Journal articles: 'Modes guidés'

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Amo, Alberto, and Gaëtan Lévèque. "Comprendre la topologie photonique." Photoniques, no. 124 (2024): 54–58. http://dx.doi.org/10.1051/photon/202412454.

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La topologie décrit les propriétés d’un objet qui ne changent pas quand il est déformé. En photonique elle permet de classer les bandes de fréquence d’un matériau structuré selon leurs symétries locales. À l’interface entre deux matériaux optiques de topologie distincte apparaissent des modes guidés de propagation très robuste. Nous donnons ici les notions fondamentales pour en comprendre les propriétés.

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Chorfi, Lahcène. "Étude mathématique des modes guidés dans un milieu élastique à symétrie de révolution." ESAIM: Mathematical Modelling and Numerical Analysis 30, no. 3 (1996): 299–342. http://dx.doi.org/10.1051/m2an/1996300302991.

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Vanderhaegen, Frédéric. "Pédagogie active et inclusive pour l’analyse de dangers de systèmes d’aide à la conduite basée sur la recherche de dissonances." J3eA 21 (2022): 2053. http://dx.doi.org/10.1051/j3ea/20222053.

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Cet article propose une adaptation des modules « analyse des risques ferroviaires et ingénierie mécanique » et « diagnostic de systèmes homme-machine appliqué aux systèmes ferroviaires ou guidés » de formation à distance du parcours INERSYG (Ingénierie Ferroviaire et Systèmes Guidés) du Master Transports Mobilités Réseaux de l’Université Polytechnique Hauts-de-France. A partir d’études de cas impliquant des aides à la conduite, il s’agit de déterminer les modes de fonctionnement et d’usage en s’appuyant sur différents formalismes tels que celui des arbres de défaillance, celui des réseaux de Petri, celui de bases de règles ou celui des graphes causaux. Les cas sont issus de témoignages d’expert, d’utilisateur ou via les réseaux sociaux par exemple. Ils font l’objet d’une analyse de danger approfondie suivant une démarche de pédagogie active et inclusive avec des groupes d’étudiants en dernière année de Master. Il s’agit d’identifier des dissonances, i.e. des conflits d’autonomie en termes de connaissances, de disponibilité ou de possibilités d’action pour un même décideur ou entre décideurs. Les résultats sont encourageants et permettent à chacun de découvrir des scénarios potentiellement dangereux relatifs à l’usage de systèmes d’aide à la conduite.

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Dhia, Anne-Sophie Bonnet-Ben, and Fabrice Mahé. "A guided mode in the range of the radiation modes for a rib waveguide." Journal of Optics 28, no. 1 (February 1997): 41–43. http://dx.doi.org/10.1088/0150-536x/28/1/008.

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Heddebaut, Odile. "Les difficultés de mise en œuvre des sites propres pour les modes de transport collectif guidés ou non. Le cas des lignes de bus à haut niveau de service." Recherche - Transports - Sécurité 24, no. 94 (March 30, 2007): 27–45. http://dx.doi.org/10.3166/rts.94.27-45.

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Chenchen Zhao, Chenchen Zhao, Ji Chen Ji Chen, Hanmeng Li Hanmeng Li, Tao Li Tao Li, and Shining Zhu Shining Zhu. "Mode division multiplexed holography by out-of-plane scattering of plasmon/guided modes." Chinese Optics Letters 16, no. 7 (2018): 070901. http://dx.doi.org/10.3788/col201816.070901.

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Makmul, J. "A Pedestrian Evacuation Model with Leaders during the Smoke Dispersion Based on a Social Force Model." Modelling and Simulation in Engineering 2023 (April 20, 2023): 1–21. http://dx.doi.org/10.1155/2023/1029883.

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The pedestrian evacuation process during the propagation of smoke in case with and without guider is investigated. The effects of leaders on the evacuation are considered. The model is based on the social force model for pedestrians’ motions. The advection–diffusion equation is applied for the dispersion of smoke. The movement direction of a guider is guided by the solution of the Eikonal equation. It relies on the desired speed and the smoke density. A pedestrian who is not a guider follows the rule termed ‘flow with the stream’ and ‘following the wall’. We perform different numerical experiments in a room with one and two exits. The results show that the guiders effect on the evacuation time when they are large number of individuals in simulation. It can help to increase the number of evacuees. With small number of individuals in the experiment, the effect of guiders on evacuation time is not obvious. Further, simulation results are found that the domain with two exits provides higher number of outside pedestrians than the domain with a single door. Longer evacuation time period can increase the number of evacuees. The visibility range of a pedestrian is reduced when an additional smoke source is added to the system. It decreases the number of evacuees. The results of the proposed model are discussed and compared with the existing models.

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Bonnet, A. "Guided modes of integrated optical guides. A mathematical study." IMA Journal of Applied Mathematics 60, no. 3 (June 1, 1998): 225–61. http://dx.doi.org/10.1093/imamat/60.3.225.

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Susanti, Diana, Rina Widiana, Ramadhan Sumarmin, and Silvi Susanti. "Student Motivation Against Using Guided Inquiry-Based Animal Physiology Practicum Guide." BIOEDUSCIENCE 5, no. 1 (April 30, 2021): 69–73. http://dx.doi.org/10.22236/j.bes/514994.

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Guidance on guided animal inquiry based practicology has been developed with valid, practical and effective results. The guide developed is guided inquiry-oriented which can help students find their own knowledge when practicum activities are carried out. Guides developed are also in accordance with the correct guiding component. The purpose of this study is to see the results of student motivation in using guided inquiry-based physiology practicum guides. This research is a development study using the 4D model, the data is processed using a percentage formula. The results of data processing show that the motivation of students who use practicum guides get a percentage of 80.2% (highly motivated) and those who do not use practicum guides is 84.14% (highly motivated) It can be concluded that students are highly motivated towards the use of practicum guided animal physiology guides

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Paula Muniz, Evânia de, and Carlos Eduardo Félix da Costa. "A journey of research and action: Tatiana Chagas Memória Municipal School, Jardim Maravilha, Guaratiba, Rio de Janeiro." MOJ Ecology & Environmental Sciences 9, no. 4 (July 29, 2024): 155–60. http://dx.doi.org/10.15406/mojes.2024.09.00320.

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This work shared the experiences of a research teacher at the Tatiana Chagas Memória Municipal School, located in Jardim Maravilha, Guaratiba/RJ. It took place from June 19 to December 20, 2023. The action research proposed an education based on the pillars of Human Rights, Rights of Nature and Inclusion, advocating a flexible approach that incorporated various languages and tools. The methodology adopted had as its central axis Art-Based Research (PEA), which incorporates several approaches. This research was guided by the theory proposed by economist Alberto Acosta in his book "Bem Viver" (2016), "Carta da Terra" (1992), and by Edward Wilson's concept of Biophilia (1984). To make the research viable, tools such as Design Thinking and the Affective Tree were used. With the aim of meeting the Sustainable Development Goals (SDGs).

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Elissalde, Bernard. "Guides, modes d'emploi." Espaces Temps 33, no. 1 (1986): 27–30. http://dx.doi.org/10.3406/espat.1986.3316.

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Wang, Yu Ning, and Li Jian Ren. "Research on Land Exploitation and Utilization Guided by Urban Rail Transit." Advanced Materials Research 450-451 (January 2012): 1207–10. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.1207.

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Under the background of rapid development of urban rail transit, how it effectively guides land exploitation and utilization becomes the key of urban land exploitation. Based upon the analysis of the land exploitation modes guided by urban rail transit home and abroad, this paper compares and analysis the relevant factors of land exploitation guided by urban rail transit, and proposes some suggestions for the land exploitation and utilization guided by urban rail transit in China.

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Jun Wu, Jun Wu, Changhe Zhou Changhe Zhou, Hongchao Cao Hongchao Cao, Anduo Hu Anduo Hu, Wenting Sun Wenting Sun, and Wei Jia Wei Jia. "Simplified mode analysis of guided mode resonance gratings with asymmetric coatings." Chinese Optics Letters 11, no. 6 (2013): 060501–60505. http://dx.doi.org/10.3788/col201311.060501.

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MAZALOVIC, K. "Interprofessionnalité en santé : mythe ou réalité ?" EXERCER 31, no. 165 (September 1, 2020): 291. http://dx.doi.org/10.56746/exercer.2020.165.291.

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L’interprofessionnalité en santé est dans l’air du temps. Demandez autour de vous, on vous répondra : « c’est l’avenir ! » À tel point que ce terme est devenu un mot éponge, que tout le monde utilise sans en connaître ni le sens ni les implications. Son absence de référencement dans les dictionnaires les plus couramment utilisés n’aide pas. Selon l’Organisation mondiale de la santé, l’interprofessionnalité correspond à « une activité qui se concrétise lorsque des spécialistes issus d’au moins deux professions travaillent conjointement et apprennent les uns des autres au sens d’une collaboration effective qui améliore les résultats en matière de santé » dans la mesure où « aucune profession ne peut fournir à elle seule une gamme complète de soins ». Ainsi, l’interprofessionnalité est plus que la simple juxtaposition des différentes professions, mais le résultat d’une co-construction autour d’un projet commun, fidèle à la maxime attribuée à Aristote « Le tout est plus que la somme des parties. » Les ingrédients nécessaires à cet aboutissement ne sont pas clairement décrits. Cela nécessite évidemment une interconnaissance ; mais si celle-ci est nécessaire, elle n’est pas suffisante. La proximité des acteurs est aussi nécessaire, mais insuffisante. La répétition des contacts dès la formation initiale, le respect mutuel obéissent à ce même principe. On pourrait enchaîner longtemps cette liste de critères nécessaires mais non suffisants. Finalement, il est nécessaire de développer une dynamique de groupe, qui ne peut s’installer que progressivement, en travaillant, en se formant, et en évoluant ensemble sur un territoire, avec ses possibilités, contraintes, ressources et besoins propres. Où en est-on aujourd’hui ? Une certaine ébauche de structuration interprofessionnelle existe, mais elle se heurte à l’inorganisation du système de santé et à des atavismes d’un autre âge : logiciels métier verrouillés et difficilement inter-opérants ; logiciels théoriquement labélisés « pluriprofessionnels » mais n’incluant que quelques professions de santé ; financements centrés sur une partie des professionnels et guidés par une grille qui ne tient compte que de critères administratifs ayant essentiellement l’avantage d’être aisément dénombrables ; changements périodiques des modes de rémunération afin d’apporter à chaque fois « plus de pérennité », dont la temporalité n’est pas celle de la construction d’une équipe, etc. À l’heure actuelle, en France, l’interprofessionnalité en santé en est à ses balbutiements. Le parallèle avec l’écologie peut être fait, car là aussi « c’est l’avenir ! »… Personne n’est contre, tout le monde veut en être, mais sans réellement changer de fonctionnement. Pour aller au-delà de l’affichage et que l’interprofessionnalité ne soit pas qu’un mot clé, elle doit se construire. Or, cette construction ne peut se faire qu’à l’échelle d’un territoire, et par ses acteurs. Les équipes souhaitant investir ce champ doivent se constituer de façon fonctionnelle et non par rapport à une grille d’objectifs, centrée sur une partie des acteurs. Cette construction ne peut se faire que dans un système de soins organisé autour de différents niveaux de soins complémentaires. Pour continuer le parallèle avec l’écologie, on ne peut espérer l’établissement d’une biodiversité pérenne en retournant la terre tous les six mois. Une équipe interprofessionnelle doit gagner en maturité pour passer d’une somme d’individualités bienveillantes à un collectif synergique et fonctionnel centré sur le patient et au service du patient.

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Kiscsatári, Ramóna, Eszter Nagy, Máté Szabó, Gábor Braunitzer, József Piffkó, Márk Fráter, and Márk Ádám Antal. "Comparison of the Three-Dimensional Accuracy of Guided Apicoectomy Performed with a Drill or a Trephine: An In Vitro Study." Applied Sciences 13, no. 17 (August 25, 2023): 9642. http://dx.doi.org/10.3390/app13179642.

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Guided apicoectomy performed with 3D-printed polymer-based static surgical guides is an emerging trend in endodontic surgery. Static-guided apicoectomy is carried out with either a drill or a trephine. The aim of this in vitro study was to assess the accuracy of osteotomy and apicoectomy performed through a polymer guide, with both drill and trephine, and to compare the accuracy achievable with the two instruments. Six plaster models of a maxilla master model with extracted human maxillary teeth in polymethyl-methacrylate resin were used. The modeled osteotomies were performed in these. The master model was CBCT-scanned, and digital surgical plans were prepared, based on which the surgical guides were printed. The plans contained both drill and trephine apicoectomies. Digital three-dimensional position analysis was performed with dedicated algorithms. A total of 39 drill and 47 trephine osteotomies were analyzed. A statistically significant difference between the two instruments was found only in the global deviation of the distal endpoint, indicating lower deviation for the trephine procedure (1.53 mm vs. 1.31 mm, p = 0.038). Nevertheless, from a clinical perspective, this distinction is inconsequential. The results suggest that, for all practical purposes, the two approaches to apicoectomy allow the same level of accuracy.

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Mousa, Hana Mohammed. "Simulation of An Asymmetric TM Metamaterial Waveguide Absorber." JOURNAL OF ADVANCES IN PHYSICS 4, no. 3 (June 26, 2014): 585–94. http://dx.doi.org/10.24297/jap.v4i3.2013.

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This paper tackles the simulation of an asymmetric Â TM mode absorption Â in a lossy metamaterial (left-handed) slab (LHM) sandwiched between a lossy substrate and coverd by a losseless dielectric cladding. The asymmetry solutions of the eigen value equation describeÂ lossy â€“guided modes with complex â€“valued propagation constants .Â The dispersion relations , normalized field and the longitudinal attenuationÂ were numerically solved for a given set of parameters: frequency range; filmâ€™s thicknesses; and TM mode order. I found out that high order modes which are guided in thinner films are generally have more loss of power than low-order modes since the mode attenuation along z-axis increases to negative values by the mode's order increase and the film thickness decrease . Moreover, Â LHM , atÂ incident wavelength =1.9, refractive index=andÂ at thickness , Â Â guides the power betterÂ thanÂ RHMÂ or metal one. This LHMÂ Â is appropriate for solar cell applications. For arbitrary LHM, at frequency band of wavelengt(600, 700 to 1200 )nm, Â the best absorption is attained at longer wavelengths and for lower order modes at wider films.

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Auliana Nasution, Ambiyar, Refdinal, Muhammad Arpan, and Elia Putri. "POGIL Learning Model—Metaphorming for Mobile-Based Cryptography Creation." International Journal of Interactive Mobile Technologies (iJIM) 18, no. 11 (June 12, 2024): 146–59. http://dx.doi.org/10.3991/ijim.v18i11.49057.

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The cryptography course has a mathematical basis and involves programming algorithms in the creation process while the implementation utilizes a programming language. Cryptography has been widely implemented in everyday life. However, the interest and learning outcomes of students in cryptography courses have not met expectations. Processoriented guided inquiry learning (POGIL) models integrated with metaphor. The POGIL metaphorming model is a student-centered learning model directed at active and creative thinking processes. One of the important processes in this stage is to develop a preliminary form of the product, conduct preliminary field testing, make the main product revision, conduct the main field testing, and perform operational product revisions. Based on the findings from the initial stage, an integrated learning model was developed for the cryptography course. Data for the model validation stage included model books, textbooks, lecturer’s guides, and student guides, calculated using content and construct validation techniques. Analysis of validity test data involves calculating the average score of all validator answers using Aiken’s coefficient v. The study results indicated that the model learning POGIL metaphorming is validly designed to enhance student learning processes and outcomes in cryptography courses.

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Ribera-Navarro, Aida, Ravikiran Shenoy, Gregory Cunningham, Vejay Vakharia, Alexander Gibson, Mehran Moazen, and Deepak M. Kalaskar. "Patient-specific 3D-printed surgical guides for pedicle screw insertion: comparison of different guide design approaches." Journal of 3D Printing in Medicine 5, no. 2 (June 2021): 71–82. http://dx.doi.org/10.2217/3dp-2021-0002.

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Aim: Patient-specific 3D-printed guides for pedicle screw insertion in spinal deformity surgery offer an alternative to image-guided, robotic and free-hand methods. Different design features can impact their accuracy and clinical applicability. The aim of this study was to compare the performance of three different guide designs with the nonguided free-hand technique. Materials & methods: 3D-printed guides were design and tested using anatomical models of human spines and porcine cadaveric specimens. Three different guided groups (low, medium and full contact) and one nonguided group was formed. Results & conclusion: The design approach affected level of accuracy of screw placement. A variability in terms of accuracy of screw insertion between surgeon’s experience using nonguided/guided techniques was also observed, suggesting benefit for junior surgeons in improving surgical accuracy.

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Egorov, A. A., K. P. Lovetsky, A. L. Sevastianov, and L. A. Sevastianov. "Thin-film waveguide L¨uneburg lens in the model of adiabatic guided modes." Mathematical Modelling and Geometry 11, no. 2 (November 2, 2023): 1–12. http://dx.doi.org/10.26456/mmg/2023-1121.

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A mathematical model is presented that describes the processes of propagation and transformation of coherent electromagnetic radiation in a multilayer three-dimensional (3D) smoothly irregular integrated optical waveguide, called the model of adiabatic guided modes. Its presentation and individual applications in smoothly irregular integrated optical waveguides contain two short stories: • two-dimensional evolution of guided modes is described; • boundary conditions are formed on non-horizontal planes tangent to media interfaces, which lead to the description of hybridization of guided modes and other interesting phenomena. The model of adiabatic guided modes generalizes the cross-section method (reference waveguide method) with nonlocal boundary conditions for the transverse guided mode operator in the reference waveguide cross section to the case of twodimensional evolution, leading to the description of a number of new effects.

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Vassallo, Charles. "Pseudo-modes et guides optiques." Annales des Télécommunications 43, no. 1-2 (January 1988): 48–65. http://dx.doi.org/10.1007/bf02995071.

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Berta Garcia-Fernandez, Berta Garcia-Fernandez, Daniel Vazquez-Molini Daniel Vazquez-Molini, Antonio Alvarez Fernandez-Balbuena Antonio Alvarez Fernandez-Balbuena, Angel Garcia-Botella Angel Garcia-Botella, and Juan Carlos Martinez Anton Juan Carlos Martinez Anton. "Light losses in hollow, prismatic light guides related to prism defects: a transmittance model." Chinese Optics Letters 13, no. 9 (2015): 092201–92205. http://dx.doi.org/10.3788/col201513.092201.

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Butler, John C. "Coupling between guided-wave optical modes—a dynamical system model." Optical Engineering 46, no. 12 (December 1, 2007): 127203. http://dx.doi.org/10.1117/1.2815723.

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Vaughan, Martin, Hadi Susanto, Ian Henning, and Mike Adams. "The Overlap Factor Model of Spin-Polarised Coupled Lasers." Photonics 8, no. 3 (March 20, 2021): 83. http://dx.doi.org/10.3390/photonics8030083.

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A general model for the dynamics of arrays of coupled spin-polarised lasers is derived. The general model is able to deal with waveguides of any geometry with any number of supported normal modes. A unique feature of the model is that it allows for independent polarisation of the pumping in each laser. The particular geometry is shown to be introduced via ’overlap factors’, which are a generalisation of the optical confinement factor. These factors play an important role in determining the laser dynamics. The model is specialised to the case of a general double-guided structure, which is shown to reduce to both the spin flip model in a single cavity and the coupled mode model for a pair of guides in the appropriate limit. This is applied to the particular case of a circular-guide laser pair, which is analysed and simulated numerically. It is found that increasing the ellipticity of the pumping tends to reduce the region of instability in the plane of pumping strength versus guide separation.

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Jia, Peizhi, Bin Zhang, Qibo Feng, and Fajia Zheng. "Simultaneous Measurement of 6DOF Motion Errors of Linear Guides of CNC Machine Tools Using Different Modes." Sensors 20, no. 12 (June 18, 2020): 3439. http://dx.doi.org/10.3390/s20123439.

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Based on the prior work on the six degrees of freedom (6DOF) motion errors measurement system for linear axes, and for the different types of machine tools and different installation methods, this study used a ray tracing idea to establish the measurement models for two different measurement modes: (1) the measurement head is fixed and the target mirror moves and (2) the target mirror is fixed and the measurement head moves. Several experiments were performed on the same linear guide using two different measurement modes. The comparative experiments show that the two measurement modes and their corresponding measurement models are correct and effective. In the actual measurement process, it is therefore possible to select the corresponding measurement model according to the measurement mode. Furthermore, the correct motion error evaluation results can be obtained.

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Setiani, Titik, Supangat Supangat, and Dyah Pravitasari. "Pengaruh Model Pembelajaran Inkuiri Terbimbing terhadap Keaktifan Belajar Siswa di Sekolah Dasar." FingeR: Journal of Elementary School 1, no. 1 (July 13, 2022): 1–10. http://dx.doi.org/10.30599/finger.v1i1.92.

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The activeness of students in teaching and learning activities undergoes various things, including the learning model used by teachers when teaching. The learning model uses the inquiry learning model where its process involves the activeness of students in teaching and learning activities to create critical thinking that is one of logical thinking way focused on decision-making to overcome the problem. In the guided inquiry, the student role is more dominant and active whereas the teacher directs and guides the right way. The problem that will be explained is how it affects the guided inquiry learning model on the activeness of 5th-grade students in SD Negeri Pujorahayu. The research method uses a quasi-experimental design whereas design research uses nonequivalent control group design. This research analyzes 2 classes that are 5th grade of A and B. The result of this research uses a simple linear regression test that the significant value was 0,000 ≤ 0,05 so Ha is accepted and Ho is declined which meant a significant affect between variable of the guided inquiry learning model on the activeness of 5th grade students in SD Negeri Pujorahayu. Explained the percentage of effect of puberty variable (X) on the student learning activeness (Y) is R square of 0,603 meaning that independent effect (guided inquiry learning model) on dependent variable (learning activeness) of 60%. So, guided inquiry learning model effects of 60% on the student learning activeness.

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Bunakov, Oleg Aleksandrovich, Liudmila Valerievna Semenova, Firuz Fakhritdinovich Zokhidov, and Boris Mojshevich Eidelman. "Accreditation of Tour Guides: The World Experience and the Implementation in Russian Hospitality Industry." International Journal of Financial Research 12, no. 1 (December 25, 2020): 232. http://dx.doi.org/10.5430/ijfr.v12n1p232.

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The purpose of the study is to consider professional accreditation of tour guides as an important mechanism for improving and maintaining the overall image of tourist destinations, analyze the main current world types of guide certification and then present another certification model as a mechanism for improving the quality of services provided. The first part of the article describes the results of a publications review and the results of an empirical study of guide accreditation programs. In countries with developed tourism, there is no single approach to the accreditation of guides, and governmental institutions, together with professional communities, decide if it is mandatory. In its second part, the article overviews the approaches to the accreditation of guides in some regions of the Russian Federation. The necessity to regulate the market of guided tour services is certain since poor quality services develop a negative impression of travel destinations, and only professionally trained guides can tell a good story about a particular place or object. The lack of government regulation in the provision of services by tour guides has resulted in a significant proportion of incompetent people who often form a negative impression on tourists. This undoubtedly affects both the brand of tourist destinations in the eyes of current and potential visitors, and economic indicators, since an insufficient influx of tourists does not encourage the development of destinations. The value of the work lies in systematizing the international practices of individual tourist destinations, examining the experience of tour guides in the Russian Federation, and analyzing the legal framework of guided tours. This study contributes to a better understanding of the need to introduce the process of accreditation of guides in the Russian Federation.

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Arriaga, J. "Effective index model and guided modes in a photonic crystal fiber." physica status solidi (b) 242, no. 9 (July 2005): 1868–71. http://dx.doi.org/10.1002/pssb.200461760.

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Mumri, Auza Fadila, and Syamsi Aini. "Pengembangan Media Pembelajaran Powerpoint Interaktif berbasis Inkuiri Terbimbing pada Materi Reaksi Redoks Kelas XII SMA/MA." Edukimia 1, no. 1 (August 1, 2019): 30–37. http://dx.doi.org/10.24036/ekj.v1.i1.a3.

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The 2013 curriculum is implemented in senior high school, emphasizing the scientific approach. Learning model that is able to make students active and can develop science process skills is guided inquiry. Guided inquiry consists of several syntax that can guides students in learning process, consisting of orientation, exploration, concept formation, application, and closing. Students are guided by key questions related to redox reaction material of class XII SMA/MA which is applied in instructional media in the form of interactive powerpoints. The type of this research was reseach and development with 4-D models. Powerpoint interactive validity testing is carried out by 3 chemistry lecturers at FMIPA UNP and 2 chemistry teachers at SMAN 14 Padang, the powerpoint interactive have an average kappa moments 0.91 which is very high level of validity. While the module practicality test is by 3 chemistry teachers and 25 XII grade IPA at SMAN 14 Padang, the average kappa moment from the results of practicality test of the module by the teachers is 0.93 and by the student is 0.90 with very high category. From the research can be concluded that interactive powerpoint is valid and practical

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Jesudass, Neethi, Vidya Ramkumar, Shuba Kumar, and Lakshmi Venkatesh. "Development of a conceptual framework to understand the stakeholder’s perspectives on needs and readiness of rural tele-practice for childhood communication disorders." Wellcome Open Research 9 (May 8, 2024): 239. http://dx.doi.org/10.12688/wellcomeopenres.20977.1.

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Background Tele-practice promotes universal and equitable access to quality health services and emerged as an alternative to overcome physical barriers to intervention access in the 90s. There has been a steady increase in adoption since then, and during the COVID-19 pandemic, there was a surge in online modes of healthcare service delivery. Yet, tele-practice adoption and utilization in rural and remote areas are not spontaneous. Therefore, as a first step, prior to the implementation of a comprehensive tele-practice model, a baseline situational analysis was undertaken to assess the needs and readiness of parents of children with disabilities and different cadres of health care providers towards accepting tele-practice services in their settings. This paper describes the process of development of the conceptual framework that guided the baseline needs and readiness assessment (situational analysis). Methods The Bowen's feasibility framework served as the primary framework to evaluate the feasibility outcomes of the implementation. Therefore, this framework also guided the baseline situational analysis. For specificity of the framework to tele-practice, several telemedicine planning frameworks relevant for low- and middle-income countries were reviewed to identify and map suitable constructs and attributes to the Bowen’s constructs. A description of the framework selection process and a review of each of the selected telemedicine frameworks are provided. Results The constructs and attributes from this conceptual framework were used to develop the guides for focus group discussions (FGDs) and semi-structured interviews (SSIs). The guides were prepared separately for each stakeholder group. Conclusions The developed framework facilitated the assessment of needs and readiness suited to the context and among various stakeholders involved in the proposed implementation of the comprehensive model of tele-practice for childhood communication disorders in rural communities.

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Ding Shaobo, 丁少博, 张雅荔 Zhang Yali, and 张坤 Zhang Kun. "基于视频引导模型更新的视频肤色增强方法." Laser & Optoelectronics Progress 60, no. 2 (2023): 0210014. http://dx.doi.org/10.3788/lop220685.

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Qian, Kun, Wei Wei, and Zhou Yu. "A Student-Teacher Architecture for Dialog Domain Adaptation Under the Meta-Learning Setting." Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 15 (May 18, 2021): 13692–700. http://dx.doi.org/10.1609/aaai.v35i15.17614.

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Numerous new dialog domains are being created every day while collecting data for these domains is extremely costly since it involves human interactions. Therefore, it is essential to develop algorithms that can adapt to different domains efficiently when building data-driven dialog models. Most recent research on domain adaption focuses on giving the model a better initialization, rather than optimizing the adaptation process. We propose an efficient domain adaptive task-oriented dialog system model, which incorporates a meta-teacher model to emphasize the different impacts between generated tokens with respect to the context. We first train our base dialog model and meta-teacher model adversarially in a meta-learning setting on rich-resource domains. The meta-teacher learns to quantify the importance of tokens under different contexts across different domains. During adaptation, the meta-teacher guides the dialog model to focus on important tokens in order to achieve better adaptation efficiency. We evaluate our model on two multi-domain datasets, MultiWOZ and Google Schema-Guided Dialogue, and achieve state-of-the-art performance.

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Fliss, Sonia, Dirk Klindworth, and Kersten Schmidt. "Robin-to-Robin transparent boundary conditions for the computation of guided modes in photonic crystal wave-guides." BIT Numerical Mathematics 55, no. 1 (September 12, 2014): 81–115. http://dx.doi.org/10.1007/s10543-014-0521-1.

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Lumolos, Gerry, Dokri Gumolung, and Joice Caroles. "Studi Kelayakan Penuntun Praktikum Asam Basa Berbasis Bahan Lingkungan Menggunakan Model 3-D Dan Penerapan Metode Inkuiri Terbimbing Untuk Meningkatkan Hasil Belajar Siswa SMA Negeri 1 Tenga." Oxygenius Journal Of Chemistry Education 1, no. 2 (December 27, 2019): 40. http://dx.doi.org/10.37033/ojce.v1i2.87.

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Practicum guides are printed teaching materials that students can use in the learning process. This development research aims to determine the feasibility of an acid base-based practicum guide for environmental materials with a 3-D model and to improve student learning outcomes through practicum activities and the application of guided inquiry methods. The subject of this research was class XI IPA 1 at SMA Negeri 1 Tenga. The feasibility test for large groups has an average percentage of 88.24% which means that this practical guide is suitable for use with valid qualifications. Student learning outcomes using post test scores with the technique of statistical analysis of one sample t-test (one sample t-test). The results of the one-sample t-test hypothesis at a level of α = 5% were obtained tcount = 4.604> ttable = 1.708. The results of this study indicate that the guidelines for acid-base-based practicum for environmental materials are appropriate to be used in chemistry learning, and the use of acid-based practicum guides for environmental materials with the application of guided inquiry methods can improve student learning outcomes in acid-base material

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Morínigo Martínez, Macarena, and Margarita Samudio. "Etapas del modelo conductual de los estilos de vida propuestos por las guías alimentarias del Paraguay en adultos." Memorias del Instituto de Investigaciones en Ciencias de la Salud 13, no. 1 (April 1, 2015): 41–48. http://dx.doi.org/10.18004/mem.iics/1812-9528/2015.013(01)41-048.

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DEMIROVIĆ BAJRAMI, Dunja, Tatiana N. TRETIAKOVA, Yulia A. SYROMIATNIKOVA, Marko D. PETROVIĆ, and Milan M. RADOVANOVIĆ. "TOUR GUIDE'S COMPETENCIES AS PREDICTORS OF TOURISTS' SUSTAINABLE BEHAVIOR – EVIDENCE FROM NATIONAL PARKS." GeoJournal of Tourism and Geosites 32, no. 4 (December 31, 2020): 1277–82. http://dx.doi.org/10.30892/gtg.32413-569.

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The aim of the study was to identify which tour guide's competencies can be predictors of environmentally sustainable behavior of visitors of national parks. Authors gathered answers through questionnaires from 305 visitors of two national parks located in Serbia. The results showed that guide's knowledge and telling stories in an engaging and interesting way were predictors for almost all learning outcomes. Also, guides who are energetic and show that they enjoy doing their job, can arouse visitors' interest in the presented topic, create pleasant memories and serve as a role model for sustainable behavior after the tour ends.

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Ganske, Anette, Daniel Heydebreck, Heinke Höck, Angelina Kraft, Johannes Quaas, and Amandine Kaiser. "A short guide to increase FAIRness of atmospheric model data." Meteorologische Zeitschrift 29, no. 6 (November 25, 2020): 483–91. http://dx.doi.org/10.1127/metz/2020/1042.

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Sevastianov, Anton L. "Asymptotic method for constructing a model of adiabatic guided modes of smoothly irregular integrated optical waveguides." Discrete and Continuous Models and Applied Computational Science 28, no. 3 (December 15, 2020): 252–73. http://dx.doi.org/10.22363/2658-4670-2020-28-3-252-273.

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The paper considers a class of smoothly irregular integrated optical multilayer waveguides, whose properties determine the characteristic features of guided propagation of monochromatic polarized light. An asymptotic approach to the description of such electromagnetic radiation is proposed, in which the solutions of Maxwells equations are expressed in terms of the solutions of a system of four ordinary differential equations and two algebraic equations for six components of the electromagnetic field in the zero approximation. The gradient of the phase front of the adiabatic guided mode satisfies the eikonal equation with respect to the effective refractive index of the waveguide for the given mode.The multilayer structure of waveguides allows one more stage of reducing the model to a homogeneous system of linear algebraic equations, the nontrivial solvability condition of which specifies the relationship between the gradient of the radiation phase front and the gradients of interfaces between thin homogeneous layers.In the final part of the work, eigenvalue and eigenvector problems (differential and algebraic), describing adiabatic guided modes are formulated. The formulation of the problem of describing the single-mode propagation of adiabatic guided modes is also given, emphasizing the adiabatic nature of the described approximate solution of Maxwells equations.

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Pitman, Jeremy, Jan Cosyn, Véronique Christiaens, Faris Younes, Thomas De Bruyckere, Stijn Vervaeke, and Maarten Glibert. "Examining the Influence of Freehand, Pilot-Guided, and Fully Guided Surgical Protocols on the Accuracy of Immediately Placed Implants—An In Vitro Study." Applied Sciences 14, no. 20 (October 11, 2024): 9253. http://dx.doi.org/10.3390/app14209253.

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This study aimed to evaluate the influence of the guidance level on the accuracy of immediately placed implants. Methods: Eighteen identical maxillary models (randomly split into three groups (n = 6): fully guided (FG), pilot-guided (PG), and freehand (FH)) were used to place 72 implants (n = 24). After placement, the mean global, angular, mesial–distal, buccal–palatal, and vertical deviation at the platform and apex of the placed implants, relative to the preoperatively planned positions, was calculated. Results: Significant differences in global and mesial–distal deviation were found between implants in the FG group and implants in the PG and FH groups. Significant differences were also found between the implants in the FG and FH groups as well as the implants in the PG and FH groups in terms of angular and mesial–distal apex deviation. Finally, significant differences were found between the implants in the FG and PG groups in terms of buccal–palatal platform deviation. Conclusions: The results of this in vitro study show that immediate implants placed using fully guided surgical guides have significantly less deviation, and are therefore more accurate, than implants placed freehand or using pilot guides, but this should be further validated in a clinical trial.

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Florjaāczyk, M., and R. Tremblay. "Tapered optical couplers with grating: Beyond the weak-guidance limit." Canadian Journal of Physics 71, no. 1-2 (January 1, 1993): 5–10. http://dx.doi.org/10.1139/p93-002.

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We describe the operation of a grating-assisted optical coupler consiting of two different curved slab wave guides. A version of vectorial, nonorthogonal coupled-mode theory based on local modes is applied. The coupled-mode equations contain mode overlap terms and coupling terms, which vary with distance. These equations are solved numerically for even-transverse magnetic modes propagating in the non-weakly guided slabs. We show output light powers as a function of the input wavelength assuming a condition of contradirectional coupling. For comparison we also show the result in the limit of weak guidance and a result from the vectorial theory without mode overlaps.

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Butler, John C. "Publisher's Note: Coupling between guided-wave optical modes—a dynamical system model." Optical Engineering 47, no. 4 (April 1, 2008): 049801. http://dx.doi.org/10.1117/1.2904921.

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Msallem, Bilal, Lara Veronesi, Michel Beyer, Florian S. Halbeisen, Michaela Maintz, Adrian Franke, Paula Korn, Adrian Dragu, and Florian M. Thieringer. "Evaluation of the Dimensional Accuracy of Robot-Guided Laser Osteotomy in Reconstruction with Patient-Specific Implants—An Accuracy Study of Digital High-Tech Procedures." Journal of Clinical Medicine 13, no. 12 (June 19, 2024): 3594. http://dx.doi.org/10.3390/jcm13123594.

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Background/Objective: With the rapid advancement in surgical technologies, new workflows for mandibular reconstruction are constantly being evaluated. Cutting guides are extensively employed for defining osteotomy planes but are prone to errors during fabrication and positioning. A virtually defined osteotomy plane and drilling holes in robotic surgery minimize potential sources of error and yield highly accurate outcomes. Methods: Ten mandibular replicas were evaluated after cutting-guided saw osteotomy and robot-guided laser osteotomy following reconstruction with patient-specific implants. The descriptive data analysis summarizes the mean, standard deviation (SD), median, minimum, maximum, and root mean square (RMS) values of the surface comparison for 3D printed models regarding trueness and precision. Results: The saw group had a median trueness RMS value of 2.0 mm (SD ± 1.7) and a precision of 1.6 mm (SD ± 1.4). The laser group had a median trueness RMS value of 1.2 mm (SD ± 1.1) and an equal precision of 1.6 mm (SD ± 1.4). These results indicate that robot-guided laser osteotomies have a comparable accuracy to cutting-guided saw osteotomies, even though there was a lack of statistical significance. Conclusions: Despite the limited sample size, this digital high-tech procedure has been shown to be potentially equivalent to the conventional osteotomy method. Robotic surgery and laser osteotomy offers enormous advantages, as they enable the seamless integration of precise virtual preoperative planning and exact execution in the human body, eliminating the need for surgical guides in the future.

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Kurniawan, Prihadi, and Agus Wayan Yulianto. "Development of Instructional Materials for Introduction to Algebraic Structures: Ring Theory with Guided Discovery." Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang 7, no. 2 (July 12, 2023): 175. http://dx.doi.org/10.31331/medivesveteran.v7i2.2515.

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This study presents the development of Teaching Materials for Introduction to Algebraic Structures: Ring Theory with Guided Discovery, addressing the need for comprehensive instructional resources in abstract algebra courses. Following the ADDIE development model (Analysis, Design, Development, Implementation, Evaluation), the research systematically creates and refines the Teaching Materials. The resulting resource includes a title page, carefully crafted learning objectives aligned with the desired Student Learning Outcomes (SLP), and well-organized content arranged into 12 chapters. Each chapter incorporates student learning guides and engaging activities, encouraging active participation and independent exploration. The Teaching Materials undergo rigorous validation, with results indicating a validity level of 88%, meeting the necessary criteria for instructional effectiveness. Based on the evaluation conducted at the final stage of the study, the Teaching Materials demonstrate high practicality, scoring 87%, and are deemed effective with a quality rating of 66%. This study contributes significantly to the field of mathematics education by addressing the need for effective lecture companions in introductory algebraic structures courses. By incorporating guided discovery techniques, the developed Teaching Materials foster increased student activity and knowledge construction. The utilization of the ADDIE development model ensures a systematic and well-structured approach to material creation. The comprehensive organization of content, along with the inclusion of student learning guides and activities, provides a cohesive and interactive learning experience for students. The validation and evaluation results further underscore the efficacy of the Teaching Materials, affirming their validity and practicality in promoting enhanced student learning outcomes. These findings highlight the potential of the Teaching Materials for Introduction to Algebraic Structures: Ring Theory with Guided Discovery to positively impact algebraic structures education and contribute to the pedagogical advancement in mathematics instruction. Keywords: guided discovery, teaching material development, ring theory.

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Lehmann, B. F., and S. G. Hutton. "Self-Excitation in Guided Circular Saws." Journal of Vibration and Acoustics 110, no. 3 (July 1, 1988): 338–44. http://dx.doi.org/10.1115/1.3269522.

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The paper presents the results of an experimental and analytical study into the vibrational characteristics of guided rotating saw blades that are not perfectly flat. Experimental results are presented that show the nature of the vibrations induced by the interaction between the guides and the blade. An analytical model is developed that includes the effect of the interaction between the guide and the blade, and this model may be used as a design tool in avoiding the self-excited resonances that exist in the coupled blade/guide system.

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Rivera-Pérez, E., A. Díez, J. L. Cruz, E. Silvestre, and M. V. Andrés. "Analysis of whispering gallery modes resonators: wave propagation and energy balance models." Suplemento de la Revista Mexicana de Física 2, no. 1 Jan-Mar (March 31, 2021): 81–86. http://dx.doi.org/10.31349/suplrevmexfis.2.1.81.

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Electromagnetic whispering gallery modes (WGM) are surface waves guided by the curvature of an interface. Microspheres, microdisks and microcylinders –as for example standard optical fibers– are high quality microresonators for the WGM. In fact, they can be regarded as compact and small ring resonators. Here, we present a comparison between wave propagation and energy balance models, stablishing the equivalence and discussing the basic characteristics of these two complementary approaches.

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Nova, Idia Ofela, Fitri Arsih, Relsas Yogica, and Lufri Lufri. "The Effect of Guided Inquiry Learning Model Assisted by Mind Map Toward Students’ Science Cognitive Competency at the VIII Grade of SMP Negeri 27 Padang." Jurnal Atrium Pendidikan Biologi 4, no. 1 (March 11, 2019): 155. http://dx.doi.org/10.24036/apb.v4i1.5486.

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The low science cognitif competency of students is caused by several problem encountered during the learning process, between the learning model that is applied has not involved students actively in the learning process. One of the efforts that is done to increase students' learning competencies in science is to apply the Guided Inquiry learning model assisted by Mind Map. This learning assisted by the Mind Map guides students to be active. This study aims to reveal the influence of the use of the Guided Inquiry learning model assisted by Mind Map to the learning competencies of science students. This research was conducted at SMP Negeri 27 Padang. in material of KD 3.7 about Circulatory System. This research is an experimental research using the Randomized Control Group Posttest Only Design. The study population was all grade VIII students of SMP Negeri 27 Padang. Sampling was taken by using purposive sampling technique. The control class used a conventional learning model which is commonly used in the class and experimental class using the Guided Inquiry learning model assisted by Mind Map. The research instrument used was a test of learning outcomes. The results of the t test were known that in the knowledge competency tcount> t table (2.76> 1.67). This showed that the hypothesis was accepted. So, it can be concluded that the Guided Inquiry learning model assisted by Mind Map has a positive effect on students' learning cognitive competencies in science.

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Rahmat, Anggi Datiatur, Heru Kuswanto, and Insih Wilujeng. "Integrating Pentatonic Angklung into Physics Experiment to Identify Multiple Representation Skills in Junior High School." Jurnal Ilmiah Pendidikan Fisika Al-Biruni 12, no. 1 (May 15, 2023): 77. http://dx.doi.org/10.24042/jipfalbiruni.v12i1.15984.

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Angklung is a traditional musical instrument from West Java that can be used as a learning medium for sound concepts. The study focuses on pentatonic Angklung as a musical instrument commonly used in Ngaseuk ceremonies as rice planting rituals in the Baduy tribe. This study aims to report the integration of pentatonic Angklung into physics experiments and investigate multiple representation skills. Technology-based mobile used as an experimental tool is Phypox. The designed activity aims to identify multiple representation skills using guided-inquiry models in four stages: Open, Explore, Create, and Share. The study participants are 31 8th-grade students at one of the junior high schools in West Java Province, Indonesia. Experiment activities investigate variables that affect the frequency of the pentatonic Angklung. A worksheet guides experiment activities following the syntax of the guided-inquiry model. The study results show that students use different representations at each stage in the worksheet. Students use four representations in this experimental activity: verbal, mathematical, pictorial, and graphical. It can be concluded that integrating pentatonic Angklung into physics experiments can identify students' multiple representation skills in junior high school.

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Ramatlo, Dineo A., Daniel N. Wilke, and Philip W. Loveday. "Digital Twin Hybrid Modeling for Enhancing Guided Wave Ultrasound Inspection Signals in Welded Rails." Mathematical and Computational Applications 28, no. 2 (April 10, 2023): 58. http://dx.doi.org/10.3390/mca28020058.

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Guided wave ultrasound (GWU) systems have been widely used for monitoring structures such as rails, pipelines, and plates. In railway tracks, the monitoring process involves the complicated propagation of waves over several hundred meters. The propagating waves are multi-modal and interact with discontinuities differently, increasing complexity and leading to different response signals. When the researcher wants to gain insight into the behavior of guided waves, predicting response signals for different combinations of modes becomes necessary. However, the task can become computationally costly when physics-based models are used. Digital twins can enable a practitioner to deal systematically with the complexities of guided wave monitoring in practical or user-specified settings. This paper investigates the use of a hybrid digital model of an operational rail track to predict response signals for varying user-specified settings, specifically, the prediction of response signals for various combinations of modes of propagation in the rail. The digital twin hybrid model employs a physics-based model and a data-driven model. The physics-based model simulates the wave propagation response using techniques developed from the traditional 3D finite element method and the 2D semi-analytical finite element method (FEM). The physics-based model is used to generate virtual experimental signals containing different combinations of modes of propagation. These response signals are used to train the data-driven model based on a variational auto-encoder (VAE). Given an input baseline signal containing only the most dominant mode excited by a transducer, the VAE is trained to predict an inspection signal with increased complexity according to the specified combination of modes. The results show that, once the VAE has been trained, it can be used to predict inspection signals for different combinations of propagating modes, thus replacing the physics-based model, which is computationally costly. In the future, the VAE architecture will be adapted to predict response signals for varying environmental and operational conditions.

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Khadem, Mohsen, Carlos Rossa, Ron S. Sloboda, Nawaid Usmani, and Mahdi Tavakoli. "Ultrasound-Guided Model Predictive Control of Needle Steering in Biological Tissue." Journal of Medical Robotics Research 01, no. 01 (March 2016): 1640007. http://dx.doi.org/10.1142/s2424905x16400079.

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In needle-based medical procedures, beveled tip flexible needles are steered inside soft tissue to reach the desired target locations. In this paper, we have developed an autonomous image-guided needle steering system that enhances targeting accuracy in needle insertion while minimizing tissue trauma. The system has three main components. First is a novel mechanics-based needle steering model that predicts needle deflection and accepts needle tip rotation as an input for needle steering. The second is a needle tip tracking system that determines needle deflection from the ultrasound images. The needle steering model employs the estimated needle deflection at the present time to predict needle tip trajectory in the future steps. The third component is a nonlinear model predictive controller (NMPC) that steers the needle inside the tissue by rotating the needle beveled tip. The MPC controller calculates control decisions based on iterative optimization of the predictions of the needle steering model. To validate the proposed ultrasound-guided needle steering system, needle insertion experiments in biological tissue phantoms are performed in two cases–with and without obstacle. The results demonstrate that our needle steering strategy guides the needle to the desired targets with the maximum error of 2.85[Formula: see text]mm.

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TRĘBACZ, PIOTR, ANNA BARTECZKO, ALEKSANDRA KURKOWSKA, MATEUSZ PAWLIK, and MAREK GALANTY. "Accuracy of CAD/CAM and 3D printing in the treatment of feline femoral neck fracture." Medycyna Weterynaryjna 79, no. 06 (2023): 6772–2023. http://dx.doi.org/10.21521/mw.6772.

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The aim of this study was to investigate whether a CT scan provides accurate bone surface information for feline bone model development. The second part of study consisted of 3D printing of feline femoral bone models with and without femoral neck fractures (31-B1 and 31-B2 in AO VET classification), as well as the development and 3D printing of drill guides for treatment of femoral neck fractures. The study was carried out on eight models of femoral bones and four drill guides. Initially, trial models of the right and left femurs without neck fractures and trial drill guides were used. Radiographs showed that the use of the prototype guides made it possible to drill holes in the axes of the necks of the femurs. Then, after assessing the correct operation of the guides and improving their adhesion to the bone surface by smoothing the inner surfaces of the guide bases, final bone models without femoral neck fracture, models with fractures 31-B1 and 31-B2, and final drill guides were printed. All models featured a 2.7 × 30 mm positional cortical screw. Radiographs of the models, made after inserting screws, showed that the implants were placed as intended. Also in the longitudinal sections of the heads and necks of the femoral bones of the models without fractures, the implants were positioned in the intended places.

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Shao Tianyu, 邵天宇, 谷建强 Gu Jianqiang, and 师文桥 Shi Wenqiao. "太赫兹导模谐振滤波器的自动化设计方法研究." Chinese Journal of Lasers 48, no. 20 (2021): 2014001. http://dx.doi.org/10.3788/cjl202148.2014001.

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Journal articles on the topic 'Modes guidés'

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