In order to realize the national rejuvenation,General Secretary Xi Jinping attaches great importance to the spiritual strength of struggle,and has repeatedly advocated that all people should exalt the spirit of strive...In order to realize the national rejuvenation,General Secretary Xi Jinping attaches great importance to the spiritual strength of struggle,and has repeatedly advocated that all people should exalt the spirit of strive on different occasions.According to his New Year’s greetings since 2014,Xi Jinping has illustrated the connotation of the spirit of enterprising,the necessity of carrying forward and the requirements for practicing the spirit of struggle from different perspectives,pointing out that all Chinese must keep in mind both domestic and international situations,strive in unity,work creative and industrious with the enthusiasm of seizing every minute,catch the opportunity and solve the problem,make substantial progress on the new journey to construct China into a great modern socialist country in all respects.展开更多
The performance of a strapdown inertial navigation system(SINS)largely depends on the accuracy and rapidness of the initial alignment.A novel anti-interference self-alignment algorithm by attitude optimization estimat...The performance of a strapdown inertial navigation system(SINS)largely depends on the accuracy and rapidness of the initial alignment.A novel anti-interference self-alignment algorithm by attitude optimization estimation for SINS on a rocking base is presented in this paper.The algorithm transforms the initial alignment into the initial attitude determination problem by using infinite vector observations to remove the angular motions,the SINS alignment is heuristically established as an optimiza-tion problem of finding the minimum eigenvector.In order to further improve the alignment precision,an adaptive recursive weighted least squares(ARWLS)curve fitting algorithm is used to fit the translational motion interference-contaminated reference vectors according to their time domain characteristics.Simulation studies and experimental results favorably demonstrate its rapidness,accuracy and robustness.展开更多
This paper presents the study and application of the electronic device anti-interference techniques underhigh voltage and/or heavy current electro-magnetic circumstance in power system.[
In the west,a viewpoint of evil human nature is accepted by most of critics.William Golding exposes this hideous nature in Lord of the Flies.This paper analyses the ugly human performances in details,and it also see t...In the west,a viewpoint of evil human nature is accepted by most of critics.William Golding exposes this hideous nature in Lord of the Flies.This paper analyses the ugly human performances in details,and it also see the force about justice from the novel.The force is fighting with the evilness all the time.Although the justice is in a passive position temporarily,it finally defeats the evil.展开更多
Zhang Ailin created so many various kinds of female charaters in her novels;females who own distinct characters and identities just have similar fates and struggles.This paper tries to probe into the similar fates and...Zhang Ailin created so many various kinds of female charaters in her novels;females who own distinct characters and identities just have similar fates and struggles.This paper tries to probe into the similar fates and struggles of two heroines with different identities in the same social background by analysing the novel Gimmal and Crumbs of Agalloch Eaglewood-the First Incense Burner from perspective of feminism.展开更多
When signal-to-interference ratio is low, the energy of strong interference leaked from the side lobe of beam pattern will infect the detection of weak target. Therefore, the beam pattern needs to be op...When signal-to-interference ratio is low, the energy of strong interference leaked from the side lobe of beam pattern will infect the detection of weak target. Therefore, the beam pattern needs to be optimized. The existing Dolph-Chebyshev weighting method can get the lowest side lobe level under given main lobe width, but for the other non-uniform circular array and nonlinear array, the low side lobe pattern needs to be designed specially. The second order cone programming optimization (SOCP) algorithm proposed in the paper transforms the optimization of the beam pattern into a standard convex optimization problem. Thus there is a paradigm to follow for any array formation, which not only achieves the purpose of Dolph-Chebyshev weighting, but also solves the problem of the increased side lobe when the signal is at end fire direction The simulation proves that the SOCP algorithm can detect the weak target better than the conventional beam forming.展开更多
An RF transceiver composed of a zero-IF receiver and a direct up-conversion transmitter for cognitive radio applications is presented. The adjustable channel filter array in the receiver is used to suppress adjacent c...An RF transceiver composed of a zero-IF receiver and a direct up-conversion transmitter for cognitive radio applications is presented. The adjustable channel filter array in the receiver is used to suppress adjacent channel interference in televisions signal coexistence environments. The low noise amplifier (LNA) with wide dynamic range and high linearity is employed to enhance the anti-interference competence of the zero-IF receiver. Meanwhile, the high linearity power amplifier (PA) .is used to promote the adjacent channel power ratio (ACPR) characteristic of the direct up-conversion transmitter. The measured error vector magnitude (EVM) results show that the anti-interference competence of the zero-IF receiver is dramatically enhanced by employing a channel filter array. The measured ACPR of the direct up-conversion transmitter is -47. 98 dBc on the channel centered at 714 MHz when the output power is 27 dBm.展开更多
To suppress the interference in the ultra-wideband (AI-UWB) system is a challenging problem. An anti-interference multiband orthogonal frequency-division multiplexing ultra-wideband (AI-UWB) system, based on sprea...To suppress the interference in the ultra-wideband (AI-UWB) system is a challenging problem. An anti-interference multiband orthogonal frequency-division multiplexing ultra-wideband (AI-UWB) system, based on spreading and interleaving is addressed. It will exploit the frequency diversity across the subcarriers and provide the robustness to narrow-band interference, by spreading the coded bit streams within each sub-band and interleaving across all sub-bands. Simulating results show that the spreading and interleaving provide about 5 dB to 10 dB advantages over the conventional multiband orthogonal frequency-division multiplexing ultra-wideband system in signal-to-interference ratio. Spreading and interleaving is an effective cure for enhancing the robustness to narrowband interference.展开更多
Shallow conductive heterogeneity can lead to static shifts ain the apparent resistivity sounding curve of controlled-source audio-frequency magnetotellurics(CSAMT).The static effect will shift the apparent resistivity...Shallow conductive heterogeneity can lead to static shifts ain the apparent resistivity sounding curve of controlled-source audio-frequency magnetotellurics(CSAMT).The static effect will shift the apparent resistivity curves along with axial log-log coordinates.Such an effect,if not properly processed,can distort the resistivity of rock formation and the depth of interfaces,and even make the geological structures unrecognizable.In this paper,we discuss the reasons and characteristics of the static shift and summarize the previous studies regarding static shift correction.Then,we propose the Guided Image Filtering algorithm to suppress static shifts in CSAMT.In detail,we use the multi-window superposition method to superimpose 1D signals into a 2D matrix image,which is subsequently processed with Guided Image Filtering.In the synthetic model study and field examples,the Guided Image Filtering algorithm has effectively corrected and suppressed static shifts,and finally improved the precision of data interpretation.展开更多
The Old Man and the Sea was an excellent novel written by the famous American novelist Ernest Hemingway and the novel led to the Nobel Prize which he won in 1954.The novel is a simple story about a Cuban fisherman San...The Old Man and the Sea was an excellent novel written by the famous American novelist Ernest Hemingway and the novel led to the Nobel Prize which he won in 1954.The novel is a simple story about a Cuban fisherman Santiago's struggle with a marlin and sharks on the sea.In fact it has deep meaning,which implies the struggle between one's ego and superego.Hemingway eulogizes the hero through the process of the struggle.The paper consists of three parts.The first part is the introduction to the writer and the novel.The second part analyzes the hero Santiago in details,including his struggle with the marlin and the sharks,his interest in the struggles.The third part is the conclusion that the hero Santiago's superego controls his ego in the struggle and he is a real winner.展开更多
This paper focuses on pioneer women's struggle through social restriction in O Pioneers? (1989) and My Antonia (1994) authored by Willa Cather, a famous American local color female writer. The purpose of the pap...This paper focuses on pioneer women's struggle through social restriction in O Pioneers? (1989) and My Antonia (1994) authored by Willa Cather, a famous American local color female writer. The purpose of the paper is to analyze the protagonists' struggle through social restrictions in 0 pioneers? and My Antonia, so as to analyze the situation pioneer women faced in American mid-west at that age. Women as cultural conservators and transmitters of civilization play integral parts in this respect. It is true that the morality system is set by the patriarchal society and restricts women's behavior. However, we must admit that when women stop functioning as civilization transmitters and cultural conservators, the world will go wrong seriously. In the two novels, hearty, generous women always create a nurturing and gracious atmosphere in their household. Practically, these women transmit the old civilization to the newly established homestead successfully展开更多
The 20th century is a century when both intra-national order and internationalorder were frequently changing. The struggles have never stopped focusingon setting order. Today with the East-west cold war over for 10 ye...The 20th century is a century when both intra-national order and internationalorder were frequently changing. The struggles have never stopped focusingon setting order. Today with the East-west cold war over for 10 years, there arestill strong appeals for peace and stability, and demands for establishing a newinternational order. The War on Kosovo in the end of the 20th century is a sig-nificant attempt from the U. S. and other major Western powers to set up a newworld order without caring whether by means of force or even of war. This展开更多
The Land (2001) is a powerful coming-of-age story by African-American writer Mildred D. Taylor. Through vividly depicting the mental and physical pains suffered by black people as well as the undying hope of protago...The Land (2001) is a powerful coming-of-age story by African-American writer Mildred D. Taylor. Through vividly depicting the mental and physical pains suffered by black people as well as the undying hope of protagonist Paul in the struggle of achieving social and economic independence by obtaining a land of his own, Mildred D. Taylor not only pungently exposes the evils of racism but also successfully builds up positive image of black character in The Land. Based on African American criticism theory and close reading of the text, the present paper aims at exploring the central themes of pain, struggle, and hope presented in the novel with the hope of interpreting the historical and realistic significance of the novel.展开更多
The article is devoted to the struggle for identity which has been intensified in the Russian social media in 2014 both on interpretation of the historical past and on the up-to-date situation, especially, Crimea even...The article is devoted to the struggle for identity which has been intensified in the Russian social media in 2014 both on interpretation of the historical past and on the up-to-date situation, especially, Crimea events. Authors suppose that as a result social media become a means of manipulation more than independent space with rizhoma nature. In 2011-2012 social media were the space of struggle between authority and political opposition. Today space of social media is looking polarized regarding polarization of society in respect of political order and Putin political course.展开更多
The spirit of Yanan is a valuable spirit of the Chinese Communist Party and the Chinese nation.It not only plays a major guiding role in the Chinese revolution and socialist construction,but also has important guiding...The spirit of Yanan is a valuable spirit of the Chinese Communist Party and the Chinese nation.It not only plays a major guiding role in the Chinese revolution and socialist construction,but also has important guiding significance for realizing the great Chinese dream.Read the spirit of Yanan,especially its self-reliance and hard struggle spirit makes me feel extraordinary deep,decided to write something around this spirit.展开更多
The Tianjin Light Industrial Products Import & Export Corporation was founded in 1953. It is an old enterprise with a long history and large scale, handling import and export business in northern China. Over the f...The Tianjin Light Industrial Products Import & Export Corporation was founded in 1953. It is an old enterprise with a long history and large scale, handling import and export business in northern China. Over the four decades, the corporation has got numerous export earnings for the state by constantly developing its overseas market, opening export channels, increasing varieties and specifications and improving the quality of commodities. It has boosted the development of domestic production enterprises for light industrial products and has achieved brilliant successes.展开更多
Automatic gauge control(AGC in the article)is the key technology of product thickness accuracy and flatness quality in modern cold rolling mill.Most traditional AGC control algorithms need stable external system condi...Automatic gauge control(AGC in the article)is the key technology of product thickness accuracy and flatness quality in modern cold rolling mill.Most traditional AGC control algorithms need stable external system conditions and hard to stabilize under complex interference that meets coverage requirements.This paper presents a new anti-interference strategy for AGC control of 20-Hi cold reversing mill.The proposed algorithm introduces a united dynamic weights algorithm of feed forward-mass flow to avoid the complex interference problem in AGC control,the relevant control strategy is provided to eliminate the adverse effects.At the same time,the D-value between feed forward-mass flow pre-computation and thickness measurement deviation is dynamic compared,the final gap position regulation is calculated by developing a set of united dynamic weights between feed forward control and mass flow control.Finally,the output of controllers is sent to actuator though a constant rate smoothing.The proposed strategy is compared with conventional AGC control on Experimental platform and project application,the results show that the proposed strategy is more stable than comparison method and majority of system uncertainty produced by mentioned interference is significantly eliminated.展开更多
文摘In order to realize the national rejuvenation,General Secretary Xi Jinping attaches great importance to the spiritual strength of struggle,and has repeatedly advocated that all people should exalt the spirit of strive on different occasions.According to his New Year’s greetings since 2014,Xi Jinping has illustrated the connotation of the spirit of enterprising,the necessity of carrying forward and the requirements for practicing the spirit of struggle from different perspectives,pointing out that all Chinese must keep in mind both domestic and international situations,strive in unity,work creative and industrious with the enthusiasm of seizing every minute,catch the opportunity and solve the problem,make substantial progress on the new journey to construct China into a great modern socialist country in all respects.
基金supported by the National Natural Science Foundation of China(41174162).
文摘The performance of a strapdown inertial navigation system(SINS)largely depends on the accuracy and rapidness of the initial alignment.A novel anti-interference self-alignment algorithm by attitude optimization estimation for SINS on a rocking base is presented in this paper.The algorithm transforms the initial alignment into the initial attitude determination problem by using infinite vector observations to remove the angular motions,the SINS alignment is heuristically established as an optimiza-tion problem of finding the minimum eigenvector.In order to further improve the alignment precision,an adaptive recursive weighted least squares(ARWLS)curve fitting algorithm is used to fit the translational motion interference-contaminated reference vectors according to their time domain characteristics.Simulation studies and experimental results favorably demonstrate its rapidness,accuracy and robustness.
文摘This paper presents the study and application of the electronic device anti-interference techniques underhigh voltage and/or heavy current electro-magnetic circumstance in power system.[
文摘In the west,a viewpoint of evil human nature is accepted by most of critics.William Golding exposes this hideous nature in Lord of the Flies.This paper analyses the ugly human performances in details,and it also see the force about justice from the novel.The force is fighting with the evilness all the time.Although the justice is in a passive position temporarily,it finally defeats the evil.
文摘Zhang Ailin created so many various kinds of female charaters in her novels;females who own distinct characters and identities just have similar fates and struggles.This paper tries to probe into the similar fates and struggles of two heroines with different identities in the same social background by analysing the novel Gimmal and Crumbs of Agalloch Eaglewood-the First Incense Burner from perspective of feminism.
基金Special Item of National Major Scientific Apparatus Development(No.2013YQ140431)
文摘When signal-to-interference ratio is low, the energy of strong interference leaked from the side lobe of beam pattern will infect the detection of weak target. Therefore, the beam pattern needs to be optimized. The existing Dolph-Chebyshev weighting method can get the lowest side lobe level under given main lobe width, but for the other non-uniform circular array and nonlinear array, the low side lobe pattern needs to be designed specially. The second order cone programming optimization (SOCP) algorithm proposed in the paper transforms the optimization of the beam pattern into a standard convex optimization problem. Thus there is a paradigm to follow for any array formation, which not only achieves the purpose of Dolph-Chebyshev weighting, but also solves the problem of the increased side lobe when the signal is at end fire direction The simulation proves that the SOCP algorithm can detect the weak target better than the conventional beam forming.
基金The National Natural Science Foundation of China(No.60621002)the National High Technology Research and Development Program of China(863 Program)(No.2009AA011801)
文摘An RF transceiver composed of a zero-IF receiver and a direct up-conversion transmitter for cognitive radio applications is presented. The adjustable channel filter array in the receiver is used to suppress adjacent channel interference in televisions signal coexistence environments. The low noise amplifier (LNA) with wide dynamic range and high linearity is employed to enhance the anti-interference competence of the zero-IF receiver. Meanwhile, the high linearity power amplifier (PA) .is used to promote the adjacent channel power ratio (ACPR) characteristic of the direct up-conversion transmitter. The measured error vector magnitude (EVM) results show that the anti-interference competence of the zero-IF receiver is dramatically enhanced by employing a channel filter array. The measured ACPR of the direct up-conversion transmitter is -47. 98 dBc on the channel centered at 714 MHz when the output power is 27 dBm.
基金the National "863" High Technology Research Program of China (2005AA123320)Universities Natural Science Research Project of Jiangsu Province (05KJB510101).
文摘To suppress the interference in the ultra-wideband (AI-UWB) system is a challenging problem. An anti-interference multiband orthogonal frequency-division multiplexing ultra-wideband (AI-UWB) system, based on spreading and interleaving is addressed. It will exploit the frequency diversity across the subcarriers and provide the robustness to narrow-band interference, by spreading the coded bit streams within each sub-band and interleaving across all sub-bands. Simulating results show that the spreading and interleaving provide about 5 dB to 10 dB advantages over the conventional multiband orthogonal frequency-division multiplexing ultra-wideband system in signal-to-interference ratio. Spreading and interleaving is an effective cure for enhancing the robustness to narrowband interference.
基金sponsored by the Basic Science Center Project of National Natural Science Foundation of China(72088101)。
文摘Shallow conductive heterogeneity can lead to static shifts ain the apparent resistivity sounding curve of controlled-source audio-frequency magnetotellurics(CSAMT).The static effect will shift the apparent resistivity curves along with axial log-log coordinates.Such an effect,if not properly processed,can distort the resistivity of rock formation and the depth of interfaces,and even make the geological structures unrecognizable.In this paper,we discuss the reasons and characteristics of the static shift and summarize the previous studies regarding static shift correction.Then,we propose the Guided Image Filtering algorithm to suppress static shifts in CSAMT.In detail,we use the multi-window superposition method to superimpose 1D signals into a 2D matrix image,which is subsequently processed with Guided Image Filtering.In the synthetic model study and field examples,the Guided Image Filtering algorithm has effectively corrected and suppressed static shifts,and finally improved the precision of data interpretation.
文摘The Old Man and the Sea was an excellent novel written by the famous American novelist Ernest Hemingway and the novel led to the Nobel Prize which he won in 1954.The novel is a simple story about a Cuban fisherman Santiago's struggle with a marlin and sharks on the sea.In fact it has deep meaning,which implies the struggle between one's ego and superego.Hemingway eulogizes the hero through the process of the struggle.The paper consists of three parts.The first part is the introduction to the writer and the novel.The second part analyzes the hero Santiago in details,including his struggle with the marlin and the sharks,his interest in the struggles.The third part is the conclusion that the hero Santiago's superego controls his ego in the struggle and he is a real winner.
文摘This paper focuses on pioneer women's struggle through social restriction in O Pioneers? (1989) and My Antonia (1994) authored by Willa Cather, a famous American local color female writer. The purpose of the paper is to analyze the protagonists' struggle through social restrictions in 0 pioneers? and My Antonia, so as to analyze the situation pioneer women faced in American mid-west at that age. Women as cultural conservators and transmitters of civilization play integral parts in this respect. It is true that the morality system is set by the patriarchal society and restricts women's behavior. However, we must admit that when women stop functioning as civilization transmitters and cultural conservators, the world will go wrong seriously. In the two novels, hearty, generous women always create a nurturing and gracious atmosphere in their household. Practically, these women transmit the old civilization to the newly established homestead successfully
文摘The 20th century is a century when both intra-national order and internationalorder were frequently changing. The struggles have never stopped focusingon setting order. Today with the East-west cold war over for 10 years, there arestill strong appeals for peace and stability, and demands for establishing a newinternational order. The War on Kosovo in the end of the 20th century is a sig-nificant attempt from the U. S. and other major Western powers to set up a newworld order without caring whether by means of force or even of war. This
文摘The Land (2001) is a powerful coming-of-age story by African-American writer Mildred D. Taylor. Through vividly depicting the mental and physical pains suffered by black people as well as the undying hope of protagonist Paul in the struggle of achieving social and economic independence by obtaining a land of his own, Mildred D. Taylor not only pungently exposes the evils of racism but also successfully builds up positive image of black character in The Land. Based on African American criticism theory and close reading of the text, the present paper aims at exploring the central themes of pain, struggle, and hope presented in the novel with the hope of interpreting the historical and realistic significance of the novel.
文摘The article is devoted to the struggle for identity which has been intensified in the Russian social media in 2014 both on interpretation of the historical past and on the up-to-date situation, especially, Crimea events. Authors suppose that as a result social media become a means of manipulation more than independent space with rizhoma nature. In 2011-2012 social media were the space of struggle between authority and political opposition. Today space of social media is looking polarized regarding polarization of society in respect of political order and Putin political course.
文摘The spirit of Yanan is a valuable spirit of the Chinese Communist Party and the Chinese nation.It not only plays a major guiding role in the Chinese revolution and socialist construction,but also has important guiding significance for realizing the great Chinese dream.Read the spirit of Yanan,especially its self-reliance and hard struggle spirit makes me feel extraordinary deep,decided to write something around this spirit.
文摘The Tianjin Light Industrial Products Import & Export Corporation was founded in 1953. It is an old enterprise with a long history and large scale, handling import and export business in northern China. Over the four decades, the corporation has got numerous export earnings for the state by constantly developing its overseas market, opening export channels, increasing varieties and specifications and improving the quality of commodities. It has boosted the development of domestic production enterprises for light industrial products and has achieved brilliant successes.
文摘Automatic gauge control(AGC in the article)is the key technology of product thickness accuracy and flatness quality in modern cold rolling mill.Most traditional AGC control algorithms need stable external system conditions and hard to stabilize under complex interference that meets coverage requirements.This paper presents a new anti-interference strategy for AGC control of 20-Hi cold reversing mill.The proposed algorithm introduces a united dynamic weights algorithm of feed forward-mass flow to avoid the complex interference problem in AGC control,the relevant control strategy is provided to eliminate the adverse effects.At the same time,the D-value between feed forward-mass flow pre-computation and thickness measurement deviation is dynamic compared,the final gap position regulation is calculated by developing a set of united dynamic weights between feed forward control and mass flow control.Finally,the output of controllers is sent to actuator though a constant rate smoothing.The proposed strategy is compared with conventional AGC control on Experimental platform and project application,the results show that the proposed strategy is more stable than comparison method and majority of system uncertainty produced by mentioned interference is significantly eliminated.