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Effects of KNO_3 pretreatment and temperature on seed germination of Sorbus pohuashanensis

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Journal of Forestry Research 2013年第2期24卷 309-316页

作者： bian lei YANG Ling WANG Jian-an SHEN Hai-long School of Forestry Northeast Forestry University State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University)

We characterized the effects of KNO3 pretreatment and germination temperature on dormancy breaking and germination of mature mountain ash seeds. Seeds treated with KNO3 and germinated at 25 ℃ followed by 5 ℃ had significantly higher germination percentages and germination potentials （51% and 49%, respectively）, compared with controls. These treated seeds also exhibited reduced germination initiation times （minimum of 48 days）, and elevated germination rate indices （up to 97）. The germination of seeds subjected to long-term cold storage （2 years at 0-5 ℃） was also significantly improved by 3 days of 4% KNO3 pretreatment before germinating under a variable temperature regimen （5 ℃ followed by 25 ℃, and followed by 5 ℃）. Germination percentages and germination potentials for these cold-stored seeds reached 67% and 54%, respectively, and the germination rate index increased to 126.99. Pretreatment of mountain ash seeds with KNO3 represents a practical, effective, and pollution-free method for improving germination, and can be implemented easily within a variety of nursery settings.

关键词： Sorbus pohuashanesis seed dormancy seed germination KNO3 pretreatment

SYNTHESIS AND CHARACTERIZATION OF BLUE LIGHT-EMITTING POLY(ARYL ETHER)S CONTAINING PYRIMIDINE-INCORPORATED OLIGOFLUORENE PENDANTS WITH BIPOLAR FEATURE

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Chinese Journal of Polymer Science 2013年第5期31卷 787-797页

作者： Guo-xin Jiang Chun-lei bian 丁军侨王利祥 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences University of the Chinese Academy of Sciences

Novel blue light-emitting poly（aryl ether）s comprising of bipolar oligofluorene pendants as chromophores have been designed and synthesized, in which pyrimidine and arylamine moieties are utilized as the electron acceptor and electron donor, respectively. Through varying n bridge length from monofluorene to bifluorene and end-cappers from hydrogen to carbazole and diphenylamine, the emission color of the resulting polymers covers from deep blue to greenish blue, and their HOMO and LUMO levels can be modulated to facilitate charge injection to improve the device performance. Polymer light- emitting diodes （PLEDs） are fabricated with the device structure of ITO/poly（3,4-ethylenedioxythiophene）：poly（styrene sulfonic acid）（PEDOT：PSS）（50 nm）/polymer （80 nm）/Ca （10 nm）/Al （200 nm）. Among these polymers, P2Cz5F-Py with bifluorene bridge and carbazole end-capper shows excellent trade-off between the efficiency and emission wavelength, having a peak luminous efficiency as high as 1.26 cd/A and Commission Internationale de L＇Eclairage （CIE） coordinates of （0.17,0.17）.

关键词： Poly(aryl ether)s Pyrimidine Oligofluorene Bipolar PLEDs.

Cu-Zn-based alloy/oxide interfaces for enhanced electroreduction of CO_(2) to C_(2+) products

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Journal of Energy Chemistry 2023年第8期83卷 90-97,I0004页

作者： Zi-Yang Zhang Hao Tian lei bian Shi-Ze Liu Yuan Liu Zhong-Li Wang Tianjin Key Laboratory of Applied Catalysis Science&Technology School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

The electrochemical CO_(2)reduction reaction to produce multi-carbon(C_(2+)) hydrocarbons or oxygenate compounds is a promising route to obtain a renewable fuel of high energy ***,producing C_(2+)at high current densities is still a ***,we develop a Cu-Zn alloy/Cu-Zn aluminate oxide composite electrocatalytic system for enhanced conversion of CO_(2)to C_(2+)*** Cu-Zn-Al-Layered Double Hydroxide(LDH) is used as a precursor to decompose into uniform Cu-Zn oxide/Cu-Zn aluminate *** electrochemical reduction,Cu-Zn oxide generates Cu-Zn alloy while Cu-Zn aluminate oxide remains *** alloy and oxide are closely stacked and arranged alternately,and the aluminate oxide induces the strong electron interaction of Cu,Zn and Al,creating a large number of highly active reaction interfaces composed of 0 to+3 valence metal *** the help of the interface effect,the optimized Cu_(9)Zn_(1)/Cu_(0.8)Zn_(0.2)Al_(2)O_(4)catalyst achieves a Faradaic efficiency of 88.5% for C_(2+)products at a current density of 400 mA cm^(-2)at-1.15 V versus reversible hydrogen *** in-situ Raman and attenuate total reflectance-infrared absorption spectroscopy(ATR-IRAS) spectra show that the aluminate oxide at the interface significantly enhances the adsorption and activation of CO_(2)and the dissociation of H2O and strengthens the adsorption of CO intermediates,and the alloy promotes the C-C coupling to produce C_(2+)*** work provides an efficient strategy to construct highly active reaction interfaces for industrial-scale electrochemical CO_(2)RR.

关键词： Electrochemical CO_(2)reduction reaction C_(2+)products Cu-Zn alloy Cu-Zn aluminate oxide Interface

Econometric analysis of China’s GDP growth and industrial structure

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Ecological Economy 2022年第1期18卷 34-41页

作者： bian Xiao-lei School of Business Administration Guizhou University of Finance and EconomicsGuiyang 550025CHINA

Since the Reform and Opening-up in 1978,China’s economy,society and other fields have developed very *** growth has achieved leapfrog development,and the three industries have achieved great development,but the overall industrial structure needs to be *** present,China’s economy has entered the“New Normal”.In order to achieve“Sound and Rapid”economic development,it is imperative to transform the industrial *** econometric analysis and based on China’s economic data from 1978 to 2020,this paper explores the different impacts of three industrial sectors on economic *** it analyzes the internal mechanism of China’s economic *** is concluded that the contribution of the tertiary industry to the national GDP is the largest,the level of secondary industry is medium,and the primary industry is the ***,according to the calculation results,this paper puts forward corresponding suggestions for the optimization of China’s industrial structure,in order to achieve sound and rapid development of the national economy.

关键词： GDP growth industrial structure econometric analysis

(E)-Nerolidol is a volatile signal that induces defenses against insects and pathogens in tea plants

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Horticulture Research 2020年第1期7卷 2152-2166页

作者： Shenglong Chen Liping Zhang Xiaoming Cai Xin Li lei bian Zongxiu Luo Zhaoqun Li Zongmao Chen Zhaojun Xin Tea Research Institute Chinese Academy of Agricultural SciencesHangzhou 310008China Key Laboratory of Tea Biology and Resources Utilization Ministry of AgricultureHangzhou 310008China

Plants release large amounts of volatile organic compounds(VOCs)in response to *** VOCs can serve as volatile signals to elicit defense responses in undamaged tissues and neighboring plants,but many questions about the ecological functions of VOCs remain *** plants are impacted by two harmful invaders,the piercing herbivore Empoasca(Matsumurasca)onukii Matsuda and the pathogen Colletotrichum *** determine the VOC signals in tea,we confirmed CsOPR3 as a marker gene and set up a rapid screening method based on a 1.51 kb CsOPR3 promoter fused with aβ-glucuronidase(GUS)reporter construct(OPR3p::GUS)in *** this screening system,a terpenoid volatile(E)-nerolidol was identified as a potent signal that elicits plant *** early responses triggered by(E)-nerolidol included the activation of a mitogen-activated protein kinase and WRKY,an H2O2 burst,and the induction of jasmonic acid and abscisic acid *** induced plants accumulated high levels of defenserelated chemicals,which possessed broad-spectrum anti-herbivore or anti-pathogen properties,and ultimately triggered resistance against Empoasca onukii and Colletotrichum fructicola in *** propose that these findings can supply an environmentally friendly management strategy for controlling an insect pest and a disease of tea plants.

关键词： volatile defense neighboring

The Moral Model’s Path of Poverty Alleviation--on Ji Juntian,Model Worker of Central Enterprises,Moral Model and Outstanding Party Member of CNPC

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China Oil & Gas 2020年第6期27卷 58-60页

作者： Liu Jinyong bian lei Lang Xinguang 不详

Targeted assistance brings people heart-warming care,so does a person regarded as the ambassador of *** Juntian came to Beijiang Village,Jiahe Town of Taiqian County,a paired county of CNPC in Puyang in poverty alleviation assistance,and served as the resident first Party secretary of the village at a critical point of poverty *** two years of hard work,he led local villagers to shake off poverty and become well-off.

关键词： CNPC Party assistance

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非晶合金的离子辐照效应

物理学报 2017年第17期66卷 330-339页

作者：卞西磊王刚上海大学材料研究所微结构重点实验室上海200444

非晶合金作为一种快速凝固形成的新型合金材料,引起了材料研究者的极大兴趣.微观结构上长程无序、短程有序的特征使其具有独特的物理、化学和力学性能,在许多领域展现出良好的应用前景,尤其是有望成为核反应堆、航空航天等强辐照环境下... 详细信息

非晶合金作为一种快速凝固形成的新型合金材料,引起了材料研究者的极大兴趣.微观结构上长程无序、短程有序的特征使其具有独特的物理、化学和力学性能,在许多领域展现出良好的应用前景,尤其是有望成为核反应堆、航空航天等强辐照环境下的备选结构材料.本文深入探讨非晶合金的辐照效应,主要讨论离子辐照对非晶合金微观结构、宏观力学性能以及其他物理化学性能的影响,可为进一步理解非晶合金的微观结构和宏观力学性能之间的关系提供有效的实验和理论基础,也可为非晶合金在强辐照环境下的服役性能预测提供实验依据,对推进非晶合金这一先进材料的工程化应用具有重要的理论与实际意义.

关键词：非晶合金离子辐照微观结构力学性能

为致用而读:新闻纸在晚清官场的兴起(1861-1890)

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新闻大学 2019年第5期 46-58,118页

作者：卞冬磊南京大学新闻传播学院

本文通过梳理部分'洋务派'官员的日记、奏折和书信,勉力还原1860年代初到1880年代末晚清官员阅读新闻纸的情形。研究发现,1861年总理衙门设立后,新闻纸逐渐参与到中西交涉的多重事务之中。在此期间,除了继续打探西方军事情报以外,晚清... 详细信息

本文通过梳理部分'洋务派'官员的日记、奏折和书信,勉力还原1860年代初到1880年代末晚清官员阅读新闻纸的情形。研究发现,1861年总理衙门设立后,新闻纸逐渐参与到中西交涉的多重事务之中。在此期间,除了继续打探西方军事情报以外,晚清官员在处理贸易、教案、边疆与朝贡国危机等重大事件中,也十分关注新闻纸上的外国动态、国际形势和对中西交涉的评论,并常根据新闻纸报道处理实际事务。本文认为,晚清洋务官员对新闻纸的实用主义心态,是特殊历史脉络的产物。这种阅读方式在甲午以后,让位于报纸的文人论政,为致用而读遂成为历史书写的低音。

关键词：新闻纸阅读官员致用

Effectiveness of traditional chinese medicine nursing intervention on constipation and anxiety in chemotherapy

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Nursing Communications 2024年第10期8卷 1-6页

作者： Ming-Si Fan Hai-lei bian Li Ni Cardiac Intensive Care Unit Shanghai East Hospital of Tongji UniversityShanghai 200120China Operating Theatre Department Shanghai East Hospital of Tongji UniversityShanghai 200120China

Background:In a study conducted from March to September 2021,124 cancer patients undergoing chemotherapy at our hospital were divided into two *** control group received routine inpatient nursing care,while the observation group received Traditional Chinese Medicine(TCM)nursing interventions in addition to routine *** analysis was conducted to compare the incidence of clinical adverse reactions,constipation scores,and changes in anxiety levels between the two *** results showed that the observation group,receiving TCM nursing interventions,had lower incidence of clinical adverse reactions and lower constipation scores compared to the control ***,anxiety levels were found to decrease significantly in the observation group *** findings suggest that incorporating TCM nursing interventions in the care of cancer patients undergoing chemotherapy may help in reducing the occurrence of adverse reactions,alleviating constipation,and managing anxiety *** research is needed to explore the full potential of integrating TCM into conventional nursing care for cancer ***:Following interventions,both groups experienced varying degrees of clinical adverse reactions,with the observation group demonstrating a significantly lower total incidence(29.03%)compared to the control *** disparity was statistically significant(P<0.05).Furthermore,improvements were observed in defecation time(0.53±0.18)points and defecation frequency(1.17±0.25)points *** findings suggest that the intervention had a positive impact on reducing adverse reactions and improving defecation ***:In a recent study,researchers found that individuals in the observation group experienced lower levels of difficulty with defecation and had a more regular defecation form compared to those in the control *** results showed a significant difference in defecation difficulty and form,with the observation g

关键词： chemotherapy cancer TCM syndrome constipation anxiety