2-D honeycomb MI wave communication system by Feng LIU, Zhi-jun ZHANG, Xiao-tong ZHANG, Jin-wu XU

“…To realize the high reliable communication and the wireless power transmission in the wireless underground sensor network,a new type of 2D honeycomb magneto-inductivenetwork was put forward at VLF band.The system model was established,and bandwidth,group velocity and beam forming technologies were researched based on the cur-rent dispersion equations.Simulation with Runge-Kutta method was carried out to verify the efficiency of the network.The result show that the omnidirectional propagation can be realized in the proposed honeycomb network with more bal-anced bandwidth and group velocity in every direction compared with the square lattice structure.Directional communi-cation can also be realized based on the cooperative multi-antenna technology.The proposed honeycomb mag-neto-inductive network is very suitable to build wireless sensor networks with high connectivity and power efficiency in the underground environments.…”
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Exploiting interests and behavior prediction for dynamic resource discovery in mobile social networking by Zhi-yuan LI, Ru-long CHEN, Ru-chuan WANG

“…According to the prediction results of the Markov model, the dynamic ma en-ances of the virtual interest communities were realized. …”
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Trellis orthogonal reconstruction algorithm based on orthogonal space-time block code for wireless communication system in high-speed railway by Wan-tuan LUO, Xu-ming FANG, Meng CHENG

“…When the train moves at a fantastic speed, the fast time-varying channel destroys the orthogonality of OSTBC reducing the diversity gain which would severely degrade the bit error rate (BER) perform-ance. The trellis orthogonal reconstruction algorithm (TORA), in which the intra-code orthogonality is reconstructed through givens transformation and the transmit beamforming direction can be changed as well is proposed. …”
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Synchronous collaborative application of nuclear power engineering design platform by Zhihua ZENG, Delong YI, Yan LI

“…At present,the nuclear power business shows the development trend of multi-route,multi-base develop-ment trend.Coupled with the huge workload of nuclear power engineering design and the fine division of labor cha-racteristics,the relevant professional in different places appears more and more cross-design in the nuclear power en-gineering design,resulting in the frequency of funding becoming more and more dense between the various profes-sional.How to shorten the synchronization time of engineering design data between different places,and even achieve real-time synchronization of engineering design data is worth to study in the field of collaborative design of nuclear power projects.From the point of view of system verification,the existing popular virtualization technology was used to carry out an in-depth exploration and verification on the synergetic synergy of nuclear power engineering design,and a set of auxiliary access platform was added on the basis of the original design platform structure to real-ize remote user access and collaborative design of nuclear power projects.The research results have guiding signific-ance for the follow-up design and production platform upgrade and optimization.…”
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Training of professionally-oriented reading on the basis of russian state standards for higher vocational education by Svetlana V. Krutskaya, Lilia R. Nurtdinova

“…From the authors’ point of view these types of exercises reflect the content of language education in the system of higher education in accord- ance with Russian State Standards. At the end of the paper the authors conclude that the exercises described will not only train professionally-oriented reading, but also serve as a basis for further self-development of an existing level of foreign language and its application in real-life communication (professional as well as living.…”
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Jointing sparse recovery estimation algorithm of underwater acoustic channels with long time delay spread by Yue-hai ZHOU, Xiu-ling CAO, Dong-sheng CHEN, Feng TONG

“…A method was proposed which exploiting the joint correlation of sparse multipath structure between adjacent data blocks to deal with the estimation of long time delay channels under the framework of distributed compressed sensing (DCS).Thus the large time delay underwater acoustic channels can be jointly reconstructed by the simultaneous orthogonal matching t (SOMP)algorithm to fa-cilitate the system overhead reduction and estimation ance improvement. Simulation as well as the sea trial re-sults indicate the effectiveness of the proposed method.…”
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Non-inertial opposition-based particle swarm optimization with adaptive elite mutation by Lan-lan KANG, Wen-yong DONG, Wan-juan SONG, Kang-shun LI

“…Non-inertia1 opposition-based partic1e swarm optimization with adaptive e1ite mutation（NOPSO）was proposed to overcome the drawbacks，such as，s1ow convergence speed，fa11ing into 1oca1 optimization，of opposition-based partic1e swarm optimization.In addition to increasing the diversity of popu1ation，two mechanisms were introduced to ba1ance the contradiction between exp1oration and exp1oitation during its iterations process.The first one was non-inertia1 ve1ocity（NIV）equation，which aimed to acce1erate the process of convergence of the a1gorithm via better access to and use of environmenta1 information.The second one was adaptive e1ite mutation strategy（AEM），which aimed to avoid trap into 1oca1 optimum.Experimenta1 resu1ts show NOPSO a1gorithm has stronger competitive abi1ity compared with opposition-based partic1e swarm optimizations and its varieties in both ca1cu1ation accuracy and computation cost.…”
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The critical influence of some “tiny” geometrical details on the stress field in a Brazilian Disc with a central notch of finite width and length by Stavros K Kourkoulis, Christos Markides, Ermioni Pasiou, Andronikos Loukidis, Dimos Triantis

“…It is con­cluded that the role of the width of the notch is of critical im­port­ance. Both the ana­lytic and the numerical studies indicate definitely that ignoring the ac­curate geo­metric shape of the notch leads to erroneous results concerning the actual stress field around the crown of the notch. …”
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Microbial Biofortification of Grain Crops: Current State and Prospects by Daria E. Kolpakova, Yuliya R. Serazetdinova, Natalya V. Fotina, Alexandra V. Zaushintsena, Lyudmila K. Asyakina, Anna I. Loseva

“…The authors reviewed international studies in the field of microbial biofortification in order to assess the microbial potential to enh ance the essential element content in grain crops. …”
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Social leadership and authority in the field of national and military security: problems of formation in the digital world by M. M. Kibakin

“…Based on the author’s sociological research, the paper analyses the self-assessment of young people of their leadership qualities, authority and social influence on other people in accord- ance with their status in social networks. The study describes the social types based on the model of leadership and integration into the Russian civilizational space, the values of the Russian society. …”
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FINANCIAL STABILITY OF THE INSURANCE COMPANY AND KEY CONDITIONS FOR ITS PROVIDING by Olha Boronina

“…The insurer’s financial reliability usually means the insurer’s ability to fulfill insur­ance obli­gations under insurance and reinsurance contracts in the event of adverse factors. …”
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An Optimized Hyperparameter Tuning for Improved Hate Speech Detection with Multilayer Perceptron by Muhamad Ridwan, Ema Utami

“…The findings underscore the importance of optimized hyperparameters in developing robust hate speech classification systems. The superior perform ance of Optuna highlights its potential for broader application in other machine learning tasks requiring hyperparameter optimization. …”
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Self-reported health profiles of trauma victims with and without psychiatric histories by Alan R. King, Sara K. Kuhn, Stephanie Brezinski, Michael Jowkar, Kourtney Smith

“…Background This study examined associations between self-reported trauma exposure and physical health status after control of vari-ance associated with psychiatric disturbance. Physical and mental health diagnoses were examined among participants with and without histories of trauma and post-traumatic stress disorder (PTSD). …”
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Pengembangan Buku Pedoman Manajemen Life Skill untuk Peserta Didik di SLB Negeri 1 Lima Kaum by Ance Oktavia Wardila

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Properties of Nanocrystals-formulated Aluminosilicate Bricks by Francesca Conciauro, Emanuela Filippo, Claudia Carlucci, Viviana Vergaro, Francesca Baldassarre, Rosaria D’Amato, Gaetano Terranova, Caterina Lorusso, Paolo Maria Congedo, Barbara Federica Scremin, Giuseppe Ciccarella

“…In general, they also showed improvements in mechanical compression resist‐ ance for all of the samples at 2 wt. %. The best heat insula‐ tion was obtained with the addition of nano-aluminium hydroxide at 2 wt. %, while the highest mechanical compres‐ sion breaking resistance was found with nano-CaCO3 at 2 wt. %. …”
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BIOACTIVE SUBSTANCES OF BLACK CURRANT BERRIES IN THE CONDITIONS OF NORTHWESTERN RUSSIA by О. A. Tikhonova, Т. V. Shelenga

“…Black currant occupies one of the leading po­sitions among berry plants in terms of the content of nutri­ents and bioactive substances that are necessary for a bal­anced human diet. The modern standards for black currant varieties include mandatory requirements to the quality of fruits, including their biochemical composition. …”
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SOME ASPECTS OF THE ANALYSIS OF CYCLICAL FLUCTUATIONS IN THE ECONOMY (IN THE CASE OF THE CORONAVIRUS PANDEMIC CRISIS) by Kamoliddin Jabbarov

“…While measures like quantitative easing and fiscal stimuli have provided temporary relief, they have also led to significant imbalances, such as the ballooning of public debt and the overreli­ance on monetary policy tools. The study highlights the differential impact of the crisis on various sectors, with tourism, transportation, and energy investments being particularly hard-hit, while digital technologies and remote working solutions have seen accelerated growth. …”
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