Taking Account of Non-Timber Values in Harvest Decisions in the Southern Forest of Tasmania

This paper examines the optimal use of a site containing standing timber, taking account of both timber and non-timber values. It discusses the range of non-timber values yielded by a typical site in the southern forest of Tasmania. Taking that site for illustrative purposes, it calculates the relationships between age of stand, extent of timber and non-timber values, and optimal cutting age, using a spreadsheet model. It finds that for a stand with moderate potential environmental benefits there is a period of its life during which it is optimal to log. This segment narrows, and eventually disappears, as potential environmental benefits increase.

Is organic farming a mitigation option? – A study on N2O emission from winter wheat

The objective of the study was to evaluate whether N2O emissions from cropping systems are affected by 1) organic versus conventional farming, 2) proportion of N2-fixing crops in the rotation and 3) use of catch crops

Resilient security against hackers using enchanced encryption techniques: Blowfish and Honey Encryption

Data security refers to protective digital privacy measures that are applied to prevent unauthorized access to computers, databases and websites. Data security also protects data from corruption. Data security is the main priority for organizations of every size and genre. Data security is also known as information security (IS) or computer security. So in this paper to provide security to our data we use encryption. The primary purpose of encryption is to protect the confidentiality of digital data stored on computer systems or transmitted via the Internet or other computer networks. To achieve encryption we are using two advanced encryption techniques: blowfish and honey encryption

Literature Survey On Standalone Pumping Station For Agriculture Purpose Using Solar PV

The concept of the project is to utilize the abundant solar energy available, harness it for effective work output. Here we are trying to use solar energy to run the centrifugal pump for lifting the water from the well. This can be utilized for different purpose like irrigation for agriculture & nurseries, etc. Here we are collecting all information about which kind of constraints required for planning of standalone pumping station for agriculture purpose. In this paper we are finding out which are power electronics applications in renewable energy sources. This document will help all researcher to start work on Solar PV’s, irrigation using renewable energy , as well as for finding the power electronics application in renewable energy sources. DOI: 10.17762/ijritcc2321-8169.15036

Modeling of PV Array to Study The Effects of Partial Shading on Its Characteristics and MPPT

MATLAB based modeling and simulation scheme suitable for studying the I-V and P-V characteristics of PV array under a non-uniform insolation due to partial shading and finding maximum power point from the characteristic is presented in the paper. This involved the Simulink and embedded MATLAB code for simulation. This is simple to use, accurate and economical computer aided design tool which can be used to enhance the understanding and predict the I-V and P-V characteristics of large PV arrays. It can be used to study the effect of temperature, insolation variation, varying shading patterns and the role of array configuration on the PV characteristics. Paper proposes standard algorithm to track the power peak under partially shaded conditions. The modeling and simulation of the maximum power point tracking algorithm is implemented in MATLAB / Simulink environment. The simulation results prove that with Perturb and Observe (P&O) algorithm, MPPT reaches the intended maximum power point