[Eve Hele Sits. Mooni talurahva tähtpäevik ; Mooni metsauudistaja ; Mooni Eestimaa raamat ] / Helja Kirber ; suomennos Katariina Suurpalo

Index Scriptorium Estoniae

Kirber, Helja

2014-01-01

Tutvustus: Sits, Eve Hele. Mooni talurahva tähtpäevik. [Tallinn] : Argo, c2011; Mooni metsauudistaja : tähelepanekuid ja lugusid metsaelust. [Tallinn] : Argo, c2012; Mooni Eestimaa raamat. [Tallinn] : Argo, c2013

Synthesis and Characterization Studies of MIL-101

Directory of Open Access Journals (Sweden)

Emine Kaya EKİNCİ

2017-12-01

Full Text Available MIL-101 is a kind of Metal Organic Frameworks (MOFs, which have attracted much attention in the past decade due to its promising application in chemical industries. MIL-101 is also known as “Porous Chromium Terephthalate”. It has very high surface area and pore volume. MIL-101 exhibits exceptional stability against moisture and other chemicals and is composed of coordinately unsaturated Cr- sites with high concentration available for catalysis and adsorption. MIL-101 was synthesized by hydrothermal method and characterized by XRD, nitrogen adsorption and desorption analyses and SEM. XRD patterns show the presence of MIL-101’s crystal structure with high surface area (~2400 m2/g. Nitrogen adsorption-desorption analyzes showed that the material exhibited mesoporous material behavior.

Coordination polymer nanobamboos of {Fe(x)In(1-x)}-MIL-88B: induced formation of a virtual In-MIL-88B.

Science.gov (United States)

Park, Shin Ae; Lee, Hee Jung; Cho, Yea Jin; Choi, Sora; Oh, Moonhyun

2014-05-05

A precise fabrication of nanobamboo structures made from hybrid coordination polymers of the type {Fex In1-x }-MIL-88B is demonstrated. The compositions of the hybrid coordination polymer nanobamboos of {Fex In1-x }-MIL-88B (x=0.06, 0.19, or 0.75) are regulated by altering the amount of metal ions used in the reactions. Interestingly, the formation of a virtual In-MIL-88B (precise structure, {Fe0.06 In0.94 }-MIL-88B), which cannot be created in a typical reaction, is induced by the assistance of a Fe-MIL-88B structure. The a and c cell parameters of {Fe0.06 In0.94 }-MIL-88B are calculated at 10.95 and 19.86 Å, respectively. These values of {Fe0.06 In0.94 }-MIL-88B are larger than those of pure Fe-MIL-88B owing to the large ionic size of In(3+) within the framework. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Highly efficient capture of iodine by Cu/MIL-101

Science.gov (United States)

Qi, Bingbing; Liu, Ying; Zheng, Tao; Gao, Qianhong; Yan, Xuewu; Jiao, Yan; Yang, Yi

2018-02-01

In order to improve the uptake capacity of MIL-101 for iodine, Cu nanoparticles doped MIL-101 were successfully synthesized through a facile method. The obtained Cu/MIL-101 was characterized by SEM, XRD, EDS, TEM, IR, TGA and BET to examine the chemical and thermal stabilities. The capture experiments for the adsorbents showed that the capture capacity of Cu/MIL-101 for volatile iodine is 342 wt%, which is higher than that of pure MIL-101. An I2 uptake of 342 wt% is the highest value reported among metal-organic frameworks. Furthermore, Cu/MIL-101 has a cycle ratio of 95% after three cycles and exhibits a better cyclicity than pure MIL-101. Meanwhile, Cu/MIL-101 shows an excellent reversible adsorption of iodine in solution.

MIL-53(Fe), MIL-101, and SBA-15 porous materials: potential platforms for drug delivery.

Science.gov (United States)

Gordon, Jeff; Kazemian, Hossein; Rohani, Sohrab

2015-02-01

Conventional drug administration suffers from several drawbacks, including a lack of specificity for diseased tissue, the necessity of large and frequent doses, and adverse side effects. Great effort is currently being devoted to developing nanoparticle-based therapeutics capable of prolonging drug administration and providing better control. Here we demonstrate the use of flexible microporous MIL-53(Fe) and mesoporous MIL-101 and SBA-15 as matrices for the adsorption and in vitro drug delivery of acetaminophen, progesterone, and stavudine. A drug loading of 20 wt.% was achieved for each of the nanomaterials using an incipient wetness impregnation procedure. BET, DSC, and XRPD analyses indicated that the entire loaded amount of each of the model drugs had successfully been incorporated within the mesoporous channels of both MIL-101 and SBA-15. DSC analysis evidenced that a portion of each of the model drugs had deposited onto the outer surface of MIL-53(Fe) particles; however, the portion of each drug that had incorporated within the microporous channels was slowly delivered in a diffusion-controlled process, which occurred over a period of up to six days for acetaminophen. These results demonstrate the unique ability of MIL-53(Fe) to adapt its porosity and optimize drug-matrix interactions. Owing to its larger pore diameters and weaker host-guest interactions, MIL-101 release times were shorter, yet still prolonged, as evidenced by the complete release of stavudine after five days. Complete release of each of the drugs from SBA-15 occurred very quickly as a result of rapid drug dissolution and diffusion out of the mesopores. Copyright © 2014 Elsevier B.V. All rights reserved.

1 küsimus noorele juhile : Mida oled õppinud oma ülemustelt? / Heidi Raamat, Erki Tiivas, Jaana Lisette Kask ... [jt.

Index Scriptorium Estoniae

2009-01-01

Küsimusele vastavad Viasat Baltikumi operatsioonide osakonna juhataja Heidi Raamat, Chrisal Trading OÜ juht Erki Tiivas, Tavidi turundusjuht Jaana Lisette Kask, Ajakirjade Kirjastuse avalike suhete juht Jaanika Käärst, logistikafirma DPD juht Tarmo Tael ning Singapuris juhtimist ja majandust õppinud Mikk Tamme

Uus nobelist : prantslane Jean-Marie Gustave Le Clézio / Kaarel Kressa

Index Scriptorium Estoniae

Kressa, Kaarel, 1983-

2008-01-01

Nobeli kirjandusauhind 2008 - prantsuse romaanikirjanik Jean-Marie Gustave Le Clézio. Sisaldab autori eesti keelde tõlgitud teoste annotatsioone: Päev, mil Beaumont tegi tutvust oma valuga : [novell] / tlk. Merike Riives (kogumikust Prantsuse novell, 1973); Kõrb / tlk. Kristiina Ross (Eesti Raamat, 1990); Diego ja Frida / tlk. Sirje Keevallik (Kunst, 2007)

Iron metal-organic frameworks MIL-88B and NH2-MIL-88B for the loading and delivery of the gasotransmitter carbon monoxide.

Science.gov (United States)

Ma, Mingyan; Noei, Heshmat; Mienert, Bernd; Niesel, Johanna; Bill, Eckhard; Muhler, Martin; Fischer, Roland A; Wang, Yuemin; Schatzschneider, Ulrich; Metzler-Nolte, Nils

2013-05-17

Crystals of MIL-88B-Fe and NH2-MIL-88B-Fe were prepared by a new rapid microwave-assisted solvothermal method. High-purity, spindle-shaped crystals of MIL-88B-Fe with a length of about 2 μm and a diameter of 1 μm and needle-shaped crystals of NH2-MIL-88B-Fe with a length of about 1.5 μm and a diameter of 300 nm were produced with uniform size and excellent crystallinity. The possibility to reduce the as-prepared frameworks and the chemical capture of carbon monoxide in these materials was studied by in situ ultrahigh vacuum Fourier-transform infrared (UHV-FTIR) spectroscopy and Mössbauer spectroscopy. CO binding occurs to unsaturated coordination sites (CUS). The release of CO from the as-prepared materials was studied by a myoglobin assay in physiological buffer. The release of CO from crystals of MIL-88B-Fe with t(1/2) = 38 min and from crystals of NH2-MIL-88B-Fe with t(1/2) = 76 min were found to be controlled by the degradation of the MIL materials under physiological conditions. These MIL-88B-Fe and NH2-MIL-88B-Fe materials show good biocompatibility and have the potential to be used in pharmacological and therapeutic applications as carriers and delivery vehicles for the gasotransmitter carbon monoxide. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Petits mils

International Development Research Centre (IDRC) Digital Library (Canada)

cinq fois moins d'eau que le riz ? Note d'analyse ... dont une teneur élevée en micronutriments et en fibres alimentaires et un indice glycémique faible. ... Malgré les qualités nutritionnelles supérieures et la résilience au climat des petits mils, ...

Feldspathic Meteorites MIL 090034 and 090070: Late Additions to the Lunar Crust

Science.gov (United States)

Nyquist, L. E.; Shirai, N.; Yamaguchi, A.; Shih, C.-Y.; Park, J.; Ebihara, M.

2016-01-01

Our studies of the Miller Range lunar meteorites MIL 090034, 090036, and 090070 show them to be a diverse suite of rocks from the lunar highlands hereafter referred to as MIL 34, MIL 36, and MIL 70, resp. MIL34 and MIL70, the focus of this work, are crystalline melt breccias. Plagioclase compositions in both peak sharply around An96-97. Mg numbers of olivine vary from 58-65 with a few higher values. MIL36 is a regolith breccia. MIL 34 and MIL 70 have some of the highest Al2O3 abundances of lunar highland meteorites, indicating that they have among the largest modal abundances of plagioclase for lunar meteorites. They have lower Sc and Cr abundances than nearly all lunar highland meteorites except Dho 081, Dho 489 and Dho 733. MIL34 and MIL70 also have similar cosmic ray exposure (CRE) ages of approximately 1-2 Ma indicating they are launch paired. (MIL36 has a larger CRE age approximately greater than 70 Ma). Park et al. found a variation in Ar-Ar ages among subsamples of MIL 34 and MIL70, but preferred ages of 3500+/-110 Ma for the "Dark" phase of MIL 34 anorthite and 3520+/-30 Ma for the "Light" phase of MIL70. Bouvier et al. reported a Pb-Pb age of 3894+/-39 Ma for a feldspathic clast of MIL 34 and a similar age for a melt lithology. Here we reexamine the Rb-Sr and Sm-Nd isotopic data, which show complexities qualitatively consistent with those of the Ar-Ar and Pb-Pb data. The Sm-Nd data in particular suggest that the feldspathic compositions of MIL 34 and MIL 70 formed during initial lunar geochemical differentiation, and REE modeling suggests a relatively late-stage formation.

Metal organic framework MIL-101(Cr) for dehydration reactions

Indian Academy of Sciences (India)

Porous chromium terephthalate MIL-101 (Cr-MIL-101) has been prepared by direct method under hydrothermal conditions and characterized using X-ray diffraction, N2 sorption, TGA and FT-IR. The nitrogen adsorption-desorption isotherm shows that the Cr-MIL-101 possesses BET specific surface area of 2563 m2/g.

Synergy of mIL-21 and mIL-15 in enhancing DNA vaccine efficacy against acute and chronic Toxoplasma gondii infection in mice.

Science.gov (United States)

Li, Zhong-Yuan; Chen, Jia; Petersen, Eskild; Zhou, Dong-Hui; Huang, Si-Yang; Song, Hui-Qun; Zhu, Xing-Quan

2014-05-23

The synergistic protective efficacy of murine interleukin 21 (mIL-21) and mIL-15 administrated with DNA vaccine against acute and chronic Toxoplasma gondii infection in mice was investigated using T. gondii MIC8 (TgMIC8) as a model. We cloned mIL-21 and mIL-15 from splenic tissues of Kunming mice, and constructed eukaryotic plasmid pVAX/mIL-15, pVAX/mIL-21, and pVAX/mIL-21/mIL-15, respectively. After immunizing with pVAX/TgMIC8 in the presence or absence of these cytokines, immune responses were analyzed using lymphoproliferative assay, cytokine and serum antibody measurements, flow cytometric surface markers on lymphocytes and protection against acute and chronic T. gondii infection. Mice receiving pVAX/TgMIC8 alone developed a strong humoral responses and Th1 type cellular immune responses, and showed an increase of CD4+ and CD8+ T cells compared with all the controls. Adding pVAX/mIL-21 to pVAX/TgMIC8 compared to pVAX/TgMIC8 resulted in only a slight increase in humoral and cellular immune responses, and this immune response was lower than that induced by the pVAX/mIL-15 combined with pVAX/TgMIC8. Co-administration of pVAX/mIL-21/mIL-15 combined with pVAX/TgMIC8 elicited the strongest humoral and cellular immune responses among all the groups, leading to significantly increased survival time against acute infection and the significant reduction of tissue cysts, compared to all the controls. Synergy of mIL-21 and mIL-15 can facilitate specific humoral as well as cellular immune responses elicited by DNA vaccine against acute and chronic T. gondii infection in mice. Copyright © 2014 Elsevier Ltd. All rights reserved.

The flexibility of modified-linker MIL-53 materials.

Science.gov (United States)

Munn, Alexis S; Pillai, Renjith S; Biswas, Shyam; Stock, Norbert; Maurin, Guillaume; Walton, Richard I

2016-03-14

The flexibility of eight aluminium hydroxo terephthalates [Al(OH)(BDC-X)]·n(guest) (BDC = 1,4-benzene-dicarboxylate; X = -H, -CH3, -Cl, -Br, -NH2, -NO2, -(OH)2, -CO2H) crystallising in the MIL-53-type structure was investigated upon thermal dehydration of as-made samples, superhydration and methanol adsorption/desorption using in situ powder X-ray diffraction (PXRD). Profile fitting was used to determine lattice parameters as a function of time and/or temperature to describe their structural evolution. It has thus been shown that while methanol vapour adsorption induces an opening of all the modified frameworks, except the -NH2 material, superhydration only leads to open structures for Al-MIL-53-NO2, -Br and -(OH)2. All the MIL-53 solids, except Al-MIL-53-(OH)2 are present in the open structures upon thermal dehydration. In addition to the exploration of the breathing behavior of this MIL-53 series, the issue of disorder in the distribution of the functional groups between the organic linkers was explored. As a typical illustration, density functional theory calculations were carried out on different structures of Al-MIL-53-Cl, in which the distribution of -Cl within two adjacent BDC linkers is varied. The results show that the most energetically stable configuration leads to the best agreement with the experimental PXRD pattern. This observation supports that the distribution of the selected linker substituent in the functionalised solid is governed by energetics and that there is a preference for an ordering of this arrangement.

Compact, Low-Overhead, MIL-STD-1553B Controller

Science.gov (United States)

Katz, Richard; Barto, Rod

2009-01-01

A compact and flexible controller has been developed to provide MIL-STD- 1553B Remote Terminal (RT) communications and supporting and related functions with minimal demand on the resources of the system in which the controller is to be installed. (MIL-STD-1553B is a military standard that encompasses a method of communication and electrical-interface requirements for digital electronic subsystems connected to a data bus. MIL-STD-1553B is commonly used in defense and space applications.) Many other MIL-STD-1553B RT controllers are complicated, and to enable them to function, it is necessary to provide software and to use such ancillary separate hardware devices as microprocessors and dual-port memories. The present controller functions without need for software and any ancillary hardware. In addition, it contains a flexible system interface and extensive support hardware while including on-chip error-checking and diagnostic support circuitry. This controller is implemented within part of a modern field-programmable gate array.

MEMS and mil/aero: technology push and market pull

Science.gov (United States)

Clifford, Thomas H.

2001-04-01

MEMS offers attractive solutions to high-density fluidics, inertial, optical, switching and other demanding military/aerospace (mil/aero) challenges. However, full acceptance must confront the realities of production-scale producibility, verifiability, testability, survivability, as well as long-term reliability. Data on these `..ilities' are crucial, and are central in funding and deployment decisions. Similarly, mil/aero users must highlight specific missions, environmental exposures, and procurement issues, as well as the quirks of its designers. These issues are particularly challenging in MEMS, because of the laws of physics and business economics, as well as the risks of deploying leading-edge technology into no-fail applications. This paper highlights mil/aero requirements, and suggests reliability/qualification protocols, to guide development effort and to reassure mil/aero users that MEMS labs are mindful of the necessary realities.

Hydrothermal crystal growth and Vernier structures of the metal benzenedicarboxylates MIL-47 and MIL-53 containing guest molecules of benzenecarboxylic acid

International Nuclear Information System (INIS)

Wang, Xiqu; Jacobson, Allan J.

2016-01-01

The nanoporous frameworks VO(bdc), MIL-47, and M(OH)(bdc), MIL-53; bdc=1,4-benzenedicarboxylate, can absorb various guest species in their channels. As synthesized, the channels are filled with H 2 bdc molecules that have been reported to be disordered, except for [In(OH)bdc](H 2 bdc) 3/4 , 1, which has a inorganic-organic hybrid Vernier structure with the H 2 bdc molecules forming an ordered sublattice. Based on X-ray data from large single crystals grown by hydrothermal techniques, similar Vernier structures have been found for MIL-47, [VO(bdc)](H 2 bdc) 5/7 , 2, MIL-53Al, [Al(OH)(bdc)](H 2 bdc) 11/16 , 3, and MIL-53Ga, [Ga(OH)(bdc)](H 2 bdc) 12/17 , 4. The Vernier structures of 2–4 at room temperature were determined based on superstructure unit cells that index both host and guest sublattices: 2, space group P2 1 , a=23.903(2), b=17.191(2), c=25.722(2) Å, β=105.914(8)°; 3, P2 1 /n, a=105.224(4), b=12.2441(5), c=17.0143(6) Å, β=89.99(1)°; 4, P2 1 , a=114.562(5), b=12.1503(5), c=17.4275(7) Å, β=89.99(1)°. The number of guest H 2 bdc molecules per framework metal ion is determined by the ratio of the repeat distances of the two sublattices which depends on the size of the metal ion in the octahedral chain. The octahedral chains are parallel to [201] in 2, and to [100] in 3 and 4. Remarkably, all atoms in 3 and 4 show significant sinusoidal modulations transverse to the chain axis. - Graphical abstract: The sinusoidal modulation along the channel axis direction involving all atoms in the structure of [Al(OH)(bdc)](H 2 bdc) 11/16 . - Highlights: • Crystal growth of MIL-47, MIL-53Al, and MIL-53Ga. • The Vernier structures have corner-sharing MO6 octrahedral chains and chains of H2BDC molecules. • The stoichiometry is determined by the ratio of the host framework to the guest H2BDC column lengths. • A correlation is established between the stoichiometry and the radius of the metal ion. • All atoms in the Al and Ga compounds show sinusoidal

Kas ja kuidas tähistatakse teil töökohas sünnipäevi? / Tõnis Kusmin, Lilian Viirma, Triin Raamat ... [jt.

Index Scriptorium Estoniae

2010-01-01

Küsimusele vastavad DAS Õigusabikulude Kindlustuse Lääne-Eesti müügijuht Tõnis Kusmin, Elioni avalike suhete juht Lilian Viirma, personaliotsingufirma CVO Recruitment juht Triin Raamat, Nordecon Betoon OÜ juht Toomas Toompuu, Columbus IT Partneri Eesti AS tegevjuht Gristel Tali ja ettevõttes Puhastusekspert koolitajana töötav Kurmet Vasser

Hydrothermal crystal growth and Vernier structures of the metal benzenedicarboxylates MIL-47 and MIL-53 containing guest molecules of benzenecarboxylic acid

Energy Technology Data Exchange (ETDEWEB)

Wang, Xiqu; Jacobson, Allan J., E-mail: ajjacob@uh.edu

2016-04-15

The nanoporous frameworks VO(bdc), MIL-47, and M(OH)(bdc), MIL-53; bdc=1,4-benzenedicarboxylate, can absorb various guest species in their channels. As synthesized, the channels are filled with H{sub 2}bdc molecules that have been reported to be disordered, except for [In(OH)bdc](H{sub 2}bdc){sub 3/4}, 1, which has a inorganic-organic hybrid Vernier structure with the H{sub 2}bdc molecules forming an ordered sublattice. Based on X-ray data from large single crystals grown by hydrothermal techniques, similar Vernier structures have been found for MIL-47, [VO(bdc)](H{sub 2}bdc){sub 5/7}, 2, MIL-53Al, [Al(OH)(bdc)](H{sub 2}bdc){sub 11/16}, 3, and MIL-53Ga, [Ga(OH)(bdc)](H{sub 2}bdc){sub 12/17}, 4. The Vernier structures of 2–4 at room temperature were determined based on superstructure unit cells that index both host and guest sublattices: 2, space group P2{sub 1}, a=23.903(2), b=17.191(2), c=25.722(2) Å, β=105.914(8)°; 3, P2{sub 1}/n, a=105.224(4), b=12.2441(5), c=17.0143(6) Å, β=89.99(1)°; 4, P2{sub 1}, a=114.562(5), b=12.1503(5), c=17.4275(7) Å, β=89.99(1)°. The number of guest H{sub 2}bdc molecules per framework metal ion is determined by the ratio of the repeat distances of the two sublattices which depends on the size of the metal ion in the octahedral chain. The octahedral chains are parallel to [201] in 2, and to [100] in 3 and 4. Remarkably, all atoms in 3 and 4 show significant sinusoidal modulations transverse to the chain axis. - Graphical abstract: The sinusoidal modulation along the channel axis direction involving all atoms in the structure of [Al(OH)(bdc)](H{sub 2}bdc){sub 11/16}. - Highlights: • Crystal growth of MIL-47, MIL-53Al, and MIL-53Ga. • The Vernier structures have corner-sharing MO6 octrahedral chains and chains of H2BDC molecules. • The stoichiometry is determined by the ratio of the host framework to the guest H2BDC column lengths. • A correlation is established between the stoichiometry and the radius of the metal ion

Navy.mil - Photo Galleries

Science.gov (United States)

Personnel Command (NPC) Navy SAPR Navy EEO Inclusion And Diversity Navy Standard Integrated Personnel System (OPSEC) Navy Trademarks Military One Source USA.gov U.S. Office of Special Counsel Social Media Directory Links Navy Reserve Navy.mil Underway Navy Personnel Command (NPC) Navy SAPR Navy EEO Inclusion And

Bivalent metal-based MIL-53 analogues: Synthesis, properties and application

International Nuclear Information System (INIS)

Liu, Yongxin; Liu, Dan; Wang, Cheng

2015-01-01

Trivalent metal-based MIL-53 (Al 3+ , Cr 3+ , Fe 3+ , In 3+ ) compounds are interesting metal–organic frameworks (MOFs) with breathing effect and are promising gas sorption materials. Replacing bridging μ 2 -OH group by neutral ligands such as pyridine N-oxide and its derivatives (PNOs), the trivalent metal-based MIL-53 analogous structures could be extended to bivalent metal systems. The introduction of PNOs and bivalent metal elements endows the frameworks with new structural features and physical and chemical properties. This minireview summarizes the recent development of bivalent metal-based MIL-53 analogues (Mn 2+ , Co 2+ , Ni 2+ ), typically, focusing on the synthetic strategies and potential applications based on our own works and literatures. We present the synthetic strategy to achieve structures evolution from single-ligand-walled to double-ligand-walled channel. Properties and application of these new materials in a wide range of potential areas are discussed including thermal stability, gas adsorption, magnetism and liquid-phase separation. Promising directions of this research field are also highlighted. - Graphical abstract: The recent development of bivalent metal-based MIL-53 analogues (Mn 2+ , Co 2+ , Ni 2+ ) on their synthetic strategies, properties and potential applications was reviewed. - Highlights: • Structure features of bivalent metal-based MIL-53 analogues are illustrated. • Important properties and application are presented. • Host–guest interactions are main impetus for liquid-phase separation. • Promising directions of bivalent metal-based MIL-53 analogues are highlighted

Study on adsorption refrigeration performance of MIL-101-isobutane working pair

International Nuclear Information System (INIS)

Ma, Liejun; Yang, Huan; Wu, Qi; Yin, Yu; Liu, Zongjian; Cui, Qun; Wang, Haiyan

2015-01-01

Rising concerns about pro-environment and energy conservation bring about the escalating interests in adsorption cooling systems using renewable energy. Adsorption chillers with common refrigerants (water, ethanol, methanol, etc.) face the problem that advanced technologies and intricate design considerations are required to maintain high vacuum. This paper aims at the parameters optimization of adsorption system being operated with the novel working pair, MIL-101-isobutane, under typical conditions of ice making and air-condition. Adsorption isotherms and dynamic of isobutane on MIL-101 are discussed simultaneously. When the hot water inlet temperature, cooling water temperature and desorption time are 95 °C, 30 °C and 30 min, respectively, the cooling capacity is 45.7 kJ/kg, which is 1.7 times as much as that of activated carbon–isobutane pair. Structural stability of MIL-101 subjected to 500 times adsorption/desorption cycles has been successfully verified by XRD (X-ray diffraction). - Highlights: • Adsorption isotherms and kinetic of isobutane on MIL-101 were studied. • A single bed adsorption chiller with MIL-101-isobutane pair was built. • System performed better than that using activated carbon–isobutane pair. • Stability of MIL-101 subjected to 500 ad/desorption cycles has been verified.

Hydrogen storage behaviors of Ni-doped graphene Oxide/MIL-101 hybrid composites.

Science.gov (United States)

Lee, Seul-Yi; Park, Soo-Jin

2013-01-01

In this work, Ni-doped graphene oxide/MIL-101 hybrid composites (Ni--GO/MIL) were prepared to investigate their hydrogen storage behaviors. Ni--GO/MIL was synthesized by adding Ni--GO in situ during the synthesis of MIL-101 using a hydrothermal process, which was conducted by conventional convection heating with Cr(III) ion as a metal center and telephthalic acid as organic ligands. The crystalline structures and morphologies were measured by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The specific surface area and micropore volume were investigated by N2/77 K adsorption isotherms using the Brunauer-Emmett-Teller (BET) method and Dubinin-Radushkevic (D-R) equation, respectively. The hydrogen storage capacity was investigated by BEL-HP at 77 K and 1 bar. The obtained results show that Ni--GO/MIL presents new directions for achieving novel hybrid materials with higher hydrogen storage capacity.

Adsorptive removal of dibenzothiophene from model fuels over one-pot synthesized PTA@MIL-101(Cr) hybrid material

Energy Technology Data Exchange (ETDEWEB)

Jia, Shao-Yi; Zhang, Yan-Fei [School of Chemical Engineering and Technology, Tianjin University, Tianjin (China); Liu, Yong [School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin (China); Qin, Feng-Xiang; Ren, Hai-Tao [School of Chemical Engineering and Technology, Tianjin University, Tianjin (China); Wu, Song-Hai, E-mail: songhaiwu@gmail.com [School of Chemical Engineering and Technology, Tianjin University, Tianjin (China)

2013-11-15

Highlights: • One-pot synthesized PTA@MIL-101(Cr) shows high capacity of benzothiophene. • PTA/MIL-101(Cr) obtained via post-modification performs poor in the adsorption. • PTA and MIL-101(Cr) exhibit synergetic effect on adsorption of benzothiophene. • In the presence of aromatics, PTA@MIL-101(Cr) and MIL-101(Cr) remain their capacity. • PTA-dispersed MOFs adsorb dibenzothiophene through acid–base interaction. -- Abstract: Hybrid nanomaterials comprising phosphotungstic acid (PTA) and MIL-101(Cr) were prepared through one-pot synthesis and post-modification methods and then were used as adsorbents of dibenzothiophene (DBT) from simulated diesel fuels. Samples obtained by different ways (encapsulation and impregnation) were characterized by nitrogen adsorption, transmission electron microscope (TEM), X-ray diffraction (XRD), Fourier transform infrared spectrum (FT-IR) and series of adsorption experiments. The equilibrium adsorption capacities of PTA@MIL-101(Cr) illustrated that the direct introduction of PTA into MIL-101(Cr) during synthesis resulted in a 10.7% increase compared with MIL-101(Cr). However, porous hybrid adsorbent PTA/MIL-101(Cr) prepared via post-modification method exhibited lower adsorption capacity than virgin MIL-101(Cr). The theoretical maximum adsorption capacity (Q{sub 0}) of PTA@MIL-101(Cr) is 136.5 mg S/g adsorbent, 4.2 times of MIL-101(Cr). Even in competitive adsorption between aromatic compounds, which possess strong affinity with MOFs, and DBT, PTA@MIL-101(Cr) and MIL-101(Cr) remained their effectiveness in removal of DBT in the system. Based on these results, it can be presumed that MIL-101(Cr), modified properly, can be used as a promising adsorbent for eliminating aromatics and S-compounds in commercial fuels simultaneously.

Anti-UV Radiation Textiles Designed by Embracing with Nano-MIL (Ti, In)-Metal Organic Framework.

Science.gov (United States)

Emam, Hossam E; Abdelhameed, Reda M

2017-08-23

Protective textiles against harmful solar radiation are quite important materials for outdoor workers to secure their skin from several diseases. Current report focuses on production of anti-ultraviolet radiation (UVR) textiles by incorporation of nano-metal-organic frameworks (n-MOFs). Two different MIL-MOFs, namely, MIL-68(In)-NH 2 and MIL-125(Ti)-NH 2 , were immediately formed inside natural textiles (cotton and silk) matrix in nano size using quite simple and one-pot process. The formation of n-MIL-MOFs inside textiles were confirmed by using electron microscope and X-ray diffraction. Different size and morphology were seen depending on textile type reflecting the textiles' chemical composition role in the nature of prepared MIL-MOFs. For MIL-68(In)-NH 2 , particles with size distribution of 70.6-44.5 nm in cotton and 81.3-52.2 nm in silk were detected, while crystalline disc of MIL-125(Ti)-NH 2 was clearly seen inside textiles. The natural textiles exhibited full UVR blocking after modification, and the UV protection factor (UPF) was linearly proportional with MIL-MOFs and metal contents. Whatever metal type, direct incorporation of MIL-MOF contents greater than or equal to 10.4 g/kg was sufficient to attain excellent UV blocking property. Although 38.5-41.0% of MIL-MOFs was lost during five washings, the washed samples showed very good blocking rate (UPF = 26.7-36.2) supporting good laundering durability.

Late Bombardment of the Lunar Highlands Recorded in MIL 090034, MIL 090036 and MIL 090070 Lunar Meteorites

Science.gov (United States)

Park, J.; Nyquist, L. E.; Shih, C.-Y.; Herzog, G. F.; Yamaguchi, A.; Shirai, N.; Ebihara, M.; Lindsay, F. N.; Delaney, J.; Turrin, B.;

Fracture toughness of Ceramic-Fiber-Reinforced Metallic-Intermetallic-Laminate (CFR-MIL) composites

International Nuclear Information System (INIS)

Vecchio, Kenneth S.; Jiang, Fengchun

2016-01-01

Novel Ceramic-Fiber-Reinforced-Metal-Intermetallic-Laminate (CFR-MIL) composites, Ti–Al 3 Ti–Al 2 O 3 –Al, were synthesized by reactive foil sintering in air. Microstructure controlled material architectures were achieved with continuous Al 2 O 3 fibers oriented in 0° and 90° layers to form fully dense composites in which the volume fractions of all four component phases can be tailored. Bend fracture specimens were cut from the laminate plates in divider orientation, and bend tests were performed to study the fracture behavior of CFR-MIL composites under three-point and four-point bending loading conditions. The microstructures and fractured surfaces of the CFR-MIL composites were examined using optical microscopy and scanning electron microscopy to establish a correlation between the fracture toughness, fracture surface morphology and microstructures of CFR-MIL composites. The fracture and toughening mechanisms of the CFR-MIL composites are also addressed. The present experimental results indicate that the fracture toughness of CFR-MIL composites determined by three- and four-point bend loading configurations are quite similar, and increased significantly compared to MIL composites without ceramic fiber reinforcement. The interface cracking behavior is related to the volume fraction of the brittle Al 3 Ti phase and residual ductile Al, but the fracture toughness values appear to be insensitive to the ratio of these two phases. The toughness appears to be dominated by the ductility/strength of the Ti layers and the strength and crack bridging effect of the ceramic fibers.

Curation and Allocation of the New Antarctic Nakhlite, MIL03346

Science.gov (United States)

McBride, K. M.; Righter, K.; Satterwhite, C. E.; Schwarz, C.; Robinson, P.

2005-01-01

In January 2004, the ANSMET reconnaissance field team (Fig. 1) working in the Miller Range of the Transantarctic Mountains discovered a 715 g achondrite that was instantly recognized as unique. Named MIL03346, initial processing (NASA Johnson Space Center or JSC) and classification (Smithsonian Institution or SI) revealed this achondrite to be a nakhlite (Fig. 2). MIL03346 is the seventh nakhlite recognized in world collections [2], the third nakhlite returned from Antartica, and the first nakhlite in the US Antarctic collection (Table 1). The following is a summary of the steps taken in the processing and allocating of MIL 03346 and some comparisons to some other lunar and martian meteorites processed and allocated at JSC.

Application of Metal-Organic Framework Nano-MIL-100(Fe) for Sustainable Release of Doxycycline and Tetracycline.

Science.gov (United States)

Taherzade, Seyed Dariush; Soleimannejad, Janet; Tarlani, Aliakbar

2017-08-06

Nanostructures of MIL-100 were synthesized and used as a drug delivery platform for two members of the Tetracycline family. Doxycycline monohydrate (DOX) and Tetracycline hydrochloride (TC) were loaded separately on nano-MIL-100 (nanoparticles of drug@carrier were abbreviated as DOX@MIL-100 and TC@MIL-100). Characterizations were carried out using FT-IR, XRD, BET, DLS, and SEM. The FT-IR spectra revealed that the drugs were loaded into the framework of the carrier. The XRD patterns of DOX@MIL-100 and TC@MIL-100 indicated that no free DOX or TC were present. It could be concluded that the drugs are well dispersed into the pores of nano-MIL-100. The microporosity of the carrier was confirmed by BJH data. BET analysis showed a reduction in the free surface for both DOX@MIL-100 and TC@MIL-100. The release of TC and DOX was investigated, and it was revealed that MIL-100 mediated the drug solubility in water, which in turn resulted in a decrease in the release rate of TC (accelerating in DOX case) without lowering the total amount of released drug. After 48 h, 96 percent of the TC was sustain released, which is an unprecedented amount in comparison with other methods.

MIL-68 (In) nano-rods for the removal of Congo red dye from aqueous solution.

Science.gov (United States)

Jin, Li-Na; Qian, Xin-Ye; Wang, Jian-Guo; Aslan, Hüsnü; Dong, Mingdong

2015-09-01

MIL-68 (In) nano-rods were prepared by a facile solvothermal synthesis using NaOAc as modulator agent at 100°C for 30 min. The BET test showed that the specific surface area and pore volume of MIL-68 (In) nanorods were 1252 m(2) g(-1) and 0.80 cm(3) g(-1), respectively. The as-prepared MIL-68 (In) nanorods showed excellent adsorption capacity and rapid adsorption rate for removal of Congo red (CR) dye from water. The maximum adsorption capacity of MIL-68 (In) nanorods toward CR reached 1204 mg g(-1), much higher than MIL-68 (In) microrods and most of the previously reported adsorbents. The adsorption process of CR by MIL-68 (In) nano-rods was investigated and found to be obeying the Langmuir adsorption model in addition to pseudo-second-order rate equation. Moreover, the MIL-68 (In) nanorods showed an acceptable reusability after regeneration with ethanol. All information gives an indication that the as-prepared MIL-68 (In) nanorods show their potential as the adsorbent for highly efficient removal of CR in wastewater. Copyright © 2015 Elsevier Inc. All rights reserved.

Multifunctional polyoxometalates encapsulated in MIL-100(Fe): highly efficient photocatalysts for selective transformation under visible light.

Science.gov (United States)

Liang, Ruowen; Chen, Rui; Jing, Fenfen; Qin, Na; Wu, Ling

2015-11-07

H3PMo12O40 molecules have been successfully encapsulated in the cavities of MIL-100(Fe) via a facile hydrothermal method (denoted as HPMo@MIL-100(Fe)). A series of characterization has corroborated the insertion of H3PMo12O40 within the cavities of MIL-100(Fe). The resulting HPMo@MIL-100(Fe) nanocomposites have exhibited much higher photoactivity than the original-MIL-100(Fe) toward the photocatalytic selective oxidation of benzylic alcohols and the reduction of Cr(vi) under visible light irradiation (λ≥ 420 nm). The higher photoactivity of HPMo@MIL-100(Fe) can be attributed to the integrative effect of enhanced light absorption intensity and more efficient separation of photogenerated electron-hole pairs. The host porous structure of MIL-100(Fe) can achieve a uniform composition with H3PMo12O40, which is significantly important for producing highly reactive dispersed H3PMo12O40 molecules and enhancing the photocatalytic activity of HPMo@MIL-100(Fe) nanocomposites. And the immobilized H3PMo12O40 molecules are more convenient for recycling. Importantly, almost no Fe and Mo ions leach from the MIL-100(Fe) during the reaction, which verifies the photostability of the HPMo@MIL-100(Fe). In addition, possible photocatalytic redox reaction mechanisms have been investigated.

Synthesis of MIL-100(Fe at Low Temperature and Atmospheric Pressure

Directory of Open Access Journals (Sweden)

Jing Shi

2013-01-01

Full Text Available MIL-100(Fe, a mesoporous metal-organic framework (MOF, has a large BET specific surface area and pore volume with the presence of a significant amount of accessible Lewis acid metal sites upon dehydration. The structural characteristics of MIL-100(Fe make it a good candidate for potential applications in gas storage, separation, and heterogeneous catalysis. Mainly, this MOF is obtained by the hydrothermal synthesis in a Teflon-lined autoclave at high temperature (>150°C under static conditions. However, this method has several disadvantages such as high temperature, high (autogenous pressure, long time, and comparable low MOF yield. Therefore, development of a facile method for synthesis of MIL-100(Fe is vitally important for fundamental understanding and practical application. Herein, MIL-100(Fe is synthesized by a facile low-temperature (90% still could be achieved, suggesting that this simple and energy saving method has the potential to be used practically.

Adsorptive removal of dibenzothiophene from model fuels over one-pot synthesized PTA@MIL-101(Cr) hybrid material.

Science.gov (United States)

Jia, Shao-Yi; Zhang, Yan-Fei; Liu, Yong; Qin, Feng-Xiang; Ren, Hai-Tao; Wu, Song-Hai

2013-11-15

Hybrid nanomaterials comprising phosphotungstic acid (PTA) and MIL-101(Cr) were prepared through one-pot synthesis and post-modification methods and then were used as adsorbents of dibenzothiophene (DBT) from simulated diesel fuels. Samples obtained by different ways (encapsulation and impregnation) were characterized by nitrogen adsorption, transmission electron microscope (TEM), X-ray diffraction (XRD), Fourier transform infrared spectrum (FT-IR) and series of adsorption experiments. The equilibrium adsorption capacities of PTA@MIL-101(Cr) illustrated that the direct introduction of PTA into MIL-101(Cr) during synthesis resulted in a 10.7% increase compared with MIL-101(Cr). However, porous hybrid adsorbent PTA/MIL-101(Cr) prepared via post-modification method exhibited lower adsorption capacity than virgin MIL-101(Cr). The theoretical maximum adsorption capacity (Q0) of PTA@MIL-101(Cr) is 136.5mg S/g adsorbent, 4.2 times of MIL-101(Cr). Even in competitive adsorption between aromatic compounds, which possess strong affinity with MOFs, and DBT, PTA@MIL-101(Cr) and MIL-101(Cr) remained their effectiveness in removal of DBT in the system. Based on these results, it can be presumed that MIL-101(Cr), modified properly, can be used as a promising adsorbent for eliminating aromatics and S-compounds in commercial fuels simultaneously. Copyright © 2013 Elsevier B.V. All rights reserved.

Molecular simulations of a CO2/CO mixture in MIL-127

Science.gov (United States)

Chokbunpiam, Tatiya; Fritzsche, Siegfried; Parasuk, Vudhichai; Caro, Jürgen; Assabumrungrat, Suttichai

2018-03-01

Adsorption and diffusion of an equimolar feed mixture of CO2 and CO in MIL-127 at three different temperatures and pressures up to 12 bar were investigated by molecular simulations. The adsorption was simulated using Gibbs-Ensemble Monte Carlo (GEMC). The structure of the adsorbed phase and the diffusion in the MIL were investigated using Molecular Dynamics (MD) simulations. The adsorption selectivity of MIL-127 for CO2 over CO at 233 K was about 15. When combining adsorption and diffusion selectivities, a membrane selectivity of about 12 is predicted. For higher temperatures, both adsorption and diffusion selectivity are found to be smaller.

MIL-53(Fe) MOF-mediated catalytic chemiluminescence for sensitive detection of glucose.

Science.gov (United States)

Yi, Xueling; Dong, Wenfei; Zhang, Xiaodan; Xie, Jianxin; Huang, Yuming

2016-12-01

Various analytical applications of metal-organic frameworks (MOFs) have been rapidly developed in the past few years. However, the employment of MOFs as catalysts in chemiluminescence (CL) analysis is rare. Here, for the first time, we found that MIL-53(Fe) MOFs could significantly enhance the CL of luminol in the presence of H 2 O 2 in an alkaline medium. The CL intensity in the luminol-H 2 O 2 -MIL-53(Fe) system was about 20 times higher than that in the luminol-H 2 O 2 system. Moreover, the XRD pattern of MIL-53(Fe) after CL reaction was almost the same as that of the original MIL-53(Fe), confirming the catalytic role of MIL-53(Fe) in the luminol-H 2 O 2 -MIL-53(Fe) system. The possible mechanism behind the enhancing phenomenon was discussed based on the results from the CL spectra, FL probe experiments, and active oxygen species measurements. By coupling with the glucose oxidase-based catalytic oxidation reaction, a sensitive and selective CL method was developed for the detection of glucose. There is a linear relationship between the logarithm of CL intensity and the logarithm of glucose concentration in the range from 0.1 to 10 μM, and a detection limit of 0.05 μM (S/N = 3) is obtained. The proposed method has been applied to the determination of glucose in human serum samples with satisfactory results. Graphical abstract MIL-53(Fe) MOFs are found to greatly enhance the chemiluminescence emission of the luminol-H 2 O 2 system, and this finding resulted in a new chemiluminescence method for biosensing of glucose when coupled with the glucose oxidase.

Organic Linker Defines the Excited-State Decay of Photocatalytic MIL-125(Ti)-Type Materials.

Science.gov (United States)

Santaclara, Jara G; Nasalevich, Maxim A; Castellanos, Sonia; Evers, Wiel H; Spoor, Frank C M; Rock, Kamila; Siebbeles, Laurens D A; Kapteijn, Freek; Grozema, Ferdinand; Houtepen, Arjan; Gascon, Jorge; Hunger, Johannes; van der Veen, Monique A

2016-02-19

Recently, MIL-125(Ti) and NH2 -MIL-125(Ti), two titanium-based metal-organic frameworks, have attracted significant research attention in the field of photocatalysis for solar fuel generation. This work reveals that the differences between these structures are not only based on their light absorption range but also on the decay profile and topography of their excited states. In contrast to MIL-125(Ti), NH2 -MIL-125(Ti) shows markedly longer lifetimes of the charge-separated state, which improves photoconversion by the suppression of competing decay mechanisms. We used spectroelectrochemistry and ultrafast spectroscopy to demonstrate that upon photoexcitation in NH2 -MIL-125(Ti) the electron is located in the Ti-oxo clusters and the hole resides on the aminoterephthalate unit, specifically on the amino group. The results highlight the role of the amino group in NH2 -MIL-125(Ti), the electron donation of which extends the lifetime of the photoexcited state substantially. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

CO2/CH4 Separation by a Mixed Matrix Membrane of Polymethylpentyne/MIL-53 Particles

Directory of Open Access Journals (Sweden)

Reza Abedini

2014-10-01

Full Text Available The effect of Materials Institute Lavoisier-53 (MIL-53 particles on gas transport properties of polymethylpentyne (PMP was investigated. MIL-53 was added to the polymer matrix with different loadings of 10, 20 and 30 wt%. The properties of MIL-53 and prepared membranes were analyzed through FTIR, SEM and TGA methods. The adsorption of CO2 and CH4 was conducted and analyzed accurately through Langmuir equation to investigate the gas transport properties of membranes. The results from TGA showed that degradation temperature (Td increases significantly with increasing MIL-53 loading. SEM images demonstrated that MIL-53 particles dispersed well in polymer matrix with no considerable agglomeration and no non-selective void formation at polymer/filler interface. In addition, CO2 and CH4 permeability measurement along with calculation of CO2/CH4 selectivity were performed. The results showed that the permeability of gases (especially for CO2 increased significantly by increasing the MIL-53 loading. Additionally, CO2/CH4 selectivity showed an increasing trend with increasing the MIL-53 weight percent. Unlike CH4, the CO2 solubility coefficient increased with increasing the MIL-53 loading because of high free volume of membrane and selective adsorption of CO2 with MIL-53. Despite CO2 solubility enhancement its diffusivity coefficient remained more or less unchanged. The enhancement in CH4 permeability has been mainly attributed to its slight incremental diffusivity due to the membrane's increasingly higher free volume. Finally, a comparison between membranes performance and CO2/CH4 Robeson upper bound showed that, the performance of membranes improved due to the presence of MIL-53 which was very close to the Robeson bound.

Glucose recovery from aqueous solutions by adsorption in metal-organic framework MIL-101: a molecular simulation study.

Science.gov (United States)

Gupta, Krishna M; Zhang, Kang; Jiang, Jianwen

2015-08-05

A molecular simulation study is reported on glucose recovery from aqueous solutions by adsorption in metal-organic framework MIL-101. The F atom of MIL-101 is identified to be the most favorable adsorption site. Among three MIL-101-X (X = H, NH2 or CH3), the parent MIL-101 exhibits the highest adsorption capacity and recovery efficacy. Upon functionalization by -NH2 or -CH3 group, the steric hindrance in MIL-101 increases; consequently, the interactions between glucose and framework become less attractive, thus reducing the capacity and mobility of glucose. The presence of ionic liquid, 1-ethyl-3-methyl-imidazolium acetate, as an impurity reduces the strength of hydrogen-bonding between glucose and MIL-101, and leads to lower capacity and mobility. Upon adding anti-solvent (ethanol or acetone), a similar adverse effect is observed. The simulation study provides useful structural and dynamic properties of glucose in MIL-101, and it suggests that MIL-101 might be a potential candidate for glucose recovery.

Small Explorer Data System MIL-STD-1773 fiber optic bus

Science.gov (United States)

Flanegan, Mark; Label, Ken

1992-01-01

The MIL-STD-1773 Fiber Optic Data Bus as implemented in the GSFC Small Explorer Data System (SEDS) for the Small Explorer Program is described. It provides an overview of the SEDS MIL-STD-1773 bus components system design considerations, reliability figures, acceptance and qualification testing requirements, radiation requirements and tests, error handling considerations, and component heritage. The first mission using the bus will be launched in June of 1992.

1 mil gold bond wire study.

Energy Technology Data Exchange (ETDEWEB)

Huff, Johnathon; McLean, Michael B.; Jenkins, Mark W.; Rutherford, Brian Milne

2013-05-01

In microcircuit fabrication, the diameter and length of a bond wire have been shown to both affect the current versus fusing time ratio of a bond wire as well as the gap length of the fused wire. This study investigated the impact of current level on the time-to-open and gap length of 1 mil by 60 mil gold bond wires. During the experiments, constant current was provided for a control set of bond wires for 250ms, 410ms and until the wire fused; non-destructively pull-tested wires for 250ms; and notched wires. The key findings were that as the current increases, the gap length increases and 73% of the bond wires will fuse at 1.8A, and 100% of the wires fuse at 1.9A within 60ms. Due to the limited scope of experiments and limited data analyzed, further investigation is encouraged to confirm these observations.

Preparation of magnetic MIL-101 (Cr) for efficient removal of ciprofloxacin.

Science.gov (United States)

Bayazit, Şahika Sena; Danalıoğlu, Selen Tuğba; Abdel Salam, Mohamed; Kerkez Kuyumcu, Özge

2017-11-01

Metal organic frameworks are widely used as adsorbent materials in recent years. In this study, the most prepared metal organic framework MIL-101 was prepared by hydrothermal method and featured magnetic property using co-precipitation method Fe 3 O 4 . Then, the prepared composite (MIL-101/Fe 3 O 4 ) was first characterized using XRD, FTIR, SEM-EDS, and surface area analysis, then was used for the adsorptive removal of the most used antibiotic, ciprofloxacin (CIP). The effect of different adsorption variables which may affect the removal of CIP by MIL-101/Fe 3 O 4 was investigated, as well as their adsorbent quantity, initial CIP concentration, pH, temperature, and contact time. The non-linear Langmuir and Freundlich isotherm were applied to experimental data. It was observed that rising solution temperature decreases adsorption efficiency, as the maximum adsorption uptake value was 63.28 mg g -1 at 298 K and 22.93 mg g -1 at 313 K, indicating the exothermic nature of the adsorption. The adsorption was studied kinetically and found to follow the pseudo-second-order kinetic model. The desorption of CIP from the MIL-101/Fe 3 O 4 was investigated using three different eluents, and the results showed that phosphate-buffered solution was the most effective desorption eluent. Graphical abstract Schematic diagram of the preparation steps of MIL-101/Fe3O4.

Glucose recovery from aqueous solutions by adsorption in metal–organic framework MIL-101: a molecular simulation study

Science.gov (United States)

Gupta, Krishna M.; Zhang, Kang; Jiang, Jianwen

2015-01-01

A molecular simulation study is reported on glucose recovery from aqueous solutions by adsorption in metal-organic framework MIL-101. The F atom of MIL-101 is identified to be the most favorable adsorption site. Among three MIL-101-X (X = H, NH2 or CH3), the parent MIL-101 exhibits the highest adsorption capacity and recovery efficacy. Upon functionalization by -NH2 or -CH3 group, the steric hindrance in MIL-101 increases; consequently, the interactions between glucose and framework become less attractive, thus reducing the capacity and mobility of glucose. The presence of ionic liquid, 1-ethyl-3-methyl-imidazolium acetate, as an impurity reduces the strength of hydrogen-bonding between glucose and MIL-101, and leads to lower capacity and mobility. Upon adding anti-solvent (ethanol or acetone), a similar adverse effect is observed. The simulation study provides useful structural and dynamic properties of glucose in MIL-101, and it suggests that MIL-101 might be a potential candidate for glucose recovery. PMID:26242874

Comparative Study of MIL-96(Al) as Continuous Metal-Organic Frameworks Layer and Mixed-Matrix Membrane.

Science.gov (United States)

Knebel, Alexander; Friebe, Sebastian; Bigall, Nadja Carola; Benzaqui, Marvin; Serre, Christian; Caro, Jürgen

2016-03-23

MIL-96(Al) layers were prepared as supported metal-organic frameworks membrane via reactive seeding using the α-alumina support as the Al source for the formation of the MIL-96(Al) seeds. Depending on the solvent mixture employed during seed formation, two different crystal morphologies, with different orientation of the transport-active channels, have been formed. This crystal orientation and habit is predefined by the seed crystals and is kept in the subsequent growth of the seeds to continuous layers. In the gas separation of an equimolar H2/CO2 mixture, the hydrogen permeability of the two supported MIL-96(Al) layers was found to be highly dependent on the crystal morphology and the accompanied channel orientation in the layer. In addition to the neat supported MIL-96(Al) membrane layers, mixed-matrix membranes (MMMs, 10 wt % filler loading) as a composite of MIL-96(Al) particles as filler in a continuous Matrimid polymer phase have been prepared. Five particle sizes of MIL-96(Al) between 3.2 μm and 55 nm were synthesized. In the preparation of the MIL-96(Al)/Matrimid MMM (10 wt % filler loading), the following preparation problems have been identified: The bigger micrometer-sized MIL-96(Al) crystals show a trend toward sedimentation during casting of the MMM, whereas for nanoparticles aggregation and recrystallization to micrometer-sized MIL-96(Al) crystals has been observed. Because of these preparation problems for MMM, the neat supported MIL-96(Al) layers show a relatively high H2/CO2 selectivity (≈9) and a hydrogen permeance approximately 2 magnitudes higher than that of the best MMM.

Effect of synthesis solvent on the breathing behavior of MIL-53(Al).

Science.gov (United States)

Mounfield, William P; Walton, Krista S

2015-06-01

This work reports the effect of using dimethylformamide (DMF) as the solvent for synthesizing MIL-53(Al). This well-known breathing MOF is typically prepared using hydrothermal methods. The two materials synthesized in DMF at 120°C and 220°C show significant deviations from the breathing behavior exhibited by the material synthesized hydrothermally. Powder X-ray diffraction confirmed that MIL-53(Al) synthesized in DMF at 120°C remains in the large-pore form under all conditions, while the other material synthesized at 220°C undergoes a more gradual breathing transition than is observed for MIL-53(Al) prepared by traditional methods. Solid-state NMR was employed to elucidate additional structural information and gain insight into the role synthesis solvent plays on breathing behavior. The CO2 and water adsorption of these large-pore stabilized materials were studied, and the differences in adsorption behavior compared to MIL-53(Al) prepared by traditional methods was discussed. Copyright © 2015 Elsevier Inc. All rights reserved.

Nanometric MIL-125-NH₂ Metal-Organic Framework as a Potential Nerve Agent Antidote Carrier.

Science.gov (United States)

Vilela, Sérgio M F; Salcedo-Abraira, Pablo; Colinet, Isabelle; Salles, Fabrice; de Koning, Martijn C; Joosen, Marloes J A; Serre, Christian; Horcajada, Patricia

2017-10-12

The three-dimensional (3D) microporous titanium aminoterephthalate MIL-125-NH₂ (MIL: Material of Institut Lavoisier) was successfully isolated as monodispersed nanoparticles, which are compatible with intravenous administration, by using a simple, safe and low-cost synthetic approach (100 °C/32 h under atmospheric pressure) so that for the first time it could be considered for encapsulation and the release of drugs. The nerve agent antidote 2-[(hydroxyimino)methyl]-1-methyl-pyridinium chloride (2-PAM or pralidoxime) was effectively encapsulated into the pores of MIL-125-NH₂ as a result of the interactions between 2-PAM and the pore walls being mediated by π-stacking and hydrogen bonds, as deduced from infrared spectroscopy and Monte Carlo simulation studies. Finally, colloidal solutions of MIL-125-NH₂ nanoparticles exhibited remarkable stability in different organic media, aqueous solutions at different pH and under relevant physiological conditions over time (24 h). 2-PAM was rapidly released from the pores of MIL-125-NH₂ in vitro.

Understanding and solving disorder in the substitution pattern of amino functionalized MIL-47(V).

Science.gov (United States)

Heinen, Jurn; Dubbeldam, David

2016-03-14

Electronic energies and elastic constants of four amino functionalized MIL-47(V) supercells were computed using plane wave density functional theory to determine the influence of the substituent positions on the organic linker. An inverse relationship between the ab initio energies and the elastic constants was found, indicating that the high electronic stability correlates with high mechanical stability. Torsion in all supercells was induced upon substitution, which caused strain in the NH2-MIL-47(V) supercell. The combined effect of the substituent bulkiness and the induced torsion reduced the pore volume of the NH2-MIL-47(V) structures by >7% and the surface area by >14% with respect to MIL-47(V). This reduction was confirmed by lower saturation capacities of methane, CO2 and benzene. When unfavourable substituent positions are chosen, large torsions caused a further reduction of the saturation capacity. Differences in surface area, pore volume and saturation capacity illustrate the importance of choosing the correct NH2-MIL-47(V) supercell.

Novel composite material polyoxovanadate@MIL-101(Cr): a highly efficient electrocatalyst for ascorbic acid oxidation.

Science.gov (United States)

Fernandes, Diana M; Barbosa, André D S; Pires, João; Balula, Salete S; Cunha-Silva, Luís; Freire, Cristina

2013-12-26

A novel hybrid composite material, PMo10V2@MIL-101 was prepared by the encapsulation of the tetra-butylammonium (TBA) salt of the vanadium-substituted phosphomolybdate [PMo10V2O40](5-) (PMo10V2) into the porous metal-organic framework (MOF) MIL-101(Cr). The materials characterization by powder X-ray diffraction, Fourier transform infrared spectra and scanning electron microscopy confirmed the preparation of the composite material without disruption of the MOF porous structure. Pyrolytic graphite electrodes modified with the original components (MIL-101(Cr), PMo10V2), and the composite material PMo10V2@MIL-101 were prepared and their electrochemical responses were studied by cyclic voltammetry. Surface confined redox processes were observed for all the immobilized materials. MIL-101(Cr) showed one-electron reduction process due to chromium centers (Cr(III) → Cr(II)), while PMo10V2 presented five reduction processes: the peak at more positive potentials is attributed to two superimposed 1-electron vanadium reduction processes (V(V) → V(IV)) and the other four peaks to Mo-centred two-electron reduction processes (Mo(VI) → Mo(V)). The electrochemical behavior of the composite material PMo10V2@MIL-101 showed both MIL-101(Cr) and PMo10V2 redox features, although with the splitting of the two vanadium processes and the shift of the Mo- and Cr- centered processes to more negative potentials. Finally, PMo10V2@MIL-101 modified electrode showed outstanding enhanced vanadium-based electrocatalytic properties towards ascorbic acid oxidation, in comparison with the free PMo10V2, as a result of its immobilization into the porous structure of the MOF. Furthermore, PMo10V2@MIL-101 modified electrode showed successful simultaneous detection of ascorbic acid and dopamine.

Host-guest interaction of styrene and ethylbenzene in MIL-53 studied by solid-state NMR.

Science.gov (United States)

Li, Shenhui; Li, Jing; Tang, Jing; Deng, Feng

Solid-state NMR was utilized to explore the host-guest interaction between adsorbate and adsorbent at atomic level to understand the separation mechanism of styrene (St) and ethylbenzene (EB) in MIL-53(Al). 13 C- 27 Al double-resonance NMR experiments revealed that the host-guest interaction between St and MIL-53 was much stronger than that of EB adsorption. In addition, 13 C DIPSHIFT experiments suggested that the adsorbed St was less mobile than EB confined inside the MIL-53 pore. Furthermore, the host-guest interaction model between St, EB and MIL-53 was established on the basis of the spatial proximities information extracted from 2D 1 H- 1 H homo-nuclear correlation NMR experiments. According to the experimental observation from solid-state NMR, it was found that the presence of π-π interaction between St and MIL-53 resulted in the stronger host-guest interaction and less mobility of St. This work provides direct experimental evidence for understanding the separation mechanism of St and EB using MIL-53 as an adsorbent. Copyright © 2017 Elsevier Inc. All rights reserved.

Augmentation du rendement des producteurs de petits mils par leur ...

International Development Research Centre (IDRC) Digital Library (Canada)

29 avr. 2016 ... Image. Cultivateurs du petit mils en Inde. Une plus grande diversité de variétés de petit mil contribue à réduire la vulnérabilité à l'égard des mauvaises conditions météorologiques. En dépit du fait qu'ils ont une teneur élevée en micronutriments et en fibres alimentaires, présentent un indice glycémique ...

Novel thymine-functionalized MIL-101 prepared by post-synthesis and enhanced removal of Hg{sup 2+} from water

Energy Technology Data Exchange (ETDEWEB)

Luo, Xubiao, E-mail: luoxubiao@126.com [Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063 (China); College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063 (China); Shen, Tingting; Ding, Lin; Zhong, Weiping; Luo, Jianfeng [Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063 (China); College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063 (China); Luo, Shenglian, E-mail: sllou@hnu.edu.cn [Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063 (China); College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063 (China)

2016-04-05

Highlights: • A novel thymine-functionalized MIL-101 (MIL-101-Thymine) was first synthesized by post-synthesis method. • The resulting MIL-101-Thymine exhibited high Hg{sup 2+} adsorption. • MIL-101-Thymine exhibited excellent selectivity towards Hg{sup 2+} over other metal ions. • MIL-101-Thymine was used to remove trace Hg{sup 2+} with satisfactory recoveries in real water samples. - Abstract: A novel thymine-functionalized MIL-101 (MIL-101-Thymine) material was synthesized using a post-synthesis method to remove mercury at a high efficiency. MIL-101-Thymine was successfully prepared in this work and was confirmed by several characterization methods, such as {sup 13}C nuclear magnetic resonance, X-ray diffraction, and infrared spectroscopy. The Hg{sup 2+} adsorption agreed well with the Langmuir model, and the maximum adsorption capacity was 51.27 mg/g. The adsorption rate fit with the pseudo-second-order kinetic model. Furthermore, MIL-101-Thymine exhibited excellent selectivity towards Hg{sup 2+} over other cations, and the maximum value of the selective coefficient reached 947.34; this result is very likely due to the highly selective interactions of T-Hg{sup 2+}–T in MIL-101-Thymine. The result of X-ray photoelectron spectroscopy also showed that Hg{sup 2+} was coordinated with the N of thymine in MIL-101-Thymine. Moreover, the results of the thermogravimetric analysis and adsorption experiments showed that the Hg atom was two-coordinated with the thymine group. MIL-101-Thymine was used to remove trace Hg{sup 2+} in real water samples, and satisfactory recoveries were obtained.

Efficient Pd@MIL-101(Cr) hetero-catalysts for 2-butyne-1,4-diol hydrogenation exhibiting high selectivity

KAUST Repository

Yin, Dongdong

2017-01-05

Pd@MIL-101(Cr) hetero-catalysts have been successfully prepared using the metal-organic chemical vapour deposition (MOCVD) approach, by choosing [Pd(η-CH)(η-CH)] as a volatile precursor, and the hydrothermally stable metal-organic framework, MIL-101(Cr) as a support. The prepared Pd@MIL-101(Cr) hetero-catalysts characterized with various analytical techniques, exhibited highly monodispersed immobilized Pd nanoparticles in the MIL-101(Cr) cavities, while retaining the pristine crystallinity and porosity. The intact hybrid Pd@MIL-101(Cr) has been demonstrated to be an efficient catalyst for 2-butyne-1,4-diol hydrogenation with excellent activity, stability and selectivity (2-butene-1,4-diol (>94%)).

Protonated MIL-125-NH2: Remarkable Adsorbent for the Removal of Quinoline and Indole from Liquid Fuel.

Science.gov (United States)

Ahmed, Imteaz; Khan, Nazmul Abedin; Yoon, Ji Woong; Chang, Jong-San; Jhung, Sung Hwa

2017-06-21

The removal of nitrogen-containing compounds (NCCs) from fossil fuels prior to combustion is currently of particular importance, and so we investigated an adsorptive method using metal-organic frameworks (MOFs) for the removal of indole (IND) and quinoline (QUI), which are two of the main NCCs present in fossil fuels. We herein employed an amino (-NH 2 )-functionalized MIL-125 (MIL-125-NH 2 ) MOF, which was further modified by protonation (P-MIL-125-NH 2 ). These modified MOFs exhibited extraordinary performance in the adsorption of both IND (as representative neutral NCC) and QUI (as representative basic NCC). These MOFs were one of the most efficient adsorbents for the removal of NCCs. For example, P-MIL-125-NH 2 showed the highest adsorption capacity for QUI among ever reported adsorbent. The improved adsorption of IND was explained by H-bonding and cation-π interactions for MIL-125-NH 2 and P-MIL-125-NH 2 , respectively, while the mechanisms for QUI were H-bonding and acid-base interactions, respectively. This is a rare phenomenon for a single material (especially not with very high porosity) to exhibit such remarkable performances in the adsorption of both basic QUI and neutral IND. The adsorption results obtained using regenerated MIL-125-NH 2 and P-MIL-125-NH 2 also showed that these materials can be used several times without any severe degradation.

The metal-organic framework MIL-53(Al) constructed from multiple metal sources: alumina, aluminum hydroxide, and boehmite.

Science.gov (United States)

Li, Zehua; Wu, Yi-nan; Li, Jie; Zhang, Yiming; Zou, Xin; Li, Fengting

2015-04-27

Three aluminum compounds, namely alumina, aluminum hydroxide, and boehmite, are probed as the metal sources for the hydrothermal synthesis of a typical metal-organic framework MIL-53(Al). The process exhibits enhanced synthetic efficiency without the generation of strongly acidic byproducts. The time-course monitoring of conversion from different aluminum sources into MIL-53(Al) is achieved by multiple characterization that reveals a similar but differentiated crystallinity, porosity, and morphology relative to typical MIL-53(Al) prepared from water-soluble aluminum salts. Moreover, the prepared MIL-53(Al) constructed with the three insoluble aluminum sources exhibit an improved thermal stability of up to nearly 600 °C and enhanced yields. Alumina and boehmite are more preferable than aluminum hydroxide in terms of product porosity, yield, and reaction time. The adsorption performances of a typical environmental endocrine disruptor, dimethyl phthalate, on the prepared MIL-53(Al) samples are also investigated. The improved structural stability of MIL-53(Al) prepared from these alternative aluminum sources enables double-enhanced adsorption performance (up to 206 mg g(-1)) relative to the conventionally obtained MIL-53(Al). © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Nanometric MIL-125-NH2 Metal–Organic Framework as a Potential Nerve Agent Antidote Carrier

Directory of Open Access Journals (Sweden)

Sérgio M. F. Vilela

2017-10-01

Full Text Available The three-dimensional (3D microporous titanium aminoterephthalate MIL-125-NH2 (MIL: Material of Institut Lavoisier was successfully isolated as monodispersed nanoparticles, which are compatible with intravenous administration, by using a simple, safe and low-cost synthetic approach (100 °C/32 h under atmospheric pressure so that for the first time it could be considered for encapsulation and the release of drugs. The nerve agent antidote 2-[(hydroxyiminomethyl]-1-methyl-pyridinium chloride (2-PAM or pralidoxime was effectively encapsulated into the pores of MIL-125-NH2 as a result of the interactions between 2-PAM and the pore walls being mediated by π-stacking and hydrogen bonds, as deduced from infrared spectroscopy and Monte Carlo simulation studies. Finally, colloidal solutions of MIL-125-NH2 nanoparticles exhibited remarkable stability in different organic media, aqueous solutions at different pH and under relevant physiological conditions over time (24 h. 2-PAM was rapidly released from the pores of MIL-125-NH2 in vitro.

Novel thymine-functionalized MIL-101 prepared by post-synthesis and enhanced removal of Hg(2+) from water.

Science.gov (United States)

Luo, Xubiao; Shen, Tingting; Ding, Lin; Zhong, Weiping; Luo, Jianfeng; Luo, Shenglian

2016-04-05

A novel thymine-functionalized MIL-101 (MIL-101-Thymine) material was synthesized using a post-synthesis method to remove mercury at a high efficiency. MIL-101-Thymine was successfully prepared in this work and was confirmed by several characterization methods, such as (13)C nuclear magnetic resonance, X-ray diffraction, and infrared spectroscopy. The Hg(2+) adsorption agreed well with the Langmuir model, and the maximum adsorption capacity was 51.27mg/g. The adsorption rate fit with the pseudo-second-order kinetic model. Furthermore, MIL-101-Thymine exhibited excellent selectivity towards Hg(2+) over other cations, and the maximum value of the selective coefficient reached 947.34; this result is very likely due to the highly selective interactions of T-Hg(2+)-T in MIL-101-Thymine. The result of X-ray photoelectron spectroscopy also showed that Hg(2+) was coordinated with the N of thymine in MIL-101-Thymine. Moreover, the results of the thermogravimetric analysis and adsorption experiments showed that the Hg atom was two-coordinated with the thymine group. MIL-101-Thymine was used to remove trace Hg(2+) in real water samples, and satisfactory recoveries were obtained. Copyright © 2015 Elsevier B.V. All rights reserved.

Hydrogen selective NH{sub 2}-MIL-53(Al) MOF membranes with high permeability

Energy Technology Data Exchange (ETDEWEB)

Zhang, Feng; Zou, Xiaoqin; Gao, Xue; Fan, Songjie; Sun, Fuxing; Ren, Hao; Zhu, Guangshan [State Key Laboratory of Inorganic, Synthesis and Preparative Chemistry, Jilin University, Changchun (China)

2012-09-11

Hydrogen-based energy is a promising renewable and clean resource. Thus, hydrogen selective microporous membranes with high performance and high stability are demanded. Novel NH{sub 2}-MIL-53(Al) membranes are evaluated for hydrogen separation for this goal. Continuous NH{sub 2}-MIL-53(Al) membranes have been prepared successfully on macroporous glass frit discs assisted with colloidal seeds. The gas sorption ability of NH{sub 2}-MIL-53(Al) materials is studied by gas adsorption measurement. The isosteric heats of adsorption in a sequence of CO{sub 2}> N{sub 2}> CH{sub 4}{approx} H{sub 2} indicates different interactions between NH{sub 2}-MIL-53(Al) framework and these gases. As-prepared membranes are measured by single and binary gas permeation at different temperatures. The results of singe gas permeation show a decreasing permeance in an order of H{sub 2}> CH{sub 4}> N{sub 2}> CO{sub 2}, suggesting that the diffusion and adsorption properties make significant contributions in the gas permeation through the membrane. In binary gas permeation, the NH{sub 2}-MIL-53(Al) membrane shows high selectivity for H{sub 2} with separation factors of 20.7, 23.9 and 30.9 at room temperature (288 K) for H{sub 2} over CH{sub 4}, N{sub 2} and CO{sub 2}, respectively. In comparison to single gas permeation, a slightly higher separation factor is obtained due to the competitive adsorption effect between the gases in the porous MOF membrane. Additionally, the NH{sub 2}-MIL-53(Al) membrane exhibits very high permeance for H{sub 2} in the mixtures separation (above 1.5 x 10{sup -6} mol m{sup -2} s{sup -1} Pa{sup -1}) due to its large cavity, resulting in a very high separation power. The details of the temperature effect on the permeances of H{sub 2} over other gases are investigated from 288 to 353 K. The supported NH{sub 2}-MIL-53(Al) membranes with high hydrogen separation power possess high stability, resistance to cracking, temperature cycling and show high reproducibility

Glycine post-synthetic modification of MIL-53(Fe) metal-organic framework with enhanced and stable peroxidase-like activity for sensitive glucose biosensing.

Science.gov (United States)

Dong, Wenfei; Yang, Liaoyuan; Huang, Yuming

2017-05-15

A facile and rapid post-synthetic strategy was proposed to prepare a glycine functionalized MIL-53(Fe), namely glycine-MIL-53(Fe), by a simple mixing of water dispersible MIL-53(Fe) and glycine. The FT-IR, SEM, XRD and zeta potential were used to characterize the glycine-MIL-53(Fe). The result showed that glycine post-synthetic modification of MIL-53(Fe) did not change in the morphology and crystal structure of MIL-53(Fe). Interestingly, compared with MIL-53(Fe), the glycine-MIL-53(Fe) exhibits an enhanced peroxidase-like activity, which could catalyze the oxidation of TMB by H 2 O 2 to produce an intensive color reaction. Kinetic analysis indicated that the K m of glycine-MIL-53(Fe) for TMB was one-tenth of that of MIL-53(Fe). The glycine-MIL-53(Fe) as peroxidase mimetic displays better stability under alkaline or acidic conditions than MIL-53(Fe). The good performance of glycine-MIL-53(Fe) over MIL-53(Fe) may be attributed to the increase of affinity between TMB and the glycine-MIL-53(Fe). With these characteristics, a simple and sensitive method was developed for the detection of H 2 O 2 and glucose. The linear detection range for H 2 O 2 is 0.10-10μM with a detection limit of 49nM, and glucose could be linearly detected in the range from 0.25 to 10μM with a detection limit of 0.13μM. The proposed method was successfully used for glucose detection in human serum samples. Copyright © 2017 Elsevier B.V. All rights reserved.

MilQuant: a free, generic software tool for isobaric tagging-based quantitation.

Science.gov (United States)

Zou, Xiao; Zhao, Minzhi; Shen, Hongyan; Zhao, Xuyang; Tong, Yuanpeng; Wang, Qingsong; Wei, Shicheng; Ji, Jianguo

2012-09-18

Isobaric tagging techniques such as iTRAQ and TMT are widely used in quantitative proteomics and especially useful for samples that demand in vitro labeling. Due to diversity in choices of MS acquisition approaches, identification algorithms, and relative abundance deduction strategies, researchers are faced with a plethora of possibilities when it comes to data analysis. However, the lack of generic and flexible software tool often makes it cumbersome for researchers to perform the analysis entirely as desired. In this paper, we present MilQuant, mzXML-based isobaric labeling quantitator, a pipeline of freely available programs that supports native acquisition files produced by all mass spectrometer types and collection approaches currently used in isobaric tagging based MS data collection. Moreover, aside from effective normalization and abundance ratio deduction algorithms, MilQuant exports various intermediate results along each step of the pipeline, making it easy for researchers to customize the analysis. The functionality of MilQuant was demonstrated by four distinct datasets from different laboratories. The compatibility and extendibility of MilQuant makes it a generic and flexible tool that can serve as a full solution to data analysis of isobaric tagging-based quantitation. Copyright © 2012 Elsevier B.V. All rights reserved.

Por mil devaluados pesos

Directory of Open Access Journals (Sweden)

Annie Rodríguez Collázos

2013-03-01

Full Text Available El estudio de lo popular y lo urbano hasta ahora se ha centrado en el comportamiento y en algunas relaciones de los habitantes con su entorno. “Por mil devaluados pesos. Publicidad popular y urbana”, pretende explorar las formas de publicidad, dispersas en diferentes espacios populares y urbanos en Bogotá, identificando esquemas y formas características de sus propios códigos comunicativos; se centran en un objeto de estudio consistente en las estrategias publicitarias y los códigos comunicativos en los mensajes publicitarios populares en las subculturas de San Victorino, 7 de Agosto y Sanandresito de San José.

Catalytic Performance of Microwave Functionalized NH2-MIL-53 for Cyclic Carbonate Synthesis from CO2 and Epoxides.

Science.gov (United States)

Seok, Han-Geul; Kim, Dong-Woo; Yang, Jeung-Gyu; Kim, Moon-Il; Park, Dae-Won

2016-05-01

The efficacy of microwave irradiation in the quaternization of amino-functionalized MIL-53 metal-organic framework (MOF) as well as the catalytic activity of the resultant MOF in the cycloaddition of carbon dioxide with epoxides under solvent-free conditions has been studied. A series of NH2-MIL-53 were synthesized and quaternized by reacting alkyl halide of various alkyl chains and anions under microwave irradiation. The post-functionalized F-MIL-53-AXs were characterized through solid-state XRD, FT-IR, XPS, and TGA. F-MIL-53-Mel prepared by microwave method showed higher AGC yield than that by the conventional heating method. F-MIL-53-AXs with iodide anion exhibited the best catalytic activity irrespective of the alkyl chain length, in agreement with the generally accepting order of nucleophilicity, ClMIL-53-AX catalysts were found to exhibit high thermal stability and were reusable over than three times, without any significant lowering of activity.

Effect of Diamine in Amine-Functionalized MIL-101 for Knoevenagel Condensation

International Nuclear Information System (INIS)

Kasinathan, Palraj; Seo, You Kyong; Shim, Kyu Eun; Hwang, Young Kyu; Lee, U Hwang; Hwang, Dong Won; Hong, Do Young; Halligudi, Shiva B.; Chang, Jong San

2011-01-01

Have demonstrated that amines with different basicities successfully functionalized into the pores of MIL-101 and amine functionalized chromium terephthalate used as a base catalyst. The catalytic activity of amine functionalized MIL-101 in Knoevenagel condensation of ethylcyanoacetate and benzaldehyde depends on their basi-cities. The reactivity of these catalytic materials could be also affected by their pore size and/or surface area, which governs the facile diffusion of the molecules through the channels of the MIL-101. The present strategy ensures the development of new functionalities and lead to MOF applications of practically useful heterogeneous base catalysts for chemical transformations. Crystalline Metal-Organic Frameworks (MOFs) are currently an important kind of advanced functional materials due to their novel coordination structures, diverse topologies, and potential applications. As one of topical MOFs, porous chromium terephthalate with giant pores labeled MIL-101(Cr) possesses several unique features such as hierarchical pore structure including a mesoporous zeotype architecture, mesoporous cages and microporous windows, outstanding sorption properties, numerous unsaturated metal cation sites, and high hydrothermal and chemical stability. These properties have led to a number of application potential in catalysis, gas storage, drug delivery and adsorptive separation. One important challenge has to realize is funtionalization via incorporation of binding site or reactive centers for catalysis. The functionalization methods of metal organic frameworks (MOFs) in a wide range of applications are two possible approaches including pre- and post-modification with functional groups

Modulated synthesis of chromium-based metal-organic framework (MIL-101) with enhanced hydrogen uptake

CSIR Research Space (South Africa)

Ren, Jianwei

2014-08-01

Full Text Available Modulated synthesis of MIL-101(Cr) in high yield and with good reproducibility using formic acid as a modulator is reported. Higher molar ratio of formic acid/CrCl(sub3) was found to form better shape-defined MIL-101(Cr) crystals with higher surface...

Stable ABTS Immobilized in the MIL-100(Fe) Metal-Organic Framework as an Efficient Mediator for Laccase-Catalyzed Decolorization.

Science.gov (United States)

Liu, Youxun; Geng, Yuanyuan; Yan, Mingyang; Huang, Juan

2017-06-02

The successful encapsulation of 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS), a well-known laccase mediator, within a mesoporous metal-organic framework sample (i.e., MIL-100(Fe)) was achieved using a one-pot hydrothermal synthetic method. The as-prepared ABTS@MIL-100(Fe) was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, nitrogen sorption, and cyclic voltammetry (CV). Our ABTS@MIL-100(Fe)-based electrode exhibited an excellent electrochemical response, indicating that MIL-100(Fe) provides an appropriate microenvironment for the immobilization and electroactivity of ABTS molecules. ABTS@MIL-100(Fe) was then evaluated as an immobilized laccase mediator for dye removal using indigo carmine (IC) as a model dye. Through the application of laccase in combination with a free (ABTS) or immobilized (ABTS@MIL-100(Fe)) mediator, decolorization yields of 95% and 94%, respectively, were obtained for IC after 50 min. In addition, following seven reuse cycles of ABTS@MIL-100(Fe) for dye treatment, a decolorization yield of 74% was obtained. Dye decolorization occurred through the breakdown of the chromophoric group by the Laccase/ABTS@MIL-100(Fe) system, and a catalytic mechanism was proposed. We therefore expect that the stability, reusability, and validity of ABTS@MIL-100(Fe) as a laccase mediator potentially render it a promising tool for dye removal, in addition to reducing the high running costs and potential toxicity associated with synthetic mediators.

The Oxygen Isotopic Composition of MIL 090001: A CR2 Chondrite with Abundant Refractory Inclusions

Science.gov (United States)

Keller, Lindsay P.; McKeegan, K. D.; Sharp, Z. D.

2012-01-01

MIL 090001 is a large (>6 kg) carbonaceous chondrite that was classified as a member of the CV reduced subgroup (CVred) that was recovered during the 2009-2010 ANSMET field season [1]. Based on the abundance of refractory inclusions and the extent of aqueous alteration, Keller [2] suggested a CV2 classification. Here we report additional mineralogical and petrographic data for MIL 090001, its whole-rock oxygen isotopic composition and ion microprobe analyses of individual phases. The whole rock oxygen isotopic analyses show that MIL 090001 should be classified as a CR chondrite.

Enhancing the water stability of Al-MIL-101-NH2 via postsynthetic modification.

Science.gov (United States)

Wittmann, Thomas; Siegel, Renée; Reimer, Nele; Milius, Wolfgang; Stock, Norbert; Senker, Jürgen

2015-01-02

The resistance of metal-organic frameworks towards water is a very critical issue concerning their practical use. Recently, it was shown for microporous MOFs that the water stability could be increased by introducing hydrophobic pendant groups. Here, we demonstrate a remarkable stabilisation of the mesoporous MOF Al-MIL-101-NH2 by postsynthetic modification with phenyl isocyanate. In this process 86 % of the amino groups were converted into phenylurea units. As a consequence, the long-term stability of Al-MIL-101-URPh in liquid water could be extended beyond a week. In water saturated atmospheres Al-MIL-101-URPh decomposed at least 12-times slower than the unfunctionalised analogue. To study the underlying processes both materials were characterised by Ar, N2 and H2 O sorption measurements, powder X-ray diffraction, thermogravimetric and chemical analysis as well as solid-state NMR and IR spectroscopy. Postsynthetic modification decreased the BET equivalent surface area from 3363 to 1555 m(2)  g(-1) for Al-MIL-101-URPh and reduced the mean diameters of the mesopores by 0.6 nm without degrading the structure significantly and reducing thermal stability. In spite of similar water uptake capacities, the relative humidity-dependent uptake of Al-MIL-101-URPh is slowed and occurs at higher relative humidity values. In combination with (1) H-(27) Al D-HMQC NMR spectroscopy experiments this favours a shielding mechanism of the Al clusters by the pendant phenyl groups and rules out pore blocking. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

NATO Pallet with Javelin Missiles, MIL-STD-1660 Tests

National Research Council Canada - National Science Library

2004-01-01

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted tests in accordance with MIL-STD-1660, "Design Criteria for Ammunition Unit Loads" on the NATO pallet with Javelin missiles...

Atomic Layer Deposition of Pt Nanoparticles within the Cages of MIL-101: A Mild and Recyclable Hydrogenation Catalyst

Directory of Open Access Journals (Sweden)

Karen Leus

2016-03-01

Full Text Available We present the in situ synthesis of Pt nanoparticles within MIL-101-Cr (MIL = Materials Institute Lavoisier by means of atomic layer deposition (ALD. The obtained Pt@MIL-101 materials were characterized by means of N2 adsorption and X-ray powder diffraction (XRPD measurements, showing that the structure of the metal organic framework was well preserved during the ALD deposition. X-ray fluorescence (XRF and transmission electron microscopy (TEM analysis confirmed the deposition of highly dispersed Pt nanoparticles with sizes determined by the MIL-101-Cr pore sizes and with an increased Pt loading for an increasing number of ALD cycles. The Pt@MIL-101 material was examined as catalyst in the hydrogenation of different linear and cyclic olefins at room temperature, showing full conversion for each substrate. Moreover, even under solvent free conditions, full conversion of the substrate was observed. A high concentration test has been performed showing that the Pt@MIL-101 is stable for a long reaction time without loss of activity, crystallinity and with very low Pt leaching.

Nanometric MIL-125-NH2 metal–organic framework as a potential nerve agent antidote carrier

NARCIS (Netherlands)

Vilela, S.M.F.; Salcedo-Abraira, P; Colinet, I.; Salles, F.; Koning, M.C. de; Joosen, M.J.A.; Serre, C.; Horcajada, P.

2017-01-01

The three-dimensional (3D) microporous titanium aminoterephthalate MIL-125-NH_2 (MIL: Material of Institut Lavoisier) was successfully isolated as monodispersed nanoparticles, which are compatible with intravenous administration, by using a simple, safe and low-cost synthetic approach (100 °C/32 h

Electro-Synthetic Optimization of Host Material Based on MIL-100(Fe

Directory of Open Access Journals (Sweden)

Witri Wahyu Lestari

2016-05-01

Full Text Available Electro-synthesis of Metal-Organic Frameworks types of MIL-100(Fe (MIL = Material Institute of Lavoisier in ethanol: water (1: 1 with electrolyte TBATFB 0.1 M has been optimized by varying voltage (12, 13, 14 and 15 Volt and temperature (room temperature, 40, 60 and 80 °C. The product showed light brown powder which upon activation becomes dark brown. Optimum condition achieved during use voltage of 15 Volts and at a temperature of 40 °C with 33% yield. The obtained material was characterized by XRD and compared to CCDC 640536 simulated patterns to confirm the phase purity of the product. As comparison hydrothermal and reflux method have been carried out. Characterization by FTIR has also undertaken to ensure the coordination between the metal cation (Fe3+ and the BTC ligand (BTC = 1,3,5-Benzene Tri Carboxylate. Meanwhile pore analysis using SAA confirmed that MIL-100(Fe obtained by electrolysis method has a BET surface area reached till 569.191 m²/g with a total pore volume of 0.4540 cc/g and an average pore diameter reached 16 Å. Based on SEM analysis, morphology material show particle size between 0.4-8.6 μm and has a thermal stability up to 350 °C according thermo-gravimetric analysis. Due to the presence of Lewis acid sites on Fe-trimeric unit, porosity features on MIL-100(Fe and a fairly high thermal stability, this material is potentially used as the host material for the catalyst in the conversion reactions model for green diesel production.

Mil rosas roubadas, Work of Silviano Santiago a Bakhitinian Analysis

Directory of Open Access Journals (Sweden)

Renata Coelho Marchezan

2017-10-01

Full Text Available This article analyzes Mil rosas roubadas, written by Silviano Santiago in 2014, dealing with the notions of (autobiography, (autobiographical novel, metafiction and autofiction. Although the creation of this last word may indicate the existence of a new genre – it is even adopted by the writer himself to name his work –, the article shows the pertinence of placing Mil rosas roubadas in the route of the transformations and stylisations of the (autobiographical novel, such as examined by M. Bakhtin. The novel is, for Bakhtin, a genre without rigid forms, an unfinished genre, as it always follows the inflections of social life. In this way the ressemantization of the self, proposed by Silviano Santiago, is analyzed.

MIL-Ti metal-organic frameworks (MOFs) nanomaterials as superior adsorbents: Synthesis and ultrasound-aided dye adsorption from multicomponent wastewater systems.

Science.gov (United States)

Oveisi, Mina; Asli, Mokhtar Alina; Mahmoodi, Niyaz Mohammad

2018-04-05

Herein, 1,4-benzenedicarboxylate (BDC) and 2-amino-1,4-benzenedicarboxylate (NH 2 -BDC) as organic linkers and tetraisopropyl orthotitanate as a metal source were used to synthesize several metal-organic frameworks (MOFs) nanomaterials. Five Materials Institut Lavoisiers (MILs) as MOFs include MIL-125(Ti), NH 2 -MIL-125(Ti) and three MILs with different organic linkers molar ratios (BDC/NH 2 -BDC: 75/25, 50/50 and 25/75 denoted as MIL-X1, MIL-X2 and MIL-X3, respectively). The synthesized nanomaterials were used for ultrasound-aided adsorption of cationic dyes (Basic Red 46 (BR46), Basic Blue 41 (BB41) and Methylene Blue (MB)) from single and multicomponent (binary) systems. The BET, XRD, FTIR, SEM, TEM, TGA and zeta potential were used for characterizing the MILs. Dye removal followed pseudo-second order kinetics with constant rate of 0.20833, 0.00481 and 0.00051 mg/g min for BR46, BB41 and MB, respectively. In addition dye adsorption obeyed the Langmuir isotherm model and the experimental dye adsorption capacity for BR46, BB41 and MB was 1296, 1257 and 862 mg/g, respectively. The synthesized MIL showed high reusability and stability over three cycles. The adsorption thermodynamics data presented that dye removal was a spontaneous, endothermic and physical reaction. The free Gibbs energy for dye removal by the NH 2 -MIL-125(Ti) at 308K was -19.424, -15.721 and -17.413 kJ/mol for BR46, BB41 and MB, respectively. Copyright © 2017 Elsevier B.V. All rights reserved.

Petits mils, énorme potentiel : diversifiés, nutritifs et adaptés aux ...

International Development Research Centre (IDRC) Digital Library (Canada)

29 avr. 2016 ... La culture des petits mils en complément des cultures existantes ... Redynamiser la production de petits mils pourrait améliorer la nutrition et la santé en Inde, ... que nécessite leur transformation et de la perception négative que l'on en ... Increasing gender equality among small millet farmers in South Asia.

Evaluating the Implementation of the Re-Engineering Systems of Primary Care Treatment in the Military (RESPECT-Mil)

Science.gov (United States)

Wong, Eunice C.; Jaycox, Lisa H.; Ayer, Lynsay; Batka, Caroline; Harris, Racine; Naftel, Scott; Paddock, Susan M.

2015-01-01

Abstract A RAND team conducted an independent implementation evaluation of the Re-Engineering Systems of Primary Care Treatment in the Military (RESPECT-Mil) Program, a system of care designed to screen, assess, and treat posttraumatic stress disorder and depression among active duty service members in the Army's primary care settings. Evaluating the Implementation of the Re-Engineering Systems of Primary Care Treatment in the Military (RESPECT-Mil) presents the results from RAND's assessment of the implementation of RESPECT-Mil in military treatment facilities and makes recommendations to improve the delivery of mental health care in these settings. Analyses were based on existing program data used to monitor fidelity to RESPECT-Mil across the Army's primary care clinics, as well as discussions with key stakeholders. During the time of the evaluation, efforts were under way to implement the Patient Centered Medical Home, and uncertainties remained about the implications for the RESPECT-Mil program. Consideration of this transition was made in designing the evaluation and applying its findings more broadly to the implementation of collaborative care within military primary care settings. PMID:28083389

Demonstration of coupling correction below the per-mil limit in the LHC

CERN Document Server

Maclean, Ewen Hamish; Fartoukh, Stephane; Persson, Tobias Hakan Bjorn; Skowronski, Piotr Krzysztof; Tomas Garcia, Rogelio; Wierichs, David Alexander; CERN. Geneva. ATS Department

2016-01-01

Linear coupling between betatron motion in the transverse planes is one of the key optics parameters for any accelerator. It can substantially affect the nonlinear dynamics, influencing both lifetime and the damping of instabilities, as well as affecting the ability to measure and control the linear optics. A review of published material revealed no account of coupling having been corrected significantly below the per-mil level in any hadron accelerator. This note reports the achievement of a sub-per-mil coupling correction during an LHC Machine Development study.

Chromium-based metal-organic framework MIL-101 as a highly effective catalyst in plasma for toluene removal

Science.gov (United States)

Wu, Junliang; Xia, Qibin; Xiao, Jing; Li, Zhong

2017-11-01

Catalytic performance of MIL-101—a type of chromium-based metal-organic frameworks (MOFs)—in a plasma catalysis system for toluene removal was experimentally studied. The MIL-101 was synthesized using a hydrothermal method, and its catalytic performance was compared to two other catalysts, Cr2O3/γ-Al2O3 and γ-Al2O3, in a dielectric barrier discharge (DBD) reactor. Results showed that the presence of a catalyst in plasma changed the voltage and current characteristic substantially, and promoted the performance of the plasma reactor. Among the catalysts, the MIL-101 exhibited a significantly high toluene conversion, which was 20% and 35% higher than Cr2O3/γ-Al2O3 and γ-Al2O3, respectively, under the same testing conditions, as well as higher carbon balance and CO2 selectivity. The analysis of by-products on the surfaces of the catalysts before and after reaction demonstrated that MIL-101 had better resistance towards by-products accumulation compared to Cr2O3/γ-Al2O3 and γ-Al2O3. The loading of MnO x on MIL-101 further promoted its catalytic performance. MIL-101 exhibits attractive catalytic properties as a catalyst in a plasma catalysis system for the decomposition of volatile organic compounds.

Chromium-based metal-organic framework MIL-101 as a highly effective catalyst in plasma for toluene removal

International Nuclear Information System (INIS)

Wu, Junliang; Xia, Qibin; Xiao, Jing; Li, Zhong

2017-01-01

Catalytic performance of MIL-101—a type of chromium-based metal-organic frameworks (MOFs)—in a plasma catalysis system for toluene removal was experimentally studied. The MIL-101 was synthesized using a hydrothermal method, and its catalytic performance was compared to two other catalysts, Cr 2 O 3 / γ -Al 2 O 3 and γ -Al 2 O 3 , in a dielectric barrier discharge (DBD) reactor. Results showed that the presence of a catalyst in plasma changed the voltage and current characteristic substantially, and promoted the performance of the plasma reactor. Among the catalysts, the MIL-101 exhibited a significantly high toluene conversion, which was 20% and 35% higher than Cr 2 O 3 / γ -Al 2 O 3 and γ -Al 2 O 3 , respectively, under the same testing conditions, as well as higher carbon balance and CO 2 selectivity. The analysis of by-products on the surfaces of the catalysts before and after reaction demonstrated that MIL-101 had better resistance towards by-products accumulation compared to Cr 2 O 3 / γ -Al 2 O 3 and γ -Al 2 O 3 . The loading of MnO x on MIL-101 further promoted its catalytic performance. MIL-101 exhibits attractive catalytic properties as a catalyst in a plasma catalysis system for the decomposition of volatile organic compounds. (paper)

Selective recognition of 6-mercaptopurine based on luminescent metal-organic frameworks Fe-MIL-88NH₂.

Science.gov (United States)

Sun, Zhengjuan; Liu, Yali; Li, Yuanfang

2015-03-15

A novel and rapid spectrofluorometry method for the recognition of 6-mercaptopurine (6-MP) has been developed based on luminescent metal-organic frameworks Fe-MIL-88NH2 as fluorescent probe. The strong fluorescence of Fe-MIL-88NH2 at 430 nm could be quenched by 6-MP directly, and the Fe-MIL-88NH2 shows high selectivity for 6-MP compared to other thiol-containing amino acids such as homocysteine (Hcy), cysteine (Cys), glutathione (GSH), etc. Under optimal conditions, the relative fluorescence intensity was linearly proportional to the concentration of 6-MP in the range of 5-600 μM with the detection limit at 1.17 μM (S/N=3). Furthermore, the present approach has been successfully applied to the determination of 6-MP in human serum samples. The possible fluorescence quenching mechanism has also been investigated, where it is revealed that the quenching was attributed to competition of absorption of the light source energy as well as electron transfer between Fe-MIL-88NH2 and 6-MP. Copyright © 2014 Elsevier B.V. All rights reserved.

Effective Adsorption and Removal of Phosphate from Aqueous Solutions and Eutrophic Water by Fe-based MOFs of MIL-101.

Science.gov (United States)

Xie, Qiying; Li, Yan; Lv, Zhaoling; Zhou, Hang; Yang, Xiangjun; Chen, Jing; Guo, Hong

2017-06-12

Although many efforts have been devoted to the adsorptive removal of phosphate from aqueous solutions and eutrophic water, it is still highly desirable to develop novel adsorbents with high adsorption capacities. In this study, Fe-based metal-organic frameworks (MOFs), MIL-101 and NH 2 -MIL-101, are fabricated through a general facile strategy. Their performance as an adsorbent for phosphate removal is investigated. Experiments are performed to study the effects of various factors on the phosphate adsorption, including adsorbent dosage, contact time and co-existing ions. Both MIL-101(Fe) and NH 2 -MIL-101(Fe) show highly effective removal of phosphates from aqueous solutions, and the concentration of phosphates decrease sharply from the initial 0.60 mg·L -1 to 0.045 and 0.032 mg·L -1 , respectively, within just 30 min of exposure. The adsorption kinetics and adsorption isotherms reveal that NH 2 -MIL-101(Fe) has higher adsorption capacity than MIL-101(Fe) possibly due to the amine group. Furthermore, the Fe-based MOFs also exhibit a high selectivity towards phosphate over other anions such as chloride, bromide, nitrate and sulfate. Particularly, the prepared Fe-based MIL-101 materials are also capable of adsorbing phosphate in an actual eutrophic water sample and display better removal effect.

Ru Nanoparticles Supported on MIL-101 by Double Solvents Method as High-Performance Catalysts for Catalytic Hydrolysis of Ammonia Borane

Directory of Open Access Journals (Sweden)

Tong Liu

2015-01-01

Full Text Available Highly dispersed crystalline Ru nanoparticles (NPs were successfully immobilized inside the pores of MIL-101 by a double solvents method (DSM. HRTEM clearly demonstrated the uniform distribution of the ultrafine Ru NPs throughout the interior cavities of MIL-101. The synthesized Ru@MIL-101 catalyst was also characterized by X-ray diffraction (XRD, N2 adsorption desorption, and ICP-AES. The catalytic test indicated that the Ru NPs supported MIL-101 material exhibited exceedingly high activity and excellent durability for hydrogen generation from the catalytic hydrolysis of amine boranes.

Structure and properties of Al-MIL-53-ADP, a breathing MOF based on the aliphatic linker molecule adipic acid.

Science.gov (United States)

Reinsch, Helge; Pillai, Renjith S; Siegel, Renée; Senker, Jürgen; Lieb, Alexandra; Maurin, Guillaume; Stock, Norbert

2016-03-14

The new aluminium based metal-organic framework [Al(OH)(O2C-C4H8-CO2)]·H2O denoted as Al-MIL-53-ADP-lp (lp stands for large pore) was synthesised under solvothermal conditions. This solid is an analogue of the archetypical aluminium terephthalate Al-MIL-53 based on the aliphatic single-chain linker molecule adipic acid (H2ADP, hexanedioic acid). In contrast to its aromatic counterparts, Al-MIL-53-ADP exhibits a structural breathing behaviour solely upon dehydration/rehydration. The crystal structure of the anhydrous compound denoted as Al-MIL-53-ADP-np (np stands for narrow pore) was determined by a combination of forcefield-based computations and Rietveld refinement of the powder X-ray diffraction data while the structure of the hydrated form Al-MIL-53-ADP-lp was derived computationally by a combination of force field based methods and Density Functional Theory calculations. Both structures were further supported by (1)H, (13)C and (27)Al high-resolution NMR MAS 1D data coupled again with simulations. Al-MIL-53-ADP was further characterised by means of vibrational spectroscopy, elemental analysis, thermogravimetry and water vapour sorption.

Barrio residencial de Gratosoglio, Milán

Directory of Open Access Journals (Sweden)

Giannini, Sandro

1967-04-01

Full Text Available The group of 23 buildings in the residential zone of Gratosoglio, which provide space for 1,000 dwellings, has been built by the firm «Fintech Italcamus». This Italian firms applies in Italy the «Raymond Camus» system, which is a positive aid to heavy prefabrication in housing projects. The above group of buildings constitute part of the General Building Scheme so successfully initiated by the Autonomous Building Institute of the Province of Milan, with the purpose of helping to overcome the extensive lack of housing in the Milan region.El grupo de edificios levantado en el Barrio Residencial de Gratosoglio, Milán (23, con un total de 1.000 viviendas, ha sido construido por la firma «Fintech Italcamus», Sociedad italiana que aplica en Italia el sistema «Raymond Camus» y constituye una aportación positiva de la prefabricación pesada a la edificación residencial. Este conjunto forma parte del Plan General de edificación, emprendido con tanto éxito como acierto por el Instituto Autónomo de la Vivienda de la Provincia de Milán, para solucionar los problemas que la gigantesca presión demográfica planteaba en dicha provincia.

Efficient Pd@MIL-101(Cr) hetero-catalysts for 2-butyne-1,4-diol hydrogenation exhibiting high selectivity

KAUST Repository

Yin, Dongdong; Li, Chuang; Ren, Hangxing; Shekhah, Osama; Liu, Jinxuan; Liang, Changhai

2017-01-01

Pd@MIL-101(Cr) hetero-catalysts have been successfully prepared using the metal-organic chemical vapour deposition (MOCVD) approach, by choosing [Pd(η-CH)(η-CH)] as a volatile precursor, and the hydrothermally stable metal-organic framework, MIL-101

MIL-L-87177 and CLT:X-10 Lubricants Improve Electrical Connector Fretting Corrosion Behavior

International Nuclear Information System (INIS)

AUKLAND, NEIL R.; HANLON, JAMES T.

1999-01-01

We have conducted a fretting research project using MIL-L-87177 and CLT: X-10 lubricants on Nano-miniature connectors. When they were fretted without lubricant, individual connectors first exceeded our 0.5 ohm failure criteria from 2,341 to 45,238 fretting cycles. With additional fretting, their contact resistance increased to more than 100,000 ohms. Unmodified MIL-L-87177 lubricant delayed the onset of first failure to between 430,000 and over 20,000,000 fretting cycles. MIL-L-87177 modified by addition of Teflon powder delayed first failure to beyond 5 million fretting cycles. Best results were obtained when Teflon was used and also when both the straight and modified lubricants were poured into and then out of the connector. CLT: X-10 lubricant delayed the onset of first failure to beyond 55 million cycles in one test where a failure was actually observed and to beyond 20 million cycles in another that was terminated without failure. CLT: X-10 recovered an unlubricated connector driven deeply into failure, with six failed pins recovering immediately and four more recovering during an additional 420 thousand fretting cycles. MIL-L-87177 was not able to recover a connector under similar conditions

CuNi NPs supported on MIL-101 as highly active catalysts for the hydrolysis of ammonia borane

Science.gov (United States)

Gao, Doudou; Zhang, Yuhong; Zhou, Liqun; Yang, Kunzhou

2018-01-01

The catalysts containing Cu, Ni bi-metallic nanoparticles were successfully synthesized by in-situ reduction of Cu2+ and Ni2+ salts into the highly porous and hydrothermally stable metal-organic framework MIL-101 via a simple liquid impregnation method. When the total amount of loading metal is 3 × 10-4 mol, Cu2Ni1@MIL-101 catalyst shows higher catalytic activity comparing to CuxNiy@MIL-101 with different molar ratio of Cu and Ni (x, y = 0, 0.5, 1.5, 2, 2.5, 3). Cu2Ni1@MIL-101 catalyst has the highest catalytic activity comparing to mono-metallic Cu and Ni counterparts and pure bi-metallic CuNi nanoparticles in hydrolytic dehydrogeneration of ammonia borane (AB) at room temperature. Additionally, in the hydrolysis reaction, the Cu2Ni1@MIL- 101 catalyst possesses excellent catalytic performances, which exhibit highly catalytic activity with turn over frequency (TOF) value of 20.9 mol H2 min-1 Cu mol-1 and a very low activation energy value of 32.2 kJ mol-1. The excellent catalytic activity has been successfully achieved thanks to the strong bi-metallic synergistic effects, uniform distribution of nanoparticles and the bi-functional effects between CuNi nanoparticles and the host of MIL-101. Moreover, the catalyst also displays satisfied durable stability after five cycles for the hydrolytically releasing H2 from AB. The non-noble metal catalysts have broad prospects for commercial applications in the field of hydrogen-stored materials due to the low prices and excellent catalytic activity.

The studies on gas adsorption properties of MIL-53 series MOFs materials

Directory of Open Access Journals (Sweden)

Yuqiu Jiao

2017-08-01

Full Text Available Molecular dynamics (MD, grand canonical Monte Carlo (GCMC and ideal adsorbed solution theory (IAST were used to study the structures and gas adsorption properties of MIL-53(M[M=Cr, Fe, Sc, Al] metal organic framework (MOF materials. The results show that the volumes of those MOF materials increase significantly at high temperature. By analyzing the adsorption isotherms, we found that the temperature had a paramount effect on the gas adsorption behaviors of these MOF materials. For MIL-53(Cr, the orders of the quantities of adsorbed gases were CH4>N2>CO2>H2S, CH4>H2S>CO2>N2 and CH4>CO2>H2S>N2 at 100K, 293K and 623K, respectively. We also calculated the adsorption of several combinations of two gases by MIL-53(Cr at 293K, the results indicate that the material had selective adsorption of CH4 over CO2, H2S and N2. Our calculations provide microscopic insights into the gas adsorption performances of these MOFs and may further guide the practice of gas separation.

The studies on gas adsorption properties of MIL-53 series MOFs materials

Science.gov (United States)

Jiao, Yuqiu; Li, Zhenyu; Ma, Yue; Zhou, Guanggang; Wang, Shuangxi; Lu, Guiwu

2017-08-01

Molecular dynamics (MD), grand canonical Monte Carlo (GCMC) and ideal adsorbed solution theory (IAST) were used to study the structures and gas adsorption properties of MIL-53(M)[M=Cr, Fe, Sc, Al] metal organic framework (MOF) materials. The results show that the volumes of those MOF materials increase significantly at high temperature. By analyzing the adsorption isotherms, we found that the temperature had a paramount effect on the gas adsorption behaviors of these MOF materials. For MIL-53(Cr), the orders of the quantities of adsorbed gases were CH4>N2>CO2>H2S, CH4>H2S>CO2>N2 and CH4>CO2>H2S>N2 at 100K, 293K and 623K, respectively. We also calculated the adsorption of several combinations of two gases by MIL-53(Cr) at 293K, the results indicate that the material had selective adsorption of CH4 over CO2, H2S and N2. Our calculations provide microscopic insights into the gas adsorption performances of these MOFs and may further guide the practice of gas separation.

Post-synthetic modification of MIL-101(Cr) with pyridine for high-performance liquid chromatographic separation of tocopherols.

Science.gov (United States)

Yang, Fang; Yang, Cheng-Xiong; Yan, Xiu-Ping

2015-05-01

Effective separation of tocopherols is challenging and significant due to their structural similarity and important biological role. Here we report the post-synthetic modification of metal-organic framework (MOF) MIL-101(Cr) with pyridine for high-performance liquid chromatographic (HPLC) separation of tocopherols. Baseline separation of four tocopherols was achieved on a pyridine-grafted MIL-101(Cr) packed column within 10 min using hexane/isopropanol (96:4, v/v) as the mobile phase at a flow rate of 0.5 mL min(-1). The pyridine-grafted MIL-101(Cr) packed column gave high column efficiency (85,000 plates m(-1) for δ-tocopherol) and good precision (0.2-0.3% for retention time, 1.8-3.4% for peak area, 2.6-2.7% for peak height), and also offered much better performance than unmodified MIL-101(Cr) and commercial amino-bonded silica packed column for HPLC separation of tocopherols. The results not only show the promising application of pyridine-grafted MIL-101(Cr) as a novel stationary phase for HPLC separation of tocopherols, but also reveal a facile post-modification of MOFs to expand the application of MOFs in separation sciences. Copyright © 2015 Elsevier B.V. All rights reserved.

MIL-HDBK-338: Environmental Conversion Table Correction

Science.gov (United States)

Hark, Frank; Novack, Steven

2017-01-01

In reliability analysis, especially for launch vehicles, limited data is frequently a problem. Component data from other environments must be used. MIL-HBK-338 has a matrix showing the conversation between environments. Due to round off the conversions are not commutative, converting from A to B will not equal converting from B to A. Agenda: Introduction to environment conversions; Original table; Original table with edits; How big is the problem?; First attempt at correction; Proposed solution.

Programming MIL-101Cr for selective and enhanced CO2 adsorption at low pressure by postsynthetic amine functionalization.

Science.gov (United States)

Khutia, Anupam; Janiak, Christoph

2014-01-21

MIL-101Cr fully or partially (p) postsynthetically modified with nitro (-NO2) or amino (-NH2) groups was shown to be a robust, water stable, selective and enhanced carbon dioxide (CO2) adsorption material with the amine-functionality. The highly microporous amine-modified frameworks (up to 1.6 cm(3) g(-1) total pore volume) exhibit excellent thermal stability (>300 °C) with BET surface areas up to 2680 m(2) g(-1). At 1 bar (at 273 K) the gases CO2, CH4 and N2 are adsorbed up to 22.2 wt%, 1.67 wt% and 2.27 wt%, respectively. The two amine-modified MIL-101Cr-NH2 (4) and MIL-101Cr-pNH2 (5) showed the highest gas uptake capacities in the series with high ratios for the CO2 : N2 and CO2 : CH4 selectivities (up to 119 : 1 and 75 : 1, respectively, at 273 K). Comparison with non-modified MIL-101Cr traces the favorable CO2 adsorption properties of MIL-101Cr-NH2 (4) and MIL-101Cr-pNH2 (5) to the presence of the Lewis-basic amine groups. MIL-101Cr-NH2 (4) has a high isosteric heat of adsorption of 43 kJ mol(-1) at zero surface coverage and also >23 kJ mol(-1) over the entire adsorption range, which is well above the heat of liquefaction of bulk CO2. Large CO2 uptake capacities of amine-functionalized 4 and 5, coupled with high adsorption enthalpy, high selectivities and proven long-term water stability, make them suitable candidates for capturing CO2 at low pressure from gas mixtures including the use as a CO2 sorbent from moist air.

Brønsted instead of Lewis acidity in functionalized MIL-101Cr MOFs for efficient heterogeneous (nano-MOF) catalysis in the condensation reaction of aldehydes with alcohols.

Science.gov (United States)

Herbst, Annika; Khutia, Anupam; Janiak, Christoph

2014-07-21

Porous chromium(III) 2-nitro-, 2-amino-, and nonfunctionalized terephthalate (MIL-101Cr) metal organic frameworks are heterogeneous catalysts for diacetal formation from benzaldehyde and methanol (B-M reaction) as well as other aldehydes and alcohols. MIL-101Cr-NO2 obtained by direct reaction between CrO3 and 2-nitro-terephthalate showed the highest activity with 99% conversion in the B-M reaction in 90 min and turnover numbers of 114. The activity decreased in the order MIL-101Cr-NO2 > MIL-101Cr > MIL-101Cr-NH2. Within different samples of nonfunctionalized MIL-101Cr the activity increased with surface area. Methanol gas sorption of the different MIL materials correlates with the BET surface area and pore volume but not with the diacetalization activity. Benzaldehyde adsorption from heptane showed no significant difference for the different MILs. Gas sorption studies of CD3CN to probe for a higher Lewis acidity in MIL-101Cr-NO2 remained inconclusive. A high B-M catalytic activity of wet MIL-101Cr-NO2 excluded significant contributions from coordinatively unsaturated Lewis-acid sites. pH measurements of methanol dispersions of the MIL materials gave the most acidic pH (as low as 1.9) for MIL-101Cr-NO2, which significantly increased over MIL-101Cr (3.0) to MIL-101Cr-NH2 (3.3). The increase in acidity is of short range or a surface effect to the heterogeneous MIL particles as protons dissociating from the polarized aqua ligands (Cr-OH2) have to stay near the insoluble counteranionic framework. The variation in Brønsted acidity of MIL-101Cr-NO2 > MIL-101Cr ≈ MIL-101Cr-NH2 correlates with the withdrawing effect of NO2 and the diacetalization activity. The catalytic B-M activity of soluble, substitution-inert, and acidic Cr(NO3)3·9H2O supports the Brønsted-acid effect of the MIL materials. Filtration and centrifugation experiments with MIL-101Cr-NO2 revealed that about 2/3 of the catalytic activity comes from nano-MOF particles with a diameter below 200 nm. The MIL

Post synthetic modification of MIL-101(Cr) for S-shaped isotherms and fast kinetics with water adsorption

International Nuclear Information System (INIS)

Teo, How Wei Benjamin; Chakraborty, Anutosh; Kayal, Sibnath

2017-01-01

Highlights: • Modification of parent MIL-101(Cr) metal organic framework (MOF) employing alkali metal ions (Li + , Na + , K + ). • Surface characteristics of the parent and alkali doped MIL-101(Cr) adsorbents. • Water uptakes are measured for the temperatures ranging from 25 °C to 60 °C under static and dynamic conditions. • Isotherms and kinetics data are fitted with Langmuir analogy models. • The 5% Li-doped MIL-101(Cr) is suitable for adsorption cooling. - Abstract: This article presents the surface characteristics of alkali (Li + , Na + , K + ) doped MIL-101(Cr) metal organic frameworks (MOFs), and the structural properties are evaluated by scanning electron micrography (SEM), X-ray diffraction (XRD), thermo-gravimetric analyser (TGA) and N 2 adsorption analysis. The amount of water uptakes are measured by a gravimetric analyser for the temperatures ranging from 298 K to 333 K and pressures up to the saturated conditions. The experimentally measured isotherms and kinetics data are fitted with the equations developed from the concept of Langmuir analogy. The isosteric heat of adsorption is calculated employing Van’t Hoff equation in the pressure-temperature-uptake co-ordinate systems. The hydrophobic length at low pressure regions is shortened by the addition of alkali dopants. It is observed that the alkali (Na, K and Li) ions on MIL-101(Cr) MOF increase the water uptakes at lower relative pressure region with fast kinetics. We have shown here that the alkali doped MIL-101(Cr) MOFs can be used as potential adsorbents for various low temperature heat transmission applications such as adsorption assisted heat pump, cooling and desalination.

Au3+/Au0 Supported on Chromium(III Terephthalate Metal Organic Framework (MIL-101 as an Efficient Heterogeneous Catalystfor Three-Component Coupling Synthesis of Propargylamines

Directory of Open Access Journals (Sweden)

Lili Liu

2017-01-01

Full Text Available Post-synthesis modification is a useful method for the functionalization of metal–organic frameworks (MOFs. A novel catalyst Au@MIL-101-ED-SA (ED = ethylenediamine, SA = salicylaldehyde, containing coexisting Au3+ ions and Au0 nanoparticles, was prepared successfully by post-synthesis modification with ethylenediamine, salicylaldehyde and gold. Gold nanoparticles supported on MIL-101 (Au@MIL-101 were prepared successfully by the impregnation method. Au@MIL-101-ED-SA and Au@MIL-101 were characterized by N2 adsorption–desorption, X-ray diffraction, infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, and inductively coupled plasma-optical emission spectrometry. Au@MIL-101-ED-SA and Au@MIL-101 were applied as environmentally friendly catalysts in the three-component coupling reaction of aldehydes, amines, and alkynes for the preparation of diverse propargylamines. Au@MIL-101-ED-SA contained a fraction of cationic gold (Au3+/Au0 = 0.9 and showed higher catalytic activity than Au@MIL-101, which was prepared by the impregnation method. Furthermore, the reactions were performed under heterogeneous conditions and the novel catalyst was successfully recycled for four consecutive runs.

MIL-100-Fe derived N-doped Fe/Fe3C@C electrocatalysts for efficient oxygen reduction reaction

Science.gov (United States)

Guo, Dakai; Han, Sancan; Wang, Jiacheng; Zhu, Yufang

2018-03-01

N-doped porous Fe/Fe3C@C electrocatalysts were prepared by the pyrolysis of the hexamethylenetetramine (HMT)-incorporated MIL-100-Fe at different temperatures (700-1000 °C) under N2 atmosphere. Rotary evaporation of MIL-100-Fe and HMT solution could make more N-enriched HMT molecules enter into the pores of MIL-100-Fe, thus improving nitrogen contents of the final pyrolyzed samples. All pyrolyzed samples show porous textures with middle specific surface areas. The X-ray photoelectron spectroscopy (XPS) results demonstrate the successful introduction of N atoms into carbon framework. Sample Fe-N2-800 prepared by annealing the precursors with the HMT/MIL-100-Fe weight ratio of 2 at 800 °C exhibits the best electrocatalytic activity towards the oxygen reduction reaction (ORR) in terms of onset potential and current density because of high graphitic N and pyridinic N content. The enwrapped Fe/Fe3C nanoparticles and Fe-Nx active sites in these samples could also boost the ORR activity synergistically. Moreover, sample Fe-N2-800 demonstrates a dominant four electron reduction process, as well as excellent long-term operation stability and methanol crossover resistance. Thus, the N-doped Fe/Fe3C@C composites derived from the HMT-incorporated MIL-100-Fe are promising electrocatalysts to replace Pt/C for ORR in practical applications.

Metal organic framework MIL-101(Cr) for dehydration reactions

Indian Academy of Sciences (India)

under vapour phase conditions in the temperature range of 513–533 K and time on stream (TOS) at 513 K. Cr-MIL-101 ... gies and potential applications in gas storage, sep- aration ... these materials have not been explored much. Recently .... The products were collected in ice cold trap and ... There is no change in the crys-.

Ni-Pt nanoparticles growing on metal organic frameworks (MIL-96) with enhanced catalytic activity for hydrogen generation from hydrazine at room temperature.

Science.gov (United States)

Wen, Lan; Du, Xiaoqiong; Su, Jun; Luo, Wei; Cai, Ping; Cheng, Gongzhen

2015-04-07

Well-dispersed bimetallic Ni-Pt nanoparticles (NPs) with different compositions have been successfully grown on the MIL-96 by a simple liquid impregnation method using NaBH4 as the reducing agent. Powder X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray spectroscopy, N2 adsorption-desorption, and inductively coupled plasma-atomic emission spectroscopy measurements were employed to characterize the NiPt/MIL-96. Catalytic activity of NiPt/MIL-96 catalysts was tested in the hydrogen generation from the aqueous alkaline solution of hydrazine at room temperature. These catalysts are composition dependent on their catalytic activity, while Ni64Pt36/MIL-96 exhibits the highest catalytic activity among all the catalysts tested, with a turnover frequency value of 114.3 h(-1) and 100% hydrogen selectivity. This excellent catalytic performance might be due to the synergistic effect of the MIL-96 support and NiPt NPs, while NiPt NPs supported on other conventional supports, such as SiO2, carbon black, γ-Al2O3, poly(N-vinyl-2-pyrrolidone) (PVP), and the physical mixture of NiPt and MIL-96, all of them exhibit inferior catalytic activity compared to that of NiPt/MIL-96.

Research of mercury removal from sintering flue gas of iron and steel by the open metal site of Mil-101(Cr).

Science.gov (United States)

Zhao, Songjian; Mei, Jian; Xu, Haomiao; Liu, Wei; Qu, Zan; Cui, Yong; Yan, Naiqiang

2018-06-05

Metal-organic frameworks (MOFs) adsorbent Mil-101(Cr) was introduced for the removal of elemental mercury from sintering flue gas. Physical and chemical characterization of the adsorbents showed that MIL-101(Cr) had the largest BET surface area, high thermal stability and oxidation capacity. Hg 0 removal performance analysis indicated that the Hg 0 removal efficiency of MIL-101(Cr) increased with the increasing temperature and oxygen content. Besides, MIL-101(Cr) had the highest Hg 0 removal performance compared with Cu-BTC, UiO-66 and activated carbon, which can reach about 88% at 250 °C. The XPS and Hg-TPD methods were used to analyze the Hg 0 removal mechanism; the results show that Hg 0 was first adsorbed on the surface of Mil-101(Cr), and then oxidized by the open metal site Cr 3+ . The generated Hg 2+ was then combined surface adsorbed oxygen of adsorbent to form HgO, and the open metal site Cr 2+ was oxidized to Cr 3+ by surface active oxygen again. Furthermore, MIL-101(Cr) had good chemical and thermal stability. Copyright © 2017 Elsevier B.V. All rights reserved.

Evaluation of electrical test conditions in MIL-M-38510 slash sheets

Science.gov (United States)

Sandgren, K.

1980-08-01

Adequacy of MIL-M-38510 slash sheet requirements for electrical test conditions in an automated test environment were evaluated. Military temperature range commercial devices of 13 types from 6 manufacturers were purchased. Software for testing these devices and for varying the test conditions was written for the Tektronix S-3260 test system. The devices were tested to evaluate the effects of pin-condition settling time, measurement sequence of the same and different D-C parameters, temperature sequence, differently defined temperature ambients, variable measurement conditions, sequence of time measurements, pin-application sequence, and undesignated pin condition ambiguity. An alternative to current tri-state enable and disable time measurements is proposed; S-3260 'open' and 'ground' conditions are characterized; and suggestions for changes in MIL-M-38510 slash sheet specifications and MIL-STD-883 test methods are proposed, both to correct errors and ambiguities and to facilitate the gathering of repeatable data on automated test equipment. Data obtained showed no sensitivity to measurement or temperature sequence nor to temperature ambient, provided that test times were not excessive. V sub ICP tests and some low current measurements required allowance for a pin condition settling time because of the test system speed. Some pin condition application sequences yielded incorrect measurements. Undefined terminal conditions of output pins were found to affect I sub OS and propagation delay time measurements. Truth table test results varied with test frequency and V sub IL for low-power Schottky devices.

Fabrication of metal-organic framework MIL-88B films on stainless steel fibers for solid-phase microextraction of polychlorinated biphenyls.

Science.gov (United States)

Wu, Ye-Yu; Yang, Cheng-Xiong; Yan, Xiu-Ping

2014-03-21

Metal-organic frameworks (MOFs) have received considerable attention as novel sorbents for sample preparation due to their fascinating structures and functionalities such as large surface area, good thermal stability, and uniform structured nanoscale cavities. Here, we report the application of a thermal and solvent stable MOF MIL-88B with nanosized bipyramidal cages and large surface area for solid-phase microextraction (SPME) of polychlorinated biphenyls (PCBs). Novel MIL-88B coated fiber was fabricated via an in situ hydrothermal growth of MIL-88B film on etched stainless steel fiber. The MIL-88B coated fiber gave large enhancement factors (757-2243), low detection limits (0.45-1.32ngL(-1)), and good linearity (5-200ngL(-1)) for PCBs. The relative standard deviation (RSD) for six replicate extractions of PCBs at 100ngL(-1) on MIL-88B coated fiber ranged from 4.2% to 8.7%. The recoveries for spiked PCBs (10ngL(-1)) in water and soil samples were in the range of 79.7-103.2%. Besides, the MIL-88B coated fiber was stable enough for 150 extraction cycles without significant loss of extraction efficiency. The developed method was successfully applied to the determination of PCBs in water samples and soil samples. Copyright © 2014 Elsevier B.V. All rights reserved.

Deposition of CdS nanoparticles on MIL-53(Fe) metal-organic framework with enhanced photocatalytic degradation of RhB under visible light irradiation

Energy Technology Data Exchange (ETDEWEB)

Hu, Longxing, E-mail: hulxhhhb@shu.edu.cn [School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444 (China); Deng, Guihua [School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444 (China); Lu, Wencong [College of Sciences, Shanghai University, Shanghai 200444 (China); Pang, Siwei; Hu, Xing [School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444 (China)

2017-07-15

Graphical abstract: The CdS/MIL-53(Fe) photocatalyst has been synthesized by a facile two-step solvothermal method and applied for photocatalytic degradation of organic pollutant RhB under visible light irradiation. - Highlights: • A novel CdS/MIL-53(Fe) photocatalyst was successfully synthesized via a facile two-step solvothermal method. • CdS/MIL-53(Fe) exhibited an enhanced visible-light photocatalytic degradation of RhB in water. • The mechanisms for the formation of CdS/MIL-53(Fe) and photocatalytic degradation of RhB were proposed. - Abstract: A novel composite, CdS/MIL-53(Fe), was successfully fabricated via a facile solvothermal method and characterized with XRD, SEM, TEM, XPS, FT-IR and UV–vis DRS. The results showed that the fabrication was able to result in a good dispersion of CdS nanoparticles onto MIL-53(Fe). The photocatalytic activities of the as-synthesized composite were investigated through the degradation of Rhodamine B (RhB) in water under visible light irradiation. It was found that the composite prepared at the mass ratio of CdS to MIL-53(Fe) of 1.5:1 displayed the highest photocatalytic activity. An approximately 92.5% of photocatalytic degradation of RhB was achieved at 0.5 g/L of 1.5-CdS/MIL dosage, 10 mg/L of initial RhB concentration and 23 °C of reaction temperature under visible light irradiation. The RhB photocatalytic degradation followed well the first-order kinetics equation and the increased catalyst dosage and optimal initial RhB concentration were responsible for the enhanced photocatalytic degradation. Quenching tests revealed that the predominant free radicals in the CdS/MIL-(53)-RhB{sub aq}-visible light system was O{sub 2}{sup −}·; nevertheless, h{sup +} and ·OH also contributed to a certain degree. The enhanced photocatalytic performance was ascribed to the formation of heterojunction structure between CdS and MIL-53(Fe) which significantly suppressed the recombination of photogenerated electron-hole pairs

Deposition of CdS nanoparticles on MIL-53(Fe) metal-organic framework with enhanced photocatalytic degradation of RhB under visible light irradiation

International Nuclear Information System (INIS)

Hu, Longxing; Deng, Guihua; Lu, Wencong; Pang, Siwei; Hu, Xing

2017-01-01

Graphical abstract: The CdS/MIL-53(Fe) photocatalyst has been synthesized by a facile two-step solvothermal method and applied for photocatalytic degradation of organic pollutant RhB under visible light irradiation. - Highlights: • A novel CdS/MIL-53(Fe) photocatalyst was successfully synthesized via a facile two-step solvothermal method. • CdS/MIL-53(Fe) exhibited an enhanced visible-light photocatalytic degradation of RhB in water. • The mechanisms for the formation of CdS/MIL-53(Fe) and photocatalytic degradation of RhB were proposed. - Abstract: A novel composite, CdS/MIL-53(Fe), was successfully fabricated via a facile solvothermal method and characterized with XRD, SEM, TEM, XPS, FT-IR and UV–vis DRS. The results showed that the fabrication was able to result in a good dispersion of CdS nanoparticles onto MIL-53(Fe). The photocatalytic activities of the as-synthesized composite were investigated through the degradation of Rhodamine B (RhB) in water under visible light irradiation. It was found that the composite prepared at the mass ratio of CdS to MIL-53(Fe) of 1.5:1 displayed the highest photocatalytic activity. An approximately 92.5% of photocatalytic degradation of RhB was achieved at 0.5 g/L of 1.5-CdS/MIL dosage, 10 mg/L of initial RhB concentration and 23 °C of reaction temperature under visible light irradiation. The RhB photocatalytic degradation followed well the first-order kinetics equation and the increased catalyst dosage and optimal initial RhB concentration were responsible for the enhanced photocatalytic degradation. Quenching tests revealed that the predominant free radicals in the CdS/MIL-(53)-RhB aq -visible light system was O 2 − ·; nevertheless, h + and ·OH also contributed to a certain degree. The enhanced photocatalytic performance was ascribed to the formation of heterojunction structure between CdS and MIL-53(Fe) which significantly suppressed the recombination of photogenerated electron-hole pairs. Moreover, the

Highly efficient Fenton and enzyme-mimetic activities of NH2-MIL-88B(Fe) metal organic framework for methylene blue degradation.

Science.gov (United States)

He, Jianchuan; Zhang, Yao; Zhang, Xiaodan; Huang, Yuming

2018-03-26

Here, we show that NH 2 -MIL-88B(Fe) can be used as a peroxidase-like catalyst for Fenton-like degradation of methylene blue (MB) in water. The iron-based NH 2 -MIL-88B(Fe) metal organic framework (MOF) was synthesized by a facile and rapid microwave heating method. It was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, powder X-ray diffraction, and the Brunauer-Emmett-Teller method. The NH 2 -MIL-88B(Fe) MOF possesses intrinsic oxidase-like and peroxidase-like activities. The reaction parameters that affect MB degradation were investigated, including the solution pH, NH 2 -MIL-88B(Fe) MOF and H 2 O 2 concentrations, and temperature. The results show that the NH 2 -MIL-88B(Fe) MOF exhibits a wide working pH range (pH 3.0-11.0), temperature tolerance, and good recyclability for MB removal. Under the optimal conditions, complete removal of MB was achieved within 45 min. In addition, removal of MB was above 80% after five cycles, showing the good recyclability of NH 2 -MIL-88B(Fe). The NH 2 -MIL-88B(Fe) MOF has the features of easy preparation, high efficiency, and good recyclability for MB removal in a wide pH range. Electron spin resonance and fluorescence probe results suggest the involvement of hydroxyl radicals in MB degradation. These findings provide new insight into the application of high-efficient MOF-based Fenton-like catalysts for water purification.

Metal-organic frameworks as potential shock absorbers: the case of the highly flexible MIL-53(Al).

Science.gov (United States)

Yot, Pascal G; Boudene, Zoubeyr; Macia, Jasmine; Granier, Dominique; Vanduyfhuys, Louis; Verstraelen, Toon; Van Speybroeck, Veronique; Devic, Thomas; Serre, Christian; Férey, Gérard; Stock, Norbert; Maurin, Guillaume

2014-08-28

The mechanical energy absorption ability of the highly flexible MIL-53(Al) MOF material was explored using a combination of experiments and molecular simulations. A pressure-induced transition between the large pore and the closed pore forms of this solid was revealed to be irreversible and associated with a relatively large energy absorption capacity. Both features make MIL-53(Al) the first potential MOF candidate for further use as a shock absorber.

Endurance Pump Tests With Fresh and Purified MIL-PRF-83282 Hydraulic Fluid

National Research Council Canada - National Science Library

Sharma, Shashi

1999-01-01

.... Two endurance pump tests were conducted with F-16 aircraft hydraulic pumps, using both fresh and purified MIL-PRF-83282 hydraulic fluid, to determine if fluid purification had any adverse effect on pump life...

Proua direktor ohjas ka kineaste / Sigrid Saarep

Index Scriptorium Estoniae

Saarep, Sigrid

2008-01-01

Dokumentaalfilm "Inge Tederi maailm". Stsenarist Juta Kivimäe, režissöör Rein Raamat, operaatorid Arvo Vilu ja Rein Raamat, montaaž Rein Raamat, produtsendid Helvi ja Rein Raamat. Raamat-Film OÜ, 2007

Photoelectrochemical detection of the herbicide clethodim by using the modified metal-organic framework amino-MIL-125(Ti)/TiO2

International Nuclear Information System (INIS)

Jin, Dangqin; Yu, Liangyun; Xu, Qin; Hu, Xiaoya

2015-01-01

We describe a sensitive photoelectrochemical (PEC) sensor for the determination of the herbicide clethodim. The PEC sensor was constructed by using amino-MIL-125/TiO 2 (MIL stands for Materials from Institute Lavoisier), an amino-functionalized metal-organic framework (MOF) modified with TiO2. The amino-MIL-125/TiO 2 was synthesized by a simple one-step solvothermal method and placed on a glassy carbon electrode where it displays photoelectrocatalytic activity. Scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy and X-ray diffractometry (XRD) were used to characterize the amino-MIL-125/TiO2. In the sensing process, amino-MIL-125/TiO 2 is illuminated by visible light to produce electrons. These excited electrons are delivered to the glassy carbon electrode, leaving positively charged holes (h+) on the surface of the amino-MIL-125/TiO 2 . The holes react with H 2 O to generate hydroxy radicals (•OH). Clethodim rapidly attacks the hydroxy radicals and improves the efficiency of charge separation, this leading to an enhanced photocurrent. Under the optimal experimental conditions, this photoelectrochemical method enables clethodim to be quantified in the concentration range from 0.2 to 25 μmol L −1 , with a detection limit (3 S/N) of 10 nmol L −1 . The assay was applied to the determination of clethodim in soil samples, and results were in acceptable agreement with data obtained by liquid chromatography/mass spectrometry. (author)

Fluorescent metal-organic framework MIL-53(Al) for highly selective and sensitive detection of Fe3+ in aqueous solution.

Science.gov (United States)

Yang, Cheng-Xiong; Ren, Hu-Bo; Yan, Xiu-Ping

2013-08-06

Fluorescent metal-organic frameworks (MOFs) have received great attention in sensing application. Here, we report the exploration of fluorescent MIL-53(Al) for highly selective and sensitive detection of Fe(3+) in aqueous solution. The cation exchange between Fe(3+) and the framework metal ion Al(3+) in MIL-53(Al) led to the quenching of the fluorescence of MIL-53(Al) due to the transformation of strong-fluorescent MIL-53(Al) to weak-fluorescent MIL-53(Fe), allowing highly selective and sensitive detection of Fe(3+) in aqueous solution with a linear range of 3-200 μM and a detection limit of 0.9 μM. No interferences from 0.8 M Na(+); 0.35 M K(+); 11 mM Cu(2+); 10 mM Ni(2+); 6 mM Ca(2+), Pb(2+), and Al(3+); 5.5 mM Mn(2+); 5 mM Co(2+) and Cr(3+); 4 mM Hg(2+), Cd(2+), Zn(2+), and Mg(2+); 3 mM Fe(2+); 0.8 M Cl(-); 60 mM NO2(-) and NO3(-); 10 mM HPO4(2-), H2PO4(-), SO3(2-), SO4(2-), and HCOO(-); 8 mM CO3(2-), HCO3(-), and C2O4(2-); and 5 mM CH3COO(-) were found for the detection of 150 μM Fe(3+). The possible mechanism for the quenching effect of Fe(3+) on the fluorescence of MIL-53(Al) was elucidated by inductively coupled plasma-mass spectrometry, X-ray diffraction spectrometry, and Fourier transform infrared spectrometry. The specific cation exchange behavior between Fe(3+) and the framework Al(3+) along with the excellent stability of MIL-53(Al) allows highly selective and sensitive detection of Fe(3+) in aqueous solution. The developed method was applied to the determination of Fe(3+) in human urine samples with the quantitative spike recoveries from 98.2% to 106.2%.

Geochemistry of Lunar Highland Meteorites Mil, 090034, 090036 AND 090070

Science.gov (United States)

Shirai, N.aoki; Ebihara, M.; Sekimoto, S.; Yamaguchi, A.; Nyquist, L.; Shih, C.-Y.; Park, J.; Nagao, K.

2012-01-01

Apollo and Luna samples were collected from a restricted area on the near side of the Moon, while the source craters of the lunar meteorites are randomly distributed. For example, Takeda et al. [1] and Yamaguchi et al. [2] found a variety of lithic clasts in Dho 489 and Y 86032 which were not represented by Apollo samples, and some of these clasts have lower rare earth elements (REE) and FeO abundances than Apollo anorthosites, respectively. Takeda et al. [1] and Yamaguchi et al. [2] concluded that Dho 489 and Y 86032 originated from the lunar farside. Therefore, lunar meteorites provide an opportunity to study lunar surface rocks from areas not sampled by Apollo and Luna missions. Three lunar anorthitic breccias (MIL 090034, 090036 and 090070) were found on the Miller Range Ice Field in Antarctica during the 2009-2010 ANSMET season [3]. In this study, we determined elemental abudnances for MIL 090034, 090036 and 090070 by using INAA and aimed to characterize these meteorites in chemical compositions in comparison with those for other lunar meteorites and Apollo samples.

Performance of metal-organic framework MIL-101 after surfactant modification in the extraction of endocrine disrupting chemicals from environmental water samples.

Science.gov (United States)

Huang, Zhenzhen; Lee, Hian Kee

2015-10-01

The research presented in this paper explored the modification and application of a metal-organic framework, MIL-101, with nonionic surfactant-Triton X-114 in dispersive solid-phase extraction for the preconcentration of four endocrine disrupting chemicals (estrone, 17α-ethynylestradiol, estriol and diethylstilbestrol) from environmental water samples. Triton X-114 molecules could be adsorbed by the hydrophobic surface of the MIL-101 crystals, and thus improved the dispersibility of MIL-101 in aqueous solution by serving as a hydrophilic coating. Cloud point phase separation from Triton X-114 accelerated the separation of extracts from the aqueous matrix. The proposed method combines the favorable attributes of strong adsorption capacity resulting from the porous structure of MIL-101 and self-assembly of Triton X-114 molecules. Post-extraction derivatization using N-methyl-N-(trimethylsilyl)trifluoroacetamide was employed to facilitate the quantitative determination of the extracts by gas chromatography-mass spectrometry. The main factors affecting the preparation of modified MIL-101, and extraction of the analytes, such as the amount of surfactant, the ultrasonic and vortex durations, solution pH and desorption conditions, were investigated in detail. Under the optimized conditions, the present method yielded low limits of detection (0.006-0.023 ng/mL), good linearity from 0.09 to 45 ng/mL (coefficients of determination higher than 0.9980) and acceptable precision (relative standard deviations of 2.2-13%). The surface modified MIL-101 was demonstrated to be effective for the extraction of the selected estrogens from aqueous samples, giving rise to markedly improved extraction performance compared to the unmodified MIL-101. Copyright © 2015 Elsevier B.V. All rights reserved.

Gestion intégrée du mildiou du mil en station au centre régional de ...

African Journals Online (AJOL)

user

Le mil (Pennicetum glaucum) L.R.Br constitue 75% de la production céréalière du Niger. Cependant, son rendement est très faible dû à plusieurs types de contraintes. La maladie du mildiou du mil causé par un champignon Sclerospora graminicola (Sacc) Schroët, occupe une place importante. L'objectif de cette étude.

Media and Information Literacy (MIL) in journalistic learning: strategies for accurately engaging with information and reporting news

Science.gov (United States)

Inayatillah, F.

2018-01-01

In the era of digital technology, there is abundant information from various sources. This ease of access needs to be accompanied by the ability to engage with the information wisely. Thus, information and media literacy is required. From the results of preliminary observations, it was found that the students of Universitas Negeri Surabaya, whose major is Indonesian Literature, and they take journalistic course lack of the skill of media and information literacy (MIL). Therefore, they need to be equipped with MIL. The method used is descriptive qualitative, which includes data collection, data analysis, and presentation of data analysis. Observation and documentation techniques were used to obtain data of MIL’s impact on journalistic learning for students. This study aims at describing the important role of MIL for students of journalistic and its impact on journalistic learning for students of Indonesian literature batch 2014. The results of this research indicate that journalistic is a science that is essential for students because it affects how a person perceives news report. Through the reinforcement of the course, students can avoid a hoax. MIL-based journalistic learning makes students will be more skillful at absorbing, processing, and presenting information accurately. The subject influences students in engaging with information so that they can report news credibly.

Solid-State NMR Spectroscopy Proves the Presence of Penta-coordinated Sc Sites in MIL-100(Sc).

Science.gov (United States)

Giovine, Raynald; Volkringer, Christophe; Ashbrook, Sharon E; Trébosc, Julien; McKay, David; Loiseau, Thierry; Amoureux, Jean-Paul; Lafon, Olivier; Pourpoint, Frédérique

2017-07-18

Advanced solid-state NMR methods and first-principles calculations demonstrate for the first time the formation of penta-coordinated scandium sites. These coordinatively unsaturated sites were shown during the thermal activation of scandium-based metal-organic frameworks (MOFs). A 45 Sc NMR experiment allows their specific observation in activated Sc 3 BTB 2 (H 3 BTB=1,3,5-tris(4-carboxyphenyl)benzene) and MIL-100(Sc) MOFs. The assignment of the ScO 5 groups is supported by the DFT calculations of NMR parameters. The presence of ScO 5 Lewis acid sites in MIL-100(Sc) explains furthermore its catalytic activity. The first NMR experiment to probe 13 C- 45 Sc distances is also introduced. This advanced solid-state NMR pulse sequence allows the demonstration of the shrinkage of the MIL-100(Sc) network when the activation temperature is raised. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Mineralogy and Petrography of MIL 090001, a Highly Altered CV Chondrite from the Reduced Sub-Group

Science.gov (United States)

Keller, Lindsay P.

2011-01-01

MIL 090001 is a large (greater than 6 kg) CV chondrite from the reduced subgroup (CV(sub red)) that was recovered during the 2009-2010 ANSMET field season [1]. The CV(sub red) subgroup meteorites retain primitive characteristics and have escaped the Na and Fe meta-somatism that affected the oxidized (CV(sub ox)) subgroups. MIL 090001 is, however, reported to be altered [1], and thus a major objective of this study is to characterize its mineralogy and petrography and the extent of the alteration.

Theoretical study of carbon dioxide adsorption and diffusion in MIL-127(Fe) metal organic framework

Science.gov (United States)

Pongsajanukul, Pavee; Parasuk, Vudhichai; Fritzsche, Siegfried; Assabumrungrat, Suttichai; Wongsakulphasatch, Suwimol; Bovornratanaraks, Thiti; Chokbunpiam, Tatiya

2017-07-01

The UFF force field is found to reproduce the adsorption isotherm of carbon dioxide in MIL-127(Fe) well. It has therefore been used to investigate the structure and self-diffusion of carbon dioxide molecules in the MIL which is a candidate for membrane or adsorption application. The structure of the adsorbed phase shows different regions of high concentration. The highest particle concentration was found in the central regions of the channels. The self-diffusion coefficient slightly increases with the loading for low concentration of guest molecules while for higher concentrations it decreases because of mutual hindrance of guest molecules.

Multiphysics Modeling and Simulations of Mil A46100 Armor-Grade Martensitic Steel Gas Metal Arc Welding Process

Science.gov (United States)

2013-05-23

further. Application of the Scheil additive rule to MIL A46100 yielded the CCT diagram displayed in Fig. 8. The diagram displayed in Fig. 8 is obtained...computational procedure used to construct the TTTand CCT diagrams could be used to predict the incubation time for austenite decomposition under an...of austenite into allotriomorphic ferrite is Fig. 8 MIL A46100 CCT diagram corresponding to the TTT dia- gram displayed in Figure 7(a): CCT curves and

Fabrication Parameters of Asymmetric Mixed Matrix Matrimid-MIL-53/PMHS Membrane for CO2/CH4 Separation

Directory of Open Access Journals (Sweden)

Fatereh Dorosti

2017-03-01

Full Text Available Asymmetrically mixed matrix Matrimid-MIL-53 membranes with silicone cover layer were fabricated. For better understanding of membrane fabrication process, three main parameters of fabrication, Matrimid concentration, silicone concentration and weight percentage of metal organic framework (MIL-53 particles, were optimized by an experimental design method. Cross-section SEM images were used to study the membrane structure and polymer-particles interface. Moreover, thermal resistance of the membranes and the existence of various bonds in them were investigated by FTIR and TGA analyses. The results showed that membranes had porous structure with finger-like morphology. At low and moderate percentages of particles, there were no non-selective voids observed at polymer-particles interface. The thermal resistance of membranes increased with the increase of MIL-53 weight percentage and the destruction temperature of polymer increased from 410°C to 450°C. The permeability tests results showed that the Matrimid (20% wt-MIL-53(15% wt/PMHS (10%wt membrane exhibited the highest level of CO2/CH4 selectivity (23.6. However, in the membrane with 30 wt% particles loading, selectivity decreased due to particles agglomeration and void formation. The experimental design results showed that the concentration of silicone in covering solution had significant effect. CO2 and CH4 permeability decreased and ideal selectivity of CO2/CH4 increased with silicone concentration enhancement. Although the Matrimid concentration had a little effect on CO2/CH4 ideal selectivity, its enhancement increased the selectivity of the gases. The optimization results showed the membrane with 17.8% of Matrimd polymer, 13.2% of silicone polymer and 15.5 wt% of MIL-53 particle displayed the highest selectivity and CO2 permeability.

Deposition of CdS nanoparticles on MIL-53(Fe) metal-organic framework with enhanced photocatalytic degradation of RhB under visible light irradiation

Science.gov (United States)

Hu, Longxing; Deng, Guihua; Lu, Wencong; Pang, Siwei; Hu, Xing

2017-07-01

A novel composite, CdS/MIL-53(Fe), was successfully fabricated via a facile solvothermal method and characterized with XRD, SEM, TEM, XPS, FT-IR and UV-vis DRS. The results showed that the fabrication was able to result in a good dispersion of CdS nanoparticles onto MIL-53(Fe). The photocatalytic activities of the as-synthesized composite were investigated through the degradation of Rhodamine B (RhB) in water under visible light irradiation. It was found that the composite prepared at the mass ratio of CdS to MIL-53(Fe) of 1.5:1 displayed the highest photocatalytic activity. An approximately 92.5% of photocatalytic degradation of RhB was achieved at 0.5 g/L of 1.5-CdS/MIL dosage, 10 mg/L of initial RhB concentration and 23 °C of reaction temperature under visible light irradiation. The RhB photocatalytic degradation followed well the first-order kinetics equation and the increased catalyst dosage and optimal initial RhB concentration were responsible for the enhanced photocatalytic degradation. Quenching tests revealed that the predominant free radicals in the CdS/MIL-(53)-RhBaq-visible light system was O2-rad ; nevertheless, h+ and rad OH also contributed to a certain degree. The enhanced photocatalytic performance was ascribed to the formation of heterojunction structure between CdS and MIL-53(Fe) which significantly suppressed the recombination of photogenerated electron-hole pairs. Moreover, the reusability of 1.5-CdS/MIL composite was also studied.

Synthesis of highly efficient α-Fe{sub 2}O{sub 3} catalysts for CO oxidation derived from MIL-100(Fe)

Energy Technology Data Exchange (ETDEWEB)

Cui, Lifeng; Zhao, Di; Yang, Yang [Environment and Low-Carbon Research Center, School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093 (China); Wang, Yuxin [Institute of Applied Biotechnology, Taizhou Vocation & Technical College, Taizhou, Zhejiang 318000 (China); Zhang, Xiaodong, E-mail: fatzhxd@126.com [Environment and Low-Carbon Research Center, School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093 (China)

2017-03-15

Mesoporous hollow α-Fe{sub 2}O{sub 3} bricks were synthesized via a hydrothermal method to create a precursor MIL-100(Fe) and a subsequent calcination process was applied to prepare the Fe{sub 2}O{sub 3} phase. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) results showed the morphology of hollow α-Fe{sub 2}O{sub 3} bricks which inherited from the MIL-100(Fe) template. The catalytic activities of hollow α-Fe{sub 2}O{sub 3} bricks for CO oxidation are studied in this work. Due to better low temperature reduction behavior, mesoporous hollow α-Fe{sub 2}O{sub 3} bricks obtained at calcination temperature of 430 °C displayed high catalytic activity and excellent stability with a complete CO conversion temperature (T{sub 100}) of 255 °C. - Graphical abstract: Synthesis of highly efficient α-Fe{sub 2}O{sub 3} catalysts for CO oxidation derived from MIL-100(Fe). - Highlights: • α-Fe{sub 2}O{sub 3} is prepared by the thermolysis of a MIL-100(Fe) template. • The morphology of hollow α-Fe{sub 2}O{sub 3} bricks is inherited from MIL-100(Fe) template. • α-Fe{sub 2}O{sub 3} obtained at calcined temperature of 430 °C displays high activity • Enhanced activity is attributed to crystal plane and reduction behavior.

High performance liquid chromatography of substituted aromatics with the metal-organic framework MIL-100(Fe): Mechanism analysis and model-based prediction.

Science.gov (United States)

Qin, Weiwei; Silvestre, Martin Eduardo; Li, Yongli; Franzreb, Matthias

2016-02-05

Metal-organic framework (MOF) MIL-100(Fe) with well-defined thickness was homogenously coated onto the outer surface of magnetic microparticles via a liquid-phase epitaxy method. The as-synthesized MIL-100(Fe) was used as stationary phase for high-performance liquid chromatography (HPLC) and separations of two groups of mixed aromatic hydrocarbons (toluene, styrene and p-xylene; acetanilide, 2-nirtoaniline and 1-naphthylamine) using methanol/water as mobile phase were performed to evaluate its performance. Increasing water content of the mobile phase composition can greatly improve the separations on the expense of a longer elution time. Stepwise elution significantly shortens the elution time of acetanilide, 2-nirtoaniline and 1-naphthylamine mixtures, while still achieving a baseline separation. Combining the experimental results and in-depth modeling using a recently developed chromatographic software (ChromX), adsorption equilibrium parameters, including the affinities and maximum capacities, for each analyte toward the MIL-100(Fe) are obtained. In addition, the pore diffusivity of aromatic hydrocarbons within MIL-100(Fe) was determined to be 5×10(-12)m(2)s(-1). While the affinities of MIL-100(Fe) toward the analyte molecules differs much, the maximum capacities of the analytes are in a narrow range with q*MOFmax,toluene=3.55molL(-1), q*MOFmax,styrene or p-xylene=3.53molL(-1), and q*MOFmax,anilines=3.12molL(-1) corresponding to approximately 842 toluene and 838 styrene or p-xylene, and 740 aniline molecules per MIL-100(Fe) unit cell, respectively. Copyright © 2016 Elsevier B.V. All rights reserved.

Edificio de viviendas. Ca´Granda, Milán

Directory of Open Access Journals (Sweden)

Gandolfi, Vittorio

1959-04-01

Full Text Available Con el nombre de "Ca'Granda" se ha querido designar el distrito, capaz de 6.000 habitantes, que el Ayuntamiento de Milán está construyendo, y en parte ha construido ya, en la zona detrás de las calles Fulvio Testi y Ospedale Maggiore; es decir, en el sector norte de la ciudad correspondiente a la dirección de mayor impulso del desarrollo urbanístico de lo habitado.

Synthesis of a hybrid MIL-101(Cr)/ZTC composite for hydrogen storage applications

CSIR Research Space (South Africa)

Musyoka, Nicholas M

2016-06-01

Full Text Available Metal–organic frameworks (MOFs) hybrid composites have recently attracted considerable attention in hydrogen storage applications. In this study a hybrid composite of zeolite templated carbon (ZTC) and Cr-based MOF (MIL-101) was synthesised...

Noble metals can have different effects on photocatalysis over metal-organic frameworks (MOFs): a case study on M/NH₂-MIL-125(Ti) (M=Pt and Au).

Science.gov (United States)

Sun, Dengrong; Liu, Wenjun; Fu, Yanghe; Fang, Zhenxing; Sun, Fangxiang; Fu, Xianzhi; Zhang, Yongfan; Li, Zhaohui

2014-04-14

M-doped NH2-MIL-125(Ti) (M=Pt and Au) were prepared by using the wetness impregnation method followed by a treatment with H2 flow. The resultant samples were characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), X-ray absorption fine structure (XAFS) analyses, N2-sorption BET surface area, and UV/Vis diffuse reflectance spectroscopy (DRS). The photocatalytic reaction carried out in saturated CO2 with triethanolamine (TEOA) as sacrificial agent under visible-light irradiations showed that the noble metal-doping on NH2-MIL-125(Ti) promoted the photocatalytic hydrogen evolution. Unlike that over pure NH2-MIL-125(Ti), in which only formate was produced, both hydrogen and formate were formed over Pt- and Au-loaded NH2-MIL-125(Ti). However, Pt and Au have different effects on the photocatalytic performance for formate production. Compared with pure NH2-MIL-125(Ti), Pt/NH2-MIL-125(Ti) showed an enhanced activity for photocatalytic formate formation, whereas Au has a negative effect on this reaction. To elucidate the origin of the different photocatalytic performance, electron spin resonance (ESR) analyses and density functional theory (DFT) calculations were carried out over M/NH2-MIL-125(Ti).The photocatalytic mechanisms over M/NH2-MIL-125(Ti) (M=Pt and Au) were proposed. For the first time, the hydrogen spillover from the noble metal Pt to the framework of NH2-MIL-125(Ti) and its promoting effect on the photocatalytic CO2 reduction is revealed. The elucidation of the mechanism on the photocatalysis over M/NH2-MIL-125(Ti) can provide some guidance in the development of new photocatalysts based on MOF materials. This study also demonstrates the potential of using noble metal-doped MOFs in photocatalytic reactions involving hydrogen as a reactant, like hydrogenation reactions. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Amine-functionalized MIL-53(Al)-coated stainless steel fiber for efficient solid-phase microextraction of synthetic musks and organochlorine pesticides in water samples.

Science.gov (United States)

Xie, Lijun; Liu, Shuqin; Han, Zhubing; Jiang, Ruifen; Zhu, Fang; Xu, Weiqin; Su, Chengyong; Ouyang, Gangfeng

2017-09-01

The fiber coating is the key part of the solid-phase microextraction (SPME) technique, and it determines the sensitivity, selectivity, and repeatability of the analytical method. In this work, amine (NH 2 )-functionalized material of Institute Lavoisier (MIL)-53(Al) nanoparticles were successfully synthesized, characterized, and applied as the SPME fiber coating for efficient sample pretreatment owing to their unique structures and excellent adsorption properties. Under optimized conditions, the NH 2 -MIL-53(Al)-coated fiber showed good precision, low limits of detection (LODs) [0.025-0.83 ng L -1 for synthetic musks (SMs) and 0.051-0.97 ng L -1 for organochlorine pesticides (OCPs)], and good linearity. Experimental results showed that the NH 2 -MIL-53(Al) SPME coating was solvent resistant and thermostable. In addition, the extraction efficiencies of the NH 2 -MIL-53(Al) coating for SMs and OCPs were higher than those of commercially available SPME fiber coatings such as polydimethylsiloxane, polydimethylsiloxane-divinylbenzene, and polyacrylate. The reasons may be that the analytes are adsorbed on NH 2 -MIL-53(Al) primarily through π-π interactions, electron donor-electron acceptor interactions, and hydrogen bonds between the analytes and organic linkers of the material. Direct immersion (DI) SPME-gas chromatography-mass spectrometry methods based on NH 2 -MIL-53(Al) were successfully applied for the analysis of tap and river water samples. The recoveries were 80.3-115% for SMs and 77.4-117% for OCPs. These results indicate that the NH 2 -MIL-53(Al) coating may be a promising alternative to SPME coatings for the enrichment of SMs and OCPs.

Sustainable Catalysis: Rational Pd Loading on MIL-101Cr-NH2 for More Efficient and Recyclable Suzuki–Miyaura Reactions

Science.gov (United States)

Pascanu, Vlad; Yao, Qingxia; Bermejo Gómez, Antonio; Gustafsson, Mikaela; Yun, Yifeng; Wan, Wei; Samain, Louise; Zou, Xiaodong; Martín-Matute, Belén

2013-01-01

Palladium nanoparticles have been immobilized into an amino-functionalized metal–organic framework (MOF), MIL-101Cr-NH2, to form Pd@MIL-101Cr-NH2. Four materials with different loadings of palladium have been prepared (denoted as 4-, 8-, 12-, and 16 wt %Pd@MIL-101Cr-NH2). The effects of catalyst loading and the size and distribution of the Pd nanoparticles on the catalytic performance have been studied. The catalysts were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared (FTIR) spectroscopy, powder X-ray diffraction (PXRD), N2-sorption isotherms, elemental analysis, and thermogravimetric analysis (TGA). To better characterize the palladium nanoparticles and their distribution in MIL-101Cr-NH2, electron tomography was employed to reconstruct the 3D volume of 8 wt %Pd@MIL-101Cr-NH2 particles. The pair distribution functions (PDFs) of the samples were extracted from total scattering experiments using high-energy X-rays (60 keV). The catalytic activity of the four MOF materials with different loadings of palladium nanoparticles was studied in the Suzuki–Miyaura cross-coupling reaction. The best catalytic performance was obtained with the MOF that contained 8 wt % palladium nanoparticles. The metallic palladium nanoparticles were homogeneously distributed, with an average size of 2.6 nm. Excellent yields were obtained for a wide scope of substrates under remarkably mild conditions (water, aerobic conditions, room temperature, catalyst loading as low as 0.15 mol %). The material can be recycled at least 10 times without alteration of its catalytic properties. PMID:24265270

Metal organic framework MIL-101 for radioiodine capture and storage

Science.gov (United States)

Assaad, Thaer; Assfour, Bassem

2017-09-01

we report on the use of metal organic frameworks(MOFs) for radioiodine recovery and storage. One MOF (namely MIL-101) was prepared and investigated in detail to demonstrate the iodine removal efficiency and capacity of MOFs. The typical sorption kinetics and uptake isotherms were measured using radioactive iodine (123 I) for the first time. Our measurements indicate that MOFs can capture and store radioiodine in very high efficiency and fast kinetics.

Enhanced catalytic activity over MIL-100(Fe) loaded ceria catalysts for the selective catalytic reduction of NO{sub x} with NH{sub 3} at low temperature

Energy Technology Data Exchange (ETDEWEB)

Wang, Peng [School of Environmental Science and Technology, Dalian University of Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), Dalian 116024 (China); Sun, Hong [School of Environmental & Chemical Engineering, Dalian Jiaotong University, Dalian 116028 (China); Quan, Xie, E-mail: quanxie@dlut.edu.cn [School of Environmental Science and Technology, Dalian University of Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), Dalian 116024 (China); Chen, Shuo [School of Environmental Science and Technology, Dalian University of Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), Dalian 116024 (China)

2016-01-15

Highlights: • Nano-ceria was successfully encapsulated into MIL-100(Fe) for the SCR of NO{sub x}. • The incorporated ceria in MIL-100(Fe) showed high content of chemisorbed oxygen. • The added ceria into MIL-100(Fe) improved the formation of adsorbed NO{sub 2} species. • The addition of ceria into MIL-100(Fe) enhanced SCR activity at low temperature. - Abstract: The development of catalysts for selective catalytic reduction (SCR) reactions that are highly active at low temperatures and show good resistance to SO{sub 2} and H{sub 2}O is still a challenge. In this study, we have designed and developed a high-performance SCR catalyst based on nano-sized ceria encapsulated inside the pores of MIL-100(Fe) that combines excellent catalytic power with a metal organic framework architecture synthesized by the impregnation method (IM). Transmission electron microscopy (TEM) revealed the encapsulation of ceria in the cavities of MIL-100(Fe). The prepared IM-CeO{sub 2}/MIL-100(Fe) catalyst shows improved catalytic activity both at low temperatures and throughout a wide temperature window. The temperature window for 90% NO{sub x} conversion ranges from 196 to 300 °C. X-ray photoelectron spectroscopy (XPS) and in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) analysis indicated that the nano-sized ceria encapsulated inside MIL-100(Fe) promotes the production of chemisorbed oxygen on the catalyst surface, which greatly enhances the formation of the NO{sub 2} species responsible for fast SCR reactions.

Ni foam-immobilized MIL-101(Cr) nanocrystals toward system integration for hydrogen storage

CSIR Research Space (South Africa)

Ren, Jianwei

2015-10-01

Full Text Available Metal–organic framework (MOF) materials are only obtained as loose powders with low packing density and thermal conductivity. To enable the developed MOF powdered materials to be utilized in a hydrogen storage system, in this study, MIL-101...

B-1 Aircraft Main Hydraulic Pump Tests With MIL-H-87257 Hydraulic Fluid

National Research Council Canada - National Science Library

Sharma, Shashi

1998-01-01

In an effort to convert the B-1 aircraft from MIL-H-5606 to M1-H-87257, the Air Force sponsored a study conducted by Rockwell International from April 1991 through June 1992, under contract F34601-89-C-0401...

Ship-in-a-bottle CMPO in MIL-101(Cr) for selective uranium recovery from aqueous streams through adsorption

Energy Technology Data Exchange (ETDEWEB)

De Decker, Jeroen [Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics, and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, 9000 Ghent (Belgium); Folens, Karel [Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, 9000 Ghent (Belgium); De Clercq, Jeriffa [Department of Materials, Textiles, and Chemical Engineering, Industrial Catalysis and Adsorption Technology (INCAT), Ghent University, Valentin, Vaerwyckweg 1, 9000 Ghent (Belgium); Meledina, Maria; Van Tendeloo, Gustaaf [EMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium); Du Laing, Gijs [Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, 9000 Ghent (Belgium); Van Der Voort, Pascal, E-mail: pascal.vandervoort@ugent.be [Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics, and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, 9000 Ghent (Belgium)

2017-08-05

Highlights: • Highly stable metal-organic framework, MIL-101(Cr), for uses in aqueous, acidic adsorption. • Uranium recovery from low concentration acidic solutions. • One-step ship-around-the-bottle synthetic approach to incorporate CMPO in MIL-101(Cr). • Highly selective U(VI) adsorbent in competition with a high variety of metals, incl. rare earths and transition metals. • Regenerable and reusable adsorbent via 0.1 M nitric acid stripping. - Abstract: Mesoporous MIL-101(Cr) is used as host for a ship-in-a-bottle type adsorbent for selective U(VI) recovery from aqueous environments. The acid-resistant cage-type MOF is built in-situ around N,N-Diisobutyl-2-(octylphenylphosphoryl)acetamide (CMPO), a sterically demanding ligand with high U(VI) affinity. This one-step procedure yields an adsorbent which is an ideal compromise between homogeneous and heterogeneous systems, where the ligand can act freely within the pores of MIL-101, without leaching, while the adsorbent is easy separable and reusable. The adsorbent was characterized by XRD, FTIR spectroscopy, nitrogen adsorption, XRF, ADF-STEM and EDX, to confirm and quantify the successful encapsulation of the CMPO in MIL-101, and the preservation of the host. Adsorption experiments with a central focus on U(VI) recovery were performed. Very high selectivity for U(VI) was observed, while competitive metal adsorption (rare earths, transition metals...) was almost negligible. The adsorption capacity was calculated at 5.32 mg U/g (pH 3) and 27.99 mg U/g (pH 4), by fitting equilibrium data to the Langmuir model. Adsorption kinetics correlated to the pseudo-second-order model, where more than 95% of maximum uptake is achieved within 375 min. The adsorbed U(VI) is easily recovered by desorption in 0.1 M HNO{sub 3}. Three adsorption/desorption cycles were performed.

Ship-in-a-bottle CMPO in MIL-101(Cr) for selective uranium recovery from aqueous streams through adsorption

International Nuclear Information System (INIS)

De Decker, Jeroen; Folens, Karel; De Clercq, Jeriffa; Meledina, Maria; Van Tendeloo, Gustaaf; Du Laing, Gijs; Van Der Voort, Pascal

2017-01-01

Highlights: • Highly stable metal-organic framework, MIL-101(Cr), for uses in aqueous, acidic adsorption. • Uranium recovery from low concentration acidic solutions. • One-step ship-around-the-bottle synthetic approach to incorporate CMPO in MIL-101(Cr). • Highly selective U(VI) adsorbent in competition with a high variety of metals, incl. rare earths and transition metals. • Regenerable and reusable adsorbent via 0.1 M nitric acid stripping. - Abstract: Mesoporous MIL-101(Cr) is used as host for a ship-in-a-bottle type adsorbent for selective U(VI) recovery from aqueous environments. The acid-resistant cage-type MOF is built in-situ around N,N-Diisobutyl-2-(octylphenylphosphoryl)acetamide (CMPO), a sterically demanding ligand with high U(VI) affinity. This one-step procedure yields an adsorbent which is an ideal compromise between homogeneous and heterogeneous systems, where the ligand can act freely within the pores of MIL-101, without leaching, while the adsorbent is easy separable and reusable. The adsorbent was characterized by XRD, FTIR spectroscopy, nitrogen adsorption, XRF, ADF-STEM and EDX, to confirm and quantify the successful encapsulation of the CMPO in MIL-101, and the preservation of the host. Adsorption experiments with a central focus on U(VI) recovery were performed. Very high selectivity for U(VI) was observed, while competitive metal adsorption (rare earths, transition metals...) was almost negligible. The adsorption capacity was calculated at 5.32 mg U/g (pH 3) and 27.99 mg U/g (pH 4), by fitting equilibrium data to the Langmuir model. Adsorption kinetics correlated to the pseudo-second-order model, where more than 95% of maximum uptake is achieved within 375 min. The adsorbed U(VI) is easily recovered by desorption in 0.1 M HNO 3 . Three adsorption/desorption cycles were performed.

Revisiting the Aluminum Trimesate-based MOF (MIL-96): from Structure Determination to the Processing of Mixed Matrix Membranes for CO2 Capture.

KAUST Repository

Benzaqui, Marvin; S. Pillai, Renjith; Sabetghadam, Anahid; Benoit, Virginie; Normand, Pé rine; Marrot, Jerome; Menguy, Nicolas; Montero, David; Shepard, William; Tissot, Antoine; Martineau-Corcos, Charlotte; Sicard, Clé mence; Mihaylov, Mihail; Carn, Florent; Beurroeis, Isabelle; Llewellyn, Philip L.; De Weireld, Guy; Hadjiivanov, Konstantin; Gascon, Jorge; Kapteijn, Freek; Maurin, Guillaume; Steunou, Nathalie; Serre, Christian

2017-01-01

A microporous Al trimesate-based metal-organic framework (MOF), denoted MIL-96-(Al), was selected as a porous hybrid filler for the processing of mixed matrix membranes (MMMs) for CO2/N-2 postcombustion separation. First, the structural model of MIL-96-(Al) initially reported was revisited using a combination of synchrotron-based single-crystal X-ray diffraction, solid-state nuclear magnetic resonance spectroscopy, and density functional theory (DFT) calculations. In a second step, pure MIL-96-(Al) crystals differing by their size and aspect ratio, including anisotropic hexagonal platelets and nanoparticles of about 70 nm in diameter, were prepared. Then, a combination of in situ IR spectroscopy, single-gas, and CO2/N-2 coadsorption experiments, calorimetry, and molecular simulations revealed that MIL-96-(Al) nanoparticles show a relatively high CO2 affinity over N-2 owing to strong interactions between CO2 molecules and several adsorption sites such as Al3+ Lewis centers, coordinated water, and hydroxyl groups. Finally, the high compatibility between MIL-96-(Al) nanoparticles and the 6FDA-DAM polymer allowed the processing of homogeneous and defect-free MMMs with a high MOF loading (up to 25 wt %) that outperform pure polymer membranes for CO2/N-2 separation.

Revisiting the Aluminum Trimesate-based MOF (MIL-96): from Structure Determination to the Processing of Mixed Matrix Membranes for CO2 Capture.

KAUST Repository

Benzaqui, Marvin

2017-11-08

A microporous Al trimesate-based metal-organic framework (MOF), denoted MIL-96-(Al), was selected as a porous hybrid filler for the processing of mixed matrix membranes (MMMs) for CO2/N-2 postcombustion separation. First, the structural model of MIL-96-(Al) initially reported was revisited using a combination of synchrotron-based single-crystal X-ray diffraction, solid-state nuclear magnetic resonance spectroscopy, and density functional theory (DFT) calculations. In a second step, pure MIL-96-(Al) crystals differing by their size and aspect ratio, including anisotropic hexagonal platelets and nanoparticles of about 70 nm in diameter, were prepared. Then, a combination of in situ IR spectroscopy, single-gas, and CO2/N-2 coadsorption experiments, calorimetry, and molecular simulations revealed that MIL-96-(Al) nanoparticles show a relatively high CO2 affinity over N-2 owing to strong interactions between CO2 molecules and several adsorption sites such as Al3+ Lewis centers, coordinated water, and hydroxyl groups. Finally, the high compatibility between MIL-96-(Al) nanoparticles and the 6FDA-DAM polymer allowed the processing of homogeneous and defect-free MMMs with a high MOF loading (up to 25 wt %) that outperform pure polymer membranes for CO2/N-2 separation.

Ratiometric Fluorescence Sensing and Real-Time Detection of Water in Organic Solvents with One-Pot Synthesis of Ru@MIL-101(Al)-NH2.

Science.gov (United States)

Yin, Hua-Qing; Yang, Ji-Chun; Yin, Xue-Bo

2017-12-19

Ratiometric fluorescence detection attracts much attention because of its decreased environmental influence and easy-to-differentiate color and intensity change. Herein, a guest-encapsulation metal-organic framework (MOF), Ru@MIL-NH 2 , is prepared with 2-aminoterephthalic acid, AlCl 3 , and Ru(bpy) 3 2+ by a simple one-pot method for ratiometric fluorescence sensing of water in organic solvents. The rational selection of the excitation wavelength provides dual emission at 465 and 615 nm from Ru@MIL-NH 2 under a single excitation of 300 nm. High sensitivity, low detection limit (0.02% v/v), wide response range (0-100%), and fast response (less than 1 min) are obtained for ratiometric fluorescence sensing of water under single excitation with Ru@MIL-NH 2 as the probe. Moreover, the result of water content is independent of the concentration of Ru@MIL-NH 2 as the merit of ratiometric fluorescence detection. The response mechanism reveals that the protonation of the nitrogen atom of the MIL-NH 2 , the π-conjugation system, and the stable fluorescence of Ru(bpy) 3 2+ achieve the ratiometric fluorescence. The analysis of real spirit samples confirms the proposed method. A test strip is prepared with Ru@MIL-NH 2 for convenient use. We believe that such turn-on ratiometric host-guest MOFs and the rational selection of excitation wavelength will offer guidance for ratiometric fluorescence detection with wide applications.

Dye-sensitized MIL-101 metal organic frameworks loaded with Ni/NiOx nanoparticles for efficient visible-light-driven hydrogen generation

Directory of Open Access Journals (Sweden)

Xin-Ling Liu

2015-10-01

Full Text Available The Ni/NiOx particles were in situ photodeposited on MIL-101 metal organic frameworks as catalysts for boosting H2 generation from Erythrosin B dye sensitization under visible-light irradiation. The highest H2 production rate of 125 μmol h−1 was achieved from the system containing 5 wt. % Ni-loaded MIL-101 (20 mg and 30 mg Erythrosin B dye. Moreover, the Ni/NiOx catalysts show excellent stability for long-term photocatalytic reaction. The enhancement on H2 generation is attributed to the efficient charge transfer from photoexcited dye to the Ni catalyst via MIL-101. Our results demonstrate that the economical Ni/NiOx particles are durable and active catalysts for photocatalytic H2 generation.

Pilk uuele "Põhjamaade romaani" sarjale / Hilve Rebane

Index Scriptorium Estoniae

Rebane, Hilve, 1938-2012

1999-01-01

Bengtson, Frans G. Orm Punane / tlk. Anu Saluäär. Tallinn : Eesti Raamat, 1997 ; Wassmo, Herbjırg. Dina raamat / tlk. Elvi Lumet. Tallinn : Eesti Raamat, 1997 ; Tunström, Göran. Varas / tlk. Ene Mäe. Tallinn : Eesti Raamat, 1999

MIL-STD-2411-1 Change 3. Notice Impacts to NAVAIR

Science.gov (United States)

2010-07-30

Macedonia ZX Macais Nguema Biyogo MA Madagascar VD Madeira Islands (PO) MI Malawi MY Malaysia MV Maldives ML Mali MT Malta IM Isle of Man (UK) MIL...and Niger) PON Pointe Noire 1948 (Congo) POS Porto Santo 1936 (Porto Santo, Madeira Islands) HIT Prov. S. Chilean (S. Chile, 53 S.) PRPM Prov. S...Asia (Southeast Asia, Singapore) POS SE Base (Porte Santo) (Porto Santo & Madeira Islands) GRA SW Base (Faial, Graciosa, Pico, Sao Jorge, and

Magnetic solid phase extraction of typical polycyclic aromatic hydrocarbons from environmental water samples with metal organic framework MIL-101 (Cr) modified zero valent iron nano-particles.

Science.gov (United States)

Zhou, Qingxiang; Lei, Man; Wu, Yalin; Yuan, Yongyong

2017-03-03

Metal-organic framework material has been paid more attention because of its good physical and chemical properties. Nanoscale zero valent iron is also in the center of concern recently. Combination of their merits will give impressive results. Present study firstly synthesized a new magnetic nanomaterial nano-scale zero valent iron-functionalized metal-organic framworks MIL-101 (Fe@MIL-101) by co-precipitation method. The morphology and structure of the as-prepared Fe@MIL-101 were characterized by transmission electron microscopy and X-ray diffraction, etc. The experimental results showed that Fe@MIL-101 earned good adsorption ability to polycyclic aromatic hydrocarbons. The limits of detection of developed magnetic solid phase extraction were all below 0.064μgL -1 and precision can be expressed as relative standard deviation (RSD, %) and which was better than 4.4% (n=6). The real water analysis indicated that the spiked recoveries were satisfied, and Fe@MIL-101 earned excellent reusability. All these demonstrated that Fe@MIL-101 exhibited excellent adsorption capability to polycyclic aromatic hydrocarbons and would be a good adsorbent for development of new monitoring methods for environmental pollutants. Copyright © 2017 Elsevier B.V. All rights reserved.

Mil doscientos títulos de antropología colombiana: primera parte

Directory of Open Access Journals (Sweden)

Manuel Lucena Salmoral

1969-08-01

Full Text Available La aparición de estos mil doscientos títulos sobre antropología Colombiana representa un esfuerzo juvenil de universitarios javerianos, pertenecientes a distintas ciencias sociales, quienes fueron confluyendo a mis clases de Antropología Cultural guiados por la misma problemática: la búsqueda del hombre.

Fabrication of core-shell Fe{sub 3}O{sub 4}@MIL-100(Fe) magnetic microspheres for the removal of Cr(VI) in aqueous solution

Energy Technology Data Exchange (ETDEWEB)

Yang, Qingxiang, E-mail: qxyangzz@163.com; Zhao, Qianqian; Ren, ShuangShuang; Lu, Qiongqiong; Guo, Xinmeng; Chen, Zhijun, E-mail: chenzj@zzuli.edu.cn

2016-12-15

Facile regeneration of an adsorbent is very important for commercial feasibility. One typical highly porous metal-organic framework (MOF) materials based on MIL-100(Fe) and magnetic iron oxide particles (denoted as MMCs) with diameter about of 350 nm were successfully synthesized. The growth of MIL-100(Fe) shell on the surface of Fe{sub 3}O{sub 4} was utilized precursor as crystal seed via in-situ step hydrothermal reaction. It is a simple way to obtain well organized core-shell MOF composites, compared to the step-by-step method. MMCs were firstly used to uptake of Cr(VI) anions in aqueous solution. Adsorption experiments were carried out in batch sorption mode investigating with the factors of contact time (0–1000 min), pH (from 2 to 12), dose of adsorbent (4–25 mg), and initial Cr(VI) concentration (range from 10 to 100 ppm). - Graphical abstract: One typical highly porous metal-organic framework (MOF) materials based on MIL-100(Fe) and magnetic iron oxide particles (denoted as MMCs) were successfully synthesized. Utilizing Fe{sub 3}O{sub 4} precursor as crystal seed to grow MIL-100(Fe) shell by in-situ step hydrothermal reaction. It is a simple way to obtain core-shell MOF composites. MMCs could effectively uptake of Cr(VI) anions in aqueous solution. - Highlights: • Fe{sub 3}O{sub 4}@MIL-100(Fe) composites with core-shell structure were successfully prepared through a simple method. • The influence factors on Cr(VI) adsorption by Fe{sub 3}O{sub 4}@MIL-100(Fe) were investigated. • Cr(VI) can efficiently adsorbed by Fe{sub 3}O{sub 4}@MIL-100(Fe) composites from aqueous solution.

A sensitive and selective sensor for biothiols based on the turn-on fluorescence of the Fe-MIL-88 metal-organic frameworks-hydrogen peroxide system.

Science.gov (United States)

Sun, Zheng Juan; Jiang, Jun Ze; Li, Yuan Fang

2015-12-21

Herein, we present a novel strategy based on a "turn-on" fluorescence system made up of metal-organic frameworks Fe-MIL-88 and H2O2 for detecting biothiols in human serum. The nonfluorescent Fe-MIL-88 gives weak fluorescence in the presence of H2O2. Interestingly, it was found that biothiols such as glutathione (GSH), cysteine (Cys) or homocysteine (Hcy) could induce fluorescence turn-on of the Fe-MIL-88/H2O2 system. Under optimal conditions, the relative fluorescence intensity exhibited a good linear relationship in the range from 50 nM-10 μM for GSH (r = 0.994), 50 nM-10 μM for Cys (r = 0.990), and 50 nM-10 μM (r = 0.992) for Hcy; the detection limits of GSH, Cys and Hcy were 30 nM, 40 nM, and 40 nM respectively. Mechanism investigation reveals that biothiols could associate with Fe-MIL-88 via hydrogen bonding and electrostatic interaction followed by redox reaction between biothiols and Fe(3+) present in the Fe-MIL-88, Fe(3+) was thus reduced to Fe(2+), and then Fe(2+) could efficiently catalyze the decomposition of H2O2 to yield ˙OH radicals through the Fenton reaction. Besides, biothiols were able to reduce H2O2 to produce ˙OH radicals directly. Thus the Fe-MIL-88 as well as biothiols could cooperatively contribute to the activation of H2O2 to generate higher amounts of ˙OH radicals, which in turn oxidize the free ligand terephthalic acid (BDC) outside or within the Fe-MIL-88 structure to strongly fluorescent hydroxylated terephthalic acid (OHBDC), thereby turning on the fluorescence.

Lammasinimene, liblikmees ja karunaine : maagilisest realismist eesti kirjanduse näitel / Andrus Org

Index Scriptorium Estoniae

Org, Andrus

2007-01-01

Maagilisest realismist kolme eesti romaani põhjal: Karl Rumori "Krutsifiks" (Tallinn : Eesti Raamat, 1989), Mehis Heinsaare "Härra Pauli kroonikad" (Tallinn : Perioodika, 2001), Nikolai Baturini triloogia "Karu süda" (Tallinn : Eesti Raamat, 1989), "Kartlik Nikas, lõvilakkade kammija" (Tallinn : Eesti Raamat, 1993), "Kentaur" (Tallinn : Eesti Raamat, 2003)

MIL-125-NH2@TiO2 Core-Shell Particles Produced by a Post-Solvothermal Route for High-Performance Photocatalytic H2 Production.

Science.gov (United States)

Zhang, Bingxing; Zhang, Jianling; Tan, Xiuniang; Shao, Dan; Shi, Jinbiao; Zheng, Lirong; Zhang, Jing; Yang, Guanying; Han, Buxing

2018-05-02

Metal-organic frameworks (MOFs) have proven to be an interesting class of sacrificial precursors of functional inorganic materials for catalysis, energy storage, and conversion applications. However, the controlled synthesis of MOF-derived materials with desirable compositions, structures, and properties still remains a big challenge. Herein, we propose a post-solvothermal route for the outer-to-inner loss of organic linkers from MOF, which is simple, rapid, and controllable and can be operated at temperature much lower than that of the commonly adopted pyrolysis method. By such a strategy, the MIL-125-NH 2 particles coated by TiO 2 nanosheets were produced, and the thickness of TiO 2 shell can be easily tuned. The MIL-125-NH 2 @TiO 2 core-shell particles combine the advantages of highly active TiO 2 nanosheets, MIL-125-NH 2 photosensitizer, plenty of linker defects and oxygen vacancies, and mesoporous structure, which allows them to be utilized as photocatalysts for the visible-light-driven hydrogen production reaction. It is remarkable that the hydrogen evolution rate by MIL-125-NH 2 @TiO 2 can be enhanced 70 times compared with the pristine MIL-125-NH 2 . Such a route can be easily applied to the synthesis of different kinds of MOF-derived functional materials.

MIL-STD-1553B Marconi LSI chip set in a remote terminal application

Science.gov (United States)

Dimarino, A.

1982-11-01

Marconi Avionics is utilizing the MIL-STD-1553B LSI Chip Set in the SCADC Air Data Computer application to perform all of the required remote terminal MIL-STD-1553B protocol functions. Basic components of the RTU are the dual redundant chip set, CT3231 Transceivers, 256 x 16 RAM and a Z8002 microprocessor. Basic transfers are to/from the RAM command of the bus controller or Z8002 processor. During transfers from the processor to the RAM, the chip set busy bit is set for a period not exceeding 250 microseconds. When the transfer is complete, the busy bit is released and transfers to the data bus occur on command. The LSI Chip Set word count lines are used to locate each data word in the local memory and 4 mode codes are used in the application: reset remote terminal, transmit status word, transmitter shut-down, and override transmitter shutdown.

Synthesis and sonocatalytic performance of a ternary magnetic MIL-101(Cr)/RGO/ZnFe2O4 nanocomposite for degradation of dye pollutants.

Science.gov (United States)

Nirumand, Ladan; Farhadi, Saeed; Zabardasti, Abedin; Khataee, Alireza

2018-04-01

In this study, new ternary magnetic MIL-101(Cr)/RGO/ZnFe 2 O 4 catalyst (with 30% wt of ZnFe 2 O 4 ) was synthesized via a hydrothermal route for sonodegradation of organic dyes. The structural, optical and magnetic properties of the nanocomposite were detected by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-visible spectroscopy (UV-visible), field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) spectroscopy, vibrating sample magnetometer (VSM), atomic force microscopy (AFM), Raman spectroscopy and BET surface area analysis. To evaluate the sonocatalytic activity of the as-prepared MIL-101(Cr)/RGO/ZnFe 2 O 4 nanocomposite, the H 2 O 2 -assisted degradation of organic dyes such as congo red (CR), methylene blue (MB), Rhodamine B (RhB) and methyl orange (MO) in aqueous solution was studied under ultrasound irradiation. The obtained results indicated that the ternary MIL-101(Cr)/RGO/ZnFe 2 O 4 nanocomposite had better performance for sonodegradation of these dyes than MIL-101(Cr)/RGO, pure MIL-101(Cr) or ZnFe 2 O 4 . The enhanced sonocatalytic performance of the as-prepared ternary nanocomposite could be attributed to the fast generation and separation of charge carriers (electrons and holes) in ZnFe 2 O 4 and MIL-101(Cr) and their transfer to the surface of graphene sheets. Moreover, the relatively high specific surface area of the MIL-101(Cr)/rGO and magnetic property of ZnFe 2 O 4 improve the degradation efficiency of the dyes. The recovery of the ternary magnetic sonocatalyst from treated water could be easily achieved using an external magnetic field. The main influence factors on the sonocatalytic activity such as catalyst dosage and dye initial concentration were also investigated. The trapping experiments indicated that OH radicals are the prominent active species in dye degradation. In addition, the reusability test, was also carried out to ensure the stability of the employed sonocatalyst

Effects of ductile phase volume fraction on the mechanical properties of Ti-Al3Ti metal-intermetallic laminate (MIL) composites

International Nuclear Information System (INIS)

Price, Richard D.; Jiang Fengchun; Kulin, Robb M.; Vecchio, Kenneth S.

2011-01-01

Research highlights: → Residual Al improves the mechanical properties of Ti-Al 3 Ti MIL composites. → Residual Al can eliminate intermetallic centerline delaminations in MILs. → Low levels of residual Al increase fracture toughness in MIL composites. → MIL stiffness, strength, and fracture toughness can be optimized at low Al levels. - Abstract: Metal-intermetallic laminate (MIL) composites consisting of alternating layers of Ti, Al, and the intermetallic Al 3 Ti have been fabricated by reactive foil sintering in open air. Six initially identical stacks of alternating Ti-3Al-2.5 V and 1100-Al foils were processed for different lengths of time, yielding specimens with different metal and intermetallic volume fractions. Their mechanical properties have been investigated with an emphasis on the effect of residual Al at the intermetallic centerline on composite strength and fracture toughness, as well as fracture and failure modes. Samples were cut from each composite plate (in layer orientations parallel and perpendicular to the intended load direction) for mechanical testing in compression and four-point bending under quasi-static and high-rate loading conditions. Examination of the damaged specimens and their fracture surfaces by optical and scanning electron microscopy was performed to establish a correlation between the failure mechanisms present, composite strength, and microstructure. Results indicated that regardless of loading direction, cracks always initiated in the intermetallic region, rarely at the centerline, and crack propagation and failure were heavily influenced by the thickness of the residual aluminum layers. There is an ideal residual aluminum volume fraction that represents the amount of ductile reinforcement that maximizes the combined properties of strength, toughness and stiffness.

Raamatuid / Juhan Habicht

Index Scriptorium Estoniae

Habicht, Juhan, 1954-

1991-01-01

Tutvustused: Kivisildnik, Sven. Dawa vita. Tallinn : Eesti Raamat, [1991]. Uustulnd, Albert. Acheroni kaldal. Tallinn : Eesti Raamat, 1991. Kivikas, Albert. Nimed marmortahvlil. Tallinn : Eesti Raamat, 1991

Separation properties of the MIL-125(Ti) Metal-Organic Framework in high-performance liquid chromatography revealing cis/trans selectivity.

Science.gov (United States)

Van der Perre, Stijn; Liekens, Anuschka; Bueken, Bart; De Vos, Dirk E; Baron, Gino V; Denayer, Joeri F M

2016-10-21

Monodisperse MIL-125(Ti) Metal-Organic Framework crystals were synthesized and studied as stationary phase in high performance liquid chromatography (HPLC). Different pure compounds and model mixtures (including stereoisomer mixtures) were injected from which chromatographic parameters, including selectivities and resolution factors, were determined to evaluate the adsorption properties and separation performance of MIL-125(Ti) in liquid phase. The MIL-125(Ti) framework displayed a trans selectivity for cis/trans difunctionalized cyclohexane molecules with high selectivity and resolution for 1,3-dimethylcyclohexane and 4-ethylcyclohexanol. The slurry-packed column was further characterized via van Deemter analysis. Fitting of the van Deemter equation through the experimental points allowed to define the contributions of the different processes to plate height with a significant proportion of the A-term, reflecting the importance of a good crystal packing. Although high in comparison to commercial HPLC stationary phases, a very good plate height of around 50μm was found. Copyright © 2016 Elsevier B.V. All rights reserved.

Raamatud / Juhan Habicht

Index Scriptorium Estoniae

Habicht, Juhan, 1954-

1991-01-01

Raamatutvustused: Beier, Priidu. Mustil päevil. Tallinn : Eesti Raamat, [1991]. Ristikivi, Karl. Inimese teekond : luuletusi. Tallinn : Eesti Raamat, 1991. Erich, Artur. Äike. Tallinn : Eesti Raamat, [1991

SEDS MIL-STD-1773 fiber optic data bus: Proton irradiation test results and spaceflight SEU data

Energy Technology Data Exchange (ETDEWEB)

LaBel, K.A.; Stassinopoulos, E.G.; Miller, J.T. (NASA/GSFC, Greenbelt, MD (United States)); Marshall, P. (NRL/SFA, Washington, DC (United States)); Dale, C. (NRL, Washington, DC (United States)); Crabtree, C.M. (Hughes/ST Systems Corp., Seabrook, MD (United States)); Gates, M.M. (Jackson and Tull, Seabrook, MD (United States))

1993-12-01

The Small Explorer Data System (SEDS) was launched in July of 1992 as part of the Solar Anomalous Magnetospheric Particle Explorer (SAMPEX) mission. The SEDS utilizes NASA's first MIL-STD-1773 Fiber Optic Multiplexed Data Bus (or 1773 bus) to communicate with other spacecraft subsystems in the space environment. The 1773 bus is the fiber optic version of the MIL-STD-1553 Data Bus, a electronic wire bus used in many avionics applications. The authors present proton test and space flight single event effect data for NASA's first fiber optic data bus. Bit error rate predictions based on a new proton direct ionization model agree well with flight data for proton belt and solar flare effects.

Enhanced catalytic activity over MIL-100(Fe) loaded ceria catalysts for the selective catalytic reduction of NOx with NH₃ at low temperature.

Science.gov (United States)

Wang, Peng; Sun, Hong; Quan, Xie; Chen, Shuo

2016-01-15

The development of catalysts for selective catalytic reduction (SCR) reactions that are highly active at low temperatures and show good resistance to SO2 and H2O is still a challenge. In this study, we have designed and developed a high-performance SCR catalyst based on nano-sized ceria encapsulated inside the pores of MIL-100(Fe) that combines excellent catalytic power with a metal organic framework architecture synthesized by the impregnation method (IM). Transmission electron microscopy (TEM) revealed the encapsulation of ceria in the cavities of MIL-100(Fe). The prepared IM-CeO2/MIL-100(Fe) catalyst shows improved catalytic activity both at low temperatures and throughout a wide temperature window. The temperature window for 90% NOx conversion ranges from 196 to 300°C. X-ray photoelectron spectroscopy (XPS) and in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) analysis indicated that the nano-sized ceria encapsulated inside MIL-100(Fe) promotes the production of chemisorbed oxygen on the catalyst surface, which greatly enhances the formation of the NO2 species responsible for fast SCR reactions. Copyright © 2015 Elsevier B.V. All rights reserved.

A Preliminary Report on the Strength and Metallography of a Bimetallic Friction Stir Weld Joint Between AA6061 and MIL-DTL-46100E High Hardness Steel Armor

Science.gov (United States)

2012-11-26

bimetallic friction stir weld joint between AA6061 and MIL-DTL-46100E High Hardness steel armor. ABSTRACT One half inch thick plates of 6061-T6 aluminum...alloy and High Hardness steel armor (MIL- STD-46100) were successfully joined by the friction stir welding (FSW) process using a tungsten-rhenium...4. TITLE AND SUBTITLE A preliminary report on the strength and metallography of a bimetallic friction stir weld joint between AA6061 and MIL-DTL

Self and transport diffusivity of CO2 in the metal-organic framework MIL-47(V) explored by quasi-elastic neutron scattering experiments and molecular dynamics simulations.

Science.gov (United States)

Salles, Fabrice; Jobic, Hervé; Devic, Thomas; Llewellyn, Philip L; Serre, Christian; Férey, Gérard; Maurin, Guillaume

2010-01-26

Quasi-elastic neutron scattering measurements are combined with molecular dynamics simulations to determine the self-diffusivity, corrected diffusivity, and transport diffusivity of CO(2) in the metal-organic framework MIL-47(V) (MIL = Materials Institut Lavoisier) over a wide range of loading. The force field used for describing the host/guest interactions is first validated on the thermodynamics of the MIL-47(V)/CO(2) system, prior to being transferred to the investigations of the dynamics. A decreasing profile is then deduced for D(s) and D(o) whereas D(t) presents a non monotonous evolution with a slight decrease at low loading followed by a sharp increase at higher loading. Such decrease of D(t) which has never been evidenced in any microporous systems comes from the atypical evolution of the thermodynamic correction factor that reaches values below 1 at low loading. This implies that, due to intermolecular interactions, the CO(2) molecules in MIL-47(V) do not behave like an ideal gas. Further, molecular simulations enabled us to elucidate unambiguously a 3D diffusion mechanism within the pores of MIL-47(V).

Intermodal Storage and Transport Frame (ISTF) MIL-STD-1660 Design Criteria for Ammunition Unit Loads Tests

National Research Council Canada - National Science Library

Barickman, Philip

2004-01-01

.... The ISTF was evaluated by the testing procedures set forth in MIL-STD-1660. Stacking, vibration, edgewise rotational drop, incline impact, sling compatibility, forklifting, and disassembly testing were conducted on the ISTF units...

Eu(III)-functionalized MIL-124 as fluorescent probe for highly selectively sensing ions and organic small molecules especially for Fe(III) and Fe(II).

Science.gov (United States)

Xu, Xiao-Yu; Yan, Bing

2015-01-14

A layerlike MOF (MIL-124, orGa2(OH)4(C9O6H4)) has been prepared and chosen as a parent compound to encapsulate Eu(3+) cations by one uncoordinated carbonyl group in its pores. The Eu(3+)-incorporated sample (Eu(3+)@MIL-124) is fully characterized, which shows excellent luminescence and good fluorescence stability in water or other organic solvents. Subsequently, we choose Eu(3+)@MIL-124 as sensitive probe for sensing metal ions, anions, and organic small molecules because of its robust framework. Studying of the luminescence properties reveals that the complex Eu(3+)@MIL-124 was developed as a highly selective and sensitive probe for detection of Fe(3+) (detection limit, 0.28 μM) and Fe(2+) ions through fluorescence quenching of Eu(3+) and MOF over other metal ions. In connection to this, a probable sensing mechanism was also discussed in this paper. In addition, when Eu(3+)@MIL-124 was immersed in the different anions solutions and organic solvents, it also shows highly selective for Cr2O7(2-)(detection limit, 0.15 μM)and acetone. Remarkably, it is the first Eu-doped MOF to exhibit an excellent ability for the detection of Fe(3+) and Fe(2+) in an aqueous environment without any structural disintegration of the framework.

Dye-sensitized MIL-101 metal organic frameworks loaded with Ni/NiO{sub x} nanoparticles for efficient visible-light-driven hydrogen generation

Energy Technology Data Exchange (ETDEWEB)

Liu, Xin-Ling; Wang, Rong; Yuan, Yu-Peng, E-mail: yupengyuan@ahu.edu.cn, E-mail: cxue@ntu.edu.sg [School of Chemistry and Chemical Engineering, and Innovation Lab for Clean Energy and Green Catalysis, Anhui University, Hefei 230036 (China); Zhang, Ming-Yi [Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025 (China); Xue, Can, E-mail: yupengyuan@ahu.edu.cn, E-mail: cxue@ntu.edu.sg [Solar Fuels Lab, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)

2015-10-01

The Ni/NiO{sub x} particles were in situ photodeposited on MIL-101 metal organic frameworks as catalysts for boosting H{sub 2} generation from Erythrosin B dye sensitization under visible-light irradiation. The highest H{sub 2} production rate of 125 μmol h{sup −1} was achieved from the system containing 5 wt. % Ni-loaded MIL-101 (20 mg) and 30 mg Erythrosin B dye. Moreover, the Ni/NiO{sub x} catalysts show excellent stability for long-term photocatalytic reaction. The enhancement on H{sub 2} generation is attributed to the efficient charge transfer from photoexcited dye to the Ni catalyst via MIL-101. Our results demonstrate that the economical Ni/NiO{sub x} particles are durable and active catalysts for photocatalytic H{sub 2} generation.

Fe-MIL-101 exhibits selective cytotoxicity and inhibition of angiogenesis in ovarian cancer cells via downregulation of MMP.

Science.gov (United States)

Wang, Jiaqiang; Chen, Daomei; Li, Bin; He, Jiao; Duan, Deliang; Shao, Dandan; Nie, Minfang

2016-05-18

Though metal-organic frameworks (MOFs) have inspired potential applications in biomedicine, cytotoxicity studies of MOFs have been relatively rare. Here we demonstrate for the first time that an easily available MOF, Fe-MIL-101, possesses intrinsic activity against human SKOV3 ovarian cancer cells and suppress the proliferation of SKOV3 cells (IC50 = 23.6 μg mL(-1)) and normal mouse embryonic fibroblasts (BABL-3T3, IC50 = 78.3 μg mL(-1)) cells. It was more effective against SKOV3 cells than typical anticancer drugs such as artesunate (ART, IC50 = 96.9 μg mL(-1)) and oxaliplatin (OXA, IC50 = 64.4 μg mL(-1)), but had less effect on normal BABL-3T3 cells compared with ART (IC50 = 36.6 μg mL(-1)) and OXA (IC50 = 13.8 μg mL(-1)). Fe-MIL-101 induced apoptosis of human umbilical vein endothelial cells (HUVECs) via G0/G1 cell cycle arrest and decreased the mitochondrial membrane potential in HUVECs and induced apoptosis. Furthermore, Fe-MIL-101 exhibited stronger antiangiogenic effects in HUVEC cells than antiangiogenic inhibitor (SU5416) via downregulation the expression of MMP-2/9. Our results reveal a new role of Fe-MIL-101 as a novel, non-toxic anti-angiogenic agent that restricted ovarian tumour growth. These findings could open a new avenue of using MOFs as potential therapeutics in angiogenesis-dependent diseases, including ovarian cancer.

Synthesis and structure determination of new open-framework chromium carboxylate MIL-105 or CrIII(OH).{O2C-C6(CH3)4-CO2}.nH2O

International Nuclear Information System (INIS)

Serre, Christian; Millange, Franck; Devic, Thomas; Audebrand, Nathalie; Van Beek, Wouter

2006-01-01

Two new three-dimensional chromium(III) dicarboxylate, MIL-105 or Cr III (OH).{O 2 C-C 6 (CH 3 ) 4 -CO 2 }.nH 2 O, have been obtained under hydrothermal conditions, and their structures solved using X-ray powder diffraction data. Both solids are structural analogs of the known Cr benzenedicarboxylate compound (MIL-53). Both contain trans corner-sharing CrO 4 (OH) 2 octahedral chains connected by tetramethylterephthalate di-anions. Each chain is linked by the ligands to four other chains to form a three-dimensional framework with an array of 1D pores channels. The pores of the high temperature form of the solid, MIL-105ht, are empty. However, MIL-105ht re-hydrates at room temperature to finally give MIL-105lt with pores channels filled with free water molecules (lt: low temperature form; ht: high temperature form). The thermal behaviour of the two solids has been investigated using TGA. Crystal data for MIL-105ht: monoclinic space group C2/c with a = 19.653(1) A, b = 9.984(1) A, c = 6.970(1) A, β = 110.67(1) o and Z = 4. Crystal data for MIL-105lt: orthorhombic space group Pnam with a = 17.892(1) A, b = 11.165(1) A, c = 6.916(1) A and Z = 4

Purification of Contaminated MIL-PRF-83282 Hydraulic Fluid Using the Pall Purifier and Multiple Process Configurations (Preprint)

National Research Council Canada - National Science Library

Snyder, Jr., Carl E; Gschwender, Lois J; Gunderson, Stephen L; Fultz, George W

2006-01-01

.... This report describes a project that evaluated the effectiveness of various hydraulic fluid purification process configurations on the removal of water and particulate contaminants from MIL-PRF-83282...

Urea-modified metal-organic framework of type MIL-101(Cr) for the preconcentration of phosphorylated peptides

International Nuclear Information System (INIS)

Yang, Xiaoqing; Xia, Yan

2016-01-01

Mass spectrometry (MS) is the most powerful tool in phosphoproteomics research. However, phosphopeptides usually are present in low concentrations and their preconcentration therefore is highly desired. We describe a two-step method for the synthesis of a metal organic framework of the type MIL-101(Cr) that is modified with urea (then designated as MIL-101(Cr)-UR 2 ). It possesses large surface area, good solvent stability and high affinity for some phosphates. Due to the presence of modified urea functions, this material allows for selective and effective enrichment of phosphorylated peptides. It was successfully applied to the enrichment of phosphopeptides from non-fat-milk. The method was applied to the detection of phosphopeptides in a tryptic digest of β-casein where is showed a detection sensitivity as low as 10 −10 M. (author)

MIL-100 derived nitrogen-embodied carbon shells embedded with iron nanoparticles

Science.gov (United States)

Mao, Chengyu; Kong, Aiguo; Wang, Yuan; Bu, Xianhui; Feng, Pingyun

2015-06-01

The use of metal-organic frameworks (MOFs) as templates and precursors to synthesize new carbon materials with controllable morphology and pre-selected heteroatom doping holds promise for applications as efficient non-precious metal catalysts. Here, we report a facile pyrolysis pathway to convert MIL-100 into nitrogen-doped carbon shells encapsulating Fe nanoparticles in a comparative study involving multiple selected nitrogen sources. The hierarchical porous architecture, embedded Fe nanoparticles, and nitrogen decoration endow this composite with a superior oxygen reduction activity. Furthermore, the excellent durability and high methanol tolerance even outperform the commercial Pt-C catalyst.The use of metal-organic frameworks (MOFs) as templates and precursors to synthesize new carbon materials with controllable morphology and pre-selected heteroatom doping holds promise for applications as efficient non-precious metal catalysts. Here, we report a facile pyrolysis pathway to convert MIL-100 into nitrogen-doped carbon shells encapsulating Fe nanoparticles in a comparative study involving multiple selected nitrogen sources. The hierarchical porous architecture, embedded Fe nanoparticles, and nitrogen decoration endow this composite with a superior oxygen reduction activity. Furthermore, the excellent durability and high methanol tolerance even outperform the commercial Pt-C catalyst. Electronic supplementary information (ESI) available: Material synthesis and elemental analysis, electrochemistry measurements, and additional figures. See DOI: 10.1039/c5nr02346g

Thin Film Nanocomposite Membrane Filled with Metal-Organic Frameworks UiO-66 and MIL-125 Nanoparticles for Water Desalination

Directory of Open Access Journals (Sweden)

Mohammed Kadhom

2017-06-01

Full Text Available Knowing that the world is facing a shortage of fresh water, desalination, in its different forms including reverse osmosis, represents a practical approach to produce potable water from a saline source. In this report, two kinds of Metal-Organic Frameworks (MOFs nanoparticles (NPs, UiO-66 (~100 nm and MIL-125 (~100 nm, were embedded separately into thin-film composite membranes in different weight ratios, 0%, 0.05%, 0.1%, 0.15%, 0.2%, and 0.3%. The membranes were synthesized by the interfacial polymerization (IP of m-phenylenediamine (MPD in aqueous solution and trimesoyl chloride (TMC in an organic phase. The as-prepared membranes were characterized by scanning electron microscopy (SEM, transmission electron microscopy (TEM, contact angle measurement, attenuated total reflection Fourier transform infrared (ATR FT-IR spectroscopy, and salt rejection and water flux assessments. Results showed that both UiO-66 and MIL-125 could improve the membranes’ performance and the impacts depended on the NPs loading. At the optimum NPs loadings, 0.15% for UiO-66 and 0.3% for MIL-125, the water flux increased from 62.5 L/m2 h to 74.9 and 85.0 L/m2 h, respectively. NaCl rejection was not significantly affected (UiO-66 or slightly improved (MIL-125 by embedding these NPs, always at >98.5% as tested at 2000 ppm salt concentration and 300 psi transmembrane pressure. The results from this study demonstrate that it is promising to apply MOFs NPs to enhance the TFC membrane performance for desalination.

A Mixed Matrix Membrane of Poly (4-methyl-1-pentyne Filled with MIL 53 Particles and Its Application in Carbon Dioxide and Nitrogen Separation

Directory of Open Access Journals (Sweden)

Reza Abedini

2016-05-01

Full Text Available The performance of poly (4-metyl-1-pentyne as mixed matrix membrane (MMM mixed with MIL 53 particles was studied to separate mixtures of carbon dioxide and nitrogen. MIL 53 particles was added to the polymer matrix with 10, 20 and 30 weight percentages. The adsorption of CO2 and N2 gases by MIL 53 was evaluated and the adsorption data was analyzed by Langmuir equation. Structure and thermal/mechanical properties of prepared membranes were characterized by means of FTIR, SEM, TGA and elongation test. Moreover, the gas permeation properties of membranes were studied by measuring the permeation of pure CO2 and N2. Furthermore, for accurate understanding of the gas permeation properties of the membranes, diffusion and solution coefficient of gases in neat membrane and MMMs were calculated using modified time-lag method. The results from TGA analysis showed that the degradation temperature of MMMs was enhanced and increased to 348ºC for membrane containing 30 wt% of MIL 53. The SEM images also illustrated a relatively uniform dispersion of particles with proper polymer/filler interfaces in the polymer matrix. The gas permeation results revealed that the permeability of both gases (especially CO2 increased with increasing MIL 53 loading, in which the permeability of CO2 increased from 98.74 Barrer in neat membrane to 217.65 Barrer in MMM containing 30 wt% filler. Moreover, calculation of CO2/N2 selectivity depicted that the selectivity enhanced from 16.66 to 22.70. Finally, the performance of MMMs was compared with Robeson’s upper bound in CO2/N2 separation and results showed that the MMM having 30 wt% of MIL 53 took over the Robeson bound.

Adsorption of 1,2-dichlorobenzene and 1,2,4-trichlorobenzene in nano- and microsized crystals of MIL-101(Cr): static and dynamic gravimetric studies.

Science.gov (United States)

Bullot, Laetitia; Vieira-Sellaï, Ludivine; Chaplais, Gérald; Simon-Masseron, Angélique; Daou, Toufic Jean; Patarin, Joël; Fiani, Emmanuel

2017-12-01

This work aims to highlight the promising adsorption capacity and kinetic of (poly)chlorobenzene pollutants in the hybrid MIL-101(Cr) type material for technological uses in industrial waste exhaust decontamination. The influence of the MIL-101(Cr) crystal size (nano- and microcrystals) on the adsorption behavior was studied in static and dynamic modes. For this purpose, crystals of MIL-101(Cr) in nano- and micrometric sizes were synthesized and fully characterized. Their sorption properties regarding 1,2-dichlorobenzene were examined using gravimetric method in dynamic (p/p° = 0.5) and static (p/p° = 1) modes at room temperature. 1,2,4-trichlorobenzene adsorption was only performed under static mode because of its too low vapor pressure. 1,2-dichlorobenzene and 1,2,4-trichlorobenzene were used to mimic 2,3-dichlorodibenzo-p-dioxin and 1,2,3,4-tetrachlorodibenzo-p-dioxin, respectively, and more largely dioxin compounds. Adsorptions of these probes were successfully carried out in nano- and microcrystals of MIL-101(Cr). Indeed, in static mode (p/p° = 1) and at room temperature, nanocrystals adsorb 2266 molecules of 1,2-dichlorobenzene and 2093 molecules of 1,2,4-trichlorobenzene per unit cell, whereas microcrystals adsorb 1871 molecules of 1,2-dichlorobenzene and 1631 molecules of 1,2,4-trichlorobenzene per unit cell. In dynamic mode, the 1,2-dichlorobenzene adsorbed amounts are substantially similar to those obtained in static mode. However, the adsorption kinetics are different because of a different scheme of diffusivity of the adsorbate between the two modes. To the best of our knowledge, these adsorption capacities of MIL-101(Cr) as adsorbent for polychlorobenzenes trapping have never been referenced. MIL-101(Cr) appears as a promising material for technological uses in industrial waste exhaust decontamination.

The Onset and Duration of Action of 0.2% Lidocaine in a One-per-Mil Tumescent Solution for Hand Surgery.

Science.gov (United States)

Prasetyono, Theddeus O H; Lestari, Puri A

2016-05-01

One-per-mil tumescent solution, which contains 0.2% lidocaine with 1:1,000,000 epinephrine, has been reported to be clinically effective for hand surgery under local anesthesia. However, it was lacking in its basic pharmacokinetics profile in regard to the onset of action (OOA) and duration of action (DOA). A randomized, double-blind study was conducted on 12 volunteers who met the inclusion criteria from October to November 2014. All volunteers had their right and left ring finger pulps injected with either one-per-mil solution or 2% lidocaine. Semmes-Weinstein and two-point discrimination tests were used to test sensation. Visual analogue scale was recorded at the time when the finger lost its sensation and when it regained normal sensation to measure the OOA and DOA. The data were then analyzed with a paired t-test and a Wilcoxon signed-rank test. The OOA and DOA of 2% plain lidocaine were 1 minute and 99.67 minutes, respectively. Meanwhile, 0.2% lidocaine in a one-per-mil tumescent solution showed an OOA of 5 minutes and a DOA of 186.83 minutes. The OOA of 0.2% lidocaine in a one-per-mil tumescent solution is statistically shorter than 2% plain lidocaine (P=0.04); while its DOA is statistically longer than 2% plain lidocaine (Pmil tumescent solution is statistically and clinically superior to 2% plain lidocaine in achieving longer duration of local anesthesia.

Una imatge val per mil paraules

Directory of Open Access Journals (Sweden)

Jaume Cabré

1999-11-01

Full Text Available Una vegada hi havia un videoclub ple de pel·lícules i a l'entrada hi havia un rètol lluminós molt bonic que deia el lema d'aquesta casa, que és una imatge val per mil paraules. I vet aquí un dia que la clientela ja se n'havia anat, però encara no havien tancat els llums, van entrar al videoclub dues rates, l'Amàlia i l'Amèlia. I van dir: "Què fem avui?" Aleshores l'Amèlia se'n va anar de seguida cap al racó de la sèrie B i va agafar una pel·lícula poc coneguda, mentre que l'Amàlia va agafar Mort a Venècia. Llavors la va començar a rosegar i l'Amèlia li va dir: "Què, què te'n sembla?", i l'Amàlia li va contestar: "Mmm... Em va agradar més la novel·la."

Nesseri kuri maailm / Peeter Künstler

Index Scriptorium Estoniae

Künstler, Peeter, 1958-2009

1996-01-01

Arvustus: Nesser, Hõkan. Borkmanni punkt / Tlk. Vladimir Beekman. Tln. : Eesti Raamat, 1996; Nesser, Hõkan. Jämeda silmaga võrk / Tlk. Vladimir Beekman. Tln. : Eesti Raamat, 1996; Nesser, Hõkan. Tagasitulek / Tlk. Vladimir Beekman. Tln. : Eesti Raamat, 1996

MIL-HDBK-338-Environmental Conversion Table Correction

Science.gov (United States)

Hark, Frank; Novack, Steve

2017-01-01

In reliability analysis for space launch vehicles, limited data is frequently a challenge due to the pure number of launches. A common solution is to use surrogate historical data of similar components from other industries (military data). The operating environment of the common data may be different from that of the necessary target analysis. The military electronic design handbook (MIL-HDBK-338) has a table for converting Mean Time Between Failure (MTBF) data from one environment to another. However, the table has some discrepancies and rounding of complementary conversions; namely going from environment A to B does not given the same result as going from B to A. This presentation will show the discrepancies in the original conversation table, the greater than expected magnitude, the problem with the updated published table and a suggested corrected table to reference when doing MTBF data environment conversion.

Aino Kalda päevikud : Valgus ja varjud ; Valguse ja varju segu ; Hingesillad ; Rikas, kuhjaga täis / Hilve Rebane

Index Scriptorium Estoniae

Rebane, Hilve, 1938-2012

2003-01-01

Arvustus: Kallas, Aino. Pärjapunuja. Päevaraamat aastaist 1897-1900. Tallinn : Eesti Raamat, 1994 ; Kallas, Aino. Jäätunud šampanja. Päevaraamat aastaist 1907-1915. Tallinn : Eesti Raamat, 1994 ; Kallas, Aino. Hingesild. Päevikulehti aastaist 1916-1921. Tallinn : Eesti Raamat, 1993 ; Kallas, Aino. Suurlinnade udus ja säras. Päevaraamat aastaist 1922-1926. Tallinn : Eesti Raamat, 1996 ; Kallas, Aino. Pööripäevad. Päevaraamat aastaist 1927-1931

Facile synthesis of highly efficient amorphous Mn-MIL-100 catalysts: The formation mechanism and the structure changes during the application for CO oxidation.

Science.gov (United States)

Zhang, Xiaodong; Li, Hongxin; Lv, Xutian; Xu, Jingcheng; Wang, Yuxin; He, Chi; Liu, Ning; Yang, Yiqiong; Wang, Yin

2018-04-13

A comprehensive study was carried out on amorphous metal-organic frameworks Mn-MIL-100 as efficient catalysts towards CO oxidation. This study focuses on explaining the crystalline-amorphous-crystalline transformations during thermolysis process of Mn-MIL-100 and studying the structure changes during the reaction process for CO oxidation. A possible formation mechanism of amorphous Mn-MIL-100 was proposed. Amorphous Mn-MIL-100 obtained by calcination at 250°C (a-Mn-250) showed a smaller specific surface area (4 m2/g), but displayed a high catalytic activity. Furthermore, the structure of amorphous Mn-MIL-100 was labile during the reaction process. When used a-Mn-250 were treated with reaction atmosphere at high temperature (named used a-Mn-250-S), the amorphous catalysts transformed to Mn2O3. Meanwhile, BET surface area (164 m2/g) and the catalytic performance both sharply increased. In addition, used a-Mn-250-S catalyst transformed from Mn2O3 to Mn3O4, resulting in the slightly decrease of catalytic activity under the presence of 1 vol% water vapor in the stream. A schematic of the structure changes during the reaction process was proposed. The achievement of our synthesis relies on the increase of BET surface area using CO as retreatment atmosphere, and the enhanced catalytic activity was attributed to the unique structure, a high quantity of surface active oxygen species, oxygen vacancies and good low temperature reduction behavior. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Fabrication of core-shell MIL-101(Cr)@UiO-66(Zr) nanocrystals for hydrogen storage

CSIR Research Space (South Africa)

Ren, Jianwei

2014-09-01

Full Text Available of the individual metal-organic framework (MOF) components and the coreeshell hybrid crystals were also characterized. The hydrogen storage capacity exhibited by the resulting core eshell nanocrystals was 26% and 60% higher than those of pure phase MIL-101 and Ui...

An amino-functionalized magnetic framework composite of type Fe3O4-NH2@MIL-101(Cr) for extraction of pyrethroids coupled with GC-ECD.

Science.gov (United States)

He, Xi; Yang, Wei; Li, Sijia; Liu, Yu; Hu, Baichun; Wang, Ting; Hou, Xiaohong

2018-01-24

An amino-functionalized magnetic framework composite of type Fe 3 O 4 -NH 2 @MIL-101(Cr) was synthesized using a solvothermal method. The material was characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, nitrogen adsorption, and magnetometry. The composite combines the advantages of amino-modified Fe 3 O 4 and MIL-101(Cr). The presence of amino groups facilitates the fairly specific adsorption of pyrethroids. The composite was employed as a sorbent for magnetic solid phase extraction of five pyrethroids from environmental water samples. Following desorption with acidified acetone, the pyrethroids were quantified by gas chromatography with electron capture detection. The detection limits for bifenthrin, fenpropathrin, λ-cyhalothrin, permethrin, and deltamethrin range from 5 to 9 pg·mL -1 . The method is rapid, accurate, and highly sensitive. The molecular interactions and free binding energies between MIL-101(Cr) and the five pyrethroids were calculated by means of molecular docking. Graphical abstract A novel functionalized magnetic framework composite of type Fe 3 O 4 -NH 2 @MIL-101(Cr) was synthesized. It was applied as a sorbent for magnetic solid phase extraction of pyrethroids prior to their quantitation by gas chromatography with electron capture detection. The molecular interactions of analytes and MIL-101(Cr) were studied.

Diagnostic des systèmes de culture à base de mil [ Pennisetum ...

African Journals Online (AJOL)

Objectif : Le présent travail a pour objectif, de faire un état des lieux des systèmes de production à base de mil en Côte d'Ivoire septentrionale afin de proposer de nouvelles pistes d'amélioration. Méthodologie et résultats : L'approche méthodologique s'est reposée sur une enquête auprès des paysans sur le terrain dans ...

Chelating agent-free, vapor-assisted crystallization method to synthesize hierarchical microporous/mesoporous MIL-125 (Ti).

Science.gov (United States)

McNamara, Nicholas D; Hicks, Jason C

2015-03-11

Titanium-based microporous heterogeneous catalysts are widely studied but are often limited by the accessibility of reactants to active sites. Metal-organic frameworks (MOFs), such as MIL-125 (Ti), exhibit enhanced surface areas due to their high intrinsic microporosity, but the pore diameters of most microporous MOFs are often too small to allow for the diffusion of larger reactants (>7 Å) relevant to petroleum and biomass upgrading. In this work, hierarchical microporous MIL-125 exhibiting significantly enhanced interparticle mesoporosity was synthesized using a chelating-free, vapor-assisted crystallization method. The resulting hierarchical MOF was examined as an active catalyst for the oxidation of dibenzothiophene (DBT) with tert-butyl hydroperoxide and outperformed the solely microporous analogue. This was attributed to greater access of the substrate to surface active sites, as the pores in the microporous analogues were of inadequate size to accommodate DBT. Moreover, thiophene adsorption studies suggested the mesoporous MOF contained larger amounts of unsaturated metal sites that could enhance the observed catalytic activity.

Functionalized MIL-101 with imidazolium-based ionic liquids for the cycloaddition of CO2 and epoxides under mild condition

Science.gov (United States)

Liu, Dan; Li, Gang; Liu, Haiou

2018-01-01

A kind of multi-functional sites metal-organic framework (MOF) composite (MIL-101-IMBr) was successfully prepared by post-synthesis modification of MIL-101 with imidazolium-based ionic liquids. The ionic liquids not only functionalize as basic sites but also provide halide anions, which serve as a nucleophile in cycloaddition reaction. The prepared functional MOF materials were characterized by X-ray diffraction, fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive spectroscopy, N2 adsorption-desorption and CO2 temperature programmed desorption. The results of fourier transform infrared spectroscopy and energy dispersive spectroscopy show that the MIL-101-IMBr composite was successfully synthesized. The N2 adsorption-desorption results clearly demonstrated that the modified composites still preserve high BET surface area and total pore volume. The composite exhibits high catalytic activity for the cycloaddition of CO2 with epoxides under mild and co-catalyst free conditions. The conversion of propylene oxide was 95.8% and the selectivity of cyclic carbonate was 97.6% under 0.8 MPa at 80 °C for 4 h. Moreover, the catalyst can be used for at least five times.

Effets de la microdose sur la production du niébé, du mil et du ...

African Journals Online (AJOL)

Effets de la microdose sur la production du niébé, du mil et du sorgho en fonction la toposéquence. Fatimata Saba, Sibiri Jean Baptiste Taonda, Idriss Serme, Alimata A. Bandaogo, Augustin P. Sourwema, Adama Kabre ...

Remarkable adsorptive removal of nitrogen-containing compounds from a model fuel by a graphene oxide/MIL-101 composite through a combined effect of improved porosity and hydrogen bonding

Energy Technology Data Exchange (ETDEWEB)

Ahmed, Imteaz; Jhung, Sung Hwa, E-mail: sung@knu.ac.kr

2016-08-15

Highlights: • Metal-organic frameworks (MIL-101) were composed with graphene oxide (GnO). • GnO/MIL-101 showed the highest adsorption capacity for indole and quinoline. • Adsorption mechanism was clearly shown based on adsorption results and FTIR. • GnO/MIL-101 might be applied commercially considering capacity and reusability. - Abstract: A composite was prepared by combining a highly porous metal-organic framework (MOF), MIL-101 (Cr-benzenedicarboxylate), and graphene oxide (GnO). The porosity of the composite increased appreciably by the addition of GnO up to a specific amount in the MOF, though further increases in the quantity of GnO was detrimental to porosity. The improved porosity of the GnO/MIL-101 composite was utilized for adsorptive denitrogenation (ADN) of a model fuel where indole (IND) and quinoline (QUI) were used as nitrogen-containing compounds (NCCs). It was found that both IND and QUI showed improved adsorption on the composite compared with pristine MIL-101 or GnO due to the improved porosity of the composite. Interestingly, the improvement in adsorption of IND was much higher than the quantity estimated for the porosity. Importantly, GnO/MIL-101 showed the highest adsorption capacities for NCCs. Irrespective of the studied solvents and co-presence of IND and QUI, the composite adsorbent performed ADN most effectively. This remarkable improvement is explained by the additional mechanism of hydrogen bonding between the surface functional groups of GnO and the hydrogen attached to the nitrogen atom of IND. This hydrogen bonding mechanism is also supported by the results of the adsorption of pyrrole and methylpyrrole. On the other hand, QUI does not show hydrogen-bonding capability, and therefore, its enhanced adsorption originates from only the increased porosity of the adsorbents.

Remarkable adsorptive removal of nitrogen-containing compounds from a model fuel by a graphene oxide/MIL-101 composite through a combined effect of improved porosity and hydrogen bonding

International Nuclear Information System (INIS)

Ahmed, Imteaz; Jhung, Sung Hwa

2016-01-01

Highlights: • Metal-organic frameworks (MIL-101) were composed with graphene oxide (GnO). • GnO/MIL-101 showed the highest adsorption capacity for indole and quinoline. • Adsorption mechanism was clearly shown based on adsorption results and FTIR. • GnO/MIL-101 might be applied commercially considering capacity and reusability. - Abstract: A composite was prepared by combining a highly porous metal-organic framework (MOF), MIL-101 (Cr-benzenedicarboxylate), and graphene oxide (GnO). The porosity of the composite increased appreciably by the addition of GnO up to a specific amount in the MOF, though further increases in the quantity of GnO was detrimental to porosity. The improved porosity of the GnO/MIL-101 composite was utilized for adsorptive denitrogenation (ADN) of a model fuel where indole (IND) and quinoline (QUI) were used as nitrogen-containing compounds (NCCs). It was found that both IND and QUI showed improved adsorption on the composite compared with pristine MIL-101 or GnO due to the improved porosity of the composite. Interestingly, the improvement in adsorption of IND was much higher than the quantity estimated for the porosity. Importantly, GnO/MIL-101 showed the highest adsorption capacities for NCCs. Irrespective of the studied solvents and co-presence of IND and QUI, the composite adsorbent performed ADN most effectively. This remarkable improvement is explained by the additional mechanism of hydrogen bonding between the surface functional groups of GnO and the hydrogen attached to the nitrogen atom of IND. This hydrogen bonding mechanism is also supported by the results of the adsorption of pyrrole and methylpyrrole. On the other hand, QUI does not show hydrogen-bonding capability, and therefore, its enhanced adsorption originates from only the increased porosity of the adsorbents.

Surnud mehe käsi / Veiko Belials

Index Scriptorium Estoniae

Belials, Veiko, 1966-

1997-01-01

Arvustus: Asimov, Isaac. Asum / inglise k. tlk. Linda Ariva. Tallinn : Eesti Raamat, 1985. (Mirabilia); Asimov, Isaac. Asum ja impeerium / inglise k. tlk. Linda Ariva. Tallinn : Eesti Raamat, 1989. (Mirabilia); Asimov, Isaac. Teine asum / inglise k. tlk. Indrek Elling. Tallinn : Eesti Raamat, 1996. (Mirabilia)

Chitosan capped nanoscale Fe-MIL-88B-NH2 metal-organic framework as drug carrier material for the pH responsive delivery of doxorubicin

Science.gov (United States)

Sivakumar, P.; Priyatharshni, S.; Nagashanmugam, K. B.; Thanigaivelan, A.; Kumar, K.

2017-08-01

In recent years nanoscale metal-organic frameworks (NMOFs) are contributing as an effective material for use in drug delivery and imaging applications due to their porous surfaces and easy surface modifications. In this work, Fe-MIL-88B-NH2 NMOFs were successfully synthesized on facile hydrothermal route and 2-aminoterephthalic acid (NH2-BDC) was employed as a bridging ligand to activate amine functional groups on the surface. Amine functional groups not only serve as a structure stabilizing agent but also enhance the loading efficiency of the doxorubicin (DOX) anticancer drug. A pH responsive DOX release was realized by introducing a positively charged chitosan (Chi) capping layer. Upon Chi-coating, cleavage was observed in the Fe-MIL-88B-NH2 structure at acidic pH, while gel-like insoluble structure was formed at basic pH. By utilizing this phenomenon, a pH responsive DOX release system was developed by using Chi capped Fe-MIL-88B-NH2 NMOFs under the designed pH (4.0-8.0). The results suggest the Chi capped Fe-MIL-88B-NH2 can be a promising candidate for future pH responsive drug delivery systems.

Green synthesis and evaluation of an iron-based metal-organic framework MIL-88B for efficient decontamination of arsenate from water.

Science.gov (United States)

Hou, Shuliang; Wu, Yi-Nan; Feng, Lingyu; Chen, Wei; Wang, Ying; Morlay, Catherine; Li, Fengting

2018-02-13

Iron-containing metal-organic frameworks (MOFs) have gradually emerged as environmentally benign alternatives for reducing the levels of environmental contamination because of their advantages, such as readily obtained raw materials with low cost, nontoxic metal source with good biocompatibility, and distinguished physicochemical features e.g., high porosity, framework flexibility, and semiconductor properties. In this study, we reported an innovative strategy for synthesizing an iron-based MOF, MIL-88B, at room temperature. The novelty of this strategy was the use of ethanol as solvent and the pretreatment of dry milling with neither the bulk use of a toxic organic solvent nor the addition of extremely dangerous hydrofluoric acid or strong alkali. The synthesized MIL-88B(Fe) was evaluated as a sorbent for removing arsenate in water and it exhibited high adsorption capacity (156.7 mg g -1 ) at a low dosage. The removal capacity of trace arsenate on MIL-88B(Fe) was 32.3 mg g -1 at a low equilibrium concentration (6.4 μg L -1 ), which satisfied the arsenic threshold for drinking water. The results of Fourier transform infrared and X-ray photoelectron spectroscopy indicated that the As(v) molecules bonded with the oxygen molecules, which were coordinated with FeO clusters in the framework. This work presented the potential use of the up-scaled MIL-88B as an excellent sorbent for purifying arsenate-contaminated water.

Metal organic framework g-C3N4/MIL-53(Fe) heterojunctions with enhanced photocatalytic activity for Cr(VI) reduction under visible light

Science.gov (United States)

Huang, Wenyuan; Liu, Ning; Zhang, Xiaodong; Wu, Minghong; Tang, Liang

2017-12-01

In this study, hybrid nanocomposites based on Fe-based MOF and graphitic carbon nitride (g-C3N4) were developed by a facile solvothermal method. The as-prepared materials were characterized by XRD, FESEM, TEM, XPS and PL analysis. It was showed that the introduction of a certain amount of g-C3N4 on the surface of MIL-53(Fe) would improve the separation and migration rate of photo-induced charges, consequently resulting in the boost of photocatalytic efficiency. Compared with g-C3N4 and MIL-53(Fe), the CMFe composites displayed more excellent visible light-resposive photocatalytic activity for the reduction of Cr(VI). The optimal doping content of g-C3N4 in g-C3N4/MIL-53(Fe) composite was determined to be 3.0 wt%, and it showed about 2.1 and 2.0 times as high photocatalytic efficiency for the reduction of Cr(VI) as that of pure g-C3N4 and MIL-53(Fe), respectively. Meanwhile, the composite exhibited good reusability and stability in the process of cyclic experiments. A possible photocatalytic reaction mechanism was also investigated in detail by the related electrochemical analysis.

Propuesta de una planificación estratégica e indicadores de desempeño para la empresa Talleres Mil Usos

OpenAIRE

Gómez Zhiminaicela, Johanna Elizabeth; Redrován Reyes, Mayra Elizabeth

2014-01-01

En el presente trabajo se realizó una propuesta de Planificación Estratégica y medidores de desempeño para la empresa Talleres Mil Usos, se analizó los diferentes parámetros de la Planificación Estratégica y su importancia dentro de las organizaciones, también se planteó objetivos, estrategias e indicadores desempeño para verificar su desempeño laboral. In this work was carried out a Strategic Planning proposal and performance mediators for the company Talleres Mil Usos, looking at differe...

Pärnu laste lemmik on "Leiutajateküla Lotte" / Signe Peeker

Index Scriptorium Estoniae

Peeker, Signe

2008-01-01

Pärnu lapsed valisid parimaks omamaiseks raamatuks Andrus Kivirähki "Leiutajateküla Lotte", teise koha sai Urmas Lennuki "Söö ära söö". Esile tõsteti veel Kristiina Kassi raamat "Samueli võlupadi", Aidi Valliku raamat "Narkohollo ehk Florose vabastamine", Henno Käo raamat "Siil Sagriku seiklused" ja Reet Made raamat "Vallatuste pood". Parimateks kunstnikeks valiti Moritz ja Epp Marguste. Täiskasvanud lasteraamatutehuvilised valisid parimaks Jaanus Vaiksoo "Onu Heino eksis ära" ja parimaks kunstnikuks Priit Rea

Petits mils, énorme potentiel : diversifiés, nutritifs et adaptés aux ...

International Development Research Centre (IDRC) Digital Library (Canada)

29 avr. 2016 ... Dans les pays en développement, le manque de diversité dans l'alimentation est l'une des principales causes de la malnutrition et de la prévalence de maladies non transmissibles comme le diabète. La culture des petits mils en complément des cultures existantes pourrait faire partie de la solution.

Correlation of Gas Permeability in a Metal-Organic Framework MIL-101(Cr)-Polysulfone Mixed-Matrix Membrane with Free Volume Measurements by Positron Annihilation Lifetime Spectroscopy (PALS).

Science.gov (United States)

Jeazet, Harold B Tanh; Koschine, Tönjes; Staudt, Claudia; Raetzke, Klaus; Janiak, Christoph

2013-10-25

Hydrothermally stable particles of the metal-organic framework MIL-101(Cr) were incorporated into a polysulfone (PSF) matrix to produce mixed-matrix or composite membranes with excellent dispersion of MIL-101 particles and good adhesion within the polymer matrix. Pure gas (O2, N2, CO2 and CH4) permeation tests showed a significant increase of gas permeabilities of the mixed-matrix membranes without any loss in selectivity. Positron annihilation lifetime spectroscopy (PALS) indicated that the increased gas permeability is due to the free volume in the PSF polymer and the added large free volume inside the MIL-101 particles. The trend of the gas transport properties of the composite membranes could be reproduced by a Maxwell model.

Preparation of MIL-53(Fe)-Reduced Graphene Oxide Nanocomposites by a Simple Self-Assembly Strategy for Increasing Interfacial Contact: Efficient Visible-Light Photocatalysts.

Science.gov (United States)

Liang, Ruowen; Shen, Lijuan; Jing, Fenfen; Qin, Na; Wu, Ling

2015-05-13

In this work, MIL-53(Fe)-reduced graphene oxide (M53-RGO) nanocomposites have been successfully fabricated by a facile and efficient electrostatic self-assembly strategy for improving the interfacial contact between RGO and the MIL-53(Fe). Compared with D-M53-RGO (direct synthesis of MIL-53(Fe)-reduced graphene oxide nanocomposites via one-pot solvothermal approach), M53-RGO nanocomposites exhibit improved photocatalytic activity compared with the D-M53-RGO under identical experimental conditions. After 80 min of visible light illumination (λ ≥ 420 nm), the reduction ratio of Cr(VI) is rapidly increased to 100%, which is also higher than that of reference sample (N-doped TiO2). More significantly, the M53-RGO nanocomposites are proven to perform as bifunctional photocatalysts with considerable activity in the mixed systems (Cr(VI)/dyes) under visible light, which made it a potential candidate for industrial wastewater treatment. Combining with photoelectrochemical analyses, it could be revealed that the introduction of RGO would minimize the recombination of photogenerated electron-hole pairs. Additionally, the effective interfacial contact between MIL-53(Fe) and RGO surface would further accelerate the transfer of photogenerated electrons, leading to the enhancement of photocatalytic activity of M53-RGO toward photocatalytic reactions. Finally, a possible photocatalytic reaction mechanism is also investigated in detail.

Synthesis, characterization and sorption properties of functionalized Cr-MIL-101-X (X=–F, –Cl, –Br, –CH3, –C6H4, –F2, –(CH3)2) materials

International Nuclear Information System (INIS)

Buragohain, Amlan; Couck, Sarah; Van Der Voort, Pascal; Denayer, Joeri F.M.; Biswas, Shyam

2016-01-01

Four existing and three new functionalized chromium terephthalates having MIL-101 topology and denoted as Cr-MIL-101-X (existing ones with X=–F, 1-F; –Cl, 2-Cl; –Br, 3-Br; –CH 3 , 4-CH 3 ; new ones with X=–C 6 H 4 , 5-C 6 H 4 ; –F 2 , 6-F 2 , –(CH 3 ) 2 , 7-(CH 3 ) 2 ) were synthesized under hydrothermal conditions. All the materials except 5-C 6 H 4 could be prepared by a general synthetic route, in which the mixtures of CrO 3 , H 2 BDC-X (BDC=1,4-benzenedicarboxylate) linkers, conc. HCl and water with a molar ratio of 1:1:3.9:222.2 were reacted at 180 °C for 144 h. Compared to the 144 h of synthesis time, three of the compounds, namely 1-Cl, 2-Br and 5-C 6 H 4 , could be prepared in much shorter reaction times (12–18 h at 180–210 °C). The materials possess high thermal stability up to 270–300 °C in an air atmosphere. The activated compounds exhibit significant porosity (S BET range: 1273–2135 m 2 g −1 ). At 0 °C and 1 bar, the CO 2 adsorption capacities of the compounds fall in the 1.7–2.9 mmol g −1 range. Compounds 1-F and 6-F 2 showed enhanced CO 2 uptake values compared to parent Cr-MIL-101. The benzene adsorption capacities of the compounds lie in the range of 66.2–139.5 molecules per unit cell at 50 °C and p/p 0 =0.35. The increased benzene uptake value of 1-F compared to un-functionalized Cr-MIL-101 and 4-CH 3 suggests that the fluorination has induced more hydrophobicity in Cr-MIL-101 as compared to the methylation. - Graphical abstract: Benzene adsorption by seven functionalized Cr-MIL-101-X metal-organic framework (MOF) materials Display Omitted - Highlights: • Seven functionalized Cr-MIL-101-X materials were synthesized solvothermally. • All Cr-MIL-101-X materials exhibited high thermal stability up to 270–300 °C in air. • All Cr-MIL-101-X compounds displayed considerable porosity towards N 2 , CO 2 and benzene. • Mono- and di-fluorinated Cr-MIL-101 materials showed enhanced CO 2 adsorption capacities. �

Characterization of adsorbed water in MIL-53(Al) by FTIR spectroscopy and ab-initio calculations.

Science.gov (United States)

Salazar, J M; Weber, G; Simon, J M; Bezverkhyy, I; Bellat, J P

2015-03-28

Here, we report ab-initio calculations developed with a twofold purpose: understand how adsorbed water molecules alter the infrared spectrum of the metal-organic framework MIL-53(Al) and to investigate which are the associated physico-chemical processes. The analyzed structures are the two anhydrous narrow (np⊘) and large (lp⊘) pore forms and the hydrated narrow pore form (np-H2O) of the MIL-53(Al). For these structures, we determined their corresponding infrared spectra (FTIR) and we identified the vibrational modes associated to the dominant spectral lines. We show that wagging and scissoring modes of CO2 give flexibility to the structure for facilitating the lp⊘- np⊘ transition. In our studies, this transition is identified by eight vibrational modes including the δCH(18a) vibrational mode currently used to identify the mentioned transition. We report an exhaustive band identification of the infrared spectra associated to the analyzed structures. Moreover, the FTIR for the np-H2O structure allowed us to identify four types of water molecules linked to the host structure by one to three hydrogen bonds.

Augmentation de la production de petits mils en Asie du Sud | CRDI ...

International Development Research Centre (IDRC) Digital Library (Canada)

La production de petits mils, en dépit des vertus nutritionnelles de cette céréale, de sa capacité de croître dans des conditions difficiles et de sa facilité de stockage, a toujours été négligée par les politiques agricoles déployées en Asie du Sud. Ces dernières, en effet, ont privilégié les cultures de rente et les céréales comme ...

Effect of Amine-Functionalized MIL-53 Metal Organic Frameworks on the Performance of Poly(4-methyl-1-pentyne Membrane in CO2/CH4 Separation Gas Mixture

Directory of Open Access Journals (Sweden)

Reza Abedini

2015-06-01

Full Text Available The effect of NH2-MIL 53 metal organic framework (MOF on gas transport properties of poly(4-methyl-1-pentyne (PMP was investigated. Various characterization methods such as FTIR, DSC, SEM and gas adsorption test as well as a series of CO2/CH4 gas separation tests (i.e., pure and mixed gas test were conducted in order to determine the effect of ligand functionalization (–NH2 on the properties of the prepared mixed matrix membranes and their gas transport characteristics. The results of DSC showed that glass transition temperature (Tg increased by increasing NH2-MIL 53 loading. The SEM images also demonstrated that the NH2-MIL 53 particles were dispersed well in the PMP matrix with no noticeable agglomeration. The gas adsorption test of NH2-MIL 53 particles revealed there was a selective adsorption behavior with respect to CO2. It was also found that, incorporation of NH2-MIL 53 into the PMP resulted in an increase in gas permeability (especially towards CO2 and a higher CO2/CH4 selectivity. Adding 30 wt% NH2-MIL 53 into the polymer matrix increased CO2 permeability and CO2/CH4 selectivity of the mixed gas from 83.35 to 210.21 barrer and 7.61 to 19.88, respectively. Rising the temperature from 30 to 60°C led to the permeability increment of both CO2 and CH4 in the mixed gas test, while the CO2/CH4 selectivity decreased. Moreover, the results showed that amino groups required no regeneration and their performance did not decline during 120 h of permeation test. A comparison between the permeation data and those calculated from permeation models revealed that the Bruggeman model could fit the CO2 permeability data better than the Maxwell and Lewis models.

Juegos de palabras y música en El Cortesano de Luis Milán

Directory of Open Access Journals (Sweden)

Alfonso Colella

2015-12-01

Full Text Available Este artículo analiza cómo, en El Cortesano, la música y la actuación musical se ven fuertemente afectadas por el carácter burlesco e ingenioso de todos los personajes que frecuentan las reuniones de Fernando de Aragón y de la reina Germana de Foix. Por lo tanto, el músico Milán, para cumplir con todas las expectativas de este mundo del entretenimiento y del juego, debe basarse necesariamente en una serie de opciones interpretativas que permitan actuaciones rápidas en función de las demandas de su público. Lo que emerge es una imagen del músico y de la música diferente de lo que se esperaría normalmente. En una sociedad de este tipo, no cuenta la música entendida en su estética y aspectos técnicos, sino la capacidad de gestionar las apariencias y someterse a las pruebas y los mandatos impuestos por los rituales del juego cortesano. Tenemos muchos ejemplos en que Milán se muestra con pasividad y sumisión. Pero es normal, porque esto entra en los códigos de la vida de la corte. This article takes into consideration El Cortesano (1561 by Luis Milán: in this text the musical performance is strongly influenced by the playful attitudes of the individuals who attended the court meetings of Fernando de Aragón and Germana de Foix. Therefore, the musician has to keep in mind every expectation of courtly entertainment and gaming, and morevoer he must open his interpretative options to meet also the demands of the public. What emerges is a picture of the musician and his music that is different from what one would expect in another social context. In such aristocratic society as the Duke of Calabria, music was not understood only in terms of its aesthetic values and technical aspects, but it also required that the player accepted the rituals of the courtly game.

Fe3O4 and metal-organic framework MIL-101(Fe) composites catalyze luminol chemiluminescence for sensitively sensing hydrogen peroxide and glucose.

Science.gov (United States)

Qian Tang, Xue; Dan Zhang, Yi; Wei Jiang, Zhong; Mei Wang, Dong; Zhi Huang, Cheng; Fang Li, Yuan

2018-03-01

In this work, Fe 3 O 4 and metal-organic framework MIL-101(Fe) composites (Fe 3 O 4 /MIL-101(Fe)) was demonstrated to possess excellent catalytic property to directly catalyze luminol chemiluminescence without extra oxidants. We utilized Fe 3 O 4 /MIL-101(Fe) to develop a ultra-sensitive quantitative analytical method for H 2 O 2 and glucose. The possible mechanism of the chemiluminescence reaction had been investigated. Under optimal conditions, the relative chemiluminescence intensity was linearly proportional to the logarithm of H 2 O 2 concentration in the range of 5-150nM with a limit of detection of 3.7nM (signal-to-noise ratio = 3), and glucose could be linearly detected in the range from 5 to 100nM and the detection limit was 4.9nM (signal-to-noise ratio = 3). Furthermore, the present approach was successfully applied to quantitative determination of H 2 O 2 in medical disinfectant and glucose in human serum samples. Copyright © 2017 Elsevier B.V. All rights reserved.

Fabrication, interfacial characterization and mechanical properties of continuous Al{sub 2}O{sub 3} ceramic fiber reinforced Ti/Al{sub 3}Ti metal-intermetallic laminated (CCFR-MIL) composite

Energy Technology Data Exchange (ETDEWEB)

Han, Yuqiang; Lin, Chunfa; Han, Xiaoxiao; Chang, Yunpeng; Guo, Chunhuan, E-mail: guochunhuan@hrbeu.edu.cn; Jiang, Fengchun, E-mail: fengchunjiang@hrbeu.edu.cn

2017-03-14

Continuous Al{sub 2}O{sub 3} ceramic fiber reinforced Ti/Al{sub 3}Ti metal-intermetallic laminated (CCFR-MIL) composite was fabricated using a vacuum hot pressing (VHP) sintering method and followed by hot isostatic pressing (HIP). The microstructure characteristics of the interfaces between Ti and Al{sub 3}Ti, as well as Al{sub 2}O{sub 3} fiber and Al{sub 3}Ti intermetallic were analyzed by scanning electron microscopy (SEM). Elemental distribution in the interfacial reaction zones were quantitatively examined by energy-dispersive spectroscopy (EDS). The phases in the composite were identified by X-ray diffractometer (XRD). The mechanical properties of the CCFR-MIL composite were measured using compression and tensile tests under quasi-static strain rate. The experimental results indicated that the residual Al was found in Al{sub 3}Ti intermetallic layer of CCFR-MIL composite. The interfacial reactions occurred during HIP and the reaction products were determined to be Al{sub 2}Ti, TiSi{sub 2}, TiO{sub 2} and Al{sub 2}SiO{sub 5} phases. Compared to Ti/Al{sub 3}Ti MIL composite without fiber reinforcement, both the strength and failure strain of CCFR-MIL composite under both compressive and tensile stress states increased due to the contribution of the continuous ceramic Al{sub 2}O{sub 3} fiber.

Facile Synthesis of Potassium Poly(heptazine imide) (PHIK)/Ti-Based Metal-Organic Framework (MIL-125-NH2) Composites for Photocatalytic Applications.

Science.gov (United States)

Rodríguez, Nicolás A; Savateev, Aleksandr; Grela, María A; Dontsova, Dariya

2017-07-12

Photocatalytically active composites comprising potassium poly(heptazine imide) (PHIK) and a Ti-based metal-organic framework (MOF, MIL-125-NH 2 ) are prepared in situ by simply dispersing both materials in water. The driving forces of composite formation are the electrostatic interactions between the solids and the diffusion of potassium ions from PHIK to MIL-125-NH 2 . This mechanism implies that other composites of poly(heptazine imide) salts and different MOFs bearing positive surface charge can potentially be obtained in a similar fashion. The suggested strategy thus opens a new avenue for the facile synthesis of such materials. The composites are shown to have a superior photocatalytic activity in Rhodamine B degradation under blue light irradiation. The reaction rate is doubled compared to that of pure MOF compound and is 7 times higher than the activity of the pristine PHIK. The results of the electron paramagnetic resonance (EPR) investigations and the analysis of the electronic structures of the solids suggest the electron transfer from MIL-125-NH 2 to PHIK in the composite. The possible pathways for the dye degradation and the rationalization of the increased activity of the composites are elaborated.

Ship-in-a-bottle CMPO in MIL-101(Cr) for selective uranium recovery from aqueous streams through adsorption.

Science.gov (United States)

De Decker, Jeroen; Folens, Karel; De Clercq, Jeriffa; Meledina, Maria; Van Tendeloo, Gustaaf; Du Laing, Gijs; Van Der Voort, Pascal

2017-08-05

Mesoporous MIL-101(Cr) is used as host for a ship-in-a-bottle type adsorbent for selective U(VI) recovery from aqueous environments. The acid-resistant cage-type MOF is built in-situ around N,N-Diisobutyl-2-(octylphenylphosphoryl)acetamide (CMPO), a sterically demanding ligand with high U(VI) affinity. This one-step procedure yields an adsorbent which is an ideal compromise between homogeneous and heterogeneous systems, where the ligand can act freely within the pores of MIL-101, without leaching, while the adsorbent is easy separable and reusable. The adsorbent was characterized by XRD, FTIR spectroscopy, nitrogen adsorption, XRF, ADF-STEM and EDX, to confirm and quantify the successful encapsulation of the CMPO in MIL-101, and the preservation of the host. Adsorption experiments with a central focus on U(VI) recovery were performed. Very high selectivity for U(VI) was observed, while competitive metal adsorption (rare earths, transition metals...) was almost negligible. The adsorption capacity was calculated at 5.32mg U/g (pH 3) and 27.99mg U/g (pH 4), by fitting equilibrium data to the Langmuir model. Adsorption kinetics correlated to the pseudo-second-order model, where more than 95% of maximum uptake is achieved within 375min. The adsorbed U(VI) is easily recovered by desorption in 0.1M HNO 3 . Three adsorption/desorption cycles were performed. Copyright © 2017 Elsevier B.V. All rights reserved.

HKUST-1 Membranes Anchored on Porous Substrate by Hetero MIL-110 Nanorod Array Seeds.

Science.gov (United States)

Mao, Yiyin; Cao, Wei; Li, Junwei; Sun, Luwei; Peng, Xinsheng

2013-09-02

Great anchors and seeds: Hetero-seeding growth processes and anchored nanorod arrays were successfully utilized in the synthesis of HKUST-1 membranes. These arrays were firmly anchored on porous substrates by using a MIL-110 nanorod array as both the anchor and seed. The resulting HKUST-1 membranes demonstrated good separation factors for binary gases exceeding the Knudson selectivity. Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim.

Effets de la microdose sur la production du niébé, du mil et du ...

African Journals Online (AJOL)

respectivement pour le sorgho, le mil et le niébé comparativement au témoin. La microdose a été .... Les prix utilisés sont celui du marché local au moment des semis pour les engrais soit 17500 FCFA pour NPK et ..... Projet « Transfert de la.

Trivalent Chromium Process (TCP) as a Sealer for MIL-A-8625F Type II, IIB, and IC Anodic Coatings

National Research Council Canada - National Science Library

Matzdorf, Craig; Beck, Erin; Hilgeman, Amy; Prado, Ruben

2008-01-01

This report documents evaluations of trivalent chromium compositions (TCP) as sealers for MIL-A-8625F Type II, IIB, and IC anodic coatings conducted from March 2001 through December 2007 by Materials Engineering...

Kirjanik ja pasatornaado I / Tiit Aleksejev

Index Scriptorium Estoniae

Aleksejev, Tiit, 1968-

2008-01-01

Vene kodusõja kajastamisest 1920. aastate nõukogude proosas. Käsitletakse Isaak Babeli novellikogu "Ratsaarmee" (tõlkinud Olev Jõgi. Tallinn : Eesti Raamat, 1977), Boriss Lavrenjovi jutustust "Neljakümne esimene" (tõlkinud Jüri Karindi. Tallinn : Eesti Raamat, 1975), Viktor Kini jutustust "Valgete tagalas" (tõlkinud Jüri Ojamaa. Tallinn : Eesti Raamat, 1978), Hubert Minagrelli jutustust "Neli sõdurit" (pr. k. "Quatre soldats"), Andrei Platonovi novelli "Inimene iseendas" (ilmunud raamatus "Meistri saamine" / tõlkinud Virve Krimm. Tallinn : Eesti Raamat, 1979) ja romaani "Tševengur" (ilmunud raamatus "Tševengur. Kotlovan. Rasskazõ". Moskva, 2007), samuti ka Arkadi Gaidari loomingut

Correlation of Gas Permeability in a Metal-Organic Framework MIL-101(Cr)–Polysulfone Mixed-Matrix Membrane with Free Volume Measurements by Positron Annihilation Lifetime Spectroscopy (PALS)

Science.gov (United States)

Jeazet, Harold B. Tanh; Koschine, Tönjes; Staudt, Claudia; Raetzke, Klaus; Janiak, Christoph

2013-01-01

Hydrothermally stable particles of the metal-organic framework MIL-101(Cr) were incorporated into a polysulfone (PSF) matrix to produce mixed-matrix or composite membranes with excellent dispersion of MIL-101 particles and good adhesion within the polymer matrix. Pure gas (O2, N2, CO2 and CH4) permeation tests showed a significant increase of gas permeabilities of the mixed-matrix membranes without any loss in selectivity. Positron annihilation lifetime spectroscopy (PALS) indicated that the increased gas permeability is due to the free volume in the PSF polymer and the added large free volume inside the MIL-101 particles. The trend of the gas transport properties of the composite membranes could be reproduced by a Maxwell model. PMID:24957061

Thermally driven refrigeration by methanol adsorption on coatings of HKUST-1 and MIL-101(Cr)

International Nuclear Information System (INIS)

Kummer, Harry; Baumgartner, Max; Hügenell, Philipp; Fröhlich, Dominik; Henninger, Stefan K.; Gläser, Roger

2017-01-01

Highlights: • A novel approach of shaping MOFs as coatings on Al-substrates used as HX materials. • The efficiency of HKUST-1 and MIL-101(Cr) for refrigeration via Methanol sorption. • The thermal stability of the MOF coatings under application relevant conditions. • Focus on early implementation by use of commercially and pre-industrially MOFs. • Modelling of sorption uptakes under application conditions for apparatus design. - Abstract: A new and versatile binder-based metal organic framework-(MOF-) coating enables efficient use in fast-cycle adsorption chillers for cooling and refrigeration applications. Two different adsorbents were presented, HKUST-1 and Mil-101(Cr), with promising methanol adsorption characteristics and high loading capacities up to 1.22 g g"−"1. Polysiloxane-based coatings containing 65 and 80 wt% of the MOF adsorbents were produced and the adsorption characteristics were studied before and after extensive thermal treatment over 1000 cycles between 20 °C and 130 °C under methanol atmosphere by thermogravimetric analysis and X-ray diffractometry. Using the Dubinin-Astakhov approach, possible methanol loading lifts in a refrigeration process under different application conditions were quantified.

H5PV2Mo10O40 encapsulated in MIL-101(Cr): facile synthesis and characterization of rationally designed composite materials for efficient decontamination of sulfur mustard.

Science.gov (United States)

Li, Yanqin; Gao, Qi; Zhang, Lijuan; Zhou, Yunshan; Zhong, Yuxu; Ying, Ying; Zhang, Mingcai; Huang, Chunqian; Wang, Yong'an

2018-04-24

Currently extensive effort is compulsively expended to decontaminate efficiently banned chemical war agents. In this work, H5PV2Mo10O40 molecules have been encapsulated in mesoporous MIL-101(Cr), which features two types of mesoporous cages (internal diameters of 29 Å and 34 Å) and microporous windows (diameters of 12 Å and 16 Å), leading to the formation of a new composite H5PV2Mo10O40@MIL-101(Cr) through a simple impregnation method. The composite was characterized thoroughly by elemental analysis, FT-IR spectroscopy, powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, TG/DTA, and textural analysis thereby confirming the encapsulation of the H5PV2Mo10O40 into MIL-101(Cr). The decontamination efficiency of sulfur mustard (4 μL HD in 40 μL of petroleum ether) by 20 mg of the composite is found to be 97.39% in 120 min under ambient conditions. GC-MS analysis on the decontaminated products using 2-chloroethyl ethyl sulfide (CEES), which has been widely used as a simulant of sulfur mustard, showed that MIL-101(Cr) just decontaminates CEES by adsorption, while CEES can be decontaminated under ambient conditions by a synergetic combination of adsorption of MIL-101(Cr) and subsequent chemical oxidation degradation to nontoxic 2-chloroethyl ethyl sulfoxide (CEESO) due to the presence of highly dispersed H5PV2Mo10O40 within the composites.

Elucidating the breathing of the metal-organic framework MIL-53(Sc) with ab initio molecular dynamics simulations and in situ X-ray powder diffraction experiments.

Science.gov (United States)

Chen, Linjiang; Mowat, John P S; Fairen-Jimenez, David; Morrison, Carole A; Thompson, Stephen P; Wright, Paul A; Düren, Tina

2013-10-23

Ab initio molecular dynamics (AIMD) simulations have been used to predict structural transitions of the breathing metal-organic framework (MOF) MIL-53(Sc) in response to changes in temperature over the range 100-623 K and adsorption of CO2 at 0-0.9 bar at 196 K. The method has for the first time been shown to predict successfully both temperature-dependent structural changes and the structural response to variable sorbate uptake of a flexible MOF. AIMD employing dispersion-corrected density functional theory accurately simulated the experimentally observed closure of MIL-53(Sc) upon solvent removal and the transition of the empty MOF from the closed-pore phase to the very-narrow-pore phase (symmetry change from P2(1)/c to C2/c) with increasing temperature, indicating that it can directly take into account entropic as well as enthalpic effects. We also used AIMD simulations to mimic the CO2 adsorption of MIL-53(Sc) in silico by allowing the MIL-53(Sc) framework to evolve freely in response to CO2 loadings corresponding to the two steps in the experimental adsorption isotherm. The resulting structures enabled the structure determination of the two CO2-containing intermediate and large-pore phases observed by experimental synchrotron X-ray diffraction studies with increasing CO2 pressure; this would not have been possible for the intermediate structure via conventional methods because of diffraction peak broadening. Furthermore, the strong and anisotropic peak broadening observed for the intermediate structure could be explained in terms of fluctuations of the framework predicted by the AIMD simulations. Fundamental insights from the molecular-level interactions further revealed the origin of the breathing of MIL-53(Sc) upon temperature variation and CO2 adsorption. These simulations illustrate the power of the AIMD method for the prediction and understanding of the behavior of flexible microporous solids.

Fe II/Fe III mixed-valence state induced by Li-insertion into the metal-organic-framework Mil53(Fe): A DFT+U study

Science.gov (United States)

Combelles, C.; Ben Yahia, M.; Pedesseau, L.; Doublet, M.-L.

The iron-based metal-organic-framework MIL53(Fe) has recently been tested as a cathode materials for Li-Ion batteries, leading to promising cycling life and rate capability. Despite a poor capacity of 70 mAh g -1 associated with the exchange of almost 0.5Li/Fe, this result is the first evidence of a reversible lithium insertion never observed in a MOF system. In the present study, the MIL53(Fe) redox mechanism is investigated through first-principles DFT+U calculations. The results show that MIL53(Fe) is a weak antiferromagnetic charge transfer insulator at T = 0 K, with iron ions in the high-spin S = 5/2 state. Its reactivity vs elemental lithium is then investigated as a function of lithium composition and distribution over the most probable Li-sites of the MOF structure. The redox mechanism is fully interpreted as a two-step insertion/conversion mechanism, associated with the stabilization of the Fe 3+/Fe 2+ mixed-valence state prior to the complete decomposition of the inorganic-organic interactions within the porous MOF architecture.

PA171 Containers on a Wood Pallet with Metal Top Adapter, Air Pressure Tests During MIL-STD-1660 Tests

National Research Council Canada - National Science Library

2004-01-01

... (PM-MAS) to conduct Air Pressure Tests during MIL-STD-1660, "Design Criteria for Ammunition Unit Loads" testing on the PA171 containers on a wood pallet with metal top adapter as manufactured by Alliant Tech...

CoFe2O4@MIL-100(Fe) hybrid magnetic nanoparticles exhibit fast and selective adsorption of arsenic with high adsorption capacity

Science.gov (United States)

Yang, Ji-Chun; Yin, Xue-Bo

2017-01-01

In this study, we report the synthesis and application of mesoporous CoFe2O4@MIL-100(Fe) hybrid magnetic nanoparticles (MNPs) for the simultaneous removal of inorganic arsenic (iAs). The hybrid adsorbent had a core-shell and mesoporous structure with an average diameter of 260 nm. The nanoscale size and mesoporous character impart a fast adsorption rate and high adsorption capacity for iAs. In total, 0.1 mg L−1 As(V) and As(III) could be adsorbed within 2 min, and the maximum adsorption capacities were 114.8 mg g−1 for As(V) and 143.6 mg g−1 for As(III), higher than most previously reported adsorbents. The anti-interference capacity for iAs adsorption was improved by the electrostatic repulsion and size exclusion effects of the MIL-100(Fe) shell, which also decreased the zero-charge point of the hybrid absorbent for a broad pH adsorption range. The adsorption mechanisms of iAs on the MNPs are proposed. An Fe-O-As structure was formed on CoFe2O4@MIL-100(Fe) through hydroxyl substitution with the deprotonated iAs species. Monolayer adsorption of As(V) was observed, while hydrogen bonding led to the multi-layer adsorption of neutral As(III) for its high adsorption capacity. The high efficiency and the excellent pH- and interference-tolerance capacities of CoFe2O4@MIL-100(Fe) allowed effective iAs removal from natural water samples, as validated with batch magnetic separation mode and a portable filtration strategy. PMID:28102334

Validation of MIL-F-9490D. General Specification for Flight Control System for Piloted Military Aircraft. Volume III. C-5A Heavy Logistics Transport Validation

Science.gov (United States)

1977-04-01

subjected to extreme environmental climatic tests, including the IdL,-T-5289 test requirement. 5.1.9.2 Invulnerability to Lightning Strikes and Static...specified in Paragraph 3.2.3.2.1. The hydi aulic computing elements were designed to the requirements of MIL-C- 5503 and �-H-8775. I 297 L...and climate in any area of the world using MI,- STD-210, FAA-T3O-(49C, and MIL-F-9490, as applicable. Environmental areas included solar radiation

Towards protective MOFs: post-synthetic modification of MIL-101 with oxime groups and their interactions with toxic chemicals

NARCIS (Netherlands)

Grol, M. van; Gorzkowska-Sobasb, A.A.; Koning, M.C. de

2017-01-01

In an attempt to broaden the scope of protective MOFs towards toxic compounds, we decided to introduce a reactive (nucleophilic) functionality in MIL101 by post-synthesis modification 1,2. This functionality would complement already existing adsorptive properties with an ability to capture or

MIL SPEC 28 Square Foot Fire Burnback and Extinguishment Testing of FireAde, FlameOut II and Hawk ALLFIRE

National Research Council Canada - National Science Library

Barrett, Kimberly D; Kalberer, Jennifer L

2008-01-01

... for hydrocarbon fuel fires. This report documents the evaluation performed on the fire extinguishing agents FireAde 2000 AFFF LP, FlameOut II and Hawk ALLFORE in accordance with the parameters set forth in Military Specification ( MIL SPEC...

Software support for Motorola 68000 microprocessor at CERN. M68MIL cross macro assembler

International Nuclear Information System (INIS)

Eicken, H. von.

1983-01-01

This document is a user's guide for programming the Motorola 68000 microprocessor in assembly language. It describes the programming model, addressing modes and instruction set of the M 68000 as well as the use of the M68mil cross macro assembler. Version 3.6 of the assembler has been installed at CERN on CDC, DEC VAX, IBM, Norsk Data and Siemens computers. The source code of the assembler is available from CERN on request. (orig.)

Multiple Nebular Gas Reservoirs Recorded by Oxygen Isotope Variation in a Spinel-Rich CAI in CO3 MIL 090019

Science.gov (United States)

Simon, J. I.; Simon, S. B.; Nguyen, A. N.; Ross, D. K.; Messenger, S.

2017-07-01

We conducted NanoSIMS ion imaging studies of a primitive spinel-rich CAI from the MIL 090019 CO3 chondrite. It records radial O-isotopic heterogeneity among multiple occurrences of the same mineral, reflecting distinct nebular O-isotopic reservoirs.

A novel metal-organic framework composite MIL-101(Cr)@GO as an efficient sorbent in dispersive micro-solid phase extraction coupling with UHPLC-MS/MS for the determination of sulfonamides in milk samples.

Science.gov (United States)

Jia, Xiuna; Zhao, Pan; Ye, Xiu; Zhang, Lianjun; Wang, Ting; Chen, Qinyu; Hou, Xiaohong

2017-07-01

As a novel material, metal-organic framework/graphite oxide (MIL-101(Cr)@GO) has great potential for the pretreatment of trace analytes. In the present study, MIL-101(Cr)@GO was synthesized using a solvothermal synthesis method at the nanoscale and was applied as sorbent in the dispersive micro-solid phase extraction (DMSPE) for the enrichment of the trace sulfonamides (SAs) from milk samples for the first time. Several experimental parameters including kinds of sorbents, the effect of pH, the amount of MIL-101(Cr)@GO, ionic strength, adsorption time, desorption solvent and desorption time were investigated. Under the optimal conditions, the linear ranges were from 0.1 to 10μg/L, 0.2-20μg/L or 0.5-50μg/L for the analytes with regression coefficients (r) from 0.9942 to 0.9999. The limits of detection were between 0.012 and 0.145μg/L. The recoveries ranged from 79.83% to 103.8% with relative standard deviations (RSDs)MIL-101(Cr)@GO exhibited remarkable advantages compared to MIL-101(Cr), MIL-100(Fe), activated carbon and other sorbent materials used in pretreatment methods. A simple, rapid, sensitive, inexpensive and less solvent consuming method of DMSPE-ultra-high performance liquid chromatography-tandem mass spectrometry (DMSPE-UHPLC-MS/MS) was successfully applied to the pre-concentration and determination of twelve SAs in milk samples. Copyright © 2016 Elsevier B.V. All rights reserved.

Ciberprens@. El medio de los ‘diez mil nombres’

Directory of Open Access Journals (Sweden)

Dr. José Álvarez Marcos

2000-01-01

Full Text Available Los chinos han traducido el significado de World Wide Web como "la red de diez mil dimensiones en el cielo y la tierra". La telaraña cibernética no sólo se ha convertido en un gigantesco hipermercado de la información, donde confluyen medios tradicionales e innovadoras propuestas comunicativas, sino que aparece como el fenómeno de mayor impacto social de los últimos años. En un mundo donde la evolución tecnológica acorta cada vez más los ciclos de la innovación, como bien señala Díaz Nosty, Internet tiene visos de consolidarse como el embrión de la primera gran solución sostenible desde que apareció la televisión, al menos en una interpretación hecha desde el campo de análisis de los medios

Experimentally determined coordinates for three MILS hydrophones near Ascension Island

International Nuclear Information System (INIS)

Harben, P.E.; Hollfelder, J.R.; Rodgers, A.J.

1999-01-01

We conducted an airgun survey in the waters of Ascension Island in May 1999 to determine new locations and depths for three Missile Impact Location System (MILS) hydrophones (ASC23, ASC24, and ASC26) currently in use by the Prototype International Data Center (PIDC) and the National Data Center (NDC). The nominal and new locations are summarized. Although not rigorous, errors in the new locations and depths are conservatively estimated to be less than 100 m. The hydrophones are either on or near the ocean bottom in all three cases. The new depths are consistent with the following: Direct-phase airgun arrivals; Bathymetry determined along the track of the ship used for this airgun survey; Reflected phases from the airgun data; Depths given in the original hydrophone installation report. (author)

Investigation of ball bond integrity for 0.8 mil (20 microns) diameter gold bonding wire on low k die in wire bonding technology

Science.gov (United States)

Kudtarkar, Santosh Anil

Microelectronics technology has been undergoing continuous scaling to accommodate customer driven demand for smaller, faster and cheaper products. This demand has been satisfied by using novel materials, design techniques and processes. This results in challenges for the chip connection technology and also the package technology. The focus of this research endeavor was restricted to wire bond interconnect technology using gold bonding wires. Wire bond technology is often regarded as a simple first level interconnection technique. In reality, however, this is a complex process that requires a thorough understanding of the interactions between the design, material and process variables, and their impact on the reliability of the bond formed during this process. This research endeavor primarily focused on low diameter, 0.8 mil thick (20 mum) diameter gold bonding wire. Within the scope of this research, the integrity of the ball bond formed by 1.0 mil (25 mum) and 0.8 mil (20 mum) diameter wires was compared. This was followed by the evaluation of bonds formed on bond pads having doped SiO2 (low k) as underlying structures. In addition, the effect of varying the percentage of the wire dopant, palladium and bonding process parameters (bonding force, bond time, ultrasonic energy) for 0.8 mil (20 mum) bonding wire was also evaluated. Finally, a degradation empirical model was developed to understand the decrease in the wire strength. This research effort helped to develop a fundamental understanding of the various factors affecting the reliability of a ball bond from a design (low diameter bonding wire), material (low k and bonding wire dopants), and process (wire bonding process parameters) perspective for a first level interconnection technique, namely wire bonding. The significance of this research endeavor was the systematic investigation of the ball bonds formed using 0.8 mil (20 microm) gold bonding wire within the wire bonding arena. This research addressed low k

DEVELOPMENT OF A WELDING PROCEDURE FOR MIL A 46100 ARMOR STEEL JOINTS USING GAS METAL ARC WELDING

Directory of Open Access Journals (Sweden)

DAVID MAZUERA ROBLEDO

2011-01-01

Full Text Available Se desarrolló un procedimiento de soldadura (WPS para unir láminas de acero para blindaje bajo especificación MIL A46100 usando el proceso GMAW, el cual fue calificado mediante ensayos mecánicos y no destructivos (NDT de acuerdo con los requerimientos de códigos militares. Los resultados obtenidos fueron comparados con procedimientos de soldadura para este material realizados con el proceso SMAW. Los resultados obtenidos mostraron que el WPS diseñado es una opción viable para la soldadura de blindajes de acero MIL A 46100. Además, con el WPS diseñado se obtuvo una reducción en el ancho de la zona afectada térmicamente (ZAT que debería conducir a un mejor desempeño en servicio de los blindajes de acuerdo con los resultados de estudios previos. Finalmente, se encontró un incremento en la energía absorbida en los ensayos de impacto Charpy V comparada con la de soldaduras realizadas con el proceso SMAW.

Pyrolytic in situ magnetization of metal-organic framework MIL-100 for magnetic solid-phase extraction.

Science.gov (United States)

Huo, Shu-Hui; An, Hai-Yan; Yu, Jing; Mao, Xue-Feng; Zhang, Zhe; Bai, Lei; Huang, Yan-Feng; Zhou, Peng-Xin

2017-09-29

In this study, we report a facile, environmental friendly fabrication of a type of magnetic metal-organic framework (MOF) MIL-100 that can be used for magnetic solid-phase extraction (MSPE). The magnetic MOF composites were fabricated using in situ calcination method. The as-synthesized materials exhibited both high porosity and magnetic characteristics. They used for the MSPE of polycyclic aromatic hydrocarbons (PAHs) from water samples. Such MOF-based magnetic solid-phase extraction in combination with gas chromatography equipped with a flame ionization detector (GC-FID), exhibited wide linearity (0.02-250μgL -1 ), low detection limits (4.6-8.9ngL -1 ), and high enrichment factors (452-907) for PAHs. The relative standard deviations (RSDs) for intra- and inter-day extractions of PAHs were ranging from 1.7% to 9.8% and 3.8% to 9.2%, respectively. The recoveries for spiked PAHs (1μgL -1 ) in water samples were in the range of 88.5% to 106.6%. The results showed that the special anion-π orbital (electron donor-acceptor) interaction and π-π stacking between magnetic MIL-100 and PAHs play an important role in the adsorption of PAHs. Copyright © 2017. Published by Elsevier B.V.

Salen- Zr(IV) complex grafted into amine-tagged MIL-101(Cr) as a robust multifunctional catalyst for biodiesel production and organic transformation reactions

Science.gov (United States)

Hassan, Hassan M. A.; Betiha, Mohamed A.; Mohamed, Shaimaa K.; El-Sharkawy, E. A.; Ahmed, Emad A.

2017-08-01

The synthesis of metal-organic frameworks (MOFs), porous coordination polymers with functional groups has received immense interest due to the functional groups can offer desirable properties and allow post-synthetic modification. Herein, for the first time, Zr(IV)-Sal Schiff base complex incorporated into amino-functionalized MIL-101(Cr) framework by salicylaldehyde condensing to amino group, and coordinating Zr(IV) ion have been successfully synthesized. The worthiness of the synthesized material as a catalyst has been examined for the esterification of oleic acid (free fatty acid) with methanol producing biodiesel (methyl oleate), Knoveonagel condensation reaction of aldehydes and Friedel-Crafts acylation of anisole. Our findings demonstrated that Salen-Zr(IV) grafted to framework of NH2-MIL-101(Cr) as a solid acid catalyst exhibited distinct catalytic performance for the production of biodiesel by esterification of oleic acid with methanol, Knoveonagel condensation and Friedel-Crafts acylation. These could be attributed to high surface area which allow high distribution of Zr(IV) species lead to a sufficient contact with the reactants species. Furthermore, the catalyst showed excellent recycling efficiency due to the strong interaction between the Zr(IV) ions and chelating groups in the NH2-MIL-101(Cr)-Sal.

Bõ Yin Ŕ ja tema looming

Index Scriptorium Estoniae

2005-01-01

Lühidalt Bõ Yin Ŕ elust ja loomingust, tema raamatutest : Raamat elavast jumalast. Kuressaare, 2003 ; Raamat õnnest. Kuressaare, 2004 ; Armastuseraamat. Kuressaare, 2003 ; Elu mõte. Kuressaare, 2004

Mise en place d'une collection de ressources génétiques du mil ...

African Journals Online (AJOL)

Le mil est une céréale importante pour l'alimentation humaine. La Côte d'Ivoire représente un des centres de production et de consommation. Afin de collecter, conserver et étudier les variabilités existantes, une seconde mission a été effectuée dans les zones de culture de cette céréale en 1989 et 1990, faisant suite à la ...

Aging method for electronic components and systems based on MIL-HDBK 217

International Nuclear Information System (INIS)

Declercq, M.; Simoens, F.

1984-01-01

Accelerated aging tests as requested to comply IEEE Std 323-1974, rise the question of the availability of an adequate aging model. After getting through the usual models, the authors describe an aging methodology based on MIL-HDBK 217. The method, taking into account several stress factors, is shown to yield on acceptable acceleration of time, while reducing the relative importance of temperature. Practical implementation of acceleration testing is discussed, and a summary of the gained experience is made and discussed in the scope of the philosophy of IEEE Std 650. Only natural thermal aging and functional aging, excluding irradiation or thermal shocks, are considered [fr

Fabrication of γ-Fe2O3 Nanoparticles by Solid-State Thermolysis of a Metal-Organic Framework, MIL-100(Fe, for Heavy Metal Ions Removal

Directory of Open Access Journals (Sweden)

Shengtao Hei

2014-01-01

Full Text Available Porous γ-Fe2O3 nanoparticles were prepared via a solid-state conversion process of a mesoporous iron(III carboxylate crystal, MIL-100(Fe. First, the MIL-100(Fe crystal that served as the template of the metal oxide was synthesized by a low-temperature (<100°C synthesis route. Subsequently, the porous γ-Fe2O3 nanoparticles were fabricated by facile thermolysis of the MIL-100(Fe powders via a two-step calcination treatment. The obtained γ-Fe2O3 was characterized by X-ray diffraction (XRD, N2 adsorption, X-ray photoelectron spectroscopy (XPS, and scanning electron microscopy (SEM techniques, and then used as an adsorbent for heavy metal ions removal in water treatment. This study illustrates that the metal-organic frameworks may be suitable precursors for the fabrication of metal oxides nanomaterials with large specific surface area, and the prepared porous γ-Fe2O3 exhibits a superior adsorption performance for As(V and As(III ions removal in water treatment.

ENHANCEMENT OF ACIDITY AND CATALYTIC ACTIVITY OF ALUMINA BASED METAL ORGANIC FRAMEWORK (MIL-53 Al)

OpenAIRE

Yilmaz, Esra; Sert, Emine; Atalay, Ferhan Sami

2017-01-01

Metal organic frameworks are highly porous materials which are formed bycombination of metal precursor and salts as inorganic part and ligand asorganic part. They have many advantages such as low density, high surface area,tunable pore size and high porosity. Due to peculiar features, such asunsaturated metal active sites, high surface area and easily functionalization,its usage as catalyst are promising.  The MIL-53(Al) structure contains chains of transcorner-sharing [AlO4(OH)2] oc...

Maffia, hullus ja Sannikovi maa / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2011-01-01

Arvustus: Roberts, Gregory David. Shantaram. 1.-2. raamat / tõlkinud Riina Jesmin. Tallinn : Varrak, 2011 ; Akutagawa, Ryūnosuke. Mandariinid tihnikus. Tallinn : Varrak, 2011 ; Põder, Rein. Kauge. Tallinn : Eesti Raamat, 2011

The MIL-88A-Derived Fe3O4-Carbon Hierarchical Nanocomposites for Electrochemical Sensing

Science.gov (United States)

Wang, Li; Zhang, Yayun; Li, Xia; Xie, Yingzhen; He, Juan; Yu, Jie; Song, Yonghai

2015-01-01

Metal or metal oxides/carbon nanocomposites with hierarchical superstructures have become one of the most promising functional materials in sensor, catalysis, energy conversion, etc. In this work, novel hierarchical Fe3O4/carbon superstructures have been fabricated based on metal-organic frameworks (MOFs)-derived method. Three kinds of Fe-MOFs (MIL-88A) with different morphologies were prepared beforehand as templates, and then pyrolyzed to fabricate the corresponding novel hierarchical Fe3O4/carbon superstructures. The systematic studies on the thermal decomposition process of the three kinds of MIL-88A and the effect of template morphology on the products were carried out in detail. Scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy and thermal analysis were employed to investigate the hierarchical Fe3O4/carbon superstructures. Based on these resulted hierarchical Fe3O4/carbon superstructures, a novel and sensitive nonenzymatic N-acetyl cysteine sensor was developed. The porous and hierarchical superstructures and large surface area of the as-formed Fe3O4/carbon superstructures eventually contributed to the good electrocatalytic activity of the prepared sensor towards the oxidation of N-acetyl cysteine. The proposed preparation method of the hierarchical Fe3O4/carbon superstructures is simple, efficient, cheap and easy to mass production. It might open up a new way for hierarchical superstructures preparation. PMID:26387535

Kliiniline kapitalism ja naise neim / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2011-01-01

Tutvustus: Kõiv, Salme. Reet Tammiku. Tallinn : Eesti Raamat, 2011 ; Kalda, Katrin. Eesti romaan / tõlkinud Anti Saar. Tallinn : Varrak, 2011 ; Zola, Émile. Saak / tõlkinud Kaja Riesen. Tallinn : Eesti Raamat, 2011

Synthesis, characterization and sorption properties of functionalized Cr-MIL-101-X (X=–F, –Cl, –Br, –CH{sub 3}, –C{sub 6}H{sub 4}, –F{sub 2}, –(CH{sub 3}){sub 2}) materials

Energy Technology Data Exchange (ETDEWEB)

Buragohain, Amlan [Department of Chemistry, Indian Institute of Technology Guwahati, 781039 Assam (India); Couck, Sarah [Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels (Belgium); Van Der Voort, Pascal [Department of Inorganic and Physical Chemistry, Ghent University, COMOC – Center for Ordered Materials, Organometallics and Catalysis, Krijgslaan 281-S3, 9000 Ghent (Belgium); Denayer, Joeri F.M. [Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels (Belgium); Biswas, Shyam, E-mail: sbiswas@iitg.ernet.in [Department of Chemistry, Indian Institute of Technology Guwahati, 781039 Assam (India)

2016-06-15

Four existing and three new functionalized chromium terephthalates having MIL-101 topology and denoted as Cr-MIL-101-X (existing ones with X=–F, 1-F; –Cl, 2-Cl; –Br, 3-Br; –CH{sub 3}, 4-CH{sub 3}; new ones with X=–C{sub 6}H{sub 4}, 5-C{sub 6}H{sub 4}; –F{sub 2}, 6-F{sub 2}, –(CH{sub 3}){sub 2}, 7-(CH{sub 3}){sub 2}) were synthesized under hydrothermal conditions. All the materials except 5-C{sub 6}H{sub 4} could be prepared by a general synthetic route, in which the mixtures of CrO{sub 3}, H{sub 2}BDC-X (BDC=1,4-benzenedicarboxylate) linkers, conc. HCl and water with a molar ratio of 1:1:3.9:222.2 were reacted at 180 °C for 144 h. Compared to the 144 h of synthesis time, three of the compounds, namely 1-Cl, 2-Br and 5-C{sub 6}H{sub 4}, could be prepared in much shorter reaction times (12–18 h at 180–210 °C). The materials possess high thermal stability up to 270–300 °C in an air atmosphere. The activated compounds exhibit significant porosity (S{sub BET} range: 1273–2135 m{sup 2} g{sup −1}). At 0 °C and 1 bar, the CO{sub 2} adsorption capacities of the compounds fall in the 1.7–2.9 mmol g{sup −1} range. Compounds 1-F and 6-F{sub 2} showed enhanced CO{sub 2} uptake values compared to parent Cr-MIL-101. The benzene adsorption capacities of the compounds lie in the range of 66.2–139.5 molecules per unit cell at 50 °C and p/p{sub 0}=0.35. The increased benzene uptake value of 1-F compared to un-functionalized Cr-MIL-101 and 4-CH{sub 3} suggests that the fluorination has induced more hydrophobicity in Cr-MIL-101 as compared to the methylation. - Graphical abstract: Benzene adsorption by seven functionalized Cr-MIL-101-X metal-organic framework (MOF) materials Display Omitted - Highlights: • Seven functionalized Cr-MIL-101-X materials were synthesized solvothermally. • All Cr-MIL-101-X materials exhibited high thermal stability up to 270–300 °C in air. • All Cr-MIL-101-X compounds displayed considerable porosity towards N{sub 2

Keele salaelu / Kristiina Ross

Index Scriptorium Estoniae

Ross, Kristiina, 1955-

2004-01-01

Vana Testamendi eestikeelsest tõlkest, mille tegid ajavahemikul 1687-1690 isa ja poeg Andreas ja Adrian Virginius. Rmt.: Esimene Moosese raamat. Iiobi raamat / tõlkinud 1687-1690 Andreas ja Adrian Virginius. Tallinn, 2003

Kuidas anda oma elule mõte? Milli ja Nietzsche eksperiment / Märt Väljataga

Index Scriptorium Estoniae

Väljataga, Märt, 1965-

1996-01-01

Arvustus: Mill, John Stuart. Vabadusest / Tlk. Kaja Tael. Tln. : Hortus Litterarum, 1996. (Avatud Eesti Raamat); Nietzsche, Friedrich. Ecce homo : Kuidas saadakse selleks, mis ollakse / Tlk. Jaan Undusk. Tln. : Vagabund, 1996. (Avatud Eesti Raamat)

Kaks kaua viibinud sõpra / Lauri Sommer

Index Scriptorium Estoniae

Sommer, Lauri, 1973-

1999-01-01

Arvustus: Pascal, Blaise. Mõtted / tõlkinud Kristiina Ross. Tallinn : Hortus Litterarum ; Logos, 1998. (Avatud Eesti raamat); Kierkegaard, Saeren. Kartus ja värin / tõlkinud Arvo Alas. Tallinn : Vagabund, 1998. (Avatud Eesti raamat)

MIL-STD-1553 dynamic bus controller/remote terminal hybrid set

Science.gov (United States)

Friedman, S. N.

This paper describes the performance, physical and electrical requirements of a Dual Redundant BUS Interface Unit (BIU) acting as a BUS Controller Interface Unit (BCIU) or Remote Terminal Unit (RTU) between a Motorola 68000 VME BUS and MIL-STD-1553B Multiplex Data Bus. A discussion of how the BIU Hybrid set is programmed, and operates as a BCIU or RTU, will be included. This paper will review Dynamic Bus Control and other Mode Code capabilities. The BIU Hybrid Set interfaces to a 68000 Microprocessor with a VME Bus using programmed I/O transfers. This special interface will be discussed along with the internal Dual Access Memory (4K x 16) used to support the data exchanges between the CPU and the BIU Hybrid Set. The hybrid set's physical size and power requirements will be covered. This includes the present Double Eurocard the BIU function is presently being offered on.

Feria de Milán. Pabellón de maquinaria pesada

Directory of Open Access Journals (Sweden)

Covre, Gino

1960-04-01

Full Text Available Después de demoler el edificio destinado a las exposiciones de los adelantos y mejoras de la mecánica pesada, las autoridades Que rigen estas manifestaciones de la mecánica en Milán, Italia, se entregaron a un estudio de conjunto del problema que para ellos constituía la construcción de un pabellón que sustituyera al destruido y que, tanto por sus condiciones intrínsecas como por su aspecto estático y funcional, supliera ampliamente a su antecesor. El solar disponible constituía una amplia parcela aislada, y se pensó, en principio, en un cuerpo arquitectónico de dos plantas, una en semisótano y otra superior que constituiría la sala general de las exposiciones.

Interfacing the septa movement (DC motors) equipment to the PS control system and the MIL1553 bus

CERN Document Server

Dehavay, Claude

1995-01-01

Continuing the rejuvenation of the PS Control system , this application replaces the Single Transceiver Hybrid used to interface the Septa Movement Fquipment by a G64 system connected to the VME crate via the MIL1553 bus. This note explains the G64 hardware interface and details the standard message as defined in the Control Protocole for Power Converter, RF and Stepping Motor equipment.

Interfacing the septa movement (DC motor) equipment to the PS control system and the MIL1553 bus

CERN Document Server

Dehavay, Claude

1993-01-01

Continuing the rejuvenation of the PS Control system , it is planned to replace the Single Transceiver Hybrid used to interface the Septa Movement Equipment by a G64 system connected to the VME crate via the MIL1553 bus. This note explains the G64 hardware interface and details the standard message as defined in the Control Protocole for Power Converter, RF and Stepping Motor equipment.

Sõda ja rahu Lähis-Idas seestpoolt vaadatuna / Erkki Bahovski

Index Scriptorium Estoniae

Bahovski, Erkki, 1970-

2006-01-01

Rets. rmt.: Efraim Halevy. Man in the shadows. Inside the Middle East crisis with a man who led the Mossad. Weidenfeld&Nicolson : London, 2006. Iisraeli luure Mossadi kunagise juhi raamat Iisraeli diplomaatiast. Lisa: Raamat

Homefucking is Killing Prostitution / Taavi Eelmaa

Index Scriptorium Estoniae

Eelmaa, Taavi, 1971-

2008-01-01

Mis jääb vaatajale teatrietendusest meelde? Ilmus Kris Moori raamat "Homefucking is Killing Prostitution". Raamat sisaldab tekste ja Erki Lauri fotosid Von Krahli Teatri samanimelisest etendusest, mida kordagi ei mängitud

Rahvaliit : Henri Kaselo süüdistus on idiootsus / Jüri Saar

Index Scriptorium Estoniae

Saar, Jüri, 1946-

2008-01-01

Keskerakonna Tartumaa piirkonna esimeheks valitud Tartu linnavolinik Henri Kaselo kritiseeris teravalt Rahvaliitu kuuluvaid Tartumaa vallajuhte, kelle juhtimisstiil ja korruptiivne poliitika polevat nõukogude ajast muutunud

Vladimir Geenius Nabokov (1899-1977) / Toomas Raudam

Index Scriptorium Estoniae

Raudam, Toomas, 1947-

2003-01-01

Arvustus: Nabokov, Vladimir. Ada, ehk, Arm : ühe suguseltsi kroonika : [romaan] / tõlkinud Rein Saluri. Tallinn : Eesti Raamat, 2002. Ilmunud ka: Raudam, Toomas. Väike äratundmiste raamat. Tallinn : Eesti Keele Sihtasutus, 2006. Lk. 113-123

Analysis of a MIL-L-27502 lubricant from a gas-turbine engine test by size-exclusion chromatography

Science.gov (United States)

Jones, W. R., Jr.; Morales, W.

1983-01-01

Size exclusion chromatography was used to determine the chemical degradation of MIL-L-27502 oil samples from a gas turbine engine test run at a bulk oil temperature of 216 C. Results revealed a progressive loss of primary ester and additive depletion and the formation of higher molecular weight products with time. The high molecular weight products absorbed strongly in the ultraviolet indicating the presence of chromophoric groups.

Metal-organic framework MIL-101(Cr) as a sorbent of porous membrane-protected micro-solid-phase extraction for the analysis of six phthalate esters from drinking water: a combination of experimental and computational study.

Science.gov (United States)

Wang, Ting; Wang, Jian; Zhang, Conglu; Yang, Zhao; Dai, Xinpeng; Cheng, Maosheng; Hou, Xiaohong

2015-08-07

An attractive metal-organic framework (MOF) MIL-101(Cr) material was synthesized at the nanoscale and applied as a sorbent in the porous membrane-protected micro-solid-phase extraction (μ-SPE) device for the pre-concentration of phthalate esters (PAEs) in drinking water samples for the first time. Parameters influencing the extraction efficiency, such as the selection of sorbent materials, pH adjustment, the effect of salt, magnetic-stirring extraction time, the desorption solvent and the desorption time, were investigated. Under the optimum conditions, the limits of detection from gas chromatography-mass spectrometric analysis for PAEs varied from 0.004 to 0.02 μg L(-1). The linear ranges were from 0.1 to 50 μg L(-1) or from 0.2 to 50 μg L(-1) for the analytes with the relative standard deviations fluctuating from 0.8 to 10.9% (n = 5). The enrichment factors (EFs) for the target PAEs were varied from 143 to 187. MIL-101(Cr) exhibited remarkable advantages compared to activated carbon and MIL-100(Fe). On the other hand, the computational method was first used to predict the adsorption of MIL-101(Cr) towards PAEs. The molecular interactions and the free binding energies between MIL-101(Cr) and PAEs were observed and calculated in terms of the molecular modeling method. MIL-101(Cr) showed high potential in the analysis of PAEs at trace levels in drinking water. The computational result was consistent with the detected enrichment factors. The computational modeling accurately predicted the extraction efficiency of MOF-based material towards the target analytes. Therefore, the combination of experimental and computational study provided a new strategy on the trace contaminant analysis.

Magnetic solid-phase extraction of triazine herbicides from rice using metal-organic framework MIL-101(Cr) functionalized magnetic particles.

Science.gov (United States)

Liang, Li; Wang, Xinghua; Sun, Ying; Ma, Pinyi; Li, Xinpei; Piao, Huilan; Jiang, Yanxiao; Song, Daqian

2018-03-01

The metal-organic framework (MOF) functionalized magnetic graphene oxide/mesoporous silica composites (Fe 3 O 4 @SiO 2 -GO/MIL-101(Cr)) were synthesized and utilized as magnetic solid-phase extraction (MSPE) adsorbent for the extraction of seven triazine herbicides (terbuthylazine, secbumeton, terbumeton, atraton, atrazine, prometon and trietazine) in rice samples. Several experimental parameters, including type and volume of extraction solvent, amount of MIL-101(Cr), extraction time, volume of desorption solvent and desorption time were investigated and optimized. The limits of detection (LODs) of seven triazine herbicides obtained by using the proposed MSPE method combined with high performance liquid chromatography (HPLC) were in the range of 0.010-0.080µgkg -1 . The recoveries of the triazine herbicides in spiked rice samples ranged from of 83.9-103.5% with the relative standard deviations lower than 8.7%. The intra and inter-day (n = 6) precisions for all triazine herbicides at the spiked level of 100.0µgkg -1 were 1.4-5.9% and 2.6-7.8%, respectively. Copyright © 2017 Elsevier B.V. All rights reserved.

Another Look at the Draft Mil-Std-1540E Unit Random Vibration Test Requirements

Science.gov (United States)

Perl, E.; Peterson, A. J..; Davis, D.

2012-07-01

The draft Mil-Std-1540E has been updated to reflect lessons learned since its publication as an SMC Standard in 2008, [1], and an earlier Aerospace Corporation Technical Report released in 2006, [2]. This paper discusses the technical rationale supporting some of the unit random vibration test requirements to provide better insight into their derivation and application to programs. It is intended that these requirements be tailored for each program to reflect the customer risk profile. Several tailoring options are provided and a two phase test strategy is discussed to highlight its applicability to utilizing heritage hardware in new applications.

Viiv: sügis 1963-1973 : Viivi Luige luule jaapanlikkus / Külliki Kuusk

Index Scriptorium Estoniae

Kuusk, Külliki, 1975-

2007-01-01

Viivi Luige luulekogude "Taevaste tuul" (Tallinn : Eesti Raamat, 1966), "Lauludemüüja" (Tallinn : Eesti Raamat, 1968) ja "Hääl" (Tallinn : Perioodika, 1968) poeetikast. Uku Masingu ja Viivi Luige seotusest, jaapani luule mõjudest Viivi Luige loomingule

Atuação do pediatra nos primeiros mil dias da criança: a busca pela nutrição e desenvolvimento saudáveis

Directory of Open Access Journals (Sweden)

Antonio Jose Ledo Alves da Cunha

2015-12-01

Full Text Available Resumo Objetivos: Descrever o conceito dos primeiros mil dias, sua importância para a saúde e ações a serem implantadas, em especial pelos pediatras, para que a criança alcance nutrição e desenvolvimento saudáveis. Fonte dos dados: Revisão não sistemática nas bases SciELO, Lilacs, Medline, Scopus e Web of Science nos últimos dez anos com os termos mil dias, nutrição infantil, desenvolvimento infantil, infância, criança. Busca não sistemática na Internet de organizações que adotam o conceito dos mil dias e emitem recomendações sobre a saúde da criança. Síntese dos dados: Os primeiros mil dias vão da concepção até o fim do segundo ano de vida. É um importante período para intervenções que garantam nutrição e desenvolvimento saudáveis, que trarão benefícios em todo o ciclo de vida. As crianças devem receber alimentação adequada, por meio de nutrição pré-natal adequada, aleitamento materno exclusivo nos primeiros seis meses, adição de alimentos complementares adequados e continuação da amamentação até os dois anos. Face à condição de dependência absoluta de cuidados de um adulto, é fundamental que tenham um ambiente propício e acolhedor necessário para desenvolver laços fortes com seus cuidadores e lançar as bases para um desenvolvimento pleno e saudável. Conclusões: O pediatra, junto com outros profissionais, pode atuar na promoção de ações com ênfase no conceito dos primeiros mil dias que garantam a nutrição e o desenvolvimento saudáveis da criança. Focalizar ações nesse período poderá aumentar as chances de a criança ter uma vida saudável e produtiva no futuro, fortalecer famílias e comunidades e contribuir para quebrar o ciclo intergeracional da pobreza.

Interaction of methanol with the flexible metal-organic framework MIL-53(Fe) observed by inelastic neutron scattering

International Nuclear Information System (INIS)

Munn, Alexis S.; Ramirez-Cuesta, Anibal J.; Millange, Franck; Walton, Richard I.

2013-01-01

Highlights: • A spectroscopic signature of guest-induced swelling of a flexible MOF has been identified. • Librations of the linker contribute to pore opening of the MOF structure. • Complementary in situ powder XRD shows changes in long-range order during guest uptake. - Abstract: In situ powder X-ray diffraction and thermogravimetry show that the iron(III) carboxylate material MIL-53(Fe) expands in two steps upon exposure to methanol vapour to give a ‘half open’ phase and then a fully expanded structure; these correspond to the uptake of one and two molar equivalents of methanol, respectively. This knowledge allows interpretation of inelastic neutron scattering (INS) spectra, measured using TOSCA at ISIS, of the solid loaded with various amounts of water, methanol or d3-methanol (CD 3 OH), aided also by DFT simulation of INS spectra of the analogous MIL-53(Al) structure. The key signature of the expansion and contraction of the structure is the shift of bands in the 400 cm −1 region: these are assigned as due to the librations of the terephthalate rings, involving motions that result in distortion of the aromatic ring and a rocking motion of the aromatic ring about the bonds to the carboxylate groups

Desperaado ja mässumees / Märt Väljataga

Index Scriptorium Estoniae

Väljataga, Märt, 1965-

1997-01-01

Arvustus: Unamuno, Miguel de. Inimeste ja rahvaste traagilisest elutundest / tlk. Ruth Lias ; järelsõna Jüri Talvet. Tartu : Ilmamaa, 1996. (Avatud Eesti raamat); Camus, Albert. Mässav inimene / tlk. Lena Tomasberg. Tallinn : Vagabund, 1996. (Avatud Eesti raamat)

A Simple Vortex-Assisted Magnetic Dispersive Solid Phase Microextraction System for Preconcentration and Separation of Triazine Herbicides from Environmental Water and Vegetable Samples Using Fe₃O₄@MIL-100(Fe) Sorbent.

Science.gov (United States)

Nasrollahpour, Atefe; Moradi, Seyyed Ershad

2018-04-04

A vortex-assisted magnetic dispersive solid phase microextraction coupled with high-performance liquid chromatography has been developed for the extraction and determination of triazine herbicides by using magnetic metal organic frameworks [Fe₃O₄@MIL-100(Fe)] in environmental water and vegetable samples. The Fe₃O₄@MIL-100(Fe) composite has been characterized by using X-ray diffraction spectroscopy, tunneling electron microscopy, thermogravimetric measurement, and Brunauer-Emmett-Teller analysis. The method is based on the sorption of triazine herbicides on Fe₃O₄@MIL-100(Fe) because of the complex formation between iron oxide nanoparticles and triazine herbicides beside π-π interactions between organic parts of Fe₃O₄@MIL-100(Fe) and triazine herbicides. The experimental parameters for the preconcentration of triazine herbicides, such as the type and volume of the eluent, pH, time of the sorption and desorption, and the amount of the sorbent, were optimized. Under the optimized conditions, the method was linear over the concentration range of 0.0061 to 70 ng/mL for each triazine herbicide, and the correlation coefficients ranged from 0.9988 to 0.9997. The limit of detection of the method at a signal-to-noise ratio of 3 was 2.0 to 5.3 ng/mL. The relative standard deviations for inter- and intraday assays were in the range of 5.8 to 10.2% and 3.8 to 6.3%, respectively.

Using the Auditory Hazard Assessment Algorithm for Humans (AHAAH) With Hearing Protection Software, Release MIL-STD-1474E

Science.gov (United States)

2013-12-01

unfolding.” Invited article in NHCA’s Spectrum. 1997 MIL-STD-1474D. (1997). “Department of defense design criteria. Noise limits,” http...Passenger Safety, Washington, DC. Price, G. R. (1997). “Understanding hazard from intense sounds.” Invited seminar to Audiology Department, University of...Putting theory into practice.” In H. M. Borchgrevink (Ed.), Hearing and hearing prophylaxis, Scandinavian Audiology Supplement 16 (pp. 111-121

PPy@MIL-100 Nanoparticles as a pH- and Near-IR-Irradiation-Responsive Drug Carrier for Simultaneous Photothermal Therapy and Chemotherapy of Cancer Cells.

Science.gov (United States)

Zhu, Yu-Da; Chen, Su-Ping; Zhao, Huan; Yang, You; Chen, Xiao-Qin; Sun, Jing; Fan, Hong-Song; Zhang, Xing-Dong

2016-12-21

A medical nanoplatform with small size, low cost, biocompatibility, good biodegradability, and, in particular, multifunctionality has attracted much attention in the exploration of novel therapeutic methodologies. As an emerging material of self-assembled porous structure, metal-organic frameworks (MOFs) have high expectations because of their special properties compared to traditional porous materials. Therefore, integration of MOFs and functional materials is leading to the creation of new multifunctional composites/hybrids. Photothermal therapy (PTT), using near-IR (NIR) laser-absorbing nanomaterials as PTT agents, has shown encouraging therapeutic effects to photothermally ablate tumors. However, the most of widely used PTT agents are inorganic materials and nonbiodegradable. Herein, uniform polypyrrole (PPy) nanoparticles (NPs) with good biodegradability were synthesized by a microemulsion method. The PPy NPs were further coated with the mesoporous iron-based MOF structure MIL-100 by interaction between PPy NPs and MIL-100 precursors at room temperature. As a multifunctional nanoplatform, an anticancer drug could easily be loaded into the mesopores of the MIL-100 shell. The PPy core, as an organic photothermal agent, is able to photothermally ablate cancer cells and improve the efficacy of chemotherapy under NIR irradiation. The composites showed an outstanding in vivo synergistic anticancer capacity. Our work could encourage further study in the construction of a synergetic system using MOFs and organic PTT agents.

Elucidating the Vibrational Fingerprint of the Flexible Metal–Organic Framework MIL-53(Al) Using a Combined Experimental/Computational Approach

Science.gov (United States)

2018-01-01

In this work, mid-infrared (mid-IR), far-IR, and Raman spectra are presented for the distinct (meta)stable phases of the flexible metal–organic framework MIL-53(Al). Static density functional theory (DFT) simulations are performed, allowing for the identification of all IR-active modes, which is unprecedented in the low-frequency region. A unique vibrational fingerprint is revealed, resulting from aluminum-oxide backbone stretching modes, which can be used to clearly distinguish the IR spectra of the closed- and large-pore phases. Furthermore, molecular dynamics simulations based on a DFT description of the potential energy surface enable determination of the theoretical Raman spectrum of the closed- and large-pore phases for the first time. An excellent correspondence between theory and experiment is observed. Both the low-frequency IR and Raman spectra show major differences in vibrational modes between the closed- and large-pore phases, indicating changes in lattice dynamics between the two structures. In addition, several collective modes related to the breathing mechanism in MIL-53(Al) are identified. In particular, we rationalize the importance of the trampoline-like motion of the linker for the phase transition. PMID:29449906

A combination of computational-experimental study on metal-organic frameworks MIL-53(Al) as sorbent for simultaneous determination of estrogens and glucocorticoids in water and urine samples by dispersive micro-solid-phase extraction coupled to UPLC-MS/MS.

Science.gov (United States)

Gao, Guihua; Li, Sijia; Li, Shuo; Wang, Yudan; Zhao, Pan; Zhang, Xiangyu; Hou, Xiaohong

2018-04-01

In this work, computational and experimental methods were used to study the adsorption of estrogens and glucocorticoids on metal-organic frameworks (MOFs). Computer-aided molecular simulation was applied to predict the adsorption of eight analytes on four MOFs (MIL-101(Cr), MIL-100(Fe), MIL-53(Al), and UiO-66(Zr)) by examining molecular interactions and calculating free binding energies. Subsequently, the four water-stable MOFs were synthesized and evaluated as adsorbents for the target hormones in aqueous solution. As the MOF exhibiting the highest adsorption capacity in both computations and experiments, MIL-53(Al) was chosen as a sorbent to develop a dispersive micro-solid-phase extraction procedure coupled to ultra-performance liquid chromatography tandem mass spectrometry for simultaneous determination of the target analytes in water and human urine samples. Experimental parameters affecting the extraction recoveries, including pH, ionic strength, MIL-53(Al) amount, extraction time, desorption time, and desorption solvent, were optimized. The optimized method provided a linear range of 0.005025-368.6μg/L with good correlation coefficients (0.9982 ≤ r 2 ≤ 0.9992), and limits of detection (S/N = 3) and quantification (S/N = 10) of 0.0015-1.0μg/L and 0.005-1.8μg/L, respectively. The analyte recoveries were in the range of 80.6-98.4% in water samples and 88.4-93.2% in urine samples. Furthermore, MIL-53(Al) showed good stability over 10 extraction cycles (RSD extraction efficiencies for MOFs and targets, providing new directions for the development and utilization of MOFs. Copyright © 2017 Elsevier B.V. All rights reserved.

As mulheres em sua família: Mesopotâmia, 2º milênio a.C.

Directory of Open Access Journals (Sweden)

Brigitte Lion

2005-12-01

Full Text Available As fontes cuneiformes do 2º milênio a.C. fornecem uma abundante documentação sobre as mulheres mesopotâmicas. A partir dos códigos de leis e de numerosos arquivos privados, é possível reconstituir a vida das mulheres comuns em seu quadro familiar. Este artigo analisa a condição feminina através dos diferentes costumes matrimoniais, da situação econômica das mulheres, bem como de suas atividades no interior do lar.

Kõik mehed on vist sead? / Kristel Kirss

Index Scriptorium Estoniae

Kirss, Kristel, 1967-

2003-01-01

Arvustus: O'Brien, Edna. Maatüdrukud : [romaan] / tõlkinud [ja järelsõna:] Sirje Leol. Tallinn : Eesti Raamat, c2002 ; O'Brien, Edna. Üksildane tüdruk : [triloogia 2. osa] ; Tüdrukud abielutaevas : [triloogia 3. osa] / tõlkinud Sirje Leol. Tallinn : Eesti Raamat, 2003

Setu maffia Hunt / Andres Hunt ; interv. Paavo Kangur

Index Scriptorium Estoniae

Hunt, Andres, 1966-

2008-01-01

ASi Tallink Grupp juhatuse aseesimees Tallinki uuest kruiisilaevast Baltic Princess, isiklikust elust, vabast ajast ja harrastustest, Põlvamaa maakodust, haridusteest ja senisest karjäärist, Silja Line'i ostutehingust, Tallinki aktsiate ostmisest

Filmiloo annus mirabilis 1927 ja eesti mängufilm. Taastatud "Noored kotkad" pidulikel kontsertesitlustel ja DVD-levis / Jaak Lõhmus

Index Scriptorium Estoniae

Lõhmus, Jaak

2008-01-01

Theodor Lutsu tummfilm "Noored kotkad" (1927). Filmile eelnenud ajast, filmi valmimisest, kaastegijatest ning toetajatest. Filmi publikuhuvist, kinoorkestritest, kes filmi erinevates kinodes saatsid. Filmi kajastamisest ajakirjanduses 1927. aastal. Artikli lõpus Theodor Lutsust

Polydimethylsiloxane/MIL-100(Fe) coated stir bar sorptive extraction-high performance liquid chromatography for the determination of triazines in environmental water samples.

Science.gov (United States)

Lei, Yun; Chen, Beibei; You, Linna; He, Man; Hu, Bin

2017-12-01

Polydimethylsiloxane (PDMS)/MIL-100(Fe) coated stir bar was prepared by sol gel technique, and good preparation reproducibility was achieved with relative standard deviations (RSDs) ranging from 2.6% to 7.5% (n=7) and 3.6% to 10.8% (n=7) for bar-to-bar and batch-to-batch, respectively. Compared with commercial PDMS coated stir bar (Gerstel) and PEG coated stir bar (Gerstel), the prepared PDMS/MIL-100(Fe) stir bar showed better extraction efficiency for target triazines compounds. It also exhibited relatively fast extraction/desorption kinetics and long lifespan. Based on it, a method of PDMS/MIL-100(Fe) coated stir bar sorptive extraction (SBSE)-high performance liquid chromatography-ultraviolet detector (HPLC-UV) was developed for the determination of six triazines (simazine, atrazine, prometon, ametryn, prometryne and prebane) in environmental water samples. Several parameters affecting SBSE of six target triazines including extraction time, stirring rate, sample pH, ionic strength, desorption solvent and desorption time were investigated. Under the optimal experimental conditions, the limits of detection (LODs, S/N=3) were found to be in the range of 0.021-0.079μgL -1 . The repeatability RSDs were in the range of 2.3-6.3% (n=7, c=0.5μgL -1 ) and the enrichment factors (EFs) ranged from 51.1 to 102-fold (theoretical EF was 200-fold). The proposed method was applied to the analysis of target triazines in environmental water samples, with recoveries of 98.0-118% and 94.0-107% for spiked East Lake water and local pond water samples, respectively. Copyright © 2017. Published by Elsevier B.V.

Post-modified acid-base bifunctional MIL-101(Cr) for one-pot deacetalization-Knoevenagel reaction

Energy Technology Data Exchange (ETDEWEB)

Mu, Manman [Tianjin University, School of Science (China); Yan, Xilong; Li, Yang; Chen, Ligong, E-mail: lgchen@tju.edu.cn [Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) (China)

2017-04-15

A novel and convenient approach for the construction of the bifunctional MIL-101 material bearing sulfonic acid and amino groups was established via the post-synthetic modification. This material possesses high BET surface area (1446 m{sup 2}/g) and large pore volume (0.77 cm{sup 3}/g). Significantly, this material could serve as a bifunctional heterogeneous catalyst and was initially employed for one-pot deacetalization-Knoevenagel reaction, exhibiting excellent catalytic performance (yield 99.74%). More importantly, it can be easily recovered and reused at least three times. Finally, our proposed catalytic mechanism indicated that amino and the sulfonic acid groups played a synergistic effect on this one-pot deacetalization-Knoevenagel reaction.

Meie avangardismi löögirühm / Jüri Hain

Index Scriptorium Estoniae

Hain, Jüri, 1941-

2005-01-01

Näitus "Eesti Kunstnikkude Ryhm" Tartu Kunstimuuseumis 21. I-20. III. 1923. a. lõpul asutatud rühmitusest, EKRi näitusetegevusest, 1928. a. ilmunud almanahhist "Uue Kunsti Raamat" (kujundaja Märt Laarman), mille kohta ajakirjas "Die Form" ilmus Theo van Doesburgi artikkel "Raamat ja selle kujundus"

Kadunud ruumi otsimas / Jan Kaus

Index Scriptorium Estoniae

Kaus, Jan, 1971-

2002-01-01

Lee Milleri fotode (26. II-21. IV) ja Louise Bourgeois' skulptuuride (26. II-5. V) näitusest Helsingi Tennispalatsis. L. Milleri näitus on etendus ajast, L. Bourgeois' installatsioonid - etendus ruumist

Solid-phase extraction with the metal-organic framework MIL-101(Cr) combined with direct analysis in real time mass spectrometry for the fast analysis of triazine herbicides.

Science.gov (United States)

Li, Xianjiang; Xing, Jiawei; Chang, Cuilan; Wang, Xin; Bai, Yu; Yan, Xiuping; Liu, Huwei

2014-06-01

MIL-101(Cr) is an excellent metal-organic framework with high surface area and nanoscale cavities, making it promising in solid-phase extraction. Herein, we used MIL-101(Cr) as a solid-phase extraction packing material combined with fast detection of direct analysis in real time mass spectrometry (DART-MS) for the analysis of triazine herbicides. After systematic optimization of the operation parameters, including the gas temperature of DART, the moving speed of the 1D platform, solvent for desorption, amount of MIL-101(Cr) extraction time, eluent volume and salt concentration, this method can realize the simultaneous detection of five kinds of triazine herbicides. The limits of detection were 0.1∼0.2 ng/mL and the linear ranges covered more than two orders of magnitude with the quantitation limits of 0.5∼1 ng/mL. Moreover, the developed method has been applied for the analysis of lake water samples and the recoveries for spiked analytes were in the range of 85∼110%. These results showed that solid-phase extraction with metal-organic frameworks is an efficient sample preparation approach for DART-MS analysis and could find more applications in environmental analysis. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Smooth and rapid microwave synthesis of MIL-53(Fe) including superparamagnetic γ-Fe2O3 nanoparticles

Science.gov (United States)

Wengert, Simon; Albrecht, Joachim; Ruoss, Stephen; Stahl, Claudia; Schütz, Gisela; Schäfer, Ronald

2017-12-01

MIL-53(Fe) linked to superparamagnetic γ-Fe2O3 nanoparticles was created using time-efficient microwave synthesis. Intermediates as well as the final product have been characterized by Dynamic Light Scattering (DLS), Infrared Spectroscopy (FTIR) and Thermal Gravimetric Analysis (TGA). It is found that this route allows the production of Fe nanoparticles with typical sizes of about 80 nm that are embedded inside the metal-organic structures. Detailed magnetization measurements using SQUID magnetometry revealed a nearly reversible magnetization loop indicating essentially superparamagnetic behavior.

El uso del hierro en la Casa Milá de Barcelona

Directory of Open Access Journals (Sweden)

Vila Rodríguez, Rafael

1990-08-01

Full Text Available The materials and construction systems, even the conception of the general structure, were for Gaudí no more than mediums at the service of the formal and spatial expression of his architectural imagination. Sometimes, the use of certain materials was indiscriminate or without sufficient guarantees. The Casa Milá is a good example. The use of laminated iron in the Pedrera, which allowed Gaudí to conceive a story independent of the façades —wall-screens of stone which seem to defy the law of gravity—, have been, at the same time, the main cause of the deterioration of these façades. In the case of the structure, the conceptual solution based on the use of iron has responded well to the static needs. This has not occured with the solutions —no less ingeneous but too improvlsed and risky— foreseen, also based on iron, to hold up the façade. Here, the material, subjected to the effects of humidity —favored by the form given to the stone—, has not resisted the passage of time very well.

Los materiales y los sistemas constructivos, incluso la concepción de la estructura general, no eran para Gaudí más que medios al servicio de la expresividad formal y espacial de su imaginativa arquitectura. A veces, la utilización de algunos materiales se hizo de forma indiscriminada o sin suficientes garantías. La Casa Milá es un buen ejemplo. La utilización del hierro laminado en la Pedrera, que permitió a Gaudí concebir una planta libre independiente de las fachadas —muros-cortina de piedra que parecen desafiar la ley de la gravedad—, ha sido, al mismo tiempo, la causa principal del deterioro de estas fachadas. En el caso de la estructura, la solución conceptual basada en el uso del hierro ha respondido bien a las solicitudes estáticas. No ha ocurrido así con las soluciones —no menos ingeniosas pero excesivamente improvisadas y arriesgadas— previstas, también en base al hierro, para la sustentación de la fachada. Aqu

Tšetšeenia hunt Dzhohhar / Valter Toots

Index Scriptorium Estoniae

Toots, Valter

2007-01-01

Tšetšeenia presidendist Dzhohhar Dudajevist (1944-1996). Ilmunud on ka raamat : Dudajeva, Alla. Miljoni esimene : raamat Dzhohhar Dudajevist. Tartu : Ilmamaa, 2004. Järgneb: 16. mai ; 23. mai ; 30. mai ; 06. juuni ; 13. juuni ; 20. juuni ; 27. juuni ; 4. juuli ; 11. juuli ; 18. juuli ; 25. juuli ; 1. aug. ; 6. aug.

Рождение манифеста о независимости Эстонии / Аго Паюр

Index Scriptorium Estoniae

Паюр, Аго, 1962-

2006-01-01

1918. aasta iseseisvusmanifesti koostamise ajast, teksti autoritest, manifesti väljakuulutamise katsetest, manifesti väljakuulutamisest Pärnus, Viljandis, Tallinnas, Paides, Rakveres ja mujal, manifesti teksti trükkimisest. Lisatud manifesti tekst vene keeles

4 veebirakendust uue keele õppeks / Vaiko Mäe

Index Scriptorium Estoniae

Mäe, Vaiko

2015-01-01

Uue keele omandamine on muutunud tänu mobiilirakendustele kättesaadavamaks, interaktiivsed keeleõppematerjalid võimaldavad õpet sõltumata ajast. Veebiportaal http://educatorstechnology.com on järjestanud parimad veebilehed uue keele õppeks

A new indium metal-organic 3D framework with 1,3,5-benzenetricarboxylate, MIL-96 (In), containing μ 3-oxo-centered trinuclear units and a hexagonal 18-ring network

International Nuclear Information System (INIS)

Volkringer, Christophe; Loiseau, Thierry

2006-01-01

A new indium trimesate In 12 O(OH) 12 ({OH} 4 ,{H 2 O} 5 )[btc] 6 .∼31H 2 O, called MIL-96 (btc = 1,3,5-benzenetricarboxylate or trimesate species) was hydrothermally synthesized under mild condition (210 deg. C, 5 h) in the presence of trimethyl 1,3,5-benzenetricarboxylate in water and characterized by single-crystal X-ray diffraction technique. The MIL-96 (In) structure exhibits a three-dimensional metal-organic framework containing isolated trinuclear μ 3 -oxo-bridged indium clusters and infinite chains of InO 4 (OH) 2 and InO 2 (OH) 3 (H 2 O) octahedra generating a hexagonal network based on 18-membered ring. The two types of indium entities are connected to each other through the trimesate species which induce corrugated chains of indium octahedra, linked via μ 2 -hydroxo bonds with the specific -cis-cis-trans- sequence. The 3D framework of MIL-96 reveals three kind of cavities (two of them have estimated ∼ 400 A 3 volumes), in which are encapsulated free water molecules. The latter species are removed upon heating at 150 deg. C

Sõber raamat

Index Scriptorium Estoniae

1997-01-01

Raamatukaupluses EURO Publications pakutavate raamatute tutvustus. James Davidson, The Complete Home Lightning Book, 1997 Inglismaa ; Candace Ord Manroe. Uncluttered : Storage Room by Room ; Ruth Pretty. The Ultimate Interior Designer, Inglismaa 1997 ; Judith ja Martin Miller. Period Finishes and Effects, Londoni 1992 ; Suzanne Slesin, Stafford Cliff, Daniel Rozensztroch. Spanish Style, esmatrükk 1990.

DEVELOPMENT OF A WELDING PROCEDURE FOR MIL A 46100 ARMOR STEEL JOINTS USING GAS METAL ARC WELDING

OpenAIRE

DAVID MAZUERA ROBLEDO; JOHN ALBERTO SUÁREZ GÓMEZ; JORGE ENRIQUE GIRALDO BARRADA

2011-01-01

Se desarrolló un procedimiento de soldadura (WPS) para unir láminas de acero para blindaje bajo especificación MIL A46100 usando el proceso GMAW, el cual fue calificado mediante ensayos mecánicos y no destructivos (NDT) de acuerdo con los requerimientos de códigos militares. Los resultados obtenidos fueron comparados con procedimientos de soldadura para este material realizados con el proceso SMAW. Los resultados obtenidos mostraron que el WPS diseñado es una opción viable para la soldadura d...

Briti meremehed rääkisid vanglaõudustest / Arko Olesk

Index Scriptorium Estoniae

Olesk, Arko, 1981-

2007-01-01

Ilmunud ka: Postimees : na russkom jazõke, 10. apr. 2007, lk. 13. Iraanis väidetava piiririkkumise eest vahistatud Briti 14 meremehe ja ainsa naise Faye Turney vanglas veedetud ajast. Lisa: Briti-Iraani tüli

Ekspertarvamus Eesti karistusseadustiku üldosa seaduse eelnõu kohta / Anton van Kalmthout ; tõlkinud Egle Uri

Index Scriptorium Estoniae

Kalmthout, Anton van

1998-01-01

Süütegude liikidest, toimepanemise ajast, õigusvastasust välistavatest asjaoludest ning karistuste süsteemist karistusseadustiku üldosa seaduse eelnõus. Tilburgi (Holland) ülikooli kriminaalõiguse õppejõu, õigusteaduse doktori Anton van Kalmthouti kommentaar

Ammunition Peculiar Equipment (APE) 1995, NIR Propellant Analyzer, to MIL-STD-398, Military Standard Shields, Operational for Ammunition Operations, Criteria for Design of and Tests for Acceptance

National Research Council Canada - National Science Library

2003-01-01

... (SJMAC-DEM) to test the Ammunition Peculiar Equipment (APE) 1995 NIR Propellant Analyzer, to MIL-STD-398, "Military Standard Shields, Operational for Ammunition Operations, Criteria for Design of and Tests for Acceptance...

Grate Pallet 8232 (GP-8232) Vehicle Pallet, Evaluation Tests MIL-STD-1660, "Design Criteria for Ammunition Unit Loads" and TP-94-01 (REV 1), "Transportability Testing Procedures"

National Research Council Canada - National Science Library

Barickman, Philip

2003-01-01

.... The testing was conducted for informational purposes only. The GP-8232 Vehicle Pallet was evaluated by the testing procedures set forth in MIL-STD-1660 and TP-94-01 (Rev. 1) testing procedures...

DVD. Aare Ermel tutvustab : "Rome : The Complete First Season" / Aare Ermel

Index Scriptorium Estoniae

Ermel, Aare, 1957-2013

2006-01-01

6 DVD-na on saadaval 12-osaline ajalooline kostüümidraama - seriaal Rooma impeeriumi ajast "Rooma" ("Rome"), mille tootsid aastail 2005-2006 Ameerika tootja Home Box Office (HBO) ja inglaste BBC. Levitab Home Box Office, Inc

Gas Metal Arc Welding Process Modeling and Prediction of Weld Microstructure in MIL A46100 Armor-Grade Martensitic Steel

Science.gov (United States)

2013-06-01

earlier in Fig. 4(a) to construct the corresponding CCT diagram , Fig. 5. The diagram displayed in Fig. 5 is obtained under particular continuous-cooling...TTT and CCT diagrams are necessary, but not sufficient, input for a phase volume-fraction determination procedure. That is, in addition to knowing the...fraction of bainite to the instantaneous temperature for the MIL A46100 HAZ section which was described using TTT and CCT diagrams displayed in Fig. 4(a

Mida loed sina? / Indrek Hargla

Index Scriptorium Estoniae

Hargla, Indrek, pseud., 1970-

2007-01-01

Tutvustus: Pérez-Reverte, Arturo. Dumas̀ klubi ehk Richelieu vari. Tallinn : Varrak, 2006 ; Belials, Veiko. Jumalate vandenõu. Tallinn : Varrak, 2006 ; Põder, Rein. Eike. Tallinn : Eesti Raamat, 2006 ; Reeve, Philip. Kuldseeklid. Tallinn : Tiritamm, 2006 ; Martin, George R. R. Troonide mäng. Esimene raamat / tlk. Mario Kivistik. Tallinn : Varrak, 2006. (Jää ja tule laul) (F-sari)

Ajamasina müra saatel / Tõnu Kaalep

Index Scriptorium Estoniae

Kaalep, Tõnu, 1966-

2000-01-01

Ajahetke tähistavast arhitektuurist, monumendist: Millennium Dome'ist Londonis (arhitekt Richard Rogers), Leonardo Meigase Vabaduse väljaku valgusinstallatsioonist. Oma ajast väljas olevast arhitektuurist: Kristiine keskusest, Ilmarise elamukvartalist. Puitlinna taastamisest sajandialguse kujul Kalamajas. 15 illustratsiooni

Exsolution of Iron-Titanium Oxides in Magnetite in Miller Range (MIL) 03346 Nakhlite: Evidence for Post Crystallization Reduction in the Nakhlite Cumulate Pile

Science.gov (United States)

Righter, Kevin; Keller, L. P.; Rahman, Z.; Christoffersen, R.

2012-01-01

MIL 03346 is one of the most mesostasis-rich nakhlites [1] and thought to have equilibrated at oxygen fugacities near the fayalite-magnetite-quartz oxygen (FMQ) buffer ([2,3]). Studies of FeTi oxides in nakhlites have led to additional constraints on their equilibration temperatures and fO2s [4,5,6,7]. Comparison of these results to fO2s calculated for shergottites indicates that nakhlites are among the most oxidized samples from the martian meteorite suite [2]. The mesostasis of MIL 03346 contains skeletal titanomagnetite. Several scientists noticed several years ago (e.g. [8]) that this titanomagnetite contains very fine oxidation-driven exsolution lamellae (Figure 1). However, the lamellae are so small that they cannot be characterized by electron microprobe analysis (EMPA). Here we select several areas for focused ion beam (FIB) extraction, prepare transmission electron microscopy (TEM) foils, and identify and analyze the lamellae using TEM at the Johnson Space Center (JSC). The resulting analyses are combined with previous work on nakhlites to interpret the thermal and oxidation history of this meteorite group.

Maaväline lind Mark Raidpere / Fagira D. Morti

Index Scriptorium Estoniae

Fagira D. Morti, pseud., 1974-

2009-01-01

Soome Vabariigi president Tarja Halonen andis 28. veebruaril 2009. aastal Kumu Kunstimuuseumis videokunstnik Mark Raidperele üle Ars Fennica kunstipreemia. Meenutusi kunstniku EHI-s õppimise ajast, esimese näituse "Ilo" avamisest Vaal galeriis. Mark Raidpere loomingu mõistmisest

"Jumalale meelepärane seletus ehk mõnede südametunnistuse-küsimuste teoloogiline deduktsioon" : vaimulik vs ilmalik 17. sajandi Tallinnas / Lea Kõiv

Index Scriptorium Estoniae

Kõiv, Lea

2008-01-01

Tallinna sisepingetest 17. sajandil. Linnavõimu ja vaimulike vahelisest konfliktist 1662. aastal. Vaimulike poolt koostatud kirjalikust läkitusest Tallinna Raele. Rae reageeringust deduktsioonile. Konflikti ajast ja oludest. Tallinna kirikukorraldusest 16.-17. sajandil. Ilmalike võimude ja kiriku vahekorrast.

Multiple Nebular Gas Reservoirs Recorded by Oxygen Isotope Variation in a Spinel-rich CAI in CO3 MIL 090019

Science.gov (United States)

Simon, J. I.; Simon, S. B.; Nguyen, A. N.; Ross, D. K.; Messenger, S.

2017-01-01

We conducted NanoSIMS O-isotopic imaging of a primitive spinel-rich CAI spherule (27-2) from the MIL 090019 CO3 chondrite. Inclusions such as 27-2 are proposed to record inner nebula processes during an epoch of rapid solar nebula evolution. Mineralogical and textural analyses suggest that this CAI formed by high temperature reactions, partial melting, and condensation. This CAI exhibits radial O-isotopic heterogeneity among multiple occurrences of the same mineral, reflecting interactions with distinct nebular O-isotopic reservoirs.

Maria Listra teeb oma häälega tööd, et teada, kuidas “instrument” töötab / interv. Kristjan Roos

Index Scriptorium Estoniae

Listra, Maria, 1989-

2012-01-01

Maria Listra on Eesti muusikasõpradele teada juba sellest ajast, kui ta oli kolmeaastane. Kuigi praegu tegutseb lauljatar Londonis, ei ole ta unustanud ka oma kodumaad. Just täna alustab ta keelpillikvartetiga Prezioso kontserdituuri “Vaid see on armastus”

USA-s jõudis eetrisse ajalooline suurseriaal "Rooma" / Liivi Shein

Index Scriptorium Estoniae

Šein, Liivi

2005-01-01

11-osaline ajalooline kostüümidraama - seriaal Rooma impeeriumi ajast "Rooma" valmis koostöös Ameerika tootjaga Home Box Office (HBO) BBC-ga. Stsenaariumiga töötas viis kirjanikku, lavastas seitse režissööri

Jalgrattur Sigvard Kukk : naisi tuleks lilledega loopida / Andres Kalvik

Index Scriptorium Estoniae

Kalvik, Andres, 1982-

2007-01-01

Kalev Chocolate Teami kuuluvad jalgratturid Mart Ojavee ja Priit Prous koos elukaaslaste Fia Metsamägi ja Kaia-Liia Ilumetsaga räägivad paarisuhtest olukorras, kui mees enamiku ajast välismaal viibib. Lisa: Enamik rattureid vahetab spordist loobudes naist

Turumajandus on käkitegu, aga püüdke demokraatiat ehitada! / Lauri Linnamäe

Index Scriptorium Estoniae

Linnamäe, Lauri

2008-01-01

Postkommunistlike riikide vastu huvi tundva majandusteadlase Anders Aslundi raamatust "How capitalism was built", mis annab põhjaliku ja süstemaatilise ülevaate ajast ja protsessidest, mis jäävad Nõukogude Liidu lagunemise ja tänapäeva vahele

Application of novel metal organic framework, MIL-53(Fe) and its magnetic hybrid: For removal of pharmaceutical pollutant, doxycycline from aqueous solutions.

Science.gov (United States)

Naeimi, Shakiba; Faghihian, Hossein

2017-07-01

As a pharmaceutical pollutant, doxycycline causes contamination when enters into the environment. In this research MIL-53(Fe), and its magnetic hybrid MIL-53(Fe)/Fe 3 O 4 were synthesized and employed for removal of doxycycline from aqueous solutions. The adsorbents were characterized by XRD, SEM, BET, FTIR, EDAX, VSM and TG-DTG technique. The effect of different variables such as DOC concentration, pH, contacting time, and adsorbent dose on the removal efficiency was studied and under optimized conditions the adsorption capacity of 322mgg -1 was obtained. The adsorption process was kinetically fast and the equilibration was attained within 30min. The used adsorbent was easily separated from the solution by applying external magnetic field. The regenerated adsorbent retained most of its initial capacity after six regeneration steps. The effect of ionic strength was studied and it was indicated that removal of doxycycline from salt-containing water with moderate ionic strengths was quite feasible. Langmuir, Freundlich, Tempkin and Dubinin-Redushkevich isotherms were employed to describe the nature of adsorption process. The sorption data was well interpreted by the Longmuir model. Copyright © 2017 Elsevier B.V. All rights reserved.

Metal-organic framework MIL-101 as sorbent based on double-pumps controlled on-line solid-phase extraction coupled with high-performance liquid chromatography for the determination of flavonoids in environmental water samples.

Science.gov (United States)

Liu, Yue; Hu, Jia; Li, Yan; Li, Xiao-Shuang; Wang, Zhong-Liang

2016-10-01

A novel method with high sensitivity for the rapid determination of chrysin, apigenin and luteolin in environment water samples was developed by double-pumps controlled on-line solid-phase extraction (SPE) coupled with high-performance liquid chromatography (HPLC). In the developed technique, metal organic framework MIL-101 was synthesized and applied as a sorbent for SPE. The as-synthesized MIL-101 was characterized by scanning electron microscope, X-ray diffraction spectrometry, thermal gravimetric analysis and micropore physisorption analysis. The MIL-101 behaved as a fast kinetics in the adsorption of chrysin, apigenin and luteolin. On-line SPE of chrysin, apigenin and luteolin was processed by loading a sample solution at a flow rate of 1.0 mL/min for 10 min. The extracted analytes were subsequently eluted into a ZORBAX Bonus-RP analytical column (25 cm long × 4.6 mm i.d.) for HPLC separation under isocratic condition with a mobile phase (MeOH: ACN: 0.02 M H 3 PO 4 = 35:35:30) at a flow rate of 1.0 mL/min. Experimental conditions, including ionic strength, sample pH, sample loading rates, sample loading time and desorption analytes time, were further optimized to obtain efficient preconcentration and high-precision determination of the analytes mentioned above. The method achieved the merits of simplicity, rapidity, sensitivity, wide linear range and high sample throughput. The possible mechanism for the adsorption of flavonoids on MIL-101 was proposed. The developed method has been applied to determine trace chrysin, apigenin and luteolin in a variety of environmental water samples. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Low-temperature binding of NO adsorbed on MIL-100(Al)-A case study for the application of high resolution pulsed EPR methods and DFT calculations.

Science.gov (United States)

Mendt, Matthias; Barth, Benjamin; Hartmann, Martin; Pöppl, Andreas

2017-12-14

The low-temperature binding of nitric oxide (NO) in the metal-organic framework MIL-100(Al) has been investigated by pulsed electron nuclear double resonance and hyperfine sublevel correlation spectroscopy. Three NO adsorption species have been identified. Among them, one species has been verified experimentally to bind directly to an 27 Al atom and all its relevant 14 N and 27 Al hyperfine interaction parameters have been determined spectroscopically. Those parameters fit well to the calculated ones of a theoretical cluster model, which was derived by density functional theory (DFT) in the present work and describes the low temperature binding of NO to the regular coordinatively unsaturated Al 3+ site of the MIL-100(Al) structure. As a result, the Lewis acidity of that site has been characterized using the NO molecule as an electron paramagnetic resonance active probe. The DFT derived wave function analysis revealed a bent end-on coordination of the NO molecule adsorbed at that site which is almost purely ionic and has a weak binding energy. The calculated flat potential energy surface of this species indicates the ability of the NO molecule to freely rotate at intermediate temperatures while it is still binding to the Al 3+ site. For the other two NO adsorption species, no structural models could be derived, but one of them is indicated to be adsorbed at the organic part of the metal-organic framework. Hyperfine interactions with protons, weakly coupled to the observed NO adsorption species, have also been measured by pulsed electron paramagnetic resonance and found to be consistent with their attribution to protons of the MIL-100(Al) benzenetricarboxylate ligand molecules.

Synthesis of iron-based metal-organic framework MIL-53 as an efficient catalyst to activate persulfate for the degradation of Orange G in aqueous solution.

Science.gov (United States)

Pu, Mengjie; Guan, Zeyu; Ma, Yongwen; Wan, Jinquan; Wang, Yan; Brusseau, Mark L; Chi, Haiyuan

2018-01-05

A series of MIL-53(Fe) materials were synthesized using a solvothermal method under different temperature and time conditions and were used as catalysts to activate persulfate and degrade Orange G (OG). Influences of the above conditions on the crystal structure and catalytic behavior were investigated. Degradation of OG under different conditions was evaluated, and the possible activation mechanism was speculated. The results indicate that high synthesis temperature (larger than 170 °C) leads to poor crystallinity and low catalytic activity, while MIL-53(Fe) cannot fully develop at low temperature (100 or 120 °C). The extension of synthesis time from 5 h to 3 d can increase the crystallinity of the samples, but weakened the catalytic activity, which was caused by the reduction of BET surface area and the amount of Fe (II)-coordinative unsaturated sites. Among all the samples, MIL-53(Fe)-A possesses the best crystal structure and catalytic activity. In optimal conditions, OG can be totally decolorized after degradation for 90 min, and a removal rate of 74% for COD was attained after 120 min. The initial solution pH had great influence on OG degradation, with the greatest removal in acidic pH environment. ESR spectra showed that sulfate radical (SO 4 - ·), hydroxyl radical (OH·), persulfate radical (S 2 O 8 - ·), and superoxide radical (O 2 ·) exist in this system under acidic conditions. Furthermore, with the increase of pH, the relative amount of O 2 · increases while that of OH· and SO 4 - · decreases, resulting in a reduced oxidizing capacity of the system.

O terceiro milênio e o paradigma da informação 10.5007/1518-2924.1999v4n8p35

Directory of Open Access Journals (Sweden)

Edilene Vieira Scotti

1999-01-01

Full Text Available Reflexão sobre o papel da informação, do conhecimento e das tecnologias de informação na sociedade atual. Discorre sobre as relações da informação com o poder e com a sociedade. Aborda a Sociedade da Informação e os desafios profissionais no terceiro milênio.

Improved Gas Metal Arc Welding Multi-Physics Process Model and Its Application to MIL A46100 Armor-Grade Steel Butt-welds

Science.gov (United States)

2014-01-01

decomposition during cooling is the so-called CCT (Continuous Cooling Transformation) diagram. In the case of CCT diagrams , the thermal histories...the start and the finish of the aforementioned phase transformations) are characterized by constant cooling rates. An example of the CCT diagram for...Ac1 Bs Fs Ff –0.01K/s1.6 K/s Figure 11. MIL A46100 continuous- cooling-transformation ( CCT ) diagram corresponding to the TTT diagram displayed in

New Roman Coin Find in Estonia / Mauri Kiudsoo

Index Scriptorium Estoniae

Kiudsoo, Mauri, 1973-

2013-01-01

2012. aastal muuseumikogudesse laekunud aarete hulgast väärib esile tõstmist Kastna peitleid endisest Tõstamaa kihelkonnast. Leid sisaldas pronksist sestertse Marcus Aureliuse ja tema abikaasa Faustina noorema ajast. Tegemist on läbi aegade suurima Rooma rahadest koosneva Eesti leiuga

[Agnieszka Bartoszewicz. Czas w małych miastach. Studium z dziejów kultury umysłowej póznośredniowiecznej Polski] / Raimo Pullat

Index Scriptorium Estoniae

Pullat, Raimo, 1935-

2009-01-01

Arvustus: Bartoszewicz, Agnieszka. Czas w małych miastach. Studium z dziejów kultury umysłowej póznośredniowiecznej Polski. Warszawa-Pułtusk, 2003. Poola hiliskeskaja linnadest. Ajaarvestusest, ajakasutuse rütmist ja vormist ning ettekujutusest ajast

Paneelmajad pole kaardimajad / Karl Õiger

Index Scriptorium Estoniae

Õiger, Karl, 1933-

1999-01-01

Paneelmajade tehnilisest seisundist, ekspertiisi tegemisest, varisemisohust, vanade hoonete renoveerimisest ja ümberehitamisest, ehitamise kvaliteedist Eestis, nõukogude ajast ehituses, paneelelamutest ja munitsipaalelamufondist, mida tuleks paneelhoone juures jälgida jm. Artikli kirjutamise ajendiks oli Postimehe artikkel "Viitsütikuga majad" (18. VIII)

Somaatiline mõiste KÄSI tähendusmuutuste esiletoojana / Silvi Tenjes

Index Scriptorium Estoniae

Tenjes, Silvi, 1958-

2007-01-01

Vaadeldakse eesti- ja venekeelseid "käe" mõistega seotud väljendeid Mihhail Bulgakovi "Meistris ja Margaritas" ning uuritakse, kas saadud tulemused võiksid peegeldada sotsiokultuurilisi mõjusid keele tähendussfäärile juba rahvaste rändamise ajast alates

Kahevõitlus Rooma moodi / Jaanus Noormets

Index Scriptorium Estoniae

Noormets, Jaanus

2006-01-01

Ajalooline kostüümidraama - seriaal Rooma impeeriumi ajast "Rooma" : tootjad Ameerika Home Box Office (HBO), inglaste BBC ja itaallaste RAI ning ameerika ABC toodang - 6-osaline "Impeerium", mis filmiti Roomas samal ajal - 2004.aastal. Sama ka Teleleht nr. 45, lk. 38 : ill

Archaeological investigations at Lossi 15, Tartu / Andes Tvauri

Index Scriptorium Estoniae

Tvauri, Andres, 1970-

2009-01-01

Arheoloogilised eeluuringud toimusid seoses Tartu Muusikakooli juurdeehitusega. Leiti hoone jäänused, mille rusukihi seest saadud leiud pärinevad Vene-Liivi sõja ajast. 1,4 m sügavusel maapinnast leiti munakivisillutis. Kogutud leiumaterjal koosneb valdavalt 16.-18. sajandi keraamikast

The role of the Soviet past in post-Soviet memory politics through examples of speeches from Estonian presidents / Kirsti Jõesalu

Index Scriptorium Estoniae

Jõesalu, Kirsti, 1976-

2012-01-01

Mälupoliitika dünaamikast Eestis 1990st aastast kuni tänapäevani. Autor võrdleb taasiseseisvunud Eesti presidentide elukäike ja analüüsib, kuidas on mälestus nõukogude ajast mõjutanud nende avalikke kõnesid

Junāgadhi raidkiri: kommunaalpropaganda Vana-India moodi / Martti Kalda

Index Scriptorium Estoniae

Kalda, Martti, 1973-

2016-01-01

Rudradāmani raidkirjast. Raidkiri on rajatud Sudarśana veehoidla parandamise ja renoveerimise auks. Raidkirja ajaloolisest taustast. Raidkirja teksti tõlge ja kommentaarid. Tegemist on (peale müntide) ainsa säilinud tekstiga vürst Rudradāmani ajast

ESL aastapreemia konkurss 2011. Žürii koosoleku protokoll = ESL awards 2011. Minutes of the meeting of the panel of judges = Конкурс на соискание премии ESL за 2011 год. Протокол собрания жюри

Index Scriptorium Estoniae

2012-01-01

Eesti Sisearhitektide Liidu aastapreemia žürii otsustas välja anda ühiskondliku interjööri (Tartu Tervishoiu Kõrgkool), ajaloolise interjööri (Peterburi Jaani kirik), "Väikese ruumi" (Järvamaa turismiinfokeskus), publitsistika (raamat "Tööraamat") ning näituse ja installatsiooni kujunduse (näitus "Pavel Filonov. Vene avangard ja järgnenu ..." Kumu Kunstimuuseumis"") preemia. Tudengipreemia pälvis Tuuli Trei

Pulse gas chromatographic study of adsorption of substituted aromatics and heterocyclic molecules on MIL-47 at zero coverage.

Science.gov (United States)

Duerinck, Tim; Couck, Sarah; Vermoortele, Frederik; De Vos, Dirk E; Baron, Gino V; Denayer, Joeri F M

2012-10-02

The low coverage adsorptive properties of the MIL-47 metal organic framework toward aromatic and heterocyclic molecules are reported in this paper. The effect of molecular functionality and size on Henry adsorption constants and adsorption enthalpies of alkyl and heteroatom functionalized benzene derivates and heterocyclic molecules was studied using pulse gas chromatography. By means of statistical analysis, experimental data was analyzed and modeled using principal component analysis and partial least-squares regression. Structure-property relationships were established, revealing and confirming several trends. Among the molecular properties governing the adsorption process, vapor pressure, mean polarizability, and dipole moment play a determining role.

Low-temperature binding of NO adsorbed on MIL-100(Al)—A case study for the application of high resolution pulsed EPR methods and DFT calculations

Science.gov (United States)

Mendt, Matthias; Barth, Benjamin; Hartmann, Martin; Pöppl, Andreas

2017-12-01

The low-temperature binding of nitric oxide (NO) in the metal-organic framework MIL-100(Al) has been investigated by pulsed electron nuclear double resonance and hyperfine sublevel correlation spectroscopy. Three NO adsorption species have been identified. Among them, one species has been verified experimentally to bind directly to an 27Al atom and all its relevant 14N and 27Al hyperfine interaction parameters have been determined spectroscopically. Those parameters fit well to the calculated ones of a theoretical cluster model, which was derived by density functional theory (DFT) in the present work and describes the low temperature binding of NO to the regular coordinatively unsaturated Al3+ site of the MIL-100(Al) structure. As a result, the Lewis acidity of that site has been characterized using the NO molecule as an electron paramagnetic resonance active probe. The DFT derived wave function analysis revealed a bent end-on coordination of the NO molecule adsorbed at that site which is almost purely ionic and has a weak binding energy. The calculated flat potential energy surface of this species indicates the ability of the NO molecule to freely rotate at intermediate temperatures while it is still binding to the Al3+ site. For the other two NO adsorption species, no structural models could be derived, but one of them is indicated to be adsorbed at the organic part of the metal-organic framework. Hyperfine interactions with protons, weakly coupled to the observed NO adsorption species, have also been measured by pulsed electron paramagnetic resonance and found to be consistent with their attribution to protons of the MIL-100(Al) benzenetricarboxylate ligand molecules.

Superior Activity of Isomorphously Substituted MOFs with MIL-100(M=Al, Cr, Fe, In, Sc, V) Structure in the Prins Reaction: Impact of Metal Type

Czech Academy of Sciences Publication Activity Database

Gómez-Pozuelo, G.; Cabello, C. P.; Opanasenko, Maksym; Horáček, Michal; Čejka, Jiří

2017-01-01

Roč. 82, č. 1 (2017), s. 152-159 ISSN 2192-6506 R&D Projects: GA ČR GA14-07101S Institutional support: RVO:61388955 Keywords : impregnated mcm-41 catalyst * organic frameworks mil-100 * solid acid catalyst Subject RIV: CF - Physical ; Theoretical Chemistry OBOR OECD: Physical chemistry Impact factor: 2.797, year: 2016

Filme meist ja meie ajast / Raimo Jõerand

Index Scriptorium Estoniae

Jõerand, Raimo

2007-01-01

EFSA filmiekspert teavitab uutest eesti tõsielufilmidest : Urmas E. Liivi "Casting" ja "Briljantroheline maja, pumbakaev ja valge laev", Andres Maimiku, Jaak Kilmi "Müümise kunst", James ja Maureen Tusty "Laulev revolutsioon"

Tacita Deani ajadokumendid kunstina / Kaire Nurk

Index Scriptorium Estoniae

Nurk, Kaire, 1960-

2003-01-01

Tacita Deani (sündinud 1965 Canterburys, elab ja töötab Berliinis) loomingust. Kunstnik on spetsialiseerunud ajale, Veneetsia bienaalil esines ta Francesco Bonami ja Daniel Birnbaumi kureeritud projektis "Ritardi e Revoluzioni" ning Hans-Ulrich Obristi projektis "Utopia Station". Ajast huvitatud eesti kunstnikust Erki Kasemetsast

"Starman murrab piire" valiti mainekal PR-auhinnakonkursil finaali / Kristi Reiland

Index Scriptorium Estoniae

Reiland, Kristi

2015-01-01

Telekommunikatsioonifirma Starman tõi 2014. aastal turule teenuse TV Everywhere, mis võimaldab telepildi vaatamist ka nutiseadmest ja arvutist ajast ja asukohast sõltumata. Teenuse turule toomise kampaaniast, avaüritusest ja meediastrateegiast. Starmani teenuse TV Everywhere turule toomine valiti rahvusvahelisel PR-konkursil Exellence Awards finaalfooru

Väljavõtteid kunstikoguja Alfred Rõude mälestuste käsikirjast / Alfred Rõude

Index Scriptorium Estoniae

Rõude, Alfred

1998-01-01

Andrus Johanist, tema loomingust. Meenutusi A. Johani 'Pallases' õppimise ajast, Eestis 1933. ja 1936. a. koos tehtud kunstiretkedest, sel ajal A. Johanil valminud töödest. A. Johani kunstipärandist (Tallinn, aug. 1946). A. Rõude kogus süstemaatiliselt A. Johani töid

Bilder i marginalen som retorisk modus = Bilder am Rande als rhetorischer Modus / Lars Olof Larsson

Index Scriptorium Estoniae

Larsson, Lars Olof

2006-01-01

Keskajal ja varauusaja portreedel on kaunistatud ehisraamid raamatumaalis ja graafikas olulisel kohal. Näitena analüüsitakse Karl V erinevast ajast portreesid ja nende marginaalseid ehisraame ja raami dekoore, mis annavad pildile lisaväärtusena sotsiaalse ning kultuurilise tähenduse ja uue retoorika

Ada Compiler Validation Summary Report: Certificate Number: 890804S1. 10142 Loral/Rolm Mil-Spec Computers ADE, Revision 3.01 MV 10000 Host and HAWK/32 Target

Science.gov (United States)

1989-08-04

Date Owners Declaration I, the undersigned, representing agree that as part of the joint Marketing Agreement between Roim Mil-Spec and Data General for...possible. Format pragma NLINE (name (, namei): Where: name Specfies the subprogram or neric unit you want inLined at each calL The subprogam or

Identificada una malformació dental no gaire comuna en un individu del III mil·lenni aC

OpenAIRE

López Onaindia, Diego

2016-01-01

Un estudi de la UAB ha permès identificar el cas més antic de macrodòncia bilateral aïllada a les segones premolars inferiors descrit fins a la data. Es tracta d'una malformació dental no gaire comuna que s'ha trobat en un individu de la Cova del Pantà de Foix (Castellet i la Gornal, Barcelona), les inhumacions de la qual estan datades al III mil·lenni aC. Tot i que no es coneix la causa d'aquesta malformació, els resultats la relacionen amb l'existència de factors d'estrès ambiental que haur...

Projectile, 155MM, XM982, Excalibur, Packed One (1) per PA179 Container, Unitized Up to Three (3) per 40 in. x 48 in. Wooden Pallet, MIL-STD-1660 Tests

National Research Council Canada - National Science Library

Dugan, Jeffery L

2007-01-01

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV), conducted tests in accordance with MIL-STD-1660, "Design Criteria for Ammunition Unit Loads" on the XM982 155MM Excalibur Projectile packed one...

Composite Monopack for 120mm Mortar, With Plastic Pallet Adapters on a 42" x 53" Wooden Pallet, MIL-STD-1660 Tests, "Design Criteria for Ammunition Unit Loads", and Extreme Temperature Tests

National Research Council Canada - National Science Library

Dugan, Jeffery L

2005-01-01

.... The test units were tested in accordance with the procedures set forth in MIL-STD-1660. Stacking, repetitive shock, edgewise-rotational drop, incline-impact, forklifting, and disassembly testing were conducted on the test units...

Näitused / Mari Sobolev

Index Scriptorium Estoniae

Sobolev, Mari, 1968-

1998-01-01

Rotermanni soolaladu: Mark Raidpere ja Ene-Liis Semper "Mäng 4. käel"; Kunstihoone: Tony Craggi skulptuurid; Adamson-Ericu muuseum: Eduard Ole 100. sünniaastapäevale pühendatud näitus; Kastellaanimaja galerii: "Tee Raamat": Anu Purre kirjutus-kunstistuudio EKSTEKST GRUPP ja stuudio sõprade näitus (T-särkidest raamat-installatsioonid); Tervishoiumuuseum: "In vino..."; Tammsaare muuseum:"Tiibeti muistne kultuur. Hiina maastikud"; Kullo galerii: Huvikeskuse Kullo aastanäitus.

Ada Compiler Validation Summary Report: Certificate Number: 890804S1.10141 Loral/Rolm Mil-Spec Computers ADE, Revision 3.01 MV 10000 Host and HAWK/32 Target

Science.gov (United States)

1989-08-04

undersigned, representing /-- /Wz agree that as part of the joint Marketing Agreement between Rolm Mil-Spec and Data General for the Ada Development...the assembly (e wkhout the pragma. Source Code in the folowing emaple, prama NLINE applie to all tb calls to SQUARE in WrrH INLINF. procedure WITH

Tundmatu eesti disain / Ivar Sakk

Index Scriptorium Estoniae

Sakk, Ivar, 1962-

2006-01-01

Eesti disainist, selle teadvustamisest, disainiajaloo puudumisest. Eesti keraamika ajaloost on kirjutanud Leo Rohlin, klaasikunsti ajaloost Maie-Ann Raun, sisearhitektuuri ajaloost Krista Kodres. Kai Lobjakas on kirjutanud ülevaate "Märkmeid eesti disainist". Saksa disaineri Serge Rompza ja ameerika disainiteoreetiku Victor Margolini arvamusest näituse "Ajast ees" kohta

Kõik teed viivad Rooma / Jaanus Noormets

Index Scriptorium Estoniae

Noormets, Jaanus

2006-01-01

Ajalooline seriaal Rooma impeeriumi ajast "Rooma" : tootjad Ameerika Home Box Office (HBO), inglaste BBC ja itaallaste RAI. Seriaali võtetest Cinecitta filmistuudios, osalistest, probleemidest. Ilmastik katkestas võtted kolmeks kuuks, mistõttu pidi lahkuma kolm esimest osa lavastanud Michael Apted. Sama : Teleleht nr. 47, lk. 8-9 : ill

BBC ja HBO taaselustasid Rooma viletsuse ja hiilguse / Brigitta Davidjants

Index Scriptorium Estoniae

Davidjants, Brigitta, 1983-

2005-01-01

12-osaline ajalooline kostüümidraama - seriaali Rooma impeeriumi ajast "Rooma" tootsid Ameerika tootja Home Box Office (HBO) ja inglaste BBC. Esimest osa "Varastatud kotkas" näitas HBO 28. augustil. Kolme esimese osa režissöör on Michael Apted, stsenaariumi eest vastutab Bruno Heller

Kadi Pärnits : tööõnnetuste hüppeline kasv Eestis on tingitud ministri saamatusest / Piret Pert

Index Scriptorium Estoniae

Pert, Piret

2006-01-01

Riigikogu sotsiaalkomisjoni aseesimees Kadi Pärnits peab vajalikuks tööõnnetus- ja kutsehaiguskindlustuse eelnõu toomist Riigikokku. Tema sõnul ei võimalda nõukogude ajast pärit süsteem tööõnnetuse ohvritele elementaarset kaitset, normaalset ravi ega tööõnnetushüvitist

Valed otsused lähevad järjest kallimaks / Argo Rannamets

Index Scriptorium Estoniae

Rannamets, Argo

2006-01-01

Valdavalt kulub Eesti ettevõtetel otsuste ettevalmistamise töös Pareto printsiipi rakendades 80% ajast andmete kogumisele ja vaid 20% jääb analüüsile ning järelduste tegemisele. Kommenteerib Alvar Pihlapuu. Vt. samas: Trendid, mis info kogumisele kuluvat aega enam mõjutavad

[Raamat] / Kadri Kõusaar

Index Scriptorium Estoniae

Kõusaar, Kadri

2005-01-01

Tutvustus: Nahman Bratslavist. Rabi Nahmani imelised lood / heebrea keelest tõlkinud Uku Masing, Kalle Kasemaa, Rahel M. Kasemaa ; [järelsõna ja kommentaarid: Kalle Kasemaa]. Tallinn : Varrak, 2004

Raamat algajale disainerile

Index Scriptorium Estoniae

2007-01-01

Markko Karu osales Londonis Briti Nõukogu korraldatud rahvusvahelisel noorte disaineritest ettevõtjate võistlusel - projektiks oli käsiraamat äsja ülikooli lõpetanud disaineritele. Konkursi võitis venetsueela disainer Sigal Cohen

[Raamat] / Sergei Stadnikov

Index Scriptorium Estoniae

Stadnikov, Sergei, 1956-

2003-01-01

Arvustus: Enuma elish : Babüloonia loomiseepos / [akkadi keelest tõlkinud ja eessõna: Amar Annus]. Tallinn : Kirjastuskeskus, 2003 ; Gudea. Kuningas Gudea templihümn / [sumeri keelest tõlkinud: A-silinder: Sven-Erik Soosaar ; B-silinder: Amar Annus ; eessõna: Amar Annus]. Tallinn : Kirjastuskeskus, 2002

[Raamat] / Elina Kalm

Index Scriptorium Estoniae

Kalm, Elina

2007-01-01

Tutvustus: Stroud, Jonathan. Samarkandi amulett / tlk. Bibi Raid. Tallinn : Pegasus, 2005 ; Stroud, Jonathan. Golemi silm / tlk. Bibi Raid. Tallinn : Pegasus, 2007 ; Stroud, Jonathan. Ptolemaiose värav / tlk. Bibi Raid. Tallinn : Pegasus, 2007. (Bartimaeuse triloogia ; 1-3)

[Raamat] / Vaba. Lembit

Index Scriptorium Estoniae

Vaba. Lembit

1994-01-01

Arvustus: Etymologisches Wörterbuch des Ungarischen. Erarbeitet im Institut für Sprachwissenschaften der Ungarischen Akademie der Wissenschaften. Herausgeber Lorand Benkö. Redakteure Karoly Gerstner, Antonia S. Hamori, Edit Hexendorf, Laszlo Horvath, Gabor Zaicz. Lieferung 1-2. Budapest : Akademia Kiado, 1993.

[Raamat] / Raimo Pullat

Index Scriptorium Estoniae

Pullat, Raimo, 1935-

2008-01-01

Rets. rmt.: Johans Kristofs Broce. Z̋ṁjumi un apraksti 4. Sejums. Latvijas Mazś pilsṫas un lauki. Manuskriptu publiç̇anai sagatavojis Dr. hist. Muntis Auns. R̋ga, 2007. Johann Christoph Brotze unikaalset kollektsiooni käsitleva entsüklopeedilise suurteose neljandast (viimasest) osast

Uus raamat arhitektuurist

Index Scriptorium Estoniae

1999-01-01

6. sept. esitleti "Võitlevas Sõnas" arhitektuuribüroo Künnapu & Padrik enda publitseeritud raamatut "Valitud töid/Selected Works", milles on pildiline kui tekstiline info nende loomingust alates 1984. a.

Raamat / Matis Rodin

Index Scriptorium Estoniae

Rodin, Matis

2012-01-01

Raamatututvustus: Paulus, Karin. Tootedisain : asjad minu elus. Tallinn : Eesti Kunstiakadeemia, 2011; Vainküla, Tõnu, Pere, René. Vana mööbel korda oma kätega. [Tallinn] : Ajakirjade Kirjastus, 2012; Ruumipilt 2011 : Eesti parimad interjöörid ja disain / Eesti Sisearhitektide Liit ; toimetaja ja vastutav väljaandja Priit Põldme. Tallinn, 2012

[Raamat] / Tarmo Rajamets

Index Scriptorium Estoniae

Rajamets, Tarmo, 1969-

2004-01-01

Tutvustus: Robbe-Grillet, Alain. Džinn : punane auk ebaühtlaste sillutuskivide vahel : moodsa aja lugemik = Djinn : un trou rouge entre les pavés disjoints / Heli Alliku tõlge. [Tallinn] : Valgus, 2004. (Homo ludens)

Raamat / Matis Rodin

Index Scriptorium Estoniae

Rodin, Matis

2012-01-01

Tutvustus: Kalm, Mart. Rannalinn, seenrõdu ja viinakapp : Pärnu linnaarhitekt Olev Siinmaa. Eesti Arhitektuurimuuseum : Eesti Kunstiakadeemia, 2012; Olander, Aare. Kadunud vaated : Tallinna muutumine enam kui 400 fotol. Tänapäev, 2012; Mälestiste restaureerimine : enne ja pärast 2005-2011 / koostanud Britta Lainevool ja Ülo Puustak. Muinsuskaitseamet, 2011

[Raamat] / Kaja Tiisel

Index Scriptorium Estoniae

Tiisel, Kaja

2007-01-01

Rets. rmt.: Jõelähtme kirik ja kogudus 18. sajandi esimesel poolel. Pastor Heinrich Christopher Wrede ja tema ametijärglaste kroonikamärkmed. Transkribeerinud, tõlkinud ja kommenteerinud Tiina Kala. Tallinn : Muinsuskaitseamet, 2006. 420 lk.

[Raamat] / Mati Erelt

Index Scriptorium Estoniae

Erelt, Mati, 1941-

1995-01-01

Arvustus: Metslang, Helle. Temporal relations in the predicate and the grammatical system of Estonian and Finnish : [dissertation]. Oulu : Oulun yliopisto, 1994. (Oulun yliopiston suomen ja saamen kielen laitoksen tutkimusraportteja, ISSN 0356-6773 ; 39)

[Raamat] / Andra Teede

Index Scriptorium Estoniae

Teede, Andra, 1988-

2007-01-01

Tutvustus: Tranströmer, Tomas. Suur on mõistatus ; Mälestused seiravad mind / rootsi keelest tõlkinud Tõnis Arnover ja Lennart-Hans Jürgenson. Tallinn : Kultuurileht, 2007. (Loomingu Raamatukogu ; 2007, 27)

[Raamat] / Andra Teede

Index Scriptorium Estoniae

Teede, Andra, 1988-

2007-01-01

Tutvustus: Pervik, Aino. Paula lõpetab lasteaia / illustreerinud Piret Raud. Tallinn : Tiritamm, 2007. (Tähenärija Raamatukogu) ; Pervik, Aino. Paula esimene koolipäev / illustreerinud Piret Raud. Tallinn : Tiritamm, 2007. (Tähenärija Raamatukogu)

[Raamat] / Elisa Loopealne

Index Scriptorium Estoniae

Loopealne, Elisa

2007-01-01

Tutvustus: Bristol, Piret. Nöörist ja seebist. Pärnu : Jumalikud Ilmutused, 2006. (Ji) ; Kivisildnik. Vägistatud jäämägi. Pärnu : Jumalikud Ilmutused, 2006. (Ji) ; Sild, Ivar. Spermaga ja puha. Pärnu : Jumalikud Ilmutused, 2006. (Ji) ; Meiel, Kaupo. Polügrafisti käsiraamat, 2006

[Raamat] / Juhan Kreem

Index Scriptorium Estoniae

Kreem, Juhan

2003-01-01

Rets. rmt.: Jahnke, Carsten. Das Silber des Meeres. Fang und Vertrieb von Ostseehering zwischen Norwegen und Italien (12.-16. Jahrhundert). Quellen und Darstellungen zur hansischen Geschichte N. F. Köln, Weimar, Wien, 2000

Composite Monopack for 120mm Mortar, With Plastic Pallet Adapters on a 42" x 53" Wooden Pallet, MIL-STD-1660 Tests, "Design Criteria for Ammunition Unit Loads", and Extreme Temperature Tests

National Research Council Canada - National Science Library

Dugan, Jeffery L

2005-01-01

... (AMSRD-AAR-AIL-P) to conduct MIL-STD-1660 Tests to determine if the composite monopack for the 120MM mortar, with plastic pallet adapters on a 42" x 53" wooden pallet, designed by US Army ARDEC and manufactured...

Anketa delovoi zhenshtshinõ / Marina Laikjõe ; interv. Marina Andrejeva

Index Scriptorium Estoniae

Laikjõe, Marina, 1967-

2005-01-01

Laulasmaa Resort juhatuse esimees võimalustest paremini organiseerida oma tööpäeva, oponendi mõjutamisest, meeste osast oma karjääris, karjäärile kaasaaidanud isiklikest omadustest, hingelise tasakaalu saavutamisest, riietumisstiilist, tööle ja perele pühendatud ajast, seni saavutatust. Lisa: CV

Application of Fe3O4@MIL-100 (Fe) core-shell magnetic microspheres for evaluating the sorption of organophosphate esters to dissolved organic matter (DOM).

Science.gov (United States)

Pang, Long; Yang, Peijie; Yang, Huiqiang; Ge, Liming; Xiao, Jingwen; Zhou, Yifan

2018-06-01

Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers in many products and materials. Because of the potential biologic toxicity on human beings, OPEs are regarded as a class of emerging pollutants. Dissolved organic matters (DOM) have significant effects on the bioavailability and toxicity of the pollutants in the environment. Negligible-depletion solid-phase microextraction (nd-SPME) is an efficient way for measuring the freely dissolved pollutants but suffers from long equilibrium time. Metal-organic frameworks (MOFs) are a class of porous crystalline materials with unique properties such as high pore volume, regular porosity, and tunable pore size, being widely used for the extraction of various organic compounds. Here we developed a novel method for quick determination the sorption coefficients of OPEs to DOM in aquatic phase using Fe 3 O 4 @MIL-100 (Fe) core-shell magnetic microspheres. The mesoporous structures of the as-synthesized microspheres hindered the extraction of OPEs which associated with humic acid due to the volume exclusion effect. However, the freely dissolved OPEs can access into the mesoporous and then were extracted by MIL-100 (Fe). Due to the small pore size (4.81 nm), large surface area (141 m 2  g -1 ), high pore volume (0.17 g 3  g -1 ), and ultra-thin MOFs layers, Fe 3 O 4 @MIL-100 (Fe) core-shell magnetic microspheres have large contact area for the analytes in aqueous phase and therefore the diffusion distance was largely shortened. Besides, the microspheres can be collected conveniently after the extraction process by applying a magnetic field. Compared to the nd-SPME method with 35 h equilibration time (t 90% ), the proposed method for these studied OPEs only need 24 min to achieve equilibration. The sorption coefficients (logK DOC ) of the OPEs to humic acid were ranged from 3.84-5.28, which were highly consistent with the results by using polyacrylate-coated fiber and polydimethylsiloxane

Fitodefensivos em plantas medicinais: macromoléculas hidrofílicas de folhas de mil folhas (Achillea millefolium L. inibem o crescimento in vitro de bactérias fitopatogênicas Agrochemicals in medicinal plants: hydrophilic macromolecules from leaves of "mil folhas" (Achillea millefolium L. inhibit in vitro growth of phytopathogenic bacteria

Directory of Open Access Journals (Sweden)

N.G. Tessarollo

2013-01-01

Full Text Available Extratos aquosos da planta medicinal Achillea millefolium contêm macromoléculas de interesse para desenvolver fitodefensivos para a agricultura. Duas frações de mil folhas foram obtidas por ultrafiltração, E1 (contendo moléculas maiores que 30 kDa, e E3 (peptídeos entre 1 e 10 kDa que inibiram o crescimento das bactérias fitopatogênicas Ralstonia solanacearum, gram-negativa, e Clavibacter michiganensis subsp. michiganensis, gram-positiva, com dependência de concentração. Os valores de concentração inibitória mínima (CIM para ambos os extratos e bactérias foram baixos, entre 20 e 80µM. A CIM relativa à proteína total evidenciou a presença de macromoléculas muito ativas em E3, embora com baixa concentração proteica. E3 se aplica à prospecção de peptídeos antimicrobianos. Estimar a CIM relativa à quantidade de amostra vegetal valorizou o potencial antimicrobiano natural de E1, que contém alta concentração proteica. E1e E3 se aplicam ao desenvolvimento de fitodefensivos para uso biotecnológico. A ultrafiltração fracionou as amostras de forma nativa, rápida, e com baixo custo; além de dessalinizar, clarificar, purificar, e concentrar E1 e E3. Esse estudo inédito sobre a separômica e a ação antimicrobiana de extratos macromoleculares aquosos de mil folhas sugere que plantas cicatrizantes podem apresentar grande potencial para desenvolver fitodefensivos agrícolas naturais não danosos, à semelhança de medicamentos fitoterápicos.Aqueous extracts from the medicinal plant Achillea millefolium contain macromolecules of interest to develop agrochemicals for agriculture. Two fractions of "mil folhas" were obtained by ultrafiltration, E1 (containing molecules larger than 30 kDa and E3 (peptides between 1 and 10 kDa, which inhibited the growth of phytopathogenic bacteria Ralstonia solanacearum, gram-negative, and Clavibacter michiganensis subsp. michiganensis, gram-positive, concentration-dependent. The values of

"Rooma" äratab 2000 aasta taguse hiilguse / Andri Maimets

Index Scriptorium Estoniae

Maimets, Andri, 1979-

2006-01-01

Ajalooline kostüümidraama - seriaal Rooma impeeriumi ajast "Rooma" : tootjad Ameerika Home Box Office (HBO) ja inglaste BBC. Artikkel on reportaaž Rooma filmistuudiost Cinecitta, kus on üleval seriaali elusuuruses dekoratsioonid ning selgitusi annavad ajalooline nõustaja Jonathan Stamp, produtsent-stsenarist Bruno Heller, kostüümikunstnik April Ferry jt.

Synthesis of highly efficient Mn{sub 2}O{sub 3} catalysts for CO oxidation derived from Mn-MIL-100

Energy Technology Data Exchange (ETDEWEB)

Zhang, Xiaodong, E-mail: fatzhxd@126.com [Environment and Low-Carbon Research Center, School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093 (China); Li, Hongxin; Hou, Fulin; Yang, Yang; Dong, Han; Liu, Ning [Environment and Low-Carbon Research Center, School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093 (China); Wang, Yuxin [Institute of Applied Biotechnology, Taizhou Vocation & Technical College, Taizhou, Zhejiang 318000 (China); Cui, Lifeng, E-mail: lifeng.cui@gmail.com [Environment and Low-Carbon Research Center, School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093 (China)

2017-07-31

Highlights: • The morphology of porous Mn{sub 2}O{sub 3} cubes was inherited from Mn-MIL-100 template. • Mn{sub 2}O{sub 3} obtained at calcined temperature of 700 °C displayed high activity. • Enhanced activity is attributed to surface active oxygen, and reduction behavior. - Abstract: In this work, metal-organic frameworks (MOFs) Mn-MIL-100 were first prepared, which were next used as templates to obtain the irregular porous Mn{sub 2}O{sub 3} cubes through calcination with air at different temperature. The catalysts were characterized by N{sub 2} adsorption-desorption, X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), H{sub 2}-temperature program reduction (H{sub 2}-TPR) and X-ray photoelectron spectroscopic (XPS). The catalytic activity for CO oxidation over Mn{sub 2}O{sub 3} catalysts was investigated. It was found that calcination temperature had a strong effect on the structure and catalytic activity of Mn{sub 2}O{sub 3} catalyst. Mn{sub 2}O{sub 3} catalyst obtained by calcined at 700 °C (Mn{sub 2}O{sub 3}-700) showed a smaller specific surface area, but displayed a high catalytic activity and excellent stability with a complete CO conversion temperature (T{sub 98}) of 240 °C, which was attributed to the unique structure, a high quantity of surface active oxygen species, smaller particle size, oxygen vacancies and good low temperature reduction behavior. The effect of water vapor on catalytic activity was also examined. The introduction of water vapor to the feedstock induced a positive effect on CO oxidation over Mn{sub 2}O{sub 3}-700 catalyst. Furthermore, no obvious drop is observed in activity over catalysts even in the presence of water vapor during 48 h.

Kapital annab Rein Kilgile loominguvabaduse / Nils Niitra

Index Scriptorium Estoniae

Niitra, Nils, 1975-

2004-01-01

Rein Kilgil on 28 ettevõtet, see võimaldab rakendada ettevõtluses loomingulisust. Vt. samas: Priit Rajalo. Rein Kilk hämmastab oskusega ajast kõik võtta. Lisa: Rein Kilgi enamusosalusega ettevõtted; Rein Kilk on tööandja ligi 1000 inimesele; Rein Kilgi enamusosaluseta ettevõtted; Rein Kilgiga on seotud veel

Experimental and molecular docking investigation on metal-organic framework MIL-101(Cr) as a sorbent for vortex assisted dispersive micro-solid-phase extraction of trace 5-nitroimidazole residues in environmental water samples prior to UPLC-MS/MS analysis.

Science.gov (United States)

Lu, Nan; Wang, Ting; Zhao, Pan; Zhang, Lianjun; Lun, Xiaowen; Zhang, Xueli; Hou, Xiaohong

2016-11-01

In the presented work, metal-organic framework (MOF) material MIL-101(Cr) (MIL, Matérial Institute Lavoisier) was used as a sorbent for vortex assisted dispersive micro-solid-phase extraction (VA-D-μ-SPE) of trace amount of metronidazole (MNZ), ronidazole (RNZ), secnidazole (SNZ), dimetridazole (DMZ), tinidazole (TNZ), and ornidazole (ONZ) in different environmental water samples. Ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS) was used to quantify the target analytes. The extraction conditions, including type of sorbents, amount of MIL-101(Cr), solution pH, extraction method, extraction time, effect of salt, and elution conditions were investigated. Upon the optimal conditions, the developed method showed an excellent extraction performance with the average recovery ranging from 75.2 to 98.8 %. Good sensitivity levels were achieved with the detection limits of 0.03∼0.06 μg/L and the quantitation limits of 0.09∼0.20 μg/L. The linear ranges were varied from 0.1 to 20 for SNZ and ONZ and from 0.2 to 40 μg/L for MNZ, RNZ, DMZ, and TNZ (r 2  > 0.992), and repeatability of the method was satisfactory with the relative standard deviations (RSD) extraction and determination of 5-nitroimidazoles (5-NDZs) in 12 real water samples, showing the positive findings of MNZ and TNZ ranging from 0.3 to 1.0 μg/L. Furthermore, molecular docking was applied to explain the molecular interactions and free binding energies between MIL-101(Cr) and 5-NDZs, providing a deep insight into the adsorption mechanism. The proposed method exhibited the advantages of simplicity, rapidly, less solvent consumption, ease of operation, higher sensitivity, and lower matrix effect. Graphical abstract Schematic diagram of the extraction process and molecular docking investigation.

In-tube solid-phase microextraction based on NH2-MIL-53(Al)-polymer monolithic column for online coupling with high-performance liquid chromatography for directly sensitive analysis of estrogens in human urine.

Science.gov (United States)

Luo, Xialin; Li, Gongke; Hu, Yufei

2017-04-01

In this work, a novel NH 2 -MIL-53(Al) incorporated poly(styrene-divinylbenzene-methacrylic acid) (poly(St-DVB-MAA)) monolith was prepared via chemical fabrication. Moreover, it has been efficiently applied to the in-tube solid-phase microextraction (SPME) for online coupling with high-performance liquid chromatography (HPLC) to the direct determination of five estrogens in human urine samples. The NH 2 -MIL-53(Al)-polymer monolith was suitable for in-tube SPME owing to its good permeability, high extraction efficiency, chemical stability, good reproducibility and long lifetime. The extraction conditions including extraction solvent, pH of sample solution, flow rate of extraction and desorption, and desorption volume were investigated. Under the optimum conditions, the enrichment factors were 180-304 and saturated amounts of extraction were 2326-21393 pmol for estriol, 17β-estradiol, estrone, ethinyl estradiol and progesterone, respectively. The adsorption mechanism was also explored which contributed to its strong extraction to target compounds. The proposed method had low limit of detection (2.0-40ng/L) and good linearity (with R 2 between 0.9908 and 0.9978). Four endogenous estrogens were detected in urine samples and the recoveries of all five analytes were ranged from 75.1-120% with relative standard deviations (RSDs) less than 8.7%. The results showed that the proposed online SPME-HPLC method based on NH 2 -MIL-53(Al)-polymer monolithic column was highly sensitive for directly monitoring trace amount of estrogens in human urine sample. Copyright © 2016 Elsevier B.V. All rights reserved.

Radiative cooling test facility and performance evaluation of 4-MIL aluminized polyvinyl fluoride and white-paint surfaces

Energy Technology Data Exchange (ETDEWEB)

Kruskopf, M.S.; Berdahl, P.; Martin, M.; Sakkal, F.; Sobolewski, M.

1980-11-01

A test facility designed to measure the amount of radiative cooling a specific material or assembly of materials will produce when exposed to the sky is described. Emphasis is placed upon assemblies which are specifically designed to produce radiative cooling and which therefore offer promise for the reduction of temperatures and/or humidities in occupied spaces. The hardware and software used to operate the facility are documented and the results of the first comprehensive experiments are presented. A microcomputer-based control/data acquisition system was employed to study the performance of two prototype radiator surfaces: 4-mil aluminized polyvinyl fluoride (PVF) and white painted surfaces set below polyethylene windscreens. The cooling rates for materials tested were determined and can be approximated by an equation (given). A computer model developed to simulate the cooling process is presented. (MCW)

Estudios previos para la restauración de la azotea de la Casa Milá de Barcelona (Cataluña, España

Directory of Open Access Journals (Sweden)

Lacuesta Contreras, Raquel

1993-12-01

Full Text Available The Casa Milá of Barcelona, work of the architect Antoni Gaudí, built between 1906 and 1911, was purchased in by the Caixa de Catalunya which then started a process of restoration of the building. One of the stages of this intervention will consist of restoring the roof with all the architectural sculptural elements it contains (the staircase boxes, chimneys, ventilation towers and perimetral paths. A number of previous studies have been done to this end. They deal with the historical constructive, documentary and artistic aspects of all these elements as well as with an action proposal to be taken into account in the restoration project.

La Casa Milá de Barcelona, obra del arquitecto Antoni Gaudí construida entre 1906 y 1911, fue adquirida en 1986 por la Caixa de Catalunya que a partir de entonces inició un proceso de restauración del edificio. Una de las fases de la intervención consistirá en restaurar la azotea con todos los elementos arquitectónicos-escultóricos que contiene (cajas de escalera, chimeneas, torres de ventilación y pasos de ronda. A tal fin, se han realizado unos estudios previos que contemplan los aspectos histórico-constructivos, documental y artístico de todos estos elementos, y también una propuesta de actuación a tener en cuenta en el proyecto de restauración.

Punanahklusest: Majakovskist indiaanlasteni / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2011-01-01

Tutvustus: Jangfeldt, Bengt. Mäng elu peale : Vladimir Majakovski ja tema lähikond / tõlkinud Anu Saluäär. Tallinn : Varrak, 2011 ; Céline, Louis-Ferdinand. Reis öö lõppu / tõlkinud Heli Allik. Tallinn : Varrak, 2010 ; Simone, Claude. Flandria tee / tõlkinud Leena Tomasberg. Tallinn : Eesti Raamat, 2011 ; Härm, Tiiu. Jää voolab : Eesti polaarränduri August Masiku maailm. Tallinn : Eesti Raamat, 2010 ; Page, Jake. Suure vaimu rüpes : Ameerika indiaanlaste 20 000-aastane ajalugu / tõlkinud Matti Piirimaa. Tallinn : Tänapäev, 2011

Nobelistid : süütuse rebestus ja üllatus / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2008-01-01

Tutvustatakse 2008. a. eesti keeles ilmunud Nobeli kirjandusauhinna laureaatide jt. teoseid: Faulkner, William. Absalom, Absalom! / tlk. Kersti Unt. Tallinn : Tänapäev, 2008 ; Dostojevski, Fjodor. Alandatud ja solvatud / tlk. Leopold Kenn. Tallinn : Eesti Raamat, 2008 ; Böll, Heinrich. Ametisõidu lõpp / tlk. Mati Sirkel. Tallinn : Varrak, 2008 ; Morrison, Toni. Dzhäss / tlk. Udo Uibo ja Krista Kaer. Tallinn : Varrak, 2008 ; Laxness, Halld̤r. Islandi kell / tlk. Arvo Alas ja Askur Alas. Tallinn : Varrak, 2008 ; Bunin, Ivan. Armastuse grammatika : [novellid] / koost. Rein Põder ; tlk. Jüri Pärni. Tallinn : Eesti Raamat, 2008

Siin on käinud esinemas Länik, Veski, Apelsin... / Jaanus Piirsalu

Index Scriptorium Estoniae

Piirsalu, Jaanus, 1973-

2010-01-01

Tallinnstroi ehitajate rajatud Kitšera asulast Baikali järve põhjakaldal. Asula 30 aasta juubeli tähistamisest 2011. a. BAM-i muuseumi juhataja Nelja Trifonova Kitšera praegusest elust ja meenutusi ajast 30 aastat tagasi. Marju Länik meenutab 1987. a. turneed "Magistraali tuled" mööda BAM-i ja esinemist Kitšeras

Eestit esindab Venezia biennaalil 21. sajandi eramute kõrgmood / Tanel Veenre

Index Scriptorium Estoniae

Veenre, Tanel, 1977-

2010-01-01

27. augustil avatakse 12. Venezia arhitektuuribiennaalil "Inimesed kohtuvad arhitektuuris" (üldkuraator Kazuyo Sejima) Eesti väljapanek "100 maja / houses", mille komissar on Ülar Mark, kuraator Karen Jagodin, autorid Kalle Vellevoog, Tiiu Truus, Martin Pedanik ja Karen Jagodin. Lisaks 21. sajandi eramutele on ekspositsiooni lisatud valik ikoonilise tähendusega eramuid esimese Eesti Vabariigi ja nõukogude ajast

100 maja Veneetsias / Karen Jagodin

Index Scriptorium Estoniae

Jagodin, Karen, 1982-

2010-01-01

Eesti väljapanekust "100 maja / houses" (komissar Ülar Mark, kuraator Karen Jagodin, autorid Kalle Vellevoog, Tiiu Truus, Martin Pedanik, Karen Jagodin) 12. Venezia arhitektuuribiennaalil "Inimesed kohtuvad arhitektuuris" (üldkuraator Kazuyo Sejima). Lisaks 21. sajandi eramutele on ekspositsioonis valik märgilise tähendusega eramuid Eesti Vabariigi ajast aastatel 1918-1940 ja nõukogude ajajärgust

Näitused / Mari Sobolev

Index Scriptorium Estoniae

Sobolev, Mari, 1968-

1998-01-01

Raatuse galerii: Kiwa. "Muzik at Vremja of my Võhod"; Tarbekunstimuuseum: Malle Agabush "Valgusega ajast aega"; EKM Jõhvi filiaal: Eduard Ole 100. sünniaastapäeva näitus; Rahvusraamatukogu: Eesti Akvarellistide Ühenduse aastanäitus; Eesti Rahva Muuseum: "Tulest jäänu" ja "Post textile"; Sammas-galerii: Helmet Raja&Karl Martin Sinijärv

Tänu sümpoosionile teatakse Kohilat ka Taiwanis, Koreas ja Hiinas / Teet Teder

Index Scriptorium Estoniae

Teder, Teet

2009-01-01

9. Kohila rahvusvahelisest keraamikasümpoosionist, mille üks korraldajaid on Aigi Orav. Ameerika keraamikust Anthony Stellacciost. 25. 07 avatakse Tohisoo mõisapargis sümpoosioni käigus loodud tööde näitus, esineb vanamuusikaansambel Rondellus. Leo Rohlin Kohila keraamikasümpoosioni olulisusest, lühidalt tema näitusest "Ajast aega" Eesti Kunstiakadeemia galeriis

Allan Martinson: tean palju paremaid viise rikkaks saada / intervjueerinud Toivo Tänavsuu

Index Scriptorium Estoniae

Martinson, Allan, 1966-

2011-01-01

Tehnoloogiainvestor viitab, et mingil hetkel on Eesti start-up firmadel Eestis piirid ees, sest turud ja tööjõud on mujal. Eestis alustanud start-up firmal on siin suureks kasvada väga raske. Talentide koju kutsumise asemel võiks olla suund, et Eesti talendid elaksid poole ajast siin, samamoodi ei peaks start-up'e kramplikult Eestis hoidma

[Raamat] / Ago Künnap

Index Scriptorium Estoniae

Künnap, Ago, 1941-

2008-01-01

Arvustus: A történeti nyelvészet és a magyar nyelv eredete. Angela Marcantonio valogatott tanulmanyai. Budapest : HUN-idea Kiadó, 2006. [Ajalooline keeleteadus ja ungari keele päritolu. Angela Marcantonio valitud uurimused].

[Raamat] / Kalmer Mäeorg

Index Scriptorium Estoniae

Mäeorg, Kalmer

2008-01-01

Rets. rmt.: Tallinna kodanikeraamat 1786-1796 = Das Revaler Bürgerbuch 1786-1796. Koost. Csaba Janos Kenéz. Tallinn : Tallinna Linnaarhiiv, 2006. (Tallina Linnaarhiivi Toimetised ; 9). Käsitletud ajajärk on tuntud asehalduskorra ajana. Katariina II reformid muutsid põhjalikult Tallinna valitsemiskorda. Tulemuseks oli kodanikkonna mitmekordistumine ning selle rahvusliku ja sotsiaalse koosseisu mitmekesistumine

Raamat : [Tutvustus] / Livia Viitol

Index Scriptorium Estoniae

Viitol, Livia, 1953-

1996-01-01

Toona, Elin. Lotukata; Sagan Franȯise. Kurbus kummaline tunne. Killuke päikest jahedas vees; Vee, Elo. Võlavalgel; Plath Sylvia. Klaaskuppel; Pühakuteraamat : Nende elulood, teod ja ikonograafilised embleemid; Terhart, Franjo. Mina, Grace O'Malley

Raamat "Raidmets" = "Raidmets" book

Index Scriptorium Estoniae

2012-01-01

Tutvustus: Toivo Raidmets / koostanud Toivo Raidmets ; toimetanud Leele Välja ; tekstid: Krista Kodres, Sirje Helme, Harry Liivrand, Mart Kalm. Tallinn : Eesti Kunstiakadeemia, 2011. Loetletud Toivo Raidmetsa tehtud töid

[Raamat] / Anu Mänd

Index Scriptorium Estoniae

Mänd, Anu, 1968-

2008-01-01

Rets. rmt.: Kreem, Juhan. Sketches of a clerk : pen-and-ink drawings in the margins of the medieval account books of Reval (Tallinn). Krems : Gesellschaft zur Erforschung der materiellen Kultur des Mittelalters, 2006. (Medium aevum quotidianum ; Sonderband 18)

[Raamat] / Fagira D. Morti

Index Scriptorium Estoniae

Fagira D. Morti, pseud., 1974-

2005-01-01

Tutvustus: Torupillid ja haldjad : iiri muinasjutte / [tõlkinud Tarmo Vaarpuu] ; Croker, Thomas Crofton. Iiri haldjalegende ja -muinasjutte / [tõlkinud Eva Luts] ; Wilde, Francesca Speranza. Iirimaa iidsed legendid / Leedi Wilde ; [tõlkinud Kaspar Kalvet] (Tartu : Fantaasia, 2005)

Modified Spectral Fatigue Methods for S-N Curves With MIL-HDBK-5J Coefficients

Science.gov (United States)

Irvine, Tom; Larsen, Curtis

2016-01-01

The rainflow method is used for counting fatigue cycles from a stress response time history, where the fatigue cycles are stress-reversals. The rainflow method allows the application of Palmgren-Miner's rule in order to assess the fatigue life of a structure subject to complex loading. The fatigue damage may also be calculated from a stress response power spectral density (PSD) using the semi-empirical Dirlik, Single Moment, Zhao-Baker and other spectral methods. These methods effectively assume that the PSD has a corresponding time history which is stationary with a normal distribution. This paper shows how the probability density function for rainflow stress cycles can be extracted from each of the spectral methods. This extraction allows for the application of the MIL-HDBK-5J fatigue coefficients in the cumulative damage summation. A numerical example is given in this paper for the stress response of a beam undergoing random base excitation, where the excitation is applied separately by a time history and by its corresponding PSD. The fatigue calculation is performed in the time domain, as well as in the frequency domain via the modified spectral methods. The result comparison shows that the modified spectral methods give comparable results to the time domain rainflow counting method.

O dialogismo e as construções narrativas no game literário brasileiro: Memórias de um Sargento de Milícias

Directory of Open Access Journals (Sweden)

Patricia Margarida Farias Coelho

2014-02-01

Full Text Available Neste estudo, refletimos, a partir da proposta teórica-metodológica sobre o conceito dialogismo proposto por Bakhtin e buscamos depreender como foram construídas as narrativas para os games educativos. Este artigo tem dois objetivos: (i compreender como as narrativas são desenvolvidas para plataformas digitais e, (ii verificar  os aspectos dialógicos desenvolvidos por Bakhtin a partir da análise do jogo online. Dessa forma, tomamos como corpus o game: Memórias de um Sargento de Milícias. Nossa pesquisa encontra-se, em fase de desenvolvimento, mas constatamos que essa nova maneira de ler transforma e contribui positivamente para o acesso à literatura. Dialogism and narrative constructions in the Brazilian literary game Memórias de um Sargento de Milícias (Memoirs of a Militia Sergeant Abstract This study reflects on Bakhtin’s theoretical and methodological proposal about the concept of dialogism and the inferences on the construction of narratives for educational games. This paper has two objectives: (i to understand how narratives for digital platforms are developed, and (ii to check the dialogic aspects developed by Bakhtin from the analysis of the online game. In order to achieve the goals, the corpus chosen is the game Memoirs of a Militia Sergeant. Although this research is also in the development stage, this new way of reading has been found to contribute positively to and transform access to literature. Keywords: Educational game; literary work; dialogism; narrative; education.

Paraproletariaat ja vilets Valgre / Sandra Jõgeva

Index Scriptorium Estoniae

Jõgeva, Sandra, 1976-

2008-01-01

Eesti Kunstiakadeemia interdistsiplinaarsete kunstide osakonna ning Pärnu filmi- ja videofestivali alternatiivkino "Le Cinema Extraordinaire" (kuraatorid Erik Alalooga ja Ville-Karel Viirelaid) Tallinnas Nongrata Kunstikonteineris kultuuritehases Polymer 1.-22. II. Minna Hindi autoriõhtu (filmid "Kolm pilti elust ja ajast" ning "Sees või väljas") ja Jaan-Jürgen Klausi filmid "Sinitäheke" (peategelane Erkki Hüva) ning "Erakpoeet Marko Kompus"

Short outlines of books by Estonian authors / Berk Vaher, Aare Pilv

Index Scriptorium Estoniae

Vaher, Berk, 1975-

2005-01-01

Tutvustus: Raudam, Toomas. Nips. Tallinn : Eesti Keele Sihtasutus, 2004 ; Ilus Armin : eesti lühiproosat 1987-2002 / koost. Udo Uibo. Tallinn : Varrak, 2004 ; Ehlvest, Jüri von. Rahuldus. Tartu : Ilukirjandus, 2004 ; Ki:wa. Roboti tee on nihe ; Salatühik. Tallinn : Eesti Kunstimuuseum, 2004 ; Sommer, Lauri. Nõidade õrnus. Sännä : Tiivaalune, 2004 ; Kalkun, Andreas. Pääväraamat. Tartu : Erakkond, 2004 ; Jõerüüt, Jaak. Uus raamat. Tallinn : Tuum, 2004 ; Krull, Hasso. Meeter ja Demeeter. Tallinn : Vagabund, 2004 ; Kõiv, Madis. Päev. Tartu : Akkon, 2004 ; Mihkelson, Ene. Uroboros. Tallinn : Tuum, 2004 ; Soomets, Triin. Toormaterjal. Tallinn : Verb, 2004 ; Vaher, Berk. Sekeldaja päevad. Tallinn : Tuum, 2004

[See sinine sirjendav kaugus : Bernard Kangro ridade vahel tuhlates] / B. M.

Index Scriptorium Estoniae

Melts, Brita, 1984-

2016-01-01

Tutvustus: See sinine sirjendav kaugus : Bernard Kangro ridade vahel tuhlates : Kangro luulest inspireeritud raamat, joonistused, heliplaat ja film / [koostaja Urmas Bereczki. Tallinn : Lepalind, 2016

Ajast ja arust trükikoda Kultuuritehases / Merit Kask

Index Scriptorium Estoniae

Kask, Merit

2006-01-01

Tallinna Kultuuritehase trükikojas toimunud kõrgtrükitehnikas käsilao õpikojast. Juhendaja inglise kunstnik Pete Nevin, osa võtsid Eesti Kunstiakadeemia tudengid (nimed), kelle tehtud tööd on samas näitusel

Head lood halvast ajast / Karl Martin Sinijärv

Index Scriptorium Estoniae

Sinijärv, Karl Martin, 1971-

2003-01-01

Arvustus: Akunin, Boriss. Azazel : romaan / vene keelest tõlkinud Jüri Ojamaa. [Tallinn] : Tänapäev, 2003; Akunin, Boriss. Türgi gambiit : romaan / vene keelest tõlkinud Veronika Einberg. [Tallinn] : Tänapäev, 2003; Akunin, Boriss. Leviathan. Tallinn : Tänapäev, 2003

Deleuze, filmikunst ja rahvuslik identiteet : narratiivi aeg rahvuslikes kontekstides / David Martin-Jones ; tõlkinud Eva Näripea

Index Scriptorium Estoniae

Martin-Jones, David

2011-01-01

Antakse ülevaade Gilles Deleuze'i filmitekstidest "Kino 1 : liikumispilt" (Cinếma-1 : l'image-mouvement) ja "Kino 2 : ajapilt" (Cinếma-2 : l'image-temps) ning K. Bhabha artiklist "DissemiNatsioon" kogumikust "Rahvus ja jutustamine" (Nation and Narration,1990), kus käsitletakse ideesid narratiivist, ajast ja rahvuslikust identiteedist. Uuritakse, kuidas käsitletakse narratiivi aja kaudu ajalugu ja identiteeti ning missugust toimet avaldab see rahvusliku identiteedi konstrueerimisele

Raamaturappija / Karl Martin Sinijärv

Index Scriptorium Estoniae

Sinijärv, Karl Martin, 1971-

1997-01-01

Meister, Andi. Lõpetamata logiraamat; Asjahuvilistele astroloogia ajaloost ja rakendamisest; Wolf-Cohen, Elizbeth. 50 hõrgutavat suupistet; Üllaste, Pilvi. Matsi raamat; Cookson, Catherine. Tilly Trotter

Nägemuslik Bernard Kangro / Livia Viitol

Index Scriptorium Estoniae

Viitol, Livia, 1953-

2017-01-01

Urmas Bereczki kolmeosalise kunstieksperimendi tulemusena valmisid Bernard Kangro luuletustega CD, film "Kesksuvetants" ja raamat "See sinine sirjendav kaugus. Bernard Kangro ridade vahel tuhlates". Pikemalt nimetatud filmist

Täna ilmub Brotze suurteos Liivimaa õitsenguajast / Kätlin Kaldmaa

Index Scriptorium Estoniae

Kaldmaa, Kätlin, 1970-

2006-01-01

Eestis ilmus Riias tegutsenud baltisaksa kultuuriloolase Johann Christoph Brotze (1742-1823) Liivimaa arhitektuuriobjekte, ajaloomuistisi, linnavaateid ja elu-olu kajastav raamat pealkirjaga "Estonica". Toimetaja ajaloolane Raimo Pullat

Johann Christoph Brotze ja ajalugu akvarellides / Teet Veispak

Index Scriptorium Estoniae

Veispak, Teet, 1955-

2006-01-01

Kirjastuselt Estopol ilmus 2006. a. raamat "Estonica" Riias tegutsenud baltisaksa kultuuriloolase Eestit puudutavatest akvarellidest ja joonistustest. Koostajad Ants Hein, Ivar Leimus, Raimo Pullat ja Ants Viires

Eesti uus autorikoomiks / Mari Laaniste

Index Scriptorium Estoniae

Laaniste, Mari, 1977-

2007-01-01

Eesti Kunstiakadeemia kirjastuselt ilmus 2007. aastal Andreas Trosseki toimetatud raamat "Narratiivsus piltides. Eesti '00 aastate autorikoomiks = Narration in pictures. Estonian alternative comics from the '00s"

Mediciones épicas: un médico para 7 mil millones de pacientes. New York: Harper Collins Publishers, 2015

Directory of Open Access Journals (Sweden)

Héctor Gómez Dantés

2015-07-01

Full Text Available La lectura de un libro que describe el desarrollo de un innovador método de medición para conocer con la mayor precisión cómo enferman y mueren las poblaciones en el mundo no parecería tener ningún atractivo para esos 7 mil millones de personas mencionadas en el texto de Jeremy N. Smith. Uno se pregunta: ¿para qué queremos saber las razones de nuestra posible muerte, si la sociedad nos mueve a hacer todo lo posible por alcanzarla y de manera hasta prematura? Lo cierto es que los sistemas encargados de atender nuestra salud o, mejor dicho, nuestras enfermedades,desconocen la verdadera dimensión de los problemas que nos aquejan a nivel global y contabilizan razones o causas a nivel individual sin el menor sentido de precisión.razones o causas a nivel individual sin el menor sentido de precisión...

Martian fluid and Martian weathering signatures identified in Nakhla, NWA 998 and MIL 03346 by halogen and noble gas analysis

Science.gov (United States)

Cartwright, J. A.; Gilmour, J. D.; Burgess, R.

2013-03-01

We report argon (Ar) noble gas, Ar-Ar ages and halogen abundances (Cl, Br, I) of Martian nakhlites Nakhla, NWA 998 and MIL 03346 to determine the presence of Martian hydrous fluids and weathering products. Neutron-irradiated samples were either crushed and step-heated (Nakhla only), or simply step-heated using a laser or furnace, and analysed for noble gases using an extension of the 40Ar-39Ar technique to determine halogen abundances. The data obtained provide the first isotopic evidence for a trapped fluid that is Cl-rich, has a strong correlation with 40ArXS (40ArXS = 40Armeasured - 40Arradiogenic) and displays 40ArXS/36Ar of ˜1000 - consistent with the Martian atmosphere. This component was released predominantly in the low temperature and crush experiments, which may suggest a fluid inclusion host. For the halogens, we observe similar Br/Cl and I/Cl ratios between the nakhlites and terrestrial reservoirs, which is surprising given the absence of crustal recycling, organic matter and frequent fluid activity on Mars. In particular, Br/Cl ratios in our Nakhla samples (especially olivine) are consistent with previously analysed Martian weathering products, and both low temperature and crush analyses show a similar trend to the evaporation of seawater. This may indicate that surface brines play an important role on Mars and on halogen assemblages within Martian meteorites and rocks. Elevated I/Cl ratios in the low temperature NWA 998 and MIL 03346 releases may relate to in situ terrestrial contamination, though we are unable to distinguish between low temperature terrestrial or Martian components. Whilst estimates of the amount of water present based on the 36Ar concentrations are too high to be explained by a fluid component alone, they are consistent with a mixed-phase inclusion (gas and fluid) or with shock-implanted Martian atmospheric argon. The observed fluid is dilute (low salinity, but high Br/Cl and I/Cl ratios), contains a Martian atmospheric component

Kuidas ehitada ilma plaanita / Raivo Palmaru ; intervjueerinud Raivo Juurak

Index Scriptorium Estoniae

Palmaru, Raivo, 1951-

2009-01-01

Intervjuu Akadeemia Nord professori Raivo Palmaruga, kellel ilmus tänavu raamat "Kujutluste ühiskond" (Tallinn : Akadeemia Nord, 2009), kus autor keskendub postmodernistliku ühiskonna tunnetuslikele alustele

Preemiad

Index Scriptorium Estoniae

2007-01-01

Eesti Kunstiakadeemia nahakunsti eriala üliõpilase Liis Raudsepa õppetööna valminud kombatav raamat "Juustujaht" sai Prantsusmaal Euroopa nägemispuudega laste pildiraamatute konkursil eripreemia

Challenges in first-principles NPT molecular dynamics of soft porous crystals: A case study on MIL-53(Ga)

Science.gov (United States)

Haigis, Volker; Belkhodja, Yacine; Coudert, François-Xavier; Vuilleumier, Rodolphe; Boutin, Anne

2014-08-01

Soft porous crystals present a challenge to molecular dynamics simulations with flexible size and shape of the simulation cell (i.e., in the NPT ensemble), since their framework responds very sensitively to small external stimuli. Hence, all interactions have to be described very accurately in order to obtain correct equilibrium structures. Here, we report a methodological study on the nanoporous metal-organic framework MIL-53(Ga), which undergoes a large-amplitude transition between a narrow- and a large-pore phase upon a change in temperature. Since this system has not been investigated by density functional theory (DFT)-based NPT simulations so far, we carefully check the convergence of the stress tensor with respect to computational parameters. Furthermore, we demonstrate the importance of dispersion interactions and test two different ways of incorporating them into the DFT framework. As a result, we propose two computational schemes which describe accurately the narrow- and the large-pore phase of the material, respectively. These schemes can be used in future work on the delicate interplay between adsorption in the nanopores and structural flexibility of the host material.

A real time data acquisition system using the MIL-STD-1553B bus. [for transmission of data to host computer for control law processing

Science.gov (United States)

Peri, Frank, Jr.

1992-01-01

A flight digital data acquisition system that uses the MIL-STD-1553B bus for transmission of data to a host computer for control law processing is described. The instrument, the Remote Interface Unit (RIU), can accommodate up to 16 input channels and eight output channels. The RIU employs a digital signal processor to perform local digital filtering before sending data to the host. The system allows flexible sensor and actuator data organization to facilitate quick control law computations on the host computer. The instrument can also run simple control laws autonomously without host intervention. The RIU and host computer together have replaced a similar larger, ground minicomputer system with favorable results.

Igal mõisal on oma lugu / Mari-Ann Remmel

Index Scriptorium Estoniae

Remmel, Mari-Ann

2008-01-01

Kirjastuselt "Tänapäev" ilmus raamat "Mõisalegendid. Harjumaa", koostaja Mari-Ann Remmel, kujundaja Angelika Schneider. Kogumik sisaldab ka ajaloolist ning genealoogilist teavet mõisahoonete ning -omanike kohta

Development of 30-pin connectors for electronic modules of C and I systems for NPP's confirming to customized MIL STD-1344 requirements

International Nuclear Information System (INIS)

Marathe, P.P.; Madala, Kalyan C.; Ramakrishna, P.

2014-01-01

The electrical connectors form an important constituent of C and I system where customized circuits and hardware is required to be configured meeting the Nuclear Power Plant regulatory requirements. C and I hardware has to handle multiple hundreds of I/O's and the system architectures are made in modular construction having C and I system hardware packaged in plug-in electronic modules in the required form factors. In addition if the system has to satisfy customized JSS 55555 requirements meeting stringent shock, vibration and environmental specifications, the connectors used for the electronic modules shall meet the customized MIL STD-1344 requirements and meet reliability target for the system. 30-pin type special connectors for electronic modules and 2x30 (60) pin field cabling connectors were developed meeting the required qualification specifications. (author)

Petrology and Geochemistry of Unbrecciated Harzburgitic Diogenite MIL 07001: A Window Into Vestan Geological Evolution

Science.gov (United States)

Mittlefehldt, D. W.; Peng, Z. X.; Mertzman, S. A.; Mertzman, K. R.

2014-01-01

There is a strong case that asteroid 4 Vesta is the parent of the howardite, eucrite and diogenite (HED) meteorites. Models developed for the geological evolution of Vesta can satisfy the compositions of basaltic eucrites that dominate in the upper crust. The bulk compositional characteristics of diogenites - cumulate harzburgites and orthopyroxenites from the lower crust - do not fit into global magma ocean models that can describe the compositions of basaltic and cumulate eucrites. Recent more detailed formation models do make provision for a more complicated origin for diogenites, but this model has yet to be completely vetted. Compositional studies of bulk samples has led to the hypothesis that many diogenites were formed late by interaction of their parent melts with a eucritic crust, but those observations may alternatively be explained by subsolidus equilibration of trace elements between orthopyroxene and plagioclase and Ca-phosphate in the rocks. Differences in radiogenic Mg-26 content between diogenites and eucrites favors early formation of the former, not later formation. Understanding the origin of diogenites is crucial for understanding the petrologic evolution of Vesta. We have been doing coordinated studies of a suite of diogenites including petrologic investigations, bulk rock major and trace element studies, and in situ trace element analyses of orthopyroxene. Here we will focus on an especially unusual, and potentially key, diogenite, MIL 07001.

Ilmus väärt artiklikogumik / Arvo Tering

Index Scriptorium Estoniae

Tering, Arvo, 1949-

2008-01-01

Arvustus: Ajalookirjutaja aeg = Aetas historicum / Eesti Rahvusraamatukogu ; koost. Piret Lotman. - Tallinn, 2008. - 247 lk. - (Eesti Rahvusraamatukogu toimetised. A, Raamat ja aeg, 1736-6984 ; nr. 1) ; (Eesti Rahvusraamatukogu toimetised ; 11)

Koomiksiraamatu avab külmetav kuningas / Raimu Hanson

Index Scriptorium Estoniae

Hanson, Raimu, 1957-

2008-01-01

Ilmus Joonas Sildre kujundatud koomiksiraamat "Teistmoodi Tammsaare", toimetaja Mari Laaniste. Raamat sisaldab ka lühikokkuvõtte Anton Hansen Tammsaare elust ja loomingust ning ülevaate eesti koomiksi ajaloost

Sajandilõpu noori autoreid : Kruoganist Urduni / Piret Viires

Index Scriptorium Estoniae

Viires, Piret, 1963-

1999-01-01

Arvustus: Kruogan / koost. Hedda Maurer. Tallinn : Vares, 1998 ; Hea raamat / NAK ; toim. Indrek Särg. Tartu : Eesti Kostabi Selts, 1998 ; Harakkiri. Tallinn : Erakkond, 1999 ; Urdu : [kirjanduslik kogumik]. Rewal, 1999

Veel "Uue kunsti raamatust" ja Theo Doesburgist / Jüri Hain

Index Scriptorium Estoniae

Hain, Jüri, 1941-

1987-01-01

Berliinis ilmuvas rakenduskunsti ajakirjas "Die Form" 1929, nr. 21 ilmus Theo van Doesburgi artikkel "Raamat ja selle kujundus", kus on ära toodud "Uue kunsti raamatu" kaanepilt koos kiitva hinnanguga

Luuletajad on head, nii head... / Mari Klein

Index Scriptorium Estoniae

Klein, Mari

2008-01-01

Doris Kareva, Maria Lee ja Jürgen Rooste esinevad heategevuslikul kontserdil oma luuletustega ja laulutekstidega. Ürituste tulu eest ostetakse Väikemõisa ja Tilsi lastekodu igale lapsele oma raamat

Beyond the empire of signs / Taimi Paves

Index Scriptorium Estoniae

Paves, Taimi

2011-01-01

Andres Ehini loomingust ning tema luuletuste retseptsioonist Jaapanis. Luulekogudest "Kuitund = The if hour" (Tallinn : Maalehe Raamat, 2010) ja "Sitikas suudleb kuud = A chafer kisses the moon" (Tokyo : Shichigatsudô, 2008)

Eestlased on animatsiooni rockstaarid / Tiit Tuumalu

Index Scriptorium Estoniae

Tuumalu, Tiit, 1971-

2003-01-01

Chris Robinsoni raamat eesti animafilmidest "Between genius & utter illiteracy : a story of Estonian animation", mille andis välja kirjastus Varrak. Ka Janno Põldma ja Jaan Ruusi arvamused raamatu kohta

Raamat, suhtluse alustala / Villem Loigom

Index Scriptorium Estoniae

Loigom, Villem

2007-01-01

Aldus Manutiuse (1449-1515) kirjastatud raamatutest, mis kujunduse poolest lõid lääne kultuurile omase tüpograafilise standardi, kirjatüüpidest ja illustratsioonidest, ka eesti raamatust ning e-raamatutest ning digitaalsetest raamatukogudest

Üks raamat mitmes kuues

Index Scriptorium Estoniae

2003-01-01

Kuressaare linnuse kaitsetornis avati Assisi Franciscuse "Päikeselaulule" pühendatud näitus, mis on osa 2002. a. Itaalias Assisis ja Macaretas toimunud II rahvusvahelisest raamatuköitekunsti näituskonkursist, kus Eestist olid 100 medaliga autasustaud kunstniku hulgas Urve Kolde, Kaia Lukats, Esta Voss ja Tiina Piisang, 200 äramärgitud köite autorite seas 18 kunstnikku

De Italo Calvino a Ricardo Piglia, do centro para a margem: o deslocamento como proposta para a literatura deste milênio

Directory of Open Access Journals (Sweden)

Renato Cordeiro Gomes

2004-06-01

Full Text Available O escritor italiano Italo Calvino deixou como testamento literário seis propostas que caracterizariam a literatura do "próximo milênio", mas não teve tempo de redigir a sexta dessas propostas, justamente a "consistência". O escritor argentino Ricardo Piglia, na conferência "Três propostas para o próximo milênio (e cinco dificuldades", proferida na Casa de las Américas, Cuba, em 2000, propõe, então, escrevê-la, não a consistência, mas o "deslocamento, a distância", para equacionar o problema do futuro da literatura e sua função na sociedade, vista, entretanto, a partir da margem, das bordas das tradições centrais da América Hispânica.El escritor italiano Italo Calvino ha dejado como testigo literario seis propuestas para caracterizar la literatura del "próximo milenio", pero no tuvo tiempo de escribir la sexta, justo la que llevaria el nombre de "consistencia". El escritor argentino Ricardo Piglia en su conferencia "Tres propuestas para el próximo milenio (y cinco dificultades", hecha en la Casa de Las Américas, Cuba, año 2000, intenta escribirla - no como consistencia - sino como "desplazamiento, distancia", para equacionar el problema del futuro de la literatura y su función en la sociedad, pero desde el margen, desde el borde de las tradiciones centrales de Hispano-América.The Italan writer Italo Calvino has left as his literary legacy the six proposals that would characterize the literature of the "next millenium", but he had no time to write "consistency", the sixth of these proposals. The Argentinian writer Ricardo Piglia at the "Three proposals for the next millenium (and five difficulties", conference held at "Casa de las Américas", Cuba, in 2000, proposes, therefore, to write the proposals "dislocation" and "distance" in the place of consistency, aiming at solving the problem of literature's future and its role in society, which is seen, however, from the edge, from the border of Spanish America's central

Läbi legendide William Shakespeare'i poole / Maris Peters

Index Scriptorium Estoniae

Peters, Maris

2010-01-01

Tutvustus: Wells, Stanley. Kas on tõsi, et Shakespeare ...? / tõlkinud Maris Peters. Tallinn : Argo, 2010. Raamat William Shakespeare kohta käivatest legendidest, kuuldustest ja teooriatest ning tema teoste autorsusest

Van Goghi kirjavahetus näitusel

Index Scriptorium Estoniae

2008-01-01

2010. aastal avatakse Londoni Royal Academys näitus Vincent van Goghi kirjadest. Näitusega kaasneb raamat "The Complete Correspondence of Van Gogh", mis sisaldab kirju originaalkeeles koos ingliskeelse tõlkega

Raamatulett / Jaanus Tamm

Index Scriptorium Estoniae

Tamm, Jaanus

1996-01-01

Grazie, Marie Eugenie delle. Raamat armastusest; Macdonald, Finlay. Minu noorusmaa; Duckwell, Ernest Simon. Misery Halli saladus; Van Dine, S. S. Greene'i mõrvajuhtum; Van Dine, S. S. Kanaarilinnu mõrvajuhtum

Kunstniku portree väikese tüdrukuna / Leena Kurvet-Käosaar

Index Scriptorium Estoniae

Kurvet-Käosaar, Leena, 1969-

2007-01-01

Viivi Luige "Seitsmes rahukevad" (Tallinn : Eesti Raamat, 1985) ja Aino Kallase "Katinka Rabe" (Tartus : Eesti Kirjanduse Selts, 1930) kui autobiograafilised romaanid, vaadeldakse peategelasi, nende suhteid lähedastega, naislooja subjektsuse kujutamist

Loodusõpetuse õppekirjanduse hindamise ja valiku põhimõtetest 1. klassi õpiku-tööraamatu näitel / Inge Timoštšuk

Index Scriptorium Estoniae

Timoštšuk, Inge

2001-01-01

Hinnang loodusõpetuse õppekirjanduse õppesisule ja metoodilisele esitatusele. Analüüsitud on õpikut : Leuhin, Illar ; Pärtel, Enn. Loodusõpetus : õpik-tööraamat 1. klassile. - Tallinn : Avita, 1999.

Emmanuel Levinasi piiripealne vabadus / Urve Eslas

Index Scriptorium Estoniae

Eslas, Urve, 1972-

2005-01-01

Arvustus: Emmanuel Levinas. Raske vabadus : esseid judaismist. Tallinn : Vagabund, 2004. (Avatud Eesti raamat). "Raske vabadus" on piiripealne keelekasutuselt, liigub religioossuse ja filosoofia piiril, Subjekti ja Teise piiril, teadliku ja eetilise vabaduse piiril

Ainsa eestlasena Pulitzeri võitnud Edmund Valtman pandi raamatusse / Riho Laurisaar

Index Scriptorium Estoniae

Laurisaar, Riho

2006-01-01

Tallinnas ilmus 2006. a. kirjastuselt Ilo Heiki Raudla raamat "Edmund Valtman, eestlane, kes võitis Pulitzeri". USA-sse emigreerunud Edmund Valtman (1914-2005) sai 1962. a. Kuuba-ainelise karikatuuri eest Pulitzeri auhinna

Vastse juubilari ajalood / Peeter Künstler

Index Scriptorium Estoniae

Künstler, Peeter, 1958-2009

1997-01-01

Arvustus: Remsu, Olev. Artur Magnussoni suur sõjasuvi : [lühiromaan]. Tallinn : Eesti Raamat, 1997; Remsu, Olev. Tšingis-khaan on Ungern-Sternberg : [näidend]. Tallinn : Perioodika, 1997. (Loomingu rmtk.; 35)

Videomuinasjutt algastme eesti keele tundi : miks ka mitte? / Ene Peterson

Index Scriptorium Estoniae

Peterson, Ene

2002-01-01

Rets. : Tungal, Leelo. Videomuinasjutt "Printsess Mari ja konn Konrad" [Videosalvestis] = A fairytale on video "Princess Mari and frog Konrad". - Tallinn : Elav Teadus, 1993. - 1 videokassett (VHS) (120 min) + 1 raamat (32 lk.)

Mida ihkab mu hing? / Toomas Raudam

Index Scriptorium Estoniae

Raudam, Toomas, 1947-

2003-01-01

Arvustus: Joyce, James. Pagulased : [näidend] / tõlkinud Jaak Rähesoo. Tallinn : Varrak, 2003. Ilmunud ka: Raudam, Toomas. Väike äratundmiste raamat. Tallinn : Eesti Keele Sihtasutus, 2006. Lk. 124-128

Estonskomu grazhdaninu Salo put v sibirskii less zakazan / Ljubov Semjonova

Index Scriptorium Estoniae

Semjonova, Ljubov

2004-01-01

Repressiivpoliitika uurimise komisjoni aruanne "Valge raamat" kommunistliku režiimi ajal Eestile tekitatud kahjudest. Komisjoni esimehe Vello Salo mõte nõuda kahjutasuks Novosibirski oblastis kasvavat metsa on Venemaal tekitanud ägeda resonantsi

Eerosest valgustatud / Rein Veidemann

Index Scriptorium Estoniae

Veidemann, Rein, 1946-

2002-01-01

Arvustus: Saarsen, Karin. Lõvi ja orhidee : [luuletused]. Tallinn : Eesti Raamat, 2002 ; Under, Marie. Under armastusest : [luuletused ja katkendid kirjadest] / valik ja järelsõna: Sirje Olesk. Tallinn : Tänapäev, 2002

[Rets. rmt. : Eliot A. Cohen. Supreme Command - Soldiers, Statesmen and Leadership in Wartime. 2003] / Margus Kolga

Index Scriptorium Estoniae

Kolga, Margus

2004-01-01

Raamat analüüsib tsiviil-militaarsuhteid ning sõjaväe tsiviiljuhtimist, kui palju peab tsiviilvõim sekkuma sõjapidamisse ja kaitseväe arendamisse, et strateegilised eesmärgid oleksid saavutatavad

Algas tulbikollektsioonide täiendamise hooaeg / Kristina Amor

Index Scriptorium Estoniae

Amor, Kristina

2008-01-01

Näitlejate Guido Kanguri ja Jaanus Orgulase tulbihuvist. Näitlejate ühisloominguna ilmus 2007. a. ka raamat "Dialoog tulpidega". Tegemist on tulbiteatmikuga, mis heidab pilgu ka näitlejate koduaeda ning lapsepõlve

Arulage arvepidamine / Jaan Puhvel

Index Scriptorium Estoniae

Puhvel, Jaan, 1932-

2007-01-01

Arvustus: Eesti kirjanduse biograafiline leksikon / Eesti NSV Teaduste Akadeemia Keele ja Kirjanduse Instituut ; toimetanud E. Nirk ja E. Sõgel. Tallinn : Eesti Raamat, 1975. Ilmunud: Books Abroad, 1976, nr. 50, lk. 440-441, pealkirjata

Kas müürilill prooviruumi nurgas või kardetud politseinik? / Maris Peters

Index Scriptorium Estoniae

Peters, Maris

2008-01-01

Andrew James Hartley raamatust "The Shakespearean dramaturg: a theoretical and practical guide" (2005). Raamat annab ülevaate dramaturgi võimalikest tööülesannetest, dramaturgia teoreetilisetest põhimõtetest ja praktilisest osast

Eesti joonisfilm taas edukas

Index Scriptorium Estoniae

2003-01-01

Riia I rahvusvahelisel animafilmide festivalil võitis "Kontsert porgandipirukale" parima animafilmi auhinna. Grand prix'i sai inglase Ignacio Ferreresi film "How to Cope With a Death". Žüriisse kuulus ka Rein Raamat

Mati Hindi põlvkonnapõhine meeleheiteraamat / Urmi Reinde

Index Scriptorium Estoniae

Reinde, Urmi, 1953-

2007-01-01

Mati Hindi raamatu "Minu vaade maale ja merele" Tallinn : TEA, 2007 esitlus toimus 7. juunil Pärnu Uue Kunsti Muuseumis. Mälestusteraamat pojast Madis Hindist (1970-2001) on raamat nelja sugupõlve Hintidest

Raamatud

Index Scriptorium Estoniae

2006-01-01

2006. a. Tallinnas kirjastuselt Tormikiri ilmunud Wolfgang Seitzi raamatust "Puidust kujunduselemendid koduaias", kirjastuselt Egmont Estonia ilmunud Brigitte Kleinodi raamatust "Koduaia arukas kujundamine", kirjastuselt Maalehe Raamat ilmunud Mart Ojasalu raamatust "Roosiaed : roosid - lilleilu liidrid"

Studying Antarctic Ordinary Chondrite (OC) and Miller Range (MIL) Nakhlite Meteorites to Assess Carbonate Formation on Earth and Mars

Science.gov (United States)

Evans, Michael Ellis

Carbonates are found in meteorites collected from Antarctica. The stable isotope composition of these carbonates records their formation environment on either Earth or Mars. The first research objective of this dissertation is to characterize the delta18O and delta 13C values of terrestrial carbonates formed on Ordinary Chondrites (OCs) collected in regions near known martian meteorites. The second objective is to characterize the delta18O and delta13C values of martian carbonates from Nakhlites collected from the Miller Range (MIL). The third objective is to assess environmental changes on Mars since the Noachian period. The OCs selected had no pre-terrestrial carbonates so any carbonates detected are presumed terrestrial in origin. The study methodology is stepped extraction of CO2 created from phosphoric acid reaction with meteorite carbonate. Stable isotope results show that two distinct terrestrial carbonate species (Ca-rich and Fe/Mg-rich) formed in Antarctica on OCs from a thin-film of meltwater containing dissolved CO2. Carbon isotope data suggests the terrestrial carbonates formed in equilibrium with atmospheric CO2 delta 13C = -7.5‰ at >15°C. The wide variation in delta 18O suggests the carbonates did not form in equilibrium with meteoric water alone, but possibly formed from an exchange of oxygen isotopes in both water and dissolved CO2. Antarctica provides a model for carbonate formation in a low water/rock ratio, near 0°C environment like modern Mars. Nakhlite parent basalt formed on Mars 1.3 billion years ago and the meteorites were ejected by a single impact approximately 11 million years ago. They traveled thru space before eventually falling to the Earth surface 10,000-40,000 years ago. Nakhlite samples for this research were all collected from the Miller Range (MIL) in Antarctica. The Nakhlite stable isotope results show two carbonate species (Ca-rich and Fe/Mg-rich) with a range of delta18O values that are similar to the terrestrial OC

Tsoon libiseb ajast ära nagu Kodaki slaididki / Laura Kuusk

Index Scriptorium Estoniae

Kuusk, Laura, 1982-

2006-01-01

Prantsuse kunstniku Dove Alluoche'i püüdest leida Arvo Iho abiga paigad, kus Andrei Tarkovski 28 aastat tagasi väntas filmi "Stalker", rekonstrueerides Sergei Didõki kaamera vahendusel Tarkovski vaatepunkte ja taastades "tsoonis" tolleaegset atmosfääri. Seeria "Tsoon" koosneb 13 fotost, mida eksponeeritakse Tallinnas, Pariisis, Bueonos Aireses ja mujal

Peer Gynti tagasitulek / Hilve Rebane

Index Scriptorium Estoniae

Rebane, Hilve, 1938-2012

1999-01-01

Arvustus: Ibsen, Henrik. Peer Gynt / tõlkinud Marie Under. 2. tr. Tallinn : Eesti Raamat, 1998. Ka "Peer Gynti" mõjutusi eesti kirjanduses: August Gailiti, Marie Underi, A. H. Tammsaare ja eriti Karl Ristikivi loomingus

Umberto Eco : olemise piire kombates / Marina Grishakova

Index Scriptorium Estoniae

Grišakova, Marina, 1961-

2004-01-01

Arvustus: Eco, Umberto. Eilse päeva saar / tõlkinud Merike Pau. Tallinn : Eesti Raamat, 2003 ; Eco, Umberto. Baudolino / itaalia keelest tõlkinud [ja järelsõna:] Ülar Ploom. Tallinn : Varrak, 2003

[Rets. rmt. : Stefan Halper, Jonathan Clarke. America Alone : The Neo-Conservatives and the Global Order. Cambridge 2004] / Maria Mälksoo

Index Scriptorium Estoniae

Mälksoo, Maria, 1979-

2005-01-01

Traditsiooniliste konservatiivide S. Halperi ja J. Clarki raamat harutab lahti neokonservatiivse ilmavaate, selle liikumise kujunemise ja mõjuvõimu laienemise ning näitavad, kuidas uuskonservatiivid võtsid võimu USA Riigidepartemangus ja Pentagonis

[Rets. rmt. : Glucksmann, Andre. Ouest contre Ouest. Pariis, 2003] / Malle Talvet

Index Scriptorium Estoniae

Talvet, Malle

2004-01-01

Prantsuse filosoofi Andre Glucksmanni raamat "Ouest contre Ouest" ehk "Lääs Lääne vastu" käsitleb rahvusvahelisi sündmusi 2002/2003, eelkõige Iraaki, terrorismi, Ameerika Ühendriike ja Prantsusmaad

Chanel ja Põhjamaa naised / Ingela Klemetz-Farago ; intervjueerinud Kristi Pärn-Valdoja

Index Scriptorium Estoniae

Klemetz-Farago, Ingela

2011-01-01

Rootsi fotograafi Peter Farago ja stilisti Ingela Klemetz-Farago koostatud raamatu "Northern Women in CHANEL" valmimise protsessist, koostööst Eesti modellidega. Raamat esitleb Chaneli moeloomingut ning 46 modelli Põhjamaadest ja Balti riikidest

Pöffihunt ulub juba 15. korda / Kaarel Kressa

Index Scriptorium Estoniae

Kressa, Kaarel, 1983-

2011-01-01

15. Pimedate Ööde Filmifestivali tutvustus. Põhiprogrammist, filmiturust, animafilmide festivalist Animated Dreams, laste- ja noortefilmide festivalist Just Film. Elutööpreemia saavad Rein Raamat, Rein Maran, Aleksandr Sokurov ja Fridrik Thor Fridriksson

Kolm Goncourt'i laureaati korraga / Marek Tamm

Index Scriptorium Estoniae

Tamm, Marek, 1973-

2002-01-01

Arvustus: Tournier, Michel. Haldjakuningas / tlk. Laine Hone. Tallinn : Eesti Raamat, 2002 ; Rouaud, Jean. Auväljad / tlk. Vladimir Indrikson. Tallinn : Atlantis, 2002 ; Roze, Pascale. Hävituslendur Zéro / tlk. Kaja Riesen. Tallinn : Olion, 2002

Kõrge tunnustus Peeter Mehistole

Index Scriptorium Estoniae

2008-01-01

Inglismaal välja antud raamatu "Uncovering CLIL: Content and Language Integrated Learning in Bilingual and Multilingual Education" (Macmillan, Oxford) eest Edinburgi hertsogi Inglise Keeles Kõnelejate Ühingu auhind- parim õpetajatele kirjutatud raamat 2008

Sajandi romaani üksildus / Aivar Kull

Index Scriptorium Estoniae

Kull, Aivar, 1955-

2003-01-01

Arvustus: García Márquez, Gabriel . Sada aastat üksildust : [romaan / tõlkinud Aita Kurfeldt]. 2. tr. Tallinn : Eesti Raamat, 2002. Vaata ka: Kull, Aivar. Kulli pilk. - Tartu : Ilmamaa, 2005, lk. 70-72

Eesti vajab oma Richelieu'd / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2006-01-01

Tutvustus: Faulkner, William. Sartoris / tõlkinud Vilma Jürisalu. Tallinn : Eesti Raamat, 2005 ; Runnel, Hando. Sinamu. Tartu : Ilmamaa, 2005 ; Levi, Anthony. Richelieu. Tallinn : Varrak, 2005 ; Lõvi, Oskar. Kolm naist [1-3]. Tallinn : Varrak, 2005

Kesta või hukkuda - ühiskonna vaba valik / Ekke Sööt

Index Scriptorium Estoniae

Sööt, Ekke

2005-01-01

Jared Diamondi raamat "Collapse" (Viking, 2005) toob välja viis peamist tegurit, mis põhjustasid enamike ajalooliste tsivilisatsioonide langemise: kliimamuutused, vaenulikud naabrid, kaubandussidemete katkemine, keskkonnaprobleemid ja lõpuks ühiskonna toimetulek oma probleemidega

Viljakaim kirjanik sai endaväärilise eluloo / Aivar Kull

Index Scriptorium Estoniae

Kull, Aivar, 1955-

2004-01-01

Arvustus: Kruus, Oskar. Bernard Kangro : elukäik ja looming : [1910-1994]. Tallinn : Eesti Raamat, 2003. Vaata ka: Kull, Aivar. Kulli pilk. - Tartu : Ilmamaa, 2005, lk. 425-427, pealkirjaga "Bernard Kangro on saanud oma eluloo"

Illusoorne autentsus / Toomas Paul

Index Scriptorium Estoniae

Paul, Toomas, 1939-

2000-01-01

Arvustus: Taylor, Charles. Autentsuse eetika / inglise k. tlk. Märt Väljataga. Tallinn : Hortus Litterarum, 2000. (Avatud Eesti raamat). Ilmunud ka kogumikus: Paul, Toomas. Kirik keset küla. Tartu : Ilmamaa, 2003, lk. 311-317

Ma olin Saddami poeg / Latif Jahija

Index Scriptorium Estoniae

Jahija, Latif

1995-01-01

Järg Jan/21.,28. lk. 7,5. L. Jahija sensatsiooniline raamat "Ma olin Saddami poeg", milles ta pajatab kuidas ta a. 1987-1991 oli Iraagi presidendi vanema poja teisik. Lühikokkuvõte sellest jutustusest

Uus raamatusari õpetajatele / Inga Kukk

Index Scriptorium Estoniae

Kukk, Inga

2003-01-01

Haridus- ja teadusministeerium hakkas välja andma tänapäeva pedagoogika raamatusarja "XXI sajandi kool". Ilmumas on esimene raamat: George Watson. Koolikäitumise käsiraamat. Kommenteerivad Jaan Kõrgesaar, Krista Sillar

Luuletuse mälukaja Ungarist kauge Põhjalani / Livia Viitol

Index Scriptorium Estoniae

Viitol, Livia, 1953-

2004-01-01

Arvustus: Mu ema must roos : XX sajandi teise poole ungari luule antoloogia. Tallinn : Varrak, 2004 ; Teisele poole sinist : luulet kümnelt maalt : tekste kolmandalt Põhjamaade luulefestivalilt Tallinnas 2003. aasta kevadel. Tallinn : Eesti Raamat, 2004

Kolm, keda miski ei seo / Veiko Märka

Index Scriptorium Estoniae

Märka, Veiko, 1964-

2004-01-01

Arvustus: Jõerüüt, Jaak. Uus raamat : [luuletused]. Tallinn : Tuum, 2004 ; Maiste, Juhan. In Arcadia ego : [luuletused]. Tallinn : J. Maiste, 2004 ; Essa, Maario. Kellegi teise muru : debüütluulekogu. Tallinn : SE & JS, 2004 ;

Ruumiinstallatsioon "Epitsenter" / Taavi Suisalu

Index Scriptorium Estoniae

Suisalu, Taavi

2011-01-01

Lõputöö eesmärgiks oli tekitada ruum, milles oleks võimalik nihestada oma igapäevast ajataju ja tajuda olemise keset. Süstematiseeritakse teadmisi, kuidas ajast on mõeldud ning kuidas suudame seda tajuda. Ka ajakäsitustest eesti ja ameerika installatsioonikunstis. Praktiliseks osaks on ruumiinstallatsioon, mille eesmärgiks on narratiivse ja sensoorse tunnetuse/ajakäsitluse vastanduse läbi tekitada olukord, kus oleks võimalik võimendatult tajuda oleviku mitmetahulisust, aimata/kogeda millegi üldisema kohalolu

Aukonsulid aitavad edendada kontakte Eestiga / interv. Kalev Vilgats

Index Scriptorium Estoniae

2008-01-01

Ülevaade Eesti aukonsulite viiendast konverentsist, millest võttis osa üle 70 aukonsuli rohkem kui 40 riigist. Lisad: Aukonsulid Eestis; Eesti konsulaatide ajalugu. Vt. samas: Kuidas sai teist Eesti aukonsul? Kui palju kulub teie ajast konsulitööle?; Mida arvavad teie tegevusest perekonnaliikmed ja sõbrad? Küsimustele vastavad Eesti aukonsul Moldovas Igor Goncearov, Eesti aukonsul Los Angeleses Jaak Treiman, Eesti aukonsul Tuneesias Abdeljelil Bouraoui, Eesti peaukonsul Sao Paulos Jüri Saukas. Arvamust avaldab ka Eesti välisminister Urmas Paet.

Большинство людей не имеет мнения / Валерий Соловей ; интервьюировал Таави Минник

Index Scriptorium Estoniae

Соловей, Валерий

2015-01-01

Intervjuu Venemaa Välisministeeriumi Moskva Riikliku Rahvusvaheliste Suhete Instituudi avalike suhete kateedri juhataja professor Valeri Soloveiga, kellelt ilmus raamat "Fake - absoluutne relv", mis keskendub meediamanipulatsioonidele ja propagandale. Nendel teemadel räägib ta ka intervjuus

Meediaekspert: vene inimesed väsivad infosõjast / Valeri Solovei ; intervjueerinud Taavi Minnik

Index Scriptorium Estoniae

Solovei, Valeri

2015-01-01

Intervjuu Venemaa Välisministeeriumi Moskva Riikliku Rahvusvaheliste Suhete Instituudi avalike suhete kateedri juhataja professor Valeri Soloveiga, kellelt ilmus raamat "Fake - absoluutne relv", mis keskendub meediamanipulatsioonidele ja propagandale. Nendel teemadel räägib ta ka intervjuus

On dumal naiti "Tretii put" / Boris Tuch

Index Scriptorium Estoniae

Tuch, Boris, 1946-

2007-01-01

Venemaa Kodusõja legendaarse tegelase Mahno elust ilmus Mihhail Velleril raamat "Mahno" ja Venemaal sai valmis 12-jaoline draamasari "Nestor Mahno üheksa elu" ("Devjat zhiznei Nestora Mahno"), režissöör Nikolai Kaptan

Pingevabalt / Priidu Beier

Index Scriptorium Estoniae

Beier, Priidu, 1957-

1995-01-01

Arvustus: Vee, Elo. Ingelheim. Tln.: Eesti Raamat, 1995. Vastukaja : Viiding, Elo. Kirjaniku nimest ja veest // Kultuurileht. - 1995. - 10.nov. - Lk.17; Kivisildnik, Sven. Intuitiivne geneetika ja ustavuse piirid // Postimees. - 1996. - 4.märts. - Lk.18

Viienda laevastiku esimene laev / Valdemar Vilder

Index Scriptorium Estoniae

Vilder, Valdemar

2006-01-01

ajaloolane Ann Smith tutvustas oma varsti ilmuvat raamatut "The First of the Fifth Fleet" 7. augustil Thirlmere Eesti Küla hallis. Raamat kirjeldab transpordilaeva General Stuart Heintzelman pardal Austraaliasse saabunud balti pagulaste reisiteekonda ja edasist saatust

Kodutunne kogu maailmas!

Index Scriptorium Estoniae

2002-01-01

2001. a. alanud rahvusvahelises lastekunsti projektis "Feeling at Home" ("Kodutunne") osales Eestist Sally Stuudio, kelle õpilaste popkunsti võtmes akrüülmaalid kodusest elust pälvisid kiidusõnu. Projekti kokkuvõttena ilmus Belgias raamat

Romantiline filosoofia / Aivar Kull

Index Scriptorium Estoniae

Kull, Aivar, 1955-

2004-01-01

Arvustus: Zweig, Stefan. Inimkonna tähetunnid : neliteist ajaloolist miniatuuri / tõlkinud Vilma Jürisalu. Tallinn : Eesti Raamat, 2003. Vaata ka: Kull, Aivar. Kulli pilk. - Tartu : Ilmamaa, 2005, lk. 76-77, pealkirjaga "Stefan Zweigi romantiline ajaloofilosoofia"

Brottse otpravljajetsja v put / Iosef Kats

Index Scriptorium Estoniae

Kats, Iosef

2007-01-01

Raimo Pullati koostatud kogumiku "Johann Christoph Brotze. Estonica" esitlustest Euroopa maades. Album sisaldab Johann Christoph Brotze kirjeldusi, akvarelle ning joonistusi 18. sajandi Eesti elu-olust. Raamat valmis Eesti, Läti ja Saksamaa spetsialistide koostöös

Ilmus teos "Rektor Johan Kõpp" / Aksel Mark

Index Scriptorium Estoniae

Mark, Aksel, 1913-2014

2007-01-01

rets. rmt.: Rohtmets, Priit. Rektor Johan Kõpp / toimetaja Mart Orav; resümeede tõlge: saksa keelde Reet Bender, inglise keelde Saskia Kangro, vene keelde A&A Lingua; kujundus Kalle Toompere. Tallinn : Aasta Raamat, 2007. 144 lk.

Lapsesamm Trullist Dostojevskini / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2011-01-01

Tutvustus: Raitar, Maie ; Sööt, Andres. Konrad Mägi. Kunstnik. Looming. Aeg. Tartu : Ilmamaa, 2011 ; Fitzgerald, F. Scott. Maipüha. Tallinn : Eesti Raamat, 2011 ; Trull, Ilmar. Väike viisakas kärbes. Tallinn : Varrak, 2011

Ühe novelli lugu : subjektiivne kirjanduslooline etüüd / Aivar Kull

Index Scriptorium Estoniae

Kull, Aivar, 1955-

2015-01-01

Mait Metsanurga pikemast novellist "Dora Praats", mis ilmus 1943. a. vene keeles; avaldatud ka 16-osalise järjejutuna Toronto ajalehes "Vaba Eestlane" (8. veebr. - 2. aprill 1958) ning Mait Metsanurga novellikogumikus "Kreeps" (Tallinn : Eesti Raamat, 2005)

Eestlased saadeti Marimaalt segaste põhjendustega välja / Jaak Prozes

Index Scriptorium Estoniae

Prozes, Jaak, 1965-

2005-01-01

Eesti Kunstiakadeemia poolt korraldatud 28. soome-ugri ekspeditsioon lõppes 17 Kunstiakadeemia tudengi väljasaatmisega Marimaalt kohalike võimude poolt. Lisa: Mõni marikeelne raamat aastas. Vt. samas: Rein Sikk. Suur mees, kes armastab väikseid

Книга смутила политиков США / Хендрик Восман

Index Scriptorium Estoniae

Восман, Хендрик

2010-01-01

John Heilemanni ja Mark Halperini raamat "Game Change: Obama and the Clintons, McCain and Palin, and the Race of a Lifetime" põhineb rohkem kui 300 intervjuul ja kajastab dramaatilisi ning kõmulisi seiku presidendivalimiste telgitagustest

Johan Kõpu pärand on mitmekülgne / Peep Pillak

Index Scriptorium Estoniae

Pillak, Peep

2008-01-01

rets. rmt.: Rohtmets, Priit. Rektor Johan Kõpp / toimetaja Mart Orav; resümeede tõlge: saksa keelde Reet Bender, inglise keelde Saskia Kangro, vene keelde A & A Lingua; kujundus Kalle Toompere. Tallinn : Aasta Raamat, 2007. 144 lk.

Parallelismus als Stilfigur in den Texten "Malina" und "Undine geht" von Ingeborg Bachmann / Katariina Perkiö

Index Scriptorium Estoniae

Perkiö, Katariina

2007-01-01

Ettekanne Ingeborg Bachmanni 80. sünniaastapäevaks pühendatud rahvusvaheliselt konverentsilt Tartus 12.-13. aprillil 2006. aastal. Parallelismist Ingeborg Bachmanni teostes "Malina" (e. k. Tallinn : Eesti Raamat, 1992) ja "Undine geht" (Leipzig : Reclam, 1985)

A pesquisa em saúde e os objetivos do milênio: desafios e oportunidades globais, soluções e políticas nacionais

Directory of Open Access Journals (Sweden)

Morel Carlos M.

2004-01-01

Full Text Available Saúde, ciência e tecnologia são requisitos para o desenvolvimento econômico e social. Os Objetivos de Desenvolvimento do Milênio da ONU para 2015 representam um imenso desafio para os países em desenvolvimento. Esses países terão de organizar sistemas de pesquisa em saúde baseados em prioridades sanitárias e assegurar a incorporação dos resultados às políticas e ações de saúde. Avanços na área biomédica, em particular em genômica, abrem novas oportunidades, mas impõem desafios adicionais. O Brasil, possuidor de um forte parque industrial e uma vigorosa comunidade científica, tem capacidade para desenvolver um sistema de pesquisas em saúde capaz de contribuir efetivamente para o cumprimento das metas da ONU.

Synthesis of highly efficient Mn2O3 catalysts for CO oxidation derived from Mn-MIL-100

Science.gov (United States)

Zhang, Xiaodong; Li, Hongxin; Hou, Fulin; Yang, Yang; Dong, Han; Liu, Ning; Wang, Yuxin; Cui, Lifeng

2017-07-01

In this work, metal-organic frameworks (MOFs) Mn-MIL-100 were first prepared, which were next used as templates to obtain the irregular porous Mn2O3 cubes through calcination with air at different temperature. The catalysts were characterized by N2 adsorption-desorption, X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), H2-temperature program reduction (H2-TPR) and X-ray photoelectron spectroscopic (XPS). The catalytic activity for CO oxidation over Mn2O3 catalysts was investigated. It was found that calcination temperature had a strong effect on the structure and catalytic activity of Mn2O3 catalyst. Mn2O3 catalyst obtained by calcined at 700 °C (Mn2O3-700) showed a smaller specific surface area, but displayed a high catalytic activity and excellent stability with a complete CO conversion temperature (T98) of 240 °C, which was attributed to the unique structure, a high quantity of surface active oxygen species, smaller particle size, oxygen vacancies and good low temperature reduction behavior. The effect of water vapor on catalytic activity was also examined. The introduction of water vapor to the feedstock induced a positive effect on CO oxidation over Mn2O3-700 catalyst. Furthermore, no obvious drop is observed in activity over catalysts even in the presence of water vapor during 48 h.

Seks on parem kui Pelevin / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2011-01-01

Tutvustus: Pelevin, Viktor. Libalooma Püha Raamat / tõlkinud Maiga Varik. Tallinn : Varrak, 2011 ; Weber, Andreas. Kõik me tunneme / tõlkinud Krista Räni. Tallinn : Varrak, 2011 ; Vella, Juri. Järvetuul / tõlkinud Art Leete. Tallinn : Varrak, 2011

Raamatupood kuusemetsa ja kadunud salliga / Ell-Maaja Randküla

Index Scriptorium Estoniae

Randküla, Ell-Maaja, 1939-2016

2005-01-01

Raamatukauplus Rahva Raamat Tallinnas Viru Keskuses. Sisekujundus: Margus Tammik ja Hannes Praks, OÜ Kohvi. Ehitaja: AS Merko Ehitus. H. Praksist ja M. Tammikust, nende tähtsamad tööd. Ill.: plaan 12 värv. vaadet

11. I avati rahvusraamatukogu peanäitusesaalis...

Index Scriptorium Estoniae

2006-01-01

Eesti Rahva Muuseumi fotonäitus "Inimnäoline islam". Väljas on paarikümne eesti harrastusfotograafi tehtud pildid. Näituse koostasid Leida Lepik, Jaanus Plaat ja Tiit Pruuli. Näitusega kaasneb raamat "Inimnäoline islam"

Ilmus lihtne ja asjalik poliitilise mõtte ABC / Rein Veidemann

Index Scriptorium Estoniae

Veidemann, Rein, 1946-

2005-01-01

Tartu Ülikooli eetikakeskus esitles inglise professori Jonathan Wolffi raamatut "Sissejuhatus poliitikafilosoofiasse". Esitlusel Tartus viibis ka raamatu autor, kes on Londoni ülikooli kolledzhi professor ja filosoofiaosakonna juhataja ning Briti filosoofiaühingu sekretär. Lisa: Raamat

Ettevaatust, šoti tantsu pisik! / Anu Mõttus

Index Scriptorium Estoniae

Mõttus, Anu

2006-01-01

Šoti keilitantsudest ja sellest, kuidas tantsud Eike Albert-Undi kaudu Eestisse jõudsid. Koostöös TLÜ rahvatantsuansambli Soveldajad juhi Angela Arraste ja Tallinna Ülikooliga on Eike Albert-Undil ilmunud ka raamat "Šoti keilitantsud"

Peasüüdistaja : Kosovo albaanlased lõikasid serbia vangidelt neerud / Krister Paris

Index Scriptorium Estoniae

Paris, Krister, 1977-

2008-01-01

Endise ÜRO tribunali peasüüdistaja Carla del Ponte raamatust "Jaht. Mina ja sõjakurjategijad", milles autor süüdistab Kosovo albaanlasi võigastes veretöödes. Vt. samas: Raamat aitab võimule radikaalid

Millest kõneleb Noam Chomsky? / Tiit Hennoste

Index Scriptorium Estoniae

Hennoste, Tiit, 1953-

2006-01-01

Eesti keeles ilmus Noam Chomsky raamat "Meedia ja võim". Anarhismitraditsioonide mõju, Chomsky meediamudel, võrdlus Eestis toimuvaga. Artikli autori arvates on Eesti pisike ühiskond just samasugune korporatiivne totalitaarne demokraatia nagu USA-s, kuigi nüanssidega

Art and the liberation of the film image / Karlo Funk

Index Scriptorium Estoniae

Funk, Karlo, 1971-

2000-01-01

Kujutava kunsti mõjutusi eesti filmikunstis. Reaalsuse kujutamine realismist erineva kujundikeele abil. Eesti kunstilise ja animafilmi arengust - rezissöörid K. Kiisk, G. Kromanov, A. Sööt, S. Keedus, P. Pärn, R. Raamat, R. Sarnet jt.

Loodusõpetuse õppekomplekt IV klassile : (ilmub 2002.a. sügiseks) / Tiina Elvisto

Index Scriptorium Estoniae

Elvisto, Tiina, 1957-

2002-01-01

Kirjastuselt Avita ilmub 2002.a. sügiseks 4. klassi bioloogia õppekomplekt, autoriteks Mart Kuurme, Vahur Laug ja Tiina Elvisto. Samadelt autoritelt, neljas kaasautor Kadri Maaste, ilmub Avitalt 2002.a. "Loodusõpetuse õpik-tööraamat 2. klassile"

Ene Sepp esitles esikteost "Medaljon" / Heli Talinurm

Index Scriptorium Estoniae

Talinurm, Heli

2009-01-01

Ene Sepp esitles 19. veebruaril Rapla Keskraamatukogus oma raamatut, mis pälvis kolmanda koha Eesti Lastekirjanduse Teabekeskuse ja kirjastuse Tänapäev 2008. aasta noorsooromaani võistlusel. Ly Ehini mõtteid, mida Ene Sepa raamat temas tekitas

FACE-TO-FACE: Balti börsihoone lugu

Index Scriptorium Estoniae

2016-01-01

Raamat käib käsikäes Ralf Lõokese, Maarja Kase ja Neeme Külma samanimelise kineetilise installatsiooniga ning tutvustab Londoni Balti börsihoone ebatavalist käekäiku ja selle jõudmist merekonteineritesse pakitult Eestisse

Reliikvia 33 aastat hiljem / Piret Tali

Index Scriptorium Estoniae

Tali, Piret, 1972-

2002-01-01

Soomes restaureeritud eesti menufilmi "Viimne reliikvia" (1969) taas Eestis ekraanile jõudmise eel korraldatud pressikonverentsilt Coca-Cola Plazas, kus kohal filmis osalenud näitlejad Ingrida Andrina, Aleksandr Goloborodko, Eve Kivi ja Uldis Vazdik, stsenarist Arvo Valton ja kunstnik Rein Raamat

Eesti funk vene pähe / Mart Kalm

Index Scriptorium Estoniae

Kalm, Mart, 1961-

1996-01-01

Raamat "Functional Architecture. The International Style. Funktionale Architektur. Le Style International. 1925- 1940" Saksa kirjastuselt Benedikt Taschen aastast 1990. Raamatus võib Sowjetunioni all lk. 322 leida foto A. Nürnbergi projekteeritud Pärnu hotellist "Vasa" (1938, praegu sanatoorium "Sõprus").

Britanskaja objektivnost i nash võbor / Boris Tuch

Index Scriptorium Estoniae

Tuch, Boris, 1946-

2007-01-01

Kaks uut teatriraamatut : "Oxfordi illustreeritud teatriajalugu", mille eestikeelse tõlke aluseks on 1995. aastal kirjastuses Oxford University Press ilmunud samanimeline raamat, koostajaks John Russell Brown ja Reet Neimari koostatud ja kommenteeritud teatriraamat "Sajandi sada sõnalavastust" (Eesti Entsüklopeediakirjastus, 2007)

Ilmus esimene mahukam eestikeelne teatriajaloo ülevaade / Andres Laasik

Index Scriptorium Estoniae

Laasik, Andres, 1960-2016

2007-01-01

25. jaan. esitleti Eesti Teatriliidus "Oxfordi illustreeritud teatriajaloo" eestikeelset versiooni. Tõlkeraamatu aluseks on 1995. aastal kirjastuses Oxford University Press ilmunud samanimeline raamat, mille koostajaks on John Russell Brown. Teose on tõlkinud Anne Lange, Ilona Kolberg, Piret Kruuspere, Kristjan Jaak Kangur

Absurd on igihaljas / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2006-01-01

Tutvustus: Camus, Albert. Õnnelik surm / tõlkinud Tanel Lepsoo. Tallinn : Varrak, 2005 ; Metsanurk, Mait. Kreeps / koost. Maire Liivamets. Tallinn : Eesti Raamat, 2005. (Eesti novellivara). Järg: 23. veebr., lk. 27, sisaldab Aivar Kulli kriitikakogu "Kulli pilk" (Ilmamaa, 2005) tutvustust

Sotsialismi muinasjutt : kui "sotsialistlik" oli Nõukogude Eesti kirjandus / Cornelius Hasselblatt ; inglise keelest tõlkinud Marju Roberts

Index Scriptorium Estoniae

Hasselblatt, Cornelius, 1960-

2015-01-01

Eesti kirjandusest 1940-1956. Lähemalt järgmistest romaanidest: Erni Krusteni "Pekside raamat" (1946), Osvald Toominga "Pruuni katku aastail" (1950), Aadu Hindi "Tuulise ranna" 1. osa (1956), Johannes Semperi "Punased nelgid"(1955) ja Rudolf Sirge "Maa ja rahvas" (1956)

Eesti retrospektiivse rahvusbibliograafia kolm köidet ilmunud / Anne Ainz

Index Scriptorium Estoniae

Ainz, Anne

1995-01-01

Bibl. 3 nim. Kokkuv. inglise k. lk. 151. Rets. rmt.: Eestikeelne raamat 1901-1917. A-P, II R-Y / Toim. Endel Annus. - Tln.: Eesti TA; Eestis ilmunud saksa-, vene- ja muukeelne perioodika 1675-1940 / Toim. E. Annus. Tln. : Eesti TA, 1993

The fairy tale of socialism : How "socialist" was the "new" literature in Soviet Estonia? / Cornelius Hasselblatt

Index Scriptorium Estoniae

Hasselblatt, Cornelius, 1960-

2003-01-01

Eesti kirjandusest 1940-1956. Lähemalt järgmistest romaanidest: Erni Krusteni "Pekside raamat" (1946), Osvald Toominga "Pruuni katku aastail" (1950), Aadu Hindi "Tuulise ranna" 1. osa (1956), Johannes Semperi "Punased nelgid"(1955) ja Rudolf Sirge "Maa ja rahvas" (1956)

Facebook tegi kinodes kahe päevaga võimsa avalöögi / Andres Laasik

Index Scriptorium Estoniae

Laasik, Andres, 1960-2016

2010-01-01

Režissöör David Fincheri filmi "Sotsiaalvõrgustik" (USA 2010) edust. Film jutustab Facebooki ühe asutaja Mark Zuckerbergi eduloo. Filmi aluseks on Ben Mezrichi raamat "Kogemata miljardärid: Facebooki asutamine, lugu seksist, rahast, geeniusest ja reetmisest"

Lastevihkaja Daniil Harms ja puuslik Leonid Iljitš Brežnev / Vaapo Vaher

Index Scriptorium Estoniae

Vaher, Vaapo, 1945-

2011-01-01

Tutvustus: Harms, Daniil. Väljapudunevad vanaeided / tõlkinud Ilona Martson ja Rein Saluri. Tallinn : Tänapäev, 2011 ; Bourget, Paul. Õpilane / tõlkinud Kattri Ezzoubi. Tallinn : Eesti Raamat, 2011 ; Mletšin, Leonid. Brežnev. Tallinn : Varrak, 2011

Karl Lagerfeld obidelsja

Index Scriptorium Estoniae

2006-01-01

Moekunstnik Karl Lagerfeld kaebas kohtusse raamatu "The Beautiful Fall : Fashion, Genius and Glorious Excess in 1970s Paris" autori Alicia Drake'i. Raamat räägib Lagerfeldi noorusajast ja tema konkurentsist moekunstnik Yves Saint Laurent'iga 1970. aastate Pariisis

"Sõjaraamatust teatati Eestisse minu soovil" / Toby Harnden ; intervjueerinud Raimo Poom

Index Scriptorium Estoniae

Harnden, Toby

2011-01-01

Intervjuu The Telegraphi ajakirjanikuga tema raamatust "Dead Men Risen" ("Surnust tõusnud mehed"), Eesti üksust käsitlevast osast. Ajakirjanik ei taha, et inimesed arvaksid, et see raamat või britid üldse mingilgi viisil alavääristaks eestlasi

Populism või normaliseerumine? / Jeroen Bult

Index Scriptorium Estoniae

Bult, Jeroen

2010-01-01

Autor leiab, et Saksamaa kõrge riigiametniku Thilo Sarrazini raamat "Deutschland schafft sich ab. Wie wir unser Land aufs Spiel setzen", milles ta kritiseerib islamiusulisi sisserändajaid, võiks algatada rahvusliku debati: millist laadi immigrante on vananeva elanikkonnaga Saksamaale vaja

Filmitäht Johnny Depp hakkab Aleksandr Litvinenkost filmi tegema / M. P.

Index Scriptorium Estoniae

M. P.

2007-01-01

Populaarse näitleja Johnny Deppi filmistuudio Infinitum Nihil teeb põnevusfilmi näitlejaga peaosas vene hiljuti plutooniumimürgitusse surnud dissidentliku luuraja A. Litvinenko elust, aluseks veel ilmumata Alan Cowelli raamat "Sasha lugu : Vene spiooni elu ja surm"

Experimental screening of porous materials for high pressure gas adsorption and evaluation in gas separations: application to MOFs (MIL-100 and CAU-10).

Science.gov (United States)

Wiersum, Andrew D; Giovannangeli, Christophe; Vincent, Dominique; Bloch, Emily; Reinsch, Helge; Stock, Norbert; Lee, Ji Sun; Chang, Jong-San; Llewellyn, Philip L

2013-02-11

A high-throughput gas adsorption apparatus is presented for the evaluation of adsorbents of interest in gas storage and separation applications. This instrument is capable of measuring complete adsorption isotherms up to 40 bar on six samples in parallel using as little as 60 mg of material. Multiple adsorption cycles can be carried out and four gases can be used sequentially, giving as many as 24 adsorption isotherms in 24 h. The apparatus has been used to investigate the effect of metal center (MIL-100) and functional groups (CAU-10) on the adsorption of N(2), CO(2), and light hydrocarbons on MOFs. This demonstrates how it can serve to evaluate sample quality and adsorption reversibility, to determine optimum activation conditions and to estimate separation properties. As such it is a useful tool for the screening of novel adsorbents for different applications in gas separation, providing significant time savings in identifying potentially interesting materials.

GUERRA, NACIÓN Y DERECHOS A LOS 112 AÑOS DE LA GUERRA DE LOS MIL DÍAS (1899-1902

Directory of Open Access Journals (Sweden)

Rafael Rubiano Muñoz

2011-11-01

Full Text Available A finales del siglo XIX, se produjo la Guerra de los Mil Días, acontecimiento abrupto de las confrontaciones acumuladas de las elites políticas colombianas en un largo ciclo. Bajo el dominio de los gobiernos de la Regeneración (1885-1902, se enfrentaron los conservadores nacionalistas, liderados por Miguel Antonio Caro, y los liberales radicales, dirigidos por Rafael Uribe Uribe, a quienes se les unieron circunstancialmente los conservadores históricos liderados por Carlos Martínez Silva y Marceliano Vélez. El artículo explora el sentido histórico y político de la guerra, se examinan sus consecuencias para el país, y sus incidencias en el siglo XX; se destacan en ese evento bélico, la pérdida de Panamá y la construcción del canal, la dictadura de Rafael Reyes conocido como el “quinquenio” y la propuesta del proyecto de Republicanismo, concebido por Carlos E. Restrepo, presidente entre 1910 a 1914, quien propuso una reforma constitucional, que planteaba las bases del Estado de derecho en Colombia.

Rahvusvaheline raamat Saaremaa vallutamisest / Raul Sulbi

Index Scriptorium Estoniae

Sulbi, Raul

2007-01-01

Arvustus: Toman, Marek. Saaremaad vallutamas : [lühijutud = The conquest of Saaremaa Island] / [illustreerinud] Jan Ungrád ; tšehhi keelest tõlkinud Leo Metsar ; ingliskeelne tekst: Mimi Rogers. Tallinn : Tiritamm, 2007

Puutööhuvilisele oma raamat

Index Scriptorium Estoniae

2006-01-01

2006. a. novembris ilmuvast Albert Jacksoni ja David Day "Puutöömeistri käsiraamatust". Albert Jackson ja David Day omandasid magistrikraadi mööblidisaini alal Londoni Kuninglikus Kunstikolledzhis. Raamatut on aidanud eesti lugejateni tuua Uku Velbri, kes 1991. a. lõpetas Tallinna Tehnikaülikoolis puidutöötlemise eriala

Inimene ja tema raamat / Katrin Kaugver

Index Scriptorium Estoniae

Kaugver, Katrin, 1950-

2008-01-01

Rets. rmt.: Omanikumärgid vanaraamatus : artiklite kogumik = Ownership marks in old books : collection of articles = Владельческий знак на старинной книге : сборник статей / Eesti Rahvusraamatukogu ; koostaja ja toimetaja Larissa Petina. Tallinn : Eesti Rahvusraamatukogu, 2008

Monumentide punane raamat / toimetanud Maris Meiessaar

Index Scriptorium Estoniae

2009-01-01

Maailma Monumentide Fond kuulutas 6. oktoobril välja 93 hävimisohu tõttu hoolt ja jälgimist vajavat monumenti. Tutvustatakse: Transilvaania kindluskirikud Rumeenias, müürid ja keltibeeride territoorium Numancias Hispaanias, Miami Marine'i staadion USA-s, Wonderwerki koobas Lõuna-Aafrikas, Podolski Jumalaema tunnustähe kirik Venemaal, Wamala hauakambrid Ugandas, hauakambrite jäänused Damiyas Jordaanias, Aghjotsi klooster Armeenias, 17. sajandil ehitatud linnamajad Kyotos Jaapanis, ajaloolised elumajad Heratis Afganistanis

Vabastav raamat kosmilisest totaalsusest / Kaido Floren

Index Scriptorium Estoniae

Floren, Kaido

2000-01-01

Arvustus: Strugatski, Arkadi, Strugatski, Boriss. Asustatud saar / tlk. Kalle Käsper ja Gohar Käsper-Markosjan. Tln: : Varrak, 1999. Vastukaja : Käsper, Kalle, Käsper-Markosjan, Gohar. Elementaarne, Watson! // Eesti Päevaleht : Arkaadia (2000) 15. jaan., lk. 10

[Raamat] / André Hesselbäck

Index Scriptorium Estoniae

Hesselbäck, André

1996-01-01

Arvustus: Die Areallinguistik am Beispiel syntaktischer Übereinstimmungen im Wolga-Kama-Areal. Wiesbaden, 1993. (Studia Uralica. Veröffentlichungen des Instituts für Finno-Ugristik der Universität Wien, Band 7)

Raamat või film? / Lauri Birkan

Index Scriptorium Estoniae

Birkan, Lauri

2005-01-01

Harri Potteri fänn süüvib neljanda J.K. Rowlingu Potteri raamatu ekraniseeringusse "Harry Potter ja tulepeeker" ("Harry Potter and the Goblet of Fire") : režissöör Mike Newell : Suurbritannia-USA 2005