Digital Commons Network^™

Enhancement Of Thermal Storage Properties Of Phase Change Material By Using Metallic Swarf, Abdulkareem Khudhair, Falah Hatem, Dher Mohammed Ridha

Engineering and Technology Journal

The phase change materials (PCM) is commonly used for storage heat as a latent heat, the main disadvantage of this method is slow response time during charging and discharging; this due to the PCM thermal properties. This work studied experimentally the enhancement of thermal properties of PCM by adding various metallic swarf such as copper, aluminum and iron swarf. Metallic swarf used as thermal conductivity promoter to produce modified paraffin wax samples. The addition of the previous enhancers was conducted with a weight fraction of (7.5%, 12.5% and 17.5%) to the whole weight of the mixture. The experimental results showed …

Removal Of Cr (Vi) And Cu (Ii) Ions From Synthetic Wastewater By Solar Photocatalytic Reactor, Mohammad Abid, Luma Mahmood, Noor Hamza, Sukaine Mohamed Mohamed

Engineering and Technology Journal

Heavy metal ions in wastewater have promoted increasing concern on environmental and health risks. The present work was devoted to investigate the feasibility of utilizing solar light to degrade Cr (VI) and Cu (II) ions in synthetic wastewater. The effect of the key process parameters on the quality of product was studied by varying the pH (3, 5, 7, 9, and 11), H2O2 (50, 100, 200, and 300 mg/L) and TiO2 loading (0.9, 1.3, and 1.7 g/L). Experimental results revealed that after 120 min of solar illumination the highest reduction of Cr (VI) ions was 97.0% obtained under (pH = …

The Effects Of Cyanobactrum Chroococcus Minor And Oscillatoria Amonea On Seed Germination Of Plant Vigna Radiate, Ghaidaa Alrubaie

Engineering and Technology Journal

Cyanobacteria are prokaryotic photosynthesis algae able to produce toxins and that cause problems in water quality, agriculture and aquatic organisms As well as concerns about the public health for humans. Among the cyanobacterial toxins, microcystins (MC) are the most common. In this study, Identification and Isolation of blue green algae Chroococcus minor and Oscillatoria amonea Belonging to the cyanobacteria division, BG-11 media were used to cultivation. In suitable laboratory conditions (25 ±2C°, 260μE/m2/sec) for 16:8 hrs. Light: dark. The culture was harvested after 30 days and determine the effects of the extracellular of both algae on seed germination for Vigna …

Comparison Between The Biological Activity Of Agaricus Bisporus Fruiting Bodies And Albizzia Lebbeck Leaves Extract Against Different Pathogenic Microoganisms, Israa Al-Temimay

Engineering and Technology Journal

In this study, antibacterial activity of ethyl acetate extracts of Agaricusbisporus fruiting bodies and ethyl acetate extracts of Albizzia lebbeck leaves wereexamined in-vitro with (2) two pathogenic bacteria (Escherichia coli and Proteus)and yeast (Candida albicanus), following agar well diffusion method usingdifferent concentrations (25, 50, and 100μl). The extracts of Agaricus bisporus andAlbizzia lebbeck were showed potent antimicrobial activity against tested bacteriaand yeast. Agaricus bisporus fruiting bodies extract was showed the highestinhibitory effect versus growth of bacteria and yeast were tested in this study. TheE. coli and Proteus were found to show large sensitivity to the extracts of Agaricusbisporus with 12 …

Evaluation Of Purified Urease Activity From Proteus Mirabilis Using Iron Oxide Nanoparticles And Measurement Of Urea Concentration In Blood, Hadeel Dawud, Entesar Ali

Engineering and Technology Journal

The activity of urease purified from Proteus mirabilis bacteria wasestimated using gamma iron oxide nanoparticles (γ-Fe2O3) which were obtained asstandard in size (20- 40)nm, purity 99%. The enzyme activity was estimated byincubating the pure enzyme with various concentrations of nanoparticles rangedbetween (1- 6) μg/ml. The results indicates a decrease in enzymatic activity withincreasing of nanoparticles concentration. After that, the concentration of bloodurea was measured using urease obtained from a standard kit, urease purified fromProteus mirabilis and the urease- gamma iron nanoparticles solution. Thecomparison was then made among the results of urea concentrations by statisticalanalysis using T-test. The results showed that …

Hydraulic Parameters Of Groundwater Aquifers In Khan-Al-Baghdadi Area, Hussein Al-Sudani

Engineering and Technology Journal

The mainly objective of groundwater studies is assessment the physicalcharacterizations of water-bearing layers. Conducting and analyzing aquifertests is one of the most efficient ways to assessment these characterizations. Theaim of this research is to carry out hydrogeological investigation in Khan Al-Baghdadi area within Anbar Governorate in the west of Iraq to evaluatehydraulic properties of the most important groundwater aquifers in order toachieve optimum use of groundwater in term of sustainable water management byusing Cooper-Jacob and Theis Recovery Test methods to calculate transmissivityand storage coefficient after field investigation of aquifers extended in the areawhere geographical position, elevations, static water levels, depths, …

Easy And New Chemical Synthesis Of Stable Nano Sliver Using Propylene Glycol And Glycerin As Reducing Agents, Abdulah Mohammed, Sarab Mahmood

Engineering and Technology Journal

In this present work we have synthesized stable silvernanoparticles (Ag-NPs) by chemical reduction with aqueous solutions ofsilver nitrate (i) propylene glycol (ii) glycerin as reducing agents and guargum as a stabilizer. The reaction were done at room temperature and atpH=8. Systematic characterizations of the Ag-NPs were done using UV-Vis,zeta potential analysis, X-Ray diffraction (XRD), AFM and SEM whichreveal stable Ag-NPs. These measurements indicate that the particles aremostly spherical in shape. The UV-Vis spectra of the result solution of Ag-NPs show an absorption peak at 412 nm and 424 nm for using propyleneglycol and for using glycerin respectively. These color occurring …

Corrosion Inhibition Of Mild Steel In Hydrochloric Acid Solution By An Isatin-Aniline Compound, Khalida Al-Azawi

Engineering and Technology Journal

Recently the researchers go to the eco-friendly corrosion inhibitors.In the present investigation, isatin which found in many plants, Isatis tinctoria,Calanthe discolor and Couroupita guianensis has been used as corrosioninhibitor. An isatin-aniline compound, namely ethyl 4-amino-N-(3-isatinyl)benzoate (AIB), was successfully synthesized in high yield and its inhibitionimpact on corrosion of MS (mild steel) in hydrochloric acid as corrosivesolution was examined via weight loss and Scanning electron microscopetechniques. The results acquired appeared that AIB has employ perfect as acorrosion inhibitor at low concentrations towards mild steel in HCl bath. Theimpact of temperature on the corrosion behavior of MS in corrosive bath withpresence of …

Experimental Study For The Effects Of Crystalline Agents On Properties Of Glass-Ceramic Coating, Ibtihal Mhmood, Ahmed Zainulabdeen, Jabbar Mohmmed

Engineering and Technology Journal

In this work, four series of glass-ceramic coatings were developed and applied by using the dipping technique to cast iron sheets. The influence of different types of crystallization agents (Li2O, TiO2, ZrSiO4, and CaO.Al2O3.2SiO2) was investigated in relation to the mechanical features of the coatings. The resultant coating is characterized using X-ray diffraction analysis. The properties of micro-hardness and adhesion strength are evaluated using suitable standard tests. The X-ray analysis of resultant coatings showed the existence of some of crystalline phases formed depending on the type of the crystallization agent. The results also indicated that the coating properties were strongly …

Preparation, Characterization And Utilization Of Polyacrylamid-Kaolin Composite In The Removal Of Nickel Ions From Water, Mahmood Barbooti, Raghad Hilal, Balkees Al-Dabbagh

Engineering and Technology Journal

A composite material of polymeric matrix Polyacrylamid (PAM) that is reinforced by a certified clay mineral of the Iraqi kaolinite at several weight ratios (10, 20, 30, 40 and 50%) was prepared by mixing the polymer water solution with the clay followed by hand molding method. Some of the mechanical properties of the prepared composite such as tensile strength, impact and hardness Shore A were studied to improve the mechanical capability to be as a sorbent for the removal of heavy metals from water.The results showed an improvement in the mechanical properties as the kaolin content was increased. The powdered …

Analytical Characterization And Antimicrobial Activity Of Bismuth Nanoparticles Synthesized Using Laser Ablation Technique, Abdul Hadi Judran

Engineering and Technology Journal

Bismuth nanoparticles were synthesized using laser ablation technique by focusing solid bismuth target in distilled deionized water by 1064 nm and 532 nm laser radiations generated by Q-switched pulsed Nd:YAG laser, respectively. Synthesized nanoparticles were characterized using UV–Vis spectrophotometer, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Atomic Force Microscopy (AFM). The XRD pattern of the synthesized sample was indexed as. UV–Vis spectrophotometer indicated that the peak of absorption spectra of bismuth nanoparticles located in UV-region (230 nm) and increased towards IR region with increase laser energy and laser wavelength. SEM and TEM exhibited spherical shape …

Seasonal Variation Of Residual Aluminum Concentration In Drinking Water, Layla Alwan, Ayat Mahdi

Engineering and Technology Journal

Data for aluminum concentration in Baghdad raw and drinking water have been taken from Baghdad Mayoralty for the period of the year (2005-2006) and for six water treatment plants (Al-Karkh, East Tigris, Al-Wathba, Al-Karama, Al-Qadisia and Al-Dora). The available data were analyzed by using statistical programs like (spss, statistica, grapher and excel) .Relation with water quality parameters was obtained like relation with pH and temperature. From the study the pH value was found to be ranged between (7.45-7.85) in supplied water for minimum aluminum residual. From the contour plot results show that an equation has been concluded which connect concentration …

Effects Of Electrode Geometry On Energy Transfer Characteristics Of Electrolytic Cells Used For Production Of Metallic Nanostructures, Noor Naji

Engineering and Technology Journal

In this work, the effects of geometries of stainless steel electrodes used inelectrolytic analysis cells were studied. These cells are used for preparation ofmetallic nanostructures. These effects can be observed by studying energy transfercharacteristics of electrolytic cell as the electric field and current density aredetermined by its electrode geometry. Four electrode geometries were used in thiswork.

Text File Hiding Randomly Using Secret Sharing Scheme, Yossra Ali, Hussein Mankhi

Engineering and Technology Journal

Exchange of information through the channels of communication can beunsafe. Communication media are not safe to send sensitive information so it isnecessary to provide the protection of information from disclosure to unauthorizedpersons. This research presented the method to information security is donethrough information hiding into the cover image using a least significant bit (LSB)technique, where a text file is encrypted using a secret sharing scheme. Then,generating positions to hiding information in a random manner of cover image,which is difficult to predict hiding in the image-by-image analysis or statisticalanalyzes. Where it provides two levels of information security through encryptionof a text …

Design A Fuzzy Pid Controller For Trajectory Tracking Of Mobile Robot, M.J. Mohamed, M.Y. Abbas

Engineering and Technology Journal

In this paper, a trajectory tracking control for a non-holonomic differential wheeled mobile robot (WMR) system is presented. A big number of investigations have been used the kinematic model of mobile robot which is a nonlinear model in nature, thus a hard task to control it. This work focuses on the design of fuzzy PID controller tuned with a firefly optimization algorithm for the kinematic model of mobile robot. The firefly optimization algorithm has been used to find the best values of controller's parameters. The aim of this controller is trying to force the mobile robot tracking a pre-defined continuous …

What Drives Consumers To Use Insurtech Apps? The Role Of Insurance Literacy, Jia Chun Chia, Hui Shan Lee, Bik Kai Sia

International Journal of Management, Finance and Accounting

Although financial technology has spread worldwide, the adoption of InsurTech in Malaysia is still low because of the knowledge-action gap, in which people continue to use traditional agents. This study examines the factors that determine behavioral intention to use InsurTech apps by incorporating the Unified Theory of Acceptance and Use of Technology (UTAUT) and including a novel insurance literacy factor. A cross-sectional quantitative research design was adopted, and 406 valid responses were gathered from 406 Malaysian Generation Z individuals and analyzed using partial least squares structural equation modelling (PLS-SEM). The findings indicate that the model explains 58% of the variance …

Scrolling, Following, Deciding: The Hidden Power Of Digital Influence On Wise Financial Decision, Nur Fatihah Muhamad Irwan, Wan Rasyidah Wan Nawang

International Journal of Management, Finance and Accounting

The effect of social media and digital influencers on financial behaviours has been well documented, but there is yet any solid evidence of their role in driving wise financial decision-making among Malaysians in particular. This study hence sets out to examine the impact of social media engagement and parasocial interaction in shaping financial attitudes, and the influence of financial attitude, subjective norms, and perceived behavioural control on the intention to practice wise financial decision-making. The mediating role of financial attitude was also studied, specifically in the link between social media engagement, parasocial interaction, and intention. A total of 250 Malaysian …

Impact Of Environmental, Social, And Governance (Esg) Practices On The Stability And Profitability Of Financial Institutions In Malaysia, Sharifah Najihah Syed Ishar, Sharifah Fairuz Syed Mohamad, Nurul Sima Mohamad Shariff, Mazlynda Md Yusuf

International Journal of Management, Finance and Accounting

This study examines how Environmental, Social, and Governance (ESG) activities affect the stability and profitability of Malaysian financial institutions, in light of the country's growing emphasis on sustainable finance. Using annual data from 2014 to 2024, the study focuses on three main objectives: assessing whether stronger ESG practices enhance financial stability, identifying the most influential ESG pillar among environmental, social, and governance components, and evaluating whether ESG performance affects profitability. This study employs random-effects panel regression with robust standard errors, yielding empirical evidence relevant to Malaysia’s dual banking landscape. The results show that stronger ESG performance raises the stability of …

Metaphors And Socio-Cultural Values In China's Press Statement Translation, Adinda Natassa Valentine Hutabarat

Paradigma: Jurnal Kajian Budaya

In real practice, political text translations are in line with a country’s main foreign policies. Thus, an in-depth understanding on communicative strategies employed in translating political texts, e.g. press statements, is essential. The paper analyses the translation of press statements from the Source Text (Mandarin Chinese) into the Target Texts (English and Indonesian). To elaborate, this study uses van Dijk’s Political Discourse Analysis at the macro (contexts) and micro (texts) levels. By considering Newmark’s equivalent translation concept, as well as metaphor and annotated translations, the analysis reveals that the translation from China’s perspective uses metaphors and China’s socio-cultural values within …

Strategi Penerjemahan Lirik Lagu Album The Satanist Karya Behemoth Oleh Platform Musixmatch Dari Bahasa Inggris Ke Dalam Bahasa Indonesia, Saiyidinal Firdaus Sf

Paradigma: Jurnal Kajian Budaya

This study examines the translation strategies employed by Musixmatch in translating the lyrics of The Satanist by Behemoth from English into Indonesian. Using a qualitative descriptive case study approach, the research analyzes nine translated songs through the theoretical frameworks of Peter Newmark and Vinay and Darbelnet, while also incorporating contemporary perspectives from digital translation studies, machine translation, and ideological translation. The findings indicate that Musixmatch predominantly applies literal translation strategies in transferring religious terminology, symbolic expressions, and intertextual references. Although this approach enables rapid semantic transfer and general comprehension, it frequently results in the reduction of aesthetic, liturgical, symbolic, and …

Analysis Of The Determinants Of Buy-Now-Pay-Later Payment Mode Among Malaysians In Klang Valley, Wai Zhi Tay, Chi Hau Tan

International Journal of Management, Finance and Accounting

The Buy Now, Pay Later (BNPL) service has become increasingly popular in Malaysia in recent years, especially in the Klang Valley. The BNPL service offers consumers a more convenient payment method and access to credit, raising concerns about increased household debt and financial vulnerability. In this study, this paper used financial literacy, perceived risk, credit attitude, and economic vulnerability to examine which factors influence the intention to use the BNPL payment mode. The Theory of Planned Behaviour (TPB) is used to explain the factors influencing consumers’ intention to use BNPL services. This study adopts a quantitative research design and collects …

Pricing Under Pressure: Cost Volatility, Customer Affordability And Value Perception In Micro And Small Food Businesses, Fadhlur Rahim Azmi, Nursyahwani Mohd Sukri, Maciej Woźniak, Haslinda Musa

International Journal of Management, Finance and Accounting

This study examines how micro and small food businesses make pricing decisions under cost volatility, customer affordability pressure, and value perception constraints. Drawing on semi-structured interview evidence from 12 Malaysian micro and small food and beverage businesses, this study adopts an interpretive qualitative multiple-case design. The data were analysed using thematic analysis and cross-case comparison, with dynamic capabilities as an interpretive lens. The findings show that pricing is not a simple cost-plus calculation or the application of a single pricing method. Instead, micro and small food businesses practice adaptive hybrid pricing by combining cost awareness, competitor reference, affordability judgment, value …

The Equipp Framework: Achieving Quality Through Lnterprofessional Synergy, Lynn Gallagher-Ford, Lee Ann Strait, Cynthia D. Beckett, Karey Dufour

International Nursing Research Congress (INRC)

The purpose of the workshop is to introduce interprofessional clinicians, evidence-based practice (EBP) experts, and process improvement (Pl) experts to a new framework titled: Evidence-based Quality in Practice and Process Framework (EQUiPP). It is uniquely designed to provide structure and guidance to synergistically align EBP and Pl work to effectively improve and sustain outcomes. Use of the EQUiPP Framework decreases the frequency of implementing ineffective changes, saves time and money, and improves care and outcomes. The EQUiPP Framework integrates evidence-based practice and process improvement methods for sustained quality.

The content of the workshop will guide healthcare interprofessionals to effectively plan …

Theatre Practice As A Restorative Medium For Collective Memory In The Collaborative Performance ``Install Ulang: Surawana Lewat Jalan Memutar'', Rifqi Haekal Amanullah, Wahyu Novianto

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

This study examines the socio-cultural estrangement between members of the Canggu Village community and the reliefs and spatial environment of Surawana Temple. It explores how theatrical practice can serve as a performative medium for reactivating and reinterpreting collective memory associated with a historical site embedded in everyday life. Focusing on the collaborative performance Install Ulang: Surawana Lewat Jalan Memutar, the study employs artistic research with a practice-based approach, with the lead author acting as director and artistic facilitator. Data were collected through interviews, observation, literature review, workshops, artistic exploration, and post-performance reflection involving temple caretakers, farmers, archaeologists, and local …

Court Reform And State Constitutions, Bryna Godar, Miriam Seifter

Northwestern University Law Review

State legislatures regularly propose and enact laws that seek to shape the substantive outcomes of state courts. These maneuvers, including court-packing, jurisdiction-stripping, and more creative changes to judicial selection or authority, would amount to legal earthquakes at the federal level. At the state level, these efforts often receive virtually no attention.

This Essay brings the potent category of outcome-shaping state court reform measures into focus and evaluates it as a question of state constitutional law. We argue that state constitutions, organized around principles of popular sovereignty, do not bar measures that align state courts with popular preferences or the public’s …

Material Transformation And Cultural Aesthetics In Javanese Keris Pamor: A Perspective On Sustainable Art, Kuntadi Wasi Darmojo, Iwan Budi Santoso, Ippei Suzuki

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

This study investigates the transformation of discarded motorcycle shock absorber material into an alternative material for producing pamor in traditional Javanese keris craftsmanship from the interdisciplinary perspectives of material culture, visual aesthetics, and sustainable craft practice. A practice-based research approach combined with descriptive qualitative methods was employed through material exploration, traditional forging experiments, pamor formation, keris production, visual observation, and cultural interpretation. The findings demonstrate that discarded motorcycle shock absorber material can be incorporated into the traditional forging process to produce stable, layered pamor patterns. The resulting pamor exhibited black, dark gray, and dull silvery-white tones, a layered surface structure, …

An Initial Formulation Of A Tactile-Based Art Creation Method From A Low-Vision Artist's Relief Painting Practice At Yayasan Teratai Bali, Ida Bagus Komang Sindu Putra, I Wayan Adnyana, I Wayan Karja, I Wayan Sujana

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

This article examines the relief painting practice of one low-vision artist at Yayasan Teratai Bali as the basis for an initial formulation of a tactile-oriented visual art creation method. It addresses a methodological gap in inclusive art education and disability art studies, where blind and low-vision individuals are often discussed as learners, participants, or audiences, while their own procedures for making artworks receive less attention. Using an instrumental case study with a descriptive-interpretive orientation, data were collected through repeated observation, informal conversational interviews, artwork and process documentation, close observation of textural details, and contextual workshop documentation. Recurring actions and statements …

A Visual Analysis Of The Color Variety In Pekalongan Hand-Drawn Batik From 1910 To 2015, Christophera Ratnasari Lucius, Yanuar Ramadhan, Ahmad Fuad

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

UNESCO has recognized Indonesian Batik's variety of designs and colors as an intangible cultural asset. Pekalongan batik, which is categorized as batik pesisir and is distinguished by its varied and expressive color combination, is one prominent example. Cultural acculturation influenced by China, Japan, India, and the Netherlands has created its visual identity. In order to create a culture-based color reference, this study will map the color variations of sixty hand-drawn Pekalongan batik pieces created between 1910 and 2015. Contemporary batik from current workshops and museum collections are among the research subjects. Digital photography was used for visual documentation, and Adobe …

Visual Aesthetic Structure In East Java Temple Reliefs: A Study Of Line, Plane, Proportion, And Rhythm, Marina Wardaya

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

The temple reliefs of East Java constitute one of the main categories of the material tradition that reflects not only the aesthetic taste of Javanese culture, but also its spiritual viewpoint and the socio-cultural milieu that characterized early Javanese society. In addition to being abstract visual texts, these reliefs also embody and represent cultural identity and values. The proposed research will analyze the visual structure of temple reliefs using a visual language (Bahasa Rupa) approach and visual design theory by examining the four principal visual components (line, plane, proportion, and visual rhythm) that together form the formal structure of these …

State Greenhouse Gas Emissions Disclosure Laws And The Dormant Commerce Clause: Leveraging The State Interest In Protecting Residents From Deception To Pass The Pike Balancing Test, Matthew Macphail

Northwestern University Law Review

Misleading corporate claims about greenhouse gas emissions pose a high risk of consumer deception, as there is currently no uniform federal standard governing how companies must measure or disclose those emissions. Without a national regulatory scheme, firms can selectively report, use inconsistent methodologies, or market vague “carbon neutral” claims, making it difficult for consumers to assess accuracy or compare companies’ representations.

In 2023, California introduced legislation requiring companies doing business in the state to disclose their greenhouse gas emissions in an effort to bring transparency to this area. But such state-level mandates face a constitutional obstacle: the Dormant Commerce Clause, …