摘要:
There is provided a method of context aware data-centric storage for dynamically changing a data storage range comprising: collecting data from entire sensor nodes, after establishing a data storage range of an entire sensor network, dividing areas, and transmitting a message of data storage range information to the entire sensor nodes by a base station; storing the collected data in a storage sensor node by determining whether there is a node responsible for storing the collected data to carry out operation depending on the determination result; determining whether the data storage has not been carried out for a period of time longer than a specified time in each sensor node after storing the data; and to determining whether the scale of invalid range is not smaller than Γ.
摘要:
Provided are a phosphor, a phosphor manufacturing method, and a white light emitting device. The phosphor is represented as a chemical formula of aMO-bAlN-cSi3N4, which uses light having a peak wavelength in a wavelength band of about 350 nm to about 480 nm as an excitation source to emit visible light having a peak wavelength in a wavelength band of about 480 nm to about 680 nm. (where M is one selected from alkaline earth metals (0.2≦a/(a+b)≦0.9, 0.05≦b(b+c)0.85, 0.4≦c/(c+a)≦0.9))
摘要翻译:提供荧光体,荧光体制造方法和白色发光装置。 荧光体表示为aMO-bAlN-cSi3N4的化学式,其使用波长范围为约350nm至约480nm的峰值波长的光作为激发源发射具有波长带中的峰值波长的可见光 约480nm至约680nm。 (其中M是选自碱土金属(0.2和nlE; a /(a + b)≦̸ 0.9,0.05& nlE; b(b + c)0.85,0.4& nlE; c /(c + a)≦̸ 0.9) )
摘要:
Provided are a phosphor, a phosphor manufacturing method, and a white light emitting device. The phosphor is represented as a chemical formula of MaSibOcNd:Eu, which uses light having a peak wavelength in a wavelength band of about 350 nm to about 480 nm as an excitation source to emit light having one of a green wavelength, a yellow wavelength, and a red wavelength as a peak wavelength in a wavelength band of about 480 nm to about 680 nm (where M is at least one or more alkaline earth metals selected from a group consisting of Ra, Ba, Sr, Ca, Mg, and Be (1≦a≦7, 2≦b≦13, 1≦c≦18, and 0
摘要:
Provided are a phosphor, a phosphor manufacturing method, and a white light emitting device. The phosphor is represented as a chemical formula of aMO-bAl2O3-cSi3N4, which uses light having a peak wavelength in a wavelength band of about 350 nm to about 480 nm as an excitation source to emit visible light having a peak wavelength in a wavelength band of about 480 nm to about 680 nm. (where M is one kind or two kinds of elements selected from Mg, Ca, Sr, and Ba (0.2≦a/(a+b)≦0.9, 0.05≦b/(b+c)≦0.85, 0.4≦c/(c+a)≦0.9))
摘要翻译:提供荧光体,荧光体制造方法和白色发光装置。 磷光体表示为aO-bAl 2 O 3 -cSi 3 N 4的化学式,其使用在约350nm至约480nm的波长带内具有峰值波长的光作为激发源发射具有波长带中的峰值波长的可见光 约480nm至约680nm。 (其中M是选自Mg,Ca,Sr和Ba中的一种或两种元素(0.2& nlE; a /(a + b)≦̸ 0.9,0.05& lE; b /(b + c)≦̸ 0.4≦̸ c /(c + a)≦̸ 0.9))
摘要:
The present invention relates to a phosphor for a plasma display panel and a method for producing the same. The phosphor is formed by coating a metallic oxide having a high polarity to a surface of a green phosphor Zn2SiO4:Mn with a thickness 10 nm to 0.5 μm. The concentration of a metallic oxide is in a range of 1 to 50 weight % with respect to the green phosphor. According to the green phosphor for the plasma display panel of the present invention, which is made with coating, a metallic oxide having a positive polarity to a surface of a phosphor can be adjusted, thereby enhancing the discharge characteristics when the panel is driven.
摘要:
Provided are a phosphor, a phosphor manufacturing method, and a white light emitting device. The phosphor is represented as a chemical formula of aMO-bAl2O3-cSi3N4, which uses light having a peak wavelength in a wavelength band of about 350 nm to about 480 nm as an excitation source to emit visible light having a peak wavelength in a wavelength band of about 480 nm to about 680 nm (where M is one kind or two kinds of elements selected from Mg, Ca, Sr, and Ba (0.2≦a/(a+b)≦0.9, 0.05≦b/(b+c)≦0.85, 0.4≦c/(c+a)≦0.9)).
摘要:
There is provided a method of context aware data-centric storage for dynamically changing a data storage range comprising: collecting data from entire sensor nodes, after establishing a data storage range of an entire sensor network, dividing areas, and transmitting a message of data storage range information to the entire sensor nodes by a base station; storing the collected data in a storage sensor node by determining whether there is a node responsible for storing the collected data to carry out operation depending on the determination result; determining whether the data storage has not been carried out for a period of time longer than a specified time in each sensor node after storing the data; and to determining whether the scale of invalid range is not smaller than Γ.
摘要:
A recovery method for a high-dimensional index structure is disclosed, in which a reinsert operation is employed based on ARIES (algorithm for recovery and isolation exploiting semantics) and a page-oriented redo and a logical undo. Further, a recording medium on which a program for carrying out the above method is recorded is disclosed, the program being readable by a computer. The recovery method for a high-dimensional index structure employing a reinsert operation according to the present invention includes the following steps. At a first step, an entry is inserted into a node, a minimum bounding region is adjusted, an overflow is processed, and a log record is stored. At a second step, the log record thus stored is recovered.
摘要:
A bulk loading method, for use in a high-dimensional index structure using some parts of dimensions based on an unbalanced binarization scheme, accelerates an index construction and improves a search performance. For the purpose, the bulk loading method calculates a topology of the index by recognizing information for the index to be constructed using a given data set, splits the given data set into sub-sets of data by repeatedly performing an establishment of a split strategy and a binarization based on the calculated topology of the index, if a leaf node is derived from the sub-sets of data divided through a top-down recursive split process, reflects a minimum bounding region of the leaf node on a higher node, and, if a non-leaf node is generated, repeatedly performing the above processes for another sub-set of data to thereby produce a final root node.
摘要:
A concurrency control method for a high dimensional index structure that provides efficient concurrency control method for a high dimensional index structure, which performs reinsertion of certain objects to cope with node overflow. The concurrency controlled searching method includes the following steps. First, an entry is obtained from a queue storing the root node and an object relating to the entry is selected. Second, whether a logic sequence number (LSN) of a lower level node is larger than an expected LSN stored in the upper node is determined. Third, the process moves to a neighbor node of the lower level node if the LSN is bigger than an expected LSN stored in the upper node in the second step, selects a relating object, and performs from the second step repeatedly. Fourth, an object of a node of a level corresponding to the lower level node in a reinsertion table is selected when a search on an index tree is finished if the LSN is not bigger than the expected LSN stored in the upper node in the second step.