Indonesia Conference Directory

Corresponding Author
Riyan Arthur

Institutions
a) Faculty of Engineering, State University of Jakarta
Jl. Rawamangun Muka No.1 Jakarta Timur 13220
arthur[at]unj.ac.id

b) Faculty of Engineering, State University of Jakarta
Jl. Rawamangun Muka No.1 Jakarta Timur 13220
daryati_sr[at]unj.ac.id

Abstract
The Construction Vocational Education System in Indonesia was initiated based on competency and work-related experience. The problem of competency measurement is not the assessment but the relevance of the world of work. Therefore, it is very important to develop a focus on performance and alignment with work. In this paper, a construction worker instrument is developed that measures competency in building construction vocational education. Measurements and assessments further highlight procedures and results that are integrated with the work applied

Keywords
instrument; construction; building; workers

Topic
Civil Engineering

Link: https://ifory.id/abstract/Tn7bHtrMGgkf

Corresponding Author
leni sri mulyani

Institutions
Biology Department, Institut Pendidikan Indonesia

Abstract
Abstract Cheese is commonly derived from cows milk by separating whey and curds through a fermentation process, involving both aerobic and anaerobic microbial activities. Cheese making is done through a process called milk coagulation with the help of rennet. However, rennet is not easily obtained and rather expensive. Fortunately, rennet can be substituted by cermai fruit extract in this milk coagulation process. The present study aims at determining the concentration of cermai fruit extract thatcan optimally speed up the clumping process of FH cattle milk in cheese making. The extracts were obtained through smooth blending, filtering, and squeezing. Five experiments were conducted using extracts with different concentrations: 50%, 60%, 70%, 80%, and 90%. The results show that 90% is the most optimum concentration of cermai fruit to help the coagulation process in cheese making. The milk coagulated in the average time of 5.4 minutes. To conclude, cermai fruit extract could determine the milk coagulation process time period and can be used as a substitute for rennet

Keywords
concentration, cermai fruit extract, cows milk.

Topic
Biology

Link: https://ifory.id/abstract/BWZh23gb7zLy

Corresponding Author
Adzikirani Adzikirani

Institutions
State Polytechnic of Malang

Abstract
In this paper, the wideband planar sleeve antenna with two sleeves on the upper side and two sleeves on the bottom side are analyzed numerically. In the previous study, the wideband planar sleeve antenna is used at frequency 3.5GHz. The purpose of this research is addressed to analyzed the wideband planar sleeve antenna in the range frequency of 400-4000 Mhz by using WIPL-D EM Simulator by adjusting the antenna parameter. The antenna upper sleeve, lower sleeve, the length of the antenna and the distance between the lower and upper sleeves are adjusted. The result shows that the wideband planar sleeve antenna is achieved. When the length of the upper sleeve is increased, the antenna will work on lower frequency but the return loss slightly reduced, the same effect will be gained by increasing the lower sleeve size, but its not affecting the lower frequency. When the antenna length is increased, the return loss of the antenna is reduced. Furthermore, the distance between lower and upper sleeve affects the return loss characteristic. This is indicated that by adjusting the length of the antenna parameter, the antenna is applicable for many systems, such as television system and the ISM system.

Keywords
wideband planar sleeve antenna, WIPL-D EM Simulator, ISM

Topic
Electrical Engineering

Link: https://ifory.id/abstract/69BMzghVDjXp

Corresponding Author
rahmad santoso

Institutions
State Polytechnic of Malang

Abstract
Radiant charger is a free energy device that can be applied to produce electricity. The terms free energy means that this equipment does not use fuel, such as fossil fuels to produce energy. This research aims to design and analyze a prototype of radiant charger using five coils and five neodymium permanent magnets. In this research, a primary battery is needed as a source to generate mechanical work to rotate the rotor, also a coil and transistor to charge a secondary battery before the primary battery runs out. The results of the design and testing of the device produced a rotor rotation of 1020 rpm at 346 volts.

Keywords
Radiant charger, free energy, magnet permanent

Topic
Electrical Engineering

Link: https://ifory.id/abstract/4ynRN7ULjXqt

Corresponding Author
Amalia Amalia

Institutions
State Polytechnic of Malang.
Jl. Soekarno Hatta No. 9 Malang 65141

Abstract
The Fruits and vegetables are commercial commodities that are high in demand, recently. However, pest attacks are the main cause of crop failure. The common activity of farmers is that they spend their time just to filter vegetables that are still using manual systems. By using an automatic watering system with a soil moisture sensor and a temperature sensor based on Fuzzy Logic can provide water to vegetables according to their needs. In the practical, the Chinese Greens Cabbage have been watered with automatic systems. The results show that automatic watering systems have better production than manual watering systems. The soil moisture sensor output produces a low or high output. When heating the soil 80%, it shows moist soil conditions and when soil moisture is 40%, the soil conditions produce dry output. Based on the testing that has been done, it is obtained that the ideal temperature that allows vegetables to grow is 24 Celsius, soil moisture level of 27%, with a duration of 30 seconds watering. As a result, the automation systems promises for the cultivation of vegetable plants around the home living.

Keywords
Soil Moisture Sensor, Temperature Sensor, Fuzzy Logic, Fuzzy Mamdani

Topic
Information Engineering

Link: https://ifory.id/abstract/ZgLevnd8CXFm

Corresponding Author
rohman dijaya

Institutions
Universitas Muhammadiyah Sidoarjo

Abstract
Maternal and Child Health Service is a health service that makes it easier for the public to monitor the growth and development of infants and toddlers. The people who get this health service are infants less than one year old and toddlers aged 1 to 5 years. Maternal and Child Health Service in the community, especially in rural areas, the medical equipment used is still inadequate, for example to weigh infants and toddlers, maternal and child health official use scales commonly used to weigh rice. Periodically babies and toddlers are weighed by medical personnel, and the results are then recorded in the maternal and child book. In some cases, the registration process is still not efficient, because the possibility of the book being lost. In this research, first coding from four sensors used are heart rate sensor, weight sensor, temperature sensor and ultrasonic sensor. In the microcontroller, the Artificial Neural Network artificial intelligence method is embedded to learn from inputs to classify decisions / action information from the sensor medical record results. Medical record data and learning outcomes from Artificial Neural Network will be sent using Internet of Things modules on the server so that they can be accessed by the application server both web and mobile. Visualization of medical record data and the results of the health conditions of infants and toddlers recapitulated on the cohort book periodically

Keywords
Artificial Neural Network, Child, Internet of Things, Health Service, Maternal

Topic
Computer Science

Link: https://ifory.id/abstract/hGg9n8pBXxEK

Corresponding Author
Heni widyaningsih

Institutions
Fakultas Ilmu Keolahragaan
Universitas Negeri Jakarta
Email : heniwidyaningsih[at]unj.ac.id

Abstract
Each teacher has to have four competencies, namely pedagogic competence, social competence, personality competency and professional competence. This study aims to determine the influence of teaching skills and effective communication on performance of physical education teachers.The methodology in this study is associative quantitative by using multiple correlation models.The population and sample are physical education teachers who took the program of PLPG on Universitas Negeri Jakarta.The results of this study are (1) there is significant influence between teaching skills to performance of physical education teachers as professional competencies.(2) there is significant influence between effective communication to performance of physical education teachers as professional competencies. (3) there is significant influence between teaching skill and effective communication to performance of physical education teachers as professional competencies.

Keywords
Keywords: Teaching Skills, Effectif Communication, Physical Education Teacher

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/9Tjkq8WJbz4m

Corresponding Author
Erlillah Rizqi Kusuma Pradani

Institutions
State Polytechnic of Malang

Abstract
This paper discusses a reaction wheel control system. A reaction wheel pendulum is good example of a non linear and underactuated system, which attracts control system researchers to develop many control algorithm. The reaction wheel plant is usually used for studying advanced control system courses. In this paper, a mathematical model of the state space is discusses. A proposed LQR (Linear Quadratic Regulator) control algorithm is explained. Simulation and real time experiments have seen carried out to varify the performance of the proposed closed loop system. The LQR (Linear Quadratic Regulator) optimisation algorithm was able to find the optimum feed back gains. The simulation and real time experiments show that the reaction wheel pendulum could stabilize the pendulum at upright position.

Keywords
Reaction Wheel Pendulum; State Space; LQR Method

Topic
Electronics Engineering

Link: https://ifory.id/abstract/y9QdTceBVaHY

Corresponding Author
Priska Choirina

Institutions
State Polytechnic of Malang

Abstract
Micro-expression recognition is one of the popular researches in analysing expressions on the face. Micro-expression is a facial movement that occurs in a short time and is difficult to identify manually by human eyes. In general research, facial landmarks are used to form a large size ROI for each facial feature for the feature extraction process. In this study, we utilize certain points in the face to trace the subtle motion of the face for the introduction of micro-expressions in the sequence of onset images to offset. The method of determining the landmark points to be compared is the Discriminative Response Map Fitting method and the Active Shape Model method. This research proposes to use 19 points in the area of the eyebrows, eyes, and mouth. To measure the subtle motion tracking of facial features in each frame tracking is done using the Kanade Lucas Tomasi method. The features obtained are the differences in coordinate values between frames, magnitude, and theta. We evaluated the method proposed in CASME2 and SAMM showed that using naive bayes is 74.6% and neural network is 63.5% classification accuracy in SAMM. In CASME2 using naive bayes is 79.6% and neural network is 61.1% classification accuracy.

Keywords
Micro-Expression;Feature Point; Active Shape Model (ASM); Discriminative Response Map Fitting (DRMF); Kanade-Lucas-Tomasi (KLT)

Topic
Computer Science

Link: https://ifory.id/abstract/azg3peDj97cT

Corresponding Author
Nor Azwany Yaacob

Institutions
1Department of Community Medicine, 2 Department of Family Medicine, School of Medical Sciences, Universiti Sains Malaysia.

Abstract
Background: Readiness to change behaviour is important to ensure effectiveness of therapeutic lifestyle change advice. Readiness to change diet and exercise was observed to be different in same individual. Purpose: This study aimed to develop and validate a questionnaire to assess readiness level to change diet and exercise. Methods: This is a cross sectional community based study. The questionnaire was developed based on Trans-theoretical model and literature reviews. READI questionnaire consists of two parts, readiness to change diet habit and to do exercise. Each set of self-administered questionnaire consist of 12 items; with 4 items for each behaviour change stage as subdomain; pre-contemplation, contemplation and action. Three response choice of “do not agree”, “less agree” and “agree” was used. Validity study was conducted at health community program on 100 villagers. Confirmatory factor analysis was done to assess construct validity for each questionnaire. Reliability was tested using Raykov-s Rho. Result: The factor loading range of both set was acceptable ranging from 0.22 to 0.81 for exercise questionnaire and 0.30 – 0.89 for diet, respectively. Raykov-s Rho for READI-Diet were 0.71, 074 and 0.83 while READI-Exercise were to 0.68, 0.62 and 0.72 for pre-contemplation, contemplation and action subdomain respectively. Conclusion: The READI questionnaire is a potential tool to assess readiness to change diet and exercise for a Malay speaking population.

Keywords
Readiness to change, Questionnaire, diet, exercise

Topic
Communicable and Non Communicable Diseases

Link: https://ifory.id/abstract/uZG3kpybrnm7

Corresponding Author
Yuri Ariyanto

Institutions
State Polytechnic Of Malang

Abstract
With the advancement of computer virtualization technology, the use of cloud computing technology began to be scrutinized by researchers. With the existence of cloud computing technology can make computer virtualization on a server that is running. This can save the cost of providing information technology and operational infrastructure independently for each service that will be served. With this technology one physical machine is made into a shared resource that can be shared and used by several services at once. In this study made 4 servers using SLIMS7, digital libraries are virtual machines implemented in cloud computing servers with proxmox servers. Database server digital library integration uses Service Oriented Architecture (SOA), by connecting to 4 virtual machine servers. Integration is carried out on the book data search system by entering keywords as book data searches that exist in each digital library server, with the results of displaying all book data on each digital library server according to the keywords. The conclusions of this study obtained after testing the system include the acquisition of a new model in the use of Service Oriented Architecture (SOA) to integrate the search for data books that exist in 4 digital library servers.

Keywords
Database Integration, SOA, Digital Library, Proxmox. SLIMS7

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/akLcMxZbVmKq

Corresponding Author
Karina Komala

Institutions
1Master of Nutrition, Indonesia
1Bachelor of Medical Science, University of Melbourne
2Department of Pharmacology and Therapeutic, Faculty of Medicine, Universitas Indonesia
3Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo Hospital
4Obstetrics and Gynecology, Faculty of Medicine, Universitas Indonesia, Gading Pluit Hospital

Abstract
Background: Preeclampsia remains a burden in developing countries such as Indonesia. The precise mechanism of its pathogenesis is still debatable. Oxidative stress, inflammation and malnutrition have been proposed. Coenzyme Q10 (CoQ10) is a vital nutrient in pregnancy as it can increase other antioxidants level such as vitamin B, folic acid, and superoxide dismutase (SOD). Aim: This article aims to review the role of CoQ10 to other antioxidants, which are vitamin B, folic acid, and SOD in pregnancy, in correlation with oxidative stress. Methods: Few prior journals and research are reviewed for role of coenzyme Q10 in pregnancy, particularly in preventing preeclampsia. In order to function at its best, CoQ10 must work together with other micronutrients, for example vitamin B, folic acid, and SOD. This article focuses on CoQ10 and SOD. Discussion: CoQ10H2 or ubiquinol can prevent oxidative stress and vascular endothelial aging through mitochondrial function activation, reduction of intracellular reactive oxygen species (ROS), increase of nitrite oxide production and expression of endothelial nitrite oxide sintase. Meanwhile, SOD can change superoxide free radical into hydrogen peroxide (H2O2) or ordinary molecular oxygen (O2); several ions work on SOD include copper, zinc, iron, manganese, and nickel. Conclusions: Coenzyme Q10 must work in conjuction with other antioxidants, mainly SOD, or vice versa, in order to function at its best. Keywords: Coenzyme Q10; Indonesia; Nutrition; Antioxidants; Pregnancy.

Keywords
Coenzyme Q10; Indonesia; Nutrition; Antioxidants; Pregnancy.

Topic
Nutrition and Functional Food

Link: https://ifory.id/abstract/d3xHtcnvUBfm

Corresponding Author
Amalia Agung Septarina

Institutions
State Polytechnic of Malang

Abstract
Today, Machine Translation has an important role in communication. The need for Machine Translation System is getting higher in this information era. Some Machine Translation already exist, but many researchers interested to improve the quality of translation more natural. Find an optimal translation is not an easy thing to do in language processing. In this paper, we discuss the Machine Translation survey that contains Indonesia language to another language. There are different approaches to machine translation. The various method used in evaluating were also discussed like BLEU and NIST. Moreover, its future works to improve translation quality. From the review results obtained that the translation has better performance depending on the number of the corpus, well-behaved aligned corpus, and the technique used.

Keywords
Machine Translation, Indonesian Review

Topic
Computer Science

Link: https://ifory.id/abstract/qtzvuywTkNKW

Corresponding Author
Carlo Bryan C. Borrico

Institutions
1,2,3,4 Holy Angel University
1System Plus College Foundation

Corresponding author: Dr. Carlo Bryan C. Borrico (borrico.Carlo[at]auf.edu.ph)

Abstract
Backgound: Because of stress and challenges to fulfill institutional goals, nurse academic managers may perceive their work as not job satisfying and intrinsically motivating. A lack of motivation may results in apathy, poor health and well-being, and a sense of powerlessness which lead to poor job performance. Purpose: This study aimed to determine the relationship of nurse academic manager-s emotional intelligence, adversity quotient® and work motivation, and to determine the predictive ability of emotional intelligence and adversity quotient® to work motivation. Methods: A correlational, cross-sectional research design was used to determine the relationship of nurse academic manager-s emotional intelligence, adversity quotient® and work motivation, and to determine the predictive ability of emotional intelligence and adversity quotient® to work motivation. Results: A total of 55 nurse academic managers participated from any the twenty (20) universities/schools with a nursing program, duly selected by purposive sampling. The instrument utilized instruments of four parts, (1) Demographic; (2) Emotional Intelligence Questionnaire; (3) Adversity Response Profile®; and (4) Work Extrinsic and Intrinsic Motivation Scale. Multiple Regression was used to test the predictive ability of trait emotional intelligence and adversity quotient® towork motivation. Conclusions: The findings showed that emotional intelligence had significant negative regression weights while adversity quotient® had a significant positive weight), an indication that only adversity quotient® did significantly predict work motivation. However, out of the four subscales of adversity quotient®, only factors control, r =.361 p <.01 and origin and ownership, r =.320 p <.05 were found to predict work motivation.

Keywords
Emotional Intelligence, Adversity Quotient, Work Motivation, Nurse Academic Manager

Topic
Others

Link: https://ifory.id/abstract/p8nfZgdKa46U

Corresponding Author
Indah Martha Fitriani

Institutions
State Polytechnic of Malang

Abstract
In the robotic field of study, localization is one of the important methods for autonomous mobile robot navigation. Probabilistic approaches have received significant attention in the robotics community. The discrete Bayes and Kalman filters are the fundamental algorithms in probabilistic approach which have to be clearly understood in order to develop more advanced filtering algorithms. This paper discusses discrete Bayes and Kalman filtering algorithms. The mathematical representation of each filter algorithm, in the 1-dimensional case, presented in detail. The algorithms were implemented using python to simulate the probability of the robot position. The algorithms complexity was analyzed with respect to the computational cost and size of memory used. From this study, it has been observed that the Kalman filter is computationally more efficient, and less memory is required.

Keywords
Algorithms, Kalman Filter, Bayes

Topic
Electronics Engineering

Link: https://ifory.id/abstract/7EjvNQA2XT4J

Corresponding Author
Carlo Bryan C. Borrico

Institutions
1 College of Nursing, Dean, System Plus College Foundation, Angeles City, Philippines
1 College of Nursing, Faculty, System Plus College Foundation, Angeles City, Philippines
2 Alumni, Holy Angel University, Angeles City, Philippines

Corresponding author: Dr. Carlo Bryan C. Borrico (borrico.Carlo[at]auf.edu.ph)

Abstract
Background: During menopause, there is a hormonal imbalance that would lead to variety of menopausal symptoms such as hot flashes, weight gain, changes in the body shape, hair loss, hair becomes grayer and coarse, decreased elasticity of the skin, thinning of lining and dryness in the vagina, breast discomfort and urinary incontinence. These menopausal symptoms cause concern and discomfort for these women. It also affects their quality of life. Purpose: The study aimed to explore the women-s sense of body during their midlife years. Methods: A phenomenological-heuristic research design was used in the study. Eight informants willingly participated in the study under an informal, semi-structured interview with the main question, ““What are your experiences during midlife?” and “How did those experiences happened?” The transcribed verbatims were analyzed through the use of Moustakas method. Results: The study revealed 7 main themes: (1) “I-ve changed…” (2) “What is bothering me?” (3) Looking back into the windows of the past (4) my weapons for my battle (5) Metamorphosis: A new conquest (6) Dreams: The paramount of my life. The study reflected the entirety of the participant-s experiences. Conclusions: This study has shown that living the experience of wellness at menopause can accommodate the experience of change or symptoms. In this way the experience of menopausal change is not disruptive to the womans continuity of experience, she continues to feel well and to do all the things she wants to do. Furtherrecommendations are needed to enhance the understanding of the lived experience of women regarding their sense of body at midlife.

Keywords
Menopause, Women at midlife, live experience

Topic
Nursing

Link: https://ifory.id/abstract/8Qv7ab6fwmJe

Corresponding Author
ilham pakaya

Institutions
State Polytechnic Of Malang

Abstract
The instability of energy resources and correseponding cost of the system are the main two problems for designing the hybrid solar-wind power generation systems. The configuration of the system must have a high reliability on the power supply avaibility but with a minimum cost. The purpose of this paper is to find the most optimum or balanced configuration between technical reliability and total annual cost for the PV module number, the wind turbine number and the battery number. Apropriate strategy of load management is needed by adjusting the potensial energy resource to the load power demand. Loss of Power Supply Probability (LPSP) is a method to determine the ratio of power generation unavailability by the system configuration which used as technical analysis. Annualized Cost of System (ACS) is a method to determine the total annual cost the project lifetime which used as economical analysis. The result from the simulation showed that Particle Swarm Optimization (PSO) algorithm can be an alternative method to find the best configuration with a low number of LPSP and ACS. Since, PSO has a better efficacy and faster time to find global optimum than other algorithm.

Keywords
Hybrid Generation; Optimization; LPSP; ACS; Particle Swarm Optimization (PSO)

Topic
Electrical Engineering

Link: https://ifory.id/abstract/YjqphUdTk2Pc

Corresponding Author
Carlo Bryan C. Borrico

Institutions
1System Plus College Foundation
1,2 Holy Angel University

Corresponding author: Dr. Carlo Bryan C. Borrico (borrico.Carlo[at]auf.edu.ph)

Abstract
The Philippine government tried its best to design a law for senior citizens while Filipino families took care of their senior citizen member. They designed a law that recognized the contributions of senior citizens in nation building. However, in the report of Dr. De Leon (2014), even though senior citizens have identification card as their single most important document to access their benefits and privileges, what was identified as a gap is the supply side i.e., limited availability and accessibility of health services and medicines, issues related to access of mandated senior citizen benefits. This aimed to describe the level of awareness on the rights, benefits, privileges, and health services of elderly residing in Barangay Dau. A descriptive design was used. Self-made questionnaire to capture awareness and availment of elderly rights, benefits and privileges was used. Frequency, percentage, mean, and standard deviation were used. The result revealed that all of the participants were aware of grant of twenty percent (20%) discount from all establishments and provision of express lanes for senior citizens in all commercial and government establishments and reported they availed it. However, it is noticeable that all participants are not aware of the free medical and dental services in government establishments and the monthly stipend five hundred pesos (Php500.00) for indigent senior citizens. On the other hand, out of 92.5 percent participants who were aware of the continuance of the same benefits and privileges by GSIS, SSS, PAGIBIG, only 53.3 percent availed it. Lastly, out of 98.8% participants who were aware on mandatory PhilHealth coverage, only 93.5% availed it. It is important for health administrator and health worker to strengthened their information dissemination to increase the elderly awareness and to avail their rights, benefits and privileges.

Keywords
Elderly, Aging, RA 9994

Topic
Health Policy, Services and Economic

Link: https://ifory.id/abstract/NdF7PxeACYaE

Corresponding Author
Sri Mulyaningsih

Institutions
Institut Pendidikan Indonesia Garut

Abstract
ABSTRACT. The pruning waste of Java apple (Syzygium samarangense) tree branch can be used for its propagation by stem cuttings. The rooting process can be accelerated with the help of growth regulators, one of which is betung bamboo shoot extract. Using a randomized block design, this experiment aims at examining the effect of betung bamboo shoot extract with concentrations of 0%, 10%, 20%, 30%, 40% and 50% on the growth of Java apple stem cuttings. The samples were 48 stem cuttings with a diameter of 1 cm and a length of 15 cm. The results showed that betung bamboo extracts could accelerate the propagation process. The optimum concentration was 50%.

Keywords
Keyword: Java apple stem cutting, betung bamboo shoot extract, propagation acceleration.

Topic
Biology

Link: https://ifory.id/abstract/YtwukxJK3BbF

Corresponding Author
Haris Singgih Darmawan

Institutions
a) Department of Electrical and Information Technology Engineering, Faculty of Engineering, Gadjah Mada University
Jalan Grafika 2 Yogyakarta 55281 INDONESIA

Abstract
The problem of small signal stability is one of the main problems in the current power system because the purpose of operating the system is close to the limit. Small signal stability is important because small disturbances in the form of non-dampened electromechanical oscillations have limited the power flow limit in a steady state, so the oscillation will affect the operating system in a security and quality review. The entry of renewable energy in the Sulawesi interconnection system certainly has an impact on system stability and the emergence of electromechanical oscillations. An estimated 75 MW of power will come from the PLTB that will be built in Sidrap and 62.5 MW in Jeneponto. This study aims to analyze small signal stability due to the development of EBT generators on the Sulawesi interconnection system through eigenvalue characteristics and participation factors. The PLTB that will be integrated in the Sulawesi system certainly affects power flow which has an impact on small signal stability. From the above explanation, it is considered necessary to conduct research on the analysis of the stability of small signals before and after the integrated power plant in the Sulawesi electricity system.

Keywords
Small signal stability, Renewable Energy, Eigenvalue.

Topic
Electrical Engineering

Link: https://ifory.id/abstract/PeKUXF6JNy7j

Corresponding Author
Hudiana Hernawan

Institutions
Institut Pendidikan Indonesia Jl. Pahlawan no 32 Sukagalih Garut 44151, Indonesia

Abstract
The growth of animals can be determined by various hormones, one of which is somatotropin. Somatotropin has remarkable effects on the tissue growth. This study aims at examining the effects of somatotropin on male rate growth performance. The samples were one hundred and sixty two 2-week old Sprague-Dawley male rats. Data analysis was performed using two-factor nested designs. The first factor was dosage consisting of 3 levels (0, 3, and 9 mg/kg bw/day). The second factor was the injection period consisting of 3 injection periods (day 1 to day 14, day 1 to day 28, and day 15 to day 28). The results showed that during day 1 to day 28 of the injection period, somatotropin improved bone length and bone composition and that no further growth after day 28. This may imply that somatotropin could improve the growth of male rats.

Keywords
somatotropin, bone growth, dosage, injection period

Topic
Biology

Link: https://ifory.id/abstract/X7WMxdwvDrAK

Corresponding Author
Dedi sadudin Taptajani

Institutions
Department of Industrial Engineering
Sekolah Tinggi Teknologi Garut

Abstract
Distribution is an important aspect of the delivery process. So it is an activity that is useful to launch goods distribution activities from upstream to downstream. According to Philip Kotler (1997) Distribution is a group of organizations that create a process of distribution activities of a good or service, the distribution of trash from the Temporary Disposal Site (TPS) to the end in the optimal Final Disposal (TPA) is a step to Accelerate the arrival of trash to the final dump. presents an extension of the ant colony technique to solve the optimization case of the shortest route by taking into account the distance, capacity and grouping of the optimal depot using the ant algorithm model as the first step of optimization, The ant colony algorithm is adopted from the behavior of ant colonies known as the ant system (Dorigo, 1996 ). Naturally, ant colonies are able to find the shortest route on the way from the nest to the food sources Ant colonies can find the shortest route between the nest and the source, of food based on footprints on the trajectory that has been passed. This paper presents an extension of existing ant colony techniques to solve some of the trash removal problems from some Temporary Disposal Sites (TPS) to end up in the Final Disposal (TPA). so that in the process of taking garbage to each TPS, each vehicle brings waste with optimal capacity, without any empty vehicle, when the vehicle reaches the Final Disposal (TPA) with the shortest route consideration. Based on the results of simulation and evaluation studies using a model approach, it has been shown that the ant colony optimization technique proposed in this paper leads to more optimal results than the method.

Keywords
Distribution, optimization, ant colony algorithm, simulation, evaluation

Topic
Industry Engineering

Link: https://ifory.id/abstract/txTnAY6kbM27

Corresponding Author
Kevin Gausultan Hadith Mangunkusumo

Institutions
PLN Puslitbang (Research Institute)

Abstract
Advanced Metering Infrastructure (AMI) is the foundation of the Smart Grid system. One of the most important parts of AMI is smart meter communication. Power Line Communication (PLC) technology utilizes the existing power line network for communication media between smart meters and Data Collector Units (DCU). One of the biggest challenges of communication using PLC is the noise level due to residential loads. In this study, laboratory test set up to measure noise caused by PV rooftop and residential loads are described. The measured signal is analyzed to find out the PLC frequency band with a low noise level. Experiments in the field are conducted to determine the performance of the PLC. Laboratory test measurement result shows the FCC band (150-490 kHz) is outside the range of PV rooftop and residential load noise. On the other hand, the Cenelec A (35-90kHz) frequency range is in the range of noise signal. Therefore, NB-PLC G3 using FCC frequency band is proposed to achieve robust data communication and lower noise level. G3 PLC FCC band are tested in the real field residential area, the experimental results show 97.62% successful rate within one week data collection.

Keywords
NB-PLC, FCC band, Cenelec A band, Noise, Residential load, PV rooftop

Topic
Electrical Engineering

Link: https://ifory.id/abstract/CJt84PexDRbB

Corresponding Author
Farihin Lazim

Institutions
State Polytechnic Of Malang

Abstract
Image reconstruction of traffic signs serves to improve the image quality of traffic signs that are blocked by leaves or tree branches so that it can facilitate the process of detecting and recognition traffic signs. Inpainting is one of the image restoration methods to reconstruct images that have been damaged or the removal of unwanted objects where the area to be restored is based on information around the area. Criminisi introduces an inpainting method with an exemplar-based approach that combines the structure-oriented and texture-oriented scheme. While Hung popularized the Criminisi method and combined it with contour construction (bezier curve). The researcher tried to compare the two methods by using a number of images of traffic signs, one of them by using images with a size of 123 x 116 issuing the results of Mean Squared Error (MSE), the criminisi method gets results from MSE 69,70 while the hung method gets results from MSE 68,04 . Based on the reconstruction process of both shows the average hung method is smaller than the MSE results which means the closeness of the reconstruction results with the original image is closer to the hung method than the criminisi method.

Keywords
traffic signs, image reconstruction,image recognitions, curve bezier.

Topic
Computer Science

Link: https://ifory.id/abstract/cuzhKn9YEX3J

Corresponding Author
Ferli Septi Irwansyah

Institutions
UIN Sunan Gunung Djati
*ferli[at]uinsgd.ac.id

Abstract
Augmented reality is one of the technologies that is increasingly being developed as a learning media in the field of chemistry. This study aims to describe the appearance of AR technology-based learning media on the concept of molecular hybridization. Design based research has produced products in the form of AR technology-based learning media on the concept of molecular hybridization. Research shows completing media creation, design development, and application creation and analyzing the results of limited trials. This study shows the making of AR technology-based learning media has the potential to be applied to chemical learning in accordance with the concept of molecular hybridization.

Keywords
augmented reality, chemistry learning media, molecular hybridization

Topic
Chemistry

Link: https://ifory.id/abstract/GdCabguL34rc

Corresponding Author
Yuniar Purwanti

Institutions
a) Institut Pendidikan Indonesia Garut, Jalan Pahlawan No 32 Garut
*myyuniar[at]gmail.com
*yuniar[at]institutpendidikan.ac.id

Abstract
Student engagement is an important element in learning. Mobile learning is a learning media that can facilitate student engagement. The purpose of this study is to measure student engagement in problem solving behavior abilities; explanation; and analysis using mobile learning. Qualitative analysis is divided into three stages, namely preliminary studies, literature studies and observations involving thirty students. The engagement of students shows a sufficient tendency to solve problems, explain learning material and analyze.

Keywords
Mobile Learning, Students Engagement

Topic
Computer Science

Link: https://ifory.id/abstract/9kH6ht7BXxdF

Corresponding Author
Handrea Bernando Tambunan

Institutions
PLN Research Institute
Transmission and Distribution Department
Jakarta, Indonesia

Abstract
Indonesia has a great solar energy potential because its location in tropical area. One of significant characteristic of solar energy is intermittency. Integration of interimittent renewable energy source (IRES) especially solar energy into electrical power grid can cause significant impact in power system stability. This study aim to model the IRES characteristic, profile, and time duration classification based on collected data in Cipayung microgrid system. The result shows the characteristic of IRES consist in two type, suddenly increase and suddenly decrease of solar source. These two characteristic profile modeled by polynomial and logarithmic regression analysis using mathematically equation. There has not been found a condition where the availability of solar energy value is immediately decrease to high level or increase to zero. The very fast IRES classification of time duration is the most often occurs about 0.5 to 1.0 minutes. System operator can use these model to prepare the power plant and prevent the system collapse even blackout.

Keywords
Intermittent; renewable energy source; regression; solar irradiance; PLN; Microgrid; Cipayung

Topic
Electrical Engineering

Link: https://ifory.id/abstract/H69upNAtMDkP

Corresponding Author
Yhana Mulyaningsih

Institutions
Faculty of Engineering, Sampoerna University
Jl. Pasar Raya Minggu No 16, Jakarta Selatan, Indonesia

Abstract
Lignin is difficult to be decomposed due to its complicated carbon bonding. Previous studies have discovered that ligninolytic enzymes effectively degrade lignin waste. Numerous microorganism such as white rot fungi have been taken into account to accelerate the decomposition process of lignin. The aim of this study is to detect the capability of the fungi which was isolated from decayed root and stem of oil palm tree. Qualitative test using guaiacol (0.02%) was performed to observe the ligninolytic activity of the fungal isolates. The results of the test indicated that two out of ten fungal isolates were able to produce ligninolytic enzyme. Successful of this study could be used as baseline information of potential fungi which are able to degrade lignin waste in environment.

Keywords
lignin, lignin waste, ligninolytic activity, white rot fungi

Topic
Biology

Link: https://ifory.id/abstract/LDCVhF7RNKtz

Corresponding Author
suko wiyanto

Institutions
State Polytechnic of Malang

Abstract
The Greenhouse is currently a necessity for urban landless people. To save energy, it is necessary to install photovoltaic on the roof of a mini greenhouse to supply electricity. The use of PV is very dependent on climate, temperature and irradiation so that to obtain optimal power, MPPT is needed. In this paper present maximum power point tracking for stand-alone PV system based on PSO using input voltage and current of the boost converter. Performance of PSO is validated by Simulink with irradiance and temperature variation. Use of PSO can achieve maximum power for various irradiance. MPPT based PSO was compared by PV system without MPPT. Based on simulation result, PSO provide the power improvement 29,98 W. Simulation results show that a system designed to optimize the power produced by PV.

Keywords
Greenhouse, photovoltaic, MPPT, PSO, Boost Converter

Topic
Electrical Engineering

Link: https://ifory.id/abstract/vPWYGdpZEXTR

Corresponding Author
Ateng Kurnia

Institutions
Institut Pendidikan Indonesia Garut; Universitas Negeri Semarang;

Abstract
The purpose of this paper is investigating the effect of dubbing vowel reduction on the accuracy of transcripting of speech recognation software. Originally dubbing is voiceover translations in film but in this case, it means technique of training vowel reduction to help freshmen attain the level of intelligible pronunciation by imitating though group pronounced by actors and voiceovers mirroring native like pronunciation synchronizing as closely as possible with native speakers lips. The participants are twenty freshmen as control class and the other twenty as experiment. Praat analysis is used to see the accuracy of students utterance pronouncing the reduced vowel extracted from segmentation of though chunk and to analyze its effect on the transcript made by speech recognation software.

Keywords
dubbing vowel reduction, intelligible pronunciation, Praat analysis and transcript of speech recognation

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/q3pQPYvZEG2W