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Integration of CAPP with CAD Based on Solid Edge

厦门大学学报（自然科学版） 2002年第S1期41卷 175-176页

作者： CHEN dao-li (College of Mechano-Automation, Wuhan University of Science and tech nology, Wuhan 430081, China)

CAD technique and its software products have been d ev eloped independently of CAPP, but the market’s requirements on reducing lead-t ime of a new product and promoting automation of design and manufacture processe s need integration of CAPP with CAD. the base of CAXs’ integration in product d esign and manufacture is information integration. there are several information integration approaches, for example, by data format transition through special d ata interface, or by standard format file for data exchange (e.g. based on S tEP),etc, but the integrating approach based on PDM is a more advanced and effic ient one. the approach is based on a common database. the feature model data of a product created by the CAD sub-system is stored in the common database, and the CAPP or CAM sub-system can get access to the data for its own work, by whic h repeated input of the data is avoided and data redundancy is eliminated. t he integration approach of CAPP with CAD discussed in this paper is based on the approach. Solid Edge, one of the CAD software products of UGS company is a 3-D modeling software based on parametric feature modeling technique, which is easy to learn and use, so suitable for small and medium manufacturers’ application. the feature data of the part model created by Solid Edge Part includes geometri c and topologic information of the part which provides basic data needed by CAPP , but like other 3-D feature-based modeling software, no precision and materia l information which is also essential for CAPP. In this paper, an approach is pr esented by which the precision features and material features of the part are ad ded into the 3-D CAD part model of geometric feature. So-called precision features include dimension tolerance, shape tolerance and position tolerance and so-called material features include material type and hardness. All these data are expressed by a set of characters which, combined with the surface t ype name of the related geometric feature, i

关键词： CAPP CAD integration solid edge

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Exponential Dichotomies and Fredholm Operators of Dynamic Equations on time Scales

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Applied Mathematics 2019年第1期10卷 39-50页

作者： Le Huy tien Le duc Nhien Department of Mathematics Mechanics and Informatics Vietnam National University at Hanoi Hanoi Vietnam

For time-varying non-regressive linear dynamic equations on a time scale with bounded graininess, we introduce the concept of the associative operator with linear systems on time scales. the purpose of this research is the characterizations of the exponential dichotomy obtained in terms of Fredholm property of that associative operator. Particularly, we use Perron’s method, which was generalized on time scales by J. Zhang, M. Fan, H. Zhu in?[1], to show that if the associative operator is semi-Fredholm then the corresponding linear nonautonomous equation has an exponential dichotomy on both?t?+?and?t-.??Moreover, we also give the converse result that the linear systems have?an exponential dichotomy on both?t?+?andt-??then the associative operator is Fredholm on?t.

关键词： Exponential Dichotomy Fredholm Operator time Scales Linear Dynamic Equation

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Expression of telomerase activity and oxidative stress in human hepatocellular carcinoma with cirrhosis

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World Journal of Gastroenterology 2003年第8期9卷 1859-1862页

作者： dao-YongLiu Zhi-HaiPeng Guo-QiangQiu Chong-ZhiZhou DepartmentofGeneralSurgery ShanghaiNo.5People'sHospitalShanghai200240China DepartmentofGeneralSurgery shanghaiFirstPeople’sHospitalShanghai200080China

AIM: to study the expression and significance of telomerase activity and oxidative stress in hepatocellular carcinoma (HCC) with ***: In this study, tRAP-ELISA assay was used to determine telomerase activity in 21 cases of HCC as well as in 23 cases of hepatic cirrhosis. Malondialdehyde(MDA),glutathione S-transferase (GSt) and total anti-oxidative capacity (t-AOC) were also examined in the same samples with human MDA, GSt and t-AOC ***: Eighteen of 21 cases of HCC were found to have increased telomerase activity, whereas only three of the 23non-cancerous cirrhotic samples were found to have weak telomerase activity, and the difference was significant (P＜0.001). No significant difference in telomerase activity was detected according to different tumor size, tumor stage,histological grade, HBsAg, contents of albumin, bilirubin,ALt, AFP, r-Gt and platelet. there were significant differences between HCC and cirrhosis in the expression of MDA, GSt and t-AOC respectively. telomerase activity correlated positively with the content of MDA (P＜0.05).CONCLUSION: telomerase activation is the early event of carcinogenesis, which is not correlated with clinicopathological factors of HCC. the dysfunction of the anti-oxidative system is closely correlated with the progression from cirrhosis to hepatocellular carcinoma. Oxidative stress may contribute partly to telomerase activation.

关键词：肝细胞癌肝硬化氧化应激端粒酶

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棉花自动化滴灌灌水频次对土壤墒情及产量的影响

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节水灌溉 2024年第9期9卷 89-95页

作者：卡地尔江·米吉提阿布都卡依木·阿布力米提冯济慈马道坤晓开提江·卡斯木新疆职业大学乌鲁木齐830013 新疆中农智水科技有限公司新疆昌吉8311003 新疆农业大学乌鲁木齐830052 中国农业大学北京100089 新疆维吾尔自治区水利管理总站乌鲁木齐830000

为研究棉花自动化滴灌灌水频次对土壤墒情及产量的影响,于2019-2020年在新疆昌吉农业园区现代化灌溉示范区,对棉花自动化滴灌在相同灌溉定额(W=4800 m^(3)/hm^(2))、施肥量(尿素300 kg/hm^(2),二胺234.67 kg/hm^(2),硫酸钾117.33 kg/hm^... 详细信息

为研究棉花自动化滴灌灌水频次对土壤墒情及产量的影响,于2019-2020年在新疆昌吉农业园区现代化灌溉示范区,对棉花自动化滴灌在相同灌溉定额(W=4800 m^(3)/hm^(2))、施肥量(尿素300 kg/hm^(2),二胺234.67 kg/hm^(2),硫酸钾117.33 kg/hm^(2))及其他农艺管理措施与大田保持一致时,试验设置4个处理,分别对各处理3个重复进行灌水频次试验研究。结果表明:灌水频次处理(t1:12次、t2:10次、t3:8次、t4:6次)时棉花籽棉产量分别为5751.72、5434.22、5353.71、5261.89 kg/hm^(2),水分利用效率为1.20、1.13、1.20、1.10 kg/m^(3),其0~40 cm深度平均土壤含水率为23.84%~34.51%、21.45%~32.97%、19.52%~32.67%、16.94%~32.37%;在气候、土壤、田间及管理措施等条件相同的情况下,推荐棉花生育期内灌水次数12次、灌水周期6 d作为棉花自动化滴灌灌水频频次和灌水周期。

关键词：自动化滴灌灌水频次土壤含水率产量土壤墒情灌水周期

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德意志联邦共和国教师培训的经验及其对越南教师培训改革的启示

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佳木斯职业学院学报 2017年第5期33卷 202-203页

作者： [越南]BUI Minh duc NGUYEN thanh Hung NGUYEN thi Ngoc Be dao thi Viet Anh 越南河内师范大学二越南顺化师范大学心理教育系

为了满足普通教育计划改革的要求,需要改革教师培训计划。旨在建设和发展一支数量足够、结构合理、高素质、高水平的教师队伍,提高各师范大学教师培训工作的质量与效果。本文主要就处于世界领先水平的德意志联邦共和国教师培训工作进行... 详细信息

为了满足普通教育计划改革的要求,需要改革教师培训计划。旨在建设和发展一支数量足够、结构合理、高素质、高水平的教师队伍,提高各师范大学教师培训工作的质量与效果。本文主要就处于世界领先水平的德意志联邦共和国教师培训工作进行介绍,力图找出越南可借鉴的经验,提出了越南教师培训改革的若干建议。

关键词：经验教师培训质量效果教师

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Retention behaviour of carboxylic acid methyl esters in supercritical fluid chromatography

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Chinese Journal of Chemistry 1994年第2期12卷 129-137页

作者： SHEN, Yu-Feng WANG, Qing-Hai ZHU, dao-Qian ZHOU, Liang-Mo Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116012, China Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116012 China

the study on retention behavior in supercritical fluid chromatography (SFC) is necessary to understand the mechanism of the various interactions in SFC. the retention of SFC in carboxylic acid methyl ester/polymethylsiloxane/CO2 system was studied systematically and the retention behavior of this kind of compounds under various typical operation conditions was described using the method of an alternative unified theory of chromatographic retention. the results illustrated that expression: Ink.= a + b/t + cp + dp/t + ep2/t can be used to describe quantitatively the retention behavior of carboxylic acid methyl ester/polymethylsiloxane/CO2 system in the ranges of reduced density from 0.549 to 1.411. It was also found that the entropy of solute in stationary phase is dependent on the density of supercritical fluid (SF) under typical operating conditions of SFC.

关键词： Supercritical fluid chromatography (SFC) retention behaviour carboxylic acid methyl esters retention equation of SFC.

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Management and Prognosis of Early Postpartum Hemorrhage in African Low Setting Health

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Open Journal of Obstetrics and Gynecology 2018年第1期8卷 1-9页

作者： Youssouf traoré Ibrahima téguété Amadou Bocoum Mamadou traoré Seydou dao Marion Koko Bomini Niani Mounkoro Amadou Dolo Department of Gynecology and Obstetrics Gabriel Touré Teaching Hospital Bamako Mali Department of Gynecology and Obstetrics Yopougon Teaching Hospital Abidjan Cote d’Ivoire

Early postpartum hemorrhage is one of the major causes of maternal death in the world especially in developing countries. Its management often relieves resuscitation that is often difficult to set up in our countries and sometimes based on invasive and mutilate surgery. Objectives: the purpose of this survey was to report frequency of this pathology, to describe its management and the factors that influence the prognosis of early postpartum hemorrhage in low setting health in Africa. Method: Authors conducted a prospective study that analyzed early postpartum hemorrhage in the motherhoods of Gabriel touré teaching hospital and community five health reference center of the district of Bamako. It took place from January, 2015 to December, 2016. the study concerned all the cases of early postpartum hemorrhage according to WHO definition. Statistical tests used were X2 or Fisher test, its 95% confidence interval (CI95%), p value was significant if Results: Early postpartum hemorrhage frequency has been 0.7% (62 cases for 8.885 deliveries). Sixty nine and one percent (69.1%) of patients have been blood fluid transfused. Obstetric treatment dominated by uterine revision (30.7%). Hysterorraphy (4.0%), hysterectomy (3.0%), suture of uterus injuries (15.7%), hypo gastric artery ligature (2.0%) and B-Lynch compression suture (2.0%) have been the main practiced surgical operations. No satisfy blood transfusion need was 26.9%. the main risk factors of early PPH were high parity (p = 0009;RR = 3.04;CI95% [2.80 - 5.11]), prolonged labor (p = 0004;RR = 4.00;CI95% [3.06 - 10.02]), oxytocin/prostaglandin use (p = 0003;RR = 1.47;CI95% [1.17 - 3.16]). Eleven of maternal occurred (11.8%). Conclusion: Early postpartum hemorrhage is still a severe event in developing countries especially. Its management sometime consisted to invasive cares. Maternal prognosis that is influenced by unsatisfied blood need and late management is marked by high lethality.

关键词： Early Postpartum Hemorrhage Risk Factors Surgery Maternal Death

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改进的ANFIS方法在化工过程故障诊断中的应用

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华东理工大学学报（自然科学版） 2006年第8期32卷 985-988页

作者：宋欣黄道华东理工大学自动化工程中心上海200237

针对复杂的化工过程,在原有的自适应神经模糊推理系统(ANF IS)的基础上,结合主元分析和神经网络,提出了一种改进的自适应神经模糊推理故障诊断系统,并且分别将ANF IS和改进的ANF IS方法应用于tE(t ennessee E astm an)模型的故障诊断。... 详细信息

针对复杂的化工过程,在原有的自适应神经模糊推理系统(ANF IS)的基础上,结合主元分析和神经网络,提出了一种改进的自适应神经模糊推理故障诊断系统,并且分别将ANF IS和改进的ANF IS方法应用于tE(t ennessee E astm an)模型的故障诊断。两种方法均具有较高的精度,但改进的ANF IS具有运算速度快、结果清晰的优点,所以更适用于实际工业中。

关键词：故障诊断自适应模糊神经系统(ANFIS) 主元分析神经网络 tE

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Safe antifungal lipopeptides derived from Bacillus marinus B-9987 against grey mold caused by Botrytis cinerea

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Journal of Integrative Agriculture 2017年第9期16卷 1999-2008页

作者： GU Kang-bo ZHANG dao-jing GUAN Cheng XU Jia-hui LI Shu-lan SHEN Guo-min LUO Yuan-chan LI Yuan-guang State Key Laboratory of Bioreactor Engineering East China University of Science and TechnologyShanghai 200237P.R.China Shanghai Zeyuan Marine Biotechnplogy Co.Ltd. Shanghai 201203P.R.China

Agricultural application studies, including field experiments and acute toxicity tests, were conducted for lipopeptides secreted by marine-derived Bacillus marinus B-9987. Benefiting from commercially available scaled-up lipopeptide purification, the sample of impurities（isolated from target lipopeptides）, raw extracted sample（purity： 9.08%）, partially purified sample（purity： 20.86%）, and highly purified sample（purity： 87.51%） were prepared from B. marinus B-9987 fermentation broth, and used in lab-scale antagonism tests, field experiments, swarming motility tests, and acute toxicity tests. Operations and conditions in field experiments were consistent with the Pesticide-Guidelines for the Field Efficacy trials（GB/t 17980.28-2000）, and acute toxicity tests were executed according to toxicological test Methods of Pesticides for Registration（GB 15670-1995）. In agar diffusion tests in vitro and pot tests in vivo, all lipopeptide samples with different purities significantly inhibited Botrytis cinerea; meanwhile the sample of impurities isolated from target lipopeptides were not effective against B. cinerea. Results of lab-scale tests showed that the target lipopeptides were effective substances against B. cinerea. thus, partially purified and raw extracted samples were used in field experiments instead of the highly purified sample for cost saving. In the field experiments against rose grey mold, biological control efficacy of 500 mg L–1 lipopeptides reached 67.53%, slightly lower than 74.05% reached by the agrochemical pyrimethanil. However, pyrimethanil severely suppressed B. marinus B-9987, whereas the lipopeptides promoted swarming motility and biocontrol efficacy of Bacillus biomass. Lipopeptides at 87.51% purity were tested for systemic acute toxicity and confirmed as low-toxicity substances. In conclusion, low-toxicity lipopeptides were potential alternatives to agrochemicals, and they also performed good promotion when combined with homologous biological contro

关键词： Bacillus marinus marine-derived lipopeptide field experiment acute toxicity test low-toxicity substance swarming motility Botrytis cinerea

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Biot平面固结分析的流形单元法

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计算力学学报 2005年第3期22卷 274-280页

作者：凌道盛叶茂浙江大学建筑工程学院浙江杭州310027

基于数值流形方法和有限覆盖技术,提出了适用于Biot固结分析的三节点平面协调流形元。由于土骨架位移和孔隙水压力的节点覆盖函数(Lagrange插值函数)阶次可分别任意选择,该单元是一组满足位移和孔压插值阶次不同且所有节点具有相同自由... 详细信息

基于数值流形方法和有限覆盖技术,提出了适用于Biot固结分析的三节点平面协调流形元。由于土骨架位移和孔隙水压力的节点覆盖函数(Lagrange插值函数)阶次可分别任意选择,该单元是一组满足位移和孔压插值阶次不同且所有节点具有相同自由度数的新型u-p混合模式单元,并且更加方便编程。数值分析表明,位移和孔压的节点覆盖函数阶次分别取一次和零次的流形单元(t1-0)是该组单元中最为有效的。与等价四边形等参元相比,t1-0流形元能给出精度更高的初期孔压和位移。

关键词： Biot固结有限覆盖数值流形方法

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