Abstract:This study aims to develop a technically compliant and economically feasible design for a Restricted Security Area (RSA) perimeter fence surrounding Substation 7, the Chiller facility, and the Ground Water Tank (GWT) at…
Kertajati International Airport. These facilities constitute critical operational infrastructure supporting electricity distribution, terminal cooling systems, and water supply, including fire suppression reserves. Field observations identified the absence of a regulation-compliant perimeter protection system, exposing the utility cluster to unauthorized access and operational risk. The research employed a quantitative descriptive–analytical approach integrating field measurement, engineering design modeling, volume computation, and cost estimation based on the 2024 Majalengka Regional Standard Unit Price. Technical evaluation referred to national aviation security regulations and ICAO Annex 17 principles. A BRC (British Reinforced Concrete) fence system with a total height of 3.20 meters (2.40 m fence body and 0.80 m concertina wire) was proposed. The structural configuration includes reinforced concrete isolated footings, tie beams (sloof), and a bottom plinth beam to ensure lateral stability and anti-climb resistance. The total perimeter length of 313.74 meters ensures complete enclosure of the critical facilities. The estimated total project cost amounts to IDR 509,553,000.00, including VAT. The results demonstrate that the proposed design is structurally reliable, regulation-compliant, and economically justified within a risk mitigation framework. The study contributes a replicable engineering and financial planning model for strengthening airport critical infrastructure protection and enhancing long-term operational resilience.
Abstract:• X is a company engaged in non-construction oil & gas services, namely water base mud (polyamine based) management services, supply of chemical materials, laboratory equipment, and drilling fluid engineers for oil and gas…
gas drilling. problems encountered when drilling through formations containing reactive clay and shale which can cause swelling clay problems and formation damage. This problem can be overcome with a high performance water based mud (HPWBM) mud system which has a super shale inhibition (polyamine) component. Mud which is formulated with the concept of total inhibitor, has inhibitory properties that can stabilize mineral clay and shale. The of this final assignment are to identify and study the high performance water base mud (HPWBM) mud system, then to know the ratio of good polyamines to be used in the KCL polymer polyamine mud formulation, then to look for the value of the physical properties of the KCL polymer polyamine mud formulation. to meet the oil company spec. This test begins with testing the mud properties of the KCl polymer polyamine mud sample from PT. Mitra Mandiri Saktitama before being exposed to Temperature and after being exposed to Temperature. Then analyze the changes in the value of the mud properties that have been made and the specifications of their physical properties, so that they can look for changes in the values of the mud properties of KCl polymer polyamine mud that fall within the specified range of mud properties. This test is carried out under the conditions of a room temperature of 78-300°F.
Abstract:The rapid development of information and communication technologies has significantly transformed higher education. Teaching and learning processes are increasingly supported by digital platforms, Learning Management Systems…
tems (LMS), and abundant online learning resources. In this context, university students are required to possess adequate digital literacy, particularly in software- and spatial-analysis-based courses such as Geographic Information Systems (GIS), which is a key course in the Environmental Engineering curriculum. This study aimed to analyze the effect of digital literacy on students’ learning outcomes in a GIS course offered in the Environmental Engineering Study Program at Universitas Hamzanwadi. A quantitative approach with a correlational design was employed. The population consisted of students enrolled in the GIS course in the odd semester of the 2024/2025 academic year, and all 44 students were taken as the sample using a saturated sampling technique. Digital literacy was measured using a Likert-scale questionnaire (1–5) covering technical skills, information search and evaluation, information management, online communication and collaboration, and ethical use of digital media, while learning outcomes were obtained from the final course grades.
The data analysis showed that the mean score of students’ digital literacy was 3.6 (moderately high), with a standard deviation of 0.45, whereas the mean GIS course grade was 78.5 with a standard deviation of 6.8. Pearson correlation analysis indicated a positive and significant relationship between digital literacy and learning outcomes (r = 0.62; p < 0.01). Simple linear regression further revealed that digital literacy accounted for approximately 38% of the variance in learning outcomes (R² = 0.38), with the regression equation Ŷ = 52.3 + 7.3X. These findings highlight the importance of strengthening students’ digital literacy in GIS instruction through training, project-based assignments, and the optimal utilization of Learning Management Systems.
Abstract:This research evaluates the performance of coastal safety structures in mitigating wave runoff through laboratory-scale simulations. Pancana Beach in Barru Regency, South Sulawesi, was selected as the research site due to…
o its vulnerability to wave-induced beach damage. To simulate wave conditions, a wave generator was designed using a 12-volt DC motor integrated into an acrylic wave bath. This research analyses the effectiveness of three types of coastal safety structures: reflectors, sea walls and sloping sea walls. Laboratory experiments measured the wave overflow volume for each type of structure under controlled conditions. The results showed that reflector-type structures achieved the highest efficiency in mitigating wave overtopping, with an average minimum overtopping value of 0.006 m³/ms. The findings emphasise the importance of selecting and designing appropriate coastal protection measures to minimise coastal erosion, protect coastal infrastructure and reduce risks to surrounding settlements. This study contributes valuable insights into the role of engineered structures in enhancing coastal resilience, especially for areas vulnerable to high wave energy.
Abstract:Online learning uses the internet network during the learning process, making it easier for students to access material and facilitating interaction with lecturers and other students. The aim of this research is to understand…
stand the impact of online learning on the interest and learning outcomes of Basic Mathematics for Civil Engineering students. The population of this research is first semester Civil Engineering students T.A. 2021/2022 totaling 30 people. The methods used to understand the impact of online learning on the interests and learning outcomes of Basic Mathematics for Civil Engineering students are qualitative and quantitative methods. The r test results show that rcount > rtable or 0.9998 > 0.306. This means that online learning influences students' interest in learning Basic Mathematics in the Civil Engineering Study Program. The results of the t test show that tcount ≥ ttable is 4.01 ≥ 2.045 so that online learning also influences the Basic Mathematics learning outcomes of Civil Engineering Study Program students. Students' ability to answer test questions during online learning was 76.67%.
Abstract:Students can recognize gaining knowledge of material if in the mastering manner they use gear and substances referred to as getting to know media. This tool can take the shape of a physical item, inclusive of sporting out…
out experiments to understand standards in actual terms,
along with melting experiments to search for string wavves. Waves are also known as
vibration phenomena that propagate via a medium or maybe without a medium, these
vibrations may be idea of as oscillations that pass from one factor to another, because the
characteristic of an test is real and additionally uses teaching equipment, as well as an
approach for educators to make college students lively and satisfied in studying. This
observe ambitions to analyze the Melde experiment that's usedto decide the traits of waves
in strings. The test become accomplished by using striking a string and growing waves with
a certain frequency. The analysis effects display that Melde's experiment is powerful in
figuring out the properties of waves in strings, the results of those findings may be utilized
in various fields together with physics and engineering. This research utilized literature as
a method, examine methodology. The ranges in the use of the literature technique are looking
at, analyzing, then figuring out, then ultimately several opinions of the research that has
been achieved. There are 25 published articles acquired from various domestic assets
analyzed in this article. via wearing out a Melde test to determine a wave on a string,
students can discover the primary concepts of mechanical waves and college students begin
to have direct enjoy the use of the Melde experiment. And by means of sporting out the Melde
experiment students can be encouraged to recognize the role of tension, string density, and
string duration within the formation of status waves via statistics evaluation from their
personal experiments and are capable of increase students' talents in facts collection,
information evaluation, and the software of bodily principles to waves on strings in context,
experimental.
Abstract:A cooling machine or commonly called an Air Conditioner (AC) is a system of auxiliary machines that can create cool temperatures in certain rooms so that workers on ships feel comfortable. Cooling machines are used to regulate…
gulate and manage air quality which are includes air circulation, air conditioning, air hygiene standards and air purification. There are several main components in the cooling machine, namely the Compressor, Condenser, Expansion Valve, Evaporator. Each of these important components has different functions and ways of operating, but are connected to each other so that the cooling machine can function. The purpose of the author making this final project is to determine the performance of the cooling system, factors that reduce the performance of the cooling machine, as well as repair and maintenance efforts so that the cooling machine can return to normal operation. This research was conducted on the MV. Vancouver by using a qualitative approach. The author conducted direct observations as well as in-depth interviews and documentation studies when conducting research. The results of the author's research found that the main factor causing the decline in the performance of the cooling machine was the appearance of sparks on the evaporator and coil pipe caused by interference with the filter dryer so that it inhibits heat absorption and the evaporator cannot evaporate the refrigerant optimally. The impact caused by the less than optimal operation of the cooling machine in the Engine Room Workshop MV. Vancouver was an unstable room temperature making the crew feel uncomfortable while working or resting.
Abstract:Abstract: This research focuses on the analysis and design of a cattle disease detection system using the Forward Chaining technique. This system aims to help farmers identify various diseases in cattle quickly and accurately,…
ately, which can ultimately improve livestock health and livestock productivity. In developing this system, the Forward Chaining technique is used as the main inference method. This method was chosen because of its ability to produce conclusions based on available facts in stages, so it is very suitable for expert system applications that require repeated and complex decision-making processes. This research begins with a system requirements analysis that includes identification of common types of cattle diseases, associated symptoms, as well as the knowledge and rules required for the diagnosis process. Next, system design is carried out which includes creating a knowledge base, inference engine, and user interface. The result of this research is a prototype expert system for diagnosing cattle diseases which has been tested and shows satisfactory performance in detecting various cattle diseases based on the symptoms entered. With this system, it is hoped that farmers can more quickly take appropriate action against diseases that attack their livestock, so that they can minimize losses and increase the efficiency of livestock businesses.
Keywords: analysis; expert system; forward chaining; cattle disease; website.
Abstrak: Penelitian ini berfokus pada analisis dan perancangan sistem deteksi penyakit sapi menggunakan teknik Forward Chaining. Sistem ini bertujuan untuk membantu peternak dalam mengidentifikasi berbagai penyakit pada sapi secara cepat dan akurat, yang pada akhirnya dapat meningkatkan kesehatan ternak dan produktivitas peternakan. Dalam pengembangan sistem ini, teknik Forward Chaining digunakan sebagai metode inferensi utama. Metode ini dipilih karena kemampuannya dalam menghasilkan kesimpulan berdasarkan fakta-fakta yang tersedia secara bertahap, sehingga sangat cocok untuk aplikasi sistem pakar yang memerlukan proses pengambilan keputusan berulang dan kompleks. Penelitian ini dimulai dengan analisis kebutuhan sistem yang mencakup identifikasi jenis-jenis penyakit sapi yang umum, gejala-gejala yang terkait, serta pengetahuan dan aturan yang diperlukan untuk proses deteksi. Selanjutnya, dilakukan perancangan sistem yang mencakup pembuatan basis pengetahuan, mesin inferensi, dan antarmuka pengguna. Hasil dari penelitian ini adalah sebuah prototipe sistem pakar deteksi penyakit sapi yang telah diuji dan menunjukkan kinerja yang memuaskan dalam mendeteksi berbagai penyakit sapi berdasarkan gejala-gejala yang dimasukkan. Dengan sistem ini, diharapkan peternak dapat lebih cepat dalam mengambil tindakan yang tepat terhadap penyakit yang menyerang ternaknya, sehingga dapat meminimalisir kerugian dan meningkatkan efisiensi usaha peternakan.
Kata kunci: analisis; sistem pakar; forward chaining; penyakit sapi; website
Abstract:Abstract: This study aims to develop a web application that is able to facilitate teachers in providing exams with answer-type questions via voice using the speech recognition method and is able to display pictorial exam…
questions. The process of collecting research data was carried out through interviews and literature studies with case studies in the 4th semester English course in Informatics Engineering study program at Universal University. Web application development is carried out using the Extreme Programming method with testing through the Black Box Testing approach. In development, researchers used the Laravel framework with the PHP, Javascript, and MySQL programming languages as databases. The results of the Black Box test show that the web application is able to carry out the functionality according to the problems in this study. With this web application, it is hoped that teachers can easily provide exams with sound and image-based questions, provide a more interactive and effective learning experience for students, and enrich the use of technology in educational contexts.
Keywords: laravel; javascript; MySQL; PHP; speech recognition
Abstrak: Penelitian ini bertujuan untuk mengembangkan sebuah aplikasi web yang mampu memfasilitasi pengajar dalam menyediakan ujian dengan pertanyaan bertipe jawab melalui suara menggunakan metode speech recognition serta mampu menampilkan pertanyaan ujian yang bergambar. Proses pengumpulan data penelitian dilakukan melalui metode wawancara dan studi pustaka dengan studi kasus di mata kuliah Bahasa Inggris 2 program studi Teknik Informatika semester 4 Universitas Universal. Pengembangan aplikasi web dilakukan menggunakan metode Extreme Programming dengan pengujian melalui pendekatan Black Box Testing. Dalam pengembangan, peneliti menggunakan framework Laravel dengan bahasa pemrograman PHP, Javascript, dan MySQL sebagai basis data. Hasil pengujian Black Box menunjukkan bahwa aplikasi web mampu menjalankan fungsionalitas sesuai dengan masalah yang ada dalam penelitian ini. Dengan adanya aplikasi web ini, diharapkan pengajar dapat dengan mudah menyediakan ujian dengan pertanyaan berbasis suara dan gambar, memberikan pengalaman belajar yang lebih interaktif dan efektif bagi mahasiswa, serta memperkaya penggunaan teknologi dalam konteks pendidikan.
Kata kunci: laravel; javascript; MySQL; PHP; speech recognition
Abstract:Abstract: The increasingly fierce business competition in this era of globalization requires companies to rearrange business strategies and tactics in order to always survive in business competition. To achieve this, there…
re are several things that can be done, namely by improving product quality, adding product types, and reducing company operational costs by using company data analysis. Data mining is a statistical process that identifies and categorizes data. PT. Swasti is a company engaged in contracting and supplying the engineering needs of palm oil mills. The purpose of this research is to help classify sales data in order to maximize stock management. In this study, the application of clustering using the k-means algorithm was used. The results of the data modeling will group the stock of goods into a number of clusters. The grouping will produce in information about the sale of goods where there are three groups, namely sales that are not selling well, selling well, and selling very well.
Keywords: k-means; data mining; clustering; sales stock.
Abstrak: Persaingan bisnis yang semakin ketat di era globalisasi ini menuntut perusahaan untuk menyusun kembali strategi dan taktik bisnis agar selalu bertahan dalam persaingan bisnis. Untuk mencapai hal tersebut, ada beberapa hal yang bisa dilakukan yaitu dengan meningkatkan kualitas produk, penambahan jenis produk, dan pengurangan biaya operasional perusahaan dengan cara menggunakan analisis data perusahaan. Data mining merupakan proses statistik yang mengidentifikasi dan mengelompokkan suatu data. PT. Swasti adalah perusahaan yang bergerak di bidang kontraktor dan supplier untuk kebutuhan teknik dari pabrik kelapa sawit. Tujuan diadakan penelitian ini untuk membantu mengelompokkan data penjualan agar dapat memaksimalkan manajemen stock. Pada penelitian ini, digunakan penerapan clustering dengan menggunakan algoritma k-means. Hasil dari pemodelan data tersebut akan mengelompokkan stock barang kedalam sejumlah cluster. Pengelompokkan tersebut akan menghasilkan informasi tentang penjualan barang dimana terdapat tiga cluster yaitu penjualan kurang laris, cukup laris, dan sangat laris.
Kata kunci: k-means; data mining; clustering; stok penjualan.