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Comparison of Noise Removal Techniques Using Bilateral Filter
Manjeet Kaur,Shailender Gupta 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.2
This paper compares the standard Bilateral Filter and its variants such as Modified Bilateral Filter(MBF), Joint Bilateral Filter(JBF), Fuzzy Bilateral Filter(FBF) and Switching Bilateral Filter(SBF). For comparison purpose various performance matrices such as: Peak Signal to Noise Ratio(PSNR), Mean Square Error(MSE), Mean Absolute Error(MAE), Normalized Color Difference(NCD), Perceptual Quality and Time complexity are used . All the techniques are implemented using simulation in MATLAB-9. It is found that the standard BF is the best technique to remove Gaussian noise from images with high PSNR value. However when the image is corrupted with mixed Gaussian and impulse noise, SBF gives the best results of PSNR value, MSE value, MAE value , NCD value and a good picture quality of de-noised image.
Kumar, Manjeet,Yun, Ju-Hyung,Bhatt, Vishwa,Singh, Bikramjeet,Kim, Joondong,Kim, Joohn-Sheok,Kim, Byung Soo,Lee, Chang Yeon Elsevier 2018 ELECTROCHIMICA ACTA Vol.284 No.-
<P><B>Abstract</B></P> <P>In this article, different sized CeO<SUB>2</SUB> nanoparticles were synthesized using one step low-cost solvothermal method with various reaction time. Defect states were induced due to the reduction of Ce<SUP>4+</SUP> into Ce<SUP>3+</SUP> valence state. X-ray photoelectron spectroscopy results recommend that Ce<SUP>3+</SUP> valence states and defects in the form of oxygen vacancies be present on the surface of CeO<SUB>2</SUB> nanoparticles. Such availability of oxygen vacancies provided high specific capacitance 142.5 Fg<SUP>-1</SUP> at a current density of 0.25 Ag<SUP>-1</SUP> in three electrode system using 1 M Na<SUB>2</SUB>SO<SUB>4</SUB> electrolyte. There is an increase in faradaic reactions taken place on the surface which is attributed to the high surface area, more oxygen vacancies, and increased diffusion rate. The highest energy density is obtained to be ∼12.68 Wh/kg, and the stability result confirmed that the capacitance retention is ∼75% after 1000 cycles of operation. These results indicate that CeO<SUB>2</SUB>@20h NPs is a potential candidate as electrode materials for supercapacitor applications due to their fast mutation between Ce<SUP>4+</SUP> to Ce<SUP>3+</SUP> oxidation state.</P>
Jassal, Manjeet,Chattopadhyay, Ritwik,Ganguly, Debojyoti The Korean Fiber Society 2004 Fibers and polymers Vol.5 No.2
A series of superabsorbents based on acrylic acid (AA), sodium acrylate, 2-acrylamido-2-methylpropane sulphonic acid, N,N'-methylene bis-acrylamide (MBA) were prepared by inverse suspension polymerization. These hydrogels were further crosslinked on the surface with polyethylene glycol-600 (PEG-600). The water absorbency or swelling behaviors for these xerogels in water and 0.9% saline solutions, both under free condition and under load were investigated. Absorption characteristics of these hydrogels were found to depend on nature and concentration of crosslinker in the system. It was also found that the saline absorption was significantly improved as the incorporation of AMPS in the polymer was increased. The surface crosslinking introduced in the polymers was found to improve the absorption under load characteristics without lowering the free water absorption capacities of the polymer to a considerable extent.
Singh, Manjeet,Rana, Tanka R.,Kim, SeongYeon,Kim, Kihwan,Yun, Jae Ho,Kim, JunHo American Chemical Society 2016 ACS APPLIED MATERIALS & INTERFACES Vol.8 No.20
<P>Silver nanowire (AgNW) film has been demonstrated as excellent and low cost transparent electrode in organic solar cells as an alternative to replace scarce and expensive indium tin oxide (ITO). However, the low contact area and weak adhesion with low-lying surface as well as junction resistance between nanowires have limited the applications of AgNW film to thin film solar cells. To resolve this problem, we fabricated AgNW film as transparent conductive electrode (TCE) by binding with a thin layer of sputtered ZnO (40 nm) which not only increased contact area with low-lying surface in thin film solar cell but also improved conductivity by connecting AgNWs at the junction. The TCE thus fabricated exhibited transparency and sheet resistance of 92% and 20 Omega/boxed dot], respectively. Conductive atomic force microscopy (C-AFM) study revealed the enhancement of current collection vertically and laterally through AgNWs after coating with ZnO thin film. The CuInGaSe2 solar cell with TCE of our AgNW(ZnO) demonstrated the maximum power conversion efficiency of 13.5% with improved parameters in comparison to solar cell fabricated with conventional ITO as TCE.</P>
Horsley Hills : Tourists’ Perception
S.Kumaran,Manjeet Singh 한국문화관광학회 2022 문화관광연구 Vol.24 No.1
This research has been conducted on perception of tourist about hill station to understand the profile of the tourist visiting Horsley Hill and their opinion about infrastructure facilities, cost of stay, food and hygienic conditions. Based on the findings of the research, suggestions have been provided for the better tourism development. The revenue of the Horsley Hills can be get improved by effective implementation of the suggestions provided in the research.
A Formal Policy Oriented Access Control Model for Secure Enterprise Network Environment
Manpreet Singh,Manjeet Singh Patterh,Tai-Hoon Kim 보안공학연구지원센터 2009 International Journal of Security and Its Applicat Vol.3 No.2
In this paper we use Security Evaluation Criteria as basis to develop the Network access control model for enterprise wide network computing environment. The Network access control model addresses both the access control and information flow control requirements of the enterprise network system. The security architecture of the model attempts to ensure authorized access to network resources and secure flow of information between network entities. The underlying concept of the Network access control model relies on the separation of the access control mechanism from the access control policy. This enables support for multiple access control policies within a single model specification. A further advantage of Network Access control model is that it is highly extensible, since it can be augmented with any new policy that a specific application or a user may require. The precision property is satisfied as network access control model is written in a formal mathematical notation. The property of simplicity is satisfied as only the security properties related to network computing system are modeled.
Rashi Agarwal,Manjeet Jassal,Ashwini K. Agrawal 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.98 No.-
Moisture absorption and transport properties of fabrics determine the thermo-physiological comfort ofthe apparel. The study aims to investigate the application of hydrophilic metal oxide nanostructures onpoly(ethylene terephthalate) (PET) fabrics and their influence on the comfort properties of PET. Both, thesol-gel synthesized nano sols and commercially available nanoparticles (NPs) of SiO2 and TiO2 withdifferent concentrations were applied on PET fabric alone or in combination with a hydrophilic resin. Thecomposite of nanoparticles and resin exhibited radical improvement in the moisture managementbehavior of PET substrate, which is crucial for its industrial viability for activewear. At add-on of < 2 wt%,this nano-finishing agent led to remarkable enhancement in wettability, wickability, and evaporation ofmoisture. Based on the surface morphology and chemical characteristics of the treated fabrics, amechanism has been proposed to explain the role of nanoparticles in the enhancement of moisturemanagement properties. It has been shown that in the presence of resin, the nanoparticles form a durablenetwork on the surface of PETfibers and play a synergistic role in moisture and heat management of thefinished fabric. Infrared thermography has been used to demonstrate the potential of such combinationto attain enhanced comfort properties.
A Study on Tourism Facilities at Courtallam: the Spa of South India
S.Kumaran,Manjeet Singh 세계문화관광학회 2019 International Journal of Culture and tourism Resea Vol.12 No.1
Waterfalls tourism is becoming popular at global level. Among the various waterfalls in our country, Courtallam has a unique characteristic of healing some of the health ailments. Every year the number of tourists visiting Courtallam is increasing, there is greater scope for the development of the destination and tourism business as well. By improving the cleanliness and hygiene condition of the destination and also by implementing the suggestions provide in the research study, the inflow of the visitors will be improved and there by the local revenue will be increased remarkably