Projets : page 10
Rechercher et filtrer Projets
The Relationship Between Abundant Greenhouse Gases and Macroinvertebrates
Greenhouse gas levels have been strictly increasing at an unprecedented rate, primarily caused by the burning of fossil fuels. Two of the most abundant greenhouse gases, methane and carbon dioxide, affect oceans by lowering the pH of seawater through ocean acidification which leads to the disruption of homeostasis within these ecosystems and harms aquatic organisms. This research project investigates the relationship between methane and carbon dioxide levels and the population of Cricotopus species with data obtained by the National Ecological Observatory Network (NEON) collected at the Kings Creek (KING), Kansas site. There is not enough evidence to support there being a relationship between the concentration of methane or carbon dioxide and the Cricotopus species count; however, methane does have a stronger correlation with Cricotopus species count than carbon dioxide does.
The Effects of Climate Variations on Mosquito Species Distribution at the Ordway-Swisher Biological Station (OSBS)
The National Ecological Observatory Network (NEON) provides open-access ecological data at various sites, including data on climate statistics and mosquito populations. Understanding variations in mosquito populations is important not only to understand how a changing global climate is affecting species populations, but also to model the spread of invasive species and mosquito-borne pathogens. Utilizing mosquito population from NEON at the Ordway-Swisher Biological Station (OSBS), as well as summary weather statistics, this study aimed to deduce the correlation between weather patterns, such as temperature, humidity, and radiation, and the populations of different species of mosquitoes found at OSBS. The study found that certain mosquito species reacted differently to weather patterns such as temperature. Additionally, the study found that although total mosquito populations remained relatively constant, due to interspecies competition the proportions of species differed significantly.
The Effect of Algae Populations on the Chemical Properties of Water
Recent changes in global climate have led to the disruption of various ecosystems. The physical changes that occur in ecosystems as a result of such begin on a molecular level with chemicals. In order to better monitor the situation, algae populations, as well as how they affect the chemical composition of their ecosystems, can be used as great indicators of the health of their surrounding environment. Analysis being conducted on the current situation of an ecosystem can be very valuable when creating or considering a model to predict future environmental conditions within that area. With the scientific question "How have algae populations in the Southeast affected the chemical conditions of their ecosystem?" in mind, these effects that are observed serve as insight into the health of an ecosystem that the human eye may not be able to see.
Identification of a novel pathway and its therapeutic target of tobacco promotion of lung cancer
Lung cancer is the main cause of cancer death in the world ,causing about 1,2 million deaths annually and 90%of lung cancer are related to tobacco smoking .The objectives of this project are to identify the molecular pathway that nicotine undergoes in lung cancer cells and to find a method of inhibiting the effects of of nicotine .The hypothesis is that nicotine in tobacco stimulates pathological lung tumor progression and metastasis through a moesin-RhoA mediated novel signal pathway. targeting components in the novel therapeutic approaches to the treatment of lung cancers.
Exhaust gas driven e-turbine
This project is intended to solve/to tackle the problem of low energy production,as it is in general a turbine mounted onto the exhaust of a petrol or diesel generator.By it's probable design it supposed to work in a similar way that a turbocharger does but in this case it produces direct current voltage(DCV) as it's turbine rotates a shaft which is attached to a medium to large motor capable of producing electrical current as the centre coil rotates in-between the magnets in it's casing.
Hydroelectropurification: A green approach to wastewater treatment
Availability of fresh water is reducing rapidly due to accelerated population growth and billions die annually due to waterborne diseases because of poorly treated wastewater supplied to households in trying to bridge the gap of fresh/reliable water source unavailability. Conventional water purification methods are adding to water contaminants due to chemical additives used and poor tertiary treatment. This project tests the hypothesis that a combined electrocoagulation and cold plasma technology system can make wastewater safe for reuse and aims to replace conventional chemical wastewater treatment methods with more efficient , chemical-free and ecofriendly solutions to ensure increased access to safely managed water services. Different types of contaminated or wastewater are to be electrocoagulated in a miniature system made from aluminium and a DC battery. The effluent is to be filtered then exposed to electromagnetic radiation using a kitchen microwave, in order to generate plasma in a low-cost experiment. The resultant water is to be tested for clarity, pH and hardness compared to tap water. The test is expected to yield clearer, softer water of a nearly neutral pH. Further experiments will investigate the bacterial content of the resultant water.
The Direct Conversion of Biomass Carbohydrates to Platform Molecules
My project is entitled the Direct Conversion of Biomass Carbohydrates into promising platform molecules. My project focuses on converting functionalized sugars from the hydrolysis of lignocellulosic biomass into high energy density biofuels. Untreated feedstock (eg) (maize cobs or wood poplar)is used as the source of biomass. The reaction is Lewis acid catalysed; the catalysts being aluminium chloride and hydrochloric acid.The catalysts maximise the HMF yields. An organic solvent is used to suppress side reactions that produce unnecessary products. Reaction conditions of 200 degrees Celsius for 5 minutes using 8 millimolar Aluminium chloride and 33 millimolar Hydrochloric Acid were found to be the most conducive for the direct dehydration of glucagon and hemicellulose present in feedstocks. The reaction takes places in a microwave reactor. HMF would have been obtained. The Hydroxymethylfurfural is then undergoes certain processes to obtain hydrocarbon fuels such as 2-5 dimethylfuran.
