269 research outputs found
An update on Termitomorpha Wasman (Coleoptera: Staphylinidae) including a new species, species redescriptions and geographic extension
No full textSilva, Ruan Felipe Da, Caron, Edilson, Carvalho-Filho, Fernando Da Silva (2022): An update on Termitomorpha Wasman (Coleoptera: Staphylinidae) including a new species, species redescriptions and geographic extension. Zootaxa 5205 (1): 1-25, DOI: https://doi.org/10.11646/zootaxa.5205.1.
Termitomorpha Wasman
No full textKey to the species of Termitomorpha Adapted from Caron et al. (2018) 1 External margin of metafemur with arcuate emargination in proximal 2/3 (Fig. 3F)................ T. fissipennis (Casey) - External margin of metafemur without arcuate emargination (Figs. 9F, G, 16F).................................... 2 2 Mandible with medial teeth (Figs. 2B, 8B, 15B)............................................................ 3 - Mandible without medial teeth (Kistner 2006, fig. 25B–C)...................................... T. huachii Seevers 3 Pronotum with sinuous lateral margin..................................................................... 4 - Pronotum with straight lateral margin (Fig. 15C; Caron et al. (2018), fig. 45)..................................... 7 4 Mentum with distal margin almost straight................................................................. 5 - Mentum with distal margin conspicuously arcuate........................................................... 6 5 Prosternum broadly elevated at middle.................................................... T. meinerti Wasmann - Prosternum not elevated at middle................................................... T. costaricensis (Seevers) 6 Antennal article I with about the length of articles II to V combined (Caron et al. 2018, fig. 7)............................................................................................... T. sinuosa Caron, Bortoluzzi & Rosa. - Antennal article I nearly the length of articles II to IV combined (Fig. 8E)........................ T. goeldiana sp. nov. 7 Pronotum with anterior margin strongly notched medially (Caron et al. (2018), fig. 45)....... T. alata Caron & Bortoluzzi - Pronotum with base slightly notched medially (Fig. 15C)....................................... T. manni (Seevers)Published as part of Silva, Ruan Felipe Da, Caron, Edilson & Carvalho-Filho, Fernando Da Silva, 2022, An update on Termitomorpha Wasman (Coleoptera: Staphylinidae) including a new species, species redescriptions and geographic extension, pp. 1-25 in Zootaxa 5205 (1) on pages 23-24, DOI: 10.11646/zootaxa.5205.1.1, http://zenodo.org/record/728508
Waste Management as a Smart Cognitive System: The Wasman Case
No full textInternational audienceThe Wasman (Waste Management as Policy Tools for Corporate Governance) project is a program comprising six southern European countriesthat share best practices to achieve collective and intelligent decisions regarding waste management. The partnership among the actors is envisioned as a social structure in a socially distributed cognitive system that is the product of action and the conditional element of future action. The authors call this a system of “intelligent cognitive waste management.”
Study of organic semiconductor based photovoltaic devices: light sensors and solar cells / Karwan Wasman Qadir
Full text linkRecently, organic photovoltaic devices (OPVDs) have been extensively studied and demonstrated as promising candidates for light sensing applications. The novel materials are used in optoelectronic applications, utilizing their intrinsic physical, chemical and electrical characteristics. Organic semiconductors offer many physical and chemical properties that can be easily tailored by incorporating functional groups or manipulating physical conditions to meet specific requirements. The best feature of organic semiconductors is their solution processability at room temperature using simple and low cost deposition techniques. Aiming at the interesting properties of organic semiconductors, in this thesis, we have extensively explored organic semiconductors based solar cells and light sensors for optoelectronic applications. Dye sensitized photo sensors using water soluble organic photo sensitizer, Nickel (II) phthalocyanine-tetrasulfonic acid tetrasodium salt (NiTsPc) have been fabricated and investigated. Two different types of TiO2 films (untreated and NaOH-treated) are prepared to serve as anodes for the sensors. Both films are subsequently sensitized by NiTsPc using aqueous solution. Commercially available Iodolyte Z100 and platinum coated indium doped tin oxide (ITO) are used as electrolyte and cathode, respectively. The NaOH-treated sensor demonstrates 2.81 times increase in sensitivity in terms of photo-conductivity as compared to the untreated sensor. The NaOH-treated sensor, however, surpasses the other sensor in terms of response/recovery times and stability in plateau values of the photocurrent. The proposed photosensor is eco-friendly and economical for commercial applications. A binary blend of two polymers, poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta [2,1-b;3,4-b’]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)] (PCPDTBT) and poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) as a sensitizer has been employed for a visible light dye sensitized photo sensor (DSPS). The proposed combination of the polymers covers almost the entire visible light spectrum.
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The dependence of the current generation in the dye sensitized photo sensor is investigated as a function of varied incident light intensities. The output shows a linear relation as a function of incident light in the range of 0-30000 lx. The photo-conductivity sensitivity of the dye sensitized photo sensor is about 2.02×10−5 Sm/W. The average response time of the sensor is found ∼382 ms. In addition to consistency and repeatability, the fabrication of this sensor is economical and environmentally friendly. The effect of thermal annealing on the optical, morphological and photovoltaic properties of bulk heterojunction solar cell based on the poly[2,5-bis(3-dodecylthiophen-2-yl)thieno[3,2-b]thiophene] (PBTTT-C12) and[6,6]-phenyl C71-butyric acid methyl ester (PC71BM) has been investigated. The ITO/PEDOT:PSS/PBTTT-C12:PC71BM/Al devices are fabricated on glass substrates from the PBTTT-C12:PC71BM (1:4) solution in dichlorobenzene. Atomic Force Microscopy (AFM) is used to investigate the surface morphology of the PBTTT-C12:PC71BM thin films. The AFM results show that the surface roughness of the thin film decreases with increasing annealing temperature, making the annealed film smoother as compared to the non-annealed sample. The efficiency of the ITO/PEDOT:PSS/PBTTT-C12:PC71BM/Al photovoltaic devices increases from 1.85 to 2.48% with an increment in the temperature ranging from 0 ℃ to 150 ℃
Effect of metallic nanostructure's shape and size on the performance of organic solar cells: A simulation study / Rupak Wasman Qadir
No full textA systematic study on the absorption enhancement by embedding the periodic metallic nanostructures (NSs) inside the organic Copper Phthalocyanine (CuPc) thin films, is reported. The Surface Plasmon resonance (SPR) can be excited by adding metallic nanostructures and the light can be concentrated and folded into the CuPc layers. By utilizing the Finite Different Time Domain (FDTD), the role of the several different shapes of the metallic nanostructures has been studied. It has been found that the metallic NSs can result in a broadband optical absorption enhancement within the semiconductor thin film in organic solar cells. By increasing the optical path length, the probability of photon being absorbed within the thin film, is increased. The studies on the effects of the position, the dimension and spacing of the metallic particles in the organic thin film on the light absorption have also been performed. A significant enhancement in the absorption in the wavelength range of 350-550 nm has been observed. Furthermore, the investigation has been performed on the effect of the light source incident angle and polarization direction on the absorption in the organic thin films. The best incident angle is found at 75 degree. The role of the nanoparticles light scattering for enhanced light absorption in the organic solar cells, also has been investigated. It is found that the size and shape of nanoparticles give a significant effect on the light scattering and absorption spectra over the visible wavelength
La gestion des déchets comme système cognitif intelligent, le cas Wasman
No full textInternational audienceLe projet WASMAN avait pour objectif de mettre en place une méthodologie pour améliorer la gestion des déchets en Europe du sud à travers plusieurs actions : sensibilisation des acteurs, minimisation des déchets en amont, amélioration des processus de collecte et de traitement des déchets, et amélioration du système de gouvernance territoriale à travers l'implication des acteurs publics et privés. Il a rassemblé des partenaires constitués de collectivités locales, d'agences de développement et d'organismes de recherche en Espagne, Italie, Slovénie, Grèce, Chypre et France. Ce partenariat est ici envisagé comme une structure sociale en tant que système cognitif socialement distribué qui est à la fois, le produit de l'action, mais aussi, l'élément conditionnel de l'action future et que nous appelons « un système de gestion de déchets cognitif intelligent ». Nous proposons dans cet article l'analyse, la méthodologie et les résultats de notre étude sur ce système qui s'insère dans les théories des communautés de pratique
La gestion des déchets comme système cognitif intelligent, le cas Wasman
No full textInternational audienceLe projet WASMAN avait pour objectif de mettre en place une méthodologie pour améliorer la gestion des déchets en Europe du sud à travers plusieurs actions : sensibilisation des acteurs, minimisation des déchets en amont, amélioration des processus de collecte et de traitement des déchets, et amélioration du système de gouvernance territoriale à travers l'implication des acteurs publics et privés. Il a rassemblé des partenaires constitués de collectivités locales, d'agences de développement et d'organismes de recherche en Espagne, Italie, Slovénie, Grèce, Chypre et France. Ce partenariat est ici envisagé comme une structure sociale en tant que système cognitif socialement distribué qui est à la fois, le produit de l'action, mais aussi, l'élément conditionnel de l'action future et que nous appelons « un système de gestion de déchets cognitif intelligent ». Nous proposons dans cet article l'analyse, la méthodologie et les résultats de notre étude sur ce système qui s'insère dans les théories des communautés de pratique
FIGURE 2 in An update on Termitomorpha Wasman (Coleoptera: Staphylinidae) including a new species, species redescriptions and geographic extension
No full textFIGURE 2. Termitomorpha fissipennis (Casey 1890). A) Head, dorsal view. B) Left and right mandibles, dorsal view. C) Pronotum, dorsal view. D) Prosternum, ventral view. E) Antenna. F) Mentum and labium, ventral view. G) Labrum, ventral view. H) Maxilla, dorsal view. Scales bars: A, C, F, H =0,3 mm; B, D, G = 0,15 mm; E = 0,6 mm.Published as part of Silva, Ruan Felipe Da, Caron, Edilson & Carvalho-Filho, Fernando Da Silva, 2022, An update on Termitomorpha Wasman (Coleoptera: Staphylinidae) including a new species, species redescriptions and geographic extension, pp. 1-25 in Zootaxa 5205 (1) on page 4, DOI: 10.11646/zootaxa.5205.1.1, http://zenodo.org/record/728508
FIGURE 18. Termitomorpha manni. A in An update on Termitomorpha Wasman (Coleoptera: Staphylinidae) including a new species, species redescriptions and geographic extension
No full textFIGURE 18. Termitomorpha manni. A) Elytron, ventral view. B) Detail of the anteromesial border of elytron, internal view. C) Maxilla; D) Distal portion of maxillary palpus. E) Mandible. Scales bars: A, D = 200 µm; B = 20 µm; C, E = 50 µm.Published as part of Silva, Ruan Felipe Da, Caron, Edilson & Carvalho-Filho, Fernando Da Silva, 2022, An update on Termitomorpha Wasman (Coleoptera: Staphylinidae) including a new species, species redescriptions and geographic extension, pp. 1-25 in Zootaxa 5205 (1) on page 20, DOI: 10.11646/zootaxa.5205.1.1, http://zenodo.org/record/728508
Laboratory and field evaluation for the resistance of commonly used woods against _Coptotermes heimi_ (Wasmann).
Full text linkThe current study was conducted to evaluate the resistance of four wood species (_Azadirachta indica_, _Pinus roxberghii_, _Dalbergia sissoo_ and _Populus deltoides_) against subterranean termite species _Coptotermes heimi_ by choice and no choice field and laboratory trials. Of these four wood species _P. roxberghii_ and _D. sissoo_ proved to be most resistant to termite attack. Taken together these results we can conclude that _D. sissoo_ is the least preferred and _P. deltoides_ is the most preferred wood by the _C. heimi_. The data obtained from the field choice and no-choice the woods are arranged in order of preference DS>PR>AI>PD whereas in laboratory choice and no-choice trials the order of preference was PD>AI>PR>DS
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