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Sample records for wu wu li

  1. [Analysis of professor WU Lianzhong's experience of neck acupoints application].

    Science.gov (United States)

    Peng, Jiandong; Zheng, Hongyan; Wang, Yingshu

    2015-09-01

    Professor WU Lianzhong's experience of neck acupoints application is introduced. The characteristics,locations, acupuncture manipulations ,efficiency and main functions of neck acupoints including Tiandixue (Extra), Jingbixue (Extra), and cervical Jiaji (EX-B 2) are stated. According to the TCM thought of treatment based on syndrome differentiation,WU Lianzhong's special theory of neck acupoints application is explained so as to provide experience for improving acupuncture effects.

  2. [Dialectic research on family lineage of Wu Kun, a Xin'an famous physician].

    Science.gov (United States)

    Zhang, L; Yao, S

    2000-07-01

    The records on the family lineage of a personage in the medical circle should be as accurate as possible. In Textual Research on Xin'an Famous Doctor, it is said that the Xin'an famous physician Wu Kun was the grandson of Wu Znenglun. Through dialectic research, this saying was proved to be untrue. Wu Kun's grandfather is Wu Yuan - chang, who had no direct blood relationship with Wu Zhenglun.

  3. [Textual research on the edition of WU Kun's books].

    Science.gov (United States)

    Wang, Xu-Guang; Lu, Xiang

    2013-03-01

    WU Kun is a famous physician of the Xin'an School. He wrote a 6-volume Yi fang kao (Textual Research on Recipes) in 1584, a 24-volume Wu zhu su wen (Wu's Annotation of Plain Questions) in 1594, a 6-volume Zhen fang liu ji (Six Collections of Acupuncture and Prescription) in 1618 block-printed and funded by CHENG Biao, and a 2-volume Mai yu (Language of Pulse) with writing date unknown. For Yi fang kao, there were 4 editions, including Ming-dynasty block-printed edition, Japanese and Korean block-printed edition, old hand-copied edition and modern printing edition. For Wu zhu su wen, there were 5 editions, Ming-Qing-dynasty block-printed edition, Japanese block-printed edition, old hand-copied edition, photocopy and modern edition. For Zhen fang liu ji, there were Ming-dynasty block-printed edition, hand-copied edition, photocopy and modern edition. Mai yu always was printed together with Yi fang kao, and its editions were same as those of Yi fang kao, except some modern printing edition with Mai yu excluded.

  4. Wu-Ling-San formula prophylaxis against recurrent calcium oxalate ...

    African Journals Online (AJOL)

    WLS formula is a promising adjunct to surgical and medical management of kidney stones. Active therapy with WLS formula has a positive effect on diuresis without leading to electrolyte imbalance. Key words: Calcium oxalate, Urinary Stone, Traditional Chinese Medicine, Wu-Ling-San Formula, Nephrolithiasis.

  5. Towards a Collective Intelligence: Transmediality and the Wu Ming Project

    Directory of Open Access Journals (Sweden)

    Melina Anne Masterson

    2014-11-01

    Full Text Available Dagli albori della Seconda Repubblica in Italia,  le strategie di dominio sui mass media dell’ex premier Silvio Berlusconi hanno avuto un effetto considerevole sull’immaginario culturale italiano. In un approccio multisensoriale e multimediale alla scrittura, il collettivo Wu Ming mette in questione i paradigmi culturali che negli ultimi venti anni sono diventati egemonici. L’esperienza di un romanzo dei Wu Ming va ben oltre la parola stampata poiché cerca di stimolare tutti i cinque sensi per arricchire il modo in cui il lettore vive quello che c’è sulla pagina, dimostrando esempi chiari della «convergence culture» coniata da Henry Jenkins. Questo saggio esamina l’interazione tra parola e immagine messa in atto dal collettivo tramite il sito Pinterest e illustra come questo aspetto del loro progetto rappresenti un microcosmo di un approccio complessivo alla creazione estetica e alla pratica culturale. Inoltre, questo saggio descrive in che modo il processo collettivo di consumo portato avanti dai Wu Ming contribuisca alla formazione delle «communities of sentiment» di Arjun Appadurai e alla «intelligenza collettiva» di Jenkins. Queste sono formazioni che rivitalizzano il concetto di cultura popolare per la nostra epoca digitale e offrono un’alternativa ad un immaginario culturale italiano sovra-determinato dalle pratiche del Berlusconismo.

  6. Multiorgan WU Polyomavirus Infection in Bone Marrow Transplant Recipient.

    Science.gov (United States)

    Siebrasse, Erica A; Nguyen, Nang L; Willby, Melisa J; Erdman, Dean D; Menegus, Marilyn A; Wang, David

    2016-01-01

    WU polyomavirus (WUPyV) was detected in a bone marrow transplant recipient with severe acute respiratory distress syndrome who died in 2001. Crystalline lattices of polyomavirus-like particles were observed in the patient's lung by electron microscopy. WUPyV was detected in the lung and other tissues by real-time quantitative PCR and identified in the lung and trachea by immunohistochemistry. A subset of WUPyV-positive cells in the lung had morphologic features of macrophages. Although the role of WUPyV as a human pathogen remains unclear, these results clearly demonstrate evidence for infection of respiratory tract tissues in this patient.

  7. Topological field theories on manifolds with Wu structures

    Science.gov (United States)

    Monnier, Samuel

    We construct invertible field theories generalizing abelian prequantum spin Chern-Simons theory to manifolds of dimension 4ℓ + 3 endowed with a Wu structure of degree 2ℓ + 2. After analyzing the anomalies of a certain discrete symmetry, we gauge it, producing topological field theories whose path integral reduces to a finite sum, akin to Dijkgraaf-Witten theories. We take a general point of view where the Chern-Simons gauge group and its couplings are encoded in a local system of integral lattices. The Lagrangian of these theories has to be interpreted as a class in a generalized cohomology theory in order to obtain a gauge invariant action. We develop a computationally friendly cochain model for this generalized cohomology and use it in a detailed study of the properties of the Wu Chern-Simons action. In the 3-dimensional spin case, the latter provides a definition of the “fermionic correction” introduced recently in the literature on fermionic symmetry protected topological phases. In order to construct the state space of the gauged theories, we develop an analogue of geometric quantization for finite abelian groups endowed with a skew-symmetric pairing. The physical motivation for this work comes from the fact that in the ℓ = 1 case, the gauged 7-dimensional topological field theories constructed here are essentially the anomaly field theories of the 6-dimensional conformal field theories with (2, 0) supersymmetry, as will be discussed elsewhere.

  8. Governing Civil Service Pay in China, by Alfred M. Wu. Copenhagen: NIAS Press, 2014. xvi+236 pp

    DEFF Research Database (Denmark)

    Brødsgaard, Kjeld Erik

    2016-01-01

    Book review of: Governing Civil Service Pay in China by Alfred M. Wu. Copenhagen: NIAS Press, 2014.......Book review of: Governing Civil Service Pay in China by Alfred M. Wu. Copenhagen: NIAS Press, 2014....

  9. Chien-Shiung Wu: An Icon of Physicist and Woman Scientist in China

    Science.gov (United States)

    Zhu, Yuelin

    2014-03-01

    Chien-Shiung Wu, the first female president of APS, is a well-known figure in China, a figure who serves as an inspiration for youths, especially young women, to study science and particularly physics. In this presentation, a historical perspective will be used to show how such an icon was formed. Born in 1912, the year of the Republic Revolution, Wu was in the first generation of physicists in China and her college mentor was a student of Marie Curie. When Wu came to the U.S. for graduate studies in the 1930s, it was a ``golden age'' for nuclear physics, and the invention of the cyclotron by E. O. Lawrence put UC Berkeley at the frontier. Wu was trained there, with Lawrence as her advisor, and later became an expert in Beta-decay. In 1956, Wu conceived and initiated the experiment of Cobalt-60, which, together with other two experiments, eventually proved the asymmetry of parity in weak-interactions, a hypothesis proposed by T. D. Lee and C. N. Yang. The importance of the experiment gained Wu an enormous reputation which spread even to China, when this was a period of hostility in Sino-American relations, and near total isolation due to the Cold-War. Wu was the daughter of a revolutionary, and an activist in college in patriotic student movements, and she combined this background with her scientific career as the way of ``Saving China with Science,'' a common belief reflecting the Zeitgeist of her time. Although she spent most of her life in the U.S., Wu never wavered in her love for or loyalty to her motherland. Her patriotism, as well as her scientific achievement, made Wu a legend in China, being called ``the Chinese Madam Curie.'' Even during the Cultural Revolution, a novel supposedly taking Wu as the original model was very popular in underground circles, widely spread by hand-written-copies. From 1979-1988, the CUSPEA program enrolled hundreds of China's best graduate students into physics departments in American universities. Although Wu herself was not

  10. Analysing the Wu metric on a class of eggs in Cn – II

    Indian Academy of Sciences (India)

    Indian Acad. Sci. (Math. Sci.) Vol. 127, No. 3, June 2017, pp. 463–470. DOI 10.1007/s12044-017-0330-y. Analysing the Wu metric on a class of eggs in Cn – II ... In general, the Wu met- ric may fail to be upper ... metric on E2m. Note that E2m is a balanced pseudoconvex domain in Cn and hence the. Kobayashi metric at the ...

  11. Lattice models and integrability: a special issue in honour of F Y Wu

    Science.gov (United States)

    Guttmann, A. J.; Jacobsen, J. L.

    2012-12-01

    Fa Yueh (Fred) Wu was born on 5 January 1932 in Nanking (now known as Nanjing), China, the capital of the Nationalist government. Wu began kindergarten in 1937 in a comfortable setting, as his father held a relatively high government position. But the Sino-Japanese war broke out in July 1937, and Nanking fell to Japanese hands in November. Fleeing the Japanese, his parents brought Wu to their hometown in Hunan, and then to the war capital Chungking (now Chongqing) in 1938, where they lived for eight years until the end of the war. Around that time the Japanese began bombing Chungking, and Wu's childhood memories were dominated by air raids, bombings and burning not dissimilar to those experienced by Londoners during the war. At times the air raids lasted for days disrupting everyday lives in Chungking, including Wu's schooling. One day during a fierce bombing raid, a bomb fell in their garden reducing a pavilion and the surrounding pond to a huge crater; another bomb fell just a few metres from the tunnel where his family took shelter, almost sealing the only entrance. The family moved the very next day to the countryside. As a result of the war, Wu attended seven schools before finishing his primary education. Fortunately, by the time he entered junior high school in 1943, the Japanese forces were on the wane and Wu entered the elite middle school, Nankai. His early academic performance in Nankai seemed to him mediocre, but he nevertheless impressed his geometry teacher by showing bursts of talent. With hindsight, this early interest in geometry may have led to his later insights in graphical analyses of statistical systems. The family returned to Nanking in 1946 after the Victory over Japan Day. By this time his father had become elected to the Legislative Yuan, the equivalent of the US Senate. Wu entered high school in Nanking in 1946. Since he came from an elite school in Chungking, he excelled in most of his classes, especially mathematics. Notwithstanding his

  12. Ray Wu as Fifth Business: Deconstructing collective memory in the history of DNA sequencing.

    Science.gov (United States)

    Onaga, Lisa A

    2014-06-01

    The concept of 'Fifth Business' is used to analyze a minority standpoint and bring serious attention to the role of scientists who play a galvanizing role in a science but for multiple reasons appear less prominently in more common recounts of any particular development. Biochemist Ray Wu (1928-2008) published a DNA sequencing experiment in March 1970 using DNA polymerase catalysis and specific nucleotide labeling, both of which are foundational to general sequencing methods today. The scant mention of Wu's work from textbooks, research articles, and other accounts of DNA sequencing calls into question how scientific collective memory forms. This alternative history seeks to understand why a key figure in nucleic acid sequence analysis has remained less visibly connected or peripheral to solidifying narratives about the history of DNA sequencing. The study resists predictable dismissals of Wu's work in order to seriously examine the formation of his nucleic acid sequence analysis research program and how he shared his knowledge of sequencing during a period of rapid advancement in the field. An analysis of Wu's work on sequencing the cohesive ends of lambda bacteriophage in the 1960s and 1970s exemplifies how a variety of individuals and groups attempted to develop protocol for sequencing the order of nucleotide base pairs comprising DNA. This historical examination of the sociality of scientific research suggests a way to understand how Wu and others contributed to the very collective memory of DNA sequencing that Wu eventually tried to repair. The study of Wu, who was a Chinese immigrant to the United States, provides a foundation for further critical scholarship on the heterogeneous histories of Asian American bioscientists, the sociality of their scientific works, and how the resulting knowledge produced is preserved, if not evenly, in a scientific field's collective memory. Copyright © 2014 Elsevier Ltd. All rights reserved.

  13. The Hintermann-Merlini-Baxter-Wu and the infinite-coupling-limit Ashkin-Teller models

    Energy Technology Data Exchange (ETDEWEB)

    Huang Yuan, E-mail: huangy22@mail.ustc.edu.cn [Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China); Deng Youjin, E-mail: yjdeng@ustc.edu.cn [Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China); Jacobsen, Jesper Lykke, E-mail: jacobsen@lpt.ens.fr [Laboratoire de Physique Theorique, Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris (France); Universite Pierre et Marie Curie, 4 place Jussieu, 75252 Paris (France); Salas, Jesus, E-mail: jsalas@math.uc3m.es [Grupo de Modelizacion, Simulacion Numerica y Matematica Industrial, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911 Leganes (Spain); Grupo de Teorias de Campos y Fisica Estadistica, Instituto Gregorio Millan, Universidad Carlos III de Madrid, Unidad asociada al IEM-CSIC, Madrid (Spain)

    2013-03-11

    We show how the Hintermann-Merlini-Baxter-Wu model (which is a generalization of the well-known Baxter-Wu model to a general Eulerian triangulation) can be mapped onto a particular infinite-coupling-limit of the Ashkin-Teller model. We work out some mappings among these models, also including the standard and mixed Ashkin-Teller models. Finally, we compute the phase diagram of the infinite-coupling-limit Ashkin-Teller model on the square, triangular, hexagonal, and kagome lattices.

  14. Analysing the Wu metric on a class of eggs in Cn–I

    Indian Academy of Sciences (India)

    ∣ z 1 ∣ 2 m + ∣ z 2 ∣ 2 + ⋯ + ∣ z n − 1 ∣ 2 + ∣ z n ∣ 2 < 1 } , where m ≥ 1 / 2 , m ≠ 1 . The Wu metric is shown to be real analytic everywhere except on a lower dimensional subvariety where it fails to be C 2 -smooth. Overall however, the ...

  15. Thinking of the safety application of TCM By You Gu Wu Yun , A ...

    African Journals Online (AJOL)

    Background: You Gu Wu Yun (有故无殒), a Chinese ancient medicine application principle, has played an important role in Traditional Chinese Medicine (TCM) clinical practice so far. Materials and Methods: It emphasized that disease, medicine and treatment method were interconnecting and the relationship among these ...

  16. WU Polyomavirus in Respiratory Epithelial Cells from Lung Transplant Patient with Job Syndrome

    OpenAIRE

    Siebrasse, Erica A.; Pastrana, Diana V.; Nguyen, Nang L.; Wang, Annie; Roth, Mark J.; Holland, Steven M.; Freeman, Alexandra F.; McDyer, John; Buck, Christopher B.; Wang, David,

    2015-01-01

    We detected WU polyomavirus (WUPyV) in a bronchoalveolar lavage sample from lungs transplanted into a recipient with Job syndrome by using immunoassays specific for the WUPyV viral protein 1. Co-staining for an epithelial cell marker identified most WUPyV viral protein 1?positive cells as respiratory epithelial cells.

  17. Strength-based Supervision: Frameworks, Current Practice, and Future Directions A Wu-wei Method.

    Science.gov (United States)

    Edwards, Jeffrey K.; Chen, Mei-Whei

    1999-01-01

    Discusses a method of counseling supervision similar to the wu-wei practice in Zen and Taoism. Suggests that this strength-based method and an understanding of isomorphy in supervisory relationships are the preferred practice for the supervision of family counselors. States that this model of supervision potentiates the person-of-the-counselor.…

  18. Phase transitions in self-dual generalizations of the Baxter-Wu model

    NARCIS (Netherlands)

    Deng, Y.; Guo, W.; Heringa, J.R.; Blöte, H.W.J.; Nienhuis, B.

    2010-01-01

    We study two types of generalized Baxter-Wu models, by means of transfer-matrix and Monte Carlo techniques. The first generalization allows for different couplings in the up- and down-triangles, and the second generalization is to a q-state spin model with three-spin interactions. Both

  19. Ignition delay time correlation of fuel blends based on Livengood-Wu description

    KAUST Repository

    Khaled, Fathi

    2017-08-17

    In this work, a universal methodology for ignition delay time (IDT) correlation of multicomponent fuel mixtures is reported. The method is applicable over wide ranges of temperatures, pressures, and equivalence ratios. n-Heptane, iso-octane, toluene, ethanol and their blends are investigated in this study because of their relevance to gasoline surrogate formulation. The proposed methodology combines benefits from the Livengood-Wu integral, the cool flame characteristics and the Arrhenius behavior of the high-temperature ignition delay time to suggest a simple and comprehensive formulation for correlating the ignition delay times of pure components and blends. The IDTs of fuel blends usually have complex dependences on temperature, pressure, equivalence ratio and composition of the blend. The Livengood-Wu integral is applied here to relate the NTC region and the cool flame phenomenon. The integral is further extended to obtain a relation between the IDTs of fuel blends and pure components. Ignition delay times calculated using the proposed methodology are in excellent agreement with those simulated using a detailed chemical kinetic model for n-heptane, iso-octane, toluene, ethanol and blends of these components. Finally, very good agreement is also observed for combustion phasing in homogeneous charge compression ignition (HCCI) predictions between simulations performed with detailed chemistry and calculations using the developed ignition delay correlation.

  20. Phylogeography of Sophora moorcroftiana Supports Wu's Hypothesis on the Origin of Tibetan Alpine Flora.

    Science.gov (United States)

    Cheng, Shanmei; Qiong, La; Lu, Fan; Yonezawa, Takahiro; Yin, Ganqiang; Song, Zhiping; Wang, Yuguo; Yang, Ji; Zhang, Wenju

    2017-06-01

    Wu hypothesized that the Tibetan flora originated mostly from the paleotropical Tertiary flora in the Hengduan Mountains by adapting to the cold and arid environments associated with the strong uplift of the Qinghai-Tibet Plateau (QTP). Here, we combine the phylogeographic history of Sophora moorcroftiana with that of Sophora davidii to explore the speciation of S. moorcroftiana to test this hypothesis. We collected 151 individuals from 17 populations and sequenced 2 chloroplast fragments and the internal transcribed spacer of rDNA. Five chlorotypes and 9 ribotypes were detected but no significant phylogeographic structure was revealed. The integrated results of phylogeographic studies of these 2 species clearly support the progenitor-derivative relationship between them. We infer that the western peripheral population of S. davidii migrated westwards from the Hengduan Mountains to the middle reaches of the Yarlung Zangbo River and differentiated from its ancestor in the process of adaptation to increasingly cold and arid environments with the uplift of the QTP and finally evolved into S. moorcroftiana during the Late Pliocene. In addition, our findings shed light on the idea that natural selection, as imposed by climate differentiation (especially mean diurnal range and precipitation seasonality), directly drove this peripatric speciation event after geographic isolation. The speciation of S. moorcroftiana is a strong case supporting Wu's hypothesis about the origin of Tibet's flora. © The American Genetic Association 2017. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  1. Gene identification and functional analysis of methylcitrate synthase in citric acid-producing Aspergillus niger WU-2223L.

    Science.gov (United States)

    Kobayashi, Keiichi; Hattori, Takasumi; Honda, Yuki; Kirimura, Kohtaro

    2013-01-01

    Methylcitrate synthase (EC 2.3.3.5; MCS) is a key enzyme of the methylcitric acid cycle localized in the mitochondria of eukaryotic cells and related to propionic acid metabolism. In this study, cloning of the gene mcsA encoding MCS and heterologous expression of it in Escherichia coli were performed for functional analysis of the MCS of citric acid-producing Aspergillus niger WU-2223L. Only one copy of mcsA (1,495 bp) exists in the A. niger WU-2223L chromosome. It encodes a 51-kDa polypeptide consisting of 465 amino acids containing mitochondrial targeting signal peptides. Purified recombinant MCS showed not only MCS activity (27.6 U/mg) but also citrate synthase (EC 2.3.3.1; CS) activity (26.8 U/mg). For functional analysis of MCS, mcsA disruptant strain DMCS-1, derived from A. niger WU-2223L, was constructed. Although A. niger WU-2223L showed growth on propionate as sole carbon source, DMCS-1 showed no growth. These results suggest that MCS is an essential enzyme in propionic acid metabolism, and that the methylcitric acid cycle operates functionally in A. niger WU-2223L. To determine whether MCS makes a contribution to citric acid production, citric acid production tests on DMCS-1 were performed. The amount of citric acid produced from glucose consumed by DMCS-1 in citric acid production medium over 12 d of cultivation was on the same level to that by WU-2223L. Thus it was found that MCS made no contribution to citric acid production from glucose in A. niger WU-2223L, although MCS showed CS activity.

  2. Memoria, trauma e mitopoiesi: Lawrence d'Arabia e Stella del mattino di Wu Ming 4

    Directory of Open Access Journals (Sweden)

    Emanuela Piga

    2011-11-01

    Full Text Available This article reconsiders the narrative construnction of the historical novel in the light of recent critical debates. Bearing in mind the overarching theme of the hybridization of the historiographic and literary genres, the article examines in detail Wu Ming 4’s solo novel, Stella del mattino (2008. In this work, the rewriting of real, once existing historical characters follows a thread of verisimilitude against the backdrop of meticulously reconstructed historical scenarios. By focusing on the use of history, allegory and myth in the novel, the aim of this study is to examine the narration of the overcoming of Trauma of the First World War through the therapeutic value of writing. In so doing, emphasis is given to passages in which the reader is able to grasp, between  the scattered fragments of history, moments of the utopian impetus, thanks to the narration of communal moments of being and everyday life practices.

  3. A Response to Professor Wu Zongjie's "Interpretation, Autonomy, and Transformation: Chinese Pedagogic Discourse in a Cross-Cultural Perspective"

    Science.gov (United States)

    Curran, Thomas D.

    2014-01-01

    In response to an essay by Prof Wu Zongjie that was published in the "Journal of Curriculum Studies" [43(5), (2011), 569-590], I argue that, despite dramatic changes that have taken place in the language of Chinese academic discourse and pedagogy, evidence derived from the fields of psychology and the history of Chinese educational…

  4. 31 july 2014 - H. WU Ambassador Permanent Representative of the People's Republic of China to the United Nations

    CERN Multimedia

    Egli, Laurent

    2014-01-01

    His Excellency Mr Hailong WU Ambassador Permanent Representative of the People's Republic of China to the United Nations Office at Geneva and other international organizations in Switzerland visiting the ATLAS cavern with ATLAS Spokesperson D. Charlton and the LHC tunnel at Point 1 with Technology Department, Vacuum, Surfaces and Coatings Group P. Cruikshank.

  5. UPLC-QTOF-MS with chemical profiling approach for rapidly evaluating chemical consistency between traditional and dispensing granule decoctions of Tao-Hong-Si-Wu decoction

    Directory of Open Access Journals (Sweden)

    Shang Erxin

    2012-11-01

    Full Text Available Abstract Background In the present study, chemical consistency between traditional and dispensing granule decoctions of Tao-Hong-Si-Wu decoction was rapidly evaluated by UPLC-QTOF-MS coupled with the MarkerLynx software. Two different kinds of decoctions, namely traditional decoction: water extract of mixed six constituent herbs of Tao-Hong-Si-Wu decoction, and dispensing granules decoction: mixed water extract of each individual herbs of Tao-Hong-Si-Wu decoction, were prepared. Results Chemical difference was found between traditional and dispensing granule decoctions, and albiflorin, paeoniflorin, gallic acid, amygdalin, and hydroxysafflor yellow A were identified as the significantly changed components during decocting Tao-Hong-Si-Wu decoction. All the peaks of mass spectrum from Tao-Hong-Si-Wu decoction and each herb were extracted and integration by using QuanLynx™. And the optimized data was used for linear regression analysis. The contribution of each herb in Tao-Hong-Si-Wu decoction, and the optimal compatibility proportion of dispensing granule decoction were derived from the linear regression equation. Conclusions The optimal dosage proportionality of Tao-Hong-Si-Wu dispensing granule decoction was obtained as 2.5:0.2:1:0.5:0.6:0.1 (DG : CX : BS : SD : TR : HH, which guided better clinic application of Tao-Hong-Si-Wu decoction as dispensing granule decoctions usage, and it also provided some experimental data to reveal the compatibility rule of the relative TCM formulae.

  6. Functional Integral Approach to Parisi-Wu Stochastic Quantization and Related Problems.

    Science.gov (United States)

    Gozzi, Ennio

    A path-integral formulation is given of the Parisi -Wu method of stochastic quantization. The connection between the Langevin and Fokker-Planck equations is rederived in functional form bringing to light new aspects of these equations. The relation between this functional method and the recent approach by De-Alfaro-Fubini-Furlan is clarified. In particular we present the non-local transformation that connects the two formulations. In this dissertation we also investigate the hidden supersymmetry recently discovered by Parisi and Sourlas in Langevin processes. The Kelvin relations, for diffusion processes out of equilibrium, are shown to be a necessary and sufficient condition to have supersymmetry. This proves that this symmetry is a manifestation, at the path-integral level, of the Onsager principle of microreversibility present in the stochastic process. We analyze, in particular, the interesting interplay between forward and backward Fokker-Planck dynamics and, as an application, we rederive the fluctuation-dissipation theorem as a Ward-identity of this supersymmetry.

  7. Upper respiratory tract tumors in Cpb:WU (Wistar random) rats.

    Science.gov (United States)

    Feron, V J; Woutersen, R A; van Garderen-Hoetmer, A; Dreef-van der Meulen, H C

    1990-01-01

    A survey is given of upper respiratory tract tumors in Cpb:WU (Wistar random) rats. Data were collected from ten 24- to 30-month toxicity/carcinogenicity studies and from one 12-month study. Nasal tumors may lead to dyspnea, mouth breathing, and nasal discharge. These clinical signs mainly occurred in rats bearing squamous cell carcinomas. The large nasal tumors were often osteolytic, they invaded the subcutis over the premaxilla, resulting in swellings on the back of the nose, and extended into the brain. The incidence of nasal tumors in untreated male controls was 1.1% (7/661), the tumors invariably being squamous cell carcinomas. There were no nasal tumors found in untreated female controls. The type of compound-induced nasal tumor most frequently observed was adenocarcinoma (of the olfactory epithelium) followed, in order of decreasing incidence, by squamous cell carcinoma, carcinoma in situ, polypoid adenoma, Schwannoma, and carcinosarcoma. It was proposed that adenocarcinomas of the olfactory epithelium should be classified as neuroepitheliomas. It was also suggested that squamous cell carcinomas, seen in association with necrotizing inflammation of an incisor tooth, should be considered as part of the malocclusion syndrome. No spontaneous tracheal tumors were observed, and only one out of 422 untreated female controls (0.2%) was seen to have a laryngeal tumor, an adenoma. Induced laryngeal tumors included carcinoma in situ, squamous cell carcinoma, and adenocarcinoma. Squamous cell carcinoma was the only type of treatment-related tracheal tumor found. The incidences of induced laryngeal and tracheal tumors were very low, and in no case were these tumors statistically significantly different from the respective incidences in controls. Images PLATE 1. PLATE 2. PLATE 3. PLATE 4. PLATE 5. PLATE 6. PLATE 7. PLATE 8. PLATE 9. PLATE 10. PLATE 11. PLATE 12. PLATE 13. PLATE 14. PLATE 15. PMID:2384064

  8. No evidence for WU polyomavirus infection in chronic obstructive pulmonary disease

    Directory of Open Access Journals (Sweden)

    Ringshausen Felix C

    2009-08-01

    Full Text Available Abstract Human polyomaviruses are known to cause persistent or latent infections, which are reactivated under immunosuppression. Polyomaviruses have been found to immortalize cell lines and to possess oncogenic properties. Moreover, the recently discovered Merkel cell polyomavirus shows a strong association with human Merkel cell carcinomas. Another novel human polyomavirus, WU polyomavirus (WUPyV, has been identified in respiratory specimens from patients with acute respiratory tract infections (ARTI. WUPyV has been proposed to be a pathogen in ARTI in early life and immunocompromised individuals, but so far its role as a causative agent of respiratory disease remains controversial. The objective of our study was to determine the prevalence of WUPyV infections in adult hospitalized patients with acute exacerbation of chronic obstructive pulmonary disease (COPD and to establish its potential clinical relevance by comparison to patients with stable COPD hospitalized for other reasons than acute exacerbation of COPD (AE-COPD. A total of 378 respiratory specimens, each 189 induced sputum and nasal lavage samples from 189 patients, who had been recruited in a prospective 2:1 ratio case-control set-up between 1999 and 2003, were evaluated for the presence of WUPyV DNA by real-time PCR. In the present study we could not detect WUPyV DNA in 378 respiratory specimens from 189 adult hospitalized patients with AE-COPD and stable COPD in four consecutive years. Persistence of viral replication or reactivation of latent WUPyV infection did not occur. WUPyV may not play a major role in adult immunocompetent patients with AE-COPD and stable COPD.

  9. KI and WU Polyomaviruses and CD4+ Cell Counts in HIV-1–infected Patients, Italy

    Science.gov (United States)

    Babakir-Mina, Muhammed; Ciccozzi, Massimo; Farchi, Francesca; Bergallo, Massimiliano; Cavallo, Rossana; Adorno, Gaspare; Perno, Carlo Federico

    2010-01-01

    To investigate an association between KI and WU polyomavirus (KIPyV and WUPyV) infections and CD4+ cell counts, we tested HIV-1–positive patients and blood donors. No association was found between cell counts and virus infections in HIV-1–positive patients. Frequency of KIPyV infection was similar for both groups. WUPyV was more frequent in HIV-1–positive patients. PMID:20735940

  10. PLE-wu, a new member of piggyBac transposon family from insect, is active in mammalian cells.

    Science.gov (United States)

    Wu, Chunxiao; Wang, Shu

    2014-10-01

    piggyBac, a highly active transposon in insect and mammalian cells, is a very useful tool in genome manipulation. A new piggyBac-like element (PLE), named PLE-wu, was identified from a mutant baculovirus cultured in sf9 insect cells. This new transposon is 2931 bp in length and encodes two active forms of transposase, a 708-amino acid-long transposase and a short 576-residue-long transposase translated from a downstream in-frame initiation codon. PLE-wu has asymmetric terminal structures, containing 6-bp inverted terminal repeats, 32-bp imperfect inverted and direct sub-terminal repeats. Similar to piggyBac, PLE-wu exhibits traceless excision activity in both insect and mammalian cells, restoring the original TTAA target sequence upon excision. It also retains the insertion activity in mammalian cells with a plasmid to chromosome transposition rate about 10-fold higher than random integration. Plasmid rescue assays revealed that the TTAA target sequence was duplicated at the junctions of the insertion site. Deletion of the terminal sequences including the sub-terminal repeats decreased the transposition activity of the 708-residue-long transposase, while the transposition activity of the short form of transposase was not affected. With its low sequence similarity to piggyBac, PLE-wu will contribute to the understanding the mechanism of PLE transposition, as well as design of new transposon systems with higher activity. Copyright © 2014 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

  11. Chinese Herbal Formulas Si-Wu-Tang and Er-Miao-San Synergistically Ameliorated Hyperuricemia and Renal Impairment in Rats Induced by Adenine and Potassium Oxonate

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    Yongping Guo

    2015-10-01

    Full Text Available Background/Aims: Hyperuricemia is an independent risk factor for chronic kidney disease and cardiovascular disease. Here, we examined the combined protective effects of Chinese herbal formula Si-Wu-Tang and Er-Miao-San on hyperuricemia and renal impairment in rats. Methods: Rats were randomly divided into normal rats, hyperuricemic rats, and hyperuricemic rats orally administrated with benzbromarone (4.5 mg·kg-1·d-1, Si-Wu-Tang (3.78 g·kg-1·d-1 and Si-Wu-Tang plus Er-Miao-San (6.48 g·kg-1·d-1 for 4 weeks. Hyperuricemic rats were orally gavaged with adenine (0.1 g·kg-1·d-1 and potassium oxonate (1.5 g·kg-1·d-1 daily for 4 weeks. Serum uric acid, creatinine, total cholesterol (TCH, triglyceride and blood urea nitrogen (BUN concentrations, as well as urinary uric acid and microalbuminuria were measured weekly. Serum xanthine oxidase (XOD activity and renal histopathology were also evaluated. The renal expression of organic anion transporter 1 (OAT1 and organic anion transporter 3 (OAT3 was detected by western blot. Results: Si-Wu-Tang plus Er-Miao-San lowered serum uric acid, creatinine, triglyceride and BUN levels to a greater degree than did Si-Wu-Tang alone. Si-Wu-Tang plus Er-Miao-San ameliorated microalbuminuria and renal histopathology, as well as decreased serum TCH concentration and XOD activity in hyperuricemic rats. Combination of Si-Wu-Tang and Er-Miao-San also led to a greater increase in OAT1 and OAT3 expression than did Siwutang alone. Conclusion: Si-Wu-Tang and Er-Miao-San synergistically ameliorated hyperuricemia and renal impairment in rats through upregulation of OAT1 and OAT3.

  12. Newly described human polyomaviruses Merkel Cell, KI and WU are present in urban sewage and may represent potential environmental contaminants

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    Carratala Anna

    2010-06-01

    Full Text Available Abstract Recently, three new polyomaviruses (KI, WU and Merkel cell polyomavirus have been reported to infect humans. It has also been suggested that lymphotropic polyomavirus, a virus of simian origin, infects humans. KI and WU polyomaviruses have been detected mainly in specimens from the respiratory tract while Merkel cell polyomavirus has been described in a very high percentage of Merkel cell carcinomas. The distribution, excretion level and transmission routes of these viruses remain unknown. Here we analyzed the presence and characteristics of newly described human polyomaviruses in urban sewage and river water in order to assess the excretion level and the potential role of water as a route of transmission of these viruses. Nested-PCR assays were designed for the sensitive detection of the viruses studied and the amplicons obtained were confirmed by sequencing analysis. The viruses were concentrated following a methodology previously developed for the detection of JC and BK human polyomaviruses in environmental samples. JC polyomavirus and human adenoviruses were used as markers of human contamination in the samples. Merkel cell polyomavirus was detected in 7/8 urban sewage samples collected and in 2/7 river water samples. Also one urine sample from a pregnant woman, out of 4 samples analyzed, was positive for this virus. KI and WU polyomaviruses were identified in 1/8 and 2/8 sewage samples respectively. The viral strains detected were highly homologous with other strains reported from several other geographical areas. Lymphotropic polyomavirus was not detected in any of the 13 sewage neither in 9 biosolid/sludge samples analyzed. This is the first description of a virus isolated from sewage and river water with a strong association with cancer. Our data indicate that the Merkel cell polyomavirus is prevalent in the population and that it may be disseminated through the fecal/urine contamination of water. The procedure developed may

  13. His Excellency Mr Ken WU Ambassador Extraordinary and Plenipotentiary of the People’s Republic of China to Switzerland

    CERN Multimedia

    Jean Claude Gadmer

    2011-01-01

    Photo 1-5:The delegation visiting the ATLAS visitor Center with P.Jenni, ATLAS Collaboration former Spokesperson Photo 6-14,15-20:visiting the ATLAS experimental area Photo 15:Y. YANG,Attaché-Q. WAN,First Secretary-Z. Ren,ATLAS Collaboration,High Energy Group,Shandong University-H.E. Mr K. Wu-P. Jenni-R. Voss,Adviser for the People’s Republic of China-H. FENG,Counsellor Photo 21-38:Signature of the Guest Book with CERN Director-General R. Heuer

  14. Two Novel Hepatocellular Carcinoma Cycle Inhibitory Cyclodepsipeptides from a Hydrothermal Vent Crab-Associated Fungus Aspergillus clavatus C2WU

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    Wei Jiang

    2013-12-01

    Full Text Available Two novel cyclodepsipeptides containing an unusual anthranilic acid dimer and a d-phenyllactic acid residues, clavatustides A (1 and B (2, were identified from cultured mycelia and broth of Aspergillus clavatus C2WU isolated from Xenograpsus testudinatus, which lives at extreme, toxic habitat around the sulphur-rich hydrothermal vents in Taiwan Kueishantao. This is the first example of cyclopeptides containing an anthranilic acid dimer in natural products, and the first report of microbial secondary metabolites from the hydrothermal vent crab. Clavatustides A (1 and B (2 suppressed the proliferation of hepatocellular carcinoma (HCC cell lines (HepG2, SMMC-7721 and Bel-7402 in a dose-dependent manner, and induced an accumulation of HepG2 cells in G1 phase and reduction of cells in S phase.

  15. Etika v čínské debatě o vědě a životních názorech: Wu Zhihui

    OpenAIRE

    Typl, Lukáš

    2017-01-01

    The aim of this thesis is to eleborate a detailed analysis of Wu Zhihui`s essay: New faith and its view of the universe and of man and attempts to fill the still large gap in secondary literature. The method focuses on basic interpretations of Wu Zhihui's ideas and putting them into the context of Western philosophy. It emphasizes direct quotations and translations of key texts to Czech language. Through the analysis of his view of faith, knowledge, metaphysics, cosmology, ontology and human ...

  16. No Evidence of Human Polyomavirus 9, WU and KI DNA in Kidney and Urinary Bladder Tumour Tissue Samples.

    Science.gov (United States)

    Csoma, Eszter; Bidiga, László; Méhes, Gábor; Gergely, Lajos

    2016-01-01

    The oncogenic potential of human polyomaviruses (HPyVs) has been proposed, but so far only Merkel cell carcinoma polyomavirus seems to be associated with a human tumour. The role of BK polyomavirus (BKPyV) in human tumourigenesis remains controversial. BKPyV establishes persistent infection in the urinary tract, and renal and bladder neoplasms have been studied extensively, but conflicting prevalence data are reported. KI, WU and HPyV9 were detected in urine samples suggesting that these viruses may also infect the urinary tract, but their presence in urinary tract tumours has not been studied. The aim of this work was to examine the prevalence of KIPyV, WUPyV, HPyV9 and BKPyV by PCR in renal and bladder neoplasms. A total of 190 formalin-fixed paraffin-embedded renal neoplasms, bladder cancer and kidney biopsy samples were analysed for the presence of BKPyV, KIPyV, WUPyV and HPyV9 DNA by real-time and nested PCR. Amplifiable DNA was extracted from all the samples, but none of the studied viruses were detected in benign renal neoplasia (0/23), malignant renal tumours (0/89) or bladder cancer (0/76). Our study did not find any evidence that BKPyV, KIPyV, WUPyV or HPyV9 are associated with bladder and renal tumours. © 2016 S. Karger AG, Basel.

  17. [A Study on the quotations in the Wu xing da yi (The Gist of Five Phases) cited from Nei jing (Inner Canon)].

    Science.gov (United States)

    Wang, Zheng-Shan; Zhang, Qi-Cheng

    2013-07-01

    In the Wu xing da yi (The Gist of Five Phases), written by Xiao Ji of the Sui Dynasty, there were 9 quotations cited from Huang di nei jing (Inner Canon of Huangdi). By comparison with current version of Huang di nei jing, most of the descriptions are similar, yet still with some differences, such as yin-yang nature of the five zang visceras, the liver being the root of "pi ji", the spleen being the root of "cang lin" etc. Wu xing da yi epitomizes the books about yin-yang and five phases before the Sui Dynasty, while Xiao Ji's quotations from Huang di nei jing interpreted from the views of yin-yang and five phases, are different from the annotations of later ages.

  18. Chemical profiling of Di-Wu-Yang-Gan Granules by ultra performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry with MSE technology.

    Science.gov (United States)

    Tian, Dong; Zhou, Chao; Jia, Hong-Mei; Yu, Meng; Chang, Xing; Zhang, Hong-Wu; Ba, Yuan-Ming; Zou, Zhong-Mei

    2017-08-08

    Di-Wu-Yang-Gan Granules is a Traditional Chinese Medicine prescription used for the treatment of HBeAg-negative chronic hepatitis B patients in China. It consists of five commonly used Chinese herbs. However, the chemical constituents of the whole prescription had not been clarified yet. Hence, in this study, the chemical profiling of Di-Wu-Yang-Gan Granules was explored by ultra performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry, which can provide accurate molecular weight within 5-ppm error and sufficient MS/MS fragment ions without the need for precursor ion selection. As a result, 116 compounds were identified, including lignans, triterpenesaponins, flavonoids, coumarins, iridoids, nortriterpenoids, phenolic acids, and sesquiterpenes. All compounds were further assigned to the individual herbs. In conclusion, this established method was reliable and effective for the separation and identification of the constituents in Di-Wu-Yang-Gan Granules. The findings are beneficial for quality control of the prescription during production and provide helpful chemical information for exploring its efficacy and the mechanism of action. The fragmentation regularity summarized in this study also provided important information for the rapid identification of the chemical composition in herbal medicines or their prescription.

  19. Influence of filling-drawdown cycles of the Three Gorges reservoir on deformation and failure behaviors of anaclinal rock slopes in the Wu Gorge

    Science.gov (United States)

    Huang, Da; Gu, Dong Ming

    2017-10-01

    The upper Wu Gorge on the Yangtze River has been the site of tens of reservoir-induced landslides since the filling of the Three Gorges reservoir in 2003. These landslides have been occurring in heavily fractured carbonate rock materials along the rim of the reservoir in the Wu Gorge. A detailed investigation was carried out to examine the influence of reservoir operations (filling and drawdown) on slope stabilities in the upper Wu Gorge. Field investigations reveal many collapses of various types occurred at the toe of the anaclinal rock slopes, owing to the long-term intensive river erosion caused by periodic fluctuation of the reservoir level. Analysis of data from deformation monitoring suggests that the temporal movement of the slopes shows seasonal fluctuations that correlate with reservoir levels and drawdown conditions, with induced slope acceleration peaking when reservoir levels are lowest. This may illustrate that the main mechanism is the reservoir drawdown, which induces an episodic seepage force in the highly permeable materials at the slope toes, and thus leads to the episodic rockslides. The coupled hydraulic-mechanical (HM) modeling of the G2 landslide, which occurred in 2008, shows that collapse initiated at the submerged slope toe, which then caused the upper slope to collapse in a rock topple-rock slide pattern. The results imply that preventing water erosion at the slope toe might be an effective way for landslide prevention in the study area.

  20. [A molecular epidemiological study of KI polyomavirus and WU polyomavirus in children with acute respiratory infection in Tianjin, China].

    Science.gov (United States)

    Lin, Shu-Xiang; Wang, Wei; Guo, Wei; Yang, Hong-Jiang; Ma, Bai-Cheng; Fang, Yu-Lian; Xu, Yong-Sheng

    2017-07-01

    To investigate the relationship of KI polyomavirus (KIPyV) and WU polyomavirus (WUPyV) with acute respiratory infection in children in Tianjin, China. A total of 3 730 nasopharyngeal secretions were collected from hospitalized children with acute respiratory infection in Tianjin Children's Hospital from January 2011 to December 2013. Viral nucleic acid was extracted, and virus infection (KIPyV and WUPyV) was determined by PCR. Some KIPyV-positive and WUPyV-positive PCR products were subjected to sequencing. Sequencing results were aligned with the known gene sequences of KIPyV and WUPyV to construct a phylogenetic tree. Amplified VP1 fragments of KIPyV were inserted into the cloning vector (PUCm-T) transformed into E. coli competent cells. Positive clones were identified by PCR and sequencing. The nucleotide sequences were submitted to GenBank. In addition, another seven common respiratory viruses in all samples were detected by direct immunofluorescence assay. In the 3 730 specimens, the KIPyV-positive rate was 12.14% (453/3 730) and the WUPyV-positive rate was 1.69% (63/3 730). The mean infection rate of KIPyV was significantly higher in June and July, while the mean infection rate of WUPyV peaked in February and March. Most of the KIPyV-positive or WUPyV-positive children were infections with KIPyV, WUPyV, and other respiratory viruses were observed in the children. The co-infection rate was 2.31% (86/3 730) and there were nine cases of co-infections with WUPyV and KIPyV. Thirty-five KIPyV-positive and twelve WUPyV-positive PCR products were sequenced and the alignment analysis showed that they had high homology with the known sequences (94%-100% vs 95%-100%). The VP1 gene sequences obtained from two KIPyV strains in this study were recorded in GenBank with the accession numbers of KY465925 and KY465926. For some children with acute respiratory infection in Tianjin, China, the acute respiratory infection may be associated with KIPyV and WUPy

  1. Overexpression of the NADP+-specific isocitrate dehydrogenase gene (icdA) in citric acid-producing Aspergillus niger WU-2223L.

    Science.gov (United States)

    Kobayashi, Keiichi; Hattori, Takasumi; Hayashi, Rie; Kirimura, Kohtaro

    2014-01-01

    In the tricarboxylic acid (TCA) cycle, NADP(+)-specific isocitrate dehydrogenase (NADP(+)-ICDH) catalyzes oxidative decarboxylation of isocitric acid to form α-ketoglutaric acid with NADP(+) as a cofactor. We constructed an NADP(+)-ICDH gene (icdA)-overexpressing strain (OPI-1) using Aspergillus niger WU-2223L as a host and examined the effects of increase in NADP(+)-ICDH activity on citric acid production. Under citric acid-producing conditions with glucose as the carbon source, the amounts of citric acid produced and glucose consumed by OPI-1 for the 12-d cultivation period decreased by 18.7 and 10.5%, respectively, compared with those by WU-2223L. These results indicate that the amount of citric acid produced by A. niger can be altered with the NADP(+)-ICDH activity. Therefore, NADP(+)-ICDH is an important regulator of citric acid production in the TCA cycle of A. niger. Thus, we propose that the icdA gene is a potentially valuable tool for modulating citric acid production by metabolic engineering.

  2. Age and gender distribution of Hepatitis C virus prevalence and genotypes of individuals of physical examination in WuHan, Central China.

    Science.gov (United States)

    Niu, ZhiLi; Zhang, PingAn; Tong, YongQing

    2016-01-01

    Approximately 170 million people in the world are infected with Hepatitis C virus (HCV). There are no published population based studies about the prevalence of HCV genotypes and the associations of genotype and Infection frequency with gender and age in WuHan. We aimed to investigate the distribution of HCV prevalence and genotypes among different gender and age patients with chronic HCV infection in WuHan from 2011 to 2015. A total of 2685 anti-HCV positive serum samples from individuals of physical examinationwere recruited from the Renmin Hospital of WuHan University, Hubei Province in China from January 2011 to December 2015. From these 2685 anti-HCV positive serum samples, 496 samples were with a positive PCR for HCV RNA. The number of HCV infection showed an increase with year, but the annual infection rate has remained similar (χ(2) = 2.94, P = 0.568). 2685 cases were infected with HCV from 2011 to 2015 in WuHan city of China. Blood transfusion (18.14 %) was the main routs of transmission, followed by Surgery (8.94 %). The highest prevalence of HCV infection was at the age group 50-59 (25.85 % of 2685) and the lowest prevalence was 0-9 (0.93 % of 2685). HCV genotype 1 was the most prevalent (73.39 %), followed by genotypes 2 (17.14 %), 3 (5.25 %) and 6 (3.22 %). Genotype 4 and 5 was not detected in these patients. The most prevalent subtype was subtype 1b (71.98 %), followed by genotypes 2a (17.14 %). Five patients had mixed infection across the HCV subtypes. Among all genotypes, genotype 1 was highest in both male (73.27 %) and female (73.47 %) patients, followed by genotype 2. Genotype 1 (male: 29.84 % of 496, vs female: 43.55 % of 496, χ(2) = 20.07, P < 0.0001), genotype 2 (male: 6.25 % of 496, vs female: 10.89 % of 496, χ(2) = 6.81, P = 0.009), and 6 (male: 1.41 % of 496, vs female: 1.81 % of 496, χ(2) = 0.626, P = 0.401) were more common in female patients than males, while no significant gender differences were

  3. Modification of Sako-Wu-Prausnitz equation of state for fluid phase equilibria in polyethylene-ethylene systems at high pressures

    Directory of Open Access Journals (Sweden)

    F. Gharagheizi

    2006-09-01

    Full Text Available In order to model phase equilibria at all pressures, it is necessary to have an equation of state. We have chosen the Sako-Wu-Prausnitz cubic equation of state, which had shown some promising results. However, in order to satisfy our demands, we had to modify it slightly and fit new pure component parameters. New pure component parameters have been determined for ethylene and the n-alkane series, using vapor pressure data, saturated liquid volume and one-phase PVT-data. For higher n-alkanes, where vapor pressure data are poor or not available, determination of the pure component parameters was made in part by extrapolation and in part by fitting to one-phase PVT-data. Using one-fluid van der Waals mixing rules, with one adjustable interaction parameter, good correlation of binary hydrocarbon system was obtained, except for the critical region. The extension of the equation of state to polyethylene systems is covered in this work. Using the determined parameters, flash and cloud point calculations were performed, and treating the polymer as polydisperse. The results fit data well.

  4. Inhibition of Neoplastic Transformation and Chemically-Induced Skin Hyperplasia in Mice by Traditional Chinese Medicinal Formula Si-Wu-Tang

    Directory of Open Access Journals (Sweden)

    Mandy M. Liu

    2017-03-01

    Full Text Available Exploring traditional medicines may lead to the development of low-cost and non-toxic cancer preventive agents. Si-Wu-Tang (SWT, comprising the combination of four herbs, Rehmanniae, Angelica, Chuanxiong, and Paeoniae, is one of the most popular traditional Chinese medicines for women’s diseases. In our previous studies, the antioxidant Nrf2 pathways were strongly induced by SWT in vitro and in vivo. Since Nrf2 activation has been associated with anticarcinogenic effects, the purpose of this study is to evaluate SWT’s activity of cancer prevention. In the Ames test, SWT demonstrated an antimutagenic activity against mutagenicity induced by the chemical carcinogen 7,12-dimethylbenz(aanthracene (DMBA. In JB6 P+ cells, a non-cancerous murine epidermal model for studying tumor promotion, SWT inhibited epidermal growth factor (EGF-induced neoplastic transformation. The luciferase reporter gene assays demonstrated that SWT suppressed EGF-induced AP-1 and TNF-α-induced NF-κB activation, which are essential factors involved in skin carcinogenesis. In a DMBA-induced skin hyperplasia assay in ‘Sensitivity to Carcinogenesis’ (SENCAR mice, both topical and oral SWT inhibited DMBA-induced epidermal hyperplasia, expression of the proliferation marker Proliferating cell nuclear antigen (PCNA, and H-ras mutations. These findings demonstrate, for the first time, that SWT prevents tumor promoter and chemical-induced carcinogenesis in vitro and in vivo, partly by inhibiting DNA damage and blocking the activation of AP-1 and NF-κB.

  5. Contamination and Human Health Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Oysters After the Wu Yi San Oil Spill in Korea.

    Science.gov (United States)

    Loh, Andrew; Yim, Un Hyuk; Ha, Sung Yong; An, Joon Geon; Kim, Moonkoo

    2017-07-01

    After the collision of the Singapore-registered oil tanker M/V Wu Yi San into the oil terminal of Yeosu, Korea on January 31, 2014, approximately 900 m3 of oil and oil mixture were released from the ruptured pipelines. The oil affected more than 10 km of coastline along Gwangyang Bay. Emergency oil spill responses recovered bulk oil at sea and cleaned up the stranded oil on shore. As part of an emergency environmental impact assessment, region-wide monitoring of oil contamination in oyster had been conducted for 2 months. Highly elevated concentrations of polycyclic aromatic hydrocarbons (PAHs) were detected at most of the spill affected sites. Four days after the spill, the levels of PAHs in oysters increased dramatically to 627-81,000 ng/g, the average of which was 20 times higher than those found before the spill (321-4040 ng/g). The level of PAHs in these oysters increased until 10 days after the spill and then decreased. Due to the strong tidal current and easterly winter winds, the eastern part of the Bay-the Namhae region-was heavily contaminated compared with other regions. The accumulation and depuration of spilled oil in oyster corresponded with the duration and intensity of the cleanup activities, which is the first field observation in oil spill cases. Human health risk assessments showed that benzo[a]pyrene equivalent concentrations exceeded levels of concern in the highly contaminated sites, even 60 days after the spill.

  6. The influence of essential oils from Xiang-Fu-Si-Wu Decoction on its non-volatile components and its application for pharmacokinetics in normal rats.

    Science.gov (United States)

    Pan, Ying; Qian, Dawei; Liu, Pei; Zhang, Yang; Zhu, Zhenhua; Zhang, Li; Duan, Jin-Ao

    2017-08-15

    Xiang-Fu-Si-Wu Decoction (XFSWD) has been used to treat gynecology diseases in clinical practice for hundreds of years in China, especially for primary dysmenorrheal of QiZhi Type. In previous researches, both essential oils (XEO) and non-volatile components (NXEO) extracted from XFSWD showed significant pharmacological activities, but the influence of XEO on NXEO was unclear. The purpose of this paper was to develop a validated analytical method for simultaneous determination of ten components including Vanillic acid, Ferulic acid, Caffeic acid, Gallic acid, Paeoniflorin, Albiflorin, Tetrahydropalmatine, Protopine, Berberine and Tetrahydrocolumbamine, and to compare the pharmacokinetic parameters of these components to illustrate the influences of XEO on NXEO in normal rats. After being extracted by methanol (1:3, v/v), the plasma samples were analyzed with Clarithromycin (IS 1 ) and Chloramphenicol (IS 2 ) as mixed internal standard (IS). Then the analytes were separated on a ACQUITY UPLC BEH C 18 (100×2.1mm, 1.7μm) column with gradient mobile phase (containing 0.1% formic acid aqueous solution and acetonitrile) at a flow rate of 0.4mL/min. All analytes and mixed IS were performed on an electrospray ionization source (ESI) using multiple-reaction monitoring (MRM) with positive and negative ionization mode. The calibration curves of all the analytes showed good linearity (r >0.99), and the lower limits of quantification (LLOQ) were 0.66-46.88ng/mL. The intra- and inter-day precisions ranged 1.24-12.45% and 2.49-13.24% for all the analytes. The mean extraction recoveries of the analytes were in the range of 73.10-93.71% and the average matrix effects were within 82.39-93.18%. The validated method has been fully applied to compare the pharmacokinetic parameters of ten components in rat plasma after oral administration of NXEO, NXEO+β-cyclodextrin (β-CD), NXEO+XEO, and NXEO+β-XEO (the inclusion of XEO by β-CD). It was found that the area under the concentration

  7. 吴燕平分期治疗经期延长的经验%Experience of Wu Yanping in Treating Prolonged Menstruation with the Method of the Installment of Governance

    Institute of Scientific and Technical Information of China (English)

    左海红; 吴燕平

    2013-01-01

    [目的]总结吴燕平教授分期治疗经期延长的经验.[方法]分别从病因病机、辨证与辨病结合、分期论治等方面论述吴燕平教授治疗经期延长的经验.[结果]本病病机多为“虚、热、瘀”,与肾和冲任关系密切.根据以上病机,提倡辨证与辨病相结合,西医明确病因,中医辨证论治,分期治疗.用药组方多从脾肾入手,攻补兼施,标本兼治.[结论]吴燕平教授采用分期论治,健脾益肾的综合疗法,调整月经周期,调节内分泌,缩短经期,疗效明显.%[Objecrive]The article summarized and discoursed the experience of professor Wu Yanping treating prolonged menstruation with the method of the installment of governance. [Method] Discoursed the experience of professor Wu Yanping treating prolonged menstruation from cause of disease,ptho-genesis.combination of syndrome differentiation and disease.installment of governance and so on.[Result]The cause of disease and pthogenesis are "debilita-tion,heat,stasis".The disease closely relates to kidney, thoroughfare and conception vessels. Professor Wu Yanping advocated the combination of syndrome differentiation and disease and installment of governance according to the cause of disease and pthogenesis.Western medicine makes the causes clear.and TCM treats disease based on syndrome differentiation.The formula mainly relates to spleen and kidney .The treatments combinate both the reinforcement and elimination,and focus on relieving both the secondary and primary symptoms. [Conclusions] Wu Yanping takes stage treatment, the comprehensive therapy of reinforcing spleen to nourish kidney, regulates endocrine and shortens menstruation, with good cure effect.

  8. Un imaginaire dévoilé/déphasé. Stratégies narratives et mémoire culturelle dans le roman 54 des Wu Ming

    Directory of Open Access Journals (Sweden)

    Matteo Martelli

    2015-02-01

    Full Text Available This essay analyses the narrative strategies through which cultural memory is portrayed in 54, a novel in which Wu Ming (a collective of four Italian fiction writers suggests a literary mapping of the Fifties. This is obtained by a recovery of a shared imaginary tradition which is close to the reader, mixing fictional and historical characters, films, books, different genres of popular literature. Nevertheless, the rewriting of these imaginary traditions involves their displacement, a presentation which is constantly created from an unusual point of view. Thus, shifting the image of what is already known, the text inquires into several modalities of a questioning about cultural memory and its redefinition in relation to contemporary culture. By focusing on these elements, this study proposes an analysis which starts from the construction of the characters, the role of suspense and the adoption of multiple traditions of novel writing.

  9. Retracted: Sirt3 activation attenuated oxidized low-density lipoprotein-induced human umbilical vein endothelial cells' apoptosis by sustaining autophagy by Luo, X, Yang, Z, Zheng, S, Cao, Y and Wu, Y.

    Science.gov (United States)

    2017-08-01

    The above article, published online on 05 May 2014 in Wiley Online Library (http://onlinelibrary.wiley.com/doi/10.1002/cbin.10291/full), has been retracted by agreement between the authors, the journal Editor, Sergio Schenkman, and John Wiley & Sons Ltd. The retraction has been agreed because the authors discovered that the results of section 3 in this paper were irreproducible. In addition, Zhiqiang Yang, a co-author, states conflict of interest in this paper. The authors and publisher apologize for any inconvenience. Reference Luo X, Yang Z, Zheng S, Cao Y, Wu Y (2014) Sirt3 activation attenuated oxidized low-density lipoprotein induced human umbilical vein endothelial cells' apoptosis by sustaining autophagy. Cell Biol Int, https://doi.org/10.1002/cbin.10291. © 2017 International Federation for Cell Biology.

  10. Study to establish Ojeok-San (Five Accumulation Powder: wu ji san) administration criteria and a questionnaire to evaluate the holistic effects of Ojeok-San on patients with low back pain.

    Science.gov (United States)

    Kim, Eun-Jung; Nam, Dongwoo; Ahn, Byung-Jin; Lee, Seung-Deok; Lee, Jae-Dong; Kim, Kap-Sung

    2013-11-01

    The study objectives were to establish ojeok-san (Five Accumulation Powder: wu ji san) administration criteria and a questionnaire to evaluate the holistic effects of ojeok-san on patients with low back pain (LBP). Texts and literatures, recommended by specialists, were searched to gather ojeok-san-related symptoms. Then, the opinions of Oriental medicine doctors (OMDs) practicing in Seoul were surveyed to ask which symptoms they consider the most in clinical practice. Based on the survey, selection of potential items for the questionnaire was made. The final version was established based on the results of the survey and Delphi process of musculoskeletal diseases specialists. In order to evaluate the reliability and validity of the newly developed assessment tool (Ojeok-san Low Back Questionnaire: OLQ), patients with chronic LBP were recruited. OLQ and other tools such as visual analogue scale, numeric rating scale, Roland-Morris Disability Questionnaire, Modified-Modified Schober test, and 36-Item Short Form Health Survey were applied to the subjects in a 2-week interval. Test-retest reliability, internal consistency, and convergent and discrimination validity were assessed. A total of 90 potential items were generated by the research team. One hundred and two (102) OMDs fully replied to the survey. Based on the survey results, 34 items were initially selected as potential items. Through Delphi method of experts, 10 top items, rated more than 5 points on a scale of 10, were finally established. The 10 items were each established as a response scale of 0-10 (0 as no symptom and 10 as the most excessive form of symptom). Based on the above stages, an initial OLQ was established and used in the evaluation phase. The validity and reliability of OLQ assessment results showed high test-retest reliability, intraclass correlation coefficient, and internal consistency. The newly developed Ojeok-san administration criteria and questionnaire may be a promising tool for

  11. Reply to the comment by Wu et al. (2016) on "Behavior of Re and Os during contact between an aqueous solution and oil: Consequences for the application of the Re-Os geochronometer to petroleum" [Geochim. Cosmochim. Acta 158 (2015) 1-21

    Science.gov (United States)

    Reisberg, Laurie; Michels, Raymond; Mahdaoui, Fatima

    2016-08-01

    We reply here to the questions raised by Wu et al. concerning the results published by Mahdaoui et al. (2015). This paper describes experiments in which aqueous solutions containing ReO4- and OsCl62- were brought in contact with natural oils at various ranges of concentration, time and temperature. The main observation is that the transfer of Re and Os to oils is very efficient under all experimental conditions. Wu et al. argue that thermodynamic equilibrium was not achieved in these experiments as apparent partition coefficients are inconsistent. They conclude that the experiments were flawed by possible leaking of reactors and that the conclusions by Mahdaoui et al. (2015) were not justified. In the following reply we explain that Mahdaoui et al. (2015) never claimed that thermodynamic equilibrium was achieved. Any calculations or considerations in this context are therefore meaningless. We recall the objectives of our publication, which were to experimentally test the behavior of ReO4- and OsCl6- (two plausible chemical forms of Re and Os in deep aquifers of petroleum systems) in aqueous solution-oil systems. To our knowledge these are the first experiments of their kind. The parameters that could influence the precision and reproducibility of our results were discussed in detail in Mahdaoui et al. (2015). The essential point is that all 60 of the experiments provide evidence of substantial transfer of Re and Os from water to oil. In contrast to what was mistakenly understood by Wu et al., the paper does not challenge the use of Re-Os to date geological events affecting petroleum. Instead, by providing a mechanism that might allow Os isotopic homogenization on a basin-wide scale, a critical step missing from most current models, it offers a possible explanation of how Re-Os geochronology in oils could potentially work. More generally, our study suggests that transfer of Re and Os from waters to oil may be an important phenomenon that should not be overlooked.

  12. Retraction: "Screening of candidate genes and fine mapping of drought tolerance quantitative trait loci on chromosome 4 in rice (Oryza sativa L.) under drought stress" by Nie, Y. Y., L. Zhang, Y. H. Wu, H. J. Liu, W. W. Mao, J. Du, et al.

    Science.gov (United States)

    2016-01-01

    The above article, published online on 15 October 2015 in Wiley Online Library (http://onlinelibrary.wiley.com/doi/10.1002/ece3.1786/abstract), has been retracted by agreement between the authors, the journal Editor in Chief, Allen Moore, and John Wiley & Sons Ltd. The authors have requested the retraction of their paper because they mistakenly analyzed the wrong backcross lines. This mistake was only recently discovered and they are now in the process of repeating the experiment using the correct Backcross Introgression Lines. The authors apologize for this mistake. Nie, Y. Y., L. Zhang, Y. H. Wu, H. J. Liu, W. W. Mao, J. Du, et al. 2015. Screening of candidate genes and fine mapping of drought tolerance quantitative trait loci on chromosome 4 in rice (Oryza sativa L.) under drought stress. Ecology and Evolution 5(21):5007-5015. doi: 10.1002/ece3.1786. [This retracts the article DOI: 10.1002/ece3.1786.].

  13. Adapting Shakespeare from Western Drama to Chinese Opera | Wu ...

    African Journals Online (AJOL)

    Two hundred and forty years after his death, Shakespeare was introduced to China. It was in 1856 that the British missionary William Muirhead mentioned the Bard of Avon in his Chinese translation of British history. In 1878, the first Chinese ambassador in Britain, Guo Song-tao, saw a performance of a Shakespeare play at ...

  14. The Vicissitudes of Walden | Wu | Marang: Journal of Language and ...

    African Journals Online (AJOL)

    Applying the American philosopher Charles Sanders Peirce's semiotics to the reading of Walden Pond, leads to a discovery that the meanings of the pond can never be fixed or static, but will always be vicissitudinous. This insight underscores the point that any analysis of Walden that attempts to adopt a fixed focus is ...

  15. Supply chain management in selected clothing retail businesses / Jianling Wu

    OpenAIRE

    Wu, Jianling

    2004-01-01

    In today's highly competitive, global market place the pressure on organizations to find new ways to create and deliver value to customers grows ever strong. At the same time, market maturity combined with new sources of global competition has led to over-capacity in many industries leading to an inevitable pressure on price. Managers are increasingly interested in actively managing their supply chains because of environmental changes. The study is aimed to identify the importa...

  16. N(HI) and Jet Power/Emission in AGNs Zhongzu Wu1,∗ , Minfeng ...

    Indian Academy of Sciences (India)

    Abstract. Neutral hydrogen (HI) 21-cm absorption has been detected against very powerful radio jets. In this paper, based on Gupta's sample. (Gupta et al. 2006), we present our preliminary study of the correlations between the HI column density N(HI) and the jet power, N(HI) versus the low frequency luminosity at 408 MHz, ...

  17. Reviving ancient Chinese mathematics mathematics, history and politics in the work of Wu Wen-Tsun

    CERN Document Server

    Hudecek, Jiri

    2014-01-01

    Twentieth-century China has been caught between a desire to increase its wealth and power in line with other advanced nations, which, by implication, means copying their institutions, practices and values, whilst simultaneously seeking to preserve China's independence and historically formed identity. Over time, Chinese philosophers, writers, artists and politicians have all sought to reconcile these goals and this book shows how this search for a Chinese way penetrated even the most central, least contested area of modernity: science.Reviving Ancient Chinese Mathematics is a study of the life

  18. Restoration and source identification of polycyclic aromatic hydrocarbons after the Wu Yi San oil spill, Korea.

    Science.gov (United States)

    Jang, Yu Lee; Lee, Hyo Jin; Jeong, He Jin; Park, Shin Yeong; Yang, Won Ho; Kim, Heung-Yun; Kim, Gi Beum

    2016-10-15

    On January 31, 2014, an oil spill accident occurred in Yeosu, South Korea. A total 800-899kl of oil from the pipeline was spilled into the sea. After the oil spill, the KIOST (Korea Institute of Ocean Science & Technology) researched PAHs (polycyclic aromatic hydrocarbons) in various media, but sedimentary PAHs were not analyzed despite their longer persistency than in other media. Therefore, this study examined PAH levels in intertidal sediments around Gwangyang Bay and identified PAH sources using oil fingerprinting. PAH residual levels showed a dramatic decrease during the four months after the accident and then remained at a relatively constant level. Analysis through regression equations indicate that this study area is likely to be restored to the PAH levels prior to the accident. Furthermore, the source analysis and oil fingerprinting analysis showed that PAH contamination in this study was unlikely to have originated from the spilled oil. Copyright © 2016. Published by Elsevier Ltd.

  19. BN~r" .wU1!9 1\\ I

    Indian Academy of Sciences (India)

    email, postal and residential address, telephone numbers, academic qualifications starting from B.Sc 'onwards, teaching experience, courses taught, positions held and a statement indicating reasons for interest in participating in the course. Teachers applying for participation are also requested to indicate that necessary ...

  20. You Wei and Wu Wei: Ambivalence of Chinese outbound mergers and acquisitions

    NARCIS (Netherlands)

    Sun, Z.

    2016-01-01

    China is assuming an increasingly prominent position in the world economy as the investment begins to flow from China to the world. Compared to the ‘West goes to China’, the institutional environment, the cultural roots and the corresponding managerial behaviours are quite distinct. These distinct

  1. Analysing the Wu metric on a class of eggs in Cn–II

    Indian Academy of Sciences (India)

    Author Affiliations. G P BALAKUMAR1 PRACHI MAHAJAN2. Indian Statistical Institute, Chennai 600 113, India; Department of Mathematics, Indian Institute of Technology – Bombay, Mumbai 400 076, India ...

  2. Effect of Zhen-wu decoction on chronic heart failure in rats

    African Journals Online (AJOL)

    legislation_en.htm. 16. Seddon M, Looi YH, Shah AM. Oxidative stress and redox signalling in cardiac hypertrophy and heart failure. Heart 2006; 12: 131-138. 17. Azevedo PS, Minicucci MF, Santos PP. Energy metabolism in cardiac remodeling and ...

  3. Estimating Black Hole Masses of Blazars Xue-Bing Wu1,∗ , FK Liu1 ...

    Indian Academy of Sciences (India)

    Using this technique, the BLR size can be measured using the time lag between variations of continuum and emission line fluxes. The black hole mass can be derived from the BLR size and the characteristic velocity using the virial law. So far, reverberation mapping studies have yielded black hole masses of about 40.

  4. Molecular epidemiology of WU polyomavirus in hospitalized children with acute respiratory tract infection in China.

    Science.gov (United States)

    Zhu, Teng; Lu, Qing-Bin; Zhang, Shu-Yan; Wo, Ying; Zhuang, Lu; Zhang, Pan-He; Zhang, Xiao-Ai; Wei, Wei; Liu, Wei

    2017-05-01

    To explore the molecular epidemiology and clinical characteristics of Washington University polyomavirus (WUPyV) infection in pediatric patients with acute respiratory tract infections in China. A laboratory surveillance was performed to recruit pediatric patients with acute respiratory tract infections. WUPyV was detected using real-time PCR and complete genome was sequenced for randomly selected positive nasopharyngeal aspirate. Altogether 122 (7.5%) of 1617 children found to be infected with WUPyV and 88 (72.1%) were coinfected with other viruses during 2012-2015. The phylogenetic analysis showed that 14 strains from our study formed two new clusters (Id and IIIc) within the Branch I and Branch III, respectively. WUPyV is persistently circulating in China. Surveillance on WUPyV infection in wider areas and long persistence is warranted.

  5. Effect of healthy Qigong “WuQinXi” exercise on peripheral blood T ...

    African Journals Online (AJOL)

    USER

    2010-07-19

    Jul 19, 2010 ... tation in order to enhance their TCC skills and provide an exercise cool-down. All participants were asked to continue their normal living routines without restricting their diets or altering their eating habits. After 3 months (when subjects had fasted for at least 8 h), blood was collected, centrifuged at 3500 rpm ...

  6. Analysing the Wu metric on a class of eggs in ℂn – I

    Indian Academy of Sciences (India)

    G P BALAKUMAR

    imal metric η, form a new metric whose unit ball about the origin in each tangent space, is the ellipsoid of minimal volume containing the unit ball with respect to η. By an ellip- soid, we mean the image of a ball in the standard l2-norm, under a linear automorphism of. Cn. As ellipsoids furnish the simplest compact convex sets ...

  7. Effect of Zhen-wu decoction on chronic heart failure in rats | Liu ...

    African Journals Online (AJOL)

    Tropical Journal of Pharmaceutical Research. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 16, No 10 (2017) >. Log in or Register to get access to full text downloads.

  8. 實徵研究/Information Literacy in the Workplace: A Cross-cultural Perspective/Yuhfen Diana Wu

    Directory of Open Access Journals (Sweden)

    Yuhfen Diana Wu Yuhfen Diana Wu

    2012-04-01

    Full Text Available This cross-cultural study has two main purposes: to investigate how information literacy is perceived in the workplace and to discover how employees obtain information to carry out their jobs in an effective and timely fashion. This project applies a mix of research methods, including site visits, interviews, and a survey. More than 120 participants from forty companies were involved in this study. They were from a wide variety of industries in Taiwan and Silicon Valley, in Northern California, where many companies base offices or operations from around the world. Major obstacles in conducting cross-continent research are cost, time demands, scheduling, and adaptation to local culture. In this global economy, cross-cultural and cross-border research will help educators, such as librarians, understand the complexity of skills expected in the workplace. Much has been written on information literacy, yet very few can relate how information literacy is applied in the workplace. This primary study sheds some light to help academic librarians reposition themselves as researchers-educators integral to student success. 本論文為一跨文化性的研究,具有兩個主要目的:一是探討在職場中對於資訊素養的認知;二是探討員工如何及時有效的獲取和應用資訊來執行自己的任務。本研究採用混合式研究方法,包括實地考察、訪談和問卷調查。研究對象來自北加州矽谷和臺灣40家企業的120多名員工,他們分別從事不同行業。其中許多世界級的跨國企業選擇矽谷或臺灣作為公司總部或世界營運樞紐。進行跨洲研究的主要阻礙包括經費、時間、行程安排與適應當地的文化。跨文化和跨國界的研究將有助於教育工作者,如圖書館員,了解職場上所需技能的複雜性。目前已出版許多關於資訊素養的文獻,僅少涉及職場上資訊素養的應用。由於學術圖書館員在學生的學習過程中扮演不可或缺的角色,此初步研究,可幫助學術圖書館員重新為自己定位。 頁次:84-104

  9. A computational exploration of the McCoy-Tracy-Wu solutions of the third Painlevé equation

    Science.gov (United States)

    Fasondini, Marco; Fornberg, Bengt; Weideman, J. A. C.

    2018-01-01

    The method recently developed by the authors for the computation of the multivalued Painlevé transcendents on their Riemann surfaces (Fasondini et al., 2017) is used to explore families of solutions to the third Painlevé equation that were identified by McCoy et al. (1977) and which contain a pole-free sector. Limiting cases, in which the solutions are singular functions of the parameters, are also investigated and it is shown that a particular set of limiting solutions is expressible in terms of special functions. Solutions that are single-valued, logarithmically (infinitely) branched and algebraically branched, with any number of distinct sheets, are encountered. The algebraically branched solutions have multiple pole-free sectors on their Riemann surfaces that are accounted for by using asymptotic formulae and Bäcklund transformations.

  10. Enhanced high temperature performance of LiMn2O4 coated with ...

    Indian Academy of Sciences (India)

    Author Affiliations. Liu Jinlian1 Wu Xianming1 2 Chen Shang1 2 Liu Jianben1 2 He Zeqiang1 2. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China; Xiangxi Ores and New Materials Development and Service Centre, Jishou 416000, China ...

  11. Impacts of land use change scenarios on hydrology and land use patterns in the Wu-Tu watershed in Northern Taiwan

    NARCIS (Netherlands)

    Lin Yu-Pin,; Hong Nien-Ming,; Wu Pei-Jung,; Wu Chen-Fa,; Verburg, P.H.

    2007-01-01

    Developing an approach for simulating and assessing land use changes and their effects on land use patterns and hydrological processes at the watershed level is essential in land use and water resource planning and management. This study provided a novel approach that combines a land use change

  12. 圖書館事業與交流/The Relationship of Leadership Development and Learning Organization Dimensions/Connie K. Haley, Yuhfen Diana Wu

    Directory of Open Access Journals (Sweden)

    Connie K. Haley, Yuhfen Diana Wu Connie K. Haley, Yuhfen Diana Wu

    2011-10-01

    Full Text Available This research examined the relationship among learning organization dimensions, leadership development, employee development, and their interactions with two demographic variables (gender and ethnicity in the context of libraries. The researchers conducted a multivariate analysis of the variance to assess the differences by leadership training groups (low training hours vs. high training hours, or by gender; and by workplace training groups (low vs. high, or by ethnicity (white vs. all others on a linear combination of the seven dimensions of the learning organization. A conclusive summary is provided along with contributive discussion. Implications and contributions to librarians are discussed in addition to future research recommendations. Also included are conclusive final thoughts accompanied by the limitations of this research. 本研究旨在探討美國圖書館界學習型組織,領導智能與員工發展之間的關系,以及它們與兩項人口變量(性別、種族)的相互作用。作者採用線性組合研究了學習型組織的七個範疇,並且使用多變量變異數分析方法來評估領導智能培訓組的差異(培訓時數多寡對比),在職培訓組的差異(培訓時數多寡對比),及種族的差異(白人或其他族裔對比)。除了討論未來研究方向的建議,作者並提供人力資源發展工作者和圖書館員一些啟示。研究最後提出作者的想法及本研究的侷限性。 頁次:146-165

  13. Ambient air particulate concentrations and metallic elements principal component analysis at Taichung Harbor (TH) and WuChi Traffic (WT) near Taiwan Strait during 2004-2005.

    Science.gov (United States)

    Fang, Guor-Cheng; Wu, Yuh-Shen; Wen, Chih-Chung; Huang, Shih-Han; Rau, Jui-Yeh

    2006-09-01

    The purpose of this study is to characterize metallic elements associated with atmospheric particulate matter of total suspended particulate (TSP), fine particle (particle matter with aerodynamical diameter metallic elements Fe and Zn. And in WT sampling site, higher correlation coefficients displayed on total suspended particulates of metallic elements Fe and Zn, Fe and Mn. Ambient airborne particle principal component analysis of metallic metals was used to identify the possible pollutant sources in this study. At the TH sampling site, 50.81% of the total variance of the data was observed in factor 1. Higher loading of Fe (0.86), Zn (0.79), Pb (0.76), and Mn (0.68) were contributed by traffic emission and the soil source. At the WT sampling site, factor 1 explained 53.74% of the total variance of the data and had high loading for Zn (0.86) and Cu (0.85), which were identified as industrial/traffic emission sources.

  14. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. Ding Wu. Articles written in Journal of Biosciences. Volume 41 Issue 2 June 2016 pp 229-236 Article. Silencing of HMGA2 promotes apoptosis and inhibits migration and invasion of prostate cancer cells · Zhan Shi Ding Wu Run Tang Xiang Li Renfu Chen Song Xue Chengjing Zhang ...

  15. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    236 Article. Silencing of HMGA2 promotes apoptosis and inhibits migration and invasion of prostate cancer cells · Zhan Shi Ding Wu Run Tang Xiang Li Renfu Chen Song Xue Chengjing Zhang Xiaoqing Sun · More Details Abstract Fulltext PDF.

  16. Identification of bacterial strains in viili by molecular taxonomy and ...

    African Journals Online (AJOL)

    Identification of bacterial strains in viili by molecular taxonomy and their synergistic effects on milk curd and exopolysaccharides production. T Chen, Q Tan, M Wang, S Xiong, S Jiang, Q Wu, S Li, C Luo, H Wei ...

  17. Substance abuse and rehabilitation: responding to the global burden of diseases attributable to substance abuse

    OpenAIRE

    Li-Tzy Wu

    2010-01-01

    Li-Tzy Wu*Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Duke University Medical Center, Durham, NC, USA *Li-Tzy Wu is the Editor-in-Chief of Substance Abuse and RehabilitationAbstract: Alcohol, tobacco, and illegal drug use are pervasive throughout the world. Substance use problems are among the major contributors to the global disease burden, which includes disability and mortality. The benefits of treatment far outweigh the economic costs. Despite the...

  18. Some additional considerations in modelling the dynamic traits and genome-wide association studies. Comments on "Mapping complex traits as a dynamic system" by L. Sun and R. Wu

    Science.gov (United States)

    Das, Kiranmoy

    2015-06-01

    The revolution in the genetic research in our time is mainly due to (i) the successful completion of human genome project (2003) and its derivative hapmap project (2005), (ii) advanced statistical methodologies for analyzing ultrahigh dimensional data and (iii) the availability of statistical softwares (R, SAS etc.) to analyze large datasets. When complex traits are to be modeled as dynamic systems, the statistical issues regarding the complexity in the model, predictive power of the model, computational cost etc. are to be addressed adequately for powerful inferences. I will mention two additional considerations (statistical) which make dynamic models more meaningful and the results from GWAS more reliable.

  19. Analisis harf واو العاملة /wāwu al-‘āmilah/ dalam Al-Qur`an Juz 30

    OpenAIRE

    Fatahillah, Muhammad

    2012-01-01

    و اسباب احتيار هذا الموضوع لأن حرف واو العاملة في جزء ثلاثين من القران لها انواع و عامل و اعراب مختلفة عند اتصل باية . و اما الغرض الأقصى من هذا البحث هي لتعريف نوع و عامل و اعراب حرف واو العاملة في جزء ثلاثين من القران. , فا الكاتب يستعمل نظرية ما تقدمها شيخ "غلايينى" في كتابه "جامع الدروس العربية" فاما هذا البحث هي الدراسية المكتبية التي تستعمل طريقة الإستنتاجية. و الحاصلات من هذا البحث ان عدد حرف واو العاملة في جزء ثلاثين من القران ١٧٨حرفا, منها ١١ حرف واو قسم الذ...

  20. Parental Choice of School, Class Strategies, and Educational Inequality: An Essay Review of "School Choice in China--A Different Tale?" (X. Wu, New York, NY: Routledge, 2014, 168 pp. ISBN 978-0-415-81769-1)

    Science.gov (United States)

    Liu, Shuning; Apple, Michael W.

    2016-01-01

    Given the increasingly global nature of marketized school choice policies, this makes it even more crucial to investigate how the multiple scales, forms, and emphases of school choice in different countries are influenced by particular political, economic, and cultural conditions. While much of the critical research on school choice policies has…

  1. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Genetics. SHIJIE LI. Articles written in Journal of Genetics. Volume 94 Issue 3 September 2015 pp 391-395 Research Article. Biallelic expression of Tssc4, Nap1l4, Phlda2 and Osbpl5 in adult cattle · Mengnan Wang Dongjie Li Mingyue Zhang Wenzhi Yang Guojiang Wu Yali Cui Shijie Li.

  2. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Genetics. DONGJIE LI. Articles written in Journal of Genetics. Volume 94 Issue 3 September 2015 pp 391-395 Research Article. Biallelic expression of Tssc4, Nap1l4, Phlda2 and Osbpl5 in adult cattle · Mengnan Wang Dongjie Li Mingyue Zhang Wenzhi Yang Guojiang Wu Yali Cui Shijie Li.

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Li Yajiang. Articles written in Bulletin of Materials Science. Volume 24 Issue 6 December 2001 pp 639-642 Alloys and Steels. Fine structure at the diffusion welded interface of Fe3Al/Q235 dissimilar materials · Wang Juan Li Yajiang Wu Huiqiang · More Details Abstract Fulltext ...

  4. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Genetics. WENZHI YANG. Articles written in Journal of Genetics. Volume 94 Issue 3 September 2015 pp 391-395 Research Article. Biallelic expression of Tssc4, Nap1l4, Phlda2 and Osbpl5 in adult cattle · Mengnan Wang Dongjie Li Mingyue Zhang Wenzhi Yang Guojiang Wu Yali Cui Shijie Li.

  5. A novel deletion mutation of the ADAR1 gene in a Chinese patient ...

    Indian Academy of Sciences (India)

    A novel deletion mutation of the ADAR1 gene in a Chinese patient with dyschromatosis symmetrica hereditaria ... University School of Medicine, 305 East Zhongshan Road, Nanjing 210002, People's Republic of China. [Li W.-W., Wu Q.-Y., Li N., Deng D.-Q., ... The products were sequenced directly using an ABI Prism 3700 ...

  6. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    pp 77-80 Research Note. Genetic diversity analysis of five cattle breeds native to China using microsatellites · Guo Li Zhou Hai Guo Jin Qi Zhu Shan Li Guo Yu Hou Wu · More Details Fulltext PDF. pp 81-84 Research Note. Orchid flower evolution · J. D. Rajkumari R. S. Longjam · More Details Fulltext PDF. pp 85-86 Obituary.

  7. Expression and imprinting of DIO3 and DIO3OS genes in Holstein ...

    Indian Academy of Sciences (India)

    WENZHI YANG1 DONGJIE LI2 GUANNAN WANG1 XIHONG WU1 MINGYUE ZHANG1 CUI ZHANG1 YALI CUI1 SHIJIE LI1. Department of Biochemistry and Molecular Biology, College of Life Science, Hebei Agriculture University, Baoding 071001, People's Republic of China; College of Life Science and Life Engineering, ...

  8. Determination and Distribution Study of Pogostone in Rat Tissues by ...

    African Journals Online (AJOL)

    Determination and Distribution Study of Pogostone in Rat Tissues by Ultra-Fast Liquid Chromatography. HM Chen, L Wang, XL Wu, CW Li, YL Xie, YH Liu, YZ Liang, XY Chen, XP Lai, JN Chen, YC Li, ZR Su ...

  9. AcEST: BP915174 [AcEST

    Lifescience Database Archive (English)

    Full Text Available >tr|A8WU00|A8WU00_CAEBR CBR-ABTS-3 protein OS=Caenorhabditis briggsae GN=Cbr-abts-3 PE=4 SV=2 Length = 1016 ...sis protein OS=B... 33 9.1 tr|A8WU00|A8WU00_CAEBR CBR-ABTS-3 protein OS=Caenorhab

  10. Correction: Long, H. et al. More Wind Power Integration with Adjusted Energy Carriers for Space Heating in Northern China. Energies 2012, 5, 3279-3294.

    Directory of Open Access Journals (Sweden)

    Li Guo

    2012-11-01

    Full Text Available In the original version of the article published in Energies [1], insufficient acknowledgement was given for the contributors Mr. Li Guo and Prof. Kai Wu in Xi’an Jiaotong University. The main work was completed by the research group in Xi’an Jiaotong University led by Prof. Kai Wu.  Mr. Li Guo was his master student who gave a lot of efforts in the measurement of daily loads of heating and electricity in different families, and his data was used in Section 2.1. Prof. Kai Wu was involved in the whole work; he put forward the basic idea, made the research plan and participated in the detailed discussion about the algorithm for calculation. [...

  11. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. XIAOQING SUN. Articles written in Journal of Biosciences. Volume 41 Issue 2 June 2016 pp 229-236 Article. Silencing of HMGA2 promotes apoptosis and inhibits migration and invasion of prostate cancer cells · Zhan Shi Ding Wu Run Tang Xiang Li Renfu Chen Song Xue ...

  12. The Role of Polymerase Gamma Mutations in Breast Tumorigenesis

    Science.gov (United States)

    2011-01-01

    Chau GY, Wu YT, Li SH, Lui WY, et al. Alteration of the copy number and deletion of mitochondrial DNA in human hepatocellular carcinoma. Br. J...481–484. [PubMed: 16020738] 47. Alonso A, Martin P, Albarran C, Aquilera B, Garcia O, Guzman A, et al. Detection of somatic mutations in the

  13. Role of Polymerase Gamma Mutations in Breast Tumorigenesis

    Science.gov (United States)

    2010-08-01

    HC, Chau GY, Wu YT, Li SH, Lui WY, et al. Alteration of the copy number and deletion of mitochondrial DNA in human hepatocellular carcinoma. Br. J...2005;309:481–484. [PubMed: 16020738] 47. Alonso A, Martin P, Albarran C, Aquilera B, Garcia O, Guzman A, et al. Detection of somatic mutations in the

  14. LcMKK, a MAPK kinase from Lycium chinense, confers cadmium ...

    Indian Academy of Sciences (India)

    induced endogenous salicylic acid and overexpression of this gene enhances tolerance to cadmium stress in Arabidopsis. Plant. Cell Rep. 34, 871–884. Guan C., Ji J., Wu D., Li X., Jin C., Guan W. et al. 2015b The glutathione synthesis may be regulated by cadmium-induced endogenous ethylene in Lycium chinense, and ...

  15. Genomewide identification, classification and analysis of NAC type ...

    Indian Academy of Sciences (India)

    Xiaojian Peng, Yang Zhao, Xiaoming Li, Min Wu, Wenbo Chai, Lei Sheng, Yu Wang, Qing Dong,. Haiyang Jiang and Beijiu Cheng. J. Genet. 94, 377–390. Table 1. Detailed information of NAC proteins in maize. Gene name. Sequence ID. Chromosome. Size (aa). Mass (da). pI. ZmNAC1. GRMZM2G406204_P01. 1. 664.

  16. Browse Title Index

    African Journals Online (AJOL)

    Items 6451 - 6500 of 11090 ... Vol 9, No 23 (2010), Inhibition of inflammatory factors by parthenolide in human renal mesangial cells under hyperglycemic condition, Abstract PDF. W Wang, F Wu, Y Qian, L Cheng, X Shao, X Tong, H Li. Vol 5, No 12 (2006), Inhibition of paracetamol-induced oxidative stress in rats by extracts of ...

  17. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Run Tang. Articles written in Journal of Biosciences. Volume 41 Issue 2 June 2016 pp 229-236 Article. Silencing of HMGA2 promotes apoptosis and inhibits migration and invasion of prostate cancer cells · Zhan Shi Ding Wu Run Tang Xiang Li Renfu Chen Song Xue Chengjing Zhang Xiaoqing Sun · More Details Abstract ...

  18. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. RENFU CHEN. Articles written in Journal of Biosciences. Volume 41 Issue 2 June 2016 pp 229-236 Article. Silencing of HMGA2 promotes apoptosis and inhibits migration and invasion of prostate cancer cells · Zhan Shi Ding Wu Run Tang Xiang Li Renfu Chen Song Xue Chengjing ...

  19. Spatiotemporal soliton clusters in the (3+ 1)-dimensional nonlinear ...

    Indian Academy of Sciences (India)

    Logo of the Indian Academy of Sciences. Indian Academy of Sciences. Home · About ... Home; Journals; Pramana – Journal of Physics; Volume 89; Issue 3. Spatiotemporal soliton clusters in the ( 3 + ... HONG-YU WU1 LI-HONG JIANG1. College of Engineering and Design, Lishui University, Lishui 323000, Zhejiang, China ...

  20. Effect of metabolic enzyme on organic acids in developing ...

    African Journals Online (AJOL)

    Effect of metabolic enzyme on organic acids in developing 'Dangshansuli' pear leaf. S Sha, J Li, J Wu, S Zhang. Abstract. Changes in the content of citric and malic acids and the activities of enzymes involved in the metabolism of these two organic acids, including citrate synthase (CS), cytoplast aconitase (Cyt-ACO), ...

  1. Sustainable nitrification in fluidised bed reactor with immobilised ...

    African Journals Online (AJOL)

    Sustainable nitrification in fluidised bed reactor with immobilised sludge pellets. Y Wang, W Zhou, Z Li, W Wu, Z Zhang. Abstract. Sustainable immobilised microbial pellets were developed with water-borne polyurethane (WPU) material together with powdered activated carbon (PAC) and activated sludge as microbial ...

  2. Effects of changes in vegetation on precipitation in the northern ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 125; Issue 3. Effects of changes in vegetation on precipitation in the northern Tianshan Mountains evaluated using multiple time scales. Qinming Qinming Sun Tong Liu Zhiquan Han Yongping Wu Bai-Lian Li. Volume 125 Issue 3 April 2016 pp 507-519 ...

  3. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Genetic diversity of bitter taste receptor gene family in Sichuan domestic and Tibetan chicken populations · YUAN SU DIYAN LI UMA GAUR YAN WANG NAN WU BINLONG CHEN HONGXIAN XU HUADONG YIN YAODONG HU QING ZHU · More Details Abstract Fulltext PDF. The sense of bitter taste plays a critical role in ...

  4. Regenerated thermosetting styrene-co-acrylonitrile sandwich ...

    Indian Academy of Sciences (India)

    ... 2 Qin Peng1 2 Anrong Zeng1 2 Junlin Li1 2 Xiaole Wu1 2 Xiaofei Liu1 2. Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering, Tianjin University, Weijin Road 92, Nankai District, Tianjin 300072, PR China; Tianjin Key Laboratory of Composite and Functional Materials, ...

  5. TaqMan Real-Time Polymerase Chain Reaction and ...

    African Journals Online (AJOL)

    TaqMan Real-Time Polymerase Chain Reaction and. Pyrosequencing using Single Nucleotide Polymorphism. Protocol for Rapid Determination of ALDH2 *2 in a Chinese. Population. Ju-yi Li1, Jin-hu Wu2, Yan Zhang2, Xiu-fang Wang2, Jie Jin2 and Yi Wang1*. 1Department of Pharmacy, The Central Hospital of Wuhan, ...

  6. Designing Robust and Resilient Tactical MANETs

    Science.gov (United States)

    2014-09-25

    Multipath Wireless Network, IEEE ISIT 2012. 01-JUL-12, . : , Tzong-Chen Wu, Chia-Hsin Owen Chen, Chung-Wei Chen, Cynthia Kuo, Yan-Hao Lai, Jonathan...Communications. 01-MAY-08, . : , Qing Li , Meiyuan Zhao , Jesse Walker, Yih-Chun Hu, Adrian Perrig, Wade Trappe. SEAR: A Secure Efficient Ad Hoc On Demand Routing

  7. Validation of the Electromagnetic Code FACETS for Numerical Simulation of Radar Target Images

    Science.gov (United States)

    2009-12-01

    comme des aéronefs, des navires et des véhicules terrestres , dont le niveau de précision est constant. On peut en outre utiliser des images SAR...targets.php [5] R. Wu, J. Li, Z. Bi and P. Stoica, “SAR Image Formation via Semiparametric Spectral Estimation”, IEEE Transactions on Aerospace and

  8. Proximal migration of a 5 French pancreatic stent during bile stone ...

    African Journals Online (AJOL)

    Date of Acceptance: 16‑Jun‑2013. Address for correspondence: Prof. Jie Wu,. Department of Gastroenterology, Central Hospital, 26 Sheng Li. Street .... duodenoscope, when we extracted the big bile stone. As a foreign object keeping in the body, the migrated stent could result in complications including infection, stone.

  9. African Journal of Biotechnology - Vol 10, No 63 (2011)

    African Journals Online (AJOL)

    Characterization of a tailless white spot syndrome virus from diseased Penaeus vannamei and Procambarus clarkii in China · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. T Liang, T Wu, J Du, H Ji, Y Li, W Gu, W Wang, 13936-13942 ...

  10. Zhan Shi

    Indian Academy of Sciences (India)

    ZHAN SHI. Articles written in Journal of Biosciences. Volume 41 Issue 2 June 2016 pp 229-236 Article. Silencing of HMGA2 promotes apoptosis and inhibits migration and invasion of prostate cancer cells · Zhan Shi Ding Wu Run Tang Xiang Li Renfu Chen Song Xue Chengjing Zhang Xiaoqing Sun · More Details Abstract ...

  11. LcMKK, a MAPK kinase from Lycium chinense, confers cadmium ...

    Indian Academy of Sciences (India)

    CHUNFENG GUAN

    Plant. Cell Rep. 34, 871–884. Guan C., Ji J., Wu D., Li X., Jin C., Guan W. et al. 2015b The glutathione synthesis may be regulated by cadmium-induced endogenous ethylene in Lycium chinense, and overexpression of an ethylene responsive transcription factor gene enhances tolerance to cadmium stress in tobacco. Mol.

  12. A CATALYTIC METHOD FOR THE SYNTHESIS OF 4-ALKYL(ARYL ...

    African Journals Online (AJOL)

    Preferred Customer

    Kashef, H. II Farmaco. 1999, 54, 195. 8. Gordeev, M.F.; Patel, D.V.; Wu, J.; Gordon, E.M. Tetrahedron Lett. 1996, 37, 4643. 9. Bhandari, A.; Li, B.; Gallop, M.A. Synthesis 1999, 11, 1951. 10. Breitenbucher, J.G.; Figliozzi, G. Tetrahedron Lett. 2000 ...

  13. Antioxidant capacity of extracts from calyx fruits of roselle ( Hibiscus ...

    African Journals Online (AJOL)

    Antioxidant capacity of extracts from calyx fruits of roselle ( Hibiscus sabdariffa L.) ... L Yang, Y Gou, T Zhao, J Zhao, F Li, B Zhang, X Wu. Abstract. The antioxidant capacities of extracts of dried roselle (Hibiscus sabdariffa L.) calyx and fruit with distilled water ethanol (30, 60 and 95%) were determined by 2 ...

  14. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. SONG XUE. Articles written in Journal of Biosciences. Volume 41 Issue 2 June 2016 pp 229-236 Article. Silencing of HMGA2 promotes apoptosis and inhibits migration and invasion of prostate cancer cells · Zhan Shi Ding Wu Run Tang Xiang Li Renfu Chen Song Xue Chengjing ...

  15. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    A novel missense mutation of ADAR1italic> gene in a Chinese family leading to dyschromatosis symmetrica hereditaria and literature review. SHUAI-MEI LIU MENG-XIA NI MING-CHAO ZHANG PEI-RAN ZHU QIU-YU WU WEI-JUN JIANG JING ZHANG WEI-WEI LI XIN-YI XIA. Research article Volume 96 Issue 6 December ...

  16. Barriers to Utilization of Cataract Surgical Services in Ekiti State ...

    African Journals Online (AJOL)

    2016-11-09

    Nov 9, 2016 ... in rural China through focus group. Ophthal Epidemiol. 2011;18:179-86. 12. Zhijian LI, Zhen S, Shubin WU, Keke XU, DI Jin,. Haijingwang Ping LU. Outcomes and Barriers to uptake of cataract surgery in rural Northern China: The Heilongjiang Eye. Study. Ophthal Epidemiol 2014;21:161-8. 13. Marmamula ...

  17. Data release of the LAMOST pilot survey

    National Research Council Canada - National Science Library

    A-Li Luo Hao-Tong Zhang Yong-Heng Zhao Gang Zhao Xiang-Qun Cui Guo-Ping Li Yao-Quan Chu Jian-Rong Shi Gang Wang Jian-Nan Zhang Zhong-Rui Bai Xiao-Yan Chen Feng-Fei Wang Yan-Xin Guo Jian-Jun Chen Bing Du Xiao Kong Ya-Juan Lei Yin-Bi Li Yi-Han Song Yue Wu Yan-Xia Zhang Xin-Lin Zhou Fang Zuo Peng Du Lin He Wen Hou Yi-Qiao Dong Jian Li Guang-Wei Li Shuang Li Jing Song Yuan Tian Meng-Xin Wang Yong-Hui Hou Zhi-Ying Huo Hong-Zhuan Hu Ning-Sheng Hu Zhong-Wen Hu Lei Jia Fang-Hua Jiang Xiang Jiang Zi-Bo Jiang Ge Jin Ai-Hua Li Qi Li Yin-Dun Mao Zheng-Hong Tang Qing-Sheng Tao Liang-Ping Tu Da-Qing Wang Dan Wang Jian-Ping Wang Lei Wang Shou-Guan Wang Shu-Qing Wang Ya-Nan Wang You Wang Yue-Fei Wang Ming-Zhi Wei Xiang-Xiang Xue Xiao-Zheng Xing Ling-Zhe Xu Xin-Qi Xu Yan Xu De-Hua Yang Shi-Hai Yang Zheng-Qiu Yao Yong Yu Hui Yuan Chao Zhai En-Peng Zhang Jing Zhang Li-Ping Zhang WeiZhang Yong Zhang Zhen-Chao Zhang Ming Zhao Fang Zhou Yong-Tian Zhu Jie Zhu Si-Cheng Zou

    2012-01-01

    ...—Nan Zhang ,Zhong—Rui Bai ,Xiao—Yan Chen ,Feng—Fei W ang ,Yan—Xin Guo ,Jian—Jun Chen ,Bing Du1,Xiao KongI,Ya—Juan Lei1,Yin—Bi Li1,Yi—Han Song ,Yue Wu ,Yan—Xia...

  18. Prompt Global Strike: China and the Spear

    Science.gov (United States)

    2014-04-01

    Aeronautica et Astronautica Sinica), Issue 5, September 2008, pp. 1091-1097. 83 Cai Lin, Wu Qian, and Lei Li are affiliated with the Southwest China...Hangkong xuebao (Acta Aeronautica et Astronautica Sinica), Issue 5, September 2008; Chen Xiaoqing, Hou Zhongxi, and Liu Jianxia, “Gao chaoshengsu

  19. Chemically Tunable 2D Materials

    Science.gov (United States)

    2016-06-30

    2015, 44, 5861- 5896. 18 J. Zhao, Z. Wang, J. C. White and B. Xing , Environ. Sci. Techno/., 2014, 48, 9995-10009. 19 V. C. Sanchez, A. jachak, R. H...143. 117 T. Tong, A. Shereef, J. Wu , C. T. T. Binh, J. J. Kelly, J.-F. Gaillard and K. A. Gray, Environ. Sci. Technol., 2013, 47, 12486- 12495. 118...S. Liu, M. Hu, T. H. Zeng, R. Wu , R. Jiang,]. Wei, L. Wang, J. Kong andY. Chen, Langmuir, 2012, 28, 12364- 12372. 119 ]. Fan, Y. Li, H. N. Nguyen, Y

  20. Guang-Rong Li

    Indian Academy of Sciences (India)

    Guang-Rong Li. Articles written in Journal of Genetics. Volume 91 Issue 3 December 2012 pp 343-348 Research Note. Chromosomal distribution of a new centromeric Ty3-gypsy retrotransposon sequence in Dasypyrum and related Triticeae species · Guang-Rong Li Cheng Liu Pei Wei Xiao-Jin Song Zu-Jun Yang.

  1. Categorizing renal oncocytic neoplasms on core needle biopsy: a morphologic and immunophenotypic study of 144 cases with clinical follow-up. Alderman MA, Daignault S, Wolf JS Jr, Palapattu GS, Weizer AZ, Hafez KS, Kunju LP, Wu AJ. Hum Pathol.September 2016;55:1-10.

    Science.gov (United States)

    Kryvenko, Oleksandr N

    2017-06-01

    There is limited literature on renal oncocytic neoplasms diagnosed on core biopsy. All renal oncocytic neoplasm core biopsies from 2006 to 2013 were, retrospectively, reviewed. Morphologic features and an immunohistochemical panel of CK7, c-KIT, and S100A1 were assessed. Concordance with resection diagnosis, statistical analysis including a random forest classification, and follow-up were recorded. The postimmunohistochemical diagnoses of 144 renal oncocytic core biopsies were favor oncocytoma (67%), favor renal cell carcinoma (RCC) (12%), and cannot exclude RCC (21%). Diagnosis was revised following immunohistochemistry in 7% of cases. The most common features for oncocytoma (excluding dense granular cytoplasm) were nested architecture, edematous stroma, binucleation and tubular architecture; the most common features for favor RCC were sheet-like architecture, nuclear pleomorphism, papillary architecture, and prominent cell borders. High nuclear grade, necrosis, extensive papillary architecture, raisinoid nuclei, and frequent mitoses were not seen in oncocytomas. Comparing the pathologist and random forest classification, the overall out-of-bag estimate of classification error dropped from 23% to 13% when favor RCC and cannot exclude RCC was combined into 1 category. Resection was performed in 19% (28 cases) with a 94% concordance (100% of favor RCC biopsies and 90% of cannot exclude RCC biopsies confirmed as RCC; 83% of favor oncocytomas confirmed); ablation in 23%; and surveillance in 46%. Follow-up was available in 92% (median follow-up, 33 months) with no adverse outcomes. Renal oncocytic neoplasms comprise a significant subset (16%) of all core biopsies, and the majority (78%) can be classified as favor oncocytoma or favor RCC. Copyright © 2017 Elsevier Inc. All rights reserved.

  2. 實徵研究/你用青春碰撞什麼?大學生閱讀行為的調查分析/黃焜煌;吳榮彬;張簡誌誠 | A Survey of the College Students' Reading Behavior in Taiwan/Kun-Huang Huarng;Jungpin Wu;Chih-Cheng Changchien

    Directory of Open Access Journals (Sweden)

    黃焜煌、吳榮彬、張簡誌誠 Kun-Huang Huarng; Jungpin Wu; Chih-Cheng Changchien

    2009-04-01

    Full Text Available 鑑於「閱讀」是學習者藉以獲取資訊來源、判讀知識內容、吸收經驗智慧的主要途徑,閱讀動機、能力以及風氣的強弱對於學習成效的影響甚巨,因此,希望透過較大規模的調查,以觀察現階段大學生閱讀行為的整體樣貌與發展趨勢。本文以自編問卷作為調查工具,大學在校學生為調查對象,在2008年2月18日至3月3日期間,選擇北、中、南10所大學院校,以無名冊的系統抽樣方式施測,總計發出1500份問卷,有效問卷1,077份,並利用SPSS統計軟體進行分析。本文以外在環境影響、內在個人因素以及行為產出結果等三個構面為主,同時針對圖書館、校園書店等閱讀補助機構進行分析與觀察,並據以描繪大學生閱讀行為的輪廓與問題,進而提供改善閱讀風氣的策略方案。The main purpose of this research is to explore the reading behavior of college students in Taiwan. The authors employed survey research method, and adopted a self-editing questionnaire, and used the systematic sampling to conduct the whole sampling survey. During February 18, 2008 to March 3, 2008, there were 1500 samples in total were surveyed. The number of the valid samples was 1077. Three factors consisted of the environmental factors, the individual factors, the outcome performance were used for data analysis. SPSS statistical software package was employed. This survey reported the college students’ reading behavior in Taiwan. Based on the research findings, the suggestions for reading improvement were proposed.頁次:37-54

  3. Commentary on "tissue-specific mutagenesis by N-butyl-N-(4-hydroxybutyl) nitrosamine as the basis for urothelial cell carcinogenesis." He Z, Kosinska W, Zhao ZL, Wu XR, Guttenplan JB, Department of Basic Science, New York University Dental College, NY, USA.: Mutat Res 2012;742(1-2):92-5 [Epub 2011 Dec 4].

    Science.gov (United States)

    Scherr, Douglas S

    2014-02-01

    Bladder cancer is one of the few cancers that have been linked to carcinogens in the environment and tobacco smoke. Of the carcinogens tested in mouse chemical carcinogenesis models, N-butyl-N-(4-hydroxybutyl)nitrosamine (BBN) is one that reproducibly causes high-grade, invasive cancers in the urinary bladder, but not in any other tissues. However, the basis for such a high-level tissue-specificity has not been explored. Using mutagenesis in lacI (Big Blue™) mice, we show here that BBN is a potent mutagen and it causes high-level of mutagenesis specifically in the epithelial cells (urothelial) of the urinary bladder. After a 2-6-week treatment of 0.05% BBN in the drinking water, mutagenesis in urothelial cells of male and female mice was about two orders of magnitude greater than the spontaneous mutation background. In contrast, mutagenesis in smooth muscle cells of the urinary bladder was about five times lower than in urothelial tissue. No appreciable increase in mutagenesis was observed in kidney, ureter, liver or forestomach. In lacI (Big Blue™) rats, BBN mutagenesis was also elevated in urothelial cells, albeit not nearly as profoundly as in mice. This provides a potential explanation as to why rats are less prone than mice to the formation of aggressive form of bladder cancer induced by BBN. Our results suggest that the propensity to BBN-triggered mutagenesis of urothelial cells underlies its heightened susceptibility to this carcinogen and that mutagenesis induced by BBN represents a novel model for initiation of bladder carcinogenesis. Copyright © 2014 Elsevier Inc. All rights reserved.

  4. 天津圖書館專輯/網上資源自由存取與圖書館服務/吳慰慈;谷秀潔 | Free Access to the Internet Resources and the Library Service Response/ Wei-Ci Wu;Xiu-Jie Gu

    Directory of Open Access Journals (Sweden)

    吳慰慈、谷秀潔

    2007-04-01

    Full Text Available

    網上資源自由存取有廣義和狹義兩種理解,它既是一種理性的權利也是一種理性的活動。儘管技術、民主、利益和全球化四條主線並不能完全概括網上資訊自 由存取所面臨的困難或成因,但是筆者將之作為一種分析問題的視角提出來供大家探討。最後,結台國內外實際情況對我國圖書館服務回應提出一些建議。

    There are two ways to understand the meaning of free access to the Internet resources: broad sense and narrow sense. The free access not only means a sort of rational rights but also a kind of rational activity. Although technology, democracy, benefit and globalization would not cover all reasons which restrict the free access to Internet resources, the authors just try to use them as analysis perspectives. Finally, according to the fact, they suggest some library service response stratagems.

    頁次:67-75

  5. Li diffusion in zircon

    Science.gov (United States)

    Cherniak, D. J.; Watson, E. B.

    2010-09-01

    Diffusion of Li under anhydrous conditions at 1 atm and under fluid-present elevated pressure (1.0-1.2 GPa) conditions has been measured in natural zircon. The source of diffusant for 1-atm experiments was ground natural spodumene, which was sealed under vacuum in silica glass capsules with polished slabs of zircon. An experiment using a Dy-bearing source was also conducted to evaluate possible rate-limiting effects on Li diffusion of slow-diffusing REE+3 that might provide charge balance. Diffusion experiments performed in the presence of H2O-CO2 fluid were run in a piston-cylinder apparatus, using a source consisting of a powdered mixture of spodumene, quartz and zircon with oxalic acid added to produce H2O-CO2 fluid. Nuclear reaction analysis (NRA) with the resonant nuclear reaction 7Li(p,γ)8Be was used to measure diffusion profiles for the experiments. The following Arrhenius parameters were obtained for Li diffusion normal to the c-axis over the temperature range 703-1.151°C at 1 atm for experiments run with the spodumene source: D_{text{Li}} = 7.17 × 10^{ - 7} { exp }( - 275 ± 11 {text{kJmol}}^{ - 1} /{text{RT}}){text{m}}2 {text{s}}^{ - 1}. Diffusivities are similar for transport parallel to the c-axis, indicating little anisotropy for Li diffusion in zircon. Similar Li diffusivities were also found for experiments run under fluid-present conditions and for the experiment run with the Dy-bearing source. Li diffusion is considerably faster than diffusion of other cations in zircon, with a smaller activation energy for diffusion. Although Li diffusion in zircon is comparatively rapid, zircons will be moderately retentive of Li signatures at mid-crustal metamorphic temperatures, but they are unlikely to retain this information for geologically significant times under high-grade metamorphism.

  6. Scattering of a spherical pulse from a small inhomogeneity ...

    Indian Academy of Sciences (India)

    R. Narasimhan (Krishtel eMaging Solutions)

    Lysmer and Drake 1972), the Born approximation (Wu and Aki 1985a), the complex screen approach. (Wu 1994), Kirchoff-Helmhotz integration (Neu- berg and Pointer 1995), the boundary integral equation method (Benites, Aki and Yamogida.

  7. Can Medical Herbs Stimulate Regeneration or Neuroprotection and Treat Neuropathic Pain in Chemotherapy-Induced Peripheral Neuropathy?

    National Research Council Canada - National Science Library

    Schröder, Sven; Beckmann, Kathrin; Franconi, Giovanna; Meyer-Hamme, Gesa; Friedemann, Thomas; Greten, Henry Johannes; Rostock, Matthias; Efferth, Thomas

    2013-01-01

    ..., Chamomilla matricaria, Ginkgo biloba, Salvia officinalis, Sweet bee venom, Fritillaria cirrhosae bulbus, and the herbal combinations Bu Yang Huan Wu, modified Bu Yang Huan Wu plus Liuwei Di Huang...

  8. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Gen Hua Wu. Articles written in Journal of Chemical Sciences. Volume 121 Issue 4 July 2009 pp 543-548. Highly sensitive optical chemosensor for the detection of Cu using a rhodamine B spirolatam · Gen Hua Wu Dong Xiang Wang Da Yu Wu Yuan Gao Zhu Qing Wang.

  9. Biisofraxidin on Apoptosis of Human Gastric Cancer BGC-823 Cells

    African Journals Online (AJOL)

    Power DG, Kelsen DP, Shah MA. Advanced gastric cancer show but steady progress. Cancer Treat Rev. 2010; 36: 384-392. 12. Yang L. Incidence and mortality of gastric cancer in. China. World J Gastroenterol 2006; 12: 17-20. 13. Leung WK, Wu MS, Kakugawa Y, Kim JJ, Yeoh KG, Goh. KL, Wu KC, Wu DC, Sollano J, ...

  10. LiDy(PO34

    Directory of Open Access Journals (Sweden)

    Fathia Chehimi-Moumen

    2008-07-01

    Full Text Available Single crystals of lithium dysprosium polyphosphate, LiDy(PO34, were prepared by the flux method. The atomic arrangement is built up by infinite (PO3n chains extending along the b axis. Dy3+ and Li+ cations alternate in the middle of four such chains, with Dy...Li distances of 3.54 (1 and 3.48 (1 Å. The DyO8 dodecahedra and LiO4 tetrahedra deviate significantly from the ideal geometry. Both Dy and Li occupy special positions (Wyckoff position 4e, site symmetry 2.

  11. Can Medical Herbs Stimulate Regeneration or Neuroprotection and Treat Neuropathic Pain in Chemotherapy-Induced Peripheral Neuropathy?

    Science.gov (United States)

    Schröder, Sven; Beckmann, Kathrin; Franconi, Giovanna; Greten, Henry Johannes; Rostock, Matthias; Efferth, Thomas

    2013-01-01

    Chemotherapy-induced neuropathy (CIPN) has a relevant impact on the quality of life of cancer patients. There are no curative conventional treatments, so further options have to be investigated. We conducted a systematic review in English and Chinese language databases to illuminate the role of medical herbs. 26 relevant studies on 5 single herbs, one extract, one receptor-agonist, and 8 combinations of herbs were identified focusing on the single herbs Acorus calamus rhizoma, Cannabis sativa fructus, Chamomilla matricaria, Ginkgo biloba, Salvia officinalis, Sweet bee venom, Fritillaria cirrhosae bulbus, and the herbal combinations Bu Yang Huan Wu, modified Bu Yang Huan Wu plus Liuwei Di Huang, modified Chai Hu Long Gu Mu Li Wan, Geranii herba plus Aconiti lateralis praeparata radix , Niu Che Sen Qi Wan (Goshajinkigan), Gui Zhi Jia Shu Fu Tang (Keishikajutsubuto), Huang Qi Wu Wu Tang (Ogikeishigomotsuto), and Shao Yao Gan Cao Tang (Shakuyakukanzoto). The knowledge of mechanism of action is still limited, the quality of clinical trials needs further improvement, and studies have not yielded enough evidence to establish a standard practice, but a lot of promising substances have been identified. While CIPN has multiple mechanisms of neuronal degeneration, a combination of herbs or substances might deal with multiple targets for the aim of neuroprotection or neuroregeneration in CIPN. PMID:23983777

  12. Can Medical Herbs Stimulate Regeneration or Neuroprotection and Treat Neuropathic Pain in Chemotherapy-Induced Peripheral Neuropathy?

    Directory of Open Access Journals (Sweden)

    Sven Schröder

    2013-01-01

    Full Text Available Chemotherapy-induced neuropathy (CIPN has a relevant impact on the quality of life of cancer patients. There are no curative conventional treatments, so further options have to be investigated. We conducted a systematic review in English and Chinese language databases to illuminate the role of medical herbs. 26 relevant studies on 5 single herbs, one extract, one receptor-agonist, and 8 combinations of herbs were identified focusing on the single herbs Acorus calamus rhizoma, Cannabis sativa fructus, Chamomilla matricaria, Ginkgo biloba, Salvia officinalis, Sweet bee venom, Fritillaria cirrhosae bulbus, and the herbal combinations Bu Yang Huan Wu, modified Bu Yang Huan Wu plus Liuwei Di Huang, modified Chai Hu Long Gu Mu Li Wan, Geranii herba plus Aconiti lateralis praeparata radix , Niu Che Sen Qi Wan (Goshajinkigan, Gui Zhi Jia Shu Fu Tang (Keishikajutsubuto, Huang Qi Wu Wu Tang (Ogikeishigomotsuto, and Shao Yao Gan Cao Tang (Shakuyakukanzoto. The knowledge of mechanism of action is still limited, the quality of clinical trials needs further improvement, and studies have not yielded enough evidence to establish a standard practice, but a lot of promising substances have been identified. While CIPN has multiple mechanisms of neuronal degeneration, a combination of herbs or substances might deal with multiple targets for the aim of neuroprotection or neuroregeneration in CIPN.

  13. Can medical herbs stimulate regeneration or neuroprotection and treat neuropathic pain in chemotherapy-induced peripheral neuropathy?

    Science.gov (United States)

    Schröder, Sven; Beckmann, Kathrin; Franconi, Giovanna; Meyer-Hamme, Gesa; Friedemann, Thomas; Greten, Henry Johannes; Rostock, Matthias; Efferth, Thomas

    2013-01-01

    Chemotherapy-induced neuropathy (CIPN) has a relevant impact on the quality of life of cancer patients. There are no curative conventional treatments, so further options have to be investigated. We conducted a systematic review in English and Chinese language databases to illuminate the role of medical herbs. 26 relevant studies on 5 single herbs, one extract, one receptor-agonist, and 8 combinations of herbs were identified focusing on the single herbs Acorus calamus rhizoma, Cannabis sativa fructus, Chamomilla matricaria, Ginkgo biloba, Salvia officinalis, Sweet bee venom, Fritillaria cirrhosae bulbus, and the herbal combinations Bu Yang Huan Wu, modified Bu Yang Huan Wu plus Liuwei Di Huang, modified Chai Hu Long Gu Mu Li Wan, Geranii herba plus Aconiti lateralis praeparata radix , Niu Che Sen Qi Wan (Goshajinkigan), Gui Zhi Jia Shu Fu Tang (Keishikajutsubuto), Huang Qi Wu Wu Tang (Ogikeishigomotsuto), and Shao Yao Gan Cao Tang (Shakuyakukanzoto). The knowledge of mechanism of action is still limited, the quality of clinical trials needs further improvement, and studies have not yielded enough evidence to establish a standard practice, but a lot of promising substances have been identified. While CIPN has multiple mechanisms of neuronal degeneration, a combination of herbs or substances might deal with multiple targets for the aim of neuroprotection or neuroregeneration in CIPN.

  14. Less is more: standard warm-up causes fatigue and less warm-up permits greater cycling power output.

    Science.gov (United States)

    Tomaras, Elias K; MacIntosh, Brian R

    2011-07-01

    The traditional warm-up (WU) used by athletes to prepare for a sprint track cycling event involves a general WU followed by a series of brief sprints lasting ≥ 50 min in total. A WU of this duration and intensity could cause significant fatigue and impair subsequent performance. The purpose of this research was to compare a traditional WU with an experimental WU and examine the consequences of traditional and experimental WU on the 30-s Wingate test and electrically elicited twitch contractions. The traditional WU began with 20 min of cycling with a gradual intensity increase from 60% to 95% of maximal heart rate; then four sprints were performed at 8-min intervals. The experimental WU was shorter with less high-intensity exercise: intensity increased from 60% to 70% of maximal heart rate over 15 min; then just one sprint was performed. The Wingate test was conducted with a 1-min lead-in at 80% of optimal cadence followed by a Wingate test at optimal cadence. Peak active twitch torque was significantly lower after the traditional than experimental WU (86.5 ± 3.3% vs. 94.6 ± 2.4%, P track cyclist's WU results in significant fatigue, which corresponds with impaired peak power output. A shorter and lower-intensity WU permits a better performance.

  15. More evidence for trends in the intergenerational transmission of divorce: a completed cohort approach using data from the general social survey.

    Science.gov (United States)

    Wolfinger, Nicholas H

    2011-05-01

    Many studies have demonstrated that the children of divorce are disproportionately likely to end their own marriages. In previous work, I showed that the transmission of divorce between generations weakened substantially for General Social Survey (GSS) respondents interviewed between 1973 and 1996 (Wolfinger 1999); Li and Wu (2006, 2008) contended that my finding is a methodological artifact of the GSS's lack of marriage duration data. This article presents a completed-cohort approach to studying divorce using the GSS. The results confirm a decline in the probability of divorce transmission that cannot be explained by the right-censoring bias alleged by Li and Wu. This finding contributes to an ongoing debate about trends in the negative consequences of parental divorce, as well as demonstrating a useful approach to right-censored phenomena when event history data are not available.

  16. Electronic Properties of LiFePO4 and Li doped LiFePO4

    Energy Technology Data Exchange (ETDEWEB)

    Zhuang, G.V.; Allen, J.L.; Ross, P.N.; Guo, J.-H.; Jow, T.R.

    2005-06-28

    The potential use of different iron phosphates as cathodematerials in lithium-ion batteries has recently been investigated.1 Oneof the promising candidates is LiFePO4. This compound has severaladvantages in comparison to the state-of-the-art cathode material incommercial rechargeable lithium batteries. Firstly, it has a hightheoretical capacity (170 mAh/g). Secondly, it occurs as mineraltriphylite in nature and is inexpensive, thermally stable, non-toxic andnon-hygroscopic. However, its low electronic conductivity (~;10-9 S/cm)results in low power capability. There has been intense worldwideresearch activity to find methods to increase the electronic conductivityof LiFePO4, including supervalent ion doping,2 introducingnon-carbonaceous network conduction3 and carbon coating, and theoptimization of the carbon coating on LiFePO4 particle surfaces.4Recently, the Li doped LiFePO4 (Li1+xFe1-xPO4) synthesized at ARL hasyield electronic conductivity increase up to 106.5 We studied electronicstructure of LiFePO4 and Li doped LiFePO4 by synchrotron based soft X-rayemission (XES) and X-ray absorption (XAS) spectroscopies. XAS probes theunoccupied partial density of states, while XES the occupied partialdensity of states. By combining XAS and XES measurements, we obtainedinformation on band gap and orbital character of both LiFePO4 and Lidoped LiFePO4. The occupied and unoccupied oxygen partial density ofstates (DOS) of LiFePO4 and 5 percent Li doped LiFePO4 are presented inFig. 1. Our experimental results clearly indicate that LiFePO4 has wideband gap (~; 4 eV). This value is much larger than what is predicted byDFT calculation. For 5 percent Li doped LiFePO4, a new doping state wascreated closer to the Fermi level, imparting p-type conductivity,consistent with thermopower measurement. Such observation substantiatesthe suggestion that high electronic conductivity in Li1.05Fe0.95 PO4 isdue to available number of charge carriers in the material. Furthermore,Hall effect

  17. Browse Title Index - African Journals Online

    African Journals Online (AJOL)

    L Zhong, Y Wang, W Peng, Y Liu, J Wan, S Yang, L Li, C Wu, X Zhou. Vol 16, No 5 (2017), Healing effect of Sanguisorba officinalis L extract on second-degree burns in rats, Abstract PDF. Xin Le, You-fen Fan. Vol 15, No 4 (2016), Healing effect of Terminalia chebula Retz extract on second-degree burns in rats, Abstract PDF.

  18. report of Zulu dictionary: Isichazamazwi SesiZulu

    African Journals Online (AJOL)

    R.B. Ruthven

    úkúgíya 'dance', ísíwula 'fool'; and the symbol ˆ to mark a combination of high and low tones, e.g. úbulâwu 'love potion', í(li)hlûle 'clot'. Words which contain the syllabic nasal m, are identified by the inclusion of the elided vowel u written in brackets, e.g. úm(ú)lotha 'ash', úm(ú)fula 'river'. If words have different pronunciations ...

  19. Histo-morphologische Untersuchungen nach xenogener Transplantation mikroverkapselter Langerhans-Inseln im Modell "Schwein-auf-Ratte"

    OpenAIRE

    Chodnevskaja, Irina

    2006-01-01

    Histo-morphological analyses after xenogeneic Transplantation mikroencap-sulated Islets of Langerhans in the Model „Pig-in-Rat“ Summary The aim of this study was the detailed histological and immunohistochemical analyzation of microencapsulated xenogeneic islet grafts in previously streptozotozin (STZ)-diabetic Wistar WU rats. Microencapsulated porcine islets of Langerhans (mpLI) were transplanted intraperitoneal and under the left renal capsule of these rats without any medical immun...

  20. Facile synthesis of new thermally stable and organosoluble ...

    Indian Academy of Sciences (India)

    Sponton M, Mercado L A, Ronda J C, Galia M and. Cadiz V 2008 Polym. Degrad. Stabil. 93 2025. 32. Zhang W, Li X, Jiang Y and Yang R 2013 Polym. Degrad. Stabil. 98 246. 33. Ren H, Sun J, Wu B and Zhou Q 2007 Polym. Degrad. Stabil. 92 956. 34. Liu Y L, Hsiue G H, Lee R H and Chiu Y S 1997 J. Appl. Polym. Sci.

  1. An efficient one-pot synthesis of novel pyrazolophthalazinyl ...

    Indian Academy of Sciences (India)

    Administrator

    thesis 19 3238; (d) Wang Y, Shang Z-C, Wu T-X,. Fan J-C and Chen X 2006 J. Mol. Catal. A: Chem. 253 212; (e) Shen Z, Li B, Wang L and Zhang Y. 2005 Tetrahedron Lett. 46 8785. 12. (a) Shanthi G, Subbulakshmi G and Perumal P T. 2007 Tetrahedron 63 2057; (b) Shanthi G and Peru- mal P T 2007 Tetrahedron Lett.

  2. Consumer evaluation of imported organic food products in emerging economies in Asia

    OpenAIRE

    Pedersen, Susanne; Aschemann-Witzel, Jessica; Thøgersen, John

    2017-01-01

    Consumer evaluation of imported organic food products in emerging economies in Asia Introduction Consumers in emerging economies such as Thailand and China have started to demand organic food products – mainly due to food safety reasons (Ortega, Wang, Wu, & Hong, 2015; Roitner-Schobesberger, Darnhofer, Somsook, & Vogl, 2008; C. L. Wang, Li, Barnes, & Ahn, 2012; O. Wang, De Steur, Gellynck, & Verbeke, 2015). However, since the domestic organic markets are still not well-establi...

  3. Damping properties of epoxy-based composite embedded with sol ...

    Indian Academy of Sciences (India)

    Sci.: Mater. Electron. 23 940. Kholkin A L, Akdogan E K, Safari A, Chauvy P F and Setter N. 2001 J. Appl. Phys. 89 8066. Li Y, Marcassa F, Horowitz R, Oboe R and Evans R 2006 J. Dyn. Syst. –T ASME 128 568. Lin Q and Ermanni P 2004 Int. J. Solids Struct. 41 1741. Liu Z, Wang Y, Huang G and Wu J 2008 J. Appl. Polym.

  4. Species of the genus Euseius Wainstein (Acari: Phytoseiidae: Amblyseiinae) from Taiwan.

    Science.gov (United States)

    Liao, Jhih-Rong; Ho, Chyi-Chen; Ko, Chiun-Cheng

    2017-01-26

    The six mite species of the genus Euseius Wainstein from Taiwan are reviewed, including E. ovalis (Evans), E. daluensis sp. nov., E. macaranga sp. nov., E. paraovalis sp. nov., and two species recorded for the first time in Taiwan, E. aizawai (Ehara & Bhandhufalck) and E. circellatus (Wu & Li). Measurements of these species and an identification key for adult females of the six Euseius species from Taiwan are provided.

  5. Annealing twins in a multifunctional beta Ti–Nb–Ta–Zr–O alloy

    Indian Academy of Sciences (India)

    Administrator

    Cahn R W and Haasen P 1996 Physical metallurgy (Amsterdam: North Holland) 4th edn. Furuta T, Kuramoto S, Hwang J, Nishino K and Saito T 2005. Mater. Trans., JIM 46 3001. Guo W Y, Xing H, Sun J, Li X L, Wu J S and Chen R 2008. Metall. Mater. Trans. A39 672. Gutkin M Y, Ishizaki T, Kuramoto S and Ovid'ko I A 2006.

  6. Browse Title Index - African Journals Online

    African Journals Online (AJOL)

    Q Xu, Y Liu, Y-B Cong, Y-Y Zheng, J-P Zhang, Y Cui, H Shi. Vol 15, No 11 (2016), Generation of truncated ... Shou-Liang Wang, Lian Duan, Wei Li, Gong-Ming Wang, Meng-Yuan Zhang. Vol 13, No 12 (2014), Genoprotective and ... Yanbing Wu, Zhenmin Yan, Junjun Zhao, Yinghui Zhu. Vol 14, No 5 (2015), Headspace ...

  7. Making physics popular

    Science.gov (United States)

    Crease, Robert P.

    2009-04-01

    I once interviewed the Northern Irish physicist John Bell, who told me a curious tale about the wife of the then-American ambassador to Switzerland. Bell recalled how she rolled up at his office at CERN bearing a dog-eared copy of The Dancing Wu Li Masters, a book by the author and "soulhealer" Gary Zukav, seeking answers to her questions about the connections between quantum physics and Eastern mysticism.

  8. The development and validation of the Satisfaction Questionnaire for Osteoporosis Prevention in Malaysia

    OpenAIRE

    Toh LS; Lai PSM; Wu DBC; Wong KT; Low BY; Tan ATB; Anderson C

    2014-01-01

    Li Shean Toh,1 Pauline Siew Mei Lai,2 David Bin-Chia Wu,3 Kok Thong Wong,1 Bee Yean Low,1 Alexander Tong Boon Tan,4 Claire Anderson5 1School of Pharmacy, University of Nottingham, Semenyih, Malaysia; 2Department of Primary Care Medicine, University of Malaya Primary Care Research Group, University of Malaya, Kuala Lumpur, Malaysia; 3School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia; 4Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia; 5Division of Soci...

  9. A comparison of synchronized intermittent mandatory ventilation and pressure-regulated volume control ventilation in elderly patients with acute exacerbations of COPD and respiratory failure

    OpenAIRE

    Chang SC; Shi JD; Fu CP; Wu X; Li SQ

    2016-01-01

    Suchi Chang,1 Jindong Shi,2 Cuiping Fu,1 Xu Wu,1 Shanqun Li1 1Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, 2Department of Respiratory Medicine, The Fifth People’s Hospital of Shanghai, Fudan University, Shanghai, People’s Republic of China Background: COPD is the third leading cause of death worldwide. Acute exacerbations of COPD may cause respiratory failure, requiring intensive care unit admission and mechanical ventilation. Inten...

  10. Nanoemulsions coated with alginate/chitosan as oral insulin delivery systems: preparation, characterization, and hypoglycemic effect in rats

    OpenAIRE

    Li X; Qi J; Xie Y; Zhang X; Hu S; Xu Y.; Lu Y; Wu W

    2012-01-01

    Xiaoyang Li, Jianping Qi, Yunchang Xie, Xi Zhang, Shunwen Hu, Ying Xu, Yi Lu, Wei WuKey Laboratory of Smart Drug Delivery of Ministry of Education and People's Liberation Army (PLA), School of Pharmacy, Fudan University, Shanghai, ChinaAbstract: This study aimed to prepare nanoemulsions coated with alginate/chitosan for oral insulin delivery. Uncoated nanoemulsions were prepared by homogenization of a water in oil in water (w/o/w) multiple emulsion that was composed of Labrafac&re...

  11. Fast Li ionic conduction in solid solutions of the system Li4GeO4-Li2ZnGeO4-Li3PO4

    NARCIS (Netherlands)

    Kamphorst, J.G.; Hellstrom, E.E.

    A wide range of solid solution formation in the Li4GeO4-Li2ZnGeO4-Li3PO4 system was observed to occur with a structure based on γII-Li3PO4. This includes the fast Li conductor lisicon (Li14Zn(GeO4)4). The ionic conductivities of solid solutions in this systems are reported. Much of the solid

  12. Enhanced Li-Ion Battery

    Directory of Open Access Journals (Sweden)

    Natasha Ross

    2015-01-01

    Full Text Available Au with Pd nanoparticles were synthesized and coated onto the spinel LiMn2O4 via a coprecipitation calcination method with the objective to improve the microstructure, conductivity, and electrochemical activities of pristine LiMn2O4. The novel LiPdAuxMn2-xO4 composite cathode had high phase purity, well crystallized particles, and more regular morphological structures with narrow size distributions. At enlarged cycling potential ranges the LiPdAuxMn2-xO4 sample delivered 90 mAh g−1 discharge capacity compared to LiMn2O4 (45 mAh g−1. It was concluded that even a small amount of the Pd and Au enhanced both the lithium diffusivity and electrochemical conductivity of the host sample due to the beneficial properties of their synergy.

  13. Electron-impact Ionization Of Li2 And Li+2

    Energy Technology Data Exchange (ETDEWEB)

    Colgan, James P [Los Alamos National Laboratory

    2008-01-01

    Electron-impact ionization cross sections for Li{sub 2} and Li{sup +}{sub 2} are calculated using a configuration-average distorted-wave method. Bound orbitals for the molecule and its ions are calculated using a single configuration self-consistent field method based on a linear combination of Slater-type orbitals. The bound orbitals are transformed onto a two-dimensional lattice ({tau}, {theta}), which is variable in the radial coordinate and constant in the angular coordinate, from which Hartree with local exchange potentials are constructed. The single particle Schrodinger equation is then solved for continuum distorted-waves with S-matrix boundary conditions. Total ionization cross sections for Li{sub 2} at an equilibrium internuclear separation of R = 5.0 and for Li{sup +}{sub 2} at an equilibrium internuclear separation of R = 5.9 are presented.

  14. Electric dipolarizability of 7Li

    Indian Academy of Sciences (India)

    For the 6Li isotope modelled as an α-d cluster, because the centre of charge coincides with the centre of mass, the dipole polarizability is zero. The polarizability may arise if 6Li is described as a cluster of 3H and 3He. However, the results in that case will depend on polarizabilities of 3H and 3He besides that of their ...

  15. The Treatment Effectiveness Assessment (TEA

    Directory of Open Access Journals (Sweden)

    Ling W

    2013-09-01

    Full Text Available Walter Ling,1 David Farabee,1 Dagmar Liepa,2 Li-Tzy Wu3 1Integrated Substance Abuse Programs, University of California, Los Angeles, CA, 2Valley Care Medical Center, Panorama City, CA, 3Department of Psychiatry and Behavioral Sciences, School of Medicine, Duke University Medical Center, Durham, NC, USA We have been surprised and gratified by the readers’ responses to our article, The Treatment Effectiveness Assessment (TEA: an efficient, patient-centered instrument for evaluating progress in recovery from addiction, which was published in December 2012.1 In the six months since that time, we have received numerous questions and observations about the article, and about the TEA instrument. Respondents were clinicians: physicians, counselors, therapists, nurses; as well as administrators and policy makers.  View original paper by Ling W, Farabee D, Liepa D, Wu LT. 

  16. Fabrication of Li-intercalated bilayer graphene

    Directory of Open Access Journals (Sweden)

    K. Sugawara

    2011-06-01

    Full Text Available We have succeeded in fabricating Li-intercalated bilayer graphene on silicon carbide. The low-energy electron diffraction from Li-deposited bilayer graphene shows a sharp 3×3R30° pattern in contrast to Li-deposited monolayer graphene. This indicates that Li atoms are intercalated between two adjacent graphene layers and take the same well-ordered superstructure as in bulk C6Li. The angle-resolved photoemission spectroscopy has revealed that Li atoms are fully ionized and the π bands of graphene are systematically folded by the superstructure of intercalated Li atoms, producing a snowflake-like Fermi surface centered at the Γ point. The present result suggests a high potential of Li-intercalated bilayer graphene for application to a nano-scale Li-ion battery.

  17. LiDAR for data efficiency.

    Science.gov (United States)

    2011-09-30

    This report documents the AHMCT research project: LiDAR for Data Efficiency for the Washington State Department of Transportation (WSDOT). The research objective was to evaluate mobile LiDAR technology to enhance safety, determine efficiency ga...

  18. 2002 Willapa Bay LiDAR Project

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA contracted with Spencer B. Gross, Inc. (SBG) to obtain airborne LiDAR of Willapa Bay, Washington during low tide conditions. The LiDAR data was processed to...

  19. Reactions of metallic Li or LiC6 with organic solvents for lithium ion battery

    Science.gov (United States)

    Nakajima, Tsuyoshi; Hirobayashi, Yuki; Takayanagi, Yuki; Ohzawa, Yoshimi

    2013-12-01

    DSC (Differential Scanning Calorimetry) study has been made on the reactions of metallic Li or LiC6 with organic solvents for lithium ion battery. Ethylene carbonate (EC) more easily reacts with metallic Li and LiC6 than propylene carbonate (PC). This may be because formation of lithium alkyl carbonate is more difficult for PC than EC. On the other hand, diethyl carbonate (DEC), ethyl methyl carbonate (EMC) and dimethyl carbonate (DMC) react with Li in the same manner. Reactions of Li and LiC6 with organic solvents have been discussed based on the results of quantum calculation.

  20. Compaction of LiBH4-LiAlH4 nanoconfined in activated carbon nanofibers

    DEFF Research Database (Denmark)

    Plerdsranoy, Praphatsorn; Javadian, Payam; Jensen, Nicholai Daugaard

    2017-01-01

    To enhance volumetric hydrogen capacity for on-board fuel cells, compaction of LiAlH4-LiBH4 nanoconfined in activated carbon nanofibers (ACNF) is for the first time proposed. Loose powders of milled and nanoconfined LiAlH4-LiBH4 samples are compacted under 976 MPa to obtain the pellet samples...... content liberated from milled LiAlH4-LiBH4 pellet is 65% of theoretical capacity in the temperature range of 80–475 °C, while that of nanoconfined LiAlH4-LiBH4 pellet is up to 80% at lower temperature of 100–400 °C. Besides, nanoconfined LiAlH4-LiBH4 pellet shows significant reduction of activation energy...

  1. Tropical Journal of Pharmaceutical Research - Vol 15, No 9 (2016)

    African Journals Online (AJOL)

    Bo Yin, Jian-Jun Ji, Ming Yang, 1833-1837. http://dx.doi.org/10.4314/tjpr.v15i9.3 ... Shuai Liu, Jing Zhang, Xiao-Zhan Zhang, Hui-Hui Zhang, Xing-Wu Li, Shi-Jie Zhang, 1853-1858. http://dx.doi.org/10.4314/tjpr.v15i9.6 ... Pei-Xing Li, Feng Ru, Yan-Min Lu, Lei Zhang, 1889-1896. http://dx.doi.org/10.4314/tjpr.v15i9.11 ...

  2. The Effects of Different Warm-up Volumes on the 100-m Swimming Performance: A Randomized Crossover Study.

    Science.gov (United States)

    Neiva, Henrique P; Marques, Mário C; Barbosa, Tiago M; Izquierdo, Mikel; Viana, João L; Teixeira, Ana M; Marinho, Daniel A

    2015-11-01

    The aim of this study was to compare the effect of 3 different warm-up (WU) volumes on 100-m swimming performance. Eleven male swimmers at the national level completed 3 time trials of 100-m freestyle on separate days and after a standard WU, a short WU (SWU), or a long WU (LWU) in a randomized sequence. All of them replicated some usual sets and drills, and the WU totaled 1,200 m, the SWU totaled 600 m, and the LWU totaled 1,800 m. The swimmers were faster after the WU (59.29 seconds; confidence interval [CI] 95%, 57.98-60.61) and after the SWU (59.38 seconds; CI 95%, 57.92-60.84) compared with the LWU (60.18 seconds; CI 95%, 58.53-61.83). The second 50-m lap after the WU was performed with a higher stroke length (effect size [ES] = 0.77), stroke index (ES = 1.26), and propelling efficiency (ES = 0.78) than that after the SWU. Both WU and SWU resulted in higher pretrial values of blood lactate concentrations [La] compared with LWU (ES = 1.58 and 0.74, respectively), and the testosterone:cortisol levels were increased in WU compared with LWU (ES = 0.86). In addition, the trial after WU caused higher [La] (ES ≥ 0.68) and testosterone:cortisol values compared with the LWU (ES = 0.93). These results suggest that an LWU could impair 100-m freestyle performance. The swimmers showed higher efficiency during the race after a 1200-m WU, suggesting a favorable situation. It highlighted the importance of the [La] and hormonal responses to each particular WU, possibly influencing performance and biomechanical responses during a 100-m race.

  3. China Report, Science & Technology

    Science.gov (United States)

    1987-04-30

    Contracting System Examined (Wang Shengqiao; KEXUEXUE YU KEXUE JISHU GUANLI, No 1, Jan 87) 3 Wu Wushu Discusses New Scientific, Technical Legislation...research units and must not impose uniformity on them across the board. 12581 CSO: 4008/2074 10 NATIONAL DEVELOPMENTS WU WUSHU DISCUSSES NEW...and Technical Legislation Research Work Conference, State Science and Technology Commission Secretary Wu Wushu [0702 2976 2885] made a request about

  4. Acta Aerodynamica Sinica,

    Science.gov (United States)

    1986-11-03

    Xttack; by Wang Zixing and Wu Genxing .............................. 110’) On the Investigation of Separated Flow in the lase,-by Bian Yinqui and Dong...1984). 109 Effect of Winglet on Spatial Vortex of a Solid in Rotation at /49 High Angle of Attack Wang Zixing and Wu Genxing (Nanjing Aeronautical...attract the separation vortex of the slender body. 120 References [1] Wu Genxing and Wang Zixing, Symposium of China Society of Mechanics on "Flow

  5. Self-adjustment of Li in Pb-17Li systems

    Energy Technology Data Exchange (ETDEWEB)

    Feuerstein, H.; Hoerner, L.; Horn, S. [Forschungszentrum Karlsruhe GmbH Technik und Umwelt (Germany)

    1998-10-01

    With temperature gradient capsules and thermal convection loops it is shown, that self-adjustment of 15.8 at.% Li in lead-lithium systems is possible. All which is needed is a diffusion type cold trap with a solid phase. Lithium can be deposited there, it will be released if the concentration is reduced below the eutectic in case of lithium consumption. (orig.) 7 refs.

  6. Nuclear moments of /sup 9/Li

    Energy Technology Data Exchange (ETDEWEB)

    Correll, F.D.; Madansky, L.; Hardekopf, R.A.; Sunier, J.W.

    1983-08-01

    The ground-state magnetic dipole and electric quadrupole moments of the ..beta.. emitter /sup 9/Li (J/sup ..pi../ = (3/2)/sup -/, T/sub 1/2/ = 0.176 s) have been measured for the first time. Polarized /sup 9/Li nuclei were produced in the /sup 7/Li(t,p) reaction, using 5--6 MeV polarized tritons. The recoiling /sup 9/Li nuclei were stopped either in Au foils or in LiNbO/sub 3/ single crystals, and their polarization was detected by measuring the ..beta..-decay asymmetry. Nuclear magnetic resonance techniques were used to depolarize the nuclei, and the resonant frequencies were deduced from changes in the asymmetry. The /sup 9/Li dipole moment was deduced from the measured Larmor frequency in Au; the result, including corrections for diamagnetic shielding and the Knight shift, is Vertical Bar..mu..Vertical Bar = 3.4391(6) ..mu../sub N/. The ratio of the /sup 9/Li quadrupole moment to that of /sup 7/Li was derived from their respective quadrupole couplings in LiNbO/sub 3/; the value is Vertical BarQ( /sup 9/Li)/Q( /sup 7/Li)Vertical Bar = 0. 88 +- 0.18. Both results are in agreement with shell model predictions.

  7. Physiological and Psychophysical Responses to Listening to Music during Warm-Up and Circuit-Type Resistance Exercise in Strength Trained Men

    OpenAIRE

    Hamid Arazi; Abbas Asadi; Morteza Purabed

    2015-01-01

    The purpose of this study was to assess the effects of listening to music during warm-up and resistance exercise on physiological (heart rate and blood pressure) and psychophysical (rating of perceived exertion) responses in trained athletes. Twelve strength trained male participants performed warm-up and resistance exercise without music (WU+RE without M), warm-up and resistance exercise with music (WU+RE with M), WU with M and RE without M, and WU without M and RE with M, with 48 hours spac...

  8. JPRS Report China

    Science.gov (United States)

    1990-04-13

    Grain Problems; Tianjin Port Handles More Exports; Inner Mongolia Personnel Reshuffles Noted; Origin of Taiwan Independence Movement Analyzed; Publisher Wu Feng-shan Discusses Political Trends; and others.

  9. Improving Undergraduates' Argumentative Group Essay Writing through Self-Assessment

    National Research Council Canada - National Science Library

    Fung, Yong Mei; Mei, Hooi Chee

    2015-01-01

    When writing an argumentative essay, writers develop and evaluate arguments to embody, initiate, or simulate various kinds of interpersonal and textual interaction for reader consideration (Wu & Allison, 2003...

  10. Development of overcharge tolerance in Li/FeS and Li/FeS2 cells

    Science.gov (United States)

    Kaun, T. D.; Holifield, T. F.; Nigohosian, M.; Nelson, P. A.

    An innovative application of a self-discharge mechanism for molten-electrolyte Li-alloy/FeS(sub x) cells has led to the development of overcharge-tolerant cells. Conventional Li-alloy/FeS(sub x) battery cells require an electronic charger/equalizer. Two versions of the cell have been demonstrated: LiAl+10 mol percent Li5Al5Fe2/LiCl-LiBr-KBr (BN, MgO)/FeS2 (operated at 400 C) and LiAl+10 mol percent Li2Fe2/LiF-LiCl-LiBr(MgO)/FeS (operated at 475 C). These cells exhibit a unique combination of overcharge capacity and extended trickle-charge tolerance at 2--5 mA/cm. The basis for the self-discharge is diffusion of reduced lithium species across the separator by a lithium-shuttle mechanism that is controlled by the Li-activity of the Li-alloy electrode. A bimodal self-discharge rate (a 20-fold increase toward the end of charge) results from a 150--250 mV step increase in Li-activity. Cells having overcharge tolerance have operated with stable performance for greater than 200 cycles. The overcharge tolerance rates are sufficient for battery cells to exhibit built-in charge/equalization capability.

  11. LiHo(PO34

    Directory of Open Access Journals (Sweden)

    Mokhtar Férid

    2009-02-01

    Full Text Available Lithium holmium(III polyphosphate(V, LiHo(PO34, belongs to the type I of polyphosphates with general formula ALn(PO34, where A is a monovalent cation and Ln is a trivalent rare earth cation. In the crystal structure, the polyphosphate chains spread along the b-axis direction, with a repeat period of four tetrahedra and 21 internal symmetry. The Li and Ho atoms are both located on twofold rotation axes and are surrounded by four and eight O atoms, leading to a distorted tetrahedral and dodecahedral coordination, respectively. The HoO8 polyhedra are isolated from each other, the closest Ho...Ho distance being 5.570 (1 Å.

  12. Üliõpilase meelespea

    Index Scriptorium Estoniae

    2001-01-01

    16. aprill. TPÜ valitsuse otsus nr. 3 kõlab nii : alustada TPÜ lõpetanutele UNESCO, Euroopa Nõukogu ja Euroopa Komisjoni ühise töögrupi poolt välja töötatud ingliskeelse ülikooli diplomi lisa Diplome Supplement (DS) väljastamist üliõpilase soovil ; kinnitada Diploma Supplementì väljastamise kord ja vormistamise maksumus 500 krooni : [täistekst

  13. THE {sup 7}Li/{sup 6}Li ISOTOPE RATIO NEAR THE SUPERNOVA REMNANT IC 443

    Energy Technology Data Exchange (ETDEWEB)

    Taylor, C. J.; Ritchey, A. M.; Federman, S. R. [Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606 (United States); Lambert, D. L., E-mail: corbin.taylor@rockets.utoledo.edu, E-mail: steven.federman@utoledo.edu, E-mail: aritchey@astro.washington.edu, E-mail: dll@astro.as.utexas.edu [W. J. McDonald Observatory, University of Texas at Austin, Austin, TX 78712 (United States)

    2012-05-01

    We present an analysis of {sup 7}Li/{sup 6}Li isotope ratios along four sight lines that probe diffuse molecular gas near the supernova remnant IC 443. Recent gamma-ray observations have revealed the presence of shock-accelerated cosmic rays interacting with the molecular cloud surrounding the remnant. Our results indicate that the {sup 7}Li/{sup 6}Li ratio is lower in regions more strongly affected by these interactions, a sign of recent Li production by cosmic rays. We find that {sup 7}Li/{sup 6}Li Almost-Equal-To 7 toward HD 254755, which is located just outside the visible edge of IC 443, while {sup 7}Li/{sup 6}Li Almost-Equal-To 3 along the line of sight to HD 43582, which probes the interior region of the supernova remnant. No evidence of {sup 7}Li synthesis by neutrino-induced spallation is found in material presumably contaminated by the ejecta of a core-collapse supernova. The lack of a neutrino signature in the {sup 7}Li/{sup 6}Li ratios near IC 443 is consistent with recent models of Galactic chemical evolution, which suggest that the {nu}-process plays only a minor role in Li production.

  14. 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Nooksack

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In July 2012, WSI (Watershed Sciences, Inc.) was contracted by the Puget Sound LiDARConsortium (PSLC) to collect Light Detection and Ranging (LiDAR) data on a...

  15. 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Tulalip Partnership

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In October 2012, WSI (Watershed Sciences, Inc.) was contracted by the Puget Sound LiDAR Consortium (PSLC)to collect Light Detection and Ranging (LiDAR) data on a...

  16. 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Nooksack

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In July 2012, WSI (Watershed Sciences, Inc.) was contracted by the Puget Sound LiDAR Consortium (PSLC) to collect Light Detection and Ranging (LiDAR) data on a...

  17. 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Saddle Mountain

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In October 2013, WSI, a Quantum Spatial Company (QSI), was contracted by the Puget Sound LiDAR Consortium (PSLC) to collect Light Detection and Ranging (LiDAR) data...

  18. 2009 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Lewis County, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data for the Lewis County survey area for the Puget Sound LiDAR Consortium. This data...

  19. 2015 Puget Sound LiDAR Consortium (PSLC) LiDAR: WA DNR Lands (P2)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In June 2014, WSI, a Quantum Spatial Inc. (QSI) company, was contracted by the Puget Sound LiDAR Consortium (PSLC) to collect Light Detection and Ranging (LiDAR)...

  20. 2014 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Willapa Valley (Delivery 1)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In January, 2014 WSI, a Quantum Spatial (QSI) company, was contracted by the Puget Sound LiDAR Consortium (PSLC) to collect Light Detection and Ranging (LiDAR) data...

  1. 2015 Puget Sound LiDAR Consortium (PSLC) LiDAR: WA DNR Lands (P1)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In June 2014, WSI, a Quantum Spatial Inc. (QSI) company, was contracted by the Puget Sound LiDAR Consortium (PSLC) to collect Light Detection and Ranging (LiDAR)...

  2. 2006 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Lewis County, WA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. collected Light Detection and Ranging (LiDAR) data of Western Lewis County for the Puget Sound LiDAR Consortium. This data set covers...

  3. Invariant-mass spectroscopy of {sup 10}Li and {sup 11}Li; Spectroscopie par masse invariante de {sup 10}Li et {sup 11}Li

    Energy Technology Data Exchange (ETDEWEB)

    Zinser, M. [Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany); Humbert, F. [Technische Hochschule Darmstadt, Darmstadt (Germany); Nilsson, T. [Chalmers Tekniska Hoegskola, Goeteborg (Sweden)] [and others

    1999-11-01

    Break-up of secondary {sup 11}Li ion beams (280 MeV/nucleon) on C and Pb targets into {sup 9}Li and neutrons is studied experimentally. Cross sections and neutron multiplicity distributions are obtained characterizing different mechanisms. Invariant-mass spectroscopy for {sup 11}Li and {sup 10}Li is performed. The E1 strength distributions deduced from electromagnetic excitation of {sup 11}Li up to an excitation energy of 4 MeV comprises 8% of the Thomas-Reiche-Kuhn energy-weighted sum rule strength. Two low-lying resonance-like structures are observed for {sup 10}Li at decay energy of 0.21 and 0.62 MeV, the former one carrying 26(10%) of the strength and likely to be associated with an s-wave neutron decay. A strong di-neutron correlation in {sup 11}Li can be discarded. Calculations in a quasi-particle RPA approach are compared with the experimental results for {sup 10}Li and {sup 11}Li. (authors)

  4. Investigation of the $^{8}$Li($^{2}$H,p)$^{9}$Li Reaction at REX-ISOLDE

    CERN Multimedia

    2002-01-01

    We propose to investigate the $^{8}$Li($^{2}$H,p )$^{9}$Li reaction at REX-ISOLDE. The main aim is to test a recently found discrepancy in extracted spectroscopic factors for this reaction. As a byproduct we will obtain improved data relevant for predictions of the $^{8}$Li(n,$\\gamma$)$^{9}$Li rate in inhomogeneous nucleosynthesis. For the full experiment including beam tuning and background measurements we ask for 13 shifts.

  5. Nanoscale LiFePO4 and Li4Ti5O12 for High Rate Li-ion Batteries

    Energy Technology Data Exchange (ETDEWEB)

    Jaiswal, A.; Horne, C.R.; Chang, O.; Zhang, W.; Kong, W.; Wang, E.; Chern, T.; Doeff, M. M.

    2009-08-04

    The electrochemical performances of nanoscale LiFePO4 and Li4Ti5O12 materials are described in this communication. The nanomaterials were synthesized by pyrolysis of an aerosol precursor. Both compositions required moderate heat-treatment to become electrochemically active. LiFePO4 nanoparticles were coated with a uniform, 2-4 nm thick carbon-coating using an organic precursor in the heat treatment step and showed high tap density of 1.24 g/cm3, in spite of 50-100 nm particle size and 2.9 wtpercent carbon content. Li4Ti5O12 nanoparticles were between 50-200 nm in size and showed tap density of 0.8 g/cm3. The nanomaterials were tested both in half cell configurations against Li-metal and also in LiFePO4/Li4Ti5O12 full cells. Nano-LiFePO4 showed high discharge rate capability with values of 150 and 138 mAh/g at C/25 and 5C, respectively, after constant C/25 charges. Nano-Li4Ti5O12 also showed high charge capability with values of 148 and 138 mAh/g at C/25 and 5C, respectively, after constant C/25 discharges; the discharge (lithiation) capability was comparatively slower. LiFePO4/Li4Ti5O12 full cells deliver charge/discharge capacity values of 150 and 122 mAh/g at C/5 and 5C, respectively.

  6. Infrastructure Investment Protection with LiDAR

    Science.gov (United States)

    2012-10-15

    The primary goal of this research effort was to explore the wide variety of uses of LiDAR technology and to evaluate their : applicability to NCDOT practices. NCDOT can use this information about LiDAR in determining how and when the : technology can...

  7. Üliõpilasteatrid peavad Itaalias kongressi

    Index Scriptorium Estoniae

    2006-01-01

    Itaalia väikelinnas Urbinos lõpeb 27. juulil sealse ülikooli teatri Teatro Aenigma ja Rahvusvahelise Üliõpilasteatrite Assotsiatsiooni koostöös kuues tudengiteatrite maailmakongress. Eestist osaleb ja peab ettekande lavastaja ja Tartu Üliõpilasteatri kunstiline juht Kalev Kudu

  8. Saginaw Bay, MI LiDAR

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TASK NAME:(NRCS) Saginaw Bay, MI LiDAR LiDAR Data Acquisition and Processing Production Task USGS Contract No. G10PC00057 Task Order No. G11PD01254 Woolpert Order...

  9. Microstructure Analysis of Synthesized LiBOB

    Directory of Open Access Journals (Sweden)

    Etty Marti Wigayati

    2015-11-01

    Full Text Available Lithium bis (oxalate borate or LiBOB is an active material used as the electrolyte for lithium battery application. LiBOB (LiB(C2O42 powder was prepared from LiOH, H2C2O4 and H3BO3. The employed method was solid state reaction. LiBOB powder produced from the reaction was then observed using SEM and TEM. Surface area was analyzed using Quantachrome Nova 4200e. From the analysis analyzed using XRD to identify the resulting phases, crystal structure, and crystallite size. The functional groups were analyzed using FT-IR. The particle morphology was result, it was seen that the resulted phases were C4LiBO8 and LiB(C2O42.H2O, the crystal structure was orthorhombic with space group Pbca and Pnma. From the particle morphology observation it was shown that micro pores were created irregularly. When the observation was deepened, nanopores with elongated round shape were seen within the micropores. The pore size was approximately 50–100 nm. The surface area, total pore volume, and average pore diameter of LiBOB powder was 88.556 m2/g, 0.4252 cm3/g, and 19.2 nm respectively.

  10. Genetics Home Reference: Li-Fraumeni syndrome

    Science.gov (United States)

    ... syndrome . More than half of all families with Li-Fraumeni syndrome have inherited mutations in the TP53 gene. TP53 is a tumor suppressor gene, which ... the genes associated with Li-Fraumeni syndrome CHEK2 TP53 Related ... syndrome is inherited in an autosomal dominant pattern , which means one ...

  11. The Impact of Li Grain Size on Coulombic Efficiency in Li Batteries

    Science.gov (United States)

    Mehdi, B. Layla; Stevens, Andrew; Qian, Jiangfeng; Park, Chiwoo; Xu, Wu; Henderson, Wesley A.; Zhang, Ji-Guang; Mueller, Karl T.; Browning, Nigel D.

    2016-10-01

    One of the most promising means to increase the energy density of state-of-the-art lithium Li-ion batteries is to replace the graphite anode with a Li metal anode. While the direct use of Li metal may be highly advantageous, at present its practical application is limited by issues related to dendrite growth and low Coulombic efficiency, CE. Here operando electrochemical scanning transmission electron microscopy (STEM) is used to directly image the deposition/stripping of Li at the anode-electrolyte interface in a Li-based battery. A non-aqueous electrolyte containing small amounts of H2O as an additive results in remarkably different deposition/stripping properties as compared to the “dry” electrolyte when operated under identical electrochemical conditions. The electrolyte with the additive deposits more Li during the first cycle, with the grain sizes of the Li deposits being significantly larger and more variable. The stripping of the Li upon discharge is also more complete, i.e., there is a higher cycling CE. This suggests that larger grain sizes are indicative of better performance by leading to more uniform Li deposition and an overall decrease in the formation of Li dendrites and side reactions with electrolyte components, thus potentially paving the way for the direct use of Li metal in battery technologies.

  12. Eutectic mixture Pb-17Li - in-situ production and Li-adjustment

    Energy Technology Data Exchange (ETDEWEB)

    Feuerstein, H. [Kernforschungszentrum Karlsruhe GmbH, Hauptabteilung Ingenieurtechnik (Germany); Wirjantoro, D.A. [Kernforschungszentrum Karlsruhe GmbH, Hauptabteilung Ingenieurtechnik (Germany); Hoerner, L. [Kernforschungszentrum Karlsruhe GmbH, Hauptabteilung Ingenieurtechnik (Germany); Horn, S. [Kernforschungszentrum Karlsruhe GmbH, Hauptabteilung Ingenieurtechnik (Germany)

    1995-12-31

    The adjustment of a requested Li-concentration in mixtures of lead and lithium is possible by adding lead, LiPb or Li{sub 3}Pb. In smaller facilities, even an in-situ production of Pb-17Li from pure lead is possible. The compounds were produced in a glove box. Simple cooling curves of a complete batch are sufficient for the characterization. LiPb and Li{sub 3}Pb can be handled in air for several hundred hours without excess oxidation. The lithium concentration has a strong influence on deuterium transport by the molten mixture. As a result it has to be concluded that, for reason of tritium extraction, the Li concentration should be not higher than required for the eutectic melting point. (orig.).

  13. Direct observation of Li diffusion in Li-doped ZnO nanowires

    Science.gov (United States)

    Li, Guohua; Yu, Lei; Hudak, Bethany M.; Chang, Yao-Jen; Baek, Hyeonjun; Sundararajan, Abhishek; Strachan, Douglas R.; Yi, Gyu-Chul; Guiton, Beth S.

    2016-05-01

    The direct observation of Li diffusion in Li-doped zinc oxide nanowires (NWs) was realized by using in situ heating in the scanning transmission electron microscope (STEM). A continuous increase of low atomic mass regions within a single NW was observed between 200 °C and 600 °C when heated in vacuum, which was explained by the conversion of interstitial to substitutional Li in the ZnO NW host lattice. A kick-out mechanism is introduced to explain the migration and conversion of the interstitial Li (Lii) to Zn-site substitutional Li (LiZn), and this mechanism is verified with low-temperature (11 K) photoluminescence measurements on as-grown and annealed Li-doped zinc oxide NWs, as well as the observation of an increase of NW surface roughing with applied bias.

  14. Investigation of the role of 10Li resonances in the halo structure of 11Li through the Li11(p,dLi10 transfer reaction

    Directory of Open Access Journals (Sweden)

    A. Sanetullaev

    2016-04-01

    Full Text Available The first measurement of the one-neutron transfer reaction 11Li(p,d10Li performed using the IRIS facility at TRIUMF with a 5.7A MeV 11Li beam interacting with a solid H2 target is reported. The 10Li residue was populated strongly as a resonance peak with energy Er=0.62±0.04 MeV having a total width Γ=0.33±0.07 MeV. The angular distribution of this resonance is characterized by neutron occupying the 1p1/2 orbital. A DWBA analysis yields a spectroscopic factor of 0.67±0.12 for p1/2 removal strength from the ground state of 11Li to the region of the peak.

  15. Dynamic changes in charge-transfer resistance at Li metal/Li7La3Zr2O12 interfaces during electrochemical Li dissolution/deposition cycles

    Science.gov (United States)

    Koshikawa, Hiroyuki; Matsuda, Shoichi; Kamiya, Kazuhide; Miyayama, Masaru; Kubo, Yoshimi; Uosaki, Kohei; Hashimoto, Kazuhito; Nakanishi, Shuji

    2018-02-01

    Dynamic changes in the charge-transfer resistance at a Li/Li7La3Zr2O12 (LLZ) interface during lithium (Li) dissolution/deposition cycles are investigated with an alternative current (AC) impedance technique in a three-electrode system. The resistance respectively increases and decreases during electrodissolution and electrodeposition of Li. The resistance does not return to the initial value after one cycle of Li dissolution and deposition, which indicates that the change in resistance during dissolution is larger than that during deposition. Furthermore, the resistance is almost constant when Li deposition proceeds without prior Li dissolution. The respective increase and decrease in the interfacial resistance during Li dissolution and deposition is most likely due to the formation and disappearance of voids at the Li/LLZ interface, and the voids formation during Li dissolution is suggested to be a critical factor that influences the interfacial resistance.

  16. Chen Li: China's elder psychologist.

    Science.gov (United States)

    Blowers, G H

    1998-01-01

    Chen Li is one of a small group of psychologists in China who trained abroad early in their careers, returned to teach and do research, and continued doing so into later life beyond normal retirement age. His contacts with a number of prominent psychologists in England and Germany in the 1930s, and his inadvertent position at the center of a political row in China in the 1960s, leading to the shutting down of psychology for 10 years, made him historically important. Known for his work in organizational psychology and education, he is a distinguished psychologist and educational leader. Although trained as an experimentalist, he now embraces a broader view of psychology but remains emphatic it should be applied to real-life problems.

  17. Li-O2 and Li-S batteries with high energy storage.

    Science.gov (United States)

    Bruce, Peter G; Freunberger, Stefan A; Hardwick, Laurence J; Tarascon, Jean-Marie

    2011-12-15

    Li-ion batteries have transformed portable electronics and will play a key role in the electrification of transport. However, the highest energy storage possible for Li-ion batteries is insufficient for the long-term needs of society, for example, extended-range electric vehicles. To go beyond the horizon of Li-ion batteries is a formidable challenge; there are few options. Here we consider two: Li-air (O(2)) and Li-S. The energy that can be stored in Li-air (based on aqueous or non-aqueous electrolytes) and Li-S cells is compared with Li-ion; the operation of the cells is discussed, as are the significant hurdles that will have to be overcome if such batteries are to succeed. Fundamental scientific advances in understanding the reactions occurring in the cells as well as new materials are key to overcoming these obstacles. The potential benefits of Li-air and Li-S justify the continued research effort that will be needed.

  18. Attainable gravimetric and volumetric energy density of Li-S and li ion battery cells with solid separator-protected Li metal anodes.

    Science.gov (United States)

    McCloskey, Bryan D

    2015-11-19

    As a result of sulfur's high electrochemical capacity (1675 mA h/gs), lithium-sulfur batteries have received significant attention as a potential high-specific-energy alternative to current state-of-the-art rechargeable Li ion batteries. For Li-S batteries to compete with commercially available Li ion batteries, high-capacity anodes, such as those that use Li metal, will need to be enabled to fully exploit sulfur's high capacity. The development of Li metal anodes has focused on eliminating Coulombically inefficient and dendritic Li cycling, and to this end, an interesting direction of research is to protect Li metal by employing mechanically stiff solid-state Li(+) conductors, such as garnet phase Li7La3Zr2O12 (LLZO), NASICON-type Li1+xAlxTi2-x(PO4)3 (LATP), and Li2S-P2S5 glasses (LPS), as electrode separators. Basic calculations are used to quantify useful targets for solid Li metal protective separator thickness and cost to enable Li metal batteries in general and Li-S batteries specifically. Furthermore, maximum electrolyte-to-sulfur ratios that allow Li-S batteries to compete with Li ion batteries are calculated. The results presented here suggest that controlling the complex polysulfide speciation chemistry in Li-S cells with realistic, minimal electrolyte loading presents a meaningful opportunity to develop Li-S batteries that are competitive on a specific energy basis with current state-of-the-art Li ion batteries.

  19. Epstein-Barr virus latent gene sequences as geographical markers of viral origin: unique EBNA3 gene signatures identify Japanese viruses as distinct members of the Asian virus family.

    Science.gov (United States)

    Sawada, Akihisa; Croom-Carter, Deborah; Kondo, Osamu; Yasui, Masahiro; Koyama-Sato, Maho; Inoue, Masami; Kawa, Keisei; Rickinson, Alan B; Tierney, Rosemary J

    2011-05-01

    Polymorphisms in Epstein-Barr virus (EBV) latent genes can identify virus strains from different human populations and individual strains within a population. An Asian EBV signature has been defined almost exclusively from Chinese viruses, with little information from other Asian countries. Here we sequenced polymorphic regions of the EBNA1, 2, 3A, 3B, 3C and LMP1 genes of 31 Japanese strains from control donors and EBV-associated T/NK-cell lymphoproliferative disease (T/NK-LPD) patients. Though identical to Chinese strains in their dominant EBNA1 and LMP1 alleles, Japanese viruses were subtly different at other loci. Thus, while Chinese viruses mainly fall into two families with strongly linked 'Wu' or 'Li' alleles at EBNA2 and EBNA3A/B/C, Japanese viruses all have the consensus Wu EBNA2 allele but fall into two families at EBNA3A/B/C. One family has variant Li-like sequences at EBNA3A and 3B and the consensus Li sequence at EBNA3C; the other family has variant Wu-like sequences at EBNA3A, variants of a low frequency Chinese allele 'Sp' at EBNA3B and a consensus Sp sequence at EBNA3C. Thus, EBNA3A/B/C allelotypes clearly distinguish Japanese from Chinese strains. Interestingly, most Japanese viruses also lack those immune-escape mutations in the HLA-A11 epitope-encoding region of EBNA3B that are so characteristic of viruses from the highly A11-positive Chinese population. Control donor-derived and T/NK-LPD-derived strains were similarly distributed across allelotypes and, by using allelic polymorphisms to track virus strains in patients pre- and post-haematopoietic stem-cell transplant, we show that a single strain can induce both T/NK-LPD and B-cell-lymphoproliferative disease in the same patient.

  20. Development of Advanced Li Rich xLi2MO3 (1-x)LiMO2 Composite Cathode for High Capacity Li Ion Batteries

    Science.gov (United States)

    2016-12-22

    material were prepared by dispersing the powder in ethanol and adding a few drops of the resulting suspension to a holey TEM copper grid. For cycled...Li12Mn0.54Ni0.13Co0.13O2 particle shown in Fig.5 (b) The bright diffraction spots represent the (104) plane and (110) plane of the LiMO2 (R m) which is...marked as red circle. It is noted that these bright fundamental diffraction spots also overlap with (131) plane and (060) plane of the Li2MnO3 (C2/m

  1. Review of the East Palaearctic and North Oriental Psyttalia Walker, with the description of three new species (Hymenoptera, Braconidae, Opiinae)

    NARCIS (Netherlands)

    Wu, Q.; Achterberg, van C.; Tan, J.-L.; Chen, X.-X.

    2016-01-01

    The East Palaearctic and North Oriental species of the genus Psyttalia Walker (Hymenoptera, Braconidae, Opiinae) are reviewed. Three new species are described and illustrated: P. latinervis Wu & van Achterberg, sp. n. and P. majocellata Wu & van Achterberg, sp. n. from China, and P. spectabilis van

  2. Developing institutional collaboration between Wageningen university and the Chinese academy of agricultural sciences

    NARCIS (Netherlands)

    Bonnema, A.B.; Lin, Z.; Qu, L.; Jacobsen, E.

    2006-01-01

    Scientific co-operation between the Chinese Academy of Agricultural Sciences (CAAS) and Wageningen University (WU) has been underway since 1990, especially in the field of plant sciences. In 2001, CAAS and WU initiated a formal joint PhD training programme to further structure their co-operation.

  3. Journal of Earth System Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science. ShaoFei Wu. Articles written in Journal of Earth System Science. Volume 126 Issue 4 June 2017 pp 48. Joint pattern of seasonal hydrological droughts and floods alternation in China's Huai River Basin using the multivariate L-moments · ShaoFei Wu Xiang Zhang DunXian ...

  4. DMPD: Mechanism of age-associated up-regulation in macrophage PGE2 synthesis. [Dynamic Macrophage Pathway CSML Database

    Lifescience Database Archive (English)

    Full Text Available 15331118 Mechanism of age-associated up-regulation in macrophage PGE2 synthesis. Wu...e-associated up-regulation in macrophage PGE2 synthesis. PubmedID 15331118 Title Mechanism of age-associated... up-regulation in macrophage PGE2 synthesis. Authors Wu D, Meydani SN. Publicatio

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Anhua Wu. Articles written in Bulletin of Materials Science. Volume 27 Issue 4 August 2004 pp 333-336 Crystal Growth. Bridgman growth and defects of Nd : Sr3Ga2Ge4O14 laser crystals · Jiaxuan Ding Anhua Wu Jiayue Xu · More Details Abstract Fulltext PDF.

  6. Women in physics

    CERN Document Server

    Indovino, Shaina

    2013-01-01

    What does it take to be a physicist? Lise Meitner, Katharine Blodgett, Maria Goeppert-Mayer, Chien-Shiung Wu, Ursula Franklin, Argelia Velez-Rodriguez, Sau Lan Wu, Shirley Ann Jackson, Lisa Randall and opportunities for women in physics today.

  7. Software Quality Measurement for Distributed Systems. Volume 1.

    Science.gov (United States)

    1983-07-01

    Institute of Technology, Pasadena, CA, Jun. 1980 (CHW) ( Chu , W. and Chew, P., "Computer Networks: A Tutorial", IEEE Comput. Soc., New York, 1980) (COD...Pragmatic View of Distributed Processing Systems", IEEE Conput. Soc., Los Alemedas, California, 1980) (WU) Wu, Chuan-lin, & Feng, Tsu -yun. "A software

  8. Nested Nanotherapeutics for Drug Synergy Enhancement in Breast Cancer Therapy

    Science.gov (United States)

    2014-09-01

    feedback loop activation – Task 2, Aim 2 Reportable Outcomes • Refereed publications - Ruiz-Esparza, G.U.; Wu, S.; Segura-Ibarra, V.; Cara , F.E...32, 2309-23. *Contributed equally - Blanco, E.; Sangai, T.; Wu, S.; Hsiao, A.; Ruiz-Esparza, G.U.; Gonzalez- Delgado, C.A.; Cara , F.E.; Granados

  9. Free vibrations of a multi-span Timoshenko beam carrying multiple ...

    Indian Academy of Sciences (India)

    Wu (2002) obtained the natural frequencies and mode shapes of the beams carrying any number of two-degrees of freedom spring-mass systems by using finite element method (FEM). Wu & Chen (2001) used the numerical assembly technique for free vibration analysis of a Timoshenko beam carrying multiple spring-mass.

  10. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Productivity and biochemical properties of green tea in response to full-length and functional fragments of HpaGXooc, a harpin protein from the bacterial rice leaf streak pathogen Xanthomonas oryzae pv. oryzicola · Xiaojing Wu Tingquan Wu Juying Long Qian Yin Yong Zhang Lei Chen Ruoxue Liu Tongchun Gao Hansong ...

  11. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. M-J Wu. Articles written in Sadhana. Volume 35 Issue 5 October 2010 pp 631-647. Development of numerical modelling of analysis program for energy-dissipating behaviour of velocity dependent hydraulic damper · M-H Shih W-P Sung M-J Wu · More Details Abstract Fulltext PDF. A relief valve ...

  12. Fundamental Investigations into the Infrared Properties of Carbon Nanotubes

    Science.gov (United States)

    2013-01-23

    Vallejo , Rongtao Lu, Judy Wu. Development of Textured Magnesium Oxide Templates on Amorphous Polymer SurfacesUsing Ion-Beam-Assisted Deposition, Applied...Applied Physics Letters 99, 023111 (2011) 18. A. Elliot, Vallejo , R.T. Lu, and J.Z. Wu, “Development of Textured Magnesium Oxides Templates on

  13. 团队悟性创新理论框架

    DEFF Research Database (Denmark)

    Xin, Wang; Li, Peter Ping

    2017-01-01

    ,imagination, symbolism, metaphor, analogy, and insight. Based on the literature about knowledge creation and organizational learning, the new framework of "Wu"-based team-level innovation emerges from four cases of "Wu"-based knowledge creation in a Chinese aerospace team, with a special reference to the Western notion...

  14. Bulletin of the Chemical Society of Ethiopia - Vol 30, No 1 (2016)

    African Journals Online (AJOL)

    Synthesis, Hirshfeld surface analyses and magnetism of a 1D Mn(II) complex · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. L. Lu, J. Wang, W. P. Wu, X. R. Wu, A. Kumar, 111-118. http://dx.doi.org/10.4314/bcse.v30i1.10 ...

  15. A Review of Cyanobacterial Odorous and Bioactive Metabolites: Impacts and Management Alternatives in Aquaculture

    Science.gov (United States)

    2008-05-06

    cyanobacterium Lyngbya majuscula. Phytochemistry 49, 2387–2389. Martin, J.F., McCoy, C.P., Greenleaf, W., Bennett, L., 1987. Analysis of 2...Bioactive natural products frommarine cyanobacteria for drug discovery. Phytochemistry 68, 954–979. Tang, J.W., Wu, Q.Y., Hao, H.W., Chen, Y., Wu, M

  16. Hopes for Confucian Pedagogy in China?

    Science.gov (United States)

    Hayhoe, Ruth

    2014-01-01

    This commentary on Wu Zongjie's article "Interpretation, autonomy and transformation: Chinese pedagogic discourse in a cross-cultural perspective" begins by suggesting the usefulness of Wu's polar opposite depiction of Confucian and modern pedagogy as ideal types for comparative exploration. It goes on to suggest that the term…

  17. Reference: 188 [Arabidopsis Phenome Database[Archive

    Lifescience Database Archive (English)

    Full Text Available 188 http://metadb.riken.jp/db/SciNetS_ria224i/cria224u4ria224u15753038i Wu Xuelin ...STIMPY/WOX9 for Arabidopsis meristem growth and maintenance. 5 436-40 15753038 2005 Mar Current biology Dabi Tsegaye|Weigel Detlef|Wu Xuelin

  18. 77 FR 34342 - Order Denying Export Privileges

    Science.gov (United States)

    2012-06-11

    ... Alex Wu, Currently Incarcerated at: Inmate Number: 40887-424 FMC Devens, Federal Medical Center, P.O... addresses at: Inmate Number: 40887-424, FMC Devens, Federal Medical Center, P.O. Box 879, Ayer, MA 01432 and... person, firm, corporation, or business organization related to Wu by affiliation, ownership, control or...

  19. Expression analysis and characteristics of hypothetical protein ...

    African Journals Online (AJOL)

    W Zhang, H Lan, T Wu, C Jiang, Z Lv, Z Nie, X Wu, Y Zhang. Abstract. We cloned a cDNA from silkworm pupal cDNA library and found that, it encodes LOC778500 protein (a “hypothetical protein” in the National Center for Biotechnology Information (NCBI) database). Thus, we named it BmLOC778500 (Bombyx mori ...

  20. First Principles Investigation of Li/Fe-Oxide as a High Energy Material for Hybrid All-in-One Li-ion/Li-O2 Batteries

    Science.gov (United States)

    Kinaci, Alper; Trahey, Lynn; Thackeray, Michael M.; Kirklin, Scott; Wolverton, Christopher; Chan, Maria K. Y.; CenterElectrical Energy Storage Collaboration

    2014-03-01

    We recently introduced a vision for high energy all-in-one electrode/electrocatalyst materials that can be used in hybrid Li-ion/Li-O2 (Li-air) cells. Recent experiments using Li5FeO4 demonstrated substantially smaller voltage polarizations and hence higher energy efficiency compared to standard Li-O2 cells forming Li2O2. The mechanism by which the charge process activates the Li5FeO4, however, is not well understood. Here, we present first principles density functional theory (DFT) calculations to establish the thermodynamic conditions for the extraction of Li/Li +O from Li5FeO4. A step-by-step, history-dependent, removal process has been followed and the stability of the Li and Li +O deficient samples is investigated on the basis of the energies of the extraction reactions. Various stages of Li/Li +O removal are identified, and structural changes and electronic structure evolution, as well as computed XRD, XANES, and PDF characterizations are reported.

  1. Li ion conductivities in boro-tellurite glasses

    Indian Academy of Sciences (India)

    Unknown

    Abstract. Lithium ion conductivity has been investigated in a boro-tellurite glass system, LiCl⋅LiBO2⋅TeO2. In the absence of LiCl, the conductivity increases with increasing non-bridging oxygen (NBO) concentration. LiCl addition has little influence on total conductivity although the observed barriers are low. Formation of.

  2. First-principle studies on the Li-Te system

    Science.gov (United States)

    Wang, Youchun; Tian, Fubo; Li, Da; Duan, Defang; Liu, Yunxian; Liu, Bingbing; Zhou, Qiang; Cui, Tian

    2017-01-01

    First-principle evolutionary calculation was performed to search for all probable stable lithium tellurium compounds. In addition to the well-known structures of Fm-3m Li2Te and Pnma Li2Te, several novel structures, including those of P4/nmm Li2Te, Imma Li8Te2, and C2/m Li9Te2, were determined under high pressure. The transformation sequence of Li2Te induced by pressure was presented as follows. The phase transition occurred at 7.5 GPa while transforming from Fm-3m phase to Pnma structure, then transformed to P4/nmm phase at 14 GPa. P4/nmm Li2Te can remain stable at least up to 140 GPa. Li8Te2 and Li9Te2 were stable at 8-120 GPa and 80-120 GPa, respectively. Interestingly, Li8Te2 and Li9Te2 were predicted to be metallic under high pressure, Li2Te would metalize on compression. P4/nmm Li2Te is likely a super ionic conductor due to the special characteristic. Metallic P4/nmm Li2Te may be a candidate mixed conductor material under extreme pressure. Charge transfer was studied using Bader charge analysis. Charge transferred from Li to Te, and the relative debilitated ionicity between Li and Te atoms existed at high pressure.

  3. Pb-17Li-bismuth interactions: an electrical resistivity study

    Energy Technology Data Exchange (ETDEWEB)

    Hubberstey, Peter (Chemistry Department, University of Nottingham, Nottingham NG7 2RD (United Kingdom)); Sample, Tony (Institute for Advanced Materials, CEC, JRC-Ispra, I-21020 Ispra (Vatican City State, Holy See) (Italy)); Capaldi, M.J. (Chemistry Department, University of Nottingham, Nottingham NG7 2RD (United Kingdom)); Barker, M.G. (Chemistry Department, University of Nottingham, Nottingham NG7 2RD (United Kingdom))

    1994-11-01

    The reaction of bismuth with Pb-Li alloys has been studied using resistivity-composition and resistance - temperature measurements to monitor the lithium content of the alloy. The process follows a solution - precipitation mechanism. The solubility of bismuth was found to be 1.5x10[sup -1] mol% (1800 wppm) in Pb-17.04Li (i.e., a Pb-Li alloy containing 17.04 mol% Li) at 723 K and 1.4x10[sup -1] mol% (1800 wppm) in Pb-22.13Li at 673 K. The Li : Bi ratio in the solid product was found to be 3.07 for Pb-17.04Li, 3.21 for Pb-22.13Li and 3.28 for Pb-17.16Li, indicating Li[sub 3]Bi formation. These observations are interpreted using a phase diagram developed for the Pb-Bi-Li ternary system from the phase relationships in the constituent binary systems. It is dominated by the precipitation field for Li[sub 3]Bi which extends from the Bi-Li side almost as far as the Pb-Li side. The dominance of Li[sub 3]Bi is attributed to its extreme stability as evidenced by both its high melting point (1418 K) and free energy of formation ([Delta][sub f]G (Li[sub 3]Bi, c, 723 K)=-212.8 kJ mol[sup -1]). ((orig.))

  4. Antiperovskite Li3OCl Superionic Conductor Films for Solid-State Li-Ion Batteries.

    Science.gov (United States)

    Lü, Xujie; Howard, John W; Chen, Aiping; Zhu, Jinlong; Li, Shuai; Wu, Gang; Dowden, Paul; Xu, Hongwu; Zhao, Yusheng; Jia, Quanxi

    2016-03-01

    Antiperovskite Li3OCl superionic conductor films are prepared via pulsed laser deposition using a composite target. A significantly enhanced ionic conductivity of 2.0 × 10-4 S cm-1 at room temperature is achieved, and this value is more than two orders of magnitude higher than that of its bulk counterpart. The applicability of Li3OCl as a solid electrolyte for Li-ion batteries is demonstrated.

  5. Compilation of 1990 Annual Reports of the Navy ELF Communications System Ecological Monitoring Program. Volume 1. Tabs A, B.

    Science.gov (United States)

    1991-08-01

    Margaret Rowan Gale Martin F. Jurgensen Hal 0. Liechty Glenn D. Mroz Hua Ouyang David D. Reed Elizabeth Jones Reed Yun Wu Yun F. Zhang RELEASING AUTHORITY...SPECIES I David D. Reed, Elizabeth A. Jones, 3 Michael J. Holmes, and Leslie G. Fuller 1/ I I I U 1/ The authors are, respectively, Professor, School of...01I C4 - -i (i-V > :5~ CI LI TI O10 1 0 00 a, CD: ONINIMWJ SSUW IdIiINI AO NOIA ~OdOdd -86-1 CLI CD c- LOA 0n 0 C CD (ai -o nE - 70 LJ C C4- ra - ca. E

  6. Chinese Traditional Philosophy and Indigenous Management Research

    DEFF Research Database (Denmark)

    Li, Xin

    2013-01-01

    This paper focuses on three key notions of Chinese traditional philosophy, i.e., Zhongyong, Yin Yang, and Wu, pointing out the possible mistakes in Prof. Peter Ping Li's arguments as well as some questions that are often neglected and taken for granted. The author posits, Chinese traditional...... philosophy is a system of thought distinct from the Western philosophy; while the Western philosophy is mainly concerned about the True, i.e., the objective knowledge of the world, the aim of Chinese traditional philosophy is the pursuit of the Good, i.e., the unification of heaven and human....

  7. A revised correlation based on heat transfer model of slug flow in mini/micro-channels

    Science.gov (United States)

    Li, Xuejiao; Jia, Li; Yin, Liaofei; An, Zhoujian

    2017-07-01

    As flow boiling in mini/micro-channel, slug flow was corresponding to the optimal heat transfer ability owing to the evaporation of thin liquid film. Based on the heat transfer mechanism of liquid film evaporation, a simplified heat transfer model of slug flow was proposed. Li-Wu heat transfer correlation (Int J Heat Mass Transf 53(9): 1778-1787, 2010) was revised by introducing evaporation parameter, C e . With the evaporation parameter, C e , the revised correlation predicted the slug flow database with MAE (Mean Absolute Error) 25.14%, which improved the prediction accuracy remarkably.

  8. Northeast Artificial Intelligence Consortium (NAIC). Volume 3. The Versatile Maintenance Expert System (VMES)

    Science.gov (United States)

    1990-12-01

    College ( CUNY ) New York, NY 1987 Michael J. Almeida Assistant Professor Penn State University Dept. of Computer Science Whitmore Lab University Park...Tien Kingsbury, Linda A. Williams, Francine Delgado, Diane M. Liu, Paul C-W Wu, W-C Jevons Fenrich, Richard Menon, Rajeev Artificial Intelligence...He, Hung Chyi Liu, Peter (Sai-Ming) Su, Suyuan C. Hsu, An-Mei Lo, Yu Li Yang, Lien Jang Jou, Chen-Jye Lung, Hsi-Hong Yao, Jo-Lan Kellick, Diane

  9. Correlation between radioactivity and chemotherapeutics of the 111In-VNB-liposome in pharmacokinetics and biodistribution in rats

    OpenAIRE

    Tsai TH; Lee TW; Chang TJ; Ho CL; Chen LC; Wu YT; Huang CM; Chang CH; Lee WC

    2012-01-01

    Wen-Chuan Lee1,*, Chih-Hsien Chang2,3,*, Chih-Min Huang1, Yu-Tse Wu1, Liang-Cheng Chen2, Chung-Li Ho2, Tsui-Jung Chang2, Te-Wei Lee2, Tung-Hu Tsai1,41Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, 2Division of Isotope Application, Institute of Nuclear Energy Research, Taoyuan, 3Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, 4Department of Education and Research, Taipei City Hospital, Taipei, Tai...

  10. Pattern recognition in speech and language processing

    CERN Document Server

    Chou, Wu

    2003-01-01

    Minimum Classification Error (MSE) Approach in Pattern Recognition, Wu ChouMinimum Bayes-Risk Methods in Automatic Speech Recognition, Vaibhava Goel and William ByrneA Decision Theoretic Formulation for Adaptive and Robust Automatic Speech Recognition, Qiang HuoSpeech Pattern Recognition Using Neural Networks, Shigeru KatagiriLarge Vocabulary Speech Recognition Based on Statistical Methods, Jean-Luc GauvainToward Spontaneous Speech Recognition and Understanding, Sadaoki FuruiSpeaker Authentication, Qi Li and Biing-Hwang JuangHMMs for Language Processing Problems, Ri

  11. Energy & Energetics

    Science.gov (United States)

    2012-06-22

    produced chemical products in pseudo- aluminized explosive powders explosion,” J. Phys. D 40, 3541–3544 (2007). 6. Y. Song, J.-H. Wu, M.-A. Xue, Y.-P...Rietveld analysis of X-ray powder diffraction data, infrared spectroscopy, X-ray photoelectron spectroscopy and Mossbauer spectroscopy. The majority of...LiCoPO4 J.L. Allen ∗, T.R. Jow, J. Wolfenstine U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, MD 20783-1197, USA a r t i c l e i n f

  12. Mesoporous bioactive glass surface modified poly(lactic-co-glycolic acid) electrospun fibrous scaffold for bone regeneration

    OpenAIRE

    Chen, Shijie; Jian, Zhiyuan; Huang, Linsheng; Xu, Wei; Liu, Shaohua; Song, Dajiang; Wan, Zongmiao; Vaughn, Amanda; Zhan, Ruisen; Zhang, Chaoyue; Wu, Song; Hu, Minghua; Li, Jinsong

    2015-01-01

    Shijie Chen,1,* Zhiyuan Jian,2,* Linsheng Huang,2,* Wei Xu,3,* Shaohua Liu,4 Dajiang Song,3 Zongmiao Wan,3 Amanda Vaughn,5 Ruisen Zhan,1 Chaoyue Zhang,1 Song Wu,1 Minghua Hu,6 Jinsong Li1 1Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People’s Republic of China; 2The First General Surgery Department of Shiyan Taihe Hospital Affiliated to Hubei University of Medicine, Shiyan, People’s Republic of China; 3Department of ...

  13. EKA tootedisaini üliõpilane...

    Index Scriptorium Estoniae

    2005-01-01

    Eesti Kunstiakadeemia tootedisaini osakonna IV kursuse üliõpilane Riho Tiivel võitis Itaalias toimunud disainikonkursi "ReAL 13 - Eating Anywhere" peapreemia oma alumiiniumist lusikaga "Spoon Container"

  14. Li-ion Battery Aging Datasets

    Data.gov (United States)

    National Aeronautics and Space Administration — This data set has been collected from a custom built battery prognostics testbed at the NASA Ames Prognostics Center of Excellence (PCoE). Li-ion batteries were run...

  15. Comment on Li pellet Conditioning in TFTR

    Energy Technology Data Exchange (ETDEWEB)

    R.V. Budny

    2011-05-23

    Li pellet conditioning in TFTR results in a reduction of the edge electron density which allows increased neutral beam penetration, central heating, and fueling. Consequently the temperature profiles became more peaked with higher central Ti, Te, and neutron emission rates.

  16. Iowa LiDAR Mapping Project

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This is collection level metadata for LAS and ASCII data files from the statewide Iowa Lidar Project. The Iowa Light Detection and Ranging (LiDAR) Project collects...

  17. USGS Atchafalaya 2 LiDAR

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Light Detection and Ranging (LiDAR) dataset is a survey of the Atchafalaya Basin project area. The entire survey area for Atchafalaya encompasses approximately...

  18. Invariant-mass spectroscopy of {sup 10}Li and {sup 11}Li

    Energy Technology Data Exchange (ETDEWEB)

    Zinser, M. [Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany); Humbert, F.; Nilsson, T.; Schwab, W.; Simon, H.; Aumann, T.; Borge, M.J.G.; Chulkov, L.V.; Cub, J.; Elze, T.W.; Emling, H.; Geissel, H.; Guillemaud-Mueller, D.; Hansen, P.G.; Holzmann, R.; Irnich, H.; Jonson, B.; Kratz, J.V.; Kulessa, R.; Leifels, Y.; Lenske, H.; Magel, A.; Mueller, A.C.; Muenzenberg, G.; Nickel, F.; Nyman, G.; Richter, A.; Riisager, K.; Scheidenberger, C.; Schrieder, G.; Stelzer, K.; Stroth, J.; Surowiec, A.; Tengblad, O.; Wajda, E.; Zude, E.

    1997-06-16

    Break-up of secondary {sup 11}Li ion beams (280 MeV/nucleon) on C and Pb targets into {sup 9}Li and neutrons is studied experimentally. Cross sections and neutron multiplicity distributions are obtained, characterizing different reaction mechanisms. Invariant-mass spectroscopy for {sup 11}Li and {sup 10}Li is performed. The E1 strength distribution, deduced from electromagnetic excitation of {sup 11}Li up to an excitation energy of 4 MeV comprises {proportional_to}8% of the Thomas-Reiche-Kuhn energy-weighted sum rule strength. Two low-lying resonance-like structures are observed for {sup 10}Li at decay energies of 0.21(5) and 0.62(10) MeV, the former one carrying 26(10)% of the strength and likely to be associated with an s-wave neutron decay. A strong di-neutron correlation in {sup 11}Li can be discarded. Calculations in a quasi-particle RPA approach are compared with the experimental results for {sup 10}Li and {sup 11}Li. (orig.).

  19. Molecular evolution of the Li/li chemical defence polymorphism in white clover (Trifolium repens L.).

    Science.gov (United States)

    Olsen, K M; Sutherland, B L; Small, L L

    2007-10-01

    White clover (Trifolium repens) is naturally polymorphic for cyanogenesis (hydrogen cyanide release following tissue damage). The ecological factors favouring cyanogenic and acyanogenic plants have been examined in numerous studies over the last half century, making this one of the best-documented examples of an adaptive polymorphism in plants. White clover cyanogenesis is controlled by two, independently segregating Mendelian genes: Ac/ac controls the presence/absence of cyanogenic glucosides; and Li/li controls the presence/absence of their hydrolysing enzyme, linamarase. In this study, we examine the molecular evolution and population genetics of Li as it relates to the cyanogenesis polymorphism. We report here that Li exists as a single-copy gene in plants possessing linamarase activity, and that the absence of enzyme activity in li/li plants is correlated with the absence of much or all of the gene from the white clover genome. Consistent with this finding, we confirm by reverse transcription-polymerase chain reaction that Li gene expression is absent in plants lacking enzyme activity. In a molecular population genetic analysis of Li and three unlinked genes using a worldwide sample of clover plants, we find an absence of nucleotide variation and statistically significant deviations from neutrality at Li; these findings are consistent with recent positive directional selection at this cyanogenesis locus.

  20. Uniform second Li ion intercalation in solid state ϵ-LiVOPO{sub 4}

    Energy Technology Data Exchange (ETDEWEB)

    Wangoh, Linda W.; Quackenbush, Nicholas F. [Department of Physics, Applied Physics and Astronomy, Binghamton University, Binghamton, New York 13902 (United States); Sallis, Shawn [Materials Science and Engineering, Binghamton University, Binghamton, New York 13902 (United States); Wiaderek, Kamila M.; Ma, Lu; Wu, Tianpin; Chapman, Karena W. [X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Lin, Yuh-Chieh; Ong, Shyue Ping [Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive 0448, La Jolla, California 92093 (United States); Wen, Bohua; Chernova, Natasha A.; Whittingham, M. Stanley [NECCES, Binghamton University, Binghamton, New York 13902 (United States); Guo, Jinghua [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Lee, Tien-Lin; Schlueter, Christoph [Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE (United Kingdom); Piper, Louis F. J., E-mail: lpiper@binghamton.edu [Department of Physics, Applied Physics and Astronomy, Binghamton University, Binghamton, New York 13902 (United States); Materials Science and Engineering, Binghamton University, Binghamton, New York 13902 (United States)

    2016-08-01

    Full, reversible intercalation of two Li{sup +} has not yet been achieved in promising VOPO{sub 4} electrodes. A pronounced Li{sup +} gradient has been reported in the low voltage window (i.e., second lithium reaction) that is thought to originate from disrupted kinetics in the high voltage regime (i.e., first lithium reaction). Here, we employ a combination of hard and soft x–ray photoelectron and absorption spectroscopy techniques to depth profile solid state synthesized LiVOPO{sub 4} cycled within the low voltage window only. Analysis of the vanadium environment revealed no evidence of a Li{sup +} gradient, which combined with almost full theoretical capacity confirms that disrupted kinetics in the high voltage window are responsible for hindering full two lithium insertion. Furthermore, we argue that the uniform Li{sup +} intercalation is a prerequisite for the formation of intermediate phases Li{sub 1.50}VOPO{sub 4} and Li{sub 1.75}VOPO{sub 4}. The evolution from LiVOPO{sub 4} to Li{sub 2}VOPO{sub 4} via the intermediate phases is confirmed by direct comparison between O K–edge absorption spectroscopy and density functional theory.

  1. Tracing Waste Water with Li isotopes

    Science.gov (United States)

    Millot, R.; Desaulty, A. M.

    2015-12-01

    The contribution of human activities such as industries, agriculture and various domestic inputs, becomes more and more significant in the chemical composition of the dissolved load of rivers. Human factors act as a supplementary key process. Therefore the mass-balance for the budget of catchments and river basins include anthropogenic disturbances. In the present study, we investigate waste water tracing by the use of Li isotopes in a small river basin near Orléans in France (l'Egoutier, 15 km² and 5 km long). It is well known that Li has strategic importance for numerous industrial applications including its use in the production of batteries for both mobile devices (computers, tablets, smartphones, etc.) and electric vehicles, but also in pharmaceutical formulations. In the present work, we collected river waters samples before and after the release from a waste water treatment plant connected to an hospital. Lithium isotopic compositions are rather homogeneous in river waters with δ7Li values around -0.5‰ ± 1 along the main course of the stream (n=7). The waste water sample is very different from the natural background of the river basin with Li concentration being twice of the values without pollution and significant heavy lithium contribution (δ7Li = +4‰). These preliminary results will be discussed in relation with factors controlling the distribution of Li and its isotopes in this specific system and compared with the release of other metals such as Pb or Zn.

  2. One-pot liquid phase synthesis of (100-x)Li3PS4-xLiI solid electrolytes

    Science.gov (United States)

    Phuc, Nguyen Huu Huy; Hirahara, Eito; Morikawa, Kei; Muto, Hiroyuki; Matsuda, Atsunori

    2017-10-01

    (100-x)Li3PS4-xLiI solid electrolytes are successfully prepared using a simple process proposed in this study. The results show that the heat-treatment process plays a crucial role in the formation of the final product. In the case of x = 33.3%, 2Li3PS4-1LiI, a nearly pure crystalline phase of Li7P2S8I (LPSI), is obtained. The cyclic voltammogram result and DC polarization curves indicate that the interfacial layer between LPSI and the Li metal is stable. Li2S, LiI, Li5P, Li4P2S6, and some unknown substances were detected in the interfacial layer by XRD.

  3. Li-7 abundances in halo stars: Testing stellar evolution models and the primordial Li-7 abundance

    Science.gov (United States)

    Chaboyer, Brian; Demarque, P.

    1994-01-01

    A large number of stellar evolution models with (Fe/H) = -2.3 and -3.3 have been calculated in order to determine the primordial Li-7 abundance and to test current stellar evolution models by a comparison to the extensive database of accurate Li abundances in extremely metal-poor halo stars observed by Thorburn (1994). Standard models with gray atmospheres do a very good job of fitting the observed Li abundances in stars hotter than approximately 5600 K. They predict a primordial. Li-7 abundance of log N(Li) = 2.24 +/- 0.03. Models which include microscopic diffusion predict a downward curvature in the Li-7 destruction isochrones at hot temperatures which is not present in the observations. Thus, the observations clearly rule out models which include uninhibited microscopic diffusion of Li-7 from the surface of the star. Rotational mixing inhibits the microscopic diffusion and the (Fe/H) = -2.28 stellar models which include both diffusion and rotational mixing provide an excellent match to the mean trend in T(sub eff) which is present in the observations. Both the plateau stars and the heavily depleted cool stars are well fit by these models. The rotational mixing leads to considerable Li-7 depletion in these models and the primordial Li-7 abundance inferred from these models is log N(Li) = 3.08 +/- 0.1. However, the (Fe/H) = -3.28 isochrones reveal problems with the combined models. These isochrones predict a trend of decreasing log N(Li) with increasing T(sub eff) which is not present in the observations. Possible causes for this discrepancy are discussed.

  4. Synthesis and electrochemistry of cubic rocksalt Li-Ni-Ti-O compounds in the phase diagram of LiNiO 2-LiTiO 2-Li[Li 1/3Ti 2/3]O 2

    Science.gov (United States)

    Zhang, Lianqi; Noguchi, Hideyuki; Li, Decheng; Muta, Takahisa; Wang, Xiaoqing; Yoshio, Masaki; Taniguchi, Izumi

    On the basis of extreme similarity between the triangle phase diagrams of LiNiO 2-LiTiO 2-Li[Li 1/3Ti 2/3]O 2 and LiNiO 2-LiMnO 2-Li[Li 1/3Mn 2/3]O 2, new Li-Ni-Ti-O series with a nominal composition of Li 1+ z/3Ni 1/2- z/2Ti 1/2+ z/6O 2 (0 ≤ z ≤ 0.5) was designed and attempted to prepare via a spray-drying method. XRD identified that new Li-Ni-Ti-O compounds had cubic rocksalt structure, in which Li, Ni and Ti were evenly distributed on the octahedral sites in cubic closely packed lattice of oxygen ions. They can be considered as the solid solution between cubic LiNi 1/2Ti 1/2O 2 and Li[Li 1/3Ti 2/3]O 2 (high temperature form). Charge-discharge tests showed that Li-Ni-Ti-O compounds with appropriate compositions could display a considerable capacity (more than 80 mAh g -1 for 0.2 ≤ z ≤ 0.27) at room temperature in the voltage range of 4.5-2.5 V and good electrochemical properties within respect to capacity (more than 150 mAh g -1 for 0 ≤ z ≤ 0.27), cycleability and rate capability at an elevated temperature of 50 °C. These suggest that the disordered cubic structure in some cases may function as a good host structure for intercalation/deintercalation of Li +. A preliminary electrochemical comparison between Li 1+ z/3Ni 1/2- z/2Ti 1/2+ z/6O 2 (0 ≤ z ≤ 0.5) and Li 6/5Ni 2/5Ti 2/5O 2 indicated that charge-discharge mechanism based on Ni redox at the voltage of >3.0 V behaved somewhat differently, that is, Ni could be reduced to +2 in Li 1+ z/3Ni 1/2- z/2Ti 1/2+ z/6O 2 while +3 in Li 6/5Ni 2/5Ti 2/5O 2. Reduction of Ti 4+ at a plateau of around 2.3 V could be clearly detected in Li 1+ z/3Ni 1/2- z/2Ti 1/2+ z/6O 2 with 0.27 ≤ z ≤ 0.5 at 50 °C after a deep charge associated with charge compensation from oxygen ion during initial cycle.

  5. Studies on the thermal decomposition kinetics of LiPF 6 and LiBC 4 ...

    Indian Academy of Sciences (India)

    Author Affiliations. Li Shi-You1 2 Ma Pei-Hua1 Cui Xiao-Ling1 Ren Qi-Du1 2 Li Fa-Qiang1. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810 008, China; Graduate School of the Chinese Academy of Sciences, Beijing 100 039, China ...

  6. Investigation of the $^{9}$Li + $^{2}$H $\\to ^{8}$Li + t reaction at REX-ISOLDE

    CERN Document Server

    Jeppesen, H B; Nilsson, T; Ames, F

    2006-01-01

    The one-neutron transfer reaction has been investigated in an inverse kinematics experiment by bombarding a deuterated polypropylene target with a 2.36 MeV/u $^{9}$Li beam from the post-accelerator REX-ISOLDE at CERN. Excitation energies in $^{8}$Li as well as angular distributions of the tritons were obtained and spectroscopic factors deduced.

  7. Reaction mechanism study of 7Li(7Li,6He) reaction at above ...

    Indian Academy of Sciences (India)

    7Li + 7Li reaction at two energies, Elab = 20 and 25 MeV. FRDWBA calculations have been performed to explain the measured 6He data. The calculations were very sensitive to the choice of the optical model potentials in entrance and exit channels. The one-step proton transfer was found to be the dominant reaction ...

  8. Cycle-life improvement of Li/LiCoO{sub 2} batteries

    Energy Technology Data Exchange (ETDEWEB)

    Rabou, L.P.L.M. [Netherlands Energy Research Foundation ECN, Petten (Netherlands); Roskam, A. [Netherlands Energy Research Foundation ECN, Petten (Netherlands)

    1995-04-01

    The inherently good electronic conductivity and high lithium mobility of Li{sub x}CoO{sub 2} make it a prime candidate cathode material for high-power rechargeable lithium batteries. We have studied the ageing of Li/LiCoO{sub 2} cells with LiPF{sub 6} in propylene carbonate electrolyte during cycling between fixed voltage limits. The polarization increases with cycle number and the useful capacity decreases by 0.5 to 1% per cycle. Although some of the results seem to reflect a structural change of Li{sub x}CoO{sub 2}, analysis of the data shows that degradation of the electrolyte is a more likely explanation for both the increase in polarization and the apparent structural change. Reduction of the maximum voltage from 4.3 to 4.1 V results in a lower initial capacity, but also in a higher remaining capacity after 100 cycles. (orig.)

  9. Cycle life improvements of Li/LiCO[sub 2] batteries

    Energy Technology Data Exchange (ETDEWEB)

    Rabou, L.P.L.M.; Roskam, A.

    1994-07-01

    The inherently good electronic conductivity and high lithium mobility of LiCoO[sub 2] make it a prime candidate cathode material for high-power rechargeable lithium batteries. We have studied the aging of Li/LiCoO[sub 2] cells with LiPF[sub 6] in propylene carbonate electrolyte during cycling between fixed voltage limits. The polarization increases with cycling and the useful capacity decreases by 0.5 to 1% per cycle. Although some of the results seem to reflect a structural change of LiCoO[sub 2], close analysis shows that degradation of the electrolyte is a more likely explanation for both the increase in polarization and the apparent structural change. Reduction of the maximum voltage from 4.3 V to 4.1 V results in a lower initial capacity, but also in a higher remaining capacity after 100 cycles. 4 figs., 5 refs.

  10. Modeling Li-ion conductivity in LiLa(PO{sub 3}){sub 4} powder

    Energy Technology Data Exchange (ETDEWEB)

    Mounir, Ferhi, E-mail: ferhi.mounir@gmail.com [Laboratoire de Physicochimie des Materiaux Mineraux et leurs Applications, Centre National des Recherches en Sciences des Materiaux, BP No. 73, 8027 Soliman (Tunisia); Karima, Horchani-Naifer [Laboratoire de Physicochimie des Materiaux Mineraux et leurs Applications, Centre National des Recherches en Sciences des Materiaux, BP No. 73, 8027 Soliman (Tunisia); Khaled, Ben Saad [Laboratoire de Photovoltaieque, Centre des Recherches et des Technologies de l' Energie, Technopole Borj Cedria, BP No. 95, 2050 Hammam Lif (Tunisia); Mokhtar, Ferid [Laboratoire de Physicochimie des Materiaux Mineraux et leurs Applications, Centre National des Recherches en Sciences des Materiaux, BP No. 73, 8027 Soliman (Tunisia)

    2012-07-01

    Polycrystalline powder and single-crystal of LiLa(PO{sub 3}){sub 4} are synthesized by solid state reaction and flux technique, respectively. A morphological description of the obtained product was made based on scanning electron microscopy micrographs. The obtained powder was characterized by X-ray powder diffraction, FTIR and Raman spectroscopies. Ionic conductivity of the LiLa(PO{sub 3}){sub 4} powder was measured and evaluated over a temperature range from 553 to 913 K. Single crystals of LiLa(PO{sub 3}){sub 4} are characterized by single-crystal X-ray diffraction. The LiLa(PO{sub 3}){sub 4} structure was found to be isotypic with LiNd(PO{sub 3}){sub 4}. It crystallizes in the monoclinic system with space group C2/c and cell parameters: a=16.635(6) A, b=7.130(3) A, c=9.913(3) A, {beta}=126.37(4) Degree-Sign , V=946.72(6) A{sup 3} and Z=4. The LiLa(PO{sub 3}){sub 4} structure was described as an alternation between spiraling chains (PO{sub 3}){sub n} and (La{sup 3+}, Li{sup +}) cations along the b direction. The small Li{sup +} ions, coordinated to four oxygen atoms, were located in the large connected cavities created between the LaO{sub 8} polyhedra and the polyphosphate chains. The jumping of Li{sup +} through tunnels of the crystalline network was investigated using complex impedance spectroscopy. The close value of the activation energies calculated through the analysis of conductivity data and loss spectra indicate that the transport in the investigated system is through hopping mechanism. The correlation between ionic conductivity of LiLa(PO{sub 3}){sub 4} and its crystallographic structure was investigated and the most probably transport pathway model was determined.

  11. Quantitative analysis of Li by PIGE technique

    Science.gov (United States)

    Fonseca, M.; Mateus, R.; Santos, C.; Cruz, J.; Silva, H.; Luis, H.; Martins, L.; Jesus, A. P.

    2017-09-01

    In this work, the cross section of the reactions 7Li(p,pγ)7Li (γ - 478 keV) at the proton energy range 2.0-4.2 MeV was measured. The measurements were carried out at the 3 MV Tandem Accelerator at the CTN/IST Laboratory in Lisbon. To validate the obtained results, calculated gamma-ray yields were compared, at several proton energy values, with experimental yields for thick samples made of inorganic compounds containing lithium. In order to quantify the light elements present in the samples, we used a standard free method for PIGE in thick samples, based on a code - Emitted Radiation Yield Analysis (ERYA), which integrates the nuclear reaction excitation function along the depth of the sample. We also demonstrated the capacity of the technique for analysis of Li ores, as Spodumene, Lithium Muscovite and Holmquistite, and Li-alloys for plasma facing materials showing that this is a reliable and accurate method for PIGE analysis of Li in thick samples.

  12. Theory of laser enhancement and suppression of cold reactions: the fermion-boson 6Li+7Li2(variant Planck's over 2pi omega0) 6Li7Li+7Li radiative collision.

    Science.gov (United States)

    Li, Xuan; Parker, Gregory A; Brumer, Paul; Thanopulos, Ioannis; Shapiro, Moshe

    2008-03-28

    We present a nonperturbative time-dependent quantum mechanical theory of the laser catalysis and control of a bifurcating A+BC(variant Planck's over 2pi omega(0))ABC*(v)(variant Planck's over 2pi omega(0) )AB+C reaction, with ABC*(v) denoting an intermediate, electronically excited, complex of ABC in the vth vibrational state. We apply this theory to the low collision energy fermion-boson light-induced exchange reaction, (6)Li((2)S)+(7)Li(2)((3)Sigma(u)(+))(variant Planck's over 2pi omega(0))((6)Li(7)Li(7)Li)*(variant Planck's over 2pi omega(0))(6)Li(7)Li((3)Sigma(+))+(7)Li((2)S). We show that at very low collision energies and energetically narrow (approximately 0.01 cm(-1)) initial reactant wave packets, it is possible to tune the yield of the exchange reaction from 0 to near-unity (yield >or=99%) values. Controllability is somewhat reduced at collisions involving energetically wider (approximately 1 cm(-1)) initial reactant wave packets. At these energetic bandwidths, the radiative reactive control, although still impressive, is limited to the 0%-76% reactive-probabilities range.

  13. Anharmonicity and phase stability of antiperovskite Li3OCl

    Science.gov (United States)

    Chen, Min-Hua; Emly, Alexandra; Van der Ven, Anton

    2015-06-01

    A lattice-dynamics study of the cubic Li3OCl antiperovskite, a candidate solid electrolyte in lithium-ion batteries, reveals the presence of dynamical instabilities with respect to rotations of the Li6O octahedra. Calculated energy landscapes in the subspace of unstable octahedral rotational modes are very shallow with at most a 1 meV per formula unit reduction in energy upon breaking the cubic symmetry. While Li3OCl is not stable relative to decomposition into Li2O and LiCl at 0 K, estimates of the vibrational free energy suggest that Li3OCl antiperovskite should become entropically stabilized above approximately 480 K.

  14. Development of overcharge tolerance in Li/FeS and Li/FeS/sub 2/ cells

    Energy Technology Data Exchange (ETDEWEB)

    Kaun, T.D.; Holifield, T.F.; Nigohosian, M.; Nelson, P.A.

    1988-01-01

    An innovative application of a self-discharge mechanism for molten-electrolyte Li-alloy/FeS/sub x/ cells has led to the development of overcharge-tolerant cells. Conventional Li-alloy/FeS/sub x/ battery cells require an electronic charger/equalizer. Two versions of the cell have been demonstrated: LiAl+10 Mol% Li/sub 5/Al/sub 5/Fe/sub 2//LiCl-LiBr-KBr (BN, MgO)/FeS/sub 2/ (operated at 400/degree/C) and LiAl+10 mol% Li/sub 5/Fe/sub 2//LiF-LiCl-LiBr(MgO)/FeS (operated at 475/degree/C). These cells exhibit a unique combination of overcharge capacity and extended trickle-charge tolerance at 2--5 mA/cm/sup 2/. The basis for the self-discharge is diffusion of reduced lithium species across the separator by a lithium-shuttle mechanism that is controlled by the Li-activity of the Li-alloy electrode. A bimodal self-discharge rate (a 20-fold increase toward the end of charge) results from a 150--250 mV step increase in Li-activity. Cells having overcharge tolerance have operated with stable performance for greater than 200 cycles. The overcharge tolerance rates are sufficient for battery cells to exhibit built-in charge/equalization capability. 11 refs., 6 figs.

  15. Comparative study of imide-based Li salts as electrolyte additives for Li-ion batteries

    Science.gov (United States)

    Sharova, Varvara; Moretti, Arianna; Diemant, Thomas; Varzi, Alberto; Behm, R. Jürgen; Passerini, Stefano

    2018-01-01

    Herein, we report the results of a detailed study on the use of different Li imide salts (LiTFSI, LiFSI, and LiFTFSI) as electrolyte additives for lithium-ion batteries. The introduction of lithium imide salts in the electrolyte is shown to considerably improve the first cycle coulombic efficiency and the long-term cycling stability of graphite/LiFePO4 cells. Using LiTFSI, a capacity fading of only ∼2% occurred over 600 cycles while the control cell with the state-of-the-art additive (VC) lost ∼20% of the initial capacity at 20 °C. The results of the XPS and impedance spectroscopy measurements of graphite electrodes show that, after the formation cycle, the SEI obtained in the presence of imide salts is thinner, contains more LiF and is less resistive than that obtained using VC. Despite the beneficial effect of the imide salts on the lithium-ion cell performance, a slightly reduced thermal stability of the SEI is observed.

  16. Preparation and Characterisation of LiFePO4/CNT Material for Li-Ion Batteries

    Directory of Open Access Journals (Sweden)

    Rushanah Mohamed

    2011-01-01

    Full Text Available Li-ion battery cathode materials were synthesised via a mechanical activation and thermal treatment process and systematically studied. LiFePO4/CNT composite cathode materials were successfully prepared from LiFePO4 material. The synthesis technique involved growth of carbon nanotubes onto the LiFePO4 using a novel spray pyrolysis-modified CVD technique. The technique yielded LiFePO4/CNT composite cathode material displaying good electrochemical activity. The composite cathode exhibited excellent electrochemical performances with 163 mAh/g discharge capacity with 94% cycle efficiency at a 0.1 C discharge rate in the first cycle, with a capacity fade of approximately 10% after 30 cycles. The results indicate that carbon nanotube addition can enable LiFePO4 to display a higher discharge capacity at a fast rate with high efficiency. The research is of potential interest for the application of carbon nanotubes as a new conducting additive in cathode preparation and for the development of high-power Li-ion batteries for hybrid electric vehicles.

  17. Li14P2O3N6 and Li7PN4: Computational study of two nitrogen rich crystalline LiPON electrolyte materials

    Science.gov (United States)

    Al-Qawasmeh, Ahmad; Holzwarth, N. A. W.

    2017-10-01

    Two lithium oxonitridophosphate materials are computationally examined and found to be promising solid electrolytes for possible use in all solid-state batteries having metallic Li anodes - Li14P2O3N6 and Li7PN4. The first principles simulations are in good agreement with the structural analyses reported in the literature for these materials and the computed total energies indicate that both materials are stable with respect to decomposition into binary and ternary products. The computational results suggest that both materials are likely to form metastable interfaces with Li metal. The simulations also find both materials to have Li ion migration activation energies comparable or smaller than those of related Li ion electrolyte materials. Specifically, for Li7PN4, the experimentally measured activation energy can be explained by the migration of a Li ion vacancy stabilized by a small number of O2- ions substituting for N3- ions. For Li14P2O3N6, the activation energy for Li ion migration has not yet been experimentally measured, but simulations predict it to be smaller than that measured for Li7PN4.

  18. Elastic and inelastic scattering of {sup 6}Li + {sup 18}O versus {sup 7}Li + {sup 18}O and {sup 6}Li + {sup 16}O

    Energy Technology Data Exchange (ETDEWEB)

    Rudchik, Adam T., E-mail: rudchik@kinr.kiev.ua [Institute for Nuclear Research, Ukrainian Academy of Sciences, Prospect Nauki 47, 03680 Kyiv (Ukraine); Kliczewski, Stanislaw [H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31-342 Cracow (Poland); Chercas, Kostyantyn A. [Institute for Nuclear Research, Ukrainian Academy of Sciences, Prospect Nauki 47, 03680 Kyiv (Ukraine); Kemper, Kirby W. [Physics Department, Florida State University, Tallahassee, FL 32306-4350 (United States); Koshchy, Evgeniy I. [Kharkiv National University, pl. Svobody 4, 61077 Kharkiv (Ukraine); Rusek, Krzysztof [National Centre for Nuclear Research, ul. Hoża 69, PL-00-681 Warsaw (Poland); Heavy Ion Laboratory of Warsaw University, ul. L. Pasteura 5A, PL-02-093 Warsaw (Poland); Rudchik, Andryi A.; Mezhevych, Sergyi Yu.; Pirnak, Valeryi M. [Institute for Nuclear Research, Ukrainian Academy of Sciences, Prospect Nauki 47, 03680 Kyiv (Ukraine); Plujko, Volodymyr A. [Taras Shevchenko Kyiv National University, vul. Volodymyrs' ka 64, 01033 Kyiv (Ukraine); Ponkratenko, Oleg A. [Institute for Nuclear Research, Ukrainian Academy of Sciences, Prospect Nauki 47, 03680 Kyiv (Ukraine); Choiński, Jaroslaw [Heavy Ion Laboratory of Warsaw University, ul. L. Pasteura 5A, PL-02-093 Warsaw (Poland); Czech, Bronislaw; Siudak, Regina; Szczurek, Antoni [H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31-342 Cracow (Poland); Stolarz, Anna [Heavy Ion Laboratory of Warsaw University, ul. L. Pasteura 5A, PL-02-093 Warsaw (Poland); Zelinskyi, Ruslan M. [Institute for Nuclear Research, Ukrainian Academy of Sciences, Prospect Nauki 47, 03680 Kyiv (Ukraine)

    2014-02-15

    Inverse kinematics scattering of {sup 18}O on {sup 6}Li at E{sub lab}({sup 18}O) = 114 MeV was measured to obtain elastic and inelastic scattering cross sections. In this way cross sections for excited states in {sup 6}Li and {sup 18}O were determined. The data were analyzed within the optical model and coupled reaction channel method. The {sup 6}Li + {sup 18}O optical potential as well as the {sup 6}Li and {sup 18}O deformation parameters were deduced. Contributions of different nuclear processes to the {sup 6}Li + {sup 18}O elastic and inelastic scattering were explored. The isotopic differences between the {sup 6,7}Li + {sup 18}O and {sup 6}Li + {sup 16,18}O potential parameters were determined.

  19. NASA Goddard’s LiDAR, Hyperspectral and Thermal (G-LiHT Airborne Imager

    Directory of Open Access Journals (Sweden)

    Vuong Ly

    2013-08-01

    Full Text Available The combination of LiDAR and optical remotely sensed data provides unique information about ecosystem structure and function. Here, we describe the development, validation and application of a new airborne system that integrates commercial off the shelf LiDAR hyperspectral and thermal components in a compact, lightweight and portable system. Goddard’s LiDAR, Hyperspectral and Thermal (G-LiHT airborne imager is a unique system that permits simultaneous measurements of vegetation structure, foliar spectra and surface temperatures at very high spatial resolution (~1 m on a wide range of airborne platforms. The complementary nature of LiDAR, optical and thermal data provide an analytical framework for the development of new algorithms to map plant species composition, plant functional types, biodiversity, biomass and carbon stocks, and plant growth. In addition, G-LiHT data enhance our ability to validate data from existing satellite missions and support NASA Earth Science research. G-LiHT’s data processing and distribution system is designed to give scientists open access to both low- and high-level data products (http://gliht.gsfc.nasa.gov, which will stimulate the community development of synergistic data fusion algorithms. G-LiHT has been used to collect more than 6,500 km2 of data for NASA-sponsored studies across a broad range of ecoregions in the USA and Mexico. In this paper, we document G-LiHT design considerations, physical specifications, instrument performance and calibration and acquisition parameters. In addition, we describe the data processing system and higher-level data products that are freely distributed under NASA’s Data and Information policy.

  20. NASA Goddards LiDAR, Hyperspectral and Thermal (G-LiHT) Airborne Imager

    Science.gov (United States)

    Cook, Bruce D.; Corp, Lawrence A.; Nelson, Ross F.; Middleton, Elizabeth M.; Morton, Douglas C.; McCorkel, Joel T.; Masek, Jeffrey G.; Ranson, Kenneth J.; Ly, Vuong; Montesano, Paul M.

    2013-01-01

    The combination of LiDAR and optical remotely sensed data provides unique information about ecosystem structure and function. Here, we describe the development, validation and application of a new airborne system that integrates commercial off the shelf LiDAR hyperspectral and thermal components in a compact, lightweight and portable system. Goddard's LiDAR, Hyperspectral and Thermal (G-LiHT) airborne imager is a unique system that permits simultaneous measurements of vegetation structure, foliar spectra and surface temperatures at very high spatial resolution (approximately 1 m) on a wide range of airborne platforms. The complementary nature of LiDAR, optical and thermal data provide an analytical framework for the development of new algorithms to map plant species composition, plant functional types, biodiversity, biomass and carbon stocks, and plant growth. In addition, G-LiHT data enhance our ability to validate data from existing satellite missions and support NASA Earth Science research. G-LiHT's data processing and distribution system is designed to give scientists open access to both low- and high-level data products (http://gliht.gsfc.nasa.gov), which will stimulate the community development of synergistic data fusion algorithms. G-LiHT has been used to collect more than 6,500 km2 of data for NASA-sponsored studies across a broad range of ecoregions in the USA and Mexico. In this paper, we document G-LiHT design considerations, physical specifications, instrument performance and calibration and acquisition parameters. In addition, we describe the data processing system and higher-level data products that are freely distributed under NASA's Data and Information policy.

  1. Achromatic Cooling Channel with Li Lenses

    Energy Technology Data Exchange (ETDEWEB)

    Balbekov, V. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

    2002-04-29

    A linear cooling channel with Li lenses, solenoids, and 201 MHz RF cavities is considered. A special lattice design is used to minimize chromatic aberrations by suppression of several betatron resonances. Transverse emittance of muon beam decreases from 2 mm to 0.5 mm at the channel of about 110 m length. Longitudinal heating is modest, therefore transmission of the channel is rather high: 96% without decay and 90% with decay. Minimal beam emittance achievable by similar channel estimated as about 0.25 mm at surface field of Li lenses 10 T.

  2. Charge carrier density in Li-intercalated graphene

    KAUST Repository

    Kaloni, Thaneshwor P.

    2012-05-01

    The electronic structures of bulk C 6Li, Li-intercalated free-standing bilayer graphene, and Li-intercalated bilayer and trilayer graphene on SiC(0 0 0 1) are studied using density functional theory. Our estimate of Young\\'s modulus suggests that Li-intercalation increases the intrinsic stiffness. For decreasing Li-C interaction, the Dirac point shifts to the Fermi level and the associated band splitting vanishes. For Li-intercalated bilayer graphene on SiC(0 0 0 1) the splitting at the Dirac point is tiny. It is also very small at the two Dirac points of Li-intercalated trilayer graphene on SiC(0 0 0 1). For all the systems under study, a large enhancement of the charge carrier density is achieved by Li intercalation. © 2012 Elsevier B.V. All rights reserved.

  3. New Li Battery Chemistry for Improved Performance Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Current state-of-the-art Lithium (Li) or Li-ion systems are unable to meet the performance goals of space-rated rechargeable batteries for many NASA's future robotic...

  4. Üliõpilasteater tuli tunnustusega Minskist / Raimu Hanson

    Index Scriptorium Estoniae

    Hanson, Raimu, 1957-

    2008-01-01

    Tartu Üliõpilasteater osales Kalev Kudu lavastusega "4.48. Psühhoos" Minskis viiendal rahvusvahelisel üliõpilasteatrite festivalil Teatralny Koufar 2008 ja pälvis festivali ühe olulisima preemia - lavastajapreemia

  5. Tallinnasse kogunesid üliõpilasliidrid üle Euroopa

    Index Scriptorium Estoniae

    2011-01-01

    Euroopa Üliõpilasliit korraldas Tallinnas 2.-5. mail konverentsi „Financing of higher education - financing the students future”, kus osalesid 120 üliõpilasesindajat 40-st riigist üle Euroopa

  6. LiDAR data for the Delta Area of California

    Data.gov (United States)

    California Department of Resources — LiDAR data for the Delta Area of California from the California Department of Water Resources. Bare earth grids from LiDAR.This data is in ESRI Grid format with 2...

  7. A New Li Anode Technology for Improved Performance Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Lithium (Li) metal-based rechargeable batteries have many advantages over Li-ion systems including significantly higher energy density, lower cost, and the option of...

  8. New measurement and reevaluation of the nuclear magnetic and quadrupole moments of $^{8}$Li and $^{9}$Li

    CERN Document Server

    Borremans, D; Gheysen, S; Himpe, P; Mallion, S; Neyens, G; Vermeulen, N; Yordanov, D; Blaum, K; Geithner, W; Kowalska, M; Lassen, J; Neugart, R; Lievens, P

    2005-01-01

    The nuclear magnetic moment of $^{9}$Li and the quadrupole moments of $^{8}$Li and $^{9}$Li have been measured using $\\beta$-asymmetry detection of nuclear magnetic resonance ($\\beta$-NMR) on optically polarized beams at ISOLDE/CERN. The radioactive beams were implanted in Si for g factor measurements and in Zn, LiNbO$_{3}$, and LiTaO$_{3}$ crystals for quadrupole moment measurements. The electric field gradient V$_{zz}$ = 4.26(4) $\\times$10$^{15}$ V/cm$^{2}$ is deduced for Li in Zn. Using a recently adopted reference value Q($^{7}$Li) = -40.0(3) mb, we reevaluated all earlier reported nuclear quadrupole moments of $^{8}$Li and $^{9}$Li. Based on all available previous and present data, the adopted quadrupole moments for these isotopes are Q($^{8}$Li) = +31.4(2) mb and Q($^{9}$Li) = - 30.6(2) mb. The magnetic moment of $^{9}$Li is deduced as $\\mu(^{9}$Li) = 3.43678(6)$\\mu\\scriptstyle_\\textrm{N}$ . The values are compared to predictions from shell-model and cluster-model calculations.

  9. Terrain classification using multi-wavelength LiDAR data

    OpenAIRE

    Thomas, Judson J. C.

    2015-01-01

    Approved for public release; distribution is unlimited With the arrival of Optech’s Titan multispectral LiDAR sensor, it is now possible to simultaneously collect three different wavelengths of LiDAR data. Much of the work performed on multispectral LiDAR data involves gridding the point cloud to create Digital Elevation Models and multispectral image cubes. Gridding and raster analysis can have negative implications with respect to LiDAR data integrity and resolution. Presented here is a ...

  10. LiDAR utility for natural resource managers

    Science.gov (United States)

    Andrew Thomas Hudak; Jeffrey Scott Evans; Alistair Mattthew Stuart. Smith

    2009-01-01

    Applications of LiDAR remote sensing are exploding, while moving from the research to the operational realm. Increasingly, natural resource managers are recognizing the tremendous utility of LiDAR-derived information to make improved decisions. This review provides a cross-section of studies, many recent, that demonstrate the relevance of LiDAR across a suite of...

  11. Grozit li Estonii energetitsheskii krizis? / Jevgenija Garanzha

    Index Scriptorium Estoniae

    Garanža, Jevgenija, 1979-

    2006-01-01

    Euroopani ulatunud Venemaa gaasitüli Ukraina ja Gruusiaga paneb mõtlema ka Eesti energeetilise julgeoleku üle. Euroopa Liidus kuulub Eesti imporditavatest energiakandjatest kõige vähem sõltuvate riikide hulka. Diagramm: Eesti põhilised energeetilised ressursid

  12. Review on Li-Fi Technology

    Science.gov (United States)

    Chaudhuri, Rajarshi Roy; Dutta, Kaustav; Saha, Archisman

    With advent of various communication technologies one can access the whole world at one go. The impact of internet on our day to day life has been so extensive that it is impossible to think of a day without it. It has become a fundamental requirement in our daily lives. Survey reports show that nearly 46 % of homes throughout the world have access to the internet. And the percentage is growing each day. With such a high demand there has been a looming Radio Frequency spectrum crisis, which paved the way of the invention of a new technology:-LI-FI. LI-FI, acronym of light fidelity, is a new wireless technology which has the ability to provide high speed internet connection within localized environment. Till today we are familiar with WI-FI which uses radio spectrum for communication. Even though it gives a speed of nearly 150 Mbps (as per IEEE802.11n), it isn't sufficient to satisfy all users. On the other hand LI-FI uses spectrum which comprises a wide range of frequencies, from the infrared through visible, down to the ultraviolet spectrum for communication which has the ability to produce a theoretical speed of 10 Gbps. It is not only confined to light-emitting diode (LED) or laser technology or to any specific receiving technique, LI-FI is a framework for all those technologies which provides new ways to all present as well as future services or applications.

  13. doped LiMgPO4 phosphor

    Indian Academy of Sciences (India)

    Optically stimulated luminescence (OSL) is a well- established technique in personal and medical dosimetry, ... first suggested for personal dosimetry in 1950s. Further, it was spurred by introduction of a method .... product in sample. The LiMgPO4 phosphor was orthorhombic, with the space group Pnma with a about twice.

  14. 6Li foil thermal neutron detector

    Energy Technology Data Exchange (ETDEWEB)

    Ianakiev, Kiril D [Los Alamos National Laboratory; Swinhoe, Martyn T [Los Alamos National Laboratory; Favalli, Andrea [Los Alamos National Laboratory; Chung, Kiwhan [Los Alamos National Laboratory; Macarthur, Duncan W [Los Alamos National Laboratory

    2010-01-01

    In this paper we report on the design of a multilayer thermal neutron detector based on {sup 6}Li reactive foil and thin film plastic scintillators. The {sup 6}Li foils have about twice the intrinsic efficiency of {sup 10}B films and about four times higher light output due to a unique combination of high energy of reaction particles, low self absorption, and low ionization density of tritons. The design configuration provides for double sided readout of the lithium foil resulting in a doubling of the efficiency relative to a classical reactive film detector and generating a pulse height distribution with a valley between neutron and gamma signals similar to {sup 3}He tubes. The tens of microns thickness of plastic scintillator limits the energy deposited by gamma rays, which provides the necessary neutron/gamma discrimination. We used MCNPX to model a multilayer Li foil detector design and compared it with the standard HLNCC-II (18 {sup 3}He tubes operated at 4 atm). The preliminary results of the {sup 6}Li configuration show higher efficiency and one third of the die-away time. These properties, combined with the very short dead time of the plastic scintillator, offer the potential of a very high performance detector.

  15. Raman spectroscopic study of LiHPO

    Science.gov (United States)

    Lee, Kwang-Sei; Ko, Jae-Hyeon; Moon, Joonhee; Lee, Sookyoung; Jeon, Minhyon

    2008-03-01

    The dielectric constant of polycrystalline LiH 2PO 4 has been measured between 297 and 17 K. No marked changes were observed over this range, indicating that the room-temperature orthorhombic phase persisted up to 17 K. Raman spectra of polycrystalline LiH 2PO 4 were also measured at 297, 200, and 70 K in the frequency shift region of 15-4000 cm -1 with Raman-active vibrational modes naively assigned to low-frequency (0-300 cm -1) external and high-frequency (300-4000 cm -1) internal modes. In addition to the internal modes of the PO 4 tetrahedra, the internal modes of the LiO 4 tetrahedra spectroscopically manifested themselves between 390-500 cm -1. This frequency range overlaps those of ν2 (PO 4) and ν4 (PO 4). The LiH 2PO 4O-H vibrational frequencies were in good agreement with crystallographic reports that there are two types of hydrogen bonds: intermediate (long bonds) and strong (short bonds).

  16. Orienteerumiskaart vs. LiDAR / Marek Karm

    Index Scriptorium Estoniae

    Karm, Marek

    2012-01-01

    Bakalaureusetööst, mille eesmärk oli võrrelda orienteerumiskaardi reljeefi LiDAR-i andmete põhjal saadava reljeefimudeliga ning leida vastus küsimusele, kas o-kaart võib olla kasulik kooste- või kontrollmaterjal mistahes reljeefimudelile

  17. High-throughput screening of high-capacity electrodes for hybrid Li-ion-Li-O₂ cells.

    Science.gov (United States)

    Kirklin, S; Chan, M K Y; Trahey, L; Thackeray, M M; Wolverton, C

    2014-10-28

    Recent experiments have shown that lithium and oxygen can be electrochemically removed from Li5FeO4 (5Li2O·Fe2O3) and re-accommodated during discharge, creating the possibility of its use as a high-capacity electrode in a hybrid Li-ion/Li-O2 electrochemical cell. Taking this novel chemistry as a model, we use density functional theory (DFT) within a high-throughput framework to screen for analogous reactions in other materials. We search for candidate materials possessing high capacity, voltages compatible with existing electrolytes, and reasonable electrical conductivity. We identify several promising candidate materials that may operate by a similar reaction mechanism and are worthy of investigation, such as Li6MnO4, Li6CoO4, Li4MoO5 and Li8IrO6. This work paves the way for accelerated exploration of this intriguing new battery chemistry.

  18. 2014 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Cedar River Watershed (Delivery 1)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In September 2013, WSI, a Quantum Spatial company (QSI), was contracted by the Puget Sound LiDAR Consortium (PSLC) to collect Light Detection and Ranging (LiDAR)...

  19. 2012 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Quinault River Watershed, Washington (Delivery 1)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data on the Quinault watershed survey area for the Puget Sound LiDAR Consortium. This...

  20. 2014 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Cedar River Watershed (Delivery 2)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In September 2013, WSI, a Quantum Spatial company (QSI), was contracted by the Puget Sound LiDAR Consortium (PSLC) to collect Light Detection and Ranging (LiDAR)...

  1. 2012 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Hoh River Watershed, Washington (Delivery 1)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data on the Hoh River watershed survey area for the Puget Sound LiDAR Consortium and the...

  2. 2011 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Rattlesnake

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data on six days between September 15th and November 5th, and from November 6th - 13th,...

  3. 2005 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: North Puget Sound Lowlands

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Terrapoint collected Light Detection and Ranging (LiDAR) data contributing to the Puget Sound Lowlands project of 2005. Arlington, City of Snohomish, Snohomish...

  4. 2005 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Yakima County

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Terrapoint collected Light Detection and Ranging (LiDAR) data to complete the 2005 project for Yakima County. This project has partial coverage of Yakima County,...

  5. 2003 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Snohomish County, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract. The area surveyed is approximately 167 square miles and covers a...

  6. Composite Li metal anode with vertical graphene host for high performance Li-S batteries

    Science.gov (United States)

    Zhang, Y. J.; Liu, S. F.; Wang, X. L.; Zhong, Y.; Xia, X. H.; Wu, J. B.; Tu, J. P.

    2018-01-01

    Efficient and stable operation of a lithium metal anode has become the enabling factor for next-generation high energy density storage system. Here, vertical graphene (VG) arrays are used as the scaffold structure for high performance Li metal batteries. The melt infusion method is employed to encapsulate Li inside the VG scaffold structure, and the lithiophilic Si layer is coated onto the array surface by magnetron sputtering to assist this melt-infusion process. The porous scaffold structure can control the volume expansion and inhibit the formation of dendritic lithium significantly, leading to the excellent electrochemical performance of the Li composite anode. In addition, the Li-S full batteries with the composite anode display enhanced cycling reversibility.

  7. 2005 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Lewis County

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Terrapoint collected Light Detection and Ranging (LiDAR) data for the Lewis County project of 2005. The project site covered approximately 223 square miles, divided...

  8. 2007 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Sumpter, OR

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data for the USDA Forest Service on September 17, 2007. The project covers an 8-mile...

  9. 2011 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Rattlesnake

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data on six days between September 15th and November 5th, and from November 6th ? 13th,...

  10. 2009 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Snohomish River Estuary

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WS) co-acquired Light Detection and Ranging (LiDAR) data and Truecolor Orthophotographs of the Snohomish River Estuary, WA on July 20 &...

  11. 2005 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Olympic Peninsula

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Terrapoint collected Light Detection and Ranging (LiDAR) data for the Olympic Peninsula project of 2005, totaling approximately 114.59 sq mi: 24.5 for Clallam...

  12. 2000 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Kitsap Peninsula, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract. The area surveyed is approximately 1,146 square miles and covers part...

  13. 2003 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Yakima County, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract. The area surveyed is approximately 77 square miles and covers a...

  14. 2003 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Lewis County, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract. The area surveyed is approximately 100 square miles and covers part of...

  15. 2012 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Upper Naches River, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data of the Upper Naches River Valley and Nile Slide area of interest on September 30th,...

  16. Lamb shifts and hyperfine structure in 6Li+ and 7Li+: Theory and experiment

    DEFF Research Database (Denmark)

    Riis, E.; Sinclair, A. G.; Poulsen, Ove

    1994-01-01

    High-precision laser-resonance measurements accurate to +/-0.5 MHz, or better are reported for transitions among the 1s2s S-3(1)-1s2p P-3(J) hyperfine manifolds for each of J = 0, 1, and 2 in both Li-6(+) and Li-7(+). A detailed analysis of hyperfine structure is performed for both the S and P st...

  17. Synthesis Of Fe Doped LiMn2O4 Cathode Materials For Li Battery By Solid State Reaction

    Directory of Open Access Journals (Sweden)

    Horata N.

    2015-06-01

    Full Text Available LiFe0.1Mn1.9O4 is expected as a cathode material for the rechargeable lithium-ion batteries. LiMn2O4 has been received attention because this has advantages such as low cost and low toxicity compared with other cathode materials of LiCoO2 and LiNiO2. However, LiMn2O4 has some problems such as small capacity and no long life. LiMn2O4 is phase transformation at around human life temperature. One of the methods to overcome this problem is to stabilize the spinel structure by substituting Mn site ion in LiMn2O4 with transition metals (Al, Mg, Ti, Ni, Fe, etc.. LiFe0.1Mn1.9O4 spinel was synthesized from Li2CO3, Fe2O3 and MnO2 powder. The purpose of this study is to report the optimal condition of Fe doped LiFe0.1Mn1.9O4. Li2CO3, Fe2O3, and MnO2 mixture powder was heated up to 1173 K by TG-DTA. Li2CO3 was thermal decomposed, and CO2 gas evolved, and formed Li2O at about 800 K. LiFe0.1Mn1.9O4 was synthesized from a consecutive reaction Li2O, Fe2O3 and MnO2 at 723 ~ 1023 K. Active energy is calculated to 178 kJmol−1 at 723 ~ 1023 K. The X-ray powder diffraction pattern of the LiFe0.1Mn1.9O4 heated mixture powder at 1023 K for 32 h in air flow was observed.

  18. Thermal Stability of Li-Ion Cells

    Energy Technology Data Exchange (ETDEWEB)

    ROTH,EMANUEL P.

    1999-09-17

    The thermal stability of Li-ion cells with intercalating carbon anodes and metal oxide cathodes was measured as a function of state of charge and temperature for two advanced cell chemistries. Cells of the 18650 design with Li{sub x}CoO{sub 2} cathodes (commercial SONY cells) and Li{sub x}Ni{sub 0.8}Co{sub 0.2}O{sub 2} cathodes were measured for thermal reactivity in the open circuit cell condition. Accelerating rate calorimetry (ARC) was used to measure cell thermal runaway as a function of state of charge (SOC). Microcalorimetry was used to measure the time dependence of heat generating side reactions also as a function of SOC. Components of cells were measured using differential scanning calorimetry (DSC) to study the thermal reactivity of the individual electrodes to determine the temperature regimes and conditions of the major thermal reactions. Thermal decomposition of the SEI layer at the anodes was identified as the initiating source for thermal runaway. The cells with Li{sub x}CoO{sub 2} cathodes showed greater sensitivity to SOC and higher accelerating heating rates than seen for the cells with Li{sub x}Ni{sub 0.8}Co{sub 0.2}O{sub 2}cathodes. Lower temperature reactions starting as low as 40 C were also observed that were SOC dependent but not accelerating. These reactions were also measured in the microcalorimeter and observed to decay over time with a power-law dependence and are believed to result in irreversible capacity loss in the cells.

  19. Direct Georeferencing of Stationary LiDAR

    Directory of Open Access Journals (Sweden)

    Ahmed Mohamed

    2009-12-01

    Full Text Available Unlike mobile survey systems, stationary survey systems are given very little direct georeferencing attention. Direct Georeferencing is currently being used in several mobile applications, especially in terrestrial and airborne LiDAR systems. Georeferencing of stationary terrestrial LiDAR scanning data, however, is currently performed indirectly through using control points in the scanning site. The indirect georeferencing procedure is often troublesome; the availability of control stations within the scanning range is not always possible. Also, field procedure can be laborious and involve extra equipment and target setups. In addition, the conventional method allows for possible human error due to target information bookkeeping. Additionally, the accuracy of this procedure varies according to the quality of the control used. By adding a dual GPS antenna apparatus to the scanner setup, thereby supplanting the use of multiple ground control points scattered throughout the scanning site, we mitigate not only the problems associated with indirect georeferencing but also induce a more efficient set up procedure while maintaining sufficient precision. In this paper, we describe a new method for determining the 3D absolute orientation of LiDAR point cloud using GPS measurements from two antennae firmly mounted on the optical head of a stationary LiDAR system. In this paper, the general case is derived where the orientation angles are not small; this case completes the theory of stationary LiDAR direct georeferencing. Simulation and real world field experimentation of the prototype implementation suggest a precision of about 0.05 degrees (~1 milli-radian for the three orientation angles.

  20. Capturing and Processing Soil GHG Fluxes Using the LI-COR LI-8100A

    Science.gov (United States)

    Xu, Liukang; McDermitt, Dayle; Hupp, Jason; Johnson, Mark; Madsen, Rod

    2015-04-01

    The LI-COR LI-8100A Automated Soil CO2 Flux System is designed to measure soil CO2 efflux using automated chambers and a non-steady state measurement protocol. While CO2 is an important gas in many contexts, it is not the only gas of interest for many research applications. With some simple plumbing modifications, many third party analyzers capable of measuring other trace gases, e.g. N2O, CH4, or 13CO2 etc., can be interfaced with the LI-8100A System, and LI-COR's data processing software (SoilFluxPro™) can be used to compute fluxes for these additional gases. In this paper we describe considerations for selecting an appropriate third party analyzer to interface with the system, how to integrate data into the system, and the procedure used to compute fluxes of additional gases in SoilFluxPro™. A case study is presented to demonstrate methane flux measurements using an Ultra-Portable Greenhouse Gas Analyzer (Ultra-Portable GGA, model 915-0011), manufactured by Los Gatos Research and integrated into the LI-8100A System. Laboratory and field test results show that the soil CO2 efflux based on the time series of CO2 data measured either with the LI-8100A System or with the Ultra-Portable GGA are essentially the same. This suggests that soil GHG fluxes measured with both systems are reliable.

  1. In-house fabrication and testing capabilities for Li and Li-ion 18650 cells

    Science.gov (United States)

    Nagasubramanian, G.

    2010-04-01

    For over 10 years Sandia Labs have been involved in an US DOE-funded program aimed at developing electric vehicle batteries for transportation applications. Currently this program is called "Advanced Battery Research (ABR)." In this effort we were preparing 18650 cells with electrodes supplied by or purchased from private companies for thermal abuse and electrical characterization studies. Lately, we are coating our own electrodes, building cells and evaluating performance. This paper describes our extensive in-house facilities for slurry making, electrode coating, cell winding etc. In addition, facilities for electrical testing and thermal abuse will be described. This facility allows us to readjust our focus quickly to the changing demands of the still evolving ABR program. Additionally, we continue to make cells for our internal use. We made several 18650 cells both primary (Li-CFx) and secondary (Li-ion) and evaluated performance. For example Li-CFx cells gave ~2.9Ahr capacity at room temperature. Our high voltage Li-ion cells consisting of carbon anode and cathode based on LiNi 0.4Mn 0.3Co 0.3O2 in organic electrolytes exhibited reproducible behavior and gave capacity on the order of 1Ahr. Performance of Li-ion cells at different temperatures and thermal abuse characteristics will be presented.

  2. Dynamical properties and temperature induced molecular disordering of LiBH4 and LiBD4

    NARCIS (Netherlands)

    Buchter, F.; Lodziana, Z.; Mauron, P.; Remhof, A.; Friedrichs, O.; Borgschulte, A.; Zuttel, A.; Sheptyakov, D.; Strassle, T.; Ramirez-Cuesta, A. J.

    2008-01-01

    We report on neutron powder-diffraction experiments, inelastic incoherent neutron-scattering experiments, and density-functional calculations on dynamics, order and disorder properties of LiBH4 and LiBD4. From refinement of LiBD4 structure at 10 and 302 K, we found an almost ideal tetrahedral

  3. An Independent Asteroseismic Analysis of the Fundamental Parameters and Internal Structure of the Solar-like Oscillator KIC 6225718

    Science.gov (United States)

    Wu, Tao; Li, Yan

    2017-09-01

    Asteroseismology is a useful tool that is usually used to probe stellar interiors and to determine stellar fundamental parameters, such as stellar mass, radius, and surface gravity. In order to probe stellar interiors, making comparisons between observations and models is usually used with the {χ }2-minimization method. The work of Wu & Li reported that the best parameter determined by the {χ }2-matching process is the acoustic radius for pure p-mode oscillations. In the present work, based on the theoretical calculations of Wu & Li, we will independently analyze the seismic observations of KIC 6225718 to determine its fundamental parameters and to investigate its interior properties. First, in order to test the method, we use it in the Sun to determine its fundamental parameters and to investigate interiors. Second, we independently determine the fundamental parameters of KIC 6225718 without any other non-seismic constraint. Therefore, those determined fundamental parameters are independent of those determined by other methods. They can be regarded as independent references in other analyses. Finally, we analyze the stellar internal structure and find that KIC 6225718 has a convective core with the size of 0.078-0.092 {R}⊙ . Its overshooting parameter {f}{ov} in the core is around 0.010. In addition, its center hydrogen {X}{{c}} is about 0.264-0.355.

  4. Retraction statement: Investigating factors associated with nurses' attitudes towards perinatal bereavement care: a study in Shandong and Hong Kong.

    Science.gov (United States)

    2015-09-01

    The above article from Journal of Clinical Nursing, 'Investigating factors associated with nurses' attitudes towards perinatal bereavement care: a study in Shandong and Hong Kong' by Chan, M. F., Lou, F.-l., Cao, F.-l., Li, P., Liu, L. and Wu, L. H. published online on 6 July 2009 in Wiley Online Library (wileyonlinelibrary.com) and in Volume 18, pp. 2344-2354, has been retracted by agreement between the authors, the journal Editor in Chief and John Wiley & Sons Ltd. The retraction has been agreed following an investigation carried out by the National University of Singapore due to major overlap with a previously published article: Chan MF, Lou F-l, Arthur DG, Cao F-l, Wu LH, Li P, Sagara-Rosemeyer M, Chung LYF & Lui L (2008) Investigating factors associate to nurses' attitudes towards perinatal bereavement care. Journal of Clinical Nursing 17: 509-518. doi: 10.1111/j.1365-2702.2007.02007.x. © 2015 John Wiley & Sons Ltd.

  5. An investigation into the effects of different warm-up modalities on specific motor skills related to soccer performance.

    Science.gov (United States)

    Fletcher, Iain M; Monte-Colombo, Mathew M

    2010-08-01

    The aim of this study was to investigate the effect of different warm-up stretch modalities on specific high-speed motor capabilities important to soccer performance. Twenty-seven male soccer players performed 3 warm-up conditions, active warm-up (WU), WU with static stretching (SPS), and WU with dynamic stretching (ADS). Heart rate, countermovement jump, 20-m sprint, and Balsom agility tests were performed after each intervention. Vertical jump heights were significantly greater (p < 0.01) in the WU and ADS conditions compared to those in the SPS trial. The 20-m sprint and agility times showed that the SPS condition was significantly slower (p < 0.01) than the WU and ADS conditions, with the ADS trial being significantly faster (p < 0.05) than the WU condition. Heart rate was significantly higher (p < 0.01) for participants post-WU and -ADS trials compared to the SPS condition. These findings suggest that the superior performance of the dynamic stretch and warm-up-only conditions compared to the static stretch condition may be linked to increases in heart rate. The reasons for the dynamic stretch trial superiority compared to the warm-up condition are less clear and as yet to be established. We recommend for optimal performance, specific dynamic stretches be employed as part of a warm-up, rather than the traditional static stretches.

  6. Ab-initio studies on Li doping, Li-pairs, and complexes between Li and intrinsic defects in ZnO

    Science.gov (United States)

    Vidya, R.; Ravindran, P.; Fjellvâg, H.

    2012-06-01

    First-principles density functional calculations have been performed on Li-doped ZnO using all-electron projector augmented plane wave method. Li was considered at six different interstitial sites (Lii), including anti-bonding and bond-center sites and also in substitutional sites such as at Zn-site (Lizn) and at oxygen site (Lio) in the ZnO matrix. Stability of LiZn over Lii is shown to depend on synthetic condition, viz., LiZn is found to be more stable than Lii under O-rich conditions. Hybrid density functional calculations performed on LiZn indicate that it is a deep acceptor with (0/-) transition taking place at 0.74 eV above valence band maximum. The local vibrational frequencies for Li-dopants are calculated and compared with reported values. In addition, we considered the formation of Li-pair complexes and their role on electronic properties of ZnO. Present study suggests that at extreme oxygen-rich synthesis condition, a pair of acceptor type LiZn-complex is found to be stable over the compensating Lii + LiZn pair. The stability of complexes formed between Li impurities and various intrinsic defects is also investigated and their role on electronic properties of ZnO has been analyzed. We have shown that a complex between LiZn and oxygen vacancy has less formation energy and donor-type character and could compensate the holes generated by Li-doping in ZnO.

  7. Electrochemical behavior of LiV3O8 positive electrode in hybrid Li,Na-ion batteries

    Science.gov (United States)

    Maletti, S.; Sarapulova, A.; Tsirlin, A. A.; Oswald, S.; Fauth, F.; Giebeler, L.; Bramnik, N. N.; Ehrenberg, H.; Mikhailova, D.

    2018-01-01

    Vanadium(V)-containing oxides show superior intercalation properties for alkaline ions, although the performance of the material strongly depends on its surface morphology. In this work, intercalation activity of LiV3O8, prepared by a conventional solid state synthesis, is demonstrated for the first time in non-aqueous Li,Na-ion hybrid batteries with Na as negative electrode, and different Na/Li ratios in the electrolyte. In the pure Na-ion cell, one Na per formula unit of LiV3O8 can be reversibly inserted at room temperature via a two-step process, while further intercalation leads to gradual amorphisation of the material, with a specific capacity of 190 mAhg-1 after 10 cycles in the potential window of 0.8-3.4 V. Hybrid Li,Na-ion batteries feature simultaneous intercalation of Li+ and Na+ cations into LiV3O8, resulting in the formation of a second phase. Depending on the electrolyte composition, this second phase bears structural similarities either to Li0.7Na0.7V3O8 in Na-rich electrolytes, or to Li4V3O8 in Li-rich electrolytes. The chemical diffusion coefficients of Na+ and Li+ in crystalline LiV3O8 are very close, hence explaining the co-intercalation of these cations. As DFT calculations show, once formed, the Li0.7Na0.7V3O8-type structure favors intercalation of Na+, whereas the LiV3O8-type prefers to accommodate Li+ cations.

  8. G-LiHT: Goddard's LiDAR, Hyperspectral and Thermal Airborne Imager

    Science.gov (United States)

    Cook, Bruce; Corp, Lawrence; Nelson, Ross; Morton, Douglas; Ranson, Kenneth J.; Masek, Jeffrey; Middleton, Elizabeth

    2012-01-01

    Scientists at NASA's Goddard Space Flight Center have developed an ultra-portable, low-cost, multi-sensor remote sensing system for studying the form and function of terrestrial ecosystems. G-LiHT integrates two LIDARs, a 905 nanometer single beam profiler and 1550 nm scanner, with a narrowband (1.5 nanometers) VNIR imaging spectrometer and a broadband (8-14 micrometers) thermal imager. The small footprint (approximately 12 centimeters) LIDAR data and approximately 1 meter ground resolution imagery are advantageous for high resolution applications such as the delineation of canopy crowns, characterization of canopy gaps, and the identification of sparse, low-stature vegetation, which is difficult to detect from space-based instruments and large-footprint LiDAR. The hyperspectral and thermal imagery can be used to characterize species composition, variations in biophysical variables (e.g., photosynthetic pigments), surface temperature, and responses to environmental stressors (e.g., heat, moisture loss). Additionally, the combination of LIDAR optical, and thermal data from G-LiHT is being used to assess forest health by sensing differences in foliage density, photosynthetic pigments, and transpiration. Low operating costs (approximately $1 ha) have allowed us to evaluate seasonal differences in LiDAR, passive optical and thermal data, which provides insight into year-round observations from space. Canopy characteristics and tree allometry (e.g., crown height:width, canopy:ground reflectance) derived from G-LiHT data are being used to generate realistic scenes for radiative transfer models, which in turn are being used to improve instrument design and ensure continuity between LiDAR instruments. G-LiHT has been installed and tested in aircraft with fuselage viewports and in a custom wing-mounted pod that allows G-LiHT to be flown on any Cessna 206, a common aircraft in use throughout the world. G-LiHT is currently being used for forest biomass and growth estimation

  9. Synthesis, crystal structure, and TEM analysis of Sr19Li44 and Sr3Li2: a reinvestigation of the Sr-Li phase diagram.

    Science.gov (United States)

    Smetana, Volodymyr; Kienle, Lorenz; Duppel, Viola; Simon, Arndt

    2015-02-02

    Two intermetallic phases in the Sr-Li system have been synthesized and structurally characterized. According to single-crystal X-ray diffraction data, Sr(19)Li(44) and Sr(3)Li(2) crystallize with tetragonal unit cells (Sr(19)Li(44), I-42d, a = 15.9122(7) Å, c = 31.831(2) Å, Z = 4, V = 8059(2) Å(3); Sr(3)Li(2), P42/mnm, a = 9.803(1) Å, c = 8.784(2) Å, Z = 4, V = 844.2(2) Å(3)). The first compound is isostructural with the recently discovered Ba(19)Li(44). Sr in Sr(19)Li(44) can be fully replaced by Ba with no changes to the crystal structure, whereas the substitution of Sr by Ca is only possible within a limited concentration range. Sr(3)Li(2) can be assigned to the Al(2)Zr(3) structure type. The crystal structure determination of Sr(19)Li(44) was complicated by multiple twinning. As an experimental highlight, an electron microscopy investigation of the highly moisture- and electron-beam-sensitive crystals was performed, enabling high-resolution imaging of the defect structure.

  10. Electrochemical and structural effects of in situ Li2O extraction from Li2MnO3 for Li-Ion batteries.

    Science.gov (United States)

    Jacob, Clement; Jian, Jie; Su, Qing; Verkhoturov, Stanislav; Guillemette, Renald; Wang, Haiyan

    2015-02-04

    Li2MnO3 is an attractive cathode material due to its low cost, nontoxicity and potentially high capacity. However, its electrochemical inactivity, its poor electronic conductivity, and uncertainty about its underlying mechanism have limited its development. In this work, an in situ technique for extraction of Li and O during deposition of the thin film cathode is developed to investigate structural and electrochemical effects in a controlled fashion. MnO2 has been observed in samples with severe O and Li deficiency (capacity of 115 mAh g(-1)), while Li2MnO3 cathodes with slight excess of O and Li (capacity of 225 mAh g(-1)) can be synthesized by tuning growth conditions appropriately. Formation of a MnO2 phase, especially in Li and O deficient structures, could be a possible reason for irreversible capacity loss in Li2MnO3 related materials. Further investigation into stoichiometric and microstructure variations enabled by this technique allows rapid investigation of Li2MnO3 as well as other Li-rich composites.

  11. Absorption of water vapour in the falling film of water-(LiBr + LiI + LiNO{sub 3} + LiCl) in a vertical tube at air-cooling thermal conditions

    Energy Technology Data Exchange (ETDEWEB)

    Bourouis, Mahmoud; Valles, Manel; Medrano, Marc; Coronas, Alberto [Centro de Innovacion Tecnologica en Revalorizacion Energetica y Refrigeracion, CREVER, Universitat Rovira i Virgili, Autovia de Salou, s/n, 43006, Tarragona (Spain)

    2005-05-01

    In air-cooled water-LiBr absorption chillers the working conditions in the absorber and condenser are shifted to higher temperatures and concentrations, thereby increasing the risk of crystallisation. To develop this technology, two main problems are to be addressed: the availability of new salt mixtures with wider range of solubility than water-LiBr, and advanced absorber configurations that enable to carry out simultaneously an appropriate absorption process and an effective air-cooling. One way of improving the solubility of LiBr aqueous solutions is to add other salts to create multicomponent salt solutions. The aqueous solution of the quaternary salt system (LiBr + LiI + LiNO{sub 3} + LiCl) presents favourable properties required for air-cooled absorption systems: less corrosive and crystallisation temperature about 35 K lower than that of water-LiBr.This paper presents an experimental study on the absorption of water vapour over a wavy laminar falling film of an aqueous solution of (LiBr + LiI + LiNO{sub 3} + LiCl) on the inner wall of a water-cooled smooth vertical tube. Cooling water temperatures in the range 30-45 C were selected to simulate air-cooling thermal conditions. The results are compared with those obtained in the same experimental set-up with water-LiBr solutions.The control variables for the experimental study were: absorber pressure, solution Reynolds number, solution concentration and cooling water temperature. The parameters considered to assess the absorber performance were: absorber thermal load, mass absorption flux, degree of subcooling of the solution leaving the absorber, and the falling film heat transfer coefficient.The higher solubility of the multicomponent salt solution makes possible the operation of the absorber at higher salt concentration than with the conventional working fluid water-LiBr. The absorption fluxes achieved with water-(LiBr + LiI + LiNO{sub 3} + LiCl) at a concentration of 64.2 wt% are around 60 % higher than

  12. Li interactions with the B40 fullerene and its application in Li-ion batteries: DFT studies

    Science.gov (United States)

    Moradi, Morteza; Bagheri, Zargham; Bodaghi, Ali

    2017-05-01

    The interaction of Li and Li+ with a B40 all-boron fullerene was theoretically investigated at the B3LYP, and Minnesota 2006 levels of theory. It was found that, unexpectedly, the interaction Li+ cation with the electron deficient B40 fullerene is stronger than the Li atom. It indicates that the B40 fullerene does not act as a conventional Lewis acid because of its highly correlated structure. Frontier molecular orbitals, partial density of states, and natural bond orbital analyses were used to discuss this unusual behavior. Our calculations indicate that this behavior makes the B40 fullerene more appropriate for application in the Li-ion batteries as anode material. The calculated cell voltage is about 530 mV. Also, it was found that Hartree Fock (HF) exchange percentage of density functionals has a reverse effect on the adsorption energies of Li and Li+. This energy is increased and decreased, respectively, for Li+ and Li adsorptions by increasing %HF exchange. Finally, a potential energy surface for Li and Li+ penetration into B40 fullerene was predicted.

  13. Data mining of molecular dynamics data reveals Li diffusion characteristics in garnet Li7La3Zr2O12

    Science.gov (United States)

    Chen, Chi; Lu, Ziheng; Ciucci, Francesco

    2017-01-01

    Understanding Li diffusion in solid conductors is essential for the next generation Li batteries. Here we show that density-based clustering of the trajectories computed using molecular dynamics simulations helps elucidate the Li diffusion mechanism within the Li7La3Zr2O12 (LLZO) crystal lattice. This unsupervised learning method recognizes lattice sites, is able to give the site type, and can identify Li hopping events. Results show that, while the cubic LLZO has a much higher hopping rate compared to its tetragonal counterpart, most of the Li hops in the cubic LLZO do not contribute to the diffusivity due to the dominance of back-and-forth type jumps. The hopping analysis and local Li configuration statistics give evidence that Li diffusivity in cubic LLZO is limited by the low vacancy concentration. The hopping statistics also shows uncorrelated Poisson-like diffusion for Li in the cubic LLZO, and correlated diffusion for Li in the tetragonal LLZO in the temporal scale. Further analysis of the spatio-temporal correlation using site-to-site mutual information confirms the weak site dependence of Li diffusion in the cubic LLZO as the origin for the uncorrelated diffusion. This work puts forward a perspective on combining machine learning and information theory to interpret results of molecular dynamics simulations.

  14. Solid State Li-ion Batteries

    Science.gov (United States)

    2013-10-23

    like FeS2 (8, 9), FeS (10), nano-Si (11- 13), Li4Ti5O12 (14-17), graphite (18, 19), Li4.4GexSi1-x (20), α- Fe2O3 (21) and Sn-based glasses like SnO...Br2O3 (22) or SnS-P2S5 (23). FeS2, FeS, L4Ti5O12, α- Fe2O3 , and Sn-based glasses all have average operating voltages that are too high to make them useful...Solid State Ionics, 158, 269 (2003). 19. Y. Seino, K. Takada, B.-C. Kim, L. Zhang, N. Ohta, H. Wada, M. Osada and T. Sasaki, “ Synthesis of

  15. Li, B and N in ancient materials

    Science.gov (United States)

    Fink, D.

    1983-12-01

    The content of B and Li is examined in several ancient and, for comparison, in modern objects for techological and household use (glasses, coins, nails, needles, bells, shells, bones, pitch, minerals). For most samples the B content is proportional to the Li content, the proportionality factor ranging from 1 to 6. The data scatteringroups of examined species are given. It is known that the N content of bones decreases with age due to decomposition of organic materials. This is confirmed, and simultaneously an enrichment of B was observed for ancient bones, probably due to salt transport from the surrounding soil into the bones. Coins frequently show a nitrogen enriched layer on their surfaces due to corrosion. B surface contaminations are sometimes observed for glasses and mother-of-pearl.

  16. Síndrome de Li-Fraumeni

    OpenAIRE

    Carlos Andrés Ossa; Gustavo Molina; Alicia María Cock-Rada

    2016-01-01

    El síndrome de Li-Fraumeni se caracteriza por la aparición de tumores en múltiples órganos, generalmente a temprana edad. Esta condición hereditaria es causada por mutaciones germinales en el gen TP53, que codifica el gen supresor tumoral p53. Se presenta el caso de una paciente de 31 años con diagnóstico clínico y molecular de síndrome de Li-Fraumeni, que presentó dos tumores sincrónicos a los 31 años: un leiomiosarcoma de antebrazo y un tumor filoides de mama. Tenía el antecedente de ...

  17. Dielectric properties of Li doped Li-Nb-O thin films

    Energy Technology Data Exchange (ETDEWEB)

    Perentzis, G.; Horopanitis, E.E.; Papadimitriou, L. [Aristotle University of Thessaloniki, Department of Physics, 54124 Thessaloniki (Greece); Durman, V.; Saly, V.; Packa, J. [Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovicova 3, 81219 Bratislava (Slovakia)

    2007-03-15

    Lithium niobate LiNbO{sub 3} was prepared as a thin film layered structure deposited on stainless steel substrate using e-gun evaporation. The Li doping was provided for by the formation of Li-Nb-O/Li/LiNb-O sandwich structure and annealing at about 250 C. AC impedance spectroscopy measurements were performed on the samples at temperatures from the interval between 28 and 165 C and in a frequency range of 10{sup -3} to 10{sup 6} Hz. Using the values Z' and Z'' at different frequencies, the dielectric parameters - parts of the complex permittivity {epsilon}' and {epsilon}'' and loss tangent tan {delta} were calculated. The results prove validity of the proposed equivalent circuit containing parallel RC elements connected in series where the first RC element represents the bulk of material and the second RC element belongs to the double layer at the metal interface. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  18. Study of Li atom diffusion in amorphous Li3PO4 with neural network potential

    Science.gov (United States)

    Li, Wenwen; Ando, Yasunobu; Minamitani, Emi; Watanabe, Satoshi

    2017-12-01

    To clarify atomic diffusion in amorphous materials, which is important in novel information and energy devices, theoretical methods having both reliability and computational speed are eagerly anticipated. In the present study, we applied neural network (NN) potentials, a recently developed machine learning technique, to the study of atom diffusion in amorphous materials, using Li3PO4 as a benchmark material. The NN potential was used together with the nudged elastic band, kinetic Monte Carlo, and molecular dynamics methods to characterize Li vacancy diffusion behavior in the amorphous Li3PO4 model. By comparing these results with corresponding DFT calculations, we found that the average error of the NN potential is 0.048 eV in calculating energy barriers of diffusion paths, and 0.041 eV in diffusion activation energy. Moreover, the diffusion coefficients obtained from molecular dynamics are always consistent with those from ab initio molecular dynamics simulation, while the computation speed of the NN potential is 3-4 orders of magnitude faster than DFT. Lastly, the structure of amorphous Li3PO4 and the ion transport properties in it were studied with the NN potential using a large supercell model containing more than 1000 atoms. The formation of P2O7 units was observed, which is consistent with the experimental characterization. The Li diffusion activation energy was estimated to be 0.55 eV, which agrees well with the experimental measurements.

  19. The {sup 7}Li (n,{gamma}){sup 8}Li radiative capture at astrophysical energies

    Energy Technology Data Exchange (ETDEWEB)

    Dubovichenko, S.B. [V. G. Fessenkov Astrophysical Institute ' ' NCSRT' ' NSA RK, 050020, Observatory 23, Kamenskoe plato, Almaty (Kazakstan (Kazakhstan)); Institute of Nuclear Physics NNC RK, 050032, str. Ibragimova 1, Almaty (Kazakstan (Kazakhstan)); Dzhazairov-Kakhramanov, A.V. [Institute of Nuclear Physics NNC RK, 050032, str. Ibragimova 1, Almaty (Kazakstan (Kazakhstan))

    2012-12-15

    The possibility to construct intercluster interaction potentials in continuous and discrete spectra is shown in one-channel cluster model based on the classification of orbital states according to Young schemes. These potentials usually contain Pauli forbidden states, and correctly describe elastic scattering phase shifts taking into account resonance behavior and main characteristics of the bound states of nuclei in the considering cluster channel. The versions of intercluster interaction potentials describing the resonance nature of some phase shifts of the n{sup 7}Li elastic scattering at low energies and the P{sub 2} ground state of {sup 8}Li in the n{sup 7}Li cluster channel have been constructed for the demonstration of this approach. The possibility of describing the total cross sections of {sup 7}Li (n,{gamma}){sup 8}Li within the energies from 5 meV (5 . 10{sup -3} eV) to 1 MeV, including resonance at 0.25 MeV, has been demonstrated for the potentials obtained in the potential cluster model with forbidden states. (Copyright copyright 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  20. Thermal and Cycle-Life Behavior of Commercial Li-ion and Li-Polymer Cells

    Science.gov (United States)

    Zimmerman, Albert H.; Quinzio, M. V.

    2001-01-01

    Accelerated and real-time LEO cycle-life test data will be presented for a range of commercial Li-ion and Li-polymer (gel type) cells indicating the ranges of performance that can be obtained, and the performance screening tests that must be done to assure long life. The data show large performance variability between cells, as well as a highly variable degradation signature during non-cycling periods within the life tests. High-resolution Dynamic Calorimetry data will be presented showing the complex series of reactions occurring within these Li cells as they are cycled. Data will also be presented for cells being tested using an Adaptive Charge Control Algorithm (ACCA) that continuously adapts itself to changes in cell performance, operation, or environment to both find and maintain the optimum recharge over life. The ACCA has been used to prevent all unneeded overcharge for Li cells, NiCd cells and NiH2 cells. While this is important for all these cell types, it is most critical for Li-ion cells, which are not designed with electrochemical tolerance for overcharge.

  1. Endurance testing with Li/Na electrolyte

    Energy Technology Data Exchange (ETDEWEB)

    Ong, E.T.; Remick, R.J.; Sishtla, C.I. [Institute of Gas Technology, Des Plaines, IL (United States)

    1996-12-31

    The Institute of Gas Technology (IGT), under subcontract to M-C Power Corporation under DOE funding, has been operating bench-scale fuel cells to investigate the performance and endurance issues of the Li/Na electrolyte because it offers higher ionic conductivity, higher exchange current densities, lower vapor pressures, and lower cathode dissolution rates than the Li/K electrolyte. These cells have continued to show higher performance and lower decay rates than the Li/K cells since the publication of our two previous papers in 1994. In this paper, test results of two long-term 100-cm{sup 2} bench scale cells are discussed. One cell operated continuously at 160 mA/cm{sup 2} for 17,000 hours with reference gases (60H{sub 2}/20CO{sub 2}/20H{sub 2}O fuel at 75% utilization and 30CO{sub 2}/70 air oxidant humidified at room temperature at 50% utilization). The other cell operated at 160 mA/cm{sup 2} for 6900 hours at 3 atm with system gases (64H{sub 2}/16CO{sub 2}/20H{sub 2}O at 75% utilization and an M-C Power system-defined oxidant at 40% utilization). Both cells have shown the highest performance and longest endurance among IGT cells operated to date.

  2. High performance MCFC using Li/Na electrolyte

    Energy Technology Data Exchange (ETDEWEB)

    Donado, R.A.; Ong, E.T.; Sishtla, C.I.

    1995-08-01

    The substitution of a lithium/ sodium carbonate (Li/Na) mixture for the lithium/potassium carbonate (Li/K) electrolyte used in MCFCs holds the promise of higher ionic conductivity, higher exchange current density at both electrodes, lower vapor pressure, and lower cathode dissolution rates. However, when the substitution is made in cells optimized for use with the Li/K electrolyte, the promised increase in performance is not realized. As a consequence the literature contains conflicting data with regard to the performance, compositional stability, and chemical reactivity of the Li/Na electrolyte. Experiments conducted at the Institute of Gas Technology (IGT) concluded that the source of the problem is the different wetting characteristics of the two electrolytes. Electrode pore structures optimized for use with Li/K do not work well with Li/Na. Using proprietary methods and materials, IGT was able to optimize a set of electrodes for the Li/Na electrolyte. Experiments conducted in bench-scale cells have confirmed the superior performance of the Li/Na electrolyte compared to the Li/K electrolyte. The Li/Na cells exhibited a 5 to 8 percent improvement in overall performance, a substantial decrease in the rate of cathode dissolution, and a decreased decay rate. The longest running cell has logged over 13,000 hours of operation with a decay rate of less than 2 mV/1000 hours.

  3. Impact of in-band interference on a wake-up radio system in wireless sensor networks

    Science.gov (United States)

    Lebreton, J. M.; Murad, N. M.; Lorion, R.

    2017-05-01

    The energy efficiency of Wireless Sensor Networks (WSNs) is considerably improved with Wake-up Radio (WuR) systems. However, their resilience to interference is often neglected in the literature. This might be an issue due to the proliferation of wireless devices and the growing field of internet of things. In this paper, we evaluate the impact of in-band interference from wireless devices on a WuR system. The approach proves that WuR systems are still performing well when coexisting with external wireless networks, even if the energy-efficiency is slightly reduced.

  4. An Analysis of Mine Water Inrush Based on Fractal and Non-Darcy Seepage Theory

    Science.gov (United States)

    Wu, Jinsui; Cai, Jianchao; Zhao, Dongyun; Chen, Xuexi

    2014-09-01

    Mining rock mechanics is a new cross subject of mechanics and mining engineering, the seepage theory is one of the important research directions. This paper combines Wu-fractal/Ergun high-speed flow theory and dynamic system instability, reveals the influence factors of mine water inrush. Research shows that: Mine water inrush related to rock porosity, particle size, shape, fractal dimension, ratio of pore and throat, and other factors. Compared the critical Reynolds number which are got from Wu-fractal model and Ergun equation, Wu-fractal model can reveal more influence factors of mine water inrush than Ergun equation.

  5. The Effect of a Winglet on the Spatial Vortex of a Slender Body at High Angle of Attack,

    Science.gov (United States)

    1986-07-07

    OF A SLENDER BODY AT HIGH 0)ANGLE OF ATTACK !,D) toF by ~Wang Zixing, Wu Genxing Approved for public release;L"’J Distribution unlimited. q Ui...ATTACK By: Wang Zixing, Wu Genxing English pages: 12 Source: Konggi Donglixue Xuebao, Vol. 3, Nr. 1, 1985, pp. 49-53 Country of origin: China Translated by...U ~ ~ ’~ IL--c-k. au -ILI . W THE EFFECT OF A WINGLET ON THE SPATIAL VORTEX OF A SLENDER BODY AT HIGH ANGLE OF ATTACK Wang Zixing Wu Genxing

  6. People’s Republic of China Scientific Abstracts No. 179

    Science.gov (United States)

    1977-11-08

    No 2, April 1977 7 CHIH-WU HSUEH-PAO [ACTA BOTANICA SINICA] No 2, June 1977 22 I-CH’UAN HSUEH-PAO [ACTA GENETICA SINICA] No 1...sources with fluorescent dyes and applications in forensic medicine. 10 ATITHOR: WU Min [O702 4t ] ORG: Institute of Oncology...photorespirators. 8650 C50J 4009 29 ACTA GENETICA SINICA AUTHOR: WU An-chiu [0702 1344 0036] ORG: Technique Staff of San-t’ai Commune Fu County

  7. LiCl-LiI molten salt electrolyte with bismuth-lead positive electrode for liquid metal battery

    Science.gov (United States)

    Kim, Junsoo; Shin, Donghyeok; Jung, Youngjae; Hwang, Soo Min; Song, Taeseup; Kim, Youngsik; Paik, Ungyu

    2018-02-01

    Liquid metal batteries (LMBs) are attractive energy storage device for large-scale energy storage system (ESS) due to the simple cell configuration and their high rate capability. The high operation temperature caused by high melting temperature of both the molten salt electrolyte and metal electrodes can induce the critical issues related to the maintenance cost and degradation of electrochemical properties resulting from the thermal corrosion of materials. Here, we report a new chemistry of LiCl-LiI electrolyte and Bi-Pb positive electrode to lower the operation temperature of Li-based LMBs and achieve the long-term stability. The cell (Li|LiCl-LiI|Bi-Pb) is operated at 410 °C by employing the LiCl-LiI (LiCl:LiI = 36:64 mol %) electrolyte and Bi-Pb alloy (Bi:Pb = 55.5:44.5 mol %) positive electrode. The cell shows excellent capacity retention (86.5%) and high Coulombic efficiencies over 99.3% at a high current density of 52 mA cm-2 during 1000th cycles.

  8. A Stable, Magnetic, and Metallic Li3O4 Compound as a Discharge Product in a Li-Air Battery.

    Science.gov (United States)

    Yang, Guochun; Wang, Yanchao; Ma, Yanming

    2014-08-07

    The Li-air battery with the specific energy exceeding that of a Li ion battery has been aimed as the next-generation battery. The improvement of the performance of the Li-air battery needs a full resolution of the actual discharge products. Li2O2 has been long recognized as the main discharge product, with which, however, there are obvious failures on the understanding of various experimental observations (e.g., magnetism, oxygen K-edge spectrum, etc.) on discharge products. There is a possibility of the existence of other Li-O compounds unknown thus far. Here, a hitherto unknown Li3O4 compound as a discharge product of the Li-air battery was predicted through first-principles swarm structure searching calculations. The new compound has a unique structure featuring the mixture of superoxide O2(-) and peroxide O2(2-), the first such example in the Li-O system. The existence of superoxide O2(-) creates magnetism and hole-doped metallicity. Findings of Li3O4 gave rise to direct explanations of the unresolved experimental magnetism, triple peaks of oxygen K-edge spectra, and the Raman peak at 1125 cm(-1) of the discharge products. Our work enables an opportunity for the performance of capacity, charge overpotential, and round-trip efficiency of the Li-air battery.

  9. Spectroscopic information of 6Li from elastic scattering of deuterons, 3He and 4He by 6Li

    Science.gov (United States)

    Amar, A.

    2014-07-01

    The elastic scattering of deuterons, 3He and 4He on 6Li at different incident energies have been analyzed in the framework of the optical model (OM) using ECIS88 as well as SPI GENOA codes. The optical potential parameters were extracted in the phenomenological treatment. A good agreement between theoretical and experimental differential cross-sections was obtained in whole angular range. Parameters for real part of potential have been also calculated microscopically with double-folding model for the d, 3He and 4He scattering, respectively, using DFPOT code. The elastic transfer mechanism has been studied by coupled reaction channel (CRC) method using FRESCO code. Spectroscopic amplitudes of 6Li ≡ t + 3He and 6Li ≡ α + d configurations have been extracted from d, 3He and 4He scattering on 6Li at wide energy range. A comparison between spectroscopic amplitudes obtained from deuteron and α elastically scattering from 6Li has been made. The extracted spectroscopic amplitudes of 6Li ≡ 4He + d(SF = SA2) from 6Li(d, 6Li)d and 6Li(α, 6Li)α are not the same as expected theoretically.

  10. Diffusion of $^{6}$Li in Ta and W

    CERN Document Server

    Vacik, J

    2006-01-01

    The objective of this work was the study of 6Li diffusion in the Ta and W refractory metals. The samples were prepared by ion implantation of 380 keV 6Li+ ions into W and Ta thin foils (up to the fluence of 1016 ions/cm2) and annealed up to the temperature 1940 °C. The depth profiles of 6Li were determined using the Thermal Neutron Depth Profiling (TNDP) technique. The results showed that diffusion of 6Li in both W and Ta foils is very complex and cannot be described by simple Fick’s laws. Trapping centers (in the subsurface layers of both W and Ta metals) were supposed in a trial to explain the 6Li diffusion behaviour. However, the 6Li depth profiles were only partly explained. Other aspects are necessary to take into account for more proper quantification; such as spatially dependent diffusion coefficients, etc.

  11. Üliõpilasteatrid - teistmoodi teater / Kalev Kudu

    Index Scriptorium Estoniae

    Kudu, Kalev, 1961-

    2007-01-01

    Üliõpilasteatrite VI maailmakongressist 21. - 26. juulini Urbinos Itaalias. Autor oma ettekandest teemal "Üliõpilasteater kui mäss. Üliõpilasteatrite eriline missioon globaliseeruvas maailmas". Lühiintervjuu Liege'i ülikooli professori, üliõpilasteatri kunstilise juhi ja Rahvusvahelise Üliõpilasteatrite Liidu (AITU) esimehe Robert Germayga. Etendustest: "Shahrazad - neitsi Bagdadist" (Bologna ülikool, Itaalia"), "Mbomo-mvet" (Yaounde ülikool, Kamerun), "The Believed Dead" (Brescia Katoliiklik Ülikool, Itaalia), "Teenrid" (Teatro Verga, Milano ülikool, Itaalia), "Antigone" (Ateena ülikool, Kreeka), "Tilt!" (Teatro Aenigma, Urbino ülikool, Itaalia), "Paroodia" (Milano ja Urbino ülikoolide üliõpilased), "Erose tiivad" (Saloniki ülikool, Kreeka), "Kolmas laps" (Long Islandi ülikool, USA), "Lee-Oki lugu" (Hoseo ülikool, Lõuna-Korea), "Ülikond" (Vilniuse Tehnikaülikool, Leedu)

  12. Elastic properties of Li+ doped lead zinc borate glasses

    Science.gov (United States)

    Rajaramakrishna, R.; Lakshmikantha, R.; Anavekar, R. V.

    2014-04-01

    Glasses in the system 0.25PbO-(0.25-x) ZnO-0.5B2O3-xLi2O have been prepared by the melt quenching technique. Elastic properties, DSC studies have been employed to study the role of Li2O in the present glass system. Elastic properties and Debye temperature have been determined using pulsed echo ultrasonic interferometer operating at 10MHz. Sound velocities Vl, Vt and elastic moduli decrease up to 5 mol% and then gradually increase with increase in Li2O concentration. Debye temperature and the glass transition temperature decreases with increase in Li2O. Densities remains almost constant up to 15 mol% Li2O concentration and increases monotonically while the molar volume decreases with the increase of Li2O concentration. The results are discussed in view of the borate structural network and dual role of Zn and Pb in these glasses.

  13. Li+-Permeable Film on Lithium Anode for Lithium Sulfur Battery.

    Science.gov (United States)

    Yang, Yan-Bo; Liu, Yun-Xia; Song, Zhiping; Zhou, Yun-Hong; Zhan, Hui

    2017-11-08

    Lithium-sulfur (Li-S) battery is an important candidate for next-generation energy storage. However, the reaction between polysulfide and lithium (Li) anode brings poor cycling stability, low Coulombic efficiency, and Li corrosion. Herein, we report a Li protection technology. Li metal was treated in crown ether containing electrolyte, and thus, treated Li was further used as the anode in Li-S cell. Due to the coordination between Li+ and crown ether, a Li+-permeable film can be formed on Li, and the film is proved to be able to block the detrimental reaction between Li anode and polysulfide. By using the Li anode pretreated in 2 wt % B15C5-containing electrolyte, Li-S cell exhibits significantly improved cycling stability, such as∼900 mAh g-1 after 100 cycles, and high Coulombic efficiency of>93%. In addition, such effect is also notable when high S loading condition is applied.

  14. LiDAR Application for WInd Energy Efficiency : Final report

    NARCIS (Netherlands)

    Boorsma, K; Wagenaar, J.W.; Savenije, F.J.; Boquet, M.; Bierbooms, W.A.A.M.; Giyanani, A.H.; Rutteman, R.

    2016-01-01

    ECN with its partners TU DelŌ, Avent LiDAR Technologies and XEMC Darwind executed the four-year TKI Wind op Zee project LAWINE (LiDAR ApplicaƟon for WInd Energy Efficiency). In this project the applica Ɵon of LiDAR technology has been developed and validated so that it can be used to improve the

  15. Adiabatic and Nonadiabatic Charge Transport in Li-S Batteries

    DEFF Research Database (Denmark)

    Park, Haesun; Kumar, Nitin; Melander, Marko

    2017-01-01

    The insulating nature of the redox end members in Li-S batteries, -S and Li2S, has the potential to limit the capacity and efficiency of this emerging energy storage system. Nevertheless, the mechanisms responsible for ionic and electronic transport in these materials remain a matter of debate...... studies, we conclude that low equilibrium carrier concentrations are responsible for sluggish charge transport in -S and Li2S. Thus, a potential strategy for improving the performance of Li-S batteries is to increase the concentrations of holes in these redox end members....

  16. Nb-based MXenes for Li-ion battery applications

    KAUST Repository

    Zhu, Jiajie

    2015-11-16

    Li-ion batteries depend critically on the stability and capacity of the electrodes. In this respect the recently synthesized two-dimensional MXenes are promising materials, as they combine an excellent Li-ion capacity with very high charging rates. We employ density functional theory to investigate the impact of Li adsorption on the structural and electronic properties of monolayer Nb2C and Nb2CX2. The Li ions are predicted to migrate easily on the pristine MXene due to a diffusion barrier of only 36 meV, whereas larger diffusion barriers are obtained for the functionalized MXenes.

  17. A Low-Li Geochemical Province in the NE Atlantic

    DEFF Research Database (Denmark)

    Bailey, J. C.; Gwozdz, R.

    1978-01-01

    Lithium was analysed in 392 basalts and related igneous rocks from the North Atlantic Tertiary-Recent province using activation analysis and Čerenkov counting. Monotonous Li values of 5.5±2 ppm in NE Atlantic basalts define a low-Li geochemical province which has persisted for 60 million years...... basalt series. No whole-rock coherence is observed between Li and Mg, K, Rb or Ca. Mantle phlogopite is considered to play an insignificant rôle in controlling the Li levels of NE Atlantic basalts....

  18. Electrical conduction of LiF interlayers in organic diodes

    Energy Technology Data Exchange (ETDEWEB)

    Bory, Benjamin F.; Janssen, René A. J.; Meskers, Stefan C. J., E-mail: s.c.j.meskers@tue.nl [Molecular Materials and Nanosystems and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands); Gomes, Henrique L. [Instituto de Telecomunicações, Av. Rovisco, Pais, 1, 1049–001, Lisboa, Portugal and Universidade do Algarve, Campus de Gambelas, 8005-139 Faro (Portugal); Leeuw, Dago M. de [Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany and King Abdulaziz University, Jeddah (Saudi Arabia)

    2015-04-21

    An interlayer of LiF in between a metal and an organic semiconductor is commonly used to improve the electron injection. Here, we investigate the effect of moderate bias voltages on the electrical properties of Al/LiF/poly(spirofluorene)/Ba/Al diodes by systematically varying the thickness of the LiF layer (2-50 nm). Application of forward bias V below the bandgap of LiF (V < E{sub g} ∼ 14 V) results in reversible formation of an electrical double layer at the LiF/poly(spirofluorene) hetero-junction. Electrons are trapped on the poly(spirofluorene) side of the junction, while positively charged defects accumulate in the LiF with number densities as high as 10{sup 25}/m{sup 3}. Optoelectronic measurements confirm the built-up of aggregated, ionized F centres in the LiF as the positive trapped charges. The charged defects result in efficient transport of electrons from the polymer across the LiF, with current densities that are practically independent of the thickness of the LiF layer.

  19. Synthesis of LiAlO{sub 2} and LiGaO{sub 2} by ion exchange reaction

    Energy Technology Data Exchange (ETDEWEB)

    Villafuerte-Castrejon, M.E.; Mondragon, C.; Sanchez-Arjona, A.M. [Universidad Nacional Autonoma de Mexico, Mexico City (Mexico). Inst. de Investigaciones en Materiales; Olguin, M.T.; Bulbulian, S. [Inst. Nacional de Investigaciones Nucleares, Delegacion Miguel Hidalgo, Mexico, D.F. (Mexico); Bosch, P. [Univ. Autonoma Metropolitan-Iztapalapa, Mexico, D.F. (Mexico)

    1997-12-31

    The complex oxides {beta} and {gamma}-NaAlO{sub 2} polymorphs and NaGaO{sub 2} were reacted by the ion exchange route with molten salts (LiCl and LiNO{sub 3}). Kinetics of the reaction were followed by the X-ray powder diffraction and by neutronic activation analysis using a TRIGA MARG III nuclear reactor. The products of the reactions were polymorphs {beta} and {gamma}-LiAlO{sub 2} and LiGaO{sub 2}. {beta}-LiAlO{sub 2} is the high pressure form, obtained by this method at relative low temperature and at atmospheric pressure. LiGAO{sub 2} was obtained after only one minute of reaction in the molten salt. (orig.) 4 refs.

  20. 2004 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Portland, Oregon

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The all returns ASCII files contain the X,Y,Z values of all the LiDAR returns collected during the survey mission. In addition each return also has a time stamp,...

  1. Reaction mechanism study of 7Li (7Li, 6He) reaction at above ...

    Indian Academy of Sciences (India)

    Li reaction at two energies, lab = 20 and 25 MeV. FRDWBA calculations have been performed to explain the measured 6He data. The calculations were very sensitive to the choice of the optical model potentials in entrance and exit channels ...

  2. Structural evolution upon decomposition of the LiAlH{sub 4} + LiBH{sub 4} system

    Energy Technology Data Exchange (ETDEWEB)

    Soru, S.; Taras, A. [Department of Chemistry and Pharmacy, University di Sassari and INSTM, Via Vienna 2, I-07100 Sassari (Italy); Pistidda, C. [Institute of Materials Research, Materials Technology, Helmholtz-Zentrum Geesthacht, Max-Planck, Str. 1, D-21502 Geesthacht (Germany); Milanese, C. [Pavia H2 Lab, C.S.G.I. and Dipartimento di Chimica, Sezione di Chimica Fisica, Università di Pavia, Viale Taramelli 16, I-27100 Pavia (Italy); Bonatto Minella, C. [IFW Dresden, Institute for Metallic Materials, Helmholtzstrasse 20, D-01069 Dresden (Germany); Masolo, E. [Department of Chemistry and Pharmacy, University di Sassari and INSTM, Via Vienna 2, I-07100 Sassari (Italy); Nolis, P. [Servei de Ressonància Magnètica Nuclear and Departament de Química, Universitat Autònoma de Barcelona, E-08193 Bellaterra (Spain); Baró, M.D. [Universitat Autònoma de Barcelona, Departament de Física, E-08193 Bellaterra (Spain); Marini, A. [Pavia H2 Lab, C.S.G.I. and Dipartimento di Chimica, Sezione di Chimica Fisica, Università di Pavia, Viale Taramelli 16, I-27100 Pavia (Italy); Tolkiehn, M. [DESY Synchrotron, Beam Line D3, Hamburg (Germany); Dornheim, M. [Institute of Materials Research, Materials Technology, Helmholtz-Zentrum Geesthacht, Max-Planck, Str. 1, D-21502 Geesthacht (Germany); Enzo, S.; Mulas, G. [Department of Chemistry and Pharmacy, University di Sassari and INSTM, Via Vienna 2, I-07100 Sassari (Italy); Garroni, S., E-mail: sgarroni@uniss.it [Department of Chemistry and Pharmacy, University di Sassari and INSTM, Via Vienna 2, I-07100 Sassari (Italy)

    2014-12-05

    Highlights: • The desorption mechanism of LiBH{sub 4} + LiAlH{sub 4} was studied by in situ SR-PXD • The formation of unidentified intermediate was proved by experimental evidences. • This intermediate is based on Li, B, Al, H atoms. - Abstract: In the present work we focus the attention on the phase structural transformations occurring upon the desorption process of the LiBH{sub 4} + LiAlH{sub 4} system. This study is conducted by means of manometric–calorimetric, in situ Synchrotron Radiation Powder X-ray Diffraction (SR-PXD) and exsitu Solid State Magic Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR) measurements. The desorption reaction is characterized by two main dehydrogenation steps starting at 320 and 380 °C, respectively. The first step corresponds to the decomposition of LiAlH{sub 4} into Al and H{sub 2}via the formation of Li{sub 3}AlH{sub 6} whereas the second one refers to the dehydrogenation of LiBH{sub 4} (molten state). In the range 328–380 °C, the molten LiBH{sub 4} reacts with metallic Al releasing hydrogen and forming an unidentified phase which appears to be an important intermediate for the desorption mechanism of LiBH{sub 4}–Al-based systems. Interestingly, NMR studies indicate that the unknown intermediate is stable up to 400 °C and it is mainly composed of Li, B, Al and H. In addition, the NMR measurements of the annealed powders (400 °C) confirm that the desorption reaction of the LiBH{sub 4} + Al system proceeds via an amorphous boron compound.

  3. Chemical obtaining of LiMO2 and LiM2O4 (M=Co, Mn) oxides, for cathodic applications in Li-ion batteries

    Science.gov (United States)

    Y Neira-Guio, A.; Gómez Cuaspud, J. A.; López, E. Vera; Pineda Triana, Y.

    2017-12-01

    This paper describes the synthesis and characterization of two spinel and olivine-type multicomponent oxides based on LiMO2 and LiM2O4 systems (M=Co and Mn), which represent the current state of the art in the development of cathodes for Li-ion batteries. A simple combustion synthesis process was employed to obtain the nanometric oxides in powder form (crystal sizes around 5-8nm), with a number of improved surface characteristics. The characterization by X-Ray Diffraction (XRD), Scanning and Transmission Electron Microscopy (SEM, TEM) and X-Ray Fluorescence (XRF), allowed to evaluate the morphology and the stoichiometric compositions of solids, obtaining a concordant pure crystalline phase of LiCoO2 and LiMn2O4 oxides identified in a rhombohedral and cubic phase with punctual group R-3m (1 6 6) and Fm-3m (2 2 5) respectively. The electrical characterization of materials developed by impedance spectroscopy solid state, allowed to determine a p-type semiconducting behaviour with conductivity values of 6.2×10-3 and 2.7×10-7 S for LiCoO2 and LiMn2O4 systems, consistent with the state of the art for such materials.

  4. Raman spectrum of the solid electrolytes LiI·H2O and LiI·D2O

    DEFF Research Database (Denmark)

    Poulsen, Finn Willy

    1986-01-01

    The Raman spectra of cubic LiI·H2O and LiI·D2O have been revised. The spectra reveal only internal and librational modes of H2O (D2O). The isotopic ratios νH/νD, are in the range 1.33-1.78......The Raman spectra of cubic LiI·H2O and LiI·D2O have been revised. The spectra reveal only internal and librational modes of H2O (D2O). The isotopic ratios νH/νD, are in the range 1.33-1.78...

  5. Uniform second Li ion intercalation in solid state ϵ -LiVOPO 4

    Energy Technology Data Exchange (ETDEWEB)

    Wangoh, Linda W.; Sallis, Shawn; Wiaderek, Kamila M.; Lin, Yuh-Chieh; Wen, Bohua; Quackenbush, Nicholas F.; Chernova, Natasha A.; Guo, Jinghua; Ma, Lu; Wu, Tianpin; Lee, Tien-Lin; Schlueter, Christoph; Ong, Shyue Ping; Chapman, Karena W.; Whittingham, M. Stanley; Piper, Louis F. J.

    2016-08-01

    Full, reversible intercalation of two Li+ has not yet been achieved in promising VOPO4 electrodes. A pronounced Li+ gradient has been reported in the low voltage window (i.e. second lithium reaction) that is thought to originate from disrupted kinetics in the high voltage regime (i.e first lithium reaction). Here we employ a combination of hard and soft x–ray photoelectron and absorption spectroscopy techniques to depth profile solid state synthesized LiVOPO4 cycled within the low voltage window only. Analysis of the vanadium environment revealed no evidence of a Li+ gradient, which combined with almost full theoretical capacity confirms that disrupted kinetics in the high voltage window are responsible for hindering full two lithium insertion. Furthermore, we argue that the uniform Li+ intercalation is a prerequisite for the formation of intermediate phases Li1:50VOPO4 and Li1:75VOPO4. The evolution from LiVOPO4 to Li2VOPO4 via the intermediate phases is confirmed by direct comparison between O K–edge absorption spectroscopy and density functional theory.

  6. Reversible superconductor-insulator transition in LiTi2O4 induced by Li-ion electrochemical reaction

    Science.gov (United States)

    Yoshimatsu, K.; Niwa, M.; Mashiko, H.; Oshima, T.; Ohtomo, A.

    2015-01-01

    Transition metal oxides display various electronic and magnetic phases such as high-temperature superconductivity. Controlling such exotic properties by applying an external field is one of the biggest continuous challenges in condensed matter physics. Here, we demonstrate clear superconductor-insulator transition of LiTi2O4 films induced by Li-ion electrochemical reaction. A compact electrochemical cell of pseudo-Li-ion battery structure is formed with a superconducting LiTi2O4 film as an anode. Li content in the film is controlled by applying a constant redox voltage. An insulating state is achieved by Li-ion intercalation to the superconducting film by applying reduction potential. In contrast, the superconducting state is reproduced by applying oxidation potential to the Li-ion intercalated film. Moreover, superconducting transition temperature is also recovered after a number of cycles of Li-ion electrochemical reactions. This complete reversible transition originates in difference in potentials required for deintercalation of initially contained and electrochemically intercalated Li+ ions. PMID:26541508

  7. Potentiometric CO2 Sensor Using Li Ion Conducting Li3PO4Thin Film Electrolyte

    Directory of Open Access Journals (Sweden)

    Jin Seong Park

    2005-11-01

    Full Text Available Li+ ion conducting Li3PO4 thin film electrolytes with thickness 300nm, 650nm and1.2μm were deposited on Al2O3 substrate at room temperature by thermal evaporation method.Reference and sensing electrodes were printed on Au interfaces by conventional screen printingtechnique. The overall dimension of the sensor was 3 x 3 mm and of electrodes were 1 x 1.5 mmeach. The fabricated solid state potentiometric CO2 sensors of type: CO2, O2, Au, Li2TiO3-TiO2 / Li3PO4 / Li2CO3, Au, CO2, O2 have been investigated for CO2 sensing properties. Theelectromotive force (emf and δemf/dec values of the sensors are dependent on the thickness ofthe electrolyte film. 1.2μm thickness deposited sensor has shown good sensing behavior than thesensors with less thickness. The δemf values of the sensor are linearly increased up to 460oCoperating temperature and became stable above 460oC. Between 460-500oC temperatures regionthe sensor has reached an equilibrium state and the experimentally obtained δemf values areabout 80% of the theoretically calculated values. A Nernst’s slope of -61mV/decade has beenobtained between 250 to 5000 ppm of CO2 concentration at 500oC temperature. The sensor issuitable for ease of mass production in view of its miniaturization and cost effectiveness aftersome further improvement.

  8. Crystal structure and magnetic properties of Li,Cr-containing molybdates Li 3Cr(MoO 4) 3, LiCr(MoO 4) 2 and Li 1.8Cr 1.2(MoO 4) 3

    Science.gov (United States)

    Sarapulova, A.; Mikhailova, D.; Senyshyn, A.; Ehrenberg, H.

    2009-12-01

    Single crystals of LiCr(MoO 4) 2, Li 3Cr(MoO 4) 3 and Li 1.8Cr 1.2(MoO 4) 3 were grown by a flux method during the phase study of the Li 2MoO 4-Cr 2(MoO 4) 3 system at 1023 K. LiCr(MoO 4) 2 and Li 3Cr(MoO 4) 3 single phases were synthesized by solid-state reactions. Li 3Cr(MoO 4) 3 adopts the same structure type as Li 3In(MoO 4) 3 despite the difference in ionic radii of Cr 3+ and In 3+ for octahedral coordination. Li 3Cr(MoO 4) 3 is paramagnetic down to 7 K and shows a weak ferromagnetic component below this temperature. LiCr(MoO 4) 2 is isostructural with LiAl(MoO 4) 2 and orders antiferromagnetically below 20 K. The magnetic structure of LiCr(MoO 4) 2 was determined from low-temperature neutron diffraction and is based on the propagation vektor k⇒=({1}/{2},{1}/{2},0). The ordered magnetic moments were refined to 2.3(1) μ B per Cr-ion with an easy axis close to the [1 1 1¯] direction. A magnetic moment of 4.37(3) μ B per Cr-ion was calculated from the Curie constant for the paramagnetic region. The crystal structures of the hitherto unknown Li 1.8Cr 1.2(MoO 4) 3 and LiCr(MoO 4) 2 are compared and reveal a high degree of similarity: In both structures MoO 4-tetrahedra are isolated from each other and connected with CrO 6 and LiO 5 via corners. In both modifications there are Cr 2O 10 fragments of edge-sharing CrO 6-octahedra.

  9. LINE EMISSION AND ANISOTROPY EFFECTS IN C6+ ELECTRON-CAPTURE FROM LI(2S), LI-ASTERISK(2P) AND H-ASTERISK(N=2)

    NARCIS (Netherlands)

    OLSON, RE; HOEKSTRA, R

    Line emission cross sections for visible transitions after electron capture collisions of C6+ With Li(2s), Li-*(2p), and H-*(n = 2) are calculated for energies up to 50 keV/u; the values agree with available Li(2s) data. Anisotropy parameters are also given for aligned Li-*(2p). The results were

  10. Reversible Li-insertion in nanoscaffolds: A promising strategy to alter the hydrogen sorption properties of Li-based complex hydrides

    NARCIS (Netherlands)

    Ngene, Peter; Verkuijlen, Margriet H. W.; Barre, Charlotte; Kentgens, Arno P. M.; de Jongh, Petra E.

    Intercalation and de-intercalation of lithium into graphene layers is a well-established phenomenon in Li-ion battery technology. Here we show how this phenomenon can be exploited to destabilize, and alter the hydrogen sorption behaviour of Li-based metal hydrides (LiBH4 and LiAlH4), thereby

  11. Spectroscopy of Lambda-9Li by electroproduction

    CERN Document Server

    Urciuoli, G M; Marrone, S; Acha, A; Ambrozewicz, P; Aniol, K A; Baturin, P; Bertin, P Y; Benaoum, H; Blomqvist, K I; Boeglin, W U; Breuer, H; Brindza, P; Bydzovsky, P; Camsonne, A; Chang, C C; Chen, J -P; Choi, Seonho; Chudakov, E A; Cisbani, E; Colilli, S; Coman, L; Craver, B J; De Cataldo, G; de Jager, C W; De Leo, R; Deur, A P; Ferdi, C; Feuerbach, R J; Folts, E; Fratoni, R; Frullani, S; Garibaldi, F; Gayou, O; Giuliani, F; Gomez, J; Gricia, M; Hansen, J O; Hayes, D; Higinbotham, D W; Holmstrom, T K; Hyde, C E; Ibrahim, H F; Iodice, M; Jiang, X; Kaufman, L J; Kino, K; Kross, B; Lagamba, L; LeRose, J J; Lindgren, R A; Lucentini, M; Margaziotis, D J; Markowitz, P; Meziani, Z E; McCormick, K; Michaels, R W; Millener, D J; Miyoshi, T; Moffit, B; Monaghan, P A; Moteabbed, M; Camacho, C Munoz; Nanda, S; Nappi, E; Nelyubin, V V; Norum, B E; Okasyasu, Y; Paschke, K D; Perdrisat, C F; Piasetzky, E; Punjabi, V A; Qiang, Y; Reimer, P E; Reinhold, J; Reitz, B; Roche, R E; Rodriguez, V M; Saha, A; Santavenere, F; Sarty, A J; Segal, J; Shahinyan, A; Singh, J; Sirca, S; Snyder, R; Solvignon, P H; Sotona, M; Subedi, R; Sulkosky, V A; Suzuki, T; Ueno, H; Ulmer, P E; Veneroni, P; Voutier, E; Wojtsekhowski, B B; Zheng, X; Zorn, C

    2014-01-01

    In the absence of accurate data on the free two-body hyperon-nucleon interaction, the spectra of hypernuclei can provide information on the details of the effective hyperon-nucleon interaction. Electroproduction of the hypernucleus Lambda-9Li has been studied for the first time with sub-MeV energy resolution in Hall A at Jefferson Lab on a 9Be target. In order to increase the counting rate and to provide unambiguous kaon identification, two superconducting septum magnets and a Ring Imaging CHerenkov detector (RICH) were added to the Hall A standard equipment. The cross section to low-lying states of Lambda-9Li is concentrated within 3 MeV of the ground state and can be fitted with four peaks. The positions of the doublets agree with theory while a disagreement could exist with respect to the relative strengths of the peaks in the doublets. A Lambda separation energy of 8.36 +- 0.08 (stat.) +- 0.08 (syst.) MeV was measured, in agreement with an earlier experiment.

  12. Information systems and computing technology

    CERN Document Server

    Zhang, Lei

    2013-01-01

    Invited papersIncorporating the multi-cross-sectional temporal effect in Geographically Weighted Logit Regression K. Wu, B. Liu, B. Huang & Z. LeiOne shot learning human actions recognition using key posesW.H. Zou, S.G. Li, Z. Lei & N. DaiBand grouping pansharpening for WorldView-2 satellite images X. LiResearch on GIS based haze trajectory data analysis system Y. Wang, J. Chen, J. Shu & X. WangRegular papersA warning model of systemic financial risks W. Xu & Q. WangResearch on smart mobile phone user experience with grounded theory J.P. Wan & Y.H. ZhuThe software reliability analysis based on

  13. Prime Contract Awards by State or Country, Place and Contractor. Part 11 (Gibbsboro Air Force Station, New Jersey - Peekskill, New York), FY1991

    Science.gov (United States)

    1991-01-01

    Ii- N~ 1.- in I. -cIC a0000 (n 11 toI C a 0300 Cn11 E I M o a -441 1- moCo a CO7) 0 sCca a s11- C00 0. n4 1. C1 - a4 .4-4-4--4-.-4.4 -4 - LA 41 M (A...1Cmr-m00n~n4-qt 1-0 D a) MA-4In In (n li 1-4000000000 LI.Ř’I400-4 1, Hcc -4 4 4 -4 - wm1-wwwwo00 In -J00 0f-4-4"" wU 0-(1((1(1( 0HM40--4 44#0oo0 000

  14. Proceedings, U.S. Army Corps of Engineers Seminar on Water Project Financing Held at Fort Belvoir, Virginia on 16-17 May 1984.

    Science.gov (United States)

    1984-10-01

    Health. , 1 %’ a711. 14.8% OP 24 Polution F io oulon "__ " controlcntoU%/ 53% 1983 1984 DIN Some:s The Bond Suywn 130 , ir...NE-4 $4t 4.) ..- o to GU a) W- La0’J1. 03 LA CQ (a 0. A U) V4 H) ) Wto -U w 4-) $4 " . 4) ’U r 4.) 4) 0) V ’UU) C1-0 4) 0 U’ ’U) r44) U) U ’) 4 4 .) 4...LL WU 0 0 z Zo zCO 0 L - 0> I- LU.. C.) U--0 OW’OO00a O0w CL w j W ) Li. C) W oo LU~L ccU . 0 4cU 10 >L~ 0 ccouo U) LI D LA o 233 LU LUo _j m I. 0

  15. Nanoshell Encapsulated Li-ion Battery Anodes for Long Cycle Life Project

    Data.gov (United States)

    National Aeronautics and Space Administration — A new high capacity rechargeable Li battery anode based on Li metal alloys protected by carbon nanoshells will be developed. A reversible Li-ion capacity exceeding...

  16. Üliõpilasesindajad võtsid vastu resolutsiooni välistudengite kaitseks / Sandra Saar

    Index Scriptorium Estoniae

    Saar, Sandra

    2016-01-01

    Eesti Üliõpilaskondade Liidu eestvedamisel toimunud Balti- ja Põhjamaade üliõpilaste kohtumisest, kus võeti vastu otsus äärmuste osas kelle tegevuse tõttu on ohustatud rahvusvaheliste üliõpilaste heaolu

  17. Traditional Chinese Medicine Induced Liver Injury.

    Science.gov (United States)

    Teschke, Rolf

    2014-06-01

    Traditional Chinese Medicine (TCM) is popular around the world and encompasses many different practices with particular emphasis on herbal TCM. Using the PubMed database, a literature search was undertaken to assess the extent herbal TCM products exert rare hepatotoxicity. Analysis of reported cases revealed numerous specified herbal TCM products with potential hepatotoxicity. Among these were An Shu Ling, Bai Fang, Bai Xian Pi, Ban Tu Wan, Bo He, Bo Ye Qing Niu Dan, Bofu Tsu Sho San, Boh Gol Zhee, Cang Er Zi, Chai Hu, Chaso, Chi R Yun, Chuan Lian Zi, Ci Wu Jia, Da Chai Hu Tang, Da Huang, Du Huo, Gan Cao, Ge Gen, Ho Shou Wu, Hu Bohe You, Hu Zhang, Huang Qin, Huang Yao Zi, Hwang Geun Cho, Ji Gu Cao, Ji Ji, Ji Xue Cao, Jiguja, Jin Bu Huan, Jue Ming Zi, Kamishoyosan, Kudzu, Lei Gong Teng, Long Dan Xie Gan Tang, Lu Cha, Ma Huang, Mao Guo Tian Jie Cai, Onshido, Polygonum multiflorum, Qian Li Guang, Ren Shen, Sairei To, Shan Chi, Shen Min, Shi Can, Shi Liu Pi, Shou Wu Pian, Tian Hua Fen, White flood, Wu Bei Zi, Xi Shu, Xiao Chai Hu Tang, Yin Chen Hao, Zexie, Zhen Chu Cao, and various unclassified Chinese herbal mixtures. Causality was firmly established for a number of herbal TCM products by a positive reexposure test result, the liver specific scale of CIOMS (Council for International Organizations of Medical Sciences), or both. Otherwise, the quality of case data was mixed, especially regarding analysis of the herb ingredients because of adulteration with synthetic drugs, contamination with heavy metals, and misidentification. In addition, non-herbal TCM elements derived from Agaricus blazei, Agkistrodon, Antelope, Bombyx, Carp, Fish gallbladder, Phellinus, Scolopendra, Scorpio, and Zaocys are also known or potential hepatotoxins. For some patients, the clinical course was severe, with risks for acute liver failure, liver transplantation requirement, and lethality. In conclusion, the use of few herbal TCM products may rarely be associated with hepatotoxicity in some

  18. Traditional Chinese Medicine Induced Liver Injury

    Science.gov (United States)

    2014-01-01

    Traditional Chinese Medicine (TCM) is popular around the world and encompasses many different practices with particular emphasis on herbal TCM. Using the PubMed database, a literature search was undertaken to assess the extent herbal TCM products exert rare hepatotoxicity. Analysis of reported cases revealed numerous specified herbal TCM products with potential hepatotoxicity. Among these were An Shu Ling, Bai Fang, Bai Xian Pi, Ban Tu Wan, Bo He, Bo Ye Qing Niu Dan, Bofu Tsu Sho San, Boh Gol Zhee, Cang Er Zi, Chai Hu, Chaso, Chi R Yun, Chuan Lian Zi, Ci Wu Jia, Da Chai Hu Tang, Da Huang, Du Huo, Gan Cao, Ge Gen, Ho Shou Wu, Hu Bohe You, Hu Zhang, Huang Qin, Huang Yao Zi, Hwang Geun Cho, Ji Gu Cao, Ji Ji, Ji Xue Cao, Jiguja, Jin Bu Huan, Jue Ming Zi, Kamishoyosan, Kudzu, Lei Gong Teng, Long Dan Xie Gan Tang, Lu Cha, Ma Huang, Mao Guo Tian Jie Cai, Onshido, Polygonum multiflorum, Qian Li Guang, Ren Shen, Sairei To, Shan Chi, Shen Min, Shi Can, Shi Liu Pi, Shou Wu Pian, Tian Hua Fen, White flood, Wu Bei Zi, Xi Shu, Xiao Chai Hu Tang, Yin Chen Hao, Zexie, Zhen Chu Cao, and various unclassified Chinese herbal mixtures. Causality was firmly established for a number of herbal TCM products by a positive reexposure test result, the liver specific scale of CIOMS (Council for International Organizations of Medical Sciences), or both. Otherwise, the quality of case data was mixed, especially regarding analysis of the herb ingredients because of adulteration with synthetic drugs, contamination with heavy metals, and misidentification. In addition, non-herbal TCM elements derived from Agaricus blazei, Agkistrodon, Antelope, Bombyx, Carp, Fish gallbladder, Phellinus, Scolopendra, Scorpio, and Zaocys are also known or potential hepatotoxins. For some patients, the clinical course was severe, with risks for acute liver failure, liver transplantation requirement, and lethality. In conclusion, the use of few herbal TCM products may rarely be associated with hepatotoxicity in some

  19. LiCHy: The CAF’s LiDAR, CCD and Hyperspectral Integrated Airborne Observation System

    Directory of Open Access Journals (Sweden)

    Yong Pang

    2016-05-01

    Full Text Available We describe the design, implementation and performance of a novel airborne system, which integrates commercial waveform LiDAR, CCD (Charge-Coupled Device camera and hyperspectral sensors into a common platform system. CAF’s (The Chinese Academy of Forestry LiCHy (LiDAR, CCD and Hyperspectral Airborne Observation System is a unique system that permits simultaneous measurements of vegetation vertical structure, horizontal pattern, and foliar spectra from different view angles at very high spatial resolution (~1 m on a wide range of airborne platforms. The horizontal geo-location accuracy of LiDAR and CCD is about 0.5 m, with LiDAR vertical resolution and accuracy 0.15 m and 0.3 m, respectively. The geo-location accuracy of hyperspectral image is within 2 pixels for nadir view observations and 5–7 pixels for large off-nadir observations of 55° with multi-angle modular when comparing to LiDAR product. The complementary nature of LiCHy’s sensors makes it an effective and comprehensive system for forest inventory, change detection, biodiversity monitoring, carbon accounting and ecosystem service evaluation. The LiCHy system has acquired more than 8000 km2 of data over typical forests across China. These data are being used to investigate potential LiDAR and optical remote sensing applications in forest management, forest carbon accounting, biodiversity evaluation, and to aid in the development of similar satellite configurations. This paper describes the integration of the LiCHy system, the instrument performance and data processing workflow. We also demonstrate LiCHy’s data characteristics, current coverage, and potential vegetation applications.

  20. Assessing LiDAR elevation data for KDOT applications.

    Science.gov (United States)

    2013-02-01

    LiDAR-based elevation surveys are a cost-effective means for mapping topography over large areas. LiDAR : surveys use an airplane-mounted or ground-based laser radar unit to scan terrain. Post-processing techniques are : applied to remove vegetation ...

  1. Degradation Studies on LiFePO4 cathode

    DEFF Research Database (Denmark)

    Scipioni, Roberto; Jørgensen, Peter Stanley; Hjelm, Johan

    2015-01-01

    In this paper we examine a laboratory LiFePO4 (LFP) cathode and propose a simple model that predicts the electrode capacity as function of C-rate, number of cycles and calendar time. Microcracks were found in Li1-xFePO4 particles in a degraded LFP electrode and low-acceleration voltage (1 kV) FIB...

  2. 2006 OSIP OGRIP Coastal Counties LiDAR Survey

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 2006 OSIP digital LiDAR data was collected during the months of March and May (leaf-off conditions). The LiDAR covers the entire land area of the northern tier...

  3. Üliõpilasteater sõidab Belgiasse

    Index Scriptorium Estoniae

    2008-01-01

    Tartu Üliõpilasteater on Eugene Ionesco "Ninasarvikuga" (lavastaja Kalev Kudu) Belgias festivalil. Festivali korraldab Liege'i Kuninglik Ülikool ja sellest saab alguse Tartu Üliõplasteatri ja Liege'i Kuningliku Ülikooli teatri kolmeaastane koostööprojekt, mida rahastavad peamiselt mõlema riigi kultuuriministeeriumid

  4. [MECHANISMS OF THE EFFECT OF Li+ ON MYOCARDIUM OF VERTEBRATES].

    Science.gov (United States)

    Shemarova, I V; Korotkov, S M; Nesterov, V P

    2015-01-01

    The effect of Li+ on the frog Rana temporaria myocardium and its influence on the ion transport in the rat heart mitochondria (RHM) were studied. Li+ added to the normal Ringer solution (Li(+)-R) was found to attenuate myocardial tension, decrease the maximal rate of tension development and its half-relaxation time. Comparison of the cardiac muscle contraction parameters in the Li(+)-R with the effect of the voltage-gated Ca(2+)-channels (Cav1.2), verapamil and CdCl2, showed that the negative inotropic effect of the Na+ replacement by Li+ in the limited intermembrane ("fuzzy") space is underlain by the blocking of Ca2+ influx into the myoplasm via the reverse Ca2+/Na(+)-exchanger in the plasma membrane (PM). This, in turn, prevents Ca(2+)-induced massive Ca2+ release into the myoplasm via the RYR2-channels in the sarcoplasmic reticulum (SR) leading in aggregate to suppression of Ca(2+)-dependent myocardial contractions. In the experimental studies of the Li+ effect on the RHM it was established that Li+ just slightly increases the passive permeability of the inner mitochondrial membrane (IMM) for K+ and H+ and decreases the intensity of ion pumping out of the energized mitochondrial matrix to the external medium. This may also indicate the lack of relationship between the mitochondrial oxidative processes and the reduction in the myocardial contractile activity under the Na+ replacement by Li+.

  5. Li juhatuse esimehena astus ametisse Eimar Veldre

    Index Scriptorium Estoniae

    2007-01-01

    1. aprillist astus ametisse Eesti Üliõpilaskondade Liidu uus juhatus. Juhatuse esimeheks on Eimar Veldre Tallinna Ülikoolist, juhatuse aseesimeesteks Annika Kruuse, Catlyn Kirna ja Maris Mälzer. Eimar Veldre on viimased kaks aastat olnud Tallinna Ülikooli üliõpilaskonna juhatuses

  6. Lithium samarium polyphosphate, LiSm(PO34

    Directory of Open Access Journals (Sweden)

    Dan Zhao

    2010-02-01

    Full Text Available The mixed-metal rare-earth polyphosphate LiSm(PO34 consists of a three-dimensional framework in which zigzag [(PO3n]n− chains with a periodicity of four PO4 tetrahedra are connected through Li+ and Sm3+ ions (both with 2. symmetry.

  7. Nanostructured Materials for Li-Ion Batteries and Beyond

    Directory of Open Access Journals (Sweden)

    Xifei Li

    2016-04-01

    Full Text Available This Special Issue “Nanostructured Materials for Li-Ion Batteries and Beyond” of Nanomaterials is focused on advancements in the synthesis, optimization, and characterization of nanostructured materials, with an emphasis on the application of nanomaterials for building high performance Li-ion batteries (LIBs and future systems.[...

  8. NUCLEON POLARIZATION IN 3-BODY MODELS OF POLARIZED LI-6

    NARCIS (Netherlands)

    SCHELLINGERHOUT, NW; KOK, LP; COON, SA; ADAM, RM

    1993-01-01

    Just as He-3 --> can be approximately characterized as a polarized neutron target, polarized Li-6D has been advocated as a good isoscalar nuclear target for the extraction of the polarized gluon content of the nucleon. The original argument rests upon a presumed ''alpha + deuteron'' picture of Li-6,

  9. Analysis of inflow parameters using LiDARs

    NARCIS (Netherlands)

    Giyanani, A.H.; Bierbooms, W.A.A.M.; Van Bussel, G.J.W.

    2014-01-01

    Remote sensing of the atmospheric variables with the use of LiDAR is a relatively new technique for wind resource assessment and oncoming wind prediction in wind energy. The validation of LiDAR measurements and comparisons with other sensing elements thus, is of high importance for further

  10. Fragmentation of positronium in collision with Li ion including ...

    Indian Academy of Sciences (India)

    Abstract. Fragmentation of ground state ortho-positronium (Ps) in collision with Li ion (Li+) is studied in the framework of post-collisional Coulomb distorted eikonal ap- proximation (CDEA), giving special emphasis on the dynamics of the electron loss to the continuum (ELC) that occurs when the electron (e) and the positron ...

  11. Core TuLiP - Logic Programming for Trust Management

    NARCIS (Netherlands)

    Czenko, M.R.; Etalle, Sandro; Dahl, V.; Niemelä, I.

    2007-01-01

    We propose CoreTuLiP - the core of a trust management language based on Logic Programming. CoreTuLiP is based on a subset of moded logic programming, but enjoys the features of TM languages such as RT; in particular clauses are issued by different authorities and stored in a distributed manner. We

  12. 2006 OSIP OGRIP: Upland Counties LiDAR Survey

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 2006 OSIP digital LiDAR data was collected during the months of March and May (leaf-off conditions). The LiDAR covers the entire land area of the northern tier...

  13. Synthesis and characterization of PVA blended LiClO4 as electrolyte material for battery Li-ion

    Science.gov (United States)

    Gunawan, I.; Deswita; Sugeng, B.; Sudaryanto

    2017-07-01

    It have been synthesized the materials for Li ion battery electrolytes, namely PVA with the addition of LiClO4 salt were varied 0, 5, 10, 15 and 20% by weight respectively. The objective of this study is to control the ionic conductivity in traditional polymer electrolytes, to improve ionic conductivity with the addition of lithium perchlorat (LiClO4). These electrolyte materials prepared by PVA powder was dissolved into distilled water and added LiClO4 salt were varied. After drying the solution, PVA sheet blended LiClO4 salt as electrolyte material for Li ion battery obtained. PVA blended LiClO4 salt crystallite form was confirmed using X-Ray Difraction (XRD) equipment. Observation of the morphology done by using Scanning Electron Microscope (SEM). While the electrical conductivity of the material is measured using LCR meter. The results of XRD pattern of LiClO4 shows intense peaks at angles 2θ = 23.2, 32.99, and 36.58°, which represent the crystalline nature of the salt. Particles morphology of the sample revealed by scanning electron microscopy are irregular in shape and agglomerated, with mean size 200-300 nm. It can be concluded that polycrystalline particles are composed of large number of crystallites. The study of conductivity by using LCR meter shows that all the graphs represent the DC and AC conductivity phenomena.

  14. Are lithium niobate (LiNbO{sub 3}) and lithium tantalate (LiTaO{sub 3}) ferroelectrics bioactive?

    Energy Technology Data Exchange (ETDEWEB)

    Vilarinho, Paula Maria, E-mail: paula.vilarinho@ua.pt; Barroca, Nathalie; Zlotnik, Sebastian; Félix, Pedro; Fernandes, Maria Helena

    2014-06-01

    The use of functional materials, such as ferroelectrics, as platforms for tissue growth in situ or ex situ, is new and holds great promise. But the usage of materials in any bioapplication requires information on biocompatibility and desirably on bioactive behavior when bone tissue engineering is envisaged. Both requirements are currently unknown for many ferroelectrics. Herein the bioactivity of LiNbO{sub 3} and LiTaO{sub 3} is reported. The formation of apatite-like structures on the surface of LiNbO{sub 3} and LiTaO{sub 3} powders after immersion in simulated body fluid (SBF) for different soaking periods indicates their bioactive potential. The mechanism of apatite formation is suggested. In addition, the significant release of lithium ions from the ferroelectric powders in the very first minutes of soaking in SBF is examined and ways to overcome this likely hurdle addressed. - Highlights: • LiNbO{sub 3} and LiTaO{sub 3} are bioactive ferroelectrics. • Cauliflower apatite type structures indicative of in-vitro bioactivity of LiNbO{sub 3} and LiTaO{sub 3.} • Negative surface charges anchor Ca{sup 2+} to which PO{sub 4}{sup 3−} attracts forming apatite structure nuclei. • Use of ferroelectrics as platforms for tissue growth in situ or ex situ is new and holds great promise.

  15. NMR study of intrinsic defects in congruent LiNbO 3. 1. “Unoverlapping” defects

    Science.gov (United States)

    Yatsenko, A. V.; Ivanova, E. N.; Sergeev, N. A.

    1997-10-01

    The simulations of NMR spectra of 7Li and 93Nb nuclei for different models of intrinsic defects in single crystal of congruent lithium niobate have been performed. It has been shown that the most probable defects in LiNbO 3 are complex (Nb Li + 3V Li) and isolated V Li. The NMR spectra of 7Li have been simulated assuming that the potential surface of Li ion in distorted LiO 6 octahedron has four minima.

  16. 76 FR 27175 - Quarterly Publication of Individuals Who Have Chosen To Expatriate, as Required by Section 6039G

    Science.gov (United States)

    2011-05-10

    ..., JR WINSTON WRIGHT MARTIN CLAUDE WU HO-MOU YANG HAN HSIANG YANG XUEMING YAU KEI YEE GLENN SEKKEMN... CHONG HWA YOUNG DESMOND W. YOUNG GILBERTO YOUNGER MATTHEW F YU XIAO YANG YUAN MARK FU-CHUN ZALATIMO ZADE...

  17. Periodic Solution of the Hematopoiesis Equation

    Directory of Open Access Journals (Sweden)

    Ji-Huan He

    2013-01-01

    Full Text Available Wu and Liu (2012 presented some results for the existence and uniqueness of the periodic solutions for the hematopoiesis model. This paper gives a simple approach to find an approximate period of the model.

  18. 76 FR 55909 - Ocean Transportation Intermediary License; Applicants

    Science.gov (United States)

    2011-09-09

    ... Type: New NVO & OFF License. M & D Global Logistics, Inc. (NVO), 2211 S. Hacienda Blvd., Suite 200D, Hacienda Heights, CA 91745, Officers: Jeffrey Wu, Treasurer/CFO/ Director (Qualifying Individual), Bofei...

  19. 1 - 6_Abubakar and Muhammad_1

    African Journals Online (AJOL)

    User

    Navarro, 2000; Wu et al., 2005). Low phosphorus availability of many tropical and subtropical soils in combination with insufficient P fertilizer applicationhas been identified as one of the major factors responsible for low yields. (Kretzchmar et.

  20. Genetics Home Reference: Potocki-Shaffer syndrome

    Science.gov (United States)

    ... This Page Hall CR, Wu Y, Shaffer LG, Hecht JT. Familial case of Potocki-Shaffer syndrome associated ... Sue WC, Sheffield LJ, Irons M, Gomez EG, Hecht JT, Potocki L, Shaffer LG. Construction of a ...

  1. Evaluation of the Suspending Properties of the Co- precipitate of ...

    African Journals Online (AJOL)

    filtered through a clean muslin cloth to obtain a viscous filtrate (gum). The filtrate ..... Form Design, Churchill Livingston, Spain; 2007. Chap. 23; pp 383-405. 2. ... Wu S. Interfacial energy, structure and adhesion between polymers. In: Paul Dr.

  2. Requirement for capsule in colonization by Streptococcus pneumoniae

    National Research Council Canada - National Science Library

    Magee, A D; Yother, J

    2001-01-01

    .... Using isolates containing defined mutations in the S. pneumoniae capsule locus, we found that expression of the capsular polysaccharide is essential for colonization by the type 2 strain D39 and the type 3 strains A66 and WU2...

  3. Intellectual Property Experimentalism By Way Of Competition Law

    OpenAIRE

    Tim Wu

    2013-01-01

    Competition law and Intellectual Property have divergent intellectual cultures–the former more pragmatic and experimentalist; the latter influenced by natural law and vested rights. Tim Wu (US Federal Trade Commission)

  4. Autism and green space_clean

    Data.gov (United States)

    U.S. Environmental Protection Agency — Autism and green space metrics in California elementary school districts. This dataset is associated with the following publication: Wu, J., and L. Jackson. Inverse...

  5. WHAT IS THE ANCIENT KOREAN RELIGION?

    National Research Council Canada - National Science Library

    RICHARD D. MCBRIDE, II

    2006-01-01

    ...,” however, never use the term “shaman” (Kor. mu, Ch. wu) to describe the ritual and religious specialists, and yet they depict many kinds of beliefs and practices that we would call “religious...

  6. Frequency-domain criterion for the chaos synchronization of time ...

    Indian Academy of Sciences (India)

    domain criterion for ... Wu1 2 Yun Chen1. College of Electronic Engineering, Naval University of Engineering, Wuhan 430033, People's Republic of China; Guangzhou Naval Marine Academy, Guangzhou 510430, People's Republic of China ...

  7. Women and the Elements: The Role of Women in Element and Fission Discoveries.

    Science.gov (United States)

    Spradley, Joseph L.

    1989-01-01

    Describes the scientific work of several women, including Marie Curie, Lise Meitner, Ida Noddack, Irene Curie, Marguerite Perey, Chien-Shiung Wu, and Maria Mayer. Discusses the connections between their discoveries. Thirty-six references are listed. (YP)

  8. Editorial-Sharing Clinical Trial Data: A Proposal from the ...

    African Journals Online (AJOL)

    Darren B Taichman, Joyce Backus, Christopher Baethge, Howard Bauchner, Peter W de Leeuw, Jeffrey M Drazen, John Fletcher, Frank A Frizelle, Trish Groves, Abraham Haileamlak, Astrid James, Christine Laine, Larry Peiperl, Anja Pinborg, Peush Sahni, Sinan Wu ...

  9. African Journal of Biotechnology - Vol 8, No 18 (2009)

    African Journals Online (AJOL)

    Numerical investigation of flow characteristics and irradiance history in a novel photobioreactor · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. L.B Wu, Y.Z Song ...

  10. Pop / Andri Riid

    Index Scriptorium Estoniae

    Riid, Andri, 1972-

    2008-01-01

    Heliplaatidest: Nice Try "Nice Try", Wu Tang Clan "8 Diagrams", Niki "Äike päike", Röövel Ööbik "Popsubterranea", Tijuana Mon Amour Broadcasting Inc. "Cold Jubilee (of the Snowqueen), "Holy Fuck "LP"

  11. Media and Security Team

    Data.gov (United States)

    Federal Laboratory Consortium — The Media And Security Team led by Prof. Min Wu was established in Fall 2001 at University of Maryland, College Park. A number of research and education activities...

  12. Dancing with the Stars: An Asterid NLR Family.

    Science.gov (United States)

    Rathjen, John P; Dodds, Peter N

    2017-10-10

    Wu and co-workers show how a network of sensor and helper NOD-like receptor proteins (NLRs) act together to confer robust resistance to diverse plant pathogens. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  13. NEW DATA ON SPIDERS (ARACHNIDA: ARANEI FROM SOUTH-WESTERN MONGOLIA

    Directory of Open Access Journals (Sweden)

    A. A. Fomichev

    2016-05-01

    Full Text Available New records of 12 species found in Mongolia for the first time are provided. One of them – Dipoena yutian Hu et Wu, 1989 – previously known only from Xinjiang Province of China is illustrated.

  14. Lead Test

    Science.gov (United States)

    ... poison you. Most lead is present as an inorganic compound and does not move well through the ... D. R., Editors (© 2006). Contemporary Practice in Clinical Chemistry: AACC Press, Washington, DC. Pp 474. Wu, A. (© ...

  15. Li vaporization property of two-phase material of Li{sub 2}TiO{sub 3} and Li{sub 2}SiO{sub 3} for tritium breeder

    Energy Technology Data Exchange (ETDEWEB)

    Ogawa, Seiya [Course of Mechanical Engineering, Graduate School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292 (Japan); Masuko, Yuki; Kato, Hirokazu; Yuyama, Hayato; Sakai, Yutaro [Department of Prime Mover Engineering, School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292 (Japan); Niwa, Eiki; Hashimoto, Takuya [Department of Physics, College of Humanities and Sciences, Nihon University, 3-8-1 Sakurajousui, Setagaya-ku, Tokyo 156-8550 (Japan); Mukai, Keisuke [Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-8656 (Japan); Hosino, Tsuyoshi [Breeding Functional Materials Development Group, Department of Blanket Systems Research, Rokkasho Fusion Institute, Sector of Fusion Research and Development, Japan Atomic Energy Agency, 2-166 Obuch, Omotedate, Rokkasho-mura, Kamikita-gun, Aomori 039-3212 (Japan); Sasaki, Kazuya, E-mail: k_sasaki@tokai-u.jp [Course of Mechanical Engineering, Graduate School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292 (Japan); Department of Prime Mover Engineering, School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292 (Japan); Course of Mechanical Engineering and Aeronautics and Astronautics, Graduate School of Science and Technology, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292 (Japan)

    2015-10-15

    Highlights: • We synthesized two phase materials based on Li{sub 2}SiO{sub 3} and Li{sub 2}TiO{sub 3}. • We investigated the Li vaporization property of the two-phase materials. • Li vaporization occurs significantly from only Li{sub 2}SiO{sub 3} grains in the vicinity of the surface of the pellets. • The Li vaporization is remarkable only for an early short time for the vaporization from Li{sub 2}SiO{sub 3} grains at the vicinity of the surface. • The second stable phase added functions effectively for inhibition of the Li vaporization. - Abstract: Li vaporization property of two-phase materials of Li{sub 2}TiO{sub 3} and Li{sub 2}SiO{sub 3} in a working condition for the solid tritium breeder used in the demonstration power plant of fusion reactor was investigated, and the suppression mechanism of the vaporization was considered. The Li vaporization rate from the specimen pellet was measured by gravimetric method, and the change of Li concentration distribution in the pellet was analyzed by time-of-flight secondary ion mass spectrometer. Li was vaporized only from the Li{sub 2}SiO{sub 3} at the vicinity of the surface of the pellet. The remarkable vaporization of Li arose only in an early short time. The inhibition of the vaporization from the Li{sub 2}SiO{sub 3} was successful by adding the small amount of the stable secondary phase of Li{sub 2}TiO{sub 3}.

  16. p53 Testing for Li-Fraumeni and Li-Fraumeni-like syndromes.

    Science.gov (United States)

    Gonzalez, Kelly; Fong, Cindy; Buzin, Carolyn; Sommer, Steve S; Saldivar, Juan-Sebastian

    2008-04-01

    Li-Fraumeni Syndrome (LFS; OMIM #151623) is an autosomal dominant cancer predisposition syndrome characterized by early onset tumors including sarcomas, breast cancer, leukemia, brain tumors, and adrenocortical carcinoma. Li-Fraumeni syndrome is primarily attributed to germline mutations in the p53 tumor suppressor gene, which encodes tumor protein 53. In addition to germline p53 mutations, the p53 gene is the most commonly mutated gene in human cancers, with as much as 50% of tumors containing somatic p53 mutations. This unit provides a protocol to perform germline mutation analysis of the p53 gene. The protocol includes steps for amplification and sequencing of the entire coding region of the p53 gene (exons 2 to 11). The protocol was designed for detecting germline alterations from DNA extracted from blood; however, with some additional optimization, it could also be used to detect somatic mutations in DNA extracted from tumors. Copyright 2008 by John Wiley & Sons, Inc.

  17. Ranges of {sup 7}Li produced in {sup 10}B(n,a){sup 7}*Li reaction

    Energy Technology Data Exchange (ETDEWEB)

    Sakai, Y. [Daido Inst. of Technol., Nagoya (Japan). Dept. of Chem.; Yonezawa, C. [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Dept. of Chemistry and Fuel Research; Matsue, H. [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Dept. of Chemistry and Fuel Research; Magara, M. [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Dept. of Chemistry and Fuel Research; Sawahata, H. [Tokyo Univ., Tokai, Ibaraki (Japan). Research Center for Nuclear Science and Technology; Ito, Y. [Tokyo Univ., Tokai, Ibaraki (Japan). Research Center for Nuclear Science and Technology

    1996-06-01

    The ranges of {sup 7}Li and {sup 7*}Li produced via the {sup 10}B(n,{alpha}){sup 7*}Li reaction in elementary boron and water were determined by analysis of the Doppler broadened line-shapes of the 478 keV prompt {gamma}-ray from the shortlived {sup 7*}Li ({tau}=1.05.10{sup -13} s). The spectral line-shapes of the prompt {gamma} rays were measured with a low background using neutron beams guided outside the reactor at JRR-3M. The range of 3.9 {mu}m estimated for {sup 7}Li in water is compared with that (4.8 {mu}m) used in boron neutron-capture therapy as an appropriate value. (orig.)

  18. Practical Methods in Li-ion Batteries

    DEFF Research Database (Denmark)

    Barreras, Jorge Varela

    to parameterize battery models based solely on manufacturer’s datasheets • Manuscript II presents a parameterization method for battery models based on the notion of direct current resistance • Manuscript III proposes a battery electric vehicle design that combines fixed and swappable packs • Manuscript IV......This thesis presents, as a collection of papers, practical methods in Li-ion batteries for simplified modeling (Manuscript I and II), battery electric vehicle design (III), battery management system testing (IV and V) and balancing system control (VI and VII). • Manuscript I tackles methodologies...... develops a battery system model for battery management system testing on a hardware-in-the-loop simulator • Manuscript V extends the previous work, introducing theoretical principles and presenting a practical method to develop ad hoc software and strategies for testing • Manuscript VI presents...

  19. High speed pulsed laser cutting of LiCoO2 Li-ion battery electrodes

    Science.gov (United States)

    Lutey, Adrian H. A.; Fortunato, Alessandro; Carmignato, Simone; Fiorini, Maurizio

    2017-09-01

    Laser cutting of Li-ion battery electrodes represents an alternative to mechanical blanking that avoids complications associated with tool wear and allows assembly of different cell geometries with a single device. In this study, laser cutting of LiCoO2 Li-ion battery electrodes is performed at up to 5m /s with a 1064nm wavelength nanosecond pulsed fiber laser with a maximum average power of 500W and a repetition rate of up to 2MHz . Minimum average cutting power for cathode and anode multi-layer films is established for 12 parameter groups with velocities over the range 1 - 5m /s , varying laser pulse fluence and overlap. Within the tested parameter range, minimum energy per unit cut length is found to decrease with increasing repetition rate and velocity. SEM analysis of the resulting cut edges reveals visible clearance widths in the range 20 - 50 μm , with cut quality found to improve with velocity due to a reduction in lateral heat conduction losses. Raman line map spectra reveal changes in the cathode at 60 μm from the cut edge, where bands at 486cm-1 and 595cm-1 , corresponding to the Eg and A1g modes of LiCoO2 , are replaced with a single wide band centered at 544cm-1 , and evidence of carbon black is no longer present. No changes in Raman spectra are observed in the anode. The obtained results suggest that further improvements in cutting efficiency and quality could be achieved by increasing the repetition rate above 2MHz , thereby improving ablation efficiency of the metallic conductor layers. The laser source utilized in the present study nonetheless represents an immediately available solution for repeatability and throughput that are superior to mechanical blanking.

  20. Reinfusion of ascites during hemodialysis as a treatment of massive refractory ascites and acute renal failure

    Directory of Open Access Journals (Sweden)

    Ta-Wei Hsu

    2011-02-01

    Full Text Available Ta-Wei Hsu1, Yi-Chuan Chen2, Meei-Ju Wu2, Anna Fen-Yau Li3, Wu-Chang Yang2, Yee-Yung Ng21Department of Medicine, I-Lan Hospital, 2Division of Nephrology, Department of Medicine, 3Department of Pathology, Taipei Veterans General Hospital, School of Medicine, National Yang-Ming University, Taipei, TaiwanAbstract: Refractory ascites can occur in patients with various conditions. Although several procedures based on the reinfusion of ascitic fluid have been reported after the failure of bed rest, salt and water restriction, diuretics, intravenous administration of albumin, and repeated paracentesis, these procedures are performed for ascitic fluid removal without dialytic effect. In this study, a flow control reinfusion of ascites during hemodialysis (HD was performed to demonstrate the efficacy of this method in a lupus patient with massive refractory ascites and respiratory and acute renal failure (ARF. The alleviation of ascites and ARF attests to the success of the flow control reinfusion of ascites during HD. This procedure can control the rate of ascites and body fluid removal simultaneously during HD using the roller pump. In conclusion, with a normal coagulation profile, the procedure of flow control reinfusion of ascites during HD is an effective alternative treatment for the alleviation of refractory ascites with renal failure.Keywords: ascites, lupus, renal failure, reinfusion

  1. First-principles calculations of high-pressure and -temperature properties of stishovite

    Science.gov (United States)

    Yang, R.; Wu, Z.

    2013-12-01

    Quartz is one of the main gradient of the crust and is transformed into coesite and then stishovite under pressure. Stishovite is stable at 9~50GPa [1,2]. It is estimated that stishovite makes up more than 20% of the subducted oceanic crust in the mantle transition zone and lower mantle [3,4,5]. Therefore, the properties of stishovite under high-pressure and -temperature are very critical for us to understand the mantle convection. We investigated themodynamic properties of stishovite by combing first-principles calculations with quasi-hamonic approximation. We also calculated the elastic constants of stishovite at high-temperature and -pressure using the new method developed by Wu and Wentzcovitch [6]. The calculated results are in consistence with the experimental data. Both temperature and pressure significantly affect the anistropy of the stishovite. 1, Zhang, J., Li, B., Utsumi, W., Liebermann, R. C., Phys. Chem. Miner., 23, 1-10 (1996) 2, Kingma, K. J., R. E. Cohen, R. J. Hemley, and H. K. Mao, Nature, 374, 243-245 (1995). 3. Kesson, S. E., Fitz Gerald, J. D. Shelley, J. M. G., Nature, 372,767-769 (1994) 4, Ono, S., Ito, E., Katsura, T., Earth Planet. Sci. Lett., 190, 57-63 (2001) 5, Irifue, T., Ringwood, A. E., Earth Planet. Sci. Lett., 117, 101-110 (1993) 6, Wu, Z., Wentzcovitch, R. M., Phys. Rev. B 83, 184115 (2011)

  2. Lava flow texture LiDAR signatures

    Science.gov (United States)

    Whelley, P.; Garry, W. B.; Scheidt, S. P.; Irwin, R. P., III; Fox, J.; Bleacher, J. E.; Hamilton, C. W.

    2014-12-01

    High-resolution point clouds and digital elevation models (DEMs) are used to investigate lava textures on the Big Island of Hawaii. An experienced geologist can distinguish fresh or degraded lava textures (e.g., blocky, a'a and pahoehoe) visually in the field. Lava texture depends significantly on eruption conditions, and it is therefore instructive, if accurately determined. In places where field investigations are prohibitive (e.g., Mercury, Venus, the Moon, Mars, Io and remote regions on Earth) lava texture must be assessed from remote sensing data. A reliable method for differentiating lava textures in remote sensing data remains elusive. We present preliminary results comparing properties of lava textures observed in airborne and terrestrial Light Detection and Ranging (LiDAR) data. Airborne data, in this study, were collected in 2011 by Airborne 1 Corporation and have a ~1m point spacing. The authors collected the terrestrial data during a May 2014 field season. The terrestrial scans have a heterogeneous point density. Points close to the scanner are 1 mm apart while 200 m in the distance points are 10 cm apart. Both platforms offer advantages and disadvantages beyond the differences in scale. Terrestrial scans are a quantitative representation of what a geologist sees "on the ground". Airborne scans are a point of view routinely imaged by other remote sensing tools, and can therefore be quickly compared to complimentary data sets (e.g., spectral scans or image data). Preliminary results indicate that LiDAR-derived surface roughness, from both platforms, is useful for differentiating lava textures, but at different spatial scales. As all lava types are quite rough, it is not simply roughness that is the most advantageous parameter; rather patterns in surface roughness can be used to differentiate lava surfaces of varied textures. This work will lead to faster and more reliable volcanic mapping efforts for planetary exploration as well as terrestrial

  3. Lição de Anatomia

    Directory of Open Access Journals (Sweden)

    João Luiz Leocadio da Nova

    2000-02-01

    Full Text Available Na formação médica, diagnosticamos a falência do modelo pedagógico/assistencial que se revela, dentre outros sintomas, na ideologia de frieza e distanciamento que perpassa a prática médica. Este modelo de relação médico-paciente reproduziria a relação estudante-cadáver. Visando modificar tal ideologia, desenvolvemos, na UFRJ, em atividade interdisciplinar com a Anatomia, grupos de reflexão com os alunos do primeiro período da Faculdade de Medicina. A partir dos resultados, de dois anos dessa pesquisa, denominada "O cadáver e a formação médica", realizamos, com o apoio da Fundação José Bonifácio, um vídeo didático, "Lição de Anatomia", por meio de equipe multidisciplinar, incluindo professores e alunos do Instituto de Artes e Comunicação Social da UFF, da Faculdade de Medicina da UFRJ e do Núcleo de Tecnologia Educacional para a Saúde da UFRJ (NUTES. Pretendemos que a utilização desse recurso audiovisual constitua mais uma ferramenta para a melhoria do ensino e da prática médica, introduzindo a discussão de questões éticas. A pesquisa e a realização do vídeo nos mostraram a possibilidade de se repensar e inovar o ensino universitário, o que foi, para todos nós, uma lição de convívio democrático.

  4. Extraction of Li and Co from Li-ion Batteries by Chemical Methods

    Science.gov (United States)

    Guzolu, Jafar Sharrivar; Gharabaghi, Mahdi; Mobin, Mohammad; Alilo, Hojat

    2017-04-01

    In this work a process involving ultrasonic washing and leaching and precipitation was used to recover Li and Co from spent Li-ion batteries. Ultrasonic washing was used to reduce energy consumption and pollution whereas hydrochloric acid was used as leaching reagent. 98 % of Li and nearly 99 % of Co were obtained under optimum condition of 5 M hydrochloric acid solution, temperature of 95 °C, reaction time of 70 min, and solid-liquid ratio of 10 g/L. In this process at first nickel, copper, iron, aluminum, cobalt, and manganese were precipitated from leaching solution using sodium hydroxide at pH f 12.5 and reaction time of 1 h and temperature was 55 °C and all metal recoveries were more than 99 %. In the precipitation experiments, lithium loss was only 18.34 %. In the next stage, white lithium carbonate was precipitated by addition of saturated sodium carbonate solution to the left filtrate from first precipitation step. The purity of the recovered powder of lithium was 95 %.

  5. Surveying Patterns of Noun Plural in Jibbāli

    Directory of Open Access Journals (Sweden)

    Khalsa al-Aghbari

    2015-01-01

    Full Text Available In Jibbāli, noun plurals exhibit two types of plural markers with numerous phonological alternations. There are nouns with explicit plural suffixes, nouns with internal change, plurals with a suffix and change combined, nouns taking a template and plurals with two suffixes combined. Due to Jibbāli's phonological peculiarities affecting the plural, proliferation in plural patterns is expected. For example, a deleted b in a singular decides to reoccur in the plural, assigning a distinct plural pattern. Being in contact with Arabic, due to physical proximity, Jibbāli borrowed internal plural forms from Arabic and imposed intriguing alternations into them,. For example, Jibbāli's Vb infixed plurals historically derive from the Arabic plural infix -wa:-. This is another reason for the multiplicity of plural patterns in the language. Jibbāli plurality is also characterized by doubly and triply marked plurals. For example, some Jibbāli singular forms take double plural markers (i.e. suffixation and Vb infixation together or two suffixes consecutively following one another.This study is a linguistic attempt to document the diverse patterns of noun plurals in Jibbāli, a critically understudied language in the literature to date. It uncovers plural patterns that are unique to the language, revealing historical and phonetic affiliations to Arabic, Modern South Arabian and Semitic.

  6. Processing LiDAR Data to Predict Natural Hazards

    Science.gov (United States)

    Fairweather, Ian; Crabtree, Robert; Hager, Stacey

    2008-01-01

    ELF-Base and ELF-Hazards (wherein 'ELF' signifies 'Extract LiDAR Features' and 'LiDAR' signifies 'light detection and ranging') are developmental software modules for processing remote-sensing LiDAR data to identify past natural hazards (principally, landslides) and predict future ones. ELF-Base processes raw LiDAR data, including LiDAR intensity data that are often ignored in other software, to create digital terrain models (DTMs) and digital feature models (DFMs) with sub-meter accuracy. ELF-Hazards fuses raw LiDAR data, data from multispectral and hyperspectral optical images, and DTMs and DFMs generated by ELF-Base to generate hazard risk maps. Advanced algorithms in these software modules include line-enhancement and edge-detection algorithms, surface-characterization algorithms, and algorithms that implement innovative data-fusion techniques. The line-extraction and edge-detection algorithms enable users to locate such features as faults and landslide headwall scarps. Also implemented in this software are improved methodologies for identification and mapping of past landslide events by use of (1) accurate, ELF-derived surface characterizations and (2) three LiDAR/optical-data-fusion techniques: post-classification data fusion, maximum-likelihood estimation modeling, and hierarchical within-class discrimination. This software is expected to enable faster, more accurate forecasting of natural hazards than has previously been possible.

  7. Developing New Electrolytes for Advanced Li-ion Batteries

    Science.gov (United States)

    McOwen, Dennis Wayne

    The use of renewable energy sources is on the rise, as new energy generating technologies continue to become more efficient and economical. Furthermore, the advantages of an energy infrastructure which relies more on sustainable and renewable energy sources are becoming increasingly apparent. The most readily available of these renewable energy sources, wind and solar energy in particular, are naturally intermittent. Thus, to enable the continued expansion and widespread adoption of renewable energy generating technology, a cost-effective energy storage system is essential. Additionally, the market for electric/hybrid electric vehicles, which both require efficient energy storage, continues to grow as more consumers seek to reduce their consumption of gasoline. These vehicles, however, remain quite expensive, due primarily to costs associated with storing the electrical energy. High-voltage and thermally stable Li-ion battery technology is a promising solution for both grid-level and electric vehicle energy storage. Current limitations in materials, however, limit the energy density and safe operating temperature window of the battery. Specifically, the state-of-the-art electrolyte used in Li-ion batteries is not compatible with recently developed high-voltage positive electrodes, which are one of the most effectual ways of increasing the energy density. The electrolyte is also thermally unstable above 50 °C, and prone to thermal runaway reaction if exposed to prolonged heating. The lithium salt used in such electrolytes, LiPF6, is a primary contributor to both of these issues. Unfortunately, an improved lithium salt which meets the myriad property requirements for Li-ion battery electrolytes has eluded researchers for decades. In this study, a renewed effort to find such a lithium salt was begun, using a recently developed methodology to rapidly screen for desirable properties. Four new lithium salts and one relatively new but uncharacterized lithium salt were

  8. Exploring tree species signature using waveform LiDAR data

    Science.gov (United States)

    Zhou, T.; Popescu, S. C.; Krause, K.

    2015-12-01

    Successful classification of tree species with waveform LiDAR data would be of considerable value to estimate the biomass stocks and changes in forests. Current approaches emphasize converting the full waveform data into discrete points to get larger amount of parameters and identify tree species using several discrete-points variables. However, ignores intensity values and waveform shapes which convey important structural characteristics. The overall goal of this study was to employ the intensity and waveform shape of individual tree as the waveform signature to detect tree species. The data was acquired by the National Ecological Observatory Network (NEON) within 250*250 m study area located in San Joaquin Experimental Range. Specific objectives were to: (1) segment individual trees using the smoothed canopy height model (CHM) derived from discrete LiDAR points; (2) link waveform LiDAR with above individual tree boundaries to derive sample signatures of three tree species and use these signatures to discriminate tree species in a large area; and (3) compare tree species detection results from discrete LiDAR data and waveform LiDAR data. An overall accuracy of the segmented individual tree of more than 80% was obtained. The preliminary results show that compared with the discrete LiDAR data, the waveform LiDAR signature has a higher potential for accurate tree species classification.

  9. Multifunctional Flexible Composites Based on Continuous Carbon Nanotube Fiber

    Science.gov (United States)

    2014-07-28

    emitters, solid-phase microextraction and catalysis . Different from graphene- based aerogels (GBAs) and membranes (GBMs), GBFs have demonstrated...nanotube dry-spun yarns, Carbon, 48, 2802–2811, 2010. 22. A. S. Wu and T. -W. Chou. Carbon nanotube fibers for advanced composites, Materials Today , 15...Applied Physics Letters, 100, 201908, 2012. 8. A. S. Wu and T. -W. Chou. Carbon nanotube fibers for advanced composites, Materials Today , 15, 302

  10. Synthesis of spiro[pyrazolo[3,4-b] pyridine-4,3 -indoline] and spiro ...

    Indian Academy of Sciences (India)

    22 6031. 18. Sharma G V M, Reddy J J, Lakshmi P S and Krishna. P R 2004 Tetrahedron Lett. 45 7729. 19. Wu L Q, Yang X J, Wang X and Yan F L 2010 J. Sulfur. Chem. 31 509. 20. Bigdeli M A, Heravi M M and Mahdavinia G H 2007. Catal. Commun. 8 1595. 21. Sun P L, Fang L Z and Wu L Q 2011 J. Sulfur Chem. 32. 257.

  11. Development of Mouse Models of Ovarian Cancer for Studying Tumor Biology and Testing Novel Molecularly Targeted Therapeutic Strategies

    Science.gov (United States)

    2011-09-01

    Fonseca BD, Sonenberg N. Dissecting the role of mTOR: lessons from mTOR inhibitors. Biochim Biophys Acta 2010;1804:433–9. 22. Chen XG, Liu F, Song XF...FROM THE RESEARCH EFFORT: Kathleen R. Cho (Initiating PI) Yali Zhai (Research Investigator, Cho Laboratory) Rong Wu (Research Assistant Professor...Clin Cancer Res Rong Wu, Tom C. Hu, Alnawaz Rehemtulla, et al. Mouse Model of Ovarian Endometrioid Adenocarcinoma Preclinical Testing of PI3K/AKT

  12. NFAT Signaling and the Tumorigenic Microenvironment of the Prostate

    Science.gov (United States)

    2016-10-01

    visible tumors. Interestingly, all double mutants (PCre/+;RT/+;TN/+;Ptenfl/fl) with both PTEN deficiency and NFATc1 activation developed significantly...Wyczalkowski, Kristine Wylie, Kai Ye, Reyka Jayasinghe, Mingchao Xie, Song Wu, Beifang Niu, Robert Grubb III, Kimberly J. Johnson, Hiram Gay , Ken Chen...Wyczalkowski, Kristine Wylie, Kai Ye, Reyka Jayasinghe, Mingchao Xie, Song Wu, Beifang Niu, Robert Grubb III, Kimberly J. Johnson, Hiram Gay , Ken

  13. A Survey of Statistical Machine Translation

    Science.gov (United States)

    2007-04-01

    which represent links about which annotators were uncertain, in particular “ idiomatic expressions , free translations, and missing function words” (Och...translational equivalence less computationally expensive than FST models (Wu, 1996). Numerous different approaches to SMT can be expressed in the SCFG... express the reordering relationship. A canonical example of this is the so-called inside-outside alignment, which is illustrated in Figure 9. Wu (1995b

  14. Application of Advanced Sensor Technology to DoD Soil Vapor Intrusion Problems

    Science.gov (United States)

    2012-07-01

    from 0.01 to 3.9 µg/m3 (0.002 to 0.71 ppb) with a mean of 0.88 µg/m3 (0.16 ppb) (Wu and Schaum , 2000). TCE air concentrations in urban areas were...from Sorption-based Sensor Arrays to Identify and Quantify the Composition of Analyte Mixtures, Langmuir, 23:13232-13241. Wu, C. and J. Schaum

  15. The efficacy and characteristics of warm-up and re-warm-up practices in soccer players: a systematic review.

    Science.gov (United States)

    Hammami, Amri; Zois, James; Slimani, Maamer; Russel, Mark; Bouhlel, Ezdine

    2018-01-01

    This review aimed 1) to evaluate the current research that examines the efficacy of warm-up (WU) and re-warm-up (RWU) on physical performance; and 2) to highlight the WU and RWU characteristics that optimise subsequent performance in soccer players. A computerized search was performed in the PubMed, ScienceDirect and Google Scholar (from 1995 to December 2015) for English-language, peer-reviewed investigations using the terms "soccer" OR "football" AND "warm-up" OR "stretching" OR "post-activation potentiation" OR "pre-activity" OR "re-warm-up" AND "performance" OR "jump" OR "sprint" OR "running". Twenty seven articles were retrieved. Particularly, 22 articles examined the effects of WU on soccer performance and 5 articles focused on the effects of RWU. Clear evidence exists supporting the inclusion of dynamic stretching or postactivation potentiation-based exercises within a WU as acute performance enhancements were reported (pooled estimate changes of +3.46% and +4.21%, respectively). The FIFA 11+ WU also significantly increases strength, jump, speed and explosive performances (changes from 1% to 20%). At half-time, active RWU protocols including postactivation potentiation practices and multidirectional speed drills attenuate temperature and performance reductions induced by habitual practice. The data obtained in the present review showed that the level of play did not moderate the effectiveness of WU and RWU on soccer performance. This review demonstrated that a static stretching WU reduced acute subsequent performance, while WU activities that include dynamic stretching, PAP-based exercises, and the FIFA 11+ can elicit positive effects in soccer players. The efficacy of an active RWU during half-time is also justified.

  16. SPECTROSCOPIC PROPRIETIES OF CRYSTALS MF2 (M=Cd, Sr ...

    African Journals Online (AJOL)

    30 juin 2012 ... [1] Ivanov S. P., Buchinskaya I. I. and Fedorov P.P. Distribution coefficients of impurities in Cdamium Fluoride. Inorganic Materials. 2000, 36(4), 484-488. [2] Vladimirov S.V. Characateristics of BaF2 scintillations crystals. Atomic Energy. 2001, 90(1), 55-62. [3] Wu X. and Wu Z. Theoretical calculations of the ...

  17. Quadric Resistive Sheet Profile for Wideband Antennas

    Directory of Open Access Journals (Sweden)

    Z. Raida

    2007-09-01

    Full Text Available A new type of a nonreflecting resistive dipole antenna with quadric continuous resistivity profile is presented in this paper. The antenna is mathematically described and compared with the antenna originally proposed by Wu and King. The verification of a proposed theory and the comparison between Wu-King and quadric profile are carried out by simulation models that were designed for this purpose. The attention is turned to the proper attenuation of a wave excited on the resistive sheet, especially.

  18. Unearthing the Past

    DEFF Research Database (Denmark)

    Bagger-Petersen, Mai Corlin

    2013-01-01

    Wu Wenguang, considered the father of independent Chinese documentary film, has since 2005 slowly but surely been handing over the camera to people on the margins and to younger generations of Chinese documentary filmmaking. In 2010 Wu and Caochangdi Workstation initiated the Folk Memory Document...... Documentary Project, where young filmmakers go to the countryside to gather and document memories of the Great Famine (1959-1961) from elderly villagers....

  19. The Role of Seat Belt in the Prevention of Fatalities and ...

    African Journals Online (AJOL)

    TNHJOURNALPH

    while the leut incidences were reoorded in. 2005 and 2006.The year of peak fatality index was 2005 and the leut wu 2009. The higbut number of death wu recorded in 2008 and tho lowestin2006(figuloe 2). Table 3: Meaa, 8taDdard deviation v.m. of RTA ouMmn• fur Pnl aDd Potlt- tmforaem.entperi.oda. Ple-...oJ!D . 1'111.

  20. Treatment of TBI and Concomitant Hemorrhage with Ghrelin

    Science.gov (United States)

    2011-07-01

    Hemorrhage with Ghrelin PRINCIPAL INVESTIGATOR: Rongqian Wu CONTRACTING ORGANIZATION: The Feinstein Institute for Medical Research...Concomitant Hemorrhage with Ghrelin 5b. GRANT NUMBER W81XWH-09-1-0400 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER Rongqian Wu...concomitantly due to multiple injuries. In this project, we determined the long-term effect of ghrelin , a ‘gut-brain’ hormone, in a highly military

  1. AFOSR BRI: Co-Design of Hardware/Software for Predicting MAV Aerodynamics

    Science.gov (United States)

    2016-09-27

    AFRL-AFOSR-VA-TR-2016-0329 AFOSR BRI: Co-Design of Hardware/Software for Predicting MAV Aerodynamics Wu-Chun Feng VIRGINIA POLYTECHNIC INST AND... Aerodynamics FA9550-12-1-0442 BAA-AFOSR-2012-0001 Feng, Wu-Chun VIRGINIA POLYTECHNIC INSTITUTE & STATE UNIVERSITY VIRGINIA TECH 1880 PRATT DR STE 2006...unstructured grid motifs found in computational fluid dynamics (CFD) in support of aerodynamic predictions for micro-air vehicles (MAVs). While many

  2. Electrochemical Characteristics and Li+ Ion Intercalation Kinetics of Dual-phase Li4Ti5O12/Li2TiO3 Composite in Voltage Range of 0−3 V

    KAUST Repository

    Bhatti, Humaira S

    2016-04-20

    Li4Ti5O12, Li2TiO3 and dual-phase Li4Ti5O12/Li2TiO3 composite were prepared by sol-gel method with average particle size of 1 µm, 0.3 µm and 0.4 µm, respectively. Though Li2TiO3 is electrochemically inactive, the rate capability of Li4Ti5O12/Li2TiO3 is comparable to Li4Ti5O12 at different current rates. Li4Ti5O12/Li2TiO3 also shows good rate performance of 90 mA h g-1 at high rate of 10 C in voltage range of 1−3 V, attributable to increased interfaces in the composite. While Li4Ti5O12 delivers capacity retention of 88.6 % at 0.2 C over 50 cycles, Li4Ti5O12/Li2TiO3 exhibits no capacity fading at 0.2 C (40 cycles) and capacity retention of 98.45 % at 0.5 C (50 cycles). This highly stable cycling performance is attributed to the contribution of Li2TiO3 in preventing undesirable reaction of Li4Ti5O12 with the electrolyte during cycling. CV curves of Li4Ti5O12/Li2TiO3 in 0−3 V range exhibit two anodic peaks at 1.51 V and 0.7−0.0 V, indicating two modes of lithium intercalation into the lattice sites of active material. Owing to enhanced intercalation/de-intercalation kinetics in 0−3 V, composite electrode delivers superior rate performance of 203 mAh/g at 2.85 C and 140 mAh/g at 5.7 C with good reversible capacity retention over 100 cycles.

  3. Big Bang 6Li nucleosynthesis studied deep underground (LUNA collaboration)

    Science.gov (United States)

    Trezzi, D.; Anders, M.; Aliotta, M.; Bellini, A.; Bemmerer, D.; Boeltzig, A.; Broggini, C.; Bruno, C. G.; Caciolli, A.; Cavanna, F.; Corvisiero, P.; Costantini, H.; Davinson, T.; Depalo, R.; Elekes, Z.; Erhard, M.; Ferraro, F.; Formicola, A.; Fülop, Zs.; Gervino, G.; Guglielmetti, A.; Gustavino, C.; Gyürky, Gy.; Junker, M.; Lemut, A.; Marta, M.; Mazzocchi, C.; Menegazzo, R.; Mossa, V.; Pantaleo, F.; Prati, P.; Rossi Alvarez, C.; Scott, D. A.; Somorjai, E.; Straniero, O.; Szücs, T.; Takacs, M.

    2017-03-01

    The correct prediction of the abundances of the light nuclides produced during the epoch of Big Bang Nucleosynthesis (BBN) is one of the main topics of modern cosmology. For many of the nuclear reactions that are relevant for this epoch, direct experimental cross section data are available, ushering the so-called "age of precision". The present work addresses an exception to this current status: the 2H(α,γ)6Li reaction that controls 6Li production in the Big Bang. Recent controversial observations of 6Li in metal-poor stars have heightened the interest in understanding primordial 6Li production. If confirmed, these observations would lead to a second cosmological lithium problem, in addition to the well-known 7Li problem. In the present work, the direct experimental cross section data on 2H(α,γ)6Li in the BBN energy range are reported. The measurement has been performed deep underground at the LUNA (Laboratory for Underground Nuclear Astrophysics) 400 kV accelerator in the Laboratori Nazionali del Gran Sasso, Italy. The cross section has been directly measured at the energies of interest for Big Bang Nucleosynthesis for the first time, at Ecm = 80, 93, 120, and 133 keV. Based on the new data, the 2H(α,γ)6Li thermonuclear reaction rate has been derived. Our rate is even lower than previously reported, thus increasing the discrepancy between predicted Big Bang 6Li abundance and the amount of primordial 6Li inferred from observations.

  4. Mass-spectrometric study of vaporization and thermodynamic properties of Li 2ZrO 3(s)

    Science.gov (United States)

    Kato, Yoshinari; Asano, Mitsuru; Harada, Toshio; Mizutani, Yasuo

    1993-07-01

    Partial pressures of Li(g), LiO(g), Li 2O(g) and O 2(g) over Li 2ZrO 3(s) have been determined by a mass-spectrometric Knudsen effusion method. Over various lithium-containing oxides, the partial pressures of Li 2O(g) decrease in the following order: Li 2 O > Li 5AlO 4 ⋍ Li 4TiO 4 ⋍ Li 8PbO 6 > Li 2SnO 3 > Li 4SiO 4 > Li 2TiO 3 ⋍ Li 2ZrO 3 > LiAlO 2 ⋍ Li 2SiO 3 > LiNbO 3. From the gas-solid equilibria, enthalpies of formation for Li 2ZrO 3(s) from elements and from constituent oxides have been calculated to be ΔfHo298( Li2ZrO3, s) = -(1742.3 ± 8.8) kJmol-1 and ΔfoxHo298( Li2ZrO3, s) = -(46.1 ± 92) KJmol-, respectively. Enthalpies of the reaction for adding 1 mole of Li 2O(s) to various oxides decrease with increasing the Li 2O molar content. The results show that the oxides with less Li 2O molar content have more ability to stabilize the pseudo-Li 2O component for lithium aluminates, silicates, titanates, molybdates, ferrates and zirconates.

  5. TENSOR MODELING BASED FOR AIRBORNE LiDAR DATA CLASSIFICATION

    OpenAIRE

    Li, N.; Liu, C; Pfeifer, N; Yin, J. F.; Liao, Z.Y.; Zhou, Y

    2016-01-01

    Feature selection and description is a key factor in classification of Earth observation data. In this paper a classification method based on tensor decomposition is proposed. First, multiple features are extracted from raw LiDAR point cloud, and raster LiDAR images are derived by accumulating features or the “raw” data attributes. Then, the feature rasters of LiDAR data are stored as a tensor, and tensor decomposition is used to select component features. This tensor representation could kee...

  6. TENSOR MODELING BASED FOR AIRBORNE LiDAR DATA CLASSIFICATION

    Directory of Open Access Journals (Sweden)

    N. Li

    2016-06-01

    Full Text Available Feature selection and description is a key factor in classification of Earth observation data. In this paper a classification method based on tensor decomposition is proposed. First, multiple features are extracted from raw LiDAR point cloud, and raster LiDAR images are derived by accumulating features or the “raw” data attributes. Then, the feature rasters of LiDAR data are stored as a tensor, and tensor decomposition is used to select component features. This tensor representation could keep the initial spatial structure and insure the consideration of the neighborhood. Based on a small number of component features a k nearest neighborhood classification is applied.

  7. Novel polymer Li-ion binder carboxymethyl cellulose derivative enhanced electrochemical performance for Li-ion batteries.

    Science.gov (United States)

    Qiu, Lei; Shao, Ziqiang; Wang, Daxiong; Wang, Feijun; Wang, Wenjun; Wang, Jianquan

    2014-11-04

    Novel water-based binder lithium carboxymethyl cellulose (CMC-Li) is synthesized by cotton as raw material. The mechanism of the CMC-Li as a binder is reported. Electrochemical properties of batteries' cathodes based on commercially available lithium iron phosphate (LiFePO4, LFP) and water-soluble binder are investigated. Sodium carboxymethyl cellulose (CMC-Na, CMC) and CMC-Li are used as the binder. After 200 cycles, compared with conventional poly(vinylidene fluoride) (PVDF) binder, the CMC-Li binder significantly improves cycling performance of the LFP cathode 96.7% of initial reversible capacity achieved at 175 mA h g(-1). Constant current charge-discharge test results demonstrate that the LFP electrode using CMC-Li as the binder has the highest rate capability, followed closely by those using CMC and PVDF binders, respectively. Electrochemical impedance spectroscopy test results show that the electrode using CMC-Li as the binder has lower charge transfer resistance than the electrodes using CMC and PVDF as the binders. Copyright © 2014 Elsevier Ltd. All rights reserved.

  8. Exploration of LiO2 by the method of electrochemical quartz crystal microbalance in TEGDME based Li-O2 battery

    Science.gov (United States)

    Lu, Yong; Tong, Shengfu; Qiu, Feilong; Jiang, Jie; Feng, Ningning; Zhang, Xueping; He, Ping; Zhou, Haoshen

    2016-10-01

    We confirmed the existence of LiO2 by electrochemical quartz crystal microbalance (EQCM) in TEGDME based Li-O2 batteries. Our results indicated that Li2O2 is generated through stepwise electrochemical reactions rather than disproportionation. We report for the first time that the formed Li2O2 oxidizes to LiO2 at relative negative potential and O2 at positive potential respectively. Our conclusions were based on both experimental observations and quantitative analysis. This may enlighten us to reconsider the Li-O2 batteries mechanisms in a quantitative way.

  9. Performance-intensity functions of Mandarin word recognition tests in noise: test dialect and listener language effects.

    Science.gov (United States)

    Liu, Danzheng; Shi, Lu-Feng

    2013-06-01

    This study established the performance-intensity function for Beijing and Taiwan Mandarin bisyllabic word recognition tests in noise in native speakers of Wu Chinese. Effects of the test dialect and listeners' first language on psychometric variables (i.e., slope and 50%-correct threshold) were analyzed. Thirty-two normal-hearing Wu-speaking adults who used Mandarin since early childhood were compared to 16 native Mandarin-speaking adults. Both Beijing and Taiwan bisyllabic word recognition tests were presented at 8 signal-to-noise ratios (SNRs) in 4-dB steps (-12 dB to +16 dB). At each SNR, a half list (25 words) was presented in speech-spectrum noise to listeners' right ear. The order of the test, SNR, and half list was randomized across listeners. Listeners responded orally and in writing. Overall, the Wu-speaking listeners performed comparably to the Mandarin-speaking listeners on both tests. Compared to the Taiwan test, the Beijing test yielded a significantly lower threshold for both the Mandarin- and Wu-speaking listeners, as well as a significantly steeper slope for the Wu-speaking listeners. Both Mandarin tests can be used to evaluate Wu-speaking listeners. Of the 2, the Taiwan Mandarin test results in more comparable functions across listener groups. Differences in the performance-intensity function between listener groups and between tests indicate a first language and dialectal effect, respectively.

  10. An inductive narrow-pulse RFID telemetry system for gastric slow waves monitoring.

    Science.gov (United States)

    Javan-Khoskholgh, Amir; Abukhalaf, Zaid; Ji Li; Miller, Larry S; Kiani, Mehdi; Farajidavar, Aydin

    2016-08-01

    We present a passive data telemetry system for real-time monitoring of gastric electrical activity of a living subject. The system is composed of three subsystems: an implantable unit (IU), a wearable unit (WU), and a stationary unit (SU). Data communication between the IU and WU is based on a radio-frequency identification (RFID) link operating at 13.56 MHz. Since wireless power transmission and reverse data telemetry system share the same inductive interface, a load shift keying (LSK)-based differential pulse position (DPP) coding data communication with only 6.25% duty cycle is developed to guarantee consistent wireless downlink power transmission and uplink high data transfer rate, simultaneously. The clock and data are encoded into one signal by an MSP430 microcontroller (MCU) at the IU side. This signal is sent to the WU through the inductive link, where decoded by an MSP432 MCU. Finally, the retrieved data at the WU are transmitted to the SU connected to a PC via a 2.4 GHz transceiver for real-time display and analysis. The results of the measurements on the implemented test bench, demonstrate IU-WU 125 kb/s and WU-SU 2 Mb/s data transmission rate with no observed mismatch, while the data stream was randomly generated, and matching between the transmitted data by the IU and received by the SU verified by a custom-made automated software.

  11. Uncertainty of Wheat Water Use: Simulated Patterns and Sensitivity to Temperature and CO2

    Science.gov (United States)

    Cammarano, Davide; Roetter, Reimund P.; Asseng, Senthold; Ewert, Frank; Wallach, Daniel; Martre, Pierre; Hatfield, Jerry L.; Jones, James W.; Rosenzweig, Cynthia E.; Ruane, Alex C.; hide

    2016-01-01

    Projected global warming and population growth will reduce future water availability for agriculture. Thus, it is essential to increase the efficiency in using water to ensure crop productivity. Quantifying crop water use (WU; i.e. actual evapotranspiration) is a critical step towards this goal. Here, sixteen wheat simulation models were used to quantify sources of model uncertainty and to estimate the relative changes and variability between models for simulated WU, water use efficiency (WUE, WU per unit of grain dry mass produced), transpiration efficiency (Teff, transpiration per kg of unit of grain yield dry mass produced), grain yield, crop transpiration and soil evaporation at increased temperatures and elevated atmospheric carbon dioxide concentrations ([CO2]). The greatest uncertainty in simulating water use, potential evapotranspiration, crop transpiration and soil evaporation was due to differences in how crop transpiration was modelled and accounted for 50 of the total variability among models. The simulation results for the sensitivity to temperature indicated that crop WU will decline with increasing temperature due to reduced growing seasons. The uncertainties in simulated crop WU, and in particularly due to uncertainties in simulating crop transpiration, were greater under conditions of increased temperatures and with high temperatures in combination with elevated atmospheric [CO2] concentrations. Hence the simulation of crop WU, and in particularly crop transpiration under higher temperature, needs to be improved and evaluated with field measurements before models can be used to simulate climate change impacts on future crop water demand.

  12. Physiological and Psychophysical Responses to Listening to Music during Warm-Up and Circuit-Type Resistance Exercise in Strength Trained Men

    Directory of Open Access Journals (Sweden)

    Hamid Arazi

    2015-01-01

    Full Text Available The purpose of this study was to assess the effects of listening to music during warm-up and resistance exercise on physiological (heart rate and blood pressure and psychophysical (rating of perceived exertion responses in trained athletes. Twelve strength trained male participants performed warm-up and resistance exercise without music (WU+RE without M, warm-up and resistance exercise with music (WU+RE with M, WU with M and RE without M, and WU without M and RE with M, with 48 hours space between sessions. After completing each session, the rating of perceived exertion (RPE was measured. Also, heart rate (HR, systolic (SBP and diastolic blood pressure (DBP, mean arterial pressure (MAP, and rate pressure product (RPP were assessed before, after, and 15, 30, 45, and 60 min after exercise. Results indicated that RPE was higher for WU+RE without M condition in comparison with other conditions. All conditions showed increases in cardiovascular variables after exercise. The responses of HR, SBP, and RPP were higher for WU+RE without M condition. Thus, using music during warm-up and resistance exercise is a legal method for decreasing RPE and cardiovascular responses due to resistance exercise.

  13. Radio-photoluminescence of highly irradiated LiF:Mg,Ti and LiF:Mg,Cu,P detectors

    OpenAIRE

    Mrozik, Anna; Bilski, Paweł; Marczewska, Barbara; Obryk, Barbara; Hodyr, Krzysztof; Gieszczyk, Wojciech

    2014-01-01

    The radio-photoluminescent (RPL) characteristics of LiF:Mg,Ti (MTS) and LiF:Mg,Cu,P (MCP) thermoluminescent detectors, routinely used in radiation protection dosimetry, were investigated after irradiation with ultra-high electron doses ranging up to 1 MGy. The photoluminescence of both types of LiF detectors was stimulated by a blue light (460 nm) and measured within a spectral window around 530 nm. The RPL dose response was found to be linear up to 50 kGy and sublinear in the range of 50 kGy...

  14. Tailoring Anisotropic Li-Ion Transport Tunnels on Orthogonally Arranged Li-Rich Layered Oxide Nanoplates Toward High-Performance Li-Ion Batteries.

    Science.gov (United States)

    Xu, Ming; Fei, Linfeng; Zhang, Weibing; Li, Tao; Lu, Wei; Zhang, Nian; Lai, Yanqing; Zhang, Zhian; Fang, Jing; Zhang, Kai; Li, Jie; Huang, Haitao

    2017-03-08

    High-performance Li-rich layered oxide (LRLO) cathode material is appealing for next-generation Li-ion batteries owing to its high specific capacity (>300 mAh g -1 ). Despite intense studies in the past decade, the low initial Coulombic efficiency and unsatisfactory cycling stability of LRLO still remain as great challenges for its practical applications. Here, we report a rational design of the orthogonally arranged {010}-oriented LRLO nanoplates with built-in anisotropic Li + ion transport tunnels. Such a novel structure enables fast Li + ion intercalation and deintercalation kinetics and enhances structural stability of LRLO. Theoretical calculations and experimental characterizations demonstrate the successful synthesis of target cathode material that delivers an initial discharge capacity as high as 303 mAh g -1 with an initial Coulombic efficiency of 93%. After 200 cycles at 1.0 C rate, an excellent capacity retention of 92% can be attained. Our method reported here opens a door to the development of high-performance Ni-Co-Mn-based cathode materials for high-energy density Li-ion batteries.

  15. Ion hopping in crystalline and glassy spodumene LiAl Si2 O6 : 7Li spin-lattice relaxation and 7Li echo NMR spectroscopy

    Science.gov (United States)

    Qi, F.; Rier, C.; Böhmer, R.; Franke, W.; Heitjans, P.

    2005-09-01

    Nuclear magnetic resonance spectroscopy was used to study polycrystalline β -spodumene (β-LiAlSi2O6) as well as glassy specimens with the same chemical composition. Li7 spin-lattice relaxation measurements were carried out in a broad temperature range and for several Larmor frequencies. In addition to a pronounced rate maximum at high temperatures, stemming from the long-range Li motion in these aluminosilicates, we found a weak maximum in the crystalline modification near 120K . The latter result confirms the existence of a local double-well structure in which the Li ions reside. The ionic motion was also monitored by solid- and stimulated-echo spectra as well as by the decay of the Jeener-Broekaert echo. Under conditions which are discussed in detail, the latter is a direct measure of the hopping correlation function. For the glass this function was found to decay faster and more stretched than that of the crystal at a given temperature. Furthermore, the relevant barriers against the high-temperature long-range Li motion are larger in the crystal as compared to the glass.

  16. Vaporization and thermochemical properties of Li 8Zr0 6 and comparison with other lithium-containing complex oxides

    Science.gov (United States)

    Asano, Mitsuru; Kato, Yoshinari; Harada, Toshio; Mizutani, Yasuo

    1996-06-01

    A mass-spectrometric Knudsen effusion method is used for the determination of partial pressures of Li (g), LiO (g), Li 2O (g), Li 2O 2 (g), Li 3O (g) and O 2 (g) over Li 8ZrO 6 (s/1) in the temperature range 1181-1429 K. From the gas-solid equilibria, enthalpies of formation for Li 8ZrO 6 (s) are calculated to be ΔfH298o (Li 8ZrO 6, s) = -(3558.5 ± 16.5) kJ mol -1 from the elements and ΔfoxH298o (Li 8ZrO 6, (s)= - (66.1 ± 18.6) kJ mol -1 from the constituent oxides, Li 2O(s) and ZrO 2 (s). Over various lithium-containing complex oxides, the partial pressures of Li 2O (g) decrease in the following order: Li 2O (s) > Li 5AlO 4(1) ≈ Li 2PbO 6 (s) ≈ Li 8ZrO 6 (s/1) ≈ Li 4TiO 4 (s/1) > Li 6Zr 2O 7 (s) > Li 2SnO 3 (s) > Li 4SiO 4 (s/1) > Li 2Ti 3 (s) ≈ Li 2ZrO 3 (s) > LiAlO 2 (s) ≈ Li 2SiO 3 (1) > LiNbO 3 (1). Thermodynamic activities and activity coefficients of the pseudo Li 2O component in the complex oxides are evaluated from the partial pressures of Li 2O (g). The results show that the complex oxides with less Li 20 molar content have more ability to stabilize the pseudo Li 2O component in binary Li 2OMO x, system (M  Al, Si, Ti and Zr).

  17. Effect of Li3PO4 coating of layered lithium-rich oxide on electrochemical performance

    Science.gov (United States)

    Chen, Dongrui; Zheng, Feng; Li, Liu; Chen, Min; Zhong, Xiaoxin; Li, Weishan; Lu, Li

    2017-02-01

    A novel composite of layered lithium-rich oxide, Li-Rich@Li3PO4, coated with Li3PO4 is synthesized through polydopamine template method. Physical characterizations reveal that Li-Rich@Li3PO4 is composed of nanoparticles of 100-200 nm that are coated with a uniform Li3PO4 layer of about 5 nm in thickness. Galvanostatic charge/discharge tests demonstrate enhanced cycling stability and largely increased rate capability of the material after Li3PO4 coating.

  18. Enhanced high temperature performance of LiMn2O4 coated with ...

    Indian Academy of Sciences (India)

    for LiMn2O4. However, the capacity retention of Li3BO3 coated LiMn2O4 is at least 5·6 and 7·6% higher than. LiMn2O4 when cycled at room temperature and 55 ◦C, respectively. Li3BO3 coated LiMn2O4 shows much better cycling behaviours than LiMn2O4. Keywords. Lithium ion battery; lithium manganese oxide; coating; ...

  19. Supporting Information Interesting cationic (Li+/Fe3+/Te6+) ...

    Indian Academy of Sciences (India)

    s uma

    Supporting Information. Interesting cationic (Li+/Fe3+/Te6+) variations in new rocksalt ordered structures. AKANKSHA GUPTA VINOD KUMAR and S. UMA*. Materials Chemistry Group, Department of Chemistry, University of Delhi, Delhi 110 007. India ...

  20. Ainult kaks küsimust / Kaarel Väli

    Index Scriptorium Estoniae

    Väli, Kaarel

    2011-01-01

    Tallinnas toimunud 5. rahvusvahelise laste ja noorte moeteatrite festivali „Max Moda 2011" žürii liige Kaarel Väli põhjustest, miks osutus parimaks Moskva moeteater, Eesti võistlejate esinemisest

  1. 2009 PSLC-USGS Topographic LiDAR: Wenatchee

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data of the Wenatchee USGS area of interest (AOI) east of Wenatchee, WA on May 1nd ? May...

  2. 2009 PSLC-USGS Topographic LiDAR: Wenatchee

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data of the Wenatchee USGS area of interest (AOI) east of Wenatchee, WA on May 1nd - May...

  3. Elevation - LiDAR Survey Minnehaha Creek, MN Watershed

    Data.gov (United States)

    Army Corps of Engineers, Department of the Army, Department of Defense — LiDAR Bare-Earth Grid - Minnehaha Creek Watershed District. The Minnehaha Creek watershed is located primarily in Hennepin County, Minnesota. The watershed covers...

  4. Riigijuhtide tüli viib Rumeenia poliitkriisi / Arko Olesk

    Index Scriptorium Estoniae

    Olesk, Arko, 1981-

    2007-01-01

    Rumeenia parlament peatas president Traian Basescu volitused, presidendi ja peaminister Calin Popescu vahelised lahkhelid puudutavad Iraagi sõda, ministrite ametissenimetamist ja teisi sisepoliitilisi küsimusi. Lisa: Kahe mehe tüli

  5. Electrolytes and Interphasial Chemistry in Li Ion Devices

    Directory of Open Access Journals (Sweden)

    Kang Xu

    2010-01-01

    Full Text Available Since its appearance in 1991, the Li ion battery has been the major power source driving the rapid digitalization of our daily life; however, much of the processes and mechanisms underpinning this newest battery chemistry remains poorly understood. As in any electrochemical device, the major challenge comes from the electrolyte/electrode interfaces, where the discontinuity in charge distribution and extreme disequality in electric forces induce diversified processes that eventually determine the kinetics of Li+ intercalation chemistry. This article will summarize the most recent efforts on the fundamental understanding of the interphases in Li ion devices. Emphasis will be placed on the formation chemistry of the so-called “SEI” on graphitic anode, the effect of solvation sheath structure of Li+ on the intercalation energy barrier, and the feasibility of tailoring a desired interphase. Biologically inspired approaches to an ideal interphase will also be briefly discussed.

  6. UV absorption of LiO in a supersonic jet

    Science.gov (United States)

    Little, Alison M.; Corlett, Gary K.; Ellis, Andrew M.

    1998-04-01

    We report the first observation of electronic spectra of a lithium oxide in a supersonic jet. Using laser ablation of lithium in the presence of N 2O, a new laser-induced fluorescence excitation spectrum in the 325-355 nm region has been observed. We tentatively assign this spectrum to the C 2Π-X 2Π transition of LiO. When N 2O is added downstream of the nozzle instead of being seeded into the inert carrier gas, the 325-355 nm excitation spectrum disappears and a new excitation spectrum is seen much further to the red. From these findings we deduce that the exothermic reaction Li+N 2O → LiO+N 2 produces a population inversion in the LiO product, most likely an electronic state population inversion.

  7. LiDAR (Terrain), THURSTON COUNTY, WASHINGTON, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Fugro EarthData Company furnished the collection, processing, and development of LiDAR for 825 square miles in Washington (805 square miles of Thurston County and 20...

  8. Crystal structure of Li3Ga(BO32

    Directory of Open Access Journals (Sweden)

    Robert W. Smith

    2017-03-01

    Full Text Available The crystal structure of trilithium gallium bis(orthoborate, Li3Ga(BO32, is isotypic with Li3Al(BO32 in a triclinic cell in space-group type P-1. The three Li and the unique Ga atom are coordinated by four O atoms each in tetrahedra, and the two B atoms are coordinated by three O atoms in orthoborate triangles. Chains with composition [Ga2(BO34]6− extend along the a axis. The Li atoms interleave these chains in tetrahedral interstices. A comparison is made between the structure model of the title compound and that of a previously reported model for a compound with the same composition [Abdullaev & Mamedov (1972. Zh. Strukt. Khim. 13, 943–946.

  9. Connecticut Statewide LiDAR 2016 - Blocks 1-7

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This metadata record describes the Classified Point Cloud (LAS) for the 2016 Connecticut LiDAR project covering approximately 5240 square miles in seven blocks. The...

  10. Composited reduced graphene oxide into LiFePO4/Li2SiO3 and its electrochemical impedance spectroscopy properties

    Science.gov (United States)

    Arifin, M.; Rus, Y. B.; Aimon, A. H.; Iskandar, F.; Winata, T.; Abdullah, M.; Khairurrijal, K.

    2017-03-01

    LiFePO4 is commonly used as cathode material for Li-ion batteries due to its stable operational voltage and high specific capacity. However, it suffers from certain disadvantages such as low intrinsic electronic conductivity and low ionic diffusion. This study was conducted to analyse the effect of reduced graphene oxide (rGO) on the electrochemical properties of LiFePO4/Li2SiO3 composite. This composite was synthesized by a hydrothermal method. Fourier transform infrared spectroscopy measurement identified the O-P-O, Fe-O, P-O, and O-Si-O- bands in the LiFePO4/Li2SiO3 composite. X-ray diffraction measurement confirmed the formation of LiFePO4. Meanwhile, Raman spectroscopy confirmed the number of rGO layers. Further, scanning electron microscopy images showed that rGO was distributed around the LiFePO4/Li2SiO3 particles. Finally, the electrochemical impedance spectroscopy results showed that the addition of 1 wt% of rGO to the LiFePO4/Li2SiO3 composite reduced charge transfer resistance. It may be concluded that the addition of 1 wt% rGO to LiFePO4/Li2SiO3 composite can enhance its electrochemical performance as a cathode material.

  11. 11Li structural information from inclusive break-up measurements

    Directory of Open Access Journals (Sweden)

    Fernández-García J. P.

    2015-01-01

    Full Text Available Structure information of 11Li halo nucleus has been obtained from the inclusive break-up measurements of the 11Li+208Pb reactions at energies around the Coulomb barrier (Elab = 24.3 and 29.8 MeV. The effective break-up energy and the slope of B(E1 distribution close to the threshold have been extracted from the experimental data.

  12. Stipendiumirahastu ajalooüliõpilastele / Mati Graf

    Index Scriptorium Estoniae

    Graf, Mati, 1939-

    2002-01-01

    5.04.2002 allkirjastasid TPÜ rektor Mati Heidmets ja ajaloo õppetooli prof Mati Graf ning firma BALTECO üks omanikke Enn-Arno Sillari kokkuleppe stipendiumirahastu moodustamise kohta TPÜ ajaloo üliõpilastele. E.-A. Sillari poolt asutatud rahastu eesmärgiks on edendada ajaloouuringuid, makstes stipendiumi teadustöös silma paistnud üliõpilastele ja magistrantidele, ning katta nende teadustööga seotud kulutused

  13. Shipborne LiDAR system for coastal change monitoring

    Science.gov (United States)

    Kim, chang hwan; Park, chang hong; Kim, hyun wook; hyuck Kim, won; Lee, myoung hoon; Park, hyeon yeong

    2016-04-01

    Coastal areas, used as human utilization areas like leisure space, medical care, ports and power plants, etc., are regions that are continuously changing and interconnected with oceans and land and the sea level has risen by about 8cm (1.9mm / yr) due to global warming from 1964 year to 2006 year in Korea. Coastal erosion due to sea-level rise has caused the problem of marine ecosystems and loss of tourism resources, etc. Regular monitoring of coastal erosion is essential at key locations with such volatility. But the survey method of land mobile LiDAR (light detection and ranging) system has much time consuming and many restrictions. For effective monitoring beach erosion, KIOST (Korea Institute of Ocean Science & Technology) has constructed a shipborne mobile LiDAR system. The shipborne mobile LiDAR system comprised a land mobile LiDAR (RIEGL LMS-420i), an INS (inertial navigation system, MAGUS Inertial+), a RTKGPS (LEICA GS15 GS25), and a fixed platform. The shipborne mobile LiDAR system is much more effective than a land mobile LiDAR system in the measuring of fore shore areas without shadow zone. Because the vessel with the shipborne mobile LiDAR system is continuously moved along the shoreline, it is possible to efficiently survey a large area in a relatively short time. Effective monitoring of the changes using the constructed shipborne mobile LiDAR system for seriously eroded coastal areas will be able to contribute to coastal erosion management and response.

  14. Georeferenced LiDAR 3D Vine Plantation Map Generation

    Directory of Open Access Journals (Sweden)

    Meritxell Queraltó

    2011-06-01

    Full Text Available The use of electronic devices for canopy characterization has recently been widely discussed. Among such devices, LiDAR sensors appear to be the most accurate and precise. Information obtained with LiDAR sensors during reading while driving a tractor along a crop row can be managed and transformed into canopy density maps by evaluating the frequency of LiDAR returns. This paper describes a proposed methodology to obtain a georeferenced canopy map by combining the information obtained with LiDAR with that generated using a GPS receiver installed on top of a tractor. Data regarding the velocity of LiDAR measurements and UTM coordinates of each measured point on the canopy were obtained by applying the proposed transformation process. The process allows overlap of the canopy density map generated with the image of the intended measured area using Google Earth®, providing accurate information about the canopy distribution and/or location of damage along the rows. This methodology was applied and tested on different vine varieties and crop stages in two important vine production areas in Spain. The results indicate that the georeferenced information obtained with LiDAR sensors appears to be an interesting tool with the potential to improve crop management processes.

  15. Disordered LiZnVO(4) with a phenacite structure.

    Science.gov (United States)

    Azrour, Mohamed; Elouadi, Brahim; El Ammari, Lahcen

    2010-04-17

    Single crystals of lithium zinc vanadate, LiZnVO(4), were grown by the flux method. The structural type of this vanadate is characterized by a three-dimensional arrangement of tetra-hedra sharing apices in an LiZnVO(4) network. This arrangement contains three different tetra-hedra, namely one [VO(4)] and two disordered mixed-site [Li/ZnO(4)] tetra-hedra. The resulting lattice gives rise to hexa-gonal channels running along the [0001] direction. Both sites in the mixed-site [Li/ZnO(4)] tetra-hedra are occupied by a statistical mixture of lithium and zinc with a 1:1 ratio. Therefore, LiZnVO(4) appears to be the first vanadate known to crystallize with a disordered phenacite structure. Moreover, the resulting values of calculated bond valences (Li = 1.083, Zn = 2.062 and V = 5.185) tend to confirm the structural model.

  16. Nuclear Magnetic Resonance Imaging of Li-ion Battery

    Directory of Open Access Journals (Sweden)

    D. Ohno

    2010-12-01

    Full Text Available Nuclear magnetic resonance (NMR imaging has high sensitivity to proton (1H and lithium (7Li. It is a useful measurement for electrolyte in Li-ion battery. 1H NMR images of lithium ion battery which is composed of LiMn2O4 / LiClO4 + propylene carbonate (PC / Li-metal have been studied. 1H NMR images of electrolyte near cathode material (LiMn2O4 showed anomalous intensity distribution, which was quite inhomogeneous. From NMR images as a function of repetition time (TR, it was concluded that the anomalous intensity distribution was not due to change of relaxation time but an indirect (spatial para-magnetization effect from cathode material. The paramagnetization induced by high magnetic field distorts linearity of magnetic gradient field, leading to apparent intensity variance. This functional image is an easy diagnostic measurement for magnetization of cathode material, which allows the possibility to check uniformity of cathode material and change of magnetization under electrochemical process.

  17. Te/C nanocomposites for Li-Te Secondary Batteries.

    Science.gov (United States)

    Seo, Jeong-Uk; Seong, Gun-Kyu; Park, Cheol-Min

    2015-01-22

    New battery systems having high energy density are actively being researched in order to satisfy the rapidly developing market for longer-lasting mobile electronics and hybrid electric vehicles. Here, we report a new Li-Te secondary battery system with a redox potential of ~1.7 V (vs. Li(+)/Li) adapted on a Li metal anode and an advanced Te/C nanocomposite cathode. Using a simple concept of transforming TeO2 into nanocrystalline Te by mechanical reduction, we designed an advanced, mechanically reduced Te/C nanocomposite electrode material with high energy density (initial discharge/charge: 1088/740 mA h cm(-3)), excellent cyclability (ca. 705 mA h cm(-3) over 100 cycles), and fast rate capability (ca. 550 mA h cm(-3) at 5C rate). The mechanically reduced Te/C nanocomposite electrodes were found to be suitable for use as either the cathode in Li-Te secondary batteries or a high-potential anode in rechargeable Li-ion batteries. We firmly believe that the mechanically reduced Te/C nanocomposite constitutes a breakthrough for the realization and mass production of excellent energy storage systems.

  18. First-principles study of ternary Li-Al-Te compounds under high pressure

    Science.gov (United States)

    Wang, Youchun; Tian, Fubo; Li, Da; Duan, Defang; Xie, Hui; Liu, Bingbing; Zhou, Qiang; Cui, Tian

    2018-02-01

    The ternary Li-Al-Te compounds were investigated by the first-principle evolutionary calculation based on density function theory. Apart from the known structure, I-42d LiAlTe2 and P3m1 LiAlTe2, several new structures were discovered, P-3m1 LiAlTe2, Pnma LiAlTe2, C2/c Li9AlTe2, Immm Li9AlTe2 and P4/mmm Li6AlTe. We determined that the I-42d LiAlTe2 firstly changed to P-3m1 phase at 6 GPa, and then into the Pnma structure at 65 GPa, Pnma phase was stable up at least to 120 GPa. I-42d LiAlTe2 was a pseudo-direct band gap semiconductor, but P-3m1 LiAlT2 was an indirect band gap semiconductor. This may be caused by the pressure effect. Subsequently, it was metallized under pressure. Pnma LiAlTe2 was also metallic at the pressure we studied. C2/c Li9AlTe2 was stable above 4 GPa, then turned into Immm phase at 60 GPa. C2/c Li9AlTe2 was an indirect band gap semiconductor. The results show that P4/mmm Li6AlTe was stable and metallized in the pressure range of 0.7-120 GPa. The calculations of DOS and PDOS indicate that the arrangement of electrons near Fermi energy can be affected by the increase of Li. The calculated ELF results and Bader charge analysis indicate that there was no covalent bond between Al and Te atoms for high-pressure Pnma LiAlTe2, Li9AlTe2 and Li6AlTe. For Li9AlTe2 and Li6AlTe, different from LiAlTe2, Al atoms not connect with Te atoms, but link with Li atoms. The results were further proved by Mulliken population analysis. And the weak covalent bonds between Li and Al atoms stem from the hybridization of Li s and Al p presented in PDOS diagrams. We further deduced that the pressure effect and the increase of Li content may result in the disappearance of Al-Te bonds for Li-Al-Te compound under extreme pressure.

  19. 2012-2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Hoh River Watershed, Washington (Deliveries 1 and 2)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data on the Hoh River watershed survey area for the Puget Sound LiDAR Consortium and the...

  20. Õpetaja professionaalse rolli internaliseerimise hindamine õpetajakoolituse esmaõppe üliõpilaste hulgas / Äli Leijen, Katrin Kullasepp, Aivar Ots

    Index Scriptorium Estoniae

    Leijen, Äli, 1979-

    2013-01-01

    Aineõpetaja magistriõppe üliõpilaste seas läbi viidud uurimusest, milles vaadeldakse, kuidas üliõpilased koordineerivad personaalset ja professionaalset mina-positsiooni erialaste ambivalentsete olukordade kontekstis

  1. CRISTALLISATION DE SOLIDES NON CRISTALLINS DANS LE SYSTEME Li2B2O4 - LiFe5O8

    OpenAIRE

    Chaumont, C.; J. Bernier

    1982-01-01

    Dans le système Li2B2O4 (100-x) - LiFe5O8 x (0,1 < x < 15 %) les composés amorphes préparés par hypertrempe sont métastables et cristallisent par recuit. Le schéma de cristallisation établi pour Li2B2O490 - LiFe5O8 10 est étendu à tout le système. Les anomalies observées pour la température de vitrification TG sont interprétées à l'aide du diagramme Volume/Température/Etat du système. Les écarts à l'idéalité en sont la cause et peuvent être suivis par analyse enthalpiemétrique (ATD ou DSC)....

  2. 2001-2002 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Clallam County, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract with Clallam County. The data covers an area of approximately 524...

  3. 2012 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Chehalis River Watershed Area, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data for the Chehalis River Watershed study area on January 28th, February 2nd-7th,...

  4. 2006 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Eastern Washington and River Corridors

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data in eastern Washington, eastern Oregon, and southern Canada in October and November,...

  5. 2007 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Eastern Washington and River Corridors

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data in eastern Washington, eastern Oregon, and southern Canada in October and November,...

  6. Muusikaüliõpilaste refleksiooni toetamine pilliõppes / Tuulike Kivestu, Äli Leijen, Kadri Steinbach

    Index Scriptorium Estoniae

    Kivestu, Tuulike

    2014-01-01

    Uurimusest, mille eesmärgiks oli selgitada välja, millised on üliõpilaste kogemused refleksioonimudeli rakendamisel ja nende hinnangud refleksiooniülesannete kasulikkusele pillimängu oskuste arendamisel

  7. 2002 Puget Sound LiDAR Consortium (PSLC) Unclassified Topographic LiDAR: Puget Sound Lowlands Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract. The area surveyed is approximately 730 square miles and covers the...

  8. Mechanism of {delta}'-phase formation in Al-Li and Al-Li-Mg systems alloys

    Energy Technology Data Exchange (ETDEWEB)

    Alekseev, A.A.; Lukina, E.A.; Ermolova, M.I. [All-Russian Inst. of Aviation Materials (VIAM), Moscow (Russian Federation); Khokhlatova, L.B.

    2002-07-01

    In the given work the 1424 alloy of Al-Li-Mg system (Al-1.61%Li-5.6%Mg+additions) was investigated in the ageing temperature range from 20 C to 200 C. It is shown the presence of precipitates of the non-equilibrium {delta} (AlLi)-phase. This phase is called as {delta}{sub non}-phase. It was also found a new type of solid solution decomposition in Al-Li-Mg-alloys, presumably, with {beta}'(Al{sub 5}Mg{sub 8})-phase formation. Regions of the presence of new phases are shown an TTT diagram. It was established that in the process of ageing a fine-grained cellular structure is formed around the particles of {delta}{sub non}-phase. The models of {delta}' and {delta}{sub non}-phases precipitates structure were developed. (orig.)

  9. Surface Modification of LiMn2O4 for Lithium Batteries by Nanostructured LiFePO4 Phosphate

    Directory of Open Access Journals (Sweden)

    B. Sadeghi

    2012-01-01

    Full Text Available LiMn2O4 spinel cathode materials have been successfully synthesized by solid-state reaction. Surface of these particles was modified by nanostructured LiFePO4 via sol gel dip coating method. Synthesized products were characterized by thermally analyzed thermogravimetric and differential thermal analysis (TG/DTA, X-ray diffraction (XRD, scanning electron microscopy (SEM, transmission electron microscopy (TEM, and energy dispersive X-ray spectroscopy (EDX. The results of electrochemical tests showed that the charge/discharge capacities improved and charge retention of battery enhanced. This improved electrochemical performance is caused by LiFePO4 phosphate layer on surfaces of LiMn2O4 cathode particles.

  10. Depth profiling Li in electrode materials of lithium ion battery by 7Li(p,γ)8Be and 7Li(p,α)4He nuclear reactions

    Science.gov (United States)

    Sunitha, Y.; Kumar, Sanjiv

    2017-06-01

    A proton induced γ-ray emission method based on 7Li(p,γ)8Be proton capture reaction and a nuclear reaction analysis method involving 7Li(p,α)4He reaction are described for depth profiling Li in the electrode materials, graphite and lithium cobalt oxide for example, of a Li-ion battery. Depth profiling by 7Li(p,γ)8Be reaction is accomplished by the resonance at 441 keV and involves the measurement of 14.6 and 17.6 MeV γ-rays, characteristic of the reaction, by a NaI(Tl) detector. The method has a detection sensitivity of ˜0.2 at% and enables profiling up to a depth ≥20 μm with a resolution of ≥150 nm. The profiling to a fairly large depth is facilitated by the absence of any other resonance up to 1800 keV proton energy. The reaction has substantial off-resonance cross-sections. A procedure is outlined for evaluating the off-resonance yields. Interferences from fluorine and aluminium are major limitation of this depth profiling methodology. The depth profile measurement by 7Li(p,α)4He reaction, on the other hand, utilises 2-3 MeV protons and entails the detection of α-particles at 90° or 150° angles. The reaction exhibits inverse kinematics at 150°. This method, too, suffers interference from fluorine due to the simultaneous occurrence of 19F(p,α)16O reaction. Kinematical considerations show that the interference is minimal at 90° and thus is the recommended angle of detection. The method is endowed with a detection sensitivity of ˜0.1 at%, a depth resolution of ˜100 nm and a probing depth of about 30 μm in the absence and 5-8 μm in the presence of fluorine in the material. Both methods yielded comparable depth profiles of Li in the cathode (lithium cobalt oxide) and the anode (graphite) of a Li-ion battery.

  11. Experimental and computational studies on structural transitions in the LiBH4-LiI pseudobinary system

    DEFF Research Database (Denmark)

    Oguchi, H.; Matsuo, M.; Hummelshøj, Jens Strabo

    2009-01-01

    of the high-temperature [hexagonal, lithium super(fast-)ionic conduction] phase of LiBH4 with x=0.33 and 1.00, and the results also imply the existence of intermediate phases with x=0.07–0.20. The studies are of importance for further development of LiBH4 and the derived hydrides as solid-state electrolytes...

  12. Toward garnet electrolyte–based Li metal batteries: An ultrathin, highly effective, artificial solid-state electrolyte/metallic Li interface

    Science.gov (United States)

    Fu, Kun (Kelvin); Gong, Yunhui; Liu, Boyang; Zhu, Yizhou; Xu, Shaomao; Yao, Yonggang; Luo, Wei; Wang, Chengwei; Lacey, Steven D.; Dai, Jiaqi; Chen, Yanan; Mo, Yifei; Wachsman, Eric; Hu, Liangbing

    2017-01-01

    Solid-state batteries are a promising option toward high energy and power densities due to the use of lithium (Li) metal as an anode. Among all solid electrolyte materials ranging from sulfides to oxides and oxynitrides, cubic garnet–type Li7La3Zr2O12 (LLZO) ceramic electrolytes are superior candidates because of their high ionic conductivity (10−3 to 10−4 S/cm) and good stability against Li metal. However, garnet solid electrolytes generally have poor contact with Li metal, which causes high resistance and uneven current distribution at the interface. To address this challenge, we demonstrate a strategy to engineer the garnet solid electrolyte and the Li metal interface by forming an intermediary Li-metal alloy, which changes the wettability of the garnet surface (lithiophobic to lithiophilic) and reduces the interface resistance by more than an order of magnitude: 950 ohm·cm2 for the pristine garnet/Li and 75 ohm·cm2 for the surface-engineered garnet/Li. Li7La2.75Ca0.25Zr1.75Nb0.25O12 (LLCZN) was selected as the solid-state electrolyte (SSE) in this work because of its low sintering temperature, stabilized cubic garnet phase, and high ionic conductivity. This low area-specific resistance enables a solid-state garnet SSE/Li metal configuration and promotes the development of a hybrid electrolyte system. The hybrid system uses the improved solid-state garnet SSE Li metal anode and a thin liquid electrolyte cathode interfacial layer. This work provides new ways to address the garnet SSE wetting issue against Li and get more stable cell performances based on the hybrid electrolyte system for Li-ion, Li-sulfur, and Li-oxygen batteries toward the next generation of Li metal batteries. PMID:28435874

  13. Toward garnet electrolyte-based Li metal batteries: An ultrathin, highly effective, artificial solid-state electrolyte/metallic Li interface.

    Science.gov (United States)

    Fu, Kun Kelvin; Gong, Yunhui; Liu, Boyang; Zhu, Yizhou; Xu, Shaomao; Yao, Yonggang; Luo, Wei; Wang, Chengwei; Lacey, Steven D; Dai, Jiaqi; Chen, Yanan; Mo, Yifei; Wachsman, Eric; Hu, Liangbing

    2017-04-01

    Solid-state batteries are a promising option toward high energy and power densities due to the use of lithium (Li) metal as an anode. Among all solid electrolyte materials ranging from sulfides to oxides and oxynitrides, cubic garnet-type Li7La3Zr2O12 (LLZO) ceramic electrolytes are superior candidates because of their high ionic conductivity (10(-3) to 10(-4) S/cm) and good stability against Li metal. However, garnet solid electrolytes generally have poor contact with Li metal, which causes high resistance and uneven current distribution at the interface. To address this challenge, we demonstrate a strategy to engineer the garnet solid electrolyte and the Li metal interface by forming an intermediary Li-metal alloy, which changes the wettability of the garnet surface (lithiophobic to lithiophilic) and reduces the interface resistance by more than an order of magnitude: 950 ohm·cm(2) for the pristine garnet/Li and 75 ohm·cm(2) for the surface-engineered garnet/Li. Li7La2.75Ca0.25Zr1.75Nb0.25O12 (LLCZN) was selected as the solid-state electrolyte (SSE) in this work because of its low sintering temperature, stabilized cubic garnet phase, and high ionic conductivity. This low area-specific resistance enables a solid-state garnet SSE/Li metal configuration and promotes the development of a hybrid electrolyte system. The hybrid system uses the improved solid-state garnet SSE Li metal anode and a thin liquid electrolyte cathode interfacial layer. This work provides new ways to address the garnet SSE wetting issue against Li and get more stable cell performances based on the hybrid electrolyte system for Li-ion, Li-sulfur, and Li-oxygen batteries toward the next generation of Li metal batteries.

  14. On the reduction of generalized polylogarithms to Li{sub n} and Li{sub 2,2} and on the evaluation thereof

    Energy Technology Data Exchange (ETDEWEB)

    Frellesvig, Hjalte; Tommasini, Damiano [Institute of Nuclear and Particle Physics, NCSR “Demokritos”,Patriarchou Gregoriou E. & Neapoleos street 27, 15310 Agia Paraskevi (Greece); Wever, Christopher [Institute of Nuclear and Particle Physics, NCSR “Demokritos”,Patriarchou Gregoriou E. & Neapoleos street 27, 15310 Agia Paraskevi (Greece); Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology,Engesserstraße 7, D-76128 Karlsruhe (Germany); Institute for Nuclear Physics (IKP), Karlsruhe Institute of Technology,Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen (Germany)

    2016-03-29

    We give expressions for all generalized polylogarithms up to weight four in terms of the functions log, Li{sub n}, and Li{sub 2,2}, valid for arbitrary complex variables. Furthermore we provide algorithms for manipulation and numerical evaluation of Li{sub n} and Li{sub 2,2}, and add codes in Mathematica and C++ implementing the results. With these results we calculate a number of previously unknown integrals, which we add in appendix C.

  15. Facile Solution Route to Synthesize Nanostructure Li4Ti5O12 for High Rate Li-Ion Battery

    Directory of Open Access Journals (Sweden)

    M. V. Tran

    2016-01-01

    Full Text Available High rate Li-ion batteries have been given great attention during the last decade as a power source for hybrid electric vehicles (HEVs, EVs, etc. due to the highest energy and power density. These lithium batteries required a new design of material structure as well as innovative electrode materials. Among the promising candidates, spinel Li4Ti5O12 has been proposed as a high rate anode to replace graphite anode because of high capacity and a negligible structure change during intercalation of lithium. In this work, we synthesized a spinel Li4Ti5O12 in nanosize by a solution route using LiOH and Ti(OBu4 as precursor. An evaluation of structure and morphology by XRD and SEM exhibited pure spinel phase Li4Ti5O12 and homogenous nanoparticles around 100 nm. In the charge-discharge test, nanospinel Li4Ti5O12 presents excellent discharge capacity 160 mAh/g at rate C/10, as well as good specific capacities of 120, 110, and 100 mAh/g at high rates C, 5C and 10C, respectively.

  16. Systematics of the breakup probability function for {sup 6}Li and {sup 7}Li projectiles

    Energy Technology Data Exchange (ETDEWEB)

    Capurro, O.A., E-mail: capurro@tandar.cnea.gov.ar [Laboratorio TANDAR, Comisión Nacional de Energía Atómica, Av. General Paz 1499, B1650KNA San Martín, Buenos Aires (Argentina); Pacheco, A.J.; Arazi, A. [Laboratorio TANDAR, Comisión Nacional de Energía Atómica, Av. General Paz 1499, B1650KNA San Martín, Buenos Aires (Argentina); CONICET, Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Carnelli, P.F.F. [CONICET, Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Instituto de Investigación e Ingeniería Ambiental, Universidad Nacional de San Martín, 25 de Mayo y Francia, B1650BWA San Martín, Buenos Aires (Argentina); Fernández Niello, J.O. [Laboratorio TANDAR, Comisión Nacional de Energía Atómica, Av. General Paz 1499, B1650KNA San Martín, Buenos Aires (Argentina); CONICET, Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Instituto de Investigación e Ingeniería Ambiental, Universidad Nacional de San Martín, 25 de Mayo y Francia, B1650BWA San Martín, Buenos Aires (Argentina); and others

    2016-01-15

    Experimental non-capture breakup cross sections can be used to determine the probability of projectile and ejectile fragmentation in nuclear reactions involving weakly bound nuclei. Recently, the probability of both type of dissociations has been analyzed in nuclear reactions involving {sup 9}Be projectiles onto various heavy targets at sub-barrier energies. In the present work we extend this kind of systematic analysis to the case of {sup 6}Li and {sup 7}Li projectiles with the purpose of investigating general features of projectile-like breakup probabilities for reactions induced by stable weakly bound nuclei. For that purpose we have obtained the probabilities of projectile and ejectile breakup for a large number of systems, starting from a compilation of the corresponding reported non-capture breakup cross sections. We parametrize the results in accordance with the previous studies for the case of beryllium projectiles, and we discuss their systematic behavior as a function of the projectile, the target mass and the reaction Q-value.

  17. Solid state NMR investigation of a novel Li ion ceramic electrolyte. Li doped BPO sub 4

    CERN Document Server

    Dodd, A J

    2002-01-01

    Over the last decade lithium ion conducting batteries have emerged as the leading technology in battery materials. Their performance, however, is limited to applications below around 50 deg C by the liquid nature of the electrolytes used. In the quest for a solid state electrolyte for use in high temperature applications the nano-crystalline ceramic lithium doped boron phosphate material was developed. Solid state nuclear magnetic resonance (NMR) has been employed to investigate some of the fundamental properties of this material including ionic mobility, defect structure, sample purity and ionic distribution. The findings of this work show that when synthesised at a reaction temperature above 600 deg C the loss of boron from the structure results in the incorporation of vacancy sites about which the Li ions gather in small clusters. Multiple-pulse multiple-quantum spin counting techniques are employed in an effort to count the number of quadrupolar sup 7 Li nuclei interacting in a cluster though it is ultima...

  18. Electrochemical performances of co-substituted (La and Li) LiLa{sub x−y}Li{sub y}Ni{sub 1−x}O{sub 2} cathode materials for rechargeable lithium-ion batteries

    Energy Technology Data Exchange (ETDEWEB)

    Mohan, P.; Paruthimal Kalaignan, G., E-mail: pkalaignan@yahoo.com

    2013-09-01

    Graphical abstract: - Highlights: • LiLa{sub x−y}Li{sub x}Ni{sub 1−x}O{sub 2} powders were prepared by a sol–gel method at 600 °C for 10 h. • LiLa{sub x−y}Li{sub x}Ni{sub 1−x}O{sub 2} powder materials had well defined layer structure, and no impurities. • LiLa{sub 0.10}Li{sub 0.10}Ni{sub 0.80}O{sub 2} crystallite size was reduced compared with those of LiNiO{sub 2}. • Li/LiPF{sub 6}/LiLa{sub x−y}Li{sub x}Ni{sub 1−x}O{sub 2} cells were of high charge/discharge capacity, with columbic efficiency at 25 °C and 45 °C. • LiLa{sub 0.10}Li{sub 0.10}Ni{sub 0.80}O{sub 2} good cyclic stability, rate capability and better 45 °C. - Abstract: Co-substituted LiLa{sub x−y}Li{sub y}Ni{sub 1−x}O{sub 2} cathode materials were synthesized by sol–gel method using aqueous solutions of metal nitrates and tartaric acid as chelating agent at 600 °C for 10 h. The structure and electrochemical properties of the synthesized materials were characterized by using XRD, SEM, EDAX, TEM, cyclic voltammetry, charge/discharge and electrochemical impedance spectroscopy. XRD studies revealed a well defined layer structure and a linear variation of lattice parameters with the addition of lanthanum and lithium confirmed phase pure compounds in a rhombohedral structure. TEM and SEM analysis shows that LiLa{sub 0.10}Li{sub 0.10}Ni{sub 0.80}O{sub 2} has smaller particle size and regular morphological structure with narrow size distribution than those of LiNiO{sub 2}. Variations of dual mixing and hexagonal ordering with the substituted elements have enhanced the charge/discharge capacities at both room (25 °C) and elevated temperatures (45 °C), respectively. LiLa{sub 0.10}Li{sub 0.10}Ni{sub 0.80}O{sub 2} had high charge/discharge capacity, low irreversible capacity and better elevated temperature performance.

  19. ON INFRARED EXCESSES ASSOCIATED WITH Li-RICH K GIANTS

    Energy Technology Data Exchange (ETDEWEB)

    Rebull, Luisa M. [Spitzer Science Center (SSC) and Infrared Science Archive (IRSA), Infrared Processing and Analysis Center - IPAC, 1200 E. California Blvd., California Institute of Technology, Pasadena, CA 91125 (United States); Carlberg, Joleen K. [NASA Goddard Space Flight Center, Code 667, Greenbelt, MD 20771 (United States); Gibbs, John C.; Cashen, Sarah; Datta, Ashwin; Hodgson, Emily; Lince, Megan [Glencoe High School, 2700 NW Glencoe Rd., Hillsboro, OR 97124 (United States); Deeb, J. Elin [Bear Creek High School, 9800 W. Dartmouth Pl., Lakewood, CO 80227 (United States); Larsen, Estefania; Altepeter, Shailyn; Bucksbee, Ethan; Clarke, Matthew [Millard South High School, 14905 Q St., Omaha, NE 68137 (United States); Black, David V., E-mail: rebull@ipac.caltech.edu [Walden School of Liberal Arts, 4230 N. University Ave., Provo, UT 84604 (United States)

    2015-10-15

    Infrared (IR) excesses around K-type red giants (RGs) have previously been discovered using Infrared Astronomy Satellite (IRAS) data, and past studies have suggested a link between RGs with overabundant Li and IR excesses, implying the ejection of circumstellar shells or disks. We revisit the question of IR excesses around RGs using higher spatial resolution IR data, primarily from the Wide-field Infrared Survey Explorer. Our goal was to elucidate the link between three unusual RG properties: fast rotation, enriched Li, and IR excess. Our sample of RGs includes those with previous IR detections, a sample with well-defined rotation and Li abundance measurements with no previous IR measurements, and a large sample of RGs asserted to be Li-rich in the literature; we have 316 targets thought to be K giants, about 40% of which we take to be Li-rich. In 24 cases with previous detections of IR excess at low spatial resolution, we believe that source confusion is playing a role, in that either (a) the source that is bright in the optical is not responsible for the IR flux, or (b) there is more than one source responsible for the IR flux as measured in IRAS. We looked for IR excesses in the remaining sources, identifying 28 that have significant IR excesses by ∼20 μm (with possible excesses for 2 additional sources). There appears to be an intriguing correlation in that the largest IR excesses are all in Li-rich K giants, though very few Li-rich K giants have IR excesses (large or small). These largest IR excesses also tend to be found in the fastest rotators. There is no correlation of IR excess with the carbon isotopic ratio, {sup 12}C/{sup 13}C. IR excesses by 20 μm, though relatively rare, are at least twice as common among our sample of Li-rich K giants. If dust shell production is a common by-product of Li enrichment mechanisms, these observations suggest that the IR excess stage is very short-lived, which is supported by theoretical calculations. Conversely, the

  20. Pebble fabrication of super advanced tritium breeders using a solid solution of Li2+xTiO3+y with Li2ZrO3

    Directory of Open Access Journals (Sweden)

    Tsuyoshi Hoshino

    2016-12-01

    Full Text Available Lithium titanate with excess lithium (Li2+xTiO3+y is one of the most promising candidates among advanced tritium breeders for demonstration power plant reactors because of its good tritium release characteristics. However, the tritium breeding ratio (TBR of Li2+xTiO3+y is smaller than that of e.g., Li2O or Li8TiO6 because of its lower Li density. Therefore, new Li-containing ceramic composites with both high stability and high Li density have been developed. Thus, this study focused on the development of a solid solution with a new characteristic. The solid-solution pebbles of Li2+xTiO3+y with Li2ZrO3 (Li2+x(Ti,ZrO3+y, designated as LTZO, were fabricated by an emulsion method. The X-ray diffraction patterns of sintered LTZO pebbles are approximately the same as those of Li2+xTiO3+y pebbles, and no peaks attributable to Li2ZrO3 are observed. These results demonstrate that LTZO pebbles are not a two-phase material but rather a solid solution. Furthermore, LTZO pebbles were easily sintered under air. Thus, the LTZO solid solution is a candidate breeder material for super advanced (SA tritium breeders.

  1. Evaluation of the relative thermoluminescence efficiency of LiF:Mg,Ti and LiF:Mg,Cu,P TL detectors to low-energy heavy ions

    DEFF Research Database (Denmark)

    Gieszczyk, W.; Bilski, P.; Olko, P.

    2013-01-01

    The most popular types of LiF-based thermoluminescent (TL) detectors, LiF:Mg,Ti (MTS-N) and LiF:Mg,Cu,P (MCP-N), have been investigated, with respect to their dose (fluence) response and relative TL efficiency to different ion species. The detectors were irradiated using the nitrogen, iron, krypton...

  2. Characterization of Li4Ti5O12 and LiMn2O4 spinel materials treated with aqueous acidic solutions

    NARCIS (Netherlands)

    Simon, D.R.

    2007-01-01

    In this thesis an investigation of two spinel materials, Li4Ti5O12 and LiMn2O4 used for Li-ion battery applications is performed interms of formation and reactivity towards acidic solutions. Subsequent characterizations such as structural, magnetic, chemical, and electrochemical characterizations

  3. Recent advances in understanding of the mechanism and control of Li2O2 formation in aprotic Li-O2 batteries.

    Science.gov (United States)

    Lyu, Zhiyang; Zhou, Yin; Dai, Wenrui; Cui, Xinhang; Lai, Min; Wang, Li; Huo, Fengwei; Huang, Wei; Hu, Zheng; Chen, Wei

    2017-10-02

    Aprotic Li-O2 batteries represent promising alternative devices for electrical energy storage owing to their extremely high energy densities. Upon discharge, insulating solid Li2O2 forms on cathode surfaces, which is usually governed by two growth models, namely the solution model and the surface model. These Li2O2 growth models can largely determine the battery performances such as the discharge capacity, round-trip efficiency and cycling stability. Understanding the Li2O2 formation mechanism and controlling its growth are essential to fully realize the technological potential of Li-O2 batteries. In this review, we overview the recent advances in understanding the electrochemical and chemical processes that occur during the Li2O2 formation. In the beginning, the oxygen reduction mechanisms, the identification of O2(-)/LiO2 intermediates, and their influence on the Li2O2 morphology have been discussed. The effects of the discharge current density and potential on the Li2O2 growth model have been subsequently reviewed. Special focus is then given to the prominent strategies, including the electrolyte-mediated strategy and the cathode-catalyst-tailoring strategy, for controlling the Li2O2 growth pathways. Finally, we conclude by discussing the profound implications of controlling Li2O2 formation for further development in Li-O2 batteries.

  4. Thermochemical properties of Li 6Zr 2O 7(s) by a mass-spectrometric Knudsen effusion method

    Science.gov (United States)

    Kato, Yoshinari; Asano, Mitsuru; Harada, Toshio; Mizutani, Yasuo

    1993-12-01

    Partial pressures of Li(g), LiO(g), Li 2O(g), Li 2O 2(g), Li 3O(g) and O 2(g) over Li 6Zr 2O 7(s) are studied by a mass-spectrometric Knudsen effusion method. From enthalpies of reaction for gas-solid equilibria, the enthalpies of formation for Li 6Zr 2O 7(s) are determined to be ΔfH°298( Li6Zr2O7, s) = -(4092.5 ± 14.2) kJmol-1 from the elements and ΔfoxH°298( Li6Zr2O7, s) = -(101.4 ± 15.9) kJmol-1 from the constituent oxides, Li 2O(s) and ZrO 2(s). Over various lithiumcontaining complex oxides, the partial pressures of Li 2O(g) decrease as follows: Li 2O > Li 5AlO 4 ⋍ Li 4TiO 4 ⋍ Li 8PbO 6 > Li 6Zr 2O 7 > Li 2SnO 3 > Li 4SiO 4 > Li 2TiO 3 ⋍ Li 2ZrO 3 > LiAlO 2 = Li 2SiO 3 > LiNbO 3. From the results of the partial pressures of Li 2O(g), thermodynamic activities and activity coefficients of the pseudo Li 2O component are discussed in relation to the molar fraction of Li 2O in each binary Li2O- MOx system (M = Al, Si, Ti and Zr).

  5. LiDAR Vegetation Investigation and Signature Analysis System (LVISA)

    Science.gov (United States)

    Höfle, Bernhard; Koenig, Kristina; Griesbaum, Luisa; Kiefer, Andreas; Hämmerle, Martin; Eitel, Jan; Koma, Zsófia

    2015-04-01

    Our physical environment undergoes constant changes in space and time with strongly varying triggers, frequencies, and magnitudes. Monitoring these environmental changes is crucial to improve our scientific understanding of complex human-environmental interactions and helps us to respond to environmental change by adaptation or mitigation. The three-dimensional (3D) description of the Earth surface features and the detailed monitoring of surface processes using 3D spatial data have gained increasing attention within the last decades, such as in climate change research (e.g., glacier retreat), carbon sequestration (e.g., forest biomass monitoring), precision agriculture and natural hazard management. In all those areas, 3D data have helped to improve our process understanding by allowing quantifying the structural properties of earth surface features and their changes over time. This advancement has been fostered by technological developments and increased availability of 3D sensing systems. In particular, LiDAR (light detection and ranging) technology, also referred to as laser scanning, has made significant progress and has evolved into an operational tool in environmental research and geosciences. The main result of LiDAR measurements is a highly spatially resolved 3D point cloud. Each point within the LiDAR point cloud has a XYZ coordinate associated with it and often additional information such as the strength of the returned backscatter. The point cloud provided by LiDAR contains rich geospatial, structural, and potentially biochemical information about the surveyed objects. To deal with the inherently unorganized datasets and the large data volume (frequently millions of XYZ coordinates) of LiDAR datasets, a multitude of algorithms for automatic 3D object detection (e.g., of single trees) and physical surface description (e.g., biomass) have been developed. However, so far the exchange of datasets and approaches (i.e., extraction algorithms) among LiDAR users

  6. High performance anode for advanced Li batteries

    Energy Technology Data Exchange (ETDEWEB)

    Lake, Carla [Applied Sciences, Inc., Cedarville, OH (United States)

    2015-11-02

    The overall objective of this Phase I SBIR effort was to advance the manufacturing technology for ASI’s Si-CNF high-performance anode by creating a framework for large volume production and utilization of low-cost Si-coated carbon nanofibers (Si-CNF) for the battery industry. This project explores the use of nano-structured silicon which is deposited on a nano-scale carbon filament to achieve the benefits of high cycle life and high charge capacity without the consequent fading of, or failure in the capacity resulting from stress-induced fracturing of the Si particles and de-coupling from the electrode. ASI’s patented coating process distinguishes itself from others, in that it is highly reproducible, readily scalable and results in a Si-CNF composite structure containing 25-30% silicon, with a compositionally graded interface at the Si-CNF interface that significantly improve cycling stability and enhances adhesion of silicon to the carbon fiber support. In Phase I, the team demonstrated the production of the Si-CNF anode material can successfully be transitioned from a static bench-scale reactor into a fluidized bed reactor. In addition, ASI made significant progress in the development of low cost, quick testing methods which can be performed on silicon coated CNFs as a means of quality control. To date, weight change, density, and cycling performance were the key metrics used to validate the high performance anode material. Under this effort, ASI made strides to establish a quality control protocol for the large volume production of Si-CNFs and has identified several key technical thrusts for future work. Using the results of this Phase I effort as a foundation, ASI has defined a path forward to commercialize and deliver high volume and low-cost production of SI-CNF material for anodes in Li-ion batteries.

  7. UAS TOPOGRAPHIC MAPPING WITH VELODYNE LiDAR SENSOR

    Directory of Open Access Journals (Sweden)

    G. Jozkow

    2016-06-01

    Full Text Available Unmanned Aerial System (UAS technology is nowadays willingly used in small area topographic mapping due to low costs and good quality of derived products. Since cameras typically used with UAS have some limitations, e.g. cannot penetrate the vegetation, LiDAR sensors are increasingly getting attention in UAS mapping. Sensor developments reached the point when their costs and size suit the UAS platform, though, LiDAR UAS is still an emerging technology. One issue related to using LiDAR sensors on UAS is the limited performance of the navigation sensors used on UAS platforms. Therefore, various hardware and software solutions are investigated to increase the quality of UAS LiDAR point clouds. This work analyses several aspects of the UAS LiDAR point cloud generation performance based on UAS flights conducted with the Velodyne laser scanner and cameras. The attention was primarily paid to the trajectory reconstruction performance that is essential for accurate point cloud georeferencing. Since the navigation sensors, especially Inertial Measurement Units (IMUs, may not be of sufficient performance, the estimated camera poses could allow to increase the robustness of the estimated trajectory, and subsequently, the accuracy of the point cloud. The accuracy of the final UAS LiDAR point cloud was evaluated on the basis of the generated DSM, including comparison with point clouds obtained from dense image matching. The results showed the need for more investigation on MEMS IMU sensors used for UAS trajectory reconstruction. The accuracy of the UAS LiDAR point cloud, though lower than for point cloud obtained from images, may be still sufficient for certain mapping applications where the optical imagery is not useful.

  8. Synthesis of LiBOB Fine Powder to Increase Solubility

    Directory of Open Access Journals (Sweden)

    Etty Marti Wigayati

    2017-04-01

    Full Text Available Lithium bis (oxalate borate or LiBOB compound has captured interest of researchers, because it is potentially viable to be used as electrolyte salt in lithium-ion battery system. This compound is easy to synthesize and considered to be more environmentally friendly compared to conventional electrolyte salt because LiBOB does not contain halogen element. This research focused on the synthesis of LiBOB fine powder, which main purpose is improving LiBOB salt solubility in liquid electrolyte solution. This will aid the ion transfer between electrodes which in turn will increase the electrolyte performance. Solid state reaction was employed in this experiment. Synthesis of LiBOB compound was performed by reacting oxalic acid dihydrate, lithium hydroxide monohydrate, and boric acid. The resulting powder was then processed into fine powder using ball milling technique with varying milling time (0, 6, 10, and 13 hour. Microstructure of the sample was then analyzed to obtain information regarding phase formation, functional groups, grain surface morphology, surface area, pore volume, solubility, and ionic conductivity. The analysis shown that LiBOB and LiBOB hydrate phase was formed during the reaction, there was no changed in existing phase during milling process, crystallinity index was shifted to lower value but there was no difference in functional groups. Highest value in surface area was found to be 83.11 m2/g, with pore volume of 1.21311e+02 A at 10 hours milling. Smaller powder size resulted in higher solubility, unfortunately the ionic conductivity was found to be decreased.

  9. Long term stability of Li-S batteries using high concentration lithium nitrate electrolytes

    Energy Technology Data Exchange (ETDEWEB)

    Adams, Brian DG; Carino, Emily V.; Connell, Justin G.; Han, Kee Sung; Cao, Ruiguo; Chen, Junzheng; Zheng, Jianming; Li, Qiuyan; Mueller, Karl T.; Henderson, Wesley A.; Zhang, Jiguang

    2017-10-01

    Lithium-sulfur (Li-S) battery is a very promising candidate for the next generation of energy storage systems required for electrical vehicles and grid energy storage applications due to its very high theoretical specific energy (2500 W h kg-1). However, the low coulombic efficiency (CE) during repeated Li plating/stripping of these processes have limited practical application of rechargeable Li-S batteries. In this work, a new electrolyte system based on high concentration of LiNO3 in diglyme solvent is developed which enables high CE of Li metal plating/stripping and high stability of Li anode in the sulfur containing electrolyte. Tailoring of electrolyte properties for the Li negative electrode has proven to be a successful strategy for improving the capacity retention and cycle life of Li-S batteries. This electrolyte provides a CE for Li plating/stripping of greater than 99% for over 200 cycles. In contrast, Li metal cycles for only less than 35 cycles at high CE in the standard 1 M LiTFSI + 2wt% LiNO3 in DOL:DME electrolyte under the same conditions. The stable Li metal anode enabled by the new electrolyte may accelerate the applications of high energy density Li-S batteries in both electrical vehicles and large-scale grid energy storage markets.

  10. Long term stability of Li-S batteries using high concentration lithium nitrate electrolytes

    Energy Technology Data Exchange (ETDEWEB)

    Adams, Brian D.; Carino, Emily V.; Connell, Justin G.; Han, Kee Sung; Cao, Ruiguo; Chen, Junzheng; Zheng, Jianming; Li, Qiuyan; Mueller, Karl T.; Henderson, Wesley A.; Zhang, Ji-Guang

    2017-10-01

    The lithium-sulfur (Li-S) battery is a very promising candidate for the next generation of energy storage systems required for electrical vehicles and grid energy storage applications due to its very high theoretical specific energy (2500 W h kg(-1)). However, low Coulombic efficiency (CE) during repeated Li metal plating/stripping has severely limited the practical application of rechargeable Li-S batteries. In this work, a new electrolyte system based on a high concentration of LiNO3 in diglyme (G2) solvent is developed which enables an exceptionally high CE for Li metal plating/stripping and thus high stability of the Li anode in the sulfur-containing electrolyte. The tailoring of electrolyte properties for the Li anode has proven to be a highly successful strategy for improving the capacity retention and cycle life of Li-S batteries. This electrolyte provides a CE of greater than 99% for over 200 cycles of Li plating/stripping. In contrast, the Li anode cycles for less than 35 cycles (with a high CE) in the state-of-the-art 1 M LiTFSI + 0.3 M LiNO3 in 1,3-dioxolane: 1,2-dimethoxyethane (DOL:DME) electrolyte under the same conditions. The stable Li anode enabled by the new electrolyte may accelerate the applications of high energy density Li-S batteries in both electrical vehicles and large-scale grid energy storage markets.

  11. LiDAR point classification based on sparse representation

    Science.gov (United States)

    Li, Nan; Pfeifer, Norbert; Liu, Chun

    2017-04-01

    In order to combine the initial spatial structure and features of LiDAR data for accurate classification. The LiDAR data is represented as a 4-order tensor. Sparse representation for classification(SRC) method is used for LiDAR tensor classification. It turns out SRC need only a few of training samples from each class, meanwhile can achieve good classification result. Multiple features are extracted from raw LiDAR points to generate a high-dimensional vector at each point. Then the LiDAR tensor is built by the spatial distribution and feature vectors of the point neighborhood. The entries of LiDAR tensor are accessed via four indexes. Each index is called mode: three spatial modes in direction X ,Y ,Z and one feature mode. Sparse representation for classification(SRC) method is proposed in this paper. The sparsity algorithm is to find the best represent the test sample by sparse linear combination of training samples from a dictionary. To explore the sparsity of LiDAR tensor, the tucker decomposition is used. It decomposes a tensor into a core tensor multiplied by a matrix along each mode. Those matrices could be considered as the principal components in each mode. The entries of core tensor show the level of interaction between the different components. Therefore, the LiDAR tensor can be approximately represented by a sparse tensor multiplied by a matrix selected from a dictionary along each mode. The matrices decomposed from training samples are arranged as initial elements in the dictionary. By dictionary learning, a reconstructive and discriminative structure dictionary along each mode is built. The overall structure dictionary composes of class-specified sub-dictionaries. Then the sparse core tensor is calculated by tensor OMP(Orthogonal Matching Pursuit) method based on dictionaries along each mode. It is expected that original tensor should be well recovered by sub-dictionary associated with relevant class, while entries in the sparse tensor associated with

  12. Electrical conductivity in Li2O2 and its role in determining capacity limitations in non-aqueous Li-O2 batteries

    DEFF Research Database (Denmark)

    Viswanathan, V.; Thygesen, Kristian Sommer; Hummelshøj, J.S.

    2011-01-01

    Non-aqueous Li-air or Li-O2 cells show considerable promise as a very high energy density battery couple. Such cells, however, show sudden death at capacities far below their theoretical capacity and this, among other problems, limits their practicality. In this paper, we show that this sudden...... death arises from limited charge transport through the growing Li 2O2 film to the Li2O2-electrolyte interface, and this limitation defines a critical film thickness, above which it is not possible to support electrochemistry at the Li2O 2-electrolyte interface. We report both electrochemical experiments...

  13. Lithium intercalation into layered LiMnO2

    DEFF Research Database (Denmark)

    Vitins, G.; West, Keld

    1997-01-01

    Recently Armstrong and Bruce(1) reported a layered modification of lithium manganese oxide, LiMnO2, isostructural with LiCoO2. LiMnO2 obtained by ion exchange from alpha-NaMnO2 synthesized in air is characterized by x-ray diffraction and by electrochemical insertion and extraction of lithium...... in a series of voltage ranges between 1.5 and 4.5 V relative to a lithium electrode. During cycling voltage plateaus at 3.0 and 4.0 V vs. Li develop, indicating that the material is converted from its original layered structure to a spinel structure. This finding is confirmed by x-ray diffraction. Contrary...... to expectations based on thermodynamics, insertion of larger amounts of lithium leads to a more complete conversion. We suggest that a relatively high mobility of manganese leaves Li and Mn randomly distributed in the close-packed oxygen lattice after a deep discharge. This isotropic Mn distribution can...

  14. High Performance Cathodes for Li-Air Batteries

    Energy Technology Data Exchange (ETDEWEB)

    Xing, Yangchuan

    2013-08-22

    The overall objective of this project was to develop and fabricate a multifunctional cathode with high activities in acidic electrolytes for the oxygen reduction and evolution reactions for Li-air batteries. It should enable the development of Li-air batteries that operate on hybrid electrolytes, with acidic catholytes in particular. The use of hybrid electrolytes eliminates the problems of lithium reaction with water and of lithium oxide deposition in the cathode with sole organic electrolytes. The use of acid electrolytes can eliminate carbonate formation inside the cathode, making air breathing Li-air batteries viable. The tasks of the project were focused on developing hierarchical cathode structures and bifunctional catalysts. Development and testing of a prototype hybrid Li-air battery were also conducted. We succeeded in developing a hierarchical cathode structure and an effective bifunctional catalyst. We accomplished integrating the cathode with existing anode technologies and made a pouch prototype Li-air battery using sulfuric acid as catholyte. The battery cathodes contain a nanoscale multilayer structure made with carbon nanotubes and nanofibers. The structure was demonstrated to improve battery performance substantially. The bifunctional catalyst developed contains a conductive oxide support with ultra-low loading of platinum and iridium oxides. The work performed in this project has been documented in seven peer reviewed journal publications, five conference presentations, and filing of two U.S. patents. Technical details have been documented in the quarterly reports to DOE during the course of the project.

  15. Waveform LiDAR across forest biomass gradients

    Science.gov (United States)

    Montesano, P. M.; Nelson, R. F.; Dubayah, R.; Sun, G.; Ranson, J.

    2011-12-01

    Detailed information on the quantity and distribution of aboveground biomass (AGB) is needed to understand how it varies across space and changes over time. Waveform LiDAR data is routinely used to derive the heights of scattering elements in each illuminated footprint, and the vertical structure of vegetation is related to AGB. Changes in LiDAR waveforms across vegetation structure gradients can demonstrate instrument sensitivity to land cover transitions. A close examination of LiDAR waveforms in footprints across a forest gradient can provide new insight into the relationship of vegetation structure and forest AGB. In this study we use field measurements of individual trees within Laser Vegetation Imaging Sensor (LVIS) footprints along transects crossing forest to non-forest gradients to examine changes in LVIS waveform characteristics at sites with low (LVIS waveforms to detect the forest AGB interval along a forest - non-forest transition in which the LVIS waveform lose the ability to discern differences in AGB. Our results help identify the lower end the forest biomass range that a ~20m footprint waveform LiDAR can detect, which can help infer accumulation of biomass after disturbances and during forest expansion, and which can guide the use of LiDAR within a multi-sensor fusion biomass mapping approach.

  16. A Study on Factors Affecting Airborne LiDAR Penetration

    Directory of Open Access Journals (Sweden)

    Wei-Chen Hsu

    2015-01-01

    Full Text Available This study uses data from different periods, areas and parameters of airborne LiDAR (light detection and ranging surveys to understand the factors that influence airborne LiDAR penetration rate. A discussion is presented on the relationships between these factors and LiDAR penetration rate. The results show that the flight height above ground level (AGL does not have any relationship with the penetration rate. There are some factors that should have larger influence. For example, the laser is affected by a wet ground surface by reducing the number of return echoes. The field of view (FOV has a slightly negative correlation with the penetration rate, which indicates that the laser incidence angle close to zero should achieve the best penetration. The vegetation cover rate also shows a negative correlation with the penetration rate, thus bare ground and reduced vegetation in the aftermath of a typhoon also cause high penetration rate. More return echoes could be extracted from the full-waveform system, thereby effectively improving the penetration rate. This study shows that full-waveform LiDAR is an effective method for increasing the number of surface reflected echoes. This study suggests avoiding LiDAR survey employment directly following precipitation to prevent laser echo reduction.

  17. {sup 10}Li low-lying resonances populated by one-neutron transfer

    Energy Technology Data Exchange (ETDEWEB)

    Cavallaro, M., E-mail: manuela.cavallaro@lns.infn.it; Agodi, C.; Carbone, D.; Cunsolo, A. [INFN, Laboratori Nazionali del Sud (Italy); De Napoli, M. [INFN, Sezione di Catania (Italy); Cappuzzello, F.; Bondì, M. [INFN, Laboratori Nazionali del Sud (Italy); Dipartimento di Fisica e Astronomia, Università di Catania (Italy); Davids, B.; Galinski, N.; Ruiz, C. [TRIUMF, Vancouver (Canada); Davinson, T.; Sanetullaev, A. [Department of Physics and Astronomy, University of Edinburgh (United Kingdom); Foti, A. [INFN, Sezione di Catania (Italy); Dipartimento di Fisica e Astronomia, Università di Catania (Italy); Kanungo, R. [Saint Mary’s University (Canada); Lenske, H. [Institut fur Theoretische Physik, Universitat Gießen (Germany); Orrigo, S. E. A. [Instituto de Física Corpuscular, CSIC-Universidad de Valencia (Spain)

    2015-10-15

    The {sup 9}Li + {sup 2}H → {sup 10}Li + {sup 1}H one-neutron transfer reaction has been performed at 100 MeV incident energy at TRIUMF using a {sup 9}Li beam delivered by the ISAC-II facility. A setup based on double-sided silicon strip detectors has been used in order to detect and identify the outgoing {sup 9}Li produced by the {sup 10}Li breakup at forward angles and the recoil protons emitted at backward angles. The {sup 10}Li low-lying resonances, whose energies, widths and configurations are still unclear, have been populated with significant statistics.

  18. Neutron Fading Characteristics of Copper Doped Lithium Fluoride (LiF: MCP) Thermoluminescent Dosimeters (TLDs)

    Science.gov (United States)

    2008-05-21

    discovery came the discovery of . radioactivity by Henri Becquerel, and radium by Marie and Pierre Curie. By 1896, the deleterious effects of radiation...Mg: Ti or LiF: MT), the Harshaw Chemical Company produced a commercial LiF: MT phosphor known as TLD-100 and its isotopic variants, TLD-600...Typically J3/y use TL-detectors that are 99.93% Li-7 and neutron TL- detectors are 95.6% Li-6. LiF has an additional advantage. The isotope Li-6 has a

  19. Dopant occupancy and exposure energy in Hf:Nd:LiNbO3 crystal as a function of [Li]/[Nb] ratios

    Science.gov (United States)

    Dai, Li; Liu, Chunrui; Han, Xianbo; Yan, Zhehua; Tan, Chao; Wang, Luping; Xu, Yuheng

    2017-09-01

    A series of Hf: Nd: LiNbO3 crystals with various [Li]/[Nb] ratios ([Li]/[Nb] = 0.94, 1.05, 1.20, 1.38) in the melt were grown by conventional Czochralski technique. The distribution coefficients of Hf4+ and Nd3+ ions were recorded by an inductively coupled plasma-atomic emission spectrometer (ICP-AES). The effective distribution coefficient of Hf4+ is reduced and that of Nd3+ is increased with the increase of [Li]/[Nb] ratio in the melts. In all cases, the effective distribution coefficients is less than 1. The IR transmission spectroscopy of the Hf: Nd: LiNbO3 crystals were measured, getting the results that Hf: Yb: Ho: LiNbO3 crystals with 1.05 [Li]/[Nb] ratios was the stoichiometric. The optical damage resistance ability of Hf:Nd:LiNbO3 crystals were studied by light-induced scattering exposure energy flux threshold method and it increases with the increasing of [Li]/[Nb] ratios. When the [Li]/[Nb] ratio is 1.38 in the melt (the sample 4#), the exposure energy achieves 687.35 J/cm2, approximately 441 folds than that of the sample 1# ([Li]/[Nb] = 0.94) in magnitude.

  20. Phase equilibria in the Li-Ti-O system and physical properties of Li sub 2 TiO sub 3

    CERN Document Server

    Kleykamp, H

    2002-01-01

    The phase equilibria of the pseudo-binary Li sub 2 O-TiO sub 2 system and the stoichiometry shift of Li sub 2 TiO sub 3 during the Li transmutation process are investigated. The structural properties, the thermal expansion, enthalpy, heat capacity, enthalpy of transformation and melting, thermal conductivity and the vapourisation behaviour of Li sub 2 TiO sub 3 are assessed. The ternary Li-Ti-O system is treated with emphasis to the characteristic of Li sub 2 TiO sub 3 under reducing conditions. The phase is reduced to LiTiO sub 2 with the Ti valence +3 due to its transition metal character.