Substrate is a critical environmental factor affecting the activity of bivalves. To examine the effect of the substrate component on the growth and survival of juvenile sunray surf clam(Mactra chinensis Philippi), a s...Substrate is a critical environmental factor affecting the activity of bivalves. To examine the effect of the substrate component on the growth and survival of juvenile sunray surf clam(Mactra chinensis Philippi), a series of short-term experiments were conducted using a variety of substrates with different ratios of sand to mud. The experimental group cultured without substrate showed poor survival, with all juveniles died after day 20. The juveniles cultured in mud without sand showed a lower survival rate(25.54% ± 0.40% on day 45) than those in other groups. The juveniles cultured in sand without mud, or the mixtures of sand and mud with a ratio of 1:1 and 2:1, respectively, exhibited modest survival at day 45. Maximal weight gain rate(WGR), shell length growth rate(LGR), and specific growth rate(SGR) were observed when the sand concentration was 61.97%, 77.69%, and 64.64%, respectively. As the fast growth and high survival were observed when the sand to mud ratio was 1:1(50% sand) and 2:1(67% sand), a sand concentration of more than 50% is optimal. The optimal concentration of sand in the substrate for rearing juvenile sunray surf clams was 67% which resulted in the fastest growth and highest survival. These results can be used to developing a nursery/farming technique of improving the yield of sunray surf clams.展开更多
The criteria on separation cutoff for birth and death chains were obtained by Diaconis and Saloff-Coste in 2006. These criteria are involving all eigenvalues. In this paper, we obtain the explicit criterion, which dep...The criteria on separation cutoff for birth and death chains were obtained by Diaconis and Saloff-Coste in 2006. These criteria are involving all eigenvalues. In this paper, we obtain the explicit criterion, which depends only on the birth and death rates. Furthermore, we present two ways to estimate moments of the fastest strong stationary time and then give another but equivalent criterion explicitly.展开更多
We have demonstrated the application of the world’s fastest supercomputer Fugaku located in Japan to select the COVID-19 drugs and stopping the pandemic spread. Using computer simulation out of 2128 potential drug ca...We have demonstrated the application of the world’s fastest supercomputer Fugaku located in Japan to select the COVID-19 drugs and stopping the pandemic spread. Using computer simulation out of 2128 potential drug candidates, the world’s fastest supercomputer picked 30 most effective and potential drugs. Twelve of them are under clinical trials outside Japan;some are being tested in Japan. The computer reduced the computation time from one year to 10 days when compared to second superfast computer of the world. Fugaku supercomputer was employed to know the behavior of airborne aerosol COVID-19 virus. 3Cs were suggested: avoid closed and crowded spaces and contacts to stop the pandemic spread. The progress in vaccine development and proper use and type of mask has also been described in this article. The article will benefit greatly to stop spreading and treating the pandemic COVID-19.展开更多
With over a thousand emoji pictures to represent our words, let’s take a closer look at this fastgrowing language.According to Professor Vyv Evans of Bangor University, Emoji is the UK’s fastest-growing language–ev...With over a thousand emoji pictures to represent our words, let’s take a closer look at this fastgrowing language.According to Professor Vyv Evans of Bangor University, Emoji is the UK’s fastest-growing language–evolving faster than any language in history. These little electronic images started life in Japanese mobile phones in the 90s and are now hugely popular.展开更多
China remains one of the most attractive destinations for foreign direct investment in the world.oOn the surface it looks like life is getting more difficult for foreign enterprises in China.Although China remains one...China remains one of the most attractive destinations for foreign direct investment in the world.oOn the surface it looks like life is getting more difficult for foreign enterprises in China.Although China remains one f the fastest growing economies in the world,double digit growth has been re-placed by 7.7 percent growth in 2013.展开更多
Objective To study the epidemiological characteristics of diabetes,and to provide effective prevention and intervention strategies for diabetes in Zhejiang Province.Methods Descriptive epidemiological method was used ...Objective To study the epidemiological characteristics of diabetes,and to provide effective prevention and intervention strategies for diabetes in Zhejiang Province.Methods Descriptive epidemiological method was used to analyze the surveillance data of diabetes from 2007 to2012.Results 272 534 cases of newly onset展开更多
在《大学英语》精读教材第三册第十单元“The Fantastic Spurt in Tech-nology”课文中有如下几句话: It has been pointed out,for example,that in 6000 BC the fastest trans-portation available to man over long distances was th...在《大学英语》精读教材第三册第十单元“The Fantastic Spurt in Tech-nology”课文中有如下几句话: It has been pointed out,for example,that in 6000 BC the fastest trans-portation available to man over long distances was the camel caravan,averag-ing eight miles per hour(mph).譬如,有人指出,在公元前6000年的时候,人类远距离交通的最快手段是骆驼运输队,平均每小时8英里。——p.展开更多
Saudi Basic Industries Corporation(SABIC)is further strengthening its leadership posi-tion in China,the world’s most importantand fastest growing polymers market.SABIC is the largest exhibitor
A new DuPont Performance Coatings plant hasbegun manufacturing operations in the Jiading dis-trict of Shanghai."The on-time opening of the Jiading plant is another major
近日,雅马哈发布了入门级儿童越野车YZ65的2018款,并宣布将于2018年5月22日起开始在日本上市销售。
雅马哈YZ65以＂MY FIRST FASTEST BLUE BIKE （我的第一辆最快的蓝色越野车）＂为理念进行设计,在1973年的初代YZ250面世后,经历了40...近日,雅马哈发布了入门级儿童越野车YZ65的2018款,并宣布将于2018年5月22日起开始在日本上市销售。
雅马哈YZ65以＂MY FIRST FASTEST BLUE BIKE （我的第一辆最快的蓝色越野车）＂为理念进行设计,在1973年的初代YZ250面世后,经历了40多年的技术研发,是一款定位于体重50kg以下的儿童专用的越野摩托车。展开更多
1.to knock out:使昏迷不醒;极度吸引。out是副词,宾语可置于knock与out之间。knockout是由to knock out派生出的名词。如:The prizefighter knocked out his opponent with one punch in the first five seconds of the first round. I...1.to knock out:使昏迷不醒;极度吸引。out是副词,宾语可置于knock与out之间。knockout是由to knock out派生出的名词。如:The prizefighter knocked out his opponent with one punch in the first five seconds of the first round. It was the fastest knockout in boxing history.Linda’s beautiful appearance and slender figure really knock me out. Isn’t she a real knockout tonight? 2.to knock oneself out:非常努力;(过于努力)使筋疲力尽。如:展开更多
Glyphosate as a high-effect,low-toxicity and broad-spectrum herbicide has become the pesticide variety with the fastest con-sumption growth and the greatest outputin
阅读地带A Until the 1980s,the American homeless population was made up of mainly older males.Today,homelessness strikes much younger part of the society.In fact,a 25-city survey by the US Conference of Mayors in 2013f...阅读地带A Until the 1980s,the American homeless population was made up of mainly older males.Today,homelessness strikes much younger part of the society.In fact,a 25-city survey by the US Conference of Mayors in 2013found that families with children made up the fastest growing part of the homeless population.Many homeless展开更多
Elevators are one of the most important elements of vertical communication used in buildings.Especially in recent times,where high and high rise buildings have become a modern architectural phenomenon and the spread o...Elevators are one of the most important elements of vertical communication used in buildings.Especially in recent times,where high and high rise buildings have become a modern architectural phenomenon and the spread of architecture has become a feature of the age.Hence,the research discusses the technique of installing elevators in buildings.A general introduction to elevators and their types will be discussed,as well as a historical overview of the beginning of the idea of the elevator and the first buildings that were used.The technique of installing the elevator inside the building explained with the images shown components elevator.Also it will mention several speeds of modern elevators used in buildings,the world’s fastest elevator,ultra-rope technology and the reasons for choosing this technique in elevator components in high-rise buildings which may be used in the space elevator that will connect earth and space.As well it shows features of the wire used in the elevators of the Burj-Khalifa,the highest skyscraper in the world.Then it mentions a number of the most recent and newest elevators in the world,then research results and references.展开更多
A pulsar, PSR 1937+214, with rotational frequency of 642 Hz was newly discovered by Arecibo Observator in Puerto Rico in November, 1982. It has the fastest rotational frequency among all the found pulsars. The discove...A pulsar, PSR 1937+214, with rotational frequency of 642 Hz was newly discovered by Arecibo Observator in Puerto Rico in November, 1982. It has the fastest rotational frequency among all the found pulsars. The discovery of the pulsar shocked the astrophysical world, and attracted a number of gravitational wave (GW) researchers. Because this pulsar radiates GW at a frequency of 1284 Hz, it is expected that the Weber-type antenna, L, the sound velocity V_s and the frequency of the detected GWv, have the relationship l-V_a/2v. The antenna for this pulsar is therefore required to have a length of 195 cm. If the GW radiation is strong enough, under the realizable conditions of great mass antenna and low-temperature ambient, using the method of展开更多
基金supported by the earmarked fund for Modern Agro-industry Technology Research System (CARS48)grants from the ‘863’ Project of China (2012 AA10AA400)
文摘Substrate is a critical environmental factor affecting the activity of bivalves. To examine the effect of the substrate component on the growth and survival of juvenile sunray surf clam(Mactra chinensis Philippi), a series of short-term experiments were conducted using a variety of substrates with different ratios of sand to mud. The experimental group cultured without substrate showed poor survival, with all juveniles died after day 20. The juveniles cultured in mud without sand showed a lower survival rate(25.54% ± 0.40% on day 45) than those in other groups. The juveniles cultured in sand without mud, or the mixtures of sand and mud with a ratio of 1:1 and 2:1, respectively, exhibited modest survival at day 45. Maximal weight gain rate(WGR), shell length growth rate(LGR), and specific growth rate(SGR) were observed when the sand concentration was 61.97%, 77.69%, and 64.64%, respectively. As the fast growth and high survival were observed when the sand to mud ratio was 1:1(50% sand) and 2:1(67% sand), a sand concentration of more than 50% is optimal. The optimal concentration of sand in the substrate for rearing juvenile sunray surf clams was 67% which resulted in the fastest growth and highest survival. These results can be used to developing a nursery/farming technique of improving the yield of sunray surf clams.
基金Acknowledgements This work was supported in part by 985 Project, 973 Project （No. 2011CB808000）, the National Natural Science Foundation of China （Grant No. 11131003）, the Specialized Research Fund for the Doctoral Program of Higher Education （No. 20100003110005）, and the Fundamental Research Funds for the Central Universities.
文摘The criteria on separation cutoff for birth and death chains were obtained by Diaconis and Saloff-Coste in 2006. These criteria are involving all eigenvalues. In this paper, we obtain the explicit criterion, which depends only on the birth and death rates. Furthermore, we present two ways to estimate moments of the fastest strong stationary time and then give another but equivalent criterion explicitly.
文摘We have demonstrated the application of the world’s fastest supercomputer Fugaku located in Japan to select the COVID-19 drugs and stopping the pandemic spread. Using computer simulation out of 2128 potential drug candidates, the world’s fastest supercomputer picked 30 most effective and potential drugs. Twelve of them are under clinical trials outside Japan;some are being tested in Japan. The computer reduced the computation time from one year to 10 days when compared to second superfast computer of the world. Fugaku supercomputer was employed to know the behavior of airborne aerosol COVID-19 virus. 3Cs were suggested: avoid closed and crowded spaces and contacts to stop the pandemic spread. The progress in vaccine development and proper use and type of mask has also been described in this article. The article will benefit greatly to stop spreading and treating the pandemic COVID-19.
文摘With over a thousand emoji pictures to represent our words, let’s take a closer look at this fastgrowing language.According to Professor Vyv Evans of Bangor University, Emoji is the UK’s fastest-growing language–evolving faster than any language in history. These little electronic images started life in Japanese mobile phones in the 90s and are now hugely popular.
文摘China remains one of the most attractive destinations for foreign direct investment in the world.oOn the surface it looks like life is getting more difficult for foreign enterprises in China.Although China remains one f the fastest growing economies in the world,double digit growth has been re-placed by 7.7 percent growth in 2013.
文摘Objective To study the epidemiological characteristics of diabetes,and to provide effective prevention and intervention strategies for diabetes in Zhejiang Province.Methods Descriptive epidemiological method was used to analyze the surveillance data of diabetes from 2007 to2012.Results 272 534 cases of newly onset
文摘在《大学英语》精读教材第三册第十单元“The Fantastic Spurt in Tech-nology”课文中有如下几句话: It has been pointed out,for example,that in 6000 BC the fastest trans-portation available to man over long distances was the camel caravan,averag-ing eight miles per hour(mph).譬如,有人指出,在公元前6000年的时候,人类远距离交通的最快手段是骆驼运输队,平均每小时8英里。——p.
文摘Saudi Basic Industries Corporation(SABIC)is further strengthening its leadership posi-tion in China,the world’s most importantand fastest growing polymers market.SABIC is the largest exhibitor
文摘A new DuPont Performance Coatings plant hasbegun manufacturing operations in the Jiading dis-trict of Shanghai."The on-time opening of the Jiading plant is another major
文摘近日,雅马哈发布了入门级儿童越野车YZ65的2018款,并宣布将于2018年5月22日起开始在日本上市销售。
雅马哈YZ65以＂MY FIRST FASTEST BLUE BIKE （我的第一辆最快的蓝色越野车）＂为理念进行设计,在1973年的初代YZ250面世后,经历了40多年的技术研发,是一款定位于体重50kg以下的儿童专用的越野摩托车。
文摘1.to knock out:使昏迷不醒;极度吸引。out是副词,宾语可置于knock与out之间。knockout是由to knock out派生出的名词。如:The prizefighter knocked out his opponent with one punch in the first five seconds of the first round. It was the fastest knockout in boxing history.Linda’s beautiful appearance and slender figure really knock me out. Isn’t she a real knockout tonight? 2.to knock oneself out:非常努力;(过于努力)使筋疲力尽。如:
文摘Glyphosate as a high-effect,low-toxicity and broad-spectrum herbicide has become the pesticide variety with the fastest con-sumption growth and the greatest outputin
文摘阅读地带A Until the 1980s,the American homeless population was made up of mainly older males.Today,homelessness strikes much younger part of the society.In fact,a 25-city survey by the US Conference of Mayors in 2013found that families with children made up the fastest growing part of the homeless population.Many homeless
文摘Elevators are one of the most important elements of vertical communication used in buildings.Especially in recent times,where high and high rise buildings have become a modern architectural phenomenon and the spread of architecture has become a feature of the age.Hence,the research discusses the technique of installing elevators in buildings.A general introduction to elevators and their types will be discussed,as well as a historical overview of the beginning of the idea of the elevator and the first buildings that were used.The technique of installing the elevator inside the building explained with the images shown components elevator.Also it will mention several speeds of modern elevators used in buildings,the world’s fastest elevator,ultra-rope technology and the reasons for choosing this technique in elevator components in high-rise buildings which may be used in the space elevator that will connect earth and space.As well it shows features of the wire used in the elevators of the Burj-Khalifa,the highest skyscraper in the world.Then it mentions a number of the most recent and newest elevators in the world,then research results and references.
文摘A pulsar, PSR 1937+214, with rotational frequency of 642 Hz was newly discovered by Arecibo Observator in Puerto Rico in November, 1982. It has the fastest rotational frequency among all the found pulsars. The discovery of the pulsar shocked the astrophysical world, and attracted a number of gravitational wave (GW) researchers. Because this pulsar radiates GW at a frequency of 1284 Hz, it is expected that the Weber-type antenna, L, the sound velocity V_s and the frequency of the detected GWv, have the relationship l-V_a/2v. The antenna for this pulsar is therefore required to have a length of 195 cm. If the GW radiation is strong enough, under the realizable conditions of great mass antenna and low-temperature ambient, using the method of
