ChatGPT technology based on large language models(LLM)shows great potential in improving the quality of medical care,assisting clinical decision making and optimizing patient communication.The role of ChatGPT in ophth...ChatGPT technology based on large language models(LLM)shows great potential in improving the quality of medical care,assisting clinical decision making and optimizing patient communication.The role of ChatGPT in ophthalmology is still in its infancy.This review aims to explore the application prospect of ChatGPT in ophthalmology.Relevant literature was reviewed and analyzed,and the application prospects of LLM represented by ChatGPT in ophthalmology were summarized,including clinical assisted diagnosis,patient education and communication,history collection and text writing,clinical research,and medical education,etc.At the same time,the challenges and solutions faced by ChatGPT in ophthalmology were pointed out.Its safety,efficacy and ethics remain controversial in practical applications.Therefore,it is necessary to strengthen the supervision and research on its application to ensure safety and effectiveness.In the future,with the development of technology,ChatGPT is expected to play a greater role in ophthalmology and enhance the medical experience.展开更多
The dual transmitter implements the equivalent anti-magnetic flux transient electromagnetic method, which can effectively reduce the scope of the transient electromagnetic detection blind area. However, this method is...The dual transmitter implements the equivalent anti-magnetic flux transient electromagnetic method, which can effectively reduce the scope of the transient electromagnetic detection blind area. However, this method is rarely reported in the detection of pipelines in urban geophysical exploration and the application of coal mines. Based on this, this paper realizes the equivalent anti-magnetic flux transient electromagnetic method based on the dual launcher. The suppression effect of this method on the blind area is analyzed by physical simulation. And the detection experiment of underground pipelines is carried out outdoors. The results show that the dual launcher can significantly reduce the turn-off time, thereby effectively reducing the impact of the blind area on the detection results, and the pipeline detection results verify the device’s effectiveness. Finally, based on the ground experimental results, the application prospect of mine advanced detection is discussed. Compared with other detection fields, the formation of blind areas is mainly caused by the equipment. If the dual launcher can be used to reduce the blind area, the accuracy of advanced detection can be improved more effectively. The above research results are of great significance for improving the detection accuracy of the underground transient electromagnetic method.展开更多
Based on the evolution of farming revolution in Fengyan aiming to create a healthier and more beautiful human existence and a harmonious coexistence with nature, this study introduced Fenlong green agriculture, which ...Based on the evolution of farming revolution in Fengyan aiming to create a healthier and more beautiful human existence and a harmonious coexistence with nature, this study introduced Fenlong green agriculture, which had the characteristics of natural yield increase of more than 10% with zero fertilization, and yield increase of 10%-30%, quality improvement of 5% and doubled land water holding capacity with the conventional fertilization in over 20 crops in more than 20 provinces, and significant reforming efficiency on salinized land and grassland; for the first time made a comprehensive description of high efficient application of Fenlong green modern agriculture to explore natural resources, realizing the sustainable develop- ment of quality improvement, yield increase and efficiency enhancement; for the first time clarified the scientific basis and theoretical system of the green efficient mod- ern agricultural technique-Fenlong cultivation, as well as the basic connotations and concepts of Fenlong cultivation, green efficient modern agricultural technical system; created a new model of efficient modern agricultural production and new technology system, and 6 major technical projects like cultivated land improvement to increase yield and transformation of salinized land and grassland, which could play a role in relieving the climatic disasters like haze, transformation of farmland with medium to low yield as well as the construction of high standard farmland, sucrose industry and ＂One Road One Belt＂ strategy; for the first time proposed Fenlong cultivation as the ＂China technology card＂ in China and even the whole world, so as to make people understand the particular significance of this technology to green develop- ment, which could benefit the future generations.展开更多
Longli 1 （ Chenopod/um qu/noa Willd） was the first new quinoa variety in China, which was bred by Pasture and Green Agriculture Institute of Gansu Academy of Agricultural Sciences through the methods of line breedin...Longli 1 （ Chenopod/um qu/noa Willd） was the first new quinoa variety in China, which was bred by Pasture and Green Agriculture Institute of Gansu Academy of Agricultural Sciences through the methods of line breeding, cultivation and domestication. In muhipeint regional test, the average yield of Longli 1 was 2 100. （30 kg/hm2, which was increased by 9.6% compared to Jingle qulnoa. Langli 1 was a mid-late mature quinoa variety. The plant was brcom-shape, with the plant height of 181.2 - 223.6 cm, the growth period of 128 - 140 d, and the branch number of 23 - 27. The seeds were round pill shaped, with 1 000-grain weight of 2.40 -3.46 g. The contents of crude protein, fat, proline and total phosphorus in seeds were 171.5 -187.8, 56.5 -59.3, 5.5 -6.9 and 4.5 -6.8 g/kg, re- spectively. I_ongli 1 presented resistance against downy mildew and leaf spot, with strong disease-resistant ability. In multipeint regional test and production test, Longli 1 displayed lodging resistance with strong regeneration ability. It also presented resistance to cold, drought, saline and alkaline, and barren, with wide adaptability. Longh 1 was suitable for planting in mountains, plain field and irrigation area with frost-free period greater than 120 d, rainfall more than 250 mm, and altitude 1 500 -3 000 m. The application prospects of quinoa were also put forward in the paper.展开更多
In order to widen the application of microcrystalline magnesite, the microcrystalline magnesite in Sichuan and Tibet area was used as the raw material to prepare light-burned MgO at 700,800,900, 1 000, 1 100 and I 200...In order to widen the application of microcrystalline magnesite, the microcrystalline magnesite in Sichuan and Tibet area was used as the raw material to prepare light-burned MgO at 700,800,900, 1 000, 1 100 and I 200 ~C for 3 h, respectively. Then the physical and chemical properties of the light-burned MgO were detec- ted, and its application prospect was analyzed. The re- sults show that： （1） microcrystalline magnesite com- pletely decomposes forming light-burned MgO calcined at the temperature range of 700 - 1 200 ~C ; the MgO con- tent of the light-burned MgO is higher than 96. 51% ; the chemical activity is 88 - 130 s and the grain size is 40 - 200 nm ; it has the advantages of high purity, high activity and fine grain; （2） the light-burned MgO pre- pared with microcrystalline magnesite can be widely used in many industries; it can be used in refractories indus- try to prepare high-purity sintered magnesia and large crystal fused magnesia, or as an additive for refractory products, etc. ; it can also be used in magnesium chemi- cal industry to prepare electrical grade magnesia, sili- con-steel magnesia, environmental friendly flame retard- ant magnesium hydroxide, magnesium sulfate fertilizer, pharmaceutical grade magnesia, food grade magnesia, etc.展开更多
Aluminum matrix composite is one of the most attractive metal matrix composites.It is a kind of material with strong vitality emerging in response to the needs of modern scientific development.Compared with traditiona...Aluminum matrix composite is one of the most attractive metal matrix composites.It is a kind of material with strong vitality emerging in response to the needs of modern scientific development.Compared with traditional materials,aluminum matrix composites have the advantages of low density,good electric conductivity and heat conductivity,good wear resistance and oxidation resistance,high specific strength and stiffness,high temperature resistance,good heat treatment performance and flexible preparation process,which make them widely used in the fields of aviation,aerospace,and automobile.In this paper,the factors affecting the properties of aluminum matrix composites,the strengthening mechanism,classification and preparation methods of aluminum matrix composites are summarized.The research status,development direction and application prospect of aluminum matrix composites are briefly introduced.展开更多
By summarizing the composition,classification,and performance characterization of functional adhesive materials,the adhesion mechanisms of functional adhesive materials,such as adsorption/surface reaction,diffusion,me...By summarizing the composition,classification,and performance characterization of functional adhesive materials,the adhesion mechanisms of functional adhesive materials,such as adsorption/surface reaction,diffusion,mechanical interlocking,and electrostatic adsorption,are expounded.The research status of these materials in oil and gas drilling and production engineering field such as lost circulation prevention/control,wellbore stabilization,hydraulic fracturing,and profile control and water plugging,and their application challenges and prospects in oil and gas drilling and production are introduced comprehensively.According to the applications of functional adhesive materials in the field of oil and gas drilling and production at this stage,the key research directions of functional adhesive materials in the area of oil and gas drilling and production are proposed:(1)blending and modifying thermoplastic resins or designing curable thermoplastic resins to improve the bonding performance and pressure bearing capacity of adhesive lost circulation materials;(2)introducing low-cost adhesive groups and positive charge structures into polymers to reduce the cost of wellbore strengthening agents and improve their adhesion performance on the wellbore;(3)introducing thermally reversible covalent bond into thermosetting resin to prevent backflow of proppant and improve the compressive strength of adhesive proppant;(4)introducing thermally reversible covalent bonds into thermoplastic polymers to improve the temperature resistance,salt-resistance and water shutoff performance of adhesive water shutoff agents.展开更多
The Radio over Fiber (RoF) communication technology combines the technical advantages of both fiber communication and wireless mobile communication to solve the problems of bandwidth,flexibility and electromagnetic in...The Radio over Fiber (RoF) communication technology combines the technical advantages of both fiber communication and wireless mobile communication to solve the problems of bandwidth,flexibility and electromagnetic interference.Research of the technology is drawing wide concerns around the world.However,high cost becomes a drawback of this technology at present.In this article the RoF Multi-System Access (RoFMA) scheme is proposed.The scheme makes use of the Optical Time Division Multiplexing (OTDM) and multi-system multiplex/de-multiplex technologies to lower the access cost.The article also predicts good development and market prospect of the RoFMA technology.展开更多
Research and development of Chengyin detoxification prescription are taken as research objects. Starting from preparation research and development, clinical research, urgency and market demand, and significance for in...Research and development of Chengyin detoxification prescription are taken as research objects. Starting from preparation research and development, clinical research, urgency and market demand, and significance for industrial development, the relevant research of Chengyin detoxification prescription is systematically reviewed, and the application prospect of the ethnic medicine preparations is looked forward to.展开更多
This article mainly discusses the application prospects and suggestions of DeepSeek in theoretical teaching of nursing.DeepSeek,with core technologies such as natural language processing,machine learning,and deep lear...This article mainly discusses the application prospects and suggestions of DeepSeek in theoretical teaching of nursing.DeepSeek,with core technologies such as natural language processing,machine learning,and deep learning,can provide personalized learning plans,real-time feedback,and curriculum generation,bringing innovation to nursing education.The article proposes application suggestions such as using DeepSeek to create customized learning materials,optimizing teaching content and presentation methods,enhancing teaching interactivity,and emphasizes the importance of protecting student privacy and following ethical norms.At the same time,the article also points out strategies that combine traditional teaching methods,such as integrating online and offline teaching and leveraging the leading role of teachers.展开更多
Gastric cancer(GC)is a prevalent malignant tumor within the digestive system,with over 40%of new cases and deaths related to GC globally occurring in China.Despite advancements in treatment modalities,such as surgery ...Gastric cancer(GC)is a prevalent malignant tumor within the digestive system,with over 40%of new cases and deaths related to GC globally occurring in China.Despite advancements in treatment modalities,such as surgery supplemented by adjuvant radiotherapy or chemotherapeutic agents,the prognosis for GC remains poor.New targeted therapies and immunotherapies are currently under invest-igation,but no significant breakthroughs have been achieved.Studies have indicated that GC is a heterogeneous disease,encompassing multiple subtypes with distinct biological characteristics and roles.Consequently,personalized treatment based on clinical features,pathologic typing,and molecular typing is crucial for the diagnosis and management of precancerous lesions of gastric cancer(PLGC).Current research has categorized GC into four subtypes:Epstein-Barr virus-positive,microsatellite instability,genome stability,and chromosome instability(CIN).Technologies such as multi-omics analysis and gene sequencing are being employed to identify more suitable novel testing methods in these areas.Among these,ultrasensitive chromosomal aneuploidy detection(UCAD)can detect CIN at a genome-wide level in subjects using low-depth whole genome sequencing technology,in conjunction with bioinformatics analysis,to achieve qualitative and quantitative detection of chromosomal stability.This editorial reviews recent research advancements in UCAD technology for the diagnosis and management of PLGC.展开更多
With the continuous growth of the global population and the acceleration of urbanization,traditional agriculture faces severe challenges,such as labor shortages,low efficiency in agricultural resource utilization,and ...With the continuous growth of the global population and the acceleration of urbanization,traditional agriculture faces severe challenges,such as labor shortages,low efficiency in agricultural resource utilization,and uncertainties caused by climate change.Unmanned agricultural machinery,as an integral part of smart agriculture,utilizes automation and intelligent technologies to achieve precise control over the entire agricultural production process,improving production efficiency,reducing labor costs,minimizing environmental impacts,and enhancing sustainability.In recent years,with advancements in information technology,artificial intelligence,and the Internet of Things,unmanned agricultural machinery has made significant technological progress and has gradually entered the commercialization stage.This study aims to analyze the technological advancements and development trends of unmanned agricultural machinery and explore its application prospects in practical production.By investigating this emerging technology,the research not only provides a theoretical foundation for agricultural technological innovation but also offers practical references for policymakers,agricultural enterprises,and practitioners.Particularly in the critical period of global agricultural transformation,research on unmanned agricultural machinery holds significant economic,environmental,and social value.展开更多
Phytohormone is a key regulator of plant growth and development.It has important effects on plant under biotic and abiotic stresses.However,the dose control of phytohormone is always a difficult problem in the applica...Phytohormone is a key regulator of plant growth and development.It has important effects on plant under biotic and abiotic stresses.However,the dose control of phytohormone is always a difficult problem in the application process,which limits the application range of phytohormone.Nanotechnology,because of its characteristics of controlled release,targeted therapy,non-pollution,high adsorption,lower volatilization of active substances,and low dosage of drug,comes into researchers’vision.Nanomaterials were directly applicated on crops at the early stage,and then active substances,such as pesticides,were encapsulated with nanomaterials,also achieved good results in the field.Currently,more and more attentions have been paid to nano-enabled delivery of phytohormones to plants,and formed a new field in agriculture.In present work,we reviewed the existing literatures,focused on the important regulatory roles of phytohormones in plant growth and development and their application potential,and the development and application prospect of nanomaterials combined with phytohormones were also have been discussed.展开更多
The transportation industry is one of the largest users of the BeiDou Navigation Satellite System(BDS),characterized by multiple locations,long lines,wide range,and extensive mobility.The application of BDS in the tra...The transportation industry is one of the largest users of the BeiDou Navigation Satellite System(BDS),characterized by multiple locations,long lines,wide range,and extensive mobility.The application of BDS in the transportation industry improves the development level of intelligent,safe,green and shared transportation.Based on the introduction of the application requirements and characteristics of BDS in the transportation industry,this paper systematically introduces the overall status of BDS in the transportation industry,covering highways,waterways,railways,civil aviation,and the postal service.Finally,the paper forecasts future applications of BDS in the field of transportation.It identifies within the transportation industry rich application scenarios for the cultivation of advanced technologies represented by BDS,enhancing transportation safety services and guaranteeing emergency communication,while improving the operation efficiency and management level of an integrated transportation system.展开更多
The Kuqa depression deposited thick rock salt,which has a lower density than surrounding rocks.When salt bodies form a certain scale,obvious negative gravity anomalies can be detected in the surface.Therefore,gravitat...The Kuqa depression deposited thick rock salt,which has a lower density than surrounding rocks.When salt bodies form a certain scale,obvious negative gravity anomalies can be detected in the surface.Therefore,gravitational method can quickly obtain the shape,plane distribution of deep-seated salt bodies and overall tectonic morphology of the basin.展开更多
Hybrid wheat is recognized as a preferred approach to improve wheat yield,and it will be a competition focus in high-tech seed industry in the future. We have made a breakthrough for the first time in creation of two-...Hybrid wheat is recognized as a preferred approach to improve wheat yield,and it will be a competition focus in high-tech seed industry in the future. We have made a breakthrough for the first time in creation of two-line hybrid wheat system,which reaches the world leading level in wheat research and has laid an important foundation for the future direction of the world wheat research. Similar to hybrid rice,the innovation of two-line hybrid wheat system is another achievement in science and technology. The application of hybrid wheat in China will greatly increase the food production,and make a great significance to food production and food security. This paper introduces the development process and major breakthrough of hybrid wheat in China,and the main bottleneck and countermeasures in the application of hybrid wheat.展开更多
With the world's energy demand increasing and energy sources drying up, oil and gas pipelines have to meet the requirements of high-pressure and long-distance transportation, low temperature, large displacement, d...With the world's energy demand increasing and energy sources drying up, oil and gas pipelines have to meet the requirements of high-pressure and long-distance transportation, low temperature, large displacement, deep sea, acidic medium, frozen soil and other harsh environments. Pipeline steel is mainly used for the transportation of crude oil, refined oil, natural gas and coal water slurry. In order to ensure the safety and economy of pipeline transportation engineering, the development trend of pipeline steel must be high strength and toughness, thick wall and large deformation. High corrosion resistance and weldability in harsh environment. In this paper, through the adjustment of China's energy structure and the change of material transportation mode, X65 pipeline steel has a good market application prospect, and through microalloying and multi-element alloying in alloy design, the strength and toughness of pipeline steel are improved to ensure the transportation capacity of long-distance pipeline steel.展开更多
In recent years, our country has made breakthrough achievements and development in the field of science and technology, advanced technology has been widely used in all fields of life. With the vigorous promotion of di...In recent years, our country has made breakthrough achievements and development in the field of science and technology, advanced technology has been widely used in all fields of life. With the vigorous promotion of digital informatization, BIM technology has been understood by more and more people. Especially in the current construction industry, the effective use of BIM technology can well control the quality of project cost management. In short, BIM technology plays a vital role in project cost management.展开更多
Rubik’s Cube is a widely popular mechanical puzzle that has attracted attention around the world because of its unique characteristics. As a classic brain-training toy well known to the public, Rubik’s Cube was used...Rubik’s Cube is a widely popular mechanical puzzle that has attracted attention around the world because of its unique characteristics. As a classic brain-training toy well known to the public, Rubik’s Cube was used for scientific research and technology development by many scholars. This paper provides a basic understanding of the Rubik’s Cube and shows its mechanical art from the aspects of origin and development, characteristics, research status and especially its mechanical engineering design, as well as making a vision for the application in mechanism. First, the invention and origin of Rubik’s Cube are presented, and then the special characteristics of the cube itself are analyzed.After that, the present researches of Rubik’s Cube are reviewed in various disciplines at home and abroad, including the researches of Rubik’s Cube scientific metaphors, reduction algorithms, characteristic applications, and mechanism issues. Finally, the applications and prospects of Rubik’s Cube in the field of mechanism are discussed.展开更多
Ginkgo biloba resources in China are enormous. With the demand of the market, the preparation and application of flavonoids have become a current research hotspot. The main active substances in G. biloba leaves, flavo...Ginkgo biloba resources in China are enormous. With the demand of the market, the preparation and application of flavonoids have become a current research hotspot. The main active substances in G. biloba leaves, flavonoids, have various functional activities and are widely used in fields such as food, medicine, cosmetics, feed, etc. In this paper, the introduction, functional activity, extraction methods, and application research of flavonoids from G. biloba leaves are reviewed, and the development prospects of flavonoids from G. biloba leaves are expected.展开更多
基金Supported by the Hainan Provincial Natural Science Foundation of China(No.825RC898)and Hainan Province Clinical Medical Center.
文摘ChatGPT technology based on large language models(LLM)shows great potential in improving the quality of medical care,assisting clinical decision making and optimizing patient communication.The role of ChatGPT in ophthalmology is still in its infancy.This review aims to explore the application prospect of ChatGPT in ophthalmology.Relevant literature was reviewed and analyzed,and the application prospects of LLM represented by ChatGPT in ophthalmology were summarized,including clinical assisted diagnosis,patient education and communication,history collection and text writing,clinical research,and medical education,etc.At the same time,the challenges and solutions faced by ChatGPT in ophthalmology were pointed out.Its safety,efficacy and ethics remain controversial in practical applications.Therefore,it is necessary to strengthen the supervision and research on its application to ensure safety and effectiveness.In the future,with the development of technology,ChatGPT is expected to play a greater role in ophthalmology and enhance the medical experience.
文摘The dual transmitter implements the equivalent anti-magnetic flux transient electromagnetic method, which can effectively reduce the scope of the transient electromagnetic detection blind area. However, this method is rarely reported in the detection of pipelines in urban geophysical exploration and the application of coal mines. Based on this, this paper realizes the equivalent anti-magnetic flux transient electromagnetic method based on the dual launcher. The suppression effect of this method on the blind area is analyzed by physical simulation. And the detection experiment of underground pipelines is carried out outdoors. The results show that the dual launcher can significantly reduce the turn-off time, thereby effectively reducing the impact of the blind area on the detection results, and the pipeline detection results verify the device’s effectiveness. Finally, based on the ground experimental results, the application prospect of mine advanced detection is discussed. Compared with other detection fields, the formation of blind areas is mainly caused by the equipment. If the dual launcher can be used to reduce the blind area, the accuracy of advanced detection can be improved more effectively. The above research results are of great significance for improving the detection accuracy of the underground transient electromagnetic method.
文摘Based on the evolution of farming revolution in Fengyan aiming to create a healthier and more beautiful human existence and a harmonious coexistence with nature, this study introduced Fenlong green agriculture, which had the characteristics of natural yield increase of more than 10% with zero fertilization, and yield increase of 10%-30%, quality improvement of 5% and doubled land water holding capacity with the conventional fertilization in over 20 crops in more than 20 provinces, and significant reforming efficiency on salinized land and grassland; for the first time made a comprehensive description of high efficient application of Fenlong green modern agriculture to explore natural resources, realizing the sustainable develop- ment of quality improvement, yield increase and efficiency enhancement; for the first time clarified the scientific basis and theoretical system of the green efficient mod- ern agricultural technique-Fenlong cultivation, as well as the basic connotations and concepts of Fenlong cultivation, green efficient modern agricultural technical system; created a new model of efficient modern agricultural production and new technology system, and 6 major technical projects like cultivated land improvement to increase yield and transformation of salinized land and grassland, which could play a role in relieving the climatic disasters like haze, transformation of farmland with medium to low yield as well as the construction of high standard farmland, sucrose industry and ＂One Road One Belt＂ strategy; for the first time proposed Fenlong cultivation as the ＂China technology card＂ in China and even the whole world, so as to make people understand the particular significance of this technology to green develop- ment, which could benefit the future generations.
基金Agricultural Science and Technology Innovation Project of Gansu Province"Key Technology for Introduction,Innovation and Cultivation of Quinoa"(GNCX-2013-48)Youth Fund Project of Gansu Academy of Agricultural Sciences"Effect of Agronomic Measures on Growth Characteristics and Production Performance of Quinoa"(2014GAAS34)
文摘Longli 1 （ Chenopod/um qu/noa Willd） was the first new quinoa variety in China, which was bred by Pasture and Green Agriculture Institute of Gansu Academy of Agricultural Sciences through the methods of line breeding, cultivation and domestication. In muhipeint regional test, the average yield of Longli 1 was 2 100. （30 kg/hm2, which was increased by 9.6% compared to Jingle qulnoa. Langli 1 was a mid-late mature quinoa variety. The plant was brcom-shape, with the plant height of 181.2 - 223.6 cm, the growth period of 128 - 140 d, and the branch number of 23 - 27. The seeds were round pill shaped, with 1 000-grain weight of 2.40 -3.46 g. The contents of crude protein, fat, proline and total phosphorus in seeds were 171.5 -187.8, 56.5 -59.3, 5.5 -6.9 and 4.5 -6.8 g/kg, re- spectively. I_ongli 1 presented resistance against downy mildew and leaf spot, with strong disease-resistant ability. In multipeint regional test and production test, Longli 1 displayed lodging resistance with strong regeneration ability. It also presented resistance to cold, drought, saline and alkaline, and barren, with wide adaptability. Longh 1 was suitable for planting in mountains, plain field and irrigation area with frost-free period greater than 120 d, rainfall more than 250 mm, and altitude 1 500 -3 000 m. The application prospects of quinoa were also put forward in the paper.
文摘In order to widen the application of microcrystalline magnesite, the microcrystalline magnesite in Sichuan and Tibet area was used as the raw material to prepare light-burned MgO at 700,800,900, 1 000, 1 100 and I 200 ~C for 3 h, respectively. Then the physical and chemical properties of the light-burned MgO were detec- ted, and its application prospect was analyzed. The re- sults show that： （1） microcrystalline magnesite com- pletely decomposes forming light-burned MgO calcined at the temperature range of 700 - 1 200 ~C ; the MgO con- tent of the light-burned MgO is higher than 96. 51% ; the chemical activity is 88 - 130 s and the grain size is 40 - 200 nm ; it has the advantages of high purity, high activity and fine grain; （2） the light-burned MgO pre- pared with microcrystalline magnesite can be widely used in many industries; it can be used in refractories indus- try to prepare high-purity sintered magnesia and large crystal fused magnesia, or as an additive for refractory products, etc. ; it can also be used in magnesium chemi- cal industry to prepare electrical grade magnesia, sili- con-steel magnesia, environmental friendly flame retard- ant magnesium hydroxide, magnesium sulfate fertilizer, pharmaceutical grade magnesia, food grade magnesia, etc.
基金Thanks for the support of the National Natural Science Foundation of China(51661021)Thanks for the support of Key Research and Development Projects of Gansu Province(18YF1GA061)China Postdoctoral Science Foundation(2019M653896XB).
文摘Aluminum matrix composite is one of the most attractive metal matrix composites.It is a kind of material with strong vitality emerging in response to the needs of modern scientific development.Compared with traditional materials,aluminum matrix composites have the advantages of low density,good electric conductivity and heat conductivity,good wear resistance and oxidation resistance,high specific strength and stiffness,high temperature resistance,good heat treatment performance and flexible preparation process,which make them widely used in the fields of aviation,aerospace,and automobile.In this paper,the factors affecting the properties of aluminum matrix composites,the strengthening mechanism,classification and preparation methods of aluminum matrix composites are summarized.The research status,development direction and application prospect of aluminum matrix composites are briefly introduced.
基金Supported by National Natural Science Foundation of China(51991361,52074327)Major Engineering Technology Field Test Project of CNPC(2020F-45)。
文摘By summarizing the composition,classification,and performance characterization of functional adhesive materials,the adhesion mechanisms of functional adhesive materials,such as adsorption/surface reaction,diffusion,mechanical interlocking,and electrostatic adsorption,are expounded.The research status of these materials in oil and gas drilling and production engineering field such as lost circulation prevention/control,wellbore stabilization,hydraulic fracturing,and profile control and water plugging,and their application challenges and prospects in oil and gas drilling and production are introduced comprehensively.According to the applications of functional adhesive materials in the field of oil and gas drilling and production at this stage,the key research directions of functional adhesive materials in the area of oil and gas drilling and production are proposed:(1)blending and modifying thermoplastic resins or designing curable thermoplastic resins to improve the bonding performance and pressure bearing capacity of adhesive lost circulation materials;(2)introducing low-cost adhesive groups and positive charge structures into polymers to reduce the cost of wellbore strengthening agents and improve their adhesion performance on the wellbore;(3)introducing thermally reversible covalent bond into thermosetting resin to prevent backflow of proppant and improve the compressive strength of adhesive proppant;(4)introducing thermally reversible covalent bonds into thermoplastic polymers to improve the temperature resistance,salt-resistance and water shutoff performance of adhesive water shutoff agents.
基金supported by the National Natural Science Foundation under Grant No.60736003
文摘The Radio over Fiber (RoF) communication technology combines the technical advantages of both fiber communication and wireless mobile communication to solve the problems of bandwidth,flexibility and electromagnetic interference.Research of the technology is drawing wide concerns around the world.However,high cost becomes a drawback of this technology at present.In this article the RoF Multi-System Access (RoFMA) scheme is proposed.The scheme makes use of the Optical Time Division Multiplexing (OTDM) and multi-system multiplex/de-multiplex technologies to lower the access cost.The article also predicts good development and market prospect of the RoFMA technology.
基金Supported by Key R&D Plan of Guangxi Science and Technology Department(GUIKE AB21196057)Science and Technology Plan Project in Liangqing District in 2022(202202)+5 种基金High-level Traditional Chinese Medicine Key Discipline(Zhuang Pharmacy)Construction Project of National Administration of Traditional Chinese MedicineMultidisciplinary Cross Innovation Team Project of Guangxi Traditional Chinese Medicine(GZKJ2309)"Youth Project"Talent Cultivation Project of Guangxi International Zhuang Medical Hospital(2022001)General Program at School Level of Guangxi University of Chinese Medicine in 2022(2022MS055)"Twelfth Five-year Plan"Key Discipline of Traditional Chinese Medicine(Ethnic Medicine)Zhuang Pharmacy by National Administration of Traditional Chinese MedicineHigh-level Talent Cultivation and Innovation Team Project of Guangxi University of Chinese Medicine(2022A008).
文摘Research and development of Chengyin detoxification prescription are taken as research objects. Starting from preparation research and development, clinical research, urgency and market demand, and significance for industrial development, the relevant research of Chengyin detoxification prescription is systematically reviewed, and the application prospect of the ethnic medicine preparations is looked forward to.
文摘This article mainly discusses the application prospects and suggestions of DeepSeek in theoretical teaching of nursing.DeepSeek,with core technologies such as natural language processing,machine learning,and deep learning,can provide personalized learning plans,real-time feedback,and curriculum generation,bringing innovation to nursing education.The article proposes application suggestions such as using DeepSeek to create customized learning materials,optimizing teaching content and presentation methods,enhancing teaching interactivity,and emphasizes the importance of protecting student privacy and following ethical norms.At the same time,the article also points out strategies that combine traditional teaching methods,such as integrating online and offline teaching and leveraging the leading role of teachers.
文摘Gastric cancer(GC)is a prevalent malignant tumor within the digestive system,with over 40%of new cases and deaths related to GC globally occurring in China.Despite advancements in treatment modalities,such as surgery supplemented by adjuvant radiotherapy or chemotherapeutic agents,the prognosis for GC remains poor.New targeted therapies and immunotherapies are currently under invest-igation,but no significant breakthroughs have been achieved.Studies have indicated that GC is a heterogeneous disease,encompassing multiple subtypes with distinct biological characteristics and roles.Consequently,personalized treatment based on clinical features,pathologic typing,and molecular typing is crucial for the diagnosis and management of precancerous lesions of gastric cancer(PLGC).Current research has categorized GC into four subtypes:Epstein-Barr virus-positive,microsatellite instability,genome stability,and chromosome instability(CIN).Technologies such as multi-omics analysis and gene sequencing are being employed to identify more suitable novel testing methods in these areas.Among these,ultrasensitive chromosomal aneuploidy detection(UCAD)can detect CIN at a genome-wide level in subjects using low-depth whole genome sequencing technology,in conjunction with bioinformatics analysis,to achieve qualitative and quantitative detection of chromosomal stability.This editorial reviews recent research advancements in UCAD technology for the diagnosis and management of PLGC.
文摘With the continuous growth of the global population and the acceleration of urbanization,traditional agriculture faces severe challenges,such as labor shortages,low efficiency in agricultural resource utilization,and uncertainties caused by climate change.Unmanned agricultural machinery,as an integral part of smart agriculture,utilizes automation and intelligent technologies to achieve precise control over the entire agricultural production process,improving production efficiency,reducing labor costs,minimizing environmental impacts,and enhancing sustainability.In recent years,with advancements in information technology,artificial intelligence,and the Internet of Things,unmanned agricultural machinery has made significant technological progress and has gradually entered the commercialization stage.This study aims to analyze the technological advancements and development trends of unmanned agricultural machinery and explore its application prospects in practical production.By investigating this emerging technology,the research not only provides a theoretical foundation for agricultural technological innovation but also offers practical references for policymakers,agricultural enterprises,and practitioners.Particularly in the critical period of global agricultural transformation,research on unmanned agricultural machinery holds significant economic,environmental,and social value.
基金supported by the National Natural Science Foundation of China(No.32160655)Breeding Program of Guizhou University(No.201931).
文摘Phytohormone is a key regulator of plant growth and development.It has important effects on plant under biotic and abiotic stresses.However,the dose control of phytohormone is always a difficult problem in the application process,which limits the application range of phytohormone.Nanotechnology,because of its characteristics of controlled release,targeted therapy,non-pollution,high adsorption,lower volatilization of active substances,and low dosage of drug,comes into researchers’vision.Nanomaterials were directly applicated on crops at the early stage,and then active substances,such as pesticides,were encapsulated with nanomaterials,also achieved good results in the field.Currently,more and more attentions have been paid to nano-enabled delivery of phytohormones to plants,and formed a new field in agriculture.In present work,we reviewed the existing literatures,focused on the important regulatory roles of phytohormones in plant growth and development and their application potential,and the development and application prospect of nanomaterials combined with phytohormones were also have been discussed.
文摘The transportation industry is one of the largest users of the BeiDou Navigation Satellite System(BDS),characterized by multiple locations,long lines,wide range,and extensive mobility.The application of BDS in the transportation industry improves the development level of intelligent,safe,green and shared transportation.Based on the introduction of the application requirements and characteristics of BDS in the transportation industry,this paper systematically introduces the overall status of BDS in the transportation industry,covering highways,waterways,railways,civil aviation,and the postal service.Finally,the paper forecasts future applications of BDS in the field of transportation.It identifies within the transportation industry rich application scenarios for the cultivation of advanced technologies represented by BDS,enhancing transportation safety services and guaranteeing emergency communication,while improving the operation efficiency and management level of an integrated transportation system.
基金financially supported by the project of investigation and evaluation of potash deposits in the Cretaceous-Tertiary salt basin of the Tarim basin from potash investigation project of China Geological Survey (No. 1212011220790)
文摘The Kuqa depression deposited thick rock salt,which has a lower density than surrounding rocks.When salt bodies form a certain scale,obvious negative gravity anomalies can be detected in the surface.Therefore,gravitational method can quickly obtain the shape,plane distribution of deep-seated salt bodies and overall tectonic morphology of the basin.
文摘Hybrid wheat is recognized as a preferred approach to improve wheat yield,and it will be a competition focus in high-tech seed industry in the future. We have made a breakthrough for the first time in creation of two-line hybrid wheat system,which reaches the world leading level in wheat research and has laid an important foundation for the future direction of the world wheat research. Similar to hybrid rice,the innovation of two-line hybrid wheat system is another achievement in science and technology. The application of hybrid wheat in China will greatly increase the food production,and make a great significance to food production and food security. This paper introduces the development process and major breakthrough of hybrid wheat in China,and the main bottleneck and countermeasures in the application of hybrid wheat.
文摘With the world's energy demand increasing and energy sources drying up, oil and gas pipelines have to meet the requirements of high-pressure and long-distance transportation, low temperature, large displacement, deep sea, acidic medium, frozen soil and other harsh environments. Pipeline steel is mainly used for the transportation of crude oil, refined oil, natural gas and coal water slurry. In order to ensure the safety and economy of pipeline transportation engineering, the development trend of pipeline steel must be high strength and toughness, thick wall and large deformation. High corrosion resistance and weldability in harsh environment. In this paper, through the adjustment of China's energy structure and the change of material transportation mode, X65 pipeline steel has a good market application prospect, and through microalloying and multi-element alloying in alloy design, the strength and toughness of pipeline steel are improved to ensure the transportation capacity of long-distance pipeline steel.
文摘In recent years, our country has made breakthrough achievements and development in the field of science and technology, advanced technology has been widely used in all fields of life. With the vigorous promotion of digital informatization, BIM technology has been understood by more and more people. Especially in the current construction industry, the effective use of BIM technology can well control the quality of project cost management. In short, BIM technology plays a vital role in project cost management.
基金Supported by National Natural Science Foundation of China(Grant No.51775473)Hebei Provincial Natural Science Foundation of China(Grant No.E2018203140)Hebei Provincial System Construction Project of Guide Program for Technology Innovation(Grant No.18241905D)
文摘Rubik’s Cube is a widely popular mechanical puzzle that has attracted attention around the world because of its unique characteristics. As a classic brain-training toy well known to the public, Rubik’s Cube was used for scientific research and technology development by many scholars. This paper provides a basic understanding of the Rubik’s Cube and shows its mechanical art from the aspects of origin and development, characteristics, research status and especially its mechanical engineering design, as well as making a vision for the application in mechanism. First, the invention and origin of Rubik’s Cube are presented, and then the special characteristics of the cube itself are analyzed.After that, the present researches of Rubik’s Cube are reviewed in various disciplines at home and abroad, including the researches of Rubik’s Cube scientific metaphors, reduction algorithms, characteristic applications, and mechanism issues. Finally, the applications and prospects of Rubik’s Cube in the field of mechanism are discussed.
基金Supported by Science and Technology Research Project of Hebei Provincial Department of Education (ZC2021206)。
文摘Ginkgo biloba resources in China are enormous. With the demand of the market, the preparation and application of flavonoids have become a current research hotspot. The main active substances in G. biloba leaves, flavonoids, have various functional activities and are widely used in fields such as food, medicine, cosmetics, feed, etc. In this paper, the introduction, functional activity, extraction methods, and application research of flavonoids from G. biloba leaves are reviewed, and the development prospects of flavonoids from G. biloba leaves are expected.
