Relevant bibliographies by topics / Horizontal field

Academic literature on the topic 'Horizontal field'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Horizontal field.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Horizontal field"

1

Zhang, Yunfeng, Erchun Zhang, and Jialiang Gu. "Evaluation of Horizontal Electric Field from the Lightning Channel by Electromagnetic Field Equations of Moving Charges." International Journal of Antennas and Propagation 2019 (December 14, 2019): 1–8. http://dx.doi.org/10.1155/2019/4091586.

Full text
Abstract:
The horizontal electric field from the lightning return-stroke channel is evaluated by the electromagnetic field equations of moving charges in this paper. When a lightning flash strikes the ground, the charges move upward the lightning channel at the return-stroke speed, thereby producing the electromagnetic fields. According to the electromagnetic field equations of moving charges, the detained charges, uniformly moving charges, and decelerating (or accelerating) charges in each segment of the channel generate electrostatic fields, velocity fields, and radiation fields, respectively. The horizontal component of the sum is the horizontal electric field over the perfectly conducting ground. For the real soil with finite conductivity, the Wait formula is used here for the evaluation of the horizontal electric field over the realistic soil. The proposed method can avoid the oscillation of the fields in the long distance by the FDTD method and the singularity problem of the integral equation by the Sommerfeld integral method. The influences of the return-stroke speed, distance, and soil conductivity on the horizontal electric field are also analyzed by the proposed method. The conclusions can be drawn that the horizontal electric field decreases with the increasing of the return-stroke speed; the negative offset increases with the increasing of horizontal distance and with the decreasing of the soil conductivity, thereby forming the bipolar waveform. These conclusions will be practically valuable for the protection of lightning-induced overvoltage on the transmission lines.
APA, Harvard, Vancouver, ISO, and other styles
2

BEJANCU, AUREL. "FIELD EQUATIONS FOR SPACE–TIME–MATTER THEORY." International Journal of Geometric Methods in Modern Physics 10, no. 09 (August 30, 2013): 1350038. http://dx.doi.org/10.1142/s0219887813500382.

Full text
Abstract:
In the present paper we obtain, in a covariant form, and in their full generality, the field equations in a relativistic general Kaluza–Klein space. This is done by using the Riemannian horizontal connection defined in [3], and some 4D horizontal tensor fields, as for instance: horizontal Ricci tensor, horizontal Einstein gravitational tensor field, horizontal electromagnetic energy–momentum tensor field, etc. Also, we present some inter-relations between STM theory and brane-world theory. This enables us to introduce in brane theory some electromagnetic potentials constructed by means of the warp function.
APA, Harvard, Vancouver, ISO, and other styles
3

Yoshida, Takao. "Horizontal well in Kubiki Oil Field." Journal of the Japanese Association for Petroleum Technology 59, no. 5 (1994): 415–20. http://dx.doi.org/10.3720/japt.59.415.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

SOGAMI, IKUO S. "GAUGE FIELD THEORY OF HORIZONTAL SYMMETRY." International Journal of Modern Physics A 24, no. 18n19 (July 30, 2009): 3523–30. http://dx.doi.org/10.1142/s0217751x09047144.

Full text
Abstract:
The standard model of particle physics is generalized with a horizontal symmetry so that all its results are successfully reproduced without inducing any unphysical modes of existence. Two stage breakdowns of symmetries result in mass matrices of Majorana and Dirac types for fundamental fermions and predict rich physical modes of boson fields, some of which might be observed by the LHC experiment.
APA, Harvard, Vancouver, ISO, and other styles
5

Ambrož, P., and W. Pötzi. "Horizontal flow below solar filaments." Astronomy & Astrophysics 613 (May 2018): A39. http://dx.doi.org/10.1051/0004-6361/201731162.

Full text
Abstract:
Context. Observations of the internal fine structures of solar filaments indicate that the threads of filaments follow magnetic field lines. The magnetic field inside the filament has a strong axial component. Some models of magnetic fields suggest that the field structure in filaments could be caused by the horizontal plasma velocity field near both sides below the filament, where observable shearing effects from the axial component are expected. Aims. The horizontal velocity field in the vicinity of polarity inversion lines is measured in order to determine, if it exhibits a systematic movement that induces shear along the filament axis and convergence perpendicular to the axis. Methods. The horizontal velocity was obtained from the displacement of supergranules, which were derived from Doppler measurements in the solar photosphere. Dopplergrams corrected for rigid rotation and p-mode oscillations were further analyzed by local correlation tracking. Results. Vector fields of the horizontal velocities were measured in 16 areas during 8 time intervals in the years 2000–2002 on both solar hemispheres, each for a few consecutive days. For 64 selected filaments the nearby horizontal velocity vectors were split up into a component along the filament axis and a perpendicular component. Conclusions. Differences between the axial velocities on both sides of the filaments were calculated. In almost all cases the velocity gradient corresponds to the inclination of the threads observed in Hα images. The average transverse velocity does not show any preferred tendency towards a divergence or convergence to the filament axis. Testing the horizontal velocity for the creation of the differential rotation profile in the photosphere reveals a strong dependence of the averaging process on the scale of our velocities.
APA, Harvard, Vancouver, ISO, and other styles
6

Zalzala, Adnan. "Horizontal Wells: Applications, Considerations, and Case Histories." Journal of Petroleum Research and Studies 2, no. 3 (May 5, 2021): 72–131. http://dx.doi.org/10.52716/jprs.v2i3.50.

Full text
Abstract:
This paper discusses many aspects of the application of horizontal wells for field development, starting with the basic question of why to opt to this technology. The different considerations to be taken into account when dealing with the technology are reviewed, including some inherent downsides like higher cost and operational complications. The main emphasis, however, is placed on practical reservoir engineering aspects, including well planning and performance, and the handling of horizontal wells in specific technical applications like well test analysis and numerical modeling. The theoretical basis and pertinent differences in physics and flow regimes around vertical and horizontal wells are discussed in the context, together with the inherent practical implications. Case histories and examples are presented for several successful applications worldwide that the author was involved in. In one case, a medium size field offshore Canada was developed with waterflood utilizing very few horizontal producers, with a set of horizontal and vertical water injectors. Detailed planning and intensive modeling, carried out by a team of engineers and geoscientists, led to a remarkably successful field development. In another case, few horizontals were used among many directional wells to develop a Mediterranean oil reservoir under aquifer and gas cap drives in an attempt to reduce coning problems, raising an opportunity to compare the long term performance of different geometry wells. A brief description is also presented to some advanced techniques and special cases of implementing horizontal wells such as thermal recovery (Steam-Assisted-Gravity-Drainage, or SAGD Process), multi-lateral wells, and multi-fractured wells, with discussion on these applications. Under favorable conditions, horizontal wells can also be used as an Improved Oil Recovery (IOR) tool in mature fields, an application that became very common in many super giant fields in the Arabian Gulf Area.
APA, Harvard, Vancouver, ISO, and other styles
7

A.Alrazzaq, Ayad A. Alhaleem. "Development of East Baghdad Oil Field By Clusters of Horizontal Wells." Iraqi Journal of Chemical and Petroleum Engineering 20, no. 3 (September 30, 2019): 75–79. http://dx.doi.org/10.31699/ijcpe.2019.3.10.

Full text
Abstract:
There are varieties of reasons lead for drilling horizontal wells rather than verticals. Increasing the recovery of oil, especially from thin or tight reservoir permeability is the most important parameter. East Baghdad oil field considered as a giant field with approximately more than 1billion barrel of a proved reserves accompanying recently to low production rate problems in many of the existing wells. It is important to say that presence of of horizontal wells in East Baghdad field especially by converting some of already drilled wells by re-entry drilling horizontal sections may provide one of best solutions for the primary development stage in East Baghdad field which may be followed by drilling new horizontal wells or using multilateral wells. Advance software (Well Test/FAST) has been used to convert the production data for the already drilled vertical wells to horizontals to simulate the productivity. It can be concluded that no measurements available for the ratio of anisotropy (Kv/Kh); in East Baghdad Oil Field therefore, the wells productivity has been estimated using wide range of anisotropy ratios that will help the field operator to determine exactly wells productivity. Moreover, it helps to recommend the effectiveness of applying hydraulic fracturing in improving horizontal well productivity. The results show that it could be used well EB-32 as a re-entry horizontal well with an optimum section length of 1500-2000ft wich give the best production rate. The same result could be stated for EB-10 with somewhat higher productivity than EB-32.
APA, Harvard, Vancouver, ISO, and other styles
8

Xu, Xin, Zhipeng Chen, Chu Han, Lizhi Zhu, Wei Zheng, Jiayu Xu, Cheng Yang, et al. "Effect of equilibrium radial position on horizontal instability of middle single null divertor configuration in the iron core tokamak." Physics of Plasmas 29, no. 3 (March 2022): 032510. http://dx.doi.org/10.1063/5.0073020.

Full text
Abstract:
The unique high-field side middle single null divertor configuration in the Joint-Texas Experimental Tokamak is attractive in studying detachment, impurity control, L-H transition, and negative triangularity. Its equilibrium configuration with a horizontally elongated (or flattened) poloidal cross section causes position instability and difficulty in equilibrium control. This work disassembles the vertical magnetic field of each group of poloidal field windings and calculates the field decay index ( n-index) at different radial positions. It is found that the instability growth time τg of horizontal displacement increases as the equilibrium radial position of plasma moves outward, which is beneficial to the position control. The simulation and experiments verified the effect of equilibrium position on horizontal instability. The equilibrium position slightly outward from the geometric center of the vacuum chamber effectively decreases the horizontal displacement oscillation amplitude and guarantees the controllable horizontal displacement.
APA, Harvard, Vancouver, ISO, and other styles
9

Hess, G., C. D. Aizenman, and J. P. Donoghue. "Conditions for the induction of long-term potentiation in layer II/III horizontal connections of the rat motor cortex." Journal of Neurophysiology 75, no. 5 (May 1, 1996): 1765–78. http://dx.doi.org/10.1152/jn.1996.75.5.1765.

Full text
Abstract:
1. The present studies investigated conditions for the induction of long-term potentiation (LTP) in the local horizontal pathways of layers II/III in the primary motor cortex (MI) of the adult rat. Field potential and intracellular recordings demonstrated synaptic interactions across the superficial layers within MI that could be enhanced transiently by focal application of the gamma-aminobuturic acid-A receptor antagonist bicuculline methiodide (Bic) at the recording site. 2. Field potentials evoked in the superficial MI horizontal pathways increased in amplitude after tetanizing, theta burst stimulation (TBS), but only when Bic was applied transiently at the recording site immediately before TBS. In the absence of Bic, TBS failed to produce long-lasting increases in horizontally evoked field responses. By contrast, TBS delivery during focal Bic application increased field potential amplitudes by 25-35% when measured 25-30 min after stimulation. The amount of potentiation was greater when two converging horizontal inputs were stimulated together but was not increased with higher intensity stimulation. Persistent effects of Bic application alone were evident. However, these effects were small unless Bic application continued until evoked field potential amplitude increase exceeded 200% of baseline. 3. The synaptic nature of field potential increases were confirmed using intracellular recordings of layer II/III neurons located near field potential electrodes. 4. LTP also could be induced without Bic application by cotetanization of vertical pathways simultaneously with horizontal activation. Vertical conditioning alone at 2 Hz, which affects inhibitory efficacy, was shown to transiently relieve depression of successive responses that ordinarily occurs during a burst of three horizontal stimuli. These results suggest that LTP of horizontal pathways may be regulated by spatiotemporal interactions between horizontal and vertical pathways. 5. Horizontal LTP was blocked reversibly by bath application of the N-methyl-D-aspartate (NMDA) antagonist 2-amino-5-phosphonovaleric acid, thereby implicating NMDA-receptor activation in LTP induction for these pathways. 6. The results confirm and extend our previous finding that the potential for activity-dependent modification of synaptic connections exists within the intrinsic horizontal connections of the superficial cortical layers. Synaptic modification across horizontally connected neurons appears to be regulated both by the arrangement of intrinsic circuitry and by the availability of mechanisms for modification at individual synapses. The properties of horizontal connections indicate that they form a spatial substrate and provide an activity-dependent mechanism for plasticity of adult cortical representations.
APA, Harvard, Vancouver, ISO, and other styles
10

Turkyilmazoglu, Mustafa. "Flow and heat over a rotating disk subject to a uniform horizontal magnetic field." Zeitschrift für Naturforschung A 77, no. 4 (January 17, 2022): 329–37. http://dx.doi.org/10.1515/zna-2021-0350.

Full text
Abstract:
Abstract Magnetic field is often applied to stabilize the flow field in real life applications of fluid mechanics problems. In the present work, it is employed a horizontal uniform magnetic field to regularize the flow field triggered due to a rotating disk. The energy equation is also studied subjected to such a horizontal magnetic field. The applied horizontal magnetic field is different from the well-known applied external vertical magnetic field. It is shown that the horizontal magnetic field leads to a similarity system of equations with the help of the traditional von Kármán similarity transformations. The effects of such a magnetic field on the development of velocity and temperature fields are then numerically investigated. The existence of exact series solutions in terms of decaying exponential functions is further discussed. The critical roles of horizontal magnetic field on the physical quantities involving the local wall shears, torque and the heat transfer rate are finally highlighted.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Horizontal field"

1

Leighton, Feifei Zhang. "Numerical modelling of shallow flows with horizontal density variation." Thesis, University of Oxford, 2005. http://ora.ox.ac.uk/objects/uuid:2ea7400f-9b2c-4052-961e-84446f501822.

Full text
Abstract:
A numerical model is presented of vertically homogeneous shallow flows with variable horizontal density. The governing equations represent mass and momentum conservation of a liquid-species mixture, and mass conservation of the species within a control volume. Here, the term species refers to material transported with the liquid flow. For example, when the species is taken to be suspended sediment, the model provides an idealised simulation of hyper-concentrated sediment-laden flows. The volumetric species concentration acts as an active scalar, allowing the species dynamics to influence the flow structure. The model can simulate flows driven by depth and density differences in the horizontal. The governing equations are written in a deviatoric, hyperbolic form to facilitate their solution by means of a Godunov-type finite volume scheme appropriate for flows containing sharp fronts. The deviatoric governing equations ensure that flux gradient and source terms are balanced (and there is no need for further numerical balancing). The numerical model is first verified for constant density cases, for which the governing equations reduce to the conventional coupled shallow water and species transport equations. Close agreement between numerical predictions and benchmark test solutions illustrate the model's ability to capture rapidly-varying flow features over uniform and non-uniform bathymetries. For variable-density cases, analytical steady-state solutions are derived for two simple cases, one with uniform bathymetry and the other with sinusoidal bathymetry. Detailed parameter studies are then undertaken to examine the effects of varying the initial density and depth in different regions. The shock-capturing scheme resolves all sharp features in the flow such as bore, shear waves, shock diamond like features, contact discontinuities and locally intense vortices. These interesting and novel nonlinear features are unique to variable density flows. The validated numerical model is applied to an idealised case of a hyperconcentrated sediment-laden debris-type flow along a tributary entering a river. The predicted evolution of the free surface flow field is qualitatively similar to observations of an actual debris flows into a river connected to the Upper Yangtze.
APA, Harvard, Vancouver, ISO, and other styles
2

Veenhuis, Robert S. "Matched field processing in shallow water using a small aperture horizontal line array." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA293673.

Full text
Abstract:
Thesis (M.S. in Meteorology and Physical Oceanography) Naval Postgraduate School, December 1994.
"December 1994." Thesis advisor(s): James H. Wilson. Includes bibliographical references. Also available on microform AND online.
APA, Harvard, Vancouver, ISO, and other styles
3

Budihardjo, Arifin 1968. "Near-zone electric field computation of a horizontal semi-infinite wire above earth." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/278358.

Full text
Abstract:
Asymptotic expressions are obtained for the electric field due to a current propagating on a horizontal semi-infinite wire above the earth. First, exact integral representations are derived for the electric field due to a current on a semi-infinite wire in a general multi-layered medium. The resulting integral expressions are then specialized for the problem of a semi-infinite wire above the earth. The resulting expressions involve a semi-infinite integration over an integrand containing the incomplete Lipschitz-Hankel integrals. The steepest descent technique is applied to the direct and reflected terms separately, thereby providing a far-zone approximation for the field (E α r⁻¹). A recurrence relationship is then developed which allows the r⁻² term in the asymptotic expansion to be computed from the previously computed r⁻¹ term. A numerical comparison between the following three methods is carried out: numerical integration, one-term (1/r) approximation, and two-term (1/r²) approximation. It is shown that two-term solution yields more accurate results than that of the one-term solution, especially when the problem of a finite length wire above the earth is considered. The two-term expansion provides accurate results for the fields when 0.1 λ < r < ∞ and it consumes much less computation time than the numerical integration solution.
APA, Harvard, Vancouver, ISO, and other styles
4

JUNIOR, ROBERTO DA FONSECA. "INSTANTANEOUS LIQUID VELOCITY FIELD MEASUREMENTS IN TWO-PHASE INTERMITTENT FLOW THROUGH HORIZONTAL AND INCLINED PIPES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2009. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=15406@1.

Full text
Abstract:
No presente trabalho foi realizado um estudo experimental sobre escoamento bifásico em regime intermitente através de tubos horizontais e de pequena inclinação, com o objetivo de determinação dos campos de velocidade instantâneos nas regiões a montante do nariz, a jusante da cauda das bolhas de gás, assim como na região do filme de líquido sob as bolhas. Foi implementada uma combinação de três técnicas ópticas não invasivas. Velocimetria por Imagem de Partículas bi-dimensional (Particle Image Velocimetry – PIV) foi utilizada para determinar os campos de velocidade instantâneos nas regiões de interesse, enquanto luz de fundo pulsada e sincronizada proveniente de uma matriz de LED’s vermelhos iluminava os contornos das bolhas aumentando o contraste das interfaces líquido-gás (Pulsed Shadow Technique – PST). Uma técnica baseada na fluorescência induzida por laser foi utilizada (Laser Induced Fluorescence - LIF) para separar a luz verde intensa proveniente do laser associado à técnica PIV. Os testes foram conduzidos em seção transparente tendo água e ar como fluidos de trabalho. Os resultados obtidos revelaram informações detalhadas sobre o escoamento de líquido no escoamento intermitente. Foram produzidos também resultados estatísticos de algumas variáveis globais do escoamento como, a velocidade e os comprimentos das bolhas e pistões de líquido, além da frequência de passagem desta estruturas do escoamento.
instantaneous liquid velocity fields at the film, nose and tail regions of slugs in horizontal and inclined two phase flow. To this end, a combination of three nonintrusive optical techniques was employed. Two-dimensional particle image velocimetry (PIV) was used to measure the instantaneous liquid velocity field at a meridional plane of the horizontal pipe test section, while a synchronized pulsed back lighting, provided by a matrix of red LED s, illuminated the bubble contours thereby enhancing contrast of the interfaces (Pulsed Shadow Technique - PST). A laser-induced fluorescence technique (LIF) was employed to separate the strong reflections coming from the gas-liquid interfaces produced by the green PIV laser, The tests were conducted on a specially built transparent pipe test section, using air and water as the working fluids. The velocity fields were obtained for flow regimes where the slugs were lightly aerated. The velocity field results in the nose, tail and film regions revealed valuable detailed information that helped to better understand the physics of the flow, besides contributing to the formation of a data bank for supporting the development of two-phase, horizontal slug flow simulations. The work conducted also provided statistical information on the main global variables that characterize the flow, such as, speed and length of gas bubbles and liquid slugs, and the frequency of passage of these structures.
APA, Harvard, Vancouver, ISO, and other styles
5

Rodrigues, Lázaro Luiz Fratoni. "Transmissão vertical e horizontal de parasitas usando autômatos celulares probabilísticos." Universidade Federal da Paraí­ba, 2011. http://tede.biblioteca.ufpb.br:8080/handle/tede/5782.

Full text
Abstract:
Made available in DSpace on 2015-05-14T12:14:21Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2227394 bytes, checksum: 05a68822cdf04f42c1f50d5c368cac63 (MD5) Previous issue date: 2011-02-28
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
wide range of pathogens are transmitted by a combination of horizontal and vertical transmission; among these are microsporodians, helminths, bacteria and viruses of plants and animals, including important human pathogens such as HIV, HTLV-1, cytomegalovirus, several hepatitis viruses and herpes simplex [Proc. R. Soc. Lond. B 260: 321-327]. In this work, the vertical parasite spreading from parent to offspring and horizontal transmission through infection in a population of moving individuals are discussed using a probabilistic cellular automata implemented on a square lattice. In our model, we generalize the automata proposed in [J. Phys. A : Math. Gen. 27: 1585-1597] to include the vertical transmission. The local rule consists of two subrules: the first one, applied synchronously, models infection, birth and death processes; the second, applied sequentially, describes the motion of individuals. In this model, endemic states may occur (susceptible and infected individuals coexisting) or a disease-free state (without infected). It is worth mentionins that a state in which the entire population becomes infective is possible in the case of perfect vertical transmission, i.e. infected parents give birth only to infected offspring. Moreover, the stability of these states may be analised using a mean-field approximation or grafically verified from the numerical simulations.
Uma ampla faixa de patógenos são propagados por uma combinação de transmissão horizontal e vertical, dentre os quais podemos destacar: microesporídeos, helmintos, bactérias, fungos e vírus de plantas e animais, incluindo importantes microorganismos parasitas de humanos como o HIV, HTLV-1, cytomegalovírus, vários tipos de hepatite e herpes simples [Proc. R. Soc. Lond. B 260: 321-327 (1995)]. Neste trabalho, a transmissão vertical (infecção do genitor para os filhos) e a transmissão horizontal (infecção por contágio) numa população de indivíduos em movimento são discutidos usando um autômato celular probabilístico implementado numa rede quadrada. Em tal modelo, generalizamos o autômato proposto em [J. Phys. A : Math. Gen. 27: 1585-1597 (1994)] para incluir a transmissão vertical. A regra local consiste de duas subregras: a primeira modela de maneira sincronizada os nascimentos, as mortes e as infecções; já a segunda, aplicada sequencialmente, descreve o movimento dos indivíduos. Neste modelo é possível um estado endêmico (suscetíveis coexistindo com infectados) ou um estado livre de doenças (sem infectados). Salienta-se que um estado em que toda a população torna-se infectada é possível no caso de transmissão vertical perfeita, i.e. pais infectados possuem apenas descendentes infectados. Inclusive, a estabilidade destes estados pode ser analizada na aproximação de campo médio para este modelo, ou verificada através dos gráficos dos resultados das simulações numéricas.
APA, Harvard, Vancouver, ISO, and other styles
6

Dong, Danan. "The horizontal velocity field in southern California from a combination of terrestrial and space-geodetic data." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/52979.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Achinivu, Ochi I. "Field application of an interpretation method of downhole temperature and pressure data for detecting water entry in horizontal/highly inclined gas wells." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2355.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Carrera, Sandra Garcés. "Virulence of Mayetiola destructor (Say) field populations in the Great Plains and levanase/inulase-like genes in the Hessian fly genome." Diss., Kansas State University, 2013. http://hdl.handle.net/2097/16873.

Full text
Abstract:
Doctor of Philosophy
Department of Entomology
Ming-Shun Chen
C. Michael Smith
The Hessian fly, Mayetiola destructor (Say), is a major pest of wheat, and is controlled mainly through deploying fly-resistant wheat cultivars. This study investigated five M. destructor populations collected from Texas, Louisiana, and Oklahoma, where infestation by Hessian fly has been high in recent years. Eight resistance genes including H12, H13, H17, H18, H22, H25, H26, and Hdic, were found to be highly effective against all tested M. destructor populations in this region, conferring resistance to 80% or more of plants containing one of these resistant genes. The frequency of biotypes virulent to resistant genes ranged from 0 to 45%. A logistic regression model was established to predict biotype frequencies based on the correlation between the percentages of susceptible plants obtained in a virulence test. In addition to the virulence test, the log-odds of virulent biotype frequencies were determined by a traditional approach to predict the logistic regression model. Characterization of a bacterial artificial chromosome (BAC) clone identified a gene encoding a protein with sequence similarity to bacterial levanases. Blast searching with the levanase-like protein identified 14 levanase/inulase-like genes or gene fragments. In this study, we determined the expression levels of these genes in different developmental stages and different tissues of 3-d old larvae of M. destructor. Sequence analysis revealed that six genes encode full length proteins, three were truncated at the 5’ end, and five truncated at the 3’ end. Sequences of putative proteins showed approximately 42% similarities to bacterial levanases or inulases, and 36% similarity to fungal levanases or inulases. No sequence similarities were found with any known animal or plant proteins. Comparative analysis of sequences among 14 levanase/inulase-like genes revealed that positions for intron/exon boundaries are conserved among different genes even though the length of each intron and exon varied among different genes. The expression patterns of the levanase/inulase-like genes were different among developmental stages and larval tissues of M. destructor. Interestingly, three genes presented alternative splicing bands in different developmental stages, and two genes exhibited splicing bands in different tissues of 3 d old M. destructor. This study would be useful for future studies of the characterization and function of levanase/inulase-like genes of these enzymes in plant-insect interactions.
APA, Harvard, Vancouver, ISO, and other styles
9

Rivero, Diaz Jose Antonio. "Experimental studies of steam and steam-propane injection using a novel smart horizontal producer to enhance oil production in the San Ardo field." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5753.

Full text
Abstract:
A 16×16×5.6 in. scaled, three-dimensional, physical model of a quarter of a 9-spot pattern was constructed to study the application of two processes designed to improve the efficiency of steam injection. The first process to be tested is the use of propane as a steam additive with the purpose of increasing recovery and accelerating oil production. The second process involves the use of a novel production configuration that makes use of a vertical injector and a smart horizontal producer in an attempt to mitigate the effects of steam override. The experimental model was scaled using the conditions in the San Ardo field in California and crude oil from the same field was used for the tests. Superheated steam at 190 – 200ºC was injected at 48 cm3/min (cold water equivalent) while maintaining the flowing pressures in the production wells at 50 psig. Liquid samples from each producer in the model were collected and treated to break emulsion and analyzed to determine water and oil volumes. Two different production configurations were tested: (1) a vertical well system with a vertical injector and three vertical producers and (2) a vertical injector-smart horizontal well system that consisted of a vertical injector and a smart horizontal producer divided into three sections. Runs were conducted using pure steam injection and steam-propane injection in the two well configurations. Experimental results indicated the following. First, for the vertical configuration, the addition of propane accelerated oil production by 53% and increased ultimate recovery by an additional 7% of the original oil in place when compared to pure steam injection. Second, the implementation of the smart horizontal system increased ultimate oil recovery when compared to the recovery obtained by employing the conventional vertical well system (49% versus 42% of the OOIP).
APA, Harvard, Vancouver, ISO, and other styles
10

McPhillips, Kenneth J. "Far field shallow water horizontal wave number estimation given a linear towed array using fast maximum likelihood, matrix pencil, and subspace fitting techniques /." View online ; access limited to URI, 2007. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3276997.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Horizontal field"

1

Hiking the horizontal: Field notes from a choreographer. Middletown, Conn: Wesleyan Press, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Ingram, David K. Geologic discontinuities and their influence on the regional horizontal stress field in southern Illinois. S.l: s.n, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Serebryakov, Andrey, and Gennadiy Zhuravlev. Exploitation of oil and gas fields by horizontal wells. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/971768.

Full text
Abstract:
The textbook describes the design features of offshore horizontal multi-hole production wells, as well as the bottom-hole components of horizontal multi-hole wells. The classification of complications of multi-hole horizontal wells, methods of their prevention and elimination are given. Methods of underground geonavigation of the development of offshore horizontal production wells are proposed. The geological and field bases of operation of horizontal offshore multi-hole oil and gas wells, modes and dynamics of oil, gas and associated water production, methods for calculating dynamic bottom-hole and reservoir pressures are specified. The technologies of operation of offshore horizontal multi-hole wells are presented. The composition and scope of environmental, field and research marine monitoring of the operation of offshore horizontal multi-hole wells and the protection of the marine environment in the production of oil and gas are justified. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for undergraduates of the enlarged group of "Earth Sciences" training areas, as well as for teachers, employees of the fuel and energy complex, industrial geological exploration and oil and gas production enterprises, scientific and design organizations.
APA, Harvard, Vancouver, ISO, and other styles
4

Hardy, E. R. The secular variation of the magnetic field horizontal force, vertical force, and total force in Ireland (1985). Dublin, Ireland: Meteorological Service, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bakken Formation Short Course (1990 Billings, Mont.). Bakken Formation Short Course--study notes no. 1: Bakken Formation, March 28-29, 1990 : Rodeway Inn, Billings, Montana. Edited by Hansen William B and Montana Geological Society. [Billings, MT]: Montana Geological Society, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Beilin, Igor'. Modeling of economic processes in the oil and gas region. ru: INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1842518.

Full text
Abstract:
The textbook is aimed at developing knowledge about methods and approaches to modeling the economic processes of the region on the basis of horizontal interregional and intersectoral integration of petrochemical complexes, as well as as a result of improving the innovative infrastructure of the territories of oil production and processing, oil condensate, natural and associated gas. Meets the requirements of the federal state educational standards of higher education of the latest generation. For students of higher educational institutions studying in the fields of "Economics", "Management", "Public Administration" (Master's degree). It can also be useful in the research work of postgraduate and doctoral studies in the scientific specialties "Economic theory", "Economics and management of the national economy", "Mathematical and instrumental methods of economics", etc.
APA, Harvard, Vancouver, ISO, and other styles
7

IGCP, 450 Field Workshop (1st 2001 Belo Horizonte and Paracatu Minas Gerais Brazil). Proterozoic base metal deposits of Africa and South America: Contributions presented at the 1st IGCP 450 Field Workshop, Belo Horizonte and Paracatu, Minas Gerais, September 27 to October 2, 2001. Belo Horizonte and Paracatu, Brazil: Conselho Nacional de Desenvolvimento Científico e Tecnológico, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

IGCP, 450 Field Workshop (1st 2001 Belo Horizonte and Paracatu Minas Gerais Brazil). Proterozoic base metal deposits of Africa and South America: Contributions presented at the 1st IGCP 450 Field Workshop, Belo Horizonte and Paracatu, Minas Gerais, September 27 to October 2, 2001. Belo Horizonte and Paracatu, Brazil: Conselho Nacional de Desenvolvimento Científico e Tecnológico, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Lerman, Liz. Hiking the Horizontal: Field Notes from a Choreographer. Wesleyan University Press, 2014.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lerman, Liz. Hiking the Horizontal: Field Notes from a Choreographer. Wesleyan University Press, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Horizontal field"

1

Lahusen, Christian, and Marius Wacker. "A European field of public administration?" In Horizontal Europeanisation, 153–74. Abingdon, Oxon ; New York, NY : Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.4324/9781351189996-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kitai, R., Y. Funakoshi, S. Ueno, S. Sano, and K. Ichimoto. "Horizontal Flow Field in the Solar Photosphere." In Astrophysics and Space Science Library, 319–20. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5220-4_51.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sansò, Fernando, and Daniele Sampietro. "The Vertical Gravitational Signal of Homogeneous Bodies, Bounded in the Horizontal Plane." In Analysis of the Gravity Field, 39–83. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74353-6_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Philatov, V., L. Bolotnova, and K. Vandysheva. "Horizontal Shear Zones and Their Reflection in Gravitational Field." In Springer Proceedings in Earth and Environmental Sciences, 339–47. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-97670-9_39.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Han, Yu, Shao-gong Zhu, Feng-shan Wang, Fu-min Liang, Hai-cheng Li, Qing-zhong Li, Kan Wu, and Ling Wang. "Deep Penetrating Horizontal Drilling Techniques Status Quo Analysis." In Proceedings of the International Field Exploration and Development Conference 2018, 1499–507. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7127-1_143.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Rojas Bernal, Claudia Lucia. "Section Across the Horizontal Field: A Case Study of the Asymmetrical Condition of Bogotá’s Periphery." In The Horizontal Metropolis Between Urbanism and Urbanization, 215–22. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75975-3_22.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Doutt, J. A., R. J. Cederberg, R. B. Evans, S. D. Rajan, W. M. Carey, and W. L. Siegmann. "Experimental Horizontal Wavenumber Spectra and Implications for Full Field Processing." In Full Field Inversion Methods in Ocean and Seismo-Acoustics, 341–46. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_55.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Quan, Wei, Gui Cai Song, Fu Yun Liu, and Zhao Qi Wang. "Aberrations of the Human Eye across the Horizontal Visual Field." In Optics Design and Precision Manufacturing Technologies, 1207–10. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-458-8.1207.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Li-jun, Long Peng, Guo-qing Han, Xian-hong Tan, and Jin Shu. "Research on the Applicability Analysis of Double Step Horizontal Wells." In Proceedings of the International Field Exploration and Development Conference 2021, 2013–20. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2149-0_187.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Liu, Chong-jiang, Xing-liang Song, Xiao-yu Xu, He-ming Zong, and Ying Guo. "Adaptability Analysis of Ultra-short Radius Sidetracking Horizontal Well Technology." In Proceedings of the International Field Exploration and Development Conference 2021, 4321–29. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2149-0_403.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Horizontal field"

1

Orlov, D. "Monitoring of horizontal wells operation, using tracer profiling of the inflow, at the Russian field." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154028.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bokarev, A. Y., and D. M. Ezersky. "Key for Turon: an example of petrophysical modeling taking into account field development with horizontal wells." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154061.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Moiseev, S. A., Yu A. Plitkina, D. P. Patrakov, and A. S. Glebov. "Improving Development Efficiency of Hard-to-Recover Reserves of Tyumen Formation (JK2-9) at Krasnoleninsky Field." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154021.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Yanaev, A. M., A. I. Lisitsyn, P. V. Lupanov, D. A. Korobitsyn, V. B. Karpov, and N. V. Parshin. "Development of an approach for hydraulic fracturing operations and a decision-making methodology in the Sredne-Nazymskoye field." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154073.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Al-Shidhani, S., A. Al-Bimani, J. van der Bok, K. Al-Saadi, P. Schoepfer, and P. Verwey. "Horizontal Wells Rejuvenate the Mature Yibal Field." In International Conference on Horizontal Well Technology. Society of Petroleum Engineers, 1996. http://dx.doi.org/10.2118/37059-ms.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Seryakov, A. V., and M. Yu Podberezhny. "3D modeling of multilateral well (fishbone) junction stability in development conditions of the Yamal-Nenets Autonomous District oil field." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kuklinsky, A. Y., S. Y. Shtun, A. V. Ermolovsky, Y. S. Tarasova, M. A. Nevestenko, E. V. Zubareva, and M. V. Sadmanova. "Geochemical monitoring of oil molecular composition during field development for geological model updating and optimization of horizontal wells performance." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154015.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Krivosheev, N. V., N. N. Krivosheeva, R. A. Shadchnev, and D. N. Sharapov. "Feasibility study for optimizing the design of double-barrel wells of the D33 field on the Baltic Sea shelf." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154070.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Novikov, I. L., А. А. Alekseev, M. V. Zimoglyad, L. R. Samigullin, V. M. Nagovitsyn, A. Y. Bydzan, and D. A. Vasechkin. "Separate Production Metering From Each Formation When Integrating Taml-1 Well Construction Technology with Quantum Plt at The Novoportovskoye Field." In Horizontal Wells 2021. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202154046.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Connor, J. K., L. B. Hamende, and D. C. Holloway. "Princess Field Horizontal Development: Back to our Roots." In International Conference on Horizontal Well Technology. Society of Petroleum Engineers, 1996. http://dx.doi.org/10.2118/37136-ms.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Horizontal field"

1

Rougeot, J. E., and K. A. Lauterbach. The drilling of a horizontal well in a mature oil field. Office of Scientific and Technical Information (OSTI), January 1991. http://dx.doi.org/10.2172/6220198.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Michael W. Rose. APPLICATION OF WATER-JET HORIZONTAL DRILLING TECHNOLOGY TO DRILL AND ACIDIZE HORIZONTAL DRAIN HOLES, TEDBIT (SAN ANDRES) FIELD, GAINES COUNTY, TEXAS. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/859239.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Butterfield, C. P., W. P. Musial, and D. A. Simms. Combined Experiment Phase 1. [Horizontal axis wind turbines: wind tunnel testing versus field testing]. Office of Scientific and Technical Information (OSTI), October 1992. http://dx.doi.org/10.2172/6882369.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Korte, N., M. Muck, P. Kearl, R. Siegrist, R. Schlosser, J. Zutman, and T. Houk. Field evaluation of a horizontal well recirculation system for groundwater treatment: Field demonstration at X-701B Portsmouth Gaseous Diffusion Plant, Piketon, Ohio. Office of Scientific and Technical Information (OSTI), August 1998. http://dx.doi.org/10.2172/296857.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Vasserman, I. Test of horizontal field measurements using two-axis Hall probes at the APS Magnetic Measurement Facility. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/645534.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Saibal Bhattacharya. Field Demonstration of Horizontal Infill Drilling Using Cost-effective Integrated Reservoir Modeling--Mississippian Carbonates, Central Kansas. Office of Scientific and Technical Information (OSTI), August 2005. http://dx.doi.org/10.2172/859154.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Godin, Oleg A. Statistical Properties of the Acoustic Field in Inhomogeneous Oceanic Environments: Acoustic Uncertainty Due to Horizontal Refraction. Fort Belvoir, VA: Defense Technical Information Center, September 2002. http://dx.doi.org/10.21236/ada629163.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Cohen, J. H. Horizontal Wells to Enhance Production in the Bottle Rock Field - Final Report - 09/30/2000 - 02/01/2001. Office of Scientific and Technical Information (OSTI), February 2001. http://dx.doi.org/10.2172/787915.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gouveia, F., and J. Shinn. Measurements of Horizontal Flow in the Vicinity of a Building: A Field Study from June to December 1999. Office of Scientific and Technical Information (OSTI), July 2004. http://dx.doi.org/10.2172/15011631.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Feltman A., J. Funaro, and R. DIFranco. To Program Power Supplies for Horizontal and Vertical High Field Quadrupole Strings to Shift Tune of AGS During Acceleration Cycle. Office of Scientific and Technical Information (OSTI), May 1985. http://dx.doi.org/10.2172/1130914.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Horizontal field' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography