Particle Size and Shape Measurements of Soot Using Image Analysis Lab Report

Particle Size and Shape Measurements of Soot Using Image Analysis - Lab Report Example The shapes of the particles were not purely rounded. The soot image had slightly larger particles having an area of approximately 8.6 cm squared. The solidity of the particles was found to be relatively high for the soot images that was swelling. Introduction. In industrial sectors, accurate and quick analysis of particle size distribution is of great importance. In many cases, the surface growth of the soot has been seen to be more dominant that the soot mass yield. A number of operations of mineral processing rely on the distribution of sizes and measurements that are key in bettering the efficiencies of the industrial sectors (Megaridis 14). A significant number of industrial processes of soot are mostly established through the distribution of the sizes of particles in their industrial processes. To characterize the soot growth rate, the theoretical model assessment is the surface area of the soot. For instance, the growth of the mass of soot normally comes before the abstraction of hydrogen establishing a radical surface site in the acetylene preparation. In these processes, the rate of mass addition relies on the total area of the surface and the amount of reactive surfaces. A substantial number of parameter that identify soot’s growth rate can be measured in an optical manner such as the fraction volume of the soot, temperature, and velocity. Such measurements are beneficial due to their non-intrusive nature, and the fact they occur in real time. The optical measurement of the size of the particle can facilitate the soot mass growth measurement and the rates of oxidation per surface area. A number of studies conducted on this field have determined the size of the soot particles using different methods like the electron transmission microscopy, time intensive and intrusive processes, and thermophoretic soot sampled micrograph among other methods. So far, there is no study that has used image analysis to determine the shape and size of soot particles . In this respect, a study was set to investigate the particle size and shape measurements of soot using image analysis. Theory. A digital image is made up of different pixel that are normally assigned a specific value. In the digital vision, the process of segmentation can be referred to as a partitioning process of the digital image into several segments (Harris 3). In this respect, the segmentation objective is normally to change or simplify the image representation into an easier an meaningful image for analysis. One of the simplest methods in image analysis is thresholding. Beginning with a grayscale image, binary images can be obtained through thresh holding. Binary images can be defined as digital images having only two pixel values (Sunderland 7). In many situations the two categories of colours used in binary imaging involve black and white. In this process, the shape descriptors of particles from the analysis of the image are normally determined through the use of values t hat are measured for the area, major, perimeter, and minor axis parameters. These values are normally given out through the image analyzer and can be identified as a critical tool in the particles classification of shape (Howard 1107). The calculation of the particles’s shape can be given by equation 1. C = 4pi* [Area/ Perimeter2]....................

Renal Failure Essay Example | Topics and Well Written Essays - 2500 words

Renal Failure - Essay Example Countless studies have linked diet, lifestyle and habits to several forms of kidney Disease. Diet has been a strong linked to development of common adult ailments (Health and Home, 2002). According to International Federations of Kidney Foundations and International Society of Nephrology (Sun-Star, 2007), one (1) of every (10) adult may possibly suffer from renal disease. In United States, Chronic Kidney Disease prevalence has been continuously rising over the past years; researchers at John Hopkins Bloomberg School of Public Health (2008) say. In their investigation, it was explored in the overall prevalence of Chronic Kidney Disease (CKD), there have been around 10% increase of population suffering it during 1988-1994; while 13% during 1999-2004. does not experience any symptoms and therefore may be unaware that they have it, but there are simple tests which can detect the condition. If CKD remains undetected, it can progress to established kidney failure requiring dialysis or transplantation, very poor health and in some cases early death (CDC, 2009). This study aims to document the live experiences of patients who are suffering from renal failure, at the same time, design a health care plan for the patients. By doing so, the appropriate care of the health care team will be improved in such a way that it could assist patients and their loved ones recognize as well as cope with the challenges they confront in combating kidney failure. With positive outlook, determination and education, health care team will hopefully be one with the patient and family. Review of Related Literature Presented in this section are the various readings and findings of different authors in order to provide necessary background and framework of the study, most especially on methodology . According to the American family physician that chronic kidney disease are the major health problem that are increasingly throughout the world. In which this problem could lead to heart diseases if not treated earlier and because a lot of people don't know the real definition of kidney problem and do not enough facilities in the Lived Experiences 3 detection and evaluation of the disease (Johnson, et.al., 2004). Sometimes people are unaware that their kidneys are not functioning properly. This is because kidneys are very adaptable. Even when most of a kidney is not working the remaining portion will increase its activity to compensate for the loss, (Gerry, 2006). Some cases of renal disease has no symptoms which can lead to chronic complication or serious health problem; although there are guidelines for early identification of the disease that will help people save their lives in a way of early detection. The guidelines tend to offer some simple test for CKD if they have risk factors like diabetes mellitus, high blood pressure, cardiovascular disease, and a family history of kidney failure (NICE, 2008). Data from the United States Renal Data System (USRDS) indicated that there has been an increase of 104% in the prevalence of chronic renal failure (CRF) between the years

Significance Of Arctic Setting In Frankenstein English Language Essay

Significance Of Arctic Setting In Frankenstein English Language Essay The arctic setting that Mary Shelley uses in her novel, Frankenstein, after the monster escapes was essential in understanding the feelings of Victors monstrous creation. The arctic is known for its isolated conditions with intolerable weather. When Victor Frankensteins creation sees the rejected reactions from other living beings he escapes to the separate himself from mankind. The romantic period of when Mary Shelley wrote her novel escaping to isolated places such as the arctic, was known as a spiritual reunion. The arctic represented isolation and pain in Victor Frankensteins creation. Mary Shelley used the arctic setting to correlate the monsters internal feeling with its environment that surrounded him. She used the arctic to symbolize Victors creation as empty, unaided, isolated, and confused. The arctic is still considered to be an intolerable place where it is much harder to live especially in the monsters scenario. Mary Shelley describes the struggles the monster was dealing with in regards to other human beings. She writes The whole village roused; some fled, some attacked me, until, grievously bruised by stones and many other kinds of missile weapons, I escaped to the open country, and fearfully took refuge (70-71). The monster was dealing with external problems from the horrific reactions from the villagers. In addition to being abandoned by his creator the monster felt abandoned from all of mankind. Mary Shelley used the arctic as the setting for where the monster fled after being created by Victor to indicate the maturation process of the monster and to give a deeper insight into his character. He was tortured by the reactions of the villagers and the seasonal process that nature goes through. In arctic conditions it becomes nearly impossible to live off of natural nutrients due to harsh temperatures. Victors creation explains, Food, however became scarce, and I often spent the whole day searching in vain for a few acorns to assuage the pangs of hunger (Shelley 70). This was a significant setting because the monster was clueless about his surroundings and the arctic created a deeper hole in his search for identity. In the article Embodied Settings in Frankenstein by David Ketterer, it explains that the arctic setting in Mary Shelleys novel was used in a metaphoric way: If the Alps and their Arctic setting analogue appear to be the monsters natural habitat that is surely because his being is bound up with the awe and terror provoked by such environments (Ketterer 548) Victors creation was a symbolism of the arctic. Mary Shelley used the arctic setting to represent the lonely soul of the creature. The arctic is lacking natural resources like the creature is lacking companionship. The monster describes the painful experiences he encountered in the winter seasons while in search for dry land and shelter to protect him from the snow, or as he describes it, the white ground; Romanticists looked at spiritual renewal as getting away into an isolated environment, and Mary Shelley used that Arctic setting to show the renewal the monster endured. In the article The Political Geography of horror in Mary Shelleys Frankenstein by Fred Randel, he writes Mary Shelley inherited a usage of the Gothic that, in contrast with the expectations of many modern readers, fore grounded history and geography (465). Mary Shelley showed Victors creations emotions when she wrote A great fall of snow had taken place the night before and the fields were of one uniform white, the appearance disconsolate and I found my feet chilled by the cold damp substance that covered the ground (70). Mary Shelley is showing the inscrutable feelings of the monster and how the arctic setting was essential to understand the renewal process of the monster. The monster feels the cold and bitter feelings that arctic is releasing. The arctic was important for the character development of the monster. Mary Shelley shows his maturation process through the story the monster tells Victor. She describes his innocence to his surroundings and the struggles that accompanied these mysterious altercations of the seasons he endured. The famine of food created hardship for the monster while the actions of the villagers against him created unknown feelings of disorder. Mary Shelley used the arctic in a metaphoric way in representing the lonesome the monster felt. The arctic is usually deceived as an uncomfortable surrounding and Victors creation resorted to the arctic for the opposite, comfort. Mary Shelley used the arctic to metaphorically represent Victors creation. The monster was a lonesome soul lacking companionship just like that arctic lacks food and nutrients. Work Cited Ketterer, David. Embodied Settings in Frankenstein. Science Fiction Studies 32.3 (2005) : 548. JSTOR. Web. 28 Feb. 2010. http://www.jstor.org/stable/4241397 Randel, Fred. The Political Geography of Horror In Mary Shelleys Frankenstein. ELH 70.2 2003 : 465-491. JSTOR. Web. 28 Feb. 2010 http://www.jstor.org/stable/30029885 Â  Shelley, Mary. Frankenstein. New York: W.W. Norton Company, 1996. Print.

Noahs Ark vs. Jurassic Park :: Biology Essays Research Papers

Noah's Ark vs. Jurassic Park As the human population of the world continues to increase the flora and fauna of the planet are becoming an increasingly smaller part of the picture. Environmentalist and conservationists all over the globe are working hard to find strategies and methods for the preservation of disappearing creatures and species. An increasingly popular idea that would allow for great benefits in the field of conservation became apparent in 1996 with the cloning of sheep by the name of Dolly. Since then the scientific debate on the relationship between cloning and conservation has ensued. Although the answer to that question remains on the horizon, cloning for helping endangered species is a process that may become a frequent procedure in the future. When one thinks of cloning generally the first idea that pops into your mind is a large tube filled with some creature attached to a lot of tubes. Cloning actually, is a much more complicated and difficult process. Cloning, scientifically defined is, "asexual reproduction or as the creation of genetically identical individuals" (1). In the cloning process the DNA of one individual creature is "copied" into the cell, or embryo, of another and then that embryo develops into a baby and proceeds down the process of birth and embryological development. Currently, many scientists believe that if the DNA of endangered species is rescued and preserved that the DNA of that species could undergo the cloning process and thus produce a clone of that species. The results of this cloning process would be enormous or it "will open a new front in the battle to preserve the Earth's biodiversity by cloning endangered gorillas, tigers and other rare species" (2). Cloning of endangered species would be a monumental achievement for the scientific community. Many people when they think of cloning picture sometime weird science fiction creature in a test but in real life the idea of cloning could be a valuable tool for the environmental community and it would be a process could vastly improve the current situation of endangered species. Part of the reason why the cloning process is so highly revered is because of the level of complexity and the multiple details that must develop accordingly for the process to work. Robert P. Lanza says, "It is a deceptively simple-looking process. A needle jabs through the protective layer surrounding an egg. A research assistant sucks out the egg's nucleus, which contains the majority of a cell's genetic material, leaving behind only a sac of gel called cytoplasm.

Critique an Article

Introduction In order to benefit and fully understand what exactly a certain article is researching or auguring it needs to be analysed and critiqued to the point of understanding so to demonstrate this, the author of this material is going to analyse and critique the article, Factors influencing the food choices of Irish children and adolescents: a qualitative investigation. To achieve this in a well structured, well laid out piece of literature the author will use a checklist devised to critique a qualitative research study, in which it will be clear to recognise under appropriate headings.To conclude this assignment the author will mention any difficulties or problems that occurred through out the assignment. Title The title is very short but clearly states what the article is about. Parahoo (2006) mentions that the title should indicate the exact area of study and mention the population from who the information was collected. The title also is very informative with regards to the research method used as it's clearly stated. Author As indicated on the article, the authors have well recognisable qualifications.Amanda Fitzgerald is from School of Psychology, national University of Ireland, Galway, and is also corresponding author. Caroline Heary is also form School of Psychology, National University of Ireland, Galway. Elizabeth Nixon is from School of Psychology, Trinity College Dublin, Ireland and Collete Kelly is from the School Of Health Sciences, National University of Ireland, Galway, Ireland. Abstract There is an abstract as such but titled summary which acts as the same purpose, as Parahoo (2006) states that an abstract is a short summary of a study.The research problem being that there is relatively little research done to explore the factors that influence the food choices of children and adolescents form their point of view is mentioned in this summary. The methodology of this study uses focus group discussions of 29 young people, in different age g roups, ages ranging from 9-10, 13-14 and 16-18 years. From these discussions an inductive thematic analysis identified three key factors influencing food choices.Parahoo (2006) suggests that the abstract should mention the main findings which are referred to in this summary as, that their were developmental differences between children’s and adolescents perceptions of factors influencing food choice. Statement of the Phenomenon of Interest The phenomenon of interest is stated in the introduction as the author clearly mentions that this study was to understand the processes used to make food choices from the participants perspective.The researcher has mentioned that few studies have set out to qualitatively examine young people's own views so this is an indication that the researcher wants to explore the participants own experiences through a qualitative method i. e. Focus groups. The philosophical underpinnings are clearly that the author has identified that few qualitatively studies have been carried out to examine the factors influencing the food choices of Irish children and adolescents from their own perspective. Also the researcher wants to access how they interact with others in the environment about food choices.Purpose The purpose of this study was evident from the title and clearly explained in-depth through out the article. The purpose of this study was to explore differences between children’s and adolescents’ views regarding influences on their food choices. The researcher doesn't go too much into detail about how this research helps nurses but does mention that this study has useful implications for clinicians. Overall the use of the information obtained in this research would be of use to nursing in nutrional education for similar each groups in hospital.Method The researcher obtained the information from the participants using semi-structured interviews to guide focus group discussions. The use of focus groups is very suitab le in this qualitative study. Parahoo (2006) mentions that choosing focus groups as apposed to individual interviews helps to get more in-depth information from the participants' experience about a certain topic, it aids the researcher to get a wider view from all different experiences and leads participants to freely discuss and share their ideas.The use of focus groups enabled all the participants to share their own experiences and opinions about the phenomenon. Sampling The researcher mentions the participants selected and states the ratio of males and females and gives the age groups. The location or venue isn't mentioned at all. Purposive sampling is indeed used and as Parahoo (2006) points out that researchers use this type of sampling as they select the most appropriate candidates to be able to answer the questions being asked.The questions being asked were aimed at children and adolescents so the aged group selected was between 9-18 years, so they were suitable. Data Collect ion The data collected is focused on human experiences as the researcher mentions the use of focus groups which were semi-structured to guide the participants to share their own ideas. The focus group discussions were tape recorded, transcribed and double- checked for accuracy. Ethical approval was obtained from the research ethics committee and parents had to provide written consent as well as consent from the participants themselves.The researcher didn’t mention if data saturation had occurred but did mention that following the inductive analysis procedure, categories emerged following repeated readings of the transcripts which identified key concepts. The researcher explains how the data was obtained using an inductive analysis procedure that were transcribed resulting in emerging categories. Data Analysis The focus group discussions were analysed separately and the researcher explains that an inductive thematic analysis was used and explains what this method does.The rese archer has remained true to data by using semi-structured interviews which are used in qualitative research and also by using direct quotes which in-riches the data. The researcher does not give direct headings and emphasis to the creditability, audibility and fittingness in the article but they are evident from reading the article. Credibility According to Parahoo (2006), credibility is when a study carried out shows the participants ideas from their perpespectives about the research.The participants do recognise the experience as their own as they explain their answers using scenarios. Audibility Audibility refers to the data produced in a certain study that enables readers to understand the original methods and conclusions used in previous research ( Parahoo, 2006). The reader can follow the way the researcher has carried out the research as the researcher sticks to the qualitative method used to collect information from the participants, through semi-structured interviews.The re searcher does mention that the research process used is that of a qualitative process. Fittingness The findings can be applied to people outside the study as the researcher mentions that this study gives a detailed account of young people's food choices from their view points so this information can be used to help other people in understanding. The results can benefit parents along with health care workers, working with that age group, towards building nutrition among children and adolescents.The researcher clearly states that the data in this research piece does support the compatible use of an integrated theoretical framework as its based on the Social Cognitive Theory (SCT) and ecological theory so young people's food choices can be explained, as the researcher wanted to understand how the participants engaged with others in their environment about food choices. Findings The reader can gather that the findings are broken down into three different categories, intra-individual fac tors, intra-familial factors and extra-familial factors. The researchers use of semi-structured interviews long with direct quotes containing scenarios made the data more rich. In the introduction great amount of detail is given to mention about other research and interventions. The researcher highlights that the results from this study helps in previous research. Also mentioned was that other research had found similar ideas among young people. Conclusions, Implications and Recommendations It provides a clear conclusion from the in-depth data received from young people about their perceptions of factors influencing their food choices and gives us an understanding of differences between the age groups preferences.The researcher does state that the findings are useful in passing on information to nutrition education providers with regards to the factors that do effect children and adolescents food choices. As mentioned previously, its not out rightly stated in this study that the fin dings are made explicit to nurses but one could argue that the findings can be used by a registered nurse in providing nutritional care to this age group. Conclusion This article was very informative and the researcher did make clear from the very beginning, the research method used.This research study was made more rich and descriptive through the use of direct quotes to describe scenarios. This research study had many strengths as well as limitations. The format in which the summary was presented wasn't very appropriate as its font size and style made it hard to read. Also the researcher failed to mention the exact location and venue where the focus groups took place, along with that, the ratio of girls to boys wasn’t equal, 13 boys to 16 girls.No opt out option was mentioned to the participants. The researcher did use explanations very well as certain terms were defined but too much detail was given in the introduction and discussion. Also too much referencing was used in one paragraph in the introduction. Overall this assignment made me aware of the procedure and method involved in critiquing an article and helped me understand the research process in general.

Night by Elie Wiesel Essay

Night by Elie Wiesel. Born in the town of Sighet, Transylvania, Eliezer is a young and strong –minded individual, but doubts his religious beliefs. He and his family were taken from their home in 1944 to Auschwitz concentration camp, which was known as the Holocaust. Eliezer, being a dynamic character had many thoughts and feelings towards life and his father. His thoughts and faith always changed (Wiesel 33). But, he always tried to stay strong, hopeful and determined for himself and his father. While in Auschwitz, Elie thought alot about how his life was changing (38). He went from a 13-year old deeply observant and very religious teen, into a wishing, confused and doubtful individual. Being dynamic changes you as a person and it affected the mood and tone of the story. Eliezer’s appearance wasn’t really mentioned in the story. But you could imagine what happened with eating just bread crusts, soup, and sometimes nothing to drink (54). When Eliezer broke his foot, he still hopped for survival along with his frail father (78). His belief and faith subsided the longer they stayed in the camps. Others lost complete faith in their God that they trusted (66). It was every man for himself and they would do anything to stay alive, even kill. While staying in the camps Eliezer sometimes decided between life and death, to escape the hurt, torture, and pain. Once they were finally released free, no one thought of revenge (115). All they wanted was to eat and when they were no longer hungry, they still didn’t think of revenge. Freedom and food were the only things left to think about (113). Eliezer is a young and strong-minded individual, but doubts his religious beliefs. Being a dynamic character means that you aren’t sure about decisions and your mind is always changed. When Eliezer found the strength to get up and look at himself in the mirror, the gaze that looked back at him never left him.