Objective:To evaluate the clinical advantages of laparoscopic transverse abdominal wall suspension in treating pelvic organ prolapse.Methods:Sixty patients diagnosed with moderate to severe pelvic organ prolapse and u...Objective:To evaluate the clinical advantages of laparoscopic transverse abdominal wall suspension in treating pelvic organ prolapse.Methods:Sixty patients diagnosed with moderate to severe pelvic organ prolapse and underwent surgical treatment in our hospital between January 2022 and December 2023 were selected.According to different surgical methods,they were divided into an observation group(given laparoscopic transverse abdominal wall suspension)and a control group(given transvaginal mesh implantation),with 30 subjects/group.The data on perioperative-related indicators,quality of life scores,postoperative recurrence,and complications of the two groups of patients were collected.Results:The postoperative hospitalization days and intraoperative bleeding volume of the observation group were significantly lower than those of the control group,but had longer operation time than that of the control group(P<0.05).The differences between the two groups were statistically significant 6 months after surgery,and the Pelvic Floor Disease Quality of Life Impact Questionnaire(PFIQ-7)score of the observation group was significantly higher than the control group(P<0.05).Both groups of patients completed 12 months of follow-up without any postoperative recurrence.The number of complications in the observation group was slightly lower than that of the control group(P>0.05).Conclusion:Laparoscopic transverse abdominal wall suspension was more effective in treating pelvic organ prolapse and is an ideal surgical procedure.展开更多
Based on the advantages of the application of Building Information Modelling(BIM)technology in highway engineering,this paper analyzes the difficulties of its in-depth application,grasps the pain points of the applica...Based on the advantages of the application of Building Information Modelling(BIM)technology in highway engineering,this paper analyzes the difficulties of its in-depth application,grasps the pain points of the application of BIM technology in practice,and approaches from the integration of BIM design-construction.This paper also puts forward the integration of cross-stage information based on the BIM+Geographic Information System(GIS)construction information management system to realize the BIM whole life cycle management,and provides directional support for the continuous and efficient application of BIM technology in engineering practice.展开更多
As important supplementary to major edible oils, comparative chemical advantages of minor edible oils decidetheir development and usage. In this study, chemical composition of 13 kinds of specific edible vegetable oil...As important supplementary to major edible oils, comparative chemical advantages of minor edible oils decidetheir development and usage. In this study, chemical composition of 13 kinds of specific edible vegetable oilswere investigated. The comparative advantages of chemical compositions of these edible oils were obtained asfollows: (1) camellia, tiger nut and almond oil were rich in oleic acid, the contents of which accounted for79.43%, 69.16% and 66.26%, respectively;(2) safflower oil contained the highest content of linoleic acid(76.69%), followed by grape seed (66.85%) and walnut oil (57.30%);(3) perilla seed, siritch, peony seed andherbaceous peony seed oil were rich in α-linolenic acid (59.61%, 43.74%, 40.83% and 30.84%, respectively);(4)the total phytosterol contents of these oils ranged from 91.46 mg/100 g (camellia oil) to 506.46 mg/100 g (siritchoil);and (5) The best source of tocopherols was sacha inchi oil (122.74 mg/100 g), followed by perilla seed oil(55.89 mg/100 g), peony seed oil (53.73 mg/100 g) and herbaceous peony seed oil (47.17 mg/100 g). Thecomparative advantages of these specific edible oils indicated that they possess the high potential nutritionalvalues and health care functions.展开更多
Online Computer Algebra Systems (CAS) have become increasingly popular among students and teachers. The reasons are many such as being more flexible, simple to use, accessible from anywhere, etc. However, as with any ...Online Computer Algebra Systems (CAS) have become increasingly popular among students and teachers. The reasons are many such as being more flexible, simple to use, accessible from anywhere, etc. However, as with any educational tool, they also have some disadvantages that we should know. The purpose of this study is to analyze advantages and disadvantages of online CASs and propose some techniques to optimize CAS performance in order to reduce weaknesses. The research results reveal that online CAS versions are on the rise but lag in some capabilities in comparison with desktop versions.展开更多
This study focuses on the evolution of growth model and cultivation of competitive advantages under the ambidextrous innovation strategy.After a brief introduction of the connotation of ambidextrous innovation strateg...This study focuses on the evolution of growth model and cultivation of competitive advantages under the ambidextrous innovation strategy.After a brief introduction of the connotation of ambidextrous innovation strategy,the evolution of growth model of high-tech enterprises under the conventional strategy and the ambidextrous innovation strategy is analyzed.Furthermore,a discussion is made on how to cultivate enterprises’competitive advantages under the ambidextrous innovation strategy,thereby enabling enterprises to stand out from competitors under this new strategic model and truly achieve the goal of sustainable development.展开更多
Quantum Computing (QC) is hailed as the future of computers. After Google’s claim of achieving Quantum Supremacy in 2019, several groups challenged the claim. Some QC experts attribute catastrophic risks that unrestr...Quantum Computing (QC) is hailed as the future of computers. After Google’s claim of achieving Quantum Supremacy in 2019, several groups challenged the claim. Some QC experts attribute catastrophic risks that unrestrained QC may cause in the future by collapsing the current cryptographic cybersecurity infrastructure. These predictions are relevant only if QC becomes commercially viable and sustainable in the future. No technology can be a one-way ticket to catastrophe, and neither can the definition of superiority of that technology be. If there are catastrophic risks, large-scale QC can never enter the public domain as a minimum viable product (MVP) unless there are safeguards in place. Those safeguards should obviously become an integral part of the definition of its superiority over the legacy systems. NIST (National Institute of Standards & Technology) is pursuing the standardization of Post Quantum Cryptography (PQC) as that safeguard. However, with all the 82 candidate PQCs failing and companies already offering QC as a service, there’s an urgent need for an alternate strategy to mitigate the impending Q-Day threat and render QC sustainable. Our research proposes a novel encryption-agnostic cybersecurity approach to safeguard QC. It articulates a comprehensive definition of an MVP that can potentially set a sustainable gold standard for defining commercially viable quantum advantage over classical computing.展开更多
In English teachinig,the use of multi-media makes a vivid learning atmosphere for students.It can get a better teaching effect in all-around education.Meanwhile,thereare some problems inevitably in this field,leaving ...In English teachinig,the use of multi-media makes a vivid learning atmosphere for students.It can get a better teaching effect in all-around education.Meanwhile,thereare some problems inevitably in this field,leaving for the English teachers to solve.展开更多
With the world globalization, China's communication with other countries has become more frequent. It is in great demand that a large number of college graduates who not only master their major but also do well in...With the world globalization, China's communication with other countries has become more frequent. It is in great demand that a large number of college graduates who not only master their major but also do well in communication in English with English speakers. However, such graduates are scare because the backward teaching method-the Grammar-Traditional Method, cannot meet what the contemporary Chinese society demands. The reforms of the college English teaching are urgent and necessary. This paper first explores the major problems existing in the college English teaching. Furthermore, it introduces the basic theory of the Communicative Approach and analyzes its advantages in college English teaching.展开更多
The phenomena of TL are connected with the defect structures of the atomic lattice of the material concerned, and hence are very sensitive to changes in defection of the country rocks status as induced by the minerali...The phenomena of TL are connected with the defect structures of the atomic lattice of the material concerned, and hence are very sensitive to changes in defection of the country rocks status as induced by the mineralizing solution. In other words, the TL of the country rocks from the mineralized area should be quite different from that in the intact barren area.Besides the high sensitivity as mentioned above, advantages of the application of TL techniques to the mineral exploration the easiness in accessing to proper samples, the easy preparation of samples and the quickness in sample processing all amount to convenience and economy of the techniques, indicating the high competitiveness of the TL mineral exploration method, especially during the development stage of mining operations.展开更多
The development of information technology has changed people's learning methods. Fragmented learning,as an informal learning method,has become an important way to accept new knowledge and learn new technologies. T...The development of information technology has changed people's learning methods. Fragmented learning,as an informal learning method,has become an important way to accept new knowledge and learn new technologies. Through analyzing the connotation,characteristics,and advantages and disadvantages of fragmented learning,this paper came up with reasonable recommendations for fragmented learning. To truly become systematic and holistic knowledge,fragmented knowledge must be explored,understood,integrated and internalized. This paper is expected to play an important guiding role in building a lifelong learning society.展开更多
企业竞争优势依赖于其所生存的环境,金融危机爆发之后的经济下行使装备制造企业竞争优势的来源发生了根本性的改变.通过对辽宁9 家企业的问卷调查,探究了辽宁装备制造企业的竞争优势现状,厘清了竞争优势维度对财务绩效的不同作用,进一...企业竞争优势依赖于其所生存的环境,金融危机爆发之后的经济下行使装备制造企业竞争优势的来源发生了根本性的改变.通过对辽宁9 家企业的问卷调查,探究了辽宁装备制造企业的竞争优势现状,厘清了竞争优势维度对财务绩效的不同作用,进一步研究了竞争优势的提升路径.研究表明:经济下行对企业竞争优势的影响较大;目前竞争优势主要来源于低成本优势和新产品研发优势,但近年来新产品研发得到了较快的发展,而成本优势正在大幅减弱;产品开发、技术资源、软件和市场份额对总资产报酬率影响较大,而成本、与用户信任程度关系、质量和Y R IN技术资源对销售利润率影响较大;产品开发、成本、服务、与用户信任程度和性能是企业需要关注的重点.展开更多
Intercropping of maize(Zea mays L.) and peanut(Arachis hypogaea L.) often results in greater yields than the respective sole crops. However, there is limited knowledge of aboveground and belowground interspecific inte...Intercropping of maize(Zea mays L.) and peanut(Arachis hypogaea L.) often results in greater yields than the respective sole crops. However, there is limited knowledge of aboveground and belowground interspecific interactions between maize and peanut in field. A two-year field experiment was conducted to investigate the effects of interspecific interactions on plant growth and grain yield for a peanut/maize intercropping system under different nitrogen(N) and phosphorus(P) levels. The method of root separation was employed to differentiate belowground from aboveground interspecific interactions. We observed that the global interspecific interaction effect on the shoot biomass of the intercropping system decreased with the coexistence period, and belowground interaction contributed more than aboveground interaction to advantages of the intercropping in terms of shoot biomass and grain yield. There was a positive effect from aboveground and belowground interspecific interactions on crop plant growth in the intercropping system, except that aboveground interaction had a negative effect on peanut during the late coexistence period. The advantage of intercropping on grain came mainly from increased maize yield(means 95%) due to aboveground interspecific competition for light and belowground interaction(61%–72% vs. 28%–39% in fertilizer treatments). There was a negative effect on grain yield from aboveground interaction for peanut, but belowground interspecific interaction positively affected peanut grain yield.The supply of N, P, or N + P increased grain yield of intercropped maize and the contribution from aboveground interspecific interaction. Our study suggests that the advantages of peanut/maize intercropping for yield mainly comes from aboveground interspecific competition for maize and belowground interspecific facilitation for peanut, and their respective yield can be enhanced by N and P. These findings are important for managing the intercropping system and optimizing the benefits from using this system.展开更多
On the analysis of the current learning situation of the students from higher vocational and technical institutions, this paper proposes the way of using original English films in language teaching. It has indicated t...On the analysis of the current learning situation of the students from higher vocational and technical institutions, this paper proposes the way of using original English films in language teaching. It has indicated the advantages of English original films, such as can to motivate the students to learn by their willing, to create real-life, to enlarge students'view and to improve the competence of learning. Especially on dealing with the problems appearing in the learning process in vocational and technical institutions, teaching by English original film is a strongly suggested way.展开更多
Diversification Strategy, or called Multi-operatio ns Strategy, means the strategy taken by enterprises engaging two or more kinds of material or labor products for different economic uses in the same time. It is H.Ig...Diversification Strategy, or called Multi-operatio ns Strategy, means the strategy taken by enterprises engaging two or more kinds of material or labor products for different economic uses in the same time. It is H.Igor Ansoff who was a great economics master famous with his Product-mark et Strategy theory announced in the 1950’s. Coming out of practice of some others, we may draw a conclusion that it looks li ke each of enterprise expansions reduces operating-risk. But in fact, the enter prise probably gains more troubles and enlarges overall-risk if it takes a dive rsified expansion neither concerned with its former vocations nor familiar w ith the new trade it carries on at all. Basic principles of diversification strategy Diversification Strategy leads an enterprise into new trades that it has nev er encountered before. But in the new domain, it will be much stranger in pr oduction, marketing, technology, information and management, and the risk comes to a higher degree. A stable, sturdy and superior major-business is the fundame ntal prerequisite for an enterprise’s existence and development, and also the ba sic premise of taking Diversification Strategy. But major-business with great superiority to others should not be considere d as an assurance of profits in new diversified expansion. It is also one of the most important things to analyze circumstances of the trade we newly encountere d and make a decision among different developing choices. To Diversification Str ategy, the decision means a lot. Fundamental forms of diversification strategy It is with great meaning to choose a proper form of diversification strategy and make choice among entering different developing fields. An enterprise should ch oose developing directions according to its management and strategy objectiv es fit for its resident environments. According to the different diversification levels, we may divide all enterprises taking diversification strategy into four groups: 1) Simple Business Corporation; 2) Major Business Corporation; 3) R elated- diversified Corporation; 4) Non-related diversified Corporation. After gaining knowledge about the basic conditions and forms, analysis about the advantages and disadvantages is quite important to handle the scale of diversif ication strategy. Ⅰ Advantages in Diversification: 1) Fewer risks in operating an enterprise; 2) Trying new profitable fields and keeping a continuous development; 3) Making a good use of original intangible assets and sharing resources altoget her; 4) Easier to achieve the purpose of expand and finally monopolize the market. Ⅱ Disadvantages in Diversification: The operating-risk may be reduced through taking diversification strategy and m ake diversified investment, but the enterprise will encounter new risks with ent ering new trades. Those risks include: 1) Financial risk; 2) Risks in organization and administration; 3) Risk of assets’ decentralization; 4) Risk of unsymmetrical information. Diversification strategy is a two-edge blade. The result that whether it benefi ts or does harm to the enterprise always depends on whether the enterprise takes proper developing directions according to its environments or not.展开更多
[Objective] To provide theoretical guidance for development of beef cattle industry in Yanbian region. [Method] Aggregated compara- tive advantage index and concentration factor were used to compare beef industry in Y...[Objective] To provide theoretical guidance for development of beef cattle industry in Yanbian region. [Method] Aggregated compara- tive advantage index and concentration factor were used to compare beef industry in Yanbian region and Jilin Province. [ Result] Beef cattle industry in Yanbian region had aggregated comparative advantages, and its concentration factor tended to rise year by year. [ Conclusion] The beef cattle industry in Yanbian region has obvious comparative advantages and development potential.展开更多
According to the latest Land Use Planning of Guangxi Zhuang Autonomous Region, Guangxi is divided into five regions, which are eastern Guangxi, western Guangxi, southern Guangxi, northern Guangxi, and central Guangxi....According to the latest Land Use Planning of Guangxi Zhuang Autonomous Region, Guangxi is divided into five regions, which are eastern Guangxi, western Guangxi, southern Guangxi, northern Guangxi, and central Guangxi. Regional variation characteristics of grain production are introduced from two aspects of the decline of grain sowing area and the increase of grain output. According to the data in Guangxi Statistical Yearbook, comparative advantages of regional grain production in Guangxi Zhuang Autonomous Region are analyzed by the method of Comprehensive Comparative Dominance Index. Result shows that eastern Guangxi and northern Guangxi have the maximum comprehensive dominance indices with the minimum increasing amount of dominance indices. Their advantages in grain production are gradually diminished; and the grain production center is moving to central Guangxi and southern Guangxi. In order to solve the problems in grain production, Guangxi should make full use of the comparative advantage in agricultural production, carry out structural adjustment of agricultural production, and try to realize the rational distribution and specialization of agricultural production.展开更多
Nanchong City has the advantages of developing late-maturing citrus in ecology,no-quarantine diseases and insect pests,base construction starting taking shape,production and management technology becoming increasingly...Nanchong City has the advantages of developing late-maturing citrus in ecology,no-quarantine diseases and insect pests,base construction starting taking shape,production and management technology becoming increasingly mature,leaders paying close attention and market recognition,and significant income increase of fruit growers. However,there are also problems such as weak infrastructure and weak anti-disaster ability,inadequate technology extension system,unmatched cold chain warehouses,and uneven quality of seedlings. Therefore,it is recommended to make scientific plan in accordance with actual local situations,regulate fine variety breeding and market supervision,build orchards with high standard and strengthen management,do a good job of propaganda and branding,improve post-harvest processing,extend the industrial chain,and issue preferential policies to promote the development of citrus industry in Nanchong City.展开更多
The panel data of 31 provinces in China from 2014 to 2016 were subjected to production concentration ratio and scale comparative advantage index analysis combining explicit supply and implicit demand. It was found tha...The panel data of 31 provinces in China from 2014 to 2016 were subjected to production concentration ratio and scale comparative advantage index analysis combining explicit supply and implicit demand. It was found that the explicit supply of green feed production and the production areas of beef cattle and mutton sheep related to implicit demand of green feed production terminal are relatively concentrated and stable. The area of green feed production with scale comparative advantage accounts for a large proportion. The number of advantageous areas was less than that of beef cattle and mutton sheep. There were fewer matching advantageous areas between the explicit green feed supply and the implicit cattle and sheep consumption across China. According to the matching between explicit green feed supply and implicit beef and sheep consumption,China’s green feed production can be divided into four types. Therefore,based on grasping the current layout of green feed and beef cattle and mutton sheep production,according to the comparative advantages of each region,the government should make reasonable arrangements according to local conditions and adopt different development strategies for different regions.展开更多
基金Shandong Province Traditional Chinese Medicine Science and Technology Project“Effects of Buccal Acupuncture on PGF2α,5-HT,and Uterine Hemodynamics in Patients with Primary Dysmenorrhea”(M-2022240)“Effects of the Combination of Oxycodone and Difference Anesthetic Drugs on Postoperative Cognitive Function and Inflammation-Related Serological Indicators in Elderly ERCP Patients”(ezmr2023-037)。
文摘Objective:To evaluate the clinical advantages of laparoscopic transverse abdominal wall suspension in treating pelvic organ prolapse.Methods:Sixty patients diagnosed with moderate to severe pelvic organ prolapse and underwent surgical treatment in our hospital between January 2022 and December 2023 were selected.According to different surgical methods,they were divided into an observation group(given laparoscopic transverse abdominal wall suspension)and a control group(given transvaginal mesh implantation),with 30 subjects/group.The data on perioperative-related indicators,quality of life scores,postoperative recurrence,and complications of the two groups of patients were collected.Results:The postoperative hospitalization days and intraoperative bleeding volume of the observation group were significantly lower than those of the control group,but had longer operation time than that of the control group(P<0.05).The differences between the two groups were statistically significant 6 months after surgery,and the Pelvic Floor Disease Quality of Life Impact Questionnaire(PFIQ-7)score of the observation group was significantly higher than the control group(P<0.05).Both groups of patients completed 12 months of follow-up without any postoperative recurrence.The number of complications in the observation group was slightly lower than that of the control group(P>0.05).Conclusion:Laparoscopic transverse abdominal wall suspension was more effective in treating pelvic organ prolapse and is an ideal surgical procedure.
基金Chongqing Engineering Institute 2023 Intramural Research Fund Grant Project:Highway Engineering Construction Process Management and Technological Innovation Research Based on BIM Technology(Project number:2023xzky04)。
文摘Based on the advantages of the application of Building Information Modelling(BIM)technology in highway engineering,this paper analyzes the difficulties of its in-depth application,grasps the pain points of the application of BIM technology in practice,and approaches from the integration of BIM design-construction.This paper also puts forward the integration of cross-stage information based on the BIM+Geographic Information System(GIS)construction information management system to realize the BIM whole life cycle management,and provides directional support for the continuous and efficient application of BIM technology in engineering practice.
基金supported by the National Key Research and Development Project of China(2021YFD1600101)the earmarked fund for China Agriculture research system(CARS-12 and CARS-13)the Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences(CAAS-ASTIP-2021-OCRI).
文摘As important supplementary to major edible oils, comparative chemical advantages of minor edible oils decidetheir development and usage. In this study, chemical composition of 13 kinds of specific edible vegetable oilswere investigated. The comparative advantages of chemical compositions of these edible oils were obtained asfollows: (1) camellia, tiger nut and almond oil were rich in oleic acid, the contents of which accounted for79.43%, 69.16% and 66.26%, respectively;(2) safflower oil contained the highest content of linoleic acid(76.69%), followed by grape seed (66.85%) and walnut oil (57.30%);(3) perilla seed, siritch, peony seed andherbaceous peony seed oil were rich in α-linolenic acid (59.61%, 43.74%, 40.83% and 30.84%, respectively);(4)the total phytosterol contents of these oils ranged from 91.46 mg/100 g (camellia oil) to 506.46 mg/100 g (siritchoil);and (5) The best source of tocopherols was sacha inchi oil (122.74 mg/100 g), followed by perilla seed oil(55.89 mg/100 g), peony seed oil (53.73 mg/100 g) and herbaceous peony seed oil (47.17 mg/100 g). Thecomparative advantages of these specific edible oils indicated that they possess the high potential nutritionalvalues and health care functions.
文摘Online Computer Algebra Systems (CAS) have become increasingly popular among students and teachers. The reasons are many such as being more flexible, simple to use, accessible from anywhere, etc. However, as with any educational tool, they also have some disadvantages that we should know. The purpose of this study is to analyze advantages and disadvantages of online CASs and propose some techniques to optimize CAS performance in order to reduce weaknesses. The research results reveal that online CAS versions are on the rise but lag in some capabilities in comparison with desktop versions.
基金Project name:Evolution of Growth Model and Cultivation of Competitive Advantage under Ambidextrous Innovation Strategy-A case study of China’s high-tech enterprises Project no.:JKY106320,Project category:National key project of the“14th Five-Year Plan”of Education and Scientific Research of the Ministry of Education The organization of the project chair:University of Malaya。
文摘This study focuses on the evolution of growth model and cultivation of competitive advantages under the ambidextrous innovation strategy.After a brief introduction of the connotation of ambidextrous innovation strategy,the evolution of growth model of high-tech enterprises under the conventional strategy and the ambidextrous innovation strategy is analyzed.Furthermore,a discussion is made on how to cultivate enterprises’competitive advantages under the ambidextrous innovation strategy,thereby enabling enterprises to stand out from competitors under this new strategic model and truly achieve the goal of sustainable development.
文摘Quantum Computing (QC) is hailed as the future of computers. After Google’s claim of achieving Quantum Supremacy in 2019, several groups challenged the claim. Some QC experts attribute catastrophic risks that unrestrained QC may cause in the future by collapsing the current cryptographic cybersecurity infrastructure. These predictions are relevant only if QC becomes commercially viable and sustainable in the future. No technology can be a one-way ticket to catastrophe, and neither can the definition of superiority of that technology be. If there are catastrophic risks, large-scale QC can never enter the public domain as a minimum viable product (MVP) unless there are safeguards in place. Those safeguards should obviously become an integral part of the definition of its superiority over the legacy systems. NIST (National Institute of Standards & Technology) is pursuing the standardization of Post Quantum Cryptography (PQC) as that safeguard. However, with all the 82 candidate PQCs failing and companies already offering QC as a service, there’s an urgent need for an alternate strategy to mitigate the impending Q-Day threat and render QC sustainable. Our research proposes a novel encryption-agnostic cybersecurity approach to safeguard QC. It articulates a comprehensive definition of an MVP that can potentially set a sustainable gold standard for defining commercially viable quantum advantage over classical computing.
文摘In English teachinig,the use of multi-media makes a vivid learning atmosphere for students.It can get a better teaching effect in all-around education.Meanwhile,thereare some problems inevitably in this field,leaving for the English teachers to solve.
文摘With the world globalization, China's communication with other countries has become more frequent. It is in great demand that a large number of college graduates who not only master their major but also do well in communication in English with English speakers. However, such graduates are scare because the backward teaching method-the Grammar-Traditional Method, cannot meet what the contemporary Chinese society demands. The reforms of the college English teaching are urgent and necessary. This paper first explores the major problems existing in the college English teaching. Furthermore, it introduces the basic theory of the Communicative Approach and analyzes its advantages in college English teaching.
文摘The phenomena of TL are connected with the defect structures of the atomic lattice of the material concerned, and hence are very sensitive to changes in defection of the country rocks status as induced by the mineralizing solution. In other words, the TL of the country rocks from the mineralized area should be quite different from that in the intact barren area.Besides the high sensitivity as mentioned above, advantages of the application of TL techniques to the mineral exploration the easiness in accessing to proper samples, the easy preparation of samples and the quickness in sample processing all amount to convenience and economy of the techniques, indicating the high competitiveness of the TL mineral exploration method, especially during the development stage of mining operations.
基金Supported by Research Project on Education and Teaching Reform of Higher Education Institutions in Hainan Province(Hnjg2016-12)Education and Teaching Reform Research Project of Hainan University(hdjy1604)
文摘The development of information technology has changed people's learning methods. Fragmented learning,as an informal learning method,has become an important way to accept new knowledge and learn new technologies. Through analyzing the connotation,characteristics,and advantages and disadvantages of fragmented learning,this paper came up with reasonable recommendations for fragmented learning. To truly become systematic and holistic knowledge,fragmented knowledge must be explored,understood,integrated and internalized. This paper is expected to play an important guiding role in building a lifelong learning society.
文摘企业竞争优势依赖于其所生存的环境,金融危机爆发之后的经济下行使装备制造企业竞争优势的来源发生了根本性的改变.通过对辽宁9 家企业的问卷调查,探究了辽宁装备制造企业的竞争优势现状,厘清了竞争优势维度对财务绩效的不同作用,进一步研究了竞争优势的提升路径.研究表明:经济下行对企业竞争优势的影响较大;目前竞争优势主要来源于低成本优势和新产品研发优势,但近年来新产品研发得到了较快的发展,而成本优势正在大幅减弱;产品开发、技术资源、软件和市场份额对总资产报酬率影响较大,而成本、与用户信任程度关系、质量和Y R IN技术资源对销售利润率影响较大;产品开发、成本、服务、与用户信任程度和性能是企业需要关注的重点.
基金supported by the National Key Research and Development Program of China(2017YFD0200202)the National Natural Science Foundation of China(U1404315)+1 种基金the China Scholarship Council(201608410278)the Natural Science Foundation of Henan Province(182300410014)。
文摘Intercropping of maize(Zea mays L.) and peanut(Arachis hypogaea L.) often results in greater yields than the respective sole crops. However, there is limited knowledge of aboveground and belowground interspecific interactions between maize and peanut in field. A two-year field experiment was conducted to investigate the effects of interspecific interactions on plant growth and grain yield for a peanut/maize intercropping system under different nitrogen(N) and phosphorus(P) levels. The method of root separation was employed to differentiate belowground from aboveground interspecific interactions. We observed that the global interspecific interaction effect on the shoot biomass of the intercropping system decreased with the coexistence period, and belowground interaction contributed more than aboveground interaction to advantages of the intercropping in terms of shoot biomass and grain yield. There was a positive effect from aboveground and belowground interspecific interactions on crop plant growth in the intercropping system, except that aboveground interaction had a negative effect on peanut during the late coexistence period. The advantage of intercropping on grain came mainly from increased maize yield(means 95%) due to aboveground interspecific competition for light and belowground interaction(61%–72% vs. 28%–39% in fertilizer treatments). There was a negative effect on grain yield from aboveground interaction for peanut, but belowground interspecific interaction positively affected peanut grain yield.The supply of N, P, or N + P increased grain yield of intercropped maize and the contribution from aboveground interspecific interaction. Our study suggests that the advantages of peanut/maize intercropping for yield mainly comes from aboveground interspecific competition for maize and belowground interspecific facilitation for peanut, and their respective yield can be enhanced by N and P. These findings are important for managing the intercropping system and optimizing the benefits from using this system.
文摘On the analysis of the current learning situation of the students from higher vocational and technical institutions, this paper proposes the way of using original English films in language teaching. It has indicated the advantages of English original films, such as can to motivate the students to learn by their willing, to create real-life, to enlarge students'view and to improve the competence of learning. Especially on dealing with the problems appearing in the learning process in vocational and technical institutions, teaching by English original film is a strongly suggested way.
文摘Diversification Strategy, or called Multi-operatio ns Strategy, means the strategy taken by enterprises engaging two or more kinds of material or labor products for different economic uses in the same time. It is H.Igor Ansoff who was a great economics master famous with his Product-mark et Strategy theory announced in the 1950’s. Coming out of practice of some others, we may draw a conclusion that it looks li ke each of enterprise expansions reduces operating-risk. But in fact, the enter prise probably gains more troubles and enlarges overall-risk if it takes a dive rsified expansion neither concerned with its former vocations nor familiar w ith the new trade it carries on at all. Basic principles of diversification strategy Diversification Strategy leads an enterprise into new trades that it has nev er encountered before. But in the new domain, it will be much stranger in pr oduction, marketing, technology, information and management, and the risk comes to a higher degree. A stable, sturdy and superior major-business is the fundame ntal prerequisite for an enterprise’s existence and development, and also the ba sic premise of taking Diversification Strategy. But major-business with great superiority to others should not be considere d as an assurance of profits in new diversified expansion. It is also one of the most important things to analyze circumstances of the trade we newly encountere d and make a decision among different developing choices. To Diversification Str ategy, the decision means a lot. Fundamental forms of diversification strategy It is with great meaning to choose a proper form of diversification strategy and make choice among entering different developing fields. An enterprise should ch oose developing directions according to its management and strategy objectiv es fit for its resident environments. According to the different diversification levels, we may divide all enterprises taking diversification strategy into four groups: 1) Simple Business Corporation; 2) Major Business Corporation; 3) R elated- diversified Corporation; 4) Non-related diversified Corporation. After gaining knowledge about the basic conditions and forms, analysis about the advantages and disadvantages is quite important to handle the scale of diversif ication strategy. Ⅰ Advantages in Diversification: 1) Fewer risks in operating an enterprise; 2) Trying new profitable fields and keeping a continuous development; 3) Making a good use of original intangible assets and sharing resources altoget her; 4) Easier to achieve the purpose of expand and finally monopolize the market. Ⅱ Disadvantages in Diversification: The operating-risk may be reduced through taking diversification strategy and m ake diversified investment, but the enterprise will encounter new risks with ent ering new trades. Those risks include: 1) Financial risk; 2) Risks in organization and administration; 3) Risk of assets’ decentralization; 4) Risk of unsymmetrical information. Diversification strategy is a two-edge blade. The result that whether it benefi ts or does harm to the enterprise always depends on whether the enterprise takes proper developing directions according to its environments or not.
基金funded by the China Natural Science Foundation ( 70963014)the Tertiary Key Disciplines Construction Program of 211 Project of Yanbian University
文摘[Objective] To provide theoretical guidance for development of beef cattle industry in Yanbian region. [Method] Aggregated compara- tive advantage index and concentration factor were used to compare beef industry in Yanbian region and Jilin Province. [ Result] Beef cattle industry in Yanbian region had aggregated comparative advantages, and its concentration factor tended to rise year by year. [ Conclusion] The beef cattle industry in Yanbian region has obvious comparative advantages and development potential.
基金Supported by the Scientific Research Funds of Guangxi Provincial Education Department( [2008]27 and[2007]34)the Guangxi Natural Science Foundation ( 2010GXNSFB013002)
文摘According to the latest Land Use Planning of Guangxi Zhuang Autonomous Region, Guangxi is divided into five regions, which are eastern Guangxi, western Guangxi, southern Guangxi, northern Guangxi, and central Guangxi. Regional variation characteristics of grain production are introduced from two aspects of the decline of grain sowing area and the increase of grain output. According to the data in Guangxi Statistical Yearbook, comparative advantages of regional grain production in Guangxi Zhuang Autonomous Region are analyzed by the method of Comprehensive Comparative Dominance Index. Result shows that eastern Guangxi and northern Guangxi have the maximum comprehensive dominance indices with the minimum increasing amount of dominance indices. Their advantages in grain production are gradually diminished; and the grain production center is moving to central Guangxi and southern Guangxi. In order to solve the problems in grain production, Guangxi should make full use of the comparative advantage in agricultural production, carry out structural adjustment of agricultural production, and try to realize the rational distribution and specialization of agricultural production.
基金Supported by the Meritocracy Research Fund of China West Normal University(17YC348)the Scientific Research Project of China West Normal University(12B021)
文摘Nanchong City has the advantages of developing late-maturing citrus in ecology,no-quarantine diseases and insect pests,base construction starting taking shape,production and management technology becoming increasingly mature,leaders paying close attention and market recognition,and significant income increase of fruit growers. However,there are also problems such as weak infrastructure and weak anti-disaster ability,inadequate technology extension system,unmatched cold chain warehouses,and uneven quality of seedlings. Therefore,it is recommended to make scientific plan in accordance with actual local situations,regulate fine variety breeding and market supervision,build orchards with high standard and strengthen management,do a good job of propaganda and branding,improve post-harvest processing,extend the industrial chain,and issue preferential policies to promote the development of citrus industry in Nanchong City.
基金Supported by Youth Project of National Social Science Foundation of China(16CGL038)Key Scientific Research Project for Colleges and Universities in Henan Province(18A630071)Soft Science Project of Henan Provincial Department of Science and Technology(182400410544)
文摘The panel data of 31 provinces in China from 2014 to 2016 were subjected to production concentration ratio and scale comparative advantage index analysis combining explicit supply and implicit demand. It was found that the explicit supply of green feed production and the production areas of beef cattle and mutton sheep related to implicit demand of green feed production terminal are relatively concentrated and stable. The area of green feed production with scale comparative advantage accounts for a large proportion. The number of advantageous areas was less than that of beef cattle and mutton sheep. There were fewer matching advantageous areas between the explicit green feed supply and the implicit cattle and sheep consumption across China. According to the matching between explicit green feed supply and implicit beef and sheep consumption,China’s green feed production can be divided into four types. Therefore,based on grasping the current layout of green feed and beef cattle and mutton sheep production,according to the comparative advantages of each region,the government should make reasonable arrangements according to local conditions and adopt different development strategies for different regions.