Trace Evidence Trace evidence is an important part of a team in solving crimes in forensic investigations. According to Edmond Locard‚ there is specific that no matter wherever people interact with their environment or is physically involved in a crime often leaves something at or something away from the scene. Those in this category of evidence include many diverse types of macroscopic or microscopic materials that certain examples are easily visible to our “naked eye”. The subject is broad and
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The natural plant exudate gum tragacanth is obtained from the stem of the bush like plant “goat’s-horn”‚ Astragalus species. Gum tragacanth has been used commercially for well over 2000 years and is currently widely used as a thickener and emulsifier in emulsion systems in different pharmaceutical‚ food‚ cosmetic and diverse industrial uses. In addition‚ it is on the list of stabilizers that are permitted by Food and Agriculture Organization/ World Health Organization that could be used during the
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task. Here‚ THz technology can provide a valuable contribution. KEYWORDS: - THz technology‚ THz spectroscopy‚ THz sciences. I. INTRODUCTION The term ‘T-rays’ was coined in the early 1990’s by Bell Labs to describe the spectrum in the Terahertz range (1 THz = 1012). [1] The terahertz region of the spectrum lies on the border of where electronics and optics meet between the mm-wave and infrared bands (100 GHz-10 THz). THz wave could handle ultra broad band signals ‚ have very large absorption
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spectrophotometric analysis of copper sulphate Introduction: In the modern usage. The term spectroscopy includes a large group of techniques which differ widely in their mode of application and information they reveal. As a useful working definition‚ spectroscopy is a study of interaction of electromagnetic radiation with matter in the experiment it means it’s the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately adjacent
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Our Infrared Spectroscopy (IR) spectrum for our Acetaminophen KBr pellet provided a handful of strong peaks and hints that helped us to hypothesize what functional groups might be in Acetaminophen. The peaks that were at the highest wavenumbers were analyzed first. The strong peak at 3325.82 cm-1 was an indicator that there was stretching occurring between a Hydrogen and Nitrogen atom. This signified that Acetaminophen could contain an amide group. The next defined peak is located at 3162.26 cm-1
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Microwaves (3:04) 7. Where are Microwaves found on the electromagnetic spectrum? Microwaves have wavelengths ranging from 30 centimeters down to 1 millimeter. Microwaves fall between radio waves and infrared waves. 8. Describe one thing that C‐Band Microwaves are used for? Medium length C-Band Microwaves are used for revealing the Earth’s surface. 9. What did two scientists discovered by accident using L‐Band Microwaves? The two scientists
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to intensify human sight under very low light conditions. Although more human activities are done during the day than night‚ the capability to see in the dark is still significant in many occasions. Night vision devices focuses infrared light to objects in the dark; infrared is beyond spectrum visible to the human eyes. A device for night vision was perfected during wartime giving soldiers in the battle field a technical benefit over their enemies. Vision equipment has evolved from bulky optical
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And determine the water activity in some food samples such as biscuits‚ bread‚ flour and instant noodles by using water activity measurement machine. 3. Theory To determine the moisture content in the food‚ methods such as open dish method and infrared balance method are used. 3.1 Hypothesis of Experiment This report was written to investigate and discuss the results (moisture content and water activity) obtained from this experiment and the possible storage methods to keep the foods safe
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Project Report On INFRARED BUG This Project report is submitted in Partial fulfillments of the requirements for Fifth semester term work in Electronics & Telecommunication Engineering Submitted by 1. MAHESH GAUTAM V Sem. ETC-A/55 2. MANDEEP KUMAR V Sem. ETC-A/56 3. DIVYESH SRIVASTAVA V Sem. ETC-A/61 4. VIVEK KUMAR V Sem. ETC-A/64 Guided by Prof. A. S. Titarmare Electronics & Telecommunication Engineering Department G.H.Raisoni
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Experiment 36: Determination of the Structure of a Natural Product in Anise Oil Purpose: The purpose of this experiment is to isolate the major component of anise oil and determine its identity and structure using melting point determination and IR spectroscopy. Introduction: The major component of anise oil has the chemical formula C10H12O. This compound is said to be hydrogen deficient‚ meaning that it contains less hydrogen atoms than would be needed for each of the carbon atoms to have the maximum
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