Journal articles on the topic 'Engineering tertiary studies'
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Khan, Muhammad Uzair, Salman Sherin, Muhammad Zohaib Iqbal, and Rubab Zahid. "Landscaping systematic mapping studies in software engineering: A tertiary study." Journal of Systems and Software 149 (March 2019): 396–436. http://dx.doi.org/10.1016/j.jss.2018.12.018.
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Blicblau, Aaron. "Engaging Materials in the K1 to K12 School Environment as the Foundation for Engineering and Technology." Advanced Materials Research 422 (December 2011): 716–21. http://dx.doi.org/10.4028/www.scientific.net/amr.422.716.
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There is a need to re-vitalize science and technology education to suit today’s world. The specific aim for this study is to determine how school science in early years of schooling impacts on years 11 and 12 science studies in the areas of materials science, and subsequent further tertiary studies. Public education records were investigated to obtain post hoc enrolment data to establish trends and decline in enrolments in physics and chemistry in the final years of high school which revealed a trend in enrolments falling over a ten year period. The student population in science of physics and chemistry were not well prepared for future studies and are a challenge for students undertaking engineering and technology studies at a tertiary level. It is proposed that primary and high school science subjects be made more popular by integrating popular aspects of materials in everyday life, so making science an appealing part of the syllabus. Initiating these syllabus changes will enhance the way science subjects are taught to encourage studies into engineering.
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Odigi, M. I. "THE AKAM OILFIELD, NIGER DELTA: GEOCHEMICAL STUDIES OF TERTIARY SHALES." Journal of Petroleum Geology 13, no. 4 (October 1990): 463–74. http://dx.doi.org/10.1111/j.1747-5457.1990.tb00859.x.
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Ksenofontov, B. S. "Engineering problems of dehydration of rainfall of sewage." Ecology and Industry of Russia 22, no. 9 (September 21, 2018): 4–7. http://dx.doi.org/10.18412/1816-0395-2018-9-4-7.
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The engineering problems of processing of rainfall in devices of new type – flotokombayna are considered. Pilot studies of process of condensation of suspension of active silt after secondary settlers in flotokombayna are conducted. Further dehydration is possible with use of the offered scheme of drying with the closed heat carrier contour. The scheme includes knot of preparation of the heat carrier, the drying camera, the device for unloading of a ready-made product, the system of cleaning of the fulfilled drying agent, knot of tertiary treatment of the fulfilled heat carrier, the double-circuit system of pneumotransport of a ready-made product. The offered scheme excludes hit of toxic substances of slimes to the environment.
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Higgins, Alyssa D., Richard J. Dunn, Omer Malikzai, Mirwais Ahmadzai, Jerad M. Gardner, Benjamin K. Stoff, and Josette R. McMichael. "Kaposi Sarcoma in Afghanistan: A Case Series from a Tertiary Referral Center." Dermatopathology 9, no. 3 (July 15, 2022): 258–70. http://dx.doi.org/10.3390/dermatopathology9030030.
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Kaposi sarcoma is a vascular endothelial neoplasm caused by human herpesvirus 8. Although it is a well-studied disease, little is known about the specific characteristics or epidemiology of Kaposi sarcoma in Afghanistan. The data consist primarily of anecdotal reports and epidemiological studies extrapolated from neighboring countries. In this case series, we summarize existing data about Kaposi sarcoma in Afghanistan and present seven histologically confirmed cases with associated clinical features to shed light on the characteristics of Kaposi sarcoma in this unique geographic setting.
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Liu, Xue Gui, Chang Feng Liu, Hong Shao, and En De Wang. "Studies on a New Type of Crosslinked Polyacrylamide Bentonite Composite." Advanced Materials Research 152-153 (October 2010): 666–69. http://dx.doi.org/10.4028/www.scientific.net/amr.152-153.666.
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In this paper, a peroxide-tertiary amine oxidation-reduction initiator system was used to synthesize a cross-linked polyacrylamide/bentonite composite at room temperature. The composite could contain up to 50% bentonite. Performance studies showed that the salt tolerance of the composite was enhanced compared to bentonite. The structure of the composite was characterized and analyzed by XRD, FTIR, and TG. Other than a slight increase in the interlamellar spacing, the structure of bentonite did not change during its aggregation. The composite therefore had enhanced dispersion properties and improved thermal stability.
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Chingara, Remigio, Etwin Machibaya, and Alice Magwani. "ENGINEERING CURRICULUM CHANGES IN HIGHER AND TERTIARY EDUCATION: A CASE OF ONE POLYTECHNIC COLLEGE IN ZIMBABWE." International Journal of Research -GRANTHAALAYAH 10, no. 7 (August 15, 2022): 124–35. http://dx.doi.org/10.29121/granthaalayah.v10.i7.2022.4669.
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Whist there are abundant studies on the challenges of implementing curricular changes in schools, less information apparently appears to be available on the challenges of implementing the same in engineering at polytechnic colleges in Zimbabwe. To bridge this gap in knowledge, this study sought to analyse the challenges emanating from implementing curriculum changes in engineering at one polytechnic college in Zimbabwe. The aim was to determine how these challenges effected teaching and learning of engineering courses as well as suggesting strategies to enhance the same. The population in this study comprised of all the 107 lecturers in the department of engineering at Harare Polytechnic in Zimbabwe. The study employed the quantitative research methodology and adopted a descriptive survey design. It utilised stratified sampling to select a sample of 74 lecturers from the engineering department. The study utilised a questionnaire with both open-ended and closed-ended questions to gather data. The study revealed that the addition of non-core subjects in the engineering curriculum added more work to the detriment of the core subjects. Lack of lecturer consultation, resources and staff development were among the challenges cited as affecting the effectiveness of teaching and learning of the new engineering curriculum. The study recommends that there be stakeholder engagement and an evaluation of the impact of the intended engineering curriculum changes before their implementation to mitigate against the negative effects of such changes.
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Laciok, Vendula, Katerina Sikorova, Bruno Fabiano, and Ales Bernatik. "Trends and Opportunities of Tertiary Education in Safety Engineering Moving towards Safety 4.0." Sustainability 13, no. 2 (January 7, 2021): 524. http://dx.doi.org/10.3390/su13020524.
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Industry and related work and workplaces are constantly changing as a result of the implementation of new technologies, substances and work processes, changes in the composition of the workforce and the labor market, and new forms of employment and work organization. The implementation of new technologies represents certain ambivalence. Next to the positive impact on workers’ health, new risks and challenges can arise in the area of process and occupational safety and health of people at work. On these bases, it follows the need for predicting and handling the new risks, in order to ensure safe and healthy workplaces in the future. The aim of most forecasting studies is not only to identify new emerging risks, but also to foresee changes that could affect occupational safety and health. However, a number of questions still require proper investigation, i.e., “What impact do new emerging risks have on tertiary education in the area of Safety engineering? Has tertiary education already reacted to progress in science and research and does it have these innovations in its syllabus? How are tertiary graduates prepared for the real world of new technologies?” This paper represents a first attempt in the literature to provide answers to the raised questions, by a survey approach involving academics, Health Safety and Environment (HSE) industrial experts and university students in the Czech Republic. Even if statistical evaluation is limited to a single Country and to a small sample size, the obtained results allow suggesting practical recommendations that can contribute to ensuring new challenges in the area of education by addressing relevant culture issues needed to support new workplace realities according to the newly defined Safety 4.0.
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Laciok, Vendula, Katerina Sikorova, Bruno Fabiano, and Ales Bernatik. "Trends and Opportunities of Tertiary Education in Safety Engineering Moving towards Safety 4.0." Sustainability 13, no. 2 (January 7, 2021): 524. http://dx.doi.org/10.3390/su13020524.
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Industry and related work and workplaces are constantly changing as a result of the implementation of new technologies, substances and work processes, changes in the composition of the workforce and the labor market, and new forms of employment and work organization. The implementation of new technologies represents certain ambivalence. Next to the positive impact on workers’ health, new risks and challenges can arise in the area of process and occupational safety and health of people at work. On these bases, it follows the need for predicting and handling the new risks, in order to ensure safe and healthy workplaces in the future. The aim of most forecasting studies is not only to identify new emerging risks, but also to foresee changes that could affect occupational safety and health. However, a number of questions still require proper investigation, i.e., “What impact do new emerging risks have on tertiary education in the area of Safety engineering? Has tertiary education already reacted to progress in science and research and does it have these innovations in its syllabus? How are tertiary graduates prepared for the real world of new technologies?” This paper represents a first attempt in the literature to provide answers to the raised questions, by a survey approach involving academics, Health Safety and Environment (HSE) industrial experts and university students in the Czech Republic. Even if statistical evaluation is limited to a single Country and to a small sample size, the obtained results allow suggesting practical recommendations that can contribute to ensuring new challenges in the area of education by addressing relevant culture issues needed to support new workplace realities according to the newly defined Safety 4.0.
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Eadie, Robert, and Phillip Millar. "Student Induction: A Critical Appraisal of Civil Engineering Undergraduates’ Perceptions of the Transition to Tertiary Education." Transactions 8, no. 1 (August 2011): 60–73. http://dx.doi.org/10.11120/tran.2011.08010060.
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Salmi, Pauliina, Kalle Ryymin, Anna K. Karjalainen, Anna Mikola, Emilia Uurasjärvi, and Julia Talvitie. "Particle balance and return loops for microplastics in a tertiary-level wastewater treatment plant." Water Science and Technology 84, no. 1 (May 31, 2021): 89–100. http://dx.doi.org/10.2166/wst.2021.209.
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Abstract Microplastics (MPs) from households, stormwater, and various industries are transported to wastewater treatment plants (WWTPs), where a high proportion of them are captured before discharging their residuals to watersheds. Although recent studies have indicated that the removed MPs are mainly retained in wastewater sludge, sludge treatment processes have gained less attention in MP research than water streams at primary, secondary, and tertiary treatments. In this study, we sampled 12 different process steps in a tertiary-level municipal WWTP in central Finland. Our results showed that, compared to the plant influent load, three times more MPs circulated via reject water from the sludge centrifugation back to the beginning of the treatment process. Fibrous MPs were especially abundant in the dewatered sludge, whereas fragment-like MPs were observed in an aqueous stream. We concluded that, compared to the tertiary effluent, sludge treatment is the major exit route for MPs into the environment, but sludge treatment is also a return loop to the beginning of the process. Our sampling campaign also demonstrated that WWTPs with varying hydraulic conditions (such as the one studied here) benefit from disc filter-based tertiary treatments in MP removal.
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Rawlings, G. E. "Active slide in Tertiary bentonitic claystones, Upper Hat Creek, British Columbia." Canadian Geotechnical Journal 23, no. 2 (May 1, 1986): 164–73. http://dx.doi.org/10.1139/t86-026.
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Potential exploitation of the 500 m thick coal deposit at Upper Hat Creek, British Columbia, required detailed investigation of the sequence of Tertiary tuffaceous rocks surrounding the coal and the overlying surficial materials. Studies have shown that extensive bentonitic slide deposits partially cover the coal body on the west side of Hat Creek valley; part of this area is currently active. A translational debris slide of approximately 17 × 106 m3 volume and 2 km length is moving across the northwest boundary of the proposed pit into the valley bottom.Detailed field investigations complemented by laboratory testing have defined the basal plane of sliding and permitted a back-analysis to be made. From measured piezometric pressures, the mobilized shear strength on the failure plane is calculated to be [Formula: see text], cr′ = 0, which is largely in accord with laboratory test results.Slope stability in thick montmorillonite-rich claystones/siltstones is known to present difficulties, as evidenced by the Panama Canal excavations. Consideration is given to the engineering significance of bentonitic slides and preventive measures that might be adopted in their control. Key words: active slide, Tertiary, claystone, montmorillonite, open pit, coal, monitoring, residual strength, piezometric pressures.
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Chua, Lloyd H. C., Melvin C. M. Leong, Edmond Y. M. Lo, Martin Reinhard, Alexander P. Robertson, T. T. Lim, E. B. Shuy, and S. K. Tan. "Controlled field studies on soil aquifer treatment in a constructed coastal sandfill." Water Science and Technology 60, no. 5 (May 1, 2009): 1283–93. http://dx.doi.org/10.2166/wst.2009.408.
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A controlled artificial recharge experiment was conducted to investigate the effect of soil aquifer treatment during percolation of secondary and tertiary (ultrafiltered) treated wastewater through the shallow vadoze zone of a newly constructed coastal sandfill. The sandfill is a reclaimed land constructed from marine sand dredged from the seabed. To obtain 1-D flow, a stainless steel column was driven to a depth of 2.5 m, penetrating the phreatic surface. Wastewater was percolated through the column under fully-saturated and unsaturated conditions. Infiltration rates, dissolved organic carbon (DOC) and ultra-violet absorption (UVA) were monitored. The wastewaters were recharged at similar infiltration rates of approximately 5.5 m/day and 3.5 m/day under fully-saturated and unsaturated conditions, respectively. In both cases, clogging occurred 40 days after the start of recharge, under saturated conditions. For secondary treated wastewater, DOC concentration (mg/l) reduced by 28% and 13% under unsaturated and saturated conditions, respectively. The corresponding UVA reduction was 19.4% and 14.1%. Similar reductions in DOC were observed for the tertiary treated wastewater; however, the reduction in UVA was higher; 28% and 22% under unsaturated and saturated conditions, respectively. On an mass removal (mg/m2 DOC) basis, DOC reduction appeared to be more significant under unsaturated conditions. This is attributed to the presence of interstitial oxygen.
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Thomas, Meetu, and Mali Senapathi. "Agile Requirements Engineering: An Empirical Analysis and Evidence from a Tertiary Education Context." Issues in Informing Science and Information Technology 16 (2019): 097–112. http://dx.doi.org/10.28945/4286.
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Aim/Purpose: The study describes empirical research into agile Requirements Engineering (RE) practices based on an analysis of data collected in a large higher education organization. Background: Requirements Engineering (RE) in agile development contexts is considerably different than in traditional software development. The field of agile RE is still nascent where there is a need to evaluate its impact in real-world settings. Methodology: Using a case study methodology, the study involved interviewing nine experienced software practitioners who reflected on the use and implementation of various agile RE practices in two software development projects of a student management system. Contribution: The primary contribution of the paper is the evaluation of agile RE practices in a large tertiary educational organization. Based on the analysis of the data, it provides valuable insights into the practice of agile RE in a specific context (i.e., education), but just as importantly, the ones that were omitted or replaced with others and why. Findings: While the evolutionary and iterative approach to defining requirements was followed in general, not all agile practices could be fully adhered to in the case organization. Although face-to-face communication with the customers has been recognized as one the most important agile RE practices, it was one of the most difficult practices to achieve with a large and diverse customer base. Addressing people issues (e.g., resistance to change, thinking, and mindset) was found to be a key driver to following the iterative RE process effectively. Contrary to the value-based approach advocated in the literature, the value-based approach was not strictly adhered to in requirements prioritization. Continuous integration was perceived to be a more beneficial practice than prototyping, as it allows frequent integration of code and facilitates delivering working software when necessary. Recommendations for Practitioners: Our study has important implications for practitioners. Based on our empirical analysis, we provide specific recommendations for effective implementation of agile RE practices. For example, our findings suggest that practitioners could address the challenges associated with limited face-to-face communication challenges by producing flexible, accessible, and electronic documentation to enable communication. Recommendations for Researchers: Researchers can use the identified agile RE practices and their variants to per-form in-depth investigations into agile requirements engineering in other educational contexts. Impact on Society: There are a number of new technologies that offer exciting new opportunities that can be explored to maximize the benefits of agile and other requirements techniques. Future Research: Future research could conduct case studies in different contexts and thus con-tribute to developing bundles or collections of practices to improve software development processes in specific contexts.
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Geissler, Paul E. "Seismic reflection profiling for groundwater studies in Victoria, Australia." GEOPHYSICS 54, no. 1 (January 1989): 31–37. http://dx.doi.org/10.1190/1.1442574.
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Experimental seismic reflection profiling was employed for groundwater studies in southeastern Australia. Equipment consisted of a simple engineering seismograph and tape recorder, and data reduction was carried out on a minicomputer using a graphics‐based processing system specifically written for the project. The investigation area is the site of a proposed induced groundwater recharge scheme in which surface water would be diverted to infiltrate aquifers outcropping several kilometers from a bore field which supplies up to half of the drinking water for the city of Geelong. The unconsolidated Tertiary aquifers of the region are known to be interrupted in places by steep normal and reverse faults. Since similar faulting had been inferred along the proposed recharge avenue, the objective of the seismic study was to verify, if possible, the assumption of aquifer continuity along the survey line. The reflection results reveal monoclinal folding in the upper unconsolidated sediments produced by recent movement on bedrock faults. The seismic study confirms that the aquifers are continuous between the proposed recharge and extraction areas despite structural complexity along the recharge avenue.
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Jain, Pankaj Kumar, Kamalesh Katara, and S. Jelia. "An Epidemiological Study of Acute Poisoning In a Tertiary Care Centre." PERSPECTIVES IN MEDICAL RESEARCH 9, no. 2 (October 15, 2021): 34–37. http://dx.doi.org/10.47799/pimr.0902.08.
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Introduction: Acute poisoning represents a real health threat in the world. It is a common cause of admission to emergency department and in intensive care unit. Periodic clinical and epidemiological studies are required to understand the pattern of poisoning. This study aims to analyze epidemiological aspect, clinical profile, and outcome of acute poisoning in a tertiary care hospital. Material and Methods: A cross sectional study was conducted at Government Medical College Hospital, Kota, Rajasthan. 102 admitted patients were taken for study from January 2020 to August 2020. Epidemiological variables age, sex, type of poison, mode of exposure, clinical presentation and outcome were studied. Results: The median age was 30.23 years with a male predominance (54.9%). The circumstances of poisoning were suicidal, accidental and unknown in 88.2%, 9.8%, and 1.96% respectively. Ingestion was the major route of exposure (98%) followed by inhalation (1.96%). The majority 33(32.4%) of cases were of Organophosphorus poisoning followed by 17(16.7%) cases of Rodenticide poisoning. The main symptoms were nausea and vomiting in 90(88.2%) cases. Convulsions were noted in 3(2.9%) patients. Gastric lavage was done for 92(90.19%). 8 patients (7.84%) were needed mechanical ventilation. 7 patients (6.86%) were needed vasoactive drugs. The rate of mortality was 8.82%. The aluminium phosphide poisoning was responsible for 44.4% deaths. Conclusion: Study revealed the high mortality associated with acute poisoning. Appropriate approach towards poisoning at tertiary care center and prevention remains the best strategy for reducing morbidity and mortality.
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Atkinson, Christopher, Michael Renolds, and Oskar Hutapea. "Stratigraphic traps in the Tertiary rift basins of Indonesia: case studies and future potential." Geological Society, London, Special Publications 254, no. 1 (2006): 105–26. http://dx.doi.org/10.1144/gsl.sp.2006.254.01.06.
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Tóth, Norbert. "CHARACTERSITICS OF ROMA UNIVERSITY STUDENTS BASED ON SAMPLES FROM ROMA COLLEGES FOR ADVANCED STUDIES." Különleges Bánásmód - Interdiszciplináris folyóirat 8, no. 4 (December 27, 2022): 43–59. http://dx.doi.org/10.18458/kb.2022.4.53.
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The study intends to present in a comparative manner the research conducted at the University of Pécs and the Eszterházy Károly Catholic University, which focuses on the family background, identity, school-related successes and failures of Roma students studying in tertiary education. The research was supplemented with information collected from the students of the Lippai Balázs Roma College for Advanced Studies at the University of Debrecen Faculty of Education for Children and Special Educational Needs.
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Abu-Lail, Laila, John A. Bergendahl, and Robert W. Thompson. "Adsorption of methyl tertiary butyl ether on granular zeolites: Batch and column studies." Journal of Hazardous Materials 178, no. 1-3 (June 2010): 363–69. http://dx.doi.org/10.1016/j.jhazmat.2010.01.088.
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Crump, Barbara J. "THE NEW ARRIVAL MINORITY: PERCEPTIONS OF THEIR FIRST-YEAR TERTIARY PROGRAMMING LEARNING ENVIRONMENT." Journal of Women and Minorities in Science and Engineering 10, no. 1 (2004): 21–36. http://dx.doi.org/10.1615/jwomenminorscieneng.v10.i1.20.
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Zimcik, Petr, Miroslav Miletin, Zbynek Musil, Kamil Kopecky, Lukas Kubza, and Daniel Brault. "Cationic azaphthalocyanines bearing aliphatic tertiary amino substituents—Synthesis, singlet oxygen production and spectroscopic studies." Journal of Photochemistry and Photobiology A: Chemistry 183, no. 1-2 (September 2006): 59–69. http://dx.doi.org/10.1016/j.jphotochem.2006.02.022.
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Kollanur, Janso, Ronica Pulikal, Ajay R, Davis Paul Chelangara, and Krishnakumar EV. "Outcomes of community acquired pneumonia in a tertiary hospital." IP Indian Journal of Immunology and Respiratory Medicine 7, no. 3 (October 15, 2022): 138–42. http://dx.doi.org/10.18231/j.ijirm.2022.030.
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Despite the advances in healthcare setup, Community Acquired pneumonia still continues to be one of the major causes of morbidity and mortality among the hospitalised, especially the elderly population. Knowledge about the distribution of the disease, susceptible population, risk factors, mortality and morbidity outcomes makes it easy for the effective management of the affected individuals. Even though we have enough data on worldwide distribution and outcome of CAP, similar studies in Indian setup are few. Considering the fact that the change in environment, population characteristics and difference in clinical practices can hugely influence the outcome of CAP, it was found necessary to conduct this study.: To understand the demographic profile of patients, to identify the main symptoms and risk factors and to find out the outcome of patients admitted with CAP in a tertiary health care centre in Thrissur. Retrospective study by collecting the details of patients hospitalized with CAP in the past one year by going through their medical records. The incidence of CAP was found to be steadily increasing with age, more in males with productive cough being the most common symptom. While in majority of cases no organisms were isolated, the ones which had an identified causative organism were mainly bacterial. Maximum cases occurred in monsoon season and the mortality rate was 2%.
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Choudhary, Abdul Hakim, Manisha K. Palaskar, Mohammad Kausar, Mahesh R., and D. K. Sharma. "Resource optimization through process re-engineering of inhalational therapy unit at a tertiary care public hospital." International Journal of Research in Medical Sciences 7, no. 12 (November 27, 2019): 4469. http://dx.doi.org/10.18203/2320-6012.ijrms20195502.
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Background: Salaries, supplies and machinery account for bulk of public funding necessitating efficient utilisation. Studies suggest that process re-engineering helps improve cost, quality, service, and speed. Disbanded once and re-commissioned, a centralized Inhalational Therapy Unit (ITU) banked and provided portable mechanical ventilators to the inpatient wards. A demand for new ventilators from ITU led to the present study involving its critical review and cost analysis.Methods: An interventional study was conducted at a large tertiary care public hospital in India from April 2015 to June 2015. Critical review of process of providing portable ventilators and cost analysis were conducted. Review of records of and interview with ITU personnel and nursing staff were carried out. Fundamental rethinking and radical redesign of the process was done with attention to human resource, costs, space and actual medical equipment utilization. Two fundamental questions of process re-engineering were deliberated upon: “Why do we do what we do?” “And why do we do it the way we do?” Fundamental rethinking for new process was organized around the outcome.Results: Average utilization coefficient was 6.2% (3.3% to 12.1%). Ventilators utilized per day were 1.43. Expenditure on salaries was INR 315000 per month and INR 10500 per day. Low utilization offered low value for expenses incurred. All activities in ITU focused on “provision of ventilators” (outcome) and the old rule was, “If one needed a ventilator one must contact ITU”. Since nurses were using the “outcome” and performed activities of arranging, they were handed-over the ventilators (based on utilisation patterns). ITU was disbanded, human resource and space were re-allocated to various hospital areas (costs tied were done away with) with no adverse effect on hospital functioning.Conclusions: Process re-engineering led to improved healthcare delivery, curtailed delays in hospital processes, optimised costs involved in human resources and medical equipment.
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Chicinaș, Nicoleta. "Implementation of the ROSE Educational Project. Case study: RED ROSE (2019-2022)." Studia Universitatis Babeș-Bolyai Studia Europaea 67, no. 2 (December 30, 2022): 253–74. http://dx.doi.org/10.24193/subbeuropaea.2022.2.11.
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"On April 17, 2015, the Government of Romania and the International Bank for Reconstruction and Development (IBRD) signed the Loan Agreement No 8481-RO on the implementation of the Romania Secondary Education Project (ROSE), in Washington. ROSE is a project financed from a loan of 200 million euros by (BIRD), which contributes to reducing the dropout in secondary and tertiary education and to increasing the rate of passing the baccalaureate exam. We intend, through this article, to evaluate the results of the project from the perspective of one of the sub-projects implemented by the Faculty of European Studies, within the Babeș-Bolyai University, Cluj-Napoca, between 2019 and 2022. Keywords: tertiary education, educational project, ROSE, Babeș-Bolyai University, Faculty of European Studies."
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Rinaldi, Víctor A., Horacio V. Ibarra, Ricardo F. Viguera, and Juan C. Harasimiuk. "Application of seismic tomography for detecting structural faults in a Tertiary Formation." E3S Web of Conferences 92 (2019): 18008. http://dx.doi.org/10.1051/e3sconf/20199218008.
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Seismic refraction technique is an increasingly useful geophysical tool for geotechnical studies in civil engineering work including the mapping of different soil formation of subsoil and detection of the bed rock. Additionally, wave velocity is a key parameter which correlates directly with significant geotechnical parameters of soils and rocks. Today, the evolution of the measurement technique in the field and the data processing allows to obtain tomographic images which increases its potential for applications to evaluate structuration of rock mass. This work describes the basic principles of seismic tomography and a case history of an application in civil works used to detect hidden faults in the sedimentary Gatun formation at the north of Panama. The correlation between the seismic profile and geologic profile obtained from boreholes showed very good agreement. Subsequent directed boreholes performed at the site confirmed the position and nature of the faults detected.
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Ghosh, Bisweswar, Liying Sun, and Nithin Chacko Thomas. "Compatibility evaluation of modified seawater for EOR in carbonate reservoirs through the introduction of polyphosphate compound." Petroleum Science 17, no. 2 (October 23, 2019): 393–408. http://dx.doi.org/10.1007/s12182-019-00380-6.
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Abstract Waterflood-assisted oil recovery with sulfate-spiked seawater would cause incompatibility scaling in carbonate reservoirs and reduce economic benefits. This research investigated the benefits of polyphosphate compounds in reducing scaling potential as well as its effect on oil recovery when mixed in high sulfate flood water. Severity of scaling potential of sulfate-spiked water in a carbonate reservoir environment was measured, followed by systematic screening of a polyphosphate compound, which successfully inhibited the sulfate scale precipitation at concentration as low as 100 ppm. The new formulation (seawater with four times sulfate and phosphate, SW4SP) was evaluated and compared with benchmark formulation (modified seawater with four times sulfate, SW4S). Contact angle, ζ-potential and drainage studies show that SW4SP changed the rock wettability from oil wet to water wet to a larger degree compared to SW4S. Improved recovery efficiency of SW4SP was confirmed through a set of core flooding studies in the tertiary and quaternary flood modes. Whereas SW4S recovered 7.7% of original oil in place (OOIP), SW4SP recovered about 8% of OOIP in the tertiary mode under approximately identical flow conditions. Flooding with SW4SP in the quaternary mode following a tertiary flood with SW4S on the same core resulted in 1.7% additional oil recovery, showing improved efficiency of the new flood water formulation.
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Achawal, Shruti, and Ajit Deshpande. "Colposcopic Findings in Patients of Cervical Erosion at Tertiary Center." Scholars Journal of Applied Medical Sciences 10, no. 2 (February 13, 2022): 231–34. http://dx.doi.org/10.36347/sjams.2022.v10i02.015.
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Background: India has a population of approximately 450 million women 18 years of age and older who are at a risk of developing cervical cancer. Recent studies state that nearly every year 122844 women are diagnosed with cervical cancer and approximately 67477 die from cervical cancer. Cervical cancer ranks as the 2nd most frequent cancer among women in India. Cervical erosion is one of the commonest clinical finding in women attending Gynecology outpatient department for various reasons. Cervical erosion which is an abnormality of the cervical epithelium covering ectocervix, has a varied significance. It could be a premalignant or a malignant lesion. Persistent inflammation leads to increased cellular turnover. Cervical cancer can be prevented by detecting precancerous lesions by screening and treating them in time. Inspite of the overall high incidence and mortality rates, cervical cancer is considered as the most preventable and treatable form of major cancer through early diagnosis and appropriate treatment of pre invasive and invasive disease. Early detection of cervical epithelial abnormality is important as it helps to prevent progression to CIN and invasive cancer thereafter. Aim: To study the colposcopic findings in patients of cervical erosion. Material and methods: A prospective observational study was carried out in the time interval from October 2019 to September 2021 at Rural Medical College, Loni. Women diagnosed to have cervical erosion on per speculum examination were enrolled for the study. A total 140 females were studied. Women attending gynecological Outpatient department for various complaints and diagnosed to have cervical erosion on per speculum examination were enrolled in the study. Colposcopy was done using 3% acetic acid and 50% Lugol’s iodine. Colposcopy was done and it was interpreted using the Reid’s Colposcopic Index which is an objective method of colposcopically grading the severity of premalignant cervical lesions. ................
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Zhong, Hui, Zheng Fang, Bao Hua Zou, Xin Li, and Kai Guo. "Studies on the Immobilized-Lipase-Catalyzed Esterification of Alkyl Oleates in Solvent-Free Systems." Advanced Materials Research 645 (January 2013): 19–23. http://dx.doi.org/10.4028/www.scientific.net/amr.645.19.
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The esterification of oleic acid with alkyl alcohols in solv ent-free systems was catalyzed by an immobilized lipase from Candida sp . 99-125. The influence of several factors, including enzyme concentration, temperature, molar ratio between oleic acid and alkyl alcohols, and structure of alcohol was also investigated. The results indicated that the reactions catalyzed by lipase at 20 o C, in the presence of 3% (w/w) lipase, on the molar ratio of 1:1 between oleic acid and alcohols, afforded products in high yield. It showed high selectivity to primary and low selectivity to secondary alcohols and tertiary alcohols because of the sterically hindered effect. Methanol has certain toxicity on the activity of the lipase. The lipase from Candida sp. 99-125 was identified to be an effective catalyst in the esterification of alcohol and oleic acid at low temperature.
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Podsędkowski, Leszek, Agnieszka Kobierska, Małgorzata Sikora, Lukasz Fracczak, Adam Niewola, Marcin Zawierucha, and Paweł Żak. "Teaching in Automatic Control and Robotics Discipline in Terms of Changes in Higher Education System: Experiences and Suggestions." Solid State Phenomena 199 (March 2013): 648–53. http://dx.doi.org/10.4028/www.scientific.net/ssp.199.648.
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This paper is an attempt to outline certain phenomena conditioning tertiary education: mental changes of the youth, legal changes in higher education and changes in demands and profile of the industry. In the paper the experiences of making changes in the studies program of Automatic Control and Robotics discipline at Faculty of Mechanical Engineering of Technical University of Lodz were presented. Particular emphasis has been placed on demonstrating how to use the laboratory background in order to meet the needs of the industry. A proposal showing a better method of implementing the studies program in the new reality has been presented. The authors have also presented their own reflections on the advantages and disadvantages coming from the new system.
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Hainey, Thomas, and Thomas Connolly. "Evaluating Games-Based Learning." International Journal of Virtual and Personal Learning Environments 1, no. 1 (January 2010): 57–71. http://dx.doi.org/10.4018/jvple.2010091705.
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A highly important part of software engineering education is requirements collection and analysis, one of the initial stages of the Software Development Lifecycle. No other conceptual work is as difficult to rectify at a later stage or as damaging to the overall system if performed incorrectly. As software engineering is a field with a reputation for producing graduate engineers who are ill-prepared for real-life software engineering contexts, this paper suggests that traditional educational techniques (e.g. role-play, live-through case studies and paper-based case studies) are insufficient in themselves. In an attempt to address this problem we have developed a games-based learning application to teach requirements collection and analysis at the tertiary education level. One of the main problems with games-based learning is that there is a distinct lack of empirical evidence supporting the approach. This paper will describe the evaluation of the requirements collection and analysis process using a newly developed framework for the evaluation of games-based learning and will focus on evaluation from a pedagogical perspective.
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Novak, J. T., C. D. Goldsmith, R. E. Benoit, and J. H. O'Brien. "Biodegradation of Methanol and Tertiary Butyl Alcohol in Subsurface Systems." Water Science and Technology 17, no. 9 (September 1, 1985): 71–85. http://dx.doi.org/10.2166/wst.1985.0083.
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The purpose of this study was to determine if and at what rate gasoline based alcohols would be degraded in subsurface systems. Soils were obtained from three sites in the USA for microcosms studies. Methanol was found to degrade at all sites up to a concentration of 1000 mg/L such that contamination would be reduced to non-measurable levels in one year or less. Tertiary butyl alcohol (TBA) was more refractory but was biodegraded at all sites. For sites where anaerobic conditions prevailed, degradation rates varied directly with the TBA concentration. The data suggests that methanol contamination problems in groundwater should be minimal because of its susceptibility to biodegradation. TBA may be more persistent but should also degrade.
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Singhal, Shweta, Nishtha Jatana, Bharti Suri, Sanjay Misra, and Luis Fernandez-Sanz. "Systematic Literature Review on Test Case Selection and Prioritization: A Tertiary Study." Applied Sciences 11, no. 24 (December 20, 2021): 12121. http://dx.doi.org/10.3390/app112412121.
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Software testing is undertaken to ensure that the software meets the expected requirements. The intention is to find bugs, errors, or defects in the developed software so that they can be fixed before deployment. Testing of the software is needed even after it is deployed. Regression testing is an inevitable part of software development, and must be accomplished in the maintenance phase of software development to ensure software reliability. The existing literature presents a large amount of relevant knowledge about the types of techniques and approaches used in regression test case selection and prioritization (TCS&P), comparisons of techniques used in TCS&P, and the data used. Numerous secondary studies (surveys or reviews) have been conducted in the area of TCS&P. This study aimed to provide a comprehensive examination of the analysis of the enhancements in TCS&P using a thorough systematic literature review (SLR) of the existing secondary studies. This SLR provides: (1) a collection of all the valuable secondary studies (and their qualitative analysis); (2) a thorough analysis of the publications and the trends of the secondary studies; (3) a classification of the various approaches used in the secondary studies; (4) insight into the specializations and range of years covered in the secondary texts; (5) a comprehensive list of statistical tests and tools used in the area; (6) insight into the quality of the secondary studies based on the seven selected Research Paper Quality parameters; (7) the common problems and challenges encountered by researchers; (8) common gaps and limitations of the studies; and (9) the probable prospects for research in the field of TCS&P.
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Bate, K. J., and F. G. Christiansen. "The drilling of stratigraphic borehole Umiivik-1, Svartenhuk Halvø, West Greenland." Bulletin Grønlands Geologiske Undersøgelse 172 (January 1, 1996): 22–27. http://dx.doi.org/10.34194/bullggu.v172.6738.
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Svartenhuk Halvø is one of the few areas onshore West Greenland where Upper Cretaceous and Lower Tertiary marine sediments are exposed (Fig. 1). Geological studies in the area have been made intermittently since the late 1930s but have intensified since 1990 as part of the Survey's overall effort to assess the petroleum potential of the Disko - Nuussuaq - Svartenhuk Halvø area and adjacent offshore basins.
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Fuchs, Christian, Mark Edgar, Mark R. J. Elsegood, and George W. Weaver. "Studies on the double alkylation of 2,2-disubstituted-1,3-dithiacycloalkane-S-oxides: synthesis of tertiary thiol derivatives." RSC Advances 3, no. 44 (2013): 21911. http://dx.doi.org/10.1039/c3ra43688h.
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Wichanpricha, Thitirat. "Synchronous Online Learning through Microsoft Teams at Tertiary Level: Academic English Course." Journal of Educational and Social Research 11, no. 5 (September 5, 2021): 123. http://dx.doi.org/10.36941/jesr-2021-0111.
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As for a recent learning platform as synchronous online learning through Microsoft Teams (MS Teams) in Academic English course based on particular three learning domains, very few previous studies were conducted and explored in Thailand and Asia. Due to the unending epidemic of COVID-19, the pedagogy in EFL context at every level of educational institutes has to be shifted to an online approach that has never been implemented in Rajamangala University of Technology Lanna Tak (RMUTL Tak), Thailand. The current study has mainly addressed the research gap by determining underlying cognitive, affective, and behavioral aspects in synchronous online learning. Therefore, this paper aimed to investigate perceptions and difficulties of synchronous learning in Academic English course through MS Teams. Academic English skills are not only acquired during the early years of Thai educational system but also at tertiary level. RMUTL Tak has currently provided an Academic English course as a mandatory subject that every undergraduate student has to pass this course before graduation. Promoting synchronous learning to Academic English course allows students have greater learning motivation. In the study, two hundred and fifty four undergraduate students studied in three faculties comprising Business Administration and Liberal Arts, Engineering, and Sciences and Agricultural Technology at RMUTL Tak. They were all enrolling in an Academic English course in the first semester, academic year 2020. Additionally, an online questionnaire including twenty one items and one open-ended question was employed in the study. All obtained data was analyzed quantitatively and qualitatively. The findings revealed that most of the participants have positively perceived synchronous learning as their fruitful online platform. Nonetheless, it was found that poor internet signal was considered as a dominant factor preventing them from learning online. Received: 8 March 2021 / Accepted: 2 August 2021 / Published: 5 September 2021
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Abdallah, Y. A. G., and J. E. R. Coney. "Adiabatic and Diabatic Flow Studies by Shear Stress Measurements in Annuli With Inner Cylinder Rotation." Journal of Fluids Engineering 110, no. 4 (December 1, 1988): 399–405. http://dx.doi.org/10.1115/1.3243570.
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The shear stress, occurring at the outer surface of a vertical annular gap formed by a stationary outer cylinder and a rotatable inner cylinder, was measured for a wide range of conditions, using a flush mounted probe. For annular gaps of radius ratio 0.8 and 0.9, axial flows of Reynolds numbers 100, 165, 200, and 300 were imposed under adiabatic and diabatic upflow and also diabatic downflow conditions. Under these conditions, the shear stress was determined over a range of Taylor numbers approaching 107, the flow being fully developed. Diabatic conditions were achieved by the isothermal heating of the outer surface of the gap. A primary regime, in which Taylor vortices are absent or exist away from the outer surface of the gap was identified. Secondary, tertiary and quaternary regimes, in which the vortex flow is in contact with that surface ensued. The contrast between the results for diabatic upflow and diabatic downflow gives an understanding of the effect of natural convection in these regimes.
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Chen, Yuan, Qiushi Ding, and Yinghua Shen. "Assessing Accessibility and Social Equity of Tertiary Hospitals for Older Adults: A City-Wide Study of Tianjin, China." Buildings 12, no. 12 (December 1, 2022): 2107. http://dx.doi.org/10.3390/buildings12122107.
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Building age-friendly cities with good accessibility and social equity can help improve older adults’ well-being and quality of life. However, current accessibility analysis of service facilities tends to target most general users, while few studies have been conducted regarding hospitals from an age-friendly perspective. This study aims to measure accessibility to tertiary hospitals and conduct its equity analysis for older adults aged 65 years or over. First, the gravity-based model and geographic information system are utilized to measure accessibility to tertiary hospitals within regions and across regions, and the overall accessibility of a region. Second, coefficient of variation and global Moran’s I are adopted to investigate differences in accessibility to tertiary hospitals by type among regions. Third, Lorenz curves and Gini coefficients are employed to analyze social equity of access to medical services for the elderly. Taking Tianjin, China as the case study, the results show that there exist spatial clusters in terms of accessibility to tertiary hospitals within districts, across districts, and of the whole district. Most districts in the city center have better access to these hospitals than the peripheral and suburban districts. The social equity of accessibility to tertiary hospitals is slightly better in the senior population than in the total population. This study can help the governments improve the spatial distribution and allocation of urban health care resources in a more equitable manner and promote the development of age-friendly cities in future.
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Joarder, Md Shafikuzzaman, Wardatul Akmam, Mohammad Kais Shaikh, and Md Nazmul Hoque. "Quality of Services in the Secondary Educational Organizations of Bangladesh: An Evaluation by Secondary Graduates." Indonesian Journal of Innovation and Applied Sciences (IJIAS) 2, no. 3 (October 7, 2022): 193–203. http://dx.doi.org/10.47540/ijias.v2i3.595.
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Despite the burgeoning quantitative progress in tertiary and pre-tertiary levels, popular discourses render a growing concern that the quality of education has deteriorated over the years in Bangladesh. In identifying problems of the educational system in Bangladesh, a majority of previous macro-level studies adopted the approaches of policy-makers, NGOs, international organizations, and other intervening authorities. This study, in distinction, tries to explore the issue from a micro-perspective – students’ views regarding the quality of educational services they received in colleges and high schools, which makes it unique. Using a cross-sectional survey research design, data were collected from 114 first-year students from the University of Rajshahi, Bangladesh. Findings show that regardless of having good teachers, classrooms, and other facilities, students were heavily dependent on private tuition at the pre-tertiary education level. The services and facilities offered by the colleges of the respondents were of better quality than that of their high schools. Schools/colleges in district towns/divisional cities offer better quality services/facilities than those located at the union/village level. Respondents’ SSC result was significantly associated with the locality and quality of classrooms whereas HSC result was significantly affected by computer and internet facilities as well as the overall quality of services/facilities they enjoyed in their colleges.
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Wang, Feng Yun, Bing Hua Chen, and Jin Ru Fan. "On the Relationship between Economic Growth and Energy Consumption in Beijing." Advanced Materials Research 962-965 (June 2014): 2165–69. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.2165.
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This paper studies the causal relationship between energy consumption and economic growth in Beijing by using econometric method from 1980 to 2012, and then establishes the model between the energy consumption of three industries and economic growth to study the influence of the secondary industry and tertiary industry energy consumption on economic growth in Beijing. Finally, we put forward counter measures and suggestions on sustainable development of Beijing's economy and energy industry.
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Subramaniyan, Sindu K., and Malathi Thagaraj. "Pregnant women with COVID-19: a study in tertiary care centre." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 11, no. 12 (November 25, 2022): 3396. http://dx.doi.org/10.18203/2320-1770.ijrcog20223139.
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COVID-19 had become a pandemic since December 2019. Although the infection rate affecting the pregnant women is less when compared to general population, the data on the effect of coronavirus in pregnancy are limited to a few case studies This was a case series conducted at KIMS Hospital, Bengaluru for a period of 1 year from November 2020 to November 2021. All the pregnant women irrespective of the gestational age admitted at KIMS hospital with COVID-19 reverse transcriptase polymerase chain reaction (RTPCR) positive and gave the consent were included in our study. In our study, out of 480 pregnant women 13 cases were COVID-19 positive. Out of the 13 positive patients, 4 delivered vaginally and 6 of them underwent lower segment caesarean section (LSCS) in view of obstetric indications. 3 cases (23%) were lost to follow up. 9 (90%) of neonates were negative for COVID 19. The results of our study concluded that COVID-19 positivity rate is 2.7% among the admitted patients. There is a risk of adverse pregnancy outcome in severe COVID-19 infections. The limitation of our study was that number of infected pregnant women was less to study the pregnancy outcome. Further studies with larger sample size will be required to study the pregnancy outcome.
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Wall, D. P., and M. Nagata. "Three-dimensional exact coherent states in rotating channel flow." Journal of Fluid Mechanics 727 (June 28, 2013): 533–81. http://dx.doi.org/10.1017/jfm.2013.242.
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AbstractThree-dimensional exact, finite-amplitude solutions are presented for the problem of channel flow subject to a system rotation about a spanwise axis. The solutions are of travelling wave form, and may bifurcate as tertiary flows from the two-dimensional streamwise-independent secondary flow, or as secondary flows directly from the basic flow. For the tertiary flows, we consider solutions of spanwise superharmonic and subharmonic type. We distinguish flows on the basis of symmetry, originating eigenmode and major solution branch, and thus identify 15 distinct flows: 5 superharmonic tertiary, 5 subharmonic tertiary and 5 secondary flows. The tertiary flows all feature a single layer of vortical structures in the spanwise–wall-normal plane, the secondary flows feature single-, double-, triple- or quadruple-layer flow structures in this plane. All flows feature low-speed streamwise-orientated streaks in the streamwise velocity component and/or pulses of low-speed streamwise velocity. The streaks may be sinusoidal or varicose. Sinusoidal streaks are flanked by staggered streamwise vortices, varicose streaks and pulses are flanked by aligned vortices. A comparison with previous simulation and experimental studies finds that the simplest three-dimensional flows observed previously correspond to superharmonic tertiary flows bifurcating from the upper branch of the secondary flow. The mean absolute vorticity of the present flows is also considered. A flattening of the profile of this vorticity is observed in the central region of the channel for two-dimensional secondary and many of the three-dimensional flows, with two-step profiles also observed. This phenomenon is attributed to mixing of the vorticity across zones of the channel in which streamwise vortex structures exist, and is demonstrated by a two-dimensional model. The phenomenon appears to be distinct to that observed in fully turbulent rotating channel flows.
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Kittle, Joshua, Benjamin Fisher, Courtney Kunselman, Aimee Morey, and Andrea Abel. "Vapor Selectivity of a Natural Photonic Crystal to Binary and Tertiary Mixtures Containing Chemical Warfare Agent Simulants." Sensors 20, no. 1 (December 25, 2019): 157. http://dx.doi.org/10.3390/s20010157.
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Vapor sensing via light reflected from photonic crystals has been increasingly studied as a means to rapidly identify analytes, though few studies have characterized vapor mixtures or chemical warfare agent simulants via this technique. In this work, light reflected from the natural photonic crystals found within the wing scales of the Morpho didius butterfly was analyzed after exposure to binary and tertiary mixtures containing dimethyl methylphosphonate, a nerve agent simulant, and dichloropentane, a mustard gas simulant. Distinguishable spectra were generated with concentrations tested as low as 30 ppm and 60 ppm for dimethyl methylphosphonate and dichloropentane, respectively. Individual vapors, as well as mixtures, yielded unique responses over a range of concentrations, though the response of binary and tertiary mixtures was not always found to be additive. Thus, while selective and sensitive to vapor mixtures containing chemical warfare agent simulants, this technique presents challenges to identifying these simulants at a sensitivity level appropriate for their toxicity.
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Whittaker, R. C. "A preliminary seismic interpretation of an area with extensive Tertiary basalts offshore central West Greenland." Bulletin Grønlands Geologiske Undersøgelse 172 (January 1, 1996): 28–31. http://dx.doi.org/10.34194/bullggu.v172.6739.
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A seismic and geological interpretation of the area between latitudes 67°30'N and 73°N offshore West Greenland, was completed in 1995 and has been published as an Open File Series report (Whittaker, 1995). The area is characterised by extensive Early Tertiary basalts which are the seaward extension of the plateau basalts exposed in the Disko - Nuussuaq - Svartenhuk Halvø area onshore (Clarke & Pedersen, 1976). These basalts present special problems in the processing and interpretation of seismic data. The interpretation incorporates all the seismic data acquired prior to the 1995 field season, inc1uding those lines acquired during the first phase of exploration in the 1970s. Ties to two of the exploration wells drilled offshore southem West Greenland have led to a greater understanding of the timing and kinematics of teetonie events during the Tertiary period; such events are not recorded in the onshore area. The area is considered to have significant exploration potential and warrants additional studies to determine the thickness of the basalt formation in the area.
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Shehata, A. M. M., M. B. B. Alotaibi, and H. A. A. Nasr-El-Din. "Waterflooding in Carbonate Reservoirs: Does the Salinity Matter?" SPE Reservoir Evaluation & Engineering 17, no. 03 (July 14, 2014): 304–13. http://dx.doi.org/10.2118/170254-pa.
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Summary Waterflooding has been used for decades as a secondary oil-recovery mode to support oil-reservoir pressure and to drive oil into producing wells. Recently, the tuning of the salinity of the injected water in sandstone reservoirs was used to enhance oil recovery at different injection modes. Several possible low-salinity-waterflooding mechanisms in sandstone formations were studied. Also, modified seawater was tested in chalk reservoirs as a tertiary recovery mode and consequently reduced the residual oil saturation (ROS). In carbonate formations, the effect of the ionic strength of the injected brine on oil recovery has remained questionable. In this paper, coreflood studies were conducted on Indiana limestone rock samples at 195°F. The main objective of this study was to investigate the impact of the salinity of the injected brine on the oil recovery during secondary and tertiary recovery modes. Various brines were tested including deionized water, shallow-aquifer water, seawater, and as diluted seawater. Also, ions (Na+, Ca2+, Mg2+, and SO42−) were particularly excluded from seawater to determine their individual impact on fluid/rock interactions and hence on oil recovery. Oil recovery, pressure drop across the core, and core-effluent samples were analyzed for each coreflood experiment. The oil recovery using seawater, as in the secondary recovery mode, was, on the average, 50% of original oil in place (OOIP). A sudden change in the salinity of the injected brine from seawater in the secondary recovery mode to deionized water in the tertiary mode or vice versa had a significant effect on the oil-production performance. A solution of 20% diluted seawater did not reduce the ROS in the tertiary recovery mode after the injection of seawater as a secondary recovery mode for the Indiana limestone reservoir. On the other hand, 50% diluted seawater showed a slight change in the oil production after the injection of seawater and deionized water slugs. The Ca2+, Mg2+, and SO42− ions play a key role in oil mobilization in limestone rocks. Changing the ion composition of the injected brine between the different slugs of secondary and tertiary recovery modes showed a measurable increase in the oil production.
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Idrus, Hairuzila, Herri Mulyono, Raihan Mahirah Ramli, Ena Bhattacharyya, and Siti Zulaiha. "Implementation Of Peer Review Assessment To Engineering Students." SHS Web of Conferences 124 (2021): 01001. http://dx.doi.org/10.1051/shsconf/202112401001.
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Online assessment has been increasingly popular in the tertiary education setting nowadays and has had significant changes to the process of assessment. Several studies have been conducted on online assessment, particularly on online peer assessment and found that it benefits students in teaching, learning and assessment. This paper will discuss the result of a study conducted in a Chemical Engineering class which uses online peer assessment as one of the tools to conduct assessment. The objective of this study was to investigate the effectiveness of online peer assessment to students’ learning from the students’ perspective. The perspective of the students was under study because they are the ones who are going through the process, thus, the effectiveness of the assessment to their learning can only be known if the information is obtained from them. The students were divided in small groups and asked to conduct online peer assessment using any free online survey tools. Each group had to conduct 2 or 3 cycles of peer assessment to ensure validity of the rating. The peer rating was used to produce individual marks for group work. At the end of the semester, the students were asked to write a reflection on the effectiveness of online peer assessment in their learning process of the course. The result of this study found that students have positive perspectives on the effectiveness of this assessment. This will be further discussed in the paper. In addition, pedagogical implications will also be discussed on the use of such online peer assessment in student’s learning task.
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Mohd Nasir, Siti Rashidah, and Mohamad Shahrizan Bariman. "Factors that Discourage Secondary School Students to Enrol in the Civil Engineering Programs." Environment-Behaviour Proceedings Journal 5, SI3 (December 28, 2020): 187–92. http://dx.doi.org/10.21834/ebpj.v5isi3.2558.
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Enrolment of students in Malaysia tertiary level programs related to STEM-based has shown a significant reduction in numbers which resulted in a decreasing number of enrolment in the Degree of Civil Engineering programs. The purpose of this study is to identify the level of student’s awareness; factors that influence the students; and suggestions for improvement. The respondents are students from secondary school in Negeri Sembilan and UiTM. The findings of this study indicate that there is a significant difference in the level of awareness according to areas; misled perception towards the program; and lack of participation from school and parent. Keywords: STEM-based education, Civil Engineering, awareness, secondary-level students eISSN: 2398-4287© 2020. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v5iSI3.2558
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Shatnawi, Esraa M., Salim Masadeh, Wafa’ Shatnawi, Ahmad Shatnawi, and Noor M. Masadeh. "Prevalence of Celiac Disease in Type 1 Diabetes Mellitus among the Pediatric Age Group at Prince Hamza Hospital, a etrospective Data Analysis and Literature Review." Scholars Journal of Applied Medical Sciences 10, no. 9 (September 29, 2022): 1565–66. http://dx.doi.org/10.36347/sjams.2022.v10i09.024.
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As the relationship of celiac disease (CD) and many other autoimmune diseases is well recognizing and multiple previous studies talks about the importance of early detection and control. We tried to collect the data and analyses the prevalence of Celiac Disease and Diabetes Mellitus (DM) type 1 for our patients (who have a regular visit on the endocrine unit at Prince Hamza tertiary hospital).
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Pratama, Randy Agra, and Tayfun Babadagli. "New Formulation of Tertiary Amines for Thermally Stable and Cost-Effective Chemical Additive: Synthesis Procedure and Displacement Tests for High-Temperature Tertiary Recovery in Steam Applications." SPE Journal 26, no. 03 (February 5, 2021): 1572–89. http://dx.doi.org/10.2118/201769-pa.
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Summary A newly formulated chemical additive from a group of amines has been tested and applied to in-situ heavy oil thermal recovery. Switchable-hydrophilicity chemical additives were successfully synthesized from N,N-dimethylcyclohexylamine in the form of homogeneous and hydrophilic solution. Fundamentally, tertiary amines comprise functional groups of hydrophilic and hydrophobic components. These unique features enable this chemical additive to wet both water and heavy oil, yielding potential interfacial tension (IFT) improvement. Furthermore, the reversible chemical reaction of this chemical additive yields both positive and negative ions. An ion pair formed due to the adsorption of cations—[C8H17NH+]—on the surface of heavy oil, whereas the anions—[HCO3−]—promoted solid-phase surface charge modification, therefore, resulting in the repulsive forces between heavy oil and the rock surface—substantially improving water-wetness and restoring an irreversible wettability alteration due to the phase change phenomenon during steam injection. In this research, two types of heavy oil acquired from a field in western Alberta encompassing the viscosity of 5,616 and 46,140 cp at 25°C was utilized in each experiment. All experiments were performed and measured at high-pressure, high-temperature (HPHT) steam conditions up to 200 psi and 200°C. We perceived that favorable IFT reduction was achieved, and irreversible wettability could be restored after combining switchable-hydrophilicity tertiary amines (SHTA) with steam as a result of the solid-phase surface charge modification to be more negatively charged. Phase distribution/residual oil in the porous media developed after steam injection was able to be favorably recovered, indicating that capillary forces could be reduced. Consequently, more than 80% of the residual oil could be recuperated post-SHTA injection, presenting favorable oil recovery performance. In addition to this promising evidence, SHTA could be potentially recovered by switching its reversible chemical reaction to be in hydrophobic form, hence, promoting this chemical additive to be both reusable and more economically effective. Comprehensive studies and analyses on interfacial properties, phase distribution in porous media, and recovery performance exhibit essential points of view in further evaluating the potential of SHTA for tertiary recovery improvement. Valuable substantiations and findings provided by our research present useful information and recommendations for fields with steam injection applications.
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Krishnan, Bindu, Mukund B. Kulkarni, Muktpal M. Bhalerao, and Smita J. Mokal. "Thrombocytopenia among HIV infected patients attending a tertiary care hospital in India." Indian Journal of Clinical Anatomy and Physiology 7, no. 4 (January 15, 2021): 363–66. http://dx.doi.org/10.18231/j.ijcap.2020.076.
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Thrombocytopenia is a frequent hematological complication of human immunodeficiency virus infection which can occur at any stage of HIV infection. The various cytopenias correlate directly with the degree of immunosuppression. However, isolated thrombocytopenia, may be the initial presentation of HIV infection. Incidence of thrombocytopenia is around 10% - 40% and in some patient only thrombocytopenia may be the first sign of HIV infection or AIDS. Since few studies are available from Asian countries we decide to study thrombocytopenia in HIV infection or AIDS from India.The study was conducted at a teaching hospital in India after obtaining ethical permission from the institute. Subjects were recruited after taking written informed consent. Two hundred subjects of both sex and in the age group 18-60 years were recruited for study. Blood samples were collected and analysed on same day within two hours. Platelet count of < 1.5 lakh/mm was defined as thrombocytopenia. Data analysis was carried out using Statistical Package for Social Science (SPSS) version 16.0. p value < 0.05 considered as significant and p value > 0.05 non-significant. The mean platelet count was 2.06935lakh/ mmand highest and lowest platelet count were 4.1lakh/mm and 0.63lakh/mmrespectively. Out of two hundred, 8.5% subjects had thrombocytopenia. Females had a slightly higher prevalence as compared to males but it was not statistically significant (p=0.22). Likewise more of younger age group patients had thrombocytopenia. No significant relation was found between platelet count and ART status (p=0.773). Thrombocytopenia is a common finding in HIV infection. Peripheral destruction of platelets and ineffective platelet production leads to thrombocytopenia among HIV patients. ART improves platelet count and must be started as soon as possible.
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Sun, Yue, Jin-Long Chen, Ai-Min Li, Fu-Qiang Liu, and Quan-Xing Zhang. "Adsorption of Phenol from Aqueous Solution by Aminated Hypercrosslinked Polymers." Adsorption Science & Technology 23, no. 4 (May 2005): 335–46. http://dx.doi.org/10.1260/0263617054769996.
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The adsorption of phenol from aqueous solution onto the hypercrosslinked polymeric adsorbent NDA-100 and its dimethylamine aminated derivatives AH-1, AH-2 and AH-3, the commercial resin Amberlite XAD-4 and the weakly basic anion-exchange resin D301 was compared. Of the tested polymers, the aminated hypercrosslinked resins had the highest adsorption capacities. The empirical Freundlich equation was successfully employed to describe the adsorption process. The specific surface area and the micropore structure of the adsorbent together with the tertiary amino group on the matrix affected the adsorption performance towards phenol. Furthermore, these factors also influenced the thermodynamic properties. Kinetic studies demonstrated that the presence of the tertiary amino group on the polymer matrix decreased the adsorption rate and increased the apparent activation energy of the adsorption process.