bluuebunny/crossref_metadata_2025_split huggingface dataset:
Construction cost effectiveness comparison on I-girder bridge and box culvert
Authors: Hidayat Irpan , Suangga Made , Hartanto Felix 
Published: August 2021

Abstract
One of the most important aspects in bridge construction is cost. A study case has been carried out in Balikpapan-Samarinda highway STA 45+990.946. In that specific location, a bridge is needed as a local road. The ongoing project is constructing a 90 m long I-girder concrete bridge. In this research, as opposed to I-girder concrete bridge, box culvert is designed and then calculate the cost. The budget calculation for bridge construction costs refers to the Unit Price Analysis Guidelines (AHS) in the Public Works Sector and General Specifications. Under the AHS Guidelines, work items are divided into 10 job divisions. The recapitulation of the construction cost budget shows that box culvert construction costs are less than I-girderbridge. In earthworks and structural works, it is the most significant cost difference between box culvert and I-girder bridge. In earthworks, the costs required to the box culvert construction is higher than the I-girder bridge construction. Meanwhile, the construction cost of the box culvert in structural works is less than the I-girder bridge.
Risk factors analysis affecting project time delay in construction projects using CATWOE analysis
Authors: Rachmayanti Wahyu , Arumsari Putri 
Published: August 2021

Abstract
Project delays is one of the disadvantages in project development. Risk factors are risk that are identified as a factor that causes a certain event. Risk factors consist of various kinds factors that can affect of project delays. The purpose of this research is to identify risk factors and determine conceptual model that explain the dominant factors using CATWOE analysis. The dominant factors of this research is design changes and conceptual model that chosen are the second conceptual model.
Rigid pavement optimization by using empirical mechanistic method and Kenpave software
Authors: Gabriela Shinta , Dwidarma Nataadmadja Adelia 
Published: August 2021

Abstract
This research was undertaken on TNC Main Road to CBD project with the aim to find an optimum design, by using Manual Perkerasan Jalan 2017 and Kenpave software. The existing pavement was redesigned to achieve a design life of 40 years, instead of 20 years. The design was also compared with other alternative designs that were obtained from past research study. The analysis was done by comparing the maximum stress values, maximum deflection values, and material cost per meter. It can be concluded for this study that the pavement modification using slag aggregates in concrete mixture as the surface layer was the most optimum pavement design as it has the lowest maximum stress and deflection values, and thus lowest cracking index and longer designed life, with a reasonable construction material cost.
Construction management risk and digital technology: lens of civil engineering, industrial engineering and architecture of eco waste water treatment construction
Authors: Meilani  , Soebandrija Ken 
Published: August 2021

Abstract
The sector of oil and gas, chemical and petrochemical constitute, in global perspective, are considered country’s economic investment and profits; and deemed as escalating global demand. There are challenges in handling its Waste Water Treatment (WWT) and Eco Friendly Construction (EFC). The objective of this paper is to elaborate the Construction Management Risk (CMR) and Digital Technology (DT) through the Research Methodology of Multidisciplinary Lens of Civil Engineering, Industrial Engineering and Architecture toward WWT and EFC. In this paper, the WWT refers to the case study of Sulfidic Spent Caustic (SSC).The aforementioned CMR is integrated with DT in term of Construction Management Risk System, known as CMRS. This CMRS constitutes, yet not limited to Trilogy of Client, Head Office Manager, and CEO toward Several Sites of Constructions. In this paper, the contribution of Civil Engineering constitutes the discourse and elaboration on Construction Management Risk Systems (CMRS) along with its implementation on WWT and EC. Meanwhile, the contribution of Industrial Engineering constitutes the Key Performance Indicators (KPI) and its Safety Dimensions in Construction Management. Subsequently, the Architecture contribution constitutes efficient construction implementation within the efforts to combine the balance among quality, cost, and delivery lead time.
Sustainability and affordability analysis for One Million Housing Program a case in Cileungsi District Bogor Regency West Java
Authors: Cahyani Dian Ratri , Dita Rarasati Ayomi 
Published: August 2021

Abstract
To spur economic growth, the Indonesian government initiates regional development, which include naming Cileungsi District Bogor Regency West Java as industrial area, which causing migration level to this area to increase. An efficient industrial area considers the housing for its employees, unfortunately, the fulfilment of housing is still a considerable problem in Cileungsi District. One Million Housing Program is a program by the government to accommodate the growing needs of affordable housing for low-income workers. However, the housing provided through this program is still considered unsustainable. This paper aims to analyse the sustainability and affordability of these housings and give improvement to the housing that can be implemented. The research used questionnaires, interviews, and observation. The data acquired through questionnaires is processed by using validity and reliability test. The houses that are being analysed are not entirely sustainable and affordable. There are several aspects of the house that are not sustainable such as the accessibility, energy and water efficiency, material and quality, and house size. These housings are only affordable for those who have an income of > IDR 4.000.000.
Performance of Wearing Surface with Addition of Wetbond-SP
Authors: DwidarmaNataadmadja Adelia , Prahara Eduardi , Setyandito Oki , Sudiyono Kris Ade , Leonardo Lie Jose 
Published: August 2021

Abstract
Having a pavement that lasts until its designed life is a goal for road engineers. Moisture-induced pavement distresses in flexible pavement are often found during initial stage of pavement lifetime. Previous study has shown that, based on laboratory test, using an anti-stripping agent named Wetbond-SP at dosage of 0.5% of binder weight can improve the moisture susceptibility and increase the stability of the asphaltic mixture. This research project aims to evaluate the performance of asphaltic mixture with 0.5% Wetbond-SP when subjected to actual traffic and climate condition. It was found that the laboratory test result showed an unsatisfactory result for the asphaltic mixture, but when the mixture was applied as patching infield, it can be seen that the patching performs reasonably well with only minor ravelling occurred 27 days after the patching works were completed, despite the fact there were few heavy rainfalls occurred. The research results also indicated that the usage of marginal aggregates is possible and needed to be explored further.
Geofoam: A potential for Indonesia’s soil problem II
Authors: Gunawan A 
Published: August 2021

Abstract
Indonesia is a country with a fair amount of hills and mountains. Having a tropical climate and high rainfall, landslides/slope failures are a common occurrence in Indonesia. According to the Indonesian National Board for Disaster Management, 355 slope failures occurred in 2019, with 81 casualties. To aggravate the problem, global warming and climate change result in extensive dry period and higher intensity rainfall. Slope failures can become more frequent in the near future. Common mitigation of slope failure includes construction of retaining structures, or by reducing water infiltration by the use of shotcrete. In this paper, the use of geofoam to mitigate slope failures is introduced, followed by a case study.
Green building construction rating assessment in The LL Dikti Office Building, XIV Biak Region, Papua
Authors: Papare Vidi J.D. , Maretha Sujana Caroline 
Published: August 2021

Abstract
The number of CO2 emissions produced by buildings harms the environment. Green building is an action to reduce negative impacts on the surrounding. This research had conducted to assess the rating of green building concepts that applied to the LL Dikti building, Papua. The result is the accumulation of points from each criterion such as land use, energy efficiency and conservation, water conservation, material resource, and cycle, indoor air health and comfort, and building and environment management. The total acquisition result for the building was 41 points and awarded the silver rating. Several things can do to increase the rating, such as install a kWh meter to measure electricity consumption in each load group and equipment system, use of alternative water sources, and the existence of installations or facilities to sort and collect household-like waste.
Use of Cyperus alternifolius and Eichhornia crassipes for removing heavy metal from shrimp farm effluent in wetlands
Authors: Chi-Tuan Mai , Tran Thanh , Quang-Tuong Luong 
Published: August 2021

Abstract
Water quality deterioration by nutrient enrichment from shrimp farming has been a concern in recent years, especially heavy metal in water resource. Phytoremediation technology using aquatic weed in wetlands increasingly applied to remediate the eutrophic waters. Objectives of this research were to evaluate the effectiveness and potential of both Cyperus alternifolius and Eichhornia crassipes in lab scale constructed wetland in reducing heavy metal as iron (Fe) and copper (Cu) using phytoremediation technologies in 1, 3, 7, 10, and 14 days. The results showed that the survival rates (SVR) of both aquatic plants in the experiment was the highest (100%) after 14 days of treatment. As a result of Zn, Fe, Cu concentration in control and experimental plot tended to decrease from start time to 14 days, concentration of iron were 0.0 mg/l in both the experiment and control plot at 14 days, the experiment plot showed effectively used in reducing a concentration of zinc and copper between the day 1 and day 14. To conclude, the results indicated that both plants could be used in wetlands engineered for iron and copper remediation.
Development of Dictionary and Checklist based on WBS (Work Breakdown Structure) of Structure Works in Stadium Construction for Safety Planning
Authors: Ikarwitaza Pandu Anugerah , Riantini Leni Sagita , Latief Yusuf 
Published: August 2021

Abstract
Stadium is a complex structure, needing sturdy structure components while also maintaining its function as a stadium. Stadium construction requires meticulous planning and calculation, as it will be used by many people simultaneously. Therefore, a certain tool is needed to assist the construction planning and control the structural work, so that every work detail can be defined in a detailed manner. The breakdown of each work into smaller work elements is important to minimalize the chance of error, by using Work Breakdown Structure or WBS. This research focuses on the development of the WBS into a WBS dictionary and checklist. The research methodology applied are experts’ validiation, survey and interview of respondents, as well as descriptive statistical analysis. Therefore, this research’s findings are expected to minimize errors from happening during the construction phase of a stadium structure.
Plant Redesign for pH Neutralization Process of Textile Wastewater Treatment
Authors: Yulia Elfi , Ekawati Estiyanti , Budi Eko Mursito 
Published: August 2021

Abstract
This study reports the redesign of a laboratory-scale pilot plant for textile wastewater treatment, especially in the pH neutralization process. The goal was to improve the plant structure, to facilitate more efficient process control. The result was a modular wastewater treatment plant that easy to operate and more efficient. A microcontroller controlled the plant. The plant was equipped with sensors and actuators to enable process monitoring and control in real-time. The control system was able to maintain the waste pH close to the setpoint (pH 8.5) despite the process disturbances.
Priority Determination of Repairing Embankment Dam using Analytical Hierarchy Process (AHP), Case Studies: Saguling Dam and Djuanda Dam
Authors: Juliastuti  , Rico I. , Cahyono C , Wijayanti Y. 
Published: August 2021

Abstract
Damage to the body of the dam requires fast handling, so it is necessary to repair the damage. But with a lot of damage and limited funds, a priority is needed to improve the damage to be repaired first. The research objective is to identify damages to the body of the dam based on visual and instrumentation inspection, make an assessment using the Condition Index method, and determine repair priorities by using the Analytical Hierarchy Process (AHP) method and assisted by the Expert Choice program. The study was conducted at the Saguling Dam and Djuanda Dam. The results showed that the condition index of the body of the Saguling Dam is 4.044 while in the body of the Djuanda Dam is 4.149. The priority for damage repair in the Saguling Dam is sedimentation, while the Djuanda Dam is seepage.
Biomimicry comparison studies before and during Covid-19 pandemic in product design innovation
Authors: Lestari Dina 
Published: August 2021

Abstract
Technological advances bring changes and impacts in many aspects of human life, and it is also affecting product design innovation learning system, one of the examples is the students’ dependence on the internet in finding references to their design ideas. In this research, students are introduced to an environmental observation-based learning method known as biomimicry to create innovative product designs. Respondents in this research were students of the product design study program at the Universitas Agung Podomoro Jakarta which were divided into 2 groups as a comparison. The observation process was carried out before and during the Covid-19 pandemic in different locations and objects. The method used in this research is a participatory qualitative method with a comparative and correlational approach. The purpose of this research is to study and evaluate product design innovative learning systems by observing comparative biomimicry before and during the Covid-19 pandemic. The conclusion is that after comparing biomimicry observations to students before and during the Covid-19 pandemic occurred, it turns out that there are significant differences in skills, conceptual, and creativity aspects resulting from the learning process in two different groups of students.
The effect of job stress to employee performance: Case study of manufacturing industry in Indonesia
Authors: Sari Deasy Lastya , Storyna Helen , Intan Ribka , Sinaga Putri , Gunawan Fergyanto E. , Asrol Muhammad , Redi A. A. N. Perwira 
Published: August 2021

AbstractThe manufacturing industry in Indonesia is proliferating, contributing almost a quarter of Indonesia’s gross domestic product (GDP). This development encourages companies engaging in the industry to increase production capacity. As a result, the employees are demanded to work harder as the manufacturing sector rises. Overwork can result in fatigue, stress and various health problems. However, work stress is a common problem faced in almost all industries and often affects employee performance. Therefore, the main purpose of this study is to analyze the effect of work stress on employee performance in the manufacturing industry in Indonesia. The sample of this research is 93 employees at the staff level who work in various manufacturing companies. This study uses partial structural data analysis techniques using SPSS version 20.0. These techniques are used to analyze the effect of work stress and work environment on employee performance. The results showed that work stress and work environment has a significant impact on employee performance with the value of R = 0.972. Based on the survey result, non-standard working hours and poor relationship with colleagues/superiors contribute to the creation of work stress which has an impact on low performance. Thus, this study suggests the organization to perform a proper stress management as a solution to work stress by implementing flexible working hours and holding discussion forums and meetings between employees. Therefore, employees will be more motivated to improve work productivity.
Clustering in food waste analysis: case study at student cafeteria
Authors: Viyanto Billy , Laurence  , Christiani Agustina 
Published: August 2021

Abstract
Food waste is one of the most recent global issues that is getting more attention nowadays. Food waste is all food that is not consumed or thrown away even though it is fit for human consumption. This paper presents a method of direct weighing of edible food that is not consumed in the student canteen. Based on preliminary observations, food is classified into carbohydrates, vegetables, meat and others. The results of weighing data show more accurate results compared to previous study. With a total of 226 data, the research was focused on the carbohydrate and vegetable variables. The computer algorithm using the elbow method shows the unsupervised K-Means clustering of 4 clusters. The quality of the clustering method is good, with an average silhouette coefficient of 0.6. This research can be used as a basis for further studies on food waste and life cycle assessment.
Amine-based vapor-phase crosslinking processes of polyimide-based membranes for energy efficient separations
Authors: Mangindaan Dave 
Published: August 2021

Abstract
Membrane processes are crucial in the industrial and engineering chemistry, for separation and purification of not only chemicals but also gases and wastewater treatment. In order to obtain high quality products from membrane processes, the membranes must be engineered to cater such performance, namely by chemical crosslinking process. One of the emerging crosslinking methods is the vapor phase crosslinking (VPC). The advantages of VPC for enhancing membranes are usage of fewer amounts of chemicals, with specific crosslinking of the top selective layer only (no unnecessary crosslinking of bulk layer). Therefore, membranes can boost their quality without sacrificing much of their productivity (quantity of flux). In this paper, several utilization of amine molecules for VPC of polyimide membranes for gas separations, pervaporation (gas-liquid separation), and organic solvent nanofiltration (OSN) are covered. The performance enhancements of the polymeric membranes for the aforementioned processes are summarized. Furthermore, the molecular mechanisms of the VPC of the amine-based vapors are reviewed, based on X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared characterizations. It was found that there are several possible scenarios of interaction between amines and polyimides, which are not only involving crosslinking (combination of several polymeric chains), but also grafting, and sometimes chain scissions. The investigation of molecular mechanism of the amine-based VPC process provides insights to the relationship between structural configurations towards the separation performance of various types of membrane processes, which paves way for the development of membranes of the future.
Visual Exploration through Visual Communication Design Work Creation as an Introduction Attempt of Marine Biodiversity phase 2 – Nudibranchs
Authors: Witabora J , Homan D K 
Published: August 2021

Abstract
Nudibranchs are a part of marine biota that have a very interesting visual appearance. There are over 3,000 species of nudibranchs that have been discovered. Their varied visual appearances, in both shapes and colours, have made nudibranchs very popular in Underwater Macro Photography (UMP). Nudibranchs’ visual appearances can be a big potential if processed through visual communication design, especially illustration. Nudibranchs’ visual strength and illustration’s fluidity can give life to nudibranchs’ visual appearances and make them a part of Indonesia’s maritime culture. By introducing nudibranchs to Indonesians, especially the young generations, the researchers hope that the young generations will gain more interest in the ocean. This research seeks to elevate nudibranchs as maritime visual ambassadors in the effort of developing Indonesians’ maritime paradigm.
DNAku Consumers Profile: One of The First Direct to Customer Genetics Testing in Indonesia
Authors: Parung Deby Erina , Azizatikarna Kians , Amirulloh Dian , Listiyaningsih Erlin , Mahesworo Bharuno , Budiarto Arif , Simon  , Pardamean Bens 
Published: August 2021

Abstract
DNAku test is one of the first direct to customer genetics testing in Indonesia. DNAku test came with a different approach as it gave their customer reports of their genetic predisposition to corresponding traits. Four months after launch, we create consumer report of this genetics testing based on DNAku questionnaire results. We applied three statistical methods, including descriptive statistics, multivariate normality test, and t-test to the demographic data of the DNAku customers. The result shows population clusters which may represent population groups that are interested in genetics testing. The questionnaire also has questions about the customer’s lifestyle. The results of these questions were processed to find the lifestyle of DNAku customers.
COVID-19 Testing Pipeline: Lesson Learned
Authors: Amirulloh Dian , Sudigyo Digdo , Budiarto Arif , Nurlaila Ika , Listiyaningsih Erlin , Andrew  , Simon  , Pardamean Bens 
Published: August 2021

AbstractThe transmission of severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) in Indonesia is seen to be uncontrollably increasing that urges the government to leverage the capacity for the disease detections. Real-time polymerase chain reaction (RT-PCR), rapid test and computed tomography (CT) scan are the most common methods to determine if one has been infected regardless of whether or not the common symptoms of such Corona Virus Disease 2019 (COVID-19) surface. Among these three, RT-PCR is considered the gold standard for qualitative and quantitative assessment of SARS CoV-2 detection. The present paper aims at elaborating the framework of Roche’s RT-PCR machine employed specifically for SARS CoV-2 detection performed by Genetics Indonesia which is deemed to be efficient and relatively quicker than other detection kits. RT-PCR machine detected SARS Cov-2 with RNA amplification curve equals to 10 copies RNA below the cut off value of Crossing point (Cp) positive control. Also elucidated in the paper is the implementations of EAV RNA and LightCycler® 96 RT-PCR System through which analysis time, amounts of individual required sample, as well as the reagents, can be accordingly reduced.
Digitalization of Small Batik Industry: UI/UX design to support Batik Lasem E Commerce
Authors: Saptaputra Emanuel , Basiroen V.J. , Septian Darren Eka 
Published: August 2021

Abstract
Batik Lasem was once one of the six biggest industries during Dutch Colonialism. However, this industry began to experience extinction until now. It was caused by the difficulty of young Lasem to continue in this industry. They tendto work in modern sector inside or outside Rembang. Because of that they had experienced some difficulties to promote with a wider range. The objective of this project is to create application that can help Batik Lasem entrepreneurs in terms of promotion and sales. Research methods that used for this study is qualitative. This research taken from both online and offline (books, journals, internet, or interview). Deeply interview with Batik Lasem entrepreneurs with Santoso Hartono, Katrin, and Rahmini will be held. After that to get more informations an interview with Dante Hidajat will be held. She is a professional writer who did a research about Batik lasem.