Pipeline Integrity Improvement Method – Case Study for Petani Pematang Bekasap Transfer Line

2018 ◽  
Author(s):  
Yudianto Utomo,
Keyword(s):  
Transfer Line ◽  
Improvement Method

Exploration on Traditional Courtyard Micro-Climate Characteristics and Improvement Method - Case Study of No. 6 Courtyard of Chang'anxue Alley in Xi'an Sanxuejie Historic District

2013 ◽  
Vol 357-360 ◽  
pp. 1918-1927 ◽  
Author(s):  
Ruo Bing Fan ◽  
Xiao Ming Li
Keyword(s):  
Sustainable Development ◽  
Thermal Environment ◽  
Urban Expansion ◽  
Historic District ◽  
Climate Conditions ◽  
Historic Districts ◽  
Improvement Method ◽  
New Perspective

Xian Sanxuejie district is a typical historic district of the city. Presently this type of traditional districts is surrounded by many modern buildings due to the rapid urban expansion. The historic districts are facing problems of poor courtyard micro-climate conditions and low living level, which has become the bottleneck of historic districts sustainable development. This paper studies thermal environment, luminous environment, solar environment and wind environment from a new perspective using Ecotect building environment analyzing software. The author explores micro-climate improving method suitable for traditional courtyard in order to promote micro-climate quality of historic district and to improve the comfort of local residences. The purpose is to achieve sustainable development of historic districts.

Consolidation in Soft Soil – Case Study on Prefabricated Vertical Drains (PVDs)

2021 ◽  
Vol 15 (1) ◽  
pp. 310-319
Author(s):  
Nadarasa Kuganeswaran ◽  
Afikah Rahim ◽  
Nazri Ali
Keyword(s):  
Ground Improvement ◽  
Soft Soil ◽  
3D Analysis ◽  
Prefabricated Vertical Drains ◽  
Vertical Drains ◽  
Vertical Drain ◽  
Prefabricated Vertical Drain ◽  
Improvement Method ◽  
Plaxis 3D

Background: Constructing on soft ground is one of the challenges of geotechnical engineering. The unpredictable behaviour and characteristics of soft soil can cause much damage resulting in high maintenance costs in the post-construction phase. Objective: The purpose of this study is to analyse the consolidation process and ground improvement method using surcharge and a prefabricated vertical drain by measuring the accuracy of the prediction settlement value with the actual site settlement results. Methods: An effective ground improvement method is the application of a surcharge and prefabricated vertical drains (PVDs). Various methods can be used to predict the settlement effectively, one such method being PLAXIS 3D simulation. A case study on ground improvement works was selected for this research, where PVDs were constructed and implemented at the site. A few undisturbed samples were collected from the site to generate the parameters based on the lab test conducted in the simulation process. This parameter was carefully studied and representing the principal input for the 3D model, which is generated and represents the actual ground improvement method for the selected case study. The analysis was performed using a borehole and soft soil model to generate the diagram. The prediction settlement value was generated from the PLAXIS 3D analysis as the baseline comparing to the actual results. The factors that influence the settlement value, such as the length and spacing of the prefabricated vertical drain, construction method, and soil characteristics, are also discussed. Results: A predicted settlement of 2553 mm was generated by the simulation, while the actual settlement outcome at the site was 2096 mm, a difference of 457 mm, and a prediction accuracy of 82.1%. Conclusion: The study found that the combination of surcharge and prefabricated vertical drain in the ground improvement worked well. Also, discussed were the factors that influenced the accuracy of the prediction and the site results.

ISSUES AND COUNTERPLAN OF EVACATION CENTER AT NIGHT - CASE STUDY OF NORTHEN GYMNASIUM IN SUZAKA CITY AFFECTED BY TYPHOON HAGIBIS IN 2019 -

2021 ◽  
Author(s):  
H. Yamaguchi ◽  
Y. Akizuki ◽  
Y. Shimojima ◽  
N. Wakabayashi ◽  
Y. Oe ◽  
...  
Keyword(s):  
Thermal Environment ◽  
Brightness Distribution ◽  
Living Environment ◽  
Actual Condition ◽  
Health Safety ◽  
Improvement Method ◽  
Lighting Environment ◽  
Indirect Lighting

The living environment at the evacuation center is very important for ensuring the health, safety and security of the evacuees, but at present, preparations for providing a satisfactory living environment are not enough. In order to improve that, we have to consider various conditions, such as "ensure the lighting environment for the safe and secure and sleep," "toilet ensure," "ensure the thermal environment". In this study, we investigated the actual condition of glare in the nighttime lighting environment of evacuation center and examined the improvement method. Regarding the glare improvement method, the effectiveness of indirect lighting was shown based on the results of brightness distribution simulation with Radiance.

Availability Improvement Method for Repairable Systems Using Modified Ant Colony Optimisation

2017 ◽  
Vol 16 (02) ◽  
pp. 1750011 ◽  
Author(s):  
Ali Mahani ◽  
Ebrahim Farahmand ◽  
Saiede Sheikhpour ◽  
Nooshin Taheri
Keyword(s):  
Power Systems ◽  
Heuristic Algorithms ◽  
Ant Colony ◽  
Parallel Structure ◽  
Repairable Systems ◽  
Efficient Performance ◽  
Improvement Method ◽  
Optimum Model ◽  
The Cost

Reliability is deemed as an important issue in many broad applications, e.g., telecommunication systems, electric power systems, computation and parallel processing systems. In order to reach efficient performance and reliable/available design, we need to optimize the cost and reliability/availability of the proposed designs. The main contribution of this paper is to address the optimum model for repairable component with series-parallel structure using redundancy allocation problem (RAP). In this regard, two novel modified Ant Colony Optimization (ACO), are defined. In order to improve availability, ACOs employ visibility and pheromone update to optimize the RAP. The proposed methodology includes single objective to maximize the availability of case study system with two constraints-weight and cost of components. Hence, three meta-heuristic algorithms, i.e., ACO, Genetic algorithm (GA) and Particle Swarm Optimization (PSO) are applied to find the optimum structure. Finally, the simulation results of all the proposed meta-heuristic algorithms are compared. The comparison reveals that the modified ACO (MACO) provides the maximum availability among all the other meta-heuristic algorithms.

The Method for the Accuracy Improvement of STL Offset Model Based on Vertex Offset

2011 ◽  
Vol 308-310 ◽  
pp. 1600-1603
Author(s):  
Hu Zhu ◽  
Nan Li ◽  
Zhi Jun Liu
Keyword(s):  
Center Of Gravity ◽  
Accuracy Improvement ◽  
Model Based ◽  
Surface Subdivision ◽  
Improvement Method ◽  
Subdivision Algorithm ◽  
Normal Vectors

On the basis of the analysis for the reason that causes the errors of the vertex offset, the accuracy improvement method for the STL offset model which was generated by the vertex offset algorithm was proposed by using the surface subdivision algorithm based on the center of gravity on triangular facets. The offset point of the center of gravity was generated by offset the center of gravity along the normal vectors of the triangular facets on which the center of gravity is located, and the new triangular facets are formed by connecting the offset points of the center of gravity and the offset vertexes of the triangular facets so that the more accurate offset model to be built. The case study shows that the proposed algorithm has higher accuracy than the existing vertex offset algorithm.

Experience

2021 ◽  
Vol 13 (1) ◽  
pp. 1-13
Author(s):  
Rogério Luís C. Costa ◽  
Enrico Miranda ◽  
Paulo Dias ◽  
José Moreira
Keyword(s):  
Video Tracking ◽  
Burned Area ◽  
Temporal Data ◽  
Real World Data ◽  
Inaccurate Data ◽  
Improvement Method ◽  
Spatio Temporal ◽  
And Behavior

Spatio-temporal data can be used to study and simulate the movement and behavior of objects and natural phenomena. However, the use of real-world data raises several challenges related to its acquisition, representation, and quality. This article presents a data cleaning process, based on consistency rules and checks, that uses geometric operations to detect and remove outliers or inaccurate data in a spatio-temporal series. The proposal consists of selecting key frames and applying the process iteratively until the data have the desired quality. The case study consists of extracting and cleaning spatio-temporal data from a video tracking the propagation of a controlled fire captured using drones. The source data was generated using segmentation techniques to obtain the regions representing the burned area across time. The main issues concern noisy data (e.g., the height of flames is highly variable) and occlusion due to smoke. The results show that the quality assessment and improvement method proposed in this work can identify and remove inconsistencies from a dataset of more than 22,500 polygons in just a few iterations. The quality of the corrected dataset is verified using metrics and graph analysis.

scholarly journals Peran Pembiayaan Produktif BMT Mandiri Mulia Terhadap Peningkatan Kesejahteraan Anggota Perspektif Maqasih Syariah

2015 ◽  
Vol 2 (10) ◽  
pp. 797
Author(s):  
Muhammad Hidayatulloh ◽  
Meri Indri Hapsari
Keyword(s):  
Case Study Research ◽  
Basic Needs ◽  
Qualitative Approach ◽  
Study Research ◽  
Improvement Method ◽  
Descriptive Qualitative

The purpose of this study is to understand and analyze the role of BMT Mandiri Sejahtera Financing Productive for members welfare improvement. Method used in this study was descriptive qualitative approach with the case-study research. This research had analysis unit which were BMT Mandiri Sejahtera Financing Productive and welfare improvement of the members that received the financing activities.The result of this study was that the BMT Mandiri Sejahtera Financing Productive took role in improving the walfare of the members. Welfare was measured by using the 5 indicators of basic needs maintanance, based on maqashid syariah, which are the religion maintanance, life maintenance, upkeep sense, descendants maintenance, and property maintenance. The improvement of welfare experienced by the members were different. Generally, the walfare improvement of the members who received BMT Mandiri Sejahtera only happenedin several basic needs maintanance.

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