Search results for: Umair Ali

Items from 1 to 18 out of 18 results

article

Isothianaphthene diimide: an air-stable n-type semiconductor

Xiaolong Chen, Yaowu He, Muhammad Umair Ali, Yu He, more

Science China Chemistry > 2019 > 62 > 10 > 1360-1364

Herein, we propose a new strategy to develop air-stable n-type organic semiconductors with non-classical thiophene aromatic diimide derivatives by replacing aromatic naphthalene with a heteroaromatic isothianaphthene core. We designed and successfully synthesized the isothianaphthene core based diimide material, N,N′-bis(n-hexyl)isothianaphthene-2,3,6,7-tetra-carboxylic acid diimide (BTDI-C6) as an...

article

Vacuum‐Drying Processed Micrometer‐Thick Stable CsPbBr₃ Perovskite Films with Efficient Blue‐To‐Green Photoconversion

Yongming Yin, Muhammad Umair Ali, Ming Liu, Jingsheng Miao, more

Small > 15 > 31 > n/a - n/a

Metal halide perovskite materials have attracted great attention owing to their fascinating optoelectronic characteristics and low cost fabrication via facile solution processing. One of the potential applications of these materials is to employ them as color‐conversion layers (CCLs) for visible blue light to achieve full‐color displays. However, obtaining thick perovskite films to realize complete...

article

Genome Wide Identification and Expression Profiles of TALE Genes in Pineapple (Ananas comosus L)

Hina Ali, Yanhui Liu, Syed Muhammad Azam, Imran Ali, more

Tropical Plant Biology > 2019 > 12 > 4 > 304-317

TALE (Three Amino-acid Loop Extension) transcription factors belong to a large gene family in plants and are also widespread in other Eukaryotes, including animals. We have in detail studied TALE genes in the economically important crop plant pineapple (Ananas comosus) but also compared these gene sequences with other plant TALE-genes. Using the webtool HMMER we found 18 TALE gene sequences in the...

article

Seismically induced soft-sediment deformation structures in an active seismogenic setting: The Plio-Pleistocene Karewa deposits, Kashmir Basin (NW Himalaya)

Umair Ali, Syed Ahmad Ali

Journal of Structural Geology > 2018 > 115 > C > 28-46

Recent uplift in the NW Himalaya has exposed more than 1000 m of the Plio-Pleistocene so-called Karewa deposits in Kashmir. These deposits mostly consist of horizontal-stratified sand, silt, clay, conglomerates, and lignite beds. The sedimentary succession belongs to the Kashmir basin that is located in a seismically active zone. The area was previously affected by large earthquakes.The observed soft-sediment...

article

A comprehensive review on inverter topologies and control strategies for grid connected photovoltaic system

Kamran Zeb, Waqar Uddin, Muhammad Adil Khan, Zunaib Ali, more

Renewable and Sustainable Energy Reviews > 2018 > 94 > C > 1120-1141

The application of Photovoltaic (PV) in the distributed generation system is acquiring more consideration with the developments in power electronics technology and global environmental concerns. Solar PV is playing a key role in consuming the solar energy for the generation of electric power. The use of solar PV is growing exponentially due to its clean, pollution-free, abundant, and inexhaustible...

article

Hydrochemical characteristics and spatial analysis of groundwater quality in parts of Bundelkhand Massif, India

Syed Ahmad Ali, Umair Ali

Applied Water Science > 2018 > 8 > 1 > 1-15

The tribulations of water quality have become more serious than the quantity, as the environmental evils are getting more severe day by day in different parts of the world. Large number of components like soil, geology, sewage disposal, effluents and other environmental conditions in which the water tends to reside or move and interact with ground and biological characteristics, greatly persuade the...

article

A non-fullerene small molecule processed with green solvent as an electron transporting material for high efficiency p-i-n perovskite solar cells

Jingsheng Miao, Zhao Hu, Ming Liu, Muhammad Umair Ali, more

Organic Electronics > 2018 > 52 > C > 200-205

We discovered that an alcohol soluble non-fullerene small molecule perylene diimides derivative (PDIN), which is a traditional cathode interface material, can be used as a promising electron transporting material for efficient p-i-n perovskite solar cells. Surprisingly, by using 2,2,2-Trifluoroethanol as solvent for PDIN, it can easily form high quality PDIN thin film onto the perovskite layer and...

article

Influence of different concentrations of Indole Butyric Acid on Cuttings of Avocado

Umair Ali, Muqarrab Ali, Muhammad Nazim, Qurat-Ul-Ain Sadiq, more

82-86

This research work was design to investigate the influence of different treatments of Indole Butyric Acid (IBA) on the cuttings of avocado. Cuttings of avocado were transplanted from the sand beds to the plastic bags after a year with mixture of soil garden, farmyard manure, and silt of equal proportion. The study was conducted in green house at University of Poonch Rawalakot, during 2017. The experiment...

article

Evaluating linear geological structures in seismogenic compressional setting, Kashmir basin, NW-Himalaya

Syed Ahmad Ali, Umair Ali

Spatial Information Research > 2017 > 25 > 6 > 801-811

Kashmir basin situated in tectonically active area NW Himalaya is surrounded by a number of seismogenic faults. In the present study, the structures are identified using the edge enhancement filters, false colour composite and DEM derived products like shaded relief, aspect, slope, drainage network, and 3D profiling. Linear structural feature map was analysed using density, orientation, length, and...

article

Solar light triggered catalytic performance of graphene-CuO nanocomposite for waste water treatment

Aqsa Arshad, Javed Iqbal, M. Siddiq, M. Umair Ali, more

Ceramics International > 2017 > 43 > 14 > 10654- 10660

In this work, the effect of a new nanocomposite material on the photodegradation of methylene blue is demonstrated. The nanocomposite is synthesized by the combination of cupric oxide (CuO) with graphene nanoplatelets (GNPs) and characterized by XRD, FE-SEM, FTIR, Raman, and UV–vis spectroscopy. Interestingly, the inclusion of GNPs with CuO enhances the photocatalytic properties of nanocomposite without...

chapter

Characterization of cuttlebone for adaptive infills

Umair Ali Rana, Tan Wei Koon, Khaled Mostafa, Aamer Ahmed Baqai, more

2017 8th International Conference on Mechanical and Aerospace Engineering (ICMAE) > 591 - 595

2017 8th International Conference on Mechanical and Aerospace Engineering (ICMAE)

One of the main advantages of Additive Manufacturing (AM) is that the internal volume of a part has no longer to be solid. Different infill structures can be implemented inside the internal volume, with the ability to control the filling percentage. Cellular based structures have a self-repairing and fault-tolerance properties, which makes them a potential candidate for bio-mimicking structures. These...

article

Modified implicit fractional difference scheme for 2D modified anomalous fractional sub-diffusion equation

Umair Ali, Farah Aini Abdullah, Syed Tauseef Mohyud-Din

Advances in Difference Equations > 2017 > 2017 > 1 > 1-14

In this paper, we solve two-dimensional modified anomalous fractional sub-diffusion equation using modified implicit finite difference approximation. The stability and convergence of the proposed scheme are analyzed by the Fourier series method. We show that the scheme is unconditionally stable and the approximate solution converges to the exact solution. A numerical example is given to show the application...

article

Phosphorus extraction and sludge dissolution by acid and alkali treatments of polyaluminum chloride (PAC) treated wastewater sludge

Toor Umair Ali, Dong-Jin Kim

Bioresource Technology > 2016 > 217 > C > 233-238

Phosphorus (P) leaching characteristics of polyaluminium chlorides (PAC) treated wastewater sludge was investigated by wet chemicals (acid and alkali). Sludge fractionation showed non-apatite inorganic P was the dominant P (90.9% of TP) while apatite P only accounted for 3.7%. After 2h extraction with 1N NaOH or 2N HCl, 80.5% and 77.9% of total P was leached, while sludge dissolution reached 72.7%...

article

Effect of pretreatment and anaerobic co-digestion of food waste and waste activated sludge on stabilization and methane production

Erdenebayar Naran, Umair Ali Toor, Dong-Jin Kim

International Biodeterioration & Biodegradation > 2016 > 113 > C > 17-21

The effect of pretreatment and anaerobic co-digestion of food waste (FW) and waste activated sludge (WAS) was assessed by the reductions of total suspended solids (TSS), volatile suspended solids (VSS), COD removal and methane production. Thermal treatment and anaerobic digestion reduced VSS up to 43.4% (FW) and 43.1% (FW + WAS) by increasing the solubilization of the feedstock. Methane yields of...

article

Effect of organics on nitrous oxide emission during wastewater nitrification with enriched nitrifiers

Umair Ali Toor, Dong-Woo Han, Dong-Jin Kim

International Biodeterioration & Biodegradation > 2015 > 102 > C > 94-99

Nitrous oxide (N₂O) is a potent greenhouse gas emitted during wastewater nitrification and denitrification. Batch nitrification with enriched nitrifying sludge and municipal wastewater was conducted in a laboratory reactor (working volume: 0.5 L) to investigate the impacts of organic components on N₂O emissions at different aeration rates (10 and 20 mL/min) and NH4+-N concentrations (25, 50, and 100 mg/L)...

article

Performance Evaluation of Mobile Ad Hoc Routing Mechanisms

Shahzana Memon, Pardeep Kumar, Umair Ali Khan, Tanesh Kumar

Wireless Personal Communications > 2015 > 85 > 2 > 377-392

Routing protocols play a pivotal role in energy-efficient, reliable and robust communication in Mobile Ad hoc Networks (MANETs). In order to ensure efficient communication, the optimal operation setting of a routing protocol is essential to be ascertained. In this paper, we perform a comparative analysis of three most popular MANET routing protocols, namely, ad hoc on demand distance vector (AODV),...

article

Estimation of N2O emission during wastewater nitrification with activated sludge: Effect of ammonium and nitrite concentration by regression analysis

Toor Umair Ali, Zubair Ahmed, Dong-Jin Kim

Journal of Industrial and Engineering Chemistry > 2014 > 20 > 4 > 2574-2579

Empirical N ₂ O emission correlations were developed from wastewater nitrification in a controlled laboratory scale batch reactor. The results showed that higher concentrations of ammonium and nitrite emitted more N ₂ O. The N ₂ O-N yields were 0.092–0.124 (synthetic wastewater) and 0.124–0.152kgN ₂ O-N/kg consumed NH ₄ ⁺ -N (municipal wastewater). Regression...

chapter

A Reinforcement Learning Framework for Dynamic Power Management of a Portable, Multi-camera Traffic Monitoring System

Umair Ali Khan, Bernhard Rinner

2012 IEEE International Conference on Green Computing and Communications > 557 - 564

2012 IEEE International Conference on Green Computing and Communications (GreenCom)

Dynamic Power Management (DPM) refers to a set of strategies that achieves efficient power consumption by selectively turning off (or reducing the performance of) a system components when they are idle or are serving light workloads. This paper presents a Reinforcement Learning (RL) based DPM technique for a portable, multi-camera traffic monitoring system. We target the computing hardware of the...

Filter options

Publication date

Last year (1)
Last 3 years (10)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

INFONA - science communication portal

Search results for: Umair Ali

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Publication type

Publication language

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options