In the experiment of compaction, we used three methods-pound、vibration in the under and vibration on the sufferce, and emphasis on the vibration compaction experiment in the under, together with considering moisture content、vibration frequency、swing、weight on the surface、times of filling eolian sand、merit of compation、time of vibration、the makeup of eolian sand.
风积砂的压实通过标准重型击实、底部振动压实、表面振动压实三种压实方法对风积砂进行压实，其中以底部振动法为重点，综合考虑含水量、振动时间、振动频率、振幅、表面压块重量、不同填料次数、压实功、风积砂自身级配等影响压实效果的因素进行试验。
Obvious laceration and bleeding were seen in the lung tissue surrounding the wound tract. Chest radiology demonstrated increased bronchovaslular shadows. Breathing frequency and lung water content elevated notably early after injury. As time prolonged, PaO2 and SaO2 progressively decreased, PO2 and lung water content increased progressively.
结果 胸部爆炸伤后，100%家兔发生肺冲击伤，60.0%为极重度/重度伤，56.7%出现肺脏碎片伤，周围肺组织可见明显撕裂、出血，胸部X线表现为两肺纹理增粗、模糊，伤后早期即出现呼吸频率明显增加，PaO2、PO2、SaO2均明显下降，肺含水量增加。
Zinc oxide dissolves in Boron oxide and reacted with titanium oxide(TiO2) to form Zn2TiO4. With the increase of content of ZnO, the temperature coefficient of frequency reduced to negative, dielectric constant minished and did disadvantage to Qf Value.
辅以ZnO为温度系数调节剂，低温下ZnO与基相中TiO_2反应生成Zn_2TiO_4；随着ZnO含浙江大学硕卜论文量的增大，体系的频率温度系数减小且变为负值，介电常数也低于基相，不利于提高Qf值，频率温度系数随着烧结温度提高而增加。
Main content are as follows:(1) Mathematical model for the control system, including differential equation, transfer function, state equation, block diagram and model transform; (2) Time domain analysis of the control system, including time response calculation, stability, controllability, observability and dynamic performance; (3) Frequency domain analysis of the control system, including Nyguist stability criterion, Bode plot and the relation between Bode plot and the performance of control system; (4) Design for control system, including serial compensation, parallel compensation and combination compensation; (5) Sampled-data control theory, including model description, performance analysis and the system design.
授课内容：（1）控制系统的数学模型，包括微分方程、传递函数、状态方程、结构图和模型转换；（2）控制系统的时域分析，包括时间响应计算、控制系统的稳定性、能控性、能观性和动态性能；（3）控制系统的频域分析，包括Nyguist 稳定判据、Bode图、开环Bode图与控制系统的性能；（4）控制系统的设计，包括串联校正、并联校正和复合校正；（5）采样控制系统理论，包括采样系统的模型描述、性能分析和系统设计。
Several mixed control samples of manganic manganous oxide, manganese dioxide and manganese sulfate with various sulfur content were prepared by adding sulfuric acid with known concentration into high pure manganic manganous oxide. Then they were dried and mixed, and the content of sulfur was determined by high frequency infrared ray carbon sulfur analyzer.
向高纯四氧化三锰中加入已知浓度的硫酸，制备不同含硫量的四氧化三锰、二氧化锰、硫酸锰的混合物控制样，将制备好的控制样干燥、混匀后，用高频红外碳硫分析仪分析控制样中的硫含量。
By the reduction of aquatic oxygen content, turtles seemed to auto-adjust themselves respiration frequency, shaping obvious respiratory wave.
光照与黑暗环境对水中的溶氧量和乌龟的呼吸影响无显著差异(T=0.8879和T=-1.3599)。
The genetic variation gene frequency, heterozygosity, polymorphic information content(PIC and effective number of alleles of 3 microsatellite loci(IDVGA30, BMS1516, OY3) was analyzed in 6 sheep populations (Chinese Merino, Suffolk, Dorset, FI of Suffolk crossed with Xinjiang Fine Wool, F of Doset crossed with Xinjiang Fine Wool and Charolais sheep).
本试验对6个绵羊群体(中国美利奴、萨福克羊、萨福克羊×新疆细毛羊母羊F1代杂种羊、多赛特羊、多赛特公羊×新疆细毛羊母羊F1代杂种羊和夏洛来羊)中3个微卫星位点(OY3、BMS1516和IDVGA30)的遗传变异(基因频率、杂合度、PIC和有效等位基因数)进行了初步的分析研究。
The frequency measurement is in an electronic surveying domainimportant content, but the high accuracy frequency meter applicationespecially is widespread.
在快速测量的要求下，要保证较高精度的测频，必须采用较高的标准频率信号。
Finally, according to the above content, GSM quality optimization is analyzed and researched, including frequency planning, Loss line, Switching problems and traffic balance.
最后，根据上述内容，对 GSM 质量优化的进行了分析研究，主要包括频率规划问题、掉话问题、切换问题和话务均衡问题等方面的研究。
Decrease of base medium concentration, reduction of sub-culture frequency, or prolongation of sub-culture period favored differentiation and growth of regenerated plantlets. High content of soluble protein favored shoot differentiation, and high content of soluble sugar enhanced shoot growth. There was obvious positive correlation between activities of POD and SOD and number of differentiated shoots. So was between GA1 + 3/ ABA, as well as ZRs/ ABA, and shoot height. The IAA/ ABA ratio or IAA was also related to rhizogenesis.
结果表明，适当降低基本培养基浓度、减少继代次数和延长继代周期培养的愈伤组织分化的芽较多、较壮；再生芽的分化需要较高水平的可溶性蛋白质，其生长需要较高水平的可溶性糖； POD 和SOD 活性与分化的芽数呈正相关； GA1 + 3/ABA、ZRs/ ABA 的高比例与再生芽的高度呈显著正相关； IAA/ ABA 及IAA 的高水平与花烛离体根的发生呈正相关。
Methods The pain threshold of the rat was measured before and after the application of ultrasound medium frequency electrotherapy. The content of met enhephalin and leu enkephalin in the glandula hypophysis and hypothalamus was also measured.
对大鼠经超声中频电作用后的疼痛反应进行定性、定量分析，并通过直线回归方法分析大鼠痛阈值变化与腺垂体、丘脑下部脑啡肽变化的相关性，探讨其镇痛作用机制。
With early maturing, high yield and moderate scale rubber clone Reyan 8-79 at high exlploition stage as the material, dynamic rules of dry rubber content, contents of sucrose, phosphorus, thiol and Mg2+ were studied in this experiment which hoped to explorer physiological characteristics and adaptability to lower frequency tapping system.
以中国中规模推广级早熟高产品种热研8-79旺产期开割树为材料，测定了产量、干含、蔗糖、无机磷、硫醇和镁离子等指标变化，以期研究该品种的生理特性和对s/2d/3+ET1%刺激割胶制度的适应性。
The main content of this dissertation includes: 1. Research on the theory of ultrasonic power supply, introduce its development process. On the basis of these, fix on the scheme of medical ultrasonic low-power supply. 2. According to the principle of modularized design, divide medical ultrasonic low-power supply into four parts. They are power amplify circuit, power control circuit, frequency automatic tracking circuit and matching circuit. Separately research on their theories and design their circuits and necessary programs, especially, effectively resolve the problem tracking the supersonic vibration system with a narrow syntony frequency bandwidth and a high swing. 3. The matching experiments gain good result, and prove that medical ultrasonic low-power supply is entirely up to the mustard on intellectualization, wide band of working frequency, steady output and high efficiency.
本文工作的主要内容包括：1、研究了超声功率电源的原理，并回顾了它的发展过程，在此基础之上确定本文医用小功率超声电源的设计方案； 2、按照模块化的设计原则，将医用小功率超声电源的设计分解为功率放大电路、功率控制电路、频率自动跟踪电路和匹配电路等四个部分，分别研究了各部分的原理，在此基础之上进行了具体的电路设计和程序设计，尤其是有效地解决了对谐振频率带宽窄振幅高的超声振动系统的频率跟踪问题； 3、通过与超声振动系统的各项配合实验，取得了很好的实验结果，验证了医用小功率超声电源完全满足智能化、工作频带宽、输出功率稳定、输出效率高的设计要求。
Methods: the pubertal rats were fed with zyxhr or ystjr for 30 days, and the parameters of rats were monitored as the followings: the content of gonadotropinreleasing hormone, the frequency and amplitude of gnrh impulse releasing, the releasing amounts of aminoacid neurotransmitters, and neuropeptide y and βendorphin in the gonadotrophic area of the hypothalamus were detected with neurobiological methods (pushpull perfusion, homogenate, incubation of brain slices, and immunohistochemical staining). the levels of gene and protein expressions of gnrh, growth hormone releasing hormone and somatostatin in hypothalamus, and follicular stimulating hormone, luteinizing hormone and growth hormone in adenohypophysis as well as insulinlike growth factorⅰ in metaphysis were determined with real time reverse transcriptionpolymerase chain reaction.
采用神经生物学实验方法（下丘脑推挽灌流、组织匀浆、脑片孵育及免疫组化法）检测下丘脑促性腺区促性腺激素释放激素（gonadotropinreleasing hormone，gnrh）的含量、脉冲释放频率与幅度，以及中枢氨基酸递质、神经肽y及β内啡肽释放的变化；采用定量逆转录聚合酶链反应检测下丘脑gnrh、生长激素释放激素（growth hormone releasing hormone，ghrh）、生长抑素（somatostatin，ss）、腺垂体卵泡刺激素（follicular stimulating hormone，fsh）、黄体生成素（luteinizing hormone，lh）、生长激素（growth hormone，gh）、长骨干骺端胰岛素样生长因子ⅰ（insulinlike growth factorⅰ，igfⅰ）基因及蛋白的表达水平。
The result indicated that 237 combinations amplified a total of 13079 AFLP fragments with an average of 55 fragments, the average of 1.30 markers per 1000 AFLP fragments were found to be linked to clubroot resistant gene; the amplified polymorphic fragments were 3167 between the two parents, account for 24 percent of polymorphic frequency; the number of amplified fragments and the number of polymorphic fragments was in positive linear correlation; GC content of AFLP primer combinations significantly affects the number of amplified fragments and the number of polymorphic fragments, indicating negative linear correlation between them.
结果表明：平均每个组合检测到55条带，共扩增13079条带，平均每1000条带检测到1.30个根肿病抗性基因连锁标记；多态性带数为3167条，双亲间多态性频率约为0.24；扩增带数与多态性带数呈线性正相关，引物组合中的不同GC含量与扩增带数和多态性带数存在显著性差异，并表现出线性负相关。
The different content of carbon and the various aspect ratios of fibres can adjust their complex permeability and resonance frequency.
通过对羰基铁纤维中碳含量及长径比的调节，可控制纤维的磁导率和共振频率。
Through the statistics of frequency distribution in present high school chemistry teaching material in chemistry thinking method as well as the questions about chemistry thinking method in the synthesis test in the near four year national college entrance examination, the research correlation data in this article discovered that it is containing the rich chemistry thing method content in the high school chemistry teaching. It not only has the vital significance but also the realistic feasibility.
本文通过统计现行高中化学教材中化学思想方法的频数分布以及近四年全国高考理综试题对化学思想方法考查的频数分布，研究相关数据发现：高中化学教学内容中蕴涵着丰富的化学思想方法内容，在高中化学教学中加强化学思想方法研究不但具有重要意义，而且具有现实可行性。
With the fluctuating of temperature, or of the content of Zinc oxide and Boron oxide (8203), frequency coefficient and dielectric constant was feasible. Microwave dielectric ceramics with performance 拢 r =63, Qf=3200 GHz, f =+0.6 ppm/ was obtained, which was sinered at 900 with 4wt% Zinc oxide and 0.5wt% Boron oxide.
复合添加zno和BZo3可以实现陶瓷粉体的低温烧结，得到微波介电性能良好的微波介质陶瓷材料：ZnO、BZO3用量分别为4wt%和0.swt%时，在900`C附近可以实现低温烧结，其体系Tf=+0 。6 PPm/oC，Qf=3200GHz，￡r=63。
With a high-frequency transducer, the fascial defect can be visualized underlying the hernia. Herniated bowel loops have a variable appearance depending on their air-fluid content and degree of obstruction.
应用高频探头可清晰的显示疝下的筋膜缺损，疝出的肠管由于气－液含量和梗阻的程度不同而有不同的表现。
The deformations under the dynamic load reduce with the increase of cell pressure, vibration frequency, and go up with the increase of water content.
振陷量随围压、频率的增加而减小，随着湿度的增加而增加，这个结论对实际工程中处理压实黄土的振陷，有一定的理论指导意义。