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| 1 | Viral and host causes of fatty liver in chronic hepatitis B显示文摘AIM: To investigate the viral and host causes of fatty liver in chronic hepatitis B patients and the role of fat deposits in liver damage.METHODS: A total of 164 patients (113 males and 51 females, average age 35±11.3 years, and range 10-62 years) with previously untreated chronic hepatitis B were included in the study. The patients were divided into two groups depending on the result of liver biopsy: group without steatosis (100 patients with <5% hepatosteatosis) and group with steatosis (64 patients with >5% hepatosteatosis). The groups were compared in terms of gender, body mass index (BMI), liver enzymes (ALT, AST, ALP, GGT), cholesterol, triglyceride, HBeAg, viral load, and histological findings. In the group with steatosis, the patients were subdivided depending on the degree of steatosis into mild group (45 patients with 5-24% steatosis), and severe group (19 patients with >25% steatosis). RESULTS: In the group of chronic hepatitis B with steatosis, the mean age, BMI, cholesterol, and triglyceride levels were significantly higher than those in the group without steatosis (P<0.05). Steatosis was found in 53 (46.9%) of male patients and 11 (22%) of female patients (P<0.05). No significant difference was found in the positivity of ALT, AST, ALP, GGT, HBeAg, viral load, histological activity index (HAI) and stage between the two groups (P>0.05). In the group with severe steatosis, the BMI was significantly higher than that in the group with mild steatosis (P<0.05). No significant difference was found in the other parameters between the groups (P>0.05). CONCLUSION: Steatosis in chronic hepatitis B appears to be a result of metabolic factors of the host rather than the effect of viruses. Steatosis is unrelated to the HAI and degree of fibrosis, which are considered as the histological indicators of liver damage. | Emin Altiparmak Seyfettin K(o|¨)klü Mesut Yalinkilic Osman Yüksel Bahattin Cicek Ertugrul Kayacetin Tülin Sahin | 2005 | World Journal of Gastroenterology2005，11，20： | 52 |
| 2 | Chemical composition and in vitro fermentation characteristics of high sugar forage sorghum as an alternative to forage maize for silage making in Tarim Basin, China显示文摘The chemical composition, mineral profile and in vitro fermentation characteristics of maize(MZ), high sugar forage sorghum(HS) and forage sorghum(FS), and silages made from each forage type were measured. The MZ and MZ silage(MZS) had higher crude protein, starch and ether extract contents than both sorghum forages and sorghum silages. HS had higher ash and water-soluble carbohydrate concentrations than FS and MZ. MZ, MZS, HS and HS silage(HSS) had lower neutral detergent fibre, acid detergent fibre and acid detergent lignin than FS and FS silage(FSS). FSS had higher dry matter(DM) and p H than MZS and HSS. HSS contained higher concentrations of P and K than FSS and MZS. MZS and HSS had higher in vitro dry matter and organic matter digestibility, CH4 production, total volatile fatty acids, acetate and propionate than FSS. p H was higher for FSS than for HSS, and ammonia was lower for HSS than for MZS and FSS. HSS had higher gas production than MZS and FSS after 2, 4, 6 and 8 h incubation. MZS had higher gas production than HSS and FSS after 26 and 28 h of incubation. The results indicate that HS may substitute for MZ to make good quality silage. However, animal studies are needed to assess the acceptability and feeding values of HSS vs. MZS for ruminant production. | ZHANG Su-jiang Abdul Shakoor Chaudhry Diky Ramdani Amerjan Osman GUO Xue-feng Grant Raymond Edwards Long Cheng | 2016 | Journal of Integrative Agriculture2016，15，1： | 28 |
| 3 | Achieving superlubricity in DLC films by controlling bulk, surface, and tribochemistry显示文摘Superlubricity refers to a sliding regime in which contacting surfaces move over one another without generating much adhesion or friction[1].From a practical application point of view,this will be the most ideal tribological situation for many moving mechanical systems mainly because friction consumes large amounts of energy and causes greenhouse gas emissions[2].Superlubric sliding can also improve performance and durability of these systems.In this paper,we attempt to provide an overview of how controlled or targeted bulk,surface,or tribochemistry can lead to superlubricity in diamond-like carbon(DLC)films.Specifically,we show that how providing hydrogen into bulk and near surface regions as well as to sliding contact interfaces of DLC films can lead to super-low friction and wear.Incorporation of hydrogen into bulk DLC or near surface regions can be done during deposition or through hydrogen plasma treatment after the deposition.Hydrogen can also be fed into the sliding contact interfaces of DLCs during tribological testing to reduce friction.Due to favorable tribochemical interactions,these interfaces become very rich in hydrogen and thus provide super-low friction after a brief run-in period.Regardless of the method used,when sliding surfaces of DLC films are enriched in hydrogen,they then provide some of the lowest friction coefficients(i.e.,down to 0.001).Time-of-flight secondary ion mass spectrometer(TOF-SIMS)is used to gather evidence on the extent and nature of tribochemical interactions with hydrogen.Based on the tribological and surface analytical findings,we provide a mechanistic model for the critical role of hydrogen on superlubricity of DLC films. | Ali ERDEMIR Osman ERYILMAZ | 2014 | Friction2014，2，2： | 22 |
| 4 | Cultured meat from muscle stem cells: A review of challenges and prospects显示文摘Growing muscle tissue in culture from animal stem cells to produce meat theoretically eliminates the need to sacrifice animals. So-called 'cultured' or 'synthetic' or 'in vitro' meat could in theory be constructed with different characteristics and be produced faster and more efficiently than traditional meat. The technique to generate cultured muscle tissues from stem cells was described long ago, but has not yet been developed for the commercial production of cultured meat products. The technology is at an early stage and prerequisites of implementation include a reasonably high level of consumer acceptance, and the development of commercially-viable means of large scale production. Recent advancements in tissue culture techniques suggest that production may be economically feasible, provided it has physical properties in terms of colour, flavour, aroma, texture and palatability that are comparable to conventional meat. Although considerable progress has been made during recent years, important issues remain to be resolved, including the characterization of social and ethical constraints, the fine-tuning of culture conditions, and the development of culture media that are cost-effective and free of animal products. Consumer acceptance and confidence in in vitro produced cultured meat might be a significant impediment that hinders the marketing process. | Isam T Kadim Osman Mahgoub Senan Baqir Bernard Faye Roger Purchas | 2015 | Journal of Integrative Agriculture2015，14，2： | 20 |
| 5 | Oxidative stress and nitric oxide in rats with alcohol-induced acute pancreatitis显示文摘AIM: Oxygen free radical mediated tissue damage is well established in pathogenesis of acute pancreatitis (AP).Whether nitric oxide (NO) plays a deleterious or a protective role is unknown. In alcohol-induced AP, we studied NO, lipooxidative damage and glutathione in pancreas, lung and circulation.METHODS: AP was induced in rats (n = 25) by injection of ethyl alcohol into the common biliary duct. A sham laparatomy was performed in controls (n = 15). After 24 h the animals were killed, blood and tissue sampling were done.RESULTS: Histopathologic evidence confirmed the development of AP. Marked changes were observed in the pulmonary tissue. Compared with controls, the AP group displayed higher values for NO metabolites in pancreas and lungs, and thiobarbituric acid reactive substances in circulation. Glutathione was lower in pancreas and in circulation. Glutathione and NO were positively correlated in pancreas and lungs of controls but negatively correlated in circulation of experimental group. In the experimental group, plasma thiobarbituric acid reactive substances were negatively correlated with pancreas thiobarbituric acid reactive substances but positively correlated with pancreas NO.CONCLUSION: NO increases in both pancreas and lungs in AP and NO contributes to the pathogenesis of AP under oxidative stress. | Gülnur Andican Remisa Gelisgen Ethem Unal Osman Baran Tortum Sergülen Dervisoglu Tayfun Karahasanoglu Gülden Bur(?)ak | 2005 | World Journal of Gastroenterology2005，11，15： | 18 |
| 6 | Potential Toxicological and Cardiopulmonary Effects of PM2,5 Exposure and Related Mortality:Findings of Recent Studies Published during 2003-2013显示文摘INTRODUCTION Air pollution has become a serious environmental issue owing to its diverse harmful effects on the physical and biological environment.According to the Environmental Protection Agency(EPA)and the World Health Organization(WHO)[1-2],air pollution affects millions of people worldwide.Hundreds of thousands of deaths each year and a range of diseases, | Mohammed O.A.Mohammed SONG Wei Wei MA Wan Li LI Wen Long LI Yi Fan Afed Ullah Khan Mohammed A.E.M.Ibrahim Osman Adam Maarouf Alshebli A Ahmed John J.Ambuchi | 2016 | Biomedical and Environmental Sciences2016，29，1： | 16 |
| 7 | How much helpful is the capsule endoscopy for the diagnosis of small bowel lesions?显示文摘瞄准:估计实际上实用性和在有怀疑的小肠损害的一组病人的这个新方法的诊断产量。方法:囊内视镜(CE ) 由使用 M2A 囊内诊镜 TM 的检查(给定的成像, Yoqneam,以色列) 在三十九个病人被执行(26 男性, 13 女性) 与怀疑的小肠的损害。创作病人如下:在 23 个病人的阴暗胃肠的流血,已知的 Crohn 在 6 个病人, CE 在被用来评估疾病的严厉和延期的疾病,在 8 个病人,的长期的腹泻在一个病人的腹的疼痛和在有未知起源的一个病人的恶意。结果:在二个病人, CE 失败了。不同畸形总的来说在 26 个病人被揭示。畸形的察觉率在有阴暗胃肠的流血的病人之中是最高的,流血的来源与阴暗流血在 23 个病人中的 17 个被表明(73.9%) 。Entero-Behcet 被 CE 作为阴暗胃肠的流血的来源在二个病人诊断。在有已知的 Crohn 的疾病的 6 个病人, CE 揭示了疾病延期的更好的评估。在 8 中的 3 个(37.5%) 有长期的腹泻的病人;CE 作为长期的腹泻的原因揭示了一些粘膜畸形。在有 unexplained 的一个病人腹的疼痛并且在有未知起源的一个癌症病人,, CE 检查是正常的。结论:在我们的相对小的系列,我们发现囊内视镜检查法在阴暗胃肠的流血、长期的腹泻的诊断并且在估计 Crohn 的疾病的延期特别地是一个有用诊断工具。 | Osman Ersoy Bulent Sivri Serap Arslan Figen Batman Yusuf Bayraktar | 2006 | World Journal of Gastroenterology2006，12，24： | 15 |
| 8 | Endovascular treatment of carotid cavernous sinus fistula: A systematic review显示文摘Carotid cavernous sinus fistulas are abnormal communications between the carotid system and the cavernous sinus. Several classification schemes have described carotid cavernous sinus fistulas according to etiology, hemodynamic features, or the angiographic arterial architecture. Increased pressure within the cavernous sinus appears to be the main factor in pathophysiology. The clinical features are related to size, exact location, and duration of the fistula, adequacy and route of venous drainage and the presence of arterial/venous collaterals. Noninvasive imaging (computed tomography, magnetic resonance, computed tomography angiography, magnetic resonance angiography, Doppler) is often used in the initial workup of a possible carotid cavernous sinus fistulas. Cerebral angiography is the gold standard for the definitive diagnosis, classification, and planning of treatment for these lesions. The endovascular approach has evolved as the mainstay therapy for definitive treatment in situations including clinical emergencies. Conservative treatment, surgery and radiosurgery constitute other management options for these lesions. | Bora Korkmazer Burak Kocak Ercan Tureci Civan Islak Naci Kocer Osman Kizilkilics | 2013 | World Journal of Radiology2013，5，4： | 14 |
| 9 | 基于区间多阶段随机规划模型的灌区多水源优化配置显示文摘灌区多水源灌溉系统中存在许多不确定性因素,随着系统环境的变化及不确定性因素的影响,导致其配水过程具有动态特征。针对灌区多水源灌溉系统的配水特点,该文建立基于区间多阶段随机规划的灌区多水源优化配置模型。同时,考虑灌溉水对作物产量的影响,引入水分敏感指数权重系数,并以黑龙江省和平灌区水稻不同生育阶段灌溉水资源优化配置进行实例研究。结果表明,在不同来水情境下,管理者可根据各个生育阶段水分敏感指数权重系数,判断作物不同生育阶段的需水敏感程度,当来水情境的来水量多时,会产生余水量,可调配给下一生育阶段;当来水情境的来水量少时,管理者可在减少灌溉水量与增加外调水之间进行权衡,并根据需水关键期与需水非关键期做出决策,使水资源在作物生育阶段间及作物生育阶段内进行分配,实现灌区多水源灌溉系统的动态配水。该模型的应用在确保作物产量的同时,使灌溉水资源在作物各个生育阶段进行合理配置,有效地避免了水资源浪费,对提高灌溉水利用效率、保证水资源的可持续利用具有重要意义。 | 付强 刘银凤 刘东 李天霄 刘巍 Amgad Osman | 2016 | 农业工程学报2016，32，1： | 14 |
| 10 | High-speed colour-converting photodetector with all-inorganic CsPbBr_(3) perovskite nanocrystals for ultraviolet light communication显示文摘Optical wireless communication(OWC)using the ultra-broad spectrum of the visible-to-ultraviolet(UV)wavelength region remains a vital field of research for mitigating the saturated bandwidth of radio-frequency(RF)communication.However,the lack of an efficient UV photodetection methodology hinders the development of UV-based communication.The key technological impediment is related to the low UV-photon absorption in existing silicon photodetectors,which offer low-cost and mature platforms.To address this technology gap,we report a hybrid Sibased photodetection scheme by incorporating CsPbBr_(3) perovskite nanocrystals(NCs)with a high photoluminescence quantum yield(PLQY)and a fast photoluminescence(PL)decay time as a UV-to-visible colourconverting layer for high-speed solar-blind UV communication.The facile formation of drop-cast CsPbBr_(3) perovskite NCs leads to a high PLQY of up to ~73% and strong absorption in the UV region.With the addition of the NC layer,a nearly threefold improvement in the responsivity and an increase of ~25% in the external quantum efficiency(EQE)of the solar-blind region compared to a commercial silicon-based photodetector were observed.Moreover,timeresolved photoluminescence measurements demonstrated a decay time of 4.5 ns under a 372-nm UV excitation source,thus elucidating the potential of this layer as a fast colour-converting layer.A high data rate of up to 34 Mbps in solar-blind communication was achieved using the hybrid CsPbBr_(3)-silicon photodetection scheme in conjunction with a 278-nm UVC light-emitting diode(LED).These findings demonstrate the feasibility of an integrated high-speed photoreceiver design of a composition-tuneable perovskite-based phosphor and a low-cost silicon-based photodetector for UV communication. | Chun Hong Kang Ibrahim Dursun Guangyu Liu Lutfan Sinatra Xiaobin Sun Meiwei Kong Jun Pan Partha Maity Ee-Ning Ooi Tien Khee Ng Omar F.Mohammed Osman M.Bakr Boon S.Ooi | 2019 | Light(Science & Applications)2019，8，1： | 14 |
| 11 | Endovascular treatment of extracranial vertebral artery stenosis显示文摘Percutaneous angioplasty and stenting for the treatment of extracranial vertebral artery(VA) stenosis seems a safe,effective and useful technique for resolving symptoms and improving blood flow to the posterior circulation,with a low complication rate and good long-term results.In patients with severe tortuosity of the vessel,stent placement is a real challenge.The new coronary balloon-expandable stents may be preferred.A large variability of restenosis rates has been reported.Drug-eluting stents may be the solution.After a comprehensive review of the literature,it can be concluded that percutaneous angioplasty and stenting of extracranial VA stenosis is technically feasible,but there is insufficient evidence from randomized trials to demonstrate that endovascular management is superior to best medical management. | Burak Kocak Bora Korkmazer Civan Islak Naci Kocer Osman Kizilkilic | 2012 | World Journal of Radiology2012，4，9： | 13 |
| 12 | Pneumatosis cystoides intestinalis:A single center experience显示文摘AIM:To share our experience of the management and outcomes of patients with pneumatosis cystoides intestinalis (PCI).METHODS:The charts of seven patients who underwent surgery for PCI between 2001 and 2009 were reviewed retrospectively.Clinical features,diagnoses and surgical interventions of patients with PCI are discussed.RESULTS:Seven patients with PCI (3 males,4 females;mean age,50 ± 16.1 years;range,29-74 years) were analyzed.In three of the patients,abdominal pain was the only complaint,whereas additional vomiting and/or constipation occurred in four.Leukocytosis was detected in four patients,whereas it was within normal limits in three.Subdiaphragmatic free air was observed radiologically in four patients but not in three.Six of the patients underwent an applied laparotomy,whereas one underwent an applied explorative laparoscopy.PCI localized to the small intestine only was detected in four patients,whereas it was localized to the small intestine and the colon in three.Three patients underwent a partial small intestine resection and four did not after PCI was diagnosed.Five patients were diagnosed with secondary PCI and two with primary PCI when the surgical findings and medical history were assessed together.Gastric atony developed in one case only,as a complication during a postoperative follow-up of 5-14 d.CONCLUSION:Although rare,PCI should be considered in the differential diagnosis of acute abdomen.Diagnostic laparoscopy and preoperative radiological tests,including computed tomography,play an important role in confirming the diagnosis. | Zulfu Arikanoglu Erhan Aygen Cemalettin Camci Sami Akbulut Murat Basbug Osman Dogru Ziya Cetinkaya Cuneyt Kirkil | 2012 | World Journal of Gastroenterology2012，18，5： | 13 |
| 13 | Utilisation of transparent synthetic soil surrogates in geotechnical physical models: A review显示文摘Efforts to obtain non-intrusive measurement of deformations and spatial flow within soil mass prior to the advent of transparent soils have perceptible limitations. The transparent soil is a two-phase medium composed of both the synthetic aggregate and fluid components of identical refractive indices aiming at attaining transparency of the resulting soil. The transparency facilitates real life visualisation of soil continuum in physical models. When applied in conjunction with advanced photogrammetry and image processing techniques, transparent soils enable the quantification of the spatial deformation, displacement and multi-phase flow in physical model tests. Transparent synthetic soils have been successfully employed in geotechnical model tests as soil surrogates based on the testing results of their geotechnical properties which replicate those of natural soils. This paper presents a review on transparent synthetic soils and their numerous applications in geotechnical physical models. The properties of the aggregate materials are outlined and the features of the various transparent clays and sands available in the literature are described. The merits of transparent soil are highlighted and the need to amplify its application in geotechnical physical model researches is emphasised. This paper will serve as a concise compendium on the subject of transparent soils for future researchers in this field. | Abideen Adekunle Ganiyu Ahmad Safuan A.Rashid Mohd Hanim Osman | 2016 | Journal of Rock Mechanics and Geotechnical Engineering2016，8，4： | 12 |
| 14 | 不同成熟阶段辣椒挥发性香味物质的固相微萃取分析显示文摘利用固相微萃取法(SPME)分析优质商品辣椒三个不同成熟阶段(绿色、转色和红色)挥发性香味物质的变化,采用统计学的最优化方法,得到萃取辣椒6种主要香味成分——已醛、2-异丁基-3-甲氧基吡嗪、2,3-丁二酮、3-蒈烯、转-2-已烯醛和芳樟醇的最佳实验条件,即固相微萃取温度60℃,时间30min。并用GC-MS观察辣椒鲜果中这些重要香味物质的变化。结果表明,随着辣椒的成熟,已醛和2-异丁基-3-甲氧基吡嗪明显减少,而与甜味和果香味有关的物质如2,3-丁二酮、3-蒈烯、转-2-已烯醛和芳樟醇则增加。利用SPME法能很容易检测到辣椒香味化合物的含量,而且,该方法和顶空分析法一样,也可用来分析商品辣椒的品质或挥发性物质。 | M.M. Mazida M.M. Salleh H. Osman 戴雄泽 | 2006 | 辣椒杂志2006，，2： | 12 |
| 15 | Reversibility of minimal hepatic encephalopathy following liver transplantation in Egyptian cirrhotic patients显示文摘AIM To evaluate the reversibility of minimal hepatic encephalopathy(MHE) following liver transplantation(LT) in Egyptian cirrhotic patients. METHODS This prospective study included twenty patients with biopsy-proven liver cirrhosis listed for LT and twenty ageand sex-matched healthy control subjects. All underwent neuro-psychiatric examination, laboratory investigations, radiological studies and psychometric tests including trail making test A(TMT A), TMT B, digit symbol test and serial dotting test. The psychometric hepatic encephalopathy score(PHES) was calculated for patients to diagnose MHE. Psychometric tests were repeated six months following LT in the cirrhotic patient group. RESULTS Before LT, psychometric tests showed highly significant deficits in cirrhotic patients in comparison to controls(P < 0.001). There was a statistically significant improvement in test values in the patient group after LT; however, their values were still significantly worse than those of the controls(P < 0.001). The PHES detected MHE in 16 patients(80%) before LT with a median value of -7 ± 3.5. The median PHES value was significantly improved following LT, reaching-4.5 ± 5(P < 0.001), and the number of patients with MHE decreased to 11(55%). The pre-transplant model for end-stage liver disease(MELD) score ≥ 15 was significantly related to the presence of post-transplant MHE(P = 0.005). More patients in whom reversal of MHE was observed had a pre-transplant MELD score < 15.CONCLUSION Reversal of MHE in cirrhotic patients could be achieved by LT, especially in those with a MELD score < 15. | Mahmoud A Osman Moataz M Sayed Khaled A Mansour Shereen A Saleh Wesam A Ibrahim Sara M Abdelhakam Mohamed Bahaa Wael A Yousry Hosam S Elbaz Reginia N Mikhail Azza M Hassan Ehab H Elsayed Dalia A Mahmoud | 2016 | World Journal of Hepatology2016，8，30： | 11 |
| 16 | Ischemic stroke due to carbon monoxide intoxication: Two case reports显示文摘Dear editor,Following its entrance into the human body through inhalation,carbon monoxide(CO)forms carboxyhemoglobin(COHb)by binding to hemoglobin(Hb)within the blood.Massive ischemic tissue necrosis occurs in 0.5%–1% of cases with CO poisoning.^([1])The affinity of CO to Hb is 200–250 times more | Atif Bayramoglu Abdullah Osman Kocak Esra Kadioglu | 2018 | World Journal of Emergency Medicine2018，9，1： | 11 |
| 17 | 膀胱过度活动症:发病机制及治疗现状显示文摘内容摘要OAB为一类发病率较高的慢性疾病,严重影响患者的生活质量,给个人及社会带来了巨大的经济负担。OAB为基于症候群进行诊断的综合征,定义为“尿急,伴或不伴急迫性尿失禁,常伴有尿频和夜尿症状”。OAB无明确的病因,不包括由急性尿路感染或其他形式的膀胱尿道局部病变所致的症状。OAB的核心症状为尿急,尿急是指一种突发、强烈的排尿欲望,且很难被主观抑制而延迟排尿。 | Nadir I. Osman Altaf Mangera Christopher R. Chapple 廖利民 | 2012 | 中华泌尿外科杂志2012，33，9： | 10 |
| 18 | Liver transplantation: Yesterday, today and tomorrow显示文摘With the advances in technical skills, management of postoperative complications and improvements in immunosuppressive drugs, liver transplantation is the standard treatment for many patients with chronic liver disease. Today, shortage of donor organs seems to be the major limiting factor for the application of liver transplantation. This review focuses on five issues that are challenging to clinical practice of liver transplantation and relevant to gastroenterologists. These include living donor liver transplantation, recurrent viral hepatitis, non-heart-beating donors, hepatocellular carcinoma, and ABO incompatible liver transplantation. Living donor and non-heart beating donor transplantations were initiated as a solution to increase the donor organ pool and it is expected that there will be an increase in the number of these donors. Recurrent hepatitis C and hepatocellular carcinoma following liver transplantation are among major problems and ongoing research in these diseases may lead to better outcomes in these recipients. | Osman Abbasoglu | 2008 | World Journal of Gastroenterology2008，14，20： | 10 |
| 19 | Clinical significance of Helicobacter pylori cagA and iceA genotype status显示文摘AIM:To study the presence of Helicobacter pylori(H.pylori) virulence factors and clinical outcome in H.pylori infected patients.METHODS:A prospective analysis of ninety nine H.pylori-positive patients who underwent endoscopy in our Endoscopy suite were included in this study.DNA was isolated from antral biopsy samples and the presence of cagA,iceA,and iceA2 genotypes were determined by polymerase chain reaction and a reverse hybridization technique.Screening for H.pylori infection was performed in all patients using the rapid urease test(CLO-Test).RESULTS:From a total of 326 patients who underwent endoscopy for upper gastrointestinal symptoms,99 patients were determined to be H.pylori-positive.Peptic ulceration was seen in 33 patients(33%).The main virulence strain observed in this cohort was the cagA gene isolated in 43 patients.cagA was associated with peptic ulcer pathology in 39.5%(17/43) and in 28%(16/56) of non-ulcer patients.IceA1 was present in 29 patients(29%) and iceA2 in 15 patients(15%).Ulcer pathology was seen in 39%(11/29) of patients with iceA1,while 31%(22/70) had normal findings.The corresponding values for iceA2 were 33%(5/15) and 33%(28/84),respectively.CONCLUSION:Virulence factors were not common in our cohort.The incidence of factors cagA,iceA1 and iceA2 were very low although variations were noted in different ethnic groups. | Nasser Amjad Hussain Ali Osman Najibah Abdul Razak Junaini Kassian Jeffri Din Nasuruddin bin Abdullah | 2010 | World Journal of Gastroenterology2010，16，35： | 7 |
| 20 | 螺旋轴流式油气混输泵导叶内非定常流动DMD分析显示文摘为研究螺旋轴流式油气混输泵内的非稳态特性,对泵内非稳态气液两相流动进行数值模拟分析,得到不同流量、不同叶高的流场分布。对流量100 m^3/h、含气量30%工况下的非定常速度场进行动态模态分解(DMD),得到能够反映速度场特征的前4阶主要模态场及其相应的频率信息。导叶内流场特征可分解为耗散模态、基本模态以及高阶动态模态特征,耗散模态随时间逐渐衰减,对流场的发展影响较小;基本模态是频率为零的稳态特征,能够反映叶片型线等流道几何特征引起的稳态流场特征;3阶及4阶动态模态反映了叶轮与导叶间的动静干扰,在不断向导叶下游发展的过程中逐步耗散,动静干扰作用对导叶下游流动影响较小。对相态场进行分解得到其主要模态场特征及其频率信息,其基本模态特征表明,在导叶叶高较大的截面上,流速越高,则含气量越低;相态场的高阶动态模态特征与速度场动态模态特征基本一致。DMD模态分析方法能够清楚地分析油气混输泵导叶内复杂流动的非定常特性。 | 张人会 王少华 OSMAN JUMA S A | 2020 | 农业机械学报2020，51，9： | 7 |
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