湖南数字林业浅论

结合林业技术的发展，对数字林业的定义、意义进行了阐述，并根据当前湖南省林业管理实际，提出了省级数字林业系统建设的目标、原则和内容的初步设想。     

怀孕母山羊传染性胸膜肺炎PG3垂直感染试验

取健康易感怀孕母山羊3只，气管接种丝状支原体山羊亚种PG3，第28天，其中1头产出羊羔1只，第32天，剖杀3头母羊及4日龄羊羔，均见肺部有明显的山羊传染性胸膜肺炎病变，无菌抽取羊水，并剖取胎羊的肺，肝和4日龄羔羊的胸水，肺和肺门淋巴结，均培养分离出多形性支原体，用该支原体培养物作生长抑制试验均为PG3阳性，Y98阳性，Y98阴性，与接种株PG3－致，说明出羊传染性胸膜肺炎PG3可通过胎盘垂直感染胎羊。     

β-葡聚糖酶对马岗鹅红细胞免疫功能的影响

应用红细胞C3bRR花环和红细胞ICR花环试验证实，马岗鹅红细胞表面在补体C3b受体（C3bR) ,表明红细胞免疫系统（RCIS）概念也适用于这种动物。同时，通过试验证实β－葡聚糖酶对RBC－C3bR有抑制作用，对体风ICR影响不明显。     

3D Studio MAX在机械设计CAI课件制作中的应用

在机械设计CAI课件制作中，三维模型及动画是主要的内容之一。论述了应用3DStudioMAX制作三维模型及动画的方法，并介绍了3DStudioMax中的放样变形命令在制作齿轮模型、层次及正反向运动关系在建立运动机构模型中的应用技巧。     

Immunohistochemical characterization of canine prostatic carcinoma and correlation with castration status and castration time

The purpose of this study was to characterize canine prostate cancer using immunohistochemical staining specific for acinar and urothelial/ductal tissue and correlate these results with the dogs' castration status/castration time. Seventy dogs with prostate cancer were included, 71% were castrated and 29% were intact. Compared with an age‐matched control population, castrated dogs were at increased risk of prostate cancer, odds ratio 3.9. Immunohistochemical staining was performed on 58 cases. Forty‐six of the 58 stained positive for cytokeratin 7 (CK 7) (ductal/urothelial origin) and one of the 58 stained positive for prostate‐specific antigen. Dogs with CK 7‐positive tumours were younger when castrated than dogs with CK 7‐negative tumours, 2 versus 7 years (P = 0.03); dogs castrated at ≤2 years of age were more likely to be CK 7‐positive (P = 0.009). These results show that most canine prostatic carcinomas are of ductal/urothelial, androgen‐independent origin. This is consistent with the epidemiological findings, showing increased risk in castrated dogs. Canine prostate cancer may, therefore, not be a realistic model for the human disease.     

掌上电脑在二类调查中具体应用的探讨

通过3S与掌上电脑的综合运用,实现森林资源规划设计调查内外业一体化,提高了调查精度和工作效率。     

Morphological responses of bedding plants to three greenhouse temperature regimes

Seedling crops of gazania, geranium, marigold, mimulus, pansy, verbena and vinca were grown to 60% anthesis in three greenhouse temperature regimes: (a) 26 °C day/6 ± 3 °C night (LT), with a 16.5 °C mean daily temperature (MDT), (b) 26 °C day/17 ± 4 °C night, with a 21 °C MDT, and (c) variable day/night temperatures in response to heating and cooling by a phase change material energy storage module (PCM) with an 8 ± 2 °C night and a 16 °C MDT. Crops bloomed from 2 to 17 days earlier in the 26 °C/17 °C greenhouse. The morphological characteristics of all cultivars of gazania, mimulus, pansy and verbena, geranium and vinca were similar regardless of greenhouse temperature regime. Marigold diploid and triploid cultivars and mimulus were morphologically more variable than the other bedding plant species. Crops grown in the PCM and LT greenhouses had virtually identical morphological characteristics and bloomed in about the same number of days. Plant height was not affected by DIF environments in the greenhouses. The PCM and LT greenhouses had a similar MDT, but the distribution of numbers of hours of mean daily temperatures was different.     

3S技术在贵州省森林资源清查及其评价中的应用

针对目前我国森林资源清查存在的调查周期长,数据现势性差;统计总体内难以同步,数据可比性差;主观影响大,数据可靠性低等问题,在开展贵州省森林资源清查及评价工作中引进了3S技术。结果表明:林业用地的综合判读精度为93.5%,易判读地区的判对率达97%,不易判别读地区的判对率也在90%以上。本次森林资源清查共涉及林业用地面积8749639hm2,总投资约200万元,平均0.23元/hm2,外业工作历时1年,同传统的森林资源清查方法相比,取得了显著的经济效益和社会效益。     

《焊工工艺学》多媒体课件的设计与制作

本文介绍了在现代教育思想和教育理论的指导下,结合教学实践,对中等职业学校技工学校机械类焊接专业的专业课<焊工工艺学)CA1课件的设计和制作进行了分析和研究,利用Macromedia公司的多媒体制作软件Authorware7,02设计和制作<焊工工艺学>多媒体教学课件的过程.     

3H—萱草根素在小鼠体内吸收分布,排泄和代谢的初步观察

本文应用放射性同位素示综技术,初步观察了~3H-萱草根素在小鼠体内吸收分布、排泄和代谢的全过程。~3H-萱草根素口服后0.5小时,小鼠血液中放射性即达到高峰,并以低浓度维持96小时以上;其随血液循环分布于各组织器官,以胃肠组织含量最高,其次是肝脏和脾脏。萱草根素有蓄积性;一次给药和以同等剂量分次(每天一次,三天)投药后的相同时间,各组织中~3H-萱草根素的含量差异不显著。主要排泄途径是粪便,其次是尿液。经有机溶剂处理后的尿液分为水、脂二相,其放射性测量和薄板层析放射自显影结果均表明:~3H-萱草根素在体内经过代谢后结构发生了变化,从尿液中排出的不是萱草根素原形,而是其代谢产物。