bluuebunny/crossref_metadata_2025 huggingface dataset:
Determination of Riverbed Filtration Potential as Water Supply Source using Geoelectrical Method
Authors: Mohamad Faizal T B , Mohd Nordin A , Nor Azizi Y , Zaidi E
Published: December 2019

River bank filtration (RBF) is the influx of river water to the aquifer induced by a hydraulic gradient. Collector wells located on the banks in a certain distance from the river creates a pressure head difference between the river and aquifer, which induces the water from the river to flow downward through the porous media into the pumping wells. By applying this system of drinking water extraction, two different water resources are used where surface water from the river percolates towards the well; and groundwater of the surrounding aquifer is utilized. A study on the potential of RBF near the existing intake of Lembaga Air Perak at Sg Kampar was undertaken. Geophysical survey using resistivity traverses was made with 5 lines each on the right and left bank of the river. Three lines perpendicular and 2 lines parallel to Sg Kampar were investigated for possible water potential for RBF. The Wenner-Schlumberger configuration was chosen based on space provided in flatten areas and the depth of penetration interest in order to identify the presence of groundwater, stream-aquifer interaction and subsurface lithologies. Results from 2-dimensional profiles indicated that: (a) permeable soil saturated with water (possible groundwater and terrestrial sediments material) showed the resistivity value ranges of 0-150 ohm.m (b) semi permeable soil and weathered rock showed the resistivity value ranges of 200-1000 ohm.m and (c) impermeable soil and rock (unsaturated zone) showed the resistivity value ranges of 1000-7000 ohm.m.
Identification of Fracture Density and Orientation at “R” Geothermal Field Using Shear Wave Splitting Microearthquake Method
Authors: Riziq Maulana M. , Syamsu Rosid M. , Farhan  , Iskandar Chevy
Published: December 2019

Identification of permeable zones is an important aspect in the development and monitoring of geothermal fields. Permeable zones are generally associated with subsurface stress conditions and the presence of structures such as fractures in the reservoir. One of the geophysical methods to detect the presence of permeable zones is the shear wave splitting (SWS) microearthquake method. The microearthquake data recorded by seismograms in the period of January - April 2018. The SWS phenomenon occurs when an S wave propagates through an anisotropy medium. The rotation correlation technique is used to determine the SWS parameters; direction of polarization (ϕ) and delay time (dt) of the S wave. The results of this study indicate that the center area of study has high fracture density. The fractures maybe associated with the presence of wells where the largest steam is produced in the field and the appearance of more complex geological structures. The dominant direction of fracture orientation is relatively following the trend of local structures NW-SE and NE-SW.
Bibliometric Analysis for Site Selection Problems Using Geographic Information Systems, Multi-Criteria Decision Analysis and Fuzzy Method
Authors: Wigati Slamet Setio , Sopha Bertha Maya , Sri Asih Anna Maria , Sutanta Heri
Published: December 2019

The integration of Geographic Information Systems (GIS) and Multi-Criteria Decision Analysis (GIS-MCDA) are widely used in many fields. Nowadays, GIS-MCDA is combined with a fuzzy method, especially fuzzy logic, as the solutions for many problems, including site selection problem. Site selection is a process to find the most appropriate site with desired conditions by considering a number of criteria. This paper attempts to review various studies undertaken by researchers in order to implement GIS-MCDA and fuzzy method for the site selection problems. The aims of this paper are to provide an overview of the current insight of the topic, an overview of the most MDCA method and fuzzy method used, and to provide a gap for further research. Data analysis in this paper is divided into two sections, i.e. bibliometric analysis and network analysis.
The Development of Learning Module Environmentally Friendly Technologies Based Creative the Problem Solving
Authors: Suhartiwi Fenny , Islami Nur , Fakhruddin  , Yennita
Published: December 2019

The use of modules in science learning has a positive impact on science process skills. The purpose of this study is to develop eco-friendly technology learning modules based on Creative Problem Solving (CPS). This module consists of 3 parts, namely introduction, learning, and evaluation. In the learning section the steps of the CPS are explained on the contents of the material. The process skills of each meeting are made by an environmentally friendly technology product. The resulting product helps in solving environmental problems in everyday life. The results of the validation assessment get a valid category from all aspects of the assessment. The highest score is in the aspect of presentation and graphic components with values of 3.71 and 3.74. So this module can be used as an alternative solution to learning environmentally friendly technology.
Antibacterial Potential of Chitosan Extracted from Rama Shrimp (Thalassina Anomala) Carapace
Authors: Leksono Tjipto , Mus S , Annisa Z
Published: December 2019

The added value of the waste of Rama shrimp (Thalassina anomala) carapace could be increased by extracting it to be a chitosan through the stages of demineralization, deproteination and deacetylation. The aim of the research was to determine the ability of chitosan extracted from the carapace to inhibit the growth of pathogenic bacteria. Chitosan extracted from the shrimp carapace was showing its chemical characteristics, namely: the content of water 6.74%, ash 4.13%, nitrogen 7.5%, and deacetylation degree 71%. Chitosan was dissolved in 1% acetic acid. Antibacterial activity testing was carried out by using the well diffusion method, conducted by addition of chitosan at varied concentration (0%, 1%, 2%, 4% and 6%). The results showed that the chitosan had an ability to be antibacterial against Salmonella thypi, Escherichia coli, Staphylococcus aureus and Bacillus cereus. It was indicated by the clear zones formed around the well. The clear zone formed was indicating that the chitosan extracted from the carapace could inhibit the growth of pathogenic bacteria at a concentration of 1 %. The average of inhibition zone diameter for each bacterium was 11.54 mm, 11.46 mm, 7.78 mm, and 9.84 mm, respectively.
The Influence Surface Modification of CNT Using Surfactant to Formation of Composite
Authors: Heltina Desi , Fisli Adel , Wulan Praswasti PDK , Slamet
Published: December 2019

The nature of pure CNT has a hydrophobic surface and low dispersion stability. To increase CNT dispersibility, it is necessary to modify the CNT. One possible way to modify the electronic and vibronic properties of CNT is charge and functional transfer. Addition of surfactant to CNT is to increase the solubility of CNT in water which produces functional groups from the surface of nanotubes with anionic and cationic groups. The purpose of this study was to study the effect of surfactant addition on CNT treatment on CNT properties. Pure CNT samples that have been added to the surfactant are sonicated for 1 hour then dried. From the results of X-ray Dispersive energy characterization (EDX), there is an increase in the amount of oxygen in the CNT after the addition of surfactant compared to pure CNT. From the results of Fourier Infrared Transformation (FTIR) shows that the process of adding surfactants will produce functional groups on the surface of the CNT. The SEM characterization showed no morphological changes in CNT, this was also stated by the results of X-ray Diffraction (XRD).
Impact of Enviromental Riparia Change and Biodiversity Fish on Three Oxbow in The Nature Park Buluhcina, Kampar Riau Province
Authors: Yustina  , Nursal  , Syafii Wan
Published: December 2019

The research was conducted in three lakes in the area of the Park Buluhcina-Kampar on March to July 2019, aims to look at the impact of environmental riparia chage and diversity of fish species. This survey research methods, through a purposive sampling technique as the activity of residents in the neighborhood riparia in Baru Lake, Pinang Luar Lake, and Pinang Dalam Lake. Research parameters are: Characteristic riparia environmental and ecological aspects. The collection of data through open interviews and attempts catch per unit effort tool to use nets fishing gear step and dustpan. Ecological aspects of data analysis include the fish species composition and physical-chemical factors. Results human activity is causing changes in the environmental riparia setting in the TWA and the impact on environmental degradation and decline in species composition. Changes in environmental quality in the lake found the highest riparia Pinang Luar Lake indicated by a decrease in the plant canopy, increasing water temperature, a decrease in oxygen content and pH of the water, as well as the lowest of fish species diversity, the spread of the fish tends to uneven compared to two other lakes.
Application of Linear Congruent Generator in Affine Cipher Algorithm to Produce Dynamic Encryption
Authors: Laia Ofelius , Zamzami Elviawaty Muisa , Sutarman  , Larosa Fati Gratianus Nafiri , Gea Asaziduhu
Published: December 2019

Modification of the original message (plaintext) with the LCG random number generator algorithm and encryption with the affine cipher algorithm to produces a dynamic and safe random message (ciphertext) compared to just the affine cipher algorithm. The plaintext is converted to ASCII code and stored in a data list. The data list that contain the plaintext changes the position of the data where each plaintext column is moved to an odd column and even columns are filled by random numbers generated by LCG. The data list is then changed again by adding value to each column with random numbers generated by the programming language and then it encrypted with the affine cipher algorithm. The total number of ciphertexts can be twice as many as the plaintext. The results obtained are not the same ciphertext character even though the plaintext has the same character. Ciphertext generated in the first run program will be different for the next run program or dynamic encryption. To restore a ciphertext to the plaintext is done based on the affine cipher decryption function and the steps to modify the message that was done before.
Round Robin Algorithm With Average Quantum Dynamic Time Based on Multicore Processor
Authors: Simarmata Emma Rosita , Lumbantoruan Gortap , Nainggolan Rena , Napitupulu Junika
Published: December 2019

Modern operating systems that are widely used today, have used a multiprogramming system and use a multicore system to solve multiprogramming. Multicore systems provide greater efficiency than a single processor running on a single chip. The efficiency of the multicore system in completing its tasks is very dependent on the CPU scheduling algorithm used by the operating system. Round Robin algorithm is one of the CPU scheduling that is widely used in multiprogramming. With this algorithm, the CPU will divide the time for each process given the same time until the entire process in the queue is complete. In this study, the researcher improvised the Round Robin algorithm on a multicore processor system to execute the processes contained in a single queue queue that is to give a quantum time based on the average bursttime of the entire process in the queue. In order to minimize waiting time and turnaround time throughout the process.
The Framework of Start-up based Transportation Regulation in Indonesia
Authors: Lubis Arif Ridho , Lubis Muharman
Published: December 2019

The growing progress in the IT field itself has an impact on the changing pattern of people’s lives, in Indonesia technological progress can be seen from the more start-ups created by the young generation, the start-up is used for the means of transportation. The start-up itself is used to facilitate the public to deal directly with the means of transportation. The problem that arises today is the absence of regulations governing the use of start-up in transportation, due to the current transportation regulations of the government, nothing is set about start-up, and it is not even existed in Indonesia. Therefore, it is required to have synergies from all stakeholders associated with this to have a meeting to make regulations so that the technological progress itself increasingly positive impact in the community.
Application Of Hill Cipher And LSB + 1 Methods For Messaging In Messages Inpicture
Authors: Haryanto Edy Victor , Nasution Eka Dipa Pratama , Akbar M. Barkah , Riza Bob Subhan
Published: December 2019

This research discusses encryption and security description of files in images with hill cipher cryptography and steganogography using the lsb + 1 method, testing the results of cryptographic and stegano data security applications that are equipped with cryptography, then from the results the trial was done with the hill cipher method, by displaying data in the form of files that want to do the data security. The results of the DIPA trial with a file size of 17.2 MB after being encrypted into RNPF with a file size of 17.2 MB.
IT Roadmap to Improve Business Strategy using TOGAF ADM: A Case Study of Government-Owned Electricity Company
Authors: Thea Nisaa’ Andi S. , Asti Amalia N.F. , Lubis Muharman
Published: December 2019

Service industry in Indonesua has applied IT to conduct and establish their business process through automation and integration in order to achieve effectiveness and efficiency, especially in the industry of electricity. However, there is still no alignment between business strategy and IT assets. Thus, it is necessary to implement Enterprise Architecture to have appropriateness between the organizational’s goal and the strategy’s execution in the field. This research identifies various components in the respected industry by implement TOGAF ADM as the framework through observation and interview, with begin with preliminary phase until migration planning. The purpose is to create IT Roadmap in the form of recommendation for the electricity company in order to achieve their short and long term objectives.
Analysis Of 4g Internet Technology Quality In Medan City With Mobile Communication System
Authors: Purba Mufria J , Manurung Samuel
Published: December 2019

LTE technology is an internet network signal technology that is capable of producing a data rate of 100 Mbps. With the existence of 4G network technology, users can download or upload data with high capacity. But with this ability if done simultaneously by many users, it will cause high interference that can reduce network quality. Some factors that can determine network quality are the lower packet loss, the low delay and high throughput value. The purpose of this study was to observe the quality of internet networks with 4G network signals in densely populated or densely populated areas in Medan City. The method used in this study is the drive test method conducted by researchers and choosing one of the telecommunications providers in Indonesia, then the measurement results will be compared with the calculation in theory. With the existence of this research is expected to be able to provide a concrete picture of the quality of the 4G network in the city of Medan.
Analysis of Infrared Sensors As a Non Invasive Glucose Measuring By Applying Fuzzy Algorithm
Authors: Gunawan G , Harianto Budi , Elsera Marina , Fachrizal Ferry
Published: December 2019

Medical equipment used to perform tests or test blood sugar levels in hospital laboratories generally applied using invasive methods namely by taking a patient’s blood using a needle. This is a constraint and the price of equipment and kit stripnya still relatively expensive. Also feared needles used to injure the patient in taking a few drops of the patient’s blood can lead to infection and other germs if needles used are not sterile. It is not rare some people are reluctant to test blood sugar levels. So that a person can not monitor the blood sugar levels in their bodies quickly and accurately. The measurement method of blood sugar levels in non-invasive rarely occurs because accuracy is questionable. Measuring tools, non-invasive blood sugar levels even yet widely used as medical devices. Of the problems that occurred the device technology development research of infrared sensors as a measure of non-invasive blood sugar levels in an attempt early detection and prevention of diabetes mellitus is necessary to get a tool kit prototype test blood sugar levels are cheap and easy to use in the community. Infrared is light waves that can be absorbed by a solution of glucose in the blood so that the method of technology development device’s infrared sensor can easily measure blood sugar levels without injuring the body (non-invasive) for the extraction of blood. To obtain equal accuracy invasive methods will be tested on the finger sensor readings and also earlobe.
Control the Water wheel with the Internet of Things
Authors: Azmi Zulfian , Zarlis Muhammad , Mawengkang Herman , Efendi Syahril
Published: December 2019

The waterwheel is a component of the spinning water that energizes the rotating axis. Waterwheel is a means to convert water energy into mechanical energy in the form of torque on the shaft of the mill. One of the functions of water is to improve water quality. But the use of waterwheels manually is inefficient, because the mill works continuously even though the water quality is good. So it takes intelligent algorithm to be able to produce waterwheels that can benefit the local community for the needs of high protein foods. By adjusting some variables in determining water quality to improve the water quality of shrimp habitat, consisting of: water pH, water temperature, disoolved oxygen and salinity. And in uncertainty input from existing parameters can form a probability distribution that determines water quality and the movement of the mill. The sensor reading results into a reference microcontroller in sending PWM signals on the boost converter as DC motor drivers to run waterwheels slowly or quickly based on inputs. And with the Internet of Things (IoT) technology will make it easier to control, more practical, effective and efficient.
User Experience in Mobile Application Design: Utility Defined Context of Use
Authors: Lubis Muharman , Sutoyo Edi , Azuddin Muna , Handayani Dini
Published: December 2019

Mobile application has been offered tremendous benefit to the user in providing solution especially related to accessibility and availability. Product functions are important but with the better user experiences, it will have more advantages, which somehow increase its level adoption and retention within context. User experience (UX) is the outcome that this study want to achieve through implementing user centred design in the process by defining the set of methods and phases, which are loosely connected each other to solve the problem arisen. This study identified the lack of integration process within driving communities to have service in motorcycle driving practice, permission letter and rental.
Enhanced of House Security System Based Pir Sensorand Microcontroller Based
Authors: Wimatra Ayub , Prayitno Hadi , Nasution Darmeli
Published: December 2019

Technological developments that are so rapid nowadays make people want to always be creative and trigger to create something new which can be applied and can be used easily and practically and can be controlled from close and long distance. In this research, what can be adopted is how to design a home security system using a microcontroller-based PIR (Passive Infra Red) sensor. Where this security will work if the PIR sensor (Passive Infra Red) detects the presence of unwanted humans into the house, and then the microcontroller processes and instructs cellphone 1 to send alarm signals in the form of SMS (Short Message Service).
Analysis of the Markov Chain Approach to Detect Blood Sugar Level
Authors: Lubis Arif Ridho , Prayudani Santi , Lubis Muharman , Al-Khowarizmi
Published: December 2019

Diabetes mellitus is a health disorder in which the level of sugar in a person’s blood is getting higher due to the lack of insulin or insulin receptors in the body do not properly function. Indonesia ranks the 4th largest in the number of Diabetes Mellitus sufferers in the world. Many people initially did not know that they had diabetes mellitus and only found out that they had had diabetes after experiencing some complications in some organs of the body. To predict blood sugar levels, this study tries to use one method of probability approach, i.e. Markov chain. It is a calculation technique that is commonly applied in modeling many conditions so that this technique is applied to help predict changes that might occur in the future. The results of the analysis applying this method could predict blood sugar levels, which then the results can be used as material or basis for creating a system that is able to help people affected by diabetes mellitus in predicting the high and the low of blood sugar levels.
Improvement Suggestion Performance of Blowing Machine Line 4 with Total Productive Maintenance (TPM) Method at PT. Coca-Cola Amatil Indonesia MedanUnit
Authors: Irwansyah Defi , Harahap M R F , Erliana Cut Ita , Abdullah Dahlan , Sari AyuEsteka , Siregar NurintanAsyiah , AchmadDaengs GS , Indahingwati Asmara , Sumartono Eko , Wilujeng Sri , Nurmawati  , Subekti Purwo , Kurniasih Nuning , Rosalina Febrianti , Hartono H
Published: December 2019

Maintenance is an activity to maintain facilities or equipment of the factory and make repairs or adjustments to the necessary replacement to satisfactory condition of production operations in accordance with what is planned. Companies often experience damage to the Blowing machine so that interconnected machines cannot be operated. The purpose of this study was to improve the performance of Blowing line 4 engines with the Total Productive Maintenance (TPM) method at PT. Coca-Cola Amatil Indonesia Medan Unit, also to determine the level of Blowing machine performance based on the analysis of overall equipment effectiveness (OEE) at PT. Coca-Cola Amatil Indonesia Medan Unit. The method used in this study is the overall equipment effectiveness (OEE) method to measure Ishikawa’s treatments and diagrams to compare and propose low engine performance. The results of data processing shows machine maintenance has not comply the OEE standards in July 81.48%, August 81.48%, September 78.07%, October 81.22%, November 78.08%, and those that fill the standards in June amount to 86.48%, with losses that most affect the effectiveness of equipment in line 4 blowroom machine is Equipment Failure Losses of 11.42% based on the results of the study, the proposed improvement in engine performance is to provide training to employees, and increase operator awareness. against engine damage, thus the production process will run smoothly.
Project Evaluation for Business and IT Alignment with Enterprise Architecture for Water Distribution Company
Authors: Wardani Anita Eka , Asti Amalia N.F , Gumilang Soni F. , Muharman Lubis
Published: December 2019

Actually, there are gaps exist in the development of many large companies, which related to the automation and integration between the business and technology information systems within the company. Enterprise Architecture (EA) helps in aligning the business functions of a company with existing applications tooptimizethe existing business processes for the purpose of growth, revenue and satisfaction. For the creation of a well-integrated system, EAprovide logical design to build the sequence of connecting each function either in the structure, task and technology to achieve company goals. A well-designed information system (IS) architecture can be one of the best solutions to enhance the ability and capability of the company in serving its customers especially with the sustainability, maintainability, extendibility and maintainability. Furthermore, good information system can accommodate the company’s needs to improve the company’s performance process where the useful information system have been generated through careful planning and preparation. EA is a solution that can be used in designing systems within the company by integrating 4 (four) domains namely Business, Data, Applications, and Technology. This study provide the evaluation within the company that is expected to give preliminary result of process to be dealt with in order to increase the performance and support the business processes in the company.
Jaro–Winkler Distance Improvement For Approximate String Search Using Indexing Data For Multiuser Application
Authors: Friendly F
Published: December 2019

Word searching method has been developed in many ways and named as: Hamming Distance, Jaccard Distance, Jaro Distance, Jaro-Winkler Distance, Levenshtein Distance, etc. Those methods are used for lexicographic comparison to find words according to the similarity of the words which searched. The time needed for searching by using these words distance method can cause overhead as some difference user might try to search the same words all over. If these method is used in a multi user application where the user generally searching for some keywords repeatedly, then the user might have a longer searching time compared to exact search. In spite of this problem, we try to propose a method where the first search result of the previous user, will be recorded to the database for future usage by indexing the search keywords. In order to try this method, we use Jaro-winkler Distance method to search words. From the test result show that combining indexing and similarity word searching by using Jaro-Winkler Distance method can decrease the searching time to 90-92% compared to just using the Jaro-Winkler Distance method only. As the searched data increased, the processing time can be shorten.
Application of Palembang City Info as a Sharing Media of Urban Information in Palembang City
Authors: Tenggono Alfred , Fariadi Nurwanto
Published: December 2019

Information technology advancement had become a primary need for the use of smartphones in society. The use of smartphones in society was generally used to interact on social media such as: Facebook, Instagram, Path, etc., and the applications of message exchanged such as: WhatsApp, Telegram, Blackberry Messenger, etc. The amount of social media users in Indonesia made people not only used mainstream news media as a news reference, but also people tended to make social media as a reference in searching for information. Information which was often shared by social media was information which related to urban problems such as traffic congestion, traffic accidents, criminal acts, loss, and events which took place in a city. Answering the urban problems which occur, society needed an Android based mobile application which ccould be used to share information about events that happened. With this application, users could find out various information about the activities that happened in Palembang city in real-time. This application allowed users to convey information in real-time if the users found something or lost something, both goods and people, and this application allowed event makers and community to promote program or community they made easily, so that other users could also search and come easily to the event or community place held.
Pool Water Acidity Gauge Using Fuzzy Mamdani Method
Authors: Lubis Abdul Jabbar , Khair Ummul , Sembiring Arnes , Zulkarnain Ade , Siregar Dodi
Published: December 2019

Swimming pool is one of the means of sports and play that is fun. Swimming pools must also be considered clean. In order to be replaced with new water. The goal is so that pool users are not infected with infectious diseases due to the dirty water inside the pool. The Mamdani method is the most common method when discussing fuzzy methodology. It was Ebrahim Mamdani who first proposed this method in 1975 when building a steam engine and boiler control system. Mamdani uses a collection of IF-THEN rules obtained from experienced operators / experts. Mamdani’s work is actually based on the article “The Father of Fuzzy, Lotfi A. Zadeh: fuzzy algorithms for complex systems and decision processes.
Physical and Chemical Characteristic of Virgin Coconut Oil under Mix Culture Fermentation Technique
Authors: Asiah Nurul , Astuti Rizki Maryam , Cempaka Laras , Setiani Rahmahdona
Published: December 2019

This research focus on applying of mixed culture fermentation methods to produce high quality of VCO. The culture was mixed by combining several microorganisms that play a role in this VCO fermentation are yeast Saccharomyces cerevisiae, Lactobacillus plantarum bacteria, and Rhizopus sp. Research activities were conducted in two stages, the first stage is the production of VCO by fermentation using mix culture. The products were analyzed will consist of a large calculation of oil yield, physical properties analysis (moisture content and refractive index), chemical sift analysis (acid number, iodine number and peroxide number) and organoleptic test. Results showed that of all combination SL, SR, LR, and SLR have apropriate value compared with SNI and APCC standards.
The Detection of Aedes Aegypti Mosquito Resistance With Biochemical Test Based on Non-specific Esterase Enzyme Activity and Monooksigenase Enzyme in Ternate City
Authors: Tomia Amalan , Hadi Upik Kesumawati , Soviana Susi , Retnani Elok Budi
Published: December 2019

Broadly speaking, the aim of this research is to examine and analyze the effect of Efficiency, Fulfilment, Reliability, Privacy Variables on Customers’ Satisfaction on account opening services via the online system “Jenius BTPN”. Determination of a sample of 100 respondents through a stratified random sampling approach with research locations at BTPN Bank. The research approach uses quantitative while the data analysis method uses multiple linear regression. Analysis test equipment using SPSS, version 22. The results of the study indicate that the Efficiency does not affect customer satisfaction (Sig 0.475> 0.05); Fulfillment affects customer satisfaction (sig 0.003 <0.01); Reliability does not affect satisfaction (sig 0.700> 0.05); Privacy has a significant effect on customer satisfaction (sig 0.000 <0.05); Privacy is the most dominant variable influential. R2 test is 65.9%
Optimization of medical hazardous waste management in community health centers of depok city using analytical hierarchy process (AHP) method
Authors: Nursetyowati Prismita , Nadifameidita Fadilla Qatrunsalwa , Fairus Sirin , Surya Irawan Diki , Rohajawati Siti
Published: December 2019

The 35 Community Health Centers in Depok City have limited resources and other duties besides serving patients. This limitation makes the Community Health Centers difficult to comply with the regulation of Regulation of Environmental and Forestry Ministry Number 56 Year 2015 on “Procedures and Technical Requirement of Hazardous Waste Management from Healthcare Facilities”, therefore there is need for adjustments and appropriate decision making in hazardous waste management, which can be done using Analytical Hierarchy Process (AHP) methods. AHP methods use 3 principles, which is hierarchy making, priority determination, and consistency ratio. The objective of this research is to choose the most optimal alternative for hazardous medical waste management, starting from reducing, sorting, storing, transporting, treatment, until burial. After conducting pair comparison from all respondent, the data processing is done using Expert Choice 11 software. This software helps in choosing alternatives via many criteria by inputting the comparison value from each respondent and display the priority value from each alternatives. The chosen alternative is as follows: reducing wasteby a good housekeeping, sorting phase with two containers or plastic bags, storing phase with freezer as described in Regulation of Environmental and Forestry Ministry Number 56 Year 2015, transportation phase using closed truck, off-site treatment, and burialusing secure landfill.
A Design of Building Prototype of Micro Hidro Hybrid Electricity and Solar Cell as A Learning Media for Electrical Engineering Practicum
Authors: Sugeng  , Rokhman Taufiqur , Paridawati  , Sofwan Agus
Published: December 2019

In the Department of Electrical Engineering Islamic University “45” Bekasi, it does not have a laboratory of Renewable energy. In this research, a hybrid power plants have been designed and combined with hydroelectric power plants and solar power plants. From the results of the design of the Solar Cell Power Plant, the results obtained for 1 to 4 pieces of 100wp solar panels obtained the generation voltage of 21.12 volts generating power of 18.80 Watts on average for 7.8 hours. Whereas, for MHP the average voltage is 10.81 Volt and the generation power is 41.48 Watts for 8 hours of use.
Analysis of Construction Contract Project Comparison with PNPM Based Projects in Construction Projects (PPIP Project Implementation Study In Tuban District)
Authors: Nugroho Laksono D. , Witjaksana Budi , Oetomo Wateno , Setiawan Andi
Published: December 2019

The implementation of construction projects generally carried out in construction contracts results in community apathy because they are not actively involved in the planning, implementation and maintenance operations of construction projects. The government launched the National Community Empowerment Program (PNPM). One of the PNPM programs initiated was the Rural Infrastructure Development Program (PPIP). Election Implementation of a construction project using a construction contract or community empowerment by considering several criteria and sub criteria so that the implementation of construction projects can be carried out effectively and efficiently. The measures discussed in implementing construction projects are time, cost, quality, community participation, administration, and independence. The Analytical Hierarchy Process (AHP) method is used to analyze the results of the questionnaire so that the criteria and sub criteria weighted as a consideration for the selection of construction projects. Based on the results of the analysis, we obtained the weights of the construction project implementation criteria, namely: time with a load of 0.198, costs with a capacity of 0.203, quality with an amount of 0.178, community participation with an amount of 0.118, administration with a weight of 0.139 and independence with a weight of 0.139. Then it is known that the construction contract weight is 1.045 and the influence of community empowerment is 0.955.

Furthermore, the calculation of alternative weights carried out so that the criteria obtained: time, quality and administration took into account in the construction contract. Considerations: costs, community participation, and independence are taken into consideration by the project in community empowerment. Based on the results of the analysis shows that the implementation of construction projects is better done using a construction contract because it explicitly incorporated in its accountability. The cost criteria are the most significant factor and sub-criteria the accuracy of the start schedule of implementation occupies the highest score in the selection of the application of the construction contract.
Analysis of the Embankment Stability with Flat Concrete Sheet Pile (FCSP)
Authors: Gardjito Edy , Limantara Arthur Daniel , Ridwan Ahmad , Subiyanto Bambang , Heryanto Budi , Lilik Sudarmanto Hery
Published: December 2019

Problems of the embankment to be encountered above soft soil layer area are the stability of embankments such as: sliding/landslide, spreading, and sinking due settlement on soft soil layers excessive. The requirement of the safety factor of slope stability at embankment is relatively big, that is (SoF) ≥ 1.70 for approach bridge location and (SoF) ≥ 1.40 for approach bridge location. Safe Number on Model G1 Sheet pile Earthquake Mode is 1.356. So the minimum safe number for earthquake load (SoF) = 1.356 > 1.10 has been fulfilled. The program output produces a maximum moment value of 130.21 kN.m/m. The crack moment capacity of FCSP B 320.500 material is 66.5 kN.m/0.5m. When equivalent in the form of the moment of each meter length then the moment of resistance is 133 kN.m/m. Thus capacity resistance the moment of FCSP able to resist maximum moments, maximum moment value for 130.21 kN.m / m < moment of resistance is 133 kN.m m (safe). However, it is recommended to use minimal FCSP C 320.500 or greater for security reasons. The crack moment capacity of FCSP C 320.500 material is 72.4 kN.m/0.5m equal to 144.8 kN.m/m.
Optimization of Cost and Time of Repair and Rounding of Roads With Way Pavement Design Manual Method 2013
Authors: Tjendani Hanie Teki , Oetomo Wateno , Witjaksana Budi , Priyoto  , Sumadi
Published: December 2019

Smoothness, safety, and comfort of traffic depend on road pavement conditions. If the width of the road is narrow, damaged, hollow, the traffic will disrupted; the travel time will increase, fuel consumption increases, the risk of damage to high vehicles and so on, if there is no immediate improvement in the form of an increase, the damage will increase. To deal with this problem, it is necessary to research and plan road improvements with widening, an increase in existing pavements with overlays, the need for cost and time of implementation. The Mojokerto - Ploso road segment is an alternative route connecting the cities of Mojokerto - Jombang, and Lamongan. Based on the status of the road is the provincial road, and based on the function is the Collector’s road. Furthermore, for the planning of improvement and widening required subgrade CBR data, for overlay planning, a Test Pit data is needed to determine the existing pavement structure and traffic data. In determining the road widening plan, the 2015 revised Road Pavement Design Manual (MDP) method for overlaying was used with the Planning Guidelines for Pt-T-01-2002-B Bending Pavement Thickness and calculating the Budget using Work Unit Price Analysis (AHSP ) 2013, creating a Schedule of Work (Time Schedule), as well as calculating the critical path to find out the critical path in carrying out the work. To planning data analysis is needed - traffic data, land investigation, layer thickness calculation on widening, overlay layer thickness, cost requirements, execution time and critical track path. From the calculation results, the road widening obtained AC = 5 cm pavement arrangement, ATB = 14 cm, CTB = 30 cm, Class B Aggregate = 20 cm, the optional load support layer = 85 cm, using geogrid as the selected urine separator with subgrade, in the old pavement repair (overlay) with an overlay, the AC = 5 cm arrangement, ATB = 14 cm, at a cost of Rp. 19,200,000,000.00 (Nineteen billion two hundred million rupiahs) with a 20-year plan life, as well as a 6-month implementation time.
Effectiveness of CCDP-IFAD Program to Fishermen’s Incomes of Fish Smoked in Ternate City and The Right Strategy (Case Study fish Smoked IndustriGroup at Village Faudu, HiriIsland)
Authors: Laitupa Ibnu Wahab
Published: December 2019

Coastal Community Development Project–International Fund for Agricultural Development (CCDP-IFAD) program presents to effort economic empowerment, one of the industrial development effort of smoked fish. The city of Ternate is located in a geographical area and wide in North Maluku, two great potentials that can be optimized for the development of fishermen’s economy. So that, this research was conducted as evaluative research and expected useful to its industrial development. The purposes of this research are fathom of; (1) the program effectiveness of CCDP-IFAD through fishermen’s incomes of fish smoked in Faudu Village of Ternate City and (2) to formulate the right strategy in fish-smoked industrial development in Kelurahan Faudu. The research method was qualitative and quantitative research. Inference analyses sampling in pairs to compare revenue value before and after doing the program, and SWOT analysis to formulate right strategy. The result of the research showed that (1) inference analyses sampling test concluded that the program was not significantly effect to fishermen’s revenue. (2) the result of SWOT analyses had the best strategy was optimization the power of resources both natural or human resources and supporting institutions and the chance Such as high market absorption, tourism and still open diversity to prevent the weakness and threatens. The strategy was evaluated to stimulate quality of life through developing business aspects.
Development of a Small-Scale Vertical Axis Wind Turbine for Generation of Compressed Air for Pneumatic Systems
Authors: Adeodu A. O. , Daniyan I. A. , Raji O. R. , Bello K. A. , Oloyede O. R.
Published: December 2019

This work presents the development of a cost effective vertical axis wind turbine for generation of compressed air using locally sourced materials. The design of the wind turbine takes into consideration the reduction in the weight and size of the turbine thereby lowering production and installation costs. This increases the efficiency by increasing the resistance from dynamic loads and reduction of acoustic noise discharge. The following locally sourced materials were employed for the development of the wind turbine compressed air system: acrylonitrile butadiene styrene, teflon, polyethylene terephthalate, mild steel, rubber and wood filings. The blade design is of the form airfoil shape of NACA 2412 type typical of air crafts wings with a chord of 50 mm and utmost camber of 2% sited 40% (0.4 chords) from the leading edge and utmost thickness of 12% of the chord. The aerodynamic properties include angle of attack which is 2.2° and the utmost twist angle which is 25.66°. From the performance evaluation, maximum tip speed ratio of 0.9 was achieved as well as power output generation of approximately 14 watt at 10.2 m/s wind speed. The findings of this project identify compressed air energy storage as a viable alternative to chemical energy storage generated from wind turbines. The developed turbine will contribute significantly to the effective conversion of wind kinetic energy into pressure energy as opposed to electrical.
Indoor Radon Concentration Survey in Bank Basements in Three Nigerian Cities
Authors: Adegun I. K. , Anyaegbuna B. E. , Olayemi O. A.
Published: December 2019

Basement workplaces are considered as confined environment with challenging indoor air quality having higher than normal pollutants particularly that of soil gas origin. Radon a major soil gas infiltrates and accumulates within indoor spaces and becomes harmful in the absence of natural or mechanical ventilation. Radon level in bank basements in Ilorin, Lagos and Akure have been sampled and analysed in this study. The paper presents the investigations conducted to measure the radon concentration in the occupied basement component of the bank buildings. Most workers in basements are unaware of radon, and there is limited documented research on its health hazards in Nigeria. The survey parameters were radon concentrations, floor levels, geographical locations and the influence of atmospheric conditions. Corentium monitor, a continuous, digital radon monitor, in addition to, temperature meters and Prologue wireless weather station were used for the experiment. The result showed an indoor radon concentration and effective doses annual mean values of 23 Bq/m3 and 0.0896mSy/y respectively in the occupied basements.
Effects of kenaf core and bast fibers as dispersing phases on low density fiberboards (engineered wood)
Authors: Anyanwu B.U. , Adebomi O. A , Fayomi O.S. , I Kuye S. , Igba U.T. , Oluwole O.O.
Published: December 2019

Fiberboards are engineered woods made from a composition of wood chippings, wood fibers, sawdust etc., glued together with adhesives. Low density fiberboards (LDF) are part of the classes of fiberboards widely used in Nigeria because they are readily available, relatively cheap and offer good aesthetic values, compared to conventional woods. However, they possess low strength, durability and lifespan, thus making them susceptible to damage during service. The aim of this study was to determine the effect of kenaf core and bast fibers (Hibiscus cannabinus)as one of the dispersing phases in low density fiberboard production, also known as particleboards. The materials and methods employed in the study, followed procedures in established standards and literatures. The different composite materials were weighed and mixed properly for about 10 minutes to ensure homogeneity in the mixture. Thereafter, the materials were placed in a mould of uniform thickness and compressed to different fiber board samples using a compression press machine, for about 10mins. A series of physio-mechanical tests such as water absorption, density, tensile strength, modulus of elasticity and modulus of rupture were conducted on the developed fiberboard samples as well as the control samples. The results showed that the average values for water absorption and density of the developed samples enhanced with kenaf core and bast fibers were 5.480% and 0.027 g/cm3respectively. These values compare well with that of the control samples. Also, the tensile strength, modulus of elasticity and modulus of rupture of samples enhanced with kenaf gave average values of 31.842 MPa, 2.920 GPa and 16.58 N/mm2respectively. These values also compare well with that of the control samples. From the results gotten and all the properties determined, the study showed that kenaf core and bast fibers can be employed appreciably as dispersing phases for low density fiber board (LDF) composite production.
Prospects and challenges of cathodoluminescence imaging in solid-state devices: A brief review
Authors: Emetere M.E , Adeyemo N
Published: December 2019

The prospect of cathodoluminescence (CL) imaging is evident in its multi-versatile application. For almost three decades, the use of CL imaging in solid-state research has evolved into a reliable characterization tool. In this paper, a chronological review on the theoretical dynamics of CL on semiconductor and nanoscale materials was presented. It was concluded that the optimization of the CL imaging process depends on the microstructural abnormally of the sample.
Substrate effect on the morphology, structural and tribology properties of Titanium carbide thin film grown by RF Magnetron Sputtering
Authors: Abegunde O , Akinlabi E T , Oladijo P
Published: December 2019

Substrate – coating behaviour plays a crucial role in determining the efficacy of the resulting properties of thin film coating. This research work studies the impact of two different substrates (Ti6Al4V and CpTi) on the mechanical properties of Titanium carbide thin film coating deposited using RF Magnetron Sputtering. The tribology properties were characterized using Nanoscratch and Tribo-tester. GIXRD and FESEM were used to study the structural and surface morphology of the coatings. The micrograph images of the FESEM show a similar trend for the film distribution while the GIXRD highest peak intensities vary for the coating. Spallation, bending crack and delamination of the film were noticed under high load condition and the micro-scratch result shows good adhesion between the coating and the substrates.