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Articles 695881 - 695910 of 5157038

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The Meaning Of And Space For Women Empowerment In The World Of Male-Dominated Sports: An Interpretative Phenomenological Analysis, Cayenne Gabrielle B. David, Amie Provido, Jose Mari Luis T. Palileo, Jackie G. Galo, Liezl Rillera Astudillo May 2022

The Meaning Of And Space For Women Empowerment In The World Of Male-Dominated Sports: An Interpretative Phenomenological Analysis, Cayenne Gabrielle B. David, Amie Provido, Jose Mari Luis T. Palileo, Jackie G. Galo, Liezl Rillera Astudillo

DLSU Senior High School Research Congress

Women empowerment among athletes has been one of the significant factors in female sports engagement. The objective of this research is to uncover how female athletes who participate in male-dominated sports experience empowerment. The researchers utilized the Snowball technique to interview eight women university athletes with at least one year of experience in the sports of basketball or football for this qualitative study. Topics such as how athletes interpret empowerment and how they experience empowerment on a personal level were covered in semi-structured interviews. To assess the data, they analyzed through IPA techniques. According to the findings, women athletes define …

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Impact Of Information Technology Infrastructure Usage To Online Learning Of Engineering Students, Lian Anthony T. Denisa, Mar John M. De Pedro, Jaenhel E. Mencidor May 2022

Impact Of Information Technology Infrastructure Usage To Online Learning Of Engineering Students, Lian Anthony T. Denisa, Mar John M. De Pedro, Jaenhel E. Mencidor

DLSU Senior High School Research Congress

Changes brought upon by circumstances pushed the government to shift education into a more online-based setting in order to continue the education of the learners without sacrificing quality education. The usage of information technology infrastructure, or in other words, the utilization of technology applications, mobile phones, desktops, or laptops, was seen drastically throughout the past two years. Research suggest that the usage of CAD, CAE, CAM, Pro/Engineer, AutoCad, Manufacturing and design software, and 3D Modeling bridges the gap to help engineering students master the demanded rich scientific and theoretical knowledge in the higher educational system. Besides, the current curriculum also …

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A Descriptive Correlational Study On The Physical Environment And Perceived Academic Performance Of Stem Online Learners, Noel Andrei B. Aprecia, Gillley A. Barrera, Kent Robert A. Cuares, Maxene Julia L. Cuison, Maryll Kate D. Lazaro, Katrina Kyla M. Pat-I, Yhl John H. Sayson May 2022

A Descriptive Correlational Study On The Physical Environment And Perceived Academic Performance Of Stem Online Learners, Noel Andrei B. Aprecia, Gillley A. Barrera, Kent Robert A. Cuares, Maxene Julia L. Cuison, Maryll Kate D. Lazaro, Katrina Kyla M. Pat-I, Yhl John H. Sayson

DLSU Senior High School Research Congress

This study investigated the conditions of the learning environment at home and perceived academic performance of the STEM 12 online learners of Notre Dame of Marbel University – IBED Senior High School in the midst of the COVID-19 pandemic and determined the significance and extent of the relationship between the two. Based on the inclusion criteria, 198 respondents were taken for this study. The study was conducted in the locale of the Notre Dame of Marbel University – IBED Senior High School during the first semester. The data used in the conclusions was collected through Google Forms through online survey …

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Assessing And Mapping Of Provincial Risks Of Covid-19 Using Regression-Based Significant Factors In The Philippines, Pauline Dela T. Roca, Jasper Victor Y. Miranda, Shirl Angelee R. Ocampo, Timothy F. Olvina May 2022

Assessing And Mapping Of Provincial Risks Of Covid-19 Using Regression-Based Significant Factors In The Philippines, Pauline Dela T. Roca, Jasper Victor Y. Miranda, Shirl Angelee R. Ocampo, Timothy F. Olvina

DLSU Senior High School Research Congress

The Coronavirus disease (COVID-19), a highly contagious fatal viral disease, has infected millions of people and led to substantial losses of human lives worldwide. The Philippines was considered a COVID-19 high-risk country because of the numerous surges, especially in the National Capital Region (NCR) and nearby provinces (‘NCR Plus’ bubble). In line with the UN Sustainable Development Goal 3 on health and well-being, this research was conducted to identify the significant correlates of COVID-19 relative risks and cases in the Philippines in 2020 and 2021, using multiple linear regression model, negative binomial regression model, and principal component analysis. It also …

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Search-Cov: A Mobile Application For Searching And Summarizing Covid-19 Research Articles, Annika Marie P. Domondon, John Joseph S. Liwag, Lhara Ellaine L. Salcedo May 2022

Search-Cov: A Mobile Application For Searching And Summarizing Covid-19 Research Articles, Annika Marie P. Domondon, John Joseph S. Liwag, Lhara Ellaine L. Salcedo

DLSU Senior High School Research Congress

Acquiring reliable information is necessary to combat COVID-19 effectively. However, these bits of information are contained in lengthy and highly technical research papers, which discourages the public from reading them and forces them to conveniently get information from unreliable sources that fuel misinformation. Thus, the study aimed to develop SEARCH-COV, an Android mobile application capable of searching, downloading, and automatically summarizing COVID-19 research articles. The application was coded using Python Kivy and Python Natural Language Tool Kit (NLTK). Web scraping techniques were used for developing the search functionality while extractive summarization techniques were used for the summarization functionality by implementing …

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In Vitro Antimitotic Activity Of Orthosiphon Aristatus (Cat’S Whiskers) Using Allium Cepa Root Assay, Jensen Justice Y. Pimentel, Eric Joshua Stangeland, Leah D. Madrazo May 2022

In Vitro Antimitotic Activity Of Orthosiphon Aristatus (Cat’S Whiskers) Using Allium Cepa Root Assay, Jensen Justice Y. Pimentel, Eric Joshua Stangeland, Leah D. Madrazo

DLSU Senior High School Research Congress

Researchers have been investigating other potential treatments for cancer, especially knowing that cancer is a huge health issue in the world. Some of these potential treatments are chemotherapy, radiation therapy, and even medicinal plants. One plant that may have potential anticancer properties as a medicinal plant is Orthosiphon aristatus. So far, the in vitro studies that were conducted on O. aristatus are MTT assay, cell migration assay, caspase inhibition assay, colony formation assay, nuclear condensation by Hoechst 33342 stain, and mitochondrial membrane potential by Rhodamine 123 Stain. There have been limited studies in assessing the antimitotic activity of O. aristatus …

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Current Status Of Seaweed Research In The Philippines, Aames Juriel B. Morales, Ashley Mae A. Pineda, Julianna Margaux T. Magabo, Jm Ajegram A. Esperanza, Mark Christian Felipe R. Redillas May 2022

Current Status Of Seaweed Research In The Philippines, Aames Juriel B. Morales, Ashley Mae A. Pineda, Julianna Margaux T. Magabo, Jm Ajegram A. Esperanza, Mark Christian Felipe R. Redillas

DLSU Senior High School Research Congress

Seaweeds are large, multicellular marine algae that are ecologically and economically important. In the Philippines, different species are being cultivated and exported as they serve as food or as sources of natural products such as carrageenan. However, the seaweed industry in the country has fallen behind others. Neighboring countries like Indonesia are now leading the global seaweed market. This may be due to factors such as rising abiotic stressors, poor crop management, economic issues, and most especially, a poor research field. Thus, this study utilizes bibliometric analysis to determine the status of the Philippine seaweed research field. A keyword search …

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Correlation Between Fine Particulate Matter, Weather, And Traffic Conditions On Taft Avenue During The Covid-19 Pandemic, Patricia Erin Bailey H. Baldivia, Raymond G. Bilocura Jr., Thoby Kyle T. Go, Sofia T. Lim, Emmanuel John R. Taylan May 2022

Correlation Between Fine Particulate Matter, Weather, And Traffic Conditions On Taft Avenue During The Covid-19 Pandemic, Patricia Erin Bailey H. Baldivia, Raymond G. Bilocura Jr., Thoby Kyle T. Go, Sofia T. Lim, Emmanuel John R. Taylan

DLSU Senior High School Research Congress

In light of the COVID-19 pandemic, an Enhanced Community Quarantine (ECQ) was imposed from August 6 to August 20, 2021 in the National Capital Region of the Philippines. With an imposed lockdown, the air pollution levels in a metropolitan area may have decreased. Hence, the study focused on finding a correlation between the air pollution concentrations, weather, and traffic conditions on Taft Avenue from August 1 to 14 and September 5 to October 2, 2021. To do so, the researchers have utilized real-time data on fine particulate matter (PM2.5), weather, and traffic conditions using Google Maps, Weather Underground, IQAir, and …

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#Nostudentsleftbehind: The Role Of Digital Inclusion In The Academic Performance Of Senior High School Students Amid The Pandemic, Karina Leancel A. Dapal, Gaea Ayn Maui E. Entico, Kimberly Anne A. Lontok, Ariana Mariel D. Magdalena May 2022

#Nostudentsleftbehind: The Role Of Digital Inclusion In The Academic Performance Of Senior High School Students Amid The Pandemic, Karina Leancel A. Dapal, Gaea Ayn Maui E. Entico, Kimberly Anne A. Lontok, Ariana Mariel D. Magdalena

DLSU Senior High School Research Congress

As society continually progresses in the 21st century, there is evident advancement in the utilization of digital devices and the internet. With this, digital inclusion, or an individual’s ability to use and access information and communications technology (ICT), is particularly relevant in the present day. Furthermore, the COVID-19 pandemic has only exacerbated the need for adequate digital inclusion levels among students. This paper describes the relationship between the digital inclusion levels and the academic performance of senior high school students during the pandemic, and determines the sociodemographic and socioeconomic characteristics that influence both digital inclusion and academic performance. Using a …

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Analyzing The Relationship Between Time-Related Factors And Learning Motivation In An Online Distance Learning (Odl) Setup Using Ordinal Multinomial Regression, Asher Jethro D. Albano, Chelsea Reine S. Martirez, Gilliana Ysabel J. Ngo, Isaiah John A. Verdejo May 2022

Analyzing The Relationship Between Time-Related Factors And Learning Motivation In An Online Distance Learning (Odl) Setup Using Ordinal Multinomial Regression, Asher Jethro D. Albano, Chelsea Reine S. Martirez, Gilliana Ysabel J. Ngo, Isaiah John A. Verdejo

DLSU Senior High School Research Congress

The pandemic has shifted all modes of education into the Online Distance Learning (ODL) Setup. Thus, several factors affect students’ perception on education and their learning motivation. However, previous studies lack discussion on the effect of time-related factors in determining students' learning motivation in this setup. This paper aims to analyze the relationship between different time-related variables and the students' learning motivation, exploring it with other non-time-related variables using ordinal multinomial regression analysis. Data were gathered by surveying ID 121 Grade 12 students of the De La Salle University - Integrated School (DLSU - IS) Manila. Results revealed that at …

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Analyzing The Impact Of Gaming On The Mental Well-Being And Academic Performance Among Senior High School Students, Aaron James M. Capinpin, Roi Victor P. Roberto, Ramon Diego A. Tan May 2022

Analyzing The Impact Of Gaming On The Mental Well-Being And Academic Performance Among Senior High School Students, Aaron James M. Capinpin, Roi Victor P. Roberto, Ramon Diego A. Tan

DLSU Senior High School Research Congress

As the online gaming industry grows, so does its community, which is especially true nowadays amidst the pandemic. A large part of this community consists of adolescents. Most people have become actively engaged in computer games as a way to cope with stress due to the pandemic; some engage in gaming for an unhealthy amount of time, which may lead to a negative impact on their mental well-being and their academic performance. This study aims to determine the impact of gaming on mental well-being and academic performance among teenage students. A survey was conducted among 34 senior high school students …

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40th Day After Death: An Analysis On ‘Katuwa’ Tradition Of Katribo (Agta) In Tagkawayan, Quezon, Maria Venus Hento, Jea Marie P. Grajo, Ceejay Martinez May 2022

40th Day After Death: An Analysis On ‘Katuwa’ Tradition Of Katribo (Agta) In Tagkawayan, Quezon, Maria Venus Hento, Jea Marie P. Grajo, Ceejay Martinez

DLSU Senior High School Research Congress

Katuwa is a tradition of Agta in Sitio Mapatong to express their gratitude and sympathy for their katribo’s 40th day after death, as well as to commemorate the tribe’s last memory. Moreover, it also symbolizes as the soul that will leave them forever after 40th day. The study used descriptive type of research in a qualitative approach. The interview protocol and participation in the community was utilized to gather information about their traditions. The study was conducted in Sitio Mapatong Barangay Sto. Tomas Tagkawayan Quezon. The community was in isolated area where the researchers walked for almost three hours. The …

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Igotchu Covered: Understanding Female Instagram Users' Reliance On Beauty Filters, Aubrey A. Audije, Lara Francesca M. Carpena, Kaye Ashny Mariana A. Leonizo, Liezl Rillera Astudillo May 2022

Igotchu Covered: Understanding Female Instagram Users' Reliance On Beauty Filters, Aubrey A. Audije, Lara Francesca M. Carpena, Kaye Ashny Mariana A. Leonizo, Liezl Rillera Astudillo

DLSU Senior High School Research Congress

The study sought to explicate the influence of female Instagram users' attributes on their dependence on aesthetic enhancers or filters. There are minimal studies involving the actual grounds of beauty enhancement usage, as most studies are concentrated on its effects. Therefore, this study aims to determine the factors that affect a late adolescent female’s tendency to use beauty filters on Instagram, what motivates them in using these beauty enhancers, and the effects of Instagram usage on the desire to enhance their physical appearance. With that said, it is hypothesized that the intensity of social media use, social media awareness, the …

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The Influence Of Parasocial Relationships On Celebrity Credibility And Consumer Behavior Before And After A Tv Show Finale, Renzo Josh M. Bugarin, Quijana Jynnyll A. Samilo, Articus Filipe E. Tolentino May 2022

The Influence Of Parasocial Relationships On Celebrity Credibility And Consumer Behavior Before And After A Tv Show Finale, Renzo Josh M. Bugarin, Quijana Jynnyll A. Samilo, Articus Filipe E. Tolentino

DLSU Senior High School Research Congress

Parasocial relationships (PSR) are characterized by the feeling of intimacy or personal connection by media consumers to media characters through one-sided interactions. In recent years, studies revealed that people have become increasingly dependent on online personas or celebrities to seek comfort and fulfill self-indulgent interactions during the pandemic. However, previous literature on PSR fails to monitor the development of investigated factors over impactful changes in the media such as the airing of a finale. This study is therefore conducted to fulfill two main objectives: a) to determine the relationship of PSR with celebrity credibility and consumer behavior and b) to …

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An Evaluation Of The Environmental And Transmission Implications Of The Biomedical Waste Production And Management Amidst The Covid-19 Pandemic In The Philippines: A Case Study, Lian Patrice C. Barayang, Ignacius Carell A. Cruz, Kimberly Joyce G. De Vera, Janel Christine F. Inumerable May 2022

An Evaluation Of The Environmental And Transmission Implications Of The Biomedical Waste Production And Management Amidst The Covid-19 Pandemic In The Philippines: A Case Study, Lian Patrice C. Barayang, Ignacius Carell A. Cruz, Kimberly Joyce G. De Vera, Janel Christine F. Inumerable

DLSU Senior High School Research Congress

The effects of the COVID-19 pandemic on the production and management of Biomedical Waste (BMW) presents a challenging problem due to its potential risks to the environment and human health. Given rising infections and extended health protocols, personal protective equipment (PPE) production continues, leading to increased BMW. Hence, the study aims to analyze the environmental impacts of pandemic-related BMW in the Philippines and their potential role in transmitting the COVID-19 virus via a mixed-methods analysis of data from surveys of different sectors (consumers of medical waste, delivery men, and medical workers) and secondary sources. From the results, the most common …

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Waste Battery: Harnessing Bioelectricity From Different Types Of Food Waste Through Microbial Fuel Cells, Grant Sethrey S. Balingit, John Nicolas L. Donado, Helene Therese C. Tan May 2022

Waste Battery: Harnessing Bioelectricity From Different Types Of Food Waste Through Microbial Fuel Cells, Grant Sethrey S. Balingit, John Nicolas L. Donado, Helene Therese C. Tan

DLSU Senior High School Research Congress

As the world continuously advances and develops, there is also a growth in population, where there is an increasing need for energy demand and the amount of food waste produced. Hence, there is a great need to search for solutions that cater to both problems while still being accessible to underprivileged households. This research studied the potential of fruit, meat, and vegetable food wastes in harnessing bioelectricity utilizing a double-chambered Microbial Fuel Cell or MFC. The researchers adapted the methodology of Sambavi et al. (2021) to prepare the MFC setup. Human urine was collected from a healthy individual to serve …

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Motivational Factors And Participation Of Senior High School Students In Attending Online Masses, Yuval C. Adera, Herlyn Angel P. Barilla May 2022

Motivational Factors And Participation Of Senior High School Students In Attending Online Masses, Yuval C. Adera, Herlyn Angel P. Barilla

DLSU Senior High School Research Congress

The COVID-19 Pandemic has prompted the suspension of masses. Thus, this started online masses and has been used by schools to allow students to attend virtually the sacraments. The study investigates how motivated and participative students are in online masses. The researchers investigated the degree of motivation and level of participation of students, the differences when grouped according to the demographics, and if there exists a significant relationship between the two. A study from Dioso (2014) has specified four motivational factors for students to attend masses: requirement, meaningfulness, liturgical celebration, and parental influence, and served as the main theoretical framework …

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Youtube University As An Alternative Language Learning Modality: Voices Of Senior High School Students, John Adrei V. Satera, Kathryn Claire A. Dela Cruz, Darren Rey C. Javier, Joe Michael B. Aragon, Rodel Q. Caday, Jerusante Montesclaros May 2022

Youtube University As An Alternative Language Learning Modality: Voices Of Senior High School Students, John Adrei V. Satera, Kathryn Claire A. Dela Cruz, Darren Rey C. Javier, Joe Michael B. Aragon, Rodel Q. Caday, Jerusante Montesclaros

DLSU Senior High School Research Congress

YouTube has even been a popular video streaming site while students are in distance learning. Distance learning is a new way of delivering quality and safe education in the Philippine context. However, many students still struggle in this kind of learning setup. SHS students can use YouTube as an alternative medium to gain educational videos without limitations innovatively. Despite this, studies conducted in DepEd Rizal regarding the importance of YouTube in distance learning are scant. This current study aims to qualitatively discover the significance of YouTube among SHS students in times of pandemic. Fifty senior high school students from different …

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Abakabadaf: Reclamation Of Queer Spaces And The Adoption Of Gayspeak By The Mainstream, Gel Ralfrey Louie O. Romero May 2022

Abakabadaf: Reclamation Of Queer Spaces And The Adoption Of Gayspeak By The Mainstream, Gel Ralfrey Louie O. Romero

DLSU Senior High School Research Congress

Gayspeak is a queer argot that was formed to shield the Filipino LGBT community back when discrimination was rampant in the Philippines. Today, gayspeak can be observed in the vocabulary of people that are not part of the LGBT community which shows progress in tolerance. Despite this, the fight for queer equality has still not been achieved. This paper explores the adaptation of gayspeak by the mainstream by interviewing non-LGBT users of gayspeak and gathering the perceptions of the LGBT community towards them. The research found that non-LGBT people use gayspeak because of its comedic nature, capacity for socialization, and …

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White Dashes: A Research And Music Compilation On How Songwriters Harness And Understand The Concept Of Writing Based On Foreign Experiences., Stephanie Ann D. Lavoie May 2022

White Dashes: A Research And Music Compilation On How Songwriters Harness And Understand The Concept Of Writing Based On Foreign Experiences., Stephanie Ann D. Lavoie

DLSU Senior High School Research Congress

Music is part of more than we realize, without music in movies, advertisements, video games, films, and many other types of media, it would change how we immerse ourselves in these other worlds. This research focuses on writing music based on foreign experiences, meaning working with others and meeting their needs while maintaining creative liberty. A survey was conducted where songwriters and composers answered questions about differences between writing based on personal and foreign experiences, along with their opinions on how to write music for others. After the survey, interviews were conducted with some of those who answered the google …

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(G)Olden Days: A Photopoetry E-Book About The Lived Experiences Of A Female Filipino Widowed Elderly During The Covid-19 Pandemic, Jada Antonette M. Medroso, Rachel Maegan D. Ramos May 2022

(G)Olden Days: A Photopoetry E-Book About The Lived Experiences Of A Female Filipino Widowed Elderly During The Covid-19 Pandemic, Jada Antonette M. Medroso, Rachel Maegan D. Ramos

DLSU Senior High School Research Congress

This study aims to create a photopoetry e-book about the lived experiences of being a widowed elderly in the COVID-19 pandemic, and to also answer the primary question: “How can photopoetry be used to convey both social awareness and hope in showing the lived experiences of a Filipino widowed elderly during the COVID-19 pandemic?” To help the researchers achieve their objectives, they related it to theories such as Marxism which explained that because of the unjust system, the elderly are forced to live through inequality and prejudice, and the Ethics of Care theory's explanation of the selfless desire to help …

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Nurture: A Campaign About Animal Adoption In The Philippines Through Digital Illustrations, Julianne P. Chuah May 2022

Nurture: A Campaign About Animal Adoption In The Philippines Through Digital Illustrations, Julianne P. Chuah

DLSU Senior High School Research Congress

This paper focuses on animal adoption in the Philippines and how art can influence people to support this action. Animal adoption is not given much attention in the country, and certain stigmas are surrounding such topics. Additionally, some people prefer to choose the breed of their pet, so they would instead buy from a breeder or a pet store rather than adopting one. This causes shelters to overpopulate with animals, ultimately resulting in the euthanization of some animals. This research aims to normalize animal adoption through art—in the form of a campaign. The paper also connects utilitarianism to adoption in …

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Factors Influencing The Career Decision Of Grade 12 Stem Students, Zharylle A. Estigoy, Gerri Ann C. Rimorin, Tracy Jane V. Wal May 2022

Factors Influencing The Career Decision Of Grade 12 Stem Students, Zharylle A. Estigoy, Gerri Ann C. Rimorin, Tracy Jane V. Wal

DLSU Senior High School Research Congress

Given the current situation, graduating senior high school students are conflicted in their decision-making process because of the pandemic. Students' course selection decisions are among the most important factors in determining their learning achievement and career advancement. The main objective of this research was to identify the most influential factors in students’ course selection in the context of a pandemic. A qualitative phenomenological research design was used in this study. It utilized a semi-structured interview with graduating senior high students through the use of Google Meet. The researchers used thematic analysis to analyze the qualitative interviews required for a phenomenological …

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Paper Review On Application Of Rice Hull Ash As Cement Additive: A Systematic Mapping Approach, Julianne Kate Y. Barra, Yvonne Kirsten N. Estrada, Karlaiah Simonne F. Ngo, Keith Asher N. So, Arnel B. Beltran May 2022

Paper Review On Application Of Rice Hull Ash As Cement Additive: A Systematic Mapping Approach, Julianne Kate Y. Barra, Yvonne Kirsten N. Estrada, Karlaiah Simonne F. Ngo, Keith Asher N. So, Arnel B. Beltran

DLSU Senior High School Research Congress

The amount of rice hull ash in the country continues to rise due to the increased consumption of rice, so utilizing methods to repurpose these wastes would be advantageous to the environment. The approximate number of rice hull wastes in the Philippines for 2021 is 3.96 million metric tons. Moreover, rice hull ash can be applied as an additive to cement because of its amorphous silica and alumina content. The performance of rice hull ash in cement can be affected by incineration under controlled temperatures. Hence, this study aims to evaluate the application of rice husk ash as cement additive …

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Cost-Effective Residential Learning Space Design Conducive To The Flexible Learning Of A Senior High School (Shs) Student Under The New Normal, Kerth Raven B. Ang, Schubert Dwayne T. Chua, James Christian T. Ruiz, Chester Russell U. Tan, Niña Ana Marie Jocelyn A. Sales May 2022

Cost-Effective Residential Learning Space Design Conducive To The Flexible Learning Of A Senior High School (Shs) Student Under The New Normal, Kerth Raven B. Ang, Schubert Dwayne T. Chua, James Christian T. Ruiz, Chester Russell U. Tan, Niña Ana Marie Jocelyn A. Sales

DLSU Senior High School Research Congress

The pandemic has forced every student enrolled in schools in the Philippines to study under the Flexible Model of Learning. Though a typical senior high school student seemed content with the teaching method, they appeared troubled by the constraints arising from their residence’s environment. The learning setups and space appeared inadequate and uncomfortable for their schooling and needs. The paper aimed to propose a home learning setup which considered all the possible factors affecting it, was DIY (do-it-yourself) ready, utilized cost-effective materials, and adhered to a positive level of acceptance from the target audience. Surveys were distributed to Senior High …

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Smart Grid Control: Demand Side Management In Household Refrigerators As A Tool For Load Shifting, Anogh Utkalika Zaman, James Doyle May 2022

Smart Grid Control: Demand Side Management In Household Refrigerators As A Tool For Load Shifting, Anogh Utkalika Zaman, James Doyle

Macalester Journal of Physics and Astronomy

With improved supply of renewable sources of energy the focus has shifted away from simply producing clean energy to efficient consumption of energy. Until cheaper methods of energy storage are developed, Demand Side Management (DSM) is the best option for maximising energy efficiency. This paper proposes a method of turning regular refrigerators into smart demand response fridges. First, we develop an algorithm that accounts for small fluctuations in price and switches the device for optimal performance and lowered running cost. Then, we use longer price fluctuations to predict suitable times for pre-cooling and investigate the reduction in price as a …

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Twisting Lasers With The Faraday Effect, Harrison Werrell May 2022

Twisting Lasers With The Faraday Effect, Harrison Werrell

Macalester Journal of Physics and Astronomy

Our objective with this project was to create a system and procedure to quantify the magnetization of a material with polarized light by using the Faraday Effect, where the light is rotated according to the magnetization. This type of system has seen use in technologies such as magneto-optical drives and optical isolators, and is part of the study of optical materials, along with the similar MagnetoOptical Kerr Effect. Our system, specifically, is intended to be used as part of an advanced Physics Lab in the future. It uses an electromagnet to magnetize a sample, and a laser to observe the …

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Electrical Analysis Of A Pem Electrolysis Cell, Joey Wehrley, James Doyle May 2022

Electrical Analysis Of A Pem Electrolysis Cell, Joey Wehrley, James Doyle

Macalester Journal of Physics and Astronomy

Polymer Electrolyte Membrane (PEM) electrolysis is a form of electrolysis that is heavily used in commercial capacities. It functions by using a membrane and an electric charge in order to perform electrolysis water, splitting it into its component parts - Hydrogen and Oxygen. These parts can then be used in a number of different applications, including reversing the electrolysis process to regenerate some energy in the form of electricity. During this experiment, multiple currents were run through a PEM cell, and voltages across the membrane were measured. It was found that a standard R/C charging model can be fit to …

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The Interaction Of Topological Defects In Anisotropically-Elastic Nematic Liquid Crystals, Carter J. Swift May 2022

The Interaction Of Topological Defects In Anisotropically-Elastic Nematic Liquid Crystals, Carter J. Swift

Macalester Journal of Physics and Astronomy

Topological defects are very well understood so long as the medium in which they exist is isotropically-elastic. They lead to director fields which are easy to calculate and superpose linearly so that a system with any number of defects is analytically treatable. They also have an interaction which is simple in form and can be accurately described by the Peach-Koehler force. In an anisotropically-elastic medium, however, such defects are very poorly understood outside of the single-defect case which was solved by Dzyaloshinskii. In this project, numerical and approximate analytical techniques are applied in order to better understand the interaction between …

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Neutrino Oscillations In The Presence Of A Magnetic Field, Chinhsan Sieng May 2022

Neutrino Oscillations In The Presence Of A Magnetic Field, Chinhsan Sieng

Macalester Journal of Physics and Astronomy

We calculate oscillation probabilities in the presence of an external magnetic field in a one-generation neutrino framework that includes both Majorana and Dirac mass terms. First, we write down the Euler-Lagrange equations and obtain a system of eight differential equations coupling together eight different neutrino states that can be distinguished by helicity, chirality, and particle/antiparticle-ness. We then solve this system of differential equations in various special cases, exhibiting different types of oscillations. When the magnetic field is in the direction of momentum, there are only four oscillation channels as helicity flip is forbidden. We observe that chirality flips are suppressed …

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