bluuebunny/crossref_metadata_2025_split huggingface dataset:
Socio-economy dynamics of hybrid corn farmers in South Sulawesi
Authors: Sarintang  , Yasin Muh. , Syam Amiruddin , Adriani W A. , Muslimin  
Published: November 2021

Abstract
The development of agriculture through technological processes in the field of agriculture is a dynamic of society that results in certain changes in its socio-economic life. The changes that occur in the farming community of hybrid corn seed production include changes in social aspects and economic aspects. In an effort to increase the production and productivity of hybrid corn, quality seeds are needed. To obtain quality seeds, internal and external monitoring is required in accordance with the management of seed quality standards. In seed production, there are two obstacles that are often faced, including social constraints in setting planting distance and time isolation, roguing, and detasseling. Economic constraints are caused by limited capital owned by farmers and the marketing system that is tied to the rights of seed licensors. To anticipate the obstacles that arise in the farming community, the role of the government is needed to take various steps and policies that can support farmers in dealing with their problems. In this case, government support is highly expected in determining the mapping of the seed area so that it can guarantee the purity of the crop in seed production.
Mechanical Characterization of TiO2 nanoparticles based on Glass Fiber Reinforced Polymer Composite
Authors: Singh Abhishek , Jayswal S. C. 
Published: November 2021

Abstract
Nanotechnology has become the best truly developing innovation in the field of engineering science. Numerous examinations have been completed by different exploration researchers in the prior many years. In my examination work research, the impact of cross breed E-glass built up fiber with epoxy Nano composite. The Nano composite covers overlays were set up by hand layup procedures by shifting layers of Titanium Dioxide (TiO2) nanoparticles of 0.6% individually. The nano added substances are utilized to improve the strength from destroy opposition, hardness of the polymer composite and high strength to weight ratio. The Nano composite laminates this prepared are characterized by the compression and flexural test. The flexural properties of the glass fiber built up plastic improved with expansion of nanoTiO2 filler particles. At 0.6 wt% of TiO2 and having 12 layers the force at yield is 327.99N and bending stiffness 63.11 N/mm and in 9 layers force at yield is 149.06 and bending stiffness 36.22 N/mm. True interfacial bonding b/w the fiber and epoxy turned into the primary motive for reaching higher flexural properties.
Comparative assessment of hard turning under dry and minimum quantity lubrication
Authors: Shaikh Avez , Shinde Ajinkya , Chinchanikar Satish , Zagade Guruprasad , Pardeshi Sonia 
Published: November 2021

Abstract
Hard turning with CBN and ceramic inserts is commonly regarded as a cost-effective alternative to grinding. However, there have been few studies comparing hard turning with low-cost carbide tools to high-cost CBN and ceramic cutting tools. However, when it comes to the usage of cutting coolant during severe turning, there are mixed outcomes. In this study, a PVD-coated TiSiN-TiAlN carbide tool was used to hard turn AISI 52100 steel in a dry and MQL environment. Through multi-objective optimization, a comparative assessment in terms of surface roughness, cutting force, and tool life under various cutting settings is provided. In terms of three components of cutting force, surface roughness, and tool life, mathematical models were constructed to forecast and improve machining performance. Under both dry and MQL conditions, the study discovered an optimal cutting speed of 108 m/min, a feed value of 0.09 mm/rev, and a depth of cut of 0.16 mm. Under MQL, hard turning produced optimal surface roughness and tool life of 0.88 m and 64 minutes, respectively. In comparison to hard turning under dry cutting, the optimal surface roughness was 1.07 m and the tool life was 49 minutes. Under MQL, tool life increased by over 31%, according to the findings of the experiments. Under dry and MQL conditions, however, no significant differences in cutting forces and surface roughness were identified.
Ridge Gap Waveguide based band pass filter for Ku-band Application
Authors: Chhasatia Neetirajsinh J , Chaudhari Jitendra P , Patel Amit V 
Published: November 2021

Abstract
This paper describes a simple, low loss, compact tuneable band pass filter based on ridge gap waveguide (RGW) technology for the Ku-band applications. This is achieved by keeping the height of the air gap in the gap guide structure equal to the thickness of the substrate or base of the structure. The resonant frequency and electromagnetic (EM) field distribution of the structure is investigated. This filter is designed by inserting the proposed ridge in the cut-off region of the gap waveguide. The frequency of tuning has been carried out using the slot created on ridge, which generates capacitive effect. Experimental results of the manufactured structure show an insertion loss of approximately 0.15 dB and a return loss of 16.38 dB over 4.5% relative bandwidth in Ku-band. The structure, put forwarded here, has been designed and optimized in the CST microwave studio environment and simulated results are validated by experimental results. The size of the structure is 64.65 mm × 64.65 mm × 7 mm.
2-Dimensional inline system for peppermint oil extraction
Authors: Anas M , Sharma A 
Published: November 2021

Abstract
Peppermint leaves have wide range of applications in medicines, toothpastes, soaps, mouth fresheners, chewing gums etc. However, in India, the traditional way of processing peppermint leaves for extraction of peppermint oil is slow, tedious, labour intensive, hazardous, and causes skin problem as well.
This paper proposes a method of mechanizing the post harvesting process, with least modification in the current apparatus being used by the farmers in the Indian villages. It proposes a non-electric 2-dimensional Mechanized system for movement and compaction of the compact/hay. The mechanism will help to reduce the number of labourers per unit hay volume and the risk associated with the contact of in-process hay with their skin. Also, a lot of time is wasted in putting the leaves/hay in the boiler vessel, preparing the hay in a compact form and in removing the processed leaves.
This paper is an attempt to get rid of most of the problems aforementioned and make the process safe, efficient, less labour intensive and more economical for farmers and workers. The mechanism proposed is sustainable and farmer friendly as it does not require any special training for its operation. It will increase the profit of small scale industries with small capital investment for the setup.
Investigation of substitute jar materials for Laboratory grade ball milling machine to process electrode materials for energy storage devices
Authors: Shinde Sourabh , Momin Taukir , Karkaria Vispi , Karandikar Parshuram 
Published: November 2021

Abstract
Copious forms of energy are available in nature, but electrical energy is the convenient form of energy. As a result of this, it is expected that the need for electrical energy will increase considerably by the end of this decade. Thus, the storage of electrical energy is now becoming of paramount importance. Nevertheless, ultra-capacitors are currently a central area of research for energy storage devices due to their high-power density rating, short charging time and long cycling time. The capacitance of an ultra-capacitor is majorly a result of the processing of its electrode materials. Ball milling is one of the most profitable and cost-effective processes of electrode material processing. However, in most of the ball milling research, the focal point is on materials used for balls in ball milling. It is also observed that the material used to produce ball mill jars is of equal momentousness. So, this research aims to examine various materials as jars for a ball milling machine.
Finite Element Model for Free Vibration Analyses of FG-CNT Reinforced Composite Beams using Refined Shear Deformation Theories
Authors: Biswas Surojit , Datta Priyankar 
Published: November 2021

Abstract
The present article deals with the free vibration of functionally graded carbon nanotube reinforced composite (FG-CNTRC) beams employing various refined deformation theories and validates the accuracy and feasibility of these proposed theories. The theories involved are the first order shear deformation theory (FSDT) and other refined theories involving additional higher order terms. Carbon nanotubes (CNTs) are assumed to be oriented along the axis of the beam. Uniform and three types of different functionally graded (FG) distributions of CNTs through the thickness of the beam are considered. The rule of mixture is used to describe the effective material properties of the beams. The governing equations are derived using Hamilton’s principle and solved using the finite element method (FEM). A FEM code is compiled in MATLAB considering a C
0 finite element. The influences of different key parameters such as CNT volume fraction, distribution type of CNTs, boundary conditions and slenderness ratio on the natural frequencies of FG-CNTRC beams are investigated. It can be concluded that the above-mentioned parameters have significant influence on the free vibration of the beam and the accuracy of the proposed refined theories is good.
Analysis of Electromagnetic Reflection Loss for Mesh Structure with A16061 MMC for Aerospace Applications
Authors: Bikkina Siva Chakra Avinash , Jayasree P.V.Y. 
Published: November 2021

Abstract
One of the major problems facing by the aircraft was a lightning strike. To overcome this problem, fiber-reinforced materials have been used. The fiber-reinforced materials have less conductivity. These fiber-reinforced materials can’t eliminate the lightning strike effect. For that purpose, the metal matrix composite materials significantly impacted the aircraft’s internal circuits and physical components from the lightning strike effect. To meet industries dynamic and ever-increasing demands, Al6061 metal matrix composite reinforced with fly ash must be utilized to build the aircraft to offer HIRF. The material thickness should be kept low as possible then it can be used to cover the plane’s surface. To prevent lightning strikes, it might be used to protect electronic components from a concentrated high-intensity radiated field, primarily in Aeroplan configuration. The electromagnetic characteristics of composites are measured using the X-band for normal incidence. The electromagnetic reflection properties of AL6061 reinforced with fly ash are studied in this study for mesh structure. Mat lab Software was used to calculate the maximum reflection loss of 33.88dB for 15% fly ash and 85 percent AL6061 at X-band.
Statistical Quality Study of the Parts Produced in an Automobile Industry: A Daimler India Case Study
Authors: Pati Tanmay , Kabra Shruti , Chadha Utkarsh 
Published: November 2021

Abstract
Every manufacturing industry considers defect-free production in this competitive era. Though it is practically impossible to improve the rate of defect minimization, statistical tools can be used. In this case study, we take data from Daimler India, an automobile part manufacturing industry specialized in manufacturing OEM tools like chassis, oil filter nipple, and so on, and study how many defects are made during the day. The defect-causing process was eliminated after using statistical quality control tools such as np charts and cumulative sum charts, resulting in higher production quality.
Economics-Based Payback and Life Cycle Cost Savings Assessment of Inverter Type Air Conditioners
Authors: Gupta Sunil Kumar , Arora B B , Arora Akhilesh 
Published: November 2021

Abstract
This paper investigates the options for a consumer to choose between different inverter and non-inverter type residential air conditioners (ACs) concerning their payback periods (PPs) and Life Cycle Cost (LCC) savings. The economics-based analysis carried out to evaluate the PPs by which the costs associated with owning and operating 3-star, 4-star, and 5-star inverter AC models are recoverable compared to non-inverter type (baseline model). The product costs (Cp
), the repair costs (CR
), the maintenance costs (CM
), and the energy costs (CE
) are taken as the decision parameters for evaluating the payback periods (PPs). It is shown that PP strongly depends on the energy cost. Estimates of P P s are calculated as the futurs value of present cost involved in buying, maintaining, and running the ACs. It is concluded that inverter technology can save electrical energy by 12-22.4% compared to a non-inverter air conditioner. PP of 3-star inverter AC is estimated 2.17 years while P P of 4-star and 5-star inverter ACs are 2.42 years and 2.33 years for 10 hours operation in a day when a higher slab of unit energy cost is considered. Depending on PP and daily usage requirements, a consumer can choose either a less efficient AC priced at a lower initial cost but more running cost or a more efficient AC priced at a higher initial cost but lesser running cost.
Electromagnetic shielding effectiveness for A16061 metal matrix composite based mesh wire reinforced with Flyash for oblique incidence of EM wave
Authors: Budumuru Srinu , Satya Anuradha M. 
Published: November 2021

Abstract
Nowadays, flywire is used exclusively in aeronautical applications. A plane’s complete control is dependent on electronic technology, yet it suffers from high-intensity radiated fields. An electromagnetic shield may be necessary to protect this equipment from external electromagnetic pollution. The current project attempts to create a protective barrier around the operating equipment to enhance its efficiency. AL6061 composite material was used to create a metal matrix mesh shield. It is reinforced with fly ash in various volume fractions, and the electrical characteristics and Shielding Effectiveness are determined (SE). The maximum SE is 45.36dB obtained, which can be effectively used as a shield for aerospace and other applications.
Systematic end-to-end testing of multiple target treatments using the modular RUBY phantom
Authors: Brodbek Leonie , Kretschmer Jana , Büsing Katrin , Looe Hui Khee , Poppe Björn , Poppinga Daniela 
Published: November 2021

Abstract
The RUBY head phantom in combination with the System QA insert MultiMet can be used for simultaneous point dose measurements at an isocentric and two off-axis positions. This study investigates the suitability of the system for systematic integral end-to-end testing of single-isocenter multiple target stereotactic treatments. Several volumetric modulated arc therapy plans were optimized on a planning CT of the phantom positioned in a stereotactic mask on the stereotactic treatment board. The plans were created for three artificial spherical target volumes centred around the measurement positions in the MultiMet insert. Target diameters between 5 and 40 mm were investigated. Coplanar and non-coplanar plans were optimized using the collapsed cone algorithm of the Oncentra Masterplan treatment planning system and recalculated with the Monte Carlo algorithm of the Monaco treatment planning system. Measurements were performed at an Elekta Synergy linear accelerator. The head phantom was positioned according to clinical workflow comprising immobilization and CBCT imaging. Simultaneous point dose measurements at all target positions were performed with three PinPoint 3D chambers (type 31022) as well as three microDiamond detectors (type 60019) and compared to the treatment planning system calculations. Furthermore, the angular dependence of the detector response was investigated to estimate the associated impact on the measured point dose values. Considering all investigated plans, PTV diameters and positions, the point doses calculated with the Monaco treatment planning system and the microDiamond measurements differed within 3.5%, whereas the PinPoint 3D showed differences of up to 6.9%. Point dose differences determined in comparison to the Oncentra Masterplan dose calculations were larger. The RUBY system was shown to be suitable for end-to-end testing of complex treatment scenarios such as single-isocenter multiple target plans.
Surface modification of silicone rubber by CF4 radio frequency capacitively coupled plasma for improvement of flashover
Authors: WANG Chenxu , ZHANG Bo , CHEN Sile , SUN Yuhao , YANG Xiong , PENG Yanan , CHEN Xingyu , ZHANG Guanjun 
Published: November 2021

Abstract
The flashover performance of insulating materials plays an important role in the development of high-voltage insulation systems. In this paper, silicone rubber (SIR) is modified by CF4 radio frequency capacitively coupled plasma (CCP) for the improvement of surface insulation performance. The discharge mode and active particles of CCP are diagnosed by the digital single-lens reflex and the spectrometer. Scanning electron microscopy and x-ray photoelectron spectroscopy are used for the surface physicochemical properties of samples, while the surface charge dissipation, charge accumulation measurement, and flashover test are applied for the surface electrical characteristics. Experimental results show that the fluorocarbon groups can be grafted and the surface roughness increases after plasma treatment. Besides, the surface charge dissipation is decelerated and the positive charge accumulation is inhibited obviously for the treated samples. Furthermore, the surface flashover voltage can be increased by 26.67% after 10 min of treatment. It is considered that strong electron affinity of C–F and increased surface roughness can contribute to deepening surface traps, which not only inhibits the development of secondary electron emission avalanche but also alleviates the surface charge accumulation and finally improves the surface flashover voltage of SIR.
Numerical simulation of hydrogen arcjet thruster with coupled sheath model
Authors: AKHARE Deepak , NANDYALA Hari Prasad , THANKAPPAN Jayachandran , KUMAR Amit 
Published: November 2021

Abstract
In the present work, a complete 2D chemical and thermal non-equilibrium numerical model coupled with a relatively simple sheath model is developed for hydrogen arcjet thruster. Conduction heat transfer in the anode wall is also included in the model. The operating voltages predicted by the model are compared with those in the literature and are found to be in close agreement. Power distributions for the various operating conditions are obtained, anode radiation loss primarily determines the thruster efficiency. Higher thruster efficiency was found to be associated with longer arc length. At cathode ion diffusion contribution dominates except at low input current where thermo-field electron current is dominant.
Filtering variational quantum algorithms for combinatorial optimization
Authors: Amaro David , Modica Carlo , Rosenkranz Matthias , Fiorentini Mattia , Benedetti Marcello , Lubasch Michael 
Published: November 2021

Abstract
Current gate-based quantum computers have the potential to provide a computational advantage if algorithms use quantum hardware efficiently. To make combinatorial optimization more efficient, we introduce the filtering variational quantum eigensolver which utilizes filtering operators to achieve faster and more reliable convergence to the optimal solution. Additionally we explore the use of causal cones to reduce the number of qubits required on a quantum computer. Using random weighted MaxCut problems, we numerically analyze our methods and show that they perform better than the original VQE algorithm and the quantum approximate optimization algorithm. We also demonstrate the experimental feasibility of our algorithms on a Quantinuum trapped-ion quantum processor powered by Honeywell.
On SINS\star tracker geo-localization
Authors: Bessaad Nassim , Bao Qilian , Jiangkang Zhao , Eliker Karam 
Published: November 2021

Abstract
This work focuses on the feasibility of a fully autonomous geo-localization system for near-earth applications based on the strap-down inertial navigation system (SINS) and the star tracker. First, each sensor is analyzed individually. Then, the performance of the integrated system in a dynamic situation is investigated through extensive simulations. An in-depth analysis of the contributing error factors is given, and the impact on geo-localization estimation process is highlighted. The navigation solution is proven to be affected by the sensors’ errors plus an algorithmic error from the dead reckoning computation. Lastly, simulations are concluded to assess the dynamic movement scenario’s performance and navigational possibility using the nonlinear Kalman filter. The results show the continuing divergence of the integrated navigation system affected by the dead reckoning algorithm and the instability of the vertical channel. However, the continuous initial alignment in static mode reinitializes the position error successfully.
Protein–RNA interaction prediction with deep learning: structure matters
Authors: Wei Junkang , Chen Siyuan , Zong Licheng , Gao Xin , Li Yu 
Published: November 2021

AbstractProtein–RNA interactions are of vital importance to a variety of cellular activities. Both experimental and computational techniques have been developed to study the interactions. Because of the limitation of the previous database, especially the lack of protein structure data, most of the existing computational methods rely heavily on the sequence data, with only a small portion of the methods utilizing the structural information. Recently, AlphaFold has revolutionized the entire protein and biology field. Foreseeably, the protein–RNA interaction prediction will also be promoted significantly in the upcoming years. In this work, we give a thorough review of this field, surveying both the binding site and binding preference prediction problems and covering the commonly used datasets, features and models. We also point out the potential challenges and opportunities in this field. This survey summarizes the development of the RNA-binding protein–RNA interaction field in the past and foresees its future development in the post-AlphaFold era.