bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of an aerodynamic measurement system for wind turbines
Authors: Fredebohm Malte , Theron Johannes N. , Höning Leo , Weis Sanaz , Stoevesandt Bernhard , Wegner Anna , Denecke Nora , Rosemann Heiko , Huhn Matthias Leonhard 
Published: May 2023

Abstract
In this paper an aerodynamic measurement system is presented that can be installed as a retrofit on virtually any onshore turbine. The aerodynamic measurement system consists of pressure sensors embedded in thin glass-fiber shells, which are glued to the rotor blades. Additionally, an aerodynamic probe is attached to outboard side the shells with a thin flange. In this study the system was installed on an 8 MW offshore prototype turbine located in Bremerhaven. It was mounted at two sections of one of the rotor blades with 72 pressure sensors in total (18 sensors each on the pressure side and suction side, respectively). Additionally, at each section an aerodynamic probe with 5 sensors was installed in front of the leading edge to measure inflow speed and direction. Results were compared to CFD simulations.
Wind tunnel test of airfoil with erosion and leading edge protection
Authors: Bak C , Olsen A S , Forsting A M , Bjerge M H , Handberg M E , Shkalov H 
Published: May 2023

Abstract
This paper describes wind tunnel tests of a NACA 633 – 418 airfoil with erosion and leading edge protection. Measurements are carried out at high Reynolds number (Re = 5 million) representing modern wind turbines. Three examples of deviations from the perfect airfoil surface are shown. It is seen how the presence of a roughness mesh degrades the aerodynamics and that the presence of the mesh is more important than the actual topology of the mesh. That is also the case for the stall strips where a small strip influences the performance slightly less than a big stall strip, but the presence of the stall strip alone is influencing the performance significantly. Finally, a simulated leading edge protection (LEP), represented by a sheet of paper, can influence the performance significantly as the paper leads to a backward facing step. Furthermore, the measurements showed that correct mounting of LEP is important to avoid too big losses in aerodynamic performance. Investigating the impact of reduced airfoil performance for the rotor performance showed losses in annual energy production of between 0.3% and 4.0%. All in all the wind tunnel tests reflected that leading edge damages have a significant impact on the aerodynamic performance.
Design, construction and commissioning of the PandaX-30T liquid xenon management system
Authors: Wang Xiuli , Lei Zhuoqun , Ju Yonglin , Liu Jianglai , Zhou Ning , Chen Yu , Wang Zhou , Cui Xiangyi , Meng Yue , Zhao Li 
Published: May 2023

Abstract
The PandaX-30T is a proposed next-generation experiment to
study dark matter and neutrinos using a dual-phase time projection
chamber with ∼ 30 tons of liquid xenon. An innovative xenon
handling subsystem of the PandaX-30T, the First-X, is described in
this paper. The First-X is developed to handle liquid xenon safely
and efficiently, including liquefying and long-term storing xenon
without losses or contamination, and transferring cryogenic liquid
xenon between the storage module and the detector safely and
effectively without venting out. The storage module of the First-X
is five specially designed double-walled cylindrical vessels (Center
Tanks) equipped with three heat exchangers each for pressure and
temperature regulation. Each Center Tank is designed with a vacuum
and multi-layer insulation and a maximum allowable working pressure
of 7.1 MPa, allowing 6 tons of xenon to be stored at 165–178 K at
0.1–0.2 MPa in the liquid phase or up to 300 K and up to
6.95 MPa in the supercritical phase. High-pressure storage
(> 0.2 MPa) only occurs in case of long-term detector shutdown or
lack of nitrogen, ensuring no-loss storage of 6 tons of xenon in the
range 178–300 K. In this paper, the thermophysical performances of
the First-X and innovative scenario to conduct non-vented cryogen
transportation were experimentally conducted and reported using
liquid argon. The non-vented cryogenic liquid filling and
pump-assisted cryogenic liquid recovery have been conducted with
liquid argon at a mass flow rate of 1390 kg/h, corresponding to a
xenon mass flow rate of 2140 kg/h. Compared with the PandaX-4T, the
transportation of xenon between the detector and the storage module
is conducted in the liquid phase rather than in the gaseous phase,
and the filling rate (fill the detector) and the recovery rate
(recover xenon from the detector) are increased by approximately 50
times and 30 times, respectively.
Population and damage intensity of the yellow rice stem borer and its natural enemies in the jajar legowo rice planting system
Authors: Sholahuddin S , Wijayanti R , Supriyadi S , Sulistya A , Subagiya S , Haq A 
Published: May 2023

Abstract
Jajar legowo (Jarwo) is a rice planting system that is widely practiced by farmers, but information regarding its effects on pests and natural enemies is limited. This study aimed to identify how the Jarwo planting system affects the population and damage intensity of the yellow rice stem borer (Scirpophaga incertulas) and its predators. The research was conducted in Wonosari-Klaten, Central Java, during the dry season of 2020. The Jarwo 2:1 planting system was used in this study. The variables of the research were population of S. incertulas, its damage intensity, and its natural enemies. Observations by field inspection were carried out every week from 14 to 94 days after transplanting (DAT). The results showed that the population of egg clusters and damage intensity of the rice stem borer in the Jarwo planting system were lower than in the conventional planting system (control plot). However, this planting system did not affect the kinds of predators and parasitoids. The predators found were generalists, which were dominated by spiders, namely Atypena sp. (Araneae), Araneus sp. (Araneae), Lycosa sp. (Araneae), Plexippus sp. (Araneae), and Oxyopes sp. (Araneae), Paederus sp. (Coleoptera) was recorded as predatory insects. Meanwhile, the main egg parasitoid found was Telenomus sp. (Hymenoptera) with 31.2% parasitization.
Water availability identification of underground river in the Gunung Sewu karst area using inverse model
Authors: Daffaedra A H , Mawandha H G , Ersavan F , Setyawan C , Kesuma L M , Wijayanti Y 
Published: May 2023

Abstract
The karst area is identified in the Gunung Kidul Regency, the so-called Gunung Sewu karst area, as one of the Geopark areas in Indonesia. Gunungkidul Regency has had moderate to high yearly rainfall for the last ten years. However, this region has a problem with a surface water shortage. It is due to the characteristics of the karst, which allows rainwater to penetrate the geological layers accumulating in the certain noose yielding abundant underground water reserves. The purpose of this study is to assess the underground river water availability and the hydrological characteristics in the karst region using Inverse Modeling. Inverse Modeling is a method to identify the features of the underground river by adjusting the hydrological variables as an input and output discharge as a control. The FJ Mock Model as a surface hydrological model is used to characterize the Karst region’s underground river. There were five models in total to be simulated. The conditions under the Mock model show consistent results compared to the stepwise model in terms of low discharge conditions; Coefficient Correlation, RMSE, and R2 values obtain 0.637, 17.29, and 0.407, respectively. In this case, estimating the low flow conditions is more accurate than the high-rate flow conditions. The results are closer to the stepwise model without the infiltration variable involved.
Stakeholder engagement in irrigation water management: the case of Karanganyar Regency, Indonesia
Authors: Suminar Lintang , Werdiningtyas Ratri , Kusumastuti  , Rahayu Paramita 
Published: May 2023

Abstract
The increasing level of water demand leads to higher pressure in the water irrigation system due to environmental degradation in watersheds and irrigation canals. Irrigation water management requires the involvement of stakeholders, including the government and farmers, as the water user association. Stakeholders are expected to be able to carry out their respective roles and be engaged in solving problems of proper irrigation water management. This paper uses a qualitative approach to stakeholders’ roles, challenges, and opportunities in irrigation water management in Karanganyar Regency. It aims to understand stakeholder engagement in irrigation water management. The data were collected by observation and interviews with stakeholders such as national irrigation commissions, provinces, local governments, and water user associations. The results show that there has been a clear division of roles and responsibilities among the stakeholders included in the irrigation commission. However, it is found that there is an asynchronous regulation in implementing irrigation water management at the national, provincial, and local levels. The lack of human resources is another obstacle faced in irrigation water management in Karanganyar Regency.
Connecting student to the ecology: content knowledge for conservation education in Indonesia
Authors: Karyanto P , Oetomo D , Nuri TSK , Fudolla U , Hidayat N , Lhota S 
Published: May 2023

Abstract
One of the keys to meaningful environmental and conservation education depends on the design of appropriate content knowledge, enhancing the ecological literacy of the student. Here, we scrutinize essential content knowledge and develop subject-specific pedagogy for teaching ecology regarding high school conservation education. We stood on the qualitative research by employing the R & D methods according to the ADDIE design. We employed inductive techniques to gain essential ecological concepts and principles from related references. We identified fourteen ecological concepts and principles, namely population and community properties, biological interaction, keystone species, species with a large impact, energy flows, biogeochemical cycle, conservation ecology, diversity index measurement, factors affecting distribution and abundance, the linkage between genetic diversity and population persistency, fragmentation and population size, diversity and community stability, carrying capacity, and ecological succession as important content in ecology that is essential for conservation education. We developed the subject-specific pedagogy for teaching ecology and gained an effective result during its implementation on both the cognitive aspects and the behavioral intention. Our results clearly imply the importance of knowledge of essential concepts and principles in ecology in engendering sympathy towards nature and conservation.
Effect of mulching on soil loss and total N through erosion during upland rice planting season on latosol
Authors: Arifien Y , Sinurat J , Susdiyanti T 
Published: May 2023

Abstract
Erosion is a natural phenomenon in the form of erosion of the upper soil surface by the movement of water, therefore soil conservation actions are carried out, one of which is the provision of organic matter. This research was conducted on the Kemang Bogor latosol with a soil slope of 7, 9 and 14 percent which was given organic material in the form of mulch as much as 3 tons/ha and 6 tons/ha which was spread evenly over the soil surface, and included and mixed evenly into the soil. The results showed that the application of mulch and slope had a significant effect on soil loss and total N through erosion. Giving mulch can suppress erosion and spread over the soil surface more effectively. Applying mulch to soils with a slope of 7 and 9 percent can suppress erosion which can still be allowed, while on soils with a slope of 14 percent, it should be as much as 6 tons/ha.
The dynamic linkage among carbon emissions, energy consumption, and economic sustainability in the Asia Pacific
Authors: Rahmayani D , Sugiharti R R , Rahman Y A , Vikia Y M 
Published: May 2023

Abstract
Environmental degradation is caused by the high level of energy use, which becomes a major problem in the world. This research will investigate how energy consumption, economic growth, and population affect carbon emissions in the Asia Pacific region, with data from 15 countries spanning the 1988-2021 period. The energy consumption was measured by how much oil and coal were used. The research used panel Autoregressive Distributed Lag (ARDL) models to study carbon emissions, oil consumption, coal consumption, economic growth, and population. The study found that growth in coal consumption, oil consumption, and population has a positive significant effect on carbon emissions in the long term. Conversely, economic growth has a significant negative impact. Meanwhile, in the short term, both coal consumption and economic growth have a positive impact on increasing carbon emissions. The results of this study support the hypothesis that there is an Environmental Kuznets Curve (EKC). This paper suggests that increasing green investment and shifting from fossil-based to eco-friendly sectors would be beneficial. Second, the resilience of economic growth is important. The third way to preserve the environment is to control the rate of population growth.
Nature-Based solutions for landslide risk reduction: a critcal review of academic literature
Authors: Dewi Rika Kurnia , Wijayanti Pipit 
Published: May 2023

Abstract
Landslides are a widespread natural hazard that threatens the built and natural environment and increases the areas of deforestation. Landslides have an impact on human life, the impact can be reduced by reducing the risk of landslides, reducing the risk of landslides aims to reduce the number of people affected, deaths and economic losses. Forests and vegetation can provide a protective function against landslides consisting of hydrological and soil conditions, such as soil moisture, water infiltration, and others. This ability of vegetation is called nature based solutions. The 46 studies selected for this landslide nature-based solution were analyzed with a focus on an in-depth literature review. The articles were analyzed with three focus reviews, namely: 1) types of landslides, 2) solutions regarding landslide mitigation, and 3) landslide risks. The types of landslides discussed in this article are 73% shallow landslide types, 22% landslide types rotation and 5% flow landslide type. The risk in this article regarding hazards/threats is discussed at 57%, exposure around 21% and vulnerability around 22%. Landslide risk reduction solutions in the articles reviewed, as many as 44% discussed nature-based solutions, 30% about other solutions, and 30% there were no solutions in reducing landslide risk. In the publication of 46 articles, nature-based solution approaches that are widely mentioned are environmental engineering, soil bioengineering and protected forests. The nature-based solution in this research shows that vegetation is the main solution in disaster mitigation measures.
Assessment of cultivation techniques and agroforestry systems on cinnamon (case study in Jaya Village, Tidore Island)
Authors: Salatalohy A. , Ryadin A.R. 
Published: May 2023

Abstract
The cultivation technique attempts to modify the growing environment to be suitable for plant growth to achieve maximum and sustainable yields. At the same time, agroforestry design aims to improve the existing system by providing food agriculture directions based on physical, economic, and socio-cultural conditions. The method of the established system relates to pre-diagnosis and diagnostic activities that aim to find problems that exist in the system, followed by technological intervention to improve the system and determine the best agroforestry system in critical land conditions. The descriptive method was used in this research by identifying existing agroforestry systems. This study found three agroforestry systems: agrisilviculture, silvopasture, and agrosilvopasture. Cropping patterns generally use a randomly mixed. Cultivation techniques are still not optimal because they still rely on traditional gardens. Land suitability evaluation shows that, in general, the land suitability assessment for woody plants and annual crops is categorized as moderately suitable (S2). Agroforestry design on land cinnamon-based agroforestry is recommended for woody plant species; non-MPT species are more adaptable if grown on ridges; MPTs and annual crops are more directed at slopes and valleys, while secondary crops are better planted in the valleys.
The impact of CO2 emission on health expenditure: lesson learned from ASEAN five countries
Authors: Hamid Edy S , Wibowo Bintang S 
Published: May 2023

Abstract
This study is motivated by the issue of the Green Economy regime. The Green Economy regime promotes economic development while maintaining good environmental stability without destroying nature. Increased CO2 emissions, especially in the 5 ASEAN countries, will impact the surrounding environment, leading to worsening health levels in the long term. This poor level of health resulting from CO2 emissions will increase spending on health. The study aims to empirically analyse and see how the condition of CO2 carbon emissions will affect the health expenditure sector. The analysis of this study is by analysing Time Series data sourced from several websites such as the World Bank and also data from the Ministry of Finance. The methodology uses multiple linear regression models, or the Ordinary Least Square (OLS) method, to see how the effect of CO2 carbon emissions on health expenditure. The methodology also uses Panel Data Regression consisting of the Common Effect Model, Fixed Effect Model, and Random Effect Model. The variables used are CO2 emission as an independent variable and current health expenditure per capita as the dependent variable. The results obtained from this study are that increasing CO2 carbon emissions lead to an increase in health expenditures, along with a decrease in the quality of the surrounding environment and will have an impact on public health so that the relationship between CO2 carbon emissions and health expenditures has a positive and significant relationship.
Strengthening society preparedness as a strategy for disaster risk reduction in Indonesia
Authors: Nuryana Mu’man , Erwinsyah Rudy G. , Suradi Suradi 
Published: May 2023

Abstract
Natural disasters in Indonesia place a heavy and extraordinary burden on the affected people. Disaster victims are often unable to cope with the stress and tension of a disaster, so they turn to the government for help. Disasters also create difficult problems for the government to anticipate and deal with. As a result, the effectiveness of government efforts in disaster management varies. In many cases, the government’s response to disasters is slow, ineffective, often chaotic, and misguided. There is a “gap” between what the government is prepared to do in an emergency management situation and what emerges as the expectations of disaster victims. This paper aims to answer the problem on how the things related to community preparedness can be formulated in disaster management policies. We describe this assertion after conducting field research in six selected regencies in 2021. This mixed methods research is descriptive, with data collected through a survey with respondents and interviews with informants using semi-structured questionnaires. We conclude that there is no other way except society must be able to adapt to disasters and be capable of managing disaster risk reduction. This adaptability is manifested in the forms of society’s preparedness for disasters.
Potato cultivation on the west slope of Mount Slamet: millennial farmers perceptions and intentions for conservation-based farming
Authors: Karim A R , Darsono  , Harisudin M , Dharmawan B 
Published: May 2023

Abstract
A comprehension on the millennial farmers’ perceptions about land degradation, and their intentions to perform conservation-based farming is the initial effort in formulating appropriate programs and policies to control land degradation on the Mount Slamet’s western slope, Central Java. This study aims to: 1) explore the perceptions of millennial farmers about land degradation in potato farming and 2) discover the effect of these perceptions on their intention to do pro-environmental farming. The research was conducted in Paguyangan Brebes from January to March 2022 with a total sample of 189 millennial farmers aged 19-39 years. Research data were collected using a questionnaire with a Likert scale of 1-5. The analysis used was descriptive analysis and SEM-PLS through WarpPLS 7.0 software. The results showed that 96.83% of the millennial farmers realized that there had been a phenomenon of land degradation for potato cultivation. The decline in potato production is the strongest indicator of millennial farmers’ perceptions of land degradation conditions (LC) and land degradation risk (RISK). Both are the antecedents of millennial farmers’ intention to perform conservation-based farming (INT) partially. RISK acted as a mediating variable between LC and INT. INT reinforcement can be sought by clarifying the understanding of millennial farmers about the risk of land degradation in potato farming.
Coupling of QD-based PhC nanocavity with two mechanical modes: an approach to tunable optical switching and sensing applications
Authors: Yeasmin Sajia , Barbhuiya Sabur A , Bhattacherjee Aranya B , Banerjee Souri 
Published: May 2023

Abstract
We theoretically study the dynamical change in the amplification of the output probe field spectra of a hybrid optomechanical system consisting of double mechanical modes coupled to a photonic crystal (PhC) nanocavity. The PhC cavity is also embedded with a quantum dot (QD) (two-level system) and simultaneously driven by an external pump and a probe field. We show that multiple number of transparency windows that appear can be controlled by the QD-cavity coupling strength and also the Fano profiles are directly measured by the resonant frequency of the mechanical mode. We also show the optical transition from bistability to tristability/multistability by adjusting the switching threshold of the system parameters. These results can also be used to study frequency optical nonreciprocity and all-optical switches in multi-resonator photonic devices.