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2016年全国压电和声波理论及器件应用研讨会

作者： Mohanraj SOUNDARA PANDIAN Eloi MARIGO FERRER wee song TAY Venkatesh MADHAVEN Arjun Kumar KANTIMAHANTI SilTerra Malaysia Sdn Bhd

Background, Motivation and Objective Thin film Surface Acoustic Wave resonator(TFSAW) and Thin film Bulk Acoustic Wave resonator(FBAR) devices are continuously explored for various applications like oscillators, filters, low noise amplifiers, sensors and transducers. These applications involve the assembly of piezoelectric devices with the ASIC devices(Application-Specific-Integrated-circuits). ASIC devices are fabricated using CMOS technology(Complementary Metal-Oxide-Semiconductor) technology. Focused material research and engineering activities have been carried out to form thin film piezoelectric devices with CMOS compatible material and fabrication techniques. Motivated by the high market demand for miniaturization and systems with multitude functionality, researchers started to integrate the piezoelectric devices with ASIC devices on a single CMOS substrate. However direct integration of piezoelectric devices on CMOS substrate faces challenges in the process integration and device performance. In this paper we present the demonstrated results on the integrated TFSAW resonance designed to be at 300 MHz with an amplifier fabricated using "Sil Terra MEMS on CMOS" process platform. The same process platform has been extended for the bulk acoustic mode resonator with a vacuum sealed thin film encapsulation. The thin film encapsulated FBAR device resonance is designed to be at 4.6 GHz. Statement of Contribution/Methods The fabricated TFSAW device is shown in Figure(1), Aluminum Nitride(Al N) thin film is used as a piezoelectric layer. The Al N(002) thin film is deposited using physical vapor deposition process and the achieved crystal orientation is 1.4°. The ASIC and Interdigital transducers(IDT) are fabricated using the Sil Terra CMOS 0.18μm technology. In Figure(1) the ASIC portion is shown in the left side which consists of amplifier and buffer circuit and the TFSAW is shown in the right side of the image. We have also demonstrated the FBAR devices with a thin f

关键词： Thin film Surface Acoustic wave resonator Thin film Bulk Acoustic wave resonator Integrated piezoelectric devices Aluminum Nitride

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渐进性抗阻训练对痉挛型脑性瘫痪儿童活动和参与能力的影响

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中国中西医结合儿科学 2024年第4期16卷 277-280页

作者：宋凡旭赵宏博庞伟佳木斯大学康复医学院/佳木斯大学附属第三医院脑瘫康复科黑龙江佳木斯154002

目的在国际功能、残疾和健康分类(儿童青少年版)(ICF-CY)层面下,探讨渐进性抗阻训练对脑性瘫痪(简称脑瘫)儿童活动和参与能力的影响,为提高脑瘫儿童临床治疗效果提供依据。方法研究对象为2021年1~12月在佳木斯大学附属第三医院收治的痉... 详细信息

目的在国际功能、残疾和健康分类(儿童青少年版)(ICF-CY)层面下,探讨渐进性抗阻训练对脑性瘫痪(简称脑瘫)儿童活动和参与能力的影响,为提高脑瘫儿童临床治疗效果提供依据。方法研究对象为2021年1~12月在佳木斯大学附属第三医院收治的痉挛型双瘫脑瘫儿童40例,随机分为对照组和观察组各20例。对照组接受常规康复训练,观察组接受渐进性抗阻训练和常规康复训练,每组均治疗3个月。治疗前后分别给予儿童功能独立性评定量表(wee-FIM)、中文版残疾儿童能力评定量表(PEDI)、日常生活活动能力评定量表(ADL)、活动的游戏性检查表(TOP)评定,评估两组儿童活动和参与能力。结果观察组治疗后wee-FIM、PEDI、ADL和TOP评分均高于对照组,差异有统计学意义(P<0.05)。结论渐进性抗阻训练可有效改善痉挛型双瘫脑瘫儿童的活动和参与能力。

关键词：脑性瘫痪渐进性抗阻训练活动参与儿童

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基于Bootstrap方法的岩土体参数联合分布模型识别

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岩土力学 2015年第4期36卷 913-922页

作者：唐小松李典庆周创兵方国光武汉大学水资源与水电工程科学国家重点实验室湖北武汉430072 武汉大学水工岩石力学教育部重点实验室湖北武汉430072

小样本容量岩土体参数最优联合概率分布模型的识别是一个富有挑战性的问题。基于Bootstrap提出了小样本容量岩土体参数最优边缘分布函数和最优Copula函数识别方法。简要介绍了岩土体参数联合概率分布函数构造的Copula方法,采用AIC准则... 详细信息

小样本容量岩土体参数最优联合概率分布模型的识别是一个富有挑战性的问题。基于Bootstrap提出了小样本容量岩土体参数最优边缘分布函数和最优Copula函数识别方法。简要介绍了岩土体参数联合概率分布函数构造的Copula方法,采用AIC准则识别最优的边缘分布函数和Copula函数。将识别结果表示为不同备选边缘分布函数和Copula函数为最优边缘分布和最优Copula的权重系数集合,以基桩荷载-位移双曲线参数试验数据为例证明了所提方法的有效性。结果表明:基于小样本容量岩土体参数试验数据估计的样本均值、标准差和相关系数具有较大的离散性,这种离散性进一步导致了统计量AIC值存在较大变异性。提出的基于Bootstrap的最优边缘分布函数和最优Copula函数识别方法不仅可以有效地考虑统计量AIC值的变异性,而且能够综合地反映不同备选边缘分布函数和Copula函数为最优边缘分布和最优Copula函数的概率,为小样本容量岩土体参数最优边缘分布函数和最优Copula函数的识别提供了一条有效的途径。

关键词：岩土体参数相关性 Bootstrap方法联合概率分布边缘分布 Copula函数

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基于Copula函数的基桩荷载-位移双曲线概率分析

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岩土力学 2012年第1期33卷 171-178页

作者：唐小松李典庆周创兵方国光武汉大学水资源与水电工程科学国家重点实验室武汉430072 武汉大学水工岩石力学教育部重点实验室武汉430072 新加坡国立大学土木与环境工程系新加坡117576

提出了基于Copula函数的基桩荷载-位移双曲线概率分析方法。首先将基桩标准化荷载-位移双曲线模型不确定性转化为双曲线参数不确定性,然后在Copula理论框架下建立了双曲线参数的联合分布函数。最后以钻孔现浇灌注桩试验数据为例证明了... 详细信息

提出了基于Copula函数的基桩荷载-位移双曲线概率分析方法。首先将基桩标准化荷载-位移双曲线模型不确定性转化为双曲线参数不确定性,然后在Copula理论框架下建立了双曲线参数的联合分布函数。最后以钻孔现浇灌注桩试验数据为例证明了所提方法的有效性,并进行了基桩正常使用极限状态可靠度分析。结果表明:Copula函数是构造基桩标准化荷载-位移双曲线参数联合分布函数一种有效的方法,它能够更加准确地实现基桩荷载-位移双曲线的随机模拟,从而得到更为合理的可靠度结果。钻孔现浇灌注桩双曲线模型中两个参数间具有较强的负相关关系,忽略了这种负相关性将会高估基桩的失效概率。此外,常用的Gaussian Copula函数并不是拟合双曲线模型中两个参数间相关结构最优的Copula函数,采用Gaussian Copula函数将会明显低估基桩的失效概率。

关键词：基桩荷载-位移曲线相关性联合分布函数 Copula 失效概率

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Sustainabilty of Rice Processing in Rural Sub-Saharan Africa

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Journal of Agricultural Science and Technology(B) 2012年第9期2卷 1044-1050页

作者： Mohammed Bakari Michael Ngadi Robert kok Vijaya Raghavan Department of Bioresource Engineering McGill University Ste-Anne-de-Bellevue Quebec Canada

Energy and environmental sustainability are important considerations for increased rice production. This study examined the energy utilization and sustainability of rice processing in sub-Saharan Africa. The community of Gadan Loko village in the song local government of Adamawa State, Nigeria was selected as the focus of study. Rice parboiling, the most energy intensive process in rice processing is carried out usually by women in small quantities of about 13.2 kg using traditional pots on tripod support stoves. The parboiled rice is sun dried on mats before it is taken to the milling stalls where it is milled using milling machines driven by single cylinder diesel engines. There were large variations in the quality of milled rice due to lack of consistency in processing parameters. Accumulation of rice husk in the community created important environmental issues. In this study, methods of improving sustainability of rice processing were investigated. The areas included： the utilization of waste heat from the diesel engines for improved drying and efficient pre-soaking; the utilization of solar energy for pre-soaking; the utilization of rice husks as alternative fuel to firewood; and the optimization and redesign of the stoves and parboiling vessels to minimize heat loss to the environment. The results showed that the utilization of rice husk as alternative fuel and the redesign of the stoves and parboiling vessels will increase the sustainability of rice processing and can be easily adopted by the community. While solar energy pre-soaking was not economical and the utilization of waste heat from the diesel engines for drying and pre-soaking would be difficult to implement at the rural scale, because most of the parboiling is done far away from the milling stalls. The study showed that research, development of appropriate technology, and education （RATE） of the rural community is an important way of increasing sustainability.

关键词： Rice processing parboiling alternative energy heat recovery rice paddy solar presoaking research appropriate technology and education (RATE).

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等离子显示用稳定发光BaMgAl_(10)O_(17):Eu^(2+)荧光粉的制备及其性能

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中山大学学报（自然科学版） 2007年第1期46卷 57-61页

作者：邢德松龚孟濂邱学青杨东杰谢国伟华南理工大学化工与能源学院∥广东省绿色化学品重点实验室广东广州510640 中山大学化学与化学工程学院∥光电材料与技术国家重点实验室广东广州510275 香港浸会大学物理学系

利用微乳液—共沉淀高温法制备出了掺杂Eu2+摩尔比为10%的BaMgAl10O17:Eu2+(BAM)蓝色发光荧光粉。X-射线衍射(XRD)图谱分析表明所得粉体为单一相;场发射扫描电镜(FE-SEM)照片及粒度分布测试均显示其粒径在2μm左右;真空紫外光辐射下的... 详细信息

利用微乳液—共沉淀高温法制备出了掺杂Eu2+摩尔比为10%的BaMgAl10O17:Eu2+(BAM)蓝色发光荧光粉。X-射线衍射(XRD)图谱分析表明所得粉体为单一相;场发射扫描电镜(FE-SEM)照片及粒度分布测试均显示其粒径在2μm左右;真空紫外光辐射下的发光光谱(VUV-PL)显示所得粉体在147及172 nm处有较强的真空紫外吸收,172 nm光激发下的粉体在450 nm处呈现强的宽带发射;单指数拟合后的荧光寿命是1.03μs;最大内量子效率值为0.87±0.04;色坐标(x=0.144,y=0.063)显示所得粉体发光位于标准蓝色区;高温及真空紫外光照射劣化试验表明,利用该方法制备的BAM更稳定、更适合于等离子显示的应用。

关键词： BaMgAl10O17:Eu^2+ 微乳液-共沉淀高温法真空紫外光致发光

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Characteristics of vegetation structure in breeding area of Siberian rubythroat (Luscinia calliope) in Daecheongbong peak, Mt. Seoraksan national park, South Korea

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Journal of Forestry Research 2002年第3期13卷 239-240,252页

作者： Shin-Jae RHIM wee-Haeng HUR Chang-Bae LEE Young-Su PARK Seo-Yoon CHOI Woo-Shin LEE Department of Forest Resources Seoul National UniversitySuwon 441-744Korea

Most of forest birds have the characteristics for habitat selection. The purpose of this study is to clarify the vegetation structure in breeding area of Siberian rubythroat (Luscinia calliope). In Daecheongbong peak, Mt. Seoraksan national park, South Korea from May to August, 2001, breeding population of Siberian rubythroat and the dominant species in breeding area of Siberian rubythroat (Luscinia calliope) were surveyed by line transect method along the ridge in the Daecheongbong peak area. Number of individuals and location of song posts were observed and recorded. According to the survey results, the study area was classified into high, middle and low density areas. Those birds selected the forest area of dominant species for Ermans birch and dwarf Siberian pine as habitat and preferred the shrubs area with the lower height and higher coverage.

关键词： Luscinia calliope Siberian rubythroat, South Korea Vegetation structure

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有限数据条件下边坡可靠度分析的Bootstrap方法

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岩土力学 2016年第3期37卷 893-901,911页

作者：唐小松李典庆曹子君周创兵方国光武汉大学水资源与水电工程科学国家重点实验室湖北武汉430072 武汉大学水工岩石力学教育部重点实验室湖北武汉430072

基于Bootstrap抽样技术提出了有限数据条件下边坡可靠度分析方法。简要介绍了传统的边坡可靠度分析方法。采用Bootstrap方法模拟了抗剪强度参数概率分布函数的统计不确定性。以无限边坡为例研究了抗剪强度分布参数和分布类型不确定性对... 详细信息

基于Bootstrap抽样技术提出了有限数据条件下边坡可靠度分析方法。简要介绍了传统的边坡可靠度分析方法。采用Bootstrap方法模拟了抗剪强度参数概率分布函数的统计不确定性。以无限边坡为例研究了抗剪强度分布参数和分布类型不确定性对边坡可靠度的影响规律。结果表明:基于有限数据估计的样本均值、样本标准差和AIC值具有较大的变异性,这种变异性进一步导致了抗剪强度参数概率分布函数存在明显的统计不确定性。在考虑抗剪强度参数概率分布函数的统计不确定性时,边坡可靠度指标应为具有一定置信度水平的置信区间,而不是传统可靠度分析中的固定值。边坡可靠度指标的置信区间变化范围随安全系数的增加而增大,同时考虑分布参数和分布类型不确定性计算的可靠度指标具有更大的变异性和更宽的置信区间变化范围。Bootstrap方法为有限数据条件下抗剪强度参数概率分布函数统计不确定性的模拟以及边坡可靠度的评估提供了一条有效的途径。

关键词：边坡可靠度抗剪强度参数概率分布函数统计不确定性 Bootstrap方法

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2020 Roadmap on two-dimensional nanomaterials for environmental catalysis

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Chinese Chemical Letters 2019年第12期30卷 2065-2088页

作者： Yulu Yang Mingguang Wu Xingwang Zhu Hui Xu Si Ma Yongfeng Zhi Hong Xia Xiaoming Liu Jun Pan Jie-Yinn Tang Siang-Piao Chai Leonardo Palmisano Francesco Parrino Junli Liu Jianzhong Ma Ze-Lin Wang Ling Tan Yu-Fei Zhao Yu-Fei song Pardeep Singh Pankaj Raizada Deli Jiang Di Li R.A.Geioushy Jizhen Ma Jintao Zhang song Hu Rongjuan Feng Gang Liu Minghua Liu Zhenhua Li Mingfei Shao Neng Li Jiahe Peng wee-Jun Ong Nikolay Kornienko Zhenyu Xing Xiujun Fan Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082China School of the Environment and Safety Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013China College of Chemistry Jilin UniversityChangchun 130012China State Key Laboratory on Integrated Optoelectronics College of Electronic Science and TechnologyJilin UniversityChangchun 130012China Key Laboratory for Powder Metallurgy Central South UniversityChangsha 410083China Multidisciplinary Platform of Advanced Engineering Chemical Engineering DisciplineSchool of EngineeringMonash UniversityJalan Lagoon SelatanBandar SunwaySelangor 47500Malaysia University of Palermo Department of EngineeringPalermo 90128Italy University of Trento Department of Industrial EngineeringTrento 38123Italy School of Materials Science and Engineering Shaanxi University of Science&TechnologyXi'an 710021China College of Bioresources Chemistry and Materials Engineering Shaanxi University of Science&TechnologyXi'an 710021China State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China School of Chemistry Faculty of Basic SciencesShoolini UniversitySolanHP 173229India Himalayan Centre for Excellence in Nanotechnology Shoolini UniversitySolanmHP 173229India School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013China Institute for Energy Research Jiangsu UniversityZhenjiang 212013China Nanomaterials and Nanotechnology Department Advanced Materials DivisionCentral Metallurgical R&D Institute(CMRDI)Cairo 11421Egypt Key Laboratory for Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical Engineering Shandong UniversityJi'nan 250100China National Laboratory for Molecular Science(BNLMS) CAS Laboratory of ColloidInterface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence i

Environmental catalysis has drawn a great deal ofattention due to its clean ways to produce useful chemicals or carry out some chemical *** and electrocatalysis play important roles in these *** can decompose and remove organic pollutants from the aqueous environment,and prepare some fine ***,they also can carry out some important reactions,such as 02 reduction reaction(ORR),O2 evolution reaction(OER),H2 evolution reaction(HER),CO2 reduction reaction(C02 RR),and N2 fixation(NRR).For catalytic reactions,it is the key to develop high-performance catalysts to meet the demand fortargeted *** recentyears,two-dimensional(2 D) materials have attracted great interest in environmental catalysis due to their unique layered structures,which offer us to make use of their electronic and structural *** progress has been made so far,including graphene,black phosphorus,oxides,layered double hydroxides(LDHs),chalcogenides,bismuth-based layered compounds,MXenes,metal organic frameworks(MOFs),covalent organic frameworks(COFs),and *** content drives us to invite many famous groups in these fields to write the roadmap on two-dimensional nanomaterials for environmental *** hope that this roadmap can give the useful guidance to researchers in future researches,and provide the research directions.

关键词： Two-dimensional materials Graphene Black phosphorus C3N4 Metal organic frameworks MXenes

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Effects of paired associative magnetic stimulation between nerve root and cortex on motor function of lower limbs after spinal cord injury:study protocol for a randomized controlled trial

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Neural Regeneration Research 2022年第11期17卷 2459-2464页

作者： Ting-Ting Sun Guang-Yue Zhu Ya Zheng Ye-Ran Mao Qi-Long Hu Gong-Ming song Rong Xu Qi Yang Dan Zhao Xu-Yun Hua Dong-Sheng Xu Shanghai Yangzhi Rehabilitation Hospital(Shanghai Sunshine Rehabilitation Center) School of MedicineTongji UniversityShanghaiChina Rehabilitation Medical Center Tongji Hospital Affiliated to Tongji University School of MedicineShanghaiChina School of Rehabilitation Science Shanghai University of Traditional Chinese MedicineShanghaiChina Engineering Research Center of Traditional Chinese Medicine Intelligent Rehabilitation Ministry of EducationShanghaiChina Department of Traumatology and Orthopedics Yueyang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina Department of Rehabilitation Medicine Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghaiChina

Classic paired associative stimulation can improve synaptic plasticity,as demonstrated by animal expe riments and human clinical trials in spinal cord injury *** associative magnetic stimulation(dual-target peripheral and central magnetic stimulation)has been shown to promote neurologic recove ry after ***,it remains unclear whether paired associative magnetic stimulation can promote recovery of lower limb motor dysfunction after spinal cord *** hypothesize that the curre nt caused by central and peripheral magnetic stimulation will conve rge at the synapse,which will promote synapse function and improve the motor function of the relevant ***,this study aimed to examine the effects of paired associative magnetic stimulation on neural circuit activation by measuring changes in motor evoked and somatosensory evoked potentials,motor and sensory function of the lower limbs,functional health and activities of daily living,and depression in patients with spinal co rd *** will recruit 110 thora cic spinal trauma patients treated in the Department of Spinal Cord Injury,China Rehabilitation Hospital and randomly assign them to expe rimental and control groups in a 1:1 *** trial group(n=55)will be treated with paired associative magnetic stimulation and conventional rehabilitation *** control group(n=55)will be treated with sham stimulation and co nventional rehabilitation *** will be measured at four time points:baseline and 4,12,and 24 wee ks after the start of inte rvention(active or sham paired associative magnetic stimulation).The primary outcome measure of this trial is change in lower limb American Spinal Injury Association Impairment Scale motor function score from baseline to last *** outcome measures include changes in lower limb American Spinal Injury Association sensory function sco re,motor evoked potentials,sensory evoked potentials,modified Ashwo rth scale score,Masl

关键词： interstimulus interval motor-evoked potentials Modified Ashworth Scale Maslach Burnout Inventory paired-associative magnetic stimulation plasticity repetitive transcranial magnetic stimulation sensory-evoked potential spinal cord injury spike timing-dependent plasticity

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