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1

SearchMil.com  

NSDL National Science Digital Library

Developed by Beckstrom Software, this no-nonsense search engine claims to index approximately 785,000 pages in the .mil domain. Like the Google search engine, SearchMil.com caches the versions of pages that its robots find. This helps prevent errors from changed addresses, or in the case of the .mil domain, sites that have been subsequently pulled due to security concerns. Also like Google, SearchMil.com offers a simple keyword search interface and ranked returns that include brief excerpts from the site and links to the site or the cached version. While SearchMil contains more .mil domain pages than the other leading search engines, it is unclear what percentage is indexed, as the Pentagon itself doesn't know the exact size of the .mil domain.

2

MIL2TCAL  

... MIL2TCAL MISR Level 2 TOA/Cloud Albedo Data Stage 1 (Albedos) & 3 (Bidirectional reflectance factor (BRF) ... Parameters:  Local albedo values and statistics Restrictive albedo values and statistics Expansive albedo ...

2013-12-18

3

Toward the MIL-STD and MIL-HDBK for Project Support Environment Interfaces.  

National Technical Information Service (NTIS)

This document provides the necessary background information to create a military standard (MIL-STD) and military handbook (MIL-HDBK) for the project support environment interfaces (PSEI). Preliminary incomplete drafts of the MIL-STD and MIL-HDBK are inclu...

C. Schmiedekamp M. D. Shapiro

1992-01-01

4

MIL-STD-1760 Development Program.  

National Technical Information Service (NTIS)

The Joint Air Force/Navy program to develop MIL-SD-1760, Aircraft and Store Electrical Interconnection System, is described. The rationale for the program and the program approach and status is presented. Each of the three interface elements of MIL-STD-17...

C. M. Connell B. M. Sundstrom

1982-01-01

5

Comparative study of hydrogen sulfide adsorption in the MIL-53(Al, Cr, Fe), MIL-47(V), MIL-100(Cr), and MIL-101(Cr) metal-organic frameworks at room temperature.  

PubMed

Hydrogen sulfide gravimetric isotherm adsorption measurements were carried out on MIL-53(Al, Cr, Fe), MIL-47(V), MIL-100(Cr), and MIL-101(Cr) metal-organic frameworks (MOFs). A two-step adsorption mechanism related to a breathing effect was observed for MIL-53 terephthalate-based MOFs. Methane adsorption measurements highlighted the regenerability of MIL-53(Al, Cr) and MIL-47(V) MOFs after H(2)S treatment, whereas MIL-100 and MIL-101 CH(4) adsorption capacities were significantly decreased. PMID:19505146

Hamon, Lomig; Serre, Christian; Devic, Thomas; Loiseau, Thierry; Millange, Franck; Férey, Gérard; De Weireld, Guy

2009-07-01

6

MIL-STD-1553 interface application notes  

NASA Astrophysics Data System (ADS)

This paper describes Monolithic and Hybrid circuits used for interfacing to a MIL-STD-1553 Multiplex Data Bus. The focus in on how to implement smart and dumb remote terminals with existing devices. A menu table depicting product selection has also been provided. The implementation of Bus Controller (BC), Monitor and Remote Terminal Unit (RTU) interfaces, will be fully described using standard off the shelf products. Buffered Memory Interface, will complete the picture of the implementation of MIL-STD-1553 A or B. The MCE (Smith) LSI Chip Set for MIL-STD-1553B RTU and BC configurations will be described. Additional application topics covered will be the implementation of high speed data transfer circuitry, single, dual and quad redundant channel operation as well as implementing external status word controls. A summary of product sizes and power requirements associated with Bus Controller, RTU and Monitor applications will be provided.

Friedman, S. N.

1982-11-01

7

MIL-STD-1553 Interface Application Notes.  

National Technical Information Service (NTIS)

This paper describes Monolithic and Hybrid circuits used for interfacing to a MIL-STD-1553 Multiplex Data Bus. The focus in on how to implement smart and dumb remote terminals with existing devices. A menu table depicting product selection has also been p...

S. N. Friedman

1982-01-01

8

Proposed MIL-STD(Military Standard) for Avionics Installation Interfaces.  

National Technical Information Service (NTIS)

This paper describes the Military Standard (MIL-STD) now in development for avionics installation interface standardization. Originally based upon the interface standard used by the commercial airlines, this new MIL-STD, now extensively revised, is schedu...

G. Schopf

1982-01-01

9

1 mil gold bond wire study.  

SciTech Connect

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.

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

2013-05-01

10

Proposed Revision of Military Specification MIL-S-24201(SHIPS) Sewage Treatment Equipment Chlorinator-Macerator for Naval Shipboard Use.  

National Technical Information Service (NTIS)

A statistical evaluation of a variety of sewage treatment methods indicates that MIL-S-24201(SHIPS) should be revised with respect to performance requirements for the reduction of coliform most probable number density counts made after chlorination treatm...

D. J. Fisk H. H. Singerman

1969-01-01

11

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

NASA Technical Reports Server (NTRS)

The Kaguya mission detected small but widespread outcrops of nearly pure ferroan anorthosite in and around large impact basins on the Moon. Along with certain lunar rocks, highly feldspathic lunar meteorites such as MIL 090034 (M34), 090036 (M36), and 090070 (M70) may provide samples of this material. We have measured the Ar-40/Ar-39 release patterns and cosmogenic Ar-38 concentrations of several small (<200 microg) samples separated from M34,36, and 70. From petrographic observations concluded that "some of the clasts and grains experienced generations of modifications," a conclusion that we examine in light of our data.

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

2013-01-01

12

MIL-STD-1553 VLSI components  

NASA Astrophysics Data System (ADS)

The performance, physical and electrical characteristics of novel VLSI components which will support all MIL-STD-1553 terminals are described. A transceiver, protocol, and computer interface set of chips supports remote terminal unit, bus controller, and bus monitor modes of operation. A discussion of these VLSI components is given, and their special features are explored. These features include size and packaging options, radiation hardness, power, and reliability considerations. The special capabilities of these devices are highlighted, along with programming options that facilitate a broad array of applications.

Friedman, Steven N.

13

Mineralogy and Petrology of New Antarctic Nakhlite MIL 03346  

NASA Technical Reports Server (NTRS)

Among the approx.1300 meteorites returned from Antarctica by the 2003-2004 ANSMET expedition was a 715g nakhlite, MIL 03346, recovered from the Miller Range. Samples of this meteorite were distributed to investigators on December 16, 2004. We were allocated PTS MIL 03346,63,100. This abstract is our preliminary report on the mineralogy and petrology of this important new sample.

McKay, G.; Schwandt, C.

2005-01-01

14

Leak Testing of Pressurized-Bulkhead Mil Connectors.  

National Technical Information Service (NTIS)

An objective of a program cost-reduction effort was to replace a high-priced pair of custom Mil-style hermetically sealed connectors with a suitable pair of commercial-off-the-shelf (COTS), Mil-style connectors that would satisfy a 66 ft water submersion ...

M. R. Probst

2010-01-01

15

The removal of bisphenol A from aqueous solutions by MIL-53(Al) and mesostructured MIL-53(Al).  

PubMed

In this work, metal-organic framework MIL-53(Al){Al(OH)[O2C-C6H4-CO2]} and MIL-53(Al)-F127{Al(OH)[O2C-C6H4-CO2]} were synthesized and used as sorbents to remove bisphenol A (BPA) from aqueous system. The sorption kinetics data of BPA were found to be in agreement with the pseudo-second-order model. The equilibrium sorption amounts of BPA on MIL-53(Al) and MIL-53(Al)-F127 reached 329.2±16.5 and 472.7±23.6 mg g(-1), respectively, far more than that of commercial activated carbons (ranging from 129.6 to 263.1 mg g(-1)). Both MIL-53(Al) and MIL-53(Al)-F127 could remove BPA fast from aqueous solutions, and the required contact time to reach equilibrium was approximately 90 min for MIL-53(Al) and 30 min for MIL-53(Al)-F127, respectively. The optimum pH levels for the removal of BPA using MIL-53 (Al) and MIL-53(Al)-F127 were 4 and 6 separately. The optimum temperature for the sorption behavior of BPA on the two sorbents was 20 °C. The results performed show that the resulting products, as one kind of MOFs, can be regarded as a new class of sorbents for water treatment and could find great applications in the fields of environmental water pollution control and resources reuse. PMID:23764233

Zhou, Meimei; Wu, Yi-Nan; Qiao, Junlian; Zhang, Jing; McDonald, Amanda; Li, Guangtao; Li, Fengting

2013-09-01

16

Adsorption of pyridine onto the metal organic framework MIL-101.  

PubMed

The adsorption of pyridine onto the metal organic framework MIL-101 was investigated by experimental and theoretical methods. The amount of pyridine adsorbed on MIL-101 was extraordinarily large at 20 °C, corresponding to about 950 mg/g of dried MIL-101 and approximately half of the voids being filled. Most of the pyridine that had filled the voids was rapidly removed by evacuation at room temperature, but some of the pyridine was so strongly adsorbed that it was retained even under evacuation at 150 °C. Although IR spectra of the adsorbed pyridine indicated the adsorption of pyridine as pyridinium ions and coordinated pyridine at low temperatures, increasing the adsorption temperature induced partial cleavage of the pyridine rings. The high stabilization energy of pyridine on the coordinative unsaturated sites (CUS) of MIL-101, obtained by theoretical calculation, -103 kJ/mol, supported the strong adsorption of pyridine on the CUS. PMID:21700293

Kim, Mi Jin; Park, Se Min; Song, Sun-Jung; Won, Jiyeon; Lee, Jin Yong; Yoon, Minyoung; Kim, Kimoon; Seo, Gon

2011-09-15

17

Curation and Allocation of the New Antarctic Nakhlite, MIL03346  

NASA Technical Reports Server (NTRS)

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.

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

2005-01-01

18

Partially fluorinated MIL-47 and Al-MIL-53 frameworks: influence of functionalization on sorption and breathing properties.  

PubMed

Two perfluorinated metal hydroxo terephthalates [M(III)(OH)(BDC-F)]·n(guests) (M(III) = V, MIL-47-F-AS or 1-AS; Al, Al-MIL-53-F-AS or 2-AS) (BDC-F = 2-fluoro-1,4-benzenedicarboxylate; AS = as-synthesized) have been synthesized by a hydrothermal method using microwave irradiation (1-AS) or conventional electric heating (2-AS), respectively. The unreacted or occluded H(2)BDC-F molecules can be removed under vacuum by direct thermal activation or exchange of guest molecules followed by thermal treatment leading to the empty-pore forms of the title compounds [V(IV)(O)(BDC-F)] (MIL-47-F, 1) and [Al(III)(OH)(BDC-F)] (Al-MIL-53-F, 2). Thermogravimetric analysis (TGA) and temperature-dependent XRPD (TDXRPD) experiments indicate that the compounds are stable up to 385 and 480 °C, respectively. Both of the thermally activated compounds exhibit significant microporosity, as verified by N(2), CO(2), n-hexane, o- and p-xylene sorption analyses. The structural changes of 2 upon adsorption of CO(2), n-hexane, o- and p-xylene were highly influenced due to functionalization by -F groups, as compared to parent Al-MIL-53. The -F groups also introduce a certain degree of hydrophobicity into the frameworks, as demonstrated by the H(2)O sorption analyses. PMID:23381460

Biswas, Shyam; Rémy, Tom; Couck, Sarah; Denysenko, Dmytro; Rampelberg, Geert; Denayer, Joeri F M; Volkmer, Dirk; Detavernier, Christophe; Van Der Voort, Pascal

2013-03-14

19

The SMART MIL-STD-1553 bus adapter hardware manual  

NASA Technical Reports Server (NTRS)

The SMART Multiplexer Interface Adapter, (SMIA) a complete system interface for message structure of the MIL-STD-1553, is described. It provides buffering and storage for transmitted and received data and handles all the necessary handshaking to interface between parallel 8-bit data bus and a MIL-STD serial bit stream. The bus adapter is configured as either a bus controller of a remote terminal interface. It is coupled directly to the multiplex bus, or stub coupled through an additional isolation transformer located at the connection point. Fault isolation resistors provide short circuit protection.

Ton, T. T.

1981-01-01

20

MIL-H-8501B: Application to shipboard terminal operations  

NASA Technical Reports Server (NTRS)

The philosophy and structure of the proposed U.S. Military Specification for Handling Qualities Requirements for Military Rotorcraft, MIL-H-8501B, are presented with emphasis on shipboard terminal operations. The impact of current and future naval operational requirements on the selection of appropriate combinations of basic vehicle dynamics and usable cue environments are identified. An example 'walk through' of MIL-H-8501B is conducted from task identification to determination of stability and control requirements. For selected basic vehicle dynamics, criteria as a function of input/response magnitude are presented. Additionally, rotorcraft design development implications are discussed.

Cappetta, A. N.; Johns, J. B.

1993-01-01

21

Evaluation report for toggle switches: Micro Switch and Cutler-Hammer models per MIL-S-3950  

NASA Technical Reports Server (NTRS)

Several models of hermetically sealed toggle switches meeting the requirements of MIL-S-3950, were evaluated to determine the probability that they would withstand the environmental requirements of, and therefore be suitable for use on, the space shuttle vehicle. The evaluation was started with a comparison of the environmental requirements for space shuttle hardware. This was followed with in-house testing for those environments where a reasonably firm conclusion could not be drawn in the comparison. Space simulation, acceleration, and vibration testing were performed in-house.

Labberton, D.

1974-01-01

22

MIL-STD-1553 Multiplex Data Bus Word Formats.  

National Technical Information Service (NTIS)

The emphasis in this chapter is the development of data word and message formats for MIL-STD-1553 data bus applications. This chapter is intended as a guide to the designer to identify standard data words and messages that are being used in today's avioni...

1981-01-01

23

MIL-STD-1750A Microprocessor Chip Set Development.  

National Technical Information Service (NTIS)

Fairchild ARDL, under contract with General Dynamics/Fort Worth, is developing a high performance MIL-STD-1750A microprocessr chip set for use in embedded computer applications in U.S. Air Force avionic systems. This paper describes the development progra...

T. A. Longo D. Wilnai

1982-01-01

24

Open systems avionics network to replace MIL-STD-1553  

Microsoft Academic Search

Proposes a future method of avionics data communication. The need for this proposal results from the shortcomings in the current avionics architecture, video distribution network, and in the MIL-STD-1553 data communication system. The separately wired video and data communication systems can be combined to save weight, which is especially critical for rotorcraft. Aircraft, once fielded, have limited capacity for modification

John K. Murdock; James R. Koenig

2000-01-01

25

Genome Sequence of Thalassolituus oleivorans MIL-1 (DSM 14913T).  

PubMed

Thalassolituus oleivorans is one of the most prevalent marine gammaproteobacteria in microbial communities, emerging after oil spills in coastal, estuarine, and surface seawaters. Here, we present the assembled genome of strain T. oleivorans MIL-1 (DSM 14913(T)), which is 3,920,328 bp with a G+C content of 46.6%. PMID:23599290

Golyshin, Peter N; Werner, Johannes; Chernikova, Tatyana N; Tran, Hai; Ferrer, Manuel; Yakimov, Michail M; Teeling, Hanno; Golyshina, Olga V

2013-01-01

26

Volatility Characteristics of MIL-L-7808 Turbine Lubricants.  

National Technical Information Service (NTIS)

An investigation of MIL-L-7808 lubricant volatility was conducted using ASTM Test Methods D972 and D2878 and by using thermogravimetric analysis. This investigation was conducted to: (1) investigate wide variations in manufacturer's reported batch-to-batc...

H. A. Smith P. W. Centers

1975-01-01

27

Characterization of Used MIL-L-7808 Lubricants.  

National Technical Information Service (NTIS)

The objectives of this effort were 1) development of a minimum quality specification for acceptance of used MIL-L-7808 lubricants for reprocessing by the Dalton process and 2) assessing the proportion of reclaimable lubricant from samples collected from a...

R. A. Micallef A. T. B. P. Squires

1985-01-01

28

Tuning the breathing behaviour of MIL-53 by cation mixing.  

PubMed

A mixed cation MIL-53(Cr-Fe) MOF has been obtained by direct synthesis. Multiple experimental techniques have demonstrated the presence of a genuine mixed phase, leading to a breathing behaviour different from either of the single cation analogues. PMID:22968060

Nouar, Farid; Devic, Thomas; Chevreau, Hubert; Guillou, Nathalie; Gibson, Emma; Clet, Guillaume; Daturi, Marco; Vimont, Alexandre; Grenèche, Jean Marc; Breeze, Matthew I; Walton, Richard I; Llewellyn, Philip L; Serre, Christian

2012-10-21

29

Mineralogy and Petrology of New Antarctic Nakhlie Mil 03346.  

National Technical Information Service (NTIS)

Among the approximately 1300 meteorites returned from Antarctica by the 2003-2004 ANSMET expedition was a 715g nakhlite, MIL 03346, recovered from the Miller Range. Samples of this meteorite were distributed to investigators on December 16, 2004. We were ...

G. McKay C. Schwandt

2005-01-01

30

Genome Sequence of Thalassolituus oleivorans MIL-1 (DSM 14913T)  

PubMed Central

Thalassolituus oleivorans is one of the most prevalent marine gammaproteobacteria in microbial communities, emerging after oil spills in coastal, estuarine, and surface seawaters. Here, we present the assembled genome of strain T. oleivorans MIL-1 (DSM 14913T), which is 3,920,328 bp with a G+C content of 46.6%.

Golyshin, Peter N.; Werner, Johannes; Chernikova, Tatyana N.; Tran, Hai; Ferrer, Manuel; Teeling, Hanno; Golyshina, Olga V.

2013-01-01

31

Experimentally Determined Coordinates for Three MILS Hydrophones Near Ascension Island.  

National Technical Information Service (NTIS)

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 Ce...

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

1999-01-01

32

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

NASA Technical Reports Server (NTRS)

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.

Katz, Richard; Barto, Rod

2009-01-01

33

Evaluation of Mil-F-28861 filters and suppliers  

SciTech Connect

Over the last 20 years, a family of lowpass filters has been developed to eliminate electromechanical interference from power and signal lines in weapon systems. Since its inception, Sprague Electric in North Adams, Massachusetts, has produced this family of components on a line dedicated solely to these devices. Although at least seven other companies produce similar filters, suppliers are unwilling to build small quantities of components in a manner that is incompatible with their standard methods and equipment. The ability to fabricate products in small quantities on an occasional basis is an important factor in component development, and compatibility with commercially available devices enhances that ability. The Mil-F-28861/5 specifications, developed by the Defense Electronic Parts Supply Center, describe filters similar to those of the MC family. This report documents the evaluation of Mil-F-28861/5 filters acquired from the eight suppliers and serves as a basis for further development of specifications and suppliers.

Grieco, S.E. [Sandia National Labs., Albuquerque, NM (United States). Component Information and Management Dept.

1994-09-01

34

Minor Elements in Nakhlite Pyroxenes: Cr in MIL00346  

NASA Technical Reports Server (NTRS)

Nakhlites are olivine-bearing clinopyroxene cumulates. Based on petrographic characteristics, they may be divided into groups that cooled at different rates and may have been formed at different depths in a single flow. The order of cooling rate from slowest to fastest is NWA998MIL03346. Nakhlite cumulus pyroxene grains consist of large cores that are nearly homogeneous in major element composition surrounded by thin rims that are zoned to Fe-rich compositions. Detailed study of these pyroxenes is important because they retain a record of the crystallization history of the nakhlite magma. Moreover, because the composition of the nakhlite parent melt cannot be directly determined, inversion of the major and minor element composition of the cumulate pyroxene cores can be used to estimate the composition of that melt. Thus it is important to understand the major and minor element zoning in the cumulus pyroxenes. While major elements are nearly homogeneous, minor elements exhibit distinctive zoning patterns that vary from one nakhlite to another. This paper reports unusual Cr zoning patterns in pyroxenes from MIL03346 (MIL) and contrast these with pyroxenes from Y593.

McKay, G. A.; Schwandt, C.; Le, L.; Makishima, J.; Kurihara, T.

2006-01-01

35

Network Extender for MIL-STD-1553 Bus  

NASA Technical Reports Server (NTRS)

An extender system for MIL-STD-1553 buses transparently couples bus components at multiple developer sites. The bus network extender is a relatively inexpensive system that minimizes the time and cost of integration of avionic systems by providing a convenient mechanism for early testing without the need to transport the usual test equipment and personnel to an integration facility. This bus network extender can thus alleviate overloading of the test facility while enabling the detection of interface problems that can occur during the integration of avionic systems. With this bus extender in place, developers can correct and adjust their own hardware and software before products leave a development site. Currently resident at Johnson Space Center, the bus network extender is used to test the functionality of equipment that, although remotely located, is connected through a MILSTD- 1553 bus. Inasmuch as the standard bus protocol for avionic equipment is that of MIL-STD-1553, companies that supply MIL-STD-1553-compliant equipment to government or industry and that need long-distance communication support might benefit from this network bus extender

Marcus, Julius; Hanson, T. David

2003-01-01

36

MIL-STD-1553 dual redundant remote terminal superhybrid  

NASA Astrophysics Data System (ADS)

This paper describes the performance, physical and electrical characteristics of the BUS-65112 Superhybrid, which performs as a fully compliant MIL-STD-1553 Dual Redundant Remote Terminal Unit (RTU). A discussion of the Custom Monolithic LSI components implemented in the Superhybrid is included. The RTU's special features and capabilities is highlighted, along with special programming options which facilitate a broad array of applications. The BUS-65112 Superhybrid contains all the necessary control lines to allow easy Direct Memory Access (DMA). The interface timing, operational philosophy, and a block diagram highlighting the Superhybrid's functional architecture are included.

Friedman, S. N.

37

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

NASA Technical Reports Server (NTRS)

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.

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

2012-01-01

38

Experimentally Determined Coordinates for Three MILS Hydrophones Near Ascension Island  

SciTech Connect

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 in Table 1. 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; and Depths given in the original hydrophone installation report.

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

1999-11-19

39

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

PubMed

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. PMID:24690150

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

2014-05-23

40

Paired nakhlites MIL 090030, 090032, 090136, and 03346: Insights into the Miller Range parent meteorite  

NASA Astrophysics Data System (ADS)

Miller Range (MIL) 03346 is the most oxidized and least equilibrated nakhlite known and displays the highest amount of intercumulus phase. The discovery of three new nakhlites, MIL 090030, MIL 090032, and MIL 090136, in the Miller Range, Antarctica, geographically close to the location of MIL 03346, suggests that they may come from the same parent meteorite. In this study, we investigate the mineralogy and texture of cumulus and intercumulus phases, in situ major and trace element compositions for the cumulus phases, as well as pyroxene crystal size distribution patterns and spatial distribution patterns of MIL 090030, 090032, and 090136. Using these combined results, we conclude that the three nakhlites studied here are paired with MIL 03346. However, modal mineral abundances of MIL 090030, 090032, 090136, and 03346 exhibit variations indicating that a single sample of a Miller Range nakhlite is not modally representative of the parent meteorite and that analyses of multiple samples for a single nakhlite may be necessary to obtain representative modal data for placement in the cumulate pile. Our calculated parental melt composition based on all the paired samples confirms a previous study suggesting that the nakhlite parent melt crystallized as a closed system.

Udry, Arya; McSween, Harry Y., Jr.; Lecumberri-Sanchez, Pilar; Bodnar, Robert J.

2012-09-01

41

Detection of Common Warfighting Symbology (MIL-STD-2525) Air Symbols.  

National Technical Information Service (NTIS)

The Common Warfighting Symbology Standard Bravo version (MIL-STD- 2525B) is a contractual requirement for a number of Australian defence projects. To evaluate how well MIL-STD-2525B supports rapid and accurate detection of symbols in clutter the current s...

A. Arnold K. Fletcher S. Cockshell

2011-01-01

42

Molecular promoting of aluminium metal-organic framework topology MIL-101 by N,N - dimethylformamide  

PubMed Central

In-situ NMR and DFT modelling demonstrate that N,N-dimethylformamide (DMF) promotes the formation of metal-organic framework NH2-MIL-101(Al). In-situ NMR studies show that upon dissociation of an aluminium-coordinated aqua ligand in NH2-MOF-235(Al), DMF forms an HCl-DMF complex during synthesis. This reaction induces a transformation from the MOF-235 topology into the MIL-101 topology. Electronic Structure Density Functional Theory (DFT) calculations show that the use of DMF instead of water as synthesis solvent decreases the energy gap between the kinetically favored MIL-101 and the thermodynamically favored MIL-53 products. DMF therefore promotes the MIL-101 topology both kinetically and thermodynamically.

Goesten, Maarten G.; Magusin, Pieter C.M.M; Pidko, Evgeny A.; Mezari, Brahim; Hensen, Emiel J.M.; Kapteijn, Freek; Gascon, Jorge

2014-01-01

43

Preparation, characterization, and hydrogen storage capacity of MIL-53 metal-organic frameworks.  

PubMed

Metal organic frameworks (MOFs) are considered as most promising candidate for hydrogen storage material for practical application. MIL-53(Cr) MOFs were synthesized from Cr(NO3)3 x 9H2O combined with terephthalic acid organic linker. MIL-53(Cr) MOFs are octahedral in shape and the particle size was around 10 microm identified by FE-SEM. The cleaning of the MOFs crystals with different solvents at different warm temperature were found effective and approved to increase the specific surface area and porosity of MIL-53(Cr) MOFs. The XRD patterns represented that MIL-53(Cr) MOFs had well crystalline structures. Nitrogen adsorption isotherms show that Mil-53(Cr) has approximately type-I isotherm with a highest BET specific surface area of 1946 m2 g(-1) after treated with hot methanol. Hydrogen adsorption study shows that this material can store 0.45 wt.% of H2 measured at 303 K and 32 bar. The pre-edge XANES spectra confirm the existence of Cr(III) in crystalline framework of MIL-53(Cr) and the sharp feature at 6007 eV in XANES spectra represents the dipole-allowed electron transition from 1s to 4p(xy). In addition, EXAFS spectra indicate that MIL-53(Cr) metal organic frameworks structure has the Cr-O bond distance of 1.96 angstroms with a coordination number of 5.4. PMID:23763128

Lin, Kuen-Song; Adhikari, Abhijit Krishna; Tu, Mu-Ting; Wang, Chieh-Hung; Chiang, Chao-Lung

2013-04-01

44

How linker's modification controls swelling properties of highly flexible iron(III) dicarboxylates MIL-88.  

PubMed

A series of organically modified iron(III) terephthalate MIL-88B and iron(III) 4,4'-biphenyl dicarboxylate MIL-88D flexible solids have been synthesized and characterized through a combination of X-ray diffraction, IR spectroscopy, and thermal analysis (MIL stands for Material from Institut Lavoisier). The swelling amplitude of the highly flexible MOFs tuned by introducing functional groups onto the phenyl rings shows a clear dependence on the steric hindrance and on the number of groups per aromatic ring. For instance, while the introduction of four methyl groups per spacer in dried MIL-88B results in a large permanent porosity, introducing two or four methyl groups in MIL-88D allows an easier pore opening in the presence of liquids without drastically decreasing the swelling magnitude. The influence of the degree of saturation of the metal center and the nature of the solvent on the swelling is also discussed. Finally, a computationally assisted structure determination has led to a proposal of plausible structures for the closed (dried) and open forms of modified MIL-88B and MIL-88D and to evaluation of their framework energies subject to the nature of the functional groups. PMID:21950795

Horcajada, Patricia; Salles, Fabrice; Wuttke, Stefan; Devic, Thomas; Heurtaux, Daniela; Maurin, Guillaume; Vimont, Alexandre; Daturi, Marco; David, Olivier; Magnier, Emmanuel; Stock, Norbert; Filinchuk, Yaroslav; Popov, Dmitry; Riekel, Christian; Férey, Gérard; Serre, Christian

2011-11-01

45

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

PubMed

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. PMID:24308331

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

2013-12-26

46

MR-MIL: Manifold Ranking Based Multiple-Instance Learning for Automatic Image Annotation  

NASA Astrophysics Data System (ADS)

A novel automatic image annotation (AIA) scheme is proposed based on multiple-instance learning (MIL). For a given concept, manifold ranking (MR) is first employed to MIL (referred as MR-MIL) for effectively mining the positive instances (i. e. regions in images) embedded in the positive bags (i. e. images). With the mined positive instances, the semantic model of the concept is built by the probabilistic output of SVM classifier. The experimental results reveal that high annotation accuracy can be achieved at region-level.

Zhao, Yufeng; Zhao, Yao; Zhu, Zhenfeng; Pan, Jeng-Shyang

47

Electrostatic bonding of thin (approximately 3 mil) 7070 cover glass to Ta2O5 AR-coated thin (approximately 2 mil) silicon wafers and solar cells  

NASA Technical Reports Server (NTRS)

Electrostatic bonding (ESB) of thin (3 mil) Corning 7070 cover glasses to Ta2O5 AR-coated thin (2 mil) silicon wafers and solar cells is investigated. An experimental program was conducted to establish the effects of variations in pressure, voltage, temperature, time, Ta2O5 thickness, and various prebond glass treatments. Flat wafers without contact grids were used to study the basic effects for bonding to semiconductor surfaces typical of solar cells. Solar cells with three different grid patterns were used to determine additional requirements caused by the raised metallic contacts.

Egelkrout, D. W.; Horne, W. E.

1980-01-01

48

Correlating the EMC analysis and testing methods for space systems in MIL-STD-1541A  

NASA Technical Reports Server (NTRS)

A study was conducted to improve the correlation between the electromagnetic compatibility (EMC) analysis models stated in MIL-STD-1541A and the suggested testing methods used for space systems. The test and analysis methods outlined in MIL-STD-1541A are described, and a comparative assessment of testing and analysis techniques as they relate to several EMC areas is presented. Suggestions on present analysis and test methods are introduced to harmonize and bring the analysis and testing tools in MIL-STD-1541A into closer agreement. It is suggested that test procedures in MIL-STD-1541A must be improved by providing alternatives to the present use of shielded enclosures as the primary site for such tests. In addition, the alternate use of anechoic chambers and open field test sites must be considered.

Perez, Reinaldo J.

1990-01-01

49

Spectroscopic Comparison of Lafayette and MIL 03346 Vein-Filling Materials  

NASA Astrophysics Data System (ADS)

I characterize the phyllosilicate alteration in Lafayette using correlated Raman and EMP traverses, like those [1, 2] performed on ALHA 77005 and MIL 03346. Interpretations reflect the status of the WU database developed with the MMRS [4–6].

Kuebler, K. E.

2014-06-01

50

GRO 95577 and MIL 090292: The Most Aqueously Altered CR Chondrites  

NASA Astrophysics Data System (ADS)

The CR Chondrite group exhibits the full range of aqueous alteration. MIL 090292 is an aqueously altered chondrite with abundant phyllosilicate and oxides similar to GRO 95577. It appears to be the second fully altered CR2.0.

Harju, E. R.; Rubin, A. E.

2013-09-01

51

Biodegradation of Propylene Glycol-Based MIL-A-8243D Aircraft Deicer.  

National Technical Information Service (NTIS)

Biological degradation of propylene glycol in propylene glycol-based MIL-A-8243D aircraft deicer was investigated under conditions designed to simulate degradation in the environment. Shake flask, static flask, and static culture tube experiments were con...

W. J. Gooden

1998-01-01

52

The development of a standard electronic module with MIL-STD-1750A capabilities  

Microsoft Academic Search

This paper describes the development of a standard size and function electronic module to meet the requirements of aircraft technology advances and future military aircraft avionic systems. The standard electronic module developed utilizes a MIL-STD-1750A central processing unit and is designed for applications requiring a general data processor. Design goals included MIL-STD-1750A compatibility, nonvolatile, high speed memory, memory management options,

Joseph P. Fischer

1986-01-01

53

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

NASA Technical Reports Server (NTRS)

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.

Flanegan, Mark; Label, Ken

1992-01-01

54

Understanding the Colloidal Stability of the Mesoporous MIL-100(Fe) Nanoparticles in Physiological Media.  

PubMed

The colloidal and chemical stability of nanoparticles of the nontoxic and biodegradable iron(III) trimesate MIL-100(Fe) nanocarrier have been evaluated in the presence of a series of simulated physiological fluids for intravenous and oral administration. MIL-100(Fe) nanoparticles exhibit an appropriate colloidal stability and biodegradability, mainly dependent on both the nature of their physicochemical surface and the media composition, being a priori compatible with their biomedical use. PMID:24801765

Bellido, Elena; Guillevic, Mazheva; Hidalgo, Tania; Santander-Ortega, Manuel J; Serre, Christian; Horcajada, Patricia

2014-05-27

55

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

PubMed

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. PMID:24095999

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

2013-11-15

56

FADS: A demonstrator for MilComSat AOCS  

NASA Astrophysics Data System (ADS)

This project covers the attitude and orbit control systems (AOCS) research program being carried out as part of the MOD applied research program for AD CIS(OR)1. The project program is to evaluate the candidate sensor technologies and control algorithms, such as Kalman filters, which may be applied to future UK military ComSats. The specific needs of military satellites for robust and threat-resistant control are not offered by current civil technologies which normally use vulnerable earth sensors or RF pointing which is vulnerable to deception. The program is also to investigate ways of reducing control system complexity and improvements in attitude control precision by enabling structural modes to be controlled. The project examines the most promising attitude control system technologies required to support such future communications payloads. User requirements indicate a need for improved threat resistance and for narrower spot beams, and the program supports this perceived need by the use of improved sensors and control algorithms. Improved pointing on civil ComSats is normally by means of ground RF measurements to form a closed loop control system with the spacecraft. For threat reasons this method is unsuitable for military ComSats, and on-board sensors are therefore used. The use of Silicon array star or earth sensors are the most promising, and the sensor program is to concentrate on these. Limited development and available civil sensors will be considered. Experimental work is based on demonstrating and evaluating real hardware in-the-loop on an existing air bearing experimental rig. This offers the closest simulation of real flight performance that can be obtained. The program will develop the Filtered Attitude Determination System (FADS)rig to be fully representative of a MilSatCom satellite, threat-resistant AOCS solution, employing Silicon array star and earth sensors. Both the BAe Mosaic Earth Sensor (MES) nad Marconi Versatile Star Sensor (VSS) technologies show considerable potential as attitude sensors. The VSS and MES capabilities will be evalutated on the FADS rig.

Huddleston, Martin; Cope, Paul

1995-03-01

57

Pd nanoparticles supported on MIL-101: an efficient recyclable catalyst in oxidation and hydrogenation reactions.  

PubMed

Pd nanoparticles supported on the chromium terephthalate metal organic framework MIL-101 (Pd/MIL-101) in different loadings (0.9 and 4.5 wt%) have been successfully prepared through a simple Pd-acetate adsorption and reduction in acetone, and tested as catalyst for selected liquid phase oxidation and hydrogenation reactions. The materials were characterized by XRD, N2 adsorption--desorption isotherm, TEM, SEM-EDX and ICP analysis. The parent MIL-101 structure was found well preserved after formation of Pd nanoparticles and after catalytic reaction runs. The present catalyst afforded good activity and selectivity for the oxidation of benzyl alcohol to benzaldehyde with 85% conversion and 97% selectivity using air (1 atm) at 85 degrees C after 14 h. The catalyst also showed good activity in the hydrogenation of the C=C bond in alkenes to corresponding alkanes and also benzaldehyde to benzyl alcohol at room temperature using H2 (1 atm). Rigorous test results confirmed that Pd-nanoparticles supported on MIL-101 are responsible for the catalytic reactions occurred. Pd/MIL-101 was reusable several times without losing the structural integrity and initial activity, and demonstrated significantly higher catalytic activities than those by a commercial Pd catalyst supported on activated carbon. PMID:24745261

Bhattacharjee, Samiran; Kim, Jun; Ahn, Wha-Seung

2014-03-01

58

Transmission electron microscope analyses of alteration phases in martian meteorite MIL 090032  

NASA Astrophysics Data System (ADS)

The nakhlite group of martian meteorites found in the Antarctic contain varying abundances of both martian and terrestrial secondary alteration phases. The aim of this study was to use transmission electron microscopy (TEM) to compare martian and terrestrial alteration embodied within a single nakhlite martian meteorite find - MIL 090032. Martian alteration veins in MIL 090032 are composed of poorly ordered Fe-smectite phyllosilicate. This poorly-ordered smectite appears to be equivalent to the nanocrystalline phyllosilicate/hydrated amorphous gel phase previously described in the martian alteration veins of other nakhlites. Chemical differences in this nanocrystalline phyllosilicate between different nakhlites imply localised alteration, which occurred close to the martian surface in MIL 090032. Both structurally and compositionally the nakhlite nanocrystalline phyllosilicate shows similarities to the amorphous/poorly ordered phase recently discovered in martian soil by the Mars Curiosity Rover at Rocknest, Gale Crater. Terrestrially derived alteration phases in MIL 090032 include jarosite and gypsum, amorphous silicates, and Fe-oxides and hydroxides. Similarities between the mineralogy and chemistry of the MIL 090032 terrestrial and martian alteration phases suggest the alteration conditions on Mars were similar to those in the Antarctic. At both sites a small amount of fluid at low temperatures infiltrated the rock and became acidic as a result of the conversion of Fe2+ to Fe3+ under oxidising conditions.

Hallis, L. J.; Ishii, H. A.; Bradley, J. P.; Taylor, G. J.

2014-06-01

59

MIL 03443, a dunite from asteroid 4 Vesta: Evidence for its classification and cumulate origin  

NASA Astrophysics Data System (ADS)

The absence of dunite (>90 vol% olivine) in the howardite, eucrite, and diogenite (HED) meteorite suite, when viewed with respect to spectroscopic and petrologic evidence for olivine on Vesta, is problematic. Herein, we present petrologic, geochemical, and isotopic evidence confirming that Miller Range (MIL) 03443, containing 91 vol% olivine, should be classified with the HED clan rather than with mesosiderites. Similarities in olivine and pyroxene FeO/MnO ratios, mineral compositions, and unusual mineral inclusions between MIL 03443 and the diogenites support their formation on a common parent body. This hypothesis is bolstered by oxygen isotopic and bulk geochemical data. Beyond evidence for its reclassification, we present observations and interpretations that MIL 03443 is probably a crustal cumulate rock like the diogenites, rather than a sample of the Vestan mantle.

Beck, Andrew W.; Mittlefehldt, David W.; McSween, Harry Y., Jr.; Rumble, Douglas, III; Lee, Cin-Ty A.; Bodnar, Robert J.

2011-08-01

60

Raster data transfer test using GTX produced data: MIL-R-28002 Type 1 (Raster)  

SciTech Connect

The DoD Computer-aided Acquisition and Logistics Support (CALS) Test Network (CTN) is conducting tests of the military standard for the Automated interchange of Technical Information, MIL-STD-1840A, and its companion suite of specifications. The primary purpose of the CTN is to evaluate the effectiveness of the CALS standards for technical data interchange and to demonstrate the capability and operational suitability of these standards. This test was conducted to allow GTX to demonstrate their ability to generated a MIL-R-28002 data file. The objective was to evaluate their interpretation of the MIL-R-28002 standard thereby assist the CTN in substantiating the validity of the standards or recommending changes to these standards and the references to national or international standards.

Not Available

1990-06-14

61

Comparison of Ultrasound with Tensile Testing of Thermally Damaged Polyimide Insulated Wiring (MIL-W-81381)  

NASA Astrophysics Data System (ADS)

Ultrasonic measurements were performed on MIL-W-81381/7, /12, and /21 wire, a polyimide (Kapton®) insulated wire. The phase velocity for the 20-gauge MIL-W-81381/7 wire had a baseline value of 3023 +/- 78 m/s. After exposure to high temperatures, the wire's phase velocity rapidly increased, and reached an asymptotic value of 3598 +/- 20 m/s after 100 hours exposure. Similar responses were measured in other gauges. The baseline measurements of Young's moduli resulted in values of 5636 +/- 486, 7714 +/- 505, and 8767 +/- 292 KSI for the 20 ga, 16 ga, and 12 ga. wires respectively.

Madaras, Eric I.; Anastasi, Robert F.

2003-03-01

62

New monolithics shape the future MIL-STD-1553 to 1750A interfaces  

NASA Astrophysics Data System (ADS)

The design and operation of interface hardware to link a MIL-STD-1750A computer with a MIL-STD-1553 data bus are described in detail and illustrated with diagrams, tables of numerical specifications, and a photograph. Particular attention is given to the use of custom monolithic LSI devices to reduce cost and power requirements and increase ruggedness and reliability. The system employs a memory-mapped dual-access RAM approach and comprises a BUS-65600 dual redundant remote terminal unit, a bus controller, a bus monitor, and a BUS 66300 microprocessor interface unit.

Friedman, Steven N.

63

Characterization of three types of silicon solar cells for SEPS deep-space missions. Volume 2: Current voltage characteristics of Solarex textured P(+)8 to 10 mil, planar P(+)8 to 10 mil and planar P(+)2 mil cells as a function of temperature and intensity  

NASA Technical Reports Server (NTRS)

Three types of high performance silicon solar cells, textured P(+)8 to 10 mil, planar P(+)8 to 10 mil and planar P(+)2 mil were evaluated for their low temperature and low intensity (LTLI) performance. Sixteen cells of each type were subjected to 11 temperatures and 9 intensities. The textured P(+)8 to 10 mil cells provided the best performance both at 1 astronomical unit and at LTLI conditions. The average efficiencies of this cell were 14.5 percent at 1 solar constant/+25 C and 18.7 percent at 0.086 solar constant/-100 C.

Whitaker, A. F.; Little, S. A.; Wooden, V. A.

1980-01-01

64

Effect of MIL-C-6799, Type II, Sprayable, Strippable, Protective Coatings on Painted Substrates.  

National Technical Information Service (NTIS)

Strippable, sprayable, protective coating systems conforming to the Type II requirements of MIL-C-6799 were applied over test panels coated with paint systems currently used on Naval aircraft. The coated panels were exposed for 30 days to (1) a controlled...

D. Minuti

1968-01-01

65

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

National Technical Information Service (NTIS)

MIL 090001 is a large (approximately 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 e...

K. D. McKeegan L. P. Keller Z. D. Sharp

2012-01-01

66

Secondary Minerals in Martian Meteorite MIL 03346 as Detected by Raman Imaging Spectroscopy  

NASA Astrophysics Data System (ADS)

We report a preliminary study of MIL 03346,168 thin section by using the Raman imaging spectroscopy. Our goal is to get the spatial relationship of secondary hydrated minerals in this meteorite and to seek evidences that may hint their origins.

Ling, Z. C.; Wang, A.

2014-06-01

67

Rocket Propelled Grenade (RPG), RPG-7VM, MIL-STD-1660 Tests.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center and School (USADACS), Validation Engineering Division (SIOAC-DEV), was tasked by the U.S. Army Foreign Materiel Intelligence Battalion, IAM-T- CDR, to conduct MIL-STD-1660 tests on palletized Rocket Propelled Grenad...

W. R. Meyer

1995-01-01

68

Tuning functional sites and thermal stability of mixed-linker MOFs based on MIL-53(Al).  

PubMed

The MIXMOF concept has been applied to the metal-organic framework compound MIL-53(Al). The random incorporation of two different linker molecules (benzene-1,4-dicarboxylate and 2-aminobenzene-1,4-dicarboxylate) in the framework structure and its influence on thermal stability were proven using several complementary techniques (XRD, ATR-IR, MAS-NMR and TG). PMID:20372702

Marx, Stefan; Kleist, Wolfgang; Huang, Jun; Maciejewski, Marek; Baiker, Alfons

2010-04-28

69

Clip Crate Container, MIL-STD-1660 First Article Test (FAT).  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted First Article Test (FAT) per MIL-STD-1660, 'Design Criteria for Ammunition Unit Loads' on the Clip Crate Container manufactured by Transport Packaging Int...

J. L. Dugan

2003-01-01

70

Extended and functionalized porous iron(iii) tri- or dicarboxylates with MIL-100/101 topologies.  

PubMed

A series of nanometric isoreticular and/or functionalized analogues of the mesoporous environmentally-friendly iron(iii) polycarboxylates MIL-100/101 have been successfully synthesized. Their exceptional pore size, of up to 68 Å, together with their relatively good stability in solvents, makes them promising candidates for heterogeneous catalysis or inclusion of large molecules, among others. PMID:24836322

Horcajada, Patricia; Chevreau, Hubert; Heurtaux, Daniela; Benyettou, Farah; Salles, Fabrice; Devic, Thomas; Garcia-Marquez, Alfonso; Yu, Cihang; Lavrard, Hubert; Dutson, Claire L; Magnier, Emmanuel; Maurin, Guillaume; Elkaïm, Erik; Serre, Christian

2014-06-01

71

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

PubMed

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. PMID:22789671

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

2012-09-18

72

Variability in the performance of MIL-STD-810 sand testing  

NASA Astrophysics Data System (ADS)

Exotic Electro-Optics (EEO) recently completed a series of MIL-STD-810F, Method 510.4 sand erosion tests at multiple commercial testing sites. During this testing process, it became apparent that no two environmental test vendors are alike, even if MIL-STD-810F is specified in all cases. Three different test laboratories performing the same Method 510.4 sand test on identically fabricated samples yielded three different results. Ultimately, it is the responsibility of the Engineer to confirm that the test vendor"s equipment, processes, and procedures produce a test environment that is applicable and a result that is accurate based upon the customer specified test requirement and the MIL-STD-810 methodology. Some critical factors that determine the utility of a test are particle concentration, air velocity, particle size and composition, and the ability to maintain these parameters over test duration of up to 90 minutes. EEO has identified a number of parametric details critical to maximizing the stability and accuracy of MIL-STD-810F, Method 510.4, Procedure II sand testing. These strategies will be presented.

Jacoby, Keith T.

2005-05-01

73

Review of the V50 Ballistic Limit Requirements of MIL-A-46100.  

National Technical Information Service (NTIS)

This memorandum report is a by-product of that portion of an ongoing project entitled Improved High Hard Armor Steel (MIL-A-46100) which involves the creation of a computerized Armor Steel Database for the storage and analysis of ballistic test data obtai...

R. C. Grubinskas

1993-01-01

74

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

SciTech Connect

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.

AUKLAND,NEIL R.; HANLON,JAMES T.

1999-10-12

75

Introduction to the MIL-STD-1553B Serial Multiplex Data Bus.  

National Technical Information Service (NTIS)

MIL-STD-1553B is the latest issue of a series of serial, digital multiplex data bus standards first developed for use in military aircraft avionic systems in the early 1970s by the USAF. It has now become one of the most widely used data bus systems for r...

D. R. Bracknell

1988-01-01

76

Formation of low density hydrous iron oxide via conformal transformation of MIL-53(Fe).  

PubMed

Hydrous iron oxide materials with a predefined shape, photo-electrochemical activity, low density (estimated to be 0.32 g cm(-3)), and high fractal porosity (BET ca. 117 m(2) g(-1)) are formed via internal hydrolytic transformation of the crystalline metal-organic framework MIL-53(Fe) in dilute aqueous hydroxide. PMID:24091701

Pirzada, Talha J; MacGregor, Stuart A; Ahmed, Safeer; Edler, Karen J; Hamzah, Harina Amer; Jiang, Dongmei; Burrows, Andrew D; Mitchels, John M; Hassan, Ibrahim A I; Halls, Jonathan E; Marken, Frank

2013-11-21

77

Brønsted Instead of Lewis Acidity in Functionalized MIL-101Cr MOFs for Efficient Heterogeneous (nano-MOF) Catalysis in the Condensation Reaction of Aldehydes with Alcohols.  

PubMed

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-101Cr-NO2 catalysts can be recycled five times with very little loss in activity. The diacetalization activity of MIL-101Cr-NO2 decreases with the alcohol chain length from methanol over ethanol, n-propanol, n-butanol, to almost inactive n-pentanol, while conversions for benzaldehyde, paratolylaldehyde, 4-chlorobenzaldehyde, and cyclohexanone all reach 90% or more after 90 min. PMID:25006999

Herbst, Annika; Khutia, Anupam; Janiak, Christoph

2014-07-21

78

Potent anti-angiogenesis and anti-tumor activity of a novel human anti-VEGF antibody, MIL60.  

PubMed

Angiogenesis is crucial for tumor development, growth and metastasis. Vascular endothelial growth factor (VEGF) has been implicated in promoting solid tumor growth and metastasis via stimulating tumor-associated angiogenesis, and blocking the activity of VEGF can starve tumors. Avastin, which is a humanized anti-VEGF antibody, has been successfully applied in clinics since 2004. However, the price of Avastin is extremely high for Chinese people. Here, we report a novel human anti-VEGF neutralizing antibody, MIL60, which shows an affinity comparable to that of Avastin (the KD value of MIL60 was 44.5 pM, while that of Avastin was 42.7 pM). MIL60 displays favorable actions in inhibiting VEGF-triggered endothelial cell proliferation (the IC50 value of MIL60 was 31±6.4 ng/ml and that of Avastin was 47±8.1 ng/ml), migration (8 µg/ml or 0.8 µg/ml MIL60 versus the control: P<0.05) and tube formation (2 µg/ml or 0.2 µg/ml MIL60 versus the control: P<0.05) via the VEGFR2 signaling pathway. Moreover, MIL60 was shown to inhibit tumor growth and angiogenesis in vivo in xenograft models of human colon carcinoma and ovarian cancer using immunotherapy and immunohistochemistry analysis (MIL60 versus N.S.: P=0.0007; Avastin versus N.S.: P=0.00046). These data suggest that MIL60 is a potential therapeutic, anti-angiogenic agent. Our work provides a novel anti-VEGF antibody, which can be considered an anti-tumor antibody candidate and a new option for patients with various cancers. PMID:24608894

Yang, Jing; Wang, Qun; Qiao, Chunxia; Lin, Zhou; Li, Xinying; Huang, Yifei; Zhou, Tingting; Li, Yan; Shen, Beifen; Lv, Ming; Feng, Jiannan

2014-05-01

79

Probing the adsorption characteristic of metal-organic framework MIL-101 for volatile organic compounds by quartz crystal microbalance.  

PubMed

As volatile organic compounds (VOCs) are a major group of air pollutants, development of materials for efficient adsorption and removal of VOCs is of great significance in both environmental and analytical sciences. Here we report metal-organic frameworks (MOFs) MIL-101 for the effective adsorption of VOCs at atmospheric pressure. A simple device was designed for quartz crystal microbalance (QCM), and six VOCs with various functional groups and polarities, i.e., n-hexane, toluene, methanol, butanone, dichloromethane, and n-butylamine, were chosen as targets to probe the adsorption properties of MIL-101. The developed device allows measurement of the adsorption isotherms and monitoring of the dynamic process for the adsorption of VOCs on MOFs, and also provides a useful tool for characterization of MOFs. The adsorption isotherms of the VOCs on MIL-101 followed the Dubinin-Astakhov equation with the characteristic energy from 5.70 (methanol) to 9.13 kJ mol(-1) (n-butylamine), Astakhov exponent from 0.50 (n-butylamine) to 3.03 (n-hexane), and the limiting adsorption capacity from 0.08 (n-hexane) to 12.8 (n-butylamine) mmol g(-1). MIL-101 exhibited the strongest affinity to n-butylamine, but the weakest affinity to n-hexane. The determined Astakhov exponents and the isosteric heats of adsorption revealed the energetic heterogeneity of MIL-101. MIL-101 showed the most energetically homogeneous for n-hexane, but the most energetically heterogeneous for n-butylamine. The dynamic process of adsorption monitored by the QCM system demonstrated the distribution of the sorption sites within MIL-101. The metal sites within the MIL-101 were vital in adsorption process. MIL-101 gave much higher affinity and bigger adsorption capacity to VOCs than activated carbon, offering great potential for real applications in the adsorption and removal of VOCs. PMID:21500773

Huang, Chan-Yuan; Song, Ming; Gu, Zhi-Yuan; Wang, He-Fang; Yan, Xiu-Ping

2011-05-15

80

MIL-STD-1553 programmable dual redundant remote terminal, bus controller, bus monitor, unit  

NASA Astrophysics Data System (ADS)

The performance, physical and electrical characteristics of the BUS-65600 Superhybrid are described. The Superhybrid is a programmable, fully compliant MIL-STD-1553 Dual Redundant Remote Terminal Unit (RTU), BUS Controller (BC) or BUS Monitor (BM). It requires the BUS-63125 Dual Redundant Monolithic Hybrid Transceiver or two BUS-63102 Universal Transceivers for MIL-STD-1553B or McAir sinusoidal applications. A discussion of the custom Monolithic LSI components implemented in the Superhybrid is included. The special features and capabilities are highlighted, along with special programming options which facilitate a broad array of applications. The BUS-65600 Superhybrid has a Direct Memory Access (DMA) Computer Interface plus necessary control lines which are also described in detail.

Friedman, S. N.

81

MIL-STDS and PTTI: What's available and what needs to be done  

NASA Technical Reports Server (NTRS)

The systems developer who needs Precise Time and Time Interval (PTTI) capability has relatively little guidance in the form of military standards, particularly for systems using atomic clocks or other sources of very precise time and frequency. The existing standards, including MIL-STD-188-115, MIL-F-2991(EC), and DOD-STD-1399 are discussed. These documents were written several years ago and do not always reflect current practice or take advantage of more recent technology improvements. User needs have also changed over the years and some of those needs such as more detailed time codes are not being met. We will summarize what's available and what's good and bad about it. The second part will make suggestions about what should be done in the future to promote and facilitate good PTTI design practice. Topics will include clock performance parameters, environmental considerations, time codes, signal isolation, and time dissemination.

Murray, James A.; White, Joseph D.

1993-01-01

82

Interface For Dual-Channel MIL-STD-1553 Data Bus  

NASA Technical Reports Server (NTRS)

Digital electronic subsystem made of commercially available programmable logic arrays and discrete logic devices serves as interface between microprocessor and dual-channel MIL-STD-1553 data bus. Subsystem consumes only 800 mW of power. Provides flexibility in that it is controllable via firmware. Includes only two reading-and-writing ports: one for status and control signals, other for transmission and reception of data.

Davies, Bryan L.; Heaps, Timothy L.

1992-01-01

83

Military standards and SCATHA program update of MIL-STD-1541  

NASA Technical Reports Server (NTRS)

The elctromagnetic compatability requirements for space systems, 15 October 1973, to be met by industry contractors for spacecraft launch vehicles and other special space systems, are considered. Deficiencies in the existing standard with respect to spacecraft charge and discharge phenomena, the technical ramifications for generating a new standard, and the upgrading of MIL-STD-1541 with requirements supplied as a result of the SCATHA program are discussed.

Frankos, D. T.

1980-01-01

84

Raster data transfer test using Formtek produced data: MIL-R-28002 Type 1 (Raster)  

SciTech Connect

The DoD Computer-aided Acquisition and Logistics Support (CALS) Test Network (CTN) is conducting tests of the military standard for the Automated interchange of Technical Information, MIL-STD-1804A, and its companion suite of specifications. The CTN is a DoD sponsored confederation of voluntary participants from industry and government, managed by the Air Force Logistics Command. The primary purpose of the CTN is to evaluate the effectiveness of the CALS standards for technical data interchange and to demonstrate the capability and operational suitability of these standards. To this end, testing should represent the systems and applications in use by a large number of participants. Sampling a wide cross section of industry and government will gain feedback on the various interpretations of the standards and broaden the base of industry participation in the CALS initiative. This test was conducted to allow Formtek to demonstrate their ability to generated a MIL-R-28002 data file. The objective was to evaluate their interpretation of the MIL-R-28002 standard thereby assist the CTN in substantiating the validity of the standards or recommending changes to these standards and the references to national or international standards. Additionally, Quick Short Test Reports (QSTRs) are intended to promote industry and government participation in the CALS initiative, developing a level of confidence in the technology and furthering mission objectives.

Not Available

1990-06-14

85

Effects of the herbal formulation ColiMil on upper gastrointestinal transit in mice in vivo.  

PubMed

Clinical evidence suggests that the herbal formulation ColiMil (which contains Matricaria recutita flowers extract, Foeniculum vulgare fruit extract and Melissa officinalis aerial parts extract) is effective in the treatment of breastfed colic in infants. Therefore the effect of this phytotherapeutic formulation and its herbal constituents on upper gastrointestinal transit was investigated in mice in vivo. Oral administration of the herbal formulation (0.4-0.8 mL/mice) dose-dependently delayed upper gastrointestinal transit. Among the herbal components, Matricaria recutita extract (0.89 and 1.78 mg/mouse) and Melissa officinalis extract (6.46 and 12.92 mg/mouse), but not Foeniculum vulgare (8.21 and 16.42 mg/mouse), reduced motility significantly. These results suggest that ColiMil reduces upper gastrointestinal motility in mice, with a major contribution by Matricaria recutita and Melissa officinalis. These experimental data may be important to better understand the observation that the herbal formulation ColiMil improves colic in breastfed infants. PMID:17582592

Capasso, Raffaele; Savino, Francesco; Capasso, Francesco

2007-10-01

86

Characterization and receptor specific toxicity of two diphtheria toxin-related interleukin-3 fusion proteins DAB 389–mIL3 and DAB 389–(Gly 4Ser) 2mIL3  

Microsoft Academic Search

We have constructed two fusion proteins, DAB389–mIL-3 and DAB389-(Gly4Ser)2–mIL-3, in which the receptor-binding domain of diphtheria toxin is replaced by mouse interleukin-3 (IL-3). Cytotoxic activity of the fusion toxins was observed on three out of six cell lines assayed. This toxicity was mediated through binding to the IL-3 receptor as it was inhibited in a dose-dependent manner with murine IL-3

Dominique Liger; Johanna C vanderSpek; Carole Gaillard; Christophe Cansier; John R Murphy; Philippe Leboulch; Daniel Gillet

1997-01-01

87

A rationale for the large breathing of the porous aluminum terephthalate (MIL-53) upon hydration.  

PubMed

Aluminum 1,4-benzenedicarboxylate Al(OH)[O(2)C-C(6)H(4)-CO(2)]. [HO(2)C-C(6)H(4)-CO(2)H](0.70) or MIL-53 as (Al) has been hydrothermally synthesized by heating a mixture of aluminum nitrate, 1,4-benzenedicarboxylic acid, and water, for three days at 220 degrees C. Its 3 D framework is built up of infinite trans chains of corner-sharing AlO(4)(OH)(2) octahedra. The chains are interconnected by the 1,4-benzenedicarboxylate groups, creating 1 D rhombic-shaped tunnels. Disordered 1,4-benzenedicarboxylic acid molecules are trapped inside these tunnels. Their evacuation upon heating, between 275 and 420 degrees C, leads to a nanoporous open-framework (MIL-53 ht (Al) or Al(OH)[O(2)C-C(6)H(4)-CO(2)]) with empty pores of diameter 8.5 A. This solid exhibits a Langmuir surface area of 1590(1) m(2)g(-1) together with a remarkable thermal stability, since it starts to decompose only at 500 degrees C. At room temperature, the solid reversibly absorbs water in its tunnels, causing a very large breathing effect and shrinkage of the pores. Analysis of the hydration process by solid-state NMR ((1)H, (13)C, (27)Al) has clearly indicated that the trapped water molecules interact with the carboxylate groups through hydrogen bonds, but do not affect the hydroxyl species bridging the aluminum atoms. The hydrogen bonds between water and the oxygen atoms of the framework are responsible for the contraction of the rhombic channels. The structures of the three forms have been determined by means of powder X-ray diffraction analysis. Crystal data for MIL-53 as (Al) are as follows: orthorhombic system, Pnma (no. 62), a = 17.129(2), b = 6.628(1), c = 12.182(1) A; for MIL-53 ht (Al), orthorhombic system, Imma (no. 74), a = 6.608(1), b = 16.675(3), c = 12.813(2) A; for MIL-53 lt (Al), monoclinic system, Cc (no. 9), a = 19.513(2), b = 7.612(1), c = 6.576(1) A, beta = 104.24(1) degrees. PMID:15034882

Loiseau, Thierry; Serre, Christian; Huguenard, Clarisse; Fink, Gerhard; Taulelle, Francis; Henry, Marc; Bataille, Thierry; Férey, Gérard

2004-03-19

88

Four-Channel PC/104 MIL-STD-1553 Circuit Board  

NASA Technical Reports Server (NTRS)

The mini bus interface card (miniBIC) is the first four-channel electronic circuit board that conforms to MIL-STD-1553 and to the electrical-footprint portion of PC/104. [MIL-STD-1553 is a military standard that encompasses a method of communication and electrical- interface requirements for digital electronic subsystems connected to a data bus. PC/104 is an industry standard for compact, stackable modules that are fully compatible (in architecture, hardware, and software) with personal-computer data- and power-bus circuitry.] Prior to the development of the miniBIC, only one- and two-channel PC/104 MIL-STD-1553 boards were available. To obtain four channels, it was necessary to include at least two boards in a PC/104 stack. In comparison with such a two-board stack, the miniBIC takes up less space, consumes less power, and is more reliable. In addition, the miniBIC includes 32 digital input/output channels. The miniBIC (see figure) contains four MIL-STD-1553B hybrid integrated circuits (ICs), four transformers, a field-programmable gate array (FPGA), and an Industry Standard Architecture (ISA) interface. Each hybrid IC includes a MILSTD-1553 dual transceiver, memory-management circuitry, processor interface logic circuitry, and 64Kx16 bits of shared static random access memory. The memory is used to configure message and data blocks. In addition, 23 16-bit registers are available for (1) configuring the hybrid IC for, and starting it in, various modes of operation; (2) reading the status of the functionality of the hybrid IC; and (3) resetting the hybrid IC to a known state. The miniBIC can operate as a remote terminal, bus controller, or bus monitor. The FPGA provides the chip-select and data-strobe signals needed for operation of the hybrid ICs. The FPGA also receives interruption signals and forwards them to the ISA bus. The ISA interface connects the address, data, and control interfaces of the hybrid ICs to the ISA backplane. Each channel is, in effect, a MIL-STD-1553 interface that can operate either independently of the others or else as a redundant version of one of the others. The transformer in each channel provides electrical isolation between the rest of the miniBIC circuitry and the bus to which that channel is connected.

Cox, Gary L.

2004-01-01

89

Microwave-assisted solvothermal synthesis and optical properties of tagged MIL-140A metal-organic frameworks.  

PubMed

A series of tagged MIL-140A-R frameworks have been synthesized using a microwave-assisted solvothermal method. Compared with their UiO-66-R polymorphs, the absorption energies in the MIL-140A-R series (R = NH2, NO2, Br, Cl, and F) are extended toward the visible region because of the spatial arrangement of the linkers. PMID:24168698

Liang, Weibin; Babarao, Ravichandar; D'Alessandro, Deanna M

2013-11-18

90

Adsorption of volatile organic compounds by metal–organic frameworks MIL101: Influence of molecular size and shape  

Microsoft Academic Search

Adsorption of gaseous volatile organic compounds (VOCs) on metal–organic frameworks MIL-101, a novel porous adsorbent with extremely large Langmuir surface area of 5870m2\\/g and pore volume of 1.85cm3\\/g, and the influence of VOC molecular size and shape on adsorption were investigated in this study. We observed that MIL-101 is a potential superior adsorbent for the sorptive removal of VOCs including

Kun Yang; Qian Sun; Feng Xue; Daohui Lin

2011-01-01

91

Engineering the optical response of the titanium-MIL-125 metal-organic framework through ligand functionalization.  

PubMed

Herein we discuss band gap modification of MIL-125, a TiO2/1,4-benzenedicarboxylate (bdc) metal-organic framework (MOF). Through a combination of synthesis and computation, we elucidated the electronic structure of MIL-125 with aminated linkers. The band gap decrease observed when the monoaminated bdc-NH2 linker was used arises from donation of the N 2p electrons to the aromatic linking unit, resulting in a red-shifted band above the valence-band edge of MIL-125. We further explored in silico MIL-125 with the diaminated linker bdc-(NH2)2 and other functional groups (-OH, -CH3, -Cl) as alternative substitutions to control the optical response. The bdc-(NH2)2 linking unit was predicted to lower the band gap of MIL-125 to 1.28 eV, and this was confirmed through the targeted synthesis of the bdc-(NH2)2-based MIL-125. This study illustrates the possibility of tuning the optical response of MOFs through rational functionalization of the linking unit, and the strength of combined synthetic/computational approaches for targeting functionalized hybrid materials. PMID:23841821

Hendon, Christopher H; Tiana, Davide; Fontecave, Marc; Sanchez, Clément; D'arras, Loïc; Sassoye, Capucine; Rozes, Laurence; Mellot-Draznieks, Caroline; Walsh, Aron

2013-07-31

92

Graphite oxide/metal-organic framework (MIL-101): remarkable performance in the adsorptive denitrogenation of model fuels.  

PubMed

A highly porous metal-organic framework (MOF), MIL-101 (Cr-benzenedicarboxylate), was synthesized in the presence of graphite oxide (GO) to produce GO/MIL-101 composites. The porosity of the composites increased remarkably in the presence of a small amount of GO (<0.5% of MIL-101); however, further increases in GO reduced the porosity. GO also accelerated the synthesis of the MIL-101. The composites (GO/MIL-101) were used, for the first time, in liquid-phase adsorptions. The adsorptive removal of nitrogen-containing compounds (NCCs) and sulfur-containing compounds (SCCs) from model fuels demonstrated the potential applications of the composites in adsorptions, and the adsorption capacity was dependent on the surface area and pore volume of the composites. Most importantly, the GO/MIL-101 composite has the highest adsorption capacity for NCCs among reported adsorbents so far, partly because of the increased porosity of the composite. Finally, the results suggest that GO could be used in the synthesis of highly porous MOF composites, and the obtained materials could be used in various adsorptions in both liquid and gas/vapor phase (such as H2, CH4, and CO2 storage) adsorptions, because of the high porosity and functional GO. PMID:24299306

Ahmed, Imteaz; Khan, Nazmul Abedin; Jhung, Sung Hwa

2013-12-16

93

Potential Damage to Flight Hardware from MIL-STD-462 CS02 Setup  

NASA Technical Reports Server (NTRS)

The MIL-STD-462 CS02 conducted susceptibility test setup includes an audio transformer, with the secondary used as an inductor, and a large capacitor. Together, these two components form an L-type low-pass filter to minimize the injected test signal input into the power source. Some flight hardware power input configurations are not compatible with this setup and break into oscillation when powered up. This, in turn, can damage flight hardware. Such an oscillation resulted in the catastrophic failure of an item tested in the Goddard Space Flight Center (GSFC) Large electromagnetic compatibility (EMC) Test Facility.

Harris, Patrick K.; Block, Nathan F.

2003-01-01

94

Potential Damage to Flight Hardware from MIL-STD-462 CS02 Setup  

NASA Technical Reports Server (NTRS)

The MIL-STD-462 CS02 conducted susceptibility test setup, performed during electromagnetic compatibility (EMC) testing, consists of an audio transformer with the secondary used as an inductor and a large capacitor. Together, these two components form an L-type low-pass filter to minimize the injected test signal input into the power source. Some flight hardware power input configurations are not compatible with this setup and break into oscillation when powered up. This can damage flight hardware and caused a catastrophic failure to an item tested in the Goddard Space Flight Center (GSFC) Large EMC Test Facility.

Harris, Patrick K.; Block, Nathan F.

2002-01-01

95

MIL-STD-1553 Dual Redundant Remote Terminal Unit, BUS Controller and BUS Monitor Superhybrid  

NASA Astrophysics Data System (ADS)

This paper describes the performance, physical, and electrical characteristics of the BUS-65600 Superhybrid. The Superhybrid is a programmable, fully compliant MIL-STD-1553 Dual Redundant Remote Terminal Unit (RTU), BUS Controller (BC) and BUS Monitor (BM). The BUS-65600 requires an external transceiver, clock, and transformers to provide a fully functional terminal interface. A discussion of the next generation CMOS Silicon-On-Sapphire (SOS) single monolithic chip RTU/BC/BM is included. The special features and capabilities, along with special package technologies are highlighted. The Superhybrid has a Direct Memory Access computer interface plus special control lines which are fully described.

Friedman, Steven N.

96

Ar-Ar Dating of Martian Chassignites, NWA2737 and Chassigny, and Nakhlite MIL03346  

NASA Technical Reports Server (NTRS)

Until recently only three nakhlites and one chassignite had been identified among martian meteorites. These four exhibit very similar radiometric ages and cosmic ray exposure (CRE) ages, indicating that they may have derived from a common location on Mars and were ejected into space by a single impact. This situation is quite different from that of martian shergottites, which exhibit a range of radiometric ages and CRE ages (1). Recently, several new nakhlites and a new martian dunite (NWA2737) have been recognized. Here we report our results of Ar-39-Ar-40 dating for the MIL03346 nakhlite and the NWA2737 "chassignite", along with new results on Chassigny.

Bogard, D. D.; Garrison, D. H.

2006-01-01

97

Ar-39-Ar-40 Ages of Two Nakhlites, MIL03346 and Y000593: A Detailed Analysis  

NASA Technical Reports Server (NTRS)

Radiometric dating of martian nakhlites by several techniques have given similar ages of approx.1.2-1.4 Ga [e.g. 1, 2]. Unlike the case with shergottites, where the presence of martian atmosphere and inherited radiogenic Ar-40 produce apparent Ar-39-Ar-40 ages older than other radiometric ages, Ar-Ar ages of nakhlites are similar to ages derived by other techniques. However, even in some nakhlites the presence of trapped martian Ar produces some uncertainty in the Ar-Ar age. We present here an analysis of such Ar-Ar ages from the MIL03346 and Y000593 nakhlites.

Park, Jisun; Garrison, Daniel; Bogard, Donald

2007-01-01

98

MIL-C-38999 electrical connector applicability tests for on-orbit EVA satellite servicing  

NASA Technical Reports Server (NTRS)

MIL-C-38999 electrical connectors were tested for their applicability to the on-orbit EVA satellite servicing environment. The investigation provided a methodical approach to the evaluation of the human-machine interface of these connectors. The physical characteristics of thirty-five MIL-C-38999 connectors were tested in two simulated space environments, the NASA Johnson Space Center Weightless Environment Training Facility and an evacuated glovebox which incorporated the Extravehicular Maneuvering Unit series 3000 gloves. Physical characteristics of the connectors were documented, including operating torque and work profiles. STS crewmembers tested a select group of connectors in two WETF test and subjectively ranked the G&H PMM Wing-Tab connectors as most applicable to the on-orbit servicing environment. WETF performance times indicated that the G&H PMM Wing-Tab connector had the fastest operating time. The evacuated glovebox participants ranked the G&H 64600 Wing-Tab and the G&H PMM Wing-Tab connectors as those most applicable to the on-orbit servicing environment. During the evacuated glovebox tests, the G&H 64600 Wing-Tab connector had the fastest operating time.

Griffin, Thomas J.; Lewis, Ruthan

1989-01-01

99

Tourniquet-Free Hand Surgery Using the One-per-Mil Tumescent Technique  

PubMed Central

Background A pneumatic tourniquet is generally used to achieve a bloodless operation field in hand surgery. However, this has changed with tumescent solution-based wide-awake surgery. This study is a preliminary prospective case series study to elaborate the formula and indications of the tumescent technique in hand surgery without a tourniquet. Methods Seven patients (age range, 4 months to 37 years) underwent hand or upper extremity surgery for conditions such as nerve palsy, electric burn defect, fingertip injury, contracture, constriction ring syndrome, or acrosyndactyly. A "one-per-mil" tumescent solution (epinephrine 1:1,000,000+20 mg lidocaine/50 mL saline) was used to create a bloodless operating field without a tourniquet. Observation was performed to document the amount of solution injected, the operation field clarity, and the postoperative pain. Results The "one per mil" epinephrine solution showed an effective hemostatic effect. The tumescent technique resulted in an almost bloodless operation field in the tendon and in the constriction ring syndrome surgeries, minimal bleeding in the flap and contracture release surgeries, and acceptable bleeding in acrosyndactyly surgery. The amount of solution injected ranged from 5.3 to 60 mL. No patient expressed significant postoperative pain. Flap surgeries showed mixed results. One flap was lost, while the others survived. Conclusions Epinephrine 1:1,000,000 in saline solution is a potential replacement for a tourniquet in hand surgery. Further studies are needed to delineate its safety for flap survival.

2013-01-01

100

Adsorption of Carbon Dioxide by MIL-101(Cr): Regeneration Conditions and Influence of Flue Gas Contaminants  

PubMed Central

MIL-101(Cr) has drawn much attention due to its high stability compared with other metal-organic frameworks. In this study, three trace flue gas contaminants (H2O, NO, SO2) were each added to a 10 vol% CO2/N2 feed flow and found to have a minimal impact on the adsorption capacity of CO2. In dynamic CO2 regeneration experiments, complete regeneration occurred in 10?min at 328 K for temperature swing adsorption-N2-stripping under a 50?cm3/min N2 flow and at 348 K for vacuum-temperature swing adsorption at 20?KPa. Almost 99% of the pre-regeneration adsorption capacity was preserved after 5 cycles of adsorption/desorption under a gas flow of 10 vol% CO2, 100?ppm SO2, 100?ppm NO, and 10% RH, respectively. Strong resistance to flue gas contaminants, mild recovery conditions, and excellent recycling efficiency make MIL-101(Cr) an attractive adsorbent support for CO2 capture.

Liu, Qing; Ning, Liqi; Zheng, Shudong; Tao, Mengna; Shi, Yao; He, Yi

2013-01-01

101

Rb-Sr and Sm-Nd Isotopic Studies of Antarctic Nakhlite MIL 03346  

NASA Technical Reports Server (NTRS)

Nakhlites are olivine-bearing clinopyroxenites with cumulate textures, and probably came from Mars [e.g., 1]. A total of seven nakhlites have been identified so far. Unlike other martian meteorites (e.g., shergottites), nakhlites have been only moderately shocked and their original igneous textures are still well-preserved. Also, these meteorites have similarly older crystallization ages of approx.1.3 Ga compared to shergottites with ages of approx.0.18-0.57 Ga [e.g., 2]. MIL 03346 is characterized by abundant (approx.20 vol %) glassy mesostasis, indicating that it cooled rapidly and probably formed near the top [3] or at the bottom [4] of the chilled margin of a thick intrusive body. The mesostasis quenched from the trapped intercumulus liquid may provide information on the parent magma compositions of the nakhlites. In this report, we present Rb-Sr and Sm-Nd isotopic data for MIL 03346, discuss correlation of its age with those of other nakhlites and the nature of their source regions in the Martian mantle.

Shih, C.-Y.; Nyquist, L. E.; Reese, Y.

2006-01-01

102

Petrology and chemistry of MIL 03346 and its significance in understanding the petrogenesis of nakhlites on Mars  

NASA Astrophysics Data System (ADS)

Antarctic meteorite Miller Range (MIL) 03346 is a nakhlite composed of 79% clinopyroxene, ˜1% olivine, and 20% vitrophyric intercumulus material. We have performed a petrological and geochemical study of MIL 03346, demonstrating a petrogenetic history similar to previously discovered nakhlites. Quantitative textural study of MIL 03346 indicates long (>1 × 101 yr) residence times for the cumulus augite, whereas the skeletal Fe-Ti oxide, fayalite, and sulfide in the vitrophyric intercumulus matrix suggest rapid cooling, probably as a lava flow. From the relatively high forsterite contents of olivine (up to Fo43) compared with other nakhlites and compositions of augite cores (Wo38-42En35-40Fs22-28) and their hedenbergite rims, we suggest that MIL 03346 is part of the same or a similar Martian cumulate-rich lava flow as other nakhlites. However, MIL 03346 has experienced less equilibration and faster cooling than other nakhlites discovered to date. Calculated trace element concentrations based upon modal abundances of MIL 03346 and its constituent minerals are identical to whole rock trace element abundances. Parental melts for augite have REE patterns that are approximately parallel with whole rock and intercumulus melt using experimentally defined partition coefficients. This parallelism reflects closed-system crystallization for MIL 03346, where the only significant petrogenetic process between formation of augite and eruption and emplacement of the nakhlite flow has been fractional crystallization. A model for the petrogenesis of MIL 03346 and the nakhlites (Nakhla, Governador Valadares, Lafayette, Yamato-000593, Northwest Africa (NWA) 817, NWA 998) would include: 1) partial melting and ascent of melt generated from a long-term LREE depleted mantle source, 2) crystallization of cumulus augite (±olivine, ±magnetite) in a shallow-level Martian magma chamber, 3) eruption of the crystal-laden nakhlite magma onto the surface of Mars, 4) cooling, crystal settling, overgrowth, and partial equilibration to different extents within the flow, 5) secondary alteration through hydrothermal processes, possibly immediately succeeding or during emplacement of the flow. This model might apply to single - or multiple - flow models for the nakhlites. Ultimately, MIL 03346 and the other nakhlites preserve a record of magmatic processes in volcanic rocks on Mars with analogous petrogenetic histories to pyroxene-rich terrestrial lava flows and to komatiites.

Day, James M. D.; Taylor, Lawrence A.; Floss, Christine; McSween, Harry Y.

2006-04-01

103

Metal-organic framework MIL-101(Cr) for high-performance liquid chromatographic separation of substituted aromatics.  

PubMed

The diverse structures and pore topologies, accessible cages and tunnels, and high surface areas make metal-organic frameworks attractive as novel media in separation sciences. Here we report the slurry-packed MIL-101(Cr) column for high-performance liquid chromatographic separation of substituted aromatics. The MIL-101(Cr) packed column (5 cm long × 4.6 mm i.d.) offered high-resolution separation of ethylbenzene (EB) and xylene, dichlorobenzene and chlorotoluene isomers, and EB and styrene. The typical impurities of toluene and o-xylene in EB and styrene mixtures were also efficiently separated on the MIL-101(Cr) packed column. The column efficiencies for EB, m-dichlorobenzene, and m-chlorotoluene are 20000, 13000, and 10000 plates m(-1), respectively. The relative standard deviation for five replicate separations of the substituted aromatics was 0.2-0.7%, 0.9-2.9%, 0.5-2.1%, and 0.6-2.7% for the retention time, peak area, peak height, and half peak width, respectively. The MIL-101(Cr) offered high affinity for the ortho-isomer, allowing fast and selective separation of the ortho-isomer from the other isomers within 3 min using dichloromethane as the mobile phase. The effects of the mobile phase composition, injected sample mass, and temperature were investigated. The separation of xylene, dichlorobenzene, and chlorotoluene on MIL-101(Cr) was controlled by entropy change, while the separation of EB and styrene on MIL-101(Cr) was governed by enthalpy change. PMID:21809852

Yang, Cheng-Xiong; Yan, Xiu-Ping

2011-09-15

104

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

NASA Technical Reports Server (NTRS)

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.

Keller, Lindsay P.

2011-01-01

105

Evaluation of advanced microelectronics for inclusion in MIL-STD-975  

NASA Technical Reports Server (NTRS)

The approach taken by NASA and JPL (Jet Propulsion Laboratory) in the development of a MIL-STD-975 section which contains advanced technology such as Large Scale Integration and Very Large Scale Integration (LSI/VLSI) microelectronic devices is described. The parts listed in this section are recommended as satisfactory for NASA flight applications, in the absence of alternate qualified devices, based on satisfactory results of a vendor capability audit, the availability of sufficient characterization and reliability data from the manufacturers and users and negotiated detail procurement specifications. The criteria used in the selection and evaluation of the vendors and candidate parts, the preparation of procurement specifications, and the status of this activity are discussed.

Scott, W. Richard

1991-01-01

106

Evaluation of advanced microelectronics for inclusion in MIL-STD-975  

NASA Astrophysics Data System (ADS)

The approach taken by NASA and JPL (Jet Propulsion Laboratory) in the development of a MIL-STD-975 section which contains advanced technology such as Large Scale Integration and Very Large Scale Integration (LSI/VLSI) microelectronic devices is described. The parts listed in this section are recommended as satisfactory for NASA flight applications, in the absence of alternate qualified devices, based on satisfactory results of a vendor capability audit, the availability of sufficient characterization and reliability data from the manufacturers and users and negotiated detail procurement specifications. The criteria used in the selection and evaluation of the vendors and candidate parts, the preparation of procurement specifications, and the status of this activity are discussed.

Scott, W. Richard

1991-03-01

107

A dual speed, MIL-STD-1553B compatible fiber optic data bus  

NASA Astrophysics Data System (ADS)

A demonstration system of a dual speed, fiber optic data bus is described. This work is based on a previously described concept (1) which envisioned a data bus populated with MIL-STD-1553B avionic components which evolve as equipment is upgraded to higher data rates. The approach described herein provides for the coexistence of bus nodes operating at 1 Mb/s, and 20 Mb/s, on a single fiber bus medium. The 1 Mb/s interface of each node is 1553B compatible, making use of readily available hardware and software. Both existing, 1 Mb/s 1553B compatible interfaces and new equipment operating at 20 Mb/s have been shown to work simultaneously on the single bus structure. The design provides a sound, low-risk method for transitioning from current 1 Mb/s equipment to a unified bus structure incorporating both existing 1553B compatible components and newly designed higher speed equipment.

Blaha, M. S.; Degennaro, C. H.; Utley, S. F.

108

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

NASA Astrophysics Data System (ADS)

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.

Friedman, S. N.

109

Reliability improvement of 1 mil aluminum wire bonds for semiconductors, technical performance summary  

NASA Technical Reports Server (NTRS)

The reliability of semiconductor devices as influenced by the reliability of wire bonds used in the assembly of the devices is investigated. The specific type of failure dealt with involves fracture of wire bonds as a result of repeated flexure of the wire at the heel of the bond when the devices are operated in an on-off mode. The mechanism of failure is one of induced fracture of the wire. To improve the reliability of a chosen transistor, one-mil diameter wires of aluminum with various alloy additions were studied using an accelerated fatigue testing machine. In addition, the electroprobe was used to study the metallurgy of the wires as to microstructure and kinetics of the growth of insoluble phases. Thermocompression and ultrasonic bonding techniques were also investigated.

1971-01-01

110

Goals and Progress for Mil Handbook 17, Vol. 5 on Ceramic Matrix Composites: Testing and Characterization  

NASA Technical Reports Server (NTRS)

The initial edition of the Mil Handbook 17, Vol. 5 on ceramic matrix composites (CMCs) was recently published. Part C of this CMC volume describes procedures for characterization of the thermal, physical, and mechanical properties of CMCs and subsequent data analysis procedures. As is the case for entire CMC volume, this chapter is a "work in progress" with sections on recommended test plans and matrices, data reduction, and test methods. This presentation will describe the current status in development of this section of the CMC volume and will highlight examples of critical issues that will be addressed in this volume. CMC systems are a different class of material than metals or polymer matrix composite with different mechanical response and failure modes, design rules, test methods, and characterization techniques. The CMC test protocols need to include guidance on how to generate enough reliable data in order to estimate, with reasonable confidence, the lower bounds of performance properties, such as strength and life. Strength data sets on two material systems, C/SiC and Nicalon/SiNC, and a creep rupture data set on C/SiC, will be presented to highlight this issue. The structural properties of CMC parts can sometimes be significantly different than those obtained from flat panels because of changes in fiber architecture often required to make shapes and spatial and lot-to-lot variations in processing conditions. To illustrate an example, the hoop tensile properties of SiC/SiC cylinders will be compared to properties obtained from flat panels fabricated from the same composites. These CMC testing-design issues are being defined and documented in the Mil Handbook 17 CMC volume.

Verrilli, Michael J.; Gonczy, Stephen

2004-01-01

111

Characterization and receptor specific toxicity of two diphtheria toxin-related interleukin-3 fusion proteins DAB389-mIL-3 and DAB389-(Gly4Ser)2-mIL-3.  

PubMed

We have constructed two fusion proteins, DAB389-mIL-3 and DAB389-(Gly4Ser)2-mIL-3, in which the receptor-binding domain of diphtheria toxin is replaced by mouse interleukin-3 (IL-3). Cytotoxic activity of the fusion toxins was observed on three out of six cell lines assayed. This toxicity was mediated through binding to the IL-3 receptor as it was inhibited in a dose-dependent manner with murine IL-3 or anti-IL-3 neutralizing antibodies. DAB389-(Gly4Ser)2-mIL-3 was up to 5 times more toxic than DAB389-mIL-3, depending on the cell line (0.8 x 10(-10) M < IC50 < 3 x 10(-10) M). These proteins can be used for the detection of IL-3 receptors on mouse cells and should allow for the selective elimination of IL-3 receptor-positive pluripotent hematopoietic stem cells prior to bone marrow transplantation. PMID:9109408

Liger, D; vanderSpek, J C; Gaillard, C; Cansier, C; Murphy, J R; Leboulch, P; Gillet, D

1997-04-01

112

Analysis of Expedient Field Decontamination Methods for the XMX/2L-MIL High-Volume Aerosol Sampler.  

National Technical Information Service (NTIS)

The XMX/2L-MIL is a high volume air sampler used by the Air Force Bioenvironmental Engineering community to collect biological aerosols. Without a verified decontamination technique, however, the XMX cannot be used effectively. The objective of this study...

B. C. LaRoche

2009-01-01

113

Evidence of photoinduced charge separation in the metal-organic framework MIL-125(Ti)-NH2.  

PubMed

Herein, we describe the photochemical behavior of the porous metal-organic framework MIL-125(Ti)-NH(2), built up from cyclic Ti(8)O(8)(OH)(4) oxoclusters and 2-aminoterephthalate ligands. While MIL-125(Ti)-NH(2) does not emit upon excitation at 420 nm, laser flash photolyses of dry samples (diffuse reflectance) or aqueous suspensions (transmission) of the solid have allowed detecting a transient characterized by a continuous absorption from 390 to 820 nm decaying in the sub-millisecond timescale, which is quenched by oxygen. This transient has been attributed to the charge-separation state. Firm evidence for this assignment was obtained by lamp irradiation of aqueous suspensions of MIL-125(Ti)-NH(2) in the presence of electron-donor (N,N,N'N'-tetramethyl-p-phenylenediamine) or electron-acceptor (methylviologen) probe molecules, which has allowed the visual detection of the corresponding radical ions, in agreement with the occurrence of photoinduced charge separation in MIL-125(Ti)-NH(2). PMID:22907833

de Miguel, Maykel; Ragon, Florence; Devic, Thomas; Serre, Christian; Horcajada, Patricia; García, Hermenegildo

2012-11-12

114

PA116/171 Containers ona Wood Pallet With Metal Top Adapter, MIL-STD- 1660, First Article Tests.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted First Article Tests per MIL-STD-1660, 'Design Criteria for Ammunition Unit Loads' on the PA116/171 containers on a wood pallet with metal top adapter prov...

J. L. Dugan

2003-01-01

115

Similarities Between Aqueous Alteration of CR2 and CM2 Chondrites: MIL 07525, LAP 04516 and GRO 95577  

NASA Astrophysics Data System (ADS)

Two pathways of aqueous alteration of CRs were observed: (1) CI-like, containing FeO-rich phyllosilicates, magnetite, and FeNi-sulfides - e.g. GRO 95577 and (2) CM-like, containing tochilinite, cronstedtite, and smectite - e.g. MIL 07525 and LAP 04516.

Abreu, N. M.

2013-09-01

116

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

National Technical Information Service (NTIS)

A multiphysics computational model has been developed for the conventional Gas Metal Arc Welding (GMAW) joining process and used to analyze butt-welding of MIL A46100, a prototypical high-hardness armor martensitic steel. The model consists of five distin...

B. A. Cheeseman C. Yen J. S. Snipes M. Grujicic S. Ramaswami

2013-01-01

117

40'x44' Metal Pallet With Metal Adapters With PA125 Metal Boxes, MIL- STD-1660 First Article Tests.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted First Article Tests in accordance with MIL-STD-1660, 'Design Criteria for Ammunition Unit Loads' on the 40' x 48' metal pallet with metal adapters with PA...

J. L. Dugan

2006-01-01

118

Mn-salen@MIL101(Al): a heterogeneous, enantioselective catalyst synthesized using a 'bottle around the ship' approach.  

PubMed

An enantioselective catalyst, consisting of a chiral Mn(III)salen complex entrapped in the MIL-101 metal organic framework, is reported. For the first time, we assemble a robust MOF-cage around a chiral complex. The heterogeneous catalyst shows the same selectivity as the homogeneous complex and is fully recyclable. Theoretical calculations provide insight into this retention of selectivity. PMID:23903063

Bogaerts, Thomas; Van Yperen-De Deyne, Andy; Liu, Ying-Ya; Lynen, Frederic; Van Speybroeck, Veronique; Van Der Voort, Pascal

2013-09-21

119

Co-adsorption and separation of CO2-CH4 mixtures in the highly flexible MIL-53(Cr) MOF.  

PubMed

The present study attempts to understand the use of the flexible porous chromium terephthalate Cr(OH)(O(2)C-C(6)H(4)-CO(2)) denoted MIL-53(Cr) (MIL = Material from Institut Lavoisier) for the separation of mixtures of CO(2) and CH(4) at ambient temperature. The coadsorption of CO(2) and CH(4) was studied by a variety of different techniques. In situ synchrotron X-ray Powder Diffraction allowed study of the breathing of the solid upon adsorption of the gas mixtures and simultaneously measured Raman spectra yielded an estimation of the adsorbed quantities of CO(2) and CH(4), as well as a quantification of the fraction of the narrow pore (NP) and the large pore (LP) form of MIL-53. Quantitative coadsorption data were then measured by gravimetry and by breakthrough curves. In addition, computer simulation was performed to calculate the composition of the adsorbed phase in comparison with experimental equilibrium isotherms and breakthrough results. The body of results shows that the coadsorption of CO(2) and CH(4) leads to a similar breathing of MIL-53(Cr) as with pure CO(2). The breathing is mainly controlled by the partial pressure of CO(2), but increasing the CH(4) content progressively decreases the transformation of LP to NP. CH(4) seems to be excluded from the NP form, which is filled exclusively by CO(2) molecules. The consequences in terms of CO(2)/CH(4) selectivity and the possible use of MIL-53(Cr) in a PSA process are discussed. PMID:19904944

Hamon, Lomig; Llewellyn, Philip L; Devic, Thomas; Ghoufi, Aziz; Clet, Guillaume; Guillerm, Vincent; Pirngruber, Gerhard D; Maurin, Guillaume; Serre, Christian; Driver, Gordon; van Beek, Wouter; Jolimaître, Elsa; Vimont, Alexandre; Daturi, Marco; Férey, Gérard

2009-12-01

120

Metal-organic framework MIL-101 as a low background signal platform for label-free DNA detection.  

PubMed

A label-free and sensitive fluorescence method for recognition of sequence-specific DNA using DNA-intercalating dye and metal-organic frameworks (MOFs) is developed. Here, MIL-101 (Cr3F(H2O)2O[(O2C)-C6H4-(CO2)]3·nH2O) is introduced as a quenching platform to decrease the high background fluorescence of SYBR Green I (SG)/probe DNA complex. Mechanism investigations show that MIL-101 can strongly adsorb the SG/probe DNA complex through ?-? stacking and electrostatic interactions, and as a consequence, the fluorescence of the SG dye is greatly quenched. While in the presence of target DNA, the as-formed rigid double-stranded (ds) structure of DNA will be far away from the surface of MIL-101; meanwhile, the SG dye can be bound with the dsDNA in the mode of intercalation and minor groove binding, resulting in enhancement of the SG dye fluorescence. The increased signal-to-background ratio has a linear relationship with the concentration of target DNA in the range of 0.1-14 nM. It is confirmed that the detection limit is 73 pM (3?), which is much lower than that based on the carbon nanotubes and graphene oxide platform. Moreover, one-base-mismatched target DNA can be discriminated effectively. With the introduction of MIL-101, the signal-to-background ratio has been improved ?8-fold, demonstrating that MIL-101 is an efficient low-background signal platform. PMID:24362708

Fang, Jing Mei; Leng, Fei; Zhao, Xi Juan; Hu, Xiao Li; Li, Yuan Fang

2014-02-21

121

Acute inhalation toxicity of diesel fuels, MIL-F-46162Referee Grade I(Arctic) and MIL-F-46162 Referee Grade II(regular), used in Vehicle Engine Exhaust Smoke Systems (VEESS). Technical report, February-May 1980  

Microsoft Academic Search

Toxic studies were conducted with rats and guinea pigs to determine acute effects from single exposures to M60A1 tank-generated MIL-F-46162-Referee (Arctic) and (Regular) Grade diesel-fuel smoke and\\/or exhaust clouds under static airflow conditions. Emissions were disseminated with the Vehicle Engine Exhaust Smoke System (VEESS) and exposure periods ranged from 15-180 min in the case of the smoke\\/exhaust emissions and 60-180

J. F. Callahan; C. L. Crouse; G. E. Affleck; R. L. Farrand; R. W. Dorsey

1983-01-01

122

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

NASA Astrophysics Data System (ADS)

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 (CD3OH), 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.

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

2013-12-01

123

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

SciTech Connect

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.

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

124

A success story of formal description techniques: Estelle specification and test generation for MIL-STD 188-220  

Microsoft Academic Search

This paper presents a success story of specifying a complex real-life protocol (MIL-STD 188-220) in Estelle and generating test sequences from the formal specification. 188-220 is being developed in the US Army, Navy and Marine Corps systems for mobile combat network radios. A key factor in this success story has been the collaboration among the researchers of the Uni- versity

Mariusz A. Fecko; M. Ümit Uyar; Paul D. Amer; Adarshpal S. Sethi; Theodore Dzik; R. Menell; Michael Mcmahon

2000-01-01

125

A success story of formal description techniques: Estelle specification and test generation for MIL-STD 188-220q  

Microsoft Academic Search

This paper presents a success story of specifying a complex real-life protocol (MIL-STD 188-220) in Estelle and generating test sequences from the formal specification. 188-220 is being developed in the US Army, Navy and Marine Corps systems for mobile combat network radios. A key factor in this success story has been the collaboration among the researchers of the University of

M. A. Fecko; P. D. Amer; A. S. Sethi; T. Dzik; R. Menell; M. McMahon

126

The coordinatively saturated vanadium MIL47 as a low leaching heterogeneous catalyst in the oxidation of cyclohexene  

Microsoft Academic Search

A Metal Organic Framework, containing coordinatively saturated V+IV sites linked together by terephthalic linkers (V-MIL-47), is evaluated as a catalyst in the epoxidation of cyclohexene. Different solvents and conditions are tested and compared. If the oxidant TBHP is dissolved in water, a significant leaching of V-species into the solution is observed, and also radical pathways are prominently operative leading to

Karen Leus; Matthias Vandichel; Ying-Ya Liu; Ilke Muylaert; Jan Musschoot; Steven Pyl; Henk Vrielinck; Freddy Callens; Guy B. Marin; Christophe Detavernier; Paul V. Wiper; Yaroslav Z. Khimyak; Michel Waroquier; Veronique Van Speybroeck; Pascal Van Der Voort

127

Giant pores in a chromium 2,6-naphthalenedicarboxylate open-framework structure with MIL-101 topology.  

PubMed

Large, larger, ... Replacement of 1,4-benzenedicarboxylate by 2,6-naphthalenedicarboxylate in the MIL-101 structure leads to an isoreticular mesoporous framework containing cages with diameters of 39 and 46 A. High-throughput methods are employed to determine appropriate reaction conditions. The microcrystalline compound is characterized by molecular simulation techniques, powder X-ray diffraction, N(2)-sorption, and TEM investigations. PMID:19191364

Sonnauer, Andreas; Hoffmann, Frank; Fröba, Michael; Kienle, Lorenz; Duppel, Viola; Thommes, Matthias; Serre, Christian; Férey, Gérard; Stock, Norbert

2009-01-01

128

Evaluation of the Biofidelity of the HIII and MIL-Lx Lower Leg Surrogates Under Axial Impact Loading  

Microsoft Academic Search

Objective: Lower leg injury risk is commonly assessed using an Anthropomorphic Test Device (ATD). The current standard leg (the HIII) has been shown to have low biofidelity due to its geometry and material properties. A new surrogate (the MIL-Lx) was developed to address these issues, specifically for anti-vehicular mine blast scenarios but with potential applications to high-force crashes in the

Cheryl E. Quenneville; Cynthia E. Dunning

2011-01-01

129

Evaluation of the Biofidelity of the HIII and MIL-Lx Lower Leg Surrogates Under Axial Impact Loading  

Microsoft Academic Search

Objective: Lower leg injury risk is commonly assessed using an anthropomorphic test device (ATD). The current standard leg (the HIII) has been shown to have low biofidelity due to its geometry and material properties. A new surrogate (the MIL-Lx) was developed to address these issues, specifically for anti-vehicular mine blast scenarios but with potential applications to high-force crashes in the

Cheryl E. Quenneville; Cynthia E. Dunning

2012-01-01

130

Constraints on the Thermal History of Martian Meteorites ALH84001 and MIL03346 by Single Crystal XRD, Electron Microprobe and Mössbauer Analyses of Ortho- and Clinopyroxene  

NASA Astrophysics Data System (ADS)

Constraints on the thermal history of meteorites can be established by estimating the Fe2+-Mg order degree in their pyroxene using single-crystal XRD. We present here the data obtained on martian meteorites ALH84001 and MIL03346.

Domeneghetti, M. C.; Fioretti, A. M.; Cámara, F.; Carraro, A.; McCammon, C.; Tazzoli, V.

2007-07-01

131

Meeting the NSA Requirement for CISPR 16-1-4 in a MIL-STD-461E Type Semi Anechoic Room  

Microsoft Academic Search

The radiated emissions measurements require different types of anechoic chambers for civil and military EMC standards. An anechoic chamber constructed according to the requirements of MIL-STD-46IE may not meet the requirements in CISPR 16-1-4. Instead of constructing a new semi anechoic room (SAR), an investigation on the possible use of a SAR originally constructed for MIL-STD-461E tests to perform the

F. Ustuner; C. Cosar; E. Demirel; A. Dagdeviren

2007-01-01

132

Alteration Assemblages in Martian Meteorite MIL 03346: Terrestrial, Pre-terrestrial, and Inferences for Martian Surface Fluids  

NASA Astrophysics Data System (ADS)

MIL 03346 was discovered in the Miller Range region of Antarctica in 2003, and subsequently classified as a member of the nakhlite group of Martian meteorites based on geochemical and petrological evidence. In common with other nakhlites, MIL 03346 contains aqueous-alteration assemblages. Using SEM-based X-ray imaging techniques, along with LA-ICP-MS trace element data, we compared the extent and composition of alteration between four thin sections from different regions of MIL 03346. The aim of our study is twofold: 1) to determine how pervasive the effects of terrestrial weathering are within the meteorite, and 2) to constrain the fluid composition(s) responsible for the pre-terrestrial alteration assemblages based upon our major and trace element datasets for these phases, in conjunction with previously published data. Our initial results indicate that MIL 03346 thin sections 173 and 174 contain higher modal abundances of alteration material compared to thin sections 126 and 128, with 128 containing the least alteration. Thin sections 173 and 174 have an “Antarctic varnish” layer on multiple edges, indicating they were cut from the outer regions of the stone. Varnish covers only one edge of thin section 126 and is not found on section 128, suggesting the latter was cut from an entirely internal part of the meteorite. It therefore appears that areas close to the surface of MIL 03346 were significantly affected by terrestrial weathering compared to the interior regions. A number of olivine grains contain incipient alteration, with Mg, Ca, Fe and Mn depletion, and Al, Si, P, S and K enrichment. This alteration is most intense in olivine grains towards the edge of thin sections 173 and 174, and is not present in thin section 128, indicating it may be purely of terrestrial origin. Alteration assemblages within olivine and pyroxene cracks mostly consist of Fe- and Si-rich clay materials, commonly containing 2.5-3.5 wt % MgO and < 1 wt % Al2O3, K2O, Na2O, SO3 and Cl. Cross-cutting relationships with fusion crust have been used to suggest a pre-terrestrial origin for the nakhlite clay material. The fact that these materials are limited to cracks within olivine and pyroxene grains suggests pre-terrestrial alteration was localised and in-situ. This interpretation is further supported by the presence of gypsum only in association with clinopyroxene cracks, as Ca cannot be extracted from olivine. Our dataset, along with those of previous studies, therefore indicates the Martian fluid which flowed through MIL 03346 had a composition largely controlled by basaltic weathering. Fluid heterogeneity was caused by a strong dependency upon the surrounding microenvironment. In-situ data from the Mars Exploration Rovers, mineral identifications from orbit, and element measurements by the Mars Odyssey Gamma-Ray Spectrometer are consistent with Martian aqueous alteration involving solutions containing SO3 and Cl.

Hallis, L.; Stopar, J.; Taylor, J.; Velbel, M. A.; Vicenzi, E. P.

2010-12-01

133

Expression of T subsets and mIL2R in peripheral blood of newborns with hypoxic ischemic encephalopathy  

Microsoft Academic Search

Background  Infantile and undifferentiated immune cells in the pathogenesis of neonates with HIE have been studied in recent years. This\\u000a study was undertaken to observe the expression level of T subsets and membrane interleukin-2 receptor (mIL-2R) in the peripheral\\u000a blood of newborns with hypoxic ischemic encephalopathy (HIE) and its clinical manifestations.\\u000a \\u000a \\u000a \\u000a Methods  The peripheral blood mononuclear cells (PBMCs) of newborns with HIE

Jian Wang; Qin Lu

2008-01-01

134

The adsorbate structure of ferrocene inside [Al(OH)(bdc)]x (MIL-53): a powder X-ray diffraction study.  

PubMed

Ferrocene is strongly adsorbed by the highly porous metal-organic framework compound [Al(OH)(bdc)l], (MIL-53; bdc = 1,4-benzenedicarboxylate). The structure of the crystalline phase {[Fe(eta5-C5H5)2][Al(OH)(bdc)]2}x, was determined by X-ray powder diffraction and Rietveld methods. The ferrocene molecules are arranged in a 1D chain-like fashion and their cyclopentadienyl rings are oriented almost parallel to the O3Al faces of the {AlO6}) octahedra without pi-stacking to the bdc. PMID:19378551

Meilikhov, Mikhail; Yusenko, Kirill; Fischer, Roland A

2009-01-28

135

Sm-Nd and Rb-Sr Ages for MIL 05035: Implications for Surface and Mantle Sources  

NASA Technical Reports Server (NTRS)

The Sm-Nd and Rb-Sr ages and also the initial Nd and Sr isotopic compositions of MIL 05035 are the same as those of A-881757. Comparing the radiometric ages of these meteorites to lunar surface ages as modeled from crater size-frequency distributions as well as the TiO2 abundances and initial Sr-isotopic compositions of other basalts places their likely place of origin as within the Australe or Humboldtianum basins. If so, a fundamental west-east lunar asymmetry in compositional and isotopic parameters that likely is due to the PKT is implied.

Nyquist, L. E.; Shih, C-Y.; Reese, Y. D.

2007-01-01

136

Minimally invasive lymphatic supermicrosurgery (MILS): indocyanine green lymphography-guided simultaneous multisite lymphaticovenular anastomoses via millimeter skin incisions.  

PubMed

Among various surgical treatments, lymphaticovenular anastomosis (LVA), which bypasses congested lymph into venous circulation, is the least invasive surgical treatment. However, it usually entails skin incisions of around 3 cm, and operation time of around 4 hours. With multiple supermicrosurgeons under guidance of indocyanine green lymphography, LVAs can be simultaneously performed under local anesthesia within approximately 2 hours via small skin incisions with length less than 1 cm, allowing minimally invasive lymphatic supermicrosurgery (MILS). We performed MILS on 11 limbs of compression-refractory peripheral lymphedema cases. Length of skin incision for LVA ranged from 1 to 9 mm. Average operation time was 1.82 hours. Of the 11 limbs, 10 showed postoperative volume reduction. Indocyanine green lymphography clearly visualizes superficial lymph flows, which helps us to decide precise skin incision sites and find lymphatic vessels in LVA surgery, shortening skin incision length and operation time. Minimally invasive lymphatic supermicrosurgery can serve as the most reasonable treatment of compression-refractory peripheral lymphedema. PMID:23241778

Yamamoto, Takumi; Narushima, Mitsunaga; Yoshimatsu, Hidehiko; Seki, Yukio; Yamamoto, Nana; Oka, Aiko; Hara, Hisako; Koshima, Isao

2014-01-01

137

Synthesis of nanoscale titania embedded in MIL-101 for the adsorption and degradation of volatile pollutants with thermal desorption gas chromatography and mass spectrometry detection.  

PubMed

Nanoscale anatase titania was embedded within the porous chromium terephthalate MIL-101 under low-temperature hydrothermal treatment. The metal-organic framework shell acting as host matrix can effectively prevent the titania nanoparticles from aggregating and enable a good dispersion of these nanoparticles. The X-ray diffraction spectra, transmission electron micrography and X-ray photoelectron spectra clearly showed successful impregnation of the nano-sized anatase titania within the body of MIL-101. The resulting TiO2/MIL-101 nanocomposite was considered as bifunctional material with abundant adsorptive domains and catalytic domains, and was packed in a quartz tube as a convenient trapping and photocatalytic reactor for hazardous volatile pollutants. The composite showed great potential for adsorptive and photocatalytic degradation of these volatile pollutants, such as formaldehyde and o-xylene, which were online monitored by thermal desorption gas chromatography with mass spectrometric detection. PMID:24659452

Hu, Yuling; Huang, Zelin; Zhou, Langjun; Wang, Dongmei; Li, Gongke

2014-06-01

138

Isomorphous substitution in a flexible metal-organic framework: mixed-metal, mixed-valent MIL-53 type materials.  

PubMed

Mixed-metal iron-vanadium analogues of the 1,4-benzenedicarboxylate (BDC) metal-organic framework MIL-53 have been synthesized solvothermally in N,N'-dimethylformamide (DMF) from metal chlorides using initial Fe:V ratios of 2:1 and 1:1. At 200 °C and short reaction time (1 h), materials (Fe,V)(II/III)BDC(DMF(1-x)F(x)) crystallize directly, whereas the use of longer reaction times (3 days) at 170 °C yields phases of composition [(Fe,V)(III)0.5(Fe,V)0.5(II)(BDC)(OH,F)](0.5-)·0.5DMA(+) (DMA = dimethylammonium). The identity of the materials is confirmed using high-resolution powder X-ray diffraction, with refined unit cell parameters compared to known pure iron analogues of the same phases. The oxidation states of iron and vanadium in all samples are verified using X-ray absorption near edge structure (XANES) spectroscopy at the metal K-edges. This shows that in the two sets of materials each of the vanadium and the iron centers are present in both +2 and +3 oxidation states. The local environment and oxidation state of iron is confirmed by (57)Fe Mössbauer spectrometry. Infrared and Raman spectroscopies as a function of temperature allowed the conditions for removal of extra-framework species to be identified, and the evolution of ?2-hydroxyls to be monitored. Thus calcination of the mixed-valent, mixed-metal phases [(Fe,V)(III)0.5(Fe,V)0.5(II)(BDC)(OH,F)](0.5-)·0.5DMA(+) yields single-phase MIL-53-type materials, (Fe,V)(III)(BDC)(OH,F). The iron-rich, mixed-metal MIL-53 shows structural flexibility that is distinct from either the pure Fe material or the pure V material, with a thermally induced pore opening upon heating that is reversible upon cooling. In contrast, the material with a Fe:V content of 1:1 shows an irreversible expansion upon heating, akin to the pure vanadium analogue, suggesting the presence of some domains of vanadium-rich regions that can be permanently oxidized to V(IV). PMID:23815225

Breeze, Matthew I; Clet, Guillaume; Campo, Betiana C; Vimont, Alexandre; Daturi, Marco; Grenèche, Jean-Marc; Dent, Andrew J; Millange, Franck; Walton, Richard I

2013-07-15

139

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

SciTech Connect

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)

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

1980-11-01

140

MIL-53 frameworks in mixed-matrix membranes and cross-linked ZIF-8/matrimidRTM mixed-matrix membranes for gas separation  

NASA Astrophysics Data System (ADS)

Mixed matrix membranes (MMMs) are hybrid materials consisting of two phases: an inorganic nanoscale particle as the discrete phase, and a polymeric material as the continuous phase. The incorporation of inorganic particles into a polymer can improve a membrane's overall separation performance. MMMs incorporating metal-organic frameworks (MOFs) have exhibited promising gas separation performance. MOFs are inorganic-organic crystals constructed from metal ions that are linked by polydentate ligands. Zeolitic imidazolate frameworks (ZIFs) are a sub-class of MOFs that uses imidazole analogues as ligands. In these studies, the MOF MIL-53 and ZIF-8 were successfully synthesized and characterized by a battery of analytical techniques including XRD, FTIR, TGA, N2 adsorption, and SEM, and were incorporated into MMMs with Matrimid® polymer. In chapter 1, MIL-53/Matrimid® MMMs containing MIL-53-ht (open-pore form) were fabricated, characterized and obtained permeability values higher than Matrimid®. Selectivities decreased for the gas pairs of O2/N2, H2/O2, H2/CO2, and H2/N2. However, slight enhancement of the CO2/CH4 selectivity was observed for the MIL-53-ht/Matrimid® compared to that of Matrimid ®. The MIL-53-as/Matrimid® MMM also showed an increase in permeability as well as an increase in selectivity for the gas pairs H2/O2, CO2/CH4, H 2/CH4, and H2/N2. The MIL-53-lt/Matrimid ® MMM showed that it does not retain its closed-pore form in the MMM due to chloroform solvent opening the pores and eventually polymer confinement of the MIL 53 framework in the MMM. In chapter 2, easy synthesis and fabrication of the MIL-53 MOF membrane was realized using a seeded growth method with a commercially available alumina TLC plate. The MOF membrane had a well-intergrown and dense layer of MIL-53 crystals on the surface of the alumina substrate. The MIL-53 crystals were also converted to the MIL-53-lt (closed-pore form) after heating at 330 °C and cooling to room temperature, which confirms the breathing ability of the MOF. In chapter 3, a comprehensive approach for membrane materials in order to achieve high productivity and separation efficiency was applied by incorporating additives into polymers and cross-linking the resulting MMM that could lead to increase and simultaneous selectivity enhancement. ZIF-8 was used as an additive in these MMMs. ZIF-8 can readily absorb small gases such, as H 2 and CO2 due to its 3.4 Å pore aperture. ZIF-8/Matrimid ® MMMs were fabricated with a spin-coated Matrimid® layer on one surface and cross-linked with EDA vapor. This membrane morphology could lead to enhanced selectivities due to the cross-linked layer, at the same time maintain the high permeability of the bulk MMM. The permeabilities decreased for the cross-linked, spin-coated Matrimid® ZIF-8/Matrimid ® MMMs. However, there was enhancement in selectivities for H 2/CO2, H2/N2, H2/O 2 and H2/CH4 gas pairs, which can be due to reduction of diffusive pathways for larger gas molecules. Compared to uncross-linked ZIF-8/Matrimid® MMMs, the cross-linked, spin-coated Matrimid ® ZIF-8/Matrimid® MMMs lie close to the Robeson's upper bound for H2/CO2 suggesting its potential for this gas pair separation.

Hsieh, Josephine Ordonez

141

Engine-Fuel-Lubricant Compatibility Tests on MIL-L-2104C Oils Using Engine Model 6V53T and NATO F-54 Diesel Fuel.  

National Technical Information Service (NTIS)

The final three tests in a series of 13 engine-fuel-lubricant compatibility tests were completed using the Army's high-output two-cycle diesel engine model 6V53T. In the earlier tests in this series, two MIL-L-2104C lubricants (low and mid-ash level) prod...

S. J. Lestz J. N. Bowden

1975-01-01

142

Adsorptive denitrogenation of model fuels with porous metal-organic framework (MOF) MIL-101 impregnated with phosphotungstic acid: effect of acid site inclusion.  

PubMed

A metal-organic framework (MOF) MIL-101 was impregnated with phosphotungstic acid (PWA) and used as an adsorbent in liquid phase adsorption of nitrogen-containing compounds (NCCs) from a model fuel. The model fuel contained one sulfur-containing compound (SCC), benzothiophene (BT); one basic NCC, quinoline (QUI); and one neutral NCC, indole (IND). In both MIL-101 and PWA-impregnated MIL-101s, NCC adsorption selectivity was very high compared to the SCC selectivity. Additionally, the adsorption capacity of basic QUI increased by 20% with only 1% PWA impregnation in MIL-101. The adsorption of a neutral compound, IND, was slightly reduced with PWA impregnation in the MOF. The adsorption capacity/selectivity can be remarkably improved by a slight modification of MOFs, for example, to impart acidity. The MOF impregnated with PWA may be very interesting in commercial denitrogenation, especially for coal-derived fuels which contain mainly basic NCCs, by adsorption since the selectivity for NCCs (compared to SCCs) over the adsorbent is very high and the adsorbent can be reused many times. PMID:23434477

Ahmed, Imteaz; Khan, Nazmul Abedin; Hasan, Zubair; Jhung, Sung Hwa

2013-04-15

143

Development of Shade Standard and Shade Tolerances in Blue 1549 Wool/Polyester Cloth, Stock Dyed Conforming to Type 111 of Specification MIL-C-21115B.  

National Technical Information Service (NTIS)

The purpose of this project was to develop shade standards and eight tolerances of Air Force Blue 1549 in polyester/wool fabric, conforming to Type III of Specification MIL-C-21115B, by blending dyed primaries in top form to match the shade standard by th...

C. Anderson

1968-01-01

144

40 in. x 48 in. Collapsible Quick-Crate Container, MIL-STD-1660 Tests, Design Criteria for Ammunition Unit Loads.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted MIL-STD-1660 Tests, 'Design Criteria for Ammunition Unit Loads' on the 40' x 48' Quick Crate Container manufactured by League Manufacturing, from Greenvil...

J. L. Dugan

2006-01-01

145

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

National Technical Information Service (NTIS)

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 stir tool. Process parameter variation experiments, which inclu...

R. Miller

2012-01-01

146

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

PubMed

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. PMID:24644131

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

2014-04-14

147

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

NASA Astrophysics Data System (ADS)

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, and may represent a mixture of a shallow fluid with one derived from fluid circulation within the nakhlite cumulate pile - with heat for fluid circulation supplied by either the igneous intrusion or by an impact event.

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

2013-03-01

148

Synthesis and characterisation of MIL-43 and MIL-44, two new layered templated tetravalent phosphates: Zr(PO 4) 2·N 2C 2H 10 and Ti 2(PO 4) 2(HPO 4) 2·N 2C 2H 10  

NASA Astrophysics Data System (ADS)

Zr(PO 4) 2·N 2C 2H 10 or MIL-43 and Ti 2(PO 4) 2(HPO 4) 2·N 2C 2H 10 or MIL-44 were prepared hydrothermally (20 or 4 days, 473 or 453 K, respectively, autogenous pressure) in the presence of ethylenediamine. Their structures have been determined by single-crystal X-ray diffraction. MIL-43 crystallises in the monoclinic space group P2 1 (No. 4) with a=11.0722(1), b=10.6631(1), c=16.4642(2) Å, ?=95.991(1)° and V=1933.21(3) Å 3 (final agreement factors R1( F)=0.0466, wR2( F2)=0.1096). Due to the very poor quality of the crystal, only an approached structure of MIL-44 is given; it crystallises in the triclinic space group P1 (No. 1) with a=5.0845(4), b=6.3097(5), c=12.6111(9) Å, ?=77.454(1), ?=78.926(2), ?=89.986(1)° and V=387.21(5) Å 3. Both solids are two-dimensional and are the ion-exchanged equivalents of the layered solids ?ZrP and ?TiP. Inorganic sheets of MIL-43 are built up from pseudo-hexagonal arrays of ZrO 6 octahedra surrounded by PO 4 tetrahedra pointing their terminal oxygen alternatively up and down at the interlayer space. Layers of MIL-44 are made of double ?(Ti?O?P)? chains built from TiO 6 octahedra and PO 4 tetrahedra on which HPO 4 groups are grafted pointing towards the interlayer space. In both cases, diprotonated organic templates, located between the layers, interact with terminal phosphate groups and ensure via hydrogen bonds the stability of the structures.

Serre, Christian; Taulelle, Françis; Ferey, Gérard

2001-07-01

149

Acute inhalation toxicity of diesel fuels, MIL-F-46162-Referee Grade I(Arctic) and MIL-F-46162 Referee Grade II(regular), used in Vehicle Engine Exhaust Smoke Systems (VEESS). Technical report, February-May 1980  

SciTech Connect

Toxic studies were conducted with rats and guinea pigs to determine acute effects from single exposures to M60A1 tank-generated MIL-F-46162-Referee (Arctic) and (Regular) Grade diesel-fuel smoke and/or exhaust clouds under static airflow conditions. Emissions were disseminated with the Vehicle Engine Exhaust Smoke System (VEESS) and exposure periods ranged from 15-180 min in the case of the smoke/exhaust emissions and 60-180 min with the exhausts. At attempted airborne concentrations of 10-12 mg (10,000-12,000 mg/cu m) of the Arctic and Regular Grade diesel fuel smoke/exhaust mixtures and 0.07 mg/1 (70 mg/cu m) of the exhausts; toxic signs (excluding death) were seen after 15- and 60-min exposures to the Arctic-grade diesel fuel smoke/exhaust emissions and death was observed at the 180-min exposures. The exhaust emissions from the same fuel caused toxic signs including death after 60- to 180-min exposures. Regular-grade diesel-fuel smoke/exhaust caused toxic signs and death in animals after 60- to 180-min exposures, while the exhaust clouds from the same fuel caused toxic signs at 60 min and toxic signs including death at 180 min. Significant respiratory changes are evidenced by pulmonary function tests were observed after 15-min exposures to the smoke/exhaust emissions from either type of Referee Grade diesel fuel and similar effects were seen after 60-min exposures to the exhausts.

Callahan, J.F.; Crouse, C.L.; Affleck, G.E.; Farrand, R.L.; Dorsey, R.W.

1983-06-01

150

Structure of the N-glycosidase MilB in complex with hydroxymethyl CMP reveals its Arg23 specifically recognizes the substrate and controls its entry.  

PubMed

5-Hydroxymethylcytosine (5hmC) is present in T-even phage and mammalian DNA as well as some nucleoside antibiotics, including mildiomycin and bacimethrin, during whose synthesis 5hmC is produced by the hydrolysis of 5-hydroxymethyl cytidine 5'-monophosphate (hmCMP) by an N-glycosidase MilB. Recently, the MilB-CMP complex structure revealed its substrate specificity for CMP over dCMP. However, hmCMP instead of CMP is the preferred substrate for MilB as supported by that its KM for CMP is ?27-fold higher than that for hmCMP. Here, we determined the crystal structures of MilB and its catalytically inactive E103A mutant in complex with hmCMP. In the structure of the complex, Phe22 and Arg23 are positioned in a cage-like active site resembling the binding pocket for the flipped 5-methylcytosine (5mC) in eukaryotic 5mC-binding proteins. Van der Waals interaction between the benzene ring of Phe22 and the pyrimidine ring of hmCMP stabilizes its binding. Remarkably, upon hmCMP binding, the guanidinium group of Arg23 was bent ?65° toward hmCMP to recognize its 5-hydroxymethyl group, inducing semi-closure of the cage-like pocket. Mutagenesis studies of Arg23 and bioinformatics analysis demonstrate that the positively charged Arg/Lys at this site is critical for the specific recognition of the 5-hydroxymethyl group of hmCMP. PMID:24920828

Zhao, Gong; Wu, Geng; Zhang, Yan; Liu, Guang; Han, Tiesheng; Deng, Zixin; He, Xinyi

2014-08-01

151

High-throughput aided synthesis of the porous metal-organic framework-type aluminum pyromellitate, MIL-121, with extra carboxylic acid functionalization.  

PubMed

A new porous metal-organic framework (MOF)-type aluminum pyromellitate (MIL-121 or Al(OH)[H(2)btec]·(guest), (guest = H(2)O, H(4)btec = pyromellitic acid) has been isolated by using a high-throughput synthesis method under hydrothermal conditions. Its structure was determined from powder X-ray diffraction analysis using synchrotron radiation (Soleil, France) and exhibits a network closely related to that of the MIL-53 series. It is a three-dimensional (3D) framework containing one-dimensional (1D) channels delimited by infinite trans-connected aluminum-centered octahedra AlO(4)(OH)(2) linked through the pyromellitate ligand. Here the organic ligand acts as tetradendate linker via two of the carboxylate groups. The two others remain non-bonded in their protonated form, and this constitutes a rare case of the occurrence of both bonding and non-bonding organic functionalities of the MOF family. The non-coordinated -COOH groups points toward the channels to get them an open form configuration. Within the tunnels are located unreacted pyromellitic acid and water species, which are evacuated upon heating, and a porous MIL-121 phase is obtained with a Brunauer-Emmett-Teller (BET) surface area of 162 m(2) g(-1). MIL-121 has been characterized by IR, thermogravimetry (TG) analyses, and solid state NMR spectroscopy employing a couple of two-dimensional (2D) techniques such as (1)H-(1)H SQ-DQ BABA, (1)H-(1)H SQ-SQ RFDR, (27)Al{(1)H} CPHETCOR and (27)Al MQMAS. PMID:20923169

Volkringer, Christophe; Loiseau, Thierry; Guillou, Nathalie; Férey, Gérard; Haouas, Mohamed; Taulelle, Francis; Elkaim, Erik; Stock, Norbert

2010-11-01

152

Moessbauer and Electron Microprobe Studies of Density Separates of Martian Nakhlite Mil03346: Implications for Interpretation of Moessbauer Spectra Acquired by the Mars Exploration Rovers  

NASA Technical Reports Server (NTRS)

Martian meteorite MIL03346 is described as an augite-rich cumulate rock with approx.80%, approx.3%, and approx.21% modal phase proportions of augite (CPX), olivine and glassy mesostasis, respectively, and is classified as a nakhlite [1]. The Mossbauer spectrum for whole rock (WR) MIL 03346 is unusual for Martian meteorites in that it has a distinct magnetite subspectrum (7% subspectral area) [2]. The meteorite also has products of pre-terrestrial aqueous alteration ("iddingsite") that is associated primarily with the basaltic glass and olivine. The Mossbauer spectrometers on the Mars Exploration Rovers have measured the Fe oxidation state and the Fe mineralogical composition of rocks and soils on the planet s surface since their landing in Gusev Crater and Meridiani Planum in January, 2004 [3,4]. The MIL 03346 meteorite provides an opportunity to "ground truth" or refine Fe phase identifications. This is particularly the case for the so-called "nanophase ferric oxide" (npOx) component. NpOx is a generic name for a ferric rich product of oxidative alteration. On Earth, where we can take samples apart and study individual phases, examples of npOx include ferrihydrite, schwertmannite, akagaaneite, and superparamagnetic (small particle) goethite and hematite. It is also possible for ferric iron to be associated to some unknown extent with igneous phases like pyroxene. We report here an electron microprobe (EMPA) and Moessbauer (MB) study of density separates of MIL 03346. The same separates were used for isotopic studies by [5]. Experimental techniques are described by [6,7].

Morris, R. V.; McKay, G. A.; Agresti, D. G.; Li, Loan

2008-01-01

153

Uptake of liquid alcohols by the flexible Fe(III) metal-organic framework MIL-53 observed by time-resolved in situ X-ray diffraction.  

PubMed

A comprehensive, time-resolved, energy-dispersive X-ray diffraction study of the uptake of liquid alcohols (methanol, ethanol, propan-1-ol and propan-2-ol) by the flexible metal-organic framework solid MIL-53(Fe)[H(2)O] is reported. In the case of the primary alcohols, a fluorinated version of the MIL-53(Fe) host (C2/c symmetry V ca. 1000 Å(3)), in which a fraction of framework hydroxides are replaced by fluoride, shows uptake of alcohols to give initially a partially expanded phase (C2/c symmetry, V ca. 1200 Å(3)) followed by an expanded form of the material (either Imcm or Pnam symmetry, V ca. 1600 Å(3)). In the case of methanol-water mixtures, the EDXRD data show that the partially open intermediate phase undergoes volume expansion during its existence, before switching to a fully open structure if concentrated methanol is used; analogous behaviour is seen if the initial guest is propan-2-ol, which then is replaced by pyridine, where a continuous shift of Bragg peaks within C2/c symmetry is observed. In contrast to the partially fluorinated materials, the purely hydroxylated host materials show little tendency to stabilise partially open forms of MIL-53(Fe) with primary alcohols and the kinetics of guest introduction are markedly slower without the framework fluorination: this is exemplified by the exchange of water by propan-2-ol, where a partially open C2/c phase is formed in a step-wise manner. Our study defines the various possible pathways of liquid-phase uptake of molecular guests by flexible solid MIL-53(Fe). PMID:21557349

Walton, Richard I; Munn, Alexis S; Guillou, Nathalie; Millange, Franck

2011-06-14

154

Adsorption of N/S heterocycles in the flexible metal-organic framework MIL-53(Fe(III)) studied by in situ energy dispersive X-ray diffraction.  

PubMed

The adsorption of N/S-containing heterocyclic organic molecules in the flexible iron(III) terephthalate MIL-53, Fe(III)(OH)(0.6)F(0.4)(O2C-C6H4-CO2)·(H2O), from the liquid phase was studied with in situ energy dispersive X-ray diffraction (EDXRD), in order to follow the adsorption-induced expansion of the structure. For comparison with the diffraction data, liquid phase adsorption isotherms were recorded for uptake of benzothiophene, benzothiazole and indole in isopropanol and in heptane. The solvent not only influences pore opening but is also a competing guest. The in situ EDXRD experiments allow the kinetics of guest uptake and the competition with solvent to be monitored directly. Indole uptake is limited; this adsorbate is barely capable of opening the closed, either hydrated or dehydrated, MIL-53(Fe) structure, or of penetrating the isopropanol-containing material in the concentration range under study. When isopropanol is used as a solvent, the guest molecules benzothiophene and benzothiazole must be present at a certain threshold concentration before substantial adsorption into the metal-organic framework takes place, eventually resulting in full opening of the structure. The fully expanded structures of benzothiophene or benzothiazole loaded MIL-53(Fe) materials have Imcm symmetry and a unit cell volume of ca. 1600 Å(3), and upon uptake of the guest molecules by the closed form (unit cell volume ~1000 Å(3)) no intermediate crystalline phases are seen. Successful uptake by MIL-53(Fe) requires that the adsorbate is primarily a good hydrogen bond acceptor; additionally, based on UV-visible spectroscopy, a charge-transfer interaction between the S atoms of benzothiophene and the aromatic rings in the MOF pore wall is proposed. PMID:23439974

Van de Voorde, Ben; Munn, Alexis S; Guillou, Nathalie; Millange, Franck; De Vos, Dirk E; Walton, Richard I

2013-06-14

155

Structure of the N-glycosidase MilB in complex with hydroxymethyl CMP reveals its Arg23 specifically recognizes the substrate and controls its entry  

PubMed Central

5-Hydroxymethylcytosine (5hmC) is present in T-even phage and mammalian DNA as well as some nucleoside antibiotics, including mildiomycin and bacimethrin, during whose synthesis 5hmC is produced by the hydrolysis of 5-hydroxymethyl cytidine 5?-monophosphate (hmCMP) by an N-glycosidase MilB. Recently, the MilB–CMP complex structure revealed its substrate specificity for CMP over dCMP. However, hmCMP instead of CMP is the preferred substrate for MilB as supported by that its KM for CMP is ?27-fold higher than that for hmCMP. Here, we determined the crystal structures of MilB and its catalytically inactive E103A mutant in complex with hmCMP. In the structure of the complex, Phe22 and Arg23 are positioned in a cage-like active site resembling the binding pocket for the flipped 5-methylcytosine (5mC) in eukaryotic 5mC-binding proteins. Van der Waals interaction between the benzene ring of Phe22 and the pyrimidine ring of hmCMP stabilizes its binding. Remarkably, upon hmCMP binding, the guanidinium group of Arg23 was bent ?65° toward hmCMP to recognize its 5-hydroxymethyl group, inducing semi-closure of the cage-like pocket. Mutagenesis studies of Arg23 and bioinformatics analysis demonstrate that the positively charged Arg/Lys at this site is critical for the specific recognition of the 5-hydroxymethyl group of hmCMP.

Zhao, Gong; Wu, Geng; Zhang, Yan; Liu, Guang; Han, Tiesheng; Deng, Zixin; He, Xinyi

2014-01-01

156

MIL2TCAF  

... MISR Level 2 First Look TOA/Cloud Albedo Data Stage 1 (Albedos) & 3 (Bidirectional reflectance factor (BRF) ... Parameters:  Local albedo values and statistics Restrictive albedo values and statistics Expansive albedo ...

2013-12-18

157

MIL1A  

... MISR Level 1A camera charge-coupled device (CCD) Science Data: Reformatted Annotated Level 1A product of the CCD science data. ... :  Data Product Specification Versioning History:  Ellipsoid, Terrain, Browse, CCD, Radiance SCAR-B ...

2013-12-18

158

MIL3MAL  

... Tools:  Search and Order:  MISR Order Tool FTP Access: Data Pool OPeNDAP Access: OPeNDAP Search ... Reverb   Reverb Tutorial Data Visualization:  Giovanni Order Data:  MISR Order Tool:  Order Data ...

2013-12-18

159

MIL3MALN  

... Tools:  Search and Order:  MISR Order Tool FTP Access: Data Pool OPeNDAP Access: OPeNDAP Search ... Reverb   Reverb Tutorial Data Visualization:  Giovanni Order Data:  MISR Order Tool:  Order Data ...

2013-12-18

160

MIL3DALN  

... Tools:  Search and Order:  MISR Order Tool FTP Access: Data Pool OPeNDAP Access: OPeNDAP Search ... Reverb   Reverb Tutorial Data Visualization:  Giovanni Order Data:  MISR Order Tool:  Order Data ...

2013-12-18

161

MIL3DAL  

... Tools:  Search and Order:  MISR Order Tool FTP Access: Data Pool OPeNDAP Access: OPeNDAP Search ... Reverb   Reverb Tutorial Data Visualization:  Giovanni Parameters:  Local albedo: 1° x 1° grid ...

2013-12-18

162

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

NASA Astrophysics Data System (ADS)

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 structures on 90 nm silicon technology, bonding wires with different percentage of doping element (palladium), and different levels of bonding process parameters. An empirical model to understand the high temperature effects for bonds formed using the low diameter wire was also developed.

Kudtarkar, Santosh Anil

163

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

NASA Technical Reports Server (NTRS)

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.

Peri, Frank, Jr.

1992-01-01

164

N/S-heterocyclic contaminant removal from fuels by the mesoporous metal-organic framework MIL-100: the role of the metal ion.  

PubMed

The influence of the metal ion in the mesoporous metal trimesate MIL-100(Al(3+), Cr(3+), Fe(3+), V(3+)) on the adsorptive removal of N/S-heterocyclic molecules from fuels has been investigated by combining isotherms for adsorption from a model fuel solution with microcalorimetric and IR spectroscopic characterizations. The results show a clear influence of the different metals (Al, Fe, Cr, V) on the affinity for the heterocyclic compounds, on the integral adsorption enthalpies, and on the uptake capacities. Among several factors, the availability of coordinatively unsaturated sites and the presence of basic sites next to the coordinative vacancies are important factors contributing to the observed affinity differences for N-heterocyclic compounds. These trends were deduced from IR spectroscopic observation of adsorbed indole molecules, which can be chemisorbed coordinatively or by formation of hydrogen bonded species. On the basis of our results we are able to propose an optimized adsorbent for the deep and selective removal of nitrogen contaminants out of fuel feeds, namely MIL-100(V). PMID:23646935

Van de Voorde, Ben; Boulhout, Mohammed; Vermoortele, Frederik; Horcajada, Patricia; Cunha, Denise; Lee, Ji Sun; Chang, Jong-San; Gibson, Emma; Daturi, Marco; Lavalley, Jean-Claude; Vimont, Alexandre; Beurroies, Isabelle; De Vos, Dirk E

2013-07-01

165

Investigation of structure and dynamics of the hydrated metal-organic framework MIL-53(Cr) using first-principles molecular dynamics.  

PubMed

The hydration behavior of metal-organic frameworks (MOFs) is of interest both from a practical and from a fundamental point of view: it is linked, on the one hand, to the hydrothermal stability (or instability) of the nanoporous material, which might limit its use in technological applications. On the other hand, it sheds light on the behavior of water in a strongly confined environment. Here, we use first-principles molecular dynamics (MD) to investigate two hydrated phases of the flexible MOF MIL-53(Cr), which adopts a narrow- or a large-pore form, depending on the water loading. Structure and dynamics of the two phases are thoroughly analyzed and compared, with a focus on the hydroxyl group of MIL-53(Cr) and the water molecules in the nanopores. Furthermore, the behavior of the confined water is compared to that of bulk water. Whereas in the narrow-pore form, water is adsorbed at specific crystalline sites, it shows a more disordered, bulk-like structure in the large-pore form. However, reorientation dynamics of water molecules in the latter is considerably slowed down with respect to bulk water, which highlights the confinement effect of the nanoporous framework. PMID:24100540

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

2013-11-21

166

Hydrothermal synthesis and structural characterization of a gallium pyromellitate Ga(OH)(btec)?0.5H 2O, with infinite Ga-( ?-OH)-Ga chains (MIL-61)  

NASA Astrophysics Data System (ADS)

A new gallium carboxylate Ga(OH)(btec)?0.5H 2O (MIL-61) was synthesized under mild hydrothermal conditions (200 °C, 24 hours) in the presence of 1,2,4,5-benzenetetracarboxylic (btec) acid and water. The crystal structure, characterized by means of Rietevelt refinement of powder XRD data, consists of trans chains of GaO 4(OH) 2 octahedra, connected to each other through a ?-OH group. The three-dimensional framework is built up from these chains linked together via the organic molecules so delimiting the cavities where the water molecules are encapsulated. Analysis by solid state NMR ( 1H and 13C) has confirmed the presence within the structure of both water molecules and carboxylate moieties partially deprotonated. The structure of Ga(OH)(btec)?0.5H 2O corresponds to that of MIL-61 obtained with vanadium replacing gallium. Crystal data for Ga 4(OH) 4((HO 2C) 2sbnd C 6H 4sbnd (CO 2) 2) 4?2H 2O: a=14.8325(10) Å, b=6.7792(10) Å, c=10.6726(10) Å, V=1073.2(2) Å, Pnma (n o 62).

Loiseau, Thierry; Muguerra, Hervé; Haouas, Mohamed; Taulelle, Francis; Férey, Gérard

2005-05-01

167

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

NASA Technical Reports Server (NTRS)

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.

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

2012-01-01

168

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)  

PubMed Central

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.

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

2013-01-01

169

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 Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) was tasked by US Army ARDEC (AMSRD-AAR-AIL-P) to conduct MIL-STD-1660 Tests to determine if the composite monopack for the 120MM mortar, with plastic pallet adapter...

J. L. Dugan

2005-01-01

170

45-112' x 35' Metal Pallet with Cartridge, 40MM, Packed 32 Per PA120 Metal Box, Unitized 42 Per Pallet, First Article Tests in Accordance with MIL- STD-1660, 'Design Criteria for Ammunition Unit Loads'.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted First Article Tests in Accordance with MIL- STD-1 660, 'Design Criteria for Ammunition Unit Loads' on the 45-1/2' x 35' metal pallet with cartridge, 40MM,...

J. L. Dugan

2006-01-01

171

· • Estudo baseado na teoria piagetiana sobre a fidelidade em dois contos de As Mil e uma Noites na versão de Galland 1 Study based on Piaget's theory about fidelity in two stories extracted from \\  

Microsoft Academic Search

Resumo: Caracteriza-se por um estudo teórico numa visão piagetiana sobre dois contos da coletânea As Mil e uma Noites na versão de Galland. O objetivo é analisar, nas narrativas, a virtude e a fidelidade, verificando se as relações entre os personagens são mantidas pelo amor, pelo respeito mútuo e relações de eqüidade ou pelo medo e obediência apresentado entre os

Luana Carramillo Going

172

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.  

PubMed

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. PMID:24771587

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

2014-06-01

173

Synthesis and crystal structure of a new MOF-type indium pyromellitate (MIL-117) with infinite chains of unusual cis connection of octahedra InO 4(OH) 2  

NASA Astrophysics Data System (ADS)

A new MOF-type indium pyromellitate (MIL-117) was hydrothermally synthesized at 483 K for 24 h. The structure of MIL-117 with structural formula In 6(OH) 6(btec) 3(H 4btec)·8-14H 2O (btec = 1,2,4,5-benzenetetracarboxylate), orthorhombic ( Pnmm) symmetry and unit cell parameters a = 8.2390(8), b = 22.251(2), c = 37.791(4) Å, V = 6928.2(11) Å 3 was solved from single-crystal diffraction data. The three-dimensional open framework structure consists of infinite chains of unusual cis sharing In-centered octahedra linked to each other through the pyromellitate ligands. The three distinct In(III) cations are coordinated to four oxygen atoms from carboxyl groups and two ? 2-hydroxyl groups in cis positions. The MIL-117 network delimits one-dimensional channels of 7.7 × 8.0 Å running along the a axis, where occluded water molecules are located. Although water species can be easily removed from the pore, no significant N 2 or CO 2 sorption was observed.

Mazaj, Matjaz; Volkringer, Christophe; Loiseau, Thierry; Kau?i?, Ven?eslav; Férey, Gérard

2011-08-01

174

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

SciTech Connect

A new indium trimesate In{sub 12}O(OH){sub 12}({l_brace}OH{r_brace}{sub 4},{l_brace}H{sub 2}O{r_brace}{sub 5})[btc]{sub 6}.{approx}31H{sub 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 {mu} {sub 3}-oxo-bridged indium clusters and infinite chains of InO{sub 4}(OH){sub 2} and InO{sub 2}(OH){sub 3}(H{sub 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 {mu} {sub 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 {approx} 400 A{sup 3} volumes), in which are encapsulated free water molecules. The latter species are removed upon heating at 150 deg. C.

Volkringer, Christophe [Institut Lavoisier (UMR CNRS 8637), Universite de Versailles Saint Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles (France); Loiseau, Thierry [Institut Lavoisier (UMR CNRS 8637), Universite de Versailles Saint Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles (France)]. E-mail: loiseau@chimie.uvsq.fr

2006-05-25

175

Widespread but tissue-specific patterns of interferon-induced transmembrane protein 3 (IFITM3, FRAGILIS, MIL-1) in the mouse gastrula.  

PubMed

Interferon-induced transmembrane protein 3 (IFITM3; FRAGILIS; MIL-1) is part of a larger family of important small interferon-induced transmembrane genes and proteins involved in early development, cell adhesion, and cell proliferation, and which also play a major role in response to bacterial and viral infections and, more recently, in pronounced malignancies. IFITM3, together with tissue-nonspecific alkaline phosphatase (TNAP), PRDM1, and STELLA, has been claimed to be a hallmark of segregated primordial germ cells (PGCs) (Saitou et al., 2002). However, whether IFITM3, like STELLA, is part of a broader stem/progenitor pool that builds the posterior region of the mouse conceptus (Mikedis and Downs, 2012) is obscure. To discover the whereabouts of IFITM3 during mouse gastrulation (~E6.5-9.0), systematic immunohistochemical analysis was carried out at closely spaced 2-4-h intervals. Results revealed diverse, yet consistent, profiles of IFITM3 localization throughout the gastrula. Within the putative PGC trajectory and surrounding posterior tissues, IFITM3 localized as a large cytoplasmic spot with or without staining in the plasma membrane. IFITM3, like STELLA, was also found in the ventral ectodermal ridge (VER), a posterior progenitor pool that builds the tailbud. The large cytoplasmic spot with plasma membrane staining was exclusive to the posterior region; the visceral yolk sac, non-posterior tissues, and epithelial tissues exhibited spots of IFITM3 without cell surface staining. Colocalization of the intracellular IFITM3 spot with the endoplasmic reticulum, Golgi apparatus, or endolysosomes was not observed. That relatively high levels of IFITM3 were found throughout the posterior primitive streak and its derivatives is consistent with evidence that IFITM3, like STELLA, is part of a larger stem/progenitor cell pool at the posterior end of the primitive streak that forms the base of the allantois and builds the fetal-umbilical connection, thus further obfuscating practical phenotypic distinctions between so-called PGCs and surrounding soma. PMID:23639725

Mikedis, Maria M; Downs, Karen M

2013-10-01

176

Tocilizumab inhibits signal transduction mediated by both mIL6R and sIL6R, but not by the receptors of other members of IL6 cytokine family  

Microsoft Academic Search

To characterize the biological activity of tocilizumab, a humanized anti-human interleukin-6 receptor (IL-6R) monoclonal antibody, we examined its binding activity to both soluble IL-6R (sIL-6R) and membrane bound IL-6R (mIL-6R) and its neutralizing activity to other IL-6 family cytokines. ELISA assay demonstrated that tocilizumab bound to sIL-6R and inhibited IL-6 binding to sIL-6R in a dose-dependent manner. The dissociation constant

Masahiko Mihara; Keiko Kasutani; Makoto Okazaki; Akito Nakamura; Shigeto Kawai; Masamichi Sugimoto; Yoshihiro Matsumoto; Yoshiyuki Ohsugi

2005-01-01

177

Comparison of the Combustion Performance of Shell UMF, Grade C, MIL-F-5624C, Grade JP-5, Fuels in a Heavy-Duty XRJ47-W-9 Ram-Jet Engine  

NASA Technical Reports Server (NTRS)

Comparable combustion performance data for Shell UMF, grade C, and MIL-F-5624C, grade JP-5, fuels were obtained using a heavy-duty version of the XRJ47-W-9 ram-jet engine operated in a 2.75 Mach number free-jet facility. Data were obtained for the two fuels over a range of fuel-air ratios, engine airflows, and engine-inlet temperatures. The test conditions were selected to provide combustor-inlet temperatures. The test conditions were selected to provide combustor-inlet conditions approximately representative of those which would be encountered over a range of altitudes and flight Mach numbers. The variation of combustion efficiency with fuel-air ratio for the two fuels is compared at the several inlet conditions. The pilot-burner ignition and operating limits with both fuels are also included. In general, the combustion efficiency with Shell UMF, grade C, fuel was 1 to 4 points lower than with MIL-F-5624C, grade JP-5, fuel.

Ranscht, W. G.; Farley, J. M.

1957-01-01

178

Synthesis and structural characterization of metal-organic frameworks with the mellitate linker M2(OH)2[C12O12H2]·2H2O (M = Al, Ga, In) MIL-116  

NASA Astrophysics Data System (ADS)

A new series of isostructural MOF-type carboxylates called MIL-116 (M2(OH)2[C12O12H2]·2H2O), was synthesized from the combination of mellitic acid and trivalent p cations M = Al3+, Ga3+ or In3+. Their structures were analyzed either by single-crystal microdiffraction using the synchrotron radiation beamline (ID13 station at ESRF, Grenoble) or solved from powder X-ray diffraction. The 3D hybrid framework is built up from the connection of infinite straight chains of metal-centered octahedra sharing trans corners linked to each other through the mellitate ligands. Here the ligand acts as octadentate linker with four of the carboxylic groups involved in the M-O-C bondings. The two other carboxylate arms remain non-bonded under their protonated form. This represents a rare case of the occurrence of both non-bonding and bonding organic functionalities in a MOF-type solid. Within the tunnels are located water species that interact with the non-coordinated -COOH groups pointing towards the channel.

Volkringer, Christophe; Loiseau, Thierry; Guillou, Nathalie; Férey, Gérard; Popov, Dmitry; Burghammer, Manfred; Riekel, Christian

2013-12-01

179

Syntheses and structures of the MOF-type series of metal 1,4,5,8,-naphthalenetetracarboxylates M 2(OH) 2[C 14O 8H 4] (Al, Ga, In) with infinite trans-connected M-OH-M chains (MIL-122)  

NASA Astrophysics Data System (ADS)

Three new isostructural MOF-type compounds (named MIL-122) have been obtained from the hydrothermal reaction at 210 °C for 24 h of the 1,4,5,8-naphthalenetetracarboxylic acid with aluminum, gallium or indium source in water. The structures of the compounds M 2(OH) 2[C 14H 4O 8] (M = Al, Ga, In) have been solved ab initio from powder X-ray diffraction analysis using the synchrotron radiation (Soleil; station CRISTAL). The three-dimensional organic-inorganic framework exhibits infinite straight chains of metal-centered octahedra sharing trans corners linked to each other through the 1,4,5,8-naphthalenetetracarboxylate ligand. The cations Al, Ga or In, are coordinated by four oxygen atoms coming from the carboxyl groups and two bridging hydroxyl groups ?2-OH, located in trans position in the octahedral surrounding. The compounds characterized by thermogravimetric and thermodiffraction analyses are thermally stable up to 440, 460 and 380 °C, for Al, Ga and In, respectively. Crystal data: monoclinic cell; P2 1/ c (n°14); for MIL-122 (Al): a = 9.5174(2), b = 10.0706(1), c = 6.6465(2) Å, ? = 91.2614(5)°, V = 636.878(2) Å 3, Z = 2; for MIL-122 (Ga): a = 9.6501(1), b = 10.0585(1), c = 6.75069(9) Å, ? = 92.4786(9)°, V = 654.65(1) Å 3, Z = 2; for MIL-122 (In): a = 9.92359(5), b = 10.19765(7), c = 7.19357(4) Å, ? = 727.034(8)°, V = 727.034(8)Å 3, Z = 2.

Volkringer, Christophe; Loiseau, Thierry; Guillou, Nathalie; Férey, Gérard; Elkaïm, Erik

2009-08-01

180

Field demonstration of aviation turbine fuel MIL-T-83133C, grade JP-8 (NATO code F-34) at Fort Bliss, TX. Interim report 1 Feb 89-31 Jul 90  

SciTech Connect

A JP-8 fuel demonstration was initiated at Ft. Bliss, TX, to demonstrate the impact of using aviation turbine fuel MIL-T-83133C, grade JP-8 in all military diesel fuel-consuming ground vehicles and equipment. Three major organizations, one ordnance battalion and two activities with a total of 2807 vehicles/equipment (V/E), were identified as participants in the demonstration program, which is authorized to continue through 30 September 1991. No fuel storage tank or V/E fuel cells were drained and flushed prior to introduction of JP-8 fuel. This procedure resulted in a commingling of JP-8 fuel with existing diesel fuel. As of 31 July 1990 approximately 4,700,000 gallons of JP-8 fuel had been dispensed to user units at Ft. Bliss and at Ft. Irwin National Training Center (NTC) in California. Three areas of concern arose from the beginning of the program: (1) plugging of fuel filters, (2) loss of power, and (3) overheating. The use of JP-8 fuel did not cause or exacerbate any V/E fuel filter plugging. Where power loss was apparent, generally it was commensurate with the difference in heating values between JP-8 and diesel fuel. The V/E at Ft. Bliss operated satisfactorily with the JP-8 fuel with no alterations, mechanical or otherwise, having to be made to any engines or fuel systems. There were no major differences in fuel procurement costs, V/E fuel consumption, AOAP-directed oil changes, and fuel-wetted component replacements.

Butler, W.E.; Alvarez, R.A.; Yost, D.M.; Westbrook, S.R.; Buckingham, J.P.

1990-12-01

181

Integrated Spectroscopic Studies of Mil03346.  

National Technical Information Service (NTIS)

Spectroscopic studies of the SNC meteorites continue to be of great interest because they provide the only 'ground truth' available for ongoing Mossbauer, thermal emittance, MidIR, nearIR, and visible spectral analysis of the martian surface. We present h...

M. D. Dyar C. M. Pieters T. Hiroi M. D. Lane

2005-01-01

182

Tajikistan: POL/MIL Informed Questions.  

National Technical Information Service (NTIS)

Tajikistan was one of the few former Soviet republics that endured a violent civil war after the Soviet collapse. Tajikistan's political, economic and social structure was devastated by the war. Deaths were estimated at 50, 000 and refugees estimated at 5...

D. S. Rogers

2003-01-01

183

Cogeneration to cut plant's electricity costs $10 mil. /yr  

SciTech Connect

DOE describes the Hoffman-LaRoche Inc. pharmaceutical plant in Belvidere, NJ as the largest slow-speed diesel cogeneration system in the country. The system produces 23,000 kilowatts of electricity, which is more than the plant requires, and 50% of its steam requirement. DOE projects the annual energy savings at $10 million. Excess power will be sold to Jersey Central Power and Light for another $1 million. Partial funding for the plant came from DOE as a demonstration project. Heat recovery from the generator raises the system's efficiency to 87%, which is double that of a commercial power plant. The system burns No. 6 fuel oil, but could burn natural gas and synthetic fuels with additional modifications. (DCK)

Barber, J.

1983-04-25

184

Cogeneration to cut plant's electricity costs $10 mil. \\/yr  

Microsoft Academic Search

DOE describes the Hoffman-LaRoche Inc. pharmaceutical plant in Belvidere, NJ as the largest slow-speed diesel cogeneration system in the country. The system produces 23,000 kilowatts of electricity, which is more than the plant requires, and 50% of its steam requirement. DOE projects the annual energy savings at $10 million. Excess power will be sold to Jersey Central Power and Light

Barber

1983-01-01

185

SAE Mil-1394 For Military and Aerospace Vehicle Applications  

NASA Technical Reports Server (NTRS)

Unique opportunity to utilize new technology while increasing vehicle and crew member safety. Demonstration of new technology that can be utilized for Crew Exploration Vehicle and other future manned vehicles. Future work for other cameras in the vehicle that can be IEEE1394 based without major vehicle modifications. Demonstrates that LM can share information and knowledge between internal groups and NASA to assist in providing a product in support of the NASA Return to Flight Activities. This upgrade will provide a flight active data bus that is 100 times faster than any similar bus on the vehicle.

Dunga, Larry; Wroble, Mike; Kreska, Jack

2004-01-01

186

Amino Acids in the Antarctic Martian Meteorite Mil03346.  

National Technical Information Service (NTIS)

The report by McKay et al. that the Martian meteorite ALH84001 contains evidence for life on Mars remains controversial. Of central importance is whether ALH84001 and other Antarctic Martian meteorites contain endogenous organic compounds. In any investig...

D. P. Glavin A. Aubrey

2005-01-01

187

Super heavy 6.0 mils Cu wire ball bonding  

Microsoft Academic Search

The quest to replace wire material from gold (Au) to Copper (Cu) in wire bonding interconnect has been in the industry since few decades. As the Cu wire bonding manufacturing process matures, the idea of substituting Al wedge bond with Cu ball bond is mooted. Such substitution could potentially reap benefits of lower machine cost of ownership and better utilization

Tan Poh Chai; Joe Tan; M. Sivakumar; J. Premkumar; James Song; Y. M. Wong

2008-01-01

188

Magnetic Particle Inspection Using MIL-STD-1949.  

National Technical Information Service (NTIS)

Magnetic particle inspection is an effective, rapid, inexpensive, and hence much used, nondestructive evaluation method for parts made from ferritic steels. This article discusses various critical aspects of the recently revised Military Standard 1949 whi...

B. Strauss L. J. Swartzendruber

1990-01-01

189

Dictionary: Papago/Pima--English, English--Papago/Pima = O'othham--Mil-gahn, Mil-gahn--O'othham.  

ERIC Educational Resources Information Center

Useful for both linguists and laymen because of its scientific validity and accuracy, the second edition of the Papago/Pima-English dictionary gives full definitions for over 5,000 entries. Beginning with a practical alphabet for Papago-Pima and a guide to the dictionary, the book is divided into two parts. In addition to the lexical entries, Part…

Saxton, Dean; And Others

190

Laboratory Evaluation of MIL-T-83133 JP-8 Fuel in Army Diesel Engines.  

National Technical Information Service (NTIS)

To support the need to upgrade aviation turbine fuel JP-8 from 'emergency' to 'alternate' status for diesel-powered equipment and to further advance its use as a single-fuel concept, four Army diesel engines were evaluated by dynamometer tests in cyclic e...

E. C. Owens S. J. Lestz W. E. Likos

1988-01-01

191

MISR Level 2 TOA/Cloud Stereo parameters (MIL2TCST_V1)  

NASA Technical Reports Server (NTRS)

The MISR Top-of-Atmosphere (TOA)/Cloud Stereo geophysical parameters include stereoscopically-derived cloud motion vectors (winds), cloud-top heights, and an accompanying cloud mask. The Stereo product geophysical parameters include a stereoscopically-derived cloud mask and cloud height on a 1.1 km grid. It also includes cloud motion vectors on a 70.4 km grid. The three types of stereo heights are: the BestWind heights are only calculated for those regions where the associated wind vectors passed the quality tests. Therefore, they have sparse coverage but since the wind correction is included, these contain our 'best guess' as to what the true heights are. The WithoutWind heights are calculated assuming a constant wind vector of zero. They have almost complete coverage and therefore form a nice 'pretty picture' of the relative cloud heights over small areas. The RawWind heights are a diagnostic product as they are calculated using all available wind vectors (even the bad ones). It is therefore recommended that one only use the Best and Without wind products. It is important to remember that the stereo matchers pick up the layer of maximum contrast, which is not necessarily the same as the highest cloud so all the stereo heights are keyed to this level of maximum contrast. Therefore, higher and thinner cirrus layers may not be detected by any of the height fields. [Location=GLOBAL] [Temporal_Coverage: Start_Date=2000-02-24; Stop_Date=] [Spatial_Coverage: Southernmost_Latitude=-90; Northernmost_Latitude=90; Westernmost_Longitude=-180; Easternmost_Longitude=180] [Data_Resolution: Latitude_Resolution=1.1 km; Longitude_Resolution=1.1 km; Horizontal_Resolution_Range=1 km - < 10 km or approximately .01 degree - < .09 degree; Temporal_Resolution=about 15 orbits/day; Temporal_Resolution_Range=Daily - < Weekly].

Diner, David J. (Principal Investigator)

192

MISR Level 2 TOA/Cloud Stereo parameters (MIL2TCST_V2)  

NASA Technical Reports Server (NTRS)

The MISR Top-of-Atmosphere (TOA)/Cloud Stereo geophysical parameters include stereoscopically-derived cloud motion vectors (winds), cloud-top heights, and an accompanying cloud mask. The Stereo product geophysical parameters include a stereoscopically-derived cloud mask and cloud height on a 1.1 km grid. It also includes cloud motion vectors on a 70.4 km grid. The three types of stereo heights are: the BestWind heights are only calculated for those regions where the associated wind vectors passed the quality tests. Therefore, they have sparse coverage but since the wind correction is included, these contain our 'best guess' as to what the true heights are. The WithoutWind heights are calculated assuming a constant wind vector of zero. They have almost complete coverage and therefore form a nice 'pretty picture' of the relative cloud heights over small areas. The RawWind heights are a diagnostic product as they are calculated using all available wind vectors (even the bad ones). It is therefore recommended that one only use the Best and Without wind products. It is important to remember that the stereo matchers pick up the layer of maximum contrast, which is not necessarily the same as the highest cloud so all the stereo heights are keyed to this level of maximum contrast. Therefore, higher and thinner cirrus layers may not be detected by any of the height fields. [Temporal_Coverage: Start_Date=2000-02-24; Stop_Date=] [Spatial_Coverage: Southernmost_Latitude=-90; Northernmost_Latitude=90; Westernmost_Longitude=-180; Easternmost_Longitude=180] [Data_Resolution: Latitude_Resolution=1.1 km; Longitude_Resolution=1.1 km; Temporal_Resolution=about 15 orbits/day].

Diner, David J. (Principal Investigator)

193

Evaluation of Three Commercial Processes for Recycling used Military Antifreeze MIL-A-46153.  

National Technical Information Service (NTIS)

The Belvoir Research, Development and Engineering Center (BRDEC) was requested by the USAF to assist in evaluating the effectiveness of commercially offered used antifreeze recycling systems. BRDEC was solicited for assistance because of its mission respo...

D. Davis

1992-01-01

194

Endurance Pump Tests With Fresh and Purified MIL-H-5606 Hydraulic Fluid Historic Resources Survey.  

National Technical Information Service (NTIS)

There has been a move in the U.S. Armed Forces to begin using additional purifiers to clean up used hydraulic fluid for continued use to reduce the hydraulic fluid waste stream. Two 1500 hour pump tests were conducted to study if the fluid purification ha...

S. K. Sharma C. E. Snyder L. J. Gschwender G. J. Cecere T. Jenney

1998-01-01

195

MIL-L-87177 Lubricant Bulletproofs Connectors Against Chemical and Fretting Corrosion.  

National Technical Information Service (NTIS)

Electrical connectors corrode. Even our best SA and MC connectors finished with 50 to 100 microinches of gold over 50 to 100 microinches of nickel corrode. This work started because some, but not all, lots of connectors held in KC stores for a decade had ...

G. De Marquis J. T. Hanlon R. D. Taylor

2002-01-01

196

Contaminants from the Reaction of Aerozine 50 with MIL-L-7808D1.  

National Technical Information Service (NTIS)

The solid contaminants found deposited in the cavity between the fuel pump and the gear box of the Titan boosters have been analyzed and identified to be composed primarily of azelaic acid dihydrazide. This product was shown to have resulted from the inte...

H. H. Takimoto G. C. Denault

1968-01-01

197

Breakdown of Preservative Fluid MIL-PRF-46170 in Aircraft Hydraulic Systems.  

National Technical Information Service (NTIS)

This document summarized a series of laboratory tests performed to identify material forming on hydraulic system filters of fleet aircraft. Additional information obtained from outside sources is also summarized for background. Laboratory pump testing sho...

J. W. Moorman

2001-01-01

198

Remote Link Unit Functional Design: An Advanced Remote Terminal for MIL-STD-1553B.  

National Technical Information Service (NTIS)

This report presents a functional design of the Remote Link Unit (RLU). The RLU is an intelligent remote terminal which is compatible with hierarchical distributed processing. It has interface modules capable of processing subsystem data on-the-fly and su...

C. J. Tavora J. R. Glover G. W. Batten

1979-01-01

199

Constructing Free Standing Metal Organic Framework MIL-53 Membrane Based on Anodized Aluminum Oxide Precursor  

PubMed Central

Metal organic framework (MOF) materials have attracted great attention due to their well-ordered and controllable pores possessing of prominent potentials for gas molecule sorption and separation performances. Organizing the MOF crystals to a continuous membrane with a certain scale will better exhibit their prominent potentials. Reports in recent years concentrate on well grown MOF membranes on specific substrates. Free standing MOF membranes could have more important applications since they are independent from the substrates. However, the method to prepare such a membrane has been a great challenge because good mechanical properties and stabilities are highly required. Here, we demonstrate a novel and facile technique for preparing the free standing membrane with a size as large as centimeter scale. The substrate we use proved itself not only a good skeleton but also an excellent precursor to fulfill the reaction. This kind of membrane owns a strong mechanical strength, based on the fact that it is much thinner than the composite membranes grown on substrates and it could exhibit good property of gas separation.

Zhang, Yunlu; Gao, Qiuming; Lin, Zhi; Zhang, Tao; Xu, Jiandong; Tan, Yanli; Tian, Weiqian; Jiang, Lei

2014-01-01

200

Alternate Material Pallet, 40' x 48', MIL-STD-1660, Engineering Evaluation Tests.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted Engineering Evaluation Tests to determine if the Alternate Material Pallet manufactured by Hunter Paine Enterprise, Inc. in Lafayette California, could be...

J. L. Dugan

2003-01-01

201

Constructing Free Standing Metal Organic Framework MIL-53 Membrane Based on Anodized Aluminum Oxide Precursor.  

PubMed

Metal organic framework (MOF) materials have attracted great attention due to their well-ordered and controllable pores possessing of prominent potentials for gas molecule sorption and separation performances. Organizing the MOF crystals to a continuous membrane with a certain scale will better exhibit their prominent potentials. Reports in recent years concentrate on well grown MOF membranes on specific substrates. Free standing MOF membranes could have more important applications since they are independent from the substrates. However, the method to prepare such a membrane has been a great challenge because good mechanical properties and stabilities are highly required. Here, we demonstrate a novel and facile technique for preparing the free standing membrane with a size as large as centimeter scale. The substrate we use proved itself not only a good skeleton but also an excellent precursor to fulfill the reaction. This kind of membrane owns a strong mechanical strength, based on the fact that it is much thinner than the composite membranes grown on substrates and it could exhibit good property of gas separation. PMID:24821299

Zhang, Yunlu; Gao, Qiuming; Lin, Zhi; Zhang, Tao; Xu, Jiandong; Tan, Yanli; Tian, Weiqian; Jiang, Lei

2014-01-01

202

RS9000, a novel MEMS accelerometer family for Mil\\/Aerospace and safety critical applications  

Microsoft Academic Search

Mid accuracy navigation and control systems require gyros and accelerometer to predict the position of a moving object in free space. Accelerometers are used to perform initial levelling and correct the gyro drift on the move. Typically, accelerometer with a range of ±10g with overall bias stability better than 2 mg and scale factor composite repeatability of better than 1000

Jean-Michel Stauffer; Olivier Dietrich; Bertrand Dutoit

2010-01-01

203

Correlations in the (Sub)Mil1imeter Background from ACT x BLAST  

NASA Technical Reports Server (NTRS)

We present measurements of the auto- and cross-frequency correlation power spectra of the cosmic (sub)millimeter background at: 250, 350, and 500 microns (1200, 860, and 600 GHz) from observations made with the Balloon-borne Large Aperture Submillimeter Telescope, BLAST; and at 1380 and 2030 microns (218 and 148 GHz) from observations made with the Atacama Cosmology Telescope, ACT. The overlapping observations cover 8.6 deg(sup 2) in an area relatively free of Galactic dust near the south ecliptic pole (SEP). The ACT bands are sensitive to radiation from the CMB, the Sunyaev-Zel'dovich (SZ) effect from galaxy clusters, and to emission by radio and dusty star-forming galaxies (DSFGs), while the dominant contribution to the BLAST bands is from DSFGs. We confirm and extend the BLAST analysis of clustering with an independent pipeline, and also detect correlations between the ACT and BLAST maps at over 25(sigma) significance, which we interpret as a detection of the DSFGs in the ACT maps. In addition to a Poisson component in the cross-frequency power spectra, we detect a clustered signal at 4(sigma), and using a model for the DSFG evolution and number counts, we successfully fit all our spectra with a linear clustering model and a bias that depends only on red shift and not on scale. Finally, the data are compared to, and generally agree with, phenomenological models for the DSFG population. This study represents a first of its kind, and demonstrates the constraining power of the cross-frequency correlation technique to constrain models for the DSFGs. Similar analyses with more data will impose tight constraints 011 future models.

Hajian, Amir; Battaglia,Nick; Bock, James J.; Bond, J. Richard; Nolta, Michael R.; Sievers, Jon; Wollack, Ed

2011-01-01

204

Multi-Purpose, Moisture-Resistant, High Load Carrying Polyalphaolefin Based Grease, MIL-PRF-32014  

Microsoft Academic Search

A lithium-soap-thickened synthetic hydrocarbon (polyalphaolefin) grease was developed in response to failure of a sodium-soap-thickened mineral oil grease on long term storage in the F-107 engine of the Cruise Missile. The new grease was heavily fortified with performance improving additives and has demonstrated excellent results in bench tests, in an engine test and in the actual application. The superior capabilities

Lois Gschwender; Carl E. Snyder Jr; Shashi K. Sharma; George W. Fultz

2003-01-01

205

Bond-Strength Studies for 1-MIL-Diameter Gold Wires Bonded to Hybrid Microcircuit Substrates.  

National Technical Information Service (NTIS)

Detailed studies of the failure probability for gold wires bonded to multiplexer substrates under severe acceleration in the W79 artillery shell environments were made. The studies included: the calculated resultant pull forces exerted on the bond joints ...

Y. R. Kan V. C. Prantil

1981-01-01

206

Bond-strength studies for 1-mil-diameter gold wires bonded to hybrid microcircuit substrates  

SciTech Connect

Detailed studies of the failure probability for gold wires bonded to multiplexer substrates under severe acceleration in the W79 artillery shell environments were made. The studies included: the calculated resultant pull forces exerted on the bond joints due to the W79 acceleration environments; the suitability of the loop-hook pull tests and the use of the normal Gaussian distribution theory for statistical description of bond strengths; and the probability of failure for gold wires bonded to multiplexer substrates under artillery shell accelerations using fixed angle pull tests and a Weilbull distribution theory for the statistical description. Preliminary statistical analyses of the bond strength data obtained from the conventional loop-hook pull tests for a multiplexer substrate HMC, have shown that the ball bond is strong enough to withstand the 0.17 gram design limit load due to the W79 gun barrel environments with a very low probability of failure. For the wedge bond, however, the results of a statistical analysis for the bond strength agree with experience which shows that the wedge bonds are generally much weaker than ball bonds in multiplexer substrates, and the probability of failure may be high enough to cause a problem. The degradation of the wedge bond strength due to post-assembly testing is significant as indicated by the large increase in probability of failure for the post-assembly-tested wedge bonds. To illustrate this, consider a worst-case example which assumes all wires bonded to the hybrid microcircuit substrates have the same geometry and loading conditions. Assuming the W79 JTA has approximately 2760 of these bonded wires, the probabilities of failure are 0.0179% for virgin wedge bonds and 2.1% for post-assembly-tested wedge bonds.

Kan, Y.R.; Prantil, V.C.

1981-12-01

207

MIL-STD-1660 Tests on 81mm Mortar Pallet with Adapters.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center and School (USADACS), Validation Engineering Division (SMCAC-DEV), was tasked by U.S. Army Armament Research, Development and Engineering Center (ARDEC), SMCAR-AEP, to conduct tests on the 81mm mortar pallet with ad...

W. R. Meyer

1992-01-01

208

Homeless Veterans of the Mil-Volunteer Force: A Social Selection Perspective  

Microsoft Academic Search

Recent research has shown that men who served in the military during the early years of the all-volunteer force (AVF) have a higher risk of homelessness than do veterans of other eras and nonveterans of comparable ages. The current article draws on data from the 1996 National Survey of Homeless Assistance Providers and Clients in order to examine differences between

Richard Tessler; Robert Rosenheck; Gail Gamache

2003-01-01

209

Constructing Free Standing Metal Organic Framework MIL-53 Membrane Based on Anodized Aluminum Oxide Precursor  

NASA Astrophysics Data System (ADS)

Metal organic framework (MOF) materials have attracted great attention due to their well-ordered and controllable pores possessing of prominent potentials for gas molecule sorption and separation performances. Organizing the MOF crystals to a continuous membrane with a certain scale will better exhibit their prominent potentials. Reports in recent years concentrate on well grown MOF membranes on specific substrates. Free standing MOF membranes could have more important applications since they are independent from the substrates. However, the method to prepare such a membrane has been a great challenge because good mechanical properties and stabilities are highly required. Here, we demonstrate a novel and facile technique for preparing the free standing membrane with a size as large as centimeter scale. The substrate we use proved itself not only a good skeleton but also an excellent precursor to fulfill the reaction. This kind of membrane owns a strong mechanical strength, based on the fact that it is much thinner than the composite membranes grown on substrates and it could exhibit good property of gas separation.

Zhang, Yunlu; Gao, Qiuming; Lin, Zhi; Zhang, Tao; Xu, Jiandong; Tan, Yanli; Tian, Weiqian; Jiang, Lei

2014-05-01

210

Correlations in the (Sub)Mil1imeter Background from ACT x BLAST.  

National Technical Information Service (NTIS)

We present measurements of the auto- and cross-frequency correlation power spectra of the cosmic (sub)millimeter background at: 250, 350, and 500 microns (1200, 860, and 600 GHz) from observations made with the Balloon-borne Large Aperture Submillimeter T...

A. Hajian E. Wollack J. Sievers J. J. Bock J. R. Bond M. R. Nolta N. Battaglia

2011-01-01

211

Technical Raster Transfer Using West Coast Information Systems' Data Submitted by: OO-ALC/DSGC-SCB Supporting the EDCARS Program, MIL-STD-1840A, MIL-R-28002A (Raster). Quick Short Test Report.  

National Technical Information Service (NTIS)

The primary objective of the Air Force Continuous Acquisition and Life-cycle Support (CALS) Test Network (AFCTN) is to evaluate the effectiveness of the CALS standards for technical data interchange and to demonstrate the technical capabilities and operat...

G. Lammers M. Lammers

1994-01-01

212

Novel two-parameter flow cytometry (MIL4\\/SSC followed by MIL4\\/CT7) allows for identification of five fractions of guinea pig leukocytes in peripheral blood and lymphoid organs  

Microsoft Academic Search

Though the guinea pig has been an extremely useful animal model for a variety of diseases, the tools necessary to undertake a full-scale immunological analysis of the guinea pig have been lacking. For instance, traditional two-parameter forward\\/side scatter (FSC\\/SSC) flow cytometry, though effective in human and other animal models, is unable to adequately identify the distinct fractions of guinea pig

Mari Takizawa; Joe Chiba; Shinji Haga; Toshihiko Asano; Tsuyoshi Yamazaki; Naoki Yamamoto; Mitsuo Honda

2006-01-01

213

Laboratory evaluation of MIL-T-83133 JP-8 fuel in army diesel engines. Interim report, October 1984-January 1988  

SciTech Connect

To support the need to upgrade aviation turbine fuel JP-8 from 'emergency' to 'alternate' status for diesel-powered equipment and to further advance its use as a single-fuel concept, four Army diesel engines were evaluated by dynamometer tests in cyclic endurance test procedures using JP-8 fuel and compared to baseline performance using diesel fuel (DF-2). Results showed the advantages for JP-8 fuel to include: Increased engine efficiency at the maximum power conditions, Lower rate of cylinder combustion chamber deposit formation, Less contamination of the engine lubricant, Less wear of the upper ring area, Lower rate of depletion of the lubricant additives, Less corrosive wear of the engine bearings, and Fewer deposits on the fuel injectors. JP-8 was found to be satisfactory for use in all engines tested. Abnormal wear occurred in the fuel injection pump of the GM 6.2L engine while operating on JP-8 during an engine dynamometer test. This wear resulted in higher fuel-delivery rates and erratic injection timing. Later field tests did not show such wear problems. the use of JP-8 in the diesel-engine powered vehicles holds some advantages, notably for the engine and oil durability for most engines tested. The disadvantages include reduced vehicle range and reduced maximum power.

Likos, W.E.; Owens, E.C.; Lestz, S.J.

1988-01-01

214

Over-expression of IL33 leads to spontaneous pulmonary inflammation in mIL33 transgenic mice  

Microsoft Academic Search

IL-33 plays an important role in inflammatory diseases including hypersensitive diseases like asthma, autoimmune diseases like rheumatoid arthritis, cardiovascular diseases like heart failure and neurodegenerative diseases like Alzheimer's disease. Here we reported the generation of an IL-33 transgenic mouse, in which mouse IL-33 full-length cDNA was controlled under the CMV promoter. The transgenic IL-33 was released as a cleaved form

Xiang Zhiguang; Chen Wei; Ravary Steven; Dong Wei; Zhang Wei; Mu Rong; Li Zhanguo; Zhang Lianfeng

2010-01-01

215

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

Microsoft Academic Search

Proton test and space-flight single event effect data for NASA's first fiber optic data bus are presented. Bit error rate predictions based on a proton direct ionization model agree well with flight data for proton-belt and solar-flare effects. Specifically, the authors discuss the SEUs (single event upsets) seen in space during the first months of the SAMPEX (Solar Anomalous Magnetospheric

Kenneth A. LaBel; Paul Marshall; Cheryl Dale; Christina M. Crabtree; E. G. Stassinopoulos; Jay T. Miller; Michele M. Gates

1993-01-01

216

Extending the granularity of representation and control for the MIL-STD CAIS 1.0 node model  

NASA Technical Reports Server (NTRS)

The Common APSE (Ada 1 Program Support Environment) Interface Set (CAIS) (DoD85) node model provides an excellent baseline for interfaces in a single-host development environment. To encompass the entire spectrum of computing, however, the CAIS model should be extended in four areas. It should provide the interface between the engineering workstation and the host system throughout the entire lifecycle of the system. It should provide a basis for communication and integration functions needed by distributed host environments. It should provide common interfaces for communications mechanisms to and among target processors. It should provide facilities for integration, validation, and verification of test beds extending to distributed systems on geographically separate processors with heterogeneous instruction set architectures (ISAS). Additions to the PROCESS NODE model to extend the CAIS into these four areas are proposed.

Rogers, Kathy L.

1986-01-01

217

Visco-elastic effects in MIL-L-7808-type lubricant. III - Model implementation in bearing dynamics computer code  

NASA Astrophysics Data System (ADS)

Modeling of the dynamic performance of a high-speed ball bearing is carried out as a function of the visco-elastic behavior of the lubricant. For a given bearing geometry and a set of operating conditions, the cage motion becomes relatively unstable as the lubricant shear modulus and critical shear stress values are varied to introduce increased elastic effects and lower traction coefficients. A potential for correlation of bearing instabilities to fundamental properties of the lubricant is thereby demonstrated.

Gupta, P. K.

1992-10-01

218

MIL-STD-1660 Test of PA116 Container on a Standard Metal Pallet with ForkTine Protection.  

National Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center and School (USADACS) was asked to design a protective system into the Standard Metal Pallet to prevent forklift tines from puncturing the PA116 containers. As a result, a guard plate was added to the PA116 pallet ad...

A. C. McIntosh

1989-01-01

219

Technical Illustration Transfer Using Auto-trol Technology's Data: MIL-D-28000A (IGES). Quick Short Test Report.  

National Technical Information Service (NTIS)

The primary objective of the Air Force Continuous Acquisition and Life-cycle Support (CALS) Test Network (AFCTN) is to evaluate the effectiveness of the CALS standards for technical data interchange and to demonstrate the technical capabilities and operat...

G. Lammers M. Lammers

1993-01-01

220

Capability study on the destructive pull test of 1 mil gold wire bond and its asymmetric distribution  

Microsoft Academic Search

The statistical process control (SPC) of destructive pull test on 1 Au gold wire is studied on two high-rel devices, namely #1 and #2. It was found that the Cpk of both parts are around 1.2, which have not meet our goal of 1.33 and the ultimately six sigma (Cpk= 2). However, this study shows that the traditional method of

Jin Peng

2008-01-01

221

Chloroplast DNA markers reveal a geographical divide across Argentinean southern beech Nothofagus nervosa (Phil.) Dim. et Mil. distribution area  

Microsoft Academic Search

Nothofagus nervosa is one of the most important species of the temperate forests of southern South America. On the eastern slope of the Andes\\u000a Mountains (Argentina) it has a very small and narrow natural distribution area which follows the valleys of the numerous west-east\\u000a lake basins. Re-colonisation after the last glaciation is assumed to have originated from refugia located in

P. Marchelli; L. Gallo; F. Scholz; B. Ziegenhagen

1998-01-01

222

Mission-oriented requirements for updating MIL-H-8501. Volume 2: STI background and rationale. [military rotorcraft  

NASA Technical Reports Server (NTRS)

A supplement to the structure of a new flying and ground handling qualities specification for military rotorcraft structure is presented in order to explain the background and rationale for the specification structure, the proposed forms of criteria, and the status of the existing data base. Critical gaps in the data base for the new structure are defined, and recommendations are provided for the research required to address the most important of these gaps.

Clement, W. F.; Hoh, R. H.; Mitchell, D. G.; Ferguson, S. W., III

1985-01-01

223

Engineering data transfer test with EDCARS using MIL-R-28002 (Raster). Laboratory Acceptance Test and User Application Test  

SciTech Connect

This paper documents the results of a sequence of tests conducted to evaluate the DoD Computer-aided Acquisition and Logistic Support (CALS) data interchange capability of the Air Force Engineering Data Computer-Assisted Retrieval System (EDCARS). The CALS initiative specifies a standard digital interface to streamline the interchange of technical data between the DoD and the commercial sector. The CALS Test Network (CTN) is tasked to conduct tests of military standards which specify this digital interface. The testing results outlined in this report are intended to evaluate the EDCARS systems`s ability to sport CALS data interchanges and establish the level of technical data interoperability implemented at this DoD engineering data repository.

Not Available

1992-04-17

224

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

National Technical Information Service (NTIS)

A conventional gas metal arc welding (GMAW) butt-joining process has been modeled using a two-way fully coupled, transient, thermal-mechanical finite-element procedure. To achieve two-way thermal mechanical coupling, the work of plastic deformation result...

C. Yen J. S. Snipes M. Grujicic R. Yavari S. Ramaswami

2013-01-01

225

Magnetite in Martian Meteorite Mil 03346 and Gusev Adirondack Class Basalt: Mossbauer Evidence for Variability in the Oxidation State of Adirondack Lavas  

NASA Technical Reports Server (NTRS)

The Moessbauer spectrometers on the Mars Exploration Rovers Spirit (Gusev crater) and Opportunity (Meridiani Planum) have returned information on the oxidation state of iron, the mineralogical composition of Fe-bearing phases, and the distribution of Fe among oxidation states and phases [1,2,3]. To date, approx.100 and approx.85 surface targets have been analyzed by the Spirit and Opportunity spectrometers, respectively. Twelve component subspectra (8 doublets and 4 sextets) have been identified and most have been assigned to mineralogical compositions [4]. Two sextet subspectra result from the opaque and strongly magnetic mineral magnetite (Fe3O4 for the stoichiometric composition), one each for the crystallographic sites occupied by tetrahedrally-coordinated Fe3+ and by octahedrally-coordinated Fe3+ and Fe2+. At Gusev crater, the percentage of total Fe associated with magnetite for rocks ranges from 0 to approx. 35% (Fig. 1) [3]. The range for soils (approx.5 to approx.12% of total Fe from Mt, with one exception) is narrower. The ubiquitous presence of Mt in soil firmly establishes the phase as the strongly magnetic component in martian soil [4,5].

Morris, R. V.; McKay, G. A.; Ming, D. W.; Klingelhoefer, G.; Schroeder, C.; Rodionov, D.; Yen, A.

2006-01-01

226

Magnetite in Martian Meteorite Mil 03346 and Gusev Adirondack Class Basalt: Moessbauer Evidence for Variability in the Oxidation State of Adirondack Lavas  

NASA Technical Reports Server (NTRS)

The Moessbauer spectrometers on the Mars Exploration Rovers Spirit (Gusev crater) and Opportunity (Meridiani Planum) have returned information on the oxidation state of iron, the mineralogical composition of Fe-bearing phases, and the distribution of Fe among oxidation states and phases [1,2,3]. To date, 100 and 85 surface targets have been analyzed by the Spirit and Opportunity spectrometers, respectively. Twelve component subspectra (8 doublets and 4 sextets) have been identified and most have been assigned to mineralogical compositions [4]. Two sextet subspectra result from the opaque and strongly magnetic mineral magnetite (Fe3O4 for the stoichiometric composition), one each for the crystallographic sites occupied by tetrahedrally-coordinated Fe3+ and by octahedrally-coordinated Fe3+ and Fe2+. At Gusev crater, the percentage of total Fe associated with magnetite for rocks ranges from 0 to 35% (Fig. 1) [3]. The range for soils (5 to 12% of total Fe from Mt, with one exception) is narrower. The ubiquitous presence of Mt in soil firmly establishes the phase as the strongly magnetic component in martian soil

Morris, R. V.; McKay, G. A.; Ming, D. W.; Klingelhoefer, G.; Schroeder, C.; Rodionov, D.; Yen, A.

2006-01-01

227

A comparison of the V/STOL handling qualities of the VAK-191B with the requirements of AGARD report 577 and MIL-F-83300  

NASA Technical Reports Server (NTRS)

The handling qualities of the VAK-191B VTOL aircraft are compared with current V/STOL handling qualities requirements. The aircraft handling qualities were superior to other V/STOL fighter aircraft. Several deficiencies which would seriously affect shipboard V/STOL operation includes: (1) poor hovering precision; (2) inadequate mechanical control characteristics; (3) nonlinear pitch and roll response; (4) an uncommanded movement of the height control lever; (5) low pitch control sensitivity; (6) excessive dihedral effect; and (7) inadequate overall thrust response. The attitude command control system resulted on reduced pilot workload during hover and low speed flight.

Anderson, S. B.

1979-01-01

228

Towards the reactivity of MIL53 or Fe III(OH) 0.8F 0.2[O 2CC 6H 4CO 2]versus lithium  

Microsoft Academic Search

We demonstrate here the reversible electrochemical insertion of lithium into the hybrid porous solid FeIII(OH)0.8F0.2[O2C-C6H4-CO2]. Used as an electrode in Li-half cell, this material shows a reversible redox process around 3.0V vs. Li+\\/Li° exchanging 0.6Li per formula unit with interesting capacity retention and rate capability. Moreover, it reveals an interesting feature for MOFs with large tunnels: the uptake of electrolyte

F. Millange; G. Férey; M. Morcrette; C. Serre; M. L. Doublet; J. M. Grenèche; J.-M. Tarascon

2007-01-01

229

Mucosal gene therapy using a pseudotyped lentivirus vector encoding murine interleukin-10 (mIL-10) suppresses the development and relapse of experimental murine colitis  

PubMed Central

Background Therapeutic gene transfer is currently being evaluated as a potential therapy for inflammatory bowel disease. This study investigates the safety and therapeutic benefit of a locally administered lentiviral vector encoding murine interleukin-10 in altering the onset and relapse of dextran sodium sulfate induced murine colitis. Methods Lentiviral vectors encoding the reporter genes firefly-luciferase and murine interleukin-10 were administered by intrarectal instillation, either once or twice following an ethanol enema to facilitate mucosal uptake, on Days 3 and 20 in Balb/c mice with acute and relapsing colitis induced with dextran sulfate sodium (DSS). DSS colitis was characterized using clinical disease activity, macroscopic, and microscopic scores. Bioluminescence optical imaging analysis was employed to examine mucosal lentiviral vector uptake and transgene expression. Levels of tumor necrosis factor-? and interleukin-6 in homogenates of rectal tissue were measured by ELISA. Biodistribution of the lentiviral vector to other organs was evaluated by real time quantitative PCR. Results Mucosal delivery of lentiviral vector resulted in significant transduction of colorectal mucosa, as shown by bioluminescence imaging analysis. Lentiviral vector-mediated local expression of interleukin-10 resulted in significantly increased levels of this cytokine, as well as reduced levels of tumor necrosis factor-? and interleukin-6, and significantly reduced the clinical disease activity, macroscopic, and microscopic scores of DSS colitis. Systemic biodistribution of locally instilled lentiviral vector to other organs was not detected. Conclusions Topically-delivered lentiviral vectors encoding interleukin-10 safely penetrated local mucosal tissue and had therapeutic benefit in this DSS model of murine colitis.

2014-01-01

230

Examination of Alternative Pretreatments to Hexavalent Chromium Based DOD-P-15328D Wash Primer for MIL-A-46100D High Hard Steel Armor.  

National Technical Information Service (NTIS)

Hexavalent Chromium based compounds with their associated health and environmental risks have necessitated reductions and even eliminations of their usage in U.S. Army weapon systems. These compounds are primarily associated with pretreatments and convers...

B. E. Placzankis C. E. Miller J. V. Kelley

2005-01-01

231

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

Microsoft Academic Search

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

Santosh Anil Kudtarkar

2008-01-01

232

Analysis of Delivery Accuracy for AH-1G (COBRA) Launched 2.75-Inch Rockets from Tests Conducted January-March 1972 at China Lake, California.  

National Technical Information Service (NTIS)

The accuracy of the AH-1G (COBRA)/2.75-Inch Rocket system was determined. Results are -9.4 mils in pitch, 9.3 mils in deflections for pass-to-pass variable bias. The values 9.1 mils (at 3000 meters) to 20.6 mils (at 1300 meters) in pitch, and 9.9 mils in ...

W. J. Baumen

1974-01-01

233

46 CFR 160.010-1 - Incorporation by reference.  

Code of Federal Regulations, 2010 CFR

...Specifications MIL-P-19644 CâPlastic Molding Material (Polystyrene Foam, Expanded Bead). MIL-R-21607 CâResins... MIL-P-40619 AâPlastic Material, Cellular, Polystyrene (For Buoyancy Applications). [CGD...

2009-10-01

234

Laser drilling of vias in dielectric for high density multilayer LSHI thick film circuits  

NASA Technical Reports Server (NTRS)

A design analysis of a high density multilevel thick film digital microcircuit used for large scale integration is presented. The circuit employs 4 mil lines, 4 mil spaces and requires 4 mil diameter vias. Present screened and fired thick film technology is limited on a production basis to 16 mil square vias. A process whereby 4 mil diameter vias can be fabricated in production using laser technology was described along with a process to produce 4 mil diameter vias for conductor patterns which have 4 mil lines and 4 mil spacings.

Cocca, T.; Dakesian, S.

1977-01-01

235

Revision of FED-STD-209D and MIL-STD-1246B and development of IES (Institute of Environmental Sciences) contamination control recommended practices in the United States of America  

SciTech Connect

In the United States of America, numerous organizations are writing standards and recommend practices for contamination control and cleanroom applications. The American Society for Testing and Materials (ASTM), the Institute of Environmental Sciences (IES), and various US Government agencies are among the organizations with a vested interest in publishing standards and recommended practices on these subjects. In the early years of contamination control and cleanroom technology, significant work was done in the US on standards and recommended practices. Proprietary standards were established by companies and other documents were produced by Federal agencies and technical organizations. In 1982, the IES began to focus on recommended practices, and the US General Services Administration (GSA) commissioned the IES to review and rewrite US Federal Standard 209 (FED-STD-209). The ASTM continues to review and update their standards on cleanroom applications on a periodic basis. Now, in 1990, US military organizations are beginning to review their cleanroom documents as well. This paper will discuss the preparation of IES Recommended Practices and Standards for contamination control and cleanroom applications. It will describe the current status of four IES Recommended Practices and two US Government documents.

Mielke, R.L.

1990-01-01

236

Research and Development of Aircraft Control Actuation Systems. The Development of a Flight Control System Simulator, Research on a Control Surface Flutter Suppression Technique and High Temperature Testing of Mil-H-83282.  

National Technical Information Service (NTIS)

This report presents the results of the following three research and development activities: the design, fabrication and test of a multi-channel flight control system hybrid simulator; the analysis and application of a flutter damping technique for hydrau...

G. D. Jenney

1975-01-01

237

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 Technical Information Service (NTIS)

The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) was tasked by the Transportation Engineering Division (SJMAC-DET) to conduct an Evaluation Test to determine if the Grate Pallet 8232 (GP-8232) Vehicle Pallet, manu...

P. W. Barickman

2003-01-01

238

Air Force AERO Propulsion Laboratory Efforts under the Rtd Plan for Improved Aircraft Turbine Engine Lubricants.  

National Technical Information Service (NTIS)

The program was conducted in three phases: investigation of more stringent MIL-L-7808 requirements, assessment of MIL-L-23699 oil capabilities, and investigation of advanced new materials. From the program, MIL-L-7808E was upgraded to MIL-L-007808F (USAF)...

K. L. Berkey G. A. Beane L. J. DeBrohun

1967-01-01

239

The establishment of a production-ready manufacturing process utilizing thin silicon substrates for solar cells  

NASA Technical Reports Server (NTRS)

Three inch diameter Czochralski silicon substrates sliced directly to 5 mil, 8 mil, and 27 mil thicknesses with wire saw techniques were procured. Processing sequences incorporating either diffusion or ion implantation technologies were employed to produce n+p or n+pp+ solar cell structures. These cells were evaluated for performance, ease of fabrication, and cost effectiveness. It was determined that the use of 7 mil or even 4 mil wafers would provide near term cost reductions for solar cell manufacturers.

Pryor, R. A.

1980-01-01

240

Gravimetric Determination of Sediment in Turbine Engine Lubricating Oils.  

National Technical Information Service (NTIS)

This program was conducted to establish the usefulness of gravimetric filtration for the quantitative determination of the total combustible and noncombustible sediment present in aircraft turbine engine lubricating oils. Both MIL-L-7808 and MIL-L-23699 l...

W. R. Craig

1975-01-01

241

32 CFR 213.5 - Responsibilities.  

Code of Federal Regulations, 2013 CFR

...this part. 5 Copies may be obtained at http://www.dtic.mil/whs/directives/. (3) Provide necessary deployment...following: 6 Copies may be obtained at http://www.dtic.mil/whs/directives/. (1) Annually determine...

2013-07-01

242

77 FR 14490 - Defense Federal Acquisition Regulation Supplement: Alleged Crimes By or Against Contractor...  

Federal Register 2010, 2011, 2012, 2013

...S. Army Criminal Investigations Division at http://www.cid.army.mil/reportacrime.html,'' and contact information...S. Army Criminal Investigations Division at http://www.cid.army.mil/reportacrime.html. (ii) Air Force...

2012-03-12

243

46 CFR 164.018-5 - Specifications and standards incorporated by reference.  

Code of Federal Regulations, 2013 CFR

...Military Specification MIL-R-21607 D (August 5, 1976), entitled âResins, Polyester, Low Pressure Laminating, Fire-retardant.â (9) Military Specification MIL-C-43006 E (March 24, 1978), entitled âCloth and Strip...

2013-10-01

244

46 CFR 170.015 - Incorporation by reference.  

Code of Federal Regulations, 2013 CFR

...dla.mil/quicksearch/ . (1) MIL-P-21929B, Military Specification, Plastic Material, Cellular Polyurethane, Foam-in-Place, Rigid (2 Pounds per Cubic Foot), 15 January 1991, IBR approved for § 170.245. (2)...

2013-10-01

245

Performance of a hybrid cylindrical roller bearing  

Microsoft Academic Search

A 206-size hybrid (ceramic\\/steel) cylindrical roller bearing was tested in MIL-L-23699 C oil at several speeds and loads. Heat-generation data was collected and subsequently correlated with bearing-analysis software. Bearing-cage slip data was also collected at various oil-flow rates, oil temperatures, and with both MIL-L-7808 J and MIL-L-23699 C oils. The hybrid bearing was tested in MIL-L-23699 C oil for for

Stephen M. Schrader

1992-01-01

246

Recent Developments in Silver/Zinc Rechargeable Cell Studies  

NASA Technical Reports Server (NTRS)

This viewgraph presentation discusses silver/zinc cell casing configurations and test results examining discharge capacity and silver migration comparisons. The following recommendations were proposed: 1) Use silver-treated cellophane instead of clear cellophane; 2) Use split wrap for cellophane whenever possible; and 3) Strongly consider use of sausage casing with PVA film in the following configuration: 1-mil (tubular) SC/1-mil PVA film/2.3-mil plain or 6-mil fiber-reinforced SC tubular.

Lewis, Harlan L.

2001-01-01

247

40 CFR 86.1910 - How must I prepare and test my in-use engines?  

Code of Federal Regulations, 2010 CFR

...accumulated prior to the time a MIL is illuminated or trouble code...accumulated prior to the time a MIL is illuminated or trouble code...vehicle, you must describe the MIL or trouble code information in...follows: (1) You may use any diesel fuel that meets the...

2009-07-01

248

40 CFR 86.1910 - How must I prepare and test my in-use engines?  

Code of Federal Regulations, 2010 CFR

...accumulated prior to the time a MIL is illuminated or trouble code...accumulated prior to the time a MIL is illuminated or trouble code...vehicle, you must describe the MIL or trouble code information in...follows: (1) You may use any diesel fuel that meets the...

2010-07-01

249

Westinghouse Uses U.S. Air Force-Developed Standards.  

National Technical Information Service (NTIS)

Westinghouse has applied digital standards advantageously for the U.S. Air Force on its latest weapon systems. At present Westinghouse is applying Mil-Std-1750A (ISA), Mil-Std-1589B (Jovial 73 HOL), and Mil-Std-1553B (multiplex busing) to three major prog...

C. S. Shyman

1982-01-01

250

Chemical Defense Flight Glove Ensemble Evaluation.  

National Technical Information Service (NTIS)

Four chemical defense flight glove ensembles were evaluated for their effect on manual dexterity. Two- and three-layer combinations included in the study were: cotton liner/7 mil butyl/Nomex; cotton liner/12.5 mil epichlorohydron butyl/Nomex; Nomex/7 mil ...

J. Ross C. Ervin

1987-01-01

251

Storage of Synthetic Turbine Lubricants under Adverse Conditions.  

National Technical Information Service (NTIS)

The stability of six turbine lubricants consisting of four MIL-L-7808 fluids, one MIL-L-23699 fluid, and one MIL-L-7808 fluids containing a corrosion inhibitor with all being stored under adverse conditions were investigated. Conditions of storage consist...

H. A. Smith M. A. Schumacher

1983-01-01

252

Fluid Contamination of Aircraft-Cabin Air and Breathing Oxygen.  

National Technical Information Service (NTIS)

From different manufacturers, a series of lubricating oils (MIL-L-7808), hydraulic fluids (MIL-H-5606), and heat-transfer fluids (MIL-C-47220) were obtained to test their potential for contaminating aircraft breathing air and oxygen. No significant differ...

K. L. Paciorek J. H. Nakahara R. H. Kratzer

1979-01-01

253

An Evaluation of the Effect of the Thickness of Wash Primer.  

National Technical Information Service (NTIS)

Adhesion characteristics of the specifications MIL-C-22750A(WEP) epoxy-polyamide and the MIL-C-19537(Aer) acrylic-nitrocellulose systems using thick and thin coatings of MIL-C-8514(Aer) wash primer are compared over various metal surfaces. The adhesion of...

R. S. Adler

1966-01-01

254

Lubricant Friction and Durability Tests under Simulated Weapon Conditions.  

National Technical Information Service (NTIS)

Lubricant friction and durability tests were carried out on four lubricants: VV-L-800A(PL-S), MIL-L-14107B(LAW), MIL-L-46000A(LSA), and MIL-L-46150(LSA-T). The tests were conducted on the USAWECOM Friction and Wear Tester, a reciprocating motion machine i...

B. J. Bornong

1970-01-01

255

Positive Affect and the Experience of Meaning in Life  

Microsoft Academic Search

Six studies examined the role of positive affect (PA) in the experience of meaning in life (MIL). Study 1 showed strong relations between measures of mood, goal appraisals, and MIL. In multivariate analyses, PA was a stronger predictor of MIL than goal appraisals. In Study 2, the most consistent predictor of the experience of meaning in a day was the

Laura A. King; Joshua A. Hicks; Jennifer L. Krull; Amber K. Del Gaiso

2006-01-01

256

High assurance security and safety for digital avionics  

Microsoft Academic Search

This paper describes: 1. Why security is important for the new generation of digital avionics, 2. A significant evolution to computer security architectures and secure communications MILS (multiple independent levels of security\\/safety) capable of the high assurance to support MLS (multi-level security) systems without the complexity of traditional MLS systems, 3. The MILS RTOS partitioning kernel architecture, 4. The MILS

Joseph M. Jacob

2004-01-01

257

Water, hydrogen, deuterium, carbon, carbon-13, and oxygen-18 content of selected lunar material  

USGS Publications Warehouse

The water content of the breccia is 150 to 455 ppm, with a ??D from -580 to -870 per mil. Hydrogen gas content is 40 to 53 ppm with a ??D of -830 to -970 per mil. The CO2 is 290 to 418 ppm with S 13C = + 2.3 to + 5.1 per mil and ??18O = 14.2 to 19.1 per mil. Non-CO2 carbon is 22 to 100 ppm, ??18C = -6.4 to -23.2 per mil. Lunar dust is 810 ppm H2O (D = 80 ppm) and 188 ppm total carbon (??13C = -17.6 per mil). The 18O analyses of whole rocks range from 5.8 to 6.2 per mil. The temperature of crystallization of type B rocks is 1100?? to 1300??C, based on the oxygen isotope fractionation between coexisting plagioclase and ilmenite.

Friedman, I.; O'Neil, J. R.; Adami, L. H.; Gleason, J. D.; Hardcastle, K.

1970-01-01

258

Experimental selection of paromomycin and miltefosine resistance in intracellular amastigotes of Leishmania donovani and L. infantum.  

PubMed

Although widespread resistance of Leishmania donovani and L. infantum against miltefosine (MIL) and paromomycin (PMM) has not yet been demonstrated, both run the risk of resistance selection. Unraveling the dynamics and mechanisms of resistance development is key to preserve drug efficacy in the field. In this study, resistance against PMM and MIL was experimentally selected in vitro in intracellular amastigotes of several strains of both species with different antimony susceptibility background. To monitor amastigote susceptibility, microscopic determination of IC50-values and promastigote back-transformation assays were performed. Both techniques were also used to evaluate the susceptibility of field isolates from MIL-relapse patients. PMM-resistance could readily be selected in all species/strains, although promastigotes remained fully PMM-susceptible. Successful MIL-resistance selection was demonstrated only by promastigote back-transformation at increasing MIL-concentrations upon successive selection cycles. Important to note is that amastigotes with the MIL-resistant phenotype could not be visualized after Giemsa staining; hence, MIL-IC50-values showed no shift. The same phenomenon was observed in a set of recent clinical isolates from MIL-relapse patients. This study clearly endorses the need to use intracellular amastigotes for PMM- and MIL-susceptibility testing. When monitoring MIL-resistance, promastigote back-transformation should be used instead of the standard Giemsa staining. In-depth exploration of the mechanistic background of this finding is warranted. PMID:24615359

Hendrickx, S; Boulet, G; Mondelaers, A; Dujardin, J C; Rijal, S; Lachaud, L; Cos, P; Delputte, P; Maes, L

2014-05-01

259

Pairing Relationships Among Feldspathic Lunar Meteorites from Miller Range, Antarctica  

NASA Technical Reports Server (NTRS)

The Miller Range ice fields have been amongst the most prolific for lunar meteorites that ANSMET has searched [1-3]. Six different stones have been recovered during the 2005, 2007, and 2009 field seasons: MIL 05035 (142 g), MIL 07006 (1.4 g), MIL 090034 (196 g), MIL 090036 (245 g), MIL 090070 (137 g), and MIL 090075 (144 g). Of these, the five stones collected during the 2007 and 2009 seasons are feldspathic breccias. Previous work on the Miller Range feldspathic lunar meteorites (FLMs) has suggested that they are not all paired with each other [4-5]. Here we examine the pairing relationships among the Miller Range FLMs using petrography in concert with traceand major-element compositions.

Zeigler, Ryan A.; Korotev, R. L.; Jolliff, B. L.

2012-01-01

260

Hot-surface ignition tests of aircraft fluids. Final report, May 1987May 1988  

Microsoft Academic Search

Five fluids commonly found in aircraft-engine components, JP-4 and JP-8 fuels, Mil-H-5606 and Mil-H-83282 hydraulic fluids and Mil-L-7808 lubricating oil, were tested in the Aircraft Engine Nacelle Fire Test simulator (AENFTS) to define their Minimum Hot Surface Ignition Temperature (MHSIT's) when introduced as a spray or stream onto a hot engine bleed duct. The test employed a simple, uncluttered test

A. M. Johnson; A. J. Roth; N. A. Moussa

1988-01-01

261

Tuned support structure for structure-borne noise reduction of inertial navigator with dithered ring laser gyros (RLG)  

Microsoft Academic Search

Litton Marine Systems is manufacturing the third generation of the marine inertial navigators at the Sperry Marine Division using a new generation of dithered ring laser gyros (RLG) by Honeywell. To satisfy the US and foreign navies, stringent military requirements for shock (MIL-STD-901D), vibration (MIL-STD-167) and structure-borne noise (MIL-STD-740) demanded that a new approach in vibration control be employed. A

J. I. Lahham; D. J. Wigent; A. L. Coleman

2000-01-01

262

VMOS memory technology  

Microsoft Academic Search

VMOS technology is discussed as it applies to semiconductor memory. A 45-ns 1-kbit static RAM with a die size of 81 mil×125 mil and a cell area of 3.0 square mils is presented. The device is fabricated with the original grounded-source version of the VMOS process. Design considerations and electrical data are given for a 30-ns scaled version of the

T. J. Rodgers; W. RANDY HILTPOLD; BRUCE FREDERICK; JOHN J. BARNES; FREDRICK B. JENNE; JAMES D. TROTTER

1977-01-01

263

Carbon Isotopic Evidence for Methane Hydrate Instability During Quaternary Interstadials  

Microsoft Academic Search

Large (about 5 per mil) millennial-scale benthic foraminiferal carbon isotopic oscillations in the Santa Barbara Basin during the last 60,000 years reflect widespread shoaling of sedimentary methane gradients and increased outgassing from gas hydrate dissociation during interstadials. Furthermore, several large, brief, negative excursions (up to -6 per mil) coinciding with smaller shifts (up to -3 per mil) in depth-stratified planktonic

James P. Kennett; Kevin G. Cannariato; Ingrid L. Hendy; Richard J. Behl

2000-01-01

264

An application of martingales in the limit to a problem in information science  

Microsoft Academic Search

Martingales in the limit (mils) were introduced about two decades ago as nontrivial extensions of martingales. It was proved in 1976 that they have good convergence properties (at least) for real-valued stochastic processes. But, so far there have not been found any “real-life” applications of mils.In this article, we apply the full generality of mils to a problem in information

L. Egghe

1999-01-01

265

Mouse interleukin-20 receptor 1a targets renal epithelial cells and is associated with renal calcium deposition  

Microsoft Academic Search

We previously identified a novel transcript, mouse (m)IL-20R1a, generated by alternative splicing of the mIL-20R1 gene and studied its possible in vitro functions. However, the function of mIL-20R1a in vivo is unknown. Overexpression of mIL-20R1a in transgenic FvB\\/N mice resulted in the pathological change of excess calcium deposited in the kidneys. The interplay between renal epithelial cells and calcium oxalate

Chi-Chen Wei; Ming-Shi Chang; M-S Chang

2009-01-01

266

Interleukin1 receptor accessory protein interacts with the type II interleukin-1 receptor  

Microsoft Academic Search

Stably transfected HEK-293 cells express on their surface the murine type II IL-1 receptor (mIL-1RII) as demonstrated by FACS analysis using the mAb 4E2, however binding of [125I]-hrIL-1? to these cells is nearly absent. Saturable high affinity binding of [125I]-hrIL-1? is observed when the murine IL-1 receptor accessory protein (mIL-1RAcP) is coexpressed with mIL-1RII. Binding of [125I]-hrIL-1? to mIL-1RII-mIL-1RAcP complex

David Malinowsky; Johan Lundkvist; Sophie Layé; Tamas Bartfai

1998-01-01

267

Hot-surface ignition tests of aircraft fluids. Final report, May 1987-May 1988  

SciTech Connect

Five fluids commonly found in aircraft-engine components, JP-4 and JP-8 fuels, Mil-H-5606 and Mil-H-83282 hydraulic fluids and Mil-L-7808 lubricating oil, were tested in the Aircraft Engine Nacelle Fire Test simulator (AENFTS) to define their Minimum Hot Surface Ignition Temperature (MHSIT's) when introduced as a spray or stream onto a hot engine bleed duct. The test employed a simple, uncluttered test section and a realistically simulated portion of the F-16 engine compartment. MHSIT's for all but Mil-H-83282 were consistently found to be higher than the fluids autoignition temperature.

Johnson, A.M.; Roth, A.J.; Moussa, N.A.

1988-11-01

268

Amazon capims (floating grassmats) - A source of C-13 enriched methane to the troposphere  

NASA Technical Reports Server (NTRS)

The C-13 isotopic composition of methane emitted to the troposphere from Amazon capims (floating grassmats) ranged from -36.9 to -48.0, per mil averaging -44.4 + or - 4.2 per mil. All pools of methane associated with the grassmats were enriched; methane withdrawn from plant stems ranged from -39 to -49 per mil while bubbles stirred from the root mat averaged -41.4 per mil. As the CH4 flux from these habitats makes up some 40 percent of the total flux from the Amazon floodplain, methane emissions from the region as a whole must be enriched in.

Chanton, Jeffrey; Crill, Patrick; Bartlett, Karen; Martens, Christopher

1989-01-01

269

Temperatures of serpentinization of ultramafic rocks based on O 18 \\/O 16 fractionation between coexisting serpentine and magnetite  

Microsoft Academic Search

Five lizardite-chrysotile type serpentinites from California, Guatemala and the Dominican Republic show oxygen isotope fractionations of 15.1 to 12.9 per mil between coexisting serpentine and magnetite (dO18 magnetite=-7.6 to -4.6 per mil relative to SMOW). Nine antigorites (mainly from Vermont and S. E. Pennsylvania) show distinctly smaller fractionations of 8.7 to 4.8 per mil (dO18 magnetite=-2.6 to +1.7 per mil).

David B. Wenner; Hugh P. Taylor

1971-01-01

270

Millepachine, a novel chalcone, induces G2/M arrest by inhibiting CDK1 activity and causing apoptosis via ROS-mitochondrial apoptotic pathway in human hepatocarcinoma cells in vitro and in vivo.  

PubMed

In this study, we reported millepachine (MIL), a novel chalcone compound for the first time isolated from Millettia pachycarpa Benth (Leguminosae), induced cell cycle arrest and apoptosis in human hepatocarcinoma cells in vitro and in vivo. In in vitro screening experiments, MIL showed strong antiproliferation activity in several human cancer cell lines, especially in HepG2 cells with an IC50 of 1.51 µM. Therefore, we chose HepG2 and SK-HEP-1 cells to study MIL's antitumor mechanism. Flow cytometry showed that MIL induced a G2/M arrest and apoptosis in a dose-dependent manner. Western blot demonstrated that MIL-induced G2/M arrest was correlated with the inhibition of cyclin-dependent kinase 1 activity, including a remarkable decrease in cell division cycle (cdc) 2 synthesis, the accumulation of phosphorylated-Thr14 and decrease of phosphorylation at Thr161 of cdc2. This effect was associated with the downregulation of cdc25C and upmodulation of checkpoint kinase 2 in response to DNA damage. MIL also activated caspase 9 and caspase 3, and significantly increased the ratio of Bax/Bcl-2 and stimulated the release of cytochrome c into cytosol, suggesting MIL induced apoptosis via mitochondrial apoptotic pathway. Associated with those effects, MIL also induced the generation of reactive oxygen species. In HepG2 tumor-bearing mice models, MIL remarkably and dose dependently inhibited tumor growth. Treatment of mice with MIL (20mg/kg intravenous [i.v.]) caused more than 65% tumor inhibition without cardiac damage compared with 47.57% tumor reduction by 5mg/kg i.v. doxorubicin with significant cardiac damage. These effects suggested that MIL and its easily modified structural derivative might be a potential lead compound for antitumor drug. PMID:23471882

Wu, Wenshuang; Ye, Haoyu; Wan, Li; Han, Xiaolei; Wang, Guangcheng; Hu, Jia; Tang, Minhai; Duan, Xingmei; Fan, Yi; He, Shichao; Huang, Li; Pei, Heying; Wang, Xuewei; Li, Xiuxia; Xie, Caifeng; Zhang, Ronghong; Yuan, Zhu; Mao, Yongqiu; Wei, Yuquan; Chen, Lijuan

2013-07-01

271

Effect of JP-8 Fuel on Material-Handling Engines.  

National Technical Information Service (NTIS)

The effect of MIL-T-83133C grade JP-8 fuel, with respect to MIL-F46162C 1% S DF-2, was established for Army Material Handling Equipment clean-bum diesel engines. The areas investigated included emissions (gaseous and particulate), power, performance, and ...

D. M. Yost

1992-01-01

272

76 FR 36905 - Information Collection Requirement; Defense Federal Acquisition Regulation Supplement; Taxes  

Federal Register 2010, 2011, 2012, 2013

...submitting comments. E-mail: dfars@osd.mil. Include OMB Control Number 0704- 0390...Internet at: http://www.acq.osd.mil/dpap/dars/dfars/index.htm...require the use of fuels (gasoline or diesel) and lubricants in taxis or vehicles...

2011-06-23

273

Production Engineering Measure Polycarbonate Plastic Film.  

National Technical Information Service (NTIS)

A slip polycarbonate film was made in gauges of .25 and .50 mil. This was produced without loss in mechanical or electrical strength. Biaxially oriented .25 and .50 mil polycarbonate film was produced by a direct process from the extruder through the draf...

L. S. Lazar

1966-01-01

274

Evaluation of Storage Effects on Commercial, Biodegradable, Synthetic or Biosourced Hydraulic Fluid.  

National Technical Information Service (NTIS)

In 2001-2002, testing was conducted to determine if commercially available, biodegradable, bio-based hydraulic fluid could meet or exceed the performance requirements in military combat/tactical hydraulic fluid specifications MIL-PRF 46170 & MIL-PRF 6083....

B. Brosnan

2006-01-01

275

Hydrogen Embrittlement of Steel in Metal Finishing Processes of Black Oxide and Zinc Phosphatize.  

National Technical Information Service (NTIS)

Static load tests were conducted with notched, steel tensile specimens after processing in black oxide (specification MIL-C-13924 Class 1) and also after processing in zinc phosphatize solution (specification MIL-P-16232C Type Z), to determine embrittleme...

R. H. Wolff

1966-01-01

276

The 200 Watts/Kilogram Solar Array Conceptual Approach Study. Phase 2: Assessment Report for Proof-of-Concept Experiments and Halley's Comet Concentrator Array.  

National Technical Information Service (NTIS)

The activities associated with the fabrication, handling, and testing of 2-mil solar cell modules on a flexible substrate are demonstrated. It is shown that 2-mil solar cells can be reliably handled, welded, and bonded to a Kapton substrate. Flexible Inva...

1977-01-01

277

Positive affect, meaning in life, and future time perspective: an application of socioemotional selectivity theory.  

PubMed

Four studies tested the prediction that positive affect (PA) would relate more strongly to meaning in life (MIL) as a function of perceived time limitations. In Study 1 (N = 360), adults completed measures of PA and MIL. As predicted, PA related more strongly to MIL for older, compared to younger, participants. In Studies 2 and 3, adults (N = 514) indicated their current position in their life span, and rated their MIL. PA, whether naturally occurring (Study 2) or induced (Study 3), was a stronger predictor of MIL for individuals who perceived themselves as having a limited amount of time left to live. Finally, in Study 4 (N = 98) students completed a measure of PA, MIL, and future time perspective (FTP). Results showed that PA was more strongly linked to MIL for those who believed they had fewer opportunities left to pursue their goals. Overall, these findings suggest that the experience of PA becomes increasingly associated with the experience of MIL as the perception of future time becomes limited. The contribution of age related processes to judgments of well-being are discussed. PMID:21707177

Hicks, Joshua A; Trent, Jason; Davis, William E; King, Laura A

2012-03-01

278

46 CFR 160.023-1 - Incorporation by reference.  

Code of Federal Regulations, 2013 CFR

...APPROVAL LIFESAVING EQUIPMENT Hand Combination Flare and Smoke Distress Signals § 160.023-1 Incorporation by reference...Military specifications MIL-S-18655 C, 3 May 1971âSignal, Smoke and Illumination, Marine, Mark 13, Mod 0. (b)...

2013-10-01

279

Surface mounting of very fine pitch components: a new challenge  

Microsoft Academic Search

Based on their experience in developing and using 16 and 12.5 mils peripheral pitch custom compact single chip packages, the authors analyze the evolution and today's limits of package and board technologies and assembly techniques, with emphasis on manufacturability. The authors present their manufacturing approach and quality and reliability results when using 16 and 12.5 mils peripheral ceramic leaded packages.

Jean Joly; Xavier Saint Martin

1991-01-01

280

7 CFR 340.8 - Container requirements for the movement of regulated articles.  

Code of Federal Regulations, 2013 CFR

...and subcellular elements, shall be packed in a sealed plastic bag of at least 5 mil thickness, inside a sturdy, sealed...Seeds. All seeds shall be transported in a sealed plastic bag of at least 5 mil thickness, inside a sealed...

2013-01-01

281

7 CFR 340.8 - Container requirements for the movement of regulated articles.  

Code of Federal Regulations, 2012 CFR

...and subcellular elements, shall be packed in a sealed plastic bag of at least 5 mil thickness, inside a sturdy, sealed...Seeds. All seeds shall be transported in a sealed plastic bag of at least 5 mil thickness, inside a sealed...

2012-01-01

282

7 CFR 340.8 - Container requirements for the movement of regulated articles.  

...and subcellular elements, shall be packed in a sealed plastic bag of at least 5 mil thickness, inside a sturdy, sealed...Seeds. All seeds shall be transported in a sealed plastic bag of at least 5 mil thickness, inside a sealed...

2014-01-01

283

40 CFR 721.10186 - Ethylhexyl oxetane (generic).  

Code of Federal Regulations, 2013 CFR

...set at 1.0 percent), and (c). Polyvinyl Alcohol gloves with a thickness of no less than 31.3 mils or Silvershield/4H sleeves with a thickness of no less than 2.7 mils have been shown to satisfy the requirements of § 721.63(a)(3)(i)...

2013-07-01

284

Coordinated investigation of midlatitude upper mesospheric temperature inversion layers and the associated gravity wave forcing by Na lidar and Advanced Mesospheric Temperature Mapper in Logan, Utah  

NASA Astrophysics Data System (ADS)

inversion layers (MIL) are well studied in the literature but their relationship to the dynamic feature associated with the breaking of atmospheric waves in the mesosphere/lower thermosphere (MLT) region are not well understood. Two strong MIL events (?T ~30 K) were observed above 90 km during a 6 day full diurnal cycle Na lidar campaign conducted from 6 August to 13 August Logan, Utah (42°N, 112°W). Colocated Advanced Mesospheric Temperature Mapper observations provided key information on concurrent gravity wave (GW) events and their characteristics during the nighttime observations. The study found both MILs were well correlated with the development and presence of an unstable region ~2 km above the MIL peak altitudes and a highly stable region below, implicating the strengthening of MIL is likely due to the increase of downward heat flux by the enhanced saturation of gravity wave, when it propagates through a highly stable layer. Each MIL event also exhibited distinct features: one showed a downward progression most likely due to tidal-GW interaction, while the peak height of the other event remained constant. During further investigation of atmospheric stability surrounding the MIL structure, lidar measurements indicate a sharp enhancement of the convective stability below the peak altitude of each MIL. We postulate that the sources of these stable layers were different; one was potentially triggered by concurrent large tidal wave activity and the other during the passage of a strong mesospheric bore.

Yuan, Tao; Pautet, P.-D.; Zhao, Y.; Cai, X.; Criddle, N. R.; Taylor, M. J.; Pendleton, W. R.

2014-04-01

285

Repeater For A Digital-Communication Bus  

NASA Technical Reports Server (NTRS)

Digital repeater circuit designed to extend range of communication on MIL-STD-1553 bus beyond original maximum allowable length of 300 ft. Circuit provides two-way communication, one way at time, and conforms to specifications of MIL-STD-1553. Crosstalk and instability eliminated.

Torres-Guzman, Esteban; Olson, Stephen; Heaps, Tim

1993-01-01

286

46 CFR 162.060-10 - Approval procedures.  

Code of Federal Regulations, 2013 CFR

...400, Arlington, VA 20598-7410, or by email to msc@uscg.mil: (1) Manufacturer's...point of contact, with telephone number or email address. (2) Name and location of...400, Arlington, VA 20598-7410, or by email to msc@uscg.mil, for...

2013-10-01

287

THE EFFECTS OF PLATING MATERIALS, BOND PAD SIZE AND BOND PAD GEOMETRY ON SOLDER BALL SHEAR STRENGTH  

Microsoft Academic Search

There has been a vast amount of literature published on the characterization of the shear strength of solder balls attached to ball grid array (BGA) substrates. This has allowed for the establishment of a quasi-defacto specification of 1000 grams- force shear strength on packages with 30 mil diameter solder balls and 25 mil pads for BGA components. There is significantly

Keith Rogers; Craig Hillman

288

Application of Multiple-Instance Learning for Hyperspectral Image Analysis  

Microsoft Academic Search

Multiple-instance learning (MIL) is a learning paradigm used for learning a target concept in the presence of noise or with an uncertainty in target information including class labels. Due to the difficult situations in which hyperspectral images (HSIs) are collected, research in this area is extremely relevant and directly applicable. In the following, an MIL framework is proposed for target

Jeremy Bolton; Paul Gader

2011-01-01

289

An experimental investigation of microstrip properties on soft substrates from 2 to 40 GHz  

NASA Technical Reports Server (NTRS)

Dispersion and loss characteristics of microstrip lines on 10 mil and 31 mil electrodeposited and electroless copper clad-Teflon substrates were experimentally obtained from 2 to 40 GHz. The roles of surface roughness and radiation in total loss were examined.

Romanofsky, R. R.; Bhasin, K. B.; Ponchak, G. E.; Downey, A. N.; Connolly, D. J.

1985-01-01

290

32 CFR 68.5 - Responsibilities.  

Code of Federal Regulations, 2013 CFR

...with this part and DoD Directive 1322.08E (see http://www.dtic.mil/whs/directives/corres/pdf/132208p.pdf ...08E, DoD Instruction (DoDI) 1322.25 (see http://www.dtic.mil/whs/directives/corres/pdf/132225p.pdf...

2013-07-01

291

32 CFR 182.2 - Applicability and scope.  

Code of Federal Regulations, 2013 CFR

...12 of DoD 5240.1-R.1 1 Available at http://www.dtic.mil/whs/directives/corres/pdf/524001r.pdf ...S-5210.36.2 2 Authorized users may obtain a copy at www.dtic.smil.mil/whs/directives. Others may send a...

2013-07-01

292

32 CFR 283.5 - Responsibilities.  

Code of Federal Regulations, 2013 CFR

...DoD Directive 5118.3. 1 1 Available at http://www.dtic.mil/whs/directives/. (2) If the aggregate amount...DoD Directive 1342.6. 2 2 Available at http://www.dtic.mil/whs/directives/. (2) If the aggregate...

2013-07-01

293

32 CFR 183.2 - Applicability and scope.  

Code of Federal Regulations, 2013 CFR

...recruitment efforts pursuant to DoDD 5410.18 (see http://www.dtic.mil/whs/directives/corres/pdf/541018p.pdf) and DoD Instruction (DoDI) 5410.19 (see http://www.dtic.mil/whs/directives/corres/pdf/541019p.pdf)...

2013-07-01

294

32 CFR 158.1 - Purpose.  

Code of Federal Regulations, 2013 CFR

...the guidance in DoD Directive 3020.49 (see http://www.dtic.mil/whs/ directives/corres/pdf/302049p.pdf ) and the authority in DOD Directive 5134.01 (see http://www.dtic.mil/whs/directives/corres/pdf/513401p.pdf...

2013-07-01

295

78 FR 42030 - Reservoirs at Headwaters of the Mississippi River; Use and Administration  

Federal Register 2010, 2011, 2012, 2013

...usace.army.mil and Chandra.S.Pathak@usace.army.mil. Include the docket...Engineers, Attn: CECW-CE (Chandra S. Pathak), 441 G Street NW., Washington, DC...at 202-761-0673; Mr. Chandra S. Pathak, Headquarters, U.S. Army Corps...

2013-07-15

296

Luminescent metal-organic framework films as highly sensitive and fast-response oxygen sensors.  

PubMed

Luminescent metal-organic framework films, CPM-5?Tb(3+) and MIL-100(In)?Tb(3+), have been constructed by postfunctionalization of two porous indium-organic frameworks with different structures, respectively. The MIL-100(In)?Tb(3+) film shows high oxygen sensitivity (KSV = 7.59) and short response/recovery time (6 s/53 s). PMID:24697214

Dou, Zhongshang; Yu, Jiancan; Cui, Yuanjing; Yang, Yu; Wang, Zhiyu; Yang, Deren; Qian, Guodong

2014-04-16

297

Differential regulation of soluble interleukin 1 release and membrane expression by pharmacologic agents.  

PubMed

Membrane IL-1 (mIL-1) expression was compared with release of soluble IL-1 (sIL-1) by C3H/HeNCrl mouse peritoneal macrophages. Selective antagonists of protein kinase C (PKC) (H-7) and calmodulin (W-7) in combination inhibited LPS-induced mIL-1 and sIL-1 production, suggesting a role for these activation pathways in IL-1 induction. Low levels of A23187, when combined with OAG (a direct activator of PKC), stimulated mIL-1 expression in the absence of sIL-1 release. Induction of mIL-1 by LPS was inhibited by PGE2 and dibutyryl cAMP, but higher concentrations were required to inhibit mIL-1 expression compared with sIL-1 release. LTB4 alone did not induce mIL-1 or sIL-1 production. LTB4 did enhance LPS-induced mIL-1 expression but not sIL-1 release. These results indicate that mIL-1 expression and sIL-1 release are differentially regulated. Membrane IL-1 is induced by lower levels of certain stimuli and is less effectively inhibited than is sIL-1 release. This differential regulation is further evidence to support the existance of membrane IL-1. PMID:2167003

Brandwein, S R

1990-06-01

298

7 CFR 340.8 - Container requirements for the movement of regulated articles.  

Code of Federal Regulations, 2011 CFR

...and subcellular elements, shall be packed in a sealed plastic bag of at least 5 mil thickness, inside a sturdy, sealed...Seeds. All seeds shall be transported in a sealed plastic bag of at least 5 mil thickness, inside a sealed...

2011-01-01

299

7 CFR 340.8 - Container requirements for the movement of regulated articles.  

Code of Federal Regulations, 2010 CFR

...and subcellular elements, shall be packed in a sealed plastic bag of at least 5 mil thickness, inside a sturdy, sealed...Seeds. All seeds shall be transported in a sealed plastic bag of at least 5 mil thickness, inside a sealed...

2010-01-01

300

Space Qualification Test of a-Silicon Solar Cell Modules.  

National Technical Information Service (NTIS)

The basic requirements of solar cell modules for space applications are generally described in MIL-S-83576 for the specific needs of the USAF. However, the specifications of solar cells intended for use on space terrestrial applications are not well defin...

Q. Kim R. A. Lawton S. J. Manion J. O. Okuno R. P. Ruiz D. T. Vu D. T. Vu S. A. Kayali F. R. Jeffrey

2004-01-01

301

Exploding Foil Initiator Qualifications.  

National Technical Information Service (NTIS)

The Electronic Safety and Arming Device technology has been pressed into use before many of the design specifications could be completed. MIL-STD-1316D the basic SA safety guide requires in-line detonators to be qualified in accordance with MIL-I-23659, y...

J. A. Lienau

1993-01-01

302

High density multilayer substrates using patterned microvia interposers  

Microsoft Academic Search

Printed wiring boards and IC packaging technologies are continuing to dovetail in the form of high density substrates with increasing complexity and finer dimensions. Double sided circuits with lines and spaces of less than 2 mils and vias down to 1-3 mils are being achieved in both rigid and flexible laminates. Despite these impressive geometries, lamination of several of these

Goran Matijasevic; Catherine Gallagher; Pradeep Gandhi

1998-01-01

303

Network Time Synchronization Servers at the US Naval Observatory.  

National Technical Information Service (NTIS)

Responding to an increased demand for reliable, accurate time on the Internet and Milnet, the U.S. Naval Observatory Time Service has established the network time servers, tick.usno.navy.mil and tock.usno.navy.mil. The system clocks of these HP9000/747i i...

R. E. Schmidt

1995-01-01

304

Network Time Synchronization Servers at the U.S. Naval Observatory.  

National Technical Information Service (NTIS)

Responding to an increased demand for reliable, accurate time on the Internet and Milnet, the U.S. Naval Observatory Time Service has established the network time servers, tick.usno.navy.mil and tock.usno.navy.mil. The system clocks of these HP9000/747i i...

R. E. Schmidt

1994-01-01

305

76 FR 10522 - Naval Surface Warfare Center, Upper Machodoc Creek and the Potomac River, Dahlgren, VA; Danger Zone  

Federal Register 2010, 2011, 2012, 2013

...e-mail at david.b.olson@usace.army.mil, or Mr. Robert...e-mail at robert.a.berg@usace.army.mil. SUPPLEMENTARY...danger zone does not have an effect on the public, does not result...previously known as the Naval Surface Weapons Center. (3)...

2011-02-25

306

Specification and Checking of Software Contracts for Conditional Information Flow  

Microsoft Academic Search

Information assurance applications built according to the MILS (Mul- tiple Independent Levels of Security) architecture often contain information flow policies that are conditional in the sense that data is allowed to flow between sys- tem components only when the system satisfies certain state predicates. However, existing specification and verification environments, such as SPARK Ada, used to develop MILS applications can

Torben Amtoft; John Hatcliff; Edwin Rodríguez; Robby; Jonathan Hoag; David Greve

2008-01-01

307

26 CFR 48.4081-1 - Taxable fuel; definitions.  

Code of Federal Regulations, 2010 CFR

...3699, or kerosene-type jet fuel covered by ASTM specification D 1655 or military specification MIL-DTL-5624T (Grade JP-5) or MIL-DTL-83133E (Grade JP-8). For availability of ASTM and military specifications, see paragraph...

2010-04-01

308

26 CFR 48.4082-6 - Kerosene; exemption for aviation-grade kerosene.  

Code of Federal Regulations, 2010 CFR

... means kerosene-type jet fuel covered by ASTM specification D 1655 or military specification MIL-DTL-5624T (Grade JP-5) or MIL-DTL-83133E (Grade JP-8). For availability of ASTM and military specifications, see §...

2009-04-01

309

26 CFR 48.4082-6 - Kerosene; exemption for aviation-grade kerosene.  

Code of Federal Regulations, 2010 CFR

... means kerosene-type jet fuel covered by ASTM specification D 1655 or military specification MIL-DTL-5624T (Grade JP-5) or MIL-DTL-83133E (Grade JP-8). For availability of ASTM and military specifications, see §...

2010-04-01

310

26 CFR 48.4081-1 - Taxable fuel; definitions.  

Code of Federal Regulations, 2010 CFR

...3699, or kerosene-type jet fuel covered by ASTM specification D 1655 or military specification MIL-DTL-5624T (Grade JP-5) or MIL-DTL-83133E (Grade JP-8). For availability of ASTM and military specifications, see paragraph...

2009-04-01

311

F-111 Depot Fuselage Fuel Tank Deseal/Reseal Procedures.  

National Technical Information Service (NTIS)

The original EC5106 sealant in F-111 aircraft fuel tanks was deteriorating, resulting in unacceptable leaks. To correct this problem, the tanks were to be desealed and resealed with MIL-S-83430 polysulfide sealant. However, laboratory tests indicated that...

P. Steinweg

1977-01-01

312

MISR Current Project Quality  

... Statements September 09, 2010 SUMMARY STATEMENT Intensive assessment of MISR product data quality is underway. Focused studies ... 2 Validated - selected parameters) L2AS Land Surface (a.k.a. AS_LAND, MIL2ASLS, MIL2ASLF) (Stage 1 Validated)   ...

2013-05-09

313

Optimum Filament Diameters.  

National Technical Information Service (NTIS)

A program to investigate the structural behavior of large diameter (5-mil) E-glass fiber composites under complex stress systems, primarily those under bidirectional compression is described. For design use, material properties of 5-mil, E-glass fiber com...

J. Jobaris B. Levenetz

1964-01-01

314

Production of bioactive soluble interleukin-15 in complex with interleukin-15 receptor alpha from a conditionally-replicating oncolytic HSV-1.  

PubMed

Oncolytic type-1 herpes simplex viruses (oHSVs) lacking the ?134.5 neurovirulence gene are being evaluated for treatment of a variety of malignancies. oHSVs replicate within and directly kill permissive cancer cells. To augment their anti-tumor activity, oHSVs have been engineered to express immunostimulatory molecules, including cytokines, to elicit tumor-specific immune responses. Interleukin-15 (IL-15) holds potential as an immunotherapeutic cytokine because it has been demonstrated to promote both natural killer (NK) cell-mediated and CD8(+) T cell-mediated cytotoxicity against cancer cells. The purpose of these studies was to engineer an oHSV producing bioactive IL-15. Two oHSVs were constructed encoding murine (m)IL-15 alone (J100) or with the mIL-15 receptor ? (mIL-15R?, J100D) to determine whether co-expression of these proteins is required for production of bioactive mIL-15 from oHSV. The following were demonstrated: i) both oHSVs retain replication competence and cytotoxicity in permissive tumor cell lines. ii) Enhanced production of mIL-15 was detected in cell lysates of neuro-2a cells following J100D infection as compared to J100 infection, suggesting that mIL-15R? improved mIL-15 production. iii) Soluble mIL-15 in complex with mIL-15R? was detected in supernates from J100D-infected, but not J100-infected, neuro-2a, GL261, and CT-2A cells. These cell lines vary in permissiveness to oHSV replication and cytotoxicity, demonstrating soluble mIL-15/IL-15R? complex production from J100D was independent of direct oHSV effects. iv) The soluble mIL-15/IL-15R? complex produced by J100D was bioactive, stimulating NK cells to proliferate and reduce the viability of syngeneic GL261 and CT-2A cells. v) J100 and J100D were aneurovirulent inasmuch as no neuropathologic effects were documented following direct inoculation into brains of CBA/J mice at up to 1x10(7) plaque forming units. The production of mIL-15/mIL-15R? from multiple tumor lines, as well as the lack of neurovirulence, renders J100D suitable for investigating the combined effects of oHSV and mIL-15/IL-15R? in various cancer models. PMID:24312353

Gaston, David C; Odom, Carl I; Li, Li; Markert, James M; Roth, Justin C; Cassady, Kevin A; Whitley, Richard J; Parker, Jacqueline N

2013-01-01

315

A novel role of IL-17-producing lymphocytes in mediating lytic bone disease in multiple myeloma  

PubMed Central

Osteoclast (OC)–mediated lytic bone disease remains a cause of major morbidity in multiple myeloma. Here we demonstrate the critical role of interleukin-17–producing marrow infiltrating lymphocytes (MILs) in OC activation and development of bone lesions in myeloma patients. Unlike MILs from normal bone marrow, myeloma MILs possess few regulatory T cells (Tregs) and demonstrate an interleukin-17 phenotype that enhances OC activation. In univariate analyses of factors mediating bone destruction, levels of cytokines that selectively induce and maintain the Th17 phenotype tightly correlated with the extent of bone disease in myeloma. In contrast, MILs activated under conditions that skew toward a Th1 phenotype significantly reduced formation of mature OC. These findings demonstrate that interleukin-17 T cells are critical to the genesis of myeloma bone disease and that immunologic manipulations shifting MILs from a Th17 to a Th1 phenotype may profoundly diminish lytic bone lesions in multiple myeloma.

Noonan, Kimberly; Marchionni, Luigi; Anderson, Judy; Pardoll, Drew; Roodman, G. David

2010-01-01

316

Antineoplastic activity and tolerability of a novel heterocyclic alkylphospholipid, D-20133.  

PubMed

Octadecyl-[2-(N-methylpiperidinio)ethyl]-phosphate (OMPEP, D-20133), a heterocyclic analogue of hexadecylphosphocholine (MIL), has been synthesized in an attempt to increase the therapeutic range of the parent compound. The antineoplastic activity of the novel alkylphospholipid was compared with that of MIL in dimethylbenz(a)anthracene-induced mammary carcinoma of the rat. Using tumors of different sizes and repeated daily doses as well as high single doses, we achieved marked remissions with either compound. However, the therapeutic range of OMPEP was broader than that of the parent drug. Furthermore, the emetic potential of OMPEP tested on ferrets was distinctly less pronounced than that of MIL. In vitro the new alkylphospholipid proved to be more active than MIL in all cell lines tested, and its differentiation-inducing capacity turned out to be superior to that of MIL. No hematological toxicity was observed at various OMPEP doses during a 3-week treatment period. PMID:8258191

Stekar, J; Hilgard, P; Voegeli, R; Maurer, H R; Engel, J; Kutscher, B; Nössner, G; Schumacher, W

1993-01-01

317

Structurally stable, thin silicon solar cells  

NASA Technical Reports Server (NTRS)

A fabrication process for structurally stable thin solar cell wafers that produce good power output after irradiation is described. The fabrication process is as follows. A 6 mil, circular wafer is oxidized on both sides. One side is then patterned with a rectangular array of holes in the oxide that are nominally 75 mils square and separated by 2 mil spacings. Wells are then etched into the silicon with KOH to a depth of 4 mils, leaving a 2 mil, unetched thickness. Two areas on the surface are left unetched to provide pads for bonding or testing. All oxide is then removed and the rest of the processing is normal; the unetched face is used as the illuminated face. When all other processing is complete, a 2 X 2 cm cell is sawed from the starting wafer leaving a border that is approximately 10 mils wide. The effective thickness, determined by weighing an unmetallized sample, of such a cell is about 2.4 mil.

Arndt, R. A.; Meulenberg, A.

1984-01-01

318

Incorporating Polyoxometalates into a Porous MOF Greatly Improves Its Selective Adsorption of Cationic Dyes.  

PubMed

Various polyoxometalates (POMs) were successfully immobilized to the mesoporous coordination polymer MIL-101 resulting in a series of POM-MOF composite materials POM@MIL-101 (POM=K4 PW11 VO40 , H3 PW12 O40 , K4 SiW12 O40 ). These materials were synthesized by a simple one-pot reaction of Keggin POMs, tetramethylammonium hydroxide (TMAH), terephthalic acid (H2 bdc), and Cr(3+) ions. XRD, FTIR, thermogravimetric analyses (TG), inductively coupled plasma (ICP) spectrometry, and energy-dispersive X-ray spectroscopy (EDX) collectively confirmed the successful combination of POMs and the porous framework. Further, these composites POM@MIL-101 with different loading of POMs were achieved by variation of the POM dosage. Notably, the uptake capacity of MIL-101 towards organic pollutants in aqueous solution was significantly improved by immobilization of hydrophilic POMs into cages of MIL-101. An uptake capacity of 371?mg?g(-1) , comparable to that of the graphene oxide sponges, and much higher than that of the commercial activated carbon, was achieved at room temperature in 5?min when dipping 20?mg PW11 V@MIL-101 in the methylene blue (MB) solution (100?mL of 100?mg?L(-1) MB solution). Further study revealed that the POM@MIL-101 composite materials not only exhibited a fast adsorption rate towards dye molecules, but also possessed of selective adsorption ability of the cationic dyes in wastewater. For example, the adsorption efficiency of PW11 V@MIL-101 (10?mg) towards MB (100?mL of 10?mg?L(-1) ) could reach 98?% in the initial 5?min, and it could capture MB dye molecules from the binary mixture of the MB and MO with similar size. Also, the POM@MIL-101 materials could be readily recycled and reused, and no POM leached in the dye adsorption process. PMID:24737342

Yan, Ai-Xue; Yao, Shuang; Li, Yang-Guang; Zhang, Zhi-Ming; Lu, Ying; Chen, Wei-Lin; Wang, En-Bo

2014-06-01

319

High pressure pulsed capillary viscometry  

NASA Technical Reports Server (NTRS)

An analytical and test program was conducted in order to establish the feasibility of a multichamber pulsed-capillary viscometer. The initial design incorporated a piston, ram, and seals which produced measured pulses up to 30,000 psi in the closed chamber system. Pressure pulses from one to ten milliseconds were investigated in a system volume of 1 cuin. Four test fluids: a MIL-L-7808, a 5P4E polyphenyl ether, a MIL-L-23699A, and a synthetic hydrocarbon were examined in the test pressure assembly. The pressure-viscosity coefficient and viscosity delay time were determined for the MIL-L-7808 lubricant tested.

Smith, R. L.; Walowitt, J. A.; Pan, C. H. T.

1972-01-01

320

Experimental Evidence Supported by Simulations of a Very High H{sub 2} Diffusion in Metal Organic Framework Materials  

SciTech Connect

Quasielastic neutron scattering measurements are combined with molecular dynamics simulations to extract the self-diffusion coefficient of hydrogen in the metal organic frameworks MIL-47(V) and MIL-53(Cr). We find that the diffusivity of hydrogen at low loading is about 2 orders of magnitude higher than in zeolites. Such a high mobility has never been experimentally observed before in any nanoporous materials, although it was predicted in carbon nanotubes. Either 1D or 3D diffusion mechanisms are elucidated depending on the chemical features of the MIL framework.

Salles, F.; Maurin, G. [Institut Charles Gerhardt Montpellier, UMR CNRS 5253, UM2, ENSCM, Place E. Bataillon, 34095 Montpellier cedex 05 France (France); Jobic, H. [Institut de Recherches sur la Catalyse et l'Environnement de LYON, CNRS, Universite de Lyon, 2. Av. A. Einstein, 69626 Villeurbanne (France); Koza, M. M. [Institut Laue Langevin, BP 156, 38042 Grenoble (France); Llewellyn, P. L. [Laboratoire Chimie Provence, Universites d'Aix-Marseille I, II et III - CNRS, UMR 6264, Centre de Saint Jerome, 13397 Marseille (France); Devic, T.; Serre, C.; Ferey, G. [Institut Lavoisier, UMR CNRS 8180, Universite de Versailles Saint-Quentin-en-Yvelines, 78035 Versailles Cedex (France)

2008-06-20

321

Identification of MicroRNA-Like RNAs in Mycelial and Yeast Phases of the Thermal Dimorphic Fungus Penicillium marneffei  

PubMed Central

Background Penicillium marneffei is the most important thermal dimorphic fungus causing systemic mycosis in China and Southeast Asia. While miRNAs are increasingly recognized for their roles in post-transcriptional regulation of gene expression in animals and plants, miRNAs in fungi were less well studied and their potential roles in fungal dimorphism were largely unknown. Based on P. marneffei genome sequence, we hypothesize that miRNA-like RNAs (milRNAs) may be expressed in the dimorphic fungus. Methodology/Principal Findings We attempted to identify milRNAs in P. marneffei in both mycelial and yeast phase using high-throughput sequencing technology. Small RNAs were more abundantly expressed in mycelial than yeast phase. Sequence analysis revealed 24 potential milRNA candidates, including 17 candidates in mycelial and seven in yeast phase. Two genes, dcl-1 and dcl-2, encoding putative Dicer-like proteins and the gene, qde-2, encoding Argonaute-like protein, were identified in P. marneffei. Phylogenetic analysis showed that dcl-2 of P. marneffei was more closely related to the homologues in other thermal dimorphic pathogenic fungi than to Penicillium chrysogenum and Aspergillus spp., suggesting the co-evolution of dcl-2 among the thermal dimorphic fungi. Moreover, dcl-2 demonstrated higher mRNA expression levels in mycelial than yeast phase by 7 folds (P<0.001). Northern blot analysis confirmed the expression of two milRNAs, PM-milR-M1 and PM-milR-M2, only in mycelial phase. Using dcl-1KO, dcl-2KO, dclDKO and qde-2KO deletion mutants, we showed that the biogenesis of both milRNAs were dependent on dcl-2 but not dcl-1 or qde-2. The mRNA expression levels of three predicted targets of PM-milR-M1 were upregulated in knockdown strain PM-milR-M1KD, supporting regulatory function of milRNAs. Conclusions/Significance Our findings provided the first evidence for differential expression of milRNAs in different growth phases of thermal dimorphic fungi and shed light on the evolution of fungal proteins involved in milRNA biogenesis and possible role of post-transcriptional control in governing thermal dimorphism.

Wong, Annette Y. P.; Yeung, Julian M. Y.; Bao, Jessie; Zhang, Na; Lok, Si; Woo, Patrick C. Y.; Yuen, Kwok-Yung

2013-01-01

322

Highly Catalytically Active Palladium Nanoparticles Incorporated Inside Metal-Organic Framework Pores by Double Solvents Method  

NASA Astrophysics Data System (ADS)

Highly monodispersed palladium (Pd) nanoparticles have been successfully incorporated inside the mesopores of a metal-organic framework (MOF), MIL-101, without deposition of Pd nanoparticles on the external surfaces of framework by using the "double solvents" method, in which cyclohexane is used as a hydrophobic solvent to disperse the mesoporous MOF and an aqueous solution of Pd precursor is used as a hydrophilic solvent to fill the mesopores. The resulting Pd@MIL-101 composite is highly catalytically active for the reduction of 4-nitrophenol (4-NPh) by sodium borohydride (NaBH4). The observed excellent catalytic performances are attributed to the small Pd nanoparticles within the pores of MIL-101.

Yadav, Mahendra; Aijaz, Arshad; Xu, Qiang

2012-12-01

323

32 CFR 185.1 - Purpose.  

Code of Federal Regulations, 2013 CFR

...civilian law enforcement. 1 Available for downloading at http://www.dtic.mil/whs/directives/corres/pdf/552505p.pdf (c) Sets forth policy guidance for the execution and oversight of DSCA when requested by civil...

2013-07-01

324

32 CFR 222.3 - Definitions.  

Code of Federal Regulations, 2013 CFR

...FGI). Defined in DoD 5200.1-R (available at http://www.dtic.mil/whs/directives/corres/pdf/520001r.pdf ). Formal Control System. A system designed to ensure DoD Component accountability and compliance....

2013-07-01

325

48 CFR 3016.170 - Contracts with Lead System Integrators.  

Code of Federal Regulations, 2013 CFR

...Reference Pricing Guides [http://www.acq.osd.mil/dpap/cpf/docs/contract_pricing_finance_guide/vol4_ch1.pdf ] can be consulted to determine the appropriate contract type and fee structure for use in varied contracts with lead...

2013-10-01

326

Methods for Reducing Friction between Concrete Slabs and Cement-Treated Subbases.  

National Technical Information Service (NTIS)

The objective of the research was to evaluate specific methods of reducing friction between concrete slabs and different surface textures of cement-treated subbase. Three friction reducing treatments: sand, sand covered with 4 mil polyethylene, and a doub...

1971-01-01

327

77 FR 12816 - Procurement List Proposed Addition and Deletions  

Federal Register 2010, 2011, 2012, 2013

...Activity: Dept of Defense/Off of Secretary of Def (EXC MIL DEPTS), Washington, DC. Shaft, Propeller NSN: 2520-01-171-4844. NPA: VIP Services, Inc., Elkhorn, WI. Contracting Activity: Defense Logistics Agency Land and Maritime,...

2012-03-02

328

Reliability Prediction for Spacecraft.  

National Technical Information Service (NTIS)

This study provides the basis for improving the utility of Mil-Hdbk-217 for reliability prediction of spacecraft components and systems. The reliability performance histories of 300 satellite vehicles, which were launched between the early 1960's through ...

H. Hecht M. Hecht

1985-01-01

329

Mechanical Behavior of Beryllium Wire Reinforced Plastic Composites. Part I. Static Mechanical Properties.  

National Technical Information Service (NTIS)

Unidirectional and multidirectional composites of five mil diameter beryllium wire combined with an epoxy resin were fabricated and their mechanical behavior in tension, compression, flexure, and shear loading modes determined. The composites possessed go...

H. S. Schwartz R. T. Schwartz

1967-01-01

330

75 FR 52733 - Record of Decision (ROD) for Fort Bliss Army Growth and Force Structure Realignment  

Federal Register 2010, 2011, 2012, 2013

...bliss.army.mil) or at the following locations: El Paso, TX: Richard Burges Regional Library, 9600 Dyer; Irving Schwartz Branch Library, 1865 Dean Martin; the Clardy Fox Branch Library, 5515 Robert Alva; Doris van Doren Regional Branch...

2010-08-27

331

76 FR 2291 - TRICARE Reimbursement Revisions  

Federal Register 2010, 2011, 2012, 2013

...of care; reimbursement of physician assistants and assistant-at-surgery...www.tricare.mil. II. Physician Assistants and Assistant-at-Surgery...The allowable charge for physician assistant services other than...

2011-01-13

332

77 FR 38173 - TRICARE Reimbursement Revisions  

Federal Register 2010, 2011, 2012, 2013

...of care; reimbursement of physician assistants and assistant-at-surgery...www.tricare.mil. II. Physician Assistants and Assistant-at-Surgery...services when delivered by a physician assistant (PA). They stated...

2012-06-27

333

32 CFR 159.5 - Responsibilities.  

Code of Federal Regulations, 2013 CFR

...classified secret. CJCSI 3121.01B is available via Secure Internet Protocol Router Network at http://js.smil.mil...available through a single location (to include an Internet Web site, consistent with security considerations...

2013-07-01

334

48 CFR 252.232-7003 - Electronic submission of payment requests and receiving reports.  

Code of Federal Regulations, 2013 CFR

...electronic formats that WAWF accepts: Electronic Data Interchange, Secure File Transfer Protocol, or World Wide Web input. Information regarding WAWF is available on the Internet at https://wawf.eb.mil/ . (c) The Contractor may...

2013-10-01

335

32 CFR 159.5 - Responsibilities.  

Code of Federal Regulations, 2010 CFR

...classified secret. CJCSI 3121.01B is available via Secure Internet Protocol Router Network at http://js.smil.mil...available through a single location (to include an Internet Web site, consistent with security considerations...

2010-07-01

336

33 CFR 183.516 - Cellular plastic used to encase fuel tanks.  

Code of Federal Regulations, 2013 CFR

...under Military Specification MIL P-21929B. (b) Non-polyurethane cellular plastic used to encase metallic fuel tanks must...Compressive Strength of Rigid Cellular Plasticsâ. (c) Polyurethane cellular plastic used to encase metallic fuel tanks must...

2013-07-01

337

Wood Fuel for Power Generation at Wendel, California. Volume 5. Harvest, Collection, and Transportation.  

National Technical Information Service (NTIS)

Methods focal to the 100-mile Susanville procurement area for: (a) harvesting forest fuels from lodge-pole pine, old growth, cull log inventories, second growth ponderosa pine and white fir, pinyon/juniper, and manzanita; (b) systematically collecting mil...

1981-01-01

338

75 FR 68330 - Closed Meeting of the Threat Reduction Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...FURTHER INFORMATION CONTACT: Contact Mr. Eric Wright, Defense Threat Reduction Agency...Belvoir, VA 22060-6201. E-mail: eric.wright@dtra.mil. Phone: (703...Federal Officer or Point of Contact: Mr. Eric Wright, Defense Threat Reduction...

2010-11-05

339

Stress, Health and Performance in Military Women. Prospects, Pitfalls Protean Patterns from Current Research.  

National Technical Information Service (NTIS)

This volume is the result of collaboration and consultation to disasters and traumatic events affecting military women and men. These empirical studies examine the psychological, behavioral, cognitive and physiological responses to traumatic events in mil...

C. S. Fullerton R. J. Ursano

1996-01-01

340

41 CFR 301-11.6 - Where do I find maximum per diem and actual expense rates?  

Code of Federal Regulations, 2010 CFR

...Committee (PDTATAC)) Per Diem Bulletins issued by PDTATAC and published periodically in the Federal Register or Internet at https://secureapp2.hqda.pentagon.mil/perdiem/perdiemrates.html . (Rates also appear in section 925, a per...

2010-07-01

341

48 CFR 237.172 - Service Contracts Surveillance.  

Code of Federal Regulations, 2010 CFR

...by the contract. (See FAR Subpart 46.4.) Retain quality assurance surveillance plans in the official contract file. See https://sam.dau.mil, Step Four—Requirements Definition, for examples of quality assurance surveillance plans....

2010-10-01

342

48 CFR 1852.234-1 - Notice of Earned Value Management System.  

Code of Federal Regulations, 2010 CFR

...award, and a compliance review as soon as practicable. The Department of Defense Earned Value Management Implementation Guide (https://acc.dau.mil/CommunityBrowser.aspx?id=19557 ) outlines the requirements for conducting a progress...

2010-10-01

343

48 CFR 232.7003 - Procedures.  

Code of Federal Regulations, 2010 CFR

...The accepted electronic form for submission of payment requests and receiving reports is Wide Area WorkFlow (see Web site—https://wawf.eb.mil/ ). (b) If the payment office and the contract administration office concur, the...

2010-10-01

344

33 CFR 155.4052 - Drills and exercises.  

Code of Federal Regulations, 2010 CFR

...Guidelines will satisfy the vessel response plan exercise requirements. These guidelines are available on the Internet at https://Homeport.uscg.mil/exercises . Once on that Web site, select the link for “Preparedness for Response...

2010-07-01

345

48 CFR 252.232-7003 - Electronic submission of payment requests and receiving reports.  

Code of Federal Regulations, 2010 CFR

...Interchange, Secure File Transfer Protocol, or World Wide Web input. Information regarding WAWF is available on the Internet at https://wawf.eb.mil/ . (c) The Contractor may submit a payment request and receiving report using other than WAWF...

2010-10-01

346

77 FR 14471 - Safety Zone; Festival of States 2012 Night Parade Fireworks Display, Tampa Bay, St. Petersburg, FL  

Federal Register 2010, 2011, 2012, 2013

...Chad R. Griffiths, Sector St. Petersburg Prevention Department, Coast Guard; telephone (813) 228-2191, email D07-SMB-Tampa-WWM@uscg.mil. If you have questions on viewing the docket, call Renee V. Wright, Program Manager, Docket...

2012-03-12

347

32 CFR 159.6 - Procedures.  

Code of Federal Regulations, 2010 CFR

...directives/corres/pdf/520008r.pdf. 10 Available athttp...mil/whs/directives/corres/pdf/110022p.pdf. (D) Documentation of...database) of armored vehicles, helicopters, and other vehicles operated...

2010-07-01

348

A Note on Angle Construction  

ERIC Educational Resources Information Center

The author investigates the construction of angles (using Euclidean tools) through a numerical approach. He calls attention to the surprising impossibility of constructing the conventional units of angle measure--the degree, minute, second, radian, and mil. (MN)

Francis, Richard L.

1978-01-01

349

Performance Oriented Packaging Report for Cutter, Cartridge, Actuated, Reefing Line, M21.  

National Technical Information Service (NTIS)

This POP report is for the Cutter, Cartridge, Actuated, Reefing Line, M21 which is packaged 80 cutters/Mil-B-2427 wood box. This report describes the results of testing conducted.... Performance oriented packaging, POP, Cutter, Cartridge, Actuated, Reefin...

F. Sniezek

1992-01-01

350

Coxsackievirus Expression of the Murine Secretory Protein Interleukin-4 Induces Increased Synthesis of Immunoglobulin G1 in Mice  

PubMed Central

We cloned the sequence encoding murine interleukin-4 (mIL-4), including the secretory signal, into the genome of CVB3/0, an artificially attenuated strain of coxsackievirus B3, at the junction of the capsid protein 1D and the viral protease 2Apro. Two strains of chimeric CVB3 were constructed using, in one case, identical sequences to encode 2Apro cleavage sites (CVB3/0-mIL4/47) on either side of the inserted coding sequence and, in the other case, nonidentical sequences that varied at the nucleotide level without changing the amino acid sequences (CVB3-PL2-mIL4/46). Transfection of HeLa cells yielded progeny viruses that replicated with rates similar to that of the parental CVB3/0 strain, although yields of mIL-4-expressing strains were approximately 10-fold lower than those of the parental virus. Western blot analysis of viral proteins isolated from HeLa cells inoculated with either strain of chimeric virus demonstrated that the chimeric viruses synthesized capsid protein 1D at approximately twofold-higher levels than the parental virus. mIL-4 protein was detected by enzyme-linked immunosorbent assay (ELISA) in HeLa cells inoculated with either strain of chimeric virus. Lysates of HeLa cells inoculated with either chimeric virus induced the proliferation of the mIL-4-requiring murine MC-9 cell line, demonstrating biological activity of the CVB3-expressed mIL-4. Reverse transcription (RT)-PCR analysis of viral RNA derived from sequential passaging of CVB3/0-mIL4/47 in HeLa cells demonstrated deletion of the mIL-4 coding sequence occurring by the fourth passage, while similar analysis of CVB3-PL2-mIL4/46 RNA demonstrated detection of the mIL-4 coding sequence in the virus population through 10 generations in HeLa cells. mIL-4 protein levels determined by ELISA were consistent with the stability and loss data determined by RT-PCR analysis of the passaged viral genomes. Studies of insert stability of CVB3-PL2-mIL4/46 during replication in mice showed the presence of the viral mIL-4 insert in pancreas, heart, and liver at 14 days postinfection. Comparison of the murine antibody responses to CVB3-PL2-mIL4/46 and the parental CVB3/0 strain demonstrated an increased level of CVB3-binding serum immunoglobulin G1 in mice inoculated with CVB3-PL2-mIL4/46.

Chapman, Nora M.; Kim, Kyung-Soo; Tracy, Steven; Jackson, John; Hofling, Katja; Leser, J. Smith; Malone, James; Kolbeck, Peter

2000-01-01

351

Procedures for Conducting a Field Evaluation of Night Vision Goggle-Compatible Cockpit Lighting.  

National Technical Information Service (NTIS)

The requirements to assess the compatibility of aircraft cockpit lighting with night vision goggles (NVGs) are defined in MIL-L-85762A, Lighting, Aircraft, Interior, Night Vision Imaging System (NVIS) Compatible. However, the procedures specified to evalu...

J. D. Reising J. C. Antonio B. Fields

1996-01-01

352

40 CFR 86.010-18 - On-board Diagnostics for engines used in applications greater than 14,000 pounds GVWR.  

Code of Federal Regulations, 2010 CFR

...code (DTC) in the onboard computer's memory. A malfunction indicator light (MIL...not completeâ whenever diagnostic memory has been cleared or erased by a means other...vehicle speed information) since DTC memory last erased, and number of...

2010-07-01

353

40 CFR 86.010-18 - On-board Diagnostics for engines used in applications greater than 14,000 pounds GVWR.  

Code of Federal Regulations, 2010 CFR

...code (DTC) in the onboard computer's memory. A malfunction indicator light (MIL...not completeâ whenever diagnostic memory has been cleared or erased by a means other...vehicle speed information) since DTC memory last erased, and number of...

2009-07-01

354

Diagnosis of Sub-Clinical Varicocele by Means of Infrared Functional Imaging.  

National Technical Information Service (NTIS)

Infrared Functional Imaging (IRFI) was used to detect sub-clinical varicocele. The evaluation of varicocele related hyperthermia and the different thermal properties of healthy and unhealthy testicles were used to detect the presence of the disease. A mil...

A. Merla A. Ledda L. Di Donato G. L. Romani

2001-01-01

355

Experimental Mod III Firefighters' Aluminized Crash-Rescue, Fire-Proximity Hood.  

National Technical Information Service (NTIS)

The Navy Clothing and Textile Research Facility (NCTRF) has developed the experimental Mod III Firefighters' Aluminized Crash-Rescue Fire-Proximity Hood, which improves upon the standard firefighters' aluminized hood (MIL-H-29144). Reports from the firefi...

H. P. Winer

1984-01-01

356

The Experimental Mod II Firefighters' Aluminized Crash-Rescue Fire-Proximity Hood: An Interim Report of a Limited Service Test.  

National Technical Information Service (NTIS)

The Navy Clothing and Textile Research Facility (NCTRF) has developed the experimental Mod II Firefighters' Aluminized Crash-Rescue Fire-Proximity Hood, which improves upon the standard firefighters' aluminized hood (MIL-H-29144). Reports from the firefig...

H. P. Winer

1982-01-01

357

Iron isotope biosignatures  

NASA Technical Reports Server (NTRS)

The (56)Fe/(54)Fe of Fe-bearing phases precipitated in sedimentary environments varies by 2.5 per mil (delta(56)Fe values of +0.9 to -1. 6 per mil). In contrast, the (56)Fe/(54)Fe of Fe-bearing phases in igneous rocks from Earth and the moon does not vary measurably (delta(56)Fe = 0.0 +/- 0.3 per mil). Experiments with dissimilatory Fe-reducing bacteria of the genus Shewanella algae grown on a ferrihydrite substrate indicate that the delta(56)Fe of ferrous Fe in solution is isotopically lighter than the ferrihydrite substrate by 1.3 per mil. Therefore, the range in delta(56)Fe values of sedimentary rocks may reflect biogenic fractionation, and the isotopic composition of Fe may be used to trace the distribution of microorganisms in modern and ancient Earth.

Beard, B. L.; Johnson, C. M.; Cox, L.; Sun, H.; Nealson, K. H.; Aguilar, C.

1999-01-01

358

Postpartum Maternal Weight Changes: Implications for Military Women.  

National Technical Information Service (NTIS)

Maintaining physical readiness to meet demands of combat conditions is of utmost importance for active duty military personnel. As growing numbers of women of childbearing age enter active duty military service, the numbers of pregnancies among female mil...

B. Abrams

1997-01-01

359

Postpartum Maternal Weight Changes: Implications for Military Women.  

National Technical Information Service (NTIS)

Maintaining physical readiness to meet demands of combat conditions is of utmost importance for active duty military personnel. As growing numbers of women of childbearing age enter active duty military service, the numbers of pregnancies among female mil...

B. Abrams

1998-01-01

360

Reliability Test Report. Modular Cryogenic Generator.  

National Technical Information Service (NTIS)

Reliability Testing of the LOX-30 Liquid Oxygen Plant was evaluated in accordance with MIL-STD-781. Reliability Tests were divided into Environmental Requirements, Reliability Growth and Reliability Demonstration Tests. Accept/reject criteria for the demo...

R. Ferret

1978-01-01

361

Unusual Extremes and Diurnal Cycles of Desert Heat Loads.  

National Technical Information Service (NTIS)

Diurnal cycles of high temperature during which equipment must operate, and long-term temperature extremes and cycles which equipment must withstand without irreversible damage, are provided for the revision of MIL-STD-210A, 'Climatic Extremes for Militar...

I. I. Gringorten N. Sissenwine

1970-01-01

362

32 CFR 233.6 - Procedures.  

Code of Federal Regulations, 2013 CFR

...including location, address, hours of operation, phone number and email address, published on the Service voting assistance Web site...registration drives. (20) Establish and maintain a standard email address of the form Vote@(unit).(Service).mil,...

2013-07-01

363

Lithium Ion Aqueous Cells.  

National Technical Information Service (NTIS)

Lithium ion aqueous cells were investigated using lithium intercalating compounds as anodes and cathodes. The aqueous electrolyte consisted of 4 to 5 molar solutions of either lithium perchlorate or lithium nitrate which contained lithium hydroxide in mil...

E. J. Plichta W. K. Behl

1995-01-01

364

46 CFR 160.062-1 - Applicable specifications, and referenced material.  

Code of Federal Regulations, 2013 CFR

...chapter): (1) Military Specifications and Standards: MIL-R-15041C...Metals, test methods. (b) Technical references. For guidance purposes...Copies on file. A copy of the specifications and standards listed in...

2013-10-01

365

Investigation of Jet Impingement Cooling Using High Prandtl Number Fluids and Ammonia for Military Applications.  

National Technical Information Service (NTIS)

The objective of this project was to perform a comprehensive numerical study for the prediction of conjugate heat transfer during jet impingement cooling. Calculations were done primarily for two working fluids: MIL-7808 and ammonia. A number of substrate...

M. M. Rahman

2004-01-01

366

Performance of a hybrid cylindrical roller bearing  

NASA Astrophysics Data System (ADS)

A 206-size hybrid (ceramic/steel) cylindrical roller bearing was tested in MIL-L-23699 C oil at several speeds and loads. Heat-generation data was collected and subsequently correlated with bearing-analysis software. Bearing-cage slip data was also collected at various oil-flow rates, oil temperatures, and with both MIL-L-7808 J and MIL-L-23699 C oils. The hybrid bearing was tested in MIL-L-23699 C oil for for 25 hours at 2220 N radial load and 1.08 MDN shaft speed. The hybrid bearing technology demonstrated in the report is applicable to the Integrated High Performance Turbine Engine Technology Initiative.

Schrader, Stephen M.

1992-08-01

367

Performance of a hybrid cylindrical roller bearing  

SciTech Connect

A 206-size hybrid (ceramic/steel) cylindrical roller bearing was tested in MIL-L-23699 C oil at several speeds and loads. Heat-generation data was collected and subsequently correlated with bearing-analysis software. Bearing-cage slip data was also collected at various oil-flow rates, oil temperatures, and with both MIL-L-7808 J and MIL-L-23699 C oils. The hybrid bearing was tested in MIL-L-23699 C oil for for 25 hours at 2220 N radial load and 1.08 MDN shaft speed. The hybrid bearing technology demonstrated in the report is applicable to the Integrated High Performance Turbine Engine Technology Initiative. 15 refs.

Schrader, S.M. (General Motors Corp., Allison Gas Turbine Div., Indianapolis, IN (United States))

1992-08-01

368

Evaluation of Synthetic Waxes for Desensitizing Explosives.  

National Technical Information Service (NTIS)

A shortage of Grade A wax, MIL-W-20553B, for Navy HBX explosives resulted in several waxes being proposed as replacements. Thirteen samples, received for preliminary evaluation, were screened on the basis of differential scanning calorimetry results, exud...

W. C. Hogge E. R. Cousins

1975-01-01

369

Performance Oriented Packaging Report for Primers, Electric M83, M125 and M128.  

National Technical Information Service (NTIS)

This performance oriented packaging report is for M83, M125 and M128 electric primers which is packaged 45 electric primers per MIL-B-2427 wood box. This report describes the results of testing for these items.

B. Ingold

1994-01-01

370

76 FR 21809 - Defense Federal Acquisition Regulation Supplement; Technical Amendments  

Federal Register 2010, 2011, 2012, 2013

...the Codification Bureau in the foreign registrant's country. Additional information on obtaining NCAGE codes is available at http://www.dlis.dla.mil/Forms/Form_AC135.asp. (2) * * * (i) * * * (A) The monthly H-series CD-ROM...

2011-04-19

371

75 FR 64710 - Availability of the Fiscal Year 2009 Department of Defense Services Contracts Inventory  

Federal Register 2010, 2011, 2012, 2013

...suggestions concerning this inventory to Victoria Revel, Procurement Analyst, (AT&L...20301-3060. FOR FURTHER INFORMATION CONTACT: Victoria Revel at (703) 695-8567 or e- mail victoria.revel@osd.mil. Dated: October...

2010-10-20

372

33 CFR 72.05-10 - Free distribution.  

Code of Federal Regulations, 2010 CFR

...access Coast Guard Light data through the following National Geospatial-Intelligence Agency's Web site: (http://pollux.nss.nima.mil/pubs/USCGLL/pubs_j_uscgll_list.html ). (R.S. 501, as amended, sec. 5, 38 Stat....

2009-07-01

373

33 CFR 72.05-10 - Free distribution.  

Code of Federal Regulations, 2010 CFR

...access Coast Guard Light data through the following National Geospatial-Intelligence Agency's Web site: (http://pollux.nss.nima.mil/pubs/USCGLL/pubs_j_uscgll_list.html ). (R.S. 501, as amended, sec. 5, 38 Stat....

2010-07-01

374

75 FR 32162 - Federal Advisory Committee; Defense Health Board (DHB) Meeting  

Federal Register 2010, 2011, 2012, 2013

...Maryland 20814. FOR FURTHER INFORMATION CONTACT: Commander Edmond F. Feeks, Executive Secretary, Defense Health Board, Five...703) 681-8448, ext. 1228, Fax: (703) 681-3317, edmond.feeks@tma.osd.mil. SUPPLEMENTARY INFORMATION:...

2010-06-07

375

48 CFR 19.812 - Contract administration.  

Code of Federal Regulations, 2013 CFR

...Directory of Contract Administration Services Components (available via the Internet athttps://pubapp.dcma.mil/CASD/main.jspâ . (b) The agency shall distribute copies of the contract(s) in accordance with part 4. All contracts and...

2013-10-01

376

32 CFR 64.3 - Definitions.  

Code of Federal Regulations, 2013 CFR

...designating key positions as outlined in Department of Defense Directive 1200.7. 1 1 Copies may be obtained from http://www.dtic.mil/whs/directives. (c) Military retiree categories â(1) Category I. Non-disability military retirees...

2013-07-01

377

32 CFR 14.3 - Policies and procedures.  

Code of Federal Regulations, 2013 CFR

...process until such time as the Civilian Defense Counsel's services are likely to be sought. 1 Available at http://www.dtic.mil/whs/directives. (v) Civilian Defense Counsel shall have signed a written agreement to comply with all...

2013-07-01

378

32 CFR 37.895 - How is the final performance report to be sent to the Defense Technical Information Center?  

Code of Federal Regulations, 2010 CFR

...if available, either: 8 Additional information on electronic submission to the DTIC can be found online, currently at http://www.dtic.mil/dtic/submitting/elec_subm.html. (1) Directly to the DTIC; or (2) To...

2010-07-01

379

32 CFR 37.895 - How is the final performance report to be sent to the Defense Technical Information Center?  

Code of Federal Regulations, 2010 CFR

...if available, either: 8 Additional information on electronic submission to the DTIC can be found online, currently at http://www.dtic.mil/dtic/submitting/elec_subm.html. (1) Directly to the DTIC; or (2) To...

2009-07-01

380

National Security and the U.S. Naval Research Laboratory, Seventy Years of Science for the Navy and the Nation (1923-1993).  

National Technical Information Service (NTIS)

This report highlights the significance of NRL's unclassified contributions to national security over the past seven decades. It explains how the Laboratory's accomplishments in defense science and technology have had a powerful impact on the nation's mil...

D. J. DeYoung

1993-01-01

381

40 CFR 258.41 - Project XL Bioreactor Landfill Projects.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Project XL Bioreactor Landfill Projects. 258... § 258.41 Project XL Bioreactor Landfill Projects. (a...North Carolina Project XL Bioreactor Landfill Requirements...30-millimeter (âmilâ) flexible membrane liner (FML) or 60-mil if...

2010-07-01

382

40 CFR 258.41 - Project XL Bioreactor Landfill Projects.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 false Project XL Bioreactor Landfill Projects. 258... § 258.41 Project XL Bioreactor Landfill Projects. (a...North Carolina Project XL Bioreactor Landfill Requirements...30-millimeter (âmilâ) flexible membrane liner (FML) or 60-mil if...

2009-07-01

383

Highly active AuCo alloy nanoparticles encapsulated in the pores of metal-organic frameworks for hydrolytic dehydrogenation of ammonia borane.  

PubMed

Ultrafine AuCo alloy nanoparticles were successfully encapsulated in the pores of MIL-101 by using the double solvents method combined with the overwhelming reduction approach, which exert excellent catalytic activity for hydrolytic dehydrogenation of ammonia borane. PMID:24760206

Li, Jun; Zhu, Qi-Long; Xu, Qiang

2014-05-01

384

Spaceflight performance of several types of silicon solar cells on the LIPS 3 satellite  

NASA Technical Reports Server (NTRS)

Results from exposure of several types of Solarex silicon cells to a space environment for nearly two years on the LIPS 3 satellite are presented. Experiments include standard thickness (10 mil) cells with and without back surface fields, and ultrathin (2 mil) cells also with and without back surface fields. A comparison between a widely used coverslide adhesive, DC 93-500 and a potential alternate is also presented. The major findings from the data are that the 2 mil cells without a back surface field show the smallest normalized short circuit current degradation and that the 10 mil back surface field cells show the greatest absolute power output for the radiation exposures and temperatures encountered. The new encapsulant (McGhan Nusil CV-2500) exhibits a degradation comparable to DC 93-500. A comparison is made with each of the cell types in this experiment with expectations based on JPL Radiation Handbook data.

Silver, J.; Warfield, D.

1991-01-01

385

78 FR 20948 - Notice Pursuant to the National Cooperative Research and Production Act of 1993-Network Centric...  

Federal Register 2010, 2011, 2012, 2013

...Specifically, DCN, Paris, FRANCE; MilSOFT ICT-Bilisim Iletisim Teknolojileri A.S., Ankara, TURKEY; and Software Engineering Institute/CMU, Pittsburgh, PA, have withdrawn as parties to this venture. No other changes have been...

2013-04-08

386

Printed Wiring Assembly and Interconnection Reliability.  

National Technical Information Service (NTIS)

This report presents reliability prediction models for printed wiring assemblies, solderless wrap assemblies, wrapped and soldered assemblies, and discrete wiring assemblies w/electroless deposited PTH for inclusion in MIL-HDBK-217. Collected field failur...

D. W. Coit

1981-01-01

387

32 CFR 634.3 - Explanation of abbreviations and terms.  

Code of Federal Regulations, 2013 CFR

...634.3 Explanation of abbreviations and terms. Abbreviations and special terms used in this subpart are explained in the Glossary of AR 190-5. It is available on the internet at: www.usapa.army.mil...

2013-07-01

388

33 CFR 148.209 - How is the application processed?  

Code of Federal Regulations, 2010 CFR

...the Deepwater Port Interagency MOU available at the following hyperlink: http://www.uscg.mil/hq/G-M/mso/docs/dwp_ white_house_task_force_energy_ streamlining.pdf. (b) Each adjacent coastal State, including relevant...

2010-07-01

389

33 CFR 148.209 - How is the application processed?  

Code of Federal Regulations, 2010 CFR

...the Deepwater Port Interagency MOU available at the following hyperlink: http://www.uscg.mil/hq/G-M/mso/docs/dwp_ white_house_task_force_energy_ streamlining.pdf. (b) Each adjacent coastal State, including relevant...

2009-07-01

390

The formation of weathering products on the LEW 85320 ordinary chondrite - Evidence from carbon and oxygen stable isotope compositions and implications for carbonates in SNC meteorites  

NASA Technical Reports Server (NTRS)

Isotopic analysis of nesquehonite recovered from the surface of the LEW 85320 H5 ordinary chondrite shows that the delta C-13 and delta O-18 values of the two generations of bicarbonate (Antarctic and Texas) are different: delta C-13 = + 7.9 per mil and + 4.2 per mil; delta O-18 = + 17.9 per mil and + 12.1 per mil, respectively. Carbon isotopic compositions are consistent with equilibrium formation from atmospheric carbon dioxide at - 2 + or - 4 C (Antarctic) and + 16 + or - 4 C (Texas). Oxygen isotopic data imply that the water required for nesquehonite precipitation was derived from atmospheric water vapor or glacial meltwater which had locally exchanged with silicates, either in the meteorite or in underlying bedrock. Although carbonates with similar delta C-13 values have been identified in the SNC meteorites EETA 79001 and Nakhla, petrographic and temperature constraints argue against their simply being terrestrial weathering products.

Grady, Monica M.; Wright, I. P.; Pillinger, C. T.; Gibson, E. K., Jr.

1989-01-01

391

Stable-isotope ratios of hydrogen and oxygen in precipitation at Norman, Oklahoma, 1996-2008  

USGS Publications Warehouse

Precipitation samples for measurement of stable-isotope ratios of hydrogen (delta2H) and oxygen (delta18O) were collected at the Norman Landfill Research Site in Norman, Oklahoma, from May 1996 to October 2008. Rainfall amounts also were measured at the site (U.S. Geological Survey gaging station 07229053) during the collection period. The delta2H of precipitation samples ranged from -121.9 to +8.3 per mil, and the delta18O of precipitation ranged from -16.96 to +0.50 per mil. The volume-weighted average values for delta2H and delta18O of precipitation over the 12-year measurement period were -31.13 per mil for delta2H and -5.57 per mil for delta18O. Average summer-season delta2H and delta18O values of precipitation usually were more positive (enriched in the heavier isotopes) than winter values.

Jaeschke, Jeanne B.; Scholl, Martha A.; Cozzarelli, Isabelle M.; Masoner, Jason R.; Christenson, Scott; Qi, Haiping

2011-01-01

392

78 FR 51176 - Proposed Collection; Comment Request  

Federal Register 2010, 2011, 2012, 2013

...the proposal and associated collection instruments, please write to Military Surface Deployment and Distribution Command, 1 Soldier Way, Scott Air Force Base, Illinois, 62225-5006; email to tony.mayo@us.army.mil; or call the Department of...

2013-08-20

393

Evaluation of Environmental Profiles for Reliability Demonstration.  

National Technical Information Service (NTIS)

This report describes the results of a 19-month study to determine the adequacy of the environmental profiles of MIL-STD-781, 'Reliability Tests: Exponential Distribution,' and provide recommendations for their improvement. The environmental and failure h...

G. Hirschberger A. Dantowitz

1975-01-01

394

Insensitive Munitions Modeling Improvement Efforts.  

National Technical Information Service (NTIS)

Mil-STD 2105C and numerous standardization agreements (STANAGs) outline the various Insensitive Munitions (IM) threats that are designed to simulate the hazards munitions commonly exposed to on the modern battlefield. These threats include sympathetic det...

C. Dyka D. Pfau S. DeFisher

2010-01-01

395

76 FR 70978 - Environmental Impact Statement for Disposition of Hangars 2 and 3, Fort Wainwright, AK  

Federal Register 2010, 2011, 2012, 2013

...army.mil. FOR FURTHER INFORMATION CONTACT: Please contact Ms. Linda Douglass, Public Affairs Office (PAO), IMPC-FWA-PAO (Douglass), 1060 Gaffney Road 5900, Fort Wainwright, AK 99703-5900; telephone (907) 353-...

2011-11-16

396

77 FR 42489 - Notice of Availability of the Draft Feasibility Study; Environmental Impact Statement for the...  

Federal Register 2010, 2011, 2012, 2013

...Jarrett@usace.army.mil. For inquiries from the media, please contact the USACE Omaha District Public Affairs Officer (PAO), Ms. Monique Farmer by telephone (402) 995-2416, by mail: 1616 Capitol Avenue, Omaha, NE., 68102-4901, or...

2012-07-19

397

Photometric Evaluation of Reflection-Reducing Coating for Aircraft Instrument Cover Glass.  

National Technical Information Service (NTIS)

Comparisons were made between plain instrument cover glass used on aircraft instrument panels and cover glass deposited with multilayer antireflection coating conforming to MIL-C-14806 and AMS 2521. Photometric measurements of reflections, light transmiss...

H. R. Stowell R. W. Bauer

1969-01-01

398

Al, Ti, and Cr: Complex Zoning in Synthetic and Natural Nakhlite Pyroxenes  

NASA Technical Reports Server (NTRS)

Nakhlites are olivine-bearing clinopyroxene cumulates. The cumulus pyroxenes have cores that are relatively homogeneous in Fe, Mg, and Ca, but show complex zoning of minor elements, especially Al, Ti, and Cr. Zoning patterns contain information about crystallization history parent magma compositions. But it has proven difficult to decipher this information and translate the zoning patterns into petrogenetic processes. This abstract reports results of high-precision Electron Probe MicroAnalysis (EPMA) analysis of synthetic nakhlite pyroxenes run at fO2 from IW to QFM. It compares these with concurrent analyses of natural nakhlite MIL03346 (MIL), and with standardprecision analyses of Y000593 (Y593) collected earlier. Results suggest that (1) different processes are responsible for the zoning of MIL and other more slowly-cooled nakhlites such as Y593, and (2) changes in oxidation conditions during MIL crystallization are not responsible for the unusual Cr zoning pattern

McKay, G.; Le, L.; Mikouchi, T.

2007-01-01

399

32 CFR 22.710 - Assignment of grants administration offices.  

Code of Federal Regulations, 2010 CFR

...10 for specific addresses of administration offices): 10 The âFederal Directory of Contract...http://www.dcma.mil. (a) Regional offices of the Office of Naval Research, for grants and cooperative agreements...

2010-07-01

400

32 CFR 22.710 - Assignment of grants administration offices.  

Code of Federal Regulations, 2010 CFR

...10 for specific addresses of administration offices): 10 The âFederal Directory of Contract...http://www.dcma.mil. (a) Regional offices of the Office of Naval Research, for grants and cooperative agreements...

2009-07-01

401

Development of Protective Coatings for Chromium-Base Alloys  

NASA Technical Reports Server (NTRS)

Chromium alloy sheet was clad with 5 to 10-mil-thick oxidation-resistant nickel-base alloy foils. Specimens also contained 1/2 to 1-mil-thick intermediate layers of platinum, tungsten, and/or W-25Re. Cladding was done by the isostatic hot gas-pressure bonding,.process. The clad chromium-alloy specimens were cyclic oxidation tested at 2100 F and 2300 F for up to 200 hours to determine the effectiveness of these metal claddings in protecting the chromium alloy Cr-5W from oxidation and contamination. Cladding systems consisting of 5-mil-thick Ni-20Cr-20W modified with 3 to 5 weight percent aluminum and containing a 1 /2-mil tungsten diffusion barrier demonstrated potential for long-time service at temperatures as high as 2300 F.

English, J. J.; MacMillan, C. A.; Williams, D. N.; Bartlett, E. S.

1966-01-01

402

32 CFR 806b.32 - Submitting notices for publication in the Federal Register.  

Code of Federal Regulations, 2010 CFR

...National Defense 6 2010-07-01 2010-07-01 false ...Major Command Privacy Office, to Air Force Chief...pentagon.af.mil using Microsoft Word, using the...available should the Office of Management and...

2010-07-01

403

Anticyclonic Tornadoes.  

National Technical Information Service (NTIS)

Anticyclonic tornadoes have been thought to be extremely rare. This study revealed that these storms could be found more often. Anticyclonic tornadoes may frequently develop in the vicinity of a cyclonic tornado. Their separation may vary from several mil...

T. T. Fujita

1977-01-01

404

20-Year Performance of the Buried Geomembrane Lining at Mt. Elbert Reservoir.  

National Technical Information Service (NTIS)

This report discusses the performance after 20 years of service of the installed 290 acres of 45-mil reinforced chlorinated polyethylene (CPER) geomembrane in the Mt. Elbert pumped storage facility of the Mt. Elbert reservoir, as determined by periodic sa...

J. J. Swihart E. Gleason

2001-01-01

405

CVD-produced boron filaments  

NASA Technical Reports Server (NTRS)

A technique for producing boron filaments with an average tensile strength of 6.89 GPa has been developed which involves longitudinal splitting of the filament and core (substrate) removal by etching. Splitting is accomplished by a pinch wheel device which continuously splits filaments in lengths of 3.0 m by applying a force to the side of the filament to create a crack which is then propagated along the axis by a gentle sliding action. To facilitate the splitting, a single 10 mil tungsten substrate is used instead of the usual 0.5 mil substrate. A solution of hot 30% hydrogen peroxide is used to remove the core without attacking the boron. An alternative technique is to alter the residual stress by heavily etching the filament. Average strengths in the 4.83-5.52 GPa range have been obtained by etching an 8 mil filament to 4 mil.

Wawner, F. E.; Debolt, H. E.; Suplinskas, R. D.

1980-01-01

406

Timber Supply and Demand Assessment of the Green and White Mountain National Forests' Market Area.  

National Technical Information Service (NTIS)

This report describes a timber supply and demand assessment of the Green and White Mountain National Forests' market area using USDA Forest Service, Forest Inventory and Analysis data, production information provided by forest industry, and a stump-to-mil...

C. B. LeDoux P. E. Sendak W. H. McWilliam N. Huyler T. Malecek W. Muzzey T. Jones

2001-01-01

407

The Fe-Isotope System and Its Applicability as a Biosignature  

Microsoft Academic Search

High precision (0.05 per mil) Fe isotope analyses show that igneous rocks and loess are invariant but chemical sediments have variable compositions. The relative roles of abiologic and biologic fractionations that produced this range are discussed.

B. L. Beard; C. M. Johnson; J. Skulan; L. A. Taylor; H. Sun; L. Cox; K. H. Nealson; M. P. Sinha; M. J. Gerdenich

2001-01-01

408

Physical and Computer Modeling of Military Earth Grounding Practices in a HEMP (High-Altitude Electromagnetic Pulse) Environment.  

National Technical Information Service (NTIS)

Military grounding practices compatible with hardening electronic systems to high-altitude electromagnetic pulse (HEMP) illumination are considered. This study concerns the grounding practices outlined in MIL-STD-188-124, Common Long-Haul/Tactical Communi...

A. A. Cuneo J. J. Loftus R. A. Perala

1983-01-01

409

48 CFR 213.301 - Governmentwide commercial purchase card.  

Code of Federal Regulations, 2013 CFR

...for Establishing and Managing Purchase, Travel, and Fuel Card Programsâ at http://www.acq.osd.mil/dpap/pdi/pc/docs/dod_charge_card_guide_20080819.doc. Additional guidance on the fuel card programs is available at...

2013-10-01

410

Shelter  

MedlinePLUS

... and pets inside. Lock doors, close windows, air vents and fireplace dampers. Turn off fans, air conditioning ... if possible. Seal all windows, doors and air vents with 2-4 mil. thick plastic sheeting and ...

411

77 FR 58104 - Availability of the Fiscal Year 2011 Inventory of Contracts for Services  

Federal Register 2010, 2011, 2012, 2013

...Pentagon, Washington, DC 20301-3060. Comments also may be submitted by email to Jeffrey.Grover@osd.mil. FOR FURTHER INFORMATION CONTACT: Jeff Grover, telephone 703-697-9352. SUPPLEMENTARY INFORMATION: In accordance with section...

2012-09-19

412

76 FR 57026 - Availability of the Fiscal Year 2010 Inventory of Contracts for Services  

Federal Register 2010, 2011, 2012, 2013

...concerning this inventory to: Jeffrey Grover, Senior Procurement Analyst, OUSD (AT...DC 20301-3060, or e-mail Jeffrey.Grover@osd.mil FOR FURTHER INFORMATION CONTACT: Jeffrey Grover, telephone 703-697- 9352....

2011-09-15

413

78 FR 45515 - Availability of the Fiscal Year 2012 Inventory of Contracts for Services  

Federal Register 2010, 2011, 2012, 2013

...Pentagon, Washington, DC 20301-3060. Comments also may be submitted by email to Jeffrey.Grover@osd.mil FOR FURTHER INFORMATION CONTACT: Jeff Grover, telephone 703-697-9352. SUPPLEMENTARY INFORMATION: In accordance with section...

2013-07-29

414

Performance of Army Arctic Engine Oils in Hydraulic and Power Transmission Fluid Systems.  

National Technical Information Service (NTIS)

Development of the Army's new Arctic Engine Oil (OEA) Specification MIL-L-46167 required numerous laboratory and field engine evaluations as well as large scale laboratory and field testing of these new lubricants in military hydraulic and power transmiss...

S. J. Lestz P. D. Hopler T. C. Bowen

1975-01-01

415

76 FR 41278 - Cargo Security Risk Reduction; Public Listening Sessions  

Federal Register 2010, 2011, 2012, 2013

...using the contact information listed in this notice...stakeholders. FOR FURTHER INFORMATION CONTACT: To submit...mil. SUPPLEMENTARY INFORMATION: Background In September...Guard held a Cargo Security Symposium in Reston...generally consists of Awareness,...

2011-07-13

416

Merits of an Independent Pre-Cap Inspection.  

National Technical Information Service (NTIS)

Results of routine destructive physical analysis carried out on monolithic integrated circuits are presented. Circuits meant to meet MIL-STD-883 level B screening flow show consistent failure under destructive physical analysis tests. Potential reliabilit...

J. A. Jones

1991-01-01

417

75 FR 65613 - Withdrawal of Notice for Preparation of an Environmental Impact Statement for the Pine Mountain...  

Federal Register 2010, 2011, 2012, 2013

...Environmental Impact Statement for the Pine Mountain Dam & Lake Project, AR AGENCY...Environmental Impact Statement (EIS) for the Pine Mountain Dam & Lake Project, AR. The...mil. SUPPLEMENTARY INFORMATION: The Pine Mountain Dam project was authorized...

2010-10-26

418

32 CFR 505.10 - Use and establishment of exemptions.  

Code of Federal Regulations, 2013 CFR

...National Defense Department of Defense (Continued) DEPARTMENT...usapa.army.mil/ ), the Defense Privacy Office's Web site...Special exemption which is self-executing. Once an exemption...Secretary of the Army and the Defense Privacy Office, it will...

2013-07-01

419

Cratering evaluations and results.  

National Technical Information Service (NTIS)

Investigations were performed on the 1-mil ultrasonic aluminum wire bonding process to determine how the interaction of the bonding parameters, ultrasonic power, time, force, and aluminum wire, contribute to cratering (cracking or damage to oxide/passivat...

J. R. Church

1993-01-01

420

Phenotype and Function of Bone Marrow Infiltrating Lymphocytes in Chronic Myelogenous Leukemia.  

National Technical Information Service (NTIS)

The aims of this project are to determine the phenotype and antileukemic activity of activated bone marrow infiltrating leukemia (MIL) and compare them to activated peripheral blood lymphocytes from patients with chronic myelogenous leukemia (CML) on imat...

V. Pullarkat

2007-01-01

421

Phenotype and Function of Bone Marrow Infiltrating Lymphocytes in Chronic Myelogenous Leukemia.  

National Technical Information Service (NTIS)

The aims of this project are to determine the phenotype and antileukemic activity of activated bone marrow infiltrating leukemia (MIL) and compare them to activated peripheral blood lymphocytes from patients with chronic myelogenous leukemia (CML) on imat...

V. Pullarkat

2008-01-01

422

46 CFR 50.10-30 - Coast Guard number.  

Code of Federal Regulations, 2013 CFR

...Louisville. MEM Memphis. MIA Miami. MIL Milwaukee. MIN Minneapolis. MOB Mobile. MOR Morgan City. NAS Nashville. NEW New Orleans. NYC New York. PAD Paducah. PAT Port Arthur. PHI Philadelphia. PIT...

2013-10-01

423

Development of Nondestructive Pull Test Requirements for Gold Wires on Multilayer Thick-Film Hybrid Microcircuits.  

National Technical Information Service (NTIS)

Thermosonic wire bonding is used to attach 1-mil gold wires to multilayer thick-film hybrid microcircuits manufactured by the Bendix Corporation, Kansas City Division for the Department of Energy. This study was conducted to develop a realistic, nondestru...

R. J. Blazek

1983-01-01

424

14 CFR 27.613 - Material strength properties and design values.  

Code of Federal Regulations, 2010 CFR

...ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL CATEGORY... (3) ANC-18, âDesign of Wood Aircraft Structuresâ. (4) MIL-HDBK-23, âComposite Construction for Flight...

2014-01-01

425

77 FR 12578 - Notice of Intent To Grant Exclusive Patent License; C&C Ventures, Doing Business as Randolph...  

Federal Register 2010, 2011, 2012, 2013

...INFORMATION CONTACT: Rita Manak, Head, Technology Transfer Office, NRL Code 1004, 4555 Overlook Avenue SW., Washington, DC 20375...delays, please fax 202-404-7920, email: rita.manak@nrl.navy.mil or use courier delivery to expedite response....

2012-03-01

426

The establishment of a production-ready manufacturing process utilizing thin silicon substrates for solar cells  

NASA Technical Reports Server (NTRS)

During the months of February and March, work towards the goals of the contract were started as scheduled. The first shipment of thin substrates were received and wafer processing was initiated. The objective of the contract is to investigate, develop and characterize the methods for establishing a production-ready manufacturing process which utilizes thin silicon substrates for solar cells. The thin substrates to be manufactured are three inches diameter, p-type Czochralski wafers of approximately 1 Omega cm resistivity. The wafers are prepared by sawing directly to thickness of 8 mils and 5 mils. To ensure removal of residual saw damage, most substrates are chemically etched to final thicknesses of 7 mils and 4 mils. The thin substrates are used to fabricate solar cells by standard processing techniques.

Pryor, R. A.

1979-01-01

427

78 FR 18563 - Proposed Collection; Comment Request  

Federal Register 2010, 2011, 2012, 2013

...to: the Office of the Under Secretary of Defense for Acquisition, Technology, and Logistics, 3010 Defense Pentagon, Washington, DC 20301-3010, or contact Shanna Poole at Shanna.Poole@osd.mil or (703) 692-3032. Title;...

2013-03-27

428

76 FR 51353 - Nominations for Membership on the Ocean Research Advisory Panel  

Federal Register 2010, 2011, 2012, 2013

...Nominations should be submitted via e-mail to CDR Stephen D. Martin, U.S. Navy, at stephen.d.martin@navy.mil. Contact Information...Nominations: Submit nominations via e-mail to CDR Stephen Martin...

2011-08-18

429

Stubby Hobo Loads Analysis.  

National Technical Information Service (NTIS)

This report covers the Stubby Hobo to pylon interface reaction loads analysis. The approach used was that delineated in Military Specification MIL-A-8591D. The design loads for the Stubby Hobo were established from the study. (Author)

W. W. Dyess W. J. Robinson

1973-01-01

430

77 FR 72941 - Voluntary Education Programs  

Federal Register 2010, 2011, 2012, 2013

...institutions. The homepage for DoD Voluntary Education (http://apps.mhf.dod.mil/voled) also contains a link where personnel...leadership-ready force. Today's fast-paced and highly mobile environment, where frequent deployments and mobilizations...

2012-12-07

431

40 CFR 63.321 - Definitions.  

Code of Federal Regulations, 2013 CFR

...one air change per five minutes. The vapor barrier enclosure shall be constructed of glass, plexiglass, polyvinyl chloride, PVC sheet 22 mil thick (0.022 in.), sheet metal, metal foil face composite board, or other materials that are...

2013-07-01

432

Military and the Media: The Media and the Third Army under Patton and Yeosock.  

National Technical Information Service (NTIS)

The relationship between the military and the media has differed with each war and each technological advancement. Nevertheless some problems seem eternal. Since Sir William Russell reported from the Crimea there has been an ongoing debate between the mil...

S. V. Willis

1993-01-01

433

Interface Control Document for RT-XXXX/ARC-164 UHF-AM Radio.  

National Technical Information Service (NTIS)

This document establishes the requirements for the transfer of all data between the AN/ARC-164 and the onboard aircraft systems. The primary mode of information transfer will be via a MIL-STD-1553B data bus. (Author)

1983-01-01

434

76 FR 17841 - Notice of Intent To License Government-Owned Inventions; Intent To License Exclusively  

Federal Register 2010, 2011, 2012, 2013

...The U.S. Army Edgewood Chemical Biological Center intends to license...mil, U.S. Army Edgewood Chemical Biological Center (ECBC), AMSRD-ECB-PI-BP-TT...Applications, U.S. Army Edgewood Chemical Biological Center,...

2011-03-31

435

Military Engineer as a Critical Peace Operations Multiplier.  

National Technical Information Service (NTIS)

While emerging Joint engineer doctrine attempts to define 'peace operations' roles and missions, current Army doctrine falls far short of outlining the responsibilities and synergistic results possible through the effective integration of the tactical mil...

T. T. Semonite

1999-01-01

436

An alternative method for preparing FMECA's  

NASA Astrophysics Data System (ADS)

After evaluating the practical difficulties associated with the application of MIL-STD-1629-based failure-modes-and-effects analyses, a cost-saving alternative methodology is proposed which, in addition to being rapid, allows reliability engineers to influence design decisions. This method follows the spirit rather than the letter of MIL-STD-1629, and has been found to surmount the inherent problem of the standard that is associated with a single failure's ability to effectively disrupt only one system function.

Sexton, Ronald D.

437

The storage stability of navy distillate fuel for ships. Final report  

Microsoft Academic Search

Experiments started in 1969 to ascertain the storage stability of the new MIL-F-24397 Navy Distillate fuel have been completed. Long-term experiments simulating actual storage at ambient temperatures and accelerated tests for predictive purposes were run. If the four fuels used in this investigation are repesentative, Navy Distillate fuels procured under MIL-F-24397 can be expected to be as stable in storage

M. Q. Garner; E. W. White

1974-01-01

438

Thermal-oxidation stability of diesel fuels. Interim report, October 1983January 1986  

Microsoft Academic Search

Injector fouling bench tests(IFBT) and modified Jet Fuel Thermal Oxidation Test(JFTOT, ASTMD 3241) were used to develop methodology for evaluating the thermal stability of diesel fuels. A new method for measuring the thickness of lacquer-type fuel deposits formed on test surfaces at elevated temperatures was developed and applied to a variety of fuels, both with and without MIL-S-53021(additive stabilizer package).

L. L. Stavinoha; J. G. Barbee; D. M. Yost

1986-01-01

439

Engineering evaluation and analysis for the improvement of military standard generators. Volume 2. Final report, 24 February29 May 1987  

Microsoft Academic Search

Contents include: noise kits for 15- and 30-kW generator sets; Mil-Std generator set towed assemblage; electromagnetic pulse (EMP) analysis on the electromagnetic control system of the Mep-114A 30-kW DED generator set; technical data sheet - solar electric-battery charger; technical data sheet - diesel fuel heater\\/water separator; Patriot fuel-waxing study of the 15- and 30-kW Mil-Std generator sets; Photos-Regency net (modified

R. J. Adolph; L. G. Lawrence; G. W. Perkins; E. Thorwaldson

1987-01-01

440

Emissions characterization of diesel forklift engines  

Microsoft Academic Search

This paper presents results of research conducted to characterize exhaust emissions for diesel engines typically used in forklift operation. Emissions characterization involved three fuels (MIL-F-46162A(MR), MIL-F-46162B(ME), and EPA DF-2 (Phillips Reference Fuel) and four engines, tested under a variety of steady-state conditions. Gaseous, particulate and unregulated emissions were included in the emissions characterization. Unregulated emissions included sulfur dioxide, sulfate, aldehydes,

H. E. Dietzmann; T. P. Lee

1984-01-01

441

Electrospark deposition coatings  

NASA Astrophysics Data System (ADS)

Hard surfacing for wear resistant and low-friction coatings has been improved by means of advances in the computer controls in electronic circuitry of the electrospark deposition (ESD) process. coatings of nearly any electrically conductive metal alloy or cermet can be deposited on conductive materials. Thickness is usually two mils or less, but can be as high as 10 mils. ESD coatings can quadrupole cutting tool life.

Sheely, W. F.

1986-11-01

442

Society of Automotive Engineers AS2 standardization activities  

Microsoft Academic Search

The Society of Automotive Engineers (SAE) Avionics Systems Division has been developing standards to meet the requirements of the aerospace community beginning with the development of MIL-STD-1553. In 1979, the SAE began to look at requirements for an avionics bus with performance which was substantially better than MIL-STD-1553B. The results of this work was the generation of two high-speed data

J. W. Meyer

1992-01-01

443

Measurement of electrical and thermal conductance of tape cables at cryogenic temperatures  

Microsoft Academic Search

Electrical and thermal conductances of tape cable and nickel wire samples were measured at several temperatures between 60K and 300K. The tape cable consisted of 48 nickel wires, each 0.7 mil in diameter, sandwiched between 0.5 mil thick and 0.35 inch wide Kapton foils. Test results are compared with theoretical predictions based on the Bloch-Gruneisen expression for the electrical resistivity

C. Linnet

1978-01-01

444

Capacitor Test, Evaluation. and Modeling Within NASA Electronic Parts and Packaging (NEPP) Program. "Why Ceramic Capacitors Fracture During Manual Soldering and How to Avoid Failures"  

NASA Technical Reports Server (NTRS)

Presentation discusses: (1) Why Multi-Layer Ceramic Capacitors(MLCCs) crack during manual soldering? Workmanship and parts issues. (2) Do existing qualification requirements assure crack-free soldering? MIL-spec Thermal Shock (TS) testing. MIL-spec Resistance to Soldering Heat (RSH) test. (3) What test can assure reliable soldering? Mechanical characteristics of ceramics. Comparison of three TS techniques: LND, TSD, and IWT. (4) Simulation of TS conditions.

Teverovsky, Alexander

2011-01-01

445

A co-training framework for visual tracking with multiple instance learning  

Microsoft Academic Search

This paper proposes a Co-training Multiple In- stance Learning algorithm (CoMIL). Our framework is based on the co-training approach which labels incoming data con- tinuously, and then uses the prediction from each classifier to enlarge the training set of the other. The discriminative classifier is implemented using online multiple instance learning (MIL), which can deal with inaccurate positive samples in

Huchuan Lu; Qiuhong Zhou; Dong Wang; Ruan Xiang

2011-01-01

446

Lubricant evaluation and performance. Final technical report, January 1987June 1988  

Microsoft Academic Search

This effort involved the development of improved methods for defining and measuring turbine engine lubricant performance and the development of improved techniques for lubricant monitoring, lubrication system health monitoring, investigating antiwear characteristics and load carrying capacities of lubricants. In Task I, Arrhenius plots were developed for describing the effective life of MIL L 7808, MIL-L-23699 and 4 cSt viscosity candidate

C. S. Saba; H. A. Smith; M. A. Keller; R. E. Kauffman; V. K. Jain

1989-01-01

447

Performance oriented packaging report for charge, demolition block, 1/4 pound, (TNT) w/priming adapters m1a4. Final report  

SciTech Connect

This POP report is for the Charge, Demolition Block, 1/4 Pound, (TNT) w/ Priming Adapters which is packaged 192 charges/mil-B-2427 wood box. This report. describes the results of testing conducted on a similar packaging which is used as an analogy for this item.... Performance oriented packaging, POP, Charge, Demolition block, 1/4 Pound, (TNT) w/ Priming adapters, Mil-B-2427 Wood box.

Sniezek, F.M.

1992-11-02

448

Reinvestigation of the M(II) (M = Ni, Co)/tetrathiafulvalenetetracarboxylate system using high-throughput methods: isolation of a molecular complex and its single-crystal-to-single-crystal transformation to a two-dimensional coordination polymer.  

PubMed

A high-throughput methodology combined with X-ray powder diffraction measurements was used to investigate the reactivity of the TetraThiaFulvalene TetraCarboxylic acid ((TTF-TC)H(4)) with divalent metals (M = Ni, Co) under various reaction conditions (stoichiometry, pH, temperature). Two new crystalline phases were identified and then studied by single crystal X-ray diffraction. Whereas the first one appears to be a simple salt, the second one, formulated {[M(H(2)O)(4)](2)(TTF-TC)}·4H(2)O, is built of 2:1 M:TTF-TC molecular complexes and labeled MIL-136(Ni, Co) (MIL stands for Materials Institute Lavoisier). The combination of thermogravimetric analysis and thermodiffraction studies reveals that MIL-136(Ni) exhibits a complex dehydration behavior. Indeed, a partial dehydration/rehydration process led to the single-crystal-to-single-crystal transformation of the molecular compound in a two-dimensional coordination polymer formulated {[Ni(2)(H(2)O)(5)(TTF-TC)]}·H(2)O (MIL-136'(Ni)). Magnetic and redox properties of MIL-136(Ni, Co) were investigated. Magnetic measurements indicate that all the magnetic coupling, intra- and intermolecular, are very weak; thus, the magnetic data of MIL-136(Ni, Co) have been interpreted in term of single-ion spin orbit coupling. Solid state cyclic voltammetry of MIL-136(Ni, Co) presents three reversible waves which were assigned to the redox activity of the TTF core and the metallic cations. In contrast to solids based on TTF linkers and alkaline ions, the MIL-136(Ni, Co) complexes do not act as excellent positive electrode materials for Li batteries, but present two reversible electron oxidation of the TTF core. These observations were tentatively related to the strength of the metal-carboxylate bond. PMID:20964449

Nguyen, Thi Le Anh; Devic, Thomas; Mialane, Pierre; Rivière, Eric; Sonnauer, Andreas; Stock, Norbert; Demir-Cakan, Rezan; Morcrette, Mathieu; Livage, Carine; Marrot, Jérome; Tarascon, Jean-Marie; Férey, Gérard

2010-11-15

449

Enhancing activity of N-glycosylation for constitutive proteins secretions in non-polarized cells  

Microsoft Academic Search

Several fusion proteins of mouse Interleukins (mILs) and the enhanced green fluorescent protein (EGFP) were expressed in fibroblast and epithelial cells. Among these proteins, the mIL-31 derivative was the most efficiently secreted into the medium in a N-glycosylation-dependent manner. From the analysis of deletion mutants, the minimal structure for constitutive secretions consisted of a signal peptide and N-glycosylation. Introduction of

Nobutake Akiyama; Yuji Ohno; Takahiro Fukuda; Yosinobu Manome; Saburo Saito

2009-01-01

450

Sedimentary cycle of the boron isotopes  

Microsoft Academic Search

Marine sediments contain two isotopically distinct components; a non-desorbable fraction with delta¹¹B between -4.3 and +2.8 per mil (n = 10) and a desorbable component with delta¹¹B between 13.9 and 15.8 per mil (n = 6). The adsorption coefficient, K, for the uptake of B from sea water by fluvial suspended material (Mississippi) has an experimentally determined value of 1.54

A. J. Spivack; M. R. Palmer; J. M. Edmond

1987-01-01

451

Boron isotope exchange between seawater and the oceanic crust  

Microsoft Academic Search

Dissolved boron in seawater from the Atlantic and Pacific is isotopically homogeneous at 39.5 per mil( B\\/ B ratios are expressed as per mil deviations from NBS SRM 951). Unaltered mid-ocean ridge basalts (MORB) from the crest of the East Pacific Rise (EPR) at 21 and 13N have B contents of 0.39 +- 0.03 and 0.46 +- 0.03 ppm (about

A. J. Spivack; J. M. Edmond

1987-01-01

452

Microbe-Enhanced Environmental Fatigue Crack Propagation in HY130 Steel  

Microsoft Academic Search

Research was undertaken to characterize the effect of sulfate-reducing bacteria (SRB) on aqueous environment-enhanced fatigue cracking in a high-strength alloy steel. Desulfovibrio vulgaris in Postgate C solution greatly increased rates of ambient-temperature fatigue crack propagation (FCP) in tempered martensitic HY130 steel (MIL-S-24371A) under cathodic polarization and low-frequency, constant stress intensity range ([Delta]K) loading. Crack growth rates (da\\/dN) in the SRB

R. P. Gangloff; R. G. Kelly

1994-01-01

453

Conversion of cellulose and cellobiose into sorbitol catalyzed by ruthenium supported on a polyoxometalate/metal-organic framework hybrid.  

PubMed

Cellulose and cellobiose were selectively converted into sorbitol over water-tolerant phosphotungstic acid (PTA)/metal- organic-framework-hybrid-supported ruthenium catalysts, Ru-PTA/MIL-100(Cr), under aqueous hydrogenation conditions. The goal was to investigate the relationship between the acid/metal balance of bifunctional catalysts Ru-PTA/MIL-100(Cr) and their performance in the catalytic conversion of cellulose and cellobiose into sugar alcohols. The control of the amount and strength of acid sites in the supported PTA/MIL-100(Cr) was achieved through the effective control of encapsulated-PTA loading in MIL-100(Cr). This design and preparation method led to an appropriately balanced Ru-PTA/MIL-100(Cr) in terms of Ru dispersion and hydrogenation capacity on the one hand, and acid site density of PTA/MIL-100(Cr) (responsible for acid-catalyzed hydrolysis) on the other hand. The ratio of acid site density to the number of Ru surface atoms (nA /nRu ) of Ru-PTA/MIL-100(Cr) was used to monitor the balance between hydrogenation and hydrolysis functions; the optimum balance between the two catalytic functions, that is, 8.84MIL-100(Cr) catalyst with loadings of 3.2 wt?% for Ru and 16.7 wt?% for PTA. This research thus opens new perspectives for the rational design of acid/metal bifunctional catalysts for biomass conversion. PMID:23619979

Chen, Jinzhu; Wang, Shengpei; Huang, Jing; Chen, Limin; Ma, Longlong; Huang, Xing

2013-08-01

454

Space Qualification Test of a-Silicon Solar Cell Modules  

NASA Technical Reports Server (NTRS)

The basic requirement of solar cell modules for space applications are generally described in MIL-S-83576 for the specific needs of the USAF. However, the specifications of solar cells intended for use on space terrestrial applications are not well defined. Therefore this qualification test effort was concentrated on critical areas specific to the microseismometer probe which is intended to be included in the Mars microprobe programs.

Kim, Q.; Lawton, R. A.; Manion, S. J.; Okuno, J. O.; Ruiz, R. P.; Vu, D. T.; Kayali, S. A.; Jeffrey, F. R.

1997-01-01

455

A CMOS 100 MHz digital oscilloscope point processor and time base integrated circuit  

Microsoft Academic Search

A 100-MHz, 1.5-?m CMOS point processor\\/demultiplexer and time base integrated circuit has been developed for use in a digitizing oscilloscope. The component uses a single +5-V supply, accepts standard, negative ECL (emitter-coupled logic)-level inputs, and contains 46000 devices on a 311-mil×325-mil die. Those aspects of the design that comprise novel or improved circuitry or design techniques are described

E. Etheridge

1989-01-01

456

Evaluation of stainless steel tank corrosion in ICPP high-level radioactive waste service  

Microsoft Academic Search

At the Idaho Chemical Processing Plant, Types 304L and 348 stainless steels were corrosion tested in raffinates from reprocessing spent nuclear fuels. After exposure to the raffinate solutions for periods up to 28.6 years total service time, maximum penetration rates observed on these stainless steels were 0.059 mil per year in aluminum-zirconium process first-cycle raffinate, and 0.0004 mil per year

T. L. Hoffman; B. C. Norby; R. E. Mizia; C. A. Zimmerman

1983-01-01

457

Network time synchronization servers at the US Naval Observatory  

Microsoft Academic Search

Responding to an increased demand for reliable, accurate time on the Internet and Milnet, the U.S. Naval Observatory Time Service has established the network time servers, tick.usno.navy.mil and tock.usno.navy.mil. The system clocks of these HP9000\\/747i industrial work stations are synchronized to within a few tens of microseconds of USNO Master Clock 2 using VMEbus IRIG-B interfaces. Redundant time code is

Richard E. Schmidt

1995-01-01

458

32 CFR 239.9 - Application processing procedures.  

Code of Federal Regulations, 2013 CFR

...a)(3) of this part because of BRAC 2005 must be submitted directly to the U... 2 K6 2 NH0 3 8 0 30 0 0 1 Air Force-SAS Dist.-Mil BRAC-NH-Pease AFB-Applicant...4- NY-1 3 6 0 2-0 0 0 2 Army-SAS Dist-Mil Wounded-NY-Ft...

2013-07-01

459

A new thrust in radar EMC design for the twenty first century  

NASA Astrophysics Data System (ADS)

A review is presented of the technical requirements of MIL-STD-469 and the Radar Spectrum Engineering Criteria (RESC) of the National Telecommunications and Information Administration (NTIA), both of which are intended to restrict the radiated emissions spectra of defense radars to enhance electromagnetic compatibility with other cosite communications electronics. Each of these standards contains technically contrasting procedures for determining maximum acceptable limits to radar emissions. In contrast with MIL-STD-469, the RSEC document of NTIA approaches the radar EMC problem from the perspective of relative limits on spectral emission bandwidth. A theoretical examination of compliance difficulties with MIL-STD-469 is presented and contrasted with the RSEC. The analysis uses the method of determining the bounds on the spectrum of a continuous-wave pulse formulated by Mason and Zimmermann (1960) together with a modification of this method by Newhouse (1982) for determining the bounds on the spectrum of an FM (chirp) pulse. These methods demonstrate how MIL-STD-469A eliminates the previous compliance problems with MIL-STD-469 and creates technical harmony with the RSEC. The forthcoming MIL-STD-469A, which closely follows the RSEC spectrum criteria, is discussed.

Marcus, Robert B.

460

Postsynthetic ligand and cation exchange in robust metal-organic frameworks.  

PubMed

Postsynthetic ligand and metal ion exchange (PSE) processes are shown to readily occur in several "inert" metal-organic frameworks (MOFs), including zeolitic imidazolate frameworks (ZIFs). Ligand exchange can occur between solid samples, as was demonstrated under relatively mild conditions with two robust, topologically distinct MOFs, MIL-53(Al) and MIL-68(In). Interestingly, ligand PSE is not observed with MIL-101(Cr), which is attributed to the kinetic inertness of the Cr(III) ion. In addition to ligand exchange, metal ion (cation) PSE was also studied between intact MOF microcrystalline particles. Metal ion transfer between MIL-53(Al) and MIL-53(Fe) was readily observed. These PSE reactions were monitored and the products characterized by a number of techniques, including aerosol time-of-flight mass spectrometry, which permits single-particle compositional analysis. To show the potential synthetic utility of this approach, the PSE process was used to prepare the first Ti(IV) analogue of the robust UiO-66(Zr) framework. Finally, experiments to rule out mechanisms other than PSE (i.e., aggregation, dissolution/recrystallization) were performed. The results demonstrate that PSE, of either ligands or cations, is common even with highly robust MOFs such as UiO-66(Zr), MILs, and ZIFs. Furthermore, it is shown that PSE is useful in preparing novel materials that cannot be obtained via other synthetic methods. PMID:23039827

Kim, Min; Cahill, John F; Fei, Honghan; Prather, Kimberley A; Cohen, Seth M

2012-10-31

461

Baroreflex sensitivity might predict responders to milrinone in patients with heart failure.  

PubMed

The phosphodiesterase III inhibitor milrinone (MIL) is considered to be effective for "wet and cold" heart failure. In some cases, however, the inotropic effects of milrinone are insufficient. A previous study suggested that baroreflex sensitivity (BRS) predicts the cases in which MIL increases left ventricular dp/dt. The aim of this study was to determine whether BRS measured using the spontaneous sequence method predicts the MIL responders. Twenty-four patients with "wet and cold" heart failure whose systolic blood pressure > 100 mmHg were enrolled. At 2 hours MIL improved dys-pnea, general fatigue, urine volume, and tricuspid regurgitant pressure gradient in 13 patients (responders; R group), whereas it failed to improve in 11 patients (nonresponders; NR group). BRS in the R group was significantly higher than that in the NR group prior to the MIL infusion. At 2 hours after the MIL infusion, BRS was further increased in the R group, but did not increase in the NR group. The sensitivity and specificity of BRS at a cut-off level of 5 ms/mmHg for the prediction of R group were 0.94 and 0.93, respectively. BRS might be useful for identifying potential responders to milrinone in patients with blood pressure-preserved "wet and cold" heart failure. PMID:21173517

Kishi, Takuya; Sunagawa, Kenji

2010-01-01

462

Nitrogen stable isotope fractionation along trophic level pathways in deep sea bamboo corals  

NASA Astrophysics Data System (ADS)

Deep-sea bamboo corals (order Gorgonacea, family Isididae) found on seamounts on the California Margin (37° 22'N - 31° 54'N) have the potential to record annual to subannual changes in water mass chemistry over long periods of time (75-300 years). These corals are composed of a two-part skeleton of calcite internodes segmented by proteinaceous organic nodes. Radiocarbon analyses of the organic nodes show the presence of the anthropogenic bomb spike, reflecting a surface-derived food source for the corals (pre-bomb values of -81.3 per mil - -116. per mil, post-bomb values of 61.8 per mil - 81.3 per mil). Nitrogen stable isotopic analyses of the organic nodes (average ?15N = 13.78 per mil - 18.30 per mil) suggest that the corals feed on surface-derived organic matter, although not directly on sinking particulate organic matter but rather on an intermediary such as zooplankton. This study examines the nitrogen stable isotopic content of surface water plankton, bamboo coral polyp material, and bamboo coral organic node material sampled along the California Margin in 2007. Comparing these data with previously established zooplankton nitrogen stable isotope data will enable investigation of the pathway of surface water organic sources to bamboo coral organic material.

Myrvold, C. R.; Hill, T. M.; Spero, H. J.; Guilderson, T.

2008-12-01

463

Murine IL-4 is able to signal via chimeric human IL-4Ralpha/mouse gamma-chain receptor.  

PubMed

Human IL-4Ralpha binds to mouse gammac resulting in a chimeric receptor specific for human IL-4 but not mouse IL-4, providing in principle an inducible hIL-4 system. We investigated the in vitro and in vivo characteristics of human IL-4Ralpha transgenic mice on a mouse IL-4Ralpha-deficient background (hIL-4Ralpha Tg/mIL-4Ralpha(-/-)). The integrity of lymphocyte-specific hIL-4Ralpha expression in hIL-4Ralpha Tg/mIL-4Ralpha(-/-) mice was demonstrated by FACS analysis. This was confirmed in functional studies as lymphocytes responded to recombinant hIL-4 but not mIL-4 or mIL-13 in proliferation and T helper differentiation assays, demonstrating species-specificity and inducibility of the chimeric receptor in vitro. We then infected transgenic mice with Nippostrongylus brasiliensis, known to induce a strong Type 2 response in wild-type mice. As expected hIL-4Ralpha Tg/mIL-4Ralpha(-/-) mice were unable to expel N. brasiliensis worms which confirms unresponsiveness in non-lymphocytes. However they developed a Th2 cytokine and IgE response in the absence of induction with hIL-4. These results suggested that lymphocyte-specific IL-4Ralpha responsiveness was still present in vivo. Neutralization of endogenous mIL-4 resulted in inhibition of N. brasiliensis-induced Th2 cytokine and total IgE production in hIL-4Ralpha Tg/mIL-4Ralpha(-/-) mice suggesting that mIL-4 was involved. Intercrossing hIL-4Ralpha Tg/mIL-4Ralpha(-/-) mice with mIL-4(-/-)/mIL-13(-/-) mice completely abrogated Type 2 responses in N. brasiliensis infections. Together, these data demonstrate that mIL-4 triggered the hIL-4Ralpha/mgammac chimeric receptor in vivo. PMID:18029018

Myburgh, Elmarie; Horsnell, William G C; Cutler, Antony J; Arendse, Berenice; Kubo, Masato; Brombacher, Frank

2008-03-01

464

Causative mechanisms for the occurrence of a triple layered mesospheric inversion event over low latitudes  

NASA Astrophysics Data System (ADS)

temperature profile obtained from the space borne instrument "Sounding of Atmosphere by Broadband Emission Radiometry" instrument onboard "Thermosphere Ionosphere Mesosphere Energetics and Dynamics" shows a triple layered mesospheric inversion event on the night of 23 September 2011, when there is an overpass near the low-latitude sites Gadanki (13.5°N, 79.2°E) and Tirunelveli (8.7°N, 77.8°E). The three mesospheric inversion layers (MILs) are formed in the height region around ~70 (lower), ~80 (middle), and ~90 km (upper) with amplitudes ~11, ~44, and ~109 K and thickness of 3.4, 4.9, and 6.6 km, respectively. The formation of the lower and middle MILs can only be observed in the Rayleigh lidar temperature profiles over Gadanki due to upper height limitation of the system. Nearly all the dominant causative mechanisms are examined for the occurrence of the MIL event. The lower MIL at ~70 km is inferred to be due to planetary wave dissipation, as there is a sudden decrease of planetary wave activity above 70 km. Further, it is demonstrated that the middle MIL at ~80 km is due to the turbulence generated by gravity wave breaking which is in turn due to gravity wave-semi-diurnal tidal interaction, though the height of the middle MIL descends at the rate of ~1 km/h, which is nearly the vertical phase speed of diurnal tide, whereas the upper MIL at above 90 km is due to the large chemical heating rate (~45 K/day) generated by the dominant exothermic reaction O + O + M ? O2 + M.

Ramesh, K.; Sridharan, S.; Vijaya Bhaskara Rao, S.

2014-05-01

465

Exploring and exploiting dynamic noncovalent chemistry for effective surface modification of nanoscale metal-organic frameworks.  

PubMed

Surface properties determine, to a great extent, the biologically relevant functions of various kinds of nanosized materials. Although the modification of the surface of traditional inorganic or polymeric nanoparticles can be routinely achieved through covalent or noncovalent manner or both, the surface modification of nanoscale metal-organic frameworks (nano-MOFs) is extremely challenging because of their rapid degradation in aqueous environments. In this work, we systematically studied the synergistic and dynamic noncovalent interactions between fluorescent probes and iron(III) carboxylate nano-MOFs (i.e., MIL-101-NH2 (Fe), one of the most prevalent MOFs used in drug delivery and imaging). We further examined the interplay between the surface binding of fluorescent probes and the degradation of MIL-101-NH2 (Fe) in aqueous medium. It was demonstrated that the surface binding of probes is not only of high affinity but also dynamic and nonsheddable, even during the degradation, a feature that is essentially different from the covalent conjugation. Subsequently, we developed a unique and straightforward strategy for the surface modification of MIL-101-NH2 (Fe) with polymer by exploiting the synergy of noncovalent interactions between functionalized copolymers and MIL-101-NH2 (Fe). We demonstrated that the binding of polymers onto MIL-101-NH2 (Fe) surface was very effective in aqueous solution and surprisingly nonsheddable during the process of degradation. Surface polymers can creep on the surface of MIL-101-NH2 (Fe), in a dynamic and real-time manner, to the new sites formed immediately after the degradation. In addition, the stability of MIL-101-NH2 (Fe) particles in aqueous environments can be improved to some extent by the surface polymer coating. The results presented herein constitute an important innovation for surface engineering of nano-MOFs, which would benefit the application of nano-MOFs as delivery systems in aqueous systems. PMID:24697674

Liu, Shuo; Zhai, Linxiang; Li, Chunxiang; Li, Yujie; Guo, Xiangqun; Zhao, Yibing; Wu, Chuanliu

2014-04-23

466

14C as a tracer of labile organic matter in Antarctic benthic food webs  

NASA Astrophysics Data System (ADS)

14C measurements were made on surface plankton, particle-trap material, surface sediment, benthic invertebrate gut contents, and body tissue samples to assess the effectiveness of this radioisotope as a tracer of labile organic carbon in Antarctic benthic food webs. Samples were collected on five cruises to the West Antarctic Peninsula (WAP) shelf between November 1999 and March 2001 as part of the Food for Benthos on the ANtarctic Continental-Shelf (FOODBANCS) Project. The 14C contents of the body tissues from a variety of deposit feeders (-126±13 per mil) were substantially enriched relative to the surface sediment (-234±13 per mil) and statistically similar to the organic matter collected in plankton tows (-135±10 per mil), indicating that recently produced marine plankton are the primary source of nutrition for these deposit feeders on the West Antarctic shelf. Selective ingestion was the primary feeding strategy used by echiuran worms and certain holothurians (i.e. Peniagone vignoni) for incorporating labile organic carbon into their tissues as demonstrated by the large differences (105±13 per mil) between surface sediment and gut content 14C activities. In contrast, digestive and/or assimilatory selection was the predominant strategy used by an irregular urchin ( Amphipneustes lorioli) and several other holothurians ( Protelpidia murrayi, Bathyplotes fuscivinculum and the head-down conveyor belt feeder, Molpadia musculus), as demonstrated by large differences (42±7 per mil) between the 14C activities of their foregut or whole-gut organic contents and their body tissues. Despite large fluctuations in carbon export from the euphotic zone, benthic feeding strategies remained essentially constant over the 15-month sampling period. No seasonal variation was evident in either the 14C abundance of the deposit-feeder body tissues, or in the 14C abundance of their gut contents. The mean 14C abundance in the body tissues of the two sub-surface deposit feeders ( A. lorioli and M. musculus; mean=-136.2±8.5 per mil) was distinct ( p=0.0008) from the mean 14C abundance in the body tissues of the four surface deposit feeders (echiuran worm, P. vignoni, P. murrayi, and B. fusciviculum; -122.6±12.3 per mil). The mean 14C abundance of the gut contents from the sub-surface deposit feeders (-178.0±18.6 per mil) also was significantly depleted ( p=0.0009) relative to that of the surface deposit feeders (-149.5±26.6 per mil). The 14C measurements proved to be a much more sensitive tracer for tracking labile organic carbon during ingestive and assimilatory processes than the stable isotopes of carbon or nitrogen.

Purinton, Brett L.; DeMaster, David J.; Thomas, Carrie J.; Smith, Craig R.

2008-11-01

467

Metal organic framework-organic polymer monolith stationary phases for capillary electrochromatography and nano-liquid chromatography.  

PubMed

In this study, metal organic framework (MOF)-organic polymer monoliths prepared via a 5-min microwave-assisted polymerization of ethylene dimethacrylate (EDMA), butyl methacrylate (BMA), and 2-acrylamido-2-methylpropane sulfonic acid (AMPS) with the addition of various weight percentages (30-60%) of porous MOF (MIL-101(Cr)) were developed as stationary phases for capillary electrochromatography (CEC) and nano-liquid chromatography (nano-LC). Powder X-ray diffraction (PXRD) patterns and nitrogen adsorption/desorption isotherms of these MOF-organic polymer monoliths showed the presence of the inherent characteristic peaks and the nano-sized pores of MIL-101(Cr), which confirmed an unaltered crystalline MIL-101(Cr) skeleton after synthesis; while energy dispersive spectrometer (EDS) and micro-FT-IR spectra suggested homogenous distribution of MIL-101(Cr) in the MIL-101(Cr)-poly(BMA-EDMA) monoliths. This hybrid MOF-polymer column demonstrated high permeability, with almost 800-fold increase compared to MOF packed column, and efficient separation of various analytes (xylene, chlorotoluene, cymene, aromatic acids, polycyclic aromatic hydrocarbons and trypsin digested BSA peptides) either in CEC or nano-LC. This work demonstrated high potentials for MOF-organic polymer monolith as stationary phase in miniaturized chromatography for the first time. PMID:23663677

Huang, Hsi-Ya; Lin, Cheng-Lan; Wu, Cheng-You; Cheng, Yi-Jie; Lin, Chia-Her

2013-05-24

468

Lubricant evaluation and performance. Final technical report, January 1987-June 1988  

SciTech Connect

This effort involved the development of improved methods for defining and measuring turbine engine lubricant performance and the development of improved techniques for lubricant monitoring, lubrication system health monitoring, investigating antiwear characteristics and load carrying capacities of lubricants. In Task I, Arrhenius plots were developed for describing the effective life of MIL L 7808, MIL-L-23699 and 4 cSt viscosity candidate lubricants as a function of time and temperature for selected limiting values of changes in physical and chemical properties. In Task II, significant improvement in AE spectrometer sensitivity for analyzing wear metal particles was achieved when using a cup-tip electrode with the reversible polarity pin stand. In Task III, the COBRA, a dielectric constant (DC) tester and a dielectric breakdown strength device were evaluated as lubricant monitoring devices. In Tasks IV and V, an assessment of the literature on lubricant load carrying capacity (LCC) test methods was made. In Task VI, a software system was developed and implemented on the Zenith Z-100 microcomputer for storage, retrieval and correlation of MIL-L-7808 lubricant qualification data. In Task VII, the remaining useful life of a lubricant evaluation rig (RULLER) was developed for MIL-L-7808 and MIL-L-23699 type lubricants and was based on reductive cyclic voltammetry. (FR)

Saba, C.S.; Smith, H.A.; Keller, M.A.; Kauffman, R.E.; Jain, V.K.

1989-04-01

469

A similarity-based classification framework for multiple-instance learning.  

PubMed

Multiple-instance learning (MIL) is a generalization of supervised learning that attempts to learn useful information from bags of instances. In MIL, the true labels of instances in positive bags are not available for training. This leads to a critical challenge, namely, handling the instances of which the labels are ambiguous (ambiguous instances). To deal with these ambiguous instances, we propose a novel MIL approach, called similarity-based multiple-instance learning (SMILE). Instead of eliminating a number of ambiguous instances in positive bags from training the classifier, as done in some previous MIL works, SMILE explicitly deals with the ambiguous instances by considering their similarity to the positive class and the negative class. Specifically, a subset of instances is selected from positive bags as the positive candidates and the remaining ambiguous instances are associated with two similarity weights, representing the similarity to the positive class and the negative class, respectively. The ambiguous instances, together with their similarity weights, are thereafter incorporated into the learning phase to build an extended SVM-based predictive classifier. A heuristic framework is employed to update the positive candidates and the similarity weights for refining the classification boundary. Experiments on real-world datasets show that SMILE demonstrates highly competitive classification accuracy and shows less sensitivity to labeling noise than the existing MIL methods. PMID:23757564

Xiao, Yanshan; Liu, Bo; Hao, Zhifeng; Cao, Longbing

2014-04-01

470

Dominance of chemical heating over dynamics in causing a few large mesospheric inversion layer events during January-February 2011  

NASA Astrophysics Data System (ADS)

mesospheric temperature information obtained by Rayleigh lidar observations over Gadanki (13.5°N, 79.2°E) and temperature, chemical constituents, and their exothermic chemical reaction heating rates obtained by Sounding of Atmosphere by Broadband Emission Radiometry instrument onboard Thermosphere Ionosphere Mesosphere Energetics and Dynamics satellite over and near to Gadanki location, the dominant role of chemical heating for the occurrence of a few large mesospheric inversion layer (MIL) events during January-February 2011 is demonstrated. The heating rates due to exothermic chemical reactions among atomic oxygen (O), atomic hydrogen (H), molecular oxygen (O2), ozone (O3), and hydroxyl (OH) species are the key factors involved in the MIL formation. As relatively larger (lower) ozone mixing ratios are observed at the top (bottom) of the inversion layers, large heating rate (~ 15 K/day) is found to occur between 80 and 85 km due to the exothermic reaction between atomic hydrogen and ozone H + O3 ? OH + O2, which dominates all other important exothermic chemical reactions during these MIL events, and the large volume emission rates of energy of O2 and OH are found to be mostly due to the reaction between H and O3. It is also demonstrated that dynamics plays a negligible role in the formation of these MILs as conditions for the convective and dynamic instability are found to be not satisfied during these MIL events.

Ramesh, K.; Sridharan, S.; Vijaya Bhaskara Rao, S.

2013-10-01

471

Water and carbon in rusty lunar rock 66095  

USGS Publications Warehouse

Lunar rock 66095 contains a hydrated iron oxide and has an unusual amount of water for a lunar rock (140 to 750 parts per million), 90 percent of which is released below 690??C. The ??D of water released at these low temperatures varies from -75 to -140 per mil relative to standard mean ocean water (SMOW). The small amount of water released between 690?? and 1300??C has a ??D of about -175 ?? 25 per mil SMOW. These ??D values are not unusual for terrestrial water. The ??18O of water extracted from 110?? to 400??C has a value of + 5 ?? 1 per mil SMOW, similar to the value for lunar silicates from rock 66095 and different from the value of -4 to -22 per mil found for samples of terrestrial rust including samples of rusted meteoritic iron. The amount of carbon varies from 11 to 59 parts per million with a ??13C from -20 to -30 per mil relative to Pee Dee belemnite. Only very small amounts of reduced species (such as hydrogen, carbon monoxide, and methane) were found, in contrast to the analyses of other lunar rocks. Although it is possible that most of the water in the iron oxide (goethite) may be terrestrial in origin or may have exchanged with terrestrial water during sample return and handling, evidence presented herein suggests that this did not happen and that some lunar water may have a ??D that is indistinguishable from that of terrestrial water.

Friedman, I.; Hardcastle, K. G.; Gleason, J. D.

1974-01-01

472

Chimeric anti-CD14 IGG2/4 Hybrid antibodies for therapeutic intervention in pig and human models of inflammation.  

PubMed

CD14 is a key recognition molecule of innate immune responses, interacting with several TLRs. TLR signaling cross-talks extensively with the complement system, and combined CD14 and complement inhibition has been proved effective in attenuating inflammatory responses. Pig models of human diseases have emerged as valuable tools to study therapeutic intervention, but suitable neutralizing Abs are rare. Undesired Fc-mediated functions, such as platelet activation and IL-8 release induced by the porcine CD14-specific clone Mil2, limit further studies. Therefore, an inert human IgG2/IgG4 hybrid C region was chosen for an rMil2. As revealed in ex vivo and in vivo pig experiments, rMil2 inhibited the CD14-mediated proinflammatory cytokine response similar to the original clone, but lacked the undesired Fc-effects, and inflammation was attenuated further by simultaneous complement inhibition. Moreover, rMil2 bound porcine FcRn, a regulator of t1/2 and biodistribution. Thus, rMil2, particularly combined with complement inhibitors, should be well suited for in vivo studies using porcine models of diseases, such as sepsis and ischemia-reperfusion injury. Similarly, the recombinant anti-human CD14 IgG2/4 Ab, r18D11, was generated with greatly reduced Fc-mediated effects and preserved inhibitory function ex vivo. Such Abs might be drug candidates for the treatment of innate immunity-mediated human diseases. PMID:24062486

Lau, Corinna; Gunnarsen, Kristin S; Høydahl, Lene S; Andersen, Jan Terje; Berntzen, Gøril; Pharo, Anne; Lindstad, Julie K; Ludviksen, Judith K; Brekke, Ole-Lars; Barratt-Due, Andreas; Nielsen, Erik Waage; Stokes, Christopher R; Espevik, Terje; Sandlie, Inger; Mollnes, Tom Eirik

2013-11-01

473

Immobilizing Highly Catalytically Active Pt Nanoparticles inside the Pores of Metal-Organic Framework: A Double Solvents Approach  

SciTech Connect

Ultrafine Pt nanoparticles were successfully immobilized inside the pores of a metal-organic framework MIL-101 without deposition of Pt nanoparticles on the external surfaces of framework by using a 'double solvents' method. The resulting Pt@MIL-101 composites with different Pt loadings represent the first highly active MOF-immobilized metal nanocatalysts for catalytic reactions in all three phases: liquid-phase ammonia borane hydrolysis; solid-phase ammonia borane thermal dehy-drogenation and gas-phase CO oxidation. The observed excellent catalytic performances are at-tributed to the small Pt nanoparticles within the pores of MIL-101. 'We are thankful to AIST and METI for financial support. TA & AK are thankful for support from the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. PNNL is operated by Battelle.'

Aijaz, Arshad; Karkamkar, Abhijeet J.; Choi, Young Joon; Tsumori, Nobuko; Ronnebro, Ewa; Autrey, Thomas; Shioyama, Hiroshi; Xu, Qiang

2012-08-29

474

Anisotropic Elastic Properties of Flexible Metal-Organic Frameworks: How Soft are Soft Porous Crystals?  

NASA Astrophysics Data System (ADS)

We performed ab initio calculations of the elastic constants of five flexible metal-organic frameworks (MOFs): MIL-53(Al), MIL-53(Ga), MIL-47, and the square and lozenge structures of DMOF-1. Tensorial analysis of the elastic constants reveals a highly anisotropic elastic behavior, some deformation directions exhibiting very low Young’s modulus and shear modulus. This anisotropy can reach a 400?1 ratio between the most rigid and weakest directions, in stark contrast to the case of nonflexible MOFs such as MOF-5 and ZIF-8. In addition, we show that flexible MOFs can display extremely large negative linear compressibility. These results uncover the microscopic roots of stimuli-induced structural transitions in flexible MOFs, by linking the local elastic behavior of the material and its multistability.

Ortiz, Aurélie U.; Boutin, Anne; Fuchs, Alain H.; Coudert, François-Xavier

2012-11-01

475

Carbon isotopic evidence for methane hydrate instability during quaternary interstadials  

PubMed

Large (about 5 per mil) millennial-scale benthic foraminiferal carbon isotopic oscillations in the Santa Barbara Basin during the last 60,000 years reflect widespread shoaling of sedimentary methane gradients and increased outgassing from gas hydrate dissociation during interstadials. Furthermore, several large, brief, negative excursions (up to -6 per mil) coinciding with smaller shifts (up to -3 per mil) in depth-stratified planktonic foraminiferal species indicate massive releases of methane from basin sediments. Gas hydrate stability was modulated by intermediate-water temperature changes induced by switches in thermohaline circulation. These oscillations were likely widespread along the California margin and elsewhere, affecting gas hydrate instability and contributing to millennial-scale atmospheric methane oscillations. PMID:10753115

Kennett; Cannariato; Hendy; Behl

2000-04-01

476

Effect of NH2 and CF3 functionalization on the hydrogen sorption properties of MOFs.  

PubMed

The hydrogen adsorption capacity and heat of adsorption at 77 K have been evaluated for several porous metal terephthalate MOFs (MIL-53(Fe), MIL-125(Ti) and UiO-66(Zr)), as well as in their -NH(2) and -(CF(3))(2) functionalized isoreticular structures. The capacity of hydrogen is basically related to the textural properties of the solids and not to their composition. The heats of adsorption at low coverage are on the whole close to those usually reported for MOFs (6-7 kJ mol(-1)), except for the UiO-66(Zr) and MIL-53(Fe)-(CF(3))(2) analogues, whereas the presence of Lewis acid sites and/or a confinement effect enhances significantly the strength of interaction with hydrogen. PMID:21431158

Zlotea, Claudia; Phanon, Delphine; Mazaj, Matjaz; Heurtaux, Daniela; Guillerm, Vincent; Serre, Christian; Horcajada, Patricia; Devic, Thomas; Magnier, Emmanuel; Cuevas, Fermin; Férey, Gérard; Llewellyn, Philip L; Latroche, Michel

2011-05-14

477

Pharmacological modulation of rat monocytes: in vivo effects on Ia expression and interleukin-1 production.  

PubMed

We have shown that during the developing phase of adjuvant disease (AD) in rats the expression of MHC class II (Ia) antigens on blood monocytes (BM) was enhanced. The results of a study in established AD are reported now. Four agents were tested: indomethacin and diclofenac-sodium (1 mg/kg/day); levamisole and prinomide (10 mg/kg/day), administered orally from day 18-31 after induction of AD. We assessed the following BM parameters: Ia expression, interleukin-1 (sIL-1) production, and membrane bound IL-1 (mIL-1). In AD Ia expression was enhanced, no changes occurred in mIL-1 or sIL-1. Indomethacin treatment reduced sIL-1 production, levamisole Ia expression and mIL-1 activity, prinomide all three parameters measured and diclofenac, though clinically effective, none. PMID:1793054

Schenkelaars, E J; Singh, H N; Goldberg, R L; Doughty, J R; Peppard, J; DiPasquale, G; Quagliata, F

1991-09-01

478

Solar cell and array standardization for Air Force spacecraft  

NASA Astrophysics Data System (ADS)

Efforts have been in progress to evaluate and to accomplish solar cell and array standardization for Air Force spacecraft. Analysis results indicate that the array area and weight penalties that typically would be involved in the use of a standard solar cell module would be less than 10%. The potential payoff of standardization is cost savings to the Air Force and improved solar array reliability. Cost experience data from NASA are used to show that large savings over a 12-year period might be possible. An attempt is being made to standardize procurement practices at the power system and solar array levels and to standardize hardware at the solar cell level. Three documents have been prepared as part of this effort: a military standard for the design of space vehicles dc power systems (MIL-STD-1539), a military specification for solar arrays (MIL-S-XXXXX), and a military specification for solar cells (MIL-C-83443).

Killian, H. J.; Wade, E.; Wise, J. F.; Sampson, H. T.

1974-07-01

479

Atmosphere-surface interactions on Mars: delta 17O measurements of carbonate from ALH 84001.  

PubMed

Oxygen isotope measurements of carbonate from martian meteorite ALH 84001 (delta18O = 18.3 +/- 0.4 per mil, delta17O = 10.3 +/- 0.2 per mil, and Delta17O = 0.8 +/- 0.05 per mil) are fractionated with respect to those of silicate minerals. These measurements support the existence of two oxygen isotope reservoirs (the atmosphere and the silicate planet) on Mars at the time of carbonate growth. The cause of the atmospheric oxygen isotope anomaly may be exchange between CO2 and O(1D) produced by the photodecomposition of ozone. Atmospheric oxygen isotope compositions may be transferred to carbonate minerals by CO2-H2O exchange and mineral growth. A sink of 17O-depleted oxygen, as required by mass balance, may exist in the planetary regolith. PMID:9616116

Farquhar, J; Thiemens, M H; Jackson, T

1998-06-01

480

Partial agonist/antagonist mouse interleukin-2 proteins indicate that a third component of the receptor complex functions in signal transduction.  

PubMed Central

Some mouse interleukin-2 (mIL-2) proteins with substitutions at residue Gln141 are unable to trigger a maximal biological response. The Asp141 protein induces the lowest maximal response. The Asp141 protein can weakly antagonize the biological activity of mIL-2 and strongly antagonizes the biological activity of active mIL-2 mutant proteins that have defects in interactions with the high affinity receptor. Residue 141 mutant proteins bind with reduced affinity to T cells expressing the high affinity IL-2 receptor, yet bind normally to transfected fibroblasts expressing only the alpha and beta chains of the receptor. These results suggest that a third receptor component is important for both binding and signal transduction.

Zurawski, S M; Imler, J L; Zurawski, G

1990-01-01

481

Corrosion resistance of inconel 690 to borax, boric acid, and boron nitride at 1100{degrees}C  

SciTech Connect

Significant general and localized corrosion was observed on Inconel 690 coupons following exposure to borax, boric acid and boron nitride at 1100{degrees}C. Severe localized attack at and below the melt line was observed on coupons exposed to borax. An intergranular attack at and below the melt line was observed on coupons exposed to borax. An intergranular attack (IGA) of the Inconel 690 was also observed. Severe internal void formation and IGA (30 mils penetration after 3 days) was observed in the coupon exposed to boric acid. Both borax and boric acid remove the protective chromium oxide; however, this layer can be reestablished by heating the Inconel 690 to 975 {degrees}C in air for several hours. Inconel 690 in direct contact with boron nitride resulted in the formation of a thick chromium borate layer, a general corrosion rate of 50 to 90 mils per year, and internal void formation of 1 mil per day.

Imrich, K.J.

1996-12-12

482

Effects of initial delamination on CIc and GIth values from glass/epoxy double cantilever beam tests  

NASA Technical Reports Server (NTRS)

The effect of insert thickness and method of precracking on mode I interlaminar fracture toughness, GIc, and delamination fatigue threshold, GIth, values were determined for a glass/epoxy double cantilever beam specimen. The results of the static tests showed that precracking in tension would cause fiber bridging and thus may yield unconservative values of GIc and GIth. Precracking in shear yields suitable values of GIc but overly conservative values of GIth. For the glass/epoxy composite used, an insert thickness of 0.5 mil was most suitable for determining GIc and GIth values, although an insert thickness up to 3 mil was acceptable. Inserts thicker than 3 mil were not acceptable for determining GIc and GIth values.

Martin, Roderick H.

1988-01-01

483

Nitrogen isotope fractionations in the Fischer-Tropsch synthesis and in the Miller-Urey reaction  

NASA Technical Reports Server (NTRS)

Nitrogen isotope fractionations have been measured in Fischer-Tropsch and Miller-Urey reactions in order to determine whether these processes can account for the large N-15/N-14 ratios found in organic matter in carbonaceous chondrites. Polymeric material formed in the Fischer-Tropsch reaction was enriched in N-15 by only 3 per mil relative to the starting material (NH3). The N-15 enrichment in polymers from the Miller-Urey reaction was 10-12 per mil. Both of these fractionations are small compared to the 80-90 per mil differences observed between enstatite chondrites and carbonaceous chondrites. These large differences are apparently due to temporal or spatial variations in the isotopic composition of nitrogen in the solar nebula, rather than to fractionation during the production of organic compounds.

King, C.-C.; Clayton, R. N.; Hayatsu, R.; Studier, M. H.

1979-01-01

484

The Miller Range Nakhlites: A Summary of the Curatorial Subdivision of the Main Mass in Light of Newly Found Paired Masses  

NASA Technical Reports Server (NTRS)

The 2003-2004 ANSMET team re-covered a 715.2 g nakhlite from the Miller Range (MIL) region of the Transantarctic Mountains (MIL 03346). This was the first nakhlite for the US Antarctic meteorite program, and after the announcement in 2004 [1], JSC received over 50 requests for this sample for the Fall 2004 Meteorite Working Group meeting. Since then it has been subdivided into >200 splits, and distributed to approx.70 scientists around the world for study. The 2009-2010 ANSMET team recovered three additional masses of this nakhlite [2], making the total amount of mass 1.871 kg (Table 1). Given that the original find (MIL 03346) has been heavily studied and these new masses are available, we will present a comprehensive overview of the subdivision of the original mass as well as the scientific findings to date.

Righter, Kevin; McBridge, K. M.

2011-01-01

485

Ar-39 - Ar-40 Evidence for an Approximately 4.26 Ga Impact Heating Event on the LL Parent Body  

NASA Technical Reports Server (NTRS)

Miller Range 99301 is a type 6, unbrecciated LL chondrite. MIL 99301 is of interest because some compositional and petrographic features suggest it experienced rather high shock grades, whereas other features suggest it is relatively unshocked. Inconsistent shock indicators could be explained if MIL 99301 was shocked but then partly annealed by heat produced by impacts on the parent body. The hypothesis that MIL 99301 experienced high temperature metamorphism (type 6) followed by a later shock event that heated, but did not melt, the constituent feldspar can be evaluated using (39)Ar-(40)Ar chronology. This is because (39)Ar-(40)Ar ages of shocked ordinary chondrites are generally <4.2 Ga, whereas (39)Ar-(40)Ar ages of unshocked meteorites are generally older, and between 4.52 - 4.38 Ga.

Dixon, E. T.; Bogard, D. D.; Rubin, A. E.

2003-01-01

486

Enhancing activity of N-glycosylation for constitutive proteins secretions in non-polarized cells  

SciTech Connect

Several fusion proteins of mouse Interleukins (mILs) and the enhanced green fluorescent protein (EGFP) were expressed in fibroblast and epithelial cells. Among these proteins, the mIL-31 derivative was the most efficiently secreted into the medium in a N-glycosylation-dependent manner. From the analysis of deletion mutants, the minimal structure for constitutive secretions consisted of a signal peptide and N-glycosylation. Introduction of the signal sequence from mIL-31 to human p53 protein failed to secrete the products, but further addition of the N-glycosylation site resulted in constitutive secretion of biologically active p53 protein into the medium in the N-glycosylated form. In this report, we showed the importance of N-glycosylation for constitutive protein secretions, especially using non-polarized cells.

Akiyama, Nobutake, E-mail: nakiyama@jikei.ac.jp [Department of Molecular Immunology, Institute of DNA medicine, Jikei University, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan)] [Department of Molecular Immunology, Institute of DNA medicine, Jikei University, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan); Ohno, Yuji [Department of Pharmacology, Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan)] [Department of Pharmacology, Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan); Fukuda, Takahiro [Division of Neuropathology, Dept. of Neuroscience, Research Center of Medical Science, The Jikei Univ. Schl. Med., 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461 (Japan)] [Division of Neuropathology, Dept. of Neuroscience, Research Center of Medical Science, The Jikei Univ. Schl. Med., 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461 (Japan); Manome, Yosinobu [Department of Molecular Cell Biology, Institute of DNA medicine, Jikei University, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan)] [Department of Molecular Cell Biology, Institute of DNA medicine, Jikei University, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan); Saito, Saburo [Department of Molecular Immunology, Institute of DNA medicine, Jikei University, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan)] [Department of Molecular Immunology, Institute of DNA medicine, Jikei University, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo 105-8461 (Japan)

2009-04-17

487

Variability in the Mass and Stable Carbon Isotopic Composition of Fossil-Fuel-Derived Carbon Dioxide Emissions for the Countries of the North American Carbon Program  

NASA Astrophysics Data System (ADS)

As we focus more intently on the carbon cycle in North America, the spatial and temporal scales of our observations become more important. The carbon dioxide released from fossil fuel consumption can show large variability in both spatial and temporal scales. This presentation will focus on this variability. We have compiled a data set that contains the monthly emissions of carbon dioxide released from fossil-fuel consumption for the countries of the North American Carbon Program. These data are consistent with the annual emissions as reported by CDIAC. As an example of spatial variability, in August 2000, emissions from Idaho (356 Gg C) and Texas (19,051 Gg C) differed by a factor of 53. As an example of temporal variability, in 1999, emissions from Texas differed by 31% between the months of February (13,807 Gg C) and August (18,107 Gg C). When looking at the stable carbon isotopic composition (del 13 C), variability also exists at these spatial and temporal scales. As an example of spatial variability, in April 1984, emissions from Louisiana (-36.32 per mil) and North Dakota (-25.23 per mil) differed by 11.09 per mil. As an example of temporal variability, in 2002, emissions from Montana differed by 5.22 per mil between the months of July (-28.38 per mil) and December (- 33.60 per mil). Finally, this presentation will also include analysis of the uncertainty associated with these time series. Variations in data collection are such that the uncertainty varies among the three countries of North America and uncertainty increases as the spatial and temporal scales decrease.

Andres, R. J.; Boden, T. A.; Gregg, J. S.; Losey, L.; Marland, G.

2007-12-01

488

Reversal of Substrate Specificity of CMP N-glycosidase to dCMP†,‡  

PubMed Central

MilB is a CMP hydrolase involved in the early steps of biosynthesis of the antifungal compound mildiomycin. An enzyme from the bacimethrin biosynthetic pathway, BcmB, is closely related in both sequence and function to MilB. These two enzymes belong to the nucleoside 2?-deoxyribosyltransferase (NDT) superfamily. NDTs catalyze N-glycosidic bond cleavage of 2?-deoxynucleosides via a covalent 2-deoxyribosyl-enzyme intermediate. Conservation of key active site residues suggests that members of the NDT superfamily share a common mechanism; however, the enzymes differ in their substrate preferences. Substrates vary in the type of nucleobase, the presence or absence of a 2?-hydroxyl group, and the presence or absence of a 5?-phosphate group. We have determined the structures of MilB and BcmB and compared them to previously determined structures of NDT superfamily members. The comparisons reveal how these enzymes differentiate between ribosyl and deoxyribosyl nucleotides or nucleosides, and among different nucleobases. The 1.6 Å structure of the MilB-CMP complex reveals an active site feature that is not obvious from sequence comparisons alone. MilB and BcmB that prefer substrates containing 2?-ribosyl groups have a phenylalanine positioned in the active site whereas NDT family members with preference for 2?-deoxyribosyl groups have a tyrosine residue. Further studies show that the phenylalanine is critical for MilB and BcmB specificity towards CMP, and mutation of this phenylalanine residue to tyrosine results in a 1000-fold reversal of substrate specificity from CMP to dCMP.

Sikowitz, Megan D.; Cooper, Lisa; Begley, Tadhg P.; Kaminski, Pierre Alexandre; Ealick, Steven E.

2013-01-01

489

Engineering evaluation and analysis for the improvement of military standard generators. Volume 2. Final report, 24 February-29 May 1987  

SciTech Connect

Contents include: noise kits for 15- and 30-kW generator sets; Mil-Std generator set towed assemblage; electromagnetic pulse (EMP) analysis on the electromagnetic control system of the Mep-114A 30-kW DED generator set; technical data sheet - solar electric-battery charger; technical data sheet - diesel fuel heater/water separator; Patriot fuel-waxing study of the 15- and 30-kW Mil-Std generator sets; Photos-Regency net (modified 15 kW) sound suppressed generator set towed assemblage; battery charger for EMU-30 generator set.

Adolph, R.J.; Lawrence, L.G.; Perkins, G.W.; Thorwaldson, E.

1987-05-29

490

Thermal barrier coating life prediction model development  

NASA Technical Reports Server (NTRS)

The objective of this program is to establish a methodology to predict Thermal Barrier Coating (TBC) life on gas turbine engine components. The approach involves experimental life measurement coupled with analytical modeling of relevant degradation modes. The coating being studied is a flight qualified two layer system, designated PWA 264, consisting of a nominal ten mil layer of seven percent yttria partially stabilized zirconia plasma deposited over a nominal five mil layer of low pressure plasma deposited NiCoCrAlY. Thermal barrier coating degradation modes being investigated include: thermomechanical fatigue, oxidation, erosion, hot corrosion, and foreign object damage.

Demasi, J. T.; Sheffler, K. D.

1986-01-01

491

Microwave System for Detecting Ice on Aircraft  

NASA Technical Reports Server (NTRS)

A microwave-based system has been developed as a means of detecting ice on aircraft surfaces, with enough sensitivity to provide a warning before the ice accretes to a dangerous thickness. The system can measure the thickness of ice from a few mils (1 mil = 0.0254 mm) to about 1/4 in. (.6 mm) and can distinguish among (1) ice, (2) water (or deicing fluid), and (3) a mixture of ice and water (or deicing fluid). Sensors have been ruggedized to withstand the rain erosion environment.

Joseph, Philip J.; Glynn, Dennis P., Jr.; Joseph, John C.

2004-01-01

492

Post heat treatment effects on double layer metal structures for VLSI applications  

NASA Technical Reports Server (NTRS)

The realization of high yield double layer metal systems using wet chemistry processes and the ability to extend yields beyond that attainable with wet chemistry by means of post sintering processes at temperatures below 500 C for potential applications in very large scale integration structures were studied. Yields in excess of 98% and average total contact resistance of less than 150 ohms and 200 ohms were realized for a series of 560 vias of 0.5 X 0.5 mils and 0.2 X 0.2 mils in size, respectively.

Wade, T. E.; Trotter, J. D.

1978-01-01

493

Characterization of receptors for ciliary neurotrophic factor on rat hippocampal astrocytes  

Microsoft Academic Search

We have identified by Scatchard analysis both high (124 pM, 14.4 ×106 sites\\/?g protein, 7600 sites\\/cell) and low (1.6 nM, 7.7×106 sites\\/?g protein, 4100 sites\\/cell) affinity receptors for [125I]-rat ciliary neurotrophic factor (rCNTF) on astrocytes. Ligand competition studies showed that the binding of [125I]-rCNTF was effectively competed by rCNTF and human CNTF, but not by hLIF, mIL-6 or mIL-1B. Three

Ralph F Alderson; Denise Pearsall; Ronald M Lindsay; Vivien Wong

1999-01-01

494

Program Implements Variable-Sampling Procedures  

NASA Technical Reports Server (NTRS)

MIL-STD-414 Variable Sampling Procedures (M414) computer program developed to automate calculations and acceptance/rejection procedures of MIL-STD-414, "Sampling Procedures and Tables for Inspection by Variables for Percent Defective." M414 automates entire calculation-and-decision process by use of computational algorithms determining threshold acceptability values for lots. Menu-driven and user-friendly. Reduces burden of manual operations, promoting variable-sampling practice in industry in lieu of "go/no-go" inspection. Written in BASIC.

Huang, Zhaofeng

1995-01-01

495

The 200 watts/kilogram solar array conceptual approach study. Phase 2: Assessment report for proof-of-concept experiments and Halley's comet concentrator array  

NASA Technical Reports Server (NTRS)

The activities associated with the fabrication, handling, and testing of 2-mil solar cell modules on a flexible substrate are demonstrated. It is shown that 2-mil solar cells can be reliably handled, welded, and bonded to a Kapton substrate. Flexible Invar interconnects can be used to interconnect individual cells to form modules. These solar cell modules can be temperature cycled, wrapped around a 10-inch diameter drum, and vibrated to the shuttle environment with no significant damage. A bonding technique was developed to physically join adjacent modules that is stronger than the Kapton, itself. Ultraviolet radiation tests were performed on RTV - silicone as a cell cover material - with very encouraging results.

1977-01-01

496

The weight optimization of an armored crashworthy crewseat through the use of advanced composites and design  

NASA Technical Reports Server (NTRS)

The development of composite-related technology applicable to armored crashworthy helicopter crewseats is discussed. The main objective was to achieve a significant weight reduction relative to the first-generation seats exemplified by the UH-60A and the AH-64A designs. This weight reduction was achieved while maintaining full compliance with the most recent version of the military crashworthy crewseat specification, MIL-S-58095A. The technology developed during this effort is intended to apply to the next generation of Army helicopters, such as LHX.

Lindsay, Howard A.; Motoyama, Stephen M.; Smith, Kent F.

1990-01-01

497

Formation of carbonates in the Tatahouine meteorite.  

PubMed

The Tatahouine meteorite, in southern Tunisia, shows terrestrial contamination that developed during 63 years of exposure on Earth's surface. Samples collected on the day of the fall in 1931 contained fractures, with no secondary minerals, whereas samples collected in 1994 contain calcite aggregates (70 to 150 micrometers) and rod-shaped forms (100 to 600 nanometers in length and 70 to 80 nanometers in diameter) on the fractures. Carbon isotope analysis of the carbonates within the Tatahouine meteorite [delta13C = -2.0 per mil Pee Dee belemnite standard (PDB)] and the underlying ground (delta13C = -3.2 per mil PDB) confirm their terrestrial origin. PMID:9545214

Barrat, J A; Gillet, P; Lécuyer, C; Sheppard, S M; Lesourd, M

1998-04-17

498

PAALS - Precision accelerometer alignment and leveling system  

Microsoft Academic Search

A description is given of the precision accelerometer alignment and leveling system (PAALS), a high-performance microcontroller-corrected accelerometer triad that outputs acceleration (ft\\/s2) via MIL-STD-1553BN communications. Combined tight-packaging, high-reliability, and high-performance requirements were the main design drivers. The key system elements are QA-700 accelerometers, an Intel 80C196 microcontroller, custom digital ASIC (application-specific integrated circuit), custom hybrid, and dual redundant MIL-STD-1533B communication

Ron B. Leonardson

1990-01-01

499

PAALS: precision accelerometer alignment and leveling system  

Microsoft Academic Search

A description is given of the precision accelerometer alignment and leveling system (PAALS), a high-performance microcontroller-corrected accelerometer triad that outputs acceleration (ft\\/s2) via MIL-STD-1553BN communications. Combined tight-packaging, high-reliability, and high-performance requirements were the main design drivers. The key system elements are QA-700 Accelerometers, an Intel 80C 196 microcontroller, custom digital ASIC (application-specific integrated circuit), custom hybrid, and dual redundant MIL-STD-1533B

R. B. Leonardson

1990-01-01

500

Biogenic and thermogenic origins of natural gas in Cook Inlet basin, Alaska.  

USGS Publications Warehouse

Two types of natural gas occurences are present. The major reserves (1.8 x 1011m3) occur in shallow (less than 2.300 m), nonassociated dry gas fields that contain methane with del13C in the range of -63 to -56 per mil. These gas fields are in sandstones interbedded with coals, the gas fields are interpreted as biogenic in origin. Lesser reserves of natural gas are associated with oil in the deeper Hemlock Conglomerate at the base of the Tertiary section; associated gas contains methane with del13C of about -46 per mil. These gases are thermogenic in origin.- from Authors

Claypool, G. E.; Threlkeld, C. N.; Magoon, L. B.

1980-01-01