in the Black Butte soil series along the Virgin river was assessed and the distribution of I between I - , IO 3 - and organically bound I was determined. The speciation of I was compared to the organic C content, specific components of the organic C, and clay content. This study indicates that organic I was the most abundant form of I in these soil samples and that the content of organic I generally correlated to total organic matter and lignin (as measured by chemolysis) of the samples

3-D Characteristics of the Residual Stress in the Plate Butt Weld Between SA508 and F316L SS

Energy Technology Data Exchange (ETDEWEB)

Lee, Kyoung Soo; Kim, Tae Ryong [Korea Electric Power Research Institute, Daejeon (Korea, Republic of); Park, Jai Hak [Chungbuk National University, Cheongju (Korea, Republic of); Kim, Man Won [GNEC, Daejeon (Korea, Republic of); Cho, Seon Yeong [KLES, Daejeon (Korea, Republic of)

2009-04-15

This study is performed to check the three dimensional characteristics of residual stress in the dissimilar metal weld. Although two dimensional analysis has been widely used for the assessment of weld residual stress, it has limitations to understand the stress distribution of the third direction. 3-D analysis was done to understand residual stress distribution of the welded plate. A simple butt-welded plate was considered to show the stress variation on all direction. A mock-up plate weldment was fabricated with SA-508 and F316L, which are widely used in nuclear power plants. The analysis results were validated with the measured values in the mock-up.

Simulation and experimental study on distortion of butt and T-joints using WELD PLANNER

International Nuclear Information System (INIS)

Sulaiman, Mohd Shahar; Manurung, Yupiter HP; Rahim, Mohammad Ridzwan Abdul Mohd; Redza, Ridhwan; Lidam, Robert Ngendang Ak.; Abas, Sunhaji Kiyai; Tham, Ghalib; Haruman, Esa; Chau, Chan Yin

2011-01-01

This paper investigates the capability of linear thermal elastic numerical analysis to predict the welding distortion that occurs due to GMAW process. Distortion is considered as the major stumbling block that can adversely affect the dimensional accuracy and thus lead to expensive corrective work. Hence, forecast of distortion is crucially needed and ought to be determined in advance in order to minimize the negative effects, improve the quality of welded parts and finally to reduce the production costs. In this study, the welding deformation was simulated by using relatively new FEM software WELD PLANNER developed by ESI Group. This novel Welding Simulation Solution was employed to predict welding distortion induced in butt and T-joints with thickness of 4 mm. Low carbon steel material was used for the simulation and experimental study. A series of experiments using fully automated welding process were conducted for verification purpose to measure the distortion. By comparing between the simulation and experimental results, it was found out that this program code offered fast solution analysis time in estimating weld induced distortion within acceptable accuracy

Simulation and experimental study on distortion of butt and T-joints using WELD PLANNER

Energy Technology Data Exchange (ETDEWEB)

Sulaiman, Mohd Shahar; Manurung, Yupiter HP; Rahim, Mohammad Ridzwan Abdul Mohd; Redza, Ridhwan; Lidam, Robert Ngendang Ak.; Abas, Sunhaji Kiyai; Tham, Ghalib [Universiti Teknologi MARA, Kuala Lumpur (Malaysia); Haruman, Esa [Bakrie University, Jakarta (Indonesia); Chau, Chan Yin [ESI Group, Kuala Lumpur (Malaysia)

2011-10-15

This paper investigates the capability of linear thermal elastic numerical analysis to predict the welding distortion that occurs due to GMAW process. Distortion is considered as the major stumbling block that can adversely affect the dimensional accuracy and thus lead to expensive corrective work. Hence, forecast of distortion is crucially needed and ought to be determined in advance in order to minimize the negative effects, improve the quality of welded parts and finally to reduce the production costs. In this study, the welding deformation was simulated by using relatively new FEM software WELD PLANNER developed by ESI Group. This novel Welding Simulation Solution was employed to predict welding distortion induced in butt and T-joints with thickness of 4 mm. Low carbon steel material was used for the simulation and experimental study. A series of experiments using fully automated welding process were conducted for verification purpose to measure the distortion. By comparing between the simulation and experimental results, it was found out that this program code offered fast solution analysis time in estimating weld induced distortion within acceptable accuracy.

IE Information No. 86-104: Unqualified butt splice connectors identified in qualified penetrations

International Nuclear Information System (INIS)

Jordan, E.L.

1992-01-01

During an NRC equipment qualification (EQ) inspection at Dresden Nuclear Power Station, May 19--23, 1986, a deficiency was discovered concerning a lack of similarity between tested and installed nylon insulated butt splices in EQ qualified GE electrical penetrations. commonwealth Edison sent four sample splices removed from Quad Cities Nuclear Power Station to Wyle Laboratory to further substantiate their qualification for use in a harsh environment. These splices were identical to those installed at Dresden. During the testing performed at Wyle Laboratory December 4--5, 1986, all four samples exhibited excessive leakage currents to ground when exposed to a steam environment. Commonwealth Edison consequently declared the splices unqualified and shut down its Quad Cities Unit 1 to rework the splices by wrapping them with previously qualified tape. Dresden Unit 2 has similarly reworked the splices by wrapping them with tape. Duane Arnold Energy Center also has commenced a shutdown in order to make repairs. The short circuits that occurred appeared to start by condensation entering the splice between the wire insulation and the nylon tubing. The arcing caused insulation degradation that then allowed arcs to pass through the insulation to the enclosure

College Choices Guide for Migrant Students and Parents = Guia de Elecciones de Universidades para Estudiantes Migrantes y sus Padres.

Science.gov (United States)

Eddy/Northeast Health, Troy, NY.

This brief guide is a planning outline to help migrant students and parents prepare for, choose, and apply to college. The first section, "Thinking About College," offers specific tips for each grade from 9-12; discusses high school graduation requirements and college admission requirements, using Johnston County (North Carolina) schools and the…

"What Am I Gonna Be Losing?" School Culture and the Family-Based College-Going Dilemmas of Black and Latino Adolescent Boys

Science.gov (United States)

Carey, Roderick L.

2018-01-01

As educators and service providers in urban schools encourage student college going at higher rates than ever, policy and practice on school improvement discourses would benefit from incorporating students' perspectives underlying family-based, "college-going dilemmas" that frame their college preparation. This qualitative article…

Community Living Skills Guide: Cooking/Food Preparation.

Science.gov (United States)

Nickovich, Marti; Kreps, Alice Roelofs

One of twenty course guides in the Community Living Skills Guide for the College for Living series, this document provides guidelines and workbook activities for the course, Cooking/Food Preparation. The series of courses for developmentally disabled adults is intended to supplement residential programs and to aid in orienting institutionalized…

Influence of preparation method on structural and magnetic ...

Indian Academy of Sciences (India)

Administrator

Influence of preparation method on structural and magnetic properties of nickel ferrite nanoparticles. BINU P JACOB, ASHOK KUMAR†, R P PANT†, SUKHVIR SINGH† and. E M MOHAMMED*. Department of Physics, Maharaja's College, Ernakulam 681 011, India. †National Physical Laboratory, New Delhi 110 012, India.

Some aspects of success performing in departments preparing ...

African Journals Online (AJOL)

In France, secondary teachers are public sector employees. Becoming a language teacher in secondary education is subject to passing public competitive entry examinations. Preparation for these examinations is provided in College Departments, which are essentially assessed on the basis of their success performance in ...

Validating the Use of AP® Exam Scores for College Course Placement. Research Report 2013-2

Science.gov (United States)

Patterson, Brian F.; Ewing, Maureen

2013-01-01

The Advanced Placement Program® (AP®) was created to provide access to rigorous, college-level curricula to motivated and prepared high school students. This study evaluated whether the AP Exam scores from the summative exams associated with 10 courses were valid for the placement of students into higher-level college courses in the subject area…

Busted Butte Unsaturated Zone Transport Test: Fiscal Year 1998 Status Report Yucca Mountain Site Characterization Program Deliverable SPU85M4

International Nuclear Information System (INIS)

Bussod, G.Y.; Turin, H.J.; Lowry, W.E.

1999-01-01

This report describes the status of the Busted Butte Unsaturated Zone Transport Test (UZTT) and documents the progress of construction activities and site and laboratory characterization activities undertaken in fiscal year 1998. Also presented are predictive flow-and-transport simulations for Test Phases 1 and 2 of testing and the preliminary results and status of these test phases. Future anticipated results obtained from unsaturated-zone (UZ) transport testing in the Calico Hills Formation at Busted Butte are also discussed in view of their importance to performance assessment (PA) needs to build confidence in and reduce the uncertainty of site-scale flow-and-transport models and their abstractions for performance for license application. The principal objectives of the test are to address uncertainties associated with flow and transport in the UZ site-process models for Yucca Mountain, as identified by the PA working group in February 1997. These include but are not restricted to: (1) The effect of heterogeneities on flow and transport in unsaturated and partially saturated conditions in the Calico Hills Formation. In particular, the test aims to address issues relevant to fracture-matrix interactions and permeability contrast boundaries; (2) The migration behavior of colloids in fractured and unfractured Calico Hills rocks; (3) The validation through field testing of laboratory sorption experiments in unsaturated Calico Hills rocks; (4) The evaluation of the 3-D site-scale flow-and-transport process model (i.e., equivalent-continuum/dual-permeability/discrete-fracture-fault representations of flow and transport) used in the PA abstractions for license application; and (5) The effect of scaling from lab scale to field scale and site scale

School Counselors Supporting the Career and College Preparedness of Students from Poverty: Using the CARE Model

Science.gov (United States)

Johnson, Glenda S.

2017-01-01

Children living in poverty face challenges progressing through the educational system prepared adequately for college and/or career (ACT, 2015; Newell, 2013). With momentum gained through national movements, such as the First Lady Michele Obama's 2014 Reach Higher initiative, and state initiatives on college and career readiness, a call has been…

The speciation of iodine in the salt impacted Black Butte soil series along the Virgin river, Nevada, USA

Energy Technology Data Exchange (ETDEWEB)

Steinberg, Spencer M. [Department of Chemistry, University of Nevada Las Vegas, Las Vegas, NV 80154 (United States)], E-mail: spencer.steinberg@unlv.edu; Buck, Brenda; Morton, Janice [Department of Geoscience, University of Nevada Las Vegas, Las Vegas, NV 80154 (United States); Dorman, James [Department of Chemistry, University of Nevada Las Vegas, Las Vegas, NV 80154 (United States)

2008-12-15

Salt-impacted soils occur in floodplains, wetlands and backswamps in arid climates. These soils become sinks or temporary storage sites for soluble salts and contaminants including agricultural chemicals, industrial pollutants and radionuclides such as {sup 129}I. The vertical distribution of I in the Black Butte soil series along the Virgin river was assessed and the distribution of I between I{sup -}, IO{sub 3}{sup -} and organically bound I was determined. The speciation of I was compared to the organic C content, specific components of the organic C, and clay content. This study indicates that organic I was the most abundant form of I in these soil samples and that the content of organic I generally correlated to total organic matter and lignin (as measured by chemolysis) of the samples.

Influence of Incentives on Performance in a Pre-College Biology MOOC

Directory of Open Access Journals (Sweden)

Suhang Jiang

2014-11-01

Full Text Available There is concern that online education may widen the achievement gap between students from different socioeconomic classes. The recent discussion of integrating massive open online courses (MOOCs into formal higher education has added fuel to this debate. In this study, factors influencing enrollment and completion in a pre-college preparatory MOOC were explored. University of California at Irvine (UCI students of all preparation levels, defined by math Scholastic Aptitude Test (SAT score, were invited to take a Bio Prep MOOC to help them prepare for introductory biology. Students with math SAT below 550 were offered the explicit incentive of an early change to the biology major upon successful completion of the MOOC and two additional onsite courses. Our results demonstrate that, among course registrants, a higher percentage of UCI students (>60% completed the course than non-UCI registrants from the general population (<9%. Female UCI students had a greater likelihood of enrolling in the MOOC, but were not different from male students in terms of performance. University students entering with low preparation outperformed students entering who already had the credentials to become biology majors. These findings suggest that MOOCs can reach students, even those entering college with less preparation, before they enter university and have the potential to prepare them for challenging science, technology, engineering, and mathematics (STEM courses.

Lost in Translation: Preparing Students to Articulate the Meaning of a College Degree

Science.gov (United States)

DuRose, Lisa; Stebleton, Michael J.

2016-01-01

The authors contend that many undergraduate students lack the ability to deftly articulate the value of their college degree, including the competencies they acquire through classroom learning and extracurricular activities. Despite the positive impact of experiential education opportunities such as service learning and internships, there is a…

Influence of the phase morphology on the weldability of PLA/PBAT-blends by using butt-welding

Science.gov (United States)

Goebel, L.; Bonten, C.

2014-05-01

The material development in the field of bioplastics is steadily increasing. It is important to examine the processability but the Investigation of further process steps is also very important. In this paper the weldability of bioplastics is discussed. Compounds of Polylactide (PLA) and Polybutyleneadipate-terephthalate (PBAT) are produced by a twin screw extruder with different mixing ratios. Tensile specimens are produced by injection moulding and the tensile tests are carried out. In order to verify the weldability, some tensile specimens are cut in halfes and butt welded. Afterwards a tensile test is performed with the welded samples and the results are compared with the values of the unwelded samples. For understanding the results, the morphology of the welds were examined and correlated. It has been found that blends with a mixing ratio of 50:50 have the lowest welding factor, because of the immiscibility of PLA and PBAT. Weld images show segregated areas that reduce the force transmission.

Comparison of Corner-Butt 45 (Cb-45 and Corner-Lap (Cl joints in friction stir welding

Directory of Open Access Journals (Sweden)

Setiawan Widia

2018-01-01

Full Text Available The 10 mm thick Aluminum 6061 plates have been corner joined using varied design and those were 45° Corner Butt and Corner Lap Joints (CB-45 & CL. Friction tool was hardened EMS 45. True experimental method was used with independent parameters is feed rate which varied at 10 mm/min, 15 mm/min and 30 mm/min respectively. Other parameter such as rotating speed was kept constant. Experiment results show that, CB-45 yields better properties than CL. The tensile strength of CB-45 reaches 163.7 MPa for 10 mm/min feed rate. Whilst CL produces joint with tensile strength equal 120 MPa for equal parameters. Microstructure observation showed that CB-45 produces fine and homogenous appearance of MgO compared to CL. This phenomenon is caused by the pin of CB-45 joint which fully penetrates the nugget zone which is not found in CL design. This microstructure in turn promotes higher tensile strength of CB-45.

Posterior indirect adhesive 
restorations: updated indications 
and the Morphology Driven 
Preparation Technique.

Science.gov (United States)

Veneziani, Marco

The aim of this article is to identify the indications for adhesively cemented restorations and to provide a correct step-by-step protocol for clinicians. New cavity preparation principles are based on morphological considerations in terms of geometry (maximum profile line and inclination of cusp lines), and structure (dentin concavity and enamel convexity). In this article, we discuss previous preparation concepts that were not designed purely for adhesive restorations and were therefore not conservative enough or suitable for adhesive procedures. The novel cavity shape consists of continuous inclined plane cavity margins (hollow chamfer or concave bevel) on axial walls, whenever they are coronal to the equatorial tooth line. A 1.2 mm-thick butt-joint preparation is performed in the interproximal box and on the axial walls when the margins are apical to the equatorial line. The occlusal surface is anatomically prepared, free of slots and angles. The author's suggestion is to avoid shoulder finish line preparation around cusps, occlusal slots, and pins, as they are less conservative, incompatible with adhesive procedures, and involve unnecessary dentin exposure. The clinical advantages of this new "anatomic" preparation design are 1) improving adhesion quality (optimizing the cutting of enamel prisms, and increasing the available enamel surface); 2) minimizing dentin exposure; 3) maximizing hard tissue preservation (the cavity being designed for cementation with reinforced composite resins, improvement of flow, and removal of excess material); 4) optimization of esthetic integration due to the inclined plane design, which permits a better blending at the transition area between tooth and restoration. These preparation principles may be effectively used for all adhesively cemented restorations, both according to traditional concepts (inlay, onlay, overlay) and new ones (additional overlay, occlusal-veneer, overlay-veneer, long-wrap overlay, adhesive crown). Thus, a

An analysis of high-performing science students' preparation for collegiate science courses

Science.gov (United States)

Walter, Karen

This mixed-method study surveyed first year high-performing science students who participated in high-level courses such as International Baccalaureate (IB), Advanced Placement (AP), and honors science courses in high school to determine their perception of preparation for academic success at the collegiate level. The study used 52 students from an honors college campus and surveyed the students and their professors. The students reported that they felt better prepared for academic success at the collegiate level by taking these courses in high school (pstudent GPA with honors science courses (n=55 and Pearson's r=-0.336), while AP courses (n=47 and Pearson's r=0.0016) and IB courses (n=17 and Pearson's r=-0.2716) demonstrated no correlation between perception of preparation and GPA. Students reported various themes that helped or hindered their perception of academic success once at the collegiate level. Those themes that reportedly helped students were preparedness, different types of learning, and teacher qualities. Students reported in a post-hoc experience that more lab time, rigorous coursework, better teachers, and better study techniques helped prepare them for academic success at the collegiate level. Students further reported on qualities of teachers and teaching that helped foster their academic abilities at the collegiate level, including teacher knowledge, caring, teaching style, and expectations. Some reasons for taking high-level science courses in high school include boosting GPA, college credit, challenge, and getting into better colleges.

Preparing English Language Learners for Complex Reading

Science.gov (United States)

Silva, Janice; Delleman, Paul; Phesia, Andria

2013-01-01

Although the Common Core state standards' goal of ensuring that every student leaves high school prepared to meet the demands of college and career is laudable, it's daunting for teachers who serve English language learners. The authors, educators at a private bilingual school in Mexico, describe how they used short excerpts of longer works giving…

Rural model dedicated education unit: partnership between college and hospital.

Science.gov (United States)

Harmon, Lisa M

2013-02-01

This article describes the pilot project development of a rural model Dedicated Education Unit (DEU) by a rural college nursing program and a rural hospital to increase student nurses' confidence and proficiency and improve recruitment of prepared rural staff nurses. Traditionally, for economies of scale, most student clinical rotations occurred in urban settings with the number of students per clinical instructor allowed by the state board of nursing. College budget constraints negated the placement of fewer than this mandated maximum number of students in a rural hospital with a clinical instructor; moreover, rural hospitals could not accommodate 10 students at one time. Rural nursing students were anxious in the urban settings, and this anxiety precluded learning in many instances. Rural hospitals face higher registered nurse vacancies than urban centers. Of the nurses applying for open positions, many were not prepared for the demands of rural nursing, resulting in increased turnover and high orientation costs. The rural model DEU addressed issues of both the nursing program and the hospital. The design and development of the rural model DEU and the advantages of the partnership for the college nursing program and the hospital are discussed. Initial outcomes and serendipitous findings from the pilot project are also discussed. Copyright 2013, SLACK Incorporated.

Maintaining academic quality assurance for teacher preparation in ...

African Journals Online (AJOL)

The essence of academic quality is to bring about totality of an improved classroom teacher for effective service delivery in the school system. Colleges of Education whose mandate is concerned with teacher preparation for basic education must consider students admission policy, funding, facilities and the entire curricula ...

Mentoring: A New Approach to Geography Teacher Preparation

Science.gov (United States)

Bednarz, Sarah Witham; Bockenhauer, Mark H.; Walk, Fred H.

2005-01-01

Geography teacher preparation is an ongoing problem for the discipline. Changes in certification requirements and federal and state educational policies have diminished the role of colleges and universities in educating teachers. At the same time, geography education reform efforts have resulted in higher standards and an increased quantity of…

Spectral image analysis of the Hopi Buttes volcanic field, Arizona, U.S.A

International Nuclear Information System (INIS)

Gabelman, J.W.; Wescott, T.F.

1987-01-01

The possibility of economic deposits, the semi-arid environment and the youth of applied remote-sensing technology suit the Hopi Buttes volcanic field as a test site for the application of multispectral image analysis to geologic interpretation and uranium evaluation. All possible enhancements of seasonal images were created in the General Electric interactive multispectral analyzer, model 100, and photographed for study. Contrast and directional edge-enhancement excellently delineated the patterns of megafractures and lineaments which are obscure to ground observation, but may control vent positions. Two sets of orthogonal groups of megafractures are oriented in the cardinal and diagonal directions; they suggest rotation of the stress ellipsoid, or the overlap of stresses from a differently oriented ellipsoid in a neighboring region. A megacircle of vents suggests a deep cylindrical fracture zone and possible incipient cauldron. Other circular areas with unusually abundant travertine maars or volcanic-material-free pipes suggest incipient collapse. Band ratios, density slices and histogram stretches selectively enhanced and differentiated stratigraphic formations, limburgite, tuff, travertine, gypsum-argillized rock and Fe-enriched rock. These were portrayed successfully on thematic map-images. A signature was derived for uraniferous travertine-marl and used to map its distribution. 30 refs.; 24 figs

Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications

Directory of Open Access Journals (Sweden)

R. Sivasankari

2015-09-01

Full Text Available Magnetically impelled arc butt (MIAB welding is a pressure welding process used for joining of pipes and tubes with an external magnetic field affecting arc rotation along the tube circumference. In this work, MIAB welding of low alloy steel (T11 tubes were carried out to study the microstructural changes occurring in thermo-mechanically affected zone (TMAZ. To qualify the process for the welding applications where pressure could be up to 300 bar, the MIAB welds are studied with variations of arc current and arc rotation time. It is found that TMAZ shows higher hardness than that in base metal and displays higher weld tensile strength and ductility due to bainitic transformation. The effect of arc current on the weld interface is also detailed and is found to be defect free at higher values of arc currents. The results reveal that MIAB welded samples exhibits good structural property correlation for high pressure applications with an added benefit of enhanced productivity at lower cost. The study will enable the use of MIAB welding for high pressure applications in power and defence sectors.

Tracking Developmental Students into Their First College Level Mathematics Course

Science.gov (United States)

Waycaster, Pansy

2011-01-01

A recent SACS review at the author's institution prompted an assessment of the school's developmental mathematics program. The author needed to examine the effectiveness of the developmental mathematics courses in preparing students for their first college level mathematics course. Rather than just examine success rates in developmental…

Academic Credit at Marymount Manhattan College for Student Volunteers.

Science.gov (United States)

Storey, Eileen

The report describes a 2-year project at Marymount Manhattan College (New York) to develop and implement a community service program which provides student participants with tuition credits. Students served in either a shelter for homeless women or with a tutorial program for adults preparing for the high-school equivalency examination. The report…

Predicting academic success among deaf college students.

Science.gov (United States)

Convertino, Carol M; Marschark, Marc; Sapere, Patricia; Sarchet, Thomastine; Zupan, Megan

2009-01-01

For both practical and theoretical reasons, educators and educational researchers seek to determine predictors of academic success for students at different levels and from different populations. Studies involving hearing students at the postsecondary level have documented significant predictors of success relating to various demographic factors, school experience, and prior academic attainment. Studies involving deaf and hard-of-hearing students have focused primarily on younger students and variables such as degree of hearing loss, use of cochlear implants, educational placement, and communication factors-although these typically are considered only one or two at a time. The present investigation utilizes data from 10 previous experiments, all using the same paradigm, in an attempt to discern significant predictors of readiness for college (utilizing college entrance examination scores) and classroom learning at the college level (utilizing scores from tests in simulated classrooms). Academic preparation was a clear and consistent predictor in both domains, but the audiological and communication variables examined were not. Communication variables that were significant reflected benefits of language flexibility over skills in either spoken language or American Sign Language.

The Effect of Secondary School Study Skills Preparation on First-Year University Achievement

Science.gov (United States)

Jansen, Ellen P. W. A.; Suhre, Cor J. M.

2010-01-01

Although many studies have revealed the importance of study skills for students' first-year performance and college retention, the extent of the impact of study skills preparation on students' academic achievement is less clear. This paper explores the impact of pre-university study skills preparation on students' first-year study experiences,…

Building Pathways to Transfer: Community Colleges That Break the Chain of Failure for Students of Color

Science.gov (United States)

Gandara, Patricia; Alvarado, Elizabeth; Driscoll, Anne; Orfield, Gary

2012-01-01

It has been well established that the high schools students attend contribute significantly to how well they do in college, and even if they choose to attend college at all (Lee & Frank, 1990). Low performing high schools tend to under-prepare their students for post-secondary education and contribute to the very high percentages of students…

Scholarship in nursing: Degree-prepared nurses versus diploma ...

African Journals Online (AJOL)

All but one (n = 18) nursing educators who obtained a degree as first qualification are educators in the private sector that include both universities as well as nursing colleges of private hospital groups. Data further revealed that most nurse educators and those in managerial positions were degree prepared. More degree ...

Teacher Educators’ Views on Inclusive Education and Teacher Preparation in Ghana

OpenAIRE

Nketsia, William; Saloviita, Timo; Gyimah, Emmanuel Kofi

2016-01-01

The crucial role of initial teacher education programmes and teacher educators in preparing effective inclusive practitioners has been universally acknowledged. This study explored the attitudes of 125 teacher educators from four colleges of education towards inclusive education, their views and concerns about teacher preparation and the implementation of inclusive education in Ghana. The study found positive attitudes and considerable support for inclusive education. However, ...

Using Logistic Regression for Validating or Invalidating Initial Statewide Cut-Off Scores on Basic Skills Placement Tests at the Community College Level

Science.gov (United States)

Secolsky, Charles; Krishnan, Sathasivam; Judd, Thomas P.

2013-01-01

The community colleges in the state of New Jersey went through a process of establishing statewide cut-off scores for English and mathematics placement tests. The colleges wanted to communicate to secondary schools a consistent preparation that would be necessary for enrolling in Freshman Composition and College Algebra at the community college…

"I Would Have Rather Paid for a Class I Wanted to Take": Utilitarian Approaches at a Community College

Science.gov (United States)

Cox, Rebecca D.

2009-01-01

This article examines community-college students' goals within the dominant framing of higher education, in which education serves primarily as preparation for the new economy. Specifically, it explores students' motives for acquiring college credentials and how they apply the principles of utility and efficiency to their pursuit of those…

The Role of Ethnic Identity, Gender Roles, and Multicultural Training in College Counselors' Multicultural Counseling Competence: A Mediation Model

Science.gov (United States)

Chao, Ruth Chu-Lien; Nath, Sanjay R.

2011-01-01

Increasing diversity on college campuses combined with economic globalization challenge colleges and universities to prepare their students to thrive in a diverse society. There are mixed effects from increasing diversity on campuses. Thus, providing multiculturally competent counseling is a necessary and indispensable prerequisite for college…

Reactor operator: Training for the job while earning college credit

International Nuclear Information System (INIS)

Murdick, S.A.

1988-01-01

The nuclear industry is looking for ways to maximize the dollars spent to train licensed reactor operators and other personnel and, at the same time, upgrade their educational level. The prospects of college credit and/or degree requirements imposed by the US Nuclear Regulatory Commission have provided a significant driving force behind this search. The task is complicated, however, because shift schedules do not permit reactor operators to pursue higher education through the traditional classroom route, and the need for plant-specific training and requalification programs dictate against uniformly adapting college-based courses for training use. The National Program on Noncollegiate Sponsored Instruction (National PONSI) has been of considerable help to the nuclear industry in meeting these challenges. Through its college credit recommendation service, National PONSI has assessed the comparability of certain industry training activities to college-level instruction and has been instrumental in gaining academic recognition of these activities. The program has become a vital means for the industry to achieve its dual mission of preparing employees to successfully perform their jobs and providing them with ways to obtain college degrees in the shortest possible time

Reactor operator: Training for the job while earning college credit

Energy Technology Data Exchange (ETDEWEB)

Murdick, S.A.

1988-01-01

The nuclear industry is looking for ways to maximize the dollars spent to train licensed reactor operators and other personnel and, at the same time, upgrade their educational level. The prospects of college credit and/or degree requirements imposed by the US Nuclear Regulatory Commission have provided a significant driving force behind this search. The task is complicated, however, because shift schedules do not permit reactor operators to pursue higher education through the traditional classroom route, and the need for plant-specific training and requalification programs dictate against uniformly adapting college-based courses for training use. The National Program on Noncollegiate Sponsored Instruction (National PONSI) has been of considerable help to the nuclear industry in meeting these challenges. Through its college credit recommendation service, National PONSI has assessed the comparability of certain industry training activities to college-level instruction and has been instrumental in gaining academic recognition of these activities. The program has become a vital means for the industry to achieve its dual mission of preparing employees to successfully perform their jobs and providing them with ways to obtain college degrees in the shortest possible time.

Numerical Simulation of Heat and Flow Behaviors in Butt-fusion Welding Process of HDPE Pipes with Curved Fusion Surface

Energy Technology Data Exchange (ETDEWEB)

Yoo, Jae Hyun; Ahn, Kyung Hyun [Seoul National University, Seoul (Korea, Republic of); Choi, Sunwoong; Oh, Ju Seok [Hannam University, Daejeon (Korea, Republic of)

2017-08-15

Butt-fusion welding process is used to join the polymeric pipes. Recently, some researchers suggest the curved surface to enhance a welding quality. We investigated how curved welding surface affects heat and flow behaviors of polymer melt during the process in 2D axisymmetric domain with finite element method, and discussed the effect to the welding quality. In this study, we considered HDPE pipes. In heat soak stage, curved phase interface between the melt and solid is shown along the shape of welding surface. In jointing stage, squeezing flow is generated between curved welding surface and phase interface. The low shear rate in fusion domain reduces the alignment of polymer to the perpendicular direction of pipes, and then this phenomenon is expected to help to enhance the welding quality.

Obtaining college credit for licensed operator courses at the Wolf Creek Generating Station

International Nuclear Information System (INIS)

Russo, C.W.; Coulthard, R.C.

1985-01-01

The presentation examined alternatives to formal college courses as a means to obtain college credit toward a baccalaureate degree for station operations personnel. The focus is on the American Council on Education (ACE-PONSI) program which evaluates and makes credit recommendations for courses sponsored by organizations, like utilities, whose primary function is not education. Significant elements of the licensed operator program were prepared for an ACE-PONSI review and determined to be equivalent to college level nuclear engineering technology course work. The ACE-PONSI evaluation provides a good foundation and a significant amount of the training program evaluation required prior to the INPO accreditation effort

Effect of current and speed on porosity in autogenous Tungsten Inert Gas (TIG) welding of aluminum alloys A1100 butt joint

Science.gov (United States)

Milyardi, Indra; Sunar Baskoro, Ario

2018-04-01

Autogenous Tungsten Inert Gas (TIG) welding has been conducted on aluminum alloy A1100. The purpose of this research is to determine the proper current and speed of autogenous TIG welding with butt joint pattern. Variations on welding current are 150 A, 155 A, and 160 A with the variations on welding speed are 1 mm/seconds, 1.1 mm/seconds, 1.2 mm/seconds. The welded results were tested using non-destructive test (NDT) method using X-Ray radiography. After the test, it is found that the appropriate current for the best result without porosity can be achieved using the welding parameter of welding current of 160 A and the welding speed of 1.1 mm seconds.

Auto Service Career Preparation Moves to the Fast Track.

Science.gov (United States)

Gray, Don

2000-01-01

Automotive Youth Educational Systems (AYES) is a school-to-career partnership among automotive manufacturers and dealers and selected high schools. AYES is designed to encourage students to consider careers in retail automotive service and to prepare them for entry-level positions at dealerships or colleges. (JOW)

Revising the ACS Guidelines for Chemistry Programs in Two-Year Colleges: Shaping the Next Edition

Science.gov (United States)

Clevenger, John V.; Wesemann, Jodi L.

2008-06-01

Much has changed since the second edition of the ACS Guidelines for Chemistry Programs in Two-Year Colleges was prepared in 1997. The roles that two-year college programs can and do play in providing access to and success in higher education are receiving more attention. Increased knowledge on how people learn, advances in technology, and demands for accountability are changing the educational landscape.

The Development of Accounting in Ireland - The accounts of Maynooth College 1795 - 1832

OpenAIRE

Creide O'Brien

1999-01-01

This paper adds to the knowledge of accounting in Ireland in the late eighteenth and early nineteenth centuries. Using original archival research, the development of Irish accounting practice is examined by reference to the accounts of Maynooth College during the period 1795 - 1832. The accounting system used in preparing the college's accounts was that of charge/discharge. This was a system of accounting which relied on single entry of transactions and dated from the Middle Ages. The main pu...

Not Driven by High-Stakes Tests: Exploring Science Assessment and College Readiness of Students from an Urban Portfolio Community High School

Science.gov (United States)

Fleshman, Robin Earle

This case study seeks to explore three research questions: (1) What science teaching and learning processes, perspectives, and cultures exist within the science classroom of an urban portfolio community high school? (2) In what ways does the portfolio-based approach prepare high school students of color for college level science coursework, laboratory work, and assessment? (3) Are portfolio community high school students of color college ready? Is there a relationship between students' science and mathematics performance and college readiness? The overarching objectives of the study are to learn, understand, and describe an urban portfolio community high school as it relates to science assessment and college readiness; to understand how the administration, teachers, and alumni perceive the use of portfolios in science learning and assessment; and to understand how alumni view their preparation and readiness for college and college science coursework, laboratory work, and assessments. The theoretical framework of this study encompasses four theories: critical theory, contextual assessment, self-regulated learning, and ethic of care. Because the urban high school studied partnered with a community-based organization (CBO), it identifies as a community school. Therefore, I provide context regarding the concept, culture, and services of community schools. Case study is the research design I used to explore in-depth this urban portfolio community high school, which involved mixed methods for data collection and analysis. In total, six alumni/current college students, five school members (administrators and teachers), and three CBO members (administrators, including myself) participated in the study. In addition to school artefacts and student portfolios collected, classroom and portfolio panel presentation observations and 13 semi-structured interviews were conducted to understand the portfolio-based approach as it pertains to science learning and assessment and college

High School Pedagogy: The Influence of High School In-class Activities and Events On Introductory College Physics Success

OpenAIRE

Carter, Brooke

2014-01-01

This study explores how students’ grades in introductory college physics are influenced by the pedagogy used in their high school physics classes. The success of college science professors is often judged on the basis of the success of their students. This disregards the 18+ years of experiences with which students come into their physics classroom. This study aims to answer the question of what pedagogy best prepares students for introductory college physics. This quantitative study analyzes...

Teaching Practices in Principles of Economics Courses at Michigan Community Colleges.

Science.gov (United States)

Utech, Claudia J.; Mosti, Patricia A.

1995-01-01

Presents findings from a study of teaching practices in Principles of Economics courses at Michigan's 29 community colleges. Describes course prerequisites; textbooks used; lecture supplements; and the use of experiential learning tools, such as computers and field trips. Presents three recommendations for improving student preparation in…

Are They Learning? A College Trustee's Guide to Assessing Academic Effectiveness

Science.gov (United States)

American Council of Trustees and Alumni, 2013

2013-01-01

The most urgent task of colleges and universities is to prepare graduates for the challenges of career, community, and citizenship. Responsible institutions will be diligent and proactive in determining whether their academic programs increase core collegiate skills in analytical reasoning, mathematics, critical thinking, and writing. This…

Public versus Private Colleges: Political Participation of College Graduates

Science.gov (United States)

Lott, Joe L., II.; Hernandez, Jose; King, Joe P.; Brown, Tiffany; Fajardo, Ismael

2013-01-01

Using data from the Baccalaureate and Beyond Longitudinal Study (B&B:93/03) of College Graduates, we use structural equation modeling to model the relationships between college major, values held in college, collegiate community service participation, and the post-college political participation of college graduates by public versus private…

The Culture of Family: How a Model Early Childhood Teacher Preparation Program Navigates a Limited Context

Science.gov (United States)

Nitecki, Elena

2012-01-01

This article examines an extraordinarily successful early childhood education teacher preparation program at an urban 2-year college struggling with retention. The Early Childhood Education Program in this case study is able to maintain a graduation rate that is over four times greater than that of the college average and has a reputation for…

The Order of Things: Ethical Foundations for Community College Leaders

Science.gov (United States)

Stumpf, Arthur D.; Holt, Lynn; Crittenden, Laura; Davis, James E.

2012-01-01

This article calls attention to the need for community college leaders to develop a deeper understanding of ethics in preparation for addressing ethical issues that arise in the administration of their institutions. It discusses briefly the nature of ethics and the ethical theories of some modern and postmodern authors. The article is concerned…

Preparation for College General Chemistry: More than Just a Matter of Content Knowledge Acquisition

Science.gov (United States)

Cracolice, Mark S.; Busby, Brittany D.

2015-01-01

This study investigates the potential of five factors that may be predictive of success in college general chemistry courses: prior knowledge of common alternate conceptions, intelligence, scientific reasoning ability, proportional reasoning ability, and attitude toward chemistry. We found that both prior knowledge and scientific reasoning ability…

THE JUNIOR COLLEGE AND EDUCATION IN THE SCIENCES. THIRD REPORT IN A SERIES PREPARED FOR THE SUBCOMMITTEE ON SCIENCE, RESEARCH, AND DEVELOPMENT OF THE COMMITTEE ON SCIENCE AND ASTRONAUTICS OF THE U.S. HOUSE OF REPRESENTATIVES. (TITLE SUPPLIED).

Science.gov (United States)

HAWORTH, LELAND J.

THIS THIRD REPORT ON SCIENCE EDUCATION IN THE U.S. RAISES THREE ISSUES FOR THE JUNIOR COLLEGE--(1) IS IT A DISCRETE RESOURCE IN THE ADVANCEMENT OF SCIENCE EDUCATION, (2) DOES IT REQUIRE A UNIQUE SCIENCE CURRICULUM, AND (3) HOW SHOULD ITS SCIENCE INSTRUCTORS BE PREPARED. UNDER THE COUNCIL OF STATE GOVERNMENTS'"MODEL LAW" (1965), THE COMPREHENSIVE,…

and aluminum-substituted cobalt ferrite prepared by co-precipitation

Indian Academy of Sciences (India)

Structural and magnetic properties of zinc- and aluminum-substituted cobalt ferrite prepared by co-precipitation method. S T ALONE1,∗ and K M JADHAV2. 1Shiv Chhatrapati College, Aurangabad 431 004, India. 2Department of Physics, Dr. B. A. Marathwada University, Aurangabad 431 004, India. ∗Corresponding author.

Towards Utilization of E-Learning in Preparing Business Education ...

African Journals Online (AJOL)

The study was carried out to determine the perception of Business Studies educators towards the utilization of e-learning in preparing business education students for the world of work. The study was conducted in colleges of education in Anambra state. The population of the study consisted of 80 Business Studies ...

Conceptions of a Good College Student, Parent-Student Communication About College, First-Year Grades, and College Retention Among First- and Non-First-Generation College Students

OpenAIRE

Palbusa, Julienne Marie Alipio

2016-01-01

This study examined conceptions of a good college student, parent-student communication about college, academic achievement, college student retention, and college generation status among first-year college students. 344 undergraduates described the characteristics and skills of a good college student. In addition, they reported the frequency, perceived helpfulness, and quality (instrumental and emotional support) of parent-student communication about college. Student GPA and second year rete...

Beyond College Eligibility: A New Framework for Promoting College Readiness. College Readiness Indicator Systems Resource Series

Science.gov (United States)

Annenberg Institute for School Reform at Brown University, 2014

2014-01-01

The College Readiness Indicator Systems (CRIS) initiative was developed in response to a troubling pattern: More students than ever are enrolling in college after high school, but many of them are not college ready, as evidenced by persistently low rates of college completion. The sense of urgency to close the gap between college eligibility and…

Field performance of wood-burning and coal-burning appliances in Crested Butte during the 1989-90 heating season. Final report

International Nuclear Information System (INIS)

Jaasma, D.R.; Champion, M.R.; Gundappa, M.

1991-10-01

The field performance of woodburning and coalburning appliances in and around Crested Butte, CO, has been evaluated. Measurements included particulate matter (PM), carbon monoxide (CO), and weekly average burn rates. Woodburning appliances included conventional airtight stoves, EPA-certified catalytic stoves, and EPA-certified noncatalytic stoves. Compared to the emissions measured from conventional stoves, the certified stoves reduced PM emission factors (g/kg) by 53% and CO emission factors by 49%. Coalburning appliances included a commercial scale boiler, a residential stoker, and hand-fired coalstove. The coalburning appliances were compared to conventional woodstoves on a grams of pollutant per joule of heat output basis. The automatically stoked coal appliances reduced PM and CO emissions by roughly 84% and 85%, respectively. The hand-fired stove was cleaner than expected, reducing PM by 55% and CO by 27%

Feasibility evaluations for the integration of laser butt welding of tubes in industrial pipe coil production lines

Science.gov (United States)

Penasa, Mauro; Colombo, Enrico; Giolfo, Mauro

1994-09-01

Due to the good performance shown by laser welded joints, to the quality and repeatability achievable by this welding technique and to its high process productivity, a feature inherent to the laser technology which, together with its high flexibility, allows different operations to be performed by a single source, consistent savings in a production line may be obtained. Therefore laser welding techniques may be of high relevance for industrial applications, provided that a sufficient attention is paid to avoiding a low utilization time to the operating laser source. The paper describes a feasibility study for the integration of a laser source as an automatic unit for circumferential butt welding of tubes in production lines of pipe coils, just before the cold bending station. Using a 6 kW CO2 source, thickness ranging from 3.5 to 11.2 mm in carbon, low alloyed Cr-Mo and austenitic stainless steels, have been successfully welded. Cr-Mo steels require on line preheating treatment, which however can be achieved by laser defocused passes just before welding. The results of the preliminary qualification performed on laser welded joints of the involved topologies of product (materials, diameters and thicknesses) are described together with technological tests required for approval: laser circumferential butt welding of tubes has proven to be effective, with satisfactory and repeatable results and good joint performances. An exhaustive comparison with current welding techniques (TIG, MIG) is then carried out, along with a detailed analysis of the potential advantages and benefits which may be expected by using the laser welding technique, as well as with a first estimation of the investments and running costs. Since laser productivity is saturated only at a rough 35% during the year, an accurate analysis of other possible applications and of a possible lay out of a laser working cell integrated in the factory production lines is performed. Usually little attention is

A Nuts and Bolts Guide to College Success for Students Who Are Deaf or Hard of Hearing

Science.gov (United States)

PEPNet 2, 2012

2012-01-01

Beginning your college education means you'll be exploring a new place, making new friends, learning new things and setting your own priorities. You are going to face a lot of big changes in a short time. That's exciting--and challenging. The more prepared you are for college when you get there, the more ready you'll be to address these new…

Accelerating the College and Career Readiness of South Dakota's Students

Science.gov (United States)

Alliance for Excellent Education, 2011

2011-01-01

South Dakota is in the process of transitioning to new English language arts and mathematics standards that will better prepare students to be successful in college and their careers. Time, effort, and resources must be dedicated to effective implementation in order to realize the promise of these new common core state standards. This paper…

The Fifth Army War College: Preparing Strategic Leaders to Win in a Complex World

Science.gov (United States)

2015-02-17

turn of the century, signed the order. 16 The Root Reform Era between the Spanish -American War and World War I “saw vast changes in the entire... municipal governments, labor unions, media organizations, and other offices whiles visiting New York City each year. 39 Additionally, the College began to

Advanced placement math and science courses: Influential factors and predictors for success in college STEM majors

Science.gov (United States)

Hoepner, Cynthia Colon

President Obama has recently raised awareness on the need for our nation to grow a larger pool of students with knowledge in science mathematics, engineering, and technology (STEM). Currently, while the number of women pursuing college degrees continues to rise, there remains an under-representation of women in STEM majors across the country. Although research studies offer several contributing factors that point to a higher attrition rate of women in STEM than their male counterparts, no study has investigated the role that high school advanced placement (AP) math and science courses play in preparing students for the challenges of college STEM courses. The purpose of this study was to discover which AP math and science courses and/or influential factors could encourage more students, particularly females, to consider pursuing STEM fields in college. Further, this study examined which, if any, AP math or science courses positively contribute to a student's overall preparation for college STEM courses. This retrospective study combined quantitative and qualitative research methods. The survey sample consisted of 881 UCLA female and male students pursuing STEM majors. Qualitative data was gathered from four single-gender student focus groups, two female groups (15 females) and two male groups (16 males). This study examined which AP math and science courses students took in high school, who or what influenced them to take those courses, and which particular courses influenced student's choice of STEM major and/or best prepared her/him for the challenges of STEM courses. Findings reveal that while AP math and science course-taking patterns are similar of female and male STEM students, a significant gender-gap remains in five of the eleven AP courses. Students report four main influences on their choice of AP courses; self, desire for math/science major, higher grade point average or class rank, and college admissions. Further, three AP math and science courses were

Moving the Needle: The Effect of Faculty Development on Part-Time Teachers at a Technical College

Science.gov (United States)

Proeber, Helen R.

2012-01-01

In the business division of the technical college in which this study occurred, there was a need to change the way part-time faculty prepared course syllabi. The implementation of a professional development workshop that focused on the components and necessity of the syllabus provided the teachers new information they needed to be prepared for the…

The future of nursing: how important is discipline-specific knowledge? A conversation with Jacqueline Fawcett. Interview by Dr. Janie Butts and Dr. Karen Rich.

Science.gov (United States)

Fawcett, Jacqueline

2012-04-01

Nurses have long attempted to secure a unique identity for the profession. Many scholars are now promoting an interdisciplinary framework for nursing practice. Fawcett is convinced that interdisciplinary practice poses a danger for nursing to lose its identity and that interdisciplinary practice cannot be successful if members of each discipline do not understand the conceptual models, practice, and research of their own discipline. Dr. Janie Butts and Dr. Karen Rich interviewed Dr. Jacqueline Fawcett about her views related to discipline-specific knowledge and nursing's future. The authors conclude that Fawcett's scientific foundation gives nursing the solidarity and power necessary to determine the unique internal goods of its practice.

Selected Welding Techniques, Part 2

National Research Council Canada - National Science Library

1964-01-01

Partial contents: CONVENTIONAL WELD JOINTS VERSUS BUTT JOINTS IN 1-INCH ALUMINUM PLATE, SPECIAL WELD JOINT PREPARATION, UPSET METAL EDGES FOR INCREASED WELD JOINT STRENGTH, OUT-OF-POSITION WELDING OF HEAVY GAGE...

Student Elections Online: Dickinson College Uses Technology To Get Out the Vote.

Science.gov (United States)

Dempsey, Paul

2000-01-01

Recently, Dickinson College, Pennsylvania, used the World Wide Web to combat student apathy and encourage students to participate in elections. This article explains: the pros and cons of online voting; planning for online elections; preparing the ballots; specific techniques for conducting online elections; HTML forms and common gateway interface…

Boosting Students' Attitudes & Knowledge about Evolution Sets Them up for College Success

Science.gov (United States)

Carter, B. Elijah; Infanti, Lynn M.; Wiles, Jason R.

2015-01-01

Students who enter college with a solid grounding in, and positive attitudes toward, evolutionary science are better prepared for and achieve at higher levels in university-level biology courses. We found highly significant, positive relationships between student knowledge of evolution and attitudes toward evolution, as well as between…

The Need for Changing Control of Teacher Colleges in the Quest for ...

African Journals Online (AJOL)

This paper discusses the impact of imposed curriculum change, assessment system, authoritarian teacher college culture as well as principals' roles on preparing student teachers to become creative and supportive of the learning of each individual student. To enable teachers to take a proactive part in their profession, this ...

American Mathematical Association of Two Year Colleges Reform Policies in Practice: Implementing Standards in Classroom Instruction for Basic Skills Mathematics at One Four-Year College in New Jersey

Science.gov (United States)

Garruto, Patricia J.

2012-01-01

High school graduates continue to enter post-secondary education lacking in basic mathematical skills and thus not academically prepared to enroll in college-level mathematics courses (ACT, 2010). Although it can be argued that those mathematical concepts should have been mastered in grades K-12, educating those students in basic skills…

Identifying Variations in Hydraulic Conductivity on the East River at Crested Butte, CO

Science.gov (United States)

Ulmer, K. N.; Malenda, H. F.; Singha, K.

2016-12-01

Slug tests are a widely used method to measure saturated hydraulic conductivity, or how easily water flows through an aquifer, by perturbing the piezometric surface and measuring the time the local groundwater table takes to re-equilibrate. Saturated hydraulic conductivity is crucial to calculating the speed and direction of groundwater movement. Therefore, it is important to document data variance from in situ slug tests. This study addresses two potential sources of data variability: different users and different types of slug used. To test for user variability, two individuals slugged the same six wells with water multiple times at a stream meander on the East River near Crested Butte, CO. To test for variations in type of slug test, multiple water and metal slug tests were performed at a single well in the same meander. The distributions of hydraulic conductivities of each test were then tested for variance using both the Kruskal-Wallis test and the Brown-Forsythe test. When comparing the hydraulic conductivity distributions gathered by the two individuals, we found that they were statistically similar. However, we found that the two types of slug tests produced hydraulic conductivity distributions for the same well that are statistically dissimilar. In conclusion, multiple people should be able to conduct slug tests without creating any considerable variations in the resulting hydraulic conductivity values, but only a single type of slug should be used for those tests.

Leadership Development and Mentoring that Matters: Insights from the Career Trajectories of Women Community College Presidents and Chief Academic Officers

Science.gov (United States)

Krause, Ann Marie

2009-01-01

With the pending shortage of community college leaders expected in the next few years, this study addresses the leadership development of women two-year college senior leaders. There is much work to be done in generating diverse pools for senior positions, in preparing the next generation of leaders, particularly women, with the skills and…

Microstructure feature of friction stir butt-welded ferritic ductile iron

International Nuclear Information System (INIS)

Chang, Hung-Tu; Wang, Chaur-Jeng; Cheng, Chin-Pao

2014-01-01

Highlights: • Defect-free ferritic ductile iron joints is fabricated by FSW. • The welding nugget is composed of graphite, martensite, and recrystallized ferrite. • The graphite displays a striped pattern in the surface and advancing side. • The ferritic matrix transforms into martensite structure during welding. • High degree of plastic deformation is found on the advancing side. - Abstract: This study conducted friction stir welding (FSW) by using the butt welding process to join ferritic ductile iron plates and investigated the variations of microsturcture in the joined region formed after welding. No defects appeared in the resulting experimental weld, which was formed using a 3-mm thick ductile iron plate and tungsten carbide alloy stir rod to conduct FSW at a rotational speed of 982 rpm and traveling speed of 72 mm/min. The welding region was composed of deformed graphite, martensite phase, and dynamically recrystallized ferrite structures. In the surface region and on the advancing side (AS), the graphite displayed a striped configuration and the ferritic matrix transformed into martensite. On the retreating side (RS), the graphite surrounded by martensite remained as individual granules and the matrix primarily comprised dynamically recrystallized ferrite. After welding, diffusion increased the carbon content of the austenite around the deformed graphite nodules, which transformed into martensite during the subsequent cooling process. A micro Vickers hardness test showed that the maximum hardness value of the martensite structures in the weld was approximately 800 HV. An analysis using an electron probe X-ray microanalyzer (EPMA) indicated that its carbon content was approximately 0.7–1.4%. The peak temperature on the RS, 8 mm from the center of the weld, measured 630 °C by the thermocouple. Overall, increased severity of plastic deformation and process temperature near the upper stir zone (SZ) resulted in distinct phase transformation

Utility-value intervention with parents increases students' STEM preparation and career pursuit.

Science.gov (United States)

Rozek, Christopher S; Svoboda, Ryan C; Harackiewicz, Judith M; Hulleman, Chris S; Hyde, Janet S

2017-01-31

During high school, developing competence in science, technology, engineering, and mathematics (STEM) is critically important as preparation to pursue STEM careers, yet students in the United States lag behind other countries, ranking 35th in mathematics and 27th in science achievement internationally. Given the importance of STEM careers as drivers of modern economies, this deficiency in preparation for STEM careers threatens the United States' continued economic progress. In the present study, we evaluated the long-term effects of a theory-based intervention designed to help parents convey the importance of mathematics and science courses to their high-school-aged children. A prior report on this intervention showed that it promoted STEM course-taking in high school; in the current follow-up study, we found that the intervention improved mathematics and science standardized test scores on a college preparatory examination (ACT) for adolescents by 12 percentile points. Greater high-school STEM preparation (STEM course-taking and ACT scores) was associated with increased STEM career pursuit (i.e., STEM career interest, the number of college STEM courses, and students' attitudes toward STEM) 5 y after the intervention. These results suggest that the intervention can affect STEM career pursuit indirectly by increasing high-school STEM preparation. This finding underscores the importance of targeting high-school STEM preparation to increase STEM career pursuit. Overall, these findings demonstrate that a motivational intervention with parents can have important effects on STEM preparation in high school, as well as downstream effects on STEM career pursuit 5 y later.

A Study on the Optimal Welding Condition for Root-Pass in Horizontal Butt-Joint TIG Welding

Energy Technology Data Exchange (ETDEWEB)

Jung, Sung Hun; Kim, Jae-Woong [Yeungnam Univ., Gyeongsan (Korea, Republic of)

2017-04-15

In this study, to investigate the shape of the back bead as a weld quality parameter and to select the optimal condition of the root-pass TIG welding of a horizontal butt-joint, an experimental design and the response surface method (RSM) have been employed. Three parameters are used as input variables, which include the base current, peak current, and welding speed. The back bead width is selected as an output variable representing the weld quality, the target value of the width is 5.4 mm. Conducting the experiments according to the Box-Behnken experimental design, a 2nd regression model for the back bead width was made, and the validation of the model was confirmed by using the F-test. The desirability function was designed through the nominal-the-best formula for the appropriate back bead width. Finally, the following optimal condition for welding was selected using the RSM: base current of 0.9204, peak current of 0.8676, and welding speed of 0.3776 in coded values. For verification, a test welding process under the optimal condition was executed and the result showed the back bead width of 5.38 mm that matched the target value well.

A Study on the Optimal Welding Condition for Root-Pass in Horizontal Butt-Joint TIG Welding

International Nuclear Information System (INIS)

Jung, Sung Hun; Kim, Jae-Woong

2017-01-01

In this study, to investigate the shape of the back bead as a weld quality parameter and to select the optimal condition of the root-pass TIG welding of a horizontal butt-joint, an experimental design and the response surface method (RSM) have been employed. Three parameters are used as input variables, which include the base current, peak current, and welding speed. The back bead width is selected as an output variable representing the weld quality, the target value of the width is 5.4 mm. Conducting the experiments according to the Box-Behnken experimental design, a 2nd regression model for the back bead width was made, and the validation of the model was confirmed by using the F-test. The desirability function was designed through the nominal-the-best formula for the appropriate back bead width. Finally, the following optimal condition for welding was selected using the RSM: base current of 0.9204, peak current of 0.8676, and welding speed of 0.3776 in coded values. For verification, a test welding process under the optimal condition was executed and the result showed the back bead width of 5.38 mm that matched the target value well.

Advanced Problems in Mathematics : Preparing for University

OpenAIRE

Siklos, Stephen

2016-01-01

" This book is intended to help candidates prepare for entrance examinations in mathematics and scientific subjects, including STEP (Sixth Term Examination Paper). STEP is an examination used by Cambridge colleges as the basis for conditional offers. They are also used by Warwick University, and many other mathematics departments recommend that their applicants practice on the past papers even if they do not take the examination. Advanced Problems in Mathematics is recommended as preparati...

Technical Letter Report - Preliminary Assessment of NDE Methods on Inspection of HDPE Butt Fusion Piping Joints for Lack of Fusion

International Nuclear Information System (INIS)

Crawford, Susan L.; Cumblidge, Stephen E.; Doctor, Steven R.; Hall, Thomas E.; Anderson, Michael T.

2008-01-01

The U.S. Nuclear Regulatory Commission (NRC) has a multi-year program at the Pacific Northwest National Laboratory (PNNL) to provide engineering studies and assessments of issues related to the use of nondestructive evaluation (NDE) methods for the reliable inspection of nuclear power plant components. As part of this program, there is a subtask 2D that was set up to address an assessment of issues related to the NDE of high density polyethylene (HDPE) butt fusion joints. This work is being driven by the nuclear industry wanting to employ HDPE materials in nuclear power plant systems. This being a new material for use in nuclear applications, there are a number of issues related to its use and potential problems that may evolve. The industry is pursuing ASME Code Case N-755 entitled 'Use of Polyethylene (PE) Plastic Pipe for Section III, Division 1, Construction and Section XI Repair/Replacement Activities' that contains the requirements for nuclear power plant applications of HDPE. This Code Case requires that inspections be performed after the fusion joint is made by visually examining the bead that is formed and conducting a pressure test of the joint. These tests are only effective in general if gross through-wall flaws exist in the fusion joint. The NRC wants to know whether a volumetric inspection can be conducted on the fusion joint that will reliably detect lack-of-fusion conditions that may be produced during joint fusing. The NRC has requested that the work that PNNL is conducting be provided to assist them in resolving this inspection issue of whether effective volumetric NDE can be conducted to detect lack of fusion (LOF) in the butt HDPE joints. PNNL had 24 HDPE pipe specimens manufactured of 3408 material to contain LOF conditions that could be used to assess the effectiveness of NDE in detecting the LOF. Basic ultrasonic material properties were measured and used to guide the use of phased arrays and time-of-flight diffraction (TOFD) work that was

Building Student Momentum from High School into College. Ready or Not: It's Time to Rethink the 12th Grade. Executive Summary

Science.gov (United States)

Barnett, Elisabeth

2016-01-01

This executive summary describes a paper that is part of a series intended to encourage the nation's secondary and postsecondary systems to take joint responsibility for substantially increasing the number of young people who are prepared for college and career success. In this report, author Elisabeth Barnett of the Community College Research…

Survey on demand of the aged people for college volunteers in home nursing care service

Directory of Open Access Journals (Sweden)

Tian Meng

2017-01-01

Full Text Available Objects: To study the demand of the aged community residents for college volunteers in home nursing care service and its influence factors. Methods: Questionnaires on the aged residents’ expectation and requirements for college volunteers in home nursing care was prepared on basis of studies of reference books, study materials and pre-investigation, and then the questionnaires was completed by means of convenient sampling of 200 aged residents. Results The demand and expectation of the elderly for college volunteers in health care and spiritual comfort was strong. The old people who have more children, living alone and often feel lonely are more likely to need college volunteers. Conclusions: Volunteers should be arranged reasonably according to the needs of the aged people, and priority should be given to those who have more children, living alone and often feel lonely.

Binge eating and weight loss behaviors of overweight and obese college students.

Science.gov (United States)

Kelly-Weeder, Susan; Phillips, Kathryn; Leonard, Kelly; Veroneau, Margaret

2014-08-01

To investigate binge eating (BE) and weight-related behaviors in overweight and obese college students. This was a secondary analysis of data from 487 overweight and obese college-age students from a private university in the northeastern United States. BE was reported by 34.9% of students. Only 6.2% of participants reported the use of compensatory behaviors (i.e., self-induced vomiting, laxative, or diuretic use) to prevent weight gain. BE was associated with smoking and exercising to lose weight. Gender differences emerged from the data as women were more likely to report being obese, the use of compensatory behaviors, and to perceive themselves as moderately or extremely overweight. BE is a significant problem on college campuses and is associated with the development of obesity and eating disorders. Nurse practitioners (NPs) are in an excellent position to effect change in this population through their frequent contact with young adults in community and school-based venues. NPs are well-prepared to identify at-risk college students and provide them with individualized care, education, and support. ©2013 American Association of Nurse Practitioners.

The Preparation of an Annotated Bibliographical Guide to Selected Research Studies Related to the Small College, 1965-1971. Final Report.

Science.gov (United States)

Askew, Thomas A.

This document presents an outline of the processes used in compiling and annotating an approximately 560-entry bibliography dealing with the small college. The entries are comprised of books, articles, dissertations, and other studies published on the small college from 1965 through 1971. The actual bibliography is to be published soon by the…

Dating Violence among College Students: Key Issues for College Counselors

Science.gov (United States)

Murray, Christine E.; Kardatzke, Kerrie N.

2007-01-01

The authors present a review of literature examining dating violence among college students. They describe 6 key issues related to dating violence among college students that affect college counselors' work. These key issues relate to the incidence and prevalence of physical, sexual, and psychological violence in college students' dating…

Child Soldiers: Are U.S. Military Members Prepared to Deal with the Threat?

Science.gov (United States)

2006-02-15

killing child soldiers. Additional attention should also be invested into identifying interventions that would decrease the negative stigma of mental...AIR WAR COLLEGE AIR UNIVERSITY CHILD SOLDIERS: ARE U.S. MILITARY MEMBERS PREPARED TO DEAL WITH THE THREAT? by Judith Hughes, LtCol, USAF A...COVERED 00-00-2006 to 00-00-2006 4. TITLE AND SUBTITLE Child Soldiers: Are U.S. Military Members Prepared to Deal with the Threat? 5a. CONTRACT

Follow-Up Survey of the 1988-1989 Radiography Graduates of Middlesex Community College.

Science.gov (United States)

Spence, Weymouth

A graduate follow-up survey evaluated student outcomes for the radiography program at Middlesex Community College/Middlesex Memorial Hospital (Connecticut). The program prepares students for entry-level employment as radiographers. The questionnaire, based on input from program officials and respondents, was mailed to 14 1988 and 1989 graduates.…

CAREER TRAINING IN HOTEL AND RESTAURANT OPERATION...AT CITY COLLEGE OF SAN FRANCISCO.

Science.gov (United States)

BATMALE, LOUIS F.; MULLANY, GEORGE G.

THE HOTEL AND RESTAURANT PROGRAM, ONE OF 35 SEMIPROFESSIONAL TRAINING PROGRAMS AT CITY COLLEGE OF SAN FRANCISCO, COMBINES GENERAL EDUCATION, RELATED BUSINESS INSTRUCTION, HOTEL AND RESTAURANT CLASSES, FOOD PREPARATION AND SERVICE TRAINING, AND WORK EXPERIENCE. THIS DESCRIPTION OF THE PROGRAM INCLUDES (1) PURPOSES AND OBJECTIVES, (2) CURRICULUM,…

Imprinting Community College Computer Science Education with Software Engineering Principles

Science.gov (United States)

Hundley, Jacqueline Holliday

Although the two-year curriculum guide includes coverage of all eight software engineering core topics, the computer science courses taught in Alabama community colleges limit student exposure to the programming, or coding, phase of the software development lifecycle and offer little experience in requirements analysis, design, testing, and maintenance. We proposed that some software engineering principles can be incorporated into the introductory-level of the computer science curriculum. Our vision is to give community college students a broader exposure to the software development lifecycle. For those students who plan to transfer to a baccalaureate program subsequent to their community college education, our vision is to prepare them sufficiently to move seamlessly into mainstream computer science and software engineering degrees. For those students who plan to move from the community college to a programming career, our vision is to equip them with the foundational knowledge and skills required by the software industry. To accomplish our goals, we developed curriculum modules for teaching seven of the software engineering knowledge areas within current computer science introductory-level courses. Each module was designed to be self-supported with suggested learning objectives, teaching outline, software tool support, teaching activities, and other material to assist the instructor in using it.

College Explorer.

Science.gov (United States)

Ahl, David H.

1985-01-01

The "College Explorer" is a software package (for the 64K Apple II, IBM PC, TRS-80 model III and 4 microcomputers) which aids in choosing a college. The major features of this package (manufactured by The College Board) are described and evaluated. Sample input/output is included. (JN)

CLEP college mathematics

CERN Document Server

Friedman, Mel

2012-01-01

Earn College Credit with REA's Test Prep for CLEP* College Mathematics Everything you need to pass the exam and get the college credit you deserve.CLEP* is the most popular credit-by-examination program in the country, accepted by more than 2,900 colleges and universities. For over 15 years, REA has helped students pass the CLEP* exam and earn college credit while reducing their tuition costs. Our test prep for CLEP* College Mathematics and the free online tools that come with it, allow you to create a personalized CLEP* study plan that can be customized to fit you: your schedule, your lea

Loving All Your Neighbors: Why Community Colleges Need the Academic Study of Religion

Science.gov (United States)

Maley, Melissa

2013-01-01

This chapter explains how the study of world religions prepares the community college student to become a better citizen, worker, and neighbor. The effective middle between the pitfalls of religious relativism and religious dominance in a world religions classroom is central to this discussion of teaching critical thinking, empathy, and…

College and beyond: How do I get there from here?

Energy Technology Data Exchange (ETDEWEB)

1994-03-01

The panels of the 1992 Science Careers in Search of Women Conference consisted of a diverse group of women: undergraduate and graduate students, engineers, a director of college admissions, a professor of microbiology, and leaders of small and large companies. Each panelist shared valuable information and answered questions that many high school students have concerning college and the years beyond. One issue that was focused on was preparation for college. Several speakers emphasized the importance of students themselves taking the initiative to collect information on colleges and career programs. The college admissions officer advised that specific questions about admissions requirements be directed to a senior person in the office who actually makes decisions on admissions. She stressed the importance of establishing an interaction that could provide recognition for the student when the admissions officer is reviewing applications from a large pool of candidates. She also emphasized the importance of studying for standardized tests. Speakers discussed the advantages of enrolling in higher-level math and science classes and taking Advanced Placement courses when they are available. Once a student has enrolled in a college or university, it is time to focus on choosing a major and identifying career interests and options. Graduate school was identified as much less classroom-oriented than undergraduate studies. A student conducts research with guidance from an advisor and attends lectures and seminars, which often times present information related to the research project she is working on. Tuition is usually paid for by universities, especially in the science and engineering fields, often in return for a teaching or research assistant position.

College-"Conocimiento": Toward an Interdisciplinary College Choice Framework for Latinx Students

Science.gov (United States)

Acevedo-Gil, Nancy

2017-01-01

This paper builds upon Perna's college choice model by integrating Anzaldúa's theory of "conocimiento" to propose an interdisciplinary college choice framework for Latinx students. Using previous literature, this paper proposes college-"conocimiento" as a framework that contextualizes Latinx student college choices within the…

The Purpose of a Student Affairs Preparation Program within Jesuit Higher Education

Science.gov (United States)

Stringer, Jeremy; Swezey, Erin

2006-01-01

This article addresses the congruence of a student affairs professional preparation program within Jesuit higher education. It connects the mission of Jesuit education and Jesuit religious and educational principles to the philosophy of student affairs work in colleges and universities. A program in student development administration at Seattle…

University Strategic Planning: A Process for Change in a Principal Preparation Program

Science.gov (United States)

Guerra, Federico R.; Zamora, Roberto; Hernandez, Rosalinda; Menchaca, Velma

2017-01-01

This study describes a strategic planning process used for developing an educational leadership program that prepares principals for leading 21st century schools. The plan is based on recommendations received from the External reviewers representing Southern Association of Colleges and Schools, the Texas Education Agency, survey responses received…

How Do Different Types of Schools Prepare Students for Life at Cambridge?

Science.gov (United States)

Perez-Adamson, Clara; Mercer, Neil

2016-01-01

Twenty students from different educational backgrounds within the UK were interviewed to investigate how well they considered their secondary school education had prepared them for the educational and social demands of an "elite" university and life within its most traditional colleges. The study asked them how they perceived students…

Study of Defect Sizing in Carbon Steel Butt Welds using Conventional Ultrasonic Technique and Phased Array Ultrasonic

International Nuclear Information System (INIS)

Amry Amin Abas; Noorhazleena Azaman; Mohd Yusnisyam Mohd Yusoff

2016-01-01

Ultrasonic testing is a proven reliable method which is able to detect and measure the size of defects in butt welds with acceptable tolerance. Recent advancement of technology has introduced a computerized technique which is phased array. Phased array employs focal law that enable focusing and steering of beam at the active aperture axis. This enables one line scanning but covering the whole weld volume as compared to conventional technique which employs aster scan and multiple probes to completely cover the whole weld volume. Phased array also gives multiple data view which assist the interpreter. This paper is about the study of these two techniques and technical analysis of comparison between the two. The conventional technique is performed using GE USM GO with 4 MHz 45 degrees shear wave probe. The phased array technique uses OLYMPUS OMNISCAN MX2 with 5L64 linear array probe with 16 elements aperture and 55 degrees wedge emitting shear wave into the specimen. Sensitivity of both techniques are based on 1.5 mm Side Drilled Hole. The results are compared and analysis such as defect sizing and defect type determination are performed. (author)

Application of Phased Array Ultrasonic Testing (PAUT) on Single V-Butt Weld Integrity Determination

International Nuclear Information System (INIS)

Amry Amin Abas; Mohd Kamal Shah Shamsudin; Norhazleena Azaman

2015-01-01

Phased Array Ultrasonic Testing (PAUT) utilizes arrays of piezoelectric elements that are embedded in an epoxy base. The benefit of having such kind of array is that beam forming such as steering and focusing the beam front possible. This enables scanning patterns such as linear scan, sectorial scan and depth focusing scan to be performed. Ultrasonic phased array systems can potentially be employed in almost any test where conventional ultrasonic flaw detectors have traditionally been used. Weld inspection and crack detection are the most important applications, and these tests are done across a wide range of industries including aerospace, power generation, petrochemical, metal billet and tubular goods suppliers, pipeline construction and maintenance, structural metals, and general manufacturing. Phased arrays can also be effectively used to profile remaining wall thickness in corrosion survey applications. The benefits of PAUT are simplifying inspection of components of complex geometry, inspection of components with limited access, testing of welds with multiple angles from a single probe and increasing the probability of detection while improving signal-to-noise ratio. This paper compares the result of inspection on several specimens using PAUT as to digital radiography. The specimens are welded plates with single V-butt weld made of carbon steel. Digital radiography is done using blue imaging plate with x-ray source. PAUT is done using Olympus MX2 with 5 MHz probe consisting of 64 elements. The location, size and length of defect is compared. (author)

The effect of secondary school study skills preparation on first-year university achievement

NARCIS (Netherlands)

Jansen, Ellen P. W. A.; Suhre, Cor J. M.

2010-01-01

Although many studies have revealed the importance of study skills for students' first-year performance and college retention, the extent of the impact of study skills preparation on students' academic achievement is less clear. This paper explores the impact of pre-university study skills

Preparing hearts and minds: cardiac slowing and a cortical inhibitory network.

Science.gov (United States)

Jennings, J R; van der Molen, M W; Tanase, C

2009-11-01

Preparing for a cued, speeded response induces a set of physiological changes. A review of the psychophysiology of preparation suggested that inhibition of action was an important process among the constellation of changes constituting attentive preparation. The current experiment combined event-related functional magnetic resonance imaging and cardiac inter-beat interval measures in an experiment that compared preparing for a response, watching stimuli without responding, and responding in the absence of preparation. Ten college-aged participants were tested in an initial psychophysiological experiment followed by two scanning sessions during which reverse spiral imaging was performed concurrent with inter-beat interval measurement. Two analytic approaches were used to confirm blood oxygenation level dependent responses during preparation, and these converged to show inferior prefrontal and related subthalamic nuclei activity in the context of other known changes related to brain attentional networks. Subthalamic nuclei changes were related to the depth of preparatory cardiac deceleration. This pattern of findings suggests that preparation involves the activation of a complex inhibitory neural network implicating brain and autonomic nervous systems.

Influences of post weld heat treatment on tensile strength and microstructure characteristics of friction stir welded butt joints of AA2014-T6 aluminum alloy

Science.gov (United States)

Rajendran, C.; Srinivasan, K.; Balasubramanian, V.; Balaji, H.; Selvaraj, P.

2016-08-01

Friction stir welded (FSWed) joints of aluminum alloys exhibited a hardness drop in both the advancing side (AS) and retreating side (RS) of the thermo-mechanically affected zone (TMAZ) due to the thermal cycle involved in the FSW process. In this investigation, an attempt has been made to overcome this problem by post weld heat treatment (PWHT) methods. FSW butt (FSWB) joints of Al-Cu (AA2014-T6) alloy were PWHT by two methods such as simple artificial aging (AA) and solution treatment followed by artificial aging (STA). Of these two treatments, STA was found to be more beneficial than the simple aging treatment to improve the tensile properties of the FSW joints of AA2014 aluminum alloy.

College Student's Perceptions of Living and Learning with Attention Deficit Hyperactivity Disorder (ADHD)

Science.gov (United States)

Gallo, Michael P.; Mahar, Patricia; Chalmers, Lynne

2014-01-01

How does the K-12 special education system prepare children with ADHD for the rigors and independent learning of higher education? This article examines the K-12 experiences, including special education, of three college students diagnosed with ADHD during their early elementary years. In their own words, they provide insight into what benefited…

Investigating Strategies to Increase Persistence and Success Rates among Anatomy & Physiology Students: A Case Study at Austin Community College District

Science.gov (United States)

Vedartham, Padmaja B.

Community colleges train 60% of healthcare workers nationwide. Human anatomy and physiology (A&P) courses are considered prerequisite courses for all students who aspire to enter health-related programs. The attrition rates for A&P students at community colleges nationally are close to 50%. Community colleges with open-door policies admit nontraditional students who have historically been educationally and economically disadvantaged and are labeled at risk. At-risk students offer a challenge to the colleges and in particular to allied health programs with their mathematical and science oriented requirements. This case study was designed to determine the strategies used to increase the success rates and retention rates among A&P students at Austin Community College District (ACC) in Texas. Data show that ACC has almost 100% retention and higher success rates among A&P students as compared to other colleges. Qualitative data were collected from eight full-time faculty, three administrators, three administrative staff, one director, and two advisors. The findings linked both academic and nonacademic variables to high retention and success rates. The key strategies that helped the A&P students to overcome the challenges to persist and succeed were an assessment test, two preparatory biology courses, technology, and teaching strategies. Taking an assessment test before being permitted to access the class helped students prepare themselves for the rigors of A&P. These strategies provided the students with the foundation of knowledge in the basic biological principles and processes, study skills, and time management skills that would prepare them for the material presented in A&P courses and later in the allied health programs. The principle themes identified in this research--namely requiring students to take the assessment test, providing materials (BIOL.1308, CE4000, and online modules) to prepare students for taking the test, a $2 million grant awarded by the

College Student Suicide

Science.gov (United States)

Taub, Deborah J.; Thompson, Jalonda

2013-01-01

Suicide is the second-leading cause of death among college students, and it is estimated that 1,088 college students die by suicide each year (National Mental Health Association and the Jed Foundation, 2002). This chapter presents the context of college student mental health within which the problem of college student suicide is situated. Because…

The Effectiveness of the North Carolina Early Mathematics Placement Test in Preparing High School Students for College-Level Introductory Mathematics Courses

Science.gov (United States)

Hilgoe, Ellen; Brinkley, Jason; Hattingh, Johannes; Bernhardt, Robert

2016-01-01

Since its establishment in 1996, the North Carolina Early Mathematics Placement Testing (NC EMPT) Program has provided a low stakes reality check of readiness for college-level mathematics to more than 600,000 high school students statewide. The program strives to help reduce the percentage of incoming college freshmen requiring mathematics…

Leadership preparation in engineering: A study of perceptions of leadership attributes, preparedness, and policy implications

Science.gov (United States)

Latorre, Julia Talarico

Perceptions of engineers and leaders in the field of engineering regarding leadership preparation for engineers were evaluated in this dissertation. More specifically, engineers' and leaders' perceptions of leadership preparation and the necessary skills of leaders in technical fields were studied. The design and analyses of the study were divided into two parts: (1) Data for employment and college enrollment for engineers in New York State (NYS) were plotted using Geographic Information Systems (GIS) in order to evaluate recent data regarding employment and college enrollment for engineers in order to better understand the relevance of leadership preparation in engineering, (2) Perceptions regarding engineering leadership preparedness were analyzed using descriptive statistical methods and inferential statistical methods and engineers' perceptions regarding the importance of chosen leadership attributes were analyzed using inferential statistics and Generalizability Theory (G-theory). Responses to open-ended questions regarding the importance of leadership or management training for engineers, and responses discussing possible implications of increasing leadership or management training for engineers were also examined. Possible implications of the study, and suggestions for future research, were also included.

College Student Migration.

Science.gov (United States)

Fenske, Robert H.; And Others

This study examines the background characteristics of two large national samples of first-time enrolled freshmen who (a) attended college within their state of residence but away from their home community, (b) migrated to a college in an adjacent state, (c) migrated to a college in a distant state, and (d) attended college in their home community.…

Sharing Responsibility for College Success: A Model Partnership Moves Students to Diplomas and Degrees

Science.gov (United States)

Vargas, Joel

2014-01-01

In order to prepare the large number of postsecondary-educated youth our economy demands, high schools and higher education must break through the boundaries that have traditionally separated them and assume joint responsibility for student success. This brief describes an unusual school district partnership with colleges that has achieved…

Do High School STEM Courses Prepare Non-College Bound Youth for Jobs in the STEM Economy?

Science.gov (United States)

Bozick, Robert; Srinivasan, Sinduja; Gottfried, Michael

2017-01-01

Our study assesses whether high school science, technology, engineering, and mathematics (STEM) courses provide non-college bound youth with the skills and training necessary to successfully transition from high school into the STEM economy. Specifically, our study estimates the effects that advanced math, advanced science, engineering, and…

Perceived motivators to home food preparation: focus group findings.

Science.gov (United States)

Jones, Sheila A; Walter, Janelle; Soliah, LuAnn; Phifer, Janna T

2014-10-01

Family meals are positively associated with increased consumption of fruits and vegetables and numerous nutrients, promoting good eating habits and disease prevention. Families benefiting from home-cooked meals are more likely to consume smaller portions and fewer calories, less fat, less salt, and less sugar. Some Western cultures have lost confidence in preparing meals and tend to rely on foods prepared outside the home. The ability of young adults to prepare foods at home may be impaired. The purpose of our study is to identify motivators and, consequently, barriers to preparing foods at home vs purchasing preprepared foods from a deli or eating in a restaurant. Focus groups of college students (n=239) from two universities were asked questions about motivators to preparing meals at home in two subsequent sessions. The primary motivators among the students were that they desired to save money; had a model in food preparation; were familiar with cooking techniques; and had enough time to shop, cook, and clean up after meals. Food and nutrition practitioners have opportunities to promote cost-effective, simple, and time-saving home food preparation techniques as healthful habits. Copyright © 2014 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

The Political Sense of Urgency for Educational Leadership Preparation Programs to Show Impact Data

Science.gov (United States)

Storey, Valerie; Asadoorian, Malcolm O., III

2014-01-01

Higher education today is confronted with increasing marketization and aggressive regulation of the public sector. In an attempt to address these challenging issues, public universities are undergoing unprecedented change, particularly Colleges of Education. Redesigning educational leadership preparation programs, working in partnership with local…

Functional fitness level of military college cadets

Directory of Open Access Journals (Sweden)

S.S. Fedak

2016-12-01

Full Text Available Purpose: to work out and study influence of author’s physical training program on functional fitness of military college officers. Material: in the research 83 3rd year cadets of military college participated (experimental group, n=41; control group, n=42, of age 19-21 years. The cadets’ functional state was registered by indicators of Shtange’s test, Genchi test, test of Ruffiet - Dixon, Cooper’s test. The volume of trainings was 4 hours a week. Results: it was found that the acting training programs do not permit to completely prepare combat soldier’s organism for fulfillment of his tasks. We also found the purposefulness of special exercises and means’ application in physical trainings, which would be approached by their structure to military officers’ professional actions. Conclusions: it is recommended to conduct training with complex combining of different physical training sections (accelerated motion, overcoming obstacle course, hand-to-hand fighting and etc. with special means ( armor vest, tactic unloading system, helmet, weapon, gas mask, training grenades and so on.

Participation of Ostrava Mining College in training of personnel for nuclear technology

International Nuclear Information System (INIS)

Kuchar, L.

1983-01-01

The mining and geology faculty of the Mining College educates specialists for surveying, extraction and treatment of uranium raw materials. In 1980 the faculty introduced an interdisciplinary study course for the technology of drilling, geological surveying and mine surveying. A contract has been signed between the College and the Czechoslovak Uranium Industry on specialized and scientific cooperation, expertise, postgraduate courses, etc. The metallurgy faculty of the College introduced the nuclear metallurgy specialization in 1964. Students attending the course will acquire knowledge not only on the metallurgy of nuclear fuels, cladding, shielding and structural materials, their production and processing but also on the science of metals, heat treatment, metal testing, etc. A study course is now being prepared relating to materials problems of nuclear power which is oriented to modern methods of material assessment for nuclear power facilities, light water reactors and their components. In 1976 the Mining College also introduced the nuclear power specialization at its mechanical engineering and electrical engineering faculties. In the years 1976-1982 more than fifty students graduated from the faculty whose theses were oriented to the problems of welding, surfacing, machining and upgrading of WWER-440 and WWER-1000 components. In the years 1979-82 the College ran a postgraduate study course on ''Machines and equipment of nuclear power plants''. (E.S.)

NCLEX-RN Examination Performance by BSN Graduates of Four Historically Black Colleges and Universities

Science.gov (United States)

Chesney, Anita M.

2010-01-01

This qualitative multiple-case study research explored and described differences as well as NCLEX-RN preparation strategies used by Historically Black College and University (HBCU) baccalaureate nursing programs with consistent NCLEX pass rates versus those with inconsistent pass rates. Two of the four selected programs had a history of consistent…

Evaluation of an Avatar-Based Training Program to Promote Suicide Prevention Awareness in a College Setting.

Science.gov (United States)

Rein, Benjamin A; McNeil, Daniel W; Hayes, Allison R; Hawkins, T Anne; Ng, H Mei; Yura, Catherine A

2018-02-20

Training programs exist that prepare college students, faculty, and staff to identify and support students potentially at risk for suicide. Kognito is an online program that trains users through simulated interactions with virtual humans. This study evaluated Kognito's effectiveness in preparing users to intervene with at-risk students. Training was completed by 2,727 university students, faculty, and staff from April, 2014 through September, 2015. Voluntary and mandatory participants at a land-grant university completed Kognito modules designed for higher education, along with pre- and post-assessments. All modules produced significant gains in reported Preparedness, Likelihood, and Self-Efficacy in intervening with troubled students. Despite initial disparities in reported abilities, after training participants reported being similarly capable of assisting at-risk students, including LGBTQ and veteran students. Kognito training appears to be effective, on a large scale, in educating users to act in a facilitative role for at-risk college students.

Personal Qualities and College Admissions.

Science.gov (United States)

Willingham, Warren W.; Breland, Hunter M.

The extent to which personal and academic factors are important in college admission decisions was studied in 1978, based on data on 25,000 applicants to 9 colleges (Colgate University, Williams College, Ohio Wesleyan University, Kenyon College, Kalamazoo College, Occidental College, Hartwick College, University of Richmond, and Bucknell…

The Community College Option

Science.gov (United States)

Rosenbaum, James E.; Ahearn, Caitlin; Rosenbaum, Janet

2016-01-01

Efforts to promote college for all for all has opened college doors to a broad range of students. But college--and career success after college--doesn't have to mean a bachelor's degree. Community college credentials, such as associate's degrees and one-year certificates, can lead to further degrees or jobs that offer more benefits than students…

Intended College Attendance: Evidence from an Experiment on College Returns and Cost

OpenAIRE

Bleemer, Zachary; Zafar, Basit

2015-01-01

Despite a robust college premium, college attendance rates in the US have remained stagnant and exhibit a substantial socioeconomic gradient. We focus on information gaps – specifically, incomplete information about college benefits and costs – as a potential explanation for these patterns. For this purpose, we conduct an information experiment about college returns and costs embedded within a representative survey of US household heads. We show that, at the baseline, perceptions of college c...

College and Community in Partnership: The Furniture College at Letterfrack.

Science.gov (United States)

Rosenfeld, Stuart A.

2001-01-01

A community economic development organization in rural Ireland partnered with a technical college to build a college to teach furniture design and manufacturing, with an emphasis on entrepreneurship and new production technologies. The college has been successful in attracting good students and helping them find employment. A research and…

Supplemental Colleges

Data.gov (United States)

Department of Homeland Security — The Supplemental Colleges layer attempts to capture additional Post Secondary Education campuses of colleges and universities associated with a single campus listed...

Variant selection of martensites in steel welded joints with low transformation temperature weld metals

International Nuclear Information System (INIS)

Takahashi, Masaru; Yasuda, Hiroyuki Y.

2013-01-01

Highlights: ► We examined the variant selection of martensites in the weld metals. ► We also measured the residual stress developed in the butt and box welded joints. ► 24 martensite variants were randomly selected in the butt welded joint. ► High tensile residual stress in the box welded joint led to the strong variant selection. ► We discussed the rule of the variant selection focusing on the residual stress. -- Abstract: Martensitic transformation behavior in steel welded joints with low transformation temperature weld (LTTW) metal was examined focusing on the variant selection of martensites. The butt and box welded joints were prepared with LTTW metals and 980 MPa grade high strength steels. The residual stress of the welded joints, which was measured by a neutron diffraction technique, was effectively reduced by the expansion of the LTTW metals by the martensitic transformation during cooling after the welding process. In the LTTW metals, the retained austenite and martensite phases have the Kurdjumov–Sachs (K–S) orientation relationship. The variant selection of the martensites in the LTTW metals depended strongly on the type of welded joints. In the butt welded joint, 24 K–S variants were almost randomly selected while a few variants were preferentially chosen in the box welded joint. This suggests that the high residual stress developed in the box welded joint accelerated the formation of specific variants during the cooling process, in contrast to the butt welded joint with low residual stress

College Experiences for Students with Autism Spectrum Disorder: Personal Identity, Public Disclosure, and Institutional Support

Science.gov (United States)

Cox, Bradley E.; Thompson, Kerry; Anderson, Amelia; Mintz, Amanda; Locks, Taylor; Morgan, Lindee; Edelstein, Jeffrey; Wolz, Abigail

2017-01-01

Individuals with autism spectrum disorder (ASD) are completing high school with reasonable expectations for postsecondary success. College educators are likely ill prepared to provide appropriate support for these students. Based on personal interviews with a diverse group of students with autism, this study (a) amplifies these students' voices,…

Assessment Systems and Data Management in Colleges of Education: An Examination of Systems and Infrastructure

Science.gov (United States)

Haughton, Noela A.; Keil, Virginia L.

2009-01-01

The College of Education Assessment Infrastructure Survey was developed and administered to 1011 institutions over a twelve-month period ending April 2007. The survey examined the capacity of university-based teacher preparation programs to respond to the growing and increasingly complex data management requirements that accompanies assessment and…

Gender equity in STEM: The role of dual enrollment science courses in selecting a college major

Science.gov (United States)

Persons, Christopher Andrew

A disproportionately low number of women, despite rigorous high school preparation and evidenced interest in STEM through voluntary participation in additional coursework, declare a STEM-related college major. The result of this drop in participation in STEM-related college majors is a job market flooded with men and the support of an incorrect stereotype: STEM is for men. This research seeks to assess the effects, if any, that Dual Enrollment (DE) science courses have on students' self-identified intent to declare a STEM-related college major as well as the respective perceptions of both male and female students. Self-Determination Theory and Gender Equity Framework were used respectively as the theoretical frames. High school students from six schools in two district participated in an online survey and focus groups in this mixed methods study. The results of the research identified the role the DE course played in their choice of college major, possible interventions to correct the underrepresentation, and societal causes for the stereotype.

First-Generation College Students and Undergraduate Research: Narrative Inquiry into the University of Arizona's Ronald E. McNair Achievement Program and the Phenomenon of Student Transformation

Science.gov (United States)

Huerta, Andrew L.

2013-01-01

With increasing numbers of first-generation college students enrolling in colleges and universities across the US, so too is the need to begin preparing such underrepresented students for graduate school and a career in academia. As a phenomenological case study of student transformation, this dissertation examines the experience of nine…

Development of Methods of Preparing Materials for Teaching Machines: Professional Paper 29-68.

Science.gov (United States)

Skinner, B. F.; Zook, Lola M., Ed.

In the preparation of 12-inch disc teaching machine materials for elementary college courses, a preliminary analysis of subject matter and required skills precedes sequential framing. The programer must assess the beginning level of student competence and frame questions to supply new material until the proper response stands alone. Statements for…

Professional development in college science teaching

Science.gov (United States)

Thomas, Aimee Kathryn

Graduate students earning a doctorate in the sciences historically focus their work on research and not professional development in college science teaching. However, for those who go on to a career in academia, a majority of their time will be dedicated to teaching. During the past few years, graduate teaching assistants (GTAs) have been prepared to teach by attending a daylong workshop that included logistical information, but left pedagogy largely unexplored. Since that time, a seminar has been added to provide an introduction to pedagogical theory and practices and to provide practice teaching in the biological sciences laboratory course. Yet, more pedagogical preparation is needed. This study was conducted to determine if there was a need for a teaching certificate program for doctoral students in the College of Science and Technology (CoST) at The University of Southern Mississippi. The GTA respondents studied set teaching goals that were consistent with faculty members across the country; however, this research went further by finding out how competent the GTAs perceived they were and how much support they perceived they needed with respect to teaching and professional development. The GTAs did not differ in their perceived level of competence based on experience level; however, the less experienced GTAs did perceive they needed more support than the experienced GTAs. To help GTAs develop a skill set that many CoST graduates currently lack, it is recommended that the University provide ample training and supervision. Establishing a certificate program can potentially impact the community in the following ways: (1) the training of GTAs contributes to the academic preparation of future academic professionals who will be teaching in various institutions; (2) GTA training provides professional development and awareness that teaching requires life long professional development; (3) ensuring competent academicians, not only in content but also in pedagogy; (4

Advancing Life Projects: South African Students Explain Why They Come to FET Colleges

Directory of Open Access Journals (Sweden)

Lesley Powell

2014-10-01

Full Text Available Vocational Education and Training (VET policy in South Africa is based on a narrow set of assumptions regarding the identity of learners and the reasons that they are in public further education and training (FET colleges. These assumptions reflect an international orthodoxy about the centrality of employability that is located within what Giddens (1994 has described as 'productivism', a view that reduces life to the economic sphere. Through exploring the stories of a group of South African public FET college learners' regarding their reasons for choosing FET colleges, this paper shows that VET is valued by these students for a range of reasons. These include preparation for the world of work, but also a desire to improve their ability to contribute to their communities and families; raise their self-esteem; and expand their future life possibilities. Thus, the paper advances the largely hitherto theoretical critique of productivist VET accounts by offering empirical evidence of counter-narratives.

Launching Early College Districtwide: Pharr-San Juan-Alamo's "College for All" Strategy

Science.gov (United States)

Le, Cecilia

2012-01-01

Across the nation, early college schools are creating a path to college success for young people underrepresented in higher education. For a decade, these innovative public schools blending high school and college have proven that, with the right support, all high school students can tackle college work. Now, a Texas school district near the…

Developing the Basic English Language Skills in Nigerian Colleges of Education: A Case Study of Three Colleges of Education

Directory of Open Access Journals (Sweden)

Oris Tom-Lawyer

2016-05-01

Full Text Available This paper examines the pedagogies employed in developing the Basic English language skills in Nigerian Colleges of Education, with particular reference to three colleges. It investigates the adequacy of the English language skills in the preparation of the Nigeria Certificate in Education (NCE English language teachers as the poor performance of Nigerian students in external English language examinations has become a source of concern to educational stakeholders (Patrick, Sui, Didam & Ojo, 2014. The Nigeria Certificate in Education is the principal qualification for teaching in Nigeria (National Policy Brief, 2005. The paper constitutes a section of a larger study that evaluated the implementation of the NCE English Language curriculum. The Context, Input, Process and Product (CIPP Evaluation model is the theoretical framework in the study. A mixed methods approach was adopted within the CIPP framework, while utilizing a case study. Twenty lecturers and one hundred and twenty students from three Colleges of Education comprise the sample drawn through multistage and purposive sampling. The instruments were documentary reviews, observation checklists, interviews, questionnaires and field notes. The methods of analysis were thematic content analysis and descriptive/ inferential analysis. The study revealed that lecturers do not adopt contemporary and appropriate pedagogy for the teaching of the four language skills. It recommends this aspect should be re-considered. Similarly, an immediate review of the Practical Listening Skills and Speech work aspect of the course outline is required as the lecturers have noted that it is abstract.

Protecting Colleges and Students: Community College Strategies to Prevent Default

Science.gov (United States)

McKibben, Bryce; La Rocque, Matthew; Cochrane, Debbie

2014-01-01

Student loan default, defined as federal loan borrowers' failure to make any payments for at least 270 days, is an issue of increasing importance to community colleges and their students. This report takes a unique look at student loan default at nine community colleges across the nation, and how those colleges are working to help students avoid…

Timing Is Everything: Getting Students Back on Track to College Readiness in High School

Science.gov (United States)

Royster, Pamela; Gross, Jacob; Hochbein, Craig

2015-01-01

National trends and goals have pushed beyond the dropout crisis and are now focused on raising the percentage of graduates prepared for college and career. This study examined a longitudinal cohort (n = 6443) of students in an urban, public school district in order to explore how districts and communities can redirect off-track high school…

Personal Selling at Bournesworth College: A Simulation Exercise. Information Bank Simulation Exercise 2435A-F.

Science.gov (United States)

Scribbins, Keith

This simulation is designed to train further education college salespersons in making effective sales presentations to firms' training officers. The exercise is divided into the following four parts: preparing for a sales visit (allotted time, 1 hour 15 minutes); carrying out the visit (45 minutes); reflecting on the visit and drafting…

Colleges Are Slashing Adjuncts' Hours to Skirt New Rules on Health-Insurance Eligibility

Science.gov (United States)

Dunn, Sydni

2013-01-01

Allison G. Armentrout, an adjunct instructor at Stark State College, does not get paid by the hour. She earns $4,600 to teach two English composition courses. But now she carefully tracks how many hours she works on an electronic time sheet. During a recent week, she spent three hours preparing for her lectures, close to six hours in the…

Messiah College Biodiesel Fuel Generation Project Final Technical Report

Energy Technology Data Exchange (ETDEWEB)

Zummo, Michael M; Munson, J; Derr, A; Zemple, T; Bray, S; Studer, B; Miller, J; Beckler, J; Hahn, A; Martinez, P; Herndon, B; Lee, T; Newswanger, T; Wassall, M

2012-03-30

Many obvious and significant concerns arise when considering the concept of small-scale biodiesel production. Does the fuel produced meet the stringent requirements set by the commercial biodiesel industry? Is the process safe? How are small-scale producers collecting and transporting waste vegetable oil? How is waste from the biodiesel production process handled by small-scale producers? These concerns and many others were the focus of the research preformed in the Messiah College Biodiesel Fuel Generation project over the last three years. This project was a unique research program in which undergraduate engineering students at Messiah College set out to research the feasibility of small-biodiesel production for application on a campus of approximately 3000 students. This Department of Energy (DOE) funded research program developed out of almost a decade of small-scale biodiesel research and development work performed by students at Messiah College. Over the course of the last three years the research team focused on four key areas related to small-scale biodiesel production: Quality Testing and Assurance, Process and Processor Research, Process and Processor Development, and Community Education. The objectives for the Messiah College Biodiesel Fuel Generation Project included the following: 1. Preparing a laboratory facility for the development and optimization of processors and processes, ASTM quality assurance, and performance testing of biodiesel fuels. 2. Developing scalable processor and process designs suitable for ASTM certifiable small-scale biodiesel production, with the goals of cost reduction and increased quality. 3. Conduct research into biodiesel process improvement and cost optimization using various biodiesel feedstocks and production ingredients.

College Access Marketing

Science.gov (United States)

Tremblay, Christopher W.

2011-01-01

College Access Marketing (CAM) is a relatively new phenomenon that seeks to positively influence the college-going rate. This report defines CAM, describes CAM examples, and discusses how CAM seeks to counter barriers to college. It explores four main elements of CAM: information, marketing, advocacy, and social mobilization. Further, it…

The Impact of GEAR UP on College Readiness for Students in Low Income Schools

Science.gov (United States)

Bausmith, Jennifer Merriman; France, Megan

2012-01-01

The purpose of this study was to evaluate the impact of the Gaining Early Awareness and Readiness for Undergraduate Program (GEAR UP) on college readiness outcomes using a quasi-experimental design. GEAR UP is designed to increase the number of low-income students who are prepared to enter and succeed in postsecondary education by providing 6-year…

Are Interpersonal Violence Rates Higher Among Young Women in College Compared With Those Never Attending College?

Science.gov (United States)

Coker, Ann L; Follingstad, Diane R; Bush, Heather M; Fisher, Bonnie S

2016-05-01

Estimates of sexual violence and partner violence rates among young women are generated primarily from college samples. Few studies have data to compare rates among similar-aged women attending college with those who never attended college. This study aims to estimate rates of partner violence by type (sexual, physical, and psychological) and severity (mild, moderate, severe), sexual harassment, and knowing or suspecting that someone put a drug in a drink (drugged drink) among a national sample of 959 young women aged 18 to 24 in an intimate relationship in the past 12 months who were either currently in college (college;n= 272) or never attended college (non-college;n= 687). After adjusting for demographic differences between these two groups, no significant differences were found in rates of sexual partner violence (28.4% non-college, 23.5% college), physical partner violence (27.9% non-college, 26.3% college), psychological partner violence (Mscore: 6.10 non-college, 5.59 college), sexual harassment (15.5% non-college, 14.1% college), or drugged drink (8.5% non-college, 7.8% college). Finding high rates of interpersonal violence among young women who are and are not currently attending college indicates the need to target all young adults with violence prevention interventions in educational, workplace, and other community-based settings. © The Author(s) 2015.

Gender Differences in Introductory University Physics Performance: The Influence of High School Physics Preparation and Affect

Science.gov (United States)

Hazari, Zahra

2006-12-01

The attrition of females studying physics after high school has been a continuing concern for the physics education community. If females are well prepared, feel confident, and do well in introductory college physics, they may be inclined to study physics further. This quantitative study uses HLM to identify factors from high school physics preparation (content, pedagogy, and assessment) and the affective domain that predict female and male performance in introductory college physics. The study includes controls for student demographic and academic background characteristics, and the final dataset consists of 1973 surveys from 54 introductory college physics classes. The results highlight high school physics and affective experiences that differentially predict female and male performance. These experiences include: learning requirements, computer graphing/analysis, long written problems, everyday world examples, community projects cumulative tests/quizzes, father's encouragement, family's belief that science leads to a better career, and the length of time students believe that high school physics would help in university physics. There were also experiences that similarly predict female and male performance. The results paint a dynamic picture of the factors from high school physics and the affective domain that influence the future physics performance of females and males. The implication is that there are many aspects to the teaching of physics in high school that, although widely used and thought to be effective, need reform in their implementation in order to be fully beneficial to females and/or males in college.

Pre-Service Teachers' Perceptions on Procedures to Identify and Assess Children with Special Educational Needs and Disabilities: The Case of Tutors of Colleges of Education in Ghana

Science.gov (United States)

Gyimah, Emmanuel Kofi; Amoako, R.

2016-01-01

The study aimed at exploring the perceptions tutors in Colleges of Education have on how the Colleges of Education Curriculum adequately prepare pre-service teachers to enable them to identify and assess children with special educational needs and disabilities for effective inclusive education in Ghana. A descriptive survey design was adopted and…

Surviving Math, Surviving College

Science.gov (United States)

Schaffhauser, Dian

2009-01-01

According to a 2000 community college study by Miami Dade College (FL) President Emeritus Robert McCabe, 41 percent of students entering community colleges are underprepared in at least one basic skill area. A three-year study of community college students, published in 2009 by the National Center for Education Statistics, reported that 41 percent…

Cash for College.

Science.gov (United States)

National Association of Student Financial Aid Administrators, Washington, DC.

This booklet contains answers to questions that students may ask about financial aid for college. The booklet describes the usual costs of college, and suggests ways students can pay for a college education. The types of financial aid available are described, and the application process is outlined. The booklet offers tips for comparing different…

Vignettes of scholars: A case study of black male students at a STEM early college high school

Science.gov (United States)

Adams, Tempestt Richardson

Ensuring students graduate high school ready to enter college or the workforce has become a prime focus within secondary education. High school graduates are often ill-prepared for college-level work and often have to register for remedial courses before they can take standard college level courses (Southern Regional Education Board, 2010). Serving as both a solution to this concern and an alternative to traditional high schools, early college high schools were created to focus on increasing the number of students graduating from high school and enrolling in college. Early college high schools seek to serve students who have traditionally underperformed in school and those who are underrepresented in higher education including students of color, first-generation college students, students from low socioeconomic backgrounds, and English language learners (Barnett, Bucceri, Hindo, Kim, 2013; "Overview & FAQS," 2013). In efforts to learn more about how early colleges are meeting the needs of students, this dissertation examines the experiences, identity construction, and perceptions of Black male students at a science, technology, engineering, and mathematics (STEM) based early college high school. Using a qualitative case study design, participants were eight Black male upperclassmen enrolled in a STEM early college high school, located on the campus of a four-year university. Data was collected through focus groups and individual interviews and data was analyzed thematically. Findings suggest students in this study have largely positive experiences at their early college high school. Despite some challenges, the early college high school environment helps facilitate scholar identities, and the STEM focus of the school helps students learn more about their strengths and weaknesses. The implications of the research, recommendations for educational stakeholders, and recommendations for future research are discussed.

Colleges without Walls But with Foundations: Integrated College and Communications Development in Saskatchewan.

Science.gov (United States)

Faris, Ronald L.

The evolvement of the community college in Saskatchewan is discussed. The college concept, which is embodied in seven principles, is essentially one of a communtiy college in which the community is the campus--the "college" exists wherever its programs are offered. Existing school and community facilities are utilized. In the first year…

Business, Management and Administration: A Subject-Based Aspect Report by Education Scotland on Behalf of the Scottish Funding Council on Provision in Scotland's Colleges. Transforming Lives through Learning

Science.gov (United States)

Education Scotland, 2014

2014-01-01

In preparing this report, reviewers visited a sample of four colleges, detailed in Appendix 1. They also drew on the findings of published Education Scotland external reviews of colleges, and examined other relevant publications and reports. They consulted and held focus groups with key stakeholders, including the Scottish Qualifications Authority…

Depressive Symptomatology and College Persistence among African American College Students.

Science.gov (United States)

Boyraz, Güler; Horne, Sharon G; Owens, Archandria C; Armstrong, Aisha P

2016-01-01

The purpose of this study was to examine the relationship between depressive symptomatology and college outcomes among African American students, as well as to determine whether these relationships were moderated by gender and type of university. Participants included 569 African American first-year students attending two public universities in the Southeast United States: a historically Black college/university (HBCU) and a predominantly White institution (PWI). Using a longitudinal study design, data were collected at three time points. Results indicated that, after adjusting for the effects of the control variables (gender, type of institution, high school GPA, participation in on-campus activities, institutional and goal commitments), depressive symptomatology present in the first semester of college was associated with increased likelihood of dropping out of college before the end of the second year of college. The relationship between these two variables was mediated by first-year cumulative GPA. Results also indicated that the hypothesized relationships did not vary as a function of gender and the university type.

Being a (Good) Student: Conceptions of Identity of Adult Basic Education Participants Transitioning to College

Science.gov (United States)

Reddy, Mina

2012-01-01

This study examines the perceptions of identity of a category of students that has rarely been studied in the context of higher education. These are adults who have participated in GED preparation or English for Speakers of Other Languages (ESOL) courses in Adult Basic Education (ABE) programs. A college education is increasingly necessary for…

College Choice Factors of Latino Community College Students

Science.gov (United States)

Zayas-DeCouto, Georgina

2016-01-01

In the United States, a postsecondary education is significant for economic success. The future job markets require advanced certifications in order to compete in the global market. The federal government emphasizes this importance with the completion goal to increase the number of college graduates by the year 2020. Community colleges have been…

Cyberbullying in College

OpenAIRE

Carlos P. Zalaquett; SeriaShia J. Chatters

2014-01-01

Cyberbullying is commonly presented as affecting K-12 populations. Current research suggests cyberbullying continues in college. A diverse sample of 613 university students was surveyed to study their cyberbullying experiences in high school and college. Nineteen percent of the sample reported being a victim of cyberbullying in college and 35% of this subsample reported being cyberbullied in high school. Additional fin...

Southern Vermont College (SVC) and Wheelock College (WC): 2010 Urban and Rural Healthcare Academy Program (HAP) for College Progress and Workforce Development

Science.gov (United States)

DeCiccio, Albert C.

2010-01-01

(Purpose) This is a report about the Urban and Rural Healthcare Academy Pilot Program (HAP) that launched at Southern Vermont College (SVC) and Wheelock College (WC) in summer 2010. HAP enabled 18 vulnerable high school students to learn about how to progress to college, how to transition when they arrive on a college campus, and how to prepare…

Learning from the Learners: Preparing Future Teachers to Leverage the Benefits of Laptop Computers

Science.gov (United States)

Grundmeyer, Trent; Peters, Randal

2016-01-01

Technology is changing the teaching and learning landscape. Teacher preparation programs must produce teachers who have new skills and strategies to leverage the benefits of laptop computers in their classrooms. This study used a phenomenological strategy to explain first-year college students' perceptions of the effects of a 1:1 laptop experience…

Literacy in Community Colleges. Junior College Resource Review.

Science.gov (United States)

Yarrington, Roger; And Others

This series of Junior College Resource Reviews focuses on the community college's role in literacy development. After Roger Yarrington's overview of the topic, Robert McCabe and Susan Skidmore consider "The Literacy Crisis and American Education." In light of the changing nature of work and the severe decline in the communication skills of youth,…

Workforce Investments: State Strategies to Preserve Higher-Cost Career Education Programs in Community and Technical Colleges

Science.gov (United States)

Shulock, Nancy; Lewis, Jodi; Tan, Connie

2013-01-01

In today's highly-skilled economy, rewarding career pathways are available to those who acquire technical skills by enrolling in certificate and associate degree programs in a community or technical college. Such programs are often more costly to offer than liberal arts and sciences programs that prepare students to transfer to four-year…

Interassociation Consensus Statement on Cardiovascular Care of College Student-Athletes.

Science.gov (United States)

Hainline, Brian; Drezner, Jonathan; Baggish, Aaron; Harmon, Kimberly G; Emery, Michael S; Myerburg, Robert J; Sanchez, Eduardo; Molossi, Silvana; Parsons, John T; Thompson, Paul D

2016-04-01

Cardiovascular evaluation and care of college student-athletes is gaining increasing attention from both the public and medical communities. Emerging strategies include screening of the general athlete population, recommendations of permissible levels of participation by athletes with identified cardiovascular conditions, and preparation for responding to unanticipated cardiac events in athletic venues. The primary focus has been sudden cardiac death and the utility of screening with or without advanced cardiac screening. The National Collegiate Athletic Association convened a multidisciplinary task force to address cardiovascular concerns in collegiate student-athletes and to develop consensus for an interassociation statement. This document summarizes the task force deliberations and follow-up discussions, and includes available evidence on cardiovascular risk, pre-participation evaluation, and the recognition of and response to cardiac arrest. Future recommendations for cardiac research initiatives, education, and collaboration are also provided. (J Am Coll Cardiol 2016;doi: 10.1016/j.jacc.2016.03.527.) ©2016 by the American College of Cardiology Foundation.

Impact of Educational Cartoon on Pediatric Bowel Preparation Quality at Time of Colonoscopy

Directory of Open Access Journals (Sweden)

Elizabeth Maxwell MD

2014-08-01

Full Text Available Objective: To evaluate if addition of educational cartoon to pediatric bowel preparation instructions improves the quality of bowel preparation and patient experience. Methods: Patients were randomized to control group receiving standard bowel preparation instructions or intervention group receiving additional educational cartoon. To objectively rate bowel preparation, a blinded endoscopist completed numeric Ottawa score (0-14, with 0 being best. The family also completed a questionnaire rating the bowel preparation process. Results: Data from 23 patients were analyzed. Mean Ottawa score in the intervention group compared with controls was not significantly different (mean scores 3.73 and 3.33, respectively; P = .384. Level of education was significantly correlated with better Ottawa score in the overall population (ρ = −.462, P = .026 and within the control group (ρ = −.658, P = .02. Both groups of patients reported positive experience with bowel preparation. Conclusion: There may be benefit to further investigation of this educational cartoon in parents with less than college level education or non-English-speaking families in larger population of patients.

Changes in chemistry and biochemistry education: creative responses to medical college admissions test revisions in the age of the genome.

Science.gov (United States)

Brenner, Charles

2013-01-01

Approximately two million students matriculate into American colleges and universities per year. Almost 20% of these students begin taking a series of courses specified by advisers of health preprofessionals. The single most important influence on health profession advisers and on course selection for this huge population of learners is the Medical College Admissions Test (MCAT), which was last revised in 1991, 10 years before publication of the first draft human genome sequence. In preparation for the 2015 MCAT, there is a broad discussion among stakeholders of how best to revise undergraduate and medical education in the molecular sciences to prepare researchers and doctors to acquire, analyze and use individual genomic and metabolomic data in the coming decades. Getting these changes right is among the most important educational problems of our era. Copyright © 2012 International Union of Biochemistry and Molecular Biology, Inc.

Content, Delivery, and Effectiveness of Concussion Education for US College Coaches.

Science.gov (United States)

Kroshus, Emily; Baugh, Christine M; Daneshvar, Daniel H

2016-09-01

The primary objective of this study was to examine the proportion of US college coaches who receive annual concussion education from their institution and to describe the content and delivery modalities of this education. This study also tested the hypothesis that coaches receiving concussion education from their institution will have greater knowledge about concussions independent of other individual and institutional characteristics. Cross-sectional online survey. US college sport. College coaches in National Collegiate Athletic Association Division I, II, and III (n = 1818). Self-reported receipt of education from institution, sex, sport coached, division of competition. Concussion identification and management knowledge. Two-thirds of coaches reported receiving informational materials about concussion from their institution. The content of the education most frequently referred to symptoms of a concussion and information about proper management of a concussion. Coaches who received educational materials from their institution were better able to identify symptoms and had more conservative responses to concussion management scenarios. Male coaches of male contact or collision teams less frequently endorsed safe or correct response as compared with female coaches of noncontact or collision teams. Not all US college coaches receive concussion education from their institution. Male Division I coaches of male contact/collision sport are a population for whom targeted educational outreach may be particularly valuable. Education for coaches, delivered by clinicians at many institutions, is an important component of ensuring that coaches are prepared to be informed partners in supporting concussion safety.

The Impact of Different Parenting Styles on First-Year College Students' Adaptation to College

Science.gov (United States)

Smith, Gregory J.

2006-01-01

The present study was undertaken to determine the impact of different parenting styles on college students' adaptation to college. During the second week of college, 80 first-year students from two-parent families completed the Tests of Reactions and Adaptations to College, English version and the Parental Authority Questionnaire. Authoritative…

A Study of Faculty Views of Statistics and Student Preparation beyond an Introductory Class

Science.gov (United States)

Doehler, Kirsten; Taylor, Laura; Smith, Jessalyn

2013-01-01

The purpose of this research is to better understand the role of statistics in teaching and research by faculty from all disciplines and their perceptions of the statistical preparation of their students. This study reports the findings of a survey administered to faculty from seven colleges and universities regarding the use of statistics in…

Cyberbullying in College

Directory of Open Access Journals (Sweden)

Carlos P. Zalaquett

2014-03-01

Full Text Available Cyberbullying is commonly presented as affecting K-12 populations. Current research suggests cyberbullying continues in college. A diverse sample of 613 university students was surveyed to study their cyberbullying experiences in high school and college. Nineteen percent of the sample reported being a victim of cyberbullying in college and 35% of this subsample reported being cyberbullied in high school. Additional findings and practical implications are presented.

Assessment of role of metamorphic remobilization in genesis of uranium ores from Ralston Buttes area, Colorado

International Nuclear Information System (INIS)

Chatterjee, S.K.

1984-01-01

The Ralston Buttes mining district, the principal source of commercial uranium in the Front Range since the late 1940s, is located northeast of Golden and southeast of the Front Range mineral belt. Uranium ore occurs in veins emplaced in fault breccia in Precambrian metamorphic rocks. The progenitors of the metamorphic rocks are a possible source for the uranium. Hornblende gneisses of the Idaho Springs Formation is the major rock type in the area, thus its origin is a major consideration in assessing the quantity of uranium that might have been contributed by metamorphic processes. To evaluate this, 41 rock samples (19 hornblende gneisses, 7 biotite gneisses, 5 chlorite gneisses, and 10 metapelites) were analyzed for major elements, and 3 rock samples (16 hornblende gneisses, 8 biotite gneisses, 4 chlorite gneisses, and 5 mica schists) were analyzed for trace metals (Rb, Sc, Zr, V, Ni, Co, Cr, Ba, U, and Th). Four samples of hornblende gneiss and 1 sample of mica schists were also analyzed for rare earth elements. Major elements are rare earth data indicate that the hornblende gneiss was derived from sediments and tholeiitic basalts. Trace element data suggest a volcanic provenance for these sediments. Rare earth patterns and uranium and thorium abundances of metapelites are similar to average North American shales. Low uranium and thorium values and low thorium-uranium ratios in hornblende gneisses and mica schists preclude large-scale uranium remobilization during metamorphism of these source rocks

How Can Service-Learning Prepare Students for the Workforce? Exploring the Potential of Positive Psychological Capital

Science.gov (United States)

McElravy, L. J.; Matkin, Gina; Hastings, Lindsay J.

2018-01-01

Although service-learning increases several important development and learning outcomes in college students (Yorio & Ye, 2012), it is not clear whether service-learning is better preparing these students for their future careers (Gray, Ondaatje, Fricker, & Geschwind, 2000). To better understand the influence of service-learning on student…

[Veneer computer aided design based on reverse engineering technology].

Science.gov (United States)

Liu, Ming-li; Chen, Xiao-dong; Wang, Yong

2012-03-01

To explore the computer aided design (CAD) method of veneer restoration, and to assess if the solution can help prosthesis meet morphology esthetics standard. A volunteer's upper right central incisor needed to be restored with veneer. Super hard stone models of patient's dentition (before and after tooth preparation) were scanned with the three-dimensional laser scanner. The veneer margin was designed as butt-to-butt type. The veneer was constructed using reverse engineering (RE) software. The technique guideline of veneers CAD was explore based on RE software, and the veneers was smooth, continuous and symmetrical, which met esthetics construction needs. It was a feasible method to reconstruct veneer restoration based on RE technology.

Optimal design for laser beam butt welding process parameter using artificial neural networks and genetic algorithm for super austenitic stainless steel

Science.gov (United States)

Sathiya, P.; Panneerselvam, K.; Soundararajan, R.

2012-09-01

Laser welding input parameters play a very significant role in determining the quality of a weld joint. The joint quality can be defined in terms of properties such as weld bead geometry, mechanical properties and distortion. Therefore, mechanical properties should be controlled to obtain good welded joints. In this study, the weld bead geometry such as depth of penetration (DP), bead width (BW) and tensile strength (TS) of the laser welded butt joints made of AISI 904L super austenitic stainless steel were investigated. Full factorial design was used to carry out the experimental design. Artificial Neural networks (ANN) program was developed in MatLab software to establish the relationships between the laser welding input parameters like beam power, travel speed and focal position and the three responses DP, BW and TS in three different shielding gases (Argon, Helium and Nitrogen). The established models were used for optimizing the process parameters using Genetic Algorithm (GA). Optimum solutions for the three different gases and their respective responses were obtained. Confirmation experiment has also been conducted to validate the optimized parameters obtained from GA.

Turning the Tables: Using RateMyProfessors.com as a Teaching Tool in the Community College Classroom

Science.gov (United States)

Miranda, Michael V.

2018-01-01

College students use online sources to obtain information about their institution's professors when preparing their schedules for the upcoming semester. While there is some disagreement among educators as to the validity of these student evaluations, students appear to find them to be quite useful. Might these evaluations, however, prove to be…

The Off-Campus Clinical Program of the College of Optometry, Ferris State College.

Science.gov (United States)

Paramore, James E.

1982-01-01

The clinical education program at Ferris State College, College of Optometry, and the various clinics affiliated with the college are described. To ensure quality, all individuals with the responsibility of teaching the students are faculty of Ferris State. (MLW)

Increasing College Access: A Look at College Readiness from the Experiences of Foster Youth

Science.gov (United States)

Hutchins, Demetrees Lee

2017-01-01

Fewer than 50% of all foster youth in the United States graduate from high school by the age of 18 and only 20% of those high school graduates attend college. There are many barriers that impact the college-going rates of foster youth. Past studies on college attendance among foster youth rarely look at college readiness experiences from the…

Leadership Development Institute: A California Community College Multi-College District Case Study

Science.gov (United States)

Leon, Bianca R.

2016-01-01

The purpose of this study is to examine a community college district Grow Your Own (GYO) leadership program in the Western United States, the Multi College Leadership Development Institute (MCLDI). The MCLDI was developed in-house for a multi-campus community college district and offered to interested employees at all position levels with the…

The fiscal impacts of college attainment

OpenAIRE

Philip A. Trostel

2007-01-01

This study quantifies one important part of the economic return to public investment in college education, namely, the fiscal benefits associated with greater college attainment. College graduates generally pay much more in taxes than those not going to college. Government expenditures are also generally much less for college graduates than for those without a college education. Indeed, over an average lifetime, total government spending per college degree is negative. That is, direct savings...

The Fiscal Impacts of College Attainment

Science.gov (United States)

Trostel, Philip A.

2010-01-01

This study quantifies one part of the return to U.S. public investment in college education, namely, the fiscal benefits associated with greater college attainment. College graduates pay much more taxes than those not going to college. Government expenditures are also much less for college graduates than for those without a college education.…

Alcohol drinking among college students: college responsibility for personal troubles.

Science.gov (United States)

Lorant, Vincent; Nicaise, Pablo; Soto, Victoria Eugenia; d'Hoore, William

2013-06-28

One young adult in two has entered university education in Western countries. Many of these young students will be exposed, during this transitional period, to substantial changes in living arrangements, socialisation groups, and social activities. This kind of transition is often associated with risky behaviour such as excessive alcohol consumption. So far, however, there is little evidence about the social determinants of alcohol consumption among college students. We set out to explore how college environmental factors shape college students' drinking behaviour. In May 2010 a web questionnaire was sent to all bachelor and master students registered with an important Belgian university; 7,015 students participated (participation = 39%). The survey looked at drinking behaviour, social involvement, college environmental factors, drinking norms, and positive drinking consequences. On average each student had 1.7 drinks a day and 2.8 episodes of abusive drinking a month. We found that the more a student was exposed to college environmental factors, the greater the risk of heavy, frequent, and abusive drinking. Alcohol consumption increased for students living on campus, living in a dormitory with a higher number of room-mates, and having been in the University for a long spell. Most such environmental factors were explained by social involvement, such as participation to the student folklore, pre-partying, and normative expectations. Educational and college authorities need to acknowledge universities' responsibility in relation to their students' drinking behaviour and to commit themselves to support an environment of responsible drinking.

Early Childhood Teacher Preparation: A Tale of Authors and Multimedia, A Model of Technology Integration Described.

Science.gov (United States)

Wetzel, Keith; McLean, S. V.

1997-01-01

Describes collaboration of two teacher educators, one in early childhood language arts and one in computers in education. Discusses advantages and disadvantages and extensions of this model, including how a college-wide survey revealed that students in teamed courses are better prepared to teach and learn with technology. (DR)

Light and Shadows on College Athletes: College Transcripts and Labor Market History.

Science.gov (United States)

Adelman, Clifford

Data from the National Longitudinal Study of the High School Class of 1972 were used to evaluate the contention that big-time college sports exploit athletes, denying them an education that will help them succeed after college. The sample (N=8,101) consisted of six comparison groups of students who attended four year colleges: varsity football and…

Optimization of GMAW process of AA 6063-T5 aluminum alloy butt joints based on the response surface methodology and on the bead geometry

International Nuclear Information System (INIS)

Miguel, V.; Martinez-Conesa, E. J.; Segura, F.; Manjabacas, M. C.; Abellan, E.

2012-01-01

The geometry of the weld beads is characterized by the overhead, the width and the penetration. These values are indices of the behavior of the welded joint and therefore, they can be considered as factors that control the process. This work is performed to optimize the GMAW process of the aluminum alloy AA 6063-T5 by means of the response surface methodology (RSM). The variables herein considered are the arc voltage, the welding speed, the wire feed speed and the separation between surfaces in butt joints. The response functions that are herein studied are the overhead, the width, the penetration and the angle of the bead. The obtained results by RSM show high grade of agreement with the experimental values. The procedure is experimentally validated by welding for the theoretically obtained optimized technological conditions and a wide agreement between theoretical and experimental values is found. (Author) 16 refs.

American Indian Community Colleges.

Science.gov (United States)

One Feather, Gerald

With the emergence of reservation based community colleges (th Navajo Community College and the Dakota Community Colleges), the American Indian people, as decision makers in these institutions, are providing Indians with the technical skills and cultural knowledge necessary for self-determination. Confronted with limited numbers of accredited…

Collaboration in the design and delivery of a mental health Recovery College course: experiences of students and tutors.

Science.gov (United States)

Cameron, Josh; Hart, Angie; Brooker, Saff; Neale, Paul; Reardon, Mair

2018-05-15

Recovery Colleges address mental health challenges using an educative approach underpinned by a collaborative recovery orientated philosophy. Research has been limited with no studies identified reporting research on the design and delivery of a specific course. To understand how Recovery College students and tutors experience the design and delivery of a mental health Recovery College course, specifically the "'Building Resilience" course. Thematic analysis of qualitative data related to the experience and process of collaboration in recovery college course design and delivery. Data included 13 qualitative individual interviews with course students and tutors and "naturally occurring" data generated through course preparation and delivery. Findings drew attention to the centrality of: prior experience and design related to students, tutors and the course structure; co-delivery related to tutors and co-learner impacts; and to the course methods and environment. Commitment to collaboration in design and delivery of Recovery College courses can mobilise the diverse experiences and expertise of tutors and students. The environment and methods of learning have a significant impact and should be considered alongside content. Boundaries between people and areas of knowledge and experience that arise can be viewed as sources of creativity that can enrich courses.

Sexting Behavior among College Students: Implications for College Clinicians

Science.gov (United States)

Hertlein, Katherine M.; Twist, Markie L. C.

2017-01-01

The practice of sexting is becoming increasingly common among college students but has the potential to both initiate productive interactions with others and interfere with relationship development. The purpose of this paper is to report on the findings of a study on sexting among college students and to provide a framework through which…

Protective Effects of Parent-College Student Communication during the First Semester of College

Science.gov (United States)

Small, Meg L.; Morgan, Nicole; Abar, Caitlin; Maggs, Jennifer L.

2011-01-01

Objective: Recent studies suggest that parents maintain influence as their adolescents transition into college. Advances in communication technology make frequent communication between parents and college students easy and affordable. This study examines the protective effect of parent-college student communication on student drinking behaviors,…

Professional Development For Community College Faculty: Lessons Learned From Intentional Mentoring Workshops

Science.gov (United States)

Morris, A. R.; Charlevoix, D. J.

2016-12-01

The Geoscience Workforce Development Initiative at UNAVCO supports attracting, training, and professionally developing students, educators, and professionals in the geosciences. For the past 12 years, UNAVCO has managed the highly successful Research Experiences in Solid Earth Science for Students (RESESS) program, with the goal of increasing the diversity of students entering the geosciences. Beginning in 2015, UNAVCO added Geo-Launchpad (GLP), a summer research preparation internship for Colorado community college students to prepare them for independent research opportunities, facilitate career exploration in the geosciences, and provide community college faculty with professional development to facilitate effective mentoring of students. One core element of the Geo-Launchpad program is UNAVCO support for GLP faculty mentors. Each intern applies to the program with a faculty representative (mentor) from his or her home institution. This faculty mentor is engaged with the student throughout the summer via telephone, video chat, text message, or email. At the end of each of the past two summers, UNAVCO has hosted four GLP faculty mentors in Boulder for two days of professional development focused on intentional mentoring of students. Discussions focused on the distinction between mentoring and advising, and the array of career and professional opportunities available to students. Faculty mentors also met with the external evaluator during the mentor training and provided feedback on both their observations of their intern as well as the impact on their own professional experience. Initial outcomes include re-energizing the faculty mentors' commitment to teaching, as well as the opportunity for valuable networking activities. This presentation will focus on the ongoing efforts and outcomes of the novel faculty mentor professional development activities, and the impact these activities have on community college student engagement in the geosciences.

Friction stir welding of 6061 aluminium alloy

International Nuclear Information System (INIS)

Abdel Rahman, M.A.M.S.

2009-01-01

6061 AA (Al-Mg-Si alloy) has gathered wide acceptance in the fabrication of light weight structures requiring a high strength-to-weight ratio and good corrosion resistance such as marine frames, pipelines, storage tanks, and aircraft components [1]. It is also used for the manufacturing of fuel elements in the nuclear research reactors. Compared to many of the fusion welding processes that are routinely used for joining structural alloys, friction stir welding (FSW) is a solid state joining process in which the material that is being welded is not melted and recast [2]. The welding parameters such as tool rotational speed, welding traverse speed, and tool profile play a major role in deciding the weld quality. Several FSW tools (differ from each other in pin angle, shoulder diameter, and shoulder concavity) have been used to fabricate a number of joints in order to obtain a tool with which a sound weld can be produced. It was found that the FSW tool with tapered cone pin, concave shoulder, and shoulder diameter equal to four times the welded plate thickness is suitable to produce a sound weld. The effect of the traverse speed on the global and local tensile properties of friction stir welded joints has been investigated in the 6061-T6 AA. The global tensile properties of the FSW joints were improved with increasing the traverse speed at constant rotation rate. It is found that the global tensile strength of the FSW joint is limited by the local tensile strength of the nearest region to the weld center at which the cross section is composed mainly of the HAZ. The effect of the initial butt surface on the formation of the zigzag line on the tensile properties of the welds was examined by using three types of welding samples differ in the preparation of the initial butt surface. The first type of samples welded without removing the oxide layer from the initial butt surface (uncleaned butt surfaces joint). In the second type of samples the oxide layer was removed from

Problem Gambling on College Campuses

Science.gov (United States)

McComb, Jennifer L.; Hanson, William E.

2009-01-01

The vast majority of college students gamble, with some doing so problematically. This article discusses gambling and problem gambling among college students, framing it as an emerging health issue on college campuses nationwide. Given that 4 out of 5 college students admit to gambling, and that approximately 8% gamble problematically, it is…

Implementation of an Online Climate Science Course at San Antonio College

Science.gov (United States)

Reyes, R.; Strybos, J.

2016-12-01

San Antonio College (SAC) plans to incorporate an online climate science class into the curriculum with a focus on local weather conditions and data. SAC is part of a network of five community colleges based around San Antonio, Texas, has over 20,000 students enrolled, and its student population reflects the diversity in ethnicity, age and gender of the San Antonio community. The college understands the importance of educating San Antonio residents on climate science and its complexities. San Antonio residents are familiar with weather changes and extreme conditions. The region has experienced an extreme drought, including water rationing in the city. Then, this year's El Niño intensified expected annual rainfalls and flash floods. The proposed climate science course will uniquely prepare students to understand weather data and the evidence of climate change impacting San Antonio at a local level. This paper will discuss the importance and challenges of introducing the new climate science course into the curriculum, and the desired class format that will increase the course's success. Two of the most significant challenges are informing students about the value of this class and identifying the best teaching format. Additionally, measuring and monitoring enrollment will be essential to determine the course performance and success. At the same time, Alamo Colleges is modifying the process of teaching online classes and is officially working to establish an online college. Around 23% of students enrolled in SAC offered courses are currently enrolled in online courses only, representing an opportunity to incorporate the climate science class as an online course. Since the proposed course will be using electronic textbooks and online applications to access hyperlocal weather data, the class is uniquely suited for online students.

The Effects of Credit Status on College Attainment and College Completion

OpenAIRE

Gicheva, Dora; Ionescu, Felicia; Simpson, Nicole B.

2012-01-01

College students now use various forms of unsecured credit such as private student loans and credit cards to finance college. Access to these credit lines and the interest rates charged on these loans can vary significantly across credit scores. In this paper, we analyze if credit status, as measured by self-reported characteristics of an individual's credit standing, affects college investment. Using data from the Survey of Consumer Finances, we study a sample of young high school graduates ...

Supply and Demand in the Higher Education Market: College Admission and College Choice. Research Brief

Science.gov (United States)

Hurwitz, Michael; Kumar, Amal

2015-01-01

The nation's most selective colleges are often the centerpiece of the discussion surrounding college choice, and trends in college selectivity are relayed through stories of plunging admission rates at a few high-profile postsecondary institutions and anecdotes of model high school students unable to secure seats at these colleges. Such stories…

Preparing for Further Introduction of Computing Technology in Vancouver Community College Instruction. Report of the Instructional Computing Committee.

Science.gov (United States)

Vancouver Community Coll., British Columbia.

After examining the impact of changing technology on postsecondary instruction and on the tools needed for instruction, this report analyzes the status and offers recommendations concerning the future of instructional computing at Vancouver Community College (VCC) in British Columbia. Section I focuses on the use of computers in community college…

Comprehensive College Plan for 2000-2001.

Science.gov (United States)

San Antonio Coll., TX.

The document describes San Antonio College's (Texas) strategic goals and objectives for 2000-2001. San Antonio College's comprehensive planning and evaluation process monitors the achievement of college-wide goals and initiatives supporting the college's Vision and Mission Statement and the Alamo Community College District's Strategic Plan. The…

How risky is college investment?

OpenAIRE

Hendricks, Lutz; Leukhina, Oksana

2015-01-01

This paper is motivated by the fact that nearly half of U.S. college students drop out without earning a bachelor’s degree. Its objective is to quantify how much uncertainty college entrants face about their graduation outcomes. To do so, we develop a quantitative model of college choice. The innovation is to model in detail how students progress towards a college degree. The model is calibrated using transcript and financial data. We find that more than half of college entrants can predict...

Divergent Streams: Race-Gender Achievement Gaps at Selective Colleges and Universities.

Science.gov (United States)

Massey, Douglas S; Probasco, Lierin

2010-03-01

In this paper, we extend previous research on racial performance gaps at 28 selective US colleges and universities by examining differences in grade achievement and graduate rates across race-gender categories. Using data from the National Longitudinal Survey of Freshmen, we show that black males, black females, and Hispanic males attain significantly lower grades than other race-gender groups, and that black males are 35% less likely to graduate on-time than other race-gender groups. Analyses consider an array of personal and institutional indicators of academic performance. Grades and graduation rates are improved by academic preparation (particularly high school GPA), scholarly effort, and, for graduation rates, membership in career-oriented or majority-white campus groups. Grade performance and graduation rates are undermined by a hostile racial climate on campus, family stress, and stereotype threat, all of which disproportionately affect minority students. We conclude with recommendations to college administrators for ways of selecting and supporting minority students to reduce differentials in academic achievement across race-gender groups.

Geologic map of the Strawberry Butte 7.5’ quadrangle, Meagher County, Montana

Science.gov (United States)

Reynolds, Mitchell W.; Brandt, Theodore R.

2017-06-19

The 7.5′ Strawberry Butte quadrangle in Meagher County, Montana near the southwest margin of the Little Belt Mountains, encompasses two sharply different geologic terranes.  The northern three-quarters of the quadrangle are underlain mainly by Paleoproterozoic granite gneiss, across which Middle Cambrian sedimentary rocks rest unconformably.  An ancestral valley of probable late Eocene age, eroded northwest across the granite gneiss terrane, is filled with Oligocene basalt and overlying Miocene and Oligocene sandstone, siltstone, tuffaceous siltstone, and conglomerate.  The southern quarter of the quadrangle is underlain principally by deformed Mesoproterozoic sedimentary rocks of the Newland Formation, which are intruded by Eocene biotite hornblende dacite dikes.  In this southern terrane, Tertiary strata are exposed only in a limited area near the southeast margin of the quadrangle.  The distinct terranes are juxtaposed along the Volcano Valley fault zone—a zone of recurrent crustal movement beginning possibly in Mesoproterozoic time and certainly established from Neoproterozoic–Early Cambrian to late Tertiary time.  Movement along the fault zone has included normal faulting, the southern terrane faulted down relative to the northern terrane, some reverse faulting as the southern terrane later moved up against the northern terrane, and lateral movement during which the southern terrane likely moved west relative to the northern terrane.  Near the eastern margin of the quadrangle, the Newland Formation is locally the host of stratabound sulfide mineralization adjacent to the fault zone; west along the fault zone across the remainder of the quadrangle are significant areas and bands of hematite and iron-silicate mineral concentrations related to apparent alteration of iron sulfides.  The map defines the distribution of a variety of surficial deposits, including the distribution of hematite-rich colluvium and iron-silicate boulders.  The southeast

Busted Butte Phase 2: Analysis of Post-Test Mineback and Overcore Rock Samples

International Nuclear Information System (INIS)

Turin, H.J.; McGraw, M.A.; Jones, C.L.; Scism, C.D.; Soll, W.E.

2002-01-01

A complex tracer mixture was injected continuously for over two years into a 10 x 10 x 7 m block of tuff as part of the unsaturated-zone (UZ) tracer test at Busted Butte. The test was designed to address uncertainties associated with flow and transport models within the Topopah Springs and Calico Hills tuffs. The tracer mixture included nonreactive (Br, I, and FBAs) and reactive tracers (Li, Ce, Sm, Ni, Coy and Mn) and synthetic colloids. Once injection was completed, samples from the block were collected in two ways. Overcores were taken from around and below injection holes. Then, the entire block was excavated via mineback--during which progressive vertical planes of the block were exposed. Samples from the overcores and mineback were analyzed to determine the distribution of tracers on different spatial scales than available from collection borehole data. Rock analyses confirmed collection pad results that the nonreactive tracers, Br and FBAs, moved several meters. Furthermore, Br and FBAs are observed above and lateral to the injector planes suggesting that capillarity was an important process for tracer movement. Lithium, the most mobile of the metals, was transported on a scale of meters. This is consistent with laboratory sorption measurements and observed breakthrough on the collection pads. Co and Ni show transport distances of tens of cm, while Sm and Ce moved far less, possibly due to precipitation and sorption effects. Colloid transport was assessed using 1 ft3 blocks extracted from the BB Phase 2 block. In the Calico Hills material, after 15 L of water was injected over 3.5 months, less than 1% of the colloids injected were recovered. Flow patterns in the block indicate that water injected at the center imbibed outward from the injection point. In a block taken from a boundary of the Calico Hills ashfall layer, breakthrough was observed only due to fractures formed during drying of the block. The colloid transport module for FEHM was tested against

Defining a New North Star: Aligning Local Control Accountability Plans to College and Career Readiness. Policy Brief

Science.gov (United States)

Beach, Paul; Thier, Michael; Lench, Sarah Collins; Coleman, Matt

2015-01-01

Educators have the increasingly difficult task of preparing students to live, learn, and work in the 21st century. Amidst those challenges, a growing body of research suggests that college and career readiness depends upon students' ability to think critically, learn how to learn, communicate, and collaborate. The No Child Left Behind (NCLB) era…

Study of Frequency of Errors and Areas of Weaknesses in Business Communications Classes at Kapiolani Community College.

Science.gov (United States)

Uehara, Soichi

This study was made to determine the most prevalent errors, areas of weakness, and their frequency in the writing of letters so that a course in business communications classes at Kapiolani Community College (Hawaii) could be prepared that would help students learn to write effectively. The 55 participating students were divided into two groups…

Planning for College Success

Science.gov (United States)

PEPNet, 2009

2009-01-01

"Planning for College Success" (PCS) is a curriculum model designed by Sharon Downs, M.S., for a course intended to assist deaf and hard of hearing students during their initial introduction to college life. This program allows students to work one-on-one with a counselor to plan for their college success. The program includes short-term goals and…

College Information Needs.

Science.gov (United States)

Cibik, Margaret A.

1982-01-01

A survey of a sampling of college-bound high school seniors in Arizona was undertaken to determine students' information needs for college choice. Items, including institutional, student, and program characteristics, are ranked in order of perceived importance. (MSE)

College Women's Health

Science.gov (United States)

... Health - Learn the facts about HPV, HIV, and birth control. College Women's Social Media Toolkit - Share health tips with your campus community. College Women's Campaign - Find out how your school can join. Sign up for email alerts. Order ...

Homeroom Activities in a College of Technology Based on the Master Plan

Science.gov (United States)

Fuchida, Kunihiiko; Murata, Hideaki; Yuji, Junichiro

Homeroom (HR) activities have an important role in engineering education at technical colleges. Yatsushiro National College of Technology has made a master plan for them and has been putting the plan into practical use since 2002. This plan is comprehensive and has two main categories, social education and career guidance, both being composed of three sub-categories (e.g., self-understanding and making future plans) . Based on the master plan, each HR teacher makes his own plan for HR activities for his classroom at the beginning of the academic year. We have reached a consensus to share our practice and to improve HR activities for years to come. We also recognize that to carry out HR activities based on a master plan that reflects the school's educational goals is essential in order to train students who are well-prepared, both as engineers and as humans.

Assessment of full-time faculty preceptors by colleges and schools of pharmacy in the United States and Puerto Rico.

Science.gov (United States)

Kirschenbaum, Harold L; Zerilli, Tina

2012-10-12

To identify the manner in which colleges and schools of pharmacy in the United States and Puerto Rico assess full-time faculty preceptors. Directors of pharmacy practice (or equivalent title) were invited to complete an online, self-administered questionnaire. Seventy of the 75 respondents (93.3%) confirmed that their college or school assessed full-time pharmacy faculty members based on activities related to precepting students at a practice site. The most commonly reported assessment components were summative student evaluations (98.5%), type of professional service provided (92.3%), scholarly accomplishments (86.2%), and community service (72.3%). Approximately 42% of respondents indicated that a letter of evaluation provided by a site-based supervisor was included in their assessment process. Some colleges and schools also conducted onsite assessment of faculty members. Most colleges and schools of pharmacy assess full-time faculty-member preceptors via summative student assessments, although other strategies are used. Given the important role of preceptors in ensuring students are prepared for pharmacy practice, colleges and schools of pharmacy should review their assessment strategies for full-time faculty preceptors, keeping in mind the methodologies used by other institutions.

Do differentials in the support and advice available at UK schools and colleges influence candidate performance in the medical school admissions interview? A survey of direct school leaver applicants to a UK medical school.

Science.gov (United States)

Lambe, Paul; Waters, Catherine; Bristow, David

2013-09-01

To our knowledge, nothing is known about whether differentials in support and advice during preparation for the interview influence candidate performance and thereby contribute to bias in selection for medical school. To assess if differences in advice and support with preparation for the medical school admissions interview given type of school last attended influence interview score achieved by direct school leaver applicants to study on an undergraduate UK medical degree course. Confidential self-completed on-line questionnaire survey. Interview performance was positively related to whether a teacher, tutor or career advisors at the School or College last attended had advised a respondent to prepare for the interview, had advised about the various styles of medical interview used and the types of questions asked, and what resources were available to help in preparation. Respondents from Private/Independent schools were more likely than those from State schools to have received such advice and support. Differentials in access to advice on and support with preparation for the medical school interview may advantage some candidates over others. This inequity would likely be ameliorated by the provision of an authoritative and comprehensive guide to applying to medical school outlining admission requirements and the preparation strategy applicants should use in order to best meet those requirements. The guide could be disseminated to the Principals of all UK schools and colleges and freely available electronic versions signposted in medical school prospectuses and the course descriptor on the Universities and Colleges Admissions Service.

Generating a Networked Improvement Community to Improve Secondary Mathematics Teacher Preparation: Network Leadership, Organization, and Operation

Science.gov (United States)

Martin, W. Gary; Gobstein, Howard

2015-01-01

The Mathematics Teacher Education Partnership (MTE-Partnership) was formed to address the undersupply of new secondary mathematics teachers who are well prepared to help their students attain the goals of the Common Core State Standards and other college- and career-ready standards. This national consortium of more than 90 universities and 100…

Pre-Service Teachers in Second Life: Are Digital Natives Prepared for a Web 2.0 Experience?

Science.gov (United States)

Inman, Christopher T.

2010-01-01

Today's college students, "digital natives," have had digital technology at their fingertips (Rushkoff, 1996; Prensky, 2001a). Technology habits and expectations of young people are changing; the educational and business worlds have placed a focus on skills called "21st century skills," to prepare students for the digital age (Lemke, 2002). Skills…

Unravelling the magmatic system beneath a monogenetic volcanic complex (Jagged Rocks Complex, Hopi Buttes, AZ, USA)

Science.gov (United States)

Re, G.; Palin, J. M.; White, J. D. L.; Parolari, M.

2017-12-01

The Jagged Rocks complex is the eroded remnant of the plumbing systems of closely spaced monogenetic alkaline volcanic centres in the southern Hopi Buttes Volcanic Field (AZ, USA). It contains different clinopyroxene populations with distinctive textures and geochemical patterns. In the Northwestern part of the complex, which exposes the best developed system of conduits, most of the clinopyroxenes consist of large- to medium-sized resorbed cores overgrown by euhedral rims (type 1), small moderately resorbed greenish cores with the same overgrown rims (type 2), and phlogopite as an accessory phase. By contrast, in the Southern part of the complex the majority of clinopyroxenes are euhedral with oscillatory zonation (type 3) and are accompanied by minor euhedral olivine. The differences between these mineral assemblages indicate a composite history of crystallization and magmatic evolution for the two parts of the complex, governed by different mechanisms and ascent patterns from a single source at 50 km depth (16 kbar). The Northwest system preserves a high-pressure assemblage that cooled rapidly from near-liquidus conditions, suggesting direct ascent from the source to the surface at high-to-moderate transport rates (average 1.25 m/s). By contrast, the Southern system represents magma that advanced upward at much lower overall ascent rates, stalling at times to form small-volume mid-crustal storage zones (e.g., sills or a network of sheeted intrusions); this allowed the re-equilibration of the magma at lower pressure ( 30 km; 8 kbar), and led to nucleation and growth of euhedral clinopyroxene and olivine phenocrysts.

Effect of Friction Stir Welding Parameters on the Mechanical and Microstructure Properties of the Al-Cu Butt Joint

Directory of Open Access Journals (Sweden)

Sare Celik

2016-05-01

Full Text Available Friction Stir Welding (FSW is a solid-state welding process used for welding similar and dissimilar materials. FSW is especially suitable to join sheet Al alloys, and this technique allows different material couples to be welded continuously. In this study, 1050 Al alloys and commercially pure Cu were produced at three different tool rotation speeds (630, 1330, 2440 rpm and three different tool traverse speeds (20, 30, 50 mm/min with four different tool position (0, 1, 1.5, 2 mm by friction stir welding. The influence of the welding parameters on the microstructure and mechanical properties of the joints was investigated. Tensile and bending tests and microhardness measurements were used to determine the mechanical properties. The microstructures of the weld zone were investigated by optical microscope and scanning electron microscope (SEM and were analyzed in an energy dispersed spectrometer (EDS. Intermetallic phases were detected based on the X-ray diffraction (XRD analysis results that evaluated the formation of phases in the weld zone. When the welding performance of the friction stir welded butt joints was evaluated, the maximum value obtained was 89.55% with a 1330 rpm tool rotational speed, 20 mm/min traverse speed and a 1 mm tool position configuration. The higher tensile strength is attributed to the dispersion strengthening of the fine Cu particles distributed over the Al material in the stir zone region.

Early College High Schools

Science.gov (United States)

Dessoff, Alan

2011-01-01

For at-risk students who stand little chance of going to college, or even finishing high school, a growing number of districts have found a solution: Give them an early start in college while they still are in high school. The early college high school (ECHS) movement that began with funding from the Bill and Melinda Gates Foundation 10 years ago…

FY 1978-79 Zero-Base Budget Review. The Colorado State System of Community and Junior Colleges: A Summary.

Science.gov (United States)

Tollefson, Terrence A.

Two reports are presented in this document prepared for the Colorado State Legislature. The first, a zero-base budget review, presents a summary of the characteristics of the student population served by Colorado's 11 junior colleges. The summary includes statistics on age range, state of residence, gender, ethnic background, types of financial…

Experimental and analytical study of the DC breakdown characteristics of polypropylene laminated paper with a butt gap condition considering the insulation design of superconducting cable

Science.gov (United States)

Seo, In-jin; Choi, Won; Seong, Jae-gyu; Lee, Bang-wook; Koo, Ja-yoon

2014-08-01

It has been reported that the insulation design under DC stress is considered as one of the critical factors in determining the performance of high-voltage direct current (HVDC) superconducting cable. Therefore, it is fundamentally necessary to investigate the DC breakdown characteristics of the composite insulation system consisting of liquid nitrogen (LN2)/polypropylene-laminated-paper (PPLP). In particular, the insulation characteristics under DC polarity reversal condition should be verified to understand the polarity effect of the DC voltage considering the unexpected incidents taking place at line-commutated-converters (LCC) under service at a DC power grid. In this study, to examine the variation of DC electric field strength, the step voltage and polarity reversal breakdown tests are performed under DC stress. Also, we investigate the electric field distributions in a butt gap of the LN2/PPLP condition considering the DC polarity reversal by using simulation software.

College Drinking - Changing the Culture

Science.gov (United States)

... about college alcohol policies College Drinking - Changing the Culture This is your one-stop resource for comprehensive ... More about special features College Drinking - Changing the Culture This is your one-stop resource for comprehensive ...

Retail yields and palatability evaluations of individual muscles from wet-aged and dry-aged beef ribeyes and top sirloin butts that were merchandised innovatively.

Science.gov (United States)

Smith, A M; Harris, K B; Griffin, D B; Miller, R K; Kerth, C R; Savell, J W

2014-05-01

Paired ribeyes (n=24) and top sirloin butts (n=24) were dry-aged or wet-aged for 35 days before being merchandised as individual muscles: M. spinalis thoracis, M. longissimus thoracis, M. gluteobiceps, and M. gluteus medius. Wet-aged subprimals had greater saleable yields than dry-aged. Dry-aged M. spinalis thoracis and M. gluteobiceps received lower consumer overall like and flavor ratings than did wet-aged; interior muscles - M. longissimus thoracis and M. gluteus medius - did not differ. Trained panelists found higher musty and putrid flavors for dry-aged muscles closer to exterior surface. These flavors may have contributed to lower consumer overall like and flavor ratings for dry-aged M. spinalis thoracis and M. gluteobiceps. Using innovative styles to cut beef allows for greater merchandising options. However, development of undesirable flavor characteristics may be more pronounced when exterior muscles - M. spinalis thoracis and M. gluteobiceps - are exposed during dry-aging to extreme conditions and are consumed individually. Copyright © 2013 Elsevier Ltd. All rights reserved.

First Generation College Students in STEM: Counter Stories of Success

Science.gov (United States)

Hernandez, Carol D.

First-generation community college Science, Technology, Engineering, and Mathematics (STEM) students have unique challenges in transferring to a four-year college. This is especially true for Latin and African American students who may experience multiple challenges, including discrimination, immigration issues and language issues, and sometimes poor academic preparation in their K-12 education. This project used a grounded theory approach to explore through an equity lens the educational journey of seven Los Medanos College students who have successfully transferred to a four-year institution were interviewed. All of these students that participated in this project were former Mathematics Engineering Science Achievement Program (MESA) students at Los Medanos College. The MESA Program is a learning community that provides academic support for "educationally and economically disadvantaged" students so they can excel in math and science, transfer to four-year institutions as majors in math-based fields, and graduate with baccalaureate degrees in STEM majors. Several intervention strategies are embedded into the program, including: counseling, mentors, a learning center, tutors, financial aid and transfer workshops, and internship and scholarship opportunities. The students were interviewed and asked several questions regarding their high school life, MESA, and community college and transfer experiences. The main theoretical framework utilized to analyze the interviews was Border Lands theory because these students created a safe space that allowed them to straddle their life at home and their life at school. Interviews with these students reveal seven successful, happy, and engaged students. Several themes emerged with respect to the importance of students' finding a major that they love, finding community, and the importance of teachers, family, and engagement in their success. The results of this project also emphasize the importance of hiring passionate teachers

Infrared Spectroscopy as a Preview of Coming Attractions: Teaching Chemistry with Instrumental Methods at Two-Year Colleges

Science.gov (United States)

Brown, David R.; Bushey, Michelle

2010-01-01

Two-year colleges (2YCs) provide a significant amount of chemical education to undergraduates in the United States. By design, the charge of the 2YCs is to provide coursework at the lower-division level. Nonetheless, general chemistry courses in 2YCs can be enhanced with content to prepare future chemistry majors for upper-division education. The…

Getting them enrolled is only half the battle: college success as a function of race or ethnicity, gender, and class.

Science.gov (United States)

Keels, Micere

2013-01-01

This study examines the gender and racial or ethnic gaps in college grades and graduation of a 1999 freshman cohort of students attending 24 selective predominantly White institutions (PWIs) and the factors that account for observed gaps. The study is guided by the question of whether gender, race or ethnicity, and socioeconomic status combine to affect college outcomes or whether they interact so that outcomes are more positive or adverse for one group than another. Gender gaps were observed for Black and Latino students. For Black students, the gender gap in degree attainment widened once sociodemographic factors were considered. In contrast, the gender gap for Latino students narrowed and became insignificant when sociodemographics were controlled. Additional within-group interactions were also evident. For example, the 6-year college graduation rates were higher for Black females than for males whose mothers did not have college degrees, but no gender gap existed when the mother had a college degree. These results show that among this sample of academically motivated students, the significance of gender depends on race and socioeconomic status. This suggests that improving minority success, especially for Black men at PWIs, requires extending the analysis beyond prior academic preparation to creating more supportive college environments. © 2013 American Orthopsychiatric Association.

Improving chemical education from high school to college using a more hands-on approach

Science.gov (United States)

Ruddick, Kristie Winfield

In this work, various alternative teaching methods and activities for chemical education are developed, presented, and evaluated. In the first study, an original hands-on activity using LEGO® blocks to model ionic chemical formulas is presented together with quantitative and qualitative data regarding its educational effectiveness. Students explore cation to anion ratios using LEGO® blocks to represent trivalent, divalent and monovalent cations and anions. High school chemistry students who participated in the LEGO® lab showed significantly higher post-test scores than other students. The second study grows out of the creation of a computational lab module that is shown to significantly increase student learning in the subject of molecular orbital theory in first semester college General Chemistry. The third and final study presented is a course redesign project for college CHEM 1100, Preparation for General Chemistry. In this project the classroom is “flipped”. Students watch video lectures at home, and spend class time working with peers and the instructor on problem solving activities. The results presented here are one of the first quantitative studies showing the effectiveness of “flipping the classroom”. Students who were taught using the Reverse-Instruction (RI) method had significantly higher success in both the Preparation for General Chemistry course and traditionally taught General Chemistry I the following semester.

Mentorship through advisory colleges.

Science.gov (United States)

Murr, Andrew H; Miller, Carol; Papadakis, Maxine

2002-11-01

Medical students face pressures ranging from the need to create a social network to learning vast amounts of scientific material. Students often feel isolated in this system and lack mentorship. In order to counteract feelings of bureaucratic anonymity and isolation, the University of California San Francisco has created an advisory college to foster the professional and personal growth and well being of students. UCSF has developed a formal structure to advise medical students. A selection committee, chaired by the associate dean of student affairs, appointed five faculty mentors to head advisory colleges. These five colleges serve as the advising and well-being infrastructure for the students. Mentors were chosen from a balanced range of clinical disciplines, both primary and specialty. The disciplines are obstetrics-gynecology, otolaryngology/head and neck surgery, medicine, pediatrics, and psychiatry. The mentors have demonstrated excellence in advising and counseling of students. Mentors meet individually at the beginning of the academic year with incoming first-year and second-year students. They then have bimonthly meetings with eight to ten students within each college throughout the academic year. Curricula for these group sessions include well-being discussions and coping techniques, sessions on the hidden and informal curriculum of professionalism, and discussions on career choices and strategies. For third-year students, advisory college meetings are scheduled during intersessions, which are weeklong courses that occur between the eight-week clerkship blocks. Mentors are available throughout the year to meet with students on an as-needed basis, and advisory colleges may hold group social activities. The dean's office supports each mentor with 20% salary and provides administrative support for the group college activities. Historically, UCSF students feel they receive an excellent education and appropriate job opportunities, but they do not feel they

STUDY AND ANALYSIS OF THE EFFECT OF WELDING PROCESS ON DISTORTION WITH 304L STAINLESS STEEL WELD JOINTS

OpenAIRE

Dhananjay Kumar*, Dharamvir mangal

2017-01-01

The effect of welding process on the distortion with 304L stainless steel 12thk weld joints made by TIG (tungsten inert gas) and SMAW (Shielded metal arc welding) welding process involving different type joint configuration have been studied. The joint configurations employed were double V-groove edge preparation for double side SMAW welding and square – butt preparation for double side TIG welding. All weld joints passed by radiographic. Distortion measurements were carried out using height ...

Navigating the transition to college: First-generation undergraduates negotiate identities and search for success in STEM and non-STEM fields

Science.gov (United States)

Mussey, Season Shelly

2009-12-01

surveys and individual interviews with the participants, twenty student narratives were written and analyzed. The students' narratives provide a picture of how these underrepresented students are experiencing the transition to college. In this sample, five factors impact the students' college-going academic identity development, major choice, and career path: (1) college preparation in high school, (2) self-efficacy, (3) success in college academics, (4) affinity group participation, and (5) interaction with college faculty.

Family and College Environmental Exposures Mediate the Relationship between Parental Education and Depression among College Students.

Science.gov (United States)

Zhai, Hui; Chen, Lu; Yang, Yanjie; Sun, Hailian; Pan, Hui; He, Jincai; Zhu, Xiongzhao; Sui, Hong; Wang, Wenbo; Qiu, Xiaohui; Qiao, Zhengxue; Yang, Xiuxian; Yang, Jiarun; Yu, Yunmiao; Ban, Bo; He, Changzhi

2016-01-01

Depression is a major health concern for college students due to its substantial morbidity and mortality. Although low parental education has been identified as a factor in depression in college students, the mechanisms through which parental educational achievement affects students' depression are not well understood. We tested whether adverse family and college environments mediate the relationship between parental educational level and depression among Chinese college students. A total of 5180 respondents were selected using a cross-sectional survey. We examined the association of parental education, adverse family and college environments with depression in college students using the Adolescent Self-Rating Life Events Checklist, Beck Depression Inventory and socio-demographic questionnaires. Lower parental educational level is significantly correlated with depression in college students in our sample. Additionally, low family economic status, paternal or maternal unemployment, long periods spent apart from family, family conflicts, having been scolded and beaten by parents, poor or dissatisfying test performance, conflict with friends, heavy course load and failure in selection processes are also associated with parental education. Low family economic status, paternal or maternal unemployment, long periods spent apart from family, family conflicts, poor or dissatisfying test performance, conflict with friends and heavy course load mediated the relationship between parental education and depression in college students. Adverse family and college environments could explain the influence of parental educational level on depression in college students.

Pre-college education

Science.gov (United States)

Stein, Sylvia

1990-01-01

Pre-college education efforts are many and varied, involving the teachers, students, parents, museums, and youth groups. However, it is necessary to reach out to school administration at all levels if teachers are to be innovative in their approaches. This introductory meeting clearly indicated that more interaction between the participants would be profitable. It is clear that the science pipeline leading from kindergarten to college entry needs to be filled with students. What is not clear is how we can do it. The plethora of projects being pursued by the NASA Space Grant College Fellowship (NSGC) programs to accomplish that goal are heartening and exciting. However, this large gamut of programs may also indicate how new we are in this game and how little anyone knows about creating a pre-college interest in science and engineering. In a way, it resembles the situation of the common cold--there is no known cure yet, so there are many so-called remedies. Unfortunately, the time we had together was entirely too short to address the evaluation situation, so that we can in the future zero in on the most effective approaches. This report is a summary of the many ways the different NSGC' s are approaching pre-college education and a list of suggestions.

Stackable Credentials and Career/college Pathways in Culinary Arts at Kingsborough Community College, CUNY

Science.gov (United States)

Audant, Anne Babette

2016-01-01

Discussions of workforce development emphasize stackable training, and assume linear advancement and alignment, through college and career paths. Stackable credentials have become a best practice for community colleges across the United States as they struggle to advance the college completion agenda and ensure that students graduate with the…

The Impact of the Promise of Scholarships and Altering School Structure on College Plans, Preparation, and Enrollment

OpenAIRE

Pharris-Ciurej, Nikolas; Herting, Jerald R.; Hirschman, Charles

2012-01-01

The Washington State Achiever (WSA) program was a large-scale educational intervention of scholarships, mentoring, and school redesign designed to encourage students from moderate and low income families to attend college in Washington State. Using a quasi-experimental design based on pre- and post-intervention surveys of high school seniors in program and non-program schools, we find a significant WSA effect on educational outcomes, net of the demographic and socioeconomic composition of stu...

Community colleges and economic mobility

OpenAIRE

Natalia A. Kolesnikova

2010-01-01

This paper examines the role of community colleges in the U.S. higher education system and their advantages and shortcomings. In particular, it discusses the population of community college students and economic returns to community college education for various demographic groups. It offers new evidence on the returns to an associate's degree. Furthermore, the paper uses data from the National Survey of College Graduates to compare educational objectives, progress, and labor market outcomes ...

Assessment of SOAP note evaluation tools in colleges and schools of pharmacy.

Science.gov (United States)

Sando, Karen R; Skoy, Elizabeth; Bradley, Courtney; Frenzel, Jeanne; Kirwin, Jennifer; Urteaga, Elizabeth

2017-07-01

To describe current methods used to assess SOAP notes in colleges and schools of pharmacy. Members of the American Association of Colleges of Pharmacy Laboratory Instructors Special Interest Group were invited to share assessment tools for SOAP notes. Content of submissions was evaluated to characterize overall qualities and how the tools assessed subjective, objective, assessment, and plan information. Thirty-nine assessment tools from 25 schools were evaluated. Twenty-nine (74%) of the tools were rubrics and ten (26%) were checklists. All rubrics included analytic scoring elements, while two (7%) were mixed with holistic and analytic scoring elements. A majority of the rubrics (35%) used a four-item rating scale. Substantial variability existed in how tools evaluated subjective and objective sections. All tools included problem identification in the assessment section. Other assessment items included goals (82%) and rationale (69%). Seventy-seven percent assessed drug therapy; however, only 33% assessed non-drug therapy. Other plan items included education (59%) and follow-up (90%). There is a great deal of variation in the specific elements used to evaluate SOAP notes in colleges and schools of pharmacy. Improved consistency in assessment methods to evaluate SOAP notes may better prepare students to produce standardized documentation when entering practice. Copyright © 2017 Elsevier Inc. All rights reserved.

Democracy's College: The American Community College in the 21st Century--Framing the Issue

Science.gov (United States)

Topper, Amelia M.; Powers, Jeanne M.

2013-01-01

In this manuscript, the guest editors of the EPAA Special Issue on "Democracy's College: The American Community College in the 21st Century": a) introduce the background, history, and context of community colleges in the larger higher education landscape; b) summarize the three research papers and two video commentaries that were…

Supportive College Environment for Meaning Searching and Meaning in Life among American College Students

Science.gov (United States)

Shin, Joo Yeon; Steger, Michael F.

2016-01-01

We examined whether American college students who perceive their college environment as supportive for their meaning searching report higher levels of meaning in life. We also examined whether students' perception of college environmental support for meaning searching moderates the relation between the presence of and search for meaning. Students'…

Historic Rust College: Fulfilling a Mission.

Science.gov (United States)

Hoffman, Carl

1989-01-01

Describes Rust College, a Mississippi college dedicated to educating Blacks from economically and educationally impoverished backgrounds. Discusses the college's financial management, recent fund-raising efforts, building program, and academic programs. Examines the role of the predominantly Black college and Rust's mission to help students…

Second Life®: A 3D Virtual Immersive Environment for Teacher Preparation Courses in a Distance Education Program

Science.gov (United States)

Hartley, Melissa D.; Ludlow, Barbara L.; Duff, Michael C.

2015-01-01

Many colleges and universities rely upon online programs to support distance delivery of personnel preparation programs in special education and related services. These distance education programs enable individuals who live or work in rural communities to access training programs to earn teaching certification and assist rural schools in…