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Computation of the greenery-sky-view factor in daylit buildings

ARCHITECTURAL ENGINEERING AND DESIGN MANAGEMENT 2022年第6期18卷 850-869页

作者： Mangkuto, Rizki A. Paramita, Beta Inst Teknol Bandung Fac Ind Technol Bldg Phys Res Grp Jl Ganesha 10 Bandung 40132 Jawa Barat Indonesia Univ Pendidikan Indonesia Fac Technol & Vocat Educ Architecture Study Program Bandung Indonesia

The greenery-view factor has been recently proposed as a new, simple measure to assess the possibility of having visual access to view the outdoor greenery in a daylit building space, based on the constructed lines of sight. However, detailed expressions to compute the factor is yet to be provided, and correlations with the input variables are yet to be determined. This study aims to address those issues, by combining the 'no-greenery line' with the 'no-sky line' to create the greenery-sky-view factor (GSVF), which is the fraction of the floor area, at the eye-level height, from which the greenery and the sky are visible. Mathematical expressions to compute the GSVF are described for various scenarios involving the window-to-wall ratio, the elevation of the greenery, and the distance between the window and the greenery. Computations of 10,000 random combinations are performed to find the optimum input variables leading to the largest GSVF and to determine correlations between the input and output. Recommendations for design practice are provided based on the computation results.

关键词： Greenery-sky-view factor no-sky line view quality daylit space random computation

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Heat transfer between occupied and unoccupied zone in large space building with floor-level side wall air-supply system

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建筑模拟（英文版） 2020年第6期13卷 1221-1233页

作者： Xinqi Yang Haidong Wang Chunxiao Su Xin Wang Yi Wang School of Environment and Architecture University of Shanghai for Science and Technology Shanghai 200093 China Advanced Study Program National Center for Atmospheric Research Boulder CO USA Research Applications Laboratory National Center for Atmospheric Research Boulder CO USA

The air supply terminal located at the floor level attached to side-wall is widely used in large space buildings, leading to potential energy saving as well as significant vertical thermal stratification. The cooling load calculation of such system is challenging, especially the calculation of the load gained from unoccupied zone. This paper adopts experiment and computational fluid dynamics (CFD) methods to study the heat transfer upward and downward across the stratified surface in large space building with floor-level side wall air-supply system. Five experimental cases with different heat source power and exhaust airflow ratios are performed to study their effects on the indoor thermal environment. We investigate the same cases in CFD and verify the result of vertical temperature distribution and cooling load components. As a critical parameter in evaluating the thermal stratification environment of large space building, the inter-zonal heat transfer coefficient Cb is emphatically discussed. By comparing the Cb value obtained through the two methods, the accuracy of the microscopic method is verified by the heat balance method. The results show that the Cb value is mainly affected by the zonal division and air distribution, but less prominently by exhaust airflow ratio and heat source in the occupied zone.

关键词： large space building thermal stratification CFD simulation floor level air supply inter-zonal heat transfer coefficient

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Preserving Javanese Culture through Retail Activities in Pasar Beringharjo, Yogyakarta

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Procedia - Social and Behavioral Sciences 2015年 184卷 206-213页

作者： Emmelia Tricia Herliana Architecture Program Study Universitas Atma Jaya Yogyakarta Yogyakarta Indonesia

Being the earliest traditional market in Yogyakarta, the market of Beringharjo, known as Pasar Beringharjo , has had cultural meaning since it was built in 1758. It has been standing near Keraton Nyayogyakarta Hadiningrat as a reflection of the Sultanate's power and autonomy. The purpose of this paper is to describe the diversity of social-activities taken place in the market through retail activities that embodied the philosophy of Javanese culture. The writings are the result of observing activities that create a distinctive atmosphere, and interviewing communities, which retain their tradition as cultural heritage. The method used for describing the topic is based on Norberg-Schultz's theory of genius loci . As a conclusion, preserving Pasar Beringharjo as a socio-cultural place will maintain Javanese culture, which in turn, will strengthen the existence of Pasar Beringharjo in Yogyakarta.

关键词： Cultural heritage Social interaction Pasar Beringharjo Javanese culture

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Effect of Community-Based Total sanitation program with diarrhea Incidents in toddler at communities near rivers

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Materials Today: Proceedings 2022年 63卷 S349-S353页

作者： Purnama Sari Indah, Fenita Cardiah, Tita Rahmat, Azwar Sulandjari, Kuswarini Andiyan, Andiyan Hendayani, Nenden Departement of Public Health STIKes Widya Dharma HusadaTangerang Banten 15417 Indonesia Interior Design School of Creative Industries Telkom University West Java Bandung 40257 Indonesia Madrasah Ibtidaiyah Teacher Education Study Program Faculty of Tarbiyah State Islamic University of Fatmawati Sukarno Bengkulu Bengkulu Bengkulu 38211 Indonesia Agribusiness Study Program Faculty of Agriculture Universitas Singaperbangsa Karawang West Java Karawang 41361 Indonesia Architecture Study Program Faculty of Science and Engineering Universitas Faletehan West Java Bandung 40266 Indonesia Digital Business Study Program Universitas Sali Al-Aitaam West Java Bandung 40287 Indonesia

The objective of this study was to determine the determinants between Community-Based Total Sanitation and the incidence of diarrhea in toddler at communities near rivers. This study used a quantitative approach with cross sectional design. The sample consisted of 76 mothers who have toddler with the sampling technique by accidental sampling. Primary data obtained directly from interviews using questionnaires and direct observation to respondents. The independent variable was Community-Based Total Sanitation which includes the behavior of open defecation, drinking water and food management, household waste management, and household waste water management. The results showed that only household wastewater management was significant with the incidence of diarrhea in toddlers (p value 0,0000;OR 5,2), while, open defecation (p value 0.118), drinking water and household food management (p value 1,000), household waste management (p value 0,979) was not related to the incidence of diarrhea in toddlers. Toddlers in households with poor wastewater treatment were 5,2 times more likely to have diarrhea. The conclusion is household wastewater management was significant with the incidence of diarrhea in toddlers, so that innovative efforts are needed so that the community improves their waste management. This is useful for preventing the occurrence of diarrhea in toddlers. © 2022

关键词： Sanitation

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Causing factors of declining trend on samosir panorusan goat population as endangered species in Samosir Island 2

Causing factors of declining trend on samosir panorusan goat...

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2nd International Conference on Agriculture, Environment and Food Security, AEFS 2018

作者： Ginting, Nurzainah Manik, A. Hasnudi Ginting, N. Aulia, D.N. Marpaung, B.O. Rahman, N.V. Hasanah, U. Animal Production Program Study Faculty of Agriculture Universitas Sumatera Utara Medan Indonesia Architecture Program Study Faculty of Engineering Universitas Sumatera Utara Indonesia Toba Lake and Sustainable Tourism Working Group Universitas Sumatera Utara Medan Indonesia

A declining trend of Samosir Panorusan goat population has been identified. As the Panorusan is an endemic and endangered species goat where the pure breed only 250,000 heads left, a research was conducted in order to find the cause factors for declining trend of population from April to June 2018 in Pangururan District, Samosir Regency. The method used was multiple linier regression analysis with variabel limitations such as goat feed, disease, breeders'experience, local culture and marketing rate of productive ewe. This research was conducted by asking directly to Panorusan goat breeders. The total of 55 goat breeders was divided into 2-3 breeders/villages. The results of this study indicated that the variable of local culture was significantly as a dominant factor that causing a declining trend of Samosir Panorusan goat population. © Published under licence by IOP Publishing Ltd.

关键词： Regression analysis

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Preliminary study on Acoustical Characteristics of Sago Midrib Composite 5

Preliminary study on Acoustical Characteristics of Sago Midr...

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5th International Symposium on Material, Mechatronics and Energy 2018, ISMME 2018

作者： Kusno, Asniawaty Asriani, Sherly Kamil, Kusno Jamala, Nurul Department of Architecture Faculty of Engineering Hasanuddin University Indonesia Study Program of Architecture Engineering Faculty Khairun University Indonesia Mechanical Engineering Department Engineering Faculty Universitas Muslim Indonesia Indonesia

This research is a preliminary study on the use of sago midrib as an acoustic material. This study aims to determine the sago as acoustic material by measuring the absorption coefficient using (impedance tube method) of 100 Hz-1.6 KHz frequencies. The results of measurement were analyzed and compared with common acoustic material available on market as reference. From the measurement of the sago midrib composite, absorption coefficient has fluctuated from low to high frequencies as the absorption coefficient of reference material is found to be more stable. © Published under licence by IOP Publishing Ltd.

关键词： Acoustic impedance

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Analysis of Daylight Distribution on Building Height and Space Depth. 5

Analysis of Daylight Distribution on Building Height and Spa...

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5th International Symposium on Material, Mechatronics and Energy 2018, ISMME 2018

作者： Jamala, Nurul Wika, Annajma Nurul Kusno, Asniawaty Department of Architecture Engineering Faculty Hasanuddin University Indonesia Study Program of Architecture Engineering Faculty Hasanuddin University Indonesia Department of Arch. Engineering Faculty Hasanuddin Univ. Indonesia

Lighting design is one of the priorities in designing buildings. Natural lighting can reduce energy consumption in buildings. Aesthetic levels are the basis of the planning concept, but need to pay attention to the concept of using natural lighting, in order to realize the energy-efficient building design. The purpose of the study was to determine how the level of illuminance affects the opening area, depth of space and height of the building. Quantitative research method is to analysis statistical data from measurements of illuminance levels in space. The results of the study concluded that the level of illuminance in the meeting room of the Center of Technology building in Hasanuddin University exceeded the illuminance standard. The extent of openings in the building envelope affects the illuminance level in space. Natural light distribution affects the height of the building's floor and the depth of space. Based on this conclusion, it is expected that in designing a building it is necessary to pay attention to the building facade, so that the distribution of natural light is not too high into the building and to avoid negative effects such as glare, high brightness and contrast. © Published under licence by IOP Publishing Ltd.

关键词： Energy utilization

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From clothing to culinary industries: creativity in the making of place

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CREATIVE INDUSTRIES JOURNAL 2020年第2期13卷 117-136页

作者： Hanan, Himasari Hemanto, Dwitya Inst Teknol Bandung Urban Design Study Program Sch Architecture Planning & Policy Dev Bandung Indonesia Creat Ind Urban Designer & Planner Bandung Indonesia

Creative clusters in many Western and Asian cities are predominantly established through policy-making and the involvement of government and private institutions. This paper investigates another way creative industries emerge, whereby individual initiatives of creative young people transform a colonial residential quarter into creative clusters. The creativity of young people has brought life and diversity to a mono-functional urban area by seizing new opportunities for small-scale business practices. The paper is based on a field survey and mapping of 80 clothing and culinary industries at Trunojoyo quarter in Bandung, Indonesia, that contributed to the nomination of Bandung as UNESCO City of Design in 2015. The young people of Bandung exhibit tactical strategies in the emergence of creative clusters and exercise informal processes and social networks as catalysts for growing creative industries. They reveal how youthful energy and creativity within everyday life brings about something that is rational and practical in creating an experiential place and making an historical quarter into a place of high economic performance.

关键词： Bandung creative cluster clothing industries culinary industries placemaking social networks young people

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Revisiting the role of international climate finance (ICF) towards achieving the nationally determined contribution (NDC) target: A case study of the Indonesian energy sector

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ENVIRONMENTAL SCIENCE & POLICY 2022年第0期131卷 188-195页

作者： Suroso, Djoko Santoso Abi Setiawan, Budhi Pradono, P. Iskandar, Zahara Sitta Hastari, Mulia Asri Bandung Inst Technol Climate Change Ctr Bandung Indonesia Bandung Inst Technol Sch Architecture Planning & Policy Dev Bandung Indonesia Univ Sriwijaya Fac Engn Geol Engn Study Program Palembang Indonesia

Climate change has impacted development progress and increased global inequality. Therefore, all emitters, both developed and developing countries, must implement climate change mitigation and adaptation actions. Indonesia is one of the developing countries that signed the Paris Agreement. In its NDC document, Indonesia has pledged to reduce greenhouse gases emission by 29% using domestic resources (unconditional) and 41% with international support (conditional) from the business as usual (BAU) scenario by 2030. This commitment gives Indonesia the right to take advantage of various types of support, including ICF opportunities offered by the ADB through the non-UNFCCC financial scheme and the Global Green Growth Institute through the UNFCCC financial mechanism. This paper explores to what extent ICF supports the achievement of Indonesia's Nationally Determined Contribution (NDC) target. The study uses qualitative analysis to provide a general overview of ICF in Indonesia, its climate finance strategies, and the case study of the energy sector. The study finds that ICF in Indonesia continues to develop, albeit with many limitations. Several ICF channels could be utilized more optimally such as, loan and grant instruments. Indonesia cannot rely solely on international support to meet its enormous climate finance needs;it must develop innovative financing through various instruments, such as green sukuk. ICF also plays a role in facilitating the energy transition from coal-based to renewable energy sources and increasing energy efficiency.

关键词： Climate change Innovative Financing Energy Transition

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Simulation of effective volume increasement inside oxidation ditch reactor 3

Simulation of effective volume increasement inside oxidation...

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3rd Annual Applied Science and Engineering Conference (AASEC)

作者： Hadisoebroto, Rositayanti Bindar, Yazid Notodarmojo, Suprihanto Univ Trisakti Fac Landscape Architecture & Environm Technol Environm Engn Dept Jl Kyai Tapa 1 Grogol Jakarta Barat Indonesia ITB Chem Engn Study Program Fac Ind Technol Bandung Indonesia ITB Environm Engn Study Program Fac Civil & Environm Engn Bandung Indonesia

Oxidation ditch reactor is wastewater treatment unit that based on activated sludge process. Water flow characteristic inside reactor is either completely-mixed reactor or plug flow reactor. Water flow characterization plays important role in wastewater treatment process. To ensure the biological process going well, the water flow in reactor must be completely mixed type. Characterization study of water flow in reactor consume time thus financial, so the simulation using CFD (Computational Fluid Dynamics) becomes a good solution. Based on the calibrated model, the CFD simulation was generate to define the water flow characteristic of the oxidation ditch reactor in longitudinal section. The simulation was conducted using VoF (Volume of Fluid) scheme, an open surface model in unsteady flow with k-epsilon turbulence model. The simulation result shows that water flow inside the oxidation ditch reactor was plug flow. The role of aeration system is to increase water flow to be more homogen, indicated by higher effective volume inside the reactor. The simulation result shows that the aerator could increase effective volume inside the reactor from 32,94% into 55,5%. The higher effective volume means dead zone inside the reactor is reduced.

关键词： Activated sludge process

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