Volume 6, Issue 5, May 2018 Edition - GSJ Journal Publication
EVALUATING THE SUITABILITY OF AUTOMOTIVE GAS OIL (DIESEL) FUEL FOR GAS TURBINE LP COMBUSTOR OPTIMUM PERFORMANCE ACROSS LEAN EQUIVALENCE RATIOS [PDF]
Wilson Alli, Osagie Ighodalo and Christopher AjuwaThis work investigated the suitability of Automotive Gas Oil (AGO) fuel for optimum performance in the gas turbine engine lean premixed combustor at varying equivalence ratios. The process entails the numerical simulation of Automotive Gas Oil in a lean premixed combustor at different varying lean equivalence ratios. The computational fluid dynamics (CFD) technology using the ANSYS Fluent code (Academic Research CFD) version 16.2 was adopted to investigate the characteristic of the AGO during intense combustion activities at lean equivalence ratios (0.3,0.5,0.7 and 0.9)ϕ through the direct numerical simulation (DNS) processes. An AutoCAD pre-designed combustor was exported to the ANSYS Fluent GUI for fine tuning, gridding/mesh generation and discretisation process with the ANSYS Fluent solver while leveraging the finite difference method (FDM) to solve emerging complex equations. With the established combustor boundary conditions similar to an operational industrial gas turbine engine generating at 20MW. Simulations were conducted in both the steady-state and transient combustions regimes to evolve details of respective fuel combustion mannerism profiles on simulation convergence attainment. The obtained result detail of the dynamic, total pressures, acoustic amplitudes contours with CH* and OH* mass fractions for each fuel simulated under four equivalence ratios were analysed and tabulated. The outcome-based on parameters per equivalence ratio were analysed and compared to establish differences to proffer responses to the primary objectives of the research theme. The outcome revealed steady temperature range occurring between the equivalence ratio rate with the maximum temperature reading of 1044.38k at 252kPa at 0.5ϕ
SECURITY ENHANCEMENT & SOLUTION FOR AUTHENTICATION IN CORPORATE NETWORK WITH FIREWALL CONFIGURATION AND AUTHENTICATION FOR SERVER PROTOCOL [PDF]
Syed Jamaluddin Ahmad, Roksana Khandoker, Farzana Nawrin Firewalls are used to protect networks from malicious traffic from the outside and Limit the flow of information from inside protected networks to the outside world. Most firewalls filter traffic based on network addresses and packet contents. Unfortunately, one major goal of firewalling that of limiting the users and programs that can communicate, is not well served by such designs: it is difficult to accurately map network addresses and packet contents to user and program names. Firewalls can solve the problem of securely mapping user names to addresses when filtering inbound traffic from un trusted networks through the use of covert authentication systems such as port knocking and single packet authorization. Egress firewalls can identify users and programs on trusted networks through the use of application filters. In this thesis, I survey the current state of both types of systems, describe their weaknesses, and introduce techniques to alleviate some of these weaknesses.
EFFECT OF TRAMADOL ON BIOCHEMICAL PARAMETER USING MALE ALBINO RATS [PDF]
Nwaogwugwu, C.J ., Egege A.N.,Okereke S.C., Ezekwe A.S., Akara E.U Analgesics are the traditional pain killer medications that are easily and commonly consume for different types of aches and pains. But the way young people abuse it is in increase in the society.The present study investigated the effect of Tramadol administration on renal, liver and body weight on albino rats. The present study was conducted to assess the effects of Tramadol on both liver and kidney functions biomarkers using albino rat. Antioxidant levels, hematological parameter, liver, kidney histopathology were also evaluated.
THE UNITED NATIONS SECURITY COUNCIL REFORMS [PDF]
Sandesha Perera The need to reform the United Nations has been a widely discussed topic. Yet these reforms have been always obstructed due to the lack of consensus of the states. This paper pays attention mainly to the United Nations Security Council (UNSC) reforms and Veto power reforms while there are many more areas where reforms are needed. Security Council reforms are always a debatable topic in the UN agenda and considered as difficult to be reformed. This research is mainly based on qualitative data which provide in depth analysis into the discussed phenomenon. For the study it has utilized mainly the secondary data obtained from UN documents, journal articles and books. It is discussed that the Security Council needs to be broadened giving way to member states to represent them in the UNSC without confining it to the 5 powerful members who have been using the power for more than 7 decades so far. Also there have been debates that veto power should be abolished, which is again doubtful as the veto power holding members have to give their consent for that. Therefore all these reforms are merely for the time being word sake reforms which cannot be put in to practice in reality.
THE EFFECT OF ADDITIONAL PAPAIN CRUDE ENZYME IN FED ON THE GROWTH RATE OF BARB JUVENILE (OSTEOCHILUS HASSELTI) IN FLOATING NET CAGE AQUACULTURE CIRATA RESERVOIR [PDF]
Rita Rostika,Titin Herawati,Akhmad H.K. Suhendar, Lantun P. Dewanti The aim of this research was to determine the effect of addition of papain crude enzyme with different doses in feed and optimal doses that can produce the highest barb juvenile growth rate in floating fish cage aquaculture Cirata Reservoir. The research was conducted from March until May 2016 in laboratory of research and service of chemical at FMIPA UNPAD and floating net cage aquaculture of BPPPUIH Cirata Reservoir. The method implemented was experimental method using Group Randomized Design (GRD) with five treatments and three replications. The treatments were five level of the amount of papain crude enzyme on feed (0%, 2.25%, 3.00%, 3.75%, and 4.50%). The results showed that the papain crude enzyme with protease activity 12.63 Unit/mg protein was able to increase the value of daily growth rate and feed efficiency of barb juvenile. The amount of 3.00% papain crude enzyme on feed gave the highest results upon daily growth rate (1.76%/ day) and, feed efficiency (37.70%) with survival rate (98.00%).