Asean Journal on Science and Technology for Development最新文献_第9页

The Indonesian Throughflow and its Impact on Biogeochemistry in the Indonesian Seas 印度尼西亚通流及其对印度尼西亚海域生物地球化学的影响

Asean Journal on Science and Technology for Development Pub Date : 2020-04-30 DOI: 10.29037/AJSTD.596

E. Taufiqurrahman, A. J. Wahyudi, Y. Masumoto

{"title":"The Indonesian Throughflow and its Impact on Biogeochemistry in the Indonesian Seas","authors":"E. Taufiqurrahman, A. J. Wahyudi, Y. Masumoto","doi":"10.29037/AJSTD.596","DOIUrl":"https://doi.org/10.29037/AJSTD.596","url":null,"abstract":"It has been widely known that the Indonesian Throughflow (ITF) is an important inter-ocean connection with unique and complex oceanographic and geographic conditions, as well as a strong relation to both regional and global ocean currents and climate systems. Many studies on characteristics, mechanisms, and impacts of the ITF have been conducted, mainly focusing on the ITF pathways, transport, water mass mixing processes, and their variability in connection with monsoons and climate systems. In this paper, we summarize some of the critical aspects related to ocean conditions within the Indonesian Seas and the Indonesian Throughflow, with the main focus on studies of marine biogeochemistry in a region affected by the ITF. Although the biogeochemical cycle is one of the key research topics that are needed to advance our ocean understanding, studies on marine biogeochemistry within the Indonesian Seas are quite limited due to less observed data compared to the physical parameters. Further studies on biogeochemistry and efforts to conduct in situ and remotely sensed observations in this region are strongly required. Here, we propose several biogeochemical observations correlated to the ITF.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69629646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Anthropogenic Signatures in the Context of Landscape Evolution: Evidence from Citanduy Watershed, Java, Indonesia 景观演变背景下的人为特征：来自印度尼西亚爪哇Citanduy流域的证据

Asean Journal on Science and Technology for Development Pub Date : 2020-04-30 DOI: 10.29037/AJSTD.600

M. N. Malawani, D. Mardiatno, E. Haryono

{"title":"Anthropogenic Signatures in the Context of Landscape Evolution: Evidence from Citanduy Watershed, Java, Indonesia","authors":"M. N. Malawani, D. Mardiatno, E. Haryono","doi":"10.29037/AJSTD.600","DOIUrl":"https://doi.org/10.29037/AJSTD.600","url":null,"abstract":"The impact of humans on landscapes may differ across regions because anthropogenic intervention on the respective landscapes occurs in different human-induced contexts. This study was designed to assess the human-induced landscape evolution of the Citanduy Watershed, Java, Indonesia, and determine its anthropogenic signatures. Several approaches were used, namely anthropogenic landscape identification, anthropogenic soil development, sediment analysis, and monitoring of changes to Segara Anakan lagoon at the mouth of the Citanduy Rier. Five types of anthropogenic landscapes were observed in the research area, from a slightly modified landscape to a fully anthropogenic landscape. The anthropogenic signature was also found in the sediment of the lagoon. Present and recent environmental evolution of the lagoon was reconstructed based on series changes in the lagoon area. This reconstruction was then linked to the governmental program and anthropogenic intervention to reveal the complexity of the human-induced landscape evolution. Anthropogenic phenomena were found to strongly influence the evolution of Segara Anakan lagoon, as recorded approximately through three phases of its evolution: 1) natural processes occurring continuously until 1960, 2) human-induced landscape evolution, the boundary of which occurred in 1960–1980, and 3) the recent anthropogenic evolution that has existed since 1980.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47281875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Understanding Forest Fire Management in Indonesia from a Global Perspective 从全球视角理解印尼的森林火灾管理

Asean Journal on Science and Technology for Development Pub Date : 2020-04-30 DOI: 10.29037/AJSTD.593

I. Riyanto, A. Cahyadi, F. Kurniadhini, Hafidz Bachtiar, Dwiki Apriyana, Brian Kannardi Aji Caraka

{"title":"Understanding Forest Fire Management in Indonesia from a Global Perspective","authors":"I. Riyanto, A. Cahyadi, F. Kurniadhini, Hafidz Bachtiar, Dwiki Apriyana, Brian Kannardi Aji Caraka","doi":"10.29037/AJSTD.593","DOIUrl":"https://doi.org/10.29037/AJSTD.593","url":null,"abstract":"Forest fires are one of the global issues that attract worldwide attention. Russia, Brazil, Canada, the United States, and Indonesia are among the countries with the largest forest cover and long records of massive forest fires. Forest fire management is, therefore, critical to decreasing the severity level of these fires. Current conditions indicate that, compared with the four other countries, Indonesia has significantly reduced forest fires within the past five years. Consequently, adopting a global perspective to study the characteristics of forest fire disaster management has become necessary. For each management parameter, this research employed a literature review and descriptive analysis. The results showed that Indonesia had an advantage in the field of legal regulation. Indonesia tends to change its regulations within a short span of time, resulting in the number of forest fire incidents decreasing significantly compared with Russia, Brazil, Canada, and the United States. However, the country still has several weaknesses, namely in emergency responses, forest fire monitoring technology, and inter-institutional integration in forest fire disaster management.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47725086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Problem Solving of Isopropyl Alcohol – Water Azeotropic Characteristics Using Packed (Natural Zeolite) Bed Adsorber 用填充（天然沸石）床吸附剂解决异丙醇-水共沸特性问题

Asean Journal on Science and Technology for Development Pub Date : 2020-04-30 DOI: 10.29037/AJSTD.611

L. Prasakti, Muhammad Hartono, Pandu Prabowo Jati, M. F. Setiaji, S. K. Wirawan, H. Sudibyo

{"title":"Problem Solving of Isopropyl Alcohol – Water Azeotropic Characteristics Using Packed (Natural Zeolite) Bed Adsorber","authors":"L. Prasakti, Muhammad Hartono, Pandu Prabowo Jati, M. F. Setiaji, S. K. Wirawan, H. Sudibyo","doi":"10.29037/AJSTD.611","DOIUrl":"https://doi.org/10.29037/AJSTD.611","url":null,"abstract":"The adsorption kinetics of water from an azeotropic mixture of isopropyl alcohol and water using chemically activated natural zeolites with and without a binder (starch) was investigated. In addition, an investigation of the compressive strength of zeolite pellets was conducted to ascertain the performance of the adsorbent for long-term operation. Three parameters were applied in the zeolite-making process: the particle size of zeolite (20, 30, 50, and 80 mesh), the sintering temperature (550, 750, and 1,000°C), the compaction pressure (2, 4, and 6 tonnes), and the starch-to-zeolite weight ratio (0, 1:3, 1:5, and 1:7). Initial screenings indicated that the strongest zeolite pellet was 80-mesh zeolite powder (without starch addition) that was compacted using 6 tonnes pressure and was sintered at 750°C. The adsorption tests using the strongest zeolite were conducted in a packed-bed column for three cycles, followed by compressive strength tests on the zeolite pellets after each cycle. According to the experimental data, zeolite pellets made without the addition of starch could adsorb up to 98.4% of the initial water in the mixture. From the four models proposed to describe the kinetics of adsorption of water from the mixture, the Freundlich model turned out to be the best model.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45056917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Fenton Oxidation using Easily Recoverable Catalyst of Magnetite (Fe3O4) as an Efficient Approach to Treatment of Rhodamine B Dyeing Effluent in Traditional Fabrics Industry 易回收磁铁矿(Fe3O4) Fenton氧化法处理传统纺织工业罗丹明B染色废水

Asean Journal on Science and Technology for Development Pub Date : 2019-12-27 DOI: 10.29037/ajstd.592

I. Prasetyo, F. Akbar, Anindya Widi Prabandari, T. Ariyanto

引用次数: 3

Analyzing the Characteristics of Domestic Wastes in Belik River, the Special Region of Yogyakarta, Indonesia 印尼日惹特区Belik河生活垃圾特征分析

Asean Journal on Science and Technology for Development Pub Date : 2019-12-27 DOI: 10.29037/ajstd.591

S. Suprayogi, M. Marfai, A. Cahyadi, R. Latifah, H. Fatchurohman

引用次数: 4

Temporary Shelter Simulation Towards Effectiveness Value of OTTV and Thermal Comfort 临时遮蔽物对总热值和热舒适的模拟

Asean Journal on Science and Technology for Development Pub Date : 2019-12-27 DOI: 10.29037/ajstd.582

Dyah Puspa Ayu, B. Prayitno, A. Hariyadi

{"title":"Temporary Shelter Simulation Towards Effectiveness Value of OTTV and Thermal Comfort","authors":"Dyah Puspa Ayu, B. Prayitno, A. Hariyadi","doi":"10.29037/ajstd.582","DOIUrl":"https://doi.org/10.29037/ajstd.582","url":null,"abstract":"Indonesia is prone to a variety of natural disasters, one of which is earthquakes. Earthquakes are detrimental to human life, causing among other things a loss of shelter. As such, victims of earthquakes need basic assistance in the form of shelter, which the Indonesian government provides in the transition phase of emergency responses. Several innovations in the provision of temporary shelter have arisen in terms of packaging and fast unloading. This research aimed to examine the effective value of OTTV energy (overall thermal transfer value), differences in room temperature, and thermal comfort in existing temporary shelters. OTTV values and thermal comfort are adapted to Indonesia's humid tropical climate, which has a temperature ranging 24–30°C and air humidity of 75%. Temporary shelters were simulated with Rhinoceros and Grasshopper softwares. The simulation was carried out in two stages, with the first stage simulating the temporary shelter materials and the second stage simulating according to a predetermined standard. The results concluded that the effective value of OTTV with the use of Styrofoam-based shelter gives a value of 27.63 W/m2 with a decrease of up to 4.70 W/m2 and the temperature drops to 2–3°C.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42858197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

SINGV – the Convective-Scale Numerical Weather Prediction System for Singapore 新加坡对流尺度数值天气预报系统

Asean Journal on Science and Technology for Development Pub Date : 2019-12-27 DOI: 10.29037/ajstd.581

Xiangyu Huang, D. Barker, S. Webster, A. Dipankar, A. Lock, M. Mittermaier, Xiangming Sun, R. North, Rob Darvell, D. F. Boyd, J. C. Lo, Jianyu Liu, B. Macpherson, P. Heng, A. Maycock, Laura Pitcher, R. Tubbs, M. McMillan, Sijin Zhang, S. Hagelin, A. Porson, G. Song, Becky Beckett, W. Cheong, A. Semple, C. Gordon

{"title":"SINGV – the Convective-Scale Numerical Weather Prediction System for Singapore","authors":"Xiangyu Huang, D. Barker, S. Webster, A. Dipankar, A. Lock, M. Mittermaier, Xiangming Sun, R. North, Rob Darvell, D. F. Boyd, J. C. Lo, Jianyu Liu, B. Macpherson, P. Heng, A. Maycock, Laura Pitcher, R. Tubbs, M. McMillan, Sijin Zhang, S. Hagelin, A. Porson, G. Song, Becky Beckett, W. Cheong, A. Semple, C. Gordon","doi":"10.29037/ajstd.581","DOIUrl":"https://doi.org/10.29037/ajstd.581","url":null,"abstract":"Extreme rainfall is one of the primary meteorological hazards in Singapore, as well as elsewhere in the deep tropics, and it can lead to significant local flooding. Since 2013, the Meteorological Service Singapore (MSS) and the United Kingdom Met Office (UKMO) have been collaborating to develop a convective-scale Numerical Weather Prediction (NWP) system, called SINGV. Its primary aim is to provide improved weather forecasts for Singapore and the surrounding region, with a focus on improved short-range prediction of localized heavy rainfall. This paper provides an overview of the SINGV development, the latest NWP capabilities at MSS and some key results of evaluation. The paper describes science advances relevant to the development of any km-scale NWP suitable for the deep tropics and provides some insights into the impact of local data assimilation and utility of ensemble predictions.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43745352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Land Suitability Analysis for Housing in Pesisir Selatan Regency, West Sumatra, Indonesia 印度尼西亚西苏门答腊岛Pesisir Selatan Regency住宅用地适宜性分析

Asean Journal on Science and Technology for Development Pub Date : 2019-08-30 DOI: 10.29037/AJSTD.574

D. Widiyastuti, H. Ermawati, Lambang Septiawan, Ignatius Salivian Wisnu Kumara

{"title":"Land Suitability Analysis for Housing in Pesisir Selatan Regency, West Sumatra, Indonesia","authors":"D. Widiyastuti, H. Ermawati, Lambang Septiawan, Ignatius Salivian Wisnu Kumara","doi":"10.29037/AJSTD.574","DOIUrl":"https://doi.org/10.29037/AJSTD.574","url":null,"abstract":"Increases in the numbers of residents in a given location have the consequence of increasing the need for living space. However, diverse environmental conditions make it impossible to develop housing in every location. Spatial analysis is therefore useful in determining land suitability for housing development so that environmental problems are avoided. The aims of this study were to determine the projected land needs for housing in Pesisir Selatan Regency, West Sumatra, Indonesia, as well as to perform suitable area mapping for housing through spatial analysis using five physical parameters (slope, disaster vulnerability, river and beach border, and protected area). The results showed that the land needed for housing in Pesisir Selatan increased every year. By 2020, it is predicted that the land allocation for housing will be 15.6–51.15 km2. Based on the spatial analysis, 21.657% of the area had high suitability (S1) for housing, 18.616% had moderate suitability (S2), 6.782% had low suitability (S3), and 52.944% was not suitable (N1). It is predicted that in 2020, the government will have to use the low suitability area despite its more significant risks. Therefore, it will be necessary to pay attention to mitigation aspects and housing technique manipulation in the steep slope area.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45147107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Analytical Hierarchy Process for Regional Development Priority in Maluku Province, Indonesia 印尼马鲁古省区域发展重点的层次分析法

Asean Journal on Science and Technology for Development Pub Date : 2019-08-30 DOI: 10.29037/AJSTD.580

Lia Amellya Larasati, N. M. Khoiruluswati, R. R. Aliyya, U. Widyanarko, R. F. Putri

{"title":"Analytical Hierarchy Process for Regional Development Priority in Maluku Province, Indonesia","authors":"Lia Amellya Larasati, N. M. Khoiruluswati, R. R. Aliyya, U. Widyanarko, R. F. Putri","doi":"10.29037/AJSTD.580","DOIUrl":"https://doi.org/10.29037/AJSTD.580","url":null,"abstract":"Maluku is one of the provinces of the eastern part of Indonesia, consisting of 11 regencies. The Maluku branch of Statistics Indonesia reported in 2018 that in 2013–2018 the number of poor people in Maluku's rural areas increased by 1,970. Concurrently, the number of poor people in urban areas decreased by around 6,070 people. This fact showed that development in Maluku Province hadn't been implemented effectively and equally. This study aimed to determine the development priority in Maluku Province using the Analytical Hierarchy Process method. The determination of priorities was based on three aspects in the human development index concept, namely education, health, and economy. Data from Statistics Indonesia on life expectancy, mean years of schooling, expected years of schooling, and per capita expenditure were the indicators were used as the indicators in this study. The results showed that there were 10 regencies with a high level of priority, with the exception being Ambon City, which had a low-level priority. Classification of regencies showed that there was a disparity between them. These findings can help to inform future development designs in Maluku Province.","PeriodicalId":8479,"journal":{"name":"Asean Journal on Science and Technology for Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46159082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1