ANALYSIS OF DYNAMIC LOAD STRENGTH OF WIND TURBINE ROOT BOLT UNDER TURBULENCE MODEL by HAN Wen, CHEN ChangZheng

“…As an important connecting and fastening part of wind turbine blade,blade root bolt plays an important role in the operation of wind turbine. …”
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科隆蛋扣件钢轨波磨演化对车轨系统的影响 by 雷震宇, 徐瑶, 王志强, 赵阳, 李莉

“…By using the multi-body dynamics software UM,a vehicle-track coupling dynamic model based on the flexible track was established.The superposition model based on the friction work theory was used to study the characteristics frequency of the rail corrugation evolution of Cologne-egg fasteners and its effects on the vertical vibration of the vehicle-track system.The results show that the characteristic frequency of corrugation remains the same at different speeds,which reflects the fixed frequency characteristics of rail corrugation.During the evolution trend of rail corrugation,with the increase of speed,in the middle and high frequency bands,the difference of the vertical vibration of the car body gradually becomes smaller,while the bogie is the opposite.Speed has little effect on the vibration change of the track structure.The maximum vertical magnitude of the rail appears at 160 Hz,while the maximum of the track slab appears at the low frequency band of 16 Hz ～ 31.5 Hz.…”
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Landscape Design: Drawing a Planting Plan by Gail Hansen

“…This 10-page fact sheet was written by Gail Hansen and published by the UF Department of Environmental Horticulture, January 2012. …”
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Alternative estimation of effective Youngs Modulus for Lightweight Aggregate Concrete LWAC by Meriem Fakhreddine Bouali, Abdelkader Hima

“…The Maxwell, Counto1 and Hashin-Hansen models are in close concordance with the experimental Youngs modulus of all LWAC used for comparison in this study (119 values). …”
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Robust resource allocation algorithm for multicarrier NOMA security communication system by Yu ZHANG, Xiongwen ZHAO, Xiaoqing WANG, Suiyan GENG, Peng QIN, Zhenyu ZHOU

“…To improve the spectrum efficiency and enhance the information security of wireless network, a sum secrecy rate maximization-based robust resource allocation algorithm was proposed for a downlink multicarrier NOMA security communication system.Firstly, the artificial noise (AN) precoding vector was designed to be orthogonal to the legitimate channel, so that the legitimate transmission would not be affected by the AN.Then, considering the constraints of rate requirement of each user and the maximum transmit power of base station, a joint AN precoding, downlink data precoding and subcarrier allocation optimization problem was formulated under eavesdropping channel uncertainties.To solve that non-convex problem, it was decomposed into two joint optimization subproblems: precoding optimization and subcarrier allocation.The former was solved based on S-procedure and block coordinate descent (BCD) algorithm, the latter was solved by dynamic matching theory.Simulation results demonstrate that the proposed algorithm has good robustness and can effectively improve the sum secrecy rate.…”
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Determination of the Sediment Carrying Capacity Based on Perturbed Theory by Zhi-hui Ni, Qiang Zeng, Wu Li-chun

“…After that, the new formula was verified through measuring data of natural rivers and flume tests and comparing the verified results calculated by Cao Formula, Zhang Formula, Li Formula, Engelung-Hansen Formula, Ackers-White Formula, and Yang Formula. …”
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Landscape Design: Drawing a Planting Plan by Gail Hansen

“…This 10-page fact sheet was written by Gail Hansen and published by the UF Department of Environmental Horticulture, January 2012. …”
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Determination of geometry of cutting tool for smallsize machining of parts made of titanium alloys by D. S. Rechenko, D. G. Balova, A. K. Aubakirova, R. U. Kamenov, D. E. Levin

“…The aim of the research is testing new constructions of carbide end tools allowing to obtain the required quality parameters of fasteners of the screw for osteosynthesis ensuring the minimum defective layer. …”
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A Vehicle Parking Detection Method Based on Correlation of Magnetic Signals by Hongmei Zhu, Fengqi Yu

“…The proposed method is simulated and tested on the Xueyuan Boulevard, University Town of Shenzhen, Nanshan, Shenzhen, China. The experimental results show that the proposed method can provide the detection accuracy of 99.33% for arrival and 99.63% for departure.…”
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Seasonal Variations of the Urban Thermal Environment Effect in a Tropical Coastal City by Yao Yuan, Chen Xi, Qian Jing, Ndayisaba Felix

“…The center of UHII gravity shifts converged in the Longhua, Baoan, and Nanshan Districts throughout the four seasons and Moran’s I values were higher in summer and spring. …”
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Rapid Onset Severe Immune Thrombocytopenia following mRNA COVID-19 Vaccine in a Young Patient by Jorge Avila, Huseyin Berk Degirmenci, Pamela Contreras Chavez, Elisabeth M. Battinelli, Jorge Fleisher

“…Vaccination against COVID-19 has been approved for the following three vaccines in the United States: Pfizer-BioNTech, Moderna, and Janssen. Hematological complications of vaccination have been reported in the literature but remain as a rare phenomenon. …”
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Impact of Rapid Urbanization on Shenzhen Water Environment by JIANG Yu, ZHANG Qiuying, LI Fadong, HU Jiangling, LI Caole, WANG Fan

“…The water environment of Shenzhen Bay,one of the key waters in the Guangdong-Hong Kong-Macao Greater Bay Area,is mainly influenced by the urbanization of the surrounding areas.Water resource protection and water environment governance are particularly important for Shenzhen,a water-deficient city.This paper explores the specific influence relationship between each factor and the water environment in the process of urbanization.The comprehensive water pollution index and Pearson correlation analysis are utilized to analyze the relationship of the changes in population size and industrial structure with the water environment of Shenzhen Bay in urbanization.The research shows that the main pollutants in the water environment of Shenzhen Bay are chemical oxygen demand (COD) and ammonia nitrogen (NH₃-N),and some pollutants come from urban non-point source pollution.The water quality in Nanshan District is good,while that in Futian District is poor,but the overall water quality shows a trend of improvement.The water environment is less affected by population change and more affected by industrial structure change.Therefore,formulating reasonable policies to guide the transformation of the industrial structure is an effective way to improve the water environment of Shenzhen Bay.…”
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Computation Method for the Settlement of a Vertically Loaded Pile in Sloping Ground by Chong Jiang, Wen-yan Wu, Jia-li He, Lu-jie Chen

“…By establishing the relationship between the initial tangent modulus and the compression modulus of the slope soil, the tangent modulus of the slope soil is obtained combining with Mindlin-Geddes solution and Hansen formula, and the solution of the pile settlement in sloping ground is derived. …”
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El enigma de la parte central del Ms. Aubin No 20 y la relación con sus copias by Katarzyna Mikulska

“…This view does not seem to have been questioned, apart from a doubt expressed by Maarten Jansen some time ago. Therefore, when a reproduction of Ms. 20 is needed in any publication, it is frequently accompanied by the reproduction of the copy made by León y Gama (BNF, Ms. …”
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Estancamiento secular by Alvin H. Hansen

“…El crecimiento económico es impulsado por tres factores principales: innovación tecnológica, descubrimiento de nuevos recursos y aumento de población, al menos esto es lo que se había visto en la práctica durante el siglo XIX, pero fue refutado por los efectos económicos de las guerras mundiales y la Gran Depresión. Alvin H. Hansen estudia este contexto y plantea que existe un estancamiento secular originado por el cierre de las fronteras económicas, la lentitud del progreso técnico y el decrecimiento de la población. …”
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Changement de topique et prise en charge énonciative : le rôle de toujours est-il que by Véronique Lenepveu

“…This article follows a first paper (Lenepveu, 2015) which provided an aspectual and diachronic analysis of the French lexicalized expression toujours est-il que in continuation of Hansen (2004) and Buchi (2007). It was shown that the lexicalized expression marks a return to the main discourse topic (Van Dijk, 1976; Fraser, 2009a and b) and simultaneously that it reinforces the speaker’s commitment. …”
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Thermodynamics from the S-matrix reloaded, with applications to QCD and the confining Flux Tube by Pietro Baratella, Joan Elias Miró, Emanuele Gendy

“…In this work, we critically review and further develop the formalism introduced by Dashen, Ma, and Bernstein, which connects the thermodynamics of relativistic systems to the information contained in their scattering amplitudes. …”
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Treatment of a Refractory Skin Ulcer Using Punch Graft and Autologous Platelet-Rich Plasma by Mauro Carducci, Marcella Bozzetti, Marco Spezia, Giorgio Ripamonti, Giuseppe Saglietti

“…The ulcer was prepared by removing fibrin with a curette and the edges of the ulcer were freshened. The platelet-rich plasma has been infiltrated on the bottom and edges of the ulcer. …”
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COVID-19 Booster Vaccines Administration in Different Countries by Angel Yun-Kuan Thye, Loh Teng-Hern Tan, Jodi Woan Fei Law, Vengadesh Letchumanan

“…This includes COVID-19 vaccines by Pfizer-BioNTech, Moderna, AstraZeneca, Janssen, Sinovac, and Sinopharm. Findings suggested that protection against COVID-19 provided by these vaccines may be waning or that the protection reduces against variants of concern (VOC) or even inadequate protection of the primary vaccination for some risk groups. …”
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A systematic review of nanocarriers used in medicine and beyond — definition and categorization framework by Sabine Gressler, Christina Hipfinger, Florian Part, Anna Pavlicek, Christian Zafiu, Bernd Giese

“…Inspired by medical research, nanocarriers are also increasingly being used for precision farming (nano-agrochemicals) or products, such as air fresheners or lithium-ion batteries, and could thus be released into the environment in large quantities. …”
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