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Videos by Mohammad Aemal Umar

FP-CIC V2.0, ASPHALT SURFACED ROADS AND PARKING LOTS, The solution for automatic asphalt roads ... more FP-CIC V2.0, ASPHALT SURFACED ROADS AND PARKING LOTS,
The solution for automatic asphalt roads and parking lots condition analysis. easy, fast, and scientific. Based on the ASTM D6433

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Papers by Mohammad Aemal Umar

We explicitly prove that the transfer matrix of a finite layered PTPTPT-symmetric system of fix len... more We explicitly prove that the transfer matrix of a finite layered PTPTPT-symmetric system of fix length LLL consisting of NNN units of the potential system `$+iV$' and `$-iV$' of equal thickness becomes a unit matrix in the limit NrightarrowinftyN \rightarrow \inftyNrightarrowinfty. This result is true for waves of arbitrary wave vector kkk. This shows that in this limit, the transmission coefficient is always unity while the reflection amplitude is zero for all waves traversing this length LLL. Therefore, a free space of finite length LLL can be represented as a PTPTPT-symmetric medium.

Additional file 1: Table S1. Comparison of HCV-related HCC Patients who received IFN and DAA ther... more Additional file 1: Table S1. Comparison of HCV-related HCC Patients who received IFN and DAA therapy. Table S2. HCV anti-body test details 1.

The Professional Medical Journal, 2020

Objectives: The aim of this study is to compare two plate fixation and one plate along with arch ... more Objectives: The aim of this study is to compare two plate fixation and one plate along with arch bar in the treatment of parasymphsis, and to analyze the advantages and disadvantages over one another. Study Design: Randomized Clinical Trial. Setting: Department of Oral and Maxillofacial Surgery Sardar Begam Dental College and Northwest General Hospital Peshawar. Period: Over a period of one year from June 2017 to August 2018. Material & Methods: 60 patients with parasymphysis fracture after diagnosis established on clinical and radiological examination were equally divided into two groups, 30 patients in each. Group (A) were treated with two miniplates, while Group (B) one miniplate along with arch bar under general anesthesia with proper antibiotics coverage in the pre- and post-operative period. Results: The infection rate 4 (13.3%) patients in Group B while 0 in Group A. No Loosening /fracture of screw or plate occur in any subject in group A at any follow up visit, while it occ...

1Mtech Student, Dept. of ECE, Satya College of Engineering & Technology, MDU Rohtak, India 2,3 As... more 1Mtech Student, Dept. of ECE, Satya College of Engineering & Technology, MDU Rohtak, India 2,3 Assistant Professor, Dept. of ECE, Satya College of Engineering & Technology, MDU Rohtak, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract -This research paper represents basic study analysis of wireless optical communication systems which can be used for short distance application area like indoor, office, small factories etc. Wireless optical communication link used in this research work is IR LED based 12.5 GHz transmission system. Operating wavelength of IR LED considered is 760nm.. The performance of wireless optical communication is analyzed in this paper in terms of bit error rate and effects of data rate over bit error rate.

In this research paper basic concepts of 5G MIMO system is discussed in detail and BER performanc... more In this research paper basic concepts of 5G MIMO system is discussed in detail and BER performance of OFDM system for 5G MIMO system is simulated and results are shown on display. A novel technique CMA method to minimize PAPR reduction is proposed so that bit error rate performance can be improve significantly. Number of symbol considered 100, number of transmitter antenna is taken two and number of receiving antenna is taken three for analyzing BER performance and channel estimation using least square estimator.

Journal of emerging technologies and innovative research, 2019

As an indispensable means of data filtering, the recommender systems are attracted and created he... more As an indispensable means of data filtering, the recommender systems are attracted and created heaps of interest within the past 10 years. The previous recommendation techniques and approaches are wide analysed within the data retrieval analysis communities, machine learning techniques and data processing. Because of their nice industrial demand, the advice systems are with success puzzled out in industrial environments and in business areas, like recommendation of the merchandise at Amazon, recommendation of music at iTunes, recommendation of films at Netflix, and so on. During this paper, we tend to propose a trust-based grid factoring technique for recommendations. TrustSVD arranges distinctive data sources into the advice demonstrate memory actuality objective to decrease the info poorness and chilly begin problems and their dirtiness of proposition execution. In Proposal System used proposal in factor-to-factor proposal And User trust suggestion and an examination of social tru...

The rapid increase in global energy consumption and the impact of greenhouse gas emissions has ac... more The rapid increase in global energy consumption and the impact of greenhouse gas emissions has accelerated the transition towards greener energy sources. The need for distributed generation (DG) employing renewable energy sources such as wind, solar and fuel cells has gained significant momentum. Advanced power electronic systems, affordable high performance devices, and smart energy management principles are deemed to be an integral part of renewable, green and efficient energy systems. This paper briefly describes the attributes of DG. An overview of wind, fuel cell, solar based energy conversion systems has been presented. A qualitative description of the role of power electronics in wind, solar, and photovoltaic systems has been presented.

Infectious Agents and Cancer, 2020

Background Hepatitis C virus (HCV) represents a major risk factor for hepatocellular carcinoma (H... more Background Hepatitis C virus (HCV) represents a major risk factor for hepatocellular carcinoma (HCC) development and anti-HCV therapy is a significant measure to reduce the incidence of HCC, however development of HCC in HCV treated patients is an emerging clinical problem which needs to be investigated. In this study we aim to analyze association between anti-HCV therapy and tumor pattern of HCV related HCC patients. Methods Hepatocellular Carcinoma (HCC) patients with seropositivity for hepatitis C virus (HCV) antibodies, registered at three tertiary care hospitals of Rawalpindi and Islamabad, Pakistan during August 2017 to July 2018 were enrolled. Selected patients were then segregated in two groups on the basis of their HCV treatment history i.e., “TN” (HCV Treatment Naïve i.e. having no history/medical record for treatment prior to HCC diagnosis) and “TH” (Treated for HCV infection). Aggressiveness index (AgI) scoring system was applied to determine the tumor pattern. Univariat...

Wind Energy Systems, Dec 19, 2017

FIELD: energy.SUBSTANCE: invention relates to systems for converting wind energy into electric po... more FIELD: energy.SUBSTANCE: invention relates to systems for converting wind energy into electric power. System for converting wind energy into electrical energy contains a guide web, wind energy conversion modules, including wind energy receivers, made with the ability to move along the guide web due to wind power, and a device for controlling and coordinating the motion of the wind energy conversion modules, the guiding web is associated with a contact guide interacting with the wind energy conversion modules to generate an electric current when the energy conversion modules move. In this case, the device for controlling and coordinating the movement of the modules is configured to change the number of working modules by adding additional modules to the guide web or the withdrawal of modules from the guide web, depending on the wind conditions of the current time. Device for controlling and coordinating the movement of the modules is configured to continuously change the speed of each module, depending on the wind conditions of the current time, continuous change in the orientation of each receiver of wind energy relative to the wind, depending on the wind conditions of the current time and a continuous change in the aerodynamic profile and / or wing area of each module, depending on the wind conditions of the current time.EFFECT: invention is aimed at increasing the coefficient of wind energy use.20 cl, 6 dwg

International Journal for Research in Applied Science and Engineering Technology, 2018

Considering the increasing share of wind generation interfaced to grid it is necessary to study t... more Considering the increasing share of wind generation interfaced to grid it is necessary to study the power quality and reactive power issues considering voltage quality and stability issues. In case of Induction type wind energy converter reactive power management in cost effective way is essential. In many wind farm wind energy converter using Synchronous generator and Induction generator are used. Use of Synchronous generator leads to distortion of wave shape and are sensitive to grid disturbances. Considering the challenges to be faced related to interfacing of large wind farms using Induction and Synchronous generators, it is necessary to study the different wind generator systems and their comparisons. The wind energy conversion system is demanded to be more cost competitive, so that comparisons of different wind generator systems are necessary. An overview of different wind generator systems and their comparisons are presented. Also Critical Power Quality issues & Problems related with Grid connections are also discussed.

American Journal of Gastroenterology, 2016

malabsorption increases the risk for osteoporosis and fractures. Th is study examined the risk of... more malabsorption increases the risk for osteoporosis and fractures. Th is study examined the risk of fractures and osteoporosis in chronic pancreatitis patients with known exocrine insuffi ciency. Methods: Patients with chronic pancreatitis and exocrine insuffi ciency (previously diagnosed with endoscopic ultrasound and pancreatic function testing) underwent Dual-energy X-ray absorptiometry (DEXA) scans to evaluate for osteoporosis and had a FRAX® score calculated to assess their fracture risk. Nutritional status was also measured using the Malnutrition Universal Screening Tool (MUST). Results: 12.5% (2/16) of the patients from our chronic pancreatitis clinic were found to have osteoporosis and 68.8% (11/16) were found to have osteopenia based on DEXA scans. Based on the FRAX® score, the average 10-year major osteoporotic fracture risk was 5.5 ± 2.8% and the average 10-year hip fracture risk was 1.4 ± 2.1%. Th ere was no signifi cant correlation with level of malnutrition based on the MUST screen with T scores (r=0.11, p < 0.74) or FRAX® scores (r=0.49, p < 0.13 for major osteoporotic fracture risk and r=0.29, p < 0.38 for hip fracture risk). See Figure 1. Conclusion: Th ere was no signifi cant correlation with nutritional status and osteoporosis or fracture risk. Th is likely refl ects the multi-faceted nature of osteoporosis and emphasizes that malabsorption remains a theoretical risk factor for decreased bone mineral density. A recent case-matched study demonstrated an association between abnormal bone turnover and decreased bone mineral density in chronic pancreatitis patients, but what remains unclear is if this process is secondary to malabsorption or infl ammation. While larger studies will need to be conducted to establish the link between malabsorption and decreased bone mineral density, this study highlights the importance in screening for osteopenia and osteoporosis in this population.

The American Journal of Gastroenterology, 2001

Renewable Energy and Power Quality Journal, 2006

The FACTS devices control the interrelated parameters that rule the operation of the transmission... more The FACTS devices control the interrelated parameters that rule the operation of the transmission systems, including the serial impedance, the derivation impedance, the current, the tension, the phase angle and the muffling of oscillations to different frequencies under the nominal frequency. The FACTS technology has a collection of controllers, that can be used individually or coordinated with other controls installed in the network, thus permitting to profit better of the network's characteristics of control. The configurations of compensators based on switched inverters, called static compensators of reactive power, are today the most used in the electric current transmission systems. The apparition of high-powered electronic converters, makes possible the generation or absorption of reactive power without using banks of condensers or inductors. The STATCOM is a device connected in derivation that can operate in networks of transport as well as of distribution. The functions will depend on the type of network in which it will be installed, it could fulfill functions of reactive power control and tension regulation, or other functions as power factor regulator, shock absorber of system oscillations or filtering of harmonics, depending on the systems applications and the tension level we wish to install.

JPMA. The Journal of the Pakistan Medical Association, 2016

To note ultrasonographic findings used for diagnosing plasma leakage in dengue haemorrhagic fever... more To note ultrasonographic findings used for diagnosing plasma leakage in dengue haemorrhagic fever patients. The observational retrospective study was conducted at the Holy Family Hospital, Rawalpindi and comprised records of patients with confirmed dengue infection who were screened for dengue haemorrhagic fever according to Dengue Expert Advisory Group criteria from July 1 to December 31, 2013. Each patient underwent ultrasonography for the detection of ascites, gall bladder wall thickness, pleural and/or pericardial effusion along with their quantification and localisation. Of the 240 patients, 166(69.2%) were men. The overall mean age was 28.9±12.4 years. Of the total, 215(89.5%) had ultrasonographic abnormalities, suggestive of plasma leakage. Quantification and localisation wise, mild abdominal ascites 68(47.2%), right pleural effusion 82(74.5%) and mild pleural effusion 98(89%) were commonly noted. None had pericardial effusion. Mild ascites and mild right pleural effusion wer...

Necessity validates impunity. Or at least this has been the argument from AFSPA advocates. Howeve... more Necessity validates impunity. Or at least this has been the argument from AFSPA advocates. However, the human cost of such unbridled delegation of powers born by the humanity itself and left unattended by state, is alarming. It needs an urgent treatment. Its constitutionality has been upheld by the court; however, its desirability is still contested. A general dissent was voiced out of the regular bench through Jeevan Reddy Review Committee which labeled the law as a ‘symbol of oppression’ and ‘an object of hate’. AFSPA Amendment Bill, 2011 sought to amend few provisions but till now it has not taken any effect. The issue is not of legality or constitutionality, but of more lofty notions like morality and human rights. Fundamental right to life is the direct victim of such military impunity thereby brings AFSPA in direct contradiction with underlying philosophy of our constitution. Not only this, procedural equality is also bypassed to the extent of acute harassment and terror of ge...

Bangladesh Journal of Pharmacology, 2015

The work was aimed to synthesize 4-Aminoantipyrine derived Schiff bases in economical way and to ... more The work was aimed to synthesize 4-Aminoantipyrine derived Schiff bases in economical way and to screen it for study the effect of nitro group on its antibacterial potential, conduct antitumor preliminary study, the effects of group presence in benzylidene phenyl ring on the cytotoxic potentials and study the effects of electron withdrawing and donating group on antioxidant potential. We used green method with 75% reduction in general synthesis time of Schiff bases. Synthesized compound possess antibacterial potentials and nitro group presence enhances this potential. G2, G3, G4, G5, G6, G7 and G8 have significant cytotoxic and no significant antioxidant activity.

Speech is used to convey emotions, feelings and information. It has began from day one when human... more Speech is used to convey emotions, feelings and information. It has began from day one when human beings start to communicate. Speech synthesis, also called text-to-speech, is the generation of synthetic speech. An application or other process sends text to a speech synthesizer, which creates a spoken version that can be output through the audio hardware or saved to a file. This paper deals with some methods of speech synthesis. Speech synthesis has very wide range of applications, which are reviewed in later part of the paper.

JPMA. The Journal of the Pakistan Medical Association, 2006

To evaluate the efficacy and safety of the low molecular weight heparin as prophylaxis against th... more To evaluate the efficacy and safety of the low molecular weight heparin as prophylaxis against thromboembolism following total knee replacement surgery. Post-operative bilateral lower extremity colour duplex scan was performed on 55 patients subjected to total knew arthroplasty. The scan was performed 7 days after surgery for detection of DVT. All patients were given Enoxaparin 40mg subcutaneous daily for 2 weeks as prophylaxis against DVT. Two patients were diagnosed as DVT by color duplex scanning and both were distal but only one was asymptomatic. Another patient developed pulmonary embolism and died subsequently. The major and minor wound problems were seen in two and six patients respectively; nearly all complications were seen in obese patients. DVT is not a nonexistent entity in our population. Low molecular weight heparins are safe drugs but apparently the bleeding complications are more as compared to Western literature. Larger case control studies are required to determine...

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The Professional Medical Journal, 2020

Journal of emerging technologies and innovative research, 2019

Infectious Agents and Cancer, 2020

Wind Energy Systems, Dec 19, 2017

International Journal for Research in Applied Science and Engineering Technology, 2018

American Journal of Gastroenterology, 2016

The American Journal of Gastroenterology, 2001

Renewable Energy and Power Quality Journal, 2006

JPMA. The Journal of the Pakistan Medical Association, 2016

Bangladesh Journal of Pharmacology, 2015

JPMA. The Journal of the Pakistan Medical Association, 2006

Journal of Ayub Medical College, Abbottabad : JAMC

This study was conducted to assess the early predictability of virological response in chronic he... more This study was conducted to assess the early predictability of virological response in chronic hepatitis-C patients (Genotype-3), treated with pegylated interferon alpha-2a and ribavirin with an objective of determining predictive values of Rapid Virological Response (RVR) and Early Virological Response (ETR) on Sustained Virological Response (SVR). This cross sectional study was conducted in January 2014, at Holy Family Hospital, Rawalpindi by inclusion of 582 patients of chronic hepatitis being treated with Pegylated Interferon a 2b and ribavirin. Based on Polymerase Chain Reaction (PCR) for HCV RNA Qualitative on 4th, 12h and 24th week of treatment regimen, RVR, EVR and End treatment Response (ETR) was assessed respectively whereas 24th week post treatment PCR concluded as SVR. Effect of treatment was determined as proportions for responses in total and then compared for treatment naive, responders and relapsers to previous conventional therapy using Chi square test. Positive and...

H&H Report of Kabul-Logar Road, 2019

Hydrology analysis & Hydraulics design report of Kabul-Logar Road

Highway bridge Scour computation & protection work design., 2021

Highway bridge Scour computation & protection work design.