Tuesday, April 7, 2020

Analysis of Philo Henyo free essay sample

We first heard of Pinot Henry from a popular Manila noontime TV show that excites audience and makes them think Like scientists or even geniuses. The Idea is for the player to give within the allowed time the answer for the word he has to guess. And yes indeed, this is not just as simple as shouting random words until you hit the jackpot. It Is more than that that makes the winner, Indeed genius. How does one do it? He thinks in terms of Kingdom, Phylum, Class, Order, Family, Genus, Species, and classifying them from the most general to specific until they come up with the right word. And yes, in order to be successful In this game, as mentioned, you cannot say random words and expect that guessing would be easy. One must have a good knowledge of taxonomies, or better yet defining words intentional and extensional or processes wherein you are sorting out the knowledge from the more general to specifics. We will write a custom essay sample on Analysis of Philo Henyo or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The person who guesses, and the person who states whether It Is 00. Hind, or Pawed must have some kind of an idea or concept to what the word really means.And through this, the game unravels and the players starts to mention properties or traits of the word in order to be more familiarized with word being guessed The best way to explain what is going on in this guessing game is through extensional and intentional knowledge. Two of the words that were Introduced to me In taking Phil 1 are extensional and intentional. If someone asks you, What is blue? the tendency is you could point to the sky, a blue bag, or maybe, a car in that color. And from there, you may have sufficiently defined blue.To give and Intentional definition Is to define a word or phrase in terms of other words, as a dictionary does and on the other hand, to give n extensional definition is to point examples, as what adults do when they give out new concepts to young children. It Is a way of telling someone what you mean by a concept. And how you best describe words is using crossfire of intentional and extensional communication to nail down a concept. Now this has been one of the Tao, baggy, happy, Lugar, or panegyric, which basically gives us an overall grasp of words of course relating to Filipino as acquired from the games title.I have realized over the span of watching numerous game episodes and playing it, hat, Pinot Henry does follow a pattern and a set of steps but at times may Just be out of pure luck as one right away guesses the word without even going over the steps. Just like that of defining words, after going over the category of the word, the next thing the player does is to give a set of characteristic which both of them should have a prior knowledge of. During the past year, we had the fun of playing Pinot Henry in an Anthropology 1 class.Of course, it is not as easy as using the general terms such as pinto, pack, appeal etc. , (words which we encounter everyday) cause in order for our professor to prove that we really have understood the lessons and was able to familiarize ourselves with the new words and concepts such as Neanderthals, Photocopiers, etc. , he made us play this game. Without the prior knowledge, we wont be able to cite its categories, further expound on its characteristics, and wont be able to say a word due to a fact that the word has not yet been included in ones extensional definition of the concept.One, who didnt really study, will make a fool out of himself, Just cause of playing this game. In class, during our Phil Henry, the player must guess the word, Takeaway. On the process of the game, one of the best players in class went over the technique of going from the most general category all the way down to the word. Unfortunately in the end, he wasnt able to guess it in the given timeshare. In analyzing the reasons why although, it can be a simple word, which many of us Filipinos are aware of. It is given for a fact that we have knowledge that it is indeed a place.But as more and more questions are being asked, and the ideas of both players way of thinking start o differ from each other, that is when the problem arises which makes it harder to guess as saying Pawed when it can indeed be 00 would make a big significance to how the player whos guessing thinks. The game doesnt only depend on ones concept of the word. When questions are being asked, different answers and perspectives will arise which can also lead to confusion and sometimes even deviate you from guessing the correct word. This game comprises of two roles, to which both are significant.These are the one who guesses the word, and the one who affirms ND rejects, or utter words on the given set of questions pertaining to the word and in any given game situation, there should be team effort and mutual understanding to become a winner. The complexity of this game has led me to the conclusion that this game depends so much on the knowledge of both extensions and intentions. Though we have established that extensions give the player an easier route in defining the word, we must not say that intension is any less important.It is Just that we choose this since citing down the categories or examples below it. To have a complete understanding f the meaning of a concept, you use the intension, which does the person answering 00, Pawed, or Hindi do initially. The task is for both parties to have a simple, clear, and precise, concept of the word. One of the reasons why it is complex happens when we are presented with words with more than one meaning; such as say for example the word orange.It can be narrowed down to the color, or the fruit but then again this is where confusion for both players begins which makes this game really challenging. Although I have a thought that people who invented this game should have named his game Phil Henry instead of Pinot Henry, I have also realized that in order to play this game, two people should both have a common descent or a common understanding of words in order to become the winner, such as by being both Filipinos, sharing the same culture, environment, and beliefs.

Monday, March 9, 2020

Jacob Lawrence Biography

Jacob Lawrence Biography The Basics: History Painter is an appropriate title, although Jacob Lawrence himself preferred Expressionist, and he was certainly best-qualified to describe his own work. Lawrence is one of the best known 20th-century African-American painters, along with Romare Bearden. While Lawrence is often associated with the Harlem Renaissance, its not accurate. He began studying art half a decade after the Great Depression terminated the heyday of that movement. It can be argued, though, that the Harlem Renaissance brought into being the schools, teachers and artist-mentors from whom Lawrence later learned. Early Life: Lawrence was born on September 7, 1917 in Atlantic City, New Jersey.After a childhood marked by a series of moves, and the separation of his parents, Jacob Lawrence, his mother and two younger siblings settled in Harlem when he was 12. It was there that he discovered drawing and painting (on discarded cardboard boxes), while attending an after-school program at Utopia Childrens Center. He kept up painting when he could, but was forced to drop out of school to help support the family after his mother lost her job during the Great Depression. His Art: Luck (and the persistent help of sculptor Augusta Savage) intervened to procure Lawrence an easel job as a part of the W.P.A. (Works Progress Administration). He loved art, reading and history. His quiet determination to show that African Americans, too, were a major factor in the history of the Western hemisphere despite their conspicuous absence in art and literature led him to embark on his first important series, The Life of Toussaint LOuverture. 1941 was a banner year for Jacob Lawrence: he broke the color barrier when his seminal, 60-panel The Migration of the Negro was exhibited at the prestigious Downtown Gallery, and also married fellow painter Gwendolyn Knight. He served in the U.S. Coast Guard during WWII and returned to his career as an artist. He landed a temporary job teaching at Black Mountain College (in 1947) at the invitation of Josef Albers who became both an influencer and friend. Lawrence spent the rest of his life painting, teaching and writing. He is best known for his representational compositions, full of simplified shapes, and bold colors and his use of watercolor and gouache. Unlike nearly any other modern or contemporary artist, he always worked in series of paintings, each with a distinct theme. His influence, as the visual artist who told stories of the dignity, hopes and struggles of African Americans in American history, is incalculable. Lawrence died on June 9, 2000 in Seattle, Washington. Important Works: Toussaint LOuverture (series), 1937-38 Harriet Tubman (series), 1938-39 Frederick Douglass (series), 1939-40 The Migration of the Negro (series), 1941 John Brown (series), 1941-42 Famous Quotes: I would describe my work as expressionist. The expressionist point of view is stressing your own feelings about something.  My belief is that it is most important for an artist to develop an approach and philosophy about life - if he has developed this philosophy, he does not put paint on canvas, he puts himself on canvas. If at times my productions do not express the conventionally beautiful, there is always an effort to express the universal beauty of mans continuous struggle to lift his social position and to add dimension to his spiritual being.When the subject is strong, simplicity is the only way to treat it. Sources and Further Reading: Falconer, Morgan. Lawrence, Jacob Grove Art Online. Oxford University Press, 20 August 2005. Read a review of Grove Art Online.Lawrence, Jacob. Harriet and the Promised Land. New York : Aladdin Publishing, 1997 (reprint ed.). (Reading level: Ages 4-8) This wonderfully illustrated book, along with The Great Migration (below), are excellent means with which to introduce budding art enthusiasts to Jacob Lawrence.Lawrence, Jacob. The Great Migration. New York : Harper Trophy, 1995. (Reading level: Ages 9-12)Nesbett, Peter T. (ed.). Complete Jacob Lawrence. Seattle : University of Washington Press, 2000.Nesbett, Peter T. (ed.). Over the Line: The Art and Life of Jacob Lawrence.Seattle : University of Washington Press, 2000. Films Worth Watching: Jacob Lawrence: An Intimate Portrait (1993)Jacob Lawrence:The Glory of Expression (1994) Names beginning with L or Artist Profiles: Main Index. .

Friday, February 21, 2020

How Can Lufthansa Airlines Improve Their Customer Satisfaction in Essay

How Can Lufthansa Airlines Improve Their Customer Satisfaction in Comparison with Singapore Airlines - Essay Example The aim of this research is to ascertain the factors that have an influence on customer satisfaction. The study focuses on the procedure based on which Lufthansa Airlines can improve customer satisfaction as compared to Singapore Airlines in terms of greater sustainability. In this respect, the research emphasizes identifying the reasons that are accountable for customer dissatisfaction based on the study of annual reports of the respective companies and other relevant theories. Service quality is one of the vital factors based on which the airline industry is able to conduct operations in a sustainable manner. The major challenge faced by the airline industry is to provide excellent service and value to its passengers. The quality of service provided by the business should be in accordance with the demand of the customers with the intention of ensuring utmost satisfaction of customers. Rapid development in the airline industry and the increase in competition in both developed as wel l as developing economies have made it essential for airline companies to evaluate the services provided by them. Major problems faced by the airline industries are regarding managing the fluctuating demands because of the introduction of various low-cost airlines providing similar kind of services. Other challenges are maintaining the superior quality of service in order to maintain customer loyalty. According to the annual review of IATA in the year 2014, it has been identified that the airline industry has been performing operations in an effective manner. In 2013, it has been estimated that passengers and cargo of around 3.3 billion and ‘50 million metric tons’ respectively have been transported efficiently. In addition, the industry has been successful in improving the global GDP condition. The industry is also identified to be serving over 50,000 routes.

Wednesday, February 5, 2020

Book Review on a Non-Fictoion book related to violence Essay

Book Review on a Non-Fictoion book related to violence - Essay Example David Crowe made a serious attempt to collect information on all aspects of Oskar Schindler’s life, be it family, business, or political and what evolved is the description of this controversial character not by subjective emotions but backed by documents. Crowe did prodigious research, reading everything, speaking to everyone, examining each document, actively collecting historical records, and in the end came to gather more information about Oskar than Oskar himself might be aware of. While exploring individual life of Oskar, the historian also gave vivid description of the wider political and economic environment under which he worked. The historian remains in touch with the Spielberg’s masterpiece and Keneally’s touching novel and gave inputs, which were not hitherto presented by them due to their limitations as historian. Crowe aptly performs the role of a historian with his readers on this personality, informing them not only of the story but also of source s of each measured judgment. David Crowe went into depth into each and every aspect of the shaping up of a character of Oskar based on as many official and personal documents which he can gather actively by various sources, hitherto unpublished. It is a book, which in the process of presenting the biography of a personality also gives numerous account of the social, economic, and political environment of the Germany during the period of Holocaust. The book is an attempt to synchronize the life history or rather various emotions through which Oskar underwent to the circumstances surrounding him. This book is a definitive treatise on Oskar Schindler, who despite all his shortcomings, underwent a transformation and became the single largest German rescuer of Jews. David Crowe has studiously and meticulously presented the saga or plight of a man, who started by being targeted only with himself but ended up becoming a messiah for many Jews in true term. It is a must for

Tuesday, January 28, 2020

Corn Cob Leaves Biomass Biosorption Industrial Wastewater Environmental Sciences Essay

Corn Cob Leaves Biomass Biosorption Industrial Wastewater Environmental Sciences Essay Corn cob and corn leaves waste is an affordable adsorbent for the removal of industrial contaminants like heavy metals. The present research work is designed to characterize the biosorption of Cr (III) and Cr (VI) from industrial waste using Corn cob and corn leaves waste biomass. Batch experiments will be carried out for the sorption of Cr (III) and Cr (VI) by using Corn cob, as well as entrapment in Na-alginate polymeric matrix. The effect of important operational parameters such as initial pH, initial metal concentration and contact time will be evaluated. Physicochemical parameters will be determined before and after biosorption and conditions will be optimized. Metal contents before and after biosorption will be analyzed using atomic absorption spectrophotometer (AAS). The morphology of the surface of Corn cob and corn leaves biomass will be observed with a scanning electron microscope (SEM). Results will be analyzed using mean  ± and standard error of mean, to determine the p roper sorption the data will be fitted to equilibrium and kinetic model. INTRODUCTION The treatment of high volumes of wastewater containing low concentrations of pollutants is becoming increasingly important as discharge regulations become more stringent. The treatment and disposal of liquid effluents from leather tanning and textile industries are a serious problem due to their Cr(III) contents (Kotas et al.2000). Although Cr(III) is less toxic than Cr(VI), a cancer-causing agent, Cr(III) may be a toxic metal when present at high concentrations (Blasiak et al.2000). Since heavy metal ions are not biodegradable, they are usually removed from the contaminated water by physical or chemical treatment processes. Conventional treatment methods (precipitation, membrane separation, ion exchange, reverse osmosis and electrolysis etc.) are not often feasible because of high treatment cost, the need for continuous input of chemicals, and the production of toxic sludge (Akar et al. 2006). However these techniques proved ineffective in remaining within Cr(III) discharge limits (1-2mg/dm3) of industrial effluents (Geundi et al 1997). As a result, the use of alternative treatments such as ion exchange, carbon adsorption, membrane filtration, electroseparation, and bioaccumulation has been applied in polishing these effluents (Alves et al 1993). However, such processes may be ineffective and extremely expensive. Bioadsorption, on the other hand, is an emerging technology that also works to overcome the selectivity disadvantages of traditional decontamination pr ocesses. (Unz et al 1996). Biosorption technology is based on the interaction between toxic metals and the binding functional groups on the cell wall structure of the microorganisms or plants. These are mainly composed of polysaccharides, lipids and proteins. Biosorption has recognized as a potential alternative method over the conventional separation techniques. This process utilizes live, dead, pretreated and immobilized forms of biological cells like bacteria, fungi, yeast, algae and agriculture waste as sorbent materials (Gadd, 1990). Removal of heavy metals from wastewaters through adsorption, particularly biosorption, has emerged as an alternative technology. A variety of biomaterials and microorganisms have been explored by researchers for biosorption and bioaccumulation including fungi and agriculture waste materials (Fourest et al 1994). Biosorption may occur actively through metabolism or passively through some physical and chemical processes. A biosorbents immobilization procedure is necessary for the industrial application of biosorption [7].Immobilization of the agriculture waste in some suitable matrix like silica gel, polyurethane or alginate has proved useful in industrial application. The physical entrapment of the agriculture waste inside a polymeric gel in the form of beads is one of the most widely used techniques for immobilization which not only tackles the above problem but also provides mechanical strength, rigidity and porosity characteristics to the biosorbents. Further, the metal can be reco vered from the loaded beads using appropriate desorption techniques, thereby, minimizing the possibilities of environmental contamination (Lu et al 1995). Everywhere in the world corn are cultivated as important crop. Corn is Pakistans third most important cereal after wheat and rice. The use of corn in Pakistan for direct human consumption is declining, but its utilization in the feed and wet milling industry is growing at a much faster pace than anticipated. Currently, sufficient corn is grown in Pakistan for domestic needs and there is neither a surplus nor deficit in corn grain supplies. Currently except potato maize is the most profitable, stable and dependable agricultural crop in Pakistan. (Tariq et al 2010). Corn cob and corn leaves are one of the most plentiful and important agriculture waste in maize cultivation accounts for up to 50% of the total corn seed production. Immature cobs are boiled and eaten as corn on the cob or the grains may be removed and eaten as vegetable, or it may be canned. More mature cobs are roasted. The cobs are used for fuel, smoking pork products, and are also as source for charcoal (Sultana et al. 2007). , c The present study is designed to study the usefulness of immobilized corn cob and corn leaves agriculture waste biomass as a biosorbent for Cr(IIl) and Cr(Vl) from aquous industrial waste from tanneries to evaluate the effect of different experimental variables like pH, initial metal concentration and contact time. After biosorption the morphology of the surface of corn cob and corn leaves biomass with a scanning electron microscope (SEM) will be observed. AIMS AND OBJECTIVE: The present study is aimed: To investigate the potential of dried corn cob and corn leaves biomass and entrapment of biomass in Na-alginate polymeric matrix. To study the biosorption of Cr(III) and Cr(VI) from aqueous solution. To observe the effect of different conditions such as pH, initial metal concentration and time required for establishment of equilibrium. To evaluate the various methods for improving the metal ion removal capacities of corn cob and corn leaves. REVIEW OF LITERATURE: Krishna et al. (2005) studied the possibility of using moss (Funaria hygrometrica), immobilized in a polysilicate matrix as substrate for speciation of Cr(III) and Cr(VI) in various water samples has been investigated. Experiments were performed to optimize conditions such as pH, amount of sorbent and flow rate, to achieve the quantitative separation of Cr(III) and Cr(VI). During all the steps of the separation process, Cr(III)was selectively sorbed on the column of immobilized moss in the pH range of 4-8 while, Cr(VI) was found to remain in solution. The retained Cr(III) was subsequently eluted with 10 ml of 2 mol là ¢Ã‹â€ Ã¢â‚¬â„¢1 HNO3. A pre-concentration factor of about 20 was achieved for Cr(III) when, 200 ml of water was passed. The immobilized moss was packed in a home made mini-column and incorporated in flow injection system for obtaining calibration plots for both Cr(III) and Cr(VI) at low ppb levels that were compared with the plots obtained without column. After separat ion, the chromium (Cr) species were determined by inductively coupled plasma mass spectrometry (ICP-MS) and flame atomic absorption spectrometry (FAAS). The sorption capacity of the immobilized moss was found to be 11.5 mg gà ¢Ã‹â€ Ã¢â‚¬â„¢1 for Cr(III). The effect of various interfering ions has also been studied. The proposed method was applied successfully for the determination of Cr(III) and Cr(VI) in spiked and real wastewater samples and recoveries were found to be >95%. Anjan et al.(2007). analysed Biosorption of Cr(VI) using native strains of cyanobacteria from metal contaminated soil in the premises of textile mill. Biosorption reported as a function of pH (1-5), contact time (5-180 min) and initial chromium ion concentration (5-20 mg/l) to find out the maximum biosorption capacity of alginate immobilized Nostoc calcicola HH-12 and Chroococcus sp. HH-11. The optimum conditions for Cr(VI) biosorption are almost same for the two strains (pH 3-4, contact time 30 min and initial chromium concentration of 20 mg/l) however, the biomass of Chroococcus sp. HH-11 was found to be more suitable for the development of an efficient biosorbent for the removal of Cr(VI) from wastewater, as it showed higher values of qm and Kf, the Langmuir and Freundlich isotherm parameters. Both the isotherm models were suitable for describing the biosorption of Cr(VI) by the cyanobacterial biosorbents. Gao et al. (2008) analysed the removal of Cr(VI) from aqueous solution by rice straw, a surplus agricultural by product . The optimal pH was 2.0 and Cr(VI) removal rate increased with decreased Cr(VI) concentration and with increased temperature. Decrease in straw particle size led to an increase in Cr(VI) removal. Equilibrium was achieved in about 48 h under standard conditions, and Cr(III), which appeared in the solution and remained stable thereafter, indicating that both reduction and adsorption played a part in the Cr(VI) removal. The increase of the solution pH suggested that protons were needed for the Cr(VI) removal. A relatively high level of NOà ¢Ã‹â€ Ã¢â‚¬â„¢3 notably restrained the reduction of Cr(VI) to Cr(III), while high level of SOà ¢Ã‹â€ Ã¢â‚¬â„¢24 supported it. The promotion of the tartaric acid modified rice straw (TARS) and the slight inhibition of the esterified rice straw (ERS) on Cr(VI) removal indicated that carboxyl groups present on the biomass played an i mportant role in chromium remediation even though were not fully responsible for it. Isotherm tests showed that equilibrium sorption data were better represented by Langmuir model and the sorption capacity of rice straw was found to be 3.15 mg/g. Li et al. (2008) investigated the comparative study on adsorptions of Pb(ll) and (CrVl) ions by free cells and immobilized cells of Synechococcus sp. ,in which different aspects including Zeta potential of the cells, the influence of pH, temperature and initial concentration of metal ions, as well as adsorption kinetics and mechanism were referred. The lyophilized free cells have a surface isoelectric point at pH 3, and the correlative experiment indicates that there is an electrostatic adsorption feature of Cr(Vl) and Pb(ll). The immobilization of the free cells by Ca-alginate does not significantly modify the adsorption features of the biosorbent. The absorption processes of Cr(Vl) and Pb(ll) on both free and immobilized cells are apparently affected by pH and the initial concentration of metal ions in the bulk solution, but are much weakly affected by temperature in the test range of 10à ¢- ¦C-50à ¢- ¦C. The slow course of biosorption follows the first order kinetic model, t he adsorption of Pb(ll) obeys both Langmuir and Freundlich isotherm models, while the adsorption of Cr(Vl) obeys only Freundlich model. FT-IR results indicate that carboxylic, alcoholic, amide and amino groups are responsible for the binding of the metal ions, and reduction of Cr(lll) to Cr(Vl) takes place after Cr(Vl) adsorbs electrostatically onto the surface of the biosorbents. Park et al. (2008) analysed agricultural biowastes such as banana skin, green tea waste, oak leaf, walnut shell, peanut shell and rice husk, banana skin screened as the most efficient biomaterial to remove toxic Cr(VI) from aqueous solution. X-ray photoelectron spectroscopy (XPS) study revealed that the mechanism of Cr(VI) biosorption by banana skin was its complete reduction into Cr(III) in both aqueous and solid phases and partial binding of the reduced-Cr(III), in the range of pH 1.5-4 tested. One gram of banana skin could reduce 249.6 ( ±4.2) mg of Cr(VI) at initial pH 1.5. Namely, Cr(VI)-reducing capacity of banana skin was four times higher than that of a common chemical Cr(VI)-reductant, FeSO4.7H2O. To diminish undesirable/serious organic leaching from the biomaterial and to enhance removal efficiency of total Cr, its powder was immobilized within Ca-alginate bead. The developed Cr(VI)-biosorbent could completely reduce toxic Cr(VI) to less toxic Cr(III) and could remove alm ost of the reduced-Cr(III) from aqueous phase. On the basis of removal mechanisms of Cr(VI)and total Cr by the Cr(VI)-biosorbent, a kinetic model was derived and could be successfully used to predict their removal behaviors in aqueous phase. In conclusion, our Cr(VI)-biosorbent must be a potent candidate to substitute for chemical reductants as well as adsorbents for treating Cr(VI)-bearing waste waters. Alez et al. (2009) investigated the biosorption of Cr(III) onto packed columns of Agave lechuguilla using an advective-dispersive (AD) model and its analytical solution. Characteristic parameters such as axial dispersion coefficients, retardation factors, and distribution coefficients were predicted as functions of inlet ion metal concentration, time, flow rate, bed density, cross-sectional column area, and bed length. The root mean square error (RMSE) values 0.122, 0.232, and 0.285 corresponding to the flow rates of 1, 2, and 3 (10à ¢Ã‹â€ Ã¢â‚¬â„¢3)dm3 minà ¢Ã‹â€ Ã¢â‚¬â„¢1, respectively,indicated that the AD model provides an excellent approximation of the simulation of lumped breakthrough curves for the adsorption of Cr(III) by lechuguilla biomass. Therefore,the model can be used for design purposes to predict the effect of varying operational conditions. Chen et al. (2010) analysed Cr(III) ionic imprinted membrane adsorbents Cr(III)-PVA/SA) by blending sodium alginate (SA) with polyvinyl alcohol (PVA). In these new membrane adsorbents, polyethylene glycol was used as porogen, and glutaraldehyde was the cross-linking agent. Our new developed membrane adsorbents can be used without centrifugation and filtration. To investigate the adsorption kinetics of Cr(III) ions from aqueous solution onto this newly developed Cr(III)-PVA/SA, we performed a batch of experiments under different conditions by changing the concentration of Cr(III) ions in the Cr(III)-PVA/SA, pH value of the solution, adsorbent dose, initial Cr(III) ions concentration, adsorption temperature and contact time. Our Cr(III)-PVA/SA exhibited the maximum Cr(III) ions uptake capacity of 59.9 mg/g under the following conditions: 0.078 wt% of Cr(III) ions in the Cr(III)-PVA/SA, solution pH value of 6.0, adsorbent dose of 0.5 g/L, the initial Cr(III) ions concentration of 50 mg/ L, at 25 à ¢- ¦C. To study the mechanism of adsorption process, we examined the intra-particular diffusion model, Lagergren pseudo-first-order kinetic model and pseudo-second-order kinetic model, and found pseudo-second-order kinetic model exhibited the best correlation with our experimental data. Furthermore, our adsorption equilibrium data could be better described by the Langmuir equation. Competitive adsorption studies of the binary system of Cr(III)/Cu(II), Cr(III)/Cd(II) and the ternary system of Cr(III)/Cu(II)/Cd(II) were also investigated using Cr(III)-PVA/SA, the results indicated that selectively adsorbed amount of Cr(III) ion on Cr(III)- PVA/SA is significantly higher than that of Cu(II) and Cd(II) ions. We also used five times consecutive adsorption-desorption experiments to show that the Cr(III)-PVA/SA has high adsorption and desorption efficiencies. Huang et al.( 2010) studied a new approach for the preparation of tannin-immobilized adsorbent by using mesoporous silica bead as the supporting matrix. Bayberry tannin-immobilized mesoporous silica bead (BT-SiO2) was characterized by powder X-ray diffraction to verify the crystallinity, field-emission scanning electron microscopy to observe the surface morphology, and surface area and porosity analyzer to measure the mesoporous porous structure. Subsequently, the adsorption experiments to Cr(III) were applied to evaluate the adsorption performances of BT-SiO2. It was found that the adsorption of Cr(III) onto BT-SiO2 was pH-dependent, and the maximum adsorption capacity was obtained in the pH range of 5.0-5.5. The adsorption capacity was 1.30mmolgà ¢Ã‹â€ Ã¢â‚¬â„¢1 at 303K and pH 5.5 when the initial concentration of Cr(III) was 2.0mmolLà ¢Ã‹â€ Ã¢â‚¬â„¢1. Based on proton nuclear magnetic resonance (HNMR) analyses, the adsorption mechanism of Cr(III) on BT-SiO2 was proved to be a che lating interaction. The adsorption kinetic data can be well described using pseudo-first-order model and the equilibrium data can be well fitted by the Langmuir isothermal model. Importantly, no bayberry tannin was leached out during the adsorption process and BT-SiO2 can simultaneously remove coexisting metal ions from aqueous solutions. In conclusion, this study provides a new strategy for the preparation of tannin-immobilized adsorbents that are highly effective in removal of heavy metals from aqueous solutions. Kathiravan et al. (2010) studied the external mass transfer effects on the reduction of hexavalent chromium (Cr(VI)) using calcium alginate immobilized Bacillus sp. in a re-circulated packed bed batch reactor (RPBR). The effect of flow rate on the reduction Cr(VI) was studied. Theoretically calculated rate constants for various flow rates were analyzed using external film diffusion models and compared with experimental values. The external mass transfer coefficients for the bioconversion of Cr(VI) were also investigated. The external mass transfer effect was correlated with a model of the type JD = K, Re (1-n). The model was tested with various K values and the mass transfer correlation JD = 5.7, Re=0.70 was found to predict the experimental data accurately. The proposed model would be useful for the design of industrial reactor and scale. Ansari et al. (2011) immobilized Rosa centifolia and Rosa gruss an teplitz distillation waste biomass using sodium alginate for Pb(II) uptake from aqueous solutions under varied experimental conditions. The maximum Pb(II) adsorption occurred at pH 5. Immobilized rose waste biomasses weremodified physically and chemically to enhance Pb(II) removal. The Langmuir sorption isothermand pseudosecond- order kinetic models fitted well to the adsorption data of Pb(II) by immobilized Rosa centifolia and Rosa gruss an teplitz. The adsorbed metal is recovered by treating immobilized biomass with different chemical reagents (H2SO4, HCl and H3PO4) and maximum Pb(II) recovered when treated with sulphuric acid (95.67%). The presence of cometals Na, Ca(II), Al(III), Cr(III), Cr(VI), and Cu(II), reduced Pb(II) adsorption on Rosa centifolia and Rosa gruss an teplitz waste biomass. It can be concluded from the results of the present study that rose waste can be effectively used for the uptake of Pb(II) from aqueous streams.

Monday, January 20, 2020

Essay --

Personal respond of the text â€Å"on the rainy river† The role of relationship you have with other people often has direct influence on the individual choices and belief in the life. In the short story â€Å"on the rainy river†, the author Tim O’Brien inform us about his experiences and how his interacted with a single person had effected his life so could understand himself. It is hard for anyone to be dependent on just his believes and own personal experience, when there are so many people with different belief to influence you choices and have the right choices for you self. Occasionally taking experience and knowledge of other people to help you understand and build from them your own identity and choices in life. Throughout the story, O’Brien speaks about his adventure with man by the name Elroy Berdahl, the owner of the fishing lodge that O’Brien stays at while on he want to run away from his responsibility. O’Brien describe Elroy as â€Å"Elroy Berdahl: eighty-one years old, skinny and shrunken and mostly bald... His eyes had the bluish gray color of a razor blade, the same polished shine, and as he peered at me I felt a strange sharpness, almost painful, a cutting sensation, as if his gaze were somehow slicking me open.† O’Brien give the reader a clear idea about what Elroy looked like and how he the big influence on his, he eels Elroy can see the pain and desire inside of him. The circumstance of O’Brian has while he was their helping him to find and realize what his true believes and personality. The author of the story gives the audience the sense that our personal understanding of self is built on the role of relationship we have with others. There are many things that could influence the person choices such as family, friend... ...es â€Å"behaving like his hero from his youth.† while he was at the river to describe his thought and feeling and why he did decided to go to war rather than run away. His thought of going to war was, so he does not be guilty man in front of his family and friends. In either way the people you met throughout your life has always influence to build your moral character and your personal understanding of self. Everyone had influenced by their surrounding. Your personal identities and choices in life are based on the role of the relationship you have with others. This helps you to realize who you are and what you need in the life. The combination of all you learns come together to give you a clear idea of what your needs, values, and belief in this life. Finally, it is clear that the role of relationship play an important role in the framework of our personal identities. Essay -- Personal respond of the text â€Å"on the rainy river† The role of relationship you have with other people often has direct influence on the individual choices and belief in the life. In the short story â€Å"on the rainy river†, the author Tim O’Brien inform us about his experiences and how his interacted with a single person had effected his life so could understand himself. It is hard for anyone to be dependent on just his believes and own personal experience, when there are so many people with different belief to influence you choices and have the right choices for you self. Occasionally taking experience and knowledge of other people to help you understand and build from them your own identity and choices in life. Throughout the story, O’Brien speaks about his adventure with man by the name Elroy Berdahl, the owner of the fishing lodge that O’Brien stays at while on he want to run away from his responsibility. O’Brien describe Elroy as â€Å"Elroy Berdahl: eighty-one years old, skinny and shrunken and mostly bald... His eyes had the bluish gray color of a razor blade, the same polished shine, and as he peered at me I felt a strange sharpness, almost painful, a cutting sensation, as if his gaze were somehow slicking me open.† O’Brien give the reader a clear idea about what Elroy looked like and how he the big influence on his, he eels Elroy can see the pain and desire inside of him. The circumstance of O’Brian has while he was their helping him to find and realize what his true believes and personality. The author of the story gives the audience the sense that our personal understanding of self is built on the role of relationship we have with others. There are many things that could influence the person choices such as family, friend... ...es â€Å"behaving like his hero from his youth.† while he was at the river to describe his thought and feeling and why he did decided to go to war rather than run away. His thought of going to war was, so he does not be guilty man in front of his family and friends. In either way the people you met throughout your life has always influence to build your moral character and your personal understanding of self. Everyone had influenced by their surrounding. Your personal identities and choices in life are based on the role of the relationship you have with others. This helps you to realize who you are and what you need in the life. The combination of all you learns come together to give you a clear idea of what your needs, values, and belief in this life. Finally, it is clear that the role of relationship play an important role in the framework of our personal identities.

Sunday, January 12, 2020

Economic Problems

Major economic problems in the Philippines are very similar to the economic problems in other underdeveloped countries. Some of the major pinpointed problems are the import-export imbalance, causing those who specialize in trade and make their living off of imported and exported goods to lose money. The imbalance causes families that are forced to survive off of this small income to wonder if they are going to eat the next week or not. One week there are plenty of orders to keep a family and company afloat; the next, there are no orders, causing the family and companies to suffer.Decline of the Philippine peso, which is the value of the money in the Philippines. The lack of business versus the amount of pesos in the small country simply do not add up. In order for families to purchase anything in the Philippines, they have to have several hundred pesos to equal the value of what ever it is they are attempting to purchase. The pesos are equal to less than that of the Mexican peso. Rel iance on remittances. This is when the companies in the Phillips attempt to sell and distribute goods over seas, with other workers from the countries.The Filipinos work in a different country and forward monies back to the homeland, where the company is based out of. This prevents the countries – the foreign and home – from taking out excessive taxes and fees for importing and exporting goods. These are just some of the major problems concerning the Philippines. More information on this country can be found at www. buzzle. com. Individuals continue to suffer daily, and struggle throughout daily life. There are several charities set up through the United States in an attempt to assist these families that desperately need help with simple survival skills. Economic Problems Major economic problems in the Philippines are very similar to the economic problems in other underdeveloped countries. Some of the major pinpointed problems are the import-export imbalance, causing those who specialize in trade and make their living off of imported and exported goods to lose money. The imbalance causes families that are forced to survive off of this small income to wonder if they are going to eat the next week or not.One week there are plenty of orders to keep a family and company afloat; the next, there are no orders, causing the family and companies to suffer. Decline of the Philippine peso, which is the value of the money in the Philippines. The lack of business versus the amount of pesos in the small country simply do not add up. In order for families to purchase anything in the Philippines, they have to have several hundred pesos to equal the value of what ever it is they are attempting to purchase.The pesos are equal to less than that of the Mexican peso. Reli ance on remittances. This is when the companies in the Phillips attempt to sell and distribute goods over seas, with other workers from the countries. The Filipinos work in a different country and forward monies back to the homeland, where the company is based out of. This prevents the countries – the foreign and home – from taking out excessive taxes and fees for importing and exporting goods.These are just some of the major problems concerning the Philippines. More information on this country can be found at www. buzzle. com. Individuals continue to suffer daily, and struggle throughout daily life. There are several charities set up through the United States in an attempt to assist these families that desperately need help with simple survival skills. For more information, please see:www. reference. com