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蚕丝含量计算方法对光谱仪法测算扎丽纱包覆层金属元素含量的影响(英文)

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蚕业科学 2013年第6期39卷 1139-1144页

作者： KADHAR Mohammed Abdul GHOSH Malai Kumar basu arindam 蚕丝技术研究中心蚕丝检验与测试室印度康契普拉姆区631502 蚕丝中央委员会蚕丝技术研究中心印度班加罗尔市560068

纱丽服原料扎丽纱中的蚕丝与包覆层金属元素的质量比在18：82～28：72之间，可根据蚕丝含量估算各种金属元素的含量。为了以更为准确的扎丽纱蚕丝含量数据估算金属元素含量，首先采用X射线荧光（ED—XRF）光谱仪对37个扎丽纱样品的金属... 详细信息

纱丽服原料扎丽纱中的蚕丝与包覆层金属元素的质量比在18：82～28：72之间，可根据蚕丝含量估算各种金属元素的含量。为了以更为准确的扎丽纱蚕丝含量数据估算金属元素含量，首先采用X射线荧光（ED—XRF）光谱仪对37个扎丽纱样品的金属元素纯度进行检测，然后根据3组扎丽纱蚕丝含量数据——常规含量、569个样品的平均含量、37个样品的平均含量，将检测的金属元素纯度值换算成含量值，并将各组测算结果与采用化学分析法的检测结果进行比较。统计分析表明，根据569个和37个扎丽纱样品的蚕丝平均含量估算的银、铜元素含量比根据蚕丝常规含量估算获得的结果更加准确，而依据3组蚕丝含量数据分别估算的金元素含量与化学分析法检测结果的差异均达到极显著水平（P〈0．01）。

关键词：扎丽纱 X射线荧光光谱仪蚕丝金属元素含量

利用X射线荧光光谱仪检测蚕丝纱丽服扎丽纱包覆层中的金属元素含量(英文)

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蚕业科学 2013年第3期39卷 562-567页

作者： KADHAR Mohammed Abdul GHOSH Malai Kumar basu arindam 蚕丝技术研究中心蚕丝检验与测试室印度康契谱拉姆区631502 蚕丝中央委员会蚕丝技术研究中心印度班加罗尔市560068

扎丽纱(zari thread)是一种包裹了镀金的银-铜合金扁平金属线的精细染色蚕丝纱线。利用能量扩散X-射线荧光(ED-XRF)光谱仪(简称光谱仪)对扎丽纱进行无损分析,需要定期用扎丽纱的化学分析(破坏性的)数据进行校准。扎丽纱包覆层的金属成... 详细信息

扎丽纱(zari thread)是一种包裹了镀金的银-铜合金扁平金属线的精细染色蚕丝纱线。利用能量扩散X-射线荧光(ED-XRF)光谱仪(简称光谱仪)对扎丽纱进行无损分析,需要定期用扎丽纱的化学分析(破坏性的)数据进行校准。扎丽纱包覆层的金属成分不断改变以适应消费者的需求。为了准确校准光谱仪的数据,分别用化学分析法(质量法)和光谱仪对34个扎丽纱样品的金属包覆层进行测试。对扎丽纱金属包覆层的银、铜和金3种元素含量的测定数据进行统计分析的结果表明:用2种方法检测到的银和铜的含量均无显著差异;而金元素含量只有≥0.80%时,才适合用光谱仪检测,因为光谱仪所检测的只是金属包覆层的很小部分(50μm×50μm)。由于扎丽纱银-铜合金扁平金属线是镀金的,其中的金元素含量取决于电镀工艺条件,如单位时间电源电压变化、合金每秒所暴露的面积、溶液中金离子的浓度等。

关键词：扎丽纱 X-射线荧光光谱仪金属元素

一种根据加捻生丝测试数据计算原料生丝纤度和纤度偏差的方法(英文)

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蚕业科学 2013年第4期39卷 751-755页

为了评定用于加捻的原料生丝的品质,需要对多项丝质性状指标进行检测,其中纤度和纤度偏差是2项重要的指标,对加捻生丝的性能和结构有影响。通过分析比较原料生丝及加捻生丝的纤度和纤度偏差,建立了一种根据加捻生丝的纤度与纤度偏差测... 详细信息

为了评定用于加捻的原料生丝的品质,需要对多项丝质性状指标进行检测,其中纤度和纤度偏差是2项重要的指标,对加捻生丝的性能和结构有影响。通过分析比较原料生丝及加捻生丝的纤度和纤度偏差,建立了一种根据加捻生丝的纤度与纤度偏差测试结果计算原料生丝的纤度和纤度偏差的方法。应用该方法计算得到的原料生丝的纤度和纤度偏差值与实测值无显著性差异,证明了该方法测算结果的可靠性。

关键词：加捻生丝原料生丝纤度纤度偏差显著性检验

印度泰米尔纳德邦二化性与多化性家蚕品种的蚕茧缫折影响因素分析(英文)

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蚕业科学 2014年第2期40卷 358-362页

作者： KADHAR Mohammed Abdul MAHESH Madigal Gurulingappa RAMESHBABU Vijay Krishna GHOSH Malai Kumar basu arindam 蚕丝技术研究中心蚕丝检验与测试室印度康契普拉姆区631502 蚕丝中央委员会蚕茧测试中心印度达尔马布里孔巴托市641018 蚕丝中央委员会蚕丝技术研究中心印度班加罗尔市560068

印度泰米尔纳德邦蚕区饲养二化性和多化性家蚕品种。依据该地区蚕茧市场蚕茧检测中心2006—2010年对蚕茧缫折及相关指标的测试数据进行统计分析,比较影响二化性品种和多化性品种蚕茧缫折的主要因素。统计分析显示,多化性家蚕品种蚕茧的... 详细信息

印度泰米尔纳德邦蚕区饲养二化性和多化性家蚕品种。依据该地区蚕茧市场蚕茧检测中心2006—2010年对蚕茧缫折及相关指标的测试数据进行统计分析,比较影响二化性品种和多化性品种蚕茧缫折的主要因素。统计分析显示,多化性家蚕品种蚕茧的缫折较高,主要是受次茧率的显著影响;尽管近年来二化性家蚕品种的次茧率也明显增加,但高次茧率对其缫折的影响并不显著,这是因为对缫折有明显影响的茧层率在过去的5年里得到显著提高。结果提示,泰米尔纳德邦饲养的二化性家蚕品种具有高茧层率和低缫折的优势。

关键词：家蚕二化性多化性缫折次茧率茧层率

A time-domain nonlinear effective-stress non-Masing approach of ground response analysis of Guwahati city, India

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Earthquake Engineering and Engineering Vibration 2019年第1期18卷 61-75页

作者： Devdeep basu Madhulatha Boga arindam Dey Department of Civil Engineering Indian Institute of Technology Guwahati

The response of subsoil strata subjected to seismic excitations plays an important role in governing the response of the overlying superstructures at any site. Ground response analysis(GRA) helps to assess the influence of soil characteristics on the propagating seismic stress waves from the bedrock level to the ground surface during an earthquake. For the northeastern region of India, located in the highest seismic zone in the country, conducting an extensive GRA study is of prime importance. Conventionally, most of the GRA studies are carried out using the equivalent linear method, which, being a simplistic approach, cannot capture the nonlinear behavior of soil during seismic shaking. This paper presents the outcomes of a one-dimensional effective stress based nonlinear GRA conducted for Guwahati city(located in northeast India) incorporating the non-Masing load/unload/reload characteristics. The various ground response parameters evaluated from this study help in assessing the ground shaking, soil amplification, and site responses expected in this region. 2D contour maps, which are representative of the distribution of some of these parameters throughout Guwahati city, are also developed. The results presented herein can serve as guidelines for the design of foundations and superstructures in this region.

关键词： ground response analysis nonlinear effective stress approach non-masing criteria ground response parameters soil amplification

Role of Neo-Adjuvant Chemotherapy in the Treatment of Osteosarcoma

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Open Journal of Orthopedics 2012年第2期2卷 25-29页

作者： Ranadeb Bandyopadhyay arindam Mukherjee Bishan basu Department of Orthopaedics Bankura Sammilani Medical College Bankura India Department of Radiotherapy Bankura Sammilani Medical College Bankura India

Osteosarcoma is a tumour characterized by the production of osteoid by malignant cells. The incidence is approximately 1 to 3 million/year. The incidence is slightly higher in males. Onset can occur at any age;however, primary high grade osteosarcoma usually occurs in the second decade of life. Historically patients with osteosarcoma were treated with immediate wide or radical amputation. Despite the treatment, 80% patients with apparently isolated disease died of distant metastases. In recent years the number of patients with osteosarcoma of the limb treated by amputation + chemotherapy has increased. In our study, we divided the patients into two groups. One group (A) was treated with amputation + adjuvant chemotherapy. The other group (B) was treated with neo-adjuvant chemotherapy + amputation followed by adjuvant-chemotherapy. In our study, the margin negativity in post surgical specimen was significantly higher (P-value 0.0007) for the group treated with neo-adjuvant chemotherapy. Local recurrence in the group treated without neoadjuvant chemotherapy was significantly more (P-value 0.0005).The systemic recurrence at the end of 6 months was higher the group treated without neoadjuvant chemotherapy (P-value 0.0169).However systemic recurrence between 6 months -1 year and 1 year - 2 years were not significant(P-values 0.1501 and 0.4902). From the above figures it may be concluded that treatment with neo-adjuvant chemotherapy + amputation + adjuvant chemotherapy had definite advantages over upfront amputation + adjuvant chemotherapy.)

关键词： Osteosarcoma Amputation Neo-Adjuvant Chemotherapy Adjuvant Chemotherapy