Wednesday, 2 September 2015

Seismic Evaluation and Comparision of Plan Irregular and Plan Irregular Soft Storey Building with Cross Bracing and Shear Wall System



Seismic Evaluation and Comparision of Plan Irregular and Plan Irregular Soft Storey Building with Cross Bracing and Shear Wall System
                                     Sachin Kulkarni1, Yogeendra.R.H. G2              

1P.G. Student, Department of Civil Engineering, Government Engineering College, Haveri, Karnataka, India
2Asst Professor, Department of Civil Engineering, Government Engineering College, Haveri, Karnataka, India

Abstract Generally improvement of reinforcement concrete frame structures against lateral loading is shearwall and cross bracing system. The use of cross bracing and shearwall has advantage over other scheme like higher stiffness, strength, and adds much less weight to existing structure. The seismic analysis of reinforced concrete G+6,G+12,G+18 buildings  with Cross bracing and shearwall is studied. The cross bracing is provided at the outer peripheral columns. The building models are analyzed by nonlinear push over analysis method using Etabs software. The main parameters compared are the buildings are lateral displacement, base shear, storey drift, storey, axial force shear and natural time period.
Keywords Cross bracing , Shearwall , Soft storey, Push over analysis.

Yellow passion fruit (Passiflora edulis f. flavicarpa Deg.) oil refining extracted by mechanical pressing



Yellow passion fruit (Passiflora edulis f. flavicarpa Deg.) oil refining extracted by mechanical pressing
Julianna Karla Santana Andrade1, Lília Calheiros de Oliveira Barretto2, Gabriel Francisco da Silva3, João Antônio Belmino dos Santos4

1 Flavors Laboratory, Federal University of Sergipe, São Cristóvão
2 Graduate Program in Chemical and Biochemical Process Technology, Federal University of Rio de Janeiro, Rio de Janeiro
3 Alternative Technologies Laboratory, Federal University of Sergipe, São Cristóvão
4 Department of Food Technology, Federal University of Sergipe, São Cristóvão

Abstract Clarifiers clays are used in refinery operations of vegetable oils to remove pigments, improving their appearance, odor and flavor. In this study, yellow passion fruit (Passiflora edulis f. flavicarpa Deg.) seeds oil was extracted by mechanical pressing. Passion fruit seeds were dried in a convective dryer under temperatures of 50, 60 and 70°C in order to adjust different mathematical models to experimental data. Physico-chemical analyses were carried out of oil samples resulting from the refining process steps. Oil thermal performance was also evaluated during 90 days. Physico-chemical results varied in each refining stage: refractive index (1.4763 to 1.4666), water activity (0.9567 to 0.5140) and density (1.02 to 0.8914). Thermogravimetric (TGA), derivate thermogravimetric (DTGA) and differential scanning calorimetry (DSC) curves showed that refined oils presented a better thermal stability compared to the standard oil, without the clarification step.
Keywords clarifiers agents, oil extraction, oil refinery.

Design of A Low Power and High Speed Integrated Circuit using Modified Feed Through Logic



Design of A Low Power and High Speed Integrated Circuit using Modified Feed Through Logic
Shazia Rana Begum1, Md.Qaiser Reza2
M.Tech in Electronics & Communication Engineering(VLSI-Design)
Department of Electronics & Communication Engineering
Al-Falah School of Engineering & Technology, Faridabad, Haryana, INDIA.


Abstract A modified approach for Feed-Through logic (FTL) is developed in this paper to provide a design of a low power and high performance dynamic circuit . The need for faster circuits with low power dissipation has made it common practice to use feedthrogh logic. The proposed circuit for low power improves dynamic power consumption as compared to the existing feedthrough logic and to further improve its speed we proposed another circuit which improves the speed by sacrificing dynamic power consumption. The proposed circuit is simulated using 180 nm, 1.8 V CMOS process technology.FTL performs a partial evaluation in a computational block before its input signals reach a valid level, and performs a quick final evaluation as soon as the inputs arrive, leading to a reduction in the delay.  Intensive simulation results in Cadence environment shows that the proposed modified low-power structure reduces the dynamic power approximately by 35% and the modified structure for high performance achieves a speed up- 1.3 for 10-stage of inverters and 8-bit ripple carry adder in comparison to existing feedthrough logic. The concept is validated through extensive simulation.Problems associated with domino logic like limitation of non-inverting only logic  and the need of output inverter are eliminated.
Keywords Feedthrough logic (FTL);dynamic CMOS logic circuit; high performance; low-power adder.

A theoretical analysis of zero-field splitting parameters of Mn2+ in zinc lactate trihydrate



A theoretical analysis of zero-field splitting parameters of Mn2+ in zinc lactate trihydrate
Ram Kripal1, Manju Singh2

1,2EPR Laboratory, Department of Physics, University of Allahabad, Allahabad 211002, India

Abstract The superposition model is used to investigate the crystal field parameters (CFP) of Mn2+ ion in single crystal of zinc lactate trihydrate, and then zero-field splitting (ZFS) parameters D and E are also evaluated by the perturbation formulae. These calculated values of ZFS parameters match well with the experimental values evaluated by electron paramagnetic resonance (EPR) at room temperature. With the help of CFA package and crystal field parameters evaluated by superposition model the energy band positions of optical absorption spectra of Mn2+ doped zinc lactate trihydrate are evaluated and compared with the experimental results.
Keywords A. Organic crystal; C. Crystal structure and symmetry; D. Crystal and ligands fields; D. Spin-orbit effects; E. Electron paramagnetic resonance.  
PACS  No: 76.30.Da ; 76.30.Fc; 71.70.Ch   

Analytical Solution with Two Time Scales of Circular Restricted Three-Body Problem



Analytical Solution with Two Time Scales of Circular Restricted Three-Body Problem
F.B. Gao1, H.L. Hu2

1School of Mathematical Science, Yangzhou University, Yangzhou 225002, China
2College of Mathematics, Physics and Information Engineering, Zhejiang Normal University, Jinhua 321004, China


Abstract Analytical solution performs a vital role in a wide variety of deep space exploration missions, especially the periodic solutions which were believed to be the unique avenue to solve three-body problem by Poincaré. As the absence of a general solution for the problem, an approximate analytical solution of the circular restricted three-body problem is addressed by employing multiple scales method in conjunction with some analytical techniques. It is worthwhile to note that the presented solution in three-dimensional space contains two time scales:  and  ( is a small, dimensionless parameter), which is significative to improve and perfect the known literature.
Keywords Analytical solution, multiple scales, three-body problem.

Engineering Journal: October Issue 2017

TOC’S Five-Step Cycle: An Approach to Instant Results and Cultural Change Abstract — The Theory of Constraints (TOC) offers an interestin...