Miracle-dz/UniFAR-FTUs huggingface dataset:
The Design and Control of a Biomimetic Binocular Cooperative Perception System Inspired by the Eye Gaze Mechanism

Research on systems that imitate the gaze function of human eyes is valuable for the development of humanoid eye intelligent perception. However, the existing systems have some limitations, including the redundancy of servo motors, a lack of camera position adjustment components, and the absence of interest-point-driven binocular cooperative motion-control strategies. In response to these challenges, a novel biomimetic binocular cooperative perception system (BBCPS) was designed and its control was realized. Inspired by the gaze mechanism of human eyes, we designed a simple and flexible biomimetic binocular cooperative perception device (BBCPD). Based on a dynamic analysis, the BBCPD was assembled according to the principle of symmetrical distribution around the center. This enhances braking performance and reduces operating energy consumption, as evidenced by the simulation results. Moreover, we crafted an initial position calibration technique that allows for the calibration and adjustment of the camera pose and servo motor zero-position, to ensure that the state of the BBCPD matches the subsequent control method. Following this, a control method for the BBCPS was developed, combining interest point detection with a motion-control strategy. Specifically, we propose a binocular interest-point extraction method based on frequency-tuned and template-matching algorithms for perceiving interest points. To move an interest point to a principal point, we present a binocular cooperative motion-control strategy. The rotation angles of servo motors were calculated based on the pixel difference between the principal point and the interest point, and PID-controlled servo motors were driven in parallel. Finally, real experiments validated the control performance of the BBCPS, demonstrating that the gaze error was less than three pixels.
Epibiont-Marine Macrophyte Assemblages

The biology and ecology of marine seagrasses and macroalgae have likely been infl uenced by the presence of epibionts for millions of years, given the evolutionary history of both groups, and the potential for co-evolution (Taylor and Wilson 2003). Epibionts are ubiquitous in marine environments, span numerous taxonomic divisions and phyla, occur on a wide taxonomic diversity of basiphytes (hosts), and can either be host-specifi c (obligate) or host non-specifi c (facultative). Their importance in ecosystem functioning has been well documented in systems ranging from estuaries to subtidal rocky reefs, as well as from tropical to polar regions (Thomsen et al. 2010). As widely recognized ecosystem engineers and foundation species, seagrasses and their associated epibionts have been widely studied (e.g., Tomas et al. 2005, Cook et al. 2011, York et al. 2012, Lobelle et al. 2013; Fig. 1). While the majority of algal epiphytes are located on older regions of seagrass leaves, epibionts can also occur
Study on Change of Soil Organic Matter in the Process of Wetland Ecological Restoration in Ruoergai Plateau

The change of quantity, quality and distribution, of soil organic matter in the process of wetland ecological restoration was studied with field investigation and laboratorial analysis and the effect of ecological restoration on soil fertility in Ruoergai Plateau was expored. The results indicated that there was an ecological succession of wetland soil types and their restoration successive series showed aeolian sandy soil→meadow soil→bog soil→peat soil in the process of wetland ecological restoration. With the restoration of wetland ecosystem, the amount of soil organic carbon increased greatly and distribution characteristic of soil organic matter on profile showed surface layer (0-20cm)subhorizon (20-40cm)ground layer (40-60cm), the order of oxidation stability coefficient of soil organic matter was peat soilbog soilmeadow soilaeolian sandy soil and the oxidation stability of soil organic matter was enhanced. In the restoration successive series of aeolian sandy soil→meadow soil→bog soil→peat soil, the content of soil humic acid (HA) and E4 value of HA increased while E4/E6 value of HA decreased, the conent order of total acid group, carboxyl group and hydroxyl group was also peat soilbog soilmeadow soilaeolian sandy soil, the quality of soil humus improved. There was a high coordination between change of the quantity, distribution and quality of soil organic matter and wetland ecological environment in Ruoergai Plateau, wetland ecological restoration was helpful to the improvement of soil fertility.
A Comprehensive Study of Security in Cloud Computing

Cloud computing has become a popular model for reducing cost of business, improvise quality of services, and provide good & secure computing. It acts as a spectrum of substantial interest among IT professionals, technocrats & business leaders due to these proven potentials. Numerous emerging computing paradigms a.k. a database outsourcing serves as future advantages of cloud computing. With the increasing speed of its popularity, many security questions are arising with their respective solutions aiming to give a better understanding of their complex scenario, in this paper we will provide a comprehensive view over security in context of cloud computing and also provide a view of current status of security at present. To start with, we'll take a look at various Cloud computing models, cloud computing deploy-ment models, key issues in security along with challenges in provocation of permissions to various platforms.
Inversión extranjera directa en México: comparación entre la inversión procedente de los Estados Unidos y del resto del mundo

Are there differences between the foreign direct investment (fdi) that Mexico receives from the United States and the rest of the world? This paper describes the fdi received by the country between 1999 and 2013, detailed according to origin. The flow of fdi to Mexico as a whole and to its component states is analyzed, and differences in temporal and spatial patterns of fdi are identified together with their determining factors. This analysis allows us to better understand the fdi received by Mexico, identify regional vulnerabilities and inform decision-making geared towards promoting and retaining investment.
Antiviral Defence Mechanisms during Early Mammalian Development

The type-I interferon (IFN) response constitutes the major innate immune pathway against viruses in mammals. Despite its critical importance for antiviral defence, this pathway is inactive during early embryonic development. There seems to be an incompatibility between the IFN response and pluripotency, the ability of embryonic cells to develop into any cell type of an adult organism. Instead, pluripotent cells employ alternative ways to defend against viruses that are typically associated with safeguard mechanisms against transposable elements. The absence of an inducible IFN response in pluripotent cells and the constitutive activation of the alternative antiviral pathways have led to the hypothesis that embryonic cells are highly resistant to viruses. However, some findings challenge this interpretation. We have performed a meta-analysis that suggests that the susceptibility of pluripotent cells to viruses is directly correlated with the presence of receptors or co-receptors for viral adhesion and entry. These results challenge the current view of pluripotent cells as intrinsically resistant to infections and raise the fundamental question of why these cells have sacrificed the major antiviral defence pathway if this renders them susceptible to viruses.
Analysis of the Urban Social Areas in Urumqi

This paper uses the factorial ecological analysis and cluster analysis(Ward's method)to explore the social spatial structure of Urumqi in 2011.The result reveals that major factors under consideration for the components of social structure in Urumqi include minority population,the intelligentsia,workers and retirees;government civil servants,higher management and service staff,floating population from outside Xinjiang and agriculture population.According to the factor scores in 2011,the city of Urumqi can be divided into six types of social areas:(1)ethnically mixed areas,located in the eastern part;(2)the intelligentsia areas,exhibiting a multi-nuclear pattern;(3)areas of workers and retirees, located in the northwestern,northeastern and eastern parts;(4)densely-populated areas with civil servants,senior management and service staff,located in the urban core areas,which are also the most developed areas of Urumqi;(5)areas of floating population from outside, located around the core area;(6)agricultural areas,located in the northern suburbs.On the whole,the concept model of the urban social structure in 2011 mainly exhibits a sectoral and multi-nuclear pattern with no obvious concentric structure.Urumqi's socio-spatial structure has formed on the basis of physical geography in the 250 years of development,which has been influenced by factors of socioeconomic development,government policies and urban planning.Urumqi has in common with and also differs from major domestic cities in aspects of the impact factors of social areas,ethnic composition,occupational composition and spatial distribution of the floating population,and the pattern of social spatial structure.
Availability of UAV Fleet Evaluation Based on Multi-State System

Unmanned Aerial Vehicle (UAV) applications are extended extremely. Some applications need to use several UAVs for a general mission which can be considered a UAV fleet. One of the important characteristics for the evaluation of a UAV or UAV fleet is reliability. There are studies in which methods for analysis of their reliability are considered. Reliability analysis of UAV fleets is less frequently studied, although a single UAV cannot be performed in many applications and requires the involvement of multiple UAVs. Typically, this analysis is based on evaluating two states as operational/functioning and faulting. This paper proposes a new method to calculate the availability of a UAV fleet as one of the reliability characteristics. Unlike well-known UAV fleet analysis approaches, in this paper, the availability is studied based on a mathematical model of a Multi-State System (MSS). MSS allows us to examine more than two states (operational and faulty) of the system, so this analysis is more detailed. In this paper, based on MSS, the analysis of various topologies of UAV fleets is implemented. This mathematical model is used for the analysis and evaluation of topologies of homogeneous and heterogeneous UAV fleets, which can be irredundant or redundant hot stable systems. The interpretations of different topologies of fleets as typical structures of MSS (series, parallel, $k$ -out-of- $n$ ) are considered. New mathematical definitions of the availability of UAV fleets of different topologies based on MSS structure function are proposed. These definitions allowed us to consider the influence of the number of UAVs on the UAV fleet availability and compare the availabilities of considered topologies of fleets.
A 299–315-GHz Dual-Band Radiator Array With Cascaded Transmission Line-Based Feedback Network for Phase Noise Improvement

This paper presents a THz radiator array integrating two elements, each of which consists of two fundamental oscillators operating at half of the output frequency, a push-push frequency doubler and an on- chip square-shaped loop antenna. To improve the phase noise for the fundamental oscillators, a feedback network containing a long cascaded transmission line featuring high frequency selectivity is proposed. Then, the signal power is extracted through the use of a compact coupled line to drive the doubler, thereby making the integration of a multi-element array more manageable. Furthermore, the strength of the coupling between the two adjacent oscillators within each element is designed properly, yielding dual-band operation to extend the frequency range. Fabricated in a 65-nm bulk CMOS process, the radiator chip assembled with a crystal slab and a silicon lens achieves output frequency ranging from 299.2 to 314.8 GHz. The measured peak effective isotropically radiated power (EIRP) and radiated power are 3.9 and −16.1 dBm, respectively, while consuming 93-mW DC power from a 1.4-V power supply. The phase noise measures −79.9 dBc/Hz at 1-MHz offset from 312 GHz, corresponding to a figure-of-merit (FoM) of 170.1 dBc/Hz. The core area of the chip is $0.65\times 0.21$ mm2, excluding the pads.
Track Allocation Optimization in Multi-Direction High-Speed Railway Stations

Track allocation optimization in railway stations is one of the most fundamental problems for scheduling trains, especially in multi-direction high-speed railway stations. With the construction of high-speed rail networks, this kind of station has become increasingly common. However, the track allocation depends not only on the station tracks, train timetable, and rolling stock plan, but also on the resources in the station throat area. As a result, an effective track allocation plan becomes significant but also difficult. In this paper, we consider all these factors to make the results more practicable and an integer linear model that minimizes the total occupation time of resources in the throat area is presented. A flexible track utilization rule is also adopted to this model to fit the characteristics of the multi-direction station. Meanwhile, a detailed explanation of resources’ occupation time is illustrated to facilitate the representation of the conflicting constraints. To resolve these issues, we use a commercial solver with its default parameters. A computational experiment of a station is conducted to verify the effectiveness of the proposed model. The resources utilization plan indicates that the capacity of a station is limited by the throat area, rather than by the station tracks.
Bioavailability of Nutrients of Public Health Concern and their Association with the Animal/Plant Ratio in Diets of Female Residential Students of Bangladesh

Students, particularly female students, living in university dormitories are susceptible to various nutritional deficiencies due to their improper dietary practice and poor diet quality. Whether food originates from animal or plant sources contributes greatly to the quality of their diets in terms of nutritional adequacy. This study made a bioavailability assessment of four nutrients (vitamin A, iron, protein, and zinc) from students’ diets followed by examining whether bioavailability relates to the animal/plant ratio (A/P) in the diets of female residential students (FRS) of Bangladesh. Previously published dietary algorithms or conversion factors specific to different food groups were used to assess nutrient bioavailability in the diets of 180 (60 for iron) FRS of the University of Dhaka. Nutrient inadequacy was evaluated using i) an individual diet approach (estimating bioavailability from individual diets), and ii) a dietary pattern approach (presuming average bioavailability for mixed diets). The mean absorptions of iron and zinc, quality of protein, and conversion factor for β-carotene were 15.5%, 35.1%, 66.1%, and 17:1, respectively. Among the individual diets, a large range in bioavailability was observed, which was explained inadequately by their A/P. There was a significant difference in inadequacy prevalence when iron and protein bioavailability from individual diets were compared with bioavailability estimates calculated applying average conversion factors for mixed diets. The A/P could not necessarily predict the nutrient bioavailability in FRS diets. Hence, it is important to consider the diet composition when evaluating nutrient adequacy in the diets of FRS and other students. Bangladesh J. Nutr. Vol. 34, December 2020, P: 55-64
Selecting Target Species for Urban Ecological Network Construction - Focus on Pangyo New Town -

With recent emphasis on the creation of environment-friendly new towns, introduction of ecological facilities for habitation and migration of wild animal's species is requested when developing new towns. In order to introduce such facilities, building an eco-network within the site based on the connectivity of the source area and habitats is essential in new town development. Therefore, this study mainly aimed at selecting species targeted for building an eco-network in Pangyo new town, which is intended to be an environment-friendly city. Therefore, criteria for selecting target species were generated. Then, species observed within the site through field surveys and literature review was evaluated based on the selection criteria and items. By totaling the score, a list of appropriate targeted species was finalized. Among species surveyed and observed in the site, appropriate target species that may be selected for Pangyo new town's eco-network include Falco tinnunculus interstinctus, Accipiter soloensis, Picus canus, Paradoxornis webbiana, Parus palustris, Parus ater, Parus major and Passer montanus Egretta in birds, Asiatic chipmunk, Nyctereutes procyonoides in mammals. For Pangyo new town, it is essential to create living environment and build a network for major wild animal species within the site based on target species. This will play a crucial role in building a reasonable ecological network enabling harmonious co-existence between mankind and nature. In order to build an ecological network successfully, follow-up studies need to be conducted on restoration technology and methods required for creating habitats appropriate to target species.
Formation de l’intention entrepreneuriale des jeunes

Résumé Objet : Cette recherche analyse les effets des facteurs psychologie et du soutien social sur la formation de l’intention entrepreneuriale des jeunes. Méthodologie : Pour mieux appréhender le phénomène, nous avons réalisé un questionnaire qui est administré à 105 jeunes des universités du Bénin. Le traitement et l’analyse des données est fait par la modélisation à équations structurelles sous les logiciels SPSS 24 et SmartPLS3 Résultats : Les résultats révèlent que la formation de l’intention entrepreneuriale des jeunes est influencée par la réussite individuelle et la création de valeur. Les résultats montrent que le soutien social médiatise la relation entre la réussite entrepreneuriale et la formation de l’intention entrepreneuriale et les facteurs psychologiques modèrent successivement la relation entre la création de valeur et la formation de l’intention entrepreneuriale d’une part et d’autre part la relation entre la réussite entrepreneuriale et la formation de l’intention entrepreneuriale. Mots clés : Formation, intention entrepreneuriale, facteurs psychologiques, soutien social
Electrical Characterization of Shielded TSVs With Airgap Isolation for RF/mmWave Applications

In this article, shielded and airgap-isolated through-silicon vias (TSVs) are fabricated and measured up to 50 GHz. The unique TSV configuration is low-loss and electrically shielded, and the fabrication process includes a trench encapsulation process, improving surface planarity. TSV is an essential technology in heterogeneous integration, allowing chip manufacturers to stack disaggregated chiplets in a cost-efficient manner. Today’s mobile and networking needs are growing and require even faster communication links, calling for systems that can support higher frequency signals in the radio spectrum. Using standard semiconductor manufacturing processes, ring-shaped airgap trenches were etched and encapsulated, surrounding the 10-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula>-diameter, 50-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula>-tall signal TSV from its semicoaxial shielding TSVs. Once encapsulated, the surface is planar and allows subsequent photolithography steps to be performed. Simulation results showed that TSV shielding reduced noise coupling from −30.6 to −62.4 dB compared to GSG TSVs. Measurement results indicated that the airgap isolation reduced total capacitance from 12.9 to 7.95 fF, a 38.4% reduction, and conductance from 1.31 to 0.634 mS, a 51.6% reduction.
GC-MS Analysis of Phytochemical Composition, Antibacterial and Antioxidant Properties of Ethanolic Extract of Detarium microcarpum (OFOR)

The increasing use of Detarium microcarpum as food and in treatment of different ailment and the understudy of its bioactive and chemical composition resulted to this work on GCMS studies of phytochemical composition, antibiotic and antioxidant properties of ethanolic extract of ofor (Detarium microcarpum). Ethanol extract of seed of Detarium microcarpum showed the presence of the various phytochemicals; saponin, flavonoids, steroid, proteins, anthraquinnones and alkaloids. The following phytochemicals were absence from the sample; tannins, terpenoids, cardiac glycoside, phulobactanins, phenolic compounds and reducing sugars. GCMS analysis showed the presence of 9, 12-Octadecadienoic acid (Z,Z)- as a main compound in the extraction. The aqueous extraction showed 28.59% and the least compound showed methyl tetradecanoate and the aqueous extraction is 1.13%. The activities of 10mg/2ml of the seed extract on selected bacterial organisms with Minimium Inhibition Concentration (MIC) of Eseterichia coli (10μl), Pseudomonas aeruginosa (100μl) Staphylococcus aureus (50μl) and Bacillus suptili (20μl) justified the use of the plant seeds for various treatments by local traditional practitioners. Antioxidant activities of Detarium microcarpum seed determined by the free radical scavenging activity (DPPH) assay method indicated a steady increase in the scavenging activity of free radicals in all extracts from 322 to 1011μg/mL. The usage of this ornamental plant should be promoted as an alternative for synthetic chemicals as it is easily available, grown and maintained, accessible and affordable. The high antioxidant potential, free radical scavenging activity and anti-oxidative enzymes of Detarium microcarpum should be utilized to develop new drug candidates for antioxidant therapy
Effects of The Peak to Baseline Ratio on Phase Difference of The Coupled Hodgkin Huxley Neurons

Phase response curve (PRC) examines how weak perturbation effects spike time of neurons. Peak-to- baseline ratio is one of the most important specification of type II PRC neurons a nd it gives a brief explanation of PRC in terms of numerical sense. In this study, Hodgkin Huxley (HH) model neurons coupled via gap junction under three different applied currents were investigated in terms of PRCs , peak-to-baseline ratio and required time interval of minimum phase difference. Although the used three HH model neurons had same type of excitability and PRCs, the shapes and maximum and minimum peaks were varied. The close relationship between peak- to-baseline ratio and the required time interval of minimum phase difference of coupled neurons were found. To sum up, the results of our simulations indicated that the required time of minimum phase differences of two coupled HH neurons via gap junction were related to calculated peak-to-baseline ratios.