OPTIMASI USAHA PERIKANAN MINI PURSE SEINE DI KABUPATEN JENEPONTO PROVINSI SULAWESI SELATAN (Optimization of Mini Purse Seine Fishery in Jeneponto District, South Sulawesi Province)

The small pelagic in Jeneponto is highly potential, but since 2001-2004 years there are degradation indication of haul activity wich marked by degradation of mini purse seine number. The objectives of the research are: 1) to estimate the level of MEY exploiting of small pelagis becoming target of mini purse seine, and 2) to determine production factors which is playing a part in improvement of productivity of mini purse seine. The production surplus method, Gordon Schaefer model and multiple regression analysis were used in this study. The result from bio-economic analysis showed that at actual condition have come near optimum level for exploiting of small pelagic. The optimum catch of small pelagic is 3.783.376,09 kilo grams per year with standard effort of 8.723 trip per year. Specially far mini purse seine, optimum effort is 47% from standard effort or equivalent by 26 unit of gears. Production factors that give signifiront effect to fish production of mini purse seine are machine strength, mini purse seine length and number of lamp.Keywords: optomization, mini purse seine, bio-economi

Structural and Biological Behaviour of Co(II), Cu(II) and Ni(II) Metal Complexes of Some Amino Acid Derived Schiff-Bases

Biologically active tridentate amino acid (Alanine, Glycine & Tyrosine) derived Schiff-bases and their Co(II), Cu(II) & Ni(II) complexes have been synthesised and characterised on the basis of their conductance and magnetic measurements, elemental analysis and 13C-NMR, 1H-NMR, IR and electronic spectral data. These Schiff-bases and their complexes have been evaluated for their antibacterial activity against bacterial species such as Staphylococcus aureus, Escherichia coli, Klebsiella pneumonae, Proteus vulgarus and Pseudomonas aeruginosa and this activity data show the metal complexes to be more antibacterial than the Schiff-bases against one or more bacterial species

Emulating opportunistic networks with KauNet Triggers

In opportunistic networks the availability of an end-to-end path is no longer required. Instead opportunistic networks may take advantage of temporary connectivity opportunities. Opportunistic networks present a demanding environment for network emulation as the traditional emulation setup, where application/transport endpoints only send and receive packets from the network following a black box approach, is no longer applicable. Opportunistic networking protocols and applications additionally need to react to the dynamics of the underlying network beyond what is conveyed through the exchange of packets. In order to support IP-level emulation evaluations of applications and protocols that react to lower layer events, we have proposed the use of emulation triggers. Emulation triggers can emulate arbitrary cross-layer feedback and can be synchronized with other emulation effects. After introducing the design and implementation of triggers in the KauNet emulator, we describe the integration of triggers with the DTN2 reference implementation and illustrate how the functionality can be used to emulate a classical DTN data-mule scenario

System Identification and Seismic Performance Evaluation of Earth Dams

A system identification technique is developed to provide dynamic properties of earth dams from their seismic records. The technique is utilized to assess the capabilities and limitation of analytical models in terms of dynamic nonlinear constitutive relationships as well as damping. The technique is based on the least square method using Gaussian hypothesis. Earth dams are modeled as a three-dimensional nonhomogeneous visco-elasto-plastic soil structure. The forward problem is solved using a Galerkin-Ritz formulation in which the solution is expanded using basis function, which is selected to be the eigenmodes. The spatial variation of the excitation is considered by using global shape functions defined on the boundary domain to interpolate the input motion on the dam boundaries using recorded motion at discrete locations. The constitutive model is used to accommodate the nonlinear path dependent behavior of the dam material as well as coupling between different constituent of the soil mixture. The model is implemented using Druker-Prager multi-yield surface model and linear Kelvin-Voigt model. Application to instrumented dams, in recent earthquake, showed significant match between the recorded response and the optimal estimated response

Effect of Different Levels of Protein Supplementation on Reproductive Performance of Rabbit Does Under Tropical Conditions

The study was conducted over a 125 days period with 150 does which were randomly assigned to three treatment groups of 50 does each. The does were fed one of the diets containing 13.17, 16.64 and 21.00% crude protein (CP) supplementation with ad libitum green grass (Hymenachne pseudointerrupta, CP=6.6%). Gestation period, litter size & litter weight ( at birth & weaning), individual pup weight at birth and weight gain up to weaning (28 d) did not differ (P>0.05) among the treatment groups. The pregnancy rate of does and mortality of pups up to weaning were significantly affected (P<0.05) among the treatment groups. The mean of the pregnancy rate was highest (100 %) in the group fed on 21.00% CP diet, while the number of pups alive up to weaning was highest (100 %) in the group fed on 13.17% CP diet. Based on these findings, the inclusion of 21.00% CP diet along with ad libitium green grass may be suggested for better reproductive performance of does under tropical conditions