摘要:
A membrane enhanced deionized capacitor (MEDC) device, consisting of insulating plates (6,7) and a series of MEDC unit cells, is provided. The MEDC unit cell includes a cation and anion ion-exchange membranes (2,4), one pair of carbon electrodes (1-1,1-2), a spacer (3) and an insulating holder (5) and is assembled in the order of [(1-1)/(2)/(3)/(5)/(4)/(1-2)]. The cation-exchange membrane combined with one electrode is used as negative electrosorptive electrode while the anion-exchange membrane combined with another electrode is used as positive electrode. Unit cells can be connected with each other in series, or in parallel. The devices can be made as either stack type or roll type.
摘要:
Optical fiber refractive index profile designs having an alpha core profile and a negative index trench to control bend loss, are modified by truncating the edge of the alpha core profile and adding a ledge to the truncated core. The result is low bend loss and preservation of low differential mode delay and high bandwidth.
摘要:
Described is a modular method of making an optical fiber comprising a core and a cladding configured to support and guide a fundamental transverse mode, the cladding including (i) an outer cladding having an index nout less than the index n1 of the core, (ii) an inner cladding having an index n2
摘要:
Methods and systems for attributing changes in an advertising metric of interest, such as revenue, to other advertising metrics, are provided. The methods and systems described herein are particularly applicable to advertising provided in online web sites, such as online internet search provider sites. The changes in one or more subordinate online advertising metrics, such as the number of clicks on a particular advertising link, and the cost-per-click to the advertiser, are measured over a predefined period of time, as are the changes in the advertising metric of interest over the same predefined period of time. The respective impacts of the changes of the are determined through the use of sensitivity analysis.
摘要:
In general, the present disclosure describes techniques for both removing memory buffers from and adding memory buffers to a list (e.g., a linked list) of available buffers, for use by a network device, without locking the list during access. One example method includes allocating a list of memory buffers that are each available for use by multiple modules executed within the network device, wherein the list includes a first end and a second, opposite end, and removing a first memory buffer from the first end of the list by a first module of the multiple modules without locking the list. The method further includes adding the first memory buffer to the second end of the list by a second module of the multiple modules without locking the list.
摘要:
Optical fiber comprises core and a cladding configured to support and guide a fundamental transverse mode, the cladding including (i) an outer cladding having an index nout less than the index n1 of the core, (ii) an inner cladding having an index n2
摘要:
A membrane enhanced deionized capacitor (MEDC) device, consisting of insulating plates (6,7) and a series of MEDC unit cells, is provided. The MEDC unit cell includes a cation and anion ion-exchange membranes (2,4), one pair of carbon electrodes (1-1,1-2), a spacer (3) and an insulating holder (5) and is assembled in the order of [(1-1)/(2)/(3)/(5)/(4)/(1-2)]. The cation-exchange membrane combined with one electrode is used as negative electrosorptive electrode while the anion-exchange membrane combined with another electrode is used as positive electrode. Unit cells can be connected with each other in series, or in parallel. The devices can be made as either stack type or roll type.
摘要:
Novel methods for biological effective, stable amorphous and monoclinic selenium nanoparticles are disclosed. They are prepared by reacting selenium source with a reducing agent or an oxidative agent in an aqueous media at a temperature between 0-100° C. in the presence of selenium binding polymer molecules such as poly/oligopeptide acids or peptone or nucleic acids or poly/oligosaccharide or their mixtures.
摘要:
Optical fiber refractive index profile designs having an alpha core profile and a negative index trench to control bend loss, are modified by truncating the edge of the alpha core profile and adding a ledge to the truncated core. The result is low bend loss and preservation of low differential mode delay and high bandwidth.