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| 1 | Ti-Mo-Sn合金显微组织、力学性能和形状记忆性能(英文)显示文摘研究Mo作为β相稳定元素,对Ti-Mo-Sn合金相组成、显微组织、力学性能和形状记忆性能的影响。通过电弧熔炼法制备不同成分的Ti-xMo-3Sn(x=2,4,6,摩尔分数,%)合金,并制备二元合金Ti-6Mo作为对照组。Ti-xMo-3Sn合金具有硬度低和韧性高(厚度可减少90%)的特点,而Ti-6Mo合金则表现出脆性行为,硬度高、韧性差。场发射扫描电镜(FESEM)下发现圆形的无热ω(ωath)析出相。X射线衍射结果也证实铸态和固溶处理-淬火态的样品中均存在ωath相。光学显微镜和FESEM结果显示,由于发生β→ω相变,淬火过程中形成的马氏体数量随着Mo含量的增加而降低。硬度的变化趋势也证实ωath相的存。Ti-6Mo-3Sn合金的形状记忆效应(SME)最高,为9%。合金SME较低是由于形成ωath相;然而,SME随着Mo含量的增加而增加,这是由于ωath相的逆相变和由压力引起的马氏体相变所致。另外,设计一种新的、非常简单的测量形状记忆效应的方法。 | Muhammad Luqman HASHMI Abdul WADOOD | 2020 | Transactions of Nonferrous Metals Society of China2020，30，3： | 8 |
| 2 | High-dose-rate intraluminal brachytherapy during preoperative chemoradiation for locally advanced rectal cancers显示文摘AIM:To determine the feasibility and safety of high dose rate intraluminal brachytherapy(HDR-ILBT) boost during preoperative chemoradiation for rectal cancer.METHODS:Between 2008 and 2009,thirty-six patients with locally advanced rectal cancer(≥ T3 or N+),were treated initially with concurrent capecitabine(825 mg/m2 oral twice daily) and pelvic external beam radiotherapy(EBRT)(45 Gy in 25 fractions),then were randomized to group A;HDR-ILBT group(n = 17) to receive 5.5-7 Gy×2 to gross tumor volume(GTV) and group B;EBRT group(n = 19) to receive 5.4 Gy×3 fractions to GTV with EBRT.All patients underwent total mesorectal excision.RESULTS:Grade 3 acute toxicities were registered in 12 patients(70.6%) in group A and in 8(42.1%) in group B.Complete pathologic response of T stage(ypT0) in group A was registered in 10 patients(58.8%) and in group B,3 patients(15.8%) had ypT0(P < 0.0001).Sphincter preservation was reported in 6/9 patients(66.7%) in group A and in 5/10 patients(50%) in group B(P < 0.01).Overall radiological response was 68.15% and 66.04% in Group A and B,respectively.During a median follow up of 18 mo,late grade 1 and 2 sequelae were registered in 3 patients(17.6%) and 4 patients(21.1%) in the groups A and B,respectively.CONCLUSION:HDR-ILBT was found to be effective dose escalation technique in preoperative chemoradiation for rectal cancers,with higher response rates,downstaging and with manageable acute toxicities. | Mutahir Ali Tunio Mansoor Rafi Altaf Hashmi Rehan Mohsin Abdul Qayyum Mujahid Hasan Amjad Sattar Muhammad Mubarak | 2010 | World Journal of Gastroenterology2010，16，35： | 3 |
| 3 | Whole-Pelvis or Bladder-Only Chemoradiation for Lymph Node–Negative Invasive Bladder Cancer: Single-Institution Experience显示文摘 | Mutahir A. Tunio Altaf Hashmi Abdul Qayyum Rehan Mohsin Ahmed Zaeem | 2012 | International Journal of Radiation Oncology Biology Physics2012，，3： | 1 |
| 4 | Post-operative visual outcomes based on morphological staging of idiopathic epiretinal membranes on OCT显示文摘AIM:To evaluate the recently described optical coherence tomography(OCT)based classification of epiretinal membrane(ERM)and its usefulness in predicting the functional outcome.METHODS:A retrospective observational review of OCT scans of patients with the diagnosis of idiopathic ERM was carried out from January 2016 to June 2021.All consecutive images diagnosed with any stage of idiopathic ERM and fulfilled the eligibility criteria were included in the analysis.ERM was identified on OCT scans as a thin hyperreflective layer over the inner layers of retina.OCT scans of patients with ERM who underwent vitrectomy,were independently staged as per the new classification by two independent retinal surgeons to form a consensus on stage.Best corrected visual acuity(BCVA)in logMAR scale and central subfield thickness(CST)on pre-and post-operative spectral domain OCT scans were the variables noted for all patients at the time of diagnosis and at 6 and 12 mo follow up visit after undergoing intervention.Partial correlation coefficient was computed between BCVA(logMAR)and CST by ERM stage adjusting by baseline measures.RESULTS:Clinical charts of 74 patients with idiopathic ERM were assessed.Clinically significant improvement in BCVA overtime was observed with significant difference in median visual acuity of patients with StageⅡ-ⅣERM with P<0.001.The median CST of all patients with stageⅡ-ⅣERM showed similar consistent improvement with P<0.001 from baseline to 12^(th)month.Our results showed not only gain in visual acuity but also shift from baseline to anatomical normalization of CST in stageⅡ.We found a decrease in CST with difference of 166μm and 151μm in stageⅢand stageⅣrespectively.Our results remained consistent with the hypothesis of improved visual outcomes with all stages of ERM with adjusted moderate linear correlation between visual acuity and CST in stageⅡ-Ⅳ(r>0.3).CONCLUSION:Equally significant visual outcomes of patients with ERM stagedⅡ-Ⅳand therefore can be counselled for improved visual acuity after surgical removal of ERM with improvement up to 5 lines on Snellen's chart from the baseline. | Sehrish Nizar Ali Momin Roha Ahmad Choudhary MARehman Siddiqui Shiraz Hashmi Abdul Sami Memon Haroon Tayyab | 2022 | International Journal of Ophthalmology(English edition)2022，15，12： | 1 |
| 5 | Intraparenchymal metastases to the spleen from ovarian cancer:a case report显示文摘 | Abdul A Ghani Zubair A Hashmi Daniel M Chase | 2010 | J Med Case Rep2010，4，30： | 1 |
| 6 | 内嵌树状流道的薄片结构流-热-力特性分析显示文摘内嵌树状流道的薄片结构在工程界和自然界中十分常见。文中首先以扇形薄片结构点-体流动问题为研究对象,建立了二维流道优化流体力学模型,得到了优化的树状流道,其最大流动压降小于同样流道体积的均匀流道结构,表明树状流道可以节省流动耗功;然后基于二维优化结果,建立了三维流-热-力仿真模型,模拟结果表明:在外加热流和力学负载相同时,与均匀流道相比,树状结构具有更低的最高温度和更小的最大变形,即具有更好的耐热性能和承载性能。 | Saadat Fatima Hashmi Abdul Rehman 朱磊磊 | 2021 | 能源研究与利用2021，，1： | 0 |
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