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Using Organisational Culture to Enhance Knowledge Sharing in Virtual Communities
Imran Khan,
Abel Usoro,
Malcolm Crowe
Issue:
Volume 5, Issue 1, February 2020
Pages:
1-11
Received:
17 April 2019
Accepted:
3 July 2019
Published:
31 January 2020
Abstract: Many knowledge sharing models have been developed but they mostly explain how knowledge flows from source to destination and hardly provide adequately validated organisational cultural factors that affect knowledge sharing in virtual communities (VCs) though VCs are recognised in literature as a software tool for knowledge sharing in organisations. The research reported in this paper undertook this task by developing a conceptual model to hypothesise the relationship between organisational culture (support, innovation, co-ordination and rules orientations) and knowledge sharing. Data was collected from over 200 VC members. Detailed group analyses were performed to test the conceptual model. The research found that support, co-ordination and rules orientation have positive causal relationships with sharing knowledge online. The research also highlights that just a software tool like a VC will not be sufficient to enable knowledge sharing online. The implication is that training, support in personal and work problems, inter-departmental co-ordination and teamwork will have positive affect on knowledge sharing in VCs. Also, face-to-face gatherings and a leading role of managers to share their knowledge will increase online knowledge sharing. The research has implications for KM (Knowledge Management) practitioners, managers, and information systems researchers. The findings of the research can be used in assessing VC knowledge sharing systems plans from an organisational cultural perspective.
Abstract: Many knowledge sharing models have been developed but they mostly explain how knowledge flows from source to destination and hardly provide adequately validated organisational cultural factors that affect knowledge sharing in virtual communities (VCs) though VCs are recognised in literature as a software tool for knowledge sharing in organisations....
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Comprehensive Research on Development of the New Blade Bits Design
Boris Vladimirovich Fedorov,
Gulzhan Abdullaevna Kudaikulova,
Boranbay Tovbasarovich Ratov,
Akniyet Rabbimuly Bayboz
Issue:
Volume 5, Issue 1, February 2020
Pages:
12-17
Received:
8 January 2020
Accepted:
31 January 2020
Published:
20 February 2020
Abstract: This article presents data on the development of the peak-shaped blade bit with an increased productivity, resistance and reduced energy capacity used at drilling wells in soft rocks and partially in rocks of medium hardness. In order to achieve this goal a comprehensive research with the theoretical, design and development and experimental works were carried out. It is shown that the distribution of the axial load on the radial cutters of the bit is uneven, which is a reason for such complication as the "hanging" of the bit over the bottom of the well. As a result of the research works, the peak-shaped blade bit was developed and patented, which increases drilling productivity by 24%.
Abstract: This article presents data on the development of the peak-shaped blade bit with an increased productivity, resistance and reduced energy capacity used at drilling wells in soft rocks and partially in rocks of medium hardness. In order to achieve this goal a comprehensive research with the theoretical, design and development and experimental works w...
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Laboratory Experiment on Enhanced Oil Recovery Using Nanoparticles (NPs) and Permeability Alteration Due to Their Retention in Porous Media
Odo Jude Emeka,
Ohia Princewill Nnaemeka,
Nwogu Ngozi,
Oguamah Ifeanyi,
Ekwueme Stanley,
Ezeh Samuel Chukwudiegwu
Issue:
Volume 5, Issue 1, February 2020
Pages:
18-26
Received:
14 January 2020
Accepted:
10 February 2020
Published:
17 March 2020
Abstract: After secondary flooding, the process of injecting chemicals such as Nanoparticles into the reservoir in order to release and produce the trapped oil in that reservoir is called chemical flooding enhanced oil recovery (CEOR). The trapped oil is due to some forces such as viscous, gravity and capillary forces. Several reservoir problems have been solved with the use of Nanoparticles but the disadvantage is the retention of these Nanoparticles in the pore spaces which can cause pore blockage of reservoir rock and reduce its permeability. The primary aim of oil industry is to find the effect of these nanoparticles on oil recovery. In this work, some types of nanoparticles were selected for sand-pack oil displacement flood test. These Nanoparticles are Magnesium oxide (MgO), Aluminum oxide (Al2O3) and silicon oxide (SiO2). They were selected because of their effect to improve oil recovery. They were used to conduct enhanced oil recovery and to evaluate the effect of their retention in porous media at 45°C and 3000 – 3500 Pisa. The Nanoparticles were dispersed in brine. The control experiment and the experiment when Nanoparticles were dispersed in brine were the two set of experiment conducted. The control experiment was used as a bench mark to compare the effect of nanoparticles on oil recovery. From the results obtained from this experiment, Aluminum oxide (Al2O3) was the best performed Nanoparticle after enhanced oil recovery flooding process. Nanoparticles were used to prepare the nanofluids used for tertiary recovery. Nanofluids used to displace oil yield better results but when only brine was used, the recovery was low compared with that of nanoparticles. Increase in nanoparticle concentration increases oil recovery. There was a decrease in permeability of the reservoir rock. Increase in nanoparticles concentration increases the total cost of preparing the nanofluid. The decrease in permeability is caused by pore blockage due to nanoparticles retention in porous media. Only Al2O3 at 0.2%wt is economical feasible compared with other nanoparticles. The ability of nanoparticles to alter certain factors in the formation and in oil properties can be taken as advantage on oil recovery.
Abstract: After secondary flooding, the process of injecting chemicals such as Nanoparticles into the reservoir in order to release and produce the trapped oil in that reservoir is called chemical flooding enhanced oil recovery (CEOR). The trapped oil is due to some forces such as viscous, gravity and capillary forces. Several reservoir problems have been so...
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Determining the Effects of Chemical Admixtures on Roller Compacted Concrete (RCC)
Mohammad Arif Nero,
Soner Haldenbilen
Issue:
Volume 5, Issue 1, February 2020
Pages:
27-34
Received:
8 April 2019
Accepted:
31 January 2020
Published:
17 March 2020
Abstract: The worldwide use and implementation of roller compacted concrete (RCC) is growing because of its good technical and economic advantages especially here in turkey. Chemical admixtures basically used for conventional concrete to increase its strength and produce a good quality concrete, and there are so many companies produce chemical admixtures for conventional concrete but only few companies produce chemical admixtures for roller compacted concrete (RCC). We were able to find the only company in turkey “Lyxor” to produce chemical admixtures for RCC; meanwhile this research aims to dictate the effectiveness of some chemical admixtures for roller compacted concrete (RCC) mixtures. We have conducted a test method to characterize some of the properties of RCC and these include the compressive strength and flexural strength with direct shear test. In this research we have used mainly 2 different types of chemical admixtures which include 3 types of superplasticizers which are Nanoment SP – Superplasticizers, Nanoment MR – Midrange Plasticizer, Nanoment HP – New Generation Superplasticizers, and the other type is Nano Aer – Air Entraining chemical admixture. We have conducted the test method by preparing 3 different RCC samples using each chemical admixture and tested them constantly within 3 and 28 days comparing them with 3 different None-admixed RCC samples which was prepared with the same procedure, and in the final we have prepared the test result table of each and every sample and the comparison chart as well. In the last part some recommendations and suggestions for the use of these chemical admixtures are mentioned.
Abstract: The worldwide use and implementation of roller compacted concrete (RCC) is growing because of its good technical and economic advantages especially here in turkey. Chemical admixtures basically used for conventional concrete to increase its strength and produce a good quality concrete, and there are so many companies produce chemical admixtures for...
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