bluuebunny/crossref_metadata_2025_split huggingface dataset:
Parameters of finger stalk lifter cut branches in intensive gardens
Authors: Shoumarova Muxayyo , Abdillaev Tulegen , Berdimuratov Parakhat , Jakhongirov Daurbek , Tadjimuratova Aziza 
Published: August 2023

In Uzbekistan, the areas of intensive orchards are expanding, in which branches are regularly pruned according to agrotechnical rules.
In intensive orchards, the number of fruit trees is usually greater, so cut branches occupy most of the row-spacing area. They interfere with many operations, so they must be removed. Usually, this work is done manually. True, some rakes collect cut branches and take them out of the field. The parameters of existing rakes do not always meet the requirements, so the authors proposed a branch pick-up that works satisfactorily. This article provides a rationale for its kinematic parameters. This branch pick-up also allows you to pick up short-cut branches in intensive orchards.
Technologies to reduce water waste during land leaching and cultivation of industrial crops
Authors: Begmatov Ilkhom , Khajiyev Masharif 
Published: August 2023

More than half of Uzbekistan's irrigated land is saline to some degree. The drying up of the Aral Sea has intensified this process. For many years, chronic salt storms in the northern part of the country have sprayed large quantities of salt onto agricultural land, leading to increased salinization. These processes cause the water required to flush saline soils year after year.
The problem is exacerbated by water shortages worldwide, including in Central Asia. This requires the leaching of saline soils and a multiplication of the water used in crop cultivation. Therefore, alternative use of water resources in our country is one of the most important issues for agriculture. The introduction of salt leaching and cultivation in farms based on outdated technologies and the low efficiency of new technologies (bio-solvent washing, etc.) in the production of new salt leaching and cultivation remain a negative obstacle for the economic development of farms and the country as a whole.
The analysis shows that in our country, billions of cubic meters of water are used to flush saline soils and cultivate agricultural crops. Still, only 60% of this water reaches the fields where crops are grown, while the rest of it disappears into the irrigation systems and irrigation processes (canals, ditches, and branch lines).
When providing water resources for soil salinization and cultivation using trapezoidal canals, part of the water flowing through them dissolves and filters the mineral and organic fertilizers in the soil due to air pressure and gravity; as a result, up to 30% of water is lost (wasted). In this paper, the water resources for soil washing and crop cultivation are replaced by a parabolic excavator with a trapezoidal boom, designed to save up to 30% of water resources.
Synthesis of superplasticizer for concrete mixtures based on naphthalene
Authors: Kenjaev Akmal , Nurmonov Suvonqul , Kodirov Orifjon 
Published: August 2023

In subsequent years the construction industry in our country is developing very rapidly. Accordingly, the requirements for the rational and efficient use of raw materials and energy resources in building materials are also increased. To effectively solve the problem of developing prefabricated, monolithic concrete and reinforced concrete structures with high strength and durability of concrete mixtures, and special chemical additives, the widespread use of superplasticizers is required. In particular, obtaining such products based on industrial secondary raw materials is more important.
Pyrolysis of hydrocarbon raw materials is the main method for obtaining low molecular mass olefins, mainly ethylene, propylene, and acetylene. The increasing production of ethylene and propylene has also led to increasing by-products generated in this process. A large amount of pyrolysis oil as a by-product is also obtained at pyrolysis. During the investigation, a naphthalene fraction was isolated from this product, and on its basis, a synthesis of superplasticizer for concrete mixtures was carried out.
Development of wastewater treatment technology with purpose of their reuse in process of obtaining cotton pulp
Authors: Sayfutdinov Ramziddin , Mirsaidova Kamila , Mirkamilov Shuxrat , Gullieva Yulduzkhon , Usmankhodzhaeva Iroda 
Published: August 2023

Today, an urgent problem is developing a technology for producing cotton cellulose from low-grade linters with the rational use of water resources. This issue is especially relevant for the Republics of Central Asia.
Also, the development of a technology for the production of cotton pulp would provide an acute shortage of pulp and paper, protect the environment, reduce energy costs, reduce water and chemical costs, and rationally use available raw materials.
The paper presents the results of studies on the possibility of cleaning waste liquor and wash water for reuse in obtaining cotton cellulose. The object of the study is the cooking solution, spent liquor, used water after pulping and washing, their sanitary characteristics, and the quality indicators of the products obtained.
The discoloration of wastewater, the residual amount of sodium hydroxide, the change in the optical density of the cooking solution, and the chemical composition of the waste liquor and washing water after discoloration were experimentally studied.
Efficient reception of introducing basalt fiber in cement matrix of fiber concrete
Authors: Mukhamataliyev Irkin , Ruzmetov Fazliddin , Khudoyorov Azamat , Uzakov Sherbek 
Published: August 2023

The article is devoted to solving the problem of the distribution of basalt fiber in the environment of the filled cement paste and the total volume of basalt fiber-reinforced concrete, which is one of the most important in the preparation of basalt fiber-reinforced concrete. This article presents the results of experimental studies to establish the most effective technological method of introducing basalt fiber into the cement matrix of the composite from the point of view of increasing the strength characteristics of fiber-reinforced concrete. In the experimental studies performed, standardized methods for the study of cement paste and stone were used. As a result of the research, graphical dependences of the strength and water demand of a dispersed-reinforced cement stone on introducing basalt fiber into the composite and the quantitative content of basalt fiber in the composite were obtained.
The analysis of the obtained results made it possible to establish that of the various methods for introducing basalt fiber into the cement matrix of basalt fiber-reinforced concrete, the most effective in terms of increasing the strength of the composite material, provided that the water demand of the fiber-reinforced concrete mixture remains unchanged, is preliminary dry mixing of cement with basalt fiber in a spring mill. The most favorable environment for the mechanical activation of basalt fiber in a spring mill has also been established, which makes it possible to achieve high rates in terms of the preservation of basalt fiber during joint grinding. The scientific novelty of the performed research lies in the fact that the issue of studying the distribution of basalt fiber was first studied at the level of the microstructure of basalt fiber-reinforced concrete.
Investigation of heat exchange processes in the lining of induction furnaces
Authors: Tursunov Tokhir , Tursunov Nodirjon , Urazbayev Talgat 
Published: August 2023

This paper discusses scientific research in the direction of energy saving and the efficiency of heat transfer processes. In this direction, in particular, in the optimization of the design and modernization of heat exchange processes, as well as in the development of energy and resource-saving technologies, it is necessary to reconsider the lining thickness of induction melting furnaces.
The research on the optimization the thickness of the lining, consists of thermodynamic and thermal processes taking place in the liquid metal bath and on the boundaries of the refractory layer of the lining. The power of heat loss through the lining of a cylindrical wall is complex heat transfer under boundary conditions of the first and third kind. Beside that the active power lost in the inductor, the power released in the metal and useful power are calculated. This has resulted in an adjustment to the overall efficiency calculation, which includes thermal efficiency and electrical efficiency.
On the basis of thermal and electrical calculations for ICF-6 LMZ with a capacity of 6 tons, the rational thickness of the lining of the crucible wall is equal to δφ = 0.115 … 0.120 mm, which corresponds to the relation Dvt/Dm = 1.23 … 1.26.
Anode behavior of aluminum alloy AB1 with magnesium
Authors: Kurbonova M. Z. , Emomov I. A. , Rakhimova N. T. , Ganiev I. N. , Kurbonova D. A. , Norkulov U. M. 
Published: August 2023

In modern technology, the main advantages of aluminum alloys as structural materials are lightness, pliability to stamping, corrosion resistance (in air, aluminum is instantly covered with a strong film of Al2O3, which prevents its further oxidation), high thermal conductivity, and non-toxicity of its compounds. These properties have made aluminum alloys the main raw material in the aviation and aerospace industries and, more recently, as a composite material. Regarding specific strength (the ratio of ultimate strength to density), aluminum alloys are significantly superior to steel.
Therefore, in the article, the electrochemical properties of the aluminum alloy AB1 with magnesium in the NaCl electrolyte medium were studied by the potentiodynamic method with a potential sweep rate of 2 mV / s. It is shown that alloying the AB1 alloy with magnesium up to 1.0 wt.% Increases its anodic stability by 30% in the NaCl electrolyte environment. It was found that with an increase in the concentration of chloride - ion, the corrosion rate of alloys increases, and the potentials of free corrosion, pitting formation, and repassivation of alloys decrease. An increase in the content of the alloying component shifts the indicated potentials to the positive region.
Fabrication and characterization of RF magnetron sputtered composite MoS2 and ZrN coatings on Ti3SiC2 max phase for space applications
Authors: Wani M. F. , Ziyamukhamedova U. , Mufti Taseer A. , Saleem Sheikh S. , Sehgal Rakesh 
Published: August 2023

The lubrication effect of solid-based materials has been recognized for centuries, but their use as lubricants dates back to only about 50 years. Solid lubricants are used in applications where parts operate under severe operating conditions such as extreme temperatures and very high vacuum. Solid lubricants replace liquid based lubricants for operation under extreme environmental conditions that are beyond the capability of a liquid-based lubricant such as high or very high vacuum, high and cryogenic temperatures, radiation, corrosive gases, and fretting wear. Applications such as space mechanisms, satellites, space vehicles, turbopumps, nuclear reactors, refrigeration plants, etc are examples of such operating conditions.
In this research, nano scale composite coatings of MoS2with varied proportions of ZrN (5%, 10% and 20%) were deposited on Ti3SiC2 Max phase substrate using Physical Vapour Deposition (PVD). The PVD technique used was the RF magnetron sputtering process. Material characterization was carried out using Field Emission Scanning Electron Microscope (FESEM) Spectroscopy and Energy Dispersive X-Ray Spectroscopy (EDS). Addition of ZrNis observed to reduce the porosity of the self-lubricating MoS2 coating.
Online-Schmerzedukation verstärkt die positiven Auswirkungen
eines Online-Trainingsprogramms gegen Rückenschmerzen
Authors: Ayensa Jennifer Sion , Schifferdecker-Hoch Frank , Hollmann Michael 
Published: August 2023

ZusammenfassungDigitale Angebote im Gesundheitsbereich werden oft von vielen Seiten kritisch
gesehen. Dennoch bieten sie zunehmend Vorteile. Übungsprogramme gegen
Rückenschmerzen werden bereits in verschiedenen Formen digital
angeboten. Der biospsychosoziale Ansatz in der Rückenschmerztherapie
einschließlich der Schmerzerziehung erfordert jedoch weitere
Maßnahmen. In der vorliegenden randomisiert-kontrollierten Studie wurde
daher ein 5-wöchiges Kurztrainingsprogramm durch ein digitales
Schmerzbildungsprogramm ergänzt. Während die Kontrollgruppe
(n=50) nur das Übungsprogramm erhielt, nahm die
Interventionsgruppe (n=29) auch an dem Schulungsprogramm teil. Die
Ergebnisse zeigen einen deutlichen Zusatznutzen des zusätzlichen
Schmerzwissens. Schmerzintensität (p=0,036),
Schmerzregelmäßigkeit (p=0,050) und Kinesiophobie
(p=0,014) verbesserten sich in der Interventionsgruppe signifikant
stärker als in der Kontrollgruppe. Somit zeigen die Ergebnisse positive
Zusatzeffekte der digitalen Schulungsmaßnahme. Die Kombination der
beiden digitalen Therapiemodule eröffnet somit neue
Möglichkeiten für eine standardisierte evidenzbasierte Therapie
auf biopsychosozialer Ebene.
Deceptive Presentation of Low-Grade Lymphoma with Grade 3 Marrow Fibrosis and Aplasia: Diagnostic and Clinical Considerations
Authors: Singh Suvir , Sharma Rintu , Singh Jagdeep , Paul Preethi 
Published: August 2023

AbstractBone marrow fibrosis with lymphoproliferative disorders is rare with the exception of hairy cell leukemia and nodular sclerosis Hodgkin's lymphoma. We report the case of a 63-year-old gentleman with indolent B-cell lymphoma presenting with myelofibrosis and aplasia. He was evaluated for pancytopenia with no organomegaly or lymphadenopathy. Bone marrow aspiration was a dry tap and biopsy revealed a hypocellular marrow with a cellularity of 10 to 20% with absent megakaryocytes and grade 2 to 3 reticulin fibrosis. Myeloproliferative neoplasms were ruled out based on morphology and absence of myeloid mutations on next-generation sequencing. Further sections revealed interstitial infiltrates of lymphoid cells with round, clumped chromatin and inconspicuous nucleoli, which on immunohistochemistry (IHC) were positive for CD20 and BCL2, and negative for CD5, CD10, BCL6, annexin A1, cyclin D1, and TdT. The final diagnosis was thus confirmed as CD5-negative low-grade B-cell lymphoma and he was initiated on therapy with a combination of Bendamustine and Rituximab. He had resolution of symptoms and cytopenia after six cycles of the same. Presence of significant myelofibrosis on the background of a hypocellular marrow can mimic several subtypes of myeloproliferative neoplasms or myelodysplastic syndromes, providing a diagnostic challenge. IHC is essential in determining the exact subtype to decide further therapy. Based on literature search, only a handful of patients with this presentation have been described and this case will be a valuable addition to the same.
A perspective from Turkey on construction of the new digital world: analysis of emotions and future expectations regarding Metaverse on Twitter
Authors: Hasgül Ergün , Karataş Mustafa , Pak Güre Merve Deniz , Duyan Veli 
Published: August 2023

AbstractMetaverse is a new digital world where the real and virtual worlds merge on a technological ground. After Mark Zuckerberg, CEO of Facebook hyped the metaverse, attention was drawn to it all over the world. In Turkey, the Metaverse was hyped in the “Teke Tek Bilim” program and Twitter users shared their views for days afterwards. This study aims to analyse Twitter users’ feelings about the Metaverse and their expectations for the future. The 10,437 tweets shared in Turkey between 10 January 2022 and 17 January 2022 with the hashtag Metaverse were analyzed using sentiment analysis techniques. The findings of the study indicate the metaverse will increase technological investments, new services, products, and markets will emerge, it may lead to irregularities in ethical codes and rules, society may be unready for technological developments, and media addiction may occur.
Excited dipole bound electronic states of potassium iodide anions: A theoretical perspective
Authors: Lian Yi , Xiao Lidan , Li Lulu , Bian Lili , Xu Haifeng , Yan Bing 
Published: August 2023

The information about electronic excited states of molecular anions is of pivotal importance for understanding electron attachment/detachment processes. Here, we present a high-level theoretical study on electronic states of potassium iodide anions (KI−). By the evaluation of different basis sets, we present accurate spectroscopic constants of the anionic ground electronic state using the multireference configuration interaction with Davidson correction method. The equation-of-motion electron-attachment coupled-cluster singles and doubles method is carried out to calculate electron binding energies (EBEs) of electronic states. With the addition of different s-/p-/d-diffusion functions in the basis set, we have identified possible excited dipole bound states (DBSs) of KI−. The results indicate that, owing to the large dipole moment of KI molecules, the anions can hold three excited DBSs, i.e., two σ-type DBSs and one π-type DBS, with the EBEs of 39 meV (σ-DBS1), 4.7 meV (π-DBS), and only 1.8 meV (σ-DBS2) below the neutral ground state. Molecular orbitals, potential energy curves, and spectroscopic constants of DBSs are presented. Our study would shed some light on the electronic states of potassium iodide molecular anions.
Ammonia volatilisation losses from urea applied to acidic cropping soils is regulated by pH buffering capacity
Authors: Hearn L. O. , Barton L. , Schwenke G. D. , Murphy D. V. 
Published: August 2023

Context Ammonia (NH3) volatilisation can be a significant nitrogen (N) loss pathway in the grains industry following the surface broadcast application of urea. However, the extent of urea volatilisation from acidic soils and the soil properties that regulate this N loss pathway have not been investigated widely. Aims We conducted a laboratory incubation experiment to measure NH3 volatilisation loss potential following the broadcast application of urea prills (1–2 mm diameter; 50 kg N ha−1) onto moistened acidic and neutral cropping soils, sampled from four long-term cropping research sites. Methods The selected soils varied in pH, clay content, organic carbon, pH buffering capacity (pHBC) and cation exchange capacity. Volatilised NH3 was captured in a phosphoric acid trap after 7, 14 and 21 days and then measured using colorimetric analysis. We compared the measured NH3 losses with predicted NH3 losses derived from an existing empirical NH3 volatilisation prediction model. Key results Of the applied urea-N, 0.9–25% was volatilised. Cumulative NH3 losses were strongly related (R2 = 0.77) with soil pHBC derived from a pedotransfer function. The existing NH3 loss model generally had poor predictive capacity (RMSE = 34%). Conclusions Using clay content as a surrogate variable for pHBC in the predictive model for sandy kaolinitic soils where it is largely a function of organic carbon content can cause poor estimates of NH3 volatilisation loss potential. Implications Grain production on sandy, acidic soils with low pHBC could lead to substantial NH3 volatilisation losses if urea is broadcast.
Coulomb staircase in an asymmetrically coupled quantum dot
Authors: McArdle G , Davies R , Lerner I V , Yurkevich I V 
Published: August 2023

Abstract
We investigate the Coulomb blockade in quantum dots asymmetrically coupled to the leads for an arbitrary voltage bias focusing on the regime where electrons do not thermalise during their dwell time in the dot. By solving the quantum kinetic equation, we show that the current–voltage characteristics are crucially dependent on the ratio of the Fermi energy to charging energy on the dot. In the standard regime when the Fermi energy is large, there is a Coulomb staircase which is practically the same as in the thermalised regime. In the opposite case of the large charging energy, we identify a new regime in which only one step is left in the staircase, and we anticipate experimental confirmation of this finding.
Assesment of Drinking and Irrigation Groundwater Quality Analysing in Sasti Coal Mines and Sasti Village Rajura Tahsil Chandrapur District State Maharashtra India
Authors: Karmore Jaishree , Charpe P.S 
Published: August 2023

Abstract
The groundwater sample determine by 10 different location in sasti village and coal mines area. Tahsil Rajura District Chandrapur State Maharashtra India. There are main source of irrigation and drinking water. We collected bore hole and hand pump sample from 10 different location for analysing groundwater quality. Using some parameters like Total dissolve salt, pH, temperature, Hardness, Acidity, Alkalinity, CO2, chloride, calcium, Sulphate, fluoride, with concentration. This all Borehole and hand pump both are use in daily routine of drinking and irrigation purpose by human being. The result compared with the BIS Bureau of Indian standard (2012) WHO and CPCB, APHA (1998). Water quality result indicated considerable changes in physic-chemical parameters. Hydro-geological impact also responsible to causes of ground water. These is very critical for human being and critical to have an essential comprehension of the ongoing contamination status in different location in this area. Found high concentration of fluoride and other parameters in analyzing result.
Seismic performance of high rise building having a shear wall with opening and without opening
Authors: Harne V.R. , Hande Radhika 
Published: August 2023

Abstract
Engineers are primarily interested in determining how a structure will behave when subjected to horizontal forces, and high-rise buildings need to be sufficiently stiff to withstand the horizontal forces produced by earthquakes. Shear walls are added to the inside of the planned building in order to resist the horizontal forces, or lateral loads, produced by earthquakes and to increase the structure’s rigidity. Shear walls may have one or more functional openings, such as doors, windows, and other types of openings. The size and location of openings can vary depending on their purpose. The size and location of shear walls are critical. This study uses Response Spectrum Analysis to investigate the nature of the earthquake-exposed structure and the placement of Shear walls within a G+ 10 multi-story residential building. The storey drift, storey shear, maximum permissible displacement, and stiffness of the multi-story building with G + 10 are all examined. In accordance with IS 1893 (Part-1) 2016, the study and modelling of the entire structure are carried out for seismic zone V using the well-known FEM integrated programme Etabs. In this project, the dynamic analysis is performed on medium soil for an irregular structure. It is concluded that the structure with shear walls will show better results in terms of all the seismic parameters when compared with the structures without a shear wall and shear walls with openings.