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A Post-Mastectomy Radiation Therapy Dose Distribution Study

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International Journal of Medical Physics, Clinical Engineering and Radiation Oncology 2017年第4期6卷 457-467页

作者： Xin Qian Kalpana vaidya Lindsay Puckett Ferney Diaz Xiaoli Tang Lucille Lee Eric Klein Department of Radiation Medicine Northwell Health New York NY USA MSKCC New York NY USA

Purpose: For post-mastectomy radiation therapy, skin dose must be accurately estimated to assess skin reactions, such as: erythema, desquamation, and necrosis. Even with advanced algorithms, planning systems do not always provide accurate dosimetry for target volumes distal to skin. Methods and Materials: In this study, a female anthropomorphic (ART) phantom and the newest generation of optically stimulated luminescence dosimeters (OSLD) (nanoDots, Landauer Inc.) were deployed to measure chest wall dose distribution. Since actual dose to patients’ lung and heart cannot be measured using in-vivo dosimetry, film was also used to verify the dose distribution to the left lung and heart. The treatment planning was performed using tolerance limits of 95% to 107% of prescription dose. The ART phantom was irradiated according to 3 three-dimensional (3D) conformal radiotherapy plans for 200 cGy dose per fraction using 6 MV medial and lateral tangential photon beams. The dose distribution provided by treatment planning was studied using nanoDots and film. Results: Results show that the largest surface dose difference between nanoDots measurement and prescribed dose for medial and lateral tangential beams, are 3.8% and 9.8%, respectively. This difference may be due to higher effective point of measurement and angular dependence of the nanoDots. The maximum differences in measured dose compared with prescribed dose, using film for heart and the left lung, were 6.2% and 7.5% respectively. Conclusions: Both nanoDots and film provided reasonable estimation of dose distribution in post-mastectomy radiation therapy.

关键词： Breast Radiotherapy Post-Mastectomy Chest-Wall Surface Dose OSLD NanoDot

Potential Use of Multipurpose <i>Paulownia elongata</i>Tree as an Animal Feed Resource

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American Journal of Plant Sciences 2018年第6期9卷 1212-1227页

作者： Whitley Marshay Stewart Brajesh Nanda vaidya Ajit Kumar Mahapatra Thomas Howard Terrill Nirmal Joshee Agricultural Research Station Fort Valley State University Fort Valley GA 31030 USA

Paulownia is known as an economically important multipurpose tree genus due to its fast growth and short-rotation harvesting for timber. There is interest in growing Paulownia species as a woody biofuel crop. There are reports on its leaves being rich in nitrogen and double as good fodder, as well as fertilizer (green manure). Nutritional properties of Paulownia elongata leaves collected at monthly intervals from Paulownia Demonstration Plot, Fort Valley State University (FVSU), Fort Valley, Georgia, USA, from April to November, 2011, were studied. The leaves were dried and analyzed for crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), fat, gross energy, and ash content. The CP, NDF, ADF, ADL, fat and ash content ranged from 14% - 23%, 29% - 55%, 18% - 42%, 10% - 22%, 2% - 4%, and 6% - 9%, respectively, indicating that Paulownia leaves have potential as a feed resource for livestock. Forage potential research was followed up by developing protocols to manufacture feed pellets with 75% and 95% leaf component and assessing their physical properties. There is an economic market potential for the by-products of Paulownia, which is usually grown for timber.

关键词： Feed Pellets Fodder Forage Analysis Nutritional Properties

A sensitive, rapid and validated liquid chromatography ? tandem mass spectrometry (LC-MS-MS) method for determination of Mimosine in Mimosa pudica Linn

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Natural Science 2010年第7期2卷 713-717页

作者： Parikshit A. Champanerkar Vikas V. vaidya Sunita Shailajan Sasikumar N. Menon 不详

A rapid, sensitive and accurate liquid chroma-tographic tandem mass spectrometric method is described for the determination of Mimosine in Mimosa pudica Linn. whole plant powder. Mi-mosine was extracted from the plant using 1.0% HCl in water. The chromatographic separation was achieved using a Thermo Hypurity C18 (50 x 4.6 mm) 5.0 μ column interfaced with a triple quadrapole mass spectrometer. The mobile phase consisted of a mixture of Methanol: 10 mM ammonium formate buffer whose pH was ad-justed to 3.00 ± 0.05 with formic acid (80:20, v/v) and was delivered at a flow rate of 1.0 mL min-1. Electrospray ionization (ESI) source operated in the negative ion mode was used for the quantitation. Detection was performed using an Applied Biosystems Sciex API 3200 Mass spec-trometer. The method was found to be simple, precise, accurate, fast, specific and sensitive and can be used for routine quality control analysis of Mimosine in Mimosa pudica Linn.

关键词： LC-MS-MS Mimosine Mimosa pudica Linn

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涤纶和尼纶长丝的高速纺丝

国外纺织技术(纺织分册) 1986年第7期 21-24页

作者： A.A.vaidya 张芝芬

引言纤维制造厂和机器制造厂在制造合成纤维所有各种工艺中,熔融纺丝法受到科研人员的最大关注。自从三种主要的商业性纺织纤维(即尼纶、涤纶和丙纶)采用这种方法作大量生产以来,自然更为人们所重视了。

关键词：尼纶卷绕机纤维伸长率力学性能高速纺丝机丝条卷绕速度聚对苯二甲酸乙二酯纤维涤纶

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时效硬化铝合金的空化腐蚀

轻合金加工技术 1981年第Z1期 62-69页

作者： S·vaidya 关学丰

前言金属由于空化而破坏的序列,随着金属的晶体结构、显微组织和变形方式不同而变化【1、2】.本文报导的内容,是为了了解这些因素所进行的大量系统研究中的第二部分在以前的文献【3】中,讨论了在蒸馏水中由于空化造成的纯面心立方金属... 详细信息

前言金属由于空化而破坏的序列,随着金属的晶体结构、显微组织和变形方式不同而变化【1、2】.本文报导的内容,是为了了解这些因素所进行的大量系统研究中的第二部分在以前的文献【3】中,讨论了在蒸馏水中由于空化造成的纯面心立方金属腐蚀和变形问题本文叙述了时效硬化铝合金的成分和热处理变化时对空化敏感性的影响.对三个合金系,即Al-Cu、Al-Mg、Al-Zn-Mg-Cu系进行了研究.Al、Cu合金可以快速析出,并且已证明该系合金的组织和静态机械强度与热处理有关【4】与此不同,

关键词：空化腐蚀细沟 Cu 犁沟时效硬化铝合金显微硬度蚀坑

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辩证审视人工智能生成的软件

科技纵览 2023年第7期 34-39,4页

作者： Jaideep vaidya Hafiz Asif Daniel Zender(插图) 不详

就许多方面而言,我们都生活在《黑客帝国》的世界里。假如主人公尼奥能帮我们拨开层层迷雾,我们便会发现代码无处不在。事实上,现代社会是在代码的基础上运行的:无论是在网上还是在商店里购物、在图书馆借书、开处方、报税、开车,你很... 详细信息

就许多方面而言,我们都生活在《黑客帝国》的世界里。假如主人公尼奥能帮我们拨开层层迷雾,我们便会发现代码无处不在。事实上,现代社会是在代码的基础上运行的:无论是在网上还是在商店里购物、在图书馆借书、开处方、报税、开车,你很可能都在与软件驱动的系统互动。

关键词：人工智能软件驱动《黑客帝国》图书馆辩证审视代码系统互动借书

A Review of <i>Paulownia</i>Biotechnology: A Short Rotation, Fast Growing Multipurpose Bioenergy Tree

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American Journal of Plant Sciences 2013年第11期4卷 2070-2082页

作者： Niraj Kumarmangalam Yadav Brajesh Nanda vaidya Kyle Henderson Jennifer Frost Lee Whitley Marshay Stewart Sadanand Arun Dhekney Nirmal Joshee 1Agricultural Research Station Fort Valley State University Fort Valley USA Agricultural Research Station Fort Valley State University Fort Valley USA Department of Plant Sciences University of Wyoming Sheridan Research & Extension Center Sheridan USA Wesleyan College Macon USA

Paulownia is a genus of fast-growing and multipurpose tree species that is native to China. Due to their rapid growth and value in the timber market, many Paulownia species are cultivated in several temperate zones worldwide. Economic importance of Paulownia is increasing as new uses and related products are developed. It is also suitable as a lignocellulosic feedstock crop for the bioethanol industry in the Southeastern USA. A number of Paulownia species are valuable sources of secondary metabolites including flavonoids with high antioxidant activities. A high demand for planting material in domestic and international markets for afforestation and bioenergy production has necessitated the development of efficient micropropagation protocols for rapid and mass propagation of Paulownia. Over the past several decades, research on Paulownia species has been conducted to develop micropropagation, somatic embryogenesis and genetic transformation protocols for use in agroforestry and reforestation programs. Given the economic importance and current and potential future uses of Paulownia, this paper reviews the development of biotechnological approaches for plant propagation and genetic improvement, and antioxidant potential of secondary metabolites occurring in species.

关键词： Micropropagation Biofuel Plant Growth Regulator Regeneration Somatic Embryogenesis Transformation Antioxidant Potential

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射线照相对比度的研究

无损检测 1988年第12期 371-373页

作者： P.R.vaidya 陈德安

引言射线照相法是一种重要的无损检测技术,通常采用透射光线对射线底片上的图象进行分析。最近Mar-dix试图对射线底片的对比度予以说明。这也可说是Altman成果的深化,他认为底片上乳剂层的对比度可用测定的黑度值来表达。Smith提出产生... 详细信息

引言射线照相法是一种重要的无损检测技术,通常采用透射光线对射线底片上的图象进行分析。最近Mar-dix试图对射线底片的对比度予以说明。这也可说是Altman成果的深化,他认为底片上乳剂层的对比度可用测定的黑度值来表达。Smith提出产生对比的原因是由于形成乳胶层的主要物质明胶的硬化或软化,已软化部分吸收的水份要比未软化部分少。Smith提出对比度的产生在于干燥过程中,由低光学密度

关键词：分界线空间梯度明胶分散剂黑度交界线底片

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热塑性复合材料在航空航天中的应用

航空制造技术 2015年第14期58卷 69-71页

作者： Uday vaidya 李进松管佳明伯明翰Alabama大学材料工艺与应用发展中心

热塑性复合材料在航空航天领域迅速发展,如航空和导弹防御中的应用。热塑性复合材料具有重量轻、高比模量和强度、设计自由度高、易加工和可回收的优点。本文介绍了伯明翰阿拉巴马大学(UAB)在航空航天用不连续或连续碳纤维热塑性复合材... 详细信息

热塑性复合材料在航空航天领域迅速发展,如航空和导弹防御中的应用。热塑性复合材料具有重量轻、高比模量和强度、设计自由度高、易加工和可回收的优点。本文介绍了伯明翰阿拉巴马大学(UAB)在航空航天用不连续或连续碳纤维热塑性复合材料最近的研究工作,包括电子产品外壳的复杂基板、配载门、罩片和结构承重构件。所使用的工艺包括挤压压缩、纤维注射、变截面板和真空成型,大大缩短了制备周期。

关键词：热塑性复合材料航空航天应用航天领域导弹防御电子产品承重构件真空成型

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