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Sample records for group displayed higher

  1. Higher arithmetic Chow groups

    DEFF Research Database (Denmark)

    Gil, J. I. Burgos; Feliu, Elisenda

    2012-01-01

    We give a new construction of higher arithmetic Chow groups for quasi-projective arithmetic varieties over a field. Our definition agrees with the higher arithmetic Chow groups defined by Goncharov for projective arithmetic varieties over a field. These groups are the analogue, in the Arakelov co...

  2. Higher arithmetic Chow groups

    CERN Document Server

    Gil, J I Burgos

    2009-01-01

    We give a new construction of higher arithmetic Chow groups for quasi-projective arithmetic varieties over a field. Our definition agrees with the higher arithmetic Chow groups defined by Goncharov for projective arithmetic varieties over a field. These groups are the analogue, in the Arakelov context, of the higher algebraic Chow groups defined by Bloch. The degree zero group agrees with the arithmetic Chow groups of Burgos. Our new construction is shown to be a contravariant functor and is endowed with a product structure, which is commutative and associative.

  3. Fishualization: a group feedback display

    NARCIS (Netherlands)

    Schavemaker, J.G.M.; Boertjes, E.M.; Koldijk, S.J.; Wiertz, L.; Verberne, S.; Sappelli, M.; Kaptein, A.M.

    2014-01-01

    In this contribution1 we present a novel psychological intervention that maps human computer activity to a group feedback device on the basis of a combination of various types of unobtrusive, low-level sensors. The goal is to enable employees to gain insights into their working habits, to reduce str

  4. Yuehong Group to Display Its Gorgeous Fabrics

    Institute of Scientific and Technical Information of China (English)

    Flora Zhao

    2011-01-01

    Zhejiang Yuehong Holding Group Co.,Ltd.is a group company which covers many areas.With textile as its main business,the company has four textile subcompanies,such as Shaoxing Hongmao Weaving Co.,Ltd.,Shaoxing Shenglong Textile Co.,Ltd.,Shaoxing Yuexin Digital Textile Co.Ltd.and Shaoxing Yuehong Technic Co.,Ltd.Yuehong group also invests on international trading and real estate both of which make a great profit.

  5. Treating student contributions as displays of understanding in group supervision

    DEFF Research Database (Denmark)

    2012-01-01

    The analyses this paper reports come from ongoing research into the interactive establishment of local social order in an educational setting (Day & Kjærbeck 2008, Day & Kjærbeck, in preparation). In focus for this paper are a particular sort of activity in the setting, 'group supervision', whereby...... students working in 'project groups' are to meet with their 'supervisor' to discuss the group's ongoing project, and a particular set of interactive phenomena, namely students' displays of comprehension directed toward the supervisor following his or evaluation of their work. This work is in line...

  6. Higher Gauge Theory with String 2-Groups

    CERN Document Server

    Demessie, Getachew Alemu

    2016-01-01

    We give a complete and explicit description of the kinematical data of higher gauge theory on principal 2-bundles with the string 2-group model of Schommer-Pries as structure 2-group. We start with a self-contained review of the weak 2-category Bibun of Lie groupoids, bibundles and bibundle morphisms. We then construct categories internal to Bibun, which allow us to define principal 2-bundles with 2-groups internal to Bibun as structure 2-groups. Using these, we Lie-differentiate the 2-group model of the string group and we obtain the well-known string Lie 2-algebra. Generalizing the differentiation process, we find Maurer-Cartan forms leading us to higher non-abelian Deligne cohomology, encoding the kinematical data of higher gauge theory together with their (finite) gauge symmetries. We end by discussing an example of non-abelian self-dual strings in this setting.

  7. Treating student contributions as displays of understanding in group supervision

    DEFF Research Database (Denmark)

    2012-01-01

    the analytic relevance of the talk's embeddedness within a particular sort of institutional activity. With regard to the last point, we will show how the supervisors' construction an evaluation and the work embarked upon by him or her following students' post-evaluation comprehension displays reflexively...... grounds the particular institutional setting. In spite of the particulars of these data, however, we nonetheless maintain that our analyses of them reveal generalities concerning how cognition can be viewed as distributed, situated, activity-bound and embodied....

  8. Mission Groups and the New Politics of British Higher Education

    Science.gov (United States)

    Filippakou, Ourania; Tapper, Ted

    2015-01-01

    This article explores the emergence and impact of the mission groups in British higher education. The central argument is that given the development of a mass and diversified model of higher education it was inevitable that the higher education institutions would form pressure groups, while increased marketisation and growing inter-institutional…

  9. Higher anterior knee laxity influences the landing biomechanics displayed by pubescent girls.

    Science.gov (United States)

    Wild, Catherine Y; Munro, Bridget J; Steele, Julie R

    2017-01-01

    Despite an increase in anterior knee laxity (AKL) during the adolescent growth spurt in girls, it is unknown whether landing biomechanics are affected by this change. This study investigated whether pubescent girls with higher AKL displayed differences in their lower limb strength or landing biomechanics when performing a horizontal leap movement compared to girls with lower AKL. Forty-six pubescent girls (10-13 years) were tested at the time of their peak height velocity (PHV). Passive AKL was quantified and used to classify participants into higher (HAKL; peak displacement > 4 mm) and lower (LAKL; peak displacement biomechanics, which are suggested to assist the functional stability of their knees during this dynamic task. Further research is warranted, however, to confirm or refute this notion.

  10. Transposon display supports transpositional activity of elements in species of the saltans group of Drosophila

    Indian Academy of Sciences (India)

    Nathalia De Setta; Ana Paula Pimentel Costa; Fabrício Ramon Lopes; Marie-Anne Van Sluys; Cláudia Márcia Aparecida Carareto

    2007-01-01

    Mobilization of two element subfamilies (canonical and O-type) from Drosophila sturtevanti and D. saltans was evaluated for copy number and transposition activity using the transposon display (TD) technique. Pairwise distances between strains regarding the insertion polymorphism profile were estimated. Amplification of the element based on copy number estimates was highly variable among the strains (D. sturtevanti, canonical 20.11, O-type 9.00; D. saltans, canonical 16.4, O-type 12.60 insertions, on average). The larger values obtained by TD compared to our previous data by Southern blotting support the higher sensitivity of TD over Southern analysis for estimating transposable element copy numbers. The higher numbers of the canonical element and the greater divergence in its distribution within the genome of D. sturtevanti (24.8%) compared to the O-type (16.7%), as well as the greater divergence in the distribution of the canonical P element, between the D. sturtevanti (24.8%) and the D. saltans (18.3%) strains, suggest that the canonical element occupies more sites within the D. sturtevanti genome, most probably due to recent transposition activity. These data corroborate the hypothesis that the O-type is the oldest subfamily of elements in the saltans group and suggest that the canonical element is or has been transpositionally active until more recently in D. sturtevanti.

  11. Need for liquid-crystal display monitors having the capability of rendering higher than 8 bits in display-bit depth.

    Science.gov (United States)

    Hiwasa, Takeshi; Morishita, Junji; Hatanaka, Shiro; Ohki, Masafumi; Toyofuku, Fukai; Higashida, Yoshiharu

    2009-01-01

    Our purpose in this study was to examine the potential usefulness of liquid-crystal display (LCD) monitors having the capability of rendering higher than 8 bits in display-bit depth. An LCD monitor having the capability of rendering 8, 10, and 12 bits was used. It was calibrated to the grayscale standard display function with a maximum luminance of 450 cd/m(2) and a minimum of 0.75 cd/m(2). For examining the grayscale resolution reported by ten observers, various simple test patterns having two different combinations of luminance in 8, 10, and 12 bits were randomly displayed on the LCD monitor. These patterns were placed on different uniform background luminance levels, such as 0, 50, and 100%, for maximum luminance. All observers participating in this study distinguished a smaller difference in luminance than one gray level in 8 bits irrespective of background luminance levels. As a result of the adaptation processes of the human visual system, observers distinguished a smaller difference in luminance as the luminance level of the test pattern was closer to the background. The smallest difference in luminance that observers distinguished was four gray levels in 12 bits, i.e., one gray level in 10 bits. Considering the results obtained by use of simple test patterns, medical images should ideally be displayed on LCD monitors having 10 bits or greater so that low-contrast objects with small differences in luminance can be detected and for providing a smooth gradation of grayscale.

  12. The Effects of Alcohol on the Emotional Displays of Whites in Interracial Groups

    Science.gov (United States)

    Fairbairn, Catharine E.; Sayette, Michael A.; Levine, John M.; Cohn, Jeffrey F.; Creswell, Kasey G.

    2017-01-01

    Discomfort during interracial interactions is common among Whites in the U.S. and is linked to avoidance of interracial encounters. While the negative consequences of interracial discomfort are well-documented, understanding of its causes is still incomplete. Alcohol consumption has been shown to decrease negative emotions caused by self-presentational concern but increase negative emotions associated with racial prejudice. Using novel behavioral-expressive measures of emotion, we examined the impact of alcohol on displays of discomfort among 92 White individuals interacting in all-White or interracial groups. We used the Facial Action Coding System and comprehensive content-free speech analyses to examine affective and behavioral dynamics during these 36-minute exchanges (7.9 million frames of video data). Among Whites consuming nonalcoholic beverages, those assigned to interracial groups evidenced more facial and speech displays of discomfort than those in all-White groups. In contrast, among intoxicated Whites there were no differences in displays of discomfort between interracial and all-White groups. Results highlight the central role of self-presentational concerns in interracial discomfort and offer new directions for applying theory and methods from emotion science to the examination of intergroup relations. PMID:23356562

  13. The effects of alcohol on the emotional displays of Whites in interracial groups.

    Science.gov (United States)

    Fairbairn, Catharine E; Sayette, Michael A; Levine, John M; Cohn, Jeffrey F; Creswell, Kasey G

    2013-06-01

    Discomfort during interracial interactions is common among Whites in the U.S. and is linked to avoidance of interracial encounters. While the negative consequences of interracial discomfort are well-documented, understanding of its causes is still incomplete. Alcohol consumption has been shown to decrease negative emotions caused by self-presentational concern but increase negative emotions associated with racial prejudice. Using novel behavioral-expressive measures of emotion, we examined the impact of alcohol on displays of discomfort among 92 White individuals interacting in all-White or interracial groups. We used the Facial Action Coding System and comprehensive content-free speech analyses to examine affective and behavioral dynamics during these 36-min exchanges (7.9 million frames of video data). Among Whites consuming nonalcoholic beverages, those assigned to interracial groups evidenced more facial and speech displays of discomfort than those in all-White groups. In contrast, among intoxicated Whites there were no differences in displays of discomfort between interracial and all-White groups. Results highlight the central role of self-presentational concerns in interracial discomfort and offer new directions for applying theory and methods from emotion science to the examination of intergroup relations.

  14. Summation of Higher Order Effects using the Renormalization Group Equation

    CERN Document Server

    Elias, V; Sherry, T N

    2004-01-01

    The renormalization group (RG) is known to provide information about radiative corrections beyond the order in perturbation theory to which one has calculated explicitly. We first demonstrate the effect of the renormalization scheme used on these higher order effects determined by the RG. Particular attention is payed to the relationship between bare and renormalized quantities. Application of the method of characteristics to the RG equation to determine higher order effects is discussed, and is used to examine the free energy in thermal field theory, the relationship between the bare and renormalized coupling and the effective potential in massless scalar electrodynamics.

  15. Differentiated Rewards as an Enticement to Display and Develop More Professionalism in Higher Professional Education

    NARCIS (Netherlands)

    Jol Stoffers; Erik Canisius

    2015-01-01

    This research investigates to what extent lecturers at universities of applied sciences do regard differentiated rewards(intended to develop and/or display professionalism)to be fair, and to what extent, and in which form, do these stimulate their willingness to (further) professionalise and/or

  16. Motion transparency arises from perceptual grouping: evidence from luminance and contrast modulation motion displays.

    Science.gov (United States)

    McOwan, P W; Johnston, A

    1996-10-01

    What circumstance lead to the perception of global motion transparency? it has been shown that, in paired random dot displays, motion transparency can be abolished if the separation of the dot pairs is sufficiently small. Motion transparency has also been shown to be influenced by high level cognitive cues. Here, we report that the combination of two moving dot stimuli, which separately invoke a percept of transparent motion, gives rise to a non-transparent percept of local rotation. These stimuli were constructed using various different pattern elements, including luminance defined elements and contrast modulations. The results extend and support the view that high-level grouping of local measures of the velocity field can determine whether a motion transparency is perceived or not.

  17. Holographic Renormalization Group Structure in Higher-Derivative Gravity

    CERN Document Server

    Fukuma, M; Fukuma, Masafumi; Matsuura, So

    2002-01-01

    Classical higher-derivative gravity is investigated in the context of the holographic renormalization group (RG). We parametrize the Euclidean time such that one step of time evolution in (d+1)-dimensional bulk gravity can be directly interpreted as that of block spin transformation of the d-dimensional boundary field theory. This parametrization simplifies the analysis of the holographic RG structure in gravity systems, and conformal fixed points are always described by AdS geometry. We find that higher-derivative gravity generically induces extra degrees of freedom which acquire huge mass around stable fixed points and thus are coupled to highly irrelevant operators at the boundary. In the particular case of pure R^2-gravity, we show that some region of the coefficients of curvature-squared terms allows us to have two fixed points (one is multicritical) which are connected by a kink solution. We further extend our analysis to Minkowskian time to investigate a model of expanding universe described by the act...

  18. A newly discovered flavivirus in the yellow fever virus group displays restricted replication in vertebrates.

    Science.gov (United States)

    Colmant, Agathe M G; Bielefeldt-Ohmann, Helle; Hobson-Peters, Jody; Suen, Willy W; O'Brien, Caitlin A; van den Hurk, Andrew F; Hall, Roy A

    2016-05-01

    A novel flavivirus, provisionally named Bamaga virus (BgV), was isolated from Culex annulirostris mosquitoes collected from northern Australia. Phylogenetic analysis of the complete nucleotide sequence of the BgV genome revealed it clustered with the yellow fever virus (YFV) group, and was most closely related to Edge Hill virus (EHV), another Australian flavivirus, with 61.9% nucleotide and 63.7% amino acid sequence identity. Antigenic analysis of the envelope and pre-membrane proteins of BgV further revealed epitopes common to EHV, dengue and other mosquito-borne flaviviruses. However, in contrast to these viruses, BgV displayed restricted growth in a range of vertebrate cell lines with no or relatively slow replication in inoculated cultures. There was also restricted BgV replication in virus-challenged mice. Our results indicate that BgV is an evolutionary divergent member of the YFV group of flaviviruses, and represents a novel system to study mechanisms of virus host-restriction and transmission.

  19. The importance of emotional display rules for employee well-being: A multi-group comparison

    NARCIS (Netherlands)

    Ybema, J.F.; Dam, K. van

    2014-01-01

    'Serving with a smile' has generally been associated with negative effects for employee well-being. The present study investigated whether emotional display rules also relate to positive outcomes by distinguishing demands to suppress negative emotional response (negative display rules) from demands

  20. The importance of emotional display rules for employee well-being : A multi-group comparison

    NARCIS (Netherlands)

    Ybema, Jan Fekke; van Dam, Karen

    2014-01-01

    'Serving with a smile' has generally been associated with negative effects for employee well-being. The present study investigated whether emotional display rules also relate to positive outcomes by distinguishing demands to suppress negative emotional response (negative display rules) from demands

  1. Focus-Group Evaluation of Nutrition Education Displays by Hispanic Adults Who Live in the USA

    Science.gov (United States)

    Chambers, Delores H.; Munoz, Alejandra M.

    2009-01-01

    Purpose: The purpose of this paper is to examine the acceptability and effectiveness of visual displays of nutrition educational information for low-income Hispanic adults in the USA and to determine whether this population have different perceptions of the same nutrition education displays or express different needs than low-income Caucasian…

  2. The importance of emotional display rules for employee well-being : A multi-group comparison

    NARCIS (Netherlands)

    Ybema, Jan Fekke; van Dam, Karen

    2014-01-01

    'Serving with a smile' has generally been associated with negative effects for employee well-being. The present study investigated whether emotional display rules also relate to positive outcomes by distinguishing demands to suppress negative emotional response (negative display rules) from demands

  3. Co-Mentoring Support Groups in Higher Education.

    Science.gov (United States)

    Mullen, Carol A.; Whatley, April; Kealy, William A.

    This paper presents a model for a co-mentoring support group among graduate students and faculty, using as a case study the development of a faculty-student support group in a college of education at a university. This support group began in 1995 and consisted of 11 participants who met formally for one year and have continued to meet informally…

  4. Exploring Group Cohesion in a Higher Education Field Experience

    Science.gov (United States)

    Malcarne, Brian Keith

    2012-01-01

    The purpose of this study was to gain understanding into the experience of group cohesion for university students participating in an academic field experience. A mixed methods approach was used following a two-phase, sequential research design to help provide a more complete explanation of how group cohesion was impacted by the field experience.…

  5. Higher S-dualities and Shephard-Todd groups

    CERN Document Server

    Cecotti, Sergio

    2015-01-01

    Seiberg and Witten have shown that in N=2 SQCD with $N_f=2N_c=4$ the S-duality group PSL(2,Z) acts on the flavor charges, which are weights of Spin(8), by triality. There are other N=2 SCFTs in which SU(2) SYM is coupled to strongly-interacting non-Lagrangian matter: their matter charges are weights of $E_6$, $E_7$ and $E_8$ instead of Spin(8). The S-duality group PSL(2,Z) acts on these weights: what replaces Spin(8) triality for the $E_6,E_7,E_8$ root lattices? In this paper we answer the question. The action on the matter charges of (a finite central extension of) PSL(2,Z) factorizes trough the action of the exceptional Shephard--Todd groups $G_4$ and $G_8$ which should be seen as complex analogs of the usual triality group $\\mathfrak{S}_3\\simeq \\mathrm{Weyl}(A_2)$. Our analysis is based on the identification of S-duality for SU(2) gauge SCFTs with the group of automorphisms of the cluster category of weighted projective lines of tubular type.

  6. Higher genus mapping class group invariants from factorizable Hopf algebras

    CERN Document Server

    Fuchs, Jurgen; Stigner, Carl

    2012-01-01

    Lyubashenko's construction associates representations of mapping class groups Map_{g,n} of Riemann surfaces of any genus g with any number n of holes to a factorizable ribbon category. We consider this construction as applied to the category of bimodules over a finite-dimensional factorizable ribbon Hopf algebra H. For any such Hopf algebra we find an invariant of Map_{g,n} for every g and n. More generally, we obtain such invariants for any pair (H,omega), where omega is a ribbon automorphism of H. Our results are motivated by the quest to understand correlation functions of bulk fields in two-dimensional conformal field theories with chiral algebras that are not necessarily semisimple, so-called logarithmic conformal field theories.

  7. Undifferentiated bronchial fibroblasts derived from asthmatic patients display higher elastic modulus than their non-asthmatic counterparts.

    Directory of Open Access Journals (Sweden)

    Michal Sarna

    Full Text Available During asthma development, differentiation of epithelial cells and fibroblasts towards the contractile phenotype is associated with bronchial wall remodeling and airway constriction. Pathological fibroblast-to-myofibroblast transition (FMT can be triggered by local inflammation of bronchial walls. Recently, we have demonstrated that human bronchial fibroblasts (HBFs derived from asthmatic patients display some inherent features which facilitate their FMT in vitro. In spite of intensive research efforts, these properties remain unknown. Importantly, the role of undifferentiated HBFs in the asthmatic process was systematically omitted. Specifically, biomechanical properties of undifferentiated HBFs have not been considered in either FMT or airway remodeling in vivo. Here, we combine atomic force spectroscopy with fluorescence microscopy to compare mechanical properties and actin cytoskeleton architecture of HBFs derived from asthmatic patients and non-asthmatic donors. Our results demonstrate that asthmatic HBFs form thick and aligned 'ventral' stress fibers accompanied by enlarged focal adhesions. The differences in cytoskeleton architecture between asthmatic and non-asthmatic cells correlate with higher elastic modulus of asthmatic HBFs and their increased predilection to TGF-β-induced FMT. Due to the obvious links between cytoskeleton architecture and mechanical equilibrium, our observations indicate that HBFs derived from asthmatic bronchi can develop considerably higher static tension than non-asthmatic HBFs. This previously unexplored property of asthmatic HBFs may be potentially important for their myofibroblastic differentiation and bronchial wall remodeling during asthma development.

  8. Undifferentiated bronchial fibroblasts derived from asthmatic patients display higher elastic modulus than their non-asthmatic counterparts.

    Science.gov (United States)

    Sarna, Michal; Wojcik, Katarzyna A; Hermanowicz, Pawel; Wnuk, Dawid; Burda, Kvetoslava; Sanak, Marek; Czyż, Jarosław; Michalik, Marta

    2015-01-01

    During asthma development, differentiation of epithelial cells and fibroblasts towards the contractile phenotype is associated with bronchial wall remodeling and airway constriction. Pathological fibroblast-to-myofibroblast transition (FMT) can be triggered by local inflammation of bronchial walls. Recently, we have demonstrated that human bronchial fibroblasts (HBFs) derived from asthmatic patients display some inherent features which facilitate their FMT in vitro. In spite of intensive research efforts, these properties remain unknown. Importantly, the role of undifferentiated HBFs in the asthmatic process was systematically omitted. Specifically, biomechanical properties of undifferentiated HBFs have not been considered in either FMT or airway remodeling in vivo. Here, we combine atomic force spectroscopy with fluorescence microscopy to compare mechanical properties and actin cytoskeleton architecture of HBFs derived from asthmatic patients and non-asthmatic donors. Our results demonstrate that asthmatic HBFs form thick and aligned 'ventral' stress fibers accompanied by enlarged focal adhesions. The differences in cytoskeleton architecture between asthmatic and non-asthmatic cells correlate with higher elastic modulus of asthmatic HBFs and their increased predilection to TGF-β-induced FMT. Due to the obvious links between cytoskeleton architecture and mechanical equilibrium, our observations indicate that HBFs derived from asthmatic bronchi can develop considerably higher static tension than non-asthmatic HBFs. This previously unexplored property of asthmatic HBFs may be potentially important for their myofibroblastic differentiation and bronchial wall remodeling during asthma development.

  9. Ophiobolin A, a sesterterpenoid fungal phytotoxin, displays higher in vitro growth-inhibitory effects in mammalian than in plant cells and displays in vivo antitumor activity.

    Science.gov (United States)

    Bury, Marina; Novo-Uzal, Esther; Andolfi, Anna; Cimini, Sara; Wauthoz, Nathalie; Heffeter, Petra; Lallemand, Benjamin; Avolio, Fabiana; Delporte, Cédric; Cimmino, Alessio; Dubois, Jacques; Van Antwerpen, Pierre; Zonno, Maria Chiara; Vurro, Maurizio; Poumay, Yves; Berger, Walter; Evidente, Antonio; De Gara, Laura; Kiss, Robert; Locato, Vittoria

    2013-08-01

    Ophiobolin A, a sesterterpenoid produced by plant pathogenic fungi, was purified from the culture extract of Drechslera gigantea and tested for its growth-inhibitory activity in both plant and mammalian cells. Ophiobolin A induced cell death in Nicotiana tabacum L. cv. Bright Yellow 2 (TBY-2) cells at concentrations ≥10 µM, with the TBY-2 cells showing typical features of apoptosis-like cell death. At a concentration of 5 µM, ophiobolin A did not affect plant cell viability but prevented cell proliferation. When tested on eight cancer cell lines, concentrations <1 µM of ophiobolin A inhibited growth by 50% after 3 days of culture irrespective of their multidrug resistance (MDR) phenotypes and their resistance levels to pro-apoptotic stimuli. It is, thus, unlikely that ophiobolin A exerts these in vitro growth-inhibitory effects in cancer cells by activating pro-apoptotic processes. Highly proliferative human keratinocytes appeared more sensitive to the growth-inhibitory effects of ophiobolin A than slowly proliferating ones. Ophiobolin A also displayed significant antitumor activity at the level of mouse survival when assayed at 10 mg/kg in the B16F10 mouse melanoma model with lung pseudometastases. Ophiobolin A could, thus, represent a novel scaffold to combat cancer types that display various levels of resistance to pro-apoptotic stimuli and/or various MDR phenotypes.

  10. Effects of a weight loss program on body composition and the metabolic profile in obese postmenopausal women displaying various obesity phenotypes: a MONET group study.

    Science.gov (United States)

    Normandin, Eve; Doucet, Eric; Rabasa-Lhoret, Rémi; Brochu, Martin

    2015-07-01

    Obesity is a heterogeneous condition, since the metabolic profile may differ greatly from one individual to another. The objective of this study was to compare the effect of a 6-month diet-induced weight loss program on body composition and the metabolic profile in obese individuals displaying different obesity phenotypes. Secondary analyses were done on 129 obese (% body fat: 46% ± 4%) postmenopausal women (age: 57 ± 4 years). Outcome measures included body composition, body fat distribution, glucose homeostasis, fasting lipids, and blood pressure. Obesity phenotypes were determined based on lean body mass (LBM) index (LBMI = LBM/height(2)) and visceral fat (VF) accumulation, as follows: 1, lower VF and lower LBMI (n = 35); 2, lower VF and higher LBMI (n = 19); 3, higher VF and lower LBMI (n = 14); and 4, higher VF and higher LBMI (n = 61). All groups had significantly improved measures of body composition after the intervention (P metabolic profile in response to weight loss. Individuals displaying higher VF or higher LBMI at baseline experienced significantly greater decreases for these variables after the intervention.

  11. Radiologists' preferences for digital mammographic display. The International Digital Mammography Development Group.

    Science.gov (United States)

    Pisano, E D; Cole, E B; Major, S; Zong, S; Hemminger, B M; Muller, K E; Johnston, R E; Walsh, R; Conant, E; Fajardo, L L; Feig, S A; Nishikawa, R M; Yaffe, M J; Williams, M B; Aylward, S R

    2000-09-01

    To determine the preferences of radiologists among eight different image processing algorithms applied to digital mammograms obtained for screening and diagnostic imaging tasks. Twenty-eight images representing histologically proved masses or calcifications were obtained by using three clinically available digital mammographic units. Images were processed and printed on film by using manual intensity windowing, histogram-based intensity windowing, mixture model intensity windowing, peripheral equalization, multiscale image contrast amplification (MUSICA), contrast-limited adaptive histogram equalization, Trex processing, and unsharp masking. Twelve radiologists compared the processed digital images with screen-film mammograms obtained in the same patient for breast cancer screening and breast lesion diagnosis. For the screening task, screen-film mammograms were preferred to all digital presentations, but the acceptability of images processed with Trex and MUSICA algorithms were not significantly different. All printed digital images were preferred to screen-film radiographs in the diagnosis of masses; mammograms processed with unsharp masking were significantly preferred. For the diagnosis of calcifications, no processed digital mammogram was preferred to screen-film mammograms. When digital mammograms were preferred to screen-film mammograms, radiologists selected different digital processing algorithms for each of three mammographic reading tasks and for different lesion types. Soft-copy display will eventually allow radiologists to select among these options more easily.

  12. Lactobacillus strains belonging to Casei group display various adherence to enterocytes and mucus

    Directory of Open Access Journals (Sweden)

    Corinna Markowicz

    2015-09-01

    Full Text Available Background. The ability of lactobacilli to adhere to the surface of the intestine is an important functional characteristic which can largely determine the effective colonization of the intestinal tract by probiotics. The following study compares the adhesion efficiency of the twenty strains of Lactobacillus genus belonging to Casei group to the Caco-2 cells and gastrointestinal mucus. Material and methods. Twenty isolates of lactobacilli belonging to Casei group were tested. The ability of bacterial cells to adhere to mucus was examined using adhesion assay to gastrointestinal mucus. Obtained results were compared with adhesion efficiency to Caco-2 cells. Phylogenetic relationship between isolates was analysed by rep-PCR. Results. The results showed large differences in adhesion efficiency between strains, as well as differences in the efficiency of adhesion to the intestinal epithelial cells and mucus. Group similarity highlighted by a rep-PCR technique does not correspond with groups of similarity in terms of the characteristics of the ability to adhere to mucus or the epithelial cells of intestinal tract. Conclusions. Strains having a high adhesion efficiency to enterocytes do not always show a high adhesion efficiency to the mucus. This may indicate the presence of different and multiple factors responsible for adhesion efficiency of Lactobacillus group Casei strains to epithelial cells and mucus.

  13. Universal Numeric Segmented Display

    CERN Document Server

    Azad, Md Abul kalam; Kamruzzaman, S M

    2010-01-01

    Segmentation display plays a vital role to display numerals. But in today's world matrix display is also used in displaying numerals. Because numerals has lots of curve edges which is better supported by matrix display. But as matrix display is costly and complex to implement and also needs more memory, segment display is generally used to display numerals. But as there is yet no proposed compact display architecture to display multiple language numerals at a time, this paper proposes uniform display architecture to display multiple language digits and general mathematical expressions with higher accuracy and simplicity by using a 18-segment display, which is an improvement over the 16 segment display.

  14. Theorising Dyslexic Student Discussion/Action Groups in UK Higher Education: Research in Practice

    Science.gov (United States)

    French, Jenny; Herrington, Margaret

    2008-01-01

    This "research in practice" analyses the experience of operating discussion/action groups with dyslexic students in higher education in three British universities which reflects a shift from the practice of developing "support groups" to a more developmental, proactive stance. It does so in the current UK legislative context…

  15. Web Environments for Group-Based Project Work in Higher Education

    NARCIS (Netherlands)

    Diepen, van Nico; Collis, Betty; Andernach, Toine

    1997-01-01

    We discuss problems confronting the use of group-based project work as an instructional strategy in higher education and describe two courses in which course-specific World Wide Web (Web) environments have evolved over a series of course sequences and are used both as tool environments for group-pro

  16. The Complete Guide to Focus Group Marketing Research for Higher Education.

    Science.gov (United States)

    Topor, Robert S.

    This guide discusses the use of focus groups in marketing research for higher education. It describes the differences between qualitative and quantitative research, and examines when it is appropriate to use focus group research, when it is not, and why. The guide describes a step-by-step approach in how to plan, formulate, moderate, and report…

  17. Learning Groups in MOOCs: Lessons for Online Learning in Higher Education

    Directory of Open Access Journals (Sweden)

    Godfrey Mayende

    2017-06-01

    Full Text Available when there is interaction within online learning groups, meaningful learning is achieved. Motivating and sustaining effective student interactions requires planning, coordination and implementation of curriculum, pedagogy and technology. For our aim to understand online learning group processes to identify effective online learning group mechanisms, comparative analysis was used on a massive open online course (MOOC run in 2015 and 2016. Qualitative (interaction on the platform and quantitative (survey methods were used. The findings revealed several possible ways to improve online learning group processes. This paper concludes that course organization helped in increasing individual participation in the groups. Motivation by peers helped to increase sustainability of interaction in the learning groups. Applying these mechanisms in higher education can make online learning groups more effective.

  18. Understanding Responsive Web Design in Higher Education. ECAR Working Group Paper

    Science.gov (United States)

    Bollens, Eric; Rocchio, Rosemary A.; Peterson, Jill Eleanor; Pollack, Brett; Tirpak, Lori; Ward, Christopher Matthew

    2014-01-01

    This paper is a publication of the EDUCAUSE Center for Analysis and Research (ECAR) Mobile Strategy and Application Development (MSAD) Working Group. In higher education, nearly every user interaction that takes place on a desktop or laptop browser is also attempted using phones, tablets, watches, and more. As students, faculty, and staff…

  19. Multicultural student group work in higher education: a study on challenges as perceived by students

    NARCIS (Netherlands)

    Popov, V.; Brinkman, B.; Biemans, H.J.A.; Mulder, M.; Kuznetsov, A.M.; Noroozi, O.

    2012-01-01

    This paper aims to examine challenges that are inherent in multicultural student group work (MCSG) in higher education and the differences between students from different cultural backgrounds in how they perceive the importance of challenges in MCSG. For this purpose, a 19-item survey was completed

  20. Compensatory Policies Attending Equality and Inequality in Mexico Educational Practice among Vulnerable Groups in Higher Education

    Science.gov (United States)

    Flores, René Pedroza; Monroy, Guadalupe Villalobos; Fabela, Ana María Reyes

    2015-01-01

    This paper presents an estimate of the prevalence of social inequality in accessing higher education among vulnerable groups in Mexico. Estimates were determined from statistical data provided by governmental agencies on the level of poverty among the Mexican population. In Mexico, the conditions of poverty and vulnerability while trying to access…

  1. Career Repertoires of IT Students: A Group Counselling Case Study in Higher Education

    Science.gov (United States)

    Penttinen, Leena; Vesisenaho, Mikko

    2013-01-01

    Uncertainty about future career prospects has increased enormously for students enrolled in higher education Information Technology (IT) programs. However, many computer science programmes pay little attention to career counselling. This article reports the results of a pilot study intended to develop group counselling for IT students to promote…

  2. Group Work as "Terrains of Learning" for Students in South African Higher Education

    Science.gov (United States)

    Thondhlana, Gladman; Belluigi, Dina Zoe

    2014-01-01

    A common global perception of group work in the higher education context is that it has the potential to act as a platform which can enable student learning by means of interactions, shared diverse experiences, deep engagement with subject concepts and the achievement of tasks collaboratively. Indeed, in different socio-economic, historical and…

  3. Understanding Responsive Web Design in Higher Education. ECAR Working Group Paper

    Science.gov (United States)

    Bollens, Eric; Rocchio, Rosemary A.; Peterson, Jill Eleanor; Pollack, Brett; Tirpak, Lori; Ward, Christopher Matthew

    2014-01-01

    This paper is a publication of the EDUCAUSE Center for Analysis and Research (ECAR) Mobile Strategy and Application Development (MSAD) Working Group. In higher education, nearly every user interaction that takes place on a desktop or laptop browser is also attempted using phones, tablets, watches, and more. As students, faculty, and staff…

  4. Career Repertoires of IT Students: A Group Counselling Case Study in Higher Education

    Science.gov (United States)

    Penttinen, Leena; Vesisenaho, Mikko

    2013-01-01

    Uncertainty about future career prospects has increased enormously for students enrolled in higher education Information Technology (IT) programs. However, many computer science programmes pay little attention to career counselling. This article reports the results of a pilot study intended to develop group counselling for IT students to promote…

  5. Raising the Participation Rate of the Lower Socio-economic Groups in Higher Education

    Institute of Scientific and Technical Information of China (English)

    黄智文

    2008-01-01

    This essay aims to analyze the policy of widening participation in higher education in the UK.The policy was made in the interest of the students with a historically disadvantaged background called "lower socio-ecunomic groups".It analyzes the different possible constraints of those students and what the government can do to help them solve the problems.

  6. Nominal Group Technique and its Applications in Managing Quality in Higher Education

    Directory of Open Access Journals (Sweden)

    Rafikul Islam

    2011-09-01

    Full Text Available Quality management is an important aspect in all kinds of businesses – manufacturing or service. Idea generation plays a pivotal role in managing quality in organizations. It is thenew and innovative ideas which can help corporations to survive in the turbulent business environment. Research in group dynamics has shown that more ideas are generated by individuals working alone but in a group environment than the individuals engaged in a formal group discussion. In Nominal Group Technique (NGT, individuals work alone but in a group setting. This paper shows how NGT can be applied to generate large number of ideas to solve quality related problems specifically in Malaysian higher education setting. The paper also discusses the details of NGT working procedure andexplores the areas of its further applications.

  7. α-Helix peptides designed from EBV-gH protein display higher antigenicity and induction of monocyte apoptosis than the native peptide.

    Science.gov (United States)

    Urquiza, Mauricio; Melo-Cardenas, Johanna; Guevara, Tatiana; Echeverria, Ignacia; Rodriguez, Isabel C; Vanegas, Magnolia; Amzel, Mario; Patarroyo, Manuel E

    2010-11-01

    We tested the hypothesis that stabilizing α-helix of Epstein-Barr virus gH-derived peptide 11438 used for binding human cells will increase its biological activity. Non-stable α-helix of peptide 11438 was unfolded in an entropy-driven process, despite the opposing effect of the enthalpy factor. Adding and/or changing amino acids in peptide 11438 allowed the designing of peptides 33207, 33208 and 33210; peptides 33208 and 33210 displayed higher helical content due to a decreased unfolding entropy change as was determined by AGADIR, molecular dynamics and circular dichroism analysis. Peptides 33207, 33208 and 33210 inhibited EBV invasion of peripheral blood mononuclear cells and displayed epitopes more similar to native protein than peptide 11438; these peptides could be useful for detecting antibodies induced by native gH protein since they displayed high reactivity with anti-EBV antibodies. Anti-peptide 33207 antibodies showed higher reactivity with EBV than anti-peptide 11438 antibodies being useful for inducing antibodies against EBV. Anti-peptide 33210 antibodies inhibit EBV invasion of epithelial cells better than anti-peptide 11438 antibodies. Peptide 33210 bound to normal T lymphocytes and Raji cells stronger than peptide 11438 and also induced apoptosis of monocytes and Raji cells but not of normal T cells in a similar way to EBV-gH. Peptide 33210 inhibited the monocytes' development toward dendritic cells better than EBV and peptide 11438. In conclusion, stabilizing the α-helix in peptides 33208 and 33210 designed from peptide 11438 increased the antigenicity and the ability of the antibodies induced by peptides of inhibiting EBV invasion of host cells.

  8. Adaptive grouping for the higher-order multilevel fast multipole method

    DEFF Research Database (Denmark)

    Borries, Oscar Peter; Jørgensen, Erik; Meincke, Peter

    2014-01-01

    An alternative parameter-free adaptive approach for the grouping of the basis function patterns in the multilevel fast multipole method is presented, yielding significant memory savings compared to the traditional Octree grouping for most discretizations, particularly when using higher-order basis...... functions. Results from both a uniformly and nonuniformly meshed scatterer are presented, showing how the technique is worthwhile even for regular meshes, and demonstrating that there is no loss of accuracy in spite of the large reduction in memory requirements and the relatively low computational cost....

  9. Eisenstein series for higher-rank groups and string theory amplitudes

    CERN Document Server

    Green, Michael B; Russo, Jorge G; Vanhove, Pierre

    2010-01-01

    Scattering amplitudes of superstring theory are strongly constrained by the requirement that they be invariant under dualities generated by discrete subgroups, E_n(Z), of simply-laced Lie groups in the E_n series (n<= 8). In particular, expanding the four-supergraviton amplitude at low energy gives a series of higher derivative corrections to Einstein's theory, with coefficients that are automorphic functions with a rich dependence on the moduli. Boundary conditions supplied by string and supergravity perturbation theory, together with a chain of relations between successive groups in the E_n series, constrain the constant terms of these coefficients in three distinct parabolic subgroups. Using this information we are able to determine the expressions for the first two higher derivative interactions (which are BPS-protected) in terms of specific Eisenstein series. Further, we determine key features of the coefficient of the third term in the low energy expansion of the four-supergraviton amplitude (which i...

  10. Conflict Management in Student Groups - a Teacher’s Perspective in Higher Education

    Directory of Open Access Journals (Sweden)

    Markus Borg

    2011-12-01

    Full Text Available Students working in groups is a commonly used method of instruction in higher education, popularized by the introduction of problem based learning. As a result, management of small groups of people has become an important skill for teachers. The objective of our study is to investigate why conflicts arise in student groups at the Faculty of Engineering at Lund University and how teachers manage them. We have conducted an exploratory interdepartmental interview study on teachers' views on this matter, interviewing ten university teachers with different levels of seniority. Our results show that conflicts frequently arise in group work, most commonly caused by different levels of ambition among students. We also found that teachers prefer to work proactively against conflicts and stress the student’s responsibility. Finally, we show that teachers at our faculty tend to avoid the more drastic conflict resolution strategies suggested by previous research. The outcome of our study could be used as input to future guidelines on conflict management in student groups.

  11. Mapping biodiversity value worldwide: combining higher-taxon richness from different groups

    Science.gov (United States)

    Williams, P. H.; Gaston, K. J.; Humphries, C. J.

    1997-01-01

    Maps of large-scale biodiversity are urgently needed to guide conservation, and yet complete enumeration of organisms is impractical at present. One indirect approach is to measure richness at higher taxonomic ranks, such as families. The difficulty is how to combine information from different groups on numbers of higher taxa, when these taxa may in effect have been defined in different ways, particularly for more distantly related major groups. In this paper, the regional family richness of terrestrial and freshwater seed plants, amphibians, reptiles and mammals is mapped worldwide by combining: (i) absolute family richness; (ii) proportional family richness; and (iii) proportional family richness weighted for the total species richness in each major group. The assumptions of the three methods and their effects on the results are discussed, although for these data the broad pattern is surprisingly robust with respect to the method of combination. Scores from each of the methods of combining families are used to rank the top five richness hotspots and complementary areas, and hotspots of endemism are mapped by unweighted combination of range-size rarity scores.

  12. Military display market segment: helicopters

    Science.gov (United States)

    Desjardins, Daniel D.; Hopper, Darrel G.

    2004-09-01

    The military display market is analyzed in terms of one of its segments: helicopter displays. Parameters requiring special consideration, to include luminance ranges, contrast ratio, viewing angles, and chromaticity coordinates, are examined. Performance requirements for rotary-wing displays relative to several premier applications are summarized. Display sizes having aggregate defense applications of 5,000 units or greater and having DoD applications across 10 or more platforms, are tabulated. The issue of size commonality is addressed where distribution of active area sizes across helicopter platforms, individually, in groups of two through nine, and ten or greater, is illustrated. Rotary-wing displays are also analyzed by technology, where total quantities of such displays are broken out into CRT, LCD, AMLCD, EM, LED, Incandescent, Plasma and TFEL percentages. Custom, versus Rugged commercial, versus commercial off-the-shelf designs are contrasted. High and low information content designs are identified. Displays for several high-profile military helicopter programs are discussed, to include both technical specifications and program history. The military display market study is summarized with breakouts for the helicopter market segment. Our defense-wide study as of March 2004 has documented 1,015,494 direct view and virtual image displays distributed across 1,181 display sizes and 503 weapon systems. Helicopter displays account for 67,472 displays (just 6.6% of DoD total) and comprise 83 sizes (7.0% of total DoD) in 76 platforms (15.1% of total DoD). Some 47.6% of these rotary-wing applications involve low information content displays comprising just a few characters in one color; however, as per fixed-wing aircraft, the predominant instantiation involves higher information content units capable of showing changeable graphics, color and video.

  13. The GIP receptor displays higher basal activity than the GLP-1 receptor but does not recruit GRK2 or arrestin3 effectively.

    Directory of Open Access Journals (Sweden)

    Suleiman Al-Sabah

    Full Text Available Glucagon-like peptide-1 (GLP-1 and glucose-dependent insulinotropic polypeptide (GIP are important regulators of insulin secretion, and their functional loss is an early characteristic of type 2 diabetes mellitus (T2DM. Pharmacological levels of GLP-1, but not GIP, can overcome this loss. GLP-1 and GIP exert their insulinotropic effects through their respective receptors expressed on pancreatic β-cells. Both the GLP-1 receptor (GLP-1R and the GIP receptor (GIPR are members of the secretin family of G protein-coupled receptors (GPCRs and couple positively to adenylate cyclase. We compared the signalling properties of these two receptors to gain further insight into why GLP-1, but not GIP, remains insulinotropic in T2DM patients.GLP-1R and GIPR were transiently expressed in HEK-293 cells, and basal and ligand-induced cAMP production were investigated using a cAMP-responsive luciferase reporter gene assay. Arrestin3 (Arr3 recruitment to the two receptors was investigated using enzyme fragment complementation, confocal microscopy and fluorescence resonance energy transfer (FRET.GIPR displayed significantly higher (P<0.05 ligand-independent activity than GLP-1R. Arr3 displayed a robust translocation to agonist-stimulated GLP-1R but not to GIPR. These observations were confirmed in FRET experiments, in which GLP-1 stimulated the recruitment of both GPCR kinase 2 (GRK2 and Arr3 to GLP-1R. These interactions were not reversed upon agonist washout. In contrast, GIP did not stimulate recruitment of either GRK2 or Arr3 to its receptor. Interestingly, arrestin remained at the plasma membrane even after prolonged (30 min stimulation with GLP-1. Although the GLP-1R/arrestin interaction could not be reversed by agonist washout, GLP-1R and arrestin did not co-internalise, suggesting that GLP-1R is a class A receptor with regard to arrestin binding.GIPR displays higher basal activity than GLP-1R but does not effectively recruit GRK2 or Arr3.

  14. Jacobi Forms of Higher Index and Paramodular Groups in N=2, D=4 Compactifications of String Theory

    CERN Document Server

    Nazaroglu, Caner

    2013-01-01

    We associate a Jacobi form over a rank s lattice to N=2, D=4 heterotic string compactifications which have s Wilson lines at a generic point in the vector multiplet moduli space. Jacobi forms of index m=1 and m=2 have appeared earlier in the context of threshold corrections to heterotic string couplings. We emphasize that higher index Jacobi forms as well as Jacobi forms of several variables over more generic even lattices also appear and construct models in which they arise. In particular, we construct an orbifold model which can be connected to models that give index m=3, 4 or 5 Jacobi forms through the Higgsing process. Constraints from being a Jacobi form are then employed to get threshold corrections using only partial information on the spectrum. We apply this procedure for index m=3, 4 or 5 Jacobi form examples and also for Jacobi forms over A_2 and A_3 root lattices. Examples with a single Wilson line are examined in detail and we display the relation of Siegel forms over a paramodular group \\Gamma_m ...

  15. Breath-hold gadolinium-enhanced three-dimensional MR thoracic aortography. Higher spatial resolution imaging with phased-array coil and three-dimensional surface display

    Energy Technology Data Exchange (ETDEWEB)

    Nakanishi, Tadashi; Hata, Ryoichiro; Tamura, Akihisa; Kohata, Minako; Miyasaka, Kenji; Kajima, Toshio; Fukuoka, Haruhito; Ito, Katsuhide [Hiroshima Univ. (Japan). School of Medicine

    2000-09-01

    The aim of this study was to examine signal intensities of data sets from MR thoracic aortography and to evaluate three-dimensional surface display (3DSD) for postprocessing. Twenty-five patients were imaged with gadolinium-enhanced 3D fast gradient echo sequence. The intensity at the aortic arch was significantly higher than that at the mediastinal fat (p<0.0001). The signal-to-noise ratio was lower at the aortic arch than at the ascending and descending aorta, whereas the contrast-to-noise ratio was fairly high at the aortic arch. Although in one case (4%) the intensity at the arch was smaller than that at the mediastinal fat, 3DSD was successfully performed in all cases. Superiority of 3DSD over maximum intensity projection was obtained in 67% of the cases. 3DSD was evaluated to be superior to maximum intensity projection in all cases of thoracic aortic aneurysm and coarctation of aorta. Higher resolution MR thoracic aortography could be successfully performed with phased-array coil and 3DSD. (author)

  16. Dendronized Polyimides Bearing Long-Chain Alkyl Groups and Their Application for Vertically Aligned Nematic Liquid Crystal Displays

    Directory of Open Access Journals (Sweden)

    Yusuke Tsuda

    2009-11-01

    Full Text Available Polyimides having dendritic side chains were investigated. The terphenylene diamine monomer having a first-generation monodendron, 3,4,5-tris(n-dodecyloxy-benzoate and the monomer having a second-generation monodendron, 3,4,5-tris[-3’,4’,5’-tri(n-dodecyloxybenzyloxy]benzoate were successfully synthesized and the corresponding soluble dendritic polyimides were obtained by polycondensation with conventional tetracarboxylic dianhydride monomers such as benzophenone tertracarboxylic dianhydride (BTDA. The two-step polymerizations in NMP that is a general method for the synthesis of soluble polyimides is difficult; however, the expected dendritic polyimides can be obtained in aromatic polar solvents such as m-cresol and pyridine. The solubility of these dendoronized polyimides is characteristic; soluble in common organic solvents such as dichloromethane, chloroform, toluene and THF. These dendronized polyimides exhibited high glass transition temperatures and good thermal stability in both air and under nitrogen. Their application as alignment layers for LCDs was investigated, and it was found that these polyimides having dendritic side chains were applicable for the vertically aligned nematic liquid crystal displays (VAN-LCDs.

  17. Groups travel further: pelagic metamorphosis and polyp clustering allow higher dispersal potential in sun coral propagules

    Science.gov (United States)

    Mizrahi, Damián; Navarrete, Sergio A.; Flores, Augusto A. V.

    2014-06-01

    We report that planulae produced by Tubastraea coccinea can metamorphose and aggregate in groups of up to eight polyps in the water column, without previous settlement on benthic substrate. We also evaluated the survival of propagules to test whether different levels of aggregation allowed for longer planktonic life and, therefore, higher dispersal potential. Our results show that pelagic polyps live longer than planulae, probably because they can feed and meet the presumably high-energy demands of swimming. Clusters of two or more individuals lived longer than solitary polyps. However, mortality did not differ between small (2-3 polyps) and large (4-8 polyps) clusters, suggesting the existence of an upper limit to cluster size. Most swimming clusters (80 %) remained alive after 6 months, suggesting that pelagic metamorphosis and cluster formation can be a key life-history feature increasing dispersal potential, population connectivity, and the colonization of new habitats in this invasive species.

  18. Essential Oil from Berries of Lebanese Juniperus excelsa M. Bieb Displays Similar Antibacterial Activity to Chlorhexidine but Higher Cytocompatibility with Human Oral Primary Cells

    Directory of Open Access Journals (Sweden)

    Barbara Azzimonti

    2015-05-01

    Full Text Available Chlorhexidine (CHX, one of the most effective drugs administered for periodontal treatment, presents collateral effects including toxicity when used for prolonged periods; here, we have evaluated the bactericidal potency and the cytocompatibility of Juniperus excelsa M. Bieb essential oil (EO in comparison with 0.05% CHX. The EO was extracted from berries by hydrodistillation and components identified by gas chromatography and mass spectrometry. Bacterial inhibition halo analysis, quantitative cell viability 2,3-bis(2-methoxy-4-nitro-5-sulphophenyl-5-[(phenyl amino carbonyl]-2H-tetrazolium hydroxide assay (XTT, and colony forming unit (CFU count were evaluated against the two biofilm formers Aggregatibacter actinomycetemcomitans and Streptococcus mutans. Finally, cytocompatibility was assessed with human primary gingival fibroblasts (HGF and mucosal keratinocytes (HK. The resulting EO was mainly composed of monoterpene hydrocarbons and oxygenated monoterpenes. An inhibition halo test demonstrated that both bacteria were sensitive to the EO; XTT analysis and CFU counts confirmed that 10-fold-diluted EO determined a statistically significant (p < 0.05 reduction in bacteria count and viability towards both biofilm and planktonic forms in a comparable manner to those obtained with CHX. Moreover, EO displayed higher cytocompatibility than CHX (p < 0.05. In conclusion, EO exhibited bactericidal activity similar to CHX, but a superior cytocompatibility, making it a promising antiseptic alternative to CHX.

  19. Essential Oil from Berries of Lebanese Juniperus excelsa M. Bieb Displays Similar Antibacterial Activity to Chlorhexidine but Higher Cytocompatibility with Human Oral Primary Cells.

    Science.gov (United States)

    Azzimonti, Barbara; Cochis, Andrea; Beyrouthy, Marc El; Iriti, Marcello; Uberti, Francesca; Sorrentino, Rita; Landini, Manuela Miriam; Rimondini, Lia; Varoni, Elena Maria

    2015-05-21

    Chlorhexidine (CHX), one of the most effective drugs administered for periodontal treatment, presents collateral effects including toxicity when used for prolonged periods; here, we have evaluated the bactericidal potency and the cytocompatibility of Juniperus excelsa M. Bieb essential oil (EO) in comparison with 0.05% CHX. The EO was extracted from berries by hydrodistillation and components identified by gas chromatography and mass spectrometry. Bacterial inhibition halo analysis, quantitative cell viability 2,3-bis(2-methoxy-4-nitro-5-sulphophenyl)-5-[(phenyl amino) carbonyl]-2H-tetrazolium hydroxide assay (XTT), and colony forming unit (CFU) count were evaluated against the two biofilm formers Aggregatibacter actinomycetemcomitans and Streptococcus mutans. Finally, cytocompatibility was assessed with human primary gingival fibroblasts (HGF) and mucosal keratinocytes (HK). The resulting EO was mainly composed of monoterpene hydrocarbons and oxygenated monoterpenes. An inhibition halo test demonstrated that both bacteria were sensitive to the EO; XTT analysis and CFU counts confirmed that 10-fold-diluted EO determined a statistically significant (p < 0.05) reduction in bacteria count and viability towards both biofilm and planktonic forms in a comparable manner to those obtained with CHX. Moreover, EO displayed higher cytocompatibility than CHX (p < 0.05). In conclusion, EO exhibited bactericidal activity similar to CHX, but a superior cytocompatibility, making it a promising antiseptic alternative to CHX.

  20. Adding to the mix: Students use of Facebook groups and blackboard discussion forums in higher education

    Directory of Open Access Journals (Sweden)

    Mike Kent

    2016-09-01

    Full Text Available This paper reports on a case study of the use of Facebook in learning and teaching in higher education. Facebook was used as a venue for online discussion to support the existing Learning Management System (in this case Blackboard in the unit Internet Collaboration and Organisation as part of the Internet Communications degree taught fully online through Open Universities Australia (OUA. Students’ posts to both Facebook and the Blackboard discussion forum were analysed for content, length, and when throughout the study period they were posted. This is significant as much of the previous work in this area has relied on students self-reporting, rather than direct observation of student behaviour. These results were then compared to earlier instances of the same unit that ran within the previous twelve months, one fully online with OUA only using the Blackboard discussion group, and a second taught at Curtin University with both blended learning for students at the University’s Bentley campus as well as fully online for external students, that utilised both Blackboard and Facebook. The results show that Facebook greatly increases the level of student activity in online discussions, both absolutely and in the level of sustained activity across the unit’s study period. Facebook groups also had a different pattern of content from Blackboard. In Blackboard discussion is more focused on the set unit learning content, in Facebook students were using the groups to discuss administration and assignments and also bring in additional material from outside the units set learning materials. Facebook posts, while more sustained over the semester, were shorter in length. This study found that the addition of a Facebook discussion forum does not noticeably impact on the use of Blackboard’s discussion forum, but rather adds a new dimension to the mix of online interaction. The paper concludes that there is value in using both of these forums for student

  1. Group A rotavirus and norovirus display sharply distinct seasonal profiles in Belém, northern Brazil

    Directory of Open Access Journals (Sweden)

    Jones Anderson Monteiro Siqueira

    2013-08-01

    Full Text Available Several viruses have been associated with acute gastroenteritis (AGE, and group A rotavirus (RVA and nor-ovirus (NoV are the most prevalent. This study aimed to assess their prevalence among children hospitalised for diarrhoea during a three-year surveillance study. From May 2008-April 2011, overall positivity rates of 21.6% (628/2904 and 35.4% (171/483 were observed for RVA and NoV, respectively. The seasonality observed indicated distinct patterns when both viruses were compared. This finding may explain why hospitalisation for AGE remains constant throughout the year. Continuous AGE monitoring is needed to better assess the patterns of infection.

  2. Multi-Response Ergonomic Evaluation of Higher Age Group CNC Machine Operators

    Directory of Open Access Journals (Sweden)

    Imtiaz Ali Khan

    2014-08-01

    Full Text Available This work contributes to research on improving performance in a human-CNC machine interface (HCMI environment. A salient contribution of this study is the use of a load cell to measure human performance. The developed novel system can measure cognitive and motor action responses simultaneously. The performance measurement system designed for this work may be used in other fields where systems are operated using control panels and for observing and evaluating the responses of mentally retarded persons (or persons with symptoms of Alzheimer‟s disease. The search time, motor action time and applied force were selected as response variables to accurately evaluate a computer numerically controlled (CNC machine operator‟s performance. Based on a Taguchi experimental design, a full factorial design consisting of 27 (33 experiments was used to collect data on human performance. The collected data were analyzed using grey relational analysis, analysis of variance (ANOVA and the F-test. ANOVA was performed using Design-Expert software. The designed research was shown to have a reasonable degree of validity via a confirmation test. This study represents an effective approach for the optimization of a higher age group operator-CNC machine interface environment with multi-performance characteristics based on a combination of the Taguchi method and grey relational analysis.

  3. GPP Webinar: Solar Utilization in Higher Education Networking & Information Sharing Group: Financing Issues Discussion

    Science.gov (United States)

    This presentation from a Solar Utilization in Higher Education Networking and Information webinar covers financing and project economics issues related to solar project development in the higher education sector.

  4. Interest Groups and Governmental Institutions: The Politics of State Funding of Public Higher Education

    Science.gov (United States)

    Tandberg, David

    2010-01-01

    In attempting to explain state support of public higher education, this study develops a theory-driven, comprehensive conceptualization of the state political system within a larger theoretical framework that consists of state economic and demographic factors and higher education system attributes. Furthermore, although the higher education policy…

  5. HIV-1 group O integrase displays lower susceptibility to raltegravir and has a different mutational pathway for resistance than HIV-1 group M

    Directory of Open Access Journals (Sweden)

    Agnès Depatureaux

    2014-11-01

    Full Text Available Introduction: HIV-1 group O (HIV-O is a rare HIV-1 variant characterized by a high number of polymorphisms, especially in the integrase gene, e.g. positions L74I, S153A, G163Q and T206S. As HIV-O integrase enzymes have not previously been studied, our aim was to assess the impact of HIV-O integrase polymorphisms on susceptibility to integrase inhibitors and emergence of resistance associated mutations. Viruses and Methods: We cloned and purified integrase proteins from each of HIV-1 Group O clades A (HIV-O/A and B (HIV-O/B, a HIV-O divergent strain (HIV-O/Div, and HIV-1 group M (subtype B, HIV-M/B and characterized these enzymes for susceptibility to integrase strand transfer inhibitors (INSTIs in cell-free assays and in tissue culture, in the absence or presence of varying concentrations of several INSTIs. The inhibition constant (Ki and IC50 were calculated and compared for HIV-M and HIV-O integrases. Selections for resistance-related mutations were performed using cord blood mononuclear cells and increasing concentration of INSTIs. Results: HIV-O integrase and viruses were more susceptible to raltegravir (RAL in competitive inhibition assays and in tissue culture than were HIV-M enzymes and viruses, respectively. During selection, we observed different pathways of resistance depending on the drug and clade. Mutations selected in HIV-O can be classified as follows: (1 mutations described for HIV-M such as T97A, Q148R, V151A/I (RAL, T66I, E92Q, E157Q (EVG and M50I, R263K (DTG and (2 signature mutations for HIV-O (i.e. not described in HIV-M F121C (HIV-O/B for RAL, V75I (HIV-O/A for RAL and S153V (HIV-O/A for DTG. Only the HIV-O/Div selected the Q148R mutation for RAL and R263K+M50I for DTG, as previously described for HIV-M. None of the HIV-O viruses selected either N155H or Y143C. The selection of the specific S153V mutation could be explained at the nucleotide level: HIV-O at this position contains an alanine and substitution of alanine to

  6. Immunophenotyping of diffuse large B-cell lymphoma (DLBCL) defines multiple sub-groups of germinal centre-like tumours displaying different survival characteristics.

    Science.gov (United States)

    Anderson, John J; Fordham, Sarah; Overman, Lynne; Dignum, Helen; Wood, Katrina; Proctor, Stephen J; Crosier, Stephen; Angus, Brian; Culpin, Rachel E; Mainou-Fowler, Tryfonia

    2009-11-01

    Diffuse large B-cell lymphoma (DLBCL) forms a heterogeneous collection of aggressive non-Hodgkin's Lymphoma in which three principle classes of neoplasia have been defined according to gene expression and immunophenotyping studies. The present investigation sought to examine the immunophenotype of proposed subgroups and relate these to patient survival. A series of 155 DLBCL treated uniformly with anthracycline therapy in clinical trials, were stratified upon the basis of common biomarker expression with combination immunophenotype being related to patient overall survival. Stratification of tumours with respect to combined expression profiles of the three biological markers (CD10, Bcl-6 and MUM-1) revealed six groups showing significant differences in survival (p=0.014). The greatest difference resided between distinct populations of germinal centre (GC) cell tumours; the first being CD10-, Bcl-6+, MUM-1- and the second CD10+ Bcl-6+ MUM-1+ (p=0.002). The former group displayed median survival time of 143 months, the latter only 11 months. A third population of GC tumours (CD10+ Bcl-6+ and MUM-1-) also displayed a relative short median survival (32 months). Of the three groups presenting a non-GC or activated B cell (NGC/ABC) phenotype, only one (CD10-, Bcl-6+ and MUM-1+) presented short-term median survival (27 months) comparable with poor prognosis GC sub-populations. Within the remaining ABC tumour groups (CD10- Bcl-6- MUM-1- and CD10- Bcl-6- MUM-1+) patients presented intermediate median survival times of 54 and 58 months, respectively. Thus, the GC phenotype did not act as a universal indicator of good clinical prognosis, but rather multiple groups of GC tumours were associated with distinct overall survival profiles. Ultimately, the data allowed definition of a predictive algorithm defining three groups predicting poor, intermediate and good clinical prognosis. The first of these comprised two patient sub-populations with GC-like tumours together with one sub

  7. Effect of Group Work on EFL Students' Attitudes and Learning in Higher Education

    Science.gov (United States)

    Taqi, Hanan A.; Al-Nouh, Nowreyah A.

    2014-01-01

    The use of group work in classroom activities is a method used for motivating learning and increasing the idea of pleasure through learning. The current study investigates the advantages of group work in exams in the English department, in the College of Basic Education. 40 students in two classes of "The Introduction of Phonetics and…

  8. Using Student Group Work in Higher Education to Emulate Professional Communities of Practice

    Science.gov (United States)

    Fearon, Colm; McLaughlin, Heather; Eng, Tan Yoke

    2012-01-01

    Purpose: The purpose of this paper is to discuss the value of social learning from group work that emulates a professional community of practice. Design/methodology/approach: A thought piece that first, examines the role of group-work projects as part of social learning, then outlines key arguments for social learning based upon applying a…

  9. The Interrelations of ICT and Professional Identity: Studying Group Formations in the Context of Higher Education

    DEFF Research Database (Denmark)

    Horn, Line Helverskov

    2016-01-01

    Technology adoption and application of professionals. Educational practices of higher education are equally affected. New educational programmes emerge and course titles, pedagogies, and curricula are adapted to reflect technological changes. Thus, ICT has become a significant aspect of the content...... and statistics. When studying professional identity in the context of higher education, actors include but is not limited to students, educators, graduates, experienced professionals, but equally tools (including ICTs), curricula, professional legislation and employment statistics. The number or nature...

  10. Cutting the Cord: Student-Led Discussion Groups in Higher Education.

    Science.gov (United States)

    Kremer, John; McGuinness, Carol

    1998-01-01

    Describes the use of leaderless group discussions and peer assessment in undergraduate classes to develop teamwork skills and the capacity for independent thought and action students will need on the job. (SK)

  11. Generalization of the tensor renormalization group approach to 3-D or higher dimensions

    Science.gov (United States)

    Teng, Peiyuan

    2017-04-01

    In this paper, a way of generalizing the tensor renormalization group (TRG) is proposed. Mathematically, the connection between patterns of tensor renormalization group and the concept of truncation sequence in polytope geometry is discovered. A theoretical contraction framework is therefore proposed. Furthermore, the canonical polyadic decomposition is introduced to tensor network theory. A numerical verification of this method on the 3-D Ising model is carried out.

  12. Support Needs of the Most Vulnerable Student Groups in Non-University Higher Education

    Science.gov (United States)

    Tamuliene, Rasa

    2014-01-01

    This article presents the research on support needs of the most vulnerable students in nonuniversity higher education. The research results have revealed that older, part-time students who have family and/or work responsibilities focus on academic information and counselling, foreign language training, distance study centre, legal counselling and…

  13. School Choice Options Limit Access to Higher Education for Various Groups of Students in Quebec

    Science.gov (United States)

    Labrosse, Julie; Gaudreault, Marco; Picard, France

    2017-01-01

    The choice of selected school options by pupils in secondary school, particularly mathematics and physical sciences, have implications for future educational pathways in higher education [Felouzis, G. (1997). "L'efficacité des enseignants, Sociologie de la relation pédagogique." Paris: Presses Universitaires de France; Moreau, G. (2005).…

  14. Promoting Individual and Group Regulated Learning in Collaborative Settings: An Experience in Higher Education

    Science.gov (United States)

    Onrubia, Javier; Rochera, Maria José; Engel, Anna

    2015-01-01

    We present a teaching innovation intervention aimed at promoting individual and group learning regulation in undergraduate students working in a computer supported collaborative learning environment. Participants were 127 students and three teachers of a compulsory course on Educational Psychology at the University of Barcelona (Spain). As a…

  15. Projection displays

    Science.gov (United States)

    Chiu, George L.; Yang, Kei H.

    1998-08-01

    Projection display in today's market is dominated by cathode ray tubes (CRTs). Further progress in this mature CRT projector technology will be slow and evolutionary. Liquid crystal based projection displays have gained rapid acceptance in the business market. New technologies are being developed on several fronts: (1) active matrix built from polysilicon or single crystal silicon; (2) electro- optic materials using ferroelectric liquid crystal, polymer dispersed liquid crystals or other liquid crystal modes, (3) micromechanical-based transducers such as digital micromirror devices, and grating light valves, (4) high resolution displays to SXGA and beyond, and (5) high brightness. This article reviews the projection displays from a transducer technology perspective along with a discussion of markets and trends.

  16. Group Differences in Student Performance in the Selection to Higher Education: Tests vs Grades

    Directory of Open Access Journals (Sweden)

    Christina Wikström

    2017-08-01

    Full Text Available Student selection in the Swedish admission to higher education system is based on two fundamentally different performance measures: their criterion-referenced upper secondary grade point average (GPA and their score on a norm-referenced and multiple-choice admissions test [Swedish admissions test (SweSAT]. Several student characteristics are known to affect rankings in such assessments. The objectives of this study are to assess main and interactive effects of several variables that influence rankings obtained from these measures in greater detail than previously attempted and assess the findings from a fairness perspective. The data consist of test scores, upper secondary grades, and background information for SweSAT participants aged 19–25 years, who took the test in the autumn of 2011 (N = 23,214 or spring of 2012 (N = 27,075. The data were analyzed through correlation and regression analyses. The results support previous findings that gender, parents’ education, and immigration status are all influential. Males obtain better SweSAT scores than females, while females obtain better GPAs, in accordance with previous findings regarding gender-related variations in rankings provided by similar instruments. Moreover, we found the same pattern in scores for specific components of the test and grades in specific subjects, suggesting that the test and GPA measure different, gender-related, things. In addition, students with an immigrant background seem to be more highly ranked by grades than by the SweSAT, largely due to differences in assessments of their verbal skills.

  17. Supporting Small-Group Learning Using Multiple Web 2.0 Tools: A Case Study in the Higher Education Context

    Science.gov (United States)

    Laru, Jari; Naykki, Piia; Jarvela, Sanna

    2012-01-01

    In this single-case study, small groups of learners were supported by use of multiple social software tools and face-to-face activities in the context of higher education. The aim of the study was to explore how designed learning activities contribute to students' learning outcomes by studying probabilistic dependencies between the variables.…

  18. The Web as Process Tool and Product Environment for Group-Based Project Work in Higher Education.

    Science.gov (United States)

    Collis, Betty; Andernach, Toine; van Diepen, Nico

    This paper discusses problems confronting the use of group-based project work as an instructional strategy in higher education, and describes two technical courses (i.e., courses in online learning and applications of business information technology) at the University of Twente (Netherlands) in which course-specific World Wide Web environments are…

  19. The web as process tool and product environment for group-based project work in higher education

    NARCIS (Netherlands)

    Collis, Betty; Andernach, Toine; Diepen, van Nico; Maurer, Hermann

    1996-01-01

    This paper discusses problems confronting the use of group-based project work as an instructional strategy in higher education, and describes two technical courses (i.e., courses in online learning and applications of business information technology) at the University of Twente (Netherlands) in whic

  20. JAVA Stereo Display Toolkit

    Science.gov (United States)

    Edmonds, Karina

    2008-01-01

    This toolkit provides a common interface for displaying graphical user interface (GUI) components in stereo using either specialized stereo display hardware (e.g., liquid crystal shutter or polarized glasses) or anaglyph display (red/blue glasses) on standard workstation displays. An application using this toolkit will work without modification in either environment, allowing stereo software to reach a wider audience without sacrificing high-quality display on dedicated hardware. The toolkit is written in Java for use with the Swing GUI Toolkit and has cross-platform compatibility. It hooks into the graphics system, allowing any standard Swing component to be displayed in stereo. It uses the OpenGL graphics library to control the stereo hardware and to perform the rendering. It also supports anaglyph and special stereo hardware using the same API (application-program interface), and has the ability to simulate color stereo in anaglyph mode by combining the red band of the left image with the green/blue bands of the right image. This is a low-level toolkit that accomplishes simply the display of components (including the JadeDisplay image display component). It does not include higher-level functions such as disparity adjustment, 3D cursor, or overlays all of which can be built using this toolkit.

  1. Near isohydric grapevine cultivar displays higher photosynthetic efficiency and photorespiration rates under drought stress as compared with near anisohydric grapevine cultivar.

    Science.gov (United States)

    Hochberg, Uri; Degu, Asfaw; Fait, Aaron; Rachmilevitch, Shimon

    2013-04-01

    Drought stress is known to limit photosynthesis rates and to inflict photo-oxidative damage in grapevines. Grapevines, which are considered drought-tolerant plants, are characterized by diverse hydraulic and photosynthetic behaviors, depending on the cultivar. This research compared the photosynthesis and the photorespiration of Cabernet Sauvignon (Cs) (isohydric) and Shiraz (anisohydric) in an attempt to acquire a wider perspective on the iso/anisohydric phenomenon and its implications. Shiraz and Cs were subjected to terminal drought in the greenhouse. Soil water content (θ), leaf water potential (Ψl ) and stomata conductance (gs ) were measured to determine the cultivars' hydraulic behavior. Gas exchange and fluorometry measurements were taken at 21 and 2% O2 to acquire photosynthesis and photorespiration characteristics. Cs was found to behave in a near isohydric manner whereas Shiraz behaved in a near anisohydric manner. Compared to Shiraz, the reduced stomata conductance values of Cs were accompanied by higher water use efficiency and photorespiration rates, as well as photosystem II photochemical potential (Fv /Fm ). As compared with Shiraz, Cs compensated for lower stomata conductance by higher photosynthesis and photorespiration. These two processes contributed to higher electron flow rates that might have a role in photoinhibition avoidance, which was observed in the stability of Fv /Fm under drought stress.

  2. Universities and the State in Belgium: Past and Present Dimensions of Higher Education in a Divided Society. Yale Higher Education Research Group Working Paper 29.

    Science.gov (United States)

    Geiger, Roger L.

    This paper, part of a series of studies on higher education in different countries, traces the origins of higher education in Belgium to the 1970's. From 1835-1876, Belgium universities were shaped by polarization bewteen Catholics and liberals, uncertainty about the basic institutional patterns in higher education, and the legislative intrusion…

  3. Diacylglycerol Kinases Are Widespread in Higher Plants and Display Inducible Gene Expression in Response to Beneficial Elements, Metal, and Metalloid Ions

    Science.gov (United States)

    Escobar-Sepúlveda, Hugo F.; Trejo-Téllez, Libia I.; Pérez-Rodríguez, Paulino; Hidalgo-Contreras, Juan V.; Gómez-Merino, Fernando C.

    2017-01-01

    Diacylglycerol kinases (DGKs) are pivotal signaling enzymes that phosphorylate diacylglycerol (DAG) to yield phosphatidic acid (PA). The biosynthesis of PA from phospholipase D (PLD) and the coupled phospholipase C (PLC)/DGK route is a crucial signaling process in eukaryotic cells. Next to PLD, the PLC/DGK pathway is the second most important generator of PA in response to biotic and abiotic stresses. In eukaryotic cells, DGK, DAG, and PA are implicated in vital processes such as growth, development, and responses to environmental cues. A plethora of DGK isoforms have been identified so far, making this a rather large family of enzymes in plants. Herein we performed a comprehensive phylogenetic analysis of DGK isoforms in model and crop plants in order to gain insight into the evolution of higher plant DGKs. Furthermore, we explored the expression profiling data available in public data bases concerning the regulation of plant DGK genes in response to beneficial elements and other metal and metalloid ions, including silver (Ag), aluminum (Al), arsenic (As), cadmium (Cd), chromium (Cr), mercury (Hg), and sodium (Na). In all plant genomes explored, we were able to find DGK representatives, though in different numbers. The phylogenetic analysis revealed that these enzymes fall into three major clusters, whose distribution depends on the composition of structural domains. The catalytic domain conserves the consensus sequence GXGXXG/A where ATP binds. The expression profiling data demonstrated that DGK genes are rapidly but transiently regulated in response to certain concentrations and time exposures of beneficial elements and other ions in different plant tissues analyzed, suggesting that DGKs may mediate signals triggered by these elements. Though this evidence is conclusive, further signaling cascades that such elements may stimulate during hormesis, involving the phosphoinositide signaling pathway and DGK genes and enzymes, remain to be elucidated.

  4. New Ways of Seeing and Being: Evaluating an Acceptance and Mindfulness Group for Parents of Young People with Intellectual Disabilities Who Display Challenging Behaviour

    Science.gov (United States)

    Reid, Caroline; Gill, Freya; Gore, Nick; Brady, Serena

    2016-01-01

    The current study presents findings from an acceptance and commitment therapy-based intervention for family carers of children who have an intellectual/developmental disability and display high levels of challenging behaviour. The parent well-being workshops consist of two workshops incorporating acceptance and mindfulness-based exercises and…

  5. Participation in higher education in Australia among under-represented groups: What can we learn from the Higher Education Participation Program to better support Indigenous learners?

    Directory of Open Access Journals (Sweden)

    James A Smith

    2015-10-01

    Full Text Available In 1988 the release of the Higher Education: A Policy Statement White Paper focused Australia’s national higher education equity policy on “changing the balance of the student population to reflect more closely the composition of society as a whole” (Dawkins 1990, 2-3. While improvement in access and participation has been noted for women, people from non-English speaking backgrounds, and people with disabilities, the interventions has remained less effective for people from Lower Socio-Economic Status (LSES backgrounds, Indigenous peoples; rural, regional and remote residents; (Gale & Tranter, 2011; Koshy & Seymour 2014. In 2009, in response to the Bradley Review (2008, the Australian government set a new agenda again focused on equitable participation in higher education, along with associated equity targets (which have since been abandoned, and funding to enable this reform as well as increased participation. Funding was delivered through the Higher Education Participation and Partnerships Program (HEPPP, renamed the Higher Education Participation Program (HEPP in 2015 (Australian Government Department of Education and Training, 2015. A range of national partnerships, policy initiatives and programs has been used to facilitate improved achievement in schools as well as enable access, participation and achievement in higher education. These actions have included targeted programs through the use of intervention strategies aimed at widening participation in, and improving access to higher education.

  6. Pseudomonas aeruginosa isolates from dental unit waterlines can be divided in two distinct groups, including one displaying phenotypes similar to isolates from cystic fibrosis patients

    Directory of Open Access Journals (Sweden)

    Myriam eOuellet

    2015-01-01

    Full Text Available Pseudomonas aeruginosa displays broad genetic diversity, giving it an astonishing capacity to adapt to a variety of environments and to infect a wide range of hosts. While many P. aeruginosa isolates of various origins have been analyzed, isolates from cystic fibrosis patients have received the most attention. Less is known about the genetic and phenotypic diversity of P. aeruginosa isolates that colonize other environments where flourishing biofilms can be found. In the present study, 29 P. aeruginosa isolates from dental unit waterlines and cystic fibrosis patients were collected and their genetic and phenotypes profiles were compared to determine whether environmental and clinical isolates are related. The isolates were first classified using the random amplified polymorphic DNA (RAPD method. This made it possible to distribute the isolates into one clinical cluster and two environmental clusters. The isolates in the environmental cluster that were genetically closer to the clinical cluster also displayed phenotypes similar to the clinical isolates. The isolates from the second environmental cluster displayed opposite phenotypes, particularly an increased capacity to form biofilms. The isolates in this cluster were also the only ones harboring genes that encoded specific epimerases involved in the synthesis of lipopolysaccharides, which could explain their increased ability to form biofilms. In conclusion, the isolates from the dental unit waterlines could be distributed into two clusters, with some of the environmental isolates resembled the clinical isolates.

  7. Higher Prostate Cancer Grade Groups Are Detected in Patients Undergoing Multiparametric MRI-targeted Biopsy Compared With Standard Biopsy.

    Science.gov (United States)

    Gordetsky, Jennifer B; Thomas, John V; Nix, Jeffrey W; Rais-Bahrami, Soroush

    2017-01-01

    Recent studies have suggested that multiparametric magnetic resonance imaging (MRI)/ultrasound (US) fusion-guided prostate biopsy can detect more clinically significant prostate cancers, which could impact patient management. As many of the studies evaluating MRI/US fusion-guided prostate biopsy were conducted in specialized quaternary care centers, the question remains whether this technology is transferable to general practice. Our study assesses the diagnostic ability of MRI/US fusion-guided prostate biopsy compared with standard biopsy in the new era of prostate cancer Grade Grouping. We reviewed our prostate biopsy database evaluating men who underwent MRI/US fusion-guided prostate biopsy with concurrent standard 12-core extended-sextant biopsy. Patient demographics and pathologic findings were reviewed. All patient biopsies were performed by 1 of 2 urologic oncologists. Tumors were given a Grade Group for each biopsy based on the core with the highest grade in each case. A total of 191 patients underwent MRI/US fusion-guided biopsy with concurrent 12-core extended sextant biopsy, with a cancer detection rate of 56%. The average number of biopsy cores obtained via the targeted approach was significantly less than those obtained by standard biopsy, 4.8 cores versus 12 cores, respectively, Pbiopsy, 41.4% and 49.2%, respectively, P=0.15. However, when comparing the 2 techniques, the degree of detection of ≥Grade Group 3 tumors significantly favored targeted biopsy over standard biopsy (P=0.009). MRI/US fusion-guided prostate biopsy is equivalent to the standard-of-care 12-core biopsy in terms of cancer detection and superior in detecting higher grade disease.

  8. Multi-criteria Group Decision Making Approach for Teacher Recruitment in Higher Education under Simplified Neutrosophic Environment

    Directory of Open Access Journals (Sweden)

    Kalyan Mondal

    2014-12-01

    Full Text Available Teacher recruitment is a multi-criteria group decisionmaking process involving subjectivity, imprecision, and fuzziness that can be suitably represented by neutrosophic sets. Neutrosophic set, a generalization of fuzzy sets is characterized by a truth-membership function, falsity-membership function and an indeterminacy-membership function. These functions are real standard or non-standard subsets of ] 0-, 1+[ .There is no restriction on the sum of the functions, so the sum lies between ]0-, 3+[. A neutrosophic approach is a more general and suitable way to deal with imprecise information, when compared to a fuzzy set. The purpose of this study is to develop a neutrosophic multi-criteria group decision-making model based on hybrid scoreaccuracy functions for teacher recruitment in higher education. Eight criteria obtained from expert opinions are considered for recruitment process. The criteria are namely academic performance index, teaching aptitude, subject knowledge, research experience, leadership quality, personality, management capacity, and personal values. In this paper we use the score and accuracy functions and the hybrid score-accuracy functions of single valued neutrosophic numbers (SVNNs and ranking method for SVNNs. Then, multi-criteria group decision-making method with unknown weights for attributes and incompletely known weights for decision makers is used based on the hybrid score-accuracy functions under single valued neutrosophic environments. We use weight model for attributes based on the hybrid score-accuracy functions to derive the weights of decision makers and attributes from the decision matrices represented by the form of SVNNs to decrease the effect of some unreasonable evaluations. Moreover, we use the overall evaluation formulae of the weighted hybrid scoreaccuracy functions for each alternative to rank the alternatives and recruit the most desirable teachers. Finally, an educational problem for teacher selection is

  9. The Additive Impact of Group and Individual Publicly Displayed Feedback: Examining Individual Response Patterns and Response Generalization in a Safe-Driving Occupational Intervention

    Science.gov (United States)

    Ludwig, Timothy D.; Geller, E. Scott; Clarke, Steven W.

    2010-01-01

    Additive effects of publicly posting individual feedback following group goal-setting and feedback were evaluated. The turn-signal use of pizza deliverers was studied in a multiple baseline design across two pizza stores. After baseline observations, pizza deliverers voted on a group turn-signal goal and then received 4 weeks of group feedback on…

  10. GPP Webinar: Solar Utilization in Higher Education Networking & Information Sharing Group: RFP, Contract, and Administrative Issues Discussion

    Science.gov (United States)

    This presentation from a Solar Utilization in Higher Education Networking and Information webinar covers contracts, Request for Proposals (RFPs), and administrative issues related to solar project development in the higher education sector.

  11. Effects of Group Work on English Communicative Competence of Chinese International Graduates in United States Institutions of Higher Education

    Science.gov (United States)

    Xue, Mo

    2013-01-01

    This qualitative study investigated 14 Chinese international graduate students' lived experiences with group work and the effects of group work on their English communicative competence. The interview results showed that these participants' attitudes towards group work went through changes from initial inadaptation or dislike to later adaptation…

  12. Rapid display of radiographic images

    Science.gov (United States)

    Cox, Jerome R., Jr.; Moore, Stephen M.; Whitman, Robert A.; Blaine, G. James; Jost, R. Gilbert; Karlsson, L. M.; Monsees, Thomas L.; Hassen, Gregory L.; David, Timothy C.

    1991-07-01

    The requirements for the rapid display of radiographic images exceed the capabilities of widely available display, computer, and communications technologies. Computed radiography captures data with a resolution of about four megapixels. Large-format displays are available that can present over four megapixels. One megapixel displays are practical for use in combination with large-format displays and in areas where the viewing task does not require primary diagnosis. This paper describes an electronic radiology system that approximates the highest quality systems, but through the use of several interesting techniques allows the possibility of its widespread installation throughout hospitals. The techniques used can be grouped under three major system concepts: a local, high-speed image server, one or more physician's workstations each with one or more high-performance auxiliary displays specialized to the radiology viewing task, and dedicated, high-speed communication links between the server and the displays. This approach is enhanced by the use of a progressive transmission scheme to decrease the latency for viewing four megapixel images. The system includes an image server with storage for over 600 4-megapixel images and a high-speed link. A subsampled megapixel image is fetched from disk and transmitted to the display in about one second followed by the full resolution 4-megapixel image in about 2.5 seconds. Other system components include a megapixel display with a 6-megapixel display memory space and frame-rate update of image roam, zoom, and contrast. Plans for clinical use are presented.

  13. Decision-Making Models with Sets of Strategies for Applications to Individuals and Groups in Higher Education.

    Science.gov (United States)

    Gill, Wanda E.

    Three decision-making models that have applications for college presidents and administrators are reviewed. While both individual and group decision-making are addressed, emphasis is placed on the importance of group decisions on institutional policy planning. The model of Edmund M. Burke (1979) presents specific decision-making strategies in…

  14. Methods for Dealing with Communication Apprehension in Higher Education Speech Instruction via Use of Small Group Modalities.

    Science.gov (United States)

    Crump, Charla A.; Dudley, Jack A.

    Noting that many university speech students suffer from communication apprehension (CA) and must face the fear and anxiety of performance in front of the class, a study examined the effectiveness of group discussion, interpersonal communication, public speaking, and small group activities and interactions in reducing CA. Subjects, 57 students,…

  15. "It's a Bit of a Generalisation, but …": Participant Perspectives on Intercultural Group Assessment in Higher Education

    Science.gov (United States)

    Moore, Paul; Hampton, Greg

    2015-01-01

    This paper reports on domestic and international students' perceptions of the influence of group diversity on communication, learning, task performance and assessment grades. The study's methodology involved quantitative and qualitative analysis of surveys (N?=?312), focus group interviews of students (n?=?26) and individual staff interviews…

  16. Resolving the higher-order phylogenetic relationships of the circumtropical Mabuya group (Squamata: Scincidae): An out-of-Asia diversification.

    Science.gov (United States)

    Karin, Benjamin R; Metallinou, Margarita; Weinell, Jeffrey L; Jackman, Todd R; Bauer, Aaron M

    2016-09-01

    Despite an abundance of phylogenetic studies focused on intrageneric relationships of members of the Mabuya group, the intergeneric relationships have remained difficult to resolve. The most-persistent unresolved regions of the phylogeny of the group include: (1) the placement of the Middle-Eastern Trachylepis with respect to the Afro-Malagasy Trachylepis and its taxonomic status; (2) the phylogenetic position of the Cape Verdean Chioninia within the larger Mabuya group; (3) support for the placement of Dasia with respect to the entire group; and (4) the phylogenetic placement of Eutropis novemcarinata with respect to other Eutropis and Dasia. In this study, we include representatives of all these taxa as well as African Eumecia and Neotropical Mabuya. We seek to address these phylogenetic and systematic issues by generating a well-resolved and supported phylogeny for the Mabuya group as a whole that can be used to develop a stable taxonomy and reconstruct the geographic patterns of diversification within the group. To meet these goals, we built a large multi-locus dataset of 11 markers (nine nuclear and two mitochondrial), and performed concatenated and species tree analyses to generate a well-supported phylogeny for the group. Statistical topology tests reject the monophyly of Middle-Eastern Trachylepis with Afro-Malagasy Trachylepis, and to reflect monophyly we place the Middle-Eastern species into a previously described genus, Heremites. Cape-Verdean Chioninia are resolved as the strongly supported sister-group to Afro-Malagasy Trachylepis. Monophyly of the Southeast-Asian genera, Eutropis and Dasia, is not supported, with a clade composed of Dasia+Eutropis novemcarinata more closely related to the rest of the Mabuya group than to the remaining Eutropis. The phylogenetic position of E. novemcarinata renders Eutropis polyphyletic, and we therefore describe and place E. novemcarinata into a new monotypic genus, Toenayar, to preserve monophyly among the genera. In

  17. Organizational fields and competitive groups in higher education: Some lessons from the Bachelor/Master reform in Germany

    OpenAIRE

    Krücken, Georg

    2007-01-01

    The implementation of the Bachelor and Master reform in German universities happens at a surprisingly rapid pace. Apparently, a higher education system which by most observers is characterized as being reluctant to change can quickly embrace the Bologna process, which aims at a common European higher education area until 2010. In this article the main driving-forces underlying the rapid reform process are identified with the help of some conceptual tools from the new institutionalism in organ...

  18. Data Display Markup Language (DDML) Handbook

    Science.gov (United States)

    2017-01-31

    Moreover, the tendency of T&E is towards a plug-and-play-like data acquisition system that requires standard languages and modules for data displays...Telemetry Group DOCUMENT 127-17 DATA DISPLAY MARKUP LANGUAGE (DDML) HANDBOOK DISTRIBUTION A: APPROVED FOR...DOCUMENT 127-17 DATA DISPLAY MARKUP LANGUAGE (DDML) HANDBOOK January 2017 Prepared by Telemetry Group

  19. Continuous cohomology of groups of volume-preserving and symplectic diffepmorphisms, measurable transfer and higher asymptotic cycles

    CERN Document Server

    Reznikov, A G

    1997-01-01

    I construct the real counterparts (which I call Borel-Bott classes) of the R/Z classes constructed in "Characteristic classes in symplectic topology", to appear, in the cohomology of volume-preserving and symplectomorhisms of a compact (symplectic) manifold.I show that, for the symplectic action of the mapping class group in the moduli space of stable vector bundles over a Riemann surface, the restriction of the first constructed class from the symplectomorphism group gives a generator for the second (bounded) cohomology of the mapping class group.

  20. A group of patients with Marfan's syndrome, who have finger and toe contractures, displays tendons' alterations upon an ultrasound examination: are these features common among classical Marfan patients?

    Science.gov (United States)

    Melchiorre, Daniela; Pratelli, Elisa; Torricelli, Elena; Sofi, Francesco; Abbate, Rosanna; Matucci-Cerinic, Marco; Gensini, GianFranco; Pepe, Guglielmina

    2016-08-01

    The involvement of the musculoskeletal system with other mild pleiotropic manifestations represents a clinical criterion, called "systemic features," to d iagnose Marfan's syndrome. We aimed to investigate the features of the hands and feet redressable contractures present in a group of Marfan patients. In 13 patients with previously diagnosed Marfan's syndrome, an accurate clinical examination was performed. In particular the characterization of the musculoskeletal system by visual analogic scale to measure muscle pain (VAS) and muscle strength (MRC system) was carried out; the Beighton scale score was used to evaluate the articular hypermobility. Ultrasound examination (US) was performed to detect deep-superficial flexor tendons and extensor tendons of both hands, and the short and long flexor and extensor tendons of the fingers and toes in static and dynamic positions. The ImageJ program was adopted to measure a profile of tendon echo-intensity. A reduction of the thickness of all tendons was detected by US in our patients; the VAS and Beighton scale scores were in normal ranges. The profile of tendon echo-intensity showed different textural details in all Marfan patients. This study provides evidence for other contractures' localization, and for altered findings of the tendons in patients with Marfan syndrome and finger/toe contractures. These changes may be associated with structural modifications in connective tissue.

  1. Efficiency and Effectiveness in Higher Education: A Report by the Universities UK Efficiency and Modernisation Task Group

    Science.gov (United States)

    Universities UK, 2011

    2011-01-01

    Effectiveness, efficiency and value for money are central concerns for the higher education sector. In England, decisions made by the current Government will effect a radical change in the funding for teaching. Institutions will be managing a reduction in public funding for teaching and the transition to the new system of graduate contributions,…

  2. USE OF E-LEARNING TOOLS TO SOLVE GROUP WORK PROBLEMS IN HIGHER EDUCATION: A CASE STUDY OF GULF COUNTRY

    Directory of Open Access Journals (Sweden)

    HABIB ULLAH KHAN

    2013-07-01

    Full Text Available Communication has a role of heart in all kinds of educational interactions, with the popularization of computer technology for home and office use, teaching methods have changed communication styles from plain lectures to multimedia presentations. These new trends in education are in their infancy, online learning or E-learning, and are quickly becoming an important aspect of education in our future around the world. In spite of easy availability of new multimedia support, still the uses of technological tools of communication in the educational fields are in their initial stages, in the under developing countries like Oman. We have yet to fully experience the transformative effects of these mediums, particularly on web based learning. Group work activities are another main point or task in the high education. Switzer and Shriner [20] were of the view that students are the most obvious party who benefit from group work among students, faculty members, and the community. According to them there are four overlapping types of benefits for students. These are: 1 immediate educational benefits, 2 immediate social benefits, 3 critical thinking benefits, and 4 long-term career benefits. Different researchers were of the opinion that face to face communication will not solve the empowerment problems in group work activities. As, through FTF interaction male dominant role can be produced due to identity of speaker, eye contact, nodding, moving the hands , and facial expressions etc. In this situation suitable adoption of technology can be consider as an alternative mode of communication, where there is a chance of discrimination. This case study will be a further step in addition to the previous technological tools & group work related researches. In this researcher will try to explore that how suitable technological tools can play a role to overcome the group work problems and to increase the performance of the students in the developing countries like

  3. Displaying gray shades in liquid crystal displays

    Indian Academy of Sciences (India)

    T N Ruckmongathan

    2003-08-01

    Quality of image in a display depends on the contrast, colour, resolution and the number of gray shades. A large number of gray shades is necessary to display images without any contour lines. These contours are due to limited number of gray shades in the display causing abrupt changes in grayness of the image, while the original image has a gradual change in brightness. Amplitude modulation has the capability to display a large number of gray shades with minimum number of time intervals [1,2]. This paper will cover the underlying principle of amplitude modulation, some variants and its extension to multi-line addressing. Other techniques for displaying gray shades in passive matrix displays are reviewed for the sake of comparison.

  4. Invisible Display in Aluminum

    DEFF Research Database (Denmark)

    Prichystal, Jan Phuklin; Hansen, Hans Nørgaard; Bladt, Henrik Henriksen

    2005-01-01

    for an integrated display in a metal surface is often ruled by design and functionality of a product. The integration of displays in metal surfaces requires metal removal in order to clear the area of the display to some extent. The idea behind an invisible display in Aluminum concerns the processing of a metal...

  5. BOUNDEDNESS OF FRACTIONAL MAXIMAL OPERATOR AND THEIR HIGHER ORDER COMMUTATORS IN GENERALIZED MORREY SPACES ON CARNOT GROUPS

    Institute of Scientific and Technical Information of China (English)

    Vagif GULIYEV; Ali AKBULUT; Yagub MAMMADOV

    2013-01-01

    In the article we consider the fractional maximal operator Mα, 0≤αgroup G (i.e., nilpotent stratified Lie group) in the generalized Morrey spaces Mp,ϕ(G), where Q is the homogeneous dimension of G. We find the conditions on the pair (ϕ1,ϕ2) which ensures the boundedness of the operator Mα from one generalized Morrey space Mp,ϕ1 (G) to another Mq,ϕ2 (G), 1 < p ≤ q < ∞, 1/p−1/q = α/Q, and from the space M1,ϕ1 (G) to the weak space W Mq,ϕ2 (G), 1 ≤ q < ∞, 1−1/q = α/Q. Also find conditions on theϕwhich ensure the Adams type boundedness of the Mαfrom Mp,ϕ1p (G) to Mq,ϕ1q (G) for 1

  6. Sensitivity for Diagnosing Group A Streptococcal Pharyngitis from Manufacturers is 10% Higher than Reported in Peer-Reviewed Publications.

    Science.gov (United States)

    Vachhani, Raj; Patel, Toral; Centor, Robert M; Estrada, Carlos A

    2017-01-01

    Meta-analyses based on peer-reviewed publications report a sensitivity of approximately 85% for rapid antigen streptococcus tests to diagnose group A streptococcal (GAS) pharyngitis. Because these meta-analyses excluded package inserts, we examined the test characteristics of rapid antigen streptococcal tests and molecular methods that manufacturers report in their package inserts. We included tests available in the US market (Food and Drug Administration, period searched 1993-2015) and used package insert data to calculate pooled sensitivity and specificity. To examine quality, we used the Quality Assessment of Diagnostic Accuracy Studies-2. We excluded 26 tests having different trade names but identical methods and data. The study design was prospective in 41.7% (10 of 24). The pooled sensitivity of the most commonly used method, lateral flow/immunochromatographic, was 95% (95% confidence interval [CI] 94-96) and the pooled specificity was 98% (96-98); 7108 patients. The pooled sensitivity of the polymerase chain reaction or molecular methods was 98% (95% CI 96-98) and the pooled specificity was 96% (95% CI 95-97); 5685 patients. Package inserts include sponsored studies that overestimate the sensitivity of rapid tests to diagnose GAS pharyngitis by approximately 10%. Physicians should understand that package inserts overestimate diagnostic test utility; a negative test cannot be used to exclude GAS pharyngitis.

  7. Higher quality of life and lower depression for people on ART in Uganda as compared to a community control group.

    Directory of Open Access Journals (Sweden)

    Faith Martin

    Full Text Available Provision of antiretroviral treatment (ART to people living with HIV (PLWH has increased globally. Research measuring whether ART restores subjective well-being to "normal" levels is lacking, particularly in resource limited settings. The study objectives are to compare quality of life and depression symptoms for PLWH on ART to a general community population and to explore factors to explain these differences, including socio-economic status and the impact of urban or rural residence. PLWH on ART (n = 263 were recruited from ART delivery sites and participants not on ART (n = 160 were recruited from communities in Wakiso District, Uganda. Participants were interviewed using the translated World Health Organisation Quality of Life brief measure, the Hopkins Symptom Checklist depression section, and questions about socio-economic status, residence as urban or rural and, for PLWH on ART, self-reported adherence and use of HIV counselling. Compared to the community sample and controlling for location of residence, PLWH on ART had significantly higher quality of life (QOL for physical, psychological and environment domains, but not the social domain. These differences were not due to socio-economic status alone. Depression scores were significantly lower for PLWH on ART. Both comparisons controlled for the effect of location of residence. People on ART self-reported high adherence and the majority had used HIV counselling services. Our findings show better QOL amongst PLWH on ART compared to a general community sample, which cannot be explained solely by differences in socio-economic status nor location of residence. The general community sample results point towards the challenges of life in this setting. Access to health services may underpin this difference and further research should explore this finding, in addition to identification of psychological mechanisms that relate to better QOL. ART provision infrastructure has clear benefits

  8. Higher frequency of secretor phenotype in O blood group – its benefits in prevention and/or treatment of some diseases

    Directory of Open Access Journals (Sweden)

    Mohamad Salih Jaff

    2010-11-01

    Full Text Available Mohamad Salih JaffPathology Department, Hawler Medical University (Formerly Salahaddin University, Erbil, Kurdistan Region, IraqAbstract: ABO blood groups and secretor status are important in clinical and forensic medicine and in relation to some diseases. There are geographic and racial differences in their frequencies, but the frequency of secretor status in different ABO blood group systems has not been determined yet. Therefore, the aim of this study was mainly to determine this point. Blood and saliva from 762 randomly selected apparently healthy adult individuals (480 men and 282 women were examined to determine their ABO and Rhesus blood groups by standard conventional methods, and their secretor status by using Lewis blood grouping and/or hemagglutination inhibition test of saliva. Results showed that 76.1% of the study population were ABH blood group antigens secretors and 23.9% were nonsecretors. The frequencies of secretor status in different ABO blood groups were 70.1% in group A, 67.8% in group B, 67.9% in group AB, and 88.3% in group O. In conclusion, blood group O individuals have significantly higher frequency of secretor status than non-O blood group individuals. This finding would be beneficial to them, protecting them, at least partially, from certain malignancies or allowing them to have less aggressive disease, and this finding might be useful in enhancing further studies and research in this direction.Keywords: blood group O, ABO blood groups, secretor phenotype, frequency, malignancies, prevention and/or treatment

  9. The relationship between career mobility and occupational expertise : a retrospective study among higher-level Dutch professionals in three age groups

    NARCIS (Netherlands)

    Heijden, van der Beatrice

    2003-01-01

    The present study investigates the relationship between two career-related variables and occupational expertise of higher-level employees from large working organisations in three different age groups. The factors in question are: total number of jobs that have been performed; and the average period

  10. A Multi Criteria Group Decision-Making Model for Teacher Evaluation in Higher Education Based on Cloud Model and Decision Tree

    Science.gov (United States)

    Chang, Ting-Cheng; Wang, Hui

    2016-01-01

    This paper proposes a cloud multi-criteria group decision-making model for teacher evaluation in higher education which is involving subjectivity, imprecision and fuzziness. First, selecting the appropriate evaluation index depending on the evaluation objectives, indicating a clear structural relationship between the evaluation index and…

  11. Handbook of display technology

    CERN Document Server

    Castellano, Joseph A

    1992-01-01

    This book presents a comprehensive review of technical and commercial aspects of display technology. It provides design engineers with the information needed to select proper technology for new products. The book focuses on flat, thin displays such as light-emitting diodes, plasma display panels, and liquid crystal displays, but it also includes material on cathode ray tubes. Displays include a large number of products from televisions, auto dashboards, radios, and household appliances, to gasoline pumps, heart monitors, microwave ovens, and more.For more information on display tech

  12. Wearable and augmented reality displays using MEMS and SLMs

    OpenAIRE

    Ürey, Hakan; Ulusoy, Erdem; Akşit, Kaan; Hossein, Amir; Niaki, Ghanbari

    2016-01-01

    In this talk, we present the various types of 3D displays, head-mounted projection displays and wearable displays developed in our group using MEMS scanners, compact RGB laser light sources, and spatial light modulators.

  13. Wearable and augmented reality displays using MEMS and SLMs

    Science.gov (United States)

    Urey, Hakan; Ulusoy, Erdem; Kazempourradi, Seyedmahdi M. K.; Mengu, Deniz; Olcer, Selim; Holmstrom, Sven T.

    2016-03-01

    In this talk, we present the various types of 3D displays, head-mounted projection displays and wearable displays developed in our group using MEMS scanners, compact RGB laser light sources, and spatial light modulators.

  14. A Compressive Superresolution Display

    KAUST Repository

    Heide, Felix

    2014-06-22

    In this paper, we introduce a new compressive display architecture for superresolution image presentation that exploits co-design of the optical device configuration and compressive computation. Our display allows for superresolution, HDR, or glasses-free 3D presentation.

  15. Lunar Sample Display Locations

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA provides a number of lunar samples for display at museums, planetariums, and scientific expositions around the world. Lunar displays are open to the public....

  16. Book Display as Adult Service.

    Science.gov (United States)

    Moore, Matthew S.

    1997-01-01

    Defines book display as an adult service as choosing and positioning adult books from the library collection to increase their circulation. The author contrasts bookstore arrangement for sales versus library arrangement for access, including contrasting missions, genre grouping, weeding, problems, and dimensions. (Author/LRW)

  17. Effect of Oculus Rift head mounted display on postural stability

    DEFF Research Database (Denmark)

    Epure, Paula; Gheorghe, Cristina; Nissen, Thomas;

    2016-01-01

    This study explored how a HMD-experienced virtual environment influences physical balance of six balance-impaired adults 59-69 years-of-age, when compared to a control group of eight non-balance-impaired adults, 18-28 years-of-age. The setup included a Microsoft Kinect and a bespoke balance board...... controlling a Virtual Reality skiing game. Two tests were conducted: full-vision versus blindfolded and HMD versus monitor display. Results indicate five of the six balance-impaired adults and six of the eight non-balance-impaired adults showed higher degree of postural stability while using a monitor display...

  18. Invisible Display in Aluminum

    DEFF Research Database (Denmark)

    Prichystal, Jan Phuklin; Hansen, Hans Nørgaard; Bladt, Henrik Henriksen

    2005-01-01

    Bang & Olufsen a/s has been working with ideas for invisible integration of displays in metal surfaces. Invisible integration of information displays traditionally has been possible by placing displays behind transparent or semitransparent materials such as plastic or glass. The wish for an integ...... be obtained by shining light from the backside of the workpiece. When there is no light from the backside, the front surface seems totally untouched. This was achieved by laser ablation with ultra-short pulses.......Bang & Olufsen a/s has been working with ideas for invisible integration of displays in metal surfaces. Invisible integration of information displays traditionally has been possible by placing displays behind transparent or semitransparent materials such as plastic or glass. The wish...... for an integrated display in a metal surface is often ruled by design and functionality of a product. The integration of displays in metal surfaces requires metal removal in order to clear the area of the display to some extent. The idea behind an invisible display in Aluminum concerns the processing of a metal...

  19. Polyplanar optic display

    Energy Technology Data Exchange (ETDEWEB)

    Veligdan, J.; Biscardi, C.; Brewster, C.; DeSanto, L. [Brookhaven National Lab., Upton, NY (United States). Dept. of Advanced Technology; Beiser, L. [Leo Beiser Inc., Flushing, NY (United States)

    1997-07-01

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. This display screen is 2 inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. The new display uses a 100 milliwatt green solid state laser (532 nm) as its optical source. In order to produce real-time video, the laser light is being modulated by a Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments, Inc. A variable astigmatic focusing system is used to produce a stigmatic image on the viewing face of the POD. In addition to the optical design, the authors discuss the electronic interfacing to the DLP{trademark} chip, the opto-mechanical design and viewing angle characteristics.

  20. 高职大学语文小组活动有效性研究%Research on the Effectiveness of Chinese Group Activities in Higher Vocational Colleges

    Institute of Scientific and Technical Information of China (English)

    潘美明

    2015-01-01

    The group activity reflects the new concept of the students as the center and the ability as the standard,and it is a main teaching method in the Chinese course of higher vocational colleges.At present,there are some problems in the higher vo-cational Chinese group activities,which affect the effectiveness of the group's activities in many aspects:learning task factors, team members and cooperative relationship factors,teacher role factors,etc..In order to improve the effectiveness of the group activities,it is necessary to design the effective design task,the effective formation of the group,the effective organization of the implementation,effective summary evaluation.%小组活动体现了以学生为中心、以能力为本位的教学新理念,是高职大学语文课程采用的一种主要的教学方式。目前高职语文小组活动还存在一些问题,影响小组活动有效性的因素有多个方面:学习任务因素、小组成员及合作关系因素、教师角色因素等。要提高小组活动的有效性,就必须有效设计任务、有效组建小组、有效组织实施、有效总结评价。

  1. OLED displays and lighting

    CERN Document Server

    Koden, Mitsuhiro

    2017-01-01

    Organic light-emitting diodes (OLEDs) have emerged as the leading technology for the new display and lighting market. OLEDs are solid-state devices composed of thin films of organic molecules that create light with the application of electricity. OLEDs can provide brighter, crisper displays on electronic devices and use less power than conventional light-emitting diodes (LEDs) or liquid crystal displays (LCDs) used today. This book covers both the fundamentals and practical applications of flat and flexible OLEDs.

  2. Scalable Resolution Display Walls

    KAUST Repository

    Leigh, Jason

    2013-01-01

    This article will describe the progress since 2000 on research and development in 2-D and 3-D scalable resolution display walls that are built from tiling individual lower resolution flat panel displays. The article will describe approaches and trends in display hardware construction, middleware architecture, and user-interaction design. The article will also highlight examples of use cases and the benefits the technology has brought to their respective disciplines. © 1963-2012 IEEE.

  3. Frequent Canned Food Use is Positively Associated with Nutrient-Dense Food Group Consumption and Higher Nutrient Intakes in US Children and Adults

    Directory of Open Access Journals (Sweden)

    Kevin B. Comerford

    2015-07-01

    Full Text Available In addition to fresh foods, many canned foods also provide nutrient-dense dietary options, often at a lower price, with longer storage potential. The aim of this study was to compare nutrient-dense food group intake and nutrient intake between different levels of canned food consumption in the US. Consumption data were collected for this cross-sectional study from 9761 American canned food consumers (aged two years and older from The NPD Group’s National Eating Trends® (NET® database during 2011–2013; and the data were assessed using The NPD Group’s Nutrient Intake Database. Canned food consumers were placed into three groups: Frequent Can Users (≥6 canned items/week; n = 2584, Average Can Users (3–5 canned items/week; n = 4445, and Infrequent Can Users (≤2 canned items/week; n = 2732. The results provide evidence that Frequent Can Users consume more nutrient-dense food groups such as fruits, vegetables, dairy products, and protein-rich foods, and also have higher intakes of 17 essential nutrients including the shortfall nutrients—potassium, calcium and fiber—when compared to Infrequent Can Users. Therefore, in addition to fresh foods, diets higher in nutrient-dense canned food consumption can also offer dietary options which improve nutrient intakes and the overall diet quality of Americans.

  4. “I Want to be There When He Graduates:” Foster Parents Show Higher Levels of Commitment than Group Care Providers

    Science.gov (United States)

    Lo, Albert; Roben, Caroline K.P.; Maier, Collin; Fabian, Kim; Shauffer, Carole; Dozier, Mary

    2015-01-01

    Group care is a frequent placement for adolescents placed in out of home care when their birth parents’ care is deemed unsafe. In the present study, we assessed whether foster parents show greater commitment to children than group care providers. Given that group care represents a number of living arrangements, we considered both shift care (where staff work shifts and do not live with the children) and cottage care (where staff live for extended periods of time with the children in a group living context). Commitment was assessed using the This Is My Child Interview (adapted for adolescents). Thirty-one foster parents, 18 shift workers, and 28 cottage care providers were interviewed. As predicted, foster parents showed higher levels of commitment than both shift care workers and cottage care providers, and the associations held when children’s externalizing behaviors and the number of children the caregivers had cared for were controlled. The results suggest that foster care promotes greater commitment among caregivers than other out of home placements, and add to other findings that favor foster care as the out of home placement of choice for adolescents. PMID:25937687

  5. Standardizing visual display quality

    NARCIS (Netherlands)

    Besuijen, Ko; Spenkelink, Gerd P.J.

    1998-01-01

    The current ISO 9241–3 standard for visual display quality and the proposed user performance tests are reviewed. The standard is found to be more engineering than ergonomic and problems with system configuration, software applications, display settings, user behaviour, wear and physical environment

  6. Polyplanar optical display electronics

    Energy Technology Data Exchange (ETDEWEB)

    DeSanto, L.; Biscardi, C. [Brookhaven National Lab., Upton, NY (United States). Dept. of Advanced Technology

    1997-07-01

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. The prototype ten inch display is two inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. In order to achieve a long lifetime, the new display uses a 100 milliwatt green solid-state laser (10,000 hr. life) at 532 nm as its light source. To produce real-time video, the laser light is being modulated by a Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments. In order to use the solid-state laser as the light source and also fit within the constraints of the B-52 display, the Digital Micromirror Device (DMD{trademark}) circuit board is removed from the Texas Instruments DLP light engine assembly. Due to the compact architecture of the projection system within the display chassis, the DMD{trademark} chip is operated remotely from the Texas Instruments circuit board. The authors discuss the operation of the DMD{trademark} divorced from the light engine and the interfacing of the DMD{trademark} board with various video formats (CVBS, Y/C or S-video and RGB) including the format specific to the B-52 aircraft. A brief discussion of the electronics required to drive the laser is also presented.

  7. Helmet-Mounted Displays (HMD)

    Data.gov (United States)

    Federal Laboratory Consortium — The Helmet-Mounted Display labis responsible for monocular HMD day display evaluations; monocular HMD night vision performance processes; binocular HMD day display...

  8. Visual merchandising window display

    Directory of Open Access Journals (Sweden)

    Opris (Cas. Stanila M.

    2013-12-01

    Full Text Available Window display plays a major part in the selling strategies; it does not only include the simple display of goods, nowadays it is a form of art, also having the purpose of sustaining the brand image. This article wants to reveal the tools that are essential in creating a fabulous window display. Being a window designer is not an easy job, you have to always think ahead trends, to have a sense of colour, to know how to use light to attract customers in the store after only one glance at the window. The big store window displays are theatre scenes: with expensive backgrounds, special effects and high fashion mannequins. The final role of the displays is to convince customers to enter the store and trigger the purchasing act which is the final goal of the retail activity.

  9. Defense display market assessment

    Science.gov (United States)

    Desjardins, Daniel D.; Hopper, Darrel G.

    1998-09-01

    This paper addresses the number, function and size of principal military displays and establishes a basis to determine the opportunities for technology insertion in the immediate future and into the next millennium. Principal military displays are defined as those occupying appreciable crewstation real-estate and/or those without which the platform could not carry out its intended mission. DoD 'office' applications are excluded from this study. The military displays market is specified by such parameters as active area and footprint size, and other characteristics such as luminance, gray scale, resolution, angle, color, video capability, and night vision imaging system (NVIS) compatibility. Funded, future acquisitions, planned and predicted crewstation modification kits, and form-fit upgrades are taken into account. This paper provides an overview of the DoD niche market, allowing both government and industry a necessary reference by which to meet DoD requirements for military displays in a timely and cost-effective manner. The aggregate DoD market for direct-view and large-area military displays is presently estimated to be in excess of 242,000. Miniature displays are those which must be magnified to be viewed, involve a significantly different manufacturing paradigm and are used in helmet mounted displays and thermal weapon sight applications. Some 114,000 miniature displays are presently included within Service weapon system acquisition plans. For vendor production planning purposes it is noted that foreign military sales could substantially increase these quantities. The vanishing vendor syndrome (VVS) for older display technologies continues to be a growing, pervasive problem throughout DoD, which consequently must leverage the more modern display technologies being developed for civil- commercial markets.

  10. Laser Based 3D Volumetric Display System

    Science.gov (United States)

    1993-03-01

    Literature, Costa Mesa, CA July 1983. 3. "A Real Time Autostereoscopic Multiplanar 3D Display System", Rodney Don Williams, Felix Garcia, Jr., Texas...8217 .- NUMBERS LASER BASED 3D VOLUMETRIC DISPLAY SYSTEM PR: CD13 0. AUTHOR(S) PE: N/AWIU: DN303151 P. Soltan, J. Trias, W. Robinson, W. Dahlke 7...laser generated 3D volumetric images on a rotating double helix, (where the 3D displays are computer controlled for group viewing with the naked eye

  11. Panoramic projection avionics displays

    Science.gov (United States)

    Kalmanash, Michael H.

    2003-09-01

    Avionics projection displays are entering production in advanced tactical aircraft. Early adopters of this technology in the avionics community used projection displays to replace or upgrade earlier units incorporating direct-view CRT or AMLCD devices. Typical motivation for these upgrades were the alleviation of performance, cost and display device availability concerns. In these systems, the upgraded (projection) displays were one-for-one form / fit replacements for the earlier units. As projection technology has matured, this situation has begun to evolve. The Lockheed-Martin F-35 is the first program in which the cockpit has been specifically designed to take advantage of one of the more unique capabilities of rear projection display technology, namely the ability to replace multiple small screens with a single large conformal viewing surface in the form of a panoramic display. Other programs are expected to follow, since the panoramic formats enable increased mission effectiveness, reduced cost and greater information transfer to the pilot. Some of the advantages and technical challenges associated with panoramic projection displays for avionics applications are described below.

  12. Renormalization-group study of a superconducting phase transition: Asymptotic behavior of higher expansion orders and results of three-loop calculations

    Science.gov (United States)

    Kalagov, G. A.; Kompaniets, M. V.; Nalimov, M. Yu.

    2014-11-01

    We use quantum-field renormalization group methods to study the phase transition in an equilibrium system of nonrelativistic Fermi particles with the "density-density" interaction in the formalism of temperature Green's functions. We especially attend to the case of particles with spins greater than 1/2 or fermionic fields with additional indices for some reason. In the vicinity of the phase transition point, we reduce this model to a ϕ 4 -type theory with a matrix complex skew-symmetric field. We define a family of instantons of this model and investigate the asymptotic behavior of quantum field expansions in this model. We calculate the β-functions of the renormalization group equation through the third order in the ( 4 ∈)-scheme. In the physical space dimensions D = 2, 3, we resum solutions of the renormalization group equation on trajectories of invariant charges. Our results confirm the previously proposed suggestion that in the system under consideration, there is a first-order phase transition into a superconducting state that occurs at a higher temperature than the classical theory predicts.

  13. An Evaluation of Performance Characteristics of Primary Display Devices.

    Science.gov (United States)

    Ekpo, Ernest U; McEntee, Mark F

    2016-04-01

    The aim of this study was to complete a full evaluation of the new EIZO RX850 liquid crystal display and compare it to two currently used medical displays in Australia (EIZO GS510 and Barco MDCG 5121). The American Association of Physicists in Medicine (AAPM) Task Group 18 Quality Control test pattern was used to assess the performance of three high-resolution primary medical displays: EIZO RX850, EIZO GS510, and Barco MDCG 5121. A Konica Minolta spectroradiometer (CS-2000) was used to assess luminance response, non-uniformity, veiling glare, and color uniformity. Qualitative evaluation of noise was also performed. Seven breast lesions were displayed on each monitor and photographed with a calibrated 5.5-MP Olympus E-1 digital SLR camera. ImageJ software was used to sample pixel information from each lesion and surrounding background to calculate their conspicuity index on each of the displays. All monitor fulfilled all AAPM acceptance criteria. The performance characteristics for EIZO RX850, Barco MDCG 5121, and EIZO GS510 respectively were as follows: maximum luminance (490, 500.5, and 413 cd/m(2)), minimum luminance (0.724, 1.170, and 0.92 cd/m(2)), contrast ratio (675:1, 428:1, 449:1), just-noticeable difference index (635, 622, 609), non-uniformity (20, 5.92, and 8.5 %), veiling glare (GR = 2465.6, 720.4, 1249.8), and color uniformity (Δu'v' = +0.003, +0.002, +0.002). All monitors demonstrated low noise levels. The conspicuity index (χ) of the lesions was slightly higher in the EIZO RX850 display. All medical displays fulfilled AAPM performance criteria, and performance characteristics of EIZO RX850 are equal to or better than those of the Barco MDCG 5121 and EIZO GS510 displays.

  14. Military display market segment: wearable and portable

    Science.gov (United States)

    Desjardins, Daniel D.; Hopper, Darrel G.

    2003-09-01

    The military display market (MDM) is analyzed in terms of one of its segments, wearable and portable displays. Wearable and portable displays are those embedded in gear worn or carried by warfighters. Categories include hand-mobile (direct-view and monocular/binocular), palm-held, head/helmet-mounted, body-strapped, knee-attached, lap-born, neck-lanyard, and pocket/backpack-stowed. Some 62 fielded and developmental display sizes are identified in this wearable/portable MDM segment. Parameters requiring special consideration, such as weight, luminance ranges, light emission, viewing angles, and chromaticity coordinates, are summarized and compared. Ruggedized commercial versus commercial off-the-shelf designs are contrasted; and a number of custom displays are also found in this MDM category. Display sizes having aggregate quantities of 5,000 units or greater or having 2 or more program applications are identified. Wearable and portable displays are also analyzed by technology (LCD, LED, CRT, OLED and plasma). The technical specifications and program history of several high-profile military programs are discussed to provide a systems context for some representative displays and their function. As of August 2002 our defense-wide military display market study has documented 438,882 total display units distributed across 1,163 display sizes and 438 weapon systems. Wearable and portable displays account for 202,593 displays (46% of total DoD) yet comprise just 62 sizes (5% of total DoD) in 120 weapons systems (27% of total DoD). Some 66% of these wearable and portable applications involve low information content displays comprising just a few characters in one color; however, there is an accelerating trend towards higher information content units capable of showing changeable graphics, color and video.

  15. Small - Display Cartography

    DEFF Research Database (Denmark)

    Nissen, Flemming; Hvas, Anders; Münster-Swendsen, Jørgen

    This report comprises the work carried out in the work-package of small display cartography. The work-package has aimed at creating a general framework for the small-display cartography. A solid framework facilitates an increased use of spatial data in mobile devices - thus enabling, together...... with the rapidly evolving positioning techniques, a new category of position-dependent, map-based services to be introduced. The report consists of the following parts: Part I: Categorization of handheld devices, Part II: Cartographic design for small-display devices, Part III: Study on the GiMoDig Client ? Portal...... Service Communication and finally, Part IV: Concluding remarks and topics for further research on small-display cartography. Part II includes a separate Appendix D consisting of a cartographic design specification. Part III includes a separate Appendix C consisting of a schema specification, a separate...

  16. Flexible displays, rigid designs?

    DEFF Research Database (Denmark)

    Hornbæk, Kasper

    2015-01-01

    Rapid technological progress has enabled a wide range of flexible displays for computing devices, but the user experience--which we're only beginning to understand--will be the key driver for successful designs....

  17. Liquid Crystal Airborne Display

    Science.gov (United States)

    1977-08-01

    81/2X 11- 10 -9 .8 display using a large advertising alphanimeric ( TCI ) has been added to the front of the optical box used in the F-4 aircraft for HUD...properties over a wide range of tempera - tures, including normal room temperature. What are Liquid Crystals? Liquid crystals have been classified in three...natic fanctions and to present data needed for the semi- automatic and manual control of system functions. Existing aircraft using CRT display

  18. Military display performance parameters

    Science.gov (United States)

    Desjardins, Daniel D.; Meyer, Frederick

    2012-06-01

    The military display market is analyzed in terms of four of its segments: avionics, vetronics, dismounted soldier, and command and control. Requirements are summarized for a number of technology-driving parameters, to include luminance, night vision imaging system compatibility, gray levels, resolution, dimming range, viewing angle, video capability, altitude, temperature, shock and vibration, etc., for direct-view and virtual-view displays in cockpits and crew stations. Technical specifications are discussed for selected programs.

  19. Raster graphics display library

    Science.gov (United States)

    Grimsrud, Anders; Stephenson, Michael B.

    1987-01-01

    The Raster Graphics Display Library (RGDL) is a high level subroutine package that give the advanced raster graphics display capabilities needed. The RGDL uses FORTRAN source code routines to build subroutines modular enough to use as stand-alone routines in a black box type of environment. Six examples are presented which will teach the use of RGDL in the fastest, most complete way possible. Routines within the display library that are used to produce raster graphics are presented in alphabetical order, each on a separate page. Each user-callable routine is described by function and calling parameters. All common blocks that are used in the display library are listed and the use of each variable within each common block is discussed. A reference on the include files that are necessary to compile the display library is contained. Each include file and its purpose are listed. The link map for MOVIE.BYU version 6, a general purpose computer graphics display system that uses RGDL software, is also contained.

  20. The ultra-slow NAT2*6A haplotype is associated with reduced higher cognitive functions in an elderly study group.

    Science.gov (United States)

    Selinski, Silvia; Getzmann, Stephan; Gajewski, Patrick D; Blaszkewicz, Meinolf; Hengstler, Jan G; Falkenstein, Michael; Golka, Klaus

    2015-12-01

    N-Acetyltransferase 2 (NAT2) genotype is associated with age-related declines in basic sensory hearing functions. However, the possible modulatory role of NAT2 for higher cognitive functions has not yet been studied. We tested auditory goal-directed behavior and attentional control in 120 NAT2 genotyped subjects (63-88 years), using an auditory distraction paradigm in which participants responded to the duration of long and short tone stimuli. We studied involuntary shifts in attention to task-irrelevant deviant stimuli and applied event-related potentials (ERPs) to examine which cognitive subprocesses are affected by NAT2 status on a neurophysiological level. Relative to the standard stimuli, deviant stimuli decreased performance in the recently described ultra-slow acetylators (NAT2*6A and *7B): The increase in error-corrected reaction times (a combined measure of response speed and accuracy) in ultra-slow acetylators (254 ms increase) was more than twice as high as in the rapid acetylator reference group (111 ms increase; p < 0.01). The increase was still higher than in the other slow acetylators (149 ms increase, p < 0.05). In addition, clear differences were found in the ERP results: Ultra-slow acetylators showed deficits specifically in the automatic detection of changes in the acoustic environment as evidenced by reduced mismatch negativity (MMN, p < 0.005 compared to rapid acetylators). Refocussing of attention after a distracting event was also impaired in the ultra-slow acetylators as evidenced by a reduced re-orienting negativity (RON, p < 0.01 compared to rapid acetylators). In conclusion, the ultra-slow acetylation status was associated with reduced higher cognitive functions.

  1. The crucial role of higher order multiplicity in wide binary formation: a case study using the β-Pictoris moving group

    Science.gov (United States)

    Elliott, P.; Bayo, A.

    2016-07-01

    The `in situ' formation of very wide binaries is hard to explain as their physical separations are beyond the typical size of a collapsing cloud core (≈5000-10 000 au). Here we investigate the formation process of such systems. We compute population statistics such as the multiplicity fraction, companion-star fraction and physical separation distribution of companions in the β-Pictoris moving group. We compare previous multiplicity studies in younger and older regions and show that the dynamic evolution of a young population with a high degree of primordial multiplicity can lead to a processed separation distribution, similar to the field population. The evolution of outer components is attributed to the dynamical unfolding of higher order (triple) systems; a natural consequence of which is the formation of wide binaries. We find a strong preference for wide systems to contain three or more components (>1000 au: 11/14, 10 000 au: 6 / 7). We argue that the majority of wide binaries identified in young moving groups are primordial. Under the assumption that stellar populations, within our galaxy, have statistically similar primordial multiplicity, we can infer that the paucity of wide binaries in the field is the result of dynamical evolution.

  2. Couplerlib: a metadata-driven library for the integration of multiple models of higher and lower trophic level marine systems with inexact functional group matching

    Science.gov (United States)

    Beecham, Jonathan; Bruggeman, Jorn; Aldridge, John; Mackinson, Steven

    2016-03-01

    End-to-end modelling is a rapidly developing strategy for modelling in marine systems science and management. However, problems remain in the area of data matching and sub-model compatibility. A mechanism and novel interfacing system (Couplerlib) is presented whereby a physical-biogeochemical model (General Ocean Turbulence Model-European Regional Seas Ecosystem Model, GOTM-ERSEM) that predicts dynamics of the lower trophic level (LTL) organisms in marine ecosystems is coupled to a dynamic ecosystem model (Ecosim), which predicts food-web interactions among higher trophic level (HTL) organisms. Coupling is achieved by means of a bespoke interface, which handles the system incompatibilities between the models and a more generic Couplerlib library, which uses metadata descriptions in extensible mark-up language (XML) to marshal data between groups, paying attention to functional group mappings and compatibility of units between models. In addition, within Couplerlib, models can be coupled across networks by means of socket mechanisms. As a demonstration of this approach, a food-web model (Ecopath with Ecosim, EwE) and a physical-biogeochemical model (GOTM-ERSEM) representing the North Sea ecosystem were joined with Couplerlib. The output from GOTM-ERSEM varies between years, depending on oceanographic and meteorological conditions. Although inter-annual variability was clearly present, there was always the tendency for an annual cycle consisting of a peak of diatoms in spring, followed by (less nutritious) flagellates and dinoflagellates through the summer, resulting in an early summer peak in the mesozooplankton biomass. Pelagic productivity, predicted by the LTL model, was highly seasonal with little winter food for the higher trophic levels. The Ecosim model was originally based on the assumption of constant annual inputs of energy and, consequently, when coupled, pelagic species suffered population losses over the winter months. By contrast, benthic populations

  3. Dynamic plasmonic colour display

    Science.gov (United States)

    Duan, Xiaoyang; Kamin, Simon; Liu, Na

    2017-02-01

    Plasmonic colour printing based on engineered metasurfaces has revolutionized colour display science due to its unprecedented subwavelength resolution and high-density optical data storage. However, advanced plasmonic displays with novel functionalities including dynamic multicolour printing, animations, and highly secure encryption have remained in their infancy. Here we demonstrate a dynamic plasmonic colour display technique that enables all the aforementioned functionalities using catalytic magnesium metasurfaces. Controlled hydrogenation and dehydrogenation of the constituent magnesium nanoparticles, which serve as dynamic pixels, allow for plasmonic colour printing, tuning, erasing and restoration of colour. Different dynamic pixels feature distinct colour transformation kinetics, enabling plasmonic animations. Through smart material processing, information encoded on selected pixels, which are indiscernible to both optical and scanning electron microscopies, can only be read out using hydrogen as a decoding key, suggesting a new generation of information encryption and anti-counterfeiting applications.

  4. The Ultimate Display

    CERN Document Server

    Fluke, C J

    2016-01-01

    Astronomical images and datasets are increasingly high-resolution and multi-dimensional. The vast majority of astronomers perform all of their visualisation and analysis tasks on low-resolution, two-dimensional desktop monitors. If there were no technological barriers to designing the ultimate stereoscopic display for astronomy, what would it look like? What capabilities would we require of our compute hardware to drive it? And are existing technologies even close to providing a true 3D experience that is compatible with the depth resolution of human stereoscopic vision? We consider the CAVE2 (an 80 Megapixel, hybrid 2D and 3D virtual reality environment directly integrated with a 100 Tflop/s GPU-powered supercomputer) and the Oculus Rift (a low- cost, head-mounted display) as examples at opposite financial ends of the immersive display spectrum.

  5. Group-based social skills interventions for adolescents with higher-functioning autism spectrum disorder: a review and looking to the future

    Directory of Open Access Journals (Sweden)

    McMahon CM

    2013-01-01

    Full Text Available Camilla M McMahon,1 Matthew D Lerner,2,3 Noah Britton41Department of Curriculum and Instruction, Indiana University Bloomington, Bloomington, IN, USA; 2Department of Psychology, University of Virginia, Charlottesville, VA, USA; 3Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA; 4Behavorial Sciences Department, Bunker Hill Community College, Charleston, MA, USAAbstract: In this paper, we synthesize the current literature on group-based social skills interventions (GSSIs for adolescents (ages 10–20 years with higher-functioning autism spectrum disorder and identify key concepts that should be addressed in future research on GSSIs. We consider the research participants, the intervention, the assessment of the intervention, and the research methodology and results to be integral and interconnected components of the GSSI literature, and we review each of these components respectively. Participant characteristics (eg, age, IQ, sex and intervention characteristics (eg, targeted social skills, teaching strategies, duration and intensity vary considerably across GSSIs; future research should evaluate whether participant and intervention characteristics mediate/moderate intervention efficacy. Multiple assessments (eg, parent-report, child-report, social cognitive assessments are used to evaluate the efficacy of GSSIs; future research should be aware of the limitations of current measurement approaches and employ more accurate, sensitive, and comprehensive measurement approaches. Results of GSSIs are largely inconclusive, with few consistent findings across studies (eg, high parent and child satisfaction with the intervention; future research should employ more rigorous methodological standards for evaluating efficacy. A better understanding of these components in the current GSSI literature and a more sophisticated and rigorous analysis of these components in future research will lend clarity to key questions

  6. Refreshing Refreshable Braille Displays.

    Science.gov (United States)

    Russomanno, Alexander; O'Modhrain, Sile; Gillespie, R Brent; Rodger, Matthew W M

    2015-01-01

    The increased access to books afforded to blind people via e-publishing has given them long-sought independence for both recreational and educational reading. In most cases, blind readers access materials using speech output. For some content such as highly technical texts, music, and graphics, speech is not an appropriate access modality as it does not promote deep understanding. Therefore blind braille readers often prefer electronic braille displays. But, these are prohibitively expensive. The search is on, therefore, for a low-cost refreshable display that would go beyond current technologies and deliver graphical content as well as text. And many solutions have been proposed, some of which reduce costs by restricting the number of characters that can be displayed, even down to a single braille cell. In this paper, we demonstrate that restricting tactile cues during braille reading leads to poorer performance in a letter recognition task. In particular, we show that lack of sliding contact between the fingertip and the braille reading surface results in more errors and that the number of errors increases as a function of presentation speed. These findings suggest that single cell displays which do not incorporate sliding contact are likely to be less effective for braille reading.

  7. Virtual Auditory Displays

    Science.gov (United States)

    2000-01-01

    timbre , intensity, distance, room modeling, radio communication Virtual Environments Handbook Chapter 4 Virtual Auditory Displays Russell D... musical note “A” as a pure sinusoid, there will be 440 condensations and rarefactions per second. The distance between two adjacent condensations or...and complexity are pitch, loudness, and timbre respectively. This distinction between physical and perceptual measures of sound properties is an

  8. Increased plasma levels of the high mobility group box 1 protein (HMGB1) are associated with a higher score of gastrointestinal dysfunction in individuals with autism.

    Science.gov (United States)

    Babinská, K; Bucová, M; Ďurmanová, V; Lakatošová, S; Jánošíková, D; Bakoš, J; Hlavatá, A; Ostatníková, D

    2014-01-01

    Autism is a disorder of neural development characterized by impairments in communication, social interaction, restricted interests and repetitive behavior. The etiology of autism is poorly understood, the evidence indicates that inflammation may play a key role. In autism a high prevalence of gastrointestinal disturbances is reported, that are linked to a low-grade chronic inflammation of the intestinal mucosa. High mobility group box 1 protein (HMGB1) is an intranuclear protein that can be passively released from necrotic cells or actively secreted under inflammatory conditions as alarmin or late proinflammatory cytokine. The objective of this study was to measure plasma levels of HMGB1 in individuals with autism and to analyze their association with gastrointestinal symptoms. The study involved 31 subjects with low-functioning autistic disorder aged 2-22 years and 16 healthy controls. Plasma HMGB1 levels were significantly higher in individuals with autism than in controls (13.8+/-11.7 ng/ml vs. 7.90+/-4.0 ng/ml, pautism and its possible association with GI symptoms.

  9. Exploration on the Management of Special Groups of Students in Higher Vocational Colleges%高职院校特殊群体学生管理探究

    Institute of Scientific and Technical Information of China (English)

    王婕鹏

    2012-01-01

    With the enrolment expansion and the quickening reform of Chinese higher education and with the continuous progress of social reform, ideological and political education work takes on new characteristics and problems. With the strengthening of the philosophy"people-oriented" and" students first", it is of great signifi- cance to the security and stability of colleges to do a good job of ideological and political education of the spe- cial groups of students in vocational colleges, and to guide them effectively and practically.%随着高等教育招生规模的扩大以及高等教育改革进程的加快,伴随着社会改革的不断推进,高校思想政治教育工作呈现出新的特点和问题。随着“以人为本…‘以生为本”理念的不断深入,做好高职院校特殊群体学生的思政工作,在实事求是的基础上对特殊群体学生进行有效的引导,对于高校安全稳定工作有着重要的意义。

  10. Group-based social skills interventions for adolescents with higher-functioning autism spectrum disorder: a review and looking to the future.

    Science.gov (United States)

    McMahon, Camilla M; Lerner, Matthew D; Britton, Noah

    2013-01-22

    In this paper, we synthesize the current literature on group-based social skills interventions (GSSIs) for adolescents (ages 10-20 years) with higher-functioning autism spectrum disorder and identify key concepts that should be addressed in future research on GSSIs. We consider the research participants, the intervention, the assessment of the intervention, and the research methodology and results to be integral and interconnected components of the GSSI literature, and we review each of these components respectively. Participant characteristics (eg, age, IQ, sex) and intervention characteristics (eg, targeted social skills, teaching strategies, duration and intensity) vary considerably across GSSIs; future research should evaluate whether participant and intervention characteristics mediate/moderate intervention efficacy. Multiple assessments (eg, parent-report, child-report, social cognitive assessments) are used to evaluate the efficacy of GSSIs; future research should be aware of the limitations of current measurement approaches and employ more accurate, sensitive, and comprehensive measurement approaches. Results of GSSIs are largely inconclusive, with few consistent findings across studies (eg, high parent and child satisfaction with the intervention); future research should employ more rigorous methodological standards for evaluating efficacy. A better understanding of these components in the current GSSI literature and a more sophisticated and rigorous analysis of these components in future research will lend clarity to key questions regarding the efficacy of GSSIs for individuals with autism spectrum disorder.

  11. Virtual acoustic displays

    Science.gov (United States)

    Wenzel, Elizabeth M.

    1991-01-01

    A 3D auditory display can potentially enhance information transfer by combining directional and iconic information in a quite naturalistic representation of dynamic objects in the interface. Another aspect of auditory spatial clues is that, in conjunction with other modalities, it can act as a potentiator of information in the display. For example, visual and auditory cues together can reinforce the information content of the display and provide a greater sense of presence or realism in a manner not readily achievable by either modality alone. This phenomenon will be particularly useful in telepresence applications, such as advanced teleconferencing environments, shared electronic workspaces, and monitoring telerobotic activities in remote or hazardous situations. Thus, the combination of direct spatial cues with good principles of iconic design could provide an extremely powerful and information-rich display which is also quite easy to use. An alternative approach, recently developed at ARC, generates externalized, 3D sound cues over headphones in realtime using digital signal processing. Here, the synthesis technique involves the digital generation of stimuli using Head-Related Transfer Functions (HRTF's) measured in the two ear-canals of individual subjects. Other similar approaches include an analog system developed by Loomis, et. al., (1990) and digital systems which make use of transforms derived from normative mannikins and simulations of room acoustics. Such an interface also requires the careful psychophysical evaluation of listener's ability to accurately localize the virtual or synthetic sound sources. From an applied standpoint, measurement of each potential listener's HRTF's may not be possible in practice. For experienced listeners, localization performance was only slightly degraded compared to a subject's inherent ability. Alternatively, even inexperienced listeners may be able to adapt to a particular set of HRTF's as long as they provide adequate

  12. Interruption and Pausing of Public Display Games

    DEFF Research Database (Denmark)

    Feuchtner, Tiare; Walter, Robert; Müller, Jörg

    We present a quantitative and qualitative analysis of interruptions of interaction with a public display game, and explore the use of a manual pause mode in this scenario. In previous public display installations we observed users frequently interrupting their interaction. To explore ways...... of supporting such behavior, we implemented a gesture controlled multiuser game with four pausing techniques. We evaluated them in a field study analyzing 704 users and found that our pausing techniques were eagerly explored, but rarely used with the intention to pause the game. Our study shows...... that interactions with public displays are considerably intermissive, and that users mostly interrupt interaction to socialize and mainly approach public displays in groups. We conclude that, as a typical characteristic of public display interaction, interruptions deserve consideration. However, manual pause modes...

  13. X-1 on display

    Science.gov (United States)

    1949-01-01

    A Bell Aircraft Corporation X-1 series aircraft on display at an Open House at NACA Muroc Flight Test Unit or High-Speed Flight Research Station hangar on South Base of Edwards Air Force Base, California. (The precise date of the photo is uncertain, but it is probably before 1948.) The instrumentation that was carried aboard the aircraft to gather data is on display. The aircraft data was recorded on oscillograph film that was read, calibrated, and converted into meaningful parameters for the engineers to evaluate from each research flight. In the background of the photo are several early U.S. jets. These include several Lockheed P-80 Shooting Stars, which were used as chase planes on X-1 flights; two Bell P-59 Airacomets, the first U.S. jet pursuit aircraft (fighter in later parlance); and a prototype Republic XP-84 Thunderjet. There were five versions of the Bell X-1 rocket-powered research aircraft that flew at the NACA High-Speed Flight Research Station, Edwards, California. The bullet-shaped X-1 aircraft were built by Bell Aircraft Corporation, Buffalo, N.Y. for the U.S. Army Air Forces (after 1947, U.S. Air Force) and the National Advisory Committee for Aeronautics (NACA). The X-1 Program was originally designated the XS-1 for eXperimental Sonic. The X-1's mission was to investigate the transonic speed range (speeds from just below to just above the speed of sound) and, if possible, to break the 'sound barrier.' Three different X-1s were built and designated: X-1-1, X-1-2 (later modified to become the X-1E), and X-1-3. The basic X-1 aircraft were flown by a large number of different pilots from 1946 to 1951. The X-1 Program not only proved that humans could go beyond the speed of sound, it reinforced the understanding that technological barriers could be overcome. The X-1s pioneered many structural and aerodynamic advances including extremely thin, yet extremely strong wing sections; supersonic fuselage configurations; control system requirements; powerplant

  14. Discussion on higher vocational college website group construction and management%浅谈高职院校网站群的建设和管理

    Institute of Scientific and Technical Information of China (English)

    倪喜琴

    2012-01-01

    随着学校网站数量的不断增加,如何有效地组织和管理这些网站及其海量信息,已成为众多学校领导及信息主管所关心的问题,分析了当前高职院校网站的现状,提出了用Webplus技术建设与管理网站群的思路,它不仅方便了管理员的统一管理,而且提高了系统的安全性、稳定性、可扩展性、易使用性、美观性,同时也降低了网站的总体建设成本,是提升网站管理与绩效的有效手段.%With the increasing number of school website, how to effectively organize and manage the site as well as the mass of information, has become a large number of school leadership and information director concerns, this article analyzes the current higher vocational institute website present situation, put forward to use webplus technology to construction and management of website group train of thought, it is not only convenient for the administrator of the unified management, and to improve the system security, stability, scalability, usability, aesthetics, but also reduces the overall cost of website construction, is to promote the site management and performance of the effective means.

  15. Image Descriptors for Displays

    Science.gov (United States)

    1975-03-01

    hypothetical televison display. The viewing distance is 4 picture heights, and the bandwidth limitation has been set by the U.S. Monochrome Standards...significantly influence the power spectrum over most of the video frequency range. A large dc component and a small random component provide another scene... influences . It was Illuminated with natural light to a brightness of over 300 ft-L. The high brightness levels were chosen so as to nearly reproduce the

  16. Refrigerated display cabinets; Butikskyla

    Energy Technology Data Exchange (ETDEWEB)

    Fahlen, Per

    2000-07-01

    This report summarizes experience from SP research and assignments regarding refrigerated transport and storage of food, mainly in the retail sector. It presents the fundamentals of heat and mass transfer in display cabinets with special focus on indirect systems and secondary refrigerants. Moreover, the report includes a brief account of basic food hygiene and the related regulations. The material has been compiled for educational purposes in the Masters program at Chalmers Technical University.

  17. Book Display as Adult Service

    Directory of Open Access Journals (Sweden)

    Matthew S. Moore

    1997-03-01

    Full Text Available 無Book display as an adult service is defined as choosing and positioning adult books from the collection to increase their circulation. The author contrasts bookstore arrangement for sales versus library arrangement for access. The paper considers the library-as-a-whole as a display, examines the right size for an in-library display, and discusses mass displays, end-caps, on-shelf displays, and the Tiffany approach. The author proposes that an effective display depends on an imaginative, unifying theme, and that book displays are part of the joy of libraries.

  18. Handbook of Visual Display Technology

    CERN Document Server

    Cranton, Wayne; Fihn, Mark

    2012-01-01

    The Handbook of Visual Display Technology is a unique work offering a comprehensive description of the science, technology, economic and human interface factors associated with the displays industry. An invaluable compilation of information, the Handbook will serve as a single reference source with expert contributions from over 150 international display professionals and academic researchers. All classes of display device are covered including LCDs, reflective displays, flexible solutions and emissive devices such as OLEDs and plasma displays, with discussion of established principles, emergent technologies, and particular areas of application. The wide-ranging content also encompasses the fundamental science of light and vision, image manipulation, core materials and processing techniques, display driving and metrology.

  19. Latest development of display technologies

    Science.gov (United States)

    Gao, Hong-Yue; Yao, Qiu-Xiang; Liu, Pan; Zheng, Zhi-Qiang; Liu, Ji-Cheng; Zheng, Hua-Dong; Zeng, Chao; Yu, Ying-Jie; Sun, Tao; Zeng, Zhen-Xiang

    2016-09-01

    In this review we will focus on recent progress in the field of two-dimensional (2D) and three-dimensional (3D) display technologies. We present the current display materials and their applications, including organic light-emitting diodes (OLEDs), flexible OLEDs quantum dot light emitting diodes (QLEDs), active-matrix organic light emitting diodes (AMOLEDs), electronic paper (E-paper), curved displays, stereoscopic 3D displays, volumetric 3D displays, light field 3D displays, and holographic 3D displays. Conventional 2D display devices, such as liquid crystal devices (LCDs) often result in ambiguity in high-dimensional data images because of lacking true depth information. This review thus provides a detailed description of 3D display technologies.

  20. Military market for flat panel displays

    Science.gov (United States)

    Desjardins, Daniel D.; Hopper, Darrel G.

    1997-07-01

    This paper addresses the number, function and size of primary military displays and establishes a basis to determine the opportunities for technology insertion in the immediate future and into the next millennium. The military displays market is specified by such parameters as active area and footprint size, and other characteristics such as luminance, gray scale, resolution, color capability and night vision imaging system capability. A select grouping of funded, future acquisitions, planned and predicted cockpit kits, and form-fit-function upgrades are taken into account. It is the intent of this paper to provide an overview of the DoD niche market, allowing both government and industry a timely reference to insure meeting DoD requirements for flat-panel displays on schedule and in a cost-effective manner. The aggregate DoD market for direct view displays is presently estimated to be in excess of 157,000. Helmet/head mounted displays will add substantially to this total. The vanishing vendor syndrome for older display technologies is becoming a growing, pervasive problem throughout DoD, which consequently just leverage the more modern display technologies being developed for civil-commercial markets.

  1. Are tiled display walls needed for astronomy?

    CERN Document Server

    Meade, Bernard F; Manos, Steven; Sinnott, Richard O

    2014-01-01

    Clustering commodity displays into a Tiled Display Wall (TDW) provides a cost-effective way to create an extremely high resolution display, capable of approaching the image sizes now gen- erated by modern astronomical instruments. Astronomers face the challenge of inspecting single large images, many similar images simultaneously, and heterogeneous but related content. Many research institutions have constructed TDWs on the basis that they will improve the scientific outcomes of astronomical imagery. We test this concept by presenting sample images to astronomers and non- astronomers using a standard desktop display (SDD) and a TDW. These samples include standard English words, wide field galaxy surveys and nebulae mosaics from the Hubble telescope. These experiments show that TDWs provide a better environment for searching for small targets in large images than SDDs. It also shows that astronomers tend to be better at searching images for targets than non-astronomers, both groups are generally better when em...

  2. The Predictive Value of Job Demands and Resources on the Meaning of Work and Organisational Commitment across Different Age Groups in the Higher Education Sector

    Science.gov (United States)

    Anthun, Kirsti Sarheim; Innstrand, Siw Tone

    2016-01-01

    This study examines the predictive value of job demands and resources on the meaning of work and organisational commitment across three age groups; young workers (50 years). Data were collected from a survey conducted among university employees (N = 3,066).…

  3. Higher prevalence of OCA1 in an ethnic group of eastern India is due to a founder mutation in the tyrosinase gene.

    NARCIS (Netherlands)

    Chaki, M.; Mukhopadhyay, A.; Chatterjee, S.; Das, M.; Samanta, S.; Ray, K.

    2005-01-01

    PURPOSE: Oculocutaneous albinism (OCA) is a group of autosomal recessive disorders characterized by deficient synthesis of melanin pigment and associated with common developmental abnormalities of the eye. It is one of the major causes of childhood blindness in India. The disease is common among an

  4. Higher World Health Organization grades of follicular lymphoma correlate with better outcome in two Nordic Lymphoma Group trials of rituximab without chemotherapy

    DEFF Research Database (Denmark)

    Wahlin, Björn Engelbrekt; Sundström, Christer; Sander, Birgitta

    2014-01-01

    Abstract A common treatment for follicular lymphoma is rituximab monotherapy. To identify patients for whom this regimen is adequate as first-line therapy, we applied the World Health Organization (WHO) classification for grading follicular lymphoma in a prospective central pathology review...... of the biopsies of previously untreated patients in two randomized trials of rituximab without chemotherapy. In the first trial (n₁ = 53), higher WHO grades correlated with longer time to next treatment, independently of clinical prognostic factors (p = 0.030); the finding was replicated in the second trial (n₂...... = 221; p = 0.019). Higher grades were associated with better treatment responses (p = 0.018). Furthermore, also grades externally confirmed by independent local pathologists correlated with time to next treatment (p = 0.048). Flow cytometry in a separate patient series showed that the intensity of CD20...

  5. LHCb Event display

    CERN Document Server

    Trisovic, Ana

    2014-01-01

    The LHCb Event Display was made for educational purposes at the European Organization for Nuclear Research, CERN in Geneva, Switzerland. The project was implemented as a stand-alone application using C++ and ROOT, a framework developed by CERN for data analysis. This paper outlines the development and architecture of the application in detail, as well as the motivation for the development and the goals of the exercise. The application focuses on the visualization of events recorded by the LHCb detector, where an event represents a set of charged particle tracks in one proton-proton collision. Every particle track is coloured by its type and can be selected to see its essential information such as mass and momentum. The application allows students to save this information and calculate the invariant mass for any pair of particles. Furthermore, the students can use additional calculating tools in the application and build up a histogram of these invariant masses. The goal for the students is to find a $D^0$ par...

  6. Colorimetry for CRT displays.

    Science.gov (United States)

    Golz, Jürgen; MacLeod, Donald I A

    2003-05-01

    We analyze the sources of error in specifying color in CRT displays. These include errors inherent in the use of the color matching functions of the CIE 1931 standard observer when only colorimetric, not radiometric, calibrations are available. We provide transformation coefficients that prove to correct the deficiencies of this observer very well. We consider four different candidate sets of cone sensitivities. Some of these differ substantially; variation among candidate cone sensitivities exceeds the variation among phosphors. Finally, the effects of the recognized forms of observer variation on the visual responses (cone excitations or cone contrasts) generated by CRT stimuli are investigated and quantitatively specified. Cone pigment polymorphism gives rise to variation of a few per cent in relative excitation by the different phosphors--a variation larger than the errors ensuing from the adoption of the CIE standard observer, though smaller than the differences between some candidate cone sensitivities. Macular pigmentation has a larger influence, affecting mainly responses to the blue phosphor. The estimated combined effect of all sources of observer variation is comparable in magnitude with the largest differences between competing cone sensitivity estimates but is not enough to disrupt very seriously the relation between the L and M cone weights and the isoluminance settings of individual observers. It is also comparable with typical instrumental colorimetric errors, but we discuss these only briefly.

  7. Oil defect detection of electrowetting display

    Science.gov (United States)

    Chiang, Hou-Chi; Tsai, Yu-Hsiang; Yan, Yung-Jhe; Huang, Ting-Wei; Mang, Ou-Yang

    2015-08-01

    In recent years, transparent display is an emerging topic in display technologies. Apply in many fields just like mobile device, shopping or advertising window, and etc. Electrowetting Display (EWD) is one kind of potential transparent display technology advantages of high transmittance, fast response time, high contrast and rich color with pigment based oil system. In mass production process of Electrowetting Display, oil defects should be found by Automated Optical Inspection (AOI) detection system. It is useful in determination of panel defects for quality control. According to the research of our group, we proposed a mechanism of AOI detection system detecting the different kinds of oil defects. This mechanism can detect different kinds of oil defect caused by oil overflow or material deteriorated after oil coating or driving. We had experiment our mechanism with a 6-inch Electrowetting Display panel from ITRI, using an Epson V750 scanner with 1200 dpi resolution. Two AOI algorithms were developed, which were high speed method and high precision method. In high precision method, oil jumping or non-recovered can be detected successfully. This mechanism of AOI detection system can be used to evaluate the oil uniformity in EWD panel process. In the future, our AOI detection system can be used in quality control of panel manufacturing for mass production.

  8. Data Display in Qualitative Research

    Directory of Open Access Journals (Sweden)

    Susana Verdinelli PsyD

    2013-02-01

    Full Text Available Visual displays help in the presentation of inferences and conclusions and represent ways of organizing, summarizing, simplifying, or transforming data. Data displays such as matrices and networks are often utilized to enhance data analysis and are more commonly seen in quantitative than in qualitative studies. This study reviewed the data displays used by three prestigious qualitative research journals within a period of three years. The findings include the types of displays used in these qualitative journals, the frequency of use, and the purposes for using visual displays as opposed to presenting data in text.

  9. Unique interactive projection display screen

    Energy Technology Data Exchange (ETDEWEB)

    Veligdan, J.T.

    1997-11-01

    Projection systems continue to be the best method to produce large (1 meter and larger) displays. However, in order to produce a large display, considerable volume is typically required. The Polyplanar Optic Display (POD) is a novel type of projection display screen, which for the first time, makes it possible to produce a large projection system that is self-contained and only inches thick. In addition, this display screen is matte black in appearance allowing it to be used in high ambient light conditions. This screen is also interactive and can be remotely controlled via an infrared optical pointer resulting in mouse-like control of the display. Furthermore, this display need not be flat since it can be made curved to wrap around a viewer as well as being flexible.

  10. Exploration on Higher Vocational Special Groups of Students' Education Management Work%高职院校特殊群体学生教育管理工作的探索

    Institute of Scientific and Technical Information of China (English)

    高婷

    2014-01-01

    随着高职院校的扩招,大学特殊群体在学生中的比例越来越高,并且还出现了一些新的问题,严重影响了学校的正常管理。文章通过对高职院校中的特殊群体存在的问题进行分析,提出对这些特殊群体进行管理教育的措施。%With enrollment in higher vocational colleges, universities special groups in the proportion of students getting higher and higher, and also there are some new problems, seriously affected the normal management of the school. Through vocational colleges in special groups to analyze the problems, propose measures for these special groups to man-age education.

  11. Patients with unexplained physical symptoms have poorer quality of life and higher costs than other patient groups: a cross-sectional study on burden

    OpenAIRE

    Zonneveld, Lyonne; Sprangers, Mirjam; Kooiman, Cornelis; Spijker, Adriaan; Busschbach, Jan

    2013-01-01

    textabstractBackground: To determine whether healthcare resources are allocated fairly, it is helpful to have information on the quality of life (QoL) of patients with Unexplained Physical Symptoms (UPS) and on the costs associated with them, and on how these relate to corresponding data in other patient groups. As studies to date have been limited to specific patient populations with UPS, the objective of this study was to assess QoL and costs in a general sample of patients with UPS using g...

  12. Determining of a role of the teacher of physical training in making up of consciousness of students of special medical groups of higher educational establishments.

    Directory of Open Access Journals (Sweden)

    Korjagin V.M.

    2010-08-01

    Full Text Available The state of health of students is construed. Students of 1 rate participated in experiment. The functional state of health of students is defined. Effect of the teacher on the relation of students of special medical groups to state of the health is defined. Possibilities of improving of health with the help of exercises on physical training are exhibited. Main routes of methodological correction of operation of the teacher with students are defined. The primal problem of the teacher is a making up at students of the realized relation of necessity of improving and conservation of health, education of crop of a healthy way of life.

  13. Language competency, group development and sociometric status of foreign students in Russian higher eduction institutions (a case study of Chinese students

    Directory of Open Access Journals (Sweden)

    Chibisova M.Yu.

    2017-03-01

    Full Text Available The article presents the results of an empirical study of Socio-psychological characteristics of group of Chinese students who are studying at Russian universities. 132 Chinese students aged between 18 to 26 years from Foundation course were involved in the study. Using investigational methods we found a correlation between language competence and sociometric and referentometric status of Chinese students throughout the academic year. It is expected that the acquired results are due to three factors: socio-psychological, where interpersonal relationships depend on the students' achievements; cultural-specific factors, where tenacity and diligence in work are valuable, and processes of socio-cultural adaptation.

  14. Augmenting digital displays with computation

    Science.gov (United States)

    Liu, Jing

    As we inevitably step deeper and deeper into a world connected via the Internet, more and more information will be exchanged digitally. Displays are the interface between digital information and each individual. Naturally, one fundamental goal of displays is to reproduce information as realistically as possible since humans still care a lot about what happens in the real world. Human eyes are the receiving end of such information exchange; therefore it is impossible to study displays without studying the human visual system. In fact, the design of displays is rather closely coupled with what human eyes are capable of perceiving. For example, we are less interested in building displays that emit light in the invisible spectrum. This dissertation explores how we can augment displays with computation, which takes both display hardware and the human visual system into consideration. Four novel projects on display technologies are included in this dissertation: First, we propose a software-based approach to driving multiview autostereoscopic displays. Our display algorithm can dynamically assign views to hardware display zones based on multiple observers' current head positions, substantially reducing crosstalk and stereo inversion. Second, we present a dense projector array that creates a seamless 3D viewing experience for multiple viewers. We smoothly interpolate the set of viewer heights and distances on a per-vertex basis across the arrays field of view, reducing image distortion, crosstalk, and artifacts from tracking errors. Third, we propose a method for high dynamic range display calibration that takes into account the variation of the chrominance error over luminance. We propose a data structure for enabling efficient representation and querying of the calibration function, which also allows user-guided balancing between memory consumption and the amount of computation. Fourth, we present user studies that demonstrate that the ˜ 60 Hz critical flicker fusion

  15. Writing next-generation display photomasks

    Science.gov (United States)

    Sandstrom, Tor; Wahlsten, Mikael; Park, Youngjin

    2016-10-01

    Recent years have seen a fast technical development within the display area. Displays get ever higher pixel density and the pixels get smaller. Current displays have over 800 PPI and market forces will eventually drive for densities of 2000 PPI or higher. The transistor backplanes also get more complex. OLED displays require 4-7 transistors per pixel instead of the typical 1-2 transistors used for LCDs, and they are significantly more sensitive to errors. New large-area maskwriters have been developed for masks used in high volume production of screens for state-of-theart smartphones. Redesigned laser optics with higher NA and lower aberrations improve resolution and CD uniformity and reduce mura effects. The number of beams has been increased to maintain the throughput despite the higher writing resolution. OLED displays are highly sensitive to placement errors and registration in the writers has been improved. To verify the registration of produced masks a separate metrology system has been developed. The metrology system is self-calibrated to high accuracy. The calibration is repeatable across machines and sites using Z-correction. The repeatability of the coordinate system makes it possible to standardize the coordinate system across an entire supply chain or indeed across the entire industry. In-house metrology is a commercial necessity for high-end mask shop, but also the users of the masks, the panel makers, would benefit from having in-house metrology. It would act as the reference for their mask suppliers, give better predictive and post mortem diagnostic power for the panel process, and the metrology could be used to characterize and improve the entire production loop from data to panel.

  16. Liquid crystal displays with high brightness of visualization versus active displays

    Science.gov (United States)

    Olifierczuk, Marek; Zieliński, Jerzy

    2007-05-01

    Nowadays Liquid Crystal Displays (LCD) takes the very important place among different visualization devices. It's are used in many standard applications such as computer or video screens. In May 2006, 100" LCD TV monitor had been shown by LG. But beside of this main direction of display development, very interesting - because of insignificant electro-magnetic disturbances - is the possibility of it's applications in motorization and aviation. An example of it can be a glass cockpit of U2 , Boeing 777 or many different car dashboards. On this field beside LCD we have now many another display technologies, but interesting for us are 3 of them: FEDs (Field Emission Displays), OLEDs (Organic Light Emitting Diode), PLEDs (Polymer Light Emitting Diode). The leading position of LCD is a result of LCD unique advantages of flat form, weight, power consumption, and reliability, higher (than CRT) luminance, luminance uniformity, sunlight readability, wide dimming range, fault tolerance and a large active display area with a small border. The basis of starting our investigation was the comparison of passive LCD and the other technology, which can be theoretically used on motorization and aviation field. The following parameters are compared: contrast ratio, luminance level, temperature stability, life-time, operating temperature range, color performance, and depth, viewing cone, technology maturity, availability and cost. In our work an analysis of Liquid Crystal Displays used in specific applications is done. The possibilities of the applications such a display under high lighting level are presented. The presented results of this analysis are obtained from computer program worked by authors, which makes it possible to calculate the optical parameters of transmissive and reflective LCD working in quasi-real conditions. The base assumption of this program are shown. This program calculate the transmission and reflection coefficient of a display taking into account the

  17. A Displayer of Stellar Hydrodynamics Processes

    Science.gov (United States)

    Vigo, José Antonio Escartín; Senz, Domingo García

    The graphics display tool that we present here was originally developed to meet the needs of the Astronomy and Astrophysics group at the UPC (GAA). At present, it is used to display the plots obtained from hydrodynamic simulations using the SPH (smoothed particle hydrodynamics) method. It is, however, a generic program that can be used for other multidimensional hydrodynamic methods. The application combines the most widely used features of other programs (most of them commercial) such as GnuPlot, Surfer, Grapher, IDL, Voxler, etc.

  18. Laser illuminated flat panel display

    Energy Technology Data Exchange (ETDEWEB)

    Veligdan, J.T.

    1995-12-31

    A 10 inch laser illuminated flat panel Planar Optic Display (POD) screen has been constructed and tested. This POD screen technology is an entirely new concept in display technology. Although the initial display is flat and made of glass, this technology lends itself to applications where a plastic display might be wrapped around the viewer. The display screen is comprised of hundreds of planar optical waveguides where each glass waveguide represents a vertical line of resolution. A black cladding layer, having a lower index of refraction, is placed between each waveguide layer. Since the cladding makes the screen surface black, the contrast is high. The prototype display is 9 inches wide by 5 inches high and approximately I inch thick. A 3 milliwatt HeNe laser is used as the illumination source and a vector scanning technique is employed.

  19. Edaphic and arboricolous oribatid mites (Acari; Oribatida in tropical environments: changes in the distribution of higher level taxonomic groups in the communities of species

    Directory of Open Access Journals (Sweden)

    E. Franklin

    Full Text Available We analysed the community of oribatid mites in 25 environments of northern Brazil and one in a rain forest in Peru, encompassing fauna sampled on natural and artificial (nylon-mesh bags substrata, from primary and secondary forests, caatinga, savannahs, flooded forests, bark and epiphytes of trees, and polyculture. A hundred and forty six species are definitively identified from a total of 444 taxa. To determine changes in the community, we took as a basis of comparison the species dominance of Lower Oribatida vs. Oppioidea and Lower Oribatida vs. Poronota. Even considering the different periods in which the inventories were realized and the different sampling methodology compared, the partition of the species of Oribatid mite in larger groups shows tendencies indicating partition of species dominance among the environments studied, showing that they differed in their suitability as habitats for the Oribatid mite community, mainly in respect to the Lower Oribatida, Oppioidea and Poronota composition. These tendencies should be explored in more detail as more becomes known about the species composition in each environment.

  20. Combined morphological and molecular data unveils relationships of Pseudobranchiomma (Sabellidae, Annelida and reveals higher diversity of this intriguing group of fan worms in Australia, including potentially introduced species

    Directory of Open Access Journals (Sweden)

    Maria Capa

    2016-10-01

    Full Text Available Pseudobranchiomma (Sabellidae, Annelida is a small and heterogeneous group of fan worms found in shallow marine environments and is generally associated with hard substrates. The delineation and composition of this genus is problematic since it has been defined only by plesiomorphic characters that are widely distributed among other sabellids. In this study we have combined morphological and molecular (mitochondrial and nuclear DNA sequences data to evaluate species diversity in Australia and assess the phylogenetic relationships of these and other related sabellids. Unlike morphological data alone, molecular data and combined datasets suggest monophyly of Pseudobranchiomma. In this study, a new species of Pseudobranchiomma is described and three others are considered as potential unintentional introductions to Australian waters, one of them reported for the first time for the continent. Pseudobranchiomma pallida sp. n. bears 4–6 serrations along the radiolar flanges, lacks radiolar eyes and has uncini with three transverse rows of teeth over the main fang. In the new species the colour pattern as well is characteristic and species specific.

  1. High performance visual display for HENP detectors

    CERN Document Server

    McGuigan, M; Spiletic, J; Fine, V; Nevski, P

    2001-01-01

    A high end visual display for High Energy Nuclear Physics (HENP) detectors is necessary because of the sheer size and complexity of the detector. For BNL this display will be of special interest because of STAR and ATLAS. To load, rotate, query, and debug simulation code with a modern detector simply takes too long even on a powerful work station. To visualize the HENP detectors with maximal performance we have developed software with the following characteristics. We develop a visual display of HENP detectors on BNL multiprocessor visualization server at multiple level of detail. We work with general and generic detector framework consistent with ROOT, GAUDI etc, to avoid conflicting with the many graphic development groups associated with specific detectors like STAR and ATLAS. We develop advanced OpenGL features such as transparency and polarized stereoscopy. We enable collaborative viewing of detector and events by directly running the analysis in BNL stereoscopic theatre. We construct enhanced interactiv...

  2. Miniature information displays: primary applications

    Science.gov (United States)

    Alvelda, Phillip; Lewis, Nancy D.

    1998-04-01

    Positioned to replace current liquid crystal display technology in many applications, miniature information displays have evolved to provide several truly portable platforms for the world's growing personal computing and communication needs. The technology and functionality of handheld computer and communicator systems has finally surpassed many of the standards that were originally established for desktop systems. In these new consumer electronics, performance, display size, packaging, power consumption, and cost have always been limiting factors for fabricating genuinely portable devices. The rapidly growing miniature information display manufacturing industry is making it possible to bring a wide range of highly anticipated new products to new markets.

  3. Colorimetric evaluation of display performance

    Science.gov (United States)

    Kosmowski, Bogdan B.

    2001-08-01

    The development of information techniques, using new technologies, physical phenomena and coding schemes, enables new application areas to be benefited form the introduction of displays. The full utilization of the visual perception of a human operator, requires the color coding process to be implemented. The evolution of displays, from achromatic (B&W) and monochromatic, to multicolor and full-color, enhances the possibilities of information coding, creating however a need for the quantitative methods of display parameter assessment. Quantitative assessment of color displays, restricted to photometric measurements of their parameters, is an estimate leading to considerable errors. Therefore, the measurements of a display's color properties have to be based on spectral measurements of the display and its elements. The quantitative assessment of the display system parameters should be made using colorimetric systems like CIE1931, CIE1976 LAB or LUV. In the paper, the constraints on the measurement method selection for the color display evaluation are discussed and the relations between their qualitative assessment and the ergonomic conditions of their application are also presented. The paper presents the examples of using LUV colorimetric system and color difference (Delta) E in the optimization of color liquid crystal displays.

  4. Maintenance Procedure Display: Head Mounted Display (HMD) Evaluations

    Science.gov (United States)

    Whitmore, Milrian; Litaker, Harry L., Jr.; Solem, Jody A.; Holden, Kritina L.; Hoffman, Ronald R.

    2007-01-01

    A viewgraph presentation describing maintenance procedures for head mounted displays is shown. The topics include: 1) Study Goals; 2) Near Eye Displays (HMDs); 3) Design; 4) Phase I-Evaluation Methods; 5) Phase 1 Results; 6) Improved HMD Mounting; 7) Phase 2 -Evaluation Methods; 8) Phase 2 Preliminary Results; and 9) Next Steps.

  5. Digital Display Integration Project Project Online 2.0

    CERN Document Server

    Bardsley, J N

    1999-01-01

    The electronic display industry is changing in three important ways. First, the dominance of the cathode ray tube (CRT) is being challenged by the development of flat panel displays (FPDs). This will lead to the availability of displays of higher performance, albeit at greater cost. Secondly, the analog interfaces between displays that show data and the computers that generate the data are being replaced by digital connections. Finally, a high-resolution display is becoming the most expensive component in computer system for homes and small offices. It is therefore desirable that the useful lifetime of the display extend over several years and that the electronics allows the display to be used with many different image sources. Hopefully, the necessity of having three or four large CRTs in one office to accommodate different computer operating systems or communication protocols will soon disappear. Instead, we hope to see a set of flat panels that can be switched to show several independent images from multip...

  6. Tactile display with dielectric multilayer elastomer actuatorsq

    Science.gov (United States)

    Matysek, Marc; Lotz, Peter; Schlaak, Helmut F.

    2009-03-01

    Tactile perception is the human sensation of surface textures through the vibrations generated by stroking a finger over the surface. The skin responds to several distributed physical quantities. Perhaps the most important are high-frequency vibrations, pressure distributions (static shape) and thermal properties. The integration of tactile displays in man-machine interfaces promises a more intuitive handling. For this reason many tactile displays are developed using different technologies. We present several state-of-the-art tactile displays based on different types of dielectric elastomer actuators to clarify the advantages of our matrix display based on multilayer technology. Using this technology perpendicular and hexagonal arrays of actuator elements (tactile stimulators) can be integrated into a PDMS substrate. Element diameters down to 1 mm allow stimuli at the range of the human two-point-discrimination threshold. Driving the elements by column and row addressing enables various stimulation patterns with a reduced number of feeding lines. The transient analysis determines charging times of the capacitive actuators depending on actuator geometry and material parameters. This is very important to ensure an adequate dynamic characteristic of the actuators to stimulate the human skin by vibrations. The suitability of multilayer dielectric elastomer actuators for actuation in tactile displays has been determined. Beside the realization of a static tactile display - where multilayer DEA are integrated as drives for movable contact pins - we focus on the direct use of DEA as a vibrotactile display. Finally, we present the scenario and achieved results of a recognition threshold test. Even relative low voltages in the range of 800 V generate vibrations with 100% recognition ratio within the group of participants. Furthermore, the frequency dependent characteristic of the determined recognition threshold confirms with established literature.

  7. Flexible daylight memory displays EASL DMD: a new approach toward displays for cockpit and soldier systems

    Science.gov (United States)

    Holter, Borre; Kamfjord, Thor G.; Fossum, Richard; Fagerberg, Ragnar

    2000-08-01

    The Norwegian based company PolyDisplayR ASA, in collaboration with the Norwegian Army Material Command and SINTEF, has refined, developed and shown with color and black/white technology demonstrators an electrically addressed Smectic A reflective LCD technology featuring: (1) Good contrast, all-round viewing angle and readability under all light conditions (no wash-out in direct sunlight). (2) Infinite memory -- image remains without power -- very low power consumption, no or very low radiation ('silent display') and narrow band updating. (3) Clear, sharp and flicker-free images. (4) Large number of gray tones and colors possible. (5) Simple construction and production -- reduced cost, higher yield, more robust and environmentally friendly. (6) Possibility for lighter, more robust and flexible displays based on plastic substrates. The results and future implementation possibilities for cockpit and soldier-system displays are discussed.

  8. Updated defense display market assessment

    Science.gov (United States)

    Desjardins, Daniel D.; Hopper, Darrel G.

    1999-08-01

    This paper addresses the number, function and size of principal military displays and establishes a basis to determine the opportunities for technology insertion in the immediate future and into the next millennium. Principal military displays are defined as those occupying appreciable crewstation real-estate and/or those without which the platform could not carry out its intended mission. DoD 'office' applications are excluded from this study. The military displays market is specified by such parameters as active area and footprint size, and other characteristics such as luminance, gray scale, resolution, angle, color, video capability, and night vision imaging system compatibility. Funded, future acquisitions, planned and predicted crewstation modification kits, and form-fit upgrades are taken into account. This paper provides an overview of the DoD niche market, allowing both government and industry a necessary reference by which to meet DoD requirements for military displays in a timely and cost-effective manner. The aggregate DoD installed base for direct-view and large-area military displays is presently estimated to be in excess of 313,000. Miniature displays are those which must be magnified to be viewed, involve a significantly different manufacturing paradigm and are used in helmet mounted displays and thermal weapon sight applications. Some 114,000 miniature displays are presently included within future weapon system acquisition plans. For vendor production planning purposes it is noted that foreign military sales could substantially increase these quantities. The vanishing vendor syndrome (VVS) for older display technologies continues to be a growing, pervasive problem throughout DoD, which consequently must leverage the more modern, especially flat panel, display technologies being developed to replace older, especially cathode ray tube, technology for civil-commercial markets. Total DoD display needs (FPD, HMD) are some 427,000.

  9. CERN students display their work

    CERN Multimedia

    Anaïs Schaeffer

    2011-01-01

    The first poster session by students working on the LHC experiments, organised by the LPCC, was a great success. Showcasing the talents of over a hundred young physicists from all over the world, it was an opportunity for everyone at CERN to check out the wide range of research work being done by the new generation of physicists at CERN.   At 5.30 p.m. on Wednesday 23 March, the first poster session by CERN students took place in Restaurant No.1, where no fewer than 87 posters went on public display. The students were split into 8 groups according to their research field* and all were on hand to answer the questions of an inquisitive audience. TH Department's Michelangelo Mangano, who is head of the LHC Physics Centre at CERN (LPCC) and is responsible for the initiative, confirms that nothing was left to chance, even the choice of date: "We wanted to make the most of the general enthusiasm around the winter conferences and the meeting of the LHC Experiments Committee to present the stud...

  10. Citizenship displayed by disabled people

    Directory of Open Access Journals (Sweden)

    Eliana Prado Carlino

    2010-12-01

    Full Text Available By investigating the processes by which successful teachers become activate citizens and by listening to the diversity and richness of their life and formation stories, this work became possible. Its aim is to display some of the utterances of two Down Syndrome individuals and their active-citizenship activities. Their stories were told in the reports of two teachers when describing their personal and professional history, and were considered to be an integral part of it. Thus, some of the utterances and perceptions with which these two individuals elaborate their references, their worldview and their active-citizenship activity are evidenced in this paper. This article is based on the language conceptions of Vygotsky and Bakhtin who defend the idea that the group and the social mentality are ingrain in the individual. Hence, the history of one person reveals that of many others, since there is a deep link between the individual and the social in the formation of a subjective worldview. As a result, it can be easily seen that the utterances expressed by the participants in this research cannot be considered strictly individual because enunciation is social in nature. Despite the fact that the utterances are those of individuals, they manifest a collective reality. This demonstrates the real advantages and possibilities that deficient people get from their participation and intervention in society.

  11. SU-E-P-29: Testing Display Monitors for GSDF Compliance - a Practical Approach

    Energy Technology Data Exchange (ETDEWEB)

    Gauntt, D [UAB Medical Center, Birmingham, AL (United Kingdom)

    2015-06-15

    Purpose: To develop a simple technique for testing display monitors for compliance with the DICOM Grayscale Standard Display Function (GSDF), in accordance with the recommendations of AAPM Task Group 18. Methods: We have developed a spreadsheet that can be used to compare both the luminance response and contrast response of a display to the GSDF, using luminance measurements of the SMPTE test pattern. The contrast response compares the slope of the GSDF j-index as a function of pixel value to that of the GSDF function, and should lie within the range 0.85 to 1.15. Results: We present the results of measurements both of primary diagnostic displays and of ultrasound and acquisition workstations, all at a tertiary care hospital. The Barco displays in the radiographic reading rooms are GSDF compliant or nearly so, while those in the ultrasound reading rooms and at the acquisition workstations generally show significantly higher contrast at low luminance levels than they would if GSDF compliant, and lower contrast at high luminance levels. Conclusion: The spreadsheet that we developed allows a simple comparison of measured display contrast response to the GSDF. Although we used the SMPTE pattern, the same technique could be used with other grayscale patterns, such as TG18-QC and TG18-PQC.

  12. Flexible Bistable Cholesteric Reflective Displays

    Science.gov (United States)

    Yang, Deng-Ke

    2006-03-01

    Cholesteric liquid crystals (ChLCs) exhibit two stable states at zero field condition-the reflecting planar state and the nonreflecting focal conic state. ChLCs are an excellent candidate for inexpensive and rugged electronic books and papers. This paper will review the display cell structure,materials and drive schemes for flexible bistable cholesteric (Ch) reflective displays.

  13. Three-dimensional display technologies.

    Science.gov (United States)

    Geng, Jason

    2013-01-01

    The physical world around us is three-dimensional (3D), yet traditional display devices can show only two-dimensional (2D) flat images that lack depth (i.e., the third dimension) information. This fundamental restriction greatly limits our ability to perceive and to understand the complexity of real-world objects. Nearly 50% of the capability of the human brain is devoted to processing visual information [Human Anatomy & Physiology (Pearson, 2012)]. Flat images and 2D displays do not harness the brain's power effectively. With rapid advances in the electronics, optics, laser, and photonics fields, true 3D display technologies are making their way into the marketplace. 3D movies, 3D TV, 3D mobile devices, and 3D games have increasingly demanded true 3D display with no eyeglasses (autostereoscopic). Therefore, it would be very beneficial to readers of this journal to have a systematic review of state-of-the-art 3D display technologies.

  14. Flat panel display - Impurity doping technology for flat panel displays

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Toshiharu [Advanced Technology Planning, Sumitomo Eaton Nova Corporation, SBS Tower 9F, 10-1, Yoga 4-chome, Setagaya-ku, 158-0097 Tokyo (Japan)]. E-mail: suzuki_tsh@senova.co.jp

    2005-08-01

    Features of the flat panel displays (FPDs) such as liquid crystal display (LCD) and organic light emitting diode (OLED) display, etc. using low temperature poly-Si (LTPS) thin film transistors (TFTs) are briefly reviewed comparing with other FPDs. The requirements for fabricating TFTs used for high performance FPDs and system on glass (SoG) are addressed. This paper focuses on the impurity doping technology, which is one of the key technologies together with crystallization by laser annealing, formation of high quality gate insulator and gate-insulator/poly-Si interface. The issues to be solved in impurity doping technology for state of the art and future TFTs are clarified.

  15. Exploration and Practice on the Construction of Scientific Research Groups in Innovation-oriented Higher Voca-tional Colleges%创新型高职院校科研队伍建设的探索与实践

    Institute of Scientific and Technical Information of China (English)

    陈圆圆

    2015-01-01

    This paper elaborates the important significance of sci-entific research group construction for the development of higher vocational colleges, and combined with the practical situation of scientific research in higher vocational colleges, explores the construction of innovation-oriented talents and innovation-ori-ented scientific research groups, and details the specific counter-measures for innovation-oriented scientific research group con-struction in higher vocational colleges, aiming to provide a sup-port for scientific research construction of higher vocational col-leges.%本文阐述了高职院校科研队伍建设对高职院校发展的重要意义,结合高职院校科研活动的具体实际对创新型人才、创新型高职科研队伍的建设进行了探索,并围绕高职院校创新型科研队伍建设的具体实施策略进行了详细的分析,为推动高职院校科研建设提供支持。

  16. Research on the Construction of the Curriculum System of the Specialty Group in Higher Vocational Colleges%高职院校专业群课程体系建设研究

    Institute of Scientific and Technical Information of China (English)

    谭慧

    2016-01-01

    Curriculum system construction of specialty group in higher vocational colleges is a focus of the teaching reform, not only can will have the same or similar technology based courses in a large cluster, but also can effectively solve the inner demand of the development of higher vocational education, and ultimately enhance the core competitiveness of the higher vocational colleges. Nowadays, there are still a lot of problems in the construction of Higher Vocational Education in China. This paper will analyze and explore the construction strategy of the professional group in higher vocational colleges.%高职院校进行课程体系的专业群建设是教学改革的一个重点,不仅能将具有相同或相近技术基础的课程组成一个庞大的集群,还能有效解决高职院校教育发展的内在需求,最终提升整个高职院校的核心竞争力。如今我国高职院校教育的专业群建设仍然存在很多问题,对此,本文将对高职院校专业群的建设策略进行详细分析和探究。

  17. Tone compatibility between HDR displays

    Science.gov (United States)

    Bist, Cambodge; Cozot, Rémi; Madec, Gérard; Ducloux, Xavier

    2016-09-01

    High Dynamic Range (HDR) is the latest trend in television technology and we expect an in ux of HDR capable consumer TVs in the market. Initial HDR consumer displays will operate on a peak brightness of about 500-1000 nits while in the coming years display peak brightness is expected to go beyond 1000 nits. However, professionally graded HDR content can range from 1000 to 4000 nits. As with Standard Dynamic Range (SDR) content, we can expect HDR content to be available in variety of lighting styles such as low key, medium key and high key video. This raises concerns over tone-compatibility between HDR displays especially when adapting to various lighting styles. It is expected that dynamic range adaptation between HDR displays uses similar techniques as found with tone mapping and tone expansion operators. In this paper, we survey simple tone mapping methods of 4000 nits color-graded HDR content for 1000 nits HDR displays. We also investigate tone expansion strategies when HDR content graded in 1000 nits is displayed on 4000 nits HDR monitors. We conclude that the best tone reproduction technique between HDR displays strongly depends on the lighting style of the content.

  18. Modern Display Technologies for Airborne Applications.

    Science.gov (United States)

    1983-04-01

    from the sulphonic acid group and achieved operating life of greater than 10’ cycles with over 3 years shelf-life. The switching speed was rather slow...pitch. In spite of all this ordering, however, liquid crystals are clearly liquid, flowing readily with quite low viscosity . Consequently the...solids and is the basis of most optical effects used in displays. Other physical properties, such as electrical conductivity, elasticity, viscosity

  19. Extending a scatterplot for displaying group structure in multivariate ...

    African Journals Online (AJOL)

    covariance matrices. ... In risk management, for example, a financial institution ... biplot is related to a multivariate analysis of variance (MANOVA) performed for ..... plants by using biplots, American Institute for Chemical Engineering Journal, ...

  20. Student displays of academic competence in the international university

    DEFF Research Database (Denmark)

    Kristiansen, Elisabeth Dalby

    multimodal methods for displaying academic competence, specifically in group projects requiring the students to construct a physical object. In such situations, language, writing and formulating are not oriented to as relevant resources for displaying academic competence. Lastly, the study finds...... competence and the physical object as the main product of the students' project....

  1. Electronic displays using optically pumped luminescent semiconductor nanocrystals

    Science.gov (United States)

    Weiss, Shimon; Schlamp, Michael C.; Alivisatos, A. Paul

    2011-09-27

    A multicolor electronic display is based on an array of luminescent semiconductor nanocrystals. Nanocrystals which emit light of different colors are grouped into pixels. The nanocrystals are optically pumped to produce a multicolor display. Different sized nanocrystals are used to produce the different colors. A variety of pixel addressing systems can be used.

  2. Electronic displays using optically pumped luminescent semiconductor nanocrystals

    Science.gov (United States)

    Weiss, Shimon; Schlam, Michael C; Alivisatos, A. Paul

    2014-03-25

    A multicolor electronic display is based on an array of luminescent semiconductor nanocrystals. Nanocrystals which emit tight of different colors are grouped into pixels. The nanocrystals are optically pumped to produce a multicolor display. Different sized nanocrystals are used to produce the different colors. A variety of pixel addressing systems can be used.

  3. Some Experiences in the Use of Group Work about Higher Vocational Teaching Real Estate Marketing%小组作业在高职房地产营销教学运用中的几点体会

    Institute of Scientific and Technical Information of China (English)

    李娇

    2011-01-01

    小组作业法强调团队协作,满足高职房地产营销对学生的专业技能和人际交往的要求。本文阐述了在高职房地产营销教学中运用小组作业法的几点体会,以期提供参考与借鉴。%Group work emphasizes teamwork,meet the demands on higher vocational students' professional skills and interpersonal in real estate marketing.This paper analyzessome experiences in the use of group work about higher vocational teaching real estate marketingin order to provide reference and lessons.

  4. The effect of configural displays on pilot situation awareness in helmet-mounted displays

    Science.gov (United States)

    Jenkins, Joseph Christopher

    pilot Level 1 SA (i.e., perception of information) for integration tasks. The performance results for the dynamic aircraft control task in Experiment 2 were inconclusive as performance differences between the three configural displays approached significance, but did not reach significance. Experiment 2 investigated design differences of configural displays impacting operator SA beyond perception, that is, once information extraction has taken place, how does the pilot utilize the information to build and develop Level 2 and Level 3 SA? Given the brief duration of the task from Experiment 2, it's recommended that the benefits of configural displays for higher-order SA be investigated in a more complex and extended task that would allow SA to be developed over time and possibly sampled more extensively than the task used in Experiment 2 that lasted from 1-2 seconds for the performance measures used. Experiments 3 and 4 compared operator SA for using the same three configural displays as used in Experiments 1 and 2 but for switching between attitude displays during task completion. The findings from Experiment 3 show that when using a configural display off-axis in a helmet-mounted display (HMD) that allows for aircraft attitude to be readily perceived and understood (i.e., the prevailing format from Experiment 1), the transition forward to the primary flight display (i.e., forward configural display) poses little impact on either pilot (expert) or flight test engineer (FTE, novice) ability to transition between the two displays and still control the aircraft. The results from Experiment 4 showed that experts and novices both choose to rely upon aircraft instruments for obtaining orientation cues and aircraft attitude state when using a HMD off-axis, but how expert and novice aircraft operators utilize flight instruments and real world visual cues off-axis in a HMD during extending off-axis viewing still needs to be examined. An application of the design recommendations

  5. Latest Developments In Liquid Crystal Television Displays

    Science.gov (United States)

    Morozumi, Shinji; Oguchi, Kouichi; Ohshima, Hiroyuki

    1984-06-01

    This paper will discuss developments in liquid crystal (LC) television displays, mainly for pocket-size TV sets. There are two types of LC television displays. One is a simple multiplexing type, and the other is an active matrix type. The former type is an easier way to fabricate large and low-cost LC panels than the latter. However, it has serious drawbacks. The contrast gets lower as the duty ratio gets higher. Therefore the TV image of this type inevitably has rather low contrast and resolution. On the other hand, the active matrix type, which consists of active elements in each pixel, has several advantages in overcoming such problems. The metal oxide semiconductor transistors and the amorphous or polycrystalline Si thin-film transistors (TFTs) have possibilities in this application. A full-color LC display, which can be realized by the combina-tion of color filters and poly Si TFT arrays on a transparent substrate, was proven to have excellent color image, close to that of conventional CRTs. Here, several examples of LC television displays, including color, are shown. Some of them are already on the market, and others will be soon.

  6. Ten inch Planar Optic Display

    Energy Technology Data Exchange (ETDEWEB)

    Beiser, L. [Beiser (Leo) Inc., Flushing, NY (United States); Veligdan, J. [Brookhaven National Lab., Upton, NY (United States)

    1996-04-01

    A Planar Optic Display (POD) is being built and tested for suitability as a high brightness replacement for the cathode ray tube, (CRT). The POD display technology utilizes a laminated optical waveguide structure which allows a projection type of display to be constructed in a thin (I to 2 inch) housing. Inherent in the optical waveguide is a black cladding matrix which gives the display a black appearance leading to very high contrast. A Digital Micromirror Device, (DMD) from Texas Instruments is used to create video images in conjunction with a 100 milliwatt green solid state laser. An anamorphic optical system is used to inject light into the POD to form a stigmatic image. In addition to the design of the POD screen, we discuss: image formation, image projection, and optical design constraints.

  7. ENERGY STAR Certified Displays - Deprecated

    Data.gov (United States)

    U.S. Environmental Protection Agency — This dataset is up-to-date but newer better data can be retrieved at: https://data.energystar.gov/dataset/ENERGY-STAR-Certified-Displays/xsyb-v8gs Certified models...

  8. Color speckle in laser displays

    Science.gov (United States)

    Kuroda, Kazuo

    2015-07-01

    At the beginning of this century, lighting technology has been shifted from discharge lamps, fluorescent lamps and electric bulbs to solid-state lighting. Current solid-state lighting is based on the light emitting diodes (LED) technology, but the laser lighting technology is developing rapidly, such as, laser cinema projectors, laser TVs, laser head-up displays, laser head mounted displays, and laser headlamps for motor vehicles. One of the main issues of laser displays is the reduction of speckle noise1). For the monochromatic laser light, speckle is random interference pattern on the image plane (retina for human observer). For laser displays, RGB (red-green-blue) lasers form speckle patterns independently, which results in random distribution of chromaticity, called color speckle2).

  9. Ultraminiature, Micropower Multipurpose Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — High information content electronic displays remain the most difficult element of the human-machine interface to effectively miniaturize. Mobile applications need a...

  10. A multi-viewer tiled autostereoscopic virtual reality display

    KAUST Repository

    Kooima, Robert

    2010-01-01

    Recognizing the value of autostereoscopy for 3D displays in public contexts, we pursue the goal of large-scale, high-resolution, immersive virtual reality using lenticular displays. Our contributions include the scalable tiling of lenticular displays to large fields of view and the use of GPU image interleaving and application optimization for real-time performance. In this context, we examine several ways to improve group-viewing by combining user tracking with multi-view displays. Copyright © 2010 by the Association for Computing Machinery, Inc.

  11. Effective color design for displays

    Science.gov (United States)

    MacDonald, Lindsay W.

    2002-06-01

    Visual communication is a key aspect of human-computer interaction, which contributes to the satisfaction of user and application needs. For effective design of presentations on computer displays, color should be used in conjunction with the other visual variables. The general needs of graphic user interfaces are discussed, followed by five specific tasks with differing criteria for display color specification - advertising, text, information, visualization and imaging.

  12. Performance studies of electrochromic displays

    Science.gov (United States)

    Ionescu, Ciprian; Dobre, Robert Alexandru

    2015-02-01

    The idea of having flexible, very thin, light, low power and even low cost display devices implemented using new materials and technologies is very exciting. Nowadays we can talk about more than just concepts, such devices exist, and they are part of an emerging concept: FOLAE (Flexible Organic and Large Area Electronics). Among the advantages of electrochromic devices are the low power consumption (they are non-emissive, i.e. passive) and the aspect like ink on paper with good viewing angle. Some studies are still necessary for further development, before proper performances are met and the functional behavior can be predicted. This paper presents the results of the research activity conducted to develop electric characterization platform for the organic electronics display devices, especially electrochromic displays, to permit a thorough study. The hardware part of platform permits the measuring of different electric and optical parameters. Charging/discharging a display element presents high interest for optimal driving circuitry. In this sense, the corresponding waveforms are presented. The contrast of the display is also measured for different operation conditions as driving voltage levels and duration. The effect of temperature on electrical and optical parameters (contrast) of the display will be also presented.

  13. On the Current Situation of Studies on Students' Group Psychological Counseling in Higher Vocational Colleges%高职院校大学生团体心理辅导的研究现状

    Institute of Scientific and Technical Information of China (English)

    郭凯娟

    2016-01-01

    文章对团体心理辅导对大学生进行心理健康教育的积极作用的进行阐述,并对高职院校施行团体心理辅导的可行性和优势进行分析,最后提出开展团体心理辅导的途径和方法。%This paper elaborates the positive role of group psy-chological counseling for college students' psychological health education, analyzes the feasibility and advantages of implement-ing group psychological counseling in higher vocational colleges, and finally proposes the ways to implement group psychological counseling.

  14. Application of Group Counseling in Freshman Class Management in Higher Vocational College%团体心理辅导在高职新生班级管理中的应用

    Institute of Scientific and Technical Information of China (English)

    陶大伟

    2011-01-01

    团体心理辅导是一种利用团体的力量来帮助个体成长的心理辅导技巧,强调亲身体验和感受.在高职新生班级管理中应用团体心理辅导,有助于民主型师生关系的建立,有助于班级凝聚力的形成,有助于帮助学生解除适应不良现象.%Group counseling is a psychological counseling skill to help the individual growth with group's strength, emphasizing personal experience and feeling. The application of group counseling in freshman class management in higher vocational college will contribute to the establishment of democratic relationship between teachers and students, the formation of class cohesion and relieve students' maladjustment phenomenon.

  15. Serotype specific polymerase chain reaction identifies a higher prevalence of streptococcus mutans serotype k and e in a random group of children with dental caries from the Southern region of India

    Directory of Open Access Journals (Sweden)

    Arun Prasad Rao

    2014-01-01

    Full Text Available Background: The development of dental caries has been associated with the oral prevalence of Streptococcus mutans. Four serotypes of S. mutans have been reported, namely serotype c, e, f, and k that are classified based on the composition and linkages of cell wall polysaccharides, response to physiological reactions, sero-specificity and 16s rRNA homology. Although the oral prevalence of S. mutans serotype c in Indian subjects with or without caries is known, the prevalence of the other three serotypes, e, f, and k are not known. Hence in this study, we have investigated the occurrence of the e, f, and k serotypes in children with or without caries within the age group of 6-12 years. Materials and Methods: Genomic DNA isolated from whole saliva of caries active (CA and caries free (CF groups were first screened for the presence of S. mutans by strain specific polymerase chain reaction (PCR. Those samples that tested positive for the presence of S. mutans were further analyzed by serotype specific PCR to identify the prevalence of the serotypes. Results: Strain specific PCR indicated a higher prevalence of S. mutans in CA group (80% relative to CF group (43%. Further analysis of the S. mutans positive samples in both groups indicated a higher prevalence of serotype k and e, followed by serotype f in CA group. Conclusion: The present data clearly establishes a novel S. mutans serotype prevalence hierarchy in children from this region, compared with those that have been reported elsewhere. Besides, the data are also clinically significant as the occurrence of serotype k has been associated with infective endocarditis.

  16. Thinking about strengthening financial management of logistics group in institutions of higher education%加强高校后勤集团财务管理的思考

    Institute of Scientific and Technical Information of China (English)

    季东

    2011-01-01

    后勤社会化改革,不仅给高校后勤工作带来了诸多变化,而且也使得加强高校后勤集团的财务管理变得十分迫切、十分必要。通过分析当前高校后勤集团财务管理的现状、集团财务管理的特点和原则以及在财务管理方面存在的不足的基础上,提出应按照建立现代企业制度的要求,理顺学校与后勤集团之间的财务关系,建立科学规范的、新的财务管理体制,做到既有利于学校对后勤集团进行财务监督与管理,又有利于调动其积极性,积极稳妥地推进后勤集团的社会化改革。%The socialization reform of logistics not only brings various changes for logistics work in institutions of higher education,but also makes it more urgent and necessary to enforce the financial management of logistic group.By analyzing the current financial management situation,characteristics,principles,and shortcoming of logistics group,puts forward that should according to the requirement of modern enterprise system,straighten out the financial relationship between institutions of higher education and logistics group,and establish new scientific and normal financial management mechanism,so as to make it beneficial to the financial supervision and management for logistics group,also benefit to mobilize the initiative of logistics group,and advance the socialization reform of logistics group actively and soundly.

  17. Positive Psychology Group Counseling for New Students of Higher Vocational Schools%积极心理学团体辅导对高职新生的应用研究

    Institute of Scientific and Technical Information of China (English)

    叶红萍; 陆伟

    2011-01-01

    目的:探讨积极心理学团体辅导对高职新生主观幸福感的影响。方法:将50位高职新生随机分组,实验组接受为期10周、每周一次的积极心理学团体辅导,将其余学生列入等候名单,设为对照组,比较两组团体辅导前后主观幸福感有无差异,分析团体辅导中的疗效因素。结果:1)经过10周的积极心理学团体辅导后,实验组的主观幸福感各项指标均高于对照组,差异具有统计学意义。2)高职新生积极心理学团体辅导中,重要的疗效因子依次为:存在意识因子、团体凝聚力、情绪宣泄。结论:积极心理学团体辅导能有效提高高职学生的主观幸福感,存在意识、团体凝聚力和情感宣泄是积极心理学团体辅导发挥积极影响的重要因素。%Objective To investigate the effectiveness of positive psychology group counseling on the subjective well-being of new students of vocational institute.Methods:50 new students of vocational institute were randomized to Positive Psychology Group Counseling as experiment group or waiting list as control group for an 10-week observation.Index of well-being were administered to compare independently both at baseline and at the end of 10th week.The important therapeutic factor was also suryeyed.Result:1)Compared to control group,after 10-week positive psychology group counseling,index of well-being of the experiment group is significantly higher.2)The important therapeutic factors in positive psychology group counseling were existential factors,group cohesiveness,catharsis.Conclu sion:Positive psychology group counseling can heighten the subjective well-being of new students of vocational institute.Existential factors,group cohesiveness,catharsis play significant role in positive psychology group counseling.

  18. Screening peptide mimotopes of blood group B carbohydrate antigen using phage display peptide library%随机十二肽噬菌体展示文库筛选血型B抗原模拟多肽的实验研究

    Institute of Scientific and Technical Information of China (English)

    李许锋; 罗敏; 邹建军; 岑东芝; 何克菲; 张积仁

    2011-01-01

    OBJECTIVE: To screen peptide mimotopes of blood group B carbohydrate antigen with high affinity for blood group B monoclonal antibody which can replace carbohydrate antigen using a phage display peptide library, and find a new tool for application of blood group B carbohydrate antigen. METHODS: A 12-mer phage peptide library was screened for 3 rounds by using a blood group B monoclonal antibody as target protein according to such a procedure as “adsorbing,eluting and amplification”, and positive clones were selected randomly,confirmed by sandwich ELISA, single strand DNA was extracted from these positive clones and sequenced, and the mimic peptides were deduced by the DNA sequence. RESULTS: After 3 rounds of effective bio-panning, two major mimic peptides with high affinity for target protein were obtained, one peptide sequence was TKNMLSLPVGPG,the other one was HSLKHTQMSYSS. CONCLUSION: The resuits shows that the motif identified through a 12- mer phage display peptide library can be mimiced and may be a substitute for blood group B antigen.%目的:筛选出替代血型B抗原的模拟多肽,用多肽抗原替代糖类抗原.方法:抗血型B抗原的单克隆抗体作为固相筛选靶分子,对随机十二肽噬菌体展示文库进行生物淘选(bio-panning),经包被-结合-洗脱-扩增等循环3轮,对筛选的克隆ELISA鉴定,并通过剂量依赖实验验证其结合特异性.最后提取DNA测序,确定模拟肽氨基酸序列.结果:3轮筛选结束,得到2个亲和力较强的十二肽序列TKNMLSL-PVGPG和HSLKHTQMSYSS.结论:经过生物筛选得到模拟多肽序列,利用噬菌体展示技术筛选糖类抗原的模拟肽具有可行性,为糖类抗原的研究提供一种新思路.

  19. The VLT Real Time Display

    Science.gov (United States)

    Herlin, T.; Brighton, A.; Biereichel, P.

    The VLT Real-Time Display (RTD) software was developed in order to support image display in real-time, providing a tool for users to display video like images from a camera or detector as fast as possible on an X-Server. The RTD software is implemented as a package providing a Tcl/Tk image widget written in C++ and an independent image handling library and can be used as a building block, adding display capabilities to dedicated VLT control applications. The RTD widget provides basic image display functionality like: panning, zooming, color scaling, colormaps, intensity changes, pixel query, overlaying of line graphics. A large set of assisting widgets, e.g., colorbar, zoom window, spectrum plot are provided to enable the building of image applications. The support for real-time is provided by an RTD image event mechanism used for camera or detector subsystems to pass images to the RTD widget. Image data are passed efficiently via shared memory. This paper describes the architecture of the RTD software and summarizes the features provided by RTD.

  20. Phosphors for flat panel emissive displays

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, M.T.; Walko, R.J.; Phillips, M.L.F.

    1995-07-01

    An overview of emissive display technologies is presented. Display types briefly described include: cathode ray tubes (CRTs), field emission displays (FEDs), electroluminescent displays (ELDs), and plasma display panels (PDPs). The critical role of phosphors in further development of the latter three flat panel emissive display technologies is outlined. The need for stable, efficient red, green, and blue phosphors for RGB fall color displays is emphasized.

  1. A polystyrene binding target-unrelated peptide isolated in the screening of phage display library.

    Science.gov (United States)

    Bakhshinejad, Babak; Sadeghizadeh, Majid

    2016-11-01

    Phage display is a powerful methodology for the identification of peptide ligands binding to any desired target. However, the selection of target-unrelated peptides (TUPs) appears as a huge problem in the screening of phage display libraries through biopanning. The phage-displayed peptide TLHPAAD has been isolated both in our laboratory and by another reserach group on completely different screening targets prompting us to hypothesize that it may be a potential TUP. In the current study, we analyzed the binding characteristics and propagation rate of phage clone displaying TLHPAAD peptide (SW-TUP clone). The results of ELISA experiment and phage recovery assay provided strong support for the notion that SW-TUP phage binds to polystyrene with a significantly higher affinity than control phage clones. Furthermore, this polystyrene binding was demonstrated to occur in a concentration- and pH-dependent mode. Characterization of the propagation profile of phage clones within a specified time course revealed no statistically significant difference between the amplification rate of SW-TUP and control phages. Our findings lead us to the conclusion that SW-TUP phage clone with the displayed peptide TLHPAAD is not a true target binder and its selection in biopanning experiments results from its bidning affinity to the polystyrene surface of the solid phase.

  2. The Effective Organization of Teaching in Groups on Practical Training Course of Higher Vocational Logistics%谈高职物流实训课程分组教学的有效组织

    Institute of Scientific and Technical Information of China (English)

    何晓光

    2012-01-01

    分组教学是培养学生的职业技能与职业素养,提高学生的就业适应性的有效途径。目前高职物流实训课程分组教学存在着课堂组织效率低下,不同组别之间教学进度不一致等问题。为此,高职院校要增加投入,实现多人同时教学;打通课堂、课外学习通道,有效组织教学。%Teaching in groups is the effective approach for cultivating students' vocational skills and vocational quality,and increasing their employment adaptability.At present there exist some problems of teaching in groups for practical training course of higher vocational logistics,such as the low efficiency of classroom organization,the disagreement of teaching plan for different groups.Therefore,higher vocational colleges should increase investment,and more people teach at the same time.They should get through the study channels inside and outside classroom to organize teaching effectively.

  3. BES Monitoring & Displaying System

    Institute of Scientific and Technical Information of China (English)

    MengWANG; BingyunZHANG; 等

    2001-01-01

    BES1 Monitoring & Displaying System(BESMDS)is projected to monitor and display the running status of DAQ and Slow Control systems of BES through the Web for worldwide accessing.It provides a real-time remote means of monitoring as well as an approach to study the environmental influence upon physical data taking.The system collects real-time data separately from BES online subsystems by network sockets and stores the data into a database.People can access the system through its web site.which retrieves data on request from the database and can display results in dynamically created images.Its web address in http:// besmds,ihep.ac.cn/

  4. Engineering antibodies by yeast display.

    Science.gov (United States)

    Boder, Eric T; Raeeszadeh-Sarmazdeh, Maryam; Price, J Vincent

    2012-10-15

    Since its first application to antibody engineering 15 years ago, yeast display technology has been developed into a highly potent tool for both affinity maturing lead molecules and isolating novel antibodies and antibody-like species. Robust approaches to the creation of diversity, construction of yeast libraries, and library screening or selection have been elaborated, improving the quality of engineered molecules and certainty of success in an antibody engineering campaign and positioning yeast display as one of the premier antibody engineering technologies currently in use. Here, we summarize the history of antibody engineering by yeast surface display, approaches used in its application, and a number of examples highlighting the utility of this method for antibody engineering.

  5. PROGRAMMABLE DISPLAY PUSHBUTTON LEGEND EDITOR

    Science.gov (United States)

    Busquets, A. M.

    1994-01-01

    The Programmable Display Pushbutton (PDP) is a pushbutton device available from Micro Switch which has a programmable 16 x 35 matrix of LEDs on the pushbutton surface. Any desired legends can be displayed on the PDPs, producing user-friendly applications which greatly reduce the need for dedicated manual controls. Because the PDP can interact with the operator, it can call for the correct response before transmitting its next message. It is both a simple manual control and a sophisticated programmable link between the operator and the host system. The Programmable Display Pushbutton Legend Editor, PDPE, is used to create the LED displays for the pushbuttons. PDPE encodes PDP control commands and legend data into message byte strings sent to a Logic Refresh and Control Unit (LRCU). The LRCU serves as the driver for a set of four PDPs. The legend editor (PDPE) transmits to the LRCU user specified commands that control what is displayed on the LED face of the individual pushbuttons. Upon receiving a command, the LRCU transmits an acknowledgement that the message was received and executed successfully. The user then observes the effect of the command on the PDP displays and decides whether or not to send the byte code of the message to a data file so that it may be called by an applications program. The PDPE program is written in FORTRAN for interactive execution. It was developed on a DEC VAX 11/780 under VMS. It has a central memory requirement of approximately 12800 bytes. It requires four Micro Switch PDPs and two RS-232 VAX 11/780 terminal ports. The PDPE program was developed in 1985.

  6. Computational multi-projection display.

    Science.gov (United States)

    Moon, Seokil; Park, Soon-Gi; Lee, Chang-Kun; Cho, Jaebum; Lee, Seungjae; Lee, Byoungho

    2016-04-18

    A computational multi-projection display is proposed by employing a multi-projection system combining with compressive light field displays. By modulating the intensity of light rays from a spatial light modulator inside a single projector, the proposed system can offer several compact views to observer. Since light rays are spread to all directions, the system can provide flexible positioning of viewpoints without stacking projectors in vertical direction. Also, if the system is constructed properly, it is possible to generate view images with inter-pupillary gap and satisfy the super multi-view condition. We explain the principle of the proposed system and verify its feasibility with simulations and experimental results.

  7. 团体心理辅导在高职教育中的作用和意义%The role and the significance of group psychological guidance in higher vocational education

    Institute of Scientific and Technical Information of China (English)

    李怡宁

    2014-01-01

    Group psychological guidance is derived from the method of psychological counseling, mental health education in higher vocational plays an important role and significance, is an indispensable part of in the mental health education, should cause the whole society, especially the attention of the college of higher vocational education teaching workers.%团体心理辅导是源自美国的心理辅导方法,在高职心理健康教育中有着重要的作用和意义,是心理健康教育中不可缺少的一部分,应引起全社会,尤其是高职学院教育教学工作者的重视。

  8. 绘画艺术介入高职院校团体心理辅导初探%Painting Involvement into the Group Mental Counseling in Higher Vocational Colleges

    Institute of Scientific and Technical Information of China (English)

    金鑫

    2015-01-01

    高职教育是高等教育的重要组成部分,它的快速崛起满足了素质教育发展的需要。高职院校规模的日益扩大使得学生心理问题增多,许多高职院校都开设了心理健康课程和通过开展心理咨询来解决学生的心理问题。团体心理辅导作为一种有效的预防和解决学生心理问题的方式,近年来在高职院校中应用的越来越为广泛。如何能够拓宽团体心理辅导的途径,选取更加有效管用的方式?笔者认为,可将绘画艺术疗法应用于团体心理辅导之中。%Vocational education is an important part of higher education and its rapid development meet the needs of quality ed-ucation.Increasing size of vocational colleges has caused the increasing psychological problems among students.Many higher vocational colleges have set up mental health courses and conducted mental health counseling to solve the students'psychological problems.As an effective prevention and method to solve psychological problems of students,Group counseling has found its application more and more widely in higher vocational colleges in recent years.How can widen the channels of group counseling and select a more effective way useful?The author believe that painting arts therapy can be applied to group counseling.

  9. Display standards for commercial flight decks

    Science.gov (United States)

    Lamberth, Larry S.; Penn, Cecil W.

    1994-06-01

    SAE display standards are used as guidelines for certifying commercial airborne electronic displays. The SAE document generation structure and approval process is described. The SAE committees that generate display standards are described. Three SAE documents covering flat panel displays (AS-8034, ARP-4256, and ARP-4260) are discussed with their current status. Head-Up Display documents are also in work.

  10. 高职院校篮球训练队团体凝聚力培养对策研究%Research on the Cultivation of Group Cohesion in Bas-ketball Teams of Higher Vocational Colleges

    Institute of Scientific and Technical Information of China (English)

    罗军

    2013-01-01

    In this paper, from the characteristics of higher voca-tional colleges and training of basketball players, based on analy-sis of influencing factors on group cohesion, and discusses how to enhance the ways and methods of group cohesion. The way to de-velop community cohesion, thereby enhancing the overall strength of the school basketball team.%  本文从高职院校篮球训练队及运动员的特点出发,在深入分析影响团体凝聚力的因素的基础上,探讨如何增强群体凝聚力的途径与方法。提出培养团体凝聚力的途径,从而增强学校篮球训练队的整体实力。

  11. 高职人才培养机理研究:产业集群创新系统的视角%Research on Talent Cultivation Mechanism of the Higher Vocational Education Based on Industry Cluster Groups

    Institute of Scientific and Technical Information of China (English)

    毛才盛; 吕慈仙

    2012-01-01

    本文通过梳理产业集群创新系统相关理论,结合高职人才培养模式特征,基于产业集群与人才培养的耦合机理结构,提出了产业集群与人才培养的耦合度模型,分析产业集群下高职人才培养模式存在着专业设置与市场需求脱节、人才培养资源共享机制不健全、产业与人才培养互动机制缺失等问题,并提出实现产业集群与人才培养的良性耦合机制的对策。%With analysing industry cluster groups theory and talent cultivation features of high vocational education,coupling mechanism between industry cluster groups and talent cultivation,this paper proposes the coupling model of industry cluster groups and talent cultivation,analyses the problems existing in higher vocational talent cultivation based on the industry cluster groups such as no tight coupling between professional setting and market demand,no strong talent cultivation resource sharing mechanism,no information sharing mechanism between industry and talent cultivation,and puts forward the suggestions on how to realize the coupling mechanism between industry cluster and talent cultivation.

  12. "It Looks Like an Adult Sweetie Shop": Point-of-Sale Tobacco Display Exposure and Brand Awareness in Scottish Secondary School Students.

    Science.gov (United States)

    van der Sluijs, Winfried; Haseen, Farhana; Miller, Martine; MacGregor, Andy; Sharp, Clare; Amos, Amanda; Best, Catherine; Stead, Martine; Eadie, Douglas; Pearce, Jamie; Frank, John; Haw, Sally

    2016-10-01

    As further restrictions have been placed on tobacco advertising and promotions, point-of-sale (PoS) displays of cigarettes in shops have become an increasingly important source of young people's exposure to tobacco products. This study explored the relationship between PoS displays of cigarettes and brand awareness among secondary school students in Scotland. Cross-sectional school surveys (n = 1406) and focus groups (n = 86) were conducted with S2 (13-14 years) and S4 (15-16 years) students in four schools of differing socioeconomic status in 2013, prior to the PoS display ban in large shops. Adjusted negative binomial regression analysis examined associations between brand awareness and exposure variables (visiting tobacco retailers, noticing displays of tobacco products). Students visiting small shops more frequently (relative rate ratio [RRR] 1.19, 95% confidence interval [CI] 1.01-1.41) and those who noticed cigarette displays in small shops (RRR 1.24, 95% CI 1.03-1.51) and large supermarkets (RRR 1.15, 95% CI 1.01-1.30) had higher brand awareness. The focus groups supported these findings. Participants described PoS tobacco displays as being eye-catching, colorful and potentially attractive to young people. This mixed-methods study showed that higher cigarette brand awareness was significantly associated with regularly visiting small shops and noticing PoS displays in small and large shops, even when students' smoking status, smoking in their social networks, leisure activities, and demographics were included as confounding variables. This highlights the importance of PoS displays of tobacco products in increasing brand awareness, which is known to increase youth smoking susceptibility, and thus the importance of implementing PoS display bans in all shops. As increasing restrictions have been placed on tobacco promotion in many countries, PoS displays of cigarettes in shops have become an important source of young people's exposure to tobacco products and

  13. Display Apple M7649Zm

    CERN Multimedia

    2001-01-01

    It was Designed for the Power Mac G4. This Apple studio display gives you edge-to-edge distortion-free images. With more than 16.7 million colors and 1,280 x 1,024 dpi resolution, you view brilliant and bright images on this Apple 17-inch monitor.

  14. Real Time Sonic Boom Display

    Science.gov (United States)

    Haering, Ed

    2014-01-01

    This presentation will provide general information about sonic boom mitigation technology to the public in order to supply information to potential partners and licensees. The technology is a combination of flight data, atmospheric data and terrain information implemented into a control room real time display for flight planning. This research is currently being performed and as such, any results and conclusions are ongoing.

  15. Graphics Display of Foreign Scripts.

    Science.gov (United States)

    Abercrombie, John R.

    1987-01-01

    Describes Graphics Project for Foreign Language Learning at the University of Pennsylvania, which has developed ways of displaying foreign scripts on microcomputers. Character design on computer screens is explained; software for graphics, printing, and language instruction is discussed; and a text editor is described that corrects optically…

  16. Verbal Modification via Visual Display

    Science.gov (United States)

    Richmond, Edmun B.; Wallace-Childers, La Donna

    1977-01-01

    The inability of foreign language students to produce acceptable approximations of new vowel sounds initiated a study to devise a real-time visual display system whereby the students could match vowel production to a visual pedagogical model. The system used amateur radio equipment and a standard oscilloscope. (CHK)

  17. Colour displays for categorical images

    NARCIS (Netherlands)

    Glasbey, C.; Heijden, van der G.W.A.M.; Toh, V.F.K.; Gray, A.J.

    2007-01-01

    We propose a method for identifying a set of colours for displaying 2D and 3D categorical images when the categories are unordered labels. The principle is to find maximally distinct sets of colours. We either generate colours sequentially, to maximize the dissimilarity or distance between a new col

  18. Autostereoscopic display with eye tracking

    Science.gov (United States)

    Tomono, Takao; Hoon, Kyung; Ha, Yong Soo; Kim, Sung-Sik; Son, Jung-Young

    2002-05-01

    Auto-stereoscopic 21-inch display with eye tracking having wide viewing zone and bright image was fabricated. The image of display is projected to retinal through several optical components. We calculated optical system for wider viewing zone by using Inverse-Ray Trace Method. The viewing zone of first model is 155mm (theoretical value: 161mm). We could widen viewing zone by controlling paraxial radius of curvature of spherical mirror, the distance between lenses and so on. The viewing zone of second model is 208mm. We used two spherical mirrors to obtain twice brightness. We applied eye-tracking system to the display system. Eye recognition is based on neural network card based on ZICS technology. We fabricated Auto-stereoscopic 21-inch display with eye tracking. We measured viewing zone based on illumination area. The viewing zone was 206mm, which was close to theoretical value. We could get twice brightness also. We could see 3D image according to position without headgear.

  19. Crystal ball single event display

    Energy Technology Data Exchange (ETDEWEB)

    Grosnick, D.; Gibson, A. [Valparaiso Univ., IN (United States). Dept. of Physics and Astronomy; Allgower, C. [Argonne National Lab., IL (United States). High Energy Physics Div.; Alyea, J. [Valparaiso Univ., IN (United States). Dept. of Physics and Astronomy]|[Argonne National Lab., IL (United States). High Energy Physics Div.

    1997-10-15

    The Single Event Display (SED) is a routine that is designed to provide information graphically about a triggered event within the Crystal Ball. The SED is written entirely in FORTRAN and uses the CERN-based HICZ graphing package. The primary display shows the amount of energy deposited in each of the NaI crystals on a Mercator-like projection of the crystals. Ten different shades and colors correspond to varying amounts of energy deposited within a crystal. Information about energy clusters is displayed on the crystal map by outlining in red the thirteen (or twelve) crystals contained within a cluster and assigning each cluster a number. Additional information about energy clusters is provided in a series of boxes containing useful data about the energy distribution among the crystals within the cluster. Other information shown on the event display include the event trigger type and data about {pi}{sup o}`s and {eta}`s formed from pairs of clusters as found by the analyzer. A description of the major features is given, along with some information on how to install the SED into the analyzer.

  20. GridOrbit public display

    DEFF Research Database (Denmark)

    Ramos, Juan David Hincapie; Tabard, Aurélien; Bardram, Jakob

    2010-01-01

    We introduce GridOrbit, a public awareness display that visualizes the activity of a community grid used in a biology laboratory. This community grid executes bioin-formatics algorithms and relies on users to donate CPU cycles to the grid. The goal of GridOrbit is to create a shared awareness about...

  1. Information retrieval and display system

    Science.gov (United States)

    Groover, J. L.; King, W. L.

    1977-01-01

    Versatile command-driven data management system offers users, through simplified command language, a means of storing and searching data files, sorting data files into specified orders, performing simple or complex computations, effecting file updates, and printing or displaying output data. Commands are simple to use and flexible enough to meet most data management requirements.

  2. Display Sharing: An Alternative Paradigm

    Science.gov (United States)

    Brown, Michael A.

    2010-01-01

    The current Johnson Space Center (JSC) Mission Control Center (MCC) Video Transport System (VTS) provides flight controllers and management the ability to meld raw video from various sources with telemetry to improve situational awareness. However, maintaining a separate infrastructure for video delivery and integration of video content with data adds significant complexity and cost to the system. When considering alternative architectures for a VTS, the current system's ability to share specific computer displays in their entirety to other locations, such as large projector systems, flight control rooms, and back supporting rooms throughout the facilities and centers must be incorporated into any new architecture. Internet Protocol (IP)-based systems also support video delivery and integration. IP-based systems generally have an advantage in terms of cost and maintainability. Although IP-based systems are versatile, the task of sharing a computer display from one workstation to another can be time consuming for an end-user and inconvenient to administer at a system level. The objective of this paper is to present a prototype display sharing enterprise solution. Display sharing is a system which delivers image sharing across the LAN while simultaneously managing bandwidth, supporting encryption, enabling recovery and resynchronization following a loss of signal, and, minimizing latency. Additional critical elements will include image scaling support, multi -sharing, ease of initial integration and configuration, integration with desktop window managers, collaboration tools, host and recipient controls. This goal of this paper is to summarize the various elements of an IP-based display sharing system that can be used in today's control center environment.

  3. 三极小型场发射显示器的半圆组阴栅结构优化制作%Optimization Fabrication for Semicircle-Group Cathode-Grid Structure with Triode Small-Sized Field Emission Display

    Institute of Scientific and Technical Information of China (English)

    李玉魁; 王凤歌; 刘兴辉; 曾凡光

    2013-01-01

    对钠钙平板玻璃进行切割形成后封装面板.结合高效的丝网印刷技术,在后封装面板上制作了半圆组阴栅结构.烧结的银浆层用于形成导电电极组中的双长条电极,而固化的绝缘浆料则用于构成绝缘层.碳纳米管直接制备在长条电极的表面,呈现双半圆形状,用于进行电子发射.栅极则是固定在碳纳米管阴极的上方,栅极和阴极之间依靠栅极基底而相互隔离.测试结果表明,应用半圆组阴栅结构,能够进一步降低阴极-栅极之间的电容效应,提高碳纳米管的电子发射能力,并增强三极场发射显示器的驱动灵活性.以碳纳米管作为阴极材料,进行了三极结构小型场发射显示器的研制.该三极显示器具有良好的场致发射特性,高的发光亮度以及优良的发光图像均匀度,其开启场强约为2.12 V/μm,且制作成本低廉.%Rear packaging face-plate was fabricated with the cut soda lime flat panel glass.With high effective screen-printing technique,the semicircle-group cathode-grid structure was developed on the rear packaging face-plate surface.The sintered silver slurry layer was used to form the double long-bar electrodes of the conducting electrode group in the semicircle-group cathode-grid structure,and the insulation layer was fabricated using the solidified insulation slurry.On the long-bar electrodes surface,the carbon nanotube cathodes with double semicircle shape were prepared,which was used to emit lots of electrons.The grid was fixed on carbon nanotube cathode of the rear packaging face-plate,and the grid substrate was adopted to separate the grid and the cathode.From the measure results,with the fabricated semicircle-group cathode-grid structure,the capacity effect between the cathode and the grid would be further reduced,the electron emission ability of carbon nanotube cathode could be improved,and the operation flexibility of whole field emission display prototype was also enhanced

  4. Drawing on Elements of Group Counseling to Improve the Effectiveness of Higher Vocational Class Construction%借鉴团体心理辅导元素 提高高职班级建设成效

    Institute of Scientific and Technical Information of China (English)

    尹秋云

    2011-01-01

    班级是高职院校对学生实施管理的基本单位,高职班级建设的成效直接影响高职院校教育措施的落实,对高职学生发展也有着重要的影响作用。在高职班级建设中,借鉴团体心理辅导对高职班级建设的有益元素,可有效突破高职班级建设中理念与方法的局限,提高高职班级建设成效,促进高职班级教育功能的强化。%The class is the basic unit of the implementation of the management in higher vocational colleges.The effectiveness of the class construction directly influences the implementation of measures of higher vocational education,and the development of vocational students.Referencing beneficial elements of group counseling can effectively break through the limitations of ideas and methods in the construction of higher vocational classes,and promote the construction effect and strengthening the function of education

  5. Displays for future intermediate UAV

    Science.gov (United States)

    Desjardins, Daniel; Metzler, James; Blakesley, David; Rister, Courtney; Nuhu, Abdul-Razak

    2008-04-01

    The Dedicated Autonomous Extended Duration Airborne Long-range Utility System (DAEDALUS) is a prototype Unmanned Aerial Vehicle (UAV) that won the 2007 AFRL Commander's Challenge. The purpose of the Commander's Challenge was to find an innovative solution to urgent warfighter needs by designing a UAV with increased persistence for tactical employment of sensors and communication systems. DAEDALUS was chosen as a winning prototype by AFRL, AFMC and SECAF. Follow-on units are intended to fill an intermediate role between currently fielded Tier I and Tier II UAV's. The UAV design discussed in this paper, including sensors and displays, will enter Phase II for Rapid Prototype Development with the intent of developing the design for eventual production. This paper will discuss the DAEDALUS UAV prototype system, with particular focus on its communications, to include the infrared sensor and electro-optical camera, but also displays, specifically man-portable.

  6. Characterization of the rotating display.

    Science.gov (United States)

    Keyes, J W; Fahey, F H; Harkness, B A; Eggli, D F; Balseiro, J; Ziessman, H A

    1988-09-01

    The rotating display is a useful method for reviewing single photon emission computed tomography (SPECT) data. This study evaluated the requirements for a subjectively pleasing and useful implementation of this technique. Twelve SPECT data sets were modified and viewed by several observers who recorded the minimum framing rates for apparent smooth rotation, 3D effect, effects of image size, and other parameters. The results showed that a minimum of 16 frames was needed for a useful display. Smaller image sizes and more frames were preferred. The recommended minimal framing rate for a 64-frame study is 16-17 frames per second and for a 32-frame study, 12-13 frames per second. Other enhancements also were useful.

  7. Interactive display of polygonal data

    Energy Technology Data Exchange (ETDEWEB)

    Wood, P.M.

    1977-10-01

    Interactive computer graphics is an excellent approach to many types of applications. It is an exciting method of doing geographic analysis when desiring to rapidly examine existing geographically related data or to display specially prepared data and base maps for publication. One such program is the interactive thematic mapping system called CARTE, which combines polygonal base maps with statistical data to produce shaded maps using a variety of shading symbolisms on a variety of output devices. A polygonal base map is one where geographic entities are described by points, lines, or polygons. It is combined with geocoded data to produce special subject or thematic maps. Shading symbolisms include texture shading for areas, varying widths for lines, and scaled symbols for points. Output devices include refresh and storage CRTs and auxiliary Calcomp or COM hardcopy. The system is designed to aid in the quick display of spatial data and in detailed map design.

  8. Game engines and immersive displays

    Science.gov (United States)

    Chang, Benjamin; Destefano, Marc

    2014-02-01

    While virtual reality and digital games share many core technologies, the programming environments, toolkits, and workflows for developing games and VR environments are often distinct. VR toolkits designed for applications in visualization and simulation often have a different feature set or design philosophy than game engines, while popular game engines often lack support for VR hardware. Extending a game engine to support systems such as the CAVE gives developers a unified development environment and the ability to easily port projects, but involves challenges beyond just adding stereo 3D visuals. In this paper we outline the issues involved in adapting a game engine for use with an immersive display system including stereoscopy, tracking, and clustering, and present example implementation details using Unity3D. We discuss application development and workflow approaches including camera management, rendering synchronization, GUI design, and issues specific to Unity3D, and present examples of projects created for a multi-wall, clustered, stereoscopic display.

  9. Proof nets for display logic

    CERN Document Server

    Moot, Richard

    2007-01-01

    This paper explores several extensions of proof nets for the Lambek calculus in order to handle the different connectives of display logic in a natural way. The new proof net calculus handles some recent additions to the Lambek vocabulary such as Galois connections and Grishin interactions. It concludes with an exploration of the generative capacity of the Lambek-Grishin calculus, presenting an embedding of lexicalized tree adjoining grammars into the Lambek-Grishin calculus.

  10. Modern Display Technologies and Applications

    Science.gov (United States)

    1982-01-01

    conventional tubes, LSI circuitry offers the possibility of correcting some of the deficiencies in electron-optic perform- ance and may lead to acceptable...certain ceramic materials such as PLZT (lead lanthanum zirconate titanate) can be utilized for display applications. PLZT is transparent in the visible...consuming power (3.8.12). 3.8.4.2 State of development, Magnetic particles have been made of polyethylene with powdered Strontium ferrite as a filler

  11. Striations in Plasma Display Panel

    Institute of Scientific and Technical Information of China (English)

    OUYANG Ji-Ting; CAO Jing; MIAO Jin-Song

    2005-01-01

    @@ The phenomenon of striation has been investigated experimentally in a macroscopic ac-plasma display panel (PDP). The relationship between the characteristics of striation and the operation conditions including voltage, frequency, rib, and electrode configuration, etc is obtained experimentally. The origin of the striations is considered to be the ionization waves in the transient positive column near the dielectric surface in the anode area during the discharge, and the perturbation is caused by resonance kinetic effects in inert gas.

  12. Multiview synthesis for autostereoscopic displays

    Science.gov (United States)

    Dane, Gökçe.; Bhaskaran, Vasudev

    2013-09-01

    Autostereoscopic (AS) displays spatially multiplex multiple views, providing a more immersive experience by enabling users to view the content from different angles without the need of 3D glasses. Multiple views could be captured from multiple cameras at different orientations, however this could be expensive, time consuming and not applicable to some applications. The goal of multiview synthesis in this paper is to generate multiple views from a stereo image pair and disparity map by using various video processing techniques including depth/disparity map processing, initial view interpolation, inpainting and post-processing. We specifically emphasize the need for disparity processing when there is no depth information is available that is associated with the 2D data and we propose a segmentation based disparity processing algorithm to improve disparity map. Furthermore we extend the texture based 2D inpainting algorithm to 3D and further improve the hole-filling performance of view synthesis. The benefit of each step of the proposed algorithm is demonstrated with comparison to state of the art algorithms in terms of visual quality and PSNR metric. Our system is evaluated in an end-to-end multi view synthesis framework where only stereo image pair is provided as input to the system and 8 views are outputted and displayed in 8-view Alioscopy AS display.

  13. Visual display requirements: on standards and their users

    Science.gov (United States)

    van Nes, Floris L.

    2005-01-01

    A new ISO standard for visual displays: "Ergonomic requirements and measurement techniques for electronic visual displays" is soon to be released as a Draft International Standard. The core of the new standard is the part with generic ergonomic requirements for visual displays. Three parts of the standard describe three types of measurements: electro-optical ones, to be used in general; user performance test methods, for innovative displays for which no electro-optical methods exist; and field assessment methods, to be used outside of the laboratory, under the conditions of use at the workplace. The last part of the standard describes five compliance routes and procedures for five different display technologies and contexts of use. A number of choices and problems that standard writers have to face are mentioned. Should a visual display standard be written primarily for young users, with mostly a high visual acuity and in possession of their full accommodative power, wanting to use tiny hand-held displays featuring very small characters ? Or should the standard be focused on the elderly, with their reduction in visual faculties, barring the use of small characters that may irritate or disable such older users ? The question how to put human factors principles in standards sometimes seems a battle between idealists and realists. It therefore is important to strike a balance between different attitudes, backgrounds and interests in a standards writing committee - as indeed happens in ISO/TC 159/SC 4/WG 2, "Visual Display Requirements". The author is convener of this Working Group.

  14. COMMUNICATIONS GROUP

    CERN Multimedia

    L. Taylor

    2012-01-01

      Outreach and Education We are fortunate that our research has captured the public imagination, even though this inevitably puts us under the global media spotlight, as we saw with the Higgs seminar at CERN in December, which had 110,000 distinct webcast viewers. The media interest was huge with 71 media organisations registering to come to CERN to cover the Higgs seminar, which was followed by a press briefing with the DG and Spokespersons. This event resulted in about 2,000 generally positive stories in the global media. For this seminar, the CMS Communications Group prepared up-to-date news and public material, including links to the CMS results, animations and event displays [http://cern.ch/go/Ch8thttp://cern.ch/go/Ch8t]. There were 44,000 page-views on the CMS public website, with the Higgs news article being by far the most popular item. CMS event displays from iSpy are fast becoming the iconic media images, featuring on numerous major news outlets (BBC, CNN, MSN...) as well as in the sci...

  15. Carbamazepine, but not valproate, displays pharmacoresistance in lamotrigine-resistant amygdala kindled rats.

    Science.gov (United States)

    Srivastava, Ajay K; White, H Steve

    2013-03-01

    The voltage gated sodium channel (VGSC) blocker lamotrigine (LTG), when administered during kindling acquisition, leads to the development of resistance to LTG. The present study aimed to assess whether LTG-resistant amygdala-kindled rats display subsequent resistance to the VGSC blocker carbamazepine (CBZ) and the broad-spectrum antiepileptic drug (AED) sodium valproate (VPA). Two groups of male Sprague Dawley rats received either 0.5% methylcellulose (MC) or LTG (5mg/kg, i.p.) 1h before each amygdala kindling stimulation. Treatments were stopped once both the groups were fully kindled. Two days later, both groups were challenged with a higher dose of LTG (15mg/kg, i.p.) to verify LTG-resistance in the experimental group (i.e., LTG-pretreated rats). The efficacy of CBZ and VPA was then evaluated in both groups. A higher dose of LTG blocked fully kindled seizures in the vehicle-treated rats but not seizures in the LTG-treated group. The mean seizure score, of the control group (1.2±0.3) was significantly lower (Pkindling acquisition) (28.5% vs. 62%, respectively). Interestingly, CBZ (10, 20, and 40mg/kg) displayed a dose-dependent anticonvulsant effect in the vehicle-kindled group, but was less effective in LTG-treated animals. In contrast, VPA (300mg/kg) effectively blocked the behavioral seizure and decreased the afterdischarge duration (ADD) in both vehicle and LTG groups. These findings suggest that the LTG-resistant, amygdala-kindled rat may represent a novel model of pharmacoresistant epilepsy.

  16. Higher Education in California

    Science.gov (United States)

    Public Policy Institute of California, 2016

    2016-01-01

    Higher education enhances Californians' lives and contributes to the state's economic growth. But population and education trends suggest that California is facing a large shortfall of college graduates. Addressing this short­fall will require strong gains for groups that have been historically under­represented in higher education. Substantial…

  17. Higher vocational peer psychological counselors group counseling skills training strategy research%高职朋辈心理辅导员团体心理咨询技能培养的策略研究

    Institute of Scientific and Technical Information of China (English)

    高庆春; 李东

    2012-01-01

    the peer counseling in higher vocational colleges has become the psychological health education process indispensable important form. Strengthen the peer psychological counselor training and guidance, and explore, effective ways, improve its operation skills, exert the function of group psychological counseling, and has important significance.%朋辈心理辅导已成为高职院校心理健康教育过程中不可或缺的重要形式。加强朋辈心理辅导员的培训与指导,探索有效途径,提高其操作技能。发挥团体心理咨询的功能,具有重要意义。

  18. Gestures to Intuitively Control Large Displays

    NARCIS (Netherlands)

    Fikkert, F.W.; Vet, van der P.E.; Rauwerda, H.; Breit, T.; Nijholt, A.; Sales Dias, M.; Gibet, S.; Wanderley, M.W.; Bastos, R.

    2009-01-01

    Large displays are highly suited to support discussions in empirical science. Such displays can display project results on a large digital surface to feed the discussion. This paper describes our approach to closely involve multidisciplinary omics scientists in the design of an intuitive display con

  19. 27 CFR 6.55 - Display service.

    Science.gov (United States)

    2010-04-01

    ... Distribution Service § 6.55 Display service. Industry member reimbursements to retailers for setting up product or other displays constitutes paying the retailer for rendering a display service within the meaning... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Display service. 6.55...

  20. 高职院校集团化办学体制机制建设思考%On the construction of group running mechanism system in higher vocational colleges

    Institute of Scientific and Technical Information of China (English)

    刘晴

    2014-01-01

    集团化办学有利于实现教育资源的重组,使教育资源得到最合理、最有效的配置,为了充分发挥集团在办学中的积极作用,高职院校要加快集团化办学体制机制建设,提高高职院校办学水平,促进高职院校的健康、可持续发展。%Collectivization is advantageous to the realization of reorganization of education resources, the educational resources are the most reasonable, effective configuration, in order to give full play to the positive role of group in running schools, vocational colleges should speed up the construction of system of running mechanism, improve the level of higher vocational school, promote the healthy, sustainable development of higher vocational colleges.

  1. 健美操小组教学对高职生焦虑心理的影响%Effects on Higher Vocational Students’ Anxiety by Group Calisthenics Teaching

    Institute of Scientific and Technical Information of China (English)

    李冬莲; 蒙军; 唐东伟

    2014-01-01

    The experimental results show that the group calisthenics teaching method can improve the sports achievement of higher vocational col-lege students, significantly reduce their anxiety level, enhance self-confidence, improve their performance, make better the sensitive interpersonal rela-tionship, improve the aesthetic ability, and shape a strong wil power, hence to further improve the level of the higher vocational col ege students' men-tal health.%健美操小组教学法能提高高职大学生的体育成绩,显著地降低了他们的焦虑水平,增强自信心,提高表现力,改善敏感的人际关系,提高审美能力,培养坚强的毅志品质,进一步提高了高职大学生的心理健康水平。

  2. On Ideological and Political Education of Informal Group in Higher Educational Institution%大学生非正式群体与高校思想政治教育研究

    Institute of Scientific and Technical Information of China (English)

    高丽琴

    2011-01-01

    The informal groups arise from the educational reform in higher institutions and the dormitory regulation on campus. The paper holds that the group poses not only the challenge but also opportunities for ideological and political education in that though organized casually, they are usually cohesive and exclusive.%随着高校教育改革以及大学校园宿舍化管理的实行,大学生非正式群体在高校的出现成为必然趋势,这给高校思想政治教育工作带来机遇的同时也带来了挑战。大学生非正式群体具有结构松散、凝聚力强及排外性等特点,对高校思想政治教育存在正面和负面的影响,也对思想政治工作提出了新的、更高的要求。

  3. Review of Defense Display Research Programs

    Science.gov (United States)

    2001-01-01

    Programs Flat Panel Autostereoscopic N-perspective 3D High Definition DMD Digital Projector Light Piping & Quantum Cavity Displays Solid State Laser...Megapixel Displays • Size Commonality • 67 % Weight Reduction • > 200 sq. in. per Display 20-20 Vision Simulators True 3D , sparse symbols Foldable Display...megapixel 2D and True 3D Display Technology 25M & T3D FY02-FY06 New service thrusts

  4. Recent Trend in Development of Olfactory Displays

    Science.gov (United States)

    Yanagida, Yasuyuki

    An olfactory display is a device that generates scented air with desired concentration of aroma, and delivers it to the user's olfactory organ. In this article, the nature of olfaction is briefly described from the view point of how to configure olfactory displays. Next, component technologies to compose olfactory displays, i.e., making scents and delivering scents, are categorized. Several existing olfactory display systems are introduced to show the current status of research and development of olfactory displays.

  5. Real use or "real cool": adolescents speak out about displayed alcohol references on social networking websites.

    Science.gov (United States)

    Moreno, Megan A; Briner, Leslie R; Williams, Amanda; Walker, Leslie; Christakis, Dimitri A

    2009-10-01

    Adolescents frequently display alcohol references on social networking Websites (SNSs). We conducted focus groups to determine adolescents' interpretations of these displayed alcohol references. Regardless of whether displayed alcohol references represent actual use, adolescents typically interpret these references as representing actual use and acknowledge their potential influence on peer behavior.

  6. Evaluation of stereoscopic 3D displays for image analysis tasks

    Science.gov (United States)

    Peinsipp-Byma, E.; Rehfeld, N.; Eck, R.

    2009-02-01

    In many application domains the analysis of aerial or satellite images plays an important role. The use of stereoscopic display technologies can enhance the image analyst's ability to detect or to identify certain objects of interest, which results in a higher performance. Changing image acquisition from analog to digital techniques entailed the change of stereoscopic visualisation techniques. Recently different kinds of digital stereoscopic display techniques with affordable prices have appeared on the market. At Fraunhofer IITB usability tests were carried out to find out (1) with which kind of these commercially available stereoscopic display techniques image analysts achieve the best performance and (2) which of these techniques achieve a high acceptance. First, image analysts were interviewed to define typical image analysis tasks which were expected to be solved with a higher performance using stereoscopic display techniques. Next, observer experiments were carried out whereby image analysts had to solve defined tasks with different visualization techniques. Based on the experimental results (performance parameters and qualitative subjective evaluations of the used display techniques) two of the examined stereoscopic display technologies were found to be very good and appropriate.

  7. Optical display for radar sensing

    Science.gov (United States)

    Szu, Harold; Hsu, Charles; Willey, Jefferson; Landa, Joseph; Hsieh, Minder; Larsen, Louis V.; Krzywicki, Alan T.; Tran, Binh Q.; Hoekstra, Philip; Dillard, John T.; Krapels, Keith A.; Wardlaw, Michael; Chu, Kai-Dee

    2015-05-01

    Boltzmann headstone S = kB Log W turns out to be the Rosette stone for Greek physics translation optical display of the microwave sensing hieroglyphics. The LHS is the molecular entropy S measuring the degree of uniformity scattering off the sensing cross sections. The RHS is the inverse relationship (equation) predicting the Planck radiation spectral distribution parameterized by the Kelvin temperature T. Use is made of the conservation energy law of the heat capacity of Reservoir (RV) change T Δ S = -ΔE equals to the internal energy change of black box (bb) subsystem. Moreover, an irreversible thermodynamics Δ S > 0 for collision mixing toward totally larger uniformity of heat death, asserted by Boltzmann, that derived the so-called Maxwell-Boltzmann canonical probability. Given the zero boundary condition black box, Planck solved a discrete standing wave eigenstates (equation). Together with the canonical partition function (equation) an average ensemble average of all possible internal energy yielded the celebrated Planck radiation spectral (equation) where the density of states (equation). In summary, given the multispectral sensing data (equation), we applied Lagrange Constraint Neural Network (LCNN) to solve the Blind Sources Separation (BSS) for a set of equivalent bb target temperatures. From the measurements of specific value, slopes and shapes we can fit a set of Kelvin temperatures T's for each bb targets. As a result, we could apply the analytical continuation for each entropy sources along the temperature-unique Planck spectral curves always toward the RGB color temperature display for any sensing probing frequency.

  8. Simulated monitor display for CCTV

    Energy Technology Data Exchange (ETDEWEB)

    Steele, B.J.

    1982-01-01

    Two computer programs have been developed which generate a two-dimensional graphic perspective of the video output produced by a Closed Circuit Television (CCTV) camera. Both programs were primarily written to produce a graphic display simulating the field-of-view (FOV) of a perimeter assessment system as seen on a CCTV monitor. The original program was developed for use on a Tektronix 4054 desktop computer; however, the usefulness of this graphic display program led to the development of a similar program for a Hewlett-Packard 9845B desktop computer. After entry of various input parameters, such as, camera lens and orientation, the programs automatically calculate and graphically plot the locations of various items, e.g., fences, an assessment zone, running men, and intrusion detection sensors. Numerous special effects can be generated to simulate such things as roads, interior walls, or sides of buildings. Other objects can be digitized and entered into permanent memory similar to the running men. With this type of simulated monitor perspective, proposed camera locations with respect to fences and a particular assessment zone can be rapidly evaluated without the costly time delays and expenditures associated with field evaluation.

  9. Market trends in the projection display industry

    Science.gov (United States)

    Dash, Sweta

    2001-03-01

    The projection display industry represents a multibillion- dollar market that includes four distinct technologies. High-volume consumer products and high-value business products drive the market, with different technologies being used in different application markets. The consumer market is dominated by rear CRT technology, especially in the projection TV segment. Rear LCD (liquid crystal display), MEMS/DLP (or Digital Light Processing TM) and LCOS (Liquid-crystal-on-silicon) TVs are slowly emerging as future competitors to rear CRT projectors. Front CRT projectors are also facing challenges from LCD and DLP technology for the home theater market while the business market is completely dominated by front LCD and DLP technology. Three-chip DLP projectors have replaced liquid crystal light valves in large venue applications where projectors have higher light output requirements. In recent years front LCD and LCOS projectors have been increasingly competing with 3-chip DLP projectors especially at the low end of the large venue application market. Within the next five years the projection market will experience very fast growth. Sales and presentation applications, which are the fastest growing applications in the business market, will continue to be the major driving force for the growth for front projectors, and the shift in the consumer market to digital and HDTV products will drive the rear projection market.

  10. The effect of rubber flooring on displaying stereotypies in gilts.

    Science.gov (United States)

    Ostović, Mario; Menčik, Sven; Kabalin, Anamaria Ekert; Gračner, Gordana Gregurić; Vučemilo, Marija; Matković, Kristina; Vukičević, Tajana Trbojević; Grahovac, Jurica; Pavičić, Zeljko

    2015-01-01

    The aim of the study was to assess the effect of rubber mats in service unit on displaying stereotypies in gilts. Four 28-day production cycles in all seasons were observed. Each cycle included 28 gilts housed in gestation stalls with slatted concrete floor, which was covered with adjusted mats for 14 gilts (experimental group), while the remaining 14 gilts served as controls. Display of stereotypies and other behaviours observed, mat manipulation and postural behaviours were estimated by direct 1-hour observation of gilts at 2-minute intervals after morning feed supply on days 1, 8, 15 and 28 of each cycle. During the study period, displaying stereotypies was significantly less frequent (P 0.05 all) between the frequency of displaying stereotypies and the frequency of lying and other postures observed, as well as between the stereotypy display and the air temperature. There was no significant correlation (P > 0.05 all) between the frequency of mat manipulation and displaying stereotypies in total or its particular forms, suggesting that the less pronounced stereotypy display in experimental gilts may have been influenced by factors other than those observed in the present study.

  11. A compliant soft-actuator laterotactile display

    Science.gov (United States)

    Knoop, Espen; Rossiter, Jonathan

    2015-04-01

    Humans are extremely adept at eliciting useful information through touch, and the tactile domain has huge potential for handheld and wearable electronic devices. Smart materials may be central to exploiting this potential. The skin is highly sensitive to laterotactile stimulation, where tactile elements move laterally against the skin, and this modality is well suited for wearable devices. Wearable devices should be soft and compliant, in order to move with the user and be comfortable. We present and characterize a laterotactile display using soft and compliant dielectric elastomer actuators. We carry out an initial psychophysical study to determine the absolute sensitivity threshold of laterotactile stimulation, and find that at low frequencies sensitivity is higher than for normal tactile stimulation. Our results suggest that the mechanoreceptors close to the skin surface (SA1, FA1) have improved sensitivity to laterotactile stimulation. We believe our results lay the foundation for a range of new soft robotic human interface devices using smart materials.

  12. GridOrbit public display

    DEFF Research Database (Denmark)

    Ramos, Juan David Hincapie; Tabard, Aurélien; Bardram, Jakob

    2010-01-01

    We introduce GridOrbit, a public awareness display that visualizes the activity of a community grid used in a biology laboratory. This community grid executes bioin-formatics algorithms and relies on users to donate CPU cycles to the grid. The goal of GridOrbit is to create a shared awareness about...... the research taking place in the biology laboratory. This should promote contribu-tions to the grid, and thereby mediate the appropriation of the grid technology. GridOrbit visualizes the activity in the grid, shows information about the different active projects, and supports a messaging functionality where...... people comment on projects. Our work explores the usage of interactive technologies as enablers for the appropriation of an otherwise invisible infrastructure....

  13. Simplified Night Sky Display System

    Science.gov (United States)

    Castellano, Timothy P.

    2010-01-01

    A document describes a simple night sky display system that is portable, lightweight, and includes, at most, four components in its simplest configuration. The total volume of this system is no more than 10(sup 6) cm(sup 3) in a disassembled state, and weighs no more than 20 kilograms. The four basic components are a computer, a projector, a spherical light-reflecting first surface and mount, and a spherical second surface for display. The computer has temporary or permanent memory that contains at least one signal representing one or more images of a portion of the sky when viewed from an arbitrary position, and at a selected time. The first surface reflector is spherical and receives and reflects the image from the projector onto the second surface, which is shaped like a hemisphere. This system may be used to simulate selected portions of the night sky, preserving the appearance and kinesthetic sense of the celestial sphere surrounding the Earth or any other point in space. These points will then show motions of planets, stars, galaxies, nebulae, and comets that are visible from that position. The images may be motionless, or move with the passage of time. The array of images presented, and vantage points in space, are limited only by the computer software that is available, or can be developed. An optional approach is to have the screen (second surface) self-inflate by means of gas within the enclosed volume, and then self-regulate that gas in order to support itself without any other mechanical support.

  14. The Impact of International Logistics Post Group on Higher Vocational Logistics Teaching%国际物流岗位群对高职物流教学的影响

    Institute of Scientific and Technical Information of China (English)

    潘冬青

    2014-01-01

    随着全球经济一体化发展,国际物流岗位要求的素养和能力相应提高。目前高职院校的物流专业教育教学并不适应这些要求,培养的毕业生难以满足物流岗位的需要。要紧跟国际物流岗位群需求,逐渐完善物流管理课程体系,改革教学模式,确保所培养的物流管理专业人才能够适应社会的需要。%With the development of global economic integration, the literacy and ability requirements of the international logis-tics post are increased accordingly. The current logistics educa-tion and teaching in higher vocational colleges cannot meet these requirements, and graduates can hardly meet the needs of logistics posts. We should keep up with the demands of inter-national logistics post group, gradually improve the logistics management curriculum system, reform the teaching mode, so as to ensure that the logistics management talents trained are able to adapt to the needs of society.

  15. A Study of Group-Based Interactive Learning in Higher Vocational English Class%高职英语课堂小组化互动教学研究

    Institute of Scientific and Technical Information of China (English)

    刘晓华

    2012-01-01

    This paper introduces an empirical study of utilizing group-based interactive teaching strategy in higher vocational English education.The results of this study show that the interactive instruction and strategy practice coupled with portfolio can significantly push English learning and technical knowledge,which is highlighted in vocational education.%本文介绍了一项高职英语小组化互动教学的研究。采用自然教学研究法,以小组活动为载体,进行为期一年的小组互动学习训练。结果显示:多元能力取向的小组化互动教学能有效提高学生的英语学习效能;小组化互动教学彰显语言教学规律,是实现高技能外语人才培养目标的有效途径。

  16. ProPath Display Process Overview

    Data.gov (United States)

    Department of Veterans Affairs — This API displays an overview of the process including the description, goals, associated roles (linked to their detailed information). It also displays all of the...

  17. Holographic Waveguided See-Through Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — To address the NASA need for lightweight, space suit-mounted displays, Luminit proposes a novel Holographic Waveguided See-Through Display. Our proposed Holographic...

  18. Projection/Reflection Heads-up Display

    Data.gov (United States)

    National Aeronautics and Space Administration — To address the NASA need for an EVA information display device, Physical Optics Corporation (POC) proposes to develop a new Projection/Reflection Heads-up Display...

  19. OZ: An Innovative Primary Flight Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The proposed SBIR project will develop OZ, an innovative primary flight display for aircraft. The OZ display, designed from "first principles" of vision science,...

  20. SOLIDFELIX: a transportable 3D static volume display

    Science.gov (United States)

    Langhans, Knut; Kreft, Alexander; Wörden, Henrik Tom

    2009-02-01

    Flat 2D screens cannot display complex 3D structures without the usage of different slices of the 3D model. Volumetric displays like the "FELIX 3D-Displays" can solve the problem. They provide space-filling images and are characterized by "multi-viewer" and "all-round view" capabilities without requiring cumbersome goggles. In the past many scientists tried to develop similar 3D displays. Our paper includes an overview from 1912 up to today. During several years of investigations on swept volume displays within the "FELIX 3D-Projekt" we learned about some significant disadvantages of rotating screens, for example hidden zones. For this reason the FELIX-Team started investigations also in the area of static volume displays. Within three years of research on our 3D static volume display at a normal high school in Germany we were able to achieve considerable results despite minor funding resources within this non-commercial group. Core element of our setup is the display volume which consists of a cubic transparent material (crystal, glass, or polymers doped with special ions, mainly from the rare earth group or other fluorescent materials). We focused our investigations on one frequency, two step upconversion (OFTS-UC) and two frequency, two step upconversion (TFTSUC) with IR-Lasers as excitation source. Our main interest was both to find an appropriate material and an appropriate doping for the display volume. Early experiments were carried out with CaF2 and YLiF4 crystals doped with 0.5 mol% Er3+-ions which were excited in order to create a volumetric pixel (voxel). In addition to that the crystals are limited to a very small size which is the reason why we later investigated on heavy metal fluoride glasses which are easier to produce in large sizes. Currently we are using a ZBLAN glass belonging to the mentioned group and making it possible to increase both the display volume and the brightness of the images significantly. Although, our display is currently

  1. Emerging Large-Screen Display Technology

    Science.gov (United States)

    1992-11-01

    1255, Santa Clara, CA. 25. Williams, R. D., and F. Garcia, 1988, "A Real Time Autostereoscopic Multiplanar 3D Display System," Society for Information...K. Miyaji, 1989, " 3D Display using Laser and Moving Screen, Japan Display 1989, Paper P3-5. 27. Sterling, R. D., R. D. TeKolste, J. M. Haggerty, T. C

  2. Liquid crystal displays for aircraft engineering

    Directory of Open Access Journals (Sweden)

    Kovalenko L. F.

    2009-06-01

    Full Text Available Operating conditions for liquid-crystal displays of aircraft instruments have been examined. Requirements to engineering of a liquid-crystal display for operation in severe environment have been formulated. The implementation options for liquid-crystal matrix illumination have been analyzed in order to ensure the sufficient brightness depending on external illumination of a display screen.

  3. Microfluidics for electronic paper-like displays

    NARCIS (Netherlands)

    Shui, Lingling; Hayes, Robert A.; Jin, Mingliang; Zhang, X.; Zhang, Xiao; Bai, Pengfei; van den Berg, Albert; Zhou, Guofu

    2014-01-01

    Displays are ubiquitous in modern life, and there is a growing need to develop active, full color, video-rate reflective displays that perform well in high-light conditions. The core of display technology is to generate or manipulate light in the visible wavelength. Colored fluids or fluids with

  4. Reconfigurable Full-Page Braille Displays

    Science.gov (United States)

    Garner, H. Douglas

    1994-01-01

    Electrically actuated braille display cells of proposed type arrayed together to form full-page braille displays. Like other braille display cells, these provide changeable patterns of bumps driven by digitally recorded text stored on magnetic tapes or in solid-state electronic memories. Proposed cells contain electrorheological fluid. Viscosity of such fluid increases in strong electrostatic field.

  5. 27 CFR 6.83 - Product displays.

    Science.gov (United States)

    2010-04-01

    ... industry member of giving or selling product displays to a retailer does not constitute a means to induce... costs are excluded. (2) All product displays must bear conspicuous and substantial advertising matter on... address of the retailer may appear on the product displays. (3) The giving or selling of such...

  6. Scanning laser beam displays based on a 2D MEMS

    Science.gov (United States)

    Niesten, Maarten; Masood, Taha; Miller, Josh; Tauscher, Jason

    2010-05-01

    The combination of laser light sources and MEMS technology enables a range of display systems such as ultra small projectors for mobile devices, head-up displays for vehicles, wearable near-eye displays and projection systems for 3D imaging. Images are created by scanning red, green and blue lasers horizontally and vertically with a single two-dimensional MEMS. Due to the excellent beam quality of laser beams, the optical designs are efficient and compact. In addition, the laser illumination enables saturated display colors that are desirable for augmented reality applications where a virtual image is used. With this technology, the smallest projector engine for high volume manufacturing to date has been developed. This projector module has a height of 7 mm and a volume of 5 cc. The resolution of this projector is WVGA. No additional projection optics is required, resulting in an infinite focus depth. Unlike with micro-display projection displays, an increase in resolution will not lead to an increase in size or a decrease in efficiency. Therefore future projectors can be developed that combine a higher resolution in an even smaller and thinner form factor with increased efficiencies that will lead to lower power consumption.

  7. Leveraging network connectivity for quality assurance of clinical display monitors.

    Science.gov (United States)

    Gersten, Jennifer

    2012-01-01

    The VA Midwest Health Care Network, VISN 23, is one of 21 veteran integrated health service networks (VISN) under the Department of Veterans Affairs. There are approximately 300,000 imaging studies generated per year and currently more than 14,000 picture archiving and communication system (PACS) users in VISN 23. Biomedical Engineering Services within VISN 23 coordinates the provision of medical technology support. One emerging technology leverages network connectivity as a method of calibrating and continuously monitoring clinical display monitors in support of PACS. Utilizing a continuous calibration monitoring system, clinical displays can be identified as out of Digital Imaging and Communications in Medicine (DICOM) compliance through a centralized server. The technical group can receive immediate notification via e-mail and respond proactively. Previously, this problem could go unnoticed until the next scheduled preventive maintenance was performed. This system utilizes simple network management protocols (SNMP) and simple mail transfer protocols (SMTP) across a wide area network for real-time alerts from a centralized location. This central server supports and monitors approximately 320 clinical displays deployed across five states. Over the past three years of implementation in VISN 23, the remote calibration and monitoring capability has allowed for more efficient support of clinical displays and has enhanced patient safety by ensuring a consistent display of images on these clinical displays.

  8. ATLAS 13 TeV event displays - 2017 Summer Conferences

    CERN Multimedia

    ATLAS Collaboration

    2017-01-01

    Summer 2017: The ATLAS collaboration released an impressive number of results using data collected at 13 TeV. Some of the corresponding event displays are grouped here for media and press. The reference to the conference note is given in the caption. Read more on ATLAS results with the links provided below.

  9. Laser-based displays: a review.

    Science.gov (United States)

    Chellappan, Kishore V; Erden, Erdem; Urey, Hakan

    2010-09-01

    After the invention of lasers, in the past 50 years progress made in laser-based display technology has been very promising, with commercial products awaiting release to the mass market. Compact laser systems, such as edge-emitting diodes, vertical-cavity surface-emitting lasers, and optically pumped semiconductor lasers, are suitable candidates for laser-based displays. Laser speckle is an important concern, as it degrades image quality. Typically, one or multiple speckle reduction techniques are employed in laser displays to reduce speckle contrast. Likewise, laser safety issues need to be carefully evaluated in designing laser displays under different usage scenarios. Laser beam shaping using refractive and diffractive components is an integral part of laser displays, and the requirements depend on the source specifications, modulation technique, and the scanning method being employed in the display. A variety of laser-based displays have been reported, and many products such as pico projectors and laser televisions are commercially available already.

  10. Group I intron ribozymes

    DEFF Research Database (Denmark)

    Nielsen, Henrik

    2012-01-01

    Group I intron ribozymes constitute one of the main classes of ribozymes and have been a particularly important model in the discovery of key concepts in RNA biology as well as in the development of new methods. Compared to other ribozyme classes, group I intron ribozymes display considerable......, the intronic products of these pathways have the potential to integrate into targets and to form various types of circular RNA molecules. Thus, group I intron ribozymes and associated elements found within group I introns is a rich source of biological phenomena. This chapter provides a strategy and protocols...... for initial characterization of new group I intron ribozymes....

  11. Microspheres in Plasma Display Panels

    Science.gov (United States)

    2006-01-01

    Filling small bubbles of molten glass with gases is just as difficult as it sounds, but the technical staff at NASA is not known to shy away from a difficult task. When Microsphere Systems, Inc. (MSI), of Ypsilanti, Michigan, and Imaging Systems Technology, Inc. (IST), of Toledo, Ohio, were trying to push the limits of plasma displays but were having difficulty with the designs, NASA s Glenn Garrett Morgan Commercialization Initiative (GMCI) assembled key personnel at Glenn Research Center and Ohio State University for a brainstorming session to come up with a solution for the companies. They needed a system that could produce hollow, glass micro-sized spheres (microspheres) that could be filled with a variety of gasses. But the extremely high temperature required to force the micro-sized glass bubbles to form at the tip of a metal nozzle resulted in severe discoloration of the microspheres. After countless experiments on various glass-metal combinations, they had turned to the GMCI for help. NASA experts in advanced metals, ceramics, and glass concluded that a new design approach was necessary. The team determined that what was needed was a phosphate glass composition that would remain transparent, and they went to work on a solution. Six weeks later, using the design tips from the NASA team, Tim Henderson, president of MSI, had designed a new system in which all surfaces in contact with the molten glass would be ceramic instead of metal. Meanwhile, IST was able to complete a Phase I Small Business Innovation Research (SBIR) grant supported by the National Science Foundation (NSF) and supply a potential customer with samples of the microspheres for evaluation as filler materials for high-performance insulations.

  12. Influencing user behaviour with energy information display systems for intelligent homes

    Energy Technology Data Exchange (ETDEWEB)

    Wood, G.; Newborough, M. [Energy Academy, Heriot-Watt University, Edinburgh, Scotland EH14 4AS, (United Kingdom)

    2006-08-01

    This paper considers the design of energy consumption displays from a theoretical standpoint in relation to user-appliance interactions in the home. It presents the main options for display position and discusses what detailed information to display in order to promote energy saving. To guide the designer in making decisions regarding the merits of displaying appliance-specific information (ASI) and grouped appliance information (GAI) around the home, classifications are presented of appliance-associated micro-behaviours and appliance control to end-use relationships. A hybrid display approach is suggested as a most effective solution. (Author)

  13. Digital interface for high-resolution displays

    Science.gov (United States)

    Hermann, David J.; Gorenflo, Ronald L.

    1999-08-01

    Commercial display interfaces are currently transitioning from analog to digital. Although this transition is in the very early stages, the military needs to begin planning their own transition to digital. There are many problems with the analog interface in high-resolution display systems that are solved by changing to a digital interface. Also, display system cost can be lower with a digital interface to a high resolution display. Battelle is under contract with DARPA to develop an advanced Display Interface (ADI) to replace the analog RGB interfaces currently used in high definition workstation displays. The goal is to create a standard digital display interface for military applications that is based on emerging commercial standards. Support for military application- specific functionality is addressed, including display test and control. The main challenges to implementing a digital display interface are described, along with approaches to address the problems. Conceptual ADI architectures are described and contrasted. The current and emerging commercial standards for digital display interfaces are reviewed in detail. Finally, the tasks required to complete the ADI effort are outlined and described.

  14. Higher Biologically Effective Dose of Radiotherapy Is Associated With Improved Outcomes for Locally Advanced Non-Small Cell Lung Carcinoma Treated With Chemoradiation: An Analysis of the Radiation Therapy Oncology Group

    Energy Technology Data Exchange (ETDEWEB)

    Machtay, Mitchell, E-mail: Mitchell.machtay@uhhospitals.org [University Hospitals/Case Western Reserve University, Cleveland, OH (United States); Bae, Kyounghwa [Radiation Therapy Oncology Group (RTOG) Department of Statistics, Philadelphia, PA (United States); Movsas, Benjamin [Henry Ford Hospital, Detroit, MI (United States); Paulus, Rebecca [Radiation Therapy Oncology Group (RTOG) Department of Statistics, Philadelphia, PA (United States); Gore, Elizabeth M. [Medical College of Wisconsin, Milwaukee, WI (United States); Komaki, Ritsuko [M.D. Anderson Cancer Center, Houston, TX (United States); Albain, Kathy [Loyola University Chicago Stritch School of Medicine, Maywood, IL (United States); Sause, William T. [LDS Hospital, Salt Lake City, UT (United States); Curran, Walter J. [Emory University, Atlanta, GA (United States)

    2012-01-01

    Purpose: Patients treated with chemoradiotherapy for locally advanced non-small-cell lung carcinoma (LA-NSCLC) were analyzed for local-regional failure (LRF) and overall survival (OS) with respect to radiotherapy dose intensity. Methods and Materials: This study combined data from seven Radiation Therapy Oncology Group (RTOG) trials in which chemoradiotherapy was used for LA-NSCLC: RTOG 88-08 (chemoradiation arm only), 90-15, 91-06, 92-04, 93-09 (nonoperative arm only), 94-10, and 98-01. The radiotherapeutic biologically effective dose (BED) received by each individual patient was calculated, as was the overall treatment time-adjusted BED (tBED) using standard formulae. Heterogeneity testing was done with chi-squared statistics, and weighted pooled hazard ratio estimates were used. Cox and Fine and Gray's proportional hazard models were used for OS and LRF, respectively, to test the associations between BED and tBED adjusted for other covariates. Results: A total of 1,356 patients were analyzed for BED (1,348 for tBED). The 2-year and 5-year OS rates were 38% and 15%, respectively. The 2-year and 5-year LRF rates were 46% and 52%, respectively. The BED (and tBED) were highly significantly associated with both OS and LRF, with or without adjustment for other covariates on multivariate analysis (p < 0.0001). A 1-Gy BED increase in radiotherapy dose intensity was statistically significantly associated with approximately 4% relative improvement in survival; this is another way of expressing the finding that the pool-adjusted hazard ratio for survival as a function of BED was 0.96. Similarly, a 1-Gy tBED increase in radiotherapy dose intensity was statistically significantly associated with approximately 3% relative improvement in local-regional control; this is another way of expressing the finding that the pool-adjusted hazard ratio as a function of tBED was 0.97. Conclusions: Higher radiotherapy dose intensity is associated with improved local-regional control

  15. Autostereoscopic 3D projection display based on two lenticular sheets

    Institute of Scientific and Technical Information of China (English)

    Lin Qi; Qionghua Wang; Jiangyong Luo; Aihong Wang; Dong Liang

    2012-01-01

    We propose an autostereoscopic three-dimensional (3D) projection display.The display consists of four projectors,a projection screen,and two lenticular sheets.The operation principle and calculation equations are described in detail and the parallax images are corrected by means of homography.A 50-inch autostereoscopic 3D projection display prototype is developed.The normalized luminance distributions of viewing zones from the simulation and the measurement are given.Results agree well with the designed values.The proposed prototype presents full-resolution 3D images similar to the conventional prototype based on two parallax barriers.Moreover,the proposed prototype shows considerably higher brightness and efficiency of light utilization.

  16. Optimal Display of Iceberg Orders

    OpenAIRE

    Cebiroğlu, Gökhan; Horst, Ulrich

    2011-01-01

    We develop a sequential trade model of Iceberg order execution in a limit order book. The Iceberg-trader has the freedom to expose his trading intentions or (partially) shield the true order size against other market participants. Order exposure can cause drastic market reactions (“market impact†) in the end leading to higher transaction costs. On the other hand the Iceberg trader faces a loss-in-priority when he hides his intentions, as most electronic limit order books penalize the usag...

  17. mRNA differential display on gene expression in settlement metamorphosis process of Ruditapes philippinarum larvae

    Institute of Scientific and Technical Information of China (English)

    Lu Sumin; Bao Zhenmin; Hu Jingjie; Hu Xiaoli; Mu Chunhua; Fang Jianguang

    2008-01-01

    The mRNA differential display (DDRT-PCR) technique was adopted to find out the genes related to settlement metamorphosis development process of Ruditapes philippinarum larvae.In this study, we have obtained three hundred and forty-six amplification bands in total from pedivehger larvae, veliger larvae,eye spot larvae and post-larvae.Sixty-five out of three hundred and forty-six bands are distinctly differential display from band pattern, which can be put into four groups, standing for different expression characters.Sixteen differential display bands were cloned, sequenced and analyzed and nine different sequences are obtained in the study.Three sequences have higher similarity to the eDNAs deposited in database and three are very similar to the rDNA of other species, considered as the rDNA of Ruditapes philippinarum.The rest three sequences are found to be novel sequences after analyzed.Their accession numbers are AY916799, AY916798, and AY916797 respectively.We thought the novel sequences are possibly relevant to the early embryo development of Ruditapes philippinarum larvae and can provide some fundamental understandings that are helpful for the improvement of scallop seed raising industry.

  18. Laser-driven polyplanar optic display

    Energy Technology Data Exchange (ETDEWEB)

    Veligdan, J.T.; Biscardi, C.; Brewster, C.; DeSanto, L. [Brookhaven National Lab., Upton, NY (United States). Dept. of Advanced Technology; Beiser, L. [Leo Beiser Inc., Flushing, NY (United States)

    1998-01-01

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. This display screen is 2 inches thick and has a matte-black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. The new display uses a 200 milliwatt green solid-state laser (532 nm) as its optical source. In order to produce real-time video, the laser light is being modulated by a Digital Light Processing (DLP) chip manufactured by Texas Instruments, Inc. A variable astigmatic focusing system is used to produce a stigmatic image on the viewing face of the POD. In addition to the optical design, the authors discuss the DLP chip, the optomechanical design and viewing angle characteristics.

  19. Spectroradiometric characterization of autostereoscopic 3D displays

    Science.gov (United States)

    Rubiño, Manuel; Salas, Carlos; Pozo, Antonio M.; Castro, J. J.; Pérez-Ocón, Francisco

    2013-11-01

    Spectroradiometric measurements have been made for the experimental characterization of the RGB channels of autostereoscopic 3D displays, giving results for different measurement angles with respect to the normal direction of the plane of the display. In the study, 2 different models of autostereoscopic 3D displays of different sizes and resolutions were used, making measurements with a spectroradiometer (model PR-670 SpectraScan of PhotoResearch). From the measurements made, goniometric results were recorded for luminance contrast, and the fundamental hypotheses have been evaluated for the characterization of the displays: independence of the RGB channels and their constancy. The results show that the display with the lower angle variability in the contrast-ratio value and constancy of the chromaticity coordinates nevertheless presented the greatest additivity deviations with the measurement angle. For both displays, when the parameters evaluated were taken into account, lower angle variability consistently resulted in the 2D mode than in the 3D mode.

  20. Evaluating Ambient Displays in the Wild

    DEFF Research Database (Denmark)

    Messeter, Jörn; Molenaar, Daryn

    A prominent issue for evaluating ambient displays has been the conflict between the relative intrusiveness of evaluation methods and the intention to keep the display at the periphery of the user’s attention. There is a general lack of research discussing the difficulties of evaluating ambient...... displays in the wild, and in particular social aspects of use has received little attention. This paper presents a case study of an ambient light display designed for a public setting. Based on results from a non-intrusive in situ evaluation, we argue that viewing ambient displays as features of a broader...... social setting may aid our understanding of issues regarding the evaluation of ambient displays in the wild....

  1. Parallel large data visualization with display walls

    Science.gov (United States)

    Scheidegger, Luiz; Vo, Huy T.; Krüger, Jens; Silva, Cláudio T.; Comba, João L. D.

    2012-01-01

    While there exist popular software tools that leverage the power of arrays of tiled high resolution displays, they usually require either the use of a particular API or significant programming effort to be properly configured. We present PVW (Parallel Visualization using display Walls), a framework that uses display walls for scientific visualization, requiring minimum labor in setup, programming and configuration. PVW works as a plug-in to pipeline-based visualization software, and allows users to migrate existing visualizations designed for a single-workstation, single-display setup to a large tiled display running on a distributed machine. Our framework is also extensible, allowing different APIs and algorithms to be made display wall-aware with minimum effort.

  2. Conceptual Design of Industrial Process Displays

    DEFF Research Database (Denmark)

    Pedersen, C.R.; Lind, Morten

    1999-01-01

    by a simple example from a plant with batch processes. Later the method is applied to develop a supervisory display for a condenser system in a nuclear power plant. The differences between the continuous plant domain of power production and the batch processes from the example are analysed and broad...... categories of display types are proposed. The problems involved in specification and invention of a supervisory display are analysed and conclusions from these problems are made. It is concluded that the design method proposed provides a framework for the progress of the display design and is useful in pin......-pointing the actual problems. The method was useful in reducing the number of existing displays that could fulfil the requirements of the supervision task. The method provided at the same time a framework for dealing with the problems involved in inventing new displays based on structured analysis. However...

  3. Three-dimensional Imaging, Visualization, and Display

    CERN Document Server

    Javidi, Bahram; Son, Jung-Young

    2009-01-01

    Three-Dimensional Imaging, Visualization, and Display describes recent developments, as well as the prospects and challenges facing 3D imaging, visualization, and display systems and devices. With the rapid advances in electronics, hardware, and software, 3D imaging techniques can now be implemented with commercially available components and can be used for many applications. This volume discusses the state-of-the-art in 3D display and visualization technologies, including binocular, multi-view, holographic, and image reproduction and capture techniques. It also covers 3D optical systems, 3D display instruments, 3D imaging applications, and details several attractive methods for producing 3D moving pictures. This book integrates the background material with new advances and applications in the field, and the available online supplement will include full color videos of 3D display systems. Three-Dimensional Imaging, Visualization, and Display is suitable for electrical engineers, computer scientists, optical e...

  4. Matrix-addressable electrochromic display cell

    Science.gov (United States)

    Beni, G.; Schiavone, L. M.

    1981-04-01

    We report an electrochromic display cell with intrinsic matrix addressability. The cell, based on a sputtered iridium oxide film (SIROF) and a tantalum-oxide hysteretic counterelectrode, has electrochromic parameters (i.e., response times, operating voltages, and contrast) similar to those of other SIROF display devices, but in addition, has short-circuit memory and voltage threshold. Memory and threshold are sufficiently large to allow, in principle, multiplexing of electrochromic display panels of large-screen TV pixel size.

  5. Helmet-Mounted Display Design Guide

    Science.gov (United States)

    1997-11-03

    on openStack create menu "CSHMD" set the menuitems of "CSHMD" to "(Main Menu; References;-; Definitions;Display Criteria;Display Formats;Display Modes...34Macintosh" then put ":" into dirSep else put "V’ into dirSep put stackPathO&"Resource"&dirSep into gResPath put 0 into gXRef end openStack on

  6. Future Directions for Astronomical Image Display

    Science.gov (United States)

    Mandel, Eric

    2000-03-01

    In the "Future Directions for Astronomical Image Displav" project, the Smithsonian Astrophysical Observatory (SAO) and the National Optical Astronomy Observatories (NOAO) evolved our existing image display program into fully extensible. cross-platform image display software. We also devised messaging software to support integration of image display into astronomical analysis systems. Finally, we migrated our software from reliance on Unix and the X Window System to a platform-independent architecture that utilizes the cross-platform Tcl/Tk technology.

  7. A computer graphics display technique for the examination of aircraft design data

    Science.gov (United States)

    Talcott, N. A., Jr.

    1981-01-01

    An interactive computer graphics technique has been developed for quickly sorting and interpreting large amounts of aerodynamic data. It utilizes a graphic representation rather than numbers. The geometry package represents the vehicle as a set of panels. These panels are ordered in groups of ascending values (e.g., equilibrium temperatures). The groups are then displayed successively on a CRT building up to the complete vehicle. A zoom feature allows for displaying only the panels with values between certain limits. The addition of color allows a one-time display thus eliminating the need for a display build up.

  8. Proximity and physical navigation in collaborative work with a multi-touch wall-display

    DEFF Research Database (Denmark)

    Jakobsen, Mikkel Rønne; Hornbæk, Kasper

    2012-01-01

    Multi-touch, wall-sized displays afford new forms of collaboration. Yet, most data on collaboration with multi-touch displays come from tabletop settings, where users often sit and where space is a limited resource. We study how two-person groups navigate in relation to a 2.8m!1.2m multi......-touch display with 24.8 megapixels and to each other when solving a sensemaking task on a document collection. The results show that users physically navigate to shift fluently among different parts of the display and between parallel and joint group work....

  9. Ultra-realistic imaging: a new beginning for display holography

    Science.gov (United States)

    Bjelkhagen, Hans I.; Brotherton-Ratcliffe, David

    2014-02-01

    Recent improvements in key foundation technologies are set to potentially transform the field of Display Holography. In particular new recording systems, based on recent DPSS and semiconductor lasers combined with novel recording materials and processing, have now demonstrated full-color analogue holograms of both lower noise and higher spectral accuracy. Progress in illumination technology is leading to a further major reduction in display noise and to a significant increase of the clear image depth and brightness of such holograms. So too, recent progress in 1-step Direct-Write Digital Holography (DWDH) now opens the way to the creation of High Virtual Volume Displays (HVV) - large format full-parallax DWDH reflection holograms having fundamentally larger clear image depths. In a certain fashion HVV displays can be thought of as providing a high quality full-color digital equivalent to the large-format laser-illuminated transmission holograms of the sixties and seventies. Back then, the advent of such holograms led to much optimism for display holography in the market. However, problems with laser illumination, their monochromatic analogue nature and image noise are well cited as being responsible for their failure in reality. Is there reason for believing that the latest technology improvements will make the mark this time around? This paper argues that indeed there is.

  10. Refreshable Braille Displays Using EAP Actuators

    Science.gov (United States)

    Bar-Cohen, Yoseph

    2010-01-01

    Refreshable Braille can help visually impaired persons benefit from the growing advances in computer technology. The development of such displays in a full screen form is a great challenge due to the need to pack many actuators in small area without interferences. In recent years, various displays using actuators such as piezoelectric stacks have become available in commercial form but most of them are limited to one line Braille code. Researchers in the field of electroactive polymers (EAP) investigated methods of using these materials to form full screen displays. This manuscript reviews the state of the art of producing refreshable Braille displays using EAP-based actuators..

  11. Refreshable Braille displays using EAP actuators

    Science.gov (United States)

    Bar-Cohen, Yoseph

    2010-04-01

    Refreshable Braille can help visually impaired persons benefit from the growing advances in computer technology. The development of such displays in a full screen form is a great challenge due to the need to pack many actuators in small area without interferences. In recent years, various displays using actuators such as piezoelectric stacks have become available in commercial form but most of them are limited to one line Braille code. Researchers in the field of electroactive polymers (EAP) investigated methods of using these materials to form full screen displays. This manuscript reviews the state of the art of producing refreshable Braille displays using EAP-based actuators.

  12. PENGARUH DISPLAY PRODUK PADA KEPUTUSAN PEMBELIAN KONSUMEN

    Directory of Open Access Journals (Sweden)

    Ina Melati

    2012-11-01

    Full Text Available Most of ritel outlet recently using product display as a one of their best marketing strategy, the reason is quiet easy to be understood, since consumers are too easy to be teased by those kind of beautiful product display that is being displayed by the retail outlet. The good retail outlets are trying their best to design and make the very good product display, so they can attract more consumers and make them not thinking twice to visit their store and purchase lots of thing. Clearly seeing that an attractive product design is able to influence a consumer to make a buying decision. 

  13. New ultraportable display technology and applications

    Science.gov (United States)

    Alvelda, Phillip; Lewis, Nancy D.

    1998-08-01

    MicroDisplay devices are based on a combination of technologies rooted in the extreme integration capability of conventionally fabricated CMOS active-matrix liquid crystal display substrates. Customized diffraction grating and optical distortion correction technology for lens-system compensation allow the elimination of many lenses and systems-level components. The MicroDisplay Corporation's miniature integrated information display technology is rapidly leading to many new defense and commercial applications. There are no moving parts in MicroDisplay substrates, and the fabrication of the color generating gratings, already part of the CMOS circuit fabrication process, is effectively cost and manufacturing process-free. The entire suite of the MicroDisplay Corporation's technologies was devised to create a line of application- specific integrated circuit single-chip display systems with integrated computing, memory, and communication circuitry. Next-generation portable communication, computer, and consumer electronic devices such as truly portable monitor and TV projectors, eyeglass and head mounted displays, pagers and Personal Communication Services hand-sets, and wristwatch-mounted video phones are among the may target commercial markets for MicroDisplay technology. Defense applications range from Maintenance and Repair support, to night-vision systems, to portable projectors for mobile command and control centers.

  14. Testing Instrument for Flight-Simulator Displays

    Science.gov (United States)

    Haines, Richard F.

    1987-01-01

    Displays for flight-training simulators rapidly aligned with aid of integrated optical instrument. Calibrations and tests such as aligning boresight of display with respect to user's eyes, checking and adjusting display horizon, checking image sharpness, measuring illuminance of displayed scenes, and measuring distance of optical focus of scene performed with single unit. New instrument combines all measurement devices in single, compact, integrated unit. Requires just one initial setup. Employs laser and produces narrow, collimated beam for greater measurement accuracy. Uses only one moving part, double right prism, to position laser beam.

  15. Microencapsulated Electrophoretic Films for Electronic Paper Displays

    Science.gov (United States)

    Amundson, Karl

    2003-03-01

    Despite the dominance of liquid crystal displays, they do not perform some functions very well. While backlit liquid crystal displays can offer excellent color performance, they wash out in bright lighting and suffer from high power consumption. Reflective liquid crystal displays have limited brightness, making these devices challenging to read for long periods of time. Flexible liquid crystal displays are difficult to manufacture and keep stable. All of these attributes (long battery lifetime, bright reflective appearance, compatibility with flexible substrates) are traits that would be found in an ideal electronic paper display - an updateable substitute for paper that could be employed in electronic books, newspapers, and other applications. I will discuss technologies that are being developed for electronic-paper-like displays, and especially on particle-based technologies. A microencapsulated electrophoretic display technology is being developed at the E Ink corporation. This display film offers offer high brightness and an ink-on-paper appearance, compatibility with flexible substrates, and image stability that can lead to very low power consumption. I will present some of the physical and chemical challenges associated with making display films with high performance.

  16. Framework for effective use of multiple displays

    Science.gov (United States)

    Liu, Qiong; Kimber, Don; Zhao, Frank; Huang, Jeffrey

    2005-10-01

    Meeting environments, such as conference rooms, executive briefing centers, and exhibition spaces, are now commonly equipped with multiple displays, and will become increasingly display-rich in the future. Existing authoring/presentation tools such as PowerPoint, however, provide little support for effective utilization of multiple displays. Even using advanced multi-display enabled multimedia presentation tools, the task of assigning material to displays is tedious and distracts presenters from focusing on content. This paper describes a framework for automatically assigning presentation material to displays, based on a model of the quality of views of audience members. The framework is based on a model of visual fidelity which takes into account presentation content, audience members' locations, the limited resolution of human eyes, and display location, orientation, size, resolution, and frame rate. The model can be used to determine presentation material placement based on average or worst case audience member view quality, and to warn about material that would be illegible. By integrating this framework with a previous system for multi-display presentation [PreAuthor, others], we created a tool that accepts PowerPoint and/or other media input files, and automatically generates a layout of material onto displays for each state of the presentation. The tool also provides an interface allowing the presenter to modify the automatically generated layout before or during the actual presentation. This paper discusses the framework, possible application scenarios, examples of the system behavior, and our experience with system use.

  17. Pengaruh Display Produk pada Keputusan Pembelian Konsumen

    Directory of Open Access Journals (Sweden)

    Ina Melati

    2012-10-01

    Full Text Available Most of ritel outlet recently using product display as a one of their best marketing strategy, the reason is quiet easy to be understood, since consumers are too easy to be teased by those kind of beautiful product display that is being displayed by the retail outlet. The good retail outlets are trying their best to design and make the very good product display, so they can attract more consumers and make them not thinking twice to visit their store and purchase lots of thing. Clearly seeing that an attractive product design is able to influence a consumer to make a buying decision.

  18. Display of nuclear medicine imaging studies

    CERN Document Server

    Singh, B; Samuel, A M

    2002-01-01

    Nuclear medicine imaging studies involve evaluation of a large amount of image data. Digital signal processing techniques have introduced processing algorithms that increase the information content of the display. Nuclear medicine imaging studies require interactive selection of suitable form of display and pre-display processing. Static imaging study requires pre-display processing to detect focal defects. Point operations (histogram modification) along with zoom and capability to display more than one image in one screen is essential. This album mode of display is also applicable to dynamic, MUGA and SPECT data. Isometric display or 3-D graph of the image data is helpful in some cases e.g. point spread function, flood field data. Cine display is used on a sequence of images e.g. dynamic, MUGA and SPECT imaging studies -to assess the spatial movement of tracer with time. Following methods are used at the investigator's discretion for inspection of the 3-D object. 1) Display of orthogonal projections, 2) Disp...

  19. Volumetric Three-Dimensional Display Systems

    Science.gov (United States)

    Blundell, Barry G.; Schwarz, Adam J.

    2000-03-01

    A comprehensive study of approaches to three-dimensional visualization by volumetric display systems This groundbreaking volume provides an unbiased and in-depth discussion on a broad range of volumetric three-dimensional display systems. It examines the history, development, design, and future of these displays, and considers their potential for application to key areas in which visualization plays a major role. Drawing substantially on material that was previously unpublished or available only in patent form, the authors establish the first comprehensive technical and mathematical formalization of the field, and examine a number of different volumetric architectures. System level design strategies are presented, from which proposals for the next generation of high-definition predictable volumetric systems are developed. To ensure that researchers will benefit from work already completed, they provide: * Descriptions of several recent volumetric display systems prepared from material supplied by the teams that created them * An abstract volumetric display system design paradigm * An historical summary of 90 years of development in volumetric display system technology * An assessment of the strengths and weaknesses of many of the systems proposed to date * A unified presentation of the underlying principles of volumetric display systems * A comprehensive bibliography Beautifully supplemented with 17 color plates that illustrate volumetric images and prototype displays, Volumetric Three-Dimensional Display Systems is an indispensable resource for professionals in imaging systems development, scientific visualization, medical imaging, computer graphics, aerospace, military planning, and CAD/CAE.

  20. Evolving mobile robots able to display collective behaviors.

    Science.gov (United States)

    Baldassarre, Gianluca; Nolfi, Stefano; Parisi, Domenico

    2003-01-01

    We present a set of experiments in which simulated robots are evolved for the ability to aggregate and move together toward a light target. By developing and using quantitative indexes that capture the structural properties of the emerged formations, we show that evolved individuals display interesting behavioral patterns in which groups of robots act as a single unit. Moreover, evolved groups of robots with identical controllers display primitive forms of situated specialization and play different behavioral functions within the group according to the circumstances. Overall, the results presented in the article demonstrate that evolutionary techniques, by exploiting the self-organizing behavioral properties that emerge from the interactions between the robots and between the robots and the environment, are a powerful method for synthesizing collective behavior.

  1. Stereoscopic displays and applications; Proceedings of the Meeting, Santa Clara, CA, Feb. 12-14, 1990

    Science.gov (United States)

    Merritt, John O. (Editor); Fisher, Scott S. (Editor)

    1990-01-01

    The present conference discusses topics in the fields of stereoscopic displays' user interfaces, three-dimensional (TD) visualization, novel TD displays, and applications of stereoscopic displays. Attention is given to TD cockpit displays, novel computational control techniques for stereo TD displays, characterization of higher-dimensional presentation techniques, volume visualization on a stereoscopic display, and stereoscopic displays for terrain-data base visualization. Also discussed are the experimental design of cyberspaces, a volumetric environment for interactive design of three-dimensional objects, videotape recording of TD TV images, remote manipulator tasks rendered possible by stereo TV, TD endoscopy based on alternating-frame technology, and advancements in computer-generated barrier-strip autostereography.

  2. Effectiveness of Emotional Intelligence Group Training on Anger in Adolescents with Substance-Abusing Fathers

    Science.gov (United States)

    Hojjat, Seyed Kaveh; Rezaei, Mahdi; Namadian, Gholamreza; Hatami, Seyed Esmaeil; Norozi Khalili, Mina

    2017-01-01

    Parental substance abuse is associated with impaired skills and ability to take care of children. Children of substance-abusing parents display higher levels of emotional difficulties. This article shows the effectiveness of emotional intelligence group training on anger in adolescents with substance-abusing fathers. The sample consisted of 60…

  3. Effectiveness of Emotional Intelligence Group Training on Anger in Adolescents with Substance-Abusing Fathers

    Science.gov (United States)

    Hojjat, Seyed Kaveh; Rezaei, Mahdi; Namadian, Gholamreza; Hatami, Seyed Esmaeil; Norozi Khalili, Mina

    2017-01-01

    Parental substance abuse is associated with impaired skills and ability to take care of children. Children of substance-abusing parents display higher levels of emotional difficulties. This article shows the effectiveness of emotional intelligence group training on anger in adolescents with substance-abusing fathers. The sample consisted of 60…

  4. Clinical observation of Esculin and Digitalisglycosides eye drops and acupoint massage on patients with video display terminal asthenopia

    Directory of Open Access Journals (Sweden)

    Qing-He Sun

    2015-05-01

    Full Text Available AIM: To evaluate the efficacy of Esculin and Digitalisglycosides eye drops and acupoint massage alone or combination of both on video display terminal(VDTasthenopia.METHODS: Totally, 224 patients with VDT asthenopia were randomly divided into eye drops group(n=56received the intervention by Esculin and Digitalisglycosides eye drops, acupoint massage group(n=56received the intervention by acupoint massage around the eyes, and combination group(n=56received the intervention by combination of both and control group received the intervention by ocular hygiene instruction. The effect was evaluated after 4wk. The symptoms curative effect index, tear film break-up time(BUT, Schirmer I test(SItand corneal fluorescein staining score were as the indexes of evaluation.RESULTS: The symptoms curative effect index of combination group(78.96±5.29% was higher than that of eye drops group(69.55±6.23% and acupoint massage group(71.15±6.41%, which of after both groups was higher than that of control group(33.01±4.26%(PPPCONCLUSION: Esculin and Digitalisglycosides eye drops and acupoint massage could improve symptoms and ocular physiology in patient with VDT asthenopia, and the effects of the combinative use of both are synergistic.

  5. 23 February 2010 - Polish Under Secretary of State, Ministry of Science and Higher Education, J. Szwed visiting CERN installations with sLHC Project Office T. Kurtyka and Machine Protection and Electrical Integrity Group Leader A. Siemko.

    CERN Multimedia

    Michel Blanc

    2010-01-01

    Tirage 1002023-01: In LHCb experimental area with Machine Protection and Electrical Integrity Group Leader A. Siemko; Mission Counselor M. Cichucka; Counselor to the Minister M. Klimkiewicz, Under Secretary of State J. Szwed; LHCb Collaboration, national group leader, Henryk Niewodniczanski Institut of Nuclear Physics G. Polok, Collaboration Spokesperson A. Golutvin and Delegate to CERN Council A. Zalewska. Tirage 28: Visiting the Computing Centre with IT Department Head F. Hemmer Tirage 49: In CMS Control centre, buiding 354 with Collaboration Spokesperson G. Tonelli and CMS Collaboration, national group leader, University of Warsaw J. Krolikowski. Tirage 62: visiting ALICE exhibition area and counting room with Collaboration Spokesperson J. Schukraft. Tirage 82-99: Under Secretary of State address to the Polish Community Tirage 82: Machine Protection and Electrical Integrity Group Leader A. Siemko Tirage 83: Polish Delegate to CERN Council A. Zalewska. Tirage 85: Directorate Office E. Rondio Tirage 86: ATLA...

  6. 班级团体辅导对改善高职生人际关系的应用研究%Research on the Application of Class Group Counseling to Improve the Interpersonal Relationship of Higher Vocational Students

    Institute of Scientific and Technical Information of China (English)

    郭敏慧; 邓剑虹; 原兰兰

    2015-01-01

    In order to explore the influence of class group counseling on interpersonal communication of vo⁃cational college students, the research selected the sophomores from two different classes in the same major as the research random samples, of which one was enrolled as the experimental group to receive the class group counseling on interpersonal communication six times, the other as the control group without any intervention. The experimental group showed significant differences on College Students ’Interpersonal Comprehensive Diag⁃nostic Scale and Social Avoidance and Distress Scale after the measurement(p<0.05,p<0.001), while the con⁃trol group had no change;The experimental group and control group showed no significant differences before the measurement, but there were significant differences after the measurement(p<0.05,p<0.001). The experimental group presented more satisfaction on group effect. Therefore, the research gets the conclusion that class group counseling can improve the interpersonal communication of college students.%目的:探讨班级团体辅导对改善高职生人际关系的效果。方法:随机抽取某校大二年级同专业两个班学生,其中一个班作为实验组参加6次人际关系团体心理辅导,另一班作为对照组不做任何干预。采用前后测量表评估法和主观评估法检验班级团体辅导效果。结果:实验组在大学生人际关系综合诊断量表(CSICD)和社交回避与苦恼量表(SAD)的前后测比较中,均表现出显著差异(p<0.05,p<0.001),对照组无显著差异;在两量表前测中实验组与对照组均无显著差异,后测中均表现出显著差异(p<0.05,p<0.001)。实验组对团体效果满意度呈现上升趋势。结论:班级团体辅导对改善高职生人际关系具有促进作用。

  7. Display Developer for Firing Room Applications

    Science.gov (United States)

    Bowman, Elizabeth A.

    2013-01-01

    The firing room at Kennedy Space Center (KSC) is responsible for all NASA human spaceflight launch operations, therefore it is vital that all displays within the firing room be properly tested, up-to-date, and user-friendly during a launch. The Ground Main Propulsion System (GMPS) requires a number of remote displays for Vehicle Integration and Launch (VIL) Operations at KSC. My project is to develop remote displays for the GMPS using the Display Services and Framework (DSF) editor. These remote displays will be based on model images provided by GMPS through PowerPoint. Using the DSF editor, the PowerPoint images can be recreated with active buttons associated with the correct Compact Unique Identifiers (CUIs). These displays will be documented in the Software Requirements and Design Specifications (SRDS) at the 90% GMPS Design Review. In the future, these remote displays will be available for other developers to improve, edit, or add on to so that the display may be incorporated into the firing room to be used for launches.

  8. Interruption and Pausing of Public Display Games

    DEFF Research Database (Denmark)

    Feuchtner, Tiare; Walter, Robert; Müller, Jörg

    2016-01-01

    We present a quantitative and qualitative analysis of interruptions of interaction with a public display game, and explore the use of a manual pause mode in this scenario. In previous public display installations we observed users frequently interrupting their interaction. To explore ways of supp...

  9. Additive and subtractive transparent depth displays

    NARCIS (Netherlands)

    Kooi, F.L.; Toet, A.

    2003-01-01

    Image fusion is the generally preferred method to combine two or more images for visual display on a single screen. We demonstrate that perceptual image separation may be preferable over perceptual image fusion for the combined display of enhanced and synthetic imagery. In this context image separat

  10. Assessment of OLED displays for vision research.

    Science.gov (United States)

    Cooper, Emily A; Jiang, Haomiao; Vildavski, Vladimir; Farrell, Joyce E; Norcia, Anthony M

    2013-10-23

    Vision researchers rely on visual display technology for the presentation of stimuli to human and nonhuman observers. Verifying that the desired and displayed visual patterns match along dimensions such as luminance, spectrum, and spatial and temporal frequency is an essential part of developing controlled experiments. With cathode-ray tubes (CRTs) becoming virtually unavailable on the commercial market, it is useful to determine the characteristics of newly available displays based on organic light emitting diode (OLED) panels to determine how well they may serve to produce visual stimuli. This report describes a series of measurements summarizing the properties of images displayed on two commercially available OLED displays: the Sony Trimaster EL BVM-F250 and PVM-2541. The results show that the OLED displays have large contrast ratios, wide color gamuts, and precise, well-behaved temporal responses. Correct adjustment of the settings on both models produced luminance nonlinearities that were well predicted by a power function ("gamma correction"). Both displays have adjustable pixel independence and can be set to have little to no spatial pixel interactions. OLED displays appear to be a suitable, or even preferable, option for many vision research applications.

  11. Teacher Portfolios: Displaying the Art of Teaching

    Science.gov (United States)

    Reese, Susan

    2004-01-01

    A portfolio can convey a teacher's beliefs, knowledge and skills. An artist uses a portfolio to display artistic talent, and a teacher can use his or her portfolio to display teaching talent and teaching style. A teacher's portfolio may be used to obtain new employment, to document teaching accomplishments in order to receive a promotion or tenure…

  12. Methods for Selecting Phage Display Antibody Libraries.

    Science.gov (United States)

    Jara-Acevedo, Ricardo; Diez, Paula; Gonzalez-Gonzalez, Maria; Degano, Rosa Maria; Ibarrola, Nieves; Gongora, Rafael; Orfao, Alberto; Fuentes, Manuel

    2016-01-01

    The selection process aims sequential enrichment of phage antibody display library in clones that recognize the target of interest or antigen as the library undergoes successive rounds of selection. In this review, selection methods most commonly used for phage display antibody libraries have been comprehensively described.

  13. Higher Education in Scandinavia

    DEFF Research Database (Denmark)

    Nielsen, Jørgen Lerche; Andreasen, Lars Birch

    2015-01-01

    Higher education systems around the world have been undergoing fundamental changes through the last 50 years from more narrow self-sustaining universities for the elite and into mass universities, where new groups of students have been recruited and the number of students enrolled has increased d...... an impact on the educational systems in Scandinavia, and what possible futures can be envisioned?......Higher education systems around the world have been undergoing fundamental changes through the last 50 years from more narrow self-sustaining universities for the elite and into mass universities, where new groups of students have been recruited and the number of students enrolled has increased...... dramatically. In adjusting to the role of being a mass educational institution, universities have been challenged on how to cope with external pressures, such as forces of globalization and international markets, increased national and international competition for students and research grants, increased...

  14. A simplified procedure for antibody engineering by yeast surface display: Coupling display levels and target binding by ribosomal skipping.

    Science.gov (United States)

    Grzeschik, Julius; Hinz, Steffen C; Könning, Doreen; Pirzer, Thomas; Becker, Stefan; Zielonka, Stefan; Kolmar, Harald

    2017-02-01

    Yeast surface display is a valuable, widely used method for protein engineering. However, current yeast display applications rely on the staining of epitope tags in order to verify full-length presentation of the protein of interest on the cell surface. We aimed at developing a modified yeast display approach that relies on ribosomal skipping, thereby enabling the translation of two proteins from one open reading frame and, in that manner, generating an intracellular fluorescence signal. This improved setup is based on a 2A sequence that is encoded between the protein to be displayed and a gene for green fluorescent protein (GFP). The intracellular GFP fluorescence signal of yeast cells correlates with full-length protein presentation and omits the need for the immunofluorescence detection of epitope tags. For method validation, shark-derived IgNAR variable domains (vNAR) were subjected to affinity maturation using the 2A-GFP system. Yeast library screening of full-length vNAR variants which were detected via GFP expression yielded the same high-affinity binder that had previously been isolated by our group using the conventional epitope tag-based display format. The presented method obviates the need for additional immunofluorescence cell staining, offering an easy and cost-friendly alternative to conventional epitope tag detections.

  15. Three-dimensional hologram display system

    Science.gov (United States)

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

    2009-01-01

    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.

  16. An interactive multiview 3D display system

    Science.gov (United States)

    Zhang, Zhaoxing; Geng, Zheng; Zhang, Mei; Dong, Hui

    2013-03-01

    The progresses in 3D display systems and user interaction technologies will help more effective 3D visualization of 3D information. They yield a realistic representation of 3D objects and simplifies our understanding to the complexity of 3D objects and spatial relationship among them. In this paper, we describe an autostereoscopic multiview 3D display system with capability of real-time user interaction. Design principle of this autostereoscopic multiview 3D display system is presented, together with the details of its hardware/software architecture. A prototype is built and tested based upon multi-projectors and horizontal optical anisotropic display structure. Experimental results illustrate the effectiveness of this novel 3D display and user interaction system.

  17. Real time speech formant analyzer and display

    Energy Technology Data Exchange (ETDEWEB)

    Holland, George E. (Ames, IA); Struve, Walter S. (Ames, IA); Homer, John F. (Ames, IA)

    1987-01-01

    A speech analyzer for interpretation of sound includes a sound input which converts the sound into a signal representing the sound. The signal is passed through a plurality of frequency pass filters to derive a plurality of frequency formants. These formants are converted to voltage signals by frequency-to-voltage converters and then are prepared for visual display in continuous real time. Parameters from the inputted sound are also derived and displayed. The display may then be interpreted by the user. The preferred embodiment includes a microprocessor which is interfaced with a television set for displaying of the sound formants. The microprocessor software enables the sound analyzer to present a variety of display modes for interpretive and therapeutic used by the user.

  18. Extraction and Analysis of Display Data

    Science.gov (United States)

    Land, Chris; Moye, Kathryn

    2008-01-01

    The Display Audit Suite is an integrated package of software tools that partly automates the detection of Portable Computer System (PCS) Display errors. [PCS is a lap top computer used onboard the International Space Station (ISS).] The need for automation stems from the large quantity of PCS displays (6,000+, with 1,000,000+ lines of command and telemetry data). The Display Audit Suite includes data-extraction tools, automatic error detection tools, and database tools for generating analysis spread sheets. These spread sheets allow engineers to more easily identify many different kinds of possible errors. The Suite supports over 40 independent analyses, 16 NASA Tech Briefs, November 2008 and complements formal testing by being comprehensive (all displays can be checked) and by revealing errors that are difficult to detect via test. In addition, the Suite can be run early in the development cycle to find and correct errors in advance of testing.

  19. 2D/3D switchable displays

    Science.gov (United States)

    Dekker, T.; de Zwart, S. T.; Willemsen, O. H.; Hiddink, M. G. H.; IJzerman, W. L.

    2006-02-01

    A prerequisite for a wide market acceptance of 3D displays is the ability to switch between 3D and full resolution 2D. In this paper we present a robust and cost effective concept for an auto-stereoscopic switchable 2D/3D display. The display is based on an LCD panel, equipped with switchable LC-filled lenticular lenses. We will discuss 3D image quality, with the focus on display uniformity. We show that slanting the lenticulars in combination with a good lens design can minimize non-uniformities in our 20" 2D/3D monitors. Furthermore, we introduce fractional viewing systems as a very robust concept to further improve uniformity in the case slanting the lenticulars and optimizing the lens design are not sufficient. We will discuss measurements and numerical simulations of the key optical characteristics of this display. Finally, we discuss 2D image quality, the switching characteristics and the residual lens effect.

  20. Enhanced spatial-state feedback for night-vision goggle displays

    Science.gov (United States)

    Bachelder, Edward N.; Hansman, R. John, Jr.

    1997-06-01

    A preliminary study was conducted to investigate the use of visual flow cues as an aid to ground and vertical drift awareness during helicopter flight and targeting while using night vision goggles (NVGs). Three displays wee compared: (1) NVG display: simulated NVG image of cockpit and external environment. (2) Overlay display: NVG image with an overlay display but with symbology flow cue field and a surrounding wire-frame globe; (3) Cut-out display: same as the overlay display but with symbology removed from the central region. Three levels of contrast were also compared using each display type. The visual scenery was displayed to subjects using a helmet-mounted virtual reality device that had a 40 by 50 degree field-of-view liquid crystal display. The study involved six pilots. Three tasks were given: (1) Search task: designate enemy targets with a helmet-mounted sight; (2) Hover task: null out all transnational and yaw rates while in a hover; (3) Search/Hover task: perform both Search and Hover tasks simultaneously. These tasks were conducted in a fixed-based helicopter simulator which used the dynamics of a small-scale model helicopter. The following performance measures were collected: (1) Pilot ability to detect and recognize targets; (2) Pilots ability to null transnational and yaw rates; (3) Time scanning the instrument panel. Subjects also rated displays for efficacy in completing the three tasks. Target detection scores conducted during the Search and Search/Hover tasks were highest using the NVG display, followed by the cut-out display. Root-mean-square (RMS) drift rate error was comparable for all display types in the Hover and Hover/Search tasks, however RMS control input activity in all the translational axes was significantly higher in both rate-cueing displays than with the NVG display. From the control input and drift rate time histories it appears that the motion cues were more compelling in the overlay and cut- out displays than those perceived

  1. Social isolation increases social display after priming in Betta splendens but decreases aggressive readiness.

    Science.gov (United States)

    Halperin, J R; Dunham, D W; Ye, S

    1992-12-01

    We socially isolated adult, male Siamese fighting fish for 0 to 7 weeks but avoided sensory deprivation, and then measured aggressive display as the fish responded to a series of novel models. Isolates displayed much more strongly than non-isolates to the last model of the series, and display intensity became monotonically stronger with longer social isolation. By contrast, display to the first model seen after isolation was weaker the longer the social isolation. A second experiment compared responses of fish after three weeks during which controls displayed to a conspecific for two minutes every two days, while isolates saw a complex visual stimulus which did not release display. Again, isolates had depressed display readiness, but higher display rates once they were primed. This result supports the hypothesis that social isolation has two effects on aggressive display in Betta, causing decreasing readiness to display, but leading to greater display rates once fish are 'primed'. We discuss two models which predict these phenomena, and show that one of them suggests a new understanding of the function of motivational increases when aggression is 'dammed up'. Methodological issues relevant for examining the rodent behavior literature in the light of the new model are discussed.

  2. Design and Development of Functionally Effective Human-Machine Interfaces for Firing Room Displays

    Science.gov (United States)

    Cho, Henry

    2013-01-01

    This project involves creating software for support equipment used on the Space l aunch System (SLS). The goal is to create applications and displays that will be used to remotely operate equipment from the firing room and will continue to support the SLS launch vehicle to the extent of its program. These displays include design practices that help to convey information effectively, such as minimizing distractions at normal operating state and displaying intentional distractions during a warning or alarm state. The general practice for creating an operator display is to reduce the detail of unimportant aspects of the display and promote focus on data and dynamic information. These practices include using minimalist design, using muted tones for background colors, using a standard font at a readable text size, displaying alarms visible for Immediate attention, grouping data logically, and displaying data appropriately varying on the type of data. Users of these displays are more likely to stay focused on operating for longer periods by using design practices that reduce eye strain and fatigue. Effective operator displays will improve safety by reducing human errors during operation, which will help prevent catastrophic accidents. This report entails the details of my work on developing remote displays for the Hypergolics ground system. Before developing a prototype display, the design and requirements of the system are outlined and compiled into a document. Then each subsystem has schematic representations drawn tha.t meet the specifications detailed in the document. The schematics are then used as the outline to create display representations of each subsystem. Each display is first tested individually. Then the displays are integrated with a prototype of the master system, and they are tested in a simulated environment then retested in the real environment. Extensive testing is important to ensure the displays function reliably as intended.

  3. Design and Development of Functionally Effective Human-Machine Interfaces for Firing Room Displays

    Science.gov (United States)

    Cho, Henry

    2013-01-01

    This project involves creating software for support equipment used on the Space Launch System (SLS). The goal is to create applications and displays that will be used to remotely operate equipment from the firing room and will continue to support the SLS launch vehicle to the extent of its program. These displays include design practices that help to convey information effectively, such as minimizing distractions at normal operating state and displaying intentional distractions during a warning or alarm state. The general practice for creating an operator display is to reduce the detail of unimportant aspects of the display and promote focus on data and dynamic information. These practices include using minimalist design, using muted tones for background colors, using a standard font at a readable text size, displaying alarms visible for immediate attention, grouping data logically, and displaying data appropriately varying on the type of data. Users of these displays are more likely to stay focused on operating for longer periods by using design practices that reduce eye strain and fatigue. Effective operator displays will improve safety by reducing human errors during operation, which will help prevent catastrophic accidents. This report entails the details of my work on developing remote displays for the Hypergolic fuel servicing system. Before developing a prototype display, the design and requirements of the system are outlined and compiled into a document. Then each subsystem has schematic representations drawn that meet the specifications detailed in the document. The schematics are then used as the outline to create display representations of each subsystem. Each display is first tested individually. Then the displays are integrated with a prototype of the master system, and they are tested in a simulated environment then retested in the real environment. Extensive testing is important to ensure the displays function reliably as intended.

  4. Meibomian gland dysfunction determines the severity of the dry eye conditions in visual display terminal workers.

    Directory of Open Access Journals (Sweden)

    Huping Wu

    Full Text Available OBJECTIVE: To explore meibomian gland dysfunction (MGD may determine the severity of dry eye conditions in visual display terminal (VDT workers. METHODOLOGY: Prospective, case-control study carried out in China.106 eyes of 53 patients (VDT work time >4 hour per day were recruited as the Long time VDT group; 80 eyes of 40 control subjects (VDT work time ≤ 4 hour per day served as the Short time VDT group. A questionnaire of Ocular Surface Disease Index (OSDI and multiple tests were performed. Three dry eye tests: tear film breakup time (BUT, corneal fluorescein staining, Schirmer I test; and three MGD parameters: lid margin abnormality score, meibum expression assessment (meibum score, and meibomian gland dropout degree (meiboscore using Keratograph 5 M. PRINCIPAL FINDINGS: OSDI and corneal fluorescein score were significantly higher while BUT was dramatically shorter in the long time VDT group than the short time VDT group. However, the average of Schirmer tear volumes was in normal ranges in both groups. Interestingly, the three MGD parameters were significantly higher in the long time VDT group than the short time one (P<0.0001. When 52 eyes with Schirmer <10 mm and 54 eyes with Schirmer ≥ 10 mm were separated from the long time VDT workers, no significant differences were found between the two subgroups in OSDI, fluorescein staining and BUT, as well as the three MGD parameters. All three MGD parameters were positively correlated with VDT working time (P<0.0001 and fluorescein scores (P<0.0001, inversely correlated with BUT (P<0.05, but not correlated with Schirmer tear volumes in the VDT workers. CONCLUSIONS: Our findings suggest that a malfunction of meibomian glands is associated with dry eye patients in long term VDT workers with higher OSDI scores whereas some of those patients presenting a normal tear volume.

  5. 基于岗位群的高职商务英语专业职业素养提升%Professional Competence Improvement for Higher Vocational Business English Majors Based on Job Group Analysis

    Institute of Scientific and Technical Information of China (English)

    谭明霞

    2013-01-01

    A higher vocational education aims at cultivating higher skill talents, who are not only of high skills but also of high quality and higher competence. Business English Specialty of higher vocational college should be clearly aware of job requirements, and improves students’professional competence through reform on course teaching, skills training, out-class activities and specialty culture construction, and assessment.%  高职教育培养的是高端技能型人才,这里所指的“高端”不仅仅是高的技术与技能,还包括高素质、高素养等重要内涵。高职商务英语专业应该明确岗位群职业素养要求,从日常课程教学、项目实训、第二课堂、专业文化建设、考评方法改革等方面全面提升学生的综合职业素养。

  6. Recognizing biological motion and emotions from point-light displays in autism spectrum disorders.

    Directory of Open Access Journals (Sweden)

    Evelien Nackaerts

    Full Text Available One of the main characteristics of Autism Spectrum Disorder (ASD are problems with social interaction and communication. Here, we explored ASD-related alterations in 'reading' body language of other humans. Accuracy and reaction times were assessed from two observational tasks involving the recognition of 'biological motion' and 'emotions' from point-light displays (PLDs. Eye movements were recorded during the completion of the tests. Results indicated that typically developed-participants were more accurate than ASD-subjects in recognizing biological motion or emotions from PLDs. No accuracy differences were revealed on two control-tasks (involving the indication of color-changes in the moving point-lights. Group differences in reaction times existed on all tasks, but effect sizes were higher for the biological and emotion recognition tasks. Biological motion recognition abilities were related to a person's ability to recognize emotions from PLDs. However, ASD-related atypicalities in emotion recognition could not entirely be attributed to more basic deficits in biological motion recognition, suggesting an additional ASD-specific deficit in recognizing the emotional dimension of the point light displays. Eye movements were assessed during the completion of tasks and results indicated that ASD-participants generally produced more saccades and shorter fixation-durations compared to the control-group. However, especially for emotion recognition, these altered eye movements were associated with reductions in task-performance.

  7. Recognizing biological motion and emotions from point-light displays in autism spectrum disorders.

    Science.gov (United States)

    Nackaerts, Evelien; Wagemans, Johan; Helsen, Werner; Swinnen, Stephan P; Wenderoth, Nicole; Alaerts, Kaat

    2012-01-01

    One of the main characteristics of Autism Spectrum Disorder (ASD) are problems with social interaction and communication. Here, we explored ASD-related alterations in 'reading' body language of other humans. Accuracy and reaction times were assessed from two observational tasks involving the recognition of 'biological motion' and 'emotions' from point-light displays (PLDs). Eye movements were recorded during the completion of the tests. Results indicated that typically developed-participants were more accurate than ASD-subjects in recognizing biological motion or emotions from PLDs. No accuracy differences were revealed on two control-tasks (involving the indication of color-changes in the moving point-lights). Group differences in reaction times existed on all tasks, but effect sizes were higher for the biological and emotion recognition tasks. Biological motion recognition abilities were related to a person's ability to recognize emotions from PLDs. However, ASD-related atypicalities in emotion recognition could not entirely be attributed to more basic deficits in biological motion recognition, suggesting an additional ASD-specific deficit in recognizing the emotional dimension of the point light displays. Eye movements were assessed during the completion of tasks and results indicated that ASD-participants generally produced more saccades and shorter fixation-durations compared to the control-group. However, especially for emotion recognition, these altered eye movements were associated with reductions in task-performance.

  8. Ergonomic concerns with lightbar guidance displays.

    Science.gov (United States)

    Ima, C S; Mann, D D

    2004-05-01

    This article reviews some ergonomic factors associated with agricultural guidance displays. Any technology or management decision that improves the efficiency of an agricultural operation can be considered an aspect of precision farming. Agricultural guidance displays are one such tool because they help to reduce guidance error (i.e., skipping and overlapping of implements within the field), which result in improper application of crop inputs at increased cost. Although each of the guidance displays currently available functions using a different principle, their key objective is to communicate useful guidance information to the operator of the agricultural machine. The case with which the operator obtains the required information depends on a number of ergonomic factors, such as color perceptibility, flash rate, attentional demand, display size, viewing distance, and height of placement of the display in the cab. Ergonomics can be defined as the application of knowledge to create a safe, comfortable, and effective work environment. Consequently, it is critical to consider ergonomics when designing guidance displays or when locating a display in the tractor cab. Without considering ergonomics, it is unlikely that the efficiency of the human-machine system can be optimized.

  9. Crosstalk in stereoscopic displays: a review

    Science.gov (United States)

    Woods, Andrew J.

    2012-10-01

    Crosstalk, also known as ghosting or leakage, is a primary factor in determining the image quality of stereoscopic three dimensional (3D) displays. In a stereoscopic display, a separate perspective view is presented to each of the observer's two eyes in order to experience a 3D image with depth sensation. When crosstalk is present in a stereoscopic display, each eye will see a combination of the image intended for that eye, and some of the image intended for the other eye-making the image look doubled or ghosted. High levels of crosstalk can make stereoscopic images hard to fuse and lack fidelity, so it is important to achieve low levels of crosstalk in the development of high-quality stereoscopic displays. Descriptive and mathematical definitions of these terms are formalized and summarized. The mechanisms by which crosstalk occurs in different stereoscopic display technologies are also reviewed, including micropol 3D liquid crystal displays (LCDs), autostereoscopic (lenticular and parallax barrier), polarized projection, anaglyph, and time-sequential 3D on LCDs, plasma display panels and cathode ray tubes. Crosstalk reduction and crosstalk cancellation are also discussed along with methods of measuring and simulating crosstalk.

  10. Potential improvements for dual directional view displays.

    Science.gov (United States)

    Mather, Jonathan; Parry Jones, Lesley; Gass, Paul; Imai, Akira; Takatani, Tomoo; Yabuta, Koji

    2014-02-01

    Dual directional view (DDV) displays show different images to different viewers. For example, the driver of a car looking at a central DDV display could view navigation information, while the passenger, looking from a different angle, could be watching a movie. This technology, which has now established itself on the dashboards of high-end Jaguar, Mercedes, and Range Rover cars, is manufactured by Sharp Corporation using a well-known parallax barrier technique. Unfortunately parallax barriers are associated with an inevitable drop in brightness compared with a single view display. A parallax barrier-based DDV display typically has less than half the transmission of a single view display. Here we present a solution to these problems via the use of a combined microlens and parallax barrier system, which can not only boost the brightness by 55% from a parallax barrier-only system but increase the head freedom by 25% and reduce crosstalk also. However, the use of microlenses (which must be positioned between the polarizers of the LCD) can adversely affect the contrast ratio of the display. Careful choice of the LCD mode is therefore required in order to create a DDV display that is both high in brightness and contrast ratio. The use of a single-domain vertically aligned nematic (VAN) liquid crystal (LC) mode, together with a microlens plus parallax barrier system can achieve this with a contrast ratio of 1700∶1 measured at 30° to normal incidence.

  11. Touch sensitive electrorheological fluid based tactile display

    Science.gov (United States)

    Liu, Yanju; Davidson, Rob; Taylor, Paul

    2005-12-01

    A tactile display is programmable device whose controlled surface is intended to be investigated by human touch. It has a great number of potential applications in the field of virtual reality and elsewhere. In this research, a 5 × 5 tactile display array including electrorheological (ER) fluid has been developed and investigated. Force responses of the tactile display array have been measured while a probe was moved across the upper surface. The purpose of this was to simulate the action of touch performed by human finger. Experimental results show that the sensed surface information could be controlled effectively by adjusting the voltage activation pattern imposed on the tactels. The performance of the tactile display is durable and repeatable. The touch sensitivity of this ER fluid based tactile display array has also been investigated in this research. The results show that it is possible to sense the touching force normal to the display's surface by monitoring the change of current passing through the ER fluid. These encouraging results are helpful for constructing a new type of tactile display based on ER fluid which can act as both sensor and actuator at the same time.

  12. [Odor sensing system and olfactory display].

    Science.gov (United States)

    Nakamoto, Takamichi

    2014-01-01

    In this review, an odor sensing system and an olfactory display are introduced into people in pharmacy. An odor sensing system consists of an array of sensors with partially overlapping specificities and pattern recognition technique. One of examples of odor sensing systems is a halitosis sensor which quantifies the mixture composition of three volatile sulfide compounds. A halitosis sensor was realized using a preconcentrator to raise sensitivity and an electrochemical sensor array to suppress the influence of humidity. Partial least squares (PLS) method was used to quantify the mixture composition. The experiment reveals that the sufficient accuracy was obtained. Moreover, the olfactory display, which present scents to human noses, is explained. A multi-component olfactory display enables the presentation of a variety of smells. The two types of multi-component olfactory display are described. The first one uses many solenoid valves with high speed switching. The valve ON frequency determines the concentration of the corresponding odor component. The latter one consists of miniaturized liquid pumps and a surface acoustic wave (SAW) atomizer. It enables the wearable olfactory display without smell persistence. Finally, the application of the olfactory display is demonstrated. Virtual ice cream shop with scents was made as a content of interactive art. People can enjoy harmony among vision, audition and olfaction. In conclusion, both odor sensing system and olfactory display can contribute to the field of human health care.

  13. Transparent 3D display for augmented reality

    Science.gov (United States)

    Lee, Byoungho; Hong, Jisoo

    2012-11-01

    Two types of transparent three-dimensional display systems applicable for the augmented reality are demonstrated. One of them is a head-mounted-display-type implementation which utilizes the principle of the system adopting the concave floating lens to the virtual mode integral imaging. Such configuration has an advantage in that the threedimensional image can be displayed at sufficiently far distance resolving the accommodation conflict with the real world scene. Incorporating the convex half mirror, which shows a partial transparency, instead of the concave floating lens, makes it possible to implement the transparent three-dimensional display system. The other type is the projection-type implementation, which is more appropriate for the general use than the head-mounted-display-type implementation. Its imaging principle is based on the well-known reflection-type integral imaging. We realize the feature of transparent display by imposing the partial transparency to the array of concave mirror which is used for the screen of reflection-type integral imaging. Two types of configurations, relying on incoherent and coherent light sources, are both possible. For the incoherent configuration, we introduce the concave half mirror array, whereas the coherent one adopts the holographic optical element which replicates the functionality of the lenslet array. Though the projection-type implementation is beneficial than the head-mounted-display in principle, the present status of the technical advance of the spatial light modulator still does not provide the satisfactory visual quality of the displayed three-dimensional image. Hence we expect that the head-mounted-display-type and projection-type implementations will come up in the market in sequence.

  14. Comparison of Color LCD and Medical-grade Monochrome LCD Displays in Diagnostic Radiology

    OpenAIRE

    2007-01-01

    In diagnostic radiology, medical-grade monochrome displays are usually recommended because of their higher luminance. Standard color displays can be used as a less expensive alternative, but have a lower luminance. The aim of the present study was to compare image quality for these two types of displays. Images of a CDRAD contrast-detail phantom were read by four radiologists using a 2-megapixel (MP) color display (143 cd/m2 maximum luminance) as well as 2-MP (295 cd/m2) and 3-MP monochrome d...

  15. Memory effect in ac plasma displays

    Science.gov (United States)

    Szlenk, K.; Obuchowicz, E.

    1993-10-01

    The bistable or `memory' mode of operation of an ac plasma display panel is presented. The difference between dc and ac plasma panel operation from the point of view of memory function is discussed. The graphic ac plasma display with thin film Cr-Cu-Cr electrodes was developed in OBREP and its basic parameters are described. It consists of 36 X 59 picture elements, its outer dimensions are: 76 X 52 mm2 and the screen size is: 49 X 30 mm2. The different dielectric glass materials were applied as dielectric layers and the influence of the properties of these materials on display parameters and memory function was investigated.

  16. Embedded systems for controlling LED matrix displays

    Science.gov (United States)

    Marghescu, Cristina; Drumea, Andrei

    2016-12-01

    LED matrix displays are a common presence in everyday life - they can be found in trains, buses, tramways, office information tables or outdoor media. The structure of the display unit is similar for all these devices, a matrix of light emitting diodes coupled between row and column lines, but there are many options for the display controller that switches these lines. Present paper analyzes different types of embedded systems that can control the LED matrix, based on single board computers, on microcontrollers with different peripheral devices or with programmable logic devices like field programmable gate arrays with implemented soft processor cores. Scalability, easiness of implementation and costs are analyzed for all proposed solutions.

  17. Motion parallax in immersive cylindrical display systems

    Science.gov (United States)

    Filliard, N.; Reymond, G.; Kemeny, A.; Berthoz, A.

    2012-03-01

    Motion parallax is a crucial visual cue produced by translations of the observer for the perception of depth and selfmotion. Therefore, tracking the observer viewpoint has become inevitable in immersive virtual (VR) reality systems (cylindrical screens, CAVE, head mounted displays) used e.g. in automotive industry (style reviews, architecture design, ergonomics studies) or in scientific studies of visual perception. The perception of a stable and rigid world requires that this visual cue be coherent with other extra-retinal (e.g. vestibular, kinesthetic) cues signaling ego-motion. Although world stability is never questioned in real world, rendering head coupled viewpoint in VR can lead to the perception of an illusory perception of unstable environments, unless a non-unity scale factor is applied on recorded head movements. Besides, cylindrical screens are usually used with static observers due to image distortions when rendering image for viewpoints different from a sweet spot. We developed a technique to compensate in real-time these non-linear visual distortions, in an industrial VR setup, based on a cylindrical screen projection system. Additionally, to evaluate the amount of discrepancies tolerated without perceptual distortions between visual and extraretinal cues, a "motion parallax gain" between the velocity of the observer's head and that of the virtual camera was introduced in this system. The influence of this artificial gain was measured on the gait stability of free-standing participants. Results indicate that, below unity, gains significantly alter postural control. Conversely, the influence of higher gains remains limited, suggesting a certain tolerance of observers to these conditions. Parallax gain amplification is therefore proposed as a possible solution to provide a wider exploration of space to users of immersive virtual reality systems.

  18. Display depth analyses with the wave aberration for the auto-stereoscopic 3D display

    Science.gov (United States)

    Gao, Xin; Sang, Xinzhu; Yu, Xunbo; Chen, Duo; Chen, Zhidong; Zhang, Wanlu; Yan, Binbin; Yuan, Jinhui; Wang, Kuiru; Yu, Chongxiu; Dou, Wenhua; Xiao, Liquan

    2016-07-01

    Because the aberration severely affects the display performances of the auto-stereoscopic 3D display, the diffraction theory is used to analyze the diffraction field distribution and the display depth through aberration analysis. Based on the proposed method, the display depth of central and marginal reconstructed images is discussed. The experimental results agree with the theoretical analyses. Increasing the viewing distance or decreasing the lens aperture can improve the display depth. Different viewing distances and the LCD with two lens-arrays are used to verify the conclusion.

  19. 团体辅导在高校学生工作中的运用%Application of Group Counseling in Handling Student Af-fairs in Higher Education

    Institute of Scientific and Technical Information of China (English)

    郭翀

    2013-01-01

      团体辅导不仅是一门以心理学为基础的理论,也是一种助人技术。本文以武汉商业服务学院的一次团体辅导为例,探讨将这一技术运用在大学生工作中的可行性及优越性。%Group counseling is not only a kind of specific psycho-logical theory but also a type of technology. This paper takes one certain group counseling held in Wuhan Commercial Service College for example to analyses the feasibility and superiority of its entrance to student affairs as a new model in the new times.

  20. 辽宁省高职教育集团化模式特色分析及优化%Analysis and optimization on the Comparison of Running Higher Vocational Education Group Liaoning Province

    Institute of Scientific and Technical Information of China (English)

    张究立

    2012-01-01

    Group education is an important way and necessary choice to suit for market economic system,co-operation of developing studying and producing,improving the education level,achieve better and faster of development of vocational education.through the contrast of vocational education group,seek the reference side of vocational education group in China,find out the problems,and put forward some suggestions.%高职教育集团化办学,是适应社会主义市场经济体制、推进产学研合作、提高办学水平、实现高等职业教育又快又好发展的重要途径和必然选择。通过职教集团诸多方面的分析,求解可供借鉴的经验,找出我国职教集团所面临的问题,提出一些切实可行的解决建议。

  1. Compressive multi-mode superresolution display

    KAUST Repository

    Heide, Felix

    2014-01-01

    Compressive displays are an emerging technology exploring the co-design of new optical device configurations and compressive computation. Previously, research has shown how to improve the dynamic range of displays and facilitate high-quality light field or glasses-free 3D image synthesis. In this paper, we introduce a new multi-mode compressive display architecture that supports switching between 3D and high dynamic range (HDR) modes as well as a new super-resolution mode. The proposed hardware consists of readily-available components and is driven by a novel splitting algorithm that computes the pixel states from a target high-resolution image. In effect, the display pixels present a compressed representation of the target image that is perceived as a single, high resolution image. © 2014 Optical Society of America.

  2. High Resolution Autostereoscopic Cockpit Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — During this Phase II program Dimension Technologies Inc. (DTI) proposes to design and build an autostereoscopic (glasses-free 3D) LCD based aircraft cockpit display...

  3. Projection/Reflection Heads-up Display

    Data.gov (United States)

    National Aeronautics and Space Administration — To address the NASA need for an extravehicular activity (EVA) information display device, Physical Optics Corporation (POC) proposes to advance development of a new...

  4. Night Vision Device and Cockpit Displays

    Data.gov (United States)

    Federal Laboratory Consortium — The Night Vision Device and Cockpit Display labevaluates night vision devices and certifies them for use in the fleet. Lab functions supported include: Analysis of...

  5. Precarious manhood and displays of physical aggression.

    Science.gov (United States)

    Bosson, Jennifer K; Vandello, Joseph A; Burnaford, Rochelle M; Weaver, Jonathan R; Arzu Wasti, S

    2009-05-01

    The results of three experiments demonstrate that physically aggressive displays are part of men's cultural script for restoring threatened gender status. In Studies 1 and 2, challenges to men's gender status elicited heightened physically aggressive displays, including punching a pad with greater force and selecting an aggressive boxing activity over a nonaggressive puzzle activity. Study 3 established that a public display of aggressive readiness reduced men's anxiety-related cognitions in the wake of a gender threat. This suggests that aggressive displays may function to downregulate negative affect when manhood has been threatened. The discussion considers past research on gender and physical aggression in light of the authors' thesis that manhood, relative to womanhood, is culturally defined as a precarious status that must be actively, even aggressively, defended.

  6. Emerging Technologies of Liquid Crystal Displays

    Institute of Scientific and Technical Information of China (English)

    Sin-Doo Lee; Chang-Jae Yu; Jae-Hong Park; Min-Sik Jung

    2003-01-01

    The general features and the emerging technologies of liquid crystal displays are described from the viewpoints of wide viewing and fast response technologies. The device applications of liquid crystals for optical communications are also described.

  7. Fluorescent protein integrated white LEDs for displays

    Science.gov (United States)

    Press, Daniel Aaron; Melikov, Rustamzhon; Conkar, Deniz; Nur Firat-Karalar, Elif; Nizamoglu, Sedat

    2016-11-01

    The usage time of displays (e.g., TVs, mobile phones, etc) is in general shorter than their functional life time, which worsens the electronic waste (e-waste) problem around the world. The integration of biomaterials into electronics can help to reduce the e-waste problem. In this study, we demonstrate fluorescent protein integrated white LEDs to use as a backlight source for liquid crystal (LC) displays for the first time. We express and purify enhanced green fluorescent protein (eGFP) and monomeric Cherry protein (mCherry), and afterward we integrate these proteins as a wavelength-converter on a blue LED chip. The protein-integrated backlight exhibits a high luminous efficacy of 248 lm/Wopt and the area of the gamut covers 80% of the NTSC color gamut. The resultant colors and objects in the image on the display can be well observed and distinguished. Therefore, fluorescent proteins show promise for display applications.

  8. White constancy method for mobile displays

    Science.gov (United States)

    Yum, Ji Young; Park, Hyun Hee; Jang, Seul Ki; Lee, Jae Hyang; Kim, Jong Ho; Yi, Ji Young; Lee, Min Woo

    2014-03-01

    In these days, consumer's needs for image quality of mobile devices are increasing as smartphone is widely used. For example, colors may be perceived differently when displayed contents under different illuminants. Displayed white in incandescent lamp is perceived as bluish, while same content in LED light is perceived as yellowish. When changed in perceived white under illuminant environment, image quality would be degraded. Objective of the proposed white constancy method is restricted to maintain consistent output colors regardless of the illuminants utilized. Human visual experiments are performed to analyze viewers'perceptual constancy. Participants are asked to choose the displayed white in a variety of illuminants. Relationship between the illuminants and the selected colors with white are modeled by mapping function based on the results of human visual experiments. White constancy values for image control are determined on the predesigned functions. Experimental results indicate that propsed method yields better image quality by keeping the display white.

  9. Bioadsorption strategies with yeast molecular display technology.

    Science.gov (United States)

    Shibasaki, Seiji; Ueda, Mitsuyoshi

    2014-01-01

    Molecular display techniques using microbial cell surfaces have been widely developed in the past twenty years, and are useful tools as whole cell catalysts for various applications such as bioconversion, bioremediation, biosensing, and the screening system of protein libraries. Furthermore, different types of microbial cells among eukaryotic and prokaryotic strains have been investigated for their use in surface display technologies. Recently, several kinds of protein-displaying yeasts have been utilized as bioadsorbents in this platform technology. In particular, these trials have successfully expanded the possibility of applications to metal binding, affinity purification, and receptor-ligand interaction by using the yeast cell surface. In this mini review, we describe the general principles of molecular display technology using yeast cells and its applications, with a particular focus on bioadsorption.

  10. [Review of visual display system in flight simulator].

    Science.gov (United States)

    Xie, Guang-hui; Wei, Shao-ning

    2003-06-01

    Visual display system is the key part and plays a very important role in flight simulators and flight training devices. The developing history of visual display system is recalled and the principle and characters of some visual display systems including collimated display systems and back-projected collimated display systems are described. The future directions of visual display systems are analyzed.

  11. ICU nurses' evaluations of integrated information displays on user satisfaction and perceived mental workload.

    Science.gov (United States)

    Koch, Sven H; Westenskow, Dwayne; Weir, Charlene; Agutter, Jim; Haar, Maral; Görges, Matthias; Liu, David; Staggers, Nancy

    2012-01-01

    Consolidated information from multiple sources (patient monitors, electronic medical records, infusion pumps, ventilators, medication references) may improve nurses' work and patient safety. Objective. Two hypotheses were tested, that integrated information displays (a) improve nurses' satisfaction and (b) lower perceived mental workload. Methods. In a counter-balanced, repeated measures design (integrated vs. traditional display) 12 ICU nurses performed realistic tasks using both display types. Results. Nurses' user interaction satisfaction was higher with the integrated display and it received more positive comments. Nurses' mean perceived mental workload scores were also lower, having significant differences in effort and frustration dimensions. A lower mental workload may reduce errors and improve treatment times. Integrated information displays have great promise, but technological factors such as bidirectional device communication must be addressed if these displays are to achieve their potential for improving patient safety.

  12. Tiled large-screen three-dimensional display consisting of frameless multi-view display modules.

    Science.gov (United States)

    Takaki, Yasuhiro; Tokoro, Masayuki; Hirabayashi, Kenji

    2014-03-24

    To realize large-screen three-dimensional (3D) displays, frameless multi-view display modules are arranged two-dimensionally. This paper proposes a multi-view display module in which a multi-view flat-panel display is projected onto a screen of the module to provide a frameless screen. The display module consists of a multi-view flat-panel display, an imaging lens, an aperture, a screen lens, and a vertical diffuser. Prototype display modules were constructed having a screen size of 27.3 in., a 3D resolution of 320 × 200, and 144 viewpoints. Four modules were tiled vertically to provide a screen size of 62.4 in. Distortions in the screen imaging and viewpoint generation were corrected.

  13. Routing and advanced display technologies within STOMPM

    Science.gov (United States)

    Mittu, Ranjeev; Uhlmann, Jeffrey K.; McCune, Justin

    1998-08-01

    This paper will discuss research conducted at the Naval Research Laboratory in the area of automated routing, advanced 3D displays and novel interface techniques for interacting with those displays. This research has culminated in the development of the strike optimized mission planing module (STOMPM). The STOMPM testbed incorporates new technologies/results in the aforementioned areas to address the deficiencies in current systems and advance the state of the art in military planing systems.

  14. Beacon data acquisition and display system

    Science.gov (United States)

    Skogmo, David G.; Black, Billy D.

    1991-01-01

    A system for transmitting aircraft beacon information received by a secondary surveillance radar through telephone lines to a remote display includes a digitizer connected to the radar for preparing a serial file of data records containing position and identification information of the beacons detected by each sweep of the radar. This information is transmitted through the telephone lines to a remote computer where it is displayed.

  15. Multiple male traits interact: attractive bower decorations facilitate attractive behavioural displays in satin bowerbirds.

    Science.gov (United States)

    Patricelli, Gail L; Uy, J Albert C; Borgia, Gerald

    2003-11-22

    Sexually selected male courtship displays often involve multiple behavioural and physical traits, but little is known about the function of different traits in mate choice. Here, we examine female courtship behaviours to learn how male traits interact to influence female mating decisions. In satin bowerbirds (Ptilonorhynchus violaceus), successful males give highly aggressive, intense behavioural displays without startling females. Males do this by modulating their displays in response to female crouching, which signals the display intensity that females will tolerate without being startled. Females typically visit multiple males for multiple courtships before choosing a mate, and females show differing tolerance for intense displays during their first courtship with each male. We test three hypotheses that may explain this: (i) familiarity with the courting male; (ii) the order of the courtship in mate-searching; and (iii) the attractiveness of the courting male. We found that females are more tolerant of intense displays during first courtships with attractive males; this increased female tolerance may allow attractive males to give higher intensity courtship displays that further enhance their attractiveness. We then examined why this is so, finding evidence that females are less likely to be startled by males with better physical displays (bower decorations), and this reduced startling then contributes to male courtship success. This role of physical displays in facilitating behavioural displays suggests a novel mechanism by which multiple physical and behavioural traits may influence female choice.

  16. Large-scale autostereoscopic outdoor display

    Science.gov (United States)

    Reitterer, Jörg; Fidler, Franz; Saint Julien-Wallsee, Ferdinand; Schmid, Gerhard; Gartner, Wolfgang; Leeb, Walter; Schmid, Ulrich

    2013-03-01

    State-of-the-art autostereoscopic displays are often limited in size, effective brightness, number of 3D viewing zones, and maximum 3D viewing distances, all of which are mandatory requirements for large-scale outdoor displays. Conventional autostereoscopic indoor concepts like lenticular lenses or parallax barriers cannot simply be adapted for these screens due to the inherent loss of effective resolution and brightness, which would reduce both image quality and sunlight readability. We have developed a modular autostereoscopic multi-view laser display concept with sunlight readable effective brightness, theoretically up to several thousand 3D viewing zones, and maximum 3D viewing distances of up to 60 meters. For proof-of-concept purposes a prototype display with two pixels was realized. Due to various manufacturing tolerances each individual pixel has slightly different optical properties, and hence the 3D image quality of the display has to be calculated stochastically. In this paper we present the corresponding stochastic model, we evaluate the simulation and measurement results of the prototype display, and we calculate the achievable autostereoscopic image quality to be expected for our concept.

  17. A new type of multiview display

    Science.gov (United States)

    Jurk, Silvio; Kuhlmey, Mathias; de la Barré, René

    2015-03-01

    The common architecture of multi-view autostereoscopic displays assigns a nominal viewing distance. The design affects the convergence of the visible rays at a nominal viewing distance where diamond shaped viewing zones are created. In contrast to this approach, the authors present a new design strategy departing from the geometric relations of common 3D display designs. They show that a beam emitted from a sub-pixel should be rendered with an individual camera direction determined by an algorithm. This algorithm also uses, besides the parameters of the display design, the desired viewing distance and the allowed increments of the camera angle. This enables very flexible designs of autostereoscopic displays. The main difference from the common multiview display is that its design approach enables a continued viewing zone without the usually diamond shaped sweet spots. The algorithm for controlling the rendering and the multiplexing is generic, as well as for integral and multiview design approaches using an image splitter raster. The paper introduces it for autostereoscopic displays with horizontal parallax.

  18. Methodologies for the evaluation of CRT displays

    Energy Technology Data Exchange (ETDEWEB)

    Blackman, H.S.

    1986-01-01

    This paper presents the results of a series of experiments that have been conducted by the Human Factors Research Branch for the purpose of developing objective methods that will be used to evaluate the effectiveness of cathode ray tube (CRT) generated displays in improving reactor operator performance. The results of this work can provide a basis for the United States Nuclear Regulatory Commission (USNRC) to objectively evaluate specific licensee-developed display designs. The following methods have been developed: (1) Psychophysics - short exposure of static display types were presented to subjects who were tasked to report status of a given parameter; (2) Multidimensional Rating Scale - paper and pencil instrument employed by subjects to rate the features of a display type across a variety of psychological dimensions; (3) Checklist Evaluation - a paper and pencil instrument employed by subjects to assess particular display types according to a set of human engineering criteria; (4) Noninteractive Evaluation - a formal experiment where the subjects were requested to identify dynamic simulated transients using various display types; and (5) Interactive Evaluation - similar to the noninteractive, but the subjects interacted with the simulator using a touch screen to mitigate transient events.

  19. Dual redundant display in bubble canopy applications

    Science.gov (United States)

    Mahdi, Ken; Niemczyk, James

    2010-04-01

    Today's cockpit integrator, whether for state of the art military fast jet, or piston powered general aviation, is striving to utilize all available panel space for AMLCD based displays to enhance situational awareness and increase safety. The benefits of a glass cockpit have been well studied and documented. The technology used to create these glass cockpits, however, is driven by commercial AMLCD demand which far outstrips the combined worldwide avionics requirements. In order to satisfy the wide variety of human factors and environmental requirements, large area displays have been developed to maximize the usable display area while also providing necessary redundancy in case of failure. The AMLCD has been optimized for extremely wide viewing angles driven by the flat panel TV market. In some cockpit applications, wide viewing cones are desired. In bubble canopy cockpits, however, narrow viewing cones are desired to reduce canopy reflections. American Panel Corporation has developed AMLCD displays that maximize viewing area, provide redundancy, while also providing a very narrow viewing cone even though commercial AMLCD technology is employed suitable for high performance AMLCD Displays. This paper investigates both the large area display architecture with several available options to solve redundancy as well as beam steering techniques to also limit canopy reflections.

  20. [Peptide phage display in biotechnology and biomedicine].

    Science.gov (United States)

    Kuzmicheva, G A; Belyavskaya, V A

    2016-07-01

    To date peptide phage display is one of the most common combinatorial methods used for identifying specific peptide ligands. Phage display peptide libraries containing billions different clones successfully used for selection of ligands with high affinity and selectivity toward wide range of targets including individual proteins, bacteria, viruses, spores, different kind of cancer cells and variety of nonorganic targets (metals, alloys, semiconductors etc.) Success of using filamentous phage in phage display technologies relays on the robustness of phage particles and a possibility to genetically modify its DNA to construct new phage variants with novel properties. In this review we are discussing characteristics of the most known non-commercial peptide phage display libraries of different formats (landscape libraries in particular) and their successful applications in several fields of biotechnology and biomedicine: discovery of peptides with diagnostic values against different pathogens, discovery and using of peptides recognizing cancer cells, trends in using of phage display technologies in human interactome studies, application of phage display technologies in construction of novel nano materials.

  1. The silent salesman: an observational study of personal tobacco pack display at outdoor café strips in Australia.

    Science.gov (United States)

    Wakefield, Melanie A; Zacher, Meghan; Bayly, Megan; Brennan, Emily; Dono, Joanne; Miller, Caroline; Durkin, Sarah J; Scollo, Michelle M

    2014-07-01

    We sought to determine the relative frequency and nature of personal display of cigarette packs by smokers in two Australian cities where 30% front-of-pack and 90% back-of-pack health warnings have been used since 2006 and comprehensive tobacco marketing restrictions apply. An observational study counted patrons, active smokers and tobacco packs at cafés, restaurants and bars with outdoor seating. Pack orientation and use of cigarette cases were also noted. Overall, 18954 patrons, 1576 active smokers and 2153 packs were observed, meaning that one out of every 12.0 patrons was actively smoking, and one of every 8.8 patrons displayed a pack. Packs were more frequently observed in lower socio-economic neighbourhoods, reflecting the higher prevalence of smoking in those regions. Packs were displayed less often in venues where children were present, suggesting a greater tendency not to smoke around children. Most packs (81.4%) were oriented face-up, permitting prominent brand display. Only 1.5% of observed packs were cigarette cases, and 4.2% of packs were concealed by another item, such as a phone or wallet. Tobacco packs are frequently seen on table-tops in café strips, providing many opportunities for other patrons and passers-by to be incidentally exposed to cigarette brand names and imagery. Use of cigarette cases is rare, suggesting that smokers eventually habituate to pictorial warnings on branded packs and/or find repeated decanting of each newly purchased branded pack into a case to be inconvenient. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  2. Reversible and irreversible higher-order cycloaddition reactions of polyolefins with a multiple-bonded heavier group 13 alkene analogue: contrasting the behavior of systems with π-π, π-π*, and π-n+ frontier molecular orbital symmetry.

    Science.gov (United States)

    Caputo, Christine A; Guo, Jing-Dong; Nagase, Shigeru; Fettinger, James C; Power, Philip P

    2012-04-25

    The heavier group 13 element alkene analogue, digallene Ar(iPr(4))GaGaAr(iPr(4)) (1) [Ar(iPr(4)) = C(6)H(3)-2,6-(C(6)H(3)-2,6-(i)Pr(2))(2)], has been shown to react readily in [n + 2] (n = 6, 4, 2 + 2) cycloaddition reactions with norbornadiene and quadricyclane, 1,3,5,7-cyclooctatetraene, 1,3-cyclopentadiene, and 1,3,5-cycloheptatriene to afford the heavier element deltacyclane species Ar(iPr(4))Ga(C(7)H(8))GaAr(iPr(4)) (2), pseudoinverse sandwiches Ar(iPr(4))Ga(C(8)H(8))GaAr(iPr(4)) (3, 3(iso)), and polycyclic compounds Ar(iPr(4))Ga(C(5)H(6))GaAr(iPr(4)) (4) and Ar(iPr(4))Ga(C(7)H(8))GaAr(iPr(4)) (5, 5(iso)), respectively, under ambient conditions. These reactions are facile and may be contrasted with other all-carbon versions, which require transition-metal catalysis or forcing conditions (temperature, pressure), or with the reactions of the corresponding heavier group 14 species Ar(iPr(4))EEAr(iPr(4)) (E = Ge, Sn), which give very different product structures. We discuss several mechanistic possibilities, including radical- and non-radical-mediated cyclization pathways. These mechanisms are consistent with the improved energetic accessibility of the LUMO of the heavier group 13 element multiple bond in comparison with that of a simple alkene or alkyne. We show that the calculated frontier molecular orbitals (FMOs) of Ar(iPr(4))GaGaAr(iPr(4)) are of π-π symmetry, allowing this molecule to engage in a wider range of reactions than permitted by the usual π-π* FMOs of C-C π bonds or the π-n(+) FMOs of heavier group 14 alkyne analogues.

  3. Autonomic Nervous System Responses Can Reveal Visual Fatigue Induced by 3D Displays

    Directory of Open Access Journals (Sweden)

    Eui Chul Lee

    2013-09-01

    Full Text Available Previous research has indicated that viewing 3D displays may induce greater visual fatigue than viewing 2D displays. Whether viewing 3D displays can evoke measureable emotional responses, however, is uncertain. In the present study, we examined autonomic nervous system responses in subjects viewing 2D or 3D displays. Autonomic responses were quantified in each subject by heart rate, galvanic skin response, and skin temperature. Viewers of both 2D and 3D displays showed strong positive correlations with heart rate, which indicated little differences between groups. In contrast, galvanic skin response and skin temperature showed weak positive correlations with average difference between viewing 2D and 3D. We suggest that galvanic skin response and skin temperature can be used to measure and compare autonomic nervous responses in subjects viewing 2D and 3D displays.

  4. Crystal families and systems in higher dimensions, and geometrical symbols of their point groups. I. Crystal families in five-dimensional space with two-, three-, four- and sixfold symmetries.

    Science.gov (United States)

    Veysseyre, R; Weigel, D; Phan, Th

    2008-11-01

    The aim of this paper and of the following one [Weigel, Phan & Veysseyre (2008). Acta Cryst. A64, 687-697] is to complete the list of the Weigel-Phan-Veysseyre (WPV) symbols of the point groups of space E5 that was started in previous papers and in two reports of an IUCr Subcommittee on the Nomenclature of n-Dimensional Crystallography. In this paper, some crystal families of space E5 are studied. The cells of these are right hyperprisms with as a basis either two squares, or two hexagons, or a square and a hexagon. If the basis is made up of two squares, the two families are the (monoclinic di squares)-al family (No. XVI) and the (di squares)-al family (No. XIX). If the basis is made up of two hexagons, the two families are the (monoclinic di hexagons)-al family (No. XVII) and the (di hexagons)-al family (No. XXI). If the basis is made up of one square and one hexagon, the family is the (square hexagon)-al family (No. XX). In order to link space E5 to spaces E2, E3 and E4, some results published in previous papers are recalled. In fact, most of the symbols of the point groups of space E5 can be deduced from the symbols of the four, six and 23 crystal families of spaces E2, E3 and E4, respectively.

  5. Higher Education in Scandinavia

    DEFF Research Database (Denmark)

    Nielsen, Jørgen Lerche; Andreasen, Lars Birch

    2015-01-01

    dramatically. In adjusting to the role of being a mass educational institution, universities have been challenged on how to cope with external pressures, such as forces of globalization and international markets, increased national and international competition for students and research grants, increased...... an impact on the educational systems in Scandinavia, and what possible futures can be envisioned?......Higher education systems around the world have been undergoing fundamental changes through the last 50 years from more narrow self-sustaining universities for the elite and into mass universities, where new groups of students have been recruited and the number of students enrolled has increased...

  6. Higher Education in Scandinavia

    DEFF Research Database (Denmark)

    Nielsen, Jørgen Lerche; Andreasen, Lars Birch

    2015-01-01

    Higher education systems around the world have been undergoing fundamental changes through the last 50 years from more narrow self-sustaining universities for the elite and into mass universities, where new groups of students have been recruited and the number of students enrolled has increased...... dramatically. In adjusting to the role of being a mass educational institution, universities have been challenged on how to cope with external pressures, such as forces of globalization and international markets, increased national and international competition for students and research grants, increased...... an impact on the educational systems in Scandinavia, and what possible futures can be envisioned?...

  7. Higher Representations Duals

    DEFF Research Database (Denmark)

    Sannino, Francesco

    2010-01-01

    We uncover novel solutions of the 't Hooft anomaly matching conditions for scalarless gauge theories with matter transforming according to higher dimensional representations of the underlying gauge group. We argue that, if the duals exist, they are gauge theories with fermions transforming...... according to the defining representation of the dual gauge group. The resulting conformal windows match the one stemming from the all-orders beta function results when taking the anomalous dimension of the fermion mass to be unity which are also very close to the ones obtained using the Schwinger......-Dyson approximation. We use the solutions to gain useful insight on the conformal window of the associated electric theory. A consistent picture emerges corroborating previous results obtained via different analytic methods and in agreement with first principle lattice explorations....

  8. Monocular display unit for 3D display with correct depth perception

    Science.gov (United States)

    Sakamoto, Kunio; Hosomi, Takashi

    2009-11-01

    A study of virtual-reality system has been popular and its technology has been applied to medical engineering, educational engineering, a CAD/CAM system and so on. The 3D imaging display system has two types in the presentation method; one is a 3-D display system using a special glasses and the other is the monitor system requiring no special glasses. A liquid crystal display (LCD) recently comes into common use. It is possible for this display unit to provide the same size of displaying area as the image screen on the panel. A display system requiring no special glasses is useful for a 3D TV monitor, but this system has demerit such that the size of a monitor restricts the visual field for displaying images. Thus the conventional display can show only one screen, but it is impossible to enlarge the size of a screen, for example twice. To enlarge the display area, the authors have developed an enlarging method of display area using a mirror. Our extension method enables the observers to show the virtual image plane and to enlarge a screen area twice. In the developed display unit, we made use of an image separating technique using polarized glasses, a parallax barrier or a lenticular lens screen for 3D imaging. The mirror can generate the virtual image plane and it enlarges a screen area twice. Meanwhile the 3D display system using special glasses can also display virtual images over a wide area. In this paper, we present a monocular 3D vision system with accommodation mechanism, which is useful function for perceiving depth.

  9. The availability of snack food displays that may trigger impulse purchases in Melbourne supermarkets

    Directory of Open Access Journals (Sweden)

    Thornton Lukar E

    2012-03-01

    Full Text Available Abstract Background Supermarkets play a major role in influencing the food purchasing behaviours of most households. Snack food exposures within these stores may contribute to higher levels of consumption and ultimately to increasing levels of obesity, particularly within socioeconomically disadvantaged neighbourhoods. We aimed to examine the availability of snack food displays at checkouts, end-of-aisle displays and island displays in major supermarket chains in the least and most socioeconomically disadvantaged neighbourhoods of Melbourne. Methods Within-store audits of 35 Melbourne supermarkets. Supermarkets were sampled from the least and most socioeconomically disadvantaged suburbs within 30 km of the Melbourne CBD. We measured the availability of crisps, chocolate, confectionery, and soft drinks (diet and regular at the checkouts, in end-of-aisle displays, and in island bin displays. Results Snack food displays were most prominent at checkouts with only five stores not having snack foods at 100% of their checkouts. Snack foods were also present at a number of end-of-aisle displays (at both the front (median 38% and back (median 33% of store, and in island bin displays (median number of island displays: 7; median total circumference of island displays: 19.4 metres. Chocolate items were the most common snack food item on display. There was no difference in the availability of these snack food displays by neighbourhood disadvantage. Conclusions As a result of the high availability of snack food displays, exposure to snack foods is almost unavoidable in Melbourne supermarkets, regardless of levels of neighbourhood socioeconomic disadvantage. Results of this study could promote awareness of the prominence of unhealthy food items in chain-brand supermarkets outlets.

  10. Scream-embrace displays in wild black-horned capuchin monkeys.

    Science.gov (United States)

    Lynch Alfaro, Jessica

    2008-06-01

    Reintroduction of capuchin monkeys (Cebus apella) into their social group in captivity can elicit sirena screams and embraces. Captive scream-embrace displays are male biased, and females never perform sirena screams. One hypothesis is that scream-embrace displays serve a tension-reduction or reconciliatory function between males with conflicting interests. Alternatively, these displays may function to maintain strong affiliative bonds between friendly male dyads. Scream and/or embrace displays in wild Brazilian black-horned capuchins were analyzed for social and ecological contexts, behavioral components, and individuals involved. Seventy-two displays were observed during the 199-day study period. Among the 66 displays for which both members could be identified by sex, there were 42 occurrences of male-male dyads, 17 of male-female dyads, and seven of female-female dyads. Scream-embrace dyads were male-male pairs significantly more often than expected from group membership, and the alpha male was the only male to engage in scream-embrace displays with females. Female-female pairs did embrace, but never emitted sirena screams. Displays most commonly occurred in "reunion" contexts, primarily the reuniting of subgroups after hours or days out of contact, but also after intergroup encounters, and across groups in "intergroup" displays. Displays were rare, but socially contagious, and subgroup reunions could elicit multiple displays in rapid succession. Although the occurrence of screams and embraces was positively correlated, both behaviors also occurred independently, and their functions may be different. Male sirena screams may be honest advertisements of united alliances, directed toward a third party, whereas the embrace may be a risky affiliative signal, directed primarily within the dyad.

  11. The Marketing of Higher Education.

    Science.gov (United States)

    Brooker, George; Noble, Michael

    1985-01-01

    Formal college and university marketing programs are challenging to develop and implement because of the complexity of the marketing mix, the perceived inappropriateness of a traditional marketing officer, the number of diverse groups with input, the uniqueness of higher education institutions, and the difficulty in identifying higher education…

  12. Class-II neurons display a higher degree of stochastic synchronization than class-I neurons.

    Science.gov (United States)

    Marella, Sashi; Ermentrout, G Bard

    2008-04-01

    We describe the relationship between the shape of the phase-resetting curve (PRC) and the degree of stochastic synchronization observed between a pair of uncoupled general oscillators receiving partially correlated Poisson inputs in addition to inputs from independent sources. We use perturbation methods to derive an expression relating the shape of the PRC to the probability density function (PDF) of the phase difference between the oscillators. We compute various measures of the degree of synchrony and cross correlation from the PDF's and use the same to compare and contrast differently shaped PRCs, with respect to their ability to undergo stochastic synchronization. Since the shape of the PRC depends on underlying dynamical details of the oscillator system, we utilize the results obtained from the analysis of general oscillator systems to study specific models of neuronal oscillators. It is shown that the degree of stochastic synchronization is controlled both by the firing rate of the neuron and the membership of the PRC (type I or type II). It is also shown that the circular variance for the integrate and fire neuron and the generalized order parameter for a hippocampal interneuron model have a nonlinear relationship to the input correlation.

  13. Partners' Empathy Increases Pain Ratings: Effects of Perceived Empathy and Attachment Style on Pain Report and Display

    Science.gov (United States)

    Hurter, Sarah; Paloyelis, Yannis; de C. Williams, Amanda C.; Fotopoulou, Aikaterini

    2014-01-01

    Pain can be influenced by its social context. We aimed to examine under controlled experimental conditions how empathy from a partner and personal attachment style affect pain report, tolerance, and facial expressions of pain. Fifty-four participants, divided into secure, anxious, and avoidant attachment style groups, underwent a cold pressor task with their partners present. We manipulated how much empathy the participants perceived that their partners had for them. We observed a significant main effect of perceived empathy on pain report, with greater pain reported in the high perceived empathy condition. No such effects were found for pain tolerance or facial display. We also found a significant interaction of empathy with attachment style group, with the avoidant group reporting and displaying less pain than the secure and the anxious groups in the high perceived empathy condition. No such findings were observed in the low empathy condition. These results suggest that empathy from one's partner may influence pain report beyond behavioral reactions. In addition, the amount of pain report and expression that people show in high empathy conditions depends on their attachment style. Perspective Believing that one's partner feels high empathy for one's pain may lead individuals to rate the intensity of pain as higher. Individual differences in attachment style moderate this empathy effect. PMID:24953886

  14. Preparation of Panel and Charged Particles for Electrophoretic Display

    Science.gov (United States)

    Choi, Hyung Suk; Park, Jin Woo; Park, Lee Soon; Lee, Jung Kyung; Han, Yoon Soo; Kwon, Younghwan

    Studies on the formulation of photosensitive paste for transparent soft mold press (TSMP) method have been performed. With the optimum formulation of the photosensitive paste the box-type barrier rib with good flexibility and high solvent resistance was fabricated, suitable for the panel material of the electrophoretic display. Cationically-charged white particles were prepared by using TiO2 nanoparticles, silane coupling agent with amino groups, dispersant and acetic acid. The cationically charged TiO2 particles exhibited 74.09 mV of zeta potential and 3.11 × 10-5 cm2/Vs of mobility. Electrophoretic display fabricated with the charged TiO2 particles exhibited 10 V of low driving voltage and maximum contrast ratio (5.3/1) at 30 V.

  15. Do female cancer patients display better survival rates compared with males? Analysis of the Korean National Registry data, 2005-2009.

    Directory of Open Access Journals (Sweden)

    Kyu-Won Jung

    Full Text Available BACKGROUND: Sex differences have been reported in the prognosis of certain cancers. In this study, we investigated whether Korean females display better survival rates compared with male patients for solid tumor sites. METHODS: We analyzed data from the Korean National Cancer Incidence Database from 599,288 adult patients diagnosed with solid cancers between 2005 and 2009. Patients were followed until December 2010. We applied a relative excess risk (RER model adjusting for year of follow-up, age at diagnosis, and stage at diagnosis. RESULTS: For all solid cancer sites combined, women displayed an 11% lower risk of death compared to men (RER 0.89; 95% CI 0.88-0.90 after adjusting for year of follow-up, age, stage, and case mix. Women showed significantly lower RERs for the following sites: head/neck, esophagus, small intestine, liver, nasal cavities, lung, bone/cartilages, melanoma of skin, soft tissue, brain and CNS, and thyroid. In contrast, women displayed a poorer prognosis than did men for colorectal, laryngeal, kidney and bladder cancer. However, the survival gaps between men and women narrowed by increase in age; female patients over 75 years of age displayed a 3% higher RER of death compared with males in this age group. CONCLUSIONS: Female cancer patients display an improved survival for the majority of solid tumor sites, even after adjustment for age and stage. Age at diagnosis was the major contributor to the women's survival advantage.

  16. Identifying Suitable Projection Parameters and Display Configurations for Mobile True-3D Displays

    OpenAIRE

    Serrano, Marcos; Hildebrandt, Dale; Subramanian, Sriram; Irani, Pourang

    2014-01-01

    International audience; We present a two-part exploration on mobile true-3D displays, i.e. displaying volumetric 3D content in mid-air. We first identify and study the parameters of a mobile true-3D projection, in terms of the projection's distance to the phone, angle to the phone, display volume and position within the display. We identify suitable parameters and constraints, which we propose as requirements for developing mobile true-3D systems. We build on the first outcomes to explore met...

  17. Polarity effect in electrovibration for tactile display.

    Science.gov (United States)

    Kaczmarek, Kurt A; Nammi, Krishnakant; Agarwal, Abhishek K; Tyler, Mitchell E; Haase, Steven J; Beebe, David J

    2006-10-01

    Electrovibration is the tactile sensation of an alternating potential between the human body and a smooth conducing surface when the skin slides over the surface and where the current is too small to stimulate sensory nerves directly. It has been proposed as a high-density tactile display method, for example to display pictographic information to persons who are blind. Previous models for the electrovibration transduction mechanism are based on a parallel-plate capacitor in which the electrostatic force is insensitive to polarity. We present experimental data showing that electrovibratory perceptual sensitivity to positive pulses is less than that for negative or biphasic pulses and propose that this disparity may be due to the asymmetric electrical properties of human skin. We furthermore propose using negative pulses for insulated tactile displays based on electrovibration because their sensory thresholds were found to be more stable than for waveforms incorporating positive pulses.

  18. The design of electronic map displays

    Science.gov (United States)

    Aretz, Anthony J.

    1991-01-01

    This paper presents a cognitive analysis of a pilot's navigation task and describes an experiment comparing a new map display that employs the principle of visual momentum with the two traditional approaches, track-up and north-up. The data show that the advantage of a track-up alignment is its congruence with the egocentered forward view; however, the inconsistency of the rotating display hinders development of a cognitive map. The stability of a north-up alignment aids the acquisition of a cognitive map, but there is a cost associated with the mental rotation of the display to a track-up alignment for tasks involving the ego-centered forward view. The data also show that the visual momentum design captures the benefits and reduces the costs associated with the two traditional approaches.

  19. Optical scanning holography for stereoscopic display

    Science.gov (United States)

    Liu, Jung-Ping; Wen, Hsuan-Hsuan

    2016-10-01

    Optical Scanning Holography (OSH) is a scanning-type digital holographic recording technique. One of OSH's most important properties is that the OSH can record an incoherent hologram, which is free of speckle and thus is suitable for the applications of holographic display. The recording time of a scanning hologram is proportional to the sampling resolution. Hence the viewing angle as well as the resolution of a scanning hologram is limited for avoid too long recording. As a result, the viewing angle is not large enough for optical display. To solve this problem, we recorded two scanning holograms at different viewing angles. The two holograms are synthesized to a single stereoscopic hologram with two main viewing angles. In displaying, two views at the two main viewing angles are reconstructed. Because both views contain full-depth-resolved 3D scenes, the problem of accommodation conflict in conventional stereogram is avoided.

  20. Characterising laser beams with liquid crystal displays

    Science.gov (United States)

    Dudley, Angela; Naidoo, Darryl; Forbes, Andrew

    2016-02-01

    We show how one can determine the various properties of light, from the modal content of laser beams to decoding the information stored in optical fields carrying orbital angular momentum, by performing a modal decomposition. Although the modal decomposition of light has been known for a long time, applied mostly to pattern recognition, we illustrate how this technique can be implemented with the use of liquid-crystal displays. We show experimentally how liquid crystal displays can be used to infer the intensity, phase, wavefront, Poynting vector, and orbital angular momentum density of unknown optical fields. This measurement technique makes use of a single spatial light modulator (liquid crystal display), a Fourier transforming lens and detector (CCD or photo-diode). Such a diagnostic tool is extremely relevant to the real-time analysis of solid-state and fibre laser systems as well as mode division multiplexing as an emerging technology in optical communication.

  1. Issues in defense training systems immersive displays

    Science.gov (United States)

    Gaylord, Philip

    2006-05-01

    Display technology for DOD immersive projector-based flight training systems are at a crossroads as CRT technology slowly disappears from the market place. From the DOD perspective, emerging technologies arrive poorly matched to satisfy training needs. The DOD represents a minority voice in the marketplace. Current issues include: Satisfying requirements for black level, brightness and contrast ratio, Establishing standard metrics for resolution, system performance and reliability, Obtaining maintainability and self-calibration in multi-channel arrays, Reducing screen cross-reflection in wrap-around immersive display arrays. Laser, DLP, and LCOS projector systems are compared for their current acceptance and problems in defense flight training systems. General requirements of visual display systems are discussed and contrasted for flight trainers for low flyers (helicopters) high flyers (tactical aircraft) in real-time immersive, networked systems. FLIR and NVG simulation techniques are described.

  2. Interacting on and around Large Displays

    DEFF Research Database (Denmark)

    Markussen, Anders

    of content that reside outside the display boundaries, taking advantage of users’ perceived location of off-screen content. Off-Limits was found to provide significant benefits over touch-based interaction. The results show that an extension of interactions beyond the boundaries of the display can increase......), a previously successfully text entry method for touch- and pen-based input, to work as a technique for mid-air text entry. With a text entry rate of 20.6 WPM after 10 sessions of text entry, the mid-air WGK provided faster text entry rates than previously evaluated methods for mid-air text entry. An improved....... To improve understanding of the differences between input modalities for large displays, the mid-air WGK was compared to a touch-based functionally equivalent WGK. The touch-based keyboard was found to be significantly faster than the mid-air WGK, indicating that touch based interaction may be preferable...

  3. Pilot Preferences on Displayed Aircraft Control Variables

    Science.gov (United States)

    Trujillo, Anna C.; Gregory, Irene M.

    2013-01-01

    The experiments described here explored how pilots want available maneuver authority information transmitted and how this information affects pilots before and after an aircraft failure. The aircraft dynamic variables relative to flight performance were narrowed to energy management variables. A survey was conducted to determine what these variables should be. Survey results indicated that bank angle, vertical velocity, and airspeed were the preferred variables. Based on this, two displays were designed to inform the pilot of available maneuver envelope expressed as bank angle, vertical velocity, and airspeed. These displays were used in an experiment involving control surface failures. Results indicate the displayed limitations in bank angle, vertical velocity, and airspeed were helpful to the pilots during aircraft surface failures. However, the additional information did lead to a slight increase in workload, a small decrease in perceived aircraft flying qualities, and no effect on aircraft situation awareness.

  4. Higher prices in Jamaica.

    Science.gov (United States)

    1982-03-01

    Price increases in the Jamaica CSM program went into effect on August 31, 1981. The program began in 1975. While the need for higher prices has been under discussion for the past 3 years, this is the 1st time the requisite approval from the Jamaica Price Commission has been obtained. The Jamaica National Family Planning Board (JNFPB) reports that the Panther 3-pack (condom) is up US$0.15 to US$0.30. Each Perle package (oral contraceptive) was increased by US$0.20. Single cycle Perle now sells for US$0.50, and 3-pack Perle sells for US$1.10. The 6-year price stagnation experienced by the CSM program resulted in a decreasing operational budget as program costs continued to rise. Marketing costs alone during this period escalated by 100-300%. For example, Panther pop-up display cartons cost the project US 16U each in 1975. By 1979 the same product cost US 49U. Newspaper advertisements have increased from the 1975 cost of US$68.00 to nearly $200.00 per placement. The overall inflation rate in Jamaica during the last 5 years has averaged more than 20% annually. In the face of these rising costs, outlet expansion for Perle has been prevented, wholesaler margins have been unavailable, and new retailer training has been discontinued. It is projected that the new prices will result in an annual increased revenues of US$80,000 which will be used to reinstate these essential marketing activities. The JNFPB is also planning to introduce a Panther 12-pack and Panther strips to the CSM product line. According to Marketing Manager Aston Evans, "We believe the public is now ready for this type of packaging" which is scheduled to be available soon. Panther is presently only available in a 3-pack, but annual sales have been steady. The new 12-pack will be stocked on supermarket shelves to provide higher product visibility and wider distribution. The selling price has been set as US$1.20 and is expected to yield a 25% increase in sales during the 1st year. A complete sales promotion

  5. Bioadsorption of cadmium ion by cell surface-engineered yeasts displaying metallothionein and hexa-His

    Energy Technology Data Exchange (ETDEWEB)

    Kuroda, K.; Ueda, M. [Lab. of Applied Biological Chemistry, Kyoto Univ., Yoshida, Kyoto (Japan)

    2004-07-01

    The Cd{sup 2+}-chelating abilities of yeast metallothionein (YMT) and hexa-His displayed on the yeast-cell surface were compared. Display of YMT and hexa-His by {alpha}-agglutinin-based cell-surface engineering was confirmed by immunofluorescent labeling. Surface-engineered yeast cells with YMT and hexa-His fused in tandem showed superior cell-surface adsorption and recovery of Cd{sup 2+} under EDTA treatment on the cell surface than hexa-His-displaying cells. YMT was demonstrated to be more effective than hexa-His for the adsorption of Cd{sup 2+}. Yeast cells displaying YMT and/or hexa-His exhibited a higher potential for the adsorption of Cd{sup 2+} than Escherichia coli cells displaying these molecules. In order to investigate the effect of the displayed YMT and hexa-His on sensitivity to toxic Cd{sup 2+}, growth in Cd{sup 2+}-containing liquid medium was monitored. Unlike hexa-His-displaying cells, cells displaying YMT and hexa-His fused in tandem induced resistance to Cd{sup 2+} through active and enhanced adsorption of toxic Cd{sup 2+}. These results indicate that YMT-displaying yeast cells are a unique bioadsorbent with a functional chelating ability superior to that of E. coli. (orig.)

  6. Comparison of color LCD and medical-grade monochrome LCD displays in diagnostic radiology.

    Science.gov (United States)

    Geijer, Håkan; Geijer, Mats; Forsberg, Lillemor; Kheddache, Susanne; Sund, Patrik

    2007-06-01

    In diagnostic radiology, medical-grade monochrome displays are usually recommended because of their higher luminance. Standard color displays can be used as a less expensive alternative, but have a lower luminance. The aim of the present study was to compare image quality for these two types of displays. Images of a CDRAD contrast-detail phantom were read by four radiologists using a 2-megapixel (MP) color display (143 cd/m(2) maximum luminance) as well as 2-MP (295 cd/m(2)) and 3-MP monochrome displays. Thirty lumbar spine radiographs were also read by four radiologists using the color and the 2-MP monochrome display in a visual grading analysis (VGA). Very small differences were found between the displays when reading the CDRAD images. The VGA scores were -0.28 for the color and -0.25 for the monochrome display (p = 0.24; NS). It thus seems possible to use color displays in diagnostic radiology provided that grayscale adjustment is used.

  7. Interpretation and display of research results

    Directory of Open Access Journals (Sweden)

    Dilip Kumar Kulkarni

    2016-01-01

    Full Text Available It important to properly collect, code, clean and edit the data before interpreting and displaying the research results. Computers play a major role in different phases of research starting from conceptual, design and planning, data collection, data analysis and research publication phases. The main objective of data display is to summarize the characteristics of a data and to make the data more comprehensible and meaningful. Usually data is presented depending upon the type of data in different tables and graphs. This will enable not only to understand the data behaviour, but also useful in choosing the different statistical tests to be applied.

  8. Variable parallax barrier spacing in autostereoscopic displays

    Science.gov (United States)

    Yoon, Seon Kyu; Khym, Sungwon; Kim, Hyun-Woo; Kim, Sung-Kyu

    2016-07-01

    In general, multi-view autostereoscopic displays can only provide autostereoscopic images with little crosstalk at the optimum viewing distance (OVD) in the depth direction, limiting the mobility of viewers. Therefore, this paper proposes a method of increasing viewer mobility in the depth direction by varying the distance separating the parallax barrier and the display. Computer simulations and experiments were conducted to verify changes in the OVD resulting from the application of the proposed method. The results showed that the proposed method is effective at changing the OVD with respect to changes in the viewing distance. Therefore this method minimizes changes in the 3D image quality due to the viewer's depth location.

  9. Perceptual transparency in neon color spreading displays.

    Science.gov (United States)

    Ekroll, Vebjørn; Faul, Franz

    2002-08-01

    In neon color spreading displays, both a color illusion and perceptual transparency can be seen. In this study, we investigated the color conditions for the perception of transparency in such displays. It was found that the data are very well accounted for by a generalization of Metelli's (1970) episcotister model of balanced perceptual transparency to tristimulus values. This additive model correctly predicted which combinations of colors would lead to optimal impressions of transparency. Color combinations deviating slightly from the additive model also looked transparent, but less convincingly so.

  10. Bright color reflective displays with interlayer reflectors

    Science.gov (United States)

    Kitson, Stephen; Geisow, Adrian; Rudin, John; Taphouse, Tim

    2011-08-01

    A good solution to the reflective display of color has been a major challenge for the display industry, with very limited color gamuts demonstrated to date. Conventional side-by-side red, green and blue color filters waste two-thirds of incident light. The alternative of stacking cyan, magenta and yellow layers is also challenging -- a 10% loss per layer compounds to nearly 50% overall. Here we demonstrate an architecture that interleaves absorbing-to-clear shutters with matched wavelength selective reflectors. This increases color gamut by reducing losses and more cleanly separating the color channels, and gives much wider choice of electro-optic colorants.

  11. Displaying of Details in Subvoxel Accuracy

    Institute of Scientific and Technical Information of China (English)

    蔡文立; 陈天洲; 等

    1996-01-01

    Under the volume segmentation in voxel space,a lot of details,some fine and thin objects,are ignored.In order to accurately display these details,this paper has developed a methodology for volume segmentation in subvoxel space.In the subvoxel space,most of the “bridges”between adjacent layers are broken down.Based on the subvoxel space,an automatic segmentation algorithm reserving details is discussed.After segmentation,volume data in subvoxel space are reduced to original voxel space.Thus,the details with width of only one or several voxels are extracted and displayed.

  12. Comprehensive evaluation of latest 2D/3D monitors and comparison to a custom-built 3D mirror-based display in laparoscopic surgery

    Science.gov (United States)

    Wilhelm, Dirk; Reiser, Silvano; Kohn, Nils; Witte, Michael; Leiner, Ulrich; Mühlbach, Lothar; Ruschin, Detlef; Reiner, Wolfgang; Feussner, Hubertus

    2014-03-01

    Though theoretically superior, 3D video systems did not yet achieve a breakthrough in laparoscopic surgery. Furthermore, visual alterations, such as eye strain, diplopia and blur have been associated with the use of stereoscopic systems. Advancements in display and endoscope technology motivated a re-evaluation of such findings. A randomized study on 48 test subjects was conducted to investigate whether surgeons can benefit from using most current 3D visualization systems. Three different 3D systems, a glasses-based 3D monitor, an autostereoscopic display and a mirror-based theoretically ideal 3D display were compared to a state-of-the-art 2D HD system. The test subjects split into a novice and an expert surgeon group, which high experience in laparoscopic procedures. Each of them had to conduct a well comparable laparoscopic suturing task. Multiple performance parameters like task completion time and the precision of stitching were measured and compared. Electromagnetic tracking provided information on the instruments path length, movement velocity and economy. The NASA task load index was used to assess the mental work load. Subjective ratings were added to assess usability, comfort and image quality of each display. Almost all performance parameters were superior for the 3D glasses-based display as compared to the 2D and the autostereoscopic one, but were often significantly exceeded by the mirror-based 3D display. Subjects performed the task at average 20% faster and with a higher precision. Work-load parameters did not show significant differences. Experienced and non-experienced laparoscopists profited equally from 3D. The 3D mirror system gave clear evidence for additional potential of 3D visualization systems with higher resolution and motion parallax presentation.

  13. Investigation of Energy-Efficient Supermarket Display Cases

    Energy Technology Data Exchange (ETDEWEB)

    Walker, D.H.

    2005-01-21

    Supermarkets represent one of the largest energy-intensive building groups in the commercial sector, consuming 2 to 3 million kWh/yr per store (ES-1). Over half of this energy use is for the refrigeration of food display cases and storage coolers. Display cases are used throughout a supermarket for the merchandising of perishable food products. The cases are maintained at air temperatures ranging from -10 to 35 F, depending upon the type of product stored. The operating characteristics and energy requirements of the refrigeration system are directly related to the refrigeration load. The sources of the display case refrigeration load consist of: (1) Moist and warm air infiltration through the open front of the case--air curtains are employed to inhibit this infiltration, but some ambient air is entrained, which adds a substantial portion to the refrigeration load. (2) Heat conduction through case panels and walls. (3) Thermal radiation from the ambient to the product and display case interior. (4) Internal thermal loads--the use of lights, evaporator fans, periodic defrosts, and antisweat heaters adds to the refrigeration load of the display case as well as directly consuming electric energy. The impact of each of these elements on the refrigeration load is very dependent upon case type (Figure ES-1). For example, air infiltration is the most significant portion of the refrigeration load for open, multi-deck cases, while radiation is the largest part of the load for tub-type cases. The door anti-sweat heaters represent a major share of the refrigeration load for frozen food door reach-in cases. Figure ES-2 shows the distribution of display cases in a typical supermarket (ES-2). Open, multi-deck, medium temperature display cases typically comprise about half of the refrigerated fixtures in a store (ES-3). In addition, medium temperature fixtures and storage coolers account for roughly 70 to 75 percent of the total store refrigeration load with open, multi-deck cases

  14. Performance evaluation of soft copy display systems according to AAPM TG18 protocol.

    Science.gov (United States)

    Olgar, T; Kamberli, E

    2013-06-01

    The purpose of this study was to evaluate the display performance of the liquid crystal display monitors according to the American association of physicists in medicine task group 18 (AAPM TG18) protocol at prior and after new calibration. We measured minimum and maximum luminance, luminance ratio, luminance and contrast response, luminance angular and spatial dependency, resolution, veiling glare and chromaticity quantitatively for 33 medical displays. Display noise was evaluated only visually. The mean maximum luminance and luminance ratio were 386 and 273 cd m(-2), respectively. The mean deviation of measured luminance and contrast response from expected response associated with the digital imaging and communications in medicine (DICOM) grayscale standard display function (GSDF) were 9.76 and 2.35 % at prior calibration and 1.23 and 0.26 % after recalibration, respectively. In luminance uniformity test the mean maximum luminance deviation was 16 %. Luminance method was used in the spatial resolution test and the mean percent luminance difference was 12 % at the center. The mean glare ratio was 1 154. The average color uniformity parameter across the display area of each display device was 0.0093. Majority of the test results were in good agreement with the criteria recommended by AAPM TG18 report. Considerable improvement was observed in display luminance and contrast response with respect to expected response of DICOM GSDF after new calibration for some displays.

  15. Human motion perception: Higher-order organization

    Science.gov (United States)

    Kaiser, Mary K.; Proffitt, Dennis R.

    1990-01-01

    An overview is given of higher-order motion perception and organization. It is argued that motion is sufficient to fully specify a number of environmental properties, including: depth order, three-dimensional form, object displacement, and dynamics. A grammar of motion perception is proposed; applications of this work for display design are discussed.

  16. Optimal Backlight Modulation With Crosstalk Control in Stereoscopic Display

    DEFF Research Database (Denmark)

    Jiao, Liangbao; Shu, Xiao; Cheng, Yong

    2014-01-01

    Crosstalk between the left-eye and right-eye images is one of the main artifacts affecting the visual quality of stereoscopic liquid crystal display (LCD) systems. In this paper, a novel technique, called Optimal Backlight Modulation (OBM), is proposed to reduce crosstalk by taking the advantage....... A simple closed-form approximation of the optimization problem can be easily employed and solved in real time on LCD control hardware. Simulation results show that the proposed OBM algorithm provides the same or higher luminance while reducing the crosstalk by 60% compared with the other tested methods....

  17. A faster switching regime for zenithal bistable nematic displays

    Energy Technology Data Exchange (ETDEWEB)

    Rudin, J

    1997-12-01

    A simpler and faster switching regime for Zenithal Bistable Nematic displays is reported. A cell, based on homeotropic alignment of nematic liquid crystal over a continuous blazed monograting on one surface, can be switched using bipolar pulses an order of magnitude faster than monopolar pulses of the same voltage. We propose that this regime relies on simple dielectric coupling to drive the cell into a higher energy state with a long pulse time, and the relaxation into a lower energy state after the creation of surface defects from a shorter applied pulse. Although flexoelectric effects are observed, they do not form the basis of state selection as was proposed for the monopolar pulses

  18. A TCL/TK Widget for Display of MEDM Screens

    CERN Document Server

    Soliday, Robert

    2005-01-01

    A new Tcl/Tk widget has been created to display MEDM screens inside a Tcl/Tk application. Tcl/Tk parses the MEDM input files and the appropriate widgets are created and linked to the associated process variables. One advantage of this approach is that an X-Windows emulator is not required to view and manipulate the MEDM screen under a Windows operating system. Another benefit is that the MEDM screen can now be tightly integrated into a scripting language to attach higher-level logic to various process variable manipulations. Further details and examples of the new widget will be discussed.

  19. A TCL/TK widget for display of MEDM screens.

    Energy Technology Data Exchange (ETDEWEB)

    Soliday, R.; APS Operations Division

    2005-01-01

    A new Tcl/Tk widget has been created to display MEDM screens inside a Tcl/Tk application. Tcl/Tk parses the MEDM input files and the appropriate widgets are created and linked to the associated process variables. One advantage of this approach is that an X-Windows emulator is not required to view and manipulate the MEDM screen under a Windows operating system. Another benefit is that the MEDM screen can now be tightly integrated into a scripting language to attach higher-level logic to various process variable manipulations. Further details and examples of the new widget will be discussed.

  20. Large-screen display industry: market and technology trends for direct view and projection displays

    Science.gov (United States)

    Castellano, Joseph A.; Mentley, David E.

    1996-03-01

    Large screen information displays are defined as dynamic electronic displays that can be viewed by more than one person and are at least 2-feet wide. These large area displays for public viewing provide convenience, entertainment, security, and efficiency to the viewers. There are numerous uses for large screen information displays including those in advertising, transportation, traffic control, conference room presentations, computer aided design, banking, and military command/control. A noticeable characteristic of the large screen display market is the interchangeability of display types. For any given application, the user can usually choose from at least three alternative technologies, and sometimes from many more. Some display types have features that make them suitable for specific applications due to temperature, brightness, power consumption, or other such characteristic. The overall worldwide unit consumption of large screen information displays of all types and for all applications (excluding consumer TV) will increase from 401,109 units in 1995 to 655,797 units in 2002. On a unit consumption basis, applications in business and education represent the largest share of unit consumption over this time period; in 1995, this application represented 69.7% of the total. The market (value of shipments) will grow from DOL3.1 billion in 1995 to DOL3.9 billion in 2002. The market will be dominated by front LCD projectors and LCD overhead projector plates.

  1. Head Mounted Displays for Virtual Reality

    Science.gov (United States)

    1993-02-01

    image generating capabilities. 2.2.4 Color Since people are used to viewing the world in color, a full-color display would add to the realism of the...Crescent Street, Waltham, MA, undated. Lipton, L., Foundations of the Stereoscopic Cinema , New York: Van Nostrand Rheinhold Company, 1982. Martin, S. W

  2. Exploring Community Building with an Awareness Display

    NARCIS (Netherlands)

    Vyas, Dhaval; Nijholt, Anton; Eliëns, Anton; Poelman, Wim; Makedon, Fillia

    2011-01-01

    In this paper, we present a field trial of a pervasive system called Panorama that is aimed at supporting social awareness in work environments. Panorama is an intelligent situated display in the staff room of an academic department. It artistically represents non-critical user generated content suc

  3. A Conceptual Framework for Ambient Learning Displays

    NARCIS (Netherlands)

    Börner, Dirk; Kalz, Marco; Specht, Marcus

    2010-01-01

    Börner, D., Kalz, M., & Specht, M. (2010). A Conceptual Framework for Ambient Learning Displays. In B. Chang, T. Hirashima, & H. Ogata (Eds.), Joint Proceedings of the Work-in-Progress Poster and Invited Young Researcher Symposium for the 18th International Conference on Computers in Education (pp.

  4. Perception of Depth with Stereoscopic Combat Displays.

    Science.gov (United States)

    1986-03-01

    phorias and aniseikonia contributed to visual fatigue in * observers of stereo displays though this proposition has never been put to test. In future...experiments, individuals with slight, but measurable, eye muscle imbalances or aniseikonia -should be compared with normals across various viewing sy

  5. Perception of Spatial Features with Stereoscopic Displays.

    Science.gov (United States)

    1980-10-24

    aniseikonia (differences in retinal image size in the two eyes) are of little significance because only monocular perception of the display is required for...perception as a result of such factors as aniseikonia , uncor- rected refractive errors, or phorias results in reduced stereopsis. However, because

  6. A Conceptual Framework for Ambient Learning Displays

    NARCIS (Netherlands)

    Börner, Dirk; Kalz, Marco; Specht, Marcus

    2011-01-01

    Börner, D., Kalz, M., & Specht, M. (2010, 29 November-3 December). A Conceptual Framework for Ambient Learning Displays. Poster presented at the Work-in-Progress Poster and Invited Young Researcher Symposium of the 18th International Conference on Computers in Education, Putrajaya, Malaysia: Asia-Pa

  7. A Conceptual Framework for Ambient Learning Displays

    NARCIS (Netherlands)

    Börner, Dirk; Kalz, Marco; Specht, Marcus

    2010-01-01

    Börner, D., Kalz, M., & Specht, M. (2010). A Conceptual Framework for Ambient Learning Displays. In B. Chang, T. Hirashima, & H. Ogata (Eds.), Joint Proceedings of the Work-in-Progress Poster and Invited Young Researcher Symposium for the 18th International Conference on Computers in Education (pp.

  8. Liquid Crystal Microlenses for Autostereoscopic Displays

    Directory of Open Access Journals (Sweden)

    José Francisco Algorri

    2016-01-01

    Full Text Available Three-dimensional vision has acquired great importance in the audiovisual industry in the past ten years. Despite this, the first generation of autostereoscopic displays failed to generate enough consumer excitement. Some reasons are little 3D content and performance issues. For this reason, an exponential increase in three-dimensional vision research has occurred in the last few years. In this review, a study of the historical impact of the most important technologies has been performed. This study is carried out in terms of research manuscripts per year. The results reveal that research on spatial multiplexing technique is increasing considerably and today is the most studied. For this reason, the state of the art of this technique is presented. The use of microlenses seems to be the most successful method to obtain autostereoscopic vision. When they are fabricated with liquid crystal materials, extended capabilities are produced. Among the numerous techniques for manufacturing liquid crystal microlenses, this review covers the most viable designs for its use in autostereoscopic displays. For this reason, some of the most important topologies and their relation with autostereoscopic displays are presented. Finally, the challenges in some recent applications, such as portable devices, and the future of three-dimensional displays based on liquid crystal microlenses are outlined.

  9. Recommended Colours for Use on Airborne Displays.

    Science.gov (United States)

    1982-11-01

    generation of military aircraft will also utilise such devices. There are a number of types of colour CRTs but the penetron and shadow mask devices are...towards 610 nm also typifies penetron displays. When these boundaries are superimposed on repre- sentative source (Fig 21) and surface (Fig 22) plots it

  10. Presenting directions with a vibrotactile torso display

    NARCIS (Netherlands)

    Erp, J.B.F. van

    2005-01-01

    Vibrotactile displays covering the torso present spatial information in an intuitive way since the stimuli are directly mapped to the body coordinates; left is left, front is front, etc. The present study investigated the direction in the horizontal plane to which a specific torso location is mapped

  11. Supramolecular liquid crystal displays : construction and applications

    NARCIS (Netherlands)

    Hoogboom, Joannes Theodorus Valentinus

    2004-01-01

    This thesis describes chemical methodologies, which can be ued to construct alignment layers for liquid crystal display purposes in a non-clean room environment, by making use of supramolecular chemistry. These techniques are subsequently used to attain control over LCD-properties, both pre- and pos

  12. A Conceptual Framework for Ambient Learning Displays

    NARCIS (Netherlands)

    Börner, Dirk; Kalz, Marco; Specht, Marcus

    2011-01-01

    Börner, D., Kalz, M., & Specht, M. (2010, 29 November-3 December). A Conceptual Framework for Ambient Learning Displays. Poster presented at the Work-in-Progress Poster and Invited Young Researcher Symposium of the 18th International Conference on Computers in Education, Putrajaya, Malaysia:

  13. Ambient Displays and Game Design Patterns

    NARCIS (Netherlands)

    Kelle, Sebastian; Börner, Dirk; Kalz, Marco; Specht, Marcus

    2010-01-01

    Kelle, S., Börner, D., Kalz, M., & Specht, M. (2010). Ambient Displays and Game Design Patterns. In M. Wolpers, P. A. Kirschner, M. Scheffel, S. Lindstädt, & V. Dimitrova (Eds.), Sustaining TEL: From Innovation to Learning and Practice, Proceedings of EC-TEL 2010 (pp. 512-517). LNCS 6383. Berlin, He

  14. Slew Timer For Symbol Display Generator

    Science.gov (United States)

    Fisher, Paul A.

    1993-01-01

    Slew-length timer generates delay and, at end of delay, signal indicating end of one of slews of electron beam in cathode-ray-tube display driven by symbol generator. End-of-slew signal constitutes "permission" for symbol generator to begin drawing next symbol segment.

  15. Baculovirus display of functional antibody Fab fragments.

    Science.gov (United States)

    Takada, Shinya; Ogawa, Takafumi; Matsui, Kazusa; Suzuki, Tasuku; Katsuda, Tomohisa; Yamaji, Hideki

    2015-08-01

    The generation of a recombinant baculovirus that displays antibody Fab fragments on the surface was investigated. A recombinant baculovirus was engineered so that the heavy chain (Hc; Fd fragment) of a mouse Fab fragment was expressed as a fusion to the N-terminus of baculovirus gp64, while the light chain of the Fab fragment was simultaneously expressed as a secretory protein. Following infection of Sf9 insect cells with the recombinant baculovirus, the culture supernatant was analyzed by enzyme-linked immunosorbent assay using antigen-coated microplates and either an anti-mouse IgG or an anti-gp64 antibody. A relatively strong signal was obtained in each case, showing antigen-binding activity in the culture supernatant. In western blot analysis of the culture supernatant using the anti-gp64 antibody, specific protein bands were detected at an electrophoretic mobility that coincided with the molecular weight of the Hc-gp64 fusion protein as well as that of gp64. Flow cytometry using a fluorescein isothiocyanate-conjugated antibody specific to mouse IgG successfully detected the Fab fragments on the surface of the Sf9 cells. These results suggest that immunologically functional antibody Fab fragments can be displayed on the surface of baculovirus particles, and that a fluorescence-activated cell sorter with a fluorescence-labeled antigen can isolate baculoviruses displaying specific Fab fragments. This successful baculovirus display of antibody Fab fragments may offer a novel approach for the efficient selection of specific antibodies.

  16. Tactile display device using an electrorheological fluid

    Science.gov (United States)

    Garner, H. Douglas

    1994-08-01

    A tactile display device utilizes an electrorheological fluid to activate a plurality of tactile dots. A voltage is selectively produced uniformly across an electrorheological fluid flowing between a common ground electrode and a plurality of conductive dot electrodes, thereby producing an increase in the fluid's viscosity to the extent that fluid flow between the two electrodes is restricted. The flow restriction produces a build-up of electrorheological fluid in a corresponding dot actuator chamber. The resulting pressure increase in the chamber displaces an elastic diaphragm fixed to a display surface to form a lump which can be perceived by the reader as one dot in a Braille character cell. A flow regulation system provides a continually pressurized flow system and provides for free flow of the electrorheological fluid through the plurality of dot actuator chambers when they are not activated. The device is adaptable to printed circuit techniques and can simultaneously display tactile dots representative of a full page of Braille characters stored on a medium such as a tape cassette or to display tactile dots representative of non-Braille data appearing on a computer monitor or contained on another data storage medium. In an alternate embodiment, the elastic diaphragm drives a plurality of spring-loaded pins provided with positive stops to maintain consistent displacements of the pins in both their actuated and nonactuated positions.

  17. Visualising the Battlefield with Panoramic Displays

    Science.gov (United States)

    2000-11-01

    such colour capability, sufficient viewing angle, capabilities: who has the authority to interact colourcablity sufficintrvie igag with and change...conferencing, briefings, etc. can also be displayed (see Figure 2). * LSDs must conform to population stereotypes (i.e. user expectations about

  18. Converting a Display Screen into a Touchscreen

    Institute of Scientific and Technical Information of China (English)

    Qun Wang; Jun Cheng; San-Ming Shen; Yi-Jiang Shen; Jian-Xin Pang

    2014-01-01

    A method is presented to convert any display screen into a touchscreen by using a pair of cameras. Most state of art touchscreens make use of special touch-sensitive hardware or depend on infrared sensors in various configurations. We describe a novel computer-vision-based method that can robustly identify fingertips and detect touch with a precision of a few millimeters above the screen. In our system, the two cameras capture the display screen image simultaneously. Users can interact with a computer by the fingertip on the display screen. We have two important contributions:first, we develop a simple and robust hand detection method based on predicted images. Second, we determine whether a physical touch takes places by the homography of the two cameras. In this system, the appearance of the display screen in camera images is inherently predictable from the computer output images. Therefore, we can compute the predicted images and extract human hand precisely by simply subtracting the predicted images from captured images.

  19. Recognition of epoxy with phage displayed peptides.

    Science.gov (United States)

    Swaminathan, Swathi; Cui, Yue

    2013-07-01

    The development of a general approach for non-destructive chemical and biological functionalization of epoxy could expand opportunities for both fundamental studies and creating various device platforms. Epoxy shows unique electrical, mechanical, chemical and biological compatibility and has been widely used for fabricating a variety of devices. Phage display has emerged as a powerful method for selecting peptides that possess enhanced selectivity and binding affinity toward a variety of targets. In this letter, we demonstrate for the first time a powerful yet benign approach for identifying binding motifs to epoxy via comprehensively screened phage displayed peptides. Our results show that the epoxy can be selectively recognized with peptide-displaying phages. Further, along with the development of epoxy-based microstructures; recognition of the epoxy with phage displayed peptides can be specifically localized in these microstructures. We anticipate that these results could open up exciting opportunities in the use of peptide-recognized epoxy in fundamental biochemical recognition studies, as well as in applications ranging from analytical devices, hybrid materials, surface and interface, to cell biology. Copyright © 2013 Elsevier B.V. All rights reserved.

  20. Electronic Chart Display and Information System

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    This paper introduces the most advanced form of electronic chart display and information systems (ECDIS) which complies with the Performance Standards for ECDIS established by the International Maritime Organization (IMO) and the International Hydrographic Organization (IHO).It also describes the key features and the important functions of ECDIS.Then the future development of ECDIS in marine is discussed.

  1. Advanced manufacturing technologies on color plasma displays

    Science.gov (United States)

    Betsui, Keiichi

    2000-06-01

    The mass production of the color plasma display started from 1996. However, since the price of the panel is still expensive, PDPs are not in widespread use at home. It is necessary to develop the new and low-cost manufacturing technologies to reduce the price of the panel. This paper describes some of the features of new fabrication technologies of PDPs.

  2. Ambient Displays and Game Design Patterns

    NARCIS (Netherlands)

    Kelle, Sebastian; Börner, Dirk; Kalz, Marco; Specht, Marcus

    2010-01-01

    Kelle, S., Börner, D., Kalz, M., & Specht, M. (2010). Ambient Displays and Game Design Patterns. In M. Wolpers, P. A. Kirschner, M. Scheffel, S. Lindstädt, & V. Dimitrova (Eds.), Sustaining TEL: From Innovation to Learning and Practice, Proceedings of EC-TEL 2010 (pp. 512-517). LNCS 6383. Berlin,

  3. Group X

    Energy Technology Data Exchange (ETDEWEB)

    Fields, Susannah

    2007-08-16

    This project is currently under contract for research through the Department of Homeland Security until 2011. The group I was responsible for studying has to remain confidential so as not to affect the current project. All dates, reference links and authors, and other distinguishing characteristics of the original group have been removed from this report. All references to the name of this group or the individual splinter groups has been changed to 'Group X'. I have been collecting texts from a variety of sources intended for the use of recruiting and radicalizing members for Group X splinter groups for the purpose of researching the motivation and intent of leaders of those groups and their influence over the likelihood of group radicalization. This work included visiting many Group X websites to find information on splinter group leaders and finding their statements to new and old members. This proved difficult because the splinter groups of Group X are united in beliefs, but differ in public opinion. They are eager to tear each other down, prove their superiority, and yet remain anonymous. After a few weeks of intense searching, a list of eight recruiting texts and eight radicalizing texts from a variety of Group X leaders were compiled.

  4. VLSI design of 3D display processing chip for binocular stereo displays

    Institute of Scientific and Technical Information of China (English)

    Ge Chenyang; Zheng Nanning

    2010-01-01

    In order to develop the core chip supporting binocular stereo displays for head mounted display(HMD)and glasses-TV,a very large scale integrated(VLSI)design scheme is proposed by using a pipeline architecture for 3D display processing chip(HMD100).Some key techniques including stereo display processing and high precision video scaling based bicubic interpolation,and their hardware implementations which improve the image quality are presented.The proposed HMD100 chip is verified by the field-programmable gate array(FPGA).As one of innovative and high integration SoC chips,HMD100 is designed by a digital and analog mixed circuit.It can support binocular stereo display,has better scaling effect and integration.Hence it is applicable in virtual reality(VR),3D games and other microdisplay domains.

  5. Spatial constraints of stereopsis in video displays

    Science.gov (United States)

    Schor, Clifton

    1989-01-01

    Recent development in video technology, such as the liquid crystal displays and shutters, have made it feasible to incorporate stereoscopic depth into the 3-D representations on 2-D displays. However, depth has already been vividly portrayed in video displays without stereopsis using the classical artists' depth cues described by Helmholtz (1866) and the dynamic depth cues described in detail by Ittleson (1952). Successful static depth cues include overlap, size, linear perspective, texture gradients, and shading. Effective dynamic cues include looming (Regan and Beverly, 1979) and motion parallax (Rogers and Graham, 1982). Stereoscopic depth is superior to the monocular distance cues under certain circumstances. It is most useful at portraying depth intervals as small as 5 to 10 arc secs. For this reason it is extremely useful in user-video interactions such as telepresence. Objects can be manipulated in 3-D space, for example, while a person who controls the operations views a virtual image of the manipulated object on a remote 2-D video display. Stereopsis also provides structure and form information in camouflaged surfaces such as tree foliage. Motion parallax also reveals form; however, without other monocular cues such as overlap, motion parallax can yield an ambiguous perception. For example, a turning sphere, portrayed as solid by parallax can appear to rotate either leftward or rightward. However, only one direction of rotation is perceived when stereo-depth is included. If the scene is static, then stereopsis is the principal cue for revealing the camouflaged surface structure. Finally, dynamic stereopsis provides information about the direction of motion in depth (Regan and Beverly, 1979). Clearly there are many spatial constraints, including spatial frequency content, retinal eccentricity, exposure duration, target spacing, and disparity gradient, which - when properly adjusted - can greatly enhance stereodepth in video displays.

  6. Dynamic exit pupil trackers for autostereoscopic displays.

    Science.gov (United States)

    Akşit, Kaan; Baghsiahi, Hadi; Surman, Phil; Ölçer, Selim; Willman, Eero; Selviah, David R; Day, Sally; Urey, Hakan

    2013-06-17

    This paper describes the first demonstrations of two dynamic exit pupil (DEP) tracker techniques for autostereoscopic displays. The first DEP tracker forms an exit pupil pair for a single viewer in a defined space with low intraocular crosstalk using a pair of moving shutter glasses located within the optical system. A display prototype using the first DEP tracker is constructed from a pair of laser projectors, pupil-forming optics, moving shutter glasses at an intermediate pupil plane, an image relay lens, and a Gabor superlens based viewing screen. The left and right eye images are presented time-sequentially to a single viewer and seen as a 3D image without wearing glasses and allows the viewer to move within a region of 40 cm × 20 cm in the lateral plane, and 30 cm along the axial axis. The second DEP optics can move the exit pupil location dynamically in a much larger 3D space by using a custom spatial light modulator (SLM) forming an array of shutters. Simultaneous control of multiple exit pupils in both lateral and axial axes is demonstrated for the first time and provides a viewing volume with an axial extent of 0.6-3 m from the screen and within a lateral viewing angle of ± 20° for multiple viewers. This system has acceptable crosstalk (< 5%) between the stereo image pairs. In this novel version of the display the optical system is used as an advanced dynamic backlight for a liquid crystal display (LCD). This has advantages in terms of overall display size as there is no requirement for an intermediate image, and in image quality. This system has acceptable crosstalk (< 5%) between the stereo image pairs.

  7. Phage display: concept, innovations, applications and future.

    Science.gov (United States)

    Pande, Jyoti; Szewczyk, Magdalena M; Grover, Ashok K

    2010-01-01

    Phage display is the technology that allows expression of exogenous (poly)peptides on the surface of phage particles. The concept is simple in principle: a library of phage particles expressing a wide diversity of peptides is used to select those that bind the desired target. The filamentous phage M13 is the most commonly used vector to create random peptide display libraries. Several methods including recombinant techniques have been developed to increase the diversity of the library. On the other extreme, libraries with various biases can be created for specific purposes. For instance, when the sequence of the peptide that binds the target is known, its affinity and selectivity can be increased by screening libraries created with limited mutagenesis of the peptide. Phage libraries are screened for binding to synthetic or native targets. The initial screening of library by basic biopanning has been extended to column chromatography including negative screening and competition between selected phage clones to identify high affinity ligands with greater target specificity. The rapid isolation of specific ligands by phage display is advantageous in many applications including selection of inhibitors for the active and allosteric sites of the enzymes, receptor agonists and antagonists, and G-protein binding modulatory peptides. Phage display has been used in epitope mapping and analysis of protein-protein interactions. The specific ligands isolated from phage libraries can be used in therapeutic target validation, drug design and vaccine development. Phage display can also be used in conjunction with other methods. The past innovations and those to come promise a bright future for this field.

  8. Image quality of a mobile display under different illuminations.

    Science.gov (United States)

    Lin, Po-Hung; Kuo, Wen-Hung

    2011-08-01

    This study constructed the image quality models for a small mobile display under different ambient illumination levels using Group Method and Data Handling (GMDH) and described the relationship between perceived image quality and physical measurements. 33 college students took part in this experiment and were asked to evaluate the image quality under 1500 lux (typical indoor office illumination) and 7000 lux (simulated outdoor environment) in Stage One and Stage Two, respectively. In each stage, the participants had to evaluate 21 images. 17 sets of the data as a training set were used to build the model and four sets of the data as a testing set were used to verify the model. The results indicated that the effects of luminance, contrast, correlated color temperature (CCT), and resolution were significant on perceived image quality under 1500 lux. However, color temperature was not a significant physical characteristic, and an interaction between luminance and contrast was found below 7000 lux. From the results of the experiment, it is considered that the outdoor environment (7000 lux) is not suitable for using mobile displays. Finally, once a valid image quality model is built, the subjective image quality can be established when the measurements of significant physical characteristics are provided. The results of subjective ratings can also be provided for mobile display manufacturers to improve the product quality so that their products can meet customers' requirements.

  9. ELECTROSTATIC INTERACTION HYBRIDS FROM WATER-BORNE CONDUCTIVE POLYANILINE AND INORGANIC PRECURSOR CONTAINING CARBOXYL GROUP

    Institute of Scientific and Technical Information of China (English)

    Jing Luo; Xian-hong Wang; Ji Li; Xiao-jiang Zhao; Fo-song Wang

    2007-01-01

    Electrostatic interaction conductive hybrids were prepared in water/ethanol solution by the sol-gel process from inorganic sol containing carboxyl group and water-borne conductive polyaniline(cPANI).The electrostatic interaction hybrids film displayed 1-2 orders of magnitude higher electrical conductivity in comparison with common hybrids film,showing remarkable conductivity stability against water soaking.Most strikingly,it displayed ideal electrochemical activity even in a solution with pH=14,which enlarged the conducting polyaniline application window to strong alkaline media.

  10. Application of Group Psychological Counseling in Higher Vocational College——With Wuhan Institute of Shipbuilding as a case study%团体心理辅导在高职院校心理健康教育中的应用——以武汉船院为例

    Institute of Scientific and Technical Information of China (English)

    陈春晓

    2012-01-01

    As a kind of experience activity,group psychological group counseling plays a positive role in higher vocational psychological health education.Starting from the practical significance of group psychological counseling in higher vocational college,this essay takes Wuhan Institute of Shipbuilding as a study case,analyses the shortcomings of current group counseling in higher vocational colleges,and proposes relevant suggestions.%团体心理辅导作为一种体验式活动,在高职院校心理健康教育中有着积极的应用。文章从团体心理辅导在高职院校心理健康教育中的实践意义出发,结合武汉船院班级团体心理辅导活动的开展情况,重点分析了当前高职院校团体心理辅导的不足之处,并提出了相关建议。

  11. A novel time-multiplexed autostereoscopic multiview full resolution 3D display

    Science.gov (United States)

    Liou, Jian-Chiun; Chen, Fu-Hao

    2012-03-01

    Many people believe that in the future, autostereoscopic 3D displays will become a mainstream display type. Achievement of higher quality 3D images requires both higher panel resolution and more viewing zones. Consequently, the transmission bandwidth of the 3D display systems involves enormous amounts of data transfer. We propose and experimentally demonstrate a novel time-multiplexed autostereoscopic multi-view full resolution 3D display based on the lenticular lens array in association with the control of the active dynamic LED backlight. The lenticular lenses of the lens array optical system receive the light and deflect the light into each viewing zone in a time sequence. The crosstalk under different observation scanning angles is showed, including the cases of 4-views field scanning. The crosstalk of any view zones is about 5% respectively; the results are better than other 3D type.

  12. Group morphology

    NARCIS (Netherlands)

    Roerdink, Jos B.T.M.

    2000-01-01

    In its original form, mathematical morphology is a theory of binary image transformations which are invariant under the group of Euclidean translations. This paper surveys and extends constructions of morphological operators which are invariant under a more general group TT, such as the motion group

  13. Advanced and tendencies in the development of display technologies

    Science.gov (United States)

    Kompanets, I. N.

    2006-06-01

    Advances and key display applications are discussed. Computer, compact mobile, TV and collective large screen displays are mentioned. Flat panel displays step on CRT devices to leave them behind in 2007. Materials, active matricies and applications of bright radiative field emission and organic LED displays are developing successively and pressing other technologies to be used in photo-cameras, cellular phones, auto-cars and avionics. Progress in flexible screens can substantially extend the display design and application soon. 3D display systems are under intensive development, and laser is an important unit in some vaiants of holographic and volumetric 3D displays. Value forecast of different display markets is presented.

  14. Optimization of the polyplanar optical display electronics for a monochrome B-52 display

    Energy Technology Data Exchange (ETDEWEB)

    DeSanto, L.

    1998-04-01

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. The prototype ten-inch display is two inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. In order to achieve a long lifetime, the new display uses a new 200 mW green solid-state laser (10,000 hr. life) at 532 nm as its light source. To produce real-time video, the laser light is being modulated by a Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments (TI). In order to use the solid-state laser as the light source and also fit within the constraints of the B-52 display, the Digital Micromirror Device (DMD{trademark}) chip is operated remotely from the Texas Instruments circuit board. In order to achieve increased brightness a monochrome digitizing interface was investigated. The operation of the DMD{trademark} divorced from the light engine and the interfacing of the DMD{trademark} board with the RS-170 video format specific to the B-52 aircraft will be discussed, including the increased brightness of the monochrome digitizing interface. A brief description of the electronics required to drive the new 200 mW laser is also presented.

  15. Super high precision 200 ppi liquid crystal display series; Chokoseido 200 ppi ekisho display series

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In mobile equipment, in demand is a high precision liquid crystal display (LCD) having the power of expression equivalent to printed materials like magazines because of the necessity of displaying a large amount of information on a easily potable small screen. In addition, with the spread and high-quality image of digital still cameras, it is strongly desired to display photographed digital image data in high quality. Toshiba Corp., by low temperature polysilicone (p-Si) technology, commercialized the liquid crystal display series of 200 ppi (pixels per inch) precision dealing with the rise of the high-precision high-image quality LCD market. The super high precision of 200 ppi enables the display of smooth beautiful animation comparable to printed sheets of magazines and photographs. The display series are suitable for the display of various information services such as electronic books and electronic photo-viewers including internet. The screen sizes lined up are No. 4 type VGA (640x480 pixels) of a small pocket notebook size and No. 6.3 type XGA (1,024x768 pixels) of a paperback size, with a larger screen to be furthered. (translated by NEDO)

  16. CLS to higher education administrator: the right navigational skills.

    Science.gov (United States)

    Campbell, Suzanne; LaCost, Barbara Y

    2010-01-01

    To identify the experiences, training, and opportunities that directed and influenced the career paths of women clinical laboratory scientists that transitioned to higher education administrators. A multi-site case study design was selected for this qualitative research involving a purposive sample of eight research participants. Data collection was guided by ten open-ended questions in seven face-to-face and one telephone semi-formal interviews. The purposive sample included women clinical laboratory scientists who held a current higher education administrative position at the dean's level, including associate and assistant dean positions, in a university setting. The participants were located in eight higher education institutions in Nebraska, Illinois, Ohio, Tennessee, Missouri, and Texas. MAIN Leadership skills/characteristics, professional development opportunities, mentoring experiences, opportunities for advancement. Possessing a doctoral degree, demonstrating competence and strong leadership skills, having a good role model and/or mentor, displaying the ability to see the big picture, and possessing exemplary communication skills were identified by this group of women as necessary requirements for obtaining and maintaining a position as a higher education administrator. The participants in this study confirmed that by possessing a terminal degree and a defined skill set, they were able to obtain a higher education administrator position.

  17. A dynamic display keyboard and a key for use in a dynamic display keyboard

    DEFF Research Database (Denmark)

    2011-01-01

    The invention relates to a dynamic display keyboard comprising a plurality of key elements (101), each key element (101) comprises a transmitting part (102) capable of transmitting at least a part of light incident on the transmitting part; a mat (105) comprising a plurality of elevated elements......). In this way, the dynamic display keyboard is able to provide a tactile feedback in response to a user action directed towards a key of the keyboard. Further, the only power requiring element in the keyboard is the display unit....

  18. Cognitive Cost of Using Augmented Reality Displays.

    Science.gov (United States)

    Baumeister, James; Ssin, Seung Youb; ElSayed, Neven A M; Dorrian, Jillian; Webb, David P; Walsh, James A; Simon, Timothy M; Irlitti, Andrew; Smith, Ross T; Kohler, Mark; Thomas, Bruce H

    2017-11-01

    This paper presents the results of two cognitive load studies comparing three augmented reality display technologies: spatial augmented reality, the optical see-through Microsoft HoloLens, and the video see-through Samsung Gear VR. In particular, the two experiments focused on isolating the cognitive load cost of receiving instructions for a button-pressing procedural task. The studies employed a self-assessment cognitive load methodology, as well as an additional dual-task cognitive load methodology. The results showed that spatial augmented reality led to increased performance and reduced cognitive load. Additionally, it was discovered that a limited field of view can introduce increased cognitive load requirements. The findings suggest that some of the inherent restrictions of head-mounted displays materialize as increased user cognitive load.

  19. Time management displays for shuttle countdown

    Science.gov (United States)

    Beller, Arthur E.; Hadaller, H. Greg; Ricci, Mark J.

    1992-01-01

    The Intelligent Launch Decision Support System project is developing a Time Management System (TMS) for the NASA Test Director (NTD) to use for time management during Shuttle terminal countdown. TMS is being developed in three phases: an information phase; a tool phase; and an advisor phase. The information phase is an integrated display (TMID) of firing room clocks, of graphic timelines with Ground Launch Sequencer events, and of constraints. The tool phase is a what-if spreadsheet (TMWI) for devising plans for resuming from unplanned hold situations. It is tied to information in TMID, propagates constraints forward and backward to complete unspecified values, and checks the plan against constraints. The advisor phase is a situation advisor (TMSA), which proactively suggests tactics. A concept prototype for TMSA is under development. The TMID is currently undergoing field testing. Displays for TMID and TMWI are described. Descriptions include organization, rationale for organization, implementation choices and constraints, and use by NTD.

  20. Visual displays and Neuro-Linguistic Programming

    Energy Technology Data Exchange (ETDEWEB)

    Brown-VanHoozer, S.A. [Argonne National Lab., Idaho Falls, ID (United States); VanHoozer, W.R. [Tranceformations Unlimited, Rigby, ID (United States)

    1994-10-01

    Advancement of computer technology is forthcoming at such a rapid pace that the research concerning the interplay of humans and computer technology is lagging far behind. One area of particular concern is the design of visual displays that are pragmatic, ``user friendly,`` and ``user assisting.`` When engineers design visual displays, they generally do so methodically and logically, but only from within their own individual perspective or ``model of the world.`` They select the human aspects which make sense to them and not necessarily to non-engineers, operators, and others. The model design is what the engineer chooses to relate, based on his or her perspective of reality. These choices limit the model design thereby excluding the users` perspective. A set of techniques which can be used to assist the designers in expanding their choices and include the users` model is Neuro-Linguistic Programming (NLP).

  1. Panoramic cockpit displays for tactical military cockpits

    Science.gov (United States)

    Fletcher, Mark; Huffman, David

    2010-04-01

    The F-35 Joint Strike Fighter (JSF) incorporates the latest technology for aerial warfighting. To support this aircraft's mission and to provide the pilot with the increased situational awareness needed in today's battlespace, a panoramic AMLCD was developed and is being deployed for the first time. This 20" by 8" display is the largest fielded to date in a tactical fighter. Key system innovations had to be employed to allow this technology to function in this demanding environment. Certain older generation aircraft are now considering incorporating a panoramic display to provide their crews with this level of increased capability. Key design issues that had to be overcome dealt with sunlight readability, vibration resistance, touchscreen operation, and reliability concerns to avoid single-point failures. A completely dual redundant system design had to be employed to ensure that the pilot would always have access to critical mission and flight data.

  2. Interactive displays natural human-interface technologies

    CERN Document Server

    Bhowmik, Achintya K

    2014-01-01

    One of the first books to provide an in-depth discussion of the technologies, applications and trends in the rapidly emerging field of interactive displays (touch, gesture & voice) The book will cover the technologies, applications and trends in the field of interactive displays, namely interfaces based on touch, gesture and voice and those using a combination of these technologies. The book will be split into 4 main parts with each being dedicated to a specific user interface. Part 1 ''Touch Interfaces'' will provide a review of the currently deployed touch-screen technologies and applications. It will also cover the recent developments towards achieving thinner, lightweight and cost-reduced touch screen panels in the future via integration of touch functionalities. Part 2 ''Gesture Interfaces'' will examine techniques and applications in stereoscopic 3D computer vision, structured-light 3D computer vision and time-of-flight 3D computer vision in gesture interfaces. Part 3 ''Voice Interfaces'' will revie...

  3. Likelihood alarm displays. [for human operator

    Science.gov (United States)

    Sorkin, Robert D.; Kantowitz, Barry H.; Kantowitz, Susan C.

    1988-01-01

    In a likelihood alarm display (LAD) information about event likelihood is computed by an automated monitoring system and encoded into an alerting signal for the human operator. Operator performance within a dual-task paradigm was evaluated with two LADs: a color-coded visual alarm and a linguistically coded synthetic speech alarm. The operator's primary task was one of tracking; the secondary task was to monitor a four-element numerical display and determine whether the data arose from a 'signal' or 'no-signal' condition. A simulated 'intelligent' monitoring system alerted the operator to the likelihood of a signal. The results indicated that (1) automated monitoring systems can improve performance on primary and secondary tasks; (2) LADs can improve the allocation of attention among tasks and provide information integrated into operator decisions; and (3) LADs do not necessarily add to the operator's attentional load.

  4. Spacesuit Data Display and Management System

    Science.gov (United States)

    Hall, David G.; Sells, Aaron; Shah, Hemal

    2009-01-01

    A prototype embedded avionics system has been designed for the next generation of NASA extra-vehicular-activity (EVA) spacesuits. The system performs biomedical and other sensor monitoring, image capture, data display, and data transmission. An existing NASA Phase I and II award winning design for an embedded computing system (ZIN vMetrics - BioWATCH) has been modified. The unit has a reliable, compact form factor with flexible packaging options. These innovations are significant, because current state-of-the-art EVA spacesuits do not provide capability for data displays or embedded data acquisition and management. The Phase 1 effort achieved Technology Readiness Level 4 (high fidelity breadboard demonstration). The breadboard uses a commercial-grade field-programmable gate array (FPGA) with embedded processor core that can be upgraded to a space-rated device for future revisions.

  5. Next Generation Flight Displays Using HTML5

    Science.gov (United States)

    Greenwood, Brian

    2016-01-01

    The Human Integrated Vehicles and Environments (HIVE) lab at Johnson Space Center (JSC) is focused on bringing together inter-disciplinary talent to design and integrate innovative human interface technologies for next generation manned spacecraft. As part of this objective, my summer internship project centered on an ongoing investigation in to building flight displays using the HTML5 standard. Specifically, the goals of my project were to build and demo "flight-like" crew and wearable displays as well as create a webserver for live systems being developed by the Advanced Exploration Systems (AES) program. In parallel to my project, a LabVIEW application, called a display server, was created by the HIVE that uses an XTCE (XML (Extensible Markup Language) Telemetry and Command Exchange) parser and CCSDS (Consultative Committee for Space Data System) space packet decoder to translate telemetry items sent by the CFS (Core Flight Software) over User Datagram Protocol (UDP). It was the webserver's job to receive these UDP messages and send them to the displays. To accomplish this functionality, I utilized Node.js and the accompanying Express framework. On the display side, I was responsible for creating the power system (AMPS) displays. I did this by using HTML5, CSS and JavaScript to create web pages that could update and change dynamically based on the data they received from the webserver. At this point, I have not started on the commanding, being able to send back to the CFS, portion of the displays but hope to have this functionality working by the completion of my internship. I also created a way to test the webserver's functionality without the display server by making a JavaScript application that read in a comma-separate values (CSV) file and converted it to XML which was then sent over UDP. One of the major requirements of my project was to build everything using as little preexisting code as possible, which I accomplished by only using a handful of Java

  6. Grating light modulator for projection display

    Institute of Scientific and Technical Information of China (English)

    Jiyong Sun; Shanglian Huang; Jie Zhang; Zhihai Zhang; Yong Zhu

    2009-01-01

    A novel grating light modulator for projection display is introduced. It consists of an upper moveable grat-ing, a bottom mirror, and four supporting posts between them. The moveable grating and the bottom mir-ror compose a phase grating whose phase difference is controlled by the actuating voltage. When the phase difference is 2kπ, the grating light modulator will switch the incident light to zero-order diffraction; when the phase difference is (2k - 1)π, the grating light modulator will diffract light to first-order diffraction. A 16 × 16 modulator array is fabricated by the surface micromachining technology. The device works well when it is actuated by a voltage with 1-kHz frequency and 10-V amplitude. The fabricated grating light modulator can show blackness and brightness when controlled by the voltage. This modulator has potential applications in projection display system.

  7. Two methods to forecast auroral displays

    Science.gov (United States)

    Sigernes, Fred; Dyrland, Margit; Brekke, Pål; Chernouss, Sergey; Lorentzen, Dag Arne; Oksavik, Kjellmar; Sterling Deehr, Charles

    2011-10-01

    This work compares the methods by Starkov (1994a) and Zhang & Paxton (2008), that calculate the size and location of the auroral ovals as a function of planetary Kp index. The ovals are mapped in position and time onto a solar illuminated surface model of the Earth. It displays both the night- and dayside together with the location of the twilight zone as Earth rotates under the ovals. The graphical display serves as a tool to forecast auroral activity based on the predicted value of the Kp index. The forecast is installed as a service at http://kho.unis.no/. The Zhang & Paxton (2008) ovals are wider in latitude than the Starkov (1994a) ovals. The nightside model ovals coincide fairly well in shape for low to normal auroral conditions. The equatorward border of the diffuse aurora is well defined by both methods on the nightside for Kp ≤ 7. The dayside needs further studies in order to conclude.

  8. Two methods to forecast auroral displays

    Directory of Open Access Journals (Sweden)

    Oksavik Kjellmar

    2011-10-01

    Full Text Available This work compares the methods by Starkov (1994a and Zhang & Paxton (2008, that calculate the size and location of the auroral ovals as a function of planetary Kp index. The ovals are mapped in position and time onto a solar illuminated surface model of the Earth. It displays both the night- and dayside together with the location of the twilight zone as Earth rotates under the ovals. The graphical display serves as a tool to forecast auroral activity based on the predicted value of the Kp index. The forecast is installed as a service at http://kho.unis.no/. The Zhang & Paxton (2008 ovals are wider in latitude than the Starkov (1994a ovals. The nightside model ovals coincide fairly well in shape for low to normal auroral conditions. The equatorward border of the diffuse aurora is well defined by both methods on the nightside for Kp ≤ 7. The dayside needs further studies in order to conclude.

  9. Uniform LED illuminator for miniature displays

    Science.gov (United States)

    Medvedev, Vladimir; Pelka, David G.; Parkyn, William A.

    1998-10-01

    The Total Internally Reflecting (TIR) lens is a faceted structure composed of prismatic elements that collect a source's light over a much larger angular range than a conventional Fresnel lens. It has been successfully applied to the efficient collimation of light from incandescent and fluorescent lamps, and from light-emitting diodes (LEDs). A novel LED-powered collimating backlight is presented here, for uniformly illuminating 0.25'-diagonal miniature liquid- crystal displays, which are a burgeoning market for pagers, cellular phones, digital cameras, camcorders, and virtual- reality displays. The backlight lens consists of a central dual-asphere refracting section and an outer TIR section, properly curved with a curved exit face.

  10. Multiview multiperspective time multiplexed autostereoscopic display

    Science.gov (United States)

    Kupiec, Stephen A.; Markov, Vladimir B.; Hopper, Darrel G.; Saini, Gurdial

    2008-02-01

    The implementation of a time multiplexed display capable of eight simultaneously visible viewing zones will be described. The system employs a high speed digital micromirror device (DMD) to allow for the high framerate essential for flicker free display of multiple viewing zones. A combination of custom graphical processor unit (GPU) programming and a correspondingly optimized field programmable gate array (FPGA) DMD driver allows for real time interactive rendering of scenes. The rendering engine is entirely based on off the shelf with the use of a standard DVI-D interface for data transfer to the DMD interface. A rapidly switched LED light engine is employed to overcome the speed limitations of color wheel light sources, as well as providing a highly saturated color gamut. Selection of viewing zones is achieved by the use of a high-speed shutter interfaced directly to the DMD driver for precise synchronization.

  11. Vision Algorithms Catch Defects in Screen Displays

    Science.gov (United States)

    2014-01-01

    Andrew Watson, a senior scientist at Ames Research Center, developed a tool called the Spatial Standard Observer (SSO), which models human vision for use in robotic applications. Redmond, Washington-based Radiant Zemax LLC licensed the technology from NASA and combined it with its imaging colorimeter system, creating a powerful tool that high-volume manufacturers of flat-panel displays use to catch defects in screens.

  12. Lanthanide Diphthalocyanines. Electrochemistry and Display Applications.

    Science.gov (United States)

    1982-01-01

    addressing must be devised. Electrochromic cells usually attain cycle lives far beyond those of secondary batteries, although both devices operate with...6 x 6 inches in size. Recently, Barclay et al. (1980) demonstrated a 1 x 1-inch viologen electrochromic matrix with integrated drive built on a...Identify by block nimober) rare earths diphthalocyanines electrochemistry electrochromism displays 20. ABSTRACT (Coninue on revee side Of necessary, and

  13. VOICE. A Spectrogram Computer Display Package

    Science.gov (United States)

    1990-06-01

    Bioacoustics Laboratory of the Biology Department. Funding for the work has been from the Office of Naval Research under contracts N00014-88-K-0273...a 0; /einitializes at each exit from running display*/ which a Alevels Epuebkt]; which->pge a pagenow; which->incr - step; which->ofset M doff set...Collection Hancock Library of Biology & Texas A&M University Oceanography Dept. of Oceanography Alan Hancock Laboratory College Station, TX 77843 University of

  14. Heuristic Automation for Decluttering Tactical Displays

    Science.gov (United States)

    2007-01-01

    This approach led to a 23% improvement in search times, even when the au- tomation was only 70% reliable. In a dual-task paradigm, Sorkin, Kantowitz ...and Kantowitz (1988) used a “likelihood alarm display” to indi- cate the likelihood of a signal occurring in the secondary task. Users exploited the... Kantowitz , & Kanto- witz, 1988; St. John & Manes, 2002) and fuzzy signal detection (Parasuraman, Masalonis, & Hancock, 2000). Such a display would still

  15. Inventions on Displaying and Resizing Windows

    OpenAIRE

    Mishra, Umakant

    2014-01-01

    Windows are used quite frequently in a GUI environment. The greatest advantage of using windows is that each window creates a virtual screen space. Hence, although the physical screen space is limited to a few inches, use of windows can create unlimited screen space to display innumerable items. The use of windows facilitates the user to open and interact with multiple programs or documents simultaneously in different windows. Sometimes a single program may also open multiple windows to displ...

  16. Remote Tactile Displays for Future Soldiers

    Science.gov (United States)

    2007-05-01

    performance, each participant sat on an adjustable height, padded stool , which was adjusted so that each participant’s ear was approximately at the ear...Brill, J. C.; Gilson, R. D. Tactile Technology for Covert Displays. Proceedings of the 50th Annual Meeting of the Human Factors and Ergonomics ...Reduction Via Multi-Sensory Directional Cueing. Proceedings of the 48th Annual Meeting of the Human Factors and Ergonomics Society, New Orleans, LA, 2004

  17. Electronic control/display interface technology

    Science.gov (United States)

    Parrish, R. V.; Busquets, A. M.; Murray, R. F.; Hatfield, J. J.

    1985-01-01

    An effort to produce a representative workstation for the Space Station Data Management Test Bed that provides man/machine interface design options for consolidating, automating, and integrating the space station work station, and hardware/software technology demonstrations of space station applications is discussed. The workstation will emphasize the technologies of advanced graphics engines, advanced display/control medias, image management techniques, multifunction controls, and video disk utilizations.

  18. Holographic Combiners for Head-Up Displays

    Science.gov (United States)

    1977-10-01

    AFAL-TR-77 -110 S HOLOGRAPHIC COMBINERS FOR HEAD-UP DISPLAYS S Radar and Optics Division Environmental Research Institute of Michigan P.O. Box 8618...to 200. SECURITY CLASSIFICATION OF THIS PAGE(RWihen Data Entered) FOREWORD This report was prepared by the Radar and Optics Division of the...with fringes parallel to the surface......31 Figure 13. Raytrace through the F-4 HUD with a holographic combiner

  19. Remote Software Application and Display Development

    Science.gov (United States)

    Sanders, Brandon T.

    2014-01-01

    The era of the shuttle program has come to an end, but only to give rise to newer and more exciting projects. Now is the time of the Orion spacecraft, a work of art designed to exceed all previous endeavors of man. NASA is exiting the time of exploration and is entering a new period, a period of pioneering. With this new mission, many of NASAs organizations must undergo a great deal of change and development to support the Orion missions. The Spaceport Command and Control System (SCCS) is the new system that will provide NASA the ability to launch rockets into orbit and thus control Orion and other spacecraft as the goal of populating Mars becomes ever increasingly tangible. Since the previous control system, Launch Processing System (LPS), was primarily designed to launch the shuttles, SCCS was needed as Kennedy Space Center (KSC) reorganized to a multiuser spaceport for commercial flights, providing a more versatile control over rockets. Within SCCS, is the Launch Control System (LCS), which is the remote software behind the command and monitoring of flight and ground system hardware. This internship at KSC has involved two main components in LCS, including Remote Software Application and Display development. The display environment provides a graphical user interface for an operator to view and see if any cautions are raised, while the remote applications are the backbone that communicate with hardware, and then relay the data back to the displays. These elements go hand in hand as they provide monitoring and control over hardware and software alike from the safety of the Launch Control Center. The remote software applications are written in Application Control Language (ACL), which must undergo unit testing to ensure data integrity. This paper describes both the implementation and writing of unit tests in ACL code for remote software applications, as well as the building of remote displays to be used in the Launch Control Center (LCC).

  20. SureTrak Probability of Impact Display

    Science.gov (United States)

    Elliott, John

    2012-01-01

    The SureTrak Probability of Impact Display software was developed for use during rocket launch operations. The software displays probability of impact information for each ship near the hazardous area during the time immediately preceding the launch of an unguided vehicle. Wallops range safety officers need to be sure that the risk to humans is below a certain threshold during each use of the Wallops Flight Facility Launch Range. Under the variable conditions that can exist at launch time, the decision to launch must be made in a timely manner to ensure a successful mission while not exceeding those risk criteria. Range safety officers need a tool that can give them the needed probability of impact information quickly, and in a format that is clearly understandable. This application is meant to fill that need. The software is a reuse of part of software developed for an earlier project: Ship Surveillance Software System (S4). The S4 project was written in C++ using Microsoft Visual Studio 6. The data structures and dialog templates from it were copied into a new application that calls the implementation of the algorithms from S4 and displays the results as needed. In the S4 software, the list of ships in the area was received from one local radar interface and from operators who entered the ship information manually. The SureTrak Probability of Impact Display application receives ship data from two local radars as well as the SureTrak system, eliminating the need for manual data entry.

  1. Speckle analysis in laser scanning display system

    Institute of Scientific and Technical Information of China (English)

    Hong Chang; Wei Huang; Fugui Yang; Hai Ming; Jianping Xie

    2009-01-01

    The theory of speckle formation in laser scanning display system is established based on the averaging effect of eye response as laser beam scanning through an eye resolution spot.It is analyzed that speckle reduction can be obtained by averaging states of speckle during scanning.The theoretical results show that a smaller correlation length of screen surface and the narrowing of laser beam in scanning direction can reduce speckle contrast for this system.

  2. Electro Spray Method for Flexible Display

    Science.gov (United States)

    2016-05-12

    mobility.1-6) For the fabrication of ZnO-based thin films, vacuum processes, such as, sputtering, pulsed laser deposition and plasma enhanced chemical...3, “Thermal Analysis of Oxide Thin Film Transistor with Fluorinated Silicon Nitride Gate Insulator”. 3) M.Ochi and Y.Uraoka et al, AMDp1-3...Y.Uraoka et al, FLXp2-3, “Thermal Analysis of Oxide Thin Film Transistor with Fluorinated Silicon Nitride Gate Insulator”, International Display

  3. How the user views visual displays

    Energy Technology Data Exchange (ETDEWEB)

    Brown-VanHoozer, S.A.

    1995-12-31

    Most designers are not schooled in the area of human-interaction psychology and therefore tend to rely on the traditional ergonomic aspects of human factors when designing complex human-interactive workstations. Unfortunately, by ignoring the importance of the integration of the user interface at the psychophysiological level, the result can be ineffective use of a system leading to an inherently error- and failure-prone system. Therefore, to minimize failures in a human-interactive system, it is essential that designers understand how each user`s processing characteristics affect how the user gathers and processes information. By understanding the significant processing characteristics of the user, designers can implement practical and effective visual displays (or any other type of system) that are more desirable to all users. The material presented in this paper is based on a general study that involved users` perspective views of how visual displays should be designed for effective use. The methodology used was Neuro-Linguistic Programming (NLP), because of its applicability in expanding design choices from the users` ``model of the world.`` The findings of the study have provided a beginning in the development of user comfort parameters and visual displays.

  4. Optimization of lens shape for autostereoscopic display

    Science.gov (United States)

    Su, Ping; An, Shu; Ma, Jianshe

    2016-10-01

    The three-dimensional(3D) displays based on binocular parallax have drawn increasingly interests. The light splitting element, which presents separate images to the viewer's left and right eyes, plays an important part in the auto-stereoscopic display. Lenticular lenses are widely used as the light splitting elements. However, the crosstalk resulted from the unsatisfied splitting may reduce the 3D experience. It was determined that the most suitable cross sectional shape for lenticular lenses is elliptical. Firstly, the formula of the surface is derived based on the ellipse expression and the requirement of the 3D display system, that is y2+0.5651x2 - 303.4768=0. Secondly, one axial source and 4 off-axial sources placed at the heights of 2.5mm, 5mm, 7.5mm and 8mm are used to analyze the beam splitting quality of the cylindrical and elliptical lens element, respectively. The spot of elliptical lens is smaller which means a better beam splitting quality. Thirdly, Monte Carlo Non-Sequential Ray tracing algorithm is used to simulate the luminance distribution on the viewing plane, the narrower width of vertical stripes means that the aberration is suppressed. Finally, the shape of elliptical can reduce the processing difficulty with the 10μm minimum step width. In a word, the optimization of the surface has a significant effect on the improvement of stereoscopic depth and the reduction of ghost images.

  5. Interaction Analysis through Proteomic Phage Display

    Directory of Open Access Journals (Sweden)

    Gustav N. Sundell

    2014-01-01

    Full Text Available Phage display is a powerful technique for profiling specificities of peptide binding domains. The method is suited for the identification of high-affinity ligands with inhibitor potential when using highly diverse combinatorial peptide phage libraries. Such experiments further provide consensus motifs for genome-wide scanning of ligands of potential biological relevance. A complementary but considerably less explored approach is to display expression products of genomic DNA, cDNA, open reading frames (ORFs, or oligonucleotide libraries designed to encode defined regions of a target proteome on phage particles. One of the main applications of such proteomic libraries has been the elucidation of antibody epitopes. This review is focused on the use of proteomic phage display to uncover protein-protein interactions of potential relevance for cellular function. The method is particularly suited for the discovery of interactions between peptide binding domains and their targets. We discuss the largely unexplored potential of this method in the discovery of domain-motif interactions of potential biological relevance.

  6. Dynamic Color Displays Using Stepwise Cavity Resonators.

    Science.gov (United States)

    Chen, Yiqin; Duan, Xiaoyang; Matuschek, Marcus; Zhou, Yanming; Neubrech, Frank; Duan, Huigao; Liu, Na

    2017-09-13

    High-resolution multicolor printing based on pixelated optical nanostructures is of great importance for promoting advances in color display science. So far, most of the work in this field has been focused on achieving static colors, limiting many potential applications. This inevitably calls for the development of dynamic color displays with advanced and innovative functionalities. In this Letter, we demonstrate a novel dynamic color printing scheme using magnesium-based pixelated Fabry-Pérot cavities by gray scale nanolithography. With controlled hydrogenation and dehydrogenation, magnesium undergoes unique metal and dielectric transitions, enabling distinct blank and color states from the pixelated Fabry-Pérot resonators. Following such a scheme, we first demonstrate dynamic Ishihara plates, in which the encrypted images can only be read out using hydrogen as information decoding key. We also demonstrate a new type of dynamic color generation, which enables fascinating transformations between black/white printing and color printing with fine tonal tuning. Our work will find wide-ranging applications in full-color printing and displays, colorimetric sensing, information encryption and anticounterfeiting.

  7. Application of the Decomposition Method to the Design Complexity of Computer-based Display

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Hyoung Ju; Lee, Seung Woo; Seong, Poong Hyun [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of); Park, Jin Kyun [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2012-05-15

    The importance of the design of human machine interfaces (HMIs) for human performance and safety has long been recognized in process industries. In case of nuclear power plants (NPPs), HMIs have significant implications for the safety of the NPPs since poor implementation of HMIs can impair the operators' information searching ability which is considered as one of the important aspects of human behavior. To support and increase the efficiency of the operators' information searching behavior, advanced HMIs based on computer technology are provided. Operators in advanced main control room (MCR) acquire information through video display units (VDUs), and large display panel (LDP) required for the operation of NPPs. These computer-based displays contain a very large quantity of information and present them in a variety of formats than conventional MCR. For example, these displays contain more elements such as abbreviations, labels, icons, symbols, coding, and highlighting than conventional ones. As computer-based displays contain more information, complexity of the elements becomes greater due to less distinctiveness of each element. A greater understanding is emerging about the effectiveness of designs of computer-based displays, including how distinctively display elements should be designed. And according to Gestalt theory, people tend to group similar elements based on attributes such as shape, color or pattern based on the principle of similarity. Therefore, it is necessary to consider not only human operator's perception but the number of element consisting of computer-based display

  8. Group Work. Research Brief

    Science.gov (United States)

    Walker, Karen

    2010-01-01

    According to Johnson and Johnson, group work helps increase student retention and satisfaction, develops strong oral communication and social skills, as well as higher self-esteem (University of Minnesota, n.d.). Group work, when planned and implemented deliberately and thoughtfully helps students develop cognitive and leadership skills as well as…

  9. Group devaluation and group identification

    NARCIS (Netherlands)

    Leach, C.W.; Rodriguez Mosquera, P.M.; Vliek, M.L.W.; Hirt, E.

    2010-01-01

    In three studies, we showed that increased in-group identification after (perceived or actual) group devaluation is an assertion of a (preexisting) positive social identity that counters the negative social identity implied in societal devaluation. Two studies with real-world groups used order manip

  10. Progress in 3D imaging and display by integral imaging

    Science.gov (United States)

    Martinez-Cuenca, R.; Saavedra, G.; Martinez-Corral, M.; Pons, A.; Javidi, B.

    2009-05-01

    Three-dimensionality is currently considered an important added value in imaging devices, and therefore the search for an optimum 3D imaging and display technique is a hot topic that is attracting important research efforts. As main value, 3D monitors should provide the observers with different perspectives of a 3D scene by simply varying the head position. Three-dimensional imaging techniques have the potential to establish a future mass-market in the fields of entertainment and communications. Integral imaging (InI), which can capture true 3D color images, has been seen as the right technology to 3D viewing to audiences of more than one person. Due to the advanced degree of development, InI technology could be ready for commercialization in the coming years. This development is the result of a strong research effort performed along the past few years by many groups. Since Integral Imaging is still an emerging technology, the first aim of the "3D Imaging and Display Laboratory" at the University of Valencia, has been the realization of a thorough study of the principles that govern its operation. Is remarkable that some of these principles have been recognized and characterized by our group. Other contributions of our research have been addressed to overcome some of the classical limitations of InI systems, like the limited depth of field (in pickup and in display), the poor axial and lateral resolution, the pseudoscopic-to-orthoscopic conversion, the production of 3D images with continuous relief, or the limited range of viewing angles of InI monitors.

  11. Recent advances in head-mounted light field displays for virtual and augmented reality (Conference Presentation)

    Science.gov (United States)

    Hua, Hong

    2017-02-01

    Head-mounted light field displays render a true 3D scene by sampling either the projections of the 3D scene at different depths or the directions of the light rays apparently emitted by the 3D scene and viewed from different eye positions. They are capable of rendering correct or nearly correct focus cues and addressing the very well-known vergence-accommodation mismatch problem in conventional virtual and augmented reality displays. In this talk, I will focus on reviewing recent advancements of head-mounted light field displays for VR and AR applications. I will demonstrate examples of HMD systems developed in my group.

  12. Anomalous photometrical displays in faint meteors from TV observations in Kyiv

    Science.gov (United States)

    Kozak, P. M.

    2016-10-01

    Analysis of a large range of results of modern TV meteor observations for searching presence their of the meteors with highly displayed anomalies in kinematic and photometrical characteristics has been carried out. In parallel, the results of Kyiv meteor group observations obtained with the help of observational systems equipped by high sensitive transmitting TV tubes of superisocon type, which have a range of highly displayed anomalies in a meteor development are presented. Comparative qualitative analysis of the observational data containing anomalous displays in meteor photometrical parameters, in part in their light curves is carried out, and the conclusions about physical reality of technical artifacts of the selected anomalies are done.

  13. The CRT display evaluation: The multidimensional rating of CRT-generated displays

    Science.gov (United States)

    Getman, D. L.; Blackman, H. S.; Banks, W. W.; Petersen, R. J.

    1982-10-01

    This report is one in a series evaluating various methods for determining the effectiveness of display formats and contains results from multidimensional rating of three cathode ray tube displays. Each display contained information regarding the status of nine safety parameters critical to safe operations the Loss-Of-Fluid Test (LOFT) reactor located at the Idaho National Engineering Laboratory (INEL). Certified LOFT operators evaluated three formats - bars, stars, and meters - as part of a multimethod display evaluation ongoing at INEL. Each of the six cognitive dimensions embedded in the rating scale are discussed in terms of their internal consistency and ability to differentiate between each of the three formats. Preliminary findings suggest that two of the six dimensions, content integration and cognitive processing, were able to discriminate between formats while satisfying the criteria of internal consistency as measured by Cronbach's alpha. Conclusions in this report must be interpreted in light of moderate test-retest reliability.

  14. Three-dimensional holographic display using active shutter for head mounted display application

    Science.gov (United States)

    Kim, Hyun-Eui; Kim, Nam; Song, Hoon; Lee, Hong-Seok; Park, Jae-Hyeung

    2011-03-01

    Three-dimensional holographic system using active shutters for head mounted display application is proposed. Conventional three-dimensional head mounted display suffers from eye-fatigue since it only provides binocular disparity, not monocular depth cues like accommodation. The proposed method presents two holograms of a 3D scene to corresponding eyes using active shutters. Since a holography delivered to each eye has full three-dimensional information, not only the binocular depth cues but also monocular depth cues are presented, eliminating eye-fatigue. The application to the head mounted display also greatly relaxes the viewing angle requirement that is one of the main issues of the conventional holographic displays. In presentation, the proposed optical system will be explained in detail with experimental results.

  15. Display on Display: Migrating Identities in Contemporary Francophone Literature and Music

    OpenAIRE

    Knox, Katelyn Elizabeth

    2013-01-01

    "Display on Display: Migrating Identities in Contemporary Francophone Literature and Music" examines Francophone cultural works of the twentieth and twenty-first centuries that grapple with constructions of sub-Saharan African immigrant identity in France. Its cultural studies methodology responds to a current lacuna in traditional philology-based literary studies that divorces literary expression from its wider cultural context, bringing to the fore questions of corporeality, history, and id...

  16. Pollination by deceit in nutmeg (Myristica insipida, Myristicaceae): floral displays and beetle activity at male and female trees.

    Science.gov (United States)

    Armstrong, J

    1997-09-01

    Pollination by deceit in Myristica insipida, a beetle-pollinated nutmeg, was hypothesized to operate on intersexual differences in flower production and longevity, producing a daily fluctuation between floral display maxima and minima. Sticky traps were used to continuously monitor beetle activity. Flower production and naturally occurring intersexual differences in display were recorded. Male and female trees flowered in synchrony producing daily display maxima at 1800-0600 and display minima at 1400-1800. Rewarding male trees produced three times the number of flowers of female trees, but the greater longevity of female flowers reduced the intersexual difference in display maxima to a factor of two. There was no intersexual difference in display minima. Beetles were demonstrated to be sensitive to differences in both maximum and minimum displays on rewarding male trees, a necessary prerequisite for directional selection on display size. Beetle captures were significantly higher at male trees during floral display maxima, and no intersexual differences in capture rate occurred during floral display minima. However, capture rates at male trees did not decline as predicted, and the pattern of captures was consistent with crepuscular activity. Beetle captures at male and female trees were lower from 1800 to 0600 and 1000 to 1400, and higher from 0600 to 1000 and 1400 to 1800, but the differences were only significant at female trees. These data suggests that foraging errors are numerous, frequent, and the result of overall foraging activity.

  17. Advanced Colorimetry of Display Systems: Tetra-Chroma3 Display Unit

    Directory of Open Access Journals (Sweden)

    J. Kaiser

    2005-06-01

    Full Text Available High-fidelity color image reproduction is one of the key issues invisual telecommunication systems, for electronic commerce,telemedicine, digital museum and so on. All colorimetric standards ofdisplay systems are up to the present day trichromatic. But, from theshape of a horseshoe-area of all existing colors in the CIE xychromaticity diagram it follows that with three real reproductivelights, the stated area in the CIE xy chromaticity diagram cannot beoverlaid. The expansion of the color gamut of a display device ispossible in a few ways. In this paper, the way of increasing the numberof primaries is studied. The fourth cyan primary is added to threeconventional ones to enlarge the color gamut of reproduction towardscyans and yellow-oranges. The original method of color management forthis new display unit is introduced. In addition, the color gamut ofthe designed additive-based display is successfully compared with thecolor gamut of a modern subtractive-based system. A display with morethan three primary colors is called a multiprimary color display. Thevery advantageous property of such display is the possibility todisplay metameric colors.

  18. Site-protected fixation and immobilization of Escherichia coli cells displaying surface-anchored beta-lactamase.

    Science.gov (United States)

    Freeman, A; Abramov, S; Georgiou, G

    1999-01-20

    Bacteria displaying heterologous receptors or enzymes on their surface hold great potential as whole-cell adsorbents and biocatalysts, respectively. For industrial applications, such surface-engineered cells need to be killed and chemically fixed to prevent disintegration and leakage of the displayed proteins under process conditions. It is also highly desirable to couple the chemically stabilized cells onto a solid support matrix for additional mechanical stability, flexibility in reactor choice, and easy separation from processed medium. Recently, we described the development of a readily scalable methodology for cell killing, fixation, and outer membrane stabilization via glutaraldehyde fixation followed by secondary crosslinking (Freeman, A., Abramov, S. and Georgiou, G. 1996. Biotechnol. Bioeng. 52: 625-630). Glutaraldehyde treatment was also found, however, to reduce the specific activity of a model enzyme, beta-lactamase displayed on the surface of E. coli. Here, we show that crosslinking carried out in the presence of beta-lactamase inhibitors, namely phenyl boronic acid or sodium borate, protects the active site from chemical modification resulting in up to threefold higher specific activities without affecting the cell-stabilizing effect of the glutaraldehyde treatment. To prepare an immobilized whole cell biocatalyst, residual unreacted surface aldehyde groups were employed to immobilize covalently the fixed bacteria onto chitosan-coated cellulose powder. The binding of the bacteria onto chitosan-coated cellulose was quantitative up to cell loading of 83 mg dry cell weight/g of support. Cell immobilization did not introduce mass transfer limitations and created only a modest reduction in Vmax. Thus, chemical crosslinking, affected in presence of reversible active-site inhibitors and coupled with cell immobilization on chitosan-coated cellulose represents a widely useful methodology for the process application of recombinant bacteria displaying surface

  19. High-speed display system for animation using multimicrocomputer

    Energy Technology Data Exchange (ETDEWEB)

    Onda, K.; Oako, Y.

    1983-01-01

    A high-speed display system architecture for computer animation is proposed. Many picture memories, each of which is connected to a microcomputer, and display controller are used for producing and displaying pictures in parallel. This system can be realized with low-speed processors without specific hardwares to display natural movement. 1 ref.

  20. Higher Franz-Reidemeister torsion

    CERN Document Server

    Igusa, Kiyoshi

    2002-01-01

    The book is devoted to the theory of topological higher Franz-Reidemeister torsion in K-theory. The author defines the higher Franz-Reidemeister torsion based on Volodin's K-theory and Borel's regulator map. He describes its properties and generalizations and studies the relation between the higher Franz-Reidemeister torsion and other torsions used in K-theory: Whitehead torsion and Ray-Singer torsion. He also presents methods of computing higher Franz-Reidemeister torsion, illustrates them with numerous examples, and describes various applications of higher Franz-Reidemeister torsion, particularly for the study of homology of mapping class groups. Packed with up-to-date information, the book provides a unique research and reference tool for specialists working in algebraic topology and K-theory.