Birendra Prasad

Effect of plant growth regulators on rooting survival of air layering in litchi

The experiment was conducted at Bihar Agriculture College, Sabour in 2002- 03 with two Bio-regulators (IBA and NAA) and there combinations in Randomized Block Design with three replication to know the effect of bio-regulators either alone or in combination on rooting percentage, survival percentage, rooting ability, growth and development of air layers in litchi. In this experiment it was found that IBA 5000 ppm produced maximum rooting layers (90.00 %) in litchi cv. PURBI. IBA 5000 ppm also proved better in survival percentage (86.66 %) fresh weight of roots (4.37 g) was found more in case of IBA 5000 treated layers followed by IBA 5000 ppm + NAA 5000 ppm (4.35 g) and minimum (2.24 g) under control, dry weight of roots was found maximum (1.11 g) by IBA 5000 ppm + NAA 5000 ppm treated layers whereas it was minimum (0.71 g) in untreated layers. The diameter of primary roots was maximum (0.83 mm) in untreated layer and minimum diameter of root (0.57mm) was found in bio-regulators (IBA 5000 ppm) application. IBA 5000 ppm alone or in combination with NAA at higher concentration as IBA 5000 ppm plus NAA 5000 ppm (T9) were found best in various parameters of root formation, root development, quality and growth of layers in the nursery.

Testing and reconfiguring the application based modulation suited for cognitive radio

Reconfiguration plays a vital role in resource utilization. The functional, interconnect testing of digital circuits is done using Boundary Scan Trainer (BST) kit. The faulty cores if replaced by spare ones in real time reduce the switching time. This procedure is implemented in wireless network system also. The proposed work focuses on wireless communication among nodes, grouping them as different clusters so as to form a virtual logic channel for each cluster, implemented using kernel customized, low power consuming hardware modules. A large number of simple low-power nodes are distributed in the field and transmit data in a secured manner.

Power analysis and diagnosis of faults in VLSI circuits

FPGA based Fault injection and Fault tolerance techniques are used to evaluate and validate the reliability of VLSI circuits. This approach combines the efficiency of hardware based techniques and the flexibility of simulation based techniques. The system efficiency and robustness increases as the reconfiguration of FPGA is not needed for each fault experiment. Fault injection is performed using commercial VHDL simulation tools such as static and dynamic methods. Instrumented 2 bit multiplier circuits were employed to evaluate the fault injection technique. The power analysis results provided for fault free, stuck-at-0 and stuck-at-l faults in digital circuits validate the point that faulty circuits dissipate more and hence draw more power.

Design and comparative analysis of inexact speculative adder and multiplier

A Carry look ahead adder is a sort of the summer used in the logic design of the digital systems. The CLA boost up the speed by decreasing the measure of duration needed to calculate the carry bits. The CLA based outline of the inexact speculative adder is pipelined architecture to incorporate couple of logic paths along its basic way and in this manner, improving the recurrence of operation. This paper presents the comparative analysis of the pipelined inexact speculative adder and the general carry look ahead adder and showed that the delay is reduced to 48.27% when compared to carry look ahead adder and also we have designed the pipelined multiplier using the Inexact speculative adders and observed that the delay is reduced to 48.32% when compared to the normal multiplier. This entail Xilinx ISE Design Suite 14.5 Tool.

Implementation of four layer automatic elevator controller

In this modern era, elevators have become an integral part of any commercial or public complex. It facilitates the faster movement of people and luggage between floors. The lift control system is one among the keenest aspects in electronics controlling module that are used in auto motive filed. Usually elevators are designed for a specific building taking into account the main factors like the measure of the building, the count of persons travelling to each floor and the expected periods of large usage. The lift system was designed with different control strategies. This implementation is based on FPGA, which could be used for any building with any number of floors, with the necessary inputs and outputs. This controller can be implemented based on the required number of floors by merely changing a control variable from the HDL code. This approach is based on an algorithm which reduces the number of computation necessary, on concentrating only on the relevant principles that improves the score and ability of the club of elevator structure. The elevator controller is developed using Verilog HDL and is perfectly executed on a Xilinx ISE 12.4 and Spartan –3E FPGA.In this modern era, elevators have become an integral part of any commercial or public complex. It facilitates the faster movement of people and luggage between floors. The lift control system is one among the keenest aspects in electronics controlling module that are used in auto motive filed. Usually elevators are designed for a specific building taking into account the main factors like the measure of the building, the count of persons travelling to each floor and the expected periods of large usage. The lift system was designed with different control strategies. This implementation is based on FPGA, which could be used for any building with any number of floors, with the necessary inputs and outputs. This controller can be implemented based on the required number of floors by merely changing a control variable from the HDL code. This approach is based on an algorithm which reduces the number of computation necessary, on concentrating only on the relevant principles that improves the score and ability ...

Effect of NPK, boron and sulphur on growth and yield of passion fruit

India is bestowed with a wide range of soil and agro-climatic conditions. Therefore, almost all types of fruit can be grown in one or the other parts of the country. China is the largest producer of fruits followed by India which now accounts for about 10 per cent of world production. Passion fruit belongs to the family Passifloracea, distributed throughout the tropical and subtropical regions of the world. There is need to improve and standardize the nutrient doses by which we increase the production of this fruit. Keeping with these views, the experiment was conducted in the experimental farm, Department of Horticulture, BAU, Ranchi. This experiment consisted of ten treatments including control. The treatments were NPK (300: 150:150 g/vine), NPK (250: 125:125 g/vine), boron 1.2 g/vine, sulphur 24 g/vine, the next four treatments were combination of NPK with boron and sulphur, and two controls. Thus, there were ten treatments, replicated thrice in Randomized Block Design. In all the treatments 2 kg of vermicompost and 0.5 kg of lime were applied as basal dose except absolute control. All the treatments exhibited better results over untreated control and absolute control. Highest yield (56.65 q/ha) was obtained by NPK (250: 125:125 g/vine) + boron 1.2 g/vine which was at par with, NPK (300: 150:150 g/vine) + boron 1.2 g/vine (49.15 q/ha) and NPK (250: 125:125 g/vine) + sulphur 24 g/vine (52.48 q/ha). Thus, NPK (250: 125:125 g/ vine ) + boron 1.2 g/vine appeared to be the best treatment in vegetative character, reproductive characters, fruit characters and yield followed by NPK (250:125:125 g/ vine) + sulphur 24 g/vine.

Storage Longevity of Passion Fruit Squash

The present investigation on the storage longevity of passion fruit squash was carried out in the Experimental laboratory of the Department of Pomology and Post Harvest Technology, Faculty of Horticulture, Uttar Banga Krishi Vishwavidyalya, Pundibari, Cooch Behar during 2007-08. Four treatment combinations of both yellow and purple passion fruit squash with different concentrations of sugar and preservatives were evaluated for extending the storage life of squash. In yellow passion fruit squash T 3 (6.38 °Brix) and in purple passion fruit squash T 4 (8.23 °Brix) were found to have very less percentage change of TSS over initial value after six month of storage. The acidity value among various treatments, T 3 for yellow passion fruit squash and T 4 for purple passion fruit squash had recorded minimum percentage change in acidity over initial after six month of storage. The ascorbic acid content in different treatments for both yellow and purple passion fruit squash were found to decrease throughout the storage period. Considering mould count after six month of storage, T 3 was found best treatment both for yellow and purple passion fruit squash. The effect of KMS was better for suppressing mould growth than sodium benzoate. It was observed that hedonic score for yellow and purple passion fruit squash was decreased with increase in storage period. The yellow passion fruit squash prepared with 250 ml juice + 460 g sugar + 290 ml water + 1 g citric acid + 0.6 g KMS as preservative and the purple passion fruit squash prepared with 250 ml juice + 475 g sugar + 275 ml water + 2.5 g citric acid + 0.75 g sodium benzoate as preservative have been found to be the best treatment for the storage life.

Pre-Sowing Seed Treatments with Different Chemicals and Growth Regulator on Seed Germination and Growth of Passion Fruit

Passion fruit is getting popularity and its cultivation is gradually increasing in India. Very few works had been carried out regarding cultivation of this fruit. For large production and easy procurement of planting material, propagation from seeds may be done. Hence, there is need to improve germinations and vigour of seedlings. Keeping the above points in view, the present investigation was carried out. In this experiment, pre-sowing seed treatments were done with different chemicals (50%HCl. 5%H 2 SO 4 , 1% thiourea, 1% KNO 3 , 2% sucrose, 2% urea, 2% bleaching powder) and growth regulator (100ppm GA 3 ) on seed germination of passion fruit. The objective of this experiment was to standardize the effect of pre-sowing seed treatment which consisted of 9 treatments and one control. The experiment was laid out during 2009-10 and 2010-11 in experimental polyhouse in the Department of Horticulture, Birsa Agricultural University, Kanke, Ranchi (Jharkhand) and was conducted in the statistical design, CRD. All the treatments exhibited better results over untreated control, but (S 8 ) seeds treated with 2 per cent bleaching powder in 24 hrs treatment emerged as the best regarding germination, growth of the seedlings followed by (S 5 ) seeds treated with 100ppm GA 3 for 30 min.