scholarly journals Analysis of Model Loading and Unloading Time of Ships at Boom Baru Port, Palembang, Indonesia

2017 ◽  
Vol 138 ◽  
pp. 07012
Author(s):  
Erika Buchari ◽  
Dinar Dwi Anugerah Putranto ◽  
Aulia Rahman
Keyword(s):  
Loading And Unloading ◽  
Unloading Time

scholarly journals ANALISIS EFEKTIVITAS PENETAPAN JALUR TERKAIT DENGAN DWELLING TIME DI KANTOR PELAYANAN UTAMA BEA DAN CUKAI TIPE A TANJUNG PRIOK

2019 ◽  
Vol 1 (1) ◽  
pp. 57-69
Author(s):  
Sunarmin Sunarmin ◽  
Noviandari Sari Utami ◽  
Wiwin Eka Yulianita
Keyword(s):  
Data Collection ◽  
Dwelling Time ◽  
Descriptive Research ◽  
Directorate General ◽  
Qualitative Descriptive ◽  
Loading And Unloading ◽  
Unloading Time

Path determination is one of the customs procedures regulated in Law No. 17 of 2006 on customs. Considering the Directorate General of Customs and Excise, especially Tanjung Priok Customs and Excise KPU is faced with two functions, namely service and supervision, the strategic step taken to answer the problems of both functions is by determining the path. This study aims to discuss the determination of paths associated with dwelling time. The main problem in this research is the extent of the effectiveness of the application of the determination of the path and its relation to the dwelling time which is the loading and unloading time of the container carried from the vessel to the container out of the port. This research is a qualitative descriptive research with data collection techniques in the form of interviews and data secondary. From the results of interviews and data processed by the authors then concluded that with the establishment of a system of determining the path at the Tanjung Priok Customs and Excise KPU has been quite effective in reducing the dwelling time in the port of Tanjung Priok.

scholarly journals Relationship between Methods of Loading and Unloading, Carcass Bruising, and Animal Welfare in the Transportation of Extensively Reared Beef Cattle

Animals ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 119 ◽  
Author(s):  
Stella Huertas ◽  
Rick Kempener ◽  
Frank van Eerdenburg
Keyword(s):  
Beef Cattle ◽  
Animal Welfare ◽  
Truck Drivers ◽  
Substantial Part ◽  
Beef Production ◽  
Significant Difference ◽  
Loading And Unloading ◽  
Grade 3 ◽  
Unloading Time

In Uruguay, extensive, welfare-friendly beef production is a substantial part of the economy and culture. Transport of beef cattle to slaughterhouse compromises animal welfare. The objective of this study was to assess transport conditions related to carcass bruising. A total of 242 trucks with 8132 animals were assessed on loading, transport, unloading conditions, and carcass bruising. Average loading time was 26 min and 21 s and the perception of the truck drivers was correlated with the time took for loading and the use of devices. In 39.3% of the loadings only a flag was used. The average unloading time was 5 min and 54 s with a significant difference in time for the use of devices; only flag 3 min 51 s, cattle prod 6 min 43 s and sticks 8 min 09 s. Of the carcasses observed, 772 (9.5%) had no bruises, 873 (10.7%) had one bruise, 1312 (16.1%) two, 1231 (15.1%) three and 3944 (48.5%) had four or more bruises. Prevalence of bruises were highest on the Tuber-coxea (hip) (29.3%) following forequarter (22.4%), Tuber-ischiadicum (rear) (17.3%), ribs/flank (14.1%), rump/round (10.1%) and loin (6.8%). Bruises were 68.7% grade 1 and 31.3 % grade 2; there were no grade 3, the deepest ones, observed. It appeared that animal welfare training of truck drivers worked out well and the use of flags increased compared to a previous study in 2008.

scholarly journals ANALISIS EFEKTIVITAS PENETAPAN JALUR TERKAIT DENGAN DWELLING TIME DI KANTOR PELAYANAN UTAMA BEA DAN CUKAI TIPE A TANJUNG PRIOK

2019 ◽  
Vol 1 (1) ◽  
pp. 57-69
Author(s):  
Sunarmin Sunarmin ◽  
Noviandari Sari Utami ◽  
Wiwin Eka Yulianita
Keyword(s):  
Data Collection ◽  
Dwelling Time ◽  
Descriptive Research ◽  
Directorate General ◽  
Qualitative Descriptive ◽  
Loading And Unloading ◽  
Unloading Time

Path determination is one of the customs procedures regulated in Law No. 17 of 2006 on customs. Considering the Directorate General of Customs and Excise, especially Tanjung Priok Customs and Excise KPU is faced with two functions, namely service and supervision, the strategic step taken to answer the problems of both functions is by determining the path. This study aims to discuss the determination of paths associated with dwelling time. The main problem in this research is the extent of the effectiveness of the application of the determination of the path and its relation to the dwelling time which is the loading and unloading time of the container carried from the vessel to the container out of the port. This research is a qualitative descriptive research with data collection techniques in the form of interviews and data secondary. From the results of interviews and data processed by the authors then concluded that with the establishment of a system of determining the path at the Tanjung Priok Customs and Excise KPU has been quite effective in reducing the dwelling time in the port of Tanjung Priok.

Theoretical Prediction of Ramp Loading/Unloading Process in Hard Disk Drives

1999 ◽  
Vol 121 (3) ◽  
pp. 568-574 ◽  
Author(s):  
J. P. Peng
Keyword(s):  
Reynolds Equation ◽  
Dynamic Performance ◽  
Hard Disk Drives ◽  
Air Bearing ◽  
Disk Drives ◽  
Suction Force ◽  
Coupled Equations ◽  
Loading And Unloading ◽  
Volume Method ◽  
Unloading Time

Air bearing slider dynamic performance during the ramp loading and unloading processes was investigated theoretically in this paper. The air bearing was modeled by the modifiedcompressible Reynolds equation, and it was solved by the finite volume method. Slider dynamic equations were derived in this paper to include the ramp loading/unloading mechanism. These two sets of coupled equations were solved iteratively. Both Tripad and negative pressure air bearing (NPAB) were included in the analysis. Effects of loading/unloading velocity, disk rotational speed, as well as suspension flexure stiffness, were investigated. Slider-disk impact will occur during the Tripad loading process, especially at high loading velocity. On the other hand, this impact can be avoided for an NPAB at loading velocity up to 200 mm/s. However, an NPAB requires a longer unloading time due to its suction force. This unloading process is further delayed if a soft flexure is combined with an NPAB.

scholarly journals Agent-based modelling and simulation for ship unloading processes: determining the number of trucks and container cranes

2020 ◽  
Vol 11 ◽  
pp. 13
Author(s):  
Fadillah Ramadhan ◽  
Arif Imran ◽  
Afrin Fauzya Rizana ◽  
Liane Okdinawati
Keyword(s):  
Modelling And Simulation ◽  
Decision Makers ◽  
Process Time ◽  
Agent Based ◽  
Total Cost ◽  
Container Cranes ◽  
Agent Based Modelling ◽  
Complex Process ◽  
Loading And Unloading ◽  
Unloading Time

Loading and unloading activities generate nearly fifty per cent of the total cost in port. The loading and unloading process of the container at the port is considered as a complex process since it involves several interrelated components, such as ships, cranes, and trucks. The uncertainty of these component activities might impact the loading and unloading time and cost. Agent-based modelling and simulation (ABMS) approach is a method for analyzing and modelling a complex system. This study aims to simulate the unloading process to determine a strategy to reduces unloading process time in the largest port in Indonesian using ABMS approach. The results show that the agent-based simulation approach is feasible to be applied in port activities. This approach can assist decision-makers in predicting the number of facilities that must be used to minimize processing time.

scholarly journals Comparison of three methods to determine optimal road spacing for forwarder-type logging operations

2009 ◽  
Vol 55 (No. 9) ◽  
pp. 423-431 ◽  
Author(s):  
R. Ghaffarian M ◽  
K. Stampfer ◽  
J. Sessions
Keyword(s):  
Statistical Analysis ◽  
Data Base ◽  
Cycle Time ◽  
Statistical Models ◽  
Study Data ◽  
Time Study ◽  
Total Cost ◽  
Loading And Unloading ◽  
The Difference ◽  
Unloading Time

Optimum road spacing (ORS) of forwarding operation in Styria in Southern Austria is studied in this paper. In a harvesting operation it is important to compute the ORS to minimize the total cost of harvesting and roading. The aim of this study was a comparison of different methods to study ORS. Data from 82 cycles were used to develop two models for predicting the cycle time using statistical analysis of a time study data base. The ORS was computed by three methods including Matthews’ formula (1942), Sundberg’s method (1976), and the two statistical models for predicting the cycle time. The results gave the ORS for one-way forwarding using Matthew’s formula as 1,969 m, Sund-berg’s model as 394.4 m, and the two time study models as 463 and 909 m. The analysis of forwarding data indicated that the speed was related to a distance which contributed to the difference between models and that the loading and unloading time may be related to one or several other study variables.

scholarly journals An effective approach for the dual-resource flexible job shop scheduling problem considering loading and unloading

2020 ◽  
Author(s):  
Xiuli Wu ◽  
Junjian Peng ◽  
Xiao Xiao ◽  
Shaomin Wu
Keyword(s):  
Job Shop ◽  
Job Shop Scheduling ◽  
Setup Time ◽  
Flexible Job Shop ◽  
Scheduling Problem ◽  
Flexible Job Shop Scheduling ◽  
Job Shop Scheduling Problem ◽  
Shop Scheduling ◽  
Loading And Unloading ◽  
Unloading Time

AbstractMany manufacturing systems need more than one type of resource to co-work with. Commonly studied flexible job shop scheduling problems merely consider the main resource such as machines and ignore the impact of other types of resource. As a result, scheduling solutions may not put into practice. This paper therefore studies the dual resource constrained flexible job shop scheduling problem when loading and unloading time (DRFJSP-LU) of the fixtures is considered. It formulates a multi-objective mathematical model to jointly minimize the makespan and the total setup time. Considering the influence of resource requirement similarity among different operations, we propose a similarity-based scheduling algorithm for setup-time reduction (SSA4STR) and then an improved non-dominated sorting genetic algorithm II (NSGA-II) to optimize the DRFJSP-LU. Experimental results show that the SSA4STR can effectively reduce the loading and unloading time of fixtures while ensuring a level of makespan. The experiments also verify that the scheduling solution with multiple resources has a greater guiding effect on production than the scheduling result with a single resource.

scholarly journals Adaptive Autotuning Mathematical Approaches for Integrated Optimization of Automated Container Terminal

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Meisu Zhong ◽  
Yongsheng Yang ◽  
Yamin Zhou ◽  
Octavian Postolache
Keyword(s):  
Programming Model ◽  
Container Terminal ◽  
Operation Mode ◽  
Pso Algorithm ◽  
Container Terminals ◽  
Automated Guided Vehicles ◽  
Mixed Integer ◽  
Integrated Scheduling ◽  
Loading And Unloading ◽  
Unloading Time

With the development of automated container terminals (ACTs), reducing the loading and unloading time of operation and improving the working efficiency and service level have become the key point. Taking into account the actual operation mode of loading and unloading in ACTs, a mixed integer programming model is adopted in this study to minimize the loading and unloading time of ships, which can optimize the integrated scheduling of the gantry cranes (QCs), automated guided vehicles (AGVs), and automated rail-mounted gantries (ARMGs) in automated terminals. Various basic metaheuristic and improved hybrid algorithms were developed to optimize the model, proving the effectiveness of the model to obtain an optimized scheduling scheme by numerical experiments and comparing the different performances of algorithms. The results show that the hybrid GA-PSO algorithm with adaptive autotuning approaches by fuzzy control is superior to other algorithms in terms of solution time and quality, which can effectively solve the problem of integrated scheduling of automated container terminals to improve efficiency.

scholarly journals Reducing Down time for Engine Block Washing Machine

2019 ◽  
Vol 8 (6) ◽  
pp. 203-209
Keyword(s):  
Production Rate ◽  
Engine Block ◽  
Cylinder Block ◽  
Washing Machine ◽  
Design Change ◽  
Plate Design ◽  
Engine Cylinder ◽  
Pros And Cons ◽  
Loading And Unloading ◽  
Unloading Time

The machine down time and decrement in the production rate are due to the frequent setup changes done in the industrial machines. This is about detection and elimination of setup change-over in H-Series engine cylinder block washing machine in industry. Unlike the cylinder block of these engines, the design of both BS3 and BS4 type block is almost symmetrical which results in wrong loading of component in the machines. A detailed study of the design and the machining provides significant details on loading and unloading time. Considering the pros and cons of these ideas we finalized and implemented ideas such as Guide plate design change-over, Safety stoppers for doors and Design and material allocation for Roller, Shaft and Bush which was successful. This report covers the detailed study of the industrial washing machine, the ideas explored to overcome defects and the final ideas which were implemented..

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