The presentwork is a theoretical study in the field of charged particle optics. It concentrates on the design of electrostatic enzil lens for focusing charge particles beams, using inverse method in designingthe electrostatic lens. The paraxial ray equation was solved to obtain the trajectory of the particles, the optical properties such as the focal length and spherical and chromatic aberration coefficients were determined. The shape of the electrode of the electrostatic lens were determined by solving poison equation and the results showed low values of spherical and chromatic aberrations, which are considered as good criteria for good design.
Piperine, a crystalline alkaloid compound isolated from Piper nigrum, piper longum, and other types of piper, has had many fabulous pharmacological advantages for preventing and treating some specific diseases, such as analgesic, anti-inflammatory, hepatoprotective, antimetastatic, antithyroid, immunomodulatory, antitumor, rheumatoid arthritis, osteoarthritis, Alzheimer's, and improving the bioavailability of other drugs. However, its potential for clinical use through oral usage is hindered by water solubility and poor bioavailability. The low level of oral bioavailability is caused by low solubility in water and is photosensitive, susceptible to isomerization by UV light, which causes piperine concentration to decrease. Many different
... Show MoreThis research basically gives an introduction about the multiple intelligence
theory and its implication into the classroom. It presents a unit plan based upon the
MI theory followed by a report which explains the application of the plan by the
researcher on the first class student of computer department in college of sciences/
University of Al-Mustansiryia and the teacher's and the students' reaction to it.
The research starts with a short introduction about the MI theory is a great
theory that could help students to learn better in a relaxed learning situation. It is
presented by Howard Gardener first when he published his book "Frames of
Minds" in 1983 in which he describes how the brain has multiple intelligen
This paper is dealing with an experimental study to show the influence of the geometric characteristics of the vortex generators VG son the thickness of the boundary layer (∂) and drag coefficients (CD) of the flat plate. Vortex generators work effectively on medium and high angles of attack, since they are "hidden" under the boundary layer and practically ineffective at low angles.
The height of VGs relative to the thickness of the boundary layer enables us to study the efficacy of VGs in delaying boundary layer separation. The distance between two VGs also has an effect on the boundary layer if we take into
... Show MoreWaste is the most common phenomenon in the educational systems. Such a waste should reduce its efficiency and weaken its productivity which is best represented by failing and dropouts .thus resources meant to develop the educational institutions quality and quantity–wise would be wasted .in other words the return of the investments allotted to develop the educational system would fall short of the aims . The consequences would worst in the primary learning field. The research has three chapters: The first chapter is about significance of the research and its aims in addition to a review of literature. The second chapter is about the concept of dropping out of schools in the primary learning sector plus a history of the phenomenon .Thir
... Show MoreTrading global discourse topic as one of the other entrances to world peace, and the most important reasons for co-existence of intellectual and lumpy, and there Important issue related to a fundamental issue of the other cases are denied and the exclusion of others, Trading global discourse topic as one of the other entrances to world peace, and the most important reasons for co-existence of intellectual and lumpy, and there Important issue related to a fundamental issue of the other cases are denied and the exclusion of others, The stories of the prophets and their people the position of calling them and thought the new Massadik it. have found through research that there are two types of methods in the exclusion are as follows:
... Show MoreThis research in the philosophy of ethics, we have written under the title (Sensory And Mental Dialogue In The Philosophy Of Ethics -Criticism And Analysis-). Consists of three sections; first: talked dealt within the second part; we writhe about controversial consepts of sensory and mental. Then we about the concept of common philosophical doctrines, either in the third section we talked about the concept of the mind doctrines that secured sence mainly studies in philosophy. The purpose for which our finding in this research is to show that undeniable sense or exceeded in any doctrine of mentale doctrines, just as the mind can not be bypassed or undeniable doctrines sensory ... So as to complete the theory that we have in our thesis to
... Show MoreThe theme of unity of the topics that figured prominently Quran, cited preachers and scholars verses function on the unity and sense, to lift the nation from Hdtha, saved from the crisis, in an attempt to reunite and heal the rift, and re nation to unity and strength, and conduct on the path religion True, The Quran the unit is the Constitution of the Islamic nation and a safety valve, a strong rope of God. The following us in our research and Rod talk about it lonely in the Quran, and the statement of some form, and means its findings, including: (obey Allah and His Messenger, and referring to the Quran and Sunnah, and talk by saying better, reform between the brothers, call wisdom and good advice, etc.. ..), as Pena main obstacles and
... Show MoreUnderstanding of in-situ stress profiles and orientations plays a vital role in designing a successful hydraulic fracturing treatment. This paper is an attempet to examine the effect of lithology and in situ stress on geometery of hydraulic fractures. A hydraulic fracturing design simulator software called FracproPT with various capabilities for designing most of hydraulic fracture was used for simulate and optimize the hydraulic fracturing. For studying purpose, three different cases of stress gradient contrast between different formations are considered in this study (0.4, 0.5 and 0.75 psi/ft). The results obtained from the simulator showed that lithologies surrounding the pay zone have an effect on the fracture
... Show MoreIn this research, the effect of changing the flood level of Al-Shuwaija marsh was studied using the geographic information systems, specifically the QGIS program, and the STRM digital elevation model with a spatial analysis accuracy of 28 meters, was used to study the marsh. The hydraulic factors that characterize the marsh and affecting on the flooding such as the ranks of the water channels feeding the marsh and the degree of slope and flat areas in it are studied. The area of immersion water, the mean depth, and the accumulated water volume are calculated for each immersion level, thereby, this study finds the safe immersion level for this marsh was determined.
The interests toward developing accurate automatic face emotion recognition methodologies are growing vastly, and it is still one of an ever growing research field in the region of computer vision, artificial intelligent and automation. However, there is a challenge to build an automated system which equals human ability to recognize facial emotion because of the lack of an effective facial feature descriptor and the difficulty of choosing proper classification method. In this paper, a geometric based feature vector has been proposed. For the classification purpose, three different types of classification methods are tested: statistical, artificial neural network (NN) and Support Vector Machine (SVM). A modified K-Means clustering algorithm
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