Research Methods in Natural Sciences and Engineering | Research Methodology
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In academic research, various methods are employed to discover knowledge, answer questions, and achieve groundbreaking discoveries. Today, we'll explore the research methods (or research methodologies) used in the fields of natural sciences and engineering, along with examples of research topics for each method.



Experimental Research

What Is Experimental Research?
Experimental research, prevalent in both natural and social sciences, involves designing and conducting controlled experiments to test hypotheses and establish causal relationships. Scientists manipulate variables and observe the effects to study phenomena in the natural world, providing empirical evidence that supports or refutes theoretical predictions.


Example Research
1. "A Brief History of Time" (Stephen Hawking)
  - Research Topic: Cosmology, Theory of Spacetime, etc.
  
2. "Large-Scale Genomic Analysis of Breast Cancer Identifies Novel Subtypes and Therapeutic Targets" (The Cancer Genome Atlas Network)
  - Research Topic: Identification of new subtypes of breast cancer and potential therapeutic targets through large-scale genomic analysis.



Modeling and Simulation Research

What Is 
Modeling and Simulation Research?
In science and engineering, modeling and simulation methods are frequently used. This methodology involves representing phenomena or systems with mathematical models and investigating them through computer simulations to predict and analyze behaviors, offering a cost-effective and efficient means to explore complex scenarios and optimize designs before physical implementation.


Example Research
1. "Computational Fluid Dynamics Simulation of Wind Turbine Wake Interactions" (J. Dahlberg et al.)
  - Research Topic: Numerical analysis simulation of wind turbine wake interactions.



Observational Research

What Is Observational Research?
Observational research methodology involves directly observing phenomena in natural environments or labs to collect data and understand patterns or mechanisms, using techniques like participant observation to systematically record behaviors and interactions for theoretical insights in fields such as psychology and sociology.


Example Research
1. "Observation of a New Particle in the Search for the Standard Model Higgs Boson with the ATLAS Detector at the LHC" (ATLAS Collaboration)
  - Research Topic: Observation of a new particle in the search for the Standard Model Higgs boson at the Large Hadron Collider (LHC).



Design-Based Research

What Is 
Design-Based Research?
In engineering, design-based research methodology is essential for developing new products, systems, structures, etc. This approach focuses on defining problems and progressing through design processes to develop solutions using various design tools and techniques, aiming to iteratively refine designs based on feedback and practical testing to meet user needs and industry standards.


Example Research
1. "Design and Evaluation of a Novel Biomimetic Robotic Hand for Prosthetic Applications" (S. Patel et al.)
  - Research Topic: Design and evaluation of a biomimetic robotic hand for prosthetic applications.



Field Research

What Is Field Research?
Field research involves collecting and analyzing data directly from real-world environments such as clinics, classrooms, or natural settings. Researchers observe participants, interact with them, and gather data to gain insights and summarize findings about specific phenomena or concepts, often employing both qualitative and quantitative methods to triangulate data and ensure comprehensive understanding of the studied phenomena.


Example Research
1. "The Immortal Life of Henrietta Lacks" (Rebecca Skloot)
  - Research Topic: Cell biology, medical ethics, educational methodologies, etc.


In conclusion, we've explored several examples of research methods used in natural sciences and engineering. The choice of research method depends on the nature of the research question, available resources, and desired outcomes. Scholars contribute to the growth of knowledge and societal development by employing suitable research methods in their research topics.