Digital Commons Network^™

Design And Optimization Of An Azeotropic Distillation Pilot Plant For The Production Of Pure Ethanol, Samwel V. Manyele

Tanzania Journal of Engineering and Technology (TJET)

This study aimed to design an azeotropic distillation plant using Aspen Plus® V10 software and determine optimal process conditions for producing pure ethanol greater than 95% from pre-concentrated near-azeotropic ethanol-water solution. The non-random two-liquid Redlich-Kwong thermodynamic model was the base method for property analysis and performance prediction. Modelling and simulation of the converged process were conducted for fixed column variables (R = 5, N = 12 and p = 1 atm). Plant operating parameters were varied in the range of 0 to 1 for the pre-heater vapour fraction, 2 to 10 for the column feed plates (NFP), 2 to 6 …

Optimization Pump As Turbine Coupled To A Self-Excited Induction Generator Using Multi-Objective Genetic Algorithm, Emanuel J. Nyirenda

Tanzania Journal of Engineering and Technology (TJET)

As a way of accelerating the deployment of affordable and clean renewable energy generation technologies, applying a pump working as a turbine coupled to a self-excited induction generator is gaining popularity in various areas including energy recovery and micro hydro systems. However, it is currently challenging to predict the performance of the PAT-SEIG system and there is no agreed-upon rule on the selection of the appropriate system to be installed at a particular site. This paper has presented multi-objective optimization to select the best operating point of the PAT-SEIG system. The results show that the peak efficiencies for the PAT …

Effect Of Zr And W Doping On Microstructures, Transition Temperature And Solar Transmittance Modulation Of Thermochromic W/Zr Co-Doped Vo2 Thin Films, Haji F. Haji

Tanzania Journal of Engineering and Technology (TJET)

Thermochromic W/Zr co-doped VO2-based thin films with different concentrations of Zr were successfully deposited on soda lime glass substrates by direct current (DC) magnetron sputtering of V(99)W(01) alloy and Zr targets at a substrate temperature of 425 °C. The films were characterized by x–ray diffraction (XRD), atomic force microscopy (AFM), Rutherford backscattering spectroscopy (RBS), two-point probe and UV/VIS/NIR spectroscopy. The film’s structural properties evolution was significantly influenced by Zr concentration in the films. The transition temperature and hysteresis loop widths of the films were found to decrease with increasing Zr concentration. For the Zr concentrations of 0.21 at.%, 0.23 at.% …

Evaluation Of Cybersecurity In Remote Working Settings For Mobile Network Operators, Victoria Mahabi

Tanzania Journal of Engineering and Technology (TJET)

Cybersecurity has increasingly been a primary concern to people as technology advances and allows them to work remotely. This study thus evaluated the cybersecurity posture for organisations that have opted for remote working culture, whereas emerging cyber threats, practices to combat them, and appropriate guidelines for managing cyber threats were discussed. The study used a descriptive design with a quantitative approach from 118 information technology personnel working for Tanzania's three major mobile network operators (MNOs). SPSS analysed the collected data. The study revealed that predominant cyber-threats affecting MNOs in remote working include human errors, phishing attacks, malicious domains, denial of …

Moderators Of Resistance Training Effects In Healthy Young Women: A Systematic Review And Meta-Analysis, Talita Molinari, Régis Radaelli, Anderson Rech, Clarissa M. Brusco, Anna M. Markarian, Pedro Lopez

Research outputs 2022 to 2026

Molinari, T, Radaelli, R, Rech, A, Brusco, CM, Markarian, AM, and Lopez, P. Moderators of resistance training effects in healthy young women: A systematic review and meta-analysis. J Strength Cond Res 38(4): 804-814, 2024 - To systematically review and analyze the effects of resistance-based exercise programs and potential moderators of change in body fat percentage, whole-body fat and lean mass, muscle hypertrophy, muscle strength, and muscle power/rapid force in healthy young women (between 18 and 35 years). A systematic search was undertaken in 7 databases from inception to May 2022. Eligible randomized controlled trials examined the effects of resistance-based exercise …

English Teachers' Perceptions Of Technological Pedagogical And Content Knowledge (Tpack) And Its Application In English Language Teaching: Post-Covid-19, Indi Ramadhani Daulay, Rahmah Fithriani

Jurnal Pendidikan dan Pembelajaran

This research explores the evolving perceptions of English teachers regarding the integration of Technological Pedagogical Content Knowledge (TPACK) and its application in English Language Teaching (ELT) in the post-Covid-19 educational landscape. Using a mixed methods approach, this research draws from educators' experiences in innovatively incorporating TPACK to increase student engagement, facilitate personalized learning experiences, and improve communication. A total of seventeen English teachers in different schools in North Sumatra, Medan. Findings highlight the influence of TPACK on pedagogical strategies in response to the dynamic post-pandemic educational landscape.

Improve The Learning Motivation Of Equality Package B Students Through The Design Of An Attractive And Interactive Learning Message, Hafif Assulamy, Fitri Sulistiyaningrum, Dwi Ria Ibti Disma, Warneri Warneri, Eny Enawaty

Jurnal Pendidikan dan Pembelajaran

This study analyzes the impact of exciting and interactive learning message design on the learning motivation of equality package B students at the Pontianak SKB SPNF. Using a qualitative approach to case studies, data is collected through interviews, observations, and document analysis. The results showed that conventional learning methods were less effective, while students wanted more dynamic learning. Observations identify the limitations of learning media use. Document analysis highlights the need for a learning design focusing more on student characteristics. Implications and recommendations are discussed to improve student learning quality and motivation.

The Utilization Of Audio-Visual Learning Media In Learning Islamic Cultural History For Grade 10 High School Students, Wadza Umi Rosida, Hafidz Hafidz

Jurnal Pendidikan dan Pembelajaran

This research is to evaluate and identify the effectiveness of school innovation efforts in teaching the History of Islamic Culture through audio-visual learning media. Using qualitative descriptive data analysis. The research subjects were students in class 10.3 of SMA Muhammadiyah 2 Surakarta. Data was collected through interviews, field observations, and posttest results for 4 weeks. The results of the research show that the use of audio-visual learning media in learning the History of Islamic Culture for grade 10 students is proven to be able to achieve learning objectives well. This is proven by the post-test answers.

Challenges And Innovation: Exploring The Impact Of Transformational Leadership And Teacher Creativity, Nurlaelah Nurlaelah, Unifah Rosyidi, Sukro Muhab, Ahmad Jauhari Hamid Ripki

Jurnal Pendidikan dan Pembelajaran

This study investigates the impact of transformational leadership on teachers' creativity at Madrasah Ibtidaiyah in Karawang Regency. Most teachers adhere to conventional teaching approaches and do not incorporate novel concepts or advancements, as evidenced by the 65% success rate. The data was analyzed using quantitative methodology, which included surveys and analytical techniques. The study found that transformational leadership significantly impacted teacher creativity. The T-Statistics values of 3.331 exceeded the critical T-table value of 1.699, and the P-Values of 0.000 were less than the significance level of 0.05. The research hypothesis states that transformational leadership positively affects teacher creativity in Karawang.

Dronedarone For The Treatment Of Atrial Arrhythmias In Adults With Congenital Heart Disease, Mahdi S Agha, Peter R Ermis, Wayne J Franklin, Dhaval R Parekh, Angeline D Opina, Jeffrey J Kim, Christina Y Miyake, Santiago O Valdes, Wilson W Lam

The Texas Heart Institute Journal

BACKGROUND: Atrial tachyarrhythmias are common and difficult to treat in adults with congenital heart disease. Dronedarone has proven effective in patients without congenital heart disease, but data are limited about its use in adults with congenital heart disease of moderate to great complexity.

METHODS: A single-center, retrospective chart review of 21 adults with congenital heart disease of moderate to great complexity who were treated with dronedarone for atrial tachyarrhythmias was performed.

RESULTS: The median (IQR) age at dronedarone initiation was 35 (27.5-39) years. Eleven patients (52%) were male. Ten patients (48%) had New York Heart Association class I disease, 10 …

Ypfs Lessons Learned Oral History Project: An Interview With Mark Branson, Mark Branson, Mercedes Cardona

Documents

No abstract provided.

Setting Sails To Sundry Shores; Transnational Memories Of The Netherlands East Indies In The Eyes Of Danish Writer Aage Krarup Nielsen, Arnoud Arps

Wacana, Journal of the Humanities of Indonesia

The Danish travel writer Aage Krarup Nielsen (1891-1972) journeyed to the Netherlands East Indies on multiple occasions. Even though his translated work was popular in the Netherlands and beyond, so far it has been paid scant attention in the fields of travel-writing studies and the study of Netherlands Indies literature. Yet, it is valuable in its views on transnational power dynamics within the Netherlands East Indies society. This article examines two distinct patterns in Krarup Nielsen’s 1928 travelogue, Mellem kannibaler og paradisfugle (Between cannibals and birds of paradise): the comparisons he makes between the different ethnicities and nationalities …

Letters Of Indonesian Nationalist Sjahrir To His Beloved Maria Duchâteau; A Transcultural Case Of Travel Writing, Kees Snoek

Wacana, Journal of the Humanities of Indonesia

The letters Indonesian nationalist Sjahrir wrote between 1932 and 1940 to his Dutch beloved Maria Duchâteau illustrate a transcultural case of travel writing. They also illustrate how much he was convinced that Western ideas and attitudes could assist Indonesian people to develop and gain sufficient self-confidence to shake off the colonial yoke. Born into an elite Minangkabau family, Sjahrir studied in Java and The Netherlands, before taking up campaigning for a non-cooperative political party which emphasized the importance of education. This article discusses the period between early 1932 and 26 February 1934, before Sjahrir’s arrest and following imprisonment and exile. …

Reply To: On The Statistical Foundation Of A Recent Single Molecule Fret Benchmark, Dorothy A. Erie, Lydia Kisley, Dushani Dunukara

Faculty Scholarship

In their ‘Matters Arising’ manuscript, Saurabh et al. discuss two issues related to single-molecule Förster resonance energy transfer (smFRET) experiments: the use of the Gaussian noise approximation and spectral crosstalk. Their arguments are based on simulations obtained with parameters that differ significantly from the typical conditions measured experimentally, and, thus, from the regime included in the original study (Götz et al.1). In addition, they make claims about our multi-lab blind study that we would like to rectify. In Table 1, we provide a list of specific statements made by Saurabh et al. with our respective explanations.

Examining Mechanical Property Differences In Concrete With Natural And Synthetic Fiber Additives, Walid Fouad Edris, Sammy Elbialy, Ayman El-Zohairy, Ashraf Mohamed Soliman

Faculty Publications

The rapid growth of Natural Fiber Laminate (NFL) innovation is a direct response to environmental challenges, positioning these materials as superior alternatives to synthetic fiber composites. This paper delved into the outcomes of an extensive experimental study investigating the influence of sisal fiber (SLF), banana fiber (BF), and glass fiber (GF) on the mechanical and microstructural characteristics of concrete. The water absorption curves were established for sisal fiber concrete (SLFC), banana fiber concrete (BFC), and glass fiber concrete (GFC). Furthermore, Scanning Electron Microscope (SEM) observations were conducted to perform microanalysis and failure analysis of the tested specimens. The results revealed …

Sol-Gel Synthesis And Microstructure Characterization Of Nio-Tio2 Semiconductor, Godlisten N. Shao

Tanzania Journal of Engineering and Technology (TJET)

NiO-TiO2 is a fascinating p-n semiconducting binary metal oxide with unique electronic and optical properties. The NiO-TiO2 has been synthesized using complicated preparation methods and expensive precursors that hamper their large-scale production. The present study reports the preparation of NiO-TiO2 semiconductor with improved physicochemical properties. NiO-TiO2 samples were prepared through one-pot sol-gel synthesis process followed by sintering of the as-synthesized materials at temperatures ranging from 600 to 1000 °C. The role of thermal treatment and NiO content on the microstructures was exquisitely studied. The microstructure of the NiO-TiO2 samples was examined by Raman spectroscopy, XRD, XRF, SEM-EDAX, high resolution TEM, …

General Hydrogeochemical Characterization Of Groundwater In Coastal Aquifers Of Kilwa Kisiwani Oceanic Island, South East Tanzania, Simon R Melchioly

Tanzania Journal of Engineering and Technology (TJET)

The main objective of this study was to determine the hydrogeochemical processes controlling the groundwater chemistry on the Island and assess its suitability for human consumption and irrigation. The methodology used in the study include hydrogeological assessment of the study area and laboratory analysis for general physico-chemical parameters of groundwater. Other parameters such as Soluble sodium percentage (SSP) or % Na+, Sodium Adsorption Ratio (SAR), Magnesium adsorption ratio (MAR), Residual sodium carbonate (RSC), hydrochemical facies classification, and Water Quality Index (WQI) were calculated using empirical formulae. The effects of salinization of groundwater were classified using the chloride-Bicarbonate (Cl/HCO3) and the …

The George-Anne Daily, Georgia Southern University

George-Anne Media Group: Newsletters & Magazines

No abstract provided.

Urc Celebrates A Quarter Century Of Showcasing Student Research, Unh Communications And Public Affairs

UNH Today Archive

No abstract provided.

Bringing The History Of Unh's President’S House To Life, Keith Testa

UNH Today Archive

No abstract provided.

Jtc 24: The Secret Is In The Sauce, Hannah Hoang

University of Mississippi News

This story is part of the 2024 Journey to Commencement series, which celebrates the pinnacle of the academic year by highlighting University of Mississippi students and their outstanding academic and personal journeys from college student to college graduate.

Education Professor, Program Director Honored For Student Support, Marvis Herring

University of Mississippi News

OXFORD, Miss. – Two University of Mississippi employees are being honored for caring service to students that goes well beyond their campus responsibilities.

Writer Wright Thompson To Give Commencement Address, Clara Turnage

University of Mississippi News

OXFORD, Miss. – An Oxonian and Mississippi native will take the stage this year at the University of Mississippi's 171st annual Commencement.

The Effect Of A Cognitive Training Strategy Supported By Complex Exercises On Learning Some Football Skills For Second-Year Intermediate Students, Saadullah Saeed Majeed, Ismail Abid Zaid, Ameena Kareem Hussein

Modern Sport

The purpose of this paper is to prepare educational units for the cognitive training strategy, prepare complex exercises specific to soccer, and identify the effect of using the cognitive training strategy according to complex exercises in learning some soccer skills. The researchers used the experimental method with a rotating design for the two experimental groups and the control group to suit the nature of the research problem. The research aims to identify the research population represented by middle-aged second grade students for the academic year 2023/2024 in the Baghdad Education Directorate Al-Karkh III, who number (132) students divided into four …

Attentional Control As A Function Of Predicting Legal Knowledge In Female Students' Basketball, Hussein Hamza Jawad, Raad Abdul Amir Finjan

Modern Sport

The main problem facing female students today is their need for a high level of attention and control over it, as it has an important role as it represents one of the important mental abilities in the cognitive aspect. From here, the research problem emerged in predicting legal knowledge in basketball in terms of female students’ attention control, and the research aims To identify the correlation between attentional control and legal knowledge in female students’ basketball, and to find an equation to predict legal knowledge in basketball in terms of female students’ attentional control, the descriptive approach was used in …

The Effect Of The Kud Strategy On Extended Thinking And Learning The Serving Skill Among Students Of The College Of Physical Education And Sports Sciences / University Of Wasit, Mustafa Waleed Al-Fahdawy, Haneen Maisam Al-Saady, Ahmed Jamal Al-Fahdawy

Modern Sport

The KUD strategy is considered one of the strategies that has a major role in thinking between students in one group and between other groups, and thinking between students is different. The importance of the research emerged by relying on the KUD strategy of extended thinking and learning the skill of serving with volleyball in order to achieve correct performance and achieve the basic goal of the research. As for the problem of the study, there is a weakness in performing the skill of serving in volleyball. The researchers attribute the weakness of the skill of serving to this due …

The Effect Of Educational Exercises According To The Mind Mapping Strategy On The Artistic Performance Of The Triple Jump Event For Students, Diana Ghanem Yahya, Aseel Jaleel, Hind Waleed Kalaf

Modern Sport

Educational exercises and the mind mapping strategy are advanced educational methods that focus on improving learning processes and organizing information effectively. The learner’s ability to perform this movement efficiently plays a major role in determining his success in the skillful performance of the triple jump event. Through the work of female researchers in the field of education, they noted there is a discrepancy in the artistic performance of the learners of this event, between positive and negative. All of this created a problem for the researchers, and the most important reason may be the learning exercises through mind maps. The …

Decision-Making And Its Relationship To Some Basic Offensive Skills In Female Students’ Basketball, Sahar Hurr Majeed, Naima Zidan Khalaf

Modern Sport

The purpose of this paper is to identify the degree of decision-making and its relationship to some basic offensive skills in basketball for female students, as decision-making is an individual’s ability to reach a solution to an objectionable problem or a confusing situation, by choosing a solution from existing or innovative alternatives, and this choice depends on the information that the individual has collected about The problem depends on the values, habits, experience, education, and individual skills. The game of basketball is characterized by the presence of many changing situations during the match. It is a struggle of decisions between …

The Effect Of Using The Individual Competition Method In Learning The Skills Of Chest Passing And Free Throw In Basketball For Students, Sura Gasid Hasan

Modern Sport

The world has benefited from modern technologies in education, and people are racing to innovate and obtain modern educational methods. Teaching methods and methods of learning developed rapidly as a result of great scientific progress, and countries around the world began to compete with each other to reach what is new and advanced and serves the educational process quickly. Hence the necessity of using the method of individual competition and its practical applications, and by using this method to teach skills. Basketball and through skill tests to determine its impact on learning the skills of passing and the basketball free …

The Orientation Towards The Teaching Profession And Its Relationship To Classroom Management Among Students Applying To The College Of Physical Education And Sports Sciences, University Of Babylon, Mortada Ali Shaalan

Modern Sport

The importance of the research lies in the fact that to achieve the great achievements that nations and peoples maintain their positions among the nations, the applied students are a project of professors and teachers who are the makers of the future. The problem of the research lies in the fact that the applied students are in schools, and through the researcher’s observation of the students during the application period, he found that some Applicants have weakness in classroom management, as well as in their orientations towards the physical education lesson, and this affects the performance or management of the …