Papers by Keyword: Adaptability

Abstract: The aim of the paper is to explore and establish a base for a possible development of a more holistic and spatially-inclusive method for evaluating energy performance of buildings. This is to be achieved by envisioning building envelopes as arrangements of spatial zones, which could improve the overall energy balance of buildings but at the same time reduce the usage of construction materials and thus consumption of production energy and built-up space. The wall deconstructed in spatial zones, as shown e.g. in Antivilla by Brandlhuber-+, opens a series of questions about the future of existing building codes and certification tools. The potentials are discussed based on the aspects of flexibility, responsiveness, adaptability, replaceability and affordability. The analysis outlines the benefits of the inclusion of those paradigms in the definition of sustainable architecture, and at the same time exposes the lack of possibility to reflect their potential by the established certification criteria. The paper aims at opening the discussion about the limits and traps of quantifying architecture and calls for rethinking of established schemes of sustainability in building sector.

Abstract: The shelter for archaeological areas aims to protect ruins from damages, in order to preserve their historical values, while the excavation work represents a destructive action. The shelter design process for archaeological areas includes dealing with some contradictions, due to the multiplicity of constraints and the complexity of the application contexts. The article aims to state the appropriate use of membranes and temporary structures in these fragile environments through a new concept of textile lightweight solution coming from a decision support matrix. In this applicative example, the elasticity of the proposed textile material – that is a polyurethane-coated knitted textile – and its combination with a bending-active structural element, become a key aspect for reconfiguring the whole system to different sets of problems. The example therefore understands active bending as an approach to generating new structural forms, in which common load bearing behavior is found due to the structures inherently large elasticity and inner stress state.

Abstract: This paper studies the influence of stone dust on adaptability of polycarboxylate superplasticizer and cement by the experiment of paste slump and mortar slump flow. The results indicate that polycarboxylate superplasticizer mixed in mortar increases with stone dust mixed because of large specific surface and water demand of stone dust. There is little effect on fluidity loss when the dosage of stone dust is below 18%, and it will increase significantly with the dosage more than 18%. The adaptability of polycarboxylate superplasticizer and cement will be bad when the content of stone dust in manufactured sand is over 10%. The adaptability of polycarboxylate superplasticizer and cement can be evaluated by the method of mortar slump flow.

Abstract: This paper presents the comparison of positioning control between conventional PID controller and fuzzy PID controller. The controllers are applying into the ball screw system driven by DC motor to observe and analyze the change of the positioning output responses. The DC motor is used because it is easy to setup and control, has precise rotation and most importantly is low cost. As for ball screw mechanism itself, has smooth motion, not easy to wear out and high mechanical efficiency. The problem is arise when the used of conventional PID controller in the ball screw system driven by DC motor shows less adaptability to the changes of system parameter. Therefore, the objective of this project is to design an adaptive fuzzy PID controller to overcome the limitation of conventional PID controller. The performances between the conventional PID controller and fuzzy PID controller will be compared in order to validate the robustness of the fuzzy PID controller. So this project is to compare the robustness of two proposed controllers by comparing the results of ball screw table position when the parameter mass of load is set to vary. The experiment is started with designing the algorithms of fuzzy PID control and conventional PID controller, then the designed algorithm is applied onto the experimental that has been setup. The performances especially the transient response and steady state error between the controllers will be collected and compared by conducting the point to point positioning, tracking and variation of load weight experiments.

Abstract: The traffic of the distribution automation communication network under different size and applications is analyzed based on the communications models. From the network availability and the resource utilization, the distribution automation adaptability is compared with the different communication networks combined with the current main power terminal communication network technologies. The results provide an important theoretical basis for the planning of the distribution automation communication network.

Abstract: In order to learn the reaction and adaptability to water stress of Sedum yvesii, the changes in physiology of leaf water saturation deficit (RWD), plasma membrane relative permeability, chlorophyll content and fluorescence parameters were studied in different moisture gradient of water stress. The results showed that: after 20 days for submergence stress, it had an effect on the normal growth of Sedum yvesii; after 30 days for severe drought stress and 10 days for extreme drought stress, it can severely inhibit the growth of Sedum yvesii, even lead to death, which embodied in the dramatic decline of chlorophyll content, Fv /Fm, Fv'/Fm', ETR and the increase of RWD, relative electrical conductivity. The indicators of slight drought stress and moderate drought stress group have little differences with the control group. They did not cause a significant effect on the growth of Sedum yvesii, indicating that Sedum yvesii has a strong ability to these two kinds of water stress gradient.

Abstract: This article applies to space from the perspective of both the value and application of the Partnering management feasibility of the grouting. With the current Background of construction project, we hold that Partnering management mode in grouting works is feasible.

Abstract: Currently tourism, regeneration and reconstruction occur in the ancient city protection and gets hot, so protection of the ancient city becomes a research focus. This article regards the ancient city as a big ecosystem including old buildings, layout idea and cultural customs after analysis of a large number of cases. As people redefine the residency requirements, the original ecology of the ancient city has been difficult to meet the requirements of people in functionality, safety, convenience and other aspects. How to enhance the adaptability of the ancient city For example, it needs to meet the requirements of modern society development, to adapt to the needs of modern people's lives, to adapt to the modern climate characteristics.

Abstract: This paper deals with the implementation of Autonomous Distributed Manufacturing System (ADiMS) concept in real-time scheduling in order to solve scheduling problems. Basically production scheduling is an important thing and has significant role in manufacturing system. Generally unpredictable conditions such as machine breakdown, absenteeism, or material shortages, in manufacturing system are a problem. These conditions will make the production schedule could not be implemented as planned. However, these conditions are difficult to be avoided and almost always occur in manufacturing systems. A real-time scheduling based on ADiMS concept that provide flexibility, adaptability, and capable could be use to face this problem. In this paper, the problem is limited to real-time scheduling procedures. The result of the case study is every process has been scheduled real-time manually in certain order by the real-time scheduling procedures based on ADiMS. This is showed that ADiMS concept could be implemented in a real-time scheduling and provides flexibility, adaptability, and capable to solve the scheduling problems.

Abstract: In order to clarify the adaptability of sulphoaluminate cement (SAC) and to improve the quality of SAC construction, several common calcareous compounds including calcium chloride, calcium sulphate and calcium hydroxide in designed content were introduced to SAC paste, respectively, following by the investigations of the corresponding fluidity degree and setting time. The experimental results show that calcium chloride in relative high content (no less than 1%) accelerates the cement setting, along with an enlarged degree of fluidity. As a comparison, the involvement of calcium sulphate in SAC paste does simply play a role of setting retarder by prolonging the setting time and enlarging the fluidity degree simultaneously. On the other hand, the presence of calcium hydroxide in SAC paste results in a state of being “neither setting nor flowable”, since the corresponding SAC paste shows a prolonged setting time and a remarkably lowered degree of the initial fluidity degree. All the phenomena can be explained from the viewpoints of hydration mechanism of dehydrated calcium sulphoaluminate.