<span style="font-size:15.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-IN;mso-fareast-language:EN-IN;mso-bidi-language:AR-SA">Gonadal maturation profile and fecundity of the <i>Johnieops sina</i><span style="mso-bidi-font-style:italic"> (Cuvier, 1830) from Ratnagiri coast of India</span></span>

1746-1756<span style="font-size:9.0pt;line-height:115%; font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-in;mso-fareast-language:="" en-in;mso-bidi-language:ar-sa"="">Sin Croacker, <i style="mso-bidi-font-style: normal">Johnieops sina (Cuvier, 1830) is one of the commercially important and common demersal fish in the coastal waters of Ratnagiri along southern Maharashtra, India. In the context of local demand and economic importance, the gonadal maturation profile and fecundity of J. sina has been studied.  Spent, mature and maturing females were recorded in almost all months of the year suggesting the multiple and prolonged breeding behaviour. Result also indicated marginal dominance of males over females except September (1:0.49), where significant predominance of male was observed at 5% level of significant.  Absolute fecundity ranged from 24,800 to 126,880 eggs (average: 83,313) from the ovary weighing between 1.28 to 5.2 g. Monthly changes in the Gonado-somatic and Hepato-somatic Index (GSI & HSI) also revealed it’s prolong spawning with two peaks; the first peak in September-November and the second in February-April, which indicates J. sina spawn twice in a year.  Females of the species were found to attain sexual maturity at a minimum size of 131 mm total length. </span

Investigation on Effect of Oxygenated Additive on Multicylinder Diesel Engine Performance and Emission

ABSTRACT-This paper present the experimental investigation on effect of oxygenated additives on multi-cylinder Diesel engine performance and emission. The experimental trail was carried out at constant speed of 1500rpm with variable load conditions and 10% of oxygenated additive in diesel fuel. Six different additives were selected for investigation. After the experimentation, it&apos;s found that DIGILYME shows least brake specific fuel consumption of all other additives but around 10 -20% higher than that of diesel for the same load variation. All additive shows rise in EGT except DMC which is quite close to that of diesel. Brake thermal efficiency of DMC is high at idle to moderate load after that it drop than that of diesel due to low calorific value. It shows around15% rise in low load condition. DMC looks very promising in emission control. DMC shows around 15-30 drop in CO high load condition while 20 % drop in HC. Also It is good option in NOx control as it shows around 10% drop at low load and 15% drop at higher load condition. The only limitation is high smoke production by DMC where other additive like N Butyl Alcohol help in lowering smoke production that is its show around 30% drop at high load condition

Hydrogen storage in liquid hydrogen carriers: recent activities and new trends

Efficient storage of hydrogen is one of the biggest challenges towards a potential hydrogen economy. Hydrogen storage in liquid carriers is an attractive alternative to compression or liquefaction at low temperatures. Liquid carriers can be stored cost-effectively and transportation and distribution can be integrated into existing infrastructures. The development of efficient liquid carriers is part of the work of the International Energy Agency Task 40: Hydrogen-Based Energy Storage. Here, we report the state-of-the-art for ammonia and closed CO2-cycle methanol-based storage options as well for liquid organic hydrogen carriers