bluuebunny/crossref_metadata_2025_split huggingface dataset:
Antibacterial Potential of Chitosan Extracted from Rama Shrimp (Thalassina Anomala) Carapace
Authors: Leksono Tjipto , Mus S , Annisa Z 
Published: December 2019

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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.