Miracle-dz/UniFAR-FTUs huggingface dataset:
High-altitude platforms for wireless communications

Provides an introduction to High-Altitude Platform Stations (HAPS) technology and its applications for wireless communications High-altitude platform stations offer a promising new technology that combines the benefits of terrestrial and satellite communication systems for delivering broadband communications to users at a low cost. They are easily deployable and easy to maintain, which is why they offer a good alternative for network operators who need to find ways to get more coverage to satisfy the increasing demand for more capacity. HAPS are usually balloons, airships or unmanned aerial systems (UAS) located in the stratosphere. An enormous interest has grown worldwide to examine their use not only for broadband communications, but also for emergency services, navigation, traffic monitoring, cellular, etc. Key features include: Unique book focusing on emerging HAPS technology and its applications Provides a thorough overview of the technology including HAPS-based communications systems, antennas for HAPS, radio propagation and channel modelling issues and HAPS networking aspects Presents various HAPS-related projects and initiatives developed throughout the world (North America, Europe and Asia-Pacific) Features a comprehensive overview on both aeronautical and telecommunications regulatory aspects, which will affect the deployment and future developments in the field of HAPS High-Altitude Platform Systems for Wireless Communications will prove essential reading for postgraduate students in the field of HAPS, engineers, developers and designers involved in the design and maintenance of HAPS, aerospace engineers, and communications system planners and researchers.
Experimental Evaluation of Locally Synthesized Biodiesel Drilling Fluid

Diesel oil has been the preferred base fluid for the formulation of oil-based drilling mud. Diesel oil has negative effects on the environment and there is a growing need for more environmentally sustainable alternatives that can be technically compared to diesel base oil. In recent times, the use of vegetable oils as drilling fluid base oil has been of interest. In this study, 1378 kg/m3 of palm kernel oil-based mud (PKOBM) and palm kernel oil biodiesel based mud (BDBM) were experimentally formulated. BDBM was synthesized by the transesterification of vegetable (palm kernel) oil. The performance of PKOBM and BDBM was then evaluated against conventional diesel oil-based mud (DOBM). The evaluation performed was based on the rheological, filtration and wall building properties, emulsion and thermal stabilities, and acute toxicity of the formulated drilling fluid systems. The results obtained from the study reveal that the mud systems (PKOBM and BDBM) show a typical Herschel-Bulkley (modified power-law) drilling mud rheological pattern at temperatures of 49°C, 66°C and 80°C. BDBM showed comparable rheological properties with better hole cleaning capacity as indicated by a lower flow index. For the filtrate loss test, BDBM exhibited a slightly lower filtrate loss compared to DOBM, whereas PKOBM had a higher fluid loss of 4.4 ml. For the filter cake and thermal stability test, there were no significant changes between DOBM and BDBM, whereas PKOBM had the least desirable performance. BDBM exhibited the most stable emulsion of 1274 volts breaking voltage and PKOBM, the least with 739 volts compared to 1169 volts breaking voltage of DOBM. This study concludes that BDBM could be used as an environmentally sustainable substitute for diesel oil-based mud (DOBM).
Morphological characteristics of Zingiberaceae in Serang District, Banten, Indonesia

Abstract. Windarsih G, Utami DW, Yuriyah S. 2021. Morphological characteristics of Zingiberaceae in Serang District, Banten, Indonesia. Biodiversitas 22: 5507-5529. Zingiberaceae, known as ginger family, is a family of monocotyledon belonging to the Zingiberales order. This family is widely used its rhizome for various purposes, especially as medicinal plant. The morphological characters can be used to help the identification of species in the field of plant taxonomy. The aim of study was to characterize the morphological traits, both vegetative and generative organs, of Zingiberaceae from Serang District, Banten. Plant specimens were collected from Serang District, Banten, including in Pabuaran, Gunungsari, and Ciomas sub-district using purposive sampling. The examination of morphological characters data was conducted through observation and documentation. There were 13 species/varieties of Zingiberaceae collected from the studied area, i.e. Amomum compactum, Alpinia purpurata, Curcuma xanthorrhiza, C. longa, C. heyneana, C. mangga, C. aeruginosa, Kaempferia rotunda, Etlingera elatior, Zingiber zerumbet, Z. officinale, Zingiber officinale var. rubrum, and Z. cassumunar, in which the generative organs were found only in eight species/cultivars of them. Based on the morphological characters of vegetative organs, thirteen species/cultivars had a similarity distance coefficient from 37% to 94%; while based on the morphological characters of both vegetative and generative organs, the eight species/cultivars had a similarity distance coefficient from 31% to 94%. The results showed that using the characters of vegetative organs data were still able to provide consistent grouping results with the generative organs.
Connections between Campos-Bolanos and Murofushi–Sugeno Representations of a Fuzzy Measure

Nonadditivity of a fuzzy measure, as an indicator of defectiveness, makes a fuzzy mea-sure less useful in applications compared to additive, probabilistic measures. In order to neutralize this indicator of defectiveness to some degree, it is important to study the representations of fuzzy measures, including, in particular, additive, probabilistic representations. In this paper, we discuss a couple of probability representations of a fuzzy measure: the Campos-Bolanos representation (CBR) and the Murofushi–Sugeno representation (MSR). The CBR is mainly represented by the Associated Probability Class (APC). The APC is well studied and the aspects of its use can be found in many interesting studies. This is especially true for the environment of interactive attributes in their identification and multi-attribute group decision-making (MAGDM) models, related to the attributes’ Shapley values and interaction indexes. The MSR is a less-used tool in practice today. The main motivation of the research presented here was to explore the connections between these two representations, which will help increase the usability of the MSR in practice in the future. In the MSR, we constructed the nonequivalent representation class (NERC) of a fuzzy measure. This probabilistic new representation is somewhat similar to the APC in the CBR environment. The proposition on the existence of the MSR induced by the CBR was proven. The presented formula of the APC by the NERC was obtained. The duality property of fuzzy measures for the CBR is well studied with respect to fuzzy measures—Choquet second-order dual capacities. Significant properties were proven for the representation of a monotone expectation (ME) under the NERC conditions: as is known, the necessary and sufficient conditions for the existence of the second-order Choquet dual capacities are proven in the terms of the APC of a CBR and ME. After establishing the links between the APC of a CBR and the NERC of a MSR, we proved the same in the case of the MSR. A recursive connection formula between the interaction indexes, Shapley values, and the probability distribution of the NERC of a two-order additive fuzzy measure was obtained in the environment of a general MAGDM. A new distance concept was introduced for all fuzzy measures’ classes defined in finite sets in terms of the NERC. The distance between two fuzzy measures was defined as the distance between their NERCs. This distance is equivalent to the distance defined on the same class under the conditions of the APC of a CBR. The correctness proposition on the extension of the distance between fuzzy measures for the NERC was preserved: distances between any two fuzzy measures and between their dual fuzzy measures also coincided in the CBR as the MSR. After parameterization, the calculation formula of the new distance was obtained. An illustrative example was considered in order to easily present the obtained results. The connection schemes between the CBR and MSR and the sequential scheme of key facts and results obtained are presented at the end of this work.
Accelerated Generation of a Pinhole-Type Holographic Stereogram Based on Human Eye Characteristics in Near-Eye Displays

In near-eye displays (NEDs), issues such as weight, heat, and power consumption mean that the rendering and computing power is usually insufficient. Due to this limitation, algorithms need to be further improved for the rapid generation of holograms. In this paper, we propose two methods based on the characteristics of the human eye in NEDs to accelerate the generation of the pinhole-type holographic stereogram (HS). In the first method, we consider the relatively fixed position of the human eye in NEDs. The number of visible pixels from each elemental image is very small due to the limited pupil size of an observing eye, and the calculated amount can be dramatically reduced. In the second method, the foveated region rendering method is adopted to further enhance the calculation speed. When the two methods are adopted at the same time, the calculation speed can be increased dozens of times. Simulations demonstrate that the proposed method can obviously enhance the generation speed of a pinhole-type HS.
Tree species diversity of Pegunungan Bintang, Papua, Indonesia as potency of wood supply

Abstract. Murdjoko A, Djitmau DA, Sirami EV, Siburian RHS, Ungirwalu A, Mardiyadi Z, Wanma JF, Mofu WY, Marwa J, Susanti CME, Tokede MJ, Imburi CS, Sagrim M, Mamboai H, Sonbait LY, Dwiranti F, Salosa YY, Paembonan JB, Wiradyo ET, Unenor E, Benu NMH, Saragih ASB. 2021. Tree species diversity of Pegunungan Bintang, Papua, Indonesia as potency of wood supply. Biodiversitas 22: 5645-5655. The tropical rainforest is a primary global concern in many aspects. Therefore, this study aimed to describe the tree diversity in Pegunungan Bintang Forest, Papua, Indonesia. There are 10 dominant species from seedlings, saplings, poles, and trees, indicating the timber production potency. This study set systematic plots in Murkim and Teiraplu Sub-districts to collect taxonomic information, diameter, and clear bole height samples. The results showed that the forest was categorized as a tropical mixed due to diverse tree species. The leading plant families included Moraceae, Myrtaceae, Euphorbiaceae, Lauraceae, and Anacardiaceae, with various seedlings, saplings, poles, and trees. The potency of timber was reflected through sample distribution using the reverse J-shaped curve, identifying the merchantable trees with larger and smaller diameters as re-established. However, timber utilization management requires silvicultural treatments using selective logging by diameter limit and logging cycle for forest sustainability.
Early Cretaceous back‐arc basin basalt‐type gabbros in the southeastern Tibetan Plateau: Implications for Neo‐Tethyan oceanic slab subduction

Although progress has been made in defining and explaining the temporal and spatial distributions of Neo‐Tethyan magmatism in the Tibet–Himalaya region, the correlation of magmatic suites in the SE Tibetan Plateau remains poorly constrained. This paper reports zircon U–Pb dating, geochemistry, and Sr–Nd isotope compositions of a concealed gabbroic unit (coverage area of >6.0 km2) in the southern Lancangjiang tectonic zone, western Yunnan, SW China. Zircon 206Pb/238U ages of 143–133 Ma indicate that the unit formed during the Early Cretaceous (ca. 139.7 Ma). The gabbro samples have variable MgO (7.88–16.1 wt%; Mg# = 58–74) and relatively low TiO2 (0.76–1.24 wt%) and total‐alkali (K2O + Na2O = 2.61–4.06 wt%) contents. The samples exhibit weakly fractionated rare earth element (REE) patterns with slight depletion in light REEs and negligible Eu anomalies. In a primitive‐mantle‐normalized element‐variation diagram, the gabbros, display variable enrichment in large‐ion lithophile elements and relatively flat patterns of high‐field‐strength elements. Initial 87Sr/86Sr ratios of 0.7079 to 0.7142 and relatively depleted εNd(t) values of +3.96 to +4.84 are similar to those of the mantle source of back‐arc basin basalts (BABBs) in the central Lhasa Block and mid‐ocean ridge basalt in the Indus–Tsangpo Suture Zone. These various characteristics suggest that the gabbroic unit was derived from a shallow and depleted mantle source by relatively high‐degree partial melting in the spinel stability field. The parental magma underwent slight crustal contamination, as well as fractional crystallization of clinopyroxene. The studied gabbros have distinct BABB‐type geochemical affinities similar to those of the Okinawa BABB. Combining our data with the coeval occurrence of a continental rift basin (the Simao–Lanping Basin) leads us to suggest the existence of a back‐arc rifting setting in the SE Tibetan Plateau during the Jurassic–Cretaceous. This setting can also be geochronologically and genetically correlated to the back‐arc basin developed within the Lhasa Block. These settings and constituent characteristics formed as a result of Neo‐Tethyan oceanic slab subduction during the late Mesozoic.
SigRep: Toward Robust Wearable Emotion Recognition With Contrastive Representation Learning

Extracting emotions from physiological signals has become popular over the past decade. Recent advancements in wearable smart devices have enabled capturing physiological signals continuously and unobtrusively. However, signal readings from different smart wearables are lossy due to user activities, making it difficult to develop robust models for emotion recognition. Also, the limited availability of data labels is an inherent challenge for developing machine learning techniques for emotion classification. This paper presents a novel self-supervised approach inspired by contrastive learning to address the above challenges. In particular, our proposed approach develops a method to learn representations of individual physiological signals, which can be used for downstream classification tasks. Our evaluation with four publicly available datasets shows that the proposed method surpasses the emotion recognition performance of state-of-the-art techniques for emotion classification. In addition, we show that our method is more robust to losses in the input signal.
The Epidemiological Study, Clinical Signs, Complications, and Treatment of Cellulities in Children

Background and Aim: Cellulite is the most common soft tissue infection in children. Children are prone to cellulite because they are more disposed to trauma, insect or animal bites, wounds, and scratches. This study aimed to determine the frequency of causes, complications, and cellulite treatment in children referred to Hazrat Masoumeh Hospital in Qom City, Iran. Materials and Methods: This descriptive study was performed on all patients admitted to Hazrat Masoumeh Hospital in Qom during 2013-2020. The study data were extracted from patients’ medical records and statistically analyzed. Results: The Mean±SD age of the patients was 42.94±38.15 months. Their male/female sex ratio was almost one. The most affected areas were the lower extremities (43%), the upper extremities (26.5%), and the face and eyes (6.6%). The most common clinical manifestations were edema (75%), redness (62%), and fever (38%). The most commonly prescribed antibiotics were ceftriaxone (47%), cloxacillin (34.7%), and clindamycin (28%). The most common underlying causes were bites (16%), trauma (10%), and previous wounds (9%). Complications were abscesses (10%) and osteomyelitis (1.6%). Their Mean±SD values of erythrocyte sedimentation rate, C-reactive protein, and white blood count were 32.46±26.03 (mm/h), 24.14±23.07 (mg/dl), 12261±4587 (cell/μL), respectively. Preference was seen with Polymorphonuclear leukocytes (PMNs) in 80.5% of the cases. Blood culture was positive in 8% of the patients. According to the antibiogram response, the highest resistance was seen against cefazolin and then ceftriaxone, and the highest sensitivity to imipenem and ceftazidime. Conclusion: Finally, due to the limitations of retrospective research in collecting information, future research should focus on evaluating specific treatments and diagnostic methods for diseases such as cellulite in Iran. Future research can determine the prevalence of organisms involved in our country, as well as the type of appropriate treatment for all inpatients and outpatients.
Experiences of Dutch Midwives Regarding the Quality of Care during the COVID-19 Pandemic

This study assessed how the quality of care during the COVID-19 pandemic has been experienced by Dutch midwives. At the beginning of May 2020, 15 Dutch midwives were interviewed during the first wave of the pandemic. The interviews included questions based on the value-based healthcare framework by Porter. The interviews were transcribed verbatim, coded, and analyzed according to recurrent themes using the directed content analysis approach. Key themes identified included high quality midwifery care, information provision, costs, under/over treatment, interprofessional collaboration, and shared decision making. The quality of midwifery care during the COVID-19 pandemic was experienced to be sufficient, given the challenging circumstances. The midwives experienced the lack of face-to-face check-ups to be problematic. Unclear information and lack of personal protective equipment caused stress and confusion, and they worked an additional 2–4 h per working day. Some pregnant women were hesitant to call or visit them when they thought something was wrong. The midwives perceived some advantages in using video or telephone calls. Considerations for future pandemics include an additional face-to-face check-up between 16 and 27 weeks of pregnancy and one postpartum visit. For post-pandemic care, providing a check-up through telephone or video call could be offered in certain cases.
Topological Optimization of Circular SAW Resonators: Overcoming the Discreteness Effects

Recently, we proposed a ring-shaped surface acoustic wave (SAW) resonator sensitive element design, as well as analyzed its characteristics and suggested its optimization strategy, with major focus on their temperature stability. Here, we focus on further optimization of the design to narrow the bandwidth and improve signal detection, while taking into account typical technological limitations. Additionally, the purpose of design optimization and modeling is to check the preservation of operability in the case of lithography defects, which is the most common technological error. For that, we suggest structural alteration of the interdigital transducer (IDT) that leads to its partial fragmentation. Using COMSOL Multiphysics computer simulations, we validate several IDT options and show explicitly how it could be optimized by changing its pin geometry. Based on the results of the study, prototyping and printing of ring resonators on a substrate using photolithography will be carried out.
Side effects of Sinopharm Vaccine experienced by healthcare professionals of Holy Family Hospital, Rawalpindi, Pakistan

Objectives: To determine the gender and age based disparities in side effects among healthcare workers in response to COVID-19 (Sinopharm) vaccination Subjects & Methods: Total 216 healthcare workers were vaccinated against COVID-19 by administering Sinopharm vaccine during February and March 2021 at Infectious Diseases Department of Holy Family Hospital Rawalpindi were enrolled in the study through consecutive sampling. Data for this cross-sectional descriptive study was gathered pertinent to age, gender and side effects of Sinopharm vaccination. The information regarding vaccination side effects was inquired through telephonic calls. Data was analyzed by means of SPSS version 25.0. Results: Mean age of healthcare workers in our study was 35.7 ± 9.5 years. Most (54.6%) of them were females. About 79.2% of health professionals were 21-40 years old. Side effects after first dose of Sinopharm vaccine were experienced by 46.3% males and 42.4% females. About 45.2% and 42.3% males and females respectively overlooked the second jab adversity. Greater proportion (43.6%) complained of vaccine related side effects after the second dose than 37.5% subjects who noted side effects after the first dose of vaccine. Bodyaches, injection site pain, headache and fever were established as the commonest post-vaccination side effects. Conclusion: Side effects resulting from Sinopharm vaccine among our healthcare personnel were minimal. Fortunately none of them complained of serious aftereffects. Despite the COVID vaccination, our healthcare workers should strictly adhere to COVID SOPs amidst pandemic in order to avoid catastrophe in future.
PROCESS ANALYSIS AND ASPEN PLUS SIMULATION OF NUCLEAR-BASED HYDROGEN PRODUCTION WITH A COPPER-CHLORINE CYCLE

Thermochemical processes for hydrogen production driven by nuclear energy are promising alternatives to existing technologies for large-scale commercial production of hydrogen, without dependence on fossil fuels. In the Copper-Chlorine (Cu-Cl) cycle, water is decomposed in a sequence of intermediate processes with a net input of water and heat, while hydrogen and oxygen gases are generated as the products. The Super Critical Water-cooled Reactor (SCWR) has been identified as a promising source of heat for these processes. In this thesis, the process analysis and simulation models are developed using the Aspen Plus chemical process simulation package, based on experimental work conducted at the Argonne National Laboratory (ANL) and Atomic Energy of Canada Limited (AECL). A successful simulation is performed with an Electrolyte Non Random Two Liquid (ElecNRTL) model of Aspen Plus. The efficiency of the cycle based on three and four step process routes is examined in this thesis. The thermal efficiency of the four step thermochemical process is calculated as 45%, while the three step hybrid thermochemical cycle is 42%, based on the lower heating value (LHV) of hydrogen. Sensitivity analyses are performed to study the effects of various operating parameters on the efficiency, yield, and thermodynamic properties. Possible efficiency improvements are discussed. The results will assist the development of a labscale cycle which is currently being conducted at the University of Ontario Institute of Technology (UOIT), in collaboration with its partners.
Suicide intervention among aging network providers

ABSTRACT Older adults are at risk for mental health concerns, such as social isolation and suicide. Risk factors to suicide among older adults, such as loneliness and social isolation, may be impacted by the COVID-19 pandemic. Gatekeepers in the community are a significant source of identification and referral of older adults at risk of mental and physical health concerns. In this study, we sought to discover whether natural helpers in the Aging Service Network (ASN), including volunteers and providers (n = 93) obtain and utilize suicide-intervention skills with older adults who receive home-delivered meals (HDM) after being trained in a 14-hour evidenced based training. Paired-sample t-tests yielded significant results at pre- and post-test measures of suicide intervention response skill acquisition, and over 19% of trained participants reported using suicide intervention skills over six months. Implications for future training and research are discussed.