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    题名 作者 年代 出处 被引量
1等轴球晶凝固多相体系内热溶质对流、补缩流及晶粒运动的数值模拟 Ⅰ.三相流模型显示文摘基于Eulerian-Eulerian方法和体积元平均技术,建立了模拟等轴球晶凝固过程的液、固、气三相流模型.液、固两相处理成相互分离、相互扩散的介质,气相与液、固两相只存在热量及动量的相互作用,三相(凝固前)作为自由流体共享一个统一的压力场.分别求解三相的质量、动量、溶质、热焓守恒方程;相间的热量交换和摩擦拖拽以及液/固界面上的溶质再分配和凝固潜热释放,通过定义对应守恒方程的源项和交换项而加以考虑;另外,单独求解一个晶粒密度守恒方程.晶粒的形核生长(相变) 也加以模型化并体现在对应的源项中,模型中所用的密度定义为溶质与温度的函数,因此可综合考虑热溶质对流、晶粒运动及凝固收缩所引起的补缩流动.凝固过程的体积收缩及补缩流动将体现在气/液自由表面的波动上.王同敏 姚山 张兴国 金俊泽 M Wu A Ludwig B Pustal A Bührig-Polaczek 2006金属学报2006,42,6:18
2Recent Advances in Swine Amino Acid Nutrition显示文摘Recent advances in swine protein nutrition are characterized by the development of functional amino acids(AA)in regulating fetal and postnatal survival,growth and development.These AA include arginine,glutamine,glutamate,proline,leucine,cysteine and tryptophan.Due to limited knowledge on AA nutrition,pork producers have traditionally paid little attention to supplementing the arginine family of AA to swine diets.Results of recent studies indicate that functional AA serve important regulatory functions in nutrient metabolism,protein turnover,and immune function,therefore enhancing efficiency of feed utilization by pigs.The underlying mechanisms include activation of nitric oxide,mammalian target of rapamycin,gaseous signaling,and AMP-activated protein kinase pathways,as well as anti-oxidative function.Dietary supplementation with arginine,glutamine,proline or leucine to weanling piglets enhances their growth performance.Arginine or glutamine is also effective in increasing milk production by lactating sows.Furthermore,supplementing arginine to the diet of pregnant gilts between days 30 and 114 of gestation increases the number of live-born piglets and litter birth-weight.Availability of feed-grade functional AA holds great promise for improving animal health and nutrient utilization in pig production worldwide.Additionally,feedstuffs of animal origin [e.g.,blood meal(ring dried),feather meal(hydrolyzed),meat and bone meal,porcine protein meal,and poultry by-product meal(both feed-and petfood-grades)] are excellent and cost-effective sources of both essential and functional AA for formulating balanced swine diets.New knowledge on AA nutrition provides a much needed scientific basis for revising the next edition of swine nutrient requirements.Guoyao Wu Department of Animal Science and Faculty of Nutrition,Texas A&M University,College Station,TX,77843,U.S.A and State Key Laboratory of Animal Nutrition,China Agricultural University,Beijing,100193,China 2010Journal of Animal Science and Biotechnology2010,1,2:7
3等轴球晶凝固多相体系内热溶质对流、补缩流及晶粒运动的数值模拟 Ⅱ.模型的应用显示文摘利用等轴球晶三相凝固模型模拟了A356铝合金半固态浆料冷却斜槽法制备过程,研究了晶粒密度、尺寸及固相分数的分布与工艺参数的关系.结果表明,在斜槽浇注处晶粒形核密度最大,在斜槽末端晶粒尺寸、固相分数最大,在铸型中这三者的最终分布大致均匀.适当降低浇注温度有助于提高斜槽上形核密度和固相分数及降低晶粒尺寸.此外,还模拟了热溶质对流及补缩流在Al-4%Cu(质量分数)合金等轴球晶凝固过程所起的作用,以及晶粒运动及补缩流对合金自由表面和宏观偏析形成的影响.结果表明,凝固初期热对流及补缩流为主导,凝固中期热溶质对流为主导,凝固后期补缩流为主导;晶粒运动受阻程度直接影响自由表面形状,补缩流考虑与否导致完全不同的宏观偏析图.实验测得晶粒尺寸与模拟结果分布较相似,但其绝对值存在较大差异.王同敏 李廷举 曹志强 金俊泽 T Grimmig A Bührig-Polaczek M Wu A Ludwig 2006金属学报2006,42,6:7
4Regulation of epithelium-specific Ets-like factors ESE-1 and ESE-3 in airway epithelial cells: potential roles in airway inflammation显示文摘航线发炎是许多呼吸障碍的特点,例如气喘和膀胱的纤维变性。在发炎触发的航线基因表示的变化在这些疾病的致病起一个关键作用。基因连接研究建议 ESE-2 和 ESE-3,编码上皮特定的 Ets-domain-containing 抄写因素,是候选人气喘危险性基因。我们这里报导 et 家庭抄写因素 ESE-1 的另一个成员的表示,以及 ESE-3,起来在支气管的上皮的房间线由煽动性的 cytokines interleukin-1beta (IL-1beta ) 和肿瘤坏死 factor-alpha (TNF-alpha ) 调整了。有 IL-1beta 和 TNF-alpha 的这些房间的处理为 ESE-1 和 ESE-3 导致了信使 rna 表示的戏剧的增加。我们证明导致的表示被抄写因素 NF-kappaB 的激活调停。我们描绘了 ESE-1 和 ESE-3 倡导者并且识别了为导致 cytokine 的表达式被要求的 NF-kappaB 有约束力的序列。另外,我们也表明那 ESE-1 在上面调整 ESE-3 表示, down 由 cytokines 调整它的自己的正式就职。最后,我们在 Elf3 显示出那(对人的 ESE-1 相应) 猛烈老鼠,煽动性的 cytokine interleukin-6 (IL-6 ) 的表示是调整的 down。我们的调查结果建议 ESE-1 和 ESE-3 在航线发炎起一个重要作用。Jing Wu Rongqi Duan Huibi Cao Deborah Field Catherine M Newnham David R Koehler Noe Zamel Melanie A Pritchard Paul Hertzog Martin Post A Keith Tanswell Jim Hu 2008Cell Research2008,18,6:6
5婚姻状况与心血管病风险的关系:系统评价和荟萃分析显示文摘虽然80%的未来心血管病风险可以从已知的心血管危险因素预测,如老年、男性、高血压、高血脂症、吸烟和糖尿病,但其余20%风险的决定因素仍不明确。婚姻对健康和死亡的益处已经在不同种族的两性中得到证实,并且与各种社会人口学特征无关。Wong CW Kwok CS Narain A Gulati M Mihalidou AS Wu P Alasnag M Myint PK Mamas MA 刘莉 叶鹏 2018中华高血压杂志2018,26,9:5
6Importance of integrating nanotechnology with pharmacology and physiology for innovative drug delivery and therapy - an illustration with, firsthand examples显示文摘纳米技术在药交货广泛地被使用了改进各种各样的疾病的治疗学的结果。巨大的努力在与他们的生物命运和函数的关系集中于 nanoparticles 的物理化学的性质的新奇 nanoparticles 和描述的开发。然而在这些基于纳米技术的药交货系统的设计和评估,交付的药的药理学并且(patho-) 主人的生理学收到了更少的注意。在这评论,我们讨论集成于使纳米技术能的药交货系统和治疗的设计的重要药理学机制,生理的特征,和病理学的因素。第一手的例子被举由利用 1 为癌症治疗说明如此的综合设计策略的原则和优点)到克服的multidrug抵抗的癌症的药药和 drug-nanomaterial 联合的细胞内部的 synergistic 相互作用, 2 )循环系统到的血流动方向为肺转移最大化药交货到肿瘤 neovasculature 和房间 overexpressing integrin 受体, 3 )装饰 nanocarriers 和 t 的内长的脂蛋白关于在糖尿病管理的申请,一个使纳米技术能的靠近环的胰岛素交货系统被设计在生理地相关的时间规模和葡萄糖层次提供动态胰岛素版本。和另外的研究结果,这些例子建议药理学的相互影响的那利用,(patho-) 生理学和纳米技术是一条灵巧的途径与高效率和翻译潜力开发创新的药交货系统和治疗。Rui Xue ZHANG Jason LI Tian ZHANG Mohammad A AMINI Chunsheng HE Brian LU Taksim AHMED HoYin LIP Andrew M RAUTH Xiao Yu WU 2018Acta Pharmacologica Sinica2018,39,5:3
7Preparation and hybridization analysis of DNA/RNA from E. coli on microfabricated bioelectronic chips显示文摘Cheng Jing Sheldon E L Wu Lei Uribe A Gerrue L O Carrino J Heller M J O'Connell J P 0,,:2
8全颗粒饲料对奶牛生产性能的影响显示文摘饲料中的中性洗涤纤维(NDF)含量和饲料颗粒直径是影响瘤胃功能的重要因素。试验评估了以颗粒饲料为主的奶牛瘤胃健康情况、NDF消化率和生产性能。选取8头荷斯坦母牛(336±30 d,体重346±35 kg),随机分配到交叉重复试验组中,奶牛安置于牛栏,自由采食。试验期为3周,前两周是适应期,最后一周为数据收集期。各组饲粮原料相同,但物理形式不同,分为全混合日粮(TMR)和颗粒料(直径=8 mm)。两组间物理有效NDF(pe NDF)不同,TMR组为39.8%,颗粒料组为11.8%。在试验过程中,干物质采食量(DMI)、饮水量、瘤胃反刍时间、瘤胃温度和pH情况均记录。3周后收集粪样,确定潜在的可消化NDF总消化率(pdNDF)。每阶段结束后计算平均日增重和饲料转化率。颗粒料组的DMI、DMI/体重和饮水量更高。而两组间平均日增重和饲料转化率无显著差异。颗粒料组的瘤胃反刍时间为241 min·d-1低于TMR组的507 min·d-1。饲料的不同物理外形对瘤胃温度、瘤胃pH无显著影响。TMR组的pdNDF总消化率为90.25%高于颗粒料组的86.82%。试验结果表明,动物易接受完整的颗粒饲料,DMI较高,且反刍时间减少,但瘤胃pH无显著变化。TMR组的pdNDF消化率显著增加。尽管两组奶牛在DMI和纤维消化方面表现不同,但总体表现相似,两组饲料的保存时间与其物理形式有关。在短期内,提供能满足NDF需求的完全颗粒饲料可改善瘤胃健康状况和动物生产性能,而较长时间的数据则需要进一步试验。Wang J Yang M Cao M Lin Y Che L Q Duraipandiyan V Al-Dhabi N A Fang Z F Xu S Y Feng B Liu G Wu D Bonfante E Palmonari A Mammi L Canestrari G Fustini M Formigoni A 2016饲料博览2016,0,12:2
9Correlation of the expression of human telomerase subunits with telomerase activity in normal skin and skin tumors 显示文摘Wu A Ichihashi M Ueda M 1999Cancer1999,86,10:2
10Medial temporal lobe atrophy on MRI scans and the diagnosis of Alzheimer disease显示文摘R Duara D A. Loewenstein E Potter J Appel M T. Greig R Urs Q Shen A Raj B Small W Barker E Schofield Y Wu H Potter 2008Neurology2008,,24:2
11Medical student depression and its correlates across three international medical schools显示文摘BACKGROUND Medical students have high rates of depression, anxiety, and burnout that have been found to affect their empathy, professional behaviors, and performance as a physician. While studies have examined predictors for burnout and depression in the United States (US), no study, to our knowledge, has compared depression in medical students cross-culturally, or has attempted to examine the effect of factors influencing rates including burnout, exercise, stress, unmet mental health needs, and region. AIM To examine rates of depression in three international cohorts of medical students, and determine variables that may explain these differences. METHODS Convenience samples of medical students from three countries (US, China, and a Middle Eastern country whose name remains anonymous per request from the school) were surveyed in this observational study. Using the Patient Health Questionnaire-2 (PHQ-2) and a modified Maslach Burnout Inventory, depression and burnout were examined among medical students from the three cohorts (n = 473). Chi-square test and analysis of variance were used to examine differences in demographics, behavioral, and psychological variables across these three schools to identify potentially confounding descriptive characteristics. Analysis of covariance compared depression and the emotional exhaustion component of burnout identified through Principal Component Analysis across countries. Multiple linear regression was used to analyze the impact of demographic, behavioral, and psychological variables on screening positive for depression. RESULTS Medical students from the Middle Eastern country had the highest rates of positive depression screens (41.1%), defined as a PHQ-2 score of ≥ 3, followed by China (14.1 %), and then the US (3.8%). More students in the Middle Eastern school had unmet mental health needs (50.8%) than at the medical school in China (34.8%) or the school in the US (32.8%)(Pearson chi-square significance < 0.05). Thus, PHQ-2 scores were adjusted for unmet mental health needs;however, the Middle Eastern country continued to have the highest depression. Adjusting for PHQ-2 score, medical students from the US scored the highest on emotional exhaustion (a measure of burnout). Demographic variables did not significantly predict medical student depression;however, lack of exercise, unmet mental health needs, stress, and emotional exhaustion predicted nearly half of depression in these cohorts. In comparison to the US, coming from the Middle Eastern country and China predicted higher levels of depression. CONCLUSION Depression rates differ in three international cohorts of medical students. Measured factors contributed to some observed differences. Identifying sitespecific prevention and intervention strategies in medical student mental health is warranted.Jessica A Gold Xinran Hu Gan Huang Wan-Zhen Li Yi-Fan Wu Shan Gao Zhe-Ning Liu Mickey Trockel Wan-Zhen Li Yi-Fan Wu Shan Gao Zhe-Ning Liu Robert M Rohrbaugh Kirsten M Wilkins 2019World Journal of Psychiatry2019,9,4:2
12Durable Asphalt Pavements Are Self Healing显示文摘The traffic volume and the number of heavy vehicles are growing continuously. Considering the continuous traffic flow and the limited time available for road maintenance,it is very important to design a durable pavement system. Asphalt pavements with a healing capability are believed to be very useful since they can extend the pavement service life thanks to rest periods and hot summers. In order to design durable asphalt pavements,research in understanding and upgrading the self-healing capability of bituminous materials in time is of major importance. The self healing capability of bituminous mastic was evaluated in this research with a direct tension healing test. In the test program,different healing times,crack status and modifications were applied. The results indicate that elastic recovery and flow capacity are important factors for the self healing capability of bituminous materials at different crack phases as simulated with the direct tension test.QIU J VAN DE VEN M F C WU S P YU J Y MOLENAAR A A A 2010武汉理工大学学报2010,32,17:2
13Ipsilateral breast tumor recurrence in early stage breast cancer patients treated with breast conserving surgery and adjuvant radiation therapy: Concordance of biomarkers and tumor location from primary tumor to in-breast tumor recurrence显示文摘BACKGROUND Patients with an in-breast tumor recurrence(IBTR)after breast-conserving therapy have a high risk of distant metastasis and disease-related mortality.Classifying clinical parameters that increase risk for recurrence after IBTR remains a challenge.AIM To describe primary and recurrent tumor characteristics in patients who experience an IBTR and understand the relationship between these characteristics and disease outcomes.METHODS Patients with stage 0-II breast cancer treated with lumpectomy and adjuvant radiation were identified from institutional databases of patients treated from 2003-2017 at our institution.Overall survival(OS),disease-free survival,and local recurrence-free survival(LRFS)were estimated using the Kaplan Meier method.We identified patients who experienced an isolated IBTR.Concordance of hormone receptor status and location of tumor from primary to recurrence was evaluated.The effect of clinical and treatment parameters on disease outcomes was also evaluated.RESULTS We identified 2164 patients who met the eligibility criteria.The median follow-up for all patients was 3.73[interquartile range(IQR)2.27-6.07]years.Five-year OS was 97.7%(95%CI:96.8%-98.6%)with 28 deaths;5-year LRFS was 98.0%(97.2-98.8)with 31 IBTRs.We identified 37 patients with isolated IBTR,19(51.4%)as ductal carcinoma in situ and 18(48.6%)as invasive disease,of whom 83.3%had an in situ component.Median time from initial diagnosis to IBTR was 1.97(IQR:1.03-3.5)years.Radiotherapy information was available for 30 of 37 patients.Median whole-breast dose was 40.5 Gy and 23 patients received a boost to the tumor bed.Twenty-five of thirty-two(78.1%)patients had concordant hormone receptor status,HER-2 receptor status,and estrogen receptor(ER)(P=0.006)and progesterone receptor(PR)(P=0.001)status from primary to IBTR were significantly associated.There were no observed changes in HER-2 status from primary to IBTR.The concordance between quadrant of primary to IBTR was 10/19[(62.2%),P=0.008].Tumor size greater than 1.5 cm(HR=0.44,95%CI:0.22-0.90,P=0.02)and use of endocrine therapy upfront(HR=0.36,95%CI:0.18-0.73,P=0.004)decreased the risk of IBTR.CONCLUSION Among patients with early stage breast cancer who had breast conserving surgery treated with adjuvant RT,ER/PR status and quadrant were highly concordant from primary to IBTR.Tumor size greater than 1.5 cm and use of adjuvant endocrine therapy were significantly associated with decreased risk of IBTR.Juhi M Purswani Fauzia Shaikh S Peter Wu Jennifer Chun Kim Freya Schnabel Nelly Huppert Carmen A Perez Naamit K Gerber 2020World Journal of Clinical Oncology2020,11,1:2
14An Awareness-Adoption Matrix for Strategic Decision Making in Agricultural Development Projects: A Case Study in Yunnan Province, China显示文摘Significant achievements have been made in generating sustainable agricultural technologies in developing countries. Usually, these new technologies have been more effective in increasing production and productivity than existing technologies. However, many new technologies considered ‘effective’ have not been successful in alleviating the associated sustainability problems, due to poor adoption by targeted users. Success of any novel technical intervention should be judged on the basis of how widespread adoption is in the target area by targeted users. In this context, a case study identified the factors affecting farmers’ adoption of improved technologies extended by an agricultural development project in a rural Village in Yunnan Province, China. Initial adoption/adaptation of project technologies was influenced by farmers’ awareness of the technology. Farmers were more aware of polythene mulch, contour cultivation, intercropping and tree planting technologies than others. This led to a comparatively high initial uptake of polythene mulch, contour cultivation, sweet chestnut, and intercropping technologies. Farmers had inadequate knowledge about some Project technologies, the adoption of which was particularly low. This reveals the need for increasing farmers’ awareness about the rationale for Project technologies to achieve greater adoption/adaptation of project technologies by farmers over wider areas. Farmers’ testing of the technology leads to better adoption/adaptation compared to mere awareness. However, considerable time and resources are required for testing/trying technologies. This justifies the usefulness of comparatively quick and less resource demanding options for awareness creation. Development of effective cropping technologies is important for sustainable agricultural development. The success of any agricultural development project, especially in terms of improving sustainability, depends on how widely those improved technologies are adopted/adapted by farmers in the targeted region. Therefore, farmers’ adoption of technologies should be a key criterion for judging the success of any project. The awareness-adoption matrix is a useful tool to guide research and development projects to achieve expected adoption/adaptation of technologies. Use of the matrix helps identification of weak and strong aspects of research and development projects and thus assists strategic decision-making.M Subedi T J Hocking M A Fullen A R McCrea E Milne WU Bo-zhi D J Mitche 2009Agricultural Sciences in China2009,8,9:2
15查看详情显示文摘Wu A Vilarinho P M Salvado I M M 0,,:2
16New directions in management accounting research 显示文摘Atkinson A A Balakrishnan P B Cote J M Grout T M Roberts H Ulan E Wu A Journal of Management Accounting Research0,997,:1
17RAC/ROP GTPases:hubs for signal integration and diversification in plants显示文摘Nibau C Wu H M Cheung A Y 2006Trends Plant Sci2006,11,:1
18Rotation, scale and translation resilient watermarking for images显示文摘Lin C-Y Wu M Bloom J A 2001IEEE Trans on Image Processing2001,10,5:1
19Two New Insecticidal Sesquiterpene Polyol Esters from Celastrus angulatus 显示文摘WANG M A WU W J ZHU J B 2006Nat Prod Res2006,20,:1
20Apoptosis,cellular proliferation and expression of p53 in human uterine leiomyomas and myometrium during the menstrual cycle and after menopause显示文摘 Blanck A Clovsson M 2000Acta Obster Gynecol Scand2000,79,:1
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