In China,the development and application goals of Small Modular reactor(SMR) aim at electricity generation area,heat supply area,and seawater desalination area,*** main technical features of the SMR areas follows:inte...
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In China,the development and application goals of Small Modular reactor(SMR) aim at electricity generation area,heat supply area,and seawater desalination area,*** main technical features of the SMR areas follows:integrated pressurized water reactor,reactor coolant pump and reactor pressure vessel connected by short pipe,steam generator sets in reactor pressure vessel,control rod drive mechanism(CRDM),pressure vessel,reactor internals,Once-Through Steam Generator(OTSG),and canned motor pump are all mature *** on the characteristic of the reactor and OTSG,the automatic control design of the SMR is discussed in this paper,and the simulation results are presented to illustrate the control scheme.
A model for one-dimensional non-linear consolidation of a soft foundation with an upper crust with depth-dependent additional stress was presented in this paper. The semi-analytical solution of this model with the bou...
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Being a new-generation C4ISR system simulation method,the construction approach of net-centric simulation(NCS)is developing toward net-centric from the traditional approach of *** is mainly completed by the constructi...
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Being a new-generation C4ISR system simulation method,the construction approach of net-centric simulation(NCS)is developing toward net-centric from the traditional approach of *** is mainly completed by the construction of the simulation task community(STC),the key to which being the dynamic integration of the various services spread in the network in order to form a new STC that meets the requirements of different *** this study,a simulation task community service selection algorithm(STCSSA)is *** main idea of this algorithm is to transform the construction of STC to the searching of optimal multi-objectives services with QoS global *** paper first introduces the QoS model of STC and evaluates the service composition process,then presents the detailed operating process of STCSSA and design of the dynamic inertia weight strategy of the algorithm,and also proposes an optional variation *** tests were performed on STCSSA with other particle swarm optimization *** was validated from the perspective of performance that the proposed algorithm has advantages in improving the rate of convergence and avoiding local optimum,and from the perspective of practical application STCSSA also demonstrated feasibility in the construction of large-scale NCS task community.
In order to investigate the effects of a hard crust on the underlying soft soil, a centrifugal model test of a soft foundation with an upper crust was carried out. The failure mode of the soft foundation and the addit...
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The soft clay is widely distributed in Chinese coastal areas and inland lakes, where there is usually a natural hard crust to a few meters above it. The additional stress distribution inside of the soft layer with an ...
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In order to change the poor adaptability and low efficiency of the message router in enterprise service bus, this paper proposed a natural language processing based semantic-level message routing algorithm and design ...
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Bilateral controllers are widely used vital technology to perform remote operations and telesurgeries. The nature of the bilateral controller enables control objects, which are geographically far from the operation lo...
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ISBN:
(纸本)9781479957637
Bilateral controllers are widely used vital technology to perform remote operations and telesurgeries. The nature of the bilateral controller enables control objects, which are geographically far from the operation location. Therefore, the control data has to travel through public networks. As a result, to maintain the effectiveness and the consistency of applications such as teleoperations and telesurgeries, faster data delivery and data integrity are essential. The Service-oriented Router (SoR) was introduced to maintain the rich information on the Internet and to achieve maximum benefit from networks. In particular, the security, privacy and integrity of bilateral communication are not discoursed in spite of its significance brought by its underlying skill information or personal vital information. An SoR can analyze all packet or network stream transactions on its interfaces and store them in high throughput databases. In this paper, we introduce a hop-by-hop routing protocol which provides hop-by-hop data encryption using functions of the SoR. This infrastructure can provide security, privacy and integrity by using these functions. Furthermore, we present the implementations of proposed system in the ns-3 simulator and the test result shows that in a given scenario, the protocol only takes a processing delay of 46.32 ps for the encryption and decryption processes per a packet.
Magneto-rheological elastomers (MREs) are a new kind of Magneto-rheological materials mainly composed of polymer rubber and micro-sized magnetizable iron particles. In this technical note, a shear-mode semi-active dyn...
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ISBN:
(纸本)9781634392389
Magneto-rheological elastomers (MREs) are a new kind of Magneto-rheological materials mainly composed of polymer rubber and micro-sized magnetizable iron particles. In this technical note, a shear-mode semi-active dynamic vibration absorber (SDVA) based on MREs is proposed and the dynamic design principle of an axial SDVA attached to ship shafting is studied. The material preparation of MREs and their properties under different magnetic fields are introduced. The structure of a single SDVA is designed. Furthermore, the natural frequencies of the single SDVA under different magnetic fields and temperatures are experimentally evaluated. It is found that the natural frequency of SDVA has a decreasing trend with the temperature increasing. However, it has an increasing trend with the excitation current increasing in the same temperature situation. The effect of temperature is more obvious than the excitation current.
This paper explores the design of a collimating lens based on freeform method. With this freeform structure, the light can be propagated as nearly parallel light which allow the light be transmitted to a large distanc...
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This paper explores the design of a collimating lens based on freeform method. With this freeform structure, the light can be propagated as nearly parallel light which allow the light be transmitted to a large distance without substantial loss.
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