Search results for: Ihsan Ali

Items from 1 to 20 out of 50 results

article

The potential toxicity of chemically fabricated silver nanomaterials based on accumulation and histological changes in fish (Cyprinus carpio)

Ihsan Ali, Kalim Ullah, Nadia Bibi, Bushra Ahmad, more

Microscopy Research and Technique > 87 > 10 > 2292 - 2300

The bio‐reductive fabrication of nanomaterials is a developing arena of study that seeks to fabricate nanoparticles (NPs) using microorganisms, plants, and animal blood. However, the chemical approach of AgNPs fulfills the need of abundant need of NPs. In contrast, chemically fabricated AgNPs are more toxic than biological AgNPs. Therefore, the current study aimed to assess and evaluate the chemically...

article

Microscopic analysis of plant‐mediated silver nanoparticle toxicity in rainbow trout fish (Oncorhynchus mykiss)

Ihsan Ali, Shuaib Khan, Khadim Shah, Haroon, more

Microscopy Research and Technique > 84 > 10 > 2302 - 2310

Over the years, nanoscience and the application of nanomaterials have gained the attention of researchers due to their enormous application history. Especially, the application of AgNPs providing innovative solutions to a wide range of environmental issues, for instance, wastewater treatment, bioremediations, and environmental sensing. Besides all these, the environmental application of silver nanomaterials...

article

Biological synthesis of silver nanoparticles using animal blood, their preventive efficiency of bacterial species, and ecotoxicity in common carp fish

Mian Adnan Kakakhel, Fasi Wu, Huyuan Feng, Zubair Hassan, more

Microscopy Research and Technique > 84 > 8 > 1765 - 1774

Possible high biodeterioration of the microorganisms due to their metabolic pathway and activities on stone materials causes solemn problems in cultural heritage. Different kinds of laboratory‐scale methods have been used for the reduction of microbial growth, that is, chemical, mechanical, and physical, which are cost‐effective and not ecofriendly. In the current study, an ecofriendly approach utilizing...

article

Maximization of heat transfer density from a vertical array of flat tubes in cross flow under fixed pressure drop using constructal design

Ahmed Waheed Mustafa, Ihsan Ali Ghani

Heat Transfer—Asian Research > 48 > 8 > 3489 - 3507

The density of heat transfer rate from a vertical array of flat tubes in cross flow is maximized under fixed pressure drop using constructal design. With the constructal design, the tube arrangement is found such that the heat currents from the tubes to the coolant flow easily. The constraint in the present constructal design is the volume where the tubes are arranged inside it. The two degrees of...

article

Phylogeny, sequence-typing and virulence profile of uropathogenic Escherichia coli (UPEC) strains from Pakistan

Ihsan Ali, Zara Rafaque, Ibrar Ahmed, Faiza Tariq, more

BMC Infectious Diseases > 2019 > 19 > 1 > 1-9

Background Escherichia coli lineage ST131 predominates across various spectra of extra-intestinal infections, including urinary tract infection (UTI). The distinctive resistance profile, diverse armamentarium of virulence factors and rapid global dissemination of ST131 E. coli makes it an intriguing pathogen. However, not much is known about the prevalence and genetic attributes of ST131 lineage in...

article

Enhanced mechanical properties of fiber reinforced concrete using closed steel fibers

Shahid Iqbal, Ihsan Ali, Shah Room, Shaukat Ali Khan, more

Materials and Structures > 2019 > 52 > 3 > 1-10

Concrete is weak in tension and fibers are added to it to make it ductile. One of the commonly used methods, for this purpose, is the addition of steel fibers of different geometries. However, failure of fiber reinforced concrete is initiated by pulling out of fibers, failing to utilize their full capacity. In this study, closed steel fibers (CSF) are proposed for addition into concrete. The objective...

article

Pterostilbene exerts a protective effect via regulating tunicamycin-induced endoplasmic reticulum stress in mouse preimplantation embryos

Obaid Ullah, Zhongshu Li, Ihsan Ali, Lijie Xu, more

In Vitro Cellular & Developmental Biology - Animal > 2019 > 55 > 2 > 82-93

Pterostilbene (PTS) mainly enriched in small fruits such as berries and grapes exerts an antioxidant effect. However, the protective effects of PTS against endoplasmic reticulum stress (ERS) have not yet been elucidated in mouse preimplantation embryo. ERS plays an important role in regulating the pathological and physiological processes, including embryonic development. We explored the protective...

article

Heat transfer enhancement in microchannel heat sink using hybrid technique of ribs and secondary channels

Ihsan Ali Ghani, Nor Azwadi Che Sidik, Rizal Mamat, G. Najafi, more

International Journal of Heat and Mass Transfer > 2017 > 114 > C > 640-655

The flow and heat transfer characteristics of microchannel heat sink with secondary oblique channels in alternating direction and rectangular ribs (MC-SOCRR) are studied numerically for Reynolds number (Re) ranging from 100 to 500. The effects of secondary channels and ribs on the Nusselt number and friction factor are investigated. A comparative analysis has been conducted to the performance of the...

article

Reducing Power Consumption in Wireless Body Area Networks: A Novel Data Segregation and Classification Technique

Akande Sheriff Abiodun, Mohammad Hossein Anisi, Ihsan Ali, Adnan Akhunzada, more

IEEE Consumer Electronics Magazine > 2017 > 6 > 4 > 38 - 47

Chronic health issues such as hypertension, diabetes, high blood pressure, heart attack, and asthma are widespread in our society. Health-care wireless body area networks (WBANs) have been widely deployed by medical professionals to manage the health information of a patient remotely, and various data-management approaches have been used to handle the continuous transmission of WBAN data. The data...

article

A Review on energy management schemes in energy harvesting wireless sensor networks

Aliyu Aliyu Babayo, Mohammad Hossein Anisi, Ihsan Ali

Renewable and Sustainable Energy Reviews > 2017 > 76 > C > 1176-1184

Wireless Sensor Networks (WSNs) are becoming more and more integrated into industrial and domestic systems such as transport, home automation, etc. However, due to their own characteristics, there are several issues which affect their performance. Some of the issues are briefly presented, but the emphasis is on energy constraint. Energy harvesting as one of the sources of energy in WSNs is found to...

article

The effect of manifold zone parameters on hydrothermal performance of micro-channel HeatSink: A review

Ihsan Ali Ghani, Nor Azwadi Che Sidik, Natrah Kamaruzzaman, Wira Jazair Yahya, more

International Journal of Heat and Mass Transfer > 2017 > 109 > C > 1143-1161

Understanding of flow characteristics of microchannel heat sink (MCHS) is a prerequisite for its design. Performance optimization via accurate design of manifold zone and subsequent reduction of the flow maldistribution (MLD) remains challenging. This communication critically evaluates the effects of manifold zone related geometrical parameters including inlet-outlet flow arrangement, design and shape...

article

Heat transfer augmentation in a microchannel heat sink with sinusoidal cavities and rectangular ribs

Ihsan Ali Ghani, Natrah Kamaruzaman, Nor Azwadi Che Sidik

International Journal of Heat and Mass Transfer > 2017 > 108 > PB > 1969-1981

A three-dimensional numerical simulation was conducted to study the characteristics of fluid flow and heat transfer in new design of microchannel heat sink with sinusoidal cavities and rectangular ribs (MC-SCRR) for Reynolds number ranging from 100 to 800. A comparative analysis has conducted to the performance of the proposed design with related geometries such as microchannel with rectangular ribs...

article

Hydrothermal performance of microchannel heat sink: The effect of channel design

Ihsan Ali Ghani, Nor Azwadi Che Sidik, Natrah Kamaruzaman

International Journal of Heat and Mass Transfer > 2017 > 107 > C > 21-44

This review article reports the influence of channel zone related geometrical parameters such as corrugated channel and flow disruption (FD) on the hydrothermal performance (HP) of microchannel heat sink (MCHS). Rapid increase in the power density accompanied by extreme miniaturization of electronic packages that demanded efficient cooling in MCHS is still to be explored. Despite several dedicated...

article

Effect of potential role of p53 on embryo development arrest induced by H₂O₂ in mouse

De-Bao Hu, Zhong-Shu Li, Ihsan Ali, Li-Jie Xu, more

In Vitro Cellular & Developmental Biology - Animal > 2017 > 53 > 4 > 344-353

During mammalian embryo development in vitro, mechanism of embryonic development arrest caused by oxidative stress has not been clear so far. The tumor suppressor protein p53 controls cell cycle and programmed cell death by regulating relevant signal pathway. Recent researches revealed that the concentration and distribution of p53 are closely related with reactive oxygen species (ROS). The main objective...

article

Mitigation of Packet Loss Using Data Rate Adaptation Scheme in MANETs

Muhammad Saleem Khan, Saira Waris, Ihsan Ali, Majid I. Khan, more

Mobile Networks and Applications > 2018 > 23 > 5 > 1141-1150

Node’s mobility, bursty data traffic, and dynamic nature of the network make congestion avoidance and control a challenging task in Mobile Adhoc Networks (MANETs). Congestion results in high packet loss rate, increased delays, and wastage of network resources due to re-transmissions. In this paper, we propose In-route data rate adaptation to avoid packet loss. Proposed scheme is based on the analysis...

article

Coverage Differentiation Based Adaptive Tx-Power for Congestion and Awareness Control in VANETs

Syed Adeel Ali Shah, Ejaz Ahmed, Feng Xia, Ahmad Karim, more

Mobile Networks and Applications > 2018 > 23 > 5 > 1194-1205

The use of Information and Communication Technology (ICT) as a copilot for the drivers has a potential to improve traffic safety and efficiency. A key challenge in integrating ICT in vehicular networks is to provide the mechanisms for the delivery of safety messages called beacons. In particular, finding the trade-off between providing sufficient coverage and controlling channel congestion remains...

article

Prevalence of CTX-M extended-spectrum beta-lactamases and sequence type 131 in Korean blood, urine, and rectal Escherichia coli isolates

Sarah E. Graham, Lixin Zhang, Ihsan Ali, Yong Kyun Cho, more

Infection, Genetics and Evolution > 2016 > 41 > C > 292-295

A high proportion of extended-spectrum beta-lactamase (ESBL) producing Escherichia coli are of the ST131 lineage, but there are few estimates of ST131 prevalence among ESBL-negative E. coli. Without this information, it is difficult to evaluate the contribution of the ST131 lineage to the emergence and spread of ESBL E. coli. A total of 1658 E. coli isolates were collected at Gachon University Gil...

article

Prevalence of multi-drug resistant uropathogenic Escherichia coli in Potohar region of Pakistan

Ihsan Ali, Zara Rafaque, Safia Ahmed, Sajid Malik, more

Asian Pacific Journal of Tropical Biomedicine > 2016 > 6 > 1 > 60-66

To scrutinize patterns of multi-drug-resistant uropathogenic Escherichia coli (UPEC) strains and particularly of fluoroquinolone-resistance this is an alternative choice for the treatment of urinary tract infections.Bacterial samples (n = 250) were collected from out-patients from August 2012 to August 2014 Islamabad. Antibiotic susceptibility profiling and determination of minimum inhibitory concentrations...

article

Temperature dependent structural and magnetic behavior of Y-type hexagonal ferrites synthesized by sol–gel autocombustion

Mukhtar Ahmad, Muhammad Ahmad, Ihsan Ali, Waheed Ahmad, more

Journal of Alloys and Compounds > 2015 > 651 > C > 749-755

A Y-type hexaferrite (Sr₂Ni₂Fe₁₂O₂₂) sample was synthesized using the sol–gel autocombustion and heat treated at different temperatures (800–1200 °C). Different experimental techniques such as differential thermal and thermo-gravimetric analyses, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and vibrating sample magnetometry...

article

Influence of the divalent and trivalent ions substitution on the structural and magnetic properties of Mg0.5−xCdxCo0.5Cr0.04TbyFe1.96−yO4 ferrites prepared by sol–gel method

Ghulam Mustafa, M.U. Islam, Wenli Zhang, Abdul Waheed Anwar, more

Journal of Magnetism and Magnetic Materials > 2015 > 387 > C > 147-154

A series of the divalent and trivalent co-substituted Mg_0.5−xCd_xCo_0.5Cr_0.04Tb_yFe_1.96−yO₄ spinel ferrite systems (where x=0–0.5 in steps of 0.1 and y=0.00–0.10 in steps 0.02) are synthesized by sol–gel auto combustion method. The product materials were characterized by the thermo gravimetric analysis and differential scanning calorimetry (TGA/DSC), Fourier transform infrared spectra (FTIR), nitrogen...

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INFONA - science communication portal

Search results for: Ihsan Ali

The potential toxicity of chemically fabricated silver nanomaterials based on accumulation and histological changes in fish (Cyprinus carpio)

Microscopic analysis of plant‐mediated silver nanoparticle toxicity in rainbow trout fish (Oncorhynchus mykiss)

Biological synthesis of silver nanoparticles using animal blood, their preventive efficiency of bacterial species, and ecotoxicity in common carp fish

Maximization of heat transfer density from a vertical array of flat tubes in cross flow under fixed pressure drop using constructal design

Phylogeny, sequence-typing and virulence profile of uropathogenic Escherichia coli (UPEC) strains from Pakistan

Enhanced mechanical properties of fiber reinforced concrete using closed steel fibers

Pterostilbene exerts a protective effect via regulating tunicamycin-induced endoplasmic reticulum stress in mouse preimplantation embryos

Heat transfer enhancement in microchannel heat sink using hybrid technique of ribs and secondary channels

Reducing Power Consumption in Wireless Body Area Networks: A Novel Data Segregation and Classification Technique

A Review on energy management schemes in energy harvesting wireless sensor networks

The effect of manifold zone parameters on hydrothermal performance of micro-channel HeatSink: A review

Heat transfer augmentation in a microchannel heat sink with sinusoidal cavities and rectangular ribs

Hydrothermal performance of microchannel heat sink: The effect of channel design

Effect of potential role of p53 on embryo development arrest induced by H₂O₂ in mouse

Mitigation of Packet Loss Using Data Rate Adaptation Scheme in MANETs

Coverage Differentiation Based Adaptive Tx-Power for Congestion and Awareness Control in VANETs

Prevalence of CTX-M extended-spectrum beta-lactamases and sequence type 131 in Korean blood, urine, and rectal Escherichia coli isolates

Prevalence of multi-drug resistant uropathogenic Escherichia coli in Potohar region of Pakistan

Temperature dependent structural and magnetic behavior of Y-type hexagonal ferrites synthesized by sol–gel autocombustion

Influence of the divalent and trivalent ions substitution on the structural and magnetic properties of Mg0.5−xCdxCo0.5Cr0.04TbyFe1.96−yO4 ferrites prepared by sol–gel method

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