Beihang University Research Center for Nuclear Science and Technology (RCNST)

2012 ◽  
Vol 22 (2) ◽  
pp. 21-24
Author(s):  
Isao Tanihata
Jurnal Solum ◽  
2012 ◽  
Vol 9 (2) ◽  
pp. 77
Author(s):  
Asmar Asmar ◽  
Oktanis Emalinda ◽  
Dicky Hadi Vendra

A field research about cultivating tithonia (Tithonia divesifolia) was aimed to determine the best row design and trimming period to produce high biomass and nutrient content of tithonia in Ultisol. The research was conducted in Andalas University Experiment Station and Laboratory of Research Center for Utilization of Nuclear Science and Technology (P3IN) Universitas Andalas Limau Manis Padang. The research consisted of 2 factors, row design for tithonia cultivation at farming site (R) (R1=alley fence, 1 m width times 5 m distance; R2 = 1 m width as a fence for farming site 10 m x 10 m area) as the main plot and trim period (U) (U1=trimming every 2 month, U2=trimming every 4 months), at 3 blocks The results showed that both row designs gave the same performance in terms of producing biomass and plant nutrients (N,P,K,Ca,Mg). The best trimming period was found under U1. Tithonia cultivation as R1 combined with trimming period (U1) yielded approximately 2.2 ton dry matter/ha, 62.82 kg N/ha; 17.67 kg P/ha; 81.06 kg K/ha 13.35 kg Ca/ha and 5.47kg Mg/ha. Both row designs with trimming period every 2 months could be recommended to cultivate tithonia in Ultisol.Key Words: Tithonia diversifolia cultivation, trim period, Ultisol


2021 ◽  
Vol 23 (1) ◽  
pp. 9
Author(s):  
Santiko Tri Sulaksono ◽  
Sudjatmi Kustituantini Alfa ◽  
Dani Gustaman Syarif

Crtical heat flux (CHF) is an important characteristic of nanofluids. The CHF measurements were carried out in nanofluid research at the Center for Applied Nuclear Science and Technology. These measurements are done manually using a variable power supply and a multimeter. However, it was difficult to record the voltage and current due to the sudden break of the wire. In this study, Arduino was used to measure CHF automatically. The voltage is applied to the wire and increases automatically along with the measurement of the voltage and current in the wire. The results of the voltage and current measurements were compared with a multimeter and were not significantly different. It can be concluded that the CHF measurement system using arduino can be used to measure nanofluid CHF.


2016 ◽  
Vol 8 (5) ◽  
pp. 942-957 ◽  
Author(s):  
Suresh K. Aggarwal

The advances which have taken place during the last four decades in the instrumentation and applications of thermal ionisation mass spectrometry (TIMS) particularly of relevance to nuclear science and technology are highlighted.


Author(s):  
P.N. Nikolaev ◽  
◽  
O.A. Yusova

The article presents the results of many decades of research on the creation of varieties that meet modern trends in the development of science and technology. The cyclical nature of the selection process ensures the continuity of the transfer of varieties to the GSI and their introduction into agricultural enterprises.


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