Model representation in the PANCOR wall interference assessment code

An investigation into the aircraft model description requirements of a wall interference assessment and correction code known as PANCOR was conducted. The accuracy necessary in specifying various elements of the model description were defined. It was found that the specified lift coefficient is the most important model parameter in the wind tunnel simulation. An accurate specification of the model volume was also found to be important. Also developed was a partially automated technique for generating wing lift distributions that are required as input to PANCOR. An existing three dimensional transonic small disturbance code was modified to provide the necessary information. A group of auxiliary computer programs and procedures was developed to help generate the required input for PANCOR

Soft public key cipher

Encryption in general is the process of keeping up the secrecy of data (both fixed and versatile) utilizing programs that can Convert and make an interpretation of that data into codes so that whenever got to by unapproved people doesn't They can comprehend anything since what appears to them is a blend of images, numbers and unlimited characters, the file is encrypted And decryption by password, which must be known to both parties (sender and receiver) This is called With symmetric encryption, Decryption means decryption. The quality and viability of encryption rely upon two key factors: the algorithm, and the key length evaluated by Bit, the higher the bit, the greater the security and difficulty of decrypting. The concept of soft set was studied and applied on the public key cryptography like simple Knapsack and Trapdoor Knapsack ciphers. Significant results were presented that was the measure of the evaluate encryption using the SNR and PSNR

Wall interference and boundary simulation in a transonic wind tunnel with a discretely slotted test section

A computational simulation of a transonic wind tunnel test section with longitudinally slotted walls is developed and described herein. The nonlinear slot model includes dynamic pressure effects and a plenum pressure constraint, and each slot is treated individually. The solution is performed using a finite-difference method that solves an extended transonic small disturbance equation. The walls serve as the outer boundary conditions in the relaxation technique, and an interaction procedure is used at the slotted walls. Measured boundary pressures are not required to establish the wall conditions but are currently used to assess the accuracy of the simulation. This method can also calculate a free-air solution as well as solutions that employ the classical homogeneous wall conditions. The simulation is used to examine two commercial transport aircraft models at a supercritical Mach number for zero-lift and cruise conditions. Good agreement between measured and calculated wall pressures is obtained for the model geometries and flow conditions examined herein. Some localized disagreement is noted, which is attributed to improper simulation of viscous effects in the slots

Synthesis and Structural Characterization of Cr2O3 Nanoparticles Prepared by Using Cr(NO3)3.9H2O and Triethanolamine Under Microwave Irradiation

In this study, Chromium oxide nanoparticles (Cr2O3-NPs) was prepared by sol-gel method, using Cr(NO3)3.9H2O as a Precursor material, triethanolamine (TEA) as a template and water as green solvent under microwave irradiation . X- ray diffraction (XRD), Scanning electron microscopy (SEM), Rietveld refinement and Fourier Transform Infrared spectroscopy (FTIR) were employed to characterize the average  crystallite size, crystalline structure, morphology, unit cell parameters and chemical groups of the annealed powder. From  XRD data and Dicvol 91 software analysis, the crystal system was found to be rhombohedral structure for samples. The average  crystallite size is calculated by using Debye-Scherrer formula, crystallites size and strain are calculated by using Williamson-Hall formula. The effect of particle size on the crystal lattice distortion ratio, specific surface area, dislocation density and number of unit cell was discussed. A good agreement is between XRD data and FIR data. The qualitative phase analysis is performed by Rietveld analysis using “Fullprof” program of Cr2O3-NPs. Keywords: Cr2O3, Nanoparticles,  Sol – Gel , Structural Properties, Rietveld refinement

Estimation of some Immunological Factors in Pulmonary Tuberculosis Patients

هدفت هذه الدراسة إلى تقييم بعض معايير المناعة الخلوية لمرضى التدرن الرئوي من خلال تقدير مستويات الانترلوكينات IFN-γ )وIL-10و( IL-12   وتقدير فيتامين. D3  تم خلال الدراسة جمع عينات الدم من 50 مريضا بالتدرن الرئوي من المراجعات الى العيادة الاستشارية للأمراض الصدرية في الحلة -محافظة بابل خلال الفترة مابين شهر شباط 2016 إلى شباط 2017. ومن بين مرضى التدرن الرئوي، كان هناك 27 ذكور و23 إناث، وعمر المرضى يتراوح بين 12-80 عاما. تم قياس السايتوكينات وفيتامين D3باستخدام تقنية الاليزا. أظهر متوسط ​​تركيز مصل الدم IL-10  وIL-12 أن هناك زيادة معنوية (p˂ 0.05) في مرضى التدرن الرئوي بالمقارنة مع مجموعة السيطرة (4.024 و1.049) بغ / مل , (51.563 و13.514) بغ / مل على التوالي.  في حين لم يظهر متوسط ​​تركيز مصل IFN-γ زيادة معنوية (p˃0.05) في مرضى التدرن الرئوي مقارنة بمجموعة السيطرة (36.505 و25.019) بغ / مل. أظهر متوسط ​​تركيز مصل الدم ل VD3 انخفاضا معنويا (p ˂ 0.05) في مرضى التدرن الرئوي مقارنة بمجموعة السيطرة (18.186 و29.321) نغ/ لThis study aimed to assess the status of cell mediated immunity for pulmonary tuberculosis patients through evaluation levels of Interleukins (IFN-γ ,IL-10, IL-12) and estimation vitamin D3 . Whole blood samples collected from 50 pulmonary tuberculosis patients who are admitted to consultant clinic for respiratory diseases in Hilla – Babylon province during the period from February 2016 to February 2017. Out of the pTB patients, there were 27 males and 23 females, the patients age range was between 12-80 years. Cytokines levels and vitamin D3 estimated by using ELISA technique. The mean of serum concentration of IL-10  and IL-12 revealed that there is a significantly increased (p˂ 0.05) in pulmonary tuberculosis patients as compared to controls (4.024 and 1.049)pg/ml (51.563 and 13.514) pg/ml ,respectively. While, the mean of serum concentration of IFN-γ showed no significant increasing (p˃0.05) in pulmonary tuberculosis patients compared to controls (36.505 and 25.019)pg/ml.  The mean of serum concentration of VD3 showed a significant decreasing (p˂ 0.05) in pulmonary tuberculosis patients as compared to controls (18.186 and 29.321) ng/ml. Conclusions: The results provide a good correlation between the levels of  IL-10 , IL-12, IFN-γ and Vitamin D3 with the cellular immunity against pulmonary tuberculosis

Awareness of the Importance of and Adherence to Patients’ Rights Among Physicians and Nurses in Oman: An analytical cross-sectional study across different levels of healthcare

Objectives: This study aimed to determine the extent to which physicians and nurses in Oman were aware of the importance of and adhere to patients’ rights and whether this differed according to role, nationality, position and institutional healthcare level. Methods: This analytical cross-sectional study was carried out between December 2015 and March 2016 at various governmental healthcare institutions in Oman. A self-administered questionnaire was distributed to 1,385 practitioners at all healthcare levels. Results: A total of 1,213 healthcare practitioners (response rate: 87.58%) completed the survey, of which 685 (56.47%) were nurses and 528 (43.53%) were physicians. Overall, awareness of the importance of patients’ rights was high (91.51%), although adherence to these rights in practice was low (63.81%). The right of the patient to be informed was considered least important and was least adhered to (81.2% and 56.39%). Nationality, role and institutional level were significantly associated with awareness (P = 0.002, 0.024 and 0.034, respectively). Non-Omani staff were significantly more likely than Omani staff to be aware of (odds ratio [OR] = 1.696; P = 0.032) and adhere to (OR = 2.769; P <0.001) patient rights. Furthermore, tertiary care staff were twice as likely as primary care staff to perceive the importance of patient rights (OR = 2.076; P = 0.019). While physicians were more likely than nurses to be aware of the importance of patient rights, this difference was not significant (OR = 1.516; P = 0.126). Conclusion: These findings may help inform measures to enhance awareness of and adherence to patients’ rights in Oman.Keywords: Medical Ethics; Patient Rights; Awareness; Adherence; Physicians; Nurses; Oman

Impact of multiscale dynamical processes and mixing on the chemical composition of the upper troposphere and lower stratosphere during the Intercontinental Chemical Transport Experiment–North America

We use high-frequency in situ observations made from the DC8 to examine fine-scale tracer structure and correlations observed in the upper troposphere and lower stratosphere during INTEX-NA. Two flights of the NASA DC-8 are compared and contrasted. Chemical data from the DC-8 flight on 18 July show evidence for interleaving and mixing of polluted and stratospheric air masses in the vicinity of the subtropical jet in the upper troposphere, while on 2 August the DC-8 flew through a polluted upper troposphere and a lowermost stratosphere that showed evidence of an intrusion of polluted air. We compare data from both flights with RAQMS 3-D global meteorological and chemical model fields to establish dynamical context and to diagnose processes regulating the degree of mixing on each day. We also use trajectory mapping of the model fields to show that filamentary structure due to upstream strain deformation contributes to tracer variability observed in the upper troposphere. An Eulerian measure of strain versus rotation in the large-scale flow is found useful in predicting filamentary structure in the vicinity of the jet. Higher-frequency (6–24 km) tracer variability is attributed to buoyancy wave oscillations in the vicinity of the jet, whose turbulent dissipation leads to efficient mixing across tracer gradients

Modification of CDV reactor for carbon nanomaterialns production

Chemical vapour deposition (CVD) reactor is one of the processes commonly used for carbon nanomaterial (CNM) production. This method is economical and provides high yield of good quality CNM. However, improvement of the CVD reactor system was necessary due to its long time requirement to complete each batch of production. A two-stage CVD was designed, locally fabricated and modified to overcome the limitations. Improvements included multistage system, which can be used to perform different processes such as floating catalyst reaction, fixed catalyst process, calcination, reduction and oxidation processes. A cooling system was added to reduce the production time. The system was further modified to increase the adsorption capacity of the products. The time requirement for one batch of run was reduced from 8 hours to 3 hours by improving the system

Temporomandibular Joint Ankylosis as a Complication of Neonatal Septic Arthritis : Report of two cases

Temporomandibular joint (TMJ) ankylosis as a complication of neonatal septic arthritis is rarely reported in the literature. We report two clinical cases of unilateral TMJ ankylosis occurring in paediatric patients subsequent to neonatal septic arthritis. The first case was a 15-month-old male infant who presented to the Sultan Qaboos University Hospital, Muscat, Oman, in May 2010. According to the published English scientific literature, he is the youngest person yet to be diagnosed with this condition. The second case was a five-year-old female who presented to the Al-Nahda Hospital, Muscat, Oman, in October 2011. Both cases presented with facial asymmetry and trismus. They subsequently underwent gap arthroplasty and interpositional temporalis muscle and fascia grafts which resulted in an immediate improvement in mouth opening. Postoperatively, the patients underwent active jaw physiotherapy which was initially successful. Both patients were followed up for a minimum of two years following their surgeries