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Muneer Ahmed Mr
PeopleLooking for an organization where I can better utilize my scientific and technical skills in the arena of research or work as a faculty person. Besides, I am also willing to work as professional engineer with dedication and diligence in dynamic environment. Likewise, I've been a committed and tenacious candidate throughout my career. I am aware of the level of commitment, dedication and strength required. Despite the fact that...
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Biocompatibility and bioactivity of bearing loaded metallic implants
PublicationPresentation of developed titanium alloy base composite materials possessing better biocompatibility, longer lifetime and bioactivity behavior for bearing loaded implants, e.g. hip joint and knee joint endoproshtesis.
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OCENA WŁAŚCIWOŚCI STALI STOSOWANEJ W STARYCH OBIEKTACH KOLEJOWYCH
PublicationThe scope of the paper is to give an introduction to the assessment subject matter of steel properties used in old railway bridges. The mechanical and chemical properties of construction steel extracted from old steel bridges are generally investigated by tensile tests, impact tests through the Charpy pendulum impact V-notch, and an optical emission spectrometer. Besides descriptions of the tests, the chosen chemical and mechanical...
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Combination of instrumental and qualitative descriptive analysis for evaluation of selected tonic waters quality features
PublicationThe combination of sensory and instrumental analysis was applied for quality assurance of selected tonic waters. The Quantitative Descriptive Analysis (QDA) in terms of fourteen sensory attributes (aroma, astringency, bite, burn, numbing, tongue heaviness, carbonation, mouth coating, sweet taste, sour taste, bitter taste, sweet aftertaste, sour aftertaste, bitter aftertaste) of selected tonic waters was performed by sensory experts....
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A vertical subway, namely, an internal transport system in a 1200 m tall building,
PublicationThis article deals with the topic of designing an efficient internal transport system in a 1200 m tall multifunctional building called the “World’s Tower” due to its symbolism and specific architectural form. The building comprises four towers whose bases are 75 m/75 m long each and whose height is 1200 m. Two of the towers are located along the north-south axis while the two others along the east-west one. The towers are joined...
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Identification of volatile compounds based on the electrocatalytic gas sensor responses
PublicationMeasured response in case of electrocatalytic gas sensors is in form of a voltamperometric characteristic. Current-voltage (I-V) response shape depends on the gas type and its concentration. Such response contains significantly more information comparing with typical electrochemical sensors, but is quite difficult to analyze. When I-V curve contains current peaks, position of such peaks can be used...
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High-performance method of carbon nanotubes modification by microwave plasma for thin composite films preparation
PublicationIn this work we present a simple and efficient method of nitrogen plasma modification of carbon nanotubes (CNTs). The process allows for treatment of the nanotubes in the form of powder with quite a high yield (65 mg of CNTs per hour). The modified carbon nanotubes contain approx. 3.8% of nitrogen, mostly in the pyridinic form. Plasma treated CNTs exhibit better dispersibility in water and higher electric capacitance than pristine...
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Ochrona odbiorników GNSS przed zakłóceniami celowymi
PublicationArtykuł dotyczy zastosowania algorytmów przestrzennego cyfrowego przetwarzania sygnałów dla potrzeb selektywnej eliminacji sygnałów zakłócających pracę odbiorników nawigacji satelitarnej GNSS. Omówiono podatność tych odbiorników na ataki elektroniczne typu zagłuszanie oraz spoofing. Polegają one na celowej emisji sygnałów niepożądanych w paśmie pracy systemu. Następnie przedstawiono koncepcję przeciwdziałania tego rodzaju zakłóceniom...
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Wpływ surfaktantu anionowego LAS na mobilność frakcji fosforu w osadzie czynnym w zmiennych warunkach fizyczno-chemicznych
PublicationPrzedstawiono wyniki badań wpływu anionowego surfaktantu LAS na mobilność frakcji fosforu w osadzie czynnym. Podstawową rolę w procesie uwalniania fosforu do cieczy nadosadowej w warunkach beztlenowych pełniły: frakcja związana z substancją organiczną i frakcja związana z żelazem.
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Catch an innovation
PublicationEnforcement of innovation is often seen as something imperceptible, something that one can't learn. This article is trying to approve that organizations can learn how to deploy innovations.The knowledge can be saved in such matter that it will be possible to reuse it later.
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Self-compacting grout to produce two-stage concrete
PublicationTraditional concrete (TC) is primarily composed of a mixture of cement, fine and coarse aggregates, and water. TC is made by mixing together all the components before placing them. Using non-traditional concrete (two-stage concrete) to solve and to eliminate the problem of the aggregate segregation which appears in TC and in the self-compacting concrete. Two-stage concrete (TSC) consists of two main components, namely the grout...
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Vitamin D signaling and melanoma: role of vitamin D and its receptors in melanoma progression and management
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The features of steel surface hardening with high energy heating by high frequency currents and shower cooling
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Probability of second live birth after first natural and medically assisted reproduction‐mediated live birth: A historical cohort study
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Prevalence and Factors Associated With Intertwin Birth Weight Discordance Among Same-Sex Twins in Lombardy, Northern Italy
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Novel topology of compact coplanar waveguide resonant cell low-pass filter
PublicationIn this study, a novel pseudoelliptic function low-pass filter (LPF) constituted by a compact coplanar waveguide resonant cell has been designed and manufactured. The lumped-element seven-pole prototype has been adequately realized by using complementary perturbations located both in signal line and ground plane metallization. The fabricated uniplanar LPF offers a compact size of 5.6 x 9.8 mm2, return loss better than 26 dB over...
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Alternative cogeneration thermodynamic cycles for domestic ORC
PublicationThe Organic Flash Cycle (OFC) is suggested as a vapor power cycle that could potentially improve the efficiency of utilization of the heat source. Low and medium temperature finite thermal sources are considered in the cycle. Additionally the OFC’s aim is to reduce temperature difference during heat addition. The study examines 2 different fluids. Comparisons are drawn between the OFC and an optimized basic Organic Rankine Cycle...
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Experimental study of the use of electric car powered with stationary solar and electrochemical batteries in Northern Poland
PublicationThe subject of this paper is an experimental analysis of a Nissan LEAF electric car equipped with 24 kWh battery, powered from the standalone photo-voltaic (PV) charging station in Gdańsk, Poland. The calculations of charging process efficiency and range of test drives were conducted in two extreme situations (winter and summer) of sunlight and road conditions. Experiments were performed in the Laboratory of Innovative Power Technologies...
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Design of synchronous generator two inputs regulator based on hinf control theory.
PublicationThe power system is highly nonlinear system, its dynamics depends on system network configuration, system loading… etc. To overcome the above mentioned difficulties and fulfill the performance requirements the different control methods are considered and tested for design of synchronous generator control system. Application of the H optimization method to synchronous generator regulator based on measurement of generator voltage...
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Badanie i analiza układu antenowego dla potrzeb mobilnego urządzenia do wytwarzania kurtyny elektromagnetycznej
PublicationPrzedstawiono analizę układu antenowego, wchodzącego w skład prototypu mobilnego urządzenia do wytwarzania kurtyny elektromagnetycznej. Celem wykonania analizy było wyznaczenie położenia anten tworzących układ antenowy tak, aby uzyskać kompromis pomiędzy wzajemnym ich wpływem i rozmiarami masztu antenowego. Wzajemny wpływ anten oceniano z wykorzystaniem współczynnika S21 oraz charakterystyk promieniowania układu przez modelowanie...
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Implementation of localization and identification of ferromagnetic objects algorithm in labview enviroment
PublicationThe problem with detecting dangerous objects is still a matter of concern today. One of the methods of detecting dangerous objects is the magnetic method. While measuring a magnetic field in the surrounding of objects with ferromagnetic properties, it is possible to detect, localize and identify such object.
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Automatyczne projektowanie oraz efektywna optymalizacja wymiarów geometrycznych i topologii anten zminiaturyzowanych
ProjectsProject realized in Department of Microelectronic Systems according to UMO-2017/27/B/ST7/00563 agreement from 2018-06-29
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Cluster-glass behavior of a highly oxygen deficient perovskite, BaBi0.28Co0.72O2.2
PublicationZostała przeprowadzona synteza zwiąku typu perowskitowego BaBi0.28Co0.72O2.2. Stuktura krystalograficzna została określona poprzez dyfrakcję neutronową i promieniowania rentgenowskiego. Pomiary podatności magnetycznej AC i DC wskazują na zachowanie typu szkła klastrowego, które wynika z oddziaływań klastrów ferromagnetycznych.
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Superconductivity in the Einstein solid VAl10.1
PublicationWykonano pomiary podatności magnetycznej, oporu elektrycznego i ciepła właściwego dla VAl10.1. VAl10.1 jest nadprzewodnikiem II-go rodzaju z temperaturą krytyczną T_c = 1.53 K i górnym polem krytycznym 800 Oe.
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Pressure-induced superconductivity in CaFe2As2
PublicationNowo odkryty związek CaFe2As2 pod wpływem zewnętrznego ciśnienia 0.69 GPa przechodzi w stan nadprzewodnictwa z temperaturą krytyczną powyżej 10K.
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The first order phase transition and superconductivity in BaNi2As2 single crystals
PublicationDyskutowane są synteza i właściwości fizyczne monokryształów BaNi2As2. BaNi2As2 krystalizuje w strukturze ThCr2Si2, a stałe sieciowe wynoszą odpowiednio: a = 4.112(4) A i c = 11.54(2) A. Pomiar oporu elektrycznego, zmiennopolowej podatności magnetycznej, ciepła właściwego, pokazują objętościowy efekt nadprzewodzący z Tc = 0.7 K.
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Synthesis and properties of CaFe2As2 single crystals
PublicationOpisana została synteza i podstawowe właściwości fizyczne monokryształów CaFe2As2. CaFe2As2 krystalizuje w strukturze ThCr2Si2, stałe sieciowe wynoszą odpowiednio: a = 3.887(4) A and c = 11.758(23) A.
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Spin probe dynamics in relation to free volume in crystalline organics from ESR and PALS: N-tridecane
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Impact of yttria stabilization on Tb3+ intra-shell luminescence efficiency in zirconium dioxide nanopowders
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Pressure-induced phase transition in LiLuF4:Pr3+investigated by an optical technique
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Pressure evolution of LiBaF3:Eu2+luminescence
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Temperature and pressure dependence of the luminescence of Eu2+-doped fluoride crystals BaxSr1−xF2(x= 0, 0.3, 0.5 and 1): experiment and model
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High pressure evolution of YVO4:Pr3+luminescence
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High pressure luminescence spectra of CaMoO4:Pr3+
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High pressure and time-resolved luminescence spectra of Ca3Y2(SiO4)3doped with Eu2+and Eu3+
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Luminescence properties of different Eu sites in LiMgPO4:Eu2+, Eu3+
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New Eu2 +sites in KMgF3:Eu2 +crystal
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Pressure dependence of the emission in CaF2 : Yb2+
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Luminescence of Gd2(WO4)3:Ln3+at ambient and high hydrostatic pressure
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Time evolution of luminescence of Sr2SiO4:Eu2+
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Temperature evolution of the luminescence decay of Sr0.33Ba0.67Nb2O6: Pr3+
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High pressure luminescence spectra of CaMoO4:Ln3+(Ln = Pr, Tb)
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Synthesis and properties of CaFe2As2single crystals
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Superconductivity in the Einstein solid V Al10.1
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The first order phase transition and superconductivity in BaNi2As2single crystals
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First-principles calculations of the lattice dynamics of CuInSe2
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First-principles calculations for phonons in AgGaX2(X = Se,Te) chalcopyrite crystals
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Structure and elastic properties of Mg(OH)2from density functional theory
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The effects of confinement in pores built of folded graphene sheets on the equilibrium of nitrogen monoxide dimerisation reaction
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The phonon-mediated superconductivity in sheet
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