bluuebunny/crossref_metadata_2025_split huggingface dataset:
External force field during diffusion - sedimentation in condensed matter
Authors: Wierzba Bartek , Nowak Wojciech , Wierzba Patrycja , Sieniawski Jan 
Published: August 2023

In this paper numerical description of the external force field during interdiffusion is discussed. Two methods of modeling the sedimentation process will be presented. Mainly, the steady state and evolutionary approximation. The proposed approaches will based on the generalized Darken method. The main equations will be the mass conservation and equation of Both presented approximations will based on the method of lines to solve numerically the ordinary differential equations (ODEs) system resulting from the space discretization (Schiesser, 1991). The uniform grid, which contained N mesh points along the x direction, respectively, was used and the concentrations and drift velocity were defined at points xk. The applied discretization led to the system of ODEs in time variable. The evolutionary method will based additionally on the adaptive step-size Runge–Kutta-Fehlberg modification. The six evaluations of the functions from the fifth-order Runge–Kutta algorithm were used to make other combinations implemented in the fourth-order Runge–Kutta method. The difference between these two estimates served as an estimate of the truncation error. Hence, the step size was adjusted (Press, 1992). The results of the proposed methods will be compared and discussed.motion. Thus the simultaneous action of backstress, external forces and of Kirkendall shift during interdiffusion in metals is described by self-consistent scheme. The diffusion flux is than determined by both, chemical and mechanical potentials - j=Di grad(ui).
Towards intelligent materials testing with reduced experimental effort for hot forming
Authors: Bambach Markus , Imran Muhammad  , Buhl Johannes  , Härtel Sebastian  , Awiszus Birgit  
Published: August 2023

Hot forming processes are typically used to deform metals to the desired shape at lower forming forces and to control the microstructure. During hot deformation, the microstructure evolves by dynamic recrystallization after certain critical conditions are reached. The final recrystallized grain size controls the post-hot forming mechanical properties of metals and components. To predict the evolution of microstructure and flow stress, various material models were developed and implemented in finite element codes. They require a significant number of material-dependent parameters. Currently, experimental designs with a full-factorial approach for a range of temperature and strain rates are utilized to determine the desired parameters, which involve a huge experimental effort. The aim of this paper is to propose a methodology for parameter identification with reduced experimental effort where progression of testing and data evaluation is parallelized. An iterative, sequential approach is presented which optimizes the new testing conditions based upon preceding experimental conditions. The approach is exemplified for the high-temperature material Alloy-800H, using a material model that allows for accurate predictions of the flow stress. The developed strategy allows to achieve the desired accuracy of the material model by utilizing about a half of test matrix representing a full-factorial design. Hence, an efficient cost- and resource-optimized
Finite Element Modelling of Titanium Aluminides
Authors: Sizova Irina  , Sviridov Alexander  , Günther Martin  , Bambach Markus  
Published: August 2023

Hot forging is an important process for shaping and property control of lightweight titanium aluminide parts. Dynamic recrystallization and phase transformations play an essential role for the resulting grain size and accordingly the mechanical properties. Due to the fact that titanium aluminides require forging under isothermal conditions, reliable process modeling is needed to predict the microstructure evolution, to optimize the process time and to avoid excessive die loads. In the present study an isothermal forging process of a compressor blade made of TNB-V4 (Ti–44.5Al–6.25Nb–0.8Mo–0.1B, at. %) is modeled using the Finite Element (FE) – Software Q-Form. A microstructure model describing the microstructure evolution during forging is presented. To calibrate the model, the high-temperature deformation behavior was investigated using isothermal compression tests. The tests were carried out at temperatures from 1150°C to 1300°C, applying strain rates ranging from 0.001s-1 to 0.5s-1, up to a true strain of 0.9. The experimentally determined flow stress data were described with model equations determined form the course of the strain hardening rate in Kocks-Mecking plots. An isothermal forging process of a compressor blade was carried out and used to validate the results from the FE simulations.
The MLPG in gradient theory for size-dependent magnetoelectroelasticity
Authors: Sladek Jan , Sladek Vladimir , Hrcek Slavomir 
Published: August 2023

The strain gradient magnetoelectroelasticity is applied to solve two-dimensional boundary value problems. The electric and magnetic field-strain gradient coupling is considered in constitutive equations. The meshless local Petrov-Galerkin (MLPG) is developed to solve general problems. All field quantities are approximated by the moving least-squares (MLS) scheme. Effective material properties for a piezomagnetic matrix with regularly distributed piezoelectric fibres of a circular cross section and coating layer are presented.
Efficient Transfer of C++ Objects on Intel Xeon Phi KNC in Offload Mode
Authors: Hanousek Vít , Oberhuber Tomáš 
Published: August 2023

Intel Xeon Phi KNC is a modern coprocessor designed for the high performance computing. In this paper we describe efficient method for transferring C++ objects in the Offloading mode. Our aim is to get consistent interface with NVidia CUDA framework in Template Numerical Library (TNL). As working example we use this library and the heat equation problem to demonstrate efficiency of implementation on Intel Xeon Phi and compare CPU with this coprocessor.
Structure-preserving numerical scheme for a generalized area-preserving crystalline curvature flow
Authors: Ishiwata Tetsuya , Yazaki Shigetoshi 
Published: August 2023

The presented numerical scheme preserves variational structure of a generalized area-preserving crystalline curvature flow. The scheme is based on an iteration and a projection method. Several numerical examples will verify that the enclosed area is preserved in numerical computation with high accuracy in the sense of double precision. Numerical computations realize theoretical convexification results starting from almost convex polygon, and are extended to a general setting starting from nonconvex polygon.
Sustainability of Farmer Producer Organisation’s – Major constraints in functioning of FPO in Tamil Nadu, India
Authors: Jayashree V. , Rani A. Janaki , Karthikeyan C. , Malarkodi M. , Selvi R. Gangai 
Published: August 2023

The concept of group formation and collectivization by organizing at the regional level is very important in the era of globalization and free trade liberalization. FPOs organize small farmers for forward linkages such as collective, marketing, processing, and market-driven agriculture production, as well as backward linkages for inputs like seeds, fertilizers, credit, insurance, knowledge, and extension services. Even though FPOs are doing well, still they face lot of challenges and struggle for their sustainability. Keeping these factors in view, the current study was done to determine the constraints, that Farmers' Producers Organization (FPO) faced for sustainable functioning. The study was conducted in Pennagaram block of Dharmapuri district in Tamil Nadu. 100 members of FPO were selected for the study. The interview schedule is used to collect the data. Rank Based Quotient (RBQ) was used to analyse the data collected. The results showed that lack of initiatives among the FPO members with the RBQ score of 83.83 under personal constraints, lack of well-developed processing facilities with the RBQ score of 90.00 under infrastructural constraints, lack of crop insurance facilities with the RBQ score of 93.00 under economic constraints, high transportation cost with the RBQ score of 95.17 under marketing constraints, weak economic status to run the organisation with the RBQ score of 86.38 under organisational constraints and lack of timely, cheap and good quality inputs with the RBQ score of 94.00 under technical constraints were the major constraints faced by the FPO members. Initiation among the FPO members, well developed processing and marketing facilities in their villages, provision of crop insurance for affected farmers, tax exemption, inclusion of their millets production in ration shops for supply are the suggestions expressed by the FPOs for their sustainability.
Frequency Distribution of ABO and Rhesus Blood Group System and their Association with the Prevalence of Various Clinical Disorders among the Kashmiri Donors: “A Possible Correlation or Just Random Distribution”
Authors: Bashir Mudasir , Lone Moien Rasheed , Sofi Ishtiyaq Ahmad , Lone Shabir-Ud-Din 
Published: August 2023

Aim: The knowledge of blood group distribution is essential for inventory management and disease trends related to different blood groups. Besides being important in blood transfusion, ABO and Rh blood group system play an important role in forensic pathology, disease susceptibility and population genetics. The aim of the present study was to determine the frequency and distribution of ABO and Rh blood groups among (Bachelor of Medicine, Bachelor of Surgery/Bachelor of Dental Surgery) students belonging to different geographical locations in the Kashmir valley, Jammu and Kashmir, India as well as the prevalence of various disorders among the students and their parents in relation to ABO and Rh blood groups.
Study Design: A Comparative Study.
Place and Duration of Study: Department of Physiology, Government Medical College Srinagar, Jammu and Kashmir, India.
Methodology: The ABO and Rh status was determined according to the classical slide test method. The prevalence of various disorders in the students and their parents was studied by self-administered questionnaire and all the required information was collected
Results: The overall prevalence of the different blood groups followed the order: O+ > A+ ≥ B+> O->AB+>B‑.The most common prevalent disorders associated with different blood groups were diabetes, hypertension, hyperthyroidism, hypothyroidism and rheumatoid arthritis. The other less prevalent disorders associated with several blood groups were polycystic ovarian disease, gout, myopia, fatty liver, atrial septal defect, HBV infection and vitiligo.
Conclusions: The results of the present and other studies indicates that if not the exact cause of disease, the individuals with different blood group antigens are susceptible to several disorders and other health problems. Further research investigations should be conducted at large scale in order to understand such possible connections between the blood groups and diseases if any such exist.
Effects of Ethanol leaf extracts of Mangifera indica and Gongronama latifolium on some Haematological Parameters of Albino Wistar Rats
Authors: Nyah Nkereuwem U. , Effiong James O. , Okon Okon E. , Obosi Ekemini J. , Essien Ukeme A. 
Published: August 2023

The effects of ethanol leaf extracts of Mangifera indica and Gongronema latifolium on some haematological parameters (Haematocrit, HCT; Mean corpuscular Haemoglobin concentration, MCHC; Neutrophils, NEUT; Red cell Distribution width, RDW; and mixed blood cell count, MXD) in albino wistar rats were evaluated. Sixteen animals (185-223g) were assigned four groups of four rats each. Groups 1 and 3 were treated with 200mg/kg Mangifera indica and Gongronama latifolium respectively.
Group 2 was treated with 200mg/kg of both plant leaf extracts at 50:50 dosage ratio. Group 4 was not treated and served as control. Treatment was done daily via oral route for one month. The animals were allowed free access to commercial rat mash and water throughout one month treatment. At the end of the treatment, no significant difference (P>0.05) was found in the HCT, MCHC and MXD levels in all the treatment groups when compared to the control. No significant difference (P>0.05) was also found among the treatment groups. NEUT levels in groups 1,2 and 3 animals recorded significant increase (P<0.05) when compared to the control but, no significant difference (P>0.05) was observed among the treatment groups. RDW recorded significant decrease (P<0.05) in groups 1,2 and 3 when compared to the control, but not significant different (P>0.05) was found among the treatment groups. These results implied that ethanol leaf extracts of Mangifera indica and Gongonema latifolium have no adverse effects on the haematological indices studied.
Composition, Diversity, and Value of Ecological Importance in Andean Grassland Ecosystems according to the Altitudinal Gradient in the Huacracocha Micro-Watershed, Peru
Authors: Yaranga Raúl M. , Pizarro Samuel E. , Cano Deyvis , Chanamé Fernan C. , Orellana Javier A. 
Published: August 2023

Aims: determine the composition and floristic diversity, the similarity between sites based on the distribution of species in the altitudinal gradient, and determine the value of ecological importance, in Andean grassland ecosystems.
Study Design: Original research.
Place and Duration of Study: This study took place in the Huacracocha micro-watershed in the Central Highlands of Peru, during the rainy season (January - March 2022).
Methodology: The agrostological evaluation points were determined taking into account twelve sites of interest were determined, located from the lowest part of the micro-watershed (4091.8 masl) to the part with the highest vegetation cover (4512.27 masl), the agrostological reading process at each evaluation site was carried out using the radial transect method with the line and intercept point technique.
Results: We observed the presence of the presence of 78 vascular species, included in 51 genus and 21 families, was found. The dominance of certain species characterized the type of grassland vegetation, and at least 3 species determined the similarity between sites. The alpha diversity index was low, and the value of ecological importance ranged between 0.0062 and 0.2194.
Conclusion: It was concluded that the Andean grassland ecosystems are constituted by a complex community of grasslands based on numerous floristic families, genus, and species, likewise, the dominance of species among the shared sites characterizes the vegetation type, and the diversity index and the IVI determine the complex structural characteristics with great biodiversity.
Multivariate Analysis in Wheat (Triticum aestivum L.) for Yield and Attributing Traits under Soil Salinity and Alkalinity in Haryana
Authors: Phougat Divya , Saharan Rajender Parshad , Panwar Ishwar Singh , Verma Ajay , Choudhary Sheetal 
Published: August 2023

Salt-affected soils could be used by improving and developing salt-tolerant genotypes depending upon the amount of genetic variation and salt stress response of adapted and donor sources of wheat. Salt stress affects 20% of global cultivable land and is increasing continuously owing to the change in climate and anthropogenic activities. Globally, saline soils cover 3.1% i.e. 397 mha of the total land area and around 6.74 mha area of India is affected due to salinity. Salinity stress negatively affects the growth and development of wheat leading to low grain yield and quality. A station varietal trial was conducted to identify salt-tolerant genotypes, wherein 24 genotypes including 4 checks, namely, KRL 19, WH 157, KRL 210 and KRL 283 were evaluated in 6 replications in 4.0 m x 1.20 m in RBD under natural saline patch (pH 8.5, ECe 4.2 dsm-1) at Research area of Wheat and Barley Section, Department of Genetics and Plant Breeding and Department of Soil Science (pH 8.5, ECe 4.5 dsm-1), CCS HAU, Hisar during Rabi 2021-22. Observations were recorded for germination (%), days to heading, days to maturity, plant height (cm), tillers per meter row, 1000-grain weight (g), grain yield per plot (g/plot) and hectoliter weight (kg/hl). High positive correlation has been observed for 1000-GW (g) with GY/P (g/plot), PH (cm) with hectoliter weight (kg/hl). Non-significant correlation was observed between days to heading and germination with plant height and hectoliter weight. Clustering of genotypes based on Ward’s Euclidean method was done so that identical genotypes may grouped together; 24 genotypes were grouped into three distinct clusters. Hectolitre weight (kg/hl) expressed as point of dissection of studied traits as GY/P (g/plot), 1000-GW (g), DM and PH (cm) falls at one side and germination (%), DH and T/meter row lies at another side. Entries, namely, WH 1313 (59.6 q/ha), WH 1306 (54.9 q/ha) and WH 1309 (52.9 q/ha) performed better and found significantly superior to the best check WH 157 (43.5+8.2 q/ha) at Department of Genetics and Plant Breeding. P 13582 (61.6 q/ha), P 13650 (62.1 q/ha) performed better and found significantly superior to best check KRL 283 (46.4+13.7 q/ha) at Department of Soil Sciences. Identification of wheat genotypes based on simultaneous selection among contributing traits will improve grain yield. Stable and promising genotypes may be included in breeding program aimed to develop salt tolerant varieties at state and national level to ensure nutritional food security.
Physio-Chemical Changes during Ethrel Treatment of Mango cv. Alphonso under Different Temperature Regimes
Authors: Ranjhani R. , Kavitha P. S. , Muthuvel I. , Kalarani M. K. , Shanmugasundaram K. A. , Gurusamy K. 
Published: August 2023

Aim: Mango (Mangifera indica L.) is the second most consumed fruit which belongs to the family Anacardiaceae. Ripening in mango (climacteric fruit) is hastened by application of ethrel. The experiment was conducted to study the effect of different temperatures during ethrel treatment on shelf life and quality of mango cv. Alphonso.
Study Design: The experiment consisted of three treatments and seven replications laid out in Completely randomized design (CRD).
Place and Duration of Study: The study was conducted at Department of Fruit Science, Horticulture College and research Institute, Tamil Nadu Agricultural University, Coimbatore during 2022-2023.
Methodology: Mango cv. Alphonso was subjected to ethrel treatment in three different ripening chambers having different temperatures viz., T1 – silpaulin chamber (33°C), T2 – zero energy cool chamber (26°C), T3 – cold chamber (22°C) for a period of 24 hours. After ethylene treatment, the fruits were stored at ambient temperature to study the ripening behaviour. Shelf life and quality parameters were observed and recorded.
Results: The days taken for ripening was lesser (6 days) and the rate of conversion of quality attributes were higher in fruits subjected to ethrel treatment in silpaulin chamber. The quality attributes like TSS (22°Brix), acidity (0.25 %), TSS : acid ratio (88) were significantly higher in fruits treated in silpaulin chamber on the day of ripening. The physiological loss in weight was found to be significantly lesser in fruits subjected to ethylene treatment in cold chamber (6.56 %) and were on par with fruits treated in zero energy cool chamber (6.71%) whereas the firmness and shelf life were found to be significantly higher in cold chamber treated fruits (2.35 N, 15 days respectively) but firmness was on par with fruits subjected to ethylene treatment in zero energy cool chamber (2.21 N) on ripening. The overall acceptability of fruits in sensory evaluations was significantly higher in fruits treated in zero energy cool chamber (8.3) which was on par with fruits treated in cold chamber (8.1).
Conclusion: The fruits treated in silpaulin chamber had better TSS, acidity and TSS: acid blend. The fruits treated in cold chamber were superior in shelf life and sensory score which was also on par with fruits treated in zero energy cool chamber. Hence zero energy cool chamber can be used as an alternative to cold chamber for ethrel treatment which would be cost effective, environment friendly and can be used by small traders and farmers.
Effect of Micrometeorological Parameters on Growth and Yield of Brinjal (Solanum melongena L.) under Different Planting Windows
Authors: Katkar M. G. , Kharbade S. B. , Wankhede S. Y. , Shaikh A. A. , Sthool V. A. 
Published: August 2023

An experiment was carried out at Faculty of Agriculture Department of Agricultural Meteorology Farm, Centre for Advanced Agricultural Meteorology, College of Agriculture, Pune during Kharif seasons of 2014 and 2015.The experiment was laid out in split plot design with three replications. The treatment comprised of three brinjal hybrids viz.,V1:Phule Arjun, V2: Krishna, V3: Panchganaga as main plot and four planting windows viz., P1: 31st MW (30 July-5 August), P2: 32ndMW (6-12August), P3:33rdMW (13-19 August) and P4: 34thMW (20-26 August) as sub plot treatments. In micrometeorological studies of the higher radiation absorptions and lower reflection was absorbed under hy. Phule Arjun as compared to hy. Krishana and hy Panchganga. The maximum Incident PAR (1270 u mol m-2s-1) Intercepted PAR (86.47u mol m-2s-1),Absorbed PAR (1094.4u mol m-2s-1) and Radiation use efficiency (2.43gmMJ m-2) was observed in hy .Phule Arjun. Cumulative GDD, HTU and PTU at the end of each growth stages showed that numerically higher requirement was observed in hy. Phule Arjun over hy. Krishana and hy. Panchganaga hybrids during both year 2014 and 2015 experimentation period. Whereas, the lowest canopy temperature was found in hy. Phule Arjun (29.0 0C) than rest of the brinjal hybrids. Canopy reflected PAR and transmitted PAR was higher in (191.54 and 188.62 µ mol m-2s-1) Panchganaga hybrids among the brinjal hybrids.