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Corresponding Author
Hari Karyadi Oetomo
Institutions
Universitas Trisakti
Abstract
A sweet gas exploration well, penetrating 3286 feet thickness of Granite Basement with 70 feet thickness of extensive fracture was tested. Initial step was to study all geologycal and petrophysical aspects of reservoir and well . These data were used to obtain the sense of reservoir shape model and its fracture flow behavior. Interpreting the log gives the presents of partial fracture and open fracture, which are shown in the early time region as a fracture dominated flow and very small wellbore storage effect. The bilinear flow before middle time region and followed by two porosity fracture model at middle time region are shown afterward. Constant pressure circle boundary is shown in the late time period. In summarized, the well flow model is in infinite acting conductivity with two porosity pseudo steady state reservoir model and constant pressure circle boundary. The permeability is 1.45 mD, with -0.52 skin and 1962 Psia reservoir pressure; meanwhile the fracture coefficient is 50 mD-ft, storativity is 0.51, and interporosity flow coefficient is 4.38x10-6 mD-ft. All well and reservoir data pertaining well test is very important for getting a reliable well test interpretation result; to get better understanding reservoir flow behavior.
Keywords
Pressure Build Up Test, Pressure Derivative, Granite Basement, Sweet Gas Well,
Topic
Industry Engineering
Corresponding Author
RINI SETIATI
Institutions
Petroleum Engineering Departement , FTKE, Universitas Trisakti , Jakarta
Abstract
Pattern X is one of the patterns in Field Z which is 60 km west of Prabumulih, South Sumatra, where the full scale waterflood is implemented. In general, the pattern used is an irregular inverted 5-spot where there are six production wells namely Z-091, Z-098, Z-110, Z-157, Z-195, and Z-233 and one injection well namely Z-227. Waterflood is a secondary recovery method by injecting water into the reservoir. Waterflood surveillance analysis was carried out to determine the conditions around the production and injection wells during waterflood. Surveillance analysis is used as a measure of the success in waterflood activities. One of methods that used is the Hall Plot method. It is obtained a slope which moves upward where displacement is moved normally or stable. However, over time there is an increase in the slope of the tilt where skin changes occur. In fact, the slope that occurs due to the installation of Multilayer Packer is used to adjust the desired injection rate. In the end, the injection results have no problems and runs stable. Based on the results of the Waterflood Surveillance Analysis Using the Hall Plot method, it can be concluded that the injection in the Z-227 injection well runs normally or stably
Keywords
Hall Plot, irregular inverted 5-spot, Surveillance, Waterflood
Topic
Material Engineering
Corresponding Author
RINI SETIATI
Institutions
Petroleum Engineering Departement , FTKE, Universitas Trisakti , Jakarta
Abstract
The wells analyzed in this Final Project are the A-1 well, T field. Reservoir in this field is gas reservoir with sandstone rock formation, so one of the problems in Field T is the sand problem. Due to the sand problem on well A-1, well test analysis must be done first, to see if there is any damage to the formation if the flow rate is increased.Identification of formation damage in a well can be done by doing Pressure Buildup test. The method used is pressure build up test by Horner method which is done manually and Pressure Derivative with Saphire software v.3.20. The determination of deliverability test was conducted by conventional methods C and n. Given the results of the analysis, the permeability value remains, the value of the skin decreased, and Initial Pressure also decreased. From the results of the tests, there were no significant changes, indicating no formationdamage. The results of the deliverability tests in 2017 decreased, due to initial pressure decrease. Based on the results of well testing, there is no formation damage, so the flow rate can still be increased according to the IPR curve.
Keywords
Deliverability, Horner, IPR curve, Pressure Build up, Well testing
Topic
Material Engineering
Corresponding Author
Muhammad Taufiq Fathaddin
Institutions
a)Petroleum Engineering Department, Universitas Trisakti,
Jakarta, Indonesia
*)mmarissa89[at]gmail.com
b)PPPTMGB Lemigas, Jakarta, Indonesia
Abstract
In this study, CO2 Flooding simulation models were used to predict oil recovery. The models were previously validated by laboratory experiments of Continuous Injection and Water Alternating Gas (CO2) injection for miscible condition. Sensitivity test was performed to attain the best injection rate parameters.The simulation experiments indicated that the optimal performance for both methods obtained at injection rate of 0,09 cuft/day. The scenarios of continuous CO2 injection showed that the maximum recovery factor (RF) is 21%. While the scenarios of Water Alternating Gas, the maximum RF is 38%. Based on the whole scenarios used, WAG displacement resulted in more effective RF value than Continuous Flooding, within the range of injection rate studied.
Keywords
CO2 Injection, Simulation, Recovery Factor
Topic
Chemical Engineering
Corresponding Author
RINI SETIATI
Institutions
Geology Engineering Departement , FTKE, Universitas Trisakti , Jakarta
Abstract
Indonesia has a high geothermal energy resource, preserved in many geothermal fields. But not all fields are potential for indirect utilizations such as for electric power generation. A direct utilization of low potential of geothermal energy resource has been performed at Batukuwung geothermal field, Serang, West Java. A simple design of vegetable grain dryer has been created (constructed) using galvanis metal pipes. A reduction of temperature from 63 degrees Celcius at the heat source to 41 degrees Celcius at the dryer tool through galvanis metal pipes is quite enough for vegetable grain drying purposes. It is quite a prospect simple technology to be applied and developed in Indonesia as a geothermal energy country having various vegetable grain products from various plants such as coffee, corn, peanut and many other tropical plantations.
Keywords
Low potential geothermal resource, heat conversion, grain dryer
Topic
Material Engineering
Corresponding Author
Anantia Prakasa
Institutions
1 Fakultas Teknik Elektro & Telekomunikasi, Institut Teknologi Telkom Purwokerto (ITTP), Indonesia
2 Fakultas Kedokteran, Universitas Jenderal Soedirman (UNSOED), Indonesia.
Abstract
Background: Industry 4.0 aims to increase the productivity in all aspects and to create simultaneously effectivity and efficiency by using Artificial Intelligence (AI), Machine Learning (ML) and Hypoconnectivity; to achieve these objectives in medical education and health service it needs collective big data, algorithms and statistic tools. Purpose: The purpose of these study is to look for the possibility the utilization of AI, ML in medical education and health service in Indonesia. Methods: Literature Study Results: Data required by ML is a thousand of predictor variable such: physiology data, anatomy, biochemistry, patient data sourcing from anamnesis, physical examination and supporting data examination. All kind of those data process using algorithm and statistical standard model. With the result of that we have record for data and information to make diagnosis and prognosis. In biomedicine, ML are able to determine the optimum diet based on function and protein structure from genetic sequences. AI, ML and matric curriculum capable to made excellent format as “click-on”. Curriculum matrix can be explored by the expected learning outcomes, Curriculum contents of expertise covered, Students Assessment, Learning Opportunities, Learning Location, Learning Resources, Time Table, Staff, Curriculum management and Students. The matrix provides one way of tracing the link between curriculum level as planned, as delivered and as experienced. A curriculum has at least four important elements: contents, teaching, learning strategy, assessment process and evaluation process. Implementation ML not only limited to curriculum but also virtual patient, virtual teacher, virtual environment. Conclusion: Human physician and AI doctors will work together to create the best hospital services. “Click-on” easily identified: what, when, where, how students and staff, also curriculum elements.
Keywords
Industry 4.0 revolution, Artificial Intelligence, Machine Learning, Medical Education, Health Services
Topic
Health Promotion and Education
Corresponding Author
Dalia Sukmawati
Institutions
1) Biology Department, 9th Floor Hasyim Ashari Building, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jakarta, Indonesia
2) Universitas Negeri Culture Collection, 9th Floor Hasyim Ashari Building, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jakarta, Indonesia
3) Microbiology Division, Research Center for Biology, Indonesian Institute of Sciences (LIPI), Indonesia.
4) Institute of Bioproduct Development (IBD), Universiti Teknologi Malaysia (UTM), 81130 UTM, Skudai, Malaysia
5) Department of Bioprocess and Polymer Engineering, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
Abstract
Mold is one of causal agents of postharvest diseases in apples. These include Aspergillus sp., Penicilium expansum, Botrytis cinerea, and Venturia sp. Fungicide application in controlling postharvest diseases causing several problems such as fungal resistance, environmental pollution and health. Therefore, it is important to seek alternative solution which is safe to human and environment, such as biocontrol. The aims of this study were to examine biocontrol activity of yeast isolated from bintaro leaves in inhibiting the growth of fungal postharvest diseases in apples and to determine the identity of these yeasts by using molecular phylogenetic analysis of nucleotide sequencing from the ITS rDNA region. Samples of apples were collected from Perumnas Traditional Market, Klender, East Jakarta. Isolation was done by using direct isolation techniques. A total of 18 fungal isolates have been isolated from symptomatic apples. Pathogenicity assay showed that A. brasiliensis sensu lato strain A1 (KP value 100%; KeP 50%) and A. flavus sensu lato strain A17 (KP value 100%; KeP 31.25%) exhibit highest activity in deleterious apple fruits. Rhodotorula mucilaginosa strain T1 and two isolates of Aureobasidium c.f. pullulans (strain T3 and T4) showed highest antagonism activity against the fungal pathogens. Biocontrol assay showed that yeast isolates were capable to reduce the growth of A. brasiliensis and isolates T1 and T3 were capable to reduce the growth of A. flavus.
Keywords
Apple, Aureobasidium pullulans, biocontrol, fungi, Rhodotorula mucilaginosa
Topic
Biology
Corresponding Author
RINI SETIATI
Institutions
Petroleum Engineering Departement , FTKE, Universitas Trisakti , Jakarta
Abstract
TJS reservoir is a gas reservoir located in the area of West Java. TJS reservoir has been producing since September 1999 until now, with a total production of 37115,774 MMscf. Based on the research, the TJS reservoir is dry gas reservoir reservoir with thrust in the form of a depletion drive. The purpose of calculating and evaluating of the ga initial in place of the TJS reservoir is to see the compatibility between empirical calculations and simulator calculations. This research method uses correlation data in the form of petrophysical data, PVT data, production history data and historical data on reservoir pressure. Determination of reservoir type is based on PVT data in the field using IPM PVTP software to analyze the type of reservoir. This software requires data on composition of natural gas composition, reservoir pressure and temperature. Determination of the Gas Initial In lace (GIIP) in the TJS reservoir using the material balance method based on analysis of pressure and production data, plots between P / Z to Gp. The results of the calculation of the initial TJS reservoir gas content using the material balance method obtained the initial gas content value of 50063.59 MMscf and based on the MBAL software analysis, the initial gas content value was 50661.3 MMscf. In this study, the determination of the amount of initial gas content (GIIP) in the TJS reservoir with the material balance method and analysis of the MBAL software has obtained the appropriate results.
Keywords
original gas in place, material balance, IPM MBAL, estimated ultimate recovery, remaining reserve
Topic
Material Engineering
Corresponding Author
RINI SETIATI
Institutions
Petroleum Engineering Departement, Faculty Of Earth Technology And Energy, Trisakti University, Jakarta
Abstract
Oil and gas industry is an industry with a high cost and high risk, artificial intelligence will help the work of humans to minimize the risk of accidents, reduce processing time and improve corporate profits. So the work becomes more efficient.The aims of the study give information that the artificial intelligence help the work to evaluate the initial gas in place on reservoir. Reservoir RGN has long produced, then it needs to be evaluated to find out how many initial gas in place is left in the reservoir. Additional research is needed to know the type of reservoir and drive mechanism.The method used is the research on reservoir RGN, the data used are based on real data in field.This research uses artificial intelligence MBAL and PVTP software, with the study of literature.Based on the research results obtained, this type of reservoir RGN is dry gas reservoir, with the drive mechanism is depletion drive. Initial gas reservoir RGN is 50,661.3 MMscf, with estimate ultimate recovery is 47,966.13 MMscf, recovery factor was 94.68% and the remaining reserve reservoir RGN in July 2018 is 10,850.386 MMscf or 10,85 Bscf.Artificial intelligence helps work, provides diverse outputs and the results obtained are more accurate and detailed
Keywords
original gas in place, artificial intelligence, PVTP, MBAL
Topic
Material Engineering
Corresponding Author
Mutia Delina
Institutions
(a) Physics Department, Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta
Jl. Rawamangun Muka No 1, Jakarta Timur 13220, Indonesia
*mutia_delina[at]unj.ac.id
(b) Educational Physics Department, Faculty of Mathematics and Natural Science. Universitas Negeri Jakarta
Jl. Rawamangun Muka No 1, Jakarta Timur 13220, Indonesia
(c) Ministry of Foreign Affair Republic Indonesia.
Jl. Taman Pejambon No 6. Jakarta Pusat, Indonesia
Abstract
The quantum key distribution provides a secure information exchange. The system employed a photon as the messenger. In this study one-time-pad (OTP) quantum key distribution provide a key which is use one time only. For example, in a war. Therefore, it is not possible to share the secrete key in this condition. This paper discusses the simulation of a one-time pad quantum key distribution.
Keywords
simulation, quantum key, one time pad
Topic
Physics
Corresponding Author
Agus Setyo Budi
Institutions
aDepartment of Physics, Universitas Negeri Jakarta
Jl. Pemuda 10, Rawamangaun, Jakarta 13220, Indonesia
bDepartment of Physics Education, Universitas Negeri Jakarta
Jl. Pemuda 10, Rawamangaun, Jakarta 13220, Indonesia
Abstract
The aim of this research to investigate the influence of temperature and additive effect of coconut shell charcoal on the density and porosity of ceramic membranes based on zeolite and soil. With the addition of additives in the form of charcoal can reduce the density of ceramic membranes. It can also increase porosity of ceramics and clay based zeolite membranes. The results of the study show that based on the results of the Scanning Electron Microscopy (SEM), it can be seen that the largest pore size is owned by samples containing 80% zeolite and 10% additional. The number of pores produced depends on how much additive content is contained in the sample. The conclusion is that there is a tendency for the temperature to rise and the more additives contained in the sample, the more pores produced.
Keywords
Temperature; additive coconut shell charcoal; density; porosity.
Topic
Material Science
Corresponding Author
Puri Wijayanti
Institutions
Program Studi Teknik Perminyakan, FTKE, Universitas Trisakti, Jakarta Barat 11440, Indonesia
Abstract
In order to improve and increase oil recovery by EOR CO2 injection, CO2 MMP is an important key parameter whereas the CO2 injection must be conducted at or above MMP. The aim of this study is to determined CO2 MMP by using one-dimensional CMG simulation model and proposed the CO2MMP correlations. on L reservoir. To be able to make an accurate simulation model and to choose the best correlation , it is necessary to validation by comparing the obtained CO2 MMP with experiments in the laboratory on 8 type oil from various field. The result showed that Zhang-s correlation is the best correlation which have -6.9% average percentage of errors while using the CMG simulation model shows the average percentage errors approximately -6.5 %. Using Zhang-s correlation we calculated that CO2 MMP on L reservoir about 3388 psia and from CMG simulation we have obtained CO2 MMP equal as 3428 psia.
Keywords
Correlation, Simulation, Minimum Miscible Pressure (MMP), Enhanced Oil Recovery (EOR)
Topic
Material Engineering
Corresponding Author
Agus Setyo Budi
Institutions
aDepartment of Physics Education, Universitas Negeri Jakarta
Jl. Pemuda 10, Rawamangaun, Jakarta 13220, Indonesia
bDepartment of Physics Education, Universitas Sultan Ageng Tirtayasa
Jl. CIwaru Raya No 25, Serang, Banten, Indonesia
Abstract
The purpose of this research is to develop a new web-based Mobile Digital Education design to measure character education using as an effort to face the era of disruption. E- Character Mental Revolution (E-CMR) Based on Mobile Digital Education (MDE) for Student Competency Improvement in Facing the Disruption. The research method used was a mixed method with the research subject being 80 students in Islamic boarding schools and 80 students in one of the state colleges in Banten, Indonesia of aged 19-22. The scores were analyzed using both qualitative and quantitative methods. The results obtained that MDE-based E-CMR can improve the cognitive competence of students in Islamic boarding schools with an N-gain score of 7.4 high categories and improve cognitive competence of students of colleges with an N-gain score of 7.6 high categories. It can be concluded that the MDE-based E-KRM is significant in increasing the competence of students and students in facing of the disruption.
Keywords
Mobile Digital Education (MDE); Competence of Students; E-Characters Mental Revolution (E-CMR); Disruption.
Topic
Computer Science
Corresponding Author
Irfan Marwanza
Institutions
Trisakti University, Jakarta.
Abstract
In the calculation of coal resource estimation is generally done by a conventional and nonconventional method. This research uses a nonconventional method of Moving Windows Statistical (MWS) and Kriging, with 3 dimensions of calculation box area 100m x 100m, 200m x 200m, and 300m x 300m. which is processed using MWS and SGems software. The value to be gained is to compare the average yield of coal thickness with basic statistics, Inverse Distance Squared (IDS) and Kriging, and estimation of coal resources. By using MWS obtained an average value of coal thickness for area 100x100 equal to 6,40m, area 200x200 equal to 6,24m, and 300x300 equal to 6,03m. For the value of its ids in the area of 100x100 of 6.38m, 200x200 area of 6.16, and 300x300 of 5.94. As for the value of Kriging using Sgems with 100x100 area of 5.77m, 200x200 of 5.68m, and 300x300 area of 5.8m. For estimation of coal resource at area 100x100 equal to 943,480ton, area 200x200 equal to 526,460ton, and area 300x300 equal to 327,450 ton. In comparison, the average value of the average thickness by basic statistics, IDS¸, and Kriging on each area did not change significantly. But the value of the kriging method is the most accurate value because of the influence of spatial variation of data where one point with the other point influences each other.
Keywords
Geostatistics, moving windows statistical, kriging, coal, resources
Topic
Sample Topic
Corresponding Author
Asma Irma Setianingsih
Institutions
Departement of Geography Education, Faculty of Social Sciences Universitas Negeri Jakarta
Abstract
This study aims to analyze the participation of the community in lanslide risk reduction and to develop community-based landslide mitigation model in Karangkobar Village, Banjarnegara, Central Java. The method in this study is quantitative with a survey approach. The population in this study were 721 heads of households, and 88 people were taken by simple random sampling. The analysis technique is descriptive using frequency tables. The disaster mitigation model uses participation indicators and landslide mitigation standards from the National Disaster Management Agency. The results showed that as many as 87% of the people participated in mitigation planning, 85% of the community participated in the implementation and 93% of the community participated in the evaluation. Based on the measurement of the three indicators above, it can be concluded that the level of community participation in reducing the risk of landslides is quite high. The mitigation model carried out by the community were to form a disaster management working group which later developed into a community that was aware of the disaster and finally designated as a disaster response village. These group activities include installing landslides or warning signs, planting trees on slopes, caring for and monitoring landslides instruments and working with the Disaster Management Agency.
Keywords
Disaster, Community Participation, Landslides
Topic
Environmental Engineering
Corresponding Author
RINI SETIATI
Institutions
Petroleum Engineering Departement , FTKE, Universitas Trisakti , Jakarta
Abstract
This field X well production has indeed occurred in the sand and this well has been carried out with waterflooding with injection water that is currently available. In this study of sand problems it is intended to find out the cause of the problem of sandiness in terms of laboratory analysis of formation rock samples and injection fluid. Laboratory analysis consists of fluid characterization, rock characterization that is specifically assigned to rock minerals (SEM and XRD), and fluid injection compatibility tests with rocks, then a sand retention test is performed. After the addition of clay stabilizer in injection water, Zone A, Zone B and Zone C have increased apparent permeability to reach an interval of 500% -1000% mD. The use of Zetpass cannot be used in zone A because there is a lot of clay and the grain is very fine, but it can be used in zones B and C. Fluid interactions with rock minerals and chemical interactions will reduce the cementation of rocks so that they can trigger the occurrence of sand. Clay stabilizer is important to note in wells that have done waterflooding. ZetPas solution is able to become sand control but has limitations.
Keywords
sand problem, clay stabilizer, zetpas, sand control
Topic
Mechanical Engineering
Corresponding Author
Mukhlisah Hanubun
Institutions
a) Professor at State University of Jakarta, Indonesia
b) Magister Student, State University of Jakarta, Indonesia,
c) State University of Jakarta, Indonesia
d) State University of Jakarta, Indonesia
e) State University of Jakarta, Indonesia
Abstract
Penelitian dilakukan untuk menjelaskan hubungan antara Kepemimpinan Instruksional dan Locus Of Control terhadap Pro Ecology Behavior Siswa. Metode yang digunakan adalah metode survey. Adapun pengambilan sampel dilakukan dengan cara multistage random sampling hingga terpilih 100 siswa MAN 6 Jakarta Timur orang sebagai sampel. Uji regresi dan analisis korelasional digunakan untuk memverivikasi hubungan antara variabel. Data penelitian diperoleh dari hasil pengukuran yang menunjukkan bahwa terdapat hubungan positif antara Kepemimpinan Instruksional dan Locus Of Control terhadap Pro Ecology Behavior Siswa, baik sendiri maupun bersama, baik dikontrol maupun tidak. Kepemimpinan guru atau yang diistilahkan kepemimpinan instruksional adalah salah satu faktor situasional dalam teori perilaku, sehingga penelitian ini mengkorelasikan faktor internal yaitu Locus Of Control dengan faktor situasional yaitu Kepemimpinan Instruksional dan pengaruhnya terhadap Pro Ecology Behavior Siswa. Semakin tinggi Kepemimpinan Instruksional dan Locus Of Control, maka semakin tinggi pula Pro Ecology Behavior Siswa.
Keywords
locus of control, kepemimpinan instruksional, ecology behavior
Topic
Environmental Engineering
Corresponding Author
Yuliatri Sastrawijaya
Institutions
Universitas Negeri Jakarta
Abstract
This study aims to develop learning media for 3-dimensional object modeling video tutorials that will be used in 3-dimensional animated learning on graphic design extracurricular activities at Al-Azhar Bumi Serpong Damai Islamic High School, as well as to find out the feasibility of learning video tutorial media. The 3-dimensional object that will be created is the Iron Man mask. Making 3-dimensional objects using Blender software version 2.79b, while for making tutorial videos use Camtasia software version 8.6.0. The concept of developing video tutorials uses the R & D (Research and Development) method with a development model from the Ministry of Education (2004) in Andi Prastowos book. The stages of development are: (1) making a title, (2) making a synopsis, (3) making a script, (4) taking pictures, (5) editing videos, (6) expert testing, (7) distribution and (8) evaluation. After the media video tutorial is complete, the next is to test the tutorial video for respondents, namely class X and class XI participants of graphic design extracurricular activities at Al-Azhar Bumi Serpong Damai Islamic High School. The results of the respondents trials were scored 84.86%. With details of the aspect of display quality / impressions 86.5%, aspects of interest and attention 74% and aspects of accuracy of material content 87%. Based on the results of these tests, it can be concluded that the learning media (tutorial video) makes Iron Man characters worthy of being used in learning 3-dimensional modeling material on graphic design extracurricular Al-Azhar Islamic High School Bumi Serpong Damai.
Keywords
Media, tutorial videos, modeling, Ministry of Education (2004), Blender, Camtasia
Topic
Computer and Communication Engineering
Corresponding Author
Erfan Handoko
Institutions
1.Dept of Physics. Universitas Negeri Jakarta. Jalan Rawamangun Muka 13220. Jakarta Indonesia
2.Dept. of Physics. Universitas Islam Negeri Syarif Hidayatullah. Jakarta, Indonesia
3.Dept. of Human Medizin, University of JLU Giessen, Germany
5.Dept. of Chemistry. Universitas Negeri Jakarta. Jalan Rawamangun Muka 13220. Jakarta Indonesia
4.Dept. of Biology. Universitas Negeri Jakarta. Jalan Rawamangun Muka 13220. Jakarta Indonesia
Abstract
Structure, and electrical properties of human bloods are studied. The system exhibits a random structure. The X-ray powder diffraction data shows that nano sized human blood has beed formed. Scanning electron microscope analysis exhibits fine structure of human blood. Electrical data of current–voltage characteristics of human blood were measured and analyzed at room temperature.
Keywords
Human blood, nano sized, fine structure , current–voltage
Topic
Physics
Corresponding Author
Tritiyatma Hadinugrahaningsih
Institutions
Universitas Negeri Jakarta, Chemistry Education Department, Faculty of Mathematics and Natural Sciences, Jalan Rawamangun Muka 13220, Jakarta, Indonesia
Abstract
This research aimed to develop the chemistry students- soft skills students through acid-base learning by integrating Think Pair Square (TPSq) in socio critical and problem-oriented approach. The study involved 36 secondaty school students in year-11. The qualitative research methodology with interview, observation, and reflective journal were employed to understand the process and engage the participants. The issues of 1000mg vitamin C, “kangen water”, and infused water in relation to acid-base concept water were used to encourage students- critical thinking in solve the problems. The results showed that students engaged and motivated in meaningful chemistry learning experiences, meanwhile the teacher were challenged in the role as facilitator. The students- soft skills of collaboration and communication skills, critical and creative thinking skills were stimulated within the process. The students have learnt to reflect on their own values during debate in solving the problems. Finally, the learning experiences have challenges both students and teacher in reflecting on their roles to create challenging academic environment.
Keywords
Socio Critical and Problem Oriented, acid base, think pair square (TPSq), soft skills
Topic
Chemistry
Corresponding Author
Erfan Handoko
Institutions
1.Dept of Physics. Universitas Negeri Jakarta. Jalan Rawamangun Muka 13220. Jakarta Indonesia
2.Dept. of Physics. Universitas Islam Negeri Syarif Hidayatullah. Jakarta, Indonesia
3.Dept. of Human Medizin, University of JLU Giessen, Germany
4.Dept.of Electrical Engineering. Universitas Mercu Buana. Jalan Meruya Selatan No.1 Jakarta. Indonesia
5.Dept. of Biology. Universitas Negeri Jakarta. Jalan Rawamangun Muka 13220. Jakarta Indonesi
Abstract
This paper reports a method for measuring for the complex permittivity, permeability and microwave absorption properties of human blood. The measurement using a waveguide in the microwave band. In order to measure the S-parameter of hexagonal ferrite, a sampIe should completely fill in the waveguide end and the sampIe holder. The complex permittivity and permeability of human blood are measured using the vector network analyzer (VNA) in the frequency range from 7 to 14 GHz. Their complex permeability and permittivity, microwave absorption properties values were calculated. The proposed measurement method can be a useful technique for microwave absorption properties of human blood.
Keywords
Human blood, complex permittivity, permeability and microwave absorption
Topic
Physics
Corresponding Author
Rini Puspitaningrum
Institutions
1Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Indonesia 10520
2 Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Indonesia
Abstract
Aging getting more attention in meetings both in between scientists as public. Long telomeres on lymphocytes able predict the aging process and related to change telomerase function. This research aimed to measure levels telomerase enzyme on lymphocytes cell with age 6-8 weeks and 2-3 years. This research used experimental method. This researchwas conductedon February-May 2018 in Laboratory Biochemistry and Biology Molecular Faculty Medical University of Indonesia. Based on the research that has been done, the level of telomerase enzyme in Rattusnorvegicus lymphocytes within age 6-8 weeks had an average 2.24 ± 0.09 pg / mL lymphocyte. Telomerase enzyme levels in lymphocytes aged 2-3 years had an average 2.27 ± 0.15 pg / mL.This research obtained accurate information that can be used to find out each individual who doesn-t show the same level at the same time, was not statistically significantly different. This is an interesting thing to do for a more heterogeneous environment and by paying attention to individuals per individual from various daily activities.
Keywords
Aging , telomerase enzyme, lymphocytes, cell degeneration
Topic
Biology
Corresponding Author
Muhammad Priyono Tri Sulistyanto
Institutions
1 Informatics Study Program, Faculty of Science and Technology, Universitas Kanjuruhan Malang
2 Physics Education Study Program, Faculty of Science and Technology, Universitas Kanjuruhan Malang
3 Department of Electrical Engineering, Faculty of Engineering, Universitas Negeri Malang
Abstract
Energy conservation, especially electricity, can be done by conducting an energy audit. Energy audit activities can analyze and find energy-saving opportunities from energy use. This study developed a prototype of a wireless electrical energy monitoring system on a laboratory scale to monitor the use of electrical energy from both electrical equipment using a microcontroller as a sensor node. These nodes have installed several sensors, namely the current sensor, humidity sensor, temperature sensor and light sensor. The protocol used in communication between nodes and servers is the HTTP protocol in the Internet of Things design that can communicate using internet network intermediaries. Data on the server can be monitored in realtime using the application on the client side.
Keywords
electricity monitoring; electronic energy audit; internet of things
Topic
Computer and Communication Engineering
Corresponding Author
Untung Sumotarto
Institutions
Universitas Trisakti
Abstract
Indonesia has a high geothermal energy resource, preserved in many fields. But not all geothermel fields are potential for indirect utilizations such as for electric power generation. A direct utilization of a low potential geothermal energy resource has been performed at Batukuwung geothermal field, Serang, West Java. A simple design of vegetable grain dryer has been created (constructed) using galvanis metal pipes. A reduction of temperature from 63 degrees Celcius at the heat source to 41 degrees Celcius at the dryer tool through galvanis metal pipes is quite enough for vegetable grain drying purposes. It is quite a prospect simple technology to be applied and developed in Indonesia as a geothermal energy country having various vegetable grain products from various plants such as coffee, corn, peanut and many other tropical plantations.
Keywords
Low potential geothermal field, heat conversion, grain dryer.
Topic
Physics
Corresponding Author
ANDRY PRIMA
Institutions
PETROLEUM ENGINEERING DEPARTMENT
FACULTY OF EARTH TECHNOLOGY AND ENERGY
UNIVERSITAS TRISAKTI
Abstract
Throughout the year of 2016, a number of mainstream mass media in Indonesia reported several recurring refinery unplanned shutdown. As a result, the disruption of nationwide fuel production was unavoidable. This particular study aims at finding qualitative correlation between the refinery unplanned shutdown and the optimized refinery utilization occurred in Indonesia. Question arose over whether the technology installed in the refinery had reached the end of its usage lifetime, or perhaps the management lacked of details in terms of management planning that later fuelled the unwanted incidents. The method being applied in this study is qualitative approach using a non-linear multivariable regression. As the result, a non-linear multivariable regression that incorporates multivariable in an effort to help discover the presumably overlooked information of the past performance as means of management control and to monitor the current refinery utilization performance. In the end, recommendation for improvement as far as the refinery utilization can possibly be achieved in the near future. The conclusion of this particular study is the recommendation for refinery decision maker to improve the scheduling of refinery turnaround and optimize the utilization as well.
Keywords
Keywords: Unplanned shutdown. Refinery turnaround, qualitative approve, non-linear multi variable regression, refinery utilization.
Topic
Management Science
Corresponding Author
Endang Noerhartati
Institutions
a) Department Agroindustrial Technology- Engineering Faculty, Universitas Wijaya Kusuma Surabaya, Indonesia
Jl. Dukuh Kupang XXV/54 Surabaya, Indonesia
*endang.noerhartati[at]gmail.com+endang_noer[at]uwks.ac.id
a) Postgraduate Student, Department of Education Management, Universitas Negeri Surabaya, Indonesia
Jl Kampus Ketintang, Surabaya, Indonesia
endang.18006[at]mhs.unesa.ac.id
b) Department of Medical, Medical Faculty, Universitas Wijaya Kusuma Surabaya, Indonesia
Jl. Dukuh Kupang XXV/54 Surabaya, Indonesia
yuhyi_h[at]yahoo.com+dortasimamora[at]gmail.com
c) Department Agroindustrial Technology-Engineering Faculty, Universitas Wijaya Kusuma
Surabaya, Indonesia
Jl. Dukuh Kupang XXV/54 Surabaya, Indonesia
titian354[at]gmail.com
Abstract
The purpose of the reseach was to analyze the activity of various glycemic indexes of sorghum rice products. The method used is experimental design, with variables of sorghum "nasi", sorghum "bubur", and sorghum "lontong" from red sorghum (Sorghum bicolor) and white sorghum (KD4) varieties. Observations included the glycemic index (GI) and glycemic load (GL), data analysis using the Anova Test followed by the 5% LSD Test. The results showed that the GI and GL significantly for all variable rice products and varieties sorghum; in the highest red sorghum is "Nasi" GI (34,37), GL (3,44); "lontong" GI (33,75), GL (3,37); and the lowest in "Bubur" GI (31,25), GL (3,12); while the highest white sorghum is "Nasi" GI (46,12), GL (4,61); "lontong" GI (35,37), GL (3,1); the lowest in "bubur" GI (23,87), GL (2,38); and the finding is show that the overall glycemic index of sorghum products is classified as low GI (GI <50), so it can be said that sorghum is a food source that can be used as an alternative healthy food.
Keywords
Glycemic index; Glycemic load; Sorghum rice products; Alternative healthy food
Topic
Material Engineering
Corresponding Author
Sri Andayani
Institutions
a)Departement of Agrotecnology, Faculty of Agriculture, Universitas Panca Bhakti Pontianak
Jl Kom Yos Sudarso, Pontianak, Indonesia
sriandayani[at]upb.ac.id+edysyafrilhayat[at]upb.ac.id+herymkurniawan[at]upb.ac.id+agnestutik[at]upb.ac.id
b)Departement of Soil Science, Faculty of Agriculture, Universitas Tanjungpura Pontianak
rita.hayati[at]faperta.untan.ac.id
c*)Departement of Agroindustrial Technology, Faculty of , Engineering, Universitas Wijaya Kusuma Surabaya
Jl. Dukuh Kupang XXV/54 Surabaya, Indonesia
*)endangnoer_uwks[at]yahoo.com+endang_noer[at]uwks.ac.id
c)Postgraduate Student, Department of Education Management, Universitas Negeri Surabaya, Indonesia
Jl Kampus Ketintang, Surabaya, Indonesia
endang.18006[at]mhs.unesa.ac.id
Abstract
The research purposes : (1) Producing enriched compost of oil palm Empty Fruit Bunches (EFB) with coastal mud and rice husk biochar that is suitable for application to acid sulphate soils, (2) Getting the best dosage to increase acid sulphate soil fertility. The method used: complete random design (CRD) factorial pattern, the first factor composition of enriched oil palm EFB compost, second factor : doses of compost enriched. Data analysis using analysis of varian (ANOVA), significant differences continued with Honestly Signicant Difference Test (HSD). The variables observed were: soil pH H2O, exch-Al, Base Saturation, total-N, Bray-P and exch-K. The results showed: compost oil palm EFB treatment significantly affected the exch-K, whilst did not significantly affect the pH H2O, total-N, Bray-P, exch-Al and base saturation. Although enriched compost treatment did not significantly, and the finding is the treatment enriched compost trend to increased pH H2O, total-N and Bray-P.
Keywords
Compost; Oil Palm Empty Fruit Bunch; Rice Husk; Coastal Mud; Sulfuric acid soil
Topic
Environmental Engineering
Corresponding Author
Ananda Dwitha Yuniar
Institutions
(a) Universitas Negeri Malang
Jl. Semarang No. 5, Kota Malang
*ananda.dwitha.fis[at]um.ac.id
Abstract
Public communication campaign held by the Indonesian Government generally aims to achieve the main of integrating functions of several Government programs. The implementation of public communication is intended to send public information and to accommodate public opinion. This necessary for decentralization objective manifestation based on the principle of good public governance, such as Health communication campaign. It is one of the most preference Government endeavors for increasing awareness and improves healthy living to realize the highest standard of public health. Germas (Gerakan Masyarakat Hidup Sehat), whose held by Ministry of Health, was one of the major campaigns in recent years 2018 in Indonesia. Indonesia was facing a big challenge health problem related to non-infectious diseases such as stroke, heart disease, cancer, and diabetes. This paper aims to discuss the effectiveness of Health communication campaign in reducing unhealthy public behavior in Maluku after held one year. Moreover, this paper will analysis media campaign usage to support Germas programs using conceptual analysis.
Keywords
Health Communication; Government; Germas; Campaign
Topic
Government Policy
Corresponding Author
Yanuarius Sani Feka Prof. H. Karim Suryadi, M.Si
Institutions
Post-Graduate Department of Pancasila and Citizenship Education, Faculty of Education, University of Education, Indonesia
Abstract
Border area has strategic values that not owned by the other area and may be vital for the integrity of NKRI. The function of the border area as a tool of upholded the sovereignty of the NKRI region for all forms of menacing from outside and within the country. Large nation and country needed nationalism spirit of their people, nationalism functions to given clear line between appropriate national cultures with the live Indonesian people and foreign culture that reduce the sense of nationalsm nationally, and nasionalism as an ideological movement. Fading of nasionalism spirit from external or internal factors because lack comprehension of people about nasionalism values will have impact with loosing character and nation identity.
Keywords
Nationalism, Values of Nationalism, Border Society
Topic
Social Cultural
Corresponding Author
Mochammad Fahlevi
Institutions
Kusuma Negara Business School
Jakarta, Indonesia
fahlevi[at]stie-kusumanegara.ac.id
Abstract
There are many factors that affect Indonesian public listed companies stock prices. Macroeconomic factors are crucial for any change in national capital markets. The aim of this research study is to focus on examining the impact of foreign exchange rates, inflation rates, and interest rates on stock prices in Indonesia. The monthly data of 5 years range from 2013 to 2017 was used for this research study. The findings of the study revelead that there is a relationship between the dependent and independent variables.
Keywords
Foreign Exchange Rate, Interest Rate, Inflation, Stock Prices, LQ45 Index
Topic
Development Economics
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