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| 1 | O形密封圈的有限元力学分析显示文摘采用大型有限元分析程序 MARC/ Mentat32 0对 O形密封圈在“安装”状态和密封流体介质作用下的力学性能进行了分析 ,研究了造成密封圈撕裂损坏及材料松弛的当量 Cauchy应力峰值大小及位置随密封流体介质作用的变化情况 ,以及轴和密封接触面间的接触压力及剪应力分布状态。为重要场合下 O形密封圈的正确选用提供了一种方法。 | 陈国定 Haiser H Haas W Lechner G | 2000 | 机械科学与技术2000，19，5： | 115 |
| 2 | Towards 6G wireless communication networks:vision,enabling technologies,and new paradigm shifts显示文摘The fifth generation(5G)wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized,such as mass connectivity,ultra-reliability,and guaranteed low latency.However,5G will not meet all requirements of the future in 2030 and beyond,and sixth generation(6G)wireless communication networks are expected to provide global coverage,enhanced spectral/energy/cost efficiency,better intelligence level and security,etc.To meet these requirements,6G networks will rely on new enabling technologies,i.e.,air interface and transmission technologies and novel network architecture,such as waveform design,multiple access,channel coding schemes,multi-antenna technologies,network slicing,cell-free architecture,and cloud/fog/edge computing.Our vision on 6G is that it will have four new paradigm shifts.First,to satisfy the requirement of global coverage,6G will not be limited to terrestrial communication networks,which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV)communication networks,thus achieving a space-airground-sea integrated communication network.Second,all spectra will be fully explored to further increase data rates and connection density,including the sub-6GHz,millimeter wave(mmWave),terahertz(THz),and optical frequency bands.Third,facing the big datasets generated by the use of extremely heterogeneous networks,diverse communication scenarios,large numbers of antennas,wide bandwidths,and new service requirements,6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI)and big data technologies.Fourth,network security will have to be strengthened when developing 6G networks.This article provides a comprehensive survey of recent advances and future trends in these four aspects.Clearly,6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears. | Xiaohu YOU Cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi CHEN Xinying MA Chih-Lin I Shuangfeng HAN Ke LI Chengkang PAN Zhimin ZHENG Lajos HANZO Xuemin(Sherman)SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik GLARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin CHEN Zhe CHEN Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO HVincent POOR Gerhard P.FETTWEIS Ying-Chang LIANG | 2021 | Science China(Information Sciences)2021，64，1： | 122 |
| 3 | Towards 10 Gb/s orthogonal frequency division multiplexing-based visible light communication using a GaN violet micro-LED显示文摘Visible light communication(VLC)is a promising solution to the increasing demands for wireless connectivity.Gallium nitride micro-sized light emitting diodes(micro-LEDs)are strong candidates for VLC due to their high bandwidths.Segmented violet micro-LEDs are reported in this work with electrical-to-optical bandwidths up to 655 MHz.An orthogonal frequency division multiplexing-based VLC system with adaptive bit and energy loading is demonstrated,and a data transmission rate of 11.95 Gb/s is achieved with a violet micro-LED,when the nonlinear distortion of the micro-LED is the dominant noise source of the VLC system.A record 7.91 Gb/s data transmission rate is reported below the forward error correction threshold using a single pixel of the segmented array when all the noise sources of the VLC system are present. | MOHAMED SUFYAN ISLIM RICARDO X.FERREIRA XIANGYU HE ENYUAN XIE STEFAN VIDEV SHAUN VIOLA SCOTT WATSON NIKOLAOS BAMIEDAKIS RICHARD V.PENTY IAN H.WHITE ANTHONY E.KELLY ERDAN GU HARALD HAAS MARTIN D.DAWSON | 2017 | Photonics Research2017，5，2： | 23 |
| 4 | 阶梯组合密封件的力学性能研究显示文摘采用大型有限元分析软件 MARC/ Mentat32 0 ,分析了阶梯组合密封件 (阶梯形密封 +O形密封圈 )截面上的当量 Von Mises应力分布 ,使用三种不同硬度 O形密封圈的阶梯组合密封件在不同工况下的径向力、密封接触区宽度及摩擦功耗。所获得的计算结果对于阶梯组合密封件的设计及使用都是非常有意义的。 | 陈国定 Haiser H Haas W Lechner G | 2000 | 机械科学与技术2000，19，6： | 15 |
| 5 | H pylori infection causes chronic pancreatitis in Mongolian gerbils显示文摘AIM: To investigate whether chronic H pylori infection has the potential to induce pancreatitis in the Mongolian gerbil model, and whether it is dependent on an intact type Ⅳ secretion system. METHODS: Mongolian gerbils were infected with wild type (WT) H pylori typeⅠstrain B128 or its isogenic mutant B128 ?cagY (defective type Ⅳ secretion). After seven months of infection, H pylori was reisolated from antrum and corpus and H pylori DNA was analyzed by semi- nested polymerase chain reaction (PCR). Inflammation and histological changes were documented in the gastric antrum, corpus, and pancreas by immunohistochemistry. Cytokine mRNA, gastric pH, plasma gastrin, amylase, lipase, and glucose levels were determined. RESULTS: The H pylori infection rate was 95%. Eight infected animals, but none of the uninfected group, developed transmural inflammation and chronic pancreatitis. Extensive interstitial fibrosis and inflammation of the pancreatic lobe adjacent to the antrum was confirmed by trichrome stain, and immuno- histochemically. Pro-inflammatory cytokine mRNA was significantly increased in the antral mucosa of all infected gerbils. In the corpus, only cytokine levels of WT-infected animals and those developing transmural inflammation and pancreatitis were significantly increased. Levels of lipase, but not glucose or amylase levels, were significantly reduced in the pancreatitis group. H pylori DNA was detected in infected antral and corpus tissue,but not in the pancreas. CONCLUSION: H pylori infection is able to induce chronic pancreatitis in Mongolian gerbils independently of the type Ⅳ secretion system, probably by an indirect mechanism associated with a penetrating ulcer. | Gabriele Rieder Arno Karnholz Mechthild Stoeckelhuber Juanita L Merchant Rainer Haas | 2007 | World Journal of Gastroenterology2007，13，29： | 10 |
| 6 | Relationship between vascular endothelium and periodontal disease in atherosclerotic lesions: Review article显示文摘Inflammation and endothelial dysfunction are linked to the pathogenesis of atherosclerotic disease. Recent studies suggest that periodontal infection and the ensuing increase in the levels of inflammatory markers may be associated with myocardial infarction, peripheral vascular disease and cerebrovascular disease. The present article aimed at reviewing contemporary data on the pathophysiology of vascular endothelium and its association with periodontitis in the scenario of cardiovascular disease. | Marco Aurélio Lumertz Saffi Mariana Vargas Furtado Carisi Anne Polanczyk Márlon Munhoz Montenegro Ingrid Webb Josephson Ribeiro Cassio Kampits Alex Nogueira Haas Cassiano Kuchenbecker Rosing Eneida Rejane Rabelo-Silva | 2015 | World Journal of Cardiology2015，7，1： | 9 |
| 7 | Expression of tissue factor in pancreatic adenocarcinoma is associated with activation of coagulation显示文摘瞄准:在 thromboembolism 的开发在胰腺的癌症和它的角色学习织物因素(TF ) 的表示。方法:TF 表示被北污点和间接免疫荧光在八根人的胰腺的癌房间线学习。或者拼接的 TF (asTF ) 的表示被 RT-PCR 估计。另外, TF 表示被免疫荧光与胰腺的腺癌(PCa ) 在 19 个病人的胰腺的纸巾决定,有慢性胰炎(CP ) 的 9 个病人和 20 正常控制。血浆样品(30 PCa 病人, 13 CP 病人和 20 控制) 为可溶的 TF 层次和凝结激活标记被调查[thrombin-antithrombin III 建筑群(梭织) ,凝血素碎片 1 + 2 (F1 + 2 )] 。结果:所有胰腺的癌房间线表示了 TF (8/8 ) ,他们中的大多数表示了 asTF (6/8 ) 。在蛋白质水平的 TF 表示没与癌房间线的区别相关。几乎,二件胰腺的癌症组织样品染色了为 TF (17/19 ) 积极。在 CP 的所有样品,弱染色被限制为胰腺的管房间,而一些仅仅内皮下房间在正常控制的 9/20 是积极的。TF 并且在 PCa 病人梭织层次而 2 铺平的提高的 F1 + 没与控制相比到达统计意义,显著地与控制相比被提高。在病人们梭织的 CP 和 F1 + , 2 个层次证明了显著地与控制相比被提高,尽管梭织举起少些比在 PCa 病人被读。结论:我们结束那除了起来房间膜上的 TF 的调整表示,可溶的 TF 可能在胰腺的癌症贡献凝结系统的激活。 | Stephan L Haas Ralf Jesnowski Michael Steiner Frank Hummel Jrg Ringel Christine Burstein Horst Nizze Stefan Liebe J Matthias Lhr | 2006 | World Journal of Gastroenterology2006，12，30： | 9 |
| 8 | 1 Gbps free-space deep-ultraviolet communications based on Ⅲ-nitride micro-LEDs emitting at 262 nm显示文摘The low modulation bandwidth of deep-ultraviolet(UV) light sources is considered as the main reason limiting the data transmission rate of deep-UV communications. Here, we present high-bandwidth Ⅲ-nitride microlight-emitting diodes(μLEDs) emitting in the UV-C region and their applications in deep-UV communication systems. The fabricated UV-C μLEDs with 566 μm2 emission area produce an optical power of 196 μW at the 3400 A∕cm2 current density. The measured 3 dB modulation bandwidth of these μLEDs initially increases linearly with the driving current density and then saturates as 438 MHz at a current density of 71 A∕cm2, which is limited by the cutoff frequency of the commercial avalanche photodiode used for the measurement. A deep-UV communication system is further demonstrated. By using the UV-C μLED, up to 800 Mbps and 1.1 Gbps data transmission rates at bit error ratio of 3.8 × 10-3 are achieved assuming on-off keying and orthogonal frequency-division multiplexing modulation schemes, respectively. | Xiangyu He Enyuan Xie Mohamed Sufyan Islim Ardimas Andi Purwita Jonathan J.D.McKendry Erdan Gu Harald Haas Martin D.Dawson | 2019 | Photonics Research2019，7，7： | 9 |
| 9 | Review of 500 single incision laparoscopic colorectalsurgery cases-Lessons learned显示文摘Single incision laparoscopic surgery(SILS) is a minimally invasive platform with specific benefits over traditional multiport laparoscopic surgery. The safety and feasibility of SILS has been proven, and the applications continue to grow with experience. After 500 cases at a high-volume, single-institution, we were able to standardize instrumentation and operative steps, as well as develop adaptations in technique to help overcome technical and ergonomic challenges. These technical adaptations have allowed the successful application of SILS to technically difficult patient populations, such as pelvic cases, inflammatory bowel disease cases, and high body mass index patients. This review is a frame of reference for the application and wider integration of the single incision laparoscopic platform in colorectal surgery. | Deborah S Keller Juan R Flores-Gonzalez Sergio Ibarra Eric M Haas | 2016 | World Journal of Gastroenterology2016，22，2： | 8 |
| 10 | Review of single incision laparoscopic surgery in colorectal surgery显示文摘As surgical techniques continue to move towards less invasive techniques,single incision laparoscopic surgery(SILS),a hybrid between traditional multiport laparoscopy and natural orifice transluminal endoscopic surgery,was introduced to further the enhanced outcomes of multiport laparoscopy. The safety and feasibility of SILS for both benign and malignant colorectal disease has been proven. SILS provides the potential for improved cosmesis,postoperative pain,recovery time,and quality of life at the drawback of higher technical skill required. In this article,we review the history,describe the available technology and techniques,and evaluate the benefits and limitations of SILS for colorectal surgery in the published literature. | Nisreen Madhoun Deborah S Keller Eric M Haas | 2015 | World Journal of Gastroenterology2015，21，38： | 8 |
| 11 | 旋转轴唇密封轴表面微螺旋槽的反向泵送特性显示文摘动力回油是提高旋转轴唇密封性能的有效手段。为了研究轴表面微观形貌对反向泵送效应的影响,对轴表面加工微螺旋槽进行数学建模,结合一种典型的油封结构,基于有限元静力分析,建立2维Reynolds方程,通过内外两层循环迭代进行数值求解。结果表明:轴表面微螺旋槽具有反向泵送效应,泵送率随转速的升高而增大。在轴表面加工微螺旋槽结构是实现零泄漏的一个可行思路。该算法可以用于其他油封结构的密封特性研究和轴表面微观形貌对密封性能的影响分析。 | 贾晓红 Richard F.Salant Steffen Jung Werner Haas 王玉明 | 2013 | 清华大学学报(自然科学版)2013，53，10： | 6 |
| 12 | 南极威德尔海冬季冰脊形拖曳力显示文摘利用2006年南极威德尔海冬季科学考察期间由机载激光高度计测得的海冰上表面形态数据,以拖曳分割理论为基础研究了冰脊形拖曳力及其对冰-气总拖曳力的贡献以及中性条件下对应10 m高度处风速的冰-气拖曳系数Cdn(10)。结果显示,在密集冰区,冰脊形拖曳力及其对总拖曳力的贡献随冰脊强度(脊高/脊距)的增大呈递增趋势,而随粗糙长度的增大而减小,对应于威德尔海冬季典型冰脊强度和粗糙长度,占总拖曳力的35%,说明了冰脊形拖曳力在冰-气界面动量交换中的重要作用。Cdn(10)随冰脊强度的增大而增大,但冰脊强度较小时,Cdn(10)随粗糙长度增大而增大;而对较大的冰脊强度,Cdn(10)则随粗糙长度增大而减小。 | 谭冰 卢鹏 李志军 HAAS Christian NICOLAUS Marcel | 2012 | 水科学进展2012，23，6： | 5 |
| 13 | Premotor biomarkers for Parkinson's disease-a promising direction of research显示文摘The second most serious neurodegenerative disease is Parkinson’s disease(PD).Over the past several decades,a strong body of evidence suggests that PD can begin years before the hallmark clinical motor symptoms appear.Biomarkers for PD are urgently needed to differentiate between neurodegenerative disorders,screen novel therapeutics,and predict eventual clinical PD before the onset of symptoms.Some clinical evaluations and neuroimaging techniques have been developed in the last several years with some success in this area.Moreover,other strategies have been utilized to identify biochemical and genetic markers associated with PD leading to the examination of PD progression and pathogenesis in cerebrospinal fluid,blood,or saliva.Finally,interesting results are surfacing from preliminary studies using known PD-associated genetic mutations to assess potential premotor PD biomarkers.The current review highlights recent advances and underscores areas of potential advancement. | Brian R Haas Tessandra H Stewart Jing Zhang | 2012 | Translational Neurodegeneration2012，1，1： | 5 |
| 14 | Enhanced expression of interleukin-18 in serum and pancreas of patients with chronic pancreatitis显示文摘AIM: To investigate interleukin-18 (IL-18) in patients with chronic panreatitis (CP). METHODS: We studied 29 patients with CP and 30 healthy controls. Peripheral blood mononuclear cells (PBMC) were isolated and incubated with 50 mmol/L ethanol, lipopolysaccharide (LPS) (doses 25 g/L, 250 g/L, 2500 g/L) and both agents for 24 h. Levels of IL-18 in the supernatants, and levels of IL-18, IL-12, interferon (IFN)-γ and soluble CD14 in the serum were analysed by ELISA technique. Expression of IL-18 in PBMC was investigated by reverse-transcription (RT)-PCR. IL-18 protein levels in CP tissue and in normal pancreas were studied by ELISA technique. IL-18 levels in PBMC and pancreatic tissue were determined by Westernblot. Im-munohistochemistry for pancreatic IL-18 expression was performed. RESULTS: In patients, IL-18 serum levels were signifi-cantly enhanced by 76% (mean: 289.9 ± 167.7 ng/L) compared with controls (mean: 165.2 ± 43.6 ng/L; P < 0.0005). IL-12 levels were enhanced by 25% in patients (18.3 ± 7.3 ng/L) compared with controls (14.7 ± 6.8ng/L, P = 0.0576) although not reaching the statistical significance. IFN-γ and soluble CD14 levels were not in-creased. In vitro, LPS stimulated significantly and dose-dependently IL-18 secretion from PBMC. Incubation with ethanol reduced LPS-stimulated IL-18 secretion by about 50%. The mRNA expression of IL-18 in PBMC and the response of PBMC to ethanol and LPS was similar in CP patients and controls. In PBMC, no significant differences in IL-18 protein levels were detected between patients and controls. IL-18 protein levels were increased in CP tissues compared to normal pancreatic tissues. IL-18 was expressed by pancreatic acinar cells and by infiltrating inflammatory cells within the pancreas. CONCLUSION: IL-18 originates from the chronically inflammed pancreas and appears to be involved in the fibrotic destruction of the organ. | Alexander Schneider Stephan L Haas Ralf Hildenbrand Sren Siegmund Iris Reinhard Helmut Nakovics Manfred V Singer Peter Feick | 2006 | World Journal of Gastroenterology2006，12，40： | 4 |
| 15 | 地质统计反演——一种用地震资料约束的随机油藏模拟序贯法显示文摘引言 在石油工业中,首次应用的地质统计反演法是Kriging技术,用于得到层位深度、地震速度、地层厚度或孔隙度或渗透率等(Haas和Viallix,1976)岩石物理特性。再将所得成像作为输入,在合理的位置计算油藏体积,或用于油藏模拟程序(Haas和Jousselin,1976)。 随着计算技术的发展,2D成像过渡到3D多相模拟已成为可能。就体积计算而言,Kriging技术和其它基于加权平均的标准成像技术仍然是令人满意的。不过。 | André Haas Oliver Dubrule 马中高 | 1995 | 石油物探译丛1995，，2： | 4 |
| 16 | Analysis on the crystals of sea ice cores derived from Weddell Sea,Antarctica显示文摘In order to understand the sea ice types and its region of origin frozen in Weddell Sea,27 ice cores were taken from Weddell Sea,Antarctica during September and October,2006.Their crystals were analyzed,and their ice forming processes were evaluated based on the crystals.Photos of the thin sections from two whole ice cores,and from polygonal granular superimposed ice were taken as well as corresponding stratigraphy descriptions.Vertical profiles of salinity, density and grain size were also obtained.Based on ice core structural texture,the findings include that: 1) although large and smooth ice floes were selected as the investigation sites, the ice sheet at the sampling position may be formed by rafted ice,consolidated ice ridges and second-year ice which were affected by dynamic and thermodynamic processes together subsequently.Ice formed in pure thermal growth comprises minority.The polygonal granular superimposed ice from refrozen wetted dense snow is one type of the ice in Antarctica.2) Of the all 27 ice cores,the granular,mixed granular-columnar and columnar crystals in sea ice occupy 28.7%,14.4% and 55.2%,respectively.3) The pure thermal growth ice is predominant in marginal sea ice zone;the rafted ice and consolidated ice ridges,even second-year ice and polygonal granular superimposed ice from dynamic and thermal effects were found in front of Larsen A Ice Shelf;the thermal growth ice froze in the polynyas of Larsen A,and was transferred outwards. | 李志军 Nicolaus Marcel Toyota Takenobu Haas Christian | 2010 | Chinese Journal of Polar Science2010，21，1： | 4 |
| 17 | Region-Specific Expression of Immunoregulatory Proteins on Microglia in the Healthy CNS显示文摘与中枢神经系统的空间结构高度一致,大部分的中枢神经系统疾病表现为区域性分布。虽然小胶质细胞已被公认在各种中枢神经系统疾病中发挥重要的作用,但是小胶质细胞是否表现为区域特异性目前还不清楚。因此,本研究目的是评估在健康成年小鼠的中枢神经系统的不同区域中小胶质细胞的不同表型。运用体外流式细胞仪分析CD11b,CD40,CD45,CD80,CD86,F4/80,TREM-2b,MHCII,CXCR3,CCR9以及CCR7的表面表达。这些免疫调节标记物大部分均存在于小胶质细胞上并且在表达水平上有明显的区域特异性差异。这些发现在很大程度上证实了在健康成年小鼠中枢神经系统的小胶质细胞中存在着免疫多样性。 | ALEXANDER H.DE HAAS HENDRIKUS W.G.M.BODDEKE KNUT BIBER | 2008 | 神经损伤与功能重建2008，3，3： | 4 |
| 18 | Inflammatory Bowel Disease Is a Risk Factor for Recurrent Venous Thromboembolism显示文摘 | Gottfried Novacek Ansgar Weltermann Anna Sobala Herbert Tilg Wolfgang Petritsch Walter Reinisch Andreas Mayer Thomas Haas Arthur Kaser Thomas Feichtenschlager Harry Fuchssteiner Peter Knoflach Harald Vogelsang Wolfgang Miehsler Reingard Platzer Wolfgang T | 2010 | Gastroenterology2010，，3： | 4 |
| 19 | Prognostic value of CA 19-9, CEA, CRP, LDH and bilirubin levels in locally advanced and metastatic pancreatic cancer: results from a multicenter, pooled analysis of patients receiving palliative chemotherapy显示文摘 | Michael Haas Volker Heinemann Frank Kullmann Rüdiger P. Laubender Christina Klose Christiane J. Bruns Stefan Holdenrieder Dominik P. Modest Christoph Schulz Stefan Boeck | 2013 | Journal of Cancer Research and Clinical Oncology2013，，4： | 4 |
| 20 | 多种径向高压密封材料的性能测试与比较显示文摘采用间隙挤出实验和磨损实验,研究了几种高压转轴密封材料的抗间隙挤出性能和抗磨损性能。结果表明:PTFE复合材料的抗间隙挤出和抗变形性能较差,而聚酮和聚氨酯材料的较好;聚酮、超高分子聚乙烯、PTFE复合材料以及聚氨酯的耐磨性能均较好,但PTFE复合材料(PTFE聚合物复合材料除外),尤其是含青铜的PTFE复合材料,对相对旋转面的损伤严重;比较的几种密封材料中,超高分子聚乙烯具有最低的摩擦因数,但其耐高温能力最弱;聚氨酯的摩擦因数与PTFE复合材料处于同一级别。 | Markus Henzler Werner Haas 沈洁 | 2010 | 润滑与密封2010，35，1： | 4 |
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