6 research outputs found
Performance of blended cement concrete exposed to marine environment
No full textReinforced concrete exposed to the marine environment deteriorates more rapidly. Structures constructed at or near the sea shore have to be repaired more often than comparable structures located elsewhere. This study was carried out to develop an understanding of the performance of concrete made up of cements blended by pozzolanic materials. Several mix designs were formulated, incorporating the pozzolans like slag, fly ash and silica fume and calcium nitrate as the corrosion inhibitor. Mix designs were in accordance with ACI 211-1 and pozzolanic materials were added in accordance with ACI 233 and ACI 234. A number of tests were carried out during the study to compare the performance of samples cast from concrete of different mix designs. Tests conducted during the study were Rapid Migration Test (NT Build 492), Half Cell Potential (ASTM C 876), Absorptivity of the oven-dried samples (ASTM C 642), Compressive Strength Test (ASTM C 39) and Flexural Strength Test (ASTM C 293). Results showed that in almost all cases, use of cements blended with pozzolanic materials resulted in an enhanced performance of the concrete. Use of supplementary cementitious materials (SCM) in concrete provides a sustainable and feasible solution to the durability problems in coastal areas. Replacements of OPC by the pozzolan will not only help in conservation of natural resources, but it will also contribute towards reducing pollution and energy
Demonstration of energy detector performance and spectrum sensing in Cognitive Radio using AWGN, Rayleigh and Nakagami channels
No full textProceedings of ASEAN - Pakistan Conference on Materials Science
No full textDr. Arnir Hussain
Important Factors for high Performance of Composites
Dr Bilal Khan, Dr. Zaffar Khan
Polymer Nanocomposites: Prospects, Potentials and Applications in Aerospace Structures
M Arshad Bashir, Noaman-ul-Haq, Shamshad Ahmed, M Bilal Khan
Synthesis and Mechanical Properties Evaluations of Ablative Materials
Priyo Sardjono, Bambang Prihandoko
Ceramic Graphite Composite as Anode of Lithium Battery
M. Anis-ur-Rehman, S. Nasir, A. Maqsood
Structural, Electrical and Magnetic Studies of Co-precipitated Ni-Co Nano-Ferrites
M Babar Saeed, M Fahim Hashmi
Control Of Thermoplastic Polyimide Properties Through Molecular Architecture
A. Haider, M Shoaib, M Asim, M Farooque
Comparative Investigation of Barium Titanate Ceramics Synthesized by Conventional
Powder and Sol-gel Techniques
Dr. Zaffar. M Khan
The On-Line Condition Monitoring System of Composite Structures Using Fiber Optic Sensors
Muhammad Faisal, Muhammad Shahid
Corrosion behavior of "ASTM A-106 Grade-A carbon steel in amine solutions
under sour conditions.
Mohammad Fuzail, Sabir Ghafoor Alvi, Shamshad Ahmed, Jamil Anwar
Study of the influence of DOP Mobilizer on the Mechanical and Thermal Properties
of the Irradiated Semi-Crystalline Ethylene-Propylene Copolymer
Syed Jawid Askari, Abid Hameed, Usama Umer, Ah Imran Merchant, Noman Danish
The Role of Nucleation Density and Methane Fraction in the Growth of Diamonds
Coatings and Titanium: A Review
Muhammad Mazhar Iqbal, Sajid Raza Ch
Design Optimization and Material Selection for Liquid Propellant Tanks
K Maaz, A. Mashiatullah, R M Qureshi, S. Karim, G. Ali, T. Javed
Morphological studies of NixCol-xFe2O4 ( 1) Magnetic Nanoparticles
M H. Saleh, E.A. Othman, F. Ismail, M Mohammad
Characterization of Nanocrystalline Neodymium Iron Boron (NdFeB) Magnetic Materials.
Nguyen Nang Dinft, Le Ha Chi, Tran Thi Chung Thuy, Hyung-Kook Kim
Characterization of multilayer organic light diodes using nanostructured composite thin films
Amir Habib, Nils stelzer, Roland haubner
Solvothermal synthesis of tetragonal BaTiO3
R.J. Talib, A.H Hashim, M A. Hamid, M R.M Toff , J. J. Mohamed
Mechanical and tribological properties of plasma carbonitrided stainless steel aisi 316
M. Bilal Khan, Saleem Hussain
Enhancement of Mechanical Properties of Kevlar-Epoxy Composite by Improving
the Interface Coupling
Sultan Mahmood, M Bilal Khan, Toqeer Kausar, Faiz -ur- Rehman
Hot Drawing & Characterization of Ultra High Molecular Weight Polyethylene
(UHMWPE) Fibers to Produce High Impact Resistant & Light Weight Armor Composites
Zainul Huda
Recent Developments In Thermal Barrier Coatings (Tbc) On Turbine Blades
And Their Inspection Techniques
Syed J. Ali, Chaudhary J. Omer, Nasir M Ahmad, Christopher J. Barrett, Muhammad I. Sarwar
Novel Functionalized Polymers Containing Photoresponsive Azobenzene
Chromophore: Synthesis and Characterization
A.Quddos, S.M.Hussain, A.Wadood, A.Hayat
Syntheses, Charcterization And Incorporation Of Nanoparticles Into The Polymer Matrix
A.S. Khan, F.S.L.Wong, LU.Rehrnan
Synthesis and in-vitro analysis of a novel bioactive nano-composite
Noaman Ul-Haq, Joong Kon Park, M Bilal Khan, Khairuddin Sanaullah
Chiral Resolution of Phenylalanine using Ultrafiltration Technique by Molecularly
Imprinted Membrane
M. Bilal Khan
Intelligent Viscoelastic Polyurethane Intrinsic Nano Composites
Shamshad Ahmed, M Junaid Afzal, Mazhar Mehmood
Role of Compatibilizers in Improvement of Mechanical and Thermal Properties of EPDM and Polypropylene Blends
Christian Lammel
Induction aided manufacturing of nano-filled polymers and CRF
A rare case report of recurrent primary intra-abdominal synovial sarcoma: An unusual manifestation
No full textSynovial sarcomas are a rare and aggressive subtype of soft tissue sarcomas that typically affects young adults and involves the extremities. Synovial sarcoma of the kidney is a rare and aggressive tumor with a poor prognosis, accounting for only 1% of all renal tumors. The imaging features of this tumor often overlap with those of other renal tumors, and a definitive diagnosis can only be made through immunohistochemical analysis. In this case report, we present the case of a 55-year-old female with left flank pain, who was diagnosed with primary renal synovial sarcoma following a left-sided radical nephrectomy. Despite initial successful surgical intervention, restaging scans showed local recurrence and metastatic disease, which was subsequently managed with 6 cycles of chemotherapy followed by radiation therapy with palliative intent. This case underscores the importance of early detection and aggressive management of rare renal tumors to improve patient outcomes
Global, Regional, and National Burden of Cardiovascular Diseases and Risk Factors in 204 Countries and Territories, 1990-2023
No full textBackground: Cardiovascular diseases (CVDs) are the leading cause of mortality and are among the foremost causes of disability globally. CVD burden has continued to increase in most countries since 1990, with trends driven by changing exposures to harmful risk factors, population growth, and population aging. Objectives: We report estimates of global, national, and subnational CVD burden, including 18 subdiseases and 12 associated modifiable risk factors. We analyzed change in CVD burden from 1990 to 2023 and identified drivers of change including population growth, population aging, and risk factor exposure. Methods: The Global Burden of Disease (GBD) 2023 study, a multinational collaborative research study, quantified burden due to 375 diseases including CVD burden and identified drivers of change from 1990 to 2023 using all available data and statistical models. GBD 2023 estimated the population-level burden of diseases in 204 countries and territories from 1990 to 2023. Results: CVDs were the leading cause of disability-adjusted life years (DALYs) and deaths estimated in the GBD. As of 2023, there were 437 million (95% UI: 401 to 465 million) CVD DALYs globally, a 1.4-fold increase from the number in 1990 of 320 million (292 to 344 million). Ischemic heart disease, intracerebral hemorrhage, ischemic stroke, and hypertensive heart disease were the leading cardiovascular causes of DALYs in 2023 globally. As of 2023, age-standardized CVD DALY rates were highest in low and low-middle Socio-demographic Index (SDI) settings and lowest in high SDI settings. The number of CVD deaths increased globally from 13.1 million (95% UI: 12.2 to 14.0 million) in 1990 to 19.2 million (95% UI: 17.4 to 20.4 million) in 2023. The number of prevalent cases of CVD more than doubled since 1990, with 311 million (95% UI: 294 to 333 million) prevalent cases of CVD in 1990 and 626 million (95% UI: 591 to 672 million) prevalent cases in 2023 globally. A total of 79.6% (95% UI: 75.7% to 82.5%) of CVD burden is attributable to modifiable risk factors 347 million [95% UI: 318 to 373 million] DALYs in 2023). Globally, high systolic blood pressure, dietary risks, high low-density lipoprotein cholesterol, and air pollution were the modifiable risks responsible for most attributable CVD burden in 2023. Since 1990, changes in exposure to modifiable risk factors have had mixed effects on CVD burden, with increases in high body mass index, high fasting plasma glucose, and low physical activity leading to higher burden, while reductions in tobacco usage have mitigated some of these increases. Population growth and population aging were the main drivers of the increasing burden since 1990, adding 128 million (95% UI: 115 to 139 million) and 139 million (95% UI: 126 to 151 million) CVD DALYs to the increase in CVD burden since 1990. Conclusions: CVD remains the leading cause of disease burden and death worldwide with the greatest burden in low, low-middle, and middle SDI regions. Large variation exists in CVD burden even for countries at similar levels of development, a gap explained substantially by known, modifiable risk factors that are inadequately controlled. The decades-long increase in CVD burden was the result of population growth, population aging, and increased exposure to a subset of risk factors led by metabolic risks. Countries will need to adopt effective health system and public health strategies if they are to progress in achieving global goals to reduce the burden of CVD
