Relevant bibliographies by topics / Injection location

Academic literature on the topic 'Injection location'

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

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Journal articles on the topic "Injection location"

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Lučin, Ivana, Luka Grbčić, Zoran Čarija, and Lado Kranjčević. "Machine-Learning Classification of a Number of Contaminant Sources in an Urban Water Network." Sensors 21, no. 1 (January 1, 2021): 245. http://dx.doi.org/10.3390/s21010245.

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In the case of a contamination event in water distribution networks, several studies have considered different methods to determine contamination scenario information. It would be greatly beneficial to know the exact number of contaminant injection locations since some methods can only be applied in the case of a single injection location and others have greater efficiency. In this work, the Neural Network and Random Forest classifying algorithms are used to predict the number of contaminant injection locations. The prediction model is trained with data obtained from simulated contamination event scenarios with random injection starting time, duration, concentration value, and the number of injection locations which varies from 1 to 4. Classification is made to determine if single or multiple injection locations occurred, and to predict the exact number of injection locations. Data was obtained for two different benchmark networks, medium-sized network Net3 and large-sized Richmond network. Additionally, an investigation of sensor layouts, demand uncertainty, and fuzzy sensors on model accuracy is conducted. The proposed approach shows excellent accuracy in predicting if single or multiple contaminant injections in a water supply network occurred and good accuracy for the exact number of injection locations.
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Jeong, Eunju, Sean O’Byrne, In-Seuck Jeung, and A. F. P. Houwing. "The Effect of Fuel Injection Location on Supersonic Hydrogen Combustion in a Cavity-Based Model Scramjet Combustor." Energies 13, no. 1 (January 1, 2020): 193. http://dx.doi.org/10.3390/en13010193.

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Supersonic combustion experiments were performed using three different hydrogen fuel-injection configurations in a cavity-based model scramjet combustor with various global fuel–air equivalence ratios. The configurations tested were angled injection at 15° to the flow direction upstream of the cavity, parallel injection from the front step, and upstream injection from the rear ramp. Planar laser-induced fluorescence of the hydroxyl radical and time-resolved pressure measurements were used to investigate the flow characteristics. Angled injection generated a weak bow shock in front of the injector and recirculation zone to maintain the combustion as the equivalence ratio increased. Parallel and upstream injections both showed similar flame structure over the cavity at low equivalence ratio. Upstream injection enhanced the fuel diffusion and enabled ignition with a shorter delay length than with parallel injection. The presence of a flame near the cavity was determined while varying the fuel injection location, the equivalence ratio, and total enthalpy of the air flow. The flame characteristics agreed with the correlation plot for the stable flame limit of non-premixed conditions. The pressure increase in the cavity for reacting flow compared to non-reacting flow was almost identical for all three configurations. More than 300 mm downstream of the duct entrance, averaged pressure ratios at low global equivalence ratio were similar for all three injection configurations.
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Aksamit, Nikolas O., Ben Kravitz, Douglas G. MacMartin, and George Haller. "Harnessing stratospheric diffusion barriers for enhanced climate geoengineering." Atmospheric Chemistry and Physics 21, no. 11 (June 11, 2021): 8845–61. http://dx.doi.org/10.5194/acp-21-8845-2021.

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Abstract. Stratospheric sulfate aerosol geoengineering is a proposed method to temporarily intervene in the climate system to increase the reflectance of shortwave radiation and reduce mean global temperature. In previous climate modeling studies, choosing injection locations for geoengineering aerosols has, thus far, only utilized the average dynamics of stratospheric wind fields instead of accounting for the essential role of time-varying material transport barriers in turbulent atmospheric flows. Here we conduct the first analysis of sulfate aerosol dispersion in the stratosphere, comparing what is now a standard fixed-injection scheme with time-varying injection locations that harness short-term stratospheric diffusion barriers. We show how diffusive transport barriers can quickly be identified, and we provide an automated injection location selection algorithm using short forecast and reanalysis data. Within the first 7 d days of transport, the dynamics-based approach is able to produce particle distributions with greater global coverage than fixed-site methods with fewer injections. Additionally, this enhanced dispersion slows aerosol microphysical growth and can reduce the effective radii of aerosols up to 200–300 d after injection. While the long-term dynamics of aerosol dispersion are accurately predicted with transport barriers calculated from short forecasts, the long-term influence on radiative forcing is more difficult to predict and warrants deeper investigation. Statistically significant changes in radiative forcing at timescales beyond the forecasting window showed mixed results, potentially increasing or decreasing forcing after 1 year when compared to fixed injections. We conclude that future feasibility studies of geoengineering should consider the cooling benefits possible by strategically injecting sulfate aerosols at optimized time-varying locations. Our method of utilizing time-varying attracting and repelling structures shows great promise for identifying optimal dispersion locations, and radiative forcing impacts can be improved by considering additional meteorological variables.
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Luboń, Katarzyna. "Influence of Injection Well Location on CO2 Geological Storage Efficiency." Energies 14, no. 24 (December 20, 2021): 8604. http://dx.doi.org/10.3390/en14248604.

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An analysis of the influence of injection well location on CO2 storage efficiency was carried out for three well-known geological structures (traps) in deep aquifers of the Lower Jurassic Polish Lowlands. Geological models of the structures were used to simulate CO2 injection at fifty different injection well locations. A computer simulation showed that the dynamic CO2 storage capacity varies depending on the injection well location. It was found that the CO2 storage efficiency for structures with good reservoir properties increases with increasing distance of the injection well from the top of the structure and with increasing depth difference to the top of the structure. The opposite is true for a structure with poor reservoir properties. As the quality of the petrophysical reservoir parameters (porosity and permeability) improves, the location of the injection well becomes more important when assessing the CO2 storage efficiency. Maps of dynamic CO2 storage capacity and CO2 storage efficiency are interesting tools to determine the best location of a carbon dioxide injection well in terms of gas storage capacity.
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Jin, Lei, Chao Li, Balaji Palanisamy, and James Joshi. "k-Trustee: Location injection attack-resilient anonymization for location privacy." Computers & Security 78 (September 2018): 212–30. http://dx.doi.org/10.1016/j.cose.2018.07.002.

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Eucher, Philippe M., Jean-Paul Haxhe, Jean-François De Wispelaere, Serge Broka, and Jean-Claude Schoevaerdts. "Pulmonary nodule location by coil injection." Annals of Thoracic Surgery 60, no. 6 (December 1995): 1858–59. http://dx.doi.org/10.1016/0003-4975(96)81283-5.

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7

Puri, R., and S. R. Gollahalli. "Effects of Location and Direction of Diluent Injection on Radiation and Pollutant Emissions of a Burning Spray." Journal of Energy Resources Technology 111, no. 1 (March 1, 1989): 16–21. http://dx.doi.org/10.1115/1.3231395.

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Introduction of diluents into diffusion flames is an effective method of changing their combustion and pollutant emission characteristics. Since the dominant thermochemical processes vary from region to region of a burning spray, diluent injection at different locations of a flame can affect its overall characteristics differently. This study examines the effects of location and orientation of N2 injection into an air-atomized kerosene spray flame. Flame length, radiant emission, temperature profiles, flame opacity, and concentration profiles of NO, CO, and soot are measured. The overall emission indexes of NO, CO, and soot are calculated. Results show that the diluent injection in the axial downstream direction is superior to the radial injection from the point of reducing heat loss to the combustor walls. The location of injection affects flame characteristics substantially. Injection of diluent into midflame region produces largest reductions in radiation, flame length, and emissions of soot and CO. Nitric oxide emission does not depend significantly on the location of injection.
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JAVADZADEHKALKHORAN, Majid, Akın KUTLAR, Ömer CİHAN, and Hüseyin Emre DOĞAN. "Determination of the injector type and location for a direct injected Wankel engine." International Journal of Automotive Engineering and Technologies 11, no. 4 (December 30, 2022): 129–39. http://dx.doi.org/10.18245/ijaet.1179168.

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Direct injection on the Wankel engines has been practiced since the 1970’s. By applying direct injection in the Wankel engine, the specific fuel consumption and HC emissions, which are seen as disadvantages for this engine, might be reduced and the mixture formation is improved. In order to obtain a better mixture formation, the fuel injector must be located in a proper place and a correct direction. In addition, the most suitable injector for the engine structure should be selected. In this study, direct injection was applied for the RENESIS 13B Wankel engine and injector selection for the engine and the location of the injector on the housing were examined. In addition, the diameter of orifice and flow rate characteristics of the injector were investigated. According to the results, two types of injectors were selected. These injectors were called as low speed and high speed. An injector with a narrow nozzle angle (<30°) was used to deliver the fuel to the leading of the chamber, and the fuel injected after the intake ports closed. The orifice diameters of low-speed and high- speed injectors were measured 0.33 and 0.45 mm, respectively. In addition, both injectors have low speed rates when injection duration was below 2 ms. This flow rate was increased by providing high voltage.
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Haddad, Header, Syed H. Masood, and Abul B. M. Saifullah. "Gate Location and its Effects on Product Quality in Injection Moulding." Advanced Materials Research 32 (February 2008): 181–84. http://dx.doi.org/10.4028/www.scientific.net/amr.32.181.

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Design of gate location is a crucial factor in achieving product quality in injection moulding. It Influences the manner of plastic flow into the cavity. The optimum gate location improves quality and avoids products defects. This paper presents an investigation for the effects of gate location on product quality in injection moulding. Plastic advisor, simulation software embedded in Pro/Engineer package has been used for flow analysis of plastic product for selected gate locations. It has been shown that optimum gate location improves cooling quality resulting in a better product quality. The previous conventional experiences by individual credited engineers have been considered.
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Witten, Ben, and Jeffrey Shragge. "Image-domain velocity inversion and event location for microseismic monitoring." GEOPHYSICS 82, no. 5 (September 1, 2017): KS71—KS83. http://dx.doi.org/10.1190/geo2016-0561.1.

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Microseismic event locations obtained from seismic monitoring data sets are often a primary means of determining the success of fluid-injection programs, such as hydraulic fracturing for oil and gas extraction, geothermal projects, and wastewater injection. Event locations help the decision makers to evaluate whether operations conform to expectations or parameters need to be changed and may be used to help assess and reduce the risk of induced seismicity. However, obtaining accurate event location estimates requires an accurate velocity model, which is not available at most injection sites. Common velocity updating techniques require picking arrivals on individual seismograms. This can be problematic in microseismic monitoring, particularly for surface acquisition, due to the low signal-to-noise ratio of the arrivals. We have developed a full-wavefield adjoint-state method for locating seismic events while inverting for P- and S-wave velocity models that optimally focus multiple complementary images of recorded seismic events. This method requires neither picking nor initial estimates of event location or origin time. Because the inversion relies on (image domain) residuals that satisfy the differential semblance criterion, there is no requirement that the starting model be close to the true velocity. We determine synthetic results derived from a model with conditions similar to a field-acquisition scenario in terms of the number and spatial sampling of receivers and recorded coherent and random noise levels. The results indicate the effectiveness of the methodology by demonstrating a significantly enhanced focusing of event images and a reduction of 95% in event location error from a reasonable initial model.
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Dissertations / Theses on the topic "Injection location"

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Singh, Shailendra. "Automated fault injection and analysis for wired/wireless networks." Diss., Online access via UMI:, 2009.

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2

Shane, Amanda. "Defining Intervention Location from Social Network Geographic Data of People who Inject Drugs In Winnipeg, Canada." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24394.

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Sharing and inappropriate discarding of syringes and drug use equipment can lead to transmission of bloodborne pathogens and decreased sense of community safety. To reduce these risks, interventions such as syringe drop boxes, are implemented. However, little consideration has been made of the social and spatial networks of the injection drug use (IDU) populations in the placement of these drop boxes. A sample of IDU was obtained through respondent driven sampling in Winnipeg, Canada in 2009. Characteristics of the sample and distribution of these characteristics through the social network were assessed. A spatial network was constructed which focused on the connections between IDU and specific geographic locations. Measures of centrality were calculated using Pajek and the geographic network was mapped using ArcGIS. Analysis of the social network revealed variation among network components in demographic and drug use characteristics. Spatial analysis revealed geographic clustering, quantified through network centrality measures. There was congruence between locations of high degree and current drop box placement in Winnipeg. This research illustrates the benefit of combining IDU social network and spatial data to inform evidence-based municipal policies and programs.
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Johnson, Darrel E. "Estimating the Dynamic Sensitive Cross Section of an FPGA Design through Fault injection." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd803.pdf.

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Chien, Hua-tso, and 簡華佐. "A Study of Optimal Gate Location in Injection Molding." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/xzmycs.

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碩士
國立臺灣科技大學
機械工程系
94
Gate location has the direct effect on the melt flow direction and balance,and improper design will produce inevitable defects.Therefore, the gate location with flow balance is one of the important key points of mold design of plastic injection molding. This study adopts flow resistance concept in the light of different geometric shape, mesh size, materials (ABS+PC, PP, HDPE) to explore the optimal gate location to reach the filling process with the flow balance. The results show that the optimal gate location is able to effectively improve the over-packing, high wall shear stress and disproportionate temperature distribution which will influence plastic part quality. After the optimal gate location being obtained, one case was further studied by using Taguchi method, genetic algorithm, simulated annealing method, artificial neural network and response surface method, with single or hybrid mode to find the optimal molding parameter setting such as mold temperature, melt temperature, injection time, packing time and packing pressure. It is revealed that the optimal method is able to effectively reduce plastic part warpage. Taguchi method can achieve satisfactory result with small relatively amount of simulations. The genetic algorithm and simulated annealing method couples with artificial neural network or response surface method have the advantage to tune the processing parameters,and to promote product quality.
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鄭鵬遠. "CAE Analysis for Ejection Force and Pins Location of Plastic Injection." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/97304557698799878588.

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碩士
逢甲大學
機械與電腦輔助工程學系
102
In recent years, use computer to simulation analysis which is more importance. For now, the trend of industry move toward to high precision, complicated shape, the cost of materials which is high. Because of these factors, it becomes very important to simulation analysis before we experiment. By using CAE Software to find the problems which designers neglects events. That makes ejector system be digital. Find out the problems when the product ejection. By using Mold flow Software and ANSYS Software to analysis structure and the mold flows, to estimate the Ejection Force of distribute when plastic products ejection. Designers design the position of pin according to these positions. There are total eight different ways to design the configuration of pins.Then analysis whether the product of plastic may be out of shape. The result shown, on the basis of cost, the number of pins should be twenty four. If according to the product of stress, it should have twenty nine pins which is better configuration. Verification feasibility of three cases, indicate that the logic of the resistance of the distributed is as the same as that of the position of pins. And the resistance when ejection that associated with the shape of the plastic product, designers also consider the factors.
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Chan, Chien-Lin, and 陳建霖. "Cooling Channels Location Optimization of Injection Molding Using Integration of Moldflow and Genetic Algorithm." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/97385889454689490701.

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碩士
大同大學
機械工程學系(所)
94
The cooling channels design for injection molding usually depends on the designer’s experiences or the process of trial-and-error. Even though the designer could find out the design fitting the requirements through several trials, it still cannot guarantee that the results are good enough specially for high precision component or complicated sharp product. In recently years, the computer-aided engineering (CAE) has been generally applied in product development for various fields. It contributes for enhancing design ability of complicated and high precision product. The purpose of this study is to find out the optimal arrangement of cooling channels of injection molding by integration of the genetic algorithms for optimization search and the Moldflow software for injection molding analysis. In order to verify the architecture and performance of optimization program using genetic algorithms (GA), several test functions are utilized to check the accuracy and execution efficiency of developed program. Then the developed GA program was integrated with Moldflow software in optimization of cooling channels location. From the results of two case studies, it was shown that the cooling channels design system implemented in this study could offer designer with different options in selection the arrangement of cooling channels for injection molding. The developed architecture can enhance the design efficiency of cooling channels, upgrade product quality, lower development cost and increase economic benefits.
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Chiang, Ye-Shang, and 江也聖. "Water Channel Location Optimization of Injection Molding Using Glowworm Swarm Algorithm with Variable Step." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/36718306063903449367.

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碩士
大同大學
機械工程學系(所)
100
The cooling channel design for injection molding is important for quality control of product. But it is usually depends on the designer’s experiences or the process of trial-and-error to approach the design fitting the requirements of product through many trials. For high precision or complex product the designer may not find out the cooling channel layout fulfilling the design requirements In recently years, the computer-aided engineering (CAE) has been generally applied in product development for various fields. It contributes for enhancing design ability of complicated and high precision product. The purpose of this study is to find out the optimal arrangement of cooling channels of injection molding by integration of the glowworm swarm algorithm for optimization search and the Moldflow software for injection molding analysis. In order to verify the architecture and performance of optimization program using Glowworm Swarm Optimization (GSO), several test functions are utilized to check the accuracy and execution efficiency of developed program. Then the developed GSO program was integrated with Moldflow software in optimization of cooling channel locations. From the results of case study, it was shown that the cooling channel design system implemented in this study could offer designer with different options in selection the arrangement of cooling channels for injection molding. The developed architecture can enhance the efficiency of cooling channel design, upgrade product quality, lower development cost and increase economic benefits.
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Tseng, Yi-Che, and 曾義哲. "Gate Location Optimization of Injection Molding Using Integration of Moldflow and Differential Evolution Algorithm." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06882452848425457371.

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碩士
大同大學
機械工程學系(所)
100
Abstract The gate location for injection molding plays an important role for quality of plastic product. It often depends on the designer’s experiences using the process of trial-and-error for gate location design. Even through the designer could find out the design fitting the requirements through several trials, but it still cannot guarantee that the results are good enough specially for complicated shape or high precision product. In recently years, the computer-aided engineering (CAE) contributes for enhancing design ability for development of high precision and complicated products. The products manufactured using injection molding may create some defects such as warpage or welding line which was influenced to the quality of products. The main purpose of this study is using differential evolution algorithm as global searching tool for optimization of gate location. In order to verify the architecture and performance of optimization program using differential evolution algorithm, several test functions are utilized to check execution efficiency and the accuracy of developed program first. Then the developed DE program was integrated with moldflow software for searching the best gate location that minimizes the warpage with constraint of the arrangement of weld line. From the result of case study, it was shown that the integration of DE with moldflow implemented in this study could offer designer with different options in selection the best arrangement of gate locations of injection molding with constraints of weld lines prevention and warpage reduction. The developed architecture can enhance the performance of gate location design, improvement of product quality, reduction of development cost and enhancement of market competition.
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Weber, Daniel Brent. "The use of capacitance-resistance models to optimize injection allocation and well location in water floods." 2009. http://hdl.handle.net/2152/6648.

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Reservoir management strategies traditionally attempt to combine and balance complex geophysical, petrophysical, thermodynamic and economic factors to determine an optimal method to recover hydrocarbons from a given reservoir. Reservoir simulators have traditionally been too large and run times too long to allow for rigorous solution in conjunction with an optimization algorithm. It has also proven very difficult to marry an optimizer with the large set of nonlinear partial differential equations required for accurate reservoir simulation. A simple capacitance-resistance model (CRM) that characterizes the connectivity between injection and production wells can determine an injection scheme maximizes the value of the reservoir asset. Model parameters are identified using linear and nonlinear regression. The model is then used together with a nonlinear optimization algorithm to compute a set of future injection rates which maximize discounted net profit. This research demonstrates that this simple dynamic model provides an excellent match to historic data. Based on three case studies examining actual reservoirs, the optimal injection schemes based on the capacitance-resistive model yield a predicted increase in hydrocarbon recovery of up to 60% over the extrapolated exponential historic decline. An advantage of using a simple model is its ability to describe large reservoirs in a straightforward way with computation times that are short to moderate. However, applying the CRM to large reservoirs with many wells presents several new challenges. Reservoirs with hundreds of wells have longer production histories – new wells are created, wells are shut in for varying periods of time and production wells are converted to injection wells. Additionally, ensuring that the production data to which the CRM is fit are free from contamination or corruption is important. Several modeling techniques and heuristics are presented that provide a simple, accurate reservoir model that can be used to optimize the value of the reservoir over future time periods. In addition to optimizing reservoir performance by allocating injection, this research presents a few methods that use the CRM to find optimal well locations for new injectors. These algorithms are still in their infancy and represent the best ideas for future research.
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Vlček, Josef. "Automatické zpracování mikroseismických dat a jejich vztah k hydraulické injektáži." Doctoral thesis, 2021. http://www.nusl.cz/ntk/nusl-437903.

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Microseismic monitoring is an integral part of scientific experiments or industrial operations associated with the hydraulic fracturing of bedrock, which is an effort to increase the permeability of rocks in the area and improve the exploitation, whether of heat, oil or natural gas. Monitoring of such newly formed or growing original fractures, usually followed by seismic events, is very important for observation and describing the hydraulic fracturing itself and its progress over time. Since the number of such events recorded is usually very high, classical methods of earthquake processing, where the arrival times of seismic waves are determined manually, seem to be very inappropriate. For this reason, automatic methods are used to process such datasets, which do not require manual determination of the arrival times of the seismic waves. In our case, the data were recorded by a dense network of surface receivers arranged in the shape of a ten-arm star. It was a total of more than nine hundred groups of vertical geophones, of which more than a quarter were also supplemented by a three-component seismic sensor. We then created an automatic procedure for the described network, the result of which is the determination of the location and the source mechanism for each seismic event. The recorded...
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Books on the topic "Injection location"

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Prinetto, Paolo, and Alfredo Benso. Fault Injection Techniques and Tools for Embedded Systems Reliability Evaluation. Springer London, Limited, 2006.

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Fault Injection Techniques and Tools for Embedded Systems Reliability Evaluation. Springer, 2010.

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3

Kahn, S. Lowell. Balloon-Assisted Thrombin Injection for Pseudoaneurysms with Wide or Short Neck Morphology. Edited by S. Lowell Kahn, Bulent Arslan, and Abdulrahman Masrani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199986071.003.0021.

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Pseudoaneurysms after cardiac catheterizations are not uncommon. Although most commonly they occur superficial to the common femoral artery, they are reported to occur at any location intentionally or unintentionally accessed. Ultrasound-assisted thrombin injection is a mainstay of therapy in appropriate patients. Although variations exist regarding the optimal location and amount of thrombin injection, the superior outcomes, low complication rate, and low cost associated with this method render great appeal to its utilization. This chapter describes an adjunctive technique (as well as a simple modification) to prevent the entrance of thrombin to the vasculature using a balloon to isolate the pseudoaneurysm. Although typically not necessary, this technique is valuable in the treatment of high-risk pseudoaneurysms and is well described in the literature.
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Fault Injection Techniques and Tools for Embedded Systems Reliability Evaluation (Frontiers in Electronic Testing). Springer, 2003.

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Shankar, Hariharan, and Karan Johar. Piriformis Muscle, Psoas Muscle, and Quadratus Lumborum Muscle Injections: Ultrasound. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199908004.003.0047.

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This chapter describes the anatomy, technique, available evidence, and complications of piriformis, psoas, and quadratus lumborum muscle injections. Traditionally landmark-based injections of the piriformis muscle were performed using the posterior inferior iliac spine and the greater trochanter as bony landmarks. Subsequently, fluoroscopy, electromyography, and CT were used to facilitate the injection. Activation of myofascial trigger points within the iliopsoas muscle can cause referred pain to the groin and anterior thigh. Landmark-based injections and CT-guided iliopsoas injections have been described. But they carry the risk of radiation, bowel injury, intravascular injection, and nerve injury. Ultrasound-guided injection into the psoas muscle may be performed at two different locations, the iliopsoas muscle and the iliopsoas tendon. The quadratus lumborum is a common cause of low back pain, and ultrasound-guided injection of local anesthetic into quadratus lumborum muscle may be performed.
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Grami, Vahid, Salim M. Hayek, and Samer N. Narouze. Lumbar Transforaminal and Nerve Root Injections: Fluoroscopy. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199908004.003.0016.

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The transforaminal approach, compared with the interlaminar approach, allows injectate delivery directly at the target nerve root, placing greater amounts of medication at the location of the suspected pathology. The utility of selective nerve root injections includes blocking with local anesthetics specific nerve roots suspected of transmitting radicular symptoms. These diagnostic radicular blocks are often used for presurgical planning. The fluoroscopic-guided lumbar transforaminal epidural steroid injection approaches mentioned in this chapter have been described to safely and effectively deposit medication in the epidural space, adjacent to affected nerve roots transmitting pain signals. It is imperative that proper patient selection, physician training, thorough knowledge of anatomy, vigilance, and effective use of fluoroscopy and radiocontrast dye help to avoid catastrophic tissue damage and embolization.
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Bolash, Robert B., and Kenneth B. Chapman. Piriformis Muscle Injections: Fluoroscopy. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199908004.003.0046.

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Piriformis syndrome is an entrapment neuropathy caused by compression or irritation of the sciatic nerve as it courses in proximity to the piriformis muscle. Conservative treatment modalities for piriformis syndrome include the use of anti-inflammatory analgesic medications or muscle relaxants. Physical therapy is often employed to correct the abnormal pelvic biomechanics and focus on stretching the piriformis muscle. Prior to proceeding with invasive surgical approaches, this chapter advocates the use of piriformis muscle injection. The technique both confirms the diagnosis and offers therapeutic value while avoiding the risks, expense, and potential adverse outcomes associated with surgical interventions. A combined fluoroscopic and nerve stimulator guided technique is recommended to identify bony landmarks, verify the perisciatic location, confirm intramuscular spread of the injectate, and avoid intravascular injection of particulate steroid. Transient sciatic nerve block caused by spillover of the local anesthetic administered into the piriformis muscle is a common complication.
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Steiner, Lisa A. Infections of the Hand. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199976805.003.0047.

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Hand infections can be delineated by type and location of infection, by a polymicrobial vs single microbial colonization, and by the type of organism. They are most often caused by superficial injury or trauma. Early identification and timely treatment can significantly improve the morbidity associated with hand infections. In addition to determining the source and mechanism of infection, it is important to identify tetanus immunization status, prior injury to the affected area, immune status, occupation, and hand dominance. Some hand infections (eg, paronychia, felon, herpetic whitlow, and cellulitis) can be treated in the emergency department and discharged with close follow-up. Deep space abscesses and infections caused by bite wounds involving tendons will require either observation, admission, or surgery depending on their severity. Take into account a patient’s comorbidities—diabetes, immunosuppression, injection drug use, inability to follow up for re-evaluation, and ability to fill antibiotic prescriptions—upon disposition.
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Torgerson,, Paul R., C. N. L. Macpherson, and D. A. Vuitton. Cystic echinococcosis. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0060.

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Cystic echinococcosis (CE)\cystic hydatid disease is one of the most widespread and important global helminth zoonoses. The parasite Echinococcus granulosus is maintained in a wide spectrum of intermediate hosts, including sheep, goats, camels, cattle, pigs and equines. A number of wild intermediate hosts occur, including cervids in the northern part of the North American continent and Eurasia, marsupials in Australia and wild herbivores in East and southern Africa. The application of a range of molecular techniques to the characterization of the parasite has confirmed the existence of mostly host-adapted strains and genotypes of the parasite and several new species have been proposed. The ubiquitous domestic dog serves as the most important definitive host for the transmission of the parasite throughout its wide geographical range.A wide range of diagnostic techniques, including necropsy, arecoline purgation, coproantigen ELISA and DNA based tests are available for detecting E. granulosus infection in the definitive host. In intermediate animal hosts, diagnosis at post mortem still remains the most reliable option. In humans, imaging techniques including ultrasound, nuclear magnetic resonance (NMR) or computer aided tomography (CAT-scan provide not only a method of diagnosis but also reveal important clinical information on the location, condition, number and size of the hydatid cysts in man. Of these ultrasound is the most widely used diagnostic technique and is the only imaging technique for screening of populations in rural areas, where the disease is most common. A classification system has been developed which can be used to assess the likely development of a cyst and hence guide the clinician in treatment options for the patient. Treatment relies on surgery and/or percutaneous interventions, especially ‘Puncture, Aspiration, Injection, Re-aspiration’ (PAIR) and/or antiparasitic treatment with albendazole (and alternatively mebendazole).CE is largely a preventable disease. Successful elimination programmes have focused on frequent periodic treatments of dogs with anthelmintics and the control of slaughter of domestic livestock. In many regions elimination or even control remains a problem as the parasite is endemic over vast areas of low income countries where there may be limited resources for control. In some areas, such as former communist administered countries, the parasite is resurgent. New tools are becoming available to control the parasite, including a highly effective vaccine in sheep which prevents the infection in sheep and breaks the transmission cycle. In addition cost effective methods are being developed which may be appropriate in low income countries where financial resources are not available for intensive control programmes that have been successful in high income countries.
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Book chapters on the topic "Injection location"

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Rios, Ruben, Jorge Cuellar, and Javier Lopez. "Robust Probabilistic Fake Packet Injection for Receiver-Location Privacy in WSN." In Computer Security – ESORICS 2012, 163–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33167-1_10.

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Li, Xingyuan. "Fault Location for Small Current Grounding System Based on Injection Method." In 2020 International Conference on Data Processing Techniques and Applications for Cyber-Physical Systems, 1149–53. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1726-3_143.

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Haddad, Header, S. H. Masood, and A. B. M. Saifullah. "Gate Location and its Effects on Product Quality in Injection Moulding." In Frontiers in Materials Science and Technology, 181–84. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-475-8.181.

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Tripathy, Srinibas, Sridhar Sahoo, and Dhananjay Kumar Srivastava. "Optimization of Injector Location on the Cylinder Head in a Direct Injection Spark Ignition Engine." In Proceedings of the 7th International Conference on Advances in Energy Research, 847–55. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5955-6_80.

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Song, Ling, Wei Ma, and Jin Ye. "Location Privacy Protection for Sink Node in WSN Based on K Anonymous False Packets Injection." In Applications and Techniques in Information Security, 67–78. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2907-4_6.

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Fernandes, Célio, António J. Pontes, Júlio C. Viana, and António Gaspar-Cunha. "Multi-Objective Optimization of Gate Location and Processing Conditions in Injection Molding Using MOEAs: Experimental Assessment." In Lecture Notes in Computer Science, 373–87. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15892-1_25.

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Mallikarjunaswamy, S., N. Sharmila, G. K. Siddesh, K. R. Nataraj, and M. Komala. "A Novel Architecture for Cluster Based False Data Injection Attack Detection and Location Identification in Smart Grid." In Lecture Notes in Mechanical Engineering, 599–611. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3497-0_48.

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Pyeon, Cheol Ho. "Neutron Spectrum." In Accelerator-Driven System at Kyoto University Critical Assembly, 125–56. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0344-0_5.

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AbstractThe subcritical multiplication factor is considered an important index for recognizing, in the core, the number of fission neutrons induced by an external neutron source. In this study, the influences of different external neutron sources on core characteristics are carefully monitored. Here, the high-energy neutrons generated by the neutron yield at the location of the target are attained by the injection of 100 MeV protons onto these targets. In actual ADS cores, liquid Pb–Bi has been selected as a material for the target that generates spallation neutrons and for the coolant in fast neutron spectrum cores. The neutron spectrum information is acquired by the foil activation method in the 235U-fueled and Pb–Bi-zoned fuel region of the core, modeling the Pb–Bi coolant core locally around the central region. The neutron spectrum is considered an important parameter for recognizing information on neutron energy at the target. Also, the neutron spectrum evaluated by reliable methodologies could contribute to the accurate prediction of reactor physics parameters in the core through numerical simulations of desired precision. In the present chapter, experimental analyses of high-energy neutrons over 20 MeV are conducted after adequate preparation of experimental settings.
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Li, Beibei, Qingyun Du, Jiarui Song, Aohan Li, and Xiaoxia Ma. "Locating False Data Injection Attacks on Smart Grids Using D-FACTS Devices." In Service-Oriented Computing, 287–301. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91431-8_18.

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Chashchin, N. S., A. P. Koval, and A. S. Gruzdev. "A Study of Vacuum Assisted Resin Injection for Molding Hard-To-Reach Locations in the Manufacture of Parts." In Lecture Notes in Mechanical Engineering, 311–17. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85233-7_37.

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Conference papers on the topic "Injection location"

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Huie, Lauren M., and Mark L. Fowler. "Biasing emitter location estimates via false location injection." In 2011 IEEE Statistical Signal Processing Workshop (SSP). IEEE, 2011. http://dx.doi.org/10.1109/ssp.2011.5967672.

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Korneev, Valeri, and Thomas Daley. "Microseismic location uncertainty during fluid injection." In SEG Technical Program Expanded Abstracts 2012. Society of Exploration Geophysicists, 2012. http://dx.doi.org/10.1190/segam2012-0848.1.

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Lin, Baojiu, and Won Gil Ryim. "Gate Location Optimization in Injection Molding Processing." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1234.

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Abstract Improvements in part quality and cost reduction are the primary objectives of CAE use in the injection molding industry. Engineers use advanced injection molding simulation software to analyze and verify their part designs. Traditionally, engineers have had to rerun simulations to verify the effects of changes in gate locations. For complex models, simulations are very time consuming. To reduce the design cycle time, a Design Optimization Module is developed by C-MOLD. One of the functions of this new software module is to automatically select optimal gate locations. This innovative technology is the result of close R&D collaboration between C-MOLD and LG-PRC in Korea. An overview of gate location optimization technology is presented in this paper, and several examples are also presented as illustration.
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Zhang, Luzeng, and Hee-Koo Moon. "Turbine Blade Film Cooling Study: The Effects of Film Hole Location on the Pressure Side." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27546.

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In efforts to optimize turbine blade film cooling, film effectiveness on the pressure side was investigated for shaped hole injections at three streamwise locations in a warm cascade that simulated realistic engine operation conditions. Local film effectiveness distribution was obtained for individual row of injections as well as the combination of two and three rows using the pressure sensitive paint (PSP) technique. Nitrogen gas was used to simulate cooling flow as well as a tracer gas to indicate oxygen concentration such that film effectiveness by the mass transfer analogy could be obtained. Three different cooling mass flows were injected to each of the film cooling rows and also the combination of them. For comparison among the locations, the same mass flow ratios (MFR) were kept for each of the rows. The corresponding blowing ratios were also provided for comparison. Local film effectiveness distributions were measured, and spanwise averaged for comparison. The curvature and Mach number associated with the film hole exit location had a significant effect to the value of the film cooling effectiveness. Comparing three single row injection locations, the film effectiveness for the downstream location was found to be higher than that for the upstream location. For the combined injections, the film effectiveness downstream from the second row was not only much higher than that for single row injection, but it was also higher than that predicted by a superposition model using individual row injection results. This suggests that for blade pressure surface film cooling, upstream injection could improve the downstream injection significantly, resulting in much improved film effectiveness overall.
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Said, Ahmed O., and Ashwani K. Gupta. "Role of Fuel Injection Scheme in a High Intensity Combustor." In ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/power2016-59043.

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Fuel injection at two locations in a combustor using premixed, partially pre-mixed and non-premixed schemes has been explored for improved distributed combustion. The effect of dual location fuel injection to the combustor is examined and the results compared from single fuel injection. Focus of dual and single injection scheme was on enhancing reaction zone uniformity in the combustor. A cylindrical combustor at a combustion intensity of 36MW/m3.atm and heat load of 6.25 kW was used. Three different schemes of dual location fuel injection with different proportions of fuel injected from each injector were investigated using methane as the fuel. The role of fuel distribution between the two injection ports using constant air flow rate to the combustor at room temperature was examined on reaction zone distribution and pollutants emission. Three different equivalence ratios of 0.6, 0.7 and 0.8 were examined with different fuel distributions between the two injectors to the combustor at a constant overall thermal load. The results showed lower emission with dual location fuel injection as compared to single location. Dual location fuel injection showed 48% NO reduction with 90% of the total fuel from injector 1 while only 13% reduction was achieved with 80% of the fuel injection from this location. . OH* Chemiluminescene intensity distribution within the combustor showed that under favorable fuel injection condition, the reaction zone shifted downstream to allow longer fuel mixture preparation time prior to ignition. The longer mixing time resulted in improved mixture preparation and lower emissions. The OH* Chemiluminescene intensity distribution with fuel introduced through two injectors showed improved OH* distribution in the combustor. Improved mixture preparation enhanced reaction distribution in the combustor and lower emission.
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Seo, Jaho, Amir Khajepour, and Jan P. Huissoon. "Optimal Sensor Location to Estimate Temperature Distribution in an Injection Mould." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50228.

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The objective of this research is to identify optimal sensor locations to estimate temperature distribution in an injection mould using finite element analysis. Potential locations (referred to as target nodes) are grouped based on the similarity of their thermal response using a proposed temperature-ratio clustering method. A sensitivity analysis of the temperature distribution for these groups of target nodes identifies the sensor location for each cluster that exhibits the highest sensitivity to variable inputs. Using identified sensor locations with a neural network model, the accuracy in estimation of temperature response is evaluated.
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Kabanemi, Kalonji K., Jean-François Hétu, and Abdessalem Derdouri. "Design Sensitivity Analysis Applied to Injection Molding Process: Injection Pressure and Multi-Gate Location Optimization." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1223.

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Abstract In this work, we develop a numerical simulation method to optimize the injection molding process using the design sensitivity analysis (DSA). The optimization concerns the filling stage and focuses on the number and location of gates in a mold cavity as well as the injection pressure, considered as one of the key processing parameters, in order to minimize the fill time. Since the problem to be solved involves transient flow with free surfaces, the direct differentiation method is used to evaluate the sensitivities of the Hele-Shaw, filling fraction and the energy equations with respect to the design variables used in the analysis. The mesh domain parameterization is coped with using B-spline functions. Sensitivity equations are solved by means of finite element method. The proposed numerical approach is combined with the sequential linear and quadratic programming method of the DOT optimization tools to find the new design variables at each iteration. Starting with any initial gate locations and injection pressure profile, the method enables us to find the optimal gate locations together with the optimal injection pressure profile. Finally, numerical results involving complex mold geometries are presented and discussed to assess the validity and robustness of the proposed method.
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Huie, Lauren M., and Mark L. Fowler. "Emitter location in the presence of information injection." In 2010 44th Annual Conference on Information Sciences and Systems (CISS). IEEE, 2010. http://dx.doi.org/10.1109/ciss.2010.5464812.

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Yusefzadeh, R., M. Sharifi, Y. Rafiei, and M. Ahmadi. "Dynamic Selection of Realizations for Injection Well Location Optimization." In EAGE 2020 Annual Conference & Exhibition Online. European Association of Geoscientists & Engineers, 2020. http://dx.doi.org/10.3997/2214-4609.202011103.

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Jiang, Junjun, Jing Wu, Chengnian Long, and Shaoyuan Li. "Location of False Data Injection Attacks in Power System." In 2019 Chinese Control Conference (CCC). IEEE, 2019. http://dx.doi.org/10.23919/chicc.2019.8866478.

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Reports on the topic "Injection location"

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Mao, Stan. Location of Maximum Credible Beam Losses in LCLS Injector. Office of Scientific and Technical Information (OSTI), December 2010. http://dx.doi.org/10.2172/1000392.

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Legg, R., D. Douglas, G. A. Krafft, and Q. Saulter. Location and correction of 60 hz in the CEBAF injector. Office of Scientific and Technical Information (OSTI), August 1996. http://dx.doi.org/10.2172/282084.

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Reid, M. S., X. Wang, N. Utting, and C. Jiang. Comparison of water chemistry of hydraulic-fracturing flowback water from two geological locations at the Duvernay Formation, Alberta, Canada. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/329276.

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We analyzed and compared the water chemistry between 17 Fox Creek region samples, each from a different well, and 23 Three Hills region samples from a single well. Overall, the two regions were similar in chemical composition but showed small differences in some lower abundance dissolved elements. Additionally, we investigated changes in water chemistry of FPW over time from a single well. The majority of water quality parameters and water chemistry remained constant over the 7-month sampling time. Major ion chemistry showed increasing concentrations of Ca and Mg, and a decreasing concentration of SO4. Several trace elements also showed small trends of both increasing and decreasing concentrations over time. There was a strong correlation between Ca and Mg concentrations in both the Fox Creek region samples and Three Hills region samples, which is an indication of the mixing of formation water. However, the correlation between B and Sr was different among two region samples, which is likely due to the delayed mixing of formation water with the fracturing fluids during the flowback at different time periods of post fracturing. Likewise, Fox Creek region samples showed correlations between concentrations of Cl and Ca, Na and Ca, and Na and Mg, but these correlations were not seen in the Three Hills region samples. Geochemical modeling demonstrates that there are potential scales formed in the flowback water, but most of the minerals are still in the dissolution state in the formation. Stable isotopic analysis confirmed the mixing of injection water and the formation water.
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Kingston, A. W., A. Mort, C. Deblonde, and O H Ardakani. Hydrogen sulfide (H2S) distribution in the Triassic Montney Formation of the Western Canadian Sedimentary Basin. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329797.

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The Montney Formation is a highly productive hydrocarbon reservoir with significant reserves of hydrocarbon gases and liquids making it of great economic importance to Canada. However, high concentrations of hydrogen sulfide (H2S) have been encountered during exploration and development that have detrimental effects on environmental, health, and economics of production. H2S is a highly toxic and corrosive gas and therefore it is essential to understand the distribution of H2S within the basin in order to enhance identification of areas with a high risk of encountering elevated H2S concentrations in order to mitigate against potential negative impacts. Gas composition data from Montney wells is routinely collected by operators for submission to provincial regulators and is publicly available. We have combined data from Alberta (AB) and British Columbia (BC) to create a basin-wide database of Montney H2S concentrations. We then used an iterative quality control and quality assurance process to produce a dataset that best represents gas composition in reservoir fluids. This included: 1) designating gas source formation based on directional surveys using a newly developed basin-wide 3D model incorporating AGS's Montney model of Alberta with a model in BC, which removes errors associated with reported formations; 2) removed injection and disposal wells; 3) assessed wells with the 50 highest H2S concentrations to determine if gas composition data is accurate and reflective of reservoir fluid chemistry; and 4) evaluated spatially isolated extreme values to ensure data accuracy and prevent isolated highs from negatively impacting data interpolation. The resulting dataset was then used to calculate statistics for each x, y location to input into the interpolation process. Three interpolations were constructed based on the associated phase classification: H2S in gas, H2S in liquid (C7+), and aqueous H2S. We used Empirical Bayesian Kriging interpolation to generate H2S distribution maps along with a series of model uncertainty maps. These interpolations illustrate that H2S is heterogeneously distributed across the Montney basin. In general, higher concentrations are found in AB compared with BC with the highest concentrations in the Grande Prairie region along with several other isolated region in the southeastern portion of the basin. The interpolations of H2S associated with different phases show broad similarities. Future mapping research will focus on subdividing intra-Montney sub-members plus under- and overlying strata to further our understanding of the role migration plays in H2S distribution within the Montney basin.
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