Analysis on automatic generation of BEPS model from BIM model

The interlinking of enriched BIM data to Building Energy Performance Simulation (BEPS) models facilitates the data flow throughout the building life cycle. This seamless data transfer from BIM to BEPS models increases design efficiency. To investigate the interoperability between these models, this paper analyses different data transfer methodologies along with input data requirements for the simulation process. Based on the analysed knowledge, a methodology is adopted and demonstrated to identify the quality of the data transfer process. Furthermore, discussions are provided on identified efficiency gaps and future work.:Abstract Introduction and background Methodology Methodology demonstration Creation and export of BIM data Verification of OpenBIM meta-data BEPS model generation and validation Import statics Model Geometry and Orientation Construction details Thermal Profile Results and discussion Summary and future work Reference

Enhancement of BIM Data Representation in Product-Process Modelling for Building Renovation

Building Information Modelling (BIM) has the potential to become a technology which will help to use a holistic information repository to generate and represent relevant information in different building life-cycle stages (BLCS) to dedicated groups of stakeholders. However, the scope of model components of BIM data (e.g., IFC meta-data) is limited and some parts of it are not modelled in a manner that supports the diversity of engineering use cases. This paper aims to address this deficit by identifying the capability to formulate inference rules as one of the major benefits in the ontology-based information modelling approach. However, before one can formulate inferencing rules a detailed and in-depth understanding is required on how stakeholder information needs are defined in different BLCS and on how available, open-BIM meta-data models support these information requirements. Therefore, the research progressed initially on existing definitions for Level of Detail (LOD) and selected process-modelling standards (BLCS). In the subsequent part, different renovation Activities and the Stakeholder involvements are analysed. Use cases are defined and used as a grouping mechanism for selected scenarios. Based on these grouping mechanisms, a methodology of how components of a BIMmodel could be classified to support automated inferencing in the future. The outcome of this research is an established 6-dimensional intercommunication framework (LOD, BLS, Scenarios, Stakeholders, Use Cases, BIM model data) based on the Linked Building Data approach and focusing on renovation processes optimization. Based on the framework, a renovation Product-Process Modelling ontology is developed to connect existing components and to support new interoperable applications.:Abstract 1 Introduction and Backgroung 2 Renovation Framework 2.1 Level of Detail (LOD) 2.2 Building Life-Cycle Stage 2.3 Activity and Stakeholder 2.4 BIM Object (Product Information) 2.5 Use Cases 3 Product-Process Ontology 3.1 Activity – BIM Data – LOD 3.2 BLCS – Activity – Stakeholder 4 Validation 5 Conclusion 6 Future Work Reference

A methodology to determine and classify data sharing requirements between OpenBIM models and energy simulation models

Energy analysis at different stages of a building’s life-cycle allows designers and engineers to make proper design decisions, which will enhance the efficiency and energy saving measures. However, energy analysis of a building using traditional methods at every stage of the project is time-consuming and more labor intensive. Thus, energy simulations of buildings are rarely introduced in all design stages of the project. This study focuses on data transfer process from BIM model (Revit) to energy simulation model (IES ‹VE›) using OpenBIM meta-data model - Industry Foundation Classes (IFC) as an exchangeable file format. This data sharing process simplifies the complexity in energy modeling and allows to investigate different design alternatives in each phase of the building’s life-cycle. To investigate the efficiency and completeness of this data transfer process, a demonstration of data sharing is carried. By evaluating the results from the demonstration, efficiency gaps are identified in the data transferred process. A detailed investigation on the cause of efficiency gaps in data sharing is carried out and incorporated in this paper.:Abstract 1. Introduction 2. Building Energy Simulation 2.1. Categorization of Energy Simulation Models 3. Data Sharing Requirements - IFC 4. Data Sharing Demonstration 4.1. BIM model 4.2. Data investigation with model viewer 4.3. Data quality verification in energy simulation model 4.3.1. Evaluation of Results 5. Conclusion Reference

A Semantic Data Model to Represent Building Material Data in AEC Collaborative Workflows

The specification of building material is required in multiple phases of engineering and construction projects towards holistic BIM implementations. Building material information plays a vital role in design decisions by enabling different simulation processes, such as energy, acoustic, lighting, etc. Utilization and sharing of building material information between stakeholders are some of the major influencing factors on the practical implementation of the BIM process. Different meta-data schemas (e.g. IFC) are usually available to represent and share material information amongst partners involved in a construction project. However, these schemas have their own constraints to enable efficient data sharing amongst stakeholders. This paper explains these constraints and proposes a methodological approach for the representation of material data using semantic web concepts aiming to support the sharing of BIM data and interoperability enhancements in collaboration workflows. As a result, the DICBM (https://w3id.org/digitalconstruction/BuildingMaterials) ontology was developed which improves the management of building material information in the BIM-based collaboration process.:Abstract 1. Introduction and Background 1.1 Building Information Modeling for collaboration 1.2 Information management in AEC using semantic web technologies 2 DICBM: Digital Construction Building Material Ontology 2.1 Building Material Data in IFC 2.2 Overview of the building material ontology 2.3 Integration of external ontology concepts and roles 2.4 Material Definition 2.5 Material, Material Type, and Material Property 2.6 Data Properties in DICBM 3 Conclusions Acknowledgments Reference

Variability in Hip Characters in Rosa Species

The reddish 'fruit' of rose is commonly known as its hip. Rose hips are formed when the tip of a rose stem swells up after a flower has faded. Species roses, shrub roses, ramblers and other roses that are "close to nature" (R. gallica, R. rugosa) are the most likely to have noticeable hips. Twenty three rose species were evaluated for hip characters. Rose hips were very variable among the species. Average hip length and diameter varies between 0.5 to 2.8 cm and 0.1 to 2.7 cm, respectively. Hip shape viz., sub-globose, urn-shaped, ellipsoid and spindle-shaped were observed among the species. The range for number of hips was found to be 5 to 45 per cluster. Rosa rugosa recorded larger hip size. Majority of the species showed orange and deep red hip color. R. moyesii (blue-green foliage and bright to orange hips), R. glauca (bright scarlet hips), R. pimpinellifolia (tiny, red-black hips) with attractive hips having ornamental value can be utilized in landscaping and for garden purposes

REVIEW ON COMPLEMENTARY AND ALTERNATIVE MEDICINE (CAM) IN ORAL HEALTH

Background: Complementary and Alternative Medicine (CAM) is a cluster of heterogeneous medical and health care systems, practices and products that can be used along with conventional medicine. This review article is about CAM system that is being used in oral health, challenges of such uses and the need for global regulations while using CAM products as medicines. Discussion: These systems are integral part of culture. Ayurvedic therapies are used for alleviating various oral conditions. Herbal mouth rinses and dentifrices are used for plaque control which is the basic process in oral care. Though deficiency exists regarding reports of controlled studies of Homeopathic medicines in pain conditions, Homeopathy is effective in the treatment of idiopathic trigeminal neuralgia. Last decade had witnessed an increasing interest in medicinal plants thereby promoting them as alternatives to standard conventional medicines. These therapeutics are gaining importance in a global scale. Limited access to conventional oral care, lower costs and general belief of minimal toxicity enhances the use of Ayurveda, Herbal and Homeopathic medicines and therapies in oral diseases. Budgetary allocations for this traditional system care of different countries, designing research programs to focus on traditional medicines and implementation of laws for propagation of CAM systems reflects the global inclination towards this system of healthcare. Conclusion: Considering the broadened scope of CAM therapeutics in dental healthcare, it is recommended that a dental professional be consulted prior to using these products in an attempt to reduce the probability of side effects or drug interactions

Experimental evaluation of active and passive means of alleviating rotor impulsive noise in descent flight

A controlled wind tunnel test program was conducted on a model 2.14 m (7 ft) diameter teetering rotor to determine the effectiveness of blade tips such as the Ogee tip and the TAMI (Tip Air Mass Injection) tip in reducing the impulsive noise due to blade-vortex interaction in descent flight. In addition, a full rectangular tip which has the same span as the Ogee tip and an effective rectangular tip which has the same lifting area as the Ogee tip were also considered. The tests were conducted at two advance ratios (0.125 and 0.14) with various descent rates ranging from steady level flight to about 6 m/sec (20 ft/sec). A comparison of the performance of different rotors showed that for the same tip Mach number and thrust, the Ogee tip rotor absorbed more power than the full rectangular tip rotor, while the TAMI tip rotor absorbed more power than the effective tip rotor

Survival, Growth and Production of Penaeus monodon in Modified- Extensive and Semi Intensive Culture Systems of Andhra Pradesh, India

An analysis was made on the stocking density, survival, growth and production of Penaeus monodon in semi intensive (SI) and modified extensive (ME) shrimp culture ponds located in East Godavari district of Coastal Andhra Pradesh, India. Survival of shrimp in the ME systems with low stocking densities is higher (56 - 88%) than in the SI systems (12.3 – 52%) with higher stocking densities. Growth of shrimp is dependent not only on the stocking density but also on the management practices. Although the percent survival is more in ME system the growth is much faster in SI system owing to better management practices. Weight gain of shrimp was more rapid in the SI system than in the ME system initially up to 90 days of culture (DOC) but the trend was reverse in the later age of culture period. The optimum stocking density for achieving maximum production in the area is suggested as 10-15 individuals / m2 in SI ponds and 3-5 individuals / m2 in ME ponds