Sample records for m1a2 abrams 360-degree

  1. Developing 360 degree feedback system for KINS

    Energy Technology Data Exchange (ETDEWEB)

    Han, In Soo; Cheon, B. M.; Kim, T. H.; Ryu, J. H. [Chungman National Univ., Daejeon (Korea, Republic of)


    This project aims to investigate the feasibility of a 360 degree feedback systems for KINS and to design guiding rules and structures in implementing that systems. Literature survey, environmental analysis and questionnaire survey were made to ensure that 360 degree feedback is the right tool to improve performance in KINS. That review leads to conclusion that more readiness and careful feasibility review are needed before implementation of 360 degree feedback in KINS. Further the project suggests some guiding rules that can be helpful for successful implementation of that system in KINS. Those include : start with development, experiment with one department, tie it to a clear organization's goal, train everyone involve, make sure to try that system in an atmosphere of trust.

  2. 360-degree feedback for medical trainees

    DEFF Research Database (Denmark)

    Holm, Ellen; Holm, Kirsten; Sørensen, Jette Led


    In 360-degree feedback medical colleagues and collaborators give a trainee feedback by answering a questionnaire on behaviour of the trainee. The questionnaire may contain questions answered on a scale or/and they may contain open questions. The result from 360-degree feedback is used for formative...... feedback and assessment. In order to secure reliability 8-15 respondents are needed. It is a matter of discussion whether the respondents should be chosen by the trainee or by a third part, and if respondents should be anonymous. The process includes a feedback session with a trained supervisor....

  3. Developing Your 360-Degree Leadership Potential. (United States)

    Verma, Nupur; Mohammed, Tan-Lucien; Bhargava, Puneet


    Radiologists serve in leadership roles throughout their career, making leadership education an integral part of their development. A maxim of leadership style is summarized by 360-Degree Leadership, which highlights the ability of a leader to lead from any position within the organization while relying on core characteristics to build confidence from within their team. The qualities of leadership discussed can be learned and applied by radiologists at any level. These traits can form a foundation for the leader when faced with unfavorable events, which themselves allow the leader an opportunity to build trust. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.


    Directory of Open Access Journals (Sweden)



    Full Text Available OBJECTIVE OF THE STUDY: To study the efficacy of underlay tympanoplasty by elevating the annulus by 360 degrees. SUBJECTS AND METHODS : Two hundred patients with chronic otitis media , tubotympanic disease , inactive stage who underwent tympanoplasty by the above technique between the years 2009 to 2013 were selected for the study as and when they were admitted. All the patients were followed up for 6 months fol lowing surgery. Any complications like secondary infection , wound dehiscence , granulations , were looked for and treated appropriately. Status of the neotympanum was evaluated at the end of 3 months. Any anterior blunting , medialisation or lateralisation of the graft was noted. Any residual perforation was considered as failure. Hearing was evaluated in all patients with an intact neotympanum. RESULTS : Our study showed an overall success rate of 96% as far as graft uptake was concerned. Hearing improvement w as seen in 93% of our patients. 6 patients had complete air bone gap closure , 49 had AB gap of 10db or less , 131 had AB gap of 11 - 20db. 14 patients had no improvement in hearing. Overall hearing improvement was seen in 93% of our patients. CONCLUSION : In c onclusion 360 degree sub - annular tympanoplasty is a efficient technique of tympanoplasty with very good results.

  5. The 360 Degree Fulldome Production "Clockwork Ocean" (United States)

    Baschek, B.; Heinsohn, R.; Opitz, D.; Fischer, T.; Baschek, T.


    The investigation of submesoscale eddies and fronts is one of the leading oceanographic topics at the Ocean Sciences Meeting 2016. In order to observe these small and short-lived phenomena, planes equipped with high-resolution cameras and fast vessels were deployed during the Submesoscale Experiments (SubEx) leading to some of the first high-resolution observations of these eddies. In a future experiment, a zeppelin will be used the first time in marine sciences. The relevance of submesoscale processes for the oceans and the work of the eddy hunters is described in the fascinating 9-minute long 360 degree fulldome production Clockwork Ocean. The fully animated movie is introduced in this presentation taking the observer from the bioluminescence in the deep ocean to a view of our blue planet from space. The immersive media is used to combine fascination for a yet unknown environment with scientific education of a broad audience. Detailed background information is available at the parallax website The Film is also available for Virtual Reality glasses and smartphones to reach a broader distribution. A unique Mobile Dome with an area of 70 m² and seats for 40 people is used for science education at events, festivals, for politicians and school classes. The spectators are also invited to participate in the experiments by presenting 360 degree footage of the measurements. The premiere of Clockwork Ocean was in July 2015 in Hamburg, Germany and will be worldwide available in English and German as of fall 2015. Clockwork Ocean is a film of the Helmholtz-Zentrum Geesthacht produced by Daniel Opitz and Ralph Heinsohn.

  6. 360-degree retinectomy for severe ocular rupture

    Institute of Scientific and Technical Information of China (English)

    ZHANG Mao-nian; JIANG Cai-hui


    Objective: To investigate the effect of 360-degree retinectomy for severe ocular rupture and evaluate the related factors associated with prognosis.Methods: A retrospective analysis was performed on 28 consecutive patients, 18 men and 10 women, with severe ocular rupture admitted to the Chinese PLA General Hospital between January 1999 and January 2002. The patients' ages ranged from 16 to 58 years, mean 29.5years. All operations were performed by the first author.All patients underwent standard 3-port pars plana vitrectomy with scleral encircling buckle,endophotocoagulation, and tamponaded with silicone oil.Lensectomy were performed on 15 eyes. 360-degree retinotomy and retinectomy were performed at anterior equator on 16 eyes, and posterior equator on 12 eyes.Results: During operation, all patients were confirmed to have vitreous hemorrhage and retinal detachment, in which hemorrhagic ciliary body detachment was found in 9 eyes, suprachoroidal hemorrhage in 12 eyes,retinal twisting like flower stalk in 11 eyes, and retinal incarceration in 17 eyes. Postoperative follow-up was conducted in 26 cases, ranged from 6 months to 46 months.Retinal reattachment achieved in 20 eyes (76. 9%), in which three patients' retina was reattached after revitrectomy. The silicone oil was removed at the fourth month in 8 eyes postoperatively. Corrected visual acuity of 0.02 or more was in 14 eyes (70. 0%) among the 20patients with reattached retina. Visual acuity of 0.05 or more was in 7 eyes ( 35.0 % ), and 0.1 or more was in 3eyes. The best visual acuity was 0.3 in 1 eye.Conclusions: Retinectomy may improve the prognosis of severe ocular rupture and save the visual function of some patients.

  7. 360-degree panorama in 3D (United States)


    This 360-degree panorama was taken in stereo by the deployed Imager for Mars Pathfinder (IMP) on Sol 3. 3D glasses (red left lens, blue right lens) are necessary to help identify surface detail. All three petals, the perimeter of the deflated airbags, deployed rover Sojourner, forward and backward ramps and prominent surface features are visible, including the double Twin Peaks at the horizon. Sojourner would later investigate the rock Barnacle Bill just to its left in this image, and the larger rock Yogi at its forward right.The IMP is a stereo imaging system with color capability provided by 24 selectable filters -- twelve filters per 'eye.' It stands 1.8 meters above the Martian surface, and has a resolution of two millimeters at a range of two meters. Stereoscopic imaging brings exceptional clarity and depth to many of the features in this image, particularly the ridge beyond the far left petal and the large rock Yogi. The curvature and misalignment of several section are due to image parallax.Mars Pathfinder is the second in NASA's Discovery program of low-cost spacecraft with highly focused science goals. The Jet Propulsion Laboratory, Pasadena, CA, developed and manages the Mars Pathfinder mission for NASA's Office of Space Science, Washington, D.C. JPL is a division of the California Institute of Technology (Caltech). The Imager for Mars Pathfinder (IMP) was developed by the University of Arizona Lunar and Planetary Laboratory under contract to JPL. Peter Smith is the Principal Investigator.Click below to see the left and right views individually. [figure removed for brevity, see original site] Left [figure removed for brevity, see original site] Right

  8. Portion of Enhanced 360-degree Gallery Pan (United States)


    This is a sub-section of the 'geometrically improved, color enhanced' version of the 360-degree panorama heretofore known as the 'Gallery Pan', the first contiguous, uniform panorama taken by the Imager for Mars Pathfinder (IMP) over the course of Sols 8, 9, and 10. Different regions were imaged at different times over the three Martian days to acquire consistent lighting and shadow conditions for all areas of the panorama.The IMP is a stereo imaging system that, in its fully deployed configuration, stands 1.8 meters above the Martian surface, and has a resolution of two millimeters at a range of two meters. In this geometrically improved version of the panorama, distortion due to a 2.5 degree tilt in the IMP camera mast has been removed, effectively flattening the horizon.The IMP has color capability provided by 24 selectable filters -- twelve filters per 'eye'. Its red, green, and blue filters were used to take this image. The color was digitally balanced according to the color transmittance capability of a high-resolution TV at the Jet Propulsion Laboratory (JPL), and is dependent on that device. In this color enhanced version of the panorama, detail in surface features are brought out via changes to saturation and intensity, holding the original hue constant. A threshold was applied to avoid changes to the sky.At left is a Lander petal and a metallic mast which is a portion of the low-gain antenna. Misregistration in the antenna and other Lander features is due to parallax in the extreme foreground. Another Lander petal is at the right, showing the fully deployed forward ramp.Mars Pathfinder is the second in NASA's Discovery program of low-cost spacecraft with highly focused science goals. The Jet Propulsion Laboratory, Pasadena, CA, developed and manages the Mars Pathfinder mission for NASA's Office of Space Science, Washington, D.C. JPL is a division of the California Institute of Technology (Caltech). The IMP was developed by the University of Arizona Lunar

  9. 360 degree realistic 3D image display and image processing from real objects (United States)

    Luo, Xin; Chen, Yue; Huang, Yong; Tan, Xiaodi; Horimai, Hideyoshi


    A 360-degree realistic 3D image display system based on direct light scanning method, so-called Holo-Table has been introduced in this paper. High-density directional continuous 3D motion images can be displayed easily with only one spatial light modulator. Using the holographic screen as the beam deflector, 360-degree full horizontal viewing angle was achieved. As an accompany part of the system, CMOS camera based image acquisition platform was built to feed the display engine, which can take a full 360-degree continuous imaging of the sample at the center. Customized image processing techniques such as scaling, rotation, format transformation were also developed and embedded into the system control software platform. In the end several samples were imaged to demonstrate the capability of our system.

  10. 360 degree realistic 3D image display and image processing from real objects (United States)

    Luo, Xin; Chen, Yue; Huang, Yong; Tan, Xiaodi; Horimai, Hideyoshi


    A 360-degree realistic 3D image display system based on direct light scanning method, so-called Holo-Table has been introduced in this paper. High-density directional continuous 3D motion images can be displayed easily with only one spatial light modulator. Using the holographic screen as the beam deflector, 360-degree full horizontal viewing angle was achieved. As an accompany part of the system, CMOS camera based image acquisition platform was built to feed the display engine, which can take a full 360-degree continuous imaging of the sample at the center. Customized image processing techniques such as scaling, rotation, format transformation were also developed and embedded into the system control software platform. In the end several samples were imaged to demonstrate the capability of our system.

  11. Comparison of 360 degrees and 180 degrees data collection in SPECT imaging. (United States)

    Knesaurek, K


    The problem of using 360 degrees or 180 degrees data sampling techniques in transaxial SPECT imaging is still to be solved. A theoretical point source study for an ideal response detector has shown, for objects which are close enough to the origin of the reconstructed area, that there are significant differences between sections obtained by different sampling methods. A computer simulation study of line sources in a homogeneous attenuated medium has confirmed the results of clinical studies in which significant image distortion has been observed in 180 degrees sections but not in 360 degrees reconstructed images.

  12. 360 Degrees Project: Final Report of 1972-73. National Career Education Television Project. (United States)

    Wisconsin Univ., Madison. Univ. Extension.

    Project 360 Degrees was a mass-media, multi-State, one-year effort in adult career education initiated by WHA-TV, the public television station of the University of Wisconsin-Extension, and funded by the U.S. Office of Education. The overall goal of the project was to provide, through a coordinated media system, information and motivation that…

  13. 360 degree viewable floating autostereoscopic display using integral photography and multiple semitransparent mirrors. (United States)

    Zhao, Dong; Su, Baiquan; Chen, Guowen; Liao, Hongen


    In this paper, we present a polyhedron-shaped floating autostereoscopic display viewable from 360 degrees using integral photography (IP) and multiple semitransparent mirrors. IP combined with polyhedron-shaped multiple semitransparent mirrors is used to achieve a 360 degree viewable floating three-dimensional (3D) autostereoscopic display, having the advantage of being able to be viewed by several observers from various viewpoints simultaneously. IP is adopted to generate a 3D autostereoscopic image with full parallax property. Multiple semitransparent mirrors reflect corresponding IP images, and the reflected IP images are situated around the center of the polyhedron-shaped display device for producing the floating display. The spatial reflected IP images reconstruct a floating autostereoscopic image viewable from 360 degrees. We manufactured two prototypes for producing such displays and performed two sets of experiments to evaluate the feasibility of the method described above. The results of our experiments showed that our approach can achieve a floating autostereoscopic display viewable from surrounding area. Moreover, it is shown the proposed method is feasible to facilitate the continuous viewpoint of a whole 360 degree display without flipping.

  14. The value of subjectivity: problems and prospects for 360-degree appraisal systems

    NARCIS (Netherlands)

    Heijden, van der Beatrice I.J.M.; Nijhof, André H.J.


    This article focuses on the problems and prospects of 360-degree feedback methods. The rationale behind these appraisal systems is that different evaluation perspectives add objectivity and incremental validity to the assessment of individual performance. This assumption is challenged in this articl

  15. 360-Degree Rhetorical Analysis of Job Hunting: A Four-Part, Multimodal Project (United States)

    Ding, Huiling; Ding, Xin


    This article proposes the use of a four-component multimodal employment project that offers students a 360-degree understanding of the rhetorical situations surrounding job searches. More specifically, we argue for the use of the four deliverables of written resumes and cover letters, mock oral onsite interview, video resume analysis, and peer…

  16. Doctors' perceptions of why 360-degree feedback does (not) work: a qualitative study.

    NARCIS (Netherlands)

    Overeem, K.; Wollersheim, H.C.H.; Driessen, E.; Lombarts, K.; Ven, G. van de; Grol, R.P.T.M.; Arah, O.A.


    OBJECTIVES: Delivery of 360-degree feedback is widely used in revalidation programmes. However, little has been done to systematically identify the variables that influence whether or not performance improvement is actually achieved after such assessments. This study aims to explore which factors re

  17. The value of subjectivity: problems and prospects for 360-degree appraisal systems

    NARCIS (Netherlands)

    van der Heijden, Beatrice; Nijhof, A.H.J.


    This article focuses on the problems and prospects of 360-degree feedback methods. The rationale behind these appraisal systems is that different evaluation perspectives add objectivity and incremental validity to the assessment of individual performance. This assumption is challenged in this articl

  18. A Flexible 360-Degree Thermal Sound Source Based on Laser Induced Graphene

    Directory of Open Access Journals (Sweden)

    Lu-Qi Tao


    Full Text Available A flexible sound source is essential in a whole flexible system. It’s hard to integrate a conventional sound source based on a piezoelectric part into a whole flexible system. Moreover, the sound pressure from the back side of a sound source is usually weaker than that from the front side. With the help of direct laser writing (DLW technology, the fabrication of a flexible 360-degree thermal sound source becomes possible. A 650-nm low-power laser was used to reduce the graphene oxide (GO. The stripped laser induced graphene thermal sound source was then attached to the surface of a cylindrical bottle so that it could emit sound in a 360-degree direction. The sound pressure level and directivity of the sound source were tested, and the results were in good agreement with the theoretical results. Because of its 360-degree sound field, high flexibility, high efficiency, low cost, and good reliability, the 360-degree thermal acoustic sound source will be widely applied in consumer electronics, multi-media systems, and ultrasonic detection and imaging.

  19. The value of subjectivity: problems and prospects for 360-degree appraisal systems

    NARCIS (Netherlands)

    van der Heijden, Beatrice; Nijhof, A.H.J.


    This article focuses on the problems and prospects of 360-degree feedback methods. The rationale behind these appraisal systems is that different evaluation perspectives add objectivity and incremental validity to the assessment of individual performance. This assumption is challenged in this

  20. Doctors' perceptions of why 360-degree feedback does (not) work: a qualitative study

    NARCIS (Netherlands)

    K. Overeem; H. Wollersheim; E. Driessen; K. Lombarts; G. van de Ven; R. Grol; O. Arah


    Objectives Delivery of 360-degree feedback is widely used in revalidation programmes. However, little has been done to systematically identify the variables that influence whether or not performance improvement is actually achieved after such assessments. This study aims to explore which factors rep

  1. From the Eye of the Nurses: 360-Degree Evaluation of Residents (United States)

    Ogunyemi, Dotun; Gonzalez, Gustavo; Fong, Alex; Alexander, Carolyn; Finke, David; Donnon, Tyrone; Azziz, Ricardo


    Introduction: Evaluations from the health care team can provide feedback useful in guiding residents' professional growth. We describe the significance of 360-degree evaluation of residents by the nursing staff. Methods: A retrospective analysis of 1642 nurses' anonymous evaluations on 26 residents from 2004 to 2007 was performed. Nurses'…

  2. A Research to Determining the Impact of 360 Degree Performance Evaluation System on Organizational Commitment

    Directory of Open Access Journals (Sweden)

    Gulten Eren Gumustekin


    Full Text Available This study tries to find out whether the 360 degree performance evaluation system (PES has an influence on employees in terms of organizational commitment. Then it attempts to determine direction of the impact on commitment. In more detail, the study focuses on the eight key competencies acknowledged by the 360 Degree PES and their respective impacts on organizational commitment dimensions namely affective, continuance and normative. To this end, four different organizations were targeted for the survey which was developed to collect attitudinal information relevant to dimensions of organizational commitment and to key competences defined by 360 degree PES. The results mainly show that the businesses which implement 360 degree PES are more likely to have high levels of organizational commitment. The findings indicate an important degree of positive correlation between key competencies and commitment dimensions. The most influential competency on commitment appears to be communication which is followed by leadership, task management, employee development, adaptability to change, training others, human relations and production/work outputs.

  3. Do 360-degree Feedback Survey Results Relate to Patient Satisfaction Measures?


    Hageman, Michiel G. J. S.; Ring, David C.; Gregory, Paul J.; Rubash, Harry E.; Harmon, Larry


    Background There is evidence that feedback from 360-degree surveys—combined with coaching—can improve physician team performance and quality of patient care. The Physicians Universal Leadership-Teamwork Skills Education (PULSE) 360 is one such survey tool that is used to assess work colleagues’ and coworkers’ perceptions of a physician’s leadership, teamwork, and clinical practice style. The Clinician & Group-Consumer Assessment of Healthcare Providers and System (CG-CAHPS), developed by the ...

  4. 360-degree fringe-projection profilometry of discontinuous solids with 2 co-phased projectors and 1-camera

    CERN Document Server

    Servin, Manuel; Padilla, J M


    We describe a theoretical analysis and experimental set-up of a co-phased 360-degree fringe-projection profilometer. This 360-degree profilometer is built using 2-projections and 1-camera and can digitize discontinuous solids with diffuse light surface. A 360-degree profilometer rotate the object a full revolution to digitize the analyzing solid. Although 360-degree profilometry is not new, we are proposing however a new experimental set-up which permits the 360-degree digitalization of discontinuous (piecewise-continuous) solids. The main advantage of using this co-phased 2-projectors profilometer is that self-occluding shadows due to discontinuities are solved efficiently. Previous 1-projector, 1-camera 360-degree profilometers generate self-occluding shadows at the solid discontinuities. Yet another advantage of our new profilometer is a trivial line-by-line fringe-data assembling from all 360-degree perspectives. Finally we used a 400 steps/rotation turntable, and a 640x480 pixels CCD camera. Higher resol...

  5. Teacher Evaluation System through the 360 Degree Model and the Electronic Portfolio

    Directory of Open Access Journals (Sweden)

    Francisco Obando Freire


    Full Text Available Models for teacher evaluation should be in line with advances in science and technology, and constitute the most effective means for professional development of university teachers. This paper aims to analyze the 360 degree model, emphasizing the use of management platforms. A literature review on the subject of study was conducted. The model allows evaluating teachers according to four dimensions: self-assessment, assessment by students, peer assessment and teacher’s electronic portfolios. It is concluded that a systematic and comprehensive evaluation results in teacher’s development, which benefits higher education students.

  6. Leadership development in a professional medical society using 360-degree survey feedback to assess emotional intelligence. (United States)

    Gregory, Paul J; Robbins, Benjamin; Schwaitzberg, Steven D; Harmon, Larry


    The current research evaluated the potential utility of a 360-degree survey feedback program for measuring leadership quality in potential committee leaders of a professional medical association (PMA). Emotional intelligence as measured by the extent to which self-other agreement existed in the 360-degree survey ratings was explored as a key predictor of leadership quality in the potential leaders. A non-experimental correlational survey design was implemented to assess the variation in leadership quality scores across the sample of potential leaders. A total of 63 of 86 (76%) of those invited to participate did so. All potential leaders received feedback from PMA Leadership, PMA Colleagues, and PMA Staff and were asked to complete self-ratings regarding their behavior. Analyses of variance revealed a consistent pattern of results as Under-Estimators and Accurate Estimators-Favorable were rated significantly higher than Over-Estimators in several leadership behaviors. Emotional intelligence as conceptualized in this study was positively related to overall performance ratings of potential leaders. The ever-increasing roles and potential responsibilities for PMAs suggest that these organizations should consider multisource performance reviews as these potential future PMA executives rise through their organizations to assume leadership positions with profound potential impact on healthcare. The current findings support the notion that potential leaders who demonstrated a humble pattern or an accurate pattern of self-rating scored significantly higher in their leadership, teamwork, and interpersonal/communication skills than those with an aggrandizing self-rating.

  7. 360-degrees profilometry using strip-light projection coupled to Fourier phase-demodulation. (United States)

    Servin, Manuel; Padilla, Moises; Garnica, Guillermo


    360 degrees (360°) digitalization of three dimensional (3D) solids using a projected light-strip is a well-established technique in academic and commercial profilometers. These profilometers project a light-strip over the digitizing solid while the solid is rotated a full revolution or 360-degrees. Then, a computer program typically extracts the centroid of this light-strip, and by triangulation one obtains the shape of the solid. Here instead of using intensity-based light-strip centroid estimation, we propose to use Fourier phase-demodulation for 360° solid digitalization. The advantage of Fourier demodulation over strip-centroid estimation is that the accuracy of phase-demodulation linearly-increases with the fringe density, while in strip-light the centroid-estimation errors are independent. Here we proposed first to construct a carrier-frequency fringe-pattern by closely adding the individual light-strip images recorded while the solid is being rotated. Next, this high-density fringe-pattern is phase-demodulated using the standard Fourier technique. To test the feasibility of this Fourier demodulation approach, we have digitized two solids with increasing topographic complexity: a Rubik's cube and a plastic model of a human-skull. According to our results, phase demodulation based on the Fourier technique is less noisy than triangulation based on centroid light-strip estimation. Moreover, Fourier demodulation also provides the amplitude of the analytic signal which is a valuable information for the visualization of surface details.

  8. Do 360-degree feedback survey results relate to patient satisfaction measures? (United States)

    Hageman, Michiel G J S; Ring, David C; Gregory, Paul J; Rubash, Harry E; Harmon, Larry


    There is evidence that feedback from 360-degree surveys-combined with coaching-can improve physician team performance and quality of patient care. The Physicians Universal Leadership-Teamwork Skills Education (PULSE) 360 is one such survey tool that is used to assess work colleagues' and coworkers' perceptions of a physician's leadership, teamwork, and clinical practice style. The Clinician & Group-Consumer Assessment of Healthcare Providers and System (CG-CAHPS), developed by the US Department of Health and Human Services to serve as the benchmark for quality health care, is a survey tool for patients to provide feedback that is based on their recent experiences with staff and clinicians and soon will be tied to Medicare-based compensation of participating physicians. Prior research has indicated that patients and coworkers often agree in their assessment of physicians' behavioral patterns. The goal of the current study was to determine whether 360-degree, also called multisource, feedback provided by coworkers could predict patient satisfaction/experience ratings. A significant relationship between these two forms of feedback could enable physicians to take a more proactive approach to reinforce their strengths and identify any improvement opportunities in their patient interactions by reviewing feedback from team members. An automated 360-degree software process may be a faster, simpler, and less resource-intensive approach than telephoning and interviewing patients for survey responses, and it potentially could facilitate a more rapid credentialing or quality improvement process leading to greater fiscal and professional development gains for physicians. Our primary research question was to determine if PULSE 360 coworkers' ratings correlate with CG-CAHPS patients' ratings of overall satisfaction, recommendation of the physician, surgeon respect, and clarity of the surgeon's explanation. Our secondary research questions were to determine whether CG-CAHPS scores

  9. Increasing medical team cohesion and leadership behaviors using a 360-degree evaluation process. (United States)

    Tumerman, Marc; Carlson, Leanne M Hedberg


    Current national health care issues of affordability, quality, and accessibility have prompted the development of Accountable Care Organizations (ACOs) and Patient-Centered Medical Homes (PCMHs). Components of ACOs and PCMHs call for increased capacities in areas of teamwork, engagement, and physician leadership skills and behaviors. Three hundred sixty degree feedback evaluation processes have been established in corporate environments as effective for increasing capacities in these areas. Recently, health care organizations have begun to adopt the use of such tools with positive outcomes. This article presents a case study of the development and implementation of a 360-degree evaluation process at a family medicine clinic. We also discuss the challenges, successes, and lessons learned along the way.

  10. Profile of a Peace Historian: Irwin Abrams. (United States)

    OAH Magazine of History, 1994


    Discusses the significance of Irwin Abrams to the field of peace history. Describes Abrams' personal life, his work with the American Friends Service Committee, his scholarly work, and his leadership in peace history. Concludes by discussing his research on the Nobel Peace Prize and its recipients. (CFR)

  11. Modeling and computation of flow in a passage with 360-degree turning and multiple airfoils

    Energy Technology Data Exchange (ETDEWEB)

    Shyy, W. (Univ. of Florida, Gainesville, FL (United States). Dept. of Aerospace Engineering); Vu, T.C. (GE Canada, Lanchine, Quebec, (Canada). Hydro Business)


    The spiral casing of a hydraulic turbine is a complex flow device which contains a passage of 360-degree turning and multiple elements of airfoils (the so-called distributor). A three-dimensional flow analysis has been made to predict the flow behavior inside the casing and distributor. The physical model employs a two-level approach, comprising of (1) a global model that adequately accounts for the geometry of the spiral casing but smears out the details of the distributor, and represents the multiple airfoils by a porous medium treatment, and (2) a local model that performs detailed analysis of flow in the distributor region. The global analysis supplies the inlet flow condition for the individual cascade of distributor airfoils, while the distributor analysis yields the information needed for modeling the characteristics of the porous medium. Comparisons of pressure and velocity profiles between measurement and prediction have been made to assess the validity of the present approach. Flow characteristics in the spiral casing are also discussed.

  12. Good to great: using 360-degree feedback to improve physician emotional intelligence. (United States)

    Hammerly, Milton E; Harmon, Larry; Schwaitzberg, Steven D


    The past decade has seen intense interest and dramatic change in how hospitals and physician organizations review physician behaviors. The characteristics of successful physicians extend past their technical and cognitive skills. Two of the six core clinical competencies (professionalism and interpersonal/communication skills) endorsed by the Accreditation Council for Graduate Medical Education, the American Board of Medical Specialties, and The Joint Commission require physicians to succeed in measures associated with emotional intelligence (EI). Using 360-degree anonymous feedback surveys to screen for improvement opportunities in these two core competencies enables organizations to selectively offer education to further develop physician EI. Incorporating routine use of these tools and interventions into ongoing professional practice evaluation and focused professional practice evaluation processes may be a cost-effective strategy for preventing disruptive behaviors and increasing the likelihood of success when transitioning to an employed practice model. On the basis of a literature review, we determined that physician EI plays a key role in leadership; teamwork; and clinical, financial, and organizational outcomes. This finding has significant implications for healthcare executives seeking to enhance physician alignment and transition to a team-based delivery model.

  13. A Descriptive Study of the Performance Appraisal of Supervisors of Spicer Higher Secondary School, Using "360 Degree Feedback" Model (United States)

    Hemati, Hamidreza


    The purpose of the research was to study the performance of the supervisors in the aspects leadership, communication, and task managing by the "360 degree feedback" method. A qualitative research was used to carry out the research study. The researcher formulated three questions that guided the study. An opinionnaire which included 23…

  14. Use of 360-degree assessment of residents in internal medicine in a Danish setting: a feasibility study

    DEFF Research Database (Denmark)

    Allerup, P; Aspegren, K; Ejlersen, E


    BACKGROUND: The aim of the study was to explore the feasibility of 360 degree assessment in early specialist training in a Danish setting. Present Danish postgraduate training requires assessment of specific learning objectives. Residency in Internal Medicine was chosen for the study. It has 65 l...

  15. 360-degree video and X-ray modeling of the Galactic center's inner parsec (United States)

    Post Russell, Christopher Michael; Wang, Daniel; Cuadra, Jorge


    360-degree videos, which render an image over all 4pi steradian, provide a unique and immersive way to visualize astrophysical simulations. Video sharing sites such as YouTube allow these videos to be shared with the masses; they can be viewed in their 360° nature on computer screens, with smartphones, or, best of all, in virtual-reality (VR) goggles. We present the first such 360° video of an astrophysical simulation: a hydrodynamics calculation of the Wolf-Rayet stars and their ejected winds in the inner parsec of the Galactic center. Viewed from the perspective of the super-massive black hole (SMBH), the most striking aspect of the video, which renders column density, is the inspiraling and stretching of clumps of WR-wind material as they makes their way towards the SMBH. We will brielfy describe how to make 360° videos and how to publish them online in their desired 360° format.Additionally we discuss computing the thermal X-ray emission from a suite of Galactic-center hydrodynamic simulations that have various SMBH feedback mechanisms, which are compared to Chandra X-ray Visionary Program observations of the region. Over a 2-5” ring centered on Sgr A*, the spectral shape is well matched, indicating that the WR winds are the dominant source of the thermal X-ray emission. Furthermore, the X-ray flux depends on the SMBH feedback due to the feedback's ability to clear out material from the central parsec. A moderate outburst is necessary to explain the current thermal X-ray flux, even though the outburst ended ˜100 yr ago.

  16. Laboratory investigation of Colgate 360 degrees toothbrush and Oral-B indicator toothbrush for the removal of dental stains. (United States)

    Kleber, Carl J; Kemp, James H; Moore, Michael H; Mintel, Thomas E


    The objective of this in vitro study was to evaluate the stain-removal efficacy of a newly designed manual toothbrush, the Colgate 360 degrees, relative to a commercially available toothbrush, the Oral-B Indicator. A modification of Stookey et al was used to evaluate the stain-removal effects of toothbrushes instead of dentifrice on bovine teeth. A V.8 mechanical cross-brushing machine equipped with the test toothbrushes and adjusted to 500g to enamel surfaces evaluated stain removal using a dentifrice slurry and water after 800 double strokes. The overall results of this laboratory investigation indicate that the Colgate 360 degrees toothbrush is more effective, P < .05, than the commercial Oral-B Indicator toothbrush in removing dental stain and brightening teeth using a standard toothpaste or water.

  17. Fourier phase-demodulation applied to strip-light 360-degrees profilometry of 3D solids; theoretical principles

    CERN Document Server

    Servin, Manuel; Garnica, Guillermo


    360-degrees digitalization of three-dimensional (3D) solids using a projected light-strip is a well established technique. These profilometers project a light-strip over the solid under analysis while the solid is rotated a full revolution. Then a computer program typically extracts the centroid of this light-strip, and by triangulation one obtains the shape of the solid. Here instead of using intensity-based strip centroid estimation, we propose to use Fourier phase-demodulation. This 360-degrees profilometer first constructs a carrier-frequency fringe-pattern by closely adding individual light-strip images. Secondly this high-density fringe-pattern is phase-demodulated using the standard Fourier technique.

  18. ESO unveils an amazing, interactive, 360-degree panoramic view of the entire night sky (United States)


    The first of three images of ESO's GigaGalaxy Zoom project - a new magnificent 800-million-pixel panorama of the entire sky as seen from ESO's observing sites in Chile - has just been released online. The project allows stargazers to explore and experience the Universe as it is seen with the unaided eye from the darkest and best viewing locations in the world. This 360-degree panoramic image, covering the entire celestial sphere, reveals the cosmic landscape that surrounds our tiny blue planet. This gorgeous starscape serves as the first of three extremely high-resolution images featured in the GigaGalaxy Zoom project, launched by ESO within the framework of the International Year of Astronomy 2009 (IYA2009). GigaGalaxy Zoom features a web tool that allows users to take a breathtaking dive into our Milky Way. With this tool users can learn more about many different and exciting objects in the image, such as multicoloured nebulae and exploding stars, just by clicking on them. In this way, the project seeks to link the sky we can all see with the deep, "hidden" cosmos that astronomers study on a daily basis. The wonderful quality of the images is a testament to the splendour of the night sky at ESO's sites in Chile, which are the most productive astronomical observatories in the world. The plane of our Milky Way Galaxy, which we see edge-on from our perspective on Earth, cuts a luminous swath across the image. The projection used in GigaGalaxy Zoom place the viewer in front of our Galaxy with the Galactic Plane running horizontally through the image - almost as if we were looking at the Milky Way from the outside. From this vantage point, the general components of our spiral galaxy come clearly into view, including its disc, marbled with both dark and glowing nebulae, which harbours bright, young stars, as well as the Galaxy's central bulge and its satellite galaxies. The painstaking production of this image came about as a collaboration between ESO, the renowned

  19. Clinical efficacy of Colgate 360 degrees and three commercially available toothbrushes on the removal of desquamated epithelial cells. (United States)

    Williams, Malcolm I; Vazquez, Joe; Cummins, Diane


    A clinical study was done to evaluate the performance of four toothbrushes on the removal of desquamated epithelial cells after brushing according to the manufacturers' instructions for use. This randomized, crossover-design clinical study compared a new manual toothbrush (Colgate 360 degrees) to two commercially available manual toothbrushes (Oral-B CrossAction and Oral-B Indicator) and a commercially available battery-powered toothbrush (Crest SpinBrush PRO). Adult men and women subjects reported to the clinical facility after a 1-week "washout" period of brushing with a regular fluoride dentifrice and a soft-bristled toothbrush. Participants reported having refrained from oral hygiene procedures, eating, and drinking that morning. After providing a baseline rinse sample, subjects brushed their teeth for 1 minute with their assigned toothbrush and a commercially available fluoride toothpaste, then returned 30 minutes later to provide postuse rinse samples. Subjects refrained from dental hygiene, eating, and drinking during the 30-minute evaluation period. To provide the samples, subjects rinsed with 10 mL of sterile phosphate-buffered saline solution for 10 seconds. Each collected sample was centrifuged, resuspended, and run in a colorimetric assay to determine the level of desquamated epithelial cells found in the rinse as measured by the absorbance at 570 nm. Twenty adults completed the study. At baseline, the mean levels of desquamated epithelial cells for the 4 treatments were 0.70+/-0.27, 0.63+/-0.20, 0.69+/-0.30, and 0.62+/-0.31 for the Colgate 360 degrees, Oral-B Indicator, Crest SpinBrush PRO, and Oral-B CrossAction, respectively. Posttreatment, the mean levels of epithelial cells were 0.19, 0.38, 0.42, and 0.34, respectively. All of the treatments provided a statistically significant reduction compared to their respective baseline. In addition, the Colgate 360 degrees toothbrush was statistically significantly better than the other three toothbrushes in

  20. Microscopic Abrams Strogatz model of language competition (United States)

    Stauffer, Dietrich; Castelló, Xavier; Eguíluz, Víctor M.; San Miguel, Maxi


    The differential equation of Abrams and Strogatz for the competition between two languages is compared with agent-based Monte Carlo simulations for fully connected networks as well as for lattices in one, two and three dimensions, with up to 109 agents. In the case of socially equivalent languages, agent-based models and a mean-field approximation give grossly different results.

  1. Extreme embrittlement of austenitic stainless steel irradiated to 75-81 dpa at 335-360{degrees}C

    Energy Technology Data Exchange (ETDEWEB)

    Porollo, S.I.; Vorobjev, A.N.; Konobeev, Yu.V. [Institute of Physics and Power Engineering, Obninsk (Russian Federation)] [and others


    It is generally accepted that void swelling of austenitic steels ceases below some temperature in the range 340-360{degrees}C, and exhibits relatively low swelling rates up to {approximately}400{degrees}C. This perception may not be correct at all irradiation conditions, however, since it was largely developed from data obtained at relatively high displacement rates in fast reactors whose inlet temperatures were in the range 360-370{degrees}C. There is an expectation, however, that the swelling regime can shift to lower temperatures at low displacement rates via the well-known {open_quotes}temperature shift{close_quotes} phenomenon. It is also known that the swelling rates at the lower end of the swelling regime increase continuously at a sluggish rate, never approaching the terminal 1%/dpa level within the duration of previous experiments. This paper presents the results of an experiment conducted in the BN-350 fast reactor in Kazakhstan that involved the irradiation of argon-pressurized thin-walled tubes (0-200 MPa hoop stress) constructed from Fe-16Cr-15Ni-3Mo-Nb stabilized steel in contact with the sodium coolant, which enters the reactor at {approx}270{degrees}C. Tubes in the annealed condition reached 75 dpa at 335{degrees}C, and another set in the 20% cold-worked condition reached 81 dpa at 360{degrees}C. Upon disassembly all tubes, except those in the stress-free condition, were found to have failed in an extremely brittle fashion. The stress-free tubes exhibited diameter changes that imply swelling levels ranging from 9 to 16%. It is expected that stress-enhancement of swelling induced even larger swelling levels in the stressed tubes.

  2. Evaluating professionalism and interpersonal and communication skills: implementing a 360-degree evaluation instrument in an anesthesiology residency program. (United States)

    Meng, Li; Metro, David G; Patel, Rita M


    To implement a 360-degree resident evaluation instrument on the postanesthesia care unit (PACU) rotation and to determine the reliability, feasibility, and validity of this tool for assessing residents' professionalism and interpersonal and communication skills. Thirteen areas of evaluation were selected to assess the professionalism and interpersonal and communication skills of residents during their PACU rotation. Each area was measured on a 9-point Likert scale (1, unsatisfactory performance, to 9, outstanding performance). Rating forms were distributed to raters after the completion of the PACU rotation. Raters included PACU nurses, secretarial staff, nurse aides, and medical technicians. Residents were aware of the 360-degree assessment and participated voluntarily. The multiple raters' evaluations were then compared with those of the traditional faculty. Intraclass correlation coefficients were calculated to measure the reliability of ratings within each category of raters by the Pearson correlation coefficient. Four hundred twenty-nine rating forms were returned during the study period. Fifteen residents were evaluated. The response rate was 88%. Residents were ranked highest on availability and lowest on management skill. The average rating across all areas was high (8.23). The average mean rating across all items from PACU nurses was higher (8.34) than from secretarial staff (7.99, P > .08). The highest ranked resident ranked high with all raters and the lowest ranked was low with most raters. The intraclass coefficients of correlations were 0.8719, 0.7860, 0.8268, and 0.8575. This type of resident assessment tool may be useful for PACU rotations. It appears to correlate with traditional faculty ratings, is feasible to use, and provides formative feedback to residents regarding their professionalism and interpersonal and communication skills.

  3. 360-degree 3D transvaginal ultrasound system for high-dose-rate interstitial gynaecological brachytherapy needle guidance (United States)

    Rodgers, Jessica R.; Surry, Kathleen; D'Souza, David; Leung, Eric; Fenster, Aaron


    Treatment for gynaecological cancers often includes brachytherapy; in particular, in high-dose-rate (HDR) interstitial brachytherapy, hollow needles are inserted into the tumour and surrounding area through a template in order to deliver the radiation dose. Currently, there is no standard modality for visualizing needles intra-operatively, despite the need for precise needle placement in order to deliver the optimal dose and avoid nearby organs, including the bladder and rectum. While three-dimensional (3D) transrectal ultrasound (TRUS) imaging has been proposed for 3D intra-operative needle guidance, anterior needles tend to be obscured by shadowing created by the template's vaginal cylinder. We have developed a 360-degree 3D transvaginal ultrasound (TVUS) system that uses a conventional two-dimensional side-fire TRUS probe rotated inside a hollow vaginal cylinder made from a sonolucent plastic (TPX). The system was validated using grid and sphere phantoms in order to test the geometric accuracy of the distance and volumetric measurements in the reconstructed image. To test the potential for visualizing needles, an agar phantom mimicking the geometry of the female pelvis was used. Needles were inserted into the phantom and then imaged using the 3D TVUS system. The needle trajectories and tip positions in the 3D TVUS scan were compared to their expected values and the needle tracks visualized in magnetic resonance images. Based on this initial study, 360-degree 3D TVUS imaging through a sonolucent vaginal cylinder is a feasible technique for intra-operatively visualizing needles during HDR interstitial gynaecological brachytherapy.

  4. Abrams's stable equivalence for graph braid groups

    CERN Document Server

    Prue, Paul


    In his PhD thesis, Abrams proved that for a natural number n and a graph G with at least n vertices, the n-strand configuration space of G deformation retracts to a compact subspace, the discretized n-strand configuration space, provided G satisfies the following two conditions. First, each path between distinct essential vertices (vertices of valence not equal to 2) is of length at least n+1 edges, and second, each path from a vertex to itself which is not nullhomotopic is of length at least n+1 edges. We prove the first condition can be relaxed to require only that each path between distinct essential vertices is of length at least n-1. In doing so, we fill a minor hole in Abrams's original proof. We show the improved result is optimal; that is, the conditions are in fact necessary for the existence of the indicated deformation retraction.

  5. Qualification Lab Testing on M1 Abrams Engine Oil Filters (United States)



  6. Develop Efficient Leak Proof M1 Abrams Plenum Seal (United States)


    UNCLASSIFIED UNCLASSIFIED ER-GLSV11389-001.docx Develop Efficient Leak Proof M1 Abrams Plenum Seal SBIR Phase I: Topic A13-061...Leak Proof M1 Abrams Plenum Seal Christian Muehfeld Steve Pennala Great Lakes Sound & Vibration, Inc. 47140 North Main Street Houghton, MI 49931 ER...061. The purpose of this report is to show the feasibility of developing an efficient, leak proof plenum seal for the M1 Abrams . It also shows the

  7. [Evaluation of reconstruction arc in myocardial SPECT imaging using a cardiac phantom--comparison between 360 degrees and 180 degrees arcs]. (United States)

    Kashikura, K; Kashikura, A; Terada, S; Kobayashi, H


    In order to investigate the effect of reconstruction arc on myocardial SPECT images, a series of phantom studies was performed with and without plastic chambers simulating perfusion defects using 201Tl and 99mTc. Coefficient of variations (CV) of the counts among the ROIs and defect contrast were evaluated in 360 degrees and 180 degrees images reconstructed from the same 360 degrees projection data. Reconstruction processes were identical for all images. In the absence of defects, the CV of the counts were approximately the same in 360 degrees and 180 degrees images. The CV of the counts in the 360 degrees 201Tl image, among 4 defects located on the anterior, lateral, inferoposterior, and septal walls, was superior to those in the 180 degrees images. In contrast, in the 99mTc images, the CV of the counts among the 4 defects in the 180 degrees image was superior to those of the 360 degrees image. The defect contrast was changed both by the location of the defect and by the reconstruction arc (201Tl, 99mTc). The defect contrast of the 180 degrees images, in both 201Tl and 99mTc experiments, was closer to the true contrast value as calculated by the count ratio between myocardium and defect. Although the defect contrast in the anterior, lateral and septal walls was more emphasized in the 180 degrees images, the defect contrast in the inferoposterior wall was less emphasized in the 180 degrees images compared to the 360 degrees (201Tl, 99mTc).

  8. TM at Folsom Prison: A Critique of Abrams and Siegel. (United States)

    Allen, Don; And Others


    An article by Abrams and Siegel, "The Transcendental Meditation Program at Folsom State Prison: A Cross Validation Study" is examined and found wanting in several respects. A second article responds that the findings of the Abrams-Siegel study resulted from the Rosenthal effect, experimental bias, and other effects. (LPG)

  9. Comprehensive Forced Response Analysis of J2X Turbine Bladed-Discs with 360 Degree Variation in CFD Loading (United States)

    Elrod, David; Christensen, Eric; Brown, Andrew


    The temporal frequency content of the dynamic pressure predicted by a 360 degree computational fluid dynamics (CFD) analysis of a turbine flow field provides indicators of forcing function excitation frequencies (e.g., multiples of blade pass frequency) for turbine components. For the Pratt and Whitney Rocketdyne J-2X engine turbopumps, Campbell diagrams generated using these forcing function frequencies and the results of NASTRAN modal analyses show a number of components with modes in the engine operating range. As a consequence, forced response and static analyses are required for the prediction of combined stress, high cycle fatigue safety factors (HCFSF). Cyclically symmetric structural models have been used to analyze turbine vane and blade rows, not only in modal analyses, but also in forced response and static analyses. Due to the tortuous flow pattern in the turbine, dynamic pressure loading is not cyclically symmetric. Furthermore, CFD analyses predict dynamic pressure waves caused by adjacent and non-adjacent blade/vane rows upstream and downstream of the row analyzed. A MATLAB script has been written to calculate displacements due to the complex cyclically asymmetric dynamic pressure components predicted by CFD analysis, for all grids in a blade/vane row, at a chosen turbopump running speed. The MATLAB displacements are then read into NASTRAN, and dynamic stresses are calculated, including an adjustment for possible mistuning. In a cyclically symmetric NASTRAN static analysis, static stresses due to centrifugal, thermal, and pressure loading at the mode running speed are calculated. MATLAB is used to generate the HCFSF at each grid in the blade/vane row. When compared to an approach assuming cyclic symmetry in the dynamic flow field, the current approach provides better assurance that the worst case safety factor has been identified. An extended example for a J-2X turbopump component is provided.

  10. Eesti tankivalikud: Abrams või Leopard 2 / Holger Roonemaa

    Index Scriptorium Estoniae

    Roonemaa, Holger


    Ametlikku otsust kaitseväele tankide ostmiseks veel ei ole, kuid kui Eesti kaitsevägi asub tanke ostma, siis tõenäoliselt hakatakse valima Leopard 2 ja Abrams vahel. Tankidega seotud kuludest ja olukorrast Norras

  11. Comparison of posterior capsule opacification at 360-degree square edge hydrophilic and sharp edge hydrophobic acrylic intraocular lens in diabetic patients

    Institute of Scientific and Technical Information of China (English)

    Ling; Bai; Jin; Zhang; Ling; Chen; Ting; Ma; Hou-Cheng; Liang


    ·AIM: To compare posterior capsule opacification(PCO)degree and visual functions after phacoemulsification in eyes implanted with 360-degree square edge hydrophilic acrylic intraocular lens(IOL)(570C C-flex, Rayner) and sharp edge hydrophobic acrylic IOL(Sensar AR40 e,AMO) in diabetic patients.· METHODS: Sixty diabetic patients underwent uneventful phacoemulsification and randomly implanted one of the two IOLs. The PCO value was measured by retroillumination photographs and Evaluation of Posterior Capsule Opacification(EPCO) 2000 image-analysis software at 1, 6, 12, and 24 mo after surgery. Visual acuity, and contrast sensitivity in photopic and mesopic conditions were also examined at each follow up time point. The incidence of eye that required Nd:YAG laser posterior capsulotomy were also compared.·RESULTS: There was not any statistically significant difference in PCO scores between Rayner C-flex 570 C group and Sensar AR40 e group at each follow up time point. Visual acuity, Nd:YAG capsulotomy incidence and contrast sensitivity also had no significant difference during the 24 mo follow-up.·CONCLUSION: For diabetic patients, Rayner 570 C Cflex and Sensar AR40 e IOLs are same effective for prevent PCO. The 360-degree square edge design maybe is a good alternative technique to improve PCO prevention.

  12. A 360-degree Data Governance Strategy for Medical Institutions%面向医疗机构的360°数据管控策略研究

    Institute of Scientific and Technical Information of China (English)

    王斌; 李忠


    Objective To provide a 360-degree data governance strategy for medical institutions in order to further improve the medical information quality and access efficiency. Methods With the enterprise medical data warehouse as the basis platform, the accountability recognition mechanism of medical institutions internal data was perfected, and the active data governance was exerted with a 360-degree all-round view under data stewardship in the following areas: data quality, data integration, data security and privacy, metadata management, and master data management. Results Through this kind of full -spectrum data governance, medical institutions could greatly improve their information access efficiency and data quality, and finally step into a new elaborately-managed operational mode. Conclnsion In virtue of clear data monitoring, standardized workflow, and definitive data stewardship, this 360-degree data governance can help effectively and efficiently solve the data integration and data quality problems massively confronting medical institutions. [Chinese Medical Equipment Journal,2012,33(6) :45-48]%目的:为了进一步提高医疗数据质量和信息获取效率,提出一种面向医疗机构的360°全方位数据管控机制.方法:以企业级数据仓库为基础平台,完善医疗机构内部数据认责机制,并通过对数据质量、数据集成、数据安全与隐私、元数据管理、数据标准等细分层面的主动管控,以360°全方位视角完成整个医疗机构的数据管控.结果:通过这种全方位数据管控,医疗机构可以有效提升数据准确率和利用率,通过有效反馈,不断完善,最终步入精细化运营阶段.结论:360°全方位医疗数据管控平台通过监控数据流向、规范工作流程、明确数据职责,可以有效地解决异构系统集成问题,大幅度提升数据质量和数据访问效率.

  13. Display implementation in the Abrams Main Battle Tank (United States)

    Wyrembelski, Rick J.


    This paper provides an overview of a major weapon system, the Abrams Main Battle Tank, as it relates to Flat Panel Display (FPD) technology. The Abrams pioneered FPD implementation in military ground vehicles in response to the integration of embedded computer systems into the tank. This major weapon system is poised to field the latest upgrade, the System Enhancement Package (SEP), with 2nd generation Flat Panel Displays. This has been accomplished by managing requirements, dynamic communication with FPD research and development programs, and aggressively leveraging those programs. The tank has progressed from implementing available FPDs to influencing the enabling of FPD technology. The experience gained offers valuable insight to following ground vehicle systems and to those diligently working to fully enable this critical technology.

  14. Preparation of Approximate Eigenvector by Unitary Operations on Eigenstate in Abrams-Lloyd Quantum Algorithm

    Directory of Open Access Journals (Sweden)

    Latha S. Warrier


    were obtained sequentially. Another use of the first eigenvector from Abrams-Lloyd algorithm is preparing a state that is the uniform superposition of all the eigenvectors. This is possible by nonorthogonalizing the first eigenvector in all dimensions and then applying the Abrams-Lloyd algorithm steps stopping short of the last measurement.

  15. Thermoelectric waste heat recovery from an M1 Abrams tank (United States)

    Stokes, C. David; Thomas, Peter M.; Baldasaro, Nicholas G.; Mantini, Michael J.; Venkatasubramanian, Rama; Barton, Michael D.; Cardine, Christopher V.; Walker, Grayson W.


    The addition of advanced sensors, targeting systems and electronic countermeasures to military vehicles has created a strategic need for additional electric power. By incorporating a thermoelectric (TE) waste heat recovery system to convert available exhaust heat to electricity, increased electric power needs can be met without reducing the energy efficiency of the vehicle. This approach allows existing vehicles to be upgraded without requiring a complete re-design of the engine and powertrain to support the integration of advanced electronic sensors and systems that keep the performance at the state of the art level. RTI has partnered with General Dynamics Land Systems and Creare, Inc. under an Army Research Lab program to develop a thermoelectric exhaust waste heat recovery system for the M1 Abrams tank. We have designed a reduced-scale system that was retrofitted to the tank and generated 80W of electric power on the vehicle operating on a test track by capturing a portion of the exhaust heat from the Honeywell/Lycoming AGT-1500 gas turbine engine.

  16. Application of 360-degree Appraisal Method in Ouptatient Nursing Performance Appraisal%基于360°考核法的军人门诊护士绩效考核管理

    Institute of Scientific and Technical Information of China (English)

    韩炜; 张小青; 张娜; 张媛


    Objective To explore the application effect of 360 -degree performance appraisal method in the work of the excellent care services in military clinic. Methods According to delphi specialist consultant and the management concept of 360 - degree performance appraisal, based on the differences of service object, service content, nursing position, nursing quality, nursing safety, a all - round and multi - dimensional performance evaluation indicators system were constructed, with which to check and evaluate nursing quality of the staff weekly, and then to evaluate the performance according to the department responsibility, management of responsibility group, department affaire work, the labor discipline monthly, as well as the summary scores were calculated. The nurse own the highest scores will be named as the first nurse in the performance appraisal and to be rewarded. Results & Conclusion 360 - degree performance appraisal method can mobilize the enthusiasm of nursing staff fully to improve the quality continuously. At the same time, it can also provide a basis for nursing staffs selection, promotion, reward and punishment。%目的 探讨360°绩效考核法在军人门诊开展优护理服务中的应用效果.方法 运用delphi专家咨询法及360°绩效考核的管理理念,根据科室服务对象、服务项目、护理岗位、护理质量、护理安全等的不同,构建全方位、多维度绩效考核指标及评价体系,每周不定期检查考评护理人员的工作质量,每月结合科室责任项目管理、责任小组管理、科务工作、劳动纪律的评价,通过量化汇总评分,评出绩效考核第一护理人员,并给予奖励.结果和结论 360°绩效考核方法充分调动了护理人员工作积极性,达到了促进护理工作质量的持续改进的目的,也为护理人员的评选、晋升、奖惩提供依据.

  17. 基于灰色系统理论的军队油料节约人员360度绩效评估%360-Degree Performance Evaluation of Military POL-saving Personnel Based on Grey System Theory

    Institute of Scientific and Technical Information of China (English)

    刘训标; 郭继坤; 戴俊; 王红旗


    In this paper,based on 360-degree performance evaluation,the performance evaluation indicators system of mili-tary POL-saving personnel is established with 4 level indicators and 16 second indicators from morality,abilities,performance and achievements. The weights of each layer’s indicators are determined based on the theory of AHP. The principle and method of grey system theory are applied to establish a multilevel grey evaluation model,and 360-degree performance evaluation of 5 common POL-saving persons in a certain POL-saving group is obtained. The findings indicate that the method can not only systematically synthe-size“the poor information”provided by each appraiser,but also work out the grey class and order of priority of the persons evaluat-ed. The grey class and corresponding appraisal weight of the indexes can also be obtained,so the goal of 360-degree performance feedback can be achieved well. The study provides a new perspective and method for the performance management of POL-saving personnel.%基于360度绩效评估理论,从德、能、勤、绩4个方面构建了包含4个1级指标和16个2级指标的军队油料节约人员360度绩效评估指标体系。利用层次分析法确定了各评估指标的权重,运用灰色系统理论的原理和方法,构建了多层次灰色评估模型,并对某油料节约小组5位油料节约人员进行了360度绩效评估。案例应用表明,此方法具有系统综合各层评估者提供的“贫信息”的优点,不仅能得出被评估者的灰类及优劣顺序,而且得到了各指标所属灰类和具体的灰色评价权值,使360度绩效较好地实现了绩效反馈的目的。该研究为军队油料节约人员绩效管理工作提供了新的思路和方法。

  18. Immersive Photography Renders 360 degree Views (United States)


    An SBIR contract through Langley Research Center helped Interactive Pictures Corporation, of Knoxville, Tennessee, create an innovative imaging technology. This technology is a video imaging process that allows real-time control of live video data and can provide users with interactive, panoramic 360 views. The camera system can see in multiple directions, provide up to four simultaneous views, each with its own tilt, rotation, and magnification, yet it has no moving parts, is noiseless, and can respond faster than the human eye. In addition, it eliminates the distortion caused by a fisheye lens, and provides a clear, flat view of each perspective.

  19. 360 Derece Performans Değerlendirme ve Geri Bildirim: Bir Üniversite Mediko-Sosyal Merkezi Birim Amirlerinin Yönetsel Yetkinliklerinin Değerlendirilmesi Üzerine Pilot Uygulama Örneği(360 Degree Performance Appraisal And Feedback: “A Pilot Study Illustration in Appraising the Managerial Skills of Supervisors Working in Health Care Centre of a University”

    Directory of Open Access Journals (Sweden)

    Selin Metin CAMGÖZ


    Full Text Available In this study, “360 Degree Performance Appraisal” which is one of the most current and controversial issues of human resource practices is extensively examined and supported with an empirical research. The study contains 2 parts. After explaining the necessity and the general utilities of the classical performance appraisal system, the first theoretical part shifts to the emergence of 360 degree performance appraisal, discusses its distinctive benefits over the classical appraisal system and focuses its attention to the raters (superiors, subordinates, peers, self involving in the 360 degree performance appraisal.The second empirical part illustrates the development of 360 degree performance appraisal system as well as its application and sample feedback reports for feedback purposes in order to appraise the managerial skills of supervisors working in Health Care Centre of a public university.

  20. 关节镜下360°松解治疗原发性冻结肩%Arthroscopic 360 degree release for the treatment of primary frozen shoulder

    Institute of Scientific and Technical Information of China (English)

    袁锋; 蔡俊丰; 马敏; 罗树林; 周炜; 卢亮宇; 潘张毅; 曾文; 尹峰


    cupping,the general course will last for 2-3 years,and the curative effect in many patients is poor.In this study,patients with primary frozen shoulder were treated through arthroscopy release by 360 degree,course of the disease was shorten by this operation,and the effect of treatment was improved.From October 2010 to October 2012,a total of 86 patients with primary frozen shoulder were hospitalized to received arthroscopic arthrolysis by 360 degree,the curative effect was satisfactory,and it is reported as follows.Methods General information:A total of 86 patients with primary frozen shoulder were admitted into specialist department of joint and bone disease of Shanghai East Hospital affiliated to Tongji University from (October 2010 to October 2012,there were 36 males and 50 females,aged from 45 to 78 years,the mean age was (60.5±8.0)years,left shoulder involved in 42 cases and right shoulder involved in 44 cases,the course duration was 3-24 months,all patients suffered from shoulder joint pain without incentives and limited activity of the shoulder,the symptoms persisted and worsen.)The effect of conservative treatment was not obvious.Score of the shoulder joint pain based on visual analogue scale (VAS)was (8.3 ± 1.1 ),and score of shoulder joint according to the Constant Score was (55.9 ± 5.5).Preoperative magnetic resonance imaging was performed,and no rotator cuff or labral tear damage was observed. Operation method: All patients were under general anesthesia during operation,with lateral decubitus position.Shoulder was tracted with 45°of abduction and 1 5° of anterior flexion.Firstly,we adopted the posterior approach,inspected the glenohumeral joint,the glenoidal labrum and the joint capsule under arthroscopy,no rotator cuff or labrum injury were seen. During operation we observed synovial hyperplasia and congestion and the joint space was narrow.We failed to reach the front of the glenohumeral joint through the posterior approach in 8 patients,so we adopted

  1. A Systematic Review of the Reliability, Validity and Feasibility of 360-degree Evaluation Physician Assessment%医师考核360度评价法的可靠性、有效性及可行性的系统研究

    Institute of Scientific and Technical Information of China (English)

    张健; 吴华章


    目的:研究医师绩效考核360度评价法的可靠性、普遍性、有效性及可行性。方法检索EMBASE、MEDLINE及PubMed数据库中经同行评议过的、1975~2013年12月发表的英文文献。检索标准:使用360度评价法工具考核医师绩效;有关360度评价法可靠性、概化系数和建构效度的报道证据;文献中涉及收集反馈数据过程可行性的信息。结果(1)入选43篇同行评议研究,其中家庭医学、儿科与内科专业各5篇,外科4篇,妇产科3篇,精神病学3篇,麻醉2篇以及急救医学、实验病理、组织病理、放射学、运动医学和康复专业各1篇。(2)38篇(91%)研究由医生的医疗同行完成360度评价法调查问卷;32篇(74%)研究由医生的非医生同事完成,23篇(53%)研究由患者和(或)患者家属完成,22篇(51%)研究由自我评价完成。(3)自我评价项目4~57条,医疗同行评价项目4~60条,同事评价项目4~60条,患者问卷评价项目3~49条。(4)26篇(62%)报道了360度评价法工具的可靠性,360度评价法工具的α应该≥0.90,医疗同行0.89~0.99,同事0.91~0.96,患者0.93~0.99。17篇(40%)描述了普遍性系数,医疗同行评价工具的普遍性系数为0.61~0.88,同事评价工具为0.56~0.87,患者评价工具为0.65~0.85。(5)至少由8名医疗同行、8名同事和25名患者评价才能达到可靠性系数≥0.90,普遍性系数≥0.80的要求。结论应用360度评价法考核医师绩效具有较高的可靠性、有效性及可行性。%ObjectiveTo investigate the reliability, validity, and feasibility of 360-degree evaluation for the assessment of physicians.Methods We searched the EMBASE, MEDLINE and PubMed databases for peer-reviewed, English-language articles published from 1975 to December 2013. Studies inclusion criteria was following: used 360-degree evaluation instruments to assess

  2. Inventing the Right to Know: Herbert Abrams's Efforts to Democratize Access to Workplace Health Hazard Information in the 1950s. (United States)

    Derickson, Alan


    In the 1980s, the right-to-know movement won American workers unprecedented access to information about the health hazards they faced on the job. The precursors and origins of these initiatives to extend workplace democracy remain quite obscure. This study brings to light the efforts of one of the early proponents of wider dissemination of information related to hazard recognition and control. Through his work as a state public health official and as an advisor to organized labor in the 1950s, Herbert Abrams was a pioneer in advocating not only broader sharing of knowledge but also more expansive rights of workers and their organizations to act on that knowledge.

  3. Performans Değerlendirme Yöntemi Olarak 360 Derece Geribildirim Sürecinin Orta Kademe Yöneticilerin İş Başarısına Olan Etkisi: 5 Yıldızlı Otel İşletmelerinde Bir Uygulama = The Effect of 360 Degree Feedback Performance Evaluation Process on the Achievement of Middle-Level Managers: an Application in 5-Star Accommodation Establishments

    Directory of Open Access Journals (Sweden)

    Derya KARA


    Full Text Available This study sets out to reveal the effect of 360 degree feedback performance evaluation process on the achievement of middle-level managers. To serve this purpose, 5-star establishments, in total 182, with tourism certification and operating in 5 major provinces (Antalya, İstanbul, Muğla, Ankara, İzmir made up the application field of the study. The study aims to determine to what extent the 360 degree feedback performance evaluation process differentiate compared to traditional performance evaluation processes within the context of job achievement. The results of the study suggest that 7 dimensions (leadership, task performance, adaptation to change, communication, human relations, creating output, employee training and development were found to be more effective in the job performances of the middle-level managers.

  4. Contrast-induced nephropathy: The wheel has turned 360 degrees

    DEFF Research Database (Denmark)

    Thomsen, H.S.; Morcos, S.K.; Barrett, B.J.


    the incidence of CIN have been highly contentious. They include choice of contrast, pharmacologic manipulation, and volume expansion. The pathophysiology of this complication remains uncertain, but reduction in renal blood flow and direct toxicity of tubular cells has been implicated. More than 900 publications...... under the heading CIN have been published during the last 5 years. Fewer than 5% of these publications are randomized prospective controlled studies. In spite of the large number of reports on CIN, very little has been changed. The use of the smallest possible dose of low- or iso-osmolar contrast media...

  5. A 360-degree overview of paediatric NAFLD: recent insights. (United States)

    Nobili, Valerio; Svegliati-Baroni, Gianluca; Alisi, Anna; Miele, Luca; Valenti, Luca; Vajro, Pietro


    Non-alcoholic fatty liver disease (NAFLD) is a multi-faceted disorder, which ranges from simple steatosis to non-alcoholic steatohepatitis (NASH) with/without fibrosis. The effects of specific risk factors, such as obesity and sedentary lifestyle, on predisposing genetic settings eventually lead to the development of NAFLD in children. The complex interplay between genes and environment in NAFLD pathogenesis is sustained by multiple mechanisms that involve liver crosstalk with other organs and tissues, especially gut and adipose tissue. Unfortunately, natural history of paediatric NAFLD is lacking, and the etiopathogenesis is still in the process of being defined. Potential early predictors and suitable non-invasive diagnostic tools can be discovered based on the pathogenetic mechanisms and histological patterns. This will also help design novel treatments and a comprehensive and successful management strategy for patients. In this review, we discuss the recent advances made in genetics, etiopathogenesis, diagnosis, and therapeutic management of NAFLD, focusing especially on the obesity-related steatotic liver condition. Copyright © 2013 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.

  6. Application of 360-degree evaluation in evaluating professional ethics and communication skills of intern doctors%360度评价法在实习医师职业道德和沟通能力评价中应用的研究

    Institute of Scientific and Technical Information of China (English)

    任汝静; 王刚; 许恩; 吴平; 傅毅; 陈生弟


    目的:采用360度评价量表评估实习医师的培训效果,为制定针对性的培养策略提供依据。方法以某临床医学院129名实习医师为研究对象,采用美国华盛顿大学医学教育中心编制的职业道德和交流沟通能力的360度评价量表对研究对象分别从带教教师、同行实习医师、护士、患者、管理人员及实习医师本人6个角度依次按职业道德、人际关系和交流沟通能力进行评分。以Cronbach'sα系数评价量表信度,用单因素方差分析比较不同评价者之间的评分,以t检验和Mann-Whitney非参数检验比较男女间、五年制和八年制班级间得分,P0.05)。结论360度评价量表具有较好的可靠性,值得进一步推广研究;实习医师的职业道德和交流沟通能力总体较好。%Objective To evaluate the effectiveness of intern doctor training by 360 degree evaluation scale and to provide references for formulating targeted training plan. Methods A 360-degree evaluation scale with 6 subscales(Attendings, Peers, Nurse, Patients, Directors and Students) was employed to measure the status quo of medical education , represented by professional ethics and communication skills, among 129 intern doctors in medical clinical college. Cronbach's alpha was used to evaluate the reliability of the scale,one-way ANOVA was used to compare the difference of score among different scorers,and t test and Mann-Whitney test were employed to compare scores be-tween male group and female group, 5-year class and 8-year class (The significance level was set at P0.05). Conclusions 360 degree evaluation scale has reasonable reliability and it can provide valuable references for future similar survey in China. Meanwhile, intern doctors exhibit rela-tively good performances in professional ethics and communication ability & interpersonal relationship in the present study.

  7. Optical embedded dust sensor for engine protection and early warning on M1 Abrams/ground combat vehicles (United States)

    Lin, Hai; Waldherr, Gregor A.; Burch, Timothy


    The Dual Optical Embedded Dust Sensor (DOEDS) is designed for the sensitive, accurate detection of particles for preventive health monitoring of the AGT1500 engine and M1 Abrams/Ground Combat Vehicles (GCVs). DOEDS is a real-time sensor that uses an innovative combination of optical particle sensing technologies and mechanical packaging in a rugged, compact and non-intrusive optical design. The optical sensor, implementing both a single particle sensor and a mass sensor, can operate in harsh environments (up to 400°F) to meet the particle size, size distribution, mass concentration, and response time criteria. The sensor may be flush- or inline-mounted in multiple engine locations and environments.

  8. M1A2 SEP Tank Embedded Training Technology (United States)


    Single Board Computer DC-DC Conv Video Board VS-LRU (CITV) B ac kp la ne Video Conv Power J1 J2...J3 J4 28 VDC RS-232 Headless Control Sys Monitor, Kybd, Mouse Hard Drive Video Board Video Board Single Board Computer DC-DC Conv Video Board Video... Board Computer DC-DC Conv Sound Board Network Hub ET-LRU B ac kp la ne Network Hub J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 RS-232 Headless

  9. 艾布拉姆斯在国内的传播与接受%Domestic Spreading and Receiving of Abrams ’ Artistic Theories

    Institute of Scientific and Technical Information of China (English)



    上个世纪80年代中期,艾布拉姆斯的著作开始传入中国,其艺术理论“四要素”框架在国内学术界产生了广泛的影响。随着艾氏学术著作不断地译介,其批评理论也逐渐为学界所了解。因此,对艾布拉姆斯在国内近三十年的传播与接受进行关照就显得十分必要。这不仅有利于推进国内学者对艾氏展开研究,而且对国内文艺理论的建设也起到积极的作用。%Since the mid-80s of the 20th century, Abrams’ theories began to spread to China .His artis-tic theoretical framework of “four elements” has had a great impact in the domestic academic circles .After that, with his academic works being continuously translated , Abrams’ literary thoughts have been gradually known by academic circles .This paper reviews nearly thirty years of spreading and receiving of Abrams ’ in our country , and makes a brief comment on the researches of his artistic theories .

  10. Effects of Sensing Capability on Ground Platform Survivability During Ground Forces Maneuver Operations (United States)


    Bradley M6 Linebacker and M1A2 Abrams Main Battle Tank, and the speed of UAV, were identified to be the three most significant factors affecting platform...Bradley M6 Linebacker and M1A2 Abrams Main Battle Tank, and the speed of UAV, were identified to be the three most significant factors affecting platform...9 1. M1A2 Abrams Main Battle Tank

  11. 360-Degree Visual Detection and Target Tracking on an Autonomous Surface Vehicle (United States)

    Wolf, Michael T; Assad, Christopher; Kuwata, Yoshiaki; Howard, Andrew; Aghazarian, Hrand; Zhu, David; Lu, Thomas; Trebi-Ollennu, Ashitey; Huntsberger, Terry


    This paper describes perception and planning systems of an autonomous sea surface vehicle (ASV) whose goal is to detect and track other vessels at medium to long ranges and execute responses to determine whether the vessel is adversarial. The Jet Propulsion Laboratory (JPL) has developed a tightly integrated system called CARACaS (Control Architecture for Robotic Agent Command and Sensing) that blends the sensing, planning, and behavior autonomy necessary for such missions. Two patrol scenarios are addressed here: one in which the ASV patrols a large harbor region and checks for vessels near a fixed asset on each pass and one in which the ASV circles a fixed asset and intercepts approaching vessels. This paper focuses on the ASV's central perception and situation awareness system, dubbed Surface Autonomous Visual Analysis and Tracking (SAVAnT), which receives images from an omnidirectional camera head, identifies objects of interest in these images, and probabilistically tracks the objects' presence over time, even as they may exist outside of the vehicle's sensor range. The integrated CARACaS/SAVAnT system has been implemented on U.S. Navy experimental ASVs and tested in on-water field demonstrations.

  12. 360-Degree Assessments: Are They the Right Tool for the U.S. Military? (United States)


    favoritism, diversity management, organizational processes, intention to stay, and job burnout (Ripple, undated). Focus groups are also conducted as...Breaking the Bathsheba Syndrome : Building a Performance Evaluation System That Promotes Mission Command, Fort Leavenworth, Kan.: U.S. Army Command and

  13. Use of 360-degree assessment of residents in internal medicine in a Danish setting

    DEFF Research Database (Denmark)

    Allerup, Peter


    . The assessors spent 14.5 minutes (median) to fill in the forms. RESULTS: Of the 22 chosen objectives, 15 could reliably be assessed by doctors, 7 by nurses and none by secretaries. CONCLUSIONS: The method was practical in busy clinical departments and was well accepted by the assessors. Reliability...

  14. Navigated Pattern Laser System versus Single-Spot Laser System for Postoperative 360-Degree Laser Retinopexy

    Directory of Open Access Journals (Sweden)

    Alexei N. Kulikov


    Full Text Available Purpose. To compare three 360°-laser retinopexy (LRP approaches (using navigated pattern laser system, single-spot slit-lamp (SL laser delivery, and single-spot indirect ophthalmoscope (IO laser delivery in regard to procedure duration, procedural pain score, technical difficulties, and the ability to achieve surgical goals. Material and Methods. Eighty-six rhegmatogenous retinal detachment patients (86 eyes were included in this prospective randomized study. The mean procedural time, procedural pain score (using 4-point Verbal Rating Scale, number of laser burns, and achievement of the surgical goals were compared between three groups (pattern LRP (Navilas® laser system, 36 patients; SL-LRP, 28 patients; and IO-LRP, 22 patients. Results. In the pattern LRP group, the amount of time needed for LRP and pain level were statistically significantly lower, whereas the number of applied laser burns was higher compared to those in the SL-LRP group and in the IO-LRP group. In the pattern LRP, SL-LRP, and IO-LRP groups, surgical goals were fully achieved in 28 (77.8%, 17 (60.7%, and 13 patients (59.1%, respectively (p>0.05. Conclusion. The navigated pattern approach allows improving the treatment time and pain in postoperative 360° LRP. Moreover, 360° pattern LRP is at least as effective in achieving the surgical goal as the conventional (slit-lamp or indirect ophthalmoscope approaches with a single-spot laser.

  15. Conventional and 360 degree electron tomography of a micro-crystalline silicon solar cell

    DEFF Research Database (Denmark)

    Duchamp, Martial; Ramar, Amuthan; Kovács, András


    Bright-field (BF) and annular dark-field (ADF) electron tomography in the transmission electron microscope (TEM) are used to characterize elongated porous regions or cracks (simply referred to as cracks thereafter) in micro-crystalline silicon (μc-Si:H) solar cell. The limitations of inferring...

  16. 360-Degree Visual Detection and Target Tracking on an Autonomous Surface Vehicle (United States)


    resource use–based planning into the HA behavior. An active sensor approach to hazard detection using a laser range finder for navigation was reported by...sensing for hazard detection /avoidance and situational awareness; behaviors for obeying the rules of the road during inter- actions with other

  17. Harnessing the Transformative Tsunami: Fleet-wide 360-degree Feedback Revisited (United States)


    out poor officers, and making good ones even better is the lynchpin to maintaining this unrivaled fighting force for years to come. A series of... sexism , and alcohol consumption. Since the life of a sailor was harsh, men were permitted liberties unacceptable by modern workplace standards

  18. Wideband 360 degrees microwave photonic phase shifter based on slow light in semiconductor optical amplifiers

    DEFF Research Database (Denmark)

    Xue, Weiqi; Sales, Salvador; Capmany, Jose;


    oscillations, enhanced by optical filtering, in combination with a regeneration stage realized by four-wave mixing effects. This combination provides scalability: three hybrid stages are demonstrated but the technology allows an all-integrated device. The microwave operation frequency limitations...

  19. Accounting for Human Neurocognitive Function in the Design and Evaluation of 360 Degree Situational Awareness Display Systems (United States)


    Cohen , J., Soja, N. N., and Longridge, T., "Simulator Platform Motion-The Need Revisited", The International Journal of Aviation Psychology 8(3), 293...Psychology and Behavior 7(4-5), 247-256-(2004). [27] Nagel , S. K., Carl, C., Kringe, T., Märtin, R., and König, P., "Beyond sensory substitution

  20. Limited access surgery for 360 degrees in-situ fusion in a dysraphic patient with high-grade spondylolisthesis. (United States)

    König, M A; Boszczyk, B M


    Progressive high-grade spondylolisthesis can lead to spinal imbalance. High-grade spondylolisthesis is often reduced and fused in unbalanced pelvises, whereas in-situ fusion is used more often in balanced patients. The surgical goal is to recreate or maintain sagittal balance but if anatomical reduction is necessary, the risk of nerval damage with nerve root disruption in worst cases is increased. Spinal dysraphism like spina bifida or tethered cord syndrome make it very difficult to achieve reduction and posterior fusion due to altered anatomy putting the focus on anterior column support. Intensive neural structure manipulation should be avoided to reduce neurological complications and re-tethering in these cases. A 26-year-old patient with a history of diastematomyelia, occult spina bifida and tethered cord syndrome presented with new onset of severe low back pain, and bilateral L5/S1 sciatica after a fall. The X-ray demonstrated a grade III spondylolisthesis with spina bifida and the MRI scan revealed bilateral severely narrowed exit foramina L5 due to the listhesis. Because she was well balanced sagittally, the decision for in-situ fusion was made to minimise the risk of neurological disturbance through reduction. Anterior fusion was favoured to minimise manipulation of the dysraphic neural structures. Fusion was achieved via isolated access to the L4/L5 disc space. A L5 transvertebral hollow modular anchorage (HMA) screw was passed into the sacrum from the L4/L5 disc space and interbody fusion of L4/L5 was performed with a cage. The construct was augmented with pedicle screw fixation L4-S1 via a less invasive bilateral muscle split for better anterior biomechanical support. The postoperative course was uneventful and fusion was CT confirmed at the 6-month follow-up. At the last follow-up, she worked full time, was completely pain free and not limited in her free-time activities. The simultaneous presence of high-grade spondylolisthesis and spinal dysraphism make it very difficult to find a decisive treatment plan because both posterior and anterior treatment strategies have advantages and disadvantages in these challenging cases. The described technique combines several surgical options to achieve 360° fusion with limited access, reducing the risk of neurological sequelae.

  1. Accounting for human neurocognitive function in the design and evaluation of 360 degree situational awareness display systems (United States)

    Metcalfe, Jason S.; Mikulski, Thomas; Dittman, Scott


    The current state and trajectory of development for display technologies supporting information acquisition, analysis and dissemination lends a broad informational infrastructure to operators of complex systems. The amount of information available threatens to outstrip the perceptual-cognitive capacities of operators, thus limiting their ability to effectively interact with targeted technologies. Therefore, a critical step in designing complex display systems is to find an appropriate match between capabilities, operational needs, and human ability to utilize complex information. The present work examines a set of evaluation parameters that were developed to facilitate the design of systems to support a specific military need; that is, the capacity to support the achievement and maintenance of real-time 360° situational awareness (SA) across a range of complex military environments. The focal point of this evaluation is on the reciprocity native to advanced engineering and human factors practices, with a specific emphasis on aligning the operator-systemenvironment fit. That is, the objective is to assess parameters for evaluation of 360° SA display systems that are suitable for military operations in tactical platforms across a broad range of current and potential operational environments. The approach is centered on five "families" of parameters, including vehicle sensors, data transmission, in-vehicle displays, intelligent automation, and neuroergonomic considerations. Parameters are examined under the assumption that displays designed to conform to natural neurocognitive processing will enhance and stabilize Soldier-system performance and, ultimately, unleash the human's potential to actively achieve and maintain the awareness necessary to enhance lethality and survivability within modern and future operational contexts.

  2. Disease management 360 degrees: a scorecard approach to evaluating TRICARE's programs for asthma, congestive heart failure, and diabetes. (United States)

    Yang, Wenya; Dall, Timothy M; Zhang, Yiduo; Hogan, Paul F; Arday, David R; Gantt, Cynthia J


    To assess the effect of TRICARE's asthma, congestive heart failure, and diabetes disease management programs using a scorecard approach. EVALUATION MEASURES: Patient healthcare utilization, financial, clinical, and humanistic outcomes. Absolute measures were translated into effect size and incorporated into a scorecard. Actual outcomes for program participants were compared with outcomes predicted in the absence of disease management. The predictive equations were established from regression models based on historical control groups (n = 39,217). Z scores were calculated for the humanistic measures obtained through a mailed survey. Administrative records containing medical claims, patient demographics and characteristics, and program participation status were linked using an encrypted patient identifier (n = 57,489). The study time frame is 1 year prior to program inception through 2 years afterward (October 2005-September 2008). A historical control group was identified with the baseline year starting October 2003 and a 1-year follow-up period starting October 2004. A survey was administered to a subset of participants 6 months after baseline assessment (39% response rate). Within the observation window--24 months for asthma and congestive heart failure, and 15 months for the diabetes program--we observed modest reductions in hospital days and healthcare cost for all 3 programs and reductions in emergency visits for 2 programs. Most clinical outcomes moved in the direction anticipated. The scorecard provided a useful tool to track performance of 3 regional contractors for each of 3 diseases and over time.

  3. The M1 Abrams Today and Tomorrow (United States)


    Somalia hobbled mission efforts, requiring United Nations armor (Pakistani forces) be called upon to mount a rescue effort of surrounded Army Rangers...overrun such a force would prove very difficult, as Iraqi forces in Baghdad discovered in 2003.14 Army Chief of Staff Gen. Raymond Odierno has...Jane’s, 2010), 177. 20. James Logan , former U.S. Army armor officer, with exten- sive experience in analyzing armored vehicles and programs at the

  4. Sõjameheks saadakse pidevalt õppides / Martin Abram

    Index Scriptorium Estoniae

    Abram, Martin


    Kõrgema Sõjakooli kadett huvist sõjaasjanduse vastu, kaitseliidu kogemusest, kaitseväeteenistusest, ohvitserikutsest. Vt. samas: Kaitseväe ühendatud õppeasutused alustasid kümnendat õppeaastat

  5. Analisis dan Perancangan Aplikasi Basis Data Penilaian Kinerja Karyawan menggunakan Metode 360-Degree Feedback Berbasis Web pada Pt Ifs Solutions Indonesia

    Directory of Open Access Journals (Sweden)

    Choirul Huda


    Full Text Available The purpose of this study is to analyze and design a database application for the assessment of employee performance to suit the needs of PT IFS Solutions Indonesia. This system creates and provides information quickly and accurately where the data is well integrated, so it can help the company to do an analysis and consideration for decision-making. The research methodology used includes library research, interviews with the HR company to obtain information about the system to be designed, and database design by creating conceptual models, logical models and physical models. After that, application design includes designing the DFD, menu structure, STD, and user interface. The result achieved is the creation of a web-based database application that can help decision-makers to support employees with good, more accurate, easier and quickly available when needed. The database application made can help companies manage and make decisions as well as produce better work.

  6. The effect of environment on the creep deformation of ultra-high purity nickel-chromium-iron alloys at 360 degrees Celcius (United States)

    Paraventi, Denise Jean


    Steam generators in pressurized water nuclear power plants have experienced significant problems with intergranular stress corrosion cracking (IGSCC) on the inner diameter of steam generator tubing for over 25 years. In the course of research to understand IGSCC, it has been shown that creep deformation may play a significant role in the cracking of commercial Alloy 600 (Ni-16Cr-9Fe-0.03C). The primary water environment can cause decreases in creep resistance (i.e., faster creep rates, shorter time to failure, and higher creep strains). During corrosion under the conditions of interest, both hydrogen reduction and metal dissolution occur. One or both may contribute to the enhancement of creep. The purpose of this work was to isolate the mechanism by which the water environment causes the creep deformation to increase. Activation area and activation enthalpy for glide were measured in argon and primary water on high purity Ni-16Cr-9Fe alloys. The results indicated that the activation area was reduced by primary water, consistent with a hydrogen enhanced plasticity mechanism for enhanced creep. The stress dependence of creep was also examined in argon and primary water. The results indicated that the internal stress of the alloy is reduced by the primary water environment. Lower internal stress is consistent with both a hydrogen model as well as a vacancy-aided climb model for enhanced creep. To isolate the effect of hydrogen on the creep of the alloy, experiments were conducted in a dissociated hydrogen environment. The results indicated that hydrogen would only increase the steady state creep rate if present before loading of the samples. However, if the sample was already in steady state creep and hydrogen introduced, a transient in the creep strain was observed. The creep rate returned to the original steady state rate in a short time. The results indicate that while hydrogen does affect the steady state creep to an extent, hydrogen cannot completely account for the increase in creep rate observed in primary water. Also, the presence of the aggressive environment before loading appears to be required to increase the creep rate, indicating that the effect of environment may be significant in the primary creep regime.

  7. Abrams Primary School passive solar design. Phase 1. Final report

    Energy Technology Data Exchange (ETDEWEB)



    The general project documentation and the design process documentation for the project are presented. The following are appended: analysis of thermal transfer and internal heat contributions to the heating and cooling loads for a typical four-classroom teaching module using bin-chart temperature data, trace simulation for the original building design, Teanet simulation of original building design for the month of January 1959, Teanet simulation of Solar 2 for the month of January 1959, incremental solar cost assessment, and diffuse radiation incident on the monitor glass. (MHR)

  8. Anglogovorjashtshaja Jevropa / Abram de Swaan ; Irina Sashtshenkova - tõlkija

    Index Scriptorium Estoniae

    Swaan, Abram de


    Kuigi Euroopa Liit võitleb keelelise mitmekesisuse säilimise eest ühenduses, toimub liikmesriikides stiihiliselt üleminek inglise keele kasutamisele. Amsterdami Ülikooli professori arvates aitab inglise keele kasutamine ühenduse suhtluskeelena suurendada integratsiooni Euroopas, kuid hoiduda tuleb ameerika ja inglise kultuuri pealetungist

  9. Navy MANTECH Program Fiscal Year 2002 Annual Report (United States)


    components. Army MANTECH (Army ARL) $424,600 Austempered ductile iron ausforming of various components on M1A2 Abrams vehicle. NASA $80, change bulb. Implementation of digital photogrammetry to improve process control of plate cutting at Bath Iron Works. Typically

  10. USA tankid jõudsid Tapale

    Index Scriptorium Estoniae


    Tapale saabus poolsada USA sõjamasinat, nende seas neli tanki Abrams M1A2 ja 15 jalaväe lahingumasinat Bradley. Tehnikat hakkab kasutama USA maaväe 4. jalaväediviisi 68. soomusrügemendi esimese pataljoni C-kompanii

  11. Ameeriklased tulid Tapale tankidega

    Index Scriptorium Estoniae


    Tapale saabus poolsada USA sõjamasinat, nende seas neli tanki Abrams M1A2 ja 15 jalaväe lahingumasinat Bradley. Tehnikat hakkab kasutama USA maaväe 4. jalaväediviisi 68. soomusrügemendi esimese pataljoni C-kompanii

  12. Fratricide and a Correlation to ABCS Training Levels (United States)


    the M1A2 Abrams Tank and the M2A2 Bradley Fighting Vehicle, and non-stabilized platforms like the M1114 HMMWV, Special Forces non-standard vehicles...Leavenworth, Kans.: Center for Army Lessons Learned, US Army Combined Arms Command, April 1992. Usry, Jr., Capt. Floyd J. "Stop Killing Each Other

  13. Ameeriklased tulid Tapale tankidega

    Index Scriptorium Estoniae


    Tapale saabus poolsada USA sõjamasinat, nende seas neli tanki Abrams M1A2 ja 15 jalaväe lahingumasinat Bradley. Tehnikat hakkab kasutama USA maaväe 4. jalaväediviisi 68. soomusrügemendi esimese pataljoni C-kompanii

  14. USA tankid jõudsid Tapale

    Index Scriptorium Estoniae


    Tapale saabus poolsada USA sõjamasinat, nende seas neli tanki Abrams M1A2 ja 15 jalaväe lahingumasinat Bradley. Tehnikat hakkab kasutama USA maaväe 4. jalaväediviisi 68. soomusrügemendi esimese pataljoni C-kompanii

  15. Study on the Introduction 360 Degree Assessment Mode to Non--profit Organization Performance Appraisal%非营利组织导入360度绩效考核模式探析

    Institute of Scientific and Technical Information of China (English)




  16. 正确运用360度考核工具改善护理组织绩效%Correctly use 360 degree feedback tool to improve achievement of nursing organization

    Institute of Scientific and Technical Information of China (English)

    杨辉; 王爱琴



  17. Expert's comment concerning Grand Rounds case entitled "Limited access surgery for 360 degrees in situ fusion in a dysraphic patient with high grade spondylolisthesis" (by M. A. König and B. M. Boszczyk). (United States)

    Lamartina, Claudio


    The case of a 26 year-old woman with high grade spondylolisthesis, history of diastematomyelia and tethered cord, with acute onset of back pain and bilateral sciatica after a fall. This comment will focus on three issues: indication for surgery, indication for reduction and levels to be included in fusion. Surgery is indicated in this case for intermittent urinary incontinence and saddle anesthesia, and failure of conservative treatment to control pain. Other important determinant of surgical indication is risk of progression, depending rather on the degree of dysplasia as classified by Marchetti-Bartolozzi than on the degree of slip as classified by Meyerding. High dysplastic olisthesis is identified by excessive pelvic retroversion. Reduction is indicated in patients with high torque through L5-S1. L5 severity index (SI) correlates with the magnitud of torque through L5-S1. Similarly, the decision to include L4 in fusion can be made based on the value of SI for L4.

  18. On Culture: Know the Enemy and Know Thyself - Giap, Abrams, and Victory (United States)


    Chaplain. Faith connected Abrams’s professional career with his personal life as a husband and father. From his faith, he espoused integrity as the...citizens like to have a lot of personal choices on a daily basis to display one’s individualism and uniqueness. Zafar stated that the concept of having a...22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to

  19. Ethics and desire: Il responsabile delle risorse umane by Abram Yehoshua

    Directory of Open Access Journals (Sweden)

    Emanuele Zinato


    Full Text Available This work offers a Freudian lecture of Yehoshua’s novel, based on the contrast between ethical project and dynamics of desire. The protagonist is a human resources manager from Jerusalem going to Russia with the corpse of an employee dead in an attack; he has a metamorphosis that seems on one hand functional to the construction of a moral apologue: as in Lévinas’ late thinking, so in Yehoshua the responsibility for the Other is entrenched in our subjective being. The Manager arbitrary inverts his route and brings back to Jerusalem the victim’s coffin, mother and child because this allegoric City belongs to everyone and its sharing is the only achievable reparation. What stays in the background in the ‘ethical’ interpretation of the text is the role of desire. The beginning of the inquiry on Julia’s corpse causes in the text the emerging of symmetrization (as Matte Blanco would say. Julia’s body, desirable althought (or because closed in a coffin, causes the breaking in a dimension that, potentially, don’t know the distinction between things but, conversely, assimilate and confuse them in a unique reality.

  20. Demonstration of the Early-on Manpower Requirements Estimation Methodology: M1 Abrams Main Battle Tank (United States)


    Exploration Phase estimate" of the Ml manpower require- ments could have been made using ENREM . BI. ORGANIZATION OF THIS REPORT Section 11 of this report...considered in Section 1I. We begin the application of ENREM to the Ml in Section III by reviewing the development of the mission need statement that...the largest roles. But, for future applications of ENREM to Army weapon systems, particularly those in the Concept Exploration Phase, it is plausible

  1. SIMNET M1 Abrams Main Battle Tank Simulation: Software Description and Documentation (United States)


    messages onto the shared memory queues. The controls software is organized into a finite state machine model , where the three states are based on the...several turret subsystems am initialized. The reasoning behind the finite state machine model Ls that the various controls in the tank- may be

  2. Facing Uncertainty: The Role of the M1 Abrams Tank in the U.S. Army of 2015-2025 (United States)


    constraints and the requirement for expeditionary maneuver, the U.S. Army is under pressure to demonstrate the need for its main battle tank . The good shape, and these are additional tanks that we don’t need.”24 The article reflects the pressures to make decisions not based on threat

  3. The Armys M-1 Abrams, M-2/M-3 Bradley, and M-1126 Stryker: Background and Issues for Congress (United States)


    entered service with the Army in 1980; the M-2/M-3 Bradley Fighting Vehicle in 1981; and the Stryker Combat Vehicle in 2001. Under current Army... Under current Army modernization plans, the Army envisions all three vehicles in service with Active and National Guard forces beyond FY2028...Information from this section, unless otherwise noted, is taken from Jane’s Armour and Artillery, 2011-2012, pp.177- 185, and the author’s personal

  4. Analysis Of The Effects Of Marine Corps M1A1 Abram’s Tank Age On Operational Availability (United States)


    is International Standards Organization ( ISO ) 9001 :2008 certified and has received the prestigious Shingo bronze award in 2007 for operational...item designator number IROAN inspect and repair only as necessary ISO International Standards Organization KPP key performance parameter...United States Navy Air Systems Command NIIN national item identification number NSN national stock number NTC National Training Center O&S

  5. Cirugía de 360º en el tratamiento de la espondilolistesis lumbosacra de alto grado: técnica por única vía posterior Cirurgia de 360 graus no tratamento da espondilolistese lombossacral de alto grau: técnica por via posterior única 360 degrees surgery in the treatment of high-grade lumbosacral spondylolisthesis: surgical technique only by posterior approach

    Directory of Open Access Journals (Sweden)

    Salvador Mattar Díaz


    Full Text Available OBJETIVO: El tratamiento de las espondilolistesis lumbosacras de altos grados (IV y espondiloptosis incluye la reducción del desplazamiento si es posible, descompresión, y la fijación y artrodesis del segmento afectado. Esta patología provoca un grado de incapacidad grave en los pacientes así como deformidad en su postura lumbosacra, llevándolos a adoptar una marcha anodina, acompañada de retracción de isquiotibiales de forma crónica. Con el fin de ofrecer una mejoría clínica, reducir el tiempo quirúrgico y la tasa de morbilidad, se propone esta técnica quirúrgica que permite realizar todo por única vía posterior, como una alternativa en el tratamiento quirúrgico de estos pacientes. MÉTODOS: Los autores describen una técnica para descomprimir y fijar la columna lumbosacra, realizando una instrumentación transpedicular en L4 y S1, discectomía más TLIF (Caja intersomática para fusión lumbar en L4-L5, laminectomía niveles L4-L5, L5-S1, S1-S2, artrodesis postero-anterior de S1 a L5 tunelizando a través de ambas vértebras y colocando injerto fibular (peroné. Los autores revisaron, retrospectivamente, 9 pacientes intervenidos con esta técnica, entre los años 2000 y 2010. A todos se les evaluó y controló durante 12 meses, en promedio, posteriores a su intervención quirúrgica. RESULTADOS: Los síntomas mecánicos y radiculares mejoraron en el seguimiento a corto y largo plazo. Los estudios radiológicos demostraron adecuada fusión ósea en todos los pacientes. No se observaron fallas relacionadas con la instrumentación. CONCLUSIONES: Los autores afirman que esta técnica es segura y eficiente por vía posterior para lograr la descompresión y la fijación in situ sin corrección sagital. El uso de esta técnica evita el uso de los abordajes por vía anterior o combinados, y disminuye el porcentaje de sangramiento, la tasa de morbilidad y los altos costos.OBJETIVO: O tratamento da espondilolistese lombossacral de alto grau (grau IV e espondiloptose inclui a redução do deslocamento, se possível, descompressão e fixação e artrodese do segmento afetado. Essa doença causa nível grave de incapacidade e deformidade postural na região lombossacral, levando os pacientes a adotar marcha anódina, acompanhada por retração crônica dos músculos isquiotibiais. Esta técnica realizada por acesso unicamente posterior visa proporcionar a melhora clínica, reduzir o tempo cirúrgico e a morbidade. MÉTODOS: Os autores descrevem uma técnica para descomprimir e fixar a coluna lombossacral por instrumentação transpedicular em L4 e S1, discectomia mais TLIF (artrodese transforaminal intersomática em L4-L5, laminectomia nos níveis L4-L5, L5-S1, S1-S2, fusão póstero-anterior S1-L5 para tunelização através de ambos os corpos vertebrais e enxerto ósseo de fíbula. Os autores revisaram retrospectivamente nove pacientes submetidos a essa técnica entre 2000 e 2010. Todos os pacientes foram avaliados e acompanhados por 12 meses, em média, após a cirurgia. RESULTADOS: Os sintomas mecânicos e radiculares melhoraram no acompanhamento a curto e longo prazo. Estudos radiológicos mostraram fusão óssea adequada em todos os pacientes. Não houve falhas relacionadas com a instrumentação. CONCLUSÕES: Os autores afirmam que esta técnica é segura e eficiente para realizar descompressão posterior e fixação in situ sem correção sagital. A utilização desta técnica evita o acesso por via anterior ou combinado e reduz a hemorragia, a morbidade e os custos elevados.OBJECTIVE: The treatment of high-grade lumbosacral spondylolisthesis (grade IV and spondyloptosis includes the reduction of the displacement if possible, decompression, fixation and arthodesis of the affected level. This disease causes severe level of disability and a postural lumbosacral deformity, leading the patients to assume anodyne gait with a chronic contraction of the hamstrings. This technique performed solely by posterior approach aims to provide clinical improvement, reduce surgical time and morbidity. METHODS: The authors describe a technique to decompress and fix the lumbosacral spine by trans pedicular instrumentation in L4 and S1, discectomy and TLIF (Transforaminal Lumbar Interbody Fusion in L4-L5, laminectomy at levels L4-L5, L5-S1, S1-S2, posterior-anterior fusion from S1 to L5 for tunneling through both vertebral bodies and a fibular bone graft.The authors retrospectively reviewed nine patients who underwent this technique between 2000 and 2010. All patients were assessed and followed for 12 months on average after surgery. RESULTS: The mechanical and radicular symptoms improved in the follow-up period in the short and long term. Radiological studies showed adequate bone fusion in all patients. There were no instrumentation-related failures. CONCLUSIONS: The authors claim that this technique is safe and effective for decompression and posterior fixation in situ without sagittal correction. This technique prevents access by the anterior or combined approaches and reduce bleeding, morbidity and high costs.

  6. 约飞(Joffe,Abram Fetorovich,1880-1960)俄国物理学家(Physicist,Russia)

    Institute of Scientific and Technical Information of China (English)



  7. Development of an Item Unique Identification Strategy for the Legacy Components of the US Marine Corps M1A1 Abrams Tank (United States)


    reform and the Chief Financial Officers Act. Public Budgeting and Finance, 12(4), 75-86. Retrieved April 1, 2008, from EBSCO Host database. Jones...PAHDD $12,804.00 6 ADAPTER AND SHAFT A 3040011528805 PADDD $3,344.00 7 ADAPTER,SPLINE 3040014251531 PAOOO $49.70 8 ADAPTOR, HOST 7010013028669 PAFDD

  8. New Abrams under Construction%美国计划研制M1A3"艾布拉姆斯"主战坦克

    Institute of Scientific and Technical Information of China (English)


    @@ 伊拉克战场上的教训促使美国陆军对其装备的M1系列"艾布拉姆斯"主战坦克进行改进,他们计划建造一种更坚固,技术含量更高的新型"艾布拉姆斯"主战坦克--M1A3.

  9. 德勒兹的"块茎说"对艾布拉姆斯的"镜与灯"的挑战%Deleuze's "Rhizome" Against Abrams's "Mirror" and "Lamp"

    Institute of Scientific and Technical Information of China (English)




  10. Aerial Photography and Imagery, Ortho-Corrected, 1997 Ortho Imagery collected by Abrams Aerial Survey, Published in 1997, 1:2400 (1in=200ft) scale, CITY OF PORTAGE. (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Orthoimagery information as of...

  11. Diagnostic and predictive value of voiding diary data versus prostate volume, maximal free urinary flow rate, and Abrams-Griffiths number in men with lower urinary tract symptoms suggestive of benign prostatic hyperplasia

    NARCIS (Netherlands)

    van Venrooij, Ger E. P. M.; van Melick, Harm H. E.; Eckhardt, Mardy D.; Boon, Tom A.


    OBJECTIVES To investigate the information of voiding data in relation to symptoms and well-being in men with lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH) and to compare this information with that of prostate volume (Vprostate), maximal free urinary flow rate (

  12. 由艾布拉姆斯的四要素引发对艺术媒介的理论探讨%Theoretical Discussions on Artistic Media Ignited by Abrams' Four Factors

    Institute of Scientific and Technical Information of China (English)




  13. 华兹华斯和艾布拉姆斯对柏拉图诗学主张的挑战%Wordsworth and Abrams' Challenges to Plato's Poetic Theory

    Institute of Scientific and Technical Information of China (English)



  14. 多元文化语境中身份的危机与认同——J·J·艾布拉姆斯的电影世界%The Film World of Jeffrey Jacob Abrams

    Institute of Scientific and Technical Information of China (English)

    范志忠; 顾晓燕



  15. Linear-drive cryocoolers for the Department of Defense standard advanced dewar assembly (SADA) (United States)

    Tate, Garin S.


    The Standard Advanced Dewar Assembly (SADA) is the critical module in the Department of Defense (DoD) standardization of scanning second-generation thermal imaging systems. The DoD has established a family of SADAs to fulfill a range of performance requirements for various platforms. The SADA consists of the Infrared Focal Plane Array (IRFPA), Dewar, Command & Control Electronics (C&CE), and the cryogenic cooler, and is used in platforms such as the Apache helicopter, the M1A2 Abrams main battle tank, the M2 Bradley Infantry Fighting Vehicle, and the Javelin Command Launch Unit (CLU). In support of the family of SADAs, the DoD defined a complementary family of tactical linear drive cryocoolers. The Stirling cycle linear drive cryocoolers are utilized to cool the Infrared Focal Plane Arrays (IRFPAs) in the SADAs. These coolers are required to have low input power, a quick cool-down time, low vibration output, low audible noise, and a higher reliability than currently fielded rotary coolers. These coolers must also operate in a military environment with its inherent high vibration level and temperature extremes. This paper will (1) outline the characteristics of each cryocooler, (2) present the status and results of qualification tests, (3) present the status of production efforts, and (4) present the status of efforts to increase linear drive cooler reliability.

  16. 360-gradersfeedback i speciallægeuddannelsen

    DEFF Research Database (Denmark)

    Holm, Ellen; Holm, Kirsten; Sørensen, Jette Led


    In 360-degree feedback medical colleagues and collaborators give a trainee feedback by answering a questionnaire on behaviour of the trainee. The questionnaire may contain questions answered on a scale or/and they may contain open questions. The result from 360-degree feedback is used for formative...

  17. Multi source feedback based performance appraisal system using Fuzzy logic decision support system

    CERN Document Server

    Meenakshi, G


    In Multi-Source Feedback or 360 Degree Feedback, data on the performance of an individual are collected systematically from a number of stakeholders and are used for improving performance. The 360-Degree Feedback approach provides a consistent management philosophy meeting the criterion outlined previously. The 360-degree feedback appraisal process describes a human resource methodology that is frequently used for both employee appraisal and employee development. Used in employee performance appraisals, the 360-degree feedback methodology is differentiated from traditional, top-down appraisal methods in which the supervisor responsible for the appraisal provides the majority of the data. Instead it seeks to use information gained from other sources to provide a fuller picture of employees' performances. Similarly, when this technique used in employee development it augments employees' perceptions of training needs with those of the people with whom they interact. The 360-degree feedback based appraisal is a c...

  18. Embedded battle command: a vehicle systems integrator's prospective (United States)

    Frey, Terry L.; Wyrembelski, Rick J.


    This paper provides an overview of a major weapon system, the Abrams Main Battle Tank, as it relates to the integration of EMbedded Battle Command and Control element is essential to the tanks future role in the Army as they focus more on increased organizational effectiveness and less on individual platforms. The Abrams is poised to field the Abrams System Enhancement Package with its 2nd generation of Command and Control.

  19. Multi source feedback based performance appraisal system using Fuzzy logic decision support system

    Directory of Open Access Journals (Sweden)



    Full Text Available In Multi-Source Feedback or 360 Degree Feedback, data on the performance of an individual are collected systematically from a number of stakeholders and are used for improving performance. The 360-Degree Feedback approach provides a consistent management philosophy meeting the criterion outlined previously. The 360-degree feedback appraisal process describes a human resource methodology that is frequently used for both employee appraisal and employee development. Used in employee performance appraisals, the 360-degree feedback methodology is differentiated from traditional, top-down appraisalmethods in which the supervisor responsible for the appraisal provides the majority of the data. Instead it seeks to use information gained from other sources to provide a fuller picture of employees’ performances. Similarly, when this technique used in employee development it augments employees’ perceptions of training needs with those of the people with whom they interact. The 360-degree feedback based appraisal is a comprehensive method where in the feedback about the employee comes from all the sources that come into contact with the employee on his/her job. The respondents for an employee can be her/his peers, managers, subordinates team members, customers, suppliers and vendors. Hence anyone who comes into contact with the employee, the 360 degree appraisal has four components that include self-appraisal, superior’s appraisal, subordinate’s appraisal student’s appraisal and peer’s appraisal .The proposed system is an attempt to implement the 360 degree feedback based appraisal system in academics especially engineering colleges.

  20. The Army’s Core Competencies (United States)


    Core Competence,” 49. 75 Francis Fukuyama and Abram N. Shulsky, "Military Organization in the Information Age: Lessons from the World of Business...Organizational Development Journal 25, no. 8 (2004): 622-645. Fukuyama , Francis , and Abram N. Shulsky. "Military Organization in the Information Age

  1. Interim Brigade Combat Team: Indirect distributive fires concepts

    National Research Council Canada - National Science Library

    Gerard M Acosta; Christopher Menton


      The expectation that the Interim Brigade Combat Team will fight in a non-linear environment has forced units to develop new tactics to incorporate indirect fires to deliver rounds in a 360-degree zone...


    The purpose of this test was to determine the maximum distance that intelligible speech can be projected, by the test items , throughout a 360 degree pattern in the presence of simulated battle noise of known intensity.

  3. Photonic radio-frequency phase shifter based on polarization interference. (United States)

    Chen, Han; Dong, Yi; He, Hao; Hu, Weisheng; Li, Lemin


    An rf photonic phase shifter based on polarization interference is presented, and the theoretical fundamentals of the design are explained. This phase shifter provides broad operational bandwidth and a full 360 degrees phase-shift tuning range with a single external electrical control. A prototype of the rf photonic phase shifter with a frequency of 26.75 GHz and 360 degrees tuning range is experimentally demonstrated.

  4. Physics and applications of slow and fast light in semiconductor optical waveguides

    DEFF Research Database (Denmark)

    Mørk, Jesper; Chen, Yaohui; Ek, Sara;

    We review the physics of slow and fast light based on coherent population oscillations in active semiconductor waveguides. Exploiting these effects, microwave phase shifters realizing 360 degree phase shift and operating at tens of GHz have been realized.......We review the physics of slow and fast light based on coherent population oscillations in active semiconductor waveguides. Exploiting these effects, microwave phase shifters realizing 360 degree phase shift and operating at tens of GHz have been realized....

  5. Constructing an Overpass for Literary Criticism:A Comparison of Abram's Analytic Scheme and Keesey's Conceptual Scheme in the Theory of Literary Criticism%建立文学批评的立交桥--西方艾氏与基氏文艺批评理论图之比较

    Institute of Scientific and Technical Information of China (English)




  6. A Case for Enlisted Unmanned Aerial System Operators (United States)


    Abrams main battle tank is a very good weapons system to compare to the primary Air Force UAS, the MQ-1 Predator. The M1A1/2 Abrams main battle tank...the case of close air support targets. Given that the Army has less than 5,000 Abrams tanks in its inventory, it could also adopt a policy that only...Air Command and Staff College, April 1984. Floyd D. Spence National Defense Authorization Act for FY2001. Public Law 106-398, Section 220. 114 Stat

  7. A Note on "Modules, Comodules, and Cotensor Products over Frobenius Algebras"

    Institute of Scientific and Technical Information of China (English)

    Xiaowu CHEN; Hualin HUANG; Yanhua WANG


    This is a note on Abrams' paper "Modules, Comodules, and Cotensor Products over Frobenius Algebras, Journal of Algebras" (1999). With the application of Frobenius coordinates developed recently by Kadison, one has a direct proof of Abrams' characterization for Frobenius algebras in terms of comultiplication (see L. Kadison (1999)). For any Frobenius algebra, by using the explicit comultiplication, the explicit correspondence between the category of modules and the category of comodules is obtained. Moreover,with this we give very simplified proofs and improve Abrams' results on the Hom functor description of cotensor functor.

  8. Rotary klubi premeeris Politsei- ja Piirivalveameti töötajaid

    Index Scriptorium Estoniae


    Tallinna Rotary klubi noorte politseinike ning parima koerajuhi ja teenistuskoera preemia võitnutest: Raili Pärn, Marit Abram, Valur Pajumäe koeraga Golttvizen Hof Dixon, Hendri Lilbok ja Martin Torim

  9. Ot Gannibala do "Russkogo bunta" / Tatjana Mühlbeier

    Index Scriptorium Estoniae

    Mühlbeier, Tatjana


    Eestis elanud legendaarsest A. Pushkini vaarisast Abram Hannibalist ja temaga seoses ka sama ajastut kujutavast vene režissööri Aleksandr Proshkini uuest ajaloolisest mängufilmist "Vene mäss" ("Russki bunt")


    Directory of Open Access Journals (Sweden)

    Rafael Rossi


    Full Text Available Por uma ampliação na análise da exclusão social .ABRAMS, Dominic; CRISTIAN, Julie; GORDON, David (orgs. Multidisciplinary handbook of Social Exclusion Research. Ed. John Wiley & Sons, Inglaterra. 2007

  11. Rotary klubi premeeris Politsei- ja Piirivalveameti töötajaid

    Index Scriptorium Estoniae


    Tallinna Rotary klubi noorte politseinike ning parima koerajuhi ja teenistuskoera preemia võitnutest: Raili Pärn, Marit Abram, Valur Pajumäe koeraga Golttvizen Hof Dixon, Hendri Lilbok ja Martin Torim

  12. Mechanisms of Cell Injury with Hepatotoxic Chemicals (United States)


    protective effect of mercaptopropionyl glycine, Biochem. Pharmacol., 26:31-35. Lau, S. S., G. D. Abrams , and V. G. Zannoni (1979), Severity of hepatic...Hepatic microsomal epoxida- tion of bromobenzene to phenols and its toxicological implica- tion, Tox. Appl. Pharmacol., 50:309-318. Lau, S. S., G. D. Abrams ... Floyd , P. R. McCay, E. r,. Janzen, and E. P. Davis (1978), Spin-trapping of the trichloromethyl radical produced during NADPH oxidation in the presence

  13. The Draft as a Deterrent Influence on U.S. Military Interventions (United States)


    figures such as Stokely Carmichael, Floyd McKissick, and Dr. Martin Luther King all opposed the Vietnam War and the drafting of young African Americans.52...consternation among the public and politicians than increased draft calls. As Chief of Staff of the Army, General Creighton Williams Abrams Jr. implemented...a force structure that would ensure the reserves would be included in any significant military operations. This Abrams Doctrine, some believed

  14. Considering a Cadre Augmented Army (United States)


    division equivalents (HDEs) of Abrams tanks in the first year of ____________ 101 Dewar et al (2000), p. 59 102 Dewar et al (2000), p. 61 -200- An...Reserves and the Abrams Doctrine: Unfulfilled Promise, Uncertain Future,” Heritage Foundation Lecture, April 18, 2005. Carey, Benedict, “Stress on Troops... Floyd H., The Standby Reserve Training Corps: An Alternative Mobilization Manpower Policy, Army War College, Carlisle Barracks, PA, 1985. Dupuy

  15. 360-gradersfeedback i speciallægeuddannelsen

    DEFF Research Database (Denmark)

    Holm, Ellen; Holm, Kirsten; Sørensen, Jette Led


    feedback and assessment. In order to secure reliability 8-15 respondents are needed. It is a matter of discussion whether the respondents should be chosen by the trainee or by a third part, and if respondents should be anonymous. The process includes a feedback session with a trained supervisor.......In 360-degree feedback medical colleagues and collaborators give a trainee feedback by answering a questionnaire on behaviour of the trainee. The questionnaire may contain questions answered on a scale or/and they may contain open questions. The result from 360-degree feedback is used for formative...

  16. Mosaic of Apollo 16 Descartes landing site taken from TV transmission (United States)


    A 360 degree field of view of the Apollo 16 Descartes landing site area composed of individual scenes taken from a color transmission made by the color RCA TV camera mounted on the Lunar Roving Vehicle. This panorama was made while the LRV was parked at the rim of Flag Crater (Station 1) during the first Apollo 16 lunar surface extravehicular activity (EVA-1) by Astronauts John W. Young and Charles M. Duke Jr. The overlay identifies the directions and the key lunar terrain features. The camera panned across the rear portion of the LRV in its 360 degree sweep.

  17. A three-dimensional, two-way, parabolic equation model for acoustic backscattering in a cylindrical coordinate system

    DEFF Research Database (Denmark)

    Zhu, Dong; Jensen, Leif Bjørnø


    -dimensional, single scattering approach. A periodic sidewall boundary condition is applied for computations in a 360-degree sector, while an approximate sidewall boundary condition is used for calculation in a sector less than 360 degrees. These two sidewall boundary conditions are verified by the numerical results....... The major drawback of using the cylindrical coordinate system, when the backscattering solution is valid within a limited area, is analyzed using a geometrical-optical interpretation. The model may be useful for studying three-dimensional backscattering phenomena comprising azimuthal diffraction effects...

  18. Cellular and Phenotypic Characterization of Canine Osteosarcoma Cell Lines

    Directory of Open Access Journals (Sweden)

    Marie E. Legare, Jamie Bush, Amanda K. Ashley, Taka Kato, William H. Hanneman


    Full Text Available Canine and human osteosarcoma (OSA have many similarities, with the majority of reported cases occurring in the appendicular skeleton, gender predominance noted, high rate of metastasis at the time of presentation, and a lack of known etiology for this devastating disease. Due to poor understanding of the molecular mechanisms underlying OSA, we have characterized seven different OSA canine cell lines: Abrams, D17, Grey, Hughes, Ingles, Jarques, and Marisco and compared them to U2, a human OSA cell line, for the following parameters: morphology, growth, contact inhibition, migrational tendencies, alkaline phosphatase staining, heterologous tumor growth, double-strand DNA breaks, and oxidative damage. All results demonstrated the positive characteristics of the Abrams cell line for use in future studies of OSA. Of particular interest, the robust growth of a subcutaneous tumor and rapid pulmonary metastasis of the Abrams cell line in an immunocompromised mouse shows incredible potential for the future use of Abrams as a canine OSA model. Further investigations utilizing a canine cell model of OSA, such as Abrams, will be invaluable to understanding the molecular events underlying OSA, pharmaceutical inhibition of metastasis, and eventual prevention of this devastating disease.

  19. Use of Development Centre Methodology to Focus Workforce Learning Strategies--Case Study: NSW Department of Community Services (United States)

    O'Toole, Sean; Ferres, Natalie


    This paper examines the use of development centre methodology to measure the gap in performance for fieldwork staff in a social welfare organisation. The process follows the construction of a capability framework, a set of work-based simulations for participants and the use of a 360-degree instrument. These processes are combined to measure and…

  20. At Face Value: Visual Antecedents of Impression Formation in Servicescapes

    NARCIS (Netherlands)

    Verhoeven, Joost W.M.; Rompay, van Thomas; Pruyn, Ad


    Consumers may base employee impressions on physical appearance and displayed personal objects. In a scenario experiment, using photos of a physician and a 360-degree panorama of his consultation room, we examined the effects of appearance and tangibles on impression formation. Study 1 shows that obs

  1. Think "360" (United States)

    Ramaswami, Rama


    No longer do universities have to decide between off-the-shelf and custom programs, or between standalone constituent relationship management (CRM) applications and ERP-integrated solutions. Instead, today's mantra is "360"--an up-close, 360-degree view of student interactions. Whether the processes and technologies employed to achieve…

  2. Design and performance evaluation of a hall effect magnetic compass for oceanographic and meteorological applications

    Digital Repository Service at National Institute of Oceanography (India)

    Joseph, A.; Desai, R.G.P.; Agarvadekar, Y.; Tengali, T.; Mishra, M.; Fadate, C.; Gomes, L.

    value of unity. The trend of hysteresis is found to be non-uniform, having minimal values (approximately equal to 0 degrees) in the vicinity of 0 degrees and 360 degrees, and maximum value (approximately equal to 13 degrees) in the vicinity of 65 degrees...

  3. The European Galactic Plane Surveys: EGAPS

    NARCIS (Netherlands)

    Groot, P.J.; Drew, J.; Greimel, R.; Gaensicke, B.; Knigge, C.; Irwin, M.; Mampaso, A.; Augusteijn, T.; Morales-Rueda, L.; Barlow, M.; Iphas, C.; Uvex, C.; Vphas, C.


    Introduction: The European Galactic Plane Surveys (EGAPS) will for the first time ever map the complete galactic plane (10x360 degrees) down to 21st magnitude in u', g', r', i' and H-alpha and partly in He I 5875. It will complete a database of ~1 billion objects. The aim of EGAPS is to study popula

  4. Robustness of features for automatic target discrimination in high resolution polarimetric SAR data.

    NARCIS (Netherlands)

    Broek, A.C. van den; Dekker, R.J.; Steeghs, P.


    We have studied the robustness of features against aspect variability for the purpose of target discrimination using polarimetric 35 Ghz ISAR data. Images at a resolution of 10 cm and 30 cm have been used for a complete aspect range of 360 degrees. The data covered four military targets: T72, ZSU23/

  5. Construct validity of multi-source performance ratings: an examination of the relationship of self-, supervisor-, and peer-ratings with cognitive and personality measures

    NARCIS (Netherlands)

    E.A.J. van Hooft (Edwin); M.R. Minne (Marjolein); H. van der Flier (Henk)


    textabstractAlthough more and more organizations prefer using multi-source performance ratings or 360-degree feedback over traditional performance appraisals, researchers have been rather skeptical regarding the reliability and validity of such ratings. The present study examined the validity of sel

  6. A Test-Retest Analysis of the Vanderbilt Assessment for Leadership in Education in the USA (United States)

    Minor, Elizabeth Covay; Porter, Andrew C.; Murphy, Joseph; Goldring, Ellen; Elliott, Stephen N.


    The Vanderbilt Assessment for Leadership in Education (VAL-ED) is a 360-degree learning-centered behaviors principal evaluation tool that includes ratings from the principal, supervisors, and teachers. The current study assesses the test-retest reliability of the VAL-ED for a sample of seven school districts as part of multiple validity and…

  7. Predicting extreme loads effects on wind turbines considering uncertainty in airfoil data

    DEFF Research Database (Denmark)

    Abdallah, Imad; Natarajan, Anand; Sørensen, John Dalsgaard


    The sources contributing to uncertainty in a wind turbine blade static airfoil data include wind tunnel testing, CFD calculations, 3D rotational corrections based on CFD or empirical models, surface roughness corrections, Reynolds number corrections, expansion to the full 360-degree angle of atta...

  8. Hybrid helical snakes and rotators for RHIC

    Energy Technology Data Exchange (ETDEWEB)

    Courant, E.D.


    The spin rotators and Siberian snakes presently envisaged for RHIC utilize helical dipole magnets. The snakes and the rotators each consist of four helices, each with a full twist (360{degrees}) of the field. Here we investigate an alternate layout, namely combinations of helical and pure bending magnet, and show that this may have advantages.

  9. Understanding the Effects of Leadership Development on the Creation of Organizational Culture Change: A Research Approach (United States)

    Ray, Keith W.; Goppelt, Joan


    Many leadership development programs are intended to improve individual leaders' skills and abilities to perform. Methods for measuring the effect of such programs range from simple metacognitive self-report surveys to 360-degree feedback, to instrumentation of psychological phenomena. However, the outcomes of some leadership development programs…

  10. Virtual Campus Tours. (United States)

    Jarrell, Andrea


    College campus "tours" offered online have evolved to include 360-degree views, live video, animation, talking tour guides, interactive maps with photographic links, and detailed information about buildings, departments, and programs. Proponents feel they should enhance, not replace, real tours. The synergy between the virtual tour and…

  11. Nod factor-induced root hair curling: continuous polar growth towards the point of nod factor application

    NARCIS (Netherlands)

    Esseling, J.J.; Lhuissier, F.G.P.; Emons, A.M.C.


    A critical step in establishing a successful nitrogen-fixing symbiosis between rhizobia and legume plants is the entrapment of the bacteria between root hair cell walls, usually in characteristic 180degrees to 360degrees curls, shepherd's crooks, which are formed by the host's root hairs. Purified b

  12. Implementing Virtual Reality Technology as an Effective Web Based Kiosk: Darulaman's Teacher Training College Tour (Ipda Vr Tour) (United States)

    Fadzil, Azman


    At present, the development of Virtual Reality (VR) technology is expanding due to the importance and needs to use the 3D elements and 360 degrees panorama in expressing a clearer picture to consumers in various fields such as education, military, medicine, entertainment and so on. The web based VR kiosk project in Darulaman's Teacher Training…

  13. Postfeedback Development Perceptions: Applying the Theory of Planned Behavior (United States)

    McCarthy, Alma; Garavan, Thomas


    The primary purpose of management development programs is performance improvement at an individual and organizational level. Performance improvement results from knowledge, skill, or ability enhancement. An important intervention in management development is the use of 360-degree or multisource feedback (MSF), which leads to more effective career…

  14. Silicon graphene waveguide tunable broadband microwave photonics phase shifter

    CERN Document Server

    Capmany, Jose; Muñoz, Pascual


    We propose the use of silicon graphene waveguides to implement a tunable broadband microwave photonics phase shifte based on integrated ring cavities. Numerical computation results show the feasibility for broadband operation over 40 GHz bandwidth and full 360 degree radiofrequency phase-shift with a modest voltage excursion of 0.12 volt.

  15. Student Self-Assessment and Multisource Feedback Assessment: Exploring Benefits, Limitations, and Remedies (United States)

    Taylor, Scott N.


    It has become common practice for management students to participate in some sort of self-assessment or multisource feedback assessment (MSF; also called 360-degree assessment or multirater assessment) during their management degree program. These assessments provide students invaluable feedback about themselves and assist students in their…

  16. Postfeedback Development Perceptions: Applying the Theory of Planned Behavior (United States)

    McCarthy, Alma; Garavan, Thomas


    The primary purpose of management development programs is performance improvement at an individual and organizational level. Performance improvement results from knowledge, skill, or ability enhancement. An important intervention in management development is the use of 360-degree or multisource feedback (MSF), which leads to more effective career…

  17. Predicting the Extreme Loads on a Wind Turbine Considering Uncertainty in Airfoil Data

    DEFF Research Database (Denmark)

    Abdallah, Imad; Natarajan, Anand; Sørensen, John Dalsgaard


    The sources contributing to uncertainty in a wind turbine blade static airfoil data include wind tunnel testing, CFD calculations, 3D rotational corrections based on CFD or emprircal models, surface roughness corrections, Reynolds number corrections, expansion to the full 360-degree angle of atta...

  18. 49 CFR 214.523 - Hi-rail vehicles. (United States)


    ..., DEPARTMENT OF TRANSPORTATION RAILROAD WORKPLACE SAFETY On-Track Roadway Maintenance Machines and Hi-Rail... designated by the employer. (c) A new hi-rail vehicle shall be equipped with: (1) An automatic change-of... change-of-direction alarms, backup alarms, and 360-degree intermittent warning lights or beacons shall be...

  19. FieldSAFE

    DEFF Research Database (Denmark)

    Kragh, Mikkel Fly; Christiansen, Peter; Laursen, Morten Stigaard


    camera, web camera, 360-degree camera, lidar, and radar, while precise localization is available from fused IMU and GNSS. Both static and moving obstacles are present including humans, mannequin dolls, rocks, barrels, buildings, vehicles, and vegetation. All obstacles have ground truth object labels...

  20. Schoolhouse Commercialism Leaves Policymakers Behind--The Sixteenth Annual Report on Schoolhouse Commercializing Trends: 2012-2013 (United States)

    Molnar, Alex; Boninger, Faith; Libby, Ken M.; Fogarty, Joseph


    There is a lot of money to be made from marketing to children. Children make spending decisions about their own cash, they influence their parents' spending decisions--and they have their whole purchasing lives ahead of them. For these reasons, marketers have, over the years, done everything they can to create a "360-degree" marketing…

  1. Peer Group Learning in Roche Pharma Development (United States)

    Boulden, George P.; De Laat, Richard


    Pharma Development has used action learning to help participants in their 360[degrees] feedback programme develop their leadership competencies. The article describes how the programme was designed, supported and run across four sites over a period of 2 years. The programme was systematically evaluated and found to be successful in meeting its…

  2. The Management Development Needs of Front-Line Managers: Voices from the Field. (United States)

    Longenecker, Clinton O.; Neubert, Mitchell


    A survey of 524 managers identified key practices to improve performance in a changing environment: clarifying roles, goals, and expectations; ongoing performance evaluation, feedback, and coaching; mentoring; challenging assignments; formal career planning; customer contact; cross-training; and 360-degree feedback. (Contains 31 references.) (SK)

  3. What is the Role of Heavy Armor in the Army of 2020? (United States)


    heavy machine gun. Taken from Federation of American Scientist Military Analysis Network, “M1 Abrams Main Battle Tank,” 8 Federation of American Scientist Military Analysis Network, “M2 Bradley Fighting Vehicle,” Operational Concept,” Army Magazine, June 2001, 12-19. Federation of American Scientist Military Analysis Network, “M1 Abrams Main Battle Tank

  4. The Army’s Future Combat Systems Program and Alternatives (United States)


    several different models of each type of vehi- cle—three models for the Abrams tank and for the Brad- ley fighting vehicle and two for the M113 and...Logistics, and Equipment Vehicle 90 Small Unmanned Ground Vehicle 81 Class I 54/108 Class II 36/36 Class III 12/48 Class IVa 2/8 Class IVb 8/ 38). According to the Army’s latest schedule, FCS vehicles could conceivably replace all of the Abrams tanks, Brad- ley fighting vehicles, self

  5. A CBO Study. The Army’s Future Combat Systems Program and Alternatives (United States)


    of vehi- cle—three models for the Abrams tank and for the Brad- ley fighting vehicle and two for the M113 and for the M109 fleets.16 Except in the...Small Unmanned Ground Vehicle 81 Class I 54/108 Class II 36/36 Class III 12/48 Class IVa 2/8 Class IVb 8/16 Unattended Ground Sensors 136 Non-Line-of...schedule, FCS vehicles could conceivably replace all of the Abrams tanks, Brad- ley fighting vehicles, self-propelled howitzers, and M113- based

  6. OurTube / David Talbot

    Index Scriptorium Estoniae

    Talbot, David


    USA California Ülikooli töötajate Abram Stern'i ja Michael Dale'i poolt 2005. a. algatatud USA kongressis peetud kõnede videoremiksidest ja nende poolt loodud veebisaidist Ka YouTube keskkonnast ja wikipedia katsetustest muuta oma keskkond multimeedialisemaks

  7. Causes of ambiguity aversion: Known versus unknown preferences

    NARCIS (Netherlands)

    P.P. Wakker (Peter); S.T. Trautmann (Stefan); F.M. Vieider (Ferdinand)


    textabstractAmbiguity aversion appears to have subtle psychological causes. Curley, Yates, and Abrams found that the fear of negative evaluation by others (FNE) increases ambiguity aversion. This paper introduces a design in which preferences can be private information of individuals, so that FNE

  8. Kids Speak: Preferred Parental Behavior at Youth Sport Events (United States)

    Omli, Jens; Wiese-Bjornstal, Diane M.


    News reports (e.g., Abrams, 2008) and scholarly research (e.g., Wiersma & Fifer, 2005) have indicated increasing concern that parent-spectator behavior at youth sport events may be problematic. Multiple strategies have been used to influence spectator behavior in youth sport contexts (e.g., "Silent Sundays"). However, it is unlikely that…

  9. Peeter I moorlasest vändatakse dokfilm / Tambet Kaugema

    Index Scriptorium Estoniae

    Kaugema, Tambet


    Eestis filmiti osa vene režissööri Konstantin Artjuhhovi sügisel valmivast dokumentaalfilmist "Minu Aafrika taeva all". Film jutustab Aleksandr Pushkini vaarisast Abram Hannibalist (1696-1781), kelle elust suur osa möödus Eestis

  10. Light Armored Reconnaissance: Misunderstood and Underemployed in Deep Operations (United States)


    attending The Basic School. There ru.·e three main ru.·mor platforms in the United States Mru .·ine Corps inventory. These are the Assault...Amphibious Vehicle (AAV), used pdmru.·ily to transport Mru .·ines from ship to shore; the MlAl Abrams, our main battle tank; and the Light Armored Vehicle

  11. "A Scrapbook of You + Me"

    DEFF Research Database (Denmark)

    Tanderup, Sara


    Artiklen læser det eksperimentende bog-værk S. (2013), af Doug Dorst og J.J. Abrams, som en refleksion over, og et udtryk for den trykte romans forandrede status i en digital tidsalder. Som en eksperimenterende roman med gulnede sider og håndskrift i marginen synes S. at reflektere en materiel ve...

  12. Assessing the Value of U.S. Army International Activities (United States)


    of U.S. Army International Activities Tajfel , Henri , Human Groups and Social Categories, Cambridge, U.K.: Cambridge University Press, 1981. Taw...more recent treatment, see Fearon (1997, pp. 68–90). 3 For general discussions, see Tajfel (1981, p. 36), Hogg and Abrams (1998, pp. 31–63), and Goffman

  13. TARDEC Technologies (Briefing Charts) (United States)


    Evaluation and Assessment (HEVEA) Efforts Supporting Current Force HMMWV Engine Optimization M88 Repower technical and testing support Turbine Engine...challenges Bradley and Abrams improved track Diesel Engine research Power and Energy SIL M88 Repower AAEF Efforts Supporting Future Force FCS Engine

  14. Russki Otello / Konstantin Artjuhhov ; interv. Nikolai Hrustaljov

    Index Scriptorium Estoniae

    Artjuhhov, Konstantin


    Vene režissöör Konstantin Artjuhhov vestleb Gatshina festivalil "Kirjandus ja kino" ajaloolise dokumentaalfilmist, lähemalt oma festivalil žürii eripreemia saanud filmist "Annibali imelik elu" ("Strannaja zhizn Annibala"). Film jutustab Aleksandr Pushkini vaarisast Abram Hannibalist (1696-1781), kelle elust suur osa möödus Eestis

  15. Disease: H00035 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available D:12633526 (marker) Riley RD, Burchill SA, Abrams KR, Heney D, Lambert PC, Jones DR, Sutton AJ, Young B, Wailoo AJ, Lewis IJ. A syste...matic review and evaluation of the use of tumour markers in paediatric oncology: Ew

  16. DMPD: Immunoreceptor-like signaling by beta 2 and beta 3 integrins. [Dynamic Macrophage Pathway CSML Database

    Lifescience Database Archive (English)

    Full Text Available 17913496 Immunoreceptor-like signaling by beta 2 and beta 3 integrins. Jakus Z, Fod...or S, Abram CL, Lowell CA, Mocsai A. Trends Cell Biol. 2007 Oct;17(10):493-501. (.png) (.svg) (.html) (.csml) Show Immunore...ceptor-like signaling by beta 2 and beta 3 integrins. PubmedID 17913496 Title Immunoreceptor-

  17. Russki Otello / Konstantin Artjuhhov ; interv. Nikolai Hrustaljov

    Index Scriptorium Estoniae

    Artjuhhov, Konstantin


    Vene režissöör Konstantin Artjuhhov vestleb Gatshina festivalil "Kirjandus ja kino" ajaloolise dokumentaalfilmist, lähemalt oma festivalil žürii eripreemia saanud filmist "Annibali imelik elu" ("Strannaja zhizn Annibala"). Film jutustab Aleksandr Pushkini vaarisast Abram Hannibalist (1696-1781), kelle elust suur osa möödus Eestis

  18. OurTube / David Talbot

    Index Scriptorium Estoniae

    Talbot, David


    USA California Ülikooli töötajate Abram Stern'i ja Michael Dale'i poolt 2005. a. algatatud USA kongressis peetud kõnede videoremiksidest ja nende poolt loodud veebisaidist Ka YouTube keskkonnast ja wikipedia katsetustest muuta oma keskkond multimeedialisemaks

  19. The Development of Literary Criticism: A Media Perspective. (United States)

    Larson, Arthur W.

    An analysis of the development of communication media can yield insight into the evolution of literary criticism. M. H. Abrams' division of the history of literary criticism into the imitative, the pragmatic, the expressive, and the objective provides a guideline in analyzing corresponding developments in communication media. The evolution of…

  20. Changes in Smoking Behavior Following a Strict No-Smoking Policy in U.S. Navy Recruit Training (United States)


    Pitchford, 1988; Biener, Abrams, Follick, & Dean, 1989; Becker, Conner, Waranch, Stillnan, Pennington, Lees, & Oski , 1989; Borland, Chapman, Owen...1-39). Heidelberg: Springer. Becker, D.M., Conner, H.F., Waranch, H.R., StiUMan, F., Pennington, L., Lees, P.S., & Oski , F. (1989). The Impact of a

  1. Cultivating Parental Involvement in Middle Schools: A Case Study (United States)

    Griffiths-Prince, Marcia


    Much evidence has suggested that parents and educators often have very different perceptions about the reasons for low student performance, the appropriate role for parents in the school, and the role of the principal (Abrams and Gibbs, 2000). Conflicting opinions about the parent role in the school often creates misunderstanding and frustration.…

  2. Army Communicator. Voice of the Signal Regiment. Volume 31 Number 4, Fall 2006 (United States)


    consists of radios mounted on mobile plat- forms such as the Abrams , Bradley, and Stryker vehicles. The Handheld, Manpack, and Small-form-factor PdM is...herald in the completion of the 4th Fires 50 Fall 2006 WO1 Paul Gonzalez and SPC Floyd Telford work in a Line of Sight transmission to improve the

  3. Army Communicator. Volume 32, Number 1, Winter 2007 (United States)


    vehicular configurations (HMMWV, Abrams , Bradley, etc.,), Class IV Unmanned Aerial Vehicles, and rotary-wing aircraft such as the Apache, Chinook, and...or to request a virtual extension campus, contact Floyd Orial, Lifelong Learning Center LWN-eU Signal Extension Campus Coordi- nator, (contractor

  4. The Literature of Aeronautics, Astronautics, and Air Power (United States)


    Angeles: Floyd Clymer Publications, 1925, reissued, 1974), also called The Blue Book of American Airmen; the Writers’ Pro- gram of the Work Projects...record of the American space effort in Eyewitness to Space: Paintings and Drawings Related to the Apollo Mission to the Moon (New York: Abrams , 1971

  5. The Visual Hemifield Asymmetry in the Spatial Blink during Singleton Search and Feature Search (United States)

    Burnham, Bryan R.; Rozell, Cassandra A.; Kasper, Alex; Bianco, Nicole E.; Delliturri, Antony


    The present study examined a visual field asymmetry in the contingent capture of attention that was previously observed by Du and Abrams (2010). In our first experiment, color singleton distractors that matched the color of a to-be-detected target produced a stronger capture of attention when they appeared in the left visual hemifield than in the…

  6. The Center of Gravity, Systemically Understood (United States)


    the concept still possesses usefulness, although the risk does exist that the term could slip into cognitive obscurity or simply remain the topic...aerial over flights and photography .”75 Because of the systemic approach that Abrams and his team took, the operation achieved great success while

  7. Basic Studies on Electro-Energetic Physics (EEP) Weapons Technologies (United States)


    Po\\\\ered Microwa\\e. High Energ) Laser. Charged Particle Beams. and II) pcrsonic Rail guns . Using these representations. wargame simulations of’ arious...weaponry, it is illustrating to compare these figures with the M-1 Abrams M256 120mm gun firing a M829A1 kinetic energy round Page 5 • Muzzle

  8. Bringing the LHC and ATLAS to a regional planetarium

    CERN Document Server

    Schwienhorst, Reinhard


    An outreach effort has started at Michigan State University to bring particle physics, the Large Hadron Collider, and the ATLAS experiment to a general audience at the Abrams planetarium on the MSU campus. A team of undergraduate students majoring in physics, communications arts & sciences, and journalism are putting together short clips about ATLAS and the LHC to be shown at the planetarium.

  9. Granulopoietic Growth Factor Secretion in Ovarian Carcinoma as a Mechanism for the Emergence of Immune Suppressive Myeloid Subsets (United States)


    Academic Year 2009 – 2013 MIR 522: Chair of Student Journal Club 2013 – present Faculty member, Howard University/RPCI Scholar’s Program Ongoing...2007. 58. Yang, D., Stewart, T. J., Smith, K. K., Georgi , D., Abrams, S. I., and Liu, K. Downregulation of IFNγR in association with loss of Fas

  10. 29 CFR 784.113 - Work related to named operations performed in off- or dead-season. (United States)


    ... nevertheless closely related and directly essential to the production of goods for commerce which takes place... 753 (D. P.R.); Abram v. San Joaquin Cotton Oil Co., 49 F. Supp. 393 (S.D. Calif.), and Heaburg v. Independent Oil Mill Inc., 46 F. Supp. 751 (W.D. Tenn.). On the other hand, there may be situations...

  11. The Boreal Virtual Forest. [CD-ROM]. (United States)

    Indiana Univ.-Purdue Univ., Indianapolis.

    This CD-ROM is an educational CD-ROM aimed at classroom audiences in 5th grade and above. Using QuickTime Virtual Reality (QTVR), the Boreal Virtual Forest is designed so that students are able to see views from inside the central hardwood forest and look up or down or spin around 360 degrees. The program allows students to become familiar with…

  12. Friday Programme for CineGlobe 2015

    CERN Multimedia

    Marcelloni De Oliveira, Claudia


    Workshops, apero with filmmakers and short-films inspired by science were the menu of the festival through the day. At night the CineGlobe DOME shown with the 360 degree projections shot-films; among them the avant-premiere of "Phantom of the Universe" - a movie that explains Dark Matter, directed by Joao Pequenao. Meanwhile at the Globe, the audience could enjoy the projections of the sequence of " The Invisible Photograph" .

  13. Prevention of Football Injuries: A Review of the Literature (United States)


    Its General Medical Service Study Report No. 12-MA-01Q5-05, 2005 11 evolution included movable forefoot cleats mounted upon a 360-degree...second, and third phases, respectively. Knee surgery rates per 1,000 athletes were 15, 5, and 2, respectively. The authors concluded that close...times more likely to undergo surgery for a ruptured ligament than those with less than three indices. The author recommended stretching exercises for

  14. Alternatives for Military Space Radar (United States)


    Because the characteristics and performance of Discov- erer II’s radar are well documented, CBO based the design of its notional Space Radar on that of...2005, report to accompany H.R. 4613, Report 108-553 (June 18, 2004). 13. Air Force Space and Missile Systems Center, “Fact Sheet: Discov- erer II...360-degree coverage in GMTI mode. See Federation of American Scientists, Space Policy Project, “Discov- erer II STARLITE” (January 24, 2000

  15. Phase-Locked Loop For Measurement Of Small And Large Delays (United States)

    Froggatt, Mark


    Electronic signal-generating and processing subsystem of ultrasonic inspection or measurement system consists mainly of variable-and-fixed-frequency, pulsed phase-locked loop (VFFPPLL) measuring phase shifts from 0 degrees to more than 360 degrees with accurancy of 0.112 degrees. VFFPPLL measures phase shifts between transmitted ultrasonic toneburst and its echo, thereby measuring ultrasonic-propagation delay. Used to determine strain in bolt or to track irregular surface of specimen being inspected ultrasonically.

  16. Multisensor On-the-Fly Localization: Precision and Reliability for Applications


    Arras, K.O.; Tomatis, N.; Jensen, B.; Siegwart, R


    In this paper an approach for localization using geometric features from a 360 degree laser range finder and a monocular vision system is presented. Its practicability under conditions of continuous localization during motion in real-time (referred to as on-the-fly localization) is investigated in large-scale experiments. The features are infinite horizontal lines for the laser and vertical lines for the camera. They are extracted using physically well-grounded models for all sensors and pass...

  17. Improving Software Engineering Through Holistic Project Coaching (United States)


    array of disciplines ranging from psychology (e.g., personality tools) to organization behavior (e.g., 360-degree feedback). Once a plan is implemented...their immediate need. • Gestalt : Informal learning tends to happen in synergistic relationships and therefore often results in the creation of...tional Psychology concluded: “Cooperative behaviors were the second strongest component of trust” [17]. Conversely, break- downs in team civility

  18. At Face Value: Visual Antecedents of Impression Formation in Servicescapes


    Verhoeven, Joost W.M.; Rompay, van, Thomas; Pruyn, Ad


    Consumers may base employee impressions on physical appearance and displayed personal objects. In a scenario experiment, using photos of a physician and a 360-degree panorama of his consultation room, we examined the effects of appearance and tangibles on impression formation. Study 1 shows that observers employ various strategies of combining information from different sources when forming an impression of the employee’s friendliness and competence. Whereas previous research has shown that i...

  19. One-step synthesis of bismuth molybdate catalysts via flame spray pyrolysis for the selective oxidation of propylene to acrolein

    DEFF Research Database (Denmark)

    Schuh, K.; Kleist, W.; Høj, Martin


    Flame spray pyrolysis (FSP) of Bi(III)-and Mo(VI)-2-ethylhexanoate dissolved in xylene resulted in various nanocrystalline bismuth molybdate phases depending on the Bi/Mo ratio. Besides alpha-Bi2Mo3O12 and gamma-Bi2MoO6, FSP gave direct access to the metastable beta-Bi2Mo2O9 phase with high surfa...... to acrolein at temperatures relevant for industrial applications (360 degrees C)....

  20. Leadership scheme to develop the careers of talented candidates. (United States)

    Lynas, Karen


    The Top Leaders programme supports career development by identifying talented staff and equipping them with a range of management skills and approaches. The programme uses a diagnostic test to help candidates assess their strengths, leadership styles and development needs, and offers them 360 degrees feedback. This enables them to identify areas they need to develop to be effective and supportive leaders. Two case studies illustrate the programme in action.

  1. Emotional intelligence and the Occupational Personality Questionnaire (OPQ).


    Adrian eFurnham; Mary-Clare eRace; Adrienne eRosen


    This study explores the relationship between the Bar-on EQ-I and the Occupational Personality Questionnaire OPQ32i to determine if there is a link between self- and other-reported Emotional Intelligence and personality traits. Data was obtained from 329 managers working in the IT and Finance sectors and included multi-source (360 degree) measures of Emotional Intelligence. Results indicated construct overlap and correlations between some elements of Emotional Intelligence and the OPQ32i wit...

  2. New Optics See More With Less (United States)

    Nabors, Sammy


    NASA offers companies an optical system that provides a unique panoramic perspective with a single camera. NASA's Marshall Space Flight Center has developed a technology that combines a panoramic refracting optic (PRO) lens with a unique detection system to acquire a true 360-degree field of view. Although current imaging systems can acquire panoramic images, they must use up to five cameras to obtain the full field of view. MSFC's technology obtains its panoramic images from one vantage point.

  3. Utility Assessment of Specificity in Upward Feedback Instruments for Leadership Development (United States)


    the scores are reported back to that supervisor without mention of who completed the survey (London & Wohlers , 1991). Subordinates participating...has been measured in many other studies (Smither & Wohlers , 1995; Hazucha et al., 1993; Leaders reported the degree to which they took action to... Wohlers , 1991). Upward feedback is part of a wider field of study known as multi-rater feedback or 360-degree feedback where data are collected not only

  4. Canaloplasty: Current Value in the Management of Glaucoma


    Carlo Cagini; Claudia Peruzzi; Tito Fiore; Leopoldo Spadea; Myrta Lippera; Stefano Lippera


    Canaloplasty is a nonpenetrating blebless surgical technique for open-angle glaucoma, in which a flexible microcatheter is inserted within Schlemm’s canal for the entire 360 degrees. When the microcatheter exits the opposite end, a 10-0 prolene suture is tied and it is then withdrawn, by pulling microcatheter back through the canal in the opposite direction. Ligation of prolene suture provides tension on the canal and facilitates aqueous outflow. The main advantage of canaloplasty is that thi...

  5. Acoustically shielded exhaust system for high thrust jet engines (United States)

    Carey, John P. (Inventor); Lee, Robert (Inventor); Majjigi, Rudramuni K. (Inventor)


    A flade exhaust nozzle for a high thrust jet engine is configured to form an acoustic shield around the core engine exhaust flowstream while supplementing engine thrust during all flight conditions, particularly during takeoff. The flade airflow is converted from an annular flowstream to an arcuate flowstream extending around the lower half of the core engine exhaust flowstream so as to suppress exhaust noise directed at the surrounding community.

  6. Research on Appraisal System of Procurator Performance by Using High-Order CFA Model

    Directory of Open Access Journals (Sweden)

    Yong-mao Huang


    Full Text Available The prosecutor is the main body of procuratorial organs. The performance appraisal system plays an important role in promoting the work efficiency of procurator. In this paper, we establish the performance appraisal system of procurators by high-order confirmatory factor analysis method and evaluate procurators’ performance by fuzzy comprehensive evaluation method based on the 360 degrees. The results have some help to performance management of procuratorial organs.

  7. Three-hundred-sixty degree barrier effect of a square-edged and an enhanced-edge intraocular lens on centripetal lens epithelial cell migration Two-year results. (United States)

    Vyas, Ashokkumar V; Narendran, Rajesh; Bacon, Peter J; Apple, David J


    To study the 360-degree barrier effect of an intraocular lens (IOL) with a square edge at the optic and an enhanced square edge at the optic-haptic junctions (Rayner 570C C-flex) on centripetal migration of lens epithelial cells (LECs) over a 2-year period. Department of Ophthalmology, Scarborough Hospital, Scarborough, United Kingdom. In a prospective study of 40 consecutive eyes, a C-flex IOL was implanted in the bag after phacoemulsification surgery. Eyes with intraoperative complications, requiring additional procedures, without 360-degree overlap of the optic, or with capsule block syndrome were excluded. Follow-up was at 6, 10, 18, and 24 months. At each visit, high-magnification retroillumination digital photographs were taken using a slitlamp-attached digital camera. The barrier effect to LEC migration across the optic edge and the enhanced square edge at the optic-haptic junction was graded as complete (no epithelial pearls or sheet), partial (few epithelial pearls without sheet), and minimal/none (epithelial sheet behind the IOL optic). Twenty-four patients came to the final follow-up at 24 months. Fifteen of these eyes (63%) had a complete barrier effect throughout the 360 degrees of the IOL. Three eyes (13%) had a partial barrier effect throughout the 360 degrees of the IOL. Three eyes had a complete optic barrier effect but a partial optic-haptic junction barrier effect. Three eyes had a partial optic barrier effect but a complete optic-haptic junction barrier effect. No eye had epithelial sheets extending behind the optic at any location. This study showed the barrier effect of the edge design of the C-flex IOL and the efficacy of the enhanced edge in preventing LEC migration at the optic-haptic junction. The enhanced edge was as effective as a sharp square edge in restricting the LEC migration.

  8. The Plastic Surgery Compass: Navigating the Reconstructive Ladder in the Personalized Health Care Era. (United States)

    Sandberg, Lars Johan M


    The reconstructive ladder and the reconstructive elevator have withstood the test of time as didactic tools for resident education. Over time, many alternative models have been suggested to incorporate the technological advances in plastic surgery, but none of them have focused on the patient. Changes in practice and the trend toward personalized health care demand a 360-degree evaluation and solution of surgical problems incorporating patient-specific characteristics. We, therefore, suggest the concept of the plastic surgery compass to navigate the ladder.

  9. Testing and Validation of Timing Properties for High Speed Digital Cameras - A Best Practices Guide (United States)


    instrumentation control and data acquisition via copper , fiber, and/or microwave paths. Utilizing these links to pass timing information is an...fabricated from aluminum sheet metal. The entire structure will be mounted on a 6 foot steel pillar that is securely erected on a concrete base...2016 A-12 panel board will be designed so that it can be easily rotated 360 degrees about the pillar to face any of the instrumentation mounds at the


    Directory of Open Access Journals (Sweden)

    Arini Widyowati


    Full Text Available Performance appraisal is a crucial aspect to effective human resource management. However there are evidences that current processes are not very effective. Employees will accept the appraisal system if they perceive that the procedure on appraisal system is fair. This study reports the experience with relatively new appraisal system. The system of 360 degree performance appraisal, utilizes ratings from peers, supervisor, and employee. This experiment used 26 of college students from one of university in Yogyakarta as subjects that were divided randomly in to experiment group and control group. Perceive of procedural fairness scale was used to measure perceive of performance appraisal procedural fairness. Result supported the hypotheses that 360 degree performance appraisal was effective to increase perceive of performance appraisal procedural fairness (F=89.229; p= 0.000; p0.05. Perceive of performance appraisal procedural fairness on experiment group significantly increased after 360 degree performance appraisal simulation was given (F=91.460; p=0.000; p<0.05.

  11. 360度評価における自由回答・選択式回答の混合データからの人事評価尺度発見 (United States)

    Asahi, Hidemasa; Ohsawa, Yukio

    In this study, analysis has been executed on the free-description answers in the questionnaire of 360-degree feedback in personnel evaluation in an existing company. The aim of this analysis was to obtain a new evaluation index for the competencies of company managers, on which the company is expected to find a way of growth by enforcing innovative managers. We analyzed and visualized the mixture of textual and the categorical data from questionnaire results in the 360-degree feedback, and followed the presented process of chance discovery. In the case we used KeyGraph, the importance of managers' "trustworthiness" was discovered first. Then, following the process, we focused attention to managers' trustworthiness. That is, we executed a new 360-degree feedback with additional questions regarding managers' trustworthiness, in order to confirm the validity of the measurement. As a result, it turned out that the correlation of a manager's trustworthiness with his/her actions to surroundings, and with the business performances were high. This discovery presented with a useful measure for effective restructuring, leading to the growth of the company, and is currently being introduced to their personnel evaluations. This new process on the mixture of textual and categorical data was essential to this novel application of chance discovery to personnel evaluation. The presented success can be regarded as due to the human-centric process of mining scenarios from the mixed data.

  12. Scleral depressed vitreous shaving, 360 laser, and perfluoropropane (C 3 F 8 for retinal detachment

    Directory of Open Access Journals (Sweden)

    Vivek Chaturvedi


    Full Text Available Purpose : To review the characteristics and outcomes of patients who underwent pars plana vitrectomy (PPV with scleral depressed vitreous shaving, 360 degree peripheral endolaser, and 14% C3F8 gas for rhegmatogenous retinal detachment (RRD. Materials and Methods : A retrospective review of a consecutive series of patients who underwent primary repair of RRD by PPV with scleral depressed vitreous shaving, 360 degree peripheral endolaser, and 14% perfluoropropane (C 3 F 8 was conducted. Patients with less than 3 months follow-up, previous retinal surgery, and higher than grade B proliferative vitreoretinopathy were excluded. Results : Ninety-one eyes were included in the study. The mean age was 60.1 years. The mean follow-up was 13.7 months. The macula was detached in 63% (58/91 of the eyes. The reattachment rate after one surgical procedure was 95% (86/91 while overall reattachment rate was 100%. There was no statistically significant difference between reattachment rates of superior, nasal/temporal, or inferior RRDs. The mean final best corrected visual acuity (BCVA was 20/40. Of all the patients, 66% of patients with macula-off RRDs had a final BCVA of 20/40 or better. Conclusions: PPV with scleral depressed vitreous shaving, 360 degree peripheral endolaser, and 14% C 3 F 8 leads to successful anatomical reattachment with visual improvement in patients with primary RRD.

  13. Leadership development study :success profile competencies and high-performing leaders at Sandia National Laboratories.

    Energy Technology Data Exchange (ETDEWEB)

    Becker, Katherine M.; Mulligan, Deborah Rae; Szenasi, Gail L.; Crowder, Stephen Vernon


    Sandia is undergoing tremendous change. Sandia's executive management recognized the need for leadership development. About ten years ago the Business, Leadership, and Management Development department in partnership with executive management developed and implemented the organizational leadership Success Profile Competencies to help address some of the changes on the horizon such as workforce losses and lack of a skill set in the area of interpersonal skills. This study addresses the need for the Business, Leadership, and Management Development department to provide statistically sound data in two areas. One is to demonstrate that the organizational 360-degree success profile assessment tool has made a difference for leaders. A second area is to demonstrate the presence of high performing leaders at the Labs. The study utilized two tools to address these two areas. Study participants were made up of individuals who have solid data on Sandia's 360-degree success profile assessment tool. The second assessment tool was comprised of those leaders who participated in the Lockheed Martin Corporation Employee Preferences Survey. Statistical data supports the connection between leader indicators and the 360-degree assessment tool. The study also indicates the presence of high performing leaders at Sandia.

  14. Cross-fiber Bragg grating transducer (United States)

    Albin, Sacharia (Inventor); Zheng, Jianli (Inventor); Lavarias, Arnel (Inventor)


    A transducer has been invented that uses specially-oriented gratings in waveguide a manner that allows the simultaneous measurement of physical phenomena (such as shear force, strain and temperature) in a single sensing element. The invention has a highly sensitive, linear response and also has directional sensitivity with regard to strain. The transducer has a waveguide with a longitudinal axis as well as two Bragg gratings. The transducer has a first Bragg grating associated with the waveguide that has an angular orientation .theta..sub.a relative to a perpendicular to the longitudinal axis such that<.theta..sub.a <.theta..sub.max. The second Bragg grating is associated with the waveguide in such a way that the angular orientation .theta..sub.b of the grating relative to a perpendicular to the longitudinal axis is (<.theta..sub.b < The first Bragg grating can have a periodicity .LAMBDA..sub.a and the second Bragg grating can have a periodicity .LAMBDA..sub.b such that the periodicity .LAMBDA..sub.a of the first Bragg grating does not equal the periodicity .LAMBDA..sub.b of the second Bragg grating. The angle of the gratings can be such that .theta..sub.a The waveguide can assume a variety of configurations, including an optical fiber, a rectangular waveguide and a planar waveguide. The waveguide can be fabricated of a variety of materials, including silica and polymer material.

  15. Acquiring diagnostic DaTSCAN images in claustrophobic or difficult patients using a 180 degrees configuration. (United States)

    Notghi, Alp; O'Brien, Joseph; Clarke, Elizabeth A; Thomson, William H


    In this study, we have investigated the feasibility of a 180 degrees DaTSCAN brain SPECT acquisition. This technique has the advantage of being 'open view' for the patient and therefore more acceptable for claustrophobic patients. It also enables easier access for a technologist to hold the patient's head during acquisition to reduce movement in confused patients or in those with severe tremor. In the first part of this study, we validated the practicality and image quality of a 180 degrees acquisition using a DaTSCAN Alderson head phantom with different camera configurations on GE Infinia and Philips AXIS gamma cameras. The effect on image quality of using half the acquisition time was also assessed. In the second part of the study, 50 sets of patient data were reprocessed by reconstructing half of the 360 degrees data to mimic a single-head 180 degrees acquisition. The 180 degrees images were then compared with 360 degrees images for the same patient using a visual score system. The effect of half-time 180 degrees data acquisition on quantification was also assessed using GE QuantiSPECT software. All phantom images from 180 degrees acquisitions contained some degree of distortion at the periphery, but clearly retain the presence of centrally positioned caudate and putamen; hence 180 degrees acquisitions were deemed to produce clinically useful diagnostic images. The shorter (half) acquisition time leads to noisier but acceptable images for all configurations. In the patient study, there was complete agreement between the two reporters with no clinical difference in the diagnostic accuracy between the 180 degrees and 360 degrees images. However, 6 of 50 180 degrees images were marked as poor quality but reportable, compared with 0 of 50 in 360 degrees images. Quantification gave consistently lower nuclei to background ratio values for 180 degrees compared with 360 degrees for normal and abnormal patients. It is possible to obtain diagnostic DaTSCAN images using

  16. A model of competition among more than two languages

    CERN Document Server

    Fujie, Ryo; Masuda, Naoki


    We extend the Abrams-Strogatz model for competition between two languages [Nature 424, 900 (2003)] to the case of n(>=2) competing states (i.e., languages). Although the Abrams-Strogatz model for n=2 can be interpreted as modeling either majority preference or minority aversion, the two mechanisms are distinct when n>=3. We find that the condition for the coexistence of different states is independent of n under the pure majority preference, whereas it depends on n under the pure minority aversion. We also show that the stable coexistence equilibrium and stable monopoly equilibria can be multistable under the minority aversion and not under the majority preference. Furthermore, we obtain the phase diagram of the model when the effects of the majority preference and minority aversion are mixed, under the condition that different states have the same attractiveness. We show that the multistability is a generic property of the model facilitated by large n.

  17. Protandry, sexual size dimorphism, and adaptive growth. (United States)

    Morbey, Yolanda E


    Adaptive growth refers to the strategic adjustment of growth rate by individuals to maximize some component of fitness. The concept of adaptive growth proliferated in the 1990s, in part due to an influential theoretical paper by Peter Abrams and colleagues. In their 1996 paper, Abrams et al. explored the effects of time stress on optimal growth rate, development time, and adult size in seasonal organisms. In this review, I explore how the concept of adaptive growth informs our understanding of protandry (the earlier arrival of males to sites of reproduction than females) and sexual size dimorphism in seasonal organisms. I conclude that growth rate variation is an important mechanism that helps to conserve optimal levels of protandry and sexual size dimorphism in changing environments.

  18. Surface Chemistry and Diffusion of Single Molecules (United States)


    Adsorbate Complex, submitted to Physical Review Letters . M. J. Abrams and P. S. Weiss, Studying Transient Mobility and Energy Loss Using Scanning...submitted to Physical Review Letters . 2. Papers published in refereed journals J. A. Meyer, S. J. Stranick, J. B. Wang, and P. S. Weiss, Field...E. K. Schweizer and N. D. Lang, Scanning Tunneling Microscopy of Xe at 4K, Physical Review Letters 66, 1189 (1991). J. A. Meyer, Extracting

  19. Fernando de Szyszlo Military Professionalization in Chile and Peru. (United States)


    Press, 1966), p. 88. 103 104 Traba, Arte, p. 75. Lauer, Indagacion, p. 52, Rudolf Arnheim, "Artistic Symbols— Freudian and Otherwise," in Toward a...Harry N. Abrams, Inc., 1968. Arnheim, Rudolf. "Artistic Symbols— Freudian and Otherwise." Toward a Psychology of Art: Collected Essays. Rudolf Arnheim...wicn those two periods. The third section is a much more speculative one, attempting to tie Eric Nordlinger’s theories of military in- volvement in

  20. Defense Acquisitions: 2009 is a Critical Juncture for the Army’s Future Combat System (United States)


    In 2008 and 2009, the Army plans o begin funding production of the first of three planned spin outs of FCS echnologies to current forces. However...of service on a mobile ad-hoc network, end-to-end interoperability with strategic networks of the global information grid, and synchronization of FCS...3 current force vehicles—the Abrams tank, the Bradley vehicle, and the High- Mobility Multipurpose Wheeled Vehicle—and to field unattended ground

  1. Army and Marine Corps Active Protection System (APS) Efforts (United States)


    defense expert: In the aftermath of the Ukraine invasion, Western military planners no longer think they can predict how Russian leader Vladimir Putin ... Russia and Israel most notably—and some experts characterize U.S. efforts as somewhat lagging. U.S. military officials contend there are still a number...Ukrainian separatists. 2 1 David Hambling, “ Russia Unveils “Abrams Killer” Rocket,” Wired

  2. Defense Technology Objectives of the Joint Warfighting Science and Technology and Defense Technology Area Plan. (United States)


    occlusion , multipath etc.) through the use of inertial measurement systems (Interferometric Fiber Optic Gyro, Dynamically Tuned Gyro) and systems provide mobile and semi- mobile assets (e.g., Abrams, Theater Missile Defense - TMD ) with low cost, low burden for development of an operational high energy Airborne Laser (ABL) for Theater Missile Defense ( TMD ). Address risk reduction issues for develop

  3. Group typicality, group loyalty and cognitive development. (United States)

    Patterson, Meagan M


    Over the course of childhood, children's thinking about social groups changes in a variety of ways. Developmental Subjective Group Dynamics (DSGD) theory emphasizes children's understanding of the importance of conforming to group norms. Abrams et al.'s study, which uses DSGD theory as a framework, demonstrates the social cognitive skills underlying young elementary school children's thinking about group norms. Future research on children's thinking about groups and group norms should explore additional elements of this topic, including aspects of typicality beyond loyalty.

  4. Design Skills and Prototyping for Defense Systems (United States)


    Abrams tank. New variants are being ordered to maintain the single production plant in Lima , Ohio, even though the Army has sufficient quantities to...References Arena, M. V., Leonard, R. S., Murray, S. E., & Younossi, O. (2006). Historical cost growth of completed weapon system programs. Santa Monica, CA...development (R- 4161-ACQ). Santa Monica, CA: RAND. Drezner, J. A., & Huang, M. (2009). On prototyping: Lessons from RAND research. Santa Monica

  5. The Use of Copulas and MPP-Based Dimension Reduction Method (DRM) to Assess and Mitigate Engineering Risk in the Army Ground Vehicle Fleet (United States)


    optimization ( RBDO ) problems with correlated input variables, a joint cumulative distribution function (CDF) needs to be obtained to transform, using the...based dimension reduction method (DRM) for more accurate inverse reliability analysis and RBDO . As an example of the proposed method, an RBDO study...of an M1A1 Abrams tank roadarm is carried out. 1 ∈ 1. INTRODUCTION In many RBDO problems of automotive engineering, input random variables

  6. Interlinguistic similarity and language death dynamics

    CERN Document Server

    Mira, J


    We analyze the time evolution of a system of two coexisting languages (Castillian Spanish and Galician, both spoken in northwest Spain) in the framework of a model given by Abrams and Strogatz [Nature 424, 900 (2003)]. It is shown that, contrary to the model's initial prediction, a stable bilingual situation is possible if the languages in competition are similar enough. Similarity is described with a simple parameter, whose value can be estimated from fits of the data.

  7. Good Gradings of Generalized Incidence Rings

    CERN Document Server

    Price, Kenneth L


    This inquiry is based on both the construction of generalized incidence rings due to Gene Abrams and the construction of good group gradings of incidence algebras due to Molli Jones. We provide conditions for a generalized incidence ring to be graded isomorphic to a subring of an incidence ring over a preorder. We also extend Jones's construction to good group gradings for incidence algebras over preorders with crosscuts of length one or two.

  8. Medium and High Altitude Unmanned Aircraft System Acquisition: An Efficiency Study of Magnitude and Capability (United States)


    Service Committee Conference Report, Floyd D. Spencer National Defense Authorization Act, Washington, DC: US Congress, 2001, Section 220. 17 US...the Army’s ―single fuel on the battlefield policy.‖ 1 The M1 Abram , M2 Bradley, HMMWV, heavy trucks, helicopters and most Army boats currently use...2007), 68-69. 6 US Congressional Armed Service Committee Conference Report, Floyd D. Spencer National Defense Authorization Act, Washington, DC: US

  9. Historic Properties Report: Stratford Army Engine Plant, Connecticut. (United States)


    Abrams XMl Main Battle Tank. In May 1979 Stratford Division contracted for the first 110 XMI production engines. 2 8 Avco Lycoming also introduced the...helicopter accomplishments see his autobiography The Study of Winged-S; Moran, Aeroplanes Vought, p. 71; Norman Polmar and Floyd D. Kennedy, Jr., Military... Floyd D. Jr. Military Helicopters of the World. Annapolis, Maryland: Naval Institute Press, 1981. Concise guide to historic and contemporary helicopters

  10. Soviet Union, Military Affairs. (United States)


    Combat training and combat standby duty, the opera - tion and servicing of cpmbat equipment, performing guard duty, and daily living little by little...German classical philosophy of Hegel and Feuerbach. The work was written at the beginning of 1886, and it was published initially in the...contains 14 Ml Abrams tanks, 1 motor vehicle, and 16 radios. The motorized infantry (tank) company can be used for the conduct of combat opera

  11. Selected Foreign Counterparts of U.S. Army Ground Combat Systems and Implications for Combat Operations and Modernization (United States)


    not have a new ground combat vehicle under development and “at current funding levels, the Bradley and Abrams will remain in the inventory for 50...time since World War I, that the Army does not have a new ground combat vehicle under development and “at current funding levels, the Bradley and...Jane’s Land Warfare Platforms Armoured Fighting Vehicles, 2016-2017; IHS Jane’s Armour and Artillery, 2011-2012; and unclassified information provided to

  12. Training Needs Assessment and Training Technology Transfer in U.S. Army Europe (USAREUR): 1985 (United States)


    cavalry vehicle crewmembers, USAREUR is requesting ARI MI Abrams products from the Armor School, and success here will be followed by a push to obtain ARI...Armori I I I IH Call andadjust indirect fire tecnology .......... t p:’"I ~ III I I I I I Smart Technology For Training .....................F1F 1... pushed for a similar evaluation. Successful transfer of the Procedure Guides is being sought first, to be followed up by efforts to field evaluate the

  13. 论阿尔西波夫油画色彩的音乐性

    Institute of Scientific and Technical Information of China (English)



    @@ 阿尔希波夫(A rkhipov,Abram Efimovich 1862~1930)出生于农村,是俄罗斯、苏联画家.曾参加过巡回展览画派.他主要描绘农村题材,善于揭示人物的内心世界.曾获俄罗斯联邦共和国"人民艺术家"称号.

  14. 美国通用动力公司:“艾布拉姆斯”系列主战坦克

    Institute of Scientific and Technical Information of China (English)


    美国通用动力地面系统公司(GDLS)为美国陆军研制了M1型“艾布拉姆斯”(M1 Abrams)主战坦克(以艾布拉姆斯将军的名字命名)。配备105毫米M68型线膛坦克炮的首批生产型于1980年完工。

  15. Evaluation of Cyber Sensors for Enhancing Situational Awareness in the ICS environment (United States)


    it lacked the robustness to be deployed and interacted with in production environments. Dustin Berman [4] furthered honeypot research by successfully...typing:startx 72 Bibliography [1] “Gumstix”. 2013. URL [2] Abrams, Marshall and Joe Weiss. “Malicious Control System Cyber Security...industry. Newnes, 2003. [4] Berman , Dustin, Jonathan Butts, Barry Mullins, and Juan Lopez Jr. Emulating Industrial Control System Field Devices Using

  16. Effect of Zealotry in High-dimensional Opinion Dynamics Models (United States)


    common example is the choice of which of several social media platforms to engage in, such as Facebook , Twitter, and Google+ [2]. Another example is... advertising on consumer brand choice, J. Market . Res. 34, 248 (1997). [2] A. M. Kaplan and M. Haenlein, Users of the world, unite! The challenges and...opportunities of social media , Business Horizons 53, 59 (2010). [3] M. Fiorina, S. J. Abrams, and J. Pope, Culture War? The Myth of a Polarized America (Pearson

  17. “Stay disconnected”:Eventising Star Wars for transmedia audiences


    Pett, Emma


    In the run up to the release of The Force Awakens (Abrams, 2015) a proliferation of attractions and interactive screenings emerged around the Star Wars franchise. This article primarily explores participant responses to one of these events, Secret Cinema’s staging of The Empire Strikes Back (Irvin Kershner, 1980), which ran from June to September 2015 in London. Alongside this, discussions of the Star Wars at Madame Tussauds exhibition are also considered, as a different kind of immersive att...

  18. Reconciling Theory and Doctrine in First Amendment Jurisprudence


    Post, Robert


    The twentieth century has seen the birth and the development of the doctrine of the First Amendment's free speech clause. In its current state, free speech jurisprudence is hampered by coexisting but conflicting First Amendment theories and doctrines. In this Essay, Professor Post examines these conflicts. He traces the development of two primary First Amendment theories: the theory of the marketplace of ideas, exemplified by Justices Holmes' dissenting opinion in Abrams v. United States; and...

  19. 'People Love Player's': Cigarette Advertising and the Teenage Consumer in Post-war Britain. (United States)

    O'Neill, Daniel


    This article explores the background, creation and reception of a prominent cigarette advertising campaign from the early 1960s. The advertisements featured young couples falling in love as they shared Player's Medium cigarettes together. As such, the advertisements reflected the central place of the teenager within post-war British consumer culture. The campaign was built upon the insights of market research, particularly that carried out by Mark Abrams and his research organization Research Services Limited. Historians have played down the significance of Abrams's work, but it is argued here that the studies and reports Abrams produced rendered the teenage consumer knowable in a powerful way. Advertisers and manufacturers now had detailed knowledge about young people's consumption habits and their motivations. Such research helped the British tobacco industry formulate a controversial marketing strategy-the need to 'recruit' young people to the smoking habit-and the People Love Player's campaign was created with this in mind. The representations of love and gender included in the advertisements gave the campaign an emotional pull which was designed to resonate with young people. The advertisements were widely criticized and this drove the British tobacco industry to remove from its advertising appeals which might influence the young, such as love. © The Author [2017]. Published by Oxford University Press. All rights reserved. For Permissions, please email:

  20. Omni-directional railguns

    Energy Technology Data Exchange (ETDEWEB)

    Shahinpoor, M.


    This invention is comprised of a device for electromagetically accelerating projectiles. The invention features two parallel conducting circular plates, a plurality of electrode connections to both upper and lower plates, a support base, and a projectile magazine. A projectile is spring-loaded into a firing position concentrically located between the parallel plates. A voltage source is applied to the plates to cause current to flow in directions defined by selectable, discrete electrode connections on both upper and lower plates. Repulsive Lorentz forces are generated to eject the projectile in a 360 degree range of fire.

  1. Measurement of Wind Signatures on the Sea Surface using an L-band Polarimetric Radiometer

    DEFF Research Database (Denmark)

    Søbjærg, Sten Schmidl; Rotbøll, Jesper; Skou, Niels


    A series of circle flights have been carried out over the wind driven sea, using the EMIRAD L-band polarimetric radiometer, described in J. Rotboll et al. (2001). Data are calibrated and corrected for aircraft attitude, and 360 degrees azimuth profiles are generated. The results show some variation...... over a full circle, typically about 1 K, and no clear, repeated azimuth signature from circle to circle is identified. Averaging reduces the variations, and frequency analysis of the profiles show an almost flat spectrum, which excludes a simple extrapolation of wind signatures, known at higher...

  2. Thirty years of research and development of air cushion vehicles (United States)

    Bertelsen, William R.

    This paper describes the conception of the air cushion vehicle (ACV) from experiments with the ground effect of a VTOL aircraft model. Then it describes the evolution of the ultimate ACV drive system through building and testing many models and 16 full-scale ACV to arrive at complete controllability. Adequate control of the frictionless craft, which are without inherent yaw stability, requires control force of the order of magnitude of propulsion. The derived gimbal fans provide such control force in the form of direct thrust, which is instantly available in any of 360 degrees, meterable, instantly cancelable, and reversible.

  3. FLUKA predictions of the absorbed dose in the HCAL Endcap scintillators using a Run1 (2012) CMS FLUKA model

    CERN Document Server

    CMS Collaboration


    Estimates of absorbed dose in HCAL Endcap (HE) region as predicted by FLUKA Monte Carlo code. Dose is calculated in an R-phi-Z grid overlaying HE region, with resolution 1cm in R, 1mm in Z, and a single 360 degree bin in phi. This allows calculation of absorbed dose within a single 4mm thick scintillator layer without including other regions or materials. This note shows estimates of the cumulative dose in scintillator layers 1 and 7 during the 2012 run.

  4. Spherical Panorama Visualization of Astronomical Data with Blender and Python (United States)

    Kent, Brian R.


    We describe methodology to generate 360 degree spherical panoramas of both 2D and 3D data. The techniques apply to a variety of astronomical data types - all sky maps, 2D and 3D catalogs as well as planetary surface maps. The results can be viewed in a desktop browser or interactively with a mobile phone or tablet. Static displays or panoramic video renderings of the data can be produced. We review the Python code and usage of the 3D Blender software for projecting maps onto 3D surfaces and the various tools for distributing visualizations.

  5. 3D Visualization of Machine Learning Algorithms with Astronomical Data (United States)

    Kent, Brian R.


    We present innovative machine learning (ML) methods using unsupervised clustering with minimum spanning trees (MSTs) to study 3D astronomical catalogs. Utilizing Python code to build trees based on galaxy catalogs, we can render the results with the visualization suite Blender to produce interactive 360 degree panoramic videos. The catalogs and their ML results can be explored in a 3D space using mobile devices, tablets or desktop browsers. We compare the statistics of the MST results to a number of machine learning methods relating to optimization and efficiency.

  6. The Development of a Degree 360 Expansion of the Dynamic Ocean Topography of the POCM_4B Global Circulation Model (United States)

    Rapp, Richard H.


    This paper documents the development of a degree 360 expansion of the dynamic ocean topography (DOT) of the POCM_4B ocean circulation model. The principles and software used that led to the final model are described. A key principle was the development of interpolated DOT values into land areas to avoid discontinuities at or near the land/ocean interface. The power spectrum of the POCM_4B is also presented with comparisons made between orthonormal (ON) and spherical harmonic magnitudes to degree 24. A merged file of ON and SH computed degree variances is proposed for applications where the DOT power spectrum from low to high (360) degrees is needed.

  7. Optical signal processing using slow and fast light technologies

    DEFF Research Database (Denmark)

    Capmany, J.; Sales, Salvador; Xue, Weiqi;


    microwave or millimeter-wave frequency bands, we present one scheme to increase the achievable RF phase shift by enhancing light slow-down or speed-up. As a real application in microwave photonics, a widely tunable microwave photonic notch filter with 100% fractional tuning range is also proposed......We review the theory of slow and fat light effects due to coherent population oscillations in semiconductor waveguides, which can be potentially applied in microwave photonic systems as a RF phase shifters. In order to satisfy the application requirement of 360 degrees RF phase shift at different...

  8. An Algorithm to Identify and Localize Suitable Dock Locations from 3-D LiDAR Scans (United States)


    Survey. Map data ©2013 Google 9 Data Collecting Process 5.3.2 In order to collect data, the LiDAR would be placed on a cart and a MATLAB ...program was used to collect data of one scan, or one 360 degree rotation, of the LiDAR . These scans were saved as MATLAB figures for visual reference...Locations from 3-D LiDAR Scans 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Graves, Mitchell Robert 5d. PROJECT NUMBER

  9. Omni-directional railguns (United States)

    Shahinpoor, M.


    A device is disclosed for electromagnetically accelerating projectiles. The invention features two parallel conducting circular plates, a plurality of electrode connections to both upper and lower plates, a support base, and a projectile magazine. A projectile is spring-loaded into a firing position concentrically located between the parallel plates. A voltage source is applied to the plates to cause current to flow in directions defined by selectable, discrete electrode connections on both upper and lower plates. Repulsive Lorentz forces are generated to eject the projectile in a 360 degree range of fire. 4 figs.

  10. Sense and avoid radar for micro/nano robots (United States)

    Molchanov, Pavlo A.; Asmolova, Olha


    Revolutionary new fly eye radar sensor technologies based on an array of directional antennas is eliminating the need for a mechanical scanning antenna or complicated phase processor. Proposed sense and avoid radar based on fly eye radar technology can be very small, provides continuous surveillance of entire sky (360 degree by azimuth and elevation) and can be applied for separate or swarm of micro/nano UAS or UGS. Monopulse technology increases bearing accuracy several folds and radar can be multi-functional, multi-frequency. Fly eye micro-radars are inexpensive, can be expendable. Prototype of sense and avoid radar with two directional antennas has been designed and bench tested.

  11. Succession Planning and Management: The Backbone of the Radiology Group's Future. (United States)

    Donner, E Michael; Gridley, Daniel; Ulreich, Sidney; Bluth, Edward I


    The transition of leadership within radiology practices is often not a planned replacement process with formal development of potential future leaders. To ensure their ongoing success, however, practices need to develop comprehensive succession plans that include a robust developmental program for potential leaders consisting of mentoring, coaching, structured socialization, 360-degree feedback, developmental stretch assignments, job rotation, and formal education. Succession planning and leadership development will be necessary in the future for a practice to be successful in its business relationships and to be financially viable. Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  12. Description of a Photoelectric Rotating Slit Elevation and Azimuth Sensor. (United States)

    Brown, H E; Brown, P B; Goodson, D W; Cope, J D


    The Photoelectric Rotating Slit Elevation and Azimuth Sensor (PERSEAS) measures the azimuth and elevation of the line of sight to a target reflecting or emitting radiation in the 0.4- tol.1-micro portion of the spectrum. Angular field of view is 360 degrees in azimuth and 30 degrees in elevation. Eight stationary lenses are used with rotating fiber-optics slits and silicon photodiode detectors to produce electrical pulses which are time related to target angular coordinates. Data rate is one line-of-sight measurement per 2.5 msec. Accuracy is better than 1 mrad.

  13. High Energy Radial Deposition of Diamond-Like Carbon Coatings

    Directory of Open Access Journals (Sweden)

    Konrad Suschke


    Full Text Available Diamond-like carbon (DLC coatings were deposited with a new direct ion deposition system using a novel 360 degree ion source operating at acceleration voltage between 4 and 8 kV. Cross-sectional TEM images show that the coatings have a three layered structure which originates from changes in the deposition parameters taking into account ion source condition, ion current density, deposition angles, ion sputtering and ion source movement. Varying structural growth conditions can be achieved by tailoring the deposition parameters. The coatings show good promise for industrial use due to their high hardness, low friction and excellent adhesion to the surface of the samples.

  14. Enhanced luminescence of rare-earth complexes Tb(1-x)Eu(x)(m-NBA)3Phen in ZnS. (United States)

    Lv, Yuguang; Zhang, Jingchang; Cao, Weiliang; Song, Lin; Xu, Zheng


    Rare-earth ternary complexes Tb(1-x)Eu(x)(m-NBA)(3)Phen (X=1, 0.25, 0.5, 0.75, 1.0) were synthesized and characterized by IR, DTA-TG, UV, fluorescent spectra and elemental analysis. It was found that luminescence of Eu(3+) complex was enhanced by doped with Tb(3+). It is proved by TG curve that the complexes are stable, ranging from ambient temperature to 360 degrees C in air. The organic-inorganic combined structural device was fabricated, and the electroluminescence intensity of the combined structural device was improved compared with the device of the purely organic components.

  15. Three-dimensional grain mapping by x-ray diffraction contrast tomography and the use of Friedel pairs in diffraction data analysis

    DEFF Research Database (Denmark)

    Ludwig, W.; Reischig, P.; King, A.


    X-ray diffraction contrast tomography (DCT) is a technique for mapping grain shape and orientation in plastically undeformed polycrystals. In this paper, we describe a modified DCT data acquisition strategy which permits the incorporation of an innovative Friedel pair method for analyzing...... diffraction data. Diffraction spots are acquired during a 360 degrees rotation of the sample and are analyzed in terms of the Friedel pairs ((hkl) and (hkl) reflections, observed 180 degrees apart in rotation). The resulting increase in the accuracy with which the diffraction vectors are determined allows...

  16. Torsion of a Communicating Hydrocele Presented as Acute Scrotum: A Case Report and Literature Review (United States)

    Méio, Ivens Baker; Ferrante, Saulo Marcos Rebello; Forny, Danielle Nunes; da Cunha, André Lima


    Torsion of a communicating hydrocele is extremely rare, and the cause is unclear. We report the case of a 3-year-old boy referred to us with acute scrotum. Operative findings revealed torsion of a communicating hydrocele with a 360-degree rotation of the distal end. We performed surgical excision of the necrotic cystic mass and high ligation of the peritoneal communication. A high index of suspicion is required for the correct diagnosis and treatment of this condition, which should be included among the causes of acute scrotum in childhood. PMID:28003926

  17. 3D Immersive Visualization with Astrophysical Data (United States)

    Kent, Brian R.


    We present the refinement of a new 3D immersion technique for astrophysical data visualization.Methodology to create 360 degree spherical panoramas is reviewed. The 3D software package Blender coupled with Python and the Google Spatial Media module are used together to create the final data products. Data can be viewed interactively with a mobile phone or tablet or in a web browser. The technique can apply to different kinds of astronomical data including 3D stellar and galaxy catalogs, images, and planetary maps.

  18. The Plastic Surgery Compass: Navigating the Reconstructive Ladder in the Personalized Health Care Era (United States)


    Summary: The reconstructive ladder and the reconstructive elevator have withstood the test of time as didactic tools for resident education. Over time, many alternative models have been suggested to incorporate the technological advances in plastic surgery, but none of them have focused on the patient. Changes in practice and the trend toward personalized health care demand a 360-degree evaluation and solution of surgical problems incorporating patient-specific characteristics. We, therefore, suggest the concept of the plastic surgery compass to navigate the ladder. PMID:27757348

  19. Use of swivel desks and aisle space to promote interaction in mid-sized college classrooms.

    Directory of Open Access Journals (Sweden)

    Robert G. Henshaw


    Full Text Available Traditional designs for most mid-sized college classrooms discourage 1 face-to-face interaction among students, 2 instructor movement in the classroom, and 3 efficient transitions between different kinds of learning activities. An experimental classroom piloted during Spring Semester 2011 at the University of North Carolina at Chapel Hill uses clusters of stationary desks that swivel 360-degrees and aisle space to address these challenges. The findings from a study involving ten courses taught in the room suggest that there is a need for designs that not only promote quality interactions but also facilitate movement between small group work, class discussion, and lecture.

  20. Remote control of a small unmanned ground vehicle (SUGV) (United States)

    Irimie, Nicolae; Zorila, Alexandru; Nan, Alexandru; Schiopu, Paul


    Developing robot technology has gained an increasing dynamics. Small unmanned ground vehicle - SUGV has gained a place in the robotics field. This paper describes the possibility of remote control of the SUGV using a fuzzy algorithm. This designed algorithm specifically for controlling of a semi-autonomous mobile robot for research, observation, and surveillance. The device can provide 360-degree panoramic images using an image system which includes a hyperboloid mirror and a CCD camera, designed for this specific purpose. Both components, fuzzy algorithm and image system were implemented, tested in the laboratory condition and outdoor on a mobile robot for research, observation, and surveillance.

  1. Oracle APEX 4.2 reporting

    CERN Document Server

    Pathak, Vishal


    Oracle APEX 4.2 Reporting is a practical tutorial for intermediate to advanced use, with plenty of step-by-step instructions and business scenarios for understanding and implementing the ins and outs of making reports.""Oracle APEX 4.2 Reporting"" is for you if you design or develop advanced solutions in APEX or wish to know about the advanced features of APEX. If you wish to have a 360 degree view of reporting technologies or work in a complex heterogeneous enterprise, this is a must-have.

  2. Methods for synthesis of semiconductor nanocrystals and thermoelectric compositions (United States)

    Ren, Zhifeng (Inventor); Chen, Gang (Inventor); Poudel, Bed (Inventor); Kumar, Shankar (Inventor); Wang, Wenzhong (Inventor); Dresselhaus, Mildred (Inventor)


    The present invention provides methods for synthesis of IV VI nanostructures, and thermoelectric compositions formed of such structures. In one aspect, the method includes forming a solution of a Group IV reagent, a Group VI reagent and a surfactant. A reducing agent can be added to the solution, and the resultant solution can be maintained at an elevated temperature, e.g., in a range of about C. to about C., for a duration sufficient for generating nanoparticles as binary alloys of the IV VI elements.

  3. Individual Performance Management: A Review of Current Practices

    Directory of Open Access Journals (Sweden)

    Ian O’ Boyle


    Full Text Available This paper provides a review of current practice in relation to individual performance management systems and process within the traditional business environment. There is a consensus that the role of the individual is central to the overall performance of any organization and how individual performances are managed and evaluated can have significant impacts on overall organizational success. Many organizations employ the traditional performance appraisal in order to monitor and assess individual employee performances. However, new approaches, such as 360-degree feedback have also become commonplace within the business environment. An analysis of each approach including benefits and challenges associated with each process is presented within this paper.

  4. Slow and fast light effects in semiconductor optical amplifiers for applications in microwave photonics

    DEFF Research Database (Denmark)

    Xue, Weiqi

    This thesis analyzes semiconductor optical amplifiers based slow and fast light effects with particular focus on the applications in microwave photonics. We conceive novel ideas and demonstrate a great enhancement of light slow down. Furthermore, by cascading several slow light stages, >360 degree...... microwave phase shifts over a bandwidth of several tens of gigahertz are achieved. These also satisfy the basic requirements of microwave photonic systems. As an application demonstration, a tunable microwave notch filter is realized, where slow light based phase shifters provide 100% fractional tuning over...

  5. The online appeal of the physical shop: How a physical store can benefit from a virtual representation. (United States)

    Moes, Anne; Vliet, Harry van


    Consumer behaviour in 2016 shows that (r)etailers need online/offline integration to better serve their clients. An important distinguishing feature of the physical shop is how it can offer consumers a shopping experience. This study uses two experiments to research the extent a fashion store's shopping experience can be presented to consumers via visual material (a regular photo, a 360-degree photo and a virtual reality photo of the shop) without the consumers being in the shop itself. The effects of these visual materials will also be measured in (among others) terms of purchase intention, visiting intention to the physical shop and online visit satisfaction. A theoretical framework is used to substantiate how the three types of pictures can be classified in terms of medium richness. The completed experiments show, among other outcomes, that consumers who saw the virtual reality photo of the shop have a more positive shopping experience, a higher purchase intention, a higher intention to visit the physical shop and more online visit satisfaction than people who have only seen the regular photo or the 360-degree photo of the shop. Enjoyment and novelty seem to partly explain these found effects.

  6. Implementation of a preoperative briefing protocol improves accuracy of teamwork assessment in the operating room. (United States)

    Paige, John T; Aaron, Deborah L; Yang, Tong; Howell, D Shannon; Hilton, Charles W; Cohn, Isidore; Chauvin, Sheila W


    This study examined the effect of implementing a new preoperative briefing protocol on self- and peer-assessments of individual operating room (OR) teamwork behaviors. From July 2006 to February 2007, OR teamwork performance at a rural community hospital was evaluated before and after training and implementation of the protocol. After each case, every member on the team completed a 360-degree type teamwork behavior evaluation containing both self- and peer-assessments using a six-point Likert type scale (1 = definitely no to 6 = definitely yes). Individual behavior change was measured using the mean scale score of pre and postprotocol assessments. Statistical analysis included t test for both pre/post and self/peer differences. Data were available for one general surgeon and nine OR staff (pre = 20 cases, post = 16 cases). The preprotocol self-assessment mean score was significantly higher than peer-assessment (5.63 vs 5.29, P teamwork behaviors. No difference was observed in postassessment mean scores for self- and peer-assessments. Individuals overestimated their teamwork behaviors before protocol implementation. Using a preoperative protocol seems to improve OR staff teamwork behaviors and self-assessment accuracy. The use of a 360-degree assessment method targeting specific, observable behaviors may be useful in evaluating team-based interventions and enhancing teamwork effectiveness.

  7. Hardness recovery of 85% cold-worked V-Ti and V-Cr-Ti alloys upon annealing at 180{degrees}C to 1200{degrees}C

    Energy Technology Data Exchange (ETDEWEB)

    Loomis, B.A.; Nowicki, L.J.; Smith, D.L. [Argonne National Lab., Chicago, IL (United States)


    The objective of this research is to determine the effect of heat treatment of cold-worked V-Ti and V-Cr-Ti alloys on their resulting microstructures and to correlate the results with the physical and mechanical properties of these alloys. Annealing of 85% cold-worked unalloyed V and V-(1-18)Ti alloys for 1 hr at 180 to 1200{degree}C results in hardness maxima at 180-250{degree}C, 420-600{degree}C, and 1050-1200{degree}C and in hardness minima at 280-360{degree}C and, depending on Ti concentration in the alloy, at 840-1050{degree}C. Annealing of 85% cold-worked V-(4-15)Cr-(3-6)Ti alloys for 1 hr at 180{degree}C to 1200{degree}C results in harness maxima at 180-250{degree}C, 420-800{degree}C, and 1050-1200{degree}C, and in hardness minima at 280-360{degree}C and 920-1050{degree}C.

  8. Strip2CubeFace user%3CU%2B2019%3Es manual.

    Energy Technology Data Exchange (ETDEWEB)

    Forden, Geoffrey Ethan


    Commercial Off The Shelf (COTS) software for producing linked virtual tours based on 360 degree panoramas are becoming more and more available. However, the best current products for taking the images, stitching them into 360 degree panoramas, and then linking them together into complex virtual tours require different and incompatible input and output formats. This program is designed to bridge the gap between the iPix Interactive Studio export format, which consists of a single JPEG with the six faces of a cube connected horizontally, with the six individual JPEGs needed to be imported into Panotour Pro software. This report describes how to use the software program Strip2CubeFace, which takes the cube-strip JPEG exported from iPix Studio and coverts it into six JPEGs representing the six cube faces that Panotour Pro imports. As such, it represents a necessary link between the two COTS software programs key to making virtual tours quickly and easily. It becomes one member of the suite of software programs known as %E2%80%9CRaPP-TOURS%E2%80%9D or Rapid Processing of PanoTours Software necessary to simulate managed access and other permission requesting arms control-type training exercises.

  9. The online appeal of the physical shop: How a physical store can benefit from a virtual representation

    Directory of Open Access Journals (Sweden)

    Anne Moes


    Full Text Available Consumer behaviour in 2016 shows that (retailers need online/offline integration to better serve their clients. An important distinguishing feature of the physical shop is how it can offer consumers a shopping experience. This study uses two experiments to research the extent a fashion store’s shopping experience can be presented to consumers via visual material (a regular photo, a 360-degree photo and a virtual reality photo of the shop without the consumers being in the shop itself. The effects of these visual materials will also be measured in (among others terms of purchase intention, visiting intention to the physical shop and online visit satisfaction. A theoretical framework is used to substantiate how the three types of pictures can be classified in terms of medium richness. The completed experiments show, among other outcomes, that consumers who saw the virtual reality photo of the shop have a more positive shopping experience, a higher purchase intention, a higher intention to visit the physical shop and more online visit satisfaction than people who have only seen the regular photo or the 360-degree photo of the shop. Enjoyment and novelty seem to partly explain these found effects.

  10. High-resolution panoramic images with megapixel MWIR FPA (United States)

    Leboucher, Vincent; Aubry, Gilles


    In the continuity of its current strategy, HGH maintains a deep effort in developing its most recent product family: the infrared (IR) panoramic 360-degree surveillance sensors. During the last two years, HGH optimized its prototype Middle Wave IR (MWIR) panoramic sensor IR Revolution 360 HD that gave birth to Spynel-S product. Various test campaigns proved its excellent image quality. Cyclope, the software associated with Spynel, benefitted from recent image processing improvements and new functionalities such as target geolocalization, long range sensor slue to cue and facilitated forensics analysis. In the frame of the PANORAMIR project sustained by the DGA (Délégation Générale de l'Armement), HGH designed a new extra large resolution sensor including a MWIR megapixel Focal Plane Array (FPA) detector (1280×1024 pixels). This new sensor is called Spynel-X. It provides outstanding resolution 360-degree images (with more than 100 Mpixels). The mechanical frame of Spynel (-S and -X) was designed with the collaboration of an industrial design agency. Spynel got the "Observeur du Design 2013" label.

  11. Visual fields of four batoid fishes: a comparative study. (United States)

    McComb, D Michelle; Kajiura, Stephen M


    The visual fields of elasmobranch fishes are not well characterized even though this is a fundamental element of the visual system. The batoid fishes (skates, rays) form a monophyletic clade within the subclass Elasmobranchii and exhibit a broad range of morphologies and corresponding ecologies. We hypothesized that their visual field characteristics would reflect their diverse morphology and ecology. This was tested by quantifying the monocular, binocular and cyclopean horizontal and vertical visual fields of four batoid species (Raja eglanteria, Urobatis jamaicensis, Dasyatis sabina and Rhinoptera bonasus) that encompassed a range from a basal skate to a more derived ray. The horizontal and vertical visual fields differed significantly among species; however, all species possessed horizontal anterior and dorsal binocular overlaps. Urobatis jamaicensis, a small reef-associated stingray, demonstrated a 360 degrees panoramic visual field in the horizontal plane, and R. bonasus, a schooling benthopelagic ray, a 360 degrees panoramic view in the vertical plane. Large anterior binocular overlaps were measured in D. sabina (72 degrees ) and R. bonasus (46 degrees ) but came at the expense of large posterior blind areas. The anterior binocular overlaps in R. eglanteria (28 degrees ) and U. jamaicensis (34 degrees ) were smaller but were coupled with large monocular fields that provided expansive peripheral views. The most phylogenetically basal species, the clearnose skate (Raja eglanteria), had the most reduced visual field in contrast to the more derived ray species. To our knowledge, this study represents the first comparative assessment of visual fields in basal vertebrates.

  12. Speaking Volumes About 3-D (United States)


    In 1999, Genex submitted a proposal to Stennis Space Center for a volumetric 3-D display technique that would provide multiple users with a 360-degree perspective to simultaneously view and analyze 3-D data. The futuristic capabilities of the VolumeViewer(R) have offered tremendous benefits to commercial users in the fields of medicine and surgery, air traffic control, pilot training and education, computer-aided design/computer-aided manufacturing, and military/battlefield management. The technology has also helped NASA to better analyze and assess the various data collected by its satellite and spacecraft sensors. Genex capitalized on its success with Stennis by introducing two separate products to the commercial market that incorporate key elements of the 3-D display technology designed under an SBIR contract. The company Rainbow 3D(R) imaging camera is a novel, three-dimensional surface profile measurement system that can obtain a full-frame 3-D image in less than 1 second. The third product is the 360-degree OmniEye(R) video system. Ideal for intrusion detection, surveillance, and situation management, this unique camera system offers a continuous, panoramic view of a scene in real time.

  13. GMI High Frequency Antenna Pattern Correction Update Based on GPM Inertial Hold and Comparison with ATMS (United States)

    Draper, David W.


    In an inertial hold, the spacecraft does not attempt to maintain geodetic pointing, but rather maintains the same inertial position throughout the orbit. The result is that the spacecraft appears to pitch from 0 to 360 degrees around the orbit. Two inertial holds were performed with the GPM spacecraft: 1) May 20, 2014 16:48:31 UTC-18:21:04 UTC, spacecraft flying forward +X (0yaw), pitch from 55 degrees (FCS) to 415 degrees (FCS) over the orbit2) Dec 9, 2014 01:30:00 UTC-03:02:32 UTC, spacecraft flying backward X (180yaw), pitch from 0 degrees (FCS) to 360 degrees (FCS) over the orbitThe inertial hold affords a view of the earth through the antenna backlobe. The antenna spillover correction may be evaluated based on the inertial hold data.The current antenna pattern correction does not correct for spillover in the 166 and 183 GHz channels. The two inertial holds both demonstrate that there is significant spillover from the 166 and 183 GHz channels. By not correcting the spillover, the 166 and 183 GHz channels are biased low by about 1.8 to 3K. We propose to update the GMI calibration algorithm with the spill-over correction presented in this document for 166 GHz and 183 GHz.

  14. How to change organisational culture: Action research in a South African public sector primary care facility (United States)

    De Sa, Angela; Christodoulou, Maria


    Background Organisational culture is a key factor in both patient and staff experience of the healthcare services. Patient satisfaction, staff engagement and performance are related to this experience. The department of health in the Western Cape espouses a values-based culture characterised by caring, competence, accountability, integrity, responsiveness and respect. However, transformation of the existing culture is required to achieve this vision. Aim To explore how to transform the organisational culture in line with the desired values. Setting Retreat Community Health Centre, Cape Town, South Africa. Methods Participatory action research with the leadership engaged with action and reflection over a period of 18 months. Change in the organisational culture was measured at baseline and after 18 months by means of a cultural values assessment (CVA) survey. The three key leaders at the health centre also completed a 360-degree leadership values assessment (LVA) and had 6 months of coaching. Results Cultural entropy was reduced from 33 to 13% indicating significant transformation of organisational culture. The key driver of this transformation was change in the leadership style and functioning. Retreat health centre shifted from a culture that emphasised hierarchy, authority, command and control to one that established a greater sense of cohesion, shared vision, open communication, appreciation, respect, fairness and accountability. Conclusion Transformation of organisational culture was possible through a participatory process that focused on the leadership style, communication and building relationships by means of CVA and feedback, 360-degree LVA, feedback and coaching and action learning in a co-operative inquiry group. PMID:27608671

  15. How to change organisational culture: Action research in a South African public sector primary care facility. (United States)

    Mash, Robert; De Sa, Angela; Christodoulou, Maria


    Organisational culture is a key factor in both patient and staff experience of the healthcare services. Patient satisfaction, staff engagement and performance are related to this experience. The department of health in the Western Cape espouses a values-based culture characterised by caring, competence, accountability, integrity, responsiveness and respect. However, transformation of the existing culture is required to achieve this vision. To explore how to transform the organisational culture in line with the desired values. Retreat Community Health Centre, Cape Town, South Africa. Participatory action research with the leadership engaged with action and reflection over a period of 18 months. Change in the organisational culture was measured at baseline and after 18 months by means of a cultural values assessment (CVA) survey. The three key leaders at the health centre also completed a 360-degree leadership values assessment (LVA) and had 6 months of coaching. Cultural entropy was reduced from 33 to 13% indicating significant transformation of organisational culture. The key driver of this transformation was change in the leadership style and functioning. Retreat health centre shifted from a culture that emphasised hierarchy, authority, command and control to one that established a greater sense of cohesion, shared vision, open communication, appreciation, respect, fairness and accountability. Transformation of organisational culture was possible through a participatory process that focused on the leadership style, communication and building relationships by means of CVA and feedback, 360-degree LVA, feedback and coaching and action learning in a co-operative inquiry group.

  16. The effect of environmental factors on the response of human corneal epithelial cells to nanoscale substrate topography. (United States)

    Teixeira, Ana I; McKie, George A; Foley, John D; Bertics, Paul J; Nealey, Paul F; Murphy, Christopher J


    We have previously shown that human corneal epithelial cells sense and react to nanoscale substrate topographic stimuli [Teixeira AI, Abrams GA, Bertics PJ, Murphy CJ, Nealey PF. Epithelial contact guidance on well-defined micro- and nanostructured substrates. J Cell Sci 2003;116(10):1881-92; Karuri NW, Liliensiek S, Teixeira AI, Abrams G, Campbell S, Nealey PF, et al. Biological length scale topography enhances cell-substratum adhesion of human corneal epithelial cells. J Cell Sci 2004;117(15):3153-64]. Here we demonstrate that cellular responses to nanoscale substrate topographies are modulated by the context in which these stimuli are presented to cells. In Epilife medium, cells aligned preferentially in the direction perpendicular to nanoscale grooves and ridges. This is in contrast to a previous study where cells cultured in DMEM/F12 medium aligned in the direction parallel to nanoscale topographic features [Teixeira AI, Abrams GA, Bertics PJ, Murphy CJ, Nealey PF. Epithelial contact guidance on well-defined micro- and nanostructured substrates. J Cell Sci 2003;116(10):1881-92]. Additionally, cell alignment in Epilife medium was dependent on pattern pitch. Cells switched from perpendicular to parallel alignment when the pitch was increased from 400 to 4,000 nm. There was a transition region (between 800 and 1,600 nm pitch) where both parallel and perpendicular alignments were favored compared to all other cellular orientations. Cells formed focal adhesions parallel to the substrate topographies in this transition region. On the nano- and microscale patterns, 400 and 4,000 nm pitch, focal adhesions were almost exclusively oriented obliquely to the topographic patterns.

  17. Progression in work readiness

    DEFF Research Database (Denmark)

    Jensen, Sophie Danneris


    This paper is based partly on literature concerning the construction of identities in social work settings (especially Juhila & Abrams 2011, Eskelinen & Olesen 2010) and partly on literature that addresses the dilemmas and challenges in providing evidence about the effectiveness of interventions...... in social work programs (amongst others Boaz & Blewett 2010 and Koivisto 2008). Initially there will be a short presentation of the research topic of my Ph.D. and the central research question related to the project. Following this is a methodological discussion in two levels - the first discussion...... be understood through short narratives about work identity....

  18. Capstone Depleted Uranium Aerosols: Generation and Characterization

    Energy Technology Data Exchange (ETDEWEB)

    Parkhurst, MaryAnn; Szrom, Fran; Guilmette, Ray; Holmes, Tom; Cheng, Yung-Sung; Kenoyer, Judson L.; Collins, John W.; Sanderson, T. Ellory; Fliszar, Richard W.; Gold, Kenneth; Beckman, John C.; Long, Julie


    In a study designed to provide an improved scientific basis for assessing possible health effects from inhaling depleted uranium (DU) aerosols, a series of DU penetrators was fired at an Abrams tank and a Bradley fighting vehicle. A robust sampling system was designed to collect aerosols in this difficult environment and continuously monitor the sampler flow rates. Aerosols collected were analyzed for uranium concentration and particle size distribution as a function of time. They were also analyzed for uranium oxide phases, particle morphology, and dissolution in vitro. The resulting data provide input useful in human health risk assessments.

  19. Continuous Quantum Computation (United States)


    Eigenvalues and Eigenvectors”, by D.S. Abrams and S. Lloyd Physical Review Letters , 1999, Vol. 83, 5162-5156 [6] “Design of Strongly Y.S. Weinstein, S.Lloyd, J.V. Emerson and D.G. Cory, Physical Review Letters , 2002, Vol. 89,157902 [8] “The Edge of Quantum Chaos”, by Y.S...Weinstein, S. Lloyd and C. Tsallis, Physical Review Letters , 2002, Vol. 89, 214101 [9] “Fidelity Decay as an Efficient Indicator of Quantum Chaos

  20. Cotidiano de combate: imagens subvertidas em uma escola pública da cidade de Campinas


    Sgobin,Alexsandro Aparecido


    Este texto procura descrever experiências realizadas em uma escola da periferia de Campinas, tendo como inspiração a pedagogia libertária, ou anarquista. Com a consciência de que a implantação da própria pedagogia libertária em escolas sob o comando do Estado e, portanto imersas em uma ideologia capitalista, é praticamente impossível sugerir práticas de aula que busquem "anarquismos": movimentos, pensares, amores, batalhas que movimentem o pensamento e abram linhas de fuga, tocando as pretens...

  1. Formas del distanciamiento crítico en la lírica de Jorge Luis Borges, Alberto Girri y Rodolfo Rodino : monólogos dramáticos y galerías de personajes.


    Molina, Elisa Graciela


    “Lo que ahora llamamos psicología del arte -afirma M. H. Abrams al comienzo del capítulo VII de El espejo y la lámpara- se originó cuando los teorizadores en general empezaron a pensar acerca de la mente del artista como algo interpuesto entre el mundo de los sentidos y la obra de arte, y a atribuir las conspicuas diferencias entre el arte y la realidad no a la reflexión de un ideal externo sino a las fuerzas y operaciones dentro de la mente misma. Este desarrollo fue, en gran parte, la contr...

  2. Atlas of Leavitt Path Algebras of small graphs

    CERN Document Server

    Bjerregaard, Pablo Alberca; Barquero, Dolores Martín; González, Cándido Martín; Molina, Mercedes Siles


    The aim of this work is the description of the isomorphism classes of all Leavitt path algebras coming from graphs satisfying Condition (Sing) with up to three vertices. In particular, this classification recovers the one achieved by Abrams et al. in the case of graphs whose Leavitt path algebras are purely infinite simple. The description of the isomorphism classes is given in terms of a series of invariants including the K_0 group, the socle, the number of loops with no exits and the number of hereditary and saturated subsets of the graph.

  3. Behavioral Pharmacology of Human Drug Dependence (United States)


    biological basis and are not considered to be addictions, such as the search for food, sex, warmth , pain avoidance, etc. Although some features of a starving...Clopton, P.L., Leichner, P.P., Abrams, A.A., Judd, L.L., and Pechnick, R. Interpersonal effects of marijuana. Arch Gen Psychiatry, 36:781-785, 1979...would be premature to pass final judgement on the results of the animal studies of nicotine and/or tobacco woke self-administration, firstly, because

  4. Bibliography--Unclassified Technical Reports, Special Reports, and Technical Notes: FY 1982. (United States)


    the Navy: An Evaluation. TR 82-35. February 1982. L. M. Doherty and S. F. Bacon . (AD-A 112 716) This project was conducted to evaluate the...AUTHOR INDEX Author Page Number Abrahams, N.M. 5, 7 Abrams, M. L. 16, 21 Alf, E. F. 6 Atwater, D. M. I Backman, R. 14 Bacon , S. F. 11 Baker, M.S. 15...Commanding Officer, Fleet Anti-Submarine Warfare Training Center, Pacific 55 Comndn Oficr Fle Comba Trainin Cetr Atlanti Commanding Officer, Fleet Combat

  5. Encouraging Democratic Transitions: The Problematic Impact of United States’ Involvement (United States)


    Stanglin, "Bankrolling Oppositions", op. cit., p. 43. 47. Arriagada, Chile, op., cit., pp. 45 and 68 . 48. "Politicians React to Elliot Abrams’ Comments", PY...the Pooh Bahs", op. cit., p. 665. 26. "One Country Where US Ambassador Orders: Yankee Go Home", US News & World Report, December 9, 1968, p. 38. 68 ...decided to liquidate any support for the rebels through terror. The ensuing onslaught, known as the Matanza or "Massacre", resulted in the death of between

  6. Masters of Theory Cambridge and the Rise of Mathematical Physics

    CERN Document Server

    Warwick, Andrew


    Winner of the the Susan Elizabeth Abrams Prize in History of Science.When Isaac Newton published the Principia three centuries ago, only a few scholars were capable of understanding his conceptually demanding work. Yet this esoteric knowledge quickly became accessible in the nineteenth and early twentieth centuries when Britain produced many leading mathematical physicists. In this book, Andrew Warwick shows how the education of these "masters of theory" led them to transform our understanding of everything from the flight of a boomerang to the structure of the universe. Warwick focuses on Cam

  7. FAURY配合比方法研究与应用

    Institute of Scientific and Technical Information of China (English)



    混凝土工程的配合比设计是混凝土施工的重要指导理论,欧洲标准里常用的配合比方法主要有Bolomey Abrams Faury Vallette和Joisel方法,本文结合海外施工项目阿尔及利亚东西高速公路M7标段混凝土施工,详细介绍FAURY配合比方法的原理和设计流程.

  8. A Model of Reenlistment Behavior: Estimates of the Effects of Army’s Selective Reenlistment Bonus on Retention by Occupation (United States)



  9. Preventive Maintenance Checks and Services (PMCS). Do We Check Too Much and Maintain Too Little (United States)


    They were similar to the trucks and tractors that many soldiers had back home on the farms . Since the U.S. was predominantly a rural society then, the...of an item requiring before-operation checks would render the :t m - iot mission-capable. Currently there are over 200 PMCS checks on the new Abrams...ensure that we are maintaining our vehicles in a go-to-war condition and that we are doing it the smart way. Our system requires significant changes

  10. 本刊文后常见参考文献著录格式示例

    Institute of Scientific and Technical Information of China (English)


    1专著著录格式:主要责任者.题名[文献类型].其他责任者(例如翻译者).版本项(1版不著录).出版地:出版者,出版年:引文起页-止页.[1]Abrams W B,Beers M H,Berkow R.默克老年病手册[M].陈灏珠,王赞舜,刘厚钰,等,译.2版.北京:人民卫生出版社,1996:22-25.

  11. 艾布拉姆斯研究综述

    Institute of Scientific and Technical Information of China (English)



    M.H.艾布拉姆斯(Meyer Howard Abrams,1912~2015)的《镜与灯:浪漫主义文论及批评传统》(TheMirror and the Lamp:romantic Theory and the Critical Tradition)着重讨论西方浪漫主义文学批评理论,其艺术理论“四要素”至今仍不断被学者们用于文学批评理论研究.

  12. On Three Meanings in The Rain Lane by Dai Wang-shu%戴望舒《雨巷》的三重意蕴

    Institute of Scientific and Technical Information of China (English)




  13. Ⅱ期种植术中局部牙槽嵴软组织扩展:一例报道

    Institute of Scientific and Technical Information of China (English)

    BaroB; ClauC



  14. 娱乐新闻

    Institute of Scientific and Technical Information of China (English)



  15. Determinants of Attentional Modulation Near the Hands

    Directory of Open Access Journals (Sweden)

    Holger eSchultheis


    Full Text Available A series of visual search experiments conducted by Abrams et al. (2008 indicates that disengagement of visual attention is slowed when the array of objects that are to be searched are close to the hands (hands on the monitor than if they are not close to the hands (hands in the lap. These experiments establish the impact one's hands can have on visual attentional processing. In the current paper we more closely examine these two hand postures with the goal of pinpointing which characteristics are crucial for the observed differences in attentional processing. Specifically, in a set of 4 experiments we investigated additional hand postures and additional modes of response to address this goal. We replicated the original Abrams et al. (2008 effect when only the two original postures were used; however, surprisingly, the effect was extinguished with the new range of postures and response modes, and this extinction persisted across different populations (German and English students, and different experimental hardware. Furthermore, analyses indicated that it is unlikely that the extinction of the effect was caused by increased practice due to additional blocks of trials or by an increased probability that participants were able to guess the purpose of the experiment. As such our results suggest that in addition to the nature of the postures of the hand, the number of postures is a further important factor that influences the impact the hands have on visual processing.

  16. Una capitulación relativa a una compañía crediticia de judíos de Huesca y Jaca

    Directory of Open Access Journals (Sweden)

    Gracia, Eugenio Benedicto


    Full Text Available This article analyzes a 1428 written agreement between Abram Ambivag of Huesca and Judas Avingoyos of Jaca to resolve problems arising from the collection of debts of their credit company. It highlights some of the limitations of notarial sources for the study of Jewish credit, as tacit agreements between lender and debtor were not always spelled out in writing, and it emphasizes the need to reconsider certain aspects of the history of Jewish moneylending.

    Estudio de la capitulación acordada en 1428 entre Abram Ambivag de Huesca y Judas Avingoyós de Jaca, para la resolución de los problemas suscitados por el cobro de ciertas deudas de la compañía crediticia que tienen formada. La lectura del documento pone de manifiesto algunas de las limitaciones de las fuentes notariales para el estudio del crédito judío debido a los pactos tácitos entre prestador y deudor que no siempre eran recogidos por escrito, y subraya la necesidad de reconsiderar determinados aspectos de su historia.

  17. Designing Drill-in Fluids by Using Ideal Packing Technique

    Institute of Scientific and Technical Information of China (English)

    Feng Wenqiang; Yan Jienian


    Selecting bridging agents properly is a critical factor in designing non-damaging or low-damaging drill-in fluids.Historically,Abrams' rule has been used for this purpose.However,Abrams' rule only addresses the size of particle required to initiate a bridge.The rule does not give an optimum size nor an ideal packing sequence for minimizing fluid invasion and optimizing sealing.This paper elaborates an ideal packing approach to solving the sealing problem by sealing pores with different sizes,especially those large pores which usually make dominant contribution to permeability and thereby effectively preventing the solids and filtrate of drill-in fluids from invading into formations,compared with the conventionally used techniques.Practical software has been developed to optimize the blending proportion of several bridging agents,so as to achieve ideal packing effectiveness.The method and its use in selecting the best blending proportion of several bridging agents are also discussed in this paper.A carefully designed drill-in fluid by using the ideal packing technique (named the IPT fluid) for offshore drilling operations at the Weizhou Oilfield,Nanhai West Company,CNOOC is presented.The near 100% return permeabilities from the dynamic damage tests using reservoir cores demonstrated the excellent bridging effect provided by this drill-in fluid.

  18. Hayden White e o pluralismo histórico Hayden White and historical pluralism

    Directory of Open Access Journals (Sweden)

    Daniela Kern


    Full Text Available Este artigo pretende explorar a relação de Hayden White com a crítica pluralista praticada pelos participantes da Escola de Chicago, e mais especificamente o conceito de pluralismo histórico proposto pelo autor em um de seus artigos não recolhido em livro, Historical Pluralism. A fim de conduzir a análise do conceito, será recuperado, em especial, o evento que motivou o texto de White, a saber, o debate público entre os críticos Wayne Booth, Abrams e Hillis Miller, ocorrido nos anos 70.This article explores the relationship between Hayden White and the critical pluralism practiced by the members of the Chicago School, and more specifically the concept of historical pluralism proposed by the author in one of his articles not published in book form, Historical Pluralism. In order to conduct the analysis of this proposed concept, the event that had motivated White's text will be discussed in particular, namely the public debate among the critics, Wayne Booth, Abrams and Hillis Miller, which occurred in the 70s.

  19. Modelos matemáticos e substitución lingüística

    Directory of Open Access Journals (Sweden)

    Johannes Kabatek


    Full Text Available This paper presents a critical review of several recent studies that aim to model language contact, language shift and language death mathematically. We will present the models proposed by Abrams & Strogatz 2003, Mira & Paredes 2005, Mira, Seoane & Nieto 2011, Minett & Wang 2007 and Castelló (2010, as well as Castelló et al. (2012. These papers refer to different contact situations, including Galician-Spanish language contact. The different models and corresponding algorithms will be described and critiqued, distinguishing several degrees of sophistication and adequacy. The study identifies a series of shortcomings, particularly in Abrams & Strogatz’ and Mira & Paredes’ papers: data problems, argumentative and logical errors, and also inadequate simplifications. Nevertheless, it will be argued that the more sophisticated models in particular should continue to be developed, and a “heuristic spiral” between model developers and sociolinguists ought to be pursued, in order to achieve better models and greater insight into the mechanisms involved in language change and language shift.

  20. Using guidelines to support secondment: a personal experience. (United States)

    Dryden, Helen; Rice, Ann Marie


    Secondment is recognized as a method of staff development and can offer both individuals and organizations structure and flexibility in relation to service development. This article describes the experience of a clinical nurse specialist (CNS) seconded 3 days a week for 18 months to a Macmillan Education Unit, as an associate lecturer (the host organization). Different types of secondment are discussed, mapping this experience to Partnership Information Network guidelines. A 360 degrees evaluation process involving all key stakeholders was carried out, and highlighted positive aspects. Secondment is recommended as a valuable and safe method of staff development, increasing knowledge and skills, raising motivation and aiding retention, provided guidelines are adhered to and strategies are in place to mitigate risks.

  1. A Two-Bladed Concept Wind Turbine

    DEFF Research Database (Denmark)

    Kim, Taeseong


    This article shows the potential for reducing extreme loads with an innovative design of wind turbine, a partial pitch two-bladed concept turbine. The most extreme conditions to test a turbine are considered to be stand-still combined with a grid failure in which the wind comes from all directions...... from 0 to 360 degrees. All aeroelastic load simulations are done by using the aeroelastic code HAWC2. From the load comparisons between the partial pitch two-bladed turbine and a conventional three-bladed turbine it is observed that the partial pitch two-bladed turbine can reduce the extreme tower...... bottom bending moment by approximately 33% compared to the three-bladed turbine....

  2. HIMSS Venture+ Forum and HX360 Provide Industry View of Health Technology Innovation, Startup and Investment Activity; Advancing the New Model of Care. (United States)

    Burde, Howard A; Scarfo, Richard


    Presented by HIMSS, the Venture+ Forum program and pitch competition provides a 360-degree view on health technology investing and today's top innovative companies. It features exciting 3-minute pitch presentations from emerging and growth-stage companies, investor panels and a networking reception. Recent Venture+ Forum winners include TowerView Health, Prima-Temp, ActuaiMeds and M3 Clinician. As an industry catalyst for health IT innovation and business-building resource for growing companies and emerging technology solutions, HIMSS has co-developed with A VIA, a new initiative that addresses how emerging technologies, health system business model changes and investment will transform the delivery of care. HX360 engages senior healthcare leaders, innovation teams, investors and entrepreneurs around the vision of transforming healthcare delivery by leveraging technology, process and structure.

  3. UHF Radiowave Propagation through Forests (United States)


    Periodic Dipole Transmitter polarization V, H, RCP Receiver polarization V, H, RCP , LCP Azimuthal range 360 degrees Height range 5-65 feet Transmitters...0,1,-.J2,1.02 2680 CLIP OFF 2690 FOR 1=1 TO 0 STEP -. 2 2700 MOVE .5,1 2710 LABEL USING Imagel;I 2720 Imagel:IMAGE MD.D S2730 NEXT I 2740 VIEWPORT 18*Xr...Ref title$[20,34] 2820 VIEWPORT O*Xri-15,4*Xr+15,26*Yr+10,91*Yr7+i0 2830 WINDOW 0,1,0,1 2840 CLIP OFF S2850 LDIR PI/2 2860 MOVE .5,.5 2870 LORG 5 2880

  4. Anomalous refraction based on acoustic metasurfaces with membranes

    CERN Document Server

    Zhai, Shilong; Chen, Huaijun; Liu, Song; Luo, Chunrong; Zhao, Xiaopeng


    The investigation of metasurface, which is of great current interest, has opened up new degrees of freedom to research metamaterials. In this paper, we propose an ultrathin acoustic metasurface consisting of a series of structurally simple drum-like subunit cells. Eight units with different sizes aer selected to realize discrete transmisson phase shifts ranging from 0 to 360 degrees ar 3.5 KHz. The designed metasurface is capable of manipulating sound waves at will, including anomalous refraction and conversion of propagating waves into surface waves, which can be predicted precisely by the generalized Snell's law. It id worth noting that the total thickness of such planar metasurface is approximately 1/5 of working wavelength, which may be beneficial to the miniaturization and integration of acoustic equipment.

  5. Towards a sustainable tourism competitiveness measurement model for municipalities: Brazilian empirical evidence

    Directory of Open Access Journals (Sweden)

    Simone Alves


    Full Text Available The Charter for Sustainable Tourism of Lanzarote, signed in 1995, is a key document in setting the sustainability commitment of tourism. Later it became a part of the Global Code of Ethics for Tourism (GCET, which defines Tourism Ethics. However a question prevails: how does tourism assumes this duty? And more specifically, how does tourism assume sustainable development? Based on an assessment of 360 degrees on tourism in Cancun (tourists, residents and tourism professionals, the present study explores the perception of sustainability in this destination under the guidelines of GCET. The results show that the per - ception of tourism as a factor for sustainable development is not uniform among the central players, showing a better assessment by tourists, and a more critical view by the resident population and professionals.

  6. Serous retinal detachment after trabeculectomy in angle recession glaucoma

    Directory of Open Access Journals (Sweden)

    Roy, Avik Kumar


    Full Text Available An 18-year-old male with 360 degree angle recession after blunt trauma in his right eye developed uncontrolled intraocular pressure (IOP despite four antiglaucoma medications (AGM with advancing disc damage. He underwent trabeculectomy with intraoperative mitomycin-c (MMC application. There was an intraoperative vitreous prolapse which was managed accordingly. On post-surgery day 1, he had shallow choroidal detachment superiorly with non-recordable IOP. This was deteriorated 1 week postoperatively as choroidal detachment proceeded to serous retinal detachment. He was started with systemic steroid in addition to topical route. The serous effusions subsided within 2 weeks time. At the last follow up at 3 months, he was enjoying good visual acuity, deep anterior chamber, diffuse bleb, an IOP in low teens off any AGM and attached retina. This case highlights the rare occurrence of serous retinal detachment after surgical management of angle recession glaucoma.

  7. dSPACE real time implementation of fuzzy PID position controller for vertical rotating single link arm robot using four-quadrant BLDC drive

    Directory of Open Access Journals (Sweden)

    Manikandan Ramasamy


    Full Text Available Automation has been growing in recent years for the manufacturing industries to increase productivity. Multiple robotic arms are used to handle materials for lifting in flexible directions. The vertical rotation of a 360 degree single arm is considered in this research on a position servo drive with brushless DC motor. The load torque of an arm varies depending upon the angular displacement due to gravity, so it requires four-quadrant operation of the drive with a robust feedback controller. This paper deals with the design and performance comparison of a conventional PID feedback controller with a fuzzy-based PID controller and suggests the most suitable controller. The design was implemented in real time through the dSPACE DS1104 controller environment to verify the dynamic behaviors of the arm.

  8. Spline model of the high latitude scintillation based on in situ satellite data (United States)

    Priyadarshi, S.; Wernik, A. W.


    We present a spline model for the high latitude ionospheric scintillation using satellite in situ measurements made by the Dynamic Explorer 2 (DE 2) satellite. DE 2 satellite measurements give observations only along satellite orbit but our interpolation model fills the gaps between the satellite orbits. This analytical model is based on products of cubic B-splines and coefficients determined by least squares fit to the binned data and constrained to make the fit periodic in 24 hours of geomagnetic local time, periodic in 360 degrees of invariant longitude, in geomagnetic indices and solar radio flux. Discussion of our results clearly shows the seasonal and diurnal behavior of ionospheric parameters important in scintillation modeling for different geophysical and solar activity conditions. We also show that results obtained from our analytical model match observations obtained from in situ measurements. Shishir Priyadarshi Space Research Centre, Poland

  9. Diagnosis and management of traumatic cyclodialysis cleft. (United States)

    Malandrini, Alex; Balestrazzi, Angelo; Martone, Gianluca; Tosi, Gian Marco; Caporossi, Aldo


    A 48-year-old man presented with hyphema, iridocyclitis, iridophacodonesis, and maculopathy after a contusive trauma. Ultrasound biomicroscopy identified a 90-degree cyclodialysis cleft with severe damage of the zonular fibers. Echographic B-scan examination revealed intravitreal hemorrhage and a 360-degree choroidal detachment. One month later, phacoemulsification was performed and a single-piece poly(methyl methacrylate) intraocular lens was inserted into the ciliary sulcus, with the haptic rotated toward the cyclodialysis cleft area. Postoperatively, the visual acuity improved and the intraocular pressure returned to normal. Ultrasound biomicroscopy showed closure of the cleft by reattachment of the ciliary body to the scleral spur. Optical coherence tomography revealed complete resolution of the macular and choroidal folds. Ultrasound biomicroscopy is a useful method for appropriate management of traumatic cyclodialysis cleft. In cases of small cyclodialysis clefts, with the surgical method we describe, the lens haptics apply directional force toward the sclera, fostering adherence of the ciliary body fibers.

  10. A generalization of the convex Kakeya problem

    KAUST Repository

    Ahn, Heekap


    We consider the following geometric alignment problem: Given a set of line segments in the plane, find a convex region of smallest area that contains a translate of each input segment. This can be seen as a generalization of Kakeya\\'s problem of finding a convex region of smallest area such that a needle can be turned through 360 degrees within this region. Our main result is an optimal Θ(n log n)-time algorithm for our geometric alignment problem, when the input is a set of n line segments. We also show that, if the goal is to minimize the perimeter of the region instead of its area, then the optimum placement is when the midpoints of the segments coincide. Finally, we show that for any compact convex figure G, the smallest enclosing disk of G is a smallest-perimeter region containing a translate of any rotated copy of G. © 2012 Springer-Verlag Berlin Heidelberg.

  11. Elliptical-like orbits on a warped spandex fabric: A theoretical/experimental undergraduate research project

    CERN Document Server

    Middleton, Chad A


    We present a theoretical and experimental analysis of the elliptical-like orbits of a marble rolling on a warped spandex fabric. We arrive at an expression describing the angular separation between successive apocenters, or equivalently successive pericenters, in both the small and large slope regimes. We find that a minimal angular separation of approximately 197 degrees is predicted for orbits with small radial distances when the surface is void of a central mass. We then show that for small radii and large central masses, when the orbiting marble is deep within the well, the angular separation between successive apocenters transitions to values greater than 360 degrees. We lastly compare these expressions to those describing elliptical-like orbits about a static, spherically symmetric massive object in the presence of a constant vacuum energy, as described by general relativity.

  12. Initial implementation of mixed reality simulation targeting teamwork and patient safety. (United States)

    Kozmenko, Valeriy; Paige, John; Chauvin, Sheila


    Patient safety is one of the most pressing challenges of modern healthcare. Being a multifactorial problem, patient safety requires improvement interventions on multiple levels including individual, team and organization as a whole. Using high-fidelity human patient simulator in real clinical setting allows creating a mixed reality environment for teaching healthcare teams to improve patient safety. A multidisciplinary group of physicians at Louisiana State University Health Sciences Center in New Orleans has developed and implemented the STEPS program (System for Teamwork Effectiveness and Patient Safety) with the use of MMOR (mobile mock operating room) configuration to train general surgical teams within their own operating room environment. Each simulation session was followed by facilitated debriefing and teaching new team communication skills. Team performances were assessed by both direct observation and team's self-assessment where each team member assessed his or her own performance as well as the performance of all other team members (360 degree assessment).

  13. A Two-Bladed Concept Wind Turbine

    DEFF Research Database (Denmark)

    Kim, Taeseong


    This article shows the potential for reducing extreme loads with an innovative design of wind turbine, a partial pitch two-bladed concept turbine. The most extreme conditions to test a turbine are considered to be stand-still combined with a grid failure in which the wind comes from all directions...... from 0 to 360 degrees. All aeroelastic load simulations are done by using the aeroelastic code HAWC2. From the load comparisons between the partial pitch two-bladed turbine and a conventional three-bladed turbine it is observed that the partial pitch two-bladed turbine can reduce the extreme tower...... bottom bending moment by approximately 33% compared to the three-bladed turbine....

  14. Three-dimensional hologram display system (United States)

    Mintz, Frederick (Inventor); Chao, Tien-Hsin (Inventor); Bryant, Nevin (Inventor); Tsou, Peter (Inventor)


    The present invention relates to a three-dimensional (3D) hologram display system. The 3D hologram display system includes a projector device for projecting an image upon a display medium to form a 3D hologram. The 3D hologram is formed such that a viewer can view the holographic image from multiple angles up to 360 degrees. Multiple display media are described, namely a spinning diffusive screen, a circular diffuser screen, and an aerogel. The spinning diffusive screen utilizes spatial light modulators to control the image such that the 3D image is displayed on the rotating screen in a time-multiplexing manner. The circular diffuser screen includes multiple, simultaneously-operated projectors to project the image onto the circular diffuser screen from a plurality of locations, thereby forming the 3D image. The aerogel can use the projection device described as applicable to either the spinning diffusive screen or the circular diffuser screen.

  15. Color three-dimensional display with omnidirectional view based on a light-emitting diode projector. (United States)

    Yan, Caijie; Liu, Xu; Li, Haifeng; Xia, Xinxing; Lu, Haixia; Zheng, Wenting


    A three-dimensional (3D) color display with 360 degrees omnidirectional views is developed by use of a high frame rate digital micromirror device projector and three-color light-emitting diodes as the light source. The high-speed projector can project a series of color images on a rotating anisotropic diffusing mirror that controls the reflective light in a designed angular region. Observers around the display scene can watch autostereoscopic views from the ominidirectional 360 deg view around the 3D display. The vivid 3D scene can be obtained with perfect color effect and correct parallax, projection effect, and occlusion. The principle of the omnidirectional view 3D color display is analyzed in detail and experimental results of a 3D color object are presented.

  16. Development of non-destructive diagnosis technology for pipe internal in thermal power plants based on robotics

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seungho; Kim, Changhoi; Seo, Yongchil; Lee, Sunguk; Jung, Seungho; Jung, Seyoung


    The Pipelines of power plants may have tiny crack by corrosion. Pipe safety inspection should be performed periodically and non-periodically to ensure their safety and integrity. It is difficult to inspection pipes inside defect since pipes of power plant is covered thermal insulation material. Normally pipes inspection was performed part of pipes on outside. A mobile robot was developed for the inspection of pipe of 100 mm inside diameter. The robot is adopted screw type drive mechanism in order to move vertical, horizontal pipes inside. The multi-laser and camera module, which is mounted in front of the robot, captures a sequence of 360 degree shapes of the inner surface of a pipe. The 3D inner shape of pipe is reconstructed from a multi laser triangulation techniques for the inspection of pipes.

  17. Modular cryostat for ion trapping with surface-electrode ion traps

    CERN Document Server

    Vittorini, Grahame; Brown, Kenneth R; Harter, Alexa W; Doret, S Charles


    We present a simple cryostat purpose built for use with surface-electrode ion traps, designed around an affordable, large cooling power commercial pulse tube refrigerator. A modular vacuum enclosure with a single vacuum space facilitates interior access, and enables rapid turnaround and flexiblity for future modifications. Long rectangular windows provide nearly 360 degrees of optical access in the plane of the ion trap, while a circular bottom window near the trap enables NA 0.4 light collection without the need for in-vacuum optics. We evaluate the system's mechanical and thermal characteristics, and we quantify ion trapping performance by trapping 40Ca+, finding small stray electric fields, long ion lifetimes, and low ion heating rates.

  18. Fostering internalization

    DEFF Research Database (Denmark)

    Baernholdt, Marianne; Drake, Emily; Maron, Frederic


    . Competencies on how to do so should start in the basic nursing programs. A useful strategy is through immersion into another culture through an exchange program. Little is known about successful strategies for two-way or 360 degrees exchange programs between schools from different contries. Guided...... by experimential learning theory, we developed an exchange program with the objective of enhancing nursing students' cultural competence through knowledge building, attitudes and behaviour development. Lessons learned and implications for educational institutions and policy are discussed. Conclusion......: In internationalization of nursing education, an awareness of underlying cultural values regarding nursing competence and taking appropriate action are important for success. Other areas for a successful exchange program include matching of courses or content across schools, clear objectives and evaluation plans. Finally...

  19. Early removal of a Maverick disc prosthesis: surgical findings and morphological changes. (United States)

    François, Jens; Coessens, Ronald; Lauweryns, Philippe


    We report the case of a patient who underwent explantation of a Maverick total disc prosthesis at the L5S1 level because of severe persisting pain one year after initial implantation. Dynamic radiographic imaging studies showed good position and size of the prosthesis and no evidence of loosening. Intraoperatively residual mobility at the proximal bone-prosthesis interface was detected, as well as gross metallosis around the articulation of the total disc prosthesis. A safe and straightforward technique for the extraction of a Maverick prosthesis using a hooked instrument to hook-on the keel of the device is reported. After removal of the device, an anterior lumbar interbody fusion with subsequent posterior pedicle screw fixation and posterior bone grafting with autologous iliac bone was performed (360 degrees fusion). During this posterior procedure, severe L5S1 facet joint arthrosis was observed. Early clinical and radiographic results were good with excellent patient satisfaction.

  20. Thermal analysis in the evaluation of sediment pollution. (United States)

    Rodríguez-Barroso, M R; Ramírez-del Solar, M; Blanco, E; Quiroga, J M; García-Morales, J L


    Characterization of organic matter in four sediments in the infuence area of wastewater discharges was carried out by both chemical and thermal analysis in order to assess their pollution level. Oxidisable organic carbon and organic matter were calculated by the standard methodology in laboratory. Thermogravimetry (TG), between 50 and 900 degrees C, was simultaneously performed in oxidizing conditions on ground sediments samples after three different pretreatments. Linear regression adjust of thermal analysis results versus chemical parameters provides the better Pearson's coefficients, leading to the best coefficients for weight loss in 250-400 degree C temperature range versus oxidisable organic carbon and organic matter at 360 degrees C, respectively. These results demonstrated the utility of thermoanalysis technique for the evaluation of the organic matter content of fresh sediments.

  1. Inhibition of the formation of intermetallic compounds in aluminum-steel welded joints by friction stir welding; Inhibicion de la formacion de compuestos intermetalicos en juntas aluminio-acero soldadas por friccion-agitacion

    Energy Technology Data Exchange (ETDEWEB)

    Torres Lopez, E. A.; Ramirez, A. J.


    Formation of deleterious phases during welding of aluminum and steel is a challenge of the welding processes, for decades. Friction Stir Welding (FSW) has been used in an attempt to reduce formation of intermetallic compounds trough reducing the heat input. In this research, dissimilar joint of 6063-T5 aluminum alloy and AISI-SAE 1020 steel were welded using this technique. The temperature of welded joints was measured during the process. The interface of the welded joints was characterized using optical microscopy, scanning and transmission electron microscopy. Additionally, composition measurements were carried out by X-EDS and DRX. The experimental results revealed that the maximum temperature on the joint studied is less than 360 degree centigrade. The microstructural characterization in the aluminum-steel interface showed the absence of intermetallic compounds, which is a condition attributed to the use of welding with low thermal input parameters. (Author)

  2. The influence of group discussion on performance judgments: rating accuracy, contrast effects, and halo. (United States)

    Palmer, Jerry K; Loveland, James M


    The authors investigated the effect of group discussion, such as may occur formally in panel interview scenarios, assessment centers, or 360-degree feedback situations, on judgments of performance. Research on group polarization suggests that the effect of group discussion combined with raters' preexisting impressions of ratees or interviewees should result in an extremitization of impressions. Thus, the authors hypothesized that group discussion would (a) make ratings less accurate, (b) polarize impressions that were already good or poor as reflected by greater contrast effects, and (c) increase positive halo. Results indicated that group discussion resulted in less accurate ratings and greater contrast effects. Additional analyses suggested that group discussion increased positive halo. The authors discuss implications for research on group or panel judgments.

  3. Emotional intelligence and the Occupational Personality Questionnaire (OPQ

    Directory of Open Access Journals (Sweden)

    Adrian eFurnham


    Full Text Available This study explores the relationship between the Bar-on EQ-I and the Occupational Personality Questionnaire OPQ32i to determine if there is a link between self- and other-reported Emotional Intelligence and personality traits. Data was obtained from 329 managers working in the IT and Finance sectors and included multi-source (360 degree measures of Emotional Intelligence. Results indicated construct overlap and correlations between some elements of Emotional Intelligence and the OPQ32i with a stronger relationship between 360 measures of Emotional Intelligence and personality. On both the self-report measure of EQ-I and the 360 measure the mood scale showed a strongest link with personality factors. Measures of Emotional Intelligence which include a 360 component may thus provide a more useful indicator of an individual’s ability to manage their own feelings and those of others.

  4. 3D自动成像系统%3D Automatic Imaging System

    Institute of Scientific and Technical Information of China (English)

    刘贻圳; 吴俊耦; 魏嘉裕; 吕燚


    针对传统摄影成本高、效率低下、拍摄质量不高、局限于平面化等问题,给出了3D自动成像系统的实现方案.以串口通信技术和图像合成技术为主要研究手段,突破传统摄影弊端,从此让产品摄影简单化、全景化.他们只需配备一台电脑和单反相机,系统通过3D自动成像软件控制单反相机及智能旋转平台对产品进行多角度拍摄,便能在短短的几分钟内可合成出html5格式的产品360°展示动画,而做出来的360°展示动画可以上传到他们的网站、网店、还可以给客户发送产品样板的360°全景展示效果,只要客户点开该360°全景展示动画,就能如实地观看到产品的不同角度跟细节,大大提高了用户体验度,从而增加产品销量.%In view of the problems such as high cost,low efficiency,low quality of shooting and limited to the plane, the implementation scheme of 3D automatic imaging system is given.It uses the serial communication technology as the main research means,breaking through of the traditional photography,and it makes product photography simple and panoramic from now on. They only need to equipped with a computer and Single Lens Reflex camera, the system control Single Lens Reflex camera and intelligent rotating platform for many angles shooting through 3D automatic imaging software,then can synthesize the html5 product that is 360 degrees display animation in a few minutes.And made out of the 360 degree display animation can be uploaded to the website and online shop and the sample of the 360 degrees panoramic display effect can be sent to customers. As long as the customer points to open the 360 degrees panoramic display animation; they can accurately view the product's different angles and details. It greatly improves the user experience, so as to increase product sales.

  5. Qualidade de Vida no Trabalho (QVT: do assistencialismo à promoção efetiva

    Directory of Open Access Journals (Sweden)

    Mário César Ferreira


    Full Text Available On the threshold of the 21st century, the issue of Quality of Work Life (QWL is becoming more and more important on the agendas of leaders and managers from the corporate world. This interest arises in the midst of a scenario that combines, concomitantly, the restructuring of productivity, the worsening of negative indicators for health and safety at work and also the risks associated with reaching corporate goals and objectives. It is in this context that organizations are increasingly investing in QWL. The aim of this text is to provide a 360 degree analysis of the hegemonic QWL practices found in Brazilian organizations, with the intention of providing evidence of their “welfaristic” nature, and, moreover, of their limitations for a genuine improvement in health and safety indicators. Overcoming a “welfaristic” bias requires returning workers and their activities to the role of protagonists for the effective promotion of Quality of Work Life.

  6. Extending Driving Vision Based on Image Mosaic Technique

    Directory of Open Access Journals (Sweden)

    Chen Deng


    Full Text Available Car cameras have been used extensively to assist driving by make driving visible. However, due to the limitation of the Angle of View (AoV, the dead zone still exists, which is a primary origin of car accidents. In this paper, we introduce a system to extend the vision of drivers to 360 degrees. Our system consists of four wide-angle cameras, which are mounted at different sides of a car. Although the AoV of each camera is within 180 degrees, relying on the image mosaic technique, our system can seamlessly integrate 4-channel videos into a panorama video. The panorama video enable drivers to observe everywhere around a car as far as three meters from a top view. We performed experiments in a laboratory environment. Preliminary results show that our system can eliminate vision dead zone completely. Additionally, the real-time performance of our system can satisfy requirements for practical use.

  7. Modified Uniform Triangular Array for Online Full Azimuthal Coverage via JADE-MUSIC Algorithm over MIMO-CDMA Channel

    Directory of Open Access Journals (Sweden)

    Sami Ghnimi


    Full Text Available This paper investigates a Modified Uniform Triangular Array (MUTA to support online space-time MIMO-CDMA location based services with full azimuthal coverage via JADE-MUSIC algorithm. A new space-time lifting preprocessing (STLP scheme is introduced as a decorrelating process of coherent signals through the dense/NLOS multipath MIMO channel before applying the JADE-MUSIC estimator. Uniform- H-Array (UHA and Uniform-X-Array (UXA geometries are established for performance comparisons with the proposed MUTA. Computer simulations under environment Matlab are described to illustrate the performance of online joint angle/delay estimation with MUTA-MIMO base station applying JADE-MUSIC in conjunction with STLP scheme in 360 degrees azimuth region.

  8. Production of the next-generation library virtual tour. (United States)

    Duncan, J M; Roth, L K


    While many libraries offer overviews of their services through their Websites, only a small number of health sciences libraries provide Web-based virtual tours. These tours typically feature photographs of major service areas along with textual descriptions. This article describes the process for planning, producing, and implementing a next-generation virtual tour in which a variety of media elements are integrated: photographic images, 360-degree "virtual reality" views, textual descriptions, and contextual floor plans. Hardware and software tools used in the project are detailed, along with a production timeline and budget, tips for streamlining the process, and techniques for improving production. This paper is intended as a starting guide for other libraries considering an investment in such a project.

  9. Design and Analysis of a Spatial 3-DOF Parallel Manipulator with 2T1R-Type

    Directory of Open Access Journals (Sweden)

    Yanbin Zhang


    Full Text Available A novel asymmetrical spatial parallel manipulator with three degrees of freedom is proposed. The moving platform of the manipulator has two‐translational and one‐rotational (2T1R DOFs with respect to the fixed base. Two other manipulators with platforms with high rotational ability are obtained by making simple changes to the original manipulator’s architecture. The platform of the new mechanisms can rotate 360 degrees around their axis. The motion output characteristics and the mobility of the manipulator are analyzed based on the screw theory. Solutions for position and pose, velocity, acceleration are derived. The Jacobian matrix, mapping the input velocity vector space into the output velocity vector space, is an identical matrix, so the parallel mechanism is free‐singularity and fully‐isotropic. Therefore, these manipulators perform very well with regard to motion and force transmission and have potential applications in the field of industrial robots and medical devices.

  10. Virtual Tower

    Energy Technology Data Exchange (ETDEWEB)

    Wayne, R.A. [Sandia National Labs., Albuquerque, NM (United States). Security Engineering Dept.


    The primary responsibility of an intrusion detection system (IDS) operator is to monitor the system, assess alarms, and summon and coordinate the response team when a threat is acknowledged. The tools currently provided to the operator are somewhat limited: monitors must be switched, keystrokes must be entered to call up intrusion sensor data, and communication with the response force must be maintained. The Virtual tower is an operator interface assembled from low-cost commercial-off-the-shelf hardware and software; it enables large amounts of data to be displayed in a virtual manner that provides instant recognition for the operator and increases assessment accuracy in alarm annunciator and control systems. This is accomplished by correlating and fusing the data into a 360-degree visual representation that employs color, auxiliary attributes, video, and directional audio to prompt the operator. The Virtual Tower would be a valuable low-cost enhancement to existing systems.

  11. Application of 350--Degree Performance Evaluation in College Advisors Management%360度绩效考核法在高校辅导员绩效管理中的应用

    Institute of Scientific and Technical Information of China (English)



    被称为“全方位考核法”的360度考核法运用到辅导员绩效管理体系中,可以有效避免传统绩效评价中考评主体单一、考评指标不明确、评估内容不全面以及反馈评价流于表面等固有弊端。360度考核法的引入对于高校辅导员绩效嗲理制度具有重要的现实意义。%Application of "360- Degree or Overall Evaluation in advisors' performance management can effectively correct the maladies of traditional performance evaluation such as singular subject, indefinite evaluation index, incomprehensive assessment content and superficial feedback. The application is of great realistic significance to advisors' performance management system.

  12. Direct leaf trajectory optimization for volumetric modulated arc therapy planning with sliding window delivery

    CERN Document Server

    Papp, Dávid


    We propose a novel optimization model for volumetric modulated arc therapy (VMAT) planning that directly optimizes deliverable leaf trajectories in the treatment plan optimization problem, and eliminates the need for a separate arc-sequencing step. In this model, a 360-degree arc is divided into a given number of arc segments in which the leaves move unidirectionally. This facilitates an algorithm that determines the optimal piecewise linear leaf trajectories for each arc segment, which are deliverable in a given treatment time. Multi-leaf collimator (MLC) constraints, including maximum leaf speed and interdigitation, are accounted for explicitly. The algorithm is customized to allow for VMAT delivery using constant gantry speed and dose rate, however, the algorithm generalizes to variable gantry speed if beneficial. We demonstrate the method for three different tumor sites: a head-and-neck case, a prostate case, and a paraspinal case. For that purpose, we first obtain a reference plan for intensity modulated...

  13. Colleague and patient appraisal of consultant psychiatrists and the effects of patient detention on appraisal scores. (United States)

    Heneghan, Miranda; Chaplin, Robert


    Aims and method This paper aims to review colleague and patient feedback from the 10-year period of the operation of the Royal College of Psychiatrists' 360-degree appraisal system, specifically: (1) examine the overall distribution of ratings; (2) examine the effect of working primarily with detained patients on patient feedback, represented by forensic psychiatrists; and (3) look for a relationship between colleague and patient ratings. Results Data were analysed for 977 participating psychiatrists. Both colleagues and patients rated psychiatrists overall with high scores. Less than 1% were identified as low scorers, although there was no relationship between those identified by colleagues or patients. Colleague and patient feedback scores varied little between subspecialties including forensic consultants. Clinical implications Psychiatrists in all subspecialties obtained high scores from colleagues and staff. Working with detained patients appeared to have little effect on patient ratings.

  14. Assessing patient care: summary of the breakout group on assessment of observable learner performance. (United States)

    Takayesu, James Kimo; Kulstad, Christine; Wallenstein, Joshua; Gallahue, Fiona; Gordon, David; Leone, Katrina; Kessler, Chad


    There is an established expectation that physicians in training demonstrate competence in all aspects of clinical care prior to entering professional practice. Multiple methods have been used to assess competence in patient care, including direct observation, simulation-based assessments, objective structured clinical examinations (OSCEs), global faculty evaluations, 360-degree evaluations, portfolios, self-reflection, clinical performance metrics, and procedure logs. A thorough assessment of competence in patient care requires a mixture of methods, taking into account each method's costs, benefits, and current level of evidence. At the 2012 Academic Emergency Medicine (AEM) consensus conference on educational research, one breakout group reviewed and discussed the evidence supporting various methods of assessing patient care and defined a research agenda for the continued development of specific assessment methods based on current best practices. In this article, the authors review each method's supporting reliability and validity evidence and make specific recommendations for future educational research.

  15. Far-zone contributions of airborne gravity anomalies' upward/downward continuation

    Directory of Open Access Journals (Sweden)

    Boyang Zhou


    Full Text Available Airborne gravimetry has become a vital technique in local gravity field approximation, and upward/downward continuation of gravity data is a key process of airborne gravimetry. In these procedures, the integral domain is divided into two parts, namely the near-zone and the far-zone. The far-zone contributions are approximated by the truncation coefficients and a global geo-potential model, and their values are controlled by several issues. This paper investigates the effects of flight height, the size of near-zone cap, and Remove-Compute-Restore (RCR technique upon far-zone contributions. Results show that at mountainous area the far-zone contributions can be ignored when EIGEN-6C of 360 degree is removed from the gravity data, together with a near-zone cap of 1° and a flight height less than 10 km, while at flat area EIGEN-6C of 180 degree is feasible.

  16. Ab interno sclerostomy with a high-powered argon endolaser. Clinicopathologic correlation. (United States)

    Jaffe, G J; Mieler, W F; Radius, R L; Kincaid, M C; Massaro, B M; Abrams, G W


    A high-powered argon blue-green laser coupled to a 300-microns quartz fiberoptic probe was used to create an ab interno sclerostomy in a patient undergoing enucleation for a blind painful eye. Despite the presence of diffuse rubeosis, 360 degrees peripheral anterior synechiae, and superior conjunctival scarring, it was possible to create a full-thickness defect from the anterior chamber angle to the subconjunctival space without operative complications. Six laser applications were required using 8 W of power per pulse and 0.1-second pulse duration. The eye was enucleated immediately after the laser procedure, prepared for light microscopy, and sectioned serially. Histologic analysis demonstrated a patent fistula approximately 300 microns in diameter with sharp wound margins. Tissue damage was localized to within 150 microns of the sclerostomy. The overlying conjunctiva was intact.

  17. [An experimental model of hepatointestinal transplant in the pig with clinical applications]. (United States)

    López Santamaría, M; Gámez, M; Murcia, J; Bueno, J; Paz, J A; Canser, E; Reinoso, F; Muñoz, J; Lobato, R; Martínez, L; de Miguel, E; Polanco, I; Jara, P; Tovar, J


    A model of experimental hepatointestinal transplant in pigs, with clinical applications is presented. Ten animals received a graft composed by the liver and the full length of the small bowel. Two pigs died during the transplant and in eight the surgical procedure was well tolerated with a good revascularization of the grafts. The coagulation parameters were normal after the transplant and only minor biochemical disturbances were found. The main difficulties of the surgical technique are related with the poor tolerance of the pig to the portal and caval clamping, and the close relationships of the duodenum, pancreas and distal colon, produced by the 360 degrees anti-clockwise bowel rotation around the mesenteric vessels. Clamping the supraceliac aorta during the implant of the graft keeps the animal hemodynamically stable and makes unnecessary the use of the more complicated veno venous shunt.

  18. Panoramic imaging perimeter sensor design and modeling

    Energy Technology Data Exchange (ETDEWEB)

    Pritchard, D.A.


    This paper describes the conceptual design and preliminary performance modeling of a 360-degree imaging sensor. This sensor combines automatic perimeter intrusion detection with immediate visual assessment and is intended to be used for fast deployment around fixed or temporary high-value assets. The sensor requirements, compiled from various government agencies, are summarized. The conceptual design includes longwave infrared and visible linear array technology. An auxiliary millimeter-wave sensing technology is also considered for use during periods of infrared and visible obscuration. The infrared detectors proposed for the sensor design are similar to the Standard Advanced Dewar Assembly Types Three A and B (SADA-IIIA/B). An overview of the sensor and processor is highlighted. The infrared performance of this sensor design has been predicted using existing thermal imaging system models and is described in the paper. Future plans for developing a prototype are also presented.

  19. Of rocks and safe channels: learning to navigate as an interprofessional team. (United States)

    Bateman, Hilarie; Bailey, Peter; McLellan, Hilary


    A new interprofessional primary care team was established in a greenfield site. Using anethnographic approach, significant experiences in the formation of the team were documented and specific problem areas were defined and addressed using action research principles. The nature of the problems experienced and the processes used in their resolution are described and related to current policy recommendations and to existing literature on the theory and practice of team development. Problems include: the potentially varied expectations and managerial requirements of collaborating partners, the lack of clarity over professional roles and associated essential competencies, and the appropriate management and development of specialist professional roles. Conclusions drawn concern the complexity of the issues raised by interprofessional team working, and the value of existing techniques and models in this setting, such as the viable systems model, 360 degree appraisal and action research.

  20. Cavity preparation machine for the standardization of in vitro preparations. (United States)

    Soares, Carlos José; Fonseca, Rodrigo Borges; Gomide, Henner Alberto; Correr-Sobrinho, Lourenço


    Several in vitro studies employ the confection of cavity preparations that are difficult to standardize by means of manual high speed handpieces. This study presents the development of a cavity preparation machine designed to standardize in vitro cavity preparations. A metal base of 25 mm x 25 mm x 4 mm (length x width x height) was coupled to a small mobile table which was designed to be able to move by means of two precision micrometers (0.01-mm accuracy) in the horizontal directions (right-left, and back-front). A high speed handpiece was coupled to a metallic connecting rod which had an accurate dial indicator enabling control of the vertical movement. The high speed handpiece is also able to move 180 degrees around its longitudinal axis and 360 degrees around its transversal axis. The suggested cavity preparation machine precisely helps in the standardization of cavity preparations for in vitro studies.

  1. Volvulus of the gall bladder diagnosed by ultrasonography, computed tomography, coronal magnetic resonance imaging and magnetic resonance cholangio-pancreatography

    Institute of Scientific and Technical Information of China (English)

    Nobuhisa Matsuhashi; Chihiro Tanaka; Atsushi Misao; Shinji Ogura; Shinichi Satake; Kazunori Yawata; Eri Asakawa; Takashi Mizoguchi; Masayuki Kanematsu; Hiroshi Kondo; Ichiro Yasuda; Kenichi Nonaka


    A 54-year-old woman was admitted to our hospital with the complaint of right upper quadrant pain. Upon physical examination the vital signs of the patient were within normal ranges. Ultrasonography and computed tomography (CT) examination of the abdomen was obtained, which demonstrated a large dilatated cystic structure, measuring approximately 68.6 mm ×48.6 mm, with marked distension and inflammation.Additionally, the enhanced CT was characterized by the non-enhanced wall of the gallbladder. As the third examination in this study, magnetic resonance imaging(MRI), namely coronal MRI and magnetic resonance cholangio-pancreatography (MRCP), were performed.The MRCP demonstrated a dilatation of the gallbladder but detected no neck of the gallbladder. Simple cholecystectomy was performed. Macroscopic findings included a distended and gangrenous gallbladder, and closer examination revealed a counterclockwise torsion of 360 degrees on the gallbladder mesentery. Coronal MRI and MRCP showing characteristic radiography may be useful in making a definitive diagnosis.

  2. 360º Degree Requirement Elicitation Framework for Cloud Service Providers

    Directory of Open Access Journals (Sweden)

    Versha Saxena


    Full Text Available Thisstudy addresses the factors responsible for cloud computing adoption in implementing cloud computing for any organization. Service Level Agreements play a major role for cloud consumer as well as for cloud provider. SLA depends on the requirements gathered by the cloud providers and they vary with the type of organizations for which process is being performed such as education, retail, IT industry etc. SLAs for cloud computing involves technical as well as business requirements which makes the gathering of requirements from stakeholders point of view the heterogeneous process. This research work proposes a 360 degree requirement gathering framework, which reduces the complexitiesduring the process of requirement gathering by cloud service providersas well as SLAs more reliant.

  3. Flashback detection sensor for lean premix fuel nozzles (United States)

    Thornton, Jimmy Dean; Richards, George Alan; Straub, Douglas L.; Liese, Eric Arnold; Trader, Jr., John Lee; Fasching, George Edward


    A sensor for detecting the flame occurring during a flashback condition in the fuel nozzle of a lean premix combustion system is presented. The sensor comprises an electrically isolated flashback detection electrode and a guard electrode, both of which generate electrical fields extending to the walls of the combustion chamber and to the walls of the fuel nozzle. The sensor is positioned on the fuel nozzle center body at a location proximate the entrance to the combustion chamber of the gas turbine combustion system. The sensor provides detection of a flashback inside the fuel nozzle, by detecting the current conducted by the flame within a time frame that will prevent damage to the gas turbine combustion system caused by the flashback condition.

  4. World leading virtual reality mining technology

    Energy Technology Data Exchange (ETDEWEB)



    The development of immensely realistic Virtual Reality (VR) underground and surface mining environments resulting from a unique inter-disciplinary collaboration at the University of New South Wales has generated multi-million dollar sales and attracted intense interest across the mining sector. The university is supplying VR technologies to Coal Services Pty Ltd. (CSPL) for safety training. Similar to a giant computer game, each interactive software module recreates mine environments for various training scenarios and is displayed in multiple theatre modes including a 360-degree AVIE version for group training and a 180-degree iDome for individual training sessions. Further information is available from 5 photos.

  5. High mass resolution, high angular acceptance time-of-flight mass spectroscopy for planetary missions under the Planetary Instrument Definition and Development Program (PIDDP) (United States)

    Young, David T.


    This final report covers three years and several phases of work in which instrumentation for the Planetary Instrument Definition and Development Program (PIDDP) were successfully developed. There were two main thrusts to this research: (1) to develop and test methods for electrostatically scanning detector field-of-views, and (2) to improve the mass resolution of plasma mass spectrometers to M/delta M approximately 25, their field-of-view (FOV) to 360 degrees, and their E-range to cover approximately 1 eV to 50 keV. Prototypes of two different approaches to electrostatic scanning were built and tested. The Isochronous time-of-flight (TOF) and the linear electric field 3D TOF devices were examined.

  6. Indexing system for optical beam steering (United States)

    Sullivan, Mark T.; Cannon, David M.; Debra, Daniel B.; Young, Jeffrey A.; Mansfield, Joseph A.; Carmichael, Roger E.; Lissol, Peter S.; Pryor, G. M.; Miklosy, Les G.; Lee, Jeffrey H.


    This paper describes the design and testing of an indexing system for optical-beam steering. The cryogenic beam-steering mechanism is a 360-degree rotation device capable of discrete, high-precision alignment positions. It uses low-precision components for its rough alignment and kinematic design to meet its stringent repeatability and stability requirements (of about 5 arcsec). The principal advantages of this design include a decoupling of the low-precision, large angular motion from the high-precision alignment, and a power-off alignment position that potentially extends the life or hold time of cryogenic systems. An alternate design, which takes advantage of these attributes while reducing overall motion, is also presented. Preliminary test results show the kinematic mount capable of sub-arc second repeatability.

  7. Catalytic Oxidation of Benzene Over LaCoO3 Perovskite-Type Oxides Prepared Using Microwave Process. (United States)

    Jung, Won Young; Song, Young In; Lim, Kwon Taek; Lee, Gun Dae; Lee, Man Sig; Hong, Seong-Soo


    LaCoO3 perovskite type oxides were successfully prepared using microwave-assisted method, characterized by TG/DTA, XRD, XPS and H2-TPR and their catalytic activities for combustion of benzene were determined. Almost of catalyst showed perovskite crystalline phase and 13-84 nm particle size. LaCoO3 catalysts prepared by microwave-assisted method showed the highest activity and the conversion reached almost 100% at 360 degrees C. In the LaCoO3-type catalyst, the partial substitution of Sr into site A enhanced the catalytic activity on the combustion of benzene. The higher amount of the chemisorbed oxygen was, the better the performance of the combustion catalyst. The catalytic activity of perovskite-type oxides showed a good relationship with the results of H2-TPR and XPS measurement.

  8. Design of a 3-D surface scanner for lower limb prosthetics: a technical note. (United States)

    Commean, P K; Smith, K E; Vannier, M W


    A three-dimensional (3-D) noncontact optical surface range sensing imaging system that captures the entire circumferential and distal end surfaces of lower limb residua in less than 1 second has been developed. The optical surface scanner (OSS) consists of four charge injection device (CID) cameras and three white light projectors, mounted on a rigid frame surrounding the subject's residuum, allowing 360 degrees surface coverage of the lower residual limb. Anatomic 3-D computer graphics reconstruction of a residuum surface, recorded with the OSS imaging system, is used for visualization and measurement. One cubical and two spherical calibration test objects were used to obtain a system precision of less than 1 mm. In a study conducted with 13 persons with below knee (BK) amputation, the OSS system was compared to calipers, electromagnetic digitizer, and volumetric computed tomography with better than 1 mm precision on plaster positive casts and approximately 2 mm on the residual limbs.

  9. Miniaturized magnetic-driven scanning probe for endoscopic optical coherence tomography. (United States)

    Pang, Ziwei; Wu, Jigang


    We designed and implemented a magnetic-driven scanning (MDS) probe for endoscopic optical coherence tomography (OCT). The probe uses an externally-driven tiny magnet in the distal end to achieve unobstructed 360-degree circumferential scanning at the side of the probe. The design simplifies the scanning part inside the probe and thus allows for easy miniaturization and cost reduction. We made a prototype probe with an outer diameter of 1.4 mm and demonstrated its capability by acquiring OCT images of ex vivo trachea and artery samples from a pigeon. We used a spectrometer-based Fourier-domain OCT system and the system sensitivity with our prototype probe was measured to be 91 dB with an illumination power of 850 μW and A-scan exposure time of 1 ms. The axial and lateral resolutions of the system are 6.5 μm and 8.1 μm, respectively.

  10. Fish Eye View of Horizon and Lander (United States)


    North is up (12 o'clock position) in this seam-corrected 360 degree polar projection using downsampled images from sols 1 and 3. Seam boundaries show different times of day, e.g. 9 o'clock (west) position shows scoop of RA, 7 o'clock view shows the MET mast with telltale (mast contains three temperature sensors). Note: hummocky terrain with troughs, typical of Earth polar terrain where we would see permafrost and ice beneath surface. The Phoenix Mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

  11. Study on the swirling flow field in a rotating cylinder. 1st Report. Numerical analysis-1; Kaiten kannai ni okeru senkai nagareba ni kansuru kenkyu. 1. suchi kaiseki-1

    Energy Technology Data Exchange (ETDEWEB)

    Kishibe, T. [Hitachi, Ltd., Tokyo (Japan); Kaji, S. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering


    The swirling flow field including non-axisymmetric phenomena in a rotating hollow turbine shaft is solved using computational fluid dynamics. The three-dimensional compressible Navier-Stokes equations are adopted and discretized by an implicit TVD scheme. No axisymmetric assumption is applied in order to find non-axisymmetric phenomena. The computational domain, therefore, is extended circumferentially to 360 degree and axisymmetric boundary conditions along the center axis are avoided. The existence of a rotating spiral vortex at the place where the swirling flow turns radially outward is shown. The spiral vortex rotates about the shaft center axis in the same direction as the circumferential velocity of the main flow. Conversely, the vortex has a spiral form opposite to the rotational direction of the fluid. The first non-axisymmetric mode of a single spiral vortex is transformed into the second mode of a double spiral vortex at a specific rotating speed of the shaft. (author)

  12. A Faculty Toolkit for Formative Assessment in Pharmacy Education. (United States)

    DiVall, Margarita V; Alston, Greg L; Bird, Eleanora; Buring, Shauna M; Kelley, Katherine A; Murphy, Nanci L; Schlesselman, Lauren S; Stowe, Cindy D; Szilagyi, Julianna E


    This paper aims to increase understanding and appreciation of formative assessment and its role in improving student outcomes and the instructional process, while educating faculty on formative techniques readily adaptable to various educational settings. Included are a definition of formative assessment and the distinction between formative and summative assessment. Various formative assessment strategies to evaluate student learning in classroom, laboratory, experiential, and interprofessional education settings are discussed. The role of reflective writing and portfolios, as well as the role of technology in formative assessment, are described. The paper also offers advice for formative assessment of faculty teaching. In conclusion, the authors emphasize the importance of creating a culture of assessment that embraces the concept of 360-degree assessment in both the development of a student's ability to demonstrate achievement of educational outcomes and a faculty member's ability to become an effective educator.

  13. Multimedia Discovery of the Leonardo’s Vitruvian Man

    Directory of Open Access Journals (Sweden)

    Eva Savina Maliverni


    Full Text Available The dissemination and exploitation of cultural heritage milestones by using multimedia and interactive technologies continuously and quickly grows capturing the attention of academia and companies. It is necessary to adopt the state of the art technologies to present and make bi-directional the interaction of users with cultural heritage objects. In this work, we present two different applications of novel technologies applied to the Vitruvian man of Leonardo. The first application is the mirror that exploits a 3D depth sensor to compare the proportions of a user with the perfect ones of the Vitruvian man. The second application is a complex interaction between a complete novel 3D model of the Leonardo’s Vitruvian Man, sounds and image effects inside a 360-degrees hologram. These two systems are the results of interaction between academia and the 3D EVE spin-off company.

  14. High-efficiency light-wave control with all-dielectric optical Huygens' metasurfaces

    CERN Document Server

    Decker, Manuel; Falkner, Matthias; Dominguez, Jason; Neshev, Dragomir N; Brener, Igal; Pertsch, Thomas; Kivshar, Yuri S


    Optical metasurfaces have developed as a breakthrough concept for advanced wave-front engineering enabled by subwavelength resonant nanostructures. However, reflection and/or absorption losses as well as low polarisation-conversion efficiencies pose a fundamental obstacle for achieving high transmission efficiencies that are required for practical applications. Here we demonstrate, for the first time to our knowledge, highly efficient all-dielectric metasurfaces for near-infrared frequencies using arrays of silicon nanodisks as meta-atoms. We employ the main features of Huygens' sources, namely spectrally overlapping electric and magnetic dipole resonances of equal strength, to demonstrate Huygens' metasurfaces with a full transmission-phase coverage of 360 degrees and near-unity transmission, and we confirm experimentally full phase coverage combined with high efficiency in transmission. Based on these key properties, we show that all-dielectric Huygens' metasurfaces could become a new paradigm for flat opti...

  15. Modified Faraday cup (United States)

    Elmer, John W.; Teruya, Alan T.; O'Brien, Dennis W.


    A tomographic technique for measuring the current density distribution in electron beams using electron beam profile data acquired from a modified Faraday cup to create an image of the current density in high and low power beams. The modified Faraday cup includes a narrow slit and is rotated by a stepper motor and can be moved in the x, y and z directions. The beam is swept across the slit perpendicular thereto and controlled by deflection coils, and the slit rotated such that waveforms are taken every few degrees form to and the waveforms are recorded by a digitizing storage oscilloscope. Two-din-tensional and three-dimensional images of the current density distribution in the beam can be reconstructed by computer tomography from this information, providing quantitative information about the beam focus and alignment.

  16. Hamstrings to quadriceps peak torque ratios diverge between sexes with increasing isokinetic angular velocity. (United States)

    Hewett, Timothy E; Myer, Gregory D; Zazulak, Bohdanna T


    Our purpose was to determine if females demonstrate decreased hamstrings to quadriceps peak torque (H/Q) ratios compared to males and if H/Q ratios increase with increased isokinetic velocity in both sexes. Maturation disproportionately increases hamstrings peak torque at high velocity in males, but not females. Therefore, we hypothesised that mature females would demonstrate decreased H/Q ratios compared to males and the difference in H/Q ratio between sexes would increase as isokinetic velocity increased. Studies that analysed the H/Q ratio with gravity corrected isokinetic strength testing reported between 1967 and 2004 were included in our review and analysis. Keywords were hamstrings/quadriceps, isokinetics, peak torque and gravity corrected. Medline and Smart databases were searched combined with cross-checked bibliographic reference lists of the publications to determine studies to be included. Twenty-two studies were included with a total of 1568 subjects (1145 male, 423 female). Males demonstrated a significant correlation between H/Q ratio and isokinetic velocity (R=0.634, pratio at the lowest angular velocity (47.8+/-2.2% at 30 degrees /s) compared to the highest velocity (81.4+/-1.1% at 360 degrees /s, pratio and isokinetic velocity (R=0.065, p=0.77) or a change in relative hamstrings strength as the speed increased (49.5+/-8.8% at 30 degrees /s; 51.0+/-5.7% at 360 degrees /s, p=0.84). Gender differences in isokinetic H/Q ratios were not observed at slower angular velocities. However, at high knee flexion/extension angular velocities, approaching those that occur during sports activities, significant gender differences were observed in the H/Q ratio. Females, unlike males, do not increase hamstrings to quadriceps torque ratios at velocities that approach those of functional activities.

  17. Standardized Patients to Teaching Medical Students about Intimate Partner Violence

    Directory of Open Access Journals (Sweden)

    Heron, Sheryl L


    Full Text Available Objective: To use 360-degree evaluations within an Observed Structured Clinical Examination (OSCE to assess medical student comfort level and communication skills with intimate partner violence (IPV patients.Methods: We assessed a cohort of fourth year medical students’ performance using an IPV standardized patient (SP encounter in an OSCE. Blinded pre- and post-tests determined the students’ knowledge and comfort level with core IPV assessment. Students, SPs and investigators completed a 360-degree evaluation that focused on each student’s communication and competency skills. We computed frequencies, means and correlations.Results: Forty-one students participated in the SP exercise during three separate evaluation periods. Results noted insignificant increase in students’ comfort level pre-test (2.7 and post-test (2.9. Although 88% of students screened for IPV and 98% asked about the injury, only 39% asked about verbal abuse, 17% asked if the patient had a safety plan, and 13% communicated to the patient that IPV is illegal. Using Likert scoring on the competency and overall evaluation (1, very poor and 5, very good, the mean score for each evaluator was 4.1 (competency and 3.7 (overall. The correlations between trainee comfort level and the specific competencies of patient care, communication skill and professionalism were positive and significant (p<0.05.Conclusion: Students felt somewhat comfortable caring for patients with IPV. OSCEs with SPs can be used to assess student competencies in caring for patients with IPV. [West J Emerg Med. 2010; 11(5:500-505.

  18. How to change organisational culture: Action research in a South African public sector primary care facility

    Directory of Open Access Journals (Sweden)

    Robert Mash


    Full Text Available Background: Organisational culture is a key factor in both patient and staff experience of the healthcare services. Patient satisfaction, staff engagement and performance are related to this experience. The department of health in the Western Cape espouses a values-based culture characterised by caring, competence, accountability, integrity, responsiveness and respect. However, transformation of the existing culture is required to achieve this vision. Aim: To explore how to transform the organisational culture in line with the desired values. Setting: Retreat Community Health Centre, Cape Town, South Africa. Methods: Participatory action research with the leadership engaged with action and reflection over a period of 18 months. Change in the organisational culture was measured at baseline and after 18 months by means of a cultural values assessment (CVA survey. The three key leaders at the health centre also completed a 360-degree leadership values assessment (LVA and had 6 months of coaching. Results: Cultural entropy was reduced from 33 to 13% indicating significant transformation of organisational culture. The key driver of this transformation was change in the leadership style and functioning. Retreat health centre shifted from a culture that emphasised hierarchy, authority, command and control to one that established a greater sense of cohesion, shared vision, open communication, appreciation, respect, fairness and accountability. Conclusion: Transformation of organisational culture was possible through a participatory process that focused on the leadership style, communication and building relationships by means of CVA and feedback, 360-degree LVA, feedback and coaching and action learning in a co-operative inquiry group.

  19. Immersive Virtual Moon Scene System Based on Panoramic Camera Data of Chang'E-3 (United States)

    Gao, X.; Liu, J.; Mu, L.; Yan, W.; Zeng, X.; Zhang, X.; Li, C.


    The system "Immersive Virtual Moon Scene" is used to show the virtual environment of Moon surface in immersive environment. Utilizing stereo 360-degree imagery from panoramic camera of Yutu rover, the system enables the operator to visualize the terrain and the celestial background from the rover's point of view in 3D. To avoid image distortion, stereo 360-degree panorama stitched by 112 images is projected onto inside surface of sphere according to panorama orientation coordinates and camera parameters to build the virtual scene. Stars can be seen from the Moon at any time. So we render the sun, planets and stars according to time and rover's location based on Hipparcos catalogue as the background on the sphere. Immersing in the stereo virtual environment created by this imaged-based rendering technique, the operator can zoom, pan to interact with the virtual Moon scene and mark interesting objects. Hardware of the immersive virtual Moon system is made up of four high lumen projectors and a huge curve screen which is 31 meters long and 5.5 meters high. This system which take all panoramic camera data available and use it to create an immersive environment, enable operator to interact with the environment and mark interesting objects contributed heavily to establishment of science mission goals in Chang'E-3 mission. After Chang'E-3 mission, the lab with this system will be open to public. Besides this application, Moon terrain stereo animations based on Chang'E-1 and Chang'E-2 data will be showed to public on the huge screen in the lab. Based on the data of lunar exploration,we will made more immersive virtual moon scenes and animations to help the public understand more about the Moon in the future.

  20. Morphometric analysis of aqueous humor outflow structures with spectral-domain optical coherence tomography. (United States)

    Francis, Andrew W; Kagemann, Larry; Wollstein, Gadi; Ishikawa, Hiroshi; Folz, Steven; Overby, Darryl R; Sigal, Ian A; Wang, Bo; Schuman, Joel S


    To describe morphometric details of the human aqueous humor (AH) outflow microvasculature visualized with 360-degree virtual castings during active AH outflow in cadaver eyes and to compare these structures with corrosion casting studies. The conventional AH outflow pathways of donor eyes (n = 7) and eyes in vivo (n = 3) were imaged with spectral-domain optical coherence tomography (SD-OCT) and wide-bandwidth superluminescent diode array during active AH outflow. Digital image contrast was adjusted to isolate AH microvasculature, and images were viewed in a 3D viewer. Additional eyes (n = 3) were perfused with mock AH containing fluorescent tracer microspheres to compare microvasculature patterns. Observations revealed components of the conventional outflow pathway from Schlemm's canal (SC) to the superficial intrascleral venous plexus (ISVP). The superficial ISVP in both our study and corrosion casts were composed of interconnected venules (10-50 μm) forming a hexagonal meshwork. Larger radial arcades (50-100 μm) drained the region nearest SC and converged with larger tortuous vessels (>100 μm). A 360-degree virtual casting closely approximated corrosion casting studies. Tracer studies corroborated our findings. Tracer decorated several larger vessels (50-100 μm) extending posteriorly from the limbus in both raw and contrast-enhanced fluorescence images. Smaller tracer-labeled vessels (30-40 μm) were seen branching between larger vessels and exhibited a similar hexagonal network pattern. SD-OCT is capable of detailed morphometric analysis of the conventional outflow pathway in vivo or ex vivo with details comparable to corrosion casting techniques.

  1. Development of scanning holographic display using MEMS SLM (United States)

    Takaki, Yasuhiro


    Holography is an ideal three-dimensional (3D) display technique, because it produces 3D images that naturally satisfy human 3D perception including physiological and psychological factors. However, its electronic implementation is quite challenging because ultra-high resolution is required for display devices to provide sufficient screen size and viewing zone. We have developed holographic display techniques to enlarge the screen size and the viewing zone by use of microelectromechanical systems spatial light modulators (MEMS-SLMs). Because MEMS-SLMs can generate hologram patterns at a high frame rate, the time-multiplexing technique is utilized to virtually increase the resolution. Three kinds of scanning systems have been combined with MEMS-SLMs; the screen scanning system, the viewing-zone scanning system, and the 360-degree scanning system. The screen scanning system reduces the hologram size to enlarge the viewing zone and the reduced hologram patterns are scanned on the screen to increase the screen size: the color display system with a screen size of 6.2 in. and a viewing zone angle of 11° was demonstrated. The viewing-zone scanning system increases the screen size and the reduced viewing zone is scanned to enlarge the viewing zone: a screen size of 2.0 in. and a viewing zone angle of 40° were achieved. The two-channel system increased the screen size to 7.4 in. The 360-degree scanning increases the screen size and the reduced viewing zone is scanned circularly: the display system having a flat screen with a diameter of 100 mm was demonstrated, which generates 3D images viewed from any direction around the flat screen.

  2. NASA's Next Generation Sunphotometer for Ground-based Remote Sensing Applications (United States)

    Shu, Peter K.; Miko, Laddawan; Bly, Vince T.; Chiao, Meng P.; Jones, Hollis H.; Kahle, Duncan M.


    Atmospheric aerosol concentrations and their optical properties, in terms of which cause differential warming/cooling effects in the atmosphere and on the surface, constitute one of the largest sources of uncertainty in current assessments and predictions of global climatic change. This is especially true over the regions of bright-reflecting surface, such as desert and urban areas. Under the name of AERONET since the 90's, Cimel's sunphotometers have been deployed worldwide as the standard instrument for aerosol monitoring network, developed to support NASA, CNES, and NASDA's Earth satellite systems. PREDE's skyradiometers, as deployed in SKYNET, serve the similar role. One of the key ingredients for achieving accurate aerosol retrievals from satellite observations is comprehensive understanding of surface spectral BRF's (Bidirectional Reflectance Factors), defined as a ratio of radiance measurements reflected from a targeted surface and from a spectral-angular featureless referencing plate. Although the weather-resistant, automatic, sun/sky-scanning spectroradiometers enable Frequent measurements of atmospheric aerosol optical properties and precipitable water at remote sites, they are too slow for surface BRF measurements (20-25 seconds per 360 degree scan, in addition to filter wheel rotation time). We have designed a next generation sun photometer whose sensor head has no moving parts. A dedicated detector for each channel enables 12 simultaneous measurements ranging from the UV (380 nm) to shortwave-IR (2.13 micron) regions. The scan platform will be capable of traveling 360 degrees in about 6 seconds. This is sufficient to finish a BRDF scan every 30 degrees in azimuth and 15 degrees in elevation in less than 4 minutes. More details about this instrument will be presented, together with its applications to the aerosol and trace gas studies. The current plan for this instrument is to deploy during the EAST-AIRE (East Asian Study of Tropospheric Aerosols: an

  3. SU-E-T-153: Burst-Mode Modulated Arc Therapy with Flattening-Filter-Free Beams Versus Flattening-Filtered Beams

    Energy Technology Data Exchange (ETDEWEB)

    Kainz, K; Lawton, C; Li, X [Medical College of Wisconsin, Milwaukee, WI (United States)


    Purpose: To compare the dosimetry and delivery of burst-mode modulated arc radiotherapy using flattening-filter-free (FFF) and flattening-filtered (FF) beams. Methods: Burst-mode modulated arc therapy (mARC, Siemens) plans were generated for six prostate cases with FFF and FF beam models, using the Elekta Monaco v. 5.00 planning system. One 360-degree arc was used for five cases, and for one case two 360-degree coplanar arcs were used. The maximum number of optimization points (OPs) per arc was set to 91, and OPs with less than 4 MU were disregarded. All plans were delivered on the Siemens Artiste linear accelerator with 6MV FF (300 MU/min) and comparable-energy FFF (2000 MU/min, labeled as 7UF) beams. Results: For all cases studied, the plans with FFF beams exhibited DVHs for the PTV, rectum, and bladder that were nearly identical to those for the plans with FF beams. The FFF plan yielded reduced dose to the right femoral head for 5 cases, and lower mean dose to the left femoral head for 4 cases. For all but the two-arc case, the FFF and FF plans resulted in an identical number of segments. The total number of MUs was slightly lower for the FF plans for five cases. The total delivery time per fraction was substantially lower for the FFF plans, ranging from 25 to 50 percent among all cases, as compared to the FF plans. Conclusion: For mARC plans, FFF and FF beams provided comparable PTV coverage and rectum and bladder sparing. For the femoral heads, the mean dose was slightly lower in most cases when using the FFF beam. Although the flat beam plans typically required slightly fewer MUs, FFF beams required substantially less time to deliver a plan of similar quality. This work was supported by Siemens Medical Solutions and the MCW Cancer Center Fotsch Foundation.

  4. Pyrolytic transformation from polydihydrosilane to hydrogenated amorphous silicon film

    Energy Technology Data Exchange (ETDEWEB)

    Masuda, Takashi, E-mail: [Japan Science and Technology Agency, ERATO, Shimoda Nano-Liquid Process Project, 2-13 Asahidai, Nomi, Ishikawa, 923-1211 (Japan); Matsuki, Yasuo [Japan Science and Technology Agency, ERATO, Shimoda Nano-Liquid Process Project, 2-13 Asahidai, Nomi, Ishikawa, 923-1211 (Japan); Yokkaichi Research Center, JSR Corporation, 100 Kawajiri-cho, Yokkaichi, Mie, 510-8552 (Japan); Shimoda, Tatsuya [Japan Science and Technology Agency, ERATO, Shimoda Nano-Liquid Process Project, 2-13 Asahidai, Nomi, Ishikawa, 923-1211 (Japan); School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292 (Japan)


    The fabrication of thin film silicon devices based on solution processes rather than on conventional vacuum processes is of substantial interest since cost reductions may result. Using a solution process, we coated substrates with polydihydrosilane solution and studied the pyrolytic transformation of the material into hydrogenated amorphous silicon (a-Si:H). From thermal gravimetry and differential thermal analysis data a significant reduction in weight of the material and a construction of Si-Si bonds are concluded for the pyrolysis temperature T{sub p} = 270 to 360 Degree-Sign C. The appearance of amorphous silicon phonon bands in Raman spectra for films prepared at T{sub p} {>=} 330 Degree-Sign C suggests the construction of a three-dimensional amorphous silicon network. Films prepared at T{sub p} {>=} 360 Degree-Sign C exhibit a hydrogen content near 10 at.% and an optical gap near 1.6 eV similar to device-grade vacuum processed a-Si:H. However, the infrared microstructure factor, the spin density, and the photosensitivity require significant improvements. - Highlights: Black-Right-Pointing-Pointer We fabricate hydrogenated amorphous silicon (a-Si:H) films by a solution process. Black-Right-Pointing-Pointer The a-Si:H films are prepared by pyrolytic transformation in polysilane solution. Black-Right-Pointing-Pointer We investigate basic properties in relation to the pyrolysis temperature. Black-Right-Pointing-Pointer Raman spectra, hydrogen content, and optical gap are similar to device-grade a-Si:H. Black-Right-Pointing-Pointer Microstructure factor, spin density, and photoconductivity show poor quality.

  5. PREFACE: The Irago Conference 2012 (United States)

    Sandhu, Adarsh; Okada, Hiroshi


    The Irago Conference 2012 - 360 degree outlook on critical scientific and technological challenges for a sustainable society Organized by the Electronics-Inspired Interdisciplinary Research Institute (EIIRIS) at Toyohashi University of Technology, the Irago Conference, held recently (15-16 November) in Aichi, Japan, aimed to enhance mutual understanding between scientists, engineers and policymakers. Over 180 participants tackled topics ranging from energy and natural resources to public health and disaster prevention. The 360-degree outlook of the conference impressed speakers and guests. ''This conference has been extremely informative,'' noted Robert Gellar from the University of Tokyo. ''A unique conference with experts from a range of backgrounds,'' agreed Uracha Ruktanonchai from the National Nanotechnology Center (NANOTEC) in Thailand. Similarly, G P Li, professor of electrical engineering and computer science at the University of California Irvine commented that he had been ''able to think the unthinkable'' as a range of topics came together. The conference was streamed live on Ustream to ensure that researchers from across the world could benefit from thought-provoking presentations examining global issues such as energy, disaster mitigation and nanotechnology. ''This was wonderful,'' said Oussama Khatib from Stanford University, ''A good recipe of speakers from such a range of backgrounds.'' Manuscripts submitted to the organizers were peer-reviewed, and the papers in this proceedings were accepted for Journal of Physics: Conference Series. In addition to the formal speaker programme, graduate-student sessions provided a platform for graduate students to describe their latest findings as oral presentations. A series of excursions to relevant locations, such as the Tahara megasolar region under construction and a local car-manufacturing factory, gave participants the opportunity to further consider practical applications of their research in industry

  6. How to change organisational culture: Action research in a South African public sector primary care facility

    Directory of Open Access Journals (Sweden)

    Robert Mash


    Full Text Available Background: Organisational culture is a key factor in both patient and staff experience of the healthcare services. Patient satisfaction, staff engagement and performance are related to this experience. The department of health in the Western Cape espouses a values-based culture characterised by caring, competence, accountability, integrity, responsiveness and respect. However, transformation of the existing culture is required to achieve this vision. Aim: To explore how to transform the organisational culture in line with the desired values. Setting: Retreat Community Health Centre, Cape Town, South Africa. Methods: Participatory action research with the leadership engaged with action and reflection over a period of 18 months. Change in the organisational culture was measured at baseline and after 18 months by means of a cultural values assessment (CVA survey. The three key leaders at the health centre also completed a 360-degree leadership values assessment (LVA and had 6 months of coaching. Results: Cultural entropy was reduced from 33 to 13% indicating significant transformation of organisational culture. The key driver of this transformation was change in the leadership style and functioning. Retreat health centre shifted from a culture that emphasised hierarchy, authority, command and control to one that established a greater sense of cohesion, shared vision, open communication, appreciation, respect, fairness and accountability. Conclusion: Transformation of organisational culture was possible through a participatory process that focused on the leadership style, communication and building relationships by means of CVA and feedback, 360-degree LVA, feedback and coaching and action learning in a co-operative inquiry group.

  7. Stereoscopic Three-Dimensional Images of an Anatomical Dissection of the Eyeball and Orbit for Educational Purposes

    Directory of Open Access Journals (Sweden)



    Full Text Available The purpose of this study was to develop a series of stereoscopic anatomical images of the eye and orbit for use in the curricula of medical schools and residency programs in ophthalmology and other specialties. Layer-by-layer dissection of the eyelid, eyeball, and orbit of a cadaver was performed by an ophthalmologist. A stereoscopic camera system was used to capture a series of anatomical views that were scanned in a panoramic three-dimensional manner around the center of the lid fissure. The images could be rotated 360 degrees in the frontal plane and the angle of views could be tilted up to 90 degrees along the anteroposterior axis perpendicular to the frontal plane around the 360 degrees. The skin, orbicularis oculi muscle, and upper and lower tarsus were sequentially observed. The upper and lower eyelids were removed to expose the bulbar conjunctiva and to insert three 25-gauge trocars for vitrectomy at the location of the pars plana. The cornea was cut at the limbus, and the lens with mature cataract was dislocated. The sclera was cut to observe the trocars from inside the eyeball. The sclera was further cut to visualize the superior oblique muscle with the trochlea and the inferior oblique muscle. The eyeball was dissected completely to observe the optic nerve and the ophthalmic artery. The thin bones of the medial and inferior orbital wall were cracked with a forceps to expose the ethmoid and maxillary sinus, respectively. In conclusion, the serial dissection images visualized aspects of the local anatomy specific to various procedures, including the levator muscle and tarsus for blepharoptosis surgery, 25-gauge trocars as viewed from inside the eye globe for vitrectomy, the oblique muscles for strabismus surgery, and the thin medial and inferior orbital bony walls for orbital bone fractures.





    ACh es el más estudiado. Además de su acción reguladora de la motilidad gastrointestinal, también está implicada en el transporte de agua y electrolitos a través de la mucosa intestinal (Hubel, 1985). En cuanto a la motilidad, la liberación de ACh desde las aferencias vagales estimula la contracción de la pared intestinal, bien a través de receptores muscarínicos (subtipos M2 y M3) localizados en las células musculares lisas (Abrams et al., 2006), o de receptores nicotínicos presentes en l...

  9. Performance of the lead/liquid argon shower counter system of the mark II detector at SPEAR

    CERN Document Server

    Abrams, G S; Breidenbach, M; Briggs, D D; Carithers, W C; Dieterle, W E; Dorfan, J M; Eaton, M W; Hanson, G; Hitlin, D G; Jenni, Peter; Lankford, A J; Lüth, V; Pang, C Y; Vella, E N


    The shower counter system of the SLAC-LBL Mark II detector is a large lead-liquid argon system of the type pioneered by Willis and Radeka (1974); however, it differs in most details and is much larger than other such detectors currently in operation. It contains, for example, 8000 liters of liquid argon and 3000 channels of low noise electronics, which is about eight times the size of the system of Willis et al. in the CERN ISR. The authors report, with little reference to design, on the operation and performance of the Mark II system during approximately a year and a half of operation at the Stanford Linear Accelerator Center's e/sup +/-e/sup -/ facility, SPEAR. The design and construction of the system have previously been described, Abrams et al. (1978) and a detailed discussion of all aspects-design, construction, operation, and performance-is in preparation. (8 refs).

  10. Hallucinogens as hard science: the adrenochrome hypothesis for the biogenesis of schizophrenia. (United States)

    Mills, John A


    Working in a psychiatrically innovative environment created by the Government of Saskatchewan, Canada, Abram Hoffer and Humphry F. Osmond enunciated the adrenochrome hypothesis for the biogenesis of schizophrenia in 1952, slightly later proposing and, apparently, demonstrating, in a double-blind study, that the symptoms of the illness could be reversed by administering large doses of niacin. After placing the hypothesis within its ideological framework, the author describes its emergence and elaboration and discusses the empirical evidence brought against it. Hoffer's idiosyncratic diagnostic procedures, especially his creation and use of a supposed biochemical marker for schizophrenia, are examined. The author argues that Hoffer's conceptualization of schizophrenia, as well as his treatment approach, depended on a tautology. Following David Healy, the author treats the adrenochrome hypothesis as a version of a transmethylation theory, thus incorporating it into mainstream psychopharmacology.

  11. Market Research and Socio-Political Consciousness in the Twentieth Century

    DEFF Research Database (Denmark)

    Schwarzkopf, Stefan


    Purpose – This paper investigates the case of the eminent British market researcher and social scientist Mark Alexander Abrams (1906 – 1994). Abrams’ career as a researcher spanned the six decades between the late 1920s and the late 1980s, and it bridged the gap between commercial market...... and consumer research on the one side and governmental social research on the other. By focusing on Abrams’ research strategies and career moves over these six decades, the paper establishes an alternative historical narrative to those that privilege the impact of capitalist market structures on the making...... of marketing as a professional field and academic discipline in the twentieth century. Design/methodology/approach – Based on archival research, the paper firstly establishes the biographical details of Abrams’ life and work. Secondly, the paper uses methodological and theoretical tools of historical sociology...

  12. The musical identities of Danish music therapy students

    DEFF Research Database (Denmark)

    Bonde, Lars Ole


    In the music therapy masters program at Aalborg University (Denmark) Music and Identity is a short, intensive course, based on a musical autobiography written by each participating student. Since 1999 almost 100 students have written a narrative of their musical life story. This article will focus...... on contributions from students participating from 2010-12 (n=21). Musical autobiographies have been analyzed (a) using the theoretical model of Even Ruud (1997, 1998), (b) as thematic analysis (Braun & Clark 2006), (c) using RepGrid, a qualitative research methodology based on George Kelly’s Personal Construct...... Theory (Abrams & Meadows 2005). Patterns of identity construction are presented, and the roles and functions of music in different stages of life discussed, including the self-reported influence of music on the students' health....

  13. Nationalism, Immigration and the Dynamics of Language Evolution

    CERN Document Server

    Rocha, André Barreira da Silva


    I study the interplay between language competition and ideology struggle in a country where there is a native high-status language and a low-status language spoken by immigrants. Language transition is governed by a three-state model similar to the Minett-Wang (2008) and the Heinsalu et al. (2014) models. I introduce the novelty that, among natives, an ideological struggle exists between a group of nationalists and a group of pro-immigrants, thus a two-state model as in Abrams-Strogatz (2003). When bilingualism emerges as an equilibrium, there might be a completely segregated society with monolingual immigrants and monolingual nationalistic natives, thus an undesired outcome contrasting with the widespread literature. Removing ideology struggle, bilingualism is never stable, thus results in Heinsalu et al. (2014) are solely due to the way conversion rate constants are defined in their model. If language status is explicitly defined in the model, bilingualism becomes doomed in the long run.

  14. Individual versus collective responses to membership in a low-status group: the effects of stability and individual ability. (United States)

    Boen, F; Vanbeselaere, N


    To test predictions of social identity theory (SIT; M. A. Hogg & D. Abrams, 1988; H. Tajfel & J. C. Turner, 1979) and the 5-stage model (FSM; D. M. Taylor & D. J. McKirnan, 1984) concerning reactions to membership in a low-status group, the authors led 112 pupils to believe that another (anonymous) class outperformed their class. In an overall permeable and legitimate intergroup context, the authors manipulated the stability of the low group status and the individual ability of the group members. Contrary to SIT and FSM, the pupils generally favored collective normative action. Individual mobility was preferred only by group members, especially boys, with high individual ability who thought that the low status of their group was stable. The results support FSM assumptions (a) that individual ability is a powerful determinant of intergroup behavior but (b) that one should consider its impact in combination with perceived stability.

  15. Necrotizing sialometaplasia: Report of 2 cases

    Energy Technology Data Exchange (ETDEWEB)

    Nah, Kyung Soo; Cho, Bong Hae; Jung, Yun Hoa [Pusan National Univ. College of Dentistry, Busan (Korea, Republic of)


    Necrotizing sialometaplasia (NS) was defined by Abrams et al. in 1973 as a reactive necrotizing inflammatory process involving minor salivary glands of the hard palate. Before that recognition, many patients with this condition had been improperly treated because of its clinical and histologic resemblance to malignancy such as mucoepidermoid carcinoma and squamous cell carcinoma. We report two cases of necrotizing sialometaplasia. One case involved a 58-year-old male who had an ulcerative palatal lesion exposing underlying bone which has the typical features of the above mentioned condition. Another case involved a 59-year-old male who developed a necrotizing sialometaplasia in association with a dome-shaped palatal swelling which was proves as an adenoid cystic carcinoma after operation biopsy.

  16. 视频破"格":Video 2.0时代

    Institute of Scientific and Technical Information of China (English)



    @@ 迈克尔·戴尔(Michael Dale)和埃布拉姆·斯特恩(Abram Stern)当时是加州大学圣克鲁兹分校数字媒体艺术专业的研究生,2005年,他俩觉得,将美国国会的演讲视频进行混合重制会是件非常有趣的事情.他们的初衷很具艺术性;比如,斯特恩的想法是,编辑一段参议员的演讲视频,去除所有内容,只保留其中的代词.

  17. New Books

    Institute of Scientific and Technical Information of China (English)

    林琪香; 张琛; 徐子豪


    <正>《The Third Teacher》作者:OWP/P Architects、VS Furniture、Bruce Mau Design出版:Abrams(美国)查询:书得起("孩子随时随地都在学习,不管是街上或课室里、从朋辈或老师身上;电视、互联网、书本通通都是他们的学习工具。有时,孩子也学习到他们不想学习的,例如恐惧或信任、合群与孤立,但他们就是会学习——那是他们的基因。"美国俄亥俄州的Oberlin College艺术学院的教授David W.Orr在《The ThirdTeacher》的序言中如是说。

  18. 经皮胸膜活检对不明原因胸腔积液的诊断价值

    Institute of Scientific and Technical Information of China (English)



      目的:探讨经皮胸膜活检对不明原因胸腔积液的诊断价值.方法:采用改良式 Abram 针对58例不明原因胸腔积液患者行经皮胸膜活检术,观察其阳性率.结果:46例取得阳性结果,阳性率为79.3%.其中结核性36例,占62.1%;肺癌10例,占17.2%.结论:经皮胸膜活检术检查安全,操作简单,阳性率较高,可作为不明原因胸腔积液诊断的首选方法.

  19. Ciudad y campo en la Europa medieval

    Directory of Open Access Journals (Sweden)

    Angus MACKAY


    Full Text Available Según el Profesor Abrams, "hoy en día una de las aspiraciones de la historiografía y sociología urbana puede ser la de eliminar el concepto de la ciudad" l. Tal aspiración, claro está, no la debemos relacionar con el estudio de una ciudad o villa dentro de un contexto excesivamente limitado2. Se trata más bien de un nivel donde los historiadores, sociólogos y antropólogos intentan analizar la tendencia secular de "la ciudad" como concepto abstracto —de teorías basadas en "la hipótesis plausible de que la ciudad como tal, o la calidad de urbanismo que se puede abstraer de la ciudad, tiene que ser una realidad estructural-social independiente y un factor o variable decisivo en el proceso del cambio socio-histórico"

  20. Exploring the Dialectical Space: A Brief History of The Psychoanalytic Study of the Child. (United States)

    Abrams, Samuel


    Abrams, currently the longest serving editor of The Psychoanalytic Study of the Child, offers his views of emerging models and themes in the understanding of children, which has characterized The PSOC since its inception in 1945. In his view, the first of its published papers, Hartmann and Kris's "The Genetic Approach in Psychoanalysis," set the stage for examining innovative ways to view the growth of the mind in general and the psychological development of children in particular. In his judgment, many of its published papers have highlighted expectable dispositional discontinuities as well as recognizable continuities interacting with a varying and sometimes unexpected set of environment circumstances. That interaction occurs within a dialectical space that contributes its own unique influences. This investigative trend, scattered throughout its nearly seventy-year history, may reflect the recognition for the need for a different foundational theory for our discipline or perhaps a new paradigm altogether.

  1. Schizophrenia, evolution and the borders of biology: on Huxley et al.'s 1964 paper in Nature. (United States)

    De Bont, Raf


    In October 1964, Julian Huxley, Ernst Mayr, Humphrey Osmond and Abram Hoffer co-published a controversial paper in Nature, in which they tried to explain the persistence of schizophrenia from an evolutionary perspective. This article will elucidate how the reputed authors composed this paper to make it a strong argument for biological psychiatry. Through a close reading of their correspondence, it will furthermore clarify the elements which remained unspoken in the paper, but which were elementary in its genesis. The first was the dominance of psychoanalytical theory in (American) psychiatry--a dominance which the authors wanted to break. The second was the ongoing discussion on the boundaries of biological determinism and the desirability of a new kind of eugenics. As such, the Huxley et al. paper can be used to study the central issues of psychiatry in a pivotal era of its history.

  2. Relationship Between Sleep Apnea and Cancer. (United States)

    Martínez-García, Miguel Ángel; Campos-Rodríguez, Francisco; Almendros, Isaac; Farré, Ramón


    In the light of relationships reported between hypoxemia (tissue hypoxia) and cancer, Abrams et al. concluded in 2008 that sleep apnea-hypopnea syndrome (SAHS) and its main consequence, intermittent hypoxia, could be related with increased susceptibility to cancer or poorer prognosis of a pre-existing tumor. This pathophysiological association was confirmed in animal studies. Two large independent historical cohort studies subsequently found that the degree of nocturnal hypoxia in patients with SAHS was associated with higher cancer incidence and mortality. This finding has been confirmed in almost all subsequent studies, although the retrospective nature of some requires that they be considered as hypothesis-generating only. The relationship between sleep apnea and cancer, and the pathophysiological mechanisms governing it, could be clarified in the near future in a currently on-going study in a large group of melanoma patients. Copyright © 2014 SEPAR. Published by Elsevier Espana. All rights reserved.

  3. Dose assessment for inhalation intakes in complex, energetic environments: experience from the US Capstone study. (United States)

    Guilmette, Raymond A; Parkhurst, Mary Ann


    Because of the lack of existing information needed to evaluate the risks from inhalation exposures to depleted uranium (DU) aerosols of US soldiers during the 1991 Persian Gulf War, the US Department of Defense funded an experimental study to measure the characteristics of DU aerosols created when Abrams tanks and Bradley fighting vehicles are struck with large-caliber DU penetrators, and a dose and risk assessment for individuals present in such vehicles. This paper describes some of the difficulties experienced in dose assessment modelling of the very complex DU aerosols created in the Capstone studies, e.g. high concentrations, heterogeneous aerosol properties, non-lognormal particle size distributions, triphasic in vitro dissolution and rapid time-varying functions of both DU air concentration and particle size. The approaches used to solve these problems along with example results are presented.

  4. Prediction of Flexural Strength of Concretes Containing Silica Fume and Styrene-Butadiene Rubber (SBR) with an Empirical Model (United States)

    Shafieyzadeh, M.


    In the flexural test, the theoretical maximum tensile stress at the bottom fiber of a test beam is known as the modulus of rupture or flexural strength. This work deals with the effects of Silica Fume and Styrene-Butadiene Latex (SBR) on flexural strength of concrete. An extensive experimentation was carried out to determine the effects of silica fume and SBR on flexural strength of concrete. Two water-binder ratios and several percentages of silica fume and SBR were considered. Abrams' Law, which was originally formulated for conventional concrete containing cement as the only cementations material, is used for prediction of flexural strength of these concretes. The aim of this work is to construct an empirical model to predict the flexural strength of silica fume-SBR concretes using concrete ingredients and time of curing in water. Also, the obtained results for flexural strength tests have been compared with predicted results.

  5. 艾布拉姆斯:最热门的准王牌

    Institute of Scientific and Technical Information of China (English)



    @@ J.J.艾布拉姆斯(J J Abrams)的一天看上去和他笔下的故事一样紧凑而富有悬念.在他到达《双重女间谍》(Alias)的工作室的半道上,被人在停车场截住,询问ABC正在播出的电视剧集;好不容易到工作间了,无数的电话追了过来,从服装到音乐,事无巨细,全都得听从艾布拉姆斯的决定;处理杂务的间隙,艾布拉姆斯还抽空和《谍中谍3》的女主角说戏、讨论剧情.

  6. Quantum Computing Resource Estimate of Molecular Energy Simulation

    CERN Document Server

    Whitfield, James D; Aspuru-Guzik, Alán


    Over the last century, ingenious physical and mathematical insights paired with rapidly advancing technology have allowed the field of quantum chemistry to advance dramatically. However, efficient methods for the exact simulation of quantum systems on classical computers do not exist. The present paper reports an extension of one of the authors' previous work [Aspuru-Guzik et al., Science {309} p. 1704, (2005)] where it was shown that the chemical Hamiltonian can be efficiently simulated using a quantum computer. In particular, we report in detail how a set of molecular integrals can be used to create a quantum circuit that allows the energy of a molecular system with fixed nuclear geometry to be extracted using the phase estimation algorithm proposed by Abrams and Lloyd [Phys. Rev. Lett. {83} p. 5165, (1999)]. We extend several known results related to this idea and present numerical examples of the state preparation procedure required in the algorithm. With future quantum devices in mind, we provide a compl...

  7. 西方传播法立法的基石--"思想市场"理论评析%The Cornerstone of Western Communication Law Legislation --An Analysis of the Theory of "Marketplace of Ideas"

    Institute of Scientific and Technical Information of China (English)



    在西方的传媒理论和传播法理论中,"思想市场"是一个相当重要的理论思想.这一概念最早是由美国大法官霍姆斯1919年在亚伯拉姆诉合众国(Abrams v.United Staes)一案中的反对意见中提出来的,这一思想在西方的哲学思想传统中颇有渊源.进入20世纪后,该理论受到了严厉的挑战,一种"市场失灵"理论模式应运而生.不过,自由主义仍然顽强地坚持着自己的理论传统.

  8. Compression Maps and Stable Relations

    CERN Document Server

    Price, Kenneth L


    Balanced relations were defined by G. Abrams to extend the convolution product used in the construction of incidence rings. We define stable relations,which form a class between balanced relations and preorders. We also define a compression map to be a surjective function between two sets which preserves order, preserves off-diagonal relations, and has the additional property every transitive triple is the image of a transitive triple. We show a compression map preserves the balanced and stable properties but the compression of a preorder may be stable and not transitive. We also cover an example of a stable relation which is not the compression of a preorder. In our main theorem we provide necessary and sufficient conditions for a finite stable relation to be the compression of a preorder.

  9. 本刊文后常见参考文献著录格式示例

    Institute of Scientific and Technical Information of China (English)


    1专著著录格式:主要责任者.题名[文献类型].其他责任者(例如翻译者).版本项(1版不著录).出版地:出版者,出版年:引文起页一止页.[1]Abrams W B,Beers M H,Berkow R.默克老年病手册[M].陈灏珠,王赞舜,刘厚钰,等,译.2版.北京:人民卫生出版社,1996:22-25.

  10. 当代西方文论视域下文学与影视的比较%Comparison on Literature with Film and Television from the Perspective of Contemporary Western Theory of Literature and Art

    Institute of Scientific and Technical Information of China (English)



    本文在M·H艾布拉姆斯教授的文学批评四要素理论框架下对文学与影视进行了具有针对性地比较,说明文学在电子图像时代具有独立的品格,是影视所不能代替的,文学不会终结。%Under the theoretical frame of Professor M. H. Abrams ' s four elements of literature criticism, this article compares literature with film and television with purpose, and illustrates that literature has its own characteristics in electronic image times, which can not be replaced by film and television, and it will not be terminated.

  11. Quantum Neural Networks

    CERN Document Server

    Gupta, S; Gupta, Sanjay


    This paper initiates the study of quantum computing within the constraints of using a polylogarithmic ($O(\\log^k n), k\\geq 1$) number of qubits and a polylogarithmic number of computation steps. The current research in the literature has focussed on using a polynomial number of qubits. A new mathematical model of computation called \\emph{Quantum Neural Networks (QNNs)} is defined, building on Deutsch's model of quantum computational network. The model introduces a nonlinear and irreversible gate, similar to the speculative operator defined by Abrams and Lloyd. The precise dynamics of this operator are defined and while giving examples in which nonlinear Schr\\"{o}dinger's equations are applied, we speculate on its possible implementation. The many practical problems associated with the current model of quantum computing are alleviated in the new model. It is shown that QNNs of logarithmic size and constant depth have the same computational power as threshold circuits, which are used for modeling neural network...

  12. The stem-loop luciferase assay for polyadenylation (SLAP) method for determining CstF-64-dependent polyadenylation activity. (United States)

    Hockert, J Andrew; Macdonald, Clinton C


    Polyadenylation is an essential cellular process in eukaryotic cells (Edmonds M and Abrams R, J Biol Chem 235, 1142-1149, 1960; Zhao J et al., Microbiol Mol Biol Rev 63, 405-445, 1999; Edmonds M, Progr Nucleic Acid Res Mol Biol 71, 285-389, 2002). For this reason, it has been difficult to examine the functions of specific polyadenylation proteins in vivo. Here, we describe a cell culture assay that allows structure-function experiments on CstF-64, a protein that binds to pre-mRNAs downstream of the cleavage site for accurate and efficient polyadenylation. We also demonstrate that the stem-loop luciferase assay for polyadenylation (SLAP) accurately reflects CstF-64-dependent polyadenylation. This assay could be easily adapted to the study of other important RNA-binding proteins in polyadenylation.

  13. The Logic of Reflection: Samuel Taylor Coleridge's "treatise on Logic" (United States)

    Land, Janet Sanders

    Though others discuss Coleridge's interest in science, light imagery, the phenomenon of reflection, and his references to Newton and Opticks,^1 this is the first study to examine Coleridge's art in terms of optics, its developing theories, and the nature-of-light debate. This study examines Coleridge's early predilection for visions, illusions, and the supernatural and demonstrates that he gradually shifts from the supernatural to the scientific aspects of "visions" and "illusions," concentrating on causes of illusions and the effects of their deceptive qualities rather than their mystical features. By the 1820's, his preoccupation with illusions had become an interest in optics, fueled, no doubt, by the increasing controversy of the nature-of-light debate and the number of advances in optics resulting from the efforts of its opponents to prove their theories. Tracing the development of the debate, its escalation in the early nineteenth century, and the formation of Coleridge's opinion concerning key issues of the debate, I outline the evolution of Coleridge's theory of reflection and examine the exposition of that theory in his treatise, Logic (1981). Finally, I analyze the relationship between the advances in optics and Coleridge's concepts of thought and knowledge and his notion of the mind as an instrument of knowledge. These ideas in turn, altered his opinions concerning the validity of knowledge resulting from philosophic debate, scientific experiment, and poetic exploration. ftn^1John Beer, "Coleridge and Wordsworth on Reflection," The Wordsworth Circle 20 (1989): 20-29; Coleridge the Visionary. London: Chatto and Windus, 1959; and Coleridge's Poetic Intelligence. London: Macmillan, 1977 and M. H. Abrams Natural Supernaturalism: Tradition and Revolution in Romantic Literature. New York: Norton, 1971; and "Coleridge's 'A Light in Sound': Science, Metascience, and Poetic Imagination." The Correspondent Breeze: Essays on English Romanticism. Eds. M. H. Abrams

  14. Interpretation of Dieter Rams Design Philosophy from Braun Products%从博朗产品诠释迪特尔·拉姆斯的设计哲学

    Institute of Scientific and Technical Information of China (English)



    According to Dieter Abrams lifetime design method as the research object, it discussed his design philosophy, from Braun electrical products design as the main line, elaborated the product design simple, delicate, perfect and noble, analyzed the design philosophy of how to integrate the rams in Braun products, products and how to serve for the life, for the public service, and served for the function requirements. The rams design created excellent Braun electrical and excellent managementsystem, on this foundation, put forward the design thought of Abrams affect apple and other modem product design application.%以迪特尔·拉姆斯一生的设计方法为研究对象,阐述了他的设计哲学思想,以博朗电器产品的造型设计为主,论述了产品设计的简约、细致、完美与高贵,分析拉姆斯的设计哲学如何融入在博朗的产品中,提出产品又是如何为生活、大众、功能服务的要求。通过拉姆斯的设计思想塑造出优秀的博朗电器以及出色的管理制度,在此基础上,拉姆斯的设计思想又如何影响到苹果等现代产品设计的应用。

  15. Pullout strength of pedicle screws with cement augmentation in severe osteoporosis: A comparative study between cannulated screws with cement injection and solid screws with cement pre-filling

    Directory of Open Access Journals (Sweden)

    Lee Yen-Chen


    Full Text Available Abstract Background Pedicle screws with PMMA cement augmentation have been shown to significantly improve the fixation strength in a severely osteoporotic spine. However, the efficacy of screw fixation for different cement augmentation techniques, namely solid screws with retrograde cement pre-filling versus cannulated screws with cement injection through perforation, remains unknown. This study aimed to determine the difference in pullout strength between conical and cylindrical screws based on the aforementioned cement augmentation techniques. The potential loss of fixation upon partial screw removal after screw insertion was also examined. Method The Taguchi method with an L8 array was employed to determine the significance of design factors. Conical and cylindrical pedicle screws with solid or cannulated designs were installed using two different screw augmentation techniques: solid screws with retrograde cement pre-filling and cannulated screws with cement injection through perforation. Uniform synthetic bones (test block simulating severe osteoporosis were used to provide a platform for each screw design and cement augmentation technique. Pedicle screws at full insertion and after a 360-degree back-out from full insertion were then tested for axial pullout failure using a mechanical testing machine. Results The results revealed the following 1 Regardless of the screw outer geometry (conical or cylindrical, solid screws with retrograde cement pre-filling exhibited significantly higher pullout strength than did cannulated screws with cement injection through perforation (p = 0.0129 for conical screws; p = 0.005 for cylindrical screws. 2 For a given cement augmentation technique (screws without cement augmentation, cannulated screws with cement injection or solid screws with cement pre-filling, no significant difference in pullout strength was found between conical and cylindrical screws (p >0.05. 3 Cement infiltration into the open cell of

  16. Highly-efficient all-dielectric Huygens' surface holograms (Conference Presentation) (United States)

    Chong, Katie; Wang, Lei; Staude, Isabelle; James, Anthony; Dominguez, Jason; Subramania, Ganapathi; Liu, Sheng; Decker, Manuel; Neshev, Dragomir N.; Brener, Igal; Kivshar, Yuri S.


    Optical metasurfaces have developed as a breakthrough concept for advanced wave-front. Key to these "designer metasurfaces"[1] is that they provide full 360 degree phase coverage and that their local phase can be precisely controlled. The local control of phase, amplitude and polarization on an optically thin plane will lead to a new class of flat optical components in the areas of integrated optics, flat displays, energy harvesting and mid-infrared photonics, with increased performance and functionality. However, reflection and/or absorption losses as well as low polarization-conversion efficiencies pose a fundamental obstacle for achieving high transmission efficiencies that are required for practical applications. A promising way to overcome these limitations is the use of metamaterial Huygens' surfaces [2-4], i.e., reflection-less surfaces that can also provide full 360 degree phase coverage in transmission. Plasmonic implementations of Huygens' surfaces for microwave [2] and the mid-infrared spectral range [3], where the intrinsic losses of the metals are negligible, have been suggested, however, these designs cannot be transferred to near-infrared or even visible frequencies because of the high dissipative losses of plasmonic structures at optical frequencies. Here, we demonstrate the first holographic metasurface utilizing the concept of all-dielectric Huygens' surfaces thereby achieving record transmission efficiencies of approximately 82% at 1477nm wavelength. Our low-loss Huygens' surface is realized by two-dimensional subwavelength arrays of loss-less silicon nanodisks with both electric and magnetic dipole resonances [4]. By controlling the intrinsic properties of the resonances, i.e. their relative electric and magnetic polarizabilities, quality factors and spectral position, we can design silicon nanodisks to behave as near-ideal Huygens' particles. This allows us to realize all-dielectric Huygens' surfaces providing full 360 degree phase coverage

  17. SU-E-T-581: A Comparative Study of Standard IMRT and VMAT Planning Techniques for Unilateral and Bilateral Head and Neck Irradiation

    Energy Technology Data Exchange (ETDEWEB)

    Pursley, J; Tishler, R B; Margalit, D N; Sher, D J; Damato, A L [Dana-Farber Cancer Institute/Brigham and Women' s Hospital, Boston, MA (United States); Harvard Medical School, Boston, MA (United States)


    Purpose: To compare dosimetric properties and monitor units (MU) of IMRT plans with several VMAT head and neck (H and N) plans. Methods: Seventeen unilateral H and N (UHN) and five bilateral H and N (BHN) patients initially treated with IMRT were replanned with VMAT. Several arc arrangements were studied for each patient: 1)for UHN, two 360° arcs, two 260° arcs, two 210° arcs, two 360° arcs with contralateral avoidance sectors, and 2)for BHN, two 360° arcs, two 360° arcs with bilateral avoidance sectors, two 360° arcs with bilateral avoidance sectors and a third arc limited to the upper neck. Optimization constraints were adjusted for each patient and plan. All plans were normalized to achieve the same highest-dose PTV coverage. Percent differences (IMRT-VMAT)/VMAT in MU, dose homogeneity (HI=maximum point dose/prescription dose), and organ-at-risk (OAR) metrics are reported and statistical significance evaluated (p<0.05; paired Student t-test). Results: Average reduction in MU with VMAT was 28% for UHN (p<0.0001) and 63% for BHN (p<0.0001). Average HI for UHN IMRT and 360° arc VMAT plans was 1.08 and for plans with arcs <360° average HI=1.10. Average HI for BHN IMRT was 1.07, for three-arc VMAT 1.08, and for two-arc VMAT 1.11. For UHN, two 210° arcs achieved lower contralateral parotid max (−2.6 Gy, p<0.02) and mean (−1.2 Gy, p=0.06) dose. For BHN two-arc plans, contralateral parotid mean dose increased (3.3 Gy, p<0.04) and larynx max dose increased (2.9 Gy, p<0.02) with no change in larynx mean dose. Conclusion: For UHN, 360degree arc VMAT consistently produced plans dosimetrically comparable to IMRT with the benefit of lower MU. VMAT with arcs <360degrees produced plans inferior to IMRT in dose homogeneity and without significantly improved OAR sparing. For BHN, three-arc plans were dosimetrically comparable to IMRT with lower MU, while two-arc plans were inferior to IMRT in HI and OAR dose. Research supported in part by a Kaye Family Award.

  18. The challenge of localizing vehicle backup alarms: Effects of passive and electronic hearing protectors, ambient noise level, and backup alarm spectral content

    Directory of Open Access Journals (Sweden)

    Khaled A Alali


    Full Text Available A human factors experiment employed a hemi-anechoic sound field in which listeners were required to localize a vehicular backup alarm warning signal (both a standard and a frequency-augmented alarm in 360-degrees azimuth in pink noise of 60 dBA and 90 dBA. Measures of localization performance included: (1 percentage correct localization, (2 percentage of right--left localization errors, (3 percentage of front-rear localization errors, and (4 localization absolute deviation in degrees from the alarm′s actual location. In summary, the data demonstrated that, with some exceptions, normal hearing listeners′ ability to localize the backup alarm in 360-degrees azimuth did not improve when wearing augmented hearing protectors (including dichotic sound transmission earmuffs, flat attenuation earplugs, and level-dependent earplugs as compared to when wearing conventional passive earmuffs or earplugs of the foam or flanged types. Exceptions were that in the 90 dBA pink noise, the flat attenuation earplug yielded significantly better accuracy than the polyurethane foam earplug and both the dichotic and the custom-made diotic electronic sound transmission earmuffs. However, the flat attenuation earplug showed no benefit over the standard pre-molded earplug, the arc earplug, and the passive earmuff. Confusions of front-rear alarm directions were most significant in the 90 dBA noise condition, wherein two types of triple-flanged earplugs exhibited significantly fewer front-rear confusions than either of the electronic muffs. On all measures, the diotic sound transmission earmuff resulted in the poorest localization of any of the protectors due to the fact that its single-microphone design did not enable interaural cues to be heard. Localization was consistently more degraded in the 90 dBA pink noise as compared with the relatively quiet condition of the 60 dBA pink noise. A frequency-augmented backup alarm, which incorporated 400 Hz and 4000 Hz components

  19. 三种型式轴封的摩擦功耗测定与比较%The Test and Comparison of the Friction Power Consumption of Shaft Seals in Three Different Types

    Institute of Scientific and Technical Information of China (English)

    徐静; 涂桥安; 孙见君; 刘士国; 陶丹萍


    摩擦功耗是评价轴封节能与否的重要指标.利用MMU -2摩擦磨损试验机对3种结构型式轴封即填料密封、机械密封和360度旋转式组合密封的摩擦功耗进行了测定.试验结果表明:3种型式轴封的摩擦功耗随转速的增大而增大,填料密封摩擦功耗最大,机械密封摩擦功耗次之,360度旋转式组合密封摩擦功耗最小;不同材料的填料密封的摩擦功耗不同,碳纤维填料密封和四氟填料密封摩擦功耗基本接近,并且远远低于芳纶填料密封.该结果为正确选择轴封提供了重要的参考依据.%The friction power consumption is an important basis to appraise whether the shaft seal can save energy. On the MMU-2 friction and wear test machine,the friction power consumption of shaft seals in three different types which are packing seal, mechanical seal and 360 degrees rotary combined seal was tested. The results indicate that the friction power consumption of all shaft seals increases with the rotational speed increasing. The friction power consumption of packing seal is the highest, and the friction power consumption of mechanical seal is higher than that of 360 degrees rotary combined seal. The friction power consumption of packing seals of different materials is different from each other. The friction power consumption of carbon fiber packing seal is nearly the same as that of PTFE packing seal and is far lower than that of ar amid fiber packing seal. The results provide an important basis to select shaft seal reasonably.

  20. Hardware Design of Head Movements Recognized System%头部动作识别系统的硬件设计

    Institute of Scientific and Technical Information of China (English)

    张海龙; 周威; 耿乙迦; 张先彪; 刘春杰


    介绍了一种用于残疾人的智能交互系统——头部动作识别系统的主体硬件框架,包括头部运动测量单元的设计,采用了三轴陀螺仪L3G4200D和三轴加速度传感器ADXL345.机械臂的执行器驱动单元设计,该部分采用MOSFET驱动,有电流反馈.机械臂结构设计,该部分采用线性执行器电动推杆,推力1500N,速度在2mm/s至60mm/s之间可控,行程200mm,机械臂底盘支持360度全向旋转,整体水平作用距离达1.2m,垂直作用距离1.0m,腕关节支持360度旋转,夹持机构开合行程30mm,可以应对一般家庭应用.为机械臂控制算法的工作提供了硬件平台.%Intelligent interactive system based on head movements recognized for disabled people is introduced in this paper.Head movement measurement module is designed with a 3-axis digital gyroscope L3G4200D and a 3-axis accelerometer ADXL345.Actuator of manipulator is driven by MOSFET.Motorized faders which is a kind of linear actuator is selected to drive the manipulator,the thrust of it can go up to 1500N,it can move between the speed of 2mm/s and 60mm/s controlled by MCU.The stroke can be as far as 200mm,the chassis of it can turn in 360 degrees.The level of the horizontal and vertical distance is 1.2m and 1.0m.the wrist also can turn in 360 degrees.The stroke of the clamping mechanism can be as far as 30mm.Generally speaking,it can qualified ordinary home use.Its feature satisfies the system need.The hardware design supplies control algorithm with a stable platform.

  1. Radar observations of the 2009 eruption of Redoubt Volcano, Alaska: Initial deployment of a transportable Doppler radar system for volcano-monitoring (United States)

    Hoblitt, R. P.; Schneider, D. J.


    centered on the volcano while NEXRAD scanned a full 360 degrees. The sector strategy scanned the volcano more frequently than the 360-degree strategy. Consequently, the USGS system detected event onset within less than a minute, while the NEXRAD required about 4 minutes. The observed column heights were as high as 20 km above sea level and compared favorably to those from NEXRAD. NEXRAD tracked ash clouds to greater distances than the USGS system. This experience shows that Doppler radar is a valuable complement to traditional seismic and satellite monitoring of explosive eruptions.

  2. OPAL Netlogo Land Condition Model (United States)


    estimate over- all training impact, may be used to estimate the number of “maneuver im- pact miles” ( MIMs ), the equivalent damage of one M1A2 traveling 1... MIM = maneuver impact mile V = vehicle type (Dimensionless) v = number of types of vehicles training in area for the week NumberV = number...generic indication of training intensity, quantified as the “average number of MIMs per training area,” which ranges from 1 to 3. Using methodologies

  3. Condylar asymmetry in children with juvenile idiopathic arthritis assessed by cone-beam computed tomography. (United States)

    Huntjens, Elisabeth; Kiss, Gabriel; Wouters, Carine; Carels, Carine


    The purpose of this study was to determine the degree of condylar asymmetry in children with juvenile idiopathic arthritis (JIA) using cone-beam computed tomography (CBCT) and analysis software. For 20 patients (14 girls and six boys; mean age 11.21 +/- 3.54 years), resultant cross-sectional images of the left and right temporomandibular joints (TMJs) were semi-automatically segmented, and exact registration of the right, with respect to the flipped left grey-level condyle, was obtained. Visual inspection of the volume images in 360 degree rotation showed a wide variety of condylar destruction patterns, ranging from small erosions within the cortex to almost complete deformation of the condylar head. Because segmentation was restricted to the delineation of the cortical region, possible changes in the deeper zones were not reproduced. Descriptive statistics [median and interquartile range (IQR)] and diagrams (frequency distribution) were used to assess the results. Initial analysis of condylar volume (including both flipped left and right) showed a median value for volume of 0.844 cm(3) (IQR 0.323), while the median value for volume difference between both condyles was 0.051 cm(3) (IQR 0.098). Analysis of the degree of asymmetry showed a median value of 26.18 per cent (IQR 14.46). Using the CBCT-based method, it was shown that condylar asymmetry was a common feature in children with JIA. The degree of asymmetry was variable, but significant in the majority of the subjects.

  4. On the performance of a high head Francis turbine at design and off-design conditions (United States)

    Aakti, B.; Amstutz, O.; Casartelli, E.; Romanelli, G.; Mangani, L.


    In the present paper, fully 360 degrees transient and steady-state simulations of a Francis turbine were performed at three operating conditions, namely at part load (PL), best efficiency point (BEP), and high load (HL), using different numerical approaches for the pressure-velocity coupling. The simulation domain includes the spiral casing with stay and guide vanes, the runner and the draft tube. The main target of the investigations is the numerical prediction of the overall performance of the high head Francis turbine model as well as local and integral quantities of the complete machine in different operating conditions. All results were compared with experimental data published by the workshop organization. All CFD simulations were performed at model scale with a new in-house, 3D, unstructured, object-oriented finite volume code within the framework of the open source OpenFOAM library. The novel fully coupled pressure-based solver is designed to solve the incompressible RANS- Equations and is capable of handling multiple references of frame (MRF). The obtained results show that the overall performance is well captured by the simulations. Regarding the local flow distributions within the inlet section of the draft-tube, the axial velocity is better estimated than the circumferential component.

  5. Modeling refractive metasurfaces in series as a single metasurface (United States)

    Toor, Fatima; Guneratne, Ananda C.


    Metasurfaces are boundaries between two media that are engineered to induce an abrupt phase shift in propagating light over a distance comparable to the wavelength of the light. Metasurface applications exploit this rapid phase shift to allow for precise control of wavefronts. The phase gradient is used to compute the angle at which light is refracted using the generalized Snell's Law. [1] In practice, refractive metasurfaces are designed using a relatively small number of phaseshifting elements such that the phase gradient is discrete rather than continuous. Designing such a metasurface requires finding phase-shifting elements that cover a full range of phases (a phase range) from 0 to 360 degrees. We demonstrate an analytical technique to calculate the refraction angle due to multiple metasurfaces arranged in series without needing to account for the effect of each individual metasurface. The phase gradients of refractive metasurfaces in series may be summed to obtain the phase gradient of a single equivalent refractive metasurface. This result is relevant to any application that requires a system with multiple metasurfaces, such as biomedical imaging [2], wavefront correctors [3], and beam shaping [4].

  6. Resonant biaxial 7-mm MEMS mirror for omnidirectional scanning (United States)

    Hofmann, U.; Aikio, M.; Janes, J.; Senger, F.; Stenchly, V.; Weiss, M.; Quenzer, H.-J.; Wagner, B.; Benecke, W.


    Low-cost automotive laser scanners for environment perception are needed to enable the integration of advanced driver assistant systems (ADAS) into all automotive vehicle segments, a key to reducing the number of traffic accidents on roads. An omnidirectional 360 degree laser scanning concept has been developed based on combination of an omnidirectional lens and a biaxial large aperture MEMS mirror. This omnidirectional scanning concept is the core of a small sized low-cost time-of-flight based range sensor development. This paper describes concept, design, fabrication and first measurement results of a resonant biaxial 7mm gimbal-less MEMS mirror that is electrostatically actuated by stacked vertical comb drives. Identical frequencies of the two resonant axes are necessary to enable the required circle scanning capability. A tripod suspension was chosen since it allows minimizing the frequency splitting of the two resonant axes. Low mirror curvature is achieved by a thickness of the mirror of more than 500 μm. Hermetic wafer level vacuum packaging of such large mirrors based on multiple wafer bonding has been developed to enable to achieve a large mechanical tilt angle of +/- 6.5 degrees in each axis. The 7mm-MEMS mirror demonstrates large angle circular scanning at 1.5kHz.

  7. Synthesis and Characterization of Thermally Stable Photocurable Polymer with Cyclohexane Moiety. (United States)

    Kim, Dong Mm; Yu, Seong Hun; Lee, Jun Young


    Photocurable polymers with high transparency and thermal stability were synthesized by reaction between a commercial epoxy resin (NC9110) containing cyclohexane moiety and various kinds of cinnamic acids such as trans-cinnamic acid (CA), 3-hydroxy-trans-cinnamic acid (HCA) and 4-methoxy-trans-cinnamic acid (MCA). The photocurable polymers were synthesized with equal equivalent weight ratio of epoxy and cinnamate group. The chemical structures of the synthesized polymers were confirmed by 1H-NMR and FT-IR spectroscopies. Optical transmittance and thermal stability of the photocured polymers were investigated using UV-Visible spectroscopy and thermogravimetric analysis (TGA), respectively. It was confirmed that the polymers could form thin films with very smooth surface and could be efficiently cured by UV irradiation. It was also found that the polymer after curing showed a good thermal stability and optical transmittance. There was no significant transmittance change after heat treatment at 250 degrees C for 1 h and showed no noticeable weight loss up to 360 degrees C.

  8. Effects of callosal agenesis on rotational side preference of BALB/cCF mice in the free swimming test. (United States)

    Filgueiras, Cláudio C; Manhães, Alex C


    In order to test the hypothesis that the ontogenetic development of the corpus callosum is related to the establishment of behavioral laterality, the rotatory behavior in the free swimming test was studied in male mice of the BALB/cCF strain, in which approximately 20% of the animals present total or partial callosal agenesis. All animals were submitted to three sessions of the free-swimming rotatory test in three different sessions (diameter of the recipient = 21 cm; session duration = 5 min; inter-test interval = 48 h). The number and direction of the 30 and 360 degrees turns were recorded. Animals were classified as side-consistent turners (to the right or to the left) when they did not change their preferred side of rotation in all three sessions and in both turning units. In general our results suggested that acallosal animals present more pronounced laterality than normal ones. In the acallosal group, the percentage of consistent turners was significantly higher than that of non-consistent turners. The percentage of animals that presented strong turning preferences in the acallosal group was higher than in the normal group. In first session, the acallosal group presented a higher average number of turns to preferred side than the normal group. Taken together, our results constitute an endorsement to the hypothesis that the normal development of the corpus callosum is related to the establishment of cerebral laterality.

  9. Accelerated IGA/SCC testing of Alloy 600 in contaminated PWR environments

    Energy Technology Data Exchange (ETDEWEB)

    Miglin, B.P.; Sarver, J.M. [Babcock & Wilcox R& D Division, Alliance, OH (United States); Aoki, K. [NFI, Osaka (Japan); Koch, D.W. [Babcock & Wilcox Nuclear Services, Lynchburg, VA (United States); Takamatsu, H. [Kansai Electric, Osaka (Japan)


    An accelerated corrosion test (360{degrees}C for 2000 hrs) was performed on C-ring specimens machined from one heat of Alloy 600 tubing in the mill-annealed condition. The specimens were exposed to secondary-side pressurized-water-reactor (PWR) solutions contaminated with lead, sulfur, silicon, and a combination of these contaminants. Where possible, MULTEQ calculations were performed to determine the chemical concentrations so that a constant elevated-temperature pH of 4.5 was achieved. This test was designed to examine the ability of these contaminants to cause intergranular attack and/or stress corrosion in stressed Alloy 600 tubing. The results from this test demonstrated that under the test conditions used, lead-contaminated PWR secondary water induces and propagates intergranular attack (IGA) and stress corrosion cracking (SCC) in Alloy 600. Attack was intergranular; the degree of attack did not vary in the liquid or vapor portions of the test environments. Although attack was more severe at higher stresses, significant attack was observed in samples stressed to the typical operating stress. Solutions of only sulfur and only silicon displayed no initiation or propagation of either IGA or SCC. However, the solution containing all three contaminants caused attack with identical morphology to that observed in the lead-contaminated solution.

  10. The large longitudinal spread of solar energetic particles during the January 17, 2010 solar event

    CERN Document Server

    Dresing, Nina; Klassen, Andreas; Heber, Bernd; Kartavykh, Yulia; Dröge, Wolfgang


    We investigate multi-spacecraft observations of the January 17, 2010 solar energetic particle event. Energetic electrons and protons have been observed over a remarkable large longitudinal range at the two STEREO spacecraft and SOHO suggesting a longitudinal spread of nearly 360 degrees at 1AU. The flaring active region, which was on the backside of the Sun as seen from Earth, was separated by more than 100 degrees in longitude from the magnetic footpoints of each of the three spacecraft. The event is characterized by strongly delayed energetic particle onsets with respect to the flare and only small or no anisotropies in the intensity measurements at all three locations. The presence of a coronal shock is evidenced by the observation of a type II radio burst from the Earth and STEREO B. In order to describe the observations in terms of particle transport in the interplanetary medium, including perpendicular diffusion, a 1D model describing the propagation along a magnetic field line (model 1) (Dr\\"oge, 2003)...

  11. A high temperature piezoelectric ceramic: (1-x)(Bi0.9La0.1)FeO(3-x)PbTiO3 crystalline solutions. (United States)

    Chen, Jianguo; Qi, Yufa; Shi, Guiyang; Yu, Shengwen; Cheng, Jinrong


    (1-x)(Bi(0.9)La(0.1))FeO(3-x)PbTiO(3) (BLF-PT) crystalline solutions for x = 0.35, 0.37, 0.4, 0.43 and 0.45 have been prepared by the solid-state reaction method. The X-ray diffraction analysis shows that BLF-PT has a single perovskite phase with mixed tetragonal and rhombohedral phases between x = 0.4 and 0.43. The Curie temperature of BLF-PT for x = 0.4 attains 460 degrees C, which is about 80 degrees C higher than that of hard Pb(Zr,Ti)O(3) ceramics. The remnant polarization and piezoelectric constant of BLF-PT for x = 0.4 reach 38 microC/cm(2) and 112 pC/N, respectively. The planar coupling factor k(p) of BLF-PT for x = 0.4 remains stable at temperature increases of up to 360 degrees C. The impedance spectroscopy study reveals that the high temperature conduction of BLF-PT may be attributed to the motion of oxygen vacancies within the material. Our results indicate that BLF-PT is a promising candidate for high temperature applications.

  12. [The nurturing and development of nurse practitioners]. (United States)

    Wang, Man-Hsi; Lin, Wen-Ling


    The role of nurse practitioner has been established because of a shortage of doctors. In May 2007, the first cohort of 582 nurse practitioners were licensed in Taiwan. The post of nurse practitioner in Taiwan is formally moving towards systematization and the most urgent matters in that regard are the sorting out of contentious issues and the establishment of clear job descriptions. Competence in critical thinking and problem-based learning is important and has to be improved with practice. The application of teaching assessment tools such as direct observation procedural skills (DOPS), objective structured clinical examination (OSCE), miniclinical evaluation exercises (Mini-CEX), and 360 degree assessments may contribute to the improvement of nurse practitioners' skills in conducting research, appraising evidence-based nursing literature, and developing teaching strategies and advanced systems by making policy clear, evaluating, auditing and monitoring the clinical competence of nurse practitioners, and incorporating essential findings into hospitals' evaluations of such staff, enabling them all the better to perform their role functions. Obviously, nursing accreditation is necessary in improving the intervention quality of nurse practitioner.

  13. Health care leader competencies and the relevance of emotional intelligence. (United States)

    Weiszbrod, Twila


    As health care leader competencies continue to be refined and emphasized in health care administration educational programs, the "soft skills" of emotional intelligence have often been implied, but not included explicitly. The purpose of this study was to better understand what relationship, if any, could be identified between health care leader competencies and emotional intelligence. A quantitative correlational method of study was used, utilizing self-assessments and 360-degree assessments of both constructs. There were 43 valid participants in the study, representing the various types of health care delivery systems. Correlational analysis suggested there was a positive relationship; for each unit of increase in emotional intelligence, there was a 0.6 increase in overall health care leadership competence. This study did not suggest causation, but instead suggested that including the study and development of emotional intelligence in health care administration programs could have a positive impact on the degree of leader competence in graduates. Some curricula suggestions were provided, and further study was recommended.

  14. Open reduction for congenital dislocation of the hip: comparison of the long-term results of the wide exposure method and Ludloff's method. (United States)

    Matsushita, T; Miyake, Y; Akazawa, H; Eguchi, S; Takahashi, Y


    We compared the long-term clinical and radiographic results of two methods of open reduction for congenital dislocation of the hip; a wide exposure method (360-degree circumferential capsulotomy) versus Ludloff's method (limited capsulotomy via the medial approach). Thirty-one hips in 24 patients assigned to group A received the wide exposure method and 32 hips in 27 patients assigned to group B had the Ludloff reduction. All patients were surgically reduced at less than 3 years of age. The follow-up averaged 16 years. None of the hips in group A required additional operations; however, 34.4% of the hips in group B did. At the latest review, 26 (83.9%) of the hips in group A were rated as Severin class I or II. Except for one patient, none had pain or a limp. Of the hips in group B, 18 (56.3%) were rated as Severin class I or II. Three patients had pain or Trendelenburg gait. Avascular necrosis occurred in 3.2% of hips in group A and in 21.9% of hips in group B. The wide exposure method is capable of completely releasing the posterosuperior tightness resulting from capsular adhesion to the ilium and the contracted short external rotators. Releasing the posterosuperior tightness from these structures seemed to provide a better chance of achieving an anatomically and functionally satisfactory hip.

  15. Building a team through a strategic planning process. (United States)

    Albert, Debra; Priganc, Dave


    Strategic planning is a process often left to senior hospital leadership, with limited input from unit-level, bedside patient care providers. This frequent approach to strategic planning misses the opportunity to engage a wide range of employees, build a shared sense of commitment, produce a collaborative team environment, and to generate greater acceptance of the plan. The Patient Care Services division at the University of Chicago Medicine used a strategic planning process that incorporated 360-degree input from both within the Patient Care Services division and outside of the division. The result is a strategic vision and plan that, shaped by broad-based input from both internal and external constituencies, is strengthened by the team that emerged from the process. Through the process of identifying a common understanding of the group's future direction, a shared purpose was created that transcended traditional professional boundaries and shaped a cohesive team focused on effective and efficient patient care. Now, with a focused strategic plan and a team centered on a shared purpose, the team is beginning to effectively deliver on the plan.

  16. A generalization of the convex Kakeya problem

    KAUST Repository

    Ahn, Heekap


    Given a set of line segments in the plane, not necessarily finite, what is a convex region of smallest area that contains a translate of each input segment? This question can be seen as a generalization of Kakeya\\'s problem of finding a convex region of smallest area such that a needle can be rotated through 360 degrees within this region. We show that there is always an optimal region that is a triangle, and we give an optimal Θ(nlogn)-time algorithm to compute such a triangle for a given set of n segments. We also show that, if the goal is to minimize the perimeter of the region instead of its area, then placing the segments with their midpoint at the origin and taking their convex hull results in an optimal solution. Finally, we show that for any compact convex figure G, the smallest enclosing disk of G is a smallest-perimeter region containing a translate of every rotated copy of G. © 2013 Springer Science+Business Media New York.

  17. Effect of nonlinear radiofrequency electromagnetic fields on the emittance of bunched beams (United States)

    Phadte, D. S.; Patidar, C. B.


    Gap transformations are frequently used in ion Linac codes, to efficiently describe the particle dynamics. Using similar approach, we analyze the uniformly bunched beam passing through an axis-symmetric radiofrequency (RF) cavity. The method can be used for other distributions as well using a similar six dimensional analysis. The effect of non-linear RF field in radial and axial directions in an RF cavity and the finite phase width of the bunch, on the transverse and longitudinal emittance growth have been studied. The expressions obtained have been verified for the two types of cavity cells namely the zero mode DTL and pi mode CCL type used frequently in ion linacs. The results are seen to be valid for the entire maximum phase acceptance up to 360 degrees. Simulations with the equivalent beams of non-uniform distributions namely Waterbag and Gaussian show that at synchronous phases closer to the wave crest, the results give a good approximation of emittance growth in both planes for non-uniform beams.

  18. Does a String-Particle Dualism Indicate the Uncertainty Principle's Philosophical Dichotomy? (United States)

    Mc Leod, David; Mc Leod, Roger


    String theory may allow resonances of neutrino-wave-strings to account for all experimentally detected phenomena. Particle theory logically, and physically, provides an alternate, contradictory dualism. Is it contradictory to symbolically and simultaneously state that λp = h, but, the product of position and momentum must be greater than, or equal to, the same (scaled) Plank's constant? Our previous electron and positron models require `membrane' vibrations of string-linked neutrinos, in closed loops, to behave like traveling waves, Tws, intermittently metamorphosing into alternately ascending and descending standing waves, Sws, between the nodes, which advance sequentially through 360 degrees. Accumulated time passages as Tws detail required ``loop currents'' supplying magnetic moments. Remaining time partitions into the Sws' alternately ascending and descending phases: the physical basis of the experimentally established 3D modes of these ``particles.'' Waves seem to indicate that point mass cannot be required to exist instantaneously at one point; Mott's and Sneddon's Wave Mechanics says that a constant, [mass], is present. String-like resonances may also account for homeopathy's efficacy, dark matter, and constellations' ``stick-figure projections,'' as indicated by some traditional cultures, all possibly involving neutrino strings. To cite this abstract, use the following reference:

  19. Thursday Programme of CineGlobe Festival 2015

    CERN Multimedia

    Cugini, Pavel


    The CineGlobe Programme on Thursday 26th March 2015 counted with two short-films inspired by science sessions, two workshops on the 360 degree dome, and a special evening show in collaboration with the Mapping Festival, to celebrate the UNESCO Year of Light. The evening open with Diego Blas, CERN theorist, talking about Light, Einstein and the LHC to celebrate the UNESCO International Year of Light. Followed by a performance by the artist YRO_EILE_18. The artist Yro presents Eile, a live installation performance where light, sound, and cinema converge to tell a timeless story. EILE is a live cinema performance, in which yro makes live sound and images with a camera, some microphones and small objects like stones, balls, bits of paper and string.These materials allow him to create videos and sound, which aesthetics are close to abstract cinema and object theater assembled, sampled and grinded . The process is part of the staging itself as well as the film that results. Indescribable Eile is lived as an experie...

  20. Hemolysis generation from a novel, linear positive displacement blood pump for cardiopulmonary bypass on a six kilogram piglet: a preliminary report. (United States)

    Lawson, D Scott; Eilers, Derek; Osorio Lujan, Suzanne; Bortot, Maria; Jaggers, James


    Current blood pumps used for cardiopulmonary bypass generally fall into two different pump design categories; non-occlusive centrifugal pumps and occlusive, positive-displacement roller pumps. The amount of foreign surface area of extracorporeal circuits correlates with post-operative morbidity due to systemic inflammation, leading to a push for technology that reduces the amount of foreign surfaces. Current roller pumps are bulky and the tubing forms an arc in the pumping chamber (raceway), positioning the inlet 360 degrees from the outlet, making it very difficult to place the pump closer to the patient and to efficiently reduce tubing length. These challenges put existing roller pumps at a disadvantage for use in a compact cardiopulmonary bypass circuit. Centrifugal blood pumps are easier to incorporate into miniature circuit designs. However, the prime volumes of current centrifugal pump designs are large, especially for pediatric extracorporeal circuits where the prime volumes are too great to be of clinical value. We describe a preliminary report on a novel, occlusive, linear, single-helix, positive-displacement blood pump which allows for decreased prime volume and surface area of the extracorporeal circuit. This new experimental pump design was used to perfuse a 6 kilogram piglet with a pediatric cardiopulmonary bypass circuit for two hours of continuous use. Blood samples were obtained every thirty minutes and assayed for plasma free hemolysis generation. The results from this initial experiment showed low plasma free hemoglobin generation and encourages the authors to further develop this concept.

  1. Transportation Deployment; NREL (National Renewable Energy Laboratory)

    Energy Technology Data Exchange (ETDEWEB)



    Automakers, commercial fleet operators, component manufacturers, and government agencies all turn to the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) to help put more green vehicles on the road. The lab’s independent analysis and evaluation pinpoint fuel-efficient and low-emission strategies to support economic and operational goals, while breaking down barriers to widespread adoption. Customized assessment of existing equipment and practices, energy-saving alternatives, operational considerations, and marketplace realities factor in the multitude of variables needed to ensure meaningful performance, financial, and environmental benefits. NREL provides integrated, unbiased, 360-degree sustainable transportation deployment expertise encompassing alternative fuels, advanced vehicles, and related infrastructure. Hands-on support comes from technical experts experienced in advanced vehicle technologies, fleet operations, and field data collection coupled with extensive modeling and analysis capabilities. The lab’s research team works closely with automakers and vehicle equipment manufacturers to test, analyze, develop, and evaluate high-performance fuel-efficient technologies that meet marketplace needs.


    Directory of Open Access Journals (Sweden)

    Chris Obisi , Ph.D


    Full Text Available Organizational performance and its resultant efficiency and effectiveness can only be achieved when individuals are continuously appraised and evaluated. The inability of organization to install an effective performance appraisal strategy has hindered them from achieving competitive advantage which they require more now than ever before. Appraisal processes are not systematic and regular and often characterized by personal influences occasioned by organizations preoccupation to use confidential appraisal system which hinders objectivity and fairness. Often organizations ignore management by objectives, critical incidents to personal prejudices. This is retrogressive as it affects the overall performance of the individual. 360 degrees appraisal method whereby superiors and the appraise their subordinates, subordinates appraise their superior and the appraisee appraise himself or herself and the average of all the appraisal taken to arrive at the final appraisal outcome should be now be considered by organizations. Also post appraisal counseling whereby the appraisal outcomes are analyzed to explain strengths and weaknesses and set agenda for better future performance. Organizationsshould stop giving less attention to the evaluation of their employees and recognize that organizational training needs can only be identified from performance appraisal outcomes. It is an invaluable tool but in the hands of human resource management officers to continuously evaluates and audits the performance of its employees in other to help organizations win competitive advantage.

  3. Vedute of Cluj Napoca: an Icongraphic Perspective over the Urban Space

    Directory of Open Access Journals (Sweden)



    Full Text Available The town views were a constant preoccupation of the European scientists, artists, geographers and military stuff, sometimes without a distinct separation between them. Starting with the 17th century, the correct representations of space became a predominant military matter, controlled by the engineers of the main monarchies of Europe. Even so, it remained more “space” to conquer and the artists proved to be real agents of change, especially “vedutisti”, concerned to catch that complex genius loci which combines spectacular landmark panoramas with everyday life, choosing Europe’s main cities as scenery. Transylvania region has also experienced a similar process due the influence of the Age of Enlightenment, but with a delay specific to its peripheral geographic position and political status. The city of Cluj-Napoca was one of the favourite subjects of the foreign and local artists, which proved to be very sensitive to the trends of the urban change capturing the local colour as a statement of the historic past, but also as a change in perceiving the urban space. Compared with almost one-sided urban views of the past centuries, the 19th century brings a 360-degree perspective over the urban space, significant for the future development of the city.

  4. Implications of Articulating Machinery on Operator Line of Sight and Efficacy of Camera Based Proximity Detection Systems

    Directory of Open Access Journals (Sweden)

    Nicholas Schwabe


    Full Text Available The underground mining industry, and some above ground operations, rely on the use of heavy equipment that articulates to navigate corners in the tight confines of the tunnels. Poor line of sight (LOS has been identified as a problem for safe operation of this machinery. Proximity detection systems, such as a video system designed to provide a 360 degree view around the machine have been implemented to improve the available LOS for the operator. A four-camera system was modeled in a computer environment to assess LOS on a 3D cad model of a typical, articulated machine. When positioned without any articulation, the system is excellent at removing blind spots for a machine driving straight forward or backward in a straight tunnel. Further analysis reveals that when the machine articulates in a simulated corner section, some camera locations are no longer useful for improving LOS into the corner. In some cases, the operator has a superior view into the corner, when compared to the best available view from the camera. The work points to the need to integrate proximity detection systems at the design, build, and manufacture stage, and to consider proper policy and procedures that would address the gains and limits of the systems prior to implementation.

  5. Hydrogenation of heteroaromatics by high pressure DTA techniques. 3; Koatsu DTA ho ni yoru hokozoku kagobutsu no suisoka (rutenium tanji shokubai ni yoru kakusuisoka datsu hetero hanno)

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, M.; Yoshida, T. [Hokkaido National Industrial Research Institute, Sapporo (Japan); Kotanigawa, T. [Japan International Cooperation Agency, Tokyo (Japan)


    Ring-opening of heteroaromatics and heteroatom-removal reaction were studied experimentally using the acidic catalyst containing phosphoric acid for improvement of an upgrading method of coal derived oils. In experiment, some Ru-carrying metal oxide catalysts such as RMZ, RML and RMN catalyst, and MNP catalyst containing phosphoric acid were used as specimens. Nuclear hydrogenation reaction and hydro-denitrogenation reaction of dibenzothiophene and carbazole were compared with each other. The experimental results are as follows. Both RMN and RMNP catalysts offer a superior selectivity in nuclear hydrogenation reaction and hydro-denitrogenation reaction of carbazole. Although both catalysts offer an extremely high nuclear hydrogenation activity at 360{degree}C, these offer the high selectivity of denitrogenation products at 430{degree}C. In comparison of the activities of MN and MNP catalysts with the same Mn2O3:NiO ratio, MNP catalyst offers the higher denitrogenation activity than MN catalyst at 430{degree}C. 1 ref., 3 tabs.

  6. GOTCHA experience report: three-dimensional SAR imaging with complete circular apertures (United States)

    Ertin, Emre; Austin, Christian D.; Sharma, Samir; Moses, Randolph L.; Potter, Lee C.


    We study circular synthetic aperture radar (CSAR) systems collecting radar backscatter measurements over a complete circular aperture of 360 degrees. This study is motivated by the GOTCHA CSAR data collection experiment conducted by the Air Force Research Laboratory (AFRL). Circular SAR provides wide-angle information about the anisotropic reflectivity of the scattering centers in the scene, and also provides three dimensional information about the location of the scattering centers due to a non planar collection geometry. Three dimensional imaging results with single pass circular SAR data reveals that the 3D resolution of the system is poor due to the limited persistence of the reflectors in the scene. We present results on polarimetric processing of CSAR data and illustrate reasoning of three dimensional shape from multi-view layover using prior information about target scattering mechanisms. Next, we discuss processing of multipass (CSAR) data and present volumetric imaging results with IFSAR and three dimensional backprojection techniques on the GOTCHA data set. We observe that the volumetric imaging with GOTCHA data is degraded by aliasing and high sidelobes due to nonlinear flightpaths and sparse and unequal sampling in elevation. We conclude with a model based technique that resolves target features and enhances the volumetric imagery by extrapolating the phase history data using the estimated model.

  7. Multibeam volume acoustic backscatter imagery and reverberation measurements in the northeastern Gulf of Mexico (United States)

    Gallaudet, Timothy C.; deMoustier, Christian P.


    Multibeam volume acoustic backscatter imagery and reverberation measurements are derived from data collected in 200-m-deep waters in the northeastern Gulf of Mexico, with the Toroidal Volume Search Sonar (TVSS), a 68-kHz cylindrical sonar operated by the U.S. Navy's Coastal System Station. The TVSS's 360-degree vertical imaging plane allows simultaneous identification of multiple volume scattering sources and their discrimination from backscatter at the sea surface or the seafloor. This imaging capability is used to construct a three-dimensional representation of a pelagic fish school near the bottom. Scattering layers imaged in the mixed layer and upper thermocline are attributed to assemblages of epipelagic zooplankton. The fine scale patchiness of these scatterers is assessed with the two-dimensional variance spectra of vertical volume scattering strength images in the upper and middle water column. Mean volume reverberation levels exhibit a vertical directionality which is attributed to the volume scattering layers. Boundary echo sidelobe interference and reverberation is shown to be the major limitation in obtaining bioacoustic data with the TVSS. Because net tow and trawl samples were not collected with the acoustic data, the analysis presented is based upon comparison to previous biologic surveys in the northeastern Gulf of Mexico and reference to the bioacoustic literature. copyright 2002 Acoustical Society of America.

  8. Venus - Alpha Regio (United States)


    The eastern edge of Alpha Regio is shown in this image centered at 30 degrees south latitude and 11.8 degrees east longitude (longitude on Venus is measured from 0 degrees to 360 degrees east). Seven circular, dome-like hills, averaging 25 kilometers (15 miles) in diameter with maximum heights of 750 meters (2,475 feet) dominate the scene. These features are interpreted as very thick lava flows that came from an opening on the relatively level ground, which allowed the lava to flow in an even pattern outward from the opening. The complex fractures on top of the domes suggest that if the domes were created by lava flows, a cooled outer layer formed and then further lava flowing in the interior stretched the surface. The domes may be similar to volcanic domes on Earth. Another interpretation is that the domes are the result of molten rock or magma in the interior that pushed the surface layer upward. The near-surface magma then withdrew to deeper levels, causing the collapse and fracturing of the dome surface. The bright margins possibly indicate the presence of rock debris on the slopes of the domes. Some of the fractures on the plains cut through the domes, while others appear to be covered by the domes. This indicates that active processes pre date and post date the dome-like hills. The prominent black area in the northeast corner of the image is a data gap. North is at the top of the image.

  9. Experimental Assessment of Photon Fluence Rate Distributions in a Medium-Pressure UV Photoreactor. (United States)

    Li, Mengkai; Qiang, Zhimin; Wang, Chen; Bolton, James R; Blatchley Iii, Ernest R


    The performance of a medium-pressure (MP) mercury lamp photoreactor is strongly influenced by the spatial photon fluence rate (PFR) distributions which are wavelength-dependent. To address this issue, PFR distributions in an MP lamp photoreactor were measured using a 360-degree response microfluorescent silica detector (MFSD). To accurately express the optical behavior in an MP photoreactor, PFR, MFSD response PFR (PFRMFSD), and effective germicidal PFR (PFRGER) were defined and compared. The measured axial and radial PFRMFSD values agreed well with the corresponding results from a simulation model (UVCalc). The PFR and PFRGER were obtained from the measured PFRMFSD by using correction factors calculated by the UVCalc. Under identical UV transmittance (254 nm) conditions (75% and 85%), the weighted average PFRGER values were 13.3-18.7% lower than the corresponding PFR values, indicating that PFRGER, rather than PFR should be used in MP photoreactor design to meet disinfection standards. Based on measured lamp output, medium absorption spectrum, MFSD response, and microbial DNA response spectrum, the detailed relationships between the PFR, PFRMFSD, and PFRGER were elucidated. This work proposes a new method for the accurate description of wavelength-dependent PFR distributions in MP photoreactors, thus providing an important tool for the optimal design of these systems.

  10. Practice and thinking of assessment scale design for simulated clinical skills examination%医学模拟临床技能考试评估量表设计的实践与思考

    Institute of Scientific and Technical Information of China (English)

    易雪; 黄河清; 刘刚; 郑建惠


    系统地介绍了客观结构化临床考核评估量表的设计基础、通过标准、考试成绩影响因素等,并通过多年OSCE考核评分量表制订与修改的实践研究,提出通过改良运用360度评估方法设计OSCE考核评分量表,能有效减少环境、考生、评分者、考题设计四个因素对考生成绩影响的可行途径,对科学制订OSCE评估量表,以及对提高OSCE考核的信度与效度有重要意义.%This article described systematically the design basis,passing standard and influential factor of test score of the assessment scale of simulated clinical skills examination.Through developing and modifying OSCE examination scale design for many years,we have found that the use of 360-degree assessment for designing OSCE assessment rating scale can effectively reduce the impact on the score of examinee owing to the environment,the candidates,raters and question design,which has an important role for scientific development of OSCE assessment scales,as well as improving the reliability and validity for development of a scientific OSCE assessment.

  11. Analytical Study of Response of Multi-Storey Building under Biaxial Excitation

    Directory of Open Access Journals (Sweden)

    Priyanka Y. Kalshetty


    Full Text Available Conventional practice of dynamic analysis using seismic codes recommends that the dynamic analysis is done by considering earthquake force in one direction at a time i.e. uniaxial excitation. But the simultaneous effect of asymmetricities in both orthogonal directions is neglected because of uniaxial excitation approach. Also the behaviour of building during earthquake depends upon its shape size and overall geometry. The partial and complete collapse of reinforced concrete buildings in recent earthquakes has raised the need to design the building considering biaxial forces. Limited research has been carried out on effect of such biaxial excitation. To get reliable results a regular and C shape model of multi-storey building is analysed using various timehistories in SAP2000 v17. The angle of incidence of earthquake forces will be varying between 0 to 360 degrees. The influence of the orthogonal horizontal component of input ground motion on seismic response of reinforced concrete building is analysed by comparing the response of biaxial excitation with the response of uniaxial excitation. Change in maximum displacement values, considering this as the basic criteria, comparison of the responses due biaxial excitation and uniaxial excitation is done. Time history analysis has been carried out using SAP2000 after validating the model with results available in reference literature. It is observed and recommended that considering biaxial forces is necessary for an accurate determination of response and also to reach an adequate design for serviceability earthquakes.

  12. Advance Trends in Soft Computing

    CERN Document Server

    Kreinovich, Vladik; Kacprzyk, Janusz; WCSC 2013


    This book is the proceedings of the 3rd World Conference on Soft Computing (WCSC), which was held in San Antonio, TX, USA, on December 16-18, 2013. It presents start-of-the-art theory and applications of soft computing together with an in-depth discussion of current and future challenges in the field, providing readers with a 360 degree view on soft computing. Topics range from fuzzy sets, to fuzzy logic, fuzzy mathematics, neuro-fuzzy systems, fuzzy control, decision making in fuzzy environments, image processing and many more. The book is dedicated to Lotfi A. Zadeh, a renowned specialist in signal analysis and control systems research who proposed the idea of fuzzy sets, in which an element may have a partial membership, in the early 1960s, followed by the idea of fuzzy logic, in which a statement can be true only to a certain degree, with degrees described by numbers in the interval [0,1]. The performance of fuzzy systems can often be improved with the help of optimization techniques, e.g. evolutionary co...


    Directory of Open Access Journals (Sweden)

    Pragnya Ravichandran


    Full Text Available Background: Neck pain is a common disorder prevailing among individuals of different populations. The myofascial pain syndrome is a disorder related to myofascial trigger points. It is defined as a hyperirritable locus in skeletal muscle and that is associated with a hypersensitive palpable nodule in a taut band of muscle. Manual therapy has got a profound role in treating and ischemic compression technique has been researched widely. Thus the study intends to analyse the effectiveness of Manual Therapy (Ischemic Compression on functional outcome in neck pain. Methods: A single blinded randomized control study was conducted for subjects of sample size 30 who met the inclusion criteria and random allocation was made. The baseline parameters as like pain severity using VAS, pain pressure threshold using pressure Algometer, active cervical lateral flexion using 360 degree goniometer and disability using NDI were recorded. Study group received ischemic compression followed by myofascial stretches while the control group received ultrasonic therapy of 1.4watts/cm2. Both received Cryotherapy post session. After 2 weeks the baseline parameters were again recorded for t-test analysis. Result: There was no statistical significance between groups (p≥0.05. But active cervical lateral flexion showed improved mobility in study group and a high statistical significance within groups (p≤0.01 in relation to all parameters. Conclusion: Both ultrasonic therapy and Ischemic compression technique was found to show better improvement in pain pressure threshold and functional outcome in neck pain.

  14. The Effect Of The Applied Performance Methods On The Objective Of The Managers

    Directory of Open Access Journals (Sweden)

    Derya Kara


    Full Text Available Within the changing management concept, employees and employers have the constant feeling of keeping up with the changing environment. In this regard, performance evaluation activities are regarded as an indispensable element. Data obtained from the results of the performance evaluation activities, shed light on the development of the employees and enable the enterprises to stand in the fierce competitive environment. This study sets out to find out the effect of the applied performance methods on the objective of the managers. The population of the study comprises 182 hotel enterprises with five stars operating in Antalya, İzmir and Muğla with 2184 managers. Sample population was comprised of 578 managers. The results of the study suggest that the effect of the applied performance methods on the objective of the managers counts. The objective of the managers applying 360-degree performance evaluation method is found to be “finding out the training and development needs”, while the objective of the managers applying conventional performance evaluation methods is found to be “enhancing the existing performance”.

  15. Assessing clinical competency: reports from discussion groups. (United States)

    Turnwald, Grant; Stone, Elizabeth; Bristol, David; Fuentealba, Carmen; Hardie, Lizette; Hellyer, Peter; Jaeger, Laurie; Kerwin, Sharon; Kochevar, Deborah; Lissemore, Kerry; Olsen, Christopher; Rogers, Kenita; Sabin, Beth; Swanson, Cliff; Warner, Angeline


    This report describes proposed new models for assessment of eight of the nine clinical competencies the American Veterinary Medical Association Council on Education requires for accreditation. The models were developed by discussion groups at the Association of American Veterinary Medical Colleges' Clinical Competency Symposium. Clinical competencies and proposed models (in parentheses) are described. Competency 1: comprehensive patient diagnosis (neurologic examination on a dog, clinical reasoning skills); Competency 2: comprehensive treatment planning (concept mapping, computerized case studies); Competency 3: anesthesia, pain management (student portfolio); Competency 4: surgery skills (objective structured clinical examination, cased-based examination, "super dog" model); Competency 5: medicine skills (clinical reasoning and case management, skills checklist); Competency 6: emergency and intensive care case management (computerized case study or scenario); Competency 7: health promotion, disease prevention/biosecurity (360 degrees evaluation, case-based computer simulation); Competency 8: client communications and ethical conduct (Web-based evaluation forms, client survey, communicating with stakeholders, telephone conversation, written scenario-based cases). The report also describes faculty recognition for participating in clinical competency assessments.

  16. Multifunction automated crawling system (United States)

    Bar-Cohen, Yoseph (Inventor); Joffe, Benjamin (Inventor); Backes, Paul Gregory (Inventor)


    The present invention is an automated crawling robot system including a platform, a first leg assembly, a second leg assembly, first and second rails attached to the platform, and an onboard electronic computer controller. The first leg assembly has an intermittent coupling device and the second leg assembly has an intermittent coupling device for intermittently coupling the respective first and second leg assemblies to a particular object. The first and second leg assemblies are slidably coupled to the rail assembly and are slidably driven by motors to thereby allow linear movement. In addition, the first leg assembly is rotary driven by a rotary motor to thereby provide rotary motion relative to the platform. To effectuate motion, the intermittent coupling devices of the first and second leg assemblies alternately couple the respective first and second leg assemblies to an object. This motion is done while simultaneously moving one of the leg assemblies linearly in the desired direction and preparing the next step. This arrangement allows the crawler of the present invention to traverse an object in a range of motion covering 360 degrees.

  17. Defect Detection in Pipes using a Mobile Laser-Optics Technology and Digital Geometry

    Directory of Open Access Journals (Sweden)

    Tezerjani Abbasali Dehghan


    Full Text Available This paper presents a novel method for defect detection in pipes using a mobile laser-optics technology and conventional digital-geometry-based image processing techniques. The laser-optics consists of a laser that projects a line onto the pipe’s surface, and an omnidirectional camera. It can be mounted on a pipe crawling robot for conducting continuous inspection. The projected laser line will be seen as a half-oval in the image. When the laser line passes over defected points, the image moments on the pixel information would change. We propose a B-spline curve fitting on the digitally-convoluted image and a curvature estimation algorithm to detect the defects from the image. Defect sizes of 2 mm or larger can be detected using this method in pipes of up to 24 inch in diameter. The proposed sensor can detect 180-degree (i.e., upper half surface of the pipe. By turning the sensor 180 degrees, one will be able to detect the other half (i.e., lower half of the pipe’s surface. While, 360-degree laser rings are available commercially, but they did not provide the intensity needed for our experimentation. We also propose a fast boundary extraction algorithm for real time detection of defects, where a trace of consecutive images are used to track the image features. Tests were carried out on PVC and steel pipes.

  18. An evaluation of 99Tcm-DMSA SPET with three-dimensional reconstruction in 68 patients with varied renal pathology. (United States)

    Cook, G J; Lewis, M K; Clarke, S E


    Sixty-eight patients (135 kidneys) with varied renal pathology were evaluated with 99Tcm-dimercaptosuccinic acid (DMSA) single photon emission tomography (SPET) to determine whether it is possible to detect more renal abnormalities and to reduce the number of false-positives due to anatomical variants when compared with planar imaging. The patients ranged in age from 1 to 78 years and their pathologies included urinary tract infection (n = 50), space occupying lesions (n = 5), calculi (n = 4), hypertension (n = 4) and others (n = 5). Planar scans were performed 3 h after the injection of 80 MBq of 99Tcm-DMSA and a 64 x 20 s acquisition over 360 degrees was used for SPET. High-resolution collimation was used for both. Slices were displayed as transaxial, coronal and sagittal and/or oblique sagittal in the plane of the kidney. Three-dimensional (3D) images were formed by volume rendering. Each kidney was divided into three regions and each region scored separately for the presence of an abnormality. Planar scans were reviewed alone and then in conjunction with SPET and 3D images. Planar imaging detected 95 abnormal regions compared with 103 using SPET. SPET reduced the number of equivocal regions in 8 (12%) patients. The diagnosis was altered by SPET in 17 (4%) regions in 14 (21%) patients. SPET and 3D 99Tcm-DMSA allow more abnormalities to be detected but also allow more specific definition of apparent abnormalities on planar imaging.

  19. Status and Control Requirements of the Planned Heavy Ion Tumor Therapy Accelerator Facility HICAT

    CERN Document Server

    Baer, R C; Haberer, T; Baer, Ralph C.; Eickhoff, Hartmut; Haberer, Thomas


    The HICAT project is a Heavy Ion accelerator for light ion Cancer Treatment to be built for the clinics in Heidelberg, Germany. It consists of a 7 MeV/u linac, a compact synchrotron and three treatment places, one of them equipped with a 360 degree gantry beam-line. The facility will implement the intensity controlled raster-scanning technique that was developed and successfully demonstrated at GSI with over 100 patients at present. In order to produce the beams with the characteristics requested by the treatment sequencer, the accelerator must operate on a pulse-to-pulse basis with different settings. This concept imposes strict and challenging demands on the operation of the accelerators and hence the control system of the facility. The control system should be developed, installed and maintained by and under the complete responsibility of an industrial system provider, using a state-of-the-art system and wide-spread industrial components wherever possible. The presentation covers the status of the project ...

  20. Three-dimensional visualization system as an aid for facial surgical planning (United States)

    Barre, Sebastien; Fernandez-Maloigne, Christine; Paume, Patricia; Subrenat, Gilles


    We present an aid for facial deformities treatment. We designed a system for surgical planning and prediction of human facial aspect after maxillo-facial surgery. We study the 3D reconstruction process of the tissues involved in the simulation, starting from CT acquisitions. 3D iso-surfaces meshes of soft tissues and bone structures are built. A sparse set of still photographs is used to reconstruct a 360 degree(s) texture of the facial surface and increase its visual realism. Reconstructed objects are inserted into an object-oriented, portable and scriptable visualization software allowing the practitioner to manipulate and visualize them interactively. Several LODs (Level-Of- Details) techniques are used to ensure usability. Bone structures are separated and moved by means of cut planes matching orthognatic surgery procedures. We simulate soft tissue deformations by creating a physically-based springs model between both tissues. The new static state of the facial model is computed by minimizing the energy of the springs system to achieve equilibrium. This process is optimized by transferring informations like participation hints at vertex-level between a warped generic model and the facial mesh.

  1. Peripapillary choroidal thickness in healthy Chinese subjects (United States)


    Background To evaluate the peripapillary choroidal thickness of a healthy Chinese population, and to determine its influencing factors. Methods A total of 76 healthy volunteers (76 eyes) without ophthalmic or systemic symptoms were enrolled. Choroidal scans (360-degree 3.4 mm diameter peripapillary circle scans) were obtained for all eyes using enhanced depth imaging spectral-domain optical coherence tomography. Choroid thickness was measured at the temporal, superotemporal, superior, superonasal, nasal, inferonasal, inferior, and inferotemporal segments. Results The average peripapillary choroidal thicknesses were 165.03 ± 40.37 μm. Inferonasal, inferior, and inferotemporal thicknesses were significantly thinner than temporal, superotemporal, superior, superonasal, nasal thicknesses (p thicknesses. The average peripapillary choroidal thickness decreased linearly with age (β = −1.33, 95% CI −1.98, -0.68, P choroidal thickness and other factors (gender, refractive error, axial length, average retinal nerve fiber layer thickness, intraocular pressure, diastolic blood pressure, systolic blood pressure, mean blood pressure, diastolic ocular perfusion pressure, systolic ocular perfusion pressure, and mean ocular perfusion pressure). Conclusions The inferonasal, inferior, inferotemporal peripapillary choroidal thicknesses were significantly thinner than temporal, superotemporal, superior, superonasal, and nasal thicknesses. A thinner peripapillary choroid is associated with increasing age. PMID:23758729

  2. Cone beam x-ray luminescence computed tomography reconstruction with a priori anatomical information (United States)

    Lo, Pei-An; Lin, Meng-Lung; Jin, Shih-Chun; Chen, Jyh-Cheng; Lin, Syue-Liang; Chang, C. Allen; Chiang, Huihua Kenny


    X-ray luminescence computed tomography (XLCT) is a novel molecular imaging modality that reconstructs the optical distribution of x-ray-excited phosphor particles with prior informational of anatomical CT image. The prior information improves the accuracy of image reconstruction. The system can also present anatomical CT image. The optical system based on a high sensitive charge coupled device (CCD) is perpendicular with a CT system. In the XLCT system, the xray was adopted to excite the phosphor of the sample and CCD camera was utilized to acquire luminescence emitted from the sample in 360 degrees projection free-space. In this study, the fluorescence diffuse optical tomography (FDOT)-like algorithm was used for image reconstruction, the structural prior information was incorporated in the reconstruction by adding a penalty term to the minimization function. The phosphor used in this study is Gd2O2S:Tb. For the simulation and experiments, the data was collected from 16 projections. The cylinder phantom was 40 mm in diameter and contains 8 mm diameter inclusion; the phosphor in the in vivo study was 5 mm in diameter at a depth of 3 mm. Both the errors were no more than 5%. Based on the results from these simulation and experimental studies, the novel XLCT method has demonstrated the feasibility for in vivo animal model studies.

  3. A plea for new psychometric models in educational assessment. (United States)

    Schuwirth, Lambert W T; van der Vleuten, Cees P M


    To describe the weaknesses of the current psychometric approach to assessment as a scientific model. The current psychometric model has played a major role in improving the quality of assessment of medical competence. It is becoming increasingly difficult, however, to apply this model to modern assessment methods. The central assumption in the current model is that medical competence can be subdivided into separate measurable stable and generic traits. This assumption has several far-reaching implications. Perhaps the most important is that it requires a numerical and reductionist approach, and that aspects such as fairness, defensibility and credibility are by necessity mainly translated into reliability and construct validity. These approaches are more and more difficult to align with modern assessment approaches such as mini-CEX, 360-degree feedback and portfolios. This paper describes some of the weaknesses of the psychometric model and aims to open a discussion on a conceptually different statistical approach to quality of assessment. We hope that the discussion opened by this paper will lead to the development of a conceptually different statistical approach to quality of assessment. A probabilistic or Bayesian approach would be worth exploring.

  4. Increased ISR operator capability utilizing a centralized 360° full motion video display (United States)

    Andryc, K.; Chamberlain, J.; Eagleson, T.; Gottschalk, G.; Kowal, B.; Kuzdeba, P.; LaValley, D.; Myers, E.; Quinn, S.; Rose, M.; Rusiecki, B.


    In many situations, the difference between success and failure comes down to taking the right actions quickly. While the myriad of electronic sensors available today can provide data quickly, it may overload the operator; where only a contextualized centralized display of information and intuitive human interface can help to support the quick and effective decisions needed. If these decisions are to result in quick actions, then the operator must be able to understand all of the data of his environment. In this paper we present a novel approach in contextualizing multi-sensor data onto a full motion video real-time 360 degree imaging display. The system described could function as a primary display system for command and control in security, military and observation posts. It has the ability to process and enable interactive control of multiple other sensor systems. It enhances the value of these other sensors by overlaying their information on a panorama of the surroundings. Also, it can be used to interface to other systems including: auxiliary electro-optical systems, aerial video, contact management, Hostile Fire Indicators (HFI), and Remote Weapon Stations (RWS).

  5. Serpentine Coil Topology for BNL Direct Wind Superconducting Magnets

    CERN Document Server

    Parker, Brett


    BNL direct wind technology, with the conductor pattern laid out without need for extra tooling (no collars, coil presses etc.) began with RHIC corrector production. RHIC patterns were wound flat and then wrapped on cylindrical support tubes. Later for the HERA-II IR magnets we improved conductor placement precision by winding directly on a support tube. To meet HERA-II space and field quality goals took sophisticated coil patterns, (some wound on tapered tubes). We denote such patterns, topologically equivalent to RHIC flat windings, "planar patterns." Multi-layer planar patterns run into trouble because it is hard to wind across existing turns and magnet leads get trapped at poles. So we invented a new "Serpentine" winding style, which goes around 360 degrees while the conductor winds back and forth on the tube. To avoid making solenoidal fields, we wind Serpentine layers in opposite handed pairs. With a Serpentine pattern each turn can have the same projection on the coil axis and integral field harmonics t...

  6. Discrete magic angle turning system, apparatus, and process for in situ magnetic resonance spectroscopy and imaging (United States)

    Hu, Jian Zhi [Richland, WA; Sears, Jr., Jesse A.; Hoyt, David W [Richland, WA; Wind, Robert A [Kennewick, WA


    Described are a "Discrete Magic Angle Turning" (DMAT) system, devices, and processes that combine advantages of both magic angle turning (MAT) and magic angle hopping (MAH) suitable, e.g., for in situ magnetic resonance spectroscopy and/or imaging. In an exemplary system, device, and process, samples are rotated in a clockwise direction followed by an anticlockwise direction of exactly the same amount. Rotation proceeds through an angle that is typically greater than about 240 degrees but less than or equal to about 360 degrees at constant speed for a time applicable to the evolution dimension. Back and forth rotation can be synchronized and repeated with a special radio frequency (RF) pulse sequence to produce an isotropic-anisotropic shift 2D correlation spectrum. The design permits tubes to be inserted into the sample container without introducing plumbing interferences, further allowing control over such conditions as temperature, pressure, flow conditions, and feed compositions, thus permitting true in-situ investigations to be carried out.

  7. Ultrahigh resolution endoscopic spectral domain optical coherence tomography with a tiny rotary probe driven by a hollow ultrasonic motor (United States)

    Zhang, Ning; Chen, Tianyuan; Huo, Tiancheng; Wang, Chengming; Zheng, Jing-gao; Zhou, Tieying; Xue, Ping


    This paper proposes a novel rotary endoscopic probe for spectral-domain optical coherence tomography (SD-OCT). The probe with a large N.A. objective lens is driven by an ultra-small hollow rectangular ultrasonic motor for circular scanning. Compared to the conventional driven techniques, the hollow ultrasonic motor enables the fiber to pass through its inside. Therefore the fiber, the objective lens and the motor are all at the same side. This enables 360 degree unobstructed imaging without any shadow resulted from power wire as in the conventional motor-driven endoscopic OCT. Moreover, it shortens the length of the rigid tip and enhances the flexibility of the probe. Meanwhile, the ultrasonic motor is robust, simple, quiet and of high torque, very suitable for OCT endoscopic probe. The side length of the motor is 0.7 mm with 5mm in length. The outer diameter of the probe is 1.5mm. A significant improvement in the lateral resolution is demonstrated due to the novel design of the objective lens. A right-angle lens is utilized instead of the traditional right-angle prism as the last optics close to the sample, leading to a reduction of the working distance and an enlargement of the N.A. of the objective lens. It is demonstrated that the endoscopic SD-OCT system achieves an axial resolution of ~7μm, a lateral resolution of ~6μm and a SNR of ~96dB.

  8. Inverse scattering and refraction corrected reflection for breast cancer imaging (United States)

    Wiskin, J.; Borup, D.; Johnson, S.; Berggren, M.; Robinson, D.; Smith, J.; Chen, J.; Parisky, Y.; Klock, John


    Reflection ultrasound (US) has been utilized as an adjunct imaging modality for over 30 years. TechniScan, Inc. has developed unique, transmission and concomitant reflection algorithms which are used to reconstruct images from data gathered during a tomographic breast scanning process called Warm Bath Ultrasound (WBU™). The transmission algorithm yields high resolution, 3D, attenuation and speed of sound (SOS) images. The reflection algorithm is based on canonical ray tracing utilizing refraction correction via the SOS and attenuation reconstructions. The refraction correction reflection algorithm allows 360 degree compounding resulting in the reflection image. The requisite data are collected when scanning the entire breast in a 33° C water bath, on average in 8 minutes. This presentation explains how the data are collected and processed by the 3D transmission and reflection imaging mode algorithms. The processing is carried out using two NVIDIA® Tesla™ GPU processors, accessing data on a 4-TeraByte RAID. The WBU™ images are displayed in a DICOM viewer that allows registration of all three modalities. Several representative cases are presented to demonstrate potential diagnostic capability including: a cyst, fibroadenoma, and a carcinoma. WBU™ images (SOS, attenuation, and reflection modalities) are shown along with their respective mammograms and standard ultrasound images. In addition, anatomical studies are shown comparing WBU™ images and MRI images of a cadaver breast. This innovative technology is designed to provide additional tools in the armamentarium for diagnosis of breast disease.

  9. Oscillating red giants observed during Campaign 1 of the Kepler K2 mission: New prospects for galactic archaeology

    CERN Document Server

    Stello, D; Sharma, S; Johnson, J; Lund, M N; Handberg, R; Buzasi, D L; Aguirre, V Silva; Chaplin, W J; Miglio, A; Pinsonneault, M; Basu, S; Bedding, T R; Bland-Hawthorn, J; Casagrande, L; Davies, G; Elsworth, Y; Garcia, R A; Mathur, S; Di Mauro, M Pia; Mosser, B; Schneider, D P; Serenelli, A; Valentini, M


    NASA's re-purposed Kepler mission -- dubbed K2 -- has brought new scientific opportunities that were not anticipated for the original Kepler mission. One science goal that makes optimal use of K2's capabilities, in particular its 360-degree ecliptic field of view, is galactic archaeology -- the study of the evolution of the Galaxy from the fossil stellar record. The thrust of this research is to exploit high-precision, time-resolved photometry from K2 in order to detect oscillations in red giant stars. This asteroseismic information can provide estimates of stellar radius (hence distance), mass and age of vast numbers of stars across the Galaxy. Here we present the initial analysis of a subset of red giants, observed towards the North Galactic Gap, during the mission's first full science campaign. We investigate the feasibility of using K2 data for detecting oscillations in red giants that span a range in apparent magnitude and evolutionary state (hence intrinsic luminosity). We demonstrate that oscillations ...

  10. Internet-based physical assessment of people with Parkinson disease is accurate and reliable: A pilot study

    Directory of Open Access Journals (Sweden)

    Trevor G. Russell, PhD


    Full Text Available Telerehabilitation may be an alternative service delivery model for people with Parkinson disease (PD who live in areas where traditional rehabilitation services are not readily accessible. The aim of this study was to determine the accuracy and reliability of performing remote physical assessments of people with PD via telerehabilitation when compared with traditional face-to-face assessments. Twelve subjects were simultaneously examined by a face-to-face investigator and a remote investigator via the eHAB telerehabilitation system. The outcome measures evaluated included the timed stance test, Timed “Up and Go” test, step test, steps in 360 degree turn, Berg Balance Scale, and lateral and functional reach tests. Limits of agreements intervals and weighted kappa statistics demonstrated the telerehabilitation assessments to be accurate within clinically acceptable limits. A high level of inter- and intrarater reliability was demonstrated across all telerehabilitation assessments. This study indicates that it is possible to assess the physical ability of people with PD via telerehabilitation systems and provides support for the further development of telerehabilitation applications for patients with neurological disorders.

  11. Real-Time 3-Dimensional Ultrasound-Assisted Infraclavicular Brachial Plexus Catheter Placement: Implications of a New Technology

    Directory of Open Access Journals (Sweden)

    Steven R. Clendenen


    Full Text Available Background. There are a variety of techniques for targeting placement of an infraclavicular blockade; these include eliciting paresthesias, nerve stimulation, and 2-dimensional (2D ultrasound (US guidance. Current 2D US allows direct visualization of a “flat” image of the advancing needle and neurovascular structures but without the ability to extensively analyze multidimensional data and allow for real-time manipulation. Three-dimensional (3D ultrasonography has gained popularity and usefulness in many clinical specialties such as obstetrics and cardiology. We describe some of the potential clinical applications of 3D US in regional anesthesia. Methods. This case represents an infraclavicular catheter placement facilitated by 3D US, which demonstrates 360-degree spatial relationships of the entire anatomic region. Results. The block needle, peripheral nerve catheter, and local anesthetic diffusion were observed in multiple planes of view without manipulation of the US probe. Conclusion. Advantages of 3D US may include the ability to confirm correct needle and catheter placement prior to the injection of local anesthetic. The spread of local anesthetic along the length of the nerve can be easily observed while manipulating the 3D images in real-time by simply rotating the trackball on the US machine to provide additional information that cannot be identified with 2D US alone.

  12. Building leadership capacity to drive sustainable water management: the evaluation of a customised program. (United States)

    Taylor, A C


    This paper describes a customised, six-month, leadership development program (LDP) that was designed for emerging leaders in the Australian water industry who were promoting sustainable urban water management (SUWM). It also presents results from an evaluation of the program's benefits, costs and overall 'return on investment' (ROI). The program was designed to help build emergent leadership capacity in the water industry, given strong evidence that this form of leadership plays an important role in advancing SUWM. It involved '360-degree feedback' processes, training, individual leadership development plans, and coaching sessions. Its design was informed by a review of the literature, and its content was informed by local empirical research involving effective SUWM leaders. The evaluation used a seven-tier assessment framework that examined different dimensions of the program's performance using source and methodological triangulation. The results indicate that such LDPs can produce a range of positive outcomes, such as promoting desired leadership behaviours and generating a positive ROI estimate. Specifically, the program's estimated ROI was approximately 190% after only one year. The primary conclusion is that evidence-based LDPs which are highly customised for specific types of leaders in the water industry represent a promising type of intervention to build forms of leadership capacity which are needed to successfully promote SUWM.

  13. An N-body Integrator for Gravitating Planetary Rings, and the Outer Edge of Saturn's B Ring

    CERN Document Server

    Hahn, Joseph M


    A new symplectic N-body integrator is introduced, one designed to calculate the global 360 degree evolution of a self-gravitating planetary ring that is in orbit about an oblate planet. This freely-available code is called epi_int, and it is distinct from other such codes in its use of streamlines to calculate the effects of ring self-gravity. The great advantage of this approach is that the perturbing forces arise from smooth wires of ring matter rather than discreet particles, so there is very little gravitational scattering and so only a modest number of particles are needed to simulate, say, the scalloped edge of a resonantly confined ring or the propagation of spiral density waves. The code is applied to the outer edge of Saturn's B ring, and a comparison of Cassini measurements of the ring's forced response to simulations of Mimas' resonant perturbations reveals that the B ring's surface density at its outer edge is 195+-60 gm/cm^2 which, if the same everywhere across the ring would mean that the B ring...

  14. Light field rendering with omni-directional camera (United States)

    Todoroki, Hiroshi; Saito, Hideo


    This paper presents an approach to capture visual appearance of a real environment such as an interior of a room. We propose the method for generating arbitrary viewpoint images by building light field with the omni-directional camera, which can capture the wide circumferences. Omni-directional camera used in this technique is a special camera with the hyperbolic mirror in the upper part of a camera, so that we can capture luminosity in the environment in the range of 360 degree of circumferences in one image. We apply the light field method, which is one technique of Image-Based-Rendering(IBR), for generating the arbitrary viewpoint images. The light field is a kind of the database that records the luminosity information in the object space. We employ the omni-directional camera for constructing the light field, so that we can collect many view direction images in the light field. Thus our method allows the user to explore the wide scene, that can acheive realistic representation of virtual enviroment. For demonstating the proposed method, we capture image sequence in our lab's interior environment with an omni-directional camera, and succesfully generate arbitray viewpoint images for virual tour of the environment.

  15. Partial versus complete fundoplication for the correction of pediatric GERD: a systematic review and meta-analysis.

    Directory of Open Access Journals (Sweden)

    Peter Glen

    Full Text Available There is no consensus as to what extent of "wrap" is required in a fundoplication for correction of gastroesophageal reflux disease (GERD.To evaluate if a complete (360 degree or partial fundoplication gives better control of GERD.A systematic search of MEDLINE and Scopus identified interventional and observational studies of fundoplication in children. Screening identified those comparing techniques. The primary outcome was recurrence of GERD following surgery. Dysphagia and complications were secondary outcomes of interest. Meta-analysis was performed when appropriate. Study quality was assessed using the Cochrane Risk of Bias Tool.2289 abstracts were screened, yielding 2 randomized controlled trials (RCTs and 12 retrospective cohort studies. The RCTs were pooled. There was no difference in surgical success between partial and complete fundoplication, OR 1.33 [0.67,2.66]. In the 12 cohort studies, 3 (25% used an objective assessment of the surgery, one of which showed improved outcomes with complete fundoplication. Twenty-five different complications were reported; common were dysphagia and gas-bloat syndrome. Overall study quality was poor.The comparison of partial fundoplication with complete fundoplication warrants further study. The evidence does not demonstrate superiority of one technique. The lack of high quality RCTs and the methodological heterogeneity of observational studies limits a powerful meta-analysis.

  16. A Model for Information Integration Using Service Oriented Architectur

    Directory of Open Access Journals (Sweden)

    C. Punitha Devi


    Full Text Available Business agility remains to be the keyword that drives the business into different directions and enabling a 360 degree shift in the business process. To achieve agility the organization should work on real time information and data. The need to have instant access to information appears to be ever shine requirement of all organizations or enterprise. Access to information does not come directly with a single query but a complex process termed Information integration. Information integration has been in existence for the past two decades and has been progressive up to now. The challenges and issues keep on persisting as information integration problem evolves by itself. This paper addresses the issues in the approaches, techniques and models pertaining to information integration and identifies the problem for a need for a complete model. As SOA is the architectural style that is changing the business patterns today, this paper proposes a service oriented model for information integration. The model mainly focuses on giving a complete structure for information integration that is adaptable to any environment and open in nature. Here information is converted into service and then the information services are integrated through service oriented integration to provide the integrated information also as service.

  17. Analyses of the global geopotential models and different sources of gravity field elements used to reductions of geodetic observations (United States)

    Olszak, Tomasz; Jackiewicz, Małgorzata; Margański, Stanisław


    For reductions of geodetic observations onto geoid and ellipsoid (eg. astronomical coordinates, deflections of the vertical, astronomical azimuth and linear measurements) it is necessary a knowledge of the gravity field parameters. Also, in the leveling network it is necessary to collect such information to calculate the normal (or orthometric) correction. The poster provides an assessment of the available gravity data sources for use in the reduction of mentioned observations. As a such source it is understood of direct measurements, the interpolated anomalies of the existing gravity data sets and a calculateion them based on geopotential models. The study included field data, data from the Polish National Geological Institute including anomalies used for interpolation, and data from the model Earth Gravitational Model 2008 (EGM2008) in full form and truncated to 360 degree and order. In the case of the normal corrections mentioned sources also are analyzed in comparison with the values measured Faye's anomalies on selected benchmarks of leveling lines in various Polish regions. The paper shows the requirements of precision to be met by gravimetric data to provide by the required technical instructions. It was found that for 90% of the Polish it is possible to dispense with the measured data to the data generated from the geopotential model while maintaining the sufficient accuracy. For mountain areas, however, it is necessary to use the natural elements of the gravity field determined only by direct measurements.

  18. Dynamic Modelling of a CPG-Controlled Amphibious Biomimetic Swimming Robot

    Directory of Open Access Journals (Sweden)

    Rui Ding


    Full Text Available This paper focuses on the modelling and control problems of a self‐propelled, multimodal amphibious robot. Inspired by the undulatory body motions of fish and dolphins, the amphibious robot propels itself underwater by oscillations of several modular fish‐like propelling units coupled with a pair of pectoral fins capable of non‐continuous 360 degree rotation. In order to mimic fish‐like undulating propulsion, a control architecture based on Central Pattern Generator (CPG is applied to the amphibious robot for robust swimming gaits, including forward and backward swimming and turning, etc. With the simplification of the robot as a multi‐link serial mechanism, a Lagrangian function is employed to establish the hydrodynamic model for steady swimming. The CPG motion control law is then imported into the Lagrangian‐based dynamic model, where an associated system of kinematics and dynamics is formed to solve real‐time movements and, further, to guide the exploration of the CPG parameters and steady locomotion gaits. Finally, comparative results between the simulations and experiments are provided to show the effectiveness of the built control models.

  19. Optoacoustic angiography of peripheral vasculature (United States)

    Ermilov, Sergey; Su, Richard; Zamora, Mario; Hernandez, Travis; Nadvoretsky, Vyacheslav; Oraevsky, Alexander


    We developed a new optoacoustic microangiography system (OmAS) intended for in-vivo vascular imaging of a human finger. The system employs an arc-shaped acoustic array that is rotated 360 degrees around the finger providing optoacoustic data necessary for tomographic reconstruction of the three-dimensional images of a finger. A near-infrared Q-switched laser is used to generate optoacoustic signals with increased contrast of blood vessels. The laser is coupled through two randomized fiberoptic bundles oriented in orthogonal optoacoustic mode. To demonstrate OmAS capabilities, we present a time-series of optoacoustic images of a human finger taken after the hypothermia stress test. The images show a detailed vascular anatomy of a finger down to the capillary level. A series of quick 30s scans allowed us to visualize the thermoregulatory response within the studied finger as it was manifested via vasomotor activity during the hypothermia recovery. We propose that the developed system can be used for diagnostics of various medical conditions that are manifested in change of the peripheral (finger) blood flow. Examples of the medical conditions that could be diagnosed and staged using the OmAS include the peripheral arterial disease (PAD), thrombosis, frostbite, and traumas.

  20. 物流企业人力资源准备度评价指标体系的构建%Establishment of Human Resources Preparation Level Assessment Index System of Logistics Enterprises

    Institute of Scientific and Technical Information of China (English)



    通过对物流企业人员流失和人力资源准备度进行分析,基于平衡计分卡和360度考核方法构建了物流企业人力资源准备度的关键绩效考核指标,通过对指标的量化考核,不断完善企业人力资源准备度相关流程,最终提高物流企业人力资源准备度的有效性。%In this paper, through analyzing the turnover and preparedness of the human resources of the logistics enterprises, we built the key performance examination system of the human resources preparation level of the logistics enterprises on the basis of the balanced scorecard process and 360 degrees examination system and next quantified the examination indexes to improve the human resources preparation process of the enterprises.

  1. Corporate psychopathy: Talking the walk. (United States)

    Babiak, Paul; Neumann, Craig S; Hare, Robert D


    There is a very large literature on the important role of psychopathy in the criminal justice system. We know much less about corporate psychopathy and its implications, in large part because of the difficulty in obtaining the active cooperation of business organizations. This has left us with only a few small-sample studies, anecdotes, and speculation. In this study, we had a unique opportunity to examine psychopathy and its correlates in a sample of 203 corporate professionals selected by their companies to participate in management development programs. The correlates included demographic and status variables, as well as in-house 360 degrees assessments and performance ratings. The prevalence of psychopathic traits-as measured by the Psychopathy Checklist-Revised (PCL-R) and a Psychopathy Checklist: Screening Version (PCL: SV) "equivalent"-was higher than that found in community samples. The results of confirmatory factor analysis (CFA) and structural equation modeling (SEM) indicated that the underlying latent structure of psychopathy in our corporate sample was consistent with that model found in community and offender studies. Psychopathy was positively associated with in-house ratings of charisma/presentation style (creativity, good strategic thinking and communication skills) but negatively associated with ratings of responsibility/performance (being a team player, management skills, and overall accomplishments).

  2. 二进制数控电桥测室温%Measurement on Indoor Temperature by Binary Digital Bridge

    Institute of Scientific and Technical Information of China (English)

    刘伟; 张昌民; 郭立新; 李平舟


    传统惠斯登电桥受限于电阻箱的测量精度,往往无法准确测量温度。根据二进制数控R-2R电阻网络的伏安特性,把R-2R电阻网络作为惠斯登电桥的比例臂,通过12个手动开关(或者360度旋转编码器)调节比例臂电阻的比值以实现电桥的平衡。并通过运算放大器调节检流计灵敏度以测量PT100的阻值,从而实现对室内温度的精确测量。%It is difficult to measure the precision indoor temperature with traditional Wheatstone bridge limited by measurement precision of the resistance box. According to the volt ampere characteristic of the Binary Digital R-2R resistor network,the balance of the bridge is realized by 12 manual switch( or 360 degree rotary encoder) to change the arm resistance which is the R-2R resistor network. The resistance of the PT100 is meas-ured by the operational amplifier which raised the galvanometer sensitivity,so the accurate measurement of the indoor temperature is achieved.

  3. MAPCERN links to Google Street View

    CERN Multimedia

    Matilda Heron


    CERN’s online maps, MAPCERN, now have the added bonus of Google Street View, thanks to the new release of images of many CERN sites captured by Google.   New Street View images of CERN sites have been added to MAPCERN, see bottom-right-hand image in the screenshot above.   Google Street View, an integrated service of Google Maps introduced in 2007, links 360-degree panoramic photos into a virtual tour. CERN and Google began collaborating on this Street View project in 2010 and now these Street View images have been embedded into MAPCERN, accessible by clicking the “Street View” tab in MAPCERN’s bottom-right-hand window. If you need to locate a building at CERN, or plan an operation on some equipment, you can save time by using the Street View images to check out the area in advance. The CERN Meyrin site has been fully mapped, as well as the surfaces of the eight LHC points, BA2 and BA3. New Street View images of CERN, including the Pr...

  4. Choice of velocity variables for complex flow computation (United States)

    Shyy, W.; Chang, G. C.


    The issue of adopting the velocity components as dependent velocity variables for the Navier-Stokes flow computations is investigated. The viewpoint advocated is that a numerical algorithm should preferably honor both the physical conservation law in differential form and the geometric conservation law in discrete form. With the use of Cartesian velocity vector, the momentum equations in curvilinear coordinates can retain the full conservation-law form and satisfy the physical conservation laws. With the curvilinear velocity components, source terms appear in differential equations and hence the full conservation law form can not be retained. In discrete expressions, algorithms based on the Cartesian components can satisfy the geometric conservation-law form for convection terms but not for viscous terms; those based on the curvilinear components, on the other hand, cannot satisfy the geometric conservation-law form for either convection or viscous terms. Several flow solutions for domain with 90 and 360 degree turnings are presented to illustrate the issues of using the Cartesian velocity components and the staggered grid arrangement.

  5. A Mystery of Bilateral Annular Choroidal and Exudative Retinal Detachment with No Systemic Involvement: Is It Part of Vogt-Koyanagi-Harada Disease Spectrum or a New Entity? (United States)

    Elaraoud, Ibrahim; Andreatta, Walter; Jiang, Li; Damer, Kenan; Al-Ibrahim, Jalil


    A 65-year-old Caucasian male presented to the eye emergency department with bilateral significant visual loss. He was otherwise healthy with no significant past medical history. Ophthalmic history was significant for chronic open-angle glaucoma, for which the patient was using latanoprost once daily to both eyes. There was no preceding history of trauma or ocular surgery and the patient was emmetropic. Two weeks prior to his presentation, he reported a headache, which settled spontaneously. Slit-lamp examination demonstrated bilateral keratic precipitates, bilateral significantly shallow anterior chamber, and bilaterally normal intraocular pressures of 16 mm Hg. Fundal examination was significant for bilateral 360-degree choroidal detachments with exudative retinal detachment involving the maculae. These findings were confirmed using wide-field fundus photography, B-scan ultrasonography, and optical coherence tomography. Fundus fluorescein angiography did not reveal any evidence of retinal vasculitis. Indocyanine green chorioangiography of the posterior pole showed multiple areas of focal choroidal hypoperfusion. Extensive systemic investigation demonstrated no infectious, neoplastic, or inflammatory cause, and the patient did not complain of any systemic symptoms. Treatment with high-dose intravenous methylprednisolone was administered and this brought about complete resolution of both choroidal and retinal detachments, with partial visual recovery.

  6. HF Radar Signal Processing Based on Tomographic Imaging and CS Technique

    Directory of Open Access Journals (Sweden)

    Qiang Yang


    Full Text Available This study presents the application of a spotlight-mode synthetic aperture radar (SAR imaging technique to the problem of high probablity target detection in high frequency (HF radar system, attempting to improve its spatial resolution. The effects of finite aperture on resolution, sampling constraints and reconstruction over a complete angular range of 360 degrees are discussed. A Convolution Back Projection (CBP algorithm has been applied to image reconstruction. In order to solve the range limitation of aspect angle with one radar-carrying platform, we collect data over a larger azimuthal range by making multi-aspect observations. Each straight line is a sub aperture over which we can perform the CBP algorithm. When we demand higher resolution for stationary target, it will cause blur with longer data acquisition time. Thus the application of the traditional imaging algorithm is limited. Compressed Sensing (CS has recently attracted much interest as it can reduce the number of samples without compromising the imaging quality. Within this motivation, we discuss the applicability of CS and present the application constraint for HF radar system.

  7. Limbal Stem Cell-Sparing Corneoscleroplasty with Peripheral Intralamellar Tuck: A New Surgical Technique for Keratoglobus

    Directory of Open Access Journals (Sweden)

    Elias Jarade


    Full Text Available Purpose: To describe the technique of limbal stem cell-sparing corneoscleroplasty for the management of advanced keratoglobus. Methods: A patient with bilateral advanced keratoglobus, with best-corrected visual acuity of 20/400 in the right eye and 20/200 in the left eye, underwent limbal stem cell-sparing corneoscleroplasty of the right eye. Initially, a 360-degree limbal incision with 200-μm depth was created, followed by a sublimbal tunnel dissection into the sclera, in order to conserve stem cells. Next, a limbus-to-limbus lamellar keratectomy at 200-μm depth was performed. Meanwhile, a donor corneoscleral button with preserved endothelium of the central 8 mm was fashioned. Prior to suturing the donor corneoscleral graft using a modified suturing technique to cover its scleral component, a full-thickness trephination of 8-mm diameter was completed in the central host cornea. Results: Reepithelialization occurred within the first week. No episodes of rejection, intraocular pressure spikes, or epithelial breakdown were observed postoperatively. At the 6-month follow-up, the patient had 20/70 best-corrected vision and a smooth cornea with regular astigmatism on topography. Conclusion: Limbal stem cell-sparing corneoscleroplasty is a single-step technique for restoring the structural integrity of the cornea in advanced keratoglobus while preserving the host limbal stem cells.

  8. Stromal lamellar dissection of the donor disc: a technique to reduce complications secondary to eccentric trephination during descemet stripping automated endothelial keratoplasty. (United States)

    Lichtinger, Alejandro; Yeung, Sonia N; Kim, Peter; Amiran, Maoz D; Sinha, Rajesh; Rootman, David S


    To describe a surgical technique to decrease the incidence and potential complications of an eccentric trephination and improve graft adherence during Descemet stripping automated endothelial keratoplasty. Technique description. After resection of the anterior lamella with the microkeratome, the corneoscleral rim in the artificial anterior chamber (AC) is brought under view of the operating microscope and the deep dissection plane of the microkeratome is extended 360 degrees as far peripherally as permitted by the Moria artificial anterior chamber using a crescent blade and 0.12-mm Colibri forceps. The central stroma is marked with gentian violet, and the donor button is released from the AC and then carefully placed and centered on the punching block endothelial side up using the gentian violet mark as a guide and trephined to the desired diameter. The donor graft may then be inserted by the surgeon's preferred technique. This simple technique allows the surgeon to consistently increase the lamellar dissection diameter while reducing the peripheral graft thickness, which becomes particularly important when the trephination is eccentric. This technique may lead to improved donor adherence and a decrease in the incidence of donor lenticule configuration -related complications.

  9. Full-Range Public Health Leadership, Part 1: Quantitative Analysis

    Directory of Open Access Journals (Sweden)

    Erik L. Carlton


    Full Text Available Background. Workforce and leadership development are central to the future of public health. However, public health has been slow to translate and apply leadership models from other professions and to incorporate local perspectives in understanding public health leadership. Purpose. This study utilized the full-range leadership model in order to examine public health leadership. Specifically, it sought to measure leadership styles among local health department directors and to understand the context of leadership local health departments.Methods. Leadership styles among local health department directors (n=13 were examined using survey methodology. Quantitative analysis methods included descriptive statistics, boxplots, and Pearson bivariate correlations using SPSS v18.0. Findings. Self-reported leadership styles were highly correlated to leadership outcomes at the organizational level. However, they were not related to county health rankings. Results suggest the preeminence of leader behaviors and providing individual consideration to staff as compared to idealized attributes of leaders, intellectual stimulation, or inspirational motivation. Implications. Holistic leadership assessment instruments, such as the Multifactor Leadership Questionnaire (MLQ can be useful in assessing public health leaders approaches and outcomes. Comprehensive, 360-degree reviews may be especially helpful. Further research is needed to examine the effectiveness of public health leadership development models, as well as the extent that public health leadership impacts public health outcomes.

  10. Mars Cameras Make Panoramic Photography a Snap (United States)


    If you wish to explore a Martian landscape without leaving your armchair, a few simple clicks around the NASA Web site will lead you to panoramic photographs taken from the Mars Exploration Rovers, Spirit and Opportunity. Many of the technologies that enable this spectacular Mars photography have also inspired advancements in photography here on Earth, including the panoramic camera (Pancam) and its housing assembly, designed by the Jet Propulsion Laboratory and Cornell University for the Mars missions. Mounted atop each rover, the Pancam mast assembly (PMA) can tilt a full 180 degrees and swivel 360 degrees, allowing for a complete, highly detailed view of the Martian landscape. The rover Pancams take small, 1 megapixel (1 million pixel) digital photographs, which are stitched together into large panoramas that sometimes measure 4 by 24 megapixels. The Pancam software performs some image correction and stitching after the photographs are transmitted back to Earth. Different lens filters and a spectrometer also assist scientists in their analyses of infrared radiation from the objects in the photographs. These photographs from Mars spurred developers to begin thinking in terms of larger and higher quality images: super-sized digital pictures, or gigapixels, which are images composed of 1 billion or more pixels. Gigapixel images are more than 200 times the size captured by today s standard 4 megapixel digital camera. Although originally created for the Mars missions, the detail provided by these large photographs allows for many purposes, not all of which are limited to extraterrestrial photography.

  11. Synframe: a preliminary report. (United States)

    Aebi, M; Steffen, T


    Both endoscopic lumbar spinal surgery and the non-standardized and unstable retractor systems for the lumbar spine presently on the market have disadvantages and limitations in relation to the minimally invasive surgical concept, which have been gradually recognized in the last few years. In an attempt to resolve some of these issues, we have developed a highly versatile retractor system, which allows access to and surgery at the lumbar, thoracic and even cervical spine. This retractor system - Synframe - is based on a ring concept allowing 360 degrees access to a surgical opening in anterior as well as posterior surgery. The ring is concentrically laid over the surgical opening for the approach and is used as a carrier for retractor arms, which are instrumented with either different sizes or types of blades and/or different sizes of Hohmann hooks. In posterior surgery, nerve root retractors can also be installed. This ring also functions as a carrier for fiberoptic illumination devices and different sizes of endoscopes, used to transmit the surgical procedure out of the depth of the surgical exposure for both teaching purposes and for the surgical team when it has no longer direct visual access to the procedure. The ring is stable, being fixed onto the operating table, allowing precise minimally open approaches and surgical procedures under direct vision with optimal illumination. This ring system also opens perspectives for an integrated minimally open surgical concept, where the ring may be used as a reference platform in computer-navigated surgery.


    Directory of Open Access Journals (Sweden)

    Ebert Guimarães


    Full Text Available In the information society, knowledge belonging to the scientific and technological fields demands ever increasing updates in professionalization, specially higher schooling levels andtechnical and interpersonal skills. The purpose of this study is to evaluate the professional competence of graduates students earned course in Management of Technology in Industrial Production, byanalyzing a case study that takes into account the tasks set by the Course Management of Technology in Industrial Production UNINCOR. The subjects were ten graduates (alumni, eleven teachers, fiveteachers teaching the core course, the course coordinator, in charge of Educational and Extension Campus Director General of Betim, in charge of the 72 partner companies / suppliers FIAT Cars S. A.and two managers of the Magna auto parts, which totaled 32 people. The responses of these subjects were submitted to an analysis model that can be called 360-degree vision. The analysis of qualitativedata referenda and allows better understanding of the issues involved in the skills identified. It is possible to conclude that there is a recognition in all groups surveyed about the effectiveness of the course in its purpose to understand the demands and difficulties of the areas of the industrial manager.

  13. AIS Algorithm for Smart Antenna Application in WLAN

    Directory of Open Access Journals (Sweden)

    Evizal Abdul Kadir


    Full Text Available Increasing numbers of wireless local area networks (WLAN replacing wired networks have an impact on wireless network systems, causing issues such as interference. The smart antenna system is a method to overcome interference issues in WLANs. This paper proposes an artificial immune system (AIS for a switch beam smart antenna system. A directional antenna is introduced to aim the beam at the desired user. The antenna consists of 8 directional antennas, each of which covers 45 degrees, thus creating an omnidirectional configuration of which the beams cover 360 degrees. To control the beam switching, an inexpensive PIC 16F877 microchip was used. An AIS algorithm was implemented in the microcontroller, which uses the received radio signal strength of the mobile device as reference. This is compared for each of the eight beams, after which the AIS algorithm selects the strongest signal received by the system and the microcontroller will then lock to the desired beam. In the experiment a frequency of 2.4 GHz (ISM band was used for transmitting and receiving. A test of the system was conducted in an outdoor environment. The results show that the switch beam smart antenna worked fine based on locating the mobile device.

  14. Holodeck: Telepresence Dome Visualization System Simulations (United States)

    Hite, Nicolas


    This paper explores the simulation and consideration of different image-projection strategies for the Holodeck, a dome that will be used for highly immersive telepresence operations in future endeavors of the National Aeronautics and Space Administration (NASA). Its visualization system will include a full 360 degree projection onto the dome's interior walls in order to display video streams from both simulations and recorded video. Because humans innately trust their vision to precisely report their surroundings, the Holodeck's visualization system is crucial to its realism. This system will be rigged with an integrated hardware and software infrastructure-namely, a system of projectors that will relay with a Graphics Processing Unit (GPU) and computer to both project images onto the dome and correct warping in those projections in real-time. Using both Computer-Aided Design (CAD) and ray-tracing software, virtual models of various dome/projector geometries were created and simulated via tracking and analysis of virtual light sources, leading to the selection of two possible configurations for installation. Research into image warping and the generation of dome-ready video content was also conducted, including generation of fisheye images, distortion correction, and the generation of a reliable content-generation pipeline.

  15. Test and evaluation of panoramic imaging security sensor for force protection and facility security

    Energy Technology Data Exchange (ETDEWEB)

    Pritchard, D.A.; White, R.L.; Adams, D.G.; Kruase, E.; Fox, E.T.; Ladd, M.D.; Heintzleman, R.E.; Sprauer, P.C. [Sandia National Labs., Albuquerque, NM (United States); MacEachin, J.J. [Raytheon Systems Co., Mahwah, NJ (United States)


    This paper describes the design and preliminary test results of a 360-degree scanning, multispectral intrusion detection sensor. This moderate-resolution, panoramic imaging sensor is intended for exterior use at ranges from 50 to 1500 meters. This Advanced Exterior Sensor (AES) uses three sensing technologies (infrared, visible, and radar), separate track processors and sensor fusion to provide low false-alarm intrusion detection, tracking, and immediate visual assessment. The images from the infrared and visible detector sets and the radar range data are updated as the sensors rotate about once per second. The radar provides range data with one-meter resolution. This sensor has been designed for low-cost, easy use and rapid deployment to cover wide areas beyond, or in pace of, typical perimeters, and tactical applications around fixed or temporary high-value assets. A prototype AES has been developed and preliminary test results are presented. This sensor represents a growing trend to use low-cost thermal imaging sensors, combined with other devices and advanced processing, for protection of US military forces and other national assets.

  16. [Thermographic assessment of thermal effects of Er:YAG laser in periodontal surgery]. (United States)

    Zmuda, Stanisław; Ignatowicz, Elzbieta; Stankiewicz, Justyna; Marczyńiska-Stolarek, Magdalena; Dabrowski, Mirosław


    An assessment of thermal effect of Er:YAG laser (KEYII, KaVo) on oral soft tissues in select procedures. Experimental researches were carried out on Wistar rats. To measure the temperature changes the thermal imaging camera (ThermaCAM SC3000, FLIR Systems) was used. There has been a significant increase of temperature observed on the end of optical fibre: the mean temperature ranged from 270 to 360 degrees C (at laser energy of 100 mJ and repetition rate of 25 Hz) and from 230 to 290 degrees C (300 mJ, 15 Hz). On the surface of oral mucosa thermal changes at the time of laser frenulectomy was analysed along the line of incision. The temperature above 50 degrees C was recorded on the length of 2 mm (at 100 mJ) and 3 mm (at 300 mJ). The temperature maintained on this level for about 0.4 s. On the surface of tongue during lingual mucosa excision the temperature above 40 degrees C was observed on the length of 1.6 mm (80 mJ, 2 Hz) or 2.5 mm (160 mJ, 2 Hz). The rate of cooling for both cases was lower than 0.5 s. To prevent undesirable thermal side effects from an Er:YAG laser optical fibre should be moved very fluently in non-contact mode.

  17. AUGUSTO'S Sundial: Image-Based Modeling for Reverse Engeneering Purposes (United States)

    Baiocchi, V.; Barbarella, M.; Del Pizzo, S.; Giannone, F.; Troisi, S.; Piccaro, C.; Marcantonio, D.


    A photogrammetric survey of a unique archaeological site is reported in this paper. The survey was performed using both a panoramic image-based solution and by classical procedure. The panoramic image-based solution was carried out employing a commercial solution: the Trimble V10 Imaging Rover (IR). Such instrument is an integrated cameras system that captures 360 degrees digital panoramas, composed of 12 images, with a single push. The direct comparison of the point clouds obtained with traditional photogrammetric procedure and V10 stations, using the same GCP coordinates has been carried out in Cloud Compare, open source software that can provide the comparison between two point clouds supplied by all the main statistical data. The site is a portion of the dial plate of the "Horologium Augusti" inaugurated in 9 B.C.E. in the area of Campo Marzio and still present intact in the same position, in a cellar of a building in Rome, around 7 meter below the present ground level.

  18. Integration of Apollo Lunar Sample Data into Google Moon (United States)

    Dawson, Melissa D.; Todd, Nancy S.; Lofgren, Gary


    The Google Moon Apollo Lunar Sample Data Integration project is a continuation of the Apollo 15 Google Moon Add-On project, which provides a scientific and educational tool for the study of the Moon and its geologic features. The main goal of this project is to provide a user-friendly interface for an interactive and educational outreach and learning tool for the Apollo missions. Specifically, this project?s focus is the dissemination of information about the lunar samples collected during the Apollo missions by providing any additional information needed to enhance the Apollo mission data on Google Moon. Apollo missions 15 and 16 were chosen to be completed first due to the availability of digitized lunar sample photographs and the amount of media associated with these missions. The user will be able to learn about the lunar samples collected in these Apollo missions, as well as see videos, pictures, and 360 degree panoramas of the lunar surface depicting the lunar samples in their natural state, following collection and during processing at NASA. Once completed, these interactive data layers will be submitted for inclusion into the Apollo 15 and 16 missions on Google Moon.

  19. Qualitative versus Quantitative Evaluation of Scientists' Impact: A Medical Toxicology Tale

    Directory of Open Access Journals (Sweden)

    Reza Afshari


    Full Text Available Evaluation of scientists working in a specific area of science is necessary, as they may strive for same limited resources, grants and academic promotions. One of the most common and accepted methods of assessing the performance and impact of a scientist is calculating the number of citations for their publications. However, such method suffer from certain shortcomings. It has become more and more obvious that evaluation of scientists should be qualitative in addition to quantitative. Moreover, the evaluation process should be pragmatic and reflective of the priorities of an institution, a country or an intended population. In this context, a scoring scale called "360-degree researcher evaluation score" is proposed in this paper. Accordingly, scientists are evaluated in 5 independent domains including (I science development, (II economic impact, (III policy impact, (IV societal impact and (V stewardship of research. This scale is designed for evaluation of impacts resulted from research activities and thus it excludes the educational programs done by a scientist. In general, it seems necessary that the evaluation process of a scientist’s impact moves from only scintometric indices to a combination of quantitative and qualitative indices.

  20. Recovery of 29 s Oscillations in HST/FOS Eclipse Observations of the Cataclysmic Variable UX Ursae Majoris

    CERN Document Server

    Knigge, C; Long, K S; Wade, R A; Horne, K; Baptista, R


    [abridged abstract] Low amplitude (~=0.5%) 29-s oscillations have been detected in HST/FOS eclipse observations of the nova-like cataclysmic variable UX UMa. These are the same dwarf nova-type oscillations that were originally discovered in this system by Warner & Nather in 1972. The oscillations are sinusoidal to within the small observational errors and undergo an approximately -360 degree phase shift during eclipses. Their amplitudes are highest at pre-eclipse orbital phases and exhibit a rather gradual eclipse whose shape is roughly similar to UX~UMa's overall light curve. Oscillation spectra derived from pre-eclipse data segments are extremely blue, whereas mid-eclipse oscillation spectra are much redder. We suggest that the ultimate source of the oscillations is a hot, compact region near disk center, but that a significant fraction of the observed, modulated flux is due to reprocessing of the light emitted by this source in the accretion disk atmosphere. The compact source is occulted at orbital ph...

  1. [Artifactual defect of inferior myocardium on 123I-metaiodobenzylguanidine myocardial SPECT: characteristic findings and preventive method on phantom study]. (United States)

    Kobayashi, H; Terada, S; Kanaya, S; Kashikura, K; Momose, M; Hosoda, S; Kusakabe, K


    Discordance between planar and SPECT image of inferior myocardial defect on 123I-metaiodobenzylguanidine myocardial scintigraphy (MIBG) was occasionally observed in the clinical studies. The purpose of this study is to clarify the existence of artifactual myocardial defect on MIBG SPECT image. Phantom study was performed in various kinds of situation using triple gamma camera. Artifactual defect adjacent to the liver was significantly observed in the case of increased liver/heart uptake ratio more than 2:1. Artifactual defect was markedly observed in the 180 degrees than that in the 360 degrees SPECT acquisition. To avoid artifactual defect during SPECT acquisition, liver phantom was moved down to the foot direction (vanishing liver position). In this phantom position, artifactual defect adjacent to the liver was not observed on reconstructed myocardial SPECT image. The vanishing liver position was also applicable to human study. Human body was inclined to right side at an angle of 15 degrees, artifactual defect could be avoided. Further study is needed to analyze the cause of this artifactual defect and to conform the preventive method with vanishing liver position in the routine myocardial SPECT examination.

  2. [Automatic calculation of left ventricular volume and ejection fraction from gated myocardial perfusion SPECT--basic evaluation using phantom]. (United States)

    Kinoshita, Y; Nanbu, I; Tohyama, J; Ooba, S


    We evaluated accuracy of Quantitative Gated SPECT Program that enabled calculation of the left ventricular (LV) volume and ejection fraction by automatically tracing the contour of the cardiac surface. Cardiac phantoms filled with 99mTc-solution were used. Data acquisition was made by 180-degree projection in L type and 360-degree projection in opposed type. Automatic calculation could be done in all processes, which required 3-4 minutes. Reproducibility was sufficient. The adequate cut off value of a prefilter was 0.45. At this value LV volume was 93% of the actual volume in L type acquisition and 95.9% in opposed type acquisition. The LV volume obtained in L type was smaller than that obtained in opposed type (p defects was fair, on the cardiac phantoms with all of 90-degree defects and 180-degree defects of the septal and lateral wall. The LV volume was estimated to be larger on the phantom with 180-degree defect of the anterior wall, and to be smaller on the phantom of 180-degree defect of the inferoposterior wall. Because tracing was deviated anteriorly at the defects. In the patients with similar conditions to 180-degree defect of the anterior wall or inferoposterior wall, the LV volume should be carefully evaluated.

  3. Automatic calculation of left ventricular volume and ejection fraction from gated myocardial perfusion SPECT. Basic evaluation using phantom

    Energy Technology Data Exchange (ETDEWEB)

    Kinoshita, Yoshimi; Nanbu, Ichirou [Nagoya Daini Red Cross Hospital (Japan); Tohyama, Junko; Ooba, Satoru


    We evaluated accuracy of Quantitative Gated SPECT Program that enabled calculation of the left ventricular (LV) volume and ejection fraction by automatically tracing the contour of the cardiac surface. Cardiac phantoms filled with {sup 99m}Tc-solution were used. Data acquisition was made by 180-degree projection in L type and 360-degree projection in opposed type. Automatic calculation could be done in all processes, which required 3-4 minutes. Reproducibility was sufficient. The adequate cut off value of a prefilter was 0.45. At this value LV volume was 93% of the actual volume in L type acquisition and 95.9% in opposed type acquisition. The LV volume obtained in L type was smaller than that obtained in opposed type (p<0.05). The tracing of the defects was fair, on the cardiac phantoms with all of 90-degree defects and 180-degree defects of the septal and lateral wall. The LV volume was estimated to be larger on the phantom with 180-degree defect of the anterior wall, and to be smaller on the phantom of 180-degree defect of the inferoposterior wall. Because tracing was deviated anteriorly at the defects. In the patients with similar conditions to 180-degree defect of the anterior wall or inferoposterior wall, the LV volume should be carefully evaluated. (author)

  4. Artifactual defect of inferior myocardium on [sup 123]I-metaiodobenzylguanidine myocardial SPECT; Characteristic findings and preventive method on phantom study

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, Hideki; Terada, Shinichiro; Kanaya, Shinichi; Kashikura, Kenichi; Momose, Mitsuru; Hosoda, Saichi; Kusakabe, Kiyoko (Tokyo Women' s Medical Coll. (Japan))


    Discordance between planar and SPECT image of inferior myocardial defect on [sup 123]I-metaiodobenzylguanidine myocardial scintigraphy (MIBG) was occasionally observed in the clinical studies. The purpose of this study is to clarify the existence of artifactual myocardial defect on MIBG SPECT image. Phantom study was performed in various kinds of situation using triple gamma camera. Artifactual defect adjacent to the liver was significantly observed in the case of increased liver/heart uptake ratio more than 2:1. Artifactual defect was markedly observed in the 180 degree than that in the 360 degree SPECT acquisition. To avoid artifactual defect during SPECT acquisition, liver phantom was moved down to the foot direction (vanishing liver position). In this phantom position, artifactual defect adjacent to the liver was not observed on reconstructed myocardial SPECT image. The vanishing liver position was also applicable to human study. Human body was inclined to right side at an angle of 15 degree, artifactual defect could be avoided. Further study is needed to analyze the cause of this artifactual defect and to conform the preventive method with vanishing liver position in the routine myocardial SPECT examination. (author).

  5. Effects of spatially correlated acoustic-tactile information on judgments of auditory circular direction (United States)

    Cohen, Annabel J.; Lamothe, M. J. Reina; Toms, Ian D.; Fleming, Richard A. G.


    Cohen, Lamothe, Fleming, MacIsaac, and Lamoureux [J. Acoust. Soc. Am. 109, 2460 (2001)] reported that proximity governed circular direction judgments (clockwise/counterclockwise) of two successive tones emanating from all pairs of 12 speakers located at 30-degree intervals around a listeners' head (cranium). Many listeners appeared to experience systematic front-back confusion. Diametrically opposed locations (180-degrees-theoretically ambiguous direction) produced a direction bias pattern resembling Deutsch's tritone paradox [Deutsch, Kuyper, and Fisher, Music Percept. 5, 7992 (1987)]. In Experiment 1 of the present study, the circular direction task was conducted in the tactile domain using 12 circumcranial points of vibration. For all 5 participants, proximity governed direction (without front-back confusion) and a simple clockwise bias was shown for 180-degree pairs. Experiment 2 tested 9 new participants in one unimodal auditory condition and two bimodal auditory-tactile conditions (spatially-correlated/spatially-uncorrelated). Correlated auditory-tactile information eliminated front-back confusion for 8 participants and replaced the ``paradoxical'' bias for 180-degree pairs with the clockwise bias. Thus, spatially correlated audio-tactile location information improves the veridical representation of 360-degree acoustic space, and modality-specific principles are implicated by the unique circular direction bias patterns for 180-degree pairs in the separate auditory and tactile modalities. [Work supported by NSERC.

  6. Geotail Observations of the Spatial Dependence of Kelvin-Helmholtz Waves on an Inbound Passage through the Dusk Flank Boundary Layer (United States)

    Fairfield, D. H.; Farrugia, C. J.; Gratton, F. T.; Mukai, T.; Nagai, T.


    On August 1, 1998, the Geotail spacecraft made an inbound passage perpendicular to the dusk magnetopause at the dusk terminator when the interplanetary magnetic field had been very northward for more than 10 hours. Typical 3-minute-period Kelvin-Helmholtz waves were observed and the density in the boundary layer and magnetopause was observed to have an unusually high value near 5 /cc. Compressible MHD calculations using the measured values at Geotail yield substantial growth rates that support the idea that the magnetopause was Kelvin-Helmholtz unstable. In contrast to many previous events where a spacecraft remained in the boundary layer, this passage allowed study of how the waves varied with distance inward from the magnetopause. In a layer adjacent to the magnetosheath, rapid magnetic field fluctuations were seen with variations of at least 50 nT/s. Initially the boundary waves led to transitions between the magnetosheath and the fluctuating region with magnetosheath-like densities and tailward velocities, but as the spacecraft moved inward, the transitions were more likely to be between the fluctuating region and a hotter region with magnetosphere-like densities of 5kc. Gradually the velocity perturbations began to exhibit 360 degree rotations. Such rotations are similar to the vortices seen earlier by the ISEE spacecraft throughout the magnetotail which were suspected of being caused by Kelvin-Helmholtz instability of the boundary.

  7. Argon laser iridoplasty : A primary mode of therapy in primary angle closure glaucoma

    Directory of Open Access Journals (Sweden)

    Agarwal H


    Full Text Available Argon laser iridoplasty was performed in 40 eyes of 33 patients of primary angle closure glaucoma. There were 12 male and 21 female patients. The mean ages of the male and female patients were 51 years and 48.4 years respectively. Forty eyes were divided into two groups. Group I consisted of ten eyes of subacute angle closure glaucoma and group II included thirty eyes of chronic angle closure glaucoma. Argon laser iridoplasty was performed with Coherent 9000 model using laser settings of spot size 200 micron, duration 0.2 second and power 0.7 watt. A total of 80 spots were applied over 360 degree circumference. The intraocular pressure control (below 22 mm Hg was achieved after iridoplasty in all the eyes (100% in group I, where as in group II the intraocular pressure was controlled in 70% eyes. The follow up period varied from 3 months to one year with a mean of eight months. The success rate with iridoplasty was directly related to the extent of peripheral anterior synechiae, optic disc cupping and presence of visual field changes.

  8. A Study of Lane Detection Algorithm for Personal Vehicle (United States)

    Kobayashi, Kazuyuki; Watanabe, Kajiro; Ohkubo, Tomoyuki; Kurihara, Yosuke

    By the word “Personal vehicle”, we mean a simple and lightweight vehicle expected to emerge as personal ground transportation devices. The motorcycle, electric wheelchair, motor-powered bicycle, etc. are examples of the personal vehicle and have been developed as the useful for transportation for a personal use. Recently, a new types of intelligent personal vehicle called the Segway has been developed which is controlled and stabilized by using on-board intelligent multiple sensors. The demand for needs for such personal vehicles are increasing, 1) to enhance human mobility, 2) to support mobility for elderly person, 3) reduction of environmental burdens. Since rapidly growing personal vehicles' market, a number of accidents caused by human error is also increasing. The accidents are caused by it's drive ability. To enhance or support drive ability as well as to prevent accidents, intelligent assistance is necessary. One of most important elemental functions for personal vehicle is robust lane detection. In this paper, we develop a robust lane detection method for personal vehicle at outdoor environments. The proposed lane detection method employing a 360 degree omni directional camera and unique robust image processing algorithm. In order to detect lanes, combination of template matching technique and Hough transform are employed. The validity of proposed lane detection algorithm is confirmed by actual developed vehicle at various type of sunshined outdoor conditions.

  9. Stopped-Rotor Cyclocopter for Venus Exploration (United States)

    Husseyin, Sema; Warmbrodt, William G.


    The cyclocopter system can use two or more rotating blades to create lift, propulsion and control. This system is explored for its use in a mission to Venus. Cyclocopters are not limited to speed and altitude and can provide 360 degrees of vector thrusting which is favorable for good maneuverability. The novel aspect of this study is that no other cyclocopter configuration has been previously proposed for Venus or any (terrestrial or otherwise) exploration application where the cyclocopters rotating blades are stopped, and act as fixed wings. The design considerations for this unique planetary aerial vehicle are discussed in terms of implementing the use of a cyclorotor blade system combined with a fixed wing and stopped rotor mechanism. This proposed concept avoids many of the disadvantages of conventional-rotor stopped-rotor concepts and accounts for the high temperature, pressure and atmospheric density present on Venus while carrying out the mission objectives. The fundamental goal is to find an ideal design that implements the combined use of cyclorotors and fixed wing surfaces. These design concepts will be analyzed with the computational fluid dynamics tool RotCFD for aerodynamic assessment. Aspects of the vehicle design is 3D printed and tested in a small water tunnel or wind tunnel.

  10. 基于Vega Prime的多通道三维仿真系统的实现%The implementation of multi-channel three-dimensional simulation system based on vega prime

    Institute of Scientific and Technical Information of China (English)

    赵必厦; 冯开平; 罗立宏


    The software system of 360 Degree Virtual Experience Zone, which was presented in Guangzhou Case Pavilion of Expo 2010 Shanghai China, is taken as a prototype in order to describe the implementation of multi-channel three-dimensional simulation system based on Vega Prime. First, the system is outlined with the description of the implementation principle and development process, and then the implementation of system is discussed with emphasis on the three main steps which are three-dimensional modeling, simulation system building and scene editing, demonstration effect and technical points in the stand-alone presentation are presented with the comparison of the new system and the old one.%论文以2010年上海世博会广州案例馆360度内环幕虚拟体验区的软件系统为原型,叙述了基于Vega Prime的多通道三维仿真系统的实现.首先对系统进行概述,描述了实现原理及开发流程,然后对系统实现展开讨论,重点叙述了三维建模、构建仿真系统、场景编辑3个主要的步骤,给出单机演示的技术要点及演示效果,并把新旧系统做了对比.

  11. Nyquist WDM superchannel using offset-16QAM and receiver-side digital spectral shaping. (United States)

    Xiang, Meng; Fu, Songnian; Tang, Ming; Tang, Haoyuan; Shum, Perry; Liu, Deming


    The performance of Nyquist WDM superchannel using advanced modulation formats with coherent detection is degraded due to the existence of both inter-symbol interference (ISI) and inter-channel interference (ICI). Here, we propose and numerically investigate a Nyquist WDM superchannel using offset-16QAM and receiver-side digital spectral shaping (RS-DSS), achieving a spectral efficiency up to 7.44 bit/s/Hz with 7% hard-decision forward error correction (HD-FEC) overhead. Compared with Nyquist WDM superchannel using 16QAM and RS-DSS, the proposed system has 1.4 dB improvement of required OSNR at BER = 10(-3) in the case of back-to-back (B2B) transmission. Furthermore, the range of launched optical power allowed beyond HD-FEC threshold is drastically increased from -6 dBm to 1.2 dBm, after 960 km SSMF transmission with EDFA-only. In particular, no more than 1.8 dB required OSNR penalty at BER = 10(-3) is achieved for the proposed system even with the phase difference between channels varying from 0 to 360 degree.

  12. SGDT伽马密度仪测井资料成像化处理%Image processing for logging data of SGDT gamma-density tool

    Institute of Scientific and Technical Information of China (English)

    何素文; 王慧萍; 龚佳; 张博


    文章分析了SGDT伽马密度测井仪器原理,运用三次样条函数插值方法对六个方位计数率数值进行插值处理,得到360度方位的连续变化的二维计数率曲线,对插值结果进行成像化处理,可以直观地显示套管周围的水泥密度变化趋势。%This paper introduces the principle of the SGDT Gamma density well logging tool.The cubic spline interpolation is used to process the numerical count rate of the six directions.Then we can obtain a continually changing two-dimensional curve with azimuth angle in 360 degree.After the interpolation results are imaged,the trend of the cement density around the casing can be seen clearly and visually.

  13. Dynamic response of the ITER tokamak during asymmetric VDEs

    Energy Technology Data Exchange (ETDEWEB)

    Schioler, Tyge, E-mail: [ITER Organization, CS 90 046, 13067 St. Paul lez Durance Cedex (France); Bachmann, Christian; Mazzone, Giuseppe; Sannazzaro, Giulio [ITER Organization, CS 90 046, 13067 St. Paul lez Durance Cedex (France)


    During the operational life of ITER, it is expected that a number of vertical displacement events (VDEs) will occur. A sub-class of these events, 'slow' asymmetric VDEs, is of particular interest from a structural point of view. This is because the forces generated during such events are both substantial and sufficiently long-lasting to significantly excite the structure. It is necessary to establish that the absolute and relative displacements of components, as well as internal and external forces, stay within acceptable limits during these events. Previous studies have investigated this problem using relatively simple models and non-rotating loads. A new, more detailed, 360-degree model was developed, and used to assess the effects of asymmetric VDEs. This paper presents the main results of this investigation. It is shown that the distance between the VV and the TFC at the inboard wall can decrease by as much as 19 mm at the equatorial plane, and that the vertical reaction force in the Vacuum Vessel supports can reach 15 MN.

  14. Thermal behaviour and kinetics of coal/biomass blends during co-combustion. (United States)

    Gil, M V; Casal, D; Pevida, C; Pis, J J; Rubiera, F


    The thermal characteristics and kinetics of coal, biomass (pine sawdust) and their blends were evaluated under combustion conditions using a non-isothermal thermogravimetric method (TGA). Biomass was blended with coal in the range of 5-80 wt.% to evaluate their co-combustion behaviour. No significant interactions were detected between the coal and biomass, since no deviations from their expected behaviour were observed in these experiments. Biomass combustion takes place in two steps: between 200 and 360 degrees C the volatiles are released and burned, and at 360-490 degrees C char combustion takes place. In contrast, coal is characterized by only one combustion stage at 315-615 degrees C. The coal/biomass blends presented three combustion steps, corresponding to the sum of the biomass and coal individual stages. Several solid-state mechanisms were tested by the Coats-Redfern method in order to find out the mechanisms responsible for the oxidation of the samples. The kinetic parameters were determined assuming single separate reactions for each stage of thermal conversion. The combustion process of coal consists of one reaction, whereas, in the case of the biomass and coal/biomass blends, this process consists of two or three independent reactions, respectively. The results showed that the chemical first order reaction is the most effective mechanism for the first step of biomass oxidation and for coal combustion. However, diffusion mechanisms were found to be responsible for the second step of biomass combustion.

  15. Automated security response robot (United States)

    Ciccimaro, Dominic A.; Everett, Hobart R.; Gilbreath, Gary A.; Tran, Tien T.


    ROBART III is intended as an advance demonstration platform for non-lethal response measures, extending the concepts of reflexive teleoperation into the realm of coordinated weapons control in law enforcement and urban warfare scenarios. A rich mix of ultrasonic and optical proximity and range sensors facilitates remote operation in unstructured and unexplored buildings with minimal operator supervision. Autonomous navigation and mapping of interior spaces is significantly enhanced by an innovative algorithm which exploits the fact that the majority of man-made structures are characterized by parallel and orthogonal walls. Extremely robust intruder detection and assessment capabilities are achieved through intelligent fusion of a multitude of inputs form various onboard motion sensors. Intruder detection is addressed by a 360-degree staring array of passive-IR motion detectors, augmented by a number of positionable head-mounted sensors. Automatic camera tracking of a moving target is accomplished using a video line digitizer. Non-lethal response systems include a six- barrelled pneumatically-powered Gatling gun, high-powered strobe lights, and three ear-piercing 103-decibel sirens.

  16. Recovery of interplanetary cosmic ray intensity following the great Forbush decrease of mid-1991 (United States)

    Van Allen, James A.


    There was a succession of major solar flares in late-May to mid-June 1991. Their effects on cosmic ray intensity were observed by six spacecraft at various points in the heliosphere and by terrestrial neutron monitors. Study of these observations is summarized as followed: (1) An abrupt and extraordinarily large Forbush decrease in intensity occurred at the Earth on day of year (DOY) 164/1993 (13 June) and ones of similar magnitude (approximately equal 20 percent) occurred in an orderly sequence of timing thereafter over ranges of heliocentric ecliptic longitude of essentially 360 degrees; of heliographic latitude +32 degrees to -5 degrees; and of radial distance 1.0 to 53 AU. (2) The apparent radial speed of propagation of the presumably causative blast wave was 865 (+/- 75)km/s. (3) It appears likely that the distinctive solar flare of DOY 162/1991 (11 June) was the dominant cause of the blast wave. Two different representations of the subsequent recoveries of intensity yield substantially different numerical values of 'recovery time' but either set of values shows an increase by a factor of about three between 1.0 and 53 AU.

  17. SPECT with N-isopropyl-p iodoamphetamine in occlusive cerebrovascular diseases. (United States)

    Higa, T; Tanaka, T; Ikekubo, K; Komatsu, T; Torizuka, K


    The role of SPECT imaging with N-isopropyl-p iodoamphetamine (I-123 IMP) in the detection of angiographically documented occlusive cerebrovascular diseases was evaluated in 24 patients, and the results of regional cerebral blood flow (rCBF) were compared with x-ray CT. Twelve patients had internal carotid occlusion, ten had intracranial occlusion beyond the circle of Willis, one had common carotid occlusion, and one had basilar artery occlusion. SPECT images were obtained with a gamma camera, which was rotated 360 degrees around the patient's head 30 minutes after an intravenous injection of 3 mCi of I-123 IMP. CT images in the transverse plane were obtained, and the regions of reduced attenuation were identified for comparison of topographic extension of the lesion with the regions of decreased rCBF seen on SPECT. In six cases, the lesions seen on the SPECT images were distinctly more extensive than those seen on CT. In the remaining 18 cases, the extent of the lesion was identical on both CT and SPECT images. Radiochemical and radionuclide impurities, the distance of the detector from the head, and the nature of the collimator affected the SPECT results. I-123 IMP SPECT imaging complements CT findings in detecting the ischemic zones beyond the regions identified on CT images, and may have a major rule in the management of patients with occlusive cerebrovascular diseases.

  18. Dosimetric characteristics of the Siemens IGRT carbon fiber tabletop. (United States)

    Spezi, Emiliano; Ferri, Andrea


    In this work, the dosimetric characteristics of a new commercial carbon fiber treatment table are investigated. The photon beam attenuation properties of the Siemens image-guided radiation therapy (IGRT) tabletop were studied in detail. Two sets of dosimetric measurements were performed. In the first experiment a polystyrene slab phantom was used: the central axis attenuation and the skin-sparing detriment were investigated. In the second experiment, the off-axis treatment table transmission was investigated using a polystyrene cylindrical phantom. Measurements were taken at the isocenter for a 360 degrees rotation of the radiation beam. Our results show that the photon beam attenuation of the Siemens IGRT carbon fiber tabletop varies from a minimum of 2.1% (central axis) to a maximum of 4.6% (120 degrees and 240 degrees beam incidence). The beam entrance dose increases from 82% to 97% of the dose at the depth of maximum for a clinical 6-MV radiation field. The depth of maximum also decreases by 0.4 cm. Despite the wedge cross section of the table the beam attenuation properties of the IGRT tabletop remain constant along the longitudinal direction. American Association of Medical Dosimetrists.

  19. Comparison of the marginal fit of pressable ceramic to metal ceramic restorations. (United States)

    Holden, Jason E; Goldstein, Gary R; Hittelman, Eugene L; Clark, Elizabeth A


    The aim of this in vitro study was to compare the marginal adaptation of a pressed ceramic material, when used with and without a metal substructure, to a traditional feldspathic porcelain-fused-to-metal restoration with a porcelain butt margin. A maxillary central incisor typodont tooth was prepared with a 1.5 mm 360 degrees shoulder with rounded internal line angle, and 30 polyether impressions were made. Dies were poured in type IV dental stone, and 30 restorations were fabricated: 10 metal ceramic restorations (MCR) with porcelain butt joints, 10 pressed to metal restorations (PTM), and 10 all-ceramic restorations (PCR). All restorations were evaluated on their respective dies at 45x magnification using an Olympus SZX-12, measurements of the marginal openings were made, and ANOVA and Scheffé post hoc tests were used to evaluate the data. The mean marginal opening was 72.2 +/- 5.9 microm for MCR, 49.0 +/- 5.9 microm for PTM, and 55.8 +/- 5.9 microm for PCR. The post hoc tests showed that there was a statistical difference between the marginal adaptation of the PTM and MCR groups (p < 0.05). There was no significant difference in marginal adaptation between the PTM and the PCR groups, or the PCR and the MCR groups. The PTM group demonstrated a smaller mean marginal opening than the MCR group. The mean marginal openings of all three groups were within a clinically acceptable range.

  20. Cylinder Block Fixture for Mistake Proofing.

    Directory of Open Access Journals (Sweden)



    Full Text Available The project idea basically developed from trunnion tables which are one type of fixture having ability to rotate about its axis and able to fix the component at any angle, so there is no requirement of angle plate and sine plates, drilling process is also computer controlled so no guide bush is required, So robust design for extra rigidity, flexibility and simple to use. In this project task is difficult as design rotary cage type fixture for component like cylinder block, which is heavy of 76 kg. it is not possible to rotate or handle component manually and proceed on them to make this process accident proof and automated for this purpose we are designing a rotary cage which rotate 360 degree and allow indexing to process on the component. Processes are to be operated on the component are drilling tapping and air blow washing ,Since drilling don’t need clamping here components self weight will enough to carry drilling force and tapping force coming through power tools. Therefore, rotary cage type fixture is critical importance.