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The Impact of Geopolitical Risk on Financial Conditions of Emerging Economies
Namarta Kumari BAJAJ(Namarta Kumari BAJAJ ),Tariq AZIZ(Tariq AZIZ ),Sonia KUMARI(Sonia KUMARI ),Marim ALENEZI(Marim ALENEZI ),Naif Mansour MATHKUR(Naif Mansour MATHKUR ) 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.1
The detrimental impacts of financial instability on the world economy during the financial crisis highlighted the requirement to understand the existing financial circumstances. Stability and developments in financial conditions are important for economic prosperity. This study analyses the impact of geopolitical risk on the economic conditions of some specific emerging economies using monthly data from January 1999 to September 2016 by applying a fixed-effects panel data model. The estimation results demonstrated that geopolitical risk has a significant, negative impact on financial conditions. It shows geopolitical risk could be seen as a key factor that contributes towards financial conditions. Further, it implies that negative shocks of high geopolitical risk experienced by emerging economies are one of the primary reasons for the financial conditions’ deterioration. The findings provide important insights for governments, policymakers, and investors. For instance, governments and politicians should refrain from expressing or producing tension, economic discomfort, or news that is likely to increase a high geopolitical risk. Maintaining a close eye on geopolitical risk and its sources may also help to stabilize financial conditions and develop a well-functioning financial system. As a result, investors would be better informed about an economy’s economic and financial conditions, allowing them to diversify their international portfolios and devise investing strategies during uncertain economic times.
Kumari Neeta Shukla,Jyoti Kumari,Rama Shankar Pandey 한국우주과학회 2022 Journal of Astronomy and Space Sciences Vol.39 No.2
The elements that impact the dynamics and collaborations of waves and particles in the magnetosphere of planets have been considered here. Saturn’s internal magnetosphere is determined by substantiated instabilities and discovered to be an exceptional zone of wave activity. Interchanged instability is found to be one of the responsible events in view of temperature anisotropy and energization processes of magnetospheric species. The generated active ions alongside electrons that constitute the populations of highly magnetized planets like Saturn’s ring electron current are taken into consideration in the current framework. The previous and similar method of characteristics and the perturbed distribution function have been used to derive dispersion relation. In incorporating this investigation, the characteristics of electromagnetic ion cyclotron wave (EMIC) waves are determined by the composition of ions in plasmas through which the waves propagate. The effect of ring distribution illustrates non-monotonous description on growth rate (GR) depending upon plasma parameters picked out. Observations made by Cassini found appropriate for modern study, have been applied to the Kronian magnetosphere. Using Maxwellian ring distribution function of ions and detailed mathematical formulation, an expression for dispersion relation as well as GR and real frequency (RF) are evaluated. Analysis of plasma parameters shows that, proliferating EMIC waves are not developed much when propagation is parallelly aligned with magnetosphere as compared to waves propagating in oblique direction. GR for the oblique case, is influenced by temperature anisotropy as well as by alternating current (AC) frequency, whereas it is much affected only by AC frequency for parallel propagating waves.
Kumari Neeta Shukla,Jyoti Kumari,Rama Shankar Pandey 한국우주과학회 2023 Journal of Astronomy and Space Sciences Vol.40 No.2
Response to the Comment by Chandra S on “Interaction of Ion Cyclotron Electromagnetic Wave with Energetic Particles in the Existence of Alternating Electric (AC) Field Using Ring Distribution”
Puja Kumari,Chandrashekhar Azad,Ravi Ranjan Kumar,Jyoti Kumari,Kumar Aditya,Amarendra Kumar 한국식물병리학회 2023 Plant Pathology Journal Vol.39 No.2
Spot blotch disease of wheat caused by Bipolaris sorokiniana (Sacc.) Shoem is considered as an economically important disease which affects all the growing stages of wheat crop. Therefore, it is important to search some effective management strategies against the spot blotch pathogen. Some synthetic elicitor compounds (salicylic acid, isonicotinic acid, and chitosan) and nano-particles (silver and aluminum) were tested against the pathogen to observe the change in biochemical activity and defense action of wheat plant against spot blotch disease. All the tested elicitor compounds and nano-particles showed a significant increase in activity of peroxidase, polyphenol oxidase (PPO), and total phenol over control. The highest increase in activity of peroxidase was recorded at 72 h from chitosan at 2 mM and 96 h from silver nano-particle at 100 ppm. Maximum PPO and total phenol activity were recorded from chitosan at 2 mM and silver nano-particle at 100 ppm as compared to pathogen-treated and healthy control. The lowest percent disease index, lowest no. of spots/leaf, and no. of infected leaves/plant were found in silver nano-particle at 100 ppm and chitosan at 2 mM, respectively. The use of defense inducer compounds results in significantly up-regulated enzymatic activity and reduced spot blotch disease. Therefore, chitosan and silver nanoparticle could be used as alternative methods for the management of spot blotch disease.
Use of infinite elements in simulating liquefaction phenomenon using coupled approach
Kumari, Sunita,Sawant, V.A. Techno-Press 2013 Coupled systems mechanics Vol.2 No.4
Soils consist of an assemblage of particles with different sizes and shapes which form a skeleton whose voids are filled with water and air. Hence, soil behaviour must be analyzed by incorporating the effects of the transient flow of the pore-fluid through the voids, and therefore requires a two-phase continuum formulation for saturated porous media. The present paper presents briefly the Biot's basic theory of dynamics of saturated porous media with u-P formulation to determine the responses of pore fluid and soil skeleton during cyclic loading. Kelvin elements are attached to transmitting boundary. The Pastor-Zienkiewicz-Chan model has been used to describe the inelastic behavior of soils under isotropic cyclic loadings. Newmark-Beta method is employed to discretize the time domain. The response of fluid-saturated porous media which are subjected to time dependent loads has been simulated numerically to predict the liquefaction potential of a semi-infinite saturated sandy layer using finite-infinite elements. A settlement of 17.1 cm is observed at top surface. It is also noticed that liquefaction occurs at shallow depth. The mathematical advantage of the coupled finite element analysis is that the excess pore pressure and displacement can be evaluated simultaneously without using any empirical relationship.
A Hybrid Learning Model to Detect Morphed Images
Kumari, Noble,Mohapatra, AK International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.6
Image morphing methods make seamless transition changes in the image and mask the meaningful information attached to it. This can be detected by traditional machine learning algorithms and new emerging deep learning algorithms. In this research work, scope of different Hybrid learning approaches having combination of Deep learning and Machine learning are being analyzed with the public dataset CASIA V1.0, CASIA V2.0 and DVMM to find the most efficient algorithm. The simulated results with CNN (Convolution Neural Network), Hybrid approach of CNN along with SVM (Support Vector Machine) and Hybrid approach of CNN along with Random Forest algorithm produced 96.92 %, 95.98 and 99.18 % accuracy respectively with the CASIA V2.0 dataset having 9555 images. The accuracy pattern of applied algorithms changes with CASIA V1.0 data and DVMM data having 1721 and 1845 set of images presenting minimal accuracy with Hybrid approach of CNN and Random Forest algorithm. It is confirmed that the choice of best algorithm to find image forgery depends on input data type. This paper presents the combination of best suited algorithm to detect image morphing with different input datasets.
Kumari Anshu,Raheman Hifjur 한국농업기계학회 2023 바이오시스템공학 Vol.48 No.4
Purpose Improper selection of gear and throttle position during tillage operation affects soil pulverization and increases fuel consumption. The objective of this study was to carry out soil tillage with a tractor drawn rotavator by selecting optimum gear and throttle position by giving warning to the operator when wheel slip, velocity ratio (u/v), and load on the engine are not in the optimum range and advising the operator to control the tillage operation as well as load on the engine. Methods An embedded advisory system comprising sensors, microcontroller, and display units was developed. During tillage operation, data were obtained on wheel slip, u/v, throttle position, and engine speed through the developed sensing units, and they were compared with the optimum range of wheel slip, u/v, and engine speed using the embedded advisory system. Then the operator was warned and advised to adjust gear and throttle position so that the engine speed could be always maintained within governor control range as well as both wheel slip and u/v within the optimum range. The developed embedded advisory system was validated by comparing fuel consumption per hectare (FEI) incurred while carrying out tillage at depths 80 and 120 mm with different combinations of operating parameters (throttle and gear selection) and with operating parameters as advised by the advisory system. Results Results showed that wheel slip, u/v, and drop in engine speed were influenced by gear and throttle settings and depth of operation. It was also observed that there was a significant increase in fuel consumption with increase in depth of operation, throttle opening, and shifting of gear from L1 to L3. There was 12 to 85% increase in fuel consumption when carrying out tillage at different combinations of throttle setting and gears other than the advised operating parameters. Conclusions The FEI was found minimum for a selective combination of operating parameters at both depths of operation. The developed system could identify the combination of operating parameters at both the depths of operation at which wheel slip, u/v, and engine load were within the optimum range resulting in minimum FEI.
Kumari Sweeti,Tewari V. K.,Kumar Sanjeev,Sahni Ramesh K. 한국농업기계학회 2023 바이오시스템공학 Vol.48 No.4
Purpose An electromyography (EMG) study was conducted during push and pull operations to evaluate the muscle fatigue of agricultural farm workers. Methods Twelve medically fit agricultural workers were selected for evaluation of muscular activity during push–pull operations, with the help of a laboratory setup, which was developed based on the ergonomic criteria of the uniform force application. The most used muscle during push and pull operation (middle deltoid MD, triceps brachii TR, brachioradialis BR, and biceps brachii BI) was selected for an EMG study. The uniform force or load (50, 100, 150, and 200 N) was applied during the experiment. Results The most activated or used muscles during the pushing and pulling operation were TR and BR, respectively. The activity of the middle deltoid and triceps brachii muscles was more during the pushing than the pulling task. Conclusion Root mean square (RMS) values for EMG activity were found to increase with increasing load in all the selected muscles, indicating that muscular loads were affected by the external load. A load of 200 N was found difficult to operate compared to other selected loads for push–pull operation for all the subjects. The TR muscle gets more fatigued during pushing because it is responsible for elbow extension, which is a primary movement in pushing. The BR muscle gets more fatigued because it is more activated during pull force application.
Kumari, Tanya,Moon, Mijin,Kang, So-Huei,Yang, Changduk Elsevier 2016 Nano energy Vol.24 No.-
<P><B>Abstract</B></P> <P>In order to address the question of how macromolecular additive processing in recent years, sparsely used, affects structural organization and photovoltaic performance, various macromolecular additives (PS, PDMS, and PMMA) vis-à-vis small DIO additive are applied to a model bulk-heterojunction (BHJ) system based on DTGe(FBTTh<SUB>2</SUB>)<SUB>2</SUB>. These additives have been shown to exhibit a strong influence on film morphology as a function of additives type, with significant changes in packing orientation, film roughness, and feature size observed, leading to improved power-conversion efficiency (PCE). Interestingly, an unexpectedly large increase in PCEs, from 6.03% to 7.07%, is demonstrated upon adding 1% (w/w) PMMA to DTGe(FBTTh<SUB>2</SUB>)<SUB>2</SUB>:PC<SUB>61</SUB>BM devices, possessing an even greater PCE than DIO. In addition, when 0.2% (v/v) DIO is added to DTGe(FBTTh<SUB>2</SUB>)<SUB>2</SUB>:PC<SUB>71</SUB>BM, several key device metrics increase, producing the highest PCE of 7.55% for DTGe(FBTTh<SUB>2</SUB>)<SUB>2</SUB>-based devices to date. In the present work, PMMA is confirmed to provide a highly effective means for controlling morphology and significantly enhancing PCEs. Not only do the results from this study will aid in understanding the mechanisms underlying the impact of macromolecular additive processing, but they will also be key in leading to future studies that will elucidate the driving forces behind and exact points of interaction of macromolecular additives.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The effects of various macromolecular additives on OPV performance are investigated. </LI> <LI> Introducing PMMA in DTGe(FBTTh2)2:PC61BM can bring 17% improvement in the efficiency. </LI> <LI> The efficiency up to 7.55% in DIO-treated DTGe(FBTTh2)2:PC71BM films is achieved. </LI> <LI> Our study aids in understanding the mechanisms of the macromolecular additives. </LI> <LI> PMMA utility should be applicable to various other organic solar systems. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>