Journal articles: 'Laying equipment'

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Kang, Xue Jun, Bing Jie Zhao, and Bin Long. "Design of Sand-Blasting Lifting Equipment." Advanced Materials Research 1006-1007 (August 2014): 211–16. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.211.

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Due to pipe-laying process changed for Offshore Oil 201 pipelay vessel requires to place sand blasting machine equipment in suite place, to meet the sand-blasting machine to complete the process of laying pipe work cycle which demands for subsea pipelines sandblasting, then the sand-blasting lifting equipment was designed. The equipment consists of a hydraulic lifting platform system, rail trolley system and control system. The experiments showed that the sand-blasting lifting equipment could securely connect with sand-blasting machine, the sand-blasting machine could be lift fast, installation fast in the suite place, meeting the production requirements.

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Kothari, Kesar Mal, Vishweshwar Samba, Kinza Tania, R. Udayakumar, and Ram Karthikeyan. "AUTOMATION OF UNDERGROUND CABLE LAYING EQUIPMENT USING PLC AND HMI." IOP Conference Series: Materials Science and Engineering 346 (April 2018): 012080. http://dx.doi.org/10.1088/1757-899x/346/1/012080.

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MARIHONNAPPANAVARA, SIDDESH, and M. VEERANGOUDA. "Development and evaluation of tractor operated plastic mulch laying equipment." INTERNATIONAL JOURNAL OF AGRICULTURAL ENGINEERING 10, no. 2 (October 15, 2017): 374–78. http://dx.doi.org/10.15740/has/ijae/10.2/374-378.

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Doroshenko, Ya V., V. A. Kucheriaviy, N. M. Andriishyn, S. M. Stetsiuk, and Yu M. Levkovych. "Modern Technologies of the Construction of Field Oil-and-Gas Pipelines." Prospecting and Development of Oil and Gas Fields, no. 3(72) (September 30, 2019): 19–31. http://dx.doi.org/10.31471/1993-9973-2019-3(72)-19-31.

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Foreign experience in the construction of industrial pipelines of flexible composite pipes for the transportation of hydrocarbons is considered. The expediency of using such pipes in the gas-oil complex of Ukraine is substantiated. The designs of flexible composite pipes are described, a brief description of their construction materials is given, the advantages of these pipes over steel ones are considered. The largest manufacturers of flexible composite pipes are listed and the technical specifications of their products are indicated. Schemes and methods for laying flexible composite pipelines are considered. The technology of preparing flexible composite pipes for transportation is described and the means used for handling are given. The requirements as to trenching for laying single and multi-stranded flexible composite pipelines are described. The article presents the technologies and tools used to unwind flexible composite pipes from reels and coils before laying them. The methods of connecting flexible composite pipes to each other and to technological equipment, steel pipes, and Xmas-trees are analyzed. The designs of union fittings are considered and the technology of their installation is described. The authors consider methods, technologies and requirements for laying flexible composite pipelines in a trench, their ground laying and laying at the point where the flexible composite pipe exits to the ground for attachment to a steel pipe or technological equipment. The article presents the features of laying flexible composite pipelines through highways, water barriers and swamps by both trench and trenchless technologies, features of trenchless reconstruction of defective, worn steel pipelines with flexible composite pipes, and features of pigging flexible composite pipes and their trying out.

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Shulga, L. V., K. L. Miadvedeva, A. V. Lantsou, and N. O. Ryzhykau. "THE INFLUENCE OF TECHNOLOGICAL EQUIPMENT ON THE PRODUCTIVITY OF LAYING HENS." BULLETIN OF VETERINARY PHARMACOLOGY 4 (December 2018): 59–65. http://dx.doi.org/10.17238/issn2541-8203.2018.4.59.

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Ponomarenko, Yu E., M. V. Maksimov, V. I. Krutov, and L. V. Erofeev. "Improvement in equipment for laying foundations in rammed down foundation pits." Soil Mechanics and Foundation Engineering 28, no. 6 (November 1991): 256–60. http://dx.doi.org/10.1007/bf02101302.

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Buijs, Stephanie, Francesca Booth, Gemma Richards, Laura McGaughey, Christine J. Nicol, Joanne Edgar, and John F. Tarlton. "Behavioural and physiological responses of laying hens to automated monitoring equipment." Applied Animal Behaviour Science 199 (February 2018): 17–23. http://dx.doi.org/10.1016/j.applanim.2017.10.017.

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Zhvan, V., V. Donenko, S. Kulish, and A. Taran. "ANALYSIS OF EXTERNAL ENGINEERING NETWORK METHODS." Municipal economy of cities 4, no. 157 (September 25, 2020): 7–11. http://dx.doi.org/10.33042/2522-1809-2020-4-157-7-11.

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The article is devoted to the effective analysis of trench and trenchless pipeline laying technologies. In the course of the work, an analytical review of pipeline assembly was performed, the main technological parameters, the scope of each method, and their advantages and disadvantages were determined. List of considered pipeline laying methods: trenching, horizontal directional drilling, mechanical puncture, hydraulic puncture, microtunneling and punching. The article analyzes the classical trench method and the most widely used trenchless ones: horizontal directional drilling; mechanical puncture; hydraulic puncture; microtunneling; punching. Each of these methods has several advantages and disadvantages. The choice of the optimal method of laying the pipeline depends on many factors: the physical and mechanical properties of soils and hydrogeological conditions, the length and diameter of the pipeline, the presence of other communications, buildings and structures, as well as the budget that customers have. Work time is the last deciding factor. Based on the results of the analysis of pipeline laying technologies and expert survey of construction industry experts, the cost table of each method was compiled, outlining the main characteristics of the technology: length of pipeline, speed of work, scope, cost, and the advantages and disadvantages of each of the considered methods. The conclusions about the use of each of the pipeline laying methods were made. Each of the methods has its advantages and disadvantages, so to choose the method of work it is necessary to conduct a comprehensive assessment of technological parameters, cost, scope and timing of work. The cost of lay-ing the pipeline consists of the following factors: conducting research; selection of diameter and determination of pipeline length; choice of laying method and equipment necessary for the works; selection of equipment, shut-off and control equipment and other materials arranged on the pipeline; terms of performance of works. Taking into account these factors, an estimate is made, which determines the cost of installation of a particular pipeline. After the analysis, we can conclude that among the methods of trenchless laying of pipelines can be identi-fied horizontally directional drilling, it is this method of laying the pipeline will be appropriate to use for our region. The drilling technique allows to carry out pipelines under obstacles, to pull long segments of networks, to repair site damage. This method is universal and can be used in almost any environment. Keywords: trenches, horizontal directional drilling, mechanical puncture, hydraulic piercing, microtunnelling, punching, pipeline.

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Timoshkov, P. N., V. A. Goncharov, M. N. Usacheva, and A. V. Khrulkov. "THE DEVELOPMENT OF AUTOMATED LAYING: FROM THE BEGINNING TO OUR DAYS (review) Part 1. Automated Tape Laying (ATL)." Aviation Materials and Technologies, no. 2 (2021): 51–61. http://dx.doi.org/10.18577/2713-0193-2021-0-2-51-61.

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The article is devoted to the currently topical problem of automating the process of lay-up tapes of composite parts. One of the main technologies used for the production of structures from thermosetting or thermoplastic composites is the Automated Tape Laying (ATL). In the first part of the article, the technology of laying-up the tapes for large simple flat parts is considered, as well as the process and equipment from well-known companies on the market is described.

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Danilov, B. B. "Ways of improvement of the technologies and equipment for trenchless communications laying." Journal of Mining Science 43, no. 2 (March 2007): 171–76. http://dx.doi.org/10.1007/s10913-007-0019-1.

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Markelov, Aleksey, Lyudmila Gavrilova, and Sergey Belov. "Features of the tripping mechanization with the horizontal pipe laying." E3S Web of Conferences 177 (2020): 03007. http://dx.doi.org/10.1051/e3sconf/202017703007.

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The relevance of the work is due to the need of the oil industry in the tripping mechanization when working with the drilling, casing and compressor tubes with simultaneous reduction in the installation, disassembly and transportation of the pipe storage units while ensuring the required technological capabilities. The purpose of the article is to consider the possible design improvement of the mechanized V-door ramp in order to simplify the oil well construction or repair. The article presents an analysis of existing equipment for the operation mechanization with the horizontal pipe laying, as one of the most common type of laying. The requirements for the mechanized V-door ramp are determined. The advantages of automation of the drill-pipe connection operations using the mechanized V-door ramps are analyzed. The results are as follows: the functional analysis of the means and equipment for the tripping mechanization allows to compile the functional and constructive classification of pipe stand receivers and mechanized V-door ramps. The task is set to use the systematic approach to find the ways for the efficiency improvement of the tripping mechanization means with the horizontal pipe laying.

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Skřivan, M., M. Englmaierová, and V. Skřivanová. "Negative effect of phytase superdosing in laying hens." Czech Journal of Animal Science 63, No. 5 (April 26, 2018): 182–87. http://dx.doi.org/10.17221/113/2017-cjas.

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Hisex hens, aged 24 weeks, were divided into 6 groups. Each group consisted of 4 cages with 10 hens per cage with dimensions and equipment meeting the EU directives. This 2 × 3 factorial experiment included two levels of calcium (Ca; 35 or 42 g/kg) and 3 different additions of 6-phytase OptiPhos<sup>®</sup> (Ph; 0, 300, and 1500 phytase units (FTU)/kg) to the diet. The content of nonphytate phosphorus (NPP) in all diets was the same (1.8 g/kg). The experiment lasted 12 weeks. A significant interaction of Ph × Ca (P = 0.029) was observed in hen-day egg production. A diet with 35 g/kg Ca and the highest dose of Ph (1500 FTU/kg) resulted in a lower hen-day egg production (84.1%) than did the other treatments (91.5–88.6%). Phytase superdosing negatively influenced egg mass production (P = 0.001) and the feed conversion ratio (P = 0.018). Neither Ph nor Ca influenced eggshell ash content. Both additions of Ph into mixed feed decreased Haugh units (P < 0.001). A higher content of Ca in the diet increased shell thickness (P = 0.024) and shell breaking strength (P = 0.039), while Ph addition increased shell percentage (P = 0.004) and shell breaking strength (P = 0.009). The results of this experiment demonstrate the unsuitability of Ph superdosing in mixed feed for laying hens.

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Chervov, Vladimir V. "IMPROVEMENT OF DESIGN OF PNEUMATIC HAMMER FOR DRIVING VERTICAL PIPES WITH LARGE DIAMETER INTO SOIL." Interexpo GEO-Siberia 2 (July 8, 2020): 219–25. http://dx.doi.org/10.33764/2618-981x-2020-2-219-225.

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A brief description of the equipment used for trenchless pipe laying is given. The basic parameters of a pneumatic hammer designed for driving pipes into soil with an open end greater than 426 mm in diameter are substantiated. The description of the device and operating principle of a pneumatic hammer with an air distribution system using an elastic circular valve as the main element is presented. Based on the analysis of many-year operation of equipment for trenchless pipe laying and driving vertical pipes, the frequency and sequence of crack appearance, destruction and failure of the main parts of the pneumatic hammer are determined. New principles of calculation and design of a pneumatic hammer with a large mass of the striking part without loss of work performance are proposed. The solution to the problems associated with fatigue failure of the main parts is a decrease in striking velocity.

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Wahyuni, Hanny Indrat, Retno Iswarin Pujaningsih, and Padwi Anwar Sayekti. "Kajian Nilai Energi Metabolis Biji Sorghum Melalui Teknologi Sangrai Pada Ayam Petelur Periode Afkir." Jurnal Agripet 8, no. 1 (April 1, 2008): 25–30. http://dx.doi.org/10.17969/agripet.v8i1.605.

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Evaluation of metabolic energy value of roasted sorghum in culled laying chickens ABSTRACT. Tannin contained in sorghum can be reduced by using technology processing such as roasting. By using this way, husk of sorghum can be removed leading to decrease of tannin content which is reflected by the value of metabolism energy. The purpose of this experiment is to investigate the effect of roasted sorghum on metabolism energy of culled laying chickens. Measurement of metabolic energy as mathematic is used as comparison. The material used in his experiment was red sorghum, water, and 39 culled laying chickens. Equipment used in this experiment was balance, roasting tool, plastic, force feeding equipment, metabolism cages and bomb calori-meter. This experiment used completely randomized design consisting of 4 treatments and 4 replications (each replication 3 chickens). Treatment consisted of T0 = no roasted sorghum, T1 = roasted for 5 minutes and T2 = roasted for 10 minutes. Data collected were metabolism energy of roasted sorghum both biologically (force feeding) and mathematically (proximate analysis) at culled laying chickens. All data were statistically calculated, further statistically was conducted by using Duncan and compression of metabolism energy was calculated by using t-Test. The results show that, no statistically effect (p0, 05) on duration of roasting on metabolism energy of sorghum. Based on t-Test analysis, there was a significantly difference (p0, 05) between biological metabolism and mathematical metabolism. From this experiment, it can be concluded that 10 minutes of roasting cannot increase of sorghum metabolic energy. The average of biological metabolic was lower (3105, 94 kcal/kg) compared to the average of mathematical metabolic energy (3766, 82 kcal/kg).

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Martynova, N. B., and V. I. Balabanov. "The design of the working equipment for laying a drip tape based on the Grimme GF-75/4 ridge former." E3S Web of Conferences 262 (2021): 01018. http://dx.doi.org/10.1051/e3sconf/202126201018.

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The article examines statistical data on the amount of precipitation in the spring - summer period and substantiates the need for irrigation measures when growing potatoes in the Moscow region. The rationality of the use of drip irrigation as the most economical and effective method of watering has been proved. With drip irrigation, there is practically no danger of excessive watering, causing the leaching of nutrients from the root layer, an increase in the level of groundwater, and an additional load on the drainage network. The use of drip irrigation will make it possible to maintain an optimal water and air balance during the growing season. The possibility of combining technological operations for laying a drip tape and forming potato ridges is considered. It is found that the resistance of the drip tape laying will not create significant traction resistance, so the working equipment can be mounted on the ridge former. The design of a drip tape stacker based on the Grimme GF-75/4 ridge former was developed and a mechanized drip tape was laid in a potato ridge. It has been proven that the implementation of the drip tape laying and the formation of ridges with one machine will increase the productivity of the work and reduce the energy consumption.

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Andreev, V. A., A. V. Bourdine, and V. A. Burdin. "Comprehensive solution for onboard fiber-optic information networks." Radio industry (Russia) 30, no. 4 (December 23, 2020): 8–13. http://dx.doi.org/10.21778/2413-9599-2020-30-4-8-13.

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Problem statement. In recent years, the problem of replacing copper-core fiber-optic cables has become particularly relevant. This is due to two factors: first, the prospect of introducing unmanned vehicles and the development of electromagnetic microwave weapons that can disable electronic equipment for almost any target at a distance of 10 km or more, and second, the growing need to reduce the delay of transmitted signals on the network and increase the volume of information transmitted in these networks. The article describes the construction of onboard cable networks using fiberoptic cables. The advantages and disadvantages of fiber-optic based onboard networks are described.Objective. Development of solutions for the use of fiber-optic communication cables in onboard information networks that provide high technology for laying optical cables, the required speed of information transmission, ease of operation and modernization of information networks.Results. A comprehensive solution for building onboard information networks based on fiber-optic cables having an increased core diameter and an optimized refractive index profile in pipelines using pneumatic laying technology is proposed.Practical implications. The proposed integrated solution for onboard fiber-optic information networks, including a method for onboard laying optical cables, the use of specially developed optical fiber with an increased core diameter and reduced differential modal delay, and the development of modular telecommunications equipment, allows meeting the requirements for onboard networks to ensure reliability and safety, economic efficiency, reduce labor intensity, and ease of maintenance, components dismantling and replacement.

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Fei, Jia Wei, Xiong Jie Zeng, Yi Wei Zhang, Hong Wei Wang, and Jian Tong Zhang. "A SVM Model for Identifying Partial Discharge Based on TEV Data." Advanced Materials Research 468-471 (February 2012): 633–37. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.633.

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Electric equipment breakdown is mainly caused by Partial Discharge (PD), so identification and diagnosis of PD are of great importance to the maintenance of electric equipment. This research analyzes the field TEV data of PD using SVM theory and establishes a model to detect and analyze PD, with related experiments verifying the validity of the model. According to the experience on site, we redesign the evaluation criteria and build a new model to guarantee that the identification rate reaches over 80%. The comparative experiment indicates that the SVM method proposed in this paper performs better on PD detection than BP Neural Network, laying foundation for further research.

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Sun, Li Ying, Li Tao Xiao, and Yi Tong Li. "Experimental Study on Heat Pipe Heat Recovery Type of Fresh Air Ventilator." Advanced Materials Research 608-609 (December 2012): 1172–76. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.1172.

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Have proposed a heat recovery of fresh air ventilator system form,which is based on the technology of refrigerant natural circulation named heat-pipe. Describes the working principle of the unit, designs a new type of heat recovery air ventilator test equipment,and carries out a experimental study on its running performance.Have come to the effect of air flow and the temperature difference between indoor and outdoor for the heat recovery rate. Experimental results show that this equipment has a high heat recovery efficiency and a good effect on energy-saving . Through experimenting on the performance, laying a foundation for further optimization of unit design.

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Ismy, Romaynoor, Husaini, M. Saleh Sofyan, and M. Isya. "Flexural Resistance Analysis on Hot Asphalt Mixtures with Wire Mesh Placement Modeling as Reinforcement." Key Engineering Materials 892 (July 13, 2021): 99–106. http://dx.doi.org/10.4028/www.scientific.net/kem.892.99.

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Flexural resistance is the ability of a specimen to withstand force in two pedestals with vertical axis until it is broken. Flexible pavement is a type of pavement which is very dependent with pavement course underneath. The dependency of flexible pavement in both base course and subgrade makes this pavement difficult to apply in unstable soil. Using wire mesh course as reinforcement is considerably able to raise the flexural resistance. This study is aimed to analyze flexural resistance value in hot mix by using wire mesh course as reinforcement. The study is conducted by applying experimental method with designing four types of wire mesh laying models in hot mix using three points flexural test equipment. Based on the study result, it is found that hot mix with wire mesh laying 30 mm from specimen surface is the best model type with 291,85 KN flexural resistance value with 8 mm of deflection depth. In this laying, it can be concluded that wire mesh course can raise up the flexural resistance up to 35,41% compared to the hot mix without wire mesh course.

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Davies, R., and M. Breslin. "Environmental contamination and detection of Salmonella enterica serovar enteritidis in laying flocks." Veterinary Record 149, no. 23 (December 8, 2001): 699–704. http://dx.doi.org/10.1136/vr.149.23.699.

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Faecal, dust and other environmental samples were collected from the floors, droppings belts, egg-collection systems and other areas of 14 cage-layer flocks, 10 barn egg production flocks and seven free-range flocks, and cultured for Salmonella species. The distribution of the organism varied with its prevalence and with the vaccination status of the birds. No one sample type was found to be suitable for identifying all contaminated houses. Salmonella was also frequently found on egg-packing equipment and in samples from rodents and wild birds.

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Feng, Xian Jie. "Passive Wireless Communication Technology Applied in Green Building." Advanced Materials Research 1061-1062 (December 2014): 1190–93. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.1190.

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The passive wireless communication as a kind of advanced new technology, has been widely applied in the green energy-saving buildings. It is through the control of building system terminal equipments, data exchange mode and control layer, and update the mechanical and electrical equipment control logic, to achieve the purpose of implementation of green energy-saving renovation project. The use of this technology to radically reduce the construction cost, and not just make the energy consumption of building system control, and a substantial reduction in cable laying, metal used, battery replacement, pollutants brought about by the construction cost. Advanced passive wireless sensor, using energy collection technology, and make full use of indoor light energy in daily life, human activities of mechanical energy, etc., to achieve the purpose of automatic control of the green building system.

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Wang, Wen Ming, Yin Li, Shi Min Zhang, Da Xin Luo, and Xiao Xiao Zhu. "Structure Design of a Novel Four Tracks Umbilical Tensioner." Advanced Materials Research 532-533 (June 2012): 277–81. http://dx.doi.org/10.4028/www.scientific.net/amr.532-533.277.

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The umbilical tensioner is special equipment for laying pipeline offshore. Paper analyzes the research of umbilical tensioner, calculates the driving torque of the drive device, and designs the overall program of the tensioner structure based on four tracks structure, takes a mechanical check of key components in the actual operating environment. Analyzing the umbilical tensioner has a theoretical significance for the designing. The results show that the mechanical structure is reasonable.

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Mróz, Emilia, Monika Stępińska, Aneta Orłowska, and Katarzyna Michalak. "Frequency of Occurrence of Physical Defects in Turkey Poults / Częstotliwość występowania wad budowy piskląt indyczych." Annals of Animal Science 13, no. 3 (July 1, 2013): 543–52. http://dx.doi.org/10.2478/aoas-2013-0020.

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Abstract The objective of this study was to determine poult quality in the first breeding season of turkeys. The study was conducted over a 24-week laying season of white broad-breasted Big 6 turkeys. Starting from the first week of laying, at three-week intervals, 504 eggs laid on the same day were weighed and the percentages of eggs weighing 70 to 100 g and more than 100 g were calculated. Results from the 21st week of laying season were not used due to failure of ventilation equipment. Each egg was visually inspected to determine the percentages of eggs with normal shell structure, rough-shelled eggs and eggs without shell pigmentation. Nine incubation cycles were carried out. Egg fertilization rates and hatch rates were determined. At the end of each incubation cycle, poults were weighed individually and divided into morphologically normal and morphologically defective. The latter were further subdivided into weak poults with poor motor skills, poults with abnormal feathers, eyes, legs and umbilicus, and poults with unabsorbed yolk sacs. Eggs with weight exceeding 100 g accounted for 17.9% and 46.6% of the analysed eggs at 12 and 24 weeks of the laying season, respectively. In week 12, eggs without shell pigmentation accounted for 8.3%. In week 24, the percentage of rough-shelled eggs was 6.7%. Most poults with physical defects hatched in weeks 1 and 3 of the laying period (65.67% and 76.84%, respectively). Weak poults with poor motor skills accounted for 0.2-2.5% of the examined birds. Wet feathers were noted in 0.9% to 4.1% of poults over the laying season. Leg abnormalities were observed in 6.5% to 7.8% of poults. Eye defects were encountered least frequently. In 41-70% of poults long black scabs were visible on their navels, and umbilical vessels were long. Unabsorbed yolk sacs were noted in 0.5% to 3.2% of poults.

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Timoshkov, P. N., V. A. Goncharov, M. N. Usacheva, and A. V. Khrulkov. "THE DEVELOPMENT OF AUTOMATED LAYING: FROM THE BEGINNING TO OUR DAYS (review) Part 2. Automated Fiber Placement (AFP)." Aviation Materials and Technologies, no. 3 (2021): 117–27. http://dx.doi.org/10.18577/2713-0193-2021-0-3-117-127.

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Automated Fiber Placement is one of the main technologies used today for manufacturing of modern composite materials from narrow bundles of 3.2; 6.35 and 12.7 mm wide, which are usually stacked in one sequence using a special head. AFP allows you to lay out parts with complex geometry. The second part considers the development of technology from its origination to the present day and provides the description of the laying process and modern equipment on the market.

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Kravets, I. P., O. I. Bashynskiy, A. P. Kushnir, and O. V. Shapovalov. "FACTORS OF FIRE HAZARD OF ELECTRICITY-GENERATING EQUIPMENT." Fire Safety, no. 34 (July 19, 2019): 43–46. http://dx.doi.org/10.32447/20786662.34.2019.07.

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The article deals with the problems of fire hazard of electricity-generating equipment during their exploitation. Intensive electrification of industrial and residual objects leads to the saturation of these objects with different electricity-generating equipment. Functioning of such equipment is accompanied with high heat emission and contains significant fire hazard. The electric current in an electrical conductor produces heat, when electric energy turns into thermal. All electrical equipment must be produced in strict adherence to fire safety rules and requirements. Ignoring these requirements causes heating of conductors through all the length, spunking of isolation, sparkling and, as a result, breaking-out of fire. Therefore, reducing the probability of fire even in the cases of abnormal work, wrong exploitation and foreseen refuses is the main task during planning and exploitation of electrical equipment and also during selection of structural materials. The primary purpose of fire prevention measures in the electrical equipment is avoiding of its self-ignition, and localization of fire after the self-ignition of electricity-generating equipment. Fire safety during exploitation of electricity-generating equipment depends on its technical state. Correct choice of conductor cross section is very important. Protection stage of electrical equipment, type of wiring, and cable laying method must comply with environmental conditions and have the proper climatic implementation and placement category. Proper protective devices from a short circuit and overloads must be used. Their operating values must be also foreseen. All above-mentioned measures prevent fires and explosions during exploitation of electrical equipment. Key

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Marihonnappanavara, Siddesh, M. Veerangouda, K. V. Prakash, Sunil Shirwal, and B. Maheshwara Babu. "Performance Evaluation of Tractor Operated Plastic Mulch Laying Equipment for Black and Silver Colored Plastic Mulches." International Journal of Current Microbiology and Applied Sciences 7, no. 12 (December 10, 2018): 2411–22. http://dx.doi.org/10.20546/ijcmas.2018.712.274.

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Oh, Taek-Keun, and Seung-Joo Lee. "The Effects of Noise and Vibration Generated by Mechanized Equipment in Laying Hen Houses on Productivity." Journal of the Faculty of Agriculture, Kyushu University 56, no. 2 (September 2011): 271–77. http://dx.doi.org/10.5109/20320.

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Roberts, J. R., Kapil Chousalkar, and Samiullah. "Egg quality and age of laying hens: implications for product safety." Animal Production Science 53, no. 12 (2013): 1291. http://dx.doi.org/10.1071/an12345.

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Eggs were collected from commercial caged layer flocks in early, mid, late and very late lay. Eggs were candled and scored for translucency. Cuticle cover was estimated using MST Cuticle Stain and a Konica Minolta hand-held spectrophotometer. Traditional measures of egg quality were determined using specialised equipment. Shell ultrastructural features were scored following plasma ashing of shell samples and viewing under a benchtop scanning electron microscope. Translucency score was significantly higher in late lay than for all other age groups. Shell quality declined with increasing flock age. However, the extent of cuticle cover on the egg shell was not significantly different among flock age groups. The incidence of shell ultrastructural features associated with good quality shells was lower for older flocks and incidence of ultrastructural features associated with poorer quality shells was higher for older flocks. Translucency score had a low correlation with the ultrastructural features of the mammillary layer.

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Biryuzova, E. A., and A. S. Glukhanov. "Studying the Features of Method Choice of Heat Networks Laying Which Affect Their Energy Efficiency." Proceedings of the Southwest State University 24, no. 4 (February 4, 2021): 29–41. http://dx.doi.org/10.21869/2223-1560-2020-24-4-29-41.

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Purpose of research. Most of the heating network pipelines in our country have a significant service life exceeding 25 years. Due to the use of obsolete thermal insulation materials, not a reasonable choice of heat networks installation methods which not meet modern requirements of standards and technical documentation, long-haul pipelines, during the coolant transportation around 60% of heat energy is lost. As a result, the implementation of energy saving measures and improving the energy efficiency of heating networks that do not require significant investment is currently most relevant. Methods. The paper considers one of the ways to save energy in the heat supply system by choosing the most effective method of pipelines laying. There have been performed thermal calculations, taking into account the availability of different equipment of the heat network, the same type of pipeline sections of the heat network using the same thermal insulation material for different laying methods. Results.The given paper presents the results of an analytical study of the requirements for choosing a method for laying heating network pipelines in order to systematize and summarize the data of reference and modern regulatory literature, as well as generalized results of design work and recommendations of expert organizations, which plays a significant role in choosing a construction site, as well as identifying factors that can improve the energy efficiency of heat networks. One of these factors is the choice of the most effective method of pipelines laying. Conclusion. A comprehensive review of the set of conditions (geological, climatic, structural and others) in which the projected heat network pipelines will be operating allows us to choose the most effective method of laying. Owing to that method, it is possible to reduce heat energy losses by 50-80%.

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Wang, Xin, Jia Wang, Xin Liu, Guo Liang Zhao, Wen Jing Wang, and Di Wu. "Analysis of Pipe Structure Stress Affected by Double Corrosion Points." Advanced Materials Research 986-987 (July 2014): 819–22. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.819.

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Currently, corrosion of offshore crane booms is serious and badly affects equipment performance and working safety. Obviously, analysis of the corrosion is necessary. In this paper, as an actual case, the boom FEM of 320t pipe-laying crane is built to analyze its double points corrosion based on analysis of single point corrosion. By analyzing stress concentration and stress distribution of different distance for double corroded points, which can be axially arranged or circularly arranged, we try to obtain some affected trends.

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Mazzetto, Fabrizio, and Aldo Calcante. "DEVELOPMENTAND FIRST TESTS OF AN AUTOMATIC SYSTEM FOR COMMERCIAL VINE CUTTING TRANSPLANTERS BASED ON DGPS-RTK TECHNOLOGY." Journal of Agricultural Engineering 40, no. 2 (June 30, 2009): 1. http://dx.doi.org/10.4081/jae.2009.2.1.

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The aim of this paper is the proposal of an innovative system for commercial transplanter to allow the automatic point-laying location of each vine cutting, without any kind of field preliminary squaring. A DGPS-RTK system is able to calculate the vine cutting location according to the project values; the transplant operation, carried out by electro-hydraulic and electro-mechanical components, is completely automated. The goal is to increase the work rate of the transplanting equipment and reduce the necessary skilled labour, without losing the accuracy of the vineyard planting.

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Zhang, Yaxin, Qiang Li, Yafeng Zhang, Qian Wang, Xiaowei Li, and Ying Shuai. "Design and research of reclaimed water system in Chifeng College Dormitory." E3S Web of Conferences 233 (2021): 03034. http://dx.doi.org/10.1051/e3sconf/202123303034.

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With the continuous development of reclaimed water treatment technology, the development and research of wastewater treatment and reuse technology and equipment suitable for colleges and universities can not only eliminate the pollution of wastewater to the environment, but also reduce the cost of water use in Colleges and universities. The reclaimed water can be used as campus toilet and clean water. Chifeng College Dormitory water utilization system transformation, a lot of saving water and sewage charges, saving the water pipeline laying and operation of the corresponding facilities investment, corresponding to reduce the school operating costs.

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Djukic-Stojcic, Mirjana, Lidija Peric, Renata Relic, Ivana Bozickovic, Vesna Rodic, and Vida Rezar. "Keel bone damage in laying hens reared in different production systems in Serbia." Biotehnologija u stocarstvu 33, no. 4 (2017): 487–92. http://dx.doi.org/10.2298/bah1704487d.

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The European Union in 2012 banned conventional battery cages for the welfare reasons. However, transition to new housing systems uncovered some new problems, such as keel bone damage (KBD), which also could endanger welfare of laying hens. Although KBD is a research topic which attracts a growing attention in the EU, in Serbia it is still rather unknown phenomenon, even among the scientific and professional community. This research is the first attempt to determine the prevalence of KBD in laying hens in housing systems currently existing in Serbia. The results of conducted monitoring show presence of KBD on all observed farms, except the organic one. The occurrence of KBD was at an acceptable level (from the standpoint of hen welfare) in the free-range system, enriched cages without equipment and conventional battery cages (4%, 3% and 1%, respectively), while in the fully equipped enriched cages it was high (39%). One could assume that this high prevalence of KBD in this system is a consequence of a long roosting on a metal perches.

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Sutrisno, Sutrisno, Arief Saepullah, Setiawan Bernadi, and Djoko Kriswanto. "DETERMINATION OF 120MM / 46A PREVENTIVE CARE INTERVALS FOR MINVET BOATS FOR INCREASING THE RELIABILITY OF THE SYSTEM." JOURNAL ASRO 9, no. 2 (September 10, 2018): 11. http://dx.doi.org/10.37875/asro.v9i2.74.

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Most warships, especially corvette types, have a service life of more than twenty years. Intuitively it can be concluded that the components and equipment that have been installed are in the period of wear from the bathtub curve. This paper presents an alternative method in determining the optimum component maintenance intervals for weapons system equipment on ships that have entered wear (wear out). Optimum maintenance costs are determined by optimizing the component maintenance interval with objective functions to minimize the total cost of increasing reliability. The reliability of the system is achieved by increasing the reliability index of its constituent components. Weibull ++ is used to obtain parameters that are appropriate for each damage distribution, while Excel Solvers are used to calculating optimal maintenance intervals. In this writing, a case study will be carried out on the components of Bofors cannon laying gear TAK 120MM / 46A

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Shao, Jingyi, Juan Ning, and Yangyang Liu. "Design of Real-Time Database for the Vacuum Cold-Black Environment Simulator." MATEC Web of Conferences 232 (2018): 02034. http://dx.doi.org/10.1051/matecconf/201823202034.

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There is an urgent need to develop a real-time database (RTDB) to handle large amounts of real-time data, to realize process monitoring of vacuum cold-black environment simulation, cold-black environment data acquisition, fault processing, data storage, etc. This paper conducts real-time database design through network architecture, functional modules, communication interfaces, data management, and transaction scheduling. Simulation test and associated debugging test show that the real-time database can efficiently process large data volume, and the data interaction efficiency is greatly improved to meet the needs of space environment simulation equipment, laying a solid data foundation for subsequent applications.

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Kaukonen, Eija, and Anna Valros. "Feather Pecking and Cannibalism in Non-Beak-Trimmed Laying Hen Flocks—Farmers’ Perspectives." Animals 9, no. 2 (January 30, 2019): 43. http://dx.doi.org/10.3390/ani9020043.

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Pecking-related problems are common in intensive egg production, compromising hen welfare, causing farmers economic losses and negatively affecting sustainability. These problems are often controlled by beak trimming, which in Finland is prohibited. An online questionnaire aimed to collect information from farmers about pecking-related problems in Finnish laying hen flocks, important risk factors and the best experiences to prevent the problems. Additionally, the farmers’ attitudes towards beak trimming were examined. We received 35 responses, which represents about 13% of all Finnish laying hen farms with ≥300 laying hens. The majority of respondents stated that a maximum of 5–7% incidence of feather pecking or 1–2% incidence of cannibalism would be tolerable. The majority of respondents (74%) expressed that they would definitely not use beak-trimmed hens. Only two respondents indicated that they would probably use beak-trimmed hens were the practice permitted. Among risk factors, light intensity earned the highest mean (6.3), on a scale from 1 (not important) to 7 (extremely important). Other important problems included those that occurred during rearing, feeding, flock management and problems with drinking water equipment (mean 5.9, each). The most important intervention measures included optimal lighting and feeding, flock management, and removing the pecker and victim. Concluding, Finnish farmers had strong negative attitudes towards beak trimming. The study underlines the importance of flock management, especially lighting and feeding, in preventing pecking problems and indicates that it is possible to incorporate a non-beak-trimming policy into sustainable egg production.

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AVERIKHINA, Tetiana, Maryna BURIACHENKO, and Valeriia VASYLIEVA. "Modern trends of the world market of electrical equipment." Economics. Finances. Law, no. 6/1 (June 30, 2021): 5–9. http://dx.doi.org/10.37634/efp.2021.6(1).1.

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Introduction. The world market of electrical equipment is developing very fast. There are many companies in the market that sell electrical equipment, among them there are companies that occupy leading positions. Today, the world market of energy engineering is estimated at 87 billion dollars per year, based on the structural dynamics of growth, the annual volume can reach 110-115 billion dollars per year until 2025. The global market for energy equipment service in 2020 is 31.7 billion dollars, including: LTSA (long-term service) 47 %, modernization – 20 %, field service – 24 %, engineering – 9 %. The purpose of the paper is to analyze the world market of electrical equipment, determine sales, business growth. The list of leaders in electrical equipment on the world market is considered. Results. The main trends in the world today are the following areas: development of DC transmission system, cable lines for underwater laying and cable for connections of renewable energy sources to reduce energy transmission costs through the capabilities of existing transmission lines, through network voltages and innovative design solutions and installation methods. The amendment for these trends shows us the world leaders in the electrical market, such as Legrand, Schneider Electric, ABB, Siemens, DEKraft, SASSIN, EKF, etc., R&D costs are 3.5–5 % of profits (over 60 years). Thus, we can conclude that the global market for cable networks is developing rapidly. This market is expected to grow in the development of smart grid technologies, renewable energy generation and initiatives to modernize the transmission and distribution system. Conclusion. That the global cable ladder market is developing rapidly. This market is expected to grow in the development of smart grid technologies, renewable energy cultivation and government initiatives to modernize transmission and distribution systems.

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Prabhakar, Shweta, AK Singhal, and Shikha Vardhan. "Technical Specification and Bid Evaluation: Major Bottlenecks in Equipment Procurement in a Public Sector Tertiary Care Hospital." International Journal of Research Foundation of Hospital and Healthcare Administration 2, no. 2 (2014): 103–10. http://dx.doi.org/10.5005/jp-journals-10035-1023.

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ABSTRACT Introduction The innovation of modern medical equipment with wide diversity has contributed immensely in improving the quality of healthcare and state of health profile of nations. For effective and efficient control on procurement of medical equipment, it is required to control the lead time (internal) as limited scope exists in case of external lead time. Objectives The study was conducted to analyze the lead time with an aim to identify the issues/bottlenecks and to suggest the appropriate remedial measures in a public sector Tertiary care Hospital. Materials and methods A retrospective exploratory study was undertaken. A total of 50 such capital equipment was procured in this hospital during March 2007 to 2010 (3 years) were included in this study. Results It was observed that the procurement procedure in public sector tertiary care hospital is as per the standard guidelines prescribed by Government of India in General Financial Rules and guidelines issued by MOHFW and DGHS in this regard. The lead time analysis showed that there is a variation in the total lead time, internal lead time (ILT), external lead time (ELT) and their components. It was observed that ILT2 and ILT4 component constituted around 70% of the total ILT for almost all the equipments under study. In case of ELT, 75% time was consumed by ELT1, i.e. the delivery time and receipt of equipment. Conclusion Since activities in both ILT2 and ILT4, i.e. laying down the technical specification and bid evaluation are the responsibility of the individual department, the overall delay can also be attributed to the individual departments. This is in contrast to the general impression that there is delay on the part of purchase department. On an analysis of lead time as per VED category, it has been concluded that no concept of VED analysis is applied in the procurement of equipment. On further analysis of lead time analysis, it was concluded that the shortest time was taken by proprietary purchase followed by open tender and maximum time in open tender where approval from higher authority was required. How to cite this article Prabhakar S, Singhal AK, Vardhan S. Technical Specification and Bid Evaluation: Major Bottlenecks in Equipment Procurement in a Public Sector Tertiary Care Hospital. Int J Res Foundation Hosp Healthc Adm 2014;2(2): 103-110.

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Chen, Jiankui, Xi Jiang, Wei Tang, Liang Ma, Yiqun Li, YongAn Huang, and Zhouping Yin. "Roll-to-roll stack and lamination of gas diffusion layer in multilayer structured membrane electrode assembly." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 234, no. 1-2 (July 12, 2019): 66–74. http://dx.doi.org/10.1177/0954405419862090.

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A membrane electrode assembly is the core component of a proton-exchange membrane fuel cell stack. It consists of multilayer structured membranes which are flexible, heterogeneous and have variable cross section. To improve the efficiency of membrane electrode assembly processing and manufacturing, a roll-to-roll system with gas diffusion layer is designed. By peeling the protective membrane and the upper and lower gas diffusion layers’ hot-pressing, proton-exchange membrane is manufactured into a five-layer catalyst-coated membrane. Then, the catalyst-coated membrane is manufactured into membrane electrode assembly by multilayer membrane breakpoint die-cutting and laying-off. The system integrates multiple key technologies, including roll-to-roll precise feeding, gas diffusion layer multi-degree accurate operation and multichannel temperature control, to realize the precise positioning of flexible multilayer membrane and brittle gas diffusion layer. The tension inhomogeneity and critical wrinkling tension are modeled for web traveling in the continuous roll-to-roll manufacturing equipment. The proposed roll-to-roll stack and lamination system effectively combines discontinuous hot-pressing, die-cutting, laying-off technics to realize the high-efficiency manufacturing of membrane electrode assembly.

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Yang, Jin Gang, and Jia Fu Xiao. "Improved Plastic-Al Pipe Based System for Refrigeration of Energy Existed in Urban Sewage." Applied Mechanics and Materials 275-277 (January 2013): 2436–40. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2436.

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In order to recover the urban sewage energy ,a lab-scale equipment for the sewage energy recovery based on water source heat pump was developed and researched experimentally .The technique of indirect heat exchange by the plastic-Al pipe to recover the urban sewage energy, i.e., the corrosion of the heat exchanger, laying the foundation for the practical utilization of sewage energy. The experimental results show that the developed system is favorable to the environment protection and energy conservation, satisfying the cooling duty requirement with the average coefficient of performance 4.15 in the open cycle system and the average coefficient of performance 3.64 in the close cycle system.

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Криживець, Євген Олександрович, Олег Борисович Ківіренко, and Володимир Вікторович Комбаров. "АВТОМАТИЗОВАНЕ ВИРОБНИЦТВО ВІДВОДІВ СКЛОПЛАСТИКОВИХ ТРУБОПРОВОДІВ." Aerospace technic and technology, no. 4 (August 31, 2019): 101–9. http://dx.doi.org/10.32620/aktt.2019.4.16.

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A promising direction in the production of high-pressure pipelines is the use of composite materials with special properties. Characteristics of composite products are set by reinforcement schemes and the use of various binders. The stability of the strength characteristics significantly depends on the stability of the process of laying reinforcing fibers. The development of automated technological systems of production, ensuring the stability of the process, is an urgent task. A method of fiberglass pipe bends manufacturing by the method of pre-impregnated tape winding on a folding mandrel. To implement this method the problem of developing technological equipment, equipment and methods of adjustment are solved. The proposed solution provides the formation of a branch from the inner surface. The kinematic scheme of the equipment realizes the rotation of the tape stacker around the axis of the cross-section of the mandrel and the longitudinal-angular displacement of the mandrel relative to the stacker, which provides the possibility of cylindrical and spiral stacking of the tape. The installation of tap winding, which is a three-axis CNC machine that implements the proposed scheme, is described. The rotation of the coils with tape around the mandrel is provided with a hollow rotary axis – stacker. Moving the mandrel relative to the stacker is provided by its installation on a movable platform. Following the proposed method of manufacturing bends, the outer surface of the collapsible mandrel ensures the formation of the inner surface of the branch, including the connecting-butt surfaces. Rules for the choice of the surface of the connector mandrel, ensuring its extraction from the manufactured branch is formulated. A method for programming winding operations has been developed. A method for determining the parameters of the control system of the CNC system is given, which specifies the structure of laying the tape and the wall thickness of the outlet. A procedure is described for setting up a tap manufacturing operation consisting in changing the relative position of the installation elements and the mandrel fixing devices. The use of traditional for CNC systems approaches to adjust the coordinate systems ensures the accuracy of the initial position is not worse than 0.1 mm.

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Kocevski, D., N. Nikolova, and A. Kuzelov. "The influence of strain and age on some egg quality parameters of commercial laying hens." Biotehnologija u stocarstvu 27, no. 4 (2011): 1649–58. http://dx.doi.org/10.2298/bah1104649k.

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The experiment was conducted to evaluate the influence of strain and age on some egg quality parameters (egg weight and egg shell strength) of commercial laying hens. Layers of lines ISA Brown and DeKalb White were examined in period of nine months. Both lines were at same age (28 weeks) and were confined in common facility in battery cages. Laying hens were reared and fed according to standard breeding technology. Once a month 25 eggs of each line were taken to be examined for eggshell strength and egg weight, or in other words, total 450 table eggs were tested. Analises were done in Laboratory for testing egg quality by gaudges Egg Multi Tester EMT 5200 and Egg shell Gauge (Robotmation Co. Ltd., Tokyo, Japan) which have computerised equipment to examine quality and physical characteristics of eggs. Statistic analyses on results were done by computer sub-programme ANOVA and Fisher's LSD test to determine the level of statistical significant difference between examined factors. Egg weight was under significant impact of age (P ? 0,05), but not under the influence of strain, although eggs of ISA Brown line were insignificantly heavier than eggs of DeKalb White line. Eggs were heaviest at layers with older age, while they were lightest at younger birds. The results have shown significant differences (P ? 0,05) in eggshell strength compared to line influence (genotype) and months of age. Eggs from ISA Brown laying hens had much better and eggshell strength than those eggs from DeKalb White. Correlations between eggshell strength and egg weight were with significant (R < 0,05) negative value, which indicating that with increasing egg weight decreases of eggshell strength.

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Wang, Xuewen, Bo Li, Shaowei Wang, Zhaojian Yang, and Liu Cai. "The transporting efficiency and mechanical behavior analysis of scraper conveyor." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 18 (September 29, 2017): 3315–24. http://dx.doi.org/10.1177/0954406217734002.

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Scraper conveyor is the main equipment for underground coal transportation, and its high-efficiency and smooth operation is of great significance to safety production. This study simulated the process of transporting bulk coal by the scraper conveyor using the discrete element method. Transporting efficiency of scraper conveyor affected by the chain speed, static frictional coefficient, particle size, and laying angle was studied. Then the relationship between the chain speed, static frictional coefficient and the chute wear was explored. The stress and deformation characteristics of the chute during the transportation were studied by coupling the discrete element method and finite element method. Results showed that the mass flow rate changed significantly with the chain speed and static frictional coefficient, while it varied slightly with the change of particle size and laying angle; the higher chain speed and larger bulk coal led to more serious wear of the chute, and large stress mainly concentrated at the direct contact area and the area under the impact load from the bulk coal. Therefore, when designing the chute structure, it is necessary to ensure the wear resistance and strength of the contact area on the chute. The results could provide a theoretical basis for structural optimization of scraper conveyor.

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Vdovichenko, Oleksand, and Artem Perepelitsyn. "Technologies for building systems of remote lining of communication lines: a practical example of implementation." RADIOELECTRONIC AND COMPUTER SYSTEMS, no. 2 (June 2, 2021): 31–38. http://dx.doi.org/10.32620/reks.2021.2.03.

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The subject matter of study in this article is ways to build systems for remote laying of communication lines and solve the problem of their implementation. The goal is to simplify the process of developing robotic systems to solve applied problems. The tasks to be solved are to consider technologies of laying and to define the role of the robotic decisions used in them; consider and analyze existing compact solutions; consider existing tools and kits for rapid creation and testing of electromechanical systems; describe the features of conceptual and practical implementations of the system. According to the tasks, the following results were obtained. The existing methods and equipment for laying communication lines are analyzed. The types of lines placement according to the method and working conditions is considered. Standard equipment and experimental or less common equipment samples are analyzed. The results of a comparative analysis of the currently most well-known robotic solutions used to automate the placement of communications are presented. The existing robotic compact solutions the functionality of which is similar to the object of research are considered in detail. Three devices from various manufacturers designed to perform specialized tasks and has similar specificity of work including the need to move in confined spaces in the vertical and horizontal directions and deliver a payload to the destination are considered. The key differences in the considered devices including modular architecture, simplification of the electrical component of the system due to the frame, adaptability, and adaptability of the device to various environmental conditions are given. The quantitative characteristics of the devices such as the speed of movement, the size of the device itself, and its weight are analyzed. A technological stack that allows the rapid prototyping of a system with similar functions is considered and analyzed. The results of the classification of three sets for the rapid construction of a digital system with an indication of their advantages and disadvantages are given. The qualitative characteristics of development tools such as the prevalence of components, the complexity of use, and their cost are analyzed. An approach for the fast construction of a digital system based on modular reprogrammable components is proposed. Conclusions. The areas of application of existing solutions, the way of their implementation, and unique features that can be useful in solving the problem of placement of communications are considered. The scientific novelty of the results obtained is as follows: a unique architecture of a robot for placement of communication lines with movable segments for movement in space is proposed; a set of programmable modules as part of the developed system is presented. The process of choosing electronic components for building a system is discussed. A digital interface for interacting components and the robot as a whole is described. The possibility of reprogramming the developed robot to restore its working capacity is devised.

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Suponyev, Vladimir Nikolaevich. "Determination of the algorithm of choosing the technologies and working equipment for efficient formation of wells when laying underground utilities." Bulletin of Kharkov National Automobile and Highway University 2, no. 88 (December 18, 2020): 93. http://dx.doi.org/10.30977/bul.2219-5548.2020.88.2.93.

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Baksir, Abdurrachman, Nebuchadnezzar Akbar, M. Yunus Hi Abbas, and Iswandi Wahab. "PENGOLAHAN IKAN DI DAERAH ALIRAN SUMBER AIR PANAS BUMI DI DESA PAYO KABUPATEN HALMAHERA BARAT PROVINSI MALUKU UTARA." JURNAL PERIKANAN TROPIS 7, no. 1 (June 27, 2020): 45. http://dx.doi.org/10.35308/jpt.v7i1.1935.

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Potential geothermal water is located on the coast of West Halmahera Regency. The geothermal potential is utilized by the community as a medium of traditional medicine and local tourism. Utilization of hot water sources as a fish processing media has not been done. The purpose of this study was to determine fish processing using a modified oven in geothermal water flow. The research material is anchovy (Stolephorus indicus) measuring 10 cm. Fish drying equipment is made closed (airtight) as a whole. The process of fish maturation is done by laying the fish on the base located in the oven. The results showed that the fish cooked at room temperature 2 hours at room temperature 21 oC with geothermal water flow temperature 49oC-51 oC.

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Mrosovsky, N., Stephanie Kamel, Alan F. Rees, and D. Margaritoulis. "Pivotal temperature for loggerhead turtles (Caretta caretta) from Kyparissia Bay, Greece." Canadian Journal of Zoology 80, no. 12 (December 1, 2002): 2118–24. http://dx.doi.org/10.1139/z02-204.

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Pivotal temperature (the constant temperature giving 50% of each sex) for two clutches of loggerhead sea turtles (Caretta caretta) from Kyparissia Bay, Greece, was 29.3°C. Pivotal incubation duration (the time from laying to hatching giving 50% of each sex) was 52.6 days. These values are close to those obtained for this species in Brazil and the United States, providing further evidence that these characteristics are relatively conservative in different populations. Methodological differences between different experiments and limitations on accuracy of equipment make the detection of small differences problematic. Comparison of incubation durations in the field with the pivotal durations obtained here suggest that hatchling sex ratio on some Mediterranean beaches is female biased but probably varies considerably within this region.

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Aday, Shaker H., Mohammed A. Abdulkareem, and Sadiq J. Muhsin. "Effect of the Manure Levels , Depth and Method of Applying Using Ditch Opener and Manure Laying Machine on Some of Soil Physical Properties." Basrah Journal of Agricultural Sciences 30, no. 1 (June 30, 2017): 13–25. http://dx.doi.org/10.37077/25200860.2017.9.

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A field experiment was carried out in silty loam soil at Agricultural research station, College of Agriculture during the corn growing season of 2015. The aim of study was to determine the effect of manure (cattle residues) levels (0, 20 and 40 ton ha-1), the depth of manure application (10, 20 and 30 cm), and the method ofmanure application (mixing with soil and subsoil laying) on soil bulk density and soil water content. The manure was added at certain treatments by using a ditch opener and manure laying machine which was designed and manufactured in the Agriculture Machines and Equipment Department, College of Agriculture, University of Basrah in 2015. The field was plowed perpendicularly, and the treatments were arranged in RCBD with split-split plot design with three replicated using drip irrigation system. Corn (Zea mays L.) seeds were planted on the manure rows. All plots received NPK fertilization with the same levels. At the end of growing season, soil samples (0-30 cm) were collected to examine soil bulk density and soil water content. The results showed that, lower bulk density and higher water content were obtained at level of 40 ton ha-1compared with the levels of 0 and 20 ton ha-1. The soil bulk density decreased from1.23 to 1.20 Mg m-3 and the soil water content increased from 26.33 to 30.23 % whenthe depth of application increased from 10 to 30 cm. Mixing manure with soil resulted in lower value of bulk density and higher value of water content compared with subsoil laying method. Mixing manure with soil down to the depth of 30 cm amount of 40 ton ha-1 improved the soil bulk density which reached lower value of 1.14 Mg m-3 and soilwater content increased to 36.19% among all other treatments.

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VASILYEVA, Maria Aleksandrovna. "Magnetic peristaltic pumps for stowing operations." NEWS of the Ural State Mining University 1, no. 1 (March 23, 2020): 150–55. http://dx.doi.org/10.21440/2307-2091-2020-1-150-155.

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Relevance of the work. The use of laying the workings is intended to increase the safety of mining operations, namely, controlling mining pressure, reduce mineral loss during excavation, prevent the occurrence of underground fires, and reduce the risks of destruction of objects in residential areas. Methodology of the work. The article is devoted to the study of the possibility of applying the system of peristaltic transportation of pasty slurries using the energy of a traveling magnetic field to work on the laying of the goaf. Taking into account the features of the materials used as the basis for filling mixtures, the specifics of the process of moving the latter to the place of laying, innovative technologies for transporting filling mixtures are becoming increasingly important. Results and scope. A fundamentally new approach to the transportation of liquid and viscous media is the use of low-frequency magnetic peristaltic pumps. The design of this pump involves the use as an executive body of the working channel, made of a magneto-active elastomer. By its extension under the influence of a traveling magnetic, periodic waves of local deformation pass, moving the filling mixture. Conclusions. The rejection of the traditional roller system, which presses the channel, and the replacement of the main executive body of the pump with the working channel, the structuring flow and preventing its separation, will expand the scope of application of pumping equipment during filling operations. The pressure developed by the pump depends on the energy characteristics of the traveling magnetic field. Studies have shown that the speed of movement of a wave of local deformation when moving various materials is sufficiently stable and slightly depends on the viscosity of a substance.

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Milko, D. O., O. H. Sclyar, R. V. Sclyar, G. P. Pedchenкo, D. P. Zhuravel, and V. V. Bratishko. "RESULTS OF THE NUTRITIONAL PRESERVATION RESEARCH OF THE ALFALFA LAYING ON STORAGE WITH TWO-PHASE COMPACTION." INMATEH Agricultural Engineering 60, no. 1 (April 30, 2020): 264–74. http://dx.doi.org/10.35633/inmateh-60-30.

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In modern manufacturing of livestock production, the outstanding value is allocated for a food supply. The main criterion for evaluating the quality of feed components is the nutrient content of the feed ration. However, in the process of the storage, the maintenance of the nutritious substances decreases for various reasons that are leading to decreasing livestock efficiency and increasing the cost. The results of the use of a two-phase compaction of the forage vegetable components on the example of the alfalfa are given in the article. The dependence coefficient of the nutritional preservation on density of the alfalfa put on storage are also presented in this article. The applied method and the results obtained can be used in the development and design offices to create new equipment based on the two-phase compaction of the fodder vegetable component mixes by preparing them for storage. The application of this method brings to decreasing losses of nutrients in the storage process which reduces the components cost in total with increasing additional weights and the milk productivity.

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Journal articles on the topic 'Laying equipment'

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