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| 1 | 大变形巷道螺纹钢锚杆优化设计及应用研究显示文摘为了解决钱家营煤矿大变形巷道支护问题,根据锚杆外形参数研究、锚杆锚固失效模式判定和锚固力残余强度分析,设计出一种新型锚杆.运用锚固力学厚壁理论,研究了不同围岩强度与实验室套筒壁厚的等效关系,并通过实验室和现场的拉拔试验对设计的新型锚杆和煤矿原常规左旋锚杆进行了锚固力对比测试.建立了模拟钱家营煤矿地质力学条件的锚固力测试实验模型.实验结果表明:弹性模量为10~30 GPa的围岩,径向刚度与壁厚3~10 mm的铝套筒一致;弹性模量为30~70 GPa的围岩,径向刚度与壁厚3~7 mm的钢套筒一致;新型锚杆锚固力较矿用左旋锚杆分别提高了13%和16%,吸能能力提高了15%和55%,锚固效果显著提高,更适用于钱家营煤矿大变形回采巷道锚杆支护. | 韩军 张明 张怀东 TRAN Van Cong CAO Chen REN Ting 赵象卓 | 2019 | 中国矿业大学学报2019,48,4: | 16 |
| 2 | Gut bless you:The microbiota-gut-brain axis in irritable bowel syndrome显示文摘Irritable bowel syndrome(IBS)is a common clinical label for medically unexplained gastrointestinal symptoms,recently described as a disturbance of the microbiota-gut-brain axis.Despite decades of research,the pathophysiology of this highly heterogeneous disorder remains elusive.However,a dramatic change in the understanding of the underlying pathophysiological mechanisms surfaced when the importance of gut microbiota protruded the scientific picture.Are we getting any closer to understanding IBS’etiology,or are we drowning in unspecific,conflicting data because we possess limited tools to unravel the cluster of secrets our gut microbiota is concealing?In this comprehensive review we are discussing some of the major important features of IBS and their interaction with gut microbiota,clinical microbiota-altering treatment such as the low FODMAP diet and fecal microbiota transplantation,neuroimaging and methods in microbiota analyses,and current and future challenges with big data analysis in IBS. | Eline Margrete Randulff Hillestad Aina van der Meeren Bharat Halandur Nagaraja Ben RenéBjørsvik Noman Haleem Alfonso Benitez-Paez Yolanda Sanz Trygve Hausken Gülen Arslan Lied Arvid Lundervold Birgitte Berentsen | 2022 | World Journal of Gastroenterology2022,28,4: | 15 |
| 3 | Q-switched and mode-locked Er-doped fiber laser using PtSe2 as a saturable absorber显示文摘We report a passively Q-switched and mode-locked erbium-doped fiber laser(EDFL) based on PtSe_2, a new two-dimensional material, as a saturable absorber(SA). Self-started Q-switching at 1560 nm in the EDFL was achieved at a threshold pump power of 65 mW, and at the maximum pump power of 450 m W, the maximum single Q-switched pulse energy is 143.2 n J. Due to the polarization-dependent characteristics of the PtSe_2-based SA, the laser can be switched from the Q-switched state to the mode-locked state by adjusting the polarization state. A mode-locked pulse train with a repetition rate of 23.3 MHz and a pulse width of 1.02 ps can be generated when the pump power increases to about 80 m W, and the stable mode-locked state is maintained until the pump power reaches its maximum 450 m W. The maximum single mode-locked pulse energy is0.53 nJ. This is the first time to our knowledge that successful generation of stable Q-switched and mode-locked pulses in an Er-doped fiber laser has been obtained by using PtSe_2 as a saturable absorber. | KANG ZHANG MING FENG YANGYANG REN FANG LIu XINGSHUO CHEN JIE YANG XIAO-QING VAN FENG SONG JIANGUO TIAN | 2018 | Photonics Research2018,6,9: | 10 |
| 4 | Tumor-stroma ratio as prognostic factor for survival in rectal adenocarcinoma: A retrospective cohort study显示文摘AIM To evaluate the prognostic value of the tumor-stroma ratio(TSR) in rectal cancer.METHODS TSR was determined on hematoxylin and eosin stained histological sections of 154 patients treated for rectal adenocarcinoma without prior neoadjuvant treatment in the period 1996-2006 by two observers to assessreproducibility. Patients were categorized into three categories: TSR-high [carcinoma percentage(CP) ≥ 70%], TSR-intermediate(CP 40%, 50% and 60%) and TSR-low(CP ≤ 30%). The relation between categorized TSR and survival was analyzed using Cox proportional hazards model.RESULTS Thirty-six(23.4%) patients were scored as TSR-low, 70(45.4%) as TSR-intermediate and 48(31.2%) as TSRhigh. TSR had a good interobserver agreement(κ = 0.724, concordance 82.5%). Overall survival(OS) and disease free survival(DFS) were significantly better for patients with a high TSR(P = 0.01 and P = 0.02, respectively). A similar association existed for disease specific survival(P = 0.06). In multivariate analysis, patients without lymph node metastasis and an intermediate TSR had a higher risk of dying from rectal cancer(HR = 5.27, 95%CI: 1.54-18.10), compared to lymph node metastasis negative patients with a high TSR. This group also had a worse DFS(HR = 6.41, 95%CI: 1.84-22.28). An identical association was seen for OS. These relations were not seen in lymph node metastasis positive patients. CONCLUSION The TSR has potential as a prognostic factor for survival in surgically treated rectal cancer patients, especially in lymph node negative cases. | René Scheer Alexi Baidoshvili Shorena Zoidze Marloes AG Elferink Annefleur EM Berkel Joost M Klaase Paul J van Diest | 2017 | World Journal of Gastrointestinal Oncology2017,9,12: | 3 |
| 5 | The Treatment-Naive Microbiome in New-Onset Crohn’s Disease显示文摘 | Dirk Gevers Subra Kugathasan Lee A. Denson Yoshiki Vázquez-Baeza Will Van Treuren Boyu Ren Emma Schwager Dan Knights Se Jin Song Moran Yassour Xochitl C. Morgan Aleksandar D. Kostic Chengwei Luo Antonio González Daniel McDonald Yael Haberman Thomas Walter | 2014 | Cell Host & Microbe2014,,: | 3 |
| 6 | 北京设施农业集雨利用典型模式及效益研究显示文摘研究北京农业雨水利用的历史与现状,并根据北京怀柔区示范点设施农业集雨利用典型模式的实际运行情况,分析了设施农业集雨利用系统运行的效率、效益及其推广。对示范点进行的水量平衡分析和成本效益分析表明,2008年示范点设施农业集雨利用系统的雨水收集效率为66%,设施农业雨水利用率为69%;从政府角度,集雨利用工程的效益成本系数达1.54;从示范点农户的角度,集雨利用工程的效益成本系数可达5.85。农业用水水资源价格影响集雨利用工程的应用,如果集雨利用系统不能带来额外的农业收入,只有当水资源价格高于2.2元/m3时,农户才会选择集雨利用的方式解决用水问题。在此基础上,就北京设施农业集雨利用工程实施中面临的问题提出措施和建议,旨在提高农业集雨利用系统的效率、效益及其应用性,促进其推广和应用。 | 季文华 蔡建明 王克武 王志平 René van Veenhuizen | 2010 | 中国农业大学学报2010,15,1: | 3 |
| 7 | Fluorouracil-based adjuvant chemotherapy after preoperative chemoradiotherapy in rectal cancer: long-term results of the EORTC 22921 randomised study显示文摘 | Jean-Fran?ois Bosset Gilles Calais Laurent Mineur Philippe Maingon Suzana Stojanovic-Rundic René-Jean Bensadoun Etienne Bardet Alexander Beny Jean-Claude Ollier Michel Bolla Dominique Marchal Jean-Luc Van Laethem Vincent Klein Jordi Giralt Pierre Clavère | 2014 | Lancet Oncology2014,,2: | 2 |
| 8 | Acute phlegmonous gastritis显示文摘 | Marc J. Schultz René W.M. van der Hulst Guido N.J. Tytgat | 1996 | Gastrointestinal Endoscopy1996,,1: | 2 |
| 9 | Proton Pump Inhibitors Partially Restore Mucosal Integrity in Patients with PPI-responsive Esophageal Eosinophilia but not Eosinophilic Esophagitis显示文摘 | Bram D. van Rhijn Pim W. Weijenborg Joanne Verheij Marius A. van den Bergh Weerman Caroline Verseijden René M.J.G.J. van den Wijngaard Wouter J. de Jonge Andreas J.P.M. Smout Albert J. Bredenoord | 2014 | Clinical Gastroenterology and Hepatology2014,,: | 2 |
| 10 | Remediation of metal contaminated soil with mineral-amended composts显示文摘 | René van Herwijnen Tony R. Hutchings Abir Al-Tabbaa Andy J. Moffat Mike L. Johns Sabeha K. Ouki | 2007 | Environmental Pollution2007,,3: | 2 |
| 11 | The effect of estrogen receptor genotype on litter size and placental traits at term in F2 crossbred gilts 显示文摘 | Van Rens B T de Groot P N Van Der L T | 2002 | Theriogenology2002,57,6: | 1 |
| 12 | The clinicalvalue of lung imaging fluorescence endoscopy for detectingsynchronous lung cancer显示文摘 | van Rens MT Schramel FM Elbers JR | 2001 | Lung Cancer2001,32,1: | 1 |
| 13 | Atmospheric polycyclic aromatic hydrocarbons: Source attribution, emission factors and regulation显示文摘 | Khaiwal Ravindra Ranjeet Sokhi René Van Grieken | 2007 | Atmospheric Environment2007,,13: | 1 |
| 14 | Biodiversity and tourism: Impact and interventions 显示文摘 | René van der Duim | 2002 | Annals of Tourism Research2002,2,3: | 1 |
| 15 | Process Analytical Technology in the food industry显示文摘 | Frans van den Berg Christian B. Lyndgaard Klavs M. S?rensen S?ren B. Engelsen | 2012 | Trends in Food Science & Technology2012,,: | 1 |
| 16 | Vitamin D receptor: a new risk marker for clinical restenosis after percutaneous coronary intervention显示文摘 | Pascalle S Monraats Yue Fang Douwe Pons Nuno MM Pires Huibert AP Pols Aeilko H Zwinderman Moniek PM de Maat Pieter AF Doevendans Robbert J deWinter René A Tio Johannes Waltenberger Rune R Frants Paul HA Quax Arnoud van der Laarse Ernst E van der Wall Andr | 2010 | Expert Opinion on Therapeutic Targets2010,,: | 1 |
| 17 | Piglet and placental traits at term in relation to the estrogen receptor genotype in gilts显示文摘 | VAN RENS BT VAN DER LENDE T | 2002 | Theriogenology2002,57,6: | 1 |
| 18 | Definition and grading of anastomotic leakage following anterior resection of the rectum: A proposal by the International Study Group of Rectal Cancer显示文摘 | Nuh N. Rahbari Jürgen Weitz Werner Hohenberger Richard J. Heald Brendan Moran Alexis Ulrich Torbj?rn Holm W. Douglas Wong Emmanuel Tiret Yoshihiro Moriya S?ren Laurberg Marcel den Dulk Cornelis van de Velde Markus W. Büchler | 2010 | Surgery2010,,3: | 1 |
| 19 | Age effect on orthodontic tooth movement in rats显示文摘 | Ren Y Maltha JC Van't Hof MA | | 0,,01: | 1 |
| 20 | Nitrogen retention in rivers: model development and application to watersheds in the northeastern U.S.A.显示文摘 | Sybil P. Seitzinger Renée V. Styles Elizabeth W. Boyer Richard B. Alexander Gilles Billen Robert W. Howarth Bernhard Mayer Nico van Breemen | 2002 | Biogeochemistry2002,,1: | 1 |