共查询到20条相似文献,搜索用时 46 毫秒
1.
《科技视界》2016,(24)
单片机因其价格低廉、体积小、应用领域广,成为高校自动化专业的学生必修的一门专业基础课程。历年来学生普遍反映课程理论内容抽象、难以理解,实验操作程序复杂,无法有效、系统、连贯的完成单片机课程的学习。针对学生学习中提出的种种困惑,老师们也在不断尝试改变单片机原理与应用课程的教学方法,努力使学生掌握课程重点,理解课程难点。随着信息化时代的来临,信息化教学模式被逐渐应用在课堂上,越来越受到全国各类层次院校的重视,特别是每年全国举办的"创新杯"电类信息化教学设计和说课比赛的开展,不断的推动着高校课程教学改革。可以说信息化教学模式在课程中的灵活应用是今后教学的必然趋势。 相似文献
2.
3.
根据当前教学的不断改革,文章将针对高职单片机与嵌入式系统课程模块化教学方案实施探讨。因为该门学科的理论性以及实践性比较强,所以对高职学生来讲有一定的学习难度,结合当前高职院校的教师目标,对教学进行创新与改革,提出了课程模块化的教学方案,并在模块化教学理论的基础上进行创新,使学习的知识更具结构化,同时在课堂教学上也具有一专属的模式,使学生掌握正确的学习方式,合理安排学习的实践。文章将从高职单片机与嵌入式系统课程模块化教学方案实施的背景与原因进行分析,让教师对课堂进行合理的安排与设计,从而寻找出有效的教学策略。 相似文献
4.
5.
6.
7.
8.
9.
《兽医传染病学》是兽医学科学生重要的专业必修课之一。对该课程的教学内容、教学方法、教学手段、实践教学和学生考试等方面进行了改革和探索,将现代教学手段与传统教学方法相结合,提出了比较系统的改革方案。实践证明,激发了学生对《兽医传染病学》课程的兴趣,可充分发挥学生的主观能动性,提高了教学质量,同时解决了《兽医传染病学》课程教学"课时减少"与"内容不断增多"的矛盾。 相似文献
10.
《机械基础》是机械类学生的重要专业技术基础课,该课程的教学效果直接影响着学生专业课程的学习。面对中职学生知识基础薄、学习自制力低的情况,如何提高《机械基础》教学质量,提高学生的学习兴趣和主动性,本文针对该教学的改进作一些探讨。 相似文献
11.
12.
13.
Evidence for the non-involvement of the uterus in the lifespan of the corpus luteum in the cyclic dog 总被引:1,自引:0,他引:1
Progesterone levels in peripheral blood of dogs were analysed during the cycle in which hysterectomy (n = 5) or sham surgery (n = 3) was performed as well as during the cycle of dogs (n = 5) hysterectomized at least one year prior to this study; the data were compared with the findings in control dogs (n = 3). The averages of the duration of the luteal period observed in the three experimental groups were not significantly different from those of control dogs. Immediately after surgery, the progesterone level decreased from 25 to 50% of the presurgical level, but returned to presurgical level in about four days. Prolactin levels were elevated for about 30 h after surgery. Nevertheless, the averages of the mean prolactin levels for each animal during the luteal period of the experimental groups were not significantly different from those of control dogs. It is concluded that in the dog, the uterus is not involved in the lifespan of the cyclic corpus luteum. 相似文献
14.
16.
嗅源是军犬嗅觉作业训练的依据.军犬鉴别中嗅源能力的培养在整个鉴别训练中占有重要地位,关系到鉴别训练的成败和鉴别能力的提高.所以,军犬在嗅认嗅源时必须按照训犬员的指令充分、细致地感受嗅源气味,并且对嗅源气味产生兴奋反应.如何培养军犬充分嗅认嗅源以及及时解决嗅认过程中出现的问题,成为我们进行鉴别训练的关键.…… 相似文献
17.
Meschan EM Peham C Schobesberger H Licka TF 《Veterinary journal (London, England : 1997)》2007,173(3):578-584
As there is no statistical evidence that saddle fit influences the load exerted on a horse's back, this study was performed to assess the hypothesis that the width of the tree significantly alters the pressure distribution on the back beneath the saddle. Nineteen sound horses were ridden at walk and trot on a treadmill with three saddles differing only in tree width. Kinetic data were recorded by a sensor mat. A minimum of 14 motion cycles were used in each trial. The saddles were classified into four groups depending on fit. For each horse, the saddle with the lowest overall force (LOF) was determined. Saddles were classified as "too-narrow" if they were one size (2 cm) narrower than the LOF saddle, and "too-wide" if they were one size (2 cm) wider than the LOF saddle. Saddles two sizes wider than LOF saddles were classified as "very-wide". In the group of narrow saddles, the pressure in the caudal third (walk 0.63 N/cm(2)+/-0.10; trot 1.08 N/cm(2)+/-0.26) was significantly higher compared to the LOF saddles (walk 0.50 N/cm(2)+/-0.09; trot 0.86 N/cm(2)+/-0.28). In the middle transversal third, the pressure of the wide saddles (walk 0.73 N/cm(2)+/-0.06; trot 1.52 N/cm(2)+/-0.19) and very-wide saddles (walk 0.77 N/cm(2)+/-0.06; trot 1.57 N/cm(2)+/-0.19) was significantly higher compared to LOF saddles (walk 0.65 N/cm(2)+/-0.10/ 0.63 N/cm(2)+/-0.11; trot 1.33 N/cm(2)+/-0.22/1.27 N/cm(2)+/-0.20). This study demonstrates that the load under poorly fitting saddles is distributed over a smaller area than under properly fitting saddles, leading to potentially harmful pressures peaks. 相似文献
18.
19.
Observations on the Pathology of the Spleen of the Cat 总被引:1,自引:0,他引:1
Abstract— Lesions were found in the spleen of four of sixty-three cats examined post mortem in the department, and comprised two examples of lymphosarcoma, one of chronic fibrinous peritonitis and one of subcapsular haematoma. Abnormalities were found in two cat spleens received from veterinary surgeons in general practice. In one cat the abnormalities were an haemangiosarcoma with secondary deposits in the liver and in the other extensive mast cell infiltration. In addition lesions were detected in the spleen of three of eighty-seven cats examined post mortem in general practice. The lesions were: multiple secondary deposits of adenocarcinoma from a primary tumour of the mammary gland, a ruptured spleen and a foreign body below the splenic capsule. Résumé— L'examen microscopique de soixante-trois chats pratiqué dans le service a permis de rencontrer quatre fois des lésions de la rate, dont deux lymphosarcomes, une péritonite capsulaire fibrineuse et un hématome sous-capsulaire. D'autre part des lésions ont été trouvées dans deux rates de chat expédiées par des vétérinaires exerçant en pratiaue générale. Chez un chat il s'agissait d'un htmangiosarcome avec métastases hépatiques et chex l'autre d'une infilt ation diffuse par des mastocyta. De plus, on a rencontré des llésions dnas la rate de trois chats parmi quatre-vingt sept autopsies effectuées dans le cadre d'une clientèle génárale. Ces iésions étaient dés métastases multiples d'un adénocarcinome dont la tumeur primitive siègeait dam la glande mammaire, une rupture de la rate et un corps érangers sou capsulaire. Zusammenfassung— Läsionen der Milz wurden bei vier von dreiuiidsechzig in dieser hbteilung sezierten Katzen gefunden, und zwar in zwei Fällen ein Lymphosarkom, in einem Falle eine chron-ische fibrinöse Peritonitis und in einem ein subkapsuläres Hématom. Anomalien fanden sich auch in der Milz von zwei Katzen, die aus der tierxrztlichen Praxis eingesandt wurden. Bei der einen Katze war dies ein Hämangiosarkom mit Metastasen in der Leber, bei der anderen eine weitläufige Infiltration der Mastzellen. Außerdem wurden bei drei von siebenundachtzig in der Praxis sezierten Katzen Milzläsionen gefunden. Diese bestanden am multiplen Metastasen eines Adenokarzinoms der Brustdrüse, einer Milzzerreissung und einem Fremdkörper unterhalb der Milzkapsel. 相似文献