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肿瘤社会工作的发展背景、实践模式与挑战

医学与哲学 2024年第1期45卷 76-80页

作者：孙振军蔡小芳华东理工大学社会与公共管理学院上海200237 上海交通大学医学院附属第九人民医院门急诊管理处上海200011

21世纪以来,得益于医学模式转型,对患者多元需求的关注,以及国家政策和国际经验等方面的影响,我国肿瘤社会工作得到初步发展。基于生态系统理论,肿瘤社会工作从微观、中观、宏观三个层面开展心理社会干预,总结了一些本土化实践经验。然... 详细信息

21世纪以来,得益于医学模式转型,对患者多元需求的关注,以及国家政策和国际经验等方面的影响,我国肿瘤社会工作得到初步发展。基于生态系统理论,肿瘤社会工作从微观、中观、宏观三个层面开展心理社会干预,总结了一些本土化实践经验。然而由于政策规划、组织支持、自身建设等限制性因素,给肿瘤社会工作的可持续发展带来挑战。肿瘤社会工作需要坚持需求导向和家庭为本,关注患者的环境资源与支持系统,以优势与赋权为视角,坚持跨学科合作理念和全程管理,满足患者及其家庭的心理社会需求,提高患者生命质量。

关键词：肿瘤社会工作心理社会干预心理社会需求

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一种临时紧固件及其预紧力测量方法

机械设计 2024年第4期41卷 36-41页

作者：孙珍军辛叶盛唐伟福建农林大学机电工程学院福建福州350002 韶关学院智能工程学院机电系广东韶关512000

薄壁件在正式装配前一般需要通过临时紧固件进行定位和夹紧,定位和夹紧的质量直接影响薄壁件的后续工艺质量,乃至最终的薄壁件产品质量,而临时紧固件的夹紧力和预紧力又是影响装配质量关键之中的关键。文中提出了一种能够测量临时紧固... 详细信息

薄壁件在正式装配前一般需要通过临时紧固件进行定位和夹紧,定位和夹紧的质量直接影响薄壁件的后续工艺质量,乃至最终的薄壁件产品质量,而临时紧固件的夹紧力和预紧力又是影响装配质量关键之中的关键。文中提出了一种能够测量临时紧固件预紧力的方法,该方法通过在临时紧固件内设置成组碟形弹簧片,来扩大临时紧固件在受力时产生的变形量,该变形量将被倚靠在内六角扳手上的压缩弹簧感知,进而被紧邻压缩弹簧的力传感器感知,所以,临时紧固件所受预紧力最后通过碟形弹簧片受力与变形之间的关系反推。内六角扳手的另一端通过套筒联轴器与电机连接,内六角扳手的轴向位移量在套筒联轴器内部补偿,从而实现了临时紧固件的自动化装配与同步预紧力的测量,最终得出了配合M4临时紧固件使用的碟形弹簧片的参数、组合方式,以及监控预紧力时的变形范围。

关键词：薄壁件临时紧固件预紧力测量自动化装配碟形弹簧片

TiC对Fe_(55)Nb_(15)Ti_(15)Ta_(15)合金非晶形成能力、微观组织及热稳定性的影响

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粉末冶金技术 2024年第1期42卷 84-90页

作者：唐翠勇谢文彬邹泽昌孙珍军陈学永福建农林大学机电工程学院福州350100 福建船政交通职业学院机械与智能制造学院福州350007

铁基非晶合金存在非晶形成能力低、室温塑性差等问题,极大地限制了其在工程中的应用。基于“近混合焓+有效原子尺寸差”非晶合金成分设计理念设计了Fe_(55)Nb_(15)Ti_(15)Ta_(15)全金属组元粉末,采用机械合金化球磨工艺成功制备出非晶... 详细信息

铁基非晶合金存在非晶形成能力低、室温塑性差等问题,极大地限制了其在工程中的应用。基于“近混合焓+有效原子尺寸差”非晶合金成分设计理念设计了Fe_(55)Nb_(15)Ti_(15)Ta_(15)全金属组元粉末,采用机械合金化球磨工艺成功制备出非晶态合金粉末,并研究了TiC陶瓷粉末的加入对Fe_(55)Nb_(15)Ti_(15)Ta_(15)合金粉末非晶形成能力、微观形貌和热稳定性的影响。结果表明:Fe_(55)Nb_(15)Ti_(15)Ta_(15)合金粉末具有较好的非晶形成能力和热稳定性,TiC陶瓷粉末均匀稳定的分布于Fe_(55)Nb_(15)Ti_(15)Ta_(15)非晶合金粉末中。添加质量分数15%TiC陶瓷粉末延缓了球磨过程中Fe_(55)Nb_(15)Ti_(15)Ta_(15)合金粉末的合金化和非晶化进程,降低了热稳定性,使得球磨后粉末粒度变小,分布范围变宽。该项工艺可制备出具有较大室温塑性的大块铁基非晶合金原始粉末。

关键词：非晶合金机械合金化形成能力微观组织热稳定性

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数字微波技术在广播电视信号传输中的应用

移动信息 2024年第2期46卷 23-25页

作者：孙振军沂南县融媒体中心山东临沂276300

当前,我国广播电视事业逐渐适应了新时代的要求。与传统的信号传送方式相比,在综合技术性能上,数字微波技术具有更优越的性能。这是因为将数字微波与现有广播电视信号相结合,可以最大程度地发挥信号传递的有效性,且能降低广播电视广播... 详细信息

当前,我国广播电视事业逐渐适应了新时代的要求。与传统的信号传送方式相比,在综合技术性能上,数字微波技术具有更优越的性能。这是因为将数字微波与现有广播电视信号相结合,可以最大程度地发挥信号传递的有效性,且能降低广播电视广播系统的整体费用。因此,相关部门在传送各种类型的广播电视信号时,应充分了解数字微波技术具有的特点和含义,注重应用灵活的数字微波技术。基于此,文中对数字微波技术在广播电视信号传输中的实施进行了探析。

关键词：数字微波技术广播电视信号传输

Molecular toxicity of earthworms induced by cadmium contaminated soil and biomarkers screening

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Journal of Environmental Sciences 2012年第8期24卷 1504-1510页

作者： Xiaohui Mo Yuhui Qiao zhenjun sun Xiaofei sun Yang Li Department of Ecology Science and Engineering China Agricultural UniversityBeijing 100193China State Key Laboratory for Agrobiotechnology China Agricultural UniversityBeijing 100193China

Earthworms （Eiseniafetida） were used to study the impact of low-dose cadmium in treated artificial soil （0, 0.6, 3, 6, 15, 30 mg/kg） and contaminated natural soil （1.46 mg/kg）. The changes of earthworms＇ physiological related gene expressions of metallothionein （MT）, armetocin, calreticulin and antimicrobial peptides were detected using real-time PCR after a 70-day incubation period. The results showed that low doses of cadmium could up regulate earthworms＇ MT and down regulate annetocin gene expression and show a significant positive and negative correlation respectively. The expression of two other genes, calreticulin and anti-microbial peptides, was induced at low doses of cadmium （highest gene expression at 0.6 mg/kg for calreticulin and 6 mg/kg for anti-microbial peptides） and inhibited at high doses. No significant correlation was found for these two genes. This study shows that MT and annetocin genes expression found in earthworms in contaminated soil have the potential to be developed as biomarkers of soil cadmium pollution.

关键词： earthworm cadmium low-dose genes expression molecular toxicity

Responses of Saline Soil Properties and Cotton Growth to Different Organic Amendments

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Pedosphere 2018年第3期28卷 521-529页

作者： WU Yupeng LI Yufei ZHANG Yi BI Yanmeng sun zhenjun College of Resources and Environment Huazhong Agricultural University Wuhan 430070( China) College of Resources and Environmental Sciences China Agricultural University Beijing 100194( China) Institute of Plant Nutrition and Resources Beijing Academy of Agriculture and Forestry Sciences Beijing 100097( China) School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen 518000( China)

Application of organic waste to saline alkaline soils is considered to be a good practice for soil remediation. The effects of applying different organic amendments （e.g., cattle dung, vermicompost, biofertilizer） and earthworm inoculations （Eisenia fetida） on saline soils and cotton growth were investigated during i year of cotton cultivation. Compared to the control （applied with inorganic NPK fertilizer）, applying organic amendments improved soil physicochemical properties. Biofertilizer application improved available nutrient content, reduced short-term soil electrical conductivity, and produced the highest cotton yield, whereas cattle dung and vermicompost applications resulted in higher soil organic matter content. Application of organic amendments significantly increased soil microbial biomass carbon during the flowering period, which sharply declined at harvest. This was especially true for the biofertilizer treatment, which also exhibited lower nematode abundance compared with the other organic materials. Earthworm inoculation following cattle dung application failed to significantly change soil physicochemical properties when compared to the treatments without earthworm inoculation. Results suggest that biofertilizer application to saline soil would improve soil nutrient status in the short-term, whereas cattle dung application would improve soil organic matter content and increase soil organism abundance to a greater extent. However, different strategies might be required for long-term saline soil remediation.

关键词： biofertilizer cattle dung earthworm inoculation saline soil remediation vermicompost

Geology, Mineralization, Fluid Inclusion and Stable Isotope of the Early Cretaceous Sn and Associated Metal Deposits in the Southern Great Xing’an Range, NE China: A Review

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Acta Geologica Sinica(English Edition) 2019年第5期93卷 1522-1543页

作者： WANG Chengyang LIU Guanghu sun zhenjun LIU Jie LI Jianfeng LIANG Xinyang Institute of Disaster Prevention SanheHebei 065201China College of Urban and Environmental Science Liaoning Normal UniversityDalianLiaoning 116029China

The Southern Great Xing’an Range(SGXR) hosts a number of Early Cretaceous Sn and associated metal deposits, which can be divided into three principal types according to their geological characteristics: skarn type deposits, porphyry type deposits and hydrothermal vein type deposits. Fluid inclusion assemblages of different types of deposits are quite different, which represent the complexities of metallogenic process and formation mechanism. CH4 and CO2 have been detected in fluid inclusions from some of deposits, indicating that the ore-forming fluids are affected by materials of Permian strata. Hydrogen and oxygen isotope data from ore minerals and associated gangue minerals indicate that the initial ore fluids were dominated by magmatic waters, some of which had clearly exchanged oxygen with wall rocks during their passage through the strata. The narrow range for the δ34S values presumably reflects the corresponding uniformity of the ore forming fluids, and these δ34S values have been interpreted to reflect magmatic sources for the sulfur. The comparation between lead isotope ratios of ore minerals and different geological units’ also reveals that deeply seated magma has been a significant source of lead in the ores.

关键词： fluid inclusion stable isotope Early Cretaceous Sn and associated metal deposits Southern Great Xing'an Range

Geochronology and Geochemical Characteristics of Intrusion in the Jinchangliang Gold Deposit,Inner Mongolia and Their Tectonic Significance

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Acta Geologica Sinica(English Edition) 2015年第6期89卷 1947-1962页

作者： sun zhenjun sun Guosheng YU Henan TIAN Yi LIU Shanli XIANG Zhu MENG Jian XUE Huaiyu LU Lina Department of Earthquake Science Institute of disaster prevention Science and Technology College of Earth Sciences Jilin University Liaoning Survey Academy of Geology and Mineral Resources Geophysical Research Institute of Jilin Province

Discovered and mined in recent years, the Jinchangliang gold deposit has not yet been studied in its genetic type. In this paper, the geological features of ore deposit, S isotopic composition, metallogenic age and elements geochemical of the granite closely related to mineralization were discussed. The results of the geological features of ore deposit and S isotopic composition show that ore-bearing hydrothermal solution was closely related with the intrusion of magmatic. The granite is characteristic of high silica SiO2=72.38%–72.98%, high aluminum and Al2O3=14.22%–14.35%, low calcium CaO=0.16% –0.26%, and low value of FeOT/MgO（6.86–7.73）, and rich in alkalis Na2O+K2O=9.11%–9.24%, suggesting that it is high-K calc-alkaline, highly fractionated, weak aluminum A-type granite. The REE patterns are inclined to right and show intense fractionation between LREE and HREE, without obvious negative Eu anomaly（δEu=0.80–0.84）. The primitive mantle-normalized spidergrams are characterized by depletion of Ba, U, Ta, Nb, Zr, Ti and P, which implies that the granite has the characteristics of the crust-mantle mixing. S isotopes also indicate that the material source of gold deposit is closely related to the granite rocks. The LA-ICP-MS Zircon UPb age of the Damiao rock mass medium-fine grained monzogranite（belonging to the early IndoChina） is（245±1） Ma. It shows that Jinchangliang gold deposit was not formed in Yanshanian, but the early Indo-China. Specifically speaking, the deposit was formed in the collision stage of the North China plate and the Siberian plate.

关键词： Geochemistry LA-ICP-MS zircon U-Pb dating Early Indo-China diagenesis and metallogenic Aohanqi Inner Mongolia

Earthworms in soil ecology and organic waste management

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Pedosphere 2021年第3期31卷 373-374页

作者： Yinsheng LI zhenjun sun Feng HU Kevin R.BUTT Joann K.WHALEN School of Agriculture and Biology Shanghai Jiao Tong UniversityShanghai 200240China College of Resources and Environmental Sciences Agricultural UniversityBeijing 100083China College of Resources and Environmental Sciences Nanjing Agricultural UniversityNanjing 210095China School of Natural Sciences University of Central LancashirePreston PR12HEUK Department of Natural Resource Sciences Faculty of Agricultural and Environmental SciencesMcGill UniversityQuebec H9X 3V9Canada

Earthworms are important members of the soil *** ***(1881)described the important function of earthworms in pedogenesis and in maintenance of soil fertility,there has been continual interest in studying earthworm biology and *** of the attention in such studies is on earthworm functions in soil nutrient ***,with increasing concerns about the environment,studies using earthworms to mediate organic waste treatment and as an indicator of soil pollution and remediation strategies have grown rapidly in recent years.

关键词： soil fertility pollution