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新型炭材料(中英文) 2024年

作者： Sahil Rana Amit Kumar Wang Tong-tong Gaurav Sharma pooja Dhiman Alberto García-Penas International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS) Shoolini University Interdisciplinary and Innovate Research Xi'an University of Architecture and Technology Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química (IAAB) Universidad Carlos III de Madrid

Carbonaceous materials including carbon nanotubes/nanofibers, graphene, graphene oxide, reduced graphene oxide,graphyne, graphdiyne, carbon quantum dots and fullerenes have gained considerable attention in the recent years for their unique properties such as high conductivity, excellent stability and biocompatibility. The integration of these carbonaceous materials into Zscheme and S-scheme heterojunctions has emerged as a transformative strategy to enhance the photocatalytic efficiency for energy conversion applications. This review delves into the fundamental principles of clean energy generation such as photocatalytic H2generation and CO2reduction, elucidating their respective mechanisms and advantages. Furthermore, various types of carbonaceous materials, their synthesis and construction of Z-scheme and S-scheme heterojunctions are discussed emphasizing their role in promoting charge separation, reducing recombination losses and extending the spectral response range. With the focus on solar fuel production,the recent advancements in carbonaceous based Z-scheme and S-scheme heterojunctions are discussed and summarized for photocatalytic H2generation and CO2reduction. Lastly, the current bottlenecks and challenges in the field of carbonaceous based photocatalysts are discussed with the valuable insights for future development in this particular field.

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石墨炔:一种用于合成水污染物有效吸附剂的新型炭材料

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新型炭材料（中英文） 2024年第2期39卷 173-200页

作者： Gaurav Sharma Yaksha Verma Amit Kumar pooja Dhiman WANG Tong-tong Florian JStadler 深圳大学材料科学与工程学院深圳市高分子科学与技术重点实验室广东省功能材料界面工程研究中心南山区生物高分子与安全性评价重点实验室广东深圳518055 International Research Centre of Nanotechnology for Himalayan Sustainability(IRCNHS) Shoolini UniversityHimachal Pradesh 173229India 西安建筑科技大学跨学科与创新研究院陕西西安710055

石墨炔(GDY)是一种新生的二维材料,其在去除水溶液中污染物的研究方面引起了广泛关注。GDY是sp和sp2杂化碳原子的框架,其在二维对称网络中存在苯环和二乙基键,因此具有优异的共轭性、独特的可调谐电子性能、以及优异的化学和热稳定性。... 详细信息

石墨炔(GDY)是一种新生的二维材料,其在去除水溶液中污染物的研究方面引起了广泛关注。GDY是sp和sp2杂化碳原子的框架,其在二维对称网络中存在苯环和二乙基键,因此具有优异的共轭性、独特的可调谐电子性能、以及优异的化学和热稳定性。GDY的分子中有C≡C键,且具有均匀分布的三角形孔,可提供更多的反应位点和多种反应路径。因而,GDY具有吸附性,其作为吸附剂时在去除污染水中的油、有机污染物、染料和金属方面表现优异。在已发表的文献中,GDY被用作吸附剂的报道十分有限。本文综述了GDY的合成方法、GDY作为吸附剂的应用以及GDY基吸附剂的表征,并展望了GDY在污染物修复中的应用前景。

关键词：石墨炔合成吸附污染物合理机制

Effect of Non-Homogeneity on Thermally Induced Vibration of Orthotropic Visco-Elastic Rectangular Plate of Linearly Varying Thickness

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Applied Mathematics 2010年第4期1卷 326-333页

作者： Arun Kumar Gupta pooja Singhal 不详

The analysis presented here is to study the effect of non-homogeneity on thermally induced vibration of orthotropic visco-elastic rectangular plate of linearly varying thickness. Thermal vibrational behavior of non-homogeneous rectangular plates of variable thickness having clamped boundary conditions on all the four edges is studied. For non–homogeneity of the plate material, density is assumed to vary linearly in one direction. Using the method of separation of variables, the governing differential equation is solved. An approximate but quite convenient frequency equation is derived by using Rayleigh-Ritz technique with a two-term deflection function. Time period and deflection at different points for the first two modes of vibration are calculated for various values of temperature gradients, non- homogeneity constant, taper constant and aspect ratio. Comparison studies have been carried out with non-homogeneous visco-elastic rectangular plate to establish the accuracy and versatility.

关键词： Non-Homogeneous Orthotropic Visco-Elastic Variable Thickness Rectangular Plate Vibration Thermal Gradient

Thermal Effect on Free Vibration of Non-Homogeneous Orthotropic Visco-Elastic Rectangular Plate of Parabolically Varying Thickness

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Applied Mathematics 2010年第6期1卷 456-463页

作者： Arun Kumar Gupta pooja Singhal 不详

A simple model presented here is to study the thermal effect on vibration of non-homogeneous orthotropic visco-elastic rectangular plate of parabolically varying thickness having clamped boundary conditions on all the four edges. For non-homogeneity of the plate material, density is assumed to vary linearly in one direction. Using the separation of variables method, the governing differential equation has been solved for vibration of non-homogeneous orthotropic viscoelastic rectangular plate. An approximate frequency equation is derived by using Rayleigh-Ritz technique with a two-term deflection function. Results are calculated for time period and deflection at different points, for the first two modes of vibration, for various values of temperature gradients, non-homogeneity constant, taper constant and aspect ratio and shown by graphs.

关键词： Thermal Gradient Vibration Non-Homogeneous Orthotropic Visco-Elastic Rectangular Plate Variable Thickness

Effect of Helicobacter pylori-eradication therapy on hepatic steatosis in patients with non-alcoholic fatty liver disease:a randomized–controlled pilot study

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Gastroenterology Report 2020年第2期8卷 104-110,I0001,I0002页

作者： Vikas Maharshi pooja Gupta Vijay L.Kumar Ashish Datt Upadhyay Prasenjit Das Rajni Yadav Baibaswata Nayak Ramesh Kumar Shalimar Department of Pharmacology All India Institute of Medical SciencesNew DelhiIndia Department of Biostatistics All India Institute of Medical SciencesNew DelhiIndia Department of Pathology All India Institute of Medical SciencesNew DelhiIndia Department of Gastroenterology All India Institute of Medical SciencesNew DelhiIndia

Background:Helicobacter pylori infection has been associated with insulin resistance and non-alcoholic fatty liver disease(NAFLD).This study was done to evaluate the effect of ***-eradication therapy(HPET)in patients with NAFLD compared to standard management therapy(SMT).Methods:Eighty NAFLD patients with *** co-infection were randomized into SMT(diet and exercise,n=36)and HPET(SMT plus amoxicillin,clarithromycin,and pantoprazole,n=44)*** controlled attenuation parameter(CAP),anthropometric parameters,liver enzymes,lipid profile,and glycemic parameters including homeostasis model assessment-insulin resistance(HOMA-IR)were measured and compared between two groups at the baseline and 24 ***:Sixty-four participants(SMT group[n=28]and HPET group[n=36])were included in amodified intention-to-treat *** the SMT group and the HPET group had a significant reduction in CAP scores at 24weeks(P=0.002 and P<0.001,respectively),but the change between the groups was insignificant(P=0.213).Successful eradication of *** occurred in 68%of the HPET group and led to greater improvement in HOMA-IR at 24weeks compared to SMT or non-responder patients(P=0.007).The liver enzymes reduced significantly at 24weeks in both groups,but the changes between the groups were *** lipid parameters remained unchanged within the groups and between the groups at 24weeks.A significant increase in the levels of reduced glutathione was noted in the HPET group,but the change between the two groups was not statistically ***:HPET was found to be comparable to SMT alone in reducing hepatic steatosis and liver enzymes at 24 weeks in NAFLD ***,successful eradication of *** led to greater improvement in HOMA-IR(Trial registration CTRI/2017/05/008608).

关键词： non-alcoholic fatty liver disease H.pylori infection H.pylori-eradication therapy controlled attenuation parameter insulin resistance

碳基材料的Z型和S型异质结光催化清洁能源综述

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新型炭材料（中英文） 2024年第3期39卷 458-482页

作者： Sahil Rana Amit Kumar WANG Tong-tong Gaurav Sharma pooja Dhiman Alberto García-Penas International Research Centre of Nanotechnology for Himalayan Sustainability(IRCNHS) Shoolini UniversitySolan173229India 西安建筑科技大学交叉创新研究院西安710055 Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química(IAAB) Universidad Carlos Ⅲ de MadridLegan'es28911Spain

碳纳米管/纳米纤维、石墨烯、氧化石墨烯、还原氧化石墨烯、石墨炔、碳量子点和富勒烯等炭材料因具有高导电性、优异的稳定性和生物相容性等独特性能,近年来受到广泛关注。在炭材料中构建Z型和S型异质结已成为在能量转换应用中提高光催... 详细信息

碳纳米管/纳米纤维、石墨烯、氧化石墨烯、还原氧化石墨烯、石墨炔、碳量子点和富勒烯等炭材料因具有高导电性、优异的稳定性和生物相容性等独特性能,近年来受到广泛关注。在炭材料中构建Z型和S型异质结已成为在能量转换应用中提高光催化效率的一种有效策略。本文综述了光催化制氢和CO_(2)还原等清洁能源的基本原理,阐述了它们各自的机理和优势。此外,还讨论了不同类型的炭材料以及其中Z型和S型异质结的合成和构建,强调了它们在促进电荷分离、减少光生载流子复合损失和扩大光谱响应范围方面的作用。以太阳能燃料生产为重点,讨论和总结了碳基Z型和S型异质结在光催化制氢和还原CO_(2)方面的最新进展。最后,讨论了目前碳基光催化剂领域的瓶颈和挑战,并对该领域的未来发展提出了有价值的见解。

关键词：炭材料异质结 Z型 S型光催化氢能材料

Navigating emotional challenges:A journey with patients undergoing chemotherapy

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World Journal of Clinical Oncology 2024年第9期15卷 1132-1135页

作者： Nisha Mani Pandey pooja Ramakant Department of Geriatric Mental Health King George's Medical UniversityLucknow 226003India Department of Endocrine Surgery King Georges Medical UniversityLucknow 226003India

A recent article reported that cancer patients with subthreshold depression are more likely to develop major depression within a *** regression analysis revealed that regular exercise was a protective factor against cancerrelated fatigue,whereas advanced age,radiotherapy,pain,and low hemoglobin were risk factors for cancer-related fatigue.A limitation of this study was the lack of methodological details about leukemia patients receiving depressive treatment at a specific *** assessment,behavioral modification plans,communication,destressing techniques,and educational plans may help chemotherapy patients manage emotional issues and reduce ***,these strategies can inspire patients to create,facilitate their treatment,and help them to remain healthy.

关键词： Leukemia patients Cancer patients Emotional distress Subthreshold depression Chemotherapy

Absence of albuminuria in type 2 diabetics with classical diabetic nephropathy: Clinical pathological study

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Journal of Biomedical Science and Engineering 2013年第5期6卷 20-25页

作者： pooja Budhiraja Bijin Thajudeen Mordecai Popovtzer Department of Medicine Southern Arizona Veterans Affairs Health Care System Tucson USA Department of Medicine University of Arizona College of Medicine Tucson USA

Background: Diabetic nephropathy is the most common cause of chronic kidney disease and the number afflicted patients continues to rise. The presence of proteinuria has been considered as a prerequisite for the diagnosis of diabetic nephropathy. But one third to one half of type 2 diabetics with CKD have no proteinuria and the pathology of non proteinuric CKD in this group remains unclear as renal biopsy is commonly not performed in these patients. The present study addresses the question: Can a classical diabetic nephropathy occur in the absence of proteinuria? Method: We examined renal biopsies of subjects who underwent nephrectomy from 1999 to 2009 for renal cancer, had eGFR < 60 ml/min and no microalbuminuria or proteinuria. 10 diabetics were matched with 10 non diabetics for age, hypertension and baseline creatinine. Results: The diabetic subjects had advanced diabetic lesions even in absence of proteinuria. Tubules and tubular-interstitium was relatively well preserved. Diabetic glomerulosclerosis can occur in the absence of microalbuminuria. Conclusions: It is becoming increasingly apparent that a considerable proportion of subjects with type 2 diabetes can develop renal impairment in the absence of albuminuria. Diabetic glomerulosclerosis may develop before the proteinuria can be detected and relying on albumin excretion as first sign for renal involvement may be too late in diagnosing and modifying the progression of the kidney disease.

关键词： Kimmelstiel-Wilson Lesions Diabetes Mellitus Nephropathy Albuminuria

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颅咽管瘤患者手术前后激素变化经验分析

颅咽管瘤患者手术前后激素变化经验分析

作者： pooja Lama 天津医科大学

学位级别：硕士

在本论文的简要概述本组患者的年龄、性别分布、复发模式和激素变化,以往的报道侧重于患者症状而忽视它的实际比率,我们的研究更注重患者激素波动和内分泌疾病。尽管组织学低度恶性,长期随访和并发症的处理具有挑战性。临床症状包括肿... 详细信息

在本论文的简要概述本组患者的年龄、性别分布、复发模式和激素变化,以往的报道侧重于患者症状而忽视它的实际比率,我们的研究更注重患者激素波动和内分泌疾病。尽管组织学低度恶性,长期随访和并发症的处理具有挑战性。临床症状包括肿瘤在鞍旁生长导致继发于颅内压增高,脑积水,或压迫中枢神经系统的重要结构,引起头痛,恶心,视力模糊,以及多尿和烦渴。它是众所周知,颅咽管瘤通常导致内分泌异常由于其起源部位同下丘脑之间关系密切。由于肿瘤对下丘脑结构的破坏及各种内分泌失常的治疗反过来对患者的生活质量产生影响。大多数患者(85-95%)遭受多种下丘脑-垂体功能缺陷,包括完成垂体功能不全,而术前缺乏激素全面恢复只发生在极少数情况下,生长激素替代疗法是治疗生长激素缺乏一个被证实的有效、安全的治疗方案。然而,肿瘤对下丘脑结构的破坏和或其治疗的紊乱被认为是贪食和肥胖主要的致病原因,下丘脑损伤程度和后遗症由影像学评估。无论初始手术治疗与手术和／或放射治疗,在随访的过程中内分泌及代谢紊乱更加明显。而术前缺乏激素全面恢复只发生在极少数情况下。通过单变量分析,神经、血管和视觉并发症和患者术后内分泌病变相关,而和患者年龄关系不明显。因此,为了减少内分泌对患者的影响,我们对患者的内分泌情况进行研究。目的 ·分析术前和术后颅咽管瘤患者垂体前叶激素的变化。 ·观察平均年龄,性别比例,甲状腺功能减退症在研究样本中的频率。 ·要查看哪些激素对术后患者的整体内分泌不足的比例最大,并帮助采取必要的措施,在未来患者进一步管理中以尽量减少其影响。 ·检讨生长激素在成人颅咽管瘤病人在我们的研究结果。方法和材料 (一)研究人群/纳入标准：年龄>18年手术类型：肿瘤整体全切除手术。手术方式：额外侧入路单人操作,以减少外科医生的手术技术偏见。 (二)研究设计：在环湖医院2008至2013年手术治疗的34例成人患者的病历资料进行回顾性研究。学习的参考值是按照环湖医院实验室。 T3:1.3-3.1nmol/L T4:66-181nmol/L TSH:0.27-4.2UIU/毫升 GH：0.06-5.0纳克/毫升 PRL：2.5-17纳克/毫升 LH:0.8-7.6MIU/毫升 ADH：2.2-14皮克/毫升促肾上腺皮质激素：0-46皮克/毫升 COR：5-25微克/分升 FSH:0.7-11.7mIU/L 数据采用统计软件包社会科学(SPSS软件版本17.0)进行统计学分析。使用非参数2依赖性样品测试(Wilcoxon符号秩检验)统计显着性进行了评估。数据以0.05为检验标准。结果 1.平均年龄及病人的标准偏差纳入本研究分别为(47.11±1.2)岁,平均50岁。 2.女性与男性的比例,在我们的研究为1：1.3 3.甲状腺激素的手术前和手术后激素状态如下：手术前T3,T4, TSH的血浆平均水平分别为2.41nmol/L,48.99nmol/L,2.05uIU/ml,术后***分别为1.73nmol/L,23.47nmol/L和0.16UIU/ml。 4.有其他垂体前叶激素水平如下：手术前后LH血浆平均水平分别为3.35MIU/ml和1.78MIU/ml时,泌乳素分别为24.04ng/mL和18.59ng/ml,促肾上腺皮质激素和生长激素均为是0.372ng/ml和0.34ng/ml,肾上腺皮质激素分别为15.81微克／分升和8.30微克／毫升,FSH分别为是8.94MIU/L和4.87MIU/***手术前后的平均血浆值有显著差异,PRL手术前后激素平均值的差异不明显。讨论：手术前内分泌疾病常见于颅咽管瘤患者。临床特征可能不是很明显,细致的手术前的内分泌评估是必不可少的。未能认识到并解决手术前尿崩症和继受任何手术治疗后会使内分泌功能障碍进一步恶化。研究显示,激素功能障碍的下降趋势。预言这个趋势可以很容易,但要知道激素的模式也是必不可少的。不是所有的激素均往下掉。我们研究了单个激素,得到了各激素的术前和术后的比例。甲状腺功能和促甲状腺激素：我们对甲状腺激素的研究和以往文献尽管有所不同;甲状腺功能减退症总体发生率在手术前后分别为61%和73.5%(P<0.01)。Honegger等人报道,甲状腺功能减退症手术前后的发病率分别为24.5%和38.5%,均较我们的研究要低得多。其结果是基于T3和T4手术后三个月的测量,但我们的结果是根据手术后一周测量。两项研究之间的时间间隔可能有助于解释他们的区别。另一项研究中甲状腺功能减退症在手术前后的发病率分别70%和95%,较我们的研究高,这项研究表明,甲状腺素应全部切除颅咽管瘤术后常规服用。我们的结果发现TSH是最常见的激素缺乏类型,LH激素缺乏紧随其后。甲状腺激素是最常见的激素功

关键词：颅咽管瘤激素手术治疗

Impact of Workspace Design in Indian Context on Occupant＇s Behavior, to Enhance Efficiency and Comfort

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Journal of Civil Engineering and Architecture 2013年第3期7卷 310-322页

作者： pooja Mukund Pathak Alpana Rajendra Dongre Department of Architecture and Planning Visvesvaraya National Institute of Technology Nagpur 440015 India

The environmental psychology ofa workspace is a rich and diverse field of study that is growing fast and gaining popularity. The indoor environmental factors in workspaces should follow functional as well as behavioral requirements as the spaces are designed as per the user＇s requirements, needs and aspirations. These play a major role in achieving behavioral impact on the user, as sense of well-being in the environment and physical comfort in the space enhances the productivity and efficiency of the user of the space. The slow and gradual importance of this issue in workspace design with Indian context, post occupancy evaluation can be adjudged as a permanent tool for improving indoor environment in buildings. Occupants should be used as a benchmark of evaluation, showing correlation of physical measurements and subjective parameters. It also suggests recommendations to improve quality of indoor environment in office buildings with analytical study, an important step in post occupancy evaluation. The objective of the paper is to inquire how people experience environmental psychology of the workspace as the determinants are efficiency, productivity and comfort. The success of any design depends upon the degree to which it creates an interface between the user and the environment.

关键词： Workspace physical measurements behavioral parameters efficiency comfort quantity quality