bluuebunny/crossref_metadata_2025_split huggingface dataset:
Replacing the growing media to reduce the seedling weight of citrus (Citrus nobilis var. Microcarpa) and its effects on seedling growth
Authors: Umar A , Marzuki S U , Warman R 
Published: May 2021

AbstractSeedling translocation of citrus plant is labor-intensive and expensive. It is heavy due to the large amount of soil that is needed to growth the seedlings. This research aimed to overcome the difficulties by reducing or replacing the growth media of the seedling and examined its effects on the seedling growth. The trial was conducted in Monterado Experimental Farm, Bengkayang Regency, West Kalimantan. There were two factors in the experiment, i.e. the type of growing media and biological agent. The type of growing media factor consisted of two levels, soil and cocopeat, while the biological agent factor consisted of three levels,Trichoderma, Bioboost©, and control. The sample seedlings were selected using simple random sampling method. The results showed the survival rate was 100% for all treatments. The use of soil reduced 59.25% of the initial seedling weight, while cocopeat reduced the weigh up to 77.84%. There were no significant differences in the number of leaves, leaf width, number of shoots and shoot lengths caused by different growing media and the application of the biological agents.
Design of video-based extension media concerning the utilization of rice bran as functional food
Authors: Fadhilah N , Fahmiati C , Utami P A , Febriansyah R S , Afifah Y , Anggraini Y , Rusdiyana E 
Published: May 2021

Abstract
The objectives of program were to produce video-based extension media design, (2) to produce a credible agricultural extension media in helping community service, particularly in relation to the processing of rice bran (rice sifting) into functional food in dasawisma (ten house) groups. Data was analyzed using triangulation technique. The result of research showed that the video-based extension design concerning the processing of rice bran into a variety of functional food used combined text (letter), image, sound, colour, and animation, constituting the advantages (strengths) of video media compared with other media. Revised extension media is well accepted by the public and considered effective in absorbing the material delivered up to 90% with an assessment score 9,5.
Experimental Study on the Performance of the Gas Centrifugal Seal with Continuous Injection and Discharge of Sealing Fluid
Authors: Kunyi Chen , Shuangxi Li 
Published: May 2021

Abstract
The centrifugal seal has the advantages of simple structure, long service life and the cost is far lower than the dry gas seal. But under high-speed gas conditions, the temperature of the sealing fluid rises too high and low sealing pressure. This paper studies the gas centrifugal seal with continuous injection and discharge of sealing fluid, establishes a numerical model, simulates the gas-liquid two-phase flow field and temperature field in the sealing chamber. Revealing the effects of the speed and the sealing fluid flux on the sealing performance by comparing the changes in the sealing fluid pressure, temperature, and sealing capacity under different operating conditions. And the reliability of its application to gas mechanical seals is verified through experiments. The results show that at high speeds, the pumping compression effect of the sealing fluid is enhanced, and the sealing capability is improved. Within a certain range, increasing the flux of the sealing fluid can effectively reduce the temperature and prevent the sealing fluid from vaporizing, the continuous injection and discharge structure has a significant effect.
Dynamic Analysis and Experimental Research on the Cantilever High Speed Rotor of Turbofan Engine
Authors: Nie Weijian , Deng Wangqun , Yuan Sheng , Chen Yanong 
Published: May 2021

Abstract
Taking a simulated low-pressure rotor of a turbofan engine as the research object, the dynamic characteristic calculation model of the simulated low-pressure rotor with hollow shaft and solid shaft was established respectively by using the finite element method. The first three order critical speeds and mode shapes of the rotor were calculated systematically. The dynamic balance test of the simulated low-pressure rotor and the research on the damping effect of the squeeze film damper were carried out on the high-speed rotating test rig, and the dynamic characteristic test was completed in the full speed range. The results show that the finite element results agree well with the experimental results. The rationality of the rotor’s hollow shaft structure and rotor dynamic design was verified. The research provides reference and technical support for structural design, dynamic design and experimental research of real low-pressure rotor in engine.
Calculation and analysis of interaction flowfield over tiltrotor aircraft in conversion mode
Authors: Huan Li , Xiaojun Wu , Hongyin Jia , guiyu Zhou , Pengcheng Cui , Bin Li 
Published: May 2021

AbstractAiming at solving the complicated aerodynamic interaction problem of conversion mode, the preconditioning method is applied. Combined with the unstructured hybrid technique and the overlapping grid interpolation technique, a numerical simulation method for tiltrotor aircraft in conversion mode is established. On this basis, the validity of the numerical method is verified. Then, with the numerical simulation of isolated rotor, isolated fuselage and tiltrotor aircraft, the laws of the aerodynamic interaction of rotor/fuselage/wing/tail are analyzed with tilting process. The calculation results show that the rule of the influence of the rotor wake on the aerodynamic performance of the wing is different between the inner side and the outer side of the wing. Compared with the isolated rotor, the thrust coefficient of the rotor of the aircraft increases slightly by 0 ∼ 5% during the tilting process due to wing and the fuselage.
An Insight to the Interphase in Polymer Nanocomposites
Authors: Pant Gaurav , Singh Mehra Kuber 
Published: May 2021

Abstract
Nanocomposites has floated in the market as the best in class material related to many sectors of manufacturing. Base material is embedded with nanoparticles to form nanocomposites. Afterwards, layered formation known as interphase starts to take place. It is the link (interface) between the base material (polymer) and the nanoparticle. Up till now, the problem of finding the material properties in this interphase has become a challenge for researchers and scientists. This piece of work corresponds to analyzing the possible types of variations in properties within interphase. Some power law may govern the distribution of material properties in nanocomposites and unit cell of same may be investigated. For getting the values of final properties of polymer nanocomposites, ideation of variation in the interphase area is quite essential. The huge improvement in the material properties in nanocomposites is observed just because of the zone of interphase. As it is a very difficult area, as far as its property analysis is concerned, So extensive literature survey is required for proceeding ahead. Nanocomposites have nowadays also coined in the form of novel materials for various processes like additive manufacturing.
Mechanical properties of cement mortar with Lime & Rice hush ash
Authors: Shukla Ashish , Kishore Kamal , Gupta Nakul 
Published: May 2021

Abstract
Hardening of cement-based mortars along with rice husk ash and lime in various formulations was studied using mechanical strength. As cement is partially substituted with RHA; the combined hydration of (OPC) cement, carbonation reaction, and pozzolanic reaction result in hardening. Although hydration of cement contributes to boost the mortar early strength, at the later stages, carbonation becomes much greater as its cement level decreases and the mortar’s porosity increases. The long-term strength growth of cement–rice husk Ash mortars is below that of the reference cement (OPC) mortar due to its higher porosity resulting from high demands of water in Rice husk ash grains. For cement-Rice-husk Ash – lime mortars with 10 percent cement weight, the reduction in strength is observed at an early stage. It has been clarified that the current phase of calcium silicate hydrate (C–S–H) is insufficiently cemented and carbonated.
Effect of Additives on Rheological Properties of Water
Authors: Behera Ajit Kumar , Raju Indukuri Viswanath , Baratam Akhil Teja , Sharma Aman , Mandal Surajit , Prasann Kumar Ankit Kotia 
Published: May 2021

Abstract
Agriculture is one of the main consumers of freshwater products. The challenge of draughts is a major obstacle to the progress of agriculture. In the present study, the rheological properties of the water have been modified to change the flow properties. For the preparation of rice husk powder, a prototype of a machine is proposed. Rice husk powder and starch are used to modify the viscosity. Six samples are prepared using rice husk and starch in varying proportions. The rheological properties are measured at a shear rate of 0-200. The presence of powdered material has significantly altered the viscosity of the water.
Mechanical and Thermal Properties of Graphene based Hybrid Polymer Nanocomposites - A Review
Authors: Haider Mohd. Rehan , Kumar Singh Pradeep 
Published: May 2021

Abstract
Graphene-based materials are platelets of one or several layers that can be supplied by substance techniques in mass quantities. Therefore we present a report on polymer nanocomposites, including late work using graphite nanoplatelet fillers, using graphite-based fillers. In addition to techniques for the dispersion of these materials in various polymer grids, various courses used to manufacture graphemic materials are discussed. In addition, the mechanical and thermal characteristics of these composites are examined and The characteristics of graphene-based materials and their dispersion condition in the grid will be studied. A diagram of possible uses for these composites and existing challenges in the field is geared to the future and is aimed at enhancing the materials that are promising. In this review, the analysis of a few decent articles focused on half and half of the composites of graphene and The adaptive impact of graphene with the other nanoparticles in order to calculate its effects on the composite mechanical properties.
Mechanical Characterization Of Polymer Nano Composite: Progress In Last Decade
Authors: Singh Pradeep kumar , Dwivedi Vishwa Deepak 
Published: May 2021

Abstract
In recent times it is versatile in the study, technology and sciences fields natural fibres with nano polymeric materials though as an effective strengthening for cognitive resources. Natural fibres are reasonably inexpensive and then not only solid and powerful, they often exhibit a top power, a reduced weight, non-abrasive, environmentally and recyclable qualities. Usually using natural fibres such as silk, cedar, pineapple, tobacco, etc., plastic reinforcing of discarded biodegradable polymers is a safe choice for the climate. This helps the production of polymeric composites that demonstrate best to offer implementations in the architecture, automobile, aviation and manufacturing operations. Due to the wider crystallite size, and stronger screen resolution, with interesting properties, nano polymer composite displays major applications in various fields. In comparison to fibre content interfacial interaction power, the elastic modulus of a natural fibre reinforced nano polymer matrix rely on variables including fibre strength, fibre duration, electrochemical oxidation and inclination.
Photosensitivity of semiconducting SeTeSb glasses
Authors: Saraswat Shobhit , Tomar V K , D Kumar V K Deolial , Dahshan A. 
Published: May 2021

Abstract
Photo-electrical measurements are done on thin films of SeTeSb to see the influence of Sb additive on the light-induced conduction of binary Se80Te20 alloy. The ratio of electrical conductivity under dark to light conditions has been measured for measuring the photosensitivity of the samples. The activation energies of conduction for dark and light conditions (∆Eph) are also determined. The results reveal that both σph / σd and ∆Eph are reduced with an increase in Sb concentration. This indicates that density of defect states (DDS) is increased with an increase in the concentration of foreign element (i.e., Antimony) in thin films of these glassy systems. The cause of the increase in defects is also discussed. Start your abstract here…
Numerical analysis of displacement ventilation for different locations of the outlets
Authors: Naidu A H , Singh A , Mohan T V S Yaswanth , Murthy K K , Mallela M , Choudhary R 
Published: May 2021

Abstract
In the earlier phase of construction of simple buildings, natural ventilation was the best ventilation method used in those times. It was a simple system which includes windows, doors, chimneys etc. where forces like buoyancy force acts due to thermal and density variations of indoor and outdoor air. Later, due to increase in working population in offices, industries, natural ventilation failed to satisfy the comfort levels of the working people. A combination of mixing ventilation and natural ventilation introduced satisfying industries and large shopping outlets in both comfort levels and also improved air distribution quality guaranteeing the safety of people working by clearing out pollutants efficiently. But the shortcomings of this ventilation were such that the higher jet velocities causing loud noises, less efficiency causing pollutants concentration to rise in air, etc. Therefore, at places where noiseless, efficiency and moderate comfort is preferred displacement ventilation came in the present scenario. Displacement ventilation supplies cold air at low velocities from the floor level, while hot air rises to the ceiling due to buoyancy while hot air escapes through the exit outlets placed at proper positions to create a way for the circulation of fresh air. The displacement ventilation in an office model with different variations that depend on heat sources, outlet positions etc. is studied in the present study. Different cases have been simulated for the different locations of the outlet and number of heat sources.
A Review on The Axis Tracking Used for Solar PV Application
Authors: Singh Amit Pratap , Yadav Indresh 
Published: May 2021

Abstract
Today, the world is facing an immense challenge, such as the energy crisis, and we know that only small quantities of fossil fuels are available and these will be lost after 35-40 years or their quantities will be very limited. Hence, to fulfil our energy demand, the right option is to use renewable energy. Renewable energy is various types like wind energy, biomass energy (such as ethanol), hydropower energy, solar energy, etc. But we use solar energy the most because this energy is installed at a very low cost. And also, many important factors affect solar PV power production. Out of these, the most important is the solar tracking system which achieves very high efficiency in comparison to fixed systems. This paper uses various types of tracking techniques like active tracking, passive tracking, and chronological tracking, and also a comparison with the different tracking is also discussed. From these discussions, one can select the tracking method adopted for a specific application.
Numerical Analysis of Liquid Immersion of Panels as a Cooling Technique
Authors: Dixit Krishna Kant , Saxena Aditi , Yadav Indresh 
Published: May 2021

Abstract
The materials used in the manufacturing of solar panels is a semiconductor which is sensitive to the irradiation falling on it. The semiconductor materials begin to heat and becomes inefficient after certain point of temperature and the power output becomes too low to utilize. To overcome this problem of high temperature certain cooling techniques are implemented. The aim of this paper is to analyse the reduction in the temperature of the panels which can be obtained for different ambient conditions by implementing liquid immersion of panels as a cooling technique by simulating the equations involved in the dissipation and absorption of heat from the panels. The immersion of panels reduces the direct contact of panels with the heat absorbed from the irradiation by changing the refractive index of the medium from air to water.
Construction and Performance Analysis of a New Natural Convection Solar Dryer for Drying of Tomatoes and Green Chilies
Authors: Sharma Avdhesh Kumar 
Published: May 2021

Abstract
Mechanical drying of farming items is a vitality expending activity in the post-gathering innovation. More prominent accentuation is given to utilizing sun powered vitality sources in this procedure because of the significant expenses and deficiencies of non-renewable energy sources. Therefore, an appropriate technology for drying of agricultural products has been developed and its performance of drying of tomatoes and green chilies was evaluated. A new solar dryer working on natural convection was developed. The point of this investigation is to assess dryer execution under natural convection methods of drying. In natural convection, air mass stream pace of 0.04849 kg/s was acquired. Heated sir stream reached on average drying temperature of 50.5°C in characteristic convection. The outcome acquired from natural convection methods of drying were likewise contrasted with open sun drying. The shading, flavor and time required for drying is good in solar drying when contrasted with sun drying.
Engineering Workshop generate waste: A plan for its management
Authors: Mahmood Moazzam , Dwivedi Vijay Kumar , Anas Islam 
Published: May 2021

Abstract
-Engineering workshops are an integral part of every technical Institute. All engineering graduates of all streams are supposed to go through engineering workshops in their first year of study. The workshops required to focus on the issues pertaining the management of wastes generated while the students are learning (working) and to develop consensus that waste management is a problem. Workshop waste material is a key factor when assessing the sustainability of a manufacturing process. The cost of the raw material assigned to the institutional workshops is very high because of its high utilization by all the engineering graduates, so it is very important to manage the raw material as well as the finished product of every shop to convert into useful household product. This paper attempts to suggest the finished product of one shop to be utilized as a raw material for another shop in order to reduce the running cost of engineering workshops and the objective of this paper is to promote the awareness to the engineering graduates towards the reuse of the used material of the generated mechanical wastes in the institutions.
Process Parameters Optimization Through Taguchi and ANOVA Analysis - A Review
Authors: Raman Ravi Shankar , Kukreja Nitin , Singh Nidhi 
Published: May 2021

Abstract
In the present scenario the period of rivalry and financial disturbance, a wide range of organizations are using the various optimization techniques or strategies that are helpful for keeping up and enhance the quality and efficiency. In this paper the outline on, the improvement of various boundaries in milling and drilling operation is discussed through some research survey. The ANOVA technique was used to found the significance control factors which help to measure the required surface roughness parameter. The response surface methodology and DOE methods are generally utilized in the various research study on milling and drilling operation. The quality of machining process are depends on various machining parameters like cutting speed, feed rate, tool diameter and structure, cutting depth, work piece material etc. The all above parameters are the key factors for machining optimization process and discussed through this review paper surface roughness has been analyzed Taguchi strategy.
Performance Enhancement and Analysis of Shell and Tube Type Heat Exchanger
Authors: Sengar Trivendra , Kumar Agrawal Manoj , Grover Tarun 
Published: May 2021

Abstract
Nano-fluids are playing a very important role in thermal stream due to its physical and thermal properties. Now a day it was observed that there are lots of papers which have explained the deep study on nanofluids. There are so many areas in which nanofluids are used to increase the thermal efficiency and coefficient of heat transfer. In this review comprehension, many research works which are related to nanofluids used as a working fluid in shell and tube heat exchanger will be summarized in efficient way. And theoretical as well as experimental study is to be performed for shell and tube heat exchanger to determine what the effects on various parameters of graphene nanofluid, silver nanofluid, Al2O3 nanofluid and copper nanofluid. Graphite is the cheapest form of producing flanks of graphene and these samples of produced graphene were optimized with help of different type of methods. To increase the performance of heat transfer of shell & tube heat exchanger, the graphene nanofluid is used as a working fluid rather than any different type of ordinary fluid. The thermal efficiency and the coefficient of heat transfer depend upon the inlet temperature, flow rate, concentration of working fluid. The general outcomes show that by increasing in concentration of nanoparticle and flow rate of working fluids, there will be the increment in heat transfer rate, thermal conductivity and efficiency of heat exchanger.
Mass Optimization of Automotive Radial Arm Using FEA for Modal and Static structural Analysis
Authors: Billur Santosh , Raju G U 
Published: May 2021

Abstract
The radial arm is an important part of an automobile suspension system. A vehicle suspension system having radial arms that are connected to axle brackets through vertically arranged bushings. The radial arms are fabricated using sheet metal members that are assembled in a clam-shell arrangement. An important consideration in the design of radial arm is the natural frequencies and mode shapes for dynamic loading conditions along with stiffness. The present work is focused on mass optimization of radial arm for modal and static structural analysis. The work includes investigation of natural frequencies and mode shapes of the optimized design of radial arm and comparing with the static structural analysis results using Finite element analysis tool. The radial arm was modeled in Catia V5, finite element modeling was done in Altair Hypermesh and analysis was done using Optistruct solver. From the static stiffness analysis, it was observed that the mass of the assembly can be reduced for given loading and boundary conditions by carrying out design modifications to the assembly without changing the manufacturing process. It was found that mass has been reduced to 13% of baseline model and stiffness also increased in all the directions. Modal analysis results indicate that all the natural frequencies are well within the range of baseline model.
Design and implementation of AI Based Robotic Car for Surveillance and transportation
Authors: Kumar Ajitesh , Kumari Mona 
Published: May 2021

Abstract
The world of control is an exciting field that has exploded with new technologies where the Internet of Things vision becomes a reality. Today, IoT with AI is used to make applications such as intelligent transportation, smart security, and smart home. The wireless communication technique is beneficial in IoT nowadays. In this paper, the author proposed a model for android control robot car using wireless technology. Obstacle detection is advantageous in terms of avoiding accidents; the author has been introduced in this paper. This robot car also detects the AQI index of the place. The data is shared on the BLYNK cloud app as well for further decisions.