dbm 中文意思是什麼
dbm
解釋
dbm紙-
Study on the fluorescence properties of terbium - europium - dbm - phen with - cyclodextrin
環糊精體系的熒光特性 -
The research and design of this subject synthesizes multifold technologies, which arc digital communication, network, oop ( object oriented programming ), and dbm ( data base management )
本課題的研究與設計綜合了數據通信、網路技術、面向對象編程和數據庫管理等技術。 -
And dbm. the crystal is stable in the air due to nonexistence of solvent molecules in the cell
因為晶胞中沒有溶劑分子存在，此晶體在空氣中很穩定。 -
Then the characteristic and estimation approaches of two important time variant parameter ( tvp ) and state dependent parameter ( sdp ) models are presented and the efficiency of the dbm method is illustrated by three examples based on the analysis of duffing equations, lorenz equations and time - variant equation, in contrast with other methods
本文首先總結了dbm在常規黑箱辨識演算法中的基本框架和兩類重要模型?時變參數（ timevariantparameter ， tvp ）模型和狀態依存參數（ statedependentparameter ， sdp ）模型的特點及其估計演算法。 -
We have prepared a series of neodymium binary / ternary complexes, such as nd ( acac ) 3 ' 2h2o, nd ( tfa ) 3 ' 2h2o, nd ( hfa ) 3 ' 2h2o, nd ( dbm ) 3 ' h2o, nd ( acac ) 3phen, nd ( tfa ) 3phen, nd ( hfa ) 3phen, nd ( dbm ) 3phen, nd ( tta ) 3 ( tppo ) 2, nd ( hfa ) 3 ( tppo ) 2, nd ( acac ) 4hpy, nd ( tta ) 4hpy and ndq3. the effects of organic ligands, synergistic coordination agents and different substitution groups for - diketones on effective line width and photoluminescence intensity of neodymium complexes were investigated. the photoluminescence spectra indicate that synergistic coordination agents can shield neodymium ion and impede water molecules penetrating into inner coordination shell to satisfy large coordination number of nd3 + during hydrous synthesis process, so the luminescence intensity of neodymium ternary complexes is stronger than that of neodymium binary complexes
發光光譜研究表明，由於協同試劑的參與，屏蔽了水分子參與配位，降低了羥基（ oh ）對釹離子激發態能級~ 4f _ （ 3 2 ）的猝滅，三元配合物的熒光強度均比二元配合物強，其中配合物nd （ tta ） _ 3 （ tppo ） _ 2在1340nm處的熒光強度最強，適合作為摻雜的光學活性物質，來制備有源光波導材料；在有水工藝條件下，單純地氟化配體未必能提高釹配合物的近紅外發光性能。 -
The color of devices is disturbed badly and the luminescent efficiency of devices is degradated because of exciplex ' s emission. the mechanism is investigated in this paper on the formation of exciplex and on the mixing - layer device structure eliminating the exciplex based on rare - earth complex, specially on eu ( dbm ) 3bath and gd ( dbm ) 3bath. it is thought that the exciplex results from the interaction between the singlet excited state of the ligand of electron acceptor material and the ground state of electron donor material
本論文以稀土配合物oel為重點和基礎，以eu （ dbm ） _ 3bath和gd （ dbm ） _ 3bath為典型材料，研究了激基復合物的形成和稀土配合物器件中混合層能夠消除激基復合物，認為激基復合物是電子受體材料配體能級的單重態與電子給體材料的基態相互作用而產生的。 -
The design process consisted of computer design by circuit simulation software integrate with electromagnetic simulation software, fabrication of microstrip bpf 、 lpf 、 the match circuits, cavity and test. when rf frequency is 91 ~ 97ghz, lo frequency is 47ghz, power is 10 dbm. the best conversion loss of the 2 and 4 sub - harmonic mixer is 13. 5 db and 23. 5db which is shown in the test
實測表明，在本振為47ghz ，功率10dbm ，測試射頻帶寬為91ghz 97ghz時，二次與四次分諧波混頻器變頻損耗最優處分別為12 . 7db和23db 。最後對實驗結果進行分析並提出改進措施。 -
The first character in the string must be an alphabetic character, , or ; it cannot be a number or the letter sequences sys, dbm, or ibm
字元串中的第一個字元必須是字母字元、 @ 、 #或$ ，而不能是數字或字母序列sys 、 dbm或ibm 。 -
Gt gain antennas, 0. 6 m for the collection plate dish antennas. fired surface antenna gain of 35 dbm
Gt ：發射天線增益，收發天線配置為0 . 6米板狀拋物面天線，發射天線增益為35 dbm面 -
The parasitized dbm larvae had prolonged their 4th instar duration obviously, and the later the larva had been parasitized, the longer this extended duration became
小菜蛾幼蟲被寄生后，其4齡發育歷期較未被寄生的顯著長，且寄生時齡期越大4齡歷期延長越多。 -
Based on our theoretical predictions, we find optimal splicing parameters on fsm - 30s fiber splicer for low loss joints between erbium doped fiber and other single mode fibers. we also experimentally demonstrate a novel three - stage erbium - doped fiber amplifier with high gain, low noise figure, and high output power. finally, a prototype of a gain - clamped fiber amplifier is obtained with high gain ( 26 db ), low noise figure ( 5. 3 db ), high output power ( 17 dbm ), and large bandwidth ( 31 nm )
文章研究了摻鉺光纖（ edf ）與其他光纖低損耗焊接問題，得到光纖熔接機低損耗熔接的最佳參數，這對摻鉺光纖放大器的科研生產具有一定的指導意義；研究了新型的三段級聯泵浦優配的摻鉺光纖放大器的優化光路結構，得到高增益，低噪聲，大輸出功率的摻鉺光纖放大器；最後研製成功高增益（ 26db ） ，低噪聲（ 5 . 3db ） ，大輸出功率（ 17dbm ） ，寬帶（ 31nm ）增益箝制摻鉺光纖放大器樣機。 -
With the increase of the gptms, the luminescence intensity of l. omol % eu3 + and 3. 0mol % dbm co - doped gels increase gradually, which indicated that the increase of the gptms promoted in - situ synthesis of the dbm : eu3 + complexes in the gels
在不同比例的gptms / teos凝膠中雙摻dbm和eu ~ （ 3 + ） ，隨著gptms在基質中浙江大學研士學過被文所佔比例的升高，稀土有機配合物在其中的熱衰減溫度亦逐漸降低。 -
We have investigated transport properties of electrons in magnetic quantum structures under an applied constant electric field. the transmission coefficient and current density have been calculated for electron tunneling through structures consisting of identical magnetic barriers and magnetic wells and structures consisting of unidentical magnetic barriers and magnetic wells. it is shown that the transmission coefficient of electrons in a wider nonresonance energy region is enhanced under an applied electric field. the resonance is suppressed for electron tunneling through double - barrier magnetic ( dbm ) structures arranged with identical magnetic barriers and magnetic wells. incomplete resonance at zero bias is changed to complete resonance at proper bias for electron tunneling through dbm structures arranged with different magnetic barriers and magnetic wells. the results also indicate that there exist negative conductivity and noticeable size effect in dbm structures
對磁量子結構中電子在外加恆定電場下的輸運性質進行了研究.分別計算了電子隧穿相同磁壘磁阱和不同磁壘磁阱構成的兩種磁量子結構的傳輸概率和電流密度.計算結果表明，在相當寬廣的非共振電子入射能區，外加電場下電子的傳輸概率比無電場時增加.對于電子隧穿相同磁壘磁阱構成的雙磁壘結構，共振減弱；對于電子隧穿不同磁壘磁阱構成的雙磁壘結構，無電場作用時的非完全共振在適當的偏置電壓下轉化為完全共振，這時的電子可實現理想的共振隧穿.研究同時表明，磁量子結構中存在著顯著的量子尺寸效應和負微分電導 -
Experimental study of pdlla ha dbm artificial bone for the repair of rabbit radius defect
骨形態發生蛋白及多孔復合陶瓷人工骨修復長骨大段骨缺損的實驗研究 -
You can even enter voltage values directly in vpp, vrms, dbm, or
Dbm電壓值或高低電平值 -
You can even enter voltage values directly in vpp, vrms, dbm, or as high and low levels
您甚至還能直接輸入vpp vrms dbm或高低電平值 -
With the increase of eu3 + concentration, however, the luminescence intensity of the eu3 + and dbm co - doped vtes gels and mtes gels decreased gradually, which indicated that it is difficult to in - situ synthesize the rare earth complexes in the vtes and mtes gels
但在vtes凝膠和mtes凝膠基質中稀土有機配合物dbm ： eu ~ （ 3 + ）原位合成的程度較小，其熒光強度隨著摻雜稀土離子濃度的升高而降低。 -
The results show that although dbm method can fit the systems with high precision, avoid over - fitting and accurately reflect the time - variance and state - dependency in the systems, it may also reduce the efficiency of the whole method due to the exponentially increasing calculating numbers with the increase of the number of the states. and genetic algorithm is introduced to improve the search efficiency
接著利用dbm方法和其他非線性辨識演算法分別對時變參數方程、 lorenz方程和杜芬方程進行分析和比較，發現盡管方法本身具有擬合精度高，不存在過擬合現象，可以較精確的反應參數對于狀態或者時間的依存關系等特點，但是sdp方法在分析復雜問題時存在搜索效率低，計算時間長的缺點。 -
The variances of the sum of the amplitude quadratures of the three obtained optical modes and the relative phase quadratures among them is respectively 3. 28 dbm and 3. 18 dbm below the corresponding shot noise limit
完全不可分判據中三個不等式左邊的值分別為1 . 90 ， 1 . 83和2 . 94 ，全部小於歸一化后的散離噪聲極限4 。 -
The models identified by the data - based mechanistic ( dbm ) black - box method can not only explain the data in a statistically efficient, parsimonious manner, they also provide an acceptable interpretation of the system under study. so it has been widely utilized in the black - box identification, especially the identification of the nonlinear and non - stationary systems
由於基於數據的機械論（ data - basedmechanistic ， dbm ）黑箱辨識演算法得到的模型具有形式簡單、統計有效和物理意義清晰的特點，因此在現代黑箱問題的辨識中特別是非線性非穩態系統的辨識中得到了一定程度的應用。
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