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Insertion compounds prepared via mechanochemically assisted solid state way for advanced hybrid-ion batteries

Materials Today: Proceedings 2017年第3期4卷 4496-4501页

作者： Nina V. Kosova Daria O. Rezepova Institute of Solid State Chemistry and Mechanochemistry Siberian Branch of the Russian Academy of Sciences 18 Kutateladze 630128 Novosibirsk Russia

In this work, a fast and facile mechanochemical approach has been used to prepare sodium vanadium fluorophosphates cathode materials with two compositions of NaVPO 4 f and Na 3 V 2 (PO 4 ) 2 f 3 to compare their structure and electrochemical behavior in hybrid-ion cells. It is established that Na 3 V 2 (PO 4 ) 2 f 3 is a single phase material with a tetragonal structure (the P4 2 /mnm S.G.), while NaVPO 4 f consists of Na 3 V 2 (PO 4 ) 2 f 3 and some impurity phases. Na 3 V 2 (PO 4 ) 2 f 3 shows an excellent electrochemical performance in a hybrid-ion cell with Li metal anode and Li-based electrolyte. Ex situ XRD studies and analysis of differential capacity curves point out a negligible Na + /Li + ion electrochemical exchange and the predominant sodium-based cathode reaction.

关键词： Na 3 V 2 (PO 4 ) 2 f 3 NaVPO 4 f mechanical activation hybrid-ion batteries

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Nuklearmedizinische Verfahren zur Diagnostik der Spondylodiszitis

Die Wirbelsäule

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Die Wirbelsäule 2017年第4期01卷 255-264页

作者： K. H. Davis C. Happel M. Heller T. J. Vogl M. Rauschmann f. Grünwald Universitätsklinikum Frankfurt Klinik für Nuklearmedizin Institut für Diagnostische und Interventionelle Radiologie Orthopädische Universitätsklinik Frankfurt Friedrichsheim gGmbH

Numerous nuclear imaging techniques exist for detection of spondylodiscitis (SP), which vary in terms of their diagnostic value. While leucocyte and antigranulocyte antibody scintigraphy show lack of sensitivity and specificity, bone scintigraphy provides satisfactory results and is used particularly when MRI is contraindicated. Today,

关键词： Spondylodiszitis spinale Infektion Skelettszintigrafie f fDG PET MRT spondylodiscitis spinal infection bone scan f fDG PET MRI

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Aloeverasides A and B: Two Bioactive C-Glucosyl Chromones from Aloe vera Resin

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HELVETICA CHIMICA ACTA 2016年第9期99卷 687-690页

作者： Rehman, Najeeb Ur Hussain, Hidayat Khiat, Mohammed Al-Riyami, Samia Ahmed Csuk, Rene Khan, Husain Yar Abbas, Ghulam Al-Thani, Ghanim Salim Green, Ivan R. Al-Harrasi, Ahmed Univ Nizwa UoN Chair Omans Med Plants & Marine Nat Prod POB 33 Birkat Al Mauz 616 Nizwa Oman Univ Halle Wittenberg Organ Chem Kurt Mothes Str 2 DE-06120 Halle Germany Univ Nizwa Dept Biol Sci & Chem POB 33 Birkat Al Mauz 616 Nizwa Oman Univ Nizwa DARIS Ctr Sci Res & Technol Dev POB 33 Birkat Al Mauz 616 Nizwa Oman Univ Stellenbosch Dept Chem & Polymer Sci P Bag X1 ZA-7602 Matieland South Africa

Two new C-glucosyl chromones named aloeverasides A (1) and B (2) were isolated from the resin of Commiphoragileadensis (L.) C. Chr. The structures of the two new natural products were elucidated based on 1D- (H-1- and C-13-NMR) and 2D-NMR (COSY, HSQC, and HMBC) spectroscopic techniques and mass spectrometry (ESI-MS). Aloeverasides A (1) and B (2) were evaluated for their anticancer activity, and both induced a 76.4 and 70.5% growth inhibition of the breast cancer cell line (MDA-MB-231) at a concentration of 100m. Both compounds were also evaluated for their 1,1-diphenyl-2-picryl-hydrazyl antioxidant, urease enzyme, and -glucosidase enzyme inhibition activities. Aloeverasides A (1) and B (2) displayed good urease enzyme inhibition activities (62 and 55%, resp.), as well as antioxidant activity in which aloeveraside A (1) had a value of 60% inhibition, while aloeveraside B (2) demonstrated a more potent antioxidant activity with 80% inhibition.

关键词： Aloe vera (L ) Burm f Natural products Chromones Structure elucidation

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Measuring Vocal fatigue in Sports Coaches

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Journal of Clinical Speech and Language Studies 2017年第1期23卷 1-20页

作者： Connaughton, Kathy Yanushevskaya, Irena National University of Ireland Galway Ireland National University of Ireland Galway Ireland

Objective:This study explores the immediate impact of prolonged voice use by professional sports coaches. Method:Speech samples including sustained phonation of vowel /a/ and a short read passage were collected from two professional sports coaches. The audio recordings were made within an hour before and after a coaching session, over three sessions. Perceptual evaluation of voice quality was done using the GRBAS scale. The speech samples were subsequently analyzed using Praat. The acoustic measures included fundamental frequency (f0), jitter, shimmer, Harmonics-to-Noise ratio and Cepstral Peak Prominence. Main results:The results of perceptual and acoustic analysis suggest a slight shift towards a tenser phonation post-coaching session, which is a likely consequence of laryngeal muscle adaptation to prolonged voice use. This tendency was similar in sustained vowels and connected speech. Conclusion: Acoustic measures used in this study can be useful to capture the voice change post-coaching session. It is desirable, however, that more sophisticated and robust and at the same time intuitive and easy-to-use tools for voice assessment and monitoring be made available to clinicians and professional voice users.

关键词： Vocal fatigue sports coaches acoustic analysis f

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f食品贸易公司发展战略研究

F食品贸易公司发展战略研究

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作者：王天松沈阳大学

学位级别：硕士

改革开放以来,伴随着社会经济发展和人民生活水平的提高,人们的饮食习惯和饮食结构都发生了巨大改变。根据2015中国大众富裕阶层白皮书的统计数据显示,截止2014年我国富裕阶层人口大约在1400万人左右,这批富裕的人群的消费观念改变也影... 详细信息

改革开放以来,伴随着社会经济发展和人民生活水平的提高,人们的饮食习惯和饮食结构都发生了巨大改变。根据2015中国大众富裕阶层白皮书的统计数据显示,截止2014年我国富裕阶层人口大约在1400万人左右,这批富裕的人群的消费观念改变也影响着我国高端进口食品的发展,同时也催生了很多从事进口食品贸易的公司。f食品贸易公司是一家作为代理高端食材品牌的贸易公司,在竞争激烈高端食材市场中,如何凭借品牌优势占领一席之地,这也构成本文的写作背景。本文通过对真实案例分析,以发展战略理论为基础,通过对国内大环境及市场因素分析,结合f食品贸易公司优势与不足,力图探讨和制定能够使f食品贸易公司成长壮大的发展战略。本文首先分析公司发展现状和市场前景,然后进一步来分析企业当前的市场状况和面临的外部环境。论文正文分为六个部分进行阐述。第一步:主要阐述本文的研究背景以及本文的主要内容、研究价值和研究方法。第二步:阐述论文的相关理论进行分析梳理,作为后续写作的理论铺垫。第三步:通过对f食品贸易公司的基本状况描述、市场现状及前景分析进行研究。同时阐述了当今情况下,食品贸易行业的运作模式以及f食品贸易公司发展中存在的问题。第四步:通过PEST分析法来分析当前政治环境、经济消费、社会文化和技术环境下,f食品贸易公司面临的外部宏观环境下,自身以及竞争对手的各项数据对比,找出制约f食品贸易公司发展中的障碍因素,准确定位自身的不足之处。第五步:主要利用SWOT分析法来分析公司发展所面临的优劣势以及选择公司的发展战略,公司确定以差异化发展战略为主导进行战略实施。通过服务、产品种类、包装和销售差异化的四种具体措施,进而实现企业的差异化战略。第六步:在上述分析的基础上,制定f食品贸易公司战略实施的一些保证措施。通过以上分析,进行自身发展战略导向的调整,完善快速发展中存在的诟病,实施补救措施。本文试图通过对f食品贸易公司的发展状况进行分析,找出适合f食品贸易公司的发展战略,从而推动公司的快速发展。

关键词： f 食品贸易公司发展战略环境分析 SWOT 分析

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Stochastic Analysis of Complex Repairable System with Deliberate failure Emphasizing Reboot Delay

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COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION 2016年第2期45卷 583-602页

作者： Kumar, Deepak Singh, S. B. GB Pant Univ Agr & Technol Dept Math Stat & Comp Sci Pantnagar 263145 Uttar Pradesh India

Present paper discusses the reliability analysis of a complex system which consists of two repairable subsystems namely A and B connected in series. A is a linear consecutive 2 out of 3:f system and B is a 1 out of n: f system. In this study, two types of failure such as deliberate failure and critical failure have been taken into consideration incorporating reboot delay. Various transition state probabilities, reliability, availability, M.T.T.f., cost analysis, and sensitivity analysis have been obtained along with the steady state behavior of the system. At the end, some special cases of the system have been taken.

关键词： Complex System Deliberate failure Gumbel-Hougaard family of copula M T T f Reboot Delay Reliability Sensitivity

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Evolutionary dynamics of the leaf phenological cycle in an oak metapopulation along an elevation gradient

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JOURNAL Of EVOLUTIONARY BIOLOGY 2017年第12期30卷 2116-2131页

作者： firmat, C. Delzon, S. Louvet, J. -M. Parmentier, J. Kremer, A. INRA URP3F RD150. Site CheneBP 86006 F-86600 Lusignan France Univ Bordeaux INRA UMR BIOGECO 1202 Cestas France INRA Ctr Rech Bordeaux Aquitaine UE 0393 Unite Expt Arboricole Toulenne France

It has been predicted that environmental changes will radically alter the selective pressures on phenological traits. Long-lived species, such as trees, will be particularly affected, as they may need to undergo major adaptive change over only one or a few generations. The traits describing the annual life cycle of trees are generally highly evolvable, but nothing is known about the strength of their genetic correlations. Tight correlations can impose strong evolutionary constraints, potentially hampering the adaptation of multivariate phenological phenotypes. In this study, we investigated the evolutionary, genetic and environmental components of the timing of leaf unfolding and senescence within an oak metapopulation along an elevation gradient. Population divergence, estimated from insitu and common-garden data, was compared to expectations under neutral evolution, based on microsatellite markers. This approach made it possible (1) to evaluate the influence of genetic correlation on multivariate local adaptation to elevation and (2) to identify traits probably exposed to past selective pressures due to the colder climate at high elevation. The genetic correlation was positive but very weak, indicating that genetic constraints did not shape the local adaptation pattern for leaf phenology. Both spring and fall (leaf unfolding and senescence, respectively) phenology timings were involved in local adaptation, but leaf unfolding was probably the trait most exposed to climate change-induced selection. Our data indicated that genetic variation makes a much smaller contribution to adaptation than the considerable plastic variation displayed by a tree during its lifetime. The evolutionary potential of leaf phenology is, therefore, probably not the most critical aspect for short-term population survival in a changing climate.

关键词： evolvability extreme environments f (ST) - Q (ST) genetic constraints G-matrix local adaptation within-individual variability

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Evaluation of intraoperative fluorescence imaging-guided surgery in cancer-bearing dogs: a prospective proof-of-concept phase II study in 9 cases

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TRANSLATIONAL RESEARCH 2016年 170卷 73-88页

作者： Gabon, Quentin Sayag, David Texier, Isabelle Navarro, fabrice Boisgard, Raphael Virieux-Watrelot, Dorothee Ponce, frederique Carozzo, Claude VetAgrosup Campus Vet Surg & Anesthesia Unit Marcy Letoile France VetAgrosup Campus Vet Small Anim Internal Med Unit Dept Clin Oncol Marcy Letoile France Univ Grenoble Alpes Grenoble France CEA LETI MINATEC DTBS Grenoble France CEA Serv Hosp Frederic Joliot F-91406 Orsay France VetAgrosup Campus Vet Lyon Anat Pathol Unit Marcy Letoile France

The objective was to prospectively evaluate the application of intraoperative fluorescence imaging (IOfI) in the surgical excision of malignant masses in dogs, using a novel lipid nanoparticle contrast agent. Dogs presenting with spontaneous soft-tissue sarcoma or subcutaneous tumors were prospectively enrolled. Clinical staging and whole-body computed tomography (CT) were performed. All the dogs received an intravenous injection of dye-loaded lipid nanoparticles, LipImage 815. Wide or radical resection was realized after CT examination. Real-time IOfI was performed before skin incision and after tumor excision. In cases of radical resection, the lymph nodes (LNs) were imaged. The margin/healthy tissues fluorescence ratio or LN/healthy tissues fluorescence ratio was measured and compared with the histologic margins or LN status. Nine dogs were included. Limb amputation was performed in 3 dogs, and wide resection in 6. No adverse effect was noted. fluorescence was observed in all 9 of the tumors. The margins were clean in 5 of 6 dogs after wide surgical resection, and the margin/healthy tissues fluorescence ratio was close to 1.0 in all these dogs. Infiltrated margins were observed in 1 case, with a margin/healthy tissues fluorescence ratio of 3.2. Metastasis was confirmed in 2 of 3 LNs, associated with LN/healthy tissues fluorescence ratios of 2.1 and 4.2, whereas nonmetastatic LN was associated with a ratio of 1.0. LipImage 815 used as a contrast agent during IOfI seemed to allow for good discrimination between tumoral and healthy tissues. future studies are scheduled to evaluate the sensitivity and specificity of IOfI using LipImage 815 as a tracer.

关键词： IOfI intraoperative fluorescence imaging CT computed tomography LN lymph node STS soft-tissue sarcoma NIR near infrared ICG indocyanine green EPR enhanced permeability and retention LED light-emitting diode RLU relative light unit MC male castrated fS female spayed M male f female ALP alkaline phosphatase ALT alanine aminotransferase IU international units fNA fine needle aspiration

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Doppler endoscopic probe as a guide to risk stratification and definitive hemostasis of peptic ulcer bleeding

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GASTROINTESTINAL ENDOSCOPY 2016年第1期83卷 129-136页

作者： Jensen, Dennis M. Ohning, Gordon V. Kovacs, Thomas O. G. Ghassemi, Kevin A. Jutabha, Rome Dulai, Gareth S. Machicado, Gustavo A. Univ Calif Los Angeles Div Digest Dis CURE Digest Dis Res Ctr CURE Hemostasis Res Grp Los Angeles CA USA Univ Calif Los Angeles David Geffen Sch Med Ronald Reagan Univ Calif Los Angeles Dept MedMed Ctr Los Angeles CA 90095 USA West Los Angeles Vet Adm Med Ctr Los Angeles CA USA

Background and Aims: for more than 4 decades endoscopists have relied on ulcer stigmata for risk stratification and as a guide to hemostasis. None used arterial blood flow underneath stigmata to predict outcomes. for patients with severe peptic ulcer bleeding (PUB), we used a Doppler endoscopic probe (DEP) for (1) detection of blood flow underlying stigmata of recent hemorrhage (SRH), (2) quantitating rates of residual arterial blood flow under SRH after visually directed standard endoscopic treatment, and (3) comparing risks of rebleeding and actual 30-day rebleed rates for spurting arterial bleeding (forrest [f] IA) and oozing bleeding (f IB). Methods: Prospective cohort study of 163 consecutive patients with severe PUB and different SRH. Results: All blood flow detected by the DEP was arterial. Detection rates were 87.4% in major SRH-spurting arterial bleeding (f IA), non-bleeding visible vessel (f IIA), clot (f IIB)-and were significantly lower at 42.3% (P <.0001) for an intermediate group of oozing bleeding (f IB) or flat spot (f IIC). for spurting bleeding (f IA) versus oozing (f IB), baseline DEP arterial flow was 100% versus 46.7%, residual blood flow detected after endoscopic hemostasis was 35.7% versus 0%, and 30-day rebleed rates were 28.6% versus 0% (all P <.05). Conclusions: (1) for major SRH versus oozing or spot, the arterial blood flow detection rate by the DEP was significantly higher, indicating a higher rebleed risk. (2) Before and after endoscopic treatment, spurting (f IA) PUB had significantly higher rates of blood flow detection than oozing (f IB) PUB and a significantly higher 30-day rebleed rate. (3) The DEP is recommended as a new endoscopic guide with SRH to improve risk stratification and potentially definitive hemostasis for PUB.

关键词： CURE, DDRC CURE Digestive Diseases Research Center DEP Doppler endoscopic probe f forrest (classification) MPEC multipolar probe electrocoagulation PPI proton pump inhibitor PUB peptic ulcer bleeding SRH stigmata of recent hemorrhage

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利用特征配置的SLIM安全性验证方法

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小型微型计算机系统 2017年第10期38卷 2346-2351页

作者：李宙洲魏欧黄鸣宇南京航空航天大学计算机科学与技术学院

安全关键系统的愈发复杂,使得系统的安全性和开发成本面临着越来越大的挑战.由ESA赞助的COMPASS项目,使用SLIM对诸如航天器系统这样的安全关键系统进行建模,不仅可以描述系统标定的软硬件行为,还可以描述系统的概率性故障、故障对系统... 详细信息

安全关键系统的愈发复杂,使得系统的安全性和开发成本面临着越来越大的挑战.由ESA赞助的COMPASS项目,使用SLIM对诸如航天器系统这样的安全关键系统进行建模,不仅可以描述系统标定的软硬件行为,还可以描述系统的概率性故障、故障对系统的影响和系统恢复.本文从软件产品线角度提出一个新颖的、针对SLIM扩展模型的验证方法—将软件产品线中产品的可变性引入安全性验证过程,将系统中的故障看作系统中可以进行配置的特征,直观、清楚地刻画了安全分析中系统的结构和行为.使用成熟的SLIM语言建立安全关键系统的扩展模型,将SLIM扩展模型中的故障作为特征、完成扩展模型到fPromela模型的转换;利用软件产品线模型检测工具SNIP对转换得到的f Promela模型进行检测,找出造成系统失效的故障,完成对SLIM扩展模型的安全性验证工作.根据模型转换的规则,设计并实现了转换工具S2f.同时,结合COMPASS给定的标准案例—数据采集系统进行实例分析.

关键词：安全关键系统 SLIM语言 f Promela语言安全性验证模型检测

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