The identification problem of multivariable controlled autoregressive systems with measurement noise in the form moving average process is considered this paper. key to filter input–output data using filtering technique and decompose model into two subidentification models. By negative gradient search, an adaptive filtering‐based iterative (F‐GI) algorithm F‐GI finite are proposed for identifying parameters systems. In numerical example, we illustrate effectiveness methods.

With the rapid growth of large graphs, we cannot assume that graphs can still be fully loaded into memory, thus disk-based graph operation is inevitable. In this paper, take shortest path discovery as an example to investigate technique issues when leveraging existing infrastructure relational database (RDB) in data management. Based on observation a variety search queries implemented by iterative operations including selecting frontier nodes from visited nodes, making expansion selected and...

With the wide applications of large scale graph data such as social networks, problem finding top-k shortest paths attracts increasing attention. This paper focuses on discovery simple (paths without loops). The well known algorithm for this is due to Yen, and provided worstcase bound O(kn(m + nlogn)), which comes from O(n) times single-source path each k paths, remains unbeaten 30 years, where n number nodes m edges. In paper, we observe that there are shared sub-paths among O(kn) paths....

Motivated by the needs such as group relationship analysis, this paper introduces a new operation on graphs, named top-k path join, which discovers simple shortest paths between two given node sets. Rather than discovering each pair, proposes holistic join method answers finding constrained nodes, and then devises an efficient to handle latter problem. Specifically, we transform graph encoding precomputed target node, use transformed in candidate searching. We show that searching not only...

The article is inspired by the exterior shape of electric fan, which analyzed extensive developing design space it. And it also combined problem existing fan in art function and using function. A multi-function simulated Beijing Olympic auspicious cloud torch has been designed. It discusses purpose, requirements designing process, form design, mainly describe operating principle a variety multi -function including basic air moistening function, automatic temperature measurement ventilation...

In recent years because of the increasing number and types scientific payloads on a probe, constraints between payload probe among have become increasingly complex. The technology constraint processing has gradually focus research in deep space planning. this paper, we propose constrained-programmed planner called DSPlan for planning problems based table constraints. We first technique automatically converting domain definition language model used into form Following common practice coding...

Since the modeling design of table lamp is ignored for a long time, this paper analyzes significance lamp. In view existing problems traditional lamp, states function color shape and texture effect among them mainly expounds its using artistic function, emphasizes harmonization, indicates that it should be different according to target people. Furthermore, Era characteristics are analyzed. At last, corresponding summary made.

This paper presents a parallel TBB-CUDA implementation for the acceleration of single-Gaussian distribution model, which is effective background removal in video-based fire detection system. In this framework, TBB mainly deals with initializing work estimated Gaussian model running on CPU, and CUDA performs adaption GPU. can exploit combined computation power TBB-CUDA, be applied to real-time environment. Over 220 video sequences are utilized experiments. The experimental results illustrate...

This paper presents a method based improved particle swarm optimization optimizing PI control parameters. When the load changes, parallel active power filter, in traditional strategies, can not well DC voltage fluctuations leading deterioration of its dynamic performance. proposes algorithm by increasing symbolic function inertia weight parameter algorithm, and changing position random number speed update equation. The avoid "premature" or fall into local optimal solution, so it could get...

Through the analysis of present development condition our numerical control machine tool, author states her own personal idea about design new age tool. And then makes an exploration on man-machine factors, shape and color At last, emphasis that modeling tool should be given has been pointed out, a related work also energetically carried out.

Over the past eight years subject of 3D surface metrology has developed from something a novelty to position where it now become crucial tool in characterisation engineering surfaces across broad range applications. It is widely accepted that nature topography significant influence on efficiency and functional performance surface. The functions have been identified various studies include wear, friction, lubrication, corrosion, fatigue, coating, paintability, etc. also increasingly being...

Fiber-reinforced resin-based plastics are widely used in structural composites for aerospace and automotive applications, they often face extreme load conditions actual working environments. It is challenging to monitor the damage of structure during vibration process. This study was aimed at using buckypaper (BP) sensors health status composite structures under ambient vibrations. First, feasibility flexible printed circuit instead wire verified by tensile experiment. Then monitoring...

In view of that manufacturing internship is indispensable practical links in the mechanical industrial design, author analyzes current situation design and existing problem system, discussing necessity research practice on for design. Among them establishing factory campus, which lets student enter learn various skills after learning certain basic courses, or setting up outside cooperative basement, particularly important. And then concrete methods implementation steps are put forward. On...

Coiling temperature, finish rolling temperature and running speed of ZSAC1 strip during U-type cooling number valves which had been turned on were analyzed in order to find out the reason low coiling at tail process. Results research showed that main factors affecting accuracy temperature. decreased with increase strip. fluctuation would occur same part when increased or decreased. Holding stably can improve downstream cooling.

Based on the survey of existing brush cutter and analysis known conditions, this paper mainly studied design mechanism principle cutter, carried calculation calibration spiral bevel gear cutting machine parts, so as to ensure that is safe, efficient, simple, comfortable environmentally friendly. Product after research reliable performance, convenient operation, low noise zero smoke higher safety factor, making it get more extensive application in industry.

With the increasing demand for low-cost and high-performance hot-rolled strips, ultra-fast cooling technology is being rapidly developed. The process temperature control precision an important factor that determines mechanical properties. Even though controlled, longitudinal properties contribute to non-uniformity in thick strips. To reduce deviation, unloaded coil radial direction distribution under five processes with initial temperatures of 300 °C, 400 500 °C 600 were systematically...

Sled motorcycle model design is a comprehensive gathering mechanical engineering, ergonomics, aerodynamics and color design. This paper analyzed the in detail from perspectives of design, researched significance products using functions spiritual aesthetics.

This paper presents an action guided constraint satisfaction technique for planning problem. Different from the standard algorithms which are almost domain independence and cannot reflect characteristics of progress, we discuss how rules in act problems. Based on conclusion, directed is proposed to guide variable selected procedure Through theoretical analysis, this prior order magnitude select over ordinary heuristic can be used constraint-programmed problem generally. With simulation...

The automobile crane is a which arranged on common chassis or special chassis, the driving cab and lifting control room. advantages of this good mobility, transfer quickly. weight body truck very important part, but also key part whole balance, its main function to balance gravity center lifting, make more stable, safety. current general are fixed weight, directly motionless in car tail, installation transportation unloading work. This design mainly counterweight designed into movable...

The design of beach bike has a close relationship with variety subjects including mechanical engineering, ergonomics and art theories. This paper presents the overall partial operating process as well. Staggered description virtual is also analyzed to make subject clear.

Virtual shaping design of single snowmobile is in close relation to a variety types subjects, comprising man-machine engineering, art shaping, engineering technology and so on. This paper mainly discussed the chief structure design, overall graphics local snowmobile. Simultaneously content virtual manufacturing has also been analyzed here.

In view of well- designed treadmill is advantageous to healthy, the author analyzes design problem existing which exists in using function, art function and material technique others, discusses shape design, color components design. Among them t mainly elaborate bottom frame handrail other designs. Then possibility analyzed. On this foundation, practice new type done.