Model-based estimation of plastic debris accumulation in Banten Bay, Indonesia, using particle tracking - Flow model hydrodynamics approach

For about a decade, ultra-Orthodox and Bedouin women have been applying to higher education academic institutions in Israel in order to study despite bans from their conservative communities. Academic studies instill learning and culture, create an encounter with knowledge for the individual and thus carry a high degree of threat to the rigid conservative enclave. This article examines how conservative societies cope with the wheels of change as the process of higher education for women expands. The case studies in this article are 60 educated women from Jewish ultra-Orthodox society and from Negev Bedouin groups in Israel. As shown by the findings, a theoretical flow model based on three parameters emerges: value-constraint-maneuver. In summary, it appears that this model reflects the development of a new conservative female model that combines traditional values with contemporary indicators.

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Initial Analysis of Plastic Debris Accumulation in the Estuary of Wonorejo River, Surabaya, Indonesia

E3S Web of Conferences ◽

10.1051/e3sconf/202014807001 ◽

2020 ◽

Vol 148 ◽

pp. 07001

Author(s):

Setyo Budi Kurniawan ◽

Muhammad Fauzul Imron

Keyword(s):

River Estuary ◽

Dry Weight ◽

Sampling Point ◽

Plastic Pollution ◽

Plastic Debris ◽

Debris Accumulation ◽

Plastic Bags ◽

Sampling Points ◽

Advance Research ◽

One Way Anova

The purpose of this research was to investigate the accumulation of plastic debris in the Wonorejo River Estuary, Surabaya, Indonesia. Visible plastic debris were collected from three (3) sampling points along the intertidal area of Wonorejo River Estuary. The correlation between sampling points (SPs) and the amount of the collected plastic debris (CPD) was analysed using one-way ANOVA. Result of one-way ANOVA showed that the sampling point was significantly affect the amount of the collected plastic debris (p<0.05). A further analysis using Tukey’s Significance Honest Test indicating a significantly higher CPD on SP2 compared to the SP1 and SP3 (p<0.05). The amount of CPD were 126.07±12.00 g dry weight/m2 from SP1, 375.97±16.72 g dry weight/m2 from SP2, and 291.13±36.28 g dry weight/m2 from SP3. The highest percentage of collected debris item was plastic bags (up to 57.90%), followed by bottle caps (up to 16.65%). The most identified plastic types were Low-Density Polyethylene (LDPE) (up to 73.13%), followed by Polypropylene (PP) (up to 17.22%). Understanding the accumulation of plastic debris in estuary is a fundamental requirement to conduct an advance research related to the marine plastic pollution and to determine further actions to solve this problem.

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Elevator Traffic Flow Model Based On Dynamic Passenger Distribution

2007 IEEE International Conference on Control and Automation ◽

10.1109/icca.2007.4376789 ◽

2007 ◽

Author(s):

Zhifeng Pan ◽

Fei Luo ◽

Yuge Xu

Keyword(s):

Traffic Flow ◽

Flow Model ◽

Traffic Flow Model ◽

Model Based

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A Macroscopic Traffic Model based on Driver Reaction and Traffic Stimuli

Applied Sciences ◽

10.3390/app9142848 ◽

2019 ◽

Vol 9 (14) ◽

pp. 2848 ◽

Cited By ~ 3

Author(s):

Zawar H. Khan ◽

Waheed Imran ◽

Sajid Azeem ◽

Khurram S. Khattak ◽

T. Aaron Gulliver ◽

...

Keyword(s):

Traffic Flow ◽

Flow Model ◽

Traffic Model ◽

Traffic Flow Model ◽

Velocity Constant ◽

Model Based ◽

Proposed Model ◽

Macroscopic Traffic Flow ◽

Macroscopic Traffic Model ◽

Traffic Behavior

A new macroscopic traffic flow model is proposed, which considers driver presumption based on driver reaction and traffic stimuli. The Payne–Whitham (PW) model characterizes the traffic flow based on a velocity constant C 0 which results in unrealistic density and velocity behavior. Conversely, the proposed model characterizes traffic behavior with velocities based on the distance headway. The performance of the proposed and PW models is evaluated over a 300 m circular road for an inactive bottleneck. The results obtained show that the traffic behavior with the proposed model is more realistic.

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