Littérature scientifique sur le sujet « Innovative connections »
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Articles de revues sur le sujet "Innovative connections"
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El-Ghazaly, Hany Ahmed, et Heyad Saud Al-Zamel. « An innovative detail for precast concrete beam–column moment connections ». Canadian Journal of Civil Engineering 18, no 4 (1 août 1991) : 690–710. http://dx.doi.org/10.1139/l91-084.
Texte intégralRésumé :
A new detail is introduced for precast concrete beam-to-column moment connections. The detail consists of a connecting steel frame used to mechanically connect the threaded end protruding reinforcing bars from beam and column. The connection detail is made convenient to assemble where the erection method resembles that of steel construction. No idle crane time is necessary, since the connecting steel frame is designed to carry the beam's own weight. When the connection construction is completed, the joint functions as a moment resisting hard connection. The experimental testing program involved testing of twelve full-scale specimens in addition to a pilot test. Of the twelve tests seven are flexural tests, three are shear tests, and two are monolithic flexural tests for comparison. Modes of failure in the flexural tests were mainly due to rupture of tension reinforcement; however, premature slippage of the rebars may occur under certain conditions, but could be conveniently prevented. In the shear tests, diagonal tension crack failure predominated. If the connection parameters are properly selected, the connection will be capable of developing the beam's full plastic moment and undergo sufficient rotation before collapse. Key words: precast concrete, moment connections, connecting steel frame, stiffness, strength, ductility.
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Behnamfar, Farhad, Hadi Rafizadeh et Mortza Omidi. « Innovative connections for precast concrete moment resisting frames ». Bulletin of the New Zealand Society for Earthquake Engineering 48, no 3 (30 septembre 2015) : 204–21. http://dx.doi.org/10.5459/bnzsee.48.3.204-221.
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This research work presents new details for moment connections in precast concrete structures satisfying both design and practice criteria. In this paper the results of the numerical study on the connections are presented. For the analysis, the ANSYS software is selected because of its diversity in nonlinear analysis. By calculating the monotonic load-displacement curve of each connection, the connections are evaluated for their stiffness, strength, and ductility.
The compressive strength of the connection concrete is taken to be 30, 35 and 40 MPa, for each round of analysis. The results of the analysis show that the proposed connections are stiff enough to be moment resisting and to be emulating an equivalent monolithic, or basic connection. It is illustrated that the connections are stronger but somewhat less ductile than the basic connection regardless of the concrete strengths examined. Moreover, it is shown that in each precast connection while increasing the compressive strength of concrete does not affect the connection stiffness considerably, it increases the ultimate load and ductility of the connection. As a main result of this study, the suggested connection details are categorized based on their stiffness, strength, and ductility. The suggested connections can be used in moment resisting precast concrete buildings based on the desired strength and ductility.
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Rozanova, Lyudmila. « Innovative connections : incentives, interests, barriers ». Drukerovskij Vestnik, no 5 (octobre 2022) : 35–40. http://dx.doi.org/10.17213/2312-6469-2022-5-35-40.
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Palmer, Carolin, et Victoria Cyrus. « Play hard, innovate hard ? – Der Einfluss der Dunklen Triade auf Resilienz und innovatives Arbeitsverhalten ». ZfKE – Zeitschrift für KMU und Entrepreneurship : Volume 68, Issue 2 68, no 2 (1 avril 2020) : 99–124. http://dx.doi.org/10.3790/zfke.68.2.99.
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Zusammenfassung Entrepreneure sind die Innovatoren eines Unternehmens. Entsprechend kommt dem Verständnis der Mechanismen hinter innovativem Arbeitsverhalten der Unternehmer eine große Bedeutung zu. Auf Ebene des Entrepreneurs können hier neben kognitiven Einflüssen vor allem Persönlichkeitseigenschaften identifiziert werden. In dieser Studie werden die Zusammenhänge innovativen Arbeitsverhaltens als personale Voraussetzung innovativer Unternehmensführung zur Dunklen Triade der Persönlichkeit (Narzissmus, Machiavellismus, Psychopathie) und psychischer Widerstandsfähigkeit (Resilienz) untersucht und damit ein Beitrag zum Verständnis dunkler wie heller Seiten des Unternehmerprofils geleistet. Auf Basis einer Stichprobe von 78 Unternehmern wurde Resilienz als signifikanter Prädiktor innovativen Arbeitsverhaltens identifiziert. Darüber hinaus konnte Resilienz als Mediator-Variable bestätigt werden, die den indirekten Einfluss von Narzissmus bzw. Psychopathie auf das innovative Arbeitsverhalten des Unternehmers erklärt. Für Machiavellismus wurde weder ein direkter noch indirekter Effekt auf innovatives Arbeitsverhalten gefunden. Höhere Werte in der Dunklen Triade (insb. Narzissmus und Psychopathie) helfen folglich dem Entrepreneur, auch in unsicheren Umwelten selbstbewusst nach neuartigen Lösungen zu suchen und so das Wachstum seines Unternehmens zu fördern. Abstract Entrepreneurs are the innovators of a company. Accordingly, understanding the mechanisms behind innovative work behavior of entrepreneurs is of great importance. At the level of the entrepreneur, personality traits can be identified as significant predictors in addition to cognitive influences. This study examines the connections between innovative work behavior as a personal prerequisite for innovative work behavior and the Dark Triad of personality (narcissism, Machiavellianism, psychopathy) and psychological resilience, thus contributing to the understanding of both the dark and bright sides of the entrepreneurial profile. Based on a sample of 78 entrepreneurs, resilience was identified as a significant predictor of innovative work behavior. Furthermore, resilience was confirmed as a mediator variable that explains the indirect influence of narcissism or psychopathy on the innovative work behavior of the entrepreneur. No direct or indirect effect on innovative work behavior was found for Machiavellianism. Higher values in the Dark Triad (especially narcissism and psychopathy) therefore help the entrepreneur to confidently search for new solutions even in uncertain environments and thus promote the growth of his company.
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Labouche, Thomas. « Has U.S. Leadership Been Revitalized Through Barack Obama’s Innovative Use of Force ? » Connections : The Quarterly Journal 11, no 2 (2012) : 37–52. http://dx.doi.org/10.11610/connections.11.2.03.
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Su, Yi, et Xue Wang. « The Influence of Entrepreneurs’ Political Connections on Enterprise Innovation Intention ». International Journal of Innovation and Technology Management 17, no 03 (mai 2020) : 2050020. http://dx.doi.org/10.1142/s0219877020500200.
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Based on the data of the Growth Enterprise Market (GEM)-listed companies in the Shenzhen Stock Exchange of China, this paper researched the influence mechanism of political connections on enterprise innovation intention. This paper is based on the theory of reciprocal exchange of social capital. The research found that the entrepreneur’s political connections are detrimental to the improvement of enterprise innovation intention, and the differentiation strategy has a mediation effect between them. Moreover, the market competition intensity of enterprise production adjusts the influence of the differentiation strategy on enterprise innovation intention, and it can alleviate the negative influence of the political connection on the innovation intention through the differentiation strategy. Although the country’s innovation-driven strategy will provide more innovative resources for enterprises, securing the survival and development of an enterprise is becoming increasingly narrower by relying solely on establishing connections with the government.
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Tong, Haoxiang, et Huili Xiao. « Political Connection Impairs Enterprise Innovation : An Empirical Study Based on Chinese Private Listed Enterprises ». International Journal of Economics and Finance 11, no 7 (20 mai 2019) : 1. http://dx.doi.org/10.5539/ijef.v11n7p1.
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Based on various data of the private listed companies in China, this paper stuides the impact of political connections on corporate innovation capabilities. Political connection can improve corporate value, bring financing convenience, tax benefits as well as government subsidy to affiliated enterprises. On the other hand, political connection helps affiliated enterprises enter the monopoly industries, which weakens their willingness to engage in innovative activities. The empirical studies reveal that political connection has a negative innovation effect, due to it raises the entry level of entering barrier industry in affiliated enterprises.
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Jong, Wan Hu, et Woong Park Ji. « Composite Joints Design - Migrating from Finite Element Models to Component Models ». Advanced Materials Research 716 (juillet 2013) : 620–25. http://dx.doi.org/10.4028/www.scientific.net/amr.716.620.
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When developing innovative structural systems, designers are faced with a difficult problem when addressing connection design. While the provisions for the design of members and their failure modes are well understood and codified, the design and performance of the connections are not. Current specifications require designers to provide evidence, through either experiments or analysis and combinations thereof, that these connections will perform as intended. In this paper, the design of an innovative type of connection to concrete-filled tube columns is described. These connection are partially-restrained, contain a new type of material (shape memory alloys), and are geared for high seismic loads making their design a very challenging proposition without the aid of physical testing. The design is developed based on detailed finite element analyses of the connection region and elements which lead to simplified spring models suitable for design of entire frames. The results indicate that through careful and rigorous analyses, robust simplified connection models can be developed even for complex connections.
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Hu, Jong Wan, et Ga Lam Choi. « Towards an Application of PBD Principles for Innovative Recentering Beam-to-Column Connections ». Advanced Materials Research 716 (juillet 2013) : 569–74. http://dx.doi.org/10.4028/www.scientific.net/amr.716.569.
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An unintended consequence is that some freedom in the introduction of innovative composite connections has been removed. The innovative aspects of this connection are in the use of partial restraint connections between steel beams and concrete-filled tube columns that utilize a combination of low-carbon steel and shape memory alloy components. A refined finite element model with sophisticated three dimensional solid elements was developed to conduct numerical experiments on the proposed joints to obtain the global behavior of the connection and develop simplified models. The paper argues that careful analytical studies can replace the requirement for physical testing present in current steel codes.
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Hassan, Md Kamrul, Swapan Saha et Payam Rahnamayiezekavat. « Behaviour and Design of Innovative Connections of Prefabricated CFST Columns under Tension ». Sustainability 15, no 3 (3 février 2023) : 2846. http://dx.doi.org/10.3390/su15032846.
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This paper investigates the tensile behaviour of prefabricated concrete-filled steel tube (PCFST) columns with bolted connections. Innovative bolted column-column (BCC) connections are developed using standard structural bolts to simplify the construction process for the connection of two PCFST columns, especially for the corner, edge, and interior columns. The behaviour of BCC connections in PCFST columns under tension has been investigated, adopting the finite element (FE) modelling approach. Parametric studies are carried out to understand the influence of bolt arrangements (TB = 4, 6, 7, 8), base plate thickness (tbp = 8, 10, 14, and 18 mm), bolt diameters (db = 16, 18, 20, 24 mm), vertical stiffeners (ths = 4, 6, 8, 10 mm), horizontal stiffeners (ths = 10, 12, 13, 15 mm), and yield strength of steel tube (fy,t = 380, 450, and 550 MPa) on the behaviour of PCFST columns with developed BCC connections. The results show that the PCFST columns with the developed BCC connections can attain sufficient tensile strength and satisfy the tensile strength requirements recommended in AS5100 and the robustness requirements in AS1170. The outcome of this paper will be useful to practising structural engineers to design prefabricated CFST columns with BCC connections under tension.
Thèses sur le sujet "Innovative connections"
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Werner, Åström Petter. « Experimental study on innovative connections for large span structural timber trusses ». Thesis, KTH, Byggnadsmaterial, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-256507.
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Large span timber trusses are usually built with glulam. One problem with large span glulam trusses is that the connections needed to transfer the load between truss members are often complex and expensive. Another issue is transportation. Building large span trusses out of structural timber instead, could be a way of simplifying the connections and at the same time increase the degree of on-site construction and thereby solving the transportation problem.In this study, a total of 18 laboratory tests were performed with the purpose of investigating the tensile strength and the load slip behavior of different connection designs for large span structural timber trusses. Six different test groups corresponding to six different connection designs were tested. The materials used include members made of C24 timber and gusset plates made of birch plywood, aluminum, and steel. Screws were used as fasteners for five test groups and adhesive was used for one group. The influence of different reinforcement techniques including reinforcement screws and added aluminum sheets was studied.The results showed a ductile failure behavior for all test groups except for the group where adhesive was used. However, a decrease of ductility was observed for groups were aluminum sheets were used on the outsides of the mid placed plywood gusset plate. A 12-17 % increase in capacity was observed due to the presence of aluminum sheets. The reinforcement screws had no significant effect on the capacity. However, the presence of reinforcement screws did lead to a reduction in scatter both regarding capacity and stiffness.
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Marchi, Luca. « Innovative connection systems for timber structures ». Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3424736.
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Connections and fasteners play an essential role in the determination of strength and stability, ductility and robustness, i.e., the overall behaviour of timber structures. In particular, connections subjected to static loads are to be investigated in terms of strength and stiffness, whereas the ones designed to withstand cyclic (e.g., seismic) loads need also the definition of their complete hysteretic response. This Ph.D. dissertation focuses on the behaviour of modern connections being developed and employed in timber engineering.
An initial overview on mechanical connections employed in timber structures and their evolution is reported in the introductive section of this thesis. Advantages as well as critical issues of traditional connections are the motivations for the evolution and the improvements brought by innovative connections. Two different applications of innovative timber connections are analysed and hereby discussed, each one facing different issues. The first one claims to give an insight into modern screws employed in Timber-concrete composite (TCC) structures, where the major objective is to achieve maximum strength and above all stiffness. The second is directly focused on the cyclic performance of modern connections employed in Cross Laminated Timber (CLT) structures where dissipative capacity and structural damping are of utmost importance. Consequently, the present manuscript is subdivided into two main parts.
The first part deals with TCC joints realized with modern screws. The key-point to guarantee adequate mechanical performance to these composite structures is the use of connectors that demonstrate sufficient shear strength and stiffness at the interface between timber beam and concrete slab independently of the presence of an intermediate layer. Modern cylindrical connectors, such as self-tapping screws, are rising interest because they combine remarkable performance, when their withdrawal capacity is exploited, and quickness of execution especially in case of onsite installation. In this paper, a theoretical approach to calculate shear strength and stiffness of TCC joints made with inclined screws is discussed and compared to current design procedures. Furthermore, a report on short-term push-out tests of TCC joints realized with inclined self-tapping screws carried out varying fastener arrangement, diameter and concrete type is given. Consequently, a comparison between the results obtained with the theoretical method and experimental tests is reported and critically discussed in terms of both strength and stiffness.
The last section of the first part present the design of an innovative connector that combines the use of self-tapping screws and a glass-fibre reinforced polymer (GFRP) element as components to realize structural TCC joints. FRP is being used in civil engineering since decades, but most of these applications utilize pre-impregnated thermosetting composites, the most common of which is carbon fibre-reinforced polymer (CFRP). On the contrary, injection moulded thermoplastic materials are relatively new and lack of history of their use in civil infrastructures. The aim is to develop a connection that solves typical installation issues of inclined screws and avoids stress concentration issues that may occur in the concrete layer. Numerical simulations, carried out to design this particular joint and exploiting a hybrid approach, are described in detail. Then, results from the experimental tests conducted to investigate the behaviour of the device subjected to shear loading conditions are compared with the analytical predictions valid for inclined screws previously described.
The second part of this work focuses on the developing of an innovative earthquake-resistant connections employed for CLT structures. The seismic performance of CLT buildings is mainly related to the capability of joints to perform plastic work, since timber elements have limited capability to deform inelastically. Nowadays, the use of hold-down and angle bracket connections, which were originally developed for platform-frame constructions, has been extended also to CLT buildings. Nevertheless, the dissipative capacity of light-frame buildings is mainly diffused in nailing between frames and panels while, in CLT walls, the dissipative contribution is exclusively assured by ductile joints connecting the panels. The need of more reliable connections that provides well predictable and stable hysteretic behaviour, reduced pinching phenomenon (caused by the wood embedment) and strength degradation, justifies the continuous development of “innovative” connections. In this work, a newly developed connection element that overcomes the aforementioned issues and works for both tensile or shear loads is designed and assessed, and various significant aspects are discussed.
Initially, the design procedure of the connection element and preliminary experimental tests that validates the numerical predictions are illustrated. Then, improved versions of the device are illustrated and their experimental results reported with particular attention in describing their hysteretic response and coupled shear-tension strength domain. In this work, an important role is also given to the application of the capacity design criteria applied at the joint level in order to guarantee the best exploitation of the connection’s dissipative capacity. Therefore, theoretical concepts, which describe the overstrength of traditional and innovative connections, confirmed by experimental tests of the brackets anchored to a CLT panel, are also given. In the last chapter is presented a numerical model that, following a macro-element approach, reproduces the actual cyclic response of the investigated device when subjected to combined shear-tension loads. Finally, the results of Non-Linear Dynamic Analyses of a case study CLT building realized which such model are reported and the seismic capacity of the case study building is evaluated.
With these two examples, this thesis aims to give an original contribution in the evaluation of performance of innovative connection systems for timber structures, combining the use of theoretical, numerical and experimental models, and highlighting the emerging differences with respect to the use of traditional fasteners and connections.Le connessioni e gli elementi di fissaggio svolgono un ruolo essenziale nella determinazione della resistenza, stabilità e solidità, ovvero nella risposta globale delle strutture del legno. In particolare, le connessioni soggette a carichi statici devono essere studiate in termini di resistenza e rigidezza, mentre quelle progettate per resistere a carichi ciclici (ad es. sismici), necessitano anche della completa definizione della loro risposta isteretica. Questa tesi si concentra sul comportamento dei collegamenti moderni sviluppati e impiegati nell'ingegneria del legno. Una prima panoramica sulle connessioni meccaniche impiegate nelle strutture del legno e la loro evoluzione è riportata nella sezione introduttiva di questa tesi. Vantaggi e criticità delle connessioni tradizionali sono le motivazioni dell’evoluzione e dei miglioramenti prodotti dalle connessioni innovative. Vengono analizzate e discusse due diverse applicazioni di connessioni per strutture in legno, ognuna delle quali espone aspetti e problematiche diverse. Il primo afferma di dare una panoramica delle moderne viti utilizzate nelle strutture composte legno-calcestruzzo (TCC), dove l'obiettivo principale è ottenere massima resistenza e ancor più rigidezza. Il secondo, è incentrato direttamente nell’analisi delle prestazioni cicliche delle connessioni moderne utilizzate nelle strutture in CrossLam (CLT) in cui la capacità dissipativa e lo smorzamento strutturale sono della massima importanza. Di conseguenza, il presente manoscritto è suddiviso in due parti principali. La prima parte riguarda le giunzioni legno-calcestruzzo realizzate con viti moderne. Il punto chiave per garantire prestazioni meccaniche adeguate a queste strutture composite è l'utilizzo di connettori caratterizzati da un'adeguata resistenza e rigidezza tra trave di legno e soletta di calcestruzzo, indipendentemente dalla presenza di uno strato intermedio. I connettori cilindrici moderni, come le viti autofilettanti, possiedono un crescente interesse perché combinano elevate prestazioni, se è sfruttata la loro elevata capacità ad estrazione, e rapidità di esecuzione. In questo lavoro viene proposto un approccio teorico semplificato per calcolare la resistenza al taglio e la rigidezza dei giunti TCC realizzati con viti inclinate e poi confrontato con le attuali procedure di progettazione. Inoltre, viene fornito un rapporto sulle prove di push-out a breve termine di giunti TCC realizzati con viti autofilettanti inclinate, effettuate con vari tipi di fissaggio, diametro e tipo di calcestruzzo. Di conseguenza, viene anche riportato un confronto tra i risultati ottenuti con il metodo teorico e le prove sperimentali e viene discusso criticamente in termini di forza e rigidezza. L'ultima sezione della prima parte comprende la progettazione di un connettore innovativo che combina l'utilizzo di viti autofilettanti e polimero termoplastico rinforzato con fibra di vetro (GFRP) per realizzare giunti TCC strutturali. Gli FRP vengono utilizzati nell’ingegneria civile da decenni, ma la maggior parte di queste applicazioni utilizza compositi termoindurenti pre-impregnati, il più comune dei quali è il polimero rinforzato in fibra di carbonio (CFRP). Al contrario, i materiali termoplastici sono relativamente nuovi e mancano di storia nell'utilizzo nell'infrastruttura civile. Le simulazioni numeriche, effettuate per progettare questo giunto, sono descritte in dettaglio. Quindi, i risultati delle prove sperimentali condotte per esaminare il comportamento del dispositivo sottoposto a condizioni di carico di taglio sono confrontati con le previsioni analitiche descritte. La seconda parte di questo lavoro si concentra sullo sviluppo di collegamenti innovativi impiegati per le strutture in CLT. La prestazione sismica degli edifici CLT è principalmente legata alla capacità dei collegamenti di plasticizzarsi, poiché gli elementi del legno hanno una capacità limitata di deformazione inelastica. Oggi, l'utilizzo di connessioni quali hold-down e angolari, originariamente sviluppati per costruzioni tipo platform-frame, è stato esteso anche agli edifici CLT. Tuttavia, la capacità di dissipazione degli edifici a telaio è diffusa soprattutto nella connessione telaio-pannello, mentre nelle strutture in CLT il contributo dissipativo è assicurato esclusivamente da connessioni duttili che collegano i pannelli. La necessità di una connessione più affidabile che fornisca un comportamento isteretico prevedibile ed affidabile, un fenomeno ridotto di “pinching” (causato dal rifollamento del legno) e una degrado di resistenza giustifica lo sviluppo continuo di connessioni "innovative". In questo lavoro è stato progettato e valutato un elemento di connessione che sormonti i problemi sopradescritti e che lavora sia per i carichi di trazione che per taglio, e ne vengono discussi gli aspetti più significativi. Inizialmente viene illustrata la procedura di progettazione dell'elemento di connessione e dei test sperimentali preliminari che convalidano le previsioni numeriche. Successivamente vengono descritte le fasi di progettazione e test di ulteriori versioni migliorate delle staffe dissipative e sono riportati i loro risultati sperimentali facendo particolare attenzione nel descrivere la loro risposta isteretica e il dominio di resistenza tensione-taglio. Un ruolo importante in questo lavoro è dato all'applicazione dei criteri di gerarchia delle resistenze (progettazione in capacità) a livello di connessione al fine di garantire il miglior sfruttamento della capacità dissipativa della connessione. Di conseguenza, vengono forniti concetti teorici che descrivono l’applicazione di tali concetti a connessioni tradizionali e innovative, e confermate da prove sperimentali delle staffe oggetto di studio ancorate a un pannello CLT. Infine, i risultati di simulazioni numeriche dettagliate e prove cicliche quasi-statiche sono state utilizzate per sviluppare un modello di macro-elemento implementato in un codice numerico che ha permesso di determinare le prestazioni sismiche di un edificio caso studio in CLT realizzato con tali connessioni. Con questi due esempi la presente tesi mira a definire un originale procedura di valutazione delle performance delle connessioni innovative per legno, combinando l'uso di modelli teorici, numerici ed analisi sperimentali e mettendone in evidenza le differenze emergenti rispetto all'impiego di sistemi di connessioni tradizionali.
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Zhou, Feng. « Seismic behavior and design of composite moment frames with conventional and innovative connections ». 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144550.
Texte intégralRésumé :
Kyoto University (京都大学)0048
新制・課程博士
博士(工学)
甲第11879号
工博第2572号
新制||工||1360(附属図書館)
23659
UT51-2005-N713
京都大学大学院工学研究科建築学専攻
(主査)教授 中島 正愛, 教授 井上 一朗, 助教授 吹田 啓一郎
学位規則第4条第1項該当
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Francavilla, Antonella Bianca. « Robustness and seismic behaviour of structures equipped with traditional and innovative beam-to-column connections ». Doctoral thesis, Universita degli studi di Salerno, 2017. http://hdl.handle.net/10556/2693.
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2015 - 2016Moment Resisting Frames are structures that withstand seismic actions by the bending of girders, columns and connections. Their main source of stiffness and lateral strength is given by the flexural resistance of members and connections, and the seismic energy dissipation capacity and ductility, is provided by the formation of a high number of dissipative zones which can be located in beams, columns or joints depending on the applied design philosophy. Classically, framed structures are designed to possess strong columns, weak beams and full strength rigid connections, so that the earthquake input energy is dissipated through the plastic engagement of the end of beams and of the end of columns of the first storey. The aim of the PhD thesis is to investigate the possibility of using innovative beam-to-column joints characterised by an appropriate stiffness under service loads but which are able to provide a high energy dissipation under seismic event and to confer a suitable robustness in case of a column loss due to exceptional events. According to the traditional strategy for the seismic design of building structures, in case of frequent and occasional seismic events whose return period is comparable with the life cycIe of structures, the earthquake input energy has to be completely dissipated by means of viscous damping. Therefore, the hysteretic energy is equal to zero because, for such seismic events, the structure has to be designed to remain in elastic range. Conversely, in case of rare and very rare seismic events whose return period is about 500 years and even more, most of the earthquake input energy is dissipated by hysteresis, but leading to severe plastic excursions and related structural damage. Such structural damage has to be compatible with the ductility and the energy dissipation capacity of structures, because, even though structural damage is accepted, collapse prevention has to be assured and the safeguard of human lives has to be guaranteed. To this scope a reliable prediction of nonlinear structural behaviour during severe seismic events is required, which represents an extremely difficult task. Although many nonlinear analysis programs exist, the accuracy of their resuIts depends on the assumptions made in the characterization of member stiffness. Therefore, experimental research remains the most reliable means of assessing seismic performance and is crucial to the development of new analytical models and design methods. Quasi-static testing can provide information on the nonlinear behaviour of members or subassemblies, but it is often difficult to relate the imposed force or displacement histories to those that might occur during an earthquake. These static methods are therefore, primarily used to calibrate analytical models or to compare the relative performance of a variety of similar structural details. Starting from the above considerations, in this work, the possibility of using steel frames with innovative bolted connections has been analysed with the aim of providing the structure of supplemental damping devices by means of properly detailed beam-to-column joints. In particular, in order to overcome the drawbacks of the traditional and passive control design strategies, the aim of the work is the development of a new design strategy whose goal is the design of connections able to withstand frequent and occasionaI seismic events but also destructive earthquakes such as those corresponding to rare and very rare events without any damage. In addition, with reference to structural robustness, has been underlined that, because of the specific behaviour of beam-tocolumn connections equipped with friction pads, significant benefits are in the catenary action resuIting, as example, in case of a column loss due to blast loading or impact loading. The development of this design strategy is also the subject of the FREEDAM project, which is an RFCS project, granted by the European Community. [edited by author]
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Ahmed, Sheikh Saad. « Development of Innovative Load Transfer Mechanism to Reduce Hurricane-Induced Failures in New and Existing Residential Construction ». FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/157.
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Implicit in current design practice of minimum uplift capacity, is the assumption that the connection's capacity is proportional to the number of fasteners per connection joint. This assumption may overestimate the capacity of joints by a factor of two or more and maybe the cause of connection failures in extreme wind events. The current research serves to modify the current practice by proposing a realistic relationship between the number of fasteners and the capacity of the joint. The research is also aimed at further development of non-intrusive continuous load path (CLP) connection system using Glass Fiber Reinforced Polymer (GFRP) and epoxy. Suitable designs were developed for stud to top plate and gable end connections and tests were performed to evaluate the ultimate load, creep and fatigue behavior. The objective was to determine the performance of the connections under simulated sustained hurricane conditions. The performance of the new connections was satisfactory.
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Ferrante, Cavallaro Giovanni. « Pseudo dynamic tests and numerical analysis of free from damage multistorey steel buildings with innovative connections ». Doctoral thesis, Universita degli studi di Salerno, 2019. http://elea.unisa.it:8080/xmlui/handle/10556/4277.
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2017 - 2018One of the most widespread structural systems is represented by Moment Resisting Frames (MRFs). resistant seismic frames. This structural system is made up of frames capable of resisting seismic actions through predominantly flexural tension states. The stiffness and lateral resistance of the system depend on the flexural strength of the members and the type of connection, while the development of the plastic hinges guarantee the dissipation of the seismic input energy. The location of the dissipative zones varies according to the design approach adopted, typically they develop in beams, columns and connections. The most widespread design philosophy is to have strong columns, weak beams and full-strength rigid connections with complete resistance restoration, in this way all the seismic energy tends to be dissipated by the plastic hinges at the ends of the beams and at the base of the columns of the first level. In order to overcome the traditional design approach, the present research work introduces a new type of beam-column connection capable of exhibiting a remarkable rigidity in service conditions (SLE) and able to exhibit a remarkable dissipative capacity when a rare seismic event occurs. The codes currently in force provide that for seismic events characterized by a period of return comparable with the useful life of the structure (frequent or occasional events) the structures remain in the elastic field ensuring that the seismic energy is completely dissipated through viscous damping. Vice versa, the seismic energy must be dissipated through plastic engagement of parts of the structure, with wide and stable hysteresis cycles, for rare and very rare seismic events with a return period of about 500 years. The development of the hysteresis involves structural damage that have to be such as not to lead to the collapse of the structure in order to guarantee the protection of the life of those who occupy the building. The prediction of the behaviour of the structure in non-linear field for rare seismic events represents an aspect that only experimental research can describe in depth by developing new analytical models and innovative design philosophies. The execution of quasi-static tests can provide useful information in order to investigate the nonlinear behaviour of the members and the assemblages even if the forces or the displacement histories applied during the tests do not correspond exactly to the actions that occur during a real seismic event. The information obtained through these test procedures is however useful for calibrating analytical models and comparing the behaviour of structural components. The execution of tests on real scale structures is the best way to investigate the global behaviour of a structural system. For a more complete knowledge about the response in the dynamic field, the pseudo-dynamic tests represent a test protocol able to provide information of the structural response of a component or of a structure in a dynamic field through a static test. The main purpose of this work, developed within the FREEDAM research project financed by the European Community, is to develop an innovative beam-column connection. These innovative connections are equipped with an additional damper able to dissipating the energy deriving from destructive seismic events. The FREEDAM beam-column connection, through an appropriate design of the various components, is able to withstand frequent earthquakes and rare events without causing damage to the structural elements. The thesis is divided into six chapters. The Chapter 1 reports a brief introduction to the traditional beam-column connections, specifying the characteristics of the different types of connection and their influence on the behaviour of the Moment Resisting Frames. In the last part of the chapter the FREEDAM dissipative connection is presented, specifying its peculiarities and the benefits that its introduction into the structural system brings. The Chapter 2 is devoted to the description of the results obtained from an extensive experimental campaign developed at the STRENGTH laboratory of the University of Salerno, for the choice of material for the friction dampers used in the FREEDAM connections by carrying out a statistical characterization of the static and dynamic friction coefficients. The Chapter 3 collects the results of a further experimental campaign carried out at the University of Salerno laboratory and aimed at studying the tightening losses for pre-loading bolt systems equipped with different washers. In Chapter 4 a design procedure has been define for the FREEDAM beam-column connections, then this procedure has been applied in order to design two different types of connections that have been experimentally tested at the University of Coimbra Laboratory (PT). In the same chapter, the test layouts and the results obtained from the cyclic tests carried out on the nodes equipped with FREEDAM friction dampers have been described, finally developing models to the finite elements and comparing the experimental results with the computerized models. Finally, the Chapter 5 shows the results of the pseudo-dynamic tests carried out on a full-scale steel Moment Resistant Frame equipped in a first case with traditional full strength beam-column connections (dogbone) and in a second case equipped with the innovative connections proposed. These results have been compared to each other and with the results obtained from finite element models. [edited by Author]
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Bezzi, Stefano. « Ductility of cross-laminated timber buildings, influence of low-cycle fatigue strength and development of an innovative connection ». Doctoral thesis, Università ; degli studi di Trento, 2020. http://hdl.handle.net/11572/258010.
Texte intégralRésumé :
This thesis is mainly focused on the seismic behaviour of cross laminated timber (CLT) buildings. The document can be subdivided into three main sections closely related to each other.
In the first part, after a short introduction on the state of the art on timber buildings regarding the constructive and legislative issues, the behaviour of CLT buildings is presented. The research is focused on the study on single shear-walls, on the multi-storey single-walls and on the behaviour of the whole buildings. The analyses are performed in order to assess the ductility level achievable by a CLT building as a result of different choices for the ductility of the connections at the foundation level. In order to estimate the ductility level, a large number of non-linear analyses were performed. This was possible thanks to a Matlab code, specifically developed, which allowed to reduce the computational burden. The results are used to evaluate a reliable set of behaviour factors to be applied in the seismic design of CLT buildings.
In the second part of thesis, the low-cyclic fatigue strengths for different typologies of dissipative timber connections are presented. The low-cyclic fatigue strength represents a key-parameter in the assessment of the seismic behaviour of timber connections. In fact, high values of ductility associated with low values of strength degradation ensure a remarkable and reliable energy dissipation without a significant loss of strength. Despite the current version of chapter 8 of Eurocode 8 requires specific values of seismic demand for timber connections in terms of low-cyclic fatigue strength, no specific provision is reported to this regard in the European Standard for the cycling testing of timber connections and assemblage in seismic design (EN 12512). In This Standard the ductility capacity and the impairment of strength are calculated as separate mechanical parameters. For this reason, a proposal of revision of European Standard EN12512 is presented and discussed.
The third and last part of the thesis describes an innovative connection for CLT buildings. This innovative connection was originally developed in order to absorb both traction and shear actions. Furthermore, a good performance has been obtained in terms of low-cyclic fatigue strength and ductility, with the aim of conceiving a connection able of satisfy the requirements of the current seismic European Standard. The design of this new connection was an iterative process, starting from some simplified numerical models. After some improvements, it was possible to obtain the expected performance levels. The strength and rigidity of the designed connection were initially obtained through numerical analysis, and then compared with the results of physical tests carried out in the Materials and Structures Testing Laboratory (MSTL), that is a part of the Department of Civil, Environmental and Mechanical Engineering (DICAM) of the University of Trento.
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Weaver, Joanna Corinne. « An Exploratory Study of Teacher Education Students’ Experiences with an Innovative Literacy Assessment and Remediation Course ». University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1414948474.
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Гречка, Альона Вячеславівна. « Задачі міжпредметного змісту як засіб формування в учнів інтегрованих знань з природничих наук ». Магістерська робота, ЗНУ, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/3438.
Texte intégralRésumé :
Гречка А. В. Задачі міжпредметного змісту як засіб формування в учнів інтегрованих знань з природничих наук : кваліфікаційна робота магістра спеціальності 014 "Середня освіта" / наук. керівник Н. І. Тихонська. Запоріжжя : ЗНУ, 2020. 87 с.EN : Master's Qualification Thesis «Tasks of Cross-curricular Learning Area as Means o f Forming Students' Integrated Knowledge in Natural Science» contains: 87 pages, 11 pictures, 3 tables, 39 resources. The object of the research is the process of natural subjects in the institutions of secondary еducation. The aim of the work: is in developing, in theoretical background and experimental verification of methods for solving problems of intersubject content in the process of teaching natural sciences in a comprehensive school. The methods of researching: the analysis of scientific and methodological literature, collating and summarizing data obtained through studying of State standard for basic and complete general secondary education, the survey methods: conversations, questionnaires, the pedagogical quantitative analysis of the results of the pedagogical experiment. Scientific originality of the work is in the development of a methodology for unbinding and solving problems of intersubject content which based on the implementation of the principle of integration of knowledge in the study of natural sciences in a secondary school. The practical significance of the work is in the development and implementation of the methodology for solving and compiling tasks of interstudying content based on the implementation of the principle of integration of knowledge during the study of natural sciences in secondary school.
UA : Кваліфікаційна робота магістра «Задачі міжпредметного змісту як засіб формування в учнів інтегрованих знань з природничих наук»: 87 с., 11 рис., 3 табл., 39 джерел. Об’єктом дослідження є процес навчання природничих наук в закладах середньої освіти. Мета роботи: полягає в розробці, теоретичному обґрунтуванні й експериментальній перевірці методики розв’язування задач міжпредметного змісту в процесі навчання природничих наук в загальноосвітній школі. Методи дослідження – аналіз науково-методичної літератури, співставлення й узагальнення даних, одержаних у процесі вивчення Державного стандарту базової і повної загальної середньої освіти, методи опитування: бесіди, анкетування, педагогічний експеримент; якісний і кількісний аналіз результатів педагогічного експерименту. Наукова новизна роботи полягає у розробці методики розв’язування і складання задач міжпредметного змісту на основі peaлізації принципу інтеграції знань при вивченні природничих наук в середній школі. Практичне значення роботи полягає у розробці та впровадженні методики розв’язування і складання задач міжпредметного змісту на основі peaлізації принципу інтеграції знань при вивченні природничих наук в середній школі.
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Gao, Yu. « Innovative Self-Centering Connection for CCFT Composite Columns ». Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/78390.
Texte intégralRésumé :
Concrete filled steel tubes are regarded as ideal frame members in seismic resisting systems, as they combine large axial and flexural capacity with ductility. The combination of the two materials increases the strength of the confined concrete and avoids premature local buckling of the steel tube. These benefits are more prominent for circular than for rectangular concrete filled steel tubes. However, most common connection configurations for circular concrete filled tubes are not economic in the US market due to (a) the desire of designers to use only fully restrained connections and its associated (b) high cost of fabrication and field welding. Research indicates that well designed partially restrained connections can supply equal or even better cyclic behavior. Partially restrained connections also possess potential capability to develop self-centering system, which has many merits in seismic design.
The goal of this research is to develop a new connection configuration between circular concrete filled steel columns and conventional W steel beams. The new connection configuration is intended to provide another option for rapid assembling on site with low erection costs. The proposed connection is based on an extended stiffened end plate that utilizes through rods. The rods are a combination of conventional steel and shape memory alloy that provide both energy dissipation and self-centering capacity. The new connection configuration should be workable for large beam sizes and can be easily expanded to a biaxial bending moment connection.Ph. D.
Livres sur le sujet "Innovative connections"
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Melo Figueiredo, Elisabete Maria, et Antonio Raschi, dir. Fertile Links ? Connections between tourism activities, socioeconomic contexts and local development in European rural areas. Florence : Firenze University Press, 2013. http://dx.doi.org/10.36253/978-88-6655-389-2.
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In many European regions, rural areas are facing major challenges in economic and social terms, consequence of transformations in the role and meaning of agriculture. The loss of the productive character strongly contributed to the emergence of new roles and functions, particularly related to leisure and tourism. The book aims to discuss questions directly related to the connections between rural tourism and local socioeconomic contexts, presenting diverse theoretical and methodological perspectives and diff erent case studies from various European regions. The book addresses the relationships among rural tourism and the complex interactions, confl icts and innovative processes developing in rural territories as consequence of the implementation of tourism activities. The book responds to some relevant and not yet comprehensively researched aspects within this topic, especially in what extent tourism, in its various forms and processes, might give an important contribution to rural development.
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Paulsen, Ruth Wright. Strategic connections : Technology, innovation and labour relations. Ottawa, Ont : Conference Board of Canada, 1991.
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Mangan, Peter J. Innovation in hospitals : The culture connection. Dublin : University College Dublin, 1992.
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Commission, European, dir. Osiris : Optimised system for an innovative rail integrated seaport connection. Luxembourg : Office for Official Publications of the European Communities, 1998.
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Nickell, Stephen. Human capital, investment and innovation : What are the connections ? Oxford : Institute of Economics and Statistics, University of Oxford, 1996.
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Kennedy, Cheryl. Connecting stitches : Tradition and innovation in Illinois quilts. Springfield, Ill.] : Illinois State Museum, 1993.
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Alberta. Alberta Advanced Education and Technology, Alberta. Alberta Agriculture and Rural Development et Alberta. Alberta Health and Wellness, dir. Making the food-health connection : An Alberta framework for innovation. Edmonton, AB : Alberta Advanced Education and Technology, 2008.
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Peter, Teirlinck, et Frantzen D. J. 1951-, dir. Managing Open Innovation : Connecting the Firm to External Knowledge. Cheltenham, UK : Edward Elgar, 2012.
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Guus, Berkhout, dir. The cyclic nature of innovation : Connecting hard sciences with soft values. Amsterdam : Elsevier Jai, 2007.
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Emmons, Karen. Innovation : How rural Thais are connecting to a world of opportunity. Bangkok : World Bank Thailand Office, 2001.
Trouver le texte intégralChapitres de livres sur le sujet "Innovative connections"
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Juhola, Tomi, Sami Hyrynsalmi, Tuomas Mäkilä et Ville Leppänen. « The Theoretical Connections Between Agile Software Development and Innovative Climate ». Dans Communications in Computer and Information Science, 281–92. Cham : Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24770-0_25.
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Tucki, P., et E. Hotała. « Innovative bolted end-plate connections for high web I-beams ». Dans Modern Trends in Research on Steel, Aluminium and Composite Structures, 370–77. London : Routledge, 2021. http://dx.doi.org/10.1201/9781003132134-47.
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Koronaki, Eirini, Prokopis K. Theodoridis et George G. Panigyrakis. « Linking Luxury Brand Experience and Brand Attachment Through Self-Brand Connections : A Role-Theory Perspective ». Dans Strategic Innovative Marketing and Tourism, 783–88. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36126-6_86.
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Chiesa, Giacomo, Francesca Fasano et Paolo Grasso. « Thermal Comfort and Climatic Potential of Ventilative Cooling in Italian Climates ». Dans Innovative Renewable Energy, 423–49. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04714-5_18.
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AbstractThe chapter describes several climate-correlated variables and suitable key performance indicators (KPIs) to define the local ventilative cooling potential. Furthermore, a methodology is presented to verify potential correlations between climate KPIs and indoor comfort parameters. The latter values are calculated by adopting dynamic energy simulations (EnergyPlus) and comfort models – both Fanger (ISO 7730) and the recently updated EU adaptive comfort approach (EN 16798-1) – considering a sample building unit. Simulations are run by using a parametric-enabling tool developed by the research unit to check correlations and is part of work performed for the PRELUDE project, co-funded by the EU, Horizon 2020 research and innovation programme under grant agreement No 958345. The approach is applied to the whole Italian territory considering typical yearly (hourly defined) meteorological conditions for all municipalities (about 8000 data points). Strong connections between climate and building KPIs are underlined together with the high potential of ventilative cooling in reducing discomfort and energy needs in the Italian territory.
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Valente, David, et Daniel Xerri. « Introduction : Confluence, Connections and a Call to Action in Early English Education ». Dans Innovative Practices in Early English Language Education, 1–11. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-12922-3_1.
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Passy, Rowena, et Ian Blackwell. « Natural Connections : Learning About Outdoor-Based Learning ». Dans High-Quality Outdoor Learning, 321–34. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04108-2_18.
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AbstractThis chapter reports on the findings of the Natural Connections Demonstration project (2012–2016), the largest outdoor-based learning project in the UK. Pupil feedback showed that children felt ‘happy and healthy’ when they were learning outside and, drawing largely on our case-study research, we explore the imaginative and often innovative curriculum-based approaches and lessons initiated in project schools. We discuss how these approaches highlight both the opportunities and limitations of outdoor-based learning, arguing that teacher continuing professional development is the key to high-quality teaching and learning. We conclude with recommendations to school leaders and teaching staff.
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von Braun, Joachim. « ICT for the Poor at Large Scale : Innovative Connections to Markets and Services ». Dans ICT for the Next Five Billion People, 3–14. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12225-5_2.
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Sadeghi, N., A. Heidarpour, X. Zhao et R. Al-Mahaidi. « Numerical investigation of innovative modular beam-to-fabricated column connections under monotonic loading ». Dans Insights and Innovations in Structural Engineering, Mechanics and Computation, 1247–52. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742 : CRC Press, 2016. http://dx.doi.org/10.1201/9781315641645-204.
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Elert, Niklas, et Magnus Henrekson. « Collaborative Innovation Blocs and Mission-Oriented Innovation Policy : An Ecosystem Perspective ». Dans International Studies in Entrepreneurship, 345–67. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94273-1_18.
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AbstractAmong contemporary economists, Mariana Mazzucato stands out for her emphasis on the importance of innovation to solving pressing challenges and achieve a greater quality of life. However, the type of mission-oriented innovation policies she promotes usually rely on an overly mechanical view of innovation and economic growth. We employ an ecosystem perspective to demonstrate that innovative entrepreneurship takes place in a collaborative innovation bloc consisting of a myriad of nodes. Entrepreneurs, inventors, early- and later-stage financiers, key personnel, and customers are all actors whose skills and abilities are necessary to realize an entrepreneurial project. When mission-oriented policies play a large role in an industry’s production or financing, connections between actors in the innovation bloc risk being severed, severely curtailing the scope for actors to play their requisite roles. Thus, there is a risk that such policies do more harm than good for innovation and economic growth.
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Steensland, Ann, et Margaret Zeigler. « Productivity in Agriculture for a Sustainable Future ». Dans The Innovation Revolution in Agriculture, 33–69. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50991-0_2.
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Abstract The Malthusian predictions of the future have not come to pass due largely to innovative agricultural technologies and practices that stimulated significant gains in agricultural productivity. This chapter examines the linkages between innovation, productivity, and sustainability. The definition of agricultural productivity, measured as total factor productivity (TFP), will be explained, as well as the contribution of innovation to global TFP growth and the contribution of TFP to sustainable food and agriculture systems. To illustrate these connections, this chapter highlights innovative technologies and practices used by crop and livestock producers in the United States, Colombia, India, Kenya, and Vietnam. These cases demonstrate how advanced seed technologies, improvements in soil health and nutrient management, mechanization, and an emphasis on animal health drive productivity growth around the world. Many of these cases feature partnerships between the public sector, private sector, and producers where innovations and new practices are used to increase productivity, incomes, food security, and nutrition. Creating an enabling policy environment is essential for agricultural innovation, productivity, and sustainability; the chapter gives examples of public policies that stimulate such productivity: investing in public sector research and development (R&D), embracing science-based technologies, and establishing smart regulatory environments. The chapter includes a discussion of innovation, productivity, and the Sustainable Development Goals (SDGs).
Actes de conférences sur le sujet "Innovative connections"
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Salloum, A., et G. T. Heydt. « Innovative HVDC connections in power transmission systems ». Dans 2012 IEEE/PES Transmission and Distribution Conference and Exposition (T&D). IEEE, 2012. http://dx.doi.org/10.1109/tdc.2012.6281423.
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Alghamdi, Anwar S. « Encapsulated ESP System : An Innovative Solution for Extended Run Life in High H2S Environments ». Dans International Petroleum Technology Conference. IPTC, 2023. http://dx.doi.org/10.2523/iptc-22802-ea.
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Abstract The electric submersible pump (ESP) is one of the most reliable artificial lift methods for delivering high flow rates in oil wells. If well designed for reservoir properties, ESPs may run for several years before failing. Despite many ESP design advancements, electrical connections remain within the most prominent points of failure in high H2S environments. This paper presents an innovative approach to mitigate electrical connection failures by encapsulating the ESP system for extended ESP run life in high H2S environments. Following an ESP design review to explore current practices in mitigating ESP electrical-connection failures in sour wells, an innovative ESP system was designed to eliminate electrical-connections’ contact with well fluid. The ESP is connected from the top to a production tubing, encapsulated within a pressure-retaining pod, and located above a deeply set production packer. The motor head is designed to partially set outside the pod to accommodate electrical-cable connection, while partially encapsulated within the pod to deliver the necessary electrical supply to the ESP motor. The tubing-casing annulus (TCA) is then filled with inhibited-brine to protect the electrical connections. Experts in the field typically select special ESP metallurgy and electrical connections (i.e., metal to metal) in high H2S wells to extend the run life of ESP systems. Although the development of multiple versions of electrical connections can mitigate H2S attacks, field experience has shown progress in sour environments where ESP run life is not yet matching mild environments. Most efforts were made to minimize H2S attacks on ESP electrical-connections by developing robust ESP systems, but little to no effort was made to eliminate the risk. This challenge can be undertaken by encapsulating the ESP system to avert electrical connection contact with well fluid. Thus, it provided a radical solution to one of the most common ESP failure points in sour environments. The encapsulated ESP system is a new concept, for which a patent is pending, designed to address electrical connection failures for an extended run life in high H2S environments. This paper will discuss the background and design of the system and its potential to eliminate electrical connection integrity issues.
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Kirrane, Maria, John O'Halloran, Mark Poland, Sandra Irwin et Pat Mehigan. « Innovative approaches for research led education : UCC’s Green Campus Living Laboratory Programme ». Dans Learning Connections 2019 : Spaces, People, Practice. University College Cork||National Forum for the Enhancement of Teaching and Learning in Higher Education, 2019. http://dx.doi.org/10.33178/lc2019.33.
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Ireland’s National Strategy on Education for Sustainable Development (2014-2020), highlights the need to equip students with “the relevant knowledge (the ‘what’), the key dispositions and skills (the ‘how’) and the values (the ‘why’)” to contribute to a more sustainable future (Department of Education and Skills, 2014). Delivering on this challenge requires embedding sustainability within both the formal and informal learning that occurs on campus (Hopkinson et al. 2008), while also integrating sustainability both within and across disciplines (Byrne et al., 2018). UCC is a global leader in sustainability in higher education, being the first University in the world to be awarded a Green Flag from the Foundation for Environmental Education (Reidy et al, 2015). Sustainability at UCC is “student-led, research-informed, and practice-focused” that is, the programme takes an integrated approach and aims to utilise the collective student agency and research capability to deliver real and lasting change on the ground (Pelenc et al. 2015). UCC’s Academic Strategy, with sustainability and interdisciplinarity as key components of the new “Connected Curriculum”, aims to “facilitate students to develop values, skills and aptitudes that promote civic participation, social inclusion, sustainability, digital fluency and impactful, global citizenship” (UCC, 2018). A key aim of delivering its Sustainability Strategy is that UCC would become a “Living Laboratory”, where students, academics and practitioners work together, using the campus itself as a testbed for solutions to today’s major societal challenges (UCC, 2016). A Living Laboratory project should aim to: • Solve a real-life problem • Be based on a partnership among key stakeholders, often crossing disciplinary and/or sectoral boundaries • Trial and test ideas in real life settings • Share data and findings generated openly (EAUC, 2017).
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Leon, Roberto T., Reginald DesRoches, Justin Ocel et Greg Hess. « Innovative beam column connections using shape memory alloys ». Dans SPIE's 8th Annual International Symposium on Smart Structures and Materials, sous la direction de S. C. Liu. SPIE, 2001. http://dx.doi.org/10.1117/12.434122.
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Kuhlmann, Ulrike, Jennifer Spiegler et Andreas Kleiner. « Innovative High Strength Steel Construction by Mixed Connections ». Dans IABSE Congress, Stockholm 2016 : Challenges in Design and Construction of an Innovative and Sustainable Built Environment. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 2016. http://dx.doi.org/10.2749/stockholm.2016.0465.
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Spiegler, Jennifer, et Ulrike Kuhlmann. « Welded Connections in Innovative High Strength Steel Constructions ». Dans IABSE Symposium, Nantes 2018 : Tomorrow’s Megastructures. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/nantes.2018.s29-7.
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Kisis, Arturs. « INNOVATIVE JOINT SYSTEM FOR SMALL FRAME STRUCTURAL CONNECTIONS ». Dans 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/4.1/s17.033.
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Mcshane, Gerry. « Innovative Connections in High Capacity Retaining Wall Systems ». Dans International Symposium on Advances in Foundation Engineering. Singapore : Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-4623-0_038.
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Ezzuldeen, Mustafa M. « Innovative Gas Turbine Engine Cycle Aerothermodynamical Analysis ». Dans ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3522.
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The gas turbine engine design is fundamentally, taking the air flow into the compressing stage then combustion stage to add energy, and finally extracting energy in the turbine module. This journey of the flow in the engine is in serial connections. Posing the problem of the limiting turbine inlet temperature, the number that all the turbomachinery engineers desperately want to increase by tuning the inlet stages materials, or fine changes onto the blades’ profile or the flow paths. But the significant increase to this temperature lies under more fundamental and radical redesigns to the theory of the gas turbine operation, and its thermodynamical cycle. These principles were considered for long untouchable facts, and stayed lurking from the engineers examining eyes. This paper introduces one of these possibilities by genuine redesign concepts. Backed with CFD analysis, and Thermodynamical feasibility studies to address the potential problems of these modifications. The redesigns include implementing the new concept of the contra-rotating turbine more effectively to reduce the turbine module size, connecting pressurized fluid streams of two counter-rotating compressors in parallel instead of the serial connection, forming a protecting Pressurized shield for the entry turbine stages and, Extracting the energy in the process flow using flows interactions instead of flow-blades interactions.
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Lesh, Matthew Curtis. « Innovative Concepts in First-Last Mile Connections to Public Transportation ». Dans Third International Conference on Urban Public Transportation Systems. Reston, VA : American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784413210.007.
Texte intégralRapports d'organisations sur le sujet "Innovative connections"
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Christine, Lozano, et Riveros Guillermo. Classical and innovative methods of fatigue and fracture repairs in navigation steel structures. Engineer Research and Development Center (U.S.), avril 2021. http://dx.doi.org/10.21079/11681/40422.
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Most of the hydraulic steel structures (HSS) in the U.S. have reached or have past their design life, which leads to unsatisfactory performance. Welded connections with low fatigue resistance, poor weld quality, unanticipated structural behavior, or unexpected loading due to the deterioration of the design boundary conditions are the causes of fatigue cracking. The purpose of this report is to identify and evaluate the traditional and new methods used for fatigue and fracture repairs in navigation steel structures to restore their load carrying capacity and fatigue and fracture resistance. The final objective was to generate a guidance report comprising of recommended and more efficient repair methods for the different fatigue limit states observed in navigation steel structures.
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Akcigit, Ufuk, Salomé Baslandze et Francesca Lotti. Connecting to Power : Political Connections, Innovation, and Firm Dynamics. Cambridge, MA : National Bureau of Economic Research, octobre 2018. http://dx.doi.org/10.3386/w25136.
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Case, James, Brian Dold, Jakob Meng, Kurt Myers, Alexander Schoonen et Alison Conner. National Reactor Innovation Center (NRIC) Grid Connection Roadmap. Office of Scientific and Technical Information (OSTI), janvier 2023. http://dx.doi.org/10.2172/1924505.
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DENG, En-Feng, Liang ZONG, Yang DING et Xiao-Meng DAI. NUMERICAL INVESTIGATION ON SEISMIC PERFORMANCE OF AN INNOVATIVE CONNECTION FOR MODULAR STEEL CONSTRUCTION. The Hong Kong Institute of Steel Construction, décembre 2018. http://dx.doi.org/10.18057/icass2018.p.150.
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Shaheen, Susan, Elliot Shaheen, Adam Cohen, Jacquelyn Broader et Richard Davis. Managing the Curb : Understanding the Impacts of On-Demand Mobility on Public Transit, Micromobility, and Pedestrians. Mineta Transportation Institute, juillet 2022. http://dx.doi.org/10.31979/mti.2022.1904.
Texte intégralRésumé :
In recent years, innovative mobility and shifts in travel and consumption behavior are changing how people access and use the curb. Shared mobility—the shared use of a vehicle, bicycle, scooter, or other mode—coupled with outdoor dining, curbside pick-up, and robotic delivery are creating new needs related to the planning, management, and enforcement of curb access. This study examines curb planning and management from several angles, such as safety, social equity, and multimodal connections. This research employs a multi-method approach to identify the changing needs for curb space management and how to meet these needs through new planning and implementation policies and strategies. As part of this study, the authors conducted 23 interviews. Respondents were chosen to represent public, private, and non-profit sector perspectives. Additionally, the authors employed a survey of 1,033 curb users and 241 taxi, transportation network company (TNC), and public transportation drivers. The study finds that changes in mode choice and curbside use can result in a variety of impacts on access, social equity, congestion, device management, pick-up and drop-off, and goods delivery, to name a few. The curb also has the potential to be disrupted by emerging modes, such as robotic delivery vehicles (also known as personal delivery devices) and automated vehicles. As these emerging developments continue to impact the curb, it is becoming increasingly important for policymakers to have an appropriate framework for planning and managing curb space in urban areas.
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Mena Jara, Sonia Daniela, Ingeborg Meijer, Gaston Heimeriks et Tim Willemse. Driving the innovation process by connecting regional knowledge bases to local needs. Fteval - Austrian Platform for Research and Technology Policy Evaluation, avril 2022. http://dx.doi.org/10.22163/fteval.2022.543.
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Novel approaches are needed to support the creation of more open, inclusive, and self-sustaining R&I ecosystems in healthcare. This study analysed 3 European regions (Murcia ES), (Örebro SE), and (Republic of Cyprus CY), incorporating complementary approaches from Responsible Research and Innovation (RRI) and Research and Innovation Smart Specialisation Strategy (RIS3). The exercise entailed the identification of healthcare and innovation stakeholders and the characterisation of the policy landscape in each territory. Moreover, the strengths of the regional knowledge base was analysed by measuring the Revealed Comparative Advantage (RCA) indicator based on relatedness measurement, and by using micro-level fields analyses of scientific publications. This methodology allowed us to identify the fields and topics (strengths) that provide opportunities for innovation processes. Additional identification of social needs in the three territories showed profound differences regarding the alignment of the selected needs with respect to the regions’ capabilities. The results suggest that a timely direct interaction with territorial stakeholders can help in selecting the most promising innovation priorities that are based on local needs and knowledge. The process of interaction requires early engagement to support territorial ownership and is further reinforced by RRI policies in place.
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Hearn, Greg, Marion McCutcheon, Mark Ryan et Stuart Cunningham. Australian Cultural and Creative Activity : A Population and Hotspot Analysis : Geraldton. Queensland University of Technology, août 2020. http://dx.doi.org/10.5204/rep.eprints.203692.
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Grassroots arts connected to economy through start-up culture Geraldton is a regional centre in Western Australia, with 39,000 people and a stable, diverse economy that includes a working port, mining services, agriculture, and the rock-lobster fishing industry (see Appendix). Tourism, though small, is growing rapidly. The arts and culture ecosystem of Geraldton is notable for three characteristics: - a strong publicly-funded arts and cultural strategy, with clear rationales that integrate social, cultural, and economic objectives - a longstanding, extensive ecosystem of pro-am and volunteer arts and cultural workers - strong local understanding of arts entrepreneurship, innovative business models for artists, and integrated connection with other small businesses and incubators
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Peña, Ignacio, Tomás Gutiérrez et Milagros Gutiérrez. A Bridge to the Future : How the Rise of the Miami Startup Ecosystem can Become a Platform to Transform the Americas. Inter-American Development Bank, octobre 2021. http://dx.doi.org/10.18235/0003724.
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This study analyzes the rise of the Miami startup ecosystem and the opportunities for mutual benefit engendered by a strong connection with Latin America and the Caribbean (LAC). The exponential technology revolution and the boom of the LAC startup ecosystem creates a massive opportunity to build a talent-driven network of startup and knowledge ecosystems that could generate trillions of dollars in value and millions of employment, while igniting the industries of the future across the Hemisphere. The recent rise of the Greater Miami area's innovation ecosystem opens the possibility to unleash value and growth through building a bridge that connects ecosystems across the Americas.
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Ahmed AlGarf, Yasmine. AUC Venture Lab : Encouraging an entrepreneurial culture to increase youth employment. Oxfam IBIS, août 2021. http://dx.doi.org/10.21201/2021.7888.
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The American University in Cairo Venture Lab (V-Lab) is the first university-based startup accelerator in Egypt. Oxfam’s Youth Participation and Employment (YPE) programme in Egypt partnered with V-Lab to support youth in entrepreneurship and business startups. V-Lab provides dynamic business support to entrepreneurs with innovative and scalable ideas. Its work has brought about change in Egypt’s culture and business environment. In this case study, YPE and V-Lab make useful recommendations on how to strengthen the sustainability and growth of entrepreneurship in Egypt. V-Lab’s other initiatives include connecting graduates with potential investors. The accelerator’s startups have played an important role during the COVID-19 pandemic by helping to create employment opportunities, both directly and indirectly.
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Downes, Jane, dir. Chalcolithic and Bronze Age Scotland : ScARF Panel Report. Society for Antiquaries of Scotland, septembre 2012. http://dx.doi.org/10.9750/scarf.09.2012.184.
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The main recommendations of the panel report can be summarised under five key headings: Building the Scottish Bronze Age: Narratives should be developed to account for the regional and chronological trends and diversity within Scotland at this time. A chronology Bronze Age Scotland: ScARF Panel Report iv based upon Scottish as well as external evidence, combining absolute dating (and the statistical modelling thereof) with re-examined typologies based on a variety of sources – material cultural, funerary, settlement, and environmental evidence – is required to construct a robust and up to date framework for advancing research. Bronze Age people: How society was structured and demographic questions need to be imaginatively addressed including the degree of mobility (both short and long-distance communication), hierarchy, and the nature of the ‘family’ and the ‘individual’. A range of data and methodologies need to be employed in answering these questions, including harnessing experimental archaeology systematically to inform archaeologists of the practicalities of daily life, work and craft practices. Environmental evidence and climate impact: The opportunity to study the effects of climatic and environmental change on past society is an important feature of this period, as both palaeoenvironmental and archaeological data can be of suitable chronological and spatial resolution to be compared. Palaeoenvironmental work should be more effectively integrated within Bronze Age research, and inter-disciplinary approaches promoted at all stages of research and project design. This should be a two-way process, with environmental science contributing to interpretation of prehistoric societies, and in turn, the value of archaeological data to broader palaeoenvironmental debates emphasised. Through effective collaboration questions such as the nature of settlement and land-use and how people coped with environmental and climate change can be addressed. Artefacts in Context: The Scottish Chalcolithic and Bronze Age provide good evidence for resource exploitation and the use, manufacture and development of technology, with particularly rich evidence for manufacture. Research into these topics requires the application of innovative approaches in combination. This could include biographical approaches to artefacts or places, ethnographic perspectives, and scientific analysis of artefact composition. In order to achieve this there is a need for data collation, robust and sustainable databases and a review of the categories of data. Wider Worlds: Research into the Scottish Bronze Age has a considerable amount to offer other European pasts, with a rich archaeological data set that includes intact settlement deposits, burials and metalwork of every stage of development that has been the subject of a long history of study. Research should operate over different scales of analysis, tracing connections and developments from the local and regional, to the international context. In this way, Scottish Bronze Age studies can contribute to broader questions relating both to the Bronze Age and to human society in general.