bluuebunny/crossref_metadata_2025 huggingface dataset:
Gas emission optimization and optimal energy management of a microgrid operating by renewable and sustainable generation systems
Authors: MEZHOUD Nabil , AYACHI Bilel , BAHRI Ahmed
Published: July 2024

The economic operation of electric energy generating systems is one of predominant problems in energy systems. Due to the need for better reliability, high energy quality, lower losses, lower cost and clean environment, the application of renewable and sustainable energy sources such as wind energy, solar energy, fuel cells, etc. in recent years has become more widespread mainly. In this work, one of most general of all swarm intelligence algorithms inspired by collective intelligent behavior of natural or artificial systems called the Particle Swarm Optimization (PSO) is applied to solve the Gas emission Optimization (GEO) and the Optimal Energy Management (OEM) problems of a micro-grid (MG) operating by Renewable and Sustainable Generation Systems (RSGS). Our main goal is to minimize nonlinear objective function of an electrical micro-grid taking into account of equality and inequality constraints. The PSO approach was examined and tested on a standard MG system composed of different types of RSGS such as wind turbines (WT), photovoltaic systems (PV), fuel cells (FC), micro turbine (MT), diesel generator (DEG) and loads with energy storage systems (ESS). The results are promising and show the effectiveness and robustness of proposed approach to solve the GEO and the OEM problems. The results of proposed method have been compared and validated with those known references published recently.
ADRC-LSE Control of a Dual-Star Induction Motor Powered by a Dual 3-level NPC Inverter
Authors: DARSOUNI Zakaria , REZGUI Salah Eddine , REBAHI Fares , BENALLA Hocine , NEBTI Khalil
Published: July 2024

In the context of electric vehicle propulsion drives, this paper presents anActive disturbances Rejection Control (ADRC) strategyapplied to a Dual Star Induction Motor (DSIM)powered by dual 3 levels inverter type NPC. The proposed method focuses on enhancing the Active Disturbance Rejection Control (ADRC) method by integrating Least Squares Estimation, establishing a direct relationship between the control law and the necessary frequency for the DSIM to turn in the exact speed whatever the load torque applied. The ADRC with Least Squares Estimation is compared with Field-Oriented Control (FOC) to evaluate their performance in tracking reference speed and stabilizing time. Additionally, another test is conducted to assess the ADRC's ability to reject disturbances. Results from the simulation demonstrate the effectiveness of ADRC with Least Squares Estimation, showcasing its potential for optimizing DSIM control in electric vehicle applications, thereby contributing to enhanced efficiency and stability.
Risk Identification of Robotic Systems through the Application of System-Theoretic Process Analysis
Authors: BENSACI Chaima , ZENNIR Youcef , LUNDTEIGEN Marry Ann
Published: July 2024

Autonomous multi-mobile robots are becoming increasingly prevalent in various applications, ranging from industrial automation to healthcare and logistics. While these robots offer enhanced efficiency and productivity, their operation introduces many safety challenges. In this paper, the application of System-Theoretic Process Analysis (STPA) is proposed as a systematic approach to identify and mitigate risks associated with the main features of autonomous multi-mobile robots. This approach is illustrated using a case study concerning a transportation task of hazardous products within a robotic analysis laboratory. Through a structured analysis process, STPA enables the identification of unsafe control actions, the establishment of safety constraints also the generation of safety requirements. The ultimate goal is to improve the autonomous attribute of mobile robots, so on ensuring their operational safety in high-risk environments.
Identifying Human Dark Triad from Text Data Through Machine Learning Models
Authors: Yeasmin Sumona , Nowshin Nazia , Chowdhury Tasnia Afrin
Published: June 2024

Machiavellian, narcissistic, and psychopathological personality characteristics are together referred to as the “Dark Triad”. These characteristics include a lack of empathy, self-centeredness, and manipulative tendencies. Accurately identifying those with these features has significant ramifications for several fields, including psychology, criminology, and human resources. This study investigates the use of machine learning models and natural language processing (NLP) approaches to extract Dark Triad characteristics from text data. To assess the efficacy of several models for detecting people with Dark Triad qualities, we compare their results to ground truth obtained from survey data for Random Forest, K-Nearest Neighbors (KNN), Linear Support Vector Classifier (Linear SVC), Naive Bayes, and Neural Network models. The experiments yield Random Forest, KNN, Linear SVC, and neural network obtained testing accuracies of 83% to 84% for Machiavellianism; KNN achieved 67% for Psychopathy; and Neural Network reached 71% for Narcissism. Overall, the Linear SVC has consistently given better results between 60-80 percent for the three Dark Triad traits, showing constant precision and recall rates. Future aims include refining models, exploring alternative feature extraction methods, and expanding the dataset for improved accuracy and generalizability.
Antitesis Terhadap Yesus Menurut Pandangan Continuanism: Studi Analisis Teks “τὸ τέλειον (To Teleion)” dalam 1 Korintus 13:10
Authors: Kiamani Andris , Pattinaja Aska Aprilano
Published: June 2024

The debate between cessationism and continuanism regarding the translation of the phrase τὸ τέλειον (to teleion) continues to this day, through various arguments and interpretations. For this reason, this study aims to analyze the true meaning of the phrase τὸ τέλειον (to teleion) in 1 Corinthians 13:10, which is the basis of the debate between the two groups. Studies that support continuanism have so far interpreted the phrase τὸ τέλειον (to teleion) as a reference to the personality of Jesus, thus making the researcher consider it necessary to comprehensively study to find the true meaning of the phrase τὸ τέλειον (to teleion), using interpretative qualitative methods through the process of exegesis to understand the text in question. This article finds the meaning of the phrase τὸ τέλειον (to teleion) in 1 Corinthians 13:10 does not refer to the personality of Jesus but to the Bible as the Word/Word of God which functions as a medium in shaping spiritual maturity. Thus, the study of the phrase τὸ τέλειον (to teleion) has proven an antithetical interpretation of Jesus' personality according to the view of continuanism.
Cellgevity®: Preventive Potential Against High Fructose Diet-Induced Inflammation And Oxidative Stress
Authors: Otasowie Rawlings , Anionye John
Published: June 2024

Background: Modern diets high in fructose, have been linked to metabolic disorders, inflammation and oxidative stress. Herbal supplements like Cellgevity®, touted for their anti-inflammatory and antioxidant properties, therefore needed to be investigated. Objectives: This study was aimed to evaluate the potential of Cellgevity®, a herbal supplement, in preventing inflammation and oxidative stress, induced by a high fructose diet. Methods: Twenty male rats, (about 200g each), were divided into four groups of five rats each: the control, high fructose diet with fructose water (HFD+FW), HFD+FW with Atorvastatin (0.57 mg/kg-b.w), and HFD+FW with Cellgevity® (26.15 mg/kg-b.w), groups. After a 28-day experimental period, they were sacrificed and blood samples collected and analyzed for the levels of high sensitive C-reactive protein (HsCRP), malondialdehyde (MDA), and total antioxidant capacity (TAC). Statistical analysis, was done using the SPSS-20 package. Results: Rats on high fructose diet had significantly (P<0.05) elevated HsCRP levels (0.63±0.04 mg/dl) compared to those of the control (0.27±0.01 mg/dl). When compared with the HFD+FW group (0.63±0.04 mg/dl), Atorvastatin and Cellgevity® prevented significantly (P<0.05), the rise in HsCRP levels (0.28±0.00 mg/dl; 0.29±0.01 mg/dl respectively), while only Cellgevity® significantly (P<0.05) prevented an increase in the MDA levels (HFD+FW: 0.32±0.01 μM; Cellgevity®: 0.09±0.02 μM). Atorvastatin and Cellgevity® both significantly (P<0.05) prevented a fall in the TAC levels (0.38±0.03 μmol/ml; 0.59±0.03 μmol/ml respectively) compared to the HFD+FW group (0.21±0.06 μmol/ml), with Cellgevity® being more effective. Conclusion: Cellgevity® therefore showed promise as a supplement that can prevent high fructose diet induced inflammation and oxidative stress.
Varoluşçu Psikoterapi ve Mevlâna Celaleddin-i Rumi
Authors: Atasever Aşkay Nur
Published: July 2024

13. yüzyılda yaşamış olan büyük İslam mutasavvıfı ve şair Mevlâna Celaleddin-i Rumi, ülkemizin sahip olduğu çok önemli değerlerden biridir. Mevlâna ile ilgili şu ana kadar farklı alanlarda birçok çalışma yapılmıştır. Son yıllarda ise Mevlâna’nın düşüncelerinin psikoterapi alanında yapılan çalışmalara katkı sağlayacağı düşüncesi belirmeye başlamıştır. Bu düşünceden hareketle bu çalışmada, Hz. Mevlâna Celaleddin-i Rumi’nin düşünceleri varoluşçu psikoterapi yöntemi ile ilişkili olarak incelenmiştir. Çalışmanın ilk bölümünde varoluşçu psikoterapi yöntemi, temel kavramları (ölüm, özgürlük, yalıtım, anlamsızlık) esas alınarak tanıtılmıştır. İkinci bölümde Hz. Mevlâna’nın eserlerinin psikoterapötik yanından ve bu konuda yapılan çalışmalardan bahsedilmiştir. Üçüncü bölümde Hz. Mevlâna’nın düşünceleri ile varoluşçu psikoterapi yönteminin benzer ve farklı yönleri varoluşçu psikoterapinin temel kavramları göz önünde bulundurularak yorumlanmıştır. Dördüncü ve son bölümde ise Hz. Mevlâna’nın psikoterapistin/yardım edicinin taşıması gereken özellikler ile ilgili yaklaşımı günümüz psikoterapi dünyasının görüşleri ışığında değerlendirilmiştir.
Matematik Dersinde Beyin Temelli Öğrenme Yönteminin 7. Sınıf Öğrencileri Üzerinde Akademik Başarıya Etkisi
Authors: Karagöz Gözde , Aktaş Mine
Published: July 2024

Bu araştırma, 7. sınıf matematik dersi MEB müfredatı “Rasyonel Sayılar ve Rasyonel Sayılarla İşlemler” konusuna ait kazanımların öğretilmesinde beyin temelli öğrenme yöntemine uygun hazırlanmış olan ders planı ile etkinliklerin öğrencilerin matematik başarısına etkisini incelemeyi amaçlamıştır. Bu araştırmada söz konusu çalışma grubu, Hatay ilindeki bir devlet okulunun 7. sınıf kademesinde eğitim gören 46 öğrenciyi ifade etmektedir. Deney grubundaki 24 öğrenciyle beyin temelli öğrenme yöntemine göre hazırlanan planlar ve etkinlikler ile dersler sürdürülürken, kontrol grubunu oluşturan 22 öğrenci ile mevcut öğretim yöntemleriyle ders işlenmiştir. Araştırmada ön test/ son test kontrol gruplu yarı-deneysel desen modeli kullanılmıştır. Araştırmacı tarafından geliştirilen başarı testi veri toplamak amacıyla kullanılmıştır. Uygulamanın sonlanması ile elde edilen veriler SPSS programı yardımıyla analiz edilmiş ve yorumlanmıştır. Analiz edilen veriler sonucunda, deney grubunun ön test/ son test başarı puanları karşılaştırıldığında son teste ait puanlar arasında anlamlı farklılık bulunmuştur. Deney/ kontrol gruplarının son test başarı puanları karşılaştırıldığında ise deney grubu lehinde pozitif ve anlamlı farklılık bulunmuştur.
FLOOR CRANE STRUCTURE DESIGN AS A TOOL FOR REPLACING BATTERY PACKS ON TMII TRAM MOVER
Authors: Anwar Achmad Zainul , Asmara I Putu Shindu , Purnomo Dhika Aditya , Arif Saiful
Published: June 2024

Tram mover is a train made by PT INKA (Persero) as one of the rides at TMII (Taman Mini Indonesia Indah) which uses batteries as an energy source. In the battery replacement process still uses manual lifting by requiring 4 workers. Each tram mover has 2 battery packs, requiring 4 lifts in each replacement process. There is no floor crane product on the market that can be used as a replacement tool in TMII station conditions. In this research, the design of tools for battery pack replacement is carried out. A floor crane with capacity, strength, and dimensions adapted to the conditions at TMII and the tram mover. The analysis process will use FEM (fenite element methods) approach using FEM based software. The validity of the simulation results is carried out on the value of the result of the safety factor, von misses stress, and deflection. The load used from weight of battery pack is 275 Kg. Arm static stress analysis obtained an actual minimum safety factor value of 2.004, maximum von mises stress of 123.9 MPa, and maximum total displacement of 5.206 mm. On the crutch obtained the actual minimum safety factor value of 2.518, stress von mises maximum of 98.59 MPa, and a maximum total displacement of 0.195 mm. on the chassis obtained the actual minimum safety factor value of 2.027, stress von mises maximum of 109.4 MPa, and a maximum total displacement of 0.2813 mm.
Tram mover merupakan kereta yang dibuat oleh PT. INKA (Persero) sebagai salah satu wahana di TMII (Taman Mini Indonesia Indah) yang menggunakan baterai sebagai sumber energi. Pada proses penggantian battery pack masih menggunakan pengangkatan manual, dimana hal tersebut tidak efisien. Pada penelitian ini, dilakukan perancangan alat bantu untuk penggantian battery pack. Sebuah floor crane dengan kapasitas, kekuatan, dan dimensi yang disesuaikan dengan kondisi di TMII dan tram mover. Perancangan dan pengembangan produk menggunakan metode Ulrich yang memiliki output berupa desain produk terpilih berdasarkan kriteria pemilihan, kemudian dilakukan analisis kekuatan, analisis ergonomi, dan analisis biaya produksi. Analisis static stress lengan didapatkan nilai actual minimum safety factor sebesar 2.344, stress von mises maximum sebesar 105.9 MPa, dan displacement total maximum sebesar 12.97 mm pada lengan. Pada penopang didapatkan nilai actual minimum safety factor sebesar 2.518, stress von mises maximum sebesar 98.59 MPa, dan displacement total maximum sebesar 0.195 mm. pada chassis didapatkan nilai actual minimum safety factor sebesar 2.055, stress von mises maximum sebesar 120.8 MPa, dan displacement total maximum sebesar 0.3384 mm.
POLA ASUH ORANG TUA TERHADAP KEPERCAYAAN DIRI REMAJA PENYANDANG TUNAWICARA DI KECAMATAN WARUNGPRING KABUPATEN PEMALANG
Authors: AMBARWATI SEPTIANA , USBAH ALIKA MAEZALATI , LESTARI SRI AYU , MASFIA IRMA , FAHMY ZULFA
Published: June 2024

The parenting style of parents who have children with special needs tends to have greater challenges in parenting their children, so when caring for children with disabilities, there needs to be an appropriate parenting style in order to form the self-confidence of children with disabilities in their environment. This research aims to find out a general description of the forms of parenting used by parents for teenagers with disabilities speech impaired and to find out how parenting styles can shape the self-confidence of teenagers with speech impairments. The results of the interviews, which were strengthened by relevant research literature, showed that parenting styles play a very important role in shaping the self-confidence of teenagers with disabilities speech impaired This research is a type of qualitative research using the interview method. The informants in this study were parents of teenagers with speech impairments. In this research, the parenting style used by informants is democratic parenting. Apart from parenting style factors, there are other supporting factors that can build the self-confidence of teenagers with speech impairments. These other factors are similarity factors, educational factors and technological developments.
ABSTRAKPola asuh orang tua yang memiliki anak berkebutuhan khusus cenderung memiliki tantangan yang lebih besar dalam pola pengasuhan terhadap anaknya sehingga dalam mengasuh anak disabilitas perlu adanya pola asuh yang tepat agar dapat membentuk kepercayaan diri anak disabilitas di lingkungannya. Penelitian ini bertujuan untuk mengetahui gambaran umum mengenai bentuk pola asuh yang digunakan oleh orang tua terhadap remaja penyandang tunawicara serta untuk mengetahui bagaimana pola asuh dapat membentuk kepercayaan diri remaja penyandang tunawicara. hasil wawancara yang diperkuat dengan literatur penelitian yang relevan, didapatkan hasil bahwa pola asuh sangat berperan penting dalam membentuk kepercayaan diri remaja penyandang tunawicara Penelitian ini merupakan jenis penelitian kualitatif dengan menggunakan metode wawancara. Informan pada penelitian ini adalah orang tua dari remaja penyandang tunawicara.  Dalam penelitian ini pola asuh yang digunakan oleh informan adalah pola asuh demokratis. Selain faktor pola asuh orang tua, terdapat faktor pendukung lain yang dapat membangun kepercayaan diri remaja penyandang tunawicara. Faktor lain tersebut adalah faktor kesamaan, faktor pendidikan dan perkembangan teknologi.
Significance of Tissue Culture in Medicinal Plant Conservation and enhancement of Secondary metabolites by Homoeopathic intervention: A Narrative review
Authors: Shinde Dr. Chetan , Sahoo Dr.Sweta , Namdeo Dr. Ajay G. , Meti Dr. Neelambika T.
Published: July 2024

Aim: The objective of this study is to explore the potential of homoeopathic remedies in enhancing the biosynthesis of secondary metabolites in endangered medicinal plants.
Background: Plants serve as a valuable source of medicine. Plant-based medicines are known for their simplicity, efficiency, and a broad range of activity with well-documented preventative or therapeutic effects. Secondary metabolites are active chemical components found in plants that are responsible for their medicinal properties. However, population growth, increased demand, illicit trafficking is driving the depletion of medicinal plants, and many are on the verge of extinction. The synthesis of phytochemicals in plants for medicinal purpose can be improved through various tissue culture techniques and homoeopathic remedies have been found to boost the generation of secondary metabolites.
Methodology and Results: A comprehensive review of the scientific literature was carried out by searching through various databases, including Scopus, PubMed, Wiley, Google Scholar. Numerous investigations were conducted to assess the impact of homoeopathic remedies on the growth, phytochemical composition, and essential oil production of various medicinal plants. The most studied homoeopathic preparations were Phosphorus, Sulphur, and Silicea. Homoeopathic preparations were observed to improve photosynthetic rates by distributing greater amounts of photo-assimilated substances in the leaves, ultimately leading to enhanced growth. Homoeopathic medications work on the initial substances like pyruvic acid, ornithine and proline that contribute to the formation of shikimic acid and acetate, while providing the vital energy needed for plants to grow and flourish. These processes generate organic compounds that serve as precursors for various categories of secondary metabolites.
Conclusion, Significance, and Impact of the study: Overall, the results suggest that homoeopathic preparations can positively impact the essential oil yield, growth, phytochemical profile of medicinal plants and expanded possibilities for the synthesis of pharmacologically and biologically active compounds. Research into applying homoeopathy to grow medicinal plants is highly relevant, as it's a long-standing practice aiming to optimize production and improve chemical constituent quality.
A modular approach to volatile organic compound samplers for tethered balloon and drone platforms
Authors: Guagenti Meghan , Dexheimer Darielle , Ulinksi Alexandra , Walter Paul , Flynn III James H. , Usenko Sascha
Published: June 2024

Abstract. Situated at a land-sea interface, Houston, Texas, is a national hub for the petrochemical industry and has the second fastest-growing metropolitan population in the United States. Addressing air quality in this region is uniquely challenging, due in part to its wide range of meteorological conditions (e.g., convection systems and temperature inversions) and continuum of volatile organic compound (VOC) and aerosol sources (e.g., anthropogenic and biogenic).  As a result, Houston was chosen as the location for the Department of Energy’s Atmospheric Radiation Measurement (ARM) program-led Tracking Aerosol Convection ExpeRiment (TRACER), which investigated cloud and aerosol interactions in the deep convection over the area. Deployed as a key asset, ARM’s tethered balloon system (TBS) was used to investigate questions related to the vertical distributions of aerosols and their formation, including their precursor species volatile organic compounds. Platforms like TBSs and uncrewed aerial vehicles (UAVs) can bridge the vertical gap between ground-based and crewed airplane measurement platforms to focus on near-surface characterization. However, there has been limited effort to modularize and integrate VOC samplers into instrument payloads on both aerial systems. In this study, lightweight and robust VOC samplers were designed and deployed on the TBS and a UAV to collect VOCs in flight. The modular design allowed for scalable adjustments to meet the unique platform requirements and enabled multiple flights per sampling day. Each sampler can autonomously collect VOCs on up to four sorbent tubes for subsequent thermal desorption-gas chromatography-mass spectrometry analysis. The low sampler mass (2.2 kg and 800 g, TBS and UAV, respectively) enables the combination of these VOC samplers with trace gas, aerosol, and meteorological sensors on aerial platforms. These profiles allow us to assess temporal changes in VOC magnitude and composition at multiple locations. Observations from TBS and UAV flights during TRACER are presented and future considerations for sampler design and deployments are discussed.
Separating above-canopy CO2 and O2 measurements into their atmospheric and biospheric signatures
Authors: Faassen Kim A. P. , Vilà-Guerau de Arellano Jordi , González-Armas Raquel , Heusinkveld Bert G. , Mammarella Ivan , Peters Wouter , Luijkx Ingrid T.
Published: June 2024

Abstract. Atmospheric tracers are often used to interpret the local CO2 budget, where measurements at a single height are assumed to represent local flux signatures. Alternatively, these signatures can be derived from direct flux measurements or by using fluxes derived from measurements at multiple heights. In this study, we contrast interpretation of surface CO2 exchange from tracer measurements at a single height to measurements at multiple heights. Specifically, we analyse the ratio between atmospheric O2 and CO2 (exchange ratio, ER) above a forest. We consider the following two alternative approaches: the exchange ratio of the forest (ERforest) obtained from the ratio of the surface fluxes of O2 and CO2 derived from measurements at multiple heights, and the exchange ratio of the atmosphere (ERatmos) obtained from changes in the O2 and CO2 mole fractions over time measured at a single height. We investigate the diurnal cycle of both ER signals to better understand the biophysical meaning of the ERatmos signal. We have combined CO2 and O2 measurements from Hyytiälä, Finland, during spring and summer of 2018 and 2019 with a conceptual land–atmosphere model to investigate the behaviour of ERatmos and ERforest. We show that the CO2 and O2 signals as well as their resulting ERs are influenced by climate conditions such as variations in soil moisture and temperature, for example during the 2018 heatwave. We furthermore show that the ERatmos signal obtained from single-height measurements rarely represents the forest exchange directly, mainly because it is influenced by entrainment of air from the free troposphere into the atmospheric boundary layer. The influence of these larger-scale processes can lead to very high ERatmos values (even larger than 2), especially in the early morning. These high values do not directly represent carbon cycle processes, but are rather a mixture of different signals. We conclude that the ERatmos signal provides only a weak constraint on local-scale surface CO2 exchange, and that ERforest above the canopy should be used instead. Single-height measurements always require careful selection of the time of day and should be combined with atmospheric modelling to yield a meaningful representation of forest carbon exchange. More generally, we recommend always measuring at multiple heights when using multi-tracer measurements to study surface CO2 exchange.
The fate of fixed nitrogen in Santa Barbara Basin sediments during seasonal anoxia
Authors: Peng Xuefeng , Yousavich David J. , Bourbonnais Annie , Wenzhöfer Frank , Janssen Felix , Treude Tina , Valentine David L.
Published: June 2024

Abstract. Despite long-standing interest in the biogeochemistry of the Santa Barbara Basin (SBB), there are no direct rate measurements of different nitrogen transformation processes. We investigated benthic nitrogen cycling using in situ incubations with 15NO3- addition and quantified the rates of total nitrate (NO3-) uptake, denitrification, anaerobic ammonia oxidation (anammox), N2O production, and dissimilatory nitrate reduction to ammonia (DNRA). Denitrification was the dominant NO3- reduction process, while anammox contributed 0 %–27 % to total NO3- reduction. DNRA accounted for less than half of NO3- reduction except at the deepest station at the center of the SBB where NO3- concentration was lowest. NO3- availability and sediment total organic carbon content appeared to be two key controls on the relative importance of DNRA. The increasing importance of fixed N retention via DNRA relative to fixed N loss as NO3- deficit intensifies suggests a negative feedback loop that potentially contributes to stabilizing the fixed N budget in the SBB. Nitrous oxide (N2O) production as a fraction of total NO3- reduction ranged from 0.2 % to 1.5 %, which was higher than previous reports from nearby borderland basins. A large fraction of NO3- uptake was unaccounted for by NO3- reduction processes, suggesting that intracellular storage may play an important role. Our results indicate that the SBB acts as a strong sink for fixed nitrogen and potentially a net source of N2O to the water column.
Quantifying the Buttressing Contribution of Sea Ice to Crane Glacier
Authors: Parsons Richard , Sun Sainan , Gudmundsson G. Hilmar , Wuite Jan , Nagler Thomas
Published: July 2024

Abstract. The January 2022 disintegration of landfast sea ice in the Larsen B Embayment was closely followed by a significant acceleration of ice flow and ice-front retreat of numerous outlet glaciers. Crane Glacier was a notable example of this, with 6 km of its floating ice shelf lost to calving in the first month following the sea ice disintegration and a 3.4 % increase in terminus flow speeds over the same time period. In this study we quantify for the first time the buttressing resistance that the sea ice provided to Crane with ice-flow model, Úa. We constrained our model with satellite derived elevation profiles of glacier, sea ice and associated melange downstream of Crane’s terminus and reconstructed the observed flow velocities by optimising the rheology rate factor of both the glacier and sea ice allowing us to quantify the stress regime throughout our model domain. Results showed that resistive backstresses were imparted to Crane by the sea ice with a mean buttressing number of 0.68 calculated at the glacier terminus. In addition, diagnostic modelling showed an expected 19.2 kPa mean increase in extensional stress at the ice-front following the loss of buttressing sea ice. This perturbation in stress likely triggered the observed rapid calving over the near terminus region, leading to the loss of sections of Crane's buttressing floating ice shelf and further acceleration of ice flow in the subsequent months.
Quantifying the analysis uncertainty for nowcasting application
Authors: Zhu Yanwei , Atencia Aitor , Dabernig Markus , Wang Yong
Published: June 2024

Abstract. This study proposes a method to quantify the uncertainty of the error in the very high–resolution analysis in near–surface level for nowcasting application. We perturbed the first guess field and observation with Gaussian–distributed perturbations, which have variance equal to that of first guess error. The first guess error not only reflects the spatial characteristic of the difference between the first guess field and observation but also dominates the major uncertainty information of analysis errors. It is important to consider the attenuation of uncertainty dispersion caused by interpolation. Gaussian perturbations are combined with an inflation factor to estimate the attenuation of perturbation dispersion. To assess this method, it was applied to high–resolution analysis and nowcasting in the Beijing–Tianjin–Hebei region for hourly temperature, humidity and wind components. To evaluate the transmission of perturbation information in the nowcasting extrapolation, the ensemble analysis is used to compute ensemble nowcasting. The verifications show that the ensemble analysis has reasonable spread and high reliability, demonstrating effective and accurate quantification of the analysis error uncertainty. Verifications of ensemble nowcasting illustrate that the ensemble spread has effective growth within the nowcast extrapolation up to a lead time of 2 hours, but highly depends on the trend of NWP. The results prove that the propagation of analysis uncertainty representation in nowcasting extrapolation can match to the error increment, beneficial for estimating the near–surface nowcasting uncertainty.
A process-based evaluation of biases in extratropical stratosphere-troposphere coupling in subseasonal forecast systems
Authors: Garfinkel Chaim I. , Lawrence Zachary D. , Butler Amy H. , Dunn-Sigouin Etienne , Erner Irene , Karpechko Alexey Yu. , Koren Gerbrand , Abalos Marta , Ayarzaguena Blanca , Barriopedro David , Calvo Natalia , de la Cámara Alvaro , Charlton-Perez Andrew , Cohen Judah , Domeisen Daniela I. V. , García-Serrano Javier , Hindley Neil P. , Jucker Martin , Kim Hera , Lee Robert W. , Lee Simon H. , Osman Marisol , Palmeiro Froila M. , Polichtchouk Inna , Rao Jian , Richter Jadwiga H. , Schwartz Chen , Son Seok-Woo , Taguchi Masakazu , Tyrrell Nicholas L. , Wright Corwin J. , Wu Rachel W.-Y.
Published: June 2024

Abstract. Two-way coupling between the stratosphere and troposphere is recognized as an important source of subseasonal-to-seasonal (S2S) predictability and can open  windows of opportunity for improved forecasts. Model biases can, however, lead to a poor representation of such coupling processes;  drifts in a model’s circulation related to model biases, resolution, and parameterizations have the potential to feed back on the circulation and affect stratosphere-troposphere coupling. In the Northern Hemisphere, nearly all S2S forecast systems underestimate the strength of the observed upward coupling from the troposphere to the stratosphere,  downward coupling within the stratosphere, and the persistence of lower stratospheric temperature anomalies. While downward coupling from the lower stratosphere to the near surface is well represented in the multi-model ensemble mean, there is substantial inter-model spread likely related to how well each model represents tropospheric stationary waves. In the Southern Hemisphere, the stratospheric vortex is over-sensitive to upward propagating wave flux in the forecast systems. Forecast systems generally overestimate the strength of downward coupling from the lower stratosphere to the troposphere, even as they  underestimate the radiative persistence in the lower stratosphere. In both hemispheres, models with higher lids and a better representation of tropospheric quasi-stationary waves generally perform better at simulating these coupling processes.
Enriching lower LoD 3D city models with semantic data computed by the voxelisation of BIM sources
Authors: van der Vaart Jasper , Stoter Jantien , Agugiaro Giorgio , Arroyo Ohori Ken , Hakim Amir , El Yamani Siham
Published: June 2024

Abstract. The role and adoption of 3D city models have been changing from a data endpoint to a centralised data source that is used for a variety of different analyses in different sectors. This change has not yet been fully completed and the transition process is still very noticeable at certain places. For example, data required for city-scale analyses are often missing, incorrect, or not stored in a standard way. A subset of these data (E.g. shell volume, shell area & footprint area) can be approximated from lower LoD shapes (LoD2.2 or lower) in the 3D city models. However, these models frequently simplify reality and therefore these approximations are not accurate. This paper proposes computing these data by voxelising Building Information Modelling (BIM) models representing the same buildings as the 3D city model. It is shown that a subset of these approximations (shell volume & footprint area) are more accurate than values computed from lower LoD shapes. Storing these data as attributes of the building models in 3D city models can improve the ease of use and the outcome of city-scale analyses. The computed values from BIM models can also be assigned to outputs of BIM to Geo conversions. This overturns the accuracy loss of the geometry caused by the conversion in which geometry is significantly generalised and simplified.
A Categorization and Parametric Modeling Approach Using Open Geodata Enabling Building Vulnerability Assessment
Authors: Vetter Joanna Zarah , Neuhäuser Stefan , Rosin Julia , Stolz Alexander
Published: June 2024

Abstract. Due to the increase in the frequency and intensity of natural disasters such as heavy rainfall events, the evaluation of the vulnerability of the built environment is becoming increasingly important. Evaluation techniques for each separate building often require detailed geometric models of the supporting structures and time-consuming simulations. One possibility to overcome this problem is to categorize the buildings in a first step and use representative building models for each category. This paper presents a semi-automated approach for categorizing buildings and creating parametric models for the respective building categories. Using these models, the buildings of a category can be collectively examined for their vulnerability to various impacts. First, this paper introduces open geodata that can be used for this process. For the categorization of the buildings, the collected data is further processed to extract additional information such as building age classes or floor plan geometries of the buildings. This results in a data set, with the help of which the buildings can be categorized. However, information about the load-bearing structure is often missing in the different data sources. By including information on typical construction methods that are associated with the previously determined characteristics (age, floor plan geometry, usage), representative models can be created for individual building categories. In this study, the approach was tested in a selected reference area in Berlin. The results indicate that the presented approach is a promising first step towards deriving geometrical models from open geodata that can be used to evaluate the vulnerability of buildings.
Direct Use of Indoor Point Clouds for Path Planning and Navigation Exploration in Emergency Situations
Authors: Yasar Algan Mert , Voûte Robert , Verbree Edward
Published: June 2024

Abstract. This study investigates the feasibility of directly utilizing 3D indoor point clouds for real-time indoor navigation, particularly to enhance emergency response processes. Traditional indoor navigation research primarily focuses on creating navigation systems from pre-existing indoor models, resulting in a graph representation that simplifies spatial relationships, requires post-processing, and delivers results only afterwards, often overlooking real-time obstacles and complex layouts such as those in modern office floors. This research proposes an original approach by leveraging real-time generated 3D models using HoloLens 2 sensors, which combine RGB images and depth sensor output to create a comprehensive point cloud. The study explores path planning directly within these point clouds without the need for extensive preprocessing or segmentation, aiming to provide immediate navigation support with minimal delay. Utilizing the Rapidly Exploring Random Trees (RRT) algorithm, the research seeks to minimize preprocessing and swiftly visualize navigable paths, evaluating the system's performance in terms of processing time and path viability. This approach addresses the limitations of traditional graph-based methods and the challenges posed by outdated or unavailable indoor models, offering a promising solution for real-time emergency navigation assistance.
Return to the Ross Ice Shelf Project (RISP), Site J-9 (1977–1979): perspectives of West Antarctic Ice Sheet history from Miocene and Holocene benthic foraminifera
Authors: Dameron Serena N. , Leckie R. Mark , Harwood David , Scherer Reed , Webb Peter-Noel
Published: July 2024

Abstract. In 1977–1978 and 1978–1979, the Ross Ice Shelf Project (RISP) recovered sediments from beneath the largest ice shelf in Antarctica at Site J-9 (∼82° S, 168° W), ∼450 km from open marine waters at the calving front of the Ross Ice Shelf and 890 km from the South Pole, one of the southernmost sites for marine sediment recovery in Antarctica. One important finding was the discovery of an active macrofauna, including crustaceans and fish, sustained below the ice shelf far from open waters. The sediment has a thin, unconsolidated upper unit (up to 20 cm thick) and a texturally similar but compacted lower unit (>1 m thick) containing reworked early, middle, and late Miocene diatom and calcareous benthic foraminiferal assemblages. A probable post-Last Glacial Maximum (LGM) disconformity separates the upper unit containing a dominantly agglutinated foraminiferal assemblage, from the lower unit consisting mostly of reworked Miocene calcareous benthic species, including Trifarina fluens, Elphidium magellanicum, Globocassidulina subglobosa, Gyroidina sp., and Nonionella spp. The presence of the polar planktic foraminiferal species Neogloboquadrina pachyderma and the endemic Antarcticella antarctica supports the late Miocene diatom age for the matrix of the lower unit. The microfossil assemblages indicate periods of ice sheet collapse and open-water conditions south of Site J-9 during warm intervals of the early, middle, and late Miocene, including the Miocene Climatic Optimum (∼17–14.7 Ma), demonstrating the dynamic nature of the West Antarctic Ice Sheet (WAIS) and Ross Ice Shelf during the Neogene. The foraminiferal assemblage of the upper unit is unique to the Ross Sea and suggests the influence of a sub-ice-shelf water mass proximal to the retreating post-LGM grounding zone. This unique assemblage is strongly dominated by the bathyal, cold-water agglutinated genus Cyclammina.
Evaluating post-wildfire debris-flow rainfall thresholds and volume models at the 2020 Grizzly Creek Fire in Glenwood Canyon, Colorado, USA
Authors: Rengers Francis K. , Bower Samuel , Knapp Andrew , Kean Jason W. , vonLembke Danielle W. , Thomas Matthew A. , Kostelnik Jaime , Barnhart Katherine R. , Bethel Matthew , Gartner Joseph E. , Hille Madeline , Staley Dennis M. , Anderson Justin K. , Roberts Elizabeth K. , DeLong Stephen B. , Lane Belize , Ridgway Paxton , Murphy Brendan P.
Published: June 2024

Abstract. As wildfire increases in the western United States, so do postfire debris-flow hazards. The U.S. Geological Survey (USGS) has developed two separate models to estimate (1) rainfall intensity thresholds for postfire debris-flow initiation and (2) debris-flow volumes. However, the information necessary to test the accuracy of these models is seldom available. Here, we studied how well these models performed over a 2-year period in the 2020 Grizzly Creek Fire burn perimeter in Glenwood Canyon, Colorado, USA, through the development of a debris-flow response inventory. The study area had the advantage of a network of 11 rain gauges for rainfall intensity measurements and repeat lidar data for volume estimates. Our observations showed that 89 % of observed debris flows in the first year postfire were triggered by rainfall rates higher than the fire-wide rainfall threshold produced by the current USGS operational model (M1). No debris flows were observed in the second year postfire, despite eight rainstorms with intensities higher than the modeled rainfall threshold. We found that the operational model for debris-flow initiation rainfall thresholds works well in this region during the first year but may be too conservative in year 2 due to vegetation recovery and sediment depletion. However, rainfall thresholds in the second year can be improved by using updated remote sensing imagery to recalculate the debris-flow initiation likelihood with the M1 model. The current volume model overestimates for this region by a median value of 4.4 times. However, the offset between the model estimates and observations is approximately linear, and the volumes from the Grizzly Creek debris flows had a similar magnitude to historic postfire debris flows in the region. Consequently, the current volume model could be adjusted with a regional correction factor.
СТАЛА БАНКІВСЬКА ДІЯЛЬНІСТЬ ЯК ПРЕДМЕТ ФІНАНСОВО-ПРАВОВОГО РЕГУЛЮВАННЯ
Authors: Музика-Стефанчук Оксана Анатоліївна , Дубко Анастасія Станіславівна
Published: June 2024

У статті проаналізовано такий феномен сучасності, як стала банківська діяльність, яка своєю появою на світовій економіко-правовій арені відображає переорієнтацію фінансового сектора на забезпечення виконання цілей сталого розвитку, тобто зростає визнання ролі фінансів у вирішенні проблем екологічного, соціального та управлінського характеру. Як відзначається, стала банківська діяльність виходить за межі традиційних фінансових цілей з огляду на інтеграцію міркувань соціального, екологічного та управлінського характеру, і саме тому забезпечення нормативно-правового регулювання сталої банківської діяльності заслуговує на особливу увагу з боку дослідників у сфері фінансового права. Аналізуючи категорію сталої банківської діяльності та можливості фінансово-правового регулювання відповідних правовідносин, авторки звертають увагу на визначення та особливості концепції сталого розвитку, а також надають власне визначення категорії «стале фінансування». У статті стале фінансування пропонується розглядати як відносини щодо надання фінансових ресурсів у різних формах та за допомогою різних механізмів суб’єктам господарювання, публічно-владним утворенням та іншим суб’єктам, які реалізують проєкти, програми та окремі ініціативи, спрямовані на досягнення цілей сталого розвитку. Також наведено приклади реалізації сталих банківських практик у розрізі компонент екологічного, соціального та управлінського характеру. Особливу увагу в дослідженні приділено також аспектам Політики Національного банку України щодо розвитку сталого фінансування до 2025 року. Аналізуючи сучасний стан забезпечення нормативного регулювання сталої системи банківських установ, авторки доходять висновку, що наразі в межах українських правових реалій банківська діяльність як вид сталої економічної діяльності не забезпечена ні імперативним правовим регулюванням, ні засобами заохочення з боку регулятора на впровадження такої практики. Саме тому, на думку авторок дослідження, необхідно створити адекватну сучасним реаліям нормативно-правову базу регулювання та заохочення сталої банківської діяльності на основі вже розроблених декларативних документів Національного банку України.
Peningkatan Kapasitas Usaha Poklahsarkan Konnya Ujunge Melalui Pemberdayaan Wanita Nelayan dalam Mengolah Abon Ikan Konya Aneka Rasa Di Kabupaten Barru
Authors: Hatidja St , Mariana Lina , Jamaluddin Jamaluddin , Firdaus Ahmad
Published: June 2024

Pemberdayaan masyarakat merupakan salah satu upaya dalam melakukan rekayasa sosial.  Pemberdayaan  perempuan  merupakan upaya  memperbaiki  status   dan   peran  perempuan dalam pembangunan  bangsa,  sama  halnya  dengan kualitas  peran  dan  kemandirian  organisasi perempuan.  Permasalahan yang dihadapi oleh wanita nelayan khususnya mitra wanita nelayan Poklahsarkan Konnya Ujunge adalah  (1) Ketergantungan ekonomi wanita nelayan terhadap hasil tangkapan nelayan, (2) Ketidakmampuan perempuan nelayan untuk melakukan diversifikasi dan kegiatan pengolahan ikan karena kurangnya keterampilan dan pengetahuan menjadi salah satu penyebab rendahnya fleksibilitas keuangan rumah tangga nelayan; (3) Ketidakmampuan wanita nelayan melakukan manajemen ekonomi keluarga akibat ketidaktahuan dan terbatasnya pengetahuan, (4) Rendahnya kemampuan kelompok pengolahan dan pemasar ikan (Poklahsarkan) Konnya Ujunge dalam memproduksi abon ikan konya. Metode pengabdian kepada masyarakat yang dilakukan meliputi Tahap Pengamatan dan Sosialisasi, Tahap Pemilihan dan Penyusunan Metode Kegiatan, Tahap Pelaksanaan dan Monitoring dan Evaluasi. Dari kegiatan pelaksanaan pengabdian kepada masyarakat secara garis besar diidentifikasi permasalahan utama dari mitra saat ini, yaitu: Kurangnya pengetahuan mitra mengenai diversifikasi produk, kapasitas produksi masih terbatas, Manajemen Pemasaran dan Manajemen Usaha. Kegiatan pengabdian kepada mitra ini masih harus terus berlanjut untuk mewujudkan mitra menuju UMKM naik kelas.
Edukasi dan Demonstrasi Pengolahan Isi Piringku (Sop Daun Kelor ) Dalam Atasi Stunting
Authors: Ritonga Nefonavratilova , Hidayah Nasution Nurul , Hidayah Arinil , Ramadhini Delfi , Wari Harahap Yanna , Arisyah Siregar Yuli , Batubara Nurhalimah
Published: June 2024

Gizi yang optimal sangat penting untuk pertumbuhan normal serta perkembangan fisik dan kecerdasan anak. Salah satu upaya menjaga gizi seimbang adalah menggunakan porsi makan "Isi Piringku" terdiri dari lima puluh persen buah dan sayur, dan lima puluh persen sisanya terdiri dari karbohidrat dan protein. Namun, masih sedikit ibu yang mengerti porsi seimbang isi piringku untuk kebutuhan gizi balita. Dampaknya angka stunting di Indonesia masih tinggi. Sebagai upaya mencegah stunting salah satunya adalah dengan mengedukasi Ibu mengenai isi piringku dan indikator kecukupan gizi balita. Pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan tentang gizi, isi piringku dan stunting. Metode menggunakan teknik ceramah tanya jawab dan demonstrasi mengenai gizi balita, isi piringku dan stunting. Hasil pengabdian masyarakat dilihat dari pre dan post test pengetahuan ibu mengenai isi piringku, gizi dan stunting pada balita mengalami peningkatan. Ibu juga dapat mempraktikkan cara mengukur indikator kecukupan gizi dengan mengukur tinggi badan dibandingkan dengun berat badan sesuai dengan usia dan jenis kelamin. Tim pengabdian juga membagikan leaflet untuk peserta.
Rancang Bangun Mesin Pengiris Nenas Menggunakan Metoda Horizontal Rotating Blade
Authors: Novison Roni , Akhyan Amnur , Edilla Edilla , Ramadhani Dandi Putra
Published: June 2024

Nanas (Ananas comosus) adalah tumbuhan tropis dengan buah yang dapat dimakan dan tumbuhan yang memiliki nilai ekonomi. Nenas sendiri bisa diolah berbagai macam makanan yang enak dan bergizi seperti kripik, dodol, selai dan manisan jadi disini nenas adalah buah yang sangat berharga dikalangan pengolah nenas. Jadi padal alat pengiris nenas ini akan digunakan untuk mengiris nenas menjadi kripik buah nenas. Pada penilitian ini penulis merancang dan membuat sebuah mesin pengiris nenas dengan menggunakan metode horizontal rotating blade. Mesin ini dapat mengiris nenas dengan ketebalan bervariasi sehingga dapat meminimalisir terjadinya cacat pada proses pengirisan, waktu pengirisan menjadi singkat dan meminimalisir kecelakaan pada saat pengirisan. Pada mesin ini mengiris nenas dengan gerak linier maju mundur dan mengiris nenas dengan mata pisau burputar dan terjadi gaya potong, Hasil pengujian kecepatan putaran mata pisau baik didapat pada putaran 700 rpm dan untuk poros gerak linier didapat pada putaran 80 rpm. Hasil rancang bangun menggunakan motor listrik 0,5 Hp dengan kecepatan RPM 1400 untuk menggerakkan 2 poros. Pada alat ini tempat nenas (catridge) berbahan stainless steel di dalam catridge terdapat spring pendorong agar nenas teriris.