Karakter Spasial Bangunan Kolonial Rumah Dinas Bakorwil Kota Madiun

Eksistensi bangunan kolonial Belanda semakin mengalami kemunduran di Indonesia khususnya kota-kota kecil karena kurangnya kepedulian akan bangunan bersejarah. Bangunan rumah dinas Bakorwil adalah salah satu bangunan kolonial Belanda yang masih bertahan di Kota Madiun namun telah mengalami Perubahan yang telah menyesuaikan kebutuhan dari pengguna bangunan. Tujuan penelitian mengkaji pola ruang dari rumah dinas Bakorwil untuk mengetahui karakter spasial dari bangunan tersebut. Metode penelitian yang digunakan adalah analisis deskriptif yaitu metode dengan cara menganalisis dan mendeskripsikan pola ruang dari bangunan yang kemudian dapat disimpulkan karakter spasial bangunan. Pada awalnya ruang dalam bangunan rumah dinas Bakorwil menggambarkan langgam Indische Empire Style, hal tersebut terlihat dari denah bangunan yang simetris seimbang antara sisi utara dan selatan bangunan. Terdapat pusat ruang atau Centre Room yang menjadi orientasi ruang dan sirkulasi bangunan. Selain itu serambi bangunan yang mengelilingi sisi utara hingga selatan bangunan dan teras depan bangunan yang terhubung dengan teras belakang bangunan melalui ruang tengah bangunan

Pemacuan Pertumbuhan Melon (Cucumis Melo L.) dengan Cendawan Mikoriza Arbuskula dan Bakteri Azospirillum SP.

Melon (Cucumis melo L.) is a high economic value horticultural crop that is cultivated in some regions of Indonesia under fertilization management. Application of inorganic fertilizer continuously can reduce soil microbial abundance. One of the soil microbial that promote plant growth is arbuscular mycorrhizal fungi (AMF) and Azospirillum sp. The aim of this study was to analysed the effect of AMF and Azospirillum sp. in promoting growth and production of melon. The experiment was carried out in a greenhouse and was arranged in a completely randomized design with five replicates. Five treatments tested were: control, fertilized with NPK, inoculated with AMF, inoculated with Azospirillum sp., inoculated with AMF + Azospirillum sp. The results showed that the effect of AMF on root growth and shoot growth were similar to NPK fertilizer. Azospirillum sp. increased root growth. On the other side, the effect of Azospirillum sp. on shoot growth was similar to NPK fertilizer. However, AMF and Azospirillum sp. inoculation solely increased plant height, fruit weight, fruit diameter, flavor and length of fruit storage. Meanwhile, combination of AMF and Azospirillum sp. increased plant height, root growth, shoot growth, fruit weight, fruit diameter, flavor and length of fruit storage. This study revealed that application of AMF and Azospirillum sp. in melon cultivation was more effective and efficient than NPK fertilizer

MODEL RANTAI NILAI INDUSTRI KARNAVAL BANYUWANGI MENUJU KEUNGGULAN KOMPARATIF

This research focuses on carnival performing arts as the sub-sector of performing arts. Banyuwangi, as one of the regencies in East Java Province, must evaluate its creative industry potential through the value chain to maintain business continuity. The pandemic has decreased the performance of all business sectors, including the creative industry in the performing arts (carnival) sub-sector. The main concern of business recovery should be related to the sustainability of the carnival performing arts sub-sector in the Banyuwangi region. This qualitative research aims to describe and explore the application of value chains and culture in the creative industry in the carnival performing arts sub-sector in Banyuwangi. The study results showed that the Value Chain Sustainability event model in Banyuwangi has five value chains, meaning that the carnival has five values in line with its basic concept. The chain of production, dissemination, exhibition, and consumption are the elements of the potential chain that can be used as a source of comparative advantage to maintain the continuity of the Banyuwangi carnival event

Pertumbuhan Tanaman Jarak Pagar (Jatropha Curcas L.) Pada Lahan Pasca Tambang Timah Di Bangka Yang Diberi Pupuk Organik

PERTUMBUHAN TANAMAN JARAK PAGAR (Jatropha curcas L.) PADA LAHAN PASCA TAMBANG TIMAH DI BANGKA YANG DIBERI PUPUK ORGANIK Sukmarayu P. Gedoan1), Alex Hartana2), Hamim2), Utut Widyastuti2) dan Nampiah Sukarno2) 1)Program Studi Biologi, FMIPA Universitas Negeri Manado di Tondano; 2)Departemen Biologi, FMIPA, Institut Pertanian Bogor, Bogor 16680 ABSTRAK Kegiatan penambangan timah menyebabkan Perubahan karakteristik fisika dan kimia tanah sehingga menjadi tidak sesuai untuk pertumbuhan tanaman. Tujuan penelitian ini untuk mempelajari pertumbuhan 7 aksesi jarak pagar yang ditanam pada lahan pasca tambang timah yang diberi kompos dan kotoran sapi. Penelitian ini dilakukan di TSS 133, Kelurahan Sinar Baru, Kabupaten Bangka, Provinsi Bangka Belitung. Penelitian lapangan dilaksanakan pada Bulan Mei 2007 sampai dengan Bulan Desember 2008. Percobaan faktorial ini dirancang dalam Rancangan Petak Terbagi dengan tiga ulangan. Petak utama adalah 7 aksesi jarak pagar yang terdiri atas: aksesi Madiun, Ponorogo, Jember, Dompu, Lampung, Bengkulu, dan Sukabumi, sedangkan anak petak berupa tanah tanpa pemberian kompos dan pupuk kandang (kontrol), kompos trubus 4 kg/lubang ditambah 4 kg tanah bagian atas dan kotoran sapi 4 kg/lubang ditambah 4 kg tanah bagian atas. Hasil penelitian menunjukkan bahwa pertumbuhan awal yang paling baik untuk tanah bekas tambang timah adalah pada aksesi Jember yang ditunjukkan oleh diameter batang, berat kering tanaman, berat kering tajuk dan berat kering akar. Sedangkan tinggi tanaman tertinggi diamati pada aksesi Madiun. Penambahan kotoran sapi dapat meningkatkan produksi biji dan kandungan minyak. Produksi biji tertinggi diperoleh pada aksesi Bengkulu dan kandungan minyak tertinggi diperoleh pada aksesi Dompu. Kata kunci: aksesi, Jatropha curcas, kompos, kotoran sapi THE GROWTH OF CASTOR OIL PLANT (Jatropha curcas L.) ON THE POST-TIN-MINING LAND IN BANGKA PROVIDED WITH ORGANIC FERTILIZER ABSTRACT The activity of tin mining changes the physical and chemical characteritics of soil, so that the soil isnot suitable for plant growth. The objective of this research was to evaluate the growth of some accession of Jatropha curcas that we planted on post-tin-mining land provided with compost and cow feces. This research was conducted in TS 133, Sinar Baru Village, District of Bangka, Province of Bangka Belitung. This field research was carried out in May 2007 to December 2008. Factorial experiment was designed as split plot with three replications. The main plot was 7 accessions, i.e. Madiun, Ponorogo, Jember, Dompu, Lampung, Bengkulu, and Sukabumi. The subplot waskonds of organic fertilizer, i.e. top soil without addition of compost and cow fecer (control), trubus compost (4 kg/hole) added with top soil (4 kg/hole), and cow feces (4 kg/hole) added with topbsoil (4 kg/hole). The result showed that Jember accession had the best early growth based on the observation of stem diameter, plant dry weight, and root dry weight. The largest plant height was observed in Madiun accession. The higest seed production was observed in Bengkulu accession and Dompu accession had the higest oil content

Leak Detection Modeling and Simulation for Oil Pipeline with Artificial Intelligence Method

Leak detection is always interesting research topic, where leak location and leak rate are two pipeline leaking parameters that should be determined accurately to overcome pipe leaking problems. In this research those two parameters are investigated by developing transmission pipeline model and the leak detection model which is developed using Artificial Neural Network. The mathematical approach needs actual leak data to train the leak detection model, however such data could not be obtained from oil fields. Therefore, for training purposes hypothetical data are developed using the transmission pipeline model, by applying various physical configuration of pipeline and applying oil properties correlations to estimate the value of oil density and viscosity. The various leak locations and leak rates are also represented in this model. The prediction of those two leak parameters will be completed until the total error is less than certain value of tolerance, or until iterations level is reached. To recognize the pattern, forward procedure is conducted. The application of this approach produces conclusion that for certain pipeline network configuration, the higher number of iterations will produce accurate result. The number of iterations depend on the leakage rate, the smaller leakage rate, the higher number of iterations are required. The accuracy of this approach is clearly determined by the quality of training data. Therefore, in the preparation of training data the results of pressure drop calculations should be validated by the real measurement of pressure drop along the pipeline. For the accuracy purposes, there are possibility to change the pressure drop and fluid properties correlations, to get the better results. The results of this research are expected to give real contribution for giving an early detection of oil-spill in oil fields

Multi-stage heat-pipe heat exchanger for improving energy efficiency of the HVAC system in a hospital operating room 1

Abstract The demands of specific requirements related to thermal comforts, such as temperature, relative humidity, inside air exchange and other factors required in a hospital operating rooms, have necessitated the development of energy-efficient heating, ventilation and air conditioning (HVAC) systems and efficient heat-recovery system using a heat-pipe heat exchanger (HPHE). The experiment was conducted by using HPHEs having three, six and nine rows, with four heat pipes in each row, arranged in a staggered configuration with a variation of fresh-air inlet temperature and velocity. The theoretical analysis was conducted using the ε-NTU method for predicting the effectiveness, outlet temperature of the evaporator side and energy recovery of the HPHE. The experimental results indicated that increasing the air-inlet temperature in the evaporator section and the number of rows increased the HPHE effectiveness but increasing the air-inlet velocity reduced the effectiveness. The highest effectiveness of 62.6% was obtained at an air-inlet temperature of 45°C with an air-inlet velocity of 2 m/s and a 9-row HPHE. The energy recovery of the HPHE increased with the number of rows, air-inlet temperature and air velocity in the evaporator section. The ε-NTU method can be used as a comparison method in the analysis of heat-recovery systems that apply HPHE air conditioning systems. Heat pipes that utilize cold-air exhaust from a room in an HVAC system can enhance efficiency and reduce emissions.</jats:p

Scientists publishing research in English from Indonesia: Analysing outcomes of a training intervention to inform institutional action

Margaret Cargill, Patrick O, Connor, Rika Raffiudin, Nampiah Sukarno, Berry Juliandi and Iman Rusman

Sensitivity of jarrah (Eucalyptus marginata) to phosphate, phosphite, and arsenate pulses as influenced by fungal symbiotic associations

Many plant species adapted to P-impoverished soils, including jarrah (Eucalyptus marginata), develop toxicity symptoms when exposed to high doses of phosphate (Pi) and its analogs such as phosphite (Phi) and arsenate (AsV). The present study was undertaken to investigate the effects of fungal symbionts Scutellospora calospora, Scleroderma sp., and Austroboletus occidentalis on the response of jarrah to highly toxic pulses (1.5 mmol kg−1 soil) of Pi, Phi, and AsV. S. calospora formed an arbuscular mycorrhizal (AM) symbiosis while both Scleroderma sp. and A. occidentalis established a non-colonizing symbiosis with jarrah plants. All these interactions significantly improved jarrah growth and Pi uptake under P-limiting conditions. The AM fungal colonization naturally declines in AM-eucalypt symbioses after 2–3 months; however, in the present study, the high Pi pulse inhibited the decline of AM fungal colonization in jarrah. Four weeks after exposure to the Pi pulse, plants inoculated with S. calospora had significantly lower toxicity symptoms compared to non-mycorrhizal (NM) plants, and all fungal treatments induced tolerance against Phi toxicity in jarrah. However, no tolerance was observed for AsV-treated plants even though all inoculated plants had significantly lower shoot As concentrations than the NM plants. The transcript profile of five jarrah high-affinity phosphate transporter (PHT1 family) genes in roots was not altered in response to any of the fungal species tested. Interestingly, plants exposed to high Pi supplies for 1 day did not have reduced transcript levels for any of the five PHT1 genes in roots, and transcript abundance of four PHT1 genes actually increased. It is therefore suggested that jarrah, and perhaps other P-sensitive perennial species, respond positively to Pi available in the soil solution through increasing rather than decreasing the expression of selected PHT1 genes. Furthermore, Scleroderma sp. can be considered as a fungus with dual functional capacity capable of forming both ectomycorrhizal and non-colonizing associations, where both pathways are always accompanied by evident growth and nutritional benefits

Dasar-dasar pendidikan sains

vii,154 hlm.;21 c