Excellence Is Your Best Weapon For Fighting Racism :: essays research papers

Excellence is Your Best Weapon for Fighting Racism The Bible says that "the poor will always be with us." An similar statement is that racism will always be with us. So, the question is, "What should we do about it?" There are many ways to fight racism: you might march, protest, complain, or beg the government for help. Some of these methods have worked well in the past. However, I think the best and most effective weapon today for fighting racism is excellence. Excellence will bring down more racial barriers than all the marching and shouting in the world. To develop the weapon of excellence, we must take advantage of all the educational opportunities that are available to us. Even though the doors of opportunity are not always opened equally to everyone, there are still ways to be what you want to be, go where you want to go, and have what you want to have. And it does not matter where you live, how poor you are. You still have the ability to succeed. As long as you have your health and can think, success is possible. Accepting the fact that the doors of opportunity are not opened equally to everyone, one thing that is equal for everyone is time. There is the same number of hours in the day for all of us. How you use these hours is your choice. You can use them on the playground or you can use them to play the books. Playing on the playground might give you some hours of immediate enjoyment, but playing the books will give you long-term gratification. African Americans and other minorities can no longer use the excuses of being poor or living in a bad neighborhood or small town to keep us from achieving excellence through education. In some cases, the poorer you are the more educational opportunities that are available to you. Poverty should not be an excuse for not working up to your potential. No matter how poor you think you are, there is always someone who is poorer. Please do not be embarrassed by or ashamed of the size your home town. Many individuals from small towns have become very successful and risen to the top of their professions. If President Clinton can change his address from Hope, Arkansas to 1600 Pennsylvania Avenue, Washington, D.C., then you know it is possible to fulfill your aspirations, whatever they might be. President Clinton's rise to the top of his profession suggests to me that whether you are a big time runner from New York City, or a guy who runs around the block in Fall

William Blakes The Echoing Green Essay -- William Blake Poetry Echoin

William Blake's The Echoing Green The poem ‘The Echoing Green’ is written by William Blake. It is taken from SONGS OF INNOCENCE. It is divine voice of childhood unchallenged by the test and doubts of later years. Blake expresses in simple and lovely diction the happiness and innocence of a child’s first thoughts about. This is a pictorial poem. ‘The Echoing Green’ is a poem about a grassy field on a warm morning in late spring. The poet gives a very beautiful description of a dawn and morning of spring. The spring represents the life. Morning is the beginning of life and the dark evening is the end. This poem is a blend of child like innocence and grayness of later years. It is symbolic and draws a contrast between youth and old age. Blake has expressed broad meaning of the playground. The children are carefree and they are not surrounded by any kind of worries because worries are associated with old age and pleasures with childhood. The children are busy in games. They are showing vibrant attitude and display high energy in their games. They are laughing and thoroughly enjoying themselves. Their voices echo in the field. They travel on the wings of leisurely fancy and float far into the realm of calm and sweet childhood joy; unaware of the pains and cutting realization they are going to encounter as the years fall in on them. The nature also seems to join in with their joy as the sun shines with sheer brilliance over the playing children. The azure sky also seems to be smiling at the joy of these innocent children. The whole atmosphere further seems drunk with high-spirited fervor; the church bells add their sonorous chimes to this festive atmosphere. The poet symbolizes the innocence and delicacy of children with the... ...evening shadows creep on the green announcing the arrival of night-death. The green takes on an unpleasant and sordid look. The game ends! So does the life. The children return to their homes to rest. The home symbolizes the grave and the rest is the eternal rest. Thus the poem is a splendid pen picture of joys of child hood and their eventual fading away into eternity. Blake has further laid stress on the potent entity called ‘change’. The poet has through useful symbol of oak tree, old people, evening etc has discussed the mechanics, which act as a fulcrum in moving the paddles of life. The poet has showed superb mastery as he changes the mood of the poem along with the progression of the poem. The poem is in fact a very fine presentation of the philosophy of life resting on the hinges of the magnificent time. ‘And sport no more seen On the darkening green.’

Companies that gives importance to their employees

Companies that gives importance to their employees BY 2141361 Companies that gives importance and value to its employee. Boston Consulting Group BCG invests â€Å"100-plus hours and thousands of dollars to recruit each consultant,† says the company's site, and it also claims to pay 100 percent of its employees' health care premiums. â€Å"Attracting top talent and maintaining an environment in which employees can rapidly develop have been key to our success and our ability to deliver enormous value to clients.Recognitions like this are a nice acknowledgment that our efforts are highly unusual and, based on our growth and client retention, ffective,† says Rich Lesser, BCG's chairman of North and South America. SAS Institute SAS has ranked in Fortune's Top 100 for 14 consecutive years, according to the company's web site. The company says that â€Å"if you treat employees as if they make a difference, they will make a difference. SAS employee rewards includes subsidized Montessori child care, unlimited sick days, a free health care center, and intramural sports teams. CEO Jim Goodnight says that â€Å"[we create] a culture that rewards innovation, encourages employees to try new things and yet doesn't penalize them or taking chances, and a culture that cares about employees' personal and professional growth. † Zappos. com Zappos accomplishes a mix of both â€Å"traditional† ways of showing employee appreciation, like company picnics and holiday parties, as well as more unique ways.Last year they held the Zfrog awards, which let employees pitch their own business ideas, â€Å"laughter yoga† classes, Tank Top Tuesday, and recognizing employees in different departments, such as Merchandiser of the Quarter. â€Å"l love working at Zappos; the creativity and fun we have here are unparalleled, at least by any other ob I've ever had. There are all sorts of people here: young and old; shy and extremely outgoing; ‘normal' andâ₠¬ ¦ weird. I love that Zappos embraces people of all cultures, styles, and personalities,† says one Zappos employee.DreamWorks Animation According to DreamWorks' careers site, â€Å"the work community is enriched with many special events including movie screenings, art and short film festivals, artistic development classes, and family get-togethers. † â€Å"We are committed to fostering a culture that embraces innovation, creativity, collaboration, and a solid dose of fun. † Throughout the year, the company offers its employees art shows, craft fairs, movie screenings, art classes and lectures.CEO Jeffrey Katzenberg communicates daily with his employees through blog posts and his staff appreciates â€Å"the transparency between the employees and the CEO,† says Dina Strada, Manager of Employee Events and Communications. Hasbro, Inc. On its web site, Hasbro writes: â€Å"We value our employees and understand that our success would not be possible without al l their hard work, dedication, and passion. † Hasbro employees have access to the company's fitness centers, half-day Fridays, rograms.Hasbro also makes sure to remember employees' children by participating in Kids Carnival, Santa Breakfast, and Bring Your Son/Daughter to Work Day. S. C. Johnson At the family company S. C. Johnson, 12,000 employees have access to a concierge service that will see to it that their chores get done. This ranges from returning overdue library books to making sure your dry cleaning gets picked up on time. â€Å"To make the best products for your family, we need the best people in our company family,† according to the company website. Also available are childcare for parent employees, and paid sabbaticals.

Analysis of Badinerie by J. S. Bach Essay

The piece Badinerie is best known for its destinations as the final movement of Johann Sebastian Bach’s Orchestral Suit No.2 in B minor. Johann Sebastian Bach was born on the 21st March 1685 and died on the 31st of July 1750. He was a German composer, organist, harpsichordist, and violinist. He wrote sacred and secular works for choir, orchestra, and solo instruments. Bach drew together the strands of the Baroque period and brought it to its ultimate maturity. The piece Badinerie is in a light mood and structured in the Binary Form. It is cast in swift 2/4 metre beginning on the upbeat or anacrusis. This piece was originally written for a Chamber Orchestra and a solo flute. The piece starts in B minor and played in allegro tempo throughout. Badinerie start with a messo forte dynamic marking meaning moderately loud with motive A in the pickup bar at the beginning and motive B starts on the second beat in bar two to bar 3. The Antecedent ranges from the beginning of the music to the first beat of bar four, which ends on a Perfect Authentic Cadence. The Consequent started on the second beat of bar for four to the first beat of bar ten, which ended on an Imperfect Cadence a one to a five suspended two chord in second inversion. They are long phrases throughout the duration of the piece. In the first five bars the bass line plays a Bassa Continuo style in Baroque music, however in modern day it is called a Walking Bass style. In bars six to ten the melody line plays a similar rhythm that the bass was playing in the first five bars and the bass line plays a similar rhythm to what the melody line was playing. The second beat of bar 10 the dynamic marking changes to forte meaning loud which is the beginning of the phrase extension and sequential progression to bar 16. There is a great build up in this phrase with a messo forte crescendo leading up to forte and the use of sixteen notes in the bass notes the section intense and bright. Bar sixteen the end of the first section is repeated and ends on an Imperfect five of five going to five cadence called tonicization. The second section of the piece is a development of A, which is the same melody played a fifth up. The Antecedent started from the pickup beat to the first beat of bar twenty and the consequent picked up on the next beat and ended on bar twenty three on a five of three going to a three cadence. The piece then modulated to D major in the next bar then f# minor in bar 30 then back to b minor in bar thirty two. There is a phrase extension starting on the second beat of bar twenty to the first beat of bar twenty eight. The same idea comes back again of the melody line taking the rhythm of the bass line and the bass line taken the rhythm of the melody line in bars twenty eight to thirty two. There are pedal points in bars 33 to 35, interesting to note that there is use of octaves. In bars thirty six the first beat has a loud dynamic marking and the second beat has a soft dynamic marking which is quite interesting. There is a crescendo in the next bar leading up to forte towards the second to last bar. This section is then repeated and the section time around there is a rit. 2 Volta which means turn around then retard the second time. The piece ends on a Perfect Authentic Cadence.

Dialectical Theory

Interpersonal relationships have been the subject of research and discussion for many centuries. Whether a relationship lasts or breaks depends so much on how the parties involved respond to the emerging challenges and how they respond to issues. According to the dialectic theory, all relationships undergo tensions which often result into contradictions. It is how the parties engaged in a relationship respond to tensions that shapes the way parties will handle tensions. For a husband and wife in a marriage or a boyfriend and girl friend in a love affair, the knowledge of the underlying assumptions of the dialectic theory is fundamental. This essay looks into the impact of dialectical tensions in relationships, the management of tensions in relationships and finally the strategies those in relationships can adopt to deal with tensions. The writer incorporates personal experience of tensions to expound and make clearer the points deliberated. Autonomy This is the desire to be independent in the things that you set out to do and also in your entire life. It occurs regardless of the closeness or intimacy that one has established with his/her partner or even with other people. The need to be autonomous in a relationship may lead to conflicts since your partner expects you to cooperate and do everything together inclusive of sharing ideas and experiences. Individual identity This refers to the process of trying to understand oneself in a better way. It involves making attempts of stabling ones weaknesses and strengths so that one can be able to his/her living grounds. It can result to tensions in a relationship in that on the process of trying to understand yourself your weaknesses may outweigh your strengths and this may bring about doubts on the side of tour partner. Change This is the desire to acquire and sustain variety for example in a relationship. It can be both positive and negative whereby negative change brings about much tension in a relationship. This refers to turning against the plans and agreements that were entered into during the beginning of the relationship. Desire for Separation This refers to the strong need to part ways with your partner may be because of inevitable circumstances like a job or due to existence of varied decisions between the partners whereby none wants to give in to each other’s decisions. This leads to tensions in a relationship and it can even yield into a divorce. Varied approaches- this refers to use of different means and ways to solve problems or address issues in the relationship by the partners. The partners may therefore have a lot of disagreements and this strains and puts tensions to the relationship. Privacy- this refers to the tendency of keeping things to oneself. The partners may decide not to disclose anything to each other and this really puts a lot of tension to the relationship since open-ness is not practiced. I have been in an intimate relationship for the past five years. Although there have been fundamental communication differences, at least the theory of dialectical tensions has been evident through out. There have been tensions which require to be solved constantly. First of all, my partner is from a different religious background, very committed and totally unyielding to compromise. Constantly the practices and doctrines he advocates are against my personal beliefs. On the other hand, I am reserved and although religious, I am not overly given into religiosity as was the case with my partner. Dialectical tensions are manifested in that, while my partner desires to have a baby I do not and often it is a subject of debate, something which has been going on and on for the last three years. Although both of us have learnt how to balance the tensions, it has taken quite a number of strategies and a good measure of effort. First of all, we had to agree on how many kids we were going to have if any. Secondly, we were in different careers with different goals in life. The prospects of marriage and therefore of having to raise a family together implied that one or both of us had to make quick changes to career path and it turned out to be me. This obviously was the last thing I had anticipated for and my family members as well as close friends were very much against such a decision. So a decision had to be made and for that matter very fast. To achieve a balance of the contradictions I had to balance between what I wanted for my relationship versus what my friends and family wanted for me. I also had to balance between the career and the prospects of changing as well as the cost that goes with raising a well rounded family. I also had to balance between being faithful and obedient to my spouse and being truthful to myself. Integration/separation. The fact that I was changing career paths in order to be together with my spouse meant that, I was undergoing a major dilemma as far as sacrificing my identity was concerned. We were going to integrate into marriage and therefore someone if not both of us needed to make some sacrifices. I made some. In terms of the advice and discouragement from my friends, I had to ignore their pleas. This was a separation in that, my decision which was final was against their advice and therefore a separation resulted. Stability/change. Having underwent several relationships which were all intimate, switching or at least breaking one and later forming another was a change in itself. This resulted into stability tension in that. Every time I entered into a relationship, I never wanted to break it even if it seemed like it was not headed into a marriage. There was and imminent fear of life without this and that partner and this was a major cause of stability tension for me. Expression/privacy. This tension has continued to grip me to date, disclosing to my partner something has never been easy especially when the consequences are not clear and are unpredictable. In my current relationship, I am the private one while my partner is the open one. While my partner can virtually open up about any issue however damaging or secret, I always find myself struggling to do that. It takes a lot of pestering to get information out of me especially when I consider the information potentially damaging. Strategies of responding to the above tensions. The strategies discussed here are real and have worked for me. In my relationship whereby the partner and I have major differences, including religious beliefs, I had to select to hang by my feelings and choice of action. It was not going to join my partners bandwagon and subscribe to the religious sect he belonged to. This eventually worked as he later accepted my choice. If I had acted in order to please him, I was going to suffer. I would have just sacrificed too much for nothing. In that, my strategy worked. By sticking to my position but still maintaining the relationship, I learnt how to cope with the tension of differences. In all other relationships before marriage, I ended up adopting separation strategy hence the reason why I would break up if a relationship was not working. Reaffirmation to me was not an ideal strategy in my relationship, although I hold the view that, it is applicable in cases whereby a spouse may be sickly but however serious the condition, the loved ones look up to the person getting well one day. In some cases it could be that, a relationship is abusive and a partner keeps on promising that they will change although actually nothing ever happens. Reframing again for me is a strategy I use in my current situation whereby I look at the demands of my relationship differently and therefore gives a new meaning to every contradiction. The tension of having to change career path so as to marry was a dialectical tension I overcame using the reframing strategy. Conclusion. Dialectical theory is very much effective for relationships and I would suggest it to all of the buddies out there who are undergoing hard times in their relationships. From the meanings to the strategies, an in-depth solution to tensions is offered. Therefore theoretical theory is an ideal alternative to solving crisis in relationships.

Filter, Power Divider

Outline 1.? Introduction 2.? Literature Review – Transmission Lines (Microstrip Line/ CPW/ SIW) – Resonator, Filter, Power Divider 3. SIW Resonator Designs – Comparison of Transmission Line Performance – Design, Result and Discussion of SIW Resonators 4.? SIW Filter and Power Divider Designs – Design, Result and Discussion of SIW Filter and Power Divider 5. Conclusion and Recommendations 1 Outline 1.? Introduction 2.? Literature Review – Transmission Lines (Microstrip Line/ CPW/ SIW) – Resonator, Filter, Power Divider 3. SIW Resonator Designs Comparison of Transmission Line Performance – Design, Result and Discussion of SIW Resonators 4.? SIW Filter and Power Divider Designs – Design, Result and Discussion of SIW Filter and Power Divider 5. Conclusion and Recommendations 2 1. Introduction †¢? Background O As consequence of the rapid development in wireless communication market, various devices need to integrate wirel ess standards.Demand on wireless devices to support these multi-standard operations with [2]  § Low insertion loss  § sharp selectivity  § Proper compact size  § Low cost O Band-pass filters  § primarily used in wireless transmitters and receivers  § imit the bandwidth of the output signal to the minimum necessary to convey data at the desired speed and in the desired form  § also used in bio-photonic, medical analytical, chemical, pharmaceutical area etc O Power dividers  § passive microwave components used for power division  § Divide input signal into two signals of lesser power. The coupler may be a three port component with or without loss  § usually of the equal-division type, which is 3dB, but unequal power division ratio is also possible [4] 3 1. Introduction †¢? Motivation O Why 60GHz  § First published by Indian physicist J. C. Bose 1895  § In 1947, US physicist J.H. Van Vleck observed that the oxygen molecule absorbs electromagnetic more energ y at 60-GHz than at other frequencies [6]  § Mainly driven by military and space applications 1960s to 1980s [7]  § From mid-1990s, interest in fixed broadband wireless access for last mile connectivity advanced 60-GHz radio technology [8] O Why SIW filter and power divider  § Conventional technologies: either not able to present required performance or too expensive  § SIW: as an attractive technology for low cost, high Q-factor, relatively high power, and high density integration of microwave and millimeter-wave components and sub-systems [10]-[12]. SIW filters have a low in-band insertion loss and a wide stopband performance.  § SIW power dividers not only achieve the small size but also realize transmitting a defined amount of the electromagnetic to another two ports.4 1. Introduction †¢? Objective O Study literature review of structures, applications and analyzing methods of SIW O Investigate the basic structure of different transmission lines by designing reson ators O Extend the synthesis method to design of SIW filter and power divider †¢? †¢? Design and discuss SIW Filter at 60GHz with bandwidth 3 GHz Design and discuss SIW Power divider at 60GHz with 3 GHz Outline 1.? Introduction 2.? Literature Review – Transmission Lines (Microstrip Line/ CPW/ SIW) – Resonator, Filter, Power Divider 3. SIW Resonator Designs – Comparison of Transmission Line Performance – Design, Result and Discussion of SIW Resonators 4.? SIW Filter and Power Divider Designs – Design, Result and Discussion of SIW Filter and Power Divider 5. Conclusion and Recommendations 6 2. Literature Review †¢? Transmission Line O A device designed to carry electric energy from one to another, is used to transfer the output radio frequency energy of a transmitter to a receiver [15]. ? Microstrip Line OOne of the most popular types of the electrical TLs O convey microwave-frequency signals O support a good quasi-TEM wave O In practi cal applications, the dielectric substrate is electrically very thin, which is much smaller than the wavelength 7 2. Literature Review †¢? Coplanar Waveguide (CPW) O Characteristic dimensions of a CPW are the central strip width W and the width of the slots s. GCPW is formed when a ground plane is provided on the opposite side of the dielectric. O CPW is easy to be integrated in the IC design. O Conventional Technologies: †¢? ? CPW GCPW †¢? Substrate Integrated Waveguide (SIW) Mircostrip/CPW/GCPW: small size but not efficient enough in high frequency applications, wavelength at high frequencies are small Retangular waveguide: high Q-factors and power capability but voluminous and difficult for highdensity integration and difficult manufacturing process O SIW is a transition between microstrip and dielectric-filled waveguide.Dielectric filled waveguide is converted to SIW by the help of vias for the side walls of the waveguide [2] †¢? high Q-factor, low insertion loss, and high power capability 8 . Literature Review †¢? Resonator O A device exhibits behavior of oscillating at some frequencies, called its resonant frequencies, with greater amplitude than at others. †¢? †¢? It is used to either generate waves of specific frequencies or select specific frequencies from a signal [4].Resonant frequencies O Quality- or Q-factor is defined as a dimensionless parameter, in terms of the ratio of the energy stored in the resonator to the energy supplied by a generator per cycle, describing how under-damped a resonator is [4]. †¢? The unloaded Q-factor (Qu) [21] 2. Literature Review †¢? Filter O Band-pass filter is a device that passes frequencies within a certain range and attenuates frequencies outside that range [4]. O SIW is constructed with linear arrays of metalized via-holes rooted in the same substrate used for the planar circuit [13]. SIWs, combines the merits of all these structures, microstrip line or coplanar wavegu ide, and rectangular waveguide, are built onto the same substrate. The transition is formed with a comparable straightforward matching geometry between both structures. †¢? Power Divider OPower divider, a passive device used in the field of radio technology, couples a defined amount of the electromagnetic power in a transmission line to another port [27]. O SIW power divider, with optimum frequency selectivity, small size, low cost and high stopband attenuation, have been used for mobile and satellite communications systems. T-junction Y-junction 10 Outline 1.? Introduction 2.? Literature Review – Transmission Lines (Microstrip Line/ CPW/ SIW) – Resonator, Filter, Power Divider 3. SIW Resonator Designs – Comparison of Transmission Line Performance – Design, Result and Discussion of SIW Resonators 4.?SIW Filter and Power Divider Designs – Design, Result and Discussion of SIW Filter and Power Divider 5. Conclusion and Recommendations 11 3. SIW R esonator Designs †¢? Comparison of Transmission Line Performance Microstrip Line CPW SIW 12 3. SIW Resonator Designs †¢? Comparison of Transmission Line Performance Characteristic Bandwidth Q factor Loss Power capacity Physical size Ease of fabrication Integration with other component Cost Waveguide Narrow High Low1 High Large, heavy Hard Hard4 High Microstrip Wide Low High Low Small Easy2 Easy5 Low CPW Wide Low High Low Small Fair3 Easy6 Low SIW Narrow High Low High Small Fair Easy LowAnnotation [4]: †¢? Dielectric of waveguide is air; Skin effect of waveguide is small †¢? Microstrip can use printed circuit board technology †¢? Ground of CPW locates at the top, the discontinuity will affect the result. However, compared to SIW, wire holes are not needed. †¢? Special couplings at the joints are required for waveguide to assure proper operation †¢? Microstrip is susceptible to cross-talk and unintentional radiation †¢? CPW presents greater isol ation than microstrip 13 3. SIW Resonator Designs †¢? Design of SIW Resonators – Substrate dielectric constant (? r) is fixed at 11. Silicon – Copper conductivity of 5. 800Ãâ€"107 siemens/m O Design Strategy of Single-row Via SIW Resonator For a resonant frequency of 60 GHz for the TE101 dominant mode by simply indexing m =1, n = 0, l = 1 [18] The calculation result is L = W = 1. 025mm. 14 3. SIW Resonator Designs †¢? Design of SIW Resonators O Result and Discussion of Single-row Via SIW Resonator Ideal material: Lossless substrate and perfect conductor The loss tangent of AGC and the bulk conductivity of Silicon are both set to be zero. Moreover, perfect conductor layers are placed at most top and bottom of the structure.Similarly, the material of metallic vias is defined as perfect conductor as well. By using as as illustrated earlier, the result is calculated In this ideal case, and involved. Based on the formula, are not radiation Q-factor is 492. 23 15 3. SIW Resonator Designs †¢? Design of SIW Resonators O Result and Discussion of Single-row Via SIW Resonator Non-ideal material: Only with conductor loss For substrate, dielectric loss tangent of AGC and bulk conductivity of Silicon are set to be zero. The copper layers with bulk conductivity of 5. *107 siemens/m are placed at most top and bottom of the structure. Moreover, the material of via is changed to copper as well. By using calculated as as illustrated earlier, the result is In this case, is not involved. Based on the formulas, we can get 16 3. SIW Resonator Designs †¢? Design of SIW Resonators O Result and Discussion of Single-row Via SIW Resonator Non-ideal material: Lossy substrate and non-perfect conductor set the loss tangent of AGC is fixed at 0. 003 and bulk conductivity of Silicon is 0. 02, which means all the loss of substrate is considered in this experiment.Meanwhile, the copper is defined as the material of layers, which are placed at most top and bott om of the structure and via defenses through the substrate. In this experiment, all losses, including radiation loss, non-ideal metal loss and substrate loss are considered here. By using , we have 17 3. SIW Resonator Designs †¢? Design of SIW Resonators – Substrate dielectric constant (? r) is fixed at 11. 9 Silicon – Copper conductivity of 5. 800Ãâ€"107 siemens/m O Design Strategy of Double-row Via SIW Resonator For a resonant frequency of 60 GHz for the TE101 dominant mode by simply indexing m =1, n = 0, l = 1 [18]The calculation result is L = W = 1. 025mm. 18 3. SIW Resonator Designs †¢? Design of SIW Resonators O Result and Discussion of Double-row Via SIW Resonator Ideal material: Lossless substrate and perfect conductor The loss tangent of AGC and the bulk conductivity of Silicon are both set to be zero. Moreover, perfect conductor layers are placed at most top and bottom of the structure. Similarly, the material of metallic vias is defined as perfect conductor as well. By using calculated as as illustrated earlier, the result is In this ideal case, and involved. Based on the formula, are not radiation Q-factor equals to 641. 6 19 3. SIW Resonator Designs †¢? Design of SIW Resonators O Result and Discussion of Double-row Via SIW Resonator Non-ideal material: Only with conductor loss For substrate, dielectric loss tangent of AGC and bulk conductivity of Silicon are set to be zero. The copper layers with bulk conductivity of 5. 8*107 siemens/m are placed at most top and bottom of the structure. Moreover, the material of via is changed to copper as well. By using calculated as as illustrated earlier, the result is In this case, is not involved. Based on the formulas, we can get 20 3. SIW Resonator Designs †¢? Design of SIW Resonators OResult and Discussion of Double-row Via SIW Resonator Non-ideal material: Lossy substrate and non-perfect conductor set the loss tangent of AGC is fixed at 0. 003 and bulk conductivity of Si licon is 0. 02, which means all the loss of substrate is considered in this experiment. Meanwhile, the copper is defined as the material of layers, which are placed at most top and bottom of the structure and via defenses through the substrate. In this experiment, all losses, including radiation loss, non-ideal metal loss and substrate loss are considered here. By using , we have 21 3. SIW Resonator Designs †¢? Design of SIW ResonatorsO Comparison of Single-/Double-row Via Resonator Double-row via structure obviously decreases the loss compared to single-row via. The main difference of Q-factors is the radiation Q-factor, which means the radiation loss is the most affection of the SIW. Conductor and dielectric Q-factor are only slightly changed with the error around 3. 5% from the single- to double-row SIW. Hence, the conductor loss and dielectric loss basically are not significant issue for the losses of the SIW comparing with the radiation loss because of the leakage through the gaps since the presence of gaps in the side walls.These results also match that higher Q-factor indicates a lower rate of energy loss relative to the stored energy, which demonstrates the validity of the experiments and the results. 22 Outline 1.? Introduction 2.? Literature Review – Transmission Lines (Microstrip Line/ CPW/ SIW) – Resonator, Filter, Power Divider 3. SIW Resonator Designs – Comparison of Transmission Line Performance – Design, Result and Discussion of SIW Resonators 4.? SIW Filter and Power Divider Designs – Design, Result and Discussion of SIW Filter and Power Divider 5. Conclusion and Recommendations 23 4. SIW Filter and Power Divider Designs †¢?Design of SIW Filters O Design strategy of SIW filter The proposed filter is constructed based on the SIW resonator at 60 GHz. The filter is designed and simulated using HFSS software. †¢? †¢? †¢? To achieve a -3 dB bandwidth of 3 GHz. To achieve a good passband wi th small insertion loss 15 dB Here in filter structure, length doubles the size which is 2. 250mm and width w remains the same 1. 025mm. 24 4. SIW Filter and Power Divider Designs †¢? Design of SIW Filters O Result and Discussion of SIW filter When increasing the distance between the middle of the vias, the two resonant poles are separated to each other more. 25 4.SIW Filter and Power Divider Designs †¢? Design of SIW Filters O Result and Discussion of SIW filter †¢? †¢? †¢? †¢? Center frequency = 62. 9 GHz. Bandwidth = 3. 4 GHz (60. 8 ~ 64. 2 GHz). Insertion loss = 0. 89 dB within the passband. Return loss = 17. 8 dB within the passband. †¢? Achieve a wide and deep upper-stopband with an insertion loss >15. 0dB. 26 4. SIW Filter and Power Divider Designs †¢? Design of SIW Power Dividers O Design strategy of SIW power dividers The proposed filter is constructed based on the SIW resonator at 60 GHz. The filter is designed and simulated using HFSS software. †¢? †¢? †¢? To achieve a -3 dB bandwidth of 3 GHz.To achieve a good passband with small insertion loss around 3 dB To achieve a wide and deep upper-stopband with an insertion loss >15 dB The proposed Y-junction power divider is a SIW equivalent of a bifurcated waveguide junction fed by a symmetrical step junction. The distance between two discontinues can be optimized to achieve low insertion loss [28]. 27 4. SIW Filter and Power Divider Designs †¢? Design of SIW Power Dividers O Result and Discussion of SIW power dividers †¢? †¢? †¢? †¢? Center frequency = 62. 5 GHz. Bandwidth = 3. 7 GHz (60. 5 ~ 64. 2 GHz). Insertion loss = 3. 87 dB within the passband. Return loss = 10. 5 dB within the passband. †¢? Achieve a wide and deep upper-stopband with an insertion loss >15. 0dB. 28 Outline 1.? Introduction 2.? Literature Review – Transmission Lines (Microstrip Line/ CPW/ SIW) – Resonator, Filter, Power Divide r 3. SIW Resonator Designs – Comparison of Transmission Line Performance – Design, Result and Discussion of SIW Resonators 4.? SIW Filter and Power Divider Designs – Design, Result and Discussion of SIW Filter and Power Divider 5. Conclusion and Recommendations 29 4. Conclusion and Future Works †¢? Conclusion O SIW single- and double-row resonators have been designed and compared.The results matched that higher Q-factor indicates a lower rate of energy loss relative to the stored energy, which demonstrates the validity of the experiments and the results. O W band SIW filter has been designed, evaluated and optimized by HFSS software. The centre frequency of the proposed filter is designed at 62. 9 GHz with a 3 dB bandwidth of 3. 4 GHz (60. 8~64. 2 GHz). O W band SIW power divider has been realized based on the structure of the filter. The power divider is at centre frequency 62. 5 GHz with a 3 dB bandwidth of 3. 7 GHz from 60. 5 to 64. 2 GHz. 30 4. Conclusi on and Future Works †¢?Recommendation for Future Works O The numerical analysis may be done for the proposed structures. O The structures can be fabricated and measured to demonstrate the practical realization of the structures. O The insertion loss the filter may be improved based on further modification. O It is possible to widen the bandwidth of the filter. O Other matching networks may be considered to realize better performance of the filter. O Small and efficient filters may be designed based on the modification of the proposed structure. O Balun may be designed based on the proposed SIW power divider. 31 Thank You! 32

Week 7 Conference Essay Example | Topics and Well Written Essays - 750 words

Week 7 Conference - Essay Example Hemoglobin is the blood protein that transports oxygen (Cohen, 2013). Blood identification process gets referred to as ABO typing. The type of blood one has depends on the presence of blood proteins known as antigens in the red blood cells. The first step involves blood getting drawn from an individual and gets mixed with antibodies to determine the blood type (Cohen, 2013). The blood type gets determined on whether the blood agglutinates with the antibodies. The second step is called back typing where the liquid part of the blood gets mixed with blood that is either type A or B. Blood typing also gets carried out to determine the presence of rhesus factor on red blood cell surface. Jim got triaged in the resuscitation area. The staff present was a physician and two nurses. The physician who can be an M.D or D.O oversees the patient’s condition by conducting tests on the patient. The nurses administer the drugs to Jim as indicated by the physician. Aspirin got provided to Jim to act as an anticoagulant to prevent further clotting if possible. Morphine got provided to relieve pain or discomfort experienced by Jim. Nitroglycerine also gets provided to decrease blood pressure and increase blood flow by opening up blood vessels around the heart (Cohen, 2013). tPA gets provided to break down clots in the bloodstream around the heart. Principles of coronary bypass surgery: bring blood and oxygen to the heart muscle by creating a ‘bridge’ through a healthy artery. The blood passes over the blocked artery to ensure a normal blood flow down the blocked area. A heart attack refers to a situation where there is the occurrence of a sudden blockage in the coronary artery. This causes a stoppage of blood flow towards the heart muscle. This condition damages the heart muscle causing improper function of the heart. Heart failure implies that the heart’s pumping power is lower than normal (Cohen, 2013).