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All Journal Journal of Regional and City Planning International Journal of Multidisciplinary: Applied Business and Education Research Bulletin of Chemical Reaction Engineering & Catalysis
Yan Liu
School of Geography Planning and Environmental Management, University of Queensland
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Environmental Science Medicine & Pharmacology Social Sciences Transportation

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Spatial Dynamic Models for Inclusive Cities: a Brief Concept of Cellular Automata (CA) and Agent-Based Model (ABM) Wahyudi, Agung; Liu, Yan
Jurnal Perencanaan Wilayah dan Kota Vol 26, No 1 (2015)
Publisher : The ITB Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.543 KB) | DOI: 10.5614/jpwk.2015.26.1.6

Abstract

Abstrak.Kawasan perkotaan terutama di negara-negara berkembang menunjukkan laju pertumbuhan fisik yang tinggi. Telah banyak model yang mencoba merekonstruksi pertumbuhan perkotaan ini dengan menggunakan data demografi dan data sosial. Permodelan ini adalah salah satu yang lazim digunakan para praktisi perencana karena ketersediaan data dan waktu proses yang relatif lebih singkat. Sayangnya, model ini bersifat statis yaitu hanya menangkap karakteristik dan bentuk kota pada satu satuan waktu. Model ini tidak akan berubah saat variabel waktu berubah. Kebanyakan model ini bertujuan untuk memperkuat atau memperjelas suatu teori perencanaan perkotaan. Model statis ini juga memanfaatkan batas-batas administrasi dan tidak memungkinkan untuk melakukan permodelan diluar bentuk administrasi sebuah kota. Dengan permasalahan perkotaan yang semakin rumit yang menuntut pengambil keputusan membuat kebijakan tepat, diperlukan suatu metode permodelan pertumbuhan perkotaan yang dinamis yang dapat memberikan informasi yang lebih lengkap kepada pengambil kebijakan terkait struktur dan bentuk perkotaan, serta beroperasi pada skala yang lebih detail. Kemudian model perkotaan ini juga perlu mewakili perilaku para aktor pembangunan perkotaan. Salah satu konsep yang berkembang sejak tiga dasawarsa lalu adalah cellular automata (CA) dan agent-based urban model (ABM). Dalam konteks penelitian perkotaan di Indonesia, sayangnya konsep-konsep ini belum banyak tersedia pada jurnal-jurnal perkotaan dan terlebih lagi belum banyak kontribusi pada konsep-konsep permodelan dan mekanisme pada proses perubahan guna/tutupan lahan. Artikel ini bertujuan untuk memperkenalkan teori dasar CA dan adaptasi dari sistem tersebut untuk keperluan aplikasi di bidang spasial perkotaan. Kami juga akan menjelaskan konsep ABM sebagai komponen dari model yang memiliki kemampuan mewakili perilaku para pelaku pembangunan. Beberapa contoh aplikasi dan kemungkinan perkembangan model dinamis untuk kota inklusif akan diberikan di akhir artikel ini.Kata kunci. Cellular automata, agent-based, permodelan perkotaan, Sistem Informasi GeografisAbstract. Urban areas in the developing countries experience a rapid urban growth. Current practices in urban modelling employ demographic and social data as the inputs for urban models. These practices occur as a result of data scarcity in the developing countries. These models are static in which only captures the shapes of a city at the selected time. They have limitation in presenting the sequence of simulations over a series of time. Another limitation of static models is the use of administrative boundary as their unit of analysis, which often less accurate for large regions. When facing with a mounting complexity of a city, the decision makers need to obtain as much as information to guide their decisions. They need to know how big the magnitude of urban problems could have, and where exactly the policy should be implemented. They also need to know how different stakeholders influence the spaces in the cities. Cellular Automata (CA) and Agent-based Model (ABM) are the two prominent dynamic models occupying a large portion of spatial discussions in the last two decades. In the context of research in Indonesia, they are less recognized, and have less contribution to many urban applications. This article aims to briefly introduce the concept of CA and ABM in spatial context, in particular land use land cover changes in urban areas. Examples and potential application for inclusive cities are given in the last part of the discussion.Keywords. Cellular automata, agent-based model, urban modelling, GIS
Pure Phase Co3O4 Anchored on Nitrogen-Doped Porous Carbon for High-Performance Lithium-ion Batteries Ruan, Qingling; Yang, Zhehan; Liu, Yan; Xu, Junjie; Zhang, Jie; Dai, Jinhang; Gu, Xingxing
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 1 Year 2025 (April 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20238

Abstract

Transition metal oxides (TMOs), due to their high theoretical capacity, and long cycling stability, have received increasing attention as the anode materials for lithium-ion batteries (LIBs). In this work, a kind of TMOs, Co3O4, anchored on nitrogen-doped porous carbon (NC), has been successfully synthesized via calcining cobalt salts and biomass precursor together. The synthesized Co3O4/NC as an anode material for lithium-ion batteries illustrates excellent cycling performances. At a current density of 1.0 A.g-1, the Co3O4/NC anode could maintain a superior high reversible capacity of 1131.4 mAh.g-1 after 2000 cycles. Even if the current increases to 8.0 A.g-1, it still shows a reversible capacity of 502.9 mAh.g-1. Such excellent electrochemical performances could be attributed to the high specific surface area of NC that facilitates the uniform dispersion of Co3O4 nanoparticles on it as well as the abundant porous structure and good conductivity of NC that enhance the Li+ transfer and electrons transfer, respectively. In a word, this work provides a simple strategy for synthesizing the NC-supported pure phase Co3O4 composite anode material for realizing high-performance LIBs. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Influences of Calligraphy Education in Shenjiaying Primary School Liu, Yan
International Journal of Multidisciplinary: Applied Business and Education Research Vol. 6 No. 9 (2025): International Journal of Multidisciplinary: Applied Business and Education Rese
Publisher : Future Science / FSH-PH Publications

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijmaber.06.09.28

Abstract

Calligraphy holds an important place in the life of Chinese people. Being a supreme form of art that keeps the Chinese culture, calligraphy is taught to young students. This study explores the impact of calligraphy education on the cognitive abilities, fine motor skills, and psychosocial skills of students in Shenjiaying Primary School. The study aims to evaluate the improvement effect of calligraphy education on students' memory, attention, hand-eye coordination, self-discipline, and cultural appreciation ability. This study employed purposive sampling, selecting three teachers, three students, and three parents from Shenjiaying Primary School in Huangshi City, Hubei Province as interview subjects under an exploratory case study design. A sample size of three participants per group ensures in-depth interviews, allowing for detailed collection of each participant's specific perceptions and feedback on calligraphy education. This approach avoids superficial information from large samples while meeting qualitative research requirements for "information saturation. Through thematic analysis, responses were collated then analyzed. The results indicate that calligraphy education significantly improves students' observation ability, memory, and hand-eye coordination, while enhancing their self-discipline and cultural identity. Based on these findings, a learning plan is proposed which aims at integrating calligraphy education more effectively into primary school curriculum to promote students' all-round development. The conclusion points out that calligraphy education is not only a cultivation of artistic skills, but also an important way to enhance students' cognitive and psychological qualities. Calligraphy education can be effectively integrated into primary school classrooms through grade-segmented teaching, interdisciplinary linkages, and home-school collaboration.
Co-Authors Agung Wahyudi Dai, Jinhang Gu, Xingxing Jie Zhang Ruan, Qingling Xu, Junjie Yang, Zhehan