Difficulties Facing The Educational Supervision Processes In The Public Schools Of The Governorate Of Jarash Directorate Of Education

This study attempts to identify the difficulties facingthe educational supervision processes in the public schools of the Directorateof Education at Jarash Governorate, Jordan, by surveying the principals ofthese schools.  The sample size consistedof (143) male and female principals in the Governorate of Jarash Directorate ofEducation.  In order to achieve theobjectives of this study, a questionnaire was constructed to identify thedifficulties facing the educational supervision processes and consisted of (41)items that were distributed over three difficulty domains: administrative,technical and financial.  The validityand reliability of the questionnaire was verified.  The results reveal a medium degree ofdifficulty facing the educational supervision processes.  Financial difficulties domain ranked firstwith a high degree, technical difficulties came in second with a medium degree,and finally administrative difficulties domain came in last with a mediumdegree. The results indicated no statistically significant differencesattributed to the gender variable on the instrument performance as a whole.  There is a statistically significantdifferences attributed to the years of experience, in favor of the experiencedprincipals (10 years more).  In the lightof these results, the researchers recommend (1) initiation of financial andoccupational incentives for distinguished educational supervisors, (2) initiatecourses and workshops on the contemporary supervision trends; and (3) vitalizeelectronic communication among the educational supervisors and male and femaleprincipals of the schools, through exchanging the experience and information asa feedback, in order to overcome the difficulties facing the educationalsupervision in the schools

Voltage security evaluation based on perturbation method

This is the post-print version of the final paper published in International Journal of Electrical Power & Energy Systems. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. Copyright @ 2009 Elsevier B.V.This paper proposes a new algorithm for estimating voltage security margin. The algorithm is based on the perturbation method and has significant computational efficiency. The proposed algorithm can be used for on-line voltage security evaluation. It has been validated using IEEE-14, IEEE-30 and IEEE-57 bus systems. Results from the tests show higher efficiency and smaller error margins compared to continuation power flow (CPF) method. Voltage collapse is a serious threat to the security of stressed power systems; therefore, voltage security (VS) has become a major challenge for management of power systems. The motivation for this research is a direct consequence of the deregulation of electricity industries and markets worldwide

Tarn Crochet Keranjang rajut : Kreasi dari Limbah Tali Tekstil

vi, 96 hlm.; ill.; 21 c

Rajut 3D

vi, 138 hlm,: 21 c

Tarn crochet : Keranjang rajut

Buku ini menampilkan kreasi keranjang mutlitungsi yang bisa Anda buat dan praktikkan dengan mudah. Percayakah jika teknik ini awalnya menggunakan bahan limbah kaos tekstil pabrik? Karena menjadi barang sisa, crafter di luar negeri memanfaatkannya menjadi barang yang lebih berguna, misal keset. Dan, semakin berkembangnya peradaban dan inspirasi fashion, keset ini pun berganti rupa menjadi clutch yang menawan