Unconventional oil is petroleum produced or extracted using techniques other than the conventional methods. Handpieces are made using various methods and materials. All of these aforementioned methods are chemical processes. He was inventive in his methods and technique. Multiple payment methods, easy to use. There are a variety of usability evaluation methods. There are no other effective methods. Birds navigate during migration using a variety of methods. Canada also produced military equipment using American methods and tooling. Actuaries began to forecast losses using models of random events instead of deterministic methods. Initial research into the effectiveness of the various alerting methods is sparse. It is used as a benchmark for many optimization methods. Quantifying gene expression by traditional DNA detection methods is unreliable. It is used as one of the frameworks in corporate social responsibility methods. Solutions to limitations in current vaccine methods are being researched.