bluuebunny/crossref_metadata_2025_split huggingface dataset:
An optimized milling force prediction method for multi-axis ball-end finish milling
Authors: Li Wangfei , Ren Junxue , Lu Yanru , Shi Kaining , Zhou Jinhua , Zhang Jingquan 
Published: August 2023

Abstract
By accurately predicting milling force in finish milling, simulation of the milling process can be effectively conducted, followed by the provision of effective recommendations on optimization of machining process parameters. The prediction of ball-end milling force poses a significant challenge due to the influence of the cutter workpiece engagement (CWE) calculation and cutting force coefficient identification. This paper proposes a precise approach for predicting milling force, which involves an improved calculation method of CWE and an optimized identification approach for cutting force coefficients based on a mechanistic model. In the calculation of CWE, an optimization method considering the dynamic change of undeformed slice thickness and CWE boundary calculation is proposed. Furthermore, an improved approach incorporating interference signal removal and multiple nonlinear regression fitting methods is utilized for cutting force coefficient identification. Subsequently, the resulting prediction is validated through comparison with measurements and demonstrates a prediction accuracy exceeding 94%. The conclusion drawn is that the proposed prediction method for multi-axis ball-end finish milling force exhibits high accuracy in its predictions.
Numerical Research for Hypersonic 3D Flow with High-Temperature Effect and Catalytic Conditions
Authors: Pan Sha , Sheng An , Liu Yunxia , Wan Lv , Xi Wenxiong 
Published: August 2023

Abstract
Investigating the high-temperature effect and catalytic condition with hypersonic flow numerical research was conducted by CFD methods. For comparison, flows were calculated by using a high-temperature nonequilibrium gas model and a calorically perfect gas model. All findings showed that high temperatures alter the flow properties considerably. The flow field structure, temperature distribution, pressure distribution, etc. were different from the calorically perfect gas assumption flow. All these differences would affect the aerodynamical force and aero heat of the fly vehicles with hypervelocity. Furthermore, all conditions of non-catalytic and catalytic effects were computed and compared. The flow with catalytic conditions produces more aero heats due to an exothermic recombination reaction near the wall. The methods and computations could be used for further engineering applications and hypersonic aerodynamical research.
Flap/slat control lever signal algorithm based on potentiometer for civil aircraft
Authors: Cao Junzhang , Cao Yawen 
Published: August 2023

Abstract
A design of flap/slat control lever signal calculation based on a potentiometer for civil aircraft is proposed. The design applies to the dual redundancy FSECU (Flaps Slat Electronic Control Unit) architecture. A range monitoring algorithm is first proposed to confirm the validity of the FSCL (Flap/Slat Control Lever). The value of a single potentiometer is used for one-channel FSCL detent calculation. To solve the difference in FSCL signals among channels, an algorithm for FSCL signal monitoring and voting is proposed. The core of this algorithm is presented by logical description and the flow diagram. The design is verified by modeling and simulation in the Simulink environment. The results are in line with expectations, which can provide a reference for the design of the FSCL signal algorithm.
Thermal-mechanical fatigue life prediction considering fatigue-creep interaction effects
Authors: Yin Xiang , Shang De-Guang , Zhang Gang , Li Dao-Hang , Zhang Hang , Qian Cheng , Zhou Shuai , Hao Guo-Cheng 
Published: August 2023

Abstract
This study proposed a multiaxial variable temperature and amplitude damage assessment model to predict the variable temperature and amplitude fatigue life of high-temperature alloys, which are often subjected to varying multiaxial mechanical and temperature loads. To validate the proposed model, seven variable temperature and amplitude fatigue tests were conducted on GH4169 nickel-based high-temperature alloy. The proposed model shows good accuracy and reliability in predicting the lifetime of high-temperature alloy components under multiaxial mechanical and temperature loads.
SU-Next: An Image Segmentation Model of Breast Tumors Based on U-Next and Attention Mechanisms
Authors: Zhu Dong , Wang Yongfang , Yang Mengzhu , Li Guoqiang , Wang Chengchao , Dong Hao , Kong Xiangxu 
Published: August 2023

Abstract
Breast cancer is one of the most common malignant tumors endangering women’s health today, and timely screening and targeted treatment of such tumors can effectively reduce the incidence of breast cancer. The commonly used method of breast tumors diagnosis is to detect the pathological image of breast tumor to find the spread of cancer cells and the difference in tissue morphology over time. There are a large number of complex problems such as interlaminar variation characteristics and structural and morphological diversity in the pathological sections of breast tumors, and the tumors must be accurately segmented before breast tumor detection, and the accuracy of breast tumor image segmentation directly affects the results of subsequent detection. Aiming at the problem that the U-Next network model is not clearly defined in the marginal region of breast tumors, we propose a SU-Next network model. The model adds an attention module to U-Next, which focuses on the feature values related to the current task and discards irrelevant features. By testing on the BUSI breast dataset, the effectiveness of this method in breast image segmentation was verified. Taking IoU and Dice as evaluation indicators, they reached 64.26% and 77.40%, respectively, and compared with U-Next, SU-Next improved by 1% and 1.19% respectively.
SDenseNet-An Improved DenseNet Model for Spiking Neural Networks
Authors: Guo Ce , Wang Xiaohong 
Published: August 2023

Abstract
In order to port DenseNet to a spiking neural network, its activation function must be modified to spiking neurons. In addition, the direct conversion model suffers from the inability to transmit non-peak sequences across layers and a sluggish training pace. A deep convolutional spiking neural network (DCSNN) architecture called SDenseNet has been designed in order to address these problems. The first step is to adjust the connection sequence of each module layer in the network to ensure that the output of each layer is the spiking sequence; Next, convolutional kernels of different sizes are used in parallel in the Transition layer to extract different features and spliced along the length of the channel in an attempt to build up the performance of the feature extraction. The framework suggested in this paper has demonstrated improvement in benchmark indicators such as training speed, accuracy rate, and mean loss when compared to the framework directly converted to the spiking neural network by training the two publicly image data sets named CIFAR-10 and CIFAR-100.
Experience of using the smart telemetric device “Personal Assistant of the Tractor Driver” for sowing winter wheat
Authors: Ivanov A B 
Published: August 2023

Abstract
The article presents the results of using the smart telemetric device “Personal assistant of the Tractor Driver” to select the most efficient operating modes of the sowing unit in real operation. The authors proposed developments that are aimed at improving the technical characteristics of the tractor in order to increase productivity and reduce the cost of its maintenance. Based on the results of the studies, the authors drew conclusions and presented quantitative and qualitative changes.
Methodology for developing geoinformation project for rational nature management of the land and property complex of the Northern Territories
Authors: Podkovyrova M A , Kondratova T V , Volobuev E A , Volobueva O N 
Published: August 2023

Abstract
The relevance of the study is due to the fact that in recent decades the development of the Northern territories of the Russian Federation (their land and property complexes) is characterized by intensification, which is primarily associated with the needs of the economy and the need for more active involvement of natural resources in economic turnover. It should be noted that both traditional and industrial nature management is carried out over large areas, often coexisting on the same geographical space. As a result, territories are formed where the economic interest of operating companies is confronted with the traditional way of life of the indigenous peoples of the North, in other words, “conflict zones”. In conditions of industrial development of the Northern territories, the most acute problem is the environmental optimization of natural-economic systems, the conservation of natural resources, and the historically established traditional nature management. In this regard, the authors of the paper propose a methodology for the development of a geoinformation project and give its approbation. The project is based on the cartographic and modeling methods using the MapInfo Professional software product.
Morphometric characteristics of the lakes of the Pustynsky district of the projected National Park “Nizhegorodskoe Zavolzh’e”
Authors: Astashin A E , Pashkin M N , Vatina O E , Grechkina S S , Badin M M 
Published: August 2023

Abstract
The paper presents the results of researching the morphometric and hydrological features of a group of lakes in the eastern part of the Pustynsky district of the projected National Park “Nizhegorodskoe Zavolzh’e” (Nizhny Novgorod Region, Russia). The lakes in question are the largest component of the hydrological system of the Serezha River basin on the territory of the Pustynsky district. The Seryozha River flows through most of the largest lakes, and its tributaries flow through some of them. Based on the conducted field studies, certain conclusions were drawn.
Scientific analysis of diagnostics of heating of solar panels and methods of their cooling
Authors: Saryyev Kakageldi , Nazarov Serdar , Gurbanova Gulalek , Matyakubov Amirhan 
Published: August 2023

Abstract
Today, the share of using alternative energy sources has become possible thanks to the study of the potential of a particular geographic area. In many countries, solar and wind energy have become a promising source. The study of a solar energy potential in the conditions of Turkmenistan showed that the potential of a solar radiation throughout the entire territory reaches 700-800 W/m2, and this is a great opportunity to use a solar energy. In the work, an experimental and theoretical study of the efficiency of the solar panel water cooling system in the hot climate of Turkmenistan was carried out. Since the climate of Turkmenistan is sharply continental, in summer the ambient temperature exceeds +40 °C. As a result of the research, the authors found that with an increase in the ambient temperature, the surface temperature of the solar panels also increases, which as a result leads to a decrease in its performance by 20-25%. The developed solution made it possible to reduce the surface temperature of solar panels in the hot climatic conditions of Turkmenistan and increase the current at 1200 hours of the day by 25%, at 1300 by 62%, at 1400 by 58% and at 1500 by 33.3%, to increase power by 19%, 42%, 38%, 18%, respectively, while 2.8, 3.3, 3.9, 5.4, 5.4, 4.9, and 3.2 kW of thermal energy were taken.
Sustainable development of water resources of Tajikistan
Authors: Gafforzoda I G , Arabov F P , Sodikov A K 
Published: August 2023

Abstract
This article considers and discusses the issue of ecological use of water resources of the Republic of Tajikistan. The main attention is paid to the study of the patterns and advantages of the concept of sustainable development in the field of water resources, the analysis and assessment of the availability of water resources in the republic and its individual regions, especially in the southeastern region of the republic, the analysis and determination of the total number of factors affecting the rational use of water resources, processing a set of recommendations aimed at developing the concept of sustainable development in the water sector, developing and implementing modern water management mechanisms and other important issues in this area, which all point to the features of this study. An analysis of the current state of the use of water resources was also carried out, existing problems of the industry were identified and solutions were proposed. It is noted that the Republic of Tajikistan has many competitive advantages in the water sector among the countries of the region, and the need to plan and design the strategic use of large water resources is considered one of the factors to protect and strengthen the competitive position.
Study and evaluation of racemose tomato hybrids in greenhouses in Armenia
Authors: Martirosyan H H , Vardanian I V , Zh Sargsyan G 
Published: August 2023

Abstract
The study was conducted at the Scientific Center of Vegetable-Melon and Industrial Crops of Armenia during spring and autumn vegetation seasons of 2021-2022. Foreign and local breeds of greenhouse F1 tomato racemose hybrids were studied, namely, Prodezo, Santiana, Adventure (Rijk Zwaan), Climbo (Syngenta) and the new Armenian hybrid RM-4. Hybrid Prodezo F1 was used as a control. Phenological observations, detailed studies of morphological characteristics of the hybrids and assessment of plant productivity were carried out during the research. Phenophase observations revealed that the period of the emergence of the first fruits in hybrids Adventure, Climbo and RM-4 had reduced by 6-7 days as compared with the control. The hybrids Adventure and RM-4 stood out by their relatively high total yield during the spring growing season, their average yields being 15.7 and 15.4kg/m2, which corresponded to an increase in control – 8.3 and 6.2%, respectively. Climbo and Adventure stood out during autumn vegetation with average yields 12.7 and 12.6 kg/m2, the increase to the control being 10.4 and 9.6% respectively.
Compilation of regional, national and pan-European approaches to biodiversity conservation in the protected area projecting on the example of the National Park “Nizhegorodskoe Zavolzhye” (Nizhny Novgorod Region, Russia)
Authors: Bakka S V , Kiseleva N Y , Bahtyurina L A , Shestakova A A , Noskova O S 
Published: August 2023

AbstractThe paper considers the compilation of regional, national and international approaches to the biodiversity conservation when selecting the territory and projecting the National Park in general. It is shown that the territories most valuable for the biodiversity conservation in the region meet the criteria of high national and international environmental importance. The National Park “Nizhegorodskoe Zavolzhye”, projected in the Nizhny Novgorod Region, will be important for the protection of 313 rare and endangered wildlife species in the region: 42 species are recognized as endangered in Russia and 84 – in Europe. All 8 types of endangered habitats in the region are represented in the National Park. The protected area will be of the utmost importance to conserve 6 types of such habitats. Sites of the National Park include 21 habitats of special conservation interests for Europe. A large number of endangered and vulnerable wildlife species and habitats in the Park are the basis for the successful solution of problems not only of nature conservation, but also of the development of ecological tourism.
Comparative Analysis of the conditions for the red tidies development at the Cretaceous–Paleogene boundary of the Stevens Klint and Zumaia sections
Authors: Egorov P I , Nesterov E M , Dubrova S V , Shmoylov K I , Markova M A 
Published: August 2023

Abstract
The closest mass extinction to present occurred at the Cretaceous–Paleogene Boundary. The article presents the results of a geochemical study of the sections Stevens Klint (Denmark) and Zumaia (Spain). Authors built petrochemical modules (CIA) and indicators which demonstrate differences in the evolution of the environment at the K / T boundary. On the basis of the modern behaviour and development of dinoflagellates, an assumption was made about the possibility of the development of red tides as a chain of catastrophic events at the K / T boundary. It is shown that the conditions of southern latitudes demonstrated the best conditions for the development of red tides and the creation of anoxic zones. While in the northern regions, red tides could only be sporadic and could not be the cause of the biotic crisis that began in the aquatic environment.
Interaction of plant polysaccharides (inulin, guar gum) with the 20-hydroxyecdysone from quinoa and spinach
Authors: Bokov D O , Bogachuk M N , Malinkin A D , Nazarova V A , Bessonov V V 
Published: August 2023

Abstract
The use of plant extracts rich in primary and secondary plant metabolites as biostimulants in agriculture is a modern approach for increasing the sustainability of crops. Quinoa seeds (Chenopodium quinoa Willd.) and spinach leaves (Spinacia oleracea L.) are a valuable source of biologically active compounds of plant secondary metabolism such as polyphenolic compounds and ecdysteroids. An important producers of primary plant metabolites – polysaccharides – are common chicory (Cichorium intybus L.), used to obtain inulin and cluster bean (Cyamopsis tetragonoloba (L.) Taub.), which accumulates guar gum. The study of the interaction of primary and secondary metabolites of plants is an essential component of research in order to increase their resistance to biodegradation and preserve the optimum of biological action. This paper presents data from a preliminary study of the interactions of components derived from plant raw materials in an in vitro model system. Evaluation of the sorption capacity of plant polysaccharides (inulin, guar gum) was carried out in relation to 20-hydroxyecdysone (20E) – a minor biologically active substance (BAS) of extracts from spinach leaves and quinoa seeds. The sorption ratio of 20E was 92.25-95.87% for the studied concentrations of inulin model solutions. Sorption ratio for a solution of guar gum with a concentration of 0.5% was 94.17-96.00%, in other cases, a complete sorption of 20E was observed. Thus, one should be guided by the optimal ratio of polysaccharides and extracts enriched with 20E to ensure the maximum physiological effect.
Status and potential of forests self-regeneration in the Middle Volga region under pyrogenic load
Authors: Ilyina V N , Kozlovskaya O V , Amosova A A , Belyaeva Yu V , Kuzmin D I 
Published: August 2023

Abstract
The question of forest status in the Middle Volga region under anthropogenic load is considered. Forest stand vulnerability to fires depends on many factors: age, vitality, exogenous environmental factors. The renewal of forest communities is characterized by a change and impoverishment of phytocenoses.
Effect of oil and surfactants on changes in some physical properties of soils
Authors: Rumin M B , Cherkasov D V , Lopatovskaya O G , Zhdanova G O , Kupchinsky A B , Stom D I 
Published: August 2023

Abstract
The paper shows that oil pollution of gray forest and soddy-podzolic soils led to a decrease in capillary water capacity, plasticity and solid phase of soils. As a result of the introduction of the nonionic surfactant tween-80 into the oil-contaminated soil, these indicators were partially restored, but their values remained lower than in soil samples subjected to oil treatment. The obtained materials allow us to speak about the fundamental possibility of using surfactants for the remediation of oil-contaminated soils.
Cable Tension Estimation For The Cable-stayed Bridge With Hysteresis Damping
Authors: Huynh-Thai An , Pham-Bao Toan 
Published: August 2023

Abstract
Damping materials are popular applications for almost vibration structures; however, they have rarely been investigated in different practical experiments. That is why new approaches would be necessary to assess these problems. In this study, the mathematical model of cable is remarkable in assessing the cable tension of the cable-stayed bridge. A differential vibration equation is used to derive the cable tension considering material damping as the hysteresis phenomenon. The experimental measurements of cable vibration at Phu My Bridge are calculated to find approximate damping ratio and tension values. The selected damping model with experimental data has been collected to derive an efficient method for evaluating structure status. These values are used to assess damping efficiently in the cable-stayed bridge structures. The results presented in this paper shall help elucidate experimental procedures for characterizing damping materials. The proposed procedures are used not only for the cable-stayed bridge but also for generally cable-stayed structures.
Applications of Passive Infrared Thermal Imaging for Detecting Delaminated Areas of Ancient Rock-cut Tunnel
Authors: Tran Quang Huy , Dang Quoc My , Pham Xuan Tung , Truong Thanh Chung 
Published: August 2023

Abstract
Delaminations are generally developed in construction works due to numerous factors, including cyclic loading, water flow, and weather conditions. A conventional non-destructive method, such as tapping or chain dragging, is commonly used to predict subsurface delaminations. However, tapping tests may require more precision, especially for minor subsurface defects. Passive Infrared Thermal Imaging or Passive Infrared Thermography (PIRT) effectively detects sizable delaminated areas of a structure quickly. However, the inspected structural components are recommended to be exposed to direct sunlight. In this study, PIRT was used to investigate an operating ancient rock-cut tunnel and to detect potentially dangerous locations where delamination and spalling have occurred. The results prove that PIRT can effectively detect delaminated areas, even when there is only a 1-2°C atmospheric temperature difference nine hours before testing.
Experimental studies of the reusable steel deck forms for concrete slabs
Authors: Tuan Nguyen Canh , Tung Dang Dang 
Published: August 2023

Abstract
Recently, many flyover steel bridges have been built due to high demand of transportation development mega cities in Vietnam, especially in Ho Chi Minh City and Ha Noi City. The steel bridges are selected as effective solutions in urban area because of their advantages such as rapid construction, aesthetic design, high performance. For the construction method of concrete deck slab, wood panels, plastic panels, and precast concrete panels are often used to reduce construction costs. From actual construction projects, these form solutions may not be suitable for large span over 2.0 meters and take more time to install and to dismantle. This study aims to develop an improved solution with reusable steel deck forms for bridge slabs which has been used as permanent deck forms in buildings. Experimental studies are conducted to investigate the frequency of reusability and to verify the bending capacity of the steel deck after many times of reuse. The experiments are separated into two phases including concrete casting stage and strength tests in laboratory. Bending strengths of reused forms are compared with that of new one. Results shows that steel deck forms are still in good condition and provide sufficient bending capacity after 10 times of concrete casting comparing. Therefore, reusable steel deck forms can be effectively applied in the construction of bridge slabs to optimize the construction time and cost.