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Artykuły w czasopismach na temat „Minimum depletion factor”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

R, Murugesan*1 Dr M. Vijayaraj2 &. Dr. K. Vetrivel. "MULTI ATTRIBUTE MINIMUM THROTTLE APPROXIMATION BASED SINKHOLE DETECTION IN MOBILE ADHOC NETWORKS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 6 (2017): 455–63. https://doi.org/10.5281/zenodo.814697.

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The presence of sinkhole attack in mobile adhoc network affects the quality of service of the network and the problem of mitigating sinkhole attack has been handled with different strategies. Still the methods suffers to achieve the mitigation performance and to overcome this issue, an efficient multi attribute minimum throttle approximation algorithm is presented in this paper. The method performs mitigation of sink hole attacks in distributed manner which improves the quality of service of the network. Each node maintains the trace about node energy, node location, displacement speed, and nu

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Burachok, Oleksandr, Oleksandr Kondrat, and Serhii Matkivskyi. "Investigation of the efficiency of gas condensate reservoirs waterflooding at different stages of development." E3S Web of Conferences 230 (2021): 01010. http://dx.doi.org/10.1051/e3sconf/202123001010.

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The study of flooding gas condensate reservoirs at different stages of depletion (25, 50, 75% of the dew point pressure and at the maximum condensation pressure) with different potential hydrocarbon content of 100, 300 and 500 g/m3 and different voidage replacement by using injection (50, 100 and 150%). The results showed a positive effect of water injection on the increase of the condensate recovery factor, but a decrease in gas production compared to the basic options of development at depletion drive. Thus, for formation systems with medium and high potential yield of liquid hydrocarbons C5

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Wang, Tong, Bo Xu, Yatong Chen, and Jian Wang. "Mechanism and Main Control Factors of CO2 Huff and Puff to Enhance Oil Recovery in Chang 7 Shale Oil Reservoir of Ordos Basin." Processes 11, no. 9 (2023): 2726. http://dx.doi.org/10.3390/pr11092726.

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The Chang 7 shale oil reservoir has low natural energy and is both tight and highly heterogeneous, resulting in significant remaining oil after depletion development. CO2 huff and puff (huff-n-puff) is an effective way to take over from depletion development. Numerous scholars have studied and analyzed the CO2 huff-n-puff mechanism and parameters based on laboratory core sample huff-n-puff experiments. However, experimental procedures are not comprehensive, leading to more general studies of some mechanisms, and existing CO2 huff-n-puff experiments struggle to reflect the effect of actual rese

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Marocchi, D., E. Antonucci, and S. Giordano. "Oxygen abundance in coronal streamers during solar minimum." Annales Geophysicae 19, no. 2 (2001): 135–45. http://dx.doi.org/10.5194/angeo-19-135-2001.

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Abstract. We present a study of the oxygen abundance relative to hydrogen in the equatorial streamer belt of the solar corona during the recent period of activity minimum. The oxygen abundance is derived from the spectroscopic observations of the outer corona performed during 1996 with the Ultraviolet Coronagraph Spectrometer (SOHO) in the ultra-violet region. This study shows that the depletion of oxygen, by almost one order of magnitude with respect to the photospheric values, found in the inner part of streamers by Raymond et al. (1997a) is a common feature of the solar minimum streamer bel

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Rusanov, A. S., A. S. Romanov, E. A. Reitblat, and D. N. Glumov. "Simulating the reservoir pressure maintenance strategy by injecting HC and non-HC gases into the Achimov reservoirs." Oil and Gas Studies, no. 3 (July 10, 2024): 83–99. http://dx.doi.org/10.31660/0445-0108-2024-3-83-99.

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Prerequisites for the study are selection of the optimal agent to maintain reservoir pressure and setting the optimal conditions under which the maximum condensate recovery factor is achieved. The aim of the article is to assess the technological efficiency of methods for increasing condensate recovery while maintaining reservoir pressure by injecting hydrocarbon (methane) and non-hydrocarbon (nitrogen, carbon dioxide) gases. The subject of this study is the Ach3-4 reservoir within the Novo-Urengoyskoye license area of the Urengoy field. The most effective methodology for identifying the state

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Lu, Qingshui, Shangzhen Liang, and Xinliang Xu. "Classification and Estimation of Irrigation Waters Based on Remote Sensing Images: Case Study in Yucheng City (China)." Sustainability 10, no. 10 (2018): 3503. http://dx.doi.org/10.3390/su10103503.

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The downstream plain of the Yellow River is experiencing some of the most severe groundwater depletion in China. Although the Chinese government has issued policies to ensure that the Yellow River can provide enough irrigation waters for this region, groundwater levels continue to decrease. Yucheng City was selected as a case study. A new method was designed to classify the cropland into various irrigated cropland. Subsequently, we analyzed data regarding these irrigated-cropland categories, irrigation norms, and the minimum amount of irrigation water being applied to cropland. The results sho

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Mukhametshin, V. V., R. U. Rabaev, and L. S. Kuleshova. "Ways to increase the resource base of the Volga-Ural oil and gas province." SOCAR Proceedings, no. 4 (December 30, 2023): 42–49. http://dx.doi.org/10.5510/ogp20230400914.

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In the conditions of one of the most representative groups of facilities containing significant oil reserves, confined to the Tournaisian stage of the Volga-Ural oil and gas province, and characterized by low rates of putting into active development, low recoverable reserves, low profitability of oil production, a study was made of the process of developing reserves under various modes operation. The reservoir energy depletion mode and the use of various in-loop waterflooding systems were considered. The parameters of waterflooding techniques have been established, which determine the oil reco

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Ciucă, Viviana Carmen, Carmen Otilia Rusănescu, and Victor Viorel Safta. "Analysis of Transfer of Tiamulin to Animal Tissue after Oral Administration: An Important Factor for Ensuring Food Safety and Environmental Protection." Pharmaceuticals 16, no. 3 (2023): 387. http://dx.doi.org/10.3390/ph16030387.

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The administration of veterinary medicinal products containing tiamulin hydrogen fumarate (THF) leads to the appearance of the following residues in animal tissues: THF and metabolites that can be hydrolyzed to 8-α-hydroxymutilin. The marker residue for tiamulin, according to Regulation EEC 2377/90, is the sum of the metabolites that can be hydrolyzed to 8-α-hydroxymutilin. The main aim of this study was to analyze the depletion of tiamulin residues and metabolites that can be hydrolyzed to 8-α-hydroxymulinin by liquid chromatography with tandem mass spectrometry (LC-MS/MS) in pig, rabbit and

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Bawuro, A.A., R.B. Voegborlo, A.A. Adimado, and S.D. Ahmed. "Evaluation of Heavy Metal Distribution in Sediments of Lake Geriyo, Adamawa State, Nigeria." Nigerian Research Journal of Engineering and Environmental Sciences 6, no. 2 (2021): 530–39. https://doi.org/10.5281/zenodo.5805112.

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<em>Monitoring of pollution level in Lake Geriyo, Adamawa State, Nigeria was conducted to assess concentration of metals (Zn, Cu, Pb and Cd) in sediments of the lake. The order of the mean concentrations of the metals investigated were Zn > Cu > Pb > Cd. Zn and Cd were below the background concentration while Pb and Cu were slightly above. The results indicated that the metals exhibit lower values than sediment quality guideline (SQG). Thus, Lake Geriyo sediment can be classified as unpolluted. Geo-accumulation index (Igeo), enrichment factor (EF), contamination factor (CF), degree of

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Hoefer, Axel, Martin Basler, Oliver Buss, et al. "INTRODUCING BURNUP CREDIT FOR EXPANSION STAGE 2 OF THE EXTERNAL SPENT FUEL POOL AT GÖSGEN NPP." EPJ Web of Conferences 247 (2021): 17007. http://dx.doi.org/10.1051/epjconf/202124717007.

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We present a summary of the actinide-plus-fission-product burnup credit criticality safety licensing analysis for Expansion Stage 2 (ES2) of the external spent fuel pool at Gösgen nuclear power plant. In ES2, the nine Expansion Stage 1 storage racks currently installed in the external spent fuel pool are going to be supplemented by nine ES2 storage racks with a significantly reduced fuel assembly pitch. They are designed for loadings with fuel assemblies above a well-defined minimum required burnup. The objective of the criticality safety analysis is to calculate the minimum required burnup va

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Ganesan, Sangeetha, Vijayalakshmi Muthuswamy, Ganapathy Sannasi, and Kannan Arputharaj. "A Comprehensive Analysis of Congestion Control Models in Wireless Sensor Networks." International Journal of Strategic Information Technology and Applications 9, no. 4 (2018): 15–37. http://dx.doi.org/10.4018/ijsita.2018100102.

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Congestion control is an important factor for performance improvement in wireless sensor networks (WSNs). Congestion occurs due to various reasons including a variation in the data rate between incoming and outgoing links, buffer size, flooding attacks and multiple inputs and minimum output capability. Various outcomes of congestion in sensor networks include immense packet loss or packet drop, fast energy depletion, unfairness across the network, reduced node performance and increased delay in packet delivery. Hence, there is an extreme need to check channel congestion in order to enhance the

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Ijaware, V. Ayodele. "Monitoring of Forest Resource Health in Akure Reserve, Ondo State Nigeria." European Journal of Agriculture and Food Sciences 3, no. 3 (2021): 7–13. http://dx.doi.org/10.24018/ejfood.2021.3.3.282.

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Remote sensing and Geographic Information System (GIS) over the years play great role when integrated in the right way to study changes taken place on the planet. Most times, these changes are natural and beyond human interaction but often times too, the changes are occasioned by human factor in the search for development and daily survival. In achieving this, the forest is made to suffer unnecessarily thereby reducing its health status through excessive forest resources depletion. This study focusses on the monitoring of forest resource health in Akure forest reserve between 1972 and 2013 usi

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Parrondo, M. C., M. Gil, M. Yela, B. J. Johnson, and H. A. Ochoa. "Antarctic ozone variability inside the Polar Vortex estimated from balloon measurements." Atmospheric Chemistry and Physics Discussions 13, no. 6 (2013): 15663–95. http://dx.doi.org/10.5194/acpd-13-15663-2013.

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Abstract. 13 yr of ozonesoundings at the Antarctic Belgrano II station (78° S, 34.6° W) have been analyzed to establish a climatology of stratospheric ozone and temperature over the area. The station is inside the polar vortex during the period of development of chemical ozone depletion. Weekly periodic profiles provide a suitable database for seasonal characterization of the evolution of stratospheric ozone, especially valuable during winter time when satellites and ground-based instruments based on solar radiation are lacking. The work is focused on ozone loss rate variability (August–Octobe

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Chiang, Te-Kuang, and Juin Liou. "An analytical subthreshold current/swing model for junctionless cylindrical nanowire FETs (JLCNFETs)." Facta universitatis - series: Electronics and Energetics 26, no. 3 (2013): 157–73. http://dx.doi.org/10.2298/fuee1303157c.

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Based on the parabolic potential approach (PPA), scaling theory, and drift-diffusion approach (DDA) with effective band gap widening (BGW), we propose an analytical subthreshold current/swing model for junctionless (JL) cylindrical nanowire FETs (JLCNFETs). The work indicates that the electron density of Qm that is induced by the current factor b, minimum central potential Fc, min and equivalent quantum potential FQM is used to determine the subthreshold current/swing for JLCNFET. Unlike the junction-based (JB) cylindrical nanowire FETs (JBCNFETs), the subthreshold current for JLCNFET is not l

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Shifaat, Ur Rehman. "Optimization of off Grid Solar-Gas Generator Hybrid Power System for Rural Area of District Karak, Pakistan." International Journal of Engineering Works (ISSN: 2409-2770) 06, no. 03 (2019): 106–12. https://doi.org/10.5281/zenodo.2611887.

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The environmental impact of using conventional thermal energy sources for generating electricity and fossil fuel’s depletion fear are two major factor pushing world towards alternative energy resources. Pakistan is blessed with high potential of solar energy but hight initial cost and unpredictable nature of solar energy makes it uneconomical. Because of the shortfall and due to the bad geographical location, most of the rural areas in Pakistan have no access to central grid.Although some of the remote community is served by the local fuel generator for just a couple of hour at night, bu

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Alfiansyah, Ridwan, and Jojo Sumarjo. "Design of Savonius Double-Stage Wind Turbine, Capacity 300W." JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) 7, no. 1 (2023): 11–26. http://dx.doi.org/10.21070/jeeeu.v7i1.1638.

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The use of fossil energy sources is increasing along with the increasing need to make reserves of fossil energy sources dwindling. Without the discovery of new reserves, oil in Indonesia will run out in the next nine years, natural gas will run out in 22 years, and coal will run out in 65 years. According to ESDM data, with current technology, the electricity potential from renewable energy reaches 432 GW, or 7-8 times the current total installed generating capacity. Wind energy (wind) is one of the renewable energy potentials, and the most widely available among all energy sources. Therefore,

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Çetinkaya, H. G., D. E. Yıldız, and Ş. Altındal. "On the negative capacitance behavior in the forward bias of Au/n–4H–SiC (MS) and comparison between MS and Au/TiO2/n–4H–SiC (MIS) type diodes both in dark and under 200 W illumination intensity." International Journal of Modern Physics B 29, no. 01 (2014): 1450237. http://dx.doi.org/10.1142/s0217979214502373.

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In order to see the effect of interfacial layer on electrical characteristics both Au /n–4 H – SiC (MS) and Au/TiO 2/n–4 H – SiC (MIS) type Schottky barrier diodes (SBDs) were fabricated and their main electrical parameters were investigated by using the forward and reverse bias current-voltage (I–V), capacitance/conductance-voltage (C/G–V) measurements at room temperature. The ideality factor (n), series and shunt resistances (Rs, Rsh), barrier height (BH), depletion layer width (WD) and the concentration of donor atoms (ND) were obtained before and after illumination. The energy density dist

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Kondrat, R. M., O. R. Kondrat, and L. I. Haidarova. "Influence of the depth of gas-lift gas injection into tubing and its consumptions on the flow rate of a water-cut gas well." Prospecting and Development of Oil and Gas Fields, no. 3(80) (September 30, 2021): 19–25. http://dx.doi.org/10.31471/1993-9973-2021-3(80)-19-25.

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The features of the development of gas deposits in the water drive and watering of wells are characterized. The sequence of application of various methods of operation of water-cut gas wells is considered, depending on the degree of depletion of the gas reservoir and the water factor. The expediency and conditions for the use of the gas-lift method for the operation of water-cut gas wells have been substantiated. Using the calculation method proposed by the authors, studies of the effect on the flow rate of gas that flows from the reservoir and the bottomhole pressure of the gas-lift gas flow

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Ali, Atif, Theodore W. Koch, Timothy A. Volk, et al. "The Environmental Life Cycle Assessment of Electricity Production in New York State from Distributed Solar Photovoltaic Systems." Energies 15, no. 19 (2022): 7278. http://dx.doi.org/10.3390/en15197278.

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New York State’s (NYS) Climate Leadership and Community Protection Act (CLCPA) requires that 100% of the state’s electricity supply be greenhouse gas emissions-free by 2040 and that 6000 megawatts (MW) of solar energy must be installed in NYS by 2025. This study aims to evaluate the environmental impact of electricity generation from New York State distributed solar photovoltaic systems. This cradle-to-grave life cycle assessment (LCA) follows the International Standardization Organization (ISO) framework for LCA, including the goal and scope definition, inventory analysis, impact assessment,

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Okafor, V. C., N. C. Ezeanya, G. I. Nwandikom, and N.A.A. Okereke. "Energy saving potential, environmental and economic importance of evaporative cooling system: A review." European Journal of Advances in Engineering and Technology 6, no. 3 (2019): 34–45. https://doi.org/10.5281/zenodo.10687395.

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<strong>ABSTRACT</strong> Energy consumption all over the world is increasing rapidly and one factor driving energy cost in buildings is peak electricity demand, much of which comes from cooling. With the rise in living standards, air-conditioning system has become more popular and even a necessity in life to create comfortable environment. Air-conditioning plays an essential role in ensuring occupants thermal comfort, vapour compression refrigeration-based air conditioners are being used for comfort cooling in residences, offices and commercial buildings throughout the world. These systems co

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Gonet, Andrzej. "Optimization of a Directional Borehole Trajectory as the Criterion of Minimum Cost of Performance / Optymalizacja Trajektorii Otworu Kierunkowego Dla Kryterium Minimalizacji Kosztu Jego Wykonania." Archives of Mining Sciences 57, no. 4 (2012): 901–10. http://dx.doi.org/10.2478/v10267-012-0059-5.

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Abstract New drilling technical and technological solutions enhance the development of directional drilling, enabling better control of direction of drilling and real-time 3D information about the position of the bit in the borehole rendered by the control and measurement apparatuses. The 2D and 3D method of designing the trajectory of a borehole axis has been modified in this paper. In both cases the minimum cost of drilling of a borehole in an interval from the beginning of its deflecting (KOP) up to the ultimate destination point was assumed to be the optimization criterion. Another assumpt

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Osepian, A., S. Kirkwood, and P. Dalin. "The influence of ozone concentration on the lower ionosphere – modelling and measurements during the 29–30 October 2003 solar proton event." Annales Geophysicae 27, no. 2 (2009): 577–89. http://dx.doi.org/10.5194/angeo-27-577-2009.

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Abstract. A numerical model of D-region ion chemistry is used to study the influence of the ozone concentration in the mesosphere on ion-composition and electron density during solar proton events (SPE). We find a strong sensitivity in the lower part of the D-region, where negative ions play a major role in the ionization balance. We have chosen the strong SPE on 29–30 October 2003 when very intense proton fluxes with a hard energetic spectrum were observed. Deep penetration into the atmosphere by the proton fluxes and strong ionisation allows us to use measurements of electron density, made b

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Syah, Rahmad, Seyed Mehdi Alizadeh, Karina Shamilyevna Nurgalieva, et al. "A Laboratory Approach to Measure Enhanced Gas Recovery from a Tight Gas Reservoir during Supercritical Carbon Dioxide Injection." Sustainability 13, no. 21 (2021): 11606. http://dx.doi.org/10.3390/su132111606.

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Supercritical carbon dioxide injection in tight reservoirs is an efficient and prominent enhanced gas recovery method, as it can be more mobilized in low-permeable reservoirs due to its molecular size. This paper aimed to perform a set of laboratory experiments to evaluate the impacts of permeability and water saturation on enhanced gas recovery, carbon dioxide storage capacity, and carbon dioxide content during supercritical carbon dioxide injection. It is observed that supercritical carbon dioxide provides a higher gas recovery increase after the gas depletion drive mechanism is carried out

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Li, Yucheng, Chuanyan Zhao, Xingjie Ma, Yunlong Pei, Weili Liu, and Liang Gao. "Impact of serum phosphate levels during CRRT on extubation failure and hospital mortality in mechanically ventilated ICU patients—A study based on the MIMIC-IV database." PLOS One 20, no. 6 (2025): e0323939. https://doi.org/10.1371/journal.pone.0323939.

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Background Electrolyte imbalances, particularly phosphate depletion, are prevalent yet often underestimated complications in the Intensive Care Unit (ICU), notably among patients undergoing Continuous Renal Replacement Therapy (CRRT). Therefore, this study aims to examine the impact of serum phosphate levels during CRRT on the incidence of extubation failure and hospital mortality in mechanically ventilated patients. Methods Patients subjected to both CRRT and mechanical ventilation were extracted from the MIMIC-IV database. Cox regression analysis was employed to identify the potential risk f

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Horn, H., and D. Uhlmann. "Competitive growth of blue-greens and diatoms (fragilaria) in the saidenbach reservoir, saxony." Water Science and Technology 32, no. 4 (1995): 77–88. http://dx.doi.org/10.2166/wst.1995.0168.

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Since 1975, different patterns of the growth of Fragilaria and Cyanobacteria in the mid or late summer have been observed in the Saidenbach Reservoir. In most of the years, there was a mutual exclusion of mass growths of these two groups. High yields of Fragilaria caused low yields of blue-greens and vice versa. In the first years, Fragilaria was always the first to achieve a mass growth, followed by the Cyanobacteria. Then, in the last years, the blue-greens were succeeded by Fragilaria. Only in some years, there was a large and simultaneous growth of both groups. It has been shown, that the

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Soedarsono, Johny, Arie Wijaya, Taufik Aditiyawarman, et al. "Development of risk-based inspection of 28-years-old subsea sales gas pipelines to support the energy demand." Eastern-European Journal of Enterprise Technologies 2, no. 3 (122) (2023): 17–27. http://dx.doi.org/10.15587/1729-4061.2023.277256.

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In the oil and gas industry, maintaining the integrity of production equipment is critical to ensuring the industry’s sustainability. Failure to maintain the integrity of production equipment can result in financial losses for the business. The management of production equipment nearing the end of its design life faces an increasing cost of Inspection, Maintenance, and Repair (IMR). As a result, a strategy to improve the efficiency of IMR is essential. Recent IMR management practices include predictive Risk-Based Inspection (RBI), which is more efficient than Time-Based Inspection (TBI). The r

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Gormley, Michael, David Kelly, David Campbell, Yunpeng Xue, and Colin Stewart. "Building Drainage System Design for Tall Buildings: Current Limitations and Public Health Implications." Buildings 11, no. 2 (2021): 70. http://dx.doi.org/10.3390/buildings11020070.

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National design guides provide essential guidance for the design of building drainage systems, which primarily ensure the basic objectives of preventing odor ingress and cross-transmission of disease through water-trap seal retention. Current building drainage system design guides only extend to buildings of 30 floors, while modern tall buildings frequently extend to over 100 floors, exceeding the predictive capability of current design guides in terms of operating system conditions. However, the same design guides are being used for tall buildings as would be used for low-rise buildings. A co

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Johny, Soedarsono, Wijaya Arie, Aditiyawarman Taufik, et al. "Development of risk-based inspection of 28-years-old subsea sales gas pipelines to support the energy demand." Eastern-European Journal of Enterprise Technologies 2, no. 3(122) (2023): 17–27. https://doi.org/10.15587/1729-4061.2023.277256.

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In the oil and gas industry, maintaining the integrity of production equipment is critical to ensuring the industry’s sustainability. Failure to maintain the integrity of production equipment can result in financial losses for the business. The management of production equipment nearing the end of its design life faces an increasing cost of Inspection, Maintenance, and Repair (IMR). As a result, a strategy to improve the efficiency of IMR is essential. Recent IMR management practices include predictive Risk-Based Inspection (RBI), which is more efficient than Time-Based Inspection (TBI).

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Sariyev, Farrukh H. "Geochemistry and Petrogenesis of Picrites of the Lesser Caucasus and Talysh zone." Journal of Geology, Geography and Geoecology 34, no. 1 (2025): 196–207. https://doi.org/10.15421/112518.

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The analysis of the results obtained during the research on the regularity of alterations in the petrochemical and geochemical composition of picrites of the Lesser Caucasus and Talysh zone shows that the magmatic melts underwent a fractional crystallization process in the intrusive chamber. As a result, lutetium prevails insignificantly among the heavy rare earth elements in the melt. The moderately alkaline picrites of the Khojavand and Talysh zones of the Lesser Caucasus are noticeably enriched in light REEs and depleted in heavy REE. Evaluating the role of the melting fraction of the upper

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Silva, Everton Matheus, Renan Trevisoli, and Rodrigo Trevisoli Doria. "Impact of the Drain Voltage on the Extraction of Effective Channel Length in Junctionless Nanowires through Subthreshold Swing." ECS Meeting Abstracts MA2025-01, no. 36 (2025): 1709. https://doi.org/10.1149/ma2025-01361709mtgabs.

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The advance of technology demands an extreme miniaturization of electronic devices, reaching prohibitive levels from the point of view of the short channel effects (SCEs) as well as manufacturers' limitations. One important cumbersome task in ultimate devices consists of the formation of the source and drain regions that demand the variation of doping types and concentrations in several orders of magnitude in very short dimensions. Some techniques are proposed to overcome these unwanted effects, such as the introduction of multi-gate structures as well as the use of SOI technology that isolate

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Lauther, Valentin, Bärbel Vogel, Johannes Wintel, et al. "In situ observations of CH<sub>2</sub>Cl<sub>2</sub> and CHCl<sub>3</sub> show efficient transport pathways for very short-lived species into the lower stratosphere via the Asian and the North American summer monsoon." Atmospheric Chemistry and Physics 22, no. 3 (2022): 2049–77. http://dx.doi.org/10.5194/acp-22-2049-2022.

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Abstract. Efficient transport pathways for ozone-depleting very short-lived substances (VSLSs) from their source regions into the stratosphere are a matter of current scientific debate; however they have yet to be fully identified on an observational basis. Understanding the increasing impact of chlorine-containing VSLSs (Cl-VSLSs) on stratospheric ozone depletion is important in order to validate and improve model simulations and future predictions. We report on a transport study using airborne in situ measurements of the Cl-VSLSs dichloromethane (CH2Cl2) and trichloromethane (chloroform, CHC

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Jiang, Yuehua, April Breyer, Laura Lien, Mark Blackstad, and Catherine Verfaillie. "Culture of Multipotent Adult Progenitor Cells (MAPCs)." Blood 104, no. 11 (2004): 2329. http://dx.doi.org/10.1182/blood.v104.11.2329.2329.

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Abstract We have previously described the isolation of MAPCs, from human, mouse and rat bone marrow. MAPCs can differentiate into most mesodermal cell types as well as cells with neuroectodermal and endodermal features. However, culture of MAPCs remains laborious and difficult. To address the difficulties in MAPC culture initiation and maintenance, we performed multi-parameter analysis of different steps along the way. First, we evaluated whether collection of bone marrow influences isolation. We found that cells that initiate MAPC cultures appear to be present in higher frequency near growth

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Montero, Aldemar, Bipin N. Savani, Stephan Mielke, Scott R. Solomon, Richard Childs, and A. John Barrett. "T-Cell Depleted PBSCT Mitigates Acute GVHD, but Preserves Protective Chronic GVHD. Long Term Follow up of 138 Patients." Blood 106, no. 11 (2005): 140. http://dx.doi.org/10.1182/blood.v106.11.140.140.

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Abstract Between 1997 and 2004, 138 patients with hematological malignancies had an HLA-identical sibling peripheral blood stem cell transplant (PBSCT). Preparative regimen was TBI (12–13.6Gy), cyclophosphamide 120mg/kg +/− fludarabine 125mg/m2. T-cell dose was adjusted to 0.2-1 x 105 CD3+ cells/kg. CD34 dose was 2.7 – 15.9 x 106/kg (median 5.9). Patients without ≥ grade 2 acute GVHD received 1 or 2 donor lymphocyte infusions (DLI) of 107 CD3+ cells/kg between days 45 and 100. For GVHD prophylaxis, all patients received cyclosporine (CSA) following the DLI for a minimum of 6 months. In additio

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Sheweita, S. A., H. Baghdadi, and A. R. Allam. "Role of Genetic Changes in the Progression of Cardiovascular Diseases." International Journal of Biomedical Science 7, no. 4 (2011): 238–48. http://dx.doi.org/10.59566/ijbs.2011.7238.

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This review aims to investigate the role of genetic changes in the development of cardiovascular diseases [CVD]. Oxidation of Low density Lipoprotein (LDL) and mutations in LDLreceptors gene are a trigger for numerous of atherogenic events. Also, endothelial nitric oxide synthase (eNOS) plays an important role in vasodilatation of blood vessels through synthesis of nitric oxide.Three single base pair changes, 786T/C, 922A/G, and 1468T/A, have been identified in the promoter region of the eNOS gene and are associated with coronary spasm. Moreover, two distinct variable nucleotide tandem repeats

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Ruistuen, H., L. W. Teufel, and D. Rhett. "Influence of Reservoir Stress Path on Deformation and Permeability of Weakly Cemented Sandstone Reservoirs." SPE Reservoir Evaluation & Engineering 2, no. 03 (1999): 266–72. http://dx.doi.org/10.2118/56989-pa.

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Summary The influence of production-induced changes in reservoir pore pressure on compressibility and permeability of weakly cemented sandstones has been analyzed. Laboratory experiments simulating reservoir depletion have been conducted over a range of stress paths that a reservoir may follow. The results suggest that compressibility of weakly cemented sandstones is stress path dependent. Compressibility measured under uniaxial strain conditions, or a stress path defined by a lower ratio of the rate at which the effective horizontal to effective vertical stress were increased than the one ass

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Cohen, S., J. Beebe, V. Chindalore, et al. "AB0511 A PHASE 1, RANDOMISED, DOUBLE-BLIND, PLACEBO-CONTROLLED, SINGLE- AND MULTIPLE-DOSE ESCALATION STUDY TO EVALUATE THE SAFETY, PHARMACOKINETICS AND PHARMACODYNAMICS OF PF-06835375 IN PATIENTS WITH SEROPOSITIVE SYSTEMIC LUPUS ERYTHEMATOSUS OR RHEUMATOID ARTHRITIS." Annals of the Rheumatic Diseases 82, Suppl 1 (2023): 1450.2–1450. http://dx.doi.org/10.1136/annrheumdis-2023-eular.95.

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BackgroundPF-06835375 is a humanised, afucosyl IgG1 antibody selective against C-X-C chemokine receptor type 5 (CXCR5), a receptor expressed on B cells, bona fide T follicular helper (Tfh) cells and circulating T follicular helper-like (cTfh) cells. PF-06835375 is in development for autoimmune diseases through depletion of CXCR5-positive B and Tfh cells and antagonism of C-X-C motif chemokine ligand 13-dependent signalling.ObjectivesThis first-in-human study evaluated the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of PF‑06835375 in patients with seropositive systemic

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Harp, Dylan R., Vitaly Zlotnik, Charles J. Abolt, et al. "New insights into the drainage of inundated ice-wedge polygons using fundamental hydrologic principles." Cryosphere 15, no. 8 (2021): 4005–29. http://dx.doi.org/10.5194/tc-15-4005-2021.

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Abstract. The pathways and timing of drainage from the inundated centers of ice-wedge polygons in a warming climate have important implications for carbon flushing, advective heat transport, and transitions from methane to carbon dioxide dominated emissions. Here, we expand on previous research using a recently developed analytical model of drainage from a low-centered polygon. Specifically, we perform (1) a calibration to field data identifying necessary model refinements and (2) a rigorous model sensitivity analysis that expands on previously published indications of polygon drainage charact

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Edwards, Ryan B., David M. Lucas, Gerard Lozanski, et al. "Silvestrol, a Rocaglate Derivative from the Indonesian Plant Aglaia foveolata, Has Significant Bcl-2- and p53-Independent Anti-Tumor Activity against Chronic Lymphocytic Leukemia Cells." Blood 108, no. 11 (2006): 2600. http://dx.doi.org/10.1182/blood.v108.11.2600.2600.

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Abstract Chronic Lymphocytic Leukemia (CLL) is an incurable disease with limited therapeutic options. The development of drug resistance through multiple pathways, especially in advanced disease, further restricts these options. Thus, new agents with unique mechanisms of action are crucial to make an impact on patient survival. Silvestrol, a rocaglate derivative with an unusual dioxanyloxy unit, was isolated from Aglaia species using bioassay-guided fractionation. Silvestrol exhibited potent in vitro cytotoxic activity against several tumor cell lines. Silvestrol was further evaluated in vivo

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Rawstron, Andy C., Alex Smith, Ruth Mary de Tute, Dan Painter, Eve Roman, and Roger G. Owen. "Validation of Plasma Cell Immunophenotype As a Biomarker to Identify High-Risk Smoldering Myeloma." Blood 128, no. 22 (2016): 4451. http://dx.doi.org/10.1182/blood.v128.22.4451.4451.

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Abstract Introduction Smoldering multiple myeloma (SMM) is an asymptomatic clonal plasma cell disorder. In the last few years several prognostic factors have been shown to identify SMM patients with very high risk of disease progression. Identification of high-risk SMM has assumed greater significance because trials have shown that early therapy can be potentially beneficial to patients. Many risk factors are routinely evaluated in the vast majority of diagnostic centres, such as serum M protein ≥30g/L &/or IgA isotype, immunoparesis, serum involved/uninvolved FLC ratio ≥8 but <100. It

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Zoennchen, J. H., U. Nass, and H. J. Fahr. "Exospheric hydrogen density distributions for equinox and summer solstice observed with TWINS1/2 during solar minimum." Annales Geophysicae 31, no. 3 (2013): 513–27. http://dx.doi.org/10.5194/angeo-31-513-2013.

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Abstract. The Lyman-α Detectors (LAD) on board the two TWINS 1/2-satellites allow for the simultaneous stereo imaging of the resonant emission glow of the H-geocorona from very different orbital positions. Terrestrial exospheric atomic hydrogen (H) resonantly scatters solar Lyman-α (121.567 nm) radiation. During the past solar minimum, relevant solar parameters that influence these emissions were quite stable. Here, we use simultaneous LAD1/2-observations from TWINS1 and TWINS2 between June 2008 and June 2010 to study seasonal variations in the H-geocorona. Data are combined to produce two dat

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Clifton, Carey, Leigh Ann Vaughan, Catherine Lucid, et al. "Vaccinations Efficacy in Long Term Survivors After Allogeneic Stem Cell Transplantation: Implication of Repeat Vaccinations and Documenting Vaccination Efficacy." Blood 114, no. 22 (2009): 3330. http://dx.doi.org/10.1182/blood.v114.22.3330.3330.

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Abstract Abstract 3330 Poster Board III-218 Background With improvements in transplant techniques,more patients now survive free of disease for which they are transplanted. Vaccine preventable infections remain a significant cause of morbidity, re-hospitalization and mortality after successful allogeneic stem cell transplantation (allo-SCT). Although infections are highest in patients with chronic graft versus host disease (cGVHD), incidence in patients without cGVHD post- transplant is over 20 times that reported in general population. Current literature on vaccine efficacy following allo- SC

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Zheng, Yuhuan, Hongmei Luo, Dan Zhang, and Fangfang Wang. "Activated Leukocyte Cell Adhesion Molecule (ALCAM) Regulate Myeloma Cancer Stem Cell Mediated Myelomagenesis and Chemoresistance." Blood 132, Supplement 1 (2018): 3190. http://dx.doi.org/10.1182/blood-2018-99-111740.

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Abstract Introduction Multiple myeloma (MM) is an incurable plasma cell cancer. People introduced the concept of cancer stem cells (CSCs) in MM, known as MM-CSCs, to characterize a small population of malignant cells with distinguishable activities of self-renewal and differentiation into regular MM cells. In this study, we showed that activated leukocyte cell adhesion molecule (ALCAM) interacted with epidermal growth factor receptor (EGFR). ALCAM-EGFR axis regulated MM-CSC mediated myelomagenesis and chemoresistance. Methods MM-CSCs in MM cell lines and primary MM cells were identified by Hoe

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Nugymanov, Nurakhmet, Baglan Muratbek, and Xianhui Geng. "Influence of Biophysical Factors on the Adoption of Soil Conserving Practices among Wheat Farmers in Kazakhstan." International Journal of Research and Innovation in Social Science VIII, no. VIII (2024): 1983–95. http://dx.doi.org/10.47772/ijriss.2024.8080145.

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The global agricultural sector faces significant challenges, including land degradation and soil fertility depletion, which impact growth and productivity. This study explores the influence of biophysical factors on the adoption of Soil Conserving Practices (SCPs) among 530 wheat farm households in Kazakhstan. Utilizing a multivariate probit model and ordered probit regression, the study assesses the determinants and intensity of SCP adoption, revealing an overall adoption rate of 73%. The findings indicate that most biophysical characteristics are not statistically significant in influencing

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Somasundaran, P., and H. Shafick Hanna. "Adsorption/Desorption of Sulfonate by Reservoir Rock Minerals in Solutions of Varying Sulfonate Concentrations." Society of Petroleum Engineers Journal 25, no. 03 (1985): 343–50. http://dx.doi.org/10.2118/10603-pa.

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Abstract In micellar flooding, reservoir rocks are exposed to surfactant solutions of varying concentrations as the surfactant slug advances through the reservoir. Therefore, the attachment and detachment of sulfonates with rocks that are already exposed to surfactant solutions of higher or lower concentrations is of major interest. In this study, the abstraction behavior of purified Na-dodecylbenzenesulfonate on Na-kaolinite by stepwise increase in surfactant concentration is determined. Deabstraction* occurring after reductions in surfactant concentrations at various stages also is determine

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Kirgizov, Alifbek, Sherkhon Sultonov, Khislatbek Usmonov, and Mirzosharif Rajabov. "Factors Influencing the Determination of the Gyrosures Potential of Small Rivers." E3S Web of Conferences 264 (2021): 03077. http://dx.doi.org/10.1051/e3sconf/202126403077.

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The article examines the main trends in the use of renewable energy sources in the world. The article examines the main trends in the use of renewable energy sources in the world. The use of renewable sources is associated with the depletion of reserves of carbonaceous minerals and a decrease in greenhouse gas emissions into the atmosphere. The article presents the main, according to the authors, reasons for the incorrect determination of the potential of small hydro resources in the Republic of Tajikistan. In recent years, many small hydroelectric power plants have been built, which are ineff

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Resplandy, L., M. Lévy, L. Bopp, et al. "Controlling factors of the OMZ in the Arabian Sea." Biogeosciences Discussions 9, no. 5 (2012): 5509–50. http://dx.doi.org/10.5194/bgd-9-5509-2012.

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Abstract. In-situ observations indicate that the Arabian Sea oxygen minimum zone (OMZ) is only weakly influenced by the strong seasonal cycle of ocean dynamic and biogeochemistry forced by the asian monsoon system and it is spatially decorrelated from the coastal upwelling systems where the biological production is the strongest. In this study we examine the factors controlling the seasonality and the spatial distribution of the OMZ in the Arabian Sea using a coupled bio-physical model. We find that the oxygen concentration in the OMZ displays a seasonal cycle with an amplitude of 5–15 % of th

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Onyeka, J. O. A., and P. F. L. Boreham. "Population studies, physiological state and mortality factors of overwintering adult populations of females of Culex pipiens L. (Diptera: Culicidae)." Bulletin of Entomological Research 77, no. 1 (1987): 99–111. http://dx.doi.org/10.1017/s0007485300011585.

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AbstractThe biology of overwintering populations of adults of Culex pipiens L. was studied between October 1977 and April 1980 in southern England. Data obtained from population studies showed that there was a rapid build-up at the beginning of hibernation in August, reaching a peak in late October-early November each year and gradually decreasing from December. Extensive movement both in and out and within the hibernation site occurred, with many individuals changing their locations or hibernacula during the course of hibernation. Studies on induced feeding showed that in the early months of

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Soladoye, Olayemi, and Olusegun Adepoju. "Demand for Public Water in Lagos, Nigeria: Study of Patterns and Factors with implications for Sustainable Development." Journal of Geography, Environment and Earth Science International 29, no. 1 (2025): 106–27. https://doi.org/10.9734/jgeesi/2025/v29i1859.

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The growing urban population in developing countries has worsened the concerns surrounding issues on equal water availability and sustainable management. This study investigates household water demand patterns in Lagos, Nigeria, focusing on the socio-economic and spatial inequalities that influence water usage. Using survey data from 294 households, the study adopted Geographic Information Systems (GIS) for the spatial analysis and Factorial ANOVA to look into the impact of socio-economic characteristics, namely income, gender, education, and occupation, on volumetric water consumption. The sp

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M, S. N. Chathurvedhi, Kumar Mohanty Subrat, Ch Dharaneesh, Sekhar Mohanty Sudhansu, Chandra Tudu Harish, and M. T. Varsha. "Study on Factors Affecting Successful Outcome of Ultrasound Guided Hydrostatic Reduction of Ileocolic Intussusception in Children." International Journal of Pharmaceutical and Clinical Research 16, no. 12 (2024): 425–31. https://doi.org/10.5281/zenodo.14592703.

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<strong>Objectives: </strong>The present study was to determine what all factors are responsible for favourable outcome of USG guided hydrostatic reduction of ileocolic intussusception. <strong>Methods: </strong>Pre-warmed normal saline (warmed to body temperature, 36.5 – 37.5°C) was introduced via catheter into the rectum and proximal colon by hanging the bottle 120 cms above table height and allowing free flow under gravity. During the procedure, the retrograde movement of saline and the regress of intussusceptum were continuously monitored under real time ultrasound

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Affam, M., and M. Balegha. "Geotechnical Modeling of Optimal Pit: West Limb of the Tarkwaian of Ghana." Ghana Mining Journal 22, no. 1 (2022): 1–8. http://dx.doi.org/10.4314/gm.v22i1.1.

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Tarkwa Gold Mine is depleting its reserves to the east of the mine, on the Tarkwaian paleo placer deposit. It has, as a result embarked on vigorous near mine exploratory works to the west of the concession for reserve generation. Results indicate gold mineralisation of economic interest. The Mine seeks to provide optimal slope design that would satisfy shareholders and employees in the context of safety, ore recovery, and financial returns. Rock Mass Rating (RMR) and subsequent adjustment to obtain the Mining Rock Mass Rating (MRMR) was done for rock characterisation. The ratings for the vario

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