Economics Essay Example | Topics and Well Written Essays - 500 words - 11

Economics - Essay Example in terms of taking care of customers in order to retain their loyalty and administrating other business matters. If county size is small then there are less residents in the county, and county administration can easily take care of the needs of county residents, as a result residents remain loyal and do not think about migrating from there. As the residents in a small county are few in numbers, the county administration can have close contact with them. It can listen to there problems carefully and can redress them if it thinks them justified. Due to better understanding between a resident and administration the chance of resident’s disloyalty and disappointment are reduced. Other advantage claimed by Small County is that it can more easily deal with a problem than a large county. For example if a problem of water occurs in county, a small sized county can better deal with this problem due to its small size than a large county. Secondly, as the size of county increases another issue about providing facilities like water, security, gas etc. is also raised that is, will the county administration be able to fulfill all the needs of the residents in return of taxes e.g. property tax, paid by the residents. If the size of county increases it will be very difficult for county’s administration to fairly administrate the system of taxation. 2. If the investors are permitted then how county board will provide necessary facilities e.g. water etc., in return of taxes and funds paid by residents. As county already lacks sufficient water to support such a population increase, as a result residents can be disloyal. In this situation, how it would be possible for county board to raise sufficient funds for wanted

Multiphoton Excitation for organic complex Essay

Multiphoton Excitation for organic complex - Essay Example wo photon absorption active; but, it is not guaranteed that they will exhibit interesting and useful three photon absorption properties such as frequency up-converted lasing [10]. Based on this reason, our University Department of Chemistry Prof Ricky Wong Man Shing and his student Dr.Xin Jiang Feng have developed and synthesized a new set of organic complexes p-PhN-OF(n)-TAZ n = 2 to 6 from deep investigation and collection of fundamental information and applications such as multi-photon properties and multi-photon cavityless lasing etc. The most important aspect is that it can let us explore and understand the more Physics behind the discovery. In this chapter, am going to analyse the use of p-PhN-OF(n)-TAZ series for a set of nonlinear optical experiments to verify the multi-photon properties. The p-PhN-OF(n)-TAZ series are type of D-ï  °-A using oligofluorenes (OF) as a ï  ° conjugated core end capped in which D is the end capped with the electron – donating diphenylam ino group and the unconventionally employed electron-deficient 1,2,4-triazole (TAZ) derivates as an acceptor designed and synthesized for multiphoton absorption investigation [10]. The electron was pushed from Donor (D) to pull side of Acceptor (A) in the ï  °- conjugation system which is called intramolecular charge transfer. In addition, the size of length of conjugation is related to enhance the cross section value of two-photon absorption and three-photon absorption [11]. Unless, the value of cross section is reach to saturation level. Under fig 4.1, the linear absorption spectra of the organic materials p-PhN-OF(n)-TAZ series (n = 2 ~ 6) was dissolved in Toluene solution, the series exhibits the two absorption peaks characteristics. The weak absorption peak appears around 300-310 nm attributed to the nï‚ ®Ã¯  °* transition of triarylamine moieties and the broad absorption band spanning from 378-415 nm corresponds to the ï  °Ã¯â€š ®Ã¯  °* transition of fluorene-based ï  °-conjugated core. The