Spread of popularity of short track speed skating in the world and in Lithuania, rapid rise of mastery and increasing concurrence and competition among sportsmen encourage a study of scientifically based technologies of preparation for the short track speed skating. The paper overviews the characteristics of the development of structure in short track speed skating long-term trainings together with methods of training, physical and functional development. The aim of the paper: to find out the peculiarities of short track speed skating sportive training i.e. preparation in Lithuania. People under investigation were the members of the national short track speed skating team of Lithuania – S.K., P.G. and A.S. Sportive achievements and the analysis of training strain of the skaters were observed. Laboratory research has been done in the laboratory at the main meso-cycle of special preparation in Vilnius Pedagogical University. It was the first time that the skater S.K. has taken part in the research that has been done in Lithuania. Examination of sportsmen’s physical development and sportive readiness was accomplished in general and the special meso-cycles of preparation. The results of the research correspond to the norms that are set to the sportsmen. A programme for a year’s period of sportive preparation to Lithuanian short track speed skating team was structured. The programme consists of the following issues: selection of sportsmen and groups of age, physical strains and... [to full text]

<p>South Africa s coal and platinum mineral resources are crucial resources towards creating an alternative and environmentally sustainable energy system. The beneficiation of these natural resources can help to enhance a sustainable and effective clean energy base infrastructure and further promote their exploration and exportation for economics gains. By diversification of these resources, coal and the platinum group metals (PGMs) especially palladium market can be further harnessed in the foreseeable future hence SA energy security can be guaranteed from the technological point of view. The South Africa power industry is a critical sector, and has served as a major platform in the South African socio-economic development. This sector has also been identified as a route towards an independent energy base, with global relevance through the development of membrane technologies to effectively and economically separate and purify hydrogen from the gas mixtures released during coal gasification. The South Africa power industry is a critical sector, and has served as a major platform in the SA&rsquo / s socio-economic development. This sector has also been identified as a route towards an independent energy base, with global relevance through the development of membrane technologies to effectively and economically separate and purify hydrogen from the gas mixtures released during coal gasification. Coal gasification is considered as a source of hydrogen gas and the effluent gases released during this process include hydrogen sulphide, oxides of carbon and nitrogen, hydrogen and other particulates. In developing an alternative hydrogen gas separating method, composite membrane based on organic-inorganic system is being considered since the other available methods of hydrogen separation are relatively expensive.<br /> &nbsp / </p>

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No description available.

This study aims to investigate the stable isotopic characteristics of meteoric and ground waters, and to obtain spring flow rates in the Coronet Peak Skifield, Queenstown. Spring flows were gathered during the winters of 2008 and 2009, whilst water samples were collected from precipitation, springs, reservoirs and groundwater during July, August and September 2009. The spring flows were examined and the water samples were analysed for δD and δ¹⁸O values using the CF-IRMS at the University of Canterbury. A database has been gathered from all natural water sources to give a local meteoric water line (LMWL) for the area that fits clearly with the global meteoric water line. The LMWL has an R2 value of 0.97 and the equation is δD = 8 δ¹⁸O +10. An understanding of evaporation as it occurs in the water storage reservoirs of the mountain has also been obtained, giving rise to a local evaporation line. The stable isotope ratios of hydrogen and oxygen within precipitation have been used extensively to characterise the hydrogeology with emphasis on altitude effects, storm duration and variations in storm track trajectories. Of these three phenomena, it is the trajectory of the storm track that is best shown to affect the composition of precipitation in this area. The air masses advancing on the study area from the north being more depleted in their isotopic signatures, with approximate δD and δ¹⁸O values of –130‰ and -16‰. The air masses approaching from a southerly direction are more positive in comparison, having approximate δD and δ¹⁸O values of –65‰ and -9‰. The altitude effect in precipitation on the Skifield has led to an altitude gradient being found: for every 100-metre increase in elevation, δ¹⁸O decreases by 0.71‰. However there were some inconsistencies. The influence on precipitation from storm duration is also inconsistent in this area. The R2 values range from 0.14 to 0.99, but this method does not take into account the position of the individual samples. Some samples did not plot in the expected order that is governed by a decrease in stable isotopic ratios with storm duration. The stable isotopic compositions within meteoric waters can be used as tracers of water sources. The isotope date of the springs also infers an altitude effect. The springs gave an altitude gradient of a decrease –0.43‰ with each 100-metre increase in elevation. This indicates that precipitation is the main influence on the stable isotopic composition of the springs in this area. However, data shows differences between the current precipitation and the groundwater compositions, indicating that present precipitation is not flowing from the springs, past precipitation is. The stable isotopic compositions of the springs have also been correlated with groundwater isotope data and suggest the sources of the springs are groundwater dominated. Although some springs compositions indicate an influence by current precipitation. This is shown by a negative stable isotopic trend in the precipitation sampled in August, corresponding with a relatively negative stable isotopic composition in some springs during this time period. Monitoring of spring flows on Coronet Peak have led to an average winter flow rate being established of 26.5 litres per second. Spring flow rates range from 0.25 – 6 litres per second. This monitoring has indicated the springs of the greatest yield that are not already being utilised on the Skifield. It is these springs that should be further investigated as to whether they would provide a sustainable source of water on the mountain. This locally derived water would then be utilised for the purposes of artificial snowmaking and other activities and amenities that are currently operated by NZ Ski on Coronet Peak.

This study examines perceptions of 12 full-time non-tenure track faculty members about their professional and academic selves in a research-intensive university. A phenomenological approach is used to gain insight into the complexities of the experience of being a full-time faculty member, off the tenure-track, whose primary responsibility is teaching within a research-intensive institution. The notion of tenurestream as the only desired path to being an academic is challenged by these faculty members’ understanding of their identities. This researcher considers how professional identities may be understood and suggests that the meanings and values these faculty members attach to their professional roles may be embedded in their perceptions of how their role fits within the department. Throughout this qualitative inquiry, the perspectives of these faculty members are positioned as a primary source of data about the experience of being a full-time non-tenure track faculty member. By using a phenomenological approach and taking a constructivist perspective this researcher finds that extant theories that view this population through a deficit model are inaccurate. Additionally, essentialist and homogenizing descriptions of this population are also found to be insufficient. A qualitative analysis suggests the viability of an alternative description of this population, one which reflects the nuanced view of professional identity these participants expressed. Based on structural categories adapted from Martin’s (2002) three perspective view of organizational culture, their perceptions are categorized according to the congruence expressed between their social identity and their professional role. Perceptions shared about their departmental culture are similarly categorized which provides insight about the influence of policies, practices, and collegial interactions on professional lives.

It has been desirable for years to develop non-intrusive/non-invasiveprocedures to determine the pressures and stresses at various levels andinterfaces in the railroad track structure in order to optimize track designs andimprove subsequent track performance. Recent research has developedsatisfactory procedures for measuring pressures in the track structure at theballast/subballast/subgrade levels using earth pressure cells. The researchreported in this thesis documents the development of a technique for measuringthe pressures in the track, at the rail/tie plate/tie interfaces, using a very thinpressure sensitive Tekscan sensor. The Tekscan Measurement System uses asensor composed of a matrix-based array of force sensitive cells, similar to ministrain gauges, to obtain accurate pressure distributions between two surfaces inthe track. This thesis specifically describes: 1) the optimum procedure to installthe sensors into the track, 2) the recommended practices to effectively collectdata with the software, and 3) the accepted techniques for analyzing the results.Both laboratory calibration and in-track testing have been conducted and theresults are presented. The findings attest to the usefulness and practicality of theprocedure for accurately measuring pressures in railroad tracks. The proceduremay also be applicable for a wide variety of specific track related measurementssuch as validating curve geometric criteria, assessing crossing diamond impactpressures, and evaluating the advantages/disadvantages of various types of tieplates, fastenings and tie compositions.

Under de senaste åren har belastningen på akutsjukvården ökat, akutmottagningarna har försökt genom organisatoriska förändringar förkorta väntetiderna för patienter som behöver akutsjukvård. Socialstyrelsen har krävt att landets sjukhus inför så kallade fast track eller snabbspår. Fast track innebär att patienterna passerar förbi akutmottagningar och får en mer påskyndad undersökning och behandling. Därför har man infört en systematisk prioritering av patientgrupper med avgränsade och relativt lättdiagnostiserade åkommor. Behovet av förändringar i vården är mer tydligt i dag än tidigare. Kravet berör SOS alarm, ambulanssjukvården, den primära och kommunala vården och kräver ett snabbt samt effektivt samarbete. Tiden för diagnos och behandling förväntas där igenom bli kortare. Syftet med studien är att beskriva ambulanssjuksköterskans upplevelse vid användandet av fastställda behandlingsriktlinjer för fast track patienter.  Studien baseras på kvalitativa intervjuer och efter genomförd innehållsanalys framkom fyra huvudkategorier. Resultatet visar att fastställda behandlingsriktlinjer skapar trygghet hos ambulanssjuksköterskan men vissa fast track kan skapa otrygghet på grund av otydlighet i behandlingsriktlinjerna, att logistiken mellan berörda enheter inte alltid fungerar vilket upplevs frustrerande och upplevelsen av utebliven utvärdering samt att inte kunna påverka behandlingsriktlinjerna. Diskussionen bygger på vinsterna både för patienten och organisationen med processbaserat arbetssätt men även på tillgången och efterfrågan på ambulanssjukvårdens resurser som kan ge effekter på ambulanssjuksköterskans arbetsmiljö.

This thesis presents an adaptive and reconfigurable mobile robot: the Dual Mobile Robot (DMR). It is driven by two adaptive track-wheel driving modules that combine wheels and tracks to allow real-time interchangeability according to terrain condition. The DMR can automatically convert from a wheel-based robot into a track-based robot by rotating the track-wheel driving modules by 90 degrees, either only tracks or wheels contact with the ground without any interference. It can be driven as a wheel-based robot when operating over a paved road to achieve higher speed and low energy consumption, and as a track-based robot over uneven terrain. In addition, unlike most state-of-the-art mobile robot designs that have an integrated architecture, this design provides a modular architecture which allows modifications and upgrades to be performed via simple replacements or local changes of modules. To establish the modular architecture, this research utilized a unique design paradigm, “Design for product adaptability”. A function-based design process for product adaptability has been conducted in the conceptual design stage. By following the design process, two types of design alternatives of the DMR have been created. After the best product configuration was chosen through evaluation and prioritization, the selected configuration has been implemented by detail design. The DMR prototype was developed and tested to demonstrate its adaptability and advanced mobility functions in real-world environments. The experimental results successfully validated the hypothesis of the proposed robot with its track-wheel interchangeable ability, significantly exceeding the capability of other existing systems.

This thesis presents an adaptive and reconfigurable mobile robot: the Dual Mobile Robot (DMR). It is driven by two adaptive track-wheel driving modules that combine wheels and tracks to allow real-time interchangeability according to terrain condition. The DMR can automatically convert from a wheel-based robot into a track-based robot by rotating the track-wheel driving modules by 90 degrees, either only tracks or wheels contact with the ground without any interference. It can be driven as a wheel-based robot when operating over a paved road to achieve higher speed and low energy consumption, and as a track-based robot over uneven terrain. In addition, unlike most state-of-the-art mobile robot designs that have an integrated architecture, this design provides a modular architecture which allows modifications and upgrades to be performed via simple replacements or local changes of modules. To establish the modular architecture, this research utilized a unique design paradigm, “Design for product adaptability”. A function-based design process for product adaptability has been conducted in the conceptual design stage. By following the design process, two types of design alternatives of the DMR have been created. After the best product configuration was chosen through evaluation and prioritization, the selected configuration has been implemented by detail design. The DMR prototype was developed and tested to demonstrate its adaptability and advanced mobility functions in real-world environments. The experimental results successfully validated the hypothesis of the proposed robot with its track-wheel interchangeable ability, significantly exceeding the capability of other existing systems.