Maintenance requirements in Bacillus sphaericus 1593M under dual substrate limitations estimated at zero growth rate in a total cell retention culture

1998 ◽  
Vol 19 (4) ◽  
pp. 243-245
Author(s):  
R. Sachidanandham ◽  
G. Kalaiselvi
1997 ◽  
Vol 47 (5) ◽  
pp. 554-559 ◽  
Author(s):  
S. Meenakshisundaram ◽  
G. Suresh ◽  
R. K. Fernando ◽  
K. Jenny ◽  
R. Sachidanandham ◽  
...  

1995 ◽  
Vol 11 (5) ◽  
pp. 584-588 ◽  
Author(s):  
Gautam G. Banik ◽  
Carole A. Heath
Keyword(s):  

2008 ◽  
Vol 286 (8-9) ◽  
pp. 983-991 ◽  
Author(s):  
A. Sorrentino ◽  
R. Pantani ◽  
G. Titomanlio
Keyword(s):  

1996 ◽  
Vol 13 (5) ◽  
pp. 453-456 ◽  
Author(s):  
Woo Gi Lee ◽  
Jin Suk Lee ◽  
Byung Geon Park ◽  
Mi Sun Kim ◽  
Soon Chul Park ◽  
...  

Author(s):  
Nithin B. R. ◽  
Prakash Bhuyar ◽  
Marlen Trejo ◽  
Mohd Hasbi Ab. Rahim ◽  
Gaanty Pragas Maniam ◽  
...  

Nowadays, the water pollution is leading issue due to palm oil mill effluent (POME), waste from palm oil production is a big problem to Malaysia which is largest palm oil producers. POME containing large amount of chemical oxygen demand (COD) which can cause severe pollution to the environment especially water. This present study designed for culturing green algae (Chlorella sp.) isolated from Pantai Balok, Kuantan which is most common microalgae with palm oil mill effluent (POME). Chlorella sp. was cultured using BG-11 medium with the addition of POME as experiment and without POME as control. The POME responsible for the growth of green algae is studied by measurement of the growth rate, total cell count and chemical oxygen demand (COD) for both conditions. The composition for control and experiment is also measured and determined by using Gas Chromatography Mass Spectrometry (GCMS). From the results, it is observed that the total cell count and growth rate of Chlorella sp. greater in presence of POME since the green microalgae absorbs the essential nutrients from the POME as their nutrients. GCMS revealed that the difference in composition for both the conditions. Results concluded that several COD also vigorously deplete with the help of green algae digestion. Cultivation of Chlorella sp. in POME will help in future water pollution treatment.


2012 ◽  
Vol 715-716 ◽  
pp. 574-578 ◽  
Author(s):  
Luis A. Barrales Mora

t has been shown by computer simulations that the MacPherson-Srolovitz relation predicts accurately the growth rate of a grain undergoing ideal grain growth. However, since a finite mobility of the boundary junctions (triple lines and quadruple junctions) affects the evolution of a granular system, it is necessary to modify this equation in order to take into account their effect. In the present contribution, an equation which allows considering these factors is presented and used to modify the von Neumann-Mullins and MacPherson-Srolovitz equations. In order to corroborate these equations two and three dimensional network model simulations were performed. The results showed a very good agreement with the theoretical approaches for both dimensions and all topological classes except those near the classes of zero growth rate in 3D. The reason is that the proposed function is very sensitive to small changes of the finite mobility of the junctions.


1991 ◽  
Vol 46 (2) ◽  
pp. 231-236 ◽  
Author(s):  
J. A. Heikkinen ◽  
T. J. H. Pättikangas ◽  
G. Devillers

Starting from a three-wave interaction coefficient for a homogeneous Vlasov plasma, we show that the parametric decay to half-harmonics has zero growth rate if the wavenumber of the pump wave vanishes. Earlier proofs of this fact for electrostatic decay modes are thus extended for a general case. As a specific example, we study the decay of a fast magnetosonic wave to two slow waves.


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