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2023

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Behavioral Health Grants Overview 2022, Parkview Health Jan 2023

Behavioral Health Grants Overview 2022, Parkview Health

Health Services and Informatics Research

2022 List of Externally and Internally Funded Research for our Behavioral Health Outreach Initiatives.

Our Mission: To strengthen awareness around mental health, support needs in our community, reduce stigma, and encourage people to connect with care.


Conceptualizing Care Partners' Burden, Stress, And Support For Reintegrating Veterans: A Mixed Methods Study., Nicholas A Rattray, Mindy Flanagan, Allison Mann, Leah Danson, Ai-Nghia Do, Diana Natividad, Katrina Spontak, Gala True Jan 2023

Conceptualizing Care Partners' Burden, Stress, And Support For Reintegrating Veterans: A Mixed Methods Study., Nicholas A Rattray, Mindy Flanagan, Allison Mann, Leah Danson, Ai-Nghia Do, Diana Natividad, Katrina Spontak, Gala True

Health Services and Informatics Research

BACKGROUND: People who support Veterans as they transition from their military service into civilian life may be at an increased risk of psychological distress. Existing studies focus primarily on paid family caregivers, but few studies include spouses and informal non-family "care partners." We sought to identify key challenges faced by care partners of Veterans with invisible injuries.

METHODS: Semi-structured interviews were conducted with 36 individuals involved in supporting a recently separated US military Veteran enrolled in a 2-year longitudinal study. CPs completed validated measures on perceived stress, caregiving burden, quality of their relationship, life satisfaction, and flourishing. Independent

RESULTS: Care …


Chemosensory System Of Tsetse Flies (Diptera: Glossinidae), M. N. Getahun, R. W. Macharia, S. G. Nyanjom, G. F. Obiero, S. Diallo, P. O. Mireji, D. Masiga Jan 2023

Chemosensory System Of Tsetse Flies (Diptera: Glossinidae), M. N. Getahun, R. W. Macharia, S. G. Nyanjom, G. F. Obiero, S. Diallo, P. O. Mireji, D. Masiga

All Peer-Reviewed Publications

Tsetse flies are exclusively hematophagous and vectors of trypanosomes, which cause human and animal African trypanosomiasis. They are widely distributed in Africa, with 33 extant taxa and 22 species in three sub-genera. Despite a low reproductive rate, tsetse can maintain populations large enough to cause the restriction of the economic use of large areas of tropical Africa through the transmission of trypanosomiases. This success is largely due to their ability to navigate in their environments, using olfactory signals, which elicit critical behavioural phenotypes, such as attraction to hosts for blood meals, larviposition and resting sites, as well as avoidance of …


Birth Of A Narrative: Santa Anna Satanized On The Silver Screen, Eddie Anthony Paniagua Jr. Jan 2023

Birth Of A Narrative: Santa Anna Satanized On The Silver Screen, Eddie Anthony Paniagua Jr.

Capstone Projects

“Birth of a Narrative” is a documentary project looking at the history of how former President of Mexico, Antonio López de Santa Anna, has been depicted in movies, television shows, and other visual media in the United States. American film producers have used the power of motion pictures to create a racialized narrative villainizing Antonio López de Santa Anna and Mexicans so as to aggrandize expansionists bent on eliminating or subordinating Tejanos. Films like “Birth of Texas: Martyrs of the Alamo” by DW Griffith and “The Alamo” by John Wayne pulled no punches as they project racial stereotypes of Latinos …


San Antonio At The Military City, Santos Mencio Jan 2023

San Antonio At The Military City, Santos Mencio

Capstone Projects

The San Antonio as the Military City project aims to create a digital medium available to the public that recounts the long history of the many military installations scattered across San Antonio. Exploring the role of these bases in the myriad conflicts the United States has participated in and the impact the bases have had on veterans and the people of San Antonio. This information is conveyed using ArcGIS story maps, and the personal stories of those who have served on these bases will provide a more personal perspective on the role of these bases.


Relationships Among Perceptions Of Support, Experiences Of Gatekeeping, And Burnout In Counselor Educators And Supervisors, Alicia Lamar Jan 2023

Relationships Among Perceptions Of Support, Experiences Of Gatekeeping, And Burnout In Counselor Educators And Supervisors, Alicia Lamar

Dissertations

Counselor educators and supervisors carry out the responsibility of ensuring that counselors in training are competent and fit for practice. Burnout can occur when stressors in the workplace are not addressed. Engagement in the role of gatekeeper and perceptions of support can be factors that impact burnout in counselor educators. The exploration of variables that may relate to counselor educator burnout would benefit the counseling community including counselor educators, counseling students, counseling clients, and the community at large. There has been a paucity of research exploring the relationships among faculty members’ perceptions of support, experiences of gatekeeping, and burnout in …


Response Of Some Mango-Infesting Fruit Flies To Aqueous Solutions Of The Basil Plant Ocimum Tenuiflorum L, Saliou Niassy, Samira Abuelgasim Mohamed, Xavier Cheseto, Evanson Rigan Omuse, John Bwire Ochola, Fathiya Mbarak Khamis, Boubacar Badji, Sheppard Ndlela, Levi Ombura, Noelah Leah Okun, David Mfuti Kupesa, Thomas Dubois, Yeneneh Taye Belayneh, Sevgan Subramanian, Sunday Ekesi Jan 2023

Response Of Some Mango-Infesting Fruit Flies To Aqueous Solutions Of The Basil Plant Ocimum Tenuiflorum L, Saliou Niassy, Samira Abuelgasim Mohamed, Xavier Cheseto, Evanson Rigan Omuse, John Bwire Ochola, Fathiya Mbarak Khamis, Boubacar Badji, Sheppard Ndlela, Levi Ombura, Noelah Leah Okun, David Mfuti Kupesa, Thomas Dubois, Yeneneh Taye Belayneh, Sevgan Subramanian, Sunday Ekesi

All Peer-Reviewed Publications

Introduction: Horticulture is an important sub-sector for many African countries. Tephritid fruit flies continue to cause serious direct and indirect damage to the sub-sector. The male annihilation technique (MAT) using methyl eugenol (ME) is among the most revered techniques in fruit fly management. However, ME-based lures are only available to some farmers in Africa. Several basils of the genus Ocimum produce ME. Methods: In laboratory experiments, we used a dual choice olfactometer to assess the attraction of adult oriental fruit fly Bactrocera dorsalis to intact plants, 100 µL commercial methyl eugenol (ME) (positive control), 10 mg/mL of O. tenuiflorum aqueous …


2023-2024 Faculty Handbook, Morehead State University. Faculty Senate. Jan 2023

2023-2024 Faculty Handbook, Morehead State University. Faculty Senate.

Faculty Senate Records

Morehead State University Faculty Handbook for 2023-2024.


Transport 2040 : Impact Of Technology On Seafarers : The Future Of Work, World Maritime University Jan 2023

Transport 2040 : Impact Of Technology On Seafarers : The Future Of Work, World Maritime University

Reports

Through generous funding from the International Transport Workers’ Federation (ITF), the World Maritime University (WMU) has conducted Phase II of the Transport 2040 flagship project, building on the previous Phase I of the project. Phase II offers a further in-depth exploration of a number of maritime issues related to future ship technologies, including automation, and seeks to qualify the probable impact on seafarers.

Recent discussions in the maritime sector have given rise to expectations that automated ships could become operative in the near future, which has prompted the International Maritime Organization (IMO) to initiate a number of activities. Digital smart …


Modelling The Transmission Dynamics Of African Animal Trypanosomiasis; A Case Study Of Shimba Hills, Kwale County, Kenya, Gladys Jerono Rotich Jan 2023

Modelling The Transmission Dynamics Of African Animal Trypanosomiasis; A Case Study Of Shimba Hills, Kwale County, Kenya, Gladys Jerono Rotich

All Master’s Theses

African Animal Trypanosomiasis (AAT) is caused by parasites of the species Trypanosoma vivax, Trypanosoma congolense, and Trypanosoma rhodesiense. Of 48 sub-Saharan African nations, 36 have endemic cases of AAT. The disease is prevalent in savannah and woodland areas. It poses a major threat to livestock production and health in agro-pastoralist communities, many of which are located along the boundaries of wildlife reserves. Most epidemiological studies on AAT around Shimba Hills National Reserve (SHNR) have focused on the vectors (tsetse fly) and the host (cattle). No studies have been done to show how efficiently a trypanosome can be transmitted from tsetse …


Winter 2023: Evolution Jan 2023

Winter 2023: Evolution

The Weldon Times

A student-run publication from the Schulich School of Law at Dalhousie University.

Editor in Chief: Madeline Heinke


Lenguajes Artísticos Y Expresiones Estéticas En El Arte Urbano Actual. El Caso De Madrid En "Estudios Sociales, Estética, Arte Y Género: Nuevos Enfoques", Natalia Gutiérrez-Colomer Ruiz, Violeta Izquierdo Expósito, Ana Llorente Villasevil Jan 2023

Lenguajes Artísticos Y Expresiones Estéticas En El Arte Urbano Actual. El Caso De Madrid En "Estudios Sociales, Estética, Arte Y Género: Nuevos Enfoques", Natalia Gutiérrez-Colomer Ruiz, Violeta Izquierdo Expósito, Ana Llorente Villasevil

Capítulos de libros

La investigación desarrollada desde el ámbito académico e investigador desempeña un papel fundamental en la promoción de la libertad, la democracia, la igualdad entre hombres y mujeres, etcétera. La investigación producida en las universidades desempeña un papel fundamental en el fomento de la libertad y la democracia en nuestra sociedad. La universidad, como centro de excelencia académica y conocimiento, tiene la responsabilidad de generar investigación rigurosa y relevante que contribuya al desarrollo y avance de la sociedad en su conjunto.

La investigación universitaria fomenta la libertad al desafiar las ideas preconcebidas y cuestionar el statu quo. La libertad de pensamiento …


Proyecto De Diseño De Un Sistema Expositivo Para La Feria De Ilustración Ilustrafest (Udit) En Comunicación, Creación Artística Y Audiovisual: Un Marco Para La Innovación Educativa, María Eugenia Josa Martínez, Rafael Timón Gómez Jan 2023

Proyecto De Diseño De Un Sistema Expositivo Para La Feria De Ilustración Ilustrafest (Udit) En Comunicación, Creación Artística Y Audiovisual: Un Marco Para La Innovación Educativa, María Eugenia Josa Martínez, Rafael Timón Gómez

Capítulos de libros

Este artículo presenta la realización de un proyecto de innovación docente llevado a cabo en el campo del diseño de espacios y stands expositivos. Para ello, se ha contado con la feria de Ilustración de Madrid, IlustraFest23 y los alumnos de la universidad UDIT que estudian la titulación oficial de Diseño Multimedia y Gráfico, para fomentar la creatividad a través de la realización de un proyecto de aplicación real. Este proyecto, compuesto por el trabajo dentro de la asignatura de Delineación de Producto y su desarrollo en el FabLab de UDIT, ha pretendido ampliar la visión de los estudiantes consiguiendo …


An Intersubjective Approach To The Role Of Anger In Differentiation And The Development Of A Cohesive Self: A Case Study, Hannah Schriber Jan 2023

An Intersubjective Approach To The Role Of Anger In Differentiation And The Development Of A Cohesive Self: A Case Study, Hannah Schriber

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

The anger-turned-inward theory of depression has been extensively explored in psychodynamic literature. Still, little has been written about how modern relational approaches work with anger to aid patients in developing a healthy self-concept. This paper will first focus on a literature review of anger in Self Psychology and Intersubjective Systems Theory. These theories view anger as the manifestation of asserting one’s self after narcissistic injury. This paper will explore the relationship between anger and depression with an intersubjective lens utilizing the case study of Martha. Here I conceptualize depression as an introjective defense against misattuned early relational experiences. I explore …


Heterotopic Sports Coaching: Facilitating Epistemic Revolution, Sebastian D. L. Harvey Jan 2023

Heterotopic Sports Coaching: Facilitating Epistemic Revolution, Sebastian D. L. Harvey

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

Sports culture, including its traditional coaching practices and norms aligned with orthodox masculinity, has profound negative implications for the mental health and well-being of athletes. To improve athlete mental health and well-being sports coaching must challenge harmful cultural norms. Sports coaching has repeatedly been problematized through a poststructuralist Foucauldian lens; however, predominantly absent from the literature is Foucault’s concept of heterotopia that enables rule-breaking practices to exist. Therefore, the purpose of this paper is two-fold: (a) to explore Foucault’s heterotopia within the context of sports coaching and (b) to demonstrate its use in altering the culture of sports. I begin …


A Qualitative Analysis Of Treatment Providers’ Understanding And Assessment Of Trauma And Autism, Leah Hanson Jan 2023

A Qualitative Analysis Of Treatment Providers’ Understanding And Assessment Of Trauma And Autism, Leah Hanson

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

Patients with autism spectrum disorder (ASD) are particularly vulnerable to traumatic experiences and further development of posttraumatic stress disorder (PTSD). Underlying traumatic stress is commonly missed and remained untreated in the autism population. In a previous pilot study, Hanson and Richards (2021) gathered providers’ understandings on trauma and autism The current study is a further, systemic content analysis on archival data from Hanson and Richard’s pilot study. Results from the current content analysis of the responses to Question 1 (How do you assess for trauma in your patients?) revealed that providers assess patients’ trauma primarily by interviewing caregiver and patients, …


The High Temperature Degradation Of Ferritic Stainless Steel In Solid Carbon Atmospheres, Prakeaw Ngamsri, Suwijak Pokwitidkul, Paweena Treewiriyakitja, Penpisuth Thongyoug, Ratchapon Nilprapa, Jennarong Tungtrongpairoj Jan 2023

The High Temperature Degradation Of Ferritic Stainless Steel In Solid Carbon Atmospheres, Prakeaw Ngamsri, Suwijak Pokwitidkul, Paweena Treewiriyakitja, Penpisuth Thongyoug, Ratchapon Nilprapa, Jennarong Tungtrongpairoj

Journal of Metals, Materials and Minerals

Stainless steel is widely used for many components and parts in coal-fired thermal power plants. AISI 430 ferritic stainless steel (FSS) is one common grade to combat the degradation at high temperatures in coal combustion atmospheres containing flue gas, coal ash, and soot (impure solid carbon particles). However, the effect of the solid carbon particles on the degradation of FSS needs to be clarified. Graphite powder was used to simulate solid carbon atmospheres for investigating the degradation of AISI 430 at high temperatures of 1150℃ to 1350℃ in coal-fired boilers. After the carbothermic reduction, the mass gain of a pre-oxidized …


Recovery Of Pure Silver From Spent Silver Electroplating Solutions Via Electrochemical Process And Zinc Cementation, Tapany Patcharawit, Chatisa Kansomket, Woranittha Kritsarikun, Ketmanee Taseela, Chonthicha Paernaphan, Thiwavan Laphosin, Teerawut Tannukit, Sakhob Khumkoa Jan 2023

Recovery Of Pure Silver From Spent Silver Electroplating Solutions Via Electrochemical Process And Zinc Cementation, Tapany Patcharawit, Chatisa Kansomket, Woranittha Kritsarikun, Ketmanee Taseela, Chonthicha Paernaphan, Thiwavan Laphosin, Teerawut Tannukit, Sakhob Khumkoa

Journal of Metals, Materials and Minerals

Recycling of spent silver electroplating solutions has been investigated via electrowinning and electrorefining in comparison to zinc cementation technique in this research. Two different compositions of transparent and dark waste solutions were used having the remaining silver contents of 17.71 g⸳L-1 and 33.36 g⸳L-1 respectively. The waste solutions were used as an electrolyte in the first step of electrowinning at low current density of 0.015 A⸳cm-2. It was found that increasing electrowinning time from 4 h to 24 h increased the recovery of silver cathode for both types of waste solutions. The optimum electrowinning time was higher than 8 h, …


Effects Of Indium And Gallium Ratio On Tarnish Resistance, Corrosion And Mechanical Properties Of 950 Silver Alloy, Aumphol Yanil, Patama Visuttipitukul, Ekasit Nisaratanaporn, Charasphat Preuksarattanawut Jan 2023

Effects Of Indium And Gallium Ratio On Tarnish Resistance, Corrosion And Mechanical Properties Of 950 Silver Alloy, Aumphol Yanil, Patama Visuttipitukul, Ekasit Nisaratanaporn, Charasphat Preuksarattanawut

Journal of Metals, Materials and Minerals

The effects of Indium (In) and Gallium (Ga) ratio on tarnish resistance, corrosion and mechanical properties of 950 silver alloy were studied. 950 Silver alloy with aluminium (Al), silica (Si) and germanium (Ge) were added with In and Ga at the range of 0.44 to 1.90 weight percent. The increment of secondary structure with Ge-Si rich phase in Ag-Al alloy increases hardness, but reduces ultimate tensile strength. The addition of In and Ga improves tarnish and corrosion resistance. The color differences as indicated by Delta E tolerances (DE*) of Ag-Al alloys are in the range of 8.64 to 11.40 while …


Investigating The Effect Of Temperature And Nacl Concentration On Corrosion Behavior Using Commercial Food Cans, Samar S. Hussein, Abeer A. Radhi, Wafaa K. Mahmood Jan 2023

Investigating The Effect Of Temperature And Nacl Concentration On Corrosion Behavior Using Commercial Food Cans, Samar S. Hussein, Abeer A. Radhi, Wafaa K. Mahmood

Journal of Metals, Materials and Minerals

In the present work, commercial tin-plate used as storage cans for three different products (salmon fish, green peas, and corn) are used to investigate the corrosion to storage temperature and salt concentration. The corrosion process was electrochemically monitored using the potentiodynamic polarization method and the structure and concentrations of the corrosion products were investigated using X-ray diffraction (XRD). To characterize the resulting sample morphology, emission scanning electron microscopy (FESEM) was used. The results showed that the corrosion resistance of the tin-coating, was important constant and by changing the NaCl concentration and operation temperature, the corrosion resistance was lower. It is …


Optimized Conditions For Cobalt Diffusion In Sri Lankan Colorless Topaz And Coloration Mechanism Elucidation Through Spectro-Chemical Investigation, Chandana P. Udawatte, Sunil Abeyweera, L. R. K. Perera, Sandun Illangasinghe, Chirath Weerasooriya, Chakkaphan Sutthirat, Naleen Jayasinghe, Tilak Dharmaratne, Saranga Diyabalanage Jan 2023

Optimized Conditions For Cobalt Diffusion In Sri Lankan Colorless Topaz And Coloration Mechanism Elucidation Through Spectro-Chemical Investigation, Chandana P. Udawatte, Sunil Abeyweera, L. R. K. Perera, Sandun Illangasinghe, Chirath Weerasooriya, Chakkaphan Sutthirat, Naleen Jayasinghe, Tilak Dharmaratne, Saranga Diyabalanage

Journal of Metals, Materials and Minerals

Most of natural topaz is colorless; thus, methods of color enhancement are widely used for coloring this mineral. Currently, blue color is obtained by cobalt diffusion due to drawbacks in existing coloration methods. In this study, optimum conditions suitable for Cobalt diffusion in Sri Lankan colorless topaz were investigated and coloration mechanism was elucidated. The diffusion agent was prepared by mixing CoCO3 with Na2CO3, CaCO3 and carbon powder and diffusion was carried-out by varying the temperature and soaking time. Chemical analysis, UV-Vis absorption spectrum, infrared absorption spectra, and Raman peaks of diffused and non-diffused topaz were tested. The results clearly …


Fabrication Of Glass-Ceramics Composite By Infiltration Of Lithium Tetraborate Glass Into Porous Magnesium Aluminate Spinel Ceramic, Nattawat Kulrat, Chumphol Busabok, Saweat Intarasiri, Somsak Dangtip, Wasana Khongwong Jan 2023

Fabrication Of Glass-Ceramics Composite By Infiltration Of Lithium Tetraborate Glass Into Porous Magnesium Aluminate Spinel Ceramic, Nattawat Kulrat, Chumphol Busabok, Saweat Intarasiri, Somsak Dangtip, Wasana Khongwong

Journal of Metals, Materials and Minerals

Magnesium aluminate spinel (MAS) glass-ceramics composite has excellent mechanical and optical properties. It can be obtained from porous ceramic by infiltrating the proper choice of glass. In this study, porous MAS ceramic was prepared by conventional sintering from MAS powder to reach a bulk density of 2.48 g∙cm-3 (70.1% of relative density). The porous MAS ceramic was then infiltrated with molten lithium tetraborate glass (Li2B4O7; LTB) at 950℃ for 30 (IF30) and 60 (IF60) min. They were left to cool down to 700℃ inside the furnace before being taken out to quench in ambient. The glass-ceramics composite was obtained with …


Ph-Responsive Polymeric Nanostructures For Cancer Theranostics, Devadass Jessy Mercy, Karthick Harini, Swaminathan Madhumitha, Chinnadurai Anitha, Jayakumar Iswariya, Koyeli Girigoswami, Agnishwar Girigoswami Jan 2023

Ph-Responsive Polymeric Nanostructures For Cancer Theranostics, Devadass Jessy Mercy, Karthick Harini, Swaminathan Madhumitha, Chinnadurai Anitha, Jayakumar Iswariya, Koyeli Girigoswami, Agnishwar Girigoswami

Journal of Metals, Materials and Minerals

Responsive polymeric nanostructures are being designed to improve the efficiency of existing treatment techniques by delivering therapeutics in precise locations. The properties of the particles can be altered to act as a probe for imaging applications also. Hence, an effective theranostic agent can be tailor-made to meet the requirements. The pH variability has aroused considerable interest in nano-responsive-stimulus production since the mild acidic condition is a hallmark of the tumor microenvironment. The cargo sealed inside the carrier will be released either by swelling or disassembly of the carrier as they meet a pH drop. The modification strategy for the synthesis …


Adhesion Of Thermal Oxide Scale Formed On Silicon-Containing Hot-Rolled Steel Oxidised In Oxygen, Wannapha Issaard, Thanasak Nilsonthi Jan 2023

Adhesion Of Thermal Oxide Scale Formed On Silicon-Containing Hot-Rolled Steel Oxidised In Oxygen, Wannapha Issaard, Thanasak Nilsonthi

Journal of Metals, Materials and Minerals

Defects can be caused by the thermal oxide scale that forms on the surface of steel during the hot rolling process. The oxidation and adhesion of scale on silicon-containing hot-rolled steel were investigated in a flowing 20% O2-N2 gas mixture at 900°C. Scale spallation was observed using a tensile testing machine equipped with a CCD camera. The thickness of the scale was 3.45 μm for the higher silicon steel and 4.86 μm for the lower silicon steel. The oxide scale consists of hematite, magnetite, wustite, and iron. The strain that caused the first spallation was used to calculate the mechanical …


Oxidation Behaviour Of Mn-Co Spinel Coating On Aisi 430 Ferritic Stainless Steel With And Without Cu In Ar-Co -H O Atmosphere, Thammaporn Thublaor, Padungaut Srihathai, Panya Wiman, Angkana Muengjai, Somrerk Chandra-Ambhorn Jan 2023

Oxidation Behaviour Of Mn-Co Spinel Coating On Aisi 430 Ferritic Stainless Steel With And Without Cu In Ar-Co -H O Atmosphere, Thammaporn Thublaor, Padungaut Srihathai, Panya Wiman, Angkana Muengjai, Somrerk Chandra-Ambhorn

Journal of Metals, Materials and Minerals

AISI 430 ferritic stainless steel is a promising candidate for utilising as interconnects of solid oxide fuel cells due to its cost effectiveness and durability. Many methods for applying coating on steel substrates have been developed in order to decrease the degradation of steel due to oxidation rate and chromium volatile problems. Manganese-cobalt spinel exhibits high conductivity, thermal expansion compatible with ferritic stainless steels, and forms a barrier to inhibit chromium migration during oxidation. Copper can be added to manganese-cobalt spinel to improve electrical conductivity of the spinel coating. This work investigated oxide scale formation and oxidation rate of Mn-Co …


Production Of Autoclaved Lightweight Concretes Using Pottery Stone And Bagasse Ash, Sutthima Sriprasertsuk, Saijit Daosukho Jan 2023

Production Of Autoclaved Lightweight Concretes Using Pottery Stone And Bagasse Ash, Sutthima Sriprasertsuk, Saijit Daosukho

Journal of Metals, Materials and Minerals

This study investigated the influence of pottery stone and bagasse ash on the mechanical features of autoclaved lightweight concrete. Pottery stone is a natural resource of igneous rock weathering commonly exists with white clay, feldspar and limestone. This raw material is mainly composed of quartz and mica that has been used for the production of ceramic products. Bagasse ash is a waste product of the sugar refining process that causes serious environmental pollution. Pottery stone and bagasse ash waste were physically characterized and partially substituted by the weight of cement in lightweight concrete with the addition of aluminium powder at …


Paper-Based Colorimetric Sensor For Mercury Ion Detection Using Smartphone Digital Imaging, Pakorn Preechaburana, Somsak Sangnuy, Supaluck Amloy Jan 2023

Paper-Based Colorimetric Sensor For Mercury Ion Detection Using Smartphone Digital Imaging, Pakorn Preechaburana, Somsak Sangnuy, Supaluck Amloy

Journal of Metals, Materials and Minerals

In this research, we have developed a colorimetric paper-based sensing platform for the determination of mercury ion (Hg2+) using gold nanoparticles (AuNPs). To evaluate the selectivity in the response to a special target, urea is used as recognizing ligands on AuNPs for selective sensing Hg2+. Colorimetric readings in the presence of various environmentally relevant metal ions, such as Na+, K+, Zn2+, Pb2+, and Hg2+, were also studied. The results show that amongst all the tested metal ions, the SPR peaks are located at 525 nm except in the case of the present of Hg2+, in which is red shifted to …


Dielectric Properties And Electrochemical Behavior Of Graphene Oxide Derived From Myanmar Coal Minerals, Min Maung Maung, Chan Nyein Aung, Gasidit Panomsuwan, Khin Khin Win Jan 2023

Dielectric Properties And Electrochemical Behavior Of Graphene Oxide Derived From Myanmar Coal Minerals, Min Maung Maung, Chan Nyein Aung, Gasidit Panomsuwan, Khin Khin Win

Journal of Metals, Materials and Minerals

Graphene Oxide (GO) metal nanocomposites make up an emerging class of advanced materials and enhance material functionality to obtain multifunctional properties and working towards superior performance of energy storage devices. GO was derived from Myanmar coal minerals using Modified Hummer method. The silver and nickel nanoparticles were used as metal ions or metal nanoparticles to form GO nanocomposites. Their characteristics were identified by XRD, SEM and Raman Spectroscopy. The energy gap of GO and GO composites was also investigated by the aid of UV-Vis spectroscopy. The dielectric constant is measures of the amount of electrical energy that can be stored …


A Review On New Cobalt-Free Cathode Materials For Reversible Solid Oxide Fuel Cells, Sedat Akkurt, Can Sindiraç, Tuğçe Özmen Egesoy, Emre Erğen Jan 2023

A Review On New Cobalt-Free Cathode Materials For Reversible Solid Oxide Fuel Cells, Sedat Akkurt, Can Sindiraç, Tuğçe Özmen Egesoy, Emre Erğen

Journal of Metals, Materials and Minerals

The exponential growth in the requirement of fuel cells and batteries leads to increased demand for cobalt due to its common use in high-performance Li-ion batteries and high-temperature fuel cells/electrolyzers. This sharp increment in demand raises concern about the availability of limited reserves of cobalt which can impact the price of cobalt. Moreover, the geographic limitations of cobalt resources may endanger the whole supply chain. In addition to all those, huge moral issues of cobalt mining are also another problem. Hence, leading battery, fuel cells and electrolyzer manufacturers are looking for sustainable alternatives to reduce cobalt dependency. A more specific …


High-Temperature Oxidation Resistance Of Craln Thin Films Prepared By Dc Reactive Magnetron Sputtering, Nirun Witit-Anun, Adisorn Buranawong Jan 2023

High-Temperature Oxidation Resistance Of Craln Thin Films Prepared By Dc Reactive Magnetron Sputtering, Nirun Witit-Anun, Adisorn Buranawong

Journal of Metals, Materials and Minerals

CrAlN thin films were prepared by using the reactive DC unbalanced magnetron sputtering method from the single alloy target on a silicon substrate. The effect of annealing temperature in the air which ranges from 500℃ to 900℃ for 1 h on phase structure, film composition, surface morphology, microstructure, and hardness was investigated by XRD, EDS, FE-SEM, and Nanoindentation techniques, respectively. The high-temperature (up to 900℃) oxidation resistance of the thin film was also evaluated. The result shows that solid solutions of (Cr,Al)N with (111), (200), and (220) planes for the as-deposited film and no oxide phase were found after annealing …