维普中文期刊产品整合服务
21篇 您的检索式:作者名="CAO Minhe"
    题名 作者 年代 出处 被引量
1蒙脱土改性杨木板材的工艺研究Ⅰ:浸渍改性处理工艺显示文摘采用纳米蒙脱土浸渍改性普通杨木板材,提高板材的密度、力学性能以及尺寸稳定性。试验结果表明,改性处理后板材的密度、尺寸稳定性和各项力学性能都得到了显著提高,最佳改性工艺条件为:预压缩率为30%、预压温度为70℃、浸渍液浓度为4%、浸渍时间为120 min。蒙脱土不仅均匀分布于杨木内部,还与木材组分发生交联反应。与杨木素材比,处理材的刚度增加了10.92%,热稳定性能也得到显著提高。纳米蒙脱土改性处理杨木板材为地板行业提供了良好的新型材料,扩大速生低质杨木材料的使用范围。范祥林 王新洲 邓玉和 蒋姗姗 CAO QUOC AN 董葛平 TRAN MINH TOI 2016中南林业科技大学学报2016,36,4:6
2废弃杨木水泥模板纤维特性及纤维板的研究显示文摘以废弃杨木水泥模板纤维为原料制造纤维板,实现杨木的循环利用。对水泥模板以及分离好的纤维性能进行测试分析,并分别以废弃杨木水泥模板纤维、新鲜杨木纤维为原料制造不同密度的纤维板,讨论原料特性和施胶量对板材性能的影响。研究结果表明:废弃杨木水泥模板表面碳元素含量高于杨木单板表面,而水泥模板表面的氧元素含量较低;废弃杨木水泥模板纤维的堆积密度与新鲜杨木纤维基本相同;当用水泥模板制得的纤维板密度达到0.75 g·cm-3时,板材的力学性能和吸水厚度膨胀率(TS)值均优于其他密度的板材,当施胶量大于等于12.0%时,板材的弹性模量(MOE),静曲强度(MOR),内结合强度(IB)性能均能满足国家标准值的要求。因此,废弃杨木水泥模板完全可以替代普通杨木制造纤维板。PHAM Tuong Lam 王新洲 邓玉和 董葛平 TRAN Minh Toi CAO Quoc An 2014浙江农林大学学报2014,31,6:2
3Ecoregional variations of aboveground biomass and stand structure in evergreen broadleaved forests显示文摘Biotic and abiotic factors control aboveground biomass(AGB)and the structure of forest ecosystems.This study analyses the variation of AGB and stand structure of evergreen broadleaved forests among six ecoregions of Vietnam.A data set of 1731-ha plots from 52 locations in undisturbed old-growth forests was developed.The results indicate that basal area and AGB are closely correlated with annual precipitation,but not with annual temperature,evaporation or hours of sunshine.Basal area and AGB are positively correlated with trees>30 cm DBH.Most areas surveyed(52.6%)in these old-growth forests had AGB of 100–200 Mg ha^-1;5.2%had AGB of 400–500 Mg ha^-1,and 0.6%had AGB of>800 Mg ha^-1.Seventy percent of the areas surveyed had stand densities of 300–600 ind.ha^-1,and 64%had basal areas of 20–40 m^2 ha^-1.Precipitation is an important factor influencing the AGB of old-growth,evergreen broadleaved forests in Vietnam.Disturbances causing the loss of large-diameter trees(e.g.,>100 cm DBH)affects AGB but may not seriously affect stand density.Tran Van Do Mamoru Yamamoto Osamu Kozan Vo Dai Hai Phung Dinh Trung Nguyen Toan Thang Lai Thanh Hai Vu Thanh Nam Trieu Thai Hung Hoang Van Thang Tran Duc Manh Cao Chi Khiem Vu Tien Lam Nguyen Quang Hung Tran Hoang Quy Pham Quang Tuyen Trinh Ngoc Bon Nguyen Thi Thu Phuong Ninh Viet Khuong Nguyen Van Tuan Dang Thi Hai Ha Tran Hai Long Dang Van Thuyet Dang Thinh Trieu Nguyen Van Thinh Tran Anh Hai Duong Quang Trung Nguyen Van Bich Dinh Hai Dang Pham Tien Dung Nguyen Huy Hoang Le Thi Hanh Phan Minh Quang Nguyen Thi Thuy Huong Hoang Thanh Son Nguyen Thanh Son Nguyen Thi Van Anh Nguyen Thi Hoai Anh Pham Dinh Sam Hoang Thi Nhung Hoang Van Thanh Nguyen Huu Thinh Tran Hong Van Ho Trung Luong Bui Kieu Hung 2020Journal of Forestry Research2020,31,5:1
4Layered hybrid organic-inorganic nanobelts: synthesis and removal of trace heavy metal ions显示文摘ZHU Yansao CAO Minhe MA Xiaoyi 2012J Chem Soc Dalton Trans2012,41,23:1
5利用废弃杨木水泥模板生产纤维板的研究显示文摘利用废弃杨木水泥模板制造纤维板,以实现保护环境,综合利用有限资源的目的。首先对废弃水泥模板组成单元-单板的密度、强度、吸水性和微观构造进行研究,并分析其纤维得率。在此基础上,以废弃水泥模板为原料制造不同密度的纤维板,并与杨木纤维及水泥模板纤维为原料制造不同比例的混合纤维板进行性能对比分析。结果表明:废弃水泥模板的单板气干密度、弹性模量和静曲强度以及纤维得率均高于普通杨木单板,而吸水厚度膨胀率小于普通杨木单板;当用水泥模板制得的纤维板密度达到0.75 g/cm3时,板材的力学性能和TS值均优于其他目标密度的板材,各项力学性能都达到国家标准的要求,且超过了普通杨木纤维板,说明废弃杨木水泥模板完全可以作为纤维板生产的好原料。PHAM TUONG LAM 邓玉和 王新洲 TRAN MINH TOI 杨莹 王向歌 董葛平 CAO QUOC AN 2014中南林业科技大学学报2014,34,3:1
6Emerging Technologies for Telemedicine显示文摘Cao Duc Minh Shuji Shimizu Yasuaki Antoku 0,,1:1
7显示文摘Liu Hanxing Guo Liling Cao Minhe 2004Materials Science and Engineering B2004,113,2:1
8Applications of a new ecosystem model to study the dynamics of phyto- plankton and nutrient in the Ariake Sea, west coast of Ky- ushu, Japan显示文摘Nguyen Thi Minh Hang Nguyen Cao 2009Journal of Marine Systems2009,75,12:1
9Convergence Improvement of Efficiency-optimization Control of Induction Motor Drives显示文摘Cao Minh Ta Yoichi Hori 2001IEEE Trans Industry applications2001,37,6:1
10The Vegetation Coverage Dynamic Coupling with Climatic Factors in Northeast China Transect显示文摘Qin Nie Jianhua Xu Minhe Ji Lei Cao Yang Yang Yulian Hong 2012Environmental Management2012,,3:1
11Combining SnO_(2-x)and g-C_(3)N_(4)nanosheets toward S-scheme heterojunction for high selectivity into green products of NO degradation reaction under visible light显示文摘NOx emissions cause many negative impacts on the living environment.The photocatalysis of semiconductors is superior for nitric oxide(NO)degradation due to their low redox potential.In this report,we combine SnO_(2-x)/g-C_(3)N_(4)heterojunction photocatalyst toward the high selectivity into green products under visible light illumination.Results show that SnO_(2-x)/g-C_(3)N_(4)heterojunction degraded 40.8%of NO,which is 1.6 times higher than that of g-C_(3)N_(4).In addition,the selectivity coefficient of SnO_(2-x)/g-C_(3)N_(4)is higher 3 times than both pure SnO_(2-x)and g-C_(3)N_(4).Furthermore,SnO_(2-x)/g-C_(3)N_(4)expresses a superior stability for NO photocatalytic-degradation after five cycles.The scavenger trapping test results,and electron spin resonance(ESR)analysis also provide more understanding of the charge transfer mechanism of materials.SnO_(2-x)/g-C_(3)N_(4)heterojunction shows a high removal efficiency of NO gas,making it an up-and-coming environmental treatment candidate.Pham Van Viet Thanh-Dat Nguyen Dai-Phat Bui Cao Minh Thi 2022Journal of Materiomics2022,8,1:1
12Combining NMR and density logs for petrophysieal analysis in gas-bearing formations 显示文摘Freedman R Chanh Cao Minh 1998Paper II presented at the SPWLA 39th Annual Logging Symposium1998,,:1
13Electrochemical Immunosensor for Detection of Atrazine Based on Polyaniline/Graphene显示文摘In this study,a novel layer-by-layer polyaniline/graphene(PANi/Gr)structure for electrochemical detection of atrazine was developed.Gr film was synthesized by thermal chemical vapor deposition(CVD)method and transferred onto the PANi-predeposited microelectrode.The properties of PANi/Gr film were thoroughly investigated by high-resolution transmission electron microscopy and Raman techniques.The most attractive feature of this system is a suitable microenvironment,which could provide an amplification of the conductive signal,thus may contribute to enhancing electron transfer and subsequently improve the sensitivity in electrochemical measurements.With low detection limit(~43×10^(-12)g/L),acceptable stability and good reproducibility,the proposed electrochemical immunosensor could be advantageously extended for multiplexed detection of other agents of environmental pollution.Nguyen Van Chu Nguyen Hai Binh Cao Thi Thanh Nguyen Van Tu Nguyen Le Huy Nguyen Tuan Dzung Phan Ngoc Minh Vu Thi Thu Tran Dai Lam 2016Journal of Materials Science & Technology2016,32,6:0
14Biventricular pulsus alternans: An echocardiographic finding in patient with pulmonary embolism显示文摘Pulsus alternans is characterized by regular rhythm with beat-to-beat alternation of systolic pressures. Left ventricular alternans is usually found in severe left ventricular dysfunction due to cardiomyopathy, coronary artery disease, systemic hypertension, and aortic stenosis. Right ventricular alternans is usually associated with left ventricular alternans, right ventricular dysfunction, pulmonary embolism, and pulmonary hypertension. Biventricular alternans is rare and associated with severe left ventricular dysfunction and left anterior descending coronary artery disease. The exact mechanism of pulsus alternans has not been clearly delineated, and it has been remained a subject of investigation and conjecture since the nineteenth century. Two fundamental mechanisms have been proposed to explain ventricular alteration. The first, based on the Frank-Starling mechanism, proposes beat-to-beat alteration in end-diastolic volume accounted for the alternating contractile force. The second proposed mechanism which explains the physiology of pulsus alternans involves the abnormal calcium handling by cardiac myocytes. To the best of our knowledge, biventricular alternans in pulmonaryembolism has not been previously reported in the medical literature. We present and discuss the mechanisms of pulsus alternans and its clinical implications.Tin Nguyen Long-Bao Cao Minh Tran Assad Movahed 2013World Journal of Clinical Cases2013,1,5:0
15Myo-inositol versus metformin effects on clinical features, endocrine and metabolic profiles in infertile women with polycystic ovary syndrome: A randomized controlled trial显示文摘Objective:To compare the effectiveness of inositol and metformin on the clinical characteristics,and endocrine and metabolic profiles of infertile polycystic ovarian syndrome(PCOS)women from Vietnam.Methods:From June 2018 to August 2022,a randomized trial was undertaken at the Hue Center for Endocrinology and Reproduction on infertile women aged 18 to 40 years with polycystic ovarian syndrome.The clinical,endocrine,and metabolic features of these individuals were assessed before and after 3 months of treatment with 2 g of inositol or 1700 mg of metformin per day.Natural pregnancy rates,adverse effects,and tolerance of inositol were recorded.Results:The study included 171 infertile PCOS women who were eligible to participate and took part in the baseline assessment,of whom 132 women participated in data analysis after 3 months.After metformin treatment,42.1%of women with oligomenorrhea experienced regular menstruation.Metformin significantly lowered body mass index(BMI),waist circumference and testosterone levels,but had no effect on other clinical characteristics,endocrine profiles,or metabolic profiles.29.2%Of women reported experiencing side effects.21%Of them attained pregnancy,which resulted in 17.1%of live births.In the inositol group,the rate of regular cycle increased by 18.2%and the total testosterone concentration significantly decreased.In overweight/obese women with PCOS,inositol significantly decreased weight,BMI,waist and hip circumferences(P<0.05).100%Of women tolerated inositol and continued treatment.18.9%Of them became pregnant,leading to 17%of live births.Conclusions:Metformin and inositol can improve weight and waist circumference in overweight/obese infertile women with PCOS.Metformin is associated with a higher rate of regular menstruation,whereas inositol is associated with a lower rate of adverse effects.The spontaneous conception,clinical pregnancy,and live birth rates between two groups are comparable.Nguyen Sa Viet Le Minh Tam Le Thanh Ngoc Cao 2023Asian pacific Journal of Reproduction2023,12,6:0
16核磁共振测井新技术显示文摘测量技术的先进成果结合改进的处理技术为核磁共振(NMR)测井的应用开辟了新的领域。新型NMR仪器不仅能够提供常规NMR测量信息,而且还可对流体特性进行描述。分析人员可以利用这些NMR数据对复杂地层环境下的流体类型、过渡带和生产潜力进行识别。将这些信息纳入多维可视化图后,测井分析人员可以获得更详细的地下流体物性信息。Ridvan Akkurt H.Nate Bachman Chanh Cao Minh Charles Flaum Jack LaVigne Rob Leveridge Romulo Carmona Steve Crary Eric Decoster Nick Heaton Martin D.Hurlimann Wim J.Looyestijn Duncan Mardon Jim White 2009国外测井技术2009,,6:0
17存在各向异性泥岩时砂泥互层地层的图形分析显示文摘向异性的层状砂泥岩模型,解释方法已经详尽地用数学式子写出。然而,还没有一种确定主要参数(如泥岩各向异性)和指导选择多重解的明确方法,尤其是,没有识别稳定误差或对误差敏感情况的明确方法。 本文通过人机交互式交会图方法阐述解析方法。交会图能更好地给出岩石物理的内在情况(比一套要好)方程式,而交互的方法可以立刻看出结果,从而以最有效的方式帮助岩石物理学家。 图形分析的目标是:(1)确定泥岩各向异性参数以及是否有必要分出多个层;(2)确定每个解析方法适用的区域界线;(3)解释说明数据输出对于结果的影响;(4)快速地进行敏感性测试。从而来确定产油区和非产油区,从图上可以直接地对薄层的含烃潜力作出全局性的评估。 举出了一些例子,在这些例子中,泥岩的各向异性是相同的或大于薄互层段的各向异性。第一眼看上去,似乎分析不出这样的薄层。另一个例子说明定义多个各向异性泥岩的必要性,其困难在于确定泥岩点的数量以及它们各自的各向异性。另一个例子显示了没有100%的泥岩点来拾取参数。在这些困难的条件下,图形方法可以成功解释电阻率各向异性数据。成像测井、核磁共振结果和岩心数据证实了这样的结果。我们还发现,图形分析法对于质量控制电阻率各向异性数据是一个很有价值的工具。Chanh Cao Minh 吕洁(译) 赵平(校) 2008测井与射孔2008,11,4:0
18Development of deep neural network model to predict the compressive strength of FRCM confined columns显示文摘The present study describes a reliability analysis of the strength model for predicting concrete columns confinement influence with Fabric-Reinforced Cementitious Matrix(FRCM).through both physical models and Deep Neural Network model(artificial neural network(ANN)with double and triple hidden layers).The database of 330 samples collected for the training model contains many important parameters,i.e.,section type(circle or square),corner radius rc,unconfined concrete strength fco,thickness nt,the elastic modulus of fiber Ef,the elastic modulus of mortar Em.The results revealed that the proposed ANN models well predicted the compressive strength of FRCM with high prediction accuracy.The ANN model with double hidden layers(APDL-1)was shown to be the best to predict the compressive strength of FRCM confined columns compared with the ACI design code and five physical models.Furthermore,the results also reveal that the unconfined compressive strength of concrete,type of fiber mesh for FRCM,type of section,and the corner radius ratio,are the most significant input variables in the efficiency of FRCM confinement prediction.The performance of the proposed ANN models(including double and triple hidden layers)had high precision with R higher than 0.93 and RMSE smaller than 0.13,as compared with other models from the literature available.Khuong LE-NGUYEN Quyen Cao MINH Afaq AHMAD Lanh Si HO 2022Frontiers of Structural and Civil Engineering2022,16,10:0
19核磁共振与其他裸眼测井的组合方法显示文摘依据核磁共振(NMR)仪器所得的总孔隙度φ_t与其他裸眼测井资料相结合,可以帮助判别碳氢化合物类型,改进对φ_t和含水饱和度S_w的确定。在泥质地层中,在存在碳氢化合物尤其是气和油的情况下,很难估算孔隙度。而估算含水饱和度更困难,因为一些关键参数,如单位孔隙体积的黏土阳离子交换能力Q_v、地层因子F以及水的电阻率R_w可能是未知的。Chanh Cao Minh 刘萍 1999国外油气勘探1999,11,4:0
20Efficient NO Photodegradation of Hydrothermally Synthesized TiO2 Nanotubes under Visible Light显示文摘In this study, TiO2 nanotubes (TNTs) were synthesized via a hydrothermal process and characterized by high-resolution transmission electron microscopy (HR-TEM) images, selected area electron diffraction (SAED) pattern, and photoluminescence (PL) analysis. The NO removal photocatalytic activity of the hydrothermally synthesized TNTs was surveyed systematically. The hydrothermally synthesized TNTs have shown an efficient NO photodegradation which is approximately 4 times higher than that of P25 and an excellent photostability under visible light after 5 cycles. Furthermore, reactive radicals mainly involved in the photocatalytic reaction were identified by electron spin resonance (ESR) study, leading to a better understanding of the photocatalytic mechanism of the hydrothermally synthesized TNTs.Bui Dai Phat Tran Hong Huy Cao Minh Thi Pham Van Viet 2018Materials Science(Materials Review)2018,2,2:0
返回顶部 每页显示:
共2页 首页 上一页 第1页 下一页 末页 /2 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费