2,325 research outputs found
Zero phase robust control of XY table linear servo system
No full textFor direct drive XY table servo system, position control is designed. Considering the error which is caused by the disturbance of the system, friction factor and so on. The control method combing the zero phase error tracking controller (ZPETC) with the disturbance observer (DOB) is adopted. The system tracking error is reduced by adopting ZPETC, and through influences of disturbance to the system is diminished by the disturbance observer. Thus the tracking accuracy and robustness of the system are improved. Simulation results show that this control scheme is effective. It can obviously improve the accuracy of the system. © (2013) Trans Tech Publications, Switzerland
A multi-agent system for e-business processes monitoring in a web-based environment
No full textIn this paper, we present a multi-agent system MAGS for the c-business processes monitoring in a web-based environment. We classify the types of agents in MAGS by their monitoring capabilities. An algorithm is given to explain the mechanism of supervising and controlling the execution of business processes. An abstract model of alerts, which can give warnings of infringement on business policies, is proposed. Access control can also be realized by MAGS, which manifests in delivering different view of the business process to different roles participate in it. Being successfully adopted in a customer service management system, MAGS has been proven flexible and practical.Computer Science, Artificial IntelligenceEngineering, Electrical & ElectronicTelecommunicationsCPCI-S(ISTP)
A Study on Microstructures and Creep Behaviors in the Mg-3Sr-xY Alloys
No full textIn this paper, the author successfully fabricated Mg-3Sr-xY alloys by melting-leaching reduction method using SF6 and N2 as protected gas. The microstructures of the Mg-3Sr-xY alloys were investigated in details，and the results showed that Mg-3Sr-xY alloys are composed of dendrite α-Mg and eutectic α-Mg and Mg17Sr2 and Mg24Y5 particulates, the second phases distribute in the α-Mg dendrites and interdendrites. The fiber microstructures form after thermal extrusion and the dynamic recrystallization occurs. In Mg-3Sr-xY alloy, the tensile strengths, the yield strengths and elongation rates increase firstly, reach the peak values, decrease with the increasing in Y content. Mg-3Sr-xY alloy have the best mechanics properties, including yield strengths and ultimate strengths and elongation rates and creep properties by the addition of 0.6%Y content. The tensile behaviors at elevated temperatures are accord to general laws for the metals at room temperature. The Mg-3Sr-xY alloys with 0.4-1.0% Y are of best creep limit. The dislocation sliding and climbing is the main creep mechanism for Mg-3Sr-0.6Y alloys.</jats:p
XY displacement device
No full textAn XY-displacement device (1) with a four-fold symmetry comprises a reference frame (10); an object mount (20) for holding an object (22) to be displaced; an X-manipulator (100) coupled between the reference frame (10) and the object mount (20), which provides a rigid coupling between the object mount (20) and a piezoelectric X-actuator (140), allows a Y-displacement of the object mount (20) relative to the reference frame (10), and counteracts a Z-displacement of the object mount (20) relative to the reference frame (10); ; and a Y-manipulator (200) coupled between the reference frame (10) and the object mount (20), which provides a rigid coupling between the object mount (20) and a piezoelectric Y-actuator (240), allows an X-displacement of the object mount (20) relative to the reference frame (10), and counteracts a Z-displacement of the object mount (20) relative to the reference frame (10).Applied Science
A case of occult insulinoma localized by pancreatic dynamic enhanced spiral CT
No full textZhao JG performed the CT scanning and supplied the images of CT; Bao ZK drafted the paper; Huang XY and Zheng Q revised the paper
Draft of Marketing Strategy for XY Company in Specialisation of Industrial Cooling
No full textAutorka diplomové práce si jako téma vybrala Návrh marketingové strategie pro společ-nost XY v oboru průmyslového chlazení. V teoretické části na základě rešerše odborné literatury autorka práce si objasní pojmy, které souvisí s tématem diplomové práce. V praktické části provede analýzy vnitřního a vnějšího prostředí firmy XY pomocí kvalitativního výzkumu a vlastního sběru dat. V projektové části se o závěry z těchto analýz bude opírat při zpracování marketingové strategie firmy XY. Vzhledem k tomu, že se jedná o velmi citlivé informace, bude místo názvu firmy používat označení společnost XY.The author of the thesis chose as the topic the draft of Marketing strategy for the XY company in the field of industrial cooling. The author of the work explains terms related to the topic of the thesis in the theoretical part, which is based on technical literature. In the practical part the analysis of internal and external environment of the XY company is acomplished by means of qualitative research and author's own data collection. There is also the conclusion of these analyzes based on the marketing strategy of the XY company in the project part of the work. Taking into consideration using very sensitive information, author uses in the dissertation the XY name for the original company which the work si based on.Ústav marketingových komunikac
Comparative analysis of LLM capabilities and their implementation potential in business workflows
No full textCompany XY is still growing and the processes have changed over the last few years. Therefore, they have never been drawn and analyzed systematically to see if there is any potential for optimization. For this reason, the author was commissioned to do so, and the following research questions have emerged: Are large language models capable of optimizing internal processes? What processes can be optimized? How can they be implemented? And what is the impact of set implementations? The goal of this paper is to get insights into the state of the processes and possible optimizations with a LLM
Marketing Communications of the Firm XY, s.r.o.
No full textThis thesis helps to understand the problems of marketing communication in business-to-business market. The main intention is to show the theoretical background on the example of real company called XY, s. r. o. The author tried to get familiar with the current company marketing communications and applied the theoretical knowledge, especially in the proposals to improve this communication
Modeling belief, capability and promise for cognitive agents - A modal logic approach
No full textFrom the last decade, modeling of cognitive agents have drawn great attention and provide a new paradigm for addressing fundamental questions in cognitive science. In this paper, a logical model for reasoning about cognitive agent's three attitudes Belief, Capability and Promise is proposed. A formalization is provided based on the modal logic to specify and analyze dependencies between the three attitudes. By adopting a set of constraints that describe how the three attitudes are related to each other, we can draw a number of properties of the model. To show the potential applications of the model, we apply the BCP model to a decision-making example in trading agent competition for supply chain management(TAC SCM). The logical model proposed here provides a rigorous semantic basis for modeling cognitive agent and reasoning about multi-agent interactions.Computer Science, Artificial IntelligenceComputer Science, Theory & MethodsSCI(E)CPCI-S(ISTP)
Scanning the critical fluctuations: Application to the phenomenology of the two-dimensional XY model
No full textWe show how applying field conjugated to the order parameter may act as a very precise probe to explore the probability distribution function of the order parameter. Using this “magnetic-field scanning” on large-scale numerical simulations of the critical two-dimensional XY model, we are able to discard the conjectured double-exponential form of the large-magnetization asymptote.DelftChemTechApplied Science
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