Current directory

Problem of Overcoming the Resistance of Harmful Organisms to the Action of Phytoprotective Preparations

Abstract

Abbreviations

Introduction

Review

Conclusion

References

Morphological and Molecular Characterization of Four Edible Wild

Mushroom Strains Using RAPD Markers

Abstract

Introduction

Materials and Methods

Results and Discussion

Acknowledgments

References

Unsteady Hydromagnetic Flow Formation with Hall Effect Due to Time-Dependent Free Stream in a Rotating Medium

Abstract

1. Introduction

2. Formulation of the Problem and Its Solution

2.1. Solution for Accelerated Movement of Free-Stream

2.2. Asymptotic Solutions

3. Results and Discussion

Conclusion

Appendix

References

Compressed Biogas from Maize Waste

Abstract

1. Introduction

2. Demand of Maize in Bangladesh

3. Anaerobic Digestion

3.1. Hydrolysis

3.2. Acidogenesis

3.3. Acetogenesis

3.4. Methanogenesis

4. Biogas

4.1. Compressed Biogas (CBG)

5. Biogas Purification and Bottling

5.1. Purification

5.1.1. Hydrogen Sulfide Removal

5.1.1.1. Air/Oxygen Dosing to Biogas

5.1.1.2. Iron Chloride Dosing to Digester Slurry

5.1.1.3. Iron Oxide

5.1.1.4. Activated Carbon

5.1.2 Carbon Dioxide Removal

5.1.2.1. Water Scrubbers

5.1.2.2. Polyethylene Glycol Scrubbing

5.1.2.3. Carbon Molecular Sieves

5.1.2.4. Membrane Separation

5.2. Bottling

6. Use of Digestate

7. Co-Digestion

8. Increasing Biodegradability of Maize

9. Materials and Methods

9.1. Procedure

10. Result

10.1. Physical Interpretation of Characteristic Curves

10.1.1. Cumulative Biogas Production Curve

10.1.2. Differential Curve of Biogas Production

10.1.3. Yield of Biogas

10.2. Influence of pH

10.3. Influence of Percentage of Cow Dung and Maize Stover

10.4. Influence of Cow Dung in Biogas Production

10.5. Influence of Pretreatment of Maize Stover

10.6. Overall Result Comparison

11. Energy Conversion

Conclusion

References

Pressure Data Analysis Using Derivative Type Curve for Multilayered Gas Reservoir

Abstract

Abbreviations

Introduction

Scope of the Paper

Methodology

Data Preparation

Data Input

Data Analysis

Results and Discussion

Build Up Test Analysis (Diagnostic Analysis)

Derivative Type Curve Analysis

Vertical Model Analysis

Multilayer Model Analysis

Deliverability Test Analysis

Comparison among Diagnostic Analysis Parameters, Vertical Model Parameters and Al Mansoori Wireline Services Model Parameters

Comparison the Flow-After-Flow Test Results and Al Mansoori Wireline Services

Recommendation

Conclusion

Acknowledgment

References

Modeling Liquid Loading of Gas Wells and Its Remediation

Abstract

Nomenclature

Subscripts

Introduction

Model Development

Reservoir System

Wellbore System

Transition from Annular Flow

Methodology

Results

Remediation

Conclusion

Appendix A ─ Example Calculations

References

Estimation of Downhole Cuttings Concentration: A Comparative Study of Two Empirical Models Using Experimental Data

Abstract

Nomenclature

Introduction

Empirical Models & Experimental Data

Ahmed Model

Rubiandini Model

Experimental Data

Analysis of Experimental Data

Comparison of Models

Conclusion and Recommendations

References

Bibiyana-Dhanua 137 km x 36" Gas Transmission Line: A Simulation Study and Economic Analysis

Abstract

Introduction

Network Modeling

Model Validation

Flow Rate and Pressure Scenario of the Existing Pipeline Network with 137 Km × 24"of Bibiyana- Dhanua Pipeline

Prediction: Minimum Pressure in Khulna at Present Demand Considering B-D Line 24” In Diameter

Costing of Bibiyana-Dhanua Pipeline

Cost Recovery Projection of Bibiyana-Dhanua Pipeline

Conclusion

References