Field traps

We study the dynamics of a double-well BEC system subjected to oscillating dissipation. The macroscopic model is described within the mean-field approximation while the noise effect due to large reservoir fluctuation has been averaged out to zero. We chose a simple dissipative memory kernel to produce a time-dependent oscillating dissipation. Our numerically calculated phase-space portraits and Lyapunov exponents show an enhanced route to chaos as one increases the driving dissipation amplitude.

14p dianmotminh02 03-05-2024 1 1   Download

Ebook "Mosquito ecology: Field sampling methods" is designed to serve as a practical reference for field entomologists and mosquito control specialists and describes the sampling methods and available trapping technologies and tools for the collection of all life-stages of mosquitoes, from egg to adult. It also describes the techniques available for data analysis and discusses ecological principles of relevance to the study of field populations of mosquitoes.

1486p tachieuhoa 28-01-2024 2 2   Download

Bottom gate, top contact Organic Field Effect Transistors (OFETs) were fabricated using copper phthalocyanine (CuPc) as an active layer. The electrical properties of OFETs fabricated with CuPc annealed at different annealing temperatures and different channel length to width (L/W) ratios were studied.

5p viberbers 09-08-2023 3 3   Download

Reliable marking systems are critical to the prospective field release of transgenic insect strains. This is to unambiguously distinguish released insects from wild insects in the field that are collected in field traps, and tissue-specific markers, such as those that are sperm-specific, have particular uses such as identifying wild females that have mated with released males.

7p vinarcissa 21-03-2023 3 1   Download

Gamma-ray spectrometry is a well-established technique which enables to perform qualitative and quantitative analyses of gamma-ray emitting radionuclides. In trapped charge dating, portable spectrometers can be used to acquire spectra in the field, allowing for the assessment of radionuclide concentrations and hence the determination of dose rates at the exact location where samples are collected for dating.

8p vironald 15-12-2022 9 3   Download

During the 2017 season we investigated the occurrence and biology of the brown marmorated stink bug (BMSB), Halyomorpha halys, a new invasive insect pest in two commercial hazelnut orchards located in the Samegrelo Region, Republic of Georgia. The first stink bug adults from the overwintering generation appeared on sticky traps at the end of May, while all instar nymphs and adults were observed at the end of July and through August. The peak occurrence of adults and nymphs in the field was observed at 896– 1061 DD13.9.

8p dolomite36 30-12-2021 5 0   Download

Species of the genus Temelucha Förster, 1869 (Hymenoptera, Ichneumonidae, Cremastinae) in Iran are taxonomically overviewed. Sampling was done using Malaise traps and sweeping nets in natural grasslands, forests, orchards and field crops during 2013–2017. Fifteen species are recorded and reviewed, among them 5 species Temelucha albipennis (Zetterstedt, 1838), T. flavia Vas, 2016, T.ophthalmica (Holmgren, 1860), T. pseudocaudata Kolarov, 1982, and T. variipes (Szépligeti, 1899) are new records for the fauna of Iran. T. convergence Zardouei & Rakhshani sp. nov. is described and illustrated.

20p dolomite36 30-12-2021 5 0   Download

A field investigation was undertaken during Kharif-2013 to estimate the population of soil macro arthropods in cotton intercropped with groundnut under organic, integrated and conventional farming systems. Soil macro arthropod consists of ants, scarabid beetles, centipedes, millipedes and others.

6p trinhthamhodang1215 23-09-2020 7 1   Download

A field investigation was undertaken during Kharif-2013 to estimate the population of soil macro arthropods in agriculture, horticulture and forest ecosystems. Soil macro fauna it includes ants, carabids, centipedes, millipedes and others.

5p trinhthamhodang1215 23-09-2020 11 1   Download

Bottom gate, top contact Organic Field Effect Transistors (OFETs) were fabricated using copper phthalocyanine (CuPc) as an active layer. The electrical properties of OFETs fabricated with CuPc annealed at different annealing temperatures and different channel length to width (L/W) ratios were studied.

5p tamynhan4 06-09-2020 13 1   Download

Field experiments were conducted during Kharif 2016 and 2017 to manage yellow vein mosaic virus in Okra with seven modules along with one control. The module consists of use of either seed treatment or yellow sticky trap singly or in combination with neem oil (bio-pesticide), one insect growth regulator and two new generation insecticides to manage the vector population of whitefly which transmit the disease.

6p kethamoi7 26-08-2020 10 2   Download

This study was carried out at three different sites, all situated at Agricultural College, Karekere, Hassan, Karnataka such as agroforest, ragi field and grassland. Each habitat was measured to be 10,000 sq.m., andthe selected habitat areas were represented their own characteristic features being surrounded by areas of their own habitat nature.

4p nguaconbaynhay7 15-08-2020 3 1   Download

In this study, we reported the results of the design and the fabrication a planar coil in copper (square, a = 10 mm, 15µm high, 45 turns), these planar coils were integrated in a microfluidic chip for trapping magnetic nanoparticles and local heating applications.

12p nguyenxuankha_bevandan 14-08-2020 14 1   Download

Finite element method (FEM) is the most widely used approach in the simulation of micro-nano devices before actual fabrication. Using simulation software, 2D and 3D structures of the device are designed, meshed, and then simulated to optimize their parameters. In this work, we modeled and simulated the hydrodynamic trapping of micro-particle (μP) representing for single-cell in the microfluidic system. Besides, the interaction between μP and fluid, the effect of flow velocity, and the pressure field variation for increasing the trapping efficiency were investigated.

7p kethamoi6 01-07-2020 16 3   Download

Evaluation of Sex Ph A field experiment was conducted in farmer’s field during the kharif season of 2014-15 under irrigated condition at Hittinahalli and Jumanal villages of Vijayapur district of Karnataka to evaluate the efficacy of different pheromone trap models as monitoring devices for brinjal shoot and fruit borer Leucinodes orbonalis. The water trap (WOTA) model had significantly highest number of moths catches (seasonal mean of 3.08 moths/trap/five days ) with lowest mean shoot damage (5.48 %) and lowest mean fruit damage (15.03 %) resulting into highest yield (489 q ha-1 ).

11p nguaconbaynhay6 24-06-2020 24 1   Download

Pyrethroids are the only group of insecticides currently recommended for net treatment. Resistance monitoring is essential to investigate the susceptibility of wild populations of An. gambiae s.l. to pyrethroids. We investigated the kind of mosquito sample useful in the assessment of insecticide susceptibility tests in malaria vectors in the field conditions. Two mosquito samples were used.

8p angicungduoc5 14-06-2020 10 0   Download

Squeezing properties of the Hillery-type N-powered amplitude are investigated in the linear and nonlinear fan-state. For a given k, squeezing may appear to the even power N = 2k and the number of directions along which the Nth-powered amplitude is squeezed is exactly equal to N, in both linear (the light field) and nonlinear (the vibrational motion of the trapped ion) fan-states.

7p 12120609 01-06-2020 11 0   Download

Rice is the world’s most important food crop and a primary source of food for more than half of the world’s population. More than 70% of the people of the Arunachal Pradesh are engaged in agriculture. Some traditional lures used in north east region of India like fermented fish, Puntius spp., fermented paste made up of the same, rotten pineapple, rotten crab, rotten frog and a dry fish, Harpadon nehereus were evaluated for the trapping potential against gundhi bug. Maximum numbers of bugs were trapped with rotten frog (11.7) followed by the fermented paste prepared from Puntius spp.

9p trinhthamhodang1213 29-05-2020 4 0   Download

The present research was studied on seasonal incidence and population dynamics of major insect pest species of paddy collected in light trap by operating, Jawahar light trap (with 80 Watt mercury vapour lamp) in paddy field at Krishi Nagar experimental farm, Adhartal during kharif 2014.

11p cothumenhmong5 17-05-2020 5 0   Download

The peak population of mustard aphid on yellow sticky traps was recorded with 35.4±2.9 aphids/trap from 7th SW and it was active from 45th SW to 14th SW, where it was on peak with 712.4±16.4 aphids/plant under the field condition from untreated plots at 3rd SW. Coccinella septempunctatas active from 50th SW to 13th SW of the season and peak population noticed from 5th SW with 14±0.4 grubs and adults/plant.

8p nguaconbaynhay5 16-05-2020 16 0   Download