Relevant bibliographies by topics / HFLC

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'HFLC'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "HFLC"

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Hammoud, Rola, Emanuela Pannia, Chih-Sheng Liao, Ruslan Kubant, Erland Arning, Teodoro Bottiglieri, Zdenka Pausova, and G. Harvey Anderson. "Choline Supplementation Mitigates the Adverse Effects of a High Folic Acid Maternal Diet on Food Intake Regulation in the Offspring." Current Developments in Nutrition 4, Supplement_2 (May 29, 2020): 1806. http://dx.doi.org/10.1093/cdn/nzaa067_033.

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Abstract Objectives Folic acid (FA) intake by many women in North America is exceeding recommendations. We have shown that high maternal FA induces methylation-dependent programming of energy regulation associated with an obesogenic phenotype in adult rat offspring. However, it is unclear if this is a direct effect of high FA or due to an imbalance between FA and other methyl-nutrients (i.e., choline) in the 1-carbon cycle. Unlike FA, choline intake by women is below recommendations and is absent from most prenatal supplements, potentially affecting fetal development. The objective of this study was to examine the mechanisms and effects of choline content in high FA maternal diets on in-utero programming of energy regulation and later-life offspring phenotype. Methods Pregnant Wistar rats were fed an AIN-93 G diet with recommended FA and choline (1X, RFRC, control), or 5X-FA diet with choline at 0.5X-(HFLC), 1X-(HFRC), or 2.5X- (HFHC). In pups at birth, brain and liver 1-carbon metabolites, hypothalamic DNA methyltransferase (DNMT) activity and global DNA methylation (5-mC%) were measured. At weaning, one male pup/dam was fed the control diet and weekly weight-gain and food intake were recorded for 20 weeks. Results Offspring born to dams on the HFLC and HFRC, but not HFHC diet, had higher food intake (P < 0.05) and weight-gain (P < 0.01) than controls. In liver at birth, free choline was lower in HFHC than in HFLC pups, but betaine was unaffected. In contrast, in brains, betaine but not free choline concentrations, directly reflected the maternal choline diets. These results suggest that choline may modulate central food intake pathways via the methyl-donor betaine, warranting further investigation. Hypothalamic DNMT activity was highest (P < 0.05) in HFLC pups but global methylation was not affected. Thus, gene expression by RNA sequencing and gene-specific methylation in the hypothalamus is in progress to elucidate the mechanisms underlying the observed phenotype. Conclusions Increased maternal choline mitigates the high FA diet induced increase in body weight and food intake in the adult offspring and results in tissue-specific changes in 1-carbon metabolism at birth. These findings have potential application to human health, providing support to optimize choline and FA intakes by women of childbearing age. Funding Sources CIHR-INMD.
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Hopkins, Mark, Catherine Gibbons, Phillipa Caudwell, John E. Blundell, and Graham Finlayson. "Differing effects of high-fat or high-carbohydrate meals on food hedonics in overweight and obese individuals." British Journal of Nutrition 115, no. 10 (March 22, 2016): 1875–84. http://dx.doi.org/10.1017/s0007114516000775.

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AbstractAlthough the effects of dietary fat and carbohydrate on satiety are well documented, little is known about the impact of these macronutrients on food hedonics. We examined the effects ofad libitumand isoenergetic meals varying in fat and carbohydrate on satiety, energy intake and food hedonics. In all, sixty-five overweight and obese individuals (BMI=30·9 (sd3·8) kg/m2) completed two separate test meal days in a randomised order in which they consumed high-fat/low-carbohydrate (HFLC) or low-fat/high-carbohydrate (LFHC) foods. Satiety was measured using subjective appetite ratings to calculate the satiety quotient. Satiation was assessed by intake atad libitummeals. Hedonic measures of explicit liking (subjective ratings) and implicit wanting (speed of forced choice) for an array of HFLC and LFHC foods were also tested before and after isoenergetic HFLC and LFHC meals. The satiety quotient was greater afterad libitumand isoenergetic meals during the LFHC condition compared with the HFLC condition (P=0·006 andP=0·001, respectively), whereasad libitumenergy intake was lower in the LFHC condition (P<0·001). Importantly, the LFHC meal also reduced explicit liking (P<0·001) and implicit wanting (P=0·011) for HFLC foods compared with the isoenergetic HFLC meal, which failed to suppress the hedonic appeal of subsequent HFLC foods. Therefore, when coupled with increased satiety and lower energy intake, the greater suppression of hedonic appeal for high-fat food seen with LFHC foods provides a further mechanism for why these foods promote better short-term appetite control than HFLC foods.
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Raharjo, Budiono, and Solichul Hadi. "HIGH FLUORESCENT LYMPHOCYTE COUNT EXAMINATION IN DENGUE HEMORRHAGIC PATIENTS WITH SYSMEX XN-1000 HEMATOLOGY ANALYZER." INDONESIAN JOURNAL OF CLINICAL PATHOLOGY AND MEDICAL LABORATORY 25, no. 2 (April 13, 2019): 207. http://dx.doi.org/10.24293/ijcpml.v25i2.1443.

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Sysmex XN-1000 hematology analyzer is an automated 5-part diff analyzer (eosinophils, basophils, neutrophils, lymphocytes, and monocytes). In the calculated area, the type of difference between the Sysmex hematology device and other hematology devices is Immature Granulocyte (IG), Nucleated Red Blood Cell (NRBC), and High Fluorescent Lymphocytes Count (HFLC). The cells calculated in the HFLC area are atypical lymphocytes. In patients with dengue hemorrhagic fever, it is often found atypical lymphocytes called blue plasma lymphocytes. The purpose of this study was to determine the description of HFLC in patients with dengue fever using the hematology analyzer Sysmex XN-1000. A descriptive retrospective study was conducted during April-May 2017. The subjects of the study were adult patients diagnosed with dengue hemorrhagic fever with WHO criteria. Of the 47 samples of Dengue Hemorrhagic Fever (DHF) patients, the average HFLC results were between 2.0-32.3%, which was 11.5%, while the average range of normal HFLC values was between 0.0-1.4% and was 0.3%. In cases of DHF, there is an increase in HFLC. This is likely to be attributed to atypical lymphocyte increase in dengue hemorrhagic fever. Further research with more varied samples still needs to be done.
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Bandyopadhyay, Kaustav, Pabitra Kumar Parua, Ajit Bikram Datta, and Pradeep Parrack. "Escherichia coli HflK and HflC can individually inhibit the HflB (FtsH)-mediated proteolysis of λCII in vitro." Archives of Biochemistry and Biophysics 501, no. 2 (September 2010): 239–43. http://dx.doi.org/10.1016/j.abb.2010.06.030.

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Hafez, Ahmed T., and Mohamed A. Kamel. "Cooperative Task Assignment and Trajectory Planning of Unmanned Systems Via HFLC and PSO." Unmanned Systems 07, no. 02 (April 2019): 65–81. http://dx.doi.org/10.1142/s2301385019500018.

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This paper investigates the problems of cooperative task assignment and trajectory planning for teams of cooperative unmanned aerial vehicles (UAVs). A novel approach of hierarchical fuzzy logic controller (HFLC) and particle swarm optimization (PSO) is proposed. Initially, teams of UAVs are moving in a pre-defined formation covering a specified area. When one or more targets are detected, the teams send a package of information to the ground station (GS) including the target’s degree of threat, degree of importance, and the separating distance between each team and each detected target. Based on the gathered information, the ground station assigns the teams to the targets. HFLC is implemented in the GS to solve the assignment problem ensuring that each team is assigned to a unique target. Next, each team plans its own path by formulating the path planning problem as an optimization problem. The objective in this case is to minimize the time to reach their destination considering the UAVs dynamic constraints and collision avoidance between teams. A hybrid approach of control parametrization and time discretization (CPTD) and PSO is proposed to solve this optimization problem. Finally, numerical simulations demonstrate the effectiveness of the proposed algorithm.
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Haider, Rana Zeeshan, Najeed Ahmed Khan, Eloisa Urrechaga, and Tahir Sultan Shamsi. "Mature and Immature/Activated Cells Fractionation: Time for a Paradigm Shift in Differential Leucocyte Count Reporting?" Diagnostics 11, no. 6 (May 21, 2021): 922. http://dx.doi.org/10.3390/diagnostics11060922.

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Leucocytes, especially neutrophils featuring pro- and anti-cancerous characteristics, are involved in nearly every stage of tumorigenesis. Phenotypic and functional differences among mature and immature neutrophil fractions are well reported, and their correlation with tumor progression and therapy has emerging implications in modern oncology practices. Technological advancements enabled modern hematology analyzers to generate extended information (research parameters) during complete blood cell count (CBC) analysis. We hypothesized that neutrophil and lymphocyte fractions-related extended differential leucocytes count (DLC) parameters hold superior diagnostic utility over routine modalities. The present study was carried out over a four-and-a-half-year period wherein extended neutrophil (immature granulocyte [IG] and mature neutrophil [NEUT#&]), and lymphocyte (activated/high fluorescence lymphocyte count [HFLC] and resting lymphocyte [LYMP#&]) parameters were challenged over routine neutrophil [NEUT#] and lymphocyte [LYMP#] items in a study population of 1067 hematological neoplasm patients. Extending the classical statistical approaches, machine-learning-backed data visualization was used to explore trends in the study parameters. As a whole, extended neutrophil and lymphocyte count outperformed and was diagnostically more relevant than routine neutrophil and lymphocyte parameters by showing the least difference from their respective (gold-standard) manual DLC counts. The mature neutrophil count was compared to IG, and resting lymphocyte count was compared to HFLC by calling the function ‘correlation’ as a ‘clustering function’ for heatmap based visualization. The aforementioned study parameters displayed close clustering (rearrangement) for their respective study items by presenting distinct trends of equally valuable weights (deviated values), advocating fractions-based extended DLC reporting. Importantly, using a Bland and Altman analysis analogously to a manual neutrophil count, the mature neutrophil count [NEUT#&] remained unbiased since a routine neutrophil count [NEUT#] was found to be a negatively biased. The extended DLC-parameter-driven fractions-based reporting has superior diagnostic utility over classical routine approaches; this finding can largely minimize labor-intensive manual DLC practices, especially in hematology–oncology departments.
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Breda, Laura, Sara Gardenghi, Ella Guy, Ninette Amariglio, Konstantin Adamsky, Orly Weizer-Stern, Eliezer Rachmilewitz, et al. "Kinetic of Iron Absorption and Expression of Iron Related Genes in Beta-Thalassemia." Blood 106, no. 11 (November 16, 2005): 3846. http://dx.doi.org/10.1182/blood.v106.11.3846.3846.

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Abstract We generated the first transplantable adult mouse models of beta-thalassemia intermedia and major by infusing mouse hematopoietic-fetal-liver cells (HFLC) heterozygous or homozygous for a deletion of the beta-globin gene (respectively with th3/+ and th3/th3 cells) into lethally irradiated congenic C57BL/6 mice. Six to 8 weeks post transplantation, mice transplanted with th3/+ HFLCs show 7 to 9 g/dL of hemoglobin levels, splenomegaly, abnormal red cells and increased iron overload. Mice transplanted with th3/th3 HFLCs, unless blood transfused, die 8 to 10 weeks after engraftment showing profound anemia, massive splenomegaly and very rapid and dramatic iron overload. For this reason, we began a systematic study to compare iron content and the expression level of iron related genes in normal and thalassemic mice of varying ages and sex in different organs (liver, duodenum, spleen, kidney and heart). In liver, we observed that iron content increases proportionally with the level of anemia, age and if the blood transfusion is included. We are currently analyzing the other organs. The expression of hepcidin, ferroportin, Hfe, ferritin, transferrin, transferrin-receptor 1 and 2, ceruloplasmin, divalent metal transporter 1 and hemojuvelin are being tested also in all these organs. In particular, we observed that hepcidin is dramatically downregulated in liver of beta-thalassemic animals. Our hypothesis is that low expression of this gene leads to high iron content in these animals. We intend to demonstrate that administration or increasing hepcidin levels of this peptide can prevent iron absorption in beta-thalassemia. We developed two alternative strategies to test our hypothesis. In the first one, we synthesized the active form of the mouse hepcidin peptide that will be administered intraperitoneally to mice affected by beta-thalassemia. In the second, lentiviral vectors have been generated in order to constitutively secrete hepcidin in the bloodstream of animals affected by beta-thalassemia. These vectors were introduced into hematopoietic stem cells derived from mouse embryos of normal and mice affected by beta-thalassemia and engrafted in myeolablated normal mice. The engrafted mice express hepcidin 6 weeks post transplantation by RT PCR. These animals, along with the animals in which hepcidin will be administrated intraperitoneally, will be analyzed at the endpoint of the experiment (&gt; 4 months) for their hematological values and iron content to see if the use of hepcidin can be used to prevent excessive iron absorption in beta-thalassemia.
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Dutta, Dipak, Kaustav Bandyopadhyay, Ajit Bikram Datta, Abhijit A. Sardesai, and Pradeep Parrack. "Properties of HflX, an Enigmatic Protein from Escherichia coli." Journal of Bacteriology 191, no. 7 (January 30, 2009): 2307–14. http://dx.doi.org/10.1128/jb.01353-08.

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ABSTRACT The Escherichia coli gene hflX was first identified as part of the hflA operon, mutations in which led to an increased frequency of lysogenization upon infection of the bacterium by the temperate coliphage lambda. Independent mutational studies have also indicated that the HflX protein has a role in transposition. Based on the sequence of its gene, HflX is predicted to be a GTP-binding protein, very likely a GTPase. We report here purification and characterization of the HflX protein. We also specifically examined its suggested functional roles mentioned above. Our results show that HflX is a monomeric protein with a high (30% to 40%) content of helices. It exhibits GTPase as well as ATPase activities, but it has no role in lambda lysogeny or in transposition.
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Chavero-Navarrete, Ernesto, Mario Trejo-Perea, Juan Carlos Jáuregui-Correa, Roberto Valentín Carrillo-Serrano, Guillermo Ronquillo-Lomeli, and José Gabriel Ríos-Moreno. "Hierarchical Pitch Control for Small Wind Turbines Based on Fuzzy Logic and Anticipated Wind Speed Measurement." Applied Sciences 10, no. 13 (July 2, 2020): 4592. http://dx.doi.org/10.3390/app10134592.

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Bringing electricity to areas of difficult terrain is a complicated task, so it is convenient to generate power using local natural resources, such as wind, through a small horizontal-axis wind turbine (S-HAWT). However, at the rotor height of these wind turbines, the wind is often turbulent due to obstacles such as trees and buildings. For a turbine to function properly in these conditions, the action of the wind force on the rotor must be smoothed out by controlling the pitch angle. A commercial derivative-integral-proportional (PID)-type pitch controller works well when system dynamics are stable, but not when there are disturbances in the system. This paper proposes a hierarchical fuzzy logic controller (HFLC) to solve the nonlinear system effects produced by atypical winds. The methodology includes a statistical analysis of wind variability at the installation site, which determines the functions of belonging and its hierarchy. In addition, installing an anemometer in front of the turbine allows an advanced positioning of the blades in the presence of wind gusts. The algorithm was implemented in an S-HAWT, and a comparison was made to quantify the performance difference between the proposed control strategy and a conventional PID controller.
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Kihara, A., Y. Akiyama, and K. Ito. "Host regulation of lysogenic decision in bacteriophage : Transmembrane modulation of FtsH (HflB), the cII degrading protease, by HflKC (HflA)." Proceedings of the National Academy of Sciences 94, no. 11 (May 27, 1997): 5544–49. http://dx.doi.org/10.1073/pnas.94.11.5544.

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Dissertations / Theses on the topic "HFLC"

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Loan, Nguyen Kim, and n/a. "Listening comprehension tests for intermediate students at Hanoi Foreign Languages College." University of Canberra. Education, 1989. http://erl.canberra.edu.au./public/adt-AUC20060818.141820.

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In Vietnam today there is an urgent demand for well-designed tests of listening comprehension. Little attention has been given to this problem. This field study is intended to provide guidance on the design of listening comprehension tests and in particular for intermediate level students at the Hanoi Foreign Language College (HFLC). The Field Study Report consists of six chapters. Chapter One gives a brief introduction which covers the problem, aims, subjects (testees) and the background of the Field Study Report. Chapter Two deals with the purposes of testing in some detail, setting this in the framework of the teaching-testing link, teachers and testing, and students and testing. Test characteristics are considered and the problem of sampling for test content is addressed. Chapter Three concerns test items for listening comprehension. The chapter begins with a short description of listening comprehension and is followed by a survey of theorists on listening comprehension together with the test items for listening that they suggest. Some commonly-used standardised tests and their listening items are discussed. The chapter ends with a checklist of selected listening items suitable for students at HFLC in Vietnam. Chapter Four discusses the designing and trialling of test items for listening comprehension, such as multiple choice, completion of a taped talk, matching pictures with statements etc. The chapter presents the results of the trialling of sample items and also deals with correlations between the sample tests used. Chapter Five deals with test design and development in general. It clarifies the bases for test design and provides a checklist of steps in the development of tests. In addition, the chapter includes a resources inventory for listening test items. Chapter Six presents the conclusions of the Field Study Report.
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Loc, Ton That Tung, and n/a. "Assessing the spoken English of Vietnamese EFL teacher-trainees." University of Canberra. Education, 1989. http://erl.canberra.edu.au./public/adt-AUC20060818.142405.

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This study examines the problems of constructing and administering a test of spoken English for Vietnamese EFL teacher-trainees. In an attempt to standardize the assessment, a planned oral interview was pilottested with a group of ten Vietnamese EFL teachers currently enrolled in a Graduate Diploma Course in TESOL at the Canberra College of Advanced Education, Australia. Results of the study indicate that the validity and reliability of such measurement can be achieved if certain carefully outlined procedures in planning the test and training the testers are carefully followed. Given the close relationship between testing and teaching, it is suggested in this study that there could be an improvement in the teaching of spoken English to Vietnamese EFL teacher-trainees if (i) the amount of time allocated to testing oral proficiency in the curriculum was increased, (ii) Vietnamese EFL teachers were provided with formal training in language test construction, and (iii) research on EFL oral testing was encouraged. Further, this study recommends co-operation between TEFL institutions in Vietnam to develop standard instruments for the assessment of spoken English of EFL teacher-trainees on a national level.
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Fischer, Jeffrey James. "Toward understanding the function of the universally conserved GTPase HflX." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Chemistry and Biochemistry, c2011, 2011. http://hdl.handle.net/10133/3313.

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Members of the ubiquitous GTPase superfamily regulate numerous cellular functions. A core group of eight GTPases are present in all domains of life: initiation factor 2, elongation factors Tu and G, protein secretion factors Ffh and FtsY, and the poorly characterized factors YihA, YchF, and HflX. While the first five members have well defined roles in the essential cellular process of protein synthesis, a role for YihA, YchF and HflX in this process has only recently been suggested. Here, a detailed kinetic analysis examining the interaction between HflX and its cellular partners is described. 50S and 70S ribosomal particles function as GTPase activating factors for HflX by stabilizing the nucleotide binding pocket of HflX, inducing a “GTPase activated” state. These data indicates a novel mode of GTPase activation, and suggests a role for HflX in regulating translation.
xii, 185 leaves : ill. (some col.) ; 28 cm
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Fan, Haibo. "HfC structural foams synthesized from polymer precursors." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Dissertation/FAN_HAIBO_30.pdf.

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Wheeler, Mark R. "The adsorption of HFC-134a onto zeolite Na-13X." Thesis, Brunel University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307487.

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Neilson, Martin M. "The bulk and surface properties of HFC replacement refrigerants." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312801.

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Narasimhan, Anirudhan. "Commercialization of HFAC Electronic Nerve Block Technology to Treat Chronic Post Surgical Pain." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1290641992.

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Yan, Yu. "Performance optimisation of HFC refrigerants by experimental and mathematical methods." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248796.

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Boisselier, Guilhaume. "Dépôt chimique en phase vapeur de carbures de chrome, de silicium et d'hafnium assisté par injection liquide pulsée." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0064/document.

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Des revêtements céramiques sont obtenus par un procédé de dépôt chimique en phase vapeur assisté par injection liquide pulsée (DLICVD) de précurseurs organométalliques. Des dépôts de carbure de chrome (CrCx) sont élaborés dans un réacteur tubulaire à paroi chaude à partir d’une solution de bis(benzène) chrome dans du toluène pour des températures de 475 °C et sous pression partielle d’azote (pression totale 50 Torr). Une couche d’accroche pouvant être nécessaire pour revêtir des pièces métalliques, tels des aciers et alliages, par un revêtement céramique non-oxyde de type CrCx, des couches de chrome métallique (Cr) et des carbures mixtes Cr-Si-C ont également été élaborées par ce procédé DLICVD. Ainsi, l’ajout d’un additif à base de chlore ou de soufre (par exemple l’hexachlorobenzène ou le thiophénol) dans la solution BBC/toluène permet la déposition de films de chrome métallique (Cr) à 475 °C. De plus, l’utilisation d’une solution de précurseur contenant simultanément du Si et du Cr tel que le tetrakis(trimethylsilylmethyl)chromium dans du toluène mène au dépôt d’un carbure mixte Cr-Si-C pouvant jouer le rôle d’interphase dans des assemblage céramique-métal. Des films de carbure de silicium (SiC) sont obtenus à partir de deux précurseurs (1,3 disilabutane et polysilyléthylène) injectés purs ou en solution également dans du toluène. Les dépôts sont faits dans une gamme de température comprise entre 700 et 800 °C, sous pression partielle d’azote (pression totale 50 Torr). Les films obtenus sont des films amorphes de SiC contenant une faible quantité d’hydrogène (provenant du mécanisme de décomposition des précurseurs) : a-SiC:H. Les films sont stœchiométriques dans le cas de l’injection de précurseur pur, et quasi stœchiométrique lorsque les précurseurs sont dilués dans du toluène. Les films amorphes tels que déposés deviennent nanocristallins en présentant la structure cubique du SiC après recuit sous vide à 1000 °C. L’influence du solvant (toluène) sur la composition, la morphologie et la vitesse de croissance des dépôts est discutée en fonction des systèmes chimiques étudiés et des conditions expérimentales, en particulier les conditions locales dans le réacteur DLICVD telles que les gradients de température et de concentration. Des films de carbure de hafnium (HfC) sont également élaborés par le même procédé à partir d’une solution de bis(cyclopentadiényl)diméthyl hafnium dans du toluène après avoir testé plusieurs précurseurs. Une température de 750 °C est utilisée et l’utilité d’une pression partielle de dihydrogène dans le gaz vecteur azote est démontrée (pression totale 50 Torr, 423 sccm de N2 et 77 sccm de H2). Tels que déposés, ces films sont riches en carbone (C-rich HfCx) et ont une structure quasi-amorphe. Ils deviennent nanocristallins après recuit sous vide à 1000 °C. Enfin, la mise en œuvre de films multicouches céramiques par DLICVD à paroi chaude est mise en évidence par l’élaboration de revêtements multicouches HfC/SiC à 750 °C, sous pression partielle d’un mélange de gaz vecteur N2/H2. Le contrôle du procédé permet une nano structuration de ces revêtements multicouches jusqu’à une bi-période de 100 nm (empilement de 100 couches d’environ 50 nm chacune). La stabilité thermique de ces architectures et des tests préliminaires de résistance à l’oxydation à haute température des films de SiC et HfC/SiC sont discutés
Ceramic coatings are made from metalorganic precursors by a chemical vapour deposition process assisted by pulsed liquid injection (DLICVD). Chromium carbide (CrCx) films are grown in a tubular hot wall reactor from a solution of bis(benzene)chromium in toluene under partial pressure of nitrogen at 475 °C (total pressure set at 50 Torr). Bonding layers are useful on metallic components, such as steels and alloys, with non-oxide ceramic films such as CrCx, to that purpose metallic chromium (Cr) and mixed carbides Cr-Si-C have been made by DLICVD. Furthermore, adding a chlorinated or sulfur based additive (e.g. hexachlorobenzene or thiophenol) in the BBC/toluene solution allows depositing metallic chromium (Cr) at 475 °C. Moreover, using a precursor containing Si and Cr as tetrakis(trimethylsilylmethyl)-chromium in toluene leads to the deposition of Cr-Si-C mixed carbide. Silicon carbide films are made from two precursors (1,3-disilabutane and polysilylethylene) that have been injected either pure or diluted in toluene. A temperature range of 700 to 800 °C has been used under a partial pressure of nitrogen (total pressure of 50 Torr). SiC films are amorphous and contain a small quantity of hydrogen (hydrogen comes from precursor pyrolysis mechanism): a-SiC:H. Films are stoichiometric when pure precursors are injected, and quasi stoichiometric when precursors are diluted in toluene. As deposited coatings are amorphous and become nanocristalline (cubic SiC structure) after annealing at 1000 °C under vacuum. The influences of the solvent (toluene) on the composition, morphology and growth rate are discussed as a function of the chemical system and experimental conditions, in particular reactor gradient conditions such as temperature and precursors concentration in gas phase. Hafnium carbide films are also made using a solution of bis(cyclopentadiényl)diméthyl hafnium in toluene by the same process. Temperature is set to 750 °C and hydrogen partial pressure has been shown useful (total pressure of 50 Torr, 423 sccm of N2 and 77 sccm of H2). As-deposited films are C-rich HfCx and quasi amorphous. They become nanocristalline after annealing at 1000 °C under vacuum. Finally, ceramics multilayer HfC/SiC coatings were deposited by DLICVD at 750 °C under a partial pressure of a mixture of N2/H2. The process allows a good control of the multilayer nanostructure. Thermal stability and high temperature oxidation preliminary tests on SiC and HfC/SiC films are discussed
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Chen, De-Kang. "Flashing flow of refrigerant HFC-134a through a diabatic capillary tube." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq25924.pdf.

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Books on the topic "HFLC"

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Anderson, James W. The HFC guide book. [Lexington, KY: HCF Diabetes Foundation], 1987.

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(Firm), ICF Macro, ed. Namibia health facility census (HFC), 2009. Windhoek, Namibia: Ministry of Health and Social Services, 2011.

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Large, David. Broadband cable access networks: The HFC plant. 3rd ed. Boston: Morgan Kaufmann, 2008.

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Residential broadband networks: XDSL, HFC, and fixed wireless access. Upper Saddle River, NJ: Prentice Hall, 1998.

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Moore, Christopher Mark. Fluorine atom reactions and the photo-oxidation of HFC-134a. Birmingham: University of Birmingham, 1996.

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Video dialtone technology: Digital video over ADSL, HFC, FTTC, and ATM. New York: McGraw-Hill, 1995.

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Eckels, Steven J. In-tube evaporation and condensation of HFC-134a and CFC-12 with various lubricant mixtures. Ann Arbor, Mich: UMI Dissertation Services, 2002.

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World, Administrative Radio Conference for the Planning of the HF Bands Allocated to the Broadcasting Service (1987 Geneva Switzerland). Final acts of the World Administrative Radio Conference for the Planning of the HF Bands Allocated to the Broadcasting Service (HFBC-87), Geneva, 1987. Geneva: International Telecommunication Union, 1987.

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Toshiyuki, Kanakubo. Strain Hardening Cement Composites: Structural Design and Performance: State-of-the-Art Report of the RILEM Technical Committee 208-HFC, SC3. Dordrecht: Springer Netherlands, 2013.

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Hwang, du-Hyun Dwayne. Flow quality measurement based on stratification of flow in nitrogen gas-water and HFC-134a refrigerant-PAG oil two-phase flow systems. Ottawa: National Library of Canada, 2001.

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Book chapters on the topic "HFLC"

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Fiorentino, Giuseppe, Maurizia Lanza, Anna Annunziata, and Pasquale Imitazione. "The Role of HFNC." In Covid-19 Airway Management and Ventilation Strategy for Critically Ill Older Patients, 159–65. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55621-1_17.

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Chawla, Rajesh, and Subhash Todi. "High Flow Nasal Canula (HFNC)." In ICU Protocols, 35–43. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0898-1_4.

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Zapata, Daniel, David Wisa, Bushra Mina, and Maciej Walczyszyn. "NPPV vs. HFNC for Acute Respiratory Failure." In Noninvasive Ventilation in Sleep Medicine and Pulmonary Critical Care, 315–23. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42998-0_32.

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Hosoi, Youkichi, Naoki Kobayashi, and Takeshi Tsukada. "A Type-Based HFL Model Checking Algorithm." In Programming Languages and Systems, 136–55. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34175-6_8.

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Fan, Haibo, Nanda K. Ravala, Howard C. Wikle, and Bryan A. Chin. "HfC Structural Foams Synthesizing from Polymer Precursors." In Ceramic Transactions Series, 13–24. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118408391.ch2.

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Garcia, Manuel, Daniel F. Garcia, Victor G. Garcia, and Ricardo Bonis. "Traffic Model Characterization of an HFC Network." In Lecture Notes in Computer Science, 539–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45076-4_54.

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Pikrammenos, Giannis, and Leligou Helen-Catherine. "Performance Evaluation of Diffserv Driven HFC System." In Next Generation Networks. Networks and Services for the Information Society, 137–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-40019-2_12.

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Maginley, Ray. "Patient Care Issues in HFC Emissions Policy." In Non-CO2 Greenhouse Gases: Scientific Understanding, Control and Implementation, 477–83. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9343-4_73.

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McNaughton, D., C. Evans, and E. G. Robertson. "FT-IR Spectroscopy of the CFC Replacements HFC-152a and HFC-227ea in a Supersonic Jet Expansion." In Progress in Fourier Transform Spectroscopy, 543–46. Vienna: Springer Vienna, 1997. http://dx.doi.org/10.1007/978-3-7091-6840-0_134.

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Lo, Chih-Cheng, Hung-Chang Lai, and Wen-Shyen E. Chen. "An Adaptive Contention Period Control in HFC Networks." In Information Networking, 151–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45235-5_15.

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Conference papers on the topic "HFLC"

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Hafez, Ahmed Taimour, Mohamed A. Kamel, Peter T. Jardin, and Sidney N. Givigi. "Task assignment/trajectory planning for unmanned vehicles via HFLC and PSO." In 2017 International Conference on Unmanned Aircraft Systems (ICUAS). IEEE, 2017. http://dx.doi.org/10.1109/icuas.2017.7991407.

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Nakayama, Masashi, Haruo Sato, Yutaka Sugita, Seiji Ito, Masashi Minamide, and Yoshito Kitagawa. "Low Alkaline Cement Used in the Construction of a Gallery in the Horonobe Underground Research Laboratory." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40038.

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In Japan, any high level radioactive waste (HLW) repository is to be constructed at over 300 m depth below surface. Tunnel support is used for safety during the construction and operation, and shotcrete and concrete lining are used as the tunnel support. Concrete is a composite material comprised of aggregate, cement and various admixtures. Low alkaline cement has been developed for the long term stability of the barrier systems whose performance could be negatively affected by highly alkaline conditions arising due to cement used in a repository. Japan Atomic Energy Agency (JAEA) has developed a low alkaline cement, named as HFSC (Highly Fly-ash Contained Silicafume Cement), containing over 60 wt% of silica-fume (SF) and fly-ash (FA). HFSC was used experimentally as the shotcrete material in construction of part of the 140m deep gallery in the Horonobe Underground Research Laboratory (URL). The objective of this experiment was to assess the performance of HFSC shotcrete in terms of mechanics, workability, durability, and so on. HFSC used in this experiment is composed of 40 wt% OPC (Ordinary Portland Cement), 20 wt% SF, and 40 wt% FA. This composition was determined based on mechanical testing of various mixes of the above components. Because of the low OPC content, the strength of HFSC tends to be lower than that of OPC. The total length of tunnel using HFSC shotcrete is about 73 m and about 500 m3 of HFSC was used. The workability of HFSC shotcrete was confirmed in this experimental construction.
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"Short Course High Frequency Design For Communications." In Short Course High Frequency Design for Communications. IEEE, 1996. http://dx.doi.org/10.1109/hfdc.1996.864089.

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Larson, L. "DBS, VSAT, and the future." In Short Course High Frequency Design for Communications. IEEE, 1996. http://dx.doi.org/10.1109/hfdc.1996.864094.

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Nilpueng, Kitti, and Somchai Wongwises. "Flashing Flow Mechanisms of HFC-134a and HFC-410a Through Short-Tube Orifices." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44258.

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In this study, the flow mechanisms of HFC-134a and HFC-410A, including flow pattern, pressure distribution, temperature distribution, and mass flow rate inside short-tube orifice are presented and compared under the same working temperature. The test runs are performed at condenser temperature ranging between 35 and 45°C, evaporator temperature ranging between 2 and 12°C, and degree of subcooling ranging between 1 and 12 °C. The results show that the temperature distribution along the short-tube orifice obtained from HFC-410A is slightly higher than that obtained from HFC-134a. On the other hand, the pressure distribution between both refrigerants shows the large difference. It is also found that the tendency of mass flow rate obtained from HFC-134a almost coincides with those obtained HFC-410A as the operating conditions and short-tube orifice size are varied. However, the average mass flow rate of HFC-134a is slightly lower than that of HFC-410A.
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Dalkilic¸, Ahmet Selim, and Somchai Wongwises. "Comparison of Various Alternative Refrigerants for Vapour Compression Refrigeration Systems." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44267.

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Single-stage vapour compression refrigeration system was compared with an actual vapour compression cycle, single-stage process with internal heat exchanger, and a two-stage process with economiser using the refrigerants of HCFC-22, CFC-502 and their alternatives such as HFC-134a, HFC-32, HFC-152a, HFC-404A, HFC-407C, HFC-507, HFC-410A. A theoretical performance study on a cascade refrigeration system was performed using two refrigeration cycles connected through the heat exchanger in the middle working as the evaporator for the high pressurized cycle and condenser for the low pressurized cycle. Other performance study was performed using a two-stage cascade refrigeration system having low and high pressure compressors connected through the mixing chamber in the middle. The condensation temperatures were between 30 and 50 °C, evaporation temperatures were between −50 °C and 5 °C and heat exchanger and economiser temperatures were kept as constant for the comparisons. Some of the alternative refrigerants’ coefficients of performance values are found to be higher than their base traditional pure refrigerants. The effects of the main parameters of performance analysis such as refrigerant type, degree of subcooling, and superheating on the performance coefficient, refrigerant charge rate and volumetric refrigeration capacity are investigated for various operating conditions as case studies.
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Wielgat, Robert, Tomasz P. Zielinski, Tomasz Potempa, Agnieszka Lisowska-Lis, and Daniel Krol. "HFCC based recognition of bird species." In 2007 Signal Processing Algorithms, Architectures, Arrangements, and Applications (SPA 2007). IEEE, 2007. http://dx.doi.org/10.1109/spa.2007.5903313.

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Mackie, William A., Gerald G. Magera, and Josh M. Lovell. "Using HfC(210) and HfC(110) as high brightness electron sources." In 2016 IEEE International Vacuum Electronics Conference (IVEC). IEEE, 2016. http://dx.doi.org/10.1109/ivec.2016.7561779.

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Öztürk, Merve, Emine Göktepe, Ali Celen, Alican Çebi, Ahmet Selim Dalkılıç, and Somchai Wongwises. "Fundamental Basis and Application of Cold-Room Project Design: A Case Study of Frigoship." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17570.

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In this paper, a cold-room system in a frigoship was analyzed as a case study to demonstrate the application of the proposed model. The model was also evaluated in terms of the alteration of alternative refrigerants and insulation thickness of the cold rooms’ refrigeration system. The coefficients of performance (COP), refrigerant charge rates, and capacities of each component of the refrigeration system for the refrigerants CFC-12, HCFC-22 and their alternatives, such as HFC-134a, HFC-410a, HFC-404a, HFC-407c, and HFC-507 were determined by considering the effects of the main parameters of the performance analysis, such as refrigerant type, Based on the results of the energy analyses, all of the alternative refrigerants have a slightly lower COP and require higher compressor work than CFC-12 and HCFC-22 for condensation temperature of 40°C. The hunted fishes have an evaporation temperature of −25°C regarding with the preserved product in the case studies. Effects of isolation thickness of wall on evaporator capacity and sea water temperature on condenser are also investigated. Also variation capacity of system components such as evaporator, condenser and compressor with relative humidity of neighbor volume is studied.
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Hill, William, and Stella Papasavva. "Life Cycle Analysis Framework; A Comparison of HFC-134a, HFC-134a Enhanced, HFC-152a, R744, R744 Enhanced, and R290 Automotive Refrigerant Systems." In SAE 2005 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2005. http://dx.doi.org/10.4271/2005-01-1511.

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Reports on the topic "HFLC"

1

Haynes, W. M. Thermophysical properties of HFC-143a and HFC-152a. Quarterly report, 1 January--31 March 1994. Office of Scientific and Technical Information (OSTI), April 1994. http://dx.doi.org/10.2172/10147087.

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Haynes, W. M. Thermophysical properties of HFC-143a and HFC-152a. Quarterly report, October 1, 1993--December 31, 1993. Office of Scientific and Technical Information (OSTI), January 1994. http://dx.doi.org/10.2172/10142930.

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Kayser, R. F. Thermophysical properties of HFC-143a and HFC-152a. Quarterly report, 1 April 1993--30 June 1993. Office of Scientific and Technical Information (OSTI), July 1993. http://dx.doi.org/10.2172/10143468.

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Haynes, W. M. Thermophysical properties of HFC-143a and HFC-152a. Quarterly report, 1 July 1993--30 September 1993. Office of Scientific and Technical Information (OSTI), October 1993. http://dx.doi.org/10.2172/10108097.

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Haynes, W. M. Thermophysical properties of HFC-143a and HFC-152a. Final report, April 1, 1993--June 30, 1994. Office of Scientific and Technical Information (OSTI), July 1994. http://dx.doi.org/10.2172/10191933.

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Domanski, Piotr A., Mark O. McLinden, Ian H. Bell, and Gregory T. Linteris. Low-GWP alternative refrigerant blends for HFC-134a. Gaithersburg, MD: National Institute of Standards and Technology, September 2018. http://dx.doi.org/10.6028/nist.tn.2014.

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Goetzler, W., L. Bendixen, and P. Bartholomew. Risk assessment of HFC-32 and HFC-32/134a (30/70 wt.%) in split system residential heat pumps. Final report. Office of Scientific and Technical Information (OSTI), April 1998. http://dx.doi.org/10.2172/607494.

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Bennett, M. V., and J. M. Bennett. Aircraft Engine/APU Fire Extinguishing System Design Model (HFC-125). Fort Belvoir, VA: Defense Technical Information Center, May 1997. http://dx.doi.org/10.21236/ada373212.

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Gunsel, Selda, and Michael Pozebanchuk. Elastohydrodynamic Lubrication with Polyolester Lubricants and HFC Refrigerants, Final Report, Volume 1. Office of Scientific and Technical Information (OSTI), April 1999. http://dx.doi.org/10.2172/8212.

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Gunsel, Selda, and Michael Pozebanchuk. Elastohydrodynamic Lubrication with Polyolester Lubricants and HFC Refrigerants, Final Report, Volume 2. Office of Scientific and Technical Information (OSTI), April 1999. http://dx.doi.org/10.2172/8217.

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