Risk Assessment of Building Foundation Pit Construction Based on Fuzzy Hierarchical Comprehensive Evaluation Method by Lei Li, Ruihan Li, Mei Zhi, Siwei Wang, Lirong Cao

“…The safety of foundation pit construction is gaining widespread attention. In order to reduce the risks of foundation pit construction and avoid the safety problems brought by the pits, it is necessary to study the risks of foundation pit construction. …”
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Analysis of Comprehensive Artificial Neural Network Computer Media Aided Construction of Economic Forecasting Model by Tianfeng Li

“…As a complex system engineering, economic forecasting involves many fields and disciplines, and its accuracy largely depends on the selected forecasting method and forecasting model. The construction of the traditional economic prediction model mainly depends on the theories of economic statistics and metrology, which cannot meet the prediction needs of the new era. …”
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Research on key technologies of safety monitoring data sharing for railway engineering construction based on blockchain by Yuhong LIU, Liang YANG, Chunhui PIAO, Zhiguo ZHANG

“…In order to solve the problems that the monitoring data was easy to be tampered with in the process of railway engineering construction safety monitoring, and the authenticity of the data might be questioned during the accountability of accidents, a blockchain-based railway engineering construction safety monitoring data sharing model was proposed.The characteristics of automatic execution of smart contracts ensured the transparency of the process of monitoring data on the chain.In the PBFT algorithm, there was a problem that the Byzantine nodes and the normal nodes were selected as the master node with the same probability, a reputation-based practical Byzantine fault tolerance algorithm was proposed.Streaming data on the chain might cause network congestion, which simplified the consensus protocol and reduced the time complexity from O(n²) to O(n).A comparative experiment was conducted using Hyperledger Caliper to prove that the delay of the improved algorithm is lower than PBFT algorithm, and the throughput is higher than PBFT algorithm.A quantitative analysis of the possibility of attack and the probability of successful attack was carried out, and it was determined that the smart contract provides tamper-proof modification for the monitoring data on the chain.Comparative analysis proves that the proposed blockchain-based railway engineering construction safety monitoring data sharing model is good than other models in terms of consensus efficiency, TPS and block generation speed.…”
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Research on ontology-based construction risk knowledge base development in deep foundation pit excavation by Yuan Chen, Bingge Liang, Hang Hu

“…Facing the massive amount of risk management data for deep foundation pit excavation (DFPE) construction, how to store and utilize these data to prevent the occurrence of risk events is an urgent problem that needs to be solved. …”
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An Innovative Time-Cost-Quality Tradeoff Modeling of Building Construction Project Based on Resource Allocation by Wenfa Hu, Xinhua He

“…A genetic algorithm tool is applied in the model to solve the comprehensive nonlinear time-cost-quality problems. Building of a three-storey house is an example to illustrate the implementation of the model, demonstrate its advantages in optimizing trade-off of construction time, cost, and quality, and help make a winning decision in construction practices. …”
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Design and construction of anair pollution detection system using a laser beam and absorption spectroscopy by Faten Abdel-Wahhab Abdel-Razzaq, Sameer Khudhur Yaseen, Ayad Abdul Razzak Dhaigham

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Research on key technologies of safety monitoring data sharing for railway engineering construction based on blockchain by Yuhong LIU, Liang YANG, Chunhui PIAO, Zhiguo ZHANG

“…In order to solve the problems that the monitoring data was easy to be tampered with in the process of railway engineering construction safety monitoring, and the authenticity of the data might be questioned during the accountability of accidents, a blockchain-based railway engineering construction safety monitoring data sharing model was proposed.The characteristics of automatic execution of smart contracts ensured the transparency of the process of monitoring data on the chain.In the PBFT algorithm, there was a problem that the Byzantine nodes and the normal nodes were selected as the master node with the same probability, a reputation-based practical Byzantine fault tolerance algorithm was proposed.Streaming data on the chain might cause network congestion, which simplified the consensus protocol and reduced the time complexity from O(n²) to O(n).A comparative experiment was conducted using Hyperledger Caliper to prove that the delay of the improved algorithm is lower than PBFT algorithm, and the throughput is higher than PBFT algorithm.A quantitative analysis of the possibility of attack and the probability of successful attack was carried out, and it was determined that the smart contract provides tamper-proof modification for the monitoring data on the chain.Comparative analysis proves that the proposed blockchain-based railway engineering construction safety monitoring data sharing model is good than other models in terms of consensus efficiency, TPS and block generation speed.…”
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Construction of distributed photovoltaic operation and maintenance knowledge base based on time series knowledge map by Jiao Xing, Xiangqian Nie, Qimeng Li, Fan Xiao

“…Abstract By constructing a distributed photovoltaic operation and maintenance knowledge base based on a time series knowledge graph, the problems of lack of specific knowledge base support and low efficiency in formulating operation and maintenance plans have been solved. …”
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La construction des grands ensembles en France : émergence de nouvelles vulnérabilités environnementales by Gwenaëlle Legoullon

“…In spite of these problems, the new construction methods are widely extended and massified through the construction of large housing estates in 1950’s and 1960’s. …”
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Informational technologies in problems of analysis of high speed melt flows in runner pipes by О. I. Chichko, V. F. Sobolev, S. G. Likhouzov

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On a Singularly Perturbed Problem of the Nonlinear Thermal Conductivity in the Case of Balanced Nonlinearity by Marina A. Davydova, Svetlana A. Zakharova

“…To justify the constructed formal asymptotics, we use an asymptotic method of differential inequalities. …”
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Corner Boundary Layer in Nonlinear Elliptic Problems Containing Derivatives of First Order by V. F. Butuzov, I. V. Denisov

“…The complete asymptotic solution expansion uniform in a closed rectangle is constructed for α > 1. If 0 < α < 1, the uniform asymptotic approximation is constructed in zero and first approximations. …”
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Singularly Perturbed Elliptic Dirichlet Problem with a Multiple Root of the Degenerate Equation by V. F. Butuzov, V. A. Beloshapko

“…A singularly perturbed elliptic problem with Dirichlet boundary conditions is considered in the case of multiple roots of the degenerate equation. …”
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Asymptotics of the Solution of the Parabolic Problem with a Stationary Phase and an Additive Free Member by Asan Omuraliev, Ella Abylaeva

“…In this paper we construct the asymptotics of thesolution of the singularly perturbed parabolic problem with the stationary phase and the additivefree term.…”
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Empirical mechanism for the regional brand co-construction: a study of featured agriculture commodities in China by Pei Li, Jianguo Du, Fakhar Shahzad

“…In conclusion, we outlined pathways for the collaborative construction of regional brands for featured agricultural commodities and provided specific countermeasures and suggestions to address the identified problems.…”
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Analysis of Worker Satisfaction with the Foreman's Leadership in Building Construction Works using Importance Performance Analysis by Mohamad Harun, Marjono Marjono, Sugiono, Lisa Dwi Wulandari

“…This study aims to analyze worker satisfaction with the foreman's leadership style in building construction work and determine what attributes need to be maintained and improved to achieve a good level of satisfaction for building construction workers. …”
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Experimental Study on Stability of Long-Span PC Cable-Stayed Bridge during the Construction Periods by Yong Zeng, Yuxiao Wang, Zhenwei Shi, Hongmei Tan, Anbang Gu

“…On this basis, a large-span prestressed concrete (PC) cable-stayed bridge is taken as an example to analyze and compare the two types of stability problems of the bridge during the construction phase and the operation phase. …”
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Multi-server conjunctive keyword searchable encryption scheme based on BDH problem by Yanhua LU, Youliang TIAN, Chen LIU

“…Searchable encryption is a cryptographic primitive that supports users to search for keywords on ciphertext.In view of the low efficiency of traditional single-server searchable encryption schemes,it was based on the advantages of identity management in certificate management.In the multi-serve environment,a bilinear mapping was used to construct an identity-based encryption scheme that supports conjunctive keyword search.In this scheme,the storage and query of the encrypted data were allocated to different servers,and the retrieval efficiency of the user storage and keyword was improved by cooperation.Re-use the encryption and search ability of the connection keywords by using the identity of multi-server and user.At the same time,combine with the searchable encryption method of conjunctive keyword,a new security model was constructed based on bilinear pairing.And under the bilinear Diffie-Hellman problem,the scheme satisfies the ciphertext indistinguishability under selected message attack.…”
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ON PROBLEMS OF DEVELOPMENT OF OPTIMIZATION ALGORITHMS OF APPLICATION OF ALLOWANCES AND DECLINES IN THE SYSTEMS OF AUTOMATED DESIGNING by A. N. Chichko, T. V. Matjushinets, V. F. Sobolev

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What Constitutes "Complement" in Systemic Functional Grammar: Its Theoretical Problems and Implications by Joko Kusmanto

“…Despite the wide-range application of Systemic Functional Grammar (SFG) for various kinds of text analyses, SFG theory poses significant syntactic problems which have not been touched much. These syntactic problems are basically the result of its fundamental theoretical construct, i.e. the semantic perspective in approaching grammar. …”
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