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The Performance Analysis of the Wavelet-OFDM New Scheme in AWGN Channel

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Journal of Physical Science and Application 2014年第2期4卷 100-106页

作者： Alaa Ghaith Rima hatoum Hiba Mradand Ali Alaeddine Electronics and Physics Department Faculty of Sciences L Lebanese University Beirut Hadath 65 73-14 Lebanon

Orthogonal frequency division multiplexing （OFDM） is a special form of multi-carrier transmission that uses the policy of divide and rule. In this scheme, a large number of orthogonal, overlapping, narrow band sub-channels （subcarriers） are transmitted in parallel and divide the available transmission bandwidth. This techniqueis originally based on the Fast Fourier Transform of the information data. In order to improve the performance of the OFDM and overcome some limitations, an alternative OFDM approach based on the Wavelet Transform is proposed. In this paper, we study the performance of such systems in additive white Gaussian channel （AWGN）. MATLAB simulations are realized and performance comparisons are presented.

关键词： Multi-carrier modulation discrete wavelet transform OFDM. wavelet packet transform Fourier-based OFDM wavelet-based

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多功能切丝机软钢

美术观察 2016年第3期 F0004-F0004页

作者： mona hatoum

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美术观察 2015年第11期 145-145页

作者： Mona hatoum

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多功能切丝机

美术观察 2016年第3期 162-162页

作者： Mona hatoum

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美术观察 2015年第11期 145-145页

作者： Mona hatoum

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两兄弟

Case Report: Parasitic Leiomyoma

作者： (巴西)米尔顿·哈通(Milton hatoum)

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Journal of Cancer Therapy 2019年第9期10卷 722-726页

作者： G. Yared J. Darido R. Chahine J. Khadra R. Bachnak R. Bou Ghanem K. Dimashkie M. Kharroubi I. Farhat I. hatoum Department of Obstetrics and Gynecology Rafic Hariri University Hospital Beirut Lebanon Department of Obstetrics and Gynecology The Lebanese University Beirut Lebanon Department of Urology Surgery Rafic Hariri University Hospital Beirut Lebanon

Parasitic Leiomyoma (PL) is considered a rare variant of uterine fibroids occurring outside the uterus. We hereby report a challenging case of parasitic leiomyoma that is considered rare in the literature with all its particularities. A 62 YO lady is known to have a history of diabetes, right breast carcinoma, appendectomy and normal vaginal deliveries presenting with a two-year history of back and abdominal pain with recent urinary symptoms. Therefore, an abdominopelvic Ct scan and MRI were done showing uterine fibroids compressing the bladder. The patient underwent an exploratory laparotomy. A palpable intravesical mass was identified. Transurethral cystoscopic resection was performed. Pathology results confirmed the leiomyomatous nature of the mass. Postoperatively, the surgery was complicated with a wound dehiscence and a hematoma formation on the left lateral wall of the bladder that was treated conservatively with a good follow-up outcome.

关键词： Parasitic Leiomyoma Uterine Fibroids

辐射诱导的小肠网状结构形成与获得性微血管功能失调

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世界核心医学期刊文摘（胃肠病学分册） 2006年第4期2卷 44-44页

作者： hatoum O.A Binion D.G Phillips S.A. 郑世成 Division of Cardiovascular Medicine Medical College of Wisconsin Milwaukee WI 53226 United StatesDr.

Background and aims: Radiation therapy of abdominal and pelvic solid tumours results in late intestinal toxicity of a severe nature in approximately 5%of cases. These manifestations may include ischaemia and stricture formation,which may present as “webs". These webs are likely to play a role in the pathogenesis of recurrent bowel obstruction. The mechanisms of microvascular injury to the bowel in the setting of radiation have not been defined. We hypothesised that microvascular dysfunction with impaired vasodilation to acetylcholine (Ach) would be a n acquired pathophysiological abnormality in radiation and “web" formation. Met hods: A 40 year old patient treated with radiation, two years previously, for an anal squamous cell cancer presented with recurrent small bowel obstruction. “W ebs" in the distal ileum were detected using wireless capsule endoscopy, after s mall bowel barium radiographs failed to demonstrate a lesion. Following resectio n, freshly isolated 50-150 μmdiameter arterioles from the “web" and adjacent normal calibre bowel were analysed with histology and microvessel physiological studies. Results: After constriction (30-50%) with endothelin, dilation to gra ded doses of Ach (10-9-10-4 M) was observed in vessels dissected from the str icture and the adjacent normal calibre area. Ach dilation was reduced in vessels from “web" (mean diameter 7 (2)%; n = 3, p < 0.01) compared with the adjacent unaffected bowel (mean diameter 85 (5)%). Dihydroethidine and dichlorofluoresc ein diacetate intravital staining demonstrated increased reactive oxygen species production in microvessels from “web" compared with adjacent normal calibre bo wel. Histology from the structured bowel demonstrated narrowing of the arterial lumen due to intimal and muscularis propria fibrosis, with endothelial preservat ion. Conclusions: External radiation is associated with acquired microvascular e ndothelial dysfunction and “web" formation in the small bowel.

关键词：功能失调辐射诱导肠腔狭窄胶囊内镜病理学方法实体肿瘤剂量级回肠动脉血管舒张效应鳞状上

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炎症性肠病中的肠系膜静脉血栓形成

世界核心医学期刊文摘（胃肠病学分册） 2005年第7期1卷 41-41页

作者： hatoum O.A. Spinelli K.S. Abu- Hajir M. D.G. Binion 樊菁 Div. of Gas troenterol. and Hepatol. Froedtert Hospital East Medical College of Wisconsin Milwaukee WI 53226 United States Dr.

Mesenteric venous thrombosis (MVT) is a rare but potentially catastrophic cli nical complication, which may lead to ischemia or infarction of the intestine an d/or the emergence of portal hypertension. An association between inflammatory b owel disease (IBD) and MVT has previously been described, but clinical factors t hat may contribute to this complication in the setting of IBD are not well chara cterized. Diagnosis of MVT in IBD is difficult, as patients frequently present w ith nonspecific abdominal discomfort, which may delay diagnosis and initiation o f treatment. We report 6 of 545 IBD patients at our center (1.1% ) that develop ed MVT, and describe presentation, diagnostic approaches, treatment options, und erlying contributing factors, and outcome. The diagnosis was determined with abd ominal computed tomography (CT) in 5 of 6 cases. Clinical factors, which were th ought to contribute to MVT, included underlying hypercoagulability, low- flow s tate, uncontrolled inflammation, perioperative time period, and prior surgical m anipulation of the portal vein following orthotopic liver transplantation. There were no deaths as a result of MVT, although 1 patient developed severe portal h ypertension and another experienced intestinal infarction requiring extensive re section. We conclude that MVT is an important clinical consideration in IBD pati ents, specifically during the perioperative setting, and diagnosis is facilitate d with the use of CT scan.

关键词：炎症性肠病肠缺血门脉高压肠梗死临床并发症围手术期原位肝移植术后门静脉文献描述临床因素

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