α-Fe_(2)O_(3)/epoxy resin composite superhydrophobic coating was prepared withα-Fe_(2)O_(3) nanoparticles and epoxy resin by spin coating method.The coating without epoxy resin has higher contact angle(CA)and lower ...α-Fe_(2)O_(3)/epoxy resin composite superhydrophobic coating was prepared withα-Fe_(2)O_(3) nanoparticles and epoxy resin by spin coating method.The coating without epoxy resin has higher contact angle(CA)and lower ice adhesion strength(IAS),but the mechanical properties are poor.Theα-Fe_(2)O_(3)/epoxy resin composite superhydrophobic coating exhibits good mechanical durability.In addition,compared with the bare aluminum substrate,the Ecorr of the composite coating is positive and the Jcorr is lower.The inhibition efficiency of the composite coating is as high as 99.98%in 3.5 wt%NaCl solution.The difference in the microstructure caused by the two preparation methods leads to the changes in mechanical properties and corrosion resistance of composite superhydrophobic coating.展开更多
The formation of ice on the leading edge of aircraft engines is a serious issue,as it can have catastrophic consequences.The Swirl Anti-Icing(SAI)system,driven by ejection,circulates hot fluid within a 360°annula...The formation of ice on the leading edge of aircraft engines is a serious issue,as it can have catastrophic consequences.The Swirl Anti-Icing(SAI)system,driven by ejection,circulates hot fluid within a 360°annular chamber to heat the engine inlet lip surface and prevent icing.This study employs a validated Computational Fluid Dynamics(CFD)approach to study the impact of key geometric parameters of this system on flow and heat transfer characteristics within the anti-icing chamber.Additionally,the entropy generation rate and exergy efficiency are analyzed to assess the energy utilization in the system.The research findings indicate that,within the considered flow range,reducing the nozzle specific areaφfrom 0.03061 to 0.01083 can enhance the ejection coefficient by over 60.7%.This enhancement increases the air circulating rate,thereby intensifying convective heat transfer within the SAI chamber.However,the reduction inφalso leads to a significant increase in the required bleed air pressure and a higher entropy generation rate,indicating lower exergy efficiency.The nozzle angleθnotably affects the distribution of hot and cold spots on the lip surface of the SAI chamber.Increasingθfrom 0°to 20°reduces the maximum temperature difference on the anti-icing chamber surface by 60 K.展开更多
BACKGROUND Syphilis is an infectious disease caused by Treponema pallidum that can invade the central nervous system,causing encephalitis.Few cases of anti-N-methyl-Daspartate receptor autoimmune encephalitis(AE)secon...BACKGROUND Syphilis is an infectious disease caused by Treponema pallidum that can invade the central nervous system,causing encephalitis.Few cases of anti-N-methyl-Daspartate receptor autoimmune encephalitis(AE)secondary to neurosyphilis have been reported.We report a neurosyphilis patient with anti-γ-aminobutyric acid-B receptor(GABABR)AE.CASE SUMMARY A young man in his 30s who presented with acute epileptic status was admitted to a local hospital.He was diagnosed with neurosyphilis,according to serum and cerebrospinal fluid(CSF)tests for syphilis.After 14 d of antiepileptic treatment and anti-Treponema pallidum therapy with penicillin,epilepsy was controlled but serious cognitive impairment,behavioral,and serious psychiatric symptoms were observed.He was then transferred to our hospital.The Mini-Mental State Examination(MMSE)crude test results showed only 2 points.Cranial magnetic resonance imaging revealed significant cerebral atrophy and multiple fluidattenuated inversion recovery high signals in the white matter surrounding both lateral ventricles,left amygdala and bilateral thalami.Anti-GABABR antibodies were discovered in CSF(1:3.2)and serum(1:100).The patient was diagnosed with neurosyphilis complicated by anti-GABABR AE,and received methylprednisolone and penicillin.Following treatment,his mental symptoms were alleviated.Cognitive impairment was significantly improved,with a MMSE of 8 points.Serum anti-GABABR antibody titer decreased to 1:32.The patient received methylprednisolone and penicillin after discharge.Three months later,the patient’s condition was stable,but the serum anti-GABABR antibody titer was 1:100.CONCLUSION This patient with neurosyphilis combined with anti-GABABR encephalitis benefited from immunotherapy.展开更多
In current patterns of media, old media and new media both prevail in modern society. Since media is a too broad term, this article will focus on the film industry. It will state whether the imperialism of Hollywood, ...In current patterns of media, old media and new media both prevail in modern society. Since media is a too broad term, this article will focus on the film industry. It will state whether the imperialism of Hollywood, a typical media giant, exists in the film industry and its influence on cultural globalization.展开更多
When medium itself has become message and gets disproportionate importance, the substance of the message gets pushed back. Influence of visual media on culture and people has been increasing day by day. Though it infl...When medium itself has become message and gets disproportionate importance, the substance of the message gets pushed back. Influence of visual media on culture and people has been increasing day by day. Though it influences people both positively and negatively, it affects more adversely than otherwise as the media has begun affecting the very identity of the masses and reduced them to passive subjects. The plurality of culture and identity of people in the third world countries are at stake. Strong resistance of the masses supported by a new order of international information is the need of the hour. Keeping this in mind, a revisit to the influence of visual media is deliberated here.展开更多
English linguistic imperialism is that the dominance of English as a world language and sets out to analysis how the language became so dominant. It looks at the spread of English, in order to ascertain whether the la...English linguistic imperialism is that the dominance of English as a world language and sets out to analysis how the language became so dominant. It looks at the spread of English, in order to ascertain whether the language has actively promoted as aninstrument of the foreign policy of the major English-speaking states, and if so, in what ways.Last, it will provide a description of language pedagogy, the scientific study of language learning and language teaching, has beenisolated from the social sciences and political disconnection.展开更多
English,as a global language,has expanded on many countries and fields.With the spread of English,scholars started to look at the influence it has brought to culture,economy,and politics.Even though English is accepte...English,as a global language,has expanded on many countries and fields.With the spread of English,scholars started to look at the influence it has brought to culture,economy,and politics.Even though English is accepted by different countries,the debate on its spread and influence is always in a hot spot.As linguistic imperialism being used to describe the position of English,it is also contentious.展开更多
With the marked globalization of cultural transmission and wide opening of the Chinese market, Chinese movie & TV industry faces unprecedented opportunities and challenges as well. What we face is not only the eno...With the marked globalization of cultural transmission and wide opening of the Chinese market, Chinese movie & TV industry faces unprecedented opportunities and challenges as well. What we face is not only the enormous impact of the economic form of film industry; what is more, in the field of culture, we will also face the enormous impact of"cultural imperialism". This paper focuses on the"cultural imperialism"existed in global especially American films. To counter the cultural empirical globalization of American films growing in great intensity, this paper discusses the theory of"culture rebounds"presented earliest in France. Moreover, under the influence of the theory especially in Chinese film circles, it makes research and analysis to deal with the present situation.展开更多
English spreading from a tiny scale to a global dimension, allowing countries and citizens to participate fully in global prosperity. English gradually becomes dominant in educational, political, economic and cultural...English spreading from a tiny scale to a global dimension, allowing countries and citizens to participate fully in global prosperity. English gradually becomes dominant in educational, political, economic and cultural aspects. Regarding the dominance of English as a neutral international language, rather than the evidence of linguistic imperialism can be controversial.展开更多
基金Supported by the National Natural Science Foundation of China(No.51801058)the Special Program for Guiding Local Science and Technology Development by the Central Government of Hubei Province(No.2019ZYYD006)the Education and Teaching Research Project of Hubei Polytechnic University(No.2021B01)。
文摘α-Fe_(2)O_(3)/epoxy resin composite superhydrophobic coating was prepared withα-Fe_(2)O_(3) nanoparticles and epoxy resin by spin coating method.The coating without epoxy resin has higher contact angle(CA)and lower ice adhesion strength(IAS),but the mechanical properties are poor.Theα-Fe_(2)O_(3)/epoxy resin composite superhydrophobic coating exhibits good mechanical durability.In addition,compared with the bare aluminum substrate,the Ecorr of the composite coating is positive and the Jcorr is lower.The inhibition efficiency of the composite coating is as high as 99.98%in 3.5 wt%NaCl solution.The difference in the microstructure caused by the two preparation methods leads to the changes in mechanical properties and corrosion resistance of composite superhydrophobic coating.
基金Shenyang Key Laboratory of Aircraft Icing and Ice Protection,Grant Number XFX20220303Education Department of Hunan Province,China,Grant Number 23A0504National Natural Science Foundation of China,Grant Number 52275108.
文摘The formation of ice on the leading edge of aircraft engines is a serious issue,as it can have catastrophic consequences.The Swirl Anti-Icing(SAI)system,driven by ejection,circulates hot fluid within a 360°annular chamber to heat the engine inlet lip surface and prevent icing.This study employs a validated Computational Fluid Dynamics(CFD)approach to study the impact of key geometric parameters of this system on flow and heat transfer characteristics within the anti-icing chamber.Additionally,the entropy generation rate and exergy efficiency are analyzed to assess the energy utilization in the system.The research findings indicate that,within the considered flow range,reducing the nozzle specific areaφfrom 0.03061 to 0.01083 can enhance the ejection coefficient by over 60.7%.This enhancement increases the air circulating rate,thereby intensifying convective heat transfer within the SAI chamber.However,the reduction inφalso leads to a significant increase in the required bleed air pressure and a higher entropy generation rate,indicating lower exergy efficiency.The nozzle angleθnotably affects the distribution of hot and cold spots on the lip surface of the SAI chamber.Increasingθfrom 0°to 20°reduces the maximum temperature difference on the anti-icing chamber surface by 60 K.
文摘BACKGROUND Syphilis is an infectious disease caused by Treponema pallidum that can invade the central nervous system,causing encephalitis.Few cases of anti-N-methyl-Daspartate receptor autoimmune encephalitis(AE)secondary to neurosyphilis have been reported.We report a neurosyphilis patient with anti-γ-aminobutyric acid-B receptor(GABABR)AE.CASE SUMMARY A young man in his 30s who presented with acute epileptic status was admitted to a local hospital.He was diagnosed with neurosyphilis,according to serum and cerebrospinal fluid(CSF)tests for syphilis.After 14 d of antiepileptic treatment and anti-Treponema pallidum therapy with penicillin,epilepsy was controlled but serious cognitive impairment,behavioral,and serious psychiatric symptoms were observed.He was then transferred to our hospital.The Mini-Mental State Examination(MMSE)crude test results showed only 2 points.Cranial magnetic resonance imaging revealed significant cerebral atrophy and multiple fluidattenuated inversion recovery high signals in the white matter surrounding both lateral ventricles,left amygdala and bilateral thalami.Anti-GABABR antibodies were discovered in CSF(1:3.2)and serum(1:100).The patient was diagnosed with neurosyphilis complicated by anti-GABABR AE,and received methylprednisolone and penicillin.Following treatment,his mental symptoms were alleviated.Cognitive impairment was significantly improved,with a MMSE of 8 points.Serum anti-GABABR antibody titer decreased to 1:32.The patient received methylprednisolone and penicillin after discharge.Three months later,the patient’s condition was stable,but the serum anti-GABABR antibody titer was 1:100.CONCLUSION This patient with neurosyphilis combined with anti-GABABR encephalitis benefited from immunotherapy.
文摘In current patterns of media, old media and new media both prevail in modern society. Since media is a too broad term, this article will focus on the film industry. It will state whether the imperialism of Hollywood, a typical media giant, exists in the film industry and its influence on cultural globalization.
文摘When medium itself has become message and gets disproportionate importance, the substance of the message gets pushed back. Influence of visual media on culture and people has been increasing day by day. Though it influences people both positively and negatively, it affects more adversely than otherwise as the media has begun affecting the very identity of the masses and reduced them to passive subjects. The plurality of culture and identity of people in the third world countries are at stake. Strong resistance of the masses supported by a new order of international information is the need of the hour. Keeping this in mind, a revisit to the influence of visual media is deliberated here.
文摘English linguistic imperialism is that the dominance of English as a world language and sets out to analysis how the language became so dominant. It looks at the spread of English, in order to ascertain whether the language has actively promoted as aninstrument of the foreign policy of the major English-speaking states, and if so, in what ways.Last, it will provide a description of language pedagogy, the scientific study of language learning and language teaching, has beenisolated from the social sciences and political disconnection.
文摘English,as a global language,has expanded on many countries and fields.With the spread of English,scholars started to look at the influence it has brought to culture,economy,and politics.Even though English is accepted by different countries,the debate on its spread and influence is always in a hot spot.As linguistic imperialism being used to describe the position of English,it is also contentious.
文摘With the marked globalization of cultural transmission and wide opening of the Chinese market, Chinese movie & TV industry faces unprecedented opportunities and challenges as well. What we face is not only the enormous impact of the economic form of film industry; what is more, in the field of culture, we will also face the enormous impact of"cultural imperialism". This paper focuses on the"cultural imperialism"existed in global especially American films. To counter the cultural empirical globalization of American films growing in great intensity, this paper discusses the theory of"culture rebounds"presented earliest in France. Moreover, under the influence of the theory especially in Chinese film circles, it makes research and analysis to deal with the present situation.
文摘English spreading from a tiny scale to a global dimension, allowing countries and citizens to participate fully in global prosperity. English gradually becomes dominant in educational, political, economic and cultural aspects. Regarding the dominance of English as a neutral international language, rather than the evidence of linguistic imperialism can be controversial.
