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Journal articles on the topic 'Complex Machinery'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Benčat, Ján, Daniel Papán, and Mária Stehlíková. "Dynamic Response of Buildings and Structures due to Microtremor Part 1: Industrial Machines Effects." Advanced Materials Research 969 (June 2014): 125–32. http://dx.doi.org/10.4028/www.scientific.net/amr.969.125.

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In this paper a dynamic characterization and vibration analysis has been used for the detection and identification of the machine processing condition and the effect of the production machinery vibration on building complex structures and production process. For sensitive process machines and structures dynamic response due to production machinery calculation procedures was applied using experimental input data via spectral analysis. The dynamic analysis of the cutting production machinery with extreme vibration level is described, too.

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2

Reinert, Dietmar, Emmanuelle Brun, and Eva Flaspöler. "Complex machinery needs simple explanation." Safety Science 45, no. 5 (June 2007): 579–87. http://dx.doi.org/10.1016/j.ssci.2007.01.003.

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3

Kumar, M. Sarath, and B. S. Prabhu. "Rotating Machinery Predictive Maintenance Through Expert System." International Journal of Rotating Machinery 6, no. 5 (2000): 363–73. http://dx.doi.org/10.1155/s1023621x00000348.

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Modern rotating machines such as turbomachines, either produce or absorb huge amount of power. Some of the common applications are: steam turbine-generator and gas turbine-compressor-generator trains produce power and machines, such as pumps, centrifugal compressors, motors, generators, machine tool spindles, etc., are being used in industrial applications. Condition-based maintenance of rotating machinery is a common practice where the machine's condition is monitored constantly, so that timely maintenance can be done. Since modern machines are complex and the amount of data to be interpreted is huge, we need precise and fast methods in order to arrive at the best recommendations to prevent catastrophic failure and to prolong the life of the equipment. In the present work using vibration characteristics of a rotor-bearing system, the condition of a rotating machinery (electrical rotor) is predicted using an off-line expert system. The analysis of the problem is carried out in an Object Oriented Programming (OOP) framework using the finite element method. The expert system which is also developed in an OOP paradigm gives the type of the malfunctions, suggestions and recommendations. The system is implemented in C++.

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4

Ignatov, V. I., V. S. Gerasimov, Z. N. Mishina, and D. V. Andreeva. "Analysis of the state of agricultural equipment in the agroindustrial complex." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 8 (August 1, 2020): 7–22. http://dx.doi.org/10.33920/sel-10-2008-01.

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The article presents the results of studies aimed at determining the criterion for the further use of agricultural machinery that has reached the limit state: to carry out major repairs or dispose of it, as much as possible to save material resources, as required by the principles of the circular economy. Analysis and review of the works of domestic and foreign scientists, as well as the results of studies to identify the reasons for the lack of an effective mechanism for determining the limit state of a particular agricultural machine and the criterion for the onset of this condition. To solve the tasks, the technical condition and cost of the components included in the equipment supplied to the repair enterprises of the industry in 12 regions of Russia were studied. Was determined based on changes in the structure of parts with different periods of use of agricultural machinery. The results showed that the price of repair of the machine depends on the level of loss of validity of its parts, which were divided into three groups: fit without repair, fit after recovery and scrap, which cannot be restored. Was built based on the prices of capital repair machines and revenue from the sale of components utilized machine when the loss of her life, which allowed to determine the boundaries for further use of the machine, which reached a limit state. It was found that the loss of shelf life of almost all machines now entering the repair facility, is beyond the limits of the state and must be disposed of. The limit state of the machine occurs when the loss of its validity in the range of 0.45 < Г[sub]п∑i[/sub] < 0.5. In this interval, the owner of the machine can choose either of two options for its further use: repair or recycle. When Г[sub]п∑i[/sub] <0,45 preferable overhaul. When Г[sub]п∑i[/sub] > of 0.5 will require disposal, which will provides the greatest possible resource efficiency. An analysis of the research, taking into account past and foreign experience, will justify the direction of the agricultural sector in maintaining high technical readiness of agricultural machinery.

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Du, Feng, Zhi Wei Guan, and Yi Zhou. "Reliability Evaluation for Complex Machinery Products." Key Engineering Materials 480-481 (June 2011): 763–68. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.763.

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For those large-scale and complex mechanical products, considering economy and applicability, these products are impossible to be discarded as soon as they take place malfunction. Generally, they can be reused again and again after be repaired repeatedly, that is, they usually have multi-lifespan. Accordingly, it is very necessary to establish a kind of proper reliability evaluation mode for these complex repairable products. In this paper, the treatment procedure of the reliability test data for these repairable products is researched based on the repairable reliability theory, and the method of model identification about failure distributions law is proposed. In addition, how to reasonably determine or predict product lives by using random process model is also introduced. Finally, an analysis case for putting this mean into practice is expounded. This method for product reliability analysis is suitable to most large-scale and complex mechanical products.

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6

Shang Guan, Tong Ying, Yang Lian, and Di Wu. "The Application of SolidWorks in Bridge Erecting Machine’s Structure Design." Advanced Materials Research 472-475 (February 2012): 678–82. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.678.

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We have take the design of the complex machinery equipment DF900 erecting machine as an example discussed SolidWorks and its module COSMOSWork, COSMOSMotion’s application in bridge erecting machine’s development and design. We established bridge erecting machine’s 3D model, optimized the product’s structure and bridge through-hole speed, provide calculated data for safe and reliable operation of the equipment by finite element calculation. And have provided some certain reference value for use SolidWorks on large, complex mechanical product’s design, research and safety evaluation.

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7

Pačaiová, Hana, Miriam Andrejiová, Michaela Balažiková, Marianna Tomašková, Tomáš Gazda, Katarína Chomová, Ján Hijj, and Lukáš Salaj. "Methodology for Complex Efficiency Evaluation of Machinery Safety Measures in a Production Organization." Applied Sciences 11, no. 1 (January 5, 2021): 453. http://dx.doi.org/10.3390/app11010453.

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Even though the rules for the free circulation of machinery within the European Union (EU) market have existed for more than 30 years, accidents related to their activities have constantly been reaching significant value. When designing a machine, the design must stem from a risk assessment, where all stages of its life cycle and the ways to use it must be taken into consideration. In industrial operations with old machinery, despite fulfilling its function reliably, the safety level is below the developing requirements for safe operations. The proposed methodology to assess machinery safety conditions comes from the assumption of the proper application of risk assessment steps and their effectiveness in risk reduction mainly through implementing both effective and efficient preventive measures. The objective of the research applied in three operations was to verify the methods concerning machinery safety and its management. The created methodology, based on 19 requirements for safety, evaluates the level of current measures using a criterion of the current safety status and the total effectiveness of safety measures. Its output is the assessment of the efficiency level of the implemented safety measures of each machine as well as of the whole operation.

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8

Golubev, Ivan Grigorievich. "Digitalization and use of artificial intelligence technologies in technical modernization of the agro-industrial complex." E3S Web of Conferences 291 (2021): 04006. http://dx.doi.org/10.1051/e3sconf/202129104006.

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The article presents the prospects of digitalization and use of artificial intelligence technologies in the technical modernization of the agro-industrial complex (AIC). In order to improve the efficiency of agricultural industry, including the productivity and quality of products in such sectors as crop production, livestock, processing of agricultural products, a transition to innovative technologies is required. Their use in agricultural production makes it possible to significantly competitiveness of the agricultural sector of the economy of the Russian Federation. To do this, the technical modernization of the agro-industrial complex, which provides for the renewal of its base with domestic agricultural machinery is required. In modern machines, a large number of electronic systems with various sensors are involved. They allow to control the operation of various units, including the internal combustion engine, transmission, work tools and other mechanisms. The use of such systems makes it possible to reduce the cost of maintenance and use of equipment, to monitor the modes of operation and technical condition of equipment around the clock, to conduct repair and maintenance activities as required. The current global trend is the use of remote machine diagnostics systems. They allow service centers and emergency support to diagnose a vehicle at a distance, reducing downtime. In recent years, there has been a trend towards digital solutions in machine maintenance. 3D technologies are promising for repair of agricultural machinery, including restoration and hardening of parts. They can be used to measure the geometric dimensions and determine the physical and mechanical properties of part faces of agricultural machines during the incoming inspection of spare parts and fault detection of parts, by scanning them. The introduction of digital technologies and artificial intelligence in the repair practice will reduce the duration of repair and maintenance actions during the technical service of agricultural machinery and significantly reduce the cost of their implementation.

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9

Kazakbaev, Seisenbek Zaurbekovich, Nurlan Syrymbayevich Karymsakov, Polatbek Kaldibaevich Seytpanov, Murat Musabekovich Bekmuratov, and Alexandr Nikolayevich Shevtsov. "CREATING A COMPLEX INNOVATIVE MACHINERY GRAIN PROCESSING." Theoretical & Applied Science 13, no. 05 (May 30, 2014): 78–83. http://dx.doi.org/10.15863/tas.2014.05.13.12.

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10

R. K. Mofrad, Mohammad. "Mechanobiology of the Nuclear Pore Complex Machinery." Molecular & Cellular Biomechanics 16, S2 (2019): 19–20. http://dx.doi.org/10.32604/mcb.2019.07429.

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11

Du, Guang Yu, Zhen Tan, Wei An, and De Сhun Ba. "Research on Numerical Simulation Method for 3D Complex Flow in Rotating Machinery." Applied Mechanics and Materials 226-228 (November 2012): 52–55. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.52.

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A numerical simulation method with gas-structure interaction to analyze 3D complex flow in rotating machinery was presented and the effects with different aerodynamic turbulence model for gas-structure interaction was also presented. The blades are an important component in rotating machinery. Gas flow is unsteady three-dimensional turbulence motion with transient and anisotropic. Then the gas flow and the vibration of rotating blades interfere with each other, resulting in a complex coupling effect. It affects the machine efficiency directly. For discussing the effects on flow field of the coupling field, the blade model was built. And flow around the blades was simulated by gas-structure interaction with three turbulence models respectively. The turbulence models were standard κ-ε, renormalization group κ-ε and Smagorinsky LES. A feasible method was provided for flow field analysis in rotating machinery.

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12

Hasdiansah, Hasdiansah. "Pembuatan Program Aplikasi Pemeliharaan Mesin Terjadual Di Laboratorium Mekanik Polman Negeri Bangka Belitung." Manutech : Jurnal Teknologi Manufaktur 10, no. 02 (May 20, 2019): 23–30. http://dx.doi.org/10.33504/manutech.v10i02.64.

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Every company wants all its equipment or machinery operating in optimum condition, so that the necessary maintenance activities to fulfill that desire. Management of maintenance activities to be hard to do when the equipment or machines owned by increasingly numerous and complex, and activities increase the number of machines or equipment routinely performed. Therefore needed a system to manage maintenance activities quickly, especially in administration of maintenance of machine or equipment are handled. This program has the ability to manage personal data engines, machinery or equipment maintenance scheduling, managing work instruction sheet, a history of the machine, the data parts, data managing maintenance activities, preventive maintenance and expense reports. System maintenance is made by using a computer-based information system maintenance. In making the program used Microsoft Visual Basic 6.0 and used for the purpose of Microsoft Access database.

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13

Karpenko, O. "ANALYSIS OF DEVELOPMENT OF AGRICULTURAL MACHINERY PRODUCTION FOR GRAIN GROWING IN UKRAINE DURING INDEPENDENCE." Bulletin of Taras Shevchenko National University of Kyiv. Geography, no. 70-71 (2018): 42–49. http://dx.doi.org/10.17721/1728-2721.2018.70.26.

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In the article the research of tendencies of development of agricultural mechanical engineering is conducted. Particular attention was paid to analyzing the peculiarities of the development of agricultural machinery production for grain farming and the trends in the current state of the industry. It was established that the agricultural machinery industry of Ukraine gradually began to revive. The results of the analysis of the development of the production of agricultural machinery for grain farming have made it possible to conclude that it is precisely the investment resources that will lead to the emergence of agricultural machinery, namely the production of machinery for grain production, from the crisis. The volume of import of agricultural products is estimated. An important place in the work is the assessment of the availability of grain machinery. The paper formulates the main tasks of enterprises for the production of agricultural machinery for the grain industry. The agrarian sector for Ukraine has always been one of the priority areas of both foreign economic and domestic economic development. Almost in all countries of the world now focus on the development of the agro-industrial complex, because the problem of providing the world’s population with food is extremely relevant. Ukraine has great prospects in this direction. But they are based primarily on the very high fertility of the soil that our state has. Ukraine has favorable weather and climatic conditions and historically inherited experience of our country’s population to produce food, work on the ground. Thanks to these factors, Ukraine was originally called the world’s breadbasket. Cereal product complex is one of the largest and most important in all agroindustrial complex of Ukraine. It is an important part of the agricultural complex. The development of the grain economy not only provides the population with grain products, but also can stabilize the socio-economic situation in the country. During the entire period of development of society in the territory of our state, much attention was paid to increasing the yield of grain. It is also possible to achieve an increase in gross collections of grain through the improvement of tools. That is why the development of the agricultural machinery industry can be considered the longest of all the well-known fields of machine building [2], since the production of machinery for the grain-product complex is one of the important components of the grain industry in general. Machine-building enterprises for the grain-product complex are located in the main grain areas. The development of the production of machinery in the grain-harvesting complex in Ukraine after the election of its independence has undergone significant changes, and the problem of the production of certain types of grain machinery has become very acute.

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14

Duman, Joseph G., and John G. Forte. "What is the role of SNARE proteins in membrane fusion?" American Journal of Physiology-Cell Physiology 285, no. 2 (August 2003): C237—C249. http://dx.doi.org/10.1152/ajpcell.00091.2003.

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Soluble N-ethylmaleimide-sensitive factor activating protein receptor (SNARE) proteins have been at the fore-front of research on biological membrane fusion for some time. The subcellular localization of SNAREs and their ability to form the so-called SNARE complex may be integral to determining the specificity of intracellular fusion (the SNARE hypothesis) and/or serving as the minimal fusion machinery. Both the SNARE hypothesis and the idea of the minimal fusion machinery have been challenged by a number of experimental observations in various model systems, suggesting that SNAREs may have other functions. Considering recent advances in the SNARE literature, it appears that SNAREs may actually function as part of a complex fusion “machine.” Their role in the machinery could be any one or a combination of roles, including establishing tight membrane contact, formation of a scaffolding on which to build the machine, binding of lipid surfaces, and many others. It is also possible that complexations other than the classic SNARE complex participate in membrane fusion.

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15

Mel'nikov, D. G., Yu A. Tsarev, and Ye Yu Adamchukova. "The point of obsolescence of complex agricultural machinery." Traktory i sel'hozmashiny 1, no. 4 (2020): 76–80. http://dx.doi.org/10.31992/0321-4443-2020-4-76-80.

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Each agricultural producer is always faced with the problem of how long complex agricultural equipment should be used, when it will be the need to buy a new one, or in general, when the need is to switch to a new direction. Complex agricultural machinery is expensive, maintenance and re-pairs of it are expensive as well, and our market economy is unpredictable. The solution to this problem is considered on the example of winter wheat harvesting with a self-propelled fourth-class combine harvester. The following theoretical prerequisite for solving the abovementioned problem is proposed. An agricultural producer purchased a combine harvester for 5 million rubles, and then the costs associated with its operation are summed up over the years: for fuels and lubricants, wages for machine operators, costs for repair and maintenance of the combine, costs for spare parts, cultivation and grain harvesting, taxes, etc. After the fifth year of operation already, according to the in-structions, the combine harvester requires overhaul, and the costs of repair and maintenance are growing over time. The profit of an agricultural producer is formed as the difference between costs of the sale of grain. Over time, the productivity of the combine harvester decreases and at some point the operation of the combine becomes unprofitable; this is the point of obsolescence of the machine, when the agricultural producer must decide either to buy a new harvester or to change his business.

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16

Flechsig, Holger, and Yuichi Togashi. "Designed Elastic Networks: Models of Complex Protein Machinery." International Journal of Molecular Sciences 19, no. 10 (October 13, 2018): 3152. http://dx.doi.org/10.3390/ijms19103152.

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Recently, the design of mechanical networks with protein-inspired responses has become increasingly popular. Here, we review contributions which were motivated by studies of protein dynamics employing coarse-grained elastic network models. First, the concept of evolutionary optimization that we developed to design network structures which execute prescribed tasks is explained. We then review what presumably marks the origin of the idea to design complex functional networks which encode protein-inspired behavior, namely the design of an elastic network structure which emulates the cycles of ATP-powered conformational motion in protein machines. Two recent applications are reviewed. First, the construction of a model molecular motor, whose operation incorporates both the tight coupling power stroke as well as the loose coupling Brownian ratchet mechanism, is discussed. Second, the evolutionary design of network structures which encode optimal long-range communication between remote sites and represent mechanical models of allosteric proteins is presented. We discuss the prospects of designed protein-mimicking elastic networks as model systems to elucidate the design principles and functional signatures underlying the operation of complex protein machinery.

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17

Titova, L. L., and I. M. Nichai. "Methodological provisions of technical level of use of complex of agricultural machines." Naukovij žurnal «Tehnìka ta energetika» 11, no. 3 (November 18, 2020): 151–62. http://dx.doi.org/10.31548/machenergy2020.03.151.

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The article presents an analysis of modern scientific achievements in multi-criteria optimization of technical solutions and existing regulations and identifies comprehensive criteria for evaluating the agricultural machinery; evaluation of their effectiveness in relation to the current goals and objectives for use in government agencies, manufacturing enterprises, research institutions, design organizations in the justification and determination of the best technologies and machines for production, in justifying the creation of new and improvement of existing technologies cars, when justifying the purchase of foreign equipment. This approach forces to solve any scientific and technical problem to create a new product to consider this product not only at the stage of research and development or production, but also during the entire possible period of further existence of this product, ie throughout product life cycle. These methodological provisions apply to agricultural production – production technologies, technological complexes of machines, machines and machine-tractor units used in crop production and agricultural production.

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18

Mayer, B. J. "Clues to the evolution of complex signaling machinery." Proceedings of the National Academy of Sciences 105, no. 28 (July 10, 2008): 9453–54. http://dx.doi.org/10.1073/pnas.0804669105.

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19

Bakelar, J., S. K. Buchanan, and N. Noinaj. "The structure of the -barrel assembly machinery complex." Science 351, no. 6269 (January 7, 2016): 180–86. http://dx.doi.org/10.1126/science.aad3460.

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20

Iwatsubo, Takeshi. "The γ-secretase complex: machinery for intramembrane proteolysis." Current Opinion in Neurobiology 14, no. 3 (June 2004): 379–83. http://dx.doi.org/10.1016/j.conb.2004.05.010.

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21

Lee, Chong-Won. "A complex modal testing theory for rotating machinery." Mechanical Systems and Signal Processing 5, no. 2 (March 1991): 119–37. http://dx.doi.org/10.1016/0888-3270(91)90019-2.

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22

Pal, Sumit, Surashree Goswami, and Dibyendu Das. "Cross β amyloid assemblies as complex catalytic machinery." Chemical Communications 57, no. 62 (2021): 7597–609. http://dx.doi.org/10.1039/d1cc02880d.

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23

Zotov, Alexei, and Vadim Gritsenko. "Partial failure diagnostics system in complex agricultural machinery." E3S Web of Conferences 273 (2021): 07002. http://dx.doi.org/10.1051/e3sconf/202127307002.

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The authors presented a work that raises the reliability of agricultural machinery, the organization of diagnostic procedures and the effective use of units by reducing downtime. It is proposed to organize the diagnostic process according to the hierarchical principle and use the expert system to analyze the state of the object in the current situation. The diagram of the structure of the diagnostic system using the center of the state analysis is presented. The article is of interest to specialists working in the field of operating grain harvesters and increasing the productivity of agricultural work.

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24

Zhang, Chao, and De Qing Liu. "Research on Rotating Machinery Vibration Fault Based on Support Vector Machine." Advanced Materials Research 139-141 (October 2010): 2603–7. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.2603.

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The research on support vector machine in fault diagnose has already obtained a lot of breakthroughs, such as the mode identify problems in small sample, nonlinearity, high dimension and so on. However, there are some limitations in the traditional support vector machine. In this paper, in allusion to the current rotating machinery fault diagnosis problem, the basic principles of support vector machine are studied. According to the complex characteristics of rotating machinery vibration fault, a fault extraction method is proposed based on the K-L transform. Multi-classification algorithm of support vector machine is improved, and the algorithm is used to analyze the rotating machinery vibration. By using its capabilities of model identification and system modeling, the initial symptom, occurrence, development of the typical faults are dynamically analyzed. These provide new ideas and methods for fault diagnosis of rotating machinery.

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YALYNA, O. "DIAGNOSTICS AND TECHNOLOGICAL MAINTENANCE OF AGRICULTURAL MACHINES USED IN AGRICULTURAL COMPLEX." HERALD OF KHMELNYTSKYI NATIONAL UNIVERSITY 295, no. 2 (May 2021): 123–26. http://dx.doi.org/10.31891/2307-5732-2021-295-2-123-126.

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The article considers the current state of the system of maintenance and repair of agricultural machinery, shows the analysis of the existing system and its impact on the economic efficiency of production in the agro-industrial complex. The current state of instrumentation, electronics and computer technology can significantly increase and expand the possibilities of both diagnosing and forecasting based on it. The combination of these capabilities with the progress of agricultural machinery ensures its reliable, highly productive and economical operation. It is established that of great importance in the production of crop and livestock products is the qualified use of agricultural machinery, including its diagnosis, maintenance and technological maintenance and repair. The quantity and quality of the received production, its competitiveness, labor costs, fuel consumption and degree of influence on environment depend on quality and timeliness of carrying out service – diagnostics at technical and technological service. Improving the use of agricultural machinery and reducing the cost of its operation provides the use of technical diagnostics of machines as an information basis for the management of maintenance and repair processes. The practice of using diagnostic tools indicates the possibility of reducing operating costs. This is achieved by increasing the actual resource used, reducing the number of repairs and saving spare parts. To effectively apply existing diagnostics and development of new, engineering and technical workers of agricultural enterprises must have knowledge that reveals the fundamental side of the diagnosis. Measures of preventive influences which provide maintenance of necessary indicators of reliability and working capacity of cars during time of use are executed on a scientific basis, practical use and research of processes of wear and other deviations of details are developed.

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Ignatov, V. I., V. S. Gerasimov, and D. V. Andreeva. "Features and problems of formation of the system for utilization of agricultural equipment "Agricultural recycling" in AIC." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 10 (October 1, 2020): 69–78. http://dx.doi.org/10.33920/sel-10-2010-11.

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In the agro-industrial complex of Russia, the share of the main types of agricultural machinery with a service life of more than 10 years is: for tractors — 61 %, grain harvesters — 47, forage harvesters — 42 %. Due to the extremely low provision of the Russian agro-industrial complex with modern tractors, the energy supply per 100 hectares of sown area is 150 hp. with technologically required 300–350 hp. On cattle farms, the level of complex mechanization of technological processes has decreased by 23 . Within the standard period, no more than 20–25 % of technological equipment is used and only 5–8 % meet modern requirements. The problem of updating the park of domestic agricultural machinery and livestock equipment can be considered only in a single complex with the disposal of these machines and equipment.

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Kobayashi, Takuya, Yamato Ishida, Tomoaki Hirano, Yohei Katoh, and Kazuhisa Nakayama. "Cooperation of the IFT-A complex with the IFT-B complex is required for ciliary retrograde protein trafficking and GPCR import." Molecular Biology of the Cell 32, no. 1 (January 1, 2021): 45–56. http://dx.doi.org/10.1091/mbc.e20-08-0556.

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Little is known about how the IFT-A and IFT-B complexes of the intraflagellar transport machinery cooperate to mediate ciliary protein trafficking. We show that IFT144-IFT122 and IFT88-IFT52-IFT46 contribute to the IFT-A-IFT-B interface and that the interaction of IFT-A with IFT-B is required for retrograde trafficking of the IFT machinery and ciliary entry of G protein-coupled receptors.

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Ignatov, V. I., V. S. Gerasimov, Z. N. Mishina, and D. V. Andreeva. "Research of the state of the engineering service in AIC and use of new technologies." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 1 (January 1, 2021): 3–10. http://dx.doi.org/10.33920/sel-10-2101-01.

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The article presents the results of analysis and research on the state of the engineering service of the agro-industrial complex, as well as the analysis of the "Strategy for the development of agricultural engineering in Russia for the period up to 2030" from the standpoint of its eff ectiveness in providing the agro-industrial complex of the Russian Federation with the necessary amount of agricultural machinery. Assess the actual state of the agricultural machine-building industry and the needs of the Russian Federation agro-industrial complex in updating the machine park. To substantiate the organizational and technological models for maintaining the performance of agricultural machinery, primarily energy-rich, in modern operating conditions using new technologies. The analysis of publications of domestic and foreign authors, refl ecting the state of the engineering service of the agroindustrial complex. The factors that determine the choice of an organizational and technological model for maintaining the operability of equipment in relation to the conditions of the agro-industrial complex of Russia are investigated. Received and processed statistical information on the current state of the equipment park and enterprises of the repair and service base of the agro-industrial complex. Based on the results of the study, the state of the fl eet of agricultural machinery used was determined, as well as the ability of the repair and maintenance base of the agro-industrial complex to ensure its performance. The results of the study showed that the implementation of the positive capabilities of various life support systems of equipment and systems for maintenance and repair is hampered by the unstable position of participants in the processes of production, use and renovation of equipment. It was also revealed that the fl eet of equipment is outdated, requires large volumes of maintenance and repair, and the repair and maintenance base of the agro-industrial complex in Russia as a whole is not able to fulfi ll the tasks of providing the necessary level of technical assistance when using agricultural machinery

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Li, Xiaochuan, Fang Duan, David Mba, and Ian Bennett. "Multidimensional prognostics for rotating machinery: A review." Advances in Mechanical Engineering 9, no. 2 (February 2017): 168781401668500. http://dx.doi.org/10.1177/1687814016685004.

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Determining prognosis for rotating machinery could potentially reduce maintenance costs and improve safety and availability. Complex rotating machines are usually equipped with multiple sensors, which enable the development of multidimensional prognostic models. By considering the possible synergy among different sensor signals, multivariate models may provide more accurate prognosis than those using single-source information. Consequently, numerous research papers focusing on the theoretical considerations and practical implementations of multivariate prognostic models have been published in the last decade. However, only a limited number of review papers have been written on the subject. This article focuses on multidimensional prognostic models that have been applied to predict the failures of rotating machinery with multiple sensors. The theory and basic functioning of these techniques, their relative merits and drawbacks and how these models have been used to predict the remnant life of a machine are discussed in detail. Furthermore, this article summarizes the rotating machines to which these models have been applied and discusses future research challenges. The authors also provide seven evaluation criteria that can be used to compare the reviewed techniques. By reviewing the models reported in the literature, this article provides a guide for researchers considering prognosis options for multi-sensor rotating equipment.

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Kazakova, Vera A., Valentina A. Shinkevich, and Anatoliy V. Dunayev. "Standard for maintenance of agricultural machinery at the level of expertise." Tekhnicheskiy servis mashin, no. 1 (March 1, 2020): 12–19. http://dx.doi.org/10.22314/2618-8287-2020-58-1-12-19.

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Revision of GOST 20793-2009 standard updates the list of normative documents required for certification of agricultural machinery and will contribute to the improvement of methods of organization of maintenance of modernized tractors and agricultural machines, will allow using modern methods of increasing of their resource. (Research purpose) The research purpose is increasing the efficiency of maintenance of agricultural and forestry tractors and other self-propelled agricultural machines in their operation by optimizing the periods of work, the implementation of express control of lubricating oils, the use of built-in diagnostic systems, organoleptic diagnosis by quality characteristics, as well as the introduction in motor and transmission oil of repair friction components using a special technology. (Materials and methods) The authors noted the need for examination of the draft standard by specialists of the engineering service of the agro-industrial complex and agricultural machinery and a detailed analysis of the comments and suggestions received during development of the final version of the draft standard. The draft standard of the first edition was sent for feedback to specialists, interested organizations and enterprises of the Russian Federation, as well as organizations of neighboring countries. (Results and discussion) Authors have reviewed the comments and suggestions; accepted all editorial comments; agreed bibliographic references and aligned the units of measurement; prepared the final version of the GOST 20793 project, corresponding to the conditions of the current state of the machine-technical park and engineering service of the agro-industrial complex. Authors have sent the draft of the final version for editing and approval to Rosstandart. (Conclusion) The introduction of the improved standard will contribute to improving the efficiency and increasing the service life of worn-out units of agricultural machines, reducing the cost of their technical operation. For the first time, the types and basic rules of the maintenance procedure were unified. The implementation of the requirements of the standard will build the processes of work in the field of production and distribution of products and certification, improve the efficiency of technical service in the agro-industrial complex, resource reliability and efficiency of the machine and tractor fleet.

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Puninskiy, V. S. "SYSTEM OF MACHINERY FOR COMPLEX MECHANIZATION FOR RECLAMATION WORK." Agricultural machinery and technologies, no. 2 (April 20, 2017): 43–48. http://dx.doi.org/10.22314/2073-7599-2017-2-43-48.

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KAMADA, Katsuhiko. "Structural Studies of GINS Complex in Eukaryote Replication Machinery." Nihon Kessho Gakkaishi 49, no. 5 (2007): 286–91. http://dx.doi.org/10.5940/jcrsj.49.286.

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Esparcieux, Ph. "An automated vibration identification system for complex machinery installations." Journal of the Acoustical Society of America 84, S1 (November 1988): S170. http://dx.doi.org/10.1121/1.2025961.

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Zhvania, Mzia G., and Nino Pochkidze. "Neuronal Porosome Complex: Secretory Machinery at the Nerve Terminal." Discoveries 5, no. 3 (July 28, 2017): e77. http://dx.doi.org/10.15190/d.2017.7.

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Lee, Kyoung Hoon, Patricia Davies, and Aimee M. Surprenant. "Tonal strength of harmonic complex tones in machinery noise." Journal of the Acoustical Society of America 118, no. 3 (September 2005): 1921. http://dx.doi.org/10.1121/1.4809075.

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Ryu, Min-Jung, Beom-Jun Kim, Jeong-Won Lee, Min-Woo Lee, Hyun-Kyung Choi, and Seong-Tae Kim. "Direct interaction between cohesin complex and DNA replication machinery." Biochemical and Biophysical Research Communications 341, no. 3 (March 2006): 770–75. http://dx.doi.org/10.1016/j.bbrc.2006.01.029.

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Buxbaum, Hans-Jürgen. "Making complex machinery move: Automatic programming and motion planning." Control Engineering Practice 3, no. 1 (January 1995): 143. http://dx.doi.org/10.1016/0967-0661(95)90316-x.

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Dubrovina, Natalya A. "Innovative technologies in machinery." Vestnik of Samara University. Economics and Management 12, no. 1 (April 20, 2021): 108–15. http://dx.doi.org/10.18287/2542-0461-2021-12-1-108-115.

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The pace of innovative development of the machine-building complex and its structural changes are largely determined by the processes of automation, digitalization, improvement of machinery and equipment. Thepresented article discusses innovative technologies in mechanical engineering. The main trends in the innovative development of industrial production are: development of high-tech foreign economic activity, formation of an innovative space, digitalization of economy, creation of a unified database of innovative developments, formation of a new scientific base working on solving urgent problems, creation of markets for innovative products. It is determined that at all stages of the product life cycle, digital technologies are included, such as virtual reality, additive manufacturing, the industrial Internet of things, and a virtual trading platform. The definition of innovative and technological development of the machine-building complex is given. Despite the fact that innovative technologies ensure efficiency, agility and cost-effectiveness of production, in Russia the digital transformation process is in its infancy and is a promising necessity for the development of all industrial production. The transition to digital production technologies is associated with the solution of a number of problems. Such as modernization of the material and technical base, training and advanced training of personnel, preparation of the legislative framework, standardization, certification of innovative digital production technologies, search for investment resources.

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Borden, Katherine L. B. "The Nuclear Pore Complex and mRNA Export in Cancer." Cancers 13, no. 1 (December 25, 2020): 42. http://dx.doi.org/10.3390/cancers13010042.

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Export of mRNAs from the nucleus to the cytoplasm is a key regulatory step in the expression of proteins. mRNAs are transported through the nuclear pore complex (NPC). Export of mRNAs responds to a variety of cellular stimuli and stresses. Revelations of the specific effects elicited by NPC components and associated co-factors provides a molecular basis for the export of selected RNAs, independent of bulk mRNA export. Aberrant RNA export has been observed in primary human cancer specimens. These cargo RNAs encode factors involved in nearly all facets of malignancy. Indeed, the NPC components involved in RNA export as well as the RNA export machinery can be found to be dysregulated, mutated, or impacted by chromosomal translocations in cancer. The basic mechanisms associated with RNA export with relation to export machinery and relevant NPC components are described. Therapeutic strategies targeting this machinery in clinical trials is also discussed. These findings firmly position RNA export as a targetable feature of cancer along with transcription and translation.

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Wei, Ren Sheng. "Intelligent Construction Machinery Fault Diagnosis Based on Multiple Intelligent Machines." Applied Mechanics and Materials 340 (July 2013): 484–88. http://dx.doi.org/10.4028/www.scientific.net/amm.340.484.

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With the rapid development of science technology, to realize digital monitoring in the complex working conditions, the use of artificial intelligence machine to quickly achieve control operations. However, in the artificial intelligence system process, there may be a programmable datas inaccuracy and non real time, thereby to bring the certain error of control system that affects people's judgment. In programming data acquisition processing system, to introduce CBR diagnosis technique application, existing programming data acquisition processing system carries on fault coupling analysis. Through the data programming module transform for real-time diagnosis module, using artificial intelligence carries on automatic diagnosis for programming data, thus effectively solving the deviation in programming data acquisition process.

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Loparev, V. A., S. S. Kiselev, and M. M. Shilin. "Features of machinery equipment for complex winding of optical fiber." Izvestiâ vysših učebnyh zavedenij. Priborostroenie 62, no. 1 (January 24, 2019): 78–85. http://dx.doi.org/10.17586/0021-3454-2019-62-1-78-85.

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O’Neil, Patrick K., Sarah E. Rollauer, Nicholas Noinaj, and Susan K. Buchanan. "Fitting the Pieces of the β-Barrel Assembly Machinery Complex." Biochemistry 54, no. 41 (October 6, 2015): 6303–11. http://dx.doi.org/10.1021/acs.biochem.5b00852.

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Shi, Zhi, Hae R. Park, Yuhong Du, Zijian Li, Kejun Cheng, Shi-Yong Sun, Zenggang Li, Haian Fu, and Fadlo R. Khuri. "Cables1 Complex Couples Survival Signaling to the Cell Death Machinery." Cancer Research 75, no. 1 (October 31, 2014): 147–58. http://dx.doi.org/10.1158/0008-5472.can-14-0036.

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Günzl, Arthur. "The Pre-mRNA Splicing Machinery of Trypanosomes: Complex or Simplified?" Eukaryotic Cell 9, no. 8 (June 25, 2010): 1159–70. http://dx.doi.org/10.1128/ec.00113-10.

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ABSTRACT Trypanosomatids are early-diverged, protistan parasites of which Trypanosoma brucei, Trypanosoma cruzi, and several species of Leishmania cause severe, often lethal diseases in humans. To better combat these parasites, their molecular biology has been a research focus for more than 3 decades, and the discovery of spliced leader (SL) trans splicing in T. brucei established a key difference between parasites and hosts. In SL trans splicing, the capped 5′-terminal region of the small nuclear SL RNA is fused onto the 5′ end of each mRNA. This process, in conjunction with polyadenylation, generates individual mRNAs from polycistronic precursors and creates functional mRNA by providing the cap structure. The reaction is a two-step transesterification process analogous to intron removal by cis splicing which, in trypanosomatids, is confined to very few pre-mRNAs. Both types of pre-mRNA splicing are carried out by the spliceosome, consisting of five U-rich small nuclear RNAs (U snRNAs) and, in humans, up to ∼170 different proteins. While trypanosomatids possess a full set of spliceosomal U snRNAs, only a few splicing factors were identified by standard genome annotation because trypanosomatid amino acid sequences are among the most divergent in the eukaryotic kingdom. This review focuses on recent progress made in the characterization of the splicing factor repertoire in T. brucei, achieved by tandem affinity purification of splicing complexes, by systematic analysis of proteins containing RNA recognition motifs, and by mining the genome database. In addition, recent findings about functional differences between trypanosome and human pre-mRNA splicing factors are discussed.

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Kerr, Shana C., Nowel Azzouz, Stephen M. Fuchs, Martine A. Collart, Brian D. Strahl, Anita H. Corbett, and R. Nicholas Laribee. "The Ccr4-Not Complex Interacts with the mRNA Export Machinery." PLoS ONE 6, no. 3 (March 28, 2011): e18302. http://dx.doi.org/10.1371/journal.pone.0018302.

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Kim, Kelly H., Suraaj Aulakh, and Mark Paetzel. "Crystal Structure of β-Barrel Assembly Machinery BamCD Protein Complex." Journal of Biological Chemistry 286, no. 45 (September 20, 2011): 39116–21. http://dx.doi.org/10.1074/jbc.m111.298166.

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Arlaud, Gerard J., Christine Gaboriaud, Nicole M. Thielens, Veronique Rossi, Beate Bersch, Jean-Francois Hernandez, and Juan C. Fontecilla-Camps. "Structural biology of C1: dissection of a complex molecular machinery." Immunological Reviews 180, no. 1 (April 2001): 136–45. http://dx.doi.org/10.1034/j.1600-065x.2001.1800112.x.

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Hu, Qiong, Chun-hua Yang, Shao-jun Liu, and Hao Zheng. "Torsional vibration active control of hybrid construction machinery complex shafting." Journal of Central South University 21, no. 9 (September 2014): 3498–503. http://dx.doi.org/10.1007/s11771-014-2328-2.

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MISHINA, ZOYA. "ORGANIZATIONAL AND TECHNOLOGICAL PRINCIPLES FOR CREATION INNOVATION CENTERS." Tekhnicheskiy servis mashin 4, no. 141 (December 2020): 40–46. http://dx.doi.org/10.22314/2618-8287-2020-58-1-40-46.

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Timely conducting of all types of maintenance and routine repairs is possible only in the conditions of an innovative service center, equipped with the necessary equipment and having a complex of facilities to ensure favorable conditions for technical service. (Research purpose) The research purpose is in identifying opportunities for updating the technical service system in the agro-industrial complex by creating innovative service centers to ensure highly efficient operation of agricultural machinery and equipment. (Materials and methods) The system of maintenance in agriculture is characterized by a significant decrease in efficiency due to physical and moral wear of equipment of repair and technical enterprises, low level and insufficient qualification of personnel and managers of enterprises of the agro-industrial complex. The availability of existing enterprises of the agro-industrial complex with production areas is no more than 50 percent, technological equipment is no more than 47 percent, and technological equipment and equipment for jobs are 15 and 40 percent. (Results and discussion) The modernization of the infrastructure of technical service of agricultural machinery is aimed at updating the technological base of machine repair. Repair and technical enterprises do not have the necessary equipment to perform a number of maintenance and routine repairs. The process of developing technical service infrastructure is significantly behind the level of structural and technological complexity of agricultural machinery. Due to technological requirements, complex components and assemblies, such as engines, hydraulic equipment, fuel pumps of domestic and imported agricultural machinery should not be repaired in the conditions of farms. (Conclusions) The high technological level of innovative technical service centers serves as a condition for efficient operation of production, ensuring its stability and reliability of operation, flexibility and adaptability, high intensity and waste-free operation.

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Mishina, Z. N. "Support for the life cycle of agricultural machinery." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 6 (June 1, 2020): 76–82. http://dx.doi.org/10.33920/sel-10-2006-11.

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Conducted research on life cycle analysis of complex agricultural technologies have revealed certain patterns: the share of expenditure on repair and maintenance of these machines reaches 70% of the total cost of all phases of the product life cycle, so identification of the main ways to support the life cycle of agricultural machinery is an important task of maintaining the health and effi ciency of mashinno-tractor Park of the agricultural sector.

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