至高的

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

Statistical evaluation was performed by using x~2 test and Fishers exact test for enumeration data and independent t test for measurement data to assess relationship of methylation between pancreatic neoplasm.

在从胰腺炎、IPMN至胰腺癌的进程中，NPTX2基因高甲基化阳性率逐渐加深，提示NPTX2基因可能参与胰腺癌进展，其高甲基化导致的基因沉默可能是导致胰腺癌的原因之一。

In blastula embryos and 50% epiboly embryos, the zygotic pou2 transcript is also distributed in every blastomere cell. At the stage of 90% epiboly, expression of pou2 converges to the dorsal midline of embryos and locates in two waves of lateral neural plate and two transverse stripes in the brain region. In embryos at 100% epiboly, pou2 transcript is restricted in the neural plate and areas of presumptive midbrain amid himdbrain. From somite stage, gibel carp pou2 can not be detected any more, which is consistent with the RT-PCR result.

在高囊胚期和50%下包期，高度表达的合子转录本仍在所有的胚盘细胞中，但至90%下包期时，pou2的表达向胚胎背部的正中线汇聚，集中在神经板的两侧区域和脑部的两条横向条带在100%下包期时，pou2的表达集中在神经板的中间区域以及预期形成的中后脑区域至体节期时，转录本消失，这与RT-PCR结果高度一致。

The detailed procedures of the method are as follows: the charging material of Ti-6Al-4V alloy is put into the crucible of an induction skull melter, heated and melted under the environment of high-purity argon and 400-700Pa pressure; pre-coated bars with the TiH2 of the weight accounting for 0.09 to 0.2 percent of the charging material are added in; when the hydrogen-contained titanium alloy in the crucible cools and the temperature drops below 300 DEG C, the charging material is vented off and cooled until the temperature equal to room temperature.

它的具体方法为：将Ti-6Al-4V合金的炉料装入感应凝壳熔炼炉的坩埚中，在压力为400～700Pa的高纯氩气环境中进行加热熔化；然后熔入含炉料质量0.09％～0.2％的TiH2的预制棒；当坩埚中含氢的钛合金逐渐冷却凝固并降温至300℃以下后，破真空，进一步冷却至室温。

We can imagine lifting up still bleeding heart, lighting the road lead to the saintliness; even falling down, we believe, our heart will also sleep peacefully amidst fresh and tender green grasses, winding pure water is around; our heart with no regret, facing the mountains covered by woods, getting the deepest trace eternally left in the spiritual homeland…….wherever our fingerprints reach wherever the deepest cherished dream will emerge

我们可以想象高举起还在滴血的心，照亮通往至善至美道路；即使倒下，我们笃信，我们的心灵也会安眠于鲜嫩的青草间，四周是坏绕的净水；我们无悔的心，面向树木覆盖的山脉，把最深的印痕永远留在精神的故乡。

Consider to make clear in recent years, second acid is calcic - Bowman does not move bacillus clinical bacterium of single born of the same parents of the detached rate that go up and verdigris holiday comparatives, have the tendency that year after year rises, the fundamental condition pathogenic bacteria that already became the infection inside the courtyard [1] , have to a variety of antibacterial content be able to bear or endure higher property of a medicine [1, 2] , for this, we are monitored and statistic analysed my courtyard to came 1998 2004 7 years a second acid is calcic - the clinical infection condition that Bowman does not change bacillus, to 14 kinds of antibacterial content be able to bear or endure property of a medicine and be able to bear or endure medical tendency, sum up a report to be as follows now. 1 material and method all data all come from 1.1 basic materials to came on January 1, 1998 my courtyard outpatient service was mixed on December 31, 2004 the specimen sending check of inpatient, via clinical microbiology the lab is fostered and classics appraisal is second acerbity calcium - Bowman does not move bacillus to affect case of illness, with clinical and commonly used antibacterial at the same time content makes the kill that medical quick detects. 1.2 bacteria appraisal is mixed medical quick experiment uses live thing VITEK32 of Mei Li dust is full automatic the bacterial appraisal of bacterial analysis system and its form a complete set gets stuck and medical quick card undertakes detecting, 1998~2000 year use GNI appraisal gets stuck, 2001~2004 uses GNI+ card.

近年探究表明，乙酸钙-鲍曼不动杆菌临床上的分离率和铜绿假单胞菌相当，并有逐年上升的趋向，已成为院内感染的重要条件致病菌[1]，对多种抗菌药物有较高耐药性[1，2]，为此，我们监测并统计分析了我院1998年至2004年七年间乙酸钙-鲍曼不动杆菌的临床感染情况，对14种抗菌药物的耐药性及耐药趋向，现总结报道如下。1材料和方法1.1基本资料所有资料均来自于1998年1月1日至2004年12月31日我院门诊和住院病人的送检标本，经临床微生物学实验室培养并经鉴定为乙酸钙-鲍曼不动杆菌感染病例，同时以临床常用抗菌药物作药敏检测的结果。1.2细菌鉴定和药敏试验采用生物梅里埃VITEK32全自动细菌分析系统及其配套的细菌鉴定卡和药敏卡进行检测，1998~2000年使用GNI鉴定卡，2001~2004使用GNI+卡。

select 205 persons we accept include the old over 80 and the patients of colon obturation sign after anus illness since the year1991, and utilize 1000－5000ml high temperature water to coloclysis,until the ejection is clear, according to intestine cleaness and disappearing degree of symptom, and evaluate therapeutic action of tepid water enema for colon obturation sign.

选择1991年以来收治的大于80岁老年人和行肛门病手术后发生结肠填塞症的205名患者，应用高温水（以手指能耐受为度，约为50℃）1000－5000ml灌肠，至排出物清亮为止，根据结肠镜检所见肠道清洁度和患者症状消失程度评价高温水灌肠对结肠填塞症的治疗作用。

The high compressive strength is obtained when the modulus of the activator viz., molar ratio of SiO2/Na2O is 1.5, and the proper content of this activator evaluated by the amount of Na2O to the high-calcium fly is 10 %. The compressive strength of these samples is 63.4 MPa when they is cured at 75 oC for 8 hours flowed by curing at 23 oC for 28 days. The main gels of geopolymer and calcium silicate hydrate, and Gismondine co-exist and bond some remaining unreacted fly ash spheres.

结果表明：复合碱激发剂适宜的模数M =n(SiO2)/n(Na2O)为1.5，掺量为Na2O当量10％；适宜养护条件为，75oC养护8h，然后在23oC室温养护至所需龄期，其28d抗压强度达63.4MPa；碱激发高钙粉煤灰同时生成地聚合物凝胶和水化硅酸钙凝胶，并有类沸石矿物生成，反应产物与未反应的粉煤灰颗粒胶结成较为密实的高钙粉煤灰地聚合物。

Psia . The high combustion temperatures (4500 to 6500°R) and the high heat transfer rates (up to 100 Btu/in2-sec) encountered in a combustion chamber present a formidable challenge to the designer.

高燃烧温度（ 4500至6500 ° R ）和高传热率（高达100 btu/in2-sec ）中遇到的燃烧室，目前是一项艰巨的挑战，以设计师。

Prolactin receptorgene was studied as a candidate gene for the prolificacy of Jining Grey goats. Eight pairs of primers were designed to detect single nucleotide polymorphisms of exon 3 to exon 9 and intron 9 of PRLR gene in both high fecundity breed and low fecundity breeds (Liaoning Cashmere goat and Angora goat) by PCR-SSCP.

设计8对引物，采用PCR-SSCP技术检测催乳素受体(prolactin receptor，PRLR)基因外显子3至外显子9和内含子9在高繁殖力山羊品种和低繁殖力山羊品种（辽宁绒山羊、安哥拉山羊）中的单核苷酸多态性，同时研究该基因对济宁青山羊高繁殖力的影响。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。