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Measurement of key performance indicator Green Supply Chain Management (GSCM) in palm industry with green SCOR model

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Materials Today: Proceedings 2022年 63卷 S326-S332页

作者： Rosyidah, Masayu Khoirunnisa, Ninin Rofiatin, Umi Asnah, Asnah Andiyan, Andiyan Sari, Dyana Industrial Engineering Study Program Universitas Muhammadiyah South Sumatra Palembang 30263 Indonesia Agribusiness Study Program Faculty of Agriculture University of Tribhuwana Tunggadewi East Java Malang 65144 Indonesia Master of Agricultural Economics Postgraduate School of University of Tribhuwana Tunggadewi East Java Malang 65144 Indonesia Architecture Study Program Faculty of Science and Engineering Universitas Faletehan West Java Bandung 40266 Indonesia

SCOR (Supply Chain Operations Reference) model is a tool for diagnosing Supply Chain Management (SCM) that allows users to understand all processes in a business organization. This study aimed to analyze activities related to Green Supply Chain Management (GSCM), especially in the palm oil sector, and to determine the performance of Green Supply Chain Management (GSCM) at PT. Sutopo Lestari Jaya using the green score model. The results showed that the highest Green Objectives (GO) weight in environmentally friendly garden management was located on protected forest land used as plantation land by 38.82%, while waste minimization was found in Crude palm oil water content of 48%. Meanwhile, in minimizing and handling greenhouse gas emissions, the highest weight is found in the amount of fuel used in Fresh Fruit Bunch (FFB) shipments of 54.07%. For plantation management and palm oil management mills, the highest weight is in the percentage of water use per ton of FFB in PPKS 60.7%, while in waste management, the highest percentage lies in the standardized wastewater Biological Oxygen Demand (BOD) of 38.8%. In maximizing the use of new and renewable energy, the highest weight lies in renewable energy per tonne of FFB and the use of solid waste (empty shells and shells) as a substitute for fossil fuels of 45.5% each. © 2022

关键词： Palm oil

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On the average horizontal illuminance in rooms with one or two point light sources

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ARCHITECTURAL SCIENCE REVIEW 2024年第2期67卷 120-131页

作者： Mangkuto, Rizki A. Jamala, Nurul Paramita, Beta Inst Teknol Bandung Fac Ind Technol Bldg Phys Res Grp Bandung Indonesia Hasanuddin Univ Fac Engn Dept Architecture Gowa Indonesia Univ Pendidikan Indonesia Fac Technol & Vocat Educ Architecture Study Program Bandung Indonesia Inst Teknol Bandung Fac Ind Technol Bldg Phys Res Grp Jl Ganesha 10 Labtek VI Bandung 40132 Indonesia

To ensure high-quality lighting in indoor spaces, many objective parameters have been suggested in building codes and standards all over the world. Despite the emergence of luminance-based metrics, the average horizontal illuminance (E-av) remains popular in practice. For the case of relatively small rooms with one or two point light sources, it is often intended to determine the point with horizontal illuminance equal to E-av. It is also intended to have the computation for various room scenarios, so that the outcome can be predicted using a simple model. This study, therefore, aims to propose a method to identify the location of point of E-av on horizontal plane in cuboid rooms with various sizes, with one or two point light sources, and to further verify the theoretical concept. To achieve the objective, scenarios and assumptions are described using mathematical tools, followed with verification using grid computations and Monte Carlo simulation of 10,000 random scenarios. Logarithmic models to predict E-av value and its representative location are proposed. The room length-to-width ratio is found more influential, compared to the source luminous intensity characteristics, in affecting the location of point of E-av.

关键词： Room lighting average horizontal illuminance point of average illuminance point light source room length-to-width ratio

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A bounding-surface-based cyclic "p-y plus M-θ" model for unified description of laterally loaded piles with different failure modes in clay

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CANADIAN GEOTECHNICAL JOURNAL 2024年第10期61卷 2104-2123页

作者： Hong, Yi Chen, Xuanyu Wang, Lizhong Wang, Lilin He, Ben Zhejiang Univ Coll Civil Engn & Architecture Shanghai Inst Adv Study Hangzhou 310058 Peoples R China Zhejiang Univ Coll Civil Engn & Architecture Hangzhou 310058 Peoples R China Zhejiang Univ Coll Civil Engn & Architecture Key Lab Offshore Geotech & Mat Zhejiang Prov Hangzhou 310058 Peoples R China Zhejiang Univ Ocean Coll Hundred Talents Program Zhoushan 316021 Peoples R China Zhejiang Univ Key Lab Offshore Geotech & Mat Zhejiang Prov Hangzhou Peoples R China

The increasing turbine sizes have necessitated monopiles in soft clay to have larger diameter and rigidity, from early design of flexible piles to recent semi-rigid piles, with future anticipating rigid piles. Existing few cyclic soil-pile interaction models are developed for flexible pile associated with full-flow failure (above the rotation point, RP), with little attention paid to semi-rigid and rigid piles involving rotational-shear failure (below RP). This study aims to unify the description of piles with varying rigidity by proposing a cyclic two-spring model, where lateral resistances above and below RP are described with cyclic p-y and M-theta springs, respectively. It naturally recovers to a cyclic p-y model for flexible piles. The cyclic p-y and M-theta formulations are developed within the bounding-surface plasticity framework, based on numerical results of cyclic soil-pile interaction concerning full-flow and rotational-shear mechanisms, respectively. These numerical analyses are performed using a cyclic plasticity clay model developed and implemented numerically in this study. The cyclic "p-y+M-theta" model quantitatively reproduces experimental results of cyclic shakedown and ratcheting for flexible, semi-rigid, and rigid piles. Ignorance of the M-theta spring could underestimate cyclic resistance of rigid piles by 25%, suggesting the model's merit in reducing conservatism for monopiles in feature designs.

关键词： lateral loaded pile cyclic "p-y plus M-theta" model failure mechanisms clay bounding surface plasticity theory

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Thermal Comfort of the Outdoor Transition Space in the Dean's Office Building 20

Thermal Comfort of the Outdoor Transition Space in the Dean'...

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20th Sustainable, Environment and architecture, SENVAR 2020

作者： Ramawangsa, Panji Anom Prihatiningrum, Atik Seftyarizki, Debby Architecture Program Study University of Bengkulu Bengkulu Indonesia

The increase in the transmission of the COVID-19 disease, creating an effort to prevent transmission by controlling total of space users in the Dean's Office Building, University of Bengkulu to avoid overcrowding users of space in buildings. The control has an impact on the increasing number of space users in the transition space of outdoor (terraces, hallways, corridors) in the eight Dean's Office Buildings. The thermal comfort of the outdoor transition space needs to be considered because the post-pandemic adaptation behavior causes the change in the function of the transition area as buffer between outdoor and indoor spaces, is currently becoming a waiting room for entering buildings with uncertain waiting times. In addition, University of Bengkulu is located in coastal area with air temperatures during the day between 30 °C- 34 °C and wind speed ranging from 0-2,2 m/s. The purpose of this research is to determine the perception of thermal comfort of space users in the transition space, Dean's Office Building, University of Bengkulu. Measurement data in the form of air temperature, air humidity, and wind speed at the peak of the dry month were carried out at 08.00-16.00 for 10 working days and interview data on the perception of thermal comfort of space users. Interview and measurement data will be inputted on the Ray-man measuring instrument to obtain the PET, PMV, SET values. © Published under licence by IOP Publishing Ltd.

关键词： Thermal comfort

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Review of peri-urban agriculture as a regional ecosystem service

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Geography and Sustainability 2023年第3期4卷 244-254页

作者： Setyardi Pratika Mulya Heru Purboyo Hidayat Putro Delik Hudalah Urban and Regional Planning Study Program School of ArchitecturePlanningand Policy DevelopmentBandung Institute of TechnologyBandung 40132Indonesia Department of Soil Science and Land Resources Faculty of AgricultureBogor Agricultural UniversityBogor 16680Indonesia

The peri-urban area possesses mixed characteristics of rural and urban areas,i.e.,agricultural,and built-up *** review explains various themes and concepts of peri-urban areas and the importance of peri-urban agriculture(PUA)as an ecosystem service(ES)for their surrounding *** methodological approach is a systematic literature search and explanatory review of books and journal *** focus of the discussion is as follows:(1)quantification of review results,(2)urbanization pressures,peri-urban,and governance,(3)two different concepts about the peri-urban area,(4)protection of PUA and their resilience,and(5)role of PUA in providing ESs to other *** review shows that PUA is more crucial in urban areas than in rural areas in terms of food supply,ecology and biodiversity preservation,disaster mitigation,and *** of the primary causes of PUA loss is massive urban expansion,which entails the conversion of agricultural land in peri-urban areas into built-up ***,we suggest that every country should develop a peri-urban management *** argue that sociocultural biases in PUA have resulted in many institutional constraints on peri-urban management being incorporated within existing political and regulatory frameworks,including planning practices and longstanding laws and regulations.

关键词： Farming Impact Regulation Urbanization Urban-rural interaction

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Preservation of the manifestation of Balinese cultural traditions in the current architecture of public buildings: a case study of the Mandala Agung building of the Puri Ahimsa resort in Mambal Village - Bali

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JOURNAL OF ARCHITECTURAL CONSERVATION 2021年第1-2期27卷 53-65页

作者： Suryono, Alwin Parahyangan Catholic Univ Fac Engn Architecture Study Program Bandung Indonesia

The Mandala Agung at Puri Ahimsa displays the concept of 'architecture being non-architectural' yet it remains based on Balinese culture. This paper reveals the forms of local traditions in the lay-out and preservation of these buildings in a qualitative-descriptive manner. The Balinese physical-social value system is revealed through sense-purpose-essence-awareness. The lay-out of Puri Ahimsa signifies Cosmic Balance through the harmonious relations between humans, God, and nature. Architecturally, Mandala Agung is a synthesis of the rice cone form and the openness of Balinese traditional pavilions (wantilan), applying the Cosmic Balance through space in forming harmonious relationships. Singling out the roof as the divine realm, the inner space is regarded as a human realm (Tri Loka concept). The semi-circular space with the doors in opposite directions signifies the balance of opposing forces. Natural balance and the Tri Hita Karana philosophy are maintained in the Puri Ahimsa lay-out. The shape and the openness of the wantilan are adapted to the Mandala Agung architecture, while the Nawa Sanga concept is adapted to the eight main pillars and the sky-light roof. Tri Hita Karana is maintained in the inner space, and the philosophy of Desa Kala Patra is concretised through its uniqueness for today's activities.

关键词： Culture human nature God conservation

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Urbanization pressure and farmers' attitudes: implications for agricultural sustainability

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ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY 2024年 1-34页

作者： Mulya, Setyardi Pratika Hudalah, Delik Bandung Inst Technol Sch Architecture Planning & Policy Dev Urban & Reg Planning Study Program Bandung 40132 Indonesia Bogor Agr Univ Fac Agr Dept Soil Sci & Land Resources Bogor 16680 Indonesia Bandung Inst Technol Res Ctr Infrastruct & Reg Dev Bandung 40132 Indonesia

Empirical evidence suggests that urbanization pressure impacts agricultural sustainability. This article examines the role of farm characteristics in shaping farmers' attitudes amidst urbanization pressure to converting their agricultural land. Multivalue Qualitative Comparative Analysis (mv-QCA) was employed to elucidate the relationship between farm characteristics and urbanization characteristics from the perspective of farmers. Data were obtained from questionnaire-based interviews with 165 farmers in urban, peri-urban, and rural areas representing various farmer types including owners, owner-cultivators, cultivators, tenants, and pledgers. The results show that 39% of farmers in peri-urban areas and 58% of farmland owners in urban areas exhibit a stronger inclination to sustain their land and farming activities. Furthermore, social, and economic motives are the strongest reasons for farmers to continue to engage in farming today. They have astutely recognized the distinct characteristics of their urban, peri-urban, and rural regions as a result of urbanization. These adaptive strategies include adjustments in planting schedules, utilizing artificial means to source water for agriculture, modifying grain prices and land valuations, decreasing cultivated land size, controlling pests, and seeking supplementary employment. Additionally, extrinsic factors, exemplified by agricultural policies, played a pivotal role in adapting and shaping their behavior (attitudes). The significant role of government in the ongoing development of agriculture in the present and future is crucial. For individual farmers, no matter how heavy the pressure of urbanization, their intrinsic motivation to maintain their land and agricultural activities will remain strong as long as their needs are met.

关键词： Agricultural productivity Agricultural sustainability Farmers' attitude Qualitative comparative analysis Urbanization pressure

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Understanding the attractiveness of types of historic districts in Bandung: implementing heritage conservation based on public perception

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JOURNAL OF ASIAN architecture AND BUILDING ENGINEERING 2024年

作者： Septianto, Eggi Poerbo, Heru Wibowo Firmansyah, Widjaja Martokusumo, Widjaja Inst Teknol Bandung Sch Architecture Planning & Policy Dev Architecture 10 Ganesha Rd Bandung 40132 Indonesia Inst Teknol Nasl Fac Architecture & Design Architecture Study Program Bandung Indonesia Inst Teknol Bandung Sch Architecture Planning & Policy Dev Architectural Design Res Grp Bandung Indonesia

Cultural heritage conceptually addresses the conservation of physical and non-physical dimensions. Heritage conservation generally intends to create pleasant spatial experiences and socio-culturally friendly living environments while accommodating contemporary needs. Conservation frameworks for protecting urban fabric driven by physical authenticity and expert judgment need to pay increased attention to public-based assessment experiences to improve people's perspectives on the quality of urban historic areas. The notions of inclusive conservation posit that community understanding is essential for appreciating historic urban areas due to various social, cultural, historical, and political conditions. According to public narratives and perspectives, this study describes the types of urban historic districts perceived as attractive. The investigation uses the qualitative method to analyze data from 170 participants obtained through an online questionnaire and content analysis methods with open, axial, and selective coding. The findings reveal that from the public perspective of environmental quality assessment, historic districts are categorized under three types according to attractiveness. Three types of historic areas are vibrant, relaxing, and dull districts. As such, the study emphasizes the importance of human sensory experience in urban planning and design and its consequences for urban heritage conservation. [GRAPHICS] .

关键词： Attractiveness urban heritage conservation urban historic districts public perception Bandung

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Echoes of Tradition: Virtual-Reality Media in Improving Spatial Space Experience 3D Virtual Tour of Kampung Adat Pulo Garut, West Java, Indonesia

Echoes of Tradition: Virtual-Reality Media in Improving Spat...

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STEM Education Conference (iSTEM-Ed), International

作者： M.F. Rahman A.Y. Permana I Susanti J. Akbardin K. Wijaya S. Handayani Architecture Study Program Faculty of Technology and Vocational Education Universitas Pendidikan Indonesia Bandung Indonesia Civil Engineering Study Program Faculty of Technology and Vocational Education Universitas Pendidikan Indonesia Bandung Indonesia Architecture Study Program Faculty of Civil Engineering and Planning Universitas Kebangsaan Republik Indonesia Indonesia Bandung Indonesia Agro-industrial Education Study Program Faculty of Technology and Vocational Education Universitas Pendidikan Indonesia Bandung Indonesia

ISBN: (数字)9798350365979

ISBN: (纸本)9798350365986

In the current digital era, virtual reality (VR) technology is rapidly expanding across various fields, including education and cultural preservation. This technology offers immersive opportunities to explore and experience architectural spaces, promising increased understanding and learning motivation. Despite being relatively new in Indonesia, the application of VR has shown significant potential for education and cultural preservation through the implementation of a 3D virtual tour in Kampung Adat Pulo Garut. Therefore, this research aimed to develop VR media to enhance users' spatial experience and preserve the cultural values of Kampung Adat Pulo Garut through interactive learning. The method used was Research and Development (R&D) through the Multimedia Development Life Cycle (MDLC) model. The equipment used was LiDAR Scanner FJD Trion P1 Series, DJI Mavic Air 2S Drone, and Sony A6000 Camera. The method used included aerial and terrestrial mapping, 3D modeling, and the development of virtual environments through Unreal Engine. The developmental process included various stages, namely concept, design, material collection, compilation, testing, and distribution. The result showed an interactive 3D virtual tour of Kampung Adat Pulo Garut, called “Echoes of Tradition.” Unreal Engine was found to enable detailed visualization of traditional architecture and village environments with high accuracy and interactivity. The final product offered an immersive learning experience, enriching users' experience, and enabling digital preservation of cultural heritage. The next step, to get an overview of the research results, used a questionnaire as an instrument which was distributed to a total of 250 respondents. Furthermore, the potential implication of VR in education and cultural preservation was identified, guiding similar applications in the future. By improving accessibility and engagement in spatial and cultural learning, VR offered new avenues in education and cultu

关键词： Visualization Three-dimensional displays Education Virtual environments Media User experience Cultural differences

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Comprehensive Geometric Modeling of the Sibayak Geothermal Field

Comprehensive Geometric Modeling of the Sibayak Geothermal F...

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2024 International Conference on Applied Sciences and Material Applications, ICASMA 2024

作者： Qarinur, M. Silitonga, E.M.R. Alvan, S. Ogata, S. Kinoshita, N. Yasuhara, H. Civil Engineering Study Program Universitas Negeri Medan Medan20221 Indonesia Construction Management Study Program Universitas Negeri Medan Medan20221 Indonesia Division of Global Architecture Graduate School of Engineering Osaka University Osaka565-0871 Japan Department of Civil and Environmental Engineering Ehime University Matsuyama790-8577 Japan Department of Urban Management Kyoto University Kyoto615-8540 Japan

Geothermal reservoirs are significant sources of renewable energy. Accurate geometric modeling of these reservoirs is essential for understanding the distribution of heat and fluid dynamics within them. This study aims to develop a geometric model of the Sibayak geothermal field using borehole data. Borehole data provide detailed geological information, which is crucial for constructing a realistic geometric model. The methodology of this research involves several key steps: the collection of borehole data from the Sibayak geothermal field, the construction of a 3D geometric model of the reservoir using COMSOL Multiphysics based on the borehole data, and the validation of the model through comparison with field data and previous research findings. The results indicate that the developed geometric model successfully identifies zones with high geothermal potential and provides an accurate depiction of the reservoir's boundaries and characteristics. Modeling the geometry of geothermal reservoirs using borehole data offers profound insights into the internal dynamics of the reservoir and can serve as a valuable tool for planning and optimizing geothermal energy exploitation. © 2024 Institute of Physics Publishing. All rights reserved.

关键词： Geothermal fields

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