bluuebunny/crossref_metadata_2025 huggingface dataset:
Image Segmentation using Color Value of the Hue in CT Scan Result
Authors: Simbolon Sedia , Jumadi Juju , Khairil K , Yupianti Y , Yulianti Liza , Supiyandi S , Windarto Agus Perdana , Wahyuni Sri
Published: December 2022

Object recognition with visual computer techniques is a process necessary to detect different objects in a three-dimensional image to get precise results. Color extraction process Red Green Blue (RGB), Red, Green, Blue (HSV) and other color spaces can produce high accuracy and minimize the number of parameters to speed the computing process. In this study the diagnosis of pneumonia was based on a CT scan of the lungs in the color image segmentation process. The removal of color features is done by using the HSV color segmentation method to classify the pneumonia in CT scans, which makes it possible to detect an image segmenting object as a blob. The color sample generates a value that is the reference point for the filter range during the segmentation process, based on the test results. In this process, it is clear how many objects are found as a color-based pneumonia diagnosis by changing the HSV and RGB thresholds.
Convolutional Neural Network and Deep Learning Approach for Image Detection and Identification
Authors: Cynthia Eka Pandu , Ismanto Edi , Arifandy M. Imam , Sarbaini S , Nazaruddin N , Manuhutu Melda Agnes , Akbar Muhammad Ali , Abdiyanto
Published: December 2022

There are many different varieties of clouds, each with a unique set of properties. As a result of this variability, it is difficult to discern these sorts of clouds. A database’s objects must be categorized using data categorization in order to be organized into multiple categories. This study made use of the Cirrus Cumulus Stratus Nimbus (CCSN) dataset, which falls under the low cloud category and includes photos of Cumulus (182 images), and Cumulonimbus (242 photographs), and Stratus (242 images) (202 images). A fast R-CNN detector with feature extraction = Resnet50 was used to create a system for classifying cloud kinds. A significant amount of training time is saved by the quicker R-CNN due to its lack of a selective search algorithm. Training loss values for cloud images had an average of 0.9030 from the first epoch through the last one. Using the Faster R-CNN object detection method with the Resnet50 architecture, cloud photos were added and the accuracy was 94.12 and the average precision was 0.76. - Faster R-advantages CNN affect the architecture utilized and are marginally influenced by the algorithm choice, however CNN with Resnet50 is superior overall where these advantages are held.
Brain Image Decomposition on Image Alteration
Authors: Rahmawati Sri , Achmad Daengs GS , Putra Teri Ade , Damanik Abdi Rahim , Wanto Anjar
Published: December 2022

Image transformation is essential to explore and find out specific information that does not exist and has not been previously known from an image, such as pixels, geometry, size or colour. Therefore, this paper aims to analyze the image transformation by generating the value of the thresholding method from low to high in image segmentation. The segmentation process works based on two-colour models, namely HSV and RGB colours. Image segmentation problems occur when an object has more than two colours. There is lighting that affects the condition of the thing, so it is proposed to change the threshold value from low to high to compare the segmentation results of each given value to determine the optimal threshold value. The image data used is a brain MRI image from the website www.hipwee.com. The Matlab 2019a application is used to assist the analysis process. Based on the analysis results, in this case, the smaller the HSV and RGB threshold values, the segmentation of the detected image results is not detailed and the less precise, and vice versa. The best Brain MRI Image Segmentation results when using a threshold value of HSV=0.5 and RGB=5.
A Design And Build A Robot Vacuum Cleaner
Authors: Rapa Charnia Iradat , Dephtios Erick , Mariangga Chrisna , Patiung Naomi
Published: December 2022

In this paper design of the robot Vacum Cleaner, based on the Arduino Mega 2560 is the can walk and vacuum the floor. In this study, a microcontroller is used to regulate the work of the robot based on data obtained by six sensors, and the robot’s movement is driven by motor driver to the left and right, forward and backward, where the input is given through the keypad in the form of dust and garbage thisness, provided that if the dust thickness is (30mg)/(mm)3 then the LCD will display binary logic “1”, and if the Dust thickness is ≥0,30 mg/mm3then the data will be displayed on the LCD is binary logic “0”. In designing this robot, four ultrasonic sensors are needed as proximity sensors, also needed a sensor to detect the thickness of the dust, as well as an infrared sensor as a sensor to detect thick garbage. In testing the vacuum cleaner robot, the four ultrasonic sensors, S1, S2, S3, S4 are designed as the cardinal directions, north south, east west, as input data on the microcontroller, and two motor drivers as microcontroller outputs that can move forward and backward, forward turn left, forward turn right, backward turn left, backward turn right as an output to move the robot vacuum cleaner. When the vacuum cleaner robot moves, the dust sensor will detect dust, if the dust thickness is 0,30 mgmm3, the LCD is logic “1”, the sensor will. Work and the vacuum cleaner will sweep the flour while sucking, if the dust thickness ≥30mgmm3, infra red sensor will work with a logic LCD display logic “0”, then the motor driver will stop. The vacuum cleaner does not suck up dust or thick garbage.
Realtime Monitoring Design of Solar Cell Power Plant Based on IoT
Authors: Lobo Eodia T. Sedan , Takaya Poisson Rownaldy , Paledung Ivanto Bin
Published: December 2022

Solar panels are electricity generators by utilize sunlight. Monitoring of electrical energy produced by solar cells is needed by consumers to find out how much power is produced. Previously, monitoring was done by looking at the voltmeter and ampere meter indications. This study was designed a prototype to monitor current, voltage, and light intensity through the Arduino Uno-based internet network. For the solar system panels, AC and DC current and voltage sensors are used, as well as calibrated light sensors, then a data transmission system integrated into the Blynk application, designing an Arduino Uno microcontroller-based system with the Blynk application on a Smartphone via a wi-fi communication module (esp8266). Parameters DC current and connection, AC current and connection. The highest light intensity is obtained at PLTS when exposed to sunlight and load at 02:30 and the lowest is at 09:30 due to weather. The results obtained are measurements from each sensor, used directly and displayed on the Blynk Application, monitored remotely from the internet network.
Hot Water Extraction on Aspal Buton
Authors: Saleh Muhammad , Yani Setyawati , Nurjannah
Published: December 2022

Asphalt demand for road maintenance in Indonesia is increasingly higher, which is by approximately 1.2 million tons each year. However around 2/3 asphalt functioned now is still imported. Buton asphalt can be straighthly used for road coating. Yet, it goes in line with the increasing cost of the world oil. Due to the oil substance over this kind of asphalt (i.e. buton asphalt), it widens more chances to cultivate this asphalt into oil. Extraction is done by process hot water extraction and solvent extraction. This research tried to determine the optimum yield bitumen from asphalt buton extraction process with hot water solvent and n-heksan solvent with the help of strirring. Asphalt which is used as variabel from asphalt buton. The operation variables were temperature, time, and the amount of asphalt buton mixed with hot water solvent. The result suggested that using hot water solvent didn’t generate extract result because the low of temperatur and extraction tension. Therefore by using n-heksan solvent generate % yield bitumen. For rasio of 1 : 5 with a temperature of 60 °C, a time of 30 minutes 2,12 %, a ratio of 1 : 5 at a temperature of 90 °C extraction time 30 minutes 4,84 %, ratio of 1 : 20 at 60 °C, 30 minutes 3,07 %.
Principal Component Analysis Application for Determining Factors Influencing Drainage Construction Process in Residential Areas
Authors: Amalia Yulisa , Fatimah Eldina , Oktaviani Cut Zukhrina
Published: December 2022

Banda Aceh experiences flood-related problems yearly, specifically during peak rains, which inundates several residential areas and municipal protocol roads. One of the most effective ways of resolving this problem is by constructing drainage channels in settlements. However, there are various problems associated with using this process in the survey, planning, and construction stages. During the development process, numerous obstacles are experienced from various factors, thereby leading to less optimal planning and implementation process. Therefore, this research aims to determine the dominant factors influencing drainage construction in residential areas in Banda Aceh City, Indonesia. This is a quantitative research with data collected through a questionnaire from 200 respondents involved in constructing residential area drainage in Banda Aceh City from 2017 to 2020. The factors evaluated were pre-planning, planning, and implementation, which were analyzed using Principal Component Analysis (PCA). The results showed that the factors influencing the drainage construction of residential areas in Banda Aceh City consist of implementation barriers, implementation discrepancies, pre-planning, planning, land acquisition, and community involvement with a total variance of 70.449%, while the dominating factor has a variance of 31.030%.
Environmental Architectural Design during the Pandemic Era: Office Buildings as a Case Study
Authors: Gomaa Esraa M. , Kamar Marwa , Madkour Mai
Published: December 2022

Environmental Architecture immortalizes buildings and realizes their ability to cope with sudden changes for several decades, Infectious diseases played a huge role in shaping the built environment. Throughout history, The function of those areas has changed and the interior is redesigned as well as the city, planning, and infrastructure, as occurred in the 14th century at the time of the plague’s spread(1). Pandemics come from spreading by humans while they use the spaces as a medium in their daily activities. Therefore, spaces should play as an antiviral medium to ensure well being and health today. The world is panicking at the discovery of a new pandemic that will lead to the closure of most of the outdoor activities in the inhabitant life, and the built environment has always shown the ability to develop after a predicament. One of the most common questions by users is what will happen in buildings that host roaming, mixed exploration, and spontaneous social interaction, such as office buildings? This research aims to adapt the design of the office buildings that host mixed uses to be an anti-pandemic environment to decrease the case of a pandemic; by integrating the science of medicine, architecture, urbanization, knowledge of modern materials, methods, and theories. As well as looking forward to advanced technology using analytical methodologies by adapting the analysis of already existing buildings altered architecturally to reduce the spread of pandemics through which a proposal can be developed to enhance the performance of office buildings in the time of a pandemic.
Sponge cities technology: Guidelines for Applying in Egypt
Authors: Ayad Eman H , Rasheed Sarah E. Abdel
Published: December 2022

Cities are currently facing major and severe threat of environmental stability that many researches focus on finding ways to help save, protect cities, and bring back local biodiversity and human breathtaking places. Also achieving resilient cities as one of the SDGs has been a main concern for recent development strategies and researches. Furthermore, multiple planning solutions have appeared to guarantee sustainability and prosperity. This paper introduces Sponge cities as an urgent effective technology for sustainable green cities and one of the recent terms and inquiring strategies for overcoming devastating outcomes of climate change. China, being the first leading country in applying the sponge city technology, has considered it as a necessary design concept and basic measuring criteria for ecological urban development. This technology aims to make maximum use of natural water resources providing an integrated system of environmental performance at the same time, it seeks to protect cities from the dangers of floods resulting from severe climatic changes. This study proposes how can sponge city technology be applied within Egyptian cities; it aims to set a group of guidelines for urban development of local environments in order to prosper and overcome environmental disturbance of climate change. A fast review on definitions and objectives is presented. Then the study determines briefly the main design features and techniques for such technology. Moreover, the paper focuses on specific global experiences for Sponge cities with various objectives and different conditions. These experiences are presented through an analytical study to explore their objectives, construction techniques, impact, future vision and performance. Further on it deals with the Egyptian status to apply the proposed technology on local areas acquiring a pathway to resilient ecosystems.
The Effect of Using Green Walls in Enhancing the Imageability of Urban Spaces
Authors: Hefnawy Noha H.
Published: December 2022

Recently, the usage of green walls has expanded from providing aesthetic benefits to concentrating on addressing urban environmental concerns including wastewater treatment, in this way enhancing the effectiveness of green buildings. The paper explores the green walls systems and their different types and identify the various benefits of their utilization as an enhancement of the not only on the buildings scale but on the urban scale as well. In addition, the study target to demonstrate the fundamental aspects that affect the urban spaces imageability. From this viewpoint the main objective of this paper is to conduct a guideline showing how green walls system can fulfill the different aspect of imageability resulting in enhancing the imageability of urban spaces.
Knowledge, Perception, and Intention of Professionals Related to The Transformation from Gray to Green Infrastructure in Egyptian Cities.
Authors: Haron Ahmed , Omayer Hayam M
Published: December 2022

Green infrastructure (GI) has become one of the most important urban trends that helps to preserve and develop the city’s ecosystem. With global climate change and increased carbon emissions, the need to transition from gray infrastructure to green infrastructure has increased. Or the integration of green infrastructure and existing gray infrastructure in existing cities. In Egypt, which faces significant environmental and urban challenges from an increasing population, rising temperatures, decreasing water levels, and high pollution in cities, the value of green transformation could minimize these impacts and increase the quality of life. This research aims to study the knowledge of Egyptian researchers and specialists in the fields of architecture and engineering about GI techniques. Understand their perception and ability to deal with GI. In addition to studying the challenges and opportunities facing Egypt’s green transformation from a specialized perspective. The results confirmed the lack of awareness of green infrastructure among the selected sample. The research confirmed the existence of social and economic obstacles facing the green transition. The research sets recommendations for increasing knowledge and expertise in the Egyptian market’s green transformation field.
Comparative Analysis of River Waterfront Urban Spaces to enhance social interaction: Case Study of Mamsha Ahl Masr in Cairo
Authors: Elsaman S M , Ehab H , Bahgat F A
Published: December 2022

River waterfront is one of nature’s elements which used as an additional buffer separate between the river and area around to create public space to let the society enjoy the riverfront, in general, it’s included parks, walkways, Services, and other enjoyable recreational areas.

The paper indicates the principles and the aspects of the riverfront development that play an important role in the improvement of the quality of life for the human who interact with these types of development projects as representing them in the matrix especially in Egypt.

The research aims are to measure the scale of development of river waterfront in Cairo by analyzing the aspects and principles of riverfront development and how they are applicable along the riverfront by comparing the development of the riverfront globally and locally.

Finally, the paper expressed in the literature review the terminologies of the river waterfront and the principles and aspects of the river waterfront development to extract from them a matrix discusses the relation between them with the SDG’S. then, the subsequent analysis of the international case studies of the riverfront development around the world to use it to modify the matrix conducted from the literature review and to establish a comparative analysis to measure how much the principles and aspects of the riverfront development applicable especially in the selected case study area (Mamsha Ahl Masr).
“ Approaching a low carbon metropolis ” A study of urban transformations based on rapid transit projects in Greater Cairo
Authors: Al-Ashwal Bakr Hashem Paumey
Published: December 2022

Metropolis Cities play an essential role in climate crises: they are the main sources of carbon monoxide and carbon dioxide emissions. They differ from rural communities in that they are communities in which different aspects of the global climate crisis overlap. And since there is an urgent and urgent need for strong interventions by city planners in order to confront these climate changes. These cities need innovative ways and systems for their planning and management in effort to reduce its carbon footprint and adjust to climate change.

A number of measures and approaches have been taken to confront the climate change crisis, but are these approaches and measures sufficient to achieve the radical transformation that our cities need.

This research paper discusses an overview of the efforts of some major cities to confront climate change in order to bring about a sustainable transformation. Is the shift towards sustainable smart transport with its various systems sufficient to confront climate changes in Greater Cairo, or do we need plans that are all integrated together to achieve indicators of city sustainability?
Lean and green approach as a tool for the Environmental Performance assessment of Industrial Area: A Case Study: Shaq Al-Thoaban area
Authors: yehia Mostafa , mostafa Seham , elsoud Tarek abou , Saleh Nada
Published: December 2022

the research aims to evaluate the environmental performance of industrial areas using the Lean and Green portal By reducing waste generated by industries and striking a good balance between operation and environmental performance,. Indicators including labour force (MP), raw materials (Mt), economic cost (Mo), machinery (mc), and the environment have all been researched as ways to accomplish this (mv). The study’s findings revealed that the value of the environment index is just 22%, a very low percentage that denotes neglecting the environmental component in favour of striking a balance among the other factors. The Lean & Green index has a value of 32%. It shows the bad performance compared to the global scale. A number of decisions have been taken in an attempt to improve the performance of industrial regions and achieve balance between different dimensions.
Nanomaterials in facades A Tool Towards Environmental Sustainability in Egypt
Authors: Hussain Manar , Sabour Enas Abdel , Mansour Sayed Marei
Published: December 2022

The world is witnessing a comprehensive change for all lifestyles as a result of nanotechnology, which caused revolution in the field of finishing materials it has become one of the important tools for the architect in his buildings to achieve his ideas and strive to improve the efficiency of the energy system. To reach an integrated system for a sustainable Nano-building, Nanotechnology has provided many applications that helped the development of architecture by providing solutions for many materials, Non-structural (insulation materials - coatings - glass…) and others. The quest to improve the efficiency of the energy system in terms of rationalizing the energy consumed to cool interior spaces, in addition to improving and removing environmental pollution.

Nano-thermal insulation is helping to improve the lives of millions of people in developing countries by providing them with materials with distinctive properties that help in thermal insulation of the building.

Nano materials can be used in the cladding of buildings to contribute to achieve thermal comfort for users as one of the principles for sustainability “achieving economic specially in countries suffering from.

The research paper sheds light on the applications of nanotechnology in the field of energy efficiency of through an analytical study for different projects cases.
Comparative Analysis between different types of Responsive Design Approach: (Applicability to Use in Different Climatic Regions in Egypt)
Authors: Eltanboly Manar Fouad , Ibrahim Vitta Abdel Rehim
Published: December 2022

Building and environment integration are necessary to be enabled, and advanced systems must work together to deliver optimal performance in terms of energy comfort and health. Above all, the area where building technology and services overlap, i.e. responsive building components, has great potential to realize the next step in energy efficiency by realizing comfortable indoor and outdoor environments in unprecedented ways. Recent studies have shown that an important reason for introducing new methods as population density increases is to reduce environmental damage. Energy consumption in the built environment accounts for approximately 40% of final energy consumption. In addition, external factors that affect building performance are analyzed, such s Overall building impact, energy consumption, pollution, and climate change. To achieve sustainability, it is proposed to use and implement the latest in smart materials and responsive system technology. The results of the dynamic thermal behavior analyze performed in the Building Concepts building simulation tool are then translated into energy, sustainability, and cost performance indicators, allowing the user to generate information based on the most relevant factors. This paper, therefore sheds light on new design and construction methods that enable buildings to interact with their external environment and achieve architectural responses to surrounding variables. This study aims to clarify the importance of responsive architecture to improve the built environment and the appropriate type of envelope based on climate data, applicable to different climatic regions of Egypt. The results confirm that implementing responsive envelopes has a positive impact on improving performance.
Digital Transformation: towards Sustainable and Smart New Cities in Upper Egypt (New Qena Case study).
Authors: Omayer Hayam M , Mobarak Mohamed A , Selim Omar
Published: December 2022

Despite the ongoing development of IT and innovative technologies in all aspects of life, the transformation of cities into smart, sustainable cities is still at a starting level in developing countries. Decision-makers and planners still face numerous challenges in achieving smart, sustainable cities in Egypt. Such as rapid urbanization, increased emission rate, waste of resources, population growth, weak infrastructure, etc. This has led many countries to accelerate the harnessing of technology’s potential for transformation into smart, sustainable cities. Therefore, the research aims to investigate and highlight the significance of innovative technologies in driving and achieving digital transformation in new cities in Upper Egypt to become smart, sustainable cities. That could lead the cities to invest and build the qualifications to be autonomous cities in the future. The research studied three cases in the Arab world in order to apply the lessons acquired from their digital transformation experiences and sustainable plans. Consequently, the paper presents proposed guidelines to achieve a sustainable smart city in New Qena. These guidelines assist planners, authorities, and decision-makers in improving the quality of life, and city services, enhancing economic and social sustainability, promoting climate-friendly environments, and developing a vision for the future transformation of the city.
Exploring the different technological qualities of dynamic configurations in smart sustainable urban spaces
Authors: Shedid Mona Y.
Published: December 2022

Urban spaces are mainly designed for people to improve their quality of life by encouraging physical activity and social interaction. However, digital and smart technologies are now regarded as the primary supporter of any development, particularly in urban spaces, because it drives development in three areas: the development of materials, systems, and tools, which comprise the smart urban space.

Purpose: The paper explore the different technological qualities forming smart sustainable urban spaces through identifying the different dimensions which must be followed to achieve a proposed framework for creating and developing smart sustainable urban spaces.

Argument: The paper focuses on the technological qualities forming smart sustainable urban spaces and their different dimensions, through literature review. In addition to studying and identifying the different technologies configuring smart sustainable urban spaces to reach the relation between the main qualities which form smart sustainable urban spaces, their different dimensions, the digital tools and smart technologies.

Findings: A proposed framework will be conducted to explore the relation between the main qualities which form smart sustainable urban spaces, their different dimensions, the digital tools and smart technologies to create smart sustainable urban spaces.
Mechanical properties of dredged soil reinforced with natural pozzolan and shredded tires
Authors: Utama K A , Harianto T , Muhiddin A B , Arsyad A
Published: December 2022

The utilization of waste materials is still an interesting subject to investigate. The dredged soil (DS) was classified as a waste material that requires more effort to improve its mechanical properties. Adding natural pozzolan (NP) material and shredded tires (ST) can be an exciting field to investigate and quite friendly to the environment. This research objective investigates the mechanical properties of the dredged soil stabilized with natural pozzolan material and shredded tires as a new way of green engineering. This research involved trass as a natural pozzolan and shredded tires as car-used tires waste retreading factory. Basic and mechanical properties tests were investigated, including standard proctor, unconfined compressive strength (UCS), and direct shear of the stabilized dredged soil. The proportions of involved trass were 3%, 6%, 9%, and 12%, while the proportions of shredded tires were 2% and 3% to the maximum dry weight of the material sample. These mechanical properties tests were conducted in a curing period of 7, 14, and 28 days. This recent research shows an increase in the maximum dry weight of the stabilizing soil to the untreated soil by 0.5% - 1.7%. While for the compressive strength value, an increase in the UCS value by 175% - 324% was revealed. Furthermore, there was an increased shear strength value, and it was found that the increase in cohesion value (c) was 6% - 83%, and the increase in internal friction angle value (ϕ) was 31% - 98%.
Bonding Strength of Buluhpring Bamboo Reinforcement Parallel and Non-Parallel Notches U-Type in Concrete
Authors: Arifin H , Afriansya A A , Amiruddin A A
Published: December 2022

Bamboo plants are one of the natural materials that are often seen growing and quite fast; Bamboo has been extensively researched for use as an alternative to steel reinforcement in concrete construction. Bamboo is not only more accessible, it is also more cost effective and beneficial for the environment. This study examines the bonding strength of bamboo reinforcement in concrete. Buluhpring bamboo from the Gowa area which has been dried and checked for quality is the bamboo material used. A simple cylindrical concrete specimen measuring 150 mm x 300 mm was used for testing the compressive strength of concrete after 28 days and obtained a result of 25.35 MPa. The Pull-Out test was carried out on 28-day cylindrical concrete measuring 150 mm x 300 mm which was planted with parallel and non-parallel U type bamboo reinforcement in it to determine the bond strength of the test object. The result of concrete with parallel bamboo reinforcement type U is 0.79 MPa and concrete with non-parallel bamboo reinforcement type U is 0.69 MPa. Based on the test, concrete with U-type parallel notch bamboo reinforcement is stronger than U-type non-parallel bamboo notch reinforcement.
Conceptual Framework For Supply Chain Risk Management Study on Breakwater Project in Indonesia Case Study : Makassar New Port Breakwater Development Project
Authors: Djaja Muhammad Nur Andry , Arifuddin Rosmariani
Published: December 2022

In carrying out its supply chain activities, a project often experiences problems starting from the procurement, production, to delivery processes. Likewise, the Makassar New Port Breakwater development project must consider its risks in planning, implementation and operations. This study aims to determine the risks that could potentially occur in supply chain activities at the Breakwater Makassar New Port development project in Indonesia. Furthermore, it will provide information on which risks fall into the high and low categories. Moreover, the research will provide the results of the mitigation options for each risk. An essential contribution of this research is that the results will give a lesson learned and initial data to determine future risks in the breakwater project. Based on the research conducted, the identified risks in the supply chain of the Makassar New Port Breakwater development project are 38 risks where the dominant risk factor in the material supply chain that influences the implementation of the Makassar New Port Breakwater development project is variable C6, namely the amount of production that does not match the target. In the moderate risk category. From the results of data analysis, it is known that the contractors and suppliers make efforts to reduce the dominant risk either preventively or curatively so that these risks do not interfere and cause a significant impact on the project objectives.
Comparative Study of Delay Factors In Construction Projects In South Sulawesi (BUMN VS Private)
Authors: Patasik D , Rahim I R , Hamzah S
Published: December 2022

The development of the construction world is currently growing rapidly along with the times, where stakeholders in the construction world are required to be able to complete a project efficiently, but in reality there are still many obstacles that we encounter that result in a work being hampered. Referring to the Government Agency Performance Report (LKIP) of the Office of Highways and Construction Development of South Sulawesi Province (2018-2019) and the Office of Public Works and Spatial Planning of South Sulawesi Province (2020) there are still many jobs that are delayed. The purpose of this research is to analyze the factors that influence the completion of construction projects and to analyze the comparison of factors/variable delays that significantly affect construction project delays in the scope of government (BUMN) and private sector in South Sulawesi as well as alternative handling. The method used is Frequency Index Analysis, Influence Index, Interest Index, and risk analysis. The results of the research show that 27 of the 35 factors distributed are relevant in South Sulawesi and the comparison of the risk factors for delay is dominant. The first rank was for BUMN respondents. There was a design change by the owner (58 %) and the first rank was for Private. Delay in delivery of goods/materials (79.44 %). The alternative on the BUMN side is that there is a design change by the owner is to review and discuss together about the urgency to change items and improve design planning. The alternative for the private sector, namely delays in delivery/material goods, is to ensure that construction management conducts coordination meetings with contractors to evaluate the order mechanism so that it can be carried out early.
Study Of Airport Development Through Smart Airport Concept Approach In Supporting National Tourism Strategic Area In South Sulawesi Province
Authors: Waris Milawaty , Adisasmita Sakti Adji , Ramli Muhammad Isran
Published: December 2022

The aim of the research is to analyze a study of quality of the development of Sultan Hasanuddin International airport through the concept of the Smart Airport. The methodology of research using descriptive quantitative and qualitatifve research. The descriptive quantitative analysis in this research use the scale of likert and path analysis with the help of SmartPLS software. The results of the research showed that the quality and performance level of services of Sultan Hasanuddin International airport Makassar based on the quality and performances services attributes, namely reliability, responsiveness, assurance, empathy and tangible and the level of customer satisfaction. the quality of airport development services indicate a significant indirect or direct significant effect on customer satisfaction. The value of r-square on the performance of airport development services is 0.823 > 0.70 at the level of customer satisfaction 0.6278 > 0.70, it can be concluded that the variables and indicators are reliable because they fulfill of requirements > 0.70. In this case the T-value < 1.96 and P-value < 0.05. Thus, it can be concluded that the X4 variable has not significant effect on the Y variable with its indicators. Based on the results of the research, it can be concluded that the quality and performance of airport development services through a conceptual approach Smart Airport significant effect on the level of customer satisfaction. Hoped that in the future airport development will be further improved considering that the Sultan Hasanuddin International Airport in Makassar will be planned to go to Makassara erocity with the aerotropolis concept and Smart Airport concept as a supported of technological service innovation that provides basic infrastructure so that all activities it can be well connected.
Performance of High Early Strength Concrete (HESC) using Different Superplasticizer
Authors: Sunarno Y , Tjaronge M W , Irmawaty R , Muhiddin A B
Published: December 2022

High Early Strength Concrete (HESC) is one type of high-performance concrete. HESC production requires high-quality materials and additives, namely chemical admixture type C (superplasticizer) to get high performance. This study aims to obtain a HESC mix design using a superplasticizer with the best performance. The 3 variations of HESC are made by adding a superplasticizer to a mixed concrete with the same dosage but from 3 different manufacturers, namely HESC-1, HESC-2, and HESC-3. Specimens performance consisted of tests for both fresh concrete and hardened concrete. The fresh concrete was tested by the slump, and the hardened concrete was tested by density and compressive strength tested at the age of 12 hours, 14 hours, and 3 days on cylindrical specimens measuring 100 mm x 200 mm which have been cured by water curing. Based on the test results, it was found that the average slump values in HESC-1, HESC-2, and HESC-2 were (cm): 64.0, 69.5, and 70.5. This shows that all HESC specimens are categorized as Self Compacting Concrete. According to the results of the density test on all specimens ranging from 2382 to 2436 kg/m3, all specimens are included in normal-weight concrete. With the initial compressive strength value of HESC at the age of 14 hours in the range of 21.0 to 24.9 Mpa, it can be concluded that all HESC specimens meet the requirements of High Early Strength Concrete, where HESC-3 is the best performance one.
Uniform Deflection in PCI Girder with Diaphragm Installation
Authors: Indianto Andi , Ariesta Aprilia Rossa , Yanuarini Erlina , Rizal Rikki Sofyan , Sukarman Sukarman
Published: December 2022

Keramasan Bridge 2 is a bridge with an age of more than 30 years, so it is necessary to review its feasibility and serviceability. Based on visual observations, there are signs of cracks in the transverse and longitudinal directions on the bridge floor. Based on the results of the loading test, it is stated that the deflection on the girder has exceeded the allowable deflection, and the cause of the longitudinal floor crack is caused by the non-uniform vertical movement of the girder. Based on this, it is necessary to strengthen the superstructure first before repairing the bridge floor. The strengthening of the superstructure is carried out by installing a diaphragm between the girders. The diaphragm is an angled steel profile of 100 mm x 100 mm with a thickness of 10 mm. To determine the number and position of diaphragms, two alternatives were analyzed. The first alternative is to add three diaphragms at every 6.275 m distance and the second alternative is the diaphragm at every 3 m distance. The results of the analysis show that the deflection that occurs between the girders after the installation of the diaphragm is uniform. The installation of diaphragms with a distance of 6.275 m and 3 m can increase the uniformity of the girder structure up to 8.12 times and 6.60 times respectively. Whereas the installation of diaphragms with a distance of 6.275 m and 3 m can increase the stiffness of the girder structure up to 10.96 times and 11.26 times, respectively. This shows that adding a diaphragm can provide rigidity and compactness between the girders.
Demand Estimation for Non-Working Trips: Forecasting Passengers regarding the New Open of Railway Line Maros-Barru
Authors: Yatmar Hajriyanti , Panguriseng  , Buqra Eka , Rinaldi Ricky
Published: December 2022

This study aims to identify the demand estimation of passengers regarding the operational railway of Maros-Barru line. The new railway is expected to attract passengers using public transport from origin to destination. The existing condition of Maros-Barru majority used private vehicle as the choice and minibus with fragmented line. The new construction railway provided by the government services the passengers through Maros-Barru. The demand for the railway plays an important role in describing the potential passengers of each region. The non-working trips with flexible time for the trip are the main focus of this study. The potential passengers using the origin-destination (O/D) matrix are used. The analysis uses the growth factor of the population and forecasts demand according to OD data. The high trip based on OD estimation result showed that Pangkep was at the first position followed by Maros and ended with Barru. This result indicates that Pangkep has a high demand according to the forecasting passenger which is located in the middle regency instead of Maros and Barru that close to the Capital area. The high trip occurred for the total not only for the Origin trip but also Destination trip. Hence, the population growth of the district on Pangkep is the most compared to other districts in other regions.
Coastline changes monitoring induced by man-made structures using synthetic aperture radar: A new simple approach
Authors: Pujianiki Ni Nyoman
Published: December 2022

This study presents a new simple approach to detect the coastline changes due to the construction of man-made structures. The new approach uses low-pass filter to reduce the speckles errors and Otsu thresholding method the create binary image. Then, a closing morphological operation was conducted to improve the binary image. In the final step, the canny edge detection is used for coastline delineation. The coastlines changes analysis was done by using Digital Shoreline Analysis System (DSAS). In general, the processing steps of this new approach is semi-automatic processes, it does not require manual digitization to extract the coastline. This method was tested using two independent synthetic aperture radar (SAR) satellite images, i.e., ALOS-1 and Sentinel-1 SAR data. The results show that this new approach produced better results than other well-known methods. This new approach detects clearly the man-made structure and its impact to the coastal zone, i.e., abrasion and accretion. The study area is located in Pengambengan Port, Jembrana Regency, Bali, Indonesia. In addition, the result of this study can be used as evaluation parameters for future development of Pengambengan port or re-design of present structures.
Analysis of hydrochemical parameters and dissolved zinc interaction by using PHREEQC simulation
Authors: Alimuddin H , Andarani P , Yokota K , Inoue T , Nguyen M N
Published: December 2022

Zinc is frequently reacting with inorganic species in water to form zinc species. Thus, the chemical speciation of Zinc in the aquatic environment has become a significant concern nowadays due to its adverse effect on humans and its potential toxicity in the water system. In this study, to investigate the interaction between dissolved zinc and hydro-chemical factors and to estimate the Zn speciation form, samples of river water were collected spatially from the Umeda River mainstream and tributaries in different seasons for one year. The hydrochemistry and dissolved zinc pollution characteristics of the samples were analyzed. Zn speciation was assessed by PHREEQC simulation. The result show that the main form of Zn speciation was Zinc free ion (Zn2+) in all seasons. However, in summer and spring season, the ZnCO3 and ZnOH+ concentration was higher than the other season. These speciation form may be attributed to the activities around the river in different season according to the similarities in downstream and upstream areas by the hierarchical cluster analysis result.
A Low Cost Open Source Remote Monitoring System for Hospital Wastewater Management
Authors: Abiyasa Agus Putu , Nuraga I Ketut , Satriadi Aryangga Marta
Published: December 2022

Wastewater can be dangerous if not handled properly, e.g. it spilled out from the tank. Hospital wastewater hazard was even more damaging to environments and humans due to its chemical contents. Therefore, it is desirable to have monitoring system to prevent such incidents. In this research, remote monitoring of wastewater using low cost and open source IOT technology was implemented at Bali Mandara Hospital waste management facility. The system used ESP8266 microcontrollers and HCSR04 ultrasonic sensors to determine wastewater volume. Blynk IOT cloud server was used as the platform to collect and visualize the data online. The implemented IOT system showed robust performance as a monitoring system for hospital wastewater management.
Performance of Covid-19 Waste Management at Health Service Facilities in North Toraja Regency
Authors: Rahim I R , Selintung M , Jamaluddin I , Ihsan M , Tiranda E Y
Published: December 2022

Community health centers are the frontliners of healthcare services which in its activities produces medical waste and non-medical waste both in solid and liquid form. This waste needs to be managed in accordance with existing regulations where environmental management must be carried out systematically and sustainably. Regarding the management of Covid-19 medical waste in the health facilities of North Toraja Regency, this study aims to determine the management process, management constraints and compare the management of wastewater and hazardous and toxic solid medical waste generated from handling Covid-19 patients at hospitals and health centers in Toraja Regency. North. The research method used is descriptive research method with case study design. Data collection techniques are carried out by observations, interviews, and documentation of secondary data. The results show that the management of hazardous and toxic solid medical waste water and waste for Covid-19 patients in private hospitals leaves the processing to third parties and government hospitals destroy solid hazardous medical waste with incinerators, while at community health center the wastewater is directly discharged into water bodies and medical hazardous waste. handed over to a third party. The process of treating waste water and hazardous and toxic solid medical waste for Covid-19 patients at the health facilities of North Toraja Regency has not been in accordance with the guidelines issued by the Indonesian Ministry of Health. The main obstacle in processing solid medical waste water and hazardous waste for Covid-19 patients at the health facilities of North Toraja Regency is the lacking of operational costs and delays in disbursing operational costs. Government-owned hospitals were found to be slow to comply the Covid-19 Health Facilities Waste Management Guidelines issued by the Ministry of Health of the Republic of Indonesia.
Potential Marine Plastic Debris Detection using Sentinel-2 Multi-Spectral Instrument (MSI)
Authors: Damayanti A D , Hanami Z A , Hirose K , Ainun S , Putra R D
Published: December 2022

Plastic debris has a long-term and quite severe impact on the marine ecosystem. Population growth in the developing area, Makassar coastal zone, will contribute significantly to the land’s waste. Consequently, floating plastic debris comes directly from the land’s plastic leaks to rapidly increase marine plastic debris. Due to being a major environmental issue in the coastal zone and reducing options for removal are very limited, this study becomes to detect the potential marine plastic debris in Makassar by Sentinel-2 Multi-Spectral Instrument (MSI) using Kernel Normalization Vegetation Index (KNDVI) and Floating Debris Index (FDI) for satellite image processing. The plastic debris was corrected atmospheric effect by Sen2Cor and processed by Sentinel Application Platform (SNAP). The resolution of images was set to 10 x 10 meters. The target area was calculated as 173.47 Ha. The results show that KNDVI and FDI combined are a developed and powerful approach to detecting plastic debris. KNDVI has more representative indices (SE 0.38) than FDI indices (SE 0.47). Through the discriminant analysis were verified pixels of KNDVI (3506 pixels) and FDI indices (701 pixels). Meanwhile, the Sensitivity Analysis Value (SAV) was well performed to detect the potential of marine plastic debris by KNDVI with SAV 7.5 than FDI indices with SAV 2.9.
Estimation of Makassar’s Landfill Surface Temperature and Its Surroundings Using Remote Sensing
Authors: Hanami ZA , Damayanti AD , Takeda T , Alimuddin H
Published: December 2022

Remote sensing is one of the cost and time-effective methods that can be used to assess change in the land, especially the land surface temperature and land cover. This study aims to estimate Makassar’s landfill surface temperature as a vital waste management monitoring parameter and the surrounding area using remote sensing. The Landsat 5 and Landsat 8 data in the years 2006, 2009, 2013, 2015, 2018, and 2020 were used in this study to see the change in the temperature and land cover. The study confirmed a significant increase in landfill surface temperature, with the highest value of 67°C found in 2018 and the minimum is 30°C in the year 2006. It also showed that compared to the surrounding area, the landfill has a higher temperature, followed by the built-up area of land cover that expanded from time to time. The accuracy of supervised classification of the land cover in 2006-2020 ranged between 58%-98%, and the Kappa coefficient ranged from 0.42 to 0.97.