bluuebunny/crossref_metadata_2025 huggingface dataset:
EFEKTIFITAS TINGKAT KEPATUHAN PEKERJA PADA PROTOKOL KESEHATAN TERHADAP PELUANG TERJANGKIT PENULARAN COVID-19 DI PT. BATA KUO SHIN KARAWANG TAHUN 2022
Authors: Mohammad Wachidin N S  , Sudiono  , Saleh Budi S
Published: December 2023

Pandemi COVID-19 telah berdampak luas pada masyarakat. Dunia usaha dan masyakat pekerja memiliki kontribusi besar dalam memutus mata rantai penularan dengan mematuhi protokol kesehatan di tempat kerja yang telah ditetapkan pemerintah. Kepatuhan terwujud dari perilaku seseorang yang terbentuk dari pengetahuan, sikap, kepercayaan, adanya fasilitas, pengawasan, dukungan dari teman atau keluarga. Seseorang yang memilki tingkat kepatuhan yang baik maka dapat meminimalisir terjadinya penularan COVID-19. Tujuan dari penelitian ini adalah mengetahui hubungan efektifitas tingkat kepatuhan pekerja pada protokol kesehatan terhadap peluang terjangkit penularan COVID – 19 di PT. Bata Kuo Shin Karawang tahun 2022. Penelitian ini menggunakan penelitian kuantitatif dengan metode asosiatif kuantitatif jenis korelasional. Sampel di dalam penelitian ini merupakan pekerja di PT. Bata Kuo Shin Karawang. Sampel ditentukan dengan menggunakan Rumus Slovin, didapatkan sample sebanyak 109 responden. Metode pengumpulan data menggunakan kuesioner yang disebar dengan link google form. Analisis penelitian ini menggunakan Analisis Chi Square, analisis ini merupakan analisa yang digunakan terhadap dua variabel yang diduga berhubungan atau korelasi. Hasil uji statistik diperoleh nilai P – Value ­= 0,000 < α = 0,05 maka dapat disimpulkan bahwa Ho ditolak atau Ha diterima. Jadi, terdapat hubungan yang signifikan antara tingkat kepatuhan pekerja pada protokol kesehatan terhadap peluang terjangkit penularan COVID-19 di PT. Bata Kuo Shin Karawang Tahun 2022.
ANALISIS FAKTOR – FAKTOR YANG BERHUBUNGAN DENGAN KELUHAN MUSKULOSKELETAL DISORDERS PADA PEGAWAI PABRIK PT KWZ INDONESIA
Authors: Lenia Vira Eka Putriani  , Rina Puspita Sari  , AYG Wibisono
Published: December 2023

Muskuloskeletal Disorders merupakan suatu cedera atau nyeri yang sering dikeluhkan oleh pegawai pada saat bekerja yang dipengaruhi oleh beberapa faktor, sehingga penelitian ini bertujuan untuk mengetahui faktor – faktor apa sajakah yang berhubungan dengan keluhan muskuloskeletal disorders pada pegawai di unit interlining. Penelitian ini menggunakan pendekatan kuantitatif dengan desain analisis korelasional. Pengambilan sampel dilakukan dengan teknik total sampling yang melibatkan 105 pegawai di unit interlining. Uji yang digunakan ialah menggunakan uji rank spearman dengan derajat kepercayaan 95%. Hasil penelitian ini menunjukkan bahwa terdapat hubungan antara usia, masa kerja serta postur kerja terhadap keluhan muskuloskeletal disorders dengan nilai Sig.(2-tailed) = 0,000 sedangkan, untuk IMT tidak terdapat hubungan terhadap keluhan muskuloskeletal disorders dengan nilai Sig.(2-tailed) = 0,316. Kesimpulan penelitian ini ialah didapatkan hubungan antara faktor usia, IMT serta masa kerja dengan keluhan muskuloskeletal disorders pada pegawai unit interlining, sehingga disarankan kepada pengelola pabrik maupun pegawai unit interlining untuk menerapkan rotasi pekerjaan, melakukan kombinasi terkait postur kerja serta menerapkan program Workplace Stretching Exercise yang dapat dilakukan selama 10 menit setiap hari sebelum bekerja maupun setelah beristirahat.
Socialinė politika ir gyvenimo eiga: gyvenimo eigos politikos analizės schemos pritaikymas Lietuvai
Authors: Navickė Jekaterina
Published: December 2023

Socialinė politika vaidina svarbų vaidmenį formuojant žmonių gyvenimus. Siekiame išsiaiškinti, kaip posovietinė pertvarka socialinės politikos srityje keičia šiuolaikinėje Lietuvoje gyvenančių žmonių gyvenimo eigą. Siekiant šio tikslo, straipsnyje naudojama L. Leiseringo ir R. Walkerio (1998) pasiūlyta „gyvenimo eigos politikos“ analizės schema. Analizė rodo, kad Lietuva iš savo autoritarinės praeities paveldėjo stiprius gyvenimo eigos struktūravimo, integracijos ir normų formavimo mechanizmus. Vis dėlto šie mechanizmai silpsta arba yra adaptuojami prie šiuolaikinio socialinio, ekonominio ir politinio konteksto. Dėl to šiuolaikinę Lietuvą galima priskirti pofordistiniam gyvenimo eigos režimui, kuris pasižymi gyvenimo eigos destandartizacija, depolitizacija ir didesniu socialinės politikos institucijų lankstumu. Perėjimas prie šio gyvenimo eigos režimo mūsų šalyje įvyko vėliau, palyginti su kitomis Vakarų Europos šalimis. Dabartinį gyvenimo eigos politikos režimą Lietuvoje taip pat galima apibūdinti kaip silpnai integruotą „segmentuoto saugumo“ modelį, kuriam būdingas atotrūkis tarp tų, kurie dalyvauja socialinio draudimo sistemoje, ir tų, kurie yra už jos ribų.
Possible Unilateral Iris Melanoma in a Cat
Authors: KILIÇ Sevdet , BAŞAK Mahsum , AKGÜL Mustafa Barış , AKGÜL Gülşah
Published: December 2023

A tumor known as feline iris melanoma has a high chance of metastasizing and is characterized by multifocal, golden yellow to brown pigmented patches in the iris. Despite the fact that cats of any age can develop this tumor, there is no breed or sex-specific susceptibility. The case material was a female Russian blue cat that was neutered at the age of 5, weighed 4.5 kg, and was taken to the surgical clinic of the faculty of veterinary medicine at the University of Siirt. According to the patient's medical history, a brown spot-like pigmented region had developed on the right eye's iris two months prior, and up until the cat was brought to the clinic, the pigmented patches in the iris grew in number and size. As a result of routine clinical examination, tonometry, haematological and biochemical examinations, uveal cysts and iris freckles with similar clinical symptoms were eliminated and it was concluded that the pathological condition was iris melanoma. In addition, it was determined that melanoma foci were involved only on the iris surface in line with the available possibilities and did not metastasise to other tissues and organs of the eye. Since the disease was in the initial stage, the general condition of the patient was good after clinical examinations and the owner of the patient did not accept enucleation, it was decided not to perform any intervention. The owner of the patient was instructed that during the follow-up phase, the foci should be checked and the patient should continue to be under supervision. When the patient was summoned back for a follow-up examination three months later, it was decided to undertake enucleation in case any potential melanoma foci or metastases had grown in other eye tissues or organs.
Designing a Website-Based Analytical Hierarchy Process (AHP) in Decision Support Systems (DSS) for Parental Control of Children's Media
Authors: Wirda Fitriani  , Dedi Purwanto  , Ananda Chairani
Published: December 2023

The massive amount of children's television programming poses a challenge for parents seeking to mediate suitable viewing habits. This research puts forward a website-based Decision Support System (DSS) leveraging Analytic Hierarchy Process to recommend appropriate shows per personalized criteria. The DSS allows parents to set priorities across factors like educational value, empathy, and social norms reflected in shows. Quantitative AHP methodology ranks options by synthesizing comparative judgments. A prototype is implemented on PHP/MySQL with an intuitive interface explaining decision logic. Testing with parent focus groups indicates significantly increased perceived utility over traditional controls. Recommendation accuracy metrics averaged 0.81 against test cases. Outcomes demonstrate feasibility and benefits of applying multi-criteria DSS techniques to aid value-based media selection for impressionable minds. The system aims to aid busy caregivers overwhelmed by the exponential growth in media choices, promoting discerning consumption. Further enhancements incorporating explanatory facilities and predictive analytics promises wider applicability inside content distribution ecosystems. This research highlights the importance of DSS-AHP integration for child development in the modern information age.
SuperHyperFunction, SuperHyperStructure, Neutrosophic SuperHyperFunction and Neutrosophic SuperHyperStructure: Current understanding and future directions
Authors: Smarandache Florentin
Published: December 2023

The n-th PowerSet of a Set {or Pn(S)} better describes our real world, because a system S (which may be a company, institution, association, country, society, set of objects/plants/animals/beings, set of concepts/ideas/propositions, etc.) is formed by sub-systems, which in their turn by sub-sub-systems, and so on. We prove that the SuperHyperFunction is a generalization of classical Function, SuperFunction, and HyperFunction. And the SuperHyperAlgebra, SuperHyperGraph are part of the SuperHyperStructure. Almost all structures in our real world are Neutrosophic SuperHyperStructures since they have indeterminate/incomplete/uncertain/conflicting data.
CRISPR-engineered microalgae: a promising approach for the production of therapeutic proteins
Authors: Patra Debtosh
Published: December 2023

Clustered regularly interspaced short palindromic repeats (CRISPR) has emerged as a transformative tool in biotechnology, providing precision in DNA modification through guide RNA (gRNA)-directed Cas9 nuclease. It surpasses previous genome editing techniques due to its simplicity in gRNA design and the ability to target multiple genes concurrently. This review explores the profound impact of CRISPR on research and clinical applications, particularly in the field of therapeutic protein production. Currently, therapeutic protein production relies on complex mammalian cell culture systems, burdened by limitations and contamination risks. In this context, microalgae provide a promising alternative. These unicellular organisms possess exceptional growth rates, enabling rapid and high-volume production of valuable products while thriving in diverse aquatic environments. They utilize renewable resources like sunlight and carbon dioxide, aligning with eco-friendly production principles. Microalgae's capacity to yield substantial quantities of proteins, lipids, and carbohydrates makes them an economically attractive and ecologically responsible platform for various industries. This review presents a comprehensive overview of recent advancements and challenges in CRISPR-engineered microalgae for therapeutic protein production. It discusses the advantages and drawbacks of various microalgal species, CRISPR tools, and delivery methods, as well as protein expression. Furthermore, it highlights the potential applications and advantages of microalgal biopharmaceuticals and offers insights into future directions to enhance the efficiency, safety, and scalability of CRISPR-based microalgal biotechnology.
Advances and challenges in zebrafish models of T-cell acute lymphoblastic leukemia
Authors: Mohapatra Sikha
Published: December 2023

T-cell acute lymphoblastic leukemia (T-ALL) presents a significant challenge in oncology, necessitating innovative research approaches for improved comprehension and therapeutic advancements. In recent years, zebrafish (Danio rerio) have emerged as a vital model organism in T-ALL research, conferring distinctive advantages over conventional models. Zebrafish, sharing substantial genetic homology with humans, accurately replicate key phenotypic and molecular features of human T-ALL, including clonal expansion, aneuploidy, organ infiltration, and gene expression profiles. They also develop chromosomal translocations similar to those in human T-ALL. This comprehensive review explores the diverse zebrafish T-ALL models, encompassing genetic alterations and inducible systems that facilitate the investigation of disease initiation, progression, and response to therapy. These models have revealed critical insights into the roles of specific genes and the identification of novel oncogenic drivers. Moreover, zebrafish models enable high-throughput drug screening, providing an expedited path toward discovering potential therapeutics. However, while zebrafish models present exceptional advantages, they are not without challenges, including genetic differences, biological disparities, and technical complexities. To exploit the potential of zebrafish in T-ALL research, ongoing efforts are directed toward CRISPR/Cas9 gene editing, improved antibody development, and enhanced experimental techniques.
El sueño en los niños
Authors: Garaycochea V.
Published: December 2023

El sueño es una actividad cerebral y corporal muy dinámica, en el que llevan a cabo procesos vitales del sistema inmune y endocrinológico, pero además actividades relacionadas con procesos mentales. La arquitectura del sueño varía desde un estado pre-sueño en la etapa fetal temprana, al sueño del lactante e infante y alcanzar la arquitectura del sueño adulto hacia los tres años de edad. Se reconoce las fases del sueño denominadas sueño REM y No REM, cuya alternancia en ciclos repetidos en la noche constituye el llamado ritmo ultradiano. La duración y cualidades de estas fases varían en relación con la maduración del Sistema Nervioso Central (SNC), crítica durante los primeros tres años de vida. La regulación del sueño depende del ritmo circadiano (dia-noche), y los procesos homeostáticos que se generan en la vigilia, por la acumulación hipotética de ciertas sustancias que llevan al sueño y son depletadas al dormir. Las alteraciones del sueño, tanto en cantidad (deprivación) como en calidad (alteración de la arquitectura), que se producen en épocas tempranas de la vida pueden tener importantes repercusiones en el desarrollo del Sistema Nervioso, en especial en lo concerniente al desarrollo neurosensorial (desorganización de sistemas visual y auditivo), en los procesos de aprendizaje, memoria y la preservación de la plasticidad neuronal.
Prof Roddam Narasimha the Gifted Guru
Authors: SM Deshpande
Published: December 2023

no abstract
Development of Low Emission Combustion Technologies For Modern Aero Gas Turbine Engines: An Overview
Authors: R. K. Mishra
Published: December 2023

The demand for gas turbines for civil aviation is increasing continuously as the air transportation system is changing exponentially. Large fleet of commercial aircraft and large and long-haul flight have raised the demand on high thrust engines. Therefore, focus on fuel efficiency of the engines and control on exhaust gas emissions are increasing keeping in mind the economy and environmental considerations. International Civil Aviation Organization has promulgated the emission levels for civil subsonic turbojet and turbofan engines and making it more and more stringent day by day. This paper overviews various combustor technologies which have been developed over previous decades and are under development currently for present and future aircraft to meet the low emission goals.
Aircraft Parameter Estimation Using Gaussian Sum Filter With Lyapunov Stability Analysis
Authors: Sara Mohan George  , S. S. Selvi  , J. R. Raol
Published: December 2023

The use of Gaussian Sum Filter (GSF) as a state/parameter estimation tool for aerodynamic modelling is relatively unexplored in the literature. In this paper GSF has been employed for aircraft parameter estimation. The stability analysis of GSF has also been discussed using the normalized Lyapunov energy functional and the conditions for the convergence of the GSF are derived by using the proposed nonlinear observer which is a novel approach. An approach to prune the weights of GSF based on Pearson coefficient is considered. The performances of the three recursive parameter estimation algorithms: Extended Kalman Filter (EKF), the simplified version of the GSF and the improved version of the GSF are evaluated for aircraft parameter estimation using simulated flight data in the MATLAB implementations. The numerical results show that pruning the weights reduces the computational load by nearly 75%, and still provides good performance compared to the conventional GSF.
Precise Absolute Velocity Estimation of Human Space Flight In Leo Using Navic Doppler Shift Measurements
Authors: Vinod Kumar  , Monica Saraswathi Dantuluri  , Ishita Ganjoo
Published: December 2023

The Low Earth Orbit (LEO) is the most significant for diverse applications like imaging, human space flight and scientific observations; the number of satellites in LEO is ever increasing. To estimate the Position and Velocity (PV) conventionally multiple ranging sessions are conducted. It increases burden on the ground support staff and computation delays are introduced. These delays will lead to inaccurate estimation errors. Additionally, propagation errors are introduced into the PV estimation. Also, for human space flight applications, safety is of utmost importance, and hence precise and instantaneous determination of orbital parameters is crucial. This makes autonomous determination of the position and velocity of the satellite a necessity on board. In this study, it is proposed to use indigenously developed NavIC (Navigation by Indian Constellation) by Indian Space Research Organization Doppler shift measurements, for precise kinematic estimation of absolute velocity and receiver’s clock bias rate of the human space flight. The novelty of this research work is the usage of the NavIC Doppler shift measurements, for precise kinematic absolute velocity and receiver clock bias rate estimation, for the orbit of the human space flight in LEO, for the first time. This will extend the footprints of indigenously developed navigation technology to space applications. Extensive simulation and analysis is performed to study the Doppler collision at LEO. Thus establishing the suitability of the method, as the LEO will not exhibit Doppler collision unlike on ground. The mean value and Standard Deviation (SD) values of the velocity estimation error are [-0.0027 -0.0001 -0.0045] m/s and [0.1191 0.3550 0.1319] m/s respectively for the best case. The mean and 3-σ standard deviation of clock bias rate estimation error are 0.00075 m/s and 0.6 m/s respectively when the number of visible satellites is six. Additionally, simulations are carried out for a highly inclined sun synchronous orbit; with nominal and 50% higher standard deviation receiver noise, in Doppler measurements. The performance of velocity and clock bias rate estimation error is consistent for different orbits. However, the performance degrades with higher receiver noise.
Numerical Studies on Flexural Behaviour of Graded Multi-Layer Puf Cored Sandwich Panels
Authors: M.A. Mohamed Aqhil Ahmed  , G.S. Prabhunandan  , Ramesh S. Sharma  , N.V. Nanjundaradhya
Published: December 2023

The present numerical investigation was mainly concerned with the evaluation of flexural properties of graded multi-layered polyurethane foam cored (MLCC) sandwich panels using a novel approach through the medium of general purpose program i.e. FEM/ANSYS. Aiming to the goal, three-point bending analysis was performed on sandwich beam models assumed to be made up of composite face sheets (GFRP) and graded multi-layer polyurethane foam cores of different layer densities. Finite element models of sandwich beams were obtained successfully using nonlinear shell 91 elements for face sheets (orthotropic material) and 8-noded shell 98 elements for core (isotropic material).Various multi-layer core configurations in a stack of three layered core were studied with great care. Prior to actual task, the proposed evaluation technique was verified using bench marks. Series of multi-layered cored beam models of different core configurations and span length were analysed in order to study the influence of different graded (density) layer configuration on flexural properties. The present studies reveals that use of MLCC panels for sandwich construction can provide improved flexural properties and hence these panels could be the better choice for structures under non uniform bending and shear loads due to their higher shear stiffness values compared to soft PUF cored panels. Furthermore the MLCC-2 panels in which layers arranged in order of higher to lower density between compression face and tension face stand better among all the possible core configurations.
Cfd Simulations of Store Separation: An Indian Perspective
Authors: Debasis Chakraborty
Published: December 2023

CFD analysis played a very major role in predicting the safe separation of many stores including missiles, guided bombs, drop tanks from various airborne platforms namely, fighter aircraft, helicopters etc. Number of indigenous CFD based stores separation suites are developed by coupling flow solvers, 6 Degrees-of-freedom (6DOF) trajectory programs and efficient pre and post processors. These packages were validated against reliable experimental results and were applied to many practical applications. These analyses gave very good confidence to the designers, test pilots and certifying agencies to clear the flight trials without much wind tunnel testing. This paper highlights the author’s experience of use of CFD techniques to predict external store separation from fighter aircraft pertaining to Indian system.
Indigenous Development of Titanium Compressor Blade For Turbofan Engine
Authors: Sanjeev Khatarkar  , D. Jaganmohan Rao  , S. K. Jha
Published: December 2023

The Indigenous development of titanium compressor blade was taken up for turbofan engine for aeronautical applications. This titanium compressor blade is classified as flight safety critical part due to its rotating nature in dynamic load conditions. This blade is made from precision forging in titanium material with strength class of 880-1130 MPa. The material produced in accordance with this specification is melted by the triple VAR process or the cold hearth plus VAR process. The material specification calls for compliance on requirements on a forging lot/heat-treat lot/ingot for metallurgical defects like High Interstitial Defects (HID) "Type I" alpha defects, High-Density Inclusions (HDI), High-alpha defects ("Type II" alpha defect), Beta flecks, Clean shrinkage porosity and Strain-induced porosity. The forging required for compressor blade was developed as per approved test schedule, machined for finished dimensions and assembled and type tested in turbofan engine for its qualification. The titanium compressor blade was cleared for production after successfully completing stipulated qualification requirements. This paper covers the approach toward indigenous development of aero-engine titanium compressor blade forging, machining, assembly and its qualification testing in details
Design of a New Multi-Variant Solar Panel Deployment System (Mvspds)
Authors: Souradeep Hazra
Published: December 2023

Multi-Variant Solar Panel Deployment System (MVSPDS) is defined as the satellite deployment System which can change its orientation according to the power supply required for the satellite or power supply source available to the satellite. To deploy the solar panels completely, it is necessary to design the deployment mechanism which has high precision and reliability. So, this method of deployment will not only provide the said benefit but also it will allow a wide range of application. Consequently, the analysis on the dynamic characteristic of the deployment mechanism must be done at an initial design stage. The design effectiveness and structural safety of the proposed solar panel module were validated by launch vibration and in-orbit environment tests at the qualification level. In this paper, the complete design of a new Multi-Variant Solar Panel Deployment System in a Satellite is proposed completely by me, where the author have inculcated various deployment methods and proposed a new method of satellite deployment. The complete design is done in the Autodesk 360 software (Educational license) where the design and animation method are extensively used to make this possible. It will be clearly depicted from the design that the structure is very compact during the process of orbit insertion. Yet when it come into working it definitely works according to the power need of the satellite. For an example when the satellite needs less amount of power it will transform itself in such a way that the amount of power generation will be less on the other hand when the satellite needs more power than the Solar Panel will change itself in such a way that it will have the maximum surface area as a result of which the power generation will be maximum. Moreover, the variety which provides is really unique as it also has the power to change its solar panel into different structure for an example it can change itself into a circle like structure it can change itself in the canister to form another structure and moreover it will work completely according to the need if programmed properly for space flight mission. And hence can give rise to a wide variety of different deployment methods.
Numerical Analysis and Design Optimization Of Bluff Body Using Spike
Authors: Pranesh Kumar S. R  , Suyog Jagannath Salve  , Venketa Krishnan A.V  , Vishnu Vardhan Reddy  , Vrishin S.L
Published: December 2023

The drag force caused on the re-entry vehicle and for missile, cursing at supersonic speed will result in Aerodynamic heating of the body. To minimize the aerodynamic heating and drag, designing of bluff body is an important aspect. This paper deals with the design optimization of bluff body using spike. Computational studies have been made in ANSYS FLUENT to obtain the effect of spike shape and length over a bluff body at supersonic Mach number of 2 at zero angle of attack. In this paper numerical analysis on conical bluff body integrated with different spike configurations were carried out using ANSYS software packages. Computations have been made on three spike configurations i.e., sharp, blunt and aerospike of different lengths. Larger the recirculation zone, reduces coefficient of drag. It has been observed that with an increase in spike length the pressure fluctuations increase and with the change in shape to blunt spike and sharp spike the fluctuations decrease.
Investigation on Failure Modes and Joining Of Aircraft Composite Structures
Authors: Vaggar M. R. , P. Shetty Balachandra , Reddy Sudheer , Acharya Madhusudhan
Published: December 2023

Composite materials are widely used in diverse applications, and extensive research have been performed to enhancethe understanding of the mechanical behavior of joined composite materials. It is mainly to develop design procedures for taking maximum advantage of their properties. Here in these joints the load is transferred between the disjointed components across the bonding surfaces of the joint. Composite joints have special characteristics which complicates its failure investigation. Through systematic scientific investigation, it is possible to recognize that the strength of the adhesively bonded joint is higher than that of the mechanically fastened joint. This paper presents investigations on joints and bonded materials in failure modes of joining of aircraft composite structures.
Distribution of Enthalpy in Rotating Detonation Engine
Authors: Ramanujachari V. , Amrutha Preethi P
Published: December 2023

In Rotating Detonation Engine (RDE), the detonation wave rotates inside the annulus of thecombustor. After initiation by a pre-detonator, this detonation wave can be sustained by thecontinuous supply of fuel and oxidiser. The frequency of rotation is reported to be of the orderof 5-10 KHz indicating a near continuous operation which can be used in rocket andairbreathing propulsion systems. An experimental study on the RDE is being carried out atNational Centre for Combustion Research and Development (NCCRD), Indian Institute ofTechnology (IIT), Madras using hydrogen and air system. In addition,N2H4 - N2O4 hypergolicsystemreported in literature is considered for comparative study. In order to understand thevarious processes undergone by the flow through the RDE, a detailed thermodynamic analysisis performed. The procedure is explained in greater detail for the better understanding of thevarious state properties in the entire flow field. The flow field comprises of detonation wave,trailing oblique shock wave and Prandtl- Mayer expansion waves. There are two slip lines,one separating the fresh reactants and inert combustion products of the previous cycle ofdetonation wave propagation and another separating the products of detonation combustionand the shocked inert products. Though all the state properties will be evaluated, the enthalpydistribution is considered in the entire flow field of RDE and discussed. This provides theknowledge of the energy availability in various flow regimes and the extent of energyconversion due to detonative combustion, flow expansion, shock compression, and axial flowexciting through the combustor outlet. Propulsion parameters such as axial specific thrust andspecific impulse are computed to show the capability of this modelling approach.
On Improving the Loss Factors of Aerospace Structures Having Constrained Layer Damping Treatment
Authors: K. Joseph Thomas , Renji K. , Venkatraman Kartik
Published: December 2023

The loss factor of a structure can be significantly improved through constrained damping treatment using viscoelastic layer. Even after introducing the constrained damping layer, the effective loss factor achieved is seen to be far less than the loss factor of the basic viscoelastic material. Methods to improve the loss factor of the aerospace structures further are of great practical importance. In this work, two methods are investigated, one is extending the damping treatment to the boundaries and the other is related to the use of stand-offs for the viscoelastic layers. It is shown through experiments and numerical simulation that significant increase in the loss factor can be achieved by extending the damping treatment into the interfaces, especially in the second bending mode of vibration. Stand-offs having good extensional modulus can improve the loss factor of the bending modes further, though its shear modulus does not play any significant role.
Estimation of Response of Composite Shells to Acoustic Excitation Using Sea and Its Experimental Verification
Authors: Josephine Kelvina Florence S. , Renji K.
Published: December 2023

Shells made up of composite material are extensively used in aerospace structures as they offer excellent specific strength and stiffness properties over their metallic counterparts. These elements experience high frequency and high intensity acoustic loads during the launch. Response behaviour of structures in the high frequency region is analyzed in a Statistical Energy Analysis (SEA) framework. Though the methodology of estimating the response using SEA exists, its applications to composite cylindrical shells and how they compare with experimental results are seldom reported. Present work fills this gap. Acceleration and strain responses of a typical composite sandwich cylinder under diffused acoustic field are estimated in SEA framework. Modal densities and coupling loss factors are estimated using expressions. The dissipation loss factors are determined experimentally. Same cylinder is subjected to diffused acoustic field in reverberation chamber and the accelerations and strains are measured. The work presents how much the theoretically estimated responses compare with the experimentally obtained results. It is seen that the acceleration responses compare reasonably well, but needs improvement. The strain-velocity relations compare very well. Acceleration and strain bounds such that 99 % of all measurements are within are also predicted which could be used in the structural design.
Cfd Simulation of Wind Tunnel Test of Stage Separation For a Typical Launch Vehicle
Authors: Kumar Mayank , R. Justus Jiju , Kumar Vinod , Patil  M.M.
Published: December 2023

A study has been carried out to understand the flow-field around a separating spent stage during first stage separation of a typical launch vehicle. A CFD simulation has been performed to characterize the flow behavior and the axial force acting on the separating stage. Results from CFD simulations are compared with the wind tunnel experiments, which show good accordance in terms of flow features and separating force acting on the spent stage.
Design and Analysis of Wing Tip Twist on a Forward Swept Wing Using Prandtl-d Wing Concept
Authors: Puthisikamani K. , Sreenivasaraja N. , Balasundaram S. , Arun S. R.
Published: December 2023

Our project is all about the implementation of a wing tip twist for Prandtl-D wing to a Forward swept wing. The innovative idea is that the Prandtl-D wing is used only for a glider till date whereas, we implied this concept for a commercial aircraft. The phenomena of twisting the tip of the wing leads to the change in geometry which results in drag reduction and increase in lift to drag ratio. With the help of a reference project, a wing geometry is chosen and the model is scaled down according to our test section. By using CATIA V5 R20, our model is drawn and analyzed with the help of ANSYS Fluent 16.0. The geometry with the best result is 3-D printed and tested in the low speed subsonic wind tunnel. Both the analytical and experimental results are validated. In general, the forward swept wing aircraft possess good aerodynamic performance in subsonic range. We look into that whether our project increases the efficiency or not.
FRP Radome: A Short Review
Authors: Mankodi Hireni , Parmar Shiza
Published: December 2023

The Radome is an expression derived from radar and dome. It is a cover or enclosure to defend radar antennas from environmental influences. The Radome must be capable to face up to various outside loads and conditions and is to be transparent to the Electro-Magnetic Waves. Essentially, the geometry and material selection of the radome is dictated by the Electromagnetic design and performance. Since the overall performance of a radome relies upon the materials used, the materials play a vital role in the design of the radome. Composites are gaining wider acceptance for use as Radome due to the number of advantages like high strength to weight ratio, ability to be molded into complex shapes, and better Electromagnetic performance. Modern radomes are manufactured using composite materials using textile fibers held together with polymer matrix. Using a hybrid system of fiber reinforcement offers the opportunity to optimize the Fiber Reinforced Polymer composite system based on mechanical, electrical, and cost criteria of the radome.
Development of Fault Tolerant Flight Control System For Handling Actuator Stuck Faults
Authors: K. Nagarathna , Deodhare Girish S.
Published: December 2023

This paper presents the PID based fault tolerant controller for controlling the aircraft in normal flight conditions and actuator stuck failure condition. It has been demonstrated that the PID controller is capable to control the aircraft under LSTAB and RSTAB stuck failure conditions. Also, the robustness of the controller is demonstrated by analyzing the performance of the model under variation of the operating point of the model in the neighborhood of the trim point.
ОПЕРАТИВНОЕ РЕАГИРОВАНИЕ ПРИ УГРОЗЕ АВАРИИ НА ПЛОТИНАХ
Authors: Khodnkaryan Valeri
Published: December 2023

Operational response is defined as the initial period of action during a developing or ongoing dam safety emergency. An effective emergency plan for dam emergencies with a high potential hazard is a key document for preventing (reducing) loss of life and property damage. Because of changing downstream conditions, dam safety should be an ongoing process. Plans should be reviewed and updated regularly. The purpose of this article is to update the most important aspects of dam safety and emergency response plans.
ՏԱՐԱԲՆԱԿԵՑՄԱՆ ԱԶԳԱՅԻՆ ՔԱՂԱՔԱԿԱՆՈՒԹՅԱՆ ՀԻՄՆԱԿԱՆ ՈՒՂՂՈՒԹՅՈՒՆՆԵՐԸ
Authors: Manasyan Maksim , Manasyan Hayk
Published: December 2023

The article presents the main features and trends of the modern settlement of the RA, as well as the existing problems, the principles and directions of the scientifically based resettlement policy for their solution and the mechanisms for their implementation. The article substantates that in the present times,during the regulation of population settlement, ensuring the safety of the border settlements and strengthening the territorial integrity of RA is of great importance. The article highlights those factors and conditions that determine the new directions of ekistic policy. On their basis, six alternative strategies and ways of their implementation are proposed.
THE USE OF STAPHYLOCOCCAL BACTERIOPHAGE IN THE TREATMENT OF RINOSINUSIT PATIENTS WITH CEREBRAL PALSY
Authors: Talibova J.Kh. , Novruzova M.S.
Published: December 2023

The aim of the study was to study and evaluate the therapeutic, immunological effect of the drug. Staphylococcal bacteriophage ("Dysbacteria, Microgen, Russia") is an immunological drug that causes an increase in the body's resistance to infection caused by S. aureus. Patients aged 2-6 years were 8, from 6-9- there were 8, from 9-12- there were 6, from 12-15 years old there were 8. Patients received staphylococcal bacteriophage in the form of aerosol using an inhalation apparatus for 15 days. Given the complexity of treatment of rinosinusit in patients with cerebral palsy staphylococcal bacteriophage have been used. Therapeutic effects of staphyllococcal bacteriophage have been studied, microbiological research have been conducted. It was revaled that the use of staphylococcal phage leads to normalization of general and local immunity in patiens with cerebral palsy.
Does Political Stability Matter for Foreign Direct Investment in Eurasian countries? Examining the Role of the Business Environment and Macroeconomic Variables
Authors: Sadia Jabeen
Published: December 2023

In recent years, developing countries have placed a strong emphasis on attracting foreign direct investment (FDI), which is ostensibly regarded as the most important external resource for increasing industrial activity and real income growth. Indeed, the subsequent benefits of FDI, one of which is increased economic growth in developing countries, have been widely acknowledged. As a result, the goal of this study was to look into the impact of foreign macroeconomic factors, political instability, and the business environment on foreign direct investment in Eurasia countries. Many developing countries have softened their stances on foreign direct investment (FDI) in the hopes of luring more of this kind of investment and thereby bolstering their economies. This is due to the fact that there are many benefits to utilizing foreign capital during the expansion process. The panel data method was used to analyse information gathered from ten different Eurasia countries over a twenty-six-year period, from 1996 to 2021. The study's findings support the predicted outcomes of the hypothesized research. This study is one of the few in Eurasia countries that can be considered a pioneering study on the subject. This study will help policymakers and researchers understand the relationship between macroeconomic risk, political instability, the business environment, and foreign direct investment.
A STUDY ON FINANCIAL LITERACY, INVESTORS’ SENTIMENT, AND FINANCING DECISIONS WITH THE MODERATING ROLE OF INVESTORS’ EXPERIENCE: EVIDENCE FROM PAKISTAN
Authors: Afshan Ali
Published: December 2023

This study is unique to explore the impact of investor sentiments and financial literacy on the investment decision of investors with the moderating role of experience. In this relationship, the age and education of the investors are taken as control variables for getting efficient results. Therefore, empirical research is conducted to understand the behavioral pattern of individuals which can stabilize their investment decisions in an emerging market context such as Pakistan. In this study, we incorporate the theoretical perspective of cogitative psychology with investment decisions. For this purpose, three hypotheses are drawn to analyze investor sentiments, financial literacy, investor experience, and investment decision-making by collecting investing data from 100 investors in Pakistan. SPSS 23.0 is used to compile analysis results by applying different techniques such as Factor Analysis, Simple & Multiple Regression, and moderating techniques. The outcomes of the study explain that H1 is accepted, which explores that there is a positive relationship between financial investment and investment decision. Similarly, H2 is also accepted and reports that there is a direct association between investor sentiments and investment decisions. In addition, H3 significantly presents that there is partial moderation in the connection between investor sentiment and investment decision while embraces full moderation in the relationship between financial literacy and investment decision.
Systemic Risk and Tail risk of Fintech firms during COvid-19: A Case of Southeast Asian economy
Authors: Mohammed Khalifa Abdelsalam
Published: December 2023

The primary objective of this study is to contrast the tail risk that is encountered by Thai financial technology companies with the systemic risk that is encountered by financial technology companies in Thailand. During the COVID-19 outbreak, it was also investigated how the effects of tail risk and systemic risk affected Thailand's financial technology businesses. During COVID-19, the number of individuals using financial applications online surged drastically, giving clear proof of the sector's stratospheric ascent. During the same time period, the number of people using cryptocurrency apps increased dramatically. This is the first study of its sort, and it analyzes how tail risk, systemic risk, and fintech interact with one another using data from a sample that is typical of the Thai economy. The financial technology sector is the primary focus of our study. December 2019 and February 2022 will be used as the computation periods for the data of the fintech companies. Fintech businesses in Thailand look through the theoretical lens provided by the extreme value theory when calculating the tail risk of their portfolios. The fall in the value of technology businesses has given rise to the idea of establishing a significant number of financial technology companies located in Thailand. A lengthier and more widespread dispersion is consistent with an exponential growth of fintech businesses in Thailand during the course of the COVID-19 time period. There are a few businesses in our sample that have very short tails, which suggests that they are much too susceptible to unfavorable occurrences during COVID-19. The results indicate that the global technology index during COVID-19 is reliant on the systemic risk posed by Fintech. It's possible that these outcomes might be attributed to the large growth in customer bases seen by FinTech businesses during COVID-19. Fintech companies in Thailand saw significant growth during the epidemic of swine flu. The current research is among the first of its type when it comes to grasping the issues of tail risk and systemic risk in fintech enterprises in Thailand. This is excellent news for policymakers, financial experts, and academics, as it paves the way for a better understanding of these issues
KOMPETENSI SUMBER DAYA MANUSIA KOPERASI DI KECAMATAN KLUNGKUNG
Authors: Aristana Nengah , Arta Artana Wayan , Arta Artana Wayan
Published: December 2023

Bali today is experiencing a growth in the number of cooperatives, butthe growth of the cooperativeis not followed by the quality ofthe cooperative it self.Particularly in Klungkung cooperatives is still having problems in the field of humanresources cooperatives, which are owned by the board still does not have sufficientcompetence because of the lack of understanding of competence in accordance withthe needs of existing cooperatives. Therefore, this research intends toformulate thefactors thatinfluence cooperative human resource competencies that will be able tobe used as the basis in finding or developing its human resources. In the extraction of the factors thatmade   the overall show variables can explain the variety ofform factors. After that is the determination of the number offactors, which deserve to becalled whenthe factor has a value of more than 1 can be computed as a factor, sothat only four factors were formed. Form factor given the name 1) Mastery of work,2) Self-awareness, 3) Personal capability and 4) Individual excellence. Assessmentsfactorsindicate that the model has an accuracy of 61% on the error rate or alphaof 5%.
Dampak Literasi Digital Keyakinan Diri Dan Harapan Pendapatan Terhadap Intensi Berwirausaha Digital Pada Umkm Kecamatan Sumbawa
Authors: Laila Arbiah Fajriana  , Muhammad Nur Fietroh
Published: December 2023

This study aims to analyze and examine the influence of digital literacy, self-efficacy and income expectations on the interest in digital entrepreneurship in MSMEs in the Sumbawa sub-district. This research uses quantitative methods. Determined the sample in this study using the Paul Leddy formula and obtained 100 research subjects through non-probability sampling technique with the purposive sampling method. The data analysis tool used SPSS 26. The results of the analysis in this study indicate that digital literacy, efficacy and income expectations partially have a positive and significant effect on digital entrepreneurship interest in MSMEs in Sumbawa District.
Pengaruh Corporate Social Responsibility, Kebijakan Dividen Dan Profitabilitas Terhadap Harga Saham
Authors: Fitri Novianti  , Serli Oktapiani
Published: December 2023

Penelitian ini bertujuan untuk menguji pengaruh Corporate Social Responsibility, kebijakan dividen dan Profitabilitas terhadap Harga Saham pada perusahaan Food and Beverage periode 2015-2021. Populasi pada penelitian ini ada 39 perusahaan Food and Beverage periode 2015-2021. Sampel penelitian berjumlah 10 perusahaan Food and Beverage periode 2015-2021. Teknik sampling yang digunakan adalah Purposive Sampling. Analisis data yang digunakan yaitu uji asumsi klasik, uji pemilihan model, uji hipotesis (uji t/pengaruh) dan uji koefisien determinasi, dan diolah menggunakan program EVIEWS 12. Adapun model yang terpilih adalah Fixed Effect Model setelah melakukan uji pemilihan model Chow test, Uji Hausman. Hasil dari penelitian ini menunjukkan bahwa pada terdapat pengaruh positif secara parsial Corporate Social Responsibility, dividen payout ratio dan return on equity terhadap harga saham.
Pengaruh Literasi Keuangan, Toleransi Risiko, Kontrol Ilusi, Dan Kepercayaan Diri Terhadap Keputusan Investasi Di Pasar Modal (Studi Pada Nasabah KSPM Yang Bermitra Dengan Phillip Sekuritas NTB)
Authors: Fitri Melindasari  , Serli Oktapiani
Published: December 2023

Penelitian ini bertujuan untuk mengidentifikasi pengaruh literasi keuangan, toleransi risiko, kontrol ilusi dan kepercayaan diri terhadap keputusan investasi dipasar modal (studi pada nasabah KSPM yang bermitra dengan phillip sekuritas NTB). Metode pengumpulan data menggunakan kuesioner. Teknik pengambilan sampel yang digunakan adalah teknik purposive sampling dan jumlah sampel sebanyak 100 responden. Adapun metode analisis yang digunakan mengunakan Regresi linier berganda dengan aplikasi SPSS versi 26. Hasil penelitian menunjukkan bahwa, literasi keuangan berpengaruh positif dan signifikan terhadap keputusan investasi nasabah KSPM di pasar modal, toleransi risiko berpengaruh positif dan signifikan terhadap keputusan investasi nasabah KSPM, kontrol ilusi berpengaruh positif dan signifikan terhadap keputusan investasi nasabah KSPM dan kepercayaan diri berpengaruh positif dan signifikan terhadap keputusan investasi nasabah KSPM di pasar modal.