对农光互补电站在我国发展经历的三个阶段进行了分析,其发展趋势正由提升发电效率、增加农作物产量向逐步丰富农光种类、逐步综合各类产业协同发展的方向转型.辨识和分析农光互补电站在工程建设和运行阶段的危险点,针对地质灾害、高影响天气造成人员伤亡、建(构)筑物坍塌,基建和安装过程中发生高处坠落、物体打击、触电、机械伤害、爆炸中毒,运行维护期间发生火灾、触电、电网波动等安全风险,结合近年发生的相关事故案例开展分析总结,提出工程选址应充分考虑地质灾害、高影响天气可能造成的后果、增强安全生产事故应急处置能力、重视教育培训、提升巡检效能、做实现场安全管控、提高设备本质安全水平等安全生产措施和建议.

高校《皮肤性病学》图片丰富,可通过看图识病,但仍有部分内容复杂难记,教师教授负担较重.近年来,本教研室尝试将教学、考试、考核中的难点与重点内容,如皮肤生理功能、原发性皮疹、继发性皮疹、系统性红斑狼疮诊断标准、局限性硬皮病分型及寻常型痤疮分型等,利用文学创作中的押韵方法 ,创作出歌诀,并应用于教学中.本研究对每个歌诀都进行了详细的解释与说明,避免产生歧义.结果 显示,歌诀教学方法 的创新与应用,活跃了课堂气氛,帮助学生理解与记忆教材中的部分重点、难点与考点知识,获得了学生与教师的好评,也促进了教师的教学能力及文学创作能力的提高.

为优化设备冷却水系统水质异常解决方案,减少费用支出,精简操作流程,本研究结合设备冷却水系统的实地布局,提出了带压串洗设备冷却水系统的方案.一方面,运用补水驳运泵维持系统压力并向系统补充合格冷却水.另一方面,利用应急设备冷却水系统管路,将不合格冷却水排出,并通过便携式多参数分析仪监测系统冷却水的电导率变化情况.试验结果表明,在整个串洗过程,系统内电导率变化明显,顺利降到警戒值以下.因此,本试验系统采用的带压串洗设备冷却水系统的方法能够用于解决设备冷却水水质异常的问题.

为研究浙北桐乡地区梨锈病的发生规律、防治适期,筛选有效药剂,特开展桧柏上冬孢子角形成和成熟监测、不同时间施药的药效、8种药剂田间防治效果比较等试验.结果表明,冬孢子角的成熟高峰期在3月中旬;梨锈病的防治适期为3月下旬开始的前2次降雨的雨前;80％代森锰锌WP 500倍、30％唑醚·戊唑醇SC 800倍和10％苯醚甲环唑WG 800倍对品种玉冠和翠冠上的Ⅰ类芽叶上梨锈病的防治效果分别为89.62％、99.46％、99.38％和89.62％、96.90％、88.53％;Ⅱ类芽上叶与Ⅰ类芽上叶相似,但80％代森锰锌WP 500倍防治效果增加.3种药剂都可以很好地防治梨锈病,但结合不同药剂对果实品质的影响,10％苯醚甲环唑WG800倍最佳.梨锈病的防治最关键的还是要掌握好防治适期,前两次雨为关键时期且雨前防治为最佳.

As a traditional principle, conservatism principle is also known as prudence principle. It refers to the fact that in the market economy, due to the great risks and uncertainties the economic activities of enterprises are faced with, the conservatism principle generally summarized as “expecting possible loss, but not expecting possible income” is usually upheld by enterprises. As it is reflected in the accounting treatment, we ought to hold a conservative attitude （cautious attitude） towards the recognition of revenue, expense or loss. Specifically, possible losses or liabilities should be fully estimated, while possible revenues or gains should not be generally recognized, or must be estimated with great care. Accounting conservatism was first proposed by Basu in 1997 from the perspective of empirical study. Since then, the definition of accounting conservatism has been gradually accepted by scholars and constantly revised in practice. Accounting conservatism requires enterprises to be more cautious when facing good news than when facing bad news, that is, they should not underestimate assets or earnings, nor underestimate liabilities and expenses. Independent directors with accounting background can reasonably use their professional judgment to measure the degree of conservatism of accounting recognition. This paper examines the network contagion effect of accounting conservatism from the perspective of the chain phenomenon of independent directors with accounting background. Based on the relevant data of listed companies in Shanghai and Shenzhen A-shares in China from 2004 to 2017, it finds that, due to the concurrent appointment of independent directors with accounting background, the accounting conservatism of interlock companies share similarities （that is the contagious effect of account）, that is, when different companies have the same directors, accounting conservatism between companies share a certain numerical similarity, and the higher the network centrality of directors is, the more significant the contagious effect is. Through further research, we find that the contagious effect is obvious in areas with high level of marketization, the possible reason is that the regions with high marketization level have higher efficiency of information transmission, so companies in such environment are also more sensitive to the processing and feedback of heterogeneous information; The contagious effect of state-owned enterprises is significantly larger than that of non-state-owned enterprises, the possible reason is that the diversified management of private enterprises weakens the contagious effect caused by the chain of directors. From the perspective of sociology, this paper uses the network centrality to measure the degree of director interlocks, which enriches the related researches on corporate governance from a network perspective. In fact, there are a lot of paths between directors for information transmission. However, limited by data sources, our research cannot obtain and quantify all the social relations of each director, nor can it accurately investigate all the channels of information transmission among directors. In future research work, the other similar characteristics between companies caused by board interlocks can be further researched.

自2019年1月1日起,高等院校正式实施新政府会计制度.双基础、 双功能、 双报表及平行记账核算模式的引入对高等院校信息化财务管理建设提出了新的意见.文章从新政府会计制度改革对高等院校财务管理的影响进行研究,同时对高等院校财务管理信息化建设提出了建议,以便高校可以尽快适应和落实新政府会计制度,并希望本研究能为高校日后的财务管理提供一些新思路.

The paper aims to explore artistic characteristics of Hui-style furniture and its enlightenment to modern furniture design. From style characteristics, themes, materials, decorative techniques and cultural connotations of Hui-style furniture, the feasibility of applying the artistic features of Hui-style furniture to modern furniture design was discussed. This paper analyzed the traditional Confucian ideology of Hui-style furniture, the Confucian complex of Huizhou merchants, and the role of literati in Xin'an Painting School and Hui-style carving artisans. It combined making material, making process, subject matter content and decorative techniques of Hui-style furniture, and summarized its enlightenment and reference to modern furniture design. Hui-style furniture is full of profound Chinese traditional cultural connotation and unique regional characteristics of artistic value, which embodies the humanistic feelings and cultural implications that play a positive reference role in design of modern furniture. On the basis of inheritance and innovation, we should learn from the positive elements of Hui-style furniture and make rational use of it in modern furniture design.

通过实地采访养殖户和问卷调查的方式对广西沿海三市(北海、钦州、防城港)南美白对虾养殖状况进行调查,了解影响南美白对虾产业发展的关键因素,为相关部门制定对虾产业发展科技规划提供参考.调查主要内容:养殖户的基本情况、养殖面积、养殖方式、种苗及饲料来源、产量及经济效益等.调查结果显示,广西对虾养殖以土塘单养为主,有向虾鱼生态混养方向发展的趋势;从业人员教育程度偏低,老龄化严重,专业技能欠缺严重,对动保产品和高端料认知不足;对虾苗种质量不稳定,严重影响了广西对虾养殖.建议要加强对育种和成虾养殖的监控,结合企业提高养殖户的理念和水平,病害防治技术等,同时推广北方工厂化养殖模式本土化落地,促进广西对虾养殖更快更好地发展.

在某型飞机飞行过程中,其燃油系统因液动控制活门关闭过程产生水锤效应,导致剧烈噪声并引发管路振动,严重影响飞行安全.通过分析系统工作原理并进行仿真计算后,提出调低射流传感器响应频率、降低活门匹配腔压力、缩小管路通径等方案解决了此问题.研究结果可以为液动控制活门系统水锤问题的解决及飞机燃油系统设计优化提供指导和借鉴.

A Rh-catalyzed reaction of silacyclobutanes (SCBs) with unactivated alkynes has been developed to form silacyclohexenes with high chemoselectivity. Good enantioselectivity at the stereogenic silicon center was achieved using a chiral phosphoramidite ligand. The resulting silacyclohexenes are useful scaffolds for synthesizing structurally attractive silacyclic compounds.

为期三天的世界公关论坛大会24日在挪威奥斯陆落下帷幕,中国公关行业广阔发展前景成为与会者关注焦点. 大会主办方全球公共关系与沟通管理联盟主席何塞贝拉斯科高度评价中国公关行业的发展前景.他指出,中国市场正在高速发展,中国公司需要在国内外打造强大的品牌,这给公关行业带来很多机会.同时,中国的发展也给世界提供了学习的机会,各国相互合作将进一步提高世界公共关系行业的水平.

Using a combination of field surveys and long-term monitoring methods, by taking three different afforestation modes (M1:coniferous species+ precious broad-leaved species mixed forest mode, M2:precious broad-leaved species mixed forest mode, M3:coniferous species+ general broad-leaf species mixed forest mode)in Pingjiang county as the research object with different modes water conservation function of forest system as a whole. (1)In the monitoring period,the research results showed that there is little difference among forest stands in shrub-grass layer water holding capacity of in the afforestation mode.he afforestation mode M3 has the maximum shrub-grass layer water holding capacity of 3.514 mm, while M1 is the minimum of 3.43 mm, between which there is a difference of 0.084 mm. (2)The litter water-holding capacities of forest stands in the afforestation mode are signiifcantly different, M3 has the maximum litter water-holding capacity in the afforestation mode of 14 mm, while the minimum is M1 of 6.65 mm. (3)There is a signiifcant difference in the water storage capacity between M3 and M1 and between M3 and M2 in the afforestation mode, while the difference between M1 and M2 is not so signiifcant. For the woodland in the afforestation mode and the reference CK1, except that M3 is quite different, the others are insigniifcantly different, and its descending order is as follows: precious broadleaf M3 (20.740 mm)> coniferous + precious broadleaf M2 (17.280 mm)> coniferous + general broadleaf M1 (16.170 mm).(4)The descending order of the total stand water conservation capacity in the afforestation mode was as follows: M3 (992.042 mm)> M2 (821.091 mm)> M1 (792.621 mm)> CK1 (668.990 mm). And water conservation capacity of M3 is relatively high up to 992.042 mm accounting for about 75% of the annual rainfall, which was mainly due to its abundant composition, relatively high understory shrub, herb cover, and litter reserves. water conservation capacity in the new afforestation mode was not high, wherein M1 had worst water conservation capacity with merely 792.621 mm mainly resulting from fully soil preparation for afforestation since fully soil preparation for afforestation caused a signiifcant reduction in ground cover and signiifcant increase of bare ground, destroyed structures and functions of the shrub-grass layer and litter layer, and severely reduced the water conservation capacity of the shrub-grass layer and the litter layer. The water conservation capacity of each mode in the afforestation mode was slightly stronger than the reference.This study aimed to quantitative analysis of water conservation function in the afforestation model of different sizes for different afforestation models, to provide data support for sustainable development.

国内学者对韦利《论语》英译研究虽然成果斐然,却大多集中于对其翻译风格和翻译水平进行评析,或从文化层面解释大的认知背景对韦利翻译的影响,甚少有学者论及韦利翻译过程中出现各种偏离现象的根本认知动因.本文借助认知语言学识解的相关原则,以韦利《论语》英译过程中出现各种偏离现象为切入点,从辖域、视角和突显的维度考察了译者主体性对原语文本的理解和译文输出的影响,解释了各种偏离产生的深层认知原因.研究表明,认知语言学的基本原理和方法对翻译理论的建设与实践具有很强的借鉴意义.

Objective To modify the purified water analysis methods in the Chinese Pharmacopoeia (Vol .Ⅱ ,Edition 2010) ,and mainly focus on the pH value determination ,analysis of nitrate and nitrite ,and the inspection of microorganism . Methods The usage of regents and colorimetric tubes in the analysis of nitrate and nitrite were inquired ,the feasibility of plat-ing culture used in the inspection of microorganism were proposed ,and the suggestion of using more instrumental analysis in-stead of titrimetric analysis in the purified water inspection wasraised .Results The choice of colormetric apparatus and the precision of the regents were explicit .The plating method was better in convenience and reliability than membrane-filter proce-dure during the microorganism inspection .Instrumental analysis is the trend of purified water inspection and deserved to be rec-ommended .Conclusion Based on our own and others′studies ,the methods of impurity analysis are improved ,which might be accepted in the revision of Chinese Pharmacopoeia in future .

本工作合成了具有D-π-A-π-D对称结构的化合物2,5-双(对二甲氨基苯乙烯基)吡嗪.利用飞秒激光器研究了2,5-双(对二甲氨基苯乙烯基)吡嗪的双光子吸收特性,获得了在820nm处的最大双光子吸收截面(σ=212 GM).荧光发射强度与激发光强平方的线性关系证明了2,5-双(对二甲氨基苯乙烯基)吡嗪的双光子诱导发光机制.

Presently,urban and rural social endowment insurance in China is derived from the "new agricultural insurance"and "City Habitat guarantee",which has realized full coverage,but still has some problems,such as low levels of pension,uneven regional development,lack of scientific growth mechanism,etc..The key to solve these problems is to determine the appropriate pension benefit level and to take measures to adjust the level gradually.Based on life fair demand,for urban and rural social endowment insurance,the moderate benefit level should not be too high nor too low.The floor level is the Engel coefficient standard to meet the basic survival needs, and the ceiling is the necessities of life consumption level to meet the basic survival needs,which can be estimated by 60% of per capita net income of rural residents.This paper propose that the pension should be increased gradually,normal adjustment mechanism should be established,regional gap should be filled by setting a moderate level as the goal,multi-pillar endowment insurance system should be improved to advance the development of urban and rural social endowment insurance in healthy way.