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Inventarisasi Potensi Daya Saing Spasial Lahan Rawa Lebak untukPengembangan Pertanian di Sumatera Selatan Waluyo, Waluyo; Alkasuma, Alkasuma; Susilawati, Susilawati; Suparwoto, Suparwoto
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.1.1.2012.9

Abstract

Waluyo, Alkasuma, Susilawati, Suparwoto. 2012 Spatial Inventory of Potential Competitiveness Swamp Land for Agricultural Development in South Sumatra. J. Lahan Suboptimal 1(1):64-71. Swampy marsh land has great competitive advantage for farmland development.The purposes of this study were 1)to identify the spread of potential swampy marsh land for food crops in major production centers; 2)to understand thecontent, quantity,and distribution of minerals essential for health in the low lands of South Sumatra. Data were collected through some surveys using transects (toposequen), including delineation of maps, flooding/ground water, state of the microrelief, soilbase material, land use, and land surface condition. Ground observations were based on the Soil Survey Manual. The results indicated that Sungai Pinang and Rantau Panjang has three types of swampy land, namely shallow swampy marsh, mid marsh low lands, and swamps in the low lands. Swampy marsh as the potential competitiveness for its antioxidant mineral deposit (Fe, Mn, Cu, Zn, and Se) can produce good functional food products such as Padi seputih, Pelita Rampak, Ketan Sinde, Padi Petek. These varieties have considerably high antioxidant mineral. Therefore, the use of swampyland must be directed. Shallow and intermediate wetlands can be used for rice, pulses and vegetables whereas deep wetlands are suitable for fishing.
The Application of Scilab Software in Frequency Mode Simulation on the Circular Membrane Handayani, Dwi Nova Siti; Pramudya, Yudhiakto; Suparwoto, Suparwoto; Muchlas, Muchlas
Journal of Physics: Theories and Applications Vol 2, No 2 (2018): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jphystheor-appl.v2i2.31274

Abstract

Scilab software is utilized for solving physics cases in two dimensional wave equations. This study aims to obtain a frequency mode simulation on the circular membrane so that it can display the wave pattern of each frequency mode. The method is to compare the simulation results with the normal mode circular membrane in each mode in to the theoretical calculation. The simulation has been done by utilizing the physics concept in a wave equation involving cos θ. The function of the wave equation is , assuming that r is the radius of the circle membrane. The value of the vibration  frequency mode in theoretical are f01 = (200.6 ± 2.0) Hz, f11 = (319.7 ± 3.1) Hz,  f21 = (428.5 ± 4.2) Hz. By using the Scilab program application, the results obtained show that the results frequency mode simulation f01, f11, dan f21 are similar to the normal mode in theoretical calculation. Thus, the simulation can be used to visualize waves of two dimensions in vibration and wave learning.
Experimental Study of Spectral Induced Polarization Response Based on Laboratory Measurement Zaky, Dicky Ahmad; Suparwoto, Suparwoto
Jurnal Geofisika Vol 16 No 2 (2018): Jurnal Geofisika
Publisher : Himpunan Ahli Geofisika Indonesia (HAGI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36435/jgf.v16i2.374

Abstract

The spectral induced polarization (SIP) method can provide apparent complex resistivity based on measurements of multi frequency. SIP method also can provide more detail information about physical properties of rocks and minerals because SIP can give spectral parameters or Cole-Cole parameters such as, changeability (m), time constant (?) and frequency dependence (c). An Experimental study in laboratory has been conducted to knowing the SIP response of some test sample. The measurement system is built with digital oscilloscope Pico ADC-100 as device for sampling the input and output voltage. Amplifier is used to doubled up the signal and input differential. The range frequency of measurement is 10?2 Hz - 103 Hz. Porouspot Cu ? CuSO4 is used to minimize the polarization at potential electrode. A Matlab listings is used to calculate the response of impedance and phase. The result from calibration that used the parallel circuit RC indicate that the measurement system was good. SIP response of porous model indicate that the response form an asymptotic resistivity, and the peak of phase is in the range frequency where the dispersion happen. The result also indicate that resistivity of small grain size model is larger than the big grain size model. Result from sample of mineralized rocks did not indicate a perfect SIP response, it is influenced by the contact between mineral and water was minimum.
PENGEMBANGAN SSP FISIKA MODEL INKUIRI TERBIMBING BERBANTUAN EDMODO POKOK BAHASAN FLUIDA STATIS Maulida, Dina Rahmah; Suparwoto, Suparwoto; Pramudya, Yudhiakto
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

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Abstract

This study aims to develop physics Specific Pedagogy (SSP) Subjects of Edmodo-assisted guided inquiry model of static fluid subject and describe the feasibility of the products it produces. The research design used in this study is the 4-D Research and Development (R & D) model, with define, design, develop and disseminate stages. In this regard, disseminate merely provides products to schools. Research subjects in class XI MIPA 5 as part of a limited trial of the products produced. The instrument used in this study is the SSP validation sheet which includes syllabi, RPP, and LKPD. Data collection is done using validationsheets and questionnaires. The data analysis technique used is by describing the validation results forwarded by calculating CVR (Content Validity Ratio) and CVI (Content Validity Index). To determine the reliability of the product, PA (Percentage Agreement) is used. Inthis study, the results of the validation of the SSP obtained include the syllabus of 3.75, RPP 3.68, and LKPD 3.60 categorized as valid with the PA value for syllabus of 96.88%, RPP 97.26% and LKPD 97.19 % categorized as reliable. The CVI value for the syllabus is 0.60,RPP 0.55, and LKPD 0.36. Whereas CVR assessment is categorized as valid. So that it can be concluded that, the Physical Specific Pedagogy (SSP) subject of edmodo assisted inquiry inquiry on the topic of static fluid is feasible to be used in learning.  Keywords: Subject Specific Pedagogy, Guided Inquiry, Edmodo, Static Fluid
PURWARUPA SISTEM PEMANTAU GETARAN JEMBATAN MENGGUNAKAN SENSOR ACCELEROMETER Udianto, Ungguh; Basuki, Panggih; Suparwoto, Suparwoto
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 3, No 2 (2013): October
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (793.689 KB) | DOI: 10.22146/ijeis.3893

Abstract

Abstrak            Telah berhasil dibuat rancangan purwarupa sistem pemantau getaran jembatan menggunakan sensor accelerometer ini terdapat sensor akselerometer MMA7361, board Arduino Uno, dan Modul Radio Frekuensi APC 220. Pada penelitian ini, dibuat simulasi getaran menggunakan purwarupa jembatan peraga dengan beban yang bervariasi sebagai percobaannya.Beban getaran divariasikan sebanyak tiga variasi. Sensor akan mendeteksi perubahan getaran yang ada pada jembatan saat dilalui oleh beban yang menggelinding di atasnya. Sensor akan mengirimkan sinyal analog ke Arduino Uno. Di dalam Arduino, sinyal analog akan diubah menjadi digital. Data tersebut dikirimkan ke ground segment secara wireless menggunakan Radio Frekuensi APC 220. Ground segment berfungsi sebagai pemantau dan penampil getaran yang dideteksi oleh sensor.Microsoft Office Access 2007 digunakan untuk media menyimpan database.Fast Fourier Transform (FFT) digunakan sebagai alat untuk menganalisis data.Data yang dianalisis adalah data percepatan yang tersimpan pada database.Data diambil sebanyak waktu tempuh beban menggelinding melewati purwarupa jembatan pada tiap variasi beban. Hasil dari analisis menunjukkan bahwasannya amplitudo pada tiap variasi accelerometer akan bertambah seiring dengan bertambahnya variasi beban.  Kata kunci? ArduinoUno, acceelerometer, FFT AbstractSuccessfully build a prototype of measure vibration  on a bridge using accelerometer sensor MMA7361L and board arduino uno and APC 220 modul radio. Prototype on this research will be simulate some kind of vibration data from bridge presented by visual aid with burden who varied as his experiments. There will be three variation of burden vibration at this experiment. Sensor will detect the changes of vibration that existed at bridge moment traverse by the load which rolled on it. Sensor will transmit analog signals to the Arduino Uno. In inside Arduino, signal is analog will converted into digital. Such data sent to ground segment basis wireless using the Radio Frequency APC 220. Ground segment is used to monitor the vibration that detected by sensor. Microsoft Office Access 2007 is used to media store the database. Fast Fourier Transform (FFT) is used as a a tool for analyze the data. The data which analyzed is the data acceleration which stored on database. Data taken as many as a travel time the burden of roll off passing through prototypes were the bridge on each variation the load.Resultsofthe analysisshowedthat thevariation ofthe amplitudeof eachaccelerometerwillincrease alongwith the increase ofload variation.                                                                        Keywords?Arduino Uno, Accelerometer, FFT                                 
ADAPTASI VARIETAS UNGGUL DAN USAHATANI JAGUNG DI SELA TANAMAN KARET BELUM MENGHASILKAN DI PROVINSI SUMATERA SELATAN Suparwoto, Suparwoto; Juwita, Yuana; Hutapea, Yanter
SOCA: Jurnal Sosial Ekonomi Pertanian Vol.13, No.2, 2019
Publisher : Program Studi Agribisnis, Fakultas Pertanian, Universitas Udayana Jalan PB.Sudirman Denpasar, Bali, Indonesia. Telp: (0361) 223544 Email: soca@unud.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SOCA.2019.v13.i02.p02

Abstract

Pemerintah telah mencanangkan untuk berswasembada jagung. Provinsi Sumatera Selatan dengan kekayaan sumberdaya alamnya berpeluang untuk mewujudkan sumbangsihnya, melalui ketersediaan lahan pada tanaman karet belum menghasilkan yang dapat ditanami jagung. Kajian ini bertujuan mengetahui adaptasi varietas dan usahatani tanaman jagung di sela tanaman karet yang belum menghasilkan. Kegiatan ini dilaksanakan di lokasi perkebunan karet rakyat belum menghasilkan dengan umur 2 tahun di Kelurahan Betung Kecamatan Betung Kabupaten Banyuasin, Provinsi Sumatera Selatan. Kegiatan dimulai bulan April sampai September (MK) 2018. Pengkajian dilaksanakan dalam bentuk On Farm Research (OFR) di kebun karet yang belum menghasilkan umur 2 tahun yang berjarak tanam 5 x 3,5 m. Dimana jarak barisan tanaman karet 5 m dan jarak dalam barisan karet 3,5 m. Perlakuan 5 varietas jagung yaitu Bima-10, Bima-19, Pioner-21 dan Bisi-18 dan Sukmaraga. Luas petakan tiap perlakuan 4 gawang karet (20 m x 20 m). Jarak antar plot 1 gawangan karet (5 m) dan jarak ulangan 1 m. Setiap perlakuan diulang 4 kali. Rancangan yang digunakan rancangan acak kelompok (RAK). Hasil menunjukkan bahwa Varietas jagung Pioneer-21 mempunyai postur tinggi tanaman tertinggi yaitu 142,7 cm dan jumlah daun 9,9 helai sedangkan terrendah Bima 10 yaitu 137,9 cm dengan jumlah daun 9,4 helai. Produksi pipilan kering tertinggi tanaman jagung dihasilkan oleh BISI-18 sebesar 4,1 ton/ha tanaman karet, sedangkan produksi terendah 2,2 ton/ha tanaman karet dari jagung Bima-19. Varietas jagung BISI-18, Bima-10, Pioneer-21 dan Sukmaraga dapat beradaptasi pada tanaman karet umur di bawah 2 tahun setelah tanam dengan produksi berkisar 3,2-4,1 ton pipilan kering/ha tanaman karet dan usahatani dengan menggunakan keempat varietas ini layak dikembangkan dengan nilai R/C 2,46-3,03. Dengan pendapatan bersihnya Rp 9.520.000 - Rp 13.745.000/ha tanaman karet dapat menutupi biaya produksi yang dikeluarkan, sehingga mampu untuk memulai kembali usaha sejenis.
FLUKTUASI GENANGAN AIR LAHAN RAWA LEBAK DAN MANFAATNYA BAGI BIDANG PERTANIAN DI OGAN KOMERING ILIR Waluyo, Waluyo; Suparwoto, Suparwoto; Sudaryanto, Sudaryanto
Jurnal Hidrosfir Indonesia Vol 3, No 2 (2008)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Research on Lebak (fresh water) convered 100 hectars that has been conducted at Tanjung Alai, Ogan Komering Ilir district South Sumatera. This research consist of land characteristics, type and properties of Lebak, particularly zonification of Lebak type, length and hight of flooding which determined Lebak zone, fluctuation of flooding, crop scheduling of rice and soybean. Main problem of Lebak were hight flooding in the wet season and drought in the dry season on the long flooding condition it do not able to be planted cash crops. Result showed that research site can be divided into 3 type of Lebak; first, shallow Lebak has average hight flooding –97 cmto 55 cm, length flooding period 5 months and time schedule of planting since January up to May and June until Oktober; second, medium Lebak has average hight flooding – 50 cm to 100 cm, 9 months flooding period, and time schedule of planting since February up to June and Juli until November; third, deep Lebak has average hight flooding –32 cm up to 140 cm, 10 months flooding period and time schedule of planting since Januari up to June and Juli until November.
The STUDENTS’ MENTAL MODEL ABOUT NEWTON’S THIRD LAW IN INDONESIA Cahya Dinata, Pri Ariadi; Rahzianta, Rahzianta; Suparwoto, Suparwoto
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
Publisher : Unnes Science Education Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v7i2.23366

Abstract

The effective learning can be built by comprehend the students’ prior knowledge. However, it is rare for teacher to arrange learning based on students’ alternative concepts, particularly be related to force and motion concept. Based on those problems, this research is aims to describe student’s mental model about Newton’s Third Law. The methods is testing by four essay items about to action-reaction forces. Those items asked students to explain, predict, and evaluate the phenomenon which is related to Newton’s Third Law. The sample include 140 students from 3 provinces in Indonesia, that consist of D.I Yogyakarta, South Borneo, and West Borneo. The results showed that there is many students held diverge mental model about action-reaction forces. The divergences among others are: the greater the mass, the greater the force in collision phenomenon; the resting object can’t exert reaction force; the action-reaction forces can be cancelling each other. The suggestion to overcome those mental models is discussed. We hope these result can be applied by others teachers to construct better leaning about Newton’s Third Law.
Adaptasi Varietas Inpari dan Inpara di Rawa Lebak Dangkal dan Tengahan di Desa Berkat Kabupaten Ogan Komering Ilir, Sumatera Selatan Suparwoto, Suparwoto; Emma, Suri; Waluyo, Waluyo
Seminar Nasional Lahan Suboptimal 2018: Prosiding Seminar Nasional Lahan Suboptimal "Tantangan dan Solusi Pengembangan PAJALE dan Kel
Publisher : Seminar Nasional Lahan Suboptimal

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Abstract

Suparwoto et al, 2019. Adaptation of Inpari and Inpara Varieties in Shallow and Middle Swampy Lands  in the Berkat Village  Ogan Komering Ilir District, South Sumatra. pp. 13-20. Varieties are one of the most environmentally friendly, safe and low-cost technologies that farmers can reach in increasing national rice needs, in order to keep pace with the ever-increasing population growth. This activity is conducted in Berkat Village, Sirah Pulau Padang Subdistrict, Ogan Komering Ilir District (OKI), Sumatera Selatan, in dry season of 2016. The purpose was to obtain varieties that could adapted in shallow swampy lands and middle swampy lands with high production. Inpari 15, Inpari 22, Inpari 30 and Inpara 4 are labeled purple (SS class), urea fertilizer, SP-36, KCl, pesticide, herbicide and tarpaulin. In addition the required tools include: hand tractor, meter, scales, machetes, hoes, sprayer. The varieties studied were 4 varieties consisting of Inpari 15, Inpari 22, Inpari 30 and Inpara 4. The method used direct observation in the field, assessment area of 0.5 hectare, each typology 0.25 ha. Fertilizer dosage 150 kg Urea, 100 kg SP-36 and 100 kg KCl / ha. Nursery done 2-3 times moved to adjust the water level so the age of the seedlings reaches 45 days after spread. The variables observed were: plant height, number of productive tillers, panicle length, number of grains per panicle, the number of filled grain per panicle, and production. Observational data are tabulated and analyzed descriptively. The results showed  that the production of Inpari 15, Inpari 22, Inpari 30 and Inpari 4 grains in shallow swampy lands ranged from 3.4 to 3.8 tons gkp / ha, better than the production of middle swampy lands, ranging from 2.2 to 2.9 tons gkp / ha, because the swamp in the middle reaches dryness.
Inventarisasi Potensi Daya Saing Spasial Lahan Rawa Lebak untukPengembangan Pertanian di Sumatera Selatan Waluyo, Waluyo; Alkasuma, Alkasuma; Susilawati, Susilawati; Suparwoto, Suparwoto
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.1.1.2012.9

Abstract

Waluyo, Alkasuma, Susilawati, Suparwoto. 2012 Spatial Inventory of Potential Competitiveness Swamp Land for Agricultural Development in South Sumatra. J. Lahan Suboptimal 1(1):64-71. Swampy marsh land has great competitive advantage for farmland development.The purposes of this study were 1)to identify the spread of potential swampy marsh land for food crops in major production centers; 2)to understand thecontent, quantity,and distribution of minerals essential for health in the low lands of South Sumatra. Data were collected through some surveys using transects (toposequen), including delineation of maps, flooding/ground water, state of the microrelief, soilbase material, land use, and land surface condition. Ground observations were based on the Soil Survey Manual. The results indicated that Sungai Pinang and Rantau Panjang has three types of swampy land, namely shallow swampy marsh, mid marsh low lands, and swamps in the low lands. Swampy marsh as the potential competitiveness for its antioxidant mineral deposit (Fe, Mn, Cu, Zn, and Se) can produce good functional food products such as Padi seputih, Pelita Rampak, Ketan Sinde, Padi Petek. These varieties have considerably high antioxidant mineral. Therefore, the use of swampyland must be directed. Shallow and intermediate wetlands can be used for rice, pulses and vegetables whereas deep wetlands are suitable for fishing.