bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of different biodiesel fuels on the PCCI-DI combustion concept for constant speed genset application
Authors: Kinikar Hemant A , Kanasepatil A B , Thipse S S 
Published: July 2022

Abstract
Homogenous charge compression ignition (HCCI) is a technology for concurrently reducing nitrogen oxides (NOx) and particulate matters (PM) emissions. Since, the pure HCCI lags in control over combustion phasing, Pre-mixed charge compression ignition (PCCI) method is proposed. To achieve partial homogeneity in PCCI combustion, the air is pre-injected with fuel. The main injection is required for the combination to take place. This paper investigates the impact of using the varying percentages and types of bio-diesels for the constant speed genset application engine. The paper first discus the effect of various ratios of diesel and biodiesel mixtures on the performance parameters like engine power, specific fuel consumption (sfc) and the break thermal efficiency. These effects are caused by the combustion happening inside the combustion chamber which can be seen in pressure, temperature and heat release curves. The result of the simulation finally discusses the formation of NOx and PM emissions during the combustion. These results also provide guidelines for actual testing of the engine with bio-diesel.
Design and fabrication of a partial flow dilution tunnel for particulate mass sampling in an ethanol blended CI engine
Authors: Kumar Atul , Sahu Tomesh Kumar , Shukla Pravesh Chandra 
Published: July 2022

Abstract
Diesel engine is mostly preferred engine especially for heavy duty work, as it delivers high efficiency, durability and low operating cost. Oxides of nitrogen (NOx) and particulate matter (PM) are the main emission components emitted from these diesel engines. Alcohols or biodiesels blending with mineral diesel are known to reduce the NOx and PM emissions. Ethanol fuel contains 35% (m/m) of oxygen, which helps to minimise the smoke and PM emissions. The primary objective of this work is to in-house design and fabricate a partial flow dilution tunnel for PM sampling on substrates. Ethanol blends (E05 and E10; v/v) were tested for Particulate matter collection for a twin cylinder CRDI Compression Ignition Engine. Ethanol blends showed 33% reduction in PM emission compared to mineral diesel.
Exploring the state of solar photovoltaic decentralization in Ghana: trends and success factors
Authors: Sackey David M , Owusu-Manu De-Graft , Acakpovi Amevi , Appiah Frank K , Edwards David J , Hosseini Reza M 
Published: July 2022

Abstract
This research explores the trends of photovoltaic (PV) decentralization in Ghana and provides an updated illuminating insight into the sector. A literature review was carried out to understand and map out the trends, risks, and success factors. Additionally, time-series analysis was used to explore the installation trends from 2013 to 2019. A one-sample t-test was used to test the significance of each of the underlying indicators. The study identifies 2015 and 2018 as the years with the highest PV installations. On regional distribution, the research identified Central (63.25%), Greater Accra (26.44%), and Upper East (3.99%) as areas with the highest cumulative rate of a PV installation, respectively. This research raises awareness on the emerging perspectives on PV investment risk decisions and success criteria in Ghana. Considerations for potential investment opportunities and the stage of PV installations are expounded. It brings to light the geographical spread of installation that will aid critical policy decisions. Findings would be invaluable in making profound changes in the state’s policy formulation around PV. The study provides a sound basis for further research, to be directed towards complementing this work by focusing on the social impacts and further engagement of end-users with solar PV.
Techno-Economic Assessment of Grid Connected Solar PV/Wind hybrid System
Authors: Sulley Mustapha , Acakpovi Amevi , Adjei Patrick , Sackey David M. , Offei Felix , Afonope Maxwell , Kofi Daniel , Tay Godfred 
Published: July 2022

Abstract
Wind and Solar PV energy as alternative energy supplies to the traditional fossil fuel have been a subject of study for researchers at various fora including climate change summits. However, the technical and economic feasibility of wind and solar projects involve a lot of complexity and depends mostly on geographical location and availability of resources. To address the constraints and factors affecting wind and solar PV systems, this paper aims to undertake a techno-economic feasibility assessment of a grid connected solar PV/Wind hybrid system capable of meeting a typical commercial load, located in Kumasi, Ghana. To achieve the purpose of this study an energy audit has been undertaken to establish the load demand of the facility. Again, RETSCREEN software was used to design and simulate the proposed hybrid system in order to analyse the technical, economic and environmental implications of the system. Findings show that, there is a high potential for providing commercial scale energy consumption in most months in the year, and there is extra energy available to be sold to the grid, generating considerable income. Though the system has a high levelized cost of energy (LCOE) as compared to the existing grid tariff, the study adds significantly to the national objective to reduce its dependency on fossil fuels while meeting local energy requirement.
Economic-environmental impacts on reduction of energy consumption in technical high schools during the COVID-19 pandemic: case of Manzanillo, Mexico
Authors: Cuevas-Rodríguez V D , Rodríguez-Torres G M , Morales-Máximo M , López-Sosa L B 
Published: July 2022

Abstract
A study is presented on the economic and environmental impacts, due to the reduction of electricity consumption in a Technical High School in Manzanillo, Mexico, during the COVID-19 pandemic, as well as the impacts generated by the reduction of student mobility. This research shows an analysis of the reduction of electrical energy consumption, the reduction of monthly economic costs and CO2 emissions in the studied institution, these impacts on student mobility during confinement between November 2019 and October 2021 are also analyzed. Results show electrical energy savings of approximately 60MWh during this period, about 34 TnCO2 and an economic saving of 8654 USD. It has also estimated an economic saving in student mobility of approximately 312,840 USD and a reduction in emissions of the order of 64 TnCO2. This research also suggests the implementation of technologies that use renewable energy sources as a strategy in the face of this health emergency and contributes to raising future scenarios for sustainable energy planning.
Evaluation of the Audial Comfort of the Mosque on the Cross-City Route: Al-Ghani Mosque Ciamis
Authors: Gumelar R , Ramadhan T , Maknun J 
Published: July 2022

Abstract
Mosques are places of worship for Muslims, there are various factors for mosques so that worship activities can run smoothly and solemnly, one of which is audial comfort which is very important in a place of worship. Some mosques are located in environments with high noise levels which affect the quality of the audial comfort in the mosque. This case study examines the audial comfort problem in the mosque which is on the edge of a cross-city road. The purpose of this study was to evaluate the audial comfort of the Al-Ghani Mosque which is located on the edge of the city lane and find solutions to reduce the noise impact by high traffic of vehicles. This study uses a case study method with a quantitative descriptive approach that aims to evaluate the audial comfort of a mosque. This study conducted data through field measurement. Noisetools.net and IBANA Calc-Software were used to analyse noise level of surrounding and indoor buildings. Indonesian National Standard (SNI) was used to judge the noise level quality. The results of this study indicate a high level of noise in the mosque and not reach the standard. Barrier and building material design intervened to achieve the standard target through simulation. This study provides an overview of how the mosque should be built by considering various factors, especially audial comfort.
Strengthening Sustainable Context of Water Management in Educational Building Universitas Indonesia
Authors: Hidayat F , Dewi O C 
Published: July 2022

Abstract
This paper aims to strengthen the sustainability related to the water management system in an educational building, an integrated teaching and laboratory building in Universitas Indonesia. It provides recommendations to improve the water management system in the building in achieving the sustainable aspects of the local context. Water needs continuously increase due to population growth and rapid development, which require good water management. Water management is an activity in controlling water resources to use the water effectively and efficiently by minimizing damage to the environment and nature. Water is a natural resource that is very important for the survival of living things, so water for sustainable development should achieve sustainable access. Include sufficient quantities of water, of acceptable quality, at affordable prices to meet the needs of human society while maintaining the integrity of the hydrological cycle and the associated ecosystems. This paper used qualitative approaches carried out by collecting data through interviews, field observations and documents collection. The result of this study indicated that there are potentials to improve water management in the building. Optimizing the use of natural resources that exist in the building environment can strengthen the water management performance towards sustainability.
Review on Appropriateness of Urban Heat Island Mitigation Technologies at Several Climates Condition
Authors: Apritasari Y D , Triyadi S , Wonorahardjo S , Indraprastha A 
Published: July 2022

Abstract
Urban development causes changes in urban land cover and use as well as the thermal environment, which is indicated by increasing air temperature. As reported by many researchers, the physical aspect of urban areas plays an important role in the intensity of urban heat islands. This study examines urban heat island mitigation technology in urban areas in big cities in various countries. Identification of UHI mitigation technology consists of the role of geometry and building materials. We discuss the role of factors in any spatial pattern, shape, and density condition. The most studied geometric aspects are density, H/W ratio (urban canyon), and orientation. While the most studied material factors are pavements, roofs, facades, soft-scape materials in gardens, and vegetation. We confirm that urban geometric aspects affect the rate of solar radiation gain and wind effects. In comparison, material elements affect the absorption of solar radiation and the degree of reflection. This coupling factor mainly affects the temperature intensity of urban areas.
Analysis of Natural Lighting and Visual Comfort Multipurpose Hall Building Using Software DIALux Evo 10.0 Case Study: Multipurpose Hall Building of Imbanagara Raya Ciamis Village Chief’s Office, West Java
Authors: Maulana A I , Kusuma Y 
Published: July 2022

Abstract
The multipurpose hall is a multifunctional place, this building is usually used to fulfil public/public activities such as meeting or as an indoor sports room. To carry out these activities, of course, it is necessary to have comfortable conditions so that the activities in them can run well, one form of comfort is the availability of natural lighting in the room. In addition to saving energy expended on buildings, natural lighting aims to provide visual comfort for the people inside. In order to get optimal lighting, it must meet the applicable standards and have been regulated in the Indonesian National Standard (SNI). This study examines the availability and feasibility of natural lighting and the level of visual comfort in the Multipurpose Hall of the Imbanagara Raya Ciamis Village Head Office. The research method used is a quantitative method obtained from the help of the Dialux Evo 10.0 simulation software. The data obtained will be adjusted to the lighting standards from SNI. After doing the synthesis, it is known that the Multipurpose Hall building lacks natural lighting, therefore a recommendation will be given in the form of using Skylights, so that the building gets natural lighting in accordance with the Indonesian National Standard (SNI).
The Investigation of Natural Light Level and Distribution Based on Opening Orientation (Case Studies: Laboratory in Educational Building)
Authors: Yuliana Y , Dewi O C 
Published: July 2022

AbstractThis research investigates the level and distribution of natural lighting based on the orientation of the openings in the laboratory room in the educational building at a university in Depok, West Java, Indonesia. The building was built using a green building approach. This building has several functions, two of which are the Basic Chemistry Lab and Biomedical Lab, which are located on the 8th floor of the educational building. This study addresses the questions, which laboratory room has the highest level of natural light in terms of the orientation of its openings? How is the distribution of natural lighting in these two laboratory rooms? On-site measurement was conducted to determine the natural light levels in laboratory rooms and building performance simulation software was used to investigate the distribution of natural lighting throughout the room. The results show that the level of natural lighting in the Basic Chemistry Lab (openings on the north side) and in the Biomedical Lab (openings on the south side) is similar, depends on the time and the sun position. The distribution of natural lighting in both laboratory rooms is not evenly distributed. To meet lighting needs, it is therefore the use of the distribution of natural light in the two rooms that needs to be adjusted.
BIM Utilization in Improving Energy Efficiency Performance on Architectural Design Process: Challenges and Opportunities
Authors: Primasetra Anjar , Larasati Dewi , Wonorahardjo Surjamanto 
Published: July 2022

Abstract
BIM utilization for energy simulation efficiency is increasing in Indonesia. BIM itself is one of the methods for carrying out building energy efficiency because it has dimensional features that can create collaborative work processes efficiently. This paper aims to describe BIM and building energy workflows in the design process and see the trend of BIM utilization in Indonesia, especially in the architectural design process. The methodology of this paper is a survey by online questionnaire for BIM stakeholders to make an overview of to what extent construction industry stakeholders have utilized BIM in Indonesia, especially in the design phase especially in building energy simulation. The BIM workflow that is integrated into building energy calculations can make the energy-oriented building design process. In addition, it can provide exciting and informative diagrams for the calculation of embodied energy will make it easier to understand the building energy by building construction stakeholders. In the final analysis of this paper, which is the hypothesis model of problem and solution of BIM utilization in Indonesia, there are 4 main problems and solutions according to the analysis of the questionnaire result: Flexibility and Collaboration, Technical Skill Problem and Training, BIM Management Data, and Low-Cost BIM. BIM utilization in Indonesia is still limited, especially in its use to analyze and mitigate building energy.
Implementation of SDGs Target 11.1 in Metropolitan Areas of West Java Indonesia
Authors: Vitriana A 
Published: July 2022

Abstract
Ensure access for all to adequate, safe, and affordable housing and basic services is one of the targets for achieving SDGs goal 11, which should be realized by 2030. This study aims to examine the achievement of SDGs target 11.1 in two national metropolitan areas located in West Java, Indonesia, namely the Bodebekjur Urban Area and the Greater Bandung Urban Area. This study used secondary data from the Indonesian Central Bureau of Statistics, then processed and analysed through a descriptive-quantitative approach. Furthermore, the data compared to the sectoral target of housing adequacy in the National Medium-Term Development Plan 2020-2024 as the national tools in achieving the SDGs. Based on the 2016-2020 time-series data, the results showed that the Bodebekjur urban area on average had higher achievements of national SDGs target 11.1 rather than Greater Bandung urban areas. In addition, the lowest achievement indicator in both urban areas that should be considered is the access to safe drinking water. Other indicators that need concern in achieving national targets of SDGs target 11.1 in the Greater Bandung urban area are sufficient living areas and access to sanitation.
Providing Low-barrier Addiction Treatment Via a Telemedicine Consultation Service During the COVID-19 Pandemic in Los Angeles, County: An Assessment 1 Year Later
Authors: Kennedy Amy J. , George James S. , Rossetti Gina , Brown Christopher O. , Ragins Kyle , Dadiomov David , Trotzky-Sirr Rebecca , Sanchez Gloria , Llamas Herman , Hurley Brian 
Published: July 2022

Background
Los Angeles County Department of Health Services provides medical care to a diverse group of patients residing in underresourced communities. To improve patients' access to addiction medications during the COVID-19 pandemic, Los Angeles County Department of Health Services established a low-barrier telephone service for DHS providers in March 2020, staffed by DATA-2000–waivered providers experienced with prescribing addiction medications. This study describes the patient population and medications prescribed through this service during its initial 12 months.

Methods
We performed a retrospective evaluation of a provider-entered call registry for the telephone consult line. Information was collected between March 31, 2020, and March 30, 2021. The registry includes information related to patient demographics, the reason for visit, and which addiction medications were prescribed. We conducted descriptive statistics in each of these domains.

Results
During the study period, 11 providers on the MAT telephone service logged 713 calls. These calls represented a total of 557 unique patients (mean age of 40 years, 75% male, 41% Latino, 49% experiencing homelessness). Most patients either had Medicaid insurance (77%) or were uninsured (20%). The most prescribed addiction medication was buprenorphine-naloxone (90%), followed by nicotine replacement therapy (5.3%), naltrexone (4.2%), and buprenorphine monotherapy (1.8%).

Conclusion
A telephone addiction medication service is feasible to deliver low-barrier medications to treat addiction in underresourced communities, especially to individuals experiencing homelessness. This can mitigate but does not eliminate disparities in access to addiction medications for communities of color.
Public Insurance Payment Does Not Compensate Hospital Cost for Care of Long-Bone Fractures Requiring Additional Surgery to Promote Union
Authors: Roddy Erika , von Kaeppler Ericka P. , Chan Matthew C. , Shearer David W. , Kandemir Utku , Morshed Saam 
Published: July 2022

Objectives:
To quantify the total hospital costs associated with the treatment of lower extremity long-bone fracture aseptic and septic unhealed fracture, to determine if insurance adequately covers these costs, and to examine whether insurance type correlates with barriers to accessing care.

Design:
Retrospective cohort study.

Setting:
Academic Level II trauma center.

Patients:
All patients undergoing operative treatment of OTA/AO classification 31, 32, 33, 41, 42, and 43 fractures between 2012 and 2020 at a single Level II trauma center with minimum of 1-year follow-up.

Main Outcome Measures:
The primary outcome was the total cost of treatment for all hospital-based episodes of care. Distance traveled from primary residence was measured as a surrogate for barriers to care.

Results:
One hundred seventeen patients with uncomplicated fracture healing, 82 with aseptic unhealed fracture, and 44 with septic unhealed fracture were included in the final cohort. The median cost of treatment for treatment of septic unhealed fracture was $148,318 [interquartile range(IQR) 87,241–256,928], $45,230 (IQR 31,510–68,030) for treatment of aseptic unhealed fracture, and $33,991 (IQR 25,609–54,590) for uncomplicated fracture healing. The hospital made a profit on all patients with commercial insurance, but lost money on all patients with public insurance. Among patients with unhealed fracture, those with public insurance traveled 4 times further for their care compared with patients with commercial insurance (P = 0.004).

Conclusions:
Septic unhealed fracture of lower extremity long-bone fractures is an outsized burden on the health care system. Public insurance for both septic and aseptic unhealed fracture does not cover hospital costs. The increased distances traveled by our Medi-Cal and Medicare population may reflect the economic disincentive for local hospitals to care for publicly insured patients with unhealed fractures.

Level of Evidence:
Economic Level V. See Instructions for Authors for a complete description of levels of evidence.
Operative Fixation of Extra-articular Scapula Body Fracture Through a Modified Judet Approach
Authors: Konda Sanjit R. , Solasz Sara Jo , Ganta Abhishek 
Published: July 2022

Summary:
We present the case of a 53-year-old male laborer who slipped and fell on ice and had acute right shoulder pain. Plain radiographs and a computed tomography scan of the scapula were obtained that demonstrated a comminuted and displaced extra-articular scapula body fracture with approximately 2 cm of medialization of the glenoid. The anatomy, examination, diagnosis, and surgical approach options are reviewed. In this case, open reduction and internal fixation of the scapula is performed through a modified Judet approach. At the 3-month postoperative visit, radiographs demonstrated a healed scapula fracture. The patient was allowed to return to work as a laborer. A modified Judet approach can be performed for surgical fixation of comminuted and displaced extra-articular scapula body fractures with excellent clinical results.
Repair of a Femoral Head Fracture Dislocation With an Associated Posterior Wall Acetabular Fracture (Pipkin 4) via a Kocher–Langenbeck Approach
Authors: Konda Sanjit R. , Solasz Sara Jo , Pean Christian Alexander , Lowe Dylan T. , Ganta Abhishek 
Published: July 2022

Summary:
A case of a 27-year-old man with a right-sided largely infra-foveal femoral head fracture dislocation with posterior wall acetabular fracture repaired via a Kocher–Langenbeck approach is presented. This is an atypical approach for fixation of the femoral head and acetabulum used because of the size and displacement of both the posterior wall fracture and the femoral head fracture. Indications for fixation of both the femoral head and the acetabulum include a displaced acetabular fracture with: (1) a fracture of the weight-bearing portion of the femoral head and/or (2) a fracture of the femoral head that engages the anterior or posterior wall. Overall, midterm outcomes are expected to be excellent to good if anatomic reduction and a concentrically stable hip joint is restored.