Developed Method Research Articles

The Design and Implementation of Web Service for Laundry Service Payment at RAZ-Q Laundry Samarinda

The advancement of technology has facilitated access to information and various applications spanning desktop, web, and mobile platforms, becoming an integral part of everyday life. Among these platforms, websites are the most widely used. The web is widely used for business purposes. One of the common businesses is laundry services, which has become essential for individuals with busy schedules, such as workers and students. Busy daily activities make the need for clean clothes a top priority. However, the existence of many laundry service providers creates intense competition and difficulties for new consumers in finding the right service. This research examines a web services-based laundry service designed to help consumers find and book quality laundry services in their vicinity. It also provides process monitoring features and estimated time for clothes pickup. For laundry service owners, these web services offer opportunities to improve their business. This research uses the Waterfall method of software development, including the stages of analysis, design, coding, and testing. Use case diagrams were used to model the interaction between actors in the application, while class diagrams were used to describe the database structure. Activity and sequence diagrams were used to illustrate the flow of the application. The web interface is designed according to user needs. The result of this research is web services that can help consumers find and order laundry services easily and efficiently. Blackbox testing is conducted to ensure that all designed functions run properly. This application has the potential to help laundry service owners increase their income. Application development is done using Visual Studi Code with PHP Native programming language and MySQL as database management.

Traditional Methods in Crime Prevention and Moral Development: A Case Study of Ibiono Ibom Local Government Area, Akwa Ibom State, Nigeria

Traditional Methods in Crime Prevention and Moral Development: A Case Study of Ibiono Ibom Local Government Area, Akwa Ibom State, Nigeria

AN EXPERIMENTAL INVESTIGATION ON EFFECT OF CONCRETE BY USING PARTIAL REPLACEMENT OF EGG SHELL POWDER IN CEMENT ALONG WITH E-WASTE AS COARSE AGGREGATE

The imagination of a world without concrete isimpossible. It is a soul of infrastructures. Concrete is necessary to gain strength in structures. Conventional concrete, which is the mixture of cement, fine aggregate, coarse aggregate and water, needs curing to achieve strength. Concrete is a counterfeit material in which the totals both fine and coarse are reinforced together by the bond when blended with water. The solid has turned out to be so prominent and essential in view of its natural, concrete acquired an upheaval uses of cement. Concrete has boundless open doors for creative applications, plan and development methods. Its extraordinary adaptability and relative economy in filling extensive variety of necessities has made it is exceptionally focused building material. This project focuses on concrete, keeping importance to this, an attempt has been made to develop strength in concrete incorporating recycling waste. As part of the project cement partially replaced with egg shall powder and e- waste as coarse aggregate Comparative studies were carried out for compressive strength, tensile strength and flexural test for conventional and material concrete mixture introducing new recycling materials

DEVELOPMENT TRENDS OF THE HOSPITALITY INDUSTRY IN RURAL TOURISTIC AREAS OF SHARR MOUNTAIN

Tourism as a profitable industry every day needs to review new and functional methods for development. In this paper, we will present the trends that help the development of the hospitality industry in rural tourist areas, and the great opportunities for improving some types of tourism that are part of rural tourism. To have a professional operation, we must develop the hospitality industry, which includes accommodation, restaurants, recreation, etc. The tourist infrastructure as a key element has the accommodation, representing the tourist offered by rural tourism development. In addition, the strategic plan of several subtypes of rural tourism in the tourist area of Sharr Mountain will be presented. The main purpose of this scientific paper is to analyze all the trends in the development of the hospitality industry and the development of rural tourism, where based on them plans, strategies, and measures will be drawn up for the further development of rural tourism in Sharr Mountain.

A systematic review and meta-analysis of intervention studies on mathematics and science pedagogical content knowledge

Pedagogical content knowledge (PCK) has been considered as professional knowledge that teachers need to effectively instruct students. Empirical studies have been conducted to enrich teachers' PCK through interventions such as professional development programs. In this study, we conducted a systematic review and meta-analysis of studies about PCK interventions and their quantitative evaluation among mathematics or science teachers at the elementary and secondary education levels. We identified 101 effect sizes (42 for multiple group comparison designs and 59 for multiple time point comparison designs) and found that the interventions had a positive effect in both designs. The results of the meta-regression analysis showed that in the multiple group design, the effects differed by intervention target, with higher scores for the PCK intervention than for the CK-only intervention, and in the multiple time point design, the effects differed by subjects treated, with higher scores for the science materials than for the mathematics materials. These results not only demonstrate the average effectiveness of previous studies aimed at improving teachers' PCK but also provide insights into effective designs for professional development methods that promote PCK acquisition.Systematic review registrationhttps://osf.io/vf4hq/?view_only=068483e4e82c42cd994e2c8174bd0a64.

A marker-based method for visual-inertial initialization

Accurate and robust initialization is significant for visual-inertial simultaneous localization and mapping (VI-SLAM). Existing methods solve VI-SLAM initialization based on visual information. However inertial measurement unit (IMU) parameter estimation performed underwater is subject to two major limitations. First, IMU preintegration error accumulates over time, resulting in reduced accuracy. Second, it is difficult for robots to achieve sufficient movement underwater, which affects the reliability of initialization results. For a better balance between the efficiency and accuracy of VI-SLAM initialization, this study proposes a VI-SLAM initialization method using a designed marker calibration device. First, we utilize both marker points and ORB feature points for a fast and robust visual trajectory estimation with real motion scale, and we estimate the gravity direction using the marker calibration device. Second, the IMU trajectory is aligned with the trajectory, and the IMU parameters are solved using the initial gravity direction. Experiments verify the effectiveness of our developed method for improving the accuracy and efficiency of the VI-SLAM initialization. The code is available at https://gitee.com/litseaak/mmorb.

IDENTIFICATION OF AN ARBITRARY MOVING AXISYMMETRIC LOAD ACTING ON A CYLINDRICAL SHELL

Various types of external non-stationary loads can act on various structural elements and cylindrical shells of finite length in particular distributed and concentrated, stationary and moving load. When using various external load identification methods, the type of external load is usually known. In prac- tice this is not always the case. The purpose of the study is to develop a method for identifying an arbitrary axisymmetric load acting on an elastic cy- lindrical shell of finite length, which can be used to identify a moving load. To model the non-stationary load of a cylindrical shell, a system of differ- ential equations of the refined Timoshenko theory for medium thickness shells was used. The solution to this system of differential equations is ob- tained by expanding the unknown functions into Fourier series and applying the integral Laplace transform. The solution of the inverse problem was obtained using the theory of integral equations and the Tikhonov regularization method. As a result of the study, a solution of the inverse problem of solid mechanics to identify an arbitrary axisymmetric non-stationary load was obtained. A numerical experiment was carried out to use the developed method to identify a moving non-stationary load acting on a simply supported cylindrical shell of medium thickness. The simulation results indicate a fairly accurate identification of both the change in time and the distribution along the shell of a non-stationary axisymmetric moving load. A method has been developed for identifying an external non-stationary load randomly distributed along a cylindrical shell, which makes it possible to identify a moving load without preliminary information about the type of this load. The developed method allows us to reproduce moving non-stationary loads, which are often encountered in practice, and expand it to other types of structural elements.

Fast and Simple Extraction for LCMSMS Analysis of Oxytetracycline Residue in Pork

Pork is very popular as an animal-base protein source of peoples in the Lao PDR. The pig growth promotion, treatment and prevention of diseases frequently relies on the use of antibiotics. In terms of food safety, the analysis of antibiotic residue in pork would be therefore important. Oxytetracycline (OTC) is one of antibiotics used in the pig husbandry. In this study, a fast and simple extraction and analysis method for determining OTC residue in pork was developed. Briefly, 1.0 g of homogenized pork sample in a 50mL-centrifµge tube was extracted with 10 mL of CH3OH: H2O mixture (9:1 ratio) assisted with vortex for 10 min, treated with QuEChERS salt and subjected to centrifugation at 5000 rpm. The methanolic extract (1.5 mL) was then cleaned up with 2mL-dSPE tube (containing MgSO4, PSA, and C18), filtered through syringe filter 0.45 micron and analyzed with ESI-LCMS/MS optimized and operated in MRM positive mode. Calibration was prepared with OTC standard solutions (5-100 ng/g). The analytical method was validated with triplicated recovery tests at a spiked level of 50 ng/g. The results unveiled that the method gave very good recovery of 88.7±3.24%. The limits of detection (LOD) and quantification (LOQ) were achieved with 0.36 ± 0.02 and 1.19 ±0.04 ng/g. In consequence, the developed method would be suitable for OTC determination in pork samples.

Educational Revolution : Digital Project-Based Rotation Learning (DPBRL) Model to Improve Students' Critical Thinking Skills

The research aimed to develop and assess the effectiveness of the Digital Project-Based Rotation Learning (DPBRL) model in enhancing students' critical thinking skills. The study employed a research and development method, using a non-equivalent control group design during the pilot phase, a research method used to describe and measure the characteristics of populations or phenomena systematically using numerical data, involving 83 undergraduate students from Mulawarman University Guidance and Counseling Study Program, divided into two heterogeneous classes. Validation of the DPBRL model was conducted by experts in learning model design, materials, and media, with data collected through validation sheets, interviews, document analysis, questionnaires, observation, and documentation. The data was analyzed using descriptive technique and Independent Samples t-test. The results demonstrated that the DPBRL model effectively improved students' critical thinking skills and digital literacy, particularly through the use of digital modules with Flipbook Maker. The model’s rotation structure and presentation stage provided a structured learning approach, highlighting the importance of feedback. The study concluded that integrating technology and collaboration in project-based learning through the DPBRL model significantly benefited students’ critical thinking, digital literacy, and teamwork, offering a comprehensive and effective learning experience.

PENGEMBANGAN MEDIA KOMANTATIKA (KOMIK PENGOLAHAN DATA MATEMATIKA) MELALUI PENDEKATAN RME UNTUK MEMANTIK KEMAMPUAN PEMAHAMAN KONSEP SISWA KELAS IV SDIT AL-AKHYAR

Learning media is an effective solution for use in learning. Based on the results observations and interviews conducted with teachers and students of class IV SDIT Al-Akhyar, there is a lack of use of media in Mathematics learning. Teachers use lecture methods that students are less interested in. This research uses the Research and Development method with the ADDIE model. Based on research results, the experimental class pretest average was 61.67% with the highest score of 85 and the lowest of 35. The experimental class posttest average was 87.78% with the highest score of 97.5 and the lowest of 75. The control class pretest average was 54.65% with the highest score of 87.5 and the lowest of 20. The control class posttest average was 77.84% with the highest score of 97.5 and the lowest of 50. The validity of media experts is "Very Valid" with Aiken's V 0.92222 and the validity of material experts is "Valid" with Aiken's V 0.7778. The practicability of “Very Practical” media is 90%. The normality for the experimental class pretest sig 0.098 > 0.05 and posttest sig 0.095 > 0.05, normally distributed data. While the control class sig pretest 0.200 > 0.05 and sig posttest 0.199 > 0.05, normally distributed data. Paired Sample T-test for the experimental class sig value (2-tailed) 0.000 < 0.05 and the control class sig value (2-tailed) 0.000 < 0.05, then Ha is accepted and H0 is rejected. The experimental class obtained an N-Gain percent of 64.8377 "Quite Effective" and the control class obtained an N-Gain percent of 50.3651 "Less Effective".

A novel target detection method with dual‐domain multi‐frequency feature in side‐scan sonar images

AbstractSide‐scan sonar (SSS) detection is a key method in underwater environmental security and subsea resource development. However, many detection approaches primarily concentrate on tracking the evolution path of optical image object detection tasks when using acoustic images, resulting in complex structures and limited versatility. To tackle this issue, we introduce a pioneering dual‐domain multi‐frequency network (D2MFNet) meticulously crafted to harness the distinct characteristics of SSS image detection. In D2MFNet, a novel method for optimizing and improving the detection sensitivity in different frequency ranges called multi‐frequency combined attention mechanism (MFCAM) is proposed. This mechanism amplifies the relevance of dual‐domain features across different channels and spaces. Moreover, we introduce a dual‐domain feature pyramid network (D2FPN) significantly augments the depth and breadth of feature information in underwater small datasets. The methods offer plug‐and‐play functionality with substantial performance enhancements. Extensive experiments are conducted to validate the efficacy of the proposed techniques, and the results showcase their state‐of‐the‐art performance. MFCAM improves the mAP by 16.9% in the KLSG dataset and 15.5% in the SCTD dataset. The mAP of D2FPN was improved by 8.4% in the KLSG dataset and by 9.8% in the SCTD dataset. The code and models will be publicly available at https://dagshub.com/estrellaww00/D2MFNet.

Development of an E-Handbook Based on Research on the Medicinal Plant Premna serratifolia as The Natural Resources of West Kalimantan for High School Students

This research aims to develop a comprehensive e-handbook, containing research-based information on the medicinal plant Premna serratifolia as the natural resources of West Kalimantan for high school students. This research used a research and development (R&D) method with an ADDIE model and was conducted in three high schools in West Kalimantan. Research instruments include validation instruments and student response questionnaires. The research data were analyzed using quantitative data analysis. Expert validators in content, media, and language assessed the e-Hanbook, resulting in validation percentages of 85.4% for content, 82.6% for media, and 81.5% for language. The practicality of the e-Hanbook was tested through initial and final field trials, achieving percentages of 80.8% and 87.2% respectively. Consequently, the research suggests that the e-Hanbook on Premna serratifolia medicinal plants is highly suitable and practical for high school students.

Development of Flipbook-Based E-Module Integrated with External Features to Facilitate Student Self-Learning

This study aims to develop a flipbook-based E-Module integrated with external features to facilitate student self-learning. This research uses a Research and Development (R&D) method with an ADDIE model, which consists of five stages, i.e., analyze, design, develop, implement, and evaluate. The needs analysis of teaching material development was conducted through surveys, interviews, and observations. The validity test used a validation instrument filled out by three experts. Practicality was measured using the results of a questionnaire filled out by students as respondents. The data collected were then analyzed quantitatively. The results showed that the flipbook-based E-Module integrated with external features was categorized as very valid with a percentage of 91.09% and very practical with a score of 90.14%. Flipbook-based E-Module facilitated student self-learning in accordance with its character, namely self-instructional, self-contained, stand-alone, adaptive, and user-friendly characteristics.

Development of Augmented Reality Learning Media to Introduce Musical Instruments for Deaf Elementary School Student

This research aims to develop Augmented Reality learning media for deaf children at the elementary school level in recognizing musical instruments and measuring their effectiveness on learning outcomes. The research method used is research and development (R&D) and uses the Multimedia Development Life Cycle development method. The effectiveness of the media was tested using pretest-posttest. Data analysis techniques use the parametric statistical test. The results of testing by media and content experts concluded that the application was declared suitable for use as a learning medium. From the beta test, it was discovered by 33 deaf students that Augmented Reality learning media was well received. The t-test comparison test shows that there is a difference, which means that the use of Augmented Reality learning media as a medium for introducing musical instruments to deaf students has a positive impact on learning outcomes.

Preparation and application of a pseudo-templated multi-monomer aflatoxins imprinted polymer.

Afunctional material was developedwith specific recognition properties for aflatoxins for pre-processing enrichment and separation in the detection of aflatoxins in Chinese herbal medicines. In the experiment, ethyl coumarin-3-carboxylate, which has a highly similar structure to the oxonaphthalene o-ketone of aflatoxin, was selected as a pseudo-template, zinc acrylate, neutral red derivative, and methacrylic acid, which have complementary functions, were selected as co-monomers to prepare a pseudo-template multifunctional monomer molecularly imprinted polymer (MIP). The MIP obtained under the optimal preparation conditions has a maximum adsorption capacity of 0.036mg/mg and an imprinting factor of 3.67. The physical property evaluation of the polymers by Fourier infrared spectrometer, scanning electron microscopy, pore size analyzer, thermogravimetric analyzer, and diffuse reflectance spectroscopy showed that the MIP were successfully prepared and porous spherical-like particles were obtained. The synthesized polymer was used as a solid-phase extraction agent for the separation of aflatoxins from the extract of spina date seed. The linear range of the developed method was 10-1000ng/mL, the limit of detection was 0.36ng/mL, the limit of quantification was1.19ng/mL, and the recoveries of the extracts at the concentration level of 0.2μg/mL were in the range 88.0-93.4%, with relative standard deviations (RSDs) of 1.97% (n). The results showed that the preparation of MIPs using ethyl coumarin-3-carboxylate as a template was simple, economical, and convenient. It is expected to become a promising functional material for the enrichment and separation aflatoxins from complex matrices.

A Novel Method for Development and Validation of the Degradation Products Analysis of N-Carbamylglutamate with UHPLC by Using Design of Experiment Approach

A Novel Method for Development and Validation of the Degradation Products Analysis of N-Carbamylglutamate with UHPLC by Using Design of Experiment Approach

Vision Inspection Method for the Quality Assessment of Paint Coatings on Glassware

Image analysis is becoming increasingly popular in many industries. Its use is perfect for, among other things, assessing the quality of products on or off the production line. Highly automated, high-performance systems can be used for this purpose. However, there are situations in which automated vision systems cannot be used on the production line due to the specific nature of the process. One such situation is testing the resistance of paint applied to glass when washing in automatic dishwashers. It is carried out outside the production line, and typical production vision systems are not used here. An attempt was made to develop a cheap and easy-to-implement research method enabling quantitative measurement of paint loss on glass when testing the coating’s resistance to automatic washing. For this purpose, analysis of images taken during the study was carried out. The developed method is based on taking a series of photos of the tested object between each stage of the wash resistance test. The obtained photographic material is then analyzed by measuring the size of paint losses expressed in the number of pixels. Then, the percentage of paint loss is calculated. This method is cheap to implement and highly accurate. Statistical analysis of the results confirmed the method’s accuracy at 98%.

Optimizing a Facile and Rapid Method for Extraction of Flavonoids from Matricaria Chamomilla Using TiO2 Nanoparticles

AbstractFlavonoids are known as valuable natural compounds and Chamomile is a rich source of flavonoids. The extraction efficiency of flavonoids is affected by various conditions. So it appears necessary to develop a practical method for the extraction of these compounds. In this study, we attempted to extract the phenolic compounds from chamomile using the surface capacity of titanium oxide nanoparticles (TiO2). UV and FT‐IR spectroscopy was used to determine the accuracy of the binding. The HPLC‐PDA technique was used for the quantification of phenolic compounds and the recovery test result was 84 %. Determining the antioxidant, phenolic, and flavonoid contents suggested that the developed method is successful for the extraction of phenolic compounds. The influential extraction parameters after optimization consisted of the pH of 7, extraction temperature of 25 °C, extraction time of 15 min, and TiO2 nanoparticle concentration of 4 mM. The method seems acceptable for industrial applications.

Rancang Bangun Website Sekolah Dasar Negeri 2 Tlogorandu

The purpose of this study is to design a school profile website to be instructed by a school engineer. The study was conducted in SD Negeri 2 Tlogorandu and aimed to develop a website as a medium for widespread dissemination of information that plays an important role in improveing productivity, especially in the field of education. The statistics accumulating method used was qualitative and used the Rapid Application Development (RAD) method. The Study also included a SWOT (Strength, Weakness, Opportunities, Threats) analysis method. The results of this study showed that the design and development of a school website can help schools disseminate information in a more convenient and efficient manner, especially about the admission of new students. According to the result, the website has been successfiully created to allow schools to easily transfer and manage the latest statistics or information, thusly meeting the necessity of the school.

Suspended Load Estimation in Data Scarce Rivers

AbstractSediment rating curves (SRCs) are tools of satisfactory reliability in the attempt to describe the sediment regime in catchments with limited or poor-quality records. The study valorised the most suitable SRC development method for the estimation of the coarse suspended sediment load at the outlet of nine Mediterranean sub-watersheds. Four established grouping techniques were assessed, to minimize the uncertainty of the results, namely simple rating curve, different ratings for the dry and wet season of the year, hydrographic classification, and broken line interpolation, at three major Greek rivers (Aliakmon, Acheloos – upper route, Arachthos). The methods’ performance was benchmarked against sediment discharge field records, utilizing statistical measures and graphical analyses. The necessary observations were conducted by the Greek Public Power Corporation. The results were site/station dependent, and no methodology emerged as universally accepted. The analysis designated that the simple rating curve performs best at the cross-sections Moni Ilarion, Moni Prodromou, and Arta bridge, the different ratings for the dry and wet season of the year at Grevena bridge and Gogo bridge, the hydrographic classification at Velventos and Plaka bridge, and the broken line interpolation at Avlaki dam and Tsimovo bridge. In this regard, the study advocates the use of multiple SRC methods. Despite its limitations, the method merits a rather simple and cost-effective generation of a (continuous, detailed, sufficiently accurate) synthetic suspended sediment discharge timeseries, with high interpolating, extrapolating and reproducibility potential. The success of the application could benefit, among others, water quality restoration and dam management operations.