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Journal articles on the topic 'Turbo C++'

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Published: 4 June 2021
Last updated: 30 July 2024

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1

Challab, DJ. "Turbo C++." Information and Software Technology 34, no. 9 (1992): 617–18. http://dx.doi.org/10.1016/0950-5849(92)90140-k.

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2

Hughes, Larry. "Teaching operating systems using Turbo C." ACM SIGCSE Bulletin 24, no. 1 (1992): 181–86. http://dx.doi.org/10.1145/135250.134547.

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3

Park, K.-J., and D. Jung. "External condensation heat transfer coefficients of R22 alternative refrigerants on enhanced tubes at three saturation temperatures." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 222, no. 6 (2008): 987–94. http://dx.doi.org/10.1243/09544062jmes933.

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In this study, external condensation heat transfer coefficients (HTCs) of R22, R410A, R407C, and R134a are measured on a 1024 fins per meter (26 fins per inch) low fin tube and Turbo-C tube at saturation temperatures of 30, 39, and 50 °C with wall subcooling of 3–8 °C. Test results show that condensation HTCs of all refrigerants decrease as the saturation temperature increases from 30 to 50 °C. This trend is due to the degradation of thermophysical properties of the liquid phase with an increase in saturation temperature. For the low fin tube data, Beatty and Katz's prediction equation showed a reasonably good agreement for all fluids with less than 20 per cent deviation. The performance of Turbo-C tube is better than that of the low fin tube for R22, R410A, and R134a due to the efficient removal of the condensate. For Turbo-C tube, HTCs of R407C were much lower than those of the other three fluids due to a unique condensation phenomenon associated with non-azeotropic mixtures at vapour—liquid interface. The average heat transfer enhancement ratios for the low fin tube and Turbo-C tube against the plain tube are 4.0–5.5 and 3.0–8.1, respectively, for all refrigerants tested.
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4

Poljak, Igor, Ivica Glavan, Josip Orović, and Vedran Mrzljak. "Three Approaches to Low-Duty Turbo Compressor Efficiency Exploitation Evaluation." Applied Sciences 10, no. 10 (2020): 3373. http://dx.doi.org/10.3390/app10103373.

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This paper presents three approaches for isentropic, energy, and exergy evaluations of a low-duty liquid natural gas (LNG) vapor turbo compressor during exploitation on a conventional LNG carrier. The evaluation was conducted on the measured performance parameters under 22 various turbo compressor operating regimes. The turbo compressor performance was evaluated in the temperature span from −69 to −105 °C and during changes in the rpm of the main propulsion turbine and, consequently, the main boiler load. The results show that the highest measured turbo compressor isentropic efficiency is in agreement with the manufacturer specifications, equaling 75.23% at a main propulsion turbine rpm of 53.5. At the highest measured loads and rpm, the turbo compressor energy and exergy efficiencies reach the highest values of 57.81% and 28.51%, respectively. In each observed operating regime, the influence of the ambient temperature change on the turbo compressor exergy efficiency was investigated. At the lowest and the highest measured loads, turbo compressor energy and exergy flow streams are presented in a Sankey diagram. Techniques for cargo temperature maintenance during the ship voyage are presented, as the results show that low suction gas temperatures influence turbo compressor efficiency.
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5

Lim, G. H. "Vibratory feeder motion study using Turbo C++ language." Advances in Engineering Software 18, no. 1 (1993): 53–59. http://dx.doi.org/10.1016/0965-9978(93)90007-g.

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6

Velásquez Rodríguez, Claudia María, and Juliana María Orozco Cano. "Dislipidemia en niños con desnutrición aguda. Turbo, Colombia." Perspectivas en Nutrición Humana 14, no. 2 (2013): 157–70. http://dx.doi.org/10.17533/udea.penh.16486.

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Objetivo: comparar el perfil lipídico de niños menores de 5 años con desnutrición aguda con ungrupo control. Metodología: estudio descriptivo, de corte transversal, en 43 niños, 26 con desnutriciónaguda y 17 con adecuado peso para la talla (P/T). Entre los grupos de estudio secompararon las concentraciones séricas de CT, c-LDL, c-HDL y TG. Resultados: el grupo condesnutrición presentó una frecuencia significativamente mayor de c-HDL bajas comparados concontroles (19 vs 7% respectivamente, p=0,036) y un riesgo 1,8 veces mayor de c-HDL bajas(OR=1,8; IC 0,960-3,280). Los TG fueron mayores en los desnutridos, pero sin diferencia significativacon los controles. Las concentraciones de CT, c-LDL y c-HDL disminuyeron significativamentea medida que aumentó el grado de desnutrición, mientras que los TG aumentaronpero no significativamente; en los niños con desnutrición grave el índice arterial TG/c-HDL fuesignificativamente mayor que en los moderados y en los controles. Los niños con kwashiorkor presentaron las concentraciones más bajas de CT, c-LDL y c-HDL, las más altas de TG y elmayor índice arterial. Conclusiones: los niños con desnutrición aguda grave, especialmente tipo kwashiorkor, presentan concentraciones más bajas de c-HDL y más altas de TG, con un índicearterial alto que los expone a desarrollar ateroesclerosis.
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7

Ferreira Lima, João Vicente, Issam Raïs, Laurent Lefèvre, and Thierry Gautier. "Performance and energy analysis of OpenMP runtime systems with dense linear algebra algorithms." International Journal of High Performance Computing Applications 33, no. 3 (2018): 431–43. http://dx.doi.org/10.1177/1094342018792079.

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In this article, we analyze performance and energy consumption of five OpenMP runtime systems over a non-uniform memory access (NUMA) platform. We also selected three CPU-level optimizations or techniques to evaluate their impact on the runtime systems: processors features Turbo Boost and C-States, and CPU Dynamic Voltage and Frequency Scaling through Linux CPUFreq governors. We present an experimental study to characterize OpenMP runtime systems on the three main kernels in dense linear algebra algorithms (Cholesky, LU, and QR) in terms of performance and energy consumption. Our experimental results suggest that OpenMP runtime systems can be considered as a new energy leverage, and Turbo Boost, as well as C-States, impacted significantly performance and energy. CPUFreq governors had more impact with Turbo Boost disabled, since both optimizations reduced performance due to CPU thermal limits. An LU factorization with concurrent-write extension from libKOMP achieved up to 63% of performance gain and 29% of energy decrease over original PLASMA algorithm using GNU C compiler (GCC) libGOMP runtime.
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8

NAKAGAWA, Shin, Tomoya NAKAJIMA, Tomoaki ITANO, and Masako SUGIHARA-SEKI. "Measurements of Aerodynamic Characteristics of the Turbo-Jav." Proceedings of the Symposium on sports and human dynamics 2016 (2016): C—12. http://dx.doi.org/10.1299/jsmeshd.2016.c-12.

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9

Nugroho, S. D., C. Z. Pratiwi, and S. Holil. "The design of turbo jet surface aerator to enhance dissolved oxygen level in shrimp pond." IOP Conference Series: Earth and Environmental Science 1036, no. 1 (2022): 012102. http://dx.doi.org/10.1088/1755-1315/1036/1/012102.

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Abstract The dissolved oxygen (DO) is crucial water quality parameters for shrimp farming. The farmers need aerator to break water into fine drops or creating bubbles that can enhance dissolved oxygen level in the pond. Turbo jet surface aerator is the one type of aerator. This aerator works by rotating propeller which is connected by a hollow shaft to the motor. The angular adjustment that is used from the engine holder is 20°. Therefore, the propeller can rotate in half submerged position which is 4.5 cm immersion depth. This turbo jet surface aerator is designed using 0.5 HP electric motor, 7 blades, and 2 floats. The measurement result shows the turbo jet surface aerator can be used to enhance DO level up to 2.8 mg/L with the average of DO level of 6.8 mg/L. Turbo jet surface aerator can be operated properly for 168 hours nonstop with the electric motor temperature of 69°C.
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10

Setiyo, Muji, Sudjito Soeparman, Slamet Wahyudi, and Nurkholis Hamidi. "The Alternative Way to Drive the Automobile Air-Conditioning, Improve Performance, and Mitigate the High Temperature: A Literature Overview." Periodica Polytechnica Transportation Engineering 46, no. 1 (2017): 36. http://dx.doi.org/10.3311/pptr.8892.

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Over fuel consumption and increasing in CO2 emissions are problems as compensation from the imposition of automobile A/C systems. Another problem is the extreme temperature when the car is parked under sunlight so that the thermal load becomes very large when A/C is turned on. Therefore, this article presents various methods to overcome the problem. Methods to reduce fuel consumption and to reduce CO2 emissions are done by application of VCC and the absorption system. Potential of turbo A/C system and combining vapor compression and LPG fuel system has also been studied. Potential of turbo A/C system and combining vapor compression and LPG fuel system has also been studied. Related to the mitigating of high temperature inside the car cabin when parked under sunlight, the addition of a ventilator and portable car cooling system is a promising option.
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11

UYULGAN, Bahadır. "Pik Turbo Orta Göbeğinin Alüminyum Alaşımından Üretilmesi." Deu Muhendislik Fakultesi Fen ve Muhendislik 24, no. 72 (2022): 845–53. http://dx.doi.org/10.21205/deufmd.2022247214.

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The goal of this research is to make an aluminum alloy center housing for a turbocharger, which is currently built of cast iron, in order to minimize weight in the car sector. The use of aluminum alloy instead of cast iron to manufacture a turbocharger's central housing is expected to result in a 60 percent weight reduction.
 It was determined in the investigation that A242 aluminum alloy might be utilized in place of cast iron. The turbo mid-hub, which is comprised of A242 aluminum alloy, was then heat treated and hardness tested. The finite element approach was used to examine the temperature distribution of the part.
 As a result of the aging experiment, the solution temperature and duration were kept constant, and the most acceptable aging temperature and time for the turbocharger cental hausing were identified as 190°C, 234 minutes, as a consequence of the aging heat treatments done at different temperatures. The hottest spots of the turbocharger central hausing built from A242 alloy and cast iron, according to the temperature distribution study, are 153°C in the aluminum alloy section and 233°C in the cast iron component.
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12

Kim, T. K., B. I. Choi, J. K. Han, H. J. Jang, and M. C. Han. "Optimal MR Protocol for Hepatic Hemangiomas." Acta Radiologica 38, no. 4 (1997): 565–71. http://dx.doi.org/10.1080/02841859709174388.

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Purpose: To compare conventional spin-echo (SE) sequences with T2-weighted turbo SE and serial gadolinium-enhanced T1-weighted FLASH sequences in the detection and characterization of hepatic hemangiomas, and to describe the enhancement characteristics of the lesions on dynamic MR imaging. Material and Methods: Forty-two patients with 66 hemangiomas were studied at 1.0 T or 1.5 T by using conventional SE sequences (T1-weighted, T2-weighted, and heavily T2-weighted), T2-weighted turbo SE sequences, and breath-hold T1-weighted FLASH sequences acquired before, immediately after, and 1, 2, 3, 5, and 10 min after injection of a bolus of gadopentetate dimeglumine. Images were quantitatively analyzed for lesion-to-liver contrast-to-noise (C/N) ratios, and qualitatively analyzed for lesion conspicuity. The enhancement pattern and the rapidity of enhancement were analyzed in small (<15 mm), medium (15-39 mm), and large (>39 mm) hemangiomas. Results: In T2-weighted images, T2-weighted turbo SE and heavily T2-weighted SE images had higher C/N ratios than T2-weighted SE images (p=0.003). Lesion conspicuity was not significantly different in these 3 sequences (p=0.307). In T1-weighted images, T1-weighted FLASH images had higher C/N (p<0.001) and also better lesion conspicuity (p<0.001) than T1-weighted SE images. Immediate uniform enhancement was seen in 43% of small hemangiomas (9 of 21 lesions), and persistent central hypo-intensity was seen in 73% of large hemangiomas (11 of 15 lesions). Rapid enhancement was seen in 62% of small hemangiomas (13 of 21 lesions) and in 31% of medium or large hemangiomas (14 of 45 lesions). Conclusion: Further clinical study is needed for evaluating the differential diagnostic advantages of turbo SE T2-weighted imaging compared to the calculation of T2-values by means of a SE T2-weighted sequence. However, the results of the present study suggest that T2-weighted turbo SE imaging and precontrast and serial gadolinium-enhanced FLASH imaging have the potential to replace conventional SE imaging in the evaluation of hepatic hemangiomas.
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13

Singh, Dr Balkar. "TURBO CODE RE-ANALYSIS USING DIFFERENT ALGORITHMS." International Journal of Engineering Science and Humanities 14, Special Issue 1 (2024): 27–31. http://dx.doi.org/10.62904/k2aydz44.

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Turbo codes are a novel type of forward error correcting codes that have proved to give a perfor- mance close to the channel capacity as proposed by C. Shannon. The parallel concatenation of two identical recursive convolutional encoders that are spaced apart by an interleaver results in a turbo code encoder. The two cascaded decoding blocks used by the turbo code decoder pass along a priori knowledge generated by each block in turn. The decoding approach has the advantage of working iteratively, allowing for an increase in total performance. This study does a performance analysis of turbo codes. The performance study includes two decoding methods: the soft output Viterbi algo- rithm (SOVA), which uses the log-likelihood ratio to produce soft outputs, and the log maximum a posteriori probability (Log-MAP) algorithm. Both punctured and unpunctured codes are studied to determine the impact of utilizing various decoding algorithms. The performance of the two various decoding techniques is then contrasted in terms of bit error rate. MATLAB tools are utilized to per- form simulations.
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14

Liu, Shuhong, Michihiro Nishi, and Kouichi Yoshida. "Impeller Geometry Suitable for Mini Turbo-Pump." Journal of Fluids Engineering 123, no. 3 (2001): 500–506. http://dx.doi.org/10.1115/1.1385385.

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The objective of the present study is to investigate the suitable impeller geometry for a mini turbo-pump, which is defined as the size having impeller diameter between around 5 mm and 50 mm. This is treated because those pumps having the above size are regarded as low efficiency machines if efficiency is less than 40 percent or 50 percent. Considering that not only low Reynolds number and tip clearance but the design method are the major causes for low performance, we carried out the performance test experimentally using two semi-open centrifugal impellers: one is named as Impeller B of 36 mm diameter and the other is Impeller C of 34 mm diameter. And the former is designed by a conventional method and the latter is based on the proposed method. In the performance tests, rotational speed was varied between 3000 rpm and 10,000 rpm and the axial clearance at the blade tip of impeller exit was between 0.2 mm and 0.8 mm. It is clearly seen from the results that Impeller C gives the better hydraulic performance. It is also clarified that the effect of tip clearance on Impeller C performance is much smaller than that of the Impeller B. Further, we conducted numerical calculation of impeller performance, where the commercial CFD code named TASCflow was used with k-ω turbulence model. From the results, the turbulent flow analysis is reasonably usable to study the flow in the above mini impellers.
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15

Yacamini, R. "How HVDC schemes can excite torsional oscillations in turbo-alternator shafts." IEE Proceedings C Generation, Transmission and Distribution 133, no. 6 (1986): 301. http://dx.doi.org/10.1049/ip-c.1986.0044.

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16

Arifin, Maulana. "Rotordynamics analysis of solar hybrid microturbine for concentrated solar power." Journal of Mechatronics, Electrical Power, and Vehicular Technology 11, no. 1 (2020): 38. http://dx.doi.org/10.14203/j.mev.2020.v11.38-44.

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Microturbine based on a parabolic dish solar concentrator runs at high speed and has large amplitudes of subsynchronous turbo-shaft motion due to the direct normal irradiance (DNI) fluctuation in daily operation. A detailed rotordynamics model coupled to a full fluid film radial or journal bearing model needs to be addressed for increasing performance and to ensure safe operating conditions. The present paper delivers predictions of rotor tip displacement in the microturbine rotor assembly supported by a journal bearing under non-linear vibrations. The rotor assembly operates at 72 krpm on the design speed and delivers a 40 kW power output with the turbine inlet temperature is about 950 °C. The turbo-shaft oil temperature range is between 50 °C to 90 °C. The vibrations on the tip radial compressor and turbine were presented and evaluated in the commercial software GT-Suite environment. The microturbine rotors assembly model shows good results in predicting maximum tip displacement at the rotors with respect to the frequency and time domain.
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17

Petkov, V., and N. Bakaltchev. "FIT, a computer program for decomposition of powder diffraction patterns and profile analysis of pair correlation functions." Journal of Applied Crystallography 23, no. 2 (1990): 138–40. http://dx.doi.org/10.1107/s002188988901410x.

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FIT is an interactive computer program for fitting analytical models to powder diffraction patterns and to pair correlation functions. FIT has been written in Turbo C and runs on IBM XT/AT or compatible personal computers.
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18

Webb, R. L., and C. G. Murawski. "Row Effect for R-11 Condensation on Enhanced Tubes." Journal of Heat Transfer 112, no. 3 (1990): 768–76. http://dx.doi.org/10.1115/1.2910452.

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Experimental results of a condensation row effect study on enhanced tubes are presented. A test cell was constructed to condense Refrigerant-11 on the shell side of a vertical bank of five horizontal tubes. Four distinctly different commercially available tubes were tested. The tubes are a 1024-fpm integral fin, the Wolverine Turbo-C, Wieland GEWA-SC, and the Tred-D. A modified Turbo-C tube was also tested. Experimental and visual observations are used to understand the row effect due to condensate loading. By plotting the data in the form of the local condensation coefficient versus condensate Reynolds number, the results may be interpreted for any number of tube rows, up to the maximum Reynolds numbers tested. Bundle average condensation coefficients may be established by integrating the h versus Re values over the number of tube rows.
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19

Lipski, Mariusz, Krzysztof Woźniak, Liliana Szyszka-Sommerfeld, Mariusz Borawski, Agnieszka Droździk, and Alicja Nowicka. "In Vitro Infrared Thermographic Assessment of Temperature Change in the Pulp Chamber during Provisionalization: Effect of Remaining Dentin Thickness." Journal of Healthcare Engineering 2020 (November 10, 2020): 1–5. http://dx.doi.org/10.1155/2020/8838329.

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Interim crowns and partial fixed dental prosthesis materials generate exothermic heat during polymerization. The amount of heat transmitted to the pulp chamber can be a function of several factors, including the thickness and quality of the remaining dentin after crown preparation. The aim of this in vitro study was to measure with infrared thermography the temperature changes on the adjacent surface of the chamber roof of premolar teeth extracted from young and old patients (having different thicknesses of remaining dentin after crown preparation) during fabrication of provisional resinous restorations. Twenty extracted human first and second maxillary premolar teeth (10 from young patients, with a relatively large pulp chamber, and 10 from older patients, with a relatively small pulp chamber) were used. The roots were sectioned to expose the inner side of the chamber roof, and the crowns were provisionalized after preparation for a metal-ceramic crown. Two provisional materials, Turbo Temp 2 and Luxatemp Fluorescence, were used. Temperature changes on the inner side of the chamber roof were measured at 2-second intervals using an infrared thermal imaging camera. After completion of the temperature recordings, the teeth were sectioned and the remaining dentin thickness was determined. The older group (mean thickness: 2.82 mm) and younger group (mean thickness: 1.9 mm) differed significantly in dentin thickness ( P < 0.014 ). The mean greatest temperature increases recorded on the chamber roof of teeth with less remaining dentin were 4.07°C for Turbo Temp 2 and 3.94°C for Luxatemp Fluorescence, while increases in the premolars with greater dentin thickness were 1.69°C for Turbo Temp 2 and 1.64°C for Luxatemp Fluorescence. Significant interactions were found between tooth groups ( P < 0.000001 for Turbo Temp 2 and for Luxatemp Fluorescence). No significant differences were found between assessed materials regardless of the thickness of the remaining dentin ( P > 0.38 for the older group and P > 0.29 for the younger group). Dentin had a significant effect in limiting the temperature increase generated during polymerization of provisional materials, indicating good thermal insulating properties of this tissue. A remaining dentin thickness of 1.9 mm or more is sufficient to protect the pulp from any temperature increase during provisionalization using tested materials.
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20

Rubini, Dylan, Nikolas Karefyllidis, Budimir Rosic, Liping Xu, and Elina Nauha. "Decarbonisation of high-temperature endothermic chemical reaction processes using a novel turbomachine: robustness of the concept to feed variability." Journal of the Global Power and Propulsion Society 8 (April 30, 2024): 111–26. http://dx.doi.org/10.33737/jgpps/185623.

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This paper presents a revolutionary turbomachinery concept, referred to as the turbo-reactor, which has the potential to replace gas-fired radiant furnaces and decarbonise a wide range of hard-to-abate, high-temperature endothermic chemical reaction processes. Although previous studies by the authors have confirmed the feasibility of using a turbo-reactor for steam cracking reactions, the numerical investigation presented in this work broadens the scope of potential applications for the machine to a variety of energy-intensive chemical processes, including those used for hydrogen production. This step change in technology could be the catalyst needed to enable rapid scale-up of low-carbon hydrogen technology. The innovative design of the turbo-reactor is fundamentally based on converting all of the imparted mechanical energy into internal energy, rather than pressure. This enables temperatures of up to 1,700°C to be achieved within an axial length on the order of one metre, resulting in an increase in the power density of 50 to 1,000 times compared to a surface heat exchanger. This paper presents the first comprehensive analysis of the turbo-reactor’s robustness and controllability across a broad spectrum of feeds, chemical reaction stages, Mach number regimes, and operating points, conclusively demonstrating the feasibility of a universal stage design strategy for repeatedly imparting and dissipating energy for various endothermic reaction processes.
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21

Sagita, Vina, and Maria Irmina Prasetiyowati. "Studi Perbandingan Implementasi Algoritma Boyer-Moore, Turbo Boyer-Moore, dan Tuned Boyer-Moore dalam Pencarian String." Jurnal ULTIMATICS 5, no. 1 (2013): 31–37. http://dx.doi.org/10.31937/ti.v5i1.311.

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String searching merupakan suatu proses yang umum dilakukan dalam proses-proses yang dilakukan komputer karena teks merupakan bentuk utama penyimpanan data. Terdapat beberapa macam cara yang dapat dilakukan untuk mencari sebuah string pada kumpulan string lain yang lebih besar. Beberapa diantaranya adalah algoritma BoyerMoore, Turbo Boyer-Moore dan Tuned Boyer-Moore. Guna mengetahui bagaimana performa algoritma-algoritma tersebut, terutama di bidang waktu yang diperlukan, maka dibuatlah aplikasi yang dapat digunakan untuk mengetahui waktu yang diperlukan untuk mencari suatu pattern dalam text. Aplikasi dibangun menggunakan metode prototyping dan menggunakan Microsoft Visual Studio dengan bahasa C# untuk pembangunannya. Aplikasi ini mendukung pencarian dengan penggunaan tiga algoritma (Boyer-Moore, Turbo Boyer-Moore, Tuned Boyer-Moore), pengubah kata (replace), highlight kata yang dicari, dan pemberian informasi waktu yang dibutuhkan masing-masing algoritma untuk pencarian serta algoritma mana yang membutuhkan waktu paling sedikit untuk pencarian. Dari penelitian yang dilakukan, dapat disimpulkan bahwa algoritma BoyerMoore adalah algoritma yang paling cepat dalam pencarian string.
 Kata kunci—Boyer-Moore, desktop application, kecepatan algoritma, string searching, Tuned Boyer-Moore, Turbo Boyer-Moore
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Bae, Jaehyeon, Seoryeong Kwon, and Seunghwan Myeong. "Enhancing Software Code Vulnerability Detection Using GPT-4o and Claude-3.5 Sonnet: A Study on Prompt Engineering Techniques." Electronics 13, no. 13 (2024): 2657. http://dx.doi.org/10.3390/electronics13132657.

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This study investigates the efficacy of advanced large language models, specifically GPT-4o, Claude-3.5 Sonnet, and GPT-3.5 Turbo, in detecting software vulnerabilities. Our experiment utilized vulnerable and secure code samples from the NIST Software Assurance Reference Dataset (SARD), focusing on C++, Java, and Python. We employed three distinct prompting techniques as follows: Concise, Tip Setting, and Step-by-Step. The results demonstrate that GPT-4o and Claude-3.5 Sonnet significantly outperform GPT-3.5 Turbo in vulnerability detection. GPT-4o showed the highest improvement with the Step-by-Step prompt, achieving an F1 score of 0.9072. Claude-3.5 Sonnet exhibited consistent high performance across all prompt types, with its Step-by-Step prompt yielding the best overall results (F1 score: 0.8933, AUC: 0.74). In contrast, GPT-3.5 Turbo showed minimal performance changes across prompts, with the Tip Setting prompt performing best (AUC: 0.65, F1 score: 0.6772), yet significantly lower than the other models. Our findings highlight the potential of advanced models in enhancing software security and underscore the importance of prompt engineering in optimizing their performance.
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23

Cho, T. Y., Y. K. Joo, J. H. Yoon, H. G. Chun, and S. H. Zhang. "HVOF Coating of µ-WC-Metal Powder and Laser Heat-Treatment of the Coating for the Improvement of Turbo Shaft Material." Advanced Materials Research 586 (November 2012): 74–79. http://dx.doi.org/10.4028/www.scientific.net/amr.586.74.

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A hybrid surface treatment was performed to improve the surface properties and the durability improvement of turbo shaft material Inconel718. A micron sized (µ) WC-metal powder (86% WC 10% Co 4% Cr) was coated onto a substrate surface using HVOF thermal spraying, and the coating was heat treated by a CO2 laser. With the HVOF coating of the powder onto the substrate, the surface hardness of substrate increased approximately 300% from 399 Hv to 1260±30 Hv, and further increase of approximately 40% from1260±30 Hv to 1820±100 Hv by laser heating the coating for 0.6 s. Porosity of coating decreased more than five times from 2.2±0.3% to 0.4±0.1% by laser heating. According to the reciprocating sliding test, friction and wear behavior of coating improved by coating for both sliding surface temperature of 25°C and 450°C. Therefore, the HVOF coating and laser heat treatment of coating are recommended for the durability improvement of turbo shaft materials.
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24

Souza, Krisnanda Kelly Castro de, Juliana Pace Salimena, João Barcellos Xavier, et al. "Nutritional and bioactive compounds of Amaranthus spp. in Brazil." Research, Society and Development 11, no. 13 (2022): e331111335618. http://dx.doi.org/10.33448/rsd-v11i13.35618.

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The objective of this research was to evaluate the physicochemical characteristics of Amaranthus spp. commonly happening in Brazil, besides defining the efficiency of different extraction processes of the phenolic compounds and of the antioxidant activity. Five species of the genus Amaranthus (A. spinosus, A. viridis, A. retroflexus, A. hybridus var. paniculatus e A. deflexus) were evaluated in regard to their physicochemical characteristics such as vitamin C, soluble solids, pH, moisture, lipids and protein levels as well as the coloration of the leaves. Also, the phenolic compounds and the antioxidants were defined through four extraction processes (reflux; hydroalcoholic turbo-extraction; aqueous; and methanolic). The species A. spinosus has stood out for its vitamin C levels, pH and moisture, indicating the potential of the species when compared to the others. The leaf extracts of the five Amaranthus species present differences in the total phenol levels, flavonoids and hydro flavonoids when subject to different extraction methods. The antioxidant activities were favored by the reflux and hydroalcoholic turbo-extraction, with A. viridis standing out in the reflux methods and A. spinosus in the hydroalcoholic.
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25

Kuznetsov, A. A., and N. G. Konopasov. "Generation of an electric charge of particles with small mobility." Physics of Aerodisperse Systems, no. 51 (March 19, 2014): 79–86. http://dx.doi.org/10.18524/0367-1631.2014.51.160085.

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Results of natural experiments with meteotron complex "Atmosphere" are discussed. For stimulation of clouds development in an ascending stream it is entered up to 100 kg/c the water fog formed water atomization charged particles by a turbo jet. The preliminary analysis of results of modeling experiences on электризации water-drop stream is carried out.
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Mendoza, Abraham, and Kilian Colas. "Iterative Synthesis of Pluripotent Thioethers through Controlled Redox Fluctuation of Sulfur." Synlett 29, no. 10 (2018): 1329–33. http://dx.doi.org/10.1055/s-0036-1591864.

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Target- and diversity-oriented syntheses are based on diverse building blocks, whose preparation requires discrete design and constructive alignment of different chemistries. To enable future automation of the synthesis of small molecules, we have devised a unified strategy that serves the divergent synthesis of unrelated scaffolds such as carbonyls, olefins, organometallics, halides, and boronic esters. It is based on iterations of a nonelectrophilic Pummerer-type C–C coupling enabled by turbo-organomagnesium amides that we have recently reported. The pluripotency of sulfur allows the central building blocks to be obtained by regulating C–C bond formation through control of its redox state.
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Lin, Han-Ching, Yen-Tso Chang, Go-Long Tsai, Dao-Ming Wang, Feng-Chi Hsieh, and Jinn-Feng Jiang. "Oil Coking Prevention Using Electric Water Pump for Turbo-Charge Spark-Ignition Engines." Mathematical Problems in Engineering 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/498624.

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Turbocharger has been widely implemented for internal combustion engine to increase an engine's power output and reduce fuel consumption. However, its operating temperature would rise to 340°C when engine stalls. This higher temperature may results in bearing wear, run-out, and stick, due to oil coking and insufficient lubrication. In order to overcome these problems, this paper employs Electric Water Pump (EWP) to supply cool liquid to turbocharger actively when the engine stalls. The system layout, operating timing, and duration of EWP are investigated for obtaining optimal performance. The primarily experimental results show that the proposed layout and control strategy have a lower temperature of 100°C than the conventional temperature 225°C.
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Xiao, Hailin, Ju Ni, Wu Xie, and Shan Ouyang. "A construction of quantum turbo product codes based on CSS-type quantum convolutional codes." International Journal of Quantum Information 15, no. 01 (2017): 1750003. http://dx.doi.org/10.1142/s0219749917500034.

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As in classical coding theory, turbo product codes (TPCs) through serially concatenated block codes can achieve approximatively Shannon capacity limit and have low decoding complexity. However, special requirements in the quantum setting severely limit the structures of turbo product codes (QTPCs). To design a good structure for QTPCs, we present a new construction of QTPCs with the interleaved serial concatenation of [Formula: see text]-type quantum convolutional codes (QCCs). First, [Formula: see text]-type QCCs are proposed by exploiting the theory of CSS-type quantum stabilizer codes and QCCs, and the description and the analysis of encoder circuit are greatly simplified in the form of Hadamard gates and C-NOT gates. Second, the interleaved coded matrix of QTPCs is derived by quantum permutation SWAP gate definition. Finally, we prove the corresponding relation on the minimum Hamming distance of QTPCs associated with classical TPCs, and describe the state diagram of encoder and decoder of QTPCs that have a highly regular structure and simple design idea.
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Emerson, Phillip L. "Console-protocol and Turbo-C options for the McClelland and Rumelhart PDP-handbook programs." Behavior Research Methods, Instruments, & Computers 23, no. 4 (1991): 548. http://dx.doi.org/10.3758/bf03209998.

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Park, Ki-Jung, Dong Gyu Kang, and Dongsoo Jung. "Condensation heat transfer coefficients of R1234yf on plain, low fin, and Turbo-C tubes." International Journal of Refrigeration 34, no. 1 (2011): 317–21. http://dx.doi.org/10.1016/j.ijrefrig.2010.06.010.

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Li, Hui, Ze Bang Ma, Fu Xing Bu, and Tian Xing Li. "Development of the Propertie and Process of Slot Wedge Cunibezrsi Copper Alloy Heat-Treatment Strengthening." Applied Mechanics and Materials 204-208 (October 2012): 4042–46. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.4042.

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Strengthening process tests were carried out on the CuNiBeZrSi alloy used for slot wedge in turbo-generator rotor. By EM, XRD anasys ，The results show that: in this experimental conditions, to obtain better overall performance, the heat treatment process of slot wedges copper alloy is: forging - water quenching solution-aging. CuNiBeZrSi alloy got a better overall performance after solid solution 950°C×1.5h+460°C×3h aging. And the values of hardness and electrical conductivity of the alloy are HB 259 and 56 %IACS. It can meet the requirement of slot wedge copper alloy working, with better economic benefits.
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Will, G., and Ch Höffner. "HFIT, A Program for Interactive Analysis of Powder Diffraction Data." Advances in X-ray Analysis 35, A (1991): 571–76. http://dx.doi.org/10.1154/s0376030800009265.

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AbstractHFIT is a program for the analysis of diffraction diagrams containing overlapping peak clusters. Profile functions have been implemented to analyze synchrotron diffraction data. It is written un Turbo C++ for PC operations. The analysis is done by operator interaction. The analysis is done on sections of the diffractogram containing a maximum of 2048 data points or 100 diffraction maxima. Special care is taken for smoothing the data and for the subtraction of background.
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GAMBE, H. "An Improved Sliding Window Algorithm for Max-Log-MAP Turbo Decoder and Its Programmable LSI Implementation." IEICE Transactions on Electronics E88-C, no. 3 (2005): 403–12. http://dx.doi.org/10.1093/ietele/e88-c.3.403.

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Roth, Yoann, Jean-Baptiste Doré, Laurent Ros, and Vincent Berg. "Coplanar Turbo-FSK: A Flexible and Power Efficient Modulation for the Internet-of-Things." Wireless Communications and Mobile Computing 2018 (August 28, 2018): 1–17. http://dx.doi.org/10.1155/2018/3072890.

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As the Internet-of-Things (IoT) has expanded, multiple solutions have attempted to address the issues of the Low Power Wide Area (LPWA) networks physical layer. In a previous work, we proposed the Turbo-FSK, a constant envelope modulation with orthogonal alphabet that allows the receiver to operate at very low levels of power (high sensitivity performance) and very low levels of energy per bit Eb. The scheme was demonstrated to approach Shannon’s limit as close as 0.29 dB. However, the scheme lacks flexibility in terms of spectral efficiency (always lower than 10−1 bits/s/Hz), especially compared to the recently standardized Narrow-Band IoT (NB-IoT) solution. In this work, we propose an evolution of the initial scheme, so-called Coplanar Turbo-FSK (C-TFSK). In order to increase the spectral efficiency of the system, two new features are introduced: a modulation combining linear and orthogonal properties where only subsets of the alphabet are orthogonal and a puncturing mechanism. Several aspects of the scheme are then studied under asymptotic hypothesis, such as the influence of the linear component of the alphabet and the effects of puncturing. The high flexibility in terms of spectral efficiency, the short distance to Shannon’s limit, and the constant envelope property make the C-TFSK a serious contender for the physical layer of the IoT.
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Aranha, Valéria Meireles dos Santos, Laís Regiane Da Silva Concílio, Ana Christina Claro Neves, Daphne Câmara Barcellos, and Sigmar De Mello Rode. "Comparação da variação da temperatura produzida por dois tipos de instrumentos cortantes rotatórios diamantados no preparo cavitário." Brazilian Dental Science 14, no. 3/4 (2012): 38. http://dx.doi.org/10.14295/bds.2011.v14i3/4.753.

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<p class="MsoNormal" style="margin-bottom: 6.0pt; text-align: justify; line-height: 200%;"> </p><p class="MsoNormal" style="margin-bottom: 6pt; line-height: 200%;"><span style="font-family: "Arial","sans-serif";">Objetivo: O objetivo desse estudo foi comparar as variações de temperatura no interior da câmara pulpar provocadas por dois tipos de instrumento cortante rotatório (ICR), a ponta diamantada padrão e Turbo, que promete redução na transmissão de calor. </span></p> <p class="MsoNormal" style="margin-bottom: 6pt; line-height: 200%;"><span style="font-family: "Arial","sans-serif";">Método: Foram realizados preparos para coroa total na face vestibular de vinte molares humanos extraídos. Os dentes foram divididos em 2 grupos (n-10): Grupo 1 - ponta diamantada padrão nº 4219; Grupo 2 - ponta diamantada Turbo nº 4219T. Para cada preparo foi utilizado um novo ICR e a profundidade do preparo foi de 1,4mm.  A espessura de dentina foi padronizada de 2,81 mm. Para leitura das temperaturas foi introduzido um dispositivo termopar na câmara pulpar. Os foram transferidos para o software IR-graph e submetidos ao teste Mann-Whitney (p<0,05). Resultados: os valores de variação de temperatura (Celsius): Grupo 1 - 0,73 ºC; Grupo 2 - 0,4 ºC. Os preparos cavitários realizados com os dois tipos de ICRs geraram alterações de temperatura semelhantes (p>0.05). </span></p> <p class="MsoNormal" style="margin-bottom: 6pt; line-height: 200%;"><span style="font-family: "Arial","sans-serif";">Conclusão: Os ICRs padrão e Turbo apresentaram mesmo comportamento quanto à capacidade de gerar calor.</span></p> <span style="font-size: 12.0pt; font-family: "Arial","sans-serif"; mso-fareast-font-family: "Times New Roman"; mso-ansi-language: PT-BR; mso-fareast-language: PT-BR; mso-bidi-language: AR-SA;">Descritores: Pontas diamantadas; preparo cavitário; aquecimento; temperatura.</span><p> </p>
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36

Jung, Dongsoo, Soonam Chae, Dongsoo Bae, and Gilsang Yoo. "Condensation heat transfer coefficients of binary HFC mixtures on low fin and Turbo-C tubes." International Journal of Refrigeration 28, no. 2 (2005): 212–17. http://dx.doi.org/10.1016/j.ijrefrig.2004.07.023.

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37

Fernández-Seara, José, Francisco J. Uhía, Rubén Diz, and J. Alberto Dopazo. "Vapour condensation of R22 retrofit substitutes R417A, R422A and R422D on CuNi turbo C tubes." International Journal of Refrigeration 33, no. 1 (2010): 148–57. http://dx.doi.org/10.1016/j.ijrefrig.2009.09.006.

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38

Wang, Hai Tao, and Yun Chun Xia. "The Thermal Stress of a Domestic 300MW Steam Turbo Unit during its Startup and Shutdown." Applied Mechanics and Materials 275-277 (January 2013): 87–93. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.87.

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The simulation system on the thermal stress of the rotor during startup & shutdown for a domestic 300MW steam turbo unit, by the simulation, the surface of the shaft was suffered a crushing stress, but it was a pulling stress when a unit shutdown. The max thermal stress & the max combined stress produced on the rotor of a medium pressure cylinder was about 16% bigger than those on the rotor of the high pressure cylinder when they had the same increase rate of temperature. When thought from economics & safety, the optimal temperature-increase-rate of the rotor was 1.6°C/min when the unit startup at cold state, but it was 1. 8°C/min when started up and shut down the unit at hot state, it’s optimal for slipping-parameter and the optimal temperature-decease-rate of the rotor was 0.85°C/min.
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39

Wang, F., Kai Feng Zhang, and Wen Bo Han. "Superplastic Extrusion of Ultra Fine-Grained 3Y-TZP/Al2O3 Ceramic for Turbine Disk." Materials Science Forum 551-552 (July 2007): 501–6. http://dx.doi.org/10.4028/www.scientific.net/msf.551-552.501.

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Superplastic extrusion of axial forcing and radial flowing under different conditions was adopted to form a turbo-rotor, using hot-press sintered compact of zirconia (3Y)-toughened alumina composite that was prepared at 1450 °C for 1 hour with relative density of higher than 96%. Subsequent superplastic extrusion was attempted at temperature of 1500 °C-1650 °C. The results indicate that 3Y-ZrO2 plays an important role as a second-phase pinning agent and inhibits grain growth. The material shows good deformability and potential of near-net-shape forming. Comparing with undeformed sample, extruded sample was observed apparent coarsening in grain size and the remaining mechanical properties after deformation are not improved, irrespective of improved density. The dominating deformation mechanism is grain sliding and rotation accommodated with zirconia coordinated deformation.
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40

Caiafa Hernandez, Itala Ivonne, Juan Carlos Narvaéz Barandica, and Arturo Acero Pizarro. "Genetic variation and genetic structure of Caranx hippos (Teleostei: Carangidae) in the Colombian Caribbean." Revista de Biología Tropical 66, no. 1 (2017): 122. http://dx.doi.org/10.15517/rbt.v66i1.25770.

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Studies based on molecular genetics offer the possibility to understand the structure of populations and provide data to implement measures designed to protect them. Caranx hippos, is a fish with a wide distribution in the Western Atlantic, becoming one of the most economically important species in the artisanal fishing industry in Colombia. However, little is known about its biology. The present study aimed to evaluate the variation and genetic structure of C. hippos in the Colombian Caribbean by analyzing the mitochondrial DNA region control and cytochrome oxidase subunit (COI). We sequenced the DNA of 153 muscle samples collected from specimens obtained from six fishing ports. The results showed 21 haplotypes for COI and 116 haplotypes for the control region, divided into two lineages that do not exhibit a pattern of geographical distribution. For mitochondrial control region, the estimated haplotype diversity (Hd) presented relatively high values (Hd = 0.99 and = 0.1), while for COI results were Hd = 0.68 and = 0.01; the relationship between haplotype and nucleotide diversity and the neutrality test revealed that C. hippos experienced bottlenecking and a subsequent rapid population expansion. Estimates of genetic structure were low and insignificant, indicating no differentiation between samples collected from geographical isolation. This suggests that for the Colombian Caribbean there is a panmictic population of C. hippos. However, variations were found at population levels, especially in La Guajira, Turbo and San Antero, which, when compared to those included for Brazil and México, demonstrated that unique haplotypes in La Guajira are more aligned to the Brazilian populations, by means of the influence of the Caribbean Current, whilst those from Turbo and San Antero are more frequent in haplotypes originating from Mexico. Future studies should focus the understanding of these processes.
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Kedzierski, Mark A., M. A. Carr, and J. Steven Brown. "MEASUREMENT AND PREDICTION OF VAPOR-SPACE CONDENSATION OF REFRIGERANTS ON TRAPEZOIDAL-FINNED AND TURBO-C GEOMETRIES." Journal of Enhanced Heat Transfer 20, no. 1 (2013): 59–71. http://dx.doi.org/10.1615/jenhheattransf.2013006779.

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42

Krejci, Dieter, and Carl Richter. "Split: A turbo-C program for the graphical representation and separation of fault-slip data sets." Computers & Geosciences 17, no. 6 (1991): 801–11. http://dx.doi.org/10.1016/0098-3004(91)90061-h.

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43

Vanderklift, Mathew A., and Gary A. Kendrick. "Variation in abundances of herbivorous invertebrates in temperate subtidal rocky reef habitats." Marine and Freshwater Research 55, no. 1 (2004): 93. http://dx.doi.org/10.1071/mf03057.

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The present study assessed variation in the abundances of large herbivorous invertebrates in south-western Australia. There was some habitat partitioning between different parts of the reef: of the most frequently recorded species, the sea urchins Phyllacanthus irregularis and Centrostephanus tenuispinus were found primarily at the base of steep rock faces, whereas the gastropods Turbo torquatus and Australium squamifera were found primarily on open sections of reef. The sea urchin Heliocidaris erythrogramma was evenly distributed between these two habitats. For C. tenuispinus and H. erythrogramma, differences among locations (separated by tens to hundreds of kilometers) were the main source of variation in abundances. Phyllacanthus irregularis was more evenly distributed among locations. Abundances of sea urchins at each reef varied little over 26 months, suggesting low mortality and low recruitment. Turbo torquatus and A. squamifera varied significantly in abundance among reefs separated by < 10 km, although these differences were influenced by fluctuations over time. Broad patterns in abundances were evident: overall, abundances of herbivorous invertebrates were low, but certain areas supported high abundances. This suggests that herbivory may be a minor process in this region; however, the importance of herbivory at reefs with and without high abundances of herbivores deserves further attention.
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Seo, Jaehwan, and Bon Joo Koo. "Temperature-Dependent Food Consumption Rates of the Sea Urchin Mesocentrotus nudus and Top Shell Turbo sazae: Potential Impacts on Seaweed Beds." Animals 13, no. 22 (2023): 3436. http://dx.doi.org/10.3390/ani13223436.

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In Korea, the expansion of barren ground and a shift in macrograzer habitats due to increasing water temperatures associated with climate change are becoming increasingly problematic. This study assessed the potential effects of the sea urchin Mesocentrotus nudus and top shell Turbo sazae on seaweed beds by examining changes in their food consumption rates in response to changes in temperature. The food consumption rates of kelp (Saccharina japonica) for both species were estimated at 5 °C, 10 °C, 15 °C, 20 °C, and 25 °C in laboratory experiments. The rate for M. nudus increased with increasing water temperature, with the highest rate of 0.001 g g−1 d−1 at 15 °C and 20 °C, and the lowest at 25 °C, which killed some individual sea urchins. The rate for T. sazae also increased with increasing water temperature, with the highest being 0.087 g g−1 d−1 at 25 °C and the lowest being at 5 °C. T. sazae had a higher food consumption rate than M. nudus at all temperatures; as water temperature increased, the difference between species increased, with the largest difference occurring at 25 °C. These findings indicate that as water temperature increases, T. sazae places greater feeding pressure on macroalgae than M. nudus.
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Cummings, D. O., and J. E. Williamson. "The role of herbivory and fouling on the invasive green alga Caulerpa filiformis in temperate Australian waters." Marine and Freshwater Research 59, no. 4 (2008): 279. http://dx.doi.org/10.1071/mf06238.

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The green macroalga Caulerpa filiformis is rapidly dominating algal assemblages in shallow subtidal regions along the New South Wales (NSW) coast. Given that invasive species are known for their competitive superiority, the interactions between C. filiformis and herbivores and fouling species was investigated and were compared with those co-occurring native species. Extensive field surveys were carried out to assess purported damage from herbivores, and co-occurrence of C. filiformis with herbivorous fish and invertebrate species. Signs of herbivory on C. filiformis were visible, and several common herbivorous invertebrates and fish co-occurred with the alga. Laboratory and field feeding assays with fresh algae indicated that generalist invertebrate herbivores such as Turbo torquatus did not consume C. filiformis, whereas herbivorous fish did consume C. filiformis but not in preference to other palatable algae. C. filiformis was fouled at similar concentrations and with similar epiphytic species to other co-occurring algae. Thus the ability of C. filiformis to deter herbivory and fouling by using biotic deterrents (both chemical and structural) is limited and unlikely to be the major factor driving its successful invasion into NSW habitats.
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L Jordan, David. ""Peanut (Arachis hypogaea) Response to Fungicides and Herbicides Applied using Different Spray Nozzles"." Archives of Agriculture Research and Technology (AART) 5, no. 1 (2024): 1–3. http://dx.doi.org/10.54026/aart/1068.

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Late leaf spot [caused by Nothopassalora personata (Berk. & M.A. Curtis) U. Braun, C. Nakash, Videira & Crous] is an economically important disease in peanut (Arachis hypogaea L.) and fungicides are used routinely to protect peanut from infection and the resulting yield loss. Herbicides are an important component of effective weed management in peanut. Concern over particle drift of pesticides exists in the farming community, especially after stewardship issues associated with synthetic auxin application in herbicide resistant crops in the United States. Spray nozzles that deliver larger droplets that are less prone to drift is a possible solution to this issue. However, fungicides may be less effective in penetrating the crop canopy and covering foliage for protection from pathogens with these nozzles compared with nozzles delivering smaller droplets. Research was conducted to compare suppression of late leaf spot disease when chlorothalonil, prothioconazole plus tebuconazole, azoxystrobin, pyraclostrobin, and chlorothalonil were applied sequentially every 14 days using hollow cone nozzles (fine droplet size), regular flat fan nozzles (medium droplet size), air induction flat fan nozzles (coarse droplet size), and turbo teejet induction nozzles (ultra-coarse droplet size). Regular flat fan and hollow cone nozzles were slightly more effective in delivering fungicides based on canopy defoliation at harvest compared with turbo teejet induction nozzles and in some cases air induction nozzles. However, suppression of pathogens by fungicides applied using all four nozzle types prevented canopy defoliation adequately to protect peanut from yield loss. In a separate experiment, peanut yield and control of common ragweed (Ambrosia artemisiifolia L.) and late leaf spot did not differ at harvest when herbicides and fungicides were applied with air induction or turbo teejet induction nozzles throughout the cropping cycle. These results indicate that farmers can apply fungicides and herbicides to peanut using nozzles that limit potential for particle drift with minimal concern over reduced pesticide efficacy and protection of yield from pests.
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Zaitsev, Serhii V., Vladyslav M. Vasylenko, Taras V. Trysnyuk, and Natalya V. Sokorinska. "Method of adaptation of cascade codes to ensure reliability of information transmission of wireless data transmission systems." Environmental safety and natural resources 47, no. 3 (2023): 133–43. http://dx.doi.org/10.32347/2411-4049.2023.3.133-143.

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The article proposes a method of structural adaptation of cascade codes, designed to ensure the specified reliability of information transmission of wireless data transmission systems in the event of interference, due to the dynamic synthesis of combined structures of cascade codes under conditions of a priori uncertainty. The essence of the method is to identify the internal structure of the code, due to which the structure of the component codes of the turbo code is determined. It was developed using the gradient method due to the implementation of a multi-step iterative procedure for finding optimal system parameters. Implementation of the method allows to ensure the reliability of information transmission of wireless data transmission systems. To check the effectiveness of the method of structural adaptation of cascade codes, a simulation model was developed in the C++ programming language in the Visual Studio 2019 software environment, and wireless data transmission systems were simulated. The simulation results show that the combined structure of building cascade codes together with OFDM technology allows you to independently adapt the coding rate of each of the coding stages depending on the results of the analysis of the reliability of information in this cascade, which leads to the provision of the specified reliability of information transmission, while the BSPD bandwidth is reduced by 4–12% against 20–35% of known results. The use of Reed-Solomon codes in a sequential cascade scheme with turbo codes due to the adaptation of the coding rate of this cascade design allows obtaining an energy gain of 0.5–0.7 dB without increasing the bandwidth of the transmission system compared to systems that use only turbo codes. The obtained results are of significant relevance and can be implemented in the development of information transmission systems to ensure the reliability of data transmission, both in peacetime and in conditions of armed aggression of the Russian Federation against Ukraine.
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Suematsu, H., J. J. Petrovic та T. E. Mitchell. "Dislocation loops in α-silicon nitride single crystals". Proceedings, annual meeting, Electron Microscopy Society of America 50, № 1 (1992): 342–43. http://dx.doi.org/10.1017/s0424820100122113.

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Silicon nitride(Si3N4) is well known to be a most promising ceramic material for high temperature structural applications. It has high strength even at 1200°C and its fracture toughness is about 5 to 7 MPa•m½. Si3N4 has been manufactured on mass production lines as the compressor rotor for turbo chargers. For high temperature use, it is important to know the deformation characteristics of the material and the role played by dislocations and other defects. However, research on the nature of defects in Si3N4 has been limited considering the importance of Si3N4. In this study, we have examined defects in single crystals of Si3N4.
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Kosmanos, Dimitrios, Costas Chaikalis, and Ilias K. Savvas. "3GPP 5G V2X Scenarios: Performance of QoS Parameters Using Turbo Codes." Telecom 3, no. 1 (2022): 174–94. http://dx.doi.org/10.3390/telecom3010012.

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Cellular vehicle-to-everything (C-V2X) communication has recently gained attention in industry and academia. Different implementation scenarios have been derived by the 3rd Generation Partnership Project (3GPP) 5th Generation (5G) Vehicle-to-Everything (V2X) standard, Release 16. Quality of service (QoS) is important to achieve reliable communication and parameters which have to be considered are reliability, end-to-end latency, data rate, communication range, throughput and vehicle density for an urban area. However, it would be desirable to design a dynamic selecting system (with emphasis on channel coding parameters selection) so that all QoS parameters are satisfied. Having this idea in mind, in this work we examine nine V2X implementation scenarios using Long Term Evolution (LTE) turbo coding with a geometry−based efficient propagation model for vehicle-to-vehicle communication (GEMV), where we consider the above QoS parameters for SOVA, log-MAP and max-log-MAP decoding algorithms. Our study is suitable for 3GPP cooperative sensing, for the eight scenarios considering medium and large signal-noise-ratio (SNR) values. The proposed model is sustainable despite a doubled data rate, which results in a minimal bit error rate (BER) performance loss up to 1.85 dB. In this case tripling the data rate results in a further 1 dB loss. Moreover, a small loss up to 0.4 dB is seen for a vehicle speed increase from 60 km/h to 100 km/h. Finally, increasing vehicle density has no effect on the implemented 3GPP scenario considering end-to-end latency, irrespectively from the decoding algorithm.
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50

Kang, Yong Tae, Hiki Hong, and Young Soo Lee. "Experimental correlation of falling film condensation on enhanced tubes with HFC134a; low-fin and Turbo-C tubes." International Journal of Refrigeration 30, no. 5 (2007): 805–11. http://dx.doi.org/10.1016/j.ijrefrig.2006.12.003.

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