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2.646 Aktuelle Fachpublikationen zum Thema temperature

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Temperature-controlled MPa-pressure ultrasonic cell manipulation in a microfluidic chip

07.07.2015 | Mathias Ohlin; Ida Iranmanesh; Athanasia E Christakou; Martin Wiklund, Lab on a Chip, 2015

We study the temperature-independent impact on cell viability of relevant physical parameters during long-term, high-acoustic-pressure ultrasonic exposure in a microfluidic chip designed for ultrasonic-standing-wave trapping and aggregation of cells. We use a light-intensity method and 5 μm ...

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Interfacial reactions of a MAX phase/superalloy hybrid

29.06.2015 | James L. Smialek, Anita Garg, Surface and Interface Analysis, 2015

Oxidation resistant, strain tolerant MAX phase coatings are of general interest for high temperature applications. Accordingly, Cr2AlC MAX phase coupons were vacuum diffusion bonded to an advanced turbine disk alloy at 1100 °C for compatibility studies. The interface revealed an inner ...

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Overtone and combination features of G and D peaks in resonance Raman spectroscopy of the C78H26 polycyclic aromatic hydrocarbon

26.06.2015 | A. Maghsoumi, L. Brambilla, C. Castiglioni, K. Müllen, M. Tommasini, Journal of Raman Spectroscopy, 2015

We have studied the Raman spectra of C78H26, a polycyclic aromatic hydrocarbon with D2h symmetry point group resembling a longitudinally confined graphene ribbon (or a graphene island) with armchair edge. The experimental spectra recorded with several excitation laser lines have been compared ...

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Experimental determination of CO2 diffusion coefficient in aqueous solutions under pressure at room temperature via Raman spectroscopy: impact of salinity (NaCl)

25.06.2015 | Clément Belgodere, Jean Dubessy, Denis Vautrin, Marie‐Camille Caumon, Jérôme Sterpenich, Jacques Pironon, Pascal Rob ..., Journal of Raman Spectroscopy, 2015

The accurate determination of the diffusion coefficient of dissolved CO2 in aqueous solutions is a key parameter to predict the transport of the dissolved gas in the aqueous solution of porous aquifers and caprocks in the context of the mitigation of greenhouse gases emissions. A better ...

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Sensors, Vol. 15, Pages 14981-15005: Observed Thermal Impacts of Wind Farms Over Northern Illinois

25.06.2015 | Slawsky, Lauren M.; Zhou, Liming ; Roy, Somnath Baidya; Xia, Geng ; Vuille, Mathias ; Harris, Ronald A., Sensors, 2015

This paper assesses impacts of three wind farms in northern Illinois using land surface temperature (LST) data from the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments onboard the Terra and Aqua satellites for the period 2003–2013. Changes in LST between two periods (before and ...

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Development of a method using high‐performance liquid chromatographic fingerprint and multi‐ingredients quantitative analysis for the quality control of Yangxinshi Pian

24.06.2015 | Yerui Li, Kai Yang, Qiyuan Shi, Bowen Liu, Ye Jin, Xuesong Liu, Zuolin Jiang, Lianjun Luan, Yongjiang Wu, Journal of Separation Science, 2015

A simple and reliable method of high‐performance liquid chromatography with diode array detection was developed for fingerprint analysis and simultaneous determination of six compounds including puerarin, salvianolic acid B, berberine hydrochloride, palmatine chloride, dehydrocorydaline and ...

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Study of spin–phonon coupling in LiFe1 − xMnxPO4olivines

24.06.2015 | Nguyen Thi Minh Hien, Joo Hee Chung, Xiang‐Bai Chen, Woo Jun Kwon, Chul Sung Kim, In‐Sang Yang, Journal of Raman Spectroscopy, 2015

Abstract LiFe1 − xMnxPO4 olivines are promising material for improved performance of Li‐ion batteries. Spin–phonon coupling of LiFe1 − xMnxPO4 (x = 0, 0.3, 0.5) olivines is studied through temperature‐dependent Raman spectroscopy. Among the observed phonon modes, the external mode at ~263 cm−1 ...

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Optimizing the relationship between chromatographic efficiency and retention times in temperature‐programmed gas chromatography

23.06.2015 | Svein A. Mjøs, Habtewold D. Waktola, Journal of Separation Science, 2015

A methodology that can maximise the chromatographic efficiency that can be achieved within a defined time frame in temperature‐programmed gas chromatography is described. The efficiency can be defined as the inverse of peak widths measured in retention index units. This parameter can be ...

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Unified chromatography: Fundamentals, instrumentation and applications

23.06.2015 | Meire R. Silva, Felipe N. Andrade, Bruno H. Fumes, Fernando M. Lanças, Journal of Separation Science, 2015

The concept of unified chromatography has been in existence for 50 years after the work of Giddings proposing that all modes of chromatography (gas chromatography, liquid chromatography, supercritical fluid chromatography and so on) may be treated together under a single unified theory. His idea ...

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Optimization of microwave‐assisted extraction for six inorganic and organic arsenic species in chicken tissues using response surface methodology

23.06.2015 | Wenfeng Zhang, Yuanan Hu, Hefa Cheng, Journal of Separation Science, 2015

Response surface methodology was applied to optimize the parameters for microwave‐assisted extraction of six major inorganic and organic arsenic species (As(III), As(V), dimethyl arsenic acid, monomethyl arsenic acid, p‐arsanilic acid, and roxarsone) from chicken tissues, followed by detection ...

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