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4081
Exact Longitudinal Vibration Characteristics of Rods with Variable Cross-Sections
Published 2011-01-01“…Longitudinal natural vibration frequencies of rods (or bars) with variable cross-sections are obtained from the exact solutions of differential equation of motion based on transformation method. For the rods having cross-section variations as power of the sinusoidal functions of ax+b, the differential equation is reduced to associated Legendre equation by using the appropriate transformations. …”
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4082
The application of multidisciplinary team combined flipped classroom teaching model in oral general course for clinical undergraduates
Published 2025-01-01“…Based on the concept of MDT, this study combined the theory and practice of flipped classroom teaching method to evaluate the teaching effect, so as to provide a basis and reference for the thinking transformation of medical students to clinicians. …”
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4083
Causes of the Outer Spiral Rainbands in Typhoon Yagi ( 2018) in Shandong Province of China
Published 2025-06-01“…On August 14, 2018, Typhoon Yagi (2018) moved northward and impacted Shandong Province of China, resulting in widespread rainstorm and heavy rainstorm.The total rainfall caused by the typhoon in Shandong presents a round-shaped distribution.Specifically, on August 14, an outer spiral rainband appeared on the typhoon periphery in southeastern Shandong, bringing short-term heavy rainfall and local heavy rainstorms.Due to the relatively small scale of this rainband, both numerical forecasting models and forecasters face challenges in predicting its rainfall accurately.To study the mechanisms of the outer spiral rainbands of Typhoon Yagi, the characteristics and causes of the spiral rainbands are investigated in this study by using radar data and the observations from ground-based stations, radiosonde stations and aircraft.Numerical experiments are also conducted based on the Advanced Research WRF (Weather Research and Forecasting) model and its Hybrid-3DVAR (three-dimensional variational) data assimilation system.The model adopts 12 km and 4 km one-way nested grids, with 44 vertical layers.The initial ensemble perturbation fields are generated by using a stochastic perturbation method, and the Ensemble Transform Kalman Filter (ETKF) method is used for the bias correction of ensemble forecast, providing flow dependent background errors for the Hybrid-3DVAR assimilation module.Comparative experiments with and without the Aircraft Meteorological Data Relay (AMDAR) data assimilation are conducted by adopting 100% flow-dependent error covariance and by using a 45-minute assimilation time window.The results indicate that the outer spiral rainbands are formed by the merging and development of several linear mesoscale convective systems (MCSs).The outer spiral rainbands exhibit distinct characteristics of the linear MCSs with leading stratiform precipitation, i.e., the linear MCSs consist of several convective cells with back-building convection.There are several stronger linear MCSs merging laterally into other linear MCSs.Broad stratiform echoes appear in the front (eastern part) of the linear MCS in its maturity stage, and the convection develops up to 10 km or more.There is a weak-echo transition zone between the strong convective line and the sub-strong stratiform echo region.Short-term heavy rainfall occurs along the linear MCS at the maturity stage.The water vapor of heavy rainfall mainly comes from the near-surface layer (below 850 hPa) around the typhoon, and the water vapor flux convergence is mainly concentrated near the wind field convergence line.Before convection initiation, the middle and lower levels over Shandong are thermally unstable with high temperature and high humidity, and the wind rotates clockwise with height, which favor the development of convective systems.As the typhoon slowly moves northward, downward intrusion of cold air appears at 500 hPa.Below 900 hPa, on the southeast of the typhoon over central Shandong there are local convergence between southwesterly wind and southerly wind, and between southerly wind and southeasterly wind.The convergence-induced dynamic uplift triggers the release of unstable energy, stimulating several local linear MCSs.The MCSs develop northward along the steering flow.The linear MCSs merge and strengthen for several times, and finally the elongated spiral rainbands occur.During the convection lifetime, the updrafts are noticeably stronger than the downdrafts.At the mature stage of the convective systems, dry and cold downdrafts appear in the lower levels in the front of the MCS.Convective systems at the heights above 600 hPa move rapidly eastward with the upper-air steering flow, leading to the gradual weakening and dissipation of the linear MCS.Assimilation of AMDAR can improve the typhoon track and wind field forecasts of the WRF model, as well as the dynamical triggering mechanism of convective systems.Thus, the occurrence of spiral rainbands in the typhoon periphery could be accurately forecasted.Furthermore, central Shandong is a mountainous region, so how does the topography influence the triggering and developing of convective systems? …”
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4084
THE HERMENEUTICS OF THE ANCIENT MYTH IN THE VALUATION OF CULTURAL DIMENSIONS
Published 2024-12-01“…However, the essential force is the artist’s individuality in which both immediately recognizable aspects and hidden elements shine through and are layered. The hermeneutic method of the myth presents the route of the actualization of the ancient myth involved in different arts.…”
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4085
Screening of Cellulase Producing Strains and Study on Their Enzymatic Properties
Published 2025-08-01“…The cellulase-producing strains were screened by plate screening using Congo red staining method and enzyme activity screening using 3,5-dinitrosalicylic acid method, and the cellulase-producing strains were subjected to colony morphological observation, physiological and biochemical characteristics and molecular biology identification, to investigate the enzyme production of the strains under different stress conditions, as well as the enzymatic properties of the cellulase produced by the strains. …”
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4086
Moving Object Localization Using Optical Flow for Pedestrian Detection from a Moving Vehicle
Published 2014-01-01“…The regions of moving object are detected as transformed objects, which are different from the previously registered background. …”
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4087
On Spelling Adaptation of Initial Consonants in Russian Borrowings in Yakut Language
Published 2018-05-01“…Dyachkovskiy on the description of the system of Yakut language consonants. The main methods of work are the continuous sampling method, lexicographic analysis method, descriptive method. …”
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4088
Gene Expression Music Algorithm-Based Characterization of the Ewing Sarcoma Stem Cell Signature
Published 2016-01-01“…Gene Expression Music Algorithm (GEMusicA) is a method for the transformation of DNA microarray data into melodies that can be used for the characterization of differentially expressed genes. …”
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4089
Research on Block between Subway Line Adjacent Interlocking Stations Based on Network Communication
Published 2020-03-01“…In order to ensure the traffic safety between subway line adjacent stations, a blocking method based on network communication was proposed. …”
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4090
Designing a Smart Leadership Model for Education Managers
Published 2025-02-01“…Abstract The aim of the present study is to design a smart leadership model for education managers. The research method is applicable according to its purpose, and its method is qualitative and of the type of content analysis. …”
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4091
Image Segmentation Techniques for Intelligent Monitoring of Putonghua Examinations
Published 2022-01-01“…Among them, they can be broadly classified as region-based segmentation methods, threshold-based segmentation methods, edge-based segmentation methods, specific theory-based segmentation methods, and deep learning-based segmentation methods. …”
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4092
Economic evaluation and investment decision-making process of deep coalbed methane exploration and development projects
Published 2025-03-01“…In light of the characteristics of deep coalbed methane resource development and economic evaluation, an evaluation method and indicators based on the discounted cash flow method are constructed and applied to the typical simulated development project A in Daning-Jixian block on the eastern margin of the Ordos Basin. …”
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4093
Anxiety and suspension of childbearing in the context of social changes: A qualitative study
Published 2025-04-01“…The categories of this anxiety and suspense were: individualism (the growth of individual values among couples), cultural reflection (a different look at culture and the transformation of cultural values), risk perception (worry about living in a risky society) and gender inequality (the inequality of tasks between men and women). …”
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4094
Use me wisely: AI-driven assessment for LLM prompting skills development
Published 2025-07-01“…Prompting with large language model (LLM) powered chatbots, such as ChatGPT, is adopted in a variety of tasks and processes across different domains. Given the intrinsic complexity of LLMs, effective prompting is not as straightforward as anticipated which highlights the need for novel educational and support methods that are both widely accessible and seamlessly integrated into task workflows. …”
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4095
Evolution strategy of 5G network based on cloud-native computing
Published 2018-06-01“…Cloud-native computing which is from IT domain covers a range of paths and methods that apply to different industries and also meet the needs of business diversity.Based on the 5G service-based architecture,advantages and challenges of introducing cloud-native computing into telecommunication networks were analyzed,cloud-native computing design,deployment and operation methods for telecommunication networks were introduced,the common principles of cloud-native computing that can be adopted by communications service providers were discussed,in order to promote the transformation of traditional telecommunication networks into 5G smart networks.…”
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4096
LSTM-based Prediction of Short-term Water Level for Three Gorges and Gezhouba Cascade Powerplants
Published 2025-04-01“…Nevertheless, due to the combined effects of multiple factors, such as the complex transformation between dynamic and static storage-capacity calculations and the unsteady flow downstream of the stations, traditional methods struggle to accurately predict short-term water levels. …”
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4097
The study on dynamic modeling and path planning of a manta ray-inspired underwater glider
Published 2025-01-01“…The path planning problem is transformed into a multi-objective optimization problem by incorporating the performance evaluation model into the research and solved using the Non-dominated Sorting Genetic Algorithm-III (NSGA-III) algorithm for different motion strategies. …”
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4098
SignFormer-GCN: Continuous sign language translation using spatio-temporal graph convolutional networks.
Published 2025-01-01“…Our method, SignFormer-GCN, achieves competitive performance in RWTH-PHOENIX-2014T, How2Sign, and BornilDB v1.0 datasets experimentally, showcasing its effectiveness in enhancing translation accuracy through different sign languages. …”
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4099
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4100
Online Eye Tracking for Aphasia: A Feasibility Study Comparing Web and Lab Tracking and Implications for Clinical Use
Published 2024-11-01“…Discussion & Conclusions Web‐based eye tracking is feasible to study impaired language processing in aphasia and is sensitive enough to detect most group differences between controls and patients. Given that validations of webcam‐based tracking are in their infancy and how transformative this method could be to several disciplines, much more testing is warranted.…”
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