至高

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。

If the disk is infected with the virus, the memory is read the first part of the virus program, it has been modified after the control of the size of memory space available in high-end memory think of a region, and moved to the first part of the area, and then read on the disk "bad cluster" in the second part of the first part and to put together, so that all proceedings on the presence of the virus in memory of the high-end, and then modify the interrupt vector INT13H or other interrupt vector to the high-end virus program, then you can read the original boot memory and the control over to it to complete the system startup.

如果是染上病毒的盘，读到内存的是病毒程序的第一部分，它得到控制权后修改内存可用空间的大小，在内存高端辟出一块区域，并把第一部分移至该区，接着读入放在磁盘"坏簇"中的第二部分，并和第一部分拼起来，使病毒程序全部驻留在内存的高端，然后修改INT13H的中断向量或其它中断向量，使其向高端的病毒程序，这时即可把原引导程序读到内存中，并把控制权交给它以完成系统的启动。

Those "负翁" simply cannot wait to spend their future income today. In big cities like Beijing, Shanghai, Shenzhen, etc., there is many a man "rich" in debt. Aged from 25 to 40, they usually boast a better education, a handsome salary and a high position.

负翁这一群体喜欢今天花明天的钱，他们主要集中在北京、上海、深圳这样的大城市，年龄多在25至40岁之间，大都拥有高学历、高收入和高职位。

In addition to minimizing the formation of polymers and other degradation products that form rapidly when hematin is reconstituted with sterile water (as currently recommended in product labeling), there are lesser adverse effects on coagulation and irritation to veins (phlebitis, etc.).

低压冻干羟高铁血红素/正铁血红素应与人血白蛋白进行重组，以增强其稳定性；尽管羟高铁血红素/正铁血红素与无菌水溶解重组后，会使聚合物的形成及其他降解产物的迅速形成降至最低（产品标签上也指出了这一点）；但是，羟高铁血红素/正铁血红素对静脉的刺激、对凝血功能的影响等副作用都较小。

Negative doubles : A negative double at the one level or when there is exactly one unbid major guarantees at least four cards in any unbid major (opener may rebid in a three-card suit there in a pinch); otherwise, that requirement is only tentative (opener should not rebid in a three-card suit).

否定性加倍：否定性加倍在一阶或当正确地有一门未叫高花即为保证任何未叫高花至少有4张以上(开叫者可能在不得已情况下叫出3张高花)；否则，这只是一种假设性的要求(开叫者不应叫出3张的高花)。

ELISA showed that antibody responses induced by propolis vaccine were faster than that of oil-emulsion vaccines and aluminum hydroxide vaccines;antibody responses induced by oil-emulsion vaccines were longer in duration than that of propolis vaccines and aluminum hydroxide vaccines;the maximum antibody responses induced by oil-emulsion vaccines and propolis vaccines were higher than that of aluminum hydroxide vaccines;Antibody levels were all significantly boosted by revaccination of these vaccines and in addition to this,oil-emulsion vaccines showed longer antibody duration.

这七种疫苗在抗体产生速度方面以蜂胶苗较快，而油剂苗和铝胶苗免疫后抗体上升速度较慢；在抗体水平的维持能力方面，油剂苗较蜂胶苗和铝胶苗更强；在产生最高抗体水平方面，油剂苗和蜂胶苗能力相当且较铝胶苗为高；在加强免疫的效果方面，这些疫苗二次免疫所产生的抗体水平均较一次免疫更高，蜂胶苗和铝胶苗在第93天时的二免抗体水平已降至同一免相当，但此时油剂苗有着较一免更高的二免抗体水平。

The growth inhibiting rate of T24 cell lines were detected by MTT methods, apoptosis of cells were detected by flow cytometry, the mechanism of apoptosis was analyzed by detecting the protein expression of Bcl-2, Bax, Caspase-9, Caspase-3 and cytoplastic protein Cytochrome C. 4 We injected live T24 cells into the subcutaneous space of nude mice and successfully built up the animal model of bladder carcinoma. The effect of CS-PAA-EPI polymer magnetic microspheres targeting chemotherapy was investigated by HE staining, TUNEL ,tumor weight and volume inhibition rate. Results: 1 TEM revealed that the CS-PAA polymer magnetic microspheres were regular spherical shape,the average diameter was 80nm in dry condition. By controlling the pH value of the medium,polymers had positive or negative zeta potential. VSM showed the CS-PAA polymer magnetic microspheres had superparamagnetic. The diameter of CS-PAA-EPI polymer magnetic microspheres were 200nm in solution by DLS examining,the embedding ratio was 20%,the EPI loading rate was 15%, which was higer than reported in other articles. 2 Raw eye observation found that the rat"s bladder of treatment group was brown color,which meaned the aggregation of iron particles, compared with the control group, iron stain found iron particles were assembled in rat"s bladder of the treatment group, the amount of iron particles in liver and spleen were less obviously.

研究结果：1合成的CS-PAA磁性聚合物微球呈球形，大小均一，TEM测定其干态下粒径为80nm左右，磁化曲线证实具有超顺磁性，具有一定的PH敏感性，固载表柔比星后，水溶液性状稳定，无沉淀物，DLS测定直径约200nm左右，测定载药率为15％，较文献报道高，包封率为20％。2肉眼观察试验组大鼠膀胱表面呈褐色，可见大量的Fe粒子聚集，普鲁士兰染色法显示，试验组大鼠膀胱壁内有大量的Fe粒子，分布至膀胱壁全层，与对照组大鼠相比，试验组大鼠的肝、脾内的Fe粒子聚集量明显降低；HPLC测定结果与Fe染色相同；高剂量磁性CS-PAA-EPI生理盐水组及单纯EPI生理盐水组均在给药后14天出现血肌酐和尿素氮的升高，其他组大鼠血生化指标没有明显变化。3MTT法发现，高、中、低剂量磁性CS-PAA-EPI生理盐水组在外加磁场的协同作用下杀伤T24细胞效应明显高于单纯的EPI生理盐水组，FCM发现试验药物组可引起明显的肿瘤细胞凋亡，试验药物治疗组细胞胞浆内出现了由线粒体释放出的细胞色素C，试验组细胞Bcl-2蛋白减少，Bax蛋白变化不明显，Caspase-3、Caspase-9蛋白受到了激活活化。4高、中、低剂量磁性CS-PAA-EPI生理盐水组的瘤重抑制率和瘤体积抑制率均明显高于单纯的EPI生理盐水组(P＜0.01)，其中高剂量组的抑制率最高。

Of planted seedlings and conserved seedlings/saplings, 51.6% and 60.7% survived respectively. Thirteen months later, the seedling heights of Ficus septica, Mallotus repandus, Maacaranga tanarius, Melanolepis multiglandulosa, and Broussonetia kaempferi, and those of Hibiscus tiliaceus, Acacia confuse, and Mellettia pinnata increased more than 130 cm and 50 cm, respectively. The densities of the planted seedlings and conserved seedlings/saplings were 1610 and 680 per hectare, respectively. On the other hand, the density of Leucaena seedlings significantly decreased; and the height of Leucaena stayed steadily during the 13 months.

试验分经银合欢药剂注射处后，采用原生树苗下栽植及保天然新苗木方式进相旧，期间经过2次植栽周边除草抚育作业，栽植苗木及天然新苗木在13个月后之存活分别为51.6及60.7%，密分别为1610株／ha及680株／ha，其中果榕、扛香藤、血桐、虫屎、构树之苗高平均生长在130 cm以上，黄槿、相思树、水黄皮之苗高平均生长在50 cm以上；相对的，银合欢新幼苗在分经药剂处前之平均高为12.3 cm，密为236，000株／ha，药剂处后13个月，幼苗平均高为15.0 cm，幼苗密低至43，000/ha。

The results show that the relationships between the latitudes of ridge line of WPSH and ground temperatures of some regions in China are clear, and the high correlation regions are near the region of 100°~115°E, 30°~45°N. In the relation field of June, there is a quasi transmeridional high relation axes along 30°~35°N, and it moves northward to 34°~40°N in July and to 40°~45°N in August.

结果表明，西太副高的脊线位置与中国大陆一些区域的深层地温的关系明显，高相关区域在100°~115°E，30°~45°N之间。6月份，沿30°~35°N有一准东西向的高相关轴线，7月高相关带北移至34°~40°N， 8月高相关带北移到40°~45°N。

A process for manufacturing seamless flux-cored welding wires 0.8 to 4 mm in diameter with excellent cracking resistance and primer proof quality and containing very little diffusible hydrogen suited for the welding of high-tensile steels and steel structures subjected to large restraining forces by dehydrogenating by high-temperature heating comprises the steps of heating a straight wire 8-15 mm in diameter by direct electric heating through a first and a second pair of roll electrodes spaced 2 to 5 m apart and a ring transformer disposed therebetween to a temperature between 620 and 1100 degrees Centigrade, cooling the heated wire to a temperature not higher than 500 degrees Centigrade with a coefficient of heat transfer not higher than 250 kcal/m2 h degree Centigrade, and drawing to the desired diameter.

一种用来制造直径0.8至4mm的、具有优异的抗裂缝力和底层涂料防护质量并含有非常少的扩散氢的、适合于焊接高强度钢和承受大约束力的钢结构的无缝药芯焊丝，通过用高温加热进行脱氢处理来制造的工艺包括步骤：通过经布置成相隔2至5m的第一和第二对辊电极并经布置在它们之间的环心变压器的直接电加热，把直径8至15mm的直焊丝加热到620与1100℃之间的温度；用不高于250kcal／m2h℃的传热系数把已加热焊丝冷却到不高于500℃；以及拉伸到想要的直径。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。