期刊文献+
共找到117篇文章
< 1 2 6 >
每页显示 20 50 100
The Application and Effect Evaluation of Corpus Linguistics in English Teaching
1
作者 Lei Yang 《Journal of Contemporary Educational Research》 2024年第7期290-296,共7页
This paper explores the application and effect evaluation of corpus linguistics in English teaching.It first introduces the basic concepts and development history of corpus linguistics,then analyzes its connection wit... This paper explores the application and effect evaluation of corpus linguistics in English teaching.It first introduces the basic concepts and development history of corpus linguistics,then analyzes its connection with language teaching theories,discussing the advantages and challenges of using corpora in language teaching.Next,it delves into the methods and technologies for building and utilizing corpora,as well as their role in developing teaching resources.Lastly,within the framework and methods of teaching effect evaluation,specific application cases of corpus linguistics in teaching design are analyzed,and their effects are assessed.Recommendations for teaching improvement and future development directions are also proposed. 展开更多
关键词 Corpus linguistics English teaching Teaching resource development Corpus language analysis effect evaluation Teaching improvement
下载PDF
Application and effect evaluation on Acknowledge-Introduce-Duration-Explanation-Thank you(AIDET)communication mode in cataract daytime operation nursing 被引量:1
2
作者 Kun Fu Shuping Li Sufen Lu 《Annals of Eye Science》 2020年第2期12-20,共9页
Background:To explore the application effect of Acknowledge-Introduce-Duration-Explanation-Thank you(AIDET)communication mode in reducing anxiety and improving the care services satisfaction of the patients.Methods:Th... Background:To explore the application effect of Acknowledge-Introduce-Duration-Explanation-Thank you(AIDET)communication mode in reducing anxiety and improving the care services satisfaction of the patients.Methods:The 100 cases undergoing cataract daytime operation from February to July 2019 were divided into test group and control group.The test group conducted health education and nursing care for patients during admission,pre-operation,post-operation,and discharge according to the AIDET communication mode.And the control group was given health education and nursing care to the patients according to the traditional way of communication.Results:The difference of the socioeconomic information between these two groups showed no statistical significance.The care services satisfaction score in the test group was statistically higher than that in the control group(P<0.05).The Self-Rating Anxiety Scale(SAS)score in the test group was significantly lower than that in the control group(P<0.01).This result indicated that the patients suffered less anxiety with the AIDET mode of communication.Conclusions:The application of AIDET communication mode to the nursing service of cataract daytime operation can reduce the tension and anxiety of the patients from the treatment and improve their satisfaction to care services. 展开更多
关键词 Acknowledge-Introduce-Duration-Explanation-Thank you communication mode(AIDET communication mode) CATARACT daytime operation nursing effect evaluation
下载PDF
Control Effect Evaluation of 70% Thiamethoxam ZF against Ceratovacuna lanigera Zehntner and Baliathrips serratus Kobus on Sugarcane
3
作者 Li Wenfeng Zhang Rongyue +6 位作者 Huang Yingkun Pu Chunhua Cang Xiaoyan Yin Jiong Luo Zhiming Wang Xiaoyan Shan Hongli 《Plant Diseases and Pests》 CAS 2017年第4期26-29,共4页
[Objective] The paper was to provide scientific basis for popularization and application of 70% Thiamethoxam ZF. [Method] 70% Thiamethoxam ZF was selected and applied in the soil for controlling Ceratovacuna lanigera ... [Objective] The paper was to provide scientific basis for popularization and application of 70% Thiamethoxam ZF. [Method] 70% Thiamethoxam ZF was selected and applied in the soil for controlling Ceratovacuna lanigera Zehntner and Baliathrips serratus Kobus. [ Result ] 70% Thiamethoxam ZF had good con-rol effect against C. lanigera and B. serratus. The optimum dosage of 70% Thiamethoxam ZF was 450 g/hm^2 (effective ingredients 315 g). 70% Thiamethoxam ZF ( dosage per hm^2 ) mixed with the regular fertilizer ( dosage per hm^2 ) should be applied together in sugarcane planting and management from February to June. The control effects against C. lanigera and B. serratus were above 98.4% and 82.9% respectively. The actual yield and sugar content were increased by more than 34 290 kg/hm^2 and 6.8% respectively compared to blank control. [ Conclusion] 70% Thiamethoxam ZF was a new ideal pesticide with characteristics of sustained- release, long-lasting and low-toxic for controlling C. lanigera and B. serratus, and should be applied widely in the sugarcane planting area. 展开更多
关键词 70% Thiamethoxam ZF Convenient and efficient pesticide application Sugarcane pests Control effect evaluation
下载PDF
Effect Evaluation of 50% Chlorantraniliprole FSB against Spodoptera frugiperda
4
作者 Binyan Chen Zhao'er Xie +3 位作者 Taihua Sun Lingying Yang Xu Tang Yuting Chen 《Plant Diseases and Pests》 CAS 2021年第2期17-20,共4页
[Objective]The paper was to understand the control effect of 50% chlorantraniliprole FSB on Spodoptera frugiperda and its influence on corn growth.[Method]Field efficacy test was carried out to comprehensively evaluat... [Objective]The paper was to understand the control effect of 50% chlorantraniliprole FSB on Spodoptera frugiperda and its influence on corn growth.[Method]Field efficacy test was carried out to comprehensively evaluate the safety of 50% chlorantraniliprole FSB on corn growth.[Result]50%chlorantraniliprole FSB had good control effects on S.frugiperda,while corns also had good seedling emergence rate and strong growth at 14 and 20 d post sowing.There were significant difference in yield between treatment area and farmers’governance area,and high benefits had been achieved in treatment area.[Conclusion]The technology is eco-friendly,economical and practical,and can be popularized and applied in large-scale field production. 展开更多
关键词 50%Chlorantraniliprole FSB Spodoptera frugiperda effect evaluation
下载PDF
Research on Tourism Resources Development Pattern Effect Evaluation based on Regression Analysis and Neural Network
5
作者 Yimei Xue 《International Journal of Technology Management》 2016年第8期23-25,共3页
In this paper, we conduct research on the tourism resources development pattern effect evaluation based on regression analysis andneural network. Tourism resources development and the protection of all sorts of the co... In this paper, we conduct research on the tourism resources development pattern effect evaluation based on regression analysis andneural network. Tourism resources development and the protection of all sorts of the contradictions, in the fi nal analysis is the confl ict betweenthe interests of stakeholders. Real life in China, and tourism resources development and protection of the interests of the relevant party basicallyhas the following six parties the local government, investment and the business practice, the original residents, tourists, tourism practitioners, thesocial organization. The survival and the development of general tourism industry is based on the premise of environmental protection, tourismlandscape are carefully protected, let the natural landscape and human landscape form a virtuous cycle, to attract more tourists, promote thesustainable development of scenic spots. Under this basis, this paper proposes the new idea on the issues that is meaningful. 展开更多
关键词 Tourism Resources effect evaluation Regression Analysis Neural Network.
下载PDF
Research Progress in the Effect Evaluation of GLP1-1 Agonists
6
作者 Dongchun Li Yali Wang Xin Liang 《Journal of Clinical and Nursing Research》 2022年第1期22-25,共4页
Glucagon-like peptide-1(GLP-1)promotes insulin secretion,inhibits glucagon secretion,and repairs pancreatic islet cell function to enhance islet cell proliferation and regeneration.Furthermore,it includes a mechanism ... Glucagon-like peptide-1(GLP-1)promotes insulin secretion,inhibits glucagon secretion,and repairs pancreatic islet cell function to enhance islet cell proliferation and regeneration.Furthermore,it includes a mechanism for weight loss and angiocarpy protection.This study covers the comparison of GLP-1 agonists with DPP-4 inhibitors and GLT-2 inhibitors,the mechanism of GLP-1 agonists,and its research possibilities based on a summary of current clinical tests of GLP-1 receptor agonists. 展开更多
关键词 DIABETES GLP-1 receptor agonist effect evaluation Adverse reaction
下载PDF
A LONG TERM EFFECT EVALUATION OF TOTAL HIP PROSTHETIC REPLACEMENT
7
《Chinese Journal of Biomedical Engineering(English Edition)》 1996年第1期43-46,共4页
ALONGTERMEFFECTEVALUATIONOFTOTALHIPPROSTHETICREPLACEMENTWangJianandHeZhijng(OrthopaedicDepartmentof208thHosp... ALONGTERMEFFECTEVALUATIONOFTOTALHIPPROSTHETICREPLACEMENTWangJianandHeZhijng(OrthopaedicDepartmentof208thHospital,ChangChun,13... 展开更多
关键词 A LONG TERM effect evaluation OF TOTAL HIP TOTAL PROSTHETIC REPLACEMENT
下载PDF
Environment Restricts and Policy Choice in International Harmonization of Accounting Standards and Effect Evaluation——Evidence from the Non-monetary Transaction
8
作者 Jianxin Wang 《Journal of Modern Accounting and Auditing》 2005年第2期7-15,53,共10页
The paper tests accounting earnings quality of the non-monetary transaction standard before and after the revision, and comes to the conclusion that the standard revision under domestic conditions which restricts the ... The paper tests accounting earnings quality of the non-monetary transaction standard before and after the revision, and comes to the conclusion that the standard revision under domestic conditions which restricts the use of fair value and does not recognize exchange revenues effectively prevents the company from managing earnings to improve earnings quality. The earnings management of the public companies has become more difficult, and earnings quality has been improved. But the earnings management of the public company does not decrease, some public companies make earnings management by other ways, The researcher provides direct evidence in explaining environment restricts have a role in accounting internationalization, explaining the difficulties of standard-making. 展开更多
关键词 accounting internationalization environment restricts policy choice evaluating effect
下载PDF
Full-domain collaborative deployment method of multiple interference sources and evaluation of its deployment effect
9
作者 Yue Wang Fuping Sun +2 位作者 Xian Wang Jinming Hao Kai Xiao 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第2期572-595,共24页
This paper realizes the full-domain collaborative deployment of multiple interference sources of the global satellite navigation system(GNSS)and evaluates the deployment effect to enhance the ability to disturb the at... This paper realizes the full-domain collaborative deployment of multiple interference sources of the global satellite navigation system(GNSS)and evaluates the deployment effect to enhance the ability to disturb the attacker and the capability to defend the GNSS during navigation countermeasures.Key evaluation indicators for the jamming effect of GNSS suppressive and deceptive jamming sources are first created,their evaluation models are built,and their detection procedures are sorted out,as the basis for determining the deployment principles.The principles for collaboratively deploying multi-jamming sources are developed to obtain the deployment structures(including the required number,structures in demand,and corresponding positions)of three single interference sources required by collaboratively deploying.Accordingly,simulation and hardware-in-loop testing results are presented to determine a rational configuration of the collaborative deployment of multi-jamming sources in the set situation and further realize the full-domain deployment of an interference network from ground,air to space.Varied evaluation indices for the deployment effect are finally developed to evaluate the deployment effect of the proposed configuration and further verify its reliability and rationality. 展开更多
关键词 Jamming effect Multiple interference sources Collaborative deployment effect evaluation Defense capability
下载PDF
Evaluation and Application of Flowback Effect in Deep Shale Gas Wells
10
作者 Sha Liu Jianfa Wu +2 位作者 Xuefeng Yang Weiyang Xie Cheng Chang 《Fluid Dynamics & Materials Processing》 EI 2024年第10期2301-2321,共21页
The pivotal areas for the extensive and effective exploitation of shale gas in the Southern Sichuan Basin have recently transitioned from mid-deep layers to deep layers.Given challenges such as intricate data analysis... The pivotal areas for the extensive and effective exploitation of shale gas in the Southern Sichuan Basin have recently transitioned from mid-deep layers to deep layers.Given challenges such as intricate data analysis,absence of effective assessment methodologies,real-time control strategies,and scarce knowledge of the factors influencing deep gas wells in the so-called flowback stage,a comprehensive study was undertaken on over 160 deep gas wells in Luzhou block utilizing linear flow models and advanced big data analytics techniques.The research results show that:(1)The flowback stage of a deep gas well presents the characteristics of late gas channeling,high flowback rate after gas channeling,low 30-day flowback rate,and high flowback rate corresponding to peak production;(2)The comprehensive parameter AcmKm1/2 in the flowback stage exhibits a strong correlation with the Estimated Ultimate Recovery(EUR),allowing for the establishment of a standardized chart to evaluate EUR classification in typical shale gas wells during this stage.This enables quantitative assessment of gas well EUR,providing valuable insights into production potential and performance;(3)The spacing range and the initial productivity of gas wells have a significant impact on the overall effectiveness of gas wells.Therefore,it is crucial to further explore rational well patterns and spacing,as well as optimize initial drainage and production technical strategies in order to improve their performance. 展开更多
关键词 Deep shale gas flowback characteristic EUR forecast effect evaluation main controlling factors
下载PDF
Evaluation of the effectiveness of preventive nursing measures for pressure injuries in patients in the neurology intensive care unit
11
作者 Rong Zhang Peng-Xin Ma Juan-Juan Zhang 《World Journal of Clinical Cases》 SCIE 2024年第19期3807-3814,共8页
BACKGROUND Patients in neurology intensive care units(ICU)are prone to pressure injuries(PU)due to factors such as severe illness,long-term bed rest,and physiological dysfunction.PU not only causes pain and complicati... BACKGROUND Patients in neurology intensive care units(ICU)are prone to pressure injuries(PU)due to factors such as severe illness,long-term bed rest,and physiological dysfunction.PU not only causes pain and complications to patients,but also increases medical burden,prolongs hospitalization time,and affects the recovery process.AIM To evaluate and optimize the effectiveness of pressure injury prevention nursing measures in neurology ICU patients.METHODS A retrospective study was conducted,and 60 patients who were admitted to the ICU of the Department of Neurology were selected and divided into an observation group and a control group according to the order of admission,with 30 people in each group.The observation group implemented pressure injury prevention and nursing measures,while the control group adopted routine care.RESULTS Comparison between observation and control groups following pressure injury prevention nursing intervention revealed significantly lower incidence rates in the observation group compared to the control group at 48 h(8.3%vs 26.7%),7 d(16.7%vs 43.3%),and 14 d(20.0%vs 50.0%).This suggests a substantial reduction in pressure injury incidence in the observation group,with the gap widening over time.Additionally,patients in the observation group exhibited quicker recovery,with a shorter average time to get out of bed(48 h vs 72 h)and a shorter average length of stay(12 d vs 15 d)compared to the control group.Furthermore,post-intervention,patients in the observation group reported significantly improved quality of life scores,including higher scores in body satisfaction,feeling and function,and comfort(both psychological and physiological),indicating enhanced overall well-being and comfort following the implementation of pressure injury prevention nursing measures.CONCLUSION Implementing pressure injury preventive care measures for neurology ICU patients will have better results. 展开更多
关键词 Neurology intensive care units Pressure injury Preventive care effect evaluation Optimization research Prognostic effect
下载PDF
Application and effect evaluation of behavioral cognitive training in group psychological counseling for workplace people
12
作者 Zheng Wenbin Huang Jingxian Zheng Qingyuan 《Modern General Practice》 2024年第1期19-22,共4页
The purpose of this study is to explore the application and effect of behavioral cognitive training in group psychological counseling in the workplace.Based on the explanation of behavioral cognition theory,combined w... The purpose of this study is to explore the application and effect of behavioral cognitive training in group psychological counseling in the workplace.Based on the explanation of behavioral cognition theory,combined with the psychological characteristics and needs of the workplace population,the paper designs and implements a targeted group psychological counseling program,and analyzes the effects of counseling with a variety of evaluation methods.The results show that behavioral cognitive training has a significant effect,which provides a theoretical basis and practical reference for workplace mental health intervention. 展开更多
关键词 The working population Group psychological counseling Behavioral cognitive training effect evaluation
原文传递
English Teaching Strategy Research and Effect Evaluation Based on Deep Learning in Intelligent Environment
13
作者 Liuxin Gao 《IJLAI Transactions on Science and Engineering》 2024年第4期28-33,共6页
In university English teaching,the integration of deep learning and wisdom classroom is very important to improve students’English thinking ability.The article first explains the connotation and correlation of deep l... In university English teaching,the integration of deep learning and wisdom classroom is very important to improve students’English thinking ability.The article first explains the connotation and correlation of deep learning and smart classroom.Then,it puts forward how to promote students’deep participation and thinking in college English teaching through the establishment of wisdom teaching objectives,the creation of teaching situations,the design of teaching activities and the development of teaching evaluation.It aims to build an efficient college English wisdom classroom and promote the development of students’comprehensive English ability.In order to test whether intelligent teaching environment and deep learning model can effectively improve the traditional college English teaching model:Students have low sense of learning,low ability of knowledge transfer and application,and low ability to deal with practical problems,improve teaching quality and efficiency,build college English in-depth classroom teaching mode based on intelligent teaching environment,and course teaching implementation process,and take a college English course as a sample to conduct a unit teaching quasi-experiment and effect evaluation. 展开更多
关键词 English teaching deep learning effect evaluation
原文传递
Prevention and Control Strategies of Nosocomial Infection and Effectiveness Evaluation in a Tertiary Teaching Hospital during the Epidemic of COVID-19 被引量:1
14
作者 Minfang Wang Wenyi Ye +7 位作者 Zhe Han Lu Yang Dawei Huang Xuxia Yu Yuexian Zhu Shuangying Huang Ying Yang Tieer Gan 《Advances in Infectious Diseases》 CAS 2024年第1期233-247,共15页
Objective: To evaluate the role of prevention and control strategies for nosocomial infection in a tertiary teaching hospital during the sudden outbreak of Corona Virus Disease 2019 (COVID-19). Methods: The hospital i... Objective: To evaluate the role of prevention and control strategies for nosocomial infection in a tertiary teaching hospital during the sudden outbreak of Corona Virus Disease 2019 (COVID-19). Methods: The hospital initiated an emergency plan involving multi-departmental defense and control. It adopted a series of nosocomial infection prevention and control measures, including strengthening pre-examination and triage, optimizing the consultation process, improving the hospital’s architectural composition, implementing graded risk management, enhancing personal protection, and implementing staff training and supervision. Descriptive research was used to evaluate the short-term effects of these in-hospital prevention and control strategies. The analysis compared changes in related evaluation indicators between January 24, 2020 and February 12, 2020 (Chinese Lunar New Year’s Eve 2020 to lunar January 19) and the corresponding lunar period of the previous year. Results: Compared to the same period last year, the outpatient fever rate increased by 1.85-fold (P P Conclusion: The nosocomial infection prevention and control strategies implemented during this specific period improved the detection and control abilities for the COVID-19 source of infection and enhanced the compliance with measures. This likely contributed significantly to avoiding the occurrence of nosocomial infection. 展开更多
关键词 Corona Virus Disease 2019 Nosocomial Infection Prevention and Control Strategy effectiveness evaluation
下载PDF
Contribution of the MERISE-Type Conceptual Data Model to the Construction of Monitoring and Evaluation Indicators of the Effectiveness of Training in Relation to the Needs of the Labor Market in the Republic of Congo
15
作者 Roch Corneille Ngoubou Basile Guy Richard Bossoto Régis Babindamana 《Open Journal of Applied Sciences》 2024年第8期2187-2200,共14页
This study proposes the use of the MERISE conceptual data model to create indicators for monitoring and evaluating the effectiveness of vocational training in the Republic of Congo. The importance of MERISE for struct... This study proposes the use of the MERISE conceptual data model to create indicators for monitoring and evaluating the effectiveness of vocational training in the Republic of Congo. The importance of MERISE for structuring and analyzing data is underlined, as it enables the measurement of the adequacy between training and the needs of the labor market. The innovation of the study lies in the adaptation of the MERISE model to the local context, the development of innovative indicators, and the integration of a participatory approach including all relevant stakeholders. Contextual adaptation and local innovation: The study suggests adapting MERISE to the specific context of the Republic of Congo, considering the local particularities of the labor market. Development of innovative indicators and new measurement tools: It proposes creating indicators to assess skills matching and employer satisfaction, which are crucial for evaluating the effectiveness of vocational training. Participatory approach and inclusion of stakeholders: The study emphasizes actively involving training centers, employers, and recruitment agencies in the evaluation process. This participatory approach ensures that the perspectives of all stakeholders are considered, leading to more relevant and practical outcomes. Using the MERISE model allows for: • Rigorous data structuring, organization, and standardization: Clearly defining entities and relationships facilitates data organization and standardization, crucial for effective data analysis. • Facilitation of monitoring, analysis, and relevant indicators: Developing both quantitative and qualitative indicators helps measure the effectiveness of training in relation to the labor market, allowing for a comprehensive evaluation. • Improved communication and common language: By providing a common language for different stakeholders, MERISE enhances communication and collaboration, ensuring that all parties have a shared understanding. The study’s approach and contribution to existing research lie in: • Structured theoretical and practical framework and holistic approach: The study offers a structured framework for data collection and analysis, covering both quantitative and qualitative aspects, thus providing a comprehensive view of the training system. • Reproducible methodology and international comparison: The proposed methodology can be replicated in other contexts, facilitating international comparison and the adoption of best practices. • Extension of knowledge and new perspective: By integrating a participatory approach and developing indicators adapted to local needs, the study extends existing research and offers new perspectives on vocational training evaluation. 展开更多
关键词 MERISE Conceptual Data Model (MCD) Monitoring Indicators evaluation of Training effectiveness Training-Employment Adequacy Labor Market Information Systems Analysis Adjustment of Training Programs EMPLOYABILITY Professional Skills
下载PDF
Research on the Effect Evaluation of Protected Space Driving New Technologies Industrialization from the Perspective of ST 被引量:8
16
作者 LIU Yixin OU Chunyao +1 位作者 ZHANG Guangyu LIANG Xiao 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2020年第2期475-509,共35页
Based on the perspective of sustainability transitions(ST)theory,the paper dissects the opera-tional mechanisms of protected space driving emerging technology industrialization from an external system perspective,whic... Based on the perspective of sustainability transitions(ST)theory,the paper dissects the opera-tional mechanisms of protected space driving emerging technology industrialization from an external system perspective,which is on the basis of defining essential characteristics and func-tional attributes of protected space.Meanwhile,it structures a three-dimensional evaluation model of protected space from the perspective of internal mechanism by introducing the policy mixes method.Finally,taking the Chinese New Energy Vehicle(NEV)industry as the example and using the system dynamics modeling method,the paper designs different simulation schemes from three dimensions of horizontal evolution trend,three types of policy instrument change and policy mixes of protected space,to predict and analyze the operation effect of protected space.The results show that the Chinese NEV industry is in the stage of market niche entry,and corresponding measures should be taken to increase the market scale,form effective demand and scale effect,and promote the diffusion of market niche;the effect of policy mixes is better than that of the single policy instrument;specific policy mixes should be adopted to develop simultaneously from both the supply and demand sides to improve the industrialization level of NEV. 展开更多
关键词 effect evaluation emerging technology industrialization policy mixes protected space sustainability transitions
原文传递
Evaluation and Effect of Agro-meteorological Disasters on Agricultural Production in Liaoning Province 被引量:1
17
作者 李晶 吕志红 +2 位作者 林蓉 张海娜 刘晓梅 《Meteorological and Environmental Research》 CAS 2010年第11期49-52,共4页
Based on statistic data of agricultural production and meteorological disasters in Liaoning Province from 1971 to 2008,the effect weight,disaster rate and variance value of main agro-meteorological disasters including... Based on statistic data of agricultural production and meteorological disasters in Liaoning Province from 1971 to 2008,the effect weight,disaster rate and variance value of main agro-meteorological disasters including drought,flood,wind,hail and frozen injury were calculated,and the variation characteristic of time series of agro-meteorological disasters was further analyzed,while the grade division and comprehensive evaluation of agro-meteorological disasters were carried out in our paper.The results showed that there was a negative correlation between grain yield and the degree of agro-meteorological disasters,and agro-meteorological disasters were relatively serious in 1989,1997 and 2000,with the reduction of grain yield.Meanwhile,the occurrence frequency of light disasters was highest,accounting for 39% of total years,and the adverse effect of agro-meteorological disasters on agricultural production became more and more severe decade by decade;the effect weight of drought reached 63%,so drought was the main agro-meteorological disaster influencing agricultural production. 展开更多
关键词 Agro-meteorological disaster Agricultural production evaluation and effect LIAONING China
下载PDF
Evaluation of Control Effects against Sugarcane Pests:A New Sustained-release and Long-lasting Pesticide and Convenient and Efficient Pesticide Application Technology 被引量:1
18
作者 Li Wenfeng Pu Chunhua +5 位作者 Zhang Rongyue Yin Jiong Luo Zhiming Shan Hongli Wang Xiaoyan Huang Yingkun 《Plant Diseases and Pests》 CAS 2017年第5期11-14,共4页
[Objective]The paper was to screen a new ideal sustained-release,long-lasting and low-toxic pesticide and convenient and efficient pesticide application technology for controlling Ceratovacuna lanigera and Baliathrips... [Objective]The paper was to screen a new ideal sustained-release,long-lasting and low-toxic pesticide and convenient and efficient pesticide application technology for controlling Ceratovacuna lanigera and Baliathrips serratus. [Method]2% Imidacloprid GR were selected and applied in the soil for field efficacy trial. [Result] The optimum dosage of 2% imidacloprid GR was 30 kg/hm^2( active ingredient 600 g),which can be mixed with fertilizer( 30 kg pesticide and 40-80 kg fertilizer per hm^2) once combined with sugarcane planting management or big ridging during February and June. The control effects against C. lanigera and B. serratus could be more than 98. 2% and 81. 1%,respectively. The actual yield and sugar content in various pesticide treatments were increased by 33 390 kg/hm^2 and 6. 6% respectively compared to blank control. [Conclusion]2% imidacloprid GR has good control effects on C. lanigera and B. serratus. It is a new pesticide with ideal sustained-release,long-lasting and low-toxin effects against C. lanigera and B. serratus. Therefore,it could be used alternatively with other pesticides,to delay production and development of drug resistance. 展开更多
关键词 Sustained-release and long-lasting pesticide Convenient and efficient pesticide application Sugarcane pests Control effect evaluation
下载PDF
An evaluation method of volume fracturing effects for vertical wells in low permeability reservoirs
19
作者 ZHANG Anshun YANG Zhengming +6 位作者 LI Xiaoshan XIA Debin ZHANG Yapu LUO Yutian HE Ying CHEN Ting ZHAO Xinli 《Petroleum Exploration and Development》 2020年第2期441-448,共8页
To evaluate the fracturing effect and dynamic change process after volume fracturing with vertical wells in low permeability oil reservoirs, an oil-water two-phase flow model and a well model are built. On this basis,... To evaluate the fracturing effect and dynamic change process after volume fracturing with vertical wells in low permeability oil reservoirs, an oil-water two-phase flow model and a well model are built. On this basis, an evaluation method of fracturing effect based on production data and fracturing fluid backflow data is established, and the method is used to analyze some field cases. The vicinity area of main fracture after fracturing is divided into different stimulated regions. The permeability and area of different regions are used to characterize the stimulation strength and scale of the fracture network. The conductivity of stimulated region is defined as the product of the permeability and area of the stimulated region. Through parameter sensitivity analysis, it is found that half-length of the fracture and the permeability of the core area mainly affect the flow law near the well, that is, the early stage of production;while matrix permeability mainly affects the flow law at the far end of the fracture. Taking a typical old well in Changqing Oilfield as an example, the fracturing effect and its changes after two rounds of volume fracturing in this well are evaluated. It is found that with the increase of production time after the first volume fracturing, the permeability and conductivity of stimulated area gradually decreased, and the fracturing effect gradually decreased until disappeared;after the second volume fracturing, the permeability and conductivity of stimulated area increased significantly again. 展开更多
关键词 volume fracturing fracturing effect evaluation fracturing area CONDUCTIVITY low permeability reservoir vertical well
下载PDF
Assessing target optical camouflage effects using brain functional networks:A feasibility study
20
作者 Zhou Yu Li Xue +4 位作者 Weidong Xu Jun Liu Qi Jia Jianghua Hu Jidong Wu 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第4期69-77,共9页
Brain functional networks model the brain's ability to exchange information across different regions,aiding in the understanding of the cognitive process of human visual attention during target searching,thereby c... Brain functional networks model the brain's ability to exchange information across different regions,aiding in the understanding of the cognitive process of human visual attention during target searching,thereby contributing to the advancement of camouflage evaluation.In this study,images with various camouflage effects were presented to observers to generate electroencephalography(EEG)signals,which were then used to construct a brain functional network.The topological parameters of the network were subsequently extracted and input into a machine learning model for training.The results indicate that most of the classifiers achieved accuracy rates exceeding 70%.Specifically,the Logistic algorithm achieved an accuracy of 81.67%.Therefore,it is possible to predict target camouflage effectiveness with high accuracy without the need to calculate discovery probability.The proposed method fully considers the aspects of human visual and cognitive processes,overcomes the subjectivity of human interpretation,and achieves stable and reliable accuracy. 展开更多
关键词 Camouflage effect evaluation Electroencephalography(EEG) Brain functional networks Machine learning
下载PDF
上一页 1 2 6 下一页 到第
使用帮助 返回顶部