Online Journals Universitas Kristen Indonesia
Not a member yet
2989 research outputs found
Sort by
Culturally Contextualized E-Module Based on Papua: Why Teachers and Students Need It for Teaching Linear Programming Material?
Get PDFThe use of e-modules in mathematics learning significantly aids both teachers and students in the teaching and learning process. However, the design of e-modules has not been extensively linked to the cultural context in which students live. Therefore, this study aims to explore and analyze the needs of teachers and students in developing culturally integrated e-modules, particularly those reflecting the culture of Papua, for high school students. The research design employed is phenomenological. Participants included Mathematics teachers for grades X, XI, and XII in Nduga Regency, Papua Highlands, and 64 high school students (42 male and 22 female). Data collected from observations and interviews were qualitatively analyzed using Miles-Huberman Interactive Analysis. Findings revealed that the high schools still use the 2013 curriculum, relying on standard textbooks as teaching materials. These textbooks pose problems for students as they are often uninteresting, use formal language, are difficult to understand due to abstract content, and are not contextualized to students\u27 daily lives. Additionally, the reduction in face-to-face learning hours, due to the school\u27s location in a conflict area, hampers effective teaching and learning processes. Another interesting finding is that high schools in Nduga Regency have not yet utilized technology in learning, despite having internet access. These findings imply the need for teaching materials integrated with technology and local culture to help students understand mathematics concepts and assist teachers in teaching both inside and outside the school
RANCANG BANGUN SISTEM PENGENDALI KURSI RODA LISTRIK PENYANDANG DISABILITAS BERBASIS MIKROKONTROLER ARDUINO UNO ATmega 328P
Get PDFFor people with physical impairments, wheelchairs are the tools that are most widely used in their activities and are also the most widely used in hospitals. There are two types of wheelchairs that are often used, namely manual wheelchairs and electric wheelchairs. The electric wheelchair is designed using an Arduino Uno microcontroller, a set of buttons, and a motor driver circuit. Using the Arduino Uno as a microcontroller makes the system cost-effective and easy to access. Electric wheelchairs can move on a flat track using a pushbutton, which means the wheelchair can be moved easily. This research also uses the Arduino uno ATmega 328P as a wheelchair controller which is modified into two types, namely fast and slow according to the motor and battery capabilities. The performance test on this wheelchair includes the ability to lift loads with a maximum weight of 18 kg and subjects with an age range of 21 to 26 years with a maximum subject weight of 65 kg. From the test results, the wheelchair with a load of 11-18kg can move around 1.00 – 10.84 s. test results with subjects weighing 49-66kg moving around 1.00 – 8.00 s for each different weight.Bagi penyandang disabilitas tunadaksa kursi roda merupakan alat bantu yang paling banyak digunakan dalam beraktivitas dan juga paling banyak digunakan pada rumah sakit. Ada dua macam kursi roda yang sering digunakan yaitu kursi roda manual dan kursi roda elektrik. Kursi roda elektrik di rancang dengan menggunakan mikrokontroler Arduino uno, satu set tombol, dan rangkaian driver motor.. Penggunaan Arduino Uno sebagai mikrokontroler membuat sistem hemat biaya dan mudah diakses. Kursi roda listrik dapat bergerak pada lintasan datar dengan menggunakan bantuan pushbutton, yang dimana kursi roda dapat digerakkan dengan mudah. Penelitian ini juga memanfaatkan Arduino uno ATmega 328P sebagai pengontrol kursi roda yang dimodifikasi menjadi dua tipe yaitu cepat dan lambat sesuai dengan kemampuan motor dan aki. Uji performa pada kursi roda ini meliputi kemampuan mengangkat beban dengan berat maksimal 18 kg dan subjek dengan rentang usia 21 hingga 26 tahun dengan berat maksimal subjek 65kg. dari hasil pengujian, menghasilkan kemampuan kursi roda dengan beban 11-18kg bergerak sekitar 1.00 – 10.84 s. hasil uji dengan subjek dengan berat 49-66kg bergerak sekitar 1.00 – 8.00 s untuk setiap berat yang berbeda. 
ANALISIS ALIRAN DAYA PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ON – GRID 3540 Wp MENGGUNAKAN KWH METER DUA ARAH PADA LABORATORIUM TEKNIK MESIN, FAKULTAS TEKNIK UKI – JAKARTA DENGAN BEBAN MESIN PENCACAH SAMPAH 2 HP
Get PDFThe PLTS installed at the Mechanical Engineering Laboratory, Faculty of Engineering, UKI Jakarta is an On-Grid PLTS that plays a significant role in the development of technology and research in the fields of mechanical engineering and energy. The 2 HP waste shredder, used to recycle waste into reusable materials, is part of the efforts towards sustainability and efficient waste management. To support the operation of the waste shredder and reduce electricity costs, the laboratory has installed an On-Grid PLTS with a capacity of 3540 Wp. Based on power measurement data under no-load and load conditions with the 2 HP waste shredder, there was an energy export of 8 kWh and an energy import of 1 kWh over 11 hours. The power factor under no-load conditions was good, ranging from 0.96 to 1, which meets the standards set by PLN. However, the power factor when using the 2 HP waste shredder load ranged from 0.1 to 0.72, which does not meet PLN standards. The low power factor is due to the inductive load effect of the single-phase induction motor, such as that of the 2 HP waste shredder.PLTS yang terpasang di Laboratorium Teknik Mesin, Fakultas Teknik UKI – Jakarta adalah sistem PLTS On-Grid yang berperan penting dalam pengembangan teknologi dan penelitian di bidang teknik mesin dan energi. Mesin pencacah sampah dengan daya 2 HP, yang digunakan untuk mendaur ulang sampah menjadi bahan yang dapat dimanfaatkan kembali, merupakan bagian dari upaya keberlanjutan dan pengelolaan limbah yang efisien. Untuk mendukung operasional mesin pencacah sampah dan mengurangi biaya listrik, laboratorium ini memasang sistem PLTS On-Grid dengan kapasitas 3540 Wp. Berdasarkan hasil pengukuran daya pada saat tanpa beban dan dengan beban mesin pencacah sampah 2 HP, terjadi ekspor energi sebesar 8 kWh dan impor energi sebesar 1 kWh dalam waktu 11 jam. Faktor daya pada kondisi tanpa beban adalah sebesar 0,96 - 1, yang sesuai dengan standar yang ditetapkan oleh PLN. Namun, pada saat menggunakan beban mesin pencacah sampah 2 HP, faktor daya menurun menjadi 0,1 – 0,72, yang tidak memenuhi standar PLN. Rendahnya faktor daya ini disebabkan oleh pengaruh beban induktif dari motor induksi satu fasa seperti mesin pencacah sampah 2 HP.
 
ANALISIS KINERJA PLTS ON GRID 3.540 WP DENGAN BEBAN MESIN PENCACAH SAMPAH 2HP DI FAKULTAS TEKNIK UKI JAKARTA
Get PDFABSTRACT
Fossil energy, which is the main source of electricity generation in many countries, makes a major contribution to air pollution and greenhouse gas emissions. Volioh photo solar energy panels (PV) offer an environmentally friendly solution, by utilizing abundant and unlimited solar energy. On-grid PV systems connect solar power plants to the power grid, enabling distributed energy production and efficient utilization of renewable resources. This research The use of on-grid PV-based solar energy is expected to be an important step in creating a more sustainable, efficient and environmentally friendly energy system.
The results of the research show that when measuring PV without load, the PV voltage increases as the light intensity received by the PV increases, but the PV voltage experiences saturation starting from the light intensity of 164 lux.
In the PV test under load the voltage is almost constant around (226.2 to 237.6) votl with changes in load current around (4.94 to 6.76) A
Keywords: Solar Power Plant (PLTS). On-grid, Renewable Energy, Photovoltaic (PV) Solar Panels.
ABSTRAK
Energi fosil, yang merupakan sumber utama pembangkit listrik di banyak negara, berkontribusi besar terhadap polusi udara dan emisi gas rumah kaca. Energi panel surya foto volioh (PV) menawarkan solusi yang ramah lingkungan, dengan memanfaatkan energi matahari yang melimpah dan tidak terbatas. Sistem on-grid PV menghubungkan pembangkit listrik tenaga surya ke jaringan listrik, memungkinkan produksi energi yang terdistribusi dan pemanfaatan sumber daya terbarukan secara efisien. Penelitian ini Penggunaan energi surya berbasis PV on-grid diharapkan dapat menjadi langkah penting dalam menciptakan sistem energi yang lebih berkelanjutan, efisien, dan ramah lingkungan.
Hasil penelitian menunjukkan bahwa Pada pengujian PV tanpa beban, tegangan PV semakin besar seiring betambahnya intensitas cahaya diterima oleh PV, namun tegangan PV mengalami kejenuhan mulai intensitas cahayanya 164 lux
Pada pengujian PV keadaan berbeban tegangan hampir konstan sekitar ( 226,2 s/d 237,6 ) votl dengan perubahan arus beban berkisar ( 4,94 s/d 6,76) A
Kata kunci:Pembangkit Listrik Tenaga Surya( PLTS) . On-grid, Energi Terbarukan, Panel Surya Fotovoltaik (PV)
RANCANG BANGUN STERING HANDLE UNTUK KEGIATAN BALAP INTERNASIONAL SEPEDA MOTOR KELAS 250CC PRODUKSI MASAL
Get PDFSteering handle atau biasa disebut handle bar merupakan komponen yang sangat penting untuk pengendalian sebuah kendaraan roda dua, dalam kegiatan harian steering handle ini sangat berpengaruh terhadap ergonomi kendaraan tersebut. Sama halnya dengan sepeda motor harian, sepeda motor balap juga sangat membutuhkan design ergonomi yang tepat dan nyaman agar posisi pebalap nyaman dan dapat mengendalikan unit balapnya dengan baik. Namun untuk design steering handle racing memiliki dimensional yang berbeda dengan design kendaraan harian. Hal ini dikarenakan poisis pebalap yang akan lebih menunduk dan meletakkan titik berat tubuhnya pada posisi terbawah untuk mendapatkan center of grafity yang lebih baik. Karena hal ini maka dilakukan pembuatan design yang akan sesuai dengan posisi mengemudi pebalap dengan memperhatikan faktor ergonomi dan juga kekuatan dari material penyusun steering handl
Penyuluhan Peningkatan Spiritualitas Anak Usia Dini Dan Mentalitas Gemilang Bagi Warga Jakarta Utara
Get PDFThe community service program in the Tambora area, North Jakarta, located under the highway, is an effort by Christian University of Indonesia (UKI) to respond to significant challenges related to the quality of life and development of early childhood children in the area. The local community, mostly consisting of families with weak economic conditions and limited access to education, faces various health problems due to inadequate environmental conditions, including skin diseases and respiratory issues exacerbated by pollution. This program, as an implementation of the Christian Religious Education Course and part of the Tri Dharma of Higher Education, is designed to enhance the spirituality and mentality of children in the community. The methods used involve in-depth needs analysis through surveys, interviews, and observations to understand the challenges faced by the community. Based on these findings, relevant and contextual teaching materials are prepared, focusing on strengthening the spirituality of children through educational and creative activities aligned with religious values. The program also emphasizes the development of mental resilience through psychological techniques designed to cope with difficult situations. The results of the program show that through active interaction between UKI students and the local community, there is an increased understanding and deeper daily practice related to faith and health values. This program not only positively impacts the local community but also strengthens the relationship between the university and the community, providing valuable practical experience for students in fulfilling their roles as agents of social change.Program pengabdian kepada masyarakat di kawasan Tambora, Jakarta Utara, yang berada di bawah jalan tol, merupakan upaya Universitas Kristen Indonesia (UKI) untuk merespons tantangan signifikan terkait kualitas hidup dan perkembangan anak-anak usia dini di wilayah tersebut. Masyarakat setempat, yang sebagian besar terdiri dari keluarga dengan kondisi ekonomi lemah dan minimnya akses pendidikan, menghadapi berbagai masalah kesehatan akibat lingkungan yang tidak memadai, termasuk penyakit kulit dan gangguan pernapasan yang diperparah oleh polusi. Program ini, sebagai implementasi dari Mata Kuliah Pendidikan Agama Kristen dan bagian dari Tri Dharma Perguruan Tinggi, dirancang untuk meningkatkan spiritualitas dan mentalitas anak-anak di komunitas tersebut. Metode yang digunakan melibatkan analisis kebutuhan mendalam melalui survei, wawancara, dan observasi untuk memahami tantangan yang dihadapi masyarakat. Berdasarkan temuan ini, materi ajar yang relevan dan kontekstual disusun, dengan fokus pada penguatan spiritualitas anak-anak melalui kegiatan edukatif dan kreatif yang sesuai dengan nilai-nilai agama. Program ini juga menekankan pengembangan ketahanan mental melalui teknik psikologis yang dirancang untuk menghadapi situasi sulit. Hasil program menunjukkan bahwa melalui interaksi aktif antara mahasiswa UKI dan masyarakat setempat, terdapat peningkatan pemahaman dan praktik keseharian yang mendalam terkait nilai-nilai iman dan kesehatan. Program ini tidak hanya memberikan dampak positif bagi komunitas lokal, tetapi juga memperkuat hubungan antara universitas dan masyarakat, serta memberikan pengalaman praktis yang berharga bagi mahasiswa dalam menjalankan peran mereka sebagai agen perubahan sosial
Representasi Ketidaksetaraan Gender dalam Film Dua Hati Biru
Get PDFThis research aims to describe the representation of gender relations inequality in the movie Dua Hati Biru (Roland Barthes Semiotics Analysis). In this study, researchers used a qualitative descriptive method approach using the theory of semiotic theory by Roland Barthes. By using data collection techniques in the form of documentation and observation. The data validity used in this research is Data Triangulation. This research uses the movie Dua Hati Biru as a research subject related to gender relations inequality because in this movie there are various signifiers and signs that can represent gender relations inequality. The results of the researcher\u27s observation, there are 6 scenes that can represent the inequality of gender relations in the movie Dua Hati Biru. This research shows that the film Dua Hati Biru represents gender relations inequality in the form of stereotypes, subordination, marginalization, double burden, discrimination, and patriarchal culture
THE INFLUENCE OF PROMOTION, PRICE AND PRODUCT QUALITY ON THE PURCHASE DECISION OF HONDA MOTOR PARTS (CASE STUDY IN AHASS HONDA INTI MOTOR DEPOK)
Get PDFAhass Honda Inti Motor is a company engaged in the motorcycle repair shop (spare parts service, spare parts and others). This dealership was built to be a solution to the many motorcycle dealers around Depok that have not been officially standardized. but according to the comparison and consideration for consumers. However, this dealer has several problems, such as consumers around Depok who prefer to service at unofficial dealers, even though in terms of spare parts security, it is the official dealer who has a better level of security. The variables used in this research study are Promotion (X1), Price (X2) and Product Quality (X3) and indicators of customer satisfaction are the main things studied. This research has a quantitative type and the data is processed using Rank Spearman. A total of 52 people were respondents in this research study. The research findings state that the effect of promotion on purchasing decisions is due to the rcount results being more than rtable. And there is a price effect on purchasing decisions because rcount is greater than rtable. There is a Quality Effect on Purchasing Decisions because the rcount value is more than the rtable.
Key Words: Promotion, Price, Product Quality and Purchasing Decisio
The Impact of Instagram Content Marketing and Brand 1mage on the Purchasing Choices of PT Anggie Rassly Andalan\u27s Eyebrow Pencils
Get PDFAnna Larasati, The Impact of Instagram Content Marketing and Brand Image on the Purchasing Choices of PT Anggie Rassly Andalan\u27s Eyebrow Pencils
This research aims to analyze the impact of Instagram Content Marketing and Brand Image on the decision to purchase eyebrow pencils from PT Anggie Rassly Andalan. The primary data used is original data obtained through distributing questionnaires to 68 respondents using the purposive sampling method. The population in this study were all consumers who had purchased Anggie Rassly\u27s eyebrow pencil twice. Samples were taken according to the Lemeshow formula because the population is unknown. The independent variables studied include ContentMarketing and BrandImage, while the dependent variable is purchasing decisions. The analysis carried out includes Validation tests, reliability assessments, tests of classical assumptions, t-tests, F-tests, multiple linear regression analyses, and the determination coefficient (R2). The results of this research show that: (1) There is an impact of content marketing on the decision to purchase Anggie Rassly\u27s eyebrow pencil. (2) There is an impact of Brand Image on the decision to purchase Anggie Rassly\u27s eyebrow pencil. (3) There is an influence of ContentMarketing and BrandImage together on the decision to purchase Anggie Rassly\u27s eyebrow pencil
THE INFLUENCE OF PROFITABILITY, LEVERAGE, AND COMPANY SIZE ON COMPANY VALUE (Case Study of Food and Beverage Sub-Sector Companies Listed on the Indonesia Stock Exchange for the 2018-2021 Period)
Get PDFThese studies aims to determine Effects of Pro fitabilities, Leveraged, and Companies Size on Companies Values (In Foods and Beverages Sub-Sector listed on Indonesian Stock Exchanges for periodic 2018 to 2021) both partial and simultaneously, samples in these studies were obtaining use purposive sampling techniques, so that 15 samples were obtaining with researched periodic 2018 to 2021. Data types use secondaries data, data analyst use classical assumption tested and hypothesis tested use panel data regresion analyst use Eviews 12 tool. researched model using in analyst is use chow tested and hausman tested with Random effects model method. results of these studies show that partial hypothetical calculation of Profitabilities variable has a significant effects on Companies Value. Laverage and Companies Size have no effects on Companies Value. and for simultaneous tested results obtaining F calculate > F table = 0.006646 < 0.05 means testeding Profitabilities (X1), Leveraged (X2) and Companies Size (X3) have a simultaneous effects on Companies Values (Y). From results of these studies, Coeficient of Determination (R2) with a values of 0.151482 means that 15.14% of disclosures are explaining by Profitabilities, Leveraged and Companies Size.
Keywords: Profitability, Leverage and company Siz