Fixation of chronic suture exostosis in a mature horse

This case report describes the clinical findings, diagnosis and treatment of a 14‐year‐old Warmblood gelding with suture exostosis. The horse was referred to our clinic because of bilateral swelling in the region of the frontal and nasal bone junction and bilateral epiphora. Epiphora was the main concern for the owner and the reason for further investigation and treatment. Radiographic examination showed extensive bone proliferation on the dorsal frontal and nasal bones. Computed tomographic (CT) images further characterised the periosteal proliferation as new bone formation and localised it along the frontonasal and frontolacrimal suture lines. Computed tomographic images also showed pathological changes of both lacrimal ducts. A chronic fracture was suspected to be the cause of the periosteal proliferation, and surgical treatment using 2 small 2.4 Unilock plates was chosen to stabilise the suture between the frontal and nasal bones. The swelling decreased and the epiphora resolved by 6 months post operatively. A CT examination 2 years later showed complete healing.     

Calculation Method Study of Anchoring of One Nuclear Plant

Finite element model has been built for an equipment module of one nuclear plant. Several boundary conditions were compared in this analysis to illustrate the importance of the proper boundary condition and assumptions. A standard embedment model was built to analyze the reactions of the bolts under different conditions and assumptions to get a better method for design.     

Study of Quality Management and Inspection Technology of Anchorage System

Sonoprobe method has been applied in non-destructive inspection of anchorage project. Its fundament is to cause anchor bar's elastic vibration by dynamic transient excitation and the flaws of anchor bar can be estimated or deduced by determining the transient response. The numeric solution!of hyperbolic equation by FEA indicates that the deductions should comply with the acoustic parameters such as sound velocity, vibration range, wave shape etc., when inspecting the interior flaws in grouting of anchor bar. As a non-linear dynamic system,"the artificial neural networks dealing with quality inspection of gray system have been proved efficient.     

Analytic Solution of Anchor Bolts with Dynamic Detection

Sonoprobe method has been applied in non-destructive inspection of anchorage project. Its fundament is that to use dynamic transient excitation for inducing anchor bar's elastic vibration. The flaws in the bar can be estimated or deduced by determining transient response of anchor bar. Based on the theory of elasto-dynamics, in this paper, a theoretical model of acoustic detection of anchor bar has been built up. On the mechanics field, this method means that if information of disturbance resource, boundary conditions and initial conditions has been given, the dominant equation describing medium motion would be established. That is, it leads to the problem of initial value or initial boundary value of hyperbolic type or hyperbolic-diffusibility type equation. Thereby the dynamic response could be solved. As an example, analytic solution of heterogeneous wave equation is deduced in case of bounded region.     

夯土-水硬石灰与石英砂浆液-木锚杆锚固系统性能

运用室内物理模型试验和原位试验,对基于水硬石灰与石英砂浆液的木锚杆锚固系统在夯土介质中进行了拉拔测试与杆体-浆体界面应变监测,研究了该锚固系统的锚固性能与破坏模式、杆体-浆体界面剪应变分布与传递特征。试验结果表明,该锚固系统50 cm锚固长度可以提供30~45 kN(室内)与16.2~19 kN(现场)的极限锚固力;锚固系统具有较强的延性;在加载进程中杆体-浆体界面的应力分布与传递特征具有单峰值或双峰值分布、界面应力向锚固末端传递、压应力出现在锚固段中末端等特征,表现出复杂的受力特性。研究结果表明,该锚固系统在结构形式和力学性能上适合于夯筑土遗址加固,并与遗址体具有较好的兼容性。     

喷锚网技术在皂市水库高陡边坡防护中的应用

喷锚网支护可提高高陡边坡岩土的结构强度和抗变形刚度,增强边坡的整体稳定性.根据皂市右岸上坝公路路段高边坡采用喷锚网支护的工程实践,介绍了设计方案、材料要求、施工方法、技术措施,以及现场质量管理和检测问题.     

T216节距左、右履带节钻2-20.5孔工艺及工装设计

介绍了在Ｚ３０５０ ×１６ 型摇臂钻床上利用夹具一次性装夹Ｔ２１６ 节距左、右履带节各１ 件后，逐次钻２ － ２０ ．５ 孔的工艺及工装的设计，对其定位元件的选择和操作方法及步骤等作了较详细的论述．     

Hand-assisted laparoscopic reattachment of a mesoduodenojejunal defect in a broodmare

In this report, a jejunal entrapment through a presumptive chronic mesenteric defect extending over approximately 20 cm of the duodenojejunal region was found as a cause of acute onset colic in a multiparous broodmare. Mesenteric reattachment during the initial exploratory laparotomy was deemed unsafe given the majority of the avulsion could only be palpated deep within the abdomen. Following recovery and an uneventful parturition 12 days later, the mare returned 18 days post-foaling for attempted, standing laparoscopic reattachment of the mesentery. The procedure was converted to a hand-assisted technique and reattachment completed using a mechanical suturing device and knotless, unidirectional barbed suture. The mare was discharged 3 days post-operatively, bred 28 days following discharge and a singleton pregnancy confirmed 15 days post-ovulation and 46 days following laparoscopy. There were no signs of abdominal discomfort noted in the first 8 months following surgery. In summary, a standing, right-sided hand-assisted laparoscopic approach provided effective visibility to the mesoduodenojejunal region.     

运用锚引物扩增新城疫病毒鹅源分离株基因组末端序列

在T4 RNA连接酶的作用下,将人工合成的锚引物直接与新城疫病毒（NDV）鹅源毒株ZJ1株的基因组5′末端的反转录产物及NDV基因组3′末端直接相连,然后用聚合酶链反应（PCR）和RT－PCR分别快速扩增基因组5′末端和3′末端,测序结果表明：3′末端的Leader序列为55nt,5′末端的trailer序列为114nt。将该序列与GenBank报道的NDV鸡源毒株的相应序列相比,XJ1株与6个鸡源NDV毒株的Leader和trailer序列的同源性分别为83.6%-92.7%和60.5%-63.2%。序列比较结果表明：该鹅源毒株与鸡源毒株在基因组3′端调控区有较高的同源性,而在基因组5′端的调控区同源性则较低。