and animal cells have several differences and similarities. For example‚ animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed‚ rectangular shapes. Animal Cell Plant Cell Cell wall Absent Present (formed of cellulose) Shape Round (irregular shape) Rectangular (fixed shape) Vacuole One or more small vacuoles (much smaller than plant cells). One‚ large central vacuole taking up 90% of cell volume.
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Co-operative Solar Energy to Reduce Carbon Emission and Enlighten the Tribal people in Bangladesh Thesis By: Imtiaz Mahmud A.H.M. Tasbir Farid Anjoy Kumar Agarwal Co-supervised By: Md. Mehedi Islam Assistant Professor Dept. of TEE HSTU Co-supervised By: Md. Mehedi Islam Assistant Professor Dept. of TEE HSTU Supervised By: Md. Sazzadur Rahman Assistant Professor Dept. of TEE HSTU Supervised By: Md. Sazzadur Rahman Assistant Professor Dept. of TEE HSTU Introduction
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Energy Sources & Energy Transfer Renewable energy is energy which comes from natural resources such as sunlight‚ wind‚ rain‚ tides‚ and geothermal heat‚ which are renewable (naturally replenished). Sources: Solar Energy Wind Energy Hydropower Biomass Energy Hydrogen Geothermal Energy Ocean Energy A non-renewable resource is a natural resource which cannot be produced‚ grown‚ generated‚ or used on a scale which can sustain its consumption rate‚ once depleted there is no more available for
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Advantages and disadvantages of solar energy: The major benefit of solar is avoiding green house gases that fossil fuels produce. The first and foremost advantage of solar energy is that it does not emit any greenhouse gases. Solar energy is produced by conducting the sun’s radiation – a process void of any smoke‚ gas‚ or other chemical by-product. This is the main driving force behind all green energy technology‚ as nations attempt to meet climate change obligations in curbing emissions. Italy’s
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’radiation’ has to do with energy or matter moving through space. Space radiation affects astronauts when an amount of radiation gets through the walls of a space shuttle or station and enters the body. Solar radiation usually affects astronauts walking in space‚ outside of their space shuttles‚ but sometimes it can even affect the people on Earth‚ causing electricity failures. Many people - astronauts mostly- fear the consequences of solar radiation‚ due to the fact that solar radiation can cause dangerous
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Rate of Photosynthesis Aim: To investigate the effects of light intensity on photosynthesis. Background: Photosynthesis is a process that plants undergo to produce glucose. The plant then uses the glucose to produce energy which the plant needs to sustain life. The chemical formula for photosynthesis is: Sunlight 6CO2 +6H2O → C6H12O6 + 6O2 Chlorophyll The plant requires light‚ carbon dioxide and water to partake in photosynthesis. Photosynthesis
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\label{sec:Neutrino sources} Neutrinos are produced both naturally and in the laboratory. To understand the intrinsic properties of neutrinos‚ each of these sources provides information‚ sometimes overlapping. \subsubsection{Solar neutrinos} \label{sec:Solar neutrinos} It can be begin with solar neutrino problem because of its historical importance. The Sun generates heat and light through thermonuclear fusion reactions. There are cycles of such reactions which take place in the Sun‚ for example the {\it{pp}}
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Technology PASSIVE SOLAR DESIGN For more information‚ contact: Energy Efficiency and Renewable Energy Clearinghouse (EREC) 1-800-DOE-3732 www.eren.doe.gov Or visit the BTS Web site at www.eren.doe.gov/buildings Or visit the Sustainable Buildings Industry Council Web site at www.sbicouncil.org PASSIVE SOLAR DESIGN TOOLS One of the best ways to design an energyefficient house featuring passive solar techniques is to use a computer simulation program. Energy-10 is a PC-based design
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the simplest or chemical level and culminating with the highest level-the whole organism Chemical level – atoms (and their parts)‚ and combinations of atoms called molecures Cellular level – cells are the basic structural and functional units of life. Tissue level – tissue are groups of similar cells (and their intercellular material)‚ which work together toward a specific function. Examples include blood‚ muscle‚ nerves‚ ets mostly a common embryo group. Organ level – a structure composed
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Renewable Energy The use of renewable energy is probably one of the very few solutions for the energy needs of the future. It is considered as a form of safe‚ clean‚ and non terminating energy. In addition to all of that‚ renewable energy always brings marvelous economic benefits to any industry that uses it. Although renewable energy is expensive‚ time consuming‚ and less reliable sometimes‚ yet it still stands out as the solution for the energy needs of the future with respect to a safer environment
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