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Optimization of gas tungsten arc welding parameters for the dissimilar welding between AISI 304 and AISI 201 stainless steels
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作者 Wichan Chuaiphan Loeshpahn Srijaroenpramong 《Defence Technology(防务技术)》 CAS CSCD 2019年第2期170-178,共9页
This present study applied gas tungsten arc welding in order to join AISI 304 and AISI 201 stainless steels.The objective was to find the optimum welding condition that gave a weld bead in accordance with DIN EN ISO 2... This present study applied gas tungsten arc welding in order to join AISI 304 and AISI 201 stainless steels.The objective was to find the optimum welding condition that gave a weld bead in accordance with DIN EN ISO 25817 quality level B,pitting corrosion potential of the weld metal of not less than that of the AISI 304 base metal and a ratio of delta-ferrite in austenite matrix of the weld metal of not lower than 3%.Such a ratio is a criterion widely accepted to protect the weld metal from solidification cracking.At the welding current of 75 A and by using pure argon as a shielding gas 0 to 8 vol.%and applying a welding speed in the range of 2e3.5mm·s^-1 was found to give a complete weld bead with an increased depthper-width ratio(promote weldability).For welding speed in the range of 3 and 3.5mmmm·s^-1(promote corrosion resistance).Increasing the welding speed in such a range decreased the amount of delta-ferrite in the austenite matrix,and increased the pitting corrosion potential of the weld metal to be 302 mVSCE.This value was still lower than the pitting corrosion potential of the AISI 304 base metal.Mixing nitrogen in argon shielding gas increased the nitrogen content in the weld.The optimum condition was found when using a welding speed of 3mm·s^-1 and mixing 1 vol.%of nitrogen in the argon shielding gas(promote weldability and corrosion resistance).Pitted areas after potentiodynamic test were observed in the austenite in which its Cr content was relatively low. 展开更多
关键词 Dissimilar WELDMENT AISI 304 STAINLESS STEEL AISI 201 STAINLESS STEEL Gas tungsten arc welding(GTAW) Nitrogen Corrosion BEHAVIOR Mechanical BEHAVIOR
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基于计划行为理论的培训在ICU护士倡导器官捐献中的应用
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作者 刘博秀 《中华现代护理杂志》 2019年第2期236-238,共3页
目的探讨基于计划行为理论(TPB)的教育方案对ICU护士倡导器官捐献的行为意愿的影响。方法采用目的抽样法,选取2017年8-11月哈尔滨某三级甲等医院外科ICU、心外ICU和急诊创伤ICU护士122名为研究对象,采用随机数字表法将护士分为试验组(n=... 目的探讨基于计划行为理论(TPB)的教育方案对ICU护士倡导器官捐献的行为意愿的影响。方法采用目的抽样法,选取2017年8-11月哈尔滨某三级甲等医院外科ICU、心外ICU和急诊创伤ICU护士122名为研究对象,采用随机数字表法将护士分为试验组(n=60)和对照组(n=62)。试验组进行基于TPB的教育方案的培训,对照组仅发给1份医院常规器官捐献宣传手册。干预前后采用ICU护士器官捐献倡导行为问卷对两组护士进行调查。结果干预前两组护士器官捐献倡导行为问卷得分差异无统计学意义(P>0.05),干预后试验组护士器官捐献倡导行为问卷得分(2.85±0.36)分,高于对照组的(2.57±0.43)分,差异有统计学意义(t=3.893,P<0.01)。结论基于TPB的教育方案比传统宣传手段提高了ICU护士倡导器官捐献的行为意愿,有助于器官捐献事业的开展。 展开更多
关键词 行为 计划行为理论 重症监护病房 器官捐献 教育
Pea leafminer Liriomyza huidobrensis (Diptera: Agromyzidae) uses vibrational duets for efficient sexual communication
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作者 Jin Ge Jia-Ning Wei +3 位作者 Ding-Jie Zhang Chun Hi De-Zhi Zheng Le Kang 《昆虫科学:英文版》 SCIE CAS CSCD 2019年第3期510-522,共13页
The pea leafminer (Liriomyza huidobrensis) is a notorious pest of vegetables and ornamental plants worldwide. Despite a large number of studies on its biology and ecology, the courtship behavior and sexual communicati... The pea leafminer (Liriomyza huidobrensis) is a notorious pest of vegetables and ornamental plants worldwide. Despite a large number of studies on its biology and ecology, the courtship behavior and sexual communication of this species remain unclear. Here, we studied vibrational communication in the sexual interaction of the pea leafminer. On host plant leaves, females and males behaviorally displayed the bobbing-quivering alternation, which finally led to copulation. Moreover, records of laser vibrometry revealed threesignal duets underlying the behavioral alternation. Sexually mature males spontaneously emitted calls (MCs) to initiate the duets. The females rapidly responded to MCs by emitting replies (FRs) that are longer in duration. The FRs further triggered male replies (MRs) in their search for potential partners. Leafminer-produced vibrational signals convey efficient information to partners and generate pair formation on stretched substrates, such as plant leaves and nylon mesh, but cannot elicit responses on dense substrates, such as glass and plastic. Vibrational playbacks of both MCs and FRs can elicit replies in females and males, respectively. This study completely characterizes substrate-borne vibrational duets in a dipteran insect. The discovery of vibrational sex signals in the pea leafminer provides new insights for the development of novel approaches to control the pest and its relative species. 展开更多
关键词 biotremology COURTSHIP behavior LIRIOMYZA VIBRATIONAL communication
护士糖尿病管理知识、态度、行为、能力的研究进展
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作者 付聪慧 马西文 +1 位作者 杜慧平 李静 《全科护理》 2019年第2期161-163,共3页
介绍护士糖尿病管理知识、态度、行为、能力的现状及影响因素,以期为制订糖尿病培训方案提供参考和依据。
关键词 护士 糖尿病 知识 态度 行为 能力
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耳鸣动物模型概述 预览
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作者 李金飞 贾志姣(综述) 丁雷(审校) 《中国听力语言康复科学杂志》 2019年第1期32-34,共3页
本文对耳鸣动物模型制作方法进行整理归纳,涵盖经典的饮水抑制法、跳台反射法、声音惊吓刺激反射法,以及多种由此演化改进的模型制作方法,并探讨“肝郁脾虚证”耳鸣大鼠模型的制作,以便于相关研究应用。
关键词 耳鸣 动物模型 行为学 肝郁脾虚
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Enhanced Strength and Corrosion Resistance of Mg–2Zn–0.6Zr Alloy with Extrusion
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作者 Luan-Xiang Wang Ren-Bo Song +1 位作者 Chang-Hong Cai Jing-Yuan Li 《金属学报:英文版》 SCIE EI CAS CSCD 2019年第1期10-22,共13页
The microstructure, mechanical properties and corrosion behavior of Mg–2 Zn–0.6 Zr alloy under the as-cast and asextruded conditions were investigated. Microstructure analysis indicated the remarkable grain refineme... The microstructure, mechanical properties and corrosion behavior of Mg–2 Zn–0.6 Zr alloy under the as-cast and asextruded conditions were investigated. Microstructure analysis indicated the remarkable grain refinement by extrusion, as well as notable reductions in volume fraction and size of precipitate phases. As compared with the as-cast alloy, the asextruded alloy exhibited better mechanical performance, especially in yield strength which was promoted from 51 to 194 MPa. Refined grains, dispersive precipitate phases and texture were thought to be the main factors affecting the improved performance in strength. The electrochemical measurement and immersion test revealed the corrosion rate of Mg–2 Zn–0.6 Zr alloy by extrusion decreased from 1.68 to 0.32 mm/year. The reasons for the enhanced corrosion resistance were mainly attributed to the decreased volume fraction and Volta potential of the precipitate phases, the refinement of the grain size, as well as the formation of more protective corrosion film. 展开更多
关键词 Mg–2Zn–0.6Zr EXTRUSION STRENGTH CORROSION BEHAVIOR
LARGE TIME BEHAVIOR OF SOLUTION TO NONLINEAR DIRAC EQUATION IN 1+1 DIMENSIONS 预览
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作者 张永前 赵勤 《数学物理学报:B辑英文版》 SCIE CSCD 2019年第2期597-606,共10页
This paper studies the large time behavior of solution for a class of nonlinear massless Dirac equations in R1+1. It is shown that the solution will tend to travelling wave solution when time tends to infinity.
关键词 large time behavior NONLINEAR DIRAC EQUATION gross-Neveu model global STRONG SOLUTION gravelling wave SOLUTION
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Effect of Short-term Forest Bathing in Urban Parks on Perceived Anxiety of Young-adults: A Pilot Study in Guiyang, Southwest China 预览
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作者 ZHOU Changwei YAN Lingbin +5 位作者 YU Lifei WEI Hongxu GUAN Haoming SHANG Chongfei CHEN Feiyu BAO Junzhou 《中国地理科学:英文版》 SCIE CSCD 2019年第1期139-150,共12页
Forest can be taken as a natural therapy to alleviate perceived anxiety of visitors. Given the geographical difference between urban and rural forest environments, little is known about the urban forest therapy effect... Forest can be taken as a natural therapy to alleviate perceived anxiety of visitors. Given the geographical difference between urban and rural forest environments, little is known about the urban forest therapy effect of anxiety alleviation with reference to the rural forest. In this study, forty-three university students(aged from 19 to 23) were recruited as participants to visit the forest parks at urban and rural areas of Guiyang City on 21 and 23 December 2016. The forest experience was separated by four sceneries. Participants were asked to complete questionnaires by self-evaluating specific anxiety change from 12 questions with scores from 1 to 10 at both entrance and exit of the parks. The Wilcoxon signed-rank test and paired t-test were used to compare the change of anti-anxiety scores during forest bathing and between urban and rural forests, respectively. Results revealed that forest bathing in the urban park can alleviate the anxiety from financial state(P = 0.0028), exam-pass pressure(P = 0.0040) and love-affair relationship(P = 0.0286). Although rural forest bathing can also alleviate the anxiety from financial state(P = 0.0222), meanwhile, it maintained the anxiety about campus life(P < 0.0001). Forest tree richness tended to be higher in the rural forest park than in the urban one, which in contrast decreased the anxiety alleviation from inter-communication in the rural forest park(P = 0.0487). Principle component analysis indicated that participants tended to perceive more decline of anxiety from social contact in the urban forest. In conclusion, university students were recommended to pay a short visit to the urban forest with partners if they felt anxious about personal affairs and felt necessary to talk with others. For general people’s visiting, urban forest trees can be controlled in diversity to some extent to look orderly and alleviate perceived anxiety. 展开更多
关键词 urbanization tension MENTAL disease behavior disorder UNDERGRADUATE WELL-BEING
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Theoretical prediction of the yield of strong oxides under acoustic cavitation
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作者 孙晶 沈壮志 莫润阳 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第1期415-422,共8页
Considering liquid viscosity, surface tension, and liquid compressibility, the effects of dynamical behaviors of cavitation bubbles on temperature and the amount of oxides inside the bubble are numerically investigate... Considering liquid viscosity, surface tension, and liquid compressibility, the effects of dynamical behaviors of cavitation bubbles on temperature and the amount of oxides inside the bubble are numerically investigated by acoustic field,regarding water as a work medium. The effects of acoustic frequency, acoustic pressure amplitude, and driving waveforms on bubble temperature and the number of oxides inside the bubbles by rapid collapse of cavitation bubbles are analysed.The results show that the changes of acoustic frequency, acoustic pressure amplitude, and driving waveforms not only have an effect on temperature and the number of oxides inside the bubble, but also influence the degradation species of pollution,which provides guidance for improving the degradation of water pollution. 展开更多
关键词 ACOUSTIC frequency ACOUSTIC pressure AMPLITUDE driving WAVEFORM CAVITATION behavior OH RADICAL
2型糖尿病患者足部护理调查及影响因素分析
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作者 刘伶俐 《护理实践与研究》 2019年第5期3-5,共3页
目的 分析2型糖尿病患者足部护理知识和足部自我护理行为现状及影响因素。方法 选择2015年9月至2017年12月我院收治的2型糖尿病患者120例,问卷调查其一般资料、足部自我护理行为、足部护理知识等,并分析其影响因素。结果 单因素和多元... 目的 分析2型糖尿病患者足部护理知识和足部自我护理行为现状及影响因素。方法 选择2015年9月至2017年12月我院收治的2型糖尿病患者120例,问卷调查其一般资料、足部自我护理行为、足部护理知识等,并分析其影响因素。结果 单因素和多元逐步线性分析显示,影响足部护理的因素为病程、接受糖尿病并发症知识教育、定期复查、文化程度,影响2型糖尿病足部护理行为的因素为接受并发症教育、定期复查、病程、文化程度、年龄、性别。结论 2型糖尿病患者足部自我护理行为不太理想,护理人员应鼓励患者定期参与健康教育、接受复查等,协助其提升足部自我护理水平,改善其自我护理行为,促进疾病恢复。 展开更多
关键词 2型糖尿病 足部护理 自我护理 行为 因素
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归脾汤对创伤后应激障碍模型大鼠预防作用探究 预览
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作者 陈光耀 戴方圆 +4 位作者 李姝蒙 徐行 刘金凤 邹琳 宋月晗 《世界中西医结合杂志》 2019年第1期54-56,65共4页
目的观察归脾汤对单次延长应激模型(SPS)建立的创伤后应激障碍(PTSD)大鼠预防作用。方法将40只大鼠随机分为正常组、模型组、归脾汤组、氟西汀组,每组10只。造模前2周正常组、模型组给予生理盐水灌胃,归脾汤组、氟西汀组分别给予归脾汤... 目的观察归脾汤对单次延长应激模型(SPS)建立的创伤后应激障碍(PTSD)大鼠预防作用。方法将40只大鼠随机分为正常组、模型组、归脾汤组、氟西汀组,每组10只。造模前2周正常组、模型组给予生理盐水灌胃,归脾汤组、氟西汀组分别给予归脾汤悬浊液和氟西汀悬浊液灌胃。造模后停止给药,静养1周后进行旷场实验及僵立行为测试,检测各组间大鼠行为学变化。结果模型组较之于正常组旷场试验运动总距离、穿格次数及单次最大运动距离减少,僵立行为次数及时间增加,差异具有统计学院意义(P<0.05,P<0.01)。归脾汤组较之于模型组旷场实验运动总距离、穿格次数增加,差异具有统计学院意义(P<0.05)。氟西汀组较之于模型组及归脾汤组僵立行为次数及时间减少,差异具有统计学院意义(P<0.05)。结论归脾汤对PTSD模型大鼠焦虑样行为具有一定的预防作用,氟西汀对该模型大鼠恐惧样行为具有一定的预防作用。 展开更多
关键词 创伤后应激障碍 归脾汤 预防 行为学
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Service life prediction of AP/Al/HTPB solid rocket propellant with consideration of softening aging behavior
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作者 Walid M.ADEL Guozhu LIANG 《中国航空学报:英文版》 SCIE EI CAS CSCD 2019年第2期361-368,共8页
The aging behavior of softening composite solid propellant was investigated by measuring its mechanical and ballistic prosperities during prolonged storage at elevated and room temperatures. Accelerated aging was cond... The aging behavior of softening composite solid propellant was investigated by measuring its mechanical and ballistic prosperities during prolonged storage at elevated and room temperatures. Accelerated aging was conducted at 65 °C for 231 days while the normal aging was performed at 25 ± 3 °C and relative humidity less than 50% for 8 years. The mechanical properties were obtained from uniaxial tensile tests for the aged propellant specimens while the ballistic properties were determined from static firing tests of subscale motors aged for 112 days at 65 °C. The mechanical results show that the maximum tensile strength and Young’s modulus initially increase and subsequently decrease with increasing aging time, while the maximum tensile strain generally increases with increasing aging time. The ballistic properties like burning rate show a small change which cannot affect the ballistic performance. The experimental results show that the changes in the mechanical properties are significant during the aging period, but the burning rate does not undergo significant changes. From this study, it is observed that the propellant ages through a combination of reactions like post-cure, oxidative cross-linking, chain scission, and hydrolysis. The chain scission and the hydrolysis effect are the most significant process, which makes the propellant soft and extendible. The observed aging mechanism has been modeled using an exponential function with two terms which can describe the complex behavior of the aging. By applying Arrhenius equation,the activation energy values were obtained based on the propellant mechanical properties. The shelf life of this propellant formulation at 25 °C is predicted to be 13 years using the modulus as failure criteria and control parameter. 展开更多
关键词 AGING HYDROLYSIS Service LIFE SOFTENING behavior Solid PROPELLANT
An efficient analytical homogenization technique for mechanical-hygrothermal responses of unidirectional composites with applications to optimization and multiscale analyses
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作者 Guannan WANG 《中国航空学报:英文版》 SCIE EI CAS CSCD 2019年第2期382-395,共14页
The elasticity-based Locally Exact Homogenization Theory(LEHT) is extended to study the mechanical-hygrothermal behaviors of unidirectionally-reinforced composites. Based on the framework developed previously, thermal... The elasticity-based Locally Exact Homogenization Theory(LEHT) is extended to study the mechanical-hygrothermal behaviors of unidirectionally-reinforced composites. Based on the framework developed previously, thermal and moisture effects are incorporated into the LEHT to study the homogenized and localized responses of heterogeneous materials, which are validated using available analytical and numerical techniques. The LEHT programs are then encapsulated as subroutines with Input/Output(I/O) interfaces, to be readily applied in different computational scenarios. In order to illustrate the efficiency of the LEHT, the theory is firstly coupled to the Particle Swarm Optimization(PSO) algorithm in order to minimize the axial thermal expansion mismatch in hexagonal and square fiber arrays by tailoring the fiber volume fraction. The LEHT is then implemented into the lamination theory to study fabrication-induced residual stresses arising during the cool-down process which introduces local laminate stresses owing to thermo-mechanical property mismatch between plies. Both of these applications illustrate the efficiency and accuracy of the LEHT in generating effective properties and local stress distributions, making the theory a golden standard in validating other analytical or numerical techniques as well as a reliable tool in composite design and practice for professionals and non-professionals alike. 展开更多
关键词 COEFFICIENTS of moisture EXPANSION COEFFICIENTS of thermal EXPANSION Elasticity-based LOCALLY exact HOMOGENIZATION theory Mechanical-hygrothermal behavior Multiscale laminate analysis Particle swarm OPTIMIZATION
2014-2016年广州市海珠区男男性行为人群艾滋病知识和行为调查 预览
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作者 朱凯星 何虹励 +1 位作者 许美振 邓细妹 《中国健康教育》 北大核心 2019年第1期40-45,共6页
目的了解广州市海珠区男男性行为者(MSM)的艾滋病知识知晓情况及影响因素、性行为及艾滋病、梅毒感染情况,为制定MSM人群干预策略提供依据。方法 2014—2016年,由调查员对MSM进行面对面问卷调查及艾滋病、梅毒血清学检测。结果艾滋病知... 目的了解广州市海珠区男男性行为者(MSM)的艾滋病知识知晓情况及影响因素、性行为及艾滋病、梅毒感染情况,为制定MSM人群干预策略提供依据。方法 2014—2016年,由调查员对MSM进行面对面问卷调查及艾滋病、梅毒血清学检测。结果艾滋病知识总知晓率为93.63%(809/864), HIV抗体和梅毒阳性检出率分别为8.56%和5.09%。最近1次同性肛交性行为安全套使用率从2014年的70.42%上升为2016年的81.54%(x~2=8.6731,P<0.05),最近6个月发生同性肛交性行为时每次均用安全套比例从2014年的52. 82%上升为2016年的65.38%(χ~2=9.1196, P<0.05)。多因素Logistic回归分析结果显示,文化程度高(OR=3.812, 95%CI:2.046~7.100)、最近1年接受过干预服务(OR=3.714, 95%CI:1.783~7. 736)、同伴教育(OR=4.258, 95%CI:1.227~14.771)是有利于提高艾滋病知晓率的影响因素(P<0.05)。多因素分析结果显示,最近1年接受过干预服务(OR=1.617, 95%CI:1.152~2.271)的MSM更容易坚持使用安全套。结论广州市海珠区近3年的干预措施取得一定成效,但MSM人群知行分离严重,需加大安全套发放、咨询检测、同伴教育等干预力度,减少不安全性行为,降低感染艾滋病和梅毒的风险。 展开更多
关键词 男男性行为人群 艾滋病 知识知晓率 行为
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An examination of the effect of loneliness on the innovative behavior of health science faculty students
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作者 Fadime Cinar Kerem Toker 《中华医学杂志:英文版》 SCIE CAS CSCD 2019年第2期171-182,共12页
Background:Contributing to the innovative behavior of individuals in the health management process is a desirable condition for increased health institution performance.The relationship between the sense of loneliness... Background:Contributing to the innovative behavior of individuals in the health management process is a desirable condition for increased health institution performance.The relationship between the sense of loneliness and individual innovation behaviors has not been studied and relevant literature is extremely limited.The purpose of this research was to examine the effect of an individual's sense of loneliness on their innovative behavior.Methods:The research was performed between January and October 2018.The effects of loneliness feelings on the individual innovative behaviors of 451 health science faculty students were measured.The data were collected using the "Individual Information Form," the "individual innovation scale," and the "University of California Los Angeles loneliness scale." The reliability and validity of the scales were tested with Structural Equation Modeling.Results:It was found that the female participants showed exhibited more innovative behavior than the men.However, there was no significant difference in the loneliness status of participants by gender.A group of 23-year-old individuals showed a significant difference in the risk taking dimension compared to other age groups.First-grade students had more points in the experimental openness and opinion leadership sub-dimension than the other classes.It was observed that the behavior is molded as the education level increases.The regression models showed that loneliness has a negative effect of -0.254 on experiential openness and the leadership of ideas, and has a negative effect of -0.216 on risk taking.There was no effect of the sub-dimensions of loneliness on change resistance.Moreover, on the individualistic behavior of physical loneliness, a -0.267 negative effect was observed.Emotional loneliness has no effect on the sub-dimensions of individual innovation.Finally, the total sense of loneliness was found to have a negative effect on total individual innovation.Conclusions:The study results clearly show that physical loneliness has a ne 展开更多
关键词 LONELINESS INNOVATIVE behavior HEALTH science
STD门诊患者艾滋病相关知识与行为及STD感染调查
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作者 陈旭娥 李季 马婷 《海南医学》 CAS 2019年第3期373-376,共4页
目的了解性传播疾病(STD)门诊患者艾滋病相关知识、态度、安全套使用及性传播疾病(STD)感染状况,为STD门诊患者开展健康教育与行为干预提供依据。方法 2017年1~3月对在贵州省人民医院STD门诊就诊的523例就诊者进行问卷调查,STD按要求进... 目的了解性传播疾病(STD)门诊患者艾滋病相关知识、态度、安全套使用及性传播疾病(STD)感染状况,为STD门诊患者开展健康教育与行为干预提供依据。方法 2017年1~3月对在贵州省人民医院STD门诊就诊的523例就诊者进行问卷调查,STD按要求进行采样检测。结果 STD门诊就诊者艾滋病相关知识相对欠缺,HIV知晓率仅为11.09%(58/523),城市居民、青壮年、大专以上、干部、高收入人群艾滋病知晓率明显高于其他人群:其中贵阳户藉者知晓率(23.08%)高于贵州其他地区(4.89%)及外省户藉者(19.57%);20~40岁青壮年(15.81%)高于其他年龄(≤20岁5.13%,40~50岁4.26%,>50岁0);大专及以上学历(17.86%)高于其他低学历组(小学及以下1.59%、初中7.48%、高中及中专12.03%);干部(32.43%)高于其他职业(暗娼26.09%、个体、无业10.78%、商业供销10.29%、工人司机8.43%、学生5.56%、农民1.03%);随月收入增加,HIV知晓率增高,月收入>8 000元组(60.00%)高于其他收入组(<1 000元2.32%,1 000~3 000元8.61%,3 000~5 000元12.82%,5 000~8 000元16.13%),以上各项指标比较差异均有统计学意义(P<0.05);而不同性别、不同婚姻状况、是否有性生活史、不同性取向者知晓率比较差异均无统计学意义(P>0.05);STD门诊就诊者STD总检出率高达53.53%(280/523),其中仅感染一种性病者48.76%(255/523),同时感染两种或两种以上性病者4.77%(25/523);最近一次性行为中安全套使用率仅为24.09%(126/523),最近三个月每次性行为均使用安全套仅占9.37%(49/523)。51.61%(96/186)的女性调查者认为是被配偶或固定性伴感染,仅26.41%(89/337)男性调查者认为是被配偶或固定性伴感染。结论 STD门诊患者艾滋病知识知晓率低,性病检出率高,安全套使用率低,应在STD患者中开展针对性干预措施,有效筛查和控制STD,推广安全套使用,以降低高危人群感染HIV/STD风险。 展开更多
关键词 性传播疾病门诊 艾滋病 性传播疾病 行为
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山东省西北地区女性减盐行为形成及其影响因素
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作者 许忠济 石文惠 +4 位作者 杜凤军 白雅敏 徐建伟 任杰 马吉祥 《职业与健康》 CAS 2019年第4期512-515,共4页
目的了解山东省西北地区成年女性减盐行为采纳情况,并对影响其采取减盐行为的因素进行分析,为减盐项目后续开展提供科学依据。方法以山东省省部联合减盐防控高血压项目2016年终末调查数据为基础,选取数据库中山东省西北部地区所有18~69... 目的了解山东省西北地区成年女性减盐行为采纳情况,并对影响其采取减盐行为的因素进行分析,为减盐项目后续开展提供科学依据。方法以山东省省部联合减盐防控高血压项目2016年终末调查数据为基础,选取数据库中山东省西北部地区所有18~69岁常住女性居民与减盐行为有关的数据,通过SAS 9.4软件对数据进行χ2检验和多因素logistic回归分析,了解调查对象减盐行为采纳情况及相关影响因素。结果本次研究共调查女性3 057人,分析结果显示,调查点女性减盐行为采纳率由高至低依次是烹饪少放盐(63.69%)、使用定量盐勺(20.94%)、使用低钠盐(20.31%)和关注营养标签(18.61%)。多因素结果显示,居住地为农村是以上四类减盐行为的不利因素,OR值分别为0.707、0.256、0.344、0.559。除此之外,高收入和体力为主职业分别是烹饪少放盐和使用定量盐勺的保护因素,低龄和高学历则均为使用低钠盐和关注营养标签的保护因素。结论山东省西北地区女性已在烹饪过程中主动采取一定的减盐措施,但仍然需要有针对性的对其干预方式及手段进行调整,进一步减少女性及其家庭的食盐摄入量。 展开更多
关键词 减盐 女性 行为
Rhythm and synchrony in animal movement and communication
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作者 Andrea RAViGNANi 《动物学报:英文版》 SCIE CAS CSCD 2019年第1期77-81,共5页
Introduction Animal communication and motoric behavior develop over time. Often, this temporal dimension has communicative relevance and is organized according to structural patterns. In other words, time is a crucial... Introduction Animal communication and motoric behavior develop over time. Often, this temporal dimension has communicative relevance and is organized according to structural patterns. In other words, time is a crucial dimension for rhythm and synchrony in animal movement and communication. Rhythm is defined as temporal structure at a second-millisecond time scale (Kotz et al. 2018). Synchrony is defined as precise co-occurrence of 2 behaviors in time (Ravignani .2017). 展开更多
关键词 INTRODUCTION ANIMAL motoric BEHAVIOR COMMUNICATIVE RELEVANCE
Empirical Effects of Online Retailing Recommendations 预览
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作者 Hsiaoping Yeh Fenghung Kuo 《心理学研究:英文版》 2019年第2期81-90,共10页
Online recommendation solves the current information overload problem in the online retailing businesses. Given relevant products by adopting recommendation algorithms, online shoppers can save time on searching and b... Online recommendation solves the current information overload problem in the online retailing businesses. Given relevant products by adopting recommendation algorithms, online shoppers can save time on searching and browsing for contents that they are interested in. Hence, in the increasing interests of online retailers, an empirical study was conducted to light the effectiveness of different entitled recommendations reflect on online shoppers. Working with a simulated online shopping establishment, the findings provide online retailers important guidelines regarding online customers’ behaviors. 展开更多
关键词 RECOMMENDER system ONLINE RECOMMENDATION ONLINE SHOPPING CUSTOMER behavior
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关于时间定价 预览
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作者 戚江丹 吴倩 《科教文汇》 2019年第9期189-190,共2页
本文对愈加严重的时间定价情况进行了介绍,提出时间定价的概念及时间定价下的个体的行为表现,简要回顾了时间定价理论的发展情况,指出了影响时间定价的因素,并对时间定价未来的研究方向进行了展望。探讨个体的时间分配效率,对于改善现... 本文对愈加严重的时间定价情况进行了介绍,提出时间定价的概念及时间定价下的个体的行为表现,简要回顾了时间定价理论的发展情况,指出了影响时间定价的因素,并对时间定价未来的研究方向进行了展望。探讨个体的时间分配效率,对于改善现有的一些社会现象具有重要的现实意义。 展开更多
关键词 时间定价 金钱 行为 时间
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