Determining absorbance of various wavelengths of light for pigments present in Coleus plants Joseph Yung (King Yung) 212831426 Adrian Ionescu Section M 11 February 5‚ 2014 Absorbance Table Absorbance Spectra Figure 1: Absorption spectra of pigments found‚ through chromatography‚ within Coleus plants. The different wavelengths of light were determined by the use of a spectrophotometer Questions
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* SONET Digital Hierarchy * Synchronous Optical Networking (SONET) is a standardized multiplexing protocol that transfers multiple digital bit streams over optical fiber using lasers or light emitting diodes (LEDs). SONET was designed by the American National Standards Institute (ANSI) for the USA public telephone network in the mid 1980’’s due to the breakup of AT&T. With the breakup‚ numerous regional telephone companies were created and those companies encountered network problems working
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Analog and Digital Comparison Paper Fundamentals of Networking Analog and Digital Comparison Paper T(X) & synchronous optical network (SONET) digital hierarchy There are currently two infrastructure types that are in use today. The first being Plesiochronous Digital Hierarchy (PDH)‚ which was built on the three transmission standards identified as T-carrier (North America)‚ E- carrier (Europe)‚ and J-carrier (Japan). These transmission standards are commonly referred to as (T-X) for
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Different Wavelengths of Light and Pigmentation Abstract The roles played by light and pigmentation in photosynthesis were examined in the geranium and Coleus plant. In addition‚ the separation of certain pigments based on their molecular structure was also examined‚ with the use of paper chromatography. When different leaves of the geranium plant which were exposed to different wavelengths of light‚ photosynthesis proved to be most actively present in those exposed to blue and red wavelengths of
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Leased Lines Below what speed are there different leased line standards in different parts of the world? In the text “Business data networks and telecommunications” the author points out that leased lines vary worldwide from 56 kbps to several gigabits per second‚ depending on the technology used. The lowest speeds of these leased lines are 56 or 64 kbps in the United States‚ and 64 kbps in Europe. These speeds are comparable to modem speeds and are rarely installed. The typical wiring for these
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Abstract on Determining the Photosynthetic Activity in Plants Using Different Wavelengths of Light using Chromatography and a Spectrophotometer In this experiment‚ the separation of particular pigments‚ contained within a fresh spinach leaf‚ were examined. Paper chromatography is the process of separating certain molecules‚ or pigment molecules‚ based upon their polarity. Four different pigments were examined from the spinach leaf: chlorophyll a‚ chlorophyll b‚ xanthophyll‚ and carotene. Based
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particular plants‚ Spinacia oleracea and Musa acuminata‚ which use different wavelengths of light to display various pigments of color. The light energy for photosynthesis calls for an array of light to be absorbed by the plants. In this experiment‚ the different wavelengths of light can be traced and graphed by extracting chlorophyll from these two plants and placing them into a spectrophotometer‚ which identifies what wavelengths of light a pigment absorbs. It was found that Musa acuminata‚ commonly
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provide information about the molecule‚ such as the concentration‚ by identifying the most preferentially absorbed wavelength.1 Food coloring and potassium permanganate: This method was used with red‚ blue‚ and purple food colorings and potassium permanganate. Wavelength measures energy in nanometers‚ from the top of one peak to the top of another peak‚ of a wave. Each wavelength
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absorbs light. The color we see comes from the wavelengths of light that reflect. Chlorophyll‚ the green pigment common to all photosynthetic cells‚ absorbs all wavelengths of visible light except green. The green reflects back to our eyes. Black pigments absorb all of the visible wavelengths that strike them. White pigments reflect all or almost all of the wavelengths striking them. Each color has a unique mix of reflected and absorbed wavelengths. Chlorophyll is a complex molecule. A number
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are studied. Static wavelength routed optical networks are studied. Management on terms of lightpath allocation and design is considered. By using statistical models (simultaneous analysis of many networks) the correspondence between parameters determining the network topology and the performance of the optical network is found. These dependencies are important knowledge in the process of designing a network. It is also seen (statistically) found that the effect of wavelength converters on the performance
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