我国中央山系东段演化及其对黄河河道及东平湖的影响

根据2603a有史记载以来黄河河道变迁和春秋以来东平湖演变历史，本文提出我国中央山系东段碰撞和松弛导致的地势上升和下降是影响黄河河道变迁和东平湖演变的重要因素。山系碰撞上升造成黄河河道向北西迁移，东平湖湿地北漫；山系松弛下降导致黄河河道向东南迁移，东平湖南泛。     

TOTAL ANOMALOUS PULMONARY VENOUS CONNECTION IN A FOAL

An 8-day-old Arabian-Morgan cross colt underwent cardiac evaluation. The foal was tachycardic, tachypneic, exercise intolerant and had a loud right-sided heart murmur and cyanotic mucous membranes. Total anomalous pulmonary venous connection was diagnosed with echocardiography and confirmed at postmortem examination. Total anomalous pulmonary venous connection is a very rare congenital cardiac abnormality that has not been reported before in the horse.     

Magnetic resonance imaging of a brain abscess in a 10-month-old filly

The purpose of this paper was to correlate the magnetic resonance imaging (MRI) characteristics of a mature brain abscess in a horse with histopathologic alterations of brain tissue. Eight months after the onset of clinical signs, MRI of the brain of a 10-month-old filly was performed. A large space-occupying lesion in the right cerebral hemisphere was identified. This space-occupying lesion was delineated by a thick and well-defined capsule that was isointense to brain parenchyma on the T1-weighted images and with a markedly hypointense on the T2-weighted images. The identification of such a capsule is highly diagnostic of a mature brain abscess. The lesion seen on MR images was confirmed at necropsy where a large abscess of the right hemisphere was observed. Streptococcus zooepidemicus and Pseudomonas aeruginosa were isolated from the abscess. Based on histopathologic examination, the signal characteristics of the capsule on T1-weighted and T2-weighted images were found to be due to the presence of numerous hemosiderin-laden macrophages. These results are in agreement with previous studies on human patients. This report confirms the value of MRI in the diagnosis of equine brain diseases.     

Computed tomographic anatomy of the canine cervical vertebral venous system

Computed tomographic (CT) venography of the cervical vertebral canal was performed in six, clinically normal, adult mixed-breed dogs from 14 to 23 kg. After dogs were euthanized and saline perfused, a gelatin and iothalamate mixture was injected into the right external jugular vein. Contiguous, 4-mm-thick CT images were obtained with dogs in sternal recumbency. Dogs were kept in the same position as for the CT scan and frozen to approximately -8 degrees C. All post-contrast CT images were analyzed using similar bone window and level settings. Additional multiplanar reformatted dorsal images were obtained in all dogs. The frozen cadavers were sectioned through the cervical region extending from the occiput to T1 at approximately 8-mm intervals. The frozen sections were then compared with the CT images. The CT appearance of the normal cervical vertebral venous system was described and illustrated. Components such as the internal vertebral venous plexus, interarcuate veins, intervertebral veins, and vertebral veins were clearly identified on the CT images.     

基于PID神经网络的滑翔增程制导炮弹解耦控制系统设计

采用Wiener空间的两个算子以及相关的恒等式，提出了新的方法证明了关于高斯过程函数的中心极限定理，并给出了该中心极限定理的应用实例.     

房山区中南部沟域景观资源分析及规划探讨

本文从风景园林规划的基本目的入手,通过实践和调研房山区中南部沟域景观资源,分析地区内各景观体系类型,分类整合地区景观资源特征,挖掘房山中南部景观资源本身价值,并通过对房山区中南部地区进行上方花海沟域景观规划,系统研究房山区中南部沟域地区的景观建设发展方向,为深层综合开发、培育和保护当地景观资源提出改进措施,亦为房山区中南部的沟域经济的建设发展提供必要的理论依据。     

推行集中供热设备标准化、系统化管理的探讨

针对集中供热设备标准化、系统化管理,提出了建议与探讨,能更好的满足节能减排和优化城市环境的要求。     

浅析城市中心广场道路铺装材料生态性设计

道路铺装设计是城市中心广场设计中的重要组成部分,现越来越受到人们的重视。为创造出生态性的城市中心广场道路铺装景观,在分析城市中心广场道路铺装材料在生态性设计方面存在问题的基础上,提出城市中心广场道路铺装材料生态性设计的原则及要点,即在不影响正常使用的前提下尽量实现生态性要求,多应用透水、透气的环保铺地材料,遵循经济节约的原则,循环利用部分铺装材料,并以合肥万达广场道路为例,详细叙述了其道路铺装材料的基本形式和存在问题,进一步提出具体改造方案。     

Case of suspected theobromine poisoning in dairy cattle

High-yielding dairy cows collapsed and died displaying signs of a disturbed central nervous system (muscle tremor, convulsion) and a considerably reduced body condition score. An intense diagnostic screening did not allow to confirm a definite diagnosis. Therefore, further analyses including an evaluation of feeds and feeding were initiated. The herd was fed a total mixed ration (TMR) based on corn and grass silage of moderate nutritive value supplemented with various amounts of chocolate chips. In retrospect, the amount of chocolate chips added to the respective TMR batches could not be quantified. These chips were purchased from a company producing bakery and chocolate products for human consumption and added to the silage and therefore to the TMR in order to increase the energy intake of the animals. Because the TMR, which was fed during the time of the incidence, was no longer available, a sample of a later batch of silage was examined. The amount of chocolate chips was quantified (0.44% per fresh matter), and a theobromine analysis was performed in the chocolate chips of the available batch (69.7 mg/100 g fresh matter). Because of the possible link between chocolate intake and observed signs, an immediate cessation of using the chocolate chips was recommended in addition to an optimisation of the TMR, that is an increase of the energy density. Even though the theobromine intake during the time of the incidence is unknown and information about toxicity of theobromine in ruminants is limited, we suspect that the feeding of chocolate in this case caused all signs including the sudden death of the cows. Further reasons are that no differential diagnoses were established and the problems at the farm stopped after removing the chocolate from the TMR.