Effect of Solvents on the Adsorption Properties of Benzo[α]pyrene-imprinted Polymers by Bhagyashree Bhagat, Reddithota J. Krupadam

“…In order to complement the experimental observations, HyperChem software-based computer simulations were used to calculate the interaction energy between B[α]P and the functional monomer (methacrylic acid) in different solvents. The theoretical predictions correlated well with the experimental results and the method proposed in this study could be useful in the combinatorial screening of polymer precursors for the preparation of polymers with the desired properties. …”
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Clustering in Celebrating Professor Themba A. Dube (A TAD Celebration II) by Inderasan Naidoo

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Study on an effective integrated model of Ka-band mobile satellite channel by Juan WEI, Da LIU, Gang-qi TIAN

“…In order to describe the Ka-band mobile satellite communications channel fading features more realitically,a mobile satellite integrated channel model was proposed.The characteristics of the mobile satellite propogation channel were analysed in detail.Weather conditions,as well as multi-path fading and shadowing were taken into account as main influencing factors.On this basis,airspace channel model was built obeying the Gaussian distribution as well ground surface,which obey Rice,Rayleigh and Lognormal joint distribution.Then the integrated channel model was presented considering weather effects on condition that the two parts are independent each other in the influence of the channel characteristics.The mathematical analysis model and simulation model of the new integrated channel model were established respectively.Finally,the BER(bit error rate)performance was analyzed for different weather conditions and shadows.Compared with the theoretical BER,the integrated channel model in satellite mobile communication systems is correct and reasonable.…”
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Research on Deviation Analysis and Proportional Correction Method for Face Gear Tooth Turning by Ren Minghui, Wei Bingyang, Deng Xiaozhong, Han Zhengyang

“…Based on the mathematical model of gear turning cutters and face gears, a tooth surface deviation model for gear turning is established using gear shaping as the theoretical tooth surface. Using the incremental method, the influence of machining parameters such as offset distance, cutting depth, shaft intersection angle, and rolling ratio on tooth surface accuracy is analyzed, and a method for correcting the tooth surface deviation ratio of face gears is presented. …”
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Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power by Lei SHEN, Hai-quan WANG, Zhi-jin ZHAO, Min-hong SUN

“…Based on t-distribution and Anderson-Darling test,the first,a method was proposed of spectrum sensing under assumptions that the noise variance was unknown and also the channel information was unknown.Indeed,the sensing was conducted based on Anderson-Darling distance between the distribution of ratio of sample’s mean to sample’s variance and the t-distribution.The second,another sensing method was proposed,under the same assumptions as the above,based on Anderson-Darling distance between the empirical characteristic function and a known characteristic function.The third,lower bounds on detection probabilities of sensings above were given for a flat,slow fading channel.Theoretical analysis and simulations show that the performances of proposed methods are much better than energy detector-based sensing with known noise variance,especially under an environment of a low signal to noise ration(SNR),or small number of samples.…”
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Modeling and performance analysis of train communication network based on switched ethernet by Yu-zhuo ZHANG, Yuan CAO, Ying-hong WEN

“…In order to meet the information transmission requirements of large capacity,high speed and hard real-time in the future,switched ethernet was introduced to the train communication network (TCN).Messages of different priorities was investigated,and established the TCN transmission process model with determined and stochastic Petri nets (DSPN) in accordance to its communication scheduling mechanism.The influences of different switch scheduling algorithms to the delay were compared,and the relationships between throughput and message number,throughout and generating cy-cle were respectively investigated.The experimental results show that the priority scheduling algorithm can reduce the delay of real-time data under the condition of sacrificing non real-time data's delay.It also verify the throughput of TCN based on switched ethernet is much higher than that of the existing TCN,which can provide theoretical basis for the de-sign and optimization in the future.…”
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A critical analysis of the Mises stress criterion used in frequency domain fatigue life prediction by Adam Nieslony

“…Therefore the direct use of equivalent von Mises stress criterion for fatigue life prediction can lead to some incorrectness of theoretical and practical nature. In the present study four aspects were discussed: influence of the value of fatigue strength of tension and torsion, lack of parallelism of the SN curves, abnormal behaviour of the criterion under biaxial tensioncompression and influence of phase shift between particular stress state components. …”
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Op soek na'n Mediabestel vir Suid·Afrika by Arnold de Beer

“…It is argued that Tomaselli Is prone to state a debatable point as a "scientific fact" and then proceeds to build a whole theoretical argument on this and similar "facts". It is fur ther argued that his article: 'Vrye Weekblad' and post-apartheld mania; what to do with the press? …”
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Malaria model with stage-structured mosquitoes by Jia Li

“…A basicanalysis for the stage-structured malaria model is provided and it is shownthat a theoretical framework can be built up for further studies on the impactof environmental or climate change on the malaria transmission. …”
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Explore Machine Learning's Prediction of Football Games by Pan Bomao

“…This study not only helps to improve the analysis ability of football matches, but also provides a theoretical basis for the optimization of game strategies.…”
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Constructing a New Regionality: Daphne Marlatt and Writing the West Coast by Michelle Hartley

“…This article then argues that Daphne Marlatt’s work from the 1970s to 2013 offers a particularly compelling example of how theorizing regionality can open up perception of regions and the writing that emerges from them.…”
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Guépard-gazelle : entre prédation et care, construction de l’ethos discursif de femmes chasseresses by Guillonne Balaguer

“…Starting from a feminist theoretical context that links women and animals to the same male oppression (the figure of the prey-woman), I examine the strategies of adaptation and avoidance in the words of the female hunters who took part in my study, and then the way in which they construct an ethos of empowering predators, in a positive axiology of animality, while refusing the status of prey-woman. …”
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Ensuring the economic security of the country in the new geopolitical realities by Yu. N. Kafiyatullina, G. P. Kharchilava

“…For each assessment area, indicators should be identified that have a preventive nature and make it possible to detect a growing potential threat. In the research theoretical provisions on economic security are considered; existing threats to economic security in geopolitical realities are formulated; indicators presented by the Federal State Statistics Service are identified that allow assessing the threat degree; directions for ensuring economic security are developed.…”
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Influence of Speed and Load on Meshing Impact of Spiral Bevel Gear by Zhai Xiangyi, Yang Jianjun, Hu Xinfang, Zhang Hua

“…If the load is fixed, the increase of the speed will aggravate the meshing impact between the teeth, if the speed is constant, the intensity of meshing impact between the teeth can be reduced and the stability of transmission can be improved by properly increasing the load. It has certain theoretical significance for vibration reduction and noise reduction of spiral bevel gear transmission system.…”
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Pourquoi vient-on voir l’Everest ? Représentations collectives et pratiques touristiques dans la région du Khumbu by Etienne Jacquemet

“…The popularity and increasing openness of the Everest region and its inhabitants to globalisation, which could theoretically call into question the meaning and very principles of this heterotopia, do not seem to affect the experience of trekkers, despite the fact that their practices are based on a complete break with the places and time frames of their everyday life.…”
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La créativité des concepteurs-rédacteurs : publicité digitale et communication environnementale by Didier Courbet, Marie-Pierre Fourquet-Courbet, Séverine Halimi-Falkowicz

“…Despite the significant presence of persuasive communication messages little empirical research has studied the cognitive processes underlying their creation. Lying on a theoretical frame, based on creativity models, cognition and social representations, this exploratory qualitative research aims to better understand the creation processes of two different French populations of “creative”. …”
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A Meta-Analysis of Use of Serious Games in Education over a Decade by Yu Zhonggen

“…Attitudes toward use of serious games in education were explored, as well as the new development of use of serious games in education. Future theoretical and practical exploration might need interdisciplinary cooperation.…”
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Low-hit frequency-hopping communication systems for power Internet of things random access by Shu DU, Mei MA, Bo ZHAO, Qi ZENG, Xing LIU

“…The communication network is an essential component of the data acquisition and information transmission in power Internet of things (IoT).To meet the development requirements of multiple power service in the future, the wireless communication technique with flexible-access and high scalability is one of the development directions for power IoT.Due to the features of large-scale access, random access time, high security and reliability for information transmission of power IoT, a frequency-hopping (FH) technique with low-hit rate for random access was proposed.The construction algorithm of such FH pattern was based upon the combination and shift operation of conventional FH sequences.By the theoretical arithmetic and numerical simulation, the properties of the proposed FH pattern and the error-rate of the FH-based power IoT were evaluated.The analysis reveals that the new class of FH sequences and the system can meet the requirements of large-scale access and highly reliable communication for the power IoT, which has good application prospects.…”
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Continuous noise covert transmission scheme based on QCSK by Ying HUANG, Zehan WAN, Jing LEI, Ke LAI

“…The existing embedded scheme requires far lower transmission power of the covert system than that of the host system, and thus decreasing the reliability of covert transmission.To figure out the above limitations, a continuous noise covert communication scheme based on quadrature chaos shift keying (QCSK) was proposed.The QCSK signal containing covert information and artificial noise were transmitted alternately, and the illegal energy detection was effectively resisted by the continuity of noise which has strong concealment in both time and frequency domains.Furthermore, extremely low power was not required to meet the demand of convert communication in QCSK, whereas allowing the increase of transmit power under the condition that the performance of the host system to improve the performance of covert transmission.Theoretical analysis and simulation results show that the bit error rate (BER) of covert transmission brings two orders of magnitude improvement compared with the existing scheme at BER=1×10^-7 for host system.…”
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Dynamic Characteristic Analysis of Locomotive Traction Gear based on Simpack by Yuyu Sun, Ye Zhu, Tianmin Guan, Linlin Chai

“…The accuracy of the dynamics model of the traction gear pair is verified through the above studies，which provides a theoretical basis for the structural optimization design of the gearbox model and the study of the tooth modification of the traction gear.…”
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