10,055 research outputs found
Exploiting tacit knowledge through knowledge management technologies
No full textThe purpose of this paper is to examine the contributions and suitability of the available knowledge management (KM) technologies, including the Web 2.0 for exploiting tacit knowledge. It proposes an integrated framework for extracting tacit knowledge in organisations, which includes Web 2.0 technologies, KM tools, organisational learning (OL) and Community of Practice (CoP). It reviews a comprehensive literature covering overview of KM theories, KM technologies and OL and identifies the current state of knowledge relating to tacit knowledge exploitation. The outcomes of the paper indicate that Internet and Web 2.0 technologies have stunning prospects for creating learning communities where tacit knowledge can be extracted from people. The author recommends that organisations should design procedures and embed them in their Web 2.0 collaborative platforms persuading employees to record their ideas and share them with other members. It is also recommended that no idea should be taken for granted in a learning community where tacit knowledge exploitation is pursued. It is envisaged that future research should adopt empirical approach involving Complex Adaptive Model for Tacit Knowledge Exploitation (CAMTaKE) and the Theory of Deferred Action in examining the effectiveness of KM technologies including Web 2.0 tools for tacit knowledge exploitation
Distance and mean citation for first-last author relationship in three resolutions (100 m, 1 km, and 1000 km).
No full text<p>Distance and mean citation for first-last author relationship in three resolutions (100 m, 1 km, and 1000 km).</p
Pilbarana lowryi Stringer & King & Austin & Guzik 2022, sp. nov.
No full textPilbarana lowryi Stringer & King sp. nov. (Figs. 5–7) urn:lsid:zoobank.org:act: 35C8B0FC-98EE-411E-8AD8-C93784B618B0 Material examined. Holotype: female, WAM C78833 (10:7951; GenBank COI: OK170015, 28S: OK257013), Solomon Mine Project, Valley of the Kings Iron Deposit, 60 km north of Tom Price, WA, 22°09′45.36ʺS 117°53′39.36ʺE, coll. P. Bell and E. S. Volschenk, 20 January 2010. Paratypes: 1 female, WAM C78834 (10:0087; GenBank COI: OK170006, 28S: OK257012), Cappers Well, 70 km north of Tom Price, WA, 22°03′44.62ʺS 117°59′57.77ʺE, coll. S. Eberhard and S. Catomore, 7 October 2010; 1 male WAM C76988 (10:0082; GenBank COI: OP160221), Pigeon Well Bore, 70 km north of Tom Price, WA, 22°01′51.04ʺS 118°03′32.81ʺE, coll. S. Eberhard and S. Catomore, 7 October 2010. Diagnosis. Head with antennal sinus concave. Antenna 1 peduncular article 1 slightly longer than article 2. Antenna 2 peduncular articles 4–5 distinctly shorter than length of head; flagellum equal in length to peduncular article 5. Gnathopod 1 propodus approximately 2 times as long as broad; carpus approximately 3.5 times as long as broad. Pereopods 3–4 coxae with indistinct anterior lobe. Uropod 1 peduncle with one robust basofacial seta. Uropod 2 peduncle longer than inner ramus. Description. Holotype female. Length 8.7 mm. Head (Fig. 5A) with antennal sinus concave or rounded, anteroventral corner rounded. Antenna 1 (Fig. 5B) peduncular article 1 slightly longer than article 2; peduncular article 3 around one third length of article 2; flagellum of 18 articles, with one ventral aesthetasc on proximal margin of most articles. Antenna 2 (Fig. 5C) slender, around two thirds length of antenna 1; peduncular article 4 approximately equal in length to peduncular article 5, both articles shorter than length of head; flagellum of 7 articles, equal in length to peduncular article 5. Mandible (Fig. 5D) palp article 1 twice as long as broad, around half length of articles 2 and 3, articles 2 and 3 approximately equal in length. Maxilla 1 (Fig. 5E) outer plate with six denticulate robust setae. All other mouthparts (Figs. 5F, G) as in generic description. Gnathopod 1 (Fig. 6A) coxa anteriorly projected with one associated seta, posterodistal corner reduced; propodus approximately 2 times as long as broad; carpus approximately 3.5 times as long as broad. Gnathopod 2 (Figs. 6B) coxa anteriorly projected with associated setae; propodus approximately 2 times as long as broad. Pereopods 3–4 (Figs. 6C, D) coxae with indistinct anterior lobe. Pereopod 5 (Fig. 6E) coxa anterior lobe gradually less distinct, with associated seta, posterior lobe very small. Uropod 1 (Fig. 7A) peduncle with one robust basofacial seta, row of robust setae along dorsal margin. Uropod 2 (Fig. 7B) peduncle longer than inner ramus, row of setae along dorsal margin. Uropod 3 (Fig. 7C) outer ramus cylindrical with 2 articles, first article approximately 1.5 times length of second article. Distribution. 60–70 km north of Tom Price, Fortescue River Basin, Pilbara, Western Australia. Etymology. Named in honour of Dr Jim Lowry for his substantial and valuable contribution to Australian amphipod taxonomy. Remarks. Specimens of P. lowryi sp. nov. were sampled from three bores within the Fortescue River Basin near the Hamersley Range in the central area of the Pilbara, approximately 60–70 km north of the town of Tom Price (Fig. 1). The holotype specimen was collected from a deposit within the Solomon Mining Project, while paratypes were sampled from bores outside the impacted region. These specimens were found to be morphologically identical, and molecular analyses revealed relatively low molecular COI divergence estimates of between 2.8–3.1%. These divergences suggest some slight phylogeographic structuring of populations, potentially due to distance between collection sites, but are, nonetheless, within the range of amphipod intraspecific variation (Tempestini et al. 2018; King et al. 2022). In addition, no juveniles were examined and so should be assessed in further collections, and no morphological differences were observed between males and females (as for P. grandis sp. nov.).Published as part of Stringer, Danielle N., King, Rachael A., Austin, Andrew D. & Guzik, Michelle T., 2022, Pilbarana, a new subterranean amphipod genus (Hadzioidea: Eriopisidae) of environmental assessment importance from the Pilbara, Western Australia, pp. 559-573 in Zootaxa 5188 (6) on pages 566-567, DOI: 10.11646/zootaxa.5188.6.4, http://zenodo.org/record/710369
Simulation and validation of disbond growth in co-cured composite skin-stringer specimens using cohesive elements
No full text Separation of skin and stringer is likely to be a failure mode in co-cured composites stiffened panels where there is considerable out-of-plane deformation. Such deformations are possible when a stiffened skin structure is loaded in compression/shear beyond buckling or in structures which contain a disbond/delamination at the skin–stringer interface. Prediction of damage initiation and progressive growth in numerical simulations require parameters such as interface fracture toughness which have to be obtained through specimen tests. Since interface toughness is generally mode dependent, this study deals with the design and testing of three different configuration of blade stiffened co-cured composite skin–stringer specimens under mode-I and mode-II dominated loading. Finite element numerical models are developed using three-dimensional cohesive elements to predict the disbond growth under mode-I and mode-II dominated loading. The work also addresses the complexities in the convergence of numerical simulations that arise due to cohesive elements. A systematic way to obtain the best values for cohesive element parameters while finding a balance between accuracy of the results, computation time and numerical stability is presented. The present cohesive element modelling and analysis methodology successfully predicted the disbond growth in skin–stringer specimen and can be used to predict disbond/delamination onset or growth in composite stiffened structures subjected to high bending. </jats:p
Onderzoek naar oorzaak schade dijkvak Westhoek - Zwarte Haan (km 13,000 - km 19,800) te Friesland
No full textIn 2004 is er schade geconstateerd aan de asfaltbekleding op de dijk tussen Westhoek en Zwarte Haan. Deze schade heeft zich in het afgelopen jaar progressief voortgezet. De asfaltdijkbekleding op de dijk tussen Westhoek en Zwarte Haan is aangelegd in 1972 - 1973. De lengte van het tracé bedraagt 6,8 km. De ligging van het onderzochte dijktraject (km 13,000 - 19,800) is in bijlage 1 weergegeven. De bekleding sluit aan de onderzijde aan op een bekleding van los gestorte klinkers die gepenetreerd zijn met asfaltmastiek. De bekleding heeft een dikte van circa 0,25 m en loopt in de onderste 2 m in een scheg naar een dikte van circa 0,50 m. Het asfaltbeton is aangelegd op een onderlaag van zand. Onder het zand bevindt zich de oorspronkelijke dijkkern van slecht doorlatende grond.Asfaltbekledinge
Investigation of Dempster Highway Sinkholes: km 82 and Two Moose Lake
No full textThis report presents the results of a project that aims to understand and, if possible, recommend actions to remediate the issues caused by the formation of sinkholes at km 82 and km 102-103 of the Dempster Highway. At km 82, this has resulted in sudden collapse of the
right-hand side driving surface of the highway. Major sinkholes have been repaired at this location on at least two occasions (June 2014 and Aug 2014) and the culvert at the site was replaced in October 2014. Undated photos suggest earlier sinkholes have formed at this location (SRK Consulting, 2014). Subsidence was also repaired in August 2015. At km 102-103, there has been general subsidence and sinkhole formation along the left-hand side of the road. Subsidence between km 102 and 103 has been regularly repaired as part of routine highway
maintenance and is therefore not documented. At this site, Two-Moose Lake is now encroaching on the road embankment.Repor
Pilbarana grandis Stringer & King & Austin & Guzik 2022, sp. nov.
No full textPilbarana grandis Stringer & King sp. nov. (Figs. 2–4) urn:lsid:zoobank.org:act: D7C6FEE5-FF95-49BB-83FB-47875CC57A15 Material examined. Holotype: male, WAM C78830 (RL1779), Cork Tree Well, Cane River Conservation Park, WA, 22°21′22.0ʺS 115°30′35.4ʺE, coll. R. Leijs and R. A. King, 28 June 2011. Paratypes: 3 males, 1 female, 1 juvenile, WAM C78831 (RL1779; GenBank COI: OK170022, OK170023), collection data as for holotype; 1 male, WAM C78832 (RL1750), Cork Tree Well, Cane River Conservation Park, WA, 22°21′22.0ʺS 115°30′35.4ʺE, coll. R. Leijs and R. A. King, 24 June 2011. Diagnosis. Head with antennal sinus square-shaped. Antenna 1 peduncular article 1 approximately equal in length to article 2. Antenna 2 peduncular articles 4–5 distinctly longer than length of head; flagellum shorter than peduncular article 5. Gnathopod 1 propodus approximately 2.5 times as long as broad; carpus greater than 4 times as long as broad. Pereopods 3–4 coxae with small anterior lobe. Uropod 1 peduncle with two or more robust basofacial setae. Uropod 2 peduncle similar in length to inner ramus. Description. Holotype male. Length 7.0 mm. Head (Fig. 2A) with antennal sinus square-shaped, anteroventral corner rounded. Antenna 1 (Fig. 2B) peduncular article 1 approximately equal in length to article 2; peduncular article 3 around one third length of article 2; primary flagellum of 16 articles, with one ventral aesthetasc on proximal margin of most articles. Antenna 2 (Fig. 2C) slender, around two thirds length of antenna 1; peduncular article 4 approximately equal in length to peduncular article 5, both articles each longer than length of head; flagellum of 7 articles, shorter than peduncular article 5. Mandible (Fig. 2D) palp article 1 twice as long as broad, around half length of articles 2 and 3, articles 2 and 3 approximately equal in length. Maxilla 1 (Fig. 2E) outer plate with seven denticulate robust setae. All other mouthparts (Figs. 2F, G) as in generic description. Gnathopod 1 (Fig. 3A) coxa anteriorly projected with one associated seta, posterodistal corner reduced and somewhat concave; propodus approximately 2.5 times as long as broad; carpus greater than 4 times as long as broad. Gnathopod 2 (Figs. 2A, 3B) coxa anteriorly projected with associated seta, propodus approximately 2 times as long as broad. Pereopods 3–4 (Figs. 3C, D) coxae with small anterior lobe and associated setae. Pereopods 5–7 (Figs. 2A, 3E–G) coxae anterior lobe gradually less distinct (coxae 5–6 lobe with associated seta), posterior lobe very small. Uropod 1 (Fig. 4A) peduncle with two robust basofacial setae, row of robust setae along dorsal margin. Uropod 2 (Fig. 4B) peduncle similar in length to inner ramus, row of setae along dorsal margin. Uropod 3 (Fig. 4C) outer ramus cylindrical with 2 articles, first article approximately 1.6 times length of second article. Distribution. Cane River Conservation Park, Ashburton River Basin, Pilbara, Western Australia. Etymology. This species name is taken from the Latin word ‘grandis’, and refers to the large body size of this and other species of Pilbarana. Remarks. Overall, the two new species of Pilbarana can be distinguished morphologically based on the shape of the antennal sinus, the length and elongation of antennal articles, differences in the shape of coxae, the length of the first gnathopod propodus, the number of robust basofacial setae on the peduncle of the first uropod, and the length of the peduncle of the second uropod versus the length of the rami. Examination of specimens of P. grandis sp. nov. has revealed that individuals may possess between two (most common) and four robust basofacial setae on the peduncle of the first uropod, with the number of basofacial setae further fluctuating, in some cases, between the pair of uropods for a single specimen. Specimens (except for juveniles), nonetheless, never possess only a single basofacial seta, contrasting with specimens of P. lowryi sp. nov. that always exhibit only one robust basofacial seta on the peduncle of the first uropod. The number of robust basofacial setae on the peduncle of uropod 1 is one of the few morphological characters that separate distinct lineages of Nedsia from the Pilbara (King et al. 2022) and, consequently, appears to represent a useful and consistent distinguishing eriopisid trait. Molecular analyses further revealed that the two new species of Pilbarana are highly divergent genetically, with approximately 13–14.5% COI divergence estimated (with 0.2% between sequences of P. grandis individuals). This level of divergence is well above the 5–10% threshold principally followed by King et al. (2022) in their description of new Nedsia species, and is indicative of long-term isolation in discrete (and distant) subterranean habitats. Pilbarana grandis has, thus far, only been sampled from one well in the Cane River Conservation Park in the Pilbara region and is located approximately 250 km from bores in the Fortescue Basin where P. lowryi was collected (Fig. 1).Published as part of Stringer, Danielle N., King, Rachael A., Austin, Andrew D. & Guzik, Michelle T., 2022, Pilbarana, a new subterranean amphipod genus (Hadzioidea: Eriopisidae) of environmental assessment importance from the Pilbara, Western Australia, pp. 559-573 in Zootaxa 5188 (6) on pages 563-566, DOI: 10.11646/zootaxa.5188.6.4, http://zenodo.org/record/710369
Experimental validation of nonlinear Fourier transform-based Kerr-nonlinearity identification over a 1600km SSMF link
No full textRecently, a nonlinear Fourier transform-based Kerr-nonlinearity identification algorithm was demonstrated for a 1000 km NZDSF link with accuracy of 75%. Here, we demonstrate an accuracy of 99% over 1600 km SSMF. Reasons for improved accuracy are discussed.Accepted Author ManuscriptTeam Sander Wahl
Operation Study of the Node of Stringer Staged Connection Point of the Railway Bridge Track-Way
No full textС. Ключник: ORCID 0000-0001-7771-8377UKR: Мета. Поверхове сполучення балок проїзної частини залізничних мостів найбільш просте за конструкцією, але внаслідок конструктивних недоліків виникають численні дефекти. Метою цієї роботи є дослідження пропонованих раніше способів підсилення вузла спирання балок проїзної частини поверхового сполучення, а також дослідження роботи запропонованого автором підсилення. Методика. Проаналізовано стан металевих мостів, експлуатованих на залізниці. Виявлено, що вирішальним елементом для визначення вантажопідйомності всього моста є балки проїзної частини. Для досягнення поставленої мети за допомогою методу скінченних елементів проведено аналіз напруженого стану вузла спирання поздовжньої балки на поперечну без підсилення та з підсиленням. Виявлено раціональні параметри запропонованого вузла підсилення. Розрахунки проведено в програмному забезпеченні «Selena». Результати. Автор отримав і проаналізував деформаційно-напружений стан вузла сполучення поздовжніх балок із поперечними за їх поверхового розташування, підібрав раціональні параметри елементів підсилення вузла спирання балок поверхового сполучення та проаналізував деформаційно-напружений стан нового вузла сполучення поздовжніх балок із поперечними за їх поверхового розташування на основі типових прогонових споруд «Проєктстальконструкції» (ПСК). Аналіз показує, що після пропонованого підсилення максимальні напруження в горизонтальних поличках поясних кутиків поздовжніх і поперечних балок, що руйнували конструкції, зменшились на 43–73 %. Наукова новизна. У роботі проведено аналіз напружено-деформованого стану металевих балок проїзної частини поверхового розташування з урахуванням спільної роботи балок із несучими фермами, а також дос-ліджено напружено-деформований стан пропонованого підсилення вузла спирання металевих балок з виявленням раціональних параметрів. Практична значимість. Зазначений спосіб ремонту з підсиленням рекомендовано як найбільш раціональний для моста через річку Інгулець на 109-му км лінії Верхівцеве – Долинська (договір № 94/2011–Цтех–177/2011–ЦЮ від 30.09.2011). За поданими результатами було оформлено патент на корисну модель № 109806 від 12.09.2016.ENG: Purpose. The staged connections of the stringers of railway bridge track-way have the simplest design, but some design flaws result in numerous defects. The purpose of this work is an investigation of the previously proposed methods of strengthening the support node for the stringers of the track-way of a staged communication, as well as investigation of the work of the reinforcement proposed by the author. Methodology. The author analyzes the condition of metal bridges operated on the railway. It was found that the decisive element in determining the load capacity of the entire bridge are the stringers of the track-way. To achieve this goal, the author analyzed the stress-strain state of the support node of the stringer on the crossbar without and with reinforcement using the finite element method. The discovered rational parameters of the proposed reinforcement unit. The calculations were performed in Selena software. Findings. Stress-strain state of the connection point of the stringers with the floor beamsnode on condition of their staged position was obtained and analyzed. The author selected the rational parameters of the reinforcement elements of the stringer support node for the staged communication and analyzed stress-strain state of the new connection node of the stringers with the floor beams at their staged location based on typical spans of Proiektstalkonstruktsii LLC (PSK). The analysis shows that after the proposed reinforcement, the maximum stresses in the horizontal legs of the flange angles of the stringers and floor beams, which destroyed the struc-tures, decreased by 43–73%. Originality. The work analyzes the stress-strain state of metal stringers of the track-way of the staged location taking into account the joint work of stringers with load-bearing trusses, as well as the stress-strain state of the proposed reinforcement of the support node of metal stringers with the identification of rational parameters. Practical value. This method of repair with reinforcement is recommended as the most rational for a bridge over the Inhulets river at 109 km of the Verkhivtseve – Dolynska Railway (contract No. 94/2011–TsTekh–177/2011–ETU dated 09/30/2011). Based on these results, a patent for utility model No. 109806 dated 09/12/2016 was issued
Potential for leverage between the quality management and knowledge management professional communities : an intellectual capital mapping
No full textThis research describes the problems facing two important professional communities,
Quality Management (QM) and Knowledge Management (KM), which face multiple
challenges in their efforts to impact the organisations in which they operate and
contribute significantly to their performance and financial results. The two
communities are positioned at very different points in their maturity life cycle. While
QM is an aging community that is trying to regain its relevancy, the KM community is
still in its infancy, and is struggling to mature. Many practitioners and academics
consider both to be "over promising and under delivering".
The aim of this research is to explore how the two communities can enhance their
effectiveness. As a theoretical framework the author used the concept of Intellectual
Capital, which is usually used in the context of formal organisations, and applied it to
the case of professional communities. The hypothesis states that the two
communities have complementary Intellectual Capitals, i. e. that the intangible assets
of each can be shared and exchanged through different patterns of interaction. An
investigation was conducted into whether the flows of such intangible assets between
Quality Management (QM) and Knowledge Management (KM) can increase their
organisational effectiveness.
The research surveyed the scientific as well as professional literature and classified
the evidence on QM/KM interactions into twelve patterns that cover the spectrum,
from complete ignorance of each other to full co-operation.
Two case studies are explored, where explicit efforts to encourage flows of
Intellectual Capital were demonstrated, one at a company level and the other at a
national level.
A unique methodology and visual tool, to map the Intellectual Capital of professional
communities, was developed and used to draw a generic map of the complementary
ICs of QM and KM and the potential flows between them, as perceived by a diverse
body of experts from both communities.
Finally, a series of (computer aided) focus groups were held with professionals.
Based on triangulation of the data between the 14 expert interviews, 2 in-depth case
studies, 68 focus group attendees and the literature, the following contributions to
knowledge were identified:
0 Creation of a new scheme to classify interactions between professional
communities.
O The application of the Intellectual Capital concept to professional
communities.
Q New insights into the situation of QM and KM communities using the
framework of Intellectual Capital, and the complementary nature of their
intangible assets.
Q New perspective on flows of Intellectual Capital between different entities
(in this case professional communities) as a way to increase the
effectiveness of both.
QA new methodology to self-assess and map Intellectual Capital
- …
