You’ve built a great web site.It’s well designed,it encourages customer interaction,and it’s filledwith compelling,well-organized content.Now comes the tough reality:Creating a great site doesn’tautomatically mean...You’ve built a great web site.It’s well designed,it encourages customer interaction,and it’s filledwith compelling,well-organized content.Now comes the tough reality:Creating a great site doesn’tautomatically mean customers will visit it.With millions of web sites today,chances are slim that a customerwill randomly happen onto your site.That’s why it’s imperative that you use many strategies to get your web site noticed by the morethan 100 million people who now surf the Web.Here are seven ideas to help get you started:展开更多
Although ray tracing produces high-fidelity, realistic images, it is considered computationally burdensome when implemented on a high rendering rate system. Perception-driven rendering techniques generate images with ...Although ray tracing produces high-fidelity, realistic images, it is considered computationally burdensome when implemented on a high rendering rate system. Perception-driven rendering techniques generate images with minimal noise and distortion that are generally acceptable to the human visual system, thereby reducing rendering costs. In this paper, we introduce a perception-entropy-driven temporal reusing method to accelerate real-time ray tracing. We first build a just noticeable difference(JND) model to represent the uncertainty of ray samples and image space masking effects. Then, we expand the shading gradient through gradient max-pooling and gradient filtering to enlarge the visual receipt field. Finally, we dynamically optimize reusable time segments to improve the accuracy of temporal reusing. Compared with Monte Carlo ray tracing, our algorithm enhances frames per second(fps) by 1.93× to 2.96× at 8 to 16 samples per pixel, significantly accelerating the Monte Carlo ray tracing process while maintaining visual quality.展开更多
Brand awareness gains prominence in Suzhou Industrial Park Chinese mantrfacturers have long been the original equipment manufactur- ers for their foreign counterparts due to a lack of innovation and world- known brand...Brand awareness gains prominence in Suzhou Industrial Park Chinese mantrfacturers have long been the original equipment manufactur- ers for their foreign counterparts due to a lack of innovation and world- known brands.But signs point to a change in this department,where manufacturers in Suzhou are realizing that branding is no longer just a fancy business term,but a very real survival necessity.展开更多
This paper presents an investigation on the effect of JPEG compression on the similarity between the target image and the background,where the similarity is further used to determine the degree of clutter in the image...This paper presents an investigation on the effect of JPEG compression on the similarity between the target image and the background,where the similarity is further used to determine the degree of clutter in the image.Four new clutter metrics based on image quality assessment are introduced,among which the Haar wavelet-based perceptual similarity index,known as HaarPSI,provides the best target acquisition prediction results.It is shown that the similarity between the target and the background at the boundary between visually lossless and visually lossy compression does not change significantly compared to the case when an uncompressed image is used.In future work,through subjective tests,it is necessary to check whether this presence of compression at the threshold of just noticeable differences will affect the human target acquisition performance.Similarity values are compared with the results of subjective tests of the well-known target Search_2 database,where the degree of agreement between objective and subjective scores,measured through linear correlation,reached a value of 90%.展开更多
It was shown that the level of cells with chromo-some aberration was elevated in a patient withopisthorchiasis in addition to this the possibi-lity of canceraus hepatic transformation increasedsharply.The investigatio...It was shown that the level of cells with chromo-some aberration was elevated in a patient withopisthorchiasis in addition to this the possibi-lity of canceraus hepatic transformation increasedsharply.The investigation of biotransformativeactivity of S-9,fraction of microsomes展开更多
The methods of in vitro and in vivo-in vitro combinationassay for autoradiographic detection of unscheduled DNAsynthesis(UDS)induced by chemical carcinogens wasestablished.To estimate the reliability of these assays,U...The methods of in vitro and in vivo-in vitro combinationassay for autoradiographic detection of unscheduled DNAsynthesis(UDS)induced by chemical carcinogens wasestablished.To estimate the reliability of these assays,UDS in tissues slices was measured with the establishedmethods after exposure to MNNG and dimethylnitrosamine(DMN)in vitro or in vivo respectively.To study thesusceptibility of various tissues to chemicals,UDS展开更多
A series of studies and surveys on the hazard identification of syntheticdetergents LAS & AEO were conducted.They are the chief ingredients of tootonnage washing formuiations and main polltant in surface water.Res...A series of studies and surveys on the hazard identification of syntheticdetergents LAS & AEO were conducted.They are the chief ingredients of tootonnage washing formuiations and main polltant in surface water.Resultsare summarized as the followings:1) Low acute and chronic toxicities,thecummulative effect was negligible;2) Essentially negative in 5 short termgenetotoxic tests;3) Anti-mutagenic effect has been shown in five in vitroand in vivo tests;4) No evidence of malignant transformation has展开更多
Apparent discrepancy exists between Schmidt's Noticing Hypothesis and Krashen's Input Hypothesis. Whilst Krashen highlights the importance of comprehensible input and asserts that language is acquired unconcio...Apparent discrepancy exists between Schmidt's Noticing Hypothesis and Krashen's Input Hypothesis. Whilst Krashen highlights the importance of comprehensible input and asserts that language is acquired unconciously, the notion of conscious learning has gained wide support from Schmidt and other researchers. They argue that noticing enhances second language development as one crucial level of consciousness. By reviewing the theoretical constructs that underlie the role of noticing, this paper aims to justify the role of noticing as one crucial level of consciousness in enhancing second language learning.展开更多
"Noticing"is emphasized for its great influence on second language learning. Based on the previous related studies,this paper attempts to apply noticing theory to English writing teaching and learning in Chi..."Noticing"is emphasized for its great influence on second language learning. Based on the previous related studies,this paper attempts to apply noticing theory to English writing teaching and learning in China by means of the enlargement of input,the implement of output-oriented activities and the focus on feedback.展开更多
I was shopping at a department store and had just boardedthe down escalator when I noticed a woman standing to the side.She looked about 65,and her expression told me she was scared.Iturned toward her and asked,“Do y...I was shopping at a department store and had just boardedthe down escalator when I noticed a woman standing to the side.She looked about 65,and her expression told me she was scared.Iturned toward her and asked,“Do you need help?”展开更多
Speaker A:I’ve noticed that many people who’ve learned to speak aforeign language don’t know how to say the letters of that language.They don’t know its alphabet.Speaker B.Well,you don’t really have to know how t...Speaker A:I’ve noticed that many people who’ve learned to speak aforeign language don’t know how to say the letters of that language.They don’t know its alphabet.Speaker B.Well,you don’t really have to know how to say the展开更多
One day in 1848 a carpenter named Marshall,who worked ina saw mill on the American River in California,made a remarkablediscovery.He noticed some bright yellow particles in the water,bent down to pick them up and took...One day in 1848 a carpenter named Marshall,who worked ina saw mill on the American River in California,made a remarkablediscovery.He noticed some bright yellow particles in the water,bent down to pick them up and took them to his partner,a Mr Sut-ter.This was the beginning of the Californian Gold Rush.展开更多
文摘You’ve built a great web site.It’s well designed,it encourages customer interaction,and it’s filledwith compelling,well-organized content.Now comes the tough reality:Creating a great site doesn’tautomatically mean customers will visit it.With millions of web sites today,chances are slim that a customerwill randomly happen onto your site.That’s why it’s imperative that you use many strategies to get your web site noticed by the morethan 100 million people who now surf the Web.Here are seven ideas to help get you started:
基金supported by the National Natural Science Foundation of China (No.U19A2063)the Jilin Provincial Science&Technology Development Program of China (No.20230201080GX)。
文摘Although ray tracing produces high-fidelity, realistic images, it is considered computationally burdensome when implemented on a high rendering rate system. Perception-driven rendering techniques generate images with minimal noise and distortion that are generally acceptable to the human visual system, thereby reducing rendering costs. In this paper, we introduce a perception-entropy-driven temporal reusing method to accelerate real-time ray tracing. We first build a just noticeable difference(JND) model to represent the uncertainty of ray samples and image space masking effects. Then, we expand the shading gradient through gradient max-pooling and gradient filtering to enlarge the visual receipt field. Finally, we dynamically optimize reusable time segments to improve the accuracy of temporal reusing. Compared with Monte Carlo ray tracing, our algorithm enhances frames per second(fps) by 1.93× to 2.96× at 8 to 16 samples per pixel, significantly accelerating the Monte Carlo ray tracing process while maintaining visual quality.
文摘Brand awareness gains prominence in Suzhou Industrial Park Chinese mantrfacturers have long been the original equipment manufactur- ers for their foreign counterparts due to a lack of innovation and world- known brands.But signs point to a change in this department,where manufacturers in Suzhou are realizing that branding is no longer just a fancy business term,but a very real survival necessity.
文摘This paper presents an investigation on the effect of JPEG compression on the similarity between the target image and the background,where the similarity is further used to determine the degree of clutter in the image.Four new clutter metrics based on image quality assessment are introduced,among which the Haar wavelet-based perceptual similarity index,known as HaarPSI,provides the best target acquisition prediction results.It is shown that the similarity between the target and the background at the boundary between visually lossless and visually lossy compression does not change significantly compared to the case when an uncompressed image is used.In future work,through subjective tests,it is necessary to check whether this presence of compression at the threshold of just noticeable differences will affect the human target acquisition performance.Similarity values are compared with the results of subjective tests of the well-known target Search_2 database,where the degree of agreement between objective and subjective scores,measured through linear correlation,reached a value of 90%.
基金supported by the National Key Research and Development Program of China(2018YFD1000300)National Crop Germplasm Resources Protection of Ministry of Agriculture of China(NB2018-2130135-07)。
文摘Since the publication of this article,the authors have noticed that the part of acknowledgement is missing from article.Here is the acknowledgement.
文摘It was shown that the level of cells with chromo-some aberration was elevated in a patient withopisthorchiasis in addition to this the possibi-lity of canceraus hepatic transformation increasedsharply.The investigation of biotransformativeactivity of S-9,fraction of microsomes
文摘The methods of in vitro and in vivo-in vitro combinationassay for autoradiographic detection of unscheduled DNAsynthesis(UDS)induced by chemical carcinogens wasestablished.To estimate the reliability of these assays,UDS in tissues slices was measured with the establishedmethods after exposure to MNNG and dimethylnitrosamine(DMN)in vitro or in vivo respectively.To study thesusceptibility of various tissues to chemicals,UDS
文摘A series of studies and surveys on the hazard identification of syntheticdetergents LAS & AEO were conducted.They are the chief ingredients of tootonnage washing formuiations and main polltant in surface water.Resultsare summarized as the followings:1) Low acute and chronic toxicities,thecummulative effect was negligible;2) Essentially negative in 5 short termgenetotoxic tests;3) Anti-mutagenic effect has been shown in five in vitroand in vivo tests;4) No evidence of malignant transformation has
文摘Apparent discrepancy exists between Schmidt's Noticing Hypothesis and Krashen's Input Hypothesis. Whilst Krashen highlights the importance of comprehensible input and asserts that language is acquired unconciously, the notion of conscious learning has gained wide support from Schmidt and other researchers. They argue that noticing enhances second language development as one crucial level of consciousness. By reviewing the theoretical constructs that underlie the role of noticing, this paper aims to justify the role of noticing as one crucial level of consciousness in enhancing second language learning.
文摘"Noticing"is emphasized for its great influence on second language learning. Based on the previous related studies,this paper attempts to apply noticing theory to English writing teaching and learning in China by means of the enlargement of input,the implement of output-oriented activities and the focus on feedback.
文摘I was shopping at a department store and had just boardedthe down escalator when I noticed a woman standing to the side.She looked about 65,and her expression told me she was scared.Iturned toward her and asked,“Do you need help?”
文摘Speaker A:I’ve noticed that many people who’ve learned to speak aforeign language don’t know how to say the letters of that language.They don’t know its alphabet.Speaker B.Well,you don’t really have to know how to say the
文摘One day in 1848 a carpenter named Marshall,who worked ina saw mill on the American River in California,made a remarkablediscovery.He noticed some bright yellow particles in the water,bent down to pick them up and took them to his partner,a Mr Sut-ter.This was the beginning of the Californian Gold Rush.
