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ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57

Advanced space debris removable technique and proposed laser ablation technique: A review

From the beginning of space era human being has launched more than 5500 rockets in space having different types of payload for various space mission carried out. These payloads, mostly satellites have many types of uses, ranging from earth observation to communication. These satellites, post usage hold ...

Fishing in the stream: Similarity search over endless data

Similarity search is the task of retrieving data items that are similar to a given query. In this paper, we introduce the time-sensitive notion of similarity search over endless data-streams (SSDS), which takes into account data quality and temporal characteristics in addition to similarity. SSDS is ...

Secondary sex ratio in relation to exposures to polychlorinated biphenyls, dichlorodiphenyl dichloroethylene and methylmercury

ABSTRACT This study was undertaken to assess the potential impact of maternal exposures to polychlorinated biphenyl (PCB), dichlorodiphenyl dichloroethylene (DDE) and methylmercury on the secondary sex ratios (the ratio of male to female live births) over a span of 23 years. The study includes prospective ...

Development of a fishhook-type robot hand: EEL-hand

In many of the grippers and robot hands developed so far, it is assumed that the target object is fixed firmly to the robot. However, when the object has a complicated shape, it is not easy to give a sufficient gripping force to the contact points. The hand proposed in this paper has a multi-joint 1-finger, ...

Electrification in Non-Interconnected Areas: Towards a New Vision of Rurality in Colombia

In recent years, different energy projects have been developed in the rural sector in Colombia. The projects' goal is to provide clean technologies to people in remote areas in order to increase their productive capacities and improve their quality of life. Production processes in these areas stimulate ...

A distributed pipeline for DIDSON data processing

Technological advances in the field of ecology allow data on ecological systems to be collected at high resolution, both temporally and spatially. Devices such as Dual-frequency Identification Sonar (DIDSON) can be deployed in aquatic environments for extended periods and easily generate several terabytes ...

Grasping virtual fish: A step towards robotic deep learning from demonstration in virtual reality

We present an approach to robotic deep learning from demonstration in virtual reality, which combines a deep 3D convolutional neural network, for grasp detection from 3D point clouds, with domain randomization to generate a large training data set. The use of virtual reality (VR) enables robot learning ...

Fishermen’S Expert Views on the Causes of Fish Poisoning in Fiji: An Investigation through Data Mining Technique

Fish poisoning is a common cause of human illness in Fiji. Poisonous substances can be initially ingested by fish that typically feast upon marine green growth, spilt oil, dirty water and silted rubbish. Humans can fall ill when eating these infected fish. This is of particular concern given that fish ...

Characterization of skin patterns in Pseudoplatystoma Magdaleniatum

Pseudoplatystoma Magdaleniatum is one of the most representative fish species from the Magdalena river basin in Colombia. This endemic catfish is highly valuable from the economic and environmental perspectives. Nevertheless, it is currently under threat because of the indiscriminate fishery and the ...

Underwater explosion detection with SMS prompt

Dynamite fishing is a problem in the Philippines. Some fishermen are only after getting as many fish as possible without regard to the damage they are doing to the environment. The purpose of this device is to be able to put a detection system in fishing areas or protected areas to warn coast guards ...

Capacities-based distant-water fishery cold chain network design considering yield uncertainty and demand dynamics

In distant-water fishing industry, production, supply and distribution activities are realized in a dynamic environment including uncertainties of resources in fishing grounds and demands from global markets. Moreover, the capacity of the port cold storage is of great importance to the cold chain network ...

Supporting system for fishery resource management utilizing convolutional neural network

In recent years, the amount of parent fish stock of Pacific bluefin tuna is decreasing. For this reason, efforts are underway to protect tuna resources in countries around the world. In Japan, an upper limit value of the catch amount is set, and when there is a possibility that the catch amount may ...

Bio-invasive ascidians in Ireland: A threat for the shellfish industry but also a source of high added value products

ABSTRACT In October 2016, a rapid assessment survey of ascidian species was conducted in shellfish farms at Killary Fjord, in the west of Ireland. Two non-indigenous solitary ascidians Ascidiella aspersa and Corella eumoyta were recorded for the first time in shellfish farms at this location. Both ...

Medicines quality assurance to fight antimicrobial resistance

Use of black soldier fly larvae (Hermetia illucens) to substitute soybean meal in ruminant diet: An in vitro rumen fermentation study

Aim: This experiment aimed to evaluate substitution of soybean meal (SBM) by black soldier fly (BSF) larvae meal in a napier grass diet as performed by an in vitro rumen fermentation system. Materials and Methods: Samples of napier grass, SBM, and BSF larvae age 1 week (BSF1) and 2 weeks (BSF2) were ...

Assessment of genetic diversity of an endangered tooth-carp, Aphanius farsicus (Teleostei: Cyprinodontiformes: Cyprinodontidae) using microsatellite markers

Genetic structure of an endemic tooth-carp fish, Aphanius farsicus from four different water bodies in the Maharlu Lake basin was investigated by applying five microsatellite markers. All of the five examined microsatellite loci showed polymor-phism pattern. A total of four alleles were detected at ...

Nature versus nurture? Consequences of short captivity in early stages

Abstract Biological changes occurring as a consequence of domestication and/or captivity are not still deeply known. In Atlantic salmon (Salmo salar), endangered (Southern Europe) populations are enhanced by supportive breeding, which involves only 6 months of captive rearing following artificial spawning ...

Spatial, Temporal, and Dietary Variables Associated with Elevated Mercury Exposure in Peruvian Riverine Communities Upstream and Downstream of Artisanal and Small-Scale Gold ...

Artisanal and small-scale gold mining (ASGM) is a primary contributor to global mercury and its rapid expansion raises concern for human exposure. Non-occupational exposure risks are presumed to be strongly tied to environmental contamination; however, the relationship between environmental and human ...

Microwave-Enhanced Photolysis of Norfloxacin: Kinetics, Matrix Effects, and Degradation Pathways

Degradation of norfloxacin (NOR) was studied using a combination of microwave and UV irradiation methods (MW/UV process). Remarkable synergistic effect was found between MW and UV light. The removal rate with the MW/UV process was much faster than that with UV light irradiation only. Degradation of ...

Efficient Removal of Tetracycline from Aqueous Media with a Fe3O4 Nanoparticles@graphene Oxide Nanosheets Assembly

A readily separated composite was prepared via direct assembly of Fe3O4 magnetic nanoparticles onto the surface of graphene oxide (GO) (labeled as Fe3O4@GO) and used as an adsorbent for the removal of tetracycline (TC) from wastewater. The effects of external environmental conditions, such as pH, ionic ...

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