Relevant bibliographies by topics / H. nana

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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 'H. nana'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "H. nana"

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Gabriele, F., D. Wakelin, and C. Palmas. "Specific cross-immunity between Hymenolepis nana and H. diminuta: immunization with heterologous and homologous light infections." Journal of Helminthology 62, no. 2 (June 1988): 115–23. http://dx.doi.org/10.1017/s0022149x00011342.

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ABSTRACTThe consequences of previous and concurrent infection with two related species of cestodes, Hymenolepis nana and H. diminuta, were studied in CD1 mice. A H. diminuta infection strongly affected the establishment and the survival of a secondary H. nana egg or cyst infection administered 30 days later. An infection of 20 H. nana eggs strongly protected against a 5-cyst H. diminuta challenge, whereas an infection of 10 H. nana cysts was ineffective; 20 H. nana eggs also protected against a challenge with 5 cysts of H. diminuta administered 5 days later. No effects were observed in either parasite during a concurrent infection established by administration of cysts. An H. nana egg-infection was unable to affect the establishment of a secondary H. nana cyst-infection given 1 month later; however a significant decrease in growth was found. Similar results were found when a primary H. nana egg-infection was followed 5 days later by the homologous cyst-infection. But an infection with 5 H. nana cysts was unable to protect against a homologous challenge of 5 cysts or 20 eggs. The reciprocal cross immunity between the heterologous parasites and the failure of protection of homologous challenges are discussed in relation to light infections.
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Sataeva, T. P., S. A. Kutya, S. N. Smirnova, and V. V. Kazakova. "A historical review of the study on biology of the dwarf tapeworm Hymenolepis nana." Russian Journal of Parasitology 12, no. 1 (February 27, 2018): 18–26. http://dx.doi.org/10.31016/1998-8435-2018-12-1-18-26.

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The purpose of the research: to submit a review of national and foreign literature on biological research of Hymenolepis nana. Materials and methods. Papers on morphology and biology of H. nana (starting from the first discovery of H. nana in 1851 by German parasitologist T. Bilharz until the present moment) written by 26 native and 11 foreign authors served as research material. When analyzing the literature, special attention was paid to the results of the morphological study and development cycle of H. nana taking into account the developmental stages of cestodes. Results and discussion. Specific data on morphology of H. nana and pictures of scolex and proglottids of the dwarf tapeworm using scanning electronic microscopy were provided. Structure of H. nana eggs was described in detail. Most papers are dedicated to the study of biological features of development. Sometimes, H. nana is reproduced by budding (passing through the following development cycle: megalospheres, metamers, invagination, scolexogenesis, larval cysts). Eggs were found in animals’ feces 17-18 days after infestation. H. nana lives in human body for several years, and sometimes 20-38 years. Issues related to the species identity of H. nana and H. fraternal, and mechanisms of transmission and prevalence of infection are discussed. Prevalence of hymenolepiasis in different countries depends not on climate conditions but on the degree of population density. Contamination of hands is an important factor influencing the frequency of hymenolepiasis autoinvasion in patients. The role of rodents as a source of H. nana infection is not essential.
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Menin, Marcelo, Denise de C. Rossa-Feres, and Ariovaldo A. Giaretta. "Resource use and coexistence of two syntopic hylid frogs (Anura, Hylidae)." Revista Brasileira de Zoologia 22, no. 1 (March 2005): 61–72. http://dx.doi.org/10.1590/s0101-81752005000100008.

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The objectives of this study were to measure and compare niche breadth and overlap of males of Hyla nana Boulenger, 1889 and Hyla sanborni Schmidt, 1944 in three neighboring ponds. The measured niche dimensions were seasonal occurrence, call site, and diet. The reproductive season of H. sanborni was longer in permanent ponds, whereas H. nana had a longer reproductive season in the temporary pond. Call site characteristics were similar for both species, however H. sanborni called from higher perches than H. nana. Diptera (Nematocera) were the most consumed item by both species in the three ponds but, in general, H. nana ingested larger prey than H. sanborni. For both species, the consumption of prey types was correlated with the availability in the environment. The multidimensional overlap between H. nana and H. sanborni was higher in the permanent ponds than the temporary pond, in which H. sanborni was rare. These species differed in abundance among ponds, consumed prey of different sizes, and probably fed in different time periods. Moreover, the data obtained suggest that structural differences in the ponds may modify the dynamics of resource partitioning between the two species. Beside the great overlap found in the major niche dimensions analyzed the detected differences may be great enough to allow their coexistence.
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Novak, M., W. R. Taylor, and E. Pip. "Interspecific variation of isoenzyme patterns in four Hymenolepis species (Cestoda)." Canadian Journal of Zoology 67, no. 8 (August 1, 1989): 2052–55. http://dx.doi.org/10.1139/z89-292.

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Starch gel protein electrophoresis of mass homogenates of Hymenolepis microstoma, H. diminuta, H. citelli, and H. nana revealed a large degree of isoenzymic variation in the 11 enzyme systems tested in these species. Whereas the majority of the 68 bands found in total were species specific, 23 were shared between at least two species, and 1 band was common to all four species. Cluster analysis suggested that H. microstoma is the most dissimilar of the four species and may have diverged the earliest from the common ancestral line, whereas H. citelli and H. nana were the two most similar species and may have diverged more recently. Hymenolepis diminuta was intermediate in position, but demonstrated closer affinities with H. citelli and H. nana than with H. microstoma.
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Resnhaleksmana, Ersandhi, Wayan Tunas Artama, Mahardika Agus Wijayanti, and Fihiruddin Fihiruddin. "Molecular genotypes analysis of Cryptosporidium and Hymenolepis in rats on Lombok Island, Indonesia." July-December 6, no. 2 (2020): 123–27. http://dx.doi.org/10.14202/ijoh.2020.123-127.

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Background and Aim: Cryptosporidium parvum and Hymenolepis nana are intestinal parasites that are commonly found in the unclean environment. Their presence in rats promotes the transmission of the cryptosporidiosis and hymenolepiasis to humans or animals nearby. This study aimed to determine the molecular characteristics of C. parvum and H. nana and their distribution in rats on Lombok Island. Materials and Methods: C. parvum and H. nana were investigated in 50 rats from Lombok Island. The molecular-parasitological technique used was polymerase chain reaction and sequencing method. Results: From 50 samples of rats' stool from 10 locations on Lombok Island, 8% (4/50) of C. parvum was detected molecularly with an 18S rRNA gene and 2% (1/50) of H. nana with COX 1 gene. Phylogenetic analysis indicated that C. parvum carrying rats on Lombok Island have a genetic relationship with C. parvum with Obi7 isolates, Japan and H. nana has a genetic relationship with Rodentolepis nana identified with Hn-VT isolates, India. Conclusion: The highest incidence of parasites was found in rats that were caught in the urban areas of Lombok Island, West Nusa Tenggara, Indonesia. Immediately, public health programs in these types of contaminated areas should receive priority attention to prevent further transmission of the parasites from animals to human beings.
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OKAMOTO, M., T. AGATSUMA, T. KUROSAWA, and A. ITO. "Phylogenetic relationships of three hymenolepidid species inferred from nuclear ribosomal and mitochondrial DNA sequences." Parasitology 115, no. 6 (December 1997): 661–66. http://dx.doi.org/10.1017/s0031182097001741.

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Three hymenolepidid tapeworms, Hymenolepis diminuta, H. nana and H. microstoma, are commonly maintained in laboratory rodents and used in many experimental model systems of tapeworm infections. We examined partial sequences from the mitochondrial cytochrome c oxidase subunit 1 (CO1) gene and nuclear ribosomal internal transcribed spacer 2 (ITS2) sequences to infer phylogenetic relationships of the 3 hymenolepidid species. Parts of the CO1 gene and ITS2 were amplified by PCR and sequenced directly. The CO1 gene sequence obtained was the same in length (391 bp) among all specimens. In the case of ITS2, however, several insertions and deletions were detected (671–741 bp) not only among species but also between an American isolate and a Japanese isolate of H. diminuta. Percentage nucleotide differences between H. diminuta and H. microstoma, or H. diminuta and H. nana were 16·6–18·2% for the CO1 gene and 21·3–22·9% for ITS2. The differences in both sequences between H. microstoma and H. nana were about 14%. Phylogenetic trees inferred from both of the nucleotide sequences showed similar topology, and suggest that H. diminuta may have diverged from the common ancestral line the earliest, and that H. nana is closer to H. microstoma than to H. diminuta.
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Singh, Rahul Pratap, Babul Chandra Roy, Asish Kumer Debnath, Sultana Fizun Nahar, and Md Hasanuzzaman Talukder. "Hymenolepiasis in Rats (Rattus Norvegicus) With Its Zoonotic Potential in Mymensingh District of Bangladesh." Research in Agriculture Livestock and Fisheries 7, no. 2 (September 1, 2020): 255–59. http://dx.doi.org/10.3329/ralf.v7i2.48865.

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Hymenolepis nana and Hymenolepis diminuta are globally widespread zoonotic cestodes and rats act as main reservoir host of these cestodes. Wild brown rats (Rattus norvegicus) are the most common rats usually live in human’s dwellings, especially in areas of low socioeconomic status and low levels of hygiene practices. Since there is scarcity of information of the hymenolepiasis in rats in Bangladesh, therefore the aim of this study was to determine the incidence of H. nana and H. diminuta in wild and laboratory rats. A total of 60 rats were collected from the residential areas of rural villages of Mymensingh sadar and the Bangladesh Agricultural University campus and 10 were from the laboratory of the Department of Parasitology, BAU, Mymensingh. The rats were killed by cardiac puncture and tapeworms were collected and subsequently were subjected for morphological study under the stereomicroscope. Two species of cestodes, namely H. nana and H. diminuta were detected showing the overall prevalence of 23.3 % and 35 % respectively. The high prevalence of H. nana (30%) was determined in rats captured from the rural village areas whereas H. diminuta was found more prevalent (60%) in the laboratory rats. The result of the current study suggests that H. nana infection in rural village areas may act as a risk factor for the zoonotic transmission of hymenolepiasis to human in Bangladesh. Res. Agric., Livest. Fish.7(2): 255-259, August 2020
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Ito, Akira, Kazuo Onitake, Junko Sasaki, and Tsuyoshi Takami. "Hymenolepis nana: Immunity against oncosphere challenge in mice previously given viable or non-viable oncospheres of H. nana, H. diminuta, H. microstoma and Taenia taeniaeformis." International Journal for Parasitology 21, no. 2 (April 1991): 241–45. http://dx.doi.org/10.1016/0020-7519(91)90015-y.

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Al-Mekhlafi, H. M. "The neglected cestode infection: Epidemiology of Hymenolepis nana infection among children in rural Yemen." Helminthologia 57, no. 4 (November 19, 2020): 293–305. http://dx.doi.org/10.2478/helm-2020-0038.

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SummaryHymenolepis nana is the most common cestode reported in humans worldwide. It is prevalent among children in the tropics and subtropics, particularly in rural poor communities where sanitation is inadequate or lacking. This cross-sectional study aims to determine the prevalence and significant risk factors of H. nana infection among children in rural Yemen. Faecal samples were collected from 498 children and screened for intestinal parasites by using wet mount, formalin-ether concentration and Kato–Katz techniques. A pretested questionnaire was used to collect demographic, socioeconomic, housing condition, and personal hygiene information. Overall, 77.5 % (386/498) of the children were found to be infected by at least one intestinal parasite species. The overall prevalence of H. nana was 17.5 % (87/498). Multivariate analysis confirmed that an age of < 6 years (adjusted odds ratio [AOR] = 4.28; 95 % (confidence interval [CI] = 2.04, 8.98), presence of other family members infected with H. nana (AOR = 2.48; 95 % CI = 1.45, 4.24), living in the highlands (AOR = 2.87; 95 % CI = 1.56, 5.26), living in a house without improved toilet facilities (AOR = 2.19; 95 % CI = 1.23, 3.88), not washing vegetables before consumption (AOR = 2.11; 95 % CI = 1.06, 4.19), and not washing hands after defecation (AOR = 1.88; 95 % CI = 1.08, 3.27) were the key factors significantly associated with H. nana infection among the studied children. In conclusion, H. nana is prevalent among children in rural Yemen, particularly among preschool-aged children. Thus, an integrated and effective programme to control intestinal parasitic infections should include preschool-aged children. Such a programme should focus on providing health education on hygienic practices, providing adequate sanitation and improved sources of drinking water, and screening and treating other infected family members.
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Maki, Jun, and Toshio Yanagisawa. "Infectivity of Hymenolepis nana eggs from faecal pellets in the rectum of mice." Journal of Helminthology 61, no. 4 (December 1987): 341–45. http://dx.doi.org/10.1017/s0022149x00010270.

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ABSTRACTThe infectivity of Hymenolepis nana eggs from faecal pellets in the rectum of mice was compared with that of the eggs in gravid proglottids of adult H. nana and with that of the eggs in excreted faecal pellets to find out a simple method for collecting H. nana eggs of high infectivity to mice. Eggs from faecal pellets in the rectum showed higher infectivity than those from gravid proglottids and as high infectivity as those from gravid proglottids selected by a watch-glass rotation technique. Eggs in faecal pellets in the rectum did not lose infectivity until 4 h after they were excreted and exposed to the air at room temperature (27–28°C) with relative humidity of 35–40%. However, the eggs lost infectivity significantly 17 h after excretion onwards.
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Dissertations / Theses on the topic "H. nana"

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Jimenez-Guerra, Francisco. "Prevalence of, and risk factors for, Helicobacter pylori infection and its effect on growth of children in Mexico." Thesis, London School of Hygiene and Tropical Medicine (University of London), 1999. http://researchonline.lshtm.ac.uk/4649359/.

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Helicobacter pylori (H. pylori) infection causes achlorydria, depressed gastric acid barrier, impaired immune response and is suspected in bacterial overgrowth and diarrhoea. These features of the infection are known to cause significant malabsorption of nutrients and impairment of linear growth in children. The prevalence of H. pylori infection in children is known to be much higher in developing countries, especially among the lower socio-economic groups. The true prevalence of infection in urban children in Mexico and its impact on their growth are largely unknown. This study examined the prevalence of H. pylori infection in school children from an urban area in Northwest Mexico and attempted to identify the risk factors that predispose individuals to infection in childhood; as well as to relate the presence of this infection to growth of children. The cross-sectional study was conducted in 1997/98 in the poorest socio-economic sectors of the city of Hermosillo, Sonora, among 178 children aged 9 and 10 years. H. pylori status was determined in children by the 13C-urea breath test. Anthropometric (weight and height) and haemoglobin measurements along with analysis of faecal samples and a 24-hour dietary recall were carried out in each child. Family sociodemographic/socio-economic status and living conditions data were elicited from parents by interview via structured questionnaires. The overall prevalence rate of H. pylori infection for the children in Hermosillo as determined by this study was 47.1%. The findings indicate that rural-born father, number of siblings, the type of main water supply (one tap in the yard) and the sharing of bed by the study child are important risk factors for acquiring the H. pylori infection. A borderline significant but small effect of H. pylori infection on height for-age was observed in this study. H. pylori infection was found to be positively highly associated with Hymenolepis nana. No differences in mean energy, protein and iron intakes between H. pylori positive and negative children were observed. However, significant differences in the mean energy, protein and iron intakes were observed between boys and girls. H. pylori infection and enteric parasites were not significantly correlated with the presence of anaemia.
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La, Torre Valentina. "Analisi spettroscopica LBT della galassia nana DDO 68." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Lo scenario cosmologico LCDM prevede che si formino prima gli aloni di materia oscura di piccola massa e in seguito, tramite merging, aloni più massicci. In questo scenario gerarchico di formazione delle strutture, anche le galassie più massicce si sarebbero formate per continue aggregazioni di sistemi più piccoli, formatisi per primi. Ai fini di comprendere meglio la formazione e l'evoluzione delle strutture agli inizi dell'Universo, è di grande importanza lo studio delle galassie nane star-forming (irregolari e blu compatte), povere di metalli e ricche di gas. Lo scopo di questo lavoro è studiare la galassia star-forming DDO 68, una nana blu compatta ed estremamente povera di metalli, situata nel vuoto Lynx-Cancer, nell'Universo locale. Recenti osservazioni potrebbero costituire la prima prova osservativa di processi di merging gerarchico in atto su piccole scale di massa galattica. Per confermare o meno le evidenze di tali interazioni multiple in atto in questa galassia, abbiamo usufruito di nuove osservazioni spettroscopiche delle regioni H II di DDO 68, effettuate nella notte del 21 Febbraio 2017 con MODS1 e MODS2 Multi-Object Double Spectrographs, montati su LBT. Dai dati abbiamo derivato le velocità radiali e le abbondanze chimiche per ciascuna regione H II osservata; dal nostro studio è emersa una differenza in metallicità tra le regioni H II della coda, della testa e del corpo centrale della galassia. Questo potrebbe essere un segno di attività di merging in atto tra un corpo meno metallico, la coda, e uno relativamente più ricco di metalli, il corpo centrale. Potrebbe trattarsi anche di un sistema non interagente e la differenza in metallicità potrebbe anche essere spiegata con un gradiente di metallicità. Rimane il fatto che le nostre osservazioni confermano per DDO68 metallicità estremamente basse, tali da renderla un outlier nella relazione luminosità-metallicità, rendendola un probabile sistema in fase di merging.
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Valladares, Heredia Jhonny Alberto. "“Prevalencia de enteroparásitos en niños de 8 a 13 años de edad de la Institución Educativa N° 6041 “Alfonso Ugarte” del distrito de San Juan de Miraflores”." Bachelor's thesis, Universidad Ricardo Palma, 2016. http://cybertesis.urp.edu.pe/handle/urp/699.

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Las enteroparasitosis intestinales constituyen un problema de salud pública en Perú, debido a que estos parásitos pueden ingresar al organismo por vía oral y hábitos higiénico-sanitarios deficientes que facilitan su transmisión y conservación. Cuando la carga de dichos parásitos es considerablemente alta o se acompaña de alteraciones en la inmunidad del hospedero, se pueden producir complicaciones que comprometen seriamente la salud del paciente. Sabemos que el control farmacológico de las parasitosis es efectivo y seguro. No obstante, sin autocuidado y mantenimiento sostenible de buenas condiciones higiénico-sanitarias, no es posible su erradicación. Considerando lo mencionado anteriormente, desarrollaré la presente investigación en una población escolar de la Institución Educativa N° 6041 “Alfonso Ugarte” del distrito San Juan de Miraflores para determinar la prevalencia de parasitosis intestinales. Se eligió una muestra representativa conformada de 116 niños de 8 a 13 años. Las muestras fecales obtenidas fueron analizadas utilizando: examen macroscópico, método directo, método de Parodi Alcaraz y test de Graham. El 85.3% de los alumnos examinados resultaron parasitados. La incidencia parasitaria fue mayor en mujeres (86.8%) comparado a los hombres (83.6%). La frecuencia parasitaria de acuerdo al Monoparasitismo de los grupos taxonómicos fueron 35.3% del Phylum Amoebozoa, 3.4% del Phylum Metamonada, 3.4% del Phylum Platyhelminthes, 0.9% del Phylum Bigyra y 0.9% del Phylum Nematoda, con las especies Entamoeba coli, Giardia lamblia, Hymenolepis nana, Blastocystis hominis y Enterobius vermicularis, respectivamente. La mayor frecuencia correspondiente al Biparasitismo fue la asociación de los Phyla Metamonada y Amoebozoa con 32.8%. La mayor frecuencia correspondiente al Triparasitismo fue la asociación de los Phyla Metamonada, Amoebozoa y Platyhelminthes con 1.7%. The intestinal enteroparasites constitute a public health problem in Peru, due to these parasites can enter the body by mouth and hygienic habits-poor health that facilitate its transmission and conservation. When the burden of such parasites is considerably high or is accompanied by alterations in the immunity of the host, it can produce complications which seriously compromise the health of the patient. We know that the pharmacological control of the parasitosis is effective and safe. However, self-care and sustainable maintenance of good hygienic and sanitary conditions, it is not possible to its eradication. Considering the above, I will develop this research in a school population of the Educational Institution N° 6041 "Alfonso Ugarte" of the district San Juan de Miraflores to determine the prevalence of intestinal parasitism. I chosen a representative sample consisted of 116 children 8 to 13 years old. Stool samples obtained were analyzed using: macroscopic examination, direct method, Parodi Alcaraz’s method and Graham’s test. The 85.3% of the students examined were parasitized. The parasitic incidence was higher in women (86.8%) compared to men (83.6%). The frequency of parasites according the Monoparasitism of taxonomic group was 35.3% of the Phylum Amoebozoa, 3.4% of the Phylum Metamonada, 3.4% of the Phylum Platyhelminthes, 0.9% of the Phylum Bigyra and 0.9% of the Phylum Nematoda, with the species Entamoeba coli, Giardia lamblia, Hymenolepis nana, Blastocystis hominis and Enterobius vermicularis, respectively. The highest frequency corresponding the Biparasitism was the association of the Phyla Metamonada and Amoebozoa with 32.8%. The highest frequency corresponding the Triparasitismo was the association of the Phyla Metamonada, Amoebozoa and Platyhelminthes with 1.7%.
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Jung, Mi-Hee. "Solubility studies on the NaAlO₂-NaNO₃-H₂O system." Master's thesis, Mississippi State : Mississippi State University, 2005. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.

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Ishchenko, Olga. "Elaboration of plasmonic nano-composites and study of their specific catalytic activities." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAF042/document.

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L’objective est d’améliorer l’activité photocatalytique de TiO2 sous irradiations UV et Visible. Pour contourner les limites de TiO2 intrinsèque nous envisageons une fabrication de nanocomposite plasmonique à base de nanofils de TiO2 périodiquement organisés et assemblés avec des nanoparticules plasmoniques. Pour la fabrication des nanofils de TiO2 mécaniquement stables, deux approches ont été réalisées. La première approche est basée sur la croissance sélective en phase vapeur, la deuxième approche consiste en l’utilisation d’un moule de membranes AAO et d’un dépôt de films conformes par ALD. En parallèle les films de TiO2déposés par ALD sont assemblés avec les nanoparticules plasmoniques d’or. Les différentes architectures de TiO2 sont valorisées par des tests photocatalytiques (UV et Visible) sur les polluants modèles. Une nouvelle approche de la fabrication des films mesoporeux d’H-TiO2 avec efficacité photocatalytique à la fois sous irradiation UV et Visible est développée
The objective of this thesis is to improve the photo-response of well-known photocatalytic material such as TiO2, which is usually only active in the UV range. The basic idea is to assemble several approaches within one device to improve the photocatalytic properties: fabrication of periodically-organised TiO2 nanostructures and their assembly with plasmonic nanoparticles. Two fabrication strategies were investigated for these purposes. The first approach consists of selective vapour phase growth. The second approach implements the use of an AAO template. In parallel, TiO2 films deposited by ALD and assembled with plasmonic gold nanoparticles are investigated. The photocatalytic measurements on various TiO2 architectures were performed in both irradiation ranges UV and Vis. A new fabrication approach of mesoporous H-TiO2 films was developed giving promising results of photocatalytic efficiency improvement in both UV and Visible ranges
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Sonmez, Haci Mehmet. "Negotiation Techniques In Turkish Foreign Policy: Wto Doha Round Negotiation Process And Its Implications For Turkey." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/2/12612094/index.pdf.

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This thesis analyzes World Trade Organization Doha Round negotiation process and its implications for Turkey&rsquo
s relations with its neighbors. The thesis mainly focuses on two pillars of negotiating package, namely agricultural and non-agricultural products (NAMA) negotiations. Both segments of negotiations have different dimensions due to Turkey&rsquo
s regional and multilateral obligations. As a developing country, Turkey&rsquo
s position in agriculture is more in line with other developing countries
in NAMA however it defends more liberal policies because of its Customs Union with the EU. Results of Doha Round will affect not only Turkey but also Turkey&rsquo
s neighbors and these effects will be more dramatic in some of them. Chapter I is Introduction Chapter. Chapter II evaluates Doha Round in detail
Chapters III and IV examine agriculture and NAMA negotiations and their implications for Turkey. Chapter V evaluates other negotiation topics such as services, trade facilitation, environment and rules. Chapter VI analyzes Turkey&rsquo
s Customs Union with the EU and its bilateral trade arrangements. The last Chapter is the Conclusion.
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Vinogradov, Nikolay. "Controlling Electronic and Geometrical Structure of Honeycomb-Lattice Materials Supported on Metal Substrates : Graphene and Hexagonal Boron Nitride." Doctoral thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-194089.

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The present thesis is focused on various methods of controlling electronic and geometrical structure of two-dimensional overlayers adsorbed on metal surfaces exemplified by graphene and hexagonal boron nitride (h-BN) grown on transition metal (TM) substrates. Combining synchrotron-radiation-based spectroscopic and various microscopic techniques with in situ sample preparation, we are able to trace the evolution of overlayer electronic and geometrical properties in overlayer/substrate systems, as well as changes of interfacial interaction in the latter.It is shown that hydrogen uptake by graphene/TM substrate strongly depends on the interfacial interaction between substrate and graphene, and on the geometrical structure of graphene. An energy gap opening in the electronic structure of graphene on TM substrates upon patterned adsorption of atomic species is demonstrated for the case of atomic oxygen adsorption on graphene/TM’s (≥0.35 eV for graphene/Ir(111)). A non-uniform character of adsorption in this case – patterned adsorption of atomic oxygen on graphene/Ir(111) due to the graphene height modulation is verified. A moderate oxidation of graphene/Ir(111) is found largely reversible. Contrary, oxidation of h-BN/Ir(111) results in replacing nitrogen atoms in the h-BN lattice with oxygen and irreversible formation of the B2O3 oxide-like structure.      Pronounced hole doping (p-doping) of graphene upon intercalation with active agents – halogens or halides – is demonstrated, the level of the doping is dependent on the agent electronegativity. Hole concentration in graphene on Ir(111) intercalated with Cl and Br/AlBr3 is as high as ~2×1013 cm-2 and ~9×1012 cm-2, respectively.     Unusual periodic wavy structures are reported for h-BN and graphene grown on Fe(110) surface. The h-BN monolayer on Fe(110) is periodically corrugated in a wavy fashion with an astonishing degree of long-range order, periodicity of 2.6 nm, and the corrugation amplitude of ~0.8 Å. The wavy pattern results from a strong chemical bonding between h-BN and Fe in combination with a lattice mismatch in either [11 ̅1] or [111 ̅] direction of the Fe(110) surface. Two primary orientations of h-BN on Fe(110) can be observed corresponding to the possible directions of lattice match between h-BN and Fe(110).     Chemical vapor deposition (CVD) formation of graphene on iron is a formidable task because of high carbon solubility in iron and pronounced reactivity of the latter, favoring iron carbide formation. However, growth of graphene on epitaxial iron films can be realized by CVD at relatively low temperatures, and the formation of carbides can be avoided in excess of the carbon-containing precursors. The resulting graphene monolayer creates a periodically corrugated pattern on Fe(110): it is modulated in one dimension forming long waves with a period of ~4 nm parallel to the [001] direction of the substrate, with an additional height modulation along the wave crests. The novel 1D templates based on h-BN and graphene adsorbed on iron can possibly find an application in 1D nanopatterning. The possibility for growing high-quality graphene on iron substrate can be useful for the low-cost industrial-scale graphene production.
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Boehm, Benedikt Ezra Nathanael [Verfasser], Christian H. [Akademischer Betreuer] Back, and Jascha [Akademischer Betreuer] Repp. "Magnetic domain walls and domains in thin films, nano stripes and 3D structures / Benedikt Ezra Nathanael Boehm ; Christian H. Back, Jascha Repp." Regensburg : Universitätsbibliothek Regensburg, 2017. http://d-nb.info/1149366540/34.

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Kir, Onur [Verfasser], Wolfgang H. [Akademischer Betreuer] Binder, and Guido [Akademischer Betreuer] Kickelbick. "Surface initiated polymerization of isoprene from silica nano- and glass particles via living anionic and controlled radical polymerization techniques / Onur Kir. Betreuer: Wolfgang H. Binder ; Guido Kickelbick." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2013. http://d-nb.info/1050977734/34.

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Acharya, Rajendra. "Synthesis, Characterization and Photophysical Studies of Porphyrin and N-Confused Porphyrin Derivatives and Self-assembled Nano-Morphologies." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1376061548.

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Books on the topic "H. nana"

1

Bedard, John. Water processor and oxygen generation assembly: Contract H-29387D, final report. Windsor Locks, Conn: Hamilton Standard, 1997.

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H-Mode Workshop (4th 1993 Ibaraki, Japan). Papers from the 4th H-Mode Workshop (IAEA Technical Committee Meeting on H-Mode Physics),Naka, Ibaraki, Japan, 15-17 November 1993. Edited by Itoh S. I and International Atomic Energy Authority. Bristol: IOP Publishing, 1994.

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Inc, BIEC International, and Indonesia. Direktorat Bina Program Penyiapan Pemukiman., eds. Phase IIIA, final report, Nanga Merakai WPP XVIIa SKP H: Phase IIIA studies of transmigration settlements development in West Kalimantan (package C). [Jakarta?]: China Engineering Consultants, Inc. in association with BIEC International Inc., 1988.

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Kottmann, Nora, and Cornelia Reiher, eds. Studying Japan. Nomos Verlagsgesellschaft mbH & Co. KG, 2020. http://dx.doi.org/10.5771/9783845292878.

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Studying Japan is the first comprehensive guide on qualitative methods, research designs and fieldwork in social science research on Japan. More than 70 Japan scholars from around the world provide an easy-to-read overview on qualitative methods used in research on Japan’s society, politics, culture and history. The book covers the entire research process from the outset to the completion of a thesis, a paper, or a book. The authors provide basic introductions to individual methods, discuss their experiences when applying these methods and highlight current trends in research on Japan. The book serves as a foundation for a course on qualitative research methods and is, but can also be used as a reference for all researchers in Japanese Studies, the Social Sciences and Area Studies. It is an essential reading for students and researchers with an interest in Japan! With contributions by: Chapter: Celeste L. Arrington, David Chiavacci, Andreas Eder-Ramsauer, James Farrer, Roger Goodman, Carola Hommerich, Nora Kottmann, Gracia Liu-Farrer, Levi McLaughlin, Chris McMorran, Caitlin Meagher, Kaori Okano, Theresia B. Peucker, Cornelia Reiher, Katja Schmidtpott, Christian Tagsold, Katrin Ullmann, Gabriele Vogt, Cosima Wagner, Akiko Yoshida and Urs Matthias Zachmann. Essays: Shinichi Aizawa, Noor Albazerbashi, Daniel P. Aldrich, Allison Alexy, Verena Blechinger-Talcott, Christoph Brumann, Genaro Castro-Vázquez, David Chiavacci, Jamie Coates, Emma E. Cook, Laura Dales, James Farrer, Flavia Fulco, Isaac Gagné, Nana Okura Gagné, Sonja Ganseforth, Sheldon Garon, Julia Gerster, Christopher Gerteis, Markus Heckel, Steffen Heinrich, Joy Hendry, Swee-Lin Ho, Barbara Holthus, Katharina Hülsmann, Jun Imai, Hanno Jentzsch, Aya H. Kimura, Emi Kinoshita, Susanne Klien, Gracia Liu-Farrer, Patricia L. Maclachlan, Wolfram Manzenreiter, Kenneth M. McElwain, Lynne Y. Nakano, Scott North, Robin O’Day, Robert J. Pekkanen, Saadia M. Pekkanen, Isabelle Prochaska-Meyer, Nancy Rosenberger, Richard J. Samuels, Annette Schad-Seifert, Katja Schmidtpott, Tino Schölz, Kai Schulze, Kay Shimizu, Karen Shire, David H. Slater, Celia Spoden, Brigitte Steger, Nicolas Sternsdorff-Cisterna, Christian Tagsold, Akiko Takeyama, Daisuke Watanabe, Daniel White, Anna Wiemann and Tomiko Yamaguchi. Foreword: Ilse Lenz and Franz Waldenberger.
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Buku acara Gema Nada Takbir Akbar Nasional, 1422 H bersama presiden Republik Indonesia: Jakarta, Silang Monas, 15 Desember 2001. [Jakarta]: Takbir Akbar Nsional 1422 H/2001, 2001.

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Book chapters on the topic "H. nana"

1

Jin, Hai Yun, Guan Jun Qiao, Zong Ren Peng, and Ji Qiang Gao. "Machinability and Microstructure of SiC/h-BN Nano-Composites." In Eco-Materials Processing and Design IX, 45–48. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-472-3.45.

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Babuška, I. "The p and h-p Versions of the Finite Element Method: The State of the Art." In ICASE/NASA LaRC Series, 199–239. New York, NY: Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4612-3786-0_10.

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Chen, Wen-Hua, Shing-Jong Huang, Ayyamperumal Sakthivel, S. P. Naik, Anthony S. T. Chiang, and Shang-Bin Liua. "Acidity Characterization of Nanocyrstalline H-ZSM-5 Zeolites by 31P MAS NMR of Adsorbed Phosphine Oxide Probes." In Nano-Architectured and Nanostructured Materials, 127–34. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527606017.ch17.

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Ulm, F. J., and M. Vandamme. "Probing Nano-structure of C-S-H by Micro-mechanics Based Indentation Techniques." In Nanotechnology in Construction 3, 43–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00980-8_5.

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Rakotondrabe, Micky. "Modeling and Robust H ∞ Control of a Nonlinear and Oscillating 2-dof Multimorph Cantilevered Piezoelectric Actuator." In Smart Materials-Based Actuators at the Micro/Nano-Scale, 61–88. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6684-0_4.

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Zhao, Xiao Bing, Xuan Yong Liu, and Chuan Xian Ding. "Effect of H2 on Microstructure and Property of Nano-Titania Coatings." In Materials Science Forum, 73–76. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-966-0.73.

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Askari, Syed Jawid, and Fan Xiu Lu. "Deposition of a Well-Adherent Nano-Crystalline Diamond Coating on Titanium Using CH4-H2 Gas Mixture." In Materials Science Forum, 1145–48. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-462-6.1145.

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Zhao, Yu Hong, Jia Chen Liu, Shun Li, and Yi Rong Liu. "Coating Nano-TiO2 on Optical Fiber with Al(H2PO4)3 Adhesive." In High-Performance Ceramics III, 485–88. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-959-8.485.

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Park, No Kuk, Yu Jin Lee, Gi Bo Han, Si Ok Ryu, and Tae Jin Lee. "Preparation and Reactivity Test of Nano Size ZnO for Removal of H2S and COS in a Gasified Fuel Gas." In Solid State Phenomena, 1003–6. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-31-0.1003.

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Liu, Wei, Guo Sheng Gai, Qiang Xie, and Yu Fen Yang. "Surface Coating of Anhydrite Powders with CaCO3 Nano-Particles Prepared in Ca(OH)2-H2O-CO2 System." In Key Engineering Materials, 961–64. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.961.

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Conference papers on the topic "H. nana"

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Maglieri, Domenic J. "Harvey H. Hubbard's contributions to aircraft noise control during his NACA-NASA career." In 167th Meeting of the Acoustical Society of America. Acoustical Society of America, 2014. http://dx.doi.org/10.1121/1.4896828.

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Yu, Gwo-Ruey, and C. W. Tao. "Intelligent H Control of Nano-Positioning Systems." In 2006 IEEE International Conference on Systems, Man and Cybernetics. IEEE, 2006. http://dx.doi.org/10.1109/icsmc.2006.384969.

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Dadadzhanov, Daler R., Tigran A. Vartanyan, Antonina I. Dadadzhanova, and Alina Karabchevsky. "Surface-enhanced near-infrared absorption (SENIRA) of C-H and N-H groups with gold nanoarray." In Quantum Sensing and Nano Electronics and Photonics XVII, edited by Manijeh Razeghi, Jay S. Lewis, Giti A. Khodaparast, and Pedram Khalili. SPIE, 2020. http://dx.doi.org/10.1117/12.2547793.

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Bin Shahadat, Muhammad Rubayat, AKM M. Morshed, Amitav Tikadar, Titan C. Paul, and Jamil A. Khan. "Nano Sized Bubble Formation, Growth and Collapse in Liquid Water by Central Heating: A Molecular Dynamics Simulation." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11794.

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Abstract Non-equilibrium Molecular Dynamics (NEMD) Simulation has been employed to investigate the nanobubble generation, growth and collapse in liquid water. The center molecules (240 water molecule) of the simulation domain were heated at five different temperatures (400K, 800K, 1500K, 2100K and 2800K) by velocity scaling for a very short period of time and the radius of the nano sized bubble was calculated. At 400K temperature, no nano bubble is formed but as temperature increases, nano bubble forms and the radius of the nano bubble increases. TIP-3P potential model has been used to predict the structural parameters of water molecules. The SHAKE algorithm has been employed to hold the bonds of O-H and H-O-H as rigid. The results obtained from the simulation were then compared with the results got from Rayleigh-Plesset Equation in order to show the discrepancy of MD simulation and the Hydrodynamic model. The simulation results indicate that Rayleigh-Plesset equation is not valid for prediction the formation, growth and collapse of nano bubble in liquid water because of its uncertainty in predicting the surface tension and ignoring the viscosity.
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Zheng, Yao-Ting, Zaoxiao Zhang, Guang-xu Cheng, Fu-Zhen Xuan, and Zhengdong Wang. "Molecular Dynamics Simulation of Hydrogen-Activated Coalescence and Growth of Nano-Voids." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65577.

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The understanding of hydrogen embrittlement (HE) is of significant importance and fundamental interest owing to its negative effects on industrial metallic materials. The effect of solute H on the void coalescence and growth needs to be clarified. Using molecular dynamics simulation, the evolution of preexisting nano voids is studied in the presence of H atoms. As the per unit area concentration of trapped H atom on void surface reaches 0.45 /Å2, the movement of void is observed. It proceeds along with the interdiffusion of H and Fe atoms around the voids. Strain-mediated diffusion of H atoms from void surface to the zone between nearest voids occurs at first. Then the Fe atoms are affected by migrated H and diffuse in the opposite direction following the principle of energy minimization. Such mechanism can help us understand the formation of high pressure bubble at nano scale. Based on this useful information, some methods could be obtained to prevent the growth of voids further, such as strengthening the stability of metal lattice around voids by dopant etc.
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Jeong, W. C., K. Kiyoyama, M. Murugesan, T. Fukushima, T. Tanaka, and M. Koyanagi. "Characteristics of Magnetic Film Inductors with FePt Nano-Dots." In 2008 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2008. http://dx.doi.org/10.7567/ssdm.2008.h-10-4.

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Ko, Y. H., and J. S. Yu. "Optical properties of ZnO/Au core/shell nano-tips." In 2010 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2010. http://dx.doi.org/10.7567/ssdm.2010.h-3-2.

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Joel, J., and M. Anthony Xavior. "Enhancing the Frictional Behaviour of H-BN Reinforced Nanocomposites Through Laser Shock Peening." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10162.

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Abstract In this research work, LM6 Aluminum alloy based metal matrix composites reinforced with varying amounts (0.2, 0.4, 0.6 and 0.8 wt%) of boron nitride (BN) having 10 to 30 nanometers average size were developed by using powder metallurgy and squeeze casting routes. The mechanical and tribological properties are analyzed for the samples developed through the two different routes and the influence of the process on the properties is discussed. Thus developed nano composite is studied for the effect of weight percentage addition of nano H-BN particle on the bulk and surface properties. Mechanical testing and advanced characterization methods are used to study the effect of the nano H-BN addition to the matrix material and to evaluate the composite for its suitability as a potential friction material used in strategic sectors. It has been inferred that the presence of nano H-BN have improved the bulk and surface properties. Further, it has been established that the powder metallurgy route has some favorable results when compared to squeeze casting in terms of certain properties. Thus fabricated composites were subjected to laser shock peening process to study its impact on the surface and wear characteristics. The 0.6 wt% H-BN reinforced composites fabricated separately by Powder metallurgy and Squeeze casting method are exposed to laser shock peening process and it was inferred that there is a significant improvement on the surface and wear properties when compared to normal specimen.
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Ning Chunag and Ian R. Peters. "Robust H∞ control in nano-positioning." In Control (MSC). IEEE, 2010. http://dx.doi.org/10.1109/cca.2010.5611252.

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Meuret, S., L. H. G. Tizei, R. Bourrellier, J. D. Blazit, M. Tencé, A. Zobelli, and M. Kociak. "Quantum nano optics of defect centers in diamond and h-BN with nano-cathodoluminescence." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/cleo_at.2014.jw2a.129.

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Reports on the topic "H. nana"

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Sabolsky, Edward M. AOI [3] High-Temperature Nano-Derived Micro-H2 and - H2S Sensors. Office of Scientific and Technical Information (OSTI), August 2014. http://dx.doi.org/10.2172/1158798.

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Rard, J. Results from Boiling Temperature Measurements for Saturated Solutions in the Systems NaCl + KNO{sub 3} + H{sub 2}O, NaNO{sub 3} + KNO{sub 3} + H{sub 2}O, and NaCl + NaNO{sub 3} + KNO{sub 3} + H{sub 2}O. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/15011539.

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