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Sample records for hui li stella

  1. STELLA comes into operation

    CERN Multimedia

    1980-01-01

    The photo shows the 3 metre diameter 11/14 GHz antenna on Bld. 513 for data transmission via the OTS satellite in the STELLA project (see Annual Report 1979 p. 88, Fig. 3). Mervyn Hine and Ben Segal stand on the left.

  2. Teenuste disainist / Stella Soomlais

    Index Scriptorium Estoniae

    Soomlais, Stella

    2010-01-01

    Disainer Stella Soomlais teenuste disaini (service design) taustast maailma mastaabis, mõiste olemusest ja teema laiaulatuslikuma käsitluse vajadusest. Alates 2009. aastast saab teenusedisaini õppida ka Eestis. TÜ Pärnu kolledž pakub ärijuhtimise magistriõpet spetsialiseerumisega teenuste disainile

  3. Teenuste disainist / Stella Soomlais

    Index Scriptorium Estoniae

    Soomlais, Stella

    2010-01-01

    Disainer Stella Soomlais teenuste disaini (service design) taustast maailma mastaabis, mõiste olemusest ja teema laiaulatuslikuma käsitluse vajadusest. Alates 2009. aastast saab teenusedisaini õppida ka Eestis. TÜ Pärnu kolledž pakub ärijuhtimise magistriõpet spetsialiseerumisega teenuste disainile

  4. Stella Salumaa: ilma hea loota pole head animatsiooni / üles kirjutanud Mart Niineste

    Index Scriptorium Estoniae

    Salumaa, Stella, 1985-

    2011-01-01

    Animaator Stella Salumaa oma huvist kunsti ja animatsiooni vastu, vahetusüliõpilasena Prahas FAMU-s õppimisest, ideede leidmisest, filmi sõnumist, festivalidel osalemisest. Andmeid Stella Salumaa elukäigu ja tööde kohta

  5. Stella Salumaa: ilma hea loota pole head animatsiooni / üles kirjutanud Mart Niineste

    Index Scriptorium Estoniae

    Salumaa, Stella, 1985-

    2011-01-01

    Animaator Stella Salumaa oma huvist kunsti ja animatsiooni vastu, vahetusüliõpilasena Prahas FAMU-s õppimisest, ideede leidmisest, filmi sõnumist, festivalidel osalemisest. Andmeid Stella Salumaa elukäigu ja tööde kohta

  6. Installing the antenna for STELLA

    CERN Multimedia

    1979-01-01

    The 3 metre diameter antenna for the STELLA satellite communication project is lowered into position on the roof of the Computer Building (see Weekly Bulletin 48/79 and CERN Courier 19 (1979) 444). STELLA stands for Satellite Transmission Experiment Linking Laboratories.

  7. 中央红军会理攻坚战述论%Presentation and Discussion on the Battle of the Central Red Army in Hui-li County

    Institute of Scientific and Technical Information of China (English)

    刘财富; 景志明

    2011-01-01

    During the Long March period,the battle of the Central Red Army in Hui-li county of Si-chuan province was an important one.Because casualties were too serious,so many criticisms occurred in the Party or the Red Army.Based on the relevant historical documents,the author thinks the military action taken by the Red Army in Hui-li county had favorable and unfavorable factors.Though the battle didn’t win,it still had positive significance in which the Red Army went north rapidly and broke though the Da Du-he river defence set by the army of Kuomingtang.%会理攻坚战是中央红军长征在四川时的一场重要战斗。因红军伤亡过大且攻城失利,所以当时党内军内非议颇多。本文通过相关史料的梳理,分析红军攻城的有利与不利因素,从而说明这次战斗的失利对于中央红军迅速北上并突破国民党大渡河防线仍有积极的影响。

  8. Stella Veber - Eesti õiguskaitse proovikivi / Stella Veber ; interv. Kalle Muuli

    Index Scriptorium Estoniae

    Veber, Stella

    2000-01-01

    Tšetšeeni kuritegeliku rühmituse väidetava juhi Harun Dikajevi venna abikaasa Stella Veber enda kinnitamata jätmisest Tallinna abiprokuröri ametikohale. Kommenteerivad justiitsminister Märt Rask, riigi peaprokurör Raivo Sepp ja riigiprokurör Heino Tõnismägi

  9. Stella Veber - Eesti õiguskaitse proovikivi / Stella Veber ; interv. Kalle Muuli

    Index Scriptorium Estoniae

    Veber, Stella

    2000-01-01

    Tšetšeeni kuritegeliku rühmituse väidetava juhi Harun Dikajevi venna abikaasa Stella Veber enda kinnitamata jätmisest Tallinna abiprokuröri ametikohale. Kommenteerivad justiitsminister Märt Rask, riigi peaprokurör Raivo Sepp ja riigiprokurör Heino Tõnismägi

  10. The STELLA Robotic Observatory on Tenerife

    Directory of Open Access Journals (Sweden)

    Klaus G. Strassmeier

    2010-01-01

    Full Text Available The Astrophysical Institute Potsdam (AIP and the Instituto de Astrofísica de Canarias (IAC inaugurated the robotic telescopes STELLA-I and STELLA-II (STELLar Activity on Tenerife on May 18, 2006. The observatory is located on the Izaña ridge at an elevation of 2400 m near the German Vacuum Tower Telescope. STELLA consists of two 1.2 m alt-az telescopes. One telescope fiber feeds a bench-mounted high-resolution echelle spectrograph while the other telescope feeds a wide-field imaging photometer. Both scopes work autonomously by means of artificial intelligence. Not only that the telescopes are automated, but the entire observatory operates like a robot, and does not require any human presence on site.

  11. Search for rare nuclear decays with HPGe detectors at the STELLA facility of the LNGS

    Energy Technology Data Exchange (ETDEWEB)

    Belli, P.; Di Marco, A. [INFN, Sezione di Roma Tor Vergata, Rome (Italy); Bernabei, R.; D' Angelo, S. [INFN, Sezione di Roma Tor Vergata, Rome, Italy and Dipartimento di Fisica, Università di Roma Tor Vergata, Rome (Italy); Cappella, F.; D' Angelo, A.; Incicchitti, A. [INFN, Sezione di Roma La Sapienza, Rome, Italy and Dipartimento di Fisica, Università di Roma La Sapienza, Rome (Italy); Cerulli, R.; Di Vacri, M. L.; Laubenstein, M.; Nisi, S. [INFN, Laboratori Nazionali del Gran Sasso, Assergi (AQ) (Italy); Danevich, F. A.; Kobychev, V. V.; Poda, D. V.; Tretyak, V. I. [Institute for Nuclear Research, Kyiv (Ukraine); Kovtun, G. P.; Kovtun, N. G.; Shcherban, A. P.; Solopikhin, D. A. [Kharkiv Institute of Physics and Technology, Kharkiv (Ukraine); Polischuk, O. G. [INFN, Sezione di Roma La Sapienza, Rome, Italy and Institute for Nuclear Research, Kyiv (Ukraine); and others

    2013-12-30

    Results on the search for rare nuclear decays with the ultra low background facility STELLA at the LNGS using gamma ray spectrometry are presented. In particular, the best T{sub 1/2} limits were obtained for double beta processes in {sup 96}Ru and {sup 104}Ru. Several isotopes, which potentially decay through different 2β channels, including also possible resonant double electron captures, were investigated for the first time ({sup 156}Dy, {sup 158}Dy, {sup 184}Os, {sup 192}Os, {sup 190}Pt, {sup 198}Pt). Search for resonant absorption of solar {sup 7}Li axions in a LiF crystal gave the best limit for the mass of {sup 7}Li axions (< 8.6 keV). Rare alpha decay of {sup 190}Pt to the first excited level of {sup 186}Os(E{sub exc} = 137.2keV) was observed for the first time.

  12. Search for Rare Nuclear Decays with HPGe Detectors at the STELLA Facility of the LNGS

    CERN Document Server

    Belli, P; Cappella, F; Cerulli, R; Danevich, F A; d'Angelo, A; d'Angelo, S; Di Marco, A; Di Vacri, M L; Incicchitti, A; Kovtun, G P; Kovtun, N G; Laubenstein, M; Nisi, S; Poda, D V; Polischuk, O G; Shcherban, A P; Solopikhin, D A; Suhonen, J; Tolmachev, A V; Tretyak, V I; Yavetskiy, R P

    2013-01-01

    Results on the search for rare nuclear decays with the ultra low background facility STELLA at the LNGS using gamma ray spectrometry are presented. In particular, the best T1/2 limits were obtained for double beta processes in 96Ru and 104Ru. Several isotopes, which potentially decay through different double beta decay channels, including also possible resonant double electron captures, were investigated for the first time (156Dy, 158Dy, 184Os, 192Os, 190Pt, 198Pt). Search for resonant absorption of solar 7Li axions in a LiF crystal gave the best limit for the mass of 7Li axions (< 8.6 keV). Rare alpha decay of 190Pt to the first excited level of 186Os (Eexc = 137.2 keV) was observed for the first time.

  13. Three years of experience with the STELLA robotic observatory

    CERN Document Server

    Granzer, Thomas; Strassmeier, Klaus G; 10.1155/2010/980182

    2010-01-01

    Since May 2006, the two STELLA robotic telescopes at the Izana observatory in Tenerife, Spain, delivered an almost uninterrupted stream of scientific data. To achieve such a high level of autonomous operation, the replacement of all troubleshooting skills of a regular observer in software was required. Care must be taken on error handling issues and on robustness of the algorithms used. In the current paper, we summarize the approaches we followed in the STELLA observatory.

  14. StellaBase: The Nematostella vectensis Genomics Database

    OpenAIRE

    James C Sullivan; Ryan, Joseph F; Watson, James A.; Webb, Jeramy; Mullikin, James C; Rokhsar, Daniel; Finnerty, John R

    2005-01-01

    StellaBase, the Nematostella vectensis Genomics Database, is a web-based resource that will facilitate desktop and bench-top studies of the starlet sea anemone. Nematostella is an emerging model organism that has already proven useful for addressing fundamental questions in developmental evolution and evolutionary genomics. StellaBase allows users to query the assembled Nematostella genome, a confirmed gene library, and a predicted genome using both keyword and homology based search functions...

  15. Alkyl and phenolic glycosides from Saussurea stella.

    Science.gov (United States)

    Wang, Tian-Min; Wang, Ru-Feng; Chen, Hu-Biao; Shang, Ming-Ying; Cai, Shao-Qing

    2013-07-01

    One alkyl glycoside, saussurostelloside A (1), two phenolic glycosides, saussurostellosides B1 (2) and B2 (3), and 27 known compounds, including eleven flavonoids, seven phenolics, six lignans, one neolignan, one phenethyl glucoside and one fatty acid, were isolated from an ethanol extract of Saussurea stella (Asteraceae). Their structures were elucidated by NMR, MS, UV, and IR spectroscopic analysis. Of the known compounds, (+)-medioresinol-di-O-β-D-glucoside (7), picraquassioside C (10), and diosmetin-3'-O-β-D-glucoside (27) were isolated from the Asteraceae family for the first time, while (+)-pinoresinol-di-O-β-D-glucoside (6), di-O-methylcrenatin (11), protocatechuic acid (14), 1,5-di-O-caffeoylquinic acid (17), formononetin (28), and phenethyl glucoside (29) were isolated from the Saussurea genus for the first time. The anti-inflammatory activities of three new compounds (1-3), five lignans ((-)-arctiin (4), (+)-pinoresinol-4-O-β-D-glucoside (5), (+)-pinoresinol-di-O-β-D-glucoside (6), (+)-medioresinol-di-O-β-D-glucoside (7) and (+)-syringaresinol-4-O-β-D-glucoside (8)), one neolignan (picraquassioside C (10)), and one phenolic glycoside (di-O-methylcrenatin (11)) were evaluated by testing their inhibition of the release of β-glucuronidase from PAF-stimulated neutrophils. Only compound 5 showed moderate inhibition of the release of β-glucuronidase, with an inhibition ratio of 39.1%.

  16. StellaBase: the Nematostella vectensis Genomics Database.

    Science.gov (United States)

    Sullivan, James C; Ryan, Joseph F; Watson, James A; Webb, Jeramy; Mullikin, James C; Rokhsar, Daniel; Finnerty, John R

    2006-01-01

    StellaBase, the Nematostella vectensis Genomics Database, is a web-based resource that will facilitate desktop and bench-top studies of the starlet sea anemone. Nematostella is an emerging model organism that has already proven useful for addressing fundamental questions in developmental evolution and evolutionary genomics. StellaBase allows users to query the assembled Nematostella genome, a confirmed gene library, and a predicted genome using both keyword and homology based search functions. Data provided by these searches will elucidate gene family evolution in early animals. Unique research tools, including a Nematostella genetic stock library, a primer library, a literature repository and a gene expression library will provide support to the burgeoning Nematostella research community. The development of StellaBase accompanies significant upgrades to CnidBase, the Cnidarian Evolutionary Genomics Database. With the completion of the first sequenced cnidarian genome, genome comparison tools have been added to CnidBase. In addition, StellaBase provides a framework for the integration of additional species-specific databases into CnidBase. StellaBase is available at http://www.stellabase.org.

  17. Using STELLA Simulation Models to Teach Natural Resource Economics

    Science.gov (United States)

    Dissanayake, Sahan T. M.

    2016-01-01

    In this article, the author discusses how graphical simulation models created using STELLA software can be used to present natural resource systems in an intuitive way in undergraduate natural resource economics classes based on his experiences at a leading research university, a state university, and a leading liberal arts college in the United…

  18. Performance Prediction of Mechanical Pump in STELLA-1

    Energy Technology Data Exchange (ETDEWEB)

    Han, Ji-Woong; Cho, Chungho; Jeong, Ji-Young [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2014-10-15

    Under a mid- and long-term nuclear R-D program, STELLA (Sodium Integral Effect Test Loop for Safety Simulation and Assessment) project is in progress in KAERI (Korea Atomic Energy Research Institute). In STELLA-1, the experiments for the evaluation of heat exchangers such as DHX (Decay heat exchanger) and AHX (Air heat exchanger) are being performed, and those for PHTS (Primary heat transport system) mechanical pump are being prepared. The detailed design of each component is based on that of a 600MWe demonstration reactor. The model pump installed in STELLA-1 was scaled down based on the scaling law. Since the reference reactor of STELLA-1 is a 600MWe pool type demonstration reactor, some design modifications were inevitable between pool type prototype pump and loop type model pump, such as outer case and inlet pipe. In this study performance evaluation on the model pump has been done by CFD methods. The Design modeler in ANSYS Workbench was utilized in modeling process. The computations were performed using the commercial code ANSYS CFX. The overall hydraulic behaviors in the model pump have been predicted at a steady state condition.

  19. Using STELLA Simulation Models to Teach Natural Resource Economics

    Science.gov (United States)

    Dissanayake, Sahan T. M.

    2016-01-01

    In this article, the author discusses how graphical simulation models created using STELLA software can be used to present natural resource systems in an intuitive way in undergraduate natural resource economics classes based on his experiences at a leading research university, a state university, and a leading liberal arts college in the United…

  20. From the Theory of Intergroup Contact, Pattern of Pluralistic Unity of the Chinese Nation to Symbiosis and Mutual Complement --An Analysis of Text "Lian Li Hui" Festival, Sangzhi, Hunan%从族际接触、多元一体到共生互补——对湖南桑植白族“连理会”文本的解读

    Institute of Scientific and Technical Information of China (English)

    张丽剑

    2012-01-01

    The theory of intergroup contact and pattern of pluralistic unity of the Chinese nation are two important theories in research of relationship between nationalities. Base on the analysis of text "Lian Li Hui" festival spread in Sangzhi, Hunan. The paper points out that there are distinct differences between areas inhabited by many ethnic groups and habited by one ethnic group, there are obvious distinguish on the research of them. Under the pattern of pluralistic unity, symbiosis and mutual complement would be the best ways to solve modem relationship and problems exist in areas inhabited by many ethnic groups by practical attitude.%族际接触理论和多元一体格局下的“文化自觉”理论是研究民族关系的两种重要指导理论。通过对湖南桑植白族“连理会”文本的文化解读,指出散杂居与聚居有明显区别。对散杂居民族关系的研究应与对聚居民族的研究有所不同,应在中华民族多元一体格局下,倡导共生互补的理念,以务实的态度认识和处理当前我国散杂居地区的民族关系和民族问题。

  1. Simulation of the Production Process Dynamics using Vensim and Stella

    Directory of Open Access Journals (Sweden)

    Corina SBUGHEA

    2016-04-01

    Full Text Available This paper aims to make a brief presentation of the principles of dynamic systems and to analyze two applications support for modeling and simulation of the evolution of these systems. For illustration, we chose a classic model of the dynamics of the production process, which we have implemented in Vensim and Stella, in order to obtain evolutionary trajectories of the endogenous variables and analyze the behavior of the system.

  2. STELLA: 10 years of robotic observations on Tenerife

    Science.gov (United States)

    Weber, Michael; Granzer, Thomas; Strassmeier, Klaus G.

    2016-07-01

    STELLA is a robotic observatory on Tenerife housing two 1.2m robotic telescopes. One telescope is fibre-feeding a high-resolution (R=55,000) échelle spectrograph (SES), while the other telescope is equipped with a visible wide- field (FOV=22' x 22') imaging instrument (WiFSIP). Robotic observations started mid 2006, and the primary scientific driver is monitoring of stellar-activity related phenomena. The STELLA Control System (SCS) software package was originally tailored to the STELLA roll-off style building and high-resolution spectroscopy, but was extended over the years to support the wide-field imager, an off-axis guider for the imager, separate acquisition telescopes, classical domes, and targets-of-opportunity. The SCS allows for unattended, off-line operation of the observatory, targets can be uploaded at any time and are selected based on merit-functions in real-time (dispatch scheduling). We report on the current status of the observatory and the current capabilities of the SCS.

  3. The Deep Roots of Hui Operao

    Institute of Scientific and Technical Information of China (English)

    1993-01-01

    HUI Opera Groups arrivalin Beliing for performances200 years ago created a fu-rore,produced Peking opera andpromoted the developmen of val-ious kinds of local operas in China. The earliest Hui opera emergedat the beginning of the sixth centu-ry.It originated in the Qingyangstyle of singing,which was popu-lar in the Jiuhua Mountain areas insouthern Hui.Its fame had spreadthroughout the country by 1522.Book traders of the time compiledthe performed pieces and publishedmore than 10 collections.Some ofthese books went abroad,and nowthe Bibliotheque Nationale in Paris,the Japanese Cabinet Library andthe State Library in Germany allhave several.Later songs by fisher-men along the Yangtze River in theAnqing area were assimilated intothe Qingyaug style and thus a newform of singing,named Bazi sing-ing,emerged.At the same time theQingyang and Shuino styles in theKunshan area in Jiangsu Provincecombined to form Chui singing.

  4. Radioactivity measurements for the ERMES project at the STELLA facility

    Directory of Open Access Journals (Sweden)

    Gallese B.

    2012-04-01

    Full Text Available STELLA (SubTErranean Low Level Assay is the ultra low background facility of the Gran Sasso National Laboratories (L.N.G.S. in Italy. It is mainly devoted to material screening and rare events physics due to its very low radioactive background. Nevertheless, also environmental samples are measured within the collaboration with the ERMES (Environmental Radioactivity Monitoring for Earth Sciences project. After a short description of the facility some on-going applications within the ERMES project will be briefly presented. The usefulness of doing environmental radioactivity measurements in a deep underground laboratory will be shortly discussed.

  5. Staged electron laser accelerator (STELLA) experiment at brookhaven ATF

    Energy Technology Data Exchange (ETDEWEB)

    Pogorelsky, I.V.; Steenbergen, A. van; Gallardo, J.C. [Brookhaven National Lab., Upton, NY (United States)] [and others

    1998-03-01

    The STELLA experiment is being prepared at the BNL Accelerator Test Facility (STF). The goal of the experiment is to demonstrate quasi-monochromatic inverse Cherenkov acceleration (ICA) of electrons bunched to the laser wavelength period. Microbunches on the order of 2 {mu}m in length separated by 10.6 {mu}m will be produced using an inverse free electron laser (IFEL) accelerator driven by a CO{sub 2} laser. The design and simulations for two phases of this experiment including demonstration of 10 MeV and 100 MeV acceleration are presented. (author)

  6. Hui Students’ Identity Construction in Eastern China: A Postcolonial Critique

    Directory of Open Access Journals (Sweden)

    Yuxiang Wang

    2011-10-01

    Full Text Available In this article, we explored Hui students’ lived experiences in school in eastern China and the impact of their experiences on their identity construction. We used postcolonial theory as a theoretical framework and narrative inquiry as a research methodology to guide questions that we asked, data collection, data analysis, and interpretation and discussion of the findings in the study. We found that schooling for the two Hui students in eastern China is a process of reproducing mainstream Han ideology; taking away their culture, beliefs, knowledge, and identity; and imposing the mainstream Han culture and knowledge on Hui students as truth. The participants, two Hui students in an elementary school in eastern China, accepted the identity constructed by mainstream Han teachers and were confused about their Hui identity.

  7. Translation and cultural adaptation of Health Utilities Index (HUI) Mark 2 (HUI2) and Mark 3 (HUI3) with application to survivors of childhood cancer in Brazil.

    Science.gov (United States)

    Shimoda, Sandra; de Camargo, Beatriz; Horsman, John; Furlong, William; Lopes, Luiz Fernando; Seber, Adriana; Barr, Ronald D

    2005-06-01

    There are few publications reporting health-related quality of life (HRQL) in developing nations. Most instruments measuring HRQL have been developed in English-speaking countries. These instruments need to be culturally adapted for use in non-English-speaking countries. The HUI2 and HUI3 are generic, preference-based systems for describing health status and HRQL. Developed in Canada, the systems have been translated into more than a dozen languages and used worldwide in hundreds of studies of clinical and general populations. The Brazilian-Portuguese translation of the HUI systems was supervised by senior HUInc staff having experience with both the HUI systems and translations. The process included two independent forward translations of the multi-attribute health status classification systems and related questionnaires, consensus between translators on a forward translation, back-translation by two independent translators of the forward translation, and review of the back-translations by original developers of the HUI. The final questionnaires were tested by surveying a sample of convenience of 50 patients recruited at the Centro de Tratamento e Pesquisa-Hospital do Cancer in São Paulo, Brazil. Fifty patients were enrolled in the study. No assessor, patient or nurse or physician, reported problems answering the HUI questionnaires. No significant differences were found in mean overall HUI2 or HUI3 utility scores among types of assessors. Variability in scores are similar to those from other studies in Latin America and Canada. Test results provide preliminary evidence that the Brazilian-Portuguese translation is acceptable, understandable, reliable and valid for assessing health-status and HRQL among survivors of cancer in childhood in Brazil.

  8. O jornal Stella d’Italia e a defesa da escola étnica italiana (1902-1904 - Stella d’Italia newspaper and the defense of ethnic italian school (1902-1904

    Directory of Open Access Journals (Sweden)

    Gelson Leonardo Rech

    2015-04-01

    . Considerando la escasa literatura sobre las escuelas étnicas italianas de Porto Alegre, el periódico Stella d’Italia tiene particular importancia por el destaque frecuente a la temática de la educación y por la fuerte opinión y celo del editor, Adelchi Colnaghi, por la escuela étnica italiana. Los llamamientos y consideraciones de Colnaghi en defensa de la escuela italiana, su diagnóstico sobre las dificultades de la misma,  así como el estado de la educación entre los italianos en Porto Alegre fue reiterado, varias veces, en las páginas del periódico. Colnaghi estaba convencido de la importancia de la escuela italiana, pero en la perspectiva del periódico poco se hizo por la misma y, a veces, se hizo contra ella.Palabras-clave: Stella d’Italia, Adelchi Colnaghi, Enrico Ciapelli, escuelas étnicas italianas. LE JOURNAL STELLA D’ITALIA ET LA DÉFENSE DE L’ÉCOLE ETHNIQUE ITALIENNE (1902-1904RésuméCet article analyse deux éléments récurrents dans les éditions des trois premières éditions des trois premières années du journal de Porto Alegre Stella d’Italia (1902-1904, édité en italien, à savoir: le mécontentement lié à l'état dans lequel se trouvait l'instruction parmi les italiens et les italo-brésiliens à Porto Alegre et la polémique en ce qui concernait le consul italien Enrico Ciapelli, qui a résulté dans la suspension de l'envoie de matériel aux écoles italiennes, maintenues par les sociétés italiennes, qui appuyaient le journal. La polémique, pas relatée par les rapports officiels du consul, a eu comme élément détonateur l'accusation, sustentée par l'éditeur du journal, qu'il ne s'intéressait pas suffisamment à tout ce qui concernait l'école et ses compatriotes. Considérant la littérature faible sur les écoles ethniques italiennes à Porto Alegre, le journal Stella d’Italia a une importance particulière à cause de la mise en relief fréquente du thème de l'éducation et de l'opinion marquante et le z

  9. Gebruik van elektriciteit: Domotica: Huis van de toekomst: Klas 4 havo

    NARCIS (Netherlands)

    O. van Buuren; M. van der Lee

    2008-01-01

    Deze module behandelt elektriciteit en automatisering in huis. We richten ons daarbij ook op het huis van de toekomst. Bij de elektriciteitsleer ligt de nadruk op het gebruik van elektriciteit in huis, bij de automatisering op intelligente systemen in huis. Er komt een vervolg module domotica 2 als

  10. Automation Hardware & Software for the STELLA Robotic Telescope

    Science.gov (United States)

    Weber, M.; Granzer, Th.; Strassmeier, K. G.

    The STELLA telescope (a joint project of the AIP, Hamburger Sternwarte and the IAC) is to operate in fully robotic mode, with no human interaction necessary for regular operation. Thus, the hardware must be kept as simple as possible to avoid unnecessary failures, and the environmental conditions must be monitored accurately to protect the telescope in case of bad weather. All computers are standard PCs running Linux, and communication with specialized hardware is done via a RS232/RS485 bus system. The high level (java based) control software consists of independent modules to ease bug-tracking and to allow the system to be extended without changing existing modules. Any command cycle consists of three messages, the actual command sent from the central node to the operating device, an immediate acknowledge, and a final done message, both sent back from the receiving device to the central node. This reply-splitting allows a direct distinction between communication problems (no acknowledge message) and hardware problems (no or a delayed done message). To avoid bug-prone packing of all the sensor-analyzing software into a single package, each sensor-reading and interaction with other sensors is done within a self-contained thread. Weather-decision making is therefore totally decoupled from the core control software to avoid dead-locks in the core module.

  11. La recherche alpine aujourd’hui

    Directory of Open Access Journals (Sweden)

    Jean-Jacques Brun

    2009-06-01

    Full Text Available Alpine research benefits from several international coordination networks, only one of which – ISCAR (the International Scientific Committee on Research in the Alps – works solely in the Alpine arc. The creation of ISCAR is a consequence of the input and involvement of various Alpine partners around the Alpine Convention. Alpine research now aims to promote an integrated vision of Alpine territories focusing on creating and maintaining spatial and temporal networks of sustainable relationships between humans and the other components of the ecosphere. It combines resource usage with conservation of the biological and cultural diversity that makes up the Alpine identity. This article aims to show: (1 how international Alpine research coordination is organised; (2 the role played by the Alpine Convention as a framework of reference for specifically Alpine research; and (3 the role that the ISCAR international commit-tee and the Interreg “Alpine Space” programmes play in uniting research around territorial challenges relating to biodiversity conservation and territorial development.La recherche sur les Alpes bénéficie de plusieurs réseaux de coordination internationaux dont un seul, le comité international recherche alpine (ISCAR, se consacre exclusivement à l’arc alpin. La création de l’ISCAR est une retombée de la mobilisation des divers partenaires alpins autour de la mise en place de la Convention alpine. Aujourd’hui, la recherche alpine vise à promouvoir une vision intégrée des territoires centrée sur la création et le maintien d’un réseau spatial et temporel de relations durables entre les hommes et les autres composantes de l’écosphère. Elle associe étroitement la mise en valeur des ressources et la conservation des diversités biologiques et culturelles qui constituent l’identité alpine. Cet article a pour ambition de montrer : (1 comment s’organise la coordination internationale des recherches sur les

  12. Stella McCartney为H&M设计新系列

    Institute of Scientific and Technical Information of China (English)

    木冰

    2005-01-01

    英国设计师Stella McCartney为瑞典服装连锁巨头H&M设计的新系列“Stella McCartney for H&M”计划将于今年秋季推出,去年Chanel首席设计师Korl Lagerfeld也曾担纲H&M的设计,并推出“Karl Lagerfeld for H&M”系列,成为当时的爆炸性新闻。

  13. VizieR Online Data Catalog: STELLA-SES Radial Veocities of HD 208472 (Ozdarcan+, 2016)

    Science.gov (United States)

    Ozdarcan, O.; Carroll, T. A.; Kunstler, A.; Strassmeier, K. G.; Evren, S.; Weber, M.; Granzer, T.

    2016-07-01

    Precise radial velocity measurement of HD 208472 based on 229 high resolution Stella Echelle Spectrograph (SES) spectra obtained at STELLA robotic observatory on Tenerife, Spain from March 22, 2009 to July 20, 2011 are presented. High precision radial velocities allow one to trace spot jitter effect on measured radial velocities via residuals from spectroscopic orbit solution. In case of HD 208472, removing spot jitter effect from measured velocities, precision on calculated orbital parameters were improved by factor of 4 without changing the actual value of parameters. (1 data file).

  14. STELLA LUNA2012秋冬时装秀闪亮发布

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    STELLA LUNA2012秋冬时装秀于7月12日晚上在北京朝阳1919创意园区首度发布。2012秋冬STELLA LUNA回归现代主义,以雕塑艺术家Martin Boyce对现代与自然的非传统呈现为灵感,创造出“TOWN AND COUNTRY”的鞋履系列。

  15. Interleukin-6 genotypes and serum levels in Chinese Hui population.

    Science.gov (United States)

    Gao, Shu-Ping; Liang, Shu; Pan, Min; Sun, Rong-Liang; Chen, Chu; Luan, Hong; Jiang, Min-Hui

    2014-01-01

    Interleukin-6 (IL-6) is a key pro-inflammatory cytokine involved in different physiologic and pathophysiologic processes, and circulating levels of IL-6 differ greatly between individuals. The Chinese Hui is one of the largest ethnic minorities, little is known about the distribution of IL-6 genetic variations and their effects on serum levels in Hui population. The aim of the present study is to determine the prevalence of -174G/C (rs1800795), -597G/A (rs1800797), and -634C/G (rs1800796) polymorphisms in the IL-6 gene promoter region and their association with IL-6 serum levels in the Ningxia Hui population. A total of 96 Hui subjects, (57 men and 39 women; mean age 49.65 ± 19.73 years) unrelated nationality residents in Ningxia Hui Autonomous Region were enrolled. Genotyping of the three polymorphisms were performed by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) combined with gel electrophoresis and then confirmed by direct sequencing. The -174G/C (97.92% GG, 2.08% GC, and 0% CC) and -597G/A (98.96% GG, 1.04% GA, and 0% AA) polymorphisms were rare. The frequencies of -634C/G genotypes CC, CG, and GG were found to be 54.17%, 40.62%, and 5.21%, respectively in total studied subjects, the derived allele frequencies for the C and G alleles were 74.48% and 25.52%. Increased IL-6 levels were correlated with the IL-6 -634G allele carriers (CG+GG genotypes). The results suggest that IL-6 -174G/C and -597G/A are rare but -634C/G is common in the Ningxia Hui population, and the -634G allele is associated with circulating levels of IL-6.

  16. Interleukin-6 genotypes and serum levels in Chinese Hui population

    OpenAIRE

    2014-01-01

    Interleukin-6 (IL-6) is a key pro-inflammatory cytokine involved in different physiologic and pathophysiologic processes, and circulating levels of IL-6 differ greatly between individuals. The Chinese Hui is one of the largest ethnic minorities, little is known about the distribution of IL-6 genetic variations and their effects on serum levels in Hui population. The aim of the present study is to determine the prevalence of -174G/C (rs1800795), -597G/A (rs1800797), and -634C/G (rs1800796) pol...

  17. "Carnivalesque": Assorted Thoughts about One English Teachers'"Professionalism" Prompted by the STELLA Project.

    Science.gov (United States)

    Hayes, Terry

    2001-01-01

    Questions whether a framework such as STELLA (Standards for Teachers of English Language and Literacy in Australia) can capture the essence of what teachers do in the classroom. Addresses three animating passions which have informed and energized the author's work as a teacher: intensity, empathy, and gaiety. (RS)

  18. Preliminary Evaluation of PGSFR DHR Heat Exchangers Performance Using STELLA-1 Facility

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Jonggan; Eoh, Jae-Hyuk; Yeom, Sujin; Lee, Jewhan; Kim, Tae-Joon; Hwang, Inkoo; Cho, Chungho; Kim, Jong-Man; Cho, Youngil; Jung, Min-Hwan; Gam, Da-Young; Jeong, Ji-Young [Korean Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2014-10-15

    The STELLA program for PGSFR decay heat removal (DHR) performance demonstration is in progress at KAERI. As the first phase of the program, the STELLA-1 facility has been constructed and separate effect tests for heat exchangers of DHRS have been conducted. Two kinds of heat exchangers including a shell-and-tube type sodium-to-sodium heat exchanger (DHX) and a helical-tube type sodium-to-air heat exchanger (AHX) were tested for design codes V-V, e.g. SHXSA and AHXSA. In this paper, firstly, overall characteristics of the STELLA-1 facility are described briefly. Secondly, the performance tests of the DHX and AHX rely on a steady-state result of a heat transfer experiment. Thus experimental procedures to obtain the steady-state result are described and steady-state conditions for the heat exchanger performance test are clearly defined. Lastly, experimental results and calculation results obtained from the design codes are also compared as a preliminary work for the design code V-V. The PGSFR DHR heat exchangers performance was experimentally demonstrated using the STELLA-1 facility, and the experimental results and the prediction of the design code were compared as a preliminary work for the design code V-V. The experimental results of the DHX and AHX were in good agreement with the estimation of the SHXSA and AHXSA codes, respectively.

  19. Book Review of "The Molecular Biology of Cancer" by Stella Pelengaris, Michael Khan (Editors

    Directory of Open Access Journals (Sweden)

    Schmidt Christian

    2007-11-01

    Full Text Available Abstract Here, a review of "The Molecular Biology of Cancer" (Stella Pelengaris and Michael Khan [Editors] is given. The detailed description of the book is provided here: Pelengaris S, Khan M (Eds: The Molecular Biology of Cancer; Blackwell Publishing, Oxford (U.K.; 2006. 531 pages, 214 illustrations, ISBN 9-78140-511-814-9, £31.99.

  20. TLÜ Eesti pedagoogika arhiivmuuseum avas näituse Stella Ernesaksast / Mare Torm

    Index Scriptorium Estoniae

    Torm, Mare, 1947-

    2009-01-01

    Tallinna Ülikooli Eesti Pedagoogika Arhiivmuuseum tähistas 3. märtsil omaaegse tuntud võimlemispedagoogi ja koolieelse kehalise kasvatuse metoodiku Stella Ernesaksa 100. sünniaastapäeva tema isikunäituse avamisega

  1. PATIENT SAFETY CULTURE AND PATIENT SAFETY IMPLEMENTATION IN STELLA MARIS HOSPITAL DURING NATIONAL HEALTH INSURANCE ERA

    OpenAIRE

    Rivai, Fridawaty

    2017-01-01

    Implementation of patient safety in hospital is influenced by several factors such as culture of patient safety. The aim of the research was to analyze the effect of patient safety culture on the implementation of patient safety in Stella Maris Hospital in 2016. The research was a quantitative studyusinganalytic operationaldesign withcross-sectional approach. The samples consisted of 234people selected using proportional stratified random sampling technique. The results of the research ...

  2. Creativity Makes A New County——Hui Autonomous County of Dachang%图强求精天地新创意水乡展宏图——大厂回族自治县

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Hui Autonomous County of Dachang was established in 1955, a Beijing-nearest county of ethnic minority group. Dachang, is a creative city from water. It is origi-nally a piece of vast grassland with beauti-ful scenery full of spring and grass. The emperor Zhu Li of Ming Dynasty estab-lished royal horse ground here and granted Dachang as its name.

  3. In corpo due anime: La chiave a stella tra finzione, testimonianza e antropologia

    Directory of Open Access Journals (Sweden)

    Emanuele Caon

    2016-11-01

    Full Text Available La chiave a stella viene, appena pubblicato, investito da un dibattito molto vivace dovuto alla carica polemica che sembrava assumere il testo rispetto al tema del lavoro. Anche la critica letteraria si concentra su questo aspetto, oltre che sulle qualità linguistiche dell’opera. Mantenendo come punto fermo che la scelta del tema in Levi è centrale quanto la sua elaborazione artistica, si tenterà di dimostrare le qualità anzitutto letterarie del romanzo e solo alla fine si valuterà il suo motivo dominante. L’analisi inizia dalle strutture narrative, ovvero sulla capacità di Levi di saldare insieme i vari racconti nella forma romanzo, per passare poi alla rielaborazione della funzione testimoniale a scopi prettamente finzionali; argomento valido a erodere l’immagine stereotipata di Levi come il testimone del Lager per sbilanciarla maggiormente verso quella dello scrittore. Infine, sempre tenendo presente l’intera opera leviana, si affronta il tema del lavoro all’interno del romanzo, spesso accusato di risentire troppo dell’ideologia autoriale. L’ipotesi di ricerca è che Levi compia un percorso di scavo antropologico servendosi degli strumenti dell’invenzione letteraria e dell’elaborazione stilistica. Sono la distanza tra autore e personaggio e l’uso della figuralità letteraria a consentire a La chiave a stella di contraddire, almeno in parte, il controllo del proprio autore. Il romanzo si apre, dunque, alla polisemia e svela le sue capacità di durata nel tempo e di prefigurazione rispetto alla nuova configurazione post-fordista. The publication of La chiave a stella (1978 stirred an immediate and animated debate due to its polemic tones with regard to the theme of work. Indeed, beside the linguistic concerns, literary critics also focused on such theme. By starting from the assumption that Levi’s thematic choice is as fundamental as its artistic re-elaboration, the present contribution aims to emphasize primarily

  4. L’ESPACE MULTIPLIE CHEZ SARTRE : HUIS-CLOS

    Directory of Open Access Journals (Sweden)

    Corina-Amelia GEORGESCU

    2013-05-01

    Full Text Available Du point de vue historique, le XXe siècle est le siècle le plus bouleversé de l’histoire connue de l’humanité, se caractérisant par plusieurs événements majeurs. C’est dans ce contexte que Jean-Paul Sartre se fraie un chemin dans la vie littéraire française en y apportant un souffle nouveau. Notre travail se propose d’analyser la pièce Huis clos dans le but de démontrer que lorque l’on parle de l’espace de l’emprisonnement, on doit prendre en considération qu’il ne s’agit pas d’un seul type d’espace et que celui-ci se multiplie justement pour rendre l’impossibilité d’y échapper.

  5. La langue scientifique arabe hier et aujourd'hui

    Directory of Open Access Journals (Sweden)

    Layal Merhy

    2009-09-01

    Full Text Available Cet article propose un exposé concis des statuts de la langue scientifique arabe entre hier et aujourd'hui. Après avoir rapidement décrit le rôle des médias dans l'évolution de la langue, l'étude cherche à observer - dans le cadre de la diffusion sociale du savoir - le développement de la communication scientifique dans le Monde Arabe. Aussitôt, cette tentative d'analyse tâche de repérer les contraintes qui freinent l'évolution scientifique et linguistique dans les pays arabes et d'ouvrir la voie à des perspectives d'amélioration futures.

  6. Validation of intermediate heat and decay heat exchanger model in MARS-LMR with STELLA-1 and JOYO tests

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Chiwoong; Ha, Kwiseok; Hong, Jonggan; Yeom, Sujin; Eoh, Jaehyuk [Sodium-cooled Fast Reactor Design Division, Korea Atomic Energy Research Institute (KAERI), 989-111, Daedeok-Daero, Yuseong-Gu, Daejeon 305-353 (Korea, Republic of); Jeong, Hae-yong, E-mail: hyjeong@sejong.ac.kr [Department of Nuclear Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 143-747 (Korea, Republic of)

    2016-11-15

    Highlights: • The capability of the MARS-LMR for heat transfer through IHX and DHX is evaluated. • Prediction of heat transfer through IHXs and DHXs is essential in the SFR analysis. • Data obtained from the STELLA-1 and the JOYO test are analyzed with the MARS-LMR. • MARS-LMR adopts the Aoki’s correlation for tube side and Graber-Rieger’s for shell. • The performance of the basic models and other available correlations is evaluated. • The current models in MARS-LMR show best prediction for JOYO and STELLA-1 data. - Abstract: The MARS-LMR code has been developed by the Korea Atomic Energy Research Institute (KAERI) to analyze transients in a pool-type sodium-cooled fast reactor (SFR). Currently, KAERI is developing a prototype Gen-IV SFR (PGSFR) with metallic fuel. The decay heat exchangers (DHXs) and the intermediate heat exchangers (IHXs) were designed as a sodium-sodium counter-flow tube bundle type for decay heat removal system (DHRS) and intermediate heat transport system (IHTS), respectively. The IHX and DHX are important components for a heat removal function under normal and accident conditions, respectively. Therefore, sodium heat transfer models for the DHX and IHX heat exchangers were added in MARS-LMR. In order to validate the newly added heat transfer model, experimental data were obtained from the JOYO and STELLA-1 facilities were analyzed. JOYO has two different types of IHXs: type-A (co-axial circular arrangement) and type-B (triangular arrangement). For the code validation, 38 and 39 data points for type A and type B were selected, respectively. A DHX performance test was conducted in STELLA-1, which is the test facility for heat exchangers and primary pump in the PGSFR. The DHX test in STELLA-1 provided eight data points for a code validation. Ten nodes are used in the heat transfer region is used, based on the verification test for the heat transfer models. RMS errors for JOYO IHX type A and type B of 19.1% and 4.3% are obtained

  7. Co-existence of Endometriotic Cyst of the Ovary and Arias-Stella Reaction in a Non-Pregnant Woman: Report of a Rare Case.

    Science.gov (United States)

    Harikrishnan, Volga; Esaki, Muthuvel; Srinivasan, Chitra; Arockiasamy, Parimala; Ethirajan, Shanthi

    2016-03-01

    Endometriosis is defined as presence of endometrial tissue outside the uterus. It can occur anywhere in the ovary. In the ovary it is usually presented as cyst, termed as endometriotic cyst or Chocolate cyst. Arias-Stella reaction is usually seen in gestational endometrium or in ectopic gestation site and rarely in non-pregnant uterus with hormonal intake. Co-existence of endometriosis and Arias-Stella reaction is very rare. We present a very rare case of endometriotic cyst of the ovary exhibiting Arias -Stella reaction which was seen in of non pregnant patient without any history of hormonal intake.

  8. The Start-up Test of Mechanical Sodium Pump installed in STELLA-1

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Chungho; Kim, Jong-Man; Ko, Yung Joo; Kim, Byeongyeon; Cho, Youngil; Jung, Min-Hwan; Gam, Da-Young; Lee, Yong Bum; Jeong, Ji-Young; Kim, Jong-Bum [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2015-10-15

    Testing at the high temperature sodium environments is more expensive and time consuming because of difficulties of operating and maintaining of sodium experimental facilities. Consequent upon those problems, water is often selected as a surrogate test fluid because its important hydraulic properties such as a density and a kinematic viscosity are not only very similar to that of the sodium but also it is cheap, easily available and easy to handle. SFR NSSS System Design Division of Korea Atomic Energy Research Institute (KAERI) is performing a development and demonstration of sodium technology using various sodium experimental facilities, especially STELLA-1. STELLA-1 (Sodium inTegral Effect test Loop for safety simuLation and Assessment) is a large-scale separated effect test facility for demonstrating the thermal-hydraulic performances of major components such as a Sodium-to-Sodium heat exchanger (DHX), Sodium-to-Air heat exchanger (AHX) of the decay heat removal system, and mechanical sodium pump of the primary heat transport system (PHTS). The result of start-up test, most of the instruments and components except for flow control valve are functionally work. Also, we confirmed that performance test of mechanical sodium pump is unable at the high flow rate with lower RPM because pressure drops of pump performance test loop are bigger than the pump head of some cases. To confirm the safety and operability of major components in the sodium-cooled fast reactor (SFR), demonstration of component performance should be carried out before its installation in reactor. So, in order to estimate the hydraulic behavior of the mechanical sodium pump, the performance tests of the model pump with water environment was carried out using a pump vender's experimental facility. Also, to compare the hydraulic characteristic of model pump with water and sodium, the performance test of model pump with sodium environment were performed using STELLA-1. The present paper describes

  9. Exploring dynamic relationships using STELLA (structural thinking experimental learning laboratory with animation)

    Energy Technology Data Exchange (ETDEWEB)

    Butler, J.C. (Univ. of Houston, TX (USA))

    1988-11-01

    Understanding qualitative and quantitative models is central to much of the activity of a geoscientists. Often such models are portrayed as sticks and boxes in the literature and a verbal description of the mathematics underlying the model is presented to the reader. Such a presentation does not facilitate understanding and does not encourage use of the model to solve a problem or expand an investigation. STELLA (structural thinking experimental learning laboratory with animation) is a software package written for the Macintosh family of microcomputers, that facilitates the construction of dynamic models and encourages playing the what-if game that instructors and managers are fond of promoting. Two examples from the literature are used to illustrate this application.

  10. STELLA LUNA形象店诠释艺术博物馆概念

    Institute of Scientific and Technical Information of China (English)

    吴晓(编); Holly(译)

    2009-01-01

    近日,STELLA LUNA在北京Solana开设了一间新的形象旗舰店,这是它在中国区开设的第二家形象店,店铺整体设计风格采用全新的艺术博物馆概念(ART MUSEUM CONCEPT),以黑白颜色为主调,通过简洁又极具张力的回形线条,勾勒出独特的现代主义精致空间。此间店面陈列的主题为“NATIVITY诞生”,以彩色萤光蛋为载体,融合萤光丝袜,半身腿模等性感元素,

  11. Stella Luna巴黎开设首家店铺

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    中国鞋子品牌Stella Luna在巴黎开设了首家店铺,作为打开欧洲市场的第一步。该店铺选址在181 Boulevard Saint-Germain,占地870平方英尺,距离Berluti、Etro、Ralph Lauren等品牌的精品店很近。店铺的装修风格和亚洲店保持一致,以带有法式风情的现代博物馆为主题,展现鞋子就像是艺术品这一理念。

  12. Laser Wakefield Acceleration Driven by a CO2 Laser (STELLA-LW) - Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Kimura, Wayne D

    2008-06-27

    The original goals of the Staged Electron Laser Acceleration – Laser Wakefield (STELLA-LW) program were to investigate two new methods for laser wakefield acceleration (LWFA). In pseudo-resonant LWFA (PR-LWFA), a laser pulse experiences nonlinear pulse steepening while traveling through the plasma. This steepening allows the laser pulse to generate wakefields even though the laser pulse length is too long for resonant LWFA to occur. For the conditions of this program, PR-LWFA requires a minimum laser peak power of 3 TW and a low plasma density (10^16 cm^-3). Seeded self-modulated LWFA (seeded SM-LWFA) combines LWFA with plasma wakefield acceleration (PWFA). An ultrashort (~100 fs) electron beam bunch acts as a seed in a plasma to form a wakefield via PWFA. This wakefield is subsequently amplified by the laser pulse through a self-modulated LWFA process. At least 1 TW laser power and, for a ~100-fs bunch, a plasma density ~10^17 cm^-3 are required. STELLA-LW was located on Beamline #1 at the Brookhaven National Laboratory (BNL) Accelerator Test Facility (ATF). The ATF TW CO2 laser served as the driving laser beam for both methods. For PR-LWFA, a single bunch was to probe the wakefield produced by the laser beam. For seeded SM-LWFA, the ATF linac would produce two bunches, where the first would be the seed and the second would be the witness. A chicane would compress the first bunch to enable it to generate wakefields via PWFA. The plasma source was a short-length, gas-filled capillary discharge with the laser beam tightly focused in the center of the capillary, i.e., no laser guiding was used, in order to obtain the needed laser intensity. During the course of the program, several major changes had to be made. First, the ATF could not complete the upgrade of the CO2 laser to the 3 TW peak power needed for the PR-LWFA experiment. Therefore, the PR-LWFA experiment had to be abandoned leaving only the seeded SM-LWFA experiment. Second, the ATF discovered that the

  13. Proof and Pedagogy in Ancient China: Examples from Liu Hui's Commentary on "JIU ZHANG SUAN SHU".

    Science.gov (United States)

    Siu, Man-Keung

    1993-01-01

    Illustrates the pedagogical implications embodied in Liu Hui's discussion on the ancient Chinese mathematical classic "JIU ZHANG SUAN SHU" (Nine Chapters on the Mathematical Art) with respect to aspects of proof and, more generally, the role of proof in mathematics. Provides examples involving area and volume. (Contains 25 references.) (MDH)

  14. When Liu Hui Meets Archimedes: Students' Epistemological and Cultural Interpretations of Mathematics

    Science.gov (United States)

    Liu, Po-Hung

    2014-01-01

    The present study aimed to investigate in what way and to what extent Taiwanese college students' epistemological views of mathematics had evolved during a history-based liberal arts mathematics course titled: "When Liu Hui Meets Archimedes--Development of Eastern and Western Mathematics." The course was designed to help college students…

  15. Take Pictures of the Motherland : Zhao Hui and His Photo Collection "China Story"

    Institute of Scientific and Technical Information of China (English)

    TangJinghua; ZhaoHui

    2003-01-01

    A story can be narrated in different ways. As to the story about China, Zhao Hui's version is unique. This is a story presented by camera lens, a story that unfolds a cultural China with vitality and grandeur. One can be all but overwhelmed by its new means of presentation, its new concept of photographing,

  16. GENETIC POLYMORPHISM OF SIX Y CHROMOSOMAL STR IN CHINESE HUI ETHNIC GROUP

    Institute of Scientific and Technical Information of China (English)

    Zhu Bofeng; Lü Guiping; Yao Guifa; Zhu Jun; Dong Hongwang; Sun Qingdong; Huang Lei; Liu Yao

    2005-01-01

    Objective To study genetic polymorphism of 6 Y chromosomal STR in Hui ethnic group living in Ningxia Hui ethnic autonomous region, in order to evaluate their usefulness in forensic science and enrich the Chinese genetic information resources. Methods We investigated 101 unrelated, healthy, male individuals of Hui ethnic group and studied their allelic frequency distribution and haplotype diversity of 6 Y chromosomal STR. Primer for each loci was labeled with the fluorescent by FAM (blue) or TAMRA(yellow). The data of Hui ethnic group were generated co-amplification, GeneScan, genotype, and genetic distribution analysis. Results 31 alleles and 43 phenotype(DYS385) were detected, with the frequencies ranging from 0.0099-0.7129. Out of a total of 101 individuals, 96 showed different haplotypes; 91 were unique; 5 were found 2 times. The haplotype diversity for 6 Y-STR loci was 0.9990. Conclusion The date obtained can be valuable for individual identification, paternity testing in forensic fields and for population genetics because of 6 Y-STR loci high polymorphism.

  17. STELLA: A domain-specific embedded language for stencil codes on structured grids

    Science.gov (United States)

    Gysi, Tobias; Fuhrer, Oliver; Osuna, Carlos; Cumming, Benjamin; Schulthess, Thomas

    2014-05-01

    Adapting regional weather and climate models (RCMs) for hybrid many-core computing architectures is a formidable challenge. Achieving high performance on different supercomputing architectures while retaining a single source code are often perceived as contradicting goals. Typically, the numerical algorithms employed are tightly inter-twined with hardware dependent implementation choices and optimizations such as for example data-structures and loop order. While Fortran is currently the de-facto standard for programming RCMs, no single such standard for porting such models to graphics processing units (GPUs) has yet emerged. The approaches used can be grouped into three main categories: compiler directives (OpenACC, PGI compiler directives), custom programming languages (CUDA, OpenCL) and domain-specific libraries or languages. STELLA (STencil Loop LAnguage) is a domain-specific embedded language (DSEL) built using generic programming in C++ which is targeted at stencil codes on structured grids. It allows a high-level specification of the algorithm while separating hardware dependent implementation details into back-ends. Currently, a back-end for multi-core CPUs using the OpenMP programming model and a back-end for NVIDIA GPUs using the CUDA programming mode has been developed. We will present the domain-specific language and its features such as software managed caching. With the example of an implementation of the dynamical core of a RCM (COSMO) we will compare performance with respect to the original Fortran implementation both on both CPUs and GPUs. Finally, we will discuss advantages and disadvantages of our approach as compared to other approaches such as source-to-source translators.

  18. The Megalithic Complex of the ``Preta 'ru Mulacchio'' on the Monte della Stella

    Science.gov (United States)

    Polcaro, V. F.; Ienna, D.

    2009-08-01

    The Monte della Stella is a 1131~m high mountain, belonging to the range separating the Alento Valley from the Tyrrhenian Sea, south of the city of Agropoli in Italy. At 1030~m over the sea-level, a large, isolated outcrop of the bedrock is present. This rock is well known to local people and called the ``Preta 'ru Mulacchio'', expression meaning in the local dialect ``The Bastard Child Rock''. The ``Preta'' is basically composed by three rocks that were originated along of natural reasons from a single block of arenite in its upper part and of a rough conglomerate in the lower one: between the three rocks, two galleries (thereafter F and G) were thus formed. However, it is easy to see that the ``Preta'' was deeply modified by human intervention: large stones were wedged in exact position between the three original blocks or positioned as a cover. We found that F gallery has an astronomical azimuth of 359 deg and G gallery of 240 deg. Inside the measurement precision (1 deg), the galleries are thus respectively oriented to the meridian and to the sunset of the winter solstice. Furthermore, modern folklore associated to the rock seems to remind very ancient fertility rites. From a statistical analysis of the alignments and an archaeological study of the complex, we conclude that ``Preta 'ru Mulacchio'' is most probably a monument, dated to an epoch presently unknown but possibly preceding the Greek colonization of Cilento, built in order to determine with a high precision the winter solstice because of cerimonial reasons, probably connected with fertility rites.

  19. Laser Wakefield Acceleration Driven by a CO2 Laser (STELLA-LW) - Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Kimura, Wayne D

    2008-06-27

    The original goals of the Staged Electron Laser Acceleration – Laser Wakefield (STELLA-LW) program were to investigate two new methods for laser wakefield acceleration (LWFA). In pseudo-resonant LWFA (PR-LWFA), a laser pulse experiences nonlinear pulse steepening while traveling through the plasma. This steepening allows the laser pulse to generate wakefields even though the laser pulse length is too long for resonant LWFA to occur. For the conditions of this program, PR-LWFA requires a minimum laser peak power of 3 TW and a low plasma density (10^16 cm^-3). Seeded self-modulated LWFA (seeded SM-LWFA) combines LWFA with plasma wakefield acceleration (PWFA). An ultrashort (~100 fs) electron beam bunch acts as a seed in a plasma to form a wakefield via PWFA. This wakefield is subsequently amplified by the laser pulse through a self-modulated LWFA process. At least 1 TW laser power and, for a ~100-fs bunch, a plasma density ~10^17 cm^-3 are required. STELLA-LW was located on Beamline #1 at the Brookhaven National Laboratory (BNL) Accelerator Test Facility (ATF). The ATF TW CO2 laser served as the driving laser beam for both methods. For PR-LWFA, a single bunch was to probe the wakefield produced by the laser beam. For seeded SM-LWFA, the ATF linac would produce two bunches, where the first would be the seed and the second would be the witness. A chicane would compress the first bunch to enable it to generate wakefields via PWFA. The plasma source was a short-length, gas-filled capillary discharge with the laser beam tightly focused in the center of the capillary, i.e., no laser guiding was used, in order to obtain the needed laser intensity. During the course of the program, several major changes had to be made. First, the ATF could not complete the upgrade of the CO2 laser to the 3 TW peak power needed for the PR-LWFA experiment. Therefore, the PR-LWFA experiment had to be abandoned leaving only the seeded SM-LWFA experiment. Second, the ATF discovered that the

  20. Stella Luna 09秋冬鞋履发布 鞋子的情欲解放

    Institute of Scientific and Technical Information of China (English)

    Chris Zhang; TS

    2009-01-01

    <正>谁还敢说每天被我们踩在脚下的鞋子没有生命,没有语言,没有欲望?Stella Luna 09/10 Autumn Winter Collection新作发表会,让我们与自己的高跟鞋更亲近。这场选择在上海城市雕塑艺术中心上演的"鞋子盛会"让全场嘉宾与恋鞋分子,在此彻夜狂欢,与81双新鞋交流。

  1. Introduction to Professor ZHENG Hui-tian's Clinical Experience in Treating Urethral Syndrome

    Institute of Scientific and Technical Information of China (English)

    YUAN Ling-song; YUAN Shun-xing; HAUNG Guo-qi

    2003-01-01

    @@ Prof. ZHENG Hui-tian organized the project of "Acupuncture Treatment of Urethral Syndrome by the Method to Reinforce the Kidney and Warm Yang", which won the second prize for scientific achievements awarded by State Administration of Traditional Chinese Medicine and the second prize for the scientific achievements awarded by Shanghai Municipal Science Commission in 1996 and was introduced to the whole nation as a scientific achievement of traditional Chinese medicine in 1997.

  2. A STELLA Model to Estimate Water and Nitrogen Dynamics in a Short-Rotation Woody Crop Plantation.

    Science.gov (United States)

    Ouyang, Ying; Zhang, Jiaen; Leininger, Theodor D; Frey, Brent R

    2015-01-01

    Although short-rotation woody crop biomass production technology has demonstrated a promising potential to supply feedstocks for bioenergy production, the water and nutrient processes in the woody crop planation ecosystem are poorly understood. In this study, a computer model was developed to estimate the dynamics of water and nitrogen (N) species (e.g., NH-N, NO-N, particulate organic N, and soluble organic N [SON]) in a woody crop plantation using STELLA (tructural hinking and xperiential earning aboratory with nimation) software. A scenario was performed to estimate diurnal and monthly water and N variations of a 1-ha mature cottonwood plantation over a 1-yr simulation period. A typical monthly variation pattern was found for soil water evaporation, leaf water transpiration, and root water uptake, with an increase from winter to summer and a decrease from summer to the following winter. Simulations further revealed that the rate of soil water evaporation was one order of magnitude lower than that of leaf water transpiration. In most cases, the relative monthly water loss rates could be expressed as evapotranspiration > root uptake > percolation > runoff. Leaching of NO-N and SON depended not only on soil N content but also on rainfall rate and duration. Leaching of NO-N from the cottonwood plantation was about two times higher than that of SON. The relative monthly rate of N leaching was NO-N > SON > NH-N. This study suggests that the STELLA model developed is a useful tool for estimating water and N dynamics from a woody crop plantation.

  3. Association of Apo-E gene polymorphism with biochemical and lipid metabolism parameters in patients with diabetic nephropathy of Hui and Han populations in Gansu Province

    Institute of Scientific and Technical Information of China (English)

    郭茜

    2006-01-01

    Objective To study the association of apolipoprotein (Apo) E gene polymorphism with difference in biochemical metabolism of diabetic nephropathy of Hui and Han populations. Methods ApoE genotype was determined by PCR-RFLP in diabetic patients with or without diabetic nephropathy (DN) and normal peoples in Hui and Han peoples, the related biochemical parameters were simultaneously detected. Results (1) Huis had 3 genotypes, i. e. E2/E3, E3/E3 and E3/E4, and their fre-

  4. 张惠言的《花间》词学接受及其意义%ZHANG Hui-yan’ s ci Reception of Huajian and Its Significance

    Institute of Scientific and Technical Information of China (English)

    梅向东

    2013-01-01

    《花间》词学接受至清代的张惠言才有了一个深刻的变化。基于“以《国风》、《离骚》之旨趣,铸温、韦、周、辛之面目”的词学策略,张氏对《花间》采取了故意误读、文本支离和点石成金的接受方式,正是由于其重读《花间》和重释温庭筠,古典词学至常州词派实际上经历了从传统的为词之学向读词之学的转变。%A great change happened in ZHANG Hui-yan’s ci reception of Huajian in the Qing Dynasty.Based on the ci strat-egy of “showing the true appearance of WEN Ting-yun, WEI Zhuang, ZHOU Bang-yan and XIN Qi-ji with Guo Feng and Li Sao as the purport”, ZHANG Hui-yan received Huajian through intentional misreading and deconstruction, thus working miracles.It is because of his reinterpretation of Huajian and WEN Ting-yun that the change of classical ci from its ontology to its reading occurred in the Changzhou ci school.

  5. Les Totonaques aujourd’hui, entre crise du développement et nouvelles revendications

    Directory of Open Access Journals (Sweden)

    Nicolas Ellison

    2007-02-01

    Full Text Available La population de langue totonaque, qui compte aujourd’hui un peu plus de 400,000 locuteurs, se concentre principalement dans le nord-est de l’Etat de Puebla et le centre-nord de l’Etat de Veracruz. C’est la région du Totonacapan, le « pays totonaque ». La langue totonaque constitue avec le tepehua un groupe isolé, mais on sait que les Totonaques ont participé à la construction des fameuses pyramides de Teotihuacan (au nord de Mexico avant de s’installer sur le pourtour du Golfe du Mexique, ...

  6. Hommage à Gilles Chomer : L’Enfant Jésus retrouvé au Temple, un nouveau Stella dans les Pyrénées

    Directory of Open Access Journals (Sweden)

    Bertrand Ducourau

    2012-04-01

    Full Text Available Figure 1Jacques Stella, L’Enfant Jésus retrouvé au Temple, Saint–Béat, trésor de l’église (dépôt de la municipalité de FosPhot. André Mielniczek © Ministère de la culture, DRAC Midi–Pyrénées, 2000La redécouverte de cette toile séduisante, mise en dépôt dans le trésor de l’église de Saint–Béat (Haute–Garonne par la municipalité de Fos, ajoute une nouvelle version à un groupe de peintures dérivant toutes du chef-d'œuvre de Jacques Stella (1596–1657, peint vers 1642 pour le noviciat des jésui...

  7. The Self-Calibration Test of flowmeter installed in STELLA(Sodium Integral Effect Test Loop for Safety Simulation and Assessment) facility

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Minhwan; Jeong, Ji-Young [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2015-10-15

    The objective of this study is to describe the procedure of the self-calibration test for the flowmeters and to analyze the result of the test. In this work, the test procedure of the self-calibration of two flowmeters (FT-101, FT-102) installed in STELLA facility was described and the test result was analyzed. In regard to the long-term SFR development plan, a large-scale sodium thermal-hydraulic test project is being progressed by KAERI. This project is called STELLA (Sodium Integral Effect Test Loop for Safety Simulation and Assessment), and it is proceeding by adopting the QA (Quality Assurance) program. Due to the specificity of an experiment using sodium(Na) categorized as Class 3(pyrophoric material and water-prohibiting substance) by the Safety Control of Dangerous Substances Act, it is necessary to apply QA in consideration of the sodium experiment environment in certain parts. The one of them is about calibration of measuring instrument such as a flowmeter, thermocouple and pressure gauge. It is described in the QAP (Quality Assurance Procedures) of KAERI that calibration work should be conducted in accordance with self-calibration procedures in a special case where conventional calibration is not practicable. The calibration of two flowmeters (FT-101, FT-102) installed in STELLA facility is the typical example. As a result of test, it was confirmed that the flowmeters meet the pass criterion. Therefore, it was concluded that the flowmeters maintain instrument capacity a year ago.

  8. Comparison of the HUI3 and the EQ-5D-3L in a nursing home setting

    Science.gov (United States)

    2017-01-01

    Background Accurately assessing changes in the quality of life of older people living permanently in nursing homes is important. The multi-attribute utility instrument most commonly used and recommended to assess health-related quality of life in the nursing home population is the three-level EuroQol EQ-5D-3L. To date, there have been no studies using the Health Utilities Index Mark III (HUI3). The purpose of this study was to compare the level of agreement and sensitivity to change of the EQ-5D-3L and HUI3 in a nursing home population. Methods EQ-5D-3L and HUI3 scores were measured as part of a cluster randomised controlled trial of nurse led care coordination in a nursing home population in Perth, Western Australia at baseline and 6-month follow up. Results Both measures were completed for 199 residents at baseline and 177 at 6-month follow-up. Mean baseline utility scores for EQ-5D-3L (0.45; 95% CI 0.41–0.49) and HUI3 (0.15; 95% CI 0.10–0.20) were significantly different (Wilcoxon signed rank test, p<0.01) and agreement was poor to moderate between absolute scores from each instrument (intra-class correlation coefficient = 0.63). The EQ-5D-3L appeared more sensitive to change over the 6-month period. Conclusion Our findings show that the EQ-5D-3L and HUI3 estimate different utility scores among nursing home residents. These differences should be taken into account, particularly when considering the implications of the cost-effectiveness of particular interventions and we conclude that the HUI3 is no better suited to measuring health-related quality of life in a nursing home population when compared to the EQ-5D-3L. PMID:28234983

  9. Donato GIANNOTTI, On the Florentine Republic, edited by Théa STELLA PICQUET, Rome, Aracne, 2011

    Directory of Open Access Journals (Sweden)

    Lucien FAGGION

    2011-01-01

    Full Text Available Précédée d’une introduction historique, riche et détaillée,consacrée à l’Italie au temps de la Renaissance (pp. I-LVI, l’édition du traité du Florentin Donato Giannotti (1492-1573,intitulé Della Repubblica fiorentina, composé de quatre livres, est proposée par Théa Stella Picquet, un texte d’une valeurinestimable fondé sur le manuscrit autographe (le code 230, Magliabechiano, classe XXX, qui constitue la dernière volontéde l’auteur florentin, un anti-médicéen déclaré qui passa la plus grande partie de son existence à Rome, auprès de ses protecteurs,d’abord du cardinal florentin Niccolò Ridolfi et, à la mort de celui-ci en février 1550, de François de Tournon, également cardinal.

  10. Effect of pulsed electric fields on the flavour profile of red-fleshed sweet cherries (Prunus avium var. Stella).

    Science.gov (United States)

    Sotelo, Kristine Ann Gualberto; Hamid, Nazimah; Oey, Indrawati; Gutierrez-Maddox, Noemi; Ma, Qianli; Leong, Sze Ying

    2015-03-23

    The aim of this research was to study the effect of pulsed electric fields (PEF) on the flavour profile of red-fleshed sweet cherries (Prunus avium variety Stella). The cherry samples were treated at a constant pulse frequency of 100 Hz, a constant pulse width of 20 μs, different electric field strengths between 0.3 and 2.5 kV/cm and specific energy ranging from 31 to 55 kJ/kg. Volatile compounds of samples were analysed using an automated headspace solid phase microextraction (HS-SPME) method coupled with gas chromatography-mass spectrometry (GC-MS). A total of 33 volatile compounds were identified with benzaldehyde, hexanal, (E)-2-hexenal, (Z)-2-hexen-1-ol, and benzyl alcohol being the predominant volatiles in different PEF-treated samples. Aldehydes namely butanal, octanal, 2-octenal, and nonanal, and (Z)-2-hexen-1-ol increased significantly 24 h after PEF treatment at electric field strengths of more than 1.0 kV/cm. Samples incubated for 24 h after PEF treatment (S3) generated higher concentrations of volatiles than samples immediately after PEF treatments (S2). Quantitative results revealed that more flavour volatiles were released and associated with S3 samples after 24 h storage and S2 samples immediately after PEF both with the highest electric field intensities. Interestingly, this study found that the PEF treatments at the applied electric field strength and energy did not result in releasing/producing undesirable flavour compounds.

  11. [A preliminary report on the investigation of medicinal plant resources in the Liupan Mountains of Ningxia Hui Autonomous Region].

    Science.gov (United States)

    Zhang, Y; Pu, X; Sun, J; Zhang, G

    1990-02-01

    In this paper, 423 species of medicinal plants belonging to 94 families in Liupan Mountains of Ningzia Hui Autonomous Region have been reported, of which 403 species belonging to 79 families are medicinal spermatophytes. The paper may serve as a reference for medical authorities in developing and utilizing plant resources.

  12. STELLA software as a tool for modelling phosphorus removal in a constructed wetland employing dewatered alum sludge as main substrate.

    Science.gov (United States)

    Kumar, J L G; Wang, Z Y; Zhao, Y Q; Babatunde, A O; Zhao, X H; Jørgensen, S E

    2011-01-01

    A dynamic simulation model was developed for the removal of soluble reactive phosphorus (SRP) from the vertical flow constructed wetlands (VFCW) using a dynamic software program called STELLA (structural thinking, experiential learning laboratory with animation) 9.1.3 to aid in simulating the environmental nature and succession of relationship between interdependent components and processes in the VFCW system. In particular, the VFCW employed dewatered alum sludge as its main substrate to enhance phosphorus (P) immobilization. Although computer modelling of P in treatment wetland has been well studied especially in recent years, there is still a need to develop simple and realistic models that can be used for investigating the dynamics of SRP in VFCWs. The state variables included in the model are dissolved phosphorus (DISP), plant phosphorus (PLAP), detritus phosphorus (DETP), plant biomass (PLBI) and adsorbed phosphorus (ADSP). The major P transformation processes considered in this study were adsorption, plant and microbial uptake and decomposition. The forcing functions which were considered in the model are temperature, radiation, volume of wastewater, P concentration, contact time, flow rate and the adsorbent (i.e., alum sludge). The model results revealed that up to 72% of the SRP can be removed through adsorption process whereas the uptake by plants is about 20% and the remaining processes such as microbial P utilization and decomposition, accounted for 7% SRP removal based on the mass balance calculations. The results obtained indicate that the model can be used to simulate outflow SRP concentration, and it can also be used to estimate the amount of P removed by individual processes in the VFCW using alum-sludge as a substrate.

  13. Effect of Pulsed Electric Fields on the Flavour Profile of Red-Fleshed Sweet Cherries (Prunus avium var. Stella

    Directory of Open Access Journals (Sweden)

    Kristine Ann Gualberto Sotelo

    2015-03-01

    Full Text Available The aim of this research was to study the effect of pulsed electric fields (PEF on the flavour profile of red-fleshed sweet cherries (Prunus avium variety Stella. The cherry samples were treated at a constant pulse frequency of 100 Hz, a constant pulse width of 20 μs, different electric field strengths between 0.3 and 2.5 kV/cm and specific energy ranging from 31 to 55 kJ/kg. Volatile compounds of samples were analysed using an automated headspace solid phase microextraction (HS–SPME method coupled with gas chromatography-mass spectrometry (GC–MS. A total of 33 volatile compounds were identified with benzaldehyde, hexanal, (E-2-hexenal, (Z-2-hexen-1-ol, and benzyl alcohol being the predominant volatiles in different PEF-treated samples. Aldehydes namely butanal, octanal, 2-octenal, and nonanal, and (Z-2-hexen-1-ol increased significantly 24 h after PEF treatment at electric field strengths of more than 1.0 kV/cm. Samples incubated for 24 h after PEF treatment (S3 generated higher concentrations of volatiles than samples immediately after PEF treatments (S2. Quantitative results revealed that more flavour volatiles were released and associated with S3 samples after 24 h storage and S2 samples immediately after PEF both with the highest electric field intensities. Interestingly, this study found that the PEF treatments at the applied electric field strength and energy did not result in releasing/producing undesirable flavour compounds.

  14. 品牌营销何以实现受众精确对接“Stella Luna+百度TV=成功网络营销”的案例解剖

    Institute of Scientific and Technical Information of China (English)

    马涛

    2008-01-01

    Stella Luna品牌源于著名全球前十大制鞋公司Stella International LTD。该品牌自2006年3月正式抢滩上海后,采用精耕细作的市场培育方式,经营稳健,在消费者中沉淀了众多良好口碑。在新一轮全国登陆战中,该品牌力邀创意名家操刀,打造了一款名为“眼球捕手”

  15. Association of TCF7L2 gene polymorphisms with susceptibility to type 2 diabetes mellitus in a Chinese Hui population.

    Science.gov (United States)

    Yang, Y; Xu, J R; Wang, Y J; Liu, X M

    2015-08-21

    Diabetes is one of costly chronic diseases. Previous studies across several ethnicities have shown that polymorphisms in the transcription factor 7-like 2 (TCF7L2) gene were strongly associated with susceptibility to type 2 diabetes (T2DM). In the present study, the association between the TCF7L2 gene and the susceptibility to T2DM in a Chinese Hui population was interrogated. Polymerase chain reaction (PCR)- restriction fragment length polymorphism analysis and allelic specific PCR were employed for examining the TCF7L2 gene rs12255372 (G>T) and rs290487 (C>T), and rs7901695 (T>C) polymorphisms, respectively, in 109 healthy individuals and 111 subjects with T2DM who were of Chinese Hui descent and lived in the Ningxia Hui Autonomous Region of China. The results showed that the genotypic frequency of rs290487 and the allelic frequency distributions of the rs7901695 and rs290487 loci were not significantly different between patients and controls in this population. However, both the genotypic and the allelic frequencies at rs12255372 exhibited statistical differences between the patients with T2DM and the unaffected cohort (P 2255372 locus in the patients was higher than that in healthy individuals (OR = 1.198, 95%CI = 1.097-1.307). These findings suggest that the TCF7L2 rs12255372 (G>T) polymorphism might be one of the most important genetic factors associated with T2DM susceptibility, and that individuals in the Chinese Hui population who carry a G allele at this locus might be at risk to develop T2DM.

  16. An Application Example Analysis of Quality Assurance Program for STELLA(Sodium Integral Effect Test Loop for Safety Simulation and Assessment) Project

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Minhwan; Gam, Dayoung; Eoh, Jae-Hyuk; Jeong, Ji-Young [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2015-05-15

    KAERI has been conducting various basic R and D activities in the field of nuclear technology. In addition, KAERI is now participating in the Generation IV International Forum (GIF), preparing for the development of key technologies for Generation IV nuclear energy system, including Sodium cooled Fast Reactor (SFR) development. All of the key technologies for SFR development need an appropriate level of QA activities to achieve the GIF safety and performance objectives. Therefore, QA activities have been conducted as an essential part of the national SFR project. As a result, QAM (Quality Assurance Manual) and QAP (Quality Assurance Procedures) have been developed for the SFR project, which are based on ASME NQA-1, KEPIC QAP and the GIF Quality Management System Guidelines. In this work, the introduction background and application examples of the QA program for the STELLA project were investigated. Application of the QA for the STELLA project has great significance because the QA has been mainly applied for the nuclear power plant area in operation, which helps ensure the reliability of the test data and completeness of the research performance. Nevertheless, developing more appropriate QA procedures remains a major task because some parts of them are not applicable to the Na-experiment.

  17. Le Dictionnaire québécois d’aujourd’hui : Enquête sur les registres

    Directory of Open Access Journals (Sweden)

    Marie-Cécile Guillot

    1999-12-01

    Full Text Available Abstract The Dictionnaire québécois d’aujourd’hui came out in 1992. The publication of this dictionary sparked a controversy on, among other things, word labeling. The language registers given for many words did not seem to reflect how Quebec francophones felt about them. The debate was such that, one year later, a second edition was produced. The main changes made concern the language registers of a number of entries, on which this time, Quebec francophones would agree. A survey was therefore carried out to determine whether the registers indicated in Le Dictionnaire québécois d’aujourd’hui correspond to Quebec francophones’ linguistic intuitions. A 50-word questionnaire was given to 150 respondents, who were asked to assign a language register to each word. The results of this survey have led to the conclusion that the registers given in Le Dictionnaire québécois d’aujourd’hui often do not correspond to the intuitions of Quebec francophones.

  18. Drought Adaptation in the Ningxia Hui Autonomous Region, China: Actions, Planning, Pathways and Barriers

    Directory of Open Access Journals (Sweden)

    Jianping Yang

    2015-11-01

    Full Text Available The Ningxia Hui Autonomous Region (NX region of Northwestern China is threatened by increased meteorological drought induced by climate change (CC and constraints on water supply from the Yellow River. Thus, the NX region is representative of attempts to adapt to CC and variability in China’s arid regions. Field visits, a questionnaire and in situ inspections were conducted in 2012–2014 to understand people’s perception and awareness of drought and its impact, particularly with respect to adaptation strategies. We mainly focused on drought adaptation actions and planning implemented at the government level under the double pressures of drought and allocation. We described a suitable adaptation pathway for socio-economic sustainable development and discussed existing adaptation barriers. Construction of modern efficient water-saving agriculture lies at the core of drought adaptation, with socio-economic sustainable development being the ultimate goal. To achieve this, policies and institutional, engineering, technological, structural and social initiatives and measures—classified into macro adaptation strategies and specific coping measures—are implemented. Adaptation often encounters obstacles, e.g., policy issues from household contract responsibility systems, funding difficulties of low-income farmers, traditional behavioral habits and low education and literacy levels among farmers. The adaptation pathway involves the construction of modern efficient water-saving agriculture. Agricultural water savings are then transferred to developed industries, which back-feed socio-economic sustainable development in the NX region.

  19. Marie Curie, les femmes et la science, d'hier à aujourd'hui

    CERN Document Server

    CERN. Geneva; Mariotti, Chiara; Vicinanza, Domenico

    2017-01-01

    Marie Curie, les femmes et la science, d'hier à aujourd'hui Conférence par Hélène Langevin-Joliot Avec la participation de l'Echo du Reculet de Thoiry. L'enregistrement et la liste d'attente sont déjà complets... Mais il n'est pas rare que des personnes réservent et ne viennent pas. Nous réassignerons les places libérées selon la règle "premier arrivé, premier inscrit". Au vu de la forte demande, la conférence sera également disponible en vidéoconférence : lien d'accès "webcast" disponible en bas de cette page. Hélène Langevin-Joliot, directrice de recherche émérite en physique nucléaire fondamentale au CNRS à Orsay, est aussi la fille de Frédéric et Irène Joliot-Curie (prix Nobel de chimie en 1935) et la petite-fille de Pierre Curie (prix Nobel de physique en 1903) et de Marie Curie (prix Nobel de physique en 1903 et prix Nobel de chimie en 1911). Hélène Langevin-Joliot nous parlera de sa vie scientifique, de l’histoire extraordinai...

  20. Marie Curie, les femmes et la science, d'hier à aujourd'hui - English

    CERN Document Server

    CERN. Geneva

    2017-01-01

    Marie Curie, les femmes et la science, d'hier à aujourd'hui Conférence par Hélène Langevin-Joliot Avec la participation de l'Echo du Reculet de Thoiry. L'enregistrement et la liste d'attente sont déjà complets... Mais il n'est pas rare que des personnes réservent et ne viennent pas. Nous réassignerons les places libérées selon la règle "premier arrivé, premier inscrit". Nous envisageons la possibilité de faire un webcast de la conférence. Plus d'information bientôt. Hélène Langevin-Joliot, directrice de recherche émérite en physique nucléaire fondamentale au CNRS à Orsay, est aussi la fille de Frédéric et Irène Joliot-Curie (prix Nobel de chimie en 1935) et la petite-fille de Pierre Curie (prix Nobel de physique en 1903) et de Marie Curie (prix Nobel de physique en 1903 et prix Nobel de chimie en 1911). Hélène Langevin-Joliot nous parlera de sa vie scientifique, de l’histoire extraordinaire de sa famille et en particulier du rôle des ...

  1. [Stabilization of the distal radioulnar joint by Hui-Lindscheid ligamentoplasty. Report of 10 cases].

    Science.gov (United States)

    Sénéchaud, C; Savioz, D; Della Santa, D

    1996-01-01

    The surgical treatment of chronic sprain of the distal radio-ulnar joint remains a difficult problem. Some authors have proposed a radio-ulnar stabilization procedure which involves some loss of mobility of the forearm. Other, more radical authors, have suggested partial or complete resection of the ulnar head. In this case, they restore mobility in prono-supination, but often with a loss of stability and discomfort or pain. Hui and Lindscheid modified a technique of tenodesis which had been previously proposed by Bunnell. They perfected a tenodesis based on the use of the flexor carpi ulnaris tendon. We feel that this procedure should ensure stability of the distal radio-ulnar joint, while preserving its mobility. We used this technique in 9 patients who were reviewed with a follow-up of 2.7 years. The authors obtained 2/3 of good and very good results. This procedure will be compared with other techniques currently used and differences of the results will be discussed. Unfortunately, few articles have been published on this subject.

  2. A Remote Sensing Model to Estimate Sunshine Duration in the Ningxia Hui Autonomous Region, China

    Institute of Scientific and Technical Information of China (English)

    朱晓晨; 邱新法; 曾燕; 高佳琦; 何永健

    2015-01-01

    Sunshine duration (SD) is strongly correlated with solar radiation, and is most widely used to estimate the latter. This study builds a remote sensing model on a 100 m × 100 m spatial resolution to estimate SD for the Ningxia Hui Autonomous Region, China. Digital elevation model (DEM) data are employed to refl ect topography, and moderate-resolution imaging spectroradiometer (MODIS) cloud products (Aqua MYD06−L2 and Terra MOD06−L2) are used to estimate sunshine percentage. Based on the terrain (e.g., slope, aspect, and terrain shadowing degree) and the atmospheric conditions (e.g., air molecules, aerosols, moisture, cloud cover, and cloud types), observation data from weather stations are also incorporated into the model. Verifi cation results indicate that the model simulations match reasonably with the observations, with the average relative error of the total daily SD being 2.21%. Further data analysis reveals that the variation of the estimated SD is consistent with that of the maximum possible SD; its spatial variation is so substantial that the estimated SD diff ers signifi cantly between the south-facing and north-facing slopes, and its seasonal variation is also large throughout the year.

  3. Land cover change during a period of extensive landscape restoration in Ningxia Hui Autonomous Region, China.

    Science.gov (United States)

    Cadavid Restrepo, Angela M; Yang, Yu Rong; Hamm, Nicholas A S; Gray, Darren J; Barnes, Tamsin S; Williams, Gail M; Soares Magalhães, Ricardo J; McManus, Donald P; Guo, Danhuai; Clements, Archie C A

    2017-11-15

    Environmental change has been a topic of great interest over the last century due to its potential impact on ecosystem services that are fundamental for sustainable development and human well-being. Here, we assess and quantify the spatial and temporal variation in land cover in Ningxia Hui Autonomous Region (NHAR), China. With high-resolution (30m) imagery from Landsat 4/5-TM and 8-OLI for the entire region, land cover maps of the region were created to explore local land cover changes in a spatially explicit way. The results suggest that land cover changes observed in NHAR from 1991 to 2015 reflect the main goals of a national policy implemented there to recover degraded landscapes. Forest, herbaceous vegetation and cultivated land increased by approximately 410,200ha, 708,600ha and 164,300ha, respectively. The largest relative land cover change over the entire study period was the increase in forestland. Forest growth resulted mainly from the conversion of herbaceous vegetation (53.8%) and cultivated land (30.8%). Accurate information on the local patterns of land cover in NHAR may contribute to the future establishment of better landscape policies for ecosystem management and protection. Spatially explicit information on land cover change may also help decision makers to understand and respond appropriately to emerging environmental risks for the local population. Copyright © 2017 Elsevier B.V. All rights reserved.

  4. Using Health Utility Index (HUI for Measuring the Impact on Health-Related Quality of Life (HRQL Among Individuals with Chronic Diseases

    Directory of Open Access Journals (Sweden)

    Frank Mo

    2004-01-01

    Full Text Available Quality of life is an important indicator in assessing the burden of disease, especially for chronic conditions. The Health Utilities Index (HUI is a recently developed system for measuring the overall health status and health-related quality of life (HRQL of individuals, clinical groups, and general populations. Using the HUI (constructed based on eight attributes: vision, hearing, speech, mobility, dexterity, cognition, emotion, and pain/discomfort to measure the HRQL for chronic disease patients and to detect possible associations between HUI system and various chronic conditions, this study provides information to improve the management of chronic diseases.This study is of interest to data analysts, policy makers, and public health practitioners involved in descriptive clinical studies, clinical trials, program evaluation, population health planning, and assessments. Based on the Canadian Community Health Survey (CCHS for 2000–01, the HUI was used to measure the quality of life for individuals living with various chronic conditions (Alzheimer/other dementia, effects of stroke, urinary incontinence, arthritis/rheumatism, bowel disorder, cataracts, back problems, stomach/intestinal ulcers, emphysema/COPD, chronic bronchitis, epilepsy, heart disease, diabetes, migraine headaches, glaucoma, asthma, fibromyalgia, cancers, high blood pressure, multiple sclerosis, thyroid condition, and other remaining chronic diseases. Logistic Regression Model was employed to estimate the associations between the overall HUI scores and various chronic conditions. The HUI scores ranged from 0.00 (corresponding to a state close to death to 1.00 (corresponding to perfect health; negative scores reflect health states considered worse than death. The mean HUI score by sex and age group indicated the typical quality of life for persons with various chronic conditions. Logistic Regression results showed a strong relationship between low HUI scores (≤ 0.5 and 0.06

  5. « Comment le sais-tu ? ». La paralepse, aujourd’hui

    Directory of Open Access Journals (Sweden)

    Frank Wagner

    2013-04-01

    Full Text Available À partir des définitions genettiennes de la paralepse (excès d’informations par rapport au code modal dominant, il s’agit de cerner les usages et les fonctions du procédé dans la littérature narrative d’aujourd’hui, en relation homo- ou hétérodiégétique, en régime fictionnel ou semi-fictionnel. Des exemples prélevés dans divers récits contemporains (de Roegiers, Toussaint, Carrère, Echenoz permettent de constater que la paralepse assure un renouvellement du soupçon à l’époque actuelle, en jouant un rôle de révélateur épistémologique. En effet, ce procédé narratif paradoxal engage une réflexion en acte sur la fiction, son perspectivisme, ses capacités de modélisation, et ses pouvoirs heuristiques.Based upon Gerard Genette’s definitions of paralepsis, (information exceeding that normally offered by the dominant mode of narrative focalisation, this article seeks to outline the uses and functions of the device in contemporary narrative literature, through its homo and heterodiegetic positioning in both fictional and semi-fictional texts. Examples taken from a variety of contemporary stories (Roegiers, Toussaint, Carrère, Echenoz allow us to see that paralepsis plays a role of epistemological indicator, facilitating a contemporary renewal of suspicion (le soupçon concerning narration. In fact, this paradoxical narrative device brings about a reflection upon fiction, its perspectivism, its modelling capabilities and heuristic capacities.

  6. Impact of "Grain to Green" Programme on echinococcosis infection in Ningxia Hui Autonomous Region of China.

    Science.gov (United States)

    Cleary, Eimear; Barnes, Tamsin S; Xu, Yangyang; Zhao, Hengbo; Clements, Archie C A; Gray, Darren J; McManus, Donald P; Atkinson, Jo-An M; Williams, Gail M; Yang, YuRong

    2014-10-15

    Cystic echinococcosis (CE) is endemic among the human population of Xiji County, Ningxia Hui Autonomous Region, China, where the prevalence is estimated to be between 2.2% and 3.6%. Government-run sheep abattoirs in Xiji County have closed in recent years and, as a consequence, slaughter is carried out mostly at rural market places. The market place in Xinglong Township, Xiji County, is home to an increasing number of stray dogs and the lack of government control over slaughter practices potentially favours Echinococcus granulosus transmission. A survey of sheep, goats and cattle reared in Xiji County was conducted in Xinglong Market and Xinglong Township to determine prevalence and transmission dynamics of E. granulosus infection. The liver and lungs of all livestock aged one year and older were examined macroscopically post mortem; visual examination and palpation of organs determined overall prevalence of E. granulosus. Cysts consistent in appearance with E. granulosus were observed in 2/184 sheep (prevalence 1.0%) and 1/55 of the cattle examined (prevalence 1.8%); 0/13 goats were found to be infected. However, microscopic examination of these suspected cysts failed to confirm these samples as E. granulosus, giving a prevalence of confirmed infection of zero percent in all three species. The prevalence of liver fluke was 61.3% in sheep and 12.7% in cattle with a significant difference between males and females (p ≤ 0.001). Considering the high prevalence of echinococcosis in the local human population, the absence of CE observed among commercially slaughtered livestock was surprising. Several explanations for this discrepancy and their implications are proposed.

  7. [Carbon sequestration status of forest ecosystems in Ningxia Hui Autonomous Region].

    Science.gov (United States)

    Gao, Yang; Jin, Jing-Wei; Cheng, Ji-Min; Su, Ji-Shuai; Zhu, Ren-Bin; Ma, Zheng-Rui; Liu, Wei

    2014-03-01

    Based on the data of Ningxia Hui Autonomous Region forest resources inventory, field investigation and laboratory analysis, this paper studied the carbon sequestration status of forest ecosystems in Ningxia region, estimated the carbon density and storage of forest ecosystems, and analyzed their spatial distribution characteristics. The results showed that the biomass of each forest vegetation component was in the order of arbor layer (46.64 Mg x hm(-2)) > litterfall layer (7.34 Mg x hm(-2)) > fine root layer (6.67 Mg x hm(-2)) > shrub-grass layer (0.73 Mg x hm(-2)). Spruce (115.43 Mg x hm(-2)) and Pinus tabuliformis (94.55 Mg x hm(-2)) had higher vegetation biomasses per unit area than other tree species. Over-mature forest had the highest arbor carbon density among the forests with different ages. However, the young forest had the highest arbor carbon storage (1.90 Tg C) due to its widest planted area. Overall, the average carbon density of forest ecosystems in Ningxia region was 265.74 Mg C x hm(-2), and the carbon storage was 43.54 Tg C. Carbon density and storage of vegetation were 27.24 Mg C x hm(-2) and 4.46 Tg C, respectively. Carbon storage in the soil was 8.76 times of that in the vegetation. In the southern part of Ningxia region, the forest carbon storage was higher than in the northern part, where the low C storage was mainly related to the small forest area and young forest age structure. With the improvement of forest age structure and the further implementation of forestry ecoengineering, the forest ecosystems in Ningxia region would achieve a huge carbon sequestration potential.

  8. STELLA Experiment - Microbunch Diagnostic

    Energy Technology Data Exchange (ETDEWEB)

    He, P.; Liu, Y.; Cline, D. B.; Babzien, M.; Gallardo, J. C.; Kusche, K. P.; Pogorelsky, I. V.; Skaritka, J.; van Steenbergen, A.; Yakimenko, V.; Kimura, W. D.

    1998-07-01

    A microbunch diagnostic system is built at the Accelerator Test Facility (ATF) of Brookhaven National Laboratory for monitoring microbunches (10-fs bunch length) produced by the Inverse Free Electron Laser accelerator in Staged Electron Laser Acceleration experiment. It is similar to one already demonstrated at the ATF. With greatly improved beam optics conditions higher order harmonic coherent transition radiation will be measurable to determine the microbunch length and shape.

  9. Genetic diversity and haplotype structure of 24 Y-chromosomal STR in Chinese Hui ethnic group and its genetic relationships with other populations.

    Science.gov (United States)

    Zhu, Bo-Feng; Zhang, Yu-Dang; Liu, Wen-Juan; Meng, Hao-Tian; Yuan, Guo-Lian; Lv, Zhe; Dong, Nan; Li, Qiong; Yang, Chun-Hua; Zhang, Yu-Hong; Hou, Yin-Ling; Qian, Li; Fan, Shuan-Liang; Xu, Peng

    2014-07-01

    In the present study, 24 Y-chromosomal short tandem repeat (Y-STR) loci were analyzed in 115 unrelated Hui male individuals from Haiyuan county or Tongxin county, Ningxia Hui Autonomous Region, China, to evaluate the forensic application of the 24 STR loci and to analyze interpopulation differentiations by making comparisons between the Hui group data and previously published data of other 13 populations. A total of 115 different haplotypes were observed on these 24 Y-STR loci. The gene diversities ranged from 0.4049 (DYS437) to 0.9729 (DYS385a, b). The overall haplotype diversity was 1 at AGCU 24 Y-STR loci level, while the values were reduced to 0.999237, 0.996949, and 0.996644 at the Y-filer 17 loci, 11 Y-STR loci of extended haplotype and 9 Y-STR loci of minimal haplotype levels, respectively; whereas, haplotype diversity for additional 7 loci (not included in Y-filer 17 loci) was 0.995271. The pairwise FST , multidimensional scaling plot and neighbor-joining tree indicated the Hui group had the closest genetic relationship with Sala in the paternal lineage in the present study. In summary, the results in our study indicated the 24 Y-STRs had a high level of polymorphism in Hui group and hence could be a powerful tool for forensic application and population genetic study.

  10. Prospective Randomized Trial Comparing Transperitoneal Versus Extraperitoneal Laparoscopic Aortic Lymphadenectomy for Surgical Staging of Endometrial and Ovarian Cancer: The STELLA Trial.

    Science.gov (United States)

    Díaz-Feijoo, Berta; Correa-Paris, Alejandro; Pérez-Benavente, Assumpció; Franco-Camps, Silvia; Sánchez-Iglesias, José Luis; Cabrera, Silvia; de la Torre, Javier; Centeno, Cristina; Puig, Oriol Puig; Gil-Ibañez, Blanca; Colas, Eva; Magrina, Javier; Gil-Moreno, Antonio

    2016-09-01

    There is an ongoing debate on which approach, transperitoneal or extraperitoneal, is superior for the performance of laparoscopic aortic lymphadenectomy (LPA-LND) for the surgical staging of gynecologic cancer. A prospective randomized trial (STELLA trial) was designed to compare the perioperative outcomes and node retrieval of extraperitoneal versus transperitoneal aortic lymphadenectomy by laparoscopy or robot-assisted laparoscopy. Patients with endometrial or ovarian carcinoma requiring aortic lymphadenectomy for surgical staging were randomized to an extraperitoneal or transperitoneal approach by laparoscopy or robot-assisted laparoscopy between June 2012 and July 2014. A total of 60 patients were entered into the study, 48 with endometrial cancer (80 %) and 12 with ovarian cancer (20 %). Thirty-one patients (51.6 %) were randomly assigned to the extraperitoneal group and 29 to the transperitoneal group (48.3 %). The means LPA-LND operating time was 90 min in both group (p = 0.343). The mean (range) blood loss was 105 (10-400) mL for extraperitoneal versus 100 (5-1000) mL for transperitoneal group (p = 0.541). There were no differences in the number of collected lymph nodes between the two groups [median (range) for extraperitoneal 12 (4-41) vs. 13 (4-29) for transperitoneal (p = 0.719)]. The extraperitoneal and transperitoneal approaches for laparoscopic and robotic aortic lymphadenectomy provide similar perioperative outcomes and nodal yields. The STELLA trial is registered at the US National Institutes of Health (ClinicalTrials.gov) #NCT01810874.

  11. PROMINENT PERSONNEL YIN Hui-jin(殷惠军)——An Outstanding Cardiologist of Integrative Medicine

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    @@ Prof.YIN Hui-jin,Ph.D.,male,was born on March 26,1971 in Ningxia.He graduated from Ningxia Medical College in 1994 with a 5-year course and got a bachelor degree,and then further studied in Heilongjiang University of Traditional Chinese Medicine from 1994 to 2000 for master and Ph.D.degrees.And then he worked in postdoctoral mobile working station of Open Laboratory of Heredity and Molecule Development Biology of China Academy of Science from 2000 to 2002.

  12. Sur l’emploi des toponymes du Kosovo-Metohija en français d’aujourd’hui

    OpenAIRE

    Stanković Selena

    2015-01-01

    Dans cet article, nous analysons l’emploi des noms de lieux du Kosovo-Metohija en langue française depuis la fin du XXe siècle jusqu’à aujourd’hui. La période citée se caractérise par un vaste usage de l’albanais et de l’anglais et par un usage très réduit du serbe dans la communication publique et officielle au Kosovo-Metohija. Les instances internationales admettent le changement de désignations toponymiques et la suppression des noms basés sur un context...

  13. Transaction Pattern Based on Secondary Clientelism, Business Ideology and Market Development: The case of lime market in Hui Town

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Secondary clientelism is a special exchange relationship derived from primary clientelism. The market with transactions dependent on the secondary clientelism would be”because of”erembeddedness”. Using the lime market in Hui Town as a case, this paper tries to explore why this kind of markets could achieve market order from the perspective of the interconnection of market structure and market culture. Analysis demonstrates that, the coupling induction of structural embeddedness and cultural embeddedness is the deeper mechanism for the market development. Although the new business ideology and transactional dependence on networks originate from market structural transitions, active construction and choice behaviors of the manufacturers still manifest great importance.

  14. 明清徽州火灾及徽商的救助%Fire Disasters in Hui Region and Hui Business People’ s Relief in Ming and Qing Dynasties

    Institute of Scientific and Technical Information of China (English)

    骆辉仔

    2014-01-01

    The fire disasters in Hui region are usually seasonal and regional though it may caused by people or nature .The fire disaster here is partly due to its own characters .The busi-ness people of Hui were humanistic and often provided aid for precaution and relief after disas -ters and therefore ease the disasters .%徽州地区的火灾具有季节集中性和地点集中性,发生的原因有人为的,也有自然的。由于徽州地区自身因素,徽州火灾的危害也极为严重。然而,具有儒士品格的徽商在火灾发生之前的预防举措和灾后的救助,使这里的火灾受害程度得以减轻。徽商对徽州地区火灾救助给予了很大的帮助。

  15. A Novel Pharmacological Method to Study the Chinese Medicinal Formula Hua-Zheng-Hui-Sheng-Dan

    Directory of Open Access Journals (Sweden)

    Rui Cao

    2015-01-01

    Full Text Available Objectives. Hua-Zheng-Hui-Sheng-Dan (HZHSD was used as an experimental model to explore research methods of large formulae in traditional Chinese medicine (TCM using current molecular biology approaches. Materials and Methods. The trypan blue exclusion assay was used to determine cell viability and cell numbers. Flow cytometry was used to assess cell cycle distribution and apoptosis. The concentration of cyclin D1 was analyzed by enzyme-linked immunosorbent assay. The median effect principle was used in drug combination studies. An orthogonal experimental design was used to estimate the effects of each herb at different concentrations. The HeLa xenograft mouse model was used to compare the antitumor activity of drugs in vivo. Results. Among the 35 herbs that comprise HZHSD, Radix Rehmanniae Preparata (RRP, Caesalpinia sappan (CS, Evodia rutaecarpa (ER, Folium Artemisiae Argyi (FAA, Leonurus japonicus Houtt (LJH, Tumeric (Tu, Radix Paeoniae Alba (RPA, and Trogopterus Dung (TD effectively inhibited the proliferation of HeLa and SKOV3 cells. Only RRR had an effect on HeLa and SKOV3 cell viability. According to the median effect principle, Angelica sinensis (Oliv. (AS, Tabanus (Ta, and Pollen Typhae (PT, which were proven to have a significant synergistic inhibitory effect on the proliferation of HeLa cells, were added to the original eight positive herbs. The combination of RPA and AS had a synergistic effect on inducing cell cycle S phase arrest and decreasing intracellular cyclin D1 in HeLa cells. By orthogonal experimental design, LJH and Tu were considered unnecessary herbs. The small formula (SHZHSD consisted of RPA, AS, RRR, Ta., TD, PT, ER, CS, and FAA and was able to inhibit cell proliferation and induce cell apoptosis. The antitumor effects of HZHSD and SHZHSD were also compared in vivo. Conclusions. Through molecular biology approaches both in vitro and in vivo, research into single drugs, and analysis using the median effect principle

  16. Evidence for enhanced mixing on the super-meteoritic Li-rich red giant HD 233517

    Science.gov (United States)

    Strassmeier, K. G.; Carroll, T. A.; Weber, M.; Granzer, T.

    2015-02-01

    Context. HD 233517 is among the most Li-rich stars in the sky. It is a rapidly rotating, single K giant thought to be on its first ascent on the red giant branch. The star has also the highest known infrared excess among any of the known first-ascent giants. Aims: We revisit the physical parameters of the system and aim to map its surface temperature distribution. Methods: New time-series photometry and high-resolution spectroscopy were obtained with our robotic facilities STELLA and Amadeus Automatic Photoelectric Telescope (APT) in 2007-2011. Inverse line-profile modelling is performed on a total of 167 échelle spectra and six Doppler images are presented. Results: Light and radial-velocity variations suggest a stellar rotation period of 47.6±0.3 d. The atmospheric parameters agree with previous studies and verify a super-meteoritic log 7Li abundance of 4.29±0.10 with undetected 6Li, while the metals are generally deficient by -0.4 dex with respect to the Sun. We determine a lower than normal isotopic carbon ratio of 12C/13C = 9+4-2. Our Doppler images indicate warm and cool spots with an average temperature contrast of just ±65 K with respect to the effective temperature. Doppler maps from Li i 670.78 reveal practically identical surface morphology, with a higher average contrast of ±160 K and errors that are five times larger. Reconstructions with simultaneously 1617 and 3007 spectral lines showed both a signal degradation with respect to our 56-line final image. An error analysis indicates an average temperature error per surface pixel of just ±4 K. Conclusions: HD 233517 appears to be an old (≈10-Gyr) single 0.95-M⊙ giant currently undergoing mild mass loss in the form of a wind. The cool and warm photospheric features are interpreted to be merely locations of suppressed and enhanced convection, respectively, probably intermingled by a yet undetected weak magnetic field. The low carbon-isotope ratio is indicative of extra mixing rather than of an

  17. Hawaii Utility Integration Initiatives to Enable Wind (Wind HUI) Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Dora Nakafuji; Lisa Dangelmaier; Chris Reynolds

    2012-07-15

    monitoring using PMU devices and enhanced grid analysis tools; and Initiative 3: Identifying grid automation and smart technology architecture retrofit/improvement opportunities following a systematic review approach, inclusive of increasing renewables and variable distributed generation. Each of the initiative was conducted in partnership with industry technology and equipment providers to facilitate utility deployment experiences inform decision making, assess supporting infrastructure cost considerations, showcase state of the technology, address integration hurdles with viable workarounds. For each initiative, a multi-phased approach was followed that included 1) investigative planning and review of existing state-of-the-art, 2) hands on deployment experiences and 3) process implementation considerations. Each phase of the approach allowed for mid-course corrections, process review and change to any equipment/devices to be used by the utilities. To help the island grids transform legacy infrastructure, the Wind HUI provided more systematic approaches and exposure with vendor/manufacturers, hand-on review and experience with the equipment not only from the initial planning stages but through to deployment and assessment of field performance of some of the new, remote sensing and high-resolution grid monitoring technologies. HELCO became one of the first utilities in the nation to install and operate a high resolution (WindNet) network of remote sensing devices such as radiometers and SODARs to enable a short-term ramp event forecasting capability. This utility-industry and federal government partnership produced new information on wind energy forecasting including new data additions to the NOAA MADIS database; addressed remote sensing technology performance and O&M (operations and maintenance) challenges; assessed legacy equipment compatibility issues and technology solutions; evaluated cyber-security concerns; and engaged in community outreach opportunities that will

  18. Hawaii Utility Integration Initiatives to Enable Wind (Wind HUI) Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Dora Nakafuji; Lisa Dangelmaier; Chris Reynolds

    2012-07-15

    monitoring using PMU devices and enhanced grid analysis tools; and Initiative 3: Identifying grid automation and smart technology architecture retrofit/improvement opportunities following a systematic review approach, inclusive of increasing renewables and variable distributed generation. Each of the initiative was conducted in partnership with industry technology and equipment providers to facilitate utility deployment experiences inform decision making, assess supporting infrastructure cost considerations, showcase state of the technology, address integration hurdles with viable workarounds. For each initiative, a multi-phased approach was followed that included 1) investigative planning and review of existing state-of-the-art, 2) hands on deployment experiences and 3) process implementation considerations. Each phase of the approach allowed for mid-course corrections, process review and change to any equipment/devices to be used by the utilities. To help the island grids transform legacy infrastructure, the Wind HUI provided more systematic approaches and exposure with vendor/manufacturers, hand-on review and experience with the equipment not only from the initial planning stages but through to deployment and assessment of field performance of some of the new, remote sensing and high-resolution grid monitoring technologies. HELCO became one of the first utilities in the nation to install and operate a high resolution (WindNet) network of remote sensing devices such as radiometers and SODARs to enable a short-term ramp event forecasting capability. This utility-industry and federal government partnership produced new information on wind energy forecasting including new data additions to the NOAA MADIS database; addressed remote sensing technology performance and O&M (operations and maintenance) challenges; assessed legacy equipment compatibility issues and technology solutions; evaluated cyber-security concerns; and engaged in community outreach opportunities that will

  19. CoRoT photometry and STELLA spectroscopy of an eccentric, eclipsing, and spotted HgMn binary with sub-synchronized rotation

    Science.gov (United States)

    Strassmeier, K. G.; Granzer, T.; Mallonn, M.; Weber, M.; Weingrill, J.

    2017-01-01

    Context. We report the discovery and analysis of very narrow transits in the eccentric spectroscopic binary HSS 348 (IC 4756). Aims: The aim is to characterize the full HSS 348 system. Methods: We obtained high-precision CoRoT photometry over two long runs and multi-epoch high-resolution échelle spectroscopy and imaging with STELLA. Standard radial-velocity extraction, spectrum synthesis, Fourier analysis, and light-curve inversions are applied to the data. Results: HSS 348 is found to be an eccentric (e = 0.18) double-lined spectroscopic binary with a period of 12.47 d in which at least the primary component is a peculiar B star of the HgMn class. The orbital elements are such that the system undergoes a grazing eclipse with the primary in front but no secondary eclipse. The out-of-eclipse light variations show four nearly equidistant but unequal minima stable in shape and amplitude throughout our observations. Their individual photometric periods are all harmonics of the same fundamental period which happens to agree with the transit period to within the errors. We interpret the fundamental period to be the rotation period of at least one if not both stars due to surface inhomogeneities. Due to the non-zero eccentricity of the orbit the two components are rotating sub-synchronously. Conclusions: It appears that HSS 348 is not a member of the IC 4756 cluster but a background B8+B8.5 binary system. Its sharp eclipses every 12.47 days just mimic a small-body transit but are in reality the grazing eclipses of a B-star binary and thus a classical false positive. The system seems to be pre-main sequence with the primary possibly just arrived on the ZAMS. The light curve with four unequal minima can be explained with four cool spots of different size equidistantly positioned in longitude. Our data do not allow to uniquely assign the spots to either of the two stars. The CoRoT space mission, launched on 2006 December 27, has been developed and is operated by CNES, with

  20. On the Outline Regarding Problems of the Hui Minority Muslim and its guidance in the Implementation of Yan' an Hui Policies%《关于回回民族问题的提纲》及其指导下的延安回族政策实践

    Institute of Scientific and Technical Information of China (English)

    张小军

    2012-01-01

    1940年,西工委拟定《关于回回民族问题的提纲》(下文简称《提纲》),标志着党对回族的政策达到较高水平。《提纲》系统阐发了党对回族的政策:建立民族自治制度,保障回族在政治上与汉族享有平等权利;成立专门管理机构来管理民族事务;组织成立回族文化救国团体;培养民族干部,发展回族教育事业,实行文化上的平等;尊重伊斯兰教,尊重回民生活习惯等。延安时期的回族政策与实践,为新时期回族政策与理论发展提供了鲜活的历史参考。%In 1940, the Central Northwest Working Committee drew up the Outline about Problems of Hui ( Outline), indicating the CPC' s advancement of Hui policies. The Outline systematically explained the purposes of the CPC' s Hui policies : to establish a system of regional ethnic autonomy ; to ensure equal rights between Hui and Han in politics ; to found specialized departments in charge of ethnic affairs ; to establish groups interested in the na- tional preservation of Hui culture ; to develop the ethnic - minority cadres ; to improve the Hui educational facilities ; to carry out the cultural equity; to respect Islam and the conventions of the Hui, and so on. The implementation of Hui policies during the period of Yan' an provides living historical reference to Hui policies and theoretical develop- ment in today' s era.

  1. Analysis on the Legislation of Hui Customs-Case from Ningxia Hui Autonomous Region%回族习惯立法分析--以宁夏回族自治区为例

    Institute of Scientific and Technical Information of China (English)

    黄爱学

    2013-01-01

    As an ethnic group believing in Islam , Hui people influenced by the Islamic law , have their own character-istic custom and concept of value .Based on the regulations of Constitutions and Autonomous Charter , the local law system formed gradually , including the marriage custom , Halal food , funeral custom and custom of holidays .The legislation of Hui custom is very meaningful for sustaining the ethnic relations of equality , mutual help and harmony .%回族是全民信仰伊斯兰教的民族,受伊斯兰教法影响,回族形成了自己特有的风俗习惯和价值观念。依据《宪法》和《民族区域自治法》规定,宁夏回族自治区自治机关在行使民族立法自治权过程中,逐步形成了保障回族宗教信仰和风俗习惯的法律体系,主要包括婚姻习惯、清真食品、丧葬习惯和节庆习惯等方面的地方性法规和地方政府规章。回族习惯立法对于巩固和发展平等、团结、互助、和谐的民族关系具有重要意义。

  2. An analysis of Hui national Wushu from the perspective of sociology%社会学视野下的回族武术初探

    Institute of Scientific and Technical Information of China (English)

    陈星潭

    2016-01-01

    以社会学视角对回族武术进行探讨,认为民族信仰、军事参与、生存张力等多重因素维持了回族尚武的传统。回族在日常生活中,借助身体圣行再现尚武秉性,并形成地方特色;通过拳种的传统再造,扩大民族间的认同,实现中华民族多元一体格局下的文化共生。%From the perspective of sociology, the author probed into Hui national Wushu, and put forward the fol-lowing opinions: multiple factors, such as national belief, military involvement and survival tension etc, have main-tained the warrior tradition of the Hui nationality; in the daily life of the Hui nationality, the Hui people reproduce their warrior nature by means of body ritual, having formed a local landscape, and expanded recognition between nationalities and realized cultural symbiosis under the all Chinese nations united situation through tradition repro-duction of boxing.

  3. An Survey of the Hui Chen You's Family During the Ming Dynasty%明朝回回人陈友家族考述

    Institute of Scientific and Technical Information of China (English)

    陈亮

    2012-01-01

    有明一代,涌现出一大批著名的回回军事家、政治家、外交家等等,他们对明朝的巩固与发展作出了巨大贡献和牺牲。"西域回回"陈友以出使起家,后因军功封为世爵,成为明朝回回人当中的标志性人物。对陈友个人及其家族成员的事迹考述,对研究明代回回人的历史活动以及历史作用有重要的价值。%During the Ming dynasty, there emerged many notable Hui militarists, politicians and diplomats who made a number of contributions at personal sacrifice in order to further the consolidation and development of the country. As a Serindia Hui, Chen You got his start from a career as a diplomat and was offered a marquis title on the basis of his military exploits. During the Ming Dynasty, he became an iconic figure amongst the Hui. Through this historical survey of Chen You and his family, we see the significant value he has with regard towards the histori- cal activity and influence of the Hui during the Ming dynasty.

  4. Business Ethics of The Hui Nationality & Its Contemporary Significance%回族的商业伦理思想及其当代意义

    Institute of Scientific and Technical Information of China (English)

    张晓华; 吕广文

    2012-01-01

      回族起源于唐宋时期阿拉伯地区的来华商人,是一个以商为本的民族。回族商人在长期的经济活动中形成了一套集法律、宗教、道德于一体的商业伦理思想,在这一独具特色思想的指导下,回民族的经济健康、有序地发展,民族不断繁荣强大。在今天的社会主义市场经济体制下,弘扬回族商业伦理思想,仍然具有十分重要的现实指导意义。%  The Hui Nationality originated from the Arabian merchants came to china in the Tang and Song Dynasties, it is a business-oriented nation. By the long-term economic activities, Hui merchants formed a set of business ethics incorporating the law, religion and morality. Under the guidance of this unique idea, Hui's economy achieves sound and orderly development, and their nation becomes more and more prosperous and powerful. In the context of today’s socialist market economic system, carrying forward the business ethics of the Hui Nationality sill has important practical and guiding significance.

  5. Analysis of the Ecological Migration Pattern in Ethnic Minority Areas——A Case Study of Ningxia Hui Autonomous Region

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    By taking Ningxia Hui Autonomous Region as an example,this paper analyzes the ecological migration pattern in ethnic minority areas.The basic patterns of development for poverty relief in Ningxia are in-situ migration and new area development pattern.The new area development pattern includes three types,namely small town development pattern around urban radiation districts,urban labor migration pattern,and large-scale ecological migration pattern.Finally,successful experience of ecological migration in Ningxia is summarized.First,scientific industrial planning shall be made on the basis of proper selection of ecological migration location in immigrant settlement regions.Second,scientific and comprehensive ecological migration policies should be formulated.

  6. La république en Grande-Bretagne aujourd’hui : une idée anglaise

    Directory of Open Access Journals (Sweden)

    Antoine MIOCHE

    2003-10-01

    Full Text Available Il peut paraître y avoir un paradoxe à parler de république aujourd’hui en Grande-Bretagne en ceci que seule ou presque la Grande-Bretagne, de ce qui fut le vaste Empire britannique, est demeurée une monarchie. Des États-Unis à la Rhodésie, en passant par l’Inde et l’Irlande (à l’exception importante du nord de l’île, les anciens territoires britanniques ont opté majoritairement pour un régime parlementaire non monarchique, l’Australie, le Canada et la Nouvelle-Zélande étant d’intéressantes ...

  7. Li(+) solvation in glyme-Li salt solvate ionic liquids.

    Science.gov (United States)

    Ueno, Kazuhide; Tatara, Ryoichi; Tsuzuki, Seiji; Saito, Soshi; Doi, Hiroyuki; Yoshida, Kazuki; Mandai, Toshihiko; Matsugami, Masaru; Umebayashi, Yasuhiro; Dokko, Kaoru; Watanabe, Masayoshi

    2015-03-28

    Certain molten complexes of Li salts and solvents can be regarded as ionic liquids. In this study, the local structure of Li(+) ions in equimolar mixtures ([Li(glyme)]X) of glymes (G3: triglyme and G4: tetraglyme) and Li salts (LiX: lithium bis(trifluoromethanesulfonyl)amide (Li[TFSA]), lithium bis(pentafluoroethanesulfonyl)amide (Li[BETI]), lithium trifluoromethanesulfonate (Li[OTf]), LiBF4, LiClO4, LiNO3, and lithium trifluoroacetate (Li[TFA])) was investigated to discriminate between solvate ionic liquids and concentrated solutions. Raman spectra and ab initio molecular orbital calculations have shown that the glyme molecules adopt a crown-ether like conformation to form a monomeric [Li(glyme)](+) in the molten state. Further, Raman spectroscopic analysis allowed us to estimate the fraction of the free glyme in [Li(glyme)]X. The amount of free glyme was estimated to be a few percent in [Li(glyme)]X with perfluorosulfonylamide type anions, and thereby could be regarded as solvate ionic liquids. Other equimolar mixtures of [Li(glyme)]X were found to contain a considerable amount of free glyme, and they were categorized as traditional concentrated solutions. The activity of Li(+) in the glyme-Li salt mixtures was also evaluated by measuring the electrode potential of Li/Li(+) as a function of concentration, by using concentration cells against a reference electrode. At a higher concentration of Li salt, the amount of free glyme diminishes and affects the electrode reaction, leading to a drastic increase in the electrode potential. Unlike conventional electrolytes (dilute and concentrated solutions), the significantly high electrode potential found in the solvate ILs indicates that the solvation of Li(+) by the glyme forms stable and discrete solvate ions ([Li(glyme)](+)) in the molten state. This anomalous Li(+) solvation may have a great impact on the electrode reactions in Li batteries.

  8. 试论《回回药方》治疗脑系疾病滴鼻剂的剂型特点%On Characteristics of Drug Forms of Nose Drops for Brain Disease in HuiHui YaoFang

    Institute of Scientific and Technical Information of China (English)

    刘耀龙; 马晓东; 丁小龙; 王佩佩; 贾孟辉

    2012-01-01

    Medical theory of Hui nationality, prescription names, formation, preparation and instruction of 19 recipes for brain disease from 12th remained volume "ZhongFengMen-ZuoTan YouHuang KouYan WaiXieLei" of HuiHui YaoFang were analyzed and concluded to explore characteristic of drug forms of nose drops and promote clinical application of external nose drops.%对残卷十二"众风门-左瘫右痪口眼歪斜类"治疗脑系疾病的19首滴鼻剂的回族医学理论、方剂名称、药物组成、制备服法进行分析、归纳和总结,探讨回族医学滴鼻剂的剂型特点,并在临床中推广使用.

  9. Presence of Li Clusters in Molten LiCl-Li

    Science.gov (United States)

    Merwin, Augustus; Phillips, William C.; Williamson, Mark A.; Willit, James L.; Motsegood, Perry N.; Chidambaram, Dev

    2016-05-01

    Molten mixtures of lithium chloride and metallic lithium are of significant interest in various metal oxide reduction processes. These solutions have been reported to exhibit seemingly anomalous physical characteristics that lack a comprehensive explanation. In the current work, the physical chemistry of molten solutions of lithium chloride and metallic lithium, with and without lithium oxide, was investigated using in situ Raman spectroscopy. The Raman spectra obtained from these solutions were in agreement with the previously reported spectrum of the lithium cluster, Li8. This observation is indicative of a nanofluid type colloidal suspension of Li8 in a molten salt matrix. It is suggested that the formation and suspension of lithium clusters in lithium chloride is the cause of various phenomena exhibited by these solutions that were previously unexplainable.

  10. Treatment response to LPV/r-based HAART in HIV-infected patients aged >60 years - data from the STAR/STELLA cohorts

    Directory of Open Access Journals (Sweden)

    C Koegl

    2012-11-01

    Full Text Available Purpose of the study: In Germany, older age is described as a risk factor for late presentation of HIV disease (defined as<200 CD4/μL or AIDS at diagnosis. We describe treatment outcomes with respect to age distribution at the time of antiretroviral therapy (ART initiation in the multicentre, observational, ongoing STAR and STELLA cohorts, which included patients (pts initiated on LPV/r-based ART. Methods: This analysis included ART-naïve HIV+ pts with a minimum of 48 weeks follow-up. Time to virologic response (defined as HIV1-RNA <50 c/mL and time to CD4 cell increase of at least 100/μL were calculated using Kaplan-Meier analyses. Virologic response rates at week 48 were evaluated using 2 approaches: i defining discontinuations for virologic or immunologic failure, side effects, noncompliance, or death as failures (ITT and ii as-treated (AT analysis excluding discontinuations for reasons other than virologic failure. Summary of results: 1011 ART-naïve pts were included (85% men; median age 43 years [y]. Baseline (BL characteristics and treatment response rates are shown in Table 1. The overall prevalence of advanced immunodeficiency with<200 CD4/μL at ART initiation was 48%:*Comparison across groups 64% in pts aged >60 y and 31%–49% in the younger age groups (see Table 1. Across age groups, 43%–60% of pts had pretreatment HIV1-RNA levels>100,000 c/mL. Median times to virologic response (Figure 1 and response rates at week 48 did not differ across age groups in either analysis, nor did immunologic outcomes. Median times to+100/μL CD4 increase were between 11.1 and 15.3 weeks. CD4 increase at week 48 was lower in pts >60 y compared to patients of younger age categories (165/μL vs 211/μL; P=ns. However, these differences between age groups did not reach statistical significance, even when stratified by baseline CD4 count

  11. BARCELONA & Li-Fi

    OpenAIRE

    Verdú Leal, Adrián

    2016-01-01

    Project focused on the study of the possibility of introducing the Li-Fi technology in the city of Barcelona as a pioneering example of Smart City. Proyecto enfocado al estudio de la posibilidad de implantar la tecnología Li-Fi en la ciudad de Barcelona como ejemplo pionero de Smart City. Projecte enfocat a l'estudi de la possibilidad d'implantació la tecnologia Li-Fi a la ciudad de Barcelona com exemple innovador de Smart City.

  12. 浅析回族服饰的文化象征性%Analysis of Cultural Symbolic Significance of the Hui Ethnic Dress

    Institute of Scientific and Technical Information of China (English)

    金婷

    2011-01-01

    回族作为以伊斯兰为民族文化根源的民族,在历史发展进程中呈现出伊斯兰教的内化与对汉族文化涵化同时发生而联系又紧密的特点。回族服饰具有伊斯兰文化与中华文化二元一体的结构特点,在伊斯兰文化语境下又体现出宗教文化的象征性。伊斯兰教的内化和汉族文化涵化构成了回族服饰文化的核心和其演变的主题。%The Hui ethnic group bases itself on Islam,presenting that Islamic internalization goes hand in hand with the Han ethnic cultural acculturation in the long development process.The Hui ethnic dress is featured by Islamic-Chinese culture integration.It represents both religious and cultural symbolic significance in the context of Islamic culture.Therefore,Islamic internalization and the Han ethnic cultural acculturation constitute the core of the Hui ethnic dress culture.

  13. [Tai ping sheng hui fang (Taiping Holy Prescriptions for Universal Relief) and the compilation during the early Song Dynasty].

    Science.gov (United States)

    Han, Yi

    2010-07-01

    Tai ping sheng hui fang, the first medical formulary of the Song Dynasty, compiled from the 3(rd) year of Taiping-xingguo reign to the 3(rd) year of Chunhua reign (978 ∼ 992), under the edict of the Taizong Emperor, was popularly applied and extensively circulated and called "the first formulary of the Dynasty". It is extremely significant in the medical history of the Song Dynasty due to its theory of prescription art, practical prescriptions and clinical practice. During the process of its circulation, different versions appeared, including the Guozijian Orthodox Version, Guozijian Small-character Version, Chongwen Hall Abridged Version, Newly Carved Version of Zhuanyunsi, and the Local Abridged Version, thus adapting to the demands of various walks of life in the society. Its unique role in the development of the Song society was founded by its introduction, application and popularization by the emperors, local officials, medical scholars, diplomatic envoys, and intellectuals. The "kind administration" of the authority and the government was further greatly facilitated by the involvement of the government and the introduction of printing. Its practical prescriptions became forceful tools to prevent and treat diseases, to conquer witchcraft, to protect local social security, and to pronounce the merits of officials and physicians at all levels.

  14. The prevalence of antibodies to Toxoplasma gondii in horses in Changji Hui Autonomous Prefecture, Xinjiang, northwestern China

    Directory of Open Access Journals (Sweden)

    Jin-Lei Wang

    Full Text Available Toxoplasmosis is a worldwide zoonosis caused by Toxoplasma gondii, which can infect warm-blooded animals and humans. The present study was performed to investigate the seroprevalence of T. gondii in horses in Xinjiang, northwestern China. A total of 637 blood samples were collected from seven regions in Changji Hui Autonomous Prefecture, Xinjiang in 2011 and assayed for T. gondiiantibodies using the modified agglutination test (MAT. Risk factors (age, gender, and region related to seroprevalence were determined by a multivariate logistic regression analysis. A total of 200 horses (31.4%, 95% CI 27.79–35.00 were seropositive for T. gondii. Age, gender, and region present no association with seroprevalence (p>0.05 in the logistic regression analysis. The results indicated that T. gondii is widely prevalent in horses in Xinjiang, northwestern China, representing a serious threat to animal and human health. Therefore, more careful measures should be performed to control and prevent T. gondii infection in horses from Xinjiang, northwestern China.

  15. Regional Evaluation of Wind Erosion of the Loess Plateau in Pengyang County, Ningxia Hui Autonomous Region, China

    Institute of Scientific and Technical Information of China (English)

    Sun Baoping; Ding Guodong; Li Yubao

    2003-01-01

    The loess plateau in China is well-known for its severe water erosion. A nationwide soil erosion survey discovered that wind erosion of the loess land is also greatly concerned. The severity of wind erosion for each land use in Pengyang County of Ningxia Hui Autonomous Region, China, was evaluated according to the national standard of soil erosion classification. The evaluation system includes a GIS database, an evaluation indicator system and a classification system for land and land use. The erodible nature of soil and annual soil loss of the most erodible land were obtained as follows: (1) Croplands plowed and harrowed in late autumn were the most erodible land,with an erosion intensity of medium grade and an erodible proportion of 46%; (2) The erodible proportion of natural grasslands was between 19.3% and 21.5%, whose erosion intensity was of mostly tolerable grade; (3) When it came to the whole county, there was 21.3% of the total area in tolerable grade in terms of wind erosion intensity, 42.1% slight and 34.8% medium.

  16. Temporal-Spatial Variation of Drought Indicated by SPI and SPEI in Ningxia Hui Autonomous Region, China

    Directory of Open Access Journals (Sweden)

    Chunping Tan

    2015-09-01

    Full Text Available The Ningxia Hui Autonomous Region of China (Ningxia is an important food production area in northwest China severely affected by drought. The Standardized Precipitation Index (SPI and Standardized Precipitation Evapotranspiration Index (SPEI were calculated based on monthly meteorological data to explore climate change and variation in drought intensity, duration, frequency, and spatial extent in Ningxia during 1972–2011. Results show that the SPEI is more applicable than the SPI for exploring climate change and drought variation in Ningxia. The Ningxia climate experienced a significant drying tendency. Annual SPEI decreased about 0.37 decade−1 during 1972–2011. Drought was exacerbated by this drying tendency. Regional average duration, maximum duration, intensity, and frequency of drought identified by the SPEI increased by one month, three months, 0.15%, and 36.1%, respectively, during 1992–2011 compared to the period of 1972–1991. The spatial extent of drought identified by the SPEI increased about 14.4% decade−1 in the spring during 1972–2011. Spatially, drought frequency increased from north to south. Average intensity (maximum duration of drought calculated by the SPEI increased (decreased northward and southward from the central arid area.

  17. 西北回族抗日史研究%On History of Resistance against Japanese Aggression of Northwest Hui Nationality

    Institute of Scientific and Technical Information of China (English)

    杨志平; 海万玲

    2015-01-01

    日本全面侵华后,由于兵力所限,虽未对西北地区进行地面武装侵扰,但通过军机轰炸、策划“回回国”阴谋等行径,对西北人民犯下了滔天罪行。在民族存亡之际,西北回族人民同全国各族人民一起在各条战线上展开了反侵略斗争,其中以回族、撒拉族、保安族等为主要成员的骑兵第一师、第81军在正面战场与日军展开了殊死较量,战绩辉煌。此外,回族民众还利用与中东伊斯兰国家的友好关系,开展民间外交奔赴中东地区传播抗日救亡思想并寻求国际支持与理解,宗教人士则通过自身声望影响穆斯林参军抗日,回族社团与报刊也充分发挥社会职责,揭露日本离间回汉关系、肢解中国的阴谋,鼓励回胞奔赴前线杀敌卫国,文艺工作者更是以各种文艺形式宣传抗日救亡思想。经过战争的洗礼,回族社会空前团结,爱国主义精神和国家认同感更加强烈。%After staging large-scale aggression war into China,though restricted by the lack of militar-y force,Japan had not staged land invasion into northwest China,they still conducted aerial bombing, schemed to establish"Huihui State",and committed serious crimes to the people there.At this criti-cal moment of death or life for the nation,along with all other nationalities,people of Hui nationality in northwest China launched the fight against Japanese aggression.The first cavalry division and 81th army (both mainly consisted of Hui,Sala,and Baoan nationalities)fought face-to-face against Japa-nese invaders and had extraordinary battle achievements.Besides,due to friendly relationship with Is-lamic nations in Mideast,people of Hui nationality went to Mideast to seek international support and understanding for this very cause.With their own influence,religious figures encouraged Muslims to join the arm.Societies and newspapers of Hui nationality played full social role to disclose

  18. 论STELLA软件在医学教育与研究领域中的应用%The Application of STELLA in the Field of Medical Education and Research

    Institute of Scientific and Technical Information of China (English)

    何建璋; 周毅; 杜守洪; 罗雪琼

    2013-01-01

    医学领域研究的是复杂动态系统,该类系统很多试验难以用常规方法实现。通过实例介绍了基于SD的建模仿真软件STELLA系统及其在医学教学和科研工作中的应用。利用STELLA系统动力学的方法来进行仿真研究可达到事半功倍的效果。%The medical field is a complex dynamic system, a lot of this kind of system test is difficult to use conventional methods. This article breaks down the modeling simulation software system-STELLA which is based on SD and its application in the medical teaching and research work, finally came to the conclusion that approach for studying the simulation conclusion with STELLA system can achieve twice the result with half the effort.

  19. Storylines of socio-economic and climatic drivers for land use and their hydrological impacts in alpine catchments - the STELLA project example

    Science.gov (United States)

    Strasser, Ulrich; Formayer, Herbert; Förster, Kristian; Marke, Thomas; Meißl, Gertraud; Schermer, Markus; Stotten, Friederike; Themessl, Matthias

    2016-04-01

    Future land use in Alpine catchments is controlled by the evolution of socio-economy and climate. Estimates of their coupled development should hence fulfill the principles of plausibility (be convincing) and consistency (be unambiguous). In the project STELLA, coupled future climate and land use scenarios are used as input in a hydrological modelling exercise with the physically-based, distributed water balance model WaSiM. The aim of the project is to quantify the effects of these two framing components on the future water cycle. The test site for the simulations is the catchment of the Brixentaler Ache in Tyrol/Austria (47.5°N, 322 km2). The so-called „storylines" of future coupled climate and forest/land use management, policy, social cooperation, tourism and economy have jointly been developed in an inter- and transdisciplinary assessment with local actors. The climate background is given by simulations for the A1B (temperature conditions like today in Merano/Italy, 46.7°N) and RCP 8.5 (temperature conditions like today in Bologna/Italy, 44.5°N) emission scenarios. These two climate scenarios were combined with three potential socio-economic developments („local"/„glocal"/ „superglobal"), each in a positive and in a negative specification. From these twelve storylines of coupled climate/land use future, a set of four storylines was selected to be used in transient hydrological modelling experiments. Historical simulations of the water balance for the test site reveal the pattern of land use being the most prominent factor for the spatial distribution of its components. A new prototype for a snow-canopy interaction simulation module provides explicit rates of intercepted and sublimated snow from the trees and stems of the different forest stands in the catchment. This new canopy module will be used to model the coupled climate/land use future storylines for the Brixental. The aim is to quantify the effects of climate change and land use on the water

  20. Study on mosque architectural form development of the Hui Nationality in the Yellow River Basin%黄河流域回族清真寺建筑形态发展研究

    Institute of Scientific and Technical Information of China (English)

    杨新新

    2015-01-01

    以中国黄河流域的回族聚居区为研究范围,以回族清真寺为研究对象,通过探讨黄河流域回族清真寺的建筑形态发展,分析了回族清真寺在我国回族穆斯林生活中的作用,并对其保护与发展措施进行了研究,以期为我国伊斯兰建筑艺术的研究和回族清真寺的发展提供参考。%Taking the Hui Nationality concentrated area of the Yellow River Basin in China as the research scope,taking the Hui Nationality mosque as the research target,through explores the architectural form development of the Hui Nationality mosque of the Yellow River Basin,the paper analyzes the role of the Hui Nationality mosque in domestic Muslim living,and studies its protection and development,with a view to pro-vide some guidance for domestic Muslim building arts research and the Hui Nationality mosque development.

  1. 恢刺法治疗急性肩周炎50例%Treatment of 50 Patients with Acute Shoulder Periarthritis by Hui Acupuncture

    Institute of Scientific and Technical Information of China (English)

    王孝艳; 张轶鸣; 贾延涛; 王慧; 岳全; 吴继开; 陈斯

    2015-01-01

    目的:观察恢刺法针刺阳陵泉、阿是穴治疗急性肩周炎的临床疗效。方法:将100例肩周炎患者随机分为治疗组,对照组。治疗组50例采用恢刺法针刺阳陵泉、阿是穴治疗;对照组50例采用常规针刺治疗。均每天针刺1次,疗程2周,观察其疗效。结果:治疗组疗效明显高于对照组。结论:恢刺法针刺阳陵泉、阿是穴治疗急性肩周炎可缓解疼痛,改善肩关节活动度,有较好疗效。%Objective:To observe the clinical effects on the acute shoulder periarthritis by Hui acupuncture at Yanglingquan point and Ashi point.Methods:100 patients were randomly divided into two groups:a treatment group and a control group.Among them, 50 patients in the treatment group were treated by Hui acupuncture at Yanglingquan point and Ashi point while other 50 patients in the control group received normal acupuncture treatment.During the two weeks’ treatment, all the patients were acupunctured once a day.Results:Patients in the treatment group felt much relieved than those in the control group.Conclusion:Hui acupuncture at Yan-glingquan point and Ashi point turns out to be a desirably effective way to treat acute shoulder periarthritis.

  2. Development obstacles of poor rural Hui ethnic females and its countermeasures: Based on survey data of 1 327 Hui ethnic females of Guanghe county%回族农村女性的发展障碍与应对策略——基于广河县1327名回族女性的调查

    Institute of Scientific and Technical Information of China (English)

    韩振兴; 韩建民

    2012-01-01

    Based on the survey data of 1 327 poor rural Hui ethnic females (over fourteen years old) of Guanghe county, Gansu province, this paper finds that due to the influence of traditional family value, poor healthy condition and poor exploitation of human resources, poor rural Hui women face many development obstacles such as their low status in the family, low educational background, little social participation. Hence, the writer proposes some countermeasures so as to promote the sound development of rural Hui women: to advocate new religion and family concept; to promote the education and training of the rural Hui women; to recognize the value of rural women's housework; to encourage them to engage in some small business and provide small loans to them.%基于甘肃广河县294户回族家庭1 327名回族女性(14岁以上)的调查发现,由于传统宗教家庭观念限制、身体健康水平欠佳以及人力资源的教育性开发不力等因素影响,回族农村女性面临诸多发展障碍,如家庭经济地位低下、文化程度不高、社会参与度低等。据此,应提倡新的宗教、家庭观念;加强回族农村女性教育,强化其农业科技知识培训;认定农村女性家务劳动的实际价值,鼓励其从事基本商业贸易并提供小额贷款倾斜政策,最终促进回族农村女性自身的良性发展。

  3. Dance Researcher Li Yayuan

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Li Yayuan, a dance researcher with the China National Song and Dance Ensemble,choreographs African-inspired dances. Over 40 years old,she performed and taught in African countries, traveling to Senegal to learn the country’s dances in 1990,

  4. With or without "Li."

    Science.gov (United States)

    Wang, Mingquan

    1990-01-01

    Demonstrates how the important distinction between the locative and nonlocative implication of a noun is essential for the presence of the Chinese locative particle "li," identifying groups of nouns that can not take the particle, nouns that optionally use the particle, and nouns that must use the particle. (CB)

  5. Appendix I3-1 to Wind HUI Initiative 1: AWST-WindNET-Phase 1 Final Report

    Energy Technology Data Exchange (ETDEWEB)

    John Zack

    2012-07-15

    This report is an appendix to the Hawaii WindHUI efforts to develop and operationalize short-term wind forecasting and wind ramp event forecasting capabilities. The report summarizes the WindNET Phase 1 efforts on the Big Island of Hawaii and includes descriptions of modeling methodologies, use of field validation data, results and recommendations. The objective of the WindNET project was to investigate the improvement that could be obtained in short-term wind power forecasting for wind generation facilities operating on the island grids operated by Hawaiian Electric Companies through the use of atmospheric sensors deployed at targeted locations. WindNET is envisioned as a multiphase project that will address the short-term wind forecasting issues of all of the wind generation facilities on the all of the Hawaiian Electric Companies' island grid systems. The first phase of the WindNET effort (referred to as WindNET-1) was focused on the wind generation facilities on the Big Island of Hawaii. With complex terrain and marine environment, emphasis was on improving the 0 to 6 hour forecasts of wind power ramps and periods of wind variability, with a particular interest in the intra-hour (0-1 hour) look-ahead period. The WindNET project was built upon a foundation that was constructed with the results from a previously completed observation targeting study for the Big Island that was conducted as part of a project supported by the National Renewable Energy Laboratory (NREL) and interactions with the western utilities. The observational targeting study provided guidance on which variables to measure and at what locations to get the most improvement in forecast performance at a target forecast site. The recommendations of the observation targeting study were based on the application two techniques: (1) an objective method called ensemble sensitivity analysis (ESA) (Ancell and Hakim, 2007; Torn and Hakim, 2008; Zack et al, 2010); and (2) a subjective method based on a

  6. 伊斯兰哲学宇宙论对回族传统宗教信仰文化的影响%Chinese Islamic Philosophy to Hui Traditional Cosmological Religious Beliefs Cultural Influence

    Institute of Scientific and Technical Information of China (English)

    邱双成; 崔华华

    2012-01-01

    伊斯兰哲学宇宙论与回族传统宗教信仰文化联系异常密切。回族传统宗教信仰文化的形成、内容以及形式等都深受伊斯兰哲学宇宙论的影响。对伊斯兰哲学宇宙论与回族传统宗教信仰文化的关系进行深入研究具有积极的意义。%Chinese Islamic philosophy cosmology and Hui traditional religious beliefs and cultural links are unusual close. Hui traditional religious cultural formation, religious belief culture content as well as religious cultural form etc all deeply influence of Chinese islamic philosophy cosmology. Islamic philosophy in China the hui traditional religion cosmology and in-depth study relation to culture has positive significance.

  7. 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.

  8. Van huis naar school.

    NARCIS (Netherlands)

    Levelt, P.B.M.

    1989-01-01

    In the Netherlands about two and a half million children are going each day to school as pedestrian, as cyclist or as moped- rider. It is important to remember that these children are forced by the society to go to school and the society has therefore the responsibility for the safe journey to schoo

  9. 回药少尼子的本草考证%Research on Materia Medica of Hui Herbal Medicine ShaoNiZi

    Institute of Scientific and Technical Information of China (English)

    杨丽娟; 何婷; 高如宏

    2016-01-01

    According to the record in YanXingLu, prophet Mohammed said Hui medicine can cure many of disease. So we made a research on materia medica of Hui Herbal Medicine ShaoNiZi in Huihui prescriptions from several aspects, including Species research, historical records, origin, chemical composition, pharmacological ef-fects, traditional and modern medicine usage, and security as well, and found that it is the dry mature seed of the Ra-nunculaceae Nigella sativa L. Because of its wide therapeutic range, safety and non-toxic, it values to research.%《言行录》记载回药少尼子能够治疗许多疾病。因此本研究从品种考证、历史记载、产地、化学成分、药理作用、传统及现代医学用法、安全性等方面对《回回药方》中少尼子进行本草考证研究,确定其为毛茛科植物家黑种草 Nigella sativa L.的干燥成熟种子,其治疗范围极其广泛,且安全无毒,具有很大的研究价值。

  10. The Banquet Music of Hui Nationality in the Inheritance and the Variation%回族宴席曲的传承及流变

    Institute of Scientific and Technical Information of China (English)

    张晓君

    2015-01-01

    回族宴席曲是西北流行的古老民间音乐形式,是我国民间音乐文化艺术的奇葩。它既保留了本民族的音乐特征又吸收了多民族音乐文化元素,演唱中自然夹杂了本民族语言及地方方言等词汇,特色鲜明,韵味独特。本文对回族宴席曲的传承和流变进行了概述,并通过典型的例子诠释了回族宴席曲的流变。%The Banquet music of Hui nationality is an ancient folk music in the northwest and a miracle of Chinese folk music culture .It retains the national music characteristics and absorbs other national music cultural elements ,singing naturally mixed with their native language and dialect ,which are distinctive and peculiar .In this paper ,the inheritance and evolvement of the Banquet music of Hui nationality are summa‐rized ,and the evolvement is interpreted by typical examples .

  11. Li-Fraumeni syndrome.

    Science.gov (United States)

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

    2016-06-03

    The Li-Fraumeni syndrome is characterized clinically by the appearance of tumors in multiple organs generally at an early age. This hereditary condition is caused by germinal mutations in the TP53 gene, which codifies for the tumoural suppressor gene p53. We present the case of a patient aged 31 with clinical and molecular diagnosis of Li-Fraumeni syndrome who presented two synchronous tumors: a leiomyosarcoma on the forearm and a phyllodes breast tumour. She had a family history of cancer, including a son diagnosed with a cortical adrenal carcinoma when he was three years old, who died at five from the disease. Furthermore, her maternal grandmother and great-grandmother died of stomach cancer at 56 and 60 years old, respectively, while her other great-grandmother and a great aunt presented with breast cancer at the ages of 60 and 40, respectively. After genetic counseling, complete sequencing and analysis of duplications and deletions in the TP53 gene were ordered prior to diagnosis. The molecular analysis of a DNA sample taken from peripheral blood lymphocytes revealed the germinal mutation c.527G>T (p.Cys176Phe) on exon 5 of the TP53 gene, a deleterious mutation described previously in tumoural tissues. To our knowledge, this is the first published case in Colombia of Li-Fraumeni syndrome with confirmed molecular diagnosis. The diagnosis and management of Li-Fraumeni syndrome should be performed by a multidisciplinary team, and genetic counselling should be offered to patients and their relatives.

  12. 甘肃临夏回族自治州回族老年人根面龋发病状况的抽样调查与分析%Incidence of root caries in Hui elderly people of Linxia Hui Autonomous Prefecture:a sampling survey

    Institute of Scientific and Technical Information of China (English)

    司庆宗; 安晓莉; 李淼; 马占海; 马玉梅; 赵望泓

    2012-01-01

    Objective To investigate the incidence of root caries in Hui elderly people of Linxia Hui Autonomous Prefecture, Gansu Province. Methods Root caries in 436 Hui elderly people aged 65 -74 years and their clinical examination were investigated with questionnaire by random sampling according to the third national oral health survey standards and methods. Results The incidence of root caries in Hui elderly people of Linxia Hui Autonomous Prefecture was 28. 90% , with mean number of root caries of 0. 42. No significant difference was found in the incidence of root caries between urban and rural areas and between male and female (P >0.05). The filling rate of root caries was only 0. 68%. The root caries index ( RCI) value was 2. 85% and 2.76% , respectively, in the distal and mesial surfaces. The RCI value was higher in maxillary teeth than in corresponding mandibular teeth. Root caries involving one root surface was detected in 88. 7% of Hui elderly people. Logistic regression analysis showed that frequency of teeth brushing and sugar food intake was closely related with the occurrence of root caries in Hui elderly people of Linxia Hui Autonomous Prefecture ( OR; 0. 492,95%C7:0.317 to 0.764,P =0.002;OR:l. 654,95%C/:1.033 to 2.648,P =0.036). Conclusion The incidence of root caries in Hui elderly people of Linxia Hui Autonomous Prefecture is low due to their good oral health and life habits. However, root caries is rarely treated, thus needing instructions on their oral health and taking more preventive measures against their oral diseases.%目的 了解并分析甘肃省临夏回族自治州回族老年人根面龋发病状况.方法 按照第三次全国口腔健康流行病学调查标准和方法,采用多阶段分层等容量随机抽样方法对436例临夏回族65 ~ 74岁老年人进行问卷调查及根面龋的口腔临床检查.结果 临夏市65 ~ 74岁回族老年人恒牙根面龋患病率为28.90%,龋均为0.42.患龋率和龋均在城乡和性别

  13. Legendary Story of Li Xiaoli

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    IN a building in Fangzhuang’s residentquarters lives an old woman of Chinesedescent.Not so unusual you would thinkexcept that she holds an American passportand all her descendants have typical Westemcountenances.This American Chinese womanis called Li Xiaoli. In 1916 Li Xiaoli,originally named LiYueying,was born into a rich and influentialfamily in Lishi,Shanxi Province.Her fatherjoined the army after the Revolution of 1911.

  14. 论回族的宗教信仰与养生保健%On Religious Beliefs and Health Preservation of Hui Group

    Institute of Scientific and Technical Information of China (English)

    朱国明

    2015-01-01

    In the perspective of Hui Muslims ,birth ,aging ,illness and death are the eternal laws of nature ,which are irresistible to human beings .Death of the mortal body is not the end but the continuum of human life and it may resurrect in the after life .Such a view of life has determined their ways of living different from Chinese Taoists who pursue immortal lives .The health preservation concepts of the Hui group are closely linked with their religious beliefs and living habits which influence their health values .From the perspective of traditional Chinese health preservation culture ,the religious activities and habits of Hui Muslims contain profound knowledge of health preservation .Meanwhile ,some of the wisdom and rationale can definitively serve as valuable guidance and inspiration for modern people in their pursuit of a healthy and satisfying life .%在回族穆斯林的思想观念中,生老病死是永恒的自然规律,不可抗拒。今世的死亡不是人生的结束,而是人生的继续,人的生命在后世还会复活。这样的生命观决定了他们不可能像中国道家一样去寻求长生不老的方式方法来延长自己的生命。回族穆斯林的养生保健,与他们的宗教信仰以及由其影响的健康生活习惯有密切的联系。在中国传统养生文化看来,回族穆斯林的宗教活动和日常生活习惯包含了丰富的养生之道。其中一些合理的观念和行为对当前人们的身心健康也具有重要的启示和借鉴作用。

  15. В преддверии темных ночей

    Index Scriptorium Estoniae

    2011-01-01

    Eesti Kunstiakadeemia tekstiilidisaini üliõpilaste töödest "Moonwalk" (autorid Stella Kalkun ja Luisa Aid), "RE:ME - remind me pillow" (autorid Heleri Alexandra Sits ja Signe Aasoja) ja "Volt" (autor Stella Kalkun)

  16. В преддверии темных ночей

    Index Scriptorium Estoniae

    2011-01-01

    Eesti Kunstiakadeemia tekstiilidisaini üliõpilaste töödest "Moonwalk" (autorid Stella Kalkun ja Luisa Aid), "RE:ME - remind me pillow" (autorid Heleri Alexandra Sits ja Signe Aasoja) ja "Volt" (autor Stella Kalkun)

  17. Sarah Mombin, Michèle Rossellini (dir.), Usages des vies. Le biographique hier et aujourd’hui (xviie-

    OpenAIRE

    Crépel, Pierre

    2014-01-01

    Histoire et biographie ont partie liée de mille façons. De Plutarque à Paris-Match, en passant par La Vie de Beethoven de Romain Rolland et le monumental Dictionary of Scientific Biography, dirigé par C.C. Gillispie (1970-1980), on voit bien que la biographie ne se limite pas à un seul « genre ». Les hommes politiques en vue, les historiens, les romanciers, les psychanalystes, les académiciens, les journalistes, les érudits locaux, les « savants sur le retour », ont tous leurs façons d’écrire...

  18. The Transfer of Land Contractual Management Rights in Ethnic Village--A Case Study of Ya’ergou Village in the Ningxia Hui Autonomous Region

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    Based on field survey in Ya’ergou Village,Yuanzhou District,Guyuan City,the Ningxia Hui Autonomous Region,we analyze the status quo of the transfer of land contractual management rights in this village,and study the basic information,form,characteristics,and problems concerning the transfer of land contractual management rights in this nationality village.Then corresponding countermeasures are put forward for promoting the transfer of land contractual management rights in ethnic village as follows:strengthening the publicity of the policy in order to improve farmers’ ideological understanding;raising the rent in order to promote the transfer of the land contractual management rights;diverting the governmental investment to the talented people within village;consolidating management and resolving disputes in the transfer timely and effectively.

  19. L’expérience de la carrière scientifique aujourd’hui. Zoom sur le vécu de chercheurs postdoctorants

    OpenAIRE

    Fusulier, Bernard

    2016-01-01

    Cet article vise à alimenter le débat sur la régulation de la science et des carrières scientifiques aujourd’hui. Bien que fondé sur une analyse de l’organisation de la recherche en Belgique, il révèle certains aspects généralisables en particulier au système français. Il repose empiriquement sur une enquête ayant ciblé les chargés de recherches (postdoctorants) du Fonds national de la recherche scientifique (FNRS) initiée en 2010 à l’Université catholique de Louvain. Dans un premier temps, e...

  20. 从“区域”到“整体”:回族史研究的历史人类学思考%From Region to Entirety:a Historical Anthropology Study on Hui Muslims’ History

    Institute of Scientific and Technical Information of China (English)

    沙彦奋

    2016-01-01

    目前,回族历史研究主要存在三种取向:一是受传统史学研究的影响,研究材料主要依赖于文献资料,缺乏对民间资料的重视;二是受回族分布格局的影响,区域性特点鲜明;三是受学科的影响,研究方法比较单一。文化的地域性和区域历史的特殊性,是回族历史研究不能忽视的两个方面。突出区域文化在回族历史研究方面有重要的作用。在加强回族区域历史“文本”书写的同时,注重回族史研究的整体建构,是回族历史研究应有之义。%At present, the historical study of the Hui Muslims mainly exists three kinds of orientation , the first was affected by the tradi-tional historical research , which was the materials research mainly depended on the literature ,and lack of attention to the private information;the second was affected by the distribution pattern of Hui Muslims with distinctive regional characteristics;the third was affected by subject, research method is relatively homogeneous .Regional culture and the specialty of regional history are two aspects not be ignored .Highlighting the regional culture plays an important role in the study of Hui Muslims ’ history.While strengthening the “text” writing of the Hui Mus-lims’ regional history, overall construction of the research on Hui Muslims’ history is the significance of the research.

  1. Le fonctionnement en réseau comme élément du contexte d’intervention en santé mentale aujourd’hui

    Directory of Open Access Journals (Sweden)

    Isabelle Deliège

    2006-12-01

    Full Text Available Le contexte dans lequel sont aujourd’hui amenés à intervenir les professionnels de la santé mentale est de plus en plus marqué par les pratiques de collaboration qui se développent au-delà des frontières d’une institution, qu’on appelle aussi le "travail en réseau". Le modèle du réseau s’est construit en opposition à celui de l’institution; ces deux modèles de fonctionnement se différencient tant dans le rapport qu’ils entretiennent au savoir, qu’à la norme et au contrôle. Cet article resitue l’émergence du concept de réseau dans les politiques publiques belges. Le fonctionnement en réseau dans la pratique soulève aussi une série de difficultés et de questions comme la cohabitation des logiques institutionnelles et réticulaires, la répartition de la responsabilité et les modalités de prise de décision, l’intérêt de la formalisation (ou non des procédures, la responsabilisation de l’usager des services de santé mentale et l’articulation des savoirs autant de questions que pose aujourd’hui le contexte d’intervention en santé mentale.

  2. Electric dipolarizability of 7Li

    Indian Academy of Sciences (India)

    Sudhir R Jain; Arun K Jain; S Kailas

    2008-12-01

    We calculate the electric dipolarizability of 7Li nucleus within the cluster model and estimate a value of about 0.0188 fm3. We also discuss the possibility of observing this in the scattering of 7Li from a 208Pb target at energies about 30 MeV.

  3. Electronic Properties of LiFePO4 and Li doped LiFePO4

    Energy Technology Data Exchange (ETDEWEB)

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

    2006-05-31

    LiFePO{sub 4} has several potential advantages in comparison to the transition metal oxide cathode materials used in commercial lithium-ion batteries. However, its low intrinsic electronic conductivity ({approx} 10{sup -9} S/cm) is problematic. We report here a study by soft x-ray absorption/emission spectroscopy of the electronic properties of undoped LiFePO{sub 4} and Li-doped LiFePO{sub 4} in which Li{sup +} ions are substituted for Fe{sup 2+} ions in an attempt to increase the intrinsic electronic conductivity. The conductivities of the Li{sub 1+x}Fe{sub 1-x}PO{sub 4} samples were, however, essentially unchanged from that of the undoped LiFePO{sub 4}. Nonetheless, evidence for changing the electronic properties of LiFePO{sub 4} by doping with excess Li+ was observed by the XAS/XES spectroscopy. New pre-edge features the O-1s XAS spectrum of Li{sub 1.05}Fe{sub 0.95}PO4 is a direct indication that the charge compensation for substitution of Fe{sup 2+} by Li{sup +} resides in the unoccupied O-2p orbitals. A charge transfer (CT) excitation was also observed in the doped material implying that the unoccupied O-2p orbitals created by doping are strongly hybridized with unoccupied Fe-3d orbitals of neighboring sites. However, the strong covalent bonding within the (PO{sub 4}){sup 3-} anions and the large separation of the Fe cations means that the charge created by doping is not delocalized in the manner of electrons or holes in a semiconductor.

  4. 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.

  5. 回族人群饮食习惯与胃癌发生的相关性研究%Study on correlation of dietary habits and risk of gastric cancer in Hui population

    Institute of Scientific and Technical Information of China (English)

    杨晓辉; 葛箭; 蔡慧珍; 葛云叶

    2012-01-01

    目的 研究回族人群独特的饮食习惯与胃癌患病的相关性,并进一步探讨与回族人群胃癌发病相关的饮食危险因素.方法 采用1∶1配对的病例对照研究方法,问卷调查126例胃癌和贲门癌回族患者以及126例非病例回族人群的饮食习惯,采用单因素和多因素条件Logistic回归模型进行数据分析.结果 经单因素与多因素条件Logistic回归分析结果显示,三餐不定时、常食腌制食品、常食油炸食品均有统计学意义(P<0.05,OR值分别为3.054,2.363,1.915).常食水果可降低胃癌的发生(OR=0.281,P<0.01).结论 三餐不定时、常食腌制食品及常食油炸食品可能会增加回族人群胃癌患病的危险性,而多食水果是回族胃癌的保护因素.%OBJECTIVE To study correlation of the special dietary habits and the risk of gastric cancer in Hui population, and to explore the risk factors of diet associated with gastric cancer in Hui population. METHODS 1:1 matched case-control study was conducted in 126 Hui people with gastric cancer, cardiac carcinoma and normal Hui people. Questionnaire including diet factors was used in the subjects. The data were analyzed by mono-factorial and multi-factorial conditional Logistic regression. RESULTS It revealed in mono-factorial and multi-factorial conditional Logistic regression analysis that there was a significant correlation between taking meals at irregular time, taking pickled foods frequently, taking fried foods frequently and gastric cancer in Hui people with odds ratios of 3.054, 2.363, and 1.915 respectively (P < 0.05). The results also showed that taking fresh fruit frequently was likely to decrease the risk of gastric cancer in Hui people (OR =0.281, P < 0.01). CONCLUSION The study shows that the dietary habits are associated with gastric cancer in Hui population as taking meals at irregular time, taking pickled foods frequently, taking fried foods frequently are the possible risk factors for

  6. 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.

  7. The Status and Role of Hui people in Economic Development of Ningxia in Qing Dynasty%回族在清代宁夏经济发展中的地位和作用

    Institute of Scientific and Technical Information of China (English)

    刘锦增

    2016-01-01

    Hui people is an important component of the population of Ningxia in Qing Dynasty.In the early pe-riod of Qing Dynasty, Hui people mainly inhabited in areas like Xiji, Haiyuan, Guyuan, Tongxin, Jinji, Lingzhou, Wuzhong and Pingluo, where agriculture was relatively developed and traffic was relatively convenient, and the pop-ulation of Hui people living in the North was much more than that in the South.In the late Qing Dynasty, Guyuan, Yanchi and Tongxin became their main inhabiting areas.Hui people in Ningxia play an important role in the devel-opment of agriculture, handicraft industry and business in Qing Dynasty.In the long-term economic activities in Qing Dynasty, an economic structure of Hui people in Ningxia was formed in which they were mainly engaged in ag-riculture and concurrently engaged in animal husbandry and handicraft industry.It is very significant for our man-agement of ethnic relations and acceleration of economic development of Ningxia to understand and acknowledge the role Hui people ever played in the economic development of Ningxia in ancient times.%回族是清代宁夏人口的重要组成部分。清代前期,宁夏的回族主要集中在西吉、海原、固原、同心、金积、灵州、吴忠、平罗等农业相对发达、交通较为便利的地区,且北部多于南部。清代后期,固原、同心等地成为回族的聚居区。回族在清代宁夏农牧业、手工业和商业的发展中起了很大作用。清代宁夏的回族在长期的经济活动中,形成了以农业为主,兼营畜牧业、手工业和商业的经济结构。正确认识和了解回族在古代宁夏经济开发中的作用,对于当前正确处理民族关系、加快宁夏经济发展具有重要的意义。

  8. Core TuLiP

    OpenAIRE

    Czenko, M.R.; Etalle, Sandro

    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 present a lookup and inference algorithm which we prove to be correct and complete w.r.t. the declarative semantics. CoreTuLiP enjoys uniform syntax and the well-established semantics and is express...

  9. Polymorphism of LiAg

    Science.gov (United States)

    Pavlyuk, V. V.; Dmytriv, G. S.; Tarasiuk, I. I.; Chumak, I. V.; Pauly, H.; Ehrenberg, H.

    2010-02-01

    A phase transition from the cubic CsCl-type structure (Pm-3m space group) into a tetragonal UPb-type structure (I4 1/amd) is observed for the LiAg binary compound at ambient conditions. The crystal structure of the tetragonal modification of the LiAg binary compound was solved by direct methods in SHELXS on the base of structure factors which were extracted from a powder diffraction pattern and refined by SHELXL and the Rietveld method ( a = 3.9605(1), c = 8.2825(2) Å, Bragg R-factor = 4.81, Rf-factor = 4.87). Elevated temperatures and/or a small Li-excess versus the equimolar composition favour the cubic structure whereas ambient and lower temperatures and/or a small Li-deficiency stabilize the tetragonal structure. This reconstructive transition is reversible but proceeds slowly.

  10. The Rise of Gong Li

    Institute of Scientific and Technical Information of China (English)

    1994-01-01

    THE advance of Chinese history and the development of the film industry have brought out a new generation of movie stars. Among them Gong Li is the most charming and most well known in the world. Gong Li was born in 1963, the youngest of five children in a family of intellectuals. Both her parents teach at a university. She liked to sing and dance since childhood and early on displayed

  11. LiFi

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    利用闪烁的灯光来传输数字信息.这个过程被称为可见光通讯(VLC),人们常把它亲切地称为“LiFi”,以示它可能给目前以WiFi为代表的无线网络传输技术带来革命性的改变。最近,复旦大学计算机科学技术学院传出消息,一种利用屋内可见光传输网络信号的国际前沿通讯技术在实验室获得验证。研究人员将网络信号接入一盏1W的LED灯珠,灯光下的四台电脑即可上网,最高速率可达3.25G,平均上网速率达到150M。

  12. Structure and properties of Li-rich Zn-doped LiNbO3 Crystal

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The Li-rich Zn-doped LiNbO3 (LN) crystals were grown by the Czochralski method. The structure of the crystals was measured by ultraviolet-visible absorption spectra. The results indicated that the Li-rich Zn-doped LN crystals had the same characteristics as the pure LN crystal. After Zn2+ entered into the lattice of Li-rich Zn-doped LN crystal, it replaced NbLi firstly. When there was no NbLi, Zn2+ replaced Li+ then. The second harmonic generation (SHG) property of Li-rich Zn-doped LiNbO3 crystal was measured. The results showed that the SHG conversation efficiency of Li-rich Zn-doped LiNbO3 crystals was higher than that of Zn-doped LiNbO3 crystals.

  13. Exploring the effect of hui-merchant’s clan sense and family business in Anhui%徽商宗族观对当代安徽家族企业发展的作用

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    As the support of clan, ancient hui-merchants were al-powerful more then 300 years. Nowadays, there are many family business improve rapidly in the land of Anhui with the support of family. This thesis explores the interaction between the hui-merchants and lineage from the clan sense, at the same time, sums up the inheritance and development of hui-merchants on the clan sense. Exploring the advantage of the hui-merchants’ clan sense. The purpose is to find out how the clan sense support the Anhui family business entrepreneurial management, and take great use of its benefits. So we can improve the succes ful rate of the family business entrepreneurship, and promote the development of the enterprises in Anhui.%  由于宗族力量等原因的支持,古徽商携亲带友在商场叱咤风云三百余年。今天,在徽商曾经居住过的土地上,由于家族力量的支持,新徽商的家族企业正在快速发展。本文从宗族观角度出发,探究徽商与宗族之间的相互作用,研究家族企业的特点和发展过程,同时,总结新徽商对徽商宗族观的继承和发展,目的是为了发现宗族观对安徽家族企业的影响,积极利用其有利方面,从而提高家族企业创业的成功率,促进安徽家族企业的发展。

  14. Bibliometrics Analysis on the Periodical Literature in the Journal of Hui Muslim Minority Studies in China%我国回族研究引用期刊文献计量分析

    Institute of Scientific and Technical Information of China (English)

    刘玉霞

    2012-01-01

    Taking the 2001-2010 statistical data of refers to the periodical literature of Journal of Hui Muslim Minority Studies which is the unique academic journal to study the historical culture of Hui nationality and the problem of the Hui nationality during the Socialist period as the base, the paper makes the statistics and analysis on the reference frequency, the kinds of reference periodicals, subject publications of the referred papers and papers publishment, and so on, from the perspective of bibliometrics.%以我国唯一的全方位研究回族历史文化及社会主义时期回族问题的学术性期刊——《回族研究》2001-2010年引用期刊文献的统计数据为蓝本,从引用频次、引用期刊种类、引用论文的学科发布及著者发布等方面,从文献计量学视角,进行了统计与分析.

  15. 论回族口承非物质文化的传承与保护%Research on the Inheritance and Protection of the Oral Culture of the Hui Minority

    Institute of Scientific and Technical Information of China (English)

    马晓琴

    2012-01-01

    The oral cultural heritage of the Hui is rich in content and vast in scope. Related government de- partments and scholars have made positive efforts and attained a certain level of success in rescuing and protecting intangible aspects of Hui culture. However, with the shock of globalization and modernization, the oral culture of the Hui is confronted with marginalization and eradication. For this reason, there is an urgent need for the inherit- ance and protection of its cultural heritage.%回族口承非物质文化遗产内容丰富,种类众多。相关政府部门和学者积极有为,在抢救和保护回族非物质文化方面作出积极努力并取得一定成效。但在全球化和现代化的冲击下,回族口承文化仍然面临边缘化和被消解的窘境。因此,对其保护和传承工作亟须跟进。

  16. 临夏回族舞蹈的动律特征及形成因素%Movement Patterns and Formative factors of Hui Dance in Linxia Area,Gansu Province

    Institute of Scientific and Technical Information of China (English)

    马路明; 李琦

    2011-01-01

    "动律"是一个民族舞蹈风格的重要体现,对动律特征及形成因素的深入分析,能帮助我们理解该民族舞蹈中的多元文化现象。笔者以甘肃临夏地区的回族舞蹈为切入点,试析在特定的自然环境、生活习俗和民族心理等因素中回族舞蹈的动律特征及形成因素,以进一步推进回族舞蹈的继承与发展。%Movement pattern is an important manifestation of ethnic dance styles. By analyzing features of movement patterns and their formative factors,multi-cultures can be revealed in the ethnic dance. The author of the paper examines Hui dance in Linxia area of Gansu Province,analyzing how specific environment,living habit and customs as well as ethnic psychology has influenced the movement patterns and formation of the dance of Hui people. The purpose of the study is to offer suggestions to the inheritance and development of Hui dance.

  17. Hui Musl ims’ National Identity and Cultural Consciousnesses duringAnti-Japanese War%抗日战争时期回族的国家意识与文化自觉

    Institute of Scientific and Technical Information of China (English)

    王晓霞

    2015-01-01

    国家意识提升与民族文化自觉是近现代以来回族发展的新气象,在抗日战争时期,回族更是以奋勇抗战、爱国爱教的实际行动体现出回族在近代民族国家条件下对民族与国家利益相一致关系的深刻认识。回族的民族文化自觉也将回族引向现代民族发展之路。%Chinese Hui Muslims had promoted national identity and ethnic cultural consciousness since modern China , which as a new phenomenon, had been embodied during the anti-Japanese war that Hui Muslims implemented their ideology of Love Nation and Love Islam into effect.Hui Muslims’ ethnic cultural consciousness helped themselves find a route to modern development .

  18. Analysis of the Source of the Famous Brand of the Hui Muslims’ Restaurant%回族餐饮老字号品牌资产来源分析

    Institute of Scientific and Technical Information of China (English)

    景娥

    2015-01-01

    Hui Muslims’ famous brands are the precious heritage after many years of operation, which is influenced by the epitome of the Hui culture. Brand awareness, brand loyalty, brand association are three elements which have significant positive impact on Hui Mus-lims’ famous brands. In this article, we suggest that the famous brands consistently help update the brand connotation, constantly enhance the brand awareness, foster customer brand loyalty, and establish a convenient service business philosophy.%回族餐饮老字号是回族文化的宝贵资产。品牌认知、品牌忠诚度、品牌联想三个要素对回族餐饮老字号品牌资产有显著正向影响,建议回族老字号更新回族餐饮老字号品牌内涵,不断提升品牌知名度,培育顾客品牌忠诚度,树立便捷服务经营理念。

  19. Zoning by Functions of Small-Scale Forest Ecosystems:A Case Study of Hui-Sun Forest Station in Taiwan Province,China

    Institute of Scientific and Technical Information of China (English)

    Chang Hsiaofei; Wang Yanglin; Li Zhengguo; Hsueh Ichen

    2006-01-01

    To optimize the spatial structure of an ecosystem,a forest landscape was selected as a research object.Based on the theory of structure and functions of landscape ecology,combined with the analysis of the characteristics of the inner structure in an ecosystem,this paper proposes to establish certain procedures to regulate the spatial structure of this forest landscape and construct a landscape pattern of forest ecosystem functions.Considering the functions of biologic production,environmental services,and cultural support in forest ecosystems,forest landscape zones should consist of areas of forest production,research,experimentation,recreation,and conservation to add value to the forest ecosystem,enhance its functions,and then identify the relevant environmental factors according to the environment featured in the research area.Based on the methods of landscape ecology and ecological planning,this paper develops a zoning project of ecosystem functions suitable for various environments.For this research,the Hui-Sun forest station in Taiwan Province,China was selected to be the experimental area for studying the feasibility of developing a zoning project of forest ecosystem services and the suitability of optimizing the spatial structures of the services.

  20. 桂林草坪回族乡特色休闲旅游发展%Characteristic Leisure Tourism Development of Caoping Hui Township of Guilin

    Institute of Scientific and Technical Information of China (English)

    曾丽萍

    2015-01-01

    Some factors such as the backward tourism infrastructure, the serious loss of the culture tourist resources, t he single tourism project and the lack of innovation and tourism talents restrict tourism development of Caoping Hui Township of Guilin. By analyzing the resources superiority and developing status, the study put forward some development countermeasures, such as improving the infrastructure construction and tourism security system, strengthening the construction of cultural connotation and tourism information, and innovating the methods of leisure tourism.%旅游基础设施较为落后, 文化旅游资源流失严重, 旅游项目单一, 缺乏创新以及旅游开发人才匮乏等因素制约着桂林草坪回族乡的旅游发展. 通过探讨草坪回族乡的资源优势和发展现状, 提出完善基础设施建设、 创新休闲旅游方式、 加强文化内涵建设、 健全旅游保障制度、 加强旅游信息化建设等发展对策.

  1. Impact of anthropogenic and natural environmental changes on Echinococcus transmission in Ningxia Hui Autonomous Region, the People’s Republic of China

    Directory of Open Access Journals (Sweden)

    Yang Yu

    2012-07-01

    Full Text Available Abstract Echinococcus transmission is known to be affected by various environmental factors, which may be modified by human influence or natural events including global warming. Considerable population growth in the last fifty years in Ningxia Hui Autonomous Region (NHAR, the People’s Republic of China (PRC, has led to dramatic increases in deforestation and modified agricultural practices. In turn, this has resulted in many changes in the habitats for the definitive and intermediate hosts of both Echinococcus granulosus and E. multilocularis, which have increased the risks for transmission of both parasites, affecting echinococcosis prevalence and human disease. Ecological environmental changes due to anthropogenic activities and natural events drive Echinococcus transmission and NHAR provides a notable example illustrating how human activity can impact on a parasitic infection of major public health significance. It is very important to continually monitor these environmental (including climatic factors that drive the distribution of Echinococcus spp. and their impact on transmission to humans because such information is necessary to formulate reliable future public health policy for echinococcosis control programs and to prevent disease spread.

  2. 民国时期回族报刊关于回族婚俗问题的讨论%The Discussion of the HuiM uslims’ Traditions of Marriage on Their Newspapers during the Republic of China

    Institute of Scientific and Technical Information of China (English)

    刘莉

    2013-01-01

    在民国时期新兴的回族报刊中,回族婚姻问题是当时回族知识阶层热烈讨论的焦点问题之一。回族知识分子就回族社会中存在的早婚、奢侈婚姻和不遵从伊斯兰教义的诸多婚姻陋俗展开批判,并有针对性地提出了许多卓有成效的改革措施,即适龄结婚、简朴婚礼和向伊斯兰教义回归。这些讨论和重建措施实质上折射了民国时期回族婚姻中“变”与“不变”的特征:产生一定变化的是婚姻仪式与观念,不变的是共同的伊斯兰宗教信仰以及相关联的民族认同感,以维护族群边界。%Hui Muslims’Marriage, as one of the core problems, was hotly discussed by the intellectuals on Hui Mus-lims’newly edited newspapers during the Republic of China .The Hui Muslim intellectuals criticized the phenomena existed in the Hui Muslim society , such as early marriage , luxurious wedding and traditions of marriage not followed by the Islamic doctrines.Besides, they proposed some effective reformations with regard to the marriage age , simple wedding and retur-ning to the doctrine etc ., which reflected the characteristics of changing and invariability of Hui Muslims ’ marriage during the Republic of China .The changing of it are rituals and perceptions , and the invariabilities are belief and ethnic identities , of which to maintain the boundaries of ethnicity .

  3. Investigation of sleep patterns and sleep disorders in Uigur and Hui children in XinJiang%新疆维吾尔族和回族儿童睡眠状况调查

    Institute of Scientific and Technical Information of China (English)

    塔吉古丽·阿不扎热; 徐佩茄; 阿曼古丽·铁木尔; 张季红

    2011-01-01

    Objective To study the sleep quality and quantity and their influencing factors in Uigur and Hui children in Xinjiang Province. Methods From March to December of 2007, 912 Uigur and 1019 Hui school children (6 to 14 years) were randomly sampled from 6 cities of Xinjing Province. The questionnaire on children's sleep states and sleep environments was filled in by children's parents. Results The mean sleep time of Uigur and Hui children was 10. 1 ±1.4 hrs. The sleep time in Uigur children was significantly less than that in Hui children (9.7 ± 1.2 hrs vs 10.4 ±1.5 hfs; P <0.05 ). The mean incidence of sleep disorders was 23.56%. The Uigur children had a lower incidence of sleep disorders compared with the Hui children ( 18.42% vs 28.16%; P <0. 001 ). Ethnic group, sleep latency, use ora swing bed, family history of snore, watching TV before sleeping, hypertrophy of tonsils, eating before sleeping,feeding patterns and recurrent upper respiratory tract infection were the factors associated with the sleep quality and quantity. Conclusions The influencing factors of sleep quality and quantity are multifactorial in Uigur and Hui children in Xinjiang Province. Pediatrician, child health care doctors and parents should pay more attention to children's sleep. The incidence of sleep disorders is different between Uigur and Hui children, suggesting that more research for the prevention and treatment of sleep disorders should be performed in different ethic groups.%目的 了解新疆维吾尔族与回族儿童睡眠状况及其相关影响因素.方法 2007年3-12月采取随机整群抽样的方法,在新疆地区6个县市的小学随机抽取912名维吾尔族学龄儿童和1019名回族学龄儿童,年龄6~14岁,在严格质量控制下由调查者对家长进行儿童睡眠状况的问卷调查.结果 维吾尔族、回族儿童平均睡眠时间为10.1±1.4 h,其中维吾尔族为9.7±1.2 h,回族为10.4±1.5 h,两民族间差异有统计学意义(P<0

  4. Transport properties derived from ion-atom collisions: 6Li-6Li+ and 6Li-7Li+ Cases

    Science.gov (United States)

    Bouledroua, Moncef; Bouchelaghem, Fouzia; LPR Team

    2014-10-01

    This investigation treats quantum-mechanically the ion- atom collisions and computes the transport coefficients, such as the coefficients of mobility and diffusion. For the case of lithium, the calculations start by determining the gerade and ungerade potential curves through which ionic lithium approaches ground lithium. Then, by considering the isotopic effects and nuclear spins, the elastic and charge-transfer cross sections are calculated for the case of 6Li+and7Li+ colliding with 6Li. Finally, the temperature-dependent diffusion and mobility coefficients are analyzed, and the results are contrasted with those obtained from literature. The main results of this work have been recently published in. This work has been realized within the frames of the CNEPRU Project D01120110036 of the Algerian Ministry of Higher Education.

  5. Genetics Home Reference: Li-Fraumeni syndrome

    Science.gov (United States)

    ... Facebook Share on Twitter Your Guide to Understanding Genetic Conditions Search MENU Toggle navigation Home Page Search ... Conditions Genes Chromosomes & mtDNA Resources Help Me Understand Genetics Home Health Conditions Li-Fraumeni syndrome Li-Fraumeni ...

  6. 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...

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

    Science.gov (United States)

    2016-12-22

    powders. The XRD spectra were collected in a range of 2θ values from 10 o to 70 o at a scanning rate of 0.5 degrees per min and a step size of 0.02 o...AFRL-AFOSR-JP-TR-2017-0003 Development of Advanced Li Rich xLi2MO3-(1-x)LiMO2 Composite Cathode for High Capacity Li Ion Batteries Kuan-Zong Fung...Li Rich xLi2MO3-(1-x)LiMO2 Composite Cathode for High Capacity Li Ion Batteries 5a.  CONTRACT NUMBER 5b.  GRANT NUMBER FA2386-15-1-4115 5c.  PROGRAM

  8. Electrochemical Investigations of the Interface at Li/Li+ Ion Conducting Channel

    Science.gov (United States)

    2006-10-04

    acetone consisting of LiBF4 as the supporting electrolyte. Unlike the powdery deposits of LiPc obtained by using tetrabutyl ammonium perchlorate (TBAP...as the supporting electrolyte, the deposits are adherent to the substrates when LiBF4 is used as the supporting electrolyte. Chemical oxidation of...Li2Pc by TBAP is shown to be detrimental for the formation of powdery electrodeposits of LiPc, whereas LiBF4 does not oxidize Li2Pc and therefore

  9. 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.

  10. Calibration of Li-glass Detector Efficiency

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Li-glass detector will be used to measure the flux of neutron beam in Gamma-ray Total Absorption Facility(GTAF). We have calibrated the detection efficiency of Li-glass detector in 5SDH-2 accelerator. The beam of neutron was produced by the reaction 7Li

  11. Hospital and community surveys reveal the severe public health problem and socio-economic impact of human echinococcosis in Ningxia Hui Autonomous Region, China.

    Science.gov (United States)

    Yang, Y R; Williams, G M; Craig, P S; Sun, T; Yang, S K; Cheng, L; Vuitton, D A; Giraudoux, P; Li, X; Hu, S; Liu, X; Pan, X; McManus, D P

    2006-06-01

    A comprehensive study of human echinococcosis (caused by Echinococcus granulosus or E. multilocularis), including assessment of hospital records, community surveys and patient follow-up, was conducted in Ningxia Hui Autonomous Region (NHAR), China. In contrast to hospital records that showed 96% of echinococcosis cases were caused by cystic echinococcosis (CE), 56% of cases detected in active community surveys were caused by alveolar echinococcosis (AE). The AE and CE cases co-existed frequently in the same village, even occurring in the same patient. A serious public health problem caused by echinococcosis was evident in southern NHAR, typified by: a long diagnostic history for both AE and CE (7.5 years) compared with a shorter treatment history (4.7 years); a significant mortality rate (39%) caused by AE in one surveyed village, where patients had no previous access to treatment; family aggregation of CE and AE cases; a high proportion of both AE (62.5%) and CE (58%) in females; a high rate of recurrent surgery (30%) for CE demonstrated by surgical records; and frequent symptomatic recurrences (51%) because of discontinuous or sporadic access to chemotherapy for AE. The disease burden for both human AE and CE is thus very severe among these rural communities in NHAR, and this study provides the first attempt to determine the costs of morbidity and surgical intervention of human CE and AE cases both at the hospital and community level in this setting. This information may be useful for assessing the cost effectiveness of designing effective public health programs to control echinococcosis in this and other endemic areas in China and elsewhere.

  12. A Research of the Ethnic Intermarriage of Muslim (Hui) Tibetans in Shigatse%日喀则“藏回”族际通婚调查研究

    Institute of Scientific and Technical Information of China (English)

    罗布; 孙海芳

    2016-01-01

    with the deepening of inter-ethnic communication, the Muslim(Hui) Tibetans in Shigatse as a typical ex⁃ample of acculturation, is a group of people have been gradually“Tibetanized”in the process of inter-ethnic communication, but they consciously preserve and inherit their national identity at the aspect of religious belief and ethnic intermarriage. Compared with the strict marriage discipline of the Muslim people in inland prohibit⁃ing ethnic intermarriage, the Muslim Tibetans in Shigatse allow ethnic intermarriage, but the Tibetans or any oth⁃er ethnic people, who marry with the Muslim Tibetans, have to convert their religious beliefs to Islam first.%伴随着族际交流的日益深入,日喀则“藏回”作为文化涵化的典型例证,是族际深度交往过程中,逐步“藏化”的群体,但是在宗教信仰与族际通婚方面,刻意保留并维持着原有的民族特征。较之内地回族严格族内婚姻的戒律,日喀则“藏回”可以接受“藏入回”或者其他民族“入回”,可以婚娶他族的配偶,但是前提条件是对方必须信仰伊斯兰教,即改变原有宗教信仰。除却极端个例外,不存在“回入藏”的现象。

  13. Li Shuirong and his success

    Institute of Scientific and Technical Information of China (English)

    DENG Qiwei

    2009-01-01

    @@ Li Shuirong,the CEO of Rongsheng Holding Group,was famous for his business talent.He started his business with eight shuttle weaving machines and 200 thousands Yuan assets in 1 989.In that year,all the enterprises of China faced several problems,like credit squeeze,expenditure decline and dropping rate of production.

  14. Li Na Aces French Open

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Chinese tennis player becomes the first Asian to win a Grand Slam singles title Chinese tennis player Li Na beat defending champion Francesca Schiavone from Italy,6-4,7-6,on the clay court at Roland Garros,winning the 2011 French Open Tennis Tournament on June 4.She made history by becoming the first Chinese to win a grand slam singles title.

  15. The Hui Architectural Phenomenon Analysis based on the Traditional Wooden Space: A Case Study of Traditional Wooden Mosque of Ningxia Hui Nationality%基于传统木构空间的回族建筑现象解析——以宁夏回族传统木构清真寺为例

    Institute of Scientific and Technical Information of China (English)

    燕宁娜

    2013-01-01

    In China,the mosque as a typical representative of the Islamic Architecture,along with the process of the introduction and spread of Islam,experienced four periods of transplant,formed,high tide,stagnation and recession.Mosque in China has designed withthe basic rules of the World Islamic Architecture,at the same time,the formation of a unique shape and style are different from those of other religious buildings.Ningxia as the only largest Muslim population settlements,due to its unique geographical environment,sociocultural and religious history,traditional building skills and other reasons,makes the region Hui mosque have showed the significant differences with other regions.The paper selects Ningxia traditional wooden mosque building as an object of study,analyzes the monomer building space from the overall layout,timber frame and technology.It reveals a tradifional wooden frame of the Ningxia Hui mosques architectural features,provides evidence for protection and inheritance Hui wooden architecture,space design practices and reference in the Ningxia region.%在中国,伊斯兰教建筑的典型代表——清真寺,随着伊斯兰教的传入,在传播的过程中,经历了移植、形成、高潮、停滞衰退等四个时期.中国清真寺建筑在遵循了世界伊斯兰教建筑的基本规则的同时,形成了有别于其他宗教建筑的独有形制和风格.宁夏作为全国唯一的、最大的回族人口聚居地,由于其独特的地理环境、社会文化、宗教历史、传统建筑技艺等原因,使得该地区的回族清真寺表现出与其他地区显著的差异.该文选取宁夏境内传统木构清真寺建筑作为研究对象,从总体布局、单体建筑空间、木构架技术等方面对其进行深入解析,揭示了宁夏回族传统木构架清真寺建筑特征,为宁夏地区保护与传承回族木构建筑技术、空间设计手法等提供实证与参考.

  16. 自我叙事式解读回族宗教活动空间的意义%The Self-narrative Style Interpretation of Hui's Religious Activity Space

    Institute of Scientific and Technical Information of China (English)

    白凯

    2012-01-01

    Based on emic perspective, this paper makes a subjective intentionality interpretation of the existential meaning of Hui's religious activity space by the self-narrative style method. After a complete autobiography and immersed thinking, the author holds the idea that there are some characteristics existing in Hui's religious activity space shown as follows: Firstly, homes, mosques and graveyards constitute the core of Hui's religious activity space. Secondly, for Muslim believers, homes, mosques and graveyards are not single physical space, but religious "places" which have unique significances. Thirdly, the author's memories and summaries of the religious functions and meanings of homes, mosques and graveyards illustrate that Hui's religious activity space are characterized by transformation from place to placelessness. The non-place conversion's place point is the mosque. Fourthly, "jie du wa"~a religious ceremony and religious behavior-builds bridges from space to place, from place to placelessness for Hui religious activity space. The analysis and conclusions explicate that Hui's religious activity space has the trait of transition from material religion spatial structure of place to spirit religious space structure of placelessness.%基于主位研究视角,以作者自我叙事的方式,对回族宗教活动空间的存在主义意涵进行了主体意向性解读,完整自叙和沉浸思考后作者认为,回族宗教活动空间存在以下特征:①回族宗教活动空间的核心构成为家、清真寺和坟园;②家、清真寺和坟园对回族宗教信仰者而言,不是单一的物理空间,而是具有特殊意义的宗教“地方”;③说明了回族宗教活动空间具有地方到无地方的转化特征,无地方转换的地方指向是清真寺;④“接都哇”这一宗教仪式和宗教行为构建了回族宗教活动空间从空间到地方,从地方到无地方转换的桥梁.该分析过程与结论说明了

  17. La mirada sartriana: poder y otredad en L’Être et le Néant, La Nausée y Huis clos (The Sartrean View: Power and Otherness in L’Être et le Néant, La Nausée and Huis clos

    Directory of Open Access Journals (Sweden)

    Andrew Lloyd Smith

    2015-11-01

    Full Text Available En L’Être et le Néant y La Nausée, Jean-Paul Sartre le otorga importancia a la mirada: aspecto esencial para explorar el tema existencial. Así, se analizan interrogantes y reflexiones como las siguientes: sin la mirada del otro, ¿cómo puedo saber verdaderamente que existo? Al verme y confirmar mi existencia, en ese mismo instante, la otra persona me convierte en un objeto, pues el observador es el sujeto de su mirada. Al mirar a los demás, soy también sujeto de mi mirada y convierto a los otros en objeto. El juego de la mirada es un juego de poder. La obra de teatro Huis clos también presenta el juego sartriano de poder y mirada, que será analizado en esta ponencia. Dans ses libres L’Être et le Néant et La Nausée Jean-Paul Sartre donne beaucoup d’importance au « regard ». Sartre nous dit que le regard est un aspect essentiel pour explorer le thème existentiel. Des questions et des réflexions comme les suivantes seront étudiées : sans le regard d’une autre personne, comment puis-je savoir si j’existe vraiment ? Quand une personne me regarde, elle confirme mon existence, mais en même temps elle me convertit en un objet puisque la personne qui me regarde est le sujet de son regard. Moi, quand je regarde l’autre personne je suis aussi le sujet de mon regard et je convertis l’autre personne en un objet. Ce jeu du regard est un jeu du pouvoir. La pièce de théâtre de Sartre Huis clos aussi présente ce jeu sartrien du pouvoir et du regard et sera analysée dans cette communication.

  18. Symbols of Maturity and the Leaving of a Legacy: A Preliminary Study of the Formation of Genealogies and Families among the Hui Muslim Minority People%成熟的象征与存在的延续——回族家谱与回族家族形成初探

    Institute of Scientific and Technical Information of China (English)

    张訸

    2011-01-01

    本文就目前所发现的回族家谱进行研究,重点考察回族家谱的特点及回族家谱的修撰与回族家族组织的建立之间的关系;分析回族家谱与其他少数民族家谱的异同之处;阐释回族家谱的文化意义与社会价值。%This paper is devoted to the research of what is currently known regarding the genealogy of the Hui . Its focus is upon the study of distinctive characteristics of the Hui genealogy along with the relationship between genealogy composition and the establishment of Hui family clans. Also, it considers the similarities and differences between Hui genealogies and those of other ethnic minorities. Lastly, the paper expounds on the cultural significance and societal value of Hui genealogies.

  19. Hui Muslims Overseas Literature in Southeast Asia: A New Branch of Chinese Overseas Literature%海外华人文学的新支:东南亚回族华人文学

    Institute of Scientific and Technical Information of China (English)

    杨建军

    2016-01-01

    Hui Muslims Overseas Literature in Southeast Asia is literature branch active in Singapore and Malaysia , which has not yet attracted researchers attention .From 1950s to date, it could be divided into three stages .The formation of the Hui Muslims Overseas Literature in Southeast Asia is related to the Chinese Hui Muslims ' migration and the develop-ment of the Chinese literature .Studying on it will be helpful for comprehending the relations between Chinese Overseas lit -erature and Islamic culture , which mainly covered the themes crossing with Zhenghe , female and authors ' creativeness .%东南亚回族华人文学是海外华人文学中尚未引起研究者重视的一支. 东南亚回族华人文学活跃于新加坡和马来西亚,从20世纪50年代至今,大致可分为三个发展阶段,出现了戴小华等一批作家. 东南亚回族华人文学的形成与回族华人的移民活动和东南亚华人文学的发展有关,对其进行研究,有助于学界思考东南亚华人文学与伊斯兰文化的关系. 东南亚回族华人文学的特色在于郑和题材创作、女性题材创作,以及作家创作的跨越性.

  20. Professor OUYANG Hui-qing's explorations and practice on teaching of traditional Chinese medicine%欧阳惠卿中医教学观念的探索与实践

    Institute of Scientific and Technical Information of China (English)

    廖雅琪; 罗颂平; 黄洁明; 许丽绵; 赵颖

    2013-01-01

    欧阳惠卿通过长期的教学实践,逐步形成自己的中医教学观:教育培养中医人才是教研室第一要务,课堂教学与临床带教相结合以促进医学生成长,中医临床教学不可或缺,教学中应贯穿中医文化与学术传承.她的人才观为:教师人才是团队发展的关键,是教研室建设的核心内容,是学科人才建设的基础.她的教学管理观为:教研室主任是教育培养人才的实践者,教学团队发展的担当者.%Professor OUYANG Hui-qing's gradually formed her own teaching concept of traditional Chinese medicine through long-term teaching practice:the most important teaching aim is to cultivate talents of traditional Chinese medicine.Clinical practice together with classroom teaching can promote the growing knowledge of medical students.Clinical practices are necessary and should penetrate culture and academic tradition of traditional Chinese medicine.OUYANG Hui-qing's concepts on talents are:cultivating teaching faculties is the key to the development of the teaching team,the core of construction of the teaching and research section,and the basis of construction of the discipline.OUYANG Hui-qing's management concepts are:the dean of the teaching and research section is the practitioner of personnel training practice and the undertaker of teaching team development.

  1. 试论满族和回族饮食文化对近代成都的影响%Discussion on the Effect of Manchu and Hui Nationality Diet Culture on Modern Chengdu

    Institute of Scientific and Technical Information of China (English)

    梁刚

    2012-01-01

    晚清民国的成都是现代川菜菜系的发源地与演变中心。成都的满族和回族人口也影响到了现代川菜菜系在成都的定型、发展和走向成熟的历史进程。满族、回族等少民族饮食文化推动了近代成都饮食业的发展,从原料选取、烹饪技法、菜品制作、筵席内容等方面给现代川菜菜系以影响。生活在成都的满族、回族等少数民族的饮食习俗为成都市民的饮食生活增添了新的内容,带来了新的饮食品种,大大丰富了成都川菜中的面食、糕点、小吃的内容。%late Qing Dynasty is the origin and evolution Center of modern Sichuan cuisine in Chengdu.Manchu and the Hui nationality population in Chengdu have also affected the historical process of the shaping,development and maturity of modern Sichuan cuisine in Chengdu.Manchu,Hui national minority diet culture has promoted the development of the catering industry in Chengdu,influenced the raw materials selection,cooking techniques,food production,content and other aspects of modern Sichuan cuisine.The diet custom of Manchu,Hui minority Living in Chengdu has added new content to Chengdu people 's diet,brought new dietary variety,greatly enriched the content of the pasta,cakes,snack of Sichuan cuisine in Chengdu.

  2. 设计美学语境下徽派建筑设计的传承与创新研究%Research on Inheritance and Innovation of Hui-style Architecture in the Content of Design Aesthetics

    Institute of Scientific and Technical Information of China (English)

    左铁峰; 高巍

    2016-01-01

    基于设计美学的徽派建筑设计传承与创新研究,是将徽派建筑设计作为设计美学的一个对象予以面向,探讨与解决的是设计美学语境下徽派建筑如何传承与怎样创新的问题,需求的契合与提升、基因的提炼与重构和语境的拓展与延伸等是其工作应遵循的基本原则与实施策略。如同基于其他学科与视角的探究与论证一样,这样的“解决方案”必须要与其他的“措施办法”形成有机的“合力”,方能奏效。%The design aesthetics-based inheritance and innovation research of Hui-style architecture design , regarding Hui-style archi-tecture design as an object , discusses the problems of ways of inheritance and innovation of Hui -style architecture design , considering that the fit and promotion of needs , the refinement and reconstruction of gene and the development and extension of context are the bas -ic principles and implementing strategies .The same as exploration and demonstration based on other subjects and perspectives , this“solution” must combine a “resultant force” with other “measures”.

  3. 6Li/7Li estimates for metal-poor stars

    CERN Document Server

    Perez, A E Garcia; Inoue, S; Ryan, S G; Suzuki, T K; Chiba, M

    2009-01-01

    The presence of the lithium-6 isotope in some metal-poor stars is a matter of surprise because of the high values observed. Non-standard models of Big Bang nucleosynthesis and pre-Galactic cosmic ray fusion and spallation have been proposed to explain these values. However, the observations of this light isotope are challenging which may make some detections disputable. The goal was to determine 6Li/7Li for a sample of metal-poor stars; three of them have been previously studied and the remaining two are new for this type of study. The purpose was to increase, if possible, the number of lithium-6 detections and to confirm previously published results. Spectra of the resonance doublet line of neutral lithium Li I 670.78nm were taken with the High Dispersion Spectrograph at the Subaru 8.2m-telescope for a sample of five metal-poor stars (-3.12 < [Fe/H] < -2.19). The contribution of lithium-6 to the total observed line profile was estimated from the 1D-LTE analysis of the line asymmetry. Observed asymmetri...

  4. Neutron Transfer reactions induced by 8Li on 9Be

    CERN Document Server

    Guimarães, V; Amro, H; Assunção, M; Barioni, A; Becchetti, F D; Carmargo, O; Garcia, H; Jiang, H; Kolata, J J; Lichtenthäler, R; Lizcano, D; Martines-Quiroz, E; Jiang, Hao

    2007-01-01

    Angular distributions for the elastic scattering of 8Li on 9Be and the neutron transfer reactions 9Be(8Li,7Li)10Be and 9Be(8Li,9Li)8Be have been measured with a 27 MeV 8Li radioactive nuclear beam. Spectroscopic factors for 8Li|n=9Li and 7Li|n=8Li bound systems were obtained from the comparison between the experimental differential cross section and finite-range DWBA calculations with the code FRESCO. The spectroscopic factors obtained are compared to shell model calculations and to other experimental values from (d,p) reactions. Using the present values for the spectroscopic factor, cross sections for the direct neutron-capture reactions 7Li(n,g)8Li and 8Li(n,g)9Li were calculated in the framework of a potential model.

  5. 杨惠民教授治疗老年类风湿关节炎经验%Experience of Therapy Elderly Rheumatoid Arthritis by Professor YANG Hui-min

    Institute of Scientific and Technical Information of China (English)

    姜洋

    2012-01-01

    Introducing the therapy experience of elderly rheumatoid arthritis hy Professor YANG Hui-min, summarizing the pathogenic factors and pathogenesis of rheumatoid arthritis, dividing elderly rheumatoid into activity and stability of treatment.%介绍杨惠民教授治疗老年类风湿关节炎经验,总结老年类风湿关节炎的病因病机,将老年类风湿关节炎分活动期与稳定期进行治疗.

  6. [Comparative study of theoretical literature on cold pathogenic disease in Wai tai mi yao fang (Arcane Essentials from the Imperial Library) and Tai ping sheng hui fang (Taiping Holy Prescriptions for Universal Relief)].

    Science.gov (United States)

    Zhang, Huirui; Liang, Yongxuan

    2014-09-01

    In the Wai tai mi yao fang (Arcane Essentials from the Imperial Library) compiled in 752, its portion on cold pathogenic disorders embodies the achievements before the mid Tang Dynasty, whereas that in the Tai ping sheng hui fang (Taiping Holy Prescriptions for Universal Relief), compiled in 992 embodies those before the early Song Dynasty. Comparison on the theory of cold disorders in both books reveal that, during the 2 centuries period from mid Tang to early Song Dynasties, the texts as a carrier for the transmission of such theory in both show no distinct changes, but only with minor revisions and improvements.

  7. 论近代宁夏回族经堂教育的演变及特点%On Evolution and Characteristics of Ningxia Hui Mosque Education in Modern Times

    Institute of Scientific and Technical Information of China (English)

    文斐; 高石钢

    2014-01-01

    经堂教育产生于明清时期,是我国回族穆斯林接受教育的基本形式。近代以来,宁夏回族经堂教育由以往单一的宗教教育形式逐渐演变为回民小学、中阿学校、阿訇教义国文讲习所、伊斯兰教讲习所等多种形式,呈现出了种类繁多、办学方式多元,课程内容丰富、全面并与伊斯兰教积极互动的特点。近代社会思潮广泛传播的影响、回族的民族觉醒、崇尚求知的民族文化传统、上层人士的努力以及宁夏地方政府的推动作用等是造成近代宁夏回族经堂教育演变的社会、历史性原因。%The Muslim mosque education originated in the Ming and Qing Dynasties is a basic form of Hui Muslim education. In modern times,single traditional form of Ningxia Hui mosque religious education had changed into various forms,included Hui nationality elementary school,China-Arab school,imam doctrineˊs Chinese lecture assembly and Islam assembly,etc. Presented the characteristics of variety differently,running school forms multiply,course content rich and comprehensive and had a positive interaction with Islam. Modern social thoughts spread,national awakening of the ethnic Hui,national cultural traditionˊs advocating for knowledge,elite efforts and also Ningxia local governmentˊs pro-mote role was the social and history reasons.

  8. 宁夏农村回族妇女婚姻暴力处理方式探究%A Tentative Study on Hui Women’ s Ways to Deal with Marital Violence in Ningxia Rural Areas

    Institute of Scientific and Technical Information of China (English)

    王雪梅; 章志敏

    2016-01-01

    In recent years, marital violence has become a focus in academic field.However, researches on marital violence upon Hui women are not sufficient.Therefore, the paper is to make a tentative study on the ways that Hui women often take to deal with marital violence after they have suffered from it and some relative affecting factors based on a questionnaire survey, holding that Hui women in the rural areas of Ningxia are more inclined to tolerate marital violence and seek informal social support when seeking help, and the ways they take to deal with marital violence are influenced by their cognition of marital violence, their willingness to seek help and the factor whether mosques in their villages would take measures to solve the problem or not, etc.With these findings, the thesis is to provide some reference for preventing marital violence upon Hui women in the future.%近年来婚姻暴力问题一直被学界热议,但是关于农村回族妇女婚姻暴力问题的研究是比较缺乏的,通过对宁夏农村回族妇女的婚姻家庭进行问卷调查,对她们的婚姻暴力处理方式以及相关因素进行分析发现,宁夏农村回族妇女在遭受家庭暴力后较为倾向于去忍受婚姻暴力,在寻求帮助的过程中则较为倾向于去寻求非正式社会支持,而这种行为受到她们对婚姻暴力的认知、寻求帮助的意愿以及所在村里的清真寺是否会过问婚姻暴力问题等因素的影响。同时,这些发现能够为今后农村回族妇女婚姻暴力问题的防治提供一些参考。

  9. Li-Fi (Light - Fidelity)

    OpenAIRE

    Svensson, Martin

    2016-01-01

    Dagligen blir vi ombedda att stänga av elektroniska apparater som kan sända och mottaga radiosignaler, speciellt i flygplan och sjukhusmiljöer där radiovågor kan störa viktig utrustning. Detta kan snart vara ett minne blott. En ny trådlös överförings teknik, Li-Fi, baserar sig på ljusvågor som till skillnad från radiovågor (Wi-Fi) inte stör känsliga instrument. Även om Li-Fi ännu är i sin linda kan man ana att det finns stor utvecklingspotential. I denna rapport sammanställs befintlig litterä...

  10. CASTABILITY OF Al-Li-Mg AND Al-Li-Cu-Mg ALLOYS

    OpenAIRE

    1987-01-01

    The objective of the present work is to study the casting characteristics of various Al-Li alloys, which include fluidity and strengths of the alloys and their interaction with cast molds. Materials investigated are Al-Li-Mg and Al-Li-Cu-Mg alloys with Li content of 2.5 wt%. The results show that sand molds with resin binders are good for Al-Li casting. Ceramic coatings can further reduce the metal-mold interactions. However, the permeability is also reduced by coating. The fluidity of Li-bea...

  11. 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

  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. Le travail aujourd’hui. L’hypothèse de la reconnaissance Work today. The hypothesis of recognition El trabajo hoy: hipótesis del reconocimiento

    Directory of Open Access Journals (Sweden)

    Michel Wieviorka

    2013-03-01

    Full Text Available Jusque dans les années 1970, le travail était au cœur de la réflexion sociologique, et du débat public. Aujourd’hui, après les espoirs et les déconvenues des années 1980 et 1990, après la « révolution managériale », et ses dégâts, et qu’il s’agisse du sens qu’il revêt pour l’individu, pour l’entreprise ou pour la société toute entière, il implique d’être repensé à nouveaux frais. Ne sommes-nous pas entrés dans l’ère de la reconnaissance – un concept qui peut nous aider à redonner sens au travail ?Until the mid seventies, work was a key issue in sociological research, as well as in the public debate. During the eighties and the nineties, things changed, and it became difficult to define the meaning of work for individuals, for companies or for the whole society. Today, new approaches are possible, including those that are based on the concept of recognition.Hasta los años 1970, el trabajo estaba en el centro de la reflexión sociológica y del debate público. Hoy, después de las esperanzas y los desengaños de los años 1980 y 1990, tras la “revolución gerencial” y sus estragos, tratándose ya sea del sentido que tiene para el individuo, para la empresa o para la sociedad entera, habrá que volver a pensar el trabajo desde cero. ¿No hemos entrado acaso a la era del reconocimiento, concepto que puede ayudarnos a devolverle un sentido al trabajo?

  14. Energy efficiency of rural dwellings in Ningxia Hui Autonomous Region%宁夏地区乡村民居节能设计研究

    Institute of Scientific and Technical Information of China (English)

    张群; 梁锐; 刘加平

    2011-01-01

    为改善宁夏乡村地区居住建筑室内冬季热环境,达到建筑节能65%的目标,对典型传统民居进行了调研和围护结构能耗分析,发现了民居建筑耗能的主要薄弱部位.结合当地自然气候与经济条件,从建筑功能布置与空间组合、太阳能资源利用和围护结构构造等方面出发,提出整体式的建筑设计改进方案,并通过能耗分析计算新方案的热工性能与室内热环境质量,证明了在宁夏地区通过合理的设计农村住宅也可以达到提高室内热舒适和节能的目标.%In order to improve the thermal environment and reach the energy efficiency goal of rural house in Ningxia Hui Autonomous Region, the paper investigates a typical traditional vernacular, analyzes the index of heat loss of building envelop and discovers the main weak part in the building affecting on the energy consumption. Combining with the local conditions of climate and economy, this paper put forward the integrating designing project, including the function layout, room combination, solar energy utilization and construction of building envelop. A new project for improving the indoor thermal comfort and saving energy was given in this paper. The index of heating loss of two rural buildings are calculated in order to verify the effectiveness of the new project. At the same time, it is bproved that the improvement of the thermal environment and 65% energy efficiency goal can meet with by appropriate architectural designs.

  15. Research on the evaluation method of rural hollowing based on RS and GIS technology: a case study of the Ningxia Hui autonomous region in China

    Science.gov (United States)

    Yin, Kai; Wen, MeiPing; Zhang, FeiFei; Yuan, Chao; Chen, Qiang; Zhang, Xiupeng

    2016-10-01

    With the acceleration of urbanization in China, most rural areas formed a widespread phenomenon, i.e., destitute village, labor population loss, land abandonment and rural hollowing. And it formed a unique hollow village problem in China finally. The governance of hollow village was the objective need of the development of economic and social development in rural area for Chinese government, and the research on the evaluation method of rural hollowing was the premise and basis of the hollow village governance. In this paper, several evaluation methods were used to evaluate the rural hollowing based on the survey data, land use data, social and economic development data. And these evaluation indexes were the transition of homesteads, the development intensity of rural residential areas, the per capita housing construction area, the residential population proportion in rural area, and the average annual electricity consumption, which can reflect the rural hollowing degree from the land, population, and economy point of view, respectively. After that, spatial analysis method of GIS was used to analyze the evaluation result for each index. Based on spatial raster data generated by Kriging interpolation, we carried out re-classification of all the results. Using the fuzzy clustering method, the rural hollowing degree in Ningxia area was reclassified based on the two spatial scales of county and village. The results showed that the rural hollowing pattern in the Ningxia Hui Autonomous Region had a spatial distribution characteristics that the rural hollowing degree was obvious high in the middle of the study area but was low around the study area. On a county scale, the specific performances of the serious rural hollowing were the higher degree of extensive land use, and the lower level of rural economic development and population transfer concentration. On a village scale, the main performances of the rural hollowing were the rural population loss and idle land. The

  16. Samen kom je er wel. Een afstudeerartikel over het Skejby halfway house: een huis waar delinquenten en studenten onder één dak wonen

    Directory of Open Access Journals (Sweden)

    Eline Broker

    2016-03-01

    Full Text Available Together you will get there. A graduation article on the Skejby halfway house: a house where delinquents and students live togetherThe Skejby house is unique and produces remarkable results. The recidivism percentage among its’ delinquent inhabitants is over 20% lower than in the halfway houses where only prisoners reside. The aim of Skejby is to ease the transition between imprisonment and reentry in society. The experiment, in which students and prisoners live together, originates from the idea that behavioral transformation is realized most effectively within a socially engaged group. The principal of collective responsibility is dominant in Skejby, resulting in a feeling of belonging to a group among the delinquents. In this group, the students serve as prosocial role models. Consequently, the standards and values that are picked up in prison are reshaped into much needed skills that are required for living a “regular” life in society. In contrast to the reintegration program in Skejby, the Dutch reintegration program mainly consists of one-to-one consultations between the delinquent and the probation officer. The reintegration thus does not take place in a group to which the delinquent can relate, while it is precisely this unique communal feeling of belonging that induces behavioral change in the prisoners. SAMENVATTING Samen kom je er wel. Een afstudeerartikel over het Skejby halfway house: een huis waar delinquenten en studenten onder één dak wonenHet Skejby house is uniek in zijn soort en boekt opmerkelijke resultaten: het recidivepercentage ligt ruim 20% lager dan bij halfway huizen waar alleen delinquenten wonen. Skejby heeft als doel om de overgang tussen gevangenis en samenleving zo klein mogelijk te maken. Het experiment, waarbij studenten en delinquenten samen wonen, komt voort uit het idee dat gedragsverandering het best bewerkstelligt wordt binnen een sociaal verbonden groep. In Skejby heerst het principe van

  17. Preparation and characterization of poly(lithium acrylate-arcylonitrile)/LiClO4-LiNO3-LiBr solid polymer electrolytes

    Institute of Scientific and Technical Information of China (English)

    PAN Chun-yue; YUAN Yun-lan; CHEN Zhen-hua; XU Xian-hua; ZHANG Jian

    2005-01-01

    Through orthogonal experiment, a new type of LiClO4-LiNO3-LiBr eutectic salt with optimum mole ratio of n(LiClO4):n(LiNO3):n(LiBr)=1.6:3.8:1.0 was prepared. The poly(lithium acrylate-acrylonitrile)/LiClO4-LiNO3-LiBr solid polymer electrolytes were prepared with poly(lithium acrylate-acrylonitrile) and LiClO4-LiNO3-LiBr eutectic salts. The effect of LiClO4-LiNO3-LiBr eutectic salts content on the conductivity of solid polymer electrolytes was studied by alternating current impedance method, and the structures of eutectic salts and solid polymer electrolytes were characterized by differential thermal analysis, infrared spectroscopy and X-ray diffractometry. The results show that the room temperature conductivity of LiClO4-LiNO3-LiBr eutectic salts reaches 3.11×10-4 S·cm-1. The poly(lithium acrylate-acrylonitrile)/LiClO4-LiNO3-LiBr solid polymer electrolytes possess the highest room temperature conductivity at 70% LiClO4-LiNO3-LiBr eutectic salts content, and exhibit lower glass transition temperature of 75 ℃ compared with that of poly(lithium acrylate-acrylonitrile) of 105 ℃. A complex may be formed in the solid polymer electrolytes from the differential thermal analysis and infrared spectroscopy analysis. X-ray diffraction results show that the poly(lithium acrylate-acrylonitrile) can suppress the crystallization of eutectic salts in this system.

  18. A cross-sectional survey on behavior problems among eco-migrant children of Hui and Han in Ningxia, China%宁夏生态移民地区儿童行为问题现况调查

    Institute of Scientific and Technical Information of China (English)

    颜国利; 方建群; 张朝霞; 冯丽平; 吴锦荣; 马馥荔; 陈诗祺; 赵冉然; 王颖丽

    2014-01-01

    Objective To investigate the detection rate and correlates of behavioral problems among eco-migrant children in Hui and Han ethnicities.Methods Using multistage randomized sampling method,2 653 eco-migrant teenagers,3 174 indigenous and 2 334 homeland peers were selected.Their parents were asked to finish the Achenbach' s Child Behavior Checklist (CBCL) and a self-developed correlates questionnaire.Results 765 eco-migrant children with behavioral problems were detected,with detection rate as 28.8%,higher than that of homeland group (24.2%) and native group (19.3%)(x2=73.547,P<0.012 5).Ecological migration mainly influenced factors as bad contacts,depression,obsessive-compulsive,discipline,attack for boys aged 6-11,bad contacts for boys aged 12-16 and extraversion behavioral problems for girls aged 12-16,in Hui.These factors both associated to eco-migrant children's behavioral problems in Hui and Han:cesarean section (OR =1.863,95% CI:1.144-3.035,for Han) and (OR=2.979,95% CI:2.067-4.293,for Hui),physical defects(OR=1.730,95%CI:1.087-2.751,for Han) and (OR=2.552,95%CI:1.649-3.950,for Hui),arable as a main income way(OR=1.272,95%CI:1.066-1.518,for Han) and (OR=1.212,95%CI:1.033-1.422,for Hui),parents' education level above middle school (OR=0.709,95% CI:0.539-0.932,for Han) and (OR=0.698,95%CI:0.542-0.898,for Hui),parents' frequently in good mood (OR=0.710,95%CI:0.613-0.821,for Han) and (OR=0.826,95%CI:0.718-0.949,for Hui).However,major diseases in the process of growth (OR=1.794,95% CI:1.163-2.767),and parents with chronic illness or disability (OR=1.463,95% CI:1.061-2.016) only associated with that in Han; single-parent or remarried families (OR=1.583,95% CI:1.078-2.325),parents often drinking (OR=1.557,95%CI:1.019-2.379),the time of parents' work longer than half a year(OR=1.494,95% CI:1.197-1.864),parents' more content to life now (OR=0.813,95% CI:0.700-0.945),and children in older age (OR=0.939,95%CI:0.889-0.991) only

  19. Ultralong Lifespan and Ultrafast Li Storage: Single-Crystal LiFePO4 Nanomeshes.

    Science.gov (United States)

    Zhang, Yan; Zhang, Hui Juan; Feng, Yang Yang; Fang, Ling; Wang, Yu

    2016-01-27

    A novel LiFePO4 material, in the shape of a nanomesh, has been rationally designed and synthesized based on the low crystal-mismatch strategy. The LiFePO4 nanomesh possesses several advantages in morphology and crystal structure, including a mesoporous structure, its crystal orientation that is along the [010] direction, and a shortened Li-ion diffusion path. These properties are favorable for their application as cathode in Li-ion batteries, as these will accelerate the Li-ion diffusion rate, improve the Li-ion exchange between the LiFePO4 nanomesh and the electrolyte, and reduce the Li-ion capacitive behavior during Li intercalation. So the LiFePO4 nanomesh exhibits a high specific capacity, enhanced rate capability, and strengthened cyclability. The method developed here can also be extended to other similar systems, for instance, LiMnPO4 , LiCoPO4 , and LiNiPO4 , and may find more applications in the designed synthesis of functional materials.

  20. Inelastic H+Li and H^-+Li^+ collisions and non-LTE Li I line formation in stellar atmospheres

    CERN Document Server

    Barklem, P S; Asplund, M

    2003-01-01

    Rate coefficients for inelastic collisions between Li and H atoms covering all transitions between the asymptotic states Li(2s,2p,3s,3p,3d,4s,4p,4d,4f)+H(1s) and Li^+ +H^- are presented for the temperature range 2000-8000 K based on recent cross-section calculations. The data are of sufficient completeness for non-LTE modelling of the Li I 670.8 nm and 610.4 nm features in late-type stellar atmospheres. Non-LTE radiative transfer calculations in both 1D and 3D model atmospheres have been carried out for test cases of particular interest. Our detailed calculations show that the classical modified Drawin-formula for collisional excitation and de-excitation (Li*+H Li*'+H) over-estimates the cross-sections by typically several orders of magnitude and consequently that these reactions are negligible for the line formation process. However, the charge transfer reactions collisional ion-pair production and mutual neutralization (Li*+H Li^+ +H^-) are of importance in thermalizing Li. In particular, 3D non-LTE calcu...

  1. First observation of $^{13}$Li ground state

    CERN Document Server

    Kohley, Z; DeYoung, P A; Volya, A; Baumann, T; Bazin, D; Christian, G; Cooper, N L; Frank, N; Gade, A; Hall, C; Hinnefeld, J; Luther, B; Mosby, S; Peters, W A; Smith, J K; Snyder, J; Spyrou, A; Thoennessen, M

    2013-01-01

    The ground state of neutron-rich unbound $^{13}$Li was observed for the first time in a one-proton removal reaction from $^{14}$Be at a beam energy of 53.6 MeV/u. The $^{13}$Li ground state was reconstructed from $^{11}$Li and two neutrons giving a resonance energy of 120$^{+60}_{-80}$ keV. All events involving single and double neutron interactions in the Modular Neutron Array (MoNA) were analyzed, simulated, and fitted self-consistently. The three-body ($^{11}$Li+$n+n$) correlations within Jacobi coordinates showed strong dineutron characteristics. The decay energy spectrum of the intermediate $^{12}$Li system ($^{11}$Li+$n$) was described with an s-wave scattering length of greater than -4 fm, which is a smaller absolute value than reported in a previous measurement.

  2. Electrical conductivity of Cu-Li alloys

    Institute of Scientific and Technical Information of China (English)

    朱达川; 宋明昭; 陈家钊; 涂铭旌; 潘海滨

    2004-01-01

    The electrical conductivity of Cu-Li alloys was studied. And the distribution of electrons near Fermi surface was detected by synchrotron radiation instrument. The results show that the electrical conductivity of Cu-Li alloys decreases from 5. 22 × 10-9 S/m to 3. 69 × 10-9 S/m with the increase of Li content. Li can decrease the oxygen, sulfur and other impurities content in commercial Cu, but Li dissolved in Cu lattice leads to distortion of Cu lattice from 0. 005 %-0. 050 %, affects the valence band of Cu, increases the binding energy of surface electron, and decreases the electron density of Fermi surface simultaneously. So the electrical conductivity decreases gradually with the increase of Li content.

  3. 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...

  4. 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...

  5. 2011 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Quinault River Basin

    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 River Basin survey area for the Puget Sound LiDAR Consortium and...

  6. 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Entiat

    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 LiDARConsortium (PSLC) to collect Light Detection and Ranging (LiDAR) data for the...

  7. 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...

  8. 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)...

  9. 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)...

  10. 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...

  11. 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...

  12. 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...

  13. 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...

  14. Empirical Research of Brand Trust Relationship Influential Factors of Huis Old Brands%基于回族老字号的顾客品牌信任关系影响因素实证研究∗

    Institute of Scientific and Technical Information of China (English)

    杨保军

    2014-01-01

    The process from weak brands developing to strong brands serenely is the process of customer trust increases, exploring factors that influence brand trust is great significance to the brand growth. Re-search shows, enterprises, customers and interactive processes are key factors that affect brand trust rela-tionships;through questionnaires of Huis old brands validated the brand trust and influential factors, for exploring brand trust relationships and promoting Huis old brands growth provide important ideas.%从弱小品牌发展到强势品牌的过程实质是顾客信任程度增加的过程,探索影响品牌信任关系的因素对于品牌成长具有重要意义。研究证明,企业、顾客及交互过程是影响品牌信任关系的关键因素,通过回族老字号的调查问卷对品牌信任与影响因素的关系进行了验证,将对深入探讨品牌信任关系的影响因素,促进回族老字号品牌成长提供重要的思路。

  15. Prevalence of tobacco and alcohol use in ethnic Hui and Han residents in Ningxia%宁夏回族自治区回、汉族居民烟草、酒精使用调查

    Institute of Scientific and Technical Information of China (English)

    王俊峰; 马辉; 王志忠; 张毓洪

    2015-01-01

    目的 了解宁夏回族自治区(宁夏)回、汉族居民烟草、酒精使用情况及其分布特征,为民族地区改善戒烟、限酒措施提供参考.方法 采用多阶段系统抽样法,抽取宁夏地区≥18岁居民6 476人进行入户调查.烟草和酒精使用障碍根据国际疾病分类-10(ICD-10)标准采用复合型国际诊断交谈表3.0(CIDI 3.0)中文版评估.结果 共有5 811名受访者完成全部调查,目前吸烟率为19.15%,其中男性吸烟率高于女性(44.73%vs.1.51%),差异有统计学意义(x2=1 693.25,P<0.001);男性中回族吸烟率低于汉族(33.19%vs.51.95%),差异有统计学意义(x2=79.99,P<0.001).男性烟草依赖患病率为1.75%,回、汉族男性烟草依赖患病率差异无统计学意义(x2=0.02,P=0.958).目前饮酒率为5.78%,其中男性饮酒率高于女性(12.48% vs.1.16%),差异有统计学意义(x2=329.94,P<0.001);男性中回族饮酒率低于汉族(4.71%vs.17.34%),差异有统计学意义(x2=82.03,P<0.001);男性酒精使用障碍患病率为6.03%,男性回族酒精使用障碍患病率低于汉族(3.50%vs.7.61%),差异有统计学意义(x2=16.68,P<0.001).结论 宁夏地区回族成年人烟草和酒精使用率低于同地区汉族,当地的回族文化对减少人群烟草、酒精使用可能具有积极的影响.%Objective To understand the prevalence of tobacco and alcohol use in ethnic Hui and Han residents in Ningxia Hui autonomous region and provide evidence for the smoking cessation and alcohol use reduction in minority area.Methods Face to face interview was performed in 6 476 subjects aged ≥ 18 years who were selected through systematic sampling in Ningxia.The tobacco use and alcohol use related disorders were evaluated with Composite International Diagnostic Interview 3.0(CIDI 3.0) according to International Classification of Diseases-10 (ICD-10).Results A total of 5 811 subjects completed the survey, the prevalence of current smoking was 19

  16. 集体记忆与民族亲和力的建构——以兰州西关清真寺为例%The Collective Memory and the Construction of Hui Ethnic Identity

    Institute of Scientific and Technical Information of China (English)

    高永久; 丁生忠

    2012-01-01

    在城市空间结构再生产的过程中,城市规模向四周逐渐延伸,市民的居住格局也随之发生变化,原先围寺聚居的回族穆斯林群众,便迁至城市的各个街区角落。通过对散居回族现状和特点的分析,探知其以清真寺为集体记忆的符号,借助集体欢腾、个体情感进发、宗教仪式来建构民族亲和力,以实现其群体和谐的目标。%In the process of the reproduction of urban spatial structures, the size of a city gradually stretches out in all directions. At the same time, people's residential structure changes: the Muslims of Hui Ethnic:Group originally clustering around mosques are now moving to every corner of the city. In this thesis, the authors discuss the status quo and characteristics of the identity of Hui Ethnic Group in order to construct ethnic affinity by using the Mosque as a symbol of collective memory, relying on collective exultation, individual emotional venting and religious rituals, so as to reach the goal of group harmony.

  17. 宁夏地区回汉族中小学生超重肥胖流行趋势分析%Analyses of the prevalence changes of overweight and obesity in Hui and Han students in Ningxia

    Institute of Scientific and Technical Information of China (English)

    许红霞; 石丽文; 赵燚; 杨建军; 金晶; 张毓洪

    2012-01-01

    Objective To analyze the prevalence changes of overweight and obesity in Hui and Han students in Ningxia from 2005 to 2010, in order to provide evidence for development of preventive measures against obesity. Methods Students aged 7 to 18 participated in th? 2005 and 2010 National Survey on Students' Constitution and Health of Ningxia were selected as subjects. The newly established BMI screening criteria for o-verweight and obesity was used to analyze the prevalence among various populations. Results The prevalence rates of overweight among Han boys, Han girls, Hui boys and Hui girls were 10. 1% , 5. 7% ,7. 4% and5.9% in 2010, 7.9% , 5.4% ,4.0% and4.7% in 2005 .respectively. Meanwhile, the prevalence rates of obesity for the Han boys, Han girls, Hui boys, and Hui girls were 5. 1 %, 2.9 % ,4.1% and 2. 6% in 2010,3. 8%, 1.8%,1.9% and 1.3% in 2005 , respectively. The prevalence rates of overweight and obesity were higher among children aged 7-12 than those a-mong other age groups in Hui and Han students of rural and urban areas. The ordinal regression showed that the prevalence of overweight and obesity among students in 2010 were higher than those in 2005 after controlling for Living areas (in urban area or not) , age and gender. Meanwhile, the Han students were higher than those of Hui students. Conclusion The prevalence rates of overweight and obesity increase rapidly and spread from urban to rural areas among Hui and Han students gradually in Ningxia, therefore, it is necessary to take comprehensive measures to prevent and control the obesity of adolescents in Ningxia.%目的 了解宁夏地区2005-2010年回族与汉族不同群体学生超重、肥胖流行趋势,为制定学生肥胖防治措施提供依据.方法 使用2005和2010年宁夏地区全国学生体质调研资料的数据,利用中国学龄儿童青少年超重和肥胖体质量指数(BMI)筛查标准,对7~18岁中小学生进行超重、肥胖筛查.结果 汉族男生超重率2005年为7.9

  18. President Li Xiaolin Visits Saudi Arabia

    Institute of Scientific and Technical Information of China (English)

    Zhang; Min

    2016-01-01

    At the invitation of Prince Alwaleed,chairman of Kingdom Holding Company of Saudi Arabia,CPAFFC President Li Xiaolin led a delegation to visit Saudi Arabia from Feb 16 to 20.During the visit,Ms.Li met with the prince,visited Kingdom Hospital and Kingdom School and held working talks with Alwaleed Philanthropies.During the meeting with Prince Alwaleed,Ms.Li mentioned that Chi-

  19. /sup 7/Li production in Nova explosions

    Energy Technology Data Exchange (ETDEWEB)

    Starrfield, S.; Truran, J.W.; Sparks, W.M.; Arnould, M.

    1978-06-01

    Calculations of /sup 7/Li production occurring as a concomitant of thermonuclear runaways in hydrogen envelopes of white dwarfs are reported. It is found that sufficient /sup 7/Li can be produced in models displaying fast--nova-like features to suggest that the corresponding objects represent significant contributors to the /sup 7/Li enrichment of galactic matter. The sensitivities of these results to various assumptions and uncertainties are discussed.

  20. beta -delayed charged particles from /sup 9/Li and /sup 11/Li

    CERN Document Server

    Langevin, M; Détraz, C; Epherre-Rey-Campagnolle, Marcelle; Guillemaud, D; Klapisch, Robert; Mark, S K T; Naulin, F; Thibault, C; Touchard, F

    1981-01-01

    beta -delayed emission of alpha particles rom /sup 9/Li and of both alpha and /sup 6/He particles from /sup 11/Li is observed. New beta branches are reported which populate high-energy levels in the daughter nuclei. The branching ratios are measured and the beta delayed neutron emission probabilities P/sub n/ for /sup 9/Li and P /sub 3n/ for /sup 11/Li are deduced. (14 refs).

  1. Iodide substitution in lithium borohydride, LiBH{sub 4}-LiI

    Energy Technology Data Exchange (ETDEWEB)

    Rude, Line H., E-mail: line@inano.au.dk [Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C (Denmark); Groppo, Elena, E-mail: elena.groppo@unito.it [Dipartimento di Chimica I.F.M. and NIS, Universita di Torino, Torino (Italy); Arnbjerg, Lene M., E-mail: lenem@chem.au.dk [Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C (Denmark); Ravnsbaek, Dorthe B., E-mail: inadr@inano.au.dk [Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C (Denmark); Malmkjaer, Regitze A., E-mail: regitze.aagaard.malmkjaer@post.au.dk [Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C (Denmark); Filinchuk, Yaroslav, E-mail: Yaroslav.Filinchuk@uclouvain.be [Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C (Denmark); Swiss-Norwegian Beam Lines at ESRF, BP-220, 38043 Grenoble (France); Institute of Condensed Matter and Nanosciences, Universite Catholique de Louvain, Place L. Pasteur 1, B-1348 Louvain-la-Neuve (Belgium); Baricco, Marcello, E-mail: marcello.baricco@unito.it [Dipartimento di Chimica I.F.M. and NIS, Universita di Torino, Torino (Italy); Besenbacher, Flemming, E-mail: fbe@inano.au.dk [Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark); Jensen, Torben R., E-mail: trj@chem.au.dk [Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C (Denmark)

    2011-08-18

    Graphical abstract: Highlights: > Anion substitution in LiBH{sub 4}. > Structure and properties of two LiBH{sub 4}-LiI solid solutions. > Stability upon heating and over time. > Hydrogen storage properties of LiBH{sub 4}-LiI. - Abstract: The new concept, anion substitution, is explored for possible improvement of hydrogen storage properties in the system LiBH{sub 4}-LiI. The structural chemistry and the substitution mechanism are analyzed using Rietveld refinement of in situ synchrotron radiation powder X-ray diffraction (SR-PXD) data, attenuated total reflectance infrared spectroscopy (ATR-IR), differential scanning calorimetry (DSC) and Sieverts measurements. Anion substitution is observed as formation of two solid solutions of Li(BH{sub 4}){sub 1-x}I{sub x}, which merge into one upon heating. The solid solutions have hexagonal structures (space group P6{sub 3}mc) similar to the structures of h-LiBH{sub 4} and {beta}-LiI. The solid solutions have iodide contents in the range {approx}0-62 mol% and are stable from below room temperature to the melting point at 330 deg. C. Thus the stability of the solid solutions is higher as compared to that of the orthorhombic and hexagonal polymorphs of LiBH{sub 4} and {alpha}- and {beta}-LiI. Furthermore, the rehydrogenation properties of the iodide substituted solid solution Li(BH{sub 4}){sub 1-x}I{sub x}, measured by the Sieverts method, are improved as compared to those of LiBH{sub 4}. After four cycles of hydrogen release and uptake the Li(BH{sub 4}){sub 1-x}I{sub x} solid solution maintains 68% of the calculated hydrogen storage capacity in contrast to LiBH{sub 4}, which maintains only 25% of the storage capacity after two cycles under identical conditions.

  2. 福建惠安女文化景观构造及其空间性%Studying on Cultural Landscape Construction and Spatial Characteristics Based on the Case of Women in Hui'an County

    Institute of Scientific and Technical Information of China (English)

    王彬; 李彬

    2012-01-01

    在对福建渔家女文献梳理和文化元素统计基础上,运用女性地理学理论和方法,解读惠安女文化景观构造特征和形成原因.研究结果表明:惠安女文化萌芽于隋唐,发展于宋元,鼎盛于明清;惠安女文化景观空间分布主要集中于以泉州港为中心的沿海半岛地区;惠安女在工种方面已超出传统中国女性从事职业类型,服饰体现海洋文化特征,婚俗表现出向父系过渡遗留和对劳动力争夺的结果,并建立起互助、自救等社会组织.惠安女文化景观是沿海地理环境特征和社会劳动地域分工共同作用的结果.%The paper describes systematiclly the landscape performances and characteristics of women in Hui'an county——a typical fisherwomen in Fujian province——through combing the literatures and assorting and counting cultural elements based on cultural formation,landscape construction and cause analysis by feminism and theories and methods of cultural geography.The indings show that the phenomenon of women culture in Hui'an county had appeared as early as during Sui and Tang Dynasties,and gained a large-scale development during Song and Yuan Dynasties and the landscapes had been built up during Ming and Qing Dynasties.As to the distribution in space,women in Hui'an county mainly live in the east costal areas of Hui'an county,which are circled by Meizhou gulf where the city of Quanzhou as the center of the gulf.In the view of cultural formation,women do more than the ones in other areas in China,even they engage in what men do in many work fields in Chinese traditional society,their apparels embody cultural characteristics of marine,the customs on marriage is the outcomes which hawe been handed down from the transition to patriarchal society and struggled for each other between their parents and in-laws,and types of social organizations are created for help each other among women.So the cultural landscapes of women in Hui'an county is a

  3. Li Xiuying’s Family Planning Center

    Institute of Scientific and Technical Information of China (English)

    1996-01-01

    PEOPLE in Yinan County refer to Li Xiuying, a doctor highly respected for her gynecological and obstetrics surgical skills, as "Magic Scalpel Li." Li Xiuying assumed the post as vice director of the Department of Gynecology and Obstetrics in the People’s Hospital in Yinan County at the young age of 27. She held the post for 12 years until 1988 when she was became director of the county’s Family Planning Service Center. Li had never pursued the new position, and was unable to accept the unexpected transfer, preferring instead to continue working in the Department of Gynecology and Obstetrics throughout her career.

  4. 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.

  5. Synthesis of LiAlTiO4 and its selectivity to Li+ exchange

    Institute of Scientific and Technical Information of China (English)

    Dong Dianquan; Zhang Fengbao; Zhang Guoliang; Liu Yifan

    2006-01-01

    The ion-exchanger LiAlTiO4 of spinel type was prepared by the common precipitation/hydrothermal crystallization method,and was acid-modified.Its ion-exchange properties for alkali ions such as saturation capacity of exchange,distribution coefficient and pH titration curve were determined.LiAlTiO4 was characterized by the X-ray diffraction method.The acid treatment of LiAlTiO4 caused Li+ extraction ratio to change from 28% to 72%,while the dissolution of Al is less than 6.8%.This inorganic ion-exchanger (LiAlTiO4-700) has a higher saturation capacity of exchange for Li than for other alkali ions,the saturation capacity of exchange for Li+ reaches 4.29 mmol/g (30.03 mg/g); LiAlTiO4-700(H) has a higher selectivity of ion exchange for Li+ than for other alkali ions.These results show LiAlTiO4-700(H) has better memory and selectivity of ion exchange,and higher capacity of ion exchange for Li+.It is a kind of prospective ionic sieve for Li+.

  6. Structure of {sup 10}Li from the properties of {sup 11}Li

    Energy Technology Data Exchange (ETDEWEB)

    Garrido, E. [Inst. de Estructura de la Materia, CSIC, Madrid (Spain); Fedorov, D.V.; Jensen, A.S. [Inst. of Physics and Astronomy, Univ. of Arhus (Denmark)

    2003-07-01

    The resonances of the neutron-{sup 9}Li two-body system are decisive for the description of the {sup 11}Li three-body system. Known properties narrow down the uncertainties provided the finite spin of the {sup 9}Li are properly accounted for. The positions of two doublets of 1{sup {+-}} and 2{sup {+-}} are predicted. (orig.)

  7. FINAL MASTER PLAN FOR STELLA, MISSOURI

    Science.gov (United States)

    The application of sustainability to place is the outcome of responding to human needs and expectations within economic, social, and environmental constraints and desired performance of these systems. These constraints and performance requirements of these systems provides a way ...

  8. Stella Maris Nursing Home, Baylough, Athlone, Westmeath

    LENUS (Irish Health Repository)

    Quinn, Edel Marie

    2013-01-01

    Chronic ulcers affect roughly 60,000 Irish people, at a total cost of €600,000,000, or €10,000 per patient annually. By virtue of their chronicity, these ulcers also contribute a significant burden to tertiary outpatient vascular clinics.

  9. Stella Maris Nursing Home, Baylough, Athlone, Westmeath.

    LENUS (Irish Health Repository)

    Reid, Antoinette M

    2009-01-01

    The application of an acid digestion and subsequent solid-phase extraction (SPE) procedure were implemented as preliminary treatments prior to quantifying the levels of potentially endocrine disrupting metals (EDMs) in a variety of solid and liquid matrices. These included (solid) river sediment, leachate sediment and sewage sludge and also (liquid) river water, landfill leachate, concentrated leachate, sewage influent, and sewage effluent, sampled in the Irish Midlands. The total concentrations of cobalt (Co), cadmium (Cd), copper (Cu), chromium (Cr), nickel (Ni), lead (Pb), zinc (Zn), and manganese (Mn), after extraction and preconcentration, were determined by atomic absorption spectroscopy (AAS). Mercury (Hg) in sediment and sludge was determined using cold-vapour atomic fluorescence spectroscopy (AFS). For sewage sludge maximum values (mg\\/kg(dw)) of 4700 Ni, 1642 Mn, 100.0 Cd, 3400 Zn, 36.70 Co, 750.0 Pb, 485.8 Cr, and 1003 Cu were determined whilst in leachate sediment, maximum values (mg\\/kg(dw)) of 32.10 Ni, 815.0 Mn, 32.78 Cd, 230.3 Zn, 26.73 Co, 3525 Pb, 124.9 Cr, and 50.13 Cu were found. Over several months, the data showed elevated levels in sewage influents, effluents, and sludges compared to a battery of adjacent river water samples and corresponding sediments. There was a definite trend for target values for sediments to be exceeded, while intervention values were only exceeded for cadmium. Overall the pattern in terms of concentration was sewage > leachate > river matrices. A nonparametric assessment of the effect of sewage treatment method on median metal levels in sludge revealed statistically significant differences at the 95% level of confidence for Co, Cr, and Hg and at the 90% level of confidence for Cd.

  10. Simulation Modeling on the Macintosh using STELLA.

    Science.gov (United States)

    Costanza, Robert

    1987-01-01

    Describes a new software package for the Apple Macintosh computer which can be used to create elaborate simulation models in a fraction of the time usually required without using a programming language. Illustrates the use of the software which relates to water usage. (TW)

  11. Analysis of Sinkiang Hui People’ s Flower From Interdisciplinary Perspective---A Case Study of Sinkiang Yanqi Hui People Autonomous County%跨学科视域下新疆回族花儿探究--以新疆焉耆回族自治县为例

    Institute of Scientific and Technical Information of China (English)

    张云; 张付新

    2016-01-01

    The flower ( folk song) of Yanqi Hui nationality,with obvious regional,mul-ticultural and ethnic characters,is a prominent representative of Sinkiang. The origin,repre-sentation,artistic feature,historical significance and cultural value are analyzed from the per-spective of history anthropology,sociology,and economy anthropology. It is pointed out that multi-ethnic and cultural diversity and richness make effective way to promote ethnic com-munication and integration. This is also a necessary spiritual drive and cultural source for social stability in Sinkiang.%焉耆回族花儿是新疆回族花儿的杰出代表,其地域性、多元性和民族性特征非常明显。本文则通过历史人类学、社会学、经济人类学的学科视野对焉耆回族花儿的渊源流变、表现方式、艺术特征、历史意蕴和文化价值进行了深入的剖析,并指出民族文化的多样性和丰富性是构建新疆各民族交往交流交融的有效途径,也是实现新疆社会稳定和长治久安不可替代的精神动力和文化源泉。

  12. Li ion diffusion in LiAlO2 investigated by Raman spectroscopy

    Science.gov (United States)

    Hu, Qiwei; Lei, Li; Jiang, Xiaodong; Feng, Zhe Chuan; Tang, Mingjun; He, Duanwei

    2014-11-01

    The temperature dependence of Li ions behavior of γ-LiAlO2 has been studied from 78 to 873 K. On heating, the Li ions underwent positional disordering along the structural channels, with the Li ions related modes at 220, 366 and 400 cm-1 broadening and weakening dramatically. An anomalous maximum in the bandwidths of the Li ions related modes is observed. It should be apparent that there are at least two distinct thermally activated processes. A model suggested by Andrade and Porto is used to describe the linewidth of a phonon.

  13. Optimized synthesis technology of LiFePO4 for Li-ion battery

    Institute of Scientific and Technical Information of China (English)

    QU Tao; TIAN Yan-wen; DING Yang; ZHONG Can-yun; ZHAI Yu-chun

    2005-01-01

    The influence of factors of the carbon black content, sintering temperature, sintering time, molar ratio of Li to Fe, as well as the electrochemical properties of LiFePO4 for lithium ion battery were studied. The only technology was obtained by using range analysis through Latin orthogonal experiment of L44 (16). The results show that the optimization synthesis technology of LiFePO4 is content of 5% doping carbon, sintering temperature of 700 ℃,molar ratio of Li to Fe of 1.03 : 1 and sintering time of 16 h. The optimized cathode synthesis techniques can make LiFePO4 have good electrochemical properties.

  14. Kinetic measurement and prediction of the hydrogen outgassing from the polycrystalline LiH/Li2O/LiOH system

    Energy Technology Data Exchange (ETDEWEB)

    Dinh, L N; Grant, D M; Schildbach, M A; Smith, R A; Siekhaus, W J; Balazs, B; Leckey, J H; Kirkpatrick, J; McLean II, W

    2005-04-06

    Due to the exothermic reaction of lithium hydride (LiH) salt with water during transportation and handling, there is always a thin film of lithium hydroxide (LiOH) present on the LiH surface. In dry or vacuum storage, this thin LiOH film slowly decomposes. We have used temperature-programmed reaction/decomposition (TPR) in combination with the isoconversion method of thermal analysis to determine the outgassing kinetics of H{sub 2}O from pure LiOH and H{sub 2} and H{sub 2}O from this thin LiOH film. H{sub 2} production via the reaction of LiH with LiOH, forming a lithium oxide (Li{sub 2}O) interlayer, is thermodynamically favored, with the rate of further reaction limited by diffusion through the Li{sub 2}O and the stability of the decomposing LiOH. Lithium hydroxide at the LiOH/vacuum interface also decomposes easily to Li{sub 2}O, releasing H{sub 2}O which subsequently reacts with LiH in a closed system to form H{sub 2}. At the onset of dry decomposition, where H{sub 2} is the predominant product, the activation energy for outgassing from a thin LiOH film is lower than that for bulk LiOH. However, as the reactions at the LiH/Li{sub 2}O/LiOH and at the LiOH/vacuum interfaces proceed, the overall activation energy barrier for the outgassing approaches that of bulk LiOH decomposition. The kinetics developed here predicts a hydrogen evolution profile in good agreement with hydrogen release observed during long term isothermal storage.

  15. 基于STELLA和气候变化情景的灌区农业供需水量模拟%Simulation of agricultural water supply and demand at irrigation district under climate change using STELLA

    Institute of Scientific and Technical Information of China (English)

    冯东溥; 魏晓妹; 降亚楠; 李萍

    2015-01-01

    Climate change has significant influences on irrigation water demand (IWD) and available irrigation water supply (IWS), which poses grave challenges to farmers and administrators of agriculture and water resources. Due to the complexity and uncertainties from climate, agriculture and water systems, only a few studies have combined these systems together, especially at irrigation district scale. Furthermore, most climate change scenarios (CCS) are continuous time series with uncertainties, meanwhile the corresponding CCS of the typical hydrological years are deficient. Thus it is difficult for the administrators from water sectors and agriculture to make positive responses to climate change. The object of the study was to provide an approach to estimate and assess the influences of climate change on IWS and IWD systems in irrigation district. The study area was a typical northern irrigation district of China, the Baojixia Irrigation District. The model considering IWD, IWS and CCS was developed using system dynamics software i.e. structure thinking experimental learning laboratory with animation (STELLA). There were four function modules:IWDM, IWSM, CCSM and WSDBI. CCSM included the reference crop evapotranspiration (ET0) and the climate factors of future typical hydrological years. Climate factors (i.e. precipitation, air temperature, wind speed, relative humidity and sunshine duration) were predicted using historical data and hydrological frequency calculation principle of inconsistent series. ET0 was calculated by Penman-Monteith equation from the Food and Agriculture Organization of the United Nations (FAO) based on the predicted climate factors. IWDM calculated the irrigation water demands of main crops (wheat, maize, cotton, cole and apple). Crop water requirement was calculated by a simple soil water balance model including effective precipitation, crop coefficient (Kc) and ET0. Net irrigation water demand (NIWD) was the sum of crop water requirements

  16. 焦作地区回汉族糖尿病发病率调查分析%Incidence investigation of diabetes mellitus in Hui and Han population of Jiaozuo region

    Institute of Scientific and Technical Information of China (English)

    李清红; 袁新建; 王红心

    2012-01-01

    Objective To explore the prevalence and characteristics of diabetes mellitus in Hui and Han population aged 30 years and over in Jiaozuo. And to analyze the association between the prevalence of diabetes mellitus and body mass index(BMI). Methods We conducted a case-control study with 663 people aged 30-81 years. Among the total,337 subjects were Hui population, 326 subjects were Han population. Among them, integrated records of body height,body mass,waist circumference(WC) ,hip circumference,blood pressure,fasting plasma glucose were analyzed. The waist hip ratio (WHR) and BMI were computed. Over weight was defined as BMI≥24,and the criteria of central obesity:WC≥90 cm for men,WC≥80 cm for women. Excel was used to build database, SPSS 10.0 was used for analyses. Results Systolic blood pressure, diastolic blood pressure, body mass, BMI, WC, hip circumference, WHR in Hui population were significantly higher than those in Han population ( P < 0. 05 or <0. 01). The prevalence of diabetes in Hui of Jiaozuo was 38. 6% (130/337), while that was 8. 3% (27/326) for Han, and the difference was statistically significant P <0. 01); Meanwhile, the Hui was significantly higher than 9.7% (4 949/46 239) of the national incidence, the difference was statistically significant ( P<0. 01). Abdominal obesity diabetes prevalence and non-abdominal obesity diabetes prevalence in Hui was higher than those in Han. Abdominal obesity diabtes prevalence 30. 0%(101/337) vs8.0%(26/326)(P<0. 05),non-abdominal obesity diabetes prevalence 8. 6% (29/337) vs 0.3% (10/326) ( P <0. 01), respectively. Conclusion The prevalence of diabetes in the Hui of Jiaozuo was significantly higher than the national average,while the Han and the national prevalence of diabetes is close. Elevated BMI and WC are major risk factors of diabetes, controlling for BMI and WC increase is important to reduce the incidence of diabetes.%目的 探索焦作地区回汉族糖尿病的患病率及其与体

  17. 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...

  18. 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

  19. Phase evolution of Li{sub 2}ND, LiD and LiND{sub 2} in hydriding/dehydriding of Li{sub 3}N

    Energy Technology Data Exchange (ETDEWEB)

    Chien, W.-M.; Lamb, Joshua [Metallurgical Materials Engineering, MS 388, University of Nevada, Reno, NV 89557 (United States); Chandra, Dhanesh [Metallurgical Materials Engineering, MS 388, University of Nevada, Reno, NV 89557 (United States)], E-mail: dchandra@unr.edu; Huq, Ashfia [Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States); Richardson, James; Maxey, Evan [Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, IL 60439 (United States)

    2007-10-31

    Neutron and synchrotron studies have been performed on in situ hydriding of Li{sub 3}N. Commercial Li{sub 3}N is composed of {alpha} phase ({approx}70 wt.%) and {beta} phase ({approx}30 wt.%). We have performed experiments to convert {beta} {yields} {alpha}, and studied in situ deuteration using neutron diffraction experiments. We found concurrent phase evolution of Li{sub 2}ND, LiD, and LiND{sub 2}. Mass percentages of the phases evolved as a function of time and temperature have been quantified using General Structure Analysis System (GSAS) refinement of the neutron diffraction data. The problem of formation of the stable LiD is discussed in light of decreasing of the amount of LiD phase when the temperature is increased from 200 to 320 deg. C during dehydriding, and in addition the concentration of Li{sub 2}ND phase increased at this temperature. Lattice parameters, volume changes, phase evolutions in wt.% as a function of temperature and time are presented.

  20. Li-5(BH4)(3)NH

    DEFF Research Database (Denmark)

    Wolczyk, Anna; Paik, Biswajit; Sato, Toyoto

    2017-01-01

    = 7.0474(2) angstrom at 77 degrees C. The crystal structure of Lis(BH4)(3)NH has been solved in space group Pnma, and refined coupling density functional theory (DFT) and synchrotron radiation X-ray powder diffraction data have been obtained for a 3LiBH(4):2Li(2)NH ball-milled and annealed sample...

  1. 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

  2. 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.

  3. 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

    2016-10-05

    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.

  4. Electrochemistry of LiCl-Li2O-H2O Molten Salt Systems

    Energy Technology Data Exchange (ETDEWEB)

    Natalie J. Gese; Batric Pesic

    2013-03-01

    Uranium can be recovered from uranium oxide (UO2) spent fuel through the combination of the oxide reduction and electrorefining processes. During oxide reduction, the spent fuel is introduced to molten LiCl-Li2O salt at 650 degrees C and the UO2 is reduced to uranium metal via two routes: (1) electrochemically, and (2) chemically by lithium metal (Li0) that is produced electrochemically. However, the hygroscopic nature of both LiCl and Li2O leads to the formation of LiOH, contributing hydroxyl anions (OH-), the reduction of which interferes with the Li0 generation required for the chemical reduction of UO2. In order for the oxide reduction process to be an effective method for the treatment of uranium oxide fuel, the role of moisture in the LiCl-Li2O system must be understood. The behavior of moisture in the LiCl-Li2O molten salt system was studied using cyclic voltammetry, chronopotentiometry and chronoamperometry, while reduction to hydrogen was confirmed with gas chromatography.

  5. 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.

    2016-01-01

    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.

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

    Energy Technology Data Exchange (ETDEWEB)

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

    2016-10-05

    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 anode1, 2, 3. While the direct use of Li metal may be highly advantageous4,5, at present its practical application is limited by issues related to dendrite growth and low Coulombic efficiency (CE)6. 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.

  7. Theoretical and Experimental Study of LiBH4-LiCl Solid Solution

    Directory of Open Access Journals (Sweden)

    Torben R. Jensen

    2012-03-01

    Full Text Available Anion substitution is at present one of the pathways to destabilize metal borohydrides for solid state hydrogen storage. In this work, a solid solution of LiBH4 and LiCl is studied by density functional theory (DFT calculations, thermodynamic modeling, X-ray diffraction, and infrared spectroscopy. It is shown that Cl substitution has minor effects on thermodynamic stability of either the orthorhombic or the hexagonal phase of LiBH4. The transformation into the orthorhombic phase in LiBH4 shortly after annealing with LiCl is for the first time followed by infrared measurements. Our findings are in a good agreement with an experimental study of the LiBH4-LiCl solid solution structure and dynamics. This demonstrates the validity of the adopted combined theoretical (DFT calculations and experimental (vibrational spectroscopy approach, to investigate the solid solution formation of complex hydrides.

  8. 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.

  9. 黑人女性身份建构研究--以《斯苔拉如何回到最佳状态》为例%A Study on the Identity Construction of Black Women in Terry McMillan’s How Stella Got Her Groove Back

    Institute of Scientific and Technical Information of China (English)

    毛艳华

    2016-01-01

    With post-colonial feminism as the theoretical support, the paper has examined the problem of identity construction and the implications of body, gender labor difference and race in Terry McMillan’s novel How Stella Got Her Groove Back. Although they were living in the post-civil right movement age , women characters in her novels were still troubled by gender oppression and racial discrimination. Stella , as the representative of these women, dared to break the gender and race regulations and construct her identity as a black woman, which clearly demonstrated McMillan’s consideration of problem of identity construction.%文章运用后殖民女性主义理论,考察当代美国黑人女性作家麦克米兰的小说《斯苔拉如何回到最佳状态》中的女性身份建构问题及其所蕴涵的身体、劳动性别分工和种族观念。麦克米兰的作品关注当代美国黑人女性的生存状况,其笔下的女性人物尽管生活在后民权主义时代,但仍然会遭遇性别、种族甚至阶级等方面的歧视与压迫。斯苔拉作为这些女性的典型代表,勇于挑战性别规范、冲破劳动分工观念束缚,以开放、自主的心态积极建构自我身份,彰显了作者关于女性身份问题所作的时代思考。

  10. Empirical Research on Hui-honored Consumers Intergenerational Transmission and Brand Loyalty%回族老字号消费者代际传承与品牌忠诚关系实证研究

    Institute of Scientific and Technical Information of China (English)

    杨保军; 马玉龙

    2015-01-01

    Consumers' cultural values based on the intergenerational transmission of family ties had an impor-tant impact on consumer behavior,as well as the consumer brand awareness and the brand trust.The consum-ers of Hui Old brand exhibited unique consumption characteristics owe to ethnic,religious and geographical effect,the intergenerational transmission of consumer groups in the Hui old brand more prominent.Empirical research showed that the impact of Hui old brand intergenerational transmission on brand awareness,brand trust and brand loyalty was significantly positive.Based on the perspective of intergenerational transmission,en-hancing consumers' brand loyalty had an important enlightenment to promote the brand development and tradi-tions cultural heritage,and own brand competitiveness.%基于家庭纽带的代际传承形成的消费者文化价值观深刻影响着消费者行为,使消费者品牌认知、品牌信任的形成无不带有代际影响的烙印。回族老字号的消费者受到民族、宗教、地域的影响表现出独特的消费特征,代际传承在回族老字号消费群体更为突出。从实证角度深入研究回族老字号消费者代际传承对品牌认知、品牌信任以及品牌忠诚的影响,呈现出显著的正相关关系。基于代际传承视角提升消费者品牌忠诚度对推动老字号品牌发展和传统文化的传承和推广以及自有品牌竞争力的提升都具有重要的启示意义。

  11. 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.

  12. Références bibliographiques du dossier « Les grands débats éducatifs aujourd’hui »

    OpenAIRE

    Vervisch-Lestrade, Maryannick

    2013-01-01

    Cette bibliographie thématique présente une sélection de documents récents, français et étrangers, consultables au CIEP. Liée au dossier de la revue, elle est organisée par rapport à la logique de celui-ci. La plupart des références y sont donc classées selon l’ordre alphabétique des grandes régions du monde, les documents présentant un caractère international figurant en tête de la liste. International BANQUE MONDIALE. Priorités et stratégies pour l’éducation : une étude de la Banque mondial...

  13. Pharmacokinetics of doxapram in Chinese Hui and Han healthy volunteers%多沙普仑在中国回族和汉族健康人体内的药动学

    Institute of Scientific and Technical Information of China (English)

    肖勇; 程佳; 郭涛; 夏东亚; 郑谊; 郭红亮

    2011-01-01

    Objective:To investigate the pharmacokinetics of doxapram in Chinese Hui and Han healthy volunteers. Methods:Ten Hui volunteers and ten Han volunteers were given a single dose of 50 mg doxapram by intravenous infusion. The concentration of doxapram in plasma was determined by HPLC method, and the pharmacokinetic parameters were calculated by DAS 2. 0 software. ResultS:The main pharmacokinetic parameters of Hui volunteers were as follows: cmax 48±0. 46) μg/ml, t1/2β(3. 91±2.05) h,Vd(l. 35±0.45) L/kg,AUC0-12 (3. 02±0. 56)μg · h · ml-1 ,AUC0-∞(3. 49 + 0. 73) μg · h · ml-1. The main pharmacokinetic parameters of Han volunteers were as follows: cmax( 55±0. 52) μg/ml,t1/2β(3. 87 + 2. 17) h,Vd(l. 35± 0. 96) L/kg,AUC0-12(3. 51±1. 26)μg· h · ml-1, AUC0-∞ (4. 06±l. 44) μg · h· ml-1. Conclusion:There were no significant differences in the pharmacokinetic parameters of doxapram between Chinese Hui and Han healthy volunteers.%目的:研究汉族和回族健康受试者单次静脉滴注盐酸多沙普仑后的药动学.方法:回族和汉族健康受试者各10名,单次静脉滴注盐酸多沙普仑50 mg,定时采血,用HPLC法测定多沙普仑血药浓度,DAS 2.0软件计算药动学参数.结果:回族受试者的主要药动学参数为:cmax(1.48±0.46) μg/ml、t1/2β(3.91±2.05) h、Vd(1.35±0.45) L/kg、AUC0~12(3.02±0.56) μg·h·ml-1、AUC0~∞(3.49±0.73) μg·h·ml-1.汉族受试者的主要药动学参数为:cmax(1.55±0.52) μg/ml、t1/2β(3.87±2.17) h、Vd(1.35±0.96) L/kg、AUC0~12(3.51±1.26) μg·h·ml-1、AUC0~∞(4.06±1.44) μg·h·ml-1.结论:经统计学分析,回族和汉族健康受试者单次静脉滴注盐酸多沙普仑后药动学参数的差异无统计学意义.

  14. The First Chinese Translator of Pushkin's Works--JI YI-hui and Pushkin%普希金"初临中土"的向导--戢翼翚与普希金

    Institute of Scientific and Technical Information of China (English)

    张铁夫

    2000-01-01

    JI Yi-hui was the first Chinese who translated Pushkin's works. Pushkin's "Daughter of lieutenant"was translated from Japanese by him and he gave this Chinese version a new name "Romance of Russia". This version was an assimilative one. There were quite big discrepancies over the book's name, characters' name, person, type and number of words between the Chinese version and the Russian original. However, It was not JI yi-hui but the Japanese translator who should bear full responsibility for these. Because the Japanese version was an abridged one itself and all the divergences above-mentioned could be fould there. Ji's version was not a perfect one, but it was the very beginning for the Chinese to translate pushkin's works and other Russian literary master pieces and therefore had a profound significance in the history of literature.%普希金的第一部汉译作品是《上尉的女儿》,译本题作《俄国情史》,系据日文转译,译者为戢翼翚。这是一部归化式译作,书名、人名、人称、体裁、字数均与原作有较大的出入。不过,责任主要不在中译者,而在日译者。日译本本身就是一个缩写本,上述问题都是目译本所存在的。戢译《俄国情史》虽是一部很不完善的译作,但它开了翻译普希金作品和俄国文学名著的先河,因而具有重要意义。

  15. The Comparison of the Self -Consciousness Developing Situation on the Hui -Nationality Girls and Han -Nationality Girls%回族与汉族女童自我意识发展状况的对比研究

    Institute of Scientific and Technical Information of China (English)

    罗媛; 丁仲学; 李鹏程

    2015-01-01

    In this paper,use the Piers -Harris children's self -consciousness scale (PHCSS),by investiga-ting 535 Han nationality girls and 418 Hui nationality girls.The results showed that:1.The behavior of the Hui nationality girls,body appearance and properties,anxiety,to fit in with the obvious differences in grade four as-pects,and the Han girls intelligence with the school situation,the body appearance and attributes have significant differences in grade;2.The behavior of the self -consciousness of the girls,intelligence and school situation,the body appearance and properties,sociable,happiness and satisfy the five dimensions have significant ethnic differ-ences.%本文采用 Piers -Harris 儿童自我意识量表(PHCSS),通过调查535名汉族女童和418名回族女童。结果发现:1.回族女童的行为、躯体外貌与属性、焦虑、合群这四个方面在年级上存在显著差异,而汉族女童的智力与学校情况、躯体外貌与属性在年级上存在显著差异;2.女童自我意识的行为、智力与学校情况、躯体外貌与属性、合群、幸福与满足五个因子上存在显著的民族差异性。

  16. Effect of a pyrrolidinium zwitterion on charge/discharge cycle properties of Li/LiCoO2 and graphite/Li cells containing an ionic liquid electrolyte

    Science.gov (United States)

    Yamaguchi, Seitaro; Yoshizawa-Fujita, Masahiro; Takeoka, Yuko; Rikukawa, Masahiro

    2016-11-01

    Ionic liquids (ILs) containing zwitterions have been studied as electrolytes for lithium-ion batteries (LIBs). The effects of addition of a pyrrolidinium zwitterion in an IL electrolyte on the thermal and electrochemical stability and charge/discharge properties of Li/LiCoO2 and graphite/Li cells were investigated. The thermal decomposition temperature of the IL electrolyte composed of N-methyl-N-propylpyrrolidinium bis(fluorosulfonyl)amide ([P13][FSA])/lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) with 3-(1-butylpyrrolidinium)propane-1-sulfonate (Bpyps) as the zwitterionic additive, the thermal decomposition temperature was about 300 °C. The electrochemical window of [P13][FSA]/LiTFSA/Bpyps was 0-+5.4 V vs. Li/Li+, which was almost identical to that of [P13][FSA]/LiTFSA. Li|electrolyte|LiCoO2 cells containing the IL/Bpyps electrolyte system exhibited high capacities in the cut-off voltage range of 3.0-4.6 V, even after 50 cycles. The increase in the interfacial resistance between the electrolyte and cathode with cycling was suppressed. In the cyclic voltammograms of cells employing a graphite electrode, the intercalation/deintercalation of lithium ions were observed in the range of 0 and + 0.4 V vs. Li/Li+. Further, graphite|electrolyte|Li cells containing [P13][FSA]/LiTFSA/Bpyps exhibited stable charge/discharge cycle behaviour over 50 cycles.

  17. Flowering Biological Characteristics of Lycium barbarum in Guyuan, Ningxia Hui Autonomous Region%宁南固原枸杞开花生物学特性

    Institute of Scientific and Technical Information of China (English)

    罗术东; 王彪; 褚忠桥; 吴杰; 杨文寿; 张俊丽

    2011-01-01

    为明确宁夏南部山区枸杞的开花生物学特性,以当地枸杞主栽品种“宁杞一号”为材料,于2008-2010年对枸杞的开花物候、花粉活力、柱头可授性、泌蜜规律、花粉胚珠比和杂交指数等进行研究.结果表明,宁杞1号单花花期一般为3d左右,老眼枝花期在4月下旬至5月上旬,七寸枝花在5月下旬至7月上旬,盛花期在5月下旬至6月下旬.花后2h开始散粉,但花粉在散粉前就具有活力,花后6h活性最强,72 h时花粉基本散尽且残余花粉活力很低.花后27 h内,5 a生树七寸枝花粉活力高于同时期10 a生树的花粉活力,其他时间段花粉活力基本一致.柱头在松蕾期和花后3h内均不具备可授性,花后3h开始具有可授性,18~36 h达最强,36 h候后可授性逐渐下降,花后60 h时基本丧失可授性.一天当中,枸杞单花蜜量7:00最大,此后在蜜量上逐渐减少,但含糖量上升,到15:00以后蜜量开始出现回升趋势.七寸枝初花期的蜜量显著高于老眼枝,而5a生七寸枝在盛花期的蜜量显著高于10 a生树.枸杞单花花粉量约为241 000粒,花粉胚珠比介于4 918~6 694之间,杂交指数(OCI)为5,因而可以断定枸杞的繁育系统为专性异交类型,需要传粉媒介为其传粉.%To identify the flowering biological characteristics of Chinese wolf berry in the southern of Ningxia Hui autonomous region, the floral biological characteristics, pollen viability, stigma receptivity, nectar secretion rhythm, pollen ovule ratio and outcrossing index of "Ningqi 1" were investigated in this paper. The results suggested that the old branches flowered from the late of April to the first ten days of May, but the new branches flowered from the late of May to the first ten days of July, and the full-bloom stage started from the late of May to the late of June, and most of flowers bloom about 3 days. The pollen can maintain viability since the late of bud stage, the flower has the strongest

  18. The single electrode Peltier heats of Li{sup +}/Li, H{sub 2}/H{sup -} and Li{sup +}/Pd-Li couples in molten LiCl-KCl systems

    Energy Technology Data Exchange (ETDEWEB)

    Nakajima, Hironori; Nohira, Toshiyuki; Ito, Yasuhiko [Kyoto Univ., Dept. of Fundamental Energy Science, Kyoto (Japan)

    2004-10-30

    The thermoelectric power of the Li{sup +}/Li couple was measured in a LiCl-KCl eutectic melt at 633-773 K. The obtained value, 0.089 mV K{sup -1}, gives the single electrode Peltier heat for the reaction Li{sup +}+e{sup -} <--> Li as -5.8 kJ F{sup -1} at 673 K (endothermic cathodic reaction). The single electrode Peltier heat for the reaction 1/2H{sub 2} + e{sup -} <--> H{sup -} in a molten LiCl-KCl-LiH system has been calculated using the temperature dependence of the equilibrium potential of the H{sub 2}/H{sup -} couple measured with reference to the Li{sup +}/Li potential, which gives 5.8 kJ F{sup -l} (exothermic cathodic reaction) under the condition of hydrogen pressure of 1.0 atm, H{sup -} ion concentration of 0.01 (anion fraction) and 673 K. The single electrode Peltier heats for formation of Pd-Li alloys have been also evaluated. (Author)

  19. Li ion diffusion mechanisms in LiFePO4: an ab initio molecular dynamics study.

    Science.gov (United States)

    Yang, Jianjun; Tse, John S

    2011-11-17

    The mechanisms for thermal (self) diffusion of Li ions in fully lithiated LiFePO(4) have been investigated with spin polarized ab initio molecular dynamics calculations. The effect of electron correlation is taken into account with the GGA+U formalism. It was found that Li ion diffusion is not a continuous process but through a series of jumps from one site to another. A dominant process is the hopping between neighboring Li sites around the PO(4) groups, which results in a zigzag pathway along the crystallographic b-axis. This observation is in agreement with a recent neutron diffraction experiment. A second process involves the collaborative movements of the Fe ions leading to the formation of antisite defects and promotes Li diffusion across the Li ion channels. The finding of the second mechanism demonstrates the benefit of ab initio molecular dynamics simulation in sampling diffusion pathways that may not be anticipated.

  20. First-principles study of Li ion diffusion in LiFePO4

    Science.gov (United States)

    Ouyang, Chuying; Shi, Siqi; Wang, Zhaoxiang; Huang, Xuejie; Chen, Liquan

    2004-03-01

    The diffusion mechanism of Li ions in the olivine LiFePO4 is investigated from first-principles calculations. The energy barriers for possible spatial hopping pathways are calculated with the adiabatic trajectory method. The calculations show that the energy barriers running along the c axis are about 0.6, 1.2, and 1.5 eV for LiFePO4, FePO4, and Li0.5FePO4, respectively. However, the other migration pathways have much higher energy barriers resulting in very low probability of Li-ion migration. This means that the diffusion in LiFePO4 is one dimensional. The one-dimensional diffusion behavior has also been shown with full ab initio molecular dynamics simulation, through which the diffusion behavior is directly observed.

  1. 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.

  2. Effect of the composition of Al-Li alloys on the quantitative relation between the δ'(Al3Li), S1(Al2MgLi), and T1(Al2CuLi) phases

    Science.gov (United States)

    Betsofen, S. Ya.; Antipov, V. V.; Grushin, I. A.; Knyazev, M. I.; Khokhlatova, L. B.; Alekseev, A. A.

    2015-01-01

    Al-Li alloys are considered. A quantitative approach to the determination of the ratio of the fractions of the binary and ternary intermetallic phases in Al-Mg(Cu)-Li alloys is developed on the basis of chemical and phase composition balance equations and the experimentally measured lattice parameter of the α solid solution. The ratio of the fractions of the δ'(Al3Li) and S1(T1) phases in Al-Mg(Cu)-Li alloys is shown to be determined by the ratio of the mole fractions of Li and Mg(Cu). Equations are proposed for calculating the weight fractions of the S1(Al2MgLi), T1(Al2CuLi) and δ'(Al3Li) phases in domestic and foreign Al-Mg-Li alloys 1420, 1424, 5090 and Al-Cu-Li alloys 1440, 1460, 1461, 1441, 1469, 2090, 2095, 8090, and Weldalite 049.

  3. Strain imaging of a LiCoO2 cathode in a Li-ion battery

    Science.gov (United States)

    Matsushita, Yuki; Osaka, Ryuma; Butsugan, Kenta; Takata, Keiji

    2016-09-01

    Li-ion batteries have been recognized as promising devices for a sustainable society. Layered LiCoO2 and graphite are commonly used as electrode materials for Li-ion batteries. When charging and discharging, Li-ions are extracted or inserted into the interlayers, which causes changes in volume. Scanning probe microscopy (SPM) can allow high resolution imaging of these volume changes, which enables us to investigate Li-ion migration without destruction. We observed volume changes in the LiCoO2 cathode using SPM and successfully imaged the distribution of the volume changes corresponding to the LiCoO2 particles. Volume changes in the interspace were significantly larger than those in the particles. The large volume changes are caused by electrolyte flux induced by changes in concentration of Li ions. The volume changes were greatly reduced when the electrolyte dried out. The dry-out and infiltration of electrolyte between the LiCoO2 particles and the current collector spread out with the procedure of degradation of the batteries. The boundaries between the dry-out and infiltration regions acted as barriers of electrolyte flux.

  4. Uniform second Li ion intercalation in solid state {var_epsilon}-LiVOPO4

    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.

  5. 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.

  6. [100]-Oriented LiFePO4 Nanoflakes toward High Rate Li-Ion Battery Cathode.

    Science.gov (United States)

    Li, Zhaojin; Peng, Zhenzhen; Zhang, Hui; Hu, Tao; Hu, Minmin; Zhu, Kongjun; Wang, Xiaohui

    2016-01-13

    [100] is believed to be a tough diffusion direction for Li(+) in LiFePO4, leading to the belief that the rate performance of [100]-oriented LiFePO4 is poor. Here we report the fabrication of 12 nm-thick [100]-oriented LiFePO4 nanoflakes by a simple one-pot solvothermal method. The nanoflakes exhibit unexpectedly excellent electrochemical performance, in stark contrast to what was previously believed. Such an exceptional result is attributed to a decreased thermodynamic transformation barrier height (Δμb) associated with increased active population.

  7. Synthesis and Performance of LiMnO2 as Cathodes for Li-ion Batteries

    Institute of Scientific and Technical Information of China (English)

    ZHAO Shi-xi; LIU Han-xing; OUYANG Shi-xi; LI Qiang

    2003-01-01

    Two structure types of LiMnO2 were synthesized by sol-gel method and ion-exchange method respectively.The results indicate that orthorhombic phase LiMnO2 is more stable than layered LiMnO2,o-LiMnO2 can be synthesized directly by sol-gel methods followed by heat-treated in argon,but layered LiMnO2 was obtained only by indirect methods such as ion-exchange method.In this paper,we first synthesized layered NaMnO2 by the sol-gel method,and then obtained layered LiMnO2 by the ion-exchange method.The phase constitution,chemical composition,and images of the products were tested by XRD,AAS (atomic absorption spectroscopy) and SEM.The electrochemical performances of the two structural types of LiMnO2 are obviously different during the initial few cycles,but later they both have a good capacity-retaining ability.The capacity of layered structure LiMnO2 is higher than that of o-LiMnO2.

  8. On the {\\ss}- decay in the Li-8 and Li-9 atoms

    CERN Document Server

    Frolov, Alexei M

    2013-01-01

    The nuclear {\\ss}- decay from the ground and some excited states of the three-electron Li-8 and Li-9 atoms is considered. The final state probabilities for the arising Be+ ion are determined numerically with the use of highly accurate bound state wave functions of the Li atom and Be+ ion. The probability of electron ionization during the nuclear {\\ss}- decay of the Li atom is evaluated numerically. We also discuss a possibility to observe the double {\\ss}- decay by using the known values of the final state probabilities for the regular nuclear {\\ss}- decay.

  9. 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...

  10. 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...

  11. 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"

  12. LiYbCl4(THF4

    Directory of Open Access Journals (Sweden)

    Lukas Richtera

    2011-06-01

    Full Text Available The title compound, di-μ-chlorido-dichlorido-1κ2Cl-tetrakis(tetrahydrofuran-1κ2O,2κ2O-lithiumytterbium(III, [LiYbCl4(C4H8O4], was prepared by the reaction of YbCl3(THF3 with LiCl in THF (THF is tetrahydrofuran. The central motif of the structure is a Yb(μ-Cl2Li ring. The Yb atom is hexacoordinated to four Cl atoms and two THF molecules oriented in a trans fashion. The Li atom has a tetrahedral environment and is coordinated to two Cl atoms and two THF molecules. No intermolecular interactions other than van der Waals forces were observed. Two of the THF molecules are disordered over two positions.

  13. Barrier Li Quantum Dots in Magnetic Fields

    Institute of Scientific and Technical Information of China (English)

    LIUYi-Min; LIXiao-Zhu; YANWen-Hong; BAOCheng-Guang

    2003-01-01

    The methods for the few-body system are introduced to investigate the states of the barrier Li quantum dots (QDs) in an arbitrary strength of magnetic field. The configuration, which consists of a positive ion located on the z-axis at a distaneed from the two-dimensional QD plane (the x-y plane) and three electrons in the dot plane bound by the positive ion, is called a barrier Li center. The system, which consists of three electrons in the dot plane bound by the ion,is called a barrier Li QD. The dependence of energy of the state of the barrier Li QD on an external magnetic field B and the distance d is obtained. The angular momentum L of the ground states is found to jump not only with the variation orB but also with d.

  14. 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"

  15. Li'l Red Schoolhouse workshops

    Science.gov (United States)

    1993-01-01

    Education specialists at Stennis conduct staff development workshops for elementary and secondary teachers of math, science and technology and other subjects as well as specialized workshops conducted in the NASA Li'l Red Schoolhouse.

  16. 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...

  17. Specification For ST-5 Li Ion Battery

    Science.gov (United States)

    Castell, Karen D.; Day, John H. (Technical Monitor)

    2000-01-01

    This Specification defines the general requirements for rechargeable Space Flight batteries intended for use in the ST-5 program. The battery chemistry chosen for this mission is lithium ion (Li-Ion).

  18. 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 wit...

  19. Optical and scintillation properties of Ce3+ doped LiYF4 and LiLuF4 crystals

    NARCIS (Netherlands)

    Combes, CM; Dorenbos, P; vanEijk, CWE; Pedrini, C; DenHartog, HW; Gesland, JY; Rodnyi, PA

    1997-01-01

    Optical properties of LiYF4:Ce and LiLuF4:Ce were studied viz. optical absorption spectra and X-ray induced emission spectra. The scintillation characteristics of LiYF4:Ce and LiLuF4:Ce were investigated viz. gamma-ray induced pulse height spectra and decay time measurements. A model is presented to

  20. Unravelling Li-Ion Transport from Picoseconds to Seconds: Bulk versus Interfaces in an Argyrodite Li6PS5Cl-Li2S All-Solid-State Li-Ion Battery.

    Science.gov (United States)

    Yu, Chuang; Ganapathy, Swapna; de Klerk, Niek J J; Roslon, Irek; van Eck, Ernst R H; Kentgens, Arno P M; Wagemaker, Marnix

    2016-09-01

    One of the main challenges of all-solid-state Li-ion batteries is the restricted power density due to the poor Li-ion transport between the electrodes via the electrolyte. However, to establish what diffusional process is the bottleneck for Li-ion transport requires the ability to distinguish the various processes. The present work investigates the Li-ion diffusion in argyrodite Li6PS5Cl, a promising electrolyte based on its high Li-ion conductivity, using a combination of (7)Li NMR experiments and DFT based molecular dynamics simulations. This allows us to distinguish the local Li-ion mobility from the long-range Li-ion motional process, quantifying both and giving a coherent and consistent picture of the bulk diffusion in Li6PS5Cl. NMR exchange experiments are used to unambiguously characterize Li-ion transport over the solid electrolyte-electrode interface for the electrolyte-electrode combination Li6PS5Cl-Li2S, giving unprecedented and direct quantitative insight into the impact of the interface on Li-ion charge transport in all-solid-state batteries. The limited Li-ion transport over the Li6PS5Cl-Li2S interface, orders of magnitude smaller compared with that in the bulk Li6PS5Cl, appears to be the bottleneck for the performance of the Li6PS5Cl-Li2S battery, quantifying one of the major challenges toward improved performance of all-solid-state batteries.

  1. LiFi - Let There Be Light

    OpenAIRE

    Chauhan, Mihir; Kulai, Aditya

    2015-01-01

    The paper proclaims a summary of Li-Fi technology. It is an efficient data communication mechanism involving visible light as a medium of transmission. This monograph introduces the concept of Li-Fi and its working model. Furthermore, it discusses its benefits, shortcomings and examines ways to mitigate the drawbacks. Additionally, it analyzes its present applications and explores its future scope in the competitive wireless network market.

  2. Stan Z. Li: Rolling face recognition

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Among the galaxy of research and development organizations in northwest Beijing's Zhongguancun district, known as China's Silicon Valley, two are especially well-known to IT researchers: Microsoft Research Asia (MSRA), and, within a few blocks on the other side of the street, the CAS Institute of Automation (CASIA). While most people in Chinese scientific organizations strive to move to a large foreign counterpart, Dr. Stan Z. Li (LI Ziqing) moves against the stream.

  3. New Wedding Customs of the Li People

    Institute of Scientific and Technical Information of China (English)

    JENNIFER; LIM

    1998-01-01

    HISTORICALLY, Hainan Island has been the land of the Li people. It was only during the Western Han Dynasty (206 B.C.-A.D.25), when the centralizedgovernment established two prefectures here caned Zhuya and Dan’er, that the Han people began to come southward to this remote island. So when anthropologists study the history and local customs of Hainan, the earliest information concerns the development of the Li nationality. There is a museum which provides clues to this history, the

  4. Lithium diffusion in spinel Li4Ti5O12 and LiTi2O4 films detected with 8Liβ -NMR

    Science.gov (United States)

    Sugiyama, Jun; Umegaki, Izumi; Uyama, Takeshi; McFadden, Ryan M. L.; Shiraki, Susumu; Hitosugi, Taro; Salman, Zaher; Saadaoui, Hassan; Morris, Gerald D.; MacFarlane, W. Andrew; Kiefl, Robert F.

    2017-09-01

    Diffusion of Li+ in (111) oriented thin films of the spinels Li4Ti5O12 and LiTi2O4 has been studied with 8Liβ -detected NMR in the temperature range between 5 and 310 K. In Li4Ti5O12 , the spin-lattice relaxation rate (1 /T1 ) versus temperature shows a clear maximum around 100 K (=Tmax ) which we attribute to magnetic freezing of dilute Ti3 + local magnetic moments, consistent with the results of magnetization and muon spin relaxation (μ+SR ) measurements. The decrease in 1 /T1 with temperature above Tmax indicates that Li+ starts to diffuse with a thermal activation energy (Ea) of 0.11(1) eV. In LiTi2O4 , on the contrary, as temperature increases from 200 K, 1 /T1 increases monotonically up to 310 K. This suggests that Li also starts to diffuse above 200 K with Ea=0.16 (2 ) eV in LiTi2O4 . Comparison with conventional Li-NMR on Li4Ti5O12 implies that both β -NMR and μ+SR sense short-range Li motion, i.e., a jump diffusion of Li+ to the nearest neighboring sites.

  5. Ionic Debye Screening in Dense Liquid Plasmas Observed for Li+p,d Reactions with Liquid Li Target

    Institute of Scientific and Technical Information of China (English)

    J.Kasagi; H.Yonemura; Y.Toriyabe; A.Nakagawa; T.Sugawara; WANG Tie-shan

    2009-01-01

    Thick target yields of a particles emitted in the ~6Li(d,a)~4 He and ~7Li(p,a)~4 He reactions were measured for Li target in the solid and liquid phase.Observed reaction rates for the liquid Li are always larger than those for the solid.This suggests that the stopping power of hydrogen ion in the liquid Li metal might be smaller than in the solid.Using the empirically obtained stopping power for the liquid Li,we have deduced the screening potentials of the Li+p and Li+d reactions in both phases.The deduced screening potential for the liquid Li is about 500 eV larger than for the solid.This difference is attributed to the effect of liquefied Li~+ ions.It is concluded that the ionic screening is much stronger than the electronic screening in a low-temperature dense plasmas.

  6. 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.

  7. LiGa(OTf)(sub 4) as an Electrolyte Salt for Li-Ion Cells

    Science.gov (United States)

    Reddy, V. Prakash; Prakash, G. K. Syria; Hu, Jinbo; Yan, Ping; Smart, Marshall; Bugga, ratnakumar; Chin, Keith; Surampudi, Subarao

    2008-01-01

    Lithium tetrakis(trifluoromethane sulfo - nato)gallate [abbreviated "LiGa(OTf)4" (wherein "OTf" signifies trifluoro - methanesulfonate)] has been found to be promising as an electrolyte salt for incorporation into both liquid and polymer electrolytes in both rechargeable and non-rechargeable lithium-ion electrochemical cells. This and other ingredients have been investigated in continuing research oriented toward im proving the performances of rechargeable lithium-ion electrochemical cells, especially at low temperatures. This research at earlier stages, and the underlying physical and chemical principles, were reported in numerous previous NASA Tech Briefs articles. As described in more detail in those articles, lithiumion cells most commonly contain nonaqueous electrolyte solutions consisting of lithium hexafluorophosphate (LiPF6) dissolved in mixtures of cyclic and linear alkyl carbonates, including ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), and ethyl methyl carbonate (EMC). Although such LiPF6-based electrolyte solutions are generally highly ionically conductive and electrochemically stable, as needed for good cell performance, there is interest in identifying alternate lithium electrolyte salts that, relative to LiPF6, are more resilient at high temperature and are less expensive. Experiments have been performed on LiGa(OTf)4 as well as on several other candidate lithium salts in pursuit of this interest. As part of these experiments, LiGa(OTf)4 was synthesized by the reaction of Ga(OTf)3 with an equimolar portion of LiOTf in a solvent consisting of anhydrous acetonitrile. Evaporation of the solvent yielded LiGa(OTf)4 as a colorless crystalline solid. The LiGa(OTf)4 and the other salts were incorporated into solutions with PC and DMC. The resulting electrolyte solutions exhibited reasonably high ionic conductivities over a relatively wide temperature range down to 40 C (see figure). In cyclic

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

    OpenAIRE

    Chi Chen; Ziheng Lu; Francesco Ciucci

    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 c...

  9. Li-Ion Battery with LiFePO4 Cathode and Li4Ti5O12 Anode for Stationary Energy Storage

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Wei; Choi, Daiwon; Yang, Zhenguo

    2013-01-01

    i-ion batteries based on commercially available LiFePO4 cathode and Li4Ti5O12 anode were investigated for potential stationary energy storage applications. The full cell that operated at flat 1.85V demonstrated stable cycling for 200 cycles followed by a rapid fade. A significant improvement in cycling stability was achieved via Ketjen black coating of the cathode. A Li-ion full cell with Ketjen black modified LiFePO4 cathode and an unmodified Li4Ti5O12 anode exhibited negligible fade after more than 1200 cycles with a capacity of ~130mAh/g. The improved stability, along with its cost-effectiveness, environmentally benignity and safety, make the LiFePO4/ Li4Ti5O12 Li-ion battery a promising option of storing renewable energy.

  10. 回族儿童(7~12岁)生活习惯与体育技能获取途径的调查与分析%A Survey and Analysis of Children(7 - 12) of Hui Nationality's Living Habits and Access to Sports Skills

    Institute of Scientific and Technical Information of China (English)

    刘凌宇

    2012-01-01

    By means of investigation and questionnaire, Hui children's ( age 7 - 12) sports activities and cognition, living habits and access to sports were studied. A comprehensive analysis was also made of the influence of Hui nationality's peculiar habits and living environment on Hui children's living habits, sound growth and socializing. From the sociological perspective, the effect of socio - economy, culture, national conventions and environmental factors on children's socialization in the fonnation of Hui children's living habits and access to sports was analyzed. The inter - relationship and mutual promotion of Hui children's living habits and participation in sports was explored. Thus, in terms of learning, habit formation, acquisition of skills and social adaptation, the Hui children's education and growth was thoroughly examined.%运用走访调查和问卷调查等方法对回族7~12岁儿童的体育活动规律和体育认知程度、生活习惯和体育获取途径等内容进行研究,全面分析了回族儿童特有的民族习惯和生活环境等社会因素,对其生活习惯、健康成长和社会化过程的影响,并从社会学的角度分析了回族儿童生活习惯与体育获取途径中社会、经济、文化、民族习俗和环境因素对儿童社会化发展的影响,探讨回族儿童生活习惯与体育参与行为在社会实践中相互联系和相互促进的发展规律,从学习、习惯养成、技能获取和社会适应等方面全面审视了回族儿童的教育和成长过程.

  11. VDR基因多态性与宁夏回汉族白癜风患者的相关性研究%Investigation on association of VDR gene polymorphism with Hui and Han ethnic vitiligo patients in NingXia

    Institute of Scientific and Technical Information of China (English)

    郭睿; 郝雁杰; 汪京峡; 刘霞; 杨文斌

    2012-01-01

    目的 研究VDR基因FokI、BsmI位点与宁夏地区回汉族白癜风患者遗传易感性的关系.方法 应用PCR-RFLP技术进行了宁夏回汉族白癜风患者的VDR基因FokI、BsmI位点频率分布的检测.结果 FokI位点的基因型和等位基因的分布频率在宁夏回汉族白癜风患者和对照组中均无统计学意义.BsmI位点Bb基因型的频率分布在宁夏回族白癜风组和回族健康对照组有显著性差异(P为0.033) ;而且Bb基因型的频率在宁夏白癜风患者组和对照组组中也有统计学意义(P值为0.036).结论 VDR 基因BsmI (rs:1544410) 位点可能是宁夏地区尤其是回族人群中白癜风发病的保护因子.%Objective To evaluate the assoriation of the polymorphism of VDR gene FokI and BsmI sites and the gr netir susrrptibility of Hui and Han cthnic vitiligo patiants in XingXia. Methods Polymarase chain relation scquancc rc strirtion fragment length polymorphism (PCR RFLP ) was used to analyzc the distribution of allles and genotypes of the Fold .mel BsmT sites of the VDR gene among Hui and Han cthnir vitiligo patients in Xingxin. Results There was no smtistirally signifirant rliffercncc in the frequencic.s of VDR FokI genotypes and alleles between the vitiligo patients and healthy controls in Han and Hui nationality (P>0.05). There was statistically signifirant diffcrenre in the frequcncies of Bb genotypes of VDR BsmT site between Hui ethnir vitiligo paticnts mel Hui ethnir healthy rontrols in XingXia (P - 0. 033) , and also between vitiligo patients mel healthy rontrols in XingXia. (P -0.026). Conclusion The Bsm I ( rs: 1544410) site of the VDR gene was likely the proteet factor in the pathogrncsis of vitiligo among XingXia population, especially Hui ethnir.

  12. Gene Polymorphism in Promoter of Interleukin- 6 between Hui and Han Ethnic Group of Ningxia%宁夏回、汉族群体IL-6启动子区基因多态性研究

    Institute of Scientific and Technical Information of China (English)

    詹福寿; 李霞; 万艳; 张静; 霍正浩

    2011-01-01

    目的 探讨白细胞介素6(interleukin6,IL-6)基因多态性在宁夏回、汉族人群中的分布特征.方法 应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法,对210例回族和308例汉族人群白细胞介素6基因启动子区三个多态性位点(-572G/C、-597G/A、-174G/C)进行检测.结果 宁夏回族群体IL-6基因三个SNP各基因型频率及等位基因频率分别为,-572G/C(CC:55.71%;CG:34.76%;GG:9.52%;C:73.10%;G:26.90%);-597G/A(GG:94.29%;GA:5.71%;AA:0%;G:97.14%;A:2.86);-174G/C(GG:96.67%;GC:3.23%;CC:0%;G:98.33%;C:1.67%).宁夏汉族群体IL-6基因三个SNP各基因型频率及等位基因频率分别为,-572(CC:52.92%;CG:35.71%;GG:11.36%;C:70.78%;G:29.22%);-597(GG:92.86%;GA:7.14%;AA:0%;G:96.13%;A:3.57);-174(GG:97.08%;GC:2.92%;CC:0%;G:98.54%;C:1.46%).两组间差异均无统计学意义(P>0.05);按性别分组,三个SNP位点的基因型频率及等位基因频率差异亦无统计学意义(P>0.05).结论 IL-6基因-572、-597、-174三个多态性位点在宁夏回、汉族人群及不同性别间差异无统计学意义.%Objective To explore the frequencies of allele and genotype distribution of interleukin6 ( IL - 6) gene promoter- 572G/C, -597G/A and - 174G/C polymorphisms in the Hui and Han people of Ningxia Province and to analyze the distributions of IL -6 polymorphism among different places and ethnic groups.Methods The gene IL -6 -572G/C, -597G/A and - 174G/C polymorphisms was examined by the polymerase chain reaction- restriction fragment length polymorphism (PCR- RFLP) methods in 210 hui and 308 han healthy adults. Results IL - 6 - 572, - 597, - 174 genotype frequencies were - 572 ( CC :55.71%;CG:34.76%; GG: 9.52%; C: 73. 10%; G: 26.90% ), - 597 ( GG: 94.29%; GA: 5.71%; AA: 0%; G:97. 14%; A :2.86) and - 174 ( GG: 96.67 %; GC: 3.23 %; CC: 0%; G: 98.33 %; C: 1.67 % ) in Ningxia Hui ethnic group, respectively. IL - 6 - 572, - 597, - 174 genotypes frequencies were - 572 ( CC :52.92

  13. 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.

  14. Kinetic behavior of LiFeMgPO 4 cathode material for Li-ion batteries

    Science.gov (United States)

    Hong, Jian; Wang, Chunsheng; Kasavajjula, Uday

    LiFe 0.9Mg 0.1PO 4 material was prepared by mechanical milling method, followed by heat treatment. The equilibrium potential-composition isotherm of LiFe 0.9Mg 0.1PO 4 and charge-discharge kinetics of LiFe 0.9Mg 0.1PO 4 were measured using galvanostatic intermittent titration technique (GITT), potential-step chronoamperometry (PSCA), and electrochemical impedance spectroscopy (EIS). The rate performance of the cathode is controlled by the charge-transfer kinetics, electronic conductivity, Li-ion diffusion capability, and phase transformation rate. Since LiFe 0.9Mg 0.1PO 4 has a fast charge-transfer reaction and high electronic and ionic diffusivity, the phase transformation between LiFe 0.9Mg 0.1PO 4 and Li 0.1Fe 0.9Mg 0.1PO 4 begins to play a more important role in the charge-discharge process, as is evident by an inductive loop induced by the phase transformation in the low frequency region of EIS. The phase purity and morphology of LiFe 0.9Mg 0.1PO 4 were also observed using X-ray diffraction (XRD) and scanning electron microscopy (SEM).

  15. Hyperfine structure in photoassociative spectra of 6Li2 and 7Li2

    NARCIS (Netherlands)

    Abraham, E.R.I.; McAlexander, W.I.; Stoof, H.T.C.; Hulet, R.G.

    1996-01-01

    We present spectra of hyperfine resolved vibrational levels of the A1Σu+and 1 3Σg+ states of 6Li2 and 7Li2 obtained via photoassociation of colliding ultracold atoms in a magneto-optical trap. A simple first-order perturbation theory analysis accurately accounts for the frequency splittings and rela

  16. LiSK - A C++ Library for Evaluating Classical Polylogarithms and $\\text{Li}_{22}$

    CERN Document Server

    Kirchner, Sebastian

    2016-01-01

    I present a lightweight C++ library for the evaluation of classical polylogarithms Li_n and the special function Li_{22} for arbitrary complex arguments. The evaluation is possible in arbitrary precision arithmetic and features also an explicit double precision implementation for a much faster numerical evaluation. The implementation is based on arXiv:1601.02649.

  17. A design optimization methodology for Li+ batteries

    Science.gov (United States)

    Golmon, Stephanie; Maute, Kurt; Dunn, Martin L.

    2014-05-01

    Design optimization for functionally graded battery electrodes is shown to improve the usable energy capacity of Li batteries predicted by computational simulations and numerically optimizing the electrode porosities and particle radii. A multi-scale battery model which accounts for nonlinear transient transport processes, electrochemical reactions, and mechanical deformations is used to predict the usable energy storage capacity of the battery over a range of discharge rates. A multi-objective formulation of the design problem is introduced to maximize the usable capacity over a range of discharge rates while limiting the mechanical stresses. The optimization problem is solved via a gradient based optimization. A LiMn2O4 cathode is simulated with a PEO-LiCF3SO3 electrolyte and both a Li Foil (half cell) and LiC6 anode. Studies were performed on both half and full cell configurations resulting in distinctly different optimal electrode designs. The numerical results show that the highest rate discharge drives the simulations and the optimal designs are dominated by Li+ transport rates. The results also suggest that spatially varying electrode porosities and active particle sizes provides an efficient approach to improve the power-to-energy density of Li+ batteries. For the half cell configuration, the optimal design improves the discharge capacity by 29% while for the full cell the discharge capacity was improved 61% relative to an initial design with a uniform electrode structure. Most of the improvement in capacity was due to the spatially varying porosity, with up to 5% of the gains attributed to the particle radii design variables.

  18. Coulomb excitation of {sup 8}Li

    Energy Technology Data Exchange (ETDEWEB)

    Assuncao, Marlete; Britos, Tatiane Nassar [Universidade Federal de Sao Paulo (UNIFESP), SP (Brazil). Dept. de Ciencias Exatas e da Terra; Descouvemont, Pierre [Universite Libre de Bruxelles (ULB), Brussels (Belgium). Physique Nucleaire Theorique et Physique Mathematique; Lepine-Szily, Alinka; Lichtenthaler Filho, Rubens; Barioni, Adriana; Silva, Diego Medeiros da; Pereira, Dirceu; Mendes Junior, Djalma Rosa; Pires, Kelly Cristina Cezaretto; Gasques, Leandro Romero; Morais, Maria Carmen; Added, Nemitala; Neto Faria, Pedro; Rec, Rafael [Universidade de Sao Paulo (IF/USP), SP (Brazil). Inst. de Fisica. Dept. de Fisica Nuclear

    2012-07-01

    Full text: This work shows the Coulomb Excitation of {sup 8}Li on targets that have effectively behavior of Rutherford in angles and energies of interest for determining the value of the B(E2) electromagnetic transition. Theoretical aspects involved in this type of measure, known as COULEX [1], and some results in the literature [2-3] will be presented. Some problems with the targets and measurement system while performing an experiment on Coulomb Excitation of {sup 8}Li will be discussed: the energy resolution, background, possible contributions of the primary beam and also the excited states of the target near the region of elastic and inelastic peaks. They will be illustrated by measurements of the Coulomb Excitation of {sup 8}Li on targets of {sup 197}Au and {sup 208}Pb using the system RIBRAS(Brazilian Radioactive Ion Beam). In this case, the {sup 8}Li beam(T{sub 1/2} = 838 ms)is produced by {sup 9}Be({sup 7}Li;{sup 8} Li){sup 8}Be reaction from RIBRAS system which is installed at Instituto de Fisica of the Universidade de Sao Paulo. The primary {sup 7L}i beam is provided by Pelletron Accelerator. [1] K. Alder and A. Winther, Electromagnetic Excitation, North-Holland, New York, 1975; [2] P. Descouvemont and D. Baye, Phys. Letts. B 292, 235-238, 1992; [3] J. A. Brown, F. D. Becchetti, J. W. Jaenecke, K, Ashktorab, and D. A. Roberts, J. J. Kolata, R. J. Smith, and K. Lamkin, R. E. Warner, Phys. Rev. Letts., 66, 19, 1991; [4] R. J. Smith, J. J Kolata, K. Lamkin and A. Morsard, F. D. Becchetti, J. A. Brown, W. Z. Liu, J. W. Jaenecke, and D. A. Roberts, R. E. Warner, Phys. Rev. C, 43, 5, 1991. (author)

  19. First Principles Study of Al-Li Intermetallic Compounds

    Science.gov (United States)

    Yu, Hai-li; Duan, Xiao-hui; Ma, Yong-jun; Zeng, Min

    2012-12-01

    The structural properties, heats of formation, elastic properties, and electronic structures of four compositions of binary Al-Li intermetallics, Al3Li, AlLi, Al2Li3, and Al4Li9, are analyzed in detail by using density functional theory. The calculated formation heats indicate a strong chemical interaction between Al and Li for all the Al-Li intermetallics. In particular, in the Li-rich Al-Li compounds, the thermodynamic stability of intermetallics linearly decreases with increasing concentration of Li. According to the computational single crystal elastic constants, all the four Al-Li intermetallic compounds considered here are mechanically stable. The polycrystalline elastic modulus and Poisson's ratio have been deduced by using Voigt, Reuss, and Hill approximations, and the calculated ratios of bulk modulus to shear modulus indicate that the four compositions of binary Al-Li intermetallics are brittle materials. With the increase of Li concentration, the bulk modulus of Al-Li intermetallics decreases in a linear manner.

  20. Absolute level-resolved reactive and inelastic rate constants in Li+Li2*

    Science.gov (United States)

    Coppage, Steven; Matei, Paula; Stewart, Brian

    2008-06-01

    We have used nuclear parity-changing collisions to obtain absolute level-to-level rate constants for reactive scattering in a triatomic system with identical nuclei. We have determined rate constants for the system 7Li2*(A 1Σu+)(vi=2,ji=19)+7Li-->7Li+7Li2*(A 1Σu+)(vf,jf), from laser-induced fluorescence spectra of lithium vapor in a heat pipe oven. Parity-preserving collisions yielded measurements of absolute rotationally and vibrationally inelastic rate constants as well. We compare the reactive rate constants with statistical prior distributions and the inelastic results with previously measured results on the Ne+7Li2* system.

  1. Electrochemical performance of LiFePO4 cathode material for Li-ion battery

    Institute of Scientific and Technical Information of China (English)

    LI Shuzhong; LI Chao; FAN Yanliang; XU Jiaqiang; WANG Tao; YANG Shuting

    2006-01-01

    In the search for improved materials for rechargeable lithium batteries, LiFePO4 offers interesting possibilities because of its low raw materials cost, environmental friendliness and safety. The main drawback with using the material is its poor electronic conductivity and this limitation has to be overcome. Here Al-doped LiFePO4/C composite cathode materials were prepared by a polymer-network synthesis technique. Testing of X-ray diffraction, charge-discharge, and cyclic voltammetry were carried out for its performance. Results show that Al-doped LiFePO4/C composite cathode materials have a high initial capacity, good cycle stability and excellent low temperature performance. The electrical conductivity of LiFePO4 material can be obviously improved by doping Al. The better electrochemical performances of Al-doped LiFePO4/C composite cathode materials have a connection with its conductivity.

  2. Characteristic of Absorption Heat Transfer using LiBr+LiI Solution

    Science.gov (United States)

    Tsujimori, Atsushi; Ozaki, Eiichi; Nakao, Kazushige

    LiBr-H20 absorption chiller is widely used in Japan, and many research have been made for absorption characteristic in terms of enhancing heat transfer. Another study have been performed for widening working range with higher crystallization limits, and it was reported that adding LiI salt to LiBr-H20 working fluid provide about 5 [mass%] higher crystallization limit under the condition of absorption pressure range. It is necessary to reveal absorption heat transfer performance to utilize this working fluid pair for absorption chiller. In this study absorption heat transfer characteristic was investigated for horizontal and vertical tube. As a result, it was found that heat transfer coefficient increased as mass flow rate of solution increased and mass concentration of solution decrease and that these characteristic were almost the same as LiBr solution, though this solution gave slightly less heat transfer coefficient than LiBr solution.

  3. Rate-dependent morphology of Li2O2 growth in Li-O2 batteries

    CERN Document Server

    Horstmann, B; Mitchell, R; Bessler, W G; Shao-Horn, Y; Bazant, M Z

    2013-01-01

    Compact solid discharge products enable energy storage devices with high gravimetric and volumetric energy densities, but solid deposits on active surfaces can disturb charge transport and induce mechanical stress. In this Letter we develop a nanoscale continuum model for the growth of Li2O2 crystals in lithium-oxygen batteries with organic electrolytes, based on a theory of electrochemical non-equilibrium thermodynamics originally applied to Li-ion batteries. As in the case of lithium insertion in phase-separating LiFePO4 nanoparticles, the theory predicts a transition from complex to uniform morphologies of Li2O2 with increasing current. Discrete particle growth at low discharge rates becomes suppressed at high rates, resulting in a film of electronically insulating Li2O2 that limits cell performance. We predict that the transition between these surface growth modes occurs at current densities close to the exchange current density of the cathode reaction, consistent with experimental observations.

  4. Effective of Hui Medicine AikangFang Synergism Chemotherapy to Lewis Lung Carcinoma Cell Ultrastructure%回药爱康方协同化疗对小鼠Lewis肺癌细胞超微结构的影响

    Institute of Scientific and Technical Information of China (English)

    马治国; 马科; 周丽萍; 边静; 周慧

    2012-01-01

    Objective Observed effective of Hui medicine AikangFang synergism chemotherapy to mice Lewis lung cancer cell changes by electron microscope. Methods We uesed to 55 C57 mice which were inoculated Lewis lung carcinoma cells after 24 h were randomly divided into model group, chemotherapy group, Hui medicine AikangFang; AikangFang low - dose and high - dose chemotherapy group. After 14d treatment, we observed the general situation of mice, completely stripping tumor tissue that the tumor, lung cells dissection, e-lectron microscope drawn, fabrication, observed in each group changes in the structure of tumor cells. Results Compared with model group, the rest of group mice general situation were good, high - dose plus chemotherapy group was best, the mice tumor weight compared with model group were statistically significant ( P < 0.01 ). Treatment groups of lung cancer cells have different degrees of morpho logical damage, high - dose chemotherapy group the most obvious cell damage, a large number of organelles necrosis, chromatin high degree of concentration. Conclusion Hui medicine AikangFang affects cancer cells , the high - dose chemotherapy can be effectively coordinated damage tumor cells.%目的 观察回药爱康方协同化疗对小鼠Lewis肺癌细胞超微结构的影响.方法 把55只C57小鼠接种Lewis肺癌细胞24h后随机分为模型组、化疗组、爱康方组、爱康方低剂量加化疗组、爱康方高剂量加化疗组.治疗14d后,观察小鼠一般情况,完整剥离肿瘤组织称瘤重,电镜取材、制作,观察各组肿瘤细胞结构的改变.结果 与模型组比较,其余各组小鼠一般情况较好,高剂量加化疗组最佳,小鼠瘤重较模型组轻,差异均有统计学意义(P<0.01);与模型组比较,其余各组的肺癌细胞形态都有不同程度的损伤,高剂量加化疗组细胞破坏最明显,出现大量细胞器坏死,染色质高度聚集.结论 回药爱康方高剂量协同化疗可有效损伤肿瘤细胞.

  5. The Comparative Study on Self-consciousness of Han,Hui and Uighur School Children%汉、回、维吾尔族学龄儿童自我意识的比较研究

    Institute of Scientific and Technical Information of China (English)

    段宝军; 李玉保; 柴樱珊

    2014-01-01

    为了探讨汉、回、维吾尔族学龄儿童在自我意识及其各因子上的差异性特点,采用Piers-Harris儿童自我意识量表对808名汉、回、维吾尔族学龄儿童进行施测。结果表明:在自我意识总分及行为、智力与学校情况、躯体外貌与属性、合群因子上女生显著高于男生;维吾尔族学龄儿童在自我意识总分及行为、智力与学校情况、躯体外貌与属性、焦虑、幸福与满足因子上显著高于回族学龄儿童,在自我意识总分及智力与学校情况、躯体外貌与属性因子上显著高于汉族学龄儿童;五年级和六年级学龄儿童自我意识总分及智力与学校情况、躯体外貌与属性、合群、幸福与满足因子上显著高于四年级儿童,四年级学龄儿童在合群因子上显著低于六年级儿童,在幸福与满足因子上显著低于五年级儿童。%To explore the different characteristics of self-consciousness and each factor score in Han,Hui and Uyghur school chil-dren,808 Han,Hui and Uyghur school children were tested by the Piers-Harris Children's Self-consciousness Scale. The results show that(1)The self-consciousness total score and behavior,intelligence and school situation,body appearance and attributes,and the gregariousness factor of the female school children were significantly higher than those of the male school children.( 2 )The Uyghur school children's self-consciousness total score and behavior,intelligence and school situation,body appearance and attributes,anxie-ty,happiness and satisfaction factors were significantly higher than those of Hui school children;their self-consciousness total score, intelligence and school situation,body appearance and attributes were significantly higher than those of Han school children.(3)The grade 5 and grade 6 school children's self-consciousness total score,intelligence and school situation,body appearance and attributes, the gregariousness,happiness and

  6. 宁夏中部干旱带土地利用变化及驱动力分析%Analysis on Land Use Change and Its Driving Forces in Arid Area of Central Ningxia Hui Autonomous Region

    Institute of Scientific and Technical Information of China (English)

    贾科利; 张俊华

    2011-01-01

    By using data derived from the 1978 MSS image and 1987,1996,2007 Landsat TM/ETM images and with the help of GIS,the land use change in arid area of central Ningxia Hui Autonomous Region was analyzed.At the same time,the driving forces of the land use change was identified by making use of the correlation analysis and principal component.The results showed that the overall trend of land use change in arid area of central Ningxia Hui Autonomous Region was in an enlargement of the areas of cultivated land,urban land,whereas sandy land area decreased 281 682 hm2,an average annual increase rate grassland area was 0.17%,and area of forest land reduced nearly 30 000 hm2 over 30 years.The land use information entropy indicating that the degree of disorder for land use system increased,and the structure of land use became complexity and diversity.It was considered that population,economic,regional socio-economic development degree,industrial structure,agricultural production,socio-input,government policy,and natural factors are the main driving forces inducing land use change in arid area of central Ningxia Hui Autonomous Region.More importantly,the principal component analysis showed that the impacts of human activity combining with some other conditions were the leading factors that induced dynamic change of the 1and use.%利用1978年MSS、1987年、1996年及2007年TM遥感影像,借助遥感和GIS技术及相关分析、主成分分析方法,对宁夏中部干旱带1978-2007年土地利用变化及驱动力进行了分析。结果表明:1978-2007年耕地、城镇用地面积快速增加,沙地面积减少了281 682hm2。草地以年均0.17%的速率不断增加,林地面积减少了近3万hm2。土地利用系统无序化程度增加,土地利用利用结构复杂性和多样性增大。人口、经济、产业结构、农业生产、投入、富裕程度、政策和自然因素是驱动研究区土地利用变化的主要因素,其中,人口作为社会经济活

  7. Suppressing The Growth Of Dendrites In Secondary Li Cells

    Science.gov (United States)

    Davies, Evan D.; Perrone, David E.; Shen, David H.

    1996-01-01

    Proposed technique for suppressing growth of lithium dendrites in rechargeable lithium electrochemical power cells involves periodic interruption of steady charging current with short, high-current discharge pulses. Technique applicable to lithium cells of several different types, including Li/TiS(2), Li/NbSe(3), Li/CoO(2), Li/MoS(2), Li/Vo(x), and Li/MnO(2). Cells candidates for use in spacecraft, military, communications, automotive, and other applications in which high-energy-density rechargeable batteries needed.

  8. Li-FSI Impurity Impact Study: Final CRADA Report

    Energy Technology Data Exchange (ETDEWEB)

    Pupek, Krzysztof [Argonne National Lab. (ANL), Argonne, IL (United States); Dzwiniel, Trevor [Argonne National Lab. (ANL), Argonne, IL (United States); Krumdick, Gregory [Argonne National Lab. (ANL), Argonne, IL (United States)

    2017-01-01

    There is growing interest in lithium bis(fluorosulfonyl)imide (LiFSI ) as an alternative to LiPF6 and as an additive to electrolytes used in lithium-ion cells. LiFSI has attracted attention because it is reported to have higher ionic conductivity, better high temperature stability, and enhanced stability toward hydrolysis, Also, LiFSI additive to electrolytes can bring benefits of improved storage properties and reduced gas evolution in the cells. Different levels of different electrochemically active impurities could affect the performance of LiFSI as an electrolyte salt for Li-ion batteries, generating inconsistent and conflicting interpretations of the experimental data.

  9. 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.

  10. 6^Li in the atmosphere of GJ 117

    CERN Document Server

    Christian, D J; Jevremovic, D; Hauschildt, P H; Baron, E

    2005-01-01

    We present high resolution VLT UVES observations of the active K dwarf GJ 117. 6^Li enhancement has been shown for energetic solar events, one chromospherically active binary, and several dwarf halo stars. Our analysis reveals the detection of 6^Li on this source with 6^Li/7^Li = 0.030+/-0.010. We found no significant contribution from other lines, including Ti I, in the Li profile of GJ 117 and a template star of similar spectral type and metallicity. We discuss the possibility for 6^Li production by spallation and find it to be consistent with the activity levels of the object.

  11. 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.

  12. Enhanced high temperature performance of LiMn2O4 coated with Li3BO3 solid electrolyte

    Indian Academy of Sciences (India)

    Liu Jinlian; Wu Xianming; Chen Shang; Liu Jianben; He Zeqiang

    2013-08-01

    Cathode material, LiMn2O4, was synthesized by solid-state reaction followed by surface coating of Li3BO3 solid electrolyte. Structure and electrochemical performance of the prepared powders were characterized by X-ray diffraction, scanning electron microscopy, cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge–discharge techniques, respectively. Results show that Li3BO3 coated LiMn2O4 has similar X-ray diffraction patterns as LiMn2O4. The discharge specific capacities of LiMn2O4 coated with 0.1, 0.3 and 0.6 wt% Li3BO3 are 123.3, 118.2 and 110 mAh/g, respectively, which is slightly smaller than that of 124.4 mAh/g 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.

  13. 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.

  14. The Analysis of Hui Old Brand Make-up Based on Genetic Perspective%基于“品牌基因”视角的回族老字号品牌构成研究

    Institute of Scientific and Technical Information of China (English)

    杨保军; 黄志斌

    2013-01-01

    品牌基因是附着在产品上的、在品牌经营中具有显著的文化表征的具有遗传特征的知识体系,携带有包含产品基因和文化基因的多种遗传信息,是决定品牌进化的基本依据。品牌通过产品基因表现为产品功能和产品结构,并表达自己的个性和价值理念,通过文化基因表现为品牌文化的独特性,最终给消费者带来品牌归属感。回族老字号是中华老字号中具有鲜明民族、区域特色的品牌,基于基因理论来分析回族老字号的品牌基因的构成,为进一步开发相应的结构化量表提供了理论依据,对于国内相关企业的成长具有借鉴意义。%Brand gene is a kind of knowledge system attached to the product and it has significant cultural and hereditary characteristics in brand management .Brand gene contains a variety of genetic information such as product gene and culture gene , which is the basis of brand evolution .Brand shows product func-tion and product structure through the product gene , and expresses its personality and value concept .The brand also shows specificity of brand culture by culture gene and finally brings consumer a brand sense of belonging .The Hui old brand has distinctive ethnic and regional characteristics among chinese old brands.This article analyze the structure of the Hui old brand based on the gene structure .And it pro-vides a theory basis to further development of exploiting relevant structural scale , which has reference sig-nificance to the growth of domestic relevant enterprise .

  15. 一个回族家系亨廷顿舞蹈病的临床特征与基因突变分析%Clinical characteristics and genetic mutation analysis in a Hui family with Huntington disease

    Institute of Scientific and Technical Information of China (English)

    陈静; 雷晶; 张小宁

    2011-01-01

    目的 分析1个回族家系亨廷顿舞蹈病的临床表现与基因突变特点.方法 应用降落聚合酶链反应( touchdown PCR)、分子克隆及基因测序等技术对1个临床诊断为亨廷顿舞蹈病的回族家系成员进行IT15基因检测.结果 先证者首发症状为双下肢疼痛,逐渐发展为舞蹈样不自主运动、情绪异常、记忆力、智力减弱等,其染色体4p16.3的IT15基因异常片段CAG重复次数为46次;其子为症状前患者CAG重复次数为44次.结论 该家系存在母系传递过程中IT15基因上CAG重复次数减少的现象,并发现1例CAA插入.%Objective To perform clinical analysis and gene diagnosis of Huntington disease (HD) in a Hui pedigree from Xinjiang.Methods The IT15 gene mutation of the Hui family was analyzed by touchdown PCR,molecular cloning and gene sequencing.Results The proband carried 46 CAG repeats.Pain in bilateral lower limb was the first symptom,followed by symptoms such as dance-like involuntary movements,mood disorders,impaired memory and intelligence.Asymptomatic son of the proband carried 44 CAG repeats.Conclusion This family showed reduced CAG trinucleotide repeats of IT15 gene during maternal transmission.A CAA variation is also detected within the CAG repeat region.

  16. Pharmacokinetics of doxapram injection in Chinese Han, Mongolian, Korean, Uigur and Hui healthy subjects%多沙普仑在中国五民族健康受试者的药代动力学

    Institute of Scientific and Technical Information of China (English)

    郭涛; 杨长青; 赵龙山; 程佳; 夏东亚; 曾平; 肖勇; 赵东祥; 李强; 白音

    2014-01-01

    Aim To investigate and compare the phar-macokinetics of doxapram injection in healthy subjects of different Chinese nationalities including Han, Mon-golian, Korean, Hui and Uigur, and the influence of gender,in order to provide instruction and help for the usage of doxapram for both clinic and remedy of battle wound. Methods An HPLC-UV method was used to determine the plasma concentration of doxapram. Fifty healthy subjects ( five males and five females of each nationality) were recruited for the study. A single dose of 50 mg doxapram was administered intravenously to the healthy subjects, and blood samples were collected at various predetermined time points. The pharmacoki-netic parameters were calculated by DAS software and were compared by SPSS 13. 0 software, in order to as-sess the influence of nationality or gender on pharmaco-kinetics of doxapram. Results The results indicated that the pharmacokinetic profile of doxapram in vivo could be described as two-compartment model. The main pharmacokinetic parameters for Han, Mongolian, Korean, Hui and Uygur were as follows: Cl ( 0. 25 ± 0. 11 ) , ( 0. 33 ± 0. 11 ) , ( 0. 27 ± 0. 07 ) , ( 0. 26 ± 0. 06) and (0. 39 ± 0. 25) L·h-1 ·kg-1 , while Cmax (1. 55 ± 0. 52 ) , ( 1. 02 ± 0. 30 ) , ( 1. 31 ± 0. 47 ) , (1. 48 ± 0. 46 ) and ( 0. 99 ± 0. 35 ) mg · L-1 . The AUC0-12. 5 , AUC0-∞ and Cmax of Chinese Han were sig-nificantly higher than those of Uigur and Mongolian ( P0. 05 ) . There were statistically significant differences in Vc , Vd and CL between young males and females ( P 0.05)。男性与女性的Vc、Vd 和CL差异有统计学意义( P <0.05)。结论在战、创伤和平时临床应用本品时,应该对民族因素给予足够重视。

  17. Formation and reduction behaviors of zirconium oxide compounds in LiCl-Li2O melt at 923 K

    Science.gov (United States)

    Sakamura, Yoshiharu; Iizuka, Masatoshi; Kitawaki, Shinichi; Nakayoshi, Akira; Kofuji, Hirohide

    2015-11-01

    The reduction behaviors of ZrO2, Li2ZrO3 and (U,Pu,Zr)O2 in a LiCl-Li2O salt bath at 923 K were investigated. This study was conducted as part of a feasibility study on the pyrochemical treatment of damaged fuel debris generated by severe accidents at light water reactors. It was demonstrated in electrolytic reduction tests that the uranium in synthetic corium specimens of (U,Pu,Zr)O2 with various ZrO2 contents could be reduced to the metallic form and that part of the zirconium was converted to Li2ZrO3. Zirconium metal and Li2ZrO3 were obtained by the reduction of ZrO2. The reduction of Li2ZrO3 did not proceed even in LiCl containing no Li2O. Moreover, the stable chemical forms of the ZrO2-Li2O complex oxide were investigated as a function of the Li2O concentration in LiCl. ZrO2 was converted to Li2ZrO3 at a Li2O concentration of 0.018 wt%. As the Li2O concentration was increased, Li2ZrO3 was converted to Li6Zr2O7 and then to Li8ZrO6. It is suggested that the removal of Li2ZrO3 from the reduction product is a key point in the pyrochemical treatment of corium.

  18. Corrosion studies of LiH thin films

    Science.gov (United States)

    Tonks, J. P.; King, M. O.; Galloway, E. C.; Watts, J. F.

    2017-02-01

    Thin films of LiH and its corrosion products were studied using temperature programmed decomposition (TPD), x-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). Thin films were grown on Ni(100) in an ultra high vacuum system using an electron beam evaporator. Characteristic Li KLL AES peaks were identified for Li, LiH, Li2O and LiOH which facilitated identification of thin film composition. XPS of the O 1s region revealed three distinct chemical shifts which were attributed to Li2O, LiOH and chemisorbed H2O. We show that exposing LiH to very low H2O partial pressures results in formation of LiOH/Li2O domains on LiH. We also show that these XPS peaks can be linked to reaction mechanisms in the TPD profiles. TPD traces have been explicitly modelled to determine the activation energies of the reactions and compare favourably with previous measurements on bulk LiH samples.

  19. Heat capacities of polycrystalline {sup n}LiH and {sup n}LiD by differential scanning calorimetric method

    Energy Technology Data Exchange (ETDEWEB)

    Jat, Ram Avtar [Product Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 (India); Parida, S.C., E-mail: sureshp@barc.gov.i [Product Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 (India); Krishnan, K. [Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 (India); Anand, N.S.; Sawant, S.G.; Agarwal, Renu; Singh, Ziley [Product Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 (India); Aggarwal, S.K. [Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 (India); Venugopal, V. [RC and I Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 (India)

    2010-08-27

    The heat capacities of polycrystalline {sup n}LiH and {sup n}LiD were measured by differential scanning calorimeter in the temperature range from 125 to 800 K. The smoothed values of heat capacities were used to calculate various thermodynamic functions for {sup n}LiH and {sup n}LiD from 0 to 800 K. Isotopic effect on heat capacity of {sup n}LiH and {sup n}LiD is predominant at higher temperatures (>80 K) whereas below 80 K the isotopic effect is negligible.

  20. Photoluminescence and Optically Stimulated Luminescence Studies of LiAlO2 and LiGaO2 Crystals

    Science.gov (United States)

    2015-03-26

    PHOTOLUMINESCENCE AND OPTICALLY STIMULATED LUMINESCENCE STUDIES OF LiAlO2 AND LiGaO2 CRYSTALS THESIS Ian P. Ferguson, Second Lieutenant, USAF AFIT...STIMULATED LUMINESCENCE STUDIES OF LiAlO2 AND LiGaO2 CRYSTALS THESIS Presented to the Faculty Department of Engineering Physics Graduate School of...FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED. AFIT-ENP-MS-15-M-106 PHOTOLUMINESCENCE AND OPTICALLY STIMULATED LUMINESCENCE STUDIES OF LiAlO2 AND LiGaO2

  1. 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.

  2. Lattice dynamics in Bosonic 7 Li

    Science.gov (United States)

    Chen, Huiyao Y.; Jung, Minwoo; Rabinowitz, Jacob; Madjarov, Ivaylo S.; Cheung, Hil F. H.; Patil, Yogesh Sharad; Vengalattore, Mukund

    2016-05-01

    The light mass and strong spin-dependent interactions in 7 Li make it an attractive candidate to study Bosonic quantum magnetism and lattice dynamics in regimes where rapid dynamics is favored, e.g. percolative transport and entropy segregation. Such studies require large ensembles of quantum degenerate 7 Li atoms which has proved to be a technical challenge. We describe our ongoing efforts to overcome this challenge using Raman sideband cooling (RSC). In addition to enabling the rapid production of large degenerate gases, RSC is also a very powerful means of local control of lattice gas dynamics. Extending this to a spinful 7 Li Bose gas will also enable studies of transport and defect dynamics in F=1 lattice gases. This work is supported by the ARO MURI on non-equilibrium dynamics.

  3. Hydrogen diffusion in Al-Li alloys

    Science.gov (United States)

    Anyalebechi, P. N.

    1990-08-01

    The diffusion coefficients of hydrogen in binary Al-Li alloys containing 1,2, and 3 wt pct Li have been determined from desorption curves of samples saturated with hydrogen at 473 to 873 K. Within this temperature range, the diffusivity of hydrogen in the binary Al-Li alloys investigated has an Arrhenius-type temperature dependence and follows the equation of the general form D = DT) where D 0exp(-Q/R is the diffusion coefficient (m2/s), D 0 is the preexponential or frequency factor (m2/s), R is the gas constant (J/K mol), Q is the activation energy (J/mol), and T is absolute temperature (K). The rate of diffusion of hydrogen in aluminum decreases with increase in lithium additions. This is provisionally attributed to the stronger local binding energy between hydrogen and lithium atoms in the aluminum metal lattice.

  4. 民国回族报刊话语下的“穆斯林女子剪发问题”争论透视%The Debate on“Muslim Women’ s Hair Cutting” in Hui Magazines during the Republic of China

    Institute of Scientific and Technical Information of China (English)

    刘莉

    2015-01-01

    There are a variety of text materials about the debats on “Muslim Women’s Hair Cutting” by Hui society in Hui Magazines in the Republic of China .These materials have been sorted and analyzed to find out some important informa-tion about the debate such as its wedge and contents , the meaning of “hair” as a symbol of their lives comparing with Han women’s, and so on.The analysis reveals that “hair cutting” held an important place in the society of Hui and their reli-gion.This study can be considered as a meaningful case for Hui Muslims ’ social life in the Republic of China .%20世纪30年代,回族报刊上出现了一股关于“穆斯林女子剪发问题”的讨论热潮,这场争论与当时的社会背景密切相关,受到西方文化和汉族妇女解放运动兴起的女子剪发潮流影响。透视这些争论会发现,其争论的具体进程及表现本身被抹上了浓烈的伊斯兰宗教色彩,是伊斯兰教“建筑”在头发上的种种符号和想象,其实质是回族社会对回族女性社会地位及社会分工的再塑造。

  5. Solid-liquid Metastable Equilibria in Quaternary System Li_2SO_4 + Li_2CO_3 + Li_2B_4O_7 + H_2O at 288 K

    Institute of Scientific and Technical Information of China (English)

    SANG Shi-hua; ZHANG Zhen-lei; LI Ming

    2009-01-01

    Metastable equilibrium solubilities and densities of quaternary system Li_2SO_4+Li_2CO_3+Li_2B_4O_7+H_2O at 288 K were determined by isothermal evaporation method. According to the experimental data, the metastable equilibrium phase diagram was plotted. The metastable phase diagram had one invariant point F, three double saturated liquid curves E1F, E2F and E3F, and three crystallization fields corresponding to Li_2SO_4·H_2O, Li_2CO_3 and LiBO_2·8H_2O. It was found that lithium sulphate(Li_2SO_4) had the highest concentration and strong salting-out effects on the other salts. There were no solid solutions or double salts formed in the quaternary system at 288 K.

  6. 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.

  7. LiFePO4/polymer/natural graphite: low cost Li-ion batteries

    Energy Technology Data Exchange (ETDEWEB)

    Zaghib, K. [Institut de Recherche d' Hydro-Quebec (IREQ), 1800 Lionel-Boulet, Varennes, QC, J3X 1S1 (Canada)]. E-mail: karimz@ireq.ca; Striebel, K. [Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Guerfi, A. [Institut de Recherche d' Hydro-Quebec (IREQ), 1800 Lionel-Boulet, Varennes, QC, J3X 1S1 (Canada); Shim, J. [Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Armand, M. [Joint International Lab. CNRS/UdM UMR 2289 Departement de Chimie, Universite de Montereal, P.O. Box 6128, QC, H3C 3J7 (Canada); Gauthier, M [Joint International Lab. CNRS/UdM UMR 2289 Departement de Chimie, Universite de Montereal, P.O. Box 6128, QC, H3C 3J7 (Canada)

    2004-11-30

    The aging and performance of natural graphite/PEO-based gel electrolyte/LiFePO{sub 4} cells are reported. The gel polymer electrolytes were produced by electron-beam irradiation and then soaked in a liquid electrolyte. The natural graphite anode in gel electrolyte containing LiBF4-EC/GBL exhibited high reversible capacity (345 mAh/g) and high coulombic efficiency (91%). The LiFePO{sub 4} cathode in the same gel-polymer exhibited a reversible capacity of 160 mAh/g and 93% coulombic efficiency. Better performance was obtained at high-rate discharge with 6% carbon additive in the cathode, however the graphite anode performance suffers at high rate. The Li-ion gel polymer battery shows a capacity fade of 13% after 180 cycles and has poor performance at low temperature due to low diffusion of the lithium to the graphite in the GBL system. The LiFePO{sub 4}/gel/Li system has an excellent rate capacity. LiFePO{sub 4} cathode material is suitable for HEV application.

  8. LiFePO{sub 4}/polymer/natural graphite: low cost Li-ion batteries

    Energy Technology Data Exchange (ETDEWEB)

    Zaghib, K.; Guerfi, A. [Institut de Recherche d' Hydro-Quebec, Varennes (Canada); Striebel, K.; Shim, J. [Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Environmental Energy Technologies Div.; Armand, M.; Gauthier, M. [Universite de Montreal (Canada). Joint International Lab.

    2004-11-30

    The aging and performance of natural graphite/PEO-based gel electrolyte/LiFePO{sub 4} cells are reported. The gel polymer electrolytes were produced by electron-beam irradiation and then soaked in a liquid electrolyte. The natural graphite anode in gel electrolyte containing LiBF4-EC/GBL exhibited high reversible capacity (345 mAh/g) and high coulombic efficiency (91%). The LiFePO4 cathode in the same gel-polymer exhibited a reversible capacity of 160 mAh/g and 93% coulombic efficiency. Better performance was obtained at high-rate discharge with 6% carbon additive in the cathode, however the graphite anode performance suffers at high rate. The Li-ion gel polymer battery shows a capacity fade of 13% after 180 cycles and has poor performance at low temperature due to low diffusion of the lithium to the graphite in the GBL system. The LiFePO{sub 4}/gel/Li system has an excellent rate capacity. LiFePO{sub 4} cathode material is suitable for HEV application. (author)

  9. LiFePO 4 safe Li-ion polymer batteries for clean environment

    Science.gov (United States)

    Zaghib, K.; Charest, P.; Guerfi, A.; Shim, J.; Perrier, M.; Striebel, K.

    The performance of natural graphite-fibers/PEO-based gel electrolyte/LiFePO 4 cells (7 mAh, 4 cm 2) is reported. The gel polymer electrolytes were produced by electron-beam irradiation and then soaked in a liquid electrolyte. The natural graphite-fiber composite anode in gel electrolyte containing 1.5 M LiFSI-EC/GBL (1:3) exhibited high reversible capacity (361 mAh g -1) and high Coulombic efficiency (92%). The LiFePO 4 cathode in the same gel polymer exhibited a reversible capacity of 161 mAh g -1 and 93% Coulombic efficiency. A 1.5 M solution of LiFSI in ethylene carbonate (EC)/γ-butyrolactone (GBL) (1:3, v/v) mixed solvent is advantageous for use as the electrolyte in the laminated film bag because of its high flame point (135 °C), high boiling point (219 °C), low vapor pressure and high conductivity (10.2 mS cm -1 at 20 °C). The Li-ion gel polymer battery shows a very low capacity fade of 5% after 500 cycles and also has high-rate capability. The Li-ion gel polymer cell using LiFePO 4 cathodes is suitable for HEV applications.

  10. LiFePO{sub 4} safe Li-ion polymer batteries for clean environment

    Energy Technology Data Exchange (ETDEWEB)

    Zaghib, K.; Charest, P.; Guerfi, A.; Perrier, M. [Institut de Recherche d' Hydro-Quebec, 1800 Lionel-Boulet, Varennes, Que. (Canada J3X 1S1); Shim, J.; Striebel, K. [Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

    2005-08-26

    The performance of natural graphite-fibers/PEO-based gel electrolyte/LiFePO{sub 4} cells (7mAh, 4cm{sup 2}) is reported. The gel polymer electrolytes were produced by electron-beam irradiation and then soaked in a liquid electrolyte. The natural graphite-fiber composite anode in gel electrolyte containing 1.5M LiFSI-EC/GBL (1:3) exhibited high reversible capacity (361mAhg{sup -1}) and high Coulombic efficiency (92%). The LiFePO{sub 4} cathode in the same gel polymer exhibited a reversible capacity of 161mAhg{sup -1} and 93% Coulombic efficiency. A 1.5M solution of LiFSI in ethylene carbonate (EC)/{gamma}-butyrolactone (GBL) (1:3, v/v) mixed solvent is advantageous for use as the electrolyte in the laminated film bag because of its high flame point (135{sup o}C), high boiling point (219{sup o}C), low vapor pressure and high conductivity (10.2mScm{sup -1} at 20{sup o}C). The Li-ion gel polymer battery shows a very low capacity fade of 5% after 500cycles and also has high-rate capability. The Li-ion gel polymer cell using LiFePO{sub 4} cathodes is suitable for HEV applications. (author)

  11. 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.

  12. Line shift, line asymmetry, and the 6Li/7Li isotopic ratio determination

    CERN Document Server

    Cayrel, Roger; Chand, Hum; Bonifacio, Piercarlo; Spite, Monique; Spite, François; Petitjean, Patrick; Ludwig, Hans-Günter; Caffau, Elisabetta

    2007-01-01

    Context: Line asymmetries are generated by convective Doppler shifts in stellar atmospheres, especially in metal-poor stars, where convective motions penetrate to higher atmospheric levels. Such asymmetries are usually neglected in abundance analyses. The determination of the 6Li/7Li isotopic ratio is prone to suffering from such asymmetries, as the contribution of 6Li is a slight blending reinforcement of the red wing of each component of the corresponding 7Li line, with respect to its blue wing. Aims: The present paper studies the halo star HD 74000 and estimates the impact of convection-related asymmetries on the Li isotopic ratio determination. Method: Two methods are used to meet this aim. The first, which is purely empirical, consists in deriving a template profile from another element that can be assumed to originate in the same stellar atmospheric layers as Li I, producing absorption lines of approximately the same equivalent width as individual components of the 7Li I resonance line. The second metho...

  13. 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.

  14. Packing Transitions in Nanosized Li Clusters

    CERN Document Server

    Sung, M W; Weare, J H; Sung, Ming Wen; Kawai, Ryoichi; Weare, John H.

    1994-01-01

    Packing transitions in the lowest energy structures of Li clusters as a function of size have been identified via simulated annealing. For N>21, the large $p$ character of Li leads to unexpected ionic structures. At N~25, a packing pattern based on interpenetrating 13-atom icosahedra and similar to that of Na and K appears. This pattern persists until at N=55, where another transition to a structure based on a Mackay icosahedron occurs. For clusters of size 55 and 147, the optimized FCC structure representative of the bulk is still slightly higher in energy than the optimal MIC. (RK-94-03)

  15. The 'LiC Detector Toy' program

    Science.gov (United States)

    Regler, M.; Mitaroff, W.; Valentan, M.; Frühwirth, R.; Höfler, R.

    2008-07-01

    LiC is a simple but powerful and flexible software tool, written in MatLab, for basic detector design studies (geometries, material budgets) by determining the resolution of reconstructed track parameters. It is based on a helix track model including multiple scattering, and consists of a simplified simulation of the detector followed by track reconstruction using the Kalman filter. After a short description of LiC's main characteristics, we demonstrate its capabilities by applying this tool in a performance study of the LDC and SiD detector concepts at the International Linear Collider (ILC).

  16. 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.

  17. Comment on "Cycling Li-O₂ batteries via LiOH formation and decomposition".

    Science.gov (United States)

    Viswanathan, Venkatasubramanian; Pande, Vikram; Abraham, K M; Luntz, Alan C; McCloskey, Bryan D; Addison, Dan

    2016-05-01

    Based on a simple thermodynamic analysis, we show that iodide-mediated electrochemical decomposition of lithium hydroxide (LiOH) likely occurs through a different mechanism than that proposed by Liu et al (Research Article, 30 October 2015, p. 530). The mismatch in thermodynamic potentials for iodide/triiodide (I(-)/I3 (-)) redox and O2 evolution from LiOH implies a different active iodine/oxygen electrochemistry on battery charge. It is therefore possible that the system described in Liu et al may not form the basis for a rechargeable lithium-oxygen (Li-O2) battery.

  18. Synthesis and characterization of LiZnP and LiZnAs semiconductor material

    Science.gov (United States)

    Montag, Benjamin W.; Reichenberger, Michael A.; Arpin, Kevin R.; Sunder, Madhana; Nelson, Kyle A.; Ugorowski, Philip B.; McGregor, Douglas S.

    2015-02-01

    Research for a reliable solid-state semiconductor neutron detector continues because such a device has not been developed, and would have greater efficiency, than present-day gas-filled 3He and 10BF3 neutron detectors. Further, a semiconductor neutron detector would be more compact and rugged than most gas-filled or scintillator neutron detectors. The 6Li(n,t)4He reaction yields a total Q value of 4.78 MeV, a larger yield than the 10B(n,α)7Li, and is easily identified above background radiation interactions. Hence, devices composed of either natural Li (naturally 7.5% 6Li) or enriched 6Li (approximately 95% 6Li) may provide a semiconductor material for compact high-efficiency neutron detectors. A sub-branch of the III-V semiconductors, the filled tetrahedral compounds, known as Nowotny-Juza compounds (AIBIICV), are desirable for their cubic crystal structure and semiconducting electrical properties. These compounds were originally studied for photonic applications. In the present work, Equimolar portions of Li, Zn, and P or As were sealed under vacuum (10-6 Torr) in quartz ampoules with a boron nitride lining, and loaded into a compounding furnace. The ampoule was heated to 200 °C to form the Li-Zn alloy, subsequently heated to 560 °C to form the ternary compound, LiZnP or LiZnAs, and finally annealed to promote crystallization. The chemical composition of the synthesized starting material was confirmed at Galbraith Laboratories, Inc. by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), which showed the compounds can be reacted in equal ratios, 1-1-1, to form ternary compounds. Recent additions to the procedure have produced higher yields, and greater synthesis reliability. Synthesized powders were also characterized by x-ray diffraction, where lattice constants of 5.751±.001 Å and 5.939±.002 Å for LiZnP and LiZnAs, respectively, were determined.

  19. 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.

  20. 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

  1. 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

  2. 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...

  3. 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...

  4. Hydrogen storage in LiH: A first principle study

    Science.gov (United States)

    Banger, Suman; Nayak, Vikas; Verma, U. P.

    2014-04-01

    First principles calculations have been performed on the Lithium hydride (LiH) using the full potential linearized augmented plane wave (FP-LAPW) method within the framework of density functional theory. We have extended our calculations for LiH+2H and LiH+6H in NaCl structure. The structural stability of three compounds have been studied. It is found that LiH with 6 added Hydrogen atoms is most stable. The obtained results for LiH are in good agreement with reported experimental data. Electronic structures of three compounds are also studied. Out of three the energy band gap in LiH is ˜3.0 eV and LiH+2H and LiH+6H are metallic.

  5. Hydrogen storage in LiH: A first principle study

    Energy Technology Data Exchange (ETDEWEB)

    Banger, Suman, E-mail: sumanphy28@gmail.com; Nayak, Vikas, E-mail: sumanphy28@gmail.com; Verma, U. P., E-mail: sumanphy28@gmail.com [School of Studies in Physics, Jiwaji University, Gwalior-474011 (India)

    2014-04-24

    First principles calculations have been performed on the Lithium hydride (LiH) using the full potential linearized augmented plane wave (FP-LAPW) method within the framework of density functional theory. We have extended our calculations for LiH+2H and LiH+6H in NaCl structure. The structural stability of three compounds have been studied. It is found that LiH with 6 added Hydrogen atoms is most stable. The obtained results for LiH are in good agreement with reported experimental data. Electronic structures of three compounds are also studied. Out of three the energy band gap in LiH is ∼3.0 eV and LiH+2H and LiH+6H are metallic.

  6. 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...

  7. 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...

  8. Hydrogen Sorption in Erbium Borohydride Composite Mixtures with LiBH4 and/or LiH

    Directory of Open Access Journals (Sweden)

    Michael Heere

    2017-04-01

    Full Text Available Rare earth (RE metal borohydrides have recently been receiving attention as possible hydrogen storage materials and solid-state Li-ion conductors. In this paper, the decomposition and reabsorption of Er(BH43 in composite mixtures with LiBH4 and/or LiH were investigated. The composite of 3LiBH4 + Er(BH43 + 3LiH has a theoretical hydrogen storage capacity of 9 wt %, nevertheless, only 6 wt % hydrogen are accessible due to the formation of thermally stable LiH. Hydrogen sorption measurements in a Sieverts-type apparatus revealed that during three desorption-absorption cycles of 3LiBH4 + Er(BH43 + 3LiH, the composite desorbed 4.2, 3.7 and 3.5 wt % H for the first, second and third cycle, respectively, and thus showed good rehydrogenation behavior. In situ synchrotron radiation powder X-ray diffraction (SR-PXD after ball milling of Er(BH43 + 6LiH resulted in the formation of LiBH4, revealing that metathesis reactions occurred during milling in these systems. Impedance spectroscopy of absorbed Er(BH43 + 6LiH showed an exceptional high hysteresis of 40–60 K for the transition between the high and low temperature phases of LiBH4, indicating that the high temperature phase of LiBH4 is stabilized in the composite.

  9. Performance of new 10 kW class MCFC using Li/K and Li/Na electrolyte

    Energy Technology Data Exchange (ETDEWEB)

    Mugikura, Yoshihiro; Yoshiba, Fumihiko; Izaki, Yoshiyuki; Watanabe, Takao [Central Research Institute of Electric Power Industry, Kanagawa-ken (Japan)] [and others

    1996-12-31

    The molten carbonate fuel cell (MCFC) uses generally mixture of lithium carbonate and potassium carbonate (Li/K) as the electrolyte. NiO cathode dissolution is one of serious problems for MCFC life. The NiO cathode has been found to dissolve into the electrolyte as Ni{sup 2+} ion which is reduced to metallic Ni by H{sub 2} in the fuel gas and bridges the anode and the cathode. The bridges short circuit and degrade cell performance and shorten cell life. Since solubility of NiO in mixture of lithium carbonate and sodium carbonate (Li/Na) is lower than in Li/K, it takes longer time to take place slowing by NiO cathode dissolution in Li/Na compared with in Li/K. The ionic conductivity of Li/Na is higher than of Li/K, however, oxygen solubility in Li/Na is lower 9 than in Li/K. A new 10 kW class MCFC stack composed of Li/K cells and Li/Na cells, was tested. Basic performance of the Li/K cells and Li/Na cells of the stack was reported.

  10. Studies on the thermal decomposition kinetics of LiPF6 and LiBC4O8

    Indian Academy of Sciences (India)

    Li Shi-You; Ma Pei-Hua; Cui Xiao-Ling; Ren Qi-Du; Li Fa-Qiang

    2008-03-01

    Thermal decomposition of LiPF6 and LiBC4O8 (lithium bis(oxalate)borate, abbreviated as LiBOB) were studied using TG (thermogravimetry)-DTG (derivative thermogravimetry) method with different heating rate of 5, 10, 20 and 40°C min-1 or at different constant temperature C (109.80, 118.79, 148.41, 176.86 °C for LiPF6 and 278.51, 298.13, 317.65, 336.13 for LiBOB). From the nonisothermal kinetics we calculate that LiPF6 is 1.01, LiBOB is 1.04, LiPF6 is 91907.61 J/mol, and LiBOB is 205179.88 J/mol; from the isothermal kinetics we calculate that n for both LiPF6 and LiBOB are 1, LiPF6 is 91907.61 J/mol, LiBOB is 205179.88 J/mol, lnALiPF6 is 16.89 s-1, and lnALiBOB is 31.96 s-1. The results obtained from the two ways have minor differences and can validate each other.

  11. Structure characteristics and electrochemical properties of LiMn2O4 modified by LiCoO2

    Institute of Scientific and Technical Information of China (English)

    Zhenping Cai; Mingxun Li; Shigang Lu; Weihua Jin

    2005-01-01

    In order to improve the cycle performance of LiMn2O4, the modified LiMn2O4 was prepared by solid-state reactions using LiMn2O4 and LiCoO2 as precursors. XRD and EDS were used to study the structure properties of the modified LiMn2O4. The electrochemical properties of the modified LiMn2O4 were also investigated. The results show that Li and Co atoms could insert into the LiMn2O4 crystal lattice and a newly formed spinel phase, modified LiMn2O4 was obtained. The modified LiMn2O4 exhibits excellent cycle ability at room and elevated temperatures compared to pure LiMn2O4. The improved electrochemical stability of the modified LiMn2O4 attributes to the entrance of Li and Co ions inserted into the spinel crystal structure.

  12. 回族传承的民间武术心意六合拳考述%Exploration on the Mind-and-Intention Six Harmonies Fists Spreading amongst Hui People

    Institute of Scientific and Technical Information of China (English)

    马锦丹

    2012-01-01

    The Mind-and-Intention Six Harmonies Fists is an excellent genre not only in Hui martial arts, but also in Chinese martial arts in a bigger sense. This paper is written with library and field researches to explore its or-igin and development, as well as other its detailed aspects such as principle, content, style and characteristics. All these would be beneficial to readers to know such a martial genre in Henan province.%心意六合拳不仅是回族武术的重要组成部分,同时也是中华传统武术中的优秀拳种。本文通过文献资料研究和田野调查的方法,探讨了回族所传承的民间武术心意六合拳(河南心意六合拳)的源流,并对其名称的由来及其原理、内容、风格、特点等进行了考述,对深入了解心意六合拳有积极意义。

  13. A Comparative Study of Music Morphologies and Singing Styles between Salars and Huis%撒拉族、回族民歌音乐形态及演唱风格比较研究

    Institute of Scientific and Technical Information of China (English)

    张连葵

    2012-01-01

    There are great varieties of Salar folk songs and Hui folk songs in Qinghai Province. In the long historical development, they have formed their special and various music morphologies and singing styles. This essay mainly focuses on the comparative study of the generality and individuality of the folk songs. So it is greatly significant for inheriting the traditional ethnic music, digging out the precious ethnic music resources andfrequently innovating and developing them.%青海撒拉族民歌和回族民歌种类繁多,在长期的历史发展过程中,形成了多姿多彩、各具特色的音乐形态及演唱风格。对两个民族民歌共性与个性的比较研究,对于继承民族音乐传统,挖掘宝贵的民族音乐资源,从而不断创新与发展民族音乐具有重要的意义。

  14. Study of the Modern Hui Journalist Ding Zhuyuan’s Occupational Outlook and Society Practice%近代回族报人丁竹园的职业观及其社会实践研究

    Institute of Scientific and Technical Information of China (English)

    张琴; 王晶

    2012-01-01

    丁竹园是近代回族社会早期重要报人的代表,他主张白话办报、为民办报,言论自由办报。他身体力行,撰文立说,发表演说,创办刊物,积极投入到社会实践当中,是近代回族社会杰出的回族爱国知识分子。通过对丁竹园生平活动、办报职业观、社会实践及其社会影响等几个方面,来评述他的先进事迹。%Ding Zhuyuan was an important representative of journalist in modern Hui society.He advocated running a newspaper in vernacular Chinese,running a newspaper for people and running a newspaper of freedom speech.At the same time,he published the paper,gave speech and started the publication,actively devoting himself to social practice.This paper will comment on Ding Zhuyuan’s outstanding deeds through presenting his lifetime activity,occupational outlook of running a newspaper,society practice and his social influence.

  15. Avoidance and Use of Buddhism Words in Hui Muslims Language in Northwest China%西北回族话对汉语佛教词的回避与化用

    Institute of Scientific and Technical Information of China (English)

    李生信

    2014-01-01

    In Hui Muslims’ Language, because of religious taboo and ethnic customs, some words of Buddhism in Chinese are avoided, even being refused to use in their daily life, yet some of them are kept in their daily life unconscious-ly, of which are embodied with meanings of Islam.The avoidance and use of these words is the expression of communica-tion of language and culture.%在西北回族话中,由于宗教禁忌或民族习俗等原因,对汉语中的某些佛教词采用了回避,甚至排斥的态度,但又有意或者无意地保留了一些原本属于表达佛教意义的词,只是在使用这些汉语佛教词时,赋予了伊斯兰教内容。这种词语的回避和化用,是语言接触与文化兼容在语言中的表现。

  16. Correlation Study between Bud Length and Gametophyte Development Stage in Daylily (Hemerocallis hybridus cv. 'Stella de oro')%大花萱草'金娃娃'雌雄蕊发育进程及其与花蕾长度的相关性研究

    Institute of Scientific and Technical Information of China (English)

    崔贵梅; 杨丽莉; 孙毅; 张彦芹

    2008-01-01

    采用石蜡切片法对大花萱草'金娃娃'(Hemerocallis hybridus cv.'Stella de oro')不同花蕾长度时雌雄蕊的形态及其发育时期进行观察,以探讨花营长度与雌雄蕊发育进程的相关性.结果显示:(1)'金娃娃'雄蕊发育正常,小孢子发生及雄配子体的发育过程与常见单子叶植物类似,成熟花粉属二胞型;雌蕊子房具多胚珠,但各胚珠中雌配子体发育进程不同步,出现大量无胚囊或胚囊内核发育紊乱、解体的现象而导致雌配子体发育不正常,大田结实率不到5%且种子干瘪不能发芽.(2)'金娃娃'花蕾长度与花粉发育时期具有相关性,为花蕾长度作为组织培养外植体取材外形标准提供丁植物胚胎学依据.

  17. Experimental studies with metal-hydrogen-systems for the development of the Li/LiH-process. Experimentelle Untersuchungen an Metall-Wasserstoff-Systemen zur Entwicklung des Li/LiH-Prozesses

    Energy Technology Data Exchange (ETDEWEB)

    Weirich, W.

    1982-01-25

    In this work an attempt is made to further develop the Li/LiH-process, which is a hybrid cyclic process, for the thermochemical splitting of water. The studies presented are related with the more critical aspects of the method, such as the development of the membrane on the basis of homogeneous alloys, and the segregation of hydrogen from Li/LiH-melts.

  18. A NOTE ON THE LI-CU-O SYSTEM

    NARCIS (Netherlands)

    Berger, R

    1991-01-01

    In the Li-Cu-O system two new ternary phases have been found, tentatively described by the stoichiometries LiCu3O3 and LiCu2O2, and both containing Cu(I) and Cu(II). They exhibit p-type "hopping" conduction owing to localized charge carriers. Their powder patterns are successfully indexed on high-sy

  19. 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...

  20. 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...

  1. Lattice sites of Li in CdTe

    NARCIS (Netherlands)

    Restle, M; BharuthRam, K; Quintel, H; Ronning, C; Hofsass, H; Wahl, U; Jahn, SG

    1996-01-01

    The lattice site occupation of Li in CdTe at temperatures between 40 and 500 K was investigated with the emission channeling method. Radioactive Li-8 ions were implanted at low doses into CdTe single crystals. Emission channeling patterns of alpha-particles emitted in the nuclear decay of Li-8 (t(1/

  2. 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...

  3. 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)...

  4. 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...

  5. 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 &...

  6. 2009 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Douglas Co.

    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 Douglas County PUD area of interest (AOI) east of Wenatchee, WA on May 2nd ?...

  7. 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...

  8. 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...

  9. 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,...

  10. 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...

  11. 2005 Puget Sound LiDAR Consortium (PSLC) Bare-Earth Topographic LiDAR: Lynnwood

    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. Lynnwood, Snohomish County, Washington. This...

  12. 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...

  13. 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,...

  14. 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...

  15. 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...

  16. 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,...

  17. Bulk and Surface Properties of Liquid Al-Li and Li-Zn Alloys

    Science.gov (United States)

    Trybula, Marcela; Gancarz, Tomasz; Gasior, Wladyslaw; Pasturel, Alain

    2014-11-01

    Physicochemical properties like density, surface tension, and viscosity of liquid binary Al-Li and Li-Zn alloys have been measured using draining crucible method. The experimentally measured surface-tension values have been compared to theoretical results based either on the Butler model or the compound formation model assuming the existence of the most favored A 1 B 2 and A 2 B 3 clusters. Several models for viscosity calculation have been also applied and discussed in confrontation with measured data. Finally, the clustering effects in the liquid Al-Li and Li-Zn alloys have been examined using two microscopic functions, i.e., the concentration fluctuation function in the long-wavelength limit and the Warren-Cowley short-range order parameter.

  18. 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...

  19. Enabling High Energy Density Li-Ion Batteries through Li{sub 2}O Activation.

    Energy Technology Data Exchange (ETDEWEB)

    Abouimrane, Ali; Cui, Yanjie; Chen, Zonghai; Belharouak, Ilias; Yahia, Hamdi B.; Wu, Huiming; Assary, Rajeev; Curtiss, Larry A.; Amine, Khalil

    2016-09-01

    Lithium oxide (Li2O) is activated in the presence of a layered composite cathode material (HEM) significantly increasing the energy density of lithium-ion batteries. The degree of activation depends on the current rate, electrolyte salt, and anode type. In full-cell tests, the Li2O was used as a lithium source to counter the first-cycle irreversibility of high-capacity composite alloy anodes. When Li2O is mixed with HEM to serve as a cathode, the electrochemical performance was improved in a full cell having an SiO-SnCoC composite as an anode. The mechanism behind the Li2O activation could also explain the first charge plateau and the abnormal high capacity associated with these high energy cathode materials.

  20. 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...

  1. Electrochemical formation of Mg-Li-Ca alloys by codeposition of Mg, Li and Ca from LiCl-KCl-MgCl2-CaCl2 melts.

    Science.gov (United States)

    Yan, Yong De; Zhang, Mi Lin; Xue, Yun; Han, Wei; Cao, Dian Xue; Jing, Xiao Yan; He, Li Yi; Yuan, Yi

    2009-08-07

    This work presents electrochemical formation of Mg-Li-Ca alloys via codeposition of Mg, Li and Ca on a molybdenum electrode in KCl-LiCl-MgCl(2)-CaCl(2) melts at 943 K. Cyclic voltammograms (CVs) showed that the underpotential deposition (UPD) of calcium on pre-deposited magnesium leads to the formation of a liquid Mg-Ca alloy, and the succeeding underpotential deposition of lithium on pre-deposited Mg-Ca alloy leads to the formation of a liquid Mg-Li-Ca solution. Chronopotentiometric measurements indicated that the codepositon of Mg, Li and Ca occurs at current densities more negative than -0.31 A cm(-2) in LiCl-KCl-MgCl(2) (5 wt%) melts containing 1 wt% CaCl(2). Chronoamperograms demonstrated that the onset potential for the codeposition of Mg, Li and Ca is -2.200 V, and the codeposition of Mg, Li and Ca is formed when the applied potentials are more negative than -2.200 V. X-Ray diffraction (XRD) indicated that Mg-Li-Ca alloys with different phases were formed via galvanostatic electrolysis. The microstructures of typical alpha and beta phases of Mg-Li-Ca alloys were characterized by optical microscope (OM) and scanning electron microscopy (SEM). The analysis of energy dispersive spectrometry (EDS) showed that the element Ca mainly distributes along grain boundary in Mg-Li-Ca alloys. The results of inductively coupled plasma analysis determined that the chemical compositions of Mg-Li-Ca alloys correspond with the phase structures of XRD patterns, and the lithium and calcium contents of Mg-Li-Ca alloys depend on the concentrations of MgCl(2) and CaCl(2).

  2. Irene Väli / Ruth Alas

    Index Scriptorium Estoniae

    Alas, Ruth, 1960-

    2007-01-01

    AS Haapsalu Kuurort juhataja Irene Väli juhtimispõhimõtted, muudatuste elluviimise taktika, karjäär, väärtushinnangud, organisatsiooni arenguvõimalused, puhkus ja perekond. Eluloolised andmed, haridus, töökogemus. Kommenteerib kuurordi ilukeskuse juhataja Merle Murik

  3. 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

  4. 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

  5. Examples for Application of Hegu (LI 4)

    Institute of Scientific and Technical Information of China (English)

    Qian Linchao

    2006-01-01

    @@ Hegu (LI 4), a source point of Large Intestine Channel for clearing intestine and regulating stomach and spleen, can be clinically used to treat stomachache, diarrhea, vomiting, hiccup and constipation caused by dysfunction of the spleen,stomach and intestine with good curative effect.Examples are taken as follows:

  6. 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

  7. LI Ligang honored with Doornbos prize

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Together with two colleagues from Europe and US,Dr.LI Ligang from the CAS Shanghai Astronomical Observatory has been awarded the Doornbos Memorial Prize for his outstanding contributions to the studies of thermal convection inside the earth and a planet,dynamo theory,and simulation.

  8. Pakistanis Eager to Welcome Premier Li Keqiang

    Institute of Scientific and Technical Information of China (English)

    Syed; Ali; Nawaz; Gilani

    2013-01-01

    <正>"We the Pakistani Nation,are very much eager to welcome Chinese Premier Li Keqiang on his first visit to Pakistan after taking over the Premiership of the People’s Republic of China whom we are enjoying deep rooted and exemplary friendship for

  9. Gadamer em 10 lições

    Directory of Open Access Journals (Sweden)

    Claudinei Aparecido de Freitas da Silva

    2017-04-01

    Full Text Available Resenho, aqui, 10 Lições sobre Gadamer, importante trabalho introdutório sobre a gênese e o desenvolvimento do programa hermenêutico de Hans-Georg Gadamer (1900-2002, notável pensador, cuja obra impacta, decisivamente, o panorama intelectual do século passado.

  10. 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.

  11. Reversible hydrogen storage in titanium-catalyzed LiAlH{sub 4}-LiBH{sub 4} system

    Energy Technology Data Exchange (ETDEWEB)

    Mao, J.F. [Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); Guo, Z.P., E-mail: zguo@uow.edu.a [Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong, NSW 2522 (Australia); CSIRO National Hydrogen Materials Alliance, CSIRO Energy Centre, 10 Murray Dwyer Circuit, Steel River Estate, Mayfield West, NSW 2304 (Australia); Liu, H.K. [Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); CSIRO National Hydrogen Materials Alliance, CSIRO Energy Centre, 10 Murray Dwyer Circuit, Steel River Estate, Mayfield West, NSW 2304 (Australia); Yu, X.B., E-mail: yuxuebin@fudan.edu.c [Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); CSIRO National Hydrogen Materials Alliance, CSIRO Energy Centre, 10 Murray Dwyer Circuit, Steel River Estate, Mayfield West, NSW 2304 (Australia); Department of Materials Science, Fudan University, Shanghai 200433 (China)

    2009-11-13

    We have investigated the hydrogen storage properties of the LiAlH{sub 4}-LiBH{sub 4} system, both un-doped and doped with titanium based catalysts. It was found that TiF{sub 3} exhibited the superior catalytic effects in terms of enhancing the hydriding/dehydriding kinetics and reducing the dehydrogenation temperature of the LiAlH{sub 4}-LiBH{sub 4} system. Compared to the un-doped LiAlH{sub 4}-LiBH{sub 4} system, the onset temperatures of the 5 mol% TiF{sub 3}-doped sample for the first and second dehydrogenation steps were decreased by 64 and 150 deg. C, respectively. X-ray diffraction patterns of the dehydrogenated samples revealed that the produced Al from LiAlH{sub 4} could react with B from the decomposition of LiBH{sub 4} to form AlB{sub 2} and LiAl compounds. Pressure-composition-temperature (PCT) and van't Hoff plots made it clear that the decomposition enthalpy of LiBH{sub 4} in the TiF{sub 3}-doped LiAlH{sub 4}-LiBH{sub 4} system is decreased from 74 kJ/(mol of H{sub 2}) for the pure LiBH{sub 4} to 60.4 kJ/(mol of H{sub 2}). The dehydrogenation products of the TiF{sub 3}-doped LiAlH{sub 4}-LiBH{sub 4} sample can absorb 3.76 and 4.78 wt.% of hydrogen in 1 h and 14 h, respectively, at 600 deg. C and under 4 MPa of hydrogen. The formation of LiBH{sub 4} was detected by X-ray diffraction in the rehydrogenated sample.

  12. Multi-spin-state at a Li3PO4/LiCoO2 (104) interface.

    Science.gov (United States)

    Sumita, Masato; Ohno, Takahisa

    2016-02-14

    We have found the disproportion between the intermediate spin (IS) and low spin (LS) configurations of Co atoms at a Li3PO4/LiCoO2 (104) interface through density functional molecular dynamics (DF-MD). The manifold of the spin state at the interface, however, does not affect the band alignment between the Li3PO4 and LiCoO2 regions.

  13. On the reduction of generalized polylogarithms to Li n and Li2 ,2 and on the evaluation thereof

    Science.gov (United States)

    Frellesvig, Hjalte; Tommasini, Damiano; Wever, Christopher

    2016-03-01

    We give expressions for all generalized polylogarithms up to weight four in terms of the functions log, Li n , and Li2,2, valid for arbitrary complex variables. Furthermore we provide algorithms for manipulation and numerical evaluation of Li n and Li2,2, 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.

  14. 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.

  15. The Hui Culture and Reconstruction of South Silk Route in the Context of“One Belt And one Road”%回族文化与“一带一路”背景下南方丝绸之路的重构

    Institute of Scientific and Technical Information of China (English)

    纳文汇

    2016-01-01

    “一带一路”建设是新形势下中国对外开放的重要战略布局,也是中国经济社会发展的重大历史机遇,而南方丝绸之路是古丝绸之路的重要组成部分,重构南方丝绸之路是“一带一路”建设的重要内容。“一带一路”沿线国家多,民族多样、宗教多元,民族文化和宗教文化丰富而厚重,其中,伊斯兰文化和回族文化是“一带一路”建设和重构南方丝绸之路的重要资源。因此,要在传承和弘扬伊斯兰文化和回族优秀传统文化的基础上,进一步加强回族文化建设,积极引导伊斯兰教与社会主义相适应,充分调动和发挥回族穆斯林和回族文化在“一带一路”建设中的积极作用。%“One Belt And One Road” construction under the new situation of China's opening to the outside is important strategic layout, and is also great historical opportunity of China's economic and social development, and the southern silk road is an important part of the ancient silk road, re-construct the southern silk road is an important content of the construction of the“area”.“Area” all the way along the national, ethnic diversity and reli-gious pluralism, national culture and religious culture, rich and thick, among them, the islamic culture and the culture of the hui nationality is the“area” construction and reconstruction the important resources in the southern silk road.In inheriting and carrying forward the culture of Islam and, therefore, on the basis of the excellent traditional culture of hui nationality, further strengthening the construction of the hui culture, actively guide Islam adapted to socialism, and fully mobilize and exert the hui Muslim hui culture positive role in constructing the“area”.

  16. Reaction mechanism study of 7Li(7Li, 6He) reaction at above Coulomb barrier energies

    Indian Academy of Sciences (India)

    V V Parkar; V Jha; S Santra; B J Roy; K Ramachandran; A Shrivastava; K Mahata; A Chatterjee; S Kailas

    2009-02-01

    The elastic scattering and the 6He angular distributions were measured in 7Li + 7Li 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. The one-step proton transfer was found to be the dominant reaction mechanism in 6He production.

  17. Clay nanocomposites for use in Li batteries

    Science.gov (United States)

    Moore, Gregory John

    1999-11-01

    Nanocomposites, materials made of more than one component and combined in an ordered manner on the nanometer scale, were synthesized using clay mineral hosts with various types of guests. The guests include polymers such as polyethylene oxide (PEO) and polyaniline (PANI), large molecules such as ethylmethyl sulfone, tetramethylene sulfone, and various length alkylamines. Vanadyl groups (VO 2+) were also incorporated with the clays. The otherwise non-swellable mica clay, synthetic Na-fluorophlogopite, was expanded by intercalation of acidic ions such as Cu2+ and Fe3+. As aqueous solutions, these ions caused the stable fluoromica to go from its dehydrated interlayer spacing of 9.8 A to over 14 A. This clay became a host for many other reactions including swelling with alkylamines to over 25 A. However, despite hydrated Cu2+ ions swelling fluorophlogopite, polymeric species such as PEO or PANI could not be inserted. Another clay that was used for formation of nanocomposites came from a procedure for the synthesis of Li-taeniolite, Li(Mg2Li)Si 4O10F2. The clay was synthesized following a high temperature method that led to a non-reactive product. Instead, a novel precursor route was employed that gave a clay product with a single hydration layer. Various chemical analyses gave a formula of Li0.8(Mg 2.2Li0.8)Si4O10(F1.6O 0.4)·H2O. For the purpose of forming nanocomposite electrolytes, ethylmethyl sulfone was synthesized and incorporated into the clay. For comparison of different shaped sulfones, tetramethylene sulfone also was inserted into the layers for electrolytic studies. To make a polymer-clay electrolyte, polyethylene oxide was intercalated into the Li-taeniolite. All of these new electrolyte materials were characterized using impedance spectroscopy for measurement of their conductivity. Syntheses and analyses are thoroughly discussed for all of these materials. Special attention is placed on powder x-ray diffraction and thermogravimetric techniques to

  18. Preparation of Li-rich layered-layered type xLi2MnO3·(1-x)LiMnO2 nanorods and its electrochemical performance as cathode material for Li-ion battery

    Science.gov (United States)

    Yang, Fan; Zhang, Qinggang; Hu, Xiaohong; Peng, Tianyou; Liu, Jianqiang

    2017-06-01

    Layered-layered type xLi2MnO3·(1-x)LiMnO2 (x = 0.91, 0.78, 0.67, 0.54, 0.42, and 0.32) nanorods with a diameter of 100-200 nm and length of 400-1000 nm are prepared through a pyrolysis reduction process of monoclinic Li2MnO3 (m-Li2MnO3) nanorods. All the synthesized xLi2MnO3·(1-x)LiMnO2 nanorods exhibit the main characteristic diffraction peaks of m-Li2MnO3 in addition to some weak peaks attributable to m-LiMnO2 especially for those composites with x window of 2.0-4.8 V. The m-LiMnO2 portion in those synthesized composites can significantly enhance the reversible capacity but lower the cyclic stability, while the m-Li2MnO3 portion can improve the cyclic stability due to its retardation effect of the layered-to-spinel transformation during the charge/discharge processes, and thus xLi2MnO3·(1-x)LiMnO2 nanorods with x = 0.54 exhibits the best cyclic and rate performance since it contains appropriate m-Li2MnO3/m-LiMnO2 contents to balance the reversible capacity and Jahn-Teller effect. The present findings demonstrate an effective strategy for the development of low-cost pure Mn-based Li-rich layered cathode materials with adjustable reversible capacity, cyclic and rate performance by tailoring the composition.

  19. 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.

  20. Correlation of anisotropy and directional conduction in β-Li3PS4 fast Li+ conductor

    Science.gov (United States)

    Chen, Yan; Cai, Lu; Liu, Zengcai; dela Cruz, Clarina R.; Liang, Chengdu; An, Ke

    2015-07-01

    This letter reports the correlation of anisotropy and directional conduction in the fast Li+ conductor β-Li3PS4, one of the low-symmetry crystalline electrolyte candidates. The material has both high conductivity and good stability that serves well for the large-scale energy storage applications of all-solid-state lithium ion batteries. The anisotropic physical properties, demonstrated here by the thermal expansion coefficients, are crucial for compatibility in the solid-state system and battery performance. Neutron and X-ray powder diffraction measurements were done to determine the crystal structure and thermal stability. The crystallographic b-axis was revealed as a fast expansion direction, while negligible thermal expansion was observed along the a-axis around the battery operating temperatures. The anisotropic behavior has its structural origin from the Li+ conduction channels with incomplete Li occupancy and a flexible connection of LiS4 and PS4 tetrahedra within the framework. This indicates a strong correlation in the direction of the ionic transport in the low-symmetry Li+ conductor.

  1. Epitaxial thin film growth of LiH using a liquid-Li atomic template

    Energy Technology Data Exchange (ETDEWEB)

    Oguchi, Hiroyuki, E-mail: oguchi@nanosys.mech.tohoku.ac.jp [Department of Nanomechanics, Tohoku University, Sendai 980-8579 (Japan); Micro System Integration Center (muSIC), Tohoku University, Sendai 980-0845 (Japan); Ikeshoji, Tamio; Orimo, Shin-ichi [Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); Advanced Institute for Materials Research (AIMR), Tohoku University, Sendai 980-8577 (Japan); Ohsawa, Takeo; Shiraki, Susumu; Hitosugi, Taro [Advanced Institute for Materials Research (AIMR), Tohoku University, Sendai 980-8577 (Japan); Kuwano, Hiroki [Department of Nanomechanics, Tohoku University, Sendai 980-8579 (Japan)

    2014-11-24

    We report on the synthesis of lithium hydride (LiH) epitaxial thin films through the hydrogenation of a Li melt, forming abrupt LiH/MgO interface. Experimental and first-principles molecular dynamics studies reveal a comprehensive microscopic picture of the crystallization processes, which sheds light on the fundamental atomistic growth processes that have remained unknown in the vapor-liquid-solid method. We found that the periodic structure that formed, because of the liquid-Li atoms at the film/MgO-substrate interface, serves as an atomic template for the epitaxial growth of LiH crystals. In contrast, films grown on the Al{sub 2}O{sub 3} substrates indicated polycrystalline films with a LiAlO{sub 2} secondary phase. These results and the proposed growth process provide insights into the preparation of other alkaline metal hydride thin films on oxides. Further, our investigations open the way to explore fundamental physics and chemistry of metal hydrides including possible phenomena that emerge at the heterointerfaces of metal hydrides.

  2. Li-rich layer-structured cathode materials for high energy Li-ion batteries

    Science.gov (United States)

    Li, Liu; Lee, Kim Seng; Lu, Li

    2014-08-01

    Li-rich layer-structured xLi2MnO3 ṡ (1 - x)LiMO2 (M = Mn, Ni, Co, etc.) materials have attracted much attention due to their extraordinarily high reversible capacity as the cathode material in Li-ion batteries. To better understand the nature of this type of materials, this paper reviews history of development of the Li-rich cathode materials, and provides in-depth study on complicated crystal structures and reaction mechanisms during electrochemical charge/discharge cycling. Despite the fabulous capability at low rate, several drawbacks still gap this type of high-capacity cathode materials from practical applications, for instance the large irreversible capacity loss at first cycle, poor rate capability, severe voltage decay and capacity fade during electrochemical charge/discharge cycling. This review will also address mechanisms for these inferior properties and propose various possible solutions to solve above issues for future utilization of these cathode materials in commercial Li-ion batteries.

  3. Li-ion conduction in the LiBH4:LiI system from Density Functional Theory calculations and Quasi-Elastic Neutron Scattering

    DEFF Research Database (Denmark)

    Myrdal, Jon Steinar Gardarsson; Blanchard, Didier; Sveinbjörnsson, Dadi Þorsteinn

    2013-01-01

    defect sites, giving rise to high defect mobility. QENS results at 380 K show long-range diffusion of Li+, with jump lengths of one unit cell and jump rates in agreement with those obtained from DFT, and the application of the bias potential increases the diffusion constant by a factor of 2. At 300 K......The hexagonal high-temperature polymorph of LiBH4 is stabilized by solid solution with LiI to exhibit superionic Li+ ionic conductivity at room temperature. Herein, the mechanisms for the Li+ diffusion are investigated for the first time by density functional theory (DFT) calculations coupled......, the QENS data reveal jump events of shorter length (2 Å), which could correspond to a jump process of Li+ interstitials to an intermediate lattice site, in agreement with DFT calculations....

  4. Concentration dependence of Li+/Na+ diffusion in manganese hexacyanoferrates

    Science.gov (United States)

    Takachi, Masamitsu; Fukuzumi, Yuya; Moritomo, Yutaka

    2016-06-01

    Manganese hexacyanoferrates (Mn-HCFs) with a jungle-gym-type structure are promising cathode materials for Li+/Na+ secondary batteries (LIBs/SIBs). Here, we investigated the diffusion constants D Li/D Na of Li+/Na+ against the Li+/Na+ concentration x Na/x Li and temperature (T) of A 1.32Mn[Fe(CN)6]0.833.6H2O (A = Li and Na). We evaluated the activation energy E\\text{a}\\text{Li}/E\\text{a}\\text{Na} of D Li/D Na against x Na/x Li. We found that E\\text{a}\\text{Na} steeply increases with x Na from 0.41 eV at x Na = 0.69 to 0.7 eV at 1.1. The increase in E\\text{a}\\text{Na} is ascribed to the occupancy effect of the Na+ site. The increase in E\\text{a}\\text{Li} is suppressed, probably because the number of Li+ sites is three times that of Na+ sites.

  5. Revision of the Li13Si4 structure

    Directory of Open Access Journals (Sweden)

    Thomas F. Fässler

    2013-12-01

    Full Text Available Besides Li17Si4, Li16.42Si4, and Li15Si4, another lithium-rich representative in the Li–Si system is the phase Li13Si4 (tridecalithium tetrasilicide, the structure of which has been determined previously [Frank et al. (1975. Z. Naturforsch. Teil B, 30, 10–13]. A careful analysis of X-ray diffraction patterns of Li13Si4 revealed discrepancies between experimentally observed and calculated Bragg positions. Therefore, we redetermined the structure of Li13Si4 on the basis of single-crystal X-ray diffraction data. Compared to the previous structure report, decisive differences are (i the introduction of a split position for one Li site [occupancy ratio 0.838 (7:0.162 (7], (ii the anisotropic refinement of atomic displacement parameters for all atoms, and (iii a high accuracy of atom positions and unit-cell parameters. The asymmetric unit of Li13Si4 contains two Si and seven Li atoms. Except for one Li atom situated on a site with symmetry 2/m, all other atoms are on mirror planes. The structure consists of isolated Si atoms as well as Si–Si dumbbells surrounded by Li atoms. Each Si atom is either 12- or 13-coordinated. The isolated Si atoms are situated in the ab plane at z = 0 and are strictly separated from the Si–Si dumbbells at z = 0.5.

  6. Synthesis and optical characterization of LiKB4O7, Li2B6O10, and LiCsB6O10 glasses

    Energy Technology Data Exchange (ETDEWEB)

    Adamiv, V.; Teslyuk, I.; Dyachok, Ya.; Romanyuk, G.; Krupych, O.; Mys, O.; Martynyuk-Lototska, I.; Burak, Ya.; Vlokh, R.

    2010-10-01

    In the current work we report on the synthesis of LiKB4O7, Li2B6O10, and LiCsB6O10 borate glasses. The results for their piezo-optic, acousto-optic, acoustic, elastic, refractive, optical transmission, and optical resistance properties are also presented. It is shown that some of these glasses represent efficient acousto-optic materials that are transparent down to the vacuum ultraviolet range and highly resistant to laser radiation.

  7. Synthesis and optical characterization of LiKB4O7, Li2B6O10, and LiCsB6O10 glasses.

    Science.gov (United States)

    Adamiv, V; Teslyuk, I; Dyachok, Ya; Romanyuk, G; Krupych, O; Mys, O; Martynyuk-Lototska, I; Burak, Ya; Vlokh, R

    2010-10-01

    In the current work we report on the synthesis of LiKB(4)O(7), Li(2)B(6)O(10), and LiCsB(6)O(10) borate glasses. The results for their piezo-optic, acousto-optic, acoustic, elastic, refractive, optical transmission, and optical resistance properties are also presented. It is shown that some of these glasses represent efficient acousto-optic materials that are transparent down to the vacuum ultraviolet range and highly resistant to laser radiation.

  8. Exploring Half Metals in Li-based Half Heusler Alloys

    Science.gov (United States)

    Busemeyer, B.; Shaughnessy, M.; Fong, C. Y.

    2011-11-01

    We examine the electronic and magnetic properties of three Li-related half Heusler alloys, namely LiMnN, LiMnP, and LiMnSi in a structure close to the well-known zinc-blende structure in the attempt to search for new half metallic materials. If they do demonstrate half metallic properties, this will open new grounds for finding half metallic spintronic materials. Our results will furnish guidelines for future exploration of alkali-related half metals. Using the primitive cell LiMnSi is a half metal, while the pnictides are not. However when the conventional cell is used, we find that Li3Mn4P4 and Li3Mn4N4 are half metals. The physical reason for these two pnictides to be half metallic and for their magnetic moment per unit cell will be presented.

  9. Li+ ion conductivities in boro-tellurite glasses

    Indian Academy of Sciences (India)

    M Harish Bhat; M Kandavel; Munia Ganguli; K J Rao

    2004-04-01

    Lithium ion conductivity has been investigated in a boro-tellurite glass system, LiCl.LiBO$_{2}\\cdot$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 LiCl clusters appears evident. In the a.c. conductivity and dielectric studies, it is observed that the conductivity mechanism remains the same in all compositions and at all temperatures. A suggestion is made that Li+ ion transport may be driven by bridging oxygen $\\leftrightarrow$ non-bridging oxygen (BO $\\leftrightarrow$ NBO) switching, which is why the two different types of Li+ ions in the clusters and in the neighbourhood of NBOs, do not manifest in the conductivity studies.

  10. 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.

  11. Underpotential deposition of Li in a molten LiCl-Li{sub 2}O electrolyte for the electrochemical reduction of U from uranium oxides

    Energy Technology Data Exchange (ETDEWEB)

    Hur, Jin-Mok; Jeong, Sang Mun; Lee, Hansoo [Korea Atomic Energy Research Institute, Daejeon, 305-353 (Korea)

    2010-05-15

    Reactive metal oxides are conventionally reduced to metal by metallothermic reduction. This paper presents on the efficient reduction method based on the electrochemical reaction in a molten LiCl-Li{sub 2}O electrolyte at 650 C. An underpotential deposition of Li on uranium oxides was observed that enabled the mass electrochemical reduction of U{sub 3}O{sub 8} to U. An advantage of using in-situ generated Li as a reductant is that a high-speed electrochemical reduction could be achieved with a wider operating voltage window when compared to a direct electrochemical reduction. (author)

  12. Thermophysical properties of LiCoO₂-LiMn₂O₄ blended electrode materials for Li-ion batteries.

    Science.gov (United States)

    Gotcu, Petronela; Seifert, Hans J

    2016-04-21

    Thermophysical properties of two cathode types for lithium-ion batteries were measured by dependence on temperature. The cathode materials are commercial composite thick films containing LiCoO2 and LiMn2O4 blended active materials, mixed with additives (binder and carbon black) deposited on aluminium current collector foils. The thermal diffusivities of the cathode samples were measured by laser flash analysis up to 673 K. The specific heat data was determined based on measured composite specific heat, aluminium specific heat data and their corresponding measured mass fractions. The composite specific heat data was measured using two differential scanning calorimeters over the temperature range from 298 to 573 K. For a comprehensive understanding of the blended composite thermal behaviour, measurements of the heat capacity of an additional LiMn2O4 sample were performed, and are the first experimental data up to 700 K. Thermal conductivity of each cathode type and their corresponding blended composite layers were estimated from the measured thermal diffusivity, the specific heat capacity and the estimated density based on metallographic methods and structural investigations. Such data are highly relevant for simulation studies of thermal management and thermal runaway in lithium-ion batteries, in which the bulk properties are assumed, as a common approach, to be temperature independent.

  13. 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.

  14. 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.

  15. Li-Ge-H system: Hydrogenation and structural properties of LiGeHx (0

    Science.gov (United States)

    Pavlyuk, V.; Ciesielski, W.; Kulawik, D.; Prochwicz, W.; Rożdżyńska-Kiełbik, B.

    2016-11-01

    The synthesis, isothermal section at 450 °C of the Li-Ge-H system in the concentration region from 40 at.% Li to 70 at.% Li and structural characterizations of the observed phases are reported. The hydrogenation and structural properties of the LiGeHx (0 < x < 0.25) phase were studied by volumetric analysis and X-ray diffraction. The absorption of hydrogen by LiGe binary compound produce the ternary hydride phase LiGeHx (0 < x < 0.25), thus the volume tetragonal unit cell increases on 1.8 Å3. The LiGeHx solid solution is formed by means of the insertion of hydrogen atoms into tetrahedral voids of parent LiGe structure. The extension of homogeneity range of LiGeHx (0 < x < 0.25) phase and its crystal structure were more precisely refined using X-ray diffraction data. Electronic structure calculations reveal an increased occupation of electronic states at the Fermi level for LiGeHx in comparison to LiGe.

  16. 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. PMID:28094317

  17. Enhanced Performance of Li|LiFePO4 Cells Using CsPF6 as an Electrolyte Additive

    Energy Technology Data Exchange (ETDEWEB)

    Xiao, Liang; Chen, Xilin; Cao, Ruiguo; Qian, Jiangfeng; Xiang, Hongfa; Zheng, Jianming; Zhang, Jiguang; Xu, Wu

    2015-10-20

    The practical application of lithium (Li) metal anode in rechargeable Li batteries is hindered by both the growth of Li dendrites and the low Coulombic efficiency (CE) during repeated charge/discharge cycles. Recently, we have discovered that CsPF6 as an electrolyte additive can significantly suppress Li dendrite growth and lead to highly compacted and well aligned Li nanorod structure during Li deposition on copper substrates. In this paper, the effect of CsPF6 additive on the performance of rechargeable Li metal batteries with lithium iron phosphate (LFP) cathode was further studied. Li|LFP coin cells with CsPF6 additive in electrolytes show well protected Li anode surface, decreased resistance, enhanced rate capability and extended cycling stability. In Li|LFP cells, the electrolyte with CsPF6 additive shows excellent long-term cycling stability (at least 500 cycles) at a charge current density of 0.5 mA cm-2 without internal short circuit. At high charge current densities, the effect of CsPF6 additive becomes less significant. Future work needs to be done to protect Li metal anode, especially at high charge current densities and for long cycle life.

  18. Li-Metal-Free Prelithiation of Si-Based Negative Electrodes for Full Li-Ion Batteries.

    Science.gov (United States)

    Zhou, Haitao; Wang, Xuehang; Chen, De

    2015-08-24

    Most of the high-capacity positive-electrode materials [for example, S, O2 (air), and MOx (M: V, Mn, Fe, etc.)] are Li-deficient and require the use of a Li-metal electrode or prelithiation. Herein, we report a novel electrolytic cell in which the Si electrode can be prelithiated in a well-controlled manner from Li-containing aqueous solution in a Li-metal-free way. MnOx/Si and S/Si Li-ion full cells were assembled by using the prelithiated Si negative electrodes, which resulted in high specific energies of 349 and 732 Wh kg(-1), respectively. The MnOx/Si full cell still retains 138 Wh kg(-1) even at a high specific power of 1710 W kg(-1). This is the first report of a whole process of making a full Li-ion battery with both Li-deficient electrodes without the use of Li metal as the Li source. This novel prelithiation process, with high controllability, no short circuiting, and an abundant Li source, is expected to contribute significantly to the development of safe, green, and powerful Li-ion batteries. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  19. 宁夏水土保持的产业结构影响评价%Impact Evaluation on Industrial Structure of Soil and Water Conservation in Ningxia Hui Automonous Region

    Institute of Scientific and Technical Information of China (English)

    吴启蒙; 朱志玲; 吴咏梅; 王梅梅; 程淑杰; 王重玲

    2012-01-01

    The reasons for soil and water erosion under the different ecological environment and industrial conditions were investigated, which could provide support in theory for the partitioning control of the soil and water erosion in Ningxia Hui Automonous Region. A series of qualitative and quantitative analysis methods were used in this study, such as spatial overlay analysis, integrating expert system and hierarchical cluster analysis. Water conservation, wa- ter and wind erosion control were combined to study the ecosystem service function of soil and water conservation. Meanwhile, the influence of industrial structure on the ecosystem service function of soil and water conservation was evaluated. Based on these analysis, Ningxia Hui Automonous Region was divided into 3 control regions: important, moderately important and unimportant regions of soil and water erosion. The results showed that: the unreasonable tillage and the mode of industrial and mining exploitation could be changed in important regions of soil and water erosion. The relationship between the oasis exploitation and ecological environment should be coordinated well, and ecological engineering construct should proceed actively in the moderately important regions of soil and water erosion. The industrial structure had no significant influence on the soil and water conservation in the unimportant regions. With regard to the bad ecological environment foundation, we should control the growth of the population, implement the transition of the industry actively, and strengthen the governance of geological environment and ecological restoration.%探讨不同生态环境基础和产业条件下的水土流失原因,可为宁夏水土流失分区治理提供理论支持。运用空间叠置、专家集成和系统聚类等定性和定量方法,从水源涵养、防治土壤水力侵蚀和风力侵蚀3个方面分析宁夏水土保持生态系统服务功能,同时评价产业结构对宁夏水土保持生

  20. Action framework for climate change adaptation:an agriculture case in Ningxia Hui nationality autonomous region%气候变化适应行动实施框架——宁夏农业案例实践

    Institute of Scientific and Technical Information of China (English)

    居煇; 陈晓光; 王涛明; 姜帅

    2011-01-01

    Ningxia Hui nationality autonomous region is one of the ecological fragile and poor regions in China, sothis region could be used as representative and model sample for adaptation demonstration of agriculture system in China. According to climate change adaptation action framework,drought risk and water resource shortage will increase in future. At the same time, frequency and intensity of extreme climate events will also strengthen. High efficient water-saving irrigation technology and high efficient planting patterns should be developed in the north, facility agriculture and husbandry in the middle and characteristic agriculture in the south of Ningxia Hui nationality autonomous region in future. People working in meteorology and water resource fields think that adaptation effect will be good, while people in agriculture and forestry fields think it should be considered carefully. The primary criterion for adaptation implementation is to meet with the local and state policies. The second is the cost-effectiveness. Public awareness to climate risk and flexibility of measures requirement are relatively weakened in the course of implementation. In general, meteorological services and planting structure adjustment are preferred adaptation measures. In spite of the traditional and regular technologies such as concrete mulching and water-saving are good,their applications face certain limitations for adaptation implementing in first-class choice.%宁夏是我国生态脆弱区和贫困区之一,以宁夏为例开展农业适应行动实践具有一定的代表性和示范作用.根据气候变化适应行动实施框架,研究结果表明:宁夏未来气候干旱风险将增加,水资源短缺矛盾加剧,极端气候事件频率和强度加大.未来宁夏北部灌区农业应以发展节水灌溉和高效种植为主,中部以设施农业和牧业为主,南部以发展特色农业为主.气象部门和水利部门对适应技术的适应效果持乐观态度,农牧

  1. Synthesis and characterization of Carbon Nano Fiber/LiFePO{sub 4} composites for Li-ion batteries

    Energy Technology Data Exchange (ETDEWEB)

    Bhuvaneswari, M.S.; Bramnik, N.N.; Ensling, D.; Jaegermann, W. [Darmstadt University of Technology, Institute of Materials Science, Petersenstrasse 23, 64287 Darmstadt (Germany); Ehrenberg, H. [Darmstadt University of Technology, Institute of Materials Science, Petersenstrasse 23, 64287 Darmstadt (Germany); IFW Dresden, Institute for Complex Materials, Helmholtzstr, 20, 01069 Dresden (Germany)

    2008-05-15

    Carbon Nano Fibers (CNFs) coated with LiFePO{sub 4} particles have been prepared by a non-aqueous sol-gel technique. The functionalization of the CNFs by HNO{sub 3} acid treatment has been confirmed by Raman and XPS analyses. The samples pure LiFePO{sub 4} and LiFePO{sub 4}-CNF have been characterized by XRD, SEM, RAMAN, XPS and electrochemical analysis. The LiFePO{sub 4}-CNF sample shows better electrochemical performance compared to as-prepared LiFePO{sub 4}. LiFePO{sub 4}-CNF (10 wt.%) delivers a higher specific capacity ({proportional_to}140 mAh g{sup -1}) than LiFePO{sub 4} with carbon black (25 wt.%) added after synthesis ({proportional_to}120 mAh g{sup -1}) at 0.1C. (author)

  2. 宁夏回族女作家马金莲的小说创作论略%Delicate "Farm Work Poetry":a Survey of Novels by Ningxia Hui Nationality Woman Writer MA Jinlian

    Institute of Scientific and Technical Information of China (English)

    王兴文

    2011-01-01

    马金莲是新世纪以来崭露头角并获得宁夏评论界首肯的回族女作家。她的小说以独特的叙述视角观照西海固古老乡土的民间生存,以平淡自然的文风谱写着清丽的"农事诗",并通过对女性生存状况的书写表达自己对女性的人文关怀。随着题材范围的拓展与对西海固人日常生存的深入思考,马金莲在坚持平淡自然的文风的道路上一定会更有建树。%MA Jinlian is a Hui nationality woman writer praised by Ningxia critical circle thanks to the novelty in her novels since the new century.Her novels reflect the folk living of the country of Xi-hai-gu with a unique narrative perspective,compose delicate farm work poetry with a plain and natural writing style,and express her humanistic concern to women through writing the females' survival condition.With the expansion of the writing material and the deep thought about the daily life of the Xi-hai-gu people,Ma Jinlian will make more achievements on the way of insisting on the plain and natural writing style.

  3. 论西北回族民间叙事诗的“三美”精神%On“Three-Beauty”Spirits inside the Folk Narrative Poem Of the Hui Nationality in Northwest China

    Institute of Scientific and Technical Information of China (English)

    刘继辉

    2015-01-01

    Folk narrative poems grow out of the need to make emotional and aesthetic expression in low-class community, which exposes their aesthetic view, value view and world view, manifesting their yearning and expectation to beauty, love, and happy life. Folk narrative poems of the northwestern Hui nationality are the external form to express their pursuing, expressing and revealing the beauty. In the aesthetic form, this style of poery chiefly embodies the sad beauty on love and marriage tragedy;the perfection beauty with the love victory; the sublime beauty of reproducing the heroic epic.These three aesthetic spirits concetrate on the works like“Brother Mawu and Sister GA Dou”,“Purple Flowers”and“Ode to the Hero Bai Yan-hu”.%民间叙事诗产生于下层民众情感发抒、审美体现的需要,表现下层民众的审美观、价值观和世界观,彰显着他们对美、对爱、对幸福生活的向往和期待。西北回族民间叙事诗是他们追求美、表现美、揭示美的外在形式,在审美形态上主要体现为反映爱情婚姻悲剧的“凄美”、寄托爱情胜利的“完美”、再现英雄史诗的“壮美”。这三种美学精神集中地表现在《马五哥与尕豆妹》《紫花儿》《歌唱英雄白彦虎》等作品中。

  4. 微波消解-ICP-AES法测定回汉族人群血清中的微量元素%Determination of serum trace elements of Hui and Han ethnic by ICP-AES after microwave digestion

    Institute of Scientific and Technical Information of China (English)

    李玲; 樊学敏; 靳雅男; 赵燚

    2014-01-01

    The concentration of serum mineral elements of rural residents in Ningxia was determined by ICP-AES in this work. Microwave digestion was used for sample decomposition. By this way, RSD≤3. 5%and the average recoveries were in the range of 90%-117%. The method is simple,rapid,sensitive and accurate for the determination of various elements in the same ser-um. The results show that,there are significant difference between Hui ethnic group and Han ethnic group in 14 elements(P<0. 05) . At the same time,the reasons which caused differences were explained.%本文测定了宁夏农村地区回汉族人群血清中Li、Co、Cd、Ga、Ba、Sr、Cu、Zn、Fe、Al、Se、Sn、B、Mn、Cr、Ni、Pb、Ca、K、Mg、Na、P、S的含量。采用微波消解对样品进行了前处理,使用电感耦合等离子体原子发射光谱法( ICP-AES)进行测定。该方法的RSD≤3.5%,样品加标回收率为90%~117%。该法简便、快速、灵敏、准确,可用于血清中多种元素含量的同时测定。研究结果表明,K、Fe、Cu、Mn、Ni、Ga、Al、Se、Pb、S、Cd、Cr、Sr、Ca这14种元素含量在回族和汉族之间存在着显著性差异(P<0.05),探讨了产生上述差异的原因。

  5. Analysis for phenylalanine hydroxylase gene mutations in 35 ethnic Hui children from Ningxia with phenylketonuria%35例回族苯丙酮尿症患儿苯丙氨酸羟化酶基因突变分析

    Institute of Scientific and Technical Information of China (English)

    毛新梅; 何江; 刘媛; 李晓强; 余伍忠

    2014-01-01

    Objective To determine the type and frequency of phenylalanine hydroxylase gene (PAH) mutations in ethnic Hui patients from Ningxia with phenylketonuria (PKU).Methods For 35 PKU children patients and 50 healthy individuals,all exons and promoters of the PAH gene were analyzed with PCR and direct sequencing.Results Twenty mutations,including 8 missense mutations (40%),5 nonsense mutations (25 %),4 splice site mutations (20 %) and 3 deletion mutants (15 %) were discovered.The overall detection rate was 68.57% (48/70).Common mutations have included R243Q (12.86%),R241C (11.43%),EX6-96A>G (5.71%),Y356X (5.71%),R413P (4.29%) and Q232X (4.29%),whilst rarer ones have included S16fsX10 (2.86%),R111X (2.86%) and L430P (2.86%).Among these,S16fsX10,L430P,D222G and IVS11+1G→A have not been reported previously.Y414X and S303fsX38 have not been reported in Hui ethnic group.No mutation was detected in the 50 normal controls.Conclusion The types and distribution of PAH gene mutations in ethnic Hui from Ningxia have been different from other areas of China.The mutations also showed a rich diversity.%目的 探讨宁夏回族地区苯丙氨酸羟化酶(phenylalanine hydroxylase,PAH)基因突变特点,为该地区苯丙酮尿症(phenylketonuria,PKU)的基因诊断和产前诊断提供依据.方法 应用PCR产物直接测序法,对宁夏地区35例回族PKU患儿和50名正常健康个体的PAH基因第1~13外显子及其旁侧内含子区域进行基因突变分析.结果 共检出20种突变类型,包括错义突变8种(40%)、无义突变5种(25%)、剪切位点突变4种(20%)、缺失突变3种(15%),等位基因突变检出率为68.57%(48/70).最常见的基因突变类型是p.R243Q(12.86%)、p.R241C(11.43%)、EX6-96A>G(5.71%)、p.Y356X(5.71%)、p.R413P(4.29%)和p.Q232X(4.29%);较常见的突变类型为S16fsX10(2.86%)、p.R111X(2.86%)和p.L430P(2.86%).其中S16fsX10、p.L430P、p.D222G和IVS11+1G→A突

  6. LiBOB基电解液在锂离子动力电池中的应用%The application of LiBOB based electrolyte in power Li-ion battery

    Institute of Scientific and Technical Information of China (English)

    连芳; 闫坤; 邢桃峰; 仇卫华

    2011-01-01

    The unique advantages of lithium bis(oxalate) borate (LiBOB) as electrolyte salt for power Li-ion battery and the key problems of LiBOB-based electrolyte were summarized. The review was especially focused on the effect of impurities,optimization of its solvents and the compatibility of LiBOB-based electrolyte with LiMn2O4, LiFePO4 electrodes.%介绍了双草酸硼酸锂(LiBOB)作为锂离子动力电池电解质锂盐的独特优势以及LiBOB基电解液应用中的关键问题.主要针对LiBOB基电解液中杂质影响和溶剂优化,以及与LiMnO、LiFePO正极材料的相容性进行了阐述.

  7. 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.)

  8. 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.

  9. Spectroscopy of Li9Λ by electroproduction

    Science.gov (United States)

    Urciuoli, G. M.; Cusanno, F.; 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.; Bydžovský, 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. Muñoz; 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.; Širca, 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.; Jefferson Lab Hall A Collaboration

    2015-03-01

    Background: In the absence of accurate data on the free two-body hyperon-nucleon interaction, the spectra of hypernuclei provides information on the details of the effective hyperon-nucleon interaction. Purpose: To obtain a high-resolution binding-energy spectrum for the 9Be (e ,e'K+) Li9Λ reaction. Method: Electroproduction of the hypernucleus Li9Λ 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 were added to the Hall A standard equipment. Results: The cross section to low-lying states of Li9Λ is concentrated within 3 MeV of the ground state and can be fit 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. The Λ separation energy, BΛ, of 8.36 ±0.08 (stat.) ±0.08 (syst.) MeV was measured, in agreement with an earlier experiment.

  10. 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.

  11. CuLi2Sn and Cu2LiSn: Characterization by single crystal XRD and structural discussion towards new anode materials for Li-ion batteries

    Science.gov (United States)

    Fürtauer, Siegfried; Effenberger, Herta S.; Flandorfer, Hans

    2014-12-01

    The stannides CuLi2Sn (CSD-427095) and Cu2LiSn (CSD-427096) were synthesized by induction melting of the pure elements and annealing at 400 °C. The phases were reinvestigated by X-ray powder and single-crystal X-ray diffractometry. Within both crystal structures the ordered CuSn and Cu2Sn lattices form channels which host Cu and Li atoms at partly mixed occupied positions exhibiting extensive vacancies. For CuLi2Sn, the space group F-43m. was verified (structure type CuHg2Ti; a=6.295(2) Å; wR2(F²)=0.0355 for 78 unique reflections). The 4(c) and 4(d) positions are occupied by Cu atoms and Cu+Li atoms, respectively. For Cu2LiSn, the space group P63/mmc was confirmed (structure type InPt2Gd; a=4.3022(15) Å, c=7.618(3) Å; wR2(F²)=0.060 for 199 unique reflections). The Cu and Li atoms exhibit extensive disorder; they are distributed over the partly occupied positions 2(a), 2(b) and 4(e). Both phases seem to be interesting in terms of application of Cu-Sn alloys as anode materials for Li-ion batteries.

  12. Electrochemical Formation of Al-Li Alloys by Codeposition of Al and Li from LiCl-KCl-AlF3 Melts at 853 K

    Institute of Scientific and Technical Information of China (English)

    SUN Yi; ZHANG Mi-lin; HAN Wei; LI Mei; YANG Yu-sheng

    2013-01-01

    The electrochemical behavior of Al(Ⅲ) ions was studied in molten LiCl-KCl melts on a molybdenum electrode.Cyclic voltammetry,chronopotentiometry and chronoamperometry were used to explore the deposition mechanism of Al and Li.Cyclic voltammetry expriment indicates that under potential deposition(UPD) of lithium on pre-deposited aluminium led to the formation of liquid Al-Li alloys at 853 K.The diffusion coefficient of Al(Ⅲ) ions at 853 K in LiCl-KCl-AlF3(1%,mass fraction) melts was determined to be (2.79±0.05)× 10-5 cm2/s.Chronopotentiograms and chronoamperograms demonstrate that the codeposition of Al(Ⅲ) and Li(Ⅰ) ions formed Al-Li alloys at cathodic current densities higher than-0.28 A/cm2 or cathodic potentials more negative than-2.20 V.X-Ray diffraction(XRD) pattern indicates that Al-Li alloys with different phases formed via galvanostatic electrolysis.Inductively coupled plasma(ICP) analyses of the samples obtained by electrolysis show that lithium and aluminium contents of Al-Li alloys could be controlled by AlF3 concentration and current intensity.

  13. Nanoparticle shapes of LiMnPO4, Li+ diffusion orientation and diffusion coefficients for high volumetric energy Li+ ion cathodes

    Science.gov (United States)

    Kwon, Nam Hee; Yin, Hui; Vavrova, Tatiana; Lim, Jonathan H.-W.; Steiner, Ullrich; Grobéty, Bernard; Fromm, Katharina M.

    2017-02-01

    Nanoparticles of LiMnPO4 were fabricated in rod, elongated as well as cubic shapes. The 1D Li+ preferred diffusion direction for each shape was determined via electron diffraction spot patterns. The shape of nano-LiMnPO4 varied the diffusion coefficient of Li+ because the Li+ diffusion direction and the path length were different. The particles with the shortest dimension along the b-axis provided the highest diffusion coefficient, resulting in the highest gravimetric capacity of 135, 100 and 60 mAh g-1 at 0.05C, 1C and 10C, respectively. Using ball-milling, a higher loading of nano-LiMnPO4 in the electrode was achieved, increasing the volumetric capacity to 263 mAh cm-3, which is ca. 3.5 times higher than the one obtained by hand-mixing of electrode materials. Thus, the electrochemical performance is governed by both the diffusion coefficient of Li+, which is dependent on the shape of LiMnPO4 nanoparticles and the secondary composite structure.

  14. Characterizing Lava Flows With LiDAR

    Science.gov (United States)

    Deligne, N. I.; Cashman, K. V.; Deardorff, N.; Dietterich, H. R.; House, P. K.; Soule, S.

    2009-12-01

    Digital elevation models (DEMs) have been used in volcanology in predictive modeling of lava flow paths, both for assessment of potential hazards and specific predictions of lava flow paths. Topographic analysis of a lava flow is potentially useful for mapping and quantifying flow surface morphologies, which in turn can be used to determine flow emplacement conditions, such as effusion rate, steadiness of flow, and interactions with pre-existing topography and surface water. However, this has been limited in application because of the coarse resolution of most DEMs. In recent years, use of Light Detection and Ranging (LiDAR) airborne laser altimetry, capable of producing high resolution (≤ 1 meter) DEMs, has become increasingly common in the geomorphic and mapping community. However, volcanologists have made little use of airborne LiDAR. Here we compare information obtained using field observations and standard (10 meter) DEMs against LiDAR high resolution DEMs to assess the usefulness, capabilities, and limitations of LiDAR as applicable to lava flows. We compare morphologic characteristics of five lava flows of different compositions, tectonic settings, flow extents, slopes, and eruption duration: (1) 1984 Mauna Loa lava flow, Hawaii; (2) December 1974 Kilauea lava flow, Hawaii; (3) c. 1600 ybp Collier Cone lava flow, central Oregon Cascades; (4) Holocene lava flows from the Sand Mountain volcanic chain, central Oregon Cascades; and (5) Pleistocene lava flows along the Owyhee River, eastern Oregon basin and range. These lava flows range in composition from basalt to andesite, and have eruption durations ranging from 6 hours (observed) to years (inferred). We measure channel width, levee and flow front heights, compression ridge amplitude, wavelength and tumuli dimensions, and surface roughness. For all but the smallest scale features, LiDAR is easily used to quantify these features, which often is impossible or technically challenging to do in the field, while

  15. LiFePO 4 water-soluble binder electrode for Li-ion batteries

    Science.gov (United States)

    Guerfi, A.; Kaneko, M.; Petitclerc, M.; Mori, M.; Zaghib, K.

    A new water-soluble elastomer from ZEON Corp. was evaluated as binder with LiFePO 4 cathode material in Li-ion batteries. The mechanical characteristic of this cathode was compared to that with PVdF-based cathode binder. The elastomer-based cathode shows high flexibility with good adhesion. The electrochemical performance was also evaluated and compared to PVdF-based cathodes at 25 and at 60 °C. A lower irreversible capacity loss was obtained with the elastomer-based cathode, however, aging at 60 °C shows a comparable cycle life to that observed with PVdF-based cathodes. The LiFePO 4-WSB at high rate shows a good performance with 120 mAh g -1 at 10 C rate at 60 °C.

  16. LiFePO{sub 4} water-soluble binder electrode for Li-ion batteries

    Energy Technology Data Exchange (ETDEWEB)

    Guerfi, A.; Petitclerc, M.; Zaghib, K. [Institut de Recherche d' Hydro-Quebec, 1800 Lionel-Boulet, Varennes, Que. J3X 1S1 (Canada); Kaneko, M.; Mori, M. [ZEON Corporation, R and D Center, 1-2-1 Yako, Kawasaki, Kanagawa 210-9507 (Japan)

    2007-01-01

    A new water-soluble elastomer from ZEON Corp. was evaluated as binder with LiFePO{sub 4} cathode material in Li-ion batteries. The mechanical characteristic of this cathode was compared to that with PVdF-based cathode binder. The elastomer-based cathode shows high flexibility with good adhesion. The electrochemical performance was also evaluated and compared to PVdF-based cathodes at 25 and at 60{sup o}C. A lower irreversible capacity loss was obtained with the elastomer-based cathode, however, aging at 60{sup o}C shows a comparable cycle life to that observed with PVdF-based cathodes. The LiFePO{sub 4}-WSB at high rate shows a good performance with 120mAhg{sup -1} at 10C rate at 60{sup o}C. (author)

  17. Coincidence in the two-photon spectra of Li and Li2 at 735 nm

    Science.gov (United States)

    DeGraffenreid, W.; Sansonetti, Craig J.

    2005-02-01

    A coincidence between the 22S1/2-32S1/2 two-photon transition in the atomic spectrum of 6Li and the X 1Σ+g→ E 1Σ+g two-photon ro-vibrational series of 7Li2 was observed near 735 nm in a heat pipe oven using a tunable laser and thermionic diode detection scheme. The molecular transition obscures one component of the 6Li atomic transition. Selective detection of the atomic transition was obtained by adding an intensity-modulated laser that drives atoms from the 3S to 16P state. The coincident molecular transition and four nearby molecular lines were identified using previously determined Dunham coefficients.

  18. 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.

  19. Relation of metabolic syndrome with plasma adiponectin level and gene polymorphism in Ningxia Hui subjects%宁夏回族代谢综合征与脂联素水平及基因多态性的相关性研究

    Institute of Scientific and Technical Information of China (English)

    沈佳; 武海亮; 刘雅娟; 曹相原; 马晓薇; 荆忻; 杨锐英

    2013-01-01

    Objective To study the relation of metabolic syndrome with plasma adiponectin level and mononucleotide polymorphisms at SNP45T/G and 276G/T in Ningxia Hui subjects .Methods Three hundred and five Hui subjects from Ningxia Hui Autonomous Region with no genetic relationship and interracial marriage in 3 generations were divided into metabolic syndrome group (n=207) and control group(n= 98) .Their plasma adiponectin level was measured by ELISA and their gene polymorphisms at SNP45T/G and 276G/T were detected by PCR-RFLP .Results The body mass index ,waist/hip ratio ,systolic blood pressure ,and diastolic blood pressure ,plasma levels of adiponectin ,fasting blood glucose and insulin , TG , TC , LDL-C were significantly higher whereas the plasma HDL-C level was significantly lower in metabolic syndrome group than in control group(P<0 .05 ,P<0. 01).The frequencies of genotypes at SNP+45 TG+GG and G al-leles were significantly higher while those of TT genes and T alleles were significantly lower in metabolic syndrome group than in control group ( P<0 .01) .Multivariate logistic regression analysis showed that the gene polymorphisms at SNP+45T/G were the risk factors for metabolic syndrome in Hui subjects .Conclusion The adiponectin level is lower in Hui metabolic syndrome patients .The risk to develop metabolic syndrome increases in Hui subjects carrying SNP + 45G alleles .%目的 探讨脂联素水平及其单核苷酸多态性(SNP+45T/G和SNP+276G/T) 2个位点与宁夏回族代谢综合征(MS)的关系.方法 选择祖居宁夏、无亲缘关系、3代内无异族通婚史的回族个体共305例,分为MS组207例和对照组98例;应用ELISA及PCR-RFLP技术检测血浆脂联素水平及其2个位点的SNP.结果 与对照组比较,MS组体重指数、腰臀比、收缩压、舒张压、空腹血糖、空腹胰岛素、TG、LDL-C、胰岛素抵抗指数明显升高,TC、HDL-C、脂联素水平明显降低,差异有统计学意义(P<0.05,P<0.01).与对照组比较,MS

  20. The Spectral Properties of Zn doped LiNbO3 Crystals%掺锌LiNbO3晶体的光谱性质

    Institute of Scientific and Technical Information of China (English)

    赵业权; 徐悟生; 朱质彬; 张玥; 徐蔚青; 王继扬

    2000-01-01

    LiNbO3中掺进2 mol%,4 mol%,6 mol%,8 mol%的ZnO,生长Zn(2 mol%):LiNbO3,Zn(4 mol%):LiNbO3,Zn(6 mol%):LiNbO3和Zn(8 mol%):LiNbO3晶体,测试LiNbO3和掺锌LiNbO3晶体的透射光谱.LiNbO3和掺锌LiNbO3晶体在350-900 nm的范围内都是透明的.Zn:LiNbO3晶体的吸收边发生紫移.对Zn:LiNbO3晶体吸收边紫移的机理进行探讨.

  1. Reoxidation of uranium metal immersed in a Li2O-LiCl molten salt after electrolytic reduction of uranium oxide

    Science.gov (United States)

    Choi, Eun-Young; Jeon, Min Ku; Lee, Jeong; Kim, Sung-Wook; Lee, Sang Kwon; Lee, Sung-Jai; Heo, Dong Hyun; Kang, Hyun Woo; Jeon, Sang-Chae; Hur, Jin-Mok

    2017-03-01

    We present our findings that uranium (U) metal prepared by using the electrolytic reduction process for U oxide (UO2) in a Li2O-LiCl salt can be reoxidized into UO2 through the reaction between the U metal and Li2O in LiCl. Two salt types were used for immersion of the U metal: one was the salt used for electrolytic reduction, and the other was applied to the unused LiCl salts with various concentrations of Li2O and Li metal. Our results revealed that the degree of reoxidation increases with the increasing Li2O concentration in LiCl and that the presence of the Li metal in LiCl suppresses the reoxidation of the U metal.

  2. 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.

  3. 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)

  4. Phase Diagrams for the PEO-LiX Electrolyte System.

    Science.gov (United States)

    1987-01-01

    rather flat, in sharp contrast to previous results. 3.2c PEO- LiBF4 System Pure PEO forms complexes with LiBF , and the subsequent phase diagram for...study; 0 ----NMR(15); 0 -DSC or DTA(7, 10,12); A ---a.c.conductivity(6,10,12); 4- optical microscopy(6). is 350 - (PEO) n- LiBF4 300 (PEO) n-LiCF 3SO 3...the PEO- LiBF4 system IS" , " ATOM RATIO O/Li 50 25 8 4 2 1 250 200 150 1 00 -50I 0 0 0.1 0.2 0.3 0.4 0.5 XLiPF6 -’+’ Figure 6. Phase diagram of the

  5. Mobilities of Li(+)-attached butanol isomers in He gas.

    Science.gov (United States)

    Takahashi, K; Saito, K; Koizumi, T; Matoba, S; Kojima, T M; Tanuma, H; Shiromaru, H

    2013-08-28

    Mobilities of Li(+)-attached butanol isomers, (n-BuOH)Li(+), (s-BuOH)Li(+), (i-BuOH)Li(+), and (t-BuOH)Li(+), in helium gas were measured over a range of reduced electric fields (E/N = 25-96 Td) at room temperature. Arrival time measurements accurately identified small differences in the measured mobilities of the isomer ions. At low E/N (≤30 Td, corresponding to a mean collision energy ε≤0.05 eV), (n-BuOH)Li(+) showed a mobility about 1.5% greater than that of the other ions, but at high E/N (≥75 Td, ε≥0.1 eV) its mobility was about 1.1% less.

  6. 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.

  7. 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)

  8. Li-Ion Cell Development for Low Temperature Applications

    Science.gov (United States)

    Huang, C.-K.; Sakamoto, J. S.; Surampudi, S.; Wolfenstine, J.

    2000-01-01

    JPL is involved in the development of rechargeable Li-ion cells for future Mars Exploration Missions. The specific objectives are to improve the Li-ion cell cycle life performance and rate capability at low temperature (Li-ion rate capability at low temperature has been attributed to: (1) the electrolytes becoming viscous or freezing and/or (2) reduced electrode capacity that results from decreased Li diffusivity. Our efforts focus on increasing the rate capability at low temperature for Li-ion cells. In order to improve the rate capability we evaluated the following: (1) cathode performance at low temperatures, (2) electrode active material particle size on low temperature performance and (3) Li diffusivity at room temperature and low temperatures. In this paper, we will discuss the results of our study.

  9. Li overlayer formation, oxidation and sputtering characteristics of Al-Li alloys and W/Al-Li composites for fusion applications

    Energy Technology Data Exchange (ETDEWEB)

    Krauss, A.R. (Argonne National Lab., IL (USA)); DeWald, A.B.; Scott, P.; Savage, H. (Corium Industries, Inc., Atlanta, GA (USA))

    1990-01-01

    The next generation of long pulse fusion devices will impose severe requirements on the properties of plasma-facing materials. In devices such as ITER, a divertor design is being considered, using a divertor plate which would be either tungsten or a low-Z material such as graphite or beryllium. Strongly segregating lithium alloys have been proposed as a means of producing a self-sustaining low-Z overlayer which lowers plasma Z{sub eff} and resists self-sputtering. Aluminum-lithium alloys are among the better-characterized lithium-bearing alloys, and it has been demonstrated that lithium segregates strongly in aluminum. However, aluminum has a relatively low melting point, and for low lithium concentrations, the lithium diffusion rate is too slow to replenish lithium at the rate at which it is eroded by the incoming plasma. It has been suggested previously that the superionic {beta} phase Al-Li alloy (48--54 at. % Li) should have high enough diffusivity to be able to replenish surface lithium, and that incorporation of the {beta}-phase AlLi in a composite with tungsten would provide high temperature strength and melt layer stability, along with significantly better thermal conductivity than pure tungsten. Such a composite has been fabricated, as well as a variation containing titanium as a means of controlling oxidation at grain boundaries. The Li overlayer formation, erosion, and replenishment are characterized for the {beta}-phase LiAl alloy, and W-AlLi and W-Ti-AlLi composites. It is found that if there is no oxide layer to inhibit the Li segregation, Li diffusion is extremely rapid, and an oxygen-free Li overlayer is formed which is stable under continuous ion beam sputtering. 21 refs., 7 figs.

  10. Study of vaporization of LiI, LiI/C70, LiI/LiF/C70 from the Knudsen cell located into ionization chamber of the mass spectrometer

    Directory of Open Access Journals (Sweden)

    Đustebek Jasmina

    2014-01-01

    Full Text Available The vaporization of LiI, LiI/C70 and LiI/LIF/C70 were studied using a Knudsen cell located into ionization chamber of a magnetic sector mass spectrometer in a temperature range from 350 ˚C to 850 ˚C. Аs the ion species, LinI+ (n = 2, 3, 4, and 6 were identified from a mixture LiI/C70. While the clusters LinI+ and LinF+ (n = 2 - 6 were detected from a mixture LiI/LiF/C70. The intensities of LinI+ were higher than the emission of LinF+ cluster when the ratio of LiI to LiF was 2:1. By contrast, the emission of the LinF+ is favored when the ratio of LiI to LiF was 1:2. These results show that the vaporization of a mixture LiI/LIF/C70 from the Knudsen cell located into ionization chamber of the mass spectrometer represents an efficient and simple way to obtain and investigate clusters of the type LinX, X-F, I. In this work it has also been shown that the trend of the ln (Intensity, arbit. units versus temperature for all LinI+ clusters before and after the melting point of LiI was not same. It suggested that the way of the formation of these clusters can be different due to changes in temperature. [Projekat Ministarstva nauke Republike Srbije, br. 172019

  11. The impact of nanomaterials on Li-ion rechargeable batteries

    Energy Technology Data Exchange (ETDEWEB)

    Liu, H.K.; Wang, G.X.; Guo, Z.P.; Wang, J.Z.; Konstantinov, K. [Wollongong Univ., Wollongong, NSW (Australia). Inst. for Superconducting and Electronic Materials, ARC Centre of Excellence for Electromaterials Science

    2006-07-01

    Nanotechnology is now being considered for use in lithium (Li) secondary batteries. This study investigated the impact of various nanomaterials on Li rechargeable battery performance. The study included an evaluation of carbon nanotubes (CNTs); NiO and WS{sub 2} nanotubes; Sn, si, Cu{sub 6}Sn{sub 5}, Si-C, Si mesocarbon microbeads; Si-TiC, Si-PPY and multiwalled nanotubes and Sn/SnNi nano-composites. Nanoparticles dispersed in polymer electrolytes in the Li secondary batteries were also investigated. Phase-pure compounds were prepared using sol-gel synthesis. A layer of carbon was coated on the surface of the Li crystals. Nanoparticles were dispersed in polymer electrolytes of polyethylene oxide (PEO). When NiSi was used in the Li cells, it provided a high lithium storage capacity in the initial discharge, during which Si acted as an active element to combine with Li to form Li{sub x}Si. Nano-Si-MCMB anodes showed superior performance. MCMB graphite was almost dimensionally invariable during Li insertion and extraction. The phase-pure Li compounds prepared by sol-gel fabrication methods significantly enhanced the electronic conductivity, and the Ti-doped and undoped Li iron phosphates demonstrated a stable discharge capacity. Results of the study showed that nanoparticle-dispersed polymer electrolytes that were smaller in size influenced the crystallization kinetics of the PEO polymer chains. High-energy ball milling lowered the glass transition temperature of the composite polymers, and increased the ionic conductivity by more than an order of magnitude when compared with the unmilled samples. It was concluded that the highest ionic conductivity was achieved when using LiPF{sub 6} as an added Li salt, and Al{sub 2}O{sub 3} as a dispersed particle. 8 refs., 2 figs.

  12. The interaction of 11Li with 208Pb

    CERN Document Server

    Vinodkumar, A M; Yanez, R; Leonard, M; Yao, L; Bricault, P; Dombsky, M; Kunz, P; Lassen, J; Morton, A C; Ottewell, D; Preddy, D; Trinczek, M

    2012-01-01

    Background: 11Li is one of the most studied halo nuclei. The fusion of 11Li with 208Pb has been the subject of a number of theoretical studies with widely differing predictions, ranging over four orders of magnitude, for the fusion excitation function. Purpose: To measure the excitation function for the 11Li + 208Pb reaction. Methods: A stacked foil/degrader assembly of 208Pb targets was irradiated with a 11Li beam producing center of target beam energies from above barrier to near barrier energies (40 to 29 MeV). The intensity of the 11Li beam (chopped) was 1250 p/s and the beam on-target time was 34 hours. The alpha-decay of the stopped evaporation residues was detected in a alpha-detector array at each beam energy in the beam-off period (the beam was on for <= 5 ns and then off for 170 ns). Results: The 215At evaporation residues were associated with the fusion of 11Li with 208Pb. The 213,214At evaporation residues were formed by the breakup of 11Li into 9Li + 2n, with the 9Li fusing with 208Pb. The 214...

  13. 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.

  14. 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.

  15. Prediction of superconductivity in Li-intercalated bilayer phosphorene

    Energy Technology Data Exchange (ETDEWEB)

    Huang, G. Q. [Department of Physics, Nanjing Normal University, Nanjing 210023 (China); National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China); Xing, Z. W., E-mail: zwxing@nju.edu.cn [National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China); Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China); Xing, D. Y. [National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China); Collaborative Innovation Center of Advanced Microstructures and Department of Physics, Nanjing University, Nanjing 210093 (China)

    2015-03-16

    It is shown that bilayer phosphorene can be transformed from a direct-gap semiconductor to a BCS superconductor by intercalating Li atoms. For the Li-intercalated bilayer phosphorene, we find that the electron occupation of Li-derived band is small and superconductivity is intrinsic. With increasing the intercalation of Li atoms, both increased metallicity and strong electron-phonon coupling are favorable for the enhancement of superconductivity. The obtained electron-phonon coupling λ can be larger than 1 and the superconducting temperature T{sub c} can be increased up to 16.5 K, suggesting that phosphorene may be a good candidate for a nanoscale superconductor.

  16. The Role of Lithium Passivation in LiSO2

    Science.gov (United States)

    1986-12-29

    studied by mass spectrometry and scanning kuger spectroscopy. Abraham and Chaudhri (6) used IR and XPS techniques to study lithiu.i films from aged and...Lpeclfic conductivity of about 10-9 (ohm-cm)- 1 for the Li passivation layer. Peled (9) developed a model tc describe the film formation in the Li...the Li corrosion products precipitate to form the primary passivation layer. In analogy with the model put forth by Peled (9) for the Li/SOC1 2 couple

  17. Georeferenced LiDAR 3D Vine Plantation Map Generation

    OpenAIRE

    Meritxell Queraltó; Jordi Llop; Emilio Gil; Jordi Llorens

    2011-01-01

    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 LiD...

  18. Synthesis and electrochemical performances of LiCoO2 recycled from the incisors bound of Li-ion batteries

    Institute of Scientific and Technical Information of China (English)

    LI Jinhui; ZHONG Shengwen; XIONG Daoling; CHEN Hao

    2009-01-01

    A new LiCoO2 recovery technology for Li-ion batteries was studied in this paper. LiCoO2 was peeled from the Al foil with dimethyl acetamide (DMAC), and then polyvinylidene fluoride (PVDF) and carbon powders in the active material were eliminated by high tempera-1.00. The new LiCoO2 was obtained by calcining the mixture at 850℃ for 12 h in air. The structure and morphology of the recycled powders and resulting samples were studied by XRD and SEM techniques, respectively. The layered structure of LiCoO2 synthesized by adding Li2CO3 is the best, and it is found to have the best characteristics as a cathode material in terms of charge-discharge capacity and cycling mAh.g-1.

  19. 基于TerraScan的LiDAR数据处理%LiDAR' Data Processing Based on TerraScan

    Institute of Scientific and Technical Information of China (English)

    黄金浪

    2007-01-01

    介绍LiDAR技术的国内外发展情况,围绕LiDAR数据后处理软件TerraScan的应用,详细论述该软件的数据处理流程,特别针对LiDAR数据特点和处理技术难点提出笔者的看法.

  20. Li/SO2 cells and Li/SOCl2 cells: Safe use and testing

    Science.gov (United States)

    Wagner, C. G.

    1992-05-01

    Most lithium/sulfur dioxide (Li/SO2) cells and lithium/thionyl chloride (Li/SOCl2)) cells have pressure relief safety devices called vents built into them. These vents are designed to open under conditions of increasing internal cell pressure. The likelihood of cell venting has been reduced to very low levels by optimizing cell designs. If fully developed Li/SO2 cells or Li/SOCl2 cells (or batteries) are discharged within the intended design limits, they are essentially nonhazardous. In addition, the consequences of cell ventings are being minimized by use of appropriate absorbant materials and protective coatings. During battery assembly and test, detection and monitoring equipment is used to sense the presence of vented gases. Tester data analysis techniques have been developed to foresee either an increasing likelihood of a vent or the presence of a vented cell. Standard cleanup procedures have been developed to safely decontaminate the assembly or test area following a cell vent.

  1. Systematic Phase Diagram of LiSi and LiAl compounds from Minima Hopping Method

    Science.gov (United States)

    Romero, Aldo; Marques, Miguel; Botti, Silvana; Sarmiento-Pérez, Rafael; Valencia-Jaime, Irais; Amsler, Max; Goedecker, Stefan

    2014-03-01

    We performed an extensive theoretical exploration of the structural phase diagram of LiSi and LiAl alloys through global structural prediction. These compounds have very interesting properties. For example, LiSi alloys have been considered for high energy density anodes for future rechargeable battery technology, while LiAl alloys are expected to have applications in the field of structural components due to its light weight and maleability. The global structural prediction was performed with the minima hopping method. In this method the low energy structures are obtained by solving a set of dynamical equations of motion that allows efficient visits to local minima on the Born Oppenheimer surface. We found very good agreement between our simulations and previously reported stoichiometries. Moreover, we were able to identify several novel thermodynamically stable compositions that have not been previously synthesized. The ground-state structures were further characterized both structurally and electronically. Our calculations show that global structural prediction is a very powerful tool to predict new thermodynamically stable materials, and that it consistently outperforms other methods commonly used. Support from ACS-PRF #54075-ND10 is recognized.

  2. Impedance Simulation of a Li-Ion Battery with Porous Electrodes and Spherical Li+ Intercalation Particles

    NARCIS (Netherlands)

    Huang, R.W.J.M.; Chung, F.; Kelder, E.M.

    2006-01-01

    We present a semimathematical model for the simulation of the impedance spectra of a rechargeable lithium batteries consisting of porous electrodes with spherical Li+ intercalation particles. The particles are considered to have two distinct homogeneous phases as a result of the intercalation and

  3. 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,...

  4. Impedance Simulation of a Li-Ion Battery with Porous Electrodes and Spherical Li+ Intercalation Particles

    NARCIS (Netherlands)

    Huang, R.W.J.M.; Chung, F.; Kelder, E.M.

    2006-01-01

    We present a semimathematical model for the simulation of the impedance spectra of a rechargeable lithium batteries consisting of porous electrodes with spherical Li+ intercalation particles. The particles are considered to have two distinct homogeneous phases as a result of the intercalation and de

  5. Formation of ultracold LiCs molecules

    CERN Document Server

    Kraft, S D; Lange, J; Vogel, L; Wester, R; Weidemüller, M; Kraft, Stephan D.; Staanum, Peter; Lange, Joerg; Vogel, Leif; Wester, Roland; Weidemueller, Matthias

    2006-01-01

    We present the first observation of ultracold LiCs molecules. The molecules are formed in a two-species magneto-optical trap and detected by two-photon ionization and time-of-flight mass spectrometry. The production rate coefficient is found to be in the range $10^{-18}\\unit{cm^3s^{-1}}$ to $10^{-16}\\unit{cm^3s^{-1}}$, at least an order of magnitude smaller than for other heteronuclear diatomic molecules directly formed in a magneto-optical trap.

  6. Practical Methods in Li-ion Batteries

    DEFF Research Database (Denmark)

    Barreras, Jorge Varela

    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......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...

  7. 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...

  8. An atomic beam of 6Li — 7Li for high resolution spectroscopy from matrix isolation sublimation

    Science.gov (United States)

    Oliveira, A. N.; Sacramento, R. L.; Silva, B. A.; Uhlmann, F. O.; Wolff, W.; Cesar, C. L.

    2016-07-01

    We propose the Matrix Isolation Sublimation (MlSu) technique for generating cold lithium atoms for the measurement of the 6Li - 7Li isotope shift in D1 and D2 transitions. The technique is capable of generating cold 6Li and 7Li beams at 4 K with forward velocity of 125 m/s. Using this beam we offer a distinguished source of lithium atoms for transitions measurements, adding a new possibility to make high resolution spectroscopy towards improving the experimental checks of the theory.

  9. 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

    2015-11-06

    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.

  10. Defect Structure of Li-Doped BPO 4: A Nanostructured Ceramic Electrolyte for Li-Ion Batteries

    Science.gov (United States)

    Jak, M. J. G.; Kelder, E. M.; Schoonman, J.

    1999-01-01

    In this paper the defect chemistry of Li-doped BPO4(BPO4-xLi2O, 0≤x≤0.1) is studied. This nanostructured ceramic electrolyte is used in all-solid-state Li-ion batteries. By changing the Li-doping level the influence on the crystal structure is studied and related to t he properties of the material. X-ray diffraction, Fourier-transformed infra-red spectroscopy (FT-IR),31P,11B, and7Li magic-angle-spinning solid state nuclear magnetic resonance, neutron diffraction, and inductively coupled plasma optical-emission spectroscopy measurements are used in order to study the structure. The electrical properties are studied with AC-impedance spectroscopy (AC-IS). The experimental data show that the defect structure of Li-doped BPO4can be described with two defect models, Li″B+2Li·iand V‴B+3Li·i, suggesting that the ionic conductivity takes place via interstitial Li ions.

  11. Li2CuVO4: A high capacity positive electrode material for Li-ion batteries

    Science.gov (United States)

    Ben Yahia, Hamdi; Shikano, Masahiro; Yamaguchi, Yoichi

    2016-07-01

    The new compound Li2CuVO4 was synthesized by a solid state reaction route, and its crystal structure was determined from single crystal X-ray diffraction data. Li2CuVO4 was characterized by galvanometric cycling, cycle voltammetry, and electrochemical impedance spectroscopy. The structure of Li2CuVO4 is isotypic to Pmn21-Li3VO4. It can be described as a disordered wurtzite structure with rows of Li1/Cu1 atoms alternating with rows of (Li2/Cu2)-V-(Li2/Cu2) atoms along [100]. All cations are tetrahedrally coordinated. The lithium and copper atoms are statistically disordered over two crystallographic sites. The electrochemical cycling between 2.0 and 4.7 V indicates that almost two lithium atoms could be extracted and re-intercalated. This delivers a maximum discharge capacity of 257 mA h g-1 at a C/50 rate (theoretical capacity = 139 mA h g-1 for one lithium). Li2CuVO4 shows also high rate capability with a capacity of 175 mA h g-1 at 1C rate. This demonstrates that Cu-based compounds can be very interesting as electrodes for Li-ion batteries if Cu-dissolution is avoided.

  12. Synthesis and electrochemical performances of spherical LiFePO4 cathode materials for Li-ion batteries

    Institute of Scientific and Technical Information of China (English)

    ZHOU Jianxin; SHEN Xiangqian; JING Maoxiang; ZHAN Yun

    2006-01-01

    Spherical LiFePO4 and LiFePO4/C composite powders for lithium ion batteries were synthesized by a novel processing route of co-precipitation and subsequent calcinations in a nitrogen and hydrogen atmosphere. The precursors of LiFePO4, LiFePO4/C composite and the resultant products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), and the electrochemical performances were investigated by galvanostatic charge and discharge tests. The precursors composed of amorphous Fe3(PO4)2·xH2O and crystalline Li3PO4 obtained in the co-precipitation processing have a sphere-like morphology. The spherical LiFePO4 derived from the calcinations of the precursor at 700 ℃ for 10 h in a reduction atmosphere shows a discharge capacity of 119 mAh·g -1 at the C/10 rate, while the LiFePO4/C composite with 10wt.% carbon addition exhibits a discharge capacity of 140 mAh·g -1.The electrochemical performances indicate that the LiFePO4/C composite has a higher specific capacity and a more stable cycling performance than the bare olivine LiFePO4 due to the carbon addition enhancing the electronic conductivity.

  13. Coulomb dissociation and momentum distributions for [sup 11]Li [yields] [sup 9]Li + n + n breakup reactions

    Energy Technology Data Exchange (ETDEWEB)

    Esbensen, H.

    1993-01-01

    Momentum distributions for the [sup 11]Li [yields] [sup 9]Li+n+n breakup reaction, generated by Coulomb dipole excitations, axe calculated in a 3-body model for [sup 11]Li. The relative momentum distribution of the two neutrons is in good agreement with recent 3-body coincidence measurements but the momentum distribution for the [sup 9]Li recoil and the decay energy spectrum are much narrower than observed. These discrepancies may be due to higher order dynamical effects which have been ignored.

  14. Coulomb dissociation and momentum distributions for {sup 11}Li {yields} {sup 9}Li + n + n breakup reactions

    Energy Technology Data Exchange (ETDEWEB)

    Esbensen, H.

    1993-03-01

    Momentum distributions for the {sup 11}Li {yields} {sup 9}Li+n+n breakup reaction, generated by Coulomb dipole excitations, axe calculated in a 3-body model for {sup 11}Li. The relative momentum distribution of the two neutrons is in good agreement with recent 3-body coincidence measurements but the momentum distribution for the {sup 9}Li recoil and the decay energy spectrum are much narrower than observed. These discrepancies may be due to higher order dynamical effects which have been ignored.

  15. Electrodeposition of Mg-Li-Al-La Alloys on Inert Cathode in Molten LiCl-KCl Eutectic Salt

    Science.gov (United States)

    Han, Wei; Chen, Qiong; Sun, Yi; Jiang, Tao; Zhang, Milin

    2011-12-01

    Electrochemical preparation of Mg-Li-Al-La alloys on inert electrodes was investigated in LiCl-KCl melt at 853 K (580 °C). Cyclic voltammograms (CVs) and square wave voltammograms (SWVs) show that the existence of AlCl3 or AlF3 could promote La deposition on an active Al substrate, which is predeposited on inert electrodes. All electrochemical tests show that the reduction of La3+ is a one-step reduction process with three electrons exchanged. The reduction of La(III)→La(0) occurred at -2.04 V, and the underpotential deposition (UPD) of La was detected at -1.55 V ( vs Ag/AgCl). The same phenomena concerning La UPD were observed on two inert cathodes, W and Mo. In addition, Mg-Li-Al-La alloys were obtained by galvanostatic electrolysis on the W cathode from La2O3 in LiCl-KCl-MgCl2-KF melts with aluminum as the anode. X-ray diffraction (XRD) measurements indicated that various phases like the Al2La, Al12Mg17, and βLi phase (LiMg/Li3Mg7) existed in the Mg-Li-Al-La alloys. The distribution of Mg, Al, and La in Mg-Li-Al-La alloys from the analysis of a scan electron micrograph (SEM) and energy dispersive spectrometry (EDS) indicated that the elements Mg, Al, and La distributed homogeneously in the alloys.

  16. Effect of borate coating on corrosion resistance of pure nickel in molten LiCl-Li2O

    Institute of Scientific and Technical Information of China (English)

    刘瑞岩; 王旭; 张俊善; 王秀敏; 祝美丽

    2004-01-01

    The pack boriding process was used to treat pure nickel at a boriding temperature of 950 ℃ for a boriding time of 5 h. A dense and continuous borided layer with 40 μm thickness was obtained on pure nickel. Corrosion behavior of the borided layer was investigated in molten LiCl-10% Li2O(mass fraction) at 750 ℃ in air. The mass lower than that of unborided pure nickel. The preferential corrosion of B in borided layer effectively prevents the corrosion of nickel, which improves the corrosion resistance of pure nickel in molten LiCl-Li2 O.

  17. LiCoO2 electrode/electrolyte interface of Li-ion batteries investigated by electrochemical impedance spectroscopy

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The storage behavior and the first delithiation of LiCoO2 electrode in 1 mol/L LiPF6-EC:DMC:DEC electrolyte were investigated by electrochemical impedance spectroscopy (EIS). It has found that, along with the increase of storage time, the thickness of SEI film increases, and some organic carbonate lithium compounds are formed due to spontaneous reactions occurring between the LiCoO2 electrode and the electrolyte. When electrode potential is changed from 3.8 to 3.95 V, the reversible breakdown of the resistive SEI film occurs, which is attributed to the reversible dissolution of the SEI film component. With the increase of electrode potential, the thickness of SEI film increases rapidly above 4.2 V, due to overcharge reactions. The inductive loop observed in impedance spectra of the LiCoO2 electrode in Li/LiCoO2 cells is attributed to the formation of a Li1-xCoO2/LiCoO2 concentration cell. Moreover, it has been demonstrated that the lithium-ion insertion-deinsertion in LiCoO2 hosts can be well described by both Langmuir and Frumkin insertion isotherms, and the symmetry factor of charge transfer has been evaluated at 0.5.

  18. Islamic culture and the narrative ethics of Hui novels after the turn of the century%伊斯兰文化与世纪之交以来回族小说的叙事伦理

    Institute of Scientific and Technical Information of China (English)

    金春平

    2014-01-01

    With their fundamental values originated from Islamic culture, the Hui novels since the turn of the century tend to construct a religious narrative ethics of“conservatism”:by the“clean spirit”, saving the true humanity and clean Soul against profane temptation and moral corruption;by the“awareness of the other shore”, pursuing the communion of life and death, and the transmigration and relief from secular suffering, by“sacred experience”, understanding the animism and mysterious vision in religion and deities; and by the consciousness of “converting to maternal family”, seeking the identity affiliation and native poetry from the spirit vagrancy and cultural rootlessness. Hence the narrative ethics bred by the Islamic culture implicate certain religious reflection and aesthetic criticism against the novel narrations which take“Modernity”as their dominant values.%世纪之交以来的回族小说,以伊斯兰文化为价值底色,构建着“保守主义”倾向的宗教性叙事伦理,主要表现为以“清洁精神”伦理拯救世俗诱惑和道德沦陷困境中的人性之真与心灵之净,以“彼岸意识”伦理探寻生死相通和现世苦难追问中的轮回运转与超越解脱,以“神圣体验”伦理参悟万物有灵和宗教神祗领域中的幽冥哲思与神秘图景,以“母族皈依”伦理重觅精神漂泊和文化无根突围中的身份归属与本土诗意,伊斯兰文化孕育的叙事伦理,蕴含着对以“现代性”为价值主导小说叙事的宗教式反思与审美式批判。

  19. Study on Fluctuation Ratio of Grassland Vegetation in the Haba Lake Natural Reserve of Ningxia Hui Autonomous Region%哈巴湖自然保护区草地植被数量波动探讨

    Institute of Scientific and Technical Information of China (English)

    苏鹏飞; 张克斌; 王晓; 庞吉林; 王海星

    2012-01-01

    植被波动是植被动态的一种表现形式,该文在生态学、统计学基础上,结合草地植被特征,采用专家权重法构建草地植被波动测度公式,以哈巴湖自然保护区为例,研究2006—2010年草地植被数量波动及波动率,从数量特征上对草地植被波动进行探讨。结果表明:哈巴湖自然保护区植被波动率正向波动2007年最大,为0.381,是近年来植被生长状况最好的一年;负向波动以2009年的-0.350的绝对值最大,表明2009年是近年来植被生长状况最差的一年。草地植被数量的波动,一定程度上反映了该年度植被生长状况,为草地经营管理和植被恢复提供了便利,同时也为预测未来草地植被变化提供了依据。%Vegetation fluctuation is an important part of vegetation dynamics.Based on the meanings of ecology and statistics,and combined with the characteristics of grassland vegetation,fluctuation measure formula was built by the method of expert weighting.The grassland vegetation quantitative fluctuation and its fluctuation ratio between 2006 and 2010 were studied in Haba Lake Natural Reserve of Ningxia Hui Autonomous Region,the fluctuation was discussed from the number of features on the grassland.Results showed that the biggest positive fluctuation ratio was 0.381 in 2007,meaning the best vegetation growth during recent years.While the most negative fluctuation ratio was-0.350 in 2009,meaning the worst vegetation growth during this period.Vegetation fluctuation of grassland reflects the situation of vegetation growth and provides scientific basis for grassland management,as an effective method to forecast future grassland fluctuations.

  20. 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

    1995-01-01

    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 obt

  1. 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

  2. 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.

    2016-01-01

    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 achievi

  3. 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.

  4. 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

  5. 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...

  6. Fast neutron measurements with 7Li and 6Li enriched CLYC scintillators

    Science.gov (United States)

    Giaz, A.; Blasi, N.; Boiano, C.; Brambilla, S.; Camera, F.; Cattadori, C.; Ceruti, S.; Gramegna, F.; Marchi, T.; Mattei, I.; Mentana, A.; Million, B.; Pellegri, L.; Rebai, M.; Riboldi, S.; Salamida, F.; Tardocchi, M.

    2016-07-01

    The recently developed Cs2LiYCl6:Ce (CLYC) crystals are interesting scintillation detectors not only for their gamma energy resolution (<5% at 662 keV) but also for their capability to identify and measure the energy of both gamma rays and fast/thermal neutrons. The thermal neutrons were detected by the 6Li(n,α)t reaction while for the fast neutrons the 35Cl(n,p)35S and 35Cl(n,α)32P neutron-capture reactions were exploited. The energy of the outgoing proton or α particle scales linearly with the incident neutron energy. The kinetic energy of the fast neutrons can be measured using both the Time Of Flight (TOF) technique and using the CLYC energy signal. In this work, the response to monochromatic fast neutrons (1.9-3.8 MeV) of two CLYC 1″×1″ crystals was measured using both the TOF and the energy signal. The observables were combined to identify fast neutrons, to subtract the thermal neutron background and to identify different fast neutron-capture reactions on 35Cl, in other words to understand if the detected particle is an α or a proton. We performed a dedicated measurement at the CN accelerator facility of the INFN Legnaro National Laboratories (Italy), where the fast neutrons were produced by impinging a proton beam (4.5, 5.0 and 5.5 MeV) on a 7LiF target. We tested a CLYC detector 6Li-enriched at about 95%, which is ideal for thermal neutron measurements, in parallel with another CLYC detector 7Li-enriched at more than 99%, which is suitable for fast neutron measurements.

  7. Fast neutron measurements with {sup 7}Li and {sup 6}Li enriched CLYC scintillators

    Energy Technology Data Exchange (ETDEWEB)

    Giaz, A., E-mail: agnese.giaz@mi.infn.it [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Blasi, N.; Boiano, C.; Brambilla, S. [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Camera, F. [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Università degli Studi di Milano, Physics Department, Via Celoria 16, 20133 Milano (Italy); Cattadori, C. [INFN sezione di Milano Bicocca, Piazza della Scienza 3, 20125 Milano (Italy); Ceruti, S. [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Università degli Studi di Milano, Physics Department, Via Celoria 16, 20133 Milano (Italy); Gramegna, F.; Marchi, T. [INFN Laboratori Nazionali di Legnaro, Viale dell’Università, 2, 35020 Legnaro, PD (Italy); Mattei, I. [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Mentana, A. [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Università degli Studi di Milano, Physics Department, Via Celoria 16, 20133 Milano (Italy); Million, B.; Pellegri, L. [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Rebai, M. [Università degli Studi di Milano Bicocca, Physics Department, Piazza della Scienza 3, 20126 Milano (Italy); Riboldi, S. [INFN Milano, Via Celoria 16, 20133 Milano (Italy); Università degli Studi di Milano, Physics Department, Via Celoria 16, 20133 Milano (Italy); Salamida, F. [INFN sezione di Milano Bicocca, Piazza della Scienza 3, 20125 Milano (Italy); Tardocchi, M. [Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, Via R. Cozzi 53, 2015 Milano (Italy)

    2016-07-21

    The recently developed Cs{sub 2}LiYCl{sub 6}:Ce (CLYC) crystals are interesting scintillation detectors not only for their gamma energy resolution (<5% at 662 keV) but also for their capability to identify and measure the energy of both gamma rays and fast/thermal neutrons. The thermal neutrons were detected by the {sup 6}Li(n,α)t reaction while for the fast neutrons the {sup 35}Cl(n,p){sup 35}S and {sup 35}Cl(n,α){sup 32}P neutron-capture reactions were exploited. The energy of the outgoing proton or α particle scales linearly with the incident neutron energy. The kinetic energy of the fast neutrons can be measured using both the Time Of Flight (TOF) technique and using the CLYC energy signal. In this work, the response to monochromatic fast neutrons (1.9–3.8 MeV) of two CLYC 1″×1″ crystals was measured using both the TOF and the energy signal. The observables were combined to identify fast neutrons, to subtract the thermal neutron background and to identify different fast neutron-capture reactions on {sup 35}Cl, in other words to understand if the detected particle is an α or a proton. We performed a dedicated measurement at the CN accelerator facility of the INFN Legnaro National Laboratories (Italy), where the fast neutrons were produced by impinging a proton beam (4.5, 5.0 and 5.5 MeV) on a {sup 7}LiF target. We tested a CLYC detector {sup 6}Li-enriched at about 95%, which is ideal for thermal neutron measurements, in parallel with another CLYC detector {sup 7}Li-enriched at more than 99%, which is suitable for fast neutron measurements.

  8. Density functional theory study of lithium diffusion at the interface between olivine-type LiFePO4 and LiMnPO4

    Science.gov (United States)

    Shi, Jianjian; Wang, Zhiguo; Qing Fu, Yong

    2016-12-01

    Coating LiMnPO4 with a thin layer of LiFePO4 shows a better electrochemical performance than the pure LiFePO4 and LiMnPO4, thus it is critical to understand Li diffusion at their interfaces to improve the performance of electrode materials. Li diffusion at the (1 0 0)\\text{LiFeP{{\\text{O}}4}} //(1 0 0)\\text{LiMnP{{\\text{O}}4}} , (0 1 0)\\text{LiFeP{{\\text{O}}4}} //(0 1 0)\\text{LiMnP{{\\text{O}}4}} , and (0 0 1)\\text{LiFeP{{\\text{O}}4}} //(0 0 1)\\text{LiMnP{{\\text{O}}4}} interfaces between LiFePO4 and LiMnPO4 was investigated using density functional theory. The calculated diffusion energy barriers are 0.55 eV for Li to diffuse along the (0 0 1) interface, 0.44 and 0.49 eV for the Li diffusion inside the LiMnPO4 and along the (1 0 0) interface, respectively. When Li diffuses from the LiFePO4 to LiMnPO4 by passing through the (0 1 0) interfaces, the diffusion barriers are 0.45 and 0.60 eV for the Li diffusions in both sides. The diffusion barriers for Li to diffuse in LiMnPO4 near the interfaces decrease compared with those in the pure LiMnPO4. The calculated diffusion coefficient of Li along the (1 0 0) interface is in the range of 3.65  ×  10-11-5.28  ×  10-12 cm2 s-1, which is larger than that in the pure LiMnPO4 with a value of 7.5  ×  10-14 cm2 s-1. Therefore, the charging/discharging rate performance of the LiMnPO4 can be improved by surface coating with the LiFePO4.

  9. Li3PO4-added garnet-type Li6.5La3Zr1.5Ta0.5O12 for Li-dendrite suppression

    Science.gov (United States)

    Xu, Biyi; Li, Wenlong; Duan, Huanan; Wang, Haojing; Guo, Yiping; Li, Hua; Liu, Hezhou

    2017-06-01

    This paper proposes a strategy to stabilize the garnet/Li interface by introducing Li3PO4 as an additive in garnet-type Li6.5La3Zr1.5Ta0.5O12. The Li3PO4-added Li6.5La3Zr1.5Ta0.5O12 electrolyte exhibits a room-temperature Li-ion conductivity of 1.4 × 10-4 S cm-1, which is less than that of the Li3PO4-free counterparts (4.6 × 10-4 S cm-1). However, the presence of Li3PO4 improves the interfacial compatibility and suppresses Li-dendrite formation during Li-metal plating/stripping. The symmetric Li/garnet/Li cells with Li3PO4-added Li6.5La3Zr1.5Ta0.5O12 have been successfully cycled at a current density of 0.1 mA cm-2 at 60 °C for 60 h; on contrast, the control cells with Li3PO4-free Li6.5La3Zr1.5Ta0.5O12 display noisy potential with large voltage polarization and get short-circuited completely after 33-h cycling under the same operating condition. The outstanding interface stability can be attributed to the in situ reaction of the Li flux with Li3PO4 to form a self-limiting and ion-conducting interphase, Li3P, which is confirmed experimentally.

  10. Computational modeling of Li-ion batteries

    Science.gov (United States)

    Grazioli, D.; Magri, M.; Salvadori, A.

    2016-08-01

    This review focuses on energy storage materials modeling, with particular emphasis on Li-ion batteries. Theoretical and computational analyses not only provide a better understanding of the intimate behavior of actual batteries under operational and extreme conditions, but they may tailor new materials and shape new architectures in a complementary way to experimental approaches. Modeling can therefore play a very valuable role in the design and lifetime prediction of energy storage materials and devices. Batteries are inherently multi-scale, in space and time. The macro-structural characteristic lengths (the thickness of a single cell, for instance) are order of magnitudes larger than the particles that form the microstructure of the porous electrodes, which in turn are scale-separated from interface layers at which atomistic intercalations occur. Multi-physics modeling concepts, methodologies, and simulations at different scales, as well as scale transition strategies proposed in the recent literature are here revised. Finally, computational challenges toward the next generation of Li-ion batteries are discussed.

  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. Electrocatalysis in Li-S batteries

    Science.gov (United States)

    Al salem, Hesham I. A.

    Stabilizing polysulfide-shuttle process while ensuring high sulfur loading holds the key to realize high theoretical energy density (2500 Wh/kg) of lithium-sulfur (Li-S) batteries. Though several carbon based porous materials have been used as host structures for sulfur and its intermediate polysulfides, the week adsorption of polysulfides on carbon surface and its poor reaction kinetics limits them from practical application. Here, we preset a novel electcatalysis approach to stabilize polysulfide shuttle process and also enhance its red-ox kinetics. As a proof of concept, we have studied in-detail using conventional electrocatalyst (Pt/graphene composite), further the same extended to cost-effective electrocatalysts such as WS2 nanosheets and Metal carbides for viable practical applications. Nature of electrocatalyst, concentration of polysulfides and temperature of the cell on electrochemical properties will be discussed. We reveal substantial improvement in electrochemical properties such as specific capacity, rate capability, and coulombic efficiency and corroborate our findings with systematic experimental studies. Interaction between electrocatalyst and polysulfides has been evaluated by conducting X-ray photoelectron spectroscopy and electron microscopy studies at various electrochemical conditions. As a conclusion, introducing a catalyst in the Li-S system will open a new avenue for improving electrochemical performance.

  13. Computational modeling of Li-ion batteries

    Science.gov (United States)

    Grazioli, D.; Magri, M.; Salvadori, A.

    2016-12-01

    This review focuses on energy storage materials modeling, with particular emphasis on Li-ion batteries. Theoretical and computational analyses not only provide a better understanding of the intimate behavior of actual batteries under operational and extreme conditions, but they may tailor new materials and shape new architectures in a complementary way to experimental approaches. Modeling can therefore play a very valuable role in the design and lifetime prediction of energy storage materials and devices. Batteries are inherently multi-scale, in space and time. The macro-structural characteristic lengths (the thickness of a single cell, for instance) are order of magnitudes larger than the particles that form the microstructure of the porous electrodes, which in turn are scale-separated from interface layers at which atomistic intercalations occur. Multi-physics modeling concepts, methodologies, and simulations at different scales, as well as scale transition strategies proposed in the recent literature are here revised. Finally, computational challenges toward the next generation of Li-ion batteries are discussed.

  14. Einstein today; Einstein aujourd'hui

    Energy Technology Data Exchange (ETDEWEB)

    Aspect, A.; Grangier, Ph. [Centre National de la Recherche Scientifique (CNRS), Lab. Charles Fabry de l' Institut d' Optique a Orsay, 91 - Orsay (France); Bouchet, F.R. [Institut d' Astrophysique de Paris, CNRS, 75 - Paris (France); Brunet, E.; Derrida, B. [Universite Pierre et Marie Curie, Ecole Normale Superieure, 75 - Paris (France); Cohen-Tannoudji, C. [Academie des Sciences, 75 - Paris (France); Dalibard, J.; Laloe, F. [Laboratoire Kastler Brossel. UMR 8552 (ENS, UPMC, CNRS), 75 - Paris (France); Damour, Th. [Institut des Hautes Etudes Scientifiques, 91 - Bures sur Yvette (France); Darrigol, O. [Centre National de la Recherche Scientifique (CNRS), Groupe Histoire des Sciences Rehseis, 75 - Paris (France); Pocholle, J.P. [Thales Research et Technology France, 91 - Palaiseau (France)

    2005-07-01

    The most important contributions of Einstein involve 5 fields of physics : the existence of quanta (light quanta, stimulated radiation emission and Bose-Einstein condensation), relativity, fluctuations (Brownian motion and thermodynamical fluctuations), the basis of quantum physics and cosmology (cosmological constant and the expansion of the universe). Diverse and renowned physicists have appreciated the development of modern physics from Einstein's ideas to the knowledge of today. This book is a collective book that gathers their work under 7 chapters: 1) 1905, a new beginning; 2) from the Einstein, Podolsky and Rosen's article to quantum information (cryptography and quantum computers); 3) the Bose-Einstein condensation in gases; 4) from stimulated emission to the today's lasers; 5) Brownian motion and the fluctuation-dissipation theory; 6) general relativity; and 7) cosmology. (A.C.)

  15. La chanson belge d'aujourd'hui

    Institute of Scientific and Technical Information of China (English)

    Corinne Bricmaan

    2011-01-01

    Pays multilingue et multiculturel,la Belgique est un carrefour de cultures;ce qui a évidemment influencé ses expressions artistiques,la chanson y compris.Les origines de sa musique sont bien plus anciennes que la proclamation d'indépendance de la nation elle-même,en 1830.Elles prennent source:— d'un c(o)té,dans la complexité musicale de la tradition médiévale flamande;— de l'autre,dans l'héritage ludique des jongleurs et des ménestrels qui chantaient en langue d'oil au Moyen (A)ge.Les traces de ces trouvères qui ont habité le pays restent visibles pour ceux qui savent les voir.

  16. 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.

  17. 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...

  18. Review on Li Shiqiao’s Understanding the Chinese City

    Institute of Scientific and Technical Information of China (English)

    Martijn; de; Geus

    2015-01-01

    Understanding the Chinese City Author:Li Shiqiao Year:2014Publisher:SAGE Publications Ltd.ISBN:978-1466208830(264 pages,in English)1.Introduction Li Shiqiao’s latest book,Understanding the Chinese City,tries to create a conceptual framework for understanding the Chinese city that captures its contemporary hypermodernity and its

  19. NASA/GSFC Testing of Li-Ion Cells: Update

    Science.gov (United States)

    Vaidyanathan, Hari; Rao, Gopalakrishna M.

    2001-01-01

    This viewgraph paper presents a report on the ongoing testing of Lithium Ion (Li-Ion) cells. Characterizes cells according to capacity, self-discharge, and mid-discharge voltage. Determines the cycling performance of Li-Ion cells as batteries according to number of cycles, charge voltage, and temperature.

  20. President Li Xiaolin Meets with Apple Vice-President Jackson

    Institute of Scientific and Technical Information of China (English)

    Jiang; Yingshan

    2016-01-01

    On April 26,2016,CPAFFC President Li Xiaolin met with VicePresident Lisa Jackson of Apple Inc.She briefed Jackson on the CPAFFC’s history and major projects,including the China-US Governors Forum.Li also stressed that both China and the United States should enhance cooperation based on mutual trust.She hoped