The simulation and optimization of the polysilicon production process using system dynamics: A case study in China

2014 ◽  
Vol 15 (12) ◽  
pp. 2521-2532 ◽  
Author(s):  
Jiuping Xu ◽  
Zhiyi Meng ◽  
Liming Yao ◽  
Xingchuan Jing
Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 671
Author(s):  
Xiaoying Zhou ◽  
Feier Wang ◽  
Kuan Huang ◽  
Huichun Zhang ◽  
Jie Yu ◽  
...  

Predicting and allocating water resources have become important tasks in water resource management. System dynamics and optimal planning models are widely applied to solve individual problems, but are seldom combined in studies. In this work, we developed a framework involving a system dynamics-multiple objective optimization (SD-MOO) model, which integrated the functions of simulation, policy control, and water allocation, and applied it to a case study of water management in Jiaxing, China to demonstrate the modeling. The predicted results of the case study showed that water shortage would not occur at a high-inflow level during 2018–2035 but would appear at mid- and low-inflow levels in 2025 and 2022, respectively. After we made dynamic adjustments to water use efficiency, economic growth, population growth, and water resource utilization, the predicted water shortage rates decreased by approximately 69–70% at the mid- and low-inflow levels in 2025 and 2035 compared to the scenarios without any adjustment strategies. Water allocation schemes obtained from the “prediction + dynamic regulation + optimization” framework were competitive in terms of social, economic and environmental benefits and flexibly satisfied the water demands. The case study demonstrated that the SD-MOO model framework could be an effective tool in achieving sustainable water resource management.


2015 ◽  
Vol 9 (3) ◽  
pp. 196-207 ◽  
Author(s):  
C.K. Gotangco ◽  
J. See ◽  
J.P. Dalupang ◽  
M. Ortiz ◽  
E. Porio ◽  
...  

2021 ◽  
Author(s):  
David Nasrun ◽  
Julianus Hutabarat ◽  
Fuad Ahmadi
Keyword(s):  

2019 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
A. Faiz Khudlari Thoha ◽  
Reka Gunawan ◽  
Bambang Subandi

ABSTRACTThis study aims to provide an overview of the strategy and management of the Friday Khutbah production process at the Al-Falah Mosque in Surabaya as its object. The method used by researchers in this research is a case study with data collection procedures using in-depth interviews, observation, and documentation. So that researchers can explore the phenomenon of the object of research in detail and depth. The findings that occur in the field show results that are sharpened by descriptive descriptions of several categories of production. First, the process of determining the idea of the Friday sermon program at Al-Falah Mosque. Second, for the selection mechanism for Friday sermons at Al-Falah Mosque. Third, the design of the Friday sermon program at Al-Falah Mosque. Fourth, testing and evaluating the Friday sermon program at Al-Falah Mosque. Fifth, the final design of the Friday sermon program at Al-Falah Mosque.ABSTRAKPenelitian ini ditujukan untuk memberikan gambaran mengenai strategi dan manajemen proses produksi khutbah Jum’at di Masjid Al-Falah Surabaya sebagai objeknya.  Metode yang digunakan oleh peneliti dalam penelitian ini ialah studi kasus dengan prosedur pengumpulan data menggunakan wawancara secara mendalam, observasi, dan dokumentasi. Sehingga peneliti dapat menggali fenomena pada objek penelitian secara rinci dan mendalam. Temuan yang terjadi di lapangan menunjukkan hasil yang dipertajam dengan uraian deskriptif mengenai beberapa kategori produksi khubah. Pertama,  proses penentuan gagasan  program khutbah Jum’at di Masjid Al-Falah. Kedua, untuk mekanisme  seleksi program khutbah Jum’at di Masjid Al-Falah. Ketiga, desain program khutbah Jum’at di Masjid Al-Falah. Keempat, pengujian dan evaluasi program khutbah Jum’at di Masjid Al-Falah. Kelima, desain akhir program khutbah Jum’at di Masjid Al-Falah. 


2018 ◽  
Vol 17 (2/3) ◽  
pp. 197 ◽  
Author(s):  
Nemi Lorraine S. Escalante ◽  
Jonathan A. Uy ◽  
Hanah Marie M. Tonggol ◽  
Amando A. Radomes <suffix>Jr.</suffix> ◽  
Lanndon A. Ocampo

Kybernetes ◽  
2015 ◽  
Vol 44 (6/7) ◽  
pp. 1049-1066 ◽  
Author(s):  
Seyed Behnam Khakbaz ◽  
Nastaran Hajiheydari

Purpose – Successful future has inspired organizations to measure long-term and non-financial measurements and key performance indicators (KPIs). Kaplan and Norton proposed balanced scorecard (BSC) for this issue and have extended it to one of the most preferred strategic management system’s tools. However, available planning tools like BSC have some limitations, like dependency to the developer, weakness in showing time delays, and also mathematical relationships between lead and lag indicators. In this paper, the authors would present a new methodology for developing BSCs, which would be able to overcome these limitations. Therefore, the purpose of this paper is to develop an integrated framework for developing BSC with system dynamics approach (a dynamic BSC (DBSC)) which has lower limitation in compare with traditional BSC. The other purpose of this paper is developing a DBSC for an Iranian public transportation company. Design/methodology/approach – Based on this purpose, related literature was thoroughly reviewed and the proposed methodology designed using the system dynamics and BSC concepts. This methodology is a composition of original BSC development methodology and system dynamics principles. An assumed organization has been used for showing methodology’s capability and procedure. Furthermore, a case study has been accomplished in this paper. This case study is a DBSC which has been developed for an Iranian public transportation company. The purpose of this case study is to ensure about proposed methodology implication in action. Findings – The authors proposed a methodology which can be applied for developing BSCs. This methodology consists of six different steps which are: developing a system for organization, selecting stakeholders’ most important objectives and target, identifying organization’s objectives and their KPIs for different BSC aspects, developing strategy map, targeting, and selecting initiatives. In the proceeding of this paper, the proposed methodology and its steps would be explained in detail. Originality/value – The system dynamic approach has precedents in business studies; however, this research makes this approach operational in BSC designing and analysis. BSCs, which developed by this methodology can show time delays between an organization’s objectives, its KPIs’ relationship and also planning for it. Selecting achievable and rational vision and objectives’ targets, change management, scenario planning and policy analysis are other values which can be achieved by DBSC deployment which need further researches. In summary, this research has shown an integrated framework for developing DBSC and then applies it to an Iranian public transportation company. Therefore, another contribution of this paper is the application of this method for an Iranian public transportation company.


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