Ldh-Modified Graphene Oxide Composites As Highly Effective Adsorbents For Decontamination Of U(ⅵ) From Water

Lakshmi Prasanna Lingamdinne(Lingamdinne Lakshmi Prasanna),Chang Yoon-Young(장윤영),Jong-Soo Choi(최종수),Seon Hwa Lim(임선화),Janardhan Reddy Koduru,Jae-Kyu Yang(양재규) 대한환경공학회 2021 대한환경공학회 학술발표논문집 Vol.2021 No.11

Ciphertext-Policy Attribute-Based Encryption for Access Control of Data in Cloud

Vijaya Lakshmi Paruchuri,N Lakshmipathi Anantha,Vara Lakshmi Konagala,Debnath Bhattacharyya 보안공학연구지원센터 2016 International Journal of Software Engineering and Vol.10 No.8

In Distributed systems, the users with a certain set of attributes can only be able to access the data. At present this process can be done through a trusted server where we will store the data and there will be certain constraints on the access of the data. In this case there will be a possibility to compromise the data and so the confidentiality of the data is lost. An Attribute-Based Encryption (ABE) is an encryption scheme, where users with some attributes can decrypt ciphertexts associated with these attributes. Now this is our turn to develop a system with a more complex policy of access of the encrypted data and which can be called as Ciphertext Policy Attribute-based Encryption (CP-ABE). By using this method the information can't be traded off even through the trusted server where the information is put away. These methods are also secure against the collusion attack. In this method attributes are generally assigned in the form of access trees. The attributes are placed at the leaf nodes of this access tree. In older Attribute-based encryption strategies encrypted data is described by the attributes and policies are given to the user’s keys, while in our system users credentials are described by the attributes and there will be a policy where it tells us about who should access or decrypt the data. So, this type of access method is very much closer to the Role-based attribute-based encryption.

Exogenously applied plant growth regulator protects rice from heat-induced damage by modulating plant defense mechanism

Lakshmi G.,Beena R.,Soni K. B.,Viji M. M.,Jha Uday Chand 한국작물학회 2023 Journal of crop science and biotechnology Vol.26 No.1

This study was undertaken to investigate the efect of biostimulants such as spermidine (1 mM, 2 mM), indole-3-acetic acid (10–3 M, 10–5 M), brassinolide (1 mg/L, 2 mg/L) and boron (50 mg/L, 100 mg/L) on protecting rice plants from heat-induced damage. Two rice genotypes, Nagina 22 (heat tolerant) and Manu Ratna (heat susceptible), primed with biostimulant solution were germinated, 14-day-old seedlings were further foliar sprayed with respective treatment solutions prior to the induction of heat stress (42 °C, 48 h). Heat stress-induced fatal damages to non-biostimulant-treated rice seedlings, whereas biostimulanttreated ones were protected from heat stress-induced damages, marked by lower levels of malondialdehyde (MDA), H2O2 coupled with increased levels of seedling vigour index (SVI), chlorophyll and proline contents. Results showed that 1 mM spermidine (Spd) and 10–5 M indole-3-acetic acid (IAA)-treated rice seedlings showed increased heat tolerance and were evaluated for its efect at reproductive stage stress in a pot culture study. At the panicle initiation stage, plants were pretreated with 1 mM Spd and 10–5 M IAA followed by the induction of heat stress, keeping it in a temperature-controlled polyhouse (42.1 °C, till the time of harvest). Spd- and IAA-pretreated heat-exposed plants exhibited yield improvement over control by altering physiological, biochemical and molecular mechanisms. Therefore, we conclude from our results that foliar IAA or Spd applications can be regarded as an agronomic strategy for mitigating the adverse efects of heat stress conditions on rice plants.

Sleep and Aging

Lakshmi K. Josyula 한국노인복지학회 2004 International Journal of Welfare for the Aged Vol.10 No.-

Synthesis of Co(II), Ni(II) and Cu(II) Complexes from Schiff base Ligand and Reactivity Studies with Thermosetting Epoxy Resin

Lakshmi, B.,Shivananda, K.N.,Prakash, Gouda Avaji,Rama, Krishna Reddy K.,Mahendra, K.N. Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.5

A hybrid thermosetting maleimido epoxy compound 4-(N-maleimidophenyl) glycidylether (N-MPGE) containing Co(II), Ni(II) and Cu(II) ions was prepared by curing N-MPGE and tetradentate Schiff base Co(II), Ni(II) and Cu(II) complexes. The curing polymerization reaction of N-MPGE with metal complexes as curing agents was studied. The cured samples were studied for thermal stability, chemical (acid/alkali/solvent) and water absorption resistance and homogeneity of the cured systems. The tetradentate Schiff base, 3-[(Z)-2-piperazin-1-yl-ethylimino]-1,3-dihydro indol-2-one was synthesized by the condensation of Isatin (Indole-2, 3-dione) with 1-(2-aminoethyl)piperazine (AEP). Its complexes with Co(II), Ni(II) and Cu(II) have been synthesized and characterized by microanalysis, conductivity, Uv-Visible, FT-IR, TGA and magnetic susceptibility measurements. The spectral data revealed that the ligand acts as a neutral tetradentate Schiff base and coordinating through the azomethine nitrogen, two piperazine nitrogen atoms and carbonyl oxygen.

A New Adaptive Explicit Nonlinear Model Predictive Control Design for a Nonlinear MIMO System: An Application to Twin Rotor MIMO System

Lakshmi Dutta,Dushmanta Kumar Das 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.7

This paper proposed an adaptive explicit nonlinear model predictive control (AENMPC) technique using multiple estimation models with a convex combination framework [18] for a class of nonlinear MIMO systems. Here, the explicit solution for the control signal is obtained from an optimal performance index which can be formulated without online optimization. In this work, a closed-form control law is developed by approximating the tracking error in the receding horizon by its Taylor series expansion. The control performance of any modelbased control technologies explicitly depends on the quality of the unknown system parameters, hence an adaptive parameter estimator is used to estimate the system parameter online [16,17]. To ensure the boundedness of the estimated parameter within a predefined compact region, a projection based adaptive law is used [43]. Using an aerodynamic laboratory set-up, known as the twin-rotor multi-input multi-output system (TRMS), the effectiveness of the proposed control algorithm has been verified. The complete state information of the system to the proposed adaptive controller is given from an extended Kalman filter based state observer. The performance of the proposed adaptive control algorithm has been verified successfully in simulations as well as real-time experimental setup of the TRMS model and compared with an existing control approach.

The Prospects For Clean Coal Plant With Carbon Capture and Storage

Lakshmi Rathore 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.2

Carbon capture and storage (CCS) facilities coupled to clean coal plants provide a climate change and reducing the Co2 (carbon dioxide) emission .The application of Carbon Capture and Storage (CCS) in the generating electricity is important for reducing the cost electricity and consumer bills. This paper represents new ways to categorize the options for mitigation of cost and consumer bills and Co2 emissions. A detailed description on the ways to Carbon Capture and Storage in the coal fired plant, the power industry, capture, transport and store Co2 has been presented. The power penalties and cost can be big Challenges to apply CCS to the generating electricity while a lot of opportunities exist such as the development of the carbon trade market and industrial utilization of Co2. Carbon Capture and Storage (CCS) connected to clean coal power plants, plays an important role in reducing carbon emission and provide an environmental change. This paper represents a new ways for climate protection, environmental effects, environmental benefits, efficiency benefits, environmental effects and energy analyses in a carbon capture and storage. The power industry, capture, transport and store CO2 has already been presented in the field of carbon capture and storage in coal fired power plant.

Hybrid Artificial Immune System Approach for Profit Based Unit Commitment Problem

Lakshmi, K.,Vasantharathna, S. The Korean Institute of Electrical Engineers 2013 Journal of Electrical Engineering & Technology Vol.8 No.5

This paper presents a new approach with artificial immune system algorithm to solve the profit based unit commitment problem. The objective of this work is to find the optimal generation scheduling and to maximize the profit of generation companies (Gencos) when subjected to various constraints such as power balance, spinning reserve, minimum up/down time and ramp rate limits. The proposed hybrid method is developed through adaptive search which is inspired from artificial immune system and genetic algorithm to carry out profit maximization of generation companies. The effectiveness of the proposed approach has been tested for different Gencos consists of 3, 10 and 36 generating units and the results are compared with the existing methods.

Evaluation of Salivary Cortisol and Anxiety Levels in Myofascial Pain Dysfunction Syndrome

Lakshmi Kavitha Nadendla,Venkateswarlu Meduri,Geetha Paramkusam,Koteswara Rao Pachava 대한통증학회 2014 The Korean Journal of Pain Vol.27 No.1

Background: Myofascial pain dysfunction syndrome (MPDS), otherwise called myofascial pain is one of the most common temporomandibular disorders, which in turn is the most common cause of orofacial pain of non-dental origin. Its etiology is multifactorial and still poorly understood. Psychological factors have been shown to play a role in the etiology. The aim of the study was to evaluate the association between anxiety and salivary cortisol levels in patients with myofascial pain. Methods: Twenty patients suffering from myofascial pain were recruited as the study group. The same number of age and sex matched healthy individuals were taken as the control group. The salivary samples collected between 9−9:15 am from both groups were analyzed for cortisol levels with the competitive enzyme-linked immunosorbent assay method. Anxiety levels of 40 patients were measured using Hamilton’s anxiety scale. Results: The mean serum cortisol level of the MPDS group showed a highly significant difference (P < 0.001) from the controls. The mean anxiety scores of the MPDS group showed a highly significant difference (P < 0.001) from the controls. A positive correlation was found between anxiety and the salivary cortisol levels in MPDS patients. Conclusions: These findings suggest that anxiety plays a vital role in the etio-pathogenesis of MPDS; thus, besides pharmacological treatment, psychological support is also needed.

Facile design and spectroscopic characterization of novel bio-inspired Quercetin-conjugated tetrakis (dimethylsulfoxide)dichlororuthenium(II) complex for enhanced anticancer properties

Lakshmi, Buddolla Anantha,Bae, Jin-Young,An, Jeong Ho,Kim, Sanghyo Elsevier 2019 Inorganica chimica acta Vol.495 No.-

<P><B>Abstract</B></P> <P>A facile reflux approach was employed in the design of novel complexes using ruthenium(II) and quercetin for enhanced anticancer applications. The designed metal-based flavonoid complex was thoroughly characterized by employing powder XRD, <SUP>1</SUP>H, <SUP>13</SUP>C NMR, elemental analysis (C, H, N, S, O), FT-IR, XPS, and UV–Vis spectroscopy techniques. The cell toxicity and cell proliferation properties of the Quercetin-Ru(II) complex were investigated on the non-small cell lung cancer cell lines (A549) along with the lung normal cells (WI-38) and human dermal fibroblast (HDFa) cells. Significant cytotoxicity was observed with the newly designed complex on A549 cells at minimum concentrations of (10–30 µM). Interestingly, no remarkable cytotoxicity was observed in the WI-38 and HDFa cells. The same was confirmed by assessing cellular damage and nuclear damage via Atomic force microscopy (Bio-AFM) and Hoechst staining assay. Moreover, the results of intracellular reactive oxygen species (ROS) generation are also interesting to confirm the abilities of designed novel Quercetin-Ru(II) complex for anticancer applications.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Novel Quercetin-Ru(II) complexes were designed using facile reflux reaction. </LI> <LI> The Mechanism for the formation of Quercetin-Ru(II) complex was described. </LI> <LI> Cellular damage studies were evaluated using atomic force microscopy. </LI> <LI> Intracellular reactive oxygen species & nuclear damage studies were investigated. </LI> <LI> Cytotoxicity studies were studied in WI-38, HDFa and A549 cells, respectively. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>We designed novel Quercetin-conjugated Tetrakis (dimethylsulfoxide)dichlororuthenium(II) complex and characterized thoroughly via spectroscopic and optical techniques, which exhibited enhanced anti-cancer effects with induced ROS generation. The cellular and nuclear damage studies in A549 cells were studied by employing Atomic force microscopy (Bio-AFM) and Hoechst staining assay.</P> <P>[DISPLAY OMISSION]</P>