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7 To 3.3 V operating supply voltage 44.1 kHz sampling frequency 16.9344 MHz (384fs) system clock Built-in crystal oscillator circuit 16-bit, MSB rst, rear-packed serial data input format ( 64 fs bit clock) 8-times oversampling digital lter · 32 dB stopband attenuation ·+0.05 to -0.05 dB passband ripple Deemphasis lter operation · 36 dB stopband attenuation ·-0.09 to +0.23 dB deviation from ideal deem- phasis lter characteristics Attenuator · 7-bit attenuator (128 steps) set by microcontrol- ler Soft mute function set by parallel setting ·(approximately 1024/fs total muting time) Mono setting · Left or right channel mono selectable by micro- controller Built-in innity-zero detection circuit , two-channel D/A converter · 3rd-order noise shaper · 32fs oversampling Built-in 3rd-order post-converter low-pass lters 24-pin VSOP package Molybdenum-gate CMOS process

2.7至3.3 V工作电源电压为44.1千赫的采样频率16.9344兆赫(384fs)系统时钟内置晶体振荡器电路的16位,MSB在前,后包装的串行数据输入格式(64飞秒位时钟)8倍超采样数字滤波器·32分贝的阻带衰减·+0.05至-0.05分贝通带纹波去加重滤波器的运作·36 dB抑制频宽衰减·-0.09到0.23 dB的偏差认为不理想,症状困扰评估滤波特性衰减器·7位衰减器(128级)集由单片机在-莱尔软静音功能的平行设置·(共约1024/fs静音时间)单声道设置·左或右声道单声道微控制器可选的内置的无限零检测电路Δ,两通道的D / A转换器·第三阶噪声整形·32fs过采样内置三阶后转换器的低通滤波器24引脚VSOP封装钼栅CMOS工艺

The phase of ω0 frequency fluctuates tempestuously. The resonance peaks of flexural and torsional vibrations response are present at 2/3ω0 1/2ω0 1/3ω0 and 1/4ω0 with three kinds cracked rotor models. Near 1/2ω0 frequency, quasi-periodic and chaotic motions maybe appear. Periodic, quasi-periodic and chaotic motions show on alternately when the rotating speed is near to 2/3ω0.Combined step-by-step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward.

研究结果表明:各种故障情况下,华北电力大学博士学位论文弯振和扭振之间都存在祸合关系,但弯扭祸合振动一般不会威胁机组安全运行:在叶片丢失或滑环飞脱故障时,将产生很大的弯振,同时各转子扭振也将被激发出来,它以工倍频和前三阶固有频率为主;在各种电气故障情况下,各转子都很快被激励出较大幅值的扭振来,相应各转子弯振也发生一定的变化,但它的变化明显滞后于扭振,扭振和扭矩主要以前三阶固有频率为主。

In addition this paper,"Bio-Rad method," two parasitic wasps of the post-embryonic development the process of protein accumulation in young bees and the host Plutella xylostella in this process in vivo haemolymph protein content were measured and found that over time, was gifuensis parasitic larvae of the diamondback moth haemolymph protein content showed an upward trend in nearly a straight line, Ichneumonidae parasitic For example, in the early parasitic diamondback moth haemolymph protein content also showed the trend of slow growth, but in the mid-and late parasitic young bee about to be completed in the development of the host body when to stop feeding, a significant downward trend却呈, and significantly lower than the third day of its own protein content; on the same day of the different species of the diamondback moth parasitic wasp hemolymph protein content compared Ichneumonidae Parasitism of diamondback moth have hemolymph protein content than in the third and fourth day after the parasitic Braconidae hemolymph content to be high, but very different in the case of the fifth day, as evidenced by her side after the parasitic bee moth haemolymph protein content is cocoon of the parasitic bee hemolymph protein content of 0.7 times.

另外本文采用&Bio-Rad法&对两种寄生蜂胚后发育过程中幼蜂蛋白积累及寄主小菜蛾在此过程中体内血淋巴蛋白含量进行了测定,结果发现随时间的推移,被茧蜂寄生小菜蛾幼虫的血淋巴蛋白含量是呈近直线增加趋势,而对于姬蜂寄生来说,在寄生初期小菜蛾血淋巴蛋白含量也呈缓慢增长趋势,但在寄生中后期,幼蜂即将完成在寄主体内的发育取食停止时,却呈大幅下降趋势,且明显低于其自身第三天的蛋白含量;对同一天的被不同种寄生蜂寄生的小菜蛾血淋巴蛋白含量进行比较,姬蜂寄生过的小菜蛾血淋巴蛋白含量在第三天和第四天均比茧蜂寄生后的血淋巴含量要高,但在第五天的情况大不相同,表现为被姬蜂寄生后的小菜蛾血淋巴蛋白含量是被茧蜂寄生的血淋巴蛋白含量的0.7倍。

Using tertiary trisomes and hypoploids of a set of B-10L translocations, the CL-repeat signals and the variants in each of the three distal heterochromatic regions were identified.

利用一系列的B-10L易位染色体所产生的三级三染体和亚倍体,可以判断CL-repeat讯号及其变异产物在三个远端异染色质区(DH1, DH2, DH3)上的分布位置。

"Pattern of this kind of trade is in the United States extraordinary success, everybody dare ignore this kind of mode so, although 9 get the turnover that shows level not tall, but we have 3 every year to arrive to grow quadruply, do after 3 years two big."

&这种商业模式在美国非常成功,所以谁也不敢忽视这种模式,虽然九钻现阶段的营业额不高,但我们每年有三到四倍增长,两三年后就做大了。&

In this study, isolate 23 microbes with lipase activity from Wu-Jie scrap heap at Ilan and Taichung Environmental Protection Section. When the microbes incubator in 50oC, there are isolates B61 and M63 that lipase activity are better than others. Brevibacillus borstelensis SH168 isolated from NTU resterant food waste compost is used as control check. Isolates B61, M63 and Brevibacillus borstelensis SH168 determine the lipase activity by the LB with tributyrin. The lipase activity of isolates B61 and M63 are 2~3 fold higher than Brevibacillus borstelensis SH168. So isolates B61 and M63 are more useful in producing lipase. Isolate B61 can grow at pH 5~9, and at temperature 20oC ~ 60oC; isolate M63 can grow at pH 6~10, and at temperature 30oC ~ 50oC. Isolates B61 and M63 were identified by 16S rRNA. Isolate B61 is Bacillus circulans, and isolate M63 is Bacillus species.

本研究,於宜兰五结垃圾场和台中市环保局厨余堆肥样品中共分离出 23 株具脂肪酶活性菌株, 23 株菌株中经过三油酸甘油酯的洋菜培养基於 50℃培养 5 天后,发现有 2 株菌的脂肪酶活性较强,分别为分离株 B61 和 M63;以本实验室先前自台大女九餐厅蔬果厨余堆肥中所筛选出的耐高温脂解菌 Brevibacillus borstelensis SH168作为本实验对照菌株,将分离株 B61、M63 及 Brevibacillus borstelensis SH168 3 株菌株於含有三酪酸甘油酯液态培养基培养并测定其脂肪酶活性,发现分离菌株之活性皆比 Brevibacillus borstelensis SH168 高出 2~3 倍,认为分离株 B61、M63 适於产生脂肪酶的菌株,分离株 B61 在 pH 5~9 皆可生长,生长温度介於 20 oC ~ 60oC;分离株 M63 在 pH 6~10 可生长,生长温度介於 30 oC ~ 50oC; 2 株分离菌株以 16S rRNA定序结果分离株 B61 为 Bacillus circulans,分离株 M63 为 Bacillus 属。

The number of chromosomes was varied in the progeny of the triploids.There were diploids and various aneuploids with chromos...

除了三体_(11)和二倍体相似,其它11个初级三体都有明显不同的形态学特点,可依照这些特点互相区别。

In this study, We typed the the gene of β〓-AR from genomic DNA of asthmatic patients and made the further analysis: The distributing condition of genetic polymorphisms at positions 16 and 27 in β〓 AR coding region and at position 19 in 5'Leader Cistron (5'LC) among southwest Chinese asthmatic population; The relationship between the each polymorphisms at the above three positions and the asthmatic phenotypes (FEV〓 or nocturnal asthma); The effect of each polymorphisms at the above three positions on bronchodilator responsiveness induced by β〓- agonists(initial bronchodilator response, pharmaco-dynamic); The relationship between the haplotypes of polymorphisms in the 5'LC or in positions 16, 27 of β〓AR coding block and asthmatic phenotypes or bronchodilator responsiveness induced by β〓-agonists.

实验通过对哮喘人群的β〓-AR基因进行分型,探讨:β〓-AR编码区16、27位点及5'前导肽(5'LeaderCistron,5'LC)19位点遗传多态性在中国西南地区哮喘人群中的分布情况;三个位点多态性与哮喘临床表现型的关系;三个位点多态性对β〓受体激动剂反应性(支气管舒张反应,舒张反应动力学)的影响;16、27位点及5'前导肽19位点遗传多态性单倍型与哮喘临床表现型及β〓受体激动剂反应性的关系。

The following exciting results are revealed: 1 When considering the influence of some nonlinear elements such as hard-limit of exciters, the effects of some devices such as Power System Stabilizer and Static Var Compensator which can introduce positive damping in power system, the reasonability of system parameter values in simulation, the SNB surface and HB surface on the boundary of SSSR will turn close to each other and even coalesce together; 2 Under some conditions, coupling between slow exciters and shunt capacitors will bring negative damping in power system dynamics, which increases the possibility of oscillatory instability. So the power system with mass shunt compensators is easily subjected to the oscillatory instability. In recent years, chaotic phenomena of power system have been reported many times. Some simulation studies even found chaos existing inside the power system SSSR. In this dissertation, chaotic phenomena in power systems are thoroughly studied in order to make clear the relation of chaos and SSSR. The following results are derived: 1 Based on Li-Yorke Theorem and their definition on the chaos, the existence of chaos in power system is verified; 2 Three possible routes of causing chaos in power system are found and deeply investigated. They are route of cascading period doubling, route of directly initial energizing and route of torus bifurcation (or quasi-periodicity). The latter two routes are investigated for the first time in power system stability studies; 3 When the stability conditions of chaos are broken, it is found they can lead to voltage collapse, angle divergence, or voltage collapse with angle divergence simultaneously.

针对在电力系统小扰动稳定区域内可能存在混沌吸引域的有关报道,本文深入研究了电力系统混沌现象的出现途径和与系统失稳模式之间的关系:1利用Li-Yorke定理和Li-Yorke的混沌定义,从理论上证明了电力系统混沌现象的存在性;2发现了电力系统中导致混沌出现的三种可能途径:倍周期分岔导致混沌、初始能量直接激发混沌和经由环面分岔导致混沌,并对后两种新发现的途径进行了较为细致的研究;3发现了混沌极限环破裂导致电压崩溃、角度失稳以及电压崩溃和角度失稳同时出现的现象,其中混沌极限环破裂导致系统角度失稳和电压崩溃及角度失稳同时出现的现象均属首次报道;4证明由微分-代数方程描述的系统模型,其小扰动稳定域的边界只包含HB、SNB和SIB三种分岔界面,在SSSR的内部和边界上,均不可能存在会导致混沌的点,从而将混沌现象排除在小扰动稳定域的研究之外,简化了后者的研究工作。

By the import of indirect differential frequences conception, numeric differential frequences method with improves the absolute measurement distance 1 times is present.

通过将间接差频测距概念引入连续光源三维成像系统,提出了数值差频三维测距法,将绝对测距量程提高到原来的3倍。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。