scholarly journals Performance Analysis of Signaled Intersections to Improve Safety in Depok Intersection, Depok City

2019 ◽  
Author(s):  
Sony Widyawan ◽  
Darul Prayogo ◽  
Rukman . ◽  
Diajeng Ayu D P ◽  
Abdul Rokhim
Keyword(s):  
Traffic Congestion ◽  
Good Condition ◽  
Phase 3 ◽  
Service Levels ◽  
The Third ◽  
Third Phase ◽  
Three Phase ◽  
Traffic Conflicts ◽  
Traffic Conflict ◽  
Selection Of

Transportation problems are one of the issues faced in Depok, especially at intersections. The problems of traffic congestion and conflict often occur at intersections, especially at Depok intersection in which one of the efforts made to reduce the conflicts is made by managing the intersection. The method used in analyzing intersection performance is the use of calculations at IHCM, while the analysis of traffic conflicts to determine the seriousness of traffic conflicts is to use traffic conflict techniques (TCT) compared to the conflicts. Recommendations are made with a scheme using the selection of 3 phases and 3.5 phases then making a comparison with the third phase and choosing the most appropriate scenario. From the recommendation scheme made using the VISSIM 10 PTV software, the most appropriate scheme is obtained by using three-phase settings. The results of phase 3 simulations are effective in reducing the number of traffic conflicts and service levels are still in good condition.

scholarly journals Analisis Kinerja Simpang Bersinyal Untuk Meningkatkan Keselamatan Pada Simpang Depok Kota Depok

2019 ◽  
Vol 6 (1) ◽  
pp. 1-16
Author(s):  
Sony Widyawan ◽  
Rukman Rukman
Keyword(s):  
Traffic Congestion ◽  
Good Condition ◽  
Conflict Analysis ◽  
Phase 3 ◽  
Service Levels ◽  
The Third ◽  
Third Phase ◽  
Traffic Conflicts ◽  
Traffic Conflict

The problemof transportation isone of the problems faced in Depok, especially atintersections. Problems of traffic congestion and conflicts often occur at signalizedintersections, especially at the intersection of four signalized Depok Depok City where one ofthe efforts made to reduce conflicts in Depok intersection is done by setting the intersection.The methods used in the analysis of the performance of the intersection is the use ofcalculation on IHCM, while the traffic conflict analysis to determine the level of seriousnessof traffic conflicts is by using traffic conflict Technique (TCT) is compared to that conflictVisSim 10. Recommendation is done by using a scheme using a 3-phase elections and 3.5phase and then make a comparison with the third phase (existing) and selected the mostappropriate scenario. From the scheme of recommendations that were made by using thesoftware PTV VISSIM 10 obtained the most appropriate scheme that uses three-phasearrangement. The results of the simulation phase 3 was effective at reducing the number oftraffic conflicts and service levels are still in good condition

PENERAPAN MODEL QUANTUM LEARNING UNTUK MENINGKATKAN HASIL BELAJAR AUTOCAD SISWA KELAS X TEKNIK PEMESINAN SMK NEGERI 1 STABAT

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Abdul Hasan Saragih
Keyword(s):  
Positive Response ◽  
Phase 1 ◽  
First Grade ◽  
Learning Model ◽  
Second Phase ◽  
Phase 2 ◽  
Phase 3 ◽  
The Third ◽  
Third Phase ◽  
Quantum Learning

This classroom research was conducted on the autocad instructions to the first grade of mechinary class of SMK Negeri 1 Stabat aiming at : (1) improving the student’ archievementon autocad instructional to the student of mechinary architecture class of SMK Negeri 1 Stabat, (2) applying Quantum Learning Model to the students of mechinary class of SMK Negeri 1 Stabat, arising the positive response to autocad subject by applying Quantum Learning Model of the students of mechinary class of SMK Negeri 1 Stabat. The result shows that (1) by applying quantum learning model, the students’ achievement improves significantly. The improvement ofthe achievement of the 34 students is very satisfactory; on the first phase, 27 students passed (70.59%), 10 students failed (29.41%). On the second phase 27 students (79.41%) passed and 7 students (20.59%) failed. On the third phase 30 students (88.24%) passed and 4 students (11.76%) failed. The application of quantum learning model in SMK Negeri 1 Stabat proved satisfying. This was visible from the activeness of the students from phase 1 to 3. The activeness average of the students was 74.31% on phase 1,81.35% on phase 2, and 83.63% on phase 3. (3) The application of the quantum learning model on teaching autocad was very positively welcome by the students of mechinary class of SMK Negeri 1 Stabat. On phase 1 the improvement was 81.53% . It improved to 86.15% on phase 3. Therefore, The improvement ofstudent’ response can be categorized good.

An Analytical Model for the Effective Dielectric Constant of a 0-3-0 Composite

2010 ◽  
Author(s):  
K. A. Cook-Chennault ◽  
S. Banerjee
Keyword(s):  
Dielectric Constant ◽  
Aspect Ratio ◽  
Analytical Model ◽  
Experimental Results ◽  
Effective Dielectric Constant ◽  
The Third ◽  
Third Phase ◽  
Three Phase ◽  
Phase 0 ◽  
Experimental Values

An analytical expression for prediction of the effective dielectric constant of a three phase 0-3-0 ferroelectric composite is presented. The analytical results are verified with the experimental results from Nan et al [1]. We extend the analytical model, so that the influence of the shape of the third phase inclusion, on the effective dielectric constant of the composite, can be investigated. The results indicate that the dielectric constant increases ∼7 times, when the aspect ratio of the conductive inclusion is increased from 1 (sphere) to 10 (spheroid). The analytical predictions compare favorably with the experimental values.

scholarly journals Research and Application of Anti-floating Schemes of Deep Foundation Pit of Subway for Underwater Excavation and underwater concrete sealing

2020 ◽  
Vol 165 ◽  
pp. 04001
Author(s):  
Sheng Luo
Keyword(s):  
Deep Foundation ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Main Structure ◽  
The Third ◽  
Third Phase ◽  
Underwater Concrete ◽  
Subway Construction ◽  
Bottom Slab ◽  
Selection Of

To implement deep foundation pit of subway construction with underground continuous wall adopting underwater excavation and waterproofing concrete bottom sealing curtain, the depth of bottom concrete must first meet the anti-floating requirements of the foundation pit. Since the elevation of the bottom slab of the station is certain, the thicker the sealing concrete, the deeper the excavation depth of the foundation pit, the greater the buoyancy of the water to be withstood, and eventually the thicker the sealing concrete, so the selection of foundation pit anti-floating scheme is very critical. This paper combines the practical construction of the deep foundation pit of the main structure of Yongdingmenwai station which is in the third phase of Beijing Metro Line 8 construction project, and analyzes and compares the anti-floating scheme of the foundation pit, so as to select a more reasonable anti-floating scheme, in order to apply experiences for future similar projects and construction.

scholarly journals Meso Trajectories in the National Innovation System and Their Regulation

2020 ◽  
Author(s):  
Oleg Golichenko
Keyword(s):  
Public Policy ◽  
Innovation System ◽  
Evolutionary Selection ◽  
The Third ◽  
Third Phase ◽  
Three Phase ◽  
Knowledge Rules ◽  
Innovative Behaviour ◽  
Two Phases ◽  
Phase Process

The mesotrajectory is presented as a three-phase process of the development of mesopopulations: emergence (origination), diffusion (acceptance, assimilation and adaptation) and retention of a new rule (innovation). The central category of the NIS, i.e. knowledge, is considered from two positions: as a set of specific rules and as the most critical innovation resource. The proposed methodology also describes the three phases of mesostructure dividing each of them into two series–parallel sub-phases and incorporating them in the design of niches, technological and market ones. The methodology allows specifying the effect of the evolutionary selection and intermittent development of meso-units in the first two phases, as well as the mechanisms of changing the socio-technological regime in the third phase. The study set and analyse policy for creating motivation for innovative behaviour at different phases of the mesotrajectory. The actors’ mesopopulation are represented as carriers of the properties of knowledge-rules-resources. The knowledge of the actor is taking into account not only as a rule but a factor breaking the mesotrajectory. Among other characteristics of mesotrajectory discontinuity, intermittent equilibrium is taken into consideration in the study. The problem of regulating trajectory continuity is analysed in the framework of public policy.

Separation of vanadium(V) using N235 by three-phase system in concentrated HCl media

2017 ◽  
Vol 95 (6) ◽  
pp. 717-722 ◽  
Author(s):  
Chun Shen ◽  
Yimin Zhang ◽  
Jing Huang ◽  
Shenxu Bao ◽  
Xiao Yang ◽  
...  
Keyword(s):  
Organic Phase ◽  
Extraction Efficiency ◽  
Inhibitory Effect ◽  
Phase System ◽  
Phase Form ◽  
The Third ◽  
Third Phase ◽  
Vanadium Extraction ◽  
Three Phase ◽  
Ftir Spectral Analysis

The third phase formed in the process of extracting vanadium in a N235/HCl system was usually regarded as a limit to the throughput of the plant. To have a deep insight on this problem, the formation of the third phase in the extraction of vanadium by tertiary amine N235 in the concentrated HCl system was studied. The optimum parameters of three-phase system extraction were determined, and FTIR analysis was carried out to characterize the structure of extracted complexes and analyze the mechanism of formation and elimination of the third phase. The results showed that vanadium extraction efficiency was 86.5% with 20% v/v N235 and a phase ratio (O:A) of 1:2 in 2 min at 25 °C, though an obvious third phase was found within the experimental HCl concentration range. Cl− is the participant in the process of increasing the vanadium extraction efficiency, whereas H+ has an inhibitory effect on vanadium extraction. Meanwhile, the structure of the extracted complex was confirmed as (R3N)m(HCl)m+x·([Formula: see text])·(H2O)n through a solvation mechanism with molecular association, which was further proved by FTIR spectral analysis. Furthermore, the limited solubility of the ion-extracted complexes in the nonpolar solvent kerosene made the third-phase form. The third phase disappeared when phase modifier (about 5% v/v TBP) was added into the organic phase, as the polarity of the organic phase increased.

scholarly journals A Three-Phase Multiobjective Mechanism for Selecting Retail Stores to Close

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Rong-Chang Chen ◽  
Shu-Ping Suen
Keyword(s):  
Genetic Algorithm ◽  
Information System ◽  
Clustering Algorithm ◽  
Retail Store ◽  
Second Phase ◽  
Considerable Influence ◽  
Multiobjective Genetic Algorithm ◽  
The Third ◽  
Third Phase ◽  
Three Phase

To operate a successful and growing business, a retail store manager has to make tough decisions about selectively closing underperforming stores. In this paper, we propose using a three-phase multiobjective mechanism to help retail industry practitioners determine which stores to close. In the first phase, a geographic information system (GIS) andk-means clustering algorithm are used to divide all the stores into clusters. In the second phase, stores can be strategically selected according to the requirements of the company and the attributes of the stores. In the third phase, a neighborhood-based multiobjective genetic algorithm (NBMOGA) is utilized to determine which stores to close. To examine the effectiveness of the proposed three-phase mechanism, a variety of experiments are performed, based partly on a real dataset from a stock-list company in Taiwan. Results from the experiments show that the proposed three-phase mechanism can help efficiently decide which store locations to close. In addition, the neighborhood radius has a considerable influence on the results.

scholarly journals Phosphorus Recovery from Sewage Sludge Using Acidithiobacilli

2021 ◽  
Vol 18 (13) ◽  
pp. 7135
Author(s):  
Surendra K. Pradhan ◽  
Helvi Heinonen-Tanski ◽  
Anna-Maria Veijalainen ◽  
Sirpa Peräniemi ◽  
Eila Torvinen
Keyword(s):  
Sewage Sludge ◽  
Elemental Sulfur ◽  
Phosphorus Recovery ◽  
Acidithiobacillus Thiooxidans ◽  
Plant Nutrient ◽  
Phase 3 ◽  
The Third ◽  
Third Phase ◽  
Global Demand ◽  
Removal Of Heavy Metals

Sewage sludge contains a significant amount of phosphorus (P), which could be recycled to address the global demand for this non-renewable, important plant nutrient. The P in sludge can be solubilized and recovered so that it can be recycled when needed. This study investigated the P solubilization from sewage sludge using Acidithiobacillus thiooxidans and Acidithiobacillus ferrooxidans. The experiment was conducted by mixing 10 mL of sewage sludge with 90 mL of different water/liquid medium/inoculum and incubated at 30 °C. The experiment was conducted in three semi-continuous phases by replacing 10% of the mixed incubated medium with fresh sewage sludge. In addition, 10 g/L elemental sulfur (S) was supplemented into the medium in the third phase. The pH of the A. thiooxidans and A. ferrooxidans treated sludge solutions was between 2.2 and 6.3 until day 42. In phase 3, after supplementing with S, the pH of A. thiooxidans treated sludge was reduced to 0.9, which solubilized and extracted 92% of P. We found that acidithiobacilli supplemented with S can be used to treat sludge, i.e., achieve hygienization, removal of heavy metals, and solubilization and recovery of P.

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