ABEKA VOCABULARY, SPELLING, POETRY IV REVIEW QUIZ 3 Flashcard

ABEKA VOCABULARY, SPELLING, POETRY IV REVIEW QUIZ 3

Summary of William Graham Sumn essays

Summary of William Graham Sumn essays Folkways, an essay compiled by William Graham Sumner, is a closely examined analysis of the inner-workings of society and why it works the way that it does. This particular essay has influenced many other philosophers/sociologists by the way we view the process of understanding rules and regulations set by society. Not just specific individual cultures around the world over the span of the era that humans have inhabited the Earth, but how we all act together to form what we call a society. And that, even though most ethnocentric individuals in their own societies deny, we all work remarkably similarly when it comes to forming our own respective groups and intertwine them into the massive web of individual relations with each other to form the societies that we live in everyday. This essay is basically a description of how these rituals in human nature first developed and evolved into the complex ways that we all (as contributors to our respective cultures) work together to keep these same basic rules true to all have the same basic powers to collectively and equally work together to form the hierarchy of rules or morals and all follow the same ones to keep peace among ourselves to keep everyone in order so that the essential needs can be met for everyone in that society. As William Graham Sumner states in his essay the first task of life is to live...Need was the first experience and it was followed at once by a blundering effort to satisfy it...they controlled and aided the first efforts to satisfy [these] needs. This excerpt explains how he perceives how acts are needed to be done, and in order to have any sort of control on how it is done, then we all have to understand that these are the basic needs one as to have in order to satisfy these acts. He also spends most of his time explaining what happens when these basic acts are being done, and how that transforms into the folkw...

Transport report Essay Example | Topics and Well Written Essays - 3500 words

Transport report - Essay Example Two core participants in the multimodal supply are identified as the management (logistic department) and the multimodal transporter chain have been discussed in details. Each of these key players is seen to have very distinct and elaborate functions to play in making multimodal supply chain a success. Lastly he benefits of using multimodal supply chains are discussed. For the purpose of description Oakley Oil Company based in U.K. has been used. A supply chain is made up of all parties concerned, directly or indirectly, in fulfilling a buyer request to either supply goods or provide a certain service. The parties involved include retailers, customers and transporters. Within each supply chain, transport plays a key role of receiving and delivering a customer’s request. A warehouse’s transport means may either be by air, road, water or rail or a combination of any 2 or 3 thus a multi-modal transport chain supply. In other supply chain’s transport systems, customers order are supplied using a single means thus a uni-modal transport supply chain (â€Å"About Dept to Equity Ratio†, 2012). A customer who places an off shore order will be most likely supplied with a multi-modal transport supply chain. A multi-modal supply system is largely used by multi-national companies; however, other established companies though not multi-national may use it. To the contrary, uni-modal transport supply chains large ly serve local purchase orders because there may not be transit over vast distances. In addition, uni-modal transport supply chains chiefly serve domestic markets while, multi-modal transport supply chain, serves foreign market of exports and imports. Uni-modal transport supply chains, though, they have a number of limitations, they should be appreciated for a number of reasons. First, they help meet limited supplies of goods which cannot be economical to the multi-transport supply chains, for example Oakley Oil Company supplies motels far distances from it

Macroeconomics- methods of Economic growth for Singapore and Hong Kong Essay

Macroeconomics- methods of Economic growth for Singapore and Hong Kong - Essay Example The prices of goods offered by the economy have determination in a free price system (McEachern, 2012). The nations should look for the products and services that people are interested and focus on building them. Today, large nations that control the world’s trade depend on market economy since it is where they control and participate in both exports and exports. Singapore and Hong Kong are some of the new nations that have come of age and adopting the market economy to not only increase their competitiveness but also give it an economic advantage. Additionally, taxation laws are another way both Hong Kong and Singapore can use to encourage economic growth. If the economies do not give enough tax, they will not be able to supply the infrastructure and services they need to keep existing businesses or attract new ones. Investment in infrastructure and human capital – safe and modern infrastructure guarantees investments in the country. Any country with a high number of investors leads to more exports from the country. Better investments, thus result in the growth of the economy of the nations (McEachern, 2012). The roads in Singapore and Hong Kong are of high quality thus offer quick and efficient transport system for the goods and services. Besides, improved infrastructures attract investors and reduce the cost of production. Availability of cheap electricity and enhanced road network is paramount to opening interior areas as they have potential when reach. Some of the newly industrialized nations managed to reach the stage because of the developed infrastructure. Similarly, availability of human capital is vital is any economy because it determines the input required towards higher production. For instance, any nation that wants to attract investors must ensure that it provides personnel that assist in the daily running of the institutions as well as firms that have been

Group project Essay Example | Topics and Well Written Essays - 2500 words

Group project - Essay Example At first a field study is carried out to validate the first stage of the framework, the Recognition Stage. By this way the trouble indicating symptoms of said project was worked out. Such symptoms were logically examined and recovery measures applied for making it bug free and as per the requirement of the client. Another aspect was shortfalls in the project management model and the group dynamics. After review of relevant literature, the problem was reviewed and specific steps taken for a recovery process. This part of the project covers the commercial aspects of website. It is basically meant for a user who desires to buy parts of a PC as per his options. The web page has restricted for those users who has valid account in this site. For that he requires to create an account and get a user id and password. Through the user id and password he would enter into the commercial page of website where he would choose desired items from the displayed list of computer peripherals for purchase. This involves two important parts namely Customer part and Administrator part. Customer part deals with creating an account, searching for computer peripherals, browsing categories, PC configurator, Order placing, viewing the items ordered, modifying the shopping basket, setting quantity of items, buying the selected items. On account of designing client based webpage we used PHP as front end tool. Next part is administrator related which has database server that keeps all the products and its specifica tions stored in it. As the whole project designed to be created with open sources technology we used MySQL 5.0 version. In the back end process we created a database consisting of all the details of products and once all data related to the products entered into this server only thing we had to do next was to update the products as per the

Dual Band Bandpass Filter Using Meandered Ring Resonator

Dual Band Bandpass Filter Using Meandered Ring Resonator Dual band bandpass filter using Meandered ring resonator using loaded DGS Mariselvam V, Raju S Abstract Compact microstrip dual-band bandpass filter (DBBPF) with high selectivity and good suppression for wireless local area networks (WLANs) is proposed utilizing a novel embedded scheme resonator loaded ring resonator DGS. Two passbands are produced by a pair of embedded half-wavelength meandered stepped-impedance resonator (MSIR) and a quad wavelength short stub loaded stepped-impedance resonator (SIR) separately. The loaded DGS avoids the cross talk in the pass band which is useful to achieve very sharp cutoff in the pass band. The resonator is fed by folded T Shaped capacitive source-load coupling microstrip feed line, and four transmission zeros are obtained at both sides of the bands to improve selectivity and suppression. Simultaneously, the size of the filter is extremely compact because embedding half-wavelength MSIR only changes the interior configuration of quad-wavelength SIR. To validate the design method, the designed filter is fabricated and measured. Both simulated and me asured results indicate that good transmission property has been achieved. Keywords:  Low-pass filter, spurious rejection, linear phase, ring resonators, microstrip filters microwave filters. 1. Introduction BPFs are important block in RF front-to-end and have drawn much attention since they can reject the useless signals. In [1–3], miniaturized BPFs with high selectivity and enhanced out-of-band performance are designed for wireless communication systems. In recent years, with the development of different wireless standards, such as global system for mobile communication (GSM), wireless local-area network (WLAN) and world interoperability for microwave access (WiMAX), designing multi-band BPFs with miniaturized size, high selectivity and controllable frequencies has become a trend. In [4–6], compact and high selectivity dual-band BPFs are designed by two sets of resonators, stepped-impedance resonators (SIR) and stub-loaded resonators, respectively. For dual-band BPF designs, various approaches have been studied. A simple effective method is to utilize two or three sets of resonators [7–10]. In [7], a high selectivity dual-band BPF is designed by using coupled stepp ed impedance resonators. Each set of resonators operates at a pass band, resulting in controllable frequencies. Unfortunately, it has large size due to the multi-sets of resonators. In this a novel Meandered stepped impedance resonator with loaded DGS is utilized to achieve the desired dual pass band and the size is reduced. The two passbands are generated through respective resonators. High selectivity is obtained by the introduction of several finite attenuation poles in stopband. Compared with the conventional dual band filter, the filter is smaller in size and better in performance. 2. Analysis of stepped impedance resonator To design a DBBPF using SIRs, the properties of SIR must be analyzed first. As shown in Fig. 1, the basic structure of half-wavelength SIR consists of two lines of different characteristic impedances Z1 and Z2 and electrical lengths ÃŽ ¸1 and ÃŽ ¸2. It can be treated as two uniform cells (cell A and cell B). The resonance conditions can be obtained from one of them since the half-wavelength SIR is symmetrical [10]. The impedance of the resonator can be calculated as expression According to the above equation, the resonance appears when Zin is infinite, namely the denominator is equal to zero. As a result, the following expression can be obtained as the resonance condition Where Rz is the impedance ratio. In expression (2), we can see that the resonance conditions are determined by ÃŽ ¸1, ÃŽ ¸2 and Rz. It can adjust these three factors to obtain the resonance that we required, and a dual mode filter can be designed by using SIR. Fig. 1.Basic structure of the half wave length SIR (3) à Ã‚ ´s1 is the electrical length for the first spurious frequency fs1 .In this paper is to design a good WLAN filter, the first spurious frequency must be avoided at the designed lower passband. 3. Design of DBBPF Fig. 2 shows the transformation process to design an embedded-scheme resonator for DBBPF. In Fig.2 (a) a quad-wavelength short stub loaded SIR is shown. To reduce its size, the SIR is folded as an open-loop. Additionally, the low impedance lines of quad-wavelength short stub loaded SIR are broad enough to provide area for a small resonator, which make it possible to embed a pair of small coupling resonators. So, we replace the low impedance lines with a pair of meandered SIRs, which is shown in Fig. 2(b). To achieve a high performance dual-band filter, it is necessary to introduce transmission zeros at both sides of the bands. Due to the existence of DGS, magnetic coupling takes up dominant position on the short stub loaded SIR shown in Fig. 2(a). On the other hand, as the embedded MSIR is folded as an open-loop, it has the maximum electric field density at the side with an open gap, and the maximum magnetic field density at the opposite side. If the sides with the maximum magnetic f ield of two coupled resonators are proximately placed, the magnetic coupling can be obtained. Therefore, the coupling between the half wavelength SIR loops is also magnetic [15]. So, transmission zeros near the two pass bands can be generated by feeding microstrip feed line with capacitive source-load coupling, which because the counteraction between electric field and magnetic field. These transmission zeros have permits to improve selectivity and suppression of this filter. (b) Fig. 2.Embedded Resonator DBBPF design scheme. A filter proposed for WLAN is shown in Fig. 4.A set of parameters of it is given in Tab.1. 4. Filter Configuration Fig.3.T shaped stub loaded resonator Fig. 2 shows the configuration of the proposed micro strip dual-band BPF. It is composed of two sets of resonators. The outer resonators are stub-loaded resonators operating at the first and two pass band frequencies, i.e., 3.68 GHz and 7.01 GHz. Fig.3 illustrate the configuration of the resonator. It consists of a transmission line of length and a T-shaped stub loaded at the line centre is the overall length of the lines, namely L. L= B1+2d1+2f1+2C2+s1+2f1 Open-circuited coupled-lines with the length C2and gap C1 are employed to realize electrical coupling. Two transmission lines with the characteristic impedance of 50à ¢Ã¢â‚¬Å¾Ã‚ ¦ are connected to the outer resonators, acting as input and output ports. Embedded between the two outer resonators, the inner resonators 2 and3 are used to yield the second pass band at f2. The inner resonators are fed by the outer ones. Using this structure, multi-path coupling can be realized for the pass band, which can help generate a pair of transmission zeros. (a) (b) Fig. 4. Schematic view of the proposed filter (a) Top view (b) Bottom view 5. CSRR DGS UNIT The Ring Resonator structures are designed and produced by applying the Babinet principle to the split ring resonators (SRR). In this way structures with apertures in metal surface are obtained and these CSRRs create negative ÃŽ µ instead of negative ÃŽ ¼ in a narrow range near the resonance frequency. In microstrip technology, left handed Metamaterial structures exhibiting band stop behaviour can be implemented by etching CSRRs in the ground plane, underneath the conductor strip, and along the series capacitive gaps. The gap provides a negative value of the effective permeability up to certain frequency that depends on gap dimensions and separation. The negative ÃŽ µ structure has been obtained by loading a microstrip line with CSRR particles as shown in Fig.4. There are many different parameters that affect resonance frequency of CSRR, most dominant being the permittivity of the substrate and length of the resonator. The resonance frequency is inversely proportional to the length o f the resonator and is directly proportional to the split gap of the resonator. It is considered that the CSRR particle is etched only in the ground plane. CSRR etching depth decides the strength of the resonance increases [12]-[13] In order to improve the sharper cut-off, compact in size and harmonic suppression ability of the conventional dual band pass filter a CSRR is loaded in the bottom of the filter. The CSRR is designed at the anti-resonance frequency. Inherent nature of anti-resonance behaviour, it rejects the frequencies above cut-off frequency. In this way we achieved sharp cut-off.the dimensions of the ring resonator is given in Table.1. 6. Simulated and measured results To validate the characteristics, the proposed dual band filter is fabricated and measured in a FR4 substrate with a relative dielectric constant 4.4 a thickness of 1.6mm has been used in this paper. 50 ohms microstrip feed line with a width of 2.2mm is located at both of the input and output ports.fig 6 shows the photograph of the fabricated dual band filter. Fig.7. depicts the simulated and measured results of the proposed filter simultaneously. Here CST microwave studio is used for simulation and an Agilent network analyser N5230A is used for measurement. The simulated / measured minimum insertion losses are 0.65/0.985dB respectively at 3.684GHz band and 0.98/1.35dB respectively at 7.01 GHz. The size of the proposed layout is 14.5mmX19.9mm. (a) (b) Fig.6. Photograph of the Prototype of dual- band filter (a) top view (b) bottom view (a) (b) Fig.7. Simulated and measured (a) S11 (b) S21 of the proposed filter Tab. 1.  Parameters of the proposed filter Tab. 2.  Comparison of the proposed filter IL-insertion loss FBW- Fractional Band width 7. Conclusion In this paper, a dual band filter designed by embedded resonator loaded with ring resonator DGS was presented. A t-shaped embedded resonator with capacitive source –load coupling is used for feeding and multiple transmission zeros are created and DGS ring resonator is loaded to improve the performance of the filter. A good quality dual band Bandpass filter operating at 3.684 GHz and 6.83GHz for WLAN is well designed and fabricated .The size of the filter is 14.5X19.9mm which is very small. References JUN, S., K. CHANG., Compact microstrip bandpass filter using miniaturized hairpin resonator. Progress in Electromagnetics Research, PIER 2013, vol. 37, pp. 65–71. DAI, G.L., M.Y. XIA., Novel miniaturized bandpass filters using spiral-shaped resonators and window feed structures. Progress In Electromagnetics Research, PIER 2010, vol. 100, pp. 235–243. WEI. X., P. WANG, AND Y. SHI. M., Compact mixed-cross coupled bandpass filter with enhanced frequency selectivity. Progress In Electromagnetics Research, PIER 2013, vol. 37, pp. 73–82. CHAUDHARY, G., Y. JEONG, J. LIM., Dual-band bandpass filter with independently tuneable center frequencies and bandwidths IEEE Trans. Microw. Theory Tech., 2013, Vol. 61, pp. 107–116. ZHANG, R. AND L. ZHU, Design of a compact dual-band bandpass filter using coupled stepped impedance resonators. IEEE Microw. Wireless. Compon. Lett., 2014, vol. 24, No. 3, pp. 155–157. GAO, L. X. Y. ZHANG, High selectivity dual-band bandpass filter using a quad-mode resonator with source-load coupling. IEEE Microw. Wireless. Compon. Lett. 2013, vol. 23, No. 9, pp. 474–476. ZHANG, S., L. ZHU. Compact tri-band bandpass filter based on ÃŽ »/4 resonators with U-folded coupled-line. IEEE Microw. Wireless. Compon. Lett, 2013, vol. 23, No. 5, pp. 258–260. CHEN, F., C. Q. X. CHU, Design of compact tri-band bandpass filters using assembled resonators. IEEE Trans. Microw. Theory Tech., 2009, Vol. 57, pp. 165–171 XU, K., Y. ZHANG, D. LI, Y. FAN, J. L.-W. LI, W. T. JOINE, AND Q. H.LIU, Novel design of a compact triple-band bandpass filter using short stub-loaded SIRs and embedded SIRs structure. Progress In Electromagnetics Research, PIER 2013, vol. 142, pp. 309–320. PENG, Y., L. ZHANG, Y. LENG, J. GUAN, A compact tri-band pass band filter based on three embedded bending stub resonators. Progress In Electromagnetics Research, PIER 2013, vol. 37, pp. 189–197. RUNQIZHANG, LEIZHU. Y, Design of a compact dual band band pass filter using coupled stepped – impedance resonators. IEEE Micro. Wireless. Compon. Lett, 2014, vol.24, No.3 pp.155-157. RUNQIZHANG, LEIZHU, Synthesis and Design of Wideband Dual-Band Bandpass Filters With Controllable In-Band Ripple Factor and Dual Band Isolation IEEE Trans. Microw. Theory Tech., 2013, Vol. 61, pp. 1820–1828. KARUPPIAH ANNARAM, SURESH NITHYA. Investigation of Compact Low Pass Filter with Sharp Cut–Off using Metamaterial. RADIOENGINEERING, 2013, VOL. 22, NO. 3. BAENA, J. D., BONACHE, J., MARTIN, F., SILLERO, R. M. Equivalent circuit models for split ring resonators, and complementary split ring resonators coupled to planar transmission lines. IEEE Transaction on Microwave Theory and Techniques,2005, vol. 53, no. 4, p. 1451-1461. B. F. ZONG, G. M. WANG, H. Y. ZENG, Y. W. WANG. Compact and High Performance Dual-band Bandpass Filter using Resonator-embedded Scheme for WLANs. RADIOENGINEERING, 2012, VOL. 21, NO. 4.

Organic Foods Essay -- Food Organic Health Eating Essays

Organic Foods â€Å"You are what you eat†, or so they say. In today’s supermarkets, organic foods are everywhere. Not only are there organic fruits and vegetables, but there are also organic dairy products, organic meats, organic convenience foods, organic wine, beer, coffee, tea and even clothes made with organic cotton. All of these choices have made organic foods the â€Å"fastest-growing segment of the grocery industry.† The Organic Trade Association (OTA), in its â€Å"Business Facts† fact sheet available at www.ota.com, cites Natural Foods Merchandiser, a trade magazine, as measuring organic industry growth at 20 percent or greater for the past nine years. Approximately two percent of the U.S. food supply is grown using organic methods. In 2001, retail sales of organic food were projected to be $9.3 billion (Organic Trade Association [OTA], 2001). That is nearly triple the $3.5 billion in sales in 1998 (Biocycle; Nov. 2004, Vol. 45 Issue 11, p27). Organic foods ca n be found at natural food stores such as Whole Foods Inc., Wild Oats Inc., major supermarkets, farmers markets as well as through â€Å"grower direct marketing† such as CSAs (Community Supported Agriculture) or Co-Ops. Many restaurant chefs and culinary related professionals across the country are starting to use organic produce because they desire its superior quality and taste. Organic food, also gaining international acceptance, has become widespread in nations like Japan and Germany where the development of organic food markets has seen substantial growth (OTA, 2004) People choose to â€Å"go organic† for different reasons but, the single most important reason to choose certified organic foods is because organic agriculture in its very essence preserves, protects and restores our environment in significant ways (United States Department of Agriculture. [USDA], 2002). Also, organic farming embraces the principle that agriculture must meet the needs of the present without compromising the needs of future generations, not to mention that organic foods are often the safest, freshest, most flavorful and most nutritious foods in the marketplace (European Journal of Nutrition 40: 289-292 (2001)). The USDA has tried to emphasize that organic food is no healthier, and adds no real benefits to a healthy lifestyle than regular foods. However, with the contamination present in plants treated with pesticides, pre ... ...pect. It matters to our communities. But most of all, it matters to our appreciation of life. References Journals Cuddleford, V. (2003). When Organics Go Mainstream. Alternatives Journal, 29(4), 15-20. Baxter, G., Graham, A., Lawrence, J., Wiles, D., Paterson, J., et al. (2001). Salicylic acid In soups prepared from organically and non-organically grown vegetables. European Journal of Nutrition, 40, 289-292. Retrieved on 3-3-05 from Ebscohost. Composting at the World’s Largest Natural Foods Supermarket Chain. (2004). Biocycle. 45(11). p27. Retrieved on 3-3-05 from Ebscohost. Federal or Government Sources Organic Foods 101: Basic Information about organic foods, national labeling standards and online organic foodsellers. (2002). Retrieved on 3-3-05 from http://www.nrdc.org. The National Organic Program .(USDA). (2002). Retrieved on 3-3-05 from http://ams.usda.gov. Trade Publications Organic Food Facts. (2003). Organic Trade Association. Retrieved on 3-3-05 from http://www.ota.com/organic/mt/food.html Industry Statistics and Projected Growth. (2003). Organic Trade Association. Retrieved on 3-3-05 from http://www.ota.com/organic/mt/business.html