Oladokun Sulaiman Olanrewaju

Macro algae species and their potential application as raw material for biotech products

-1 AgNO3, and further increase in the concentration of AgNO 3 decreased the shoot production and shoot length. Additionally, we evaluated the effect of various concentrations (0, 10. 30, 50, 100, 200 mg L -1 ) of putrescine on shoot regeneration and shoot length. The highest number of shoots (7.4 ± 0.8) and longest shoots (2.2 ± 0.1 cm) were observed in cultures supplemented with 50 mg L -1 putrescine and further increase in concentration reduced the shoot regeneration and elongation. Our present study suggested that the addition of ethylene inhibitor AgNO 3 and polyamine putrescine could be applied in micropropagation and plant transformation protocols of P. tinctorium.

Water Quality Test and Site Selection for Suitable Species for Seaweed Farm in East Coast of Malaysia

Production of microbial aromatic compounds by solid-state fermentation is increasing lately, due to the ability of microbial to use agro-industrial wastes as their substrates. The aim of this research was to know potential of aromatic compounds production by solid-state fermentation of Trichoderma viridae in Pandanus tectorius fruits. To prepare the substrates, basal mesocarp part of fruits were cut, juiced, pulps were dried and grinded until reached fine particle size. Fermentations were carried out in 250 mL flasks with 108 fungal spores/mL, pH 6.0, 76,6 % (w/v) moistures at 30°C for 10 days. Aromatic compounds resulted from SSF were then analyzed using GC/MS. Results showed that Pandanus tectorius fruits contained total sugars 13,015%, proteins 3%, lipids 1,39% and moisture content were 76,6%. This low sugars content in substrates seemed to be the main factor of Trichoderma viridae slow growth. There were 17 peaks of aromatic compounds detected in GC/MS, consisted of alkenes hydrocarbons (tetradecane, tertracosane, tetracosahexaene, pentadecane, hexacosane, heptadecane, and octadecane), alcohol (phenol), amide (9-octacenamide) and monoterpene aldehid (9-octadecenal). Therefore the fermentation conditions need to be further optimized to make better growth for fungi and higher aromatic compounds production.

Industrial design and simulation of aquaculture mooring system for deployment in open sea for macro algae farming

H water soluble nanostructured Boron Nitride (BN) has been successfully synthesized by reduction of Boric Acid (H3BO3) in presence of ammonia. It is a relatively low temperature synthesis route. Nanoparticles were synthesized at 7000C. This method can be used for large scale production of nanostructured BN. The synthesized nanoparticles have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential thermal analyzer (DTA), Fourier Transformed Infrared Spectroscopy (FTIR). Particle size analyzer was used to find the approximate size of the particles. XRD analysis confirmed the formation of single phase nanostructured Boron Nitride. SEM analysis showed that the particles are spherical in shape. DTA analysis showed that the phase is stable upto 9000C. These particles are highly soluble in water although traditional BN is insoluble in water. Solubility of these particles makes it useful as anticancer drug carrier.T purpose of this presentation is to summarize 14 research studies involving an on-body ergonomic aid called the Personal Lift-Assist Device (PLAD). Three major questions asked were: 1) Is PLAD effective? 2) Is PLAD safe? 3) Is PLAD user-friendly? Data were collected using several different measurement tools: Liberty® electromagnetic sensors, Delsys® and Bortec® electromyography, Optotrak® position sensors, AEI Moxus® metabolic cart and subjective questionnaires. Measures of effectiveness revealed a 13.2-19.4% (p<0.05) reduction in back moments under the PLAD condition and 17-27% (p<0.05) in lumbar and thoracic EMG. During a fatiguing test, erector spinae EMG amplitudes were reduced by ~70% (p<0.001) over the No-PLAD condition. Measures of safety demonstrated that the PLAD altered the lifting technique so that lifts had less lumbar spine flexion and greater hip rotation (p<0.05). In addition, there was increased lumbar spine-hip coordination (p<0.05) and greater dynamic stability (p<0.05). In terms of user-acceptability, 83% of workers stated that they believed PLAD was effective and 67% said they would wear it for specific jobs. When energy consumption demands were evaluated, there was no significant difference between the PLAD and No-PLAD conditions indicating that the same amount of work was being done by specific leg muscles rather than the back. In conclusion, the PLAD is effective at reducing numerous risk factors and safety-related factors that are predispose workers to low back pain. It is also inexpensive, durable and suitable to many manual handling tasks including specific tasks in farming, construction, warehouse distribution, and assembly work.W turbine system reliability is a critical factor in the success of a wind energy project. Consequently, maintenance is a crucial issue for such projects. In this paper, an integrated production and periodic maintenance policy with minimal repair at failures is proposed for a hybrid power generation system. We seek to establish an optimal integrated electricity production and maintenance plan over a finite planning horizon. It is important to do so according to the wind speed profile in order to guarantee that a random power demand (consumption) is satisfied given a target service level. In the context of energy planning, many researchers presented several techniques and methods which provide solutions to the multi-objective optimization problem for energy planning decisions. They have observed that Analytical Hierarchy Process (AHP) is the most popular technique followed by outranking techniques Promethee and Electre. Regarding renewable power generation systems reliability, some researchers studied the factors that contribute to the reliability deterioration of such systems; they concluded that in a significant part of the year, seasonal and spatial variability of wind, and to a lesser extent that of solar energy can yield low availability leading to an increase in unserved energy. Based on these literature reviews, we propose in this talk an integrated production-maintenance policy for wind turbine power generation. In fact, our approach consists in determining the best combination of energy production and maintenance effort, which minimizes the total cost while satisfying a random demand during a finite horizon with a given service level. This study is inspired from the background work, which models the influence of the production rate on the degradation level of the production system, and consequently on the maintenance strategy. A numerical example illustrates the use of the developed mathematical model.P cell is a dye sensitized photo-electrochemical cell chargeable in light for solar power generation and storage. A photogalvanic cell consists of H-shaped glass tube containing two electrodes dipped in solution of dye, reductant, NaOH and surfactant (if used). Rabinowitch suggested that the photogalvanic effect might be used to convert sunlight into electricity. To explore this suggestion, some photogalvanic cells using the iron-thionine system as the photosensitive fluid were tested. The observed electrical parameters (like power, etc.) were very low. Despite it, these cells have been considered energy source for the future if their electrical performance is increased. Because of this, lot of work has been done by using various dyes, reductants, and surfactants. I have also done lot of work by using various dye photosensitizers (like Brilliant Cresyl Blue, Rhodamine B, Fast Green FCF, etc.) with Fructose reductant and NaOH alkaline medium. Radically high cell performancepotential 1.07 V, short-circuit current density 12.15 mAcm-2, power 3.05 mWcm-2, efficiency 7.58% and storage capacity 3.6 hour was observed. It is viewed that the photogalvanic cells, with additional advantage of low cost, chargeable/rechargeable in diffused light and storage capacity, can give electrical output comparable to that for commercially used power storage property lacking photovoltaic cells. But to realize this aim, further enhancement in electrical out put of these cells is needed. The option of use of diversity of chemicals like dye, reductant and surfactant has already been exhausted. Therefore, the design and use of alternative/new electrodes may be tried.