151 research outputs found
Kebergantungan Dua Kultivar Pepaya Terhadap Cendawan Mikoriza Arbuskula
Full text linkDua kultivar pepaya telah diinokulasi dengan lima spesies cendawan mikoriza arbuskula (CMA) dalam sebuah percobaan di rumahkaca. Tujuan penelitian ini adalah untuk mengetahui kebergantungan dua kultivar pepaya terhadap cendawan mikoriza. Penelitian dilaksanakan di Rumahkaca Fakultas Pertanian Universitas Padjadjaran, Bandung, dari bulan Agustus sampai November tahun 2001. Penelitian ini disusun menurut rancangan acak kelompok dalam pola faktorial dengan tiga ulangan. Faktor pertama adalah isolat CMA, terdiri dari lima jenis ditambah kontrol (kontrol, Glomus etunicatum, Glomus manihotis, Gigaspora margarita, Acaulospora tuberculata, dan Scutellospora heterogama). Faktor kedua adalah kultivar pepaya, yaitu dampit dan sarirona. Hasil penelitian menunjukkan bahwa kedua kultivar pepaya dapat berasosiasi dengan lima spesies CMA. Isolat A. tuberculata dan G. etunicatum serta kultivar sarirona, secara mandiri memberikan nilai lebih tinggi terhadap serapan fosfor, bobot kering pupus, dan relative mycorrhizal dependency (RMD). Acaulospora tuberculata dan G. etunicatum meningkatkan bobot kering pupus berturut-turut 1.137 dan 1.768% lebih tinggi dibanding kontrol, dengan nilai RMD 89,18 dan 94,29%. Kultivar sarirona mempunyai serapan fosfor, bobot kering pupus, dan nilai RMD yang lebih tinggi dibandingkan dampit. Penggunaan CMA mempunyai prospek yang baik untuk meningkatkan produktivitas pepaya terutama pada lahan bereaksi masam dan rendah fosfor.Mycorrhizal dependency of two papaya cultivars. Two papaya cultivars were inoculated with five species of arbuscular mycorrhizal fungus (AMF) in a greenhouse experiment. The aim of this experiment was to study mycorrhizal dependency on two papaya cultivars. The experiment was conducted at the Screenhouse of Agriculture Faculty of Padjadjaran University, Bandung, from August until November 2001. This experiment was laid in a randomized blocks design in factorial pattern with three replications. The first factor was the AMF isolates i.e. five AMF isolates plus control (control, Glomus etunicatum, Glomus manihotis, Gigaspora margarita, Acaulospora tuberculata, and Scutellospora heterogama). The second factor was papaya cultivars, consisted of dampit and sarirona. The results showed that both papaya cultivars could associated with five species AMF isolates. Acaulospora tuberculata, and G. etunicatum isolates, and sarirona cultivar independently gave higher phosphorus uptake, shoot dry weight, and relative mycorrhizal dependency (RMD). Acaulospora tuberculata, and G. etunicatum isolates increased shoot dry weight 1,137 and 1,768% respectively higher than control, with RMD values were 89.18 and 94.29%. Sarirona cultivar showed higher phosphorus uptake, shoot dry weight, and RMD values than dampit cultivar. The utilization of AMF has good prospect to increase papaya productivity, especially on acid and low phosphorus soils
Peranan Cendawan Mikoriza Arbuskula Terhadap Peningkatan Serapan Hara Oleh Bibit Pepaya
Full text link. An experiment was aimed to find out the role of five arbuscular mycorrhizal fungus isolates in increasing nutrient uptake and biomass production on two cultivars of papaya seedling. The research was conducted at a screen house of Agricul- ture Faculty, Padjadjaran University, from August 2001 until January 2002. This experiment was laid in Randomized Blocks Design in factorial pattern with three replications. The first factor was the kind of mycorrhizaes isolates, con- trol, Glomus etunicatum, Glomus manihotis, Gigaspora margarita, Acaulospora tuberculata and Scutellospora heterogama, and the second factor was papaya cultivars of Dampit and Sari Rona. The results showed that root infec- tion level of papaya seedlings on two months after inoculation influenced by interactions between mycorrhizaes iso- late and papaya cultivars. Acaulospora tuberculata, G. etunicatum, and Gi. margarita isolates showed very high root infection level which was higher than 76% from both papaya cultivars, whereas two other mycorrhizaes isolate showed the lower infection 21.33-59.67%. Nutrient uptake on N,P,K, and shoot dry weight, in autonomous caused by kinds of mycorrhizaes isolate and papaya cultivars. Acaulospora tuberculata and G. etunicatum isolates increased to- tal dry weight 1.028% and 1.632% respectively higher than control. Sari Rona cultivar showed higher nutrient uptake on N, P, K, and shoot dry weight than Dampit cultivar. The mycorrhizaes application for papaya have good prospect, but there needs further studies to know the effectiveness in fertilizer efficiency
Antropologi di Persimpangan Jalan: Refleksi dari Pemahaman akan Tindakan Kaum Muda
No full textIrwan Abdullah presents his argument that the concept of deviant is no longer relevant to the analysis of the activities of young people's. An effort to understand their activities as a subordinate expression of the culture domination is appropriate. Perceiving their activities as deviant cannot be understood with Geertz's cultural concepts. He said that culture is shared values. Young people have their own way in understanding the meaning of life. Their values are not merely inherited from older generation, but the products of the reinterpretation process. The author further argues that in today's social transformation process and media becomes the great agent in disseminates a new life style. This changes is determinant in the formation process of the young people chooses
PENGARUH KEJELASAN SASARAN ANGGARAN, PEMAHAMAN AKUNTANSI, DAN PENGELOLAAN KEUANGAN DAERAH TERHADAP AKUNTABILITAS KINERJA KEUANGAN SKPD DKI JAKARTA
Full text linkIrwan Setiawanto. 2012. The Influence Of Budget Target Clarity, Understanding Of Accounting, and Regional Finance Management To Financial Accountability Performance Of SKPD DKI Jakarta
This research is aiming to (a) knowing how the influence of clarity the target of budget, understanding of accounting, and the regional financial management on financial accountability performance of skpd and (b) how big the influence of inter variable and ( c ) tries to provide advice and input for improvement the quality of government skpd in relation to the regional financial report.
Sample retrieval method that used by the author is a simple random sampling. The data type used is the primary data, for techniques of data collection is done by means of a survey through questionnaires, and also the study of library. Data processing is carried out using SPSS program. Testing used classic assumptions research includes testing of normality, test multikolinieritas, and heterokedastisitas. While the research model used researchers is to use the Linear Regression equation of statistical analysis, as for Multiple hypothesis testing is done with simultaneous significance test, and the significance of partial coefficients of determinant.
Test results indicate that the budget target, variable clarity of understanding of accounting and financial management of influential simultaneously against accountability, while test results are partial indicates a variable target clarity of budget and financial management significantly give an influense to accountability, while understanding of accounting does not provide any significant effects. Results of the regression analysis shows the value of the coefficient of determinant (R square) of 39,5%, meaning that all independent variables provide a pretty strong correlation to the variable accountability
Wave run-up of a possible Anak-Krakatau tsunami on planned and optimized Jakarta Sea Dike
Full text linkThe infrastructural plans in the Jakarta Bay to reduce risks of flooding in Jakarta city comprise a large Sea Dike that encloses a retention lake. Part of the planned dike has the shape of the iconic Garuda bird. This paper shows that if in the future an explosion of Anak Krakatau will occur with strength 1/4th of the original Karkatau 1883 explosion, wave crests of 11m and troughs of 6m may collide against the bird's head. As an alternative example, a more optimized design of the dike is constructed that reduces the maximal wave effects considerably.</p
Calculation System Computerized Royalty / Fee Author in CV. Ghalian Indonesia
Full text linkOnce the importance of the role of presenting the report royalties / fee author on the CV. Ghalia Indonesia, especially for the administration / administration because it can affect perpormance and improvement of the company. Activities of this author's presentation of the report i s still using the manual way, ie in terms of the counting process by the administrative fee, in addition, it needs a lot of places to store the lists of books and lists the security of transactions take a long time and other things. Seeing the lack of efficiency of the above activities, the problem also influences the effectiveness of future work, while the number of lists of books, branches and transactions continue to increase and require more rapid and precise information, it is worth noting and created a system computerize
ANALISIS KINERJA PANEL SURYA PADA ALAT PEMBERI PAKAN IKAN OTOMATIS BERBASIS MIKROKONTROLER ARDUINO
Full text linkMukhammad Irwan Sya’bani, 2025. "Analisis Kinerja Panel Surya Pada Alat Pemberi Pakan Ikan Otomatis Berbasis Mikrokontroler Arduino". Skripsi program studi Teknik Mesin, Fakultas Teknik dan Ilmu Komputer, Universitas Pancasakti Tegal.
Alat pemberi pakan ikan ini merupakan alat untuk memberi pakan ikan secara otomatis sesuai waktu yang sudah ditentukan dan untuk pengoprasiannnya diperlukan daya listrik yang mana daya listik tersebut diperoleh dengan memanfaatkan energi matahari melalui panel surya, artinya energi matahari akan dikonversikan menjadi energi listrik dan disimpan pada baterai (Accu) untuk mengoprasikan alat tersebut ketika panas matahari berkurang. Untuk itu penulis melakukan pengujian terhadap panel surya dan baterai dengan melakukan pengukuran konsumsi baterai dan lama tahan baterai terhadap penggunaan alat pemberi pakan ikan otomatis tersebut.
Penelitian ini menggunakan metode eksperimen yaitu dengan cara melakukan pengujian lama tahan baterai terhadap beban motor dc yang digunakan untuk melontarkan pakan ikan dan melakukan pengujian terhadap daya panel surya untuk menentukan daya terbesar dari masing masing sudut 45°, 90° dan 135° yang akan digunakan untuk mengoprasikan alat pemberi pakan ikan otomatis berbasis mikrokontroler arduino secara maksimal.
Hasil penelitian menunjukkan bahwa rata-rata daya pada panel surya setiap sudut yang terbesar adalah pada sudut 45° pada pengambilan data hari ketiga dengan nilai 3,28 Watt setiap jamnya . Pada pengujian lama tahan baterai (Accu) terhadapat beban motor dc bahwa baterai 12V/12Ah digunakan untuk mensuplai energi listrik pada beban dengan daya 63,96 Watt setiap 2 kali pemberian pakan dalam sehari mampu bartahan selama 2,03 jam, sedangkan pemberian pakan ikan membutuhkan waktu 10 detik dalam satu kali pemberian pakan ikan. Kelebihan dari alat ini adalah ketepatan waktu dalam proses pemberian pakan ikan secara otomatis.
Kata kunci: Pemberi Pakan Ikan Otomatis, Daya Panel Surya, Konsumsi Baterai
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ABSTRACT
Mukhammad Irwan Sya'bani, 2025. "Analysis of Solar Panel Performance on an Arduino Microcontroller-Based Automatic Fish Feeder". Thesis, Mechanical Engineering study program, Faculty of Engineering and Computer Science, Pancasakti University, Tegal.
This fish feeder is a tool for feeding fish automatically according to a predetermined time and for its operation requires electrical power which is obtained by utilizing solar energy through solar panels, meaning that solar energy will be converted into electrical energy and stored in the battery (Accu) to operate the tool when the heat of the sun decreases. For this reason, the author tested the solar panel and battery by measuring battery consumption and battery life against the use of the automatic fish feeder.
This study uses an experimental method, namely by testing the battery life of the DC motor load used to throw fish food and testing the solar panel power to determine the greatest power from each angle of 45 °, 90 ° and 135 ° which will be used to operate the automatic fish feeder based on the Arduino microcontroller to the maximum.
The results showed that the average power on the solar panel at each angle was the largest at an angle of 45 ° on the third day of data collection with a value of 3.28 Watts per hour. In the battery life test (Accu) against the DC motor load, a 12V / 12Ah battery was used to supply electrical energy to the load with a power of 63.96 Watts every 2 times of feeding in a day, it was able to last for 2.03 hours, while feeding fish takes 10 seconds in one feeding of fish. The advantage of this tool is the timeliness of the process of feeding fish automatically.
Keywords: Automatic Fish Feeder, Solar Panel Power, Battery Consumptio
Simple deformation modelling using GNSS GPS data at Minahasa subduction
No full textNorth Sulawesi Trench or Minahasa subduction area is a subduction zone between the oceanic crust of Sulawesi Sea and the North Sulawesi Arm located at the triple junction in Eastern Indonesia. This subduction activity causes the North Arm of Sulawesi as an earthquake-prone area. Tectonic activities in the region can be studied through geodetic monitoring using GNSS GPS observations and by physical modelling from the rate of geodetic geometric results. Yearly GNSS GPS campaign have been conducted in the region from 1997 to 2008 and continuously observed by BIG from 2008 to 2016 using permanent GNSS GPS stasion. The coordinates of monitoring stations realized in ITRF-2008 provide residual RMS values of 3.13 mm, 4.15 mm and 7.26 mm for the northern, eastern and vertical components, where this indicates a high degree of accuracy. A simple estimation profile using GNSS GPS data based on the Okada elastic equation for the subduction zone shows a subduction movement ranging from 4 to 5 cm/yr with a locking depth of about 50 km, a dip 300 and ending in the post-seismic phase due to the sequence of earthquakes occurring in Minahasa since January 1, 1996 Mw 7.9 to 16 June 2002 Mw 5.9.Astrodynamics & Space Mission
ANALISA PERBANDINGAN QUALITY OF SERVICE JARINGAN VOICE OVER INTERNET PROTOCOL DENGAN SISTEM ENKRIPSI VIRTUAL PRIVATE NETWORK (VPN), TRANSPORT LAYER SECURITY (TLS), DAN SECURE REALTIME TRANSPORT PROTOCOL (SRTP)
No full textANALISA PERBANDINGAN QUALITY OF SERVICE JARINGAN VOICE OVER
INTERNET PROTOCOL DENGAN SISTEM ENKRIPSI VIRTUAL PRIVATE
NETWORK (VPN), TRANSPORT LAYER SECURITY (TLS), DAN SECURE REALTIME
TRANSPORT PROTOCOL (SRTP)
Irwan Anggara
1312506
Jurusan Teknik Elektro S-1, Konsentrasi Teknik Komputer
Fakultas Teknologi Industri, Institut Teknologi Nasional Malang
Jln. Raya Karanglo Km 2 Malang
[email protected]
ABSTRAK
Layanan teknologi komunikasi pada internet merupakan sarana yang yang tidak asing
pada semua kalangan. Teknologi komunikasi internet memiliki dua kategori protokol yang
digunakan, yaitu secara non real-time dan real-time. Non real-time merupakan suatu
kategori protokol komunikasi internet yang tidak memiliki batas waktu komunikasi contoh
dari non real-time yaitu FTP, SMTP, dan HTTP. Real-time merupakan suatu kategori dari
komunikasi internet yang memiliki batas waktu tertentu dalam melakukan komunikasi,
contohnya Voice Over Internet Protocol. Voice Over Internet Procol (VOIP) merupakan
komunikasi paket suara yang diproses menjadi paket data, lalu dikirimkan melalui protokol
RTP. Komunikasi dengan VOIP tidak memiliki jaminan keamanan saat paket dikirimkan,
dengan hal ini VOIP menyediakan beberapa jenis keamanan contohnya menerapkan
keamanan enkripsi Virtual Private Network (VPN), Transport Layer Security TLS, dan
Secure Real-time Tranport Protocol (SRTP), dengan menerapkan beberapa keamanan ini
penulis mencoba membandingkan pengaruh performa hasil pengujian ketika Voice Over
Internet Protocol menerapkan sistem keamanan tersebut. Penulis melakukan pengujian
dengan topologi WAN secara simulasi dengan GNS3 dan real requipment router cisco.
Kata Kunci: Teknologi Komunikasi, Non Real-time, Real-time, VOIP,VPN,TLS,SRTP
Communication technology Internet services is familiar tool in people. Internet
communication technology has two categories of protocols used, i.e non-real-time and realtime.
Non real-time is a category of Internet communication protocol that has no real-time
communication deadline, for example FTP, SMTP, and HTTP. Real-time is a category of
Internet communication that has a certain time limit in communication, for example Voice
Over Internet Protocol. Voice Over Internet Procol (VOIP) is a voice packet communication
processed into a data packet, then transmitted over the RTP protocol. VOIP Communication
has no security guarantees when the package is shipped, with this VOIP provides some
security types for example implementing the security of Virtual Private Network (VPN)
encryption, Transport Layer Security (TLS), and Secure Real-time Tranport Protocol (SRTP),
author tries implementing some security to compare the effect of test result performance,
when Voice Over Internet Protocol implements the security system. Authors tested WAN
topologies simulated with GNS3 and cisco's real-time router requests.
Keywords: Communication Technology, Non Real-time, Real-time, VOIP, VPN, TLS, SRT
CALCULATION SYSTEM COMPUTERIZED ROYALTY / FEE AUTHOR IN CV. GHALIAN INDONESIA
No full textOnce the importance of the role of presenting the report royalties / fee author on the CV. Ghalia Indonesia, especially for the administration / administration because it can affect perpormance and improvement of the company. Activities of this author's presentation of the report i s still using the manual way, ie in terms of the counting process by the administrative fee, in addition, it needs a lot of places to store the lists of books and lists the security of transactions take a long time and other things. Seeing the lack of efficiency of the above activities, the problem also influences the effectiveness of future work, while the number of lists of books, branches and transactions continue to increase and require more rapid and precise information, it is worth noting and created a system computerize.
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