Results 201 to 210 of about 164,689 (235)
Some of the next articles are maybe not open access.
MWW-Type Zeolites: MCM-22, MCM-36, MCM-49, and MCM-56 (A Review)
Petroleum Chemistry, 2019This review presents an analysis of the structure, synthesis, and physicochemical properties of zeolites of the MWW structural type. Various physicochemical characteristics of zeolites MCM-22, MCM-36, MCM-49, and MCM-56 (X-ray diffraction data, textural characteristics, morphology, IR and NMR data) have been discussed and compared, and their ...
V. A. Ostroumova, A. L. Maksimov
openaire +1 more source
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference, 2010
Clustering techniques are proposed for developing performance of wireless sensor networks from several points of view. Multimedia nodes have different sensing region than scalar sensors that usually sense a circle or polygon regions centred by the node, and thus traditional clustering methods do not satisfy a Wireless Multimedia Sensor Network (WMSN ...
Mohammad Alaei, Jose M. Barcelo-Ordinas
openaire +1 more source
Clustering techniques are proposed for developing performance of wireless sensor networks from several points of view. Multimedia nodes have different sensing region than scalar sensors that usually sense a circle or polygon regions centred by the node, and thus traditional clustering methods do not satisfy a Wireless Multimedia Sensor Network (WMSN ...
Mohammad Alaei, Jose M. Barcelo-Ordinas
openaire +1 more source
Metastability of MCM-41 and Al-MCM-41
The Journal of Physical Chemistry A, 2008The apparent stability of MCM-41 and Al-MCM-41 in water was appraised in a series of solubility experiments. MCM-41 is a siliceous, mesoporous material of hexagonal symmetry and exceptionally high surface area first synthesized in 1992. The dissolution experiments were carried out at several solid/water ratios: 1/200, 1/100, and 1/75. Results indicated
Colin P, Guthrie, Eric J, Reardon
openaire +2 more sources
Design tradeoffs among MCM-C, MCM-D and MCM-D/C technologies
IEEE Transactions on Components, Packaging, and Manufacturing Technology: Part B, 1994The paper describes tradeoffs in electrical performance, wiring density and cost for MCM-C, MCM-D and MCM-D/C technologies. The thin and thick film interconnection media are compared with their associated pros and cons in terms of performance and cost. >
A. Iqbal +3 more
openaire +1 more source
Proceedings of the 44th Annual International Symposium on Computer Architecture, 2017
Historically, improvements in GPU-based high performance computing have been tightly coupled to transistor scaling. As Moore's law slows down, and the number of transistors per die no longer grows at historical rates, the performance curve of single monolithic GPUs will ultimately plateau. However, the need for higher performing GPUs continues to exist
Akhil Arunkumar +8 more
openaire +1 more source
Historically, improvements in GPU-based high performance computing have been tightly coupled to transistor scaling. As Moore's law slows down, and the number of transistors per die no longer grows at historical rates, the performance curve of single monolithic GPUs will ultimately plateau. However, the need for higher performing GPUs continues to exist
Akhil Arunkumar +8 more
openaire +1 more source
Mcm-L Product Development Process for Low-Cost Mcms
Proceedings of the International Conference on Multichip Modules, 1995System size and cost reduction are often the largest factors for interest in commercial MCMs. Performance improvement is generally of secondary interest. Development and qualification can add significantly to the total cost of an MCM, so in addition to the normal desire to provide reliable products, the cost of doing so has gained increased importance.
openaire +1 more source
Rapid prototyping MCMs with MCM-CF technology
1995 Proceedings. 45th Electronic Components and Technology Conference, 2002Rapid implementation of an MCM provides the most timely and efficient way of validating a circuit design concept in a few weeks. It uses MCM-CF technology, the diffusion patterning multilayer thick film technology, to support early prototyping efforts for demonstrating design validity.
openaire +1 more source
Synthesis of mesoporous manganosilicates: Mn-MCM-41, Mn-MCM-48 and Mn-MCM-L
Journal of the Chemical Society, Chemical Communications, 1995Mesoporous manganosilicate materials Mn-M41S, having hexagonal, cubic and lamellar structures, are synthesized with a low surfactant: Si ratio (0.12 : 1) at various temperatures and acid/base contents and are characterized by X-ray powder diffraction and Q-band EPR spectroscopy.
Dongyuan Zhao, Daniella Goldfarb
openaire +1 more source
Static crystallization of zeolites MCM-22 and MCM-49
Microporous and Mesoporous Materials, 1999Abstract Zeolites MCM-22 and MCM-49, with SiO 2 /Al 2 O 3 molar ratios (SARs) of 30 and 50, were prepared under static conditions using silica, sodium aluminate and hexamethyleneimine. An aging step before the hydrothermal treatment made it possible to obtain good-quality MCM-22 under these reaction conditions.
Ana Lucia Santos Marques +2 more
openaire +1 more source
Preparation of Al-MCM-48 and Ti-MCM-48
Applied Mechanics and Materials, 2014In system of cetyltrimethylammonium bromide (CTAB), tetraethyl orthosilicate (TEOS) and sodium hydroxide, the mesoporous sieves MCM-48 with hetero atom could be synthesized by adding different aluminum and titanium sources. The results showed that M41S family of hexagonal (MCM-41), cubic (MCM-48) and lamellar phase (MCM-50) could be synthesized ...
Zhi Xi Zhao, Li Ming Zhang, Ping Chen
openaire +1 more source