scholarly journals Justification of the Coefficient of Use of the Working Time of the Unit Change for Harrowing Winter Crops with Simultaneous Top Dressing

2021 ◽  
Vol 346 ◽  
pp. 03005
Author(s):  
Alexander Serguntsov ◽  
Sergey Lagoda
Keyword(s):  
Cycle Time ◽  
Working Time ◽  
Utilization Rate ◽  
Mineral Fertilizers ◽  
Unit Change ◽  
Actual Duration ◽  
Time Coefficient ◽  
Winter Crops ◽  
Number Of Cycles

The dependences of the coefficient of use of the working time of the change of the proposed multifunctional unit for harrowing winter crops with simultaneous additional fertilizing with solid mineral fertilizers are theoretically justified. In the conditions of agriculture of Krasnodar Territory, with an increase in the working speed of the unit, a significant decrease in this coefficient was found for various ruts and capacities of the fertilizer silo. For the proposed unit, all components of the cycle time spent on performing two working and two idle passes through the field with the shuttle method of movement, as well as the number of cycles per shift, the actual duration of the shift time and its utilization rate are calculated. With an increase in the working speed of the unit, all other things being equal, the value of the shift time coefficient decreases.

Logistic Performance Evaluation of Squeeze Casting Equipments Based on Simulation

2012 ◽  
Vol 468-471 ◽  
pp. 1936-1940
Author(s):  
Jian Xin Deng
Keyword(s):  
Performance Evaluation ◽  
Cycle Time ◽  
Processing Time ◽  
Squeeze Casting ◽  
Casting Machine ◽  
Utilization Rate ◽  
Production Cycle ◽  
Rate Performance ◽  
Curing Time ◽  
Simulation Results

The logistic performance of a squeeze casting equipment like production cycle time and the utilization rate of components, has impacts on the production rhythm , cast quality and it's lifecycle. So it is essential to analyze the logistic performance of squeeze casting equipments during design, buying and using. This paper deals with evaluating the logistic performance of squeeze casting equipments through simulation.Flexsim software was employed to simulate squeeze casting equipments, where the simulation model of a squeeze casting machine was constructed and the utilization rate was investigated by conducting four simulation samples of different cast products.It is indicated that simulation is an easy and effective method to evaluate the utilization rate performance of squeeze casting equipments and it is concluded that the utilization rate of all component cells except squeeze mechanism is very low and decreases with the curing time of casts increase, their value is very close to the ratio of the their processing time to each total cycle time. The simulation results can also help us find the bottleneck and optimize design of the squeeze casting equipment.

scholarly journals Ріст та розвиток гібридів соняшника залежно від густори стояння рослин

2018 ◽  
pp. 104-110
Author(s):  
С. В. Маслійов ◽  
В. В. Степанов ◽  
М. В. Калініченко ◽  
І. І. Ярчук
Keyword(s):  
Oil Content ◽  
Seed Quality ◽  
White Rot ◽  
High Yield ◽  
Mineral Fertilizers ◽  
Sowing Time ◽  
National University ◽  
Winter Crops ◽  
Treatment Application

Значне місце у вирішенні проблеми підвищення врожайності соняшнику займає удосконалення сортової агротехніки вирощування. Проведено досліди зі зміни ширини міжрядь у посівах гібридів соняшнику з 70 см до 15 см. У кожному з варіантів посіву були представлені по чотири варіанти густоти стояння рослин 70; 60; 50; 40 тис. / га. Дослідження проводилися на дослідних ділянках кафедри біології та агрономії Луганського національного університету імені Тараса Шевченка. У дослідах висаджували гібриди вітчизняної селекції Ясон, Гектор, Базальт, Сучасник. Ці гібриди охоплюють основні морфотипи і групи стиглості, найбільш поширені в колективних і фермерських господарствах. Отримані результати показали, що способи сівби мало впливали на якість насіння, але в більшості років спостерігається підвищення олійності на суцільному посіві. Згущення соняшника сприяє збільшенню олійності і зменшенню білковости насіння. Кращий за якістю насіння був гібрид Базальт. A significant place in solving the problem of increasing the yield of sunflower is taken by the improvement of the varietal agrotechnology of sunflower cultivation. The best technology of growing sunflower hybrids to obtain a high yield is described. In conditions of Luhansk region the best sunflower precursors are winter crops, corn, legumes, barley. In our case, winter wheat was a precursor of the sunflower. Recommendations for the soil treatment, application of mineral fertilizers, sowing time, seeding rates, and crop care were provided. In autumn, plowing to a depth of 25-27 cm was carried out. In the spring, in order to close the humidity by plowing, an alignment of the plow land was carried out. Due to the weak clogging with weeds, one pre-sowing cultivation was carried out to a depth of 5-6 cm. Herbicide was introduced directly before cultivation against the weeds. Hybrids resistant to: phomopsis, white rot of composite flowers, white rot of stems and downy mildew are recommended. Experiments were carried out on changing the width of the rows between the sunflower hybrids from 70 cm to 15 cm.  Every varieties of plant standing were presented to each variant of sowing; 70; 60; 50; 40 th/h. The studies were conducted on experimental plots of the Department of Biology and Agronomy of Taras Shevchenko. Luhansk National University. In experiments, hybrids of domestic breeding Jason, Hector, Basalt, Suchasnyk were planted; these hybrids cover the main morphotypes and groups of ripeness, which are most common in collective farms. The results showed that the methods of sowing influenced the quality of the seeds, but in most years there has been an increase in oil content on continuous sowing. The thickening of sunflower promotes an increase in oil content and a decrease in the protein content of seeds. The best seed quality was the Basalt hybrid.

scholarly journals DETERMINATION OF THE ELEMENTS OF PRODUCTION CYCLE TIME IN SERIAL PRODUCTION: THE SERBIAN CASE

2014 ◽  
Vol 38 (3) ◽  
pp. 289-304
Author(s):  
Dragan Ćoćkalo ◽  
Sanja Stanisavljev ◽  
Dejan Đorđević ◽  
Milivoj Klarin ◽  
Aleksandar Đ. Brkić
Keyword(s):  
Cycle Time ◽  
Mean Value ◽  
Working Time ◽  
Experimental Investigations ◽  
Time Range ◽  
Production Cycle ◽  
Distribution Law ◽  
Serial Production ◽  
Working Cycle

A model for the stochastic determination of the elements of production cycle time is proposed and experimentally verified in this survey. The originality of the model as reflected in the idea of using a work sampling model to monitor the production cycle is one of the most significant indicators of production effectiveness and efficiency, instead of applying classical methods. It has been experimentally proved that for a corresponding representative set the elements of working time range according to normal distribution law and that, dynamically viewed, it is possible to use mean value calculations to establish control limits on three standard deviations for the individual elements of working time and thus to master the process. Based on our experimental investigations, it has been proved that in the practice of small and medium-sized enterprises with serial production it is possible to design and apply a very simple but accurate enough stochastic model to determine the elements of working cycle time and in this way optimize the duration of production cycle time.

Balance Analysis and Improvement of Flywheel Production Line

2011 ◽  
Vol 201-203 ◽  
pp. 1131-1134
Author(s):  
Qiu Hong Jia ◽  
Yan Xiao ◽  
Yu Jie Gong ◽  
Kang Qu Zhou
Keyword(s):  
Cycle Time ◽  
Production Line ◽  
Lean Manufacturing ◽  
Production Efficiency ◽  
Working Time ◽  
Production Cycle ◽  
Line Balance ◽  
Before And After ◽  
Balance Analysis ◽  
Balance Problems

It studies the balance problems of cycle time of a flywheel production line in this paper. Based on the working time measured using lean manufacturing (LP) methods, the bottleneck processes of production line are found by simulating with software Witness, which is improved by using production cycle balancing method. Comparing the relevant parameters before and after the production line balance,the improvement results of production line are significant and the production efficiency can be improved.

scholarly journals MEASUREMENT OF WORKING TIME IN THE PRODUCTION PROCESS ”KERUPUK IKAN”IN GRESIK HOME INDUSTRY

Tibuana ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 20-23
Author(s):  
Yitno Utomo
Keyword(s):  
Production Process ◽  
Cycle Time ◽  
Research Method ◽  
Working Time ◽  
Process Time ◽  
Standard Time ◽  
Time Required ◽  
Time Standard ◽  
Descriptive Method

Measurement of time in the production process is necessary to know the length of time on each steps of making fish crackers. The timing is done directly using a stopwatch tool, with the aim of knowing the normal time, standard time, and cycle time as an improvement of production process time. In this study using descriptive method, which is one research method that describes the place of the process of production of fish crackers as appropriate. The result shows the time required in one production process is normal time 3986,12 minutes, standard time 4113,84 minutes, and cycle time get 2657,02 minutes.

Research on Buoy Power Management Technology Based on the Battery Switch Theory

2013 ◽  
Vol 336-338 ◽  
pp. 1455-1458
Author(s):  
Guo Liang Zou ◽  
Xin Nan Lou
Keyword(s):  
Working Time ◽  
Battery Pack ◽  
Cycle Performance ◽  
Li Ion Batteries ◽  
Capacity Fading ◽  
Function Model ◽  
Battery Capacity ◽  
Li Ion ◽  
Number Of Cycles ◽  
Specific Number

The cycle performance and the capacity fading model of 18650 Li-ion batteries and the possibility of dual-battery switching technology applied in marine buoys were studied. The recycling capacity fading data of 18650 li-ion batteries were gained and the data were fit by Matlab cttool toolbox. A fitting curve more in line with the scatters was gained. The number of cycles was calculated when the battery capacity remaining 80%. Then the normal working time and the working time using battery switching theory of a buoy were calculated under that specific number of cycles. The results show that the 18650 li-ion battery capacity fading model adheres more to the power function model than linear function model. Its correlation coefficient reaches 0.9811 and it shows a high fitting degree. The longevity of the battery pack using battery switching technology is 28.79% longer than the traditional single battery pack.

scholarly journals Особливості вирощування соняшника іноземної селекції в умовах Луганської області

2018 ◽  
pp. 11-16
Author(s):  
С. В. Маслійов ◽  
В. В. Степанов ◽  
І. І. Ярчук
Keyword(s):  
Steppe Zone ◽  
White Rot ◽  
High Yield ◽  
Mineral Fertilizers ◽  
Sowing Time ◽  
Sunflower Broomrape ◽  
Humidity Index ◽  
Winter Crops ◽  
New Races ◽  
Treatment Application

Наведено характеристику іноземних гібридів соняшника, найбільш поширених у Степовій зоні України. Проведено пошук найбільш продуктивних гібридів соняшника для вирощування в умовах Луганської області, які мають велику пристосованість до умов недостатнього зволоження та великого забруднення полів вовчком соняшниковим. Викладено оптимальну технологію вирощування іноземних гібридів соняшника для отримання високого врожаю. Надано реко-мендації щодо обробки ґрунту, застосування мінеральних добрив, термінів сівби, норми висіву, догляду за посівами. Також описано основні заходи з догляду за посівами та боротьби з бур’янами. Наведені гібриди  стійкі до зниження урожайності від нових рас вовчка й толерантні до фомопсису, білої гнилі кошику, білої гнилі стебла, стійкі до несправжньої борошнистої роси. Надано перспективний перелік іноземних гібридів, здатних за однакових умов вирощування давати високий урожай соняшника. The characteristics of foreign sunflower hybrids, which are most common in the Steppe zone of Ukraine, are given. A search for the most productive sunflower hybrids for growing in Luhansk region, which are highly adaptable to the conditions of insufficient moistening and large contamination of the fields by a sunflower broomrape, has been conducted. A broomrape is a parasitic plant, up to 65 cm high, which forms 500 thousand seeds having the ability to persist in the soil up to 20 years. The broomrape parasitizes on the roots of a sunflower and rapidly inhibits the growth and development, as a result of which the yield of the sunflower falls significantly. Among domestic hybrids, the majority is resistant to 4–5 races A-E, while foreign sunflower hybrids have a resistance to 7 races of A-G. The best technology of growing of foreign sunflower hybrids to obtain a high yield is described. In conditions of Luhansk region the best sunflower precursors are winter crops, corn, legumes, barley. In our case, winter wheat was a precursor of the sunflower. Recommendations for the soil treatment, application of mineral fertilizers, sowing time, seeding rates, crop care were provided. Since autumn, plowing to a depth of 25–27 cm was carried out. In the spring, in order to close the humidity by plowing, an alignment of the plowland was carried out. Due to the weak clogging with weeds, one pre-sowing cultivation was carried out to a depth of 5–6 cm. Strawberry herbicide Kratos was introduced directly before cultivation against the germs of weed vegetation. The main measures for the crop care and weed control are also described. Pre-emergence harrowing across the crops was conducted. In sunflower crops, 1–2 inter-row treatments with a ridger can be carried out to put the weeds in rows. One treatment was performed. Hybrids, which help to reduce the yield from new races and are resistant to: phomopsis, white rot of composite flowers, white rot of stems and unreal downy mildew, are shown. A perspective list of foreign hybrids that can produce a high sunflower yield under the same conditions of cultivation is provided. The best indicators for yield of tested hybrids by species with a humidity index of less than 8.0 % are Pioneer: P64LC108 with a yield of 27.75 c/ha, P63LE113 – 27.25 c/ha and PR64F66 – 25.00 c/ha. The best yields from the hybrids of the firm Limagrain were: LH5662 – 24.00 c/ha and LH50635 – 23.00 c/ha. Among the hybrids of Syngenta seeds the best result was shown by SI Arizona yield of 23.50 c/ha with 7.6 % moisture content.

scholarly journals The effect of crop rotation on the soil biological activity

2021 ◽  
pp. 39-44
Author(s):  
S. А. Zamyatin ◽  
R. В. Maksimova
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Crop Rotation ◽  
Spring Wheat ◽  
Crop Rotations ◽  
Mineral Fertilizers ◽  
Soil Biological Activity ◽  
Grain Crop ◽  
Winter Crops ◽  
Second Period

The current paper has presented the results of long-term experiments on the study of the biological activity of sod-podzolic soil by the application method in field crop rotations. The experimental part of the work was carried out on the experimental plots of the Mari Research Institute of Agriculture, a branch of the FSBSI FARC of the North-East in 1996–2020. The trials were laid down in 1996 and 1998. The trial was laid down in two factors. Factor A included such types of crop rotations as grain-grasses crop rotations (oats + clover, clover of 1 year of use, winter crops, vetch-oat mixture for grain, spring wheat, barley as a control grain crop); the first rotation of crops (annual leguminous grasses, winter crops, barley, potatoes, vetch-oat mixture for grain, spring wheat); the second rotation of crops (vetch-oat mix[1]ture for grain, spring wheat, potatoes fertilized with manure (80 t/ha), barley + clover, clover of 1 year of use, winter crops); the third rotation of crops (barley + clover, clover of 1 year of use, clover of 2 years of use, winter crops, pota[1]toes, oats). Factor B included application of mineral fertilizers: control grain crop (without fertilizers); N60P60K60. There has been established that the activity of soil microflora mainly depended on the presence of organic matter in the soil. The largest activity of cellulose-destroying microorganisms against a natural background of fertility was identified in the second rotation of crops, with the introduction 23.9% of manure for potatoes in the first period (45 days) and 54.7% in the second period (90 days) of exposure. The slightest biological activity of the soil was identified in the grain-grasses crop rotation (with 83% of grain crops); it was 17.7% in the first 45 days and 43.4% in the second period of exposure. That was caused by the deficit of organic matter. The introduction of mineral fertilizers in a dose of N60P60K60 under pre-sowing tillage significantly increased the soil biological activity in comparison to the unfertilized background, and a fairly high intensity of flax decomposition was observed in the second rotation of crops with 24.9% in 45 days and 56.8% in 90 days. Correlation analysis (1998-2019) between the mean flax decomposition under crops for the entire vegetation period and the value of the hydrothermal coefficient (HThC) showed a close direct correlation, which in the first and second periods of exposure was 0.87–0.90 and 0.86–0.89, respectively.

scholarly journals Вплив різних агротехнічних прийомів на вирощування післяукісного соняшнику в умовах Луганської області

2018 ◽  
pp. 24-29
Author(s):  
С. В. Маслійов ◽  
А. М. Шевченко ◽  
В. В. Степанов ◽  
О. В. Бугайов
Keyword(s):  
Agricultural Production ◽  
Arable Land ◽  
Climatic Conditions ◽  
Utilization Rate ◽  
Winter Rye ◽  
Additional Source ◽  
The North ◽  
Wide Range ◽  
National University ◽  
Winter Crops

Проміжні культури є передусім важливим додатковим джерелом продукції сільського господарства. Вони дають змогу в сівозмінах інтенсивного землеробства значно підвищити коефіцієнт використання ріллі (КВР), який характеризує відношення площі посівів сільськогосподарських культур до загальної площі ріллі. З розширенням проміжних культур КВР зростає від 1 до 1,3. Залежно від термінів посіву основних культур, після прибирання яких обробляються проміжні культури, вони діляться на озимину, пожнивну, підсівну і післяукісні. Післяукісні проміжні культури висіваються після скошування основної озимини і ярових культур на зелений корм. Вибір післяукісних культур визначається конкретними ґрунтово-кліматичними умовами і господарськими потребами. У ґрунтово-кліматичних умовах півночі Луганської області з тирвалим теплим періодом зростання за достатньої вологозабеспеченності рослин в якості післяукісних культур використовуються кукурудза, гречка, просо, соя, соняшник та інші. У нашій роботі виявлено відмінності під час особливостей вирощування соняшнику в післяукісному посіві після озимого жита, прибраного на зелену масу. Досліди проводилися на дослідних ділянках Луганського національного університету ім. Тараса Шевченка в 2015–2017 роках. Після збирання озимого жита сіяли ранньостиглий гібрид соняшнику Pioneer P63LE113 по оранці і по-верхневій обробці ґрунту на гербіцидному («Трефлан» 4–5 л/га, «Харнес» 2 кг/га) і безгербіцидному фонах. На обох способах посіву установлювали страхові надбавки 20, 40 і 60 % до оптимальної переджнивної густоті стояння соняшнику на рядовому посіві 70 тис./га, широкорядному – 50 тис./га. Боронували соняшник бороною БЗСС-1,0, а на широкорядному посіві додатково за необхідності проводили міжрядні обробки. Найбільш високі урожаї забезпечуються під час посіву суцільним способом і підтримці полів у чистому від бур'янів стані. При цьому виключаються міжрядні обробки. Intermediate crops are primarily an important additional source of agricultural production. They allow crop rotation of intensive agriculture to significantly increase utilization rate of arable land (UR of AL), which characterizes the ratio of the area of crops to the total area of arable land. With the expansion of intermediate crops, the UR of AL increases from 1 to 1.3. Depending on the dates of sowing of the main crops, after harvesting of which intermediate crops are cultivated, they are divided into wintering, sowing and post-skeletal. Post-skeletal intermediate crops are sown after cutting the main winter crops and spring crops on green feed. The choice of post-ear crops is determined by specific soil-climatic conditions and household needs. In soil-climatic conditions in the north of Luhansk region with a thriving warm period of growth with sufficient moisture supply of plants, post-crop crops use corn, buckwheat, millet, soya, sunflower, and others. Our work revealed differences in the peculiarities of growing sunflower in post-crop sowing after winter rye, harvested on green mass. Experiments were conducted on experimental sites of Luhansk National University of Taras Shevchenko in 2015–2017. After harvesting of winter rye, an early-seeded hybrid of Pioneer P63LE113 sunflower was sown by rooting and surface treatment of the soil on herbicide (Treflan 4-5 l/ha, Harnes 2 kg/ha) and non-herbicide backgrounds. On both methods of sowing, insurance premiums were set at 20, 40 and 60 % to the optimal density of sunflower stand on ordinary crops of 70 th/ha, and broad-row – 50 th/ha. Flours of sunflower with harrow BZSS – 1.0, but on wide-range crop additional, if necessary, inter-row processing. The highest yields are provided when sown in a continuous manner and the maintenance of fields in a pure state of weeds. It eliminates inter-row processing.

scholarly journals Production and Technological Parameters of Milled Peat Extraction Depending on Organization of Peat Machines Operation

2019 ◽  
Vol 105 ◽  
pp. 01002 ◽  
Author(s):  
Elena Chertkova ◽  
Victoria Sizova
Keyword(s):  
Technological Process ◽  
Cycle Time ◽  
Weather Conditions ◽  
Drying Rate ◽  
Technological Parameters ◽  
Design Standards ◽  
Peat Extraction ◽  
Milled Peat ◽  
Number Of Cycles ◽  
Thick Layers

The article presents two options of organizing the technological process of milled peat extraction with due consideration of weather conditions for peat drying. The first option of the technological process is the extraction based on cycle peat harvesting differentiation. The developed technological process of milled peat drying in thick layers based on pneumatic peat harvesting allows us to organize a technology of peat extraction with a constant cycle time, avoiding the necessity for drying rate prediction. This is due to the fact that under good weather conditions the spreading thickness of 45-50 mm is sufficient to maximize the number of harvesting cycles. Milling at roughly equal depths forms the basis for the second option of technological process. The article presents the methodology of calculating such technological parameters as cycle and seasonal harvesting, number of cycles and seasonal productivity of a harvesting machine. Seasonal harvesting and seasonal productivity of a harvesting machine are calculated by technological design standards. The analysis of calculations revealed that in the process of milled peat extraction based on cycle harvesting differentiation, it is necessary to apply coefficient 0.9 that takes into account the organization of harvesting machines operation.

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