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Copyright of Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Water Conservancy Science & Techonlogy & Economy is the property of Water Conservancy Science & Technology & Economy Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective]To explore the promotion effects of soybean and corn zonal composite planting technology in northern Guizhou, and to provide scientific basis and decision-making reference for grain and oil production in northern Guizhou. [Method]Adopting the‘3+2 pattern’ (3 rows of soybean +2 rows of corn), the soybean and corn strip composite planting technology was popularized in 9 counties (districts) in northern Guizhou Province. [Result] Compared with 2021, the corn yield under soy-corn belt composite planting in northern Guizhou was increased. The maize yield was the highest in Bozhou District, followed by Fenggang County, and Tongzi County was the lowest. The soybean yield was the highest in Fenggang County, followed by Suiyang County, but Zhengan County and Daozhen Autonomous County were lower. The net income was the highest in Bozhou District, followed by Fenggang County, and Tongzi County was lowest. [Conclusion]The zonal soybean and corn composite planting technology could effectively improve the grain and oil production level in the northern Guizhou region, and played a positive role in changing the traditional planting concept, and in promoting farmers’ income and ecological and social benefits. [ABSTRACT FROM AUTHOR]

Jingdian Irrigation Area is a high-lift cross-basin irrigation area with agricultural economy as the main, drought and water shortage have become the main factors restricting the high and stable yield of crops, water-saving irrigation technology has been popularized in Jingdian Irrigation Area reasonable water-saving irrigation can save water improve unilateral water efficiency it is beneficial to promote the intensive and economical utilization of water resources and the construction of water-saving irrigation area. This paper is based on the entropy method, the evaluation system of water-saving irrigation benefit is constructed from the aspects of social economic benefit and ecological environmental benefit, the benefits of different water-saving irrigation modes for the main crops in irrigated areas are analyzed. The results show that the efficiency of efficient water-saving irrigation is generally higher than other irrigation methods drip irrigation is the best water-saving irrigation mode in this area. The evaluation results are basically consistent with the reality, it shows that this method is feasible to evaluate the benefit in irrigated areas, so it has a guiding significance to the comprehensive evaluation of irrigated areas. [ABSTRACT FROM AUTHOR]

Xiaolangdi Reservoir has played a great role in flood control, sediment reduction and profit improvement. This paper systematically analyzed the flood control operation and the function of the Xiaolangdi Reservoir. By analyzing the sediment erosion and sedimentation of the reservoir and the Lower Yellow River, the effect of sediment reduction of the reservoir was proposed. The benefit of flood control and sediment reduction of the reservoir was calculated. The results show that the reservoirs in the middle reaches of the Yellow River can block the flood and cut the peak for 15 times. The average peak cutting rate of Huayuankou Station is 36%, and the maximum peak cutting flow is 7 560 m³/s, which can effectively avoid the flood losses in the downstream beach area. Due to the decrease of sediment load, the sedimentation rate of the reservoir is lower than that in the design stage, and the sediment retention ratio of 1.26 relative to the downstream channel is lower than that of 1.57 in the design sediment retention stage. The sediment reduction effect of the reservoir is better, especially in the reach below the Aishan. According to the 2020 price level, the actual annual benefits of flood control (ice-run prevention) and sediment reduction of the reservoir are 5.927 billion Yuan more than the design value, and the cumulative present value of benefits is 21.873 billion Yuan more than the total investment (including power generation), indicating the economic rationality of the construction of the Yellow River water and sediment regulation backbone project, which provides a successful example for accelerating the construction of Guxian project [ABSTRACT FROM AUTHOR]

[Introduction] The construction of battery energy storage power stations is an inevitable trend in the future. The research aims to learn the economic and operational benefits of battery energy storage power stations under the present battery technologies and peak-valley price policy. [Method] For the grid-side energy storage power stations, the economic benefit index was used as the criterion to measure the economic benefit, and the delayed substation expansion was used to measure the operational benefit. Taking battery energy storage power stations in Dongguan as an example, the direct economic benefits, operational benefits, and other benefits were analyzed. [Result] The results showed that under the present battery technologies and peak-valley price policy, generally the economic benefits of battery energy storage power stations in Dongguan suffered slight loss. Nevertheless, considering other operational benefits of the construction of energy storage power stations, the development of battery energy storage power stations can produce a small profit. [Conclusion] The case study of economic and operational benefits of battery energy storage power stations in Dongguan can provide a reference for the benefit analysis of other battery energy storage power stations of the same type.

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to explore the effects of different organic fertilizers on the agronomic traits and economic benefits of Pseudostellaria heterophylla, the mountainous areas and paddy fields with different soil conditions were selected as the experimental areas, and the differences in plant height and yield after planting Pseudostellaria heterophylla with three kinds of organic fertilizers as the base fertilizers were compared. Then, the economic benefits were also analyzed in combination with the cost. The results showed that; The treatments of Jiangping, Zhongnong and Zhonghua or¬ganic fertilizer could significantly promote the plant height and yield of Pseudostellaria heterophylla planted in the mountainous areas (P<0.05), which were increased by 163.02%, 189. 96% and 122. 70% respectively compared with the control Shima compound fertilizer. However, the plant height and yield of Pseudostellaria heterophylla planted in the paddy field were not significantly promoted (P>0. 05), which were increased by 19. 13%, 7.52% and 24. 37% respectively compared with the control Shima compound fertilizer. The experiment showed that the three kinds of organic fertilizers tested were more suitable for the improvement of mountain soil. According to the ratio of increasing output value to fertilizer input, the cost of Zhongnong organic fertilizer to improve the mountainous area was the lowest, while the cost of Zhonghua organic fertilizer to improve the paddy field was the lowest. [ABSTRACT FROM AUTHOR]

Objective To analyzed the hygienic test and benefit analysis of traditional sterilized hand towel and disposable sterile toilet paper before surgical hand disinfection. Methods From October 2021 to November 2021, the sanitary examination of surgeons and nurses after surgical hand disinfection was selected as the research object, and 100 people were selected according to different professional titles, including 50 doctors and 50 nurses, by self-control method. Control group: in the first week, traditional sterilized hand towels were used for hand-drying, and hygienic tests were performed after surgical hand disinfection. Experimental group: In the second week at the same time, the same people were required to use disposable sterile toilet paper to dry their hands and hygienic tests were performed after surgical hand disinfection. The hygiene and benefits of the two groups were evaluated. Results There was no significant difference in the results of hygienic tests between the two groups. In terms of material cost, the cost of sterilized hand towel was higher than disposable sterile toilet paper. Conclusion The application of disposable sterile toilet paper before surgical hand disinfection has no influence on the hygienic test of surgical hand disinfection, which can effectively reduce operating costs and save manpower in the operating room. (目的 分析外科手消毒前使用传统灭菌擦手毛巾、一次性无菌擦手纸的卫生学检测及效益分析。方法 2021年10月—11月, 参加手术医生、护士外科手消毒操作后的卫生学检验作为研究对象, 采用自身对照的方式, 按不同职称抽取100人, 医生、护士各50人。对照组: 在第1周使用灭菌擦小毛巾干手, 进行外科手消毒后卫生学检测; 实验组: 在第2周同样时间, 同样人群使用一次性无菌擦手纸干手, 然后进行外科手消毒后卫生学检测, 对两组的卫生学和效益进行评价。结果 两组手术人员外科手消毒后卫生学检测结果无显著差异; 材料成本上, 灭菌擦手小毛巾的成本高于一次性无菌擦手纸。结论 外科手消毒前使用一次性无菌擦手纸对外科手消毒卫生学检测无影响, 能有效降低手术室运营成本, 节约人力。)

Copyright of Water Conservancy Science & Techonlogy & Economy is the property of Water Conservancy Science & Technology & Economy Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Southern Energy Construction is the property of Southern Energy Construction Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Medical Equipment Journal is the property of Chinese Medical Equipment Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

From 2018 to 2019, the University of California and the world's largest academic publisher Elsevier have had a two-year negotiation on the open access agreement. In February 2019, the University of California announced that the negotiation finally failed. In April, the University of California signed the first open access agreement in the United States with Cambridge University Press and became the focus of the global open access movement. This case typically reflects not only the urgent desire of the publicization of scientific research achievements but also the active promotion of open access of the scientific community. The article combs in detail and analyzes the complicated benefits of different stakeholders due to different value orientations and interest needs involved in this case such as the UC, Elsevier and Cambridge University Press through a multi-stakeholder interaction analysis method. It is hoped to provide reference and theoretical basis for Chinese universities and research institutions for participating in the global open access movement. [ABSTRACT FROM AUTHOR]

Copyright of Guangdong Architecture Civil Engineering is the property of Guangdong Architecture Civil Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Precise poverty alleviation has entered a decisive period to storm fortifications and overcome difficulties. As one of the precise poverty alleviation projects, photovoltaic (PV) poverty alleviation plays an important role in solving the problem of poverty alleviation. Agricultural informatization construction will enhance the effectiveness of PV poverty alleviation to a greater extent. Taking W County of national poverty-stricken counties as an example, this paper systematically sorts out four typical PV poverty alleviation models in recent years, which are household distributed PV poverty alleviation model, village-level PV poverty alleviation power station model, joint-village PV poverty alleviation power station model and centralized PV poverty alleviation power station model. The detailed comparative analysis of various models’ application scope and characteristics are carried out. Then this paper analyses the comprehensive benefits of PV poverty alleviation in W county. In view of economic benefits, this paper first designs the calculation of total annual power generation of PV poverty alleviation projects, then designs the annual sub-components of total poverty alleviation income, obtains the annual total poverty alleviation calculation method under different models and different objects. In view of ecological benefits, this paper analyzes its ecological benefits from two aspects: Annual energy-saving (ES) & emission-reduction (ER) quantity, environmental value (EV). In view of social benefits, this paper analyses its social benefits from the four perspectives of employment, skills, development and society. Because the evaluation of PV poverty alleviation benefit index is hierarchical and ambiguous, this paper combines analytic hierarchy process and fuzzy comprehensive evaluation method to establish PV poverty alleviation index evaluation model and income distribution method. First step, establish a multi-level comprehensive evaluation index system. Second step, construct a judgment matrix for PV poverty alleviation index. Third step, determine the weights of each index and test consistency. Fourth step, design the criteria for dividing each index and calculate the comprehensive score. Fifth step, calculate the allocation of PV poverty alleviation incomes of poor households. In order to verify the proposed model and method, this paper selects the poor household L, M and N from two different village-level PV poverty alleviation power stations as three examples, calculates their PV poverty alleviation indexes scores, and calculates their income distribution amount. Through comprehensive evaluation of the power indexes, economic indexes, poverty indexes and environmental protection indexes of poor households, the poor household N has higher comprehensive scores and relatively more distributed incomes, but the poor household L increases the overall income through employment income. This distribution of income varies from household to household, eliminating the disadvantages of the average distribution, both stimulating the poverty-reducing power of people with lower incomes and ensuring the labor benefits of people with higher incomes. Based on these three examples studies, the validity and feasibility of the evaluation model and income distribution method proposed in this paper can be verified. At present, PV poverty alleviation still has great potential in improving its benefits and ensuring its sustainable development, this paper finally designs the overall structure of the PV poverty alleviation benefit promotion mechanism from five perspectives: government, power grid companies, investment companies, village collective, poor households, and five levels: technology, development, power, security, management, aiming to provide technical and decision support for PV poverty alleviation projects in poverty-stricken areas in China. [ABSTRACT FROM AUTHOR]

Team is the forefront of scientific research institutes and the most active organizational unit, the effectiveness of team construction is directly related to the sustainable and healthy development of the entire enterprise. According to the characteristics of scientific research institutes, a model of team construction which was highly targeted,innovative and effective,was put forwand.Through the communication industry research institutes and telecom operators of the common and difference analysis, combined with the characteristics of the communications industry research institutes, excellent team construction model was put forward. Various effective measures of implementing outstanding team construction of scientific research institutes were further summed up. Finally, the effectiveness of the model was analyzed, and the results show that the model is effective in improving the train of thought,promoting the strategy execution ability and enhancing the creativity and cohesion of the research team.

Under the pressure of emission reduction of greenhouse gas (GHG) and low-carbon development, biochar has attracted wide attention as a new agricultural carbon-sequestration technology. This paper reports a case study about the carbon sequestration potential and economics of biomass pyrolysis products which are the basis of large-scale development and utilization of biomass resources. The study examines whether biochar can be applied for carbon abatement in Shanxi and to what extent it brings economic benefits using an evaluation method integrating biomass resources, carbon abatement potential and economic benefits. The results show that the three main feed stocks offset about 12.28 million tons of equivalent CO2, which approximately accounts for 2.5% of total carbon emissions in Shanxi in 2014. Biomass resources have positive economic profitability. For example, crop straw and agricultural byproducts are around 8.09 RMB yuan and 21.79 RMB yuan per ton of raw material in terms of average and the highest GHG price in 2014, respectively. The total economic value of the three types of biochar ranges from 43.69 million RMB yuan to 280.10 million RMB yuan, showing the economic feasibility of biochar technique in Shanxi. Further study should focus on characteristic parameters estimation, default value screening, cost fluctuation effects and different utilization approaches to improve the applicability and accuracy of the method. [ABSTRACT FROM AUTHOR]

SPMT ( Self-Propelled Modular Transporter) was employed to transport bulk precasted members, such as cylinders and cover slabs for marine works during the construction of No.2 berth, No.3 berth, and No.4 berth in Yingling Operation Area of Jingu port area in Qinzhou Port. Compared with the traditional air transportation, this method has advantages in saving the construction period, reducing the project cost, and protecting the construction safety, provides an effective guarantee for the smooth implementation of the project. This paper can provide references for transportation of other mass concrete members. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To analyze statistically the data on the charging items in some hospital to determine monitor equipment utilization rate in the nursing unit, so as to provide data support for proposing monitor equipment allocation scheme in the hospital. Methods Totally 571 pieces of monitor equipment were used as the subjects, and the records on the charging items in HIS database were extracted from January 1st 2016 to June 30th 2017. The monitor equipment utilization rates, that is, the daily hours of operation, in the nursing units were calculated, and then were compared and analyzed. Results The allocation of the monitor equipment proved reasonable although pre-purchase demonstration in some nursing units had no enough data support. Conclusion It's feasible to instruct equipment allocation with the utilization rate based on charging items analysis. [ABSTRACT FROM AUTHOR]

[ Objective ] Using pure cassava wastes as raw materials, a medium formula suitable for pleurotus ostreatus cultivation was screened to provide references for the realization of cassava industrial wastes resources. [ Method ]With the routine formula (mulberry sawdust, cotton seed hull and 15.0% wheat bran) as the control, 6 formulas of cassava stalk and cassava bagasse were designed at different ratios. The effects of different formulas of culture medium on Pleurotus ostreatus mycelium growth rate, biological efficiency and production efficiency were re - searched. [ Result ] Different proportions of cassava stalk and cassava bagasse medium exerted different effects on mushroom mycelium growth and biological efficiency. Considering the growth of mushroom mycelium, biotransformation rates and production efficiency, the optimal formula was 52.00% - 6 7 . 0 0% cassava stalk, 30.00%-45.00% cassava bagasse,2.00% lime and 1.00% gypsum. [ Conclusion ]Adding lime and gypsum to reasonable proportion of cassava stalk and cassava bagasse for cultivating Pleurotus ostreatus is beneficial for cassava by-products, environmental protection and Pleurotus ostreatus economic benefits. [ABSTRACT FROM AUTHOR]

Aiming at the large amount of lost of waste heat due to flue gas emission in thermal power plant, this paper expounds the selection basis and utilization characteristics of low boiling point working medium, proposes to generate by the recovered flue gas waste heat through low boiling point working medium, determines the relevant parameters of system through calculation, and analyzes the economy, energy saving capability and environmental protection benefit of the low boiling point working medium power system. The result of analysis shows that generating by low boiling point working medium can not long take the advantage of flue gas waste heat, but effectively save coal and enhance boiler thermal efficiency as well. [ABSTRACT FROM AUTHOR]