Karakteristik Batu Penyusun Candi Borobudur

Haldoko, Leliek Agung; Muhammad, Rony; Purwoko, Al Widyo

doi:10.33374/jurnalkonservasicagarbudaya.v8i1.123

Cited by 6 publications

(8 citation statements)

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“…Abdulla et al (2008) found 56 species of actinomycetes belonging to 15 genera from decayed stone. Haldoko et al (2014) reported that the different characteristic of Borobudur temple stone causing differences in the level of damage and decay occurs.…”

Section: Isolation Of Actinomycetes Associated With Moss On the Surfa...mentioning

confidence: 99%

“…Chemical compounds contained in the decayed rock of Borobudur Tempel and many people visited this Temple may influences the genus/species of actinomycetes were founded. Haldoko et al (2014) reported that the stone material of Borobudur Temple containing silicate (SiO 2 ), aluminium (Al 2 O 3) , iron Fe 2 O 3 , (FeO), calcium(CaO), magnesium (MgO), sodium (Na 2 O), and potassium (K 2 O). The stone overgrown with moss has higher potassium content, while SiO2 content of stone overgrown with moss is lower than a stone that is not overgrown with moss (Haldoko et al, 2014).…”

Section: Identification Of Actinomycetes Based On 16 S Rrna Gene Sequ...mentioning

confidence: 99%

“…Borobudur Temple is one of the Buddhist monuments located in Magelang Regency in the central part of Java, Indonesia (Hermawan, et al,, 2016). Borobudur Temple was composed using andesite materials (Haldoko et al, 2014). The andesite stones of Borobudur Temple have different characteristics (hardness, porosity, and alkalinity) that affect its susceptibility to biodeterioration (Haldoko et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Borobudur Temple was composed using andesite materials (Haldoko et al, 2014). The andesite stones of Borobudur Temple have different characteristics (hardness, porosity, and alkalinity) that affect its susceptibility to biodeterioration (Haldoko et al, 2014). Degradation of the ancient stone may be caused by the growth and the activity of living organisms such as bacteria (including actinomycetes), fungi, archaea, algae, mosses, and lichens (Purawijaya & Priyantika, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Isolation and Identification of Actinomycetes Associated with Moss on the Surface of the Borobudur Temple Stone

et al. 2020

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Mosses growing on the surface of the Borobudur Temple will affect the aesthetic value of the temple. Interaction between moss and actinomycetes may trigger the growth of moss that can cause an increase in biodeterioration of stone. The purpose of this study was to isolate and identify the actinomycetes associated with moss on the surface of decayed stone of Borobudur Temple as well to assess their ability for phosphate solubilizing. Actinomycetes were isolated using serial dilution method and were identified based on 16S rRNA gene sequences. A total of 37 actinomycetes were isolated from three sampling sites. The isolates found belong to five genera (Gordonia, Microbacterium, Micromonospora, Nocardia, and Streptomyces) and distributed among four families (Microbacteriaceae, Micromonosporaceae, Nocardiaceae, and Streptomycetaceae). Isolates of actinomycetes composed of 19 Streptomyces Group and 18 Rare Actinomycetes Group. Nineteen isolates (51.35%) were identified as genus Streptomyces. Seventeen isolates (45.94%) showed abilities to release soluble phosphate and most of the isolates belong to the genus Streptomyces. The isolates have been collected will be deposited to Indonesian Culture Collection (InaCC) to enrich the collection of actinomycetes from ancient stone in Indonesia and will be used as a source of reference material research, taxonomic, or as source for further study.

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Section: Isolation Of Actinomycetes Associated With Moss On the Surfa...mentioning

confidence: 99%

Section: Identification Of Actinomycetes Based On 16 S Rrna Gene Sequ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Isolation and Identification of Actinomycetes Associated with Moss on the Surface of the Borobudur Temple Stone

et al. 2020

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“…Hal ini disebabkan, andesit berwarna abu-abu kehitaman. Warna gelap ini terdapat kandungan ferromagnesium, sehingga memiliki kemampuan menyerap dan menyimpan kalor (Haldoko, et al, 2014). Dalam penelitian Riyadi, et al (2016), batu andesit dimanfaatkan sebagai media penghantar kalor yang digunakan sebagai pembangkit listrik sederhana berbasis thermoelectric cooler.…”

Section: Pendahuluanunclassified

Pengaruh Ketebalan Batu Andesit Terhadap Keluaran Termoelektrik

Nugraha

Subekti

Rahardjo

2020

JEVET

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Abstract. This research aimed to create and utilize video-based learning media on motor control course and also to determine whether the video-based learning media on motor control course is effective or not. The making of the video-based learning media using several stages, namely, literature study, analysis needs, product planning, product making, instrument making feasibility and feasibility studies that are conducted by the experts, media specialists and students in order to determine the feasibility of the media created. Furthermore, to test the effectiveness of video-based learning media on motor control course, students are given the post- test questions that the validity and reliability have previously been tested by using an experimental model. The results of the feasibility test got a score > 80%, subject experts got a score of 94.23%, media experts 91,66%, and students 86.13%. The results of the feasibility test obtained, video-based learning media on motor control course is said to be very good and fit for use as a media of learning. The average value of students post test using a video-based learning media is 83, while students who do not use a video-based learning media have an average of 80.56. These data showed that value of post test results of motor control course that uses video-based learning media is higher than value of post test results that does not use a video-based learning media. The difference in post test results show that a video-based learning media on motor control course is an effective media of learning. Abstrak Tujuan penelitian ini adalah untuk mengetahui pengaruh ketebalan batu andesit terhadap keluaran termoelektrik. Penelitian ini menggunakan metode penelitian eksperimen dengan pendekatan kuantitatif. Subjek penelitian ini ialah ketebalan batu andesit. Ketebalan batu andesit yang digunakan yaitu ketebalan 1 cm, 2 cm, dan 3 cm. Penelitian ini dilakukan pengujian laju kalor konduksi dan keluaran termoelektrik berdasarkan ketebalan batu andesit. Teknik analisis data yang digunakan yaitu analisis deskriptif dengan teknik pengumpulan data yaitu observasi laboratorium dan observasi lapangan. Hasil penelitian ini menunjukkan bahwa batu andesit ketebalan 1 cm menghasilkan laju kalor konduksi tertinggi dibandingkan ketebalan 2 cm dan 3 cm. Begitu juga dengan keluaran yang dihasilkan termoelektrik. Batu andesit ketebalan batu 1 cm menghasilkan keluaran paling besar dibandingkan ketebalan batu 2 cm dan 3 cm. Tegangan keluaran V0 (tanpa beban) dan V1 (dengan hambatan 100 ohm) yang dihasilkan termoelektrik pada ketebalan batu 1 cm berturut- turut sebesar 1.40 V dan 1.08 V, ketebalan batu 2 cm sebesar 1.37 V dan 0.98 V, dan ketebalan batu 3 cm sebesar 1.22 V dan 0.94 V. Berdasarkan hasil data pengujian tersebut dapat disimpulkan bahwa ada pengaruh ketebalan batu andesit terhadap keluaran termoelektrik.

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