Thematische Bibliographien / Replacement source

Inhaltsverzeichnis

  1. Zeitschriftenartikel
  2. Dissertationen
  3. Bücher
  4. Buchteile
  5. Konferenzberichte
  6. Berichte der Organisationen

Auswahl der wissenschaftlichen Literatur zum Thema „Replacement source“

Autor: Grafiati
Veröffentlicht am 4. Juni 2021
Zuletzt aktualisiert am 7. Februar 2022

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Zeitschriftenartikel zum Thema "Replacement source"

1

Zapotocky, Theresa Lynn. „Tea as source of potassium replacement?“ Journal of Wound, Ostomy and Continence Nursing 15, Nr. 1 (Januar 1988): 50. http://dx.doi.org/10.1097/00152192-198801000-00039.

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2

Holmes, Kim D., und Paula R. Notarangelo. „Tea as source of potassium replacement?“ Journal of Wound, Ostomy and Continence Nursing 15, Nr. 1 (Januar 1988): 50. http://dx.doi.org/10.1097/00152192-198801000-00040.

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3

Rooyackers, Rita, Anne Vandooren, Anne S. Verhulst, Amey Mahadev Walke, Eddy Simoen, Katia Devriendt, Sabrina Lo-Corotondo et al. „Ge-Source Vertical Tunnel FETs Using a Novel Replacement-Source Integration Scheme“. IEEE Transactions on Electron Devices 61, Nr. 12 (Dezember 2014): 4032–39. http://dx.doi.org/10.1109/ted.2014.2365142.

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4

Aslani, Alireza, Samaneh Akbari und Sanaz Tabasi. „The Robustness of Natural Gas Energy Supply“. International Journal of System Dynamics Applications 7, Nr. 3 (Juli 2018): 57–71. http://dx.doi.org/10.4018/ijsda.2018070103.

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This article describes how affordability, acceptability, and reliability of energy supply are three important concerns for government. Due to the crude oil restrictions and its environmental impacts, a replacement of other energy sources has become more important in recent years. Natural gas is one of the replacements as a cleaner source with a more suitable calorific value than oil in comparison with other renewable energy sources. Therefore, utilization of natural gas as the main source of replacement strategies in the energy system has accelerated at the national level. However, the natural gas energy system is a complex system including different influencing and influenced variables that affect social and economic factors. This research has developed a system dynamics model to understand the complexity of the natural gas energy systems at the macro-level. The model shows the effective sub-systems of energy system with their related variables. It helps to predict the effective factors of an energy supply system based on statistics approaches. After that, three scenarios are defined based on expert opinions and the behaviors of the sub-systems in each scenario is analyzed. The approach also helps to understand unknown consequences of a decision or scenario in the energy system.
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Snell, D., J. Dunn, K. Sinnott, C. Hsieh, G. Jong und G. Hooper. „Joint replacement rehabilitation and the role of funding source“. Journal of Rehabilitation Medicine 51, Nr. 10 (2019): 770–78. http://dx.doi.org/10.2340/16501977-2600.

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6

Takeuchi, Kosuke, Ryo Kunimoto und Jürgen Bajorath. „R-group replacement database for medicinal chemistry“. Future Science OA 7, Nr. 8 (September 2021): FSO742. http://dx.doi.org/10.2144/fsoa-2021-0062.

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Aim: Generation of an R-group replacement system for compound optimization in medicinal chemistry. Materials & methods: From bioactive compounds, analogue series (ASs) were systematically extracted and from these ASs, all R-groups were isolated and further analyzed. Exemplary results & data: From more than 17,000 ASs, more than 50,000 unique R-groups were isolated. For the 500 most frequently used R-groups, preferred replacements were identified and organized in hierarchies. All original data and an R-group replacement database are made available in an open access deposition. Limitations & next steps: The searchable database has no limitations and can easily be modified using the source data we provide. The next step will be applying this R-group resource in practical medicinal chemistry projects as decision support.
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7

Cooper, Joyce, Tarja Häkkinen, Sirje Vares, Jenni Jahn und Sakari Pulakka. „Combining Building Renovation and Ground Source Heat Pump Installations for the Reduction of Greenhouse Gas Emissions: A Case Study in Vaasa Finland“. Journal of Green Building 4, Nr. 1 (01.02.2009): 146–68. http://dx.doi.org/10.3992/jgb.4.1.146.

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Given the growing interest in ground source heat pump and distributed heating installations in general for the reduction of greenhouse gas emissions, technology implementation planning can benefit from the simultaneous consideration of building renovations. Here, a method for identifying and evaluating scenarios based on cost and greenhouse gas emissions is presented. The method is demonstrated for a case study in Vaasa Finland. The case study considers the insulation of the walls, roof, and base floor and the replacement of windows based on 2003 and 2010 Finnish building codes simultaneously with the possible replacement of existing heat sources with ground source heat pumps. Estimates of changes in heat demand for consecutive renovations are combined with data on renovation, installation, heating costs, and life cycle greenhouse gas emissions data for the current and proposed heat sources. Preferred scenarios are identified and evaluated by building type, construction decade, and current heating source. The results are then placed within the contexts of the Vaasa building stock and policy theory.
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8

Morrow, Gael B., Molly S. A. Carlier, Sruti Dasgupta, Fiona B. Craigen, Nicola J. Mutch und Nicola Curry. „Fibrinogen Replacement Therapy for Traumatic Coagulopathy: Does the Fibrinogen Source Matter?“ International Journal of Molecular Sciences 22, Nr. 4 (22.02.2021): 2185. http://dx.doi.org/10.3390/ijms22042185.

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Fibrinogen is the first coagulation protein to reach critically low levels during traumatic haemorrhage. There have been no differential effects on clinical outcomes between the two main sources of fibrinogen replacement: cryoprecipitate and fibrinogen concentrate (Fg-C). However, the constituents of these sources are very different. The aim of this study was to determine whether these give rise to any differences in clot stability that may occur during trauma haemorrhage. Fibrinogen deficient plasma (FDP) was spiked with fibrinogen from cryoprecipitate or Fg-C. A panel of coagulation factors, rotational thromboelastography (ROTEM), thrombin generation (TG), clot lysis and confocal microscopy were performed to measure clot strength and stability. Increasing concentrations of fibrinogen from Fg-C or cryoprecipitate added to FDP strongly correlated with Clauss fibrinogen, demonstrating good recovery of fibrinogen (r2 = 0.99). A marked increase in Factor VIII, XIII and α2-antiplasmin was observed in cryoprecipitate (p < 0.05). Increasing concentrations of fibrinogen from both sources were strongly correlated with ROTEM parameters (r2 = 0.78–0.98). Cryoprecipitate therapy improved TG potential, increased fibrinolytic resistance and formed more homogeneous fibrin clots, compared to Fg-C. In summary, our data indicate that cryoprecipitate may be a superior source of fibrinogen to successfully control bleeding in trauma coagulopathy. However, these different products require evaluation in a clinical setting.
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Prevost, Dave, Keerthi Jayamanna, Linda Graham, Sam Varah und Cornelia Hoehr. „New Ion Source Filament for Prolonged Ion Source Operation on A Medical Cyclotron“. Instruments 3, Nr. 1 (16.01.2019): 5. http://dx.doi.org/10.3390/instruments3010005.

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Cyclotrons are an important tool for accelerator sciences including the production of medical isotopes for imaging and therapy. For their successful and cost-efficient operation, the planned and unplanned down time of the cyclotron needs to be kept at a minimum without compromising reliability. One of the often required maintenance activities is the replacement of the filament in the ion source. Here, we are reporting on a new ion source filament tested on a medical cyclotron and its prolonging effect on the ion source operation.
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Sudakaran, Sailendharan, Christian Kost und Martin Kaltenpoth. „Symbiont Acquisition and Replacement as a Source of Ecological Innovation“. Trends in Microbiology 25, Nr. 5 (Mai 2017): 375–90. http://dx.doi.org/10.1016/j.tim.2017.02.014.

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Dissertationen zum Thema "Replacement source"

1

Mowrey, Coleen Marie. „Influence of Feeding Pooled Colostrum or Colostrum Replacement on IgG Levels and Evaluation of Animal Plasma as a Milk Replacer Protein Source“. Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/32560.

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Newborn Holstein (n = 48) and Jersey (n = 30) calves were studied to compare the absorption of immunoglobulin G (IgG) from maternal colostrum (n = 39) or a colostrum replacement product derived from bovine serum (n = 39). Calves were also fed milk replacer with (n = 38) or without (n = 40) animal plasma to 29 d of age to determine the effect of plasma protein on IgG status, health, and growth. Colostrum or colostrum replacement was fed at 1.05 and 13.5 h of age and provided a total of 250, 180, 249, or 186 g IgG for Holsteins and Jerseys fed replacement or colostrum, respectively. Milk replacer (12.5% DM) was fed at 31% of metabolic birth weight (2 feedings/d). Jugular blood was sampled at 0 h, 24 h, and weekly to determine plasma IgG. At blood collection calves were weighed and measured to determine growth. Health scores, fecal scores, and grain intake were measured daily. Mean plasma IgG at 24 h did not differ between calves fed colostrum (13.78 ± 0.39 g/L) and replacement (13.96 ± 0.38 g/L). Average daily gain, wither height, hip height, body length, heart girth, health, and incidence of diarrhea were not different between treatment groups. Plasma IgG and performance were not affected by addition of animal plasma to milk replacer. The colostrum substitute successfully replaced colostrum as the source of IgG for newborn calves. Animal plasma was an acceptable source of protein, but did not enhance growth or immunity.
Master of Science
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2

Kaymaz, Sidar Diri Alaattin. „Use of information technology tools in source selection decision making a study on USAF's KC-X Tanker Replacement Program /“. Monterey, Calif. : Naval Postgraduate School, 2008. http://handle.dtic.mil/100.2/ADA483510.

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"Submitted in partial fulfillment of the requirements for the degree of Master of Business Administration from the Naval Postgraduate School, June 2008."
Advisor(s): Heath, Susan K. ; Petross, Diana F. "June 2008." "MBA professional report"--Cover. Description based on title screen as viewed on August 8, 2008. Includes bibliographical references (p. 149-152). Also available in print.
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Kaymaz, Sidar, und Alaattin Diri. „Use of information technology tools in source selection decision making: a study on USAF's KC-X Tanker Replacement Program“. Thesis, Monterey, California. Naval Postgraduate School, 2008. http://hdl.handle.net/10945/10340.

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MBA Professional Report
Approved for public release; distribution is unlimited
The source selection phase in government acquisitions is so complicated in nature because it involves multicriteria decision making that is supposed to respond to various requirements and subjectivity is usually inevitable in this kind of a decision making process. The purpose of this project is to demonstrate how the USAF's current source selection method (color rating method) is incompetent in showing small differences between proposed products, how this inadequacy leads to subjective decisions, and that the use of information technology tools can augment objectivity in this process. In this study, USAF's KC-X Tanker Replacement Program has been selected as the program to be used to frame the research questions. Two models with two versions built on Microsoft Excel spreadsheets using publicly available KC-X program data are used to compare the USAF's color rating method and weighted sum method, which is a multi-criteria decision making tool. It is presented that if the USAF had used the weighted sum method as its evaluation method, the winner of the KC-X program could have been different. The findings prove that the color rating method is not capable of reflecting small differences and information technology tools can help decision makers choose the best value offeror with less subjectivity.
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Cervantes, Cevallos Carlos Ángel. „Replacement of fish meal by meal worm (Eisenia foetida) in the feed of broilers as an alternative source of protein“. BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/5346.

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This investigation was conducted in the rural community of Cuambo, located in the northeast of Imbabura province, in the Mira river basin of Salina parish, at 1530 meters above sea level and with an average temperature of 19 C. The principal objective of this investigation was to evaluate the effect of four levels of substitution of fish meal for earthworm meal in broiler chicken diets. The fieldwork occurred in two stages over the course of 20 months: A. Creation of the feed: This step lasted from the installation of an earthworm culturing area through the cultivation, harvest, and drying of the worms until obtaining the flour and then the feed with the respective formulas and acquisition of primary materials. B. Cultivation of broiler chickens: This was carried out in a community member's house adapted to function like a chicken coop that had been previously prepared to receive the chicks. The study lasted 7 weeks. A completely random design (CRD) was used with five treatments and five repetitions per treatment, with five chickens per experimental unit. ANOVA, Tukey analysis at 5%, and orthogonal polynomial analysis were used to evaluate the data. The factor under study was the percentage of earthworm flour in a basic diet. The treatments were as follows: T0: Control (Pronaca commercial feed) T1: 100% earthworm meal T2: 75% earthworm meal T3: 50% earthworm meal T4: 25% earthworm meal Analyzed variables: Weekly weight gain, Weekly food conversion, Accumulated food conversion, Total food consumption, Efficiency index, Yield, Organoleptic analysis, Economic analysis. From the results obtained, we conclude that treatment 0 (T0) is the best because it gave the best results in weight gain, food conversion, efficiency index, yield, and cost of production. In the organoleptic analysis T4 received the most points for appearance and flavor; T3 received the most for color, smell, and texture. The treatment with greatest acceptability was T4, with the most points. In production costs, the least expensive was T1, but it is not recommended for use because the chickens had poor results in the studied variables.
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Pine, Harvey J. Daniels William H. „Replacement of fish meal with poultry by-product meal as a protein source in sunshine bass, Morone chyrsops x Morone saxatilis, diets“. Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/PINE_HARVEY_41.pdf.

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Abbas, M. I. „Construction of duopigatron sputtering ion source, used in investigations of range profiles, trapping and replacement of low energy deuterium ions into different materials“. Thesis, University of Salford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374498.

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Blažek, Tomáš. „Návrh kabelové sítě 22 kV ve stávajícím areálu fakultní nemocnice“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219386.

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This thesis describes the reconstruction network 10 kV HV networks in a teaching hospital in the transition to a new 22 kV voltage level according to valid regulations. The paper describes the current state of technological equipment and its gradual replacement with new technology at 22 kV voltage level in each power units so as not to limit the operation of the hospital. For this purpose, the new backup system for rotating spare resources. The thesis deals with new input distribution, which will serve as a transfer point between the customer and distributor of electricity as well as advance the existing technological equipment.
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Gordana, Jovanović. „Uticaj traneksamične kiseline na krvarenje u perioperativnom periodu kod ugradnje totalneproteze kolena“. Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2014. http://www.cris.uns.ac.rs/record.jsf?recordId=87532&source=NDLTD&language=en.

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Uvod Napredak hirurških i anestezioloških tehnika učinio je hiruršku intervenciju ugradnje totalne proteze kolena uspešnom i bezbednom. Međutim, pošto spada u opsežne ortopedske intervencije, praćena je značajnim gubicima krvnog volumena, kao i značajnom potrošnjom krvi i krvnih derivata. Trendovi u savremenoj medicini idu u pravcu restrikcije upotrebe krvi i krvnih derivata i čine se veliki napori u istraživanju i razvijanju metoda i tehnika koje mogu biti alternative alogenoj transfuziji krvi. Traneksamična kiselina koja ima antifibrinolitičko dejstvo, može dovesti do značajnog smanjenja perioperativnog krvarenja. Ciljevi istraživanja su bili utvrđivanje uticaja traneksamične kiseline na perioperativno krvarenje kod operacija ugradnje totalne proteze kolena, kao i utvrđivanje postojanja uticaja traneksamične kiseline na perioperativnu upotrebu alogene krvi kod operaacija ugradnje totalne proteze kolena. Matrijal i metode u studiju je bilo uključeno 96 bolesnika oba pola, starijih od 18 godina, kojima je bila ugrađivana primarna elektivna totalna proteza kolena. Oni su bili podeljeni u dve grupe, 48 u ispitivanoj grupi kod kojih je primenjivana traneksamična kiselina i 48 bolesnika koji su bili kontrolna grupa. Svi bolesnici su bili u spinalnoj anesteziji i primenjivana je pneumatska poveska na ekstremitetu koji se operisao. Ispitivana grupa je dobijala traneksamičnu kiselinu u dva navrata u dozi od 15 mg /kg i 10 mg/kg u vidu kontinuirane i.v. infuzije u trajanju od 15 minuta. Prvo davanje leka je bilo neposredno nakon uvoda u anesteziju. Drugo davanje leka je bilo 15 minuta pre otpuštanja pneumatske poveske. Kontrolna grupa je dobijala istu količinu 0.9% fiziološkog rastvora koji je primenjivan na isti način. Intraoperativni gubitak krvi je beležen i meren kao gubitak u aspiratoru i gubitak na gazama. Postoperativn gubitak krvi se merio nakon 6, 12 sati i nakon 24 sata, kao gubitak na drenove Beležio se i broj primenjenih jedinica krvi i broj ukupno dobijenih mililitara krvi i ostalih krvnih produkata, kao i vreme njihove primene. Rezultati Postoji statistički značajna razlika u prosečnom intraoperativnom krvarenju između grupa (Z = -7,281; p = 000). Prosečno intraoperativno krvarenje u ispitivanoj grupi je bilo 100 ± 92,690 ml, a u kontrolnoj 447 ± 299,282 ml. U kontrolnoj grupi bolesnici imaju statistički značajno veće ukupno postoperativno krvarenje od bolesnika iz ispitivane grupe (T test, t=4,024, p<0,01) ( ispitivana grupa 309,78± 143,612 ml, kontrolna grupa 455,42 ± 201,177 ml). Razlika je bila statistički značajna nakon 6 sati (p < 001) i nakon 12 sati u korist ispitivane grupe (p<0,05). Postji statistički značajna razlika u ukupnom perioperativnom krvarenju među grupama i traneksamična kiselina je statistički značajno (p<0,000) smanjila ukupno krvarenje од 919,36 ml (95%IP 822,083-1016,640) na 405, 32 ml (95% IP 353, 407-457, 231). Ukupno perioperativno krvarenje je u proseku iznosilo 662, 34 ml i kretalo se u intervalu od 100 do 1700 ml. U ispitivanoj grupi je samo 5 (10,4%) ispitanika primilo transfuziju, dok je u kontrolnoj grupi 39 (81,3%), što je statistički značajna razlika (2=45,692; p=0,000). Prosečna količina date alogene krvi u ispitivanoj grupi je 33,33 ± 99,2 ml, dok je prosečna količina date alogene krvi u kontrolnoj grupi bila skoro deset puta veća i iznosila je 319,2 ± 230 ml, što je statistički značajno veće (Z = -6,625; p = 000). Postoperativne vrednosti hemoglobina, hematokrita i trombocita bile su statistički značajno veće u isptivanoj grupi. Bolesnici iz ispitivane grupe su statistički značajno ranije postoperativno uzimali prvi obrok, sedeli i ustajali od bolesnika u kontrolnoj grupi. Zaključci Iz dobijenih rezultata o intraoperativnom, postoperativnom i ukupnom perioperativnom krvarenju može se zaključiti da je traneksamična kiselina veoma efikasan lek i da statistički značajno smanjuje krvarenje vezano za ugradnju totalne proteze kolena i da smanjuje upotrebu transfuzije alogene krvi za 66,7%. Traneksamična kiselina je uticajem na smanjenje perioperativnog krvarenja dovela do očuvanja vrednosti hemoglobina, hematokrita i trombocita. Bolesnici koji su dobijali traneksamičnu kiselinu su takođe imali brži i kvalitetniji neposredni postoperativni oporavak.
Uvod Napredak hirurških i anestezioloških tehnika učinio je hiruršku intervenciju ugradnje totalne proteze kolena uspešnom i bezbednom. Međutim, pošto spada u opsežne ortopedske intervencije, praćena je značajnim gubicima krvnog volumena, kao i značajnom potrošnjom krvi i krvnih derivata. Trendovi u savremenoj medicini idu u pravcu restrikcije upotrebe krvi i krvnih derivata i čine se veliki napori u istraživanju i razvijanju metoda i tehnika koje mogu biti alternative alogenoj transfuziji krvi. Traneksamična kiselina koja ima antifibrinolitičko dejstvo, može dovesti do značajnog smanjenja perioperativnog krvarenja. Ciljevi istraživanja su bili utvrđivanje uticaja traneksamične kiseline na perioperativno krvarenje kod operacija ugradnje totalne proteze kolena, kao i utvrđivanje postojanja uticaja traneksamične kiseline na perioperativnu upotrebu alogene krvi kod operaacija ugradnje totalne proteze kolena. Matrijal i metode u studiju je bilo uključeno 96 bolesnika oba pola, starijih od 18 godina, kojima je bila ugrađivana primarna elektivna totalna proteza kolena. Oni su bili podeljeni u dve grupe, 48 u ispitivanoj grupi kod kojih je primenjivana traneksamična kiselina i 48 bolesnika koji su bili kontrolna grupa. Svi bolesnici su bili u spinalnoj anesteziji i primenjivana je pneumatska poveska na ekstremitetu koji se operisao. Ispitivana grupa je dobijala traneksamičnu kiselinu u dva navrata u dozi od 15 mg /kg i 10 mg/kg u vidu kontinuirane i.v. infuzije u trajanju od 15 minuta. Prvo davanje leka je bilo neposredno nakon uvoda u anesteziju. Drugo davanje leka je bilo 15 minuta pre otpuštanja pneumatske poveske. Kontrolna grupa je dobijala istu količinu 0.9% fiziološkog rastvora koji je primenjivan na isti način. Intraoperativni gubitak krvi je beležen i meren kao gubitak u aspiratoru i gubitak na gazama. Postoperativn gubitak krvi se merio nakon 6, 12 sati i nakon 24 sata, kao gubitak na drenove Beležio se i broj primenjenih jedinica krvi i broj ukupno dobijenih mililitara krvi i ostalih krvnih produkata, kao i vreme njihove primene. Rezultati Postoji statistički značajna razlika u prosečnom intraoperativnom krvarenju između grupa (Z = -7,281; p = 000). Prosečno intraoperativno krvarenje u ispitivanoj grupi je bilo 100 ± 92,690 ml, a u kontrolnoj 447 ± 299,282 ml. U kontrolnoj grupi bolesnici imaju statistički značajno veće ukupno postoperativno krvarenje od bolesnika iz ispitivane grupe (T test, t=4,024, p<0,01) ( ispitivana grupa 309,78± 143,612 ml, kontrolna grupa 455,42 ± 201,177 ml). Razlika je bila statistički značajna nakon 6 sati (p < 001) i nakon 12 sati u korist ispitivane grupe (p<0,05). Postji statistički značajna razlika u ukupnom perioperativnom krvarenju među grupama i traneksamična kiselina je statistički značajno (p<0,000) smanjila ukupno krvarenje od 919,36 ml (95%IP 822,083-1016,640) na 405, 32 ml (95% IP 353, 407-457, 231). Ukupno perioperativno krvarenje je u proseku iznosilo 662, 34 ml i kretalo se u intervalu od 100 do 1700 ml. U ispitivanoj grupi je samo 5 (10,4%) ispitanika primilo transfuziju, dok je u kontrolnoj grupi 39 (81,3%), što je statistički značajna razlika (2=45,692; p=0,000). Prosečna količina date alogene krvi u ispitivanoj grupi je 33,33 ± 99,2 ml, dok je prosečna količina date alogene krvi u kontrolnoj grupi bila skoro deset puta veća i iznosila je 319,2 ± 230 ml, što je statistički značajno veće (Z = -6,625; p = 000). Postoperativne vrednosti hemoglobina, hematokrita i trombocita bile su statistički značajno veće u isptivanoj grupi. Bolesnici iz ispitivane grupe su statistički značajno ranije postoperativno uzimali prvi obrok, sedeli i ustajali od bolesnika u kontrolnoj grupi. Zaključci Iz dobijenih rezultata o intraoperativnom, postoperativnom i ukupnom perioperativnom krvarenju može se zaključiti da je traneksamična kiselina veoma efikasan lek i da statistički značajno smanjuje krvarenje vezano za ugradnju totalne proteze kolena i da smanjuje upotrebu transfuzije alogene krvi za 66,7%. Traneksamična kiselina je uticajem na smanjenje perioperativnog krvarenja dovela do očuvanja vrednosti hemoglobina, hematokrita i trombocita. Bolesnici koji su dobijali traneksamičnu kiselinu su takođe imali brži i kvalitetniji neposredni postoperativni oporavak.
Introduction: Total knee arthroplasty today is efficient and safe surgical procedure. Being extensive orthopaedic surgical procedure poses a risk from substantial perioperative bleeding and consecutive usage of blood products.  Trends in modern medicine and surgery are in favor of restrictive usage of blood products and there are paramount efforts in researching and developing new techniques and methods of allogenic blood transfusion alternatives. Tranexamic acid as fibrinolytic agent is good example of substance that can be used to reduce preoperative bleeding in orthopaedic surgery. Aims of the study: We wanted to explore effects of tranexamic acid on perioperative bleeding reduction in total knee arthroplasty, and it’s effect on reduction of blood product usage in this surgical population. Маterial and methods: We conducted double blind, randomized controlled trial with 96 adult patient (older than 18 years) in the study, 48 in two groups. All patients had elective, unilateral total knee arthroplasty. First group got tranexamic acid(TA), and second (control) group got normal saline. Surgery was performed in spinal anaesthesia with usage of pneumatic tourniquet in all patients. First group got tranexamic acid 15mg /kg/ bw и 10 mg/kg/bw as continuous intravenous infusion in duration of 15 min. Control group got same amount of normal saline. First dose of TA was given at the beginning of the operation and second dose 15 min before release of the tourniquet. Control group got normal saline at the same way. Intraoperative blood loss was measured as blood loss in suction bottle and blood loss on the surgical sponges. Postoperative blood loss was measured as blood loss in surgical wound drains after 6, 12, and 24 hours. Number of blood units and total amount of blood and blood products in milliliters were also recorded. Results There are statistically significant difference in average intraoperative bleeding between groups in favor tranexamic acid group (Z = -7,281; p = 000).Average intraoperative bleeding in TA group is 100 ± 92,690 mil, vs 447 ± 299,282 mil in control group. Patient in TA group has statistically significant less total postoperative bleeding (T test, t=4,024, p<0,01)( TA group 309,78± 143,612 mil vs,420 ± 201,177 mil). Blood loss was statistically significant less after 6 (p < 001) and 12 hrs (p <0,05). in TA group. Total perioperative bleeding was statistically significant less (p< 0,000) in TA group and TA decreased total blood loss from 919,36 ml (95%IP 822,083-1016,640) to 405,32 ml (95%IP 353,407-457,231).Average total blood loss was 662,34 ml with interval from 100 to 1700 ml. In TA group only 5 (10,4%) patients received vs control group where 39 (81,3%) patients received allogenic blood transfusion and that is statistically significant (2=45,692; p=0,000).Average blood usage in TA group was 33,33 ± 99,2 ml vs 319,2 ± 230 ml in the control group (Z = -6,625; p = 000). Postoperative hemoglobin, haematocrit and platelets count values were statistically significant less in control group. Patient in TA group had earlier first postoperative meal, sitting and standing earlier than patient in the control group. Concliusions Data from this study clearly shows that intraoperative, postoperative and total perioperative blood loss in total knee arthroplasty are reduced with usage of tranexamic acid. Tranexamic acid is effective in reducing perioperative blood loss and usage of allogenic blood transfusion, which dropped for 66,7%.This reduced blood loss led to higher postoperative hemoglobin levels. Patients from TA group showed faster postoperative functional recover.
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Nemanja, Kovačev. „Poređenje rezultata primarne i ponovne rekonstrukcije prednje ukrštene veze kolena“. Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=100460&source=NDLTD&language=en.

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Studija se sastojala od dva dela – eksperimentalnog i kliničkog. Eksperimentalni deo je sproveden na Fakultetu tehničkih nauka u Novom Sadu na Departmanu za mehanizaciju i konstrukciono mašinstvo. Trideset dve zglobne površine gornjeg okrajka golenjače sa pripojem prednje ukrštene veze je uzeto tokom totalne aloartroplastike kolena kod trideset dva pacijenta kod kojih je preoperativno načinjena AP i profilna radiografija sa standardnim uvećanjem u cilju merenja veličine kolena a uz prethodno potpisanu saglasnost pacijenata. Zatim je načinjeno trodimenzionalno skeniranje prostorne površine pripoja prednje ukrštene veze na golenjači u odnosu na ravan zglobne površine golenjače heptičkim uređajem „Phantom Omni®“ radi utvrđivanja korelacije između površine pripoja prednje ukrštene veze na golenjači i veličine platoa golenjače. U eksperimentalni deo su bili uključeni pacijenti oba pola metodom slučajnog izbora kod kojih je ugrađivana totalna proteza kolena a koji su prethodno potpisali informisani pristanak pacijenta na operativni zahvat na Klinici za ortopedsku hirurgiju i traumatologiju Kliničkog centra Vojvodine. Klinički deo studije je bio retrospektivno-prospektivnog karaktera i obuhvatio je ukupno 60 pacijenata izabranih metodom slučajnog izbora od kojih je ispitivanu grupu činilo 30 pacijenata u kojih je došlo do ponovne rupture prednje ukrštene veze levog ili desnog kolena nakon urađene primarne rekonstrukcije te je načinjena ponovna rekonstrukcija veze, i kontrolnu grupu koju je činilo 30 pacijenata u kojih je zbog rupture prednje ukrštene veze načinjena primarna rekonstrukcija nakon koje nije došlo do ponovne rupture. Kod svih pacijenata je rekonstrukcija prednje ukrštene veze kolena rađena kalemom kost-tetiva-kost. Ishod rekonstrukcije je procenjivan na osnovu Tegner bodovne skale, Lysholm i IKDC bodovne skale za koleno, artrometrijskog merenja Lachman testa, Pivot shift testa, poloţaja kalema i urađeno je poređenje dobijenih rezultata u ispitivanoj (revizionoj) i kontrolnoj grupi. U klinički deo istraţivanja su bili uključeni pacijenti oba pola, ţivotne dobi od 18 do 40 godina koji su operisani na Klinici za ortopedsku hirurgiju i traumatologiju Kliničkog centra Vojvodine u Novom Sadu a koji su dali informisani pristanak za uključivanje. Kriterijumi za isključivanje pacijenata iz kliničkog dela istraživanja su bili životna dob manja od 18 i veća od 40 godina, pojava težih opšte-hirurških komplikacija i prestanak želje pacijenta da dalje učestvuje u ovom istraživanju. Nakon sveobuhvatne analize dobijenih rezultata istraţivanja, zaključeno je da postoji korelacija između površine pripoja prednje ukrštene veze na golenjači i veličine platoa golenjače. Formula, načinjena matematičko-statističkim metodama za ovo istraživanje, adekvatna je i praktično primenljiva za predikciju površine pripoja prednje ukrštene veze na golenjači u velikom procentu slučajeva a na osnovu samo dva radiografska parametra izmerenih preoperativno – prednje-zadnjeg i unutrašnje-spoljašnjeg dijametra platoa golenjače. Korišćenje ove formule može da doprinese poboljšanju rezultata hirurškog lečenja pacijenata sa pokidanom prednjom ukrštenom vezom kolena. Takođe, zaključeno je da je uzrok neuspeha primarne rekonstrukcije multifaktorijalan kao i da nema statistički značajne razlike u ishodu između ispitanika sa dobrom i ispitanika sa lošom pozicijom kalema. Potvrđena je pretpostavka da je ishod ponovne rekonstrukcije prednje ukrštene veze kolena slabiji u odnosu na ishod primarne.
This study consisted of two parts – experimental and clinical. Experimental part was conducted at the Department of Mechanization and Design Engineering of The Faculty of Technical Sciences, University of Novi Sad. Thirty two proximal tibial articular surfaces together with the anterior cruciate ligament insertion of thirty two patients were harvested during total knee arthroplasty. All patients had standard preoperative AP and profile radiographs with standard magnification in order to acquire the knee measurements. All patients previously signed the informed consent. The harvested proximal tibial articular surfaces were 3D scanned by a haptic device called „Phantom Omni®“ in order to determine the correlation between the size of the anterior cruciate ligament insertion site and the size of the tibial plateau. Thirty two randomly chosen patients of both sexes which had a knee arthroplasty were included in the experimental part of this study. All of the patients signed the informed consent at The Clinic for Orthopedic Surgery and Traumatology of The Clinical Centre of Vojvodina. The clinical part was a retrospective-prospective study. This part included 60 randomly chosen patients divided into two groups. The test group consisted of 30 patients who had undergone a revision anterior cruciate ligament reconstruction. The control group consisted of 30 patients who had undergone only primary anterior cruciate ligament reconstruction. A bone-tendon-bone graft was used for the reconstruction in all cases. The outcome was assessed by using Tegner activity scale, Lysholm knee scoring scale, IKDC score, arthrometric evaluation, Pivot shift test and the position of the graft. The results were compared between the test group and the control group. The clinical part of the study included 60 patients of both sexes, age 18-40 which were operated at The Clinic for Orthopedic Surgery and Traumatology of The Clinical Centre of Vojvodina. All of the patients signed the informed consent for participation in this study. The exclusion criteria were age under 18 and above 40, occurrence of severe general surgical complications and a patient wish to be excluded from further investigation. After a thorough analysis of the results, we concluded that the correlation between the size of the anterior cruciate ligament tibial insertion site and the size of the tibial plateau exists. Formula which was created for this study by using mathematical and statistical methods, is adequate and practically applicable for the prediction of size of the anterior cruciate ligament tibial insertion site in the majority of cases based on just two preoperative radiographic parameters – AP and profile diameter of the tibial plateau. The use of this formula may improve the outcome of the anterior cruciate ligament reconstruction. We also concluded that the cause of the primary anterior cruciate ligament reconstruction failure is multifactorial as well as that there is no statistically significant difference between the patients with good and the patients with poor graft position. We confirmed the assumption that the outcome of the revision anterior cruciate ligament reconstruction is poorer than the outcome of the primary anterior cruciate ligament reconstruction.
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Parsa, Maryam. „Optimum Decision Policy for Gradual Replacement of Conventional Power Sources by Clean Power Sources“. Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24015.

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With the increase of world population and industrial growth of developing countries, demand for energy, in particular electric power, has gone up at an unprecedented rate over the last decades. To meet the demand, electric power generation by use of fossil fuel has increased enormously thereby producing increased quantity of greenhouse gases. This contributes more and more to atmospheric pollution, which climate scientists believe can adversly affect the global climate, as well as health and the welfare of the world population. In view of these issues, there is global awareness to look for alternate sources of energy such as natural gas, hydropower, wind, solar, geothermal and biomass. It is recognized that this requires replacement of existing infrastructure with new systems, which cannot be achieved overnight. Optimal control theory has been widely used in diverse areas of physical sciences, medicine, engineering and economics. The main motivation of this thesis is to use this theory to find the optimum strategy for integration of all currently available renewable energy sources with the existing electric power generating systems. The ultimate goal is to eliminate fossil fuels. Eight main energy sources namely, Coal, Petroleum, Natural Gas, Conventional Hydro, Wind, Solar, Geothermal and Biomass are considered in a dynamic model. The state of the dynamic model represents the level of energy generation from each of the sources. Different objective functions are proposed in this thesis. These range from meeting the desired target level of power generation from each of the available sources at the end of a given plan period, to reducing the implementation and investment costs; from minimizing the production from polluted energy sources to meeting the electricity demand during a whole plan period. Official released data from the U.S. Energy Information Administration have been used as a case study. Based on real life data and the mathematics of optimal control theory, we present an optimal policy for integration of renewable energy sources to the national power grid.
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Bücher zum Thema "Replacement source"

1

National Research Council (U.S.). Nuclear and Radiation Studies Board., Hrsg. Radiation source use and replacement: Abbreviated version. Washington, D.C: National Academies Press, 2008.

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Abbas, Muniem Ismail. Construction of duopigatron sputtering ion source, used in investigations of range profiles, trapping and replacement of low energy deuterium ions into different materials. Salford: University of Salford, 1986.

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Thompson. Replacement Source Documents. South-Western Educational Publishing, 1999.

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Thyristor replacement & alternate source guide. San Diego, Calif: D.A.T.A., Inc., 1987.

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Associates, Derivation and Tabulation, Hrsg. IC replacement & alternate source guide. 4. Aufl. San Diego: D.A.T.A. Inc, 1987.

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Radiation Source Use and Replacement. Washington, D.C.: National Academies Press, 2008. http://dx.doi.org/10.17226/11976.

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Fitzgerald, Jim. Ic Replacement and Alternative Source Guide. Pubn Dev Co, 1987.

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Transistor replacement of alternate source guide. San Diego, Calif: D.A.T.A., Inc., 1987.

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Associates, Derivation and Tabulation, Hrsg. Diode replacement of alternate source guide. San Diego, Calif: D.A.T.A., Inc., 1987.

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Associates, Derivation and Tabulation, Hrsg. Suggested replacement/alternate source guide for discrete semiconductors. San Diego, Calif: D.A.T.A. Inc., 1986.

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Buchteile zum Thema "Replacement source"

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Mizuhara, Hisao, Takaaki Koshiji, Kazunobu Nishimura, Shinichi Nomoto, Katsuhiko Matsuda, Norimasa Tsutsui, Katsumi Kanda und Toshihiko Ban. „Application of the Latissimus Dorsi Muscle as a Biological Energy Source for Circulatory Assist Devices“. In Heart Replacement, 255–57. Tokyo: Springer Japan, 1996. http://dx.doi.org/10.1007/978-4-431-67020-9_34.

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Falk, Heiko, und Peter Marwedel. „Ring Buffer Replacement“. In Source Code Optimization Techniques for Data Flow Dominated Embedded Software, 163–80. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4020-2829-8_7.

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Hirschmann, Michael T. „2 Biology of the Knee After Total Knee Replacement: Neglected Potential or Source of Failure?“ In The Unhappy Total Knee Replacement, 17–27. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-08099-4_2.

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Chechik, Shiri, und Sarel Cohen. „Near Optimal Algorithms For The Single Source Replacement Paths Problem“. In Proceedings of the Thirtieth Annual ACM-SIAM Symposium on Discrete Algorithms, 2090–109. Philadelphia, PA: Society for Industrial and Applied Mathematics, 2019. http://dx.doi.org/10.1137/1.9781611975482.126.

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Offen, Daniel, Yossef S. Levy und Eldad Melamed. „Stem Cells as a Source for Cell Replacement in Parkinson’s Disease“. In Stem Cell and Gene-Based Therapy, 97–122. London: Springer London, 2006. http://dx.doi.org/10.1007/1-84628-142-3_7.

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Olaniyi, Aborisade Dada, Reich Christoph, Sodiya Adesina Simon, Akinwale Adio Taofeek und Biodun S. Badmus. „Resolving DRDoS Attack in Cloud Database Service Using Common Source IP and Incremental Replacement Strategy“. In Proceedings of SAI Intelligent Systems Conference (IntelliSys) 2016, 725–37. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56991-8_52.

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Behling, Rolf. „Manufacturing, service, and tube replacement“. In Modern Diagnostic X-Ray Sources, 343–55. 2. Aufl. Second edition. | Boca Raton : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/9781003095408-9.

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Anderson, Julie, Francis Neary und John V. Pickstone. „Total Hip Replacement: Introduction, Sources and Outline“. In Surgeons, Manufacturers and Patients, 1–18. London: Palgrave Macmillan UK, 2007. http://dx.doi.org/10.1057/9780230596238_1.

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Sarkar Dey, Subhanwita, Noriko Yoshida und Kouichi Hasegawa. „Overview of Pancreatic Replacement of β-Cells from Various Cell Sources“. In Stem Cell Therapy for Organ Failure, 181–93. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-2110-4_14.

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Bellanca, Nicolò, und Luca Pardi. „Risorse e popolazione umana“. In Studi e saggi, 21–45. Florence: Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-195-2.06.

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The history of the genus Homo, and of the sapiens species in particular, is different from that of other species due to the extreme importance of cultural evolution compared to biological evolution. But from the discovery of how to use fire and generate it, up to the invention of the steam engine, man essentially lives, like the other organisms of the biosphere, on the energy flow guaranteed by solar radiation. With the encounter between machines and fossil fuels and the entry into the era of engines, the rules of the game change radically, and the activities of Homo sapiens change in extent and intensity, in such a way as to progressively reduce the living space of all other animal and plant species, except for the allied and commensal ones. The global industrialized society arising from the meeting between machines and fossil sources is presently facing two fundamental difficulties: the gradual saturation of terrestrial ecosystems with the waste of social and economic metabolism, and the finiteness of fossil energy sources, which are not easy replacement due to their special chemical-physical properties.
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Konferenzberichte zum Thema "Replacement source"

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Gupta, Manoj, Rahul Jain und Nitiksha Modi. „Multiple Source Replacement Path Problem“. In PODC '20: ACM Symposium on Principles of Distributed Computing. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3382734.3405714.

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Bond, Leonard J., Jeffrey W. Griffin, Kayte M. Denslow, Robert V. Harris, Thomas Schenkel, A. Persaud, Gregory E. Dale et al. „Nuclear Source Replacement in Petrochemical Well‐Logging“. In SEG Technical Program Expanded Abstracts 2010. Society of Exploration Geophysicists, 2010. http://dx.doi.org/10.1190/1.3513833.

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Jacobs, Matthew, und E. Christopher Lewis. „SMART C: A Semantic Macro Replacement Translator for C“. In 2006 Sixth IEEE International Workshop on Source Code Analysis and Manipulation. IEEE, 2006. http://dx.doi.org/10.1109/scam.2006.28.

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Longmier, Benjamin, und Noah Hershkowitz. „Non-Ambipolar Electron Source As A Replacement For Hollow Cathodes“. In 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.2006-5155.

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Grandoni, Fabrizio, und Virginia Vassilevska Williams. „Improved Distance Sensitivity Oracles via Fast Single-Source Replacement Paths“. In 2012 IEEE 53rd Annual Symposium on Foundations of Computer Science (FOCS). IEEE, 2012. http://dx.doi.org/10.1109/focs.2012.17.

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Gazizova, Adel, Andrey Zolotarev, Vladislav Myrov, Anastasiya Vinogradova, Aleksandr Cheblokov, Evgeny Bakin und Oksana Stanevich. „Open Source Tool for VH-replacement Products Discovery and Analysis“. In 2018 22nd Conference of Open Innovations Association (FRUCT). IEEE, 2018. http://dx.doi.org/10.23919/fruct.2018.8468299.

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Hong, Yong. „Detection of a Counterfeit OTA Device and Certification of a Replacement Source“. In ISTFA 2011. ASM International, 2011. http://dx.doi.org/10.31399/asm.cp.istfa2011p0234.

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Abstract The counterfeiting of semiconductor devices has become an important contributor as more components are used in the increasingly sophisticated audio and navigation systems while more suppliers are moving manufacturing plants off-shore. This paper presents a case study on how the authors were able to identify a counterfeit device and certify a replacement source. In this study, failed devices with Intersil CA3080 Operational Transductance Amplifier IC from factory testing and field returns in suspect lot codes were purchased from a second source, due to the unavailability of the obsolete device from the regular first source. The suspect lot codes that were not recognizable by the manufacturer were determined to be counterfeit devices. Many pieces of physical evidence suggested that the failed devices were not consistent with genuine devices directly purchased from the manufacturer.
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Saethre, R., B. Morris und H. Sanders. „Thyratron replacement for the spallation neutron source linac extraction kicker PFN system“. In 2015 IEEE Pulsed Power Conference (PPC). IEEE, 2015. http://dx.doi.org/10.1109/ppc.2015.7297034.

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Berg, P. M. van den, A. Abubakar und T. M. Habashy. „Removal of sea‐surface‐related wavefields and source replacement in CSEM data processing“. In SEG Technical Program Expanded Abstracts 2008. Society of Exploration Geophysicists, 2008. http://dx.doi.org/10.1190/1.3063739.

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Ding, Li, Yun Wei Li und Kai Sun. „Discontinuous Bi-tri Logic SPWM for Current Source Converter with Optimized Zero-state Replacement“. In 2020 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2020. http://dx.doi.org/10.1109/apec39645.2020.9124051.

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Berichte der Organisationen zum Thema "Replacement source"

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Griffin, Jeffrey W., Traci L. Moran und Leonard J. Bond. Radiation Source Replacement Workshop. Office of Scientific and Technical Information (OSTI), Dezember 2010. http://dx.doi.org/10.2172/1062523.

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Kaymaz, Sidar, und Alaattin Diri. Use of Information Technology Tools in Source Selection Decision Making: A Study on USAF's KC-X Tanker Replacement Program. Fort Belvoir, VA: Defense Technical Information Center, Juni 2008. http://dx.doi.org/10.21236/ada483198.

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Baral, Aniruddha, Jeffery Roesler und Junryu Fu. Early-age Properties of High-volume Fly Ash Concrete Mixes for Pavement: Volume 2. Illinois Center for Transportation, September 2021. http://dx.doi.org/10.36501/0197-9191/21-031.

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High-volume fly ash concrete (HVFAC) is more cost-efficient, sustainable, and durable than conventional concrete. This report presents a state-of-the-art review of HVFAC properties and different fly ash characterization methods. The main challenges identified for HVFAC for pavements are its early-age properties such as air entrainment, setting time, and strength gain, which are the focus of this research. Five fly ash sources in Illinois have been repeatedly characterized through x-ray diffraction, x-ray fluorescence, and laser diffraction over time. The fly ash oxide compositions from the same source but different quarterly samples were overall consistent with most variations observed in SO3 and MgO content. The minerals present in various fly ash sources were similar over multiple quarters, with the mineral content varying. The types of carbon present in the fly ash were also characterized through x-ray photoelectron spectroscopy, loss on ignition, and foam index tests. A new computer vision–based digital foam index test was developed to automatically capture and quantify a video of the foam layer for better operator and laboratory reliability. The heat of hydration and setting times of HVFAC mixes for different cement and fly ash sources as well as chemical admixtures were investigated using an isothermal calorimeter. Class C HVFAC mixes had a higher sulfate imbalance than Class F mixes. The addition of chemical admixtures (both PCE- and lignosulfonate-based) delayed the hydration, with the delay higher for the PCE-based admixture. Both micro- and nano-limestone replacement were successful in accelerating the setting times, with nano-limestone being more effective than micro-limestone. A field test section constructed of HVFAC showed the feasibility and importance of using the noncontact ultrasound device to measure the final setting time as well as determine the saw-cutting time. Moreover, field implementation of the maturity method based on wireless thermal sensors demonstrated its viability for early opening strength, and only a few sensors with pavement depth are needed to estimate the field maturity.
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Baral, Aniruddha, Jeffrey Roesler, M. Ley, Shinhyu Kang, Loren Emerson, Zane Lloyd, Braden Boyd und Marllon Cook. High-volume Fly Ash Concrete for Pavements Findings: Volume 1. Illinois Center for Transportation, September 2021. http://dx.doi.org/10.36501/0197-9191/21-030.

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High-volume fly ash concrete (HVFAC) has improved durability and sustainability properties at a lower cost than conventional concrete, but its early-age properties like strength gain, setting time, and air entrainment can present challenges for application to concrete pavements. This research report helps with the implementation of HVFAC for pavement applications by providing guidelines for HVFAC mix design, testing protocols, and new tools for better quality control of HVFAC properties. Calorimeter tests were performed to evaluate the effects of fly ash sources, cement–fly ash interactions, chemical admixtures, and limestone replacement on the setting times and hydration reaction of HVFAC. To better target the initial air-entraining agent dosage for HVFAC, a calibration curve between air-entraining dosage for achieving 6% air content and fly ash foam index test has been developed. Further, a digital foam index test was developed to make this test more consistent across different labs and operators. For a more rapid prediction of hardened HVFAC properties, such as compressive strength, resistivity, and diffusion coefficient, an oxide-based particle model was developed. An HVFAC field test section was also constructed to demonstrate the implementation of a noncontact ultrasonic device for determining the final set time and ideal time to initiate saw cutting. Additionally, a maturity method was successfully implemented that estimates the in-place compressive strength of HVFAC through wireless thermal sensors. An HVFAC mix design procedure using the tools developed in this project such as the calorimeter test, foam index test, and particle-based model was proposed to assist engineers in implementing HVFAC pavements.
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