bluuebunny/crossref_metadata_2025_split huggingface dataset:
Calculation of specific rates of the electric energy consumption at frequency regulation of electric drives: A case study of pumping stations
Authors: Kamalov T , Isakov A , Shavazov A , Elmuratova A , Tukhtamishev B 
Published: December 2021

Abstract
The issues of developing a methodology for calculating the specific rates of electrical energy consumption during frequency regulation of electric drives of pumping stations are considered. When calculating specific consumption rates, experimental studies were carried out at the Chirchik pumping station. When developing the methodology, technological, design parameters, water consumption, as well as the total capacity of pumping units based on frequency-controlled electric drives are taken into account. At the same time, the characteristics of the main parameters that must be taken into account when choosing variable frequency drives for pumping units are determined.
Hydrolysis of wheat straw hemicelluloses for maximum xylose extraction
Authors: Makhatov Zh , Yelemanova Zh , Aitkulova R , Narymbayeva Z , Dairabayeva A , Doltayeva B , Torlanova B , Arystanbaev K 
Published: December 2021

Abstract
The aim of the study is to select reaction conditions for hydrolysis of wheat straw with dilute sulfuric acid for maximum xylose extraction under mild conditions (at atmospheric pressure and temperature of 100°C). The authors found that maximum glucose yield (72.4-77.1 weight % of the initial content of hemicelluloses in wheat straw) is achieved at a concentration of H2SO4 2-3 weight % and the hydrolysis process duration of 5 hours. Analysis of the obtained hydrolysates showed that they contain cellulose (56.8-70.4 weight %), lignin (19.8-28.8 weight %) and hemicelluloses (2.8-15.3 weight %).
Major trends characterizing solar energy development in Uzbekistan
Authors: Mirzabaev A , Isakov A , Soliev O , Makhkamova M , Kodirov D 
Published: December 2021

Abstract
This paper examines the main trends in the development of solar energy in Uzbekistan. It also describes various schemes for powering deep-water pumps using PV power plants and analyzes the payback period of small autonomous (off-grid) solar systems.
Assessment of the impact of the main technological characteristics of wells on the power consumption of pumps
Authors: Khushiev S , Ishnazarov O , Izzatillaev J , Juraev S , Karakulov Sh 
Published: December 2021

Abstract
The issue of assessing the impact of the main technological characteristics of wells on the power consumption of pumps is one of the important issues. Based on the analysis of the data obtained in the article, the electric energy consumption of the well pump device the rotational speed of the pump (co); the density of the solution (liquid) (p); the pressure generated by the pump (H); the performance of the pump aggregate (q); depth of the well (H); hydrodynamic resistance (dp); Also, on the basis of the STATISTICA program, the calculation work is carried out, the binding function of the pumps is determined to what extent the factor affects the electricity consumption, and is described in the Pareto diagram.
Development of a laboratory nozzle chamber installation for the humidification of buildings
Authors: Isakhodjayev Kh , Mukhtarov F , Kodirov D , Toshpulatov I 
Published: December 2021

Abstract
The nozzle chamber, in which water is sprayed into the air stream using mechanical nozzles, is the main unit for these processes in central air conditioning systems (AHUs). The types of nozzles used do not have a sufficiently high effect of interfacial surface forming due to increased metal usage and the broad total dimensions of certain chambers, i.e., they do not have intensive heat and mass transfer. The authors performed testing of the apparatus in the direct iso-enthalpic air cooling mode to improve the performance of the nozzle chamber. Thus, the experiments conducted confirm the relatively high efficiency of FET operation at small values of irrigation coefficient B ≥ 1.0. The area highlighted is characterised by the unstable operation of other nozzle types. Therefore, FET nozzles can be operated at irrigation factor values B = 0.1…1.0. Experiments have shown that this equation is applicable for practical calculations, with a relative error of ±6.7%. The aerodynamic resistance of the spray chamber nozzle chambers is also according to the data not exceeding 160 Pa.
Modeling and simulation of water levels control in open canals using Simulink
Authors: Baratov R , Bon T , Chulliyev Y , Shoyimov Yu , Abdullayev M 
Published: December 2021

Abstract
This paper discusses the question of modeling and simulation of water levels control in open canals as a key decition of water and energy resources scarsity in the vegetation period of agricultural irrigation. The mathematical model of the water levels control in open canals is developed and the outcomes are evaluated using by Matlab’s tool Simulink. In addition, the paper proposes that the pivot weir or overshot gate for water levels control in open canals is simple in terms of precise and quality control of the upstream and downstream water levels control. Then dynamic equation of control object that describes dynamic state of the water levels control was obtained. A functional diagram has been developed and PID control was applied for the water levels control in the open canals. PID control was applied for the water levels control in the open canals to know how faster response the object to disturbance. Based on functional diagram the model of the system was built in Simulink environment and obtained the dynamic response.
Justification of prospective pistachio (pistacia vera l.) varieties and forms while creating plantations in Uzbekistan
Authors: Kayimov A , Kholmurotov M Z , Eshankulov B I 
Published: December 2021

Abstract
This article presents the results of research on the study of the qualitative properties of the fruits of selected promising pistachio forms. When creating pistachio plantations, it is recommended to use varieties with different periods of flowering and fruit ripening. This arrangement reduces the likelihood of damage to the pistachio flowers by spring frosts, increases the chances of pollination and ensures that the harvest is carried out in stages. For the creation of plantations in forestry, promising forms 518-G, 521-G, 527-SH, 528-G, 52-RG, 21-SH and 59-G are recommended as the most productive, large-fruited and resistant to adverse environmental factors, and also pests.
Several features of growing Colchicum autumnale l. in the urban environment of Tashkent-Uzbekistan
Authors: Kaysarov V T , Akhmedov E T 
Published: December 2021

Abstract
For the first time, the collection of autumn colchicum was created at the experimental field site of the Tashkent State Agrarian University. In this paper, the issues of growing conditions for the growth and development of Colchicum autumnale l plant were deeply studied and investigated. It was revealed that the Colchicum autumnale l growth and development largely depend on the size of the corm and the type of soil conditions.
Efficiency of choosing promising walnut forms in the case of Uzbekistan
Authors: Hamroev H F , Mashrapov KH T , Shaymatov O A , Tulaev D B 
Published: December 2021

Abstract
Walnut (Juglans regia L) is one of the most important tree species in Uzbekistan. Natural walnuts have a valuable gene pool, among which there are many forms with different bioecological properties. In particular, biodiversity in terms of kernel quality is highly variable within the species. This article provides information on the analysis of quality indicators of walnut kernels in natural and local nuts. Among the indicators of kernel quality in the selected forms, the yield of walnut kernels was of high importance as the main indicator, and in the selected forms this indicator was 38.2-63.3. According to international indicators, Parkent-2, Boysun-1 and Humson-5 forms are recommended for wide use, given that the form with a yield rate of more than 50% is promising.
Analysis of external features and live weight of woolly-meaty sheep (ovis aries)
Authors: Shoyusupov B B , Ruzibayev N R , Soatov U R , Shoymurodov N T 
Published: December 2021

Abstract
This article addressed the development and the growth of offspring, the external characteristics and the productivity at different breeding periods of woolly-meaty sheep of Uzbekistan. It was observed that wool productivity was higher in sheep rich in wool-meat than ordinary sheep; sheared wool was 1.26 kg (49.6%), after washing it was 0.97 kg (67.8%), wool length was 2.13 (19.2%) higher. Live weights of lambs from ewes in the experimental groups were determined at birth, at 30 days of age, and 3 months of age. From September 1 to September 20 of the year, the live weight, body size and wool productivity of early inseminated ewes were higher than those of inseminated ewes from late October to November 10. The live weight of lambs obtained from artificially inseminated sheep with frozen semen of typical rams in world gene pool considered semi-fine wool in the meat-wool direction was higher than sheep naturally inseminated with pedigree rams. Accordingly, it was heavier by 00.4 kg (9.3%) at the first day of birth, followed by 0.5 kg (6.8%) at 10 days, and 0.4 kg (1.3%) at 3 months of age.
Study on the influence of the cotton storage process on the quality indicators of fiber and yarn
Authors: Jumaniyazov Q , Ismatova M , Abbazov I , Kazakova D 
Published: December 2021

AbstractThis article defines fiber quality indicators that differ in laboratory conditions from the upper, middle and lower layers of Bukhara-6 breeding varieties of cotton, in the modern system HVI 1000 SA. Based on the results of the study, histograms of changes in the quality of cotton fiber in the layers of the harem are presented. As an alternative, the quality indicators of yarn obtained in the laboratory spinning device “Sherli” of small size from fiber were determined. As can be seen from the analysis of the test results, it was found that the comparative elongation strength of cotton obtained from the lower layer of the stack, the upper average length, elongation at break, the light output coefficient, decreased compared to other layers of the stack, on the contrary, the index of hip fibers, increased, decreased compared to other layers of the stack. In addition, according to the results of the tests obtained, the fiber viscosity index was obtained – the correlation between the properties of fibers and the properties of yarn, the thread viscosity index was estimated by the CSP (COUNT STRENGTH PRODUKT) coefficient, which was determined by the formula for carded yarn obtained in the laboratory spinning device “Sherli” from fiber stored in the refrigerator. The obtained results showed that the relationship between fiber properties and yarn properties due to the fact that the maturity index of a thread is at the top of the stack compared to the middle and lower part of the stack.
The influence of planting schemes, norms and inoculants on the yield of new soybean varieties
Authors: Kuldashov B , Khalilova L , Khalilov N , Khamzayev A 
Published: December 2021

Abstract
In this article, data about the new native variety of Nafis and variety of Selekta-302 is described which was brought from Krasnodar region of the Russian Federation in the conditions of irrigated meadow-gray soils of Samarkand region, seed germination in field conditions, storage, growth, development, productivity, yield composition, the optimal planting schemes, norms have been identified and recommended for implementation. In the second experiment, in the conditions of irrigated meadow-gray soils, local Nafis variety and Selekta-302 variety of Krasnodar regions included in the State Register, imported strains of Bradyrhizobium japonica endogenous bacteria produced in our republic and aboriginal populations bacterium present in local soil. The results of the study on the effect of inoculants studied and their effect on plant development, the number and weight dynamics of stems formed in plant roots, crop structure, yield, weight of 1000 seeds, as well as their effectiveness are described.
Study on the breeding ginkgo (ginkgo biloba l.) in Tashkent oasis
Authors: Gafurdjanov B , Berdiev E , Xoliyorov U 
Published: December 2021

AbstractThis article presents the results of research on the biochemical composition of green and yellowing leaves of 64-year-old bipedal ginkgo (Ginkgo biloba L.) seed and pollen trees growing in the Botanical Garden of the Academy of Sciences of Uzbekistan, introduced to Uzbekistan in the last century. Biochemical analyzes recorded the presence of 6 types of vitamins and 44 macro- and micronutrients in the leaves of the ginkgo tree. Vitamin C levels were found to be lower in the seed tree than in the pollen tree. The amount was 35.8 mg/% in the green leaves of the seed tree and 34.4 mg/% in the yellowed leaves. Ginkgo leaves contain important macro-and micronutrients such as Ca, Mg, K, Al, Fe, Cu, Mn, Zn, Mo, Co, I, Se, which are necessary for the vital activity of the human body and normal metabolism. The green leaves of the two-leafed ginkgo pollen tree contained 27577.288 mg/l of calcium, 11562.299 mg/l of potassium, the leaves of the seed tree 13912.903 mg/l of calcium and 7491.462 mg/l of potassium. At the same time, the green leaves of ginkgo contain 3073.807 mg/l – 7977.459 mg/l magnesium, 4353.72-5003.88 mg/l phosphorus, 501.073-515.343 mg/l sodium, 779.750 mg/l– the presence of silicon in the amount of 844.039 mg/l and iron in the amount of 373.023 mg/l – 655.148 mg/l was determined.
Chemical Composition and Antioxidant Activities of Extracts of Combretum quadrangulare Kurz Leaves Grown in An Giang Province, Vietnam
Authors: Ngoc Q N , Minh T N , Van M L , Ph Hoang D , Trung Th N 
Published: December 2021

Abstract

Combretum quadrangulare leaves are an important herbal in traditional Vietnamese medicine due to their ability to cure various diseases and improve health. This study provided the investigation results of different organic solvents that affected the chemical composition, the extraction of polyphenol and flavonoid content, the antioxidant activity of Combretum quadrangulare extract obtained through the maceration method. Several classes of constituents in the extract of Combretum quadrangulare leaves were detected including flavonoids, volatile oils, tannins, etc. The ethanol extract had the highest polyphenol content found at 18.45 ± 0.12 mg GAE/g extract. The diethyl ether leaves extract observed the highest falonoid with a value of 21.19 ± 0.05 mg QE/g in. The antioxidant activities were shown through the IC50 values of 1514.50 ± 25.65 µg/ml (DPPH) and 685.15 ± 8.58 µg/ml (ABTS), individually.
Study on the development of a machine to prepare the soil for cotton sowing on ridges
Authors: Mamatov F , Mirzaev B , Toshtemirov S , Hamroyev O , Razzaqov T , Avazov I 
Published: December 2021

Abstract
The aim of this paper is to create a combined machine for planning the soil for sowing cotton on the edges. A total for the execution of the innovation of planning the soil for sowing cotton on the edges was developed, which comprises of a dump deep-dredger with a slanted rack and a comb-maker. The essential standards and strategies of classical mechanics, numerical examination and measurements were utilized in this paper. The plan conspire of the combined unit is advocated. The following results were obtained from the outcomes of multivariate tests set up: the width of the ripper within the extend of 10.5-11.03 cm, the disintegrating point of 27°, the point of establishment of the plowshare edge to the heading of movement of 31°. The arrangement of edges of the desired degree with negligible vitality utilization is given with a width and length of the deep-dredger bit, separately, of 5 and 20 cm, edge hold width of 21 cm, the length of its wing within the run of 47-49 cm, and a least longitudinal.
Study on the development of improved routing technology of CC-15A cotton separator
Authors: Khodjiev M T , Eshmurodov D D , Ortiqova D A 
Published: December 2021

Abstract
The present article examines the existing problems in pneumo-transporters. It also presents advantages of the proposed improved model and the results of research on the Uster HVI 1000 laboratory equipment with high average length, uniformity index in length, short fiber index. The ability to maximize the natural properties of the products and significantly extend the service life of the separator design through this improved device has been proven on the basis of theoretical and practical analysis.
Scientific basis of appropriate sowing of wheat varieties on irrigated land of Uzbekistan
Authors: Makhammatova M , Ashurov M , Tursoatov S , Fayzullaev A 
Published: December 2021

Abstract
In the irrigated lands of Tashkent province, regionalized wheat varieties are usually planted at a rate of 250 kg/ha, but it would be possible to increase yields and grain quality if a scientifically based optimal sowing rate was recommended for each variety. Another opportunity to increase wheat yields in the region is the development of seed production. Numerous studies and practices have shown that it is possible to increase wheat yields by 20-25 by sowing wheat seeds. In this regard, the most pressing issue is to increase the level of seed germination. In this article, it is important to study the scientifically based sowing norms, physiological maturation of seeds, and their impact on yield and grain quality in order to take full advantage of the potential of regionalized varieties of wheat in irrigated lands. The determination of the most optimal planting norms, taking into account their biological properties, is based on research.
Effects of certain mineral fertilizers on the biological mass of Indigofera Tinctoria and Impatiens Balsamina plants
Authors: Ayasov Kh G , Akhmedov E , Khidirov S 
Published: December 2021

Abstract
The article describes the effect of mineral fertilizers on the cultivation of dyed Indigofera (Indigofera tinctoria L.) and henna (Impatiens balsamina L), the amount of their application and the ratio of basic nutrients (nitrogen, phosphorus and potassium) related. It has been established that the adequate development of Indigofera and henna plants depends on the ratio of mineral fertilizers used.
Study on knitted filled knits for fruit juice filtering
Authors: Yunusova Z G , Kh Rakhimov F , Kh Zhabiev M 
Published: December 2021

Abstract
This article discusses the essence of the formation of knitted filled filter cloths, in which the mass fraction of the filler exceeds more than 50% of the total surface density. The new method was tested in the production environment of the ‘Gani Rakhimov Ishonch’ enterprise (Samarkand) by modernizing the existing equipment, and also a pilot batch of products and final products were produced for filtering fruit juices.
Biostimulant application in the cultivation of cucumber (Cucumis sativus l.): A case study of Andijan region
Authors: Baratova M , Kosimova Sh , Bustonova S , Baratova M 
Published: December 2021

Abstract
This article describes the results of the conducted field experiment by using biostimulants “Uchkun”, “Super Uchkun”, “Gossipren” and “Verva” on cucumber varieties (Orzu) in Andijan region and the effect on the increase of productivity. It was revealed that the pre-sowing treatment of cucumber seeds with biostimulants promoted a significant increase in seed germination and growth processes. The most effective growth stimulant on Orzu cucumber was Super Uchkun. On average, the yield of cucumber when treated with biostimulants increased by 10.28%; 23.8%; 24.27% and 14.29%, respectively; while the yield increase was 1.3, 2.3, 2.7, and 0.9 t/ha, respectively.
Linking health service utilisation and mortality data—unravelling what happens after fall-related paramedic care
Authors: Mikolaizak A Stefanie , Harvey Lara , Toson Barbara , Lord Stephen R , Tiedemann Anne , Howard Kirsten , Close Jacqueline C T 
Published: December 2021

Abstract

Background
A randomised controlled trial implemented and evaluated a new model of care for non-transported older fallers to prevent future falls and unplanned health service use. This current study uses linked data to evaluate the effects of the intervention beyond the initial 12-month study period.

Method
Study data from an established cohort of 221 adults were linked to administrative data from NSW Ambulance, Emergency Department Data Collection, Admitted Patient Data Collection and Registry of Births, Deaths and Marriages evaluating health service use at 12, 24 and 36 months following randomisation including time to event (health service utilisation) and mortality. Negative binomial and Cox’s proportional hazard regression were performed to capture the impact of the study between groups and adherence status.

Results
At 36 months follow-up, 89% of participants called an ambulance, 87% attended the Emergency Department and 91% were admitted to hospital. There were no significant differences in all-cause health service utilisation between the control and intervention group (IG) at 12, 24 and 36 months follow-up. Fall-related health service use was significantly higher within the IG at 12 (IRR:1.40 (95%CI:1.01–1.94) and 24 months (IRR:1.43 (95%CI:1.05–1.95)). Medication use, impaired balance and previous falls were associated with subsequent health service use. Over 40% of participants died by the follow-up period with risk of death lower in the IG at 36 months (HR:0.64, 95%CI:0.45–0.91).

Conclusion
Non-transported fallers have a high risk of future health service use for fall and other medical-related reasons. Interventions which address this risk need to be further explored.
Anatomy of a Cyberattack: Part 2: Managing a Clinical Pathology Laboratory During 25 Days of Downtime
Authors: Goodwin Andrew , Wilburn Clayton , Wojewoda Christina , Mesec Jessica , Cacciatore Lori S , Grove Staci-Anne , Hajder Armina , Stowman Anne M 
Published: December 2021

Abstract

Objectives
Our academic health care institution was the victim of a cyberattack that led to a complete shutdown of major patient care, operational, and communication systems, including our electronic health record (EHR), laboratory information system, pharmacy, scheduling, billing and coding, imaging software, internet, hospital shared computer drives, payroll, and digital communications. The EHR remained down for 25 days, significantly affecting our clinical pathology (CP) laboratory operations.

Methods
During the downtime, our CP laboratory incorporated manual interventions for patient specimen testing, recruited additional staff for reporting results, and employed multiple communication modalities to support patient care. The crisis required a swift response, employing innovative approaches to mitigate patient harm; regular, multidisciplinary engagement; and consistent, broad-reaching communications. CP leadership worked with hospital administration, staff, and our referral clients to provide the timely laboratory results needed for acute patient care.

Results
During this downtime, the laboratory lacked accurate information about the number of patient samples diverted to other laboratories, the number of specimens processed, and the number of test results reported.

Conclusions
This paper focuses on the approaches the CP division took to develop and maintain downtime operations. Laboratories should consider these strategies in preparation for a prolonged downtime.