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CHFS: Complex hesitant fuzzy sets‐their applications to decision making with different and innovative distance measures

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CAAI Transactions on Intelligence Technology 2021年第1期6卷 93-122页

作者： Harish Garg Tahir Mahmood ubaid ur Rehman Zeeshan Ali School of Mathematics Thapar Institute of Engineering and TechnologyDeemed UniversityPatialaPunjabIndia Department of Mathematics and Statistics International Islamic UniversityIslamabadPakistan

The objective of the authors is to establish an innovative concept of the complex hesitant fuzzy set(CHFS),which is the combination of the hesitant fuzzy set and the complex fuzzy set to manage complex and awkward information in the real‐decision *** structure and the basic properties of the proposed set are studied in *** on the internal structure of the set and to find the degree of the discrimination between the pairs of the CHFSs,the generalized distance measures and modified generalized distance measures are *** properties and their relationship between them are derived in ***,several cases of the proposed measures are exposed which reduce them to the existing ***,based on these proposed measures,a decision‐making approach is established under the uncertain environment and several numerical examples are given to examine the feasibility and validity of the explored ***,the credibility of the modified and parameterized distance measures based on CHFSs is verified by comparing them with some existing measures.

关键词： theory. verified validity

Control of Linear Servo Carts with Integral-Based Disturbance Rejection

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Computers, Materials & Continua 2022年第10期73卷 453-463页

作者： Ibrahim M.Mehedi Abdulah Jeza Aljohani ubaid M.Al-Saggaf Ahmed I.Iskanderani Thangam Palaniswamy Mohamed Mahmoud Mohammed J.Abdulaal Muhammad Bilal Waleed Alasmary Department of Electrical and Computer Engineering(ECE) King Abdulaziz University5521589Saudi Arabia Center of Excellence in Intelligent Engineering Systems(CEIES) King Abdulaziz University6521589Saudi Arabia Electrical and Computer Engineering TN38505United States Computer and Information Systems Umm Al-Qura UniversityMakkahSaudi Arabia

This paper describes a system designed for linear servo cart systems that employs an integral-based Linear Active Disturbance Rejection Control(ILADRC)scheme to detect and respond to *** upgrade in this control technique provides extensive immunity to uncertainties,attenuation,internal disturbances,and external sources of *** fundamental technology base of LADRC is Extended State Observer(ESO).LADRC,when combined with Integral action,becomes a hybrid control technique,namely *** tracking is based on Bode’s Ideal Transfer Function(BITF)in this proposed ILADRC *** proves to be a very robust and appropriate pole placement *** proposed LSC system has experimented with the hybrid ILADRC technique plotted the *** the results,it is evident that the proposed ILADRC scheme enhances the robustness of the LSC system with remarkable disturbance ***,the results of a linear quadratic regulator(LQR)and ILADRC schemes are comparatively *** analysis deduced the improved performance of ILADRC over the LQR control scheme.

关键词： Pole placement ADRC Active disturbance rejection robust control linear servo cart system

Techno-economic assessment of energy generation through municipal solid waste:a case study for small/medium size districts in Pakistan

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Waste Disposal and Sustainable Energy 2020年第4期2卷 337-350页

作者： ubaid Ur Rehman Zia Tanzeel ur Rashid Muzaffar Ali Waqas Nazir Awan Sustainable Development Policy Institute IslamabadPakistan Mechanical Engineering Department University of Engineering and TechnologyTaxilaPakistan

There is an increase in annual waste generation due to urbanization,industrialization,and population *** waste management crisis in developing countries and its complexity from region to region has inspired extensive research work in this *** management not only results in environmental hazards,but it also causes significant socio-economic *** to the absence of comprehensive studies on waste to energy(WTE)assessment,this study assesses and reports the merits of alternative technologies for converting WTE in small and medium-size *** analysis for waste collection data in this study uses a pilot study approach to provide useful insights and waste classification.A cantonment district of Pakistan(Wah Cantt)has been used as a case study for performing a technological and economic assessment of energy generation through the use of thermal and biological treatment processes.A mathematical modeling approach has been adopted for generating an economic value of each technology through which this waste can be ***,the levelized cost of energy(LCOE)based assessment has been performed to provide a methodological framework for selecting the most feasible WTE technology in a small or medium-size *** on the model results,anaerobic digestion appears to be the most sustainable technology due to the organic nature of waste in Wah Cantt,land legislation,and availability of area to install a waste *** all the waste collected,the district can generate approximately 14.4 MW of energy through thermal treatment,19,110 m^(3) of daily biogas through anaerobic digestion,and 5 million tons of fertilizer through ***,if a proper supply chain is established for converting a portion of Pakistan’s annual waste generation,a significant amount of waste energy potential can be restored.

关键词： Municipal solid waste Waste to energy Levelized cost of energy Technological assessment Economic assessment

Enhanced performance of nano-sized SiC reinforced Al metal matrix nanocomposites synthesized through microwave sintering and hot extrusion techniques

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Progress in Natural Science:Materials International 2017年第5期27卷 606-614页

作者： M.Penchal Reddy R.A.Shakoor Gururaj Parande Vyasaraj Manakari F.ubaid A.M.A.Mohamed Manoj Gupta Center for Advanced Materials Qatar University Department of Mechanical Engineering National University of Singapore Department of Metallurgical and Materials Engineering Suez University

In the present study, nano-sized SiC(0, 0.3, 0.5, 1.0 and 1.5 vol%) reinforced aluminum(Al) metal matrix composites were fabricated by microwave sintering and hot extrusion techniques. The structural(XRD, SEM),mechanical(nanoindentation, compression, tensile) and thermal properties(co-efficient of thermal expansionCTE) of the developed Al-SiC nanocomposites were studied. The SEM/EDS mapping images show a homogeneous distribution of SiC nanoparticles into the Al matrix. A significant increase in the strength(compressive and tensile) of the Al-SiC nanocomposites with the addition of SiC content is observed. However,it is noticed that the ductility of Al-SiC nanocomposites decreases with increasing volume fraction of SiC. The thermal analysis indicates that CTE of Al-SiC nanocomposites decreases with the progressive addition of hard SiC nanoparticles. Overall, hot extruded Al 1.5 vol% SiC nanocomposites exhibited the best mechanical and thermal performance as compared to the other developed Al-SiC nanocomposites.

关键词： Al-SiC nanocomposites Microwave sintering Hot extrusion Mechanical properties Thermal expansion

Direct single-mode lasing in polymer microbottle resonators through surface destruction

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Chinese Optics Letters 2019年第12期17卷 44-48页

作者： Saima ubaid Feng Liao Tao Guo Zhaoqi Gu Shuangyi Linghu Yanna Ma Jiaxin Yu Fuxing Gu Laboratory of Integrated Opto-Mechanics and Electronics Shanghai Key Laboratory of Modern Optical SystemEngineering Research Center of Optical Instrument and System(Ministry of Education)University of Shanghai for Science and TechnologyShanghai 200093China

We demonstrate an effective approach of mode suppression by simply using a tungsten probe to destroy the external neck surface of polymer microbottle *** higher-order bottle modes with large axial orders,spatially located around the neck surface of the microresonator,will suffer large optical ***,excitation just with an ordinary free-space light beam will ensure direct generation of single fundamental bottle mode *** method is with very low cost and convenient and can obtain high side-mode suppression *** work demonstrated here may have promising applications such as in lasing and sensing devices.

关键词： resonator mode lasing

Infections in Cirrhotics: Types, Microbiological Spectrum and Risk Factors—5-Year Cohort Study

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Open Journal of Gastroenterology 2014年第3期4卷 105-117页

作者： Iftikhar Haider Naqvi Khalid Mahmood Abu Talib Mohammad ubaid Aamer Mahmood Agha Khan University Karachi Pakistan Department of Medicine Civil Hospital Karachi Dow University of Health Sciences Karachi Pakistan

Cirrhosis is an immunocompromised state that leads to various infections, with an estimated 30% mortality. Pakistan already has a high morbidity and mortality related to complications of cirrhosis. Where the data on infection among cirrhotics is scanty, this study aimed to determine the frequency, microbiological spectrum and various risk factors of infections in cirrhosis of liver. This is a prospective cohort study conducted at a tertiary care hospital. The microbiological spectrum and frequency of infections was determined in cirrhotics. Various risk factors for infection among cirrhotics were evaluated like upper gastrointestinal bleed, use of proton pump inhibitors, malnutrition and severity of cirrhosis. Out of eleven hundred and forty-one patients with cirrhosis of liver, four hundred and ninety (42.94%) patients had infections. All kinds of infections like peritoneal, respiratory, urinary tract and skin were present in cirrhosis of liver where ascitic fluid infections (AFI) were the commonest i.e. 44.89%. The risk factors for bacterial infections among patients with cirrhosis of liver were upper gastrointestinal bleeding (odd ratio = 4.57, p = 0.0001), use of proton pump inhibitors (odd ratio = 2.57, p = 0.0001), degree of malnutrition (odd ratio = 10.34, p = 0.0001) and severity of cirrhosis (odd ratio = 12.99, p = 0.000). All types of infections occurred with varying frequency in cirrhosis of liver. Upper gastrointestinal bleeding, severity of cirrhosis, use of high dose proton pump inhibitors and severe malnutrition are important risk factors for infections among cirrhotics.

关键词： Liver Cirrhosis Proton Pump Inhibitors Ascites Bacterial Infections

Influence of Atmospheric Non-thermal Plasma on Some Hematological Characteristics of Iraqi Patients

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Journal of Physical Science and Application 2016年第1期6卷 82-87页

作者： Thamer Hameid Mohammed ubaid Hussein Abdul Rahman M. G. A1-Fahdawi Department of Physics College of Science Baghdad University Baghdad Iraq Department of physiology and medieal physics College of Medicine Anbar University Anbar Iraq Department of Anatomy and Histology College of Medicine Anbar University Anbar Iraq

Non-thermal atmospheric pressure plasma has emerged as a new promising tool in medicine. The effectiveness of an Atmospheric Non Thermal Plasma for clinical and biological applications is studied. This research effort includes a desioning of plasma generating system and examine it on some medical and biological parameters. No patient had previous operative or chemotherapeutic treatment, so the patients with hematological disorders （hemophilia） and those with open heart surgery that receiving warfarin and other antithrombotic agents were excluded from the study. A total of eighty 80 Iraqi patients seeking for a medical consultation in A1-Ramadi Teaching Hospital were included in this study. The plasma treatment is applied both in vitro and in vivo experiments on those patients. In the in vivo experiments, the bleeding time tests were carried out on these patients; the results showed the bleeding time of the patients was reduced as compared with control. In vitro experiments regarding clotting time and prothrombine time PT, the results have demonstrated that this plasma device clots blood rapidly via a control. The dependencies of the degree of clotting on the exposure time, distance have been recorded. A series of experiments reveal that this effectiveness is due to the ability of direct discharge to bring charges to blood samples due to generation of so many mediators like reactive nitrogen species and free radicals.

关键词： Atmospheric non-thermal plasma bleeding time clotting time prothermbine time.

Peripheral Neuropathy and Vasculopathy;Frequency and Associated Risk Factors in Newly Diagnosed Treatment Naive Type 2 Diabetes

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Open Journal of Endocrine and Metabolic Diseases 2018年第5期8卷 125-136页

作者： Iftikhar Haider Naqvi Abu Talib Syed Tahseen Akhter Syeda Rida Abdi Saiyeda Nayema Zehra Rizvi Muhammad ubaid Department of Medicine Dow University of Health Sciences Karachi Sindh Pakistan Florence Medical Centre Karachi Pakistan Civil Hospital Karachi Karachi Pakistan

Background: The prevalence of diabetes in Pakistan is 11.45%. The reported prevalence of diabetic foot ulceration in Pakistan is between 4% and 10%, with the amputation rate of 8% - 21%. Peripheral neuropathy and vasculopathy are main underlying cause of diabetic foot ulcers. Methodology: It was a cross-sectional non-interventional cohort study where all newly diagnosed treatment naïve type 2 diabetic patients were enrolled. Peripheral neuropathy and vasculopathy were detected by Michigan neuropathy screening instrument (MNSI) and ankle brachial index (ABI) respectively. Risk factors for peripheral neuropathy and vasculopathy were determined by univariate and multivariate logistic regression analysis. Statistical significance was considered with P value of Result: Fifty seven patients (37.7%) had early neuropathy with MNSI score of 3.3 ± 0.4. Thirty seven patients (20.6%) had vasculopathy with ABI score of 0.76 ± 0.11. Age (Odd ratio 1.07 (1.02 - 1.11), p 0.003), duration of symptoms (Odd ratio 1.11 95% CI: 1.05 - 1.17, p ≤ 0.001), high HbA1C % (Odd ratio 1.94 95% CI: 1.54 - 2.45, P ≤ 0.001), albumin creatinine ratio (Odd ratio 1.01, 95% CI: 1.00 - 1.01, P ≤ 0.001 ) and cholesterol level (Odd ratio 1.01 95% CI: 1.01 - 1.02, p = 0.001) were found as risk factors for early neuropathy and vasculopathy. Conclusion: Peripheral neuropathy and vasculopathy are frequently reported complications among newly diagnosed treatment naïve patients of type 2 DM. Age, duration of symptoms prior to diagnosis, metabolic parameters like raised HbA1C, hyperlipidemia and spot random albumin creatinine ratio are found to be risk factors for both peripheral neuropathy and vasculopathy.

关键词： Peripheral Neuropathy Peripheral Vasculopathy Type 2 Diabetes Mellitus

Analytical case study of basal metabolic rate of mildly symptomatic COVID-19 patients with reference to mizaj

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History & Philosophy of Medicine 2021年第2期3卷 19-23页

作者： Iqra Hashmi Yusuf Jamal ubaid Amir Aysha Raza Ayurvedic and Unani Tibbia College and Hospital Karol BaghNew Delh-110005iIndia.

Mizaj is derived from the Arabic word which means intermixing with each *** to Ibn Nafees mizaj is an inter mixture of different *** word mizaj is described as temperament which springs from the Latin word tempero,which suggests *** the Unani system of medicine mizaj is the most important and difficult concept as it describes the whole body and it should be in equilibrium and if there is any change in mizaj than the equilibrium gets disturbed and life is *** study is conducted to relate the relationship between mizaj and COVID-19 patients basal metabolic rate.A cross sectional descriptive study to assess the mizaj in 78 mildly symptomatic COVID-19 patients of different age groups and gender was carried out in COVID-19 ward,Ayurvedic and Unani Tibbia College and Hospital,Karol Bagh,New Delhi,India during period of 2020–*** on the various observations it is found that COVID-19 patients,mean basal metabolic rate is highest in people having balghami mizaj and lowest in people having safravi mizaj group.

关键词： Mizaj,Saudavi Damvi Balghami Safravi Tempero Temperament COVID-19